1 /* Broadcom NetXtreme-C/E network driver. 2 * 3 * Copyright (c) 2014-2016 Broadcom Corporation 4 * Copyright (c) 2016-2019 Broadcom Limited 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation. 9 */ 10 11 #include <linux/module.h> 12 13 #include <linux/stringify.h> 14 #include <linux/kernel.h> 15 #include <linux/timer.h> 16 #include <linux/errno.h> 17 #include <linux/ioport.h> 18 #include <linux/slab.h> 19 #include <linux/vmalloc.h> 20 #include <linux/interrupt.h> 21 #include <linux/pci.h> 22 #include <linux/netdevice.h> 23 #include <linux/etherdevice.h> 24 #include <linux/skbuff.h> 25 #include <linux/dma-mapping.h> 26 #include <linux/bitops.h> 27 #include <linux/io.h> 28 #include <linux/irq.h> 29 #include <linux/delay.h> 30 #include <asm/byteorder.h> 31 #include <asm/page.h> 32 #include <linux/time.h> 33 #include <linux/mii.h> 34 #include <linux/mdio.h> 35 #include <linux/if.h> 36 #include <linux/if_vlan.h> 37 #include <linux/if_bridge.h> 38 #include <linux/rtc.h> 39 #include <linux/bpf.h> 40 #include <net/gro.h> 41 #include <net/ip.h> 42 #include <net/tcp.h> 43 #include <net/udp.h> 44 #include <net/checksum.h> 45 #include <net/ip6_checksum.h> 46 #include <net/udp_tunnel.h> 47 #include <linux/workqueue.h> 48 #include <linux/prefetch.h> 49 #include <linux/cache.h> 50 #include <linux/log2.h> 51 #include <linux/bitmap.h> 52 #include <linux/cpu_rmap.h> 53 #include <linux/cpumask.h> 54 #include <net/pkt_cls.h> 55 #include <net/page_pool/helpers.h> 56 #include <linux/align.h> 57 #include <net/netdev_lock.h> 58 #include <net/netdev_queues.h> 59 #include <net/netdev_rx_queue.h> 60 #include <linux/pci-tph.h> 61 #include <linux/bnxt/hsi.h> 62 #include <linux/bnxt/ulp.h> 63 64 #include "bnxt.h" 65 #include "bnxt_hwrm.h" 66 #include "bnxt_sriov.h" 67 #include "bnxt_ethtool.h" 68 #include "bnxt_dcb.h" 69 #include "bnxt_xdp.h" 70 #include "bnxt_ptp.h" 71 #include "bnxt_vfr.h" 72 #include "bnxt_tc.h" 73 #include "bnxt_devlink.h" 74 #include "bnxt_debugfs.h" 75 #include "bnxt_coredump.h" 76 #include "bnxt_hwmon.h" 77 #include "bnxt_gso.h" 78 #include <net/tso.h> 79 80 #define BNXT_TX_TIMEOUT (5 * HZ) 81 #define BNXT_DEF_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_HW | \ 82 NETIF_MSG_TX_ERR) 83 84 MODULE_IMPORT_NS("NETDEV_INTERNAL"); 85 MODULE_LICENSE("GPL"); 86 MODULE_DESCRIPTION("Broadcom NetXtreme network driver"); 87 88 #define BNXT_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN) 89 #define BNXT_RX_DMA_OFFSET NET_SKB_PAD 90 91 #define BNXT_TX_PUSH_THRESH 164 92 93 /* indexed by enum board_idx */ 94 static const struct { 95 char *name; 96 } board_info[] = { 97 [BCM57301] = { "Broadcom BCM57301 NetXtreme-C 10Gb Ethernet" }, 98 [BCM57302] = { "Broadcom BCM57302 NetXtreme-C 10Gb/25Gb Ethernet" }, 99 [BCM57304] = { "Broadcom BCM57304 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" }, 100 [BCM57417_NPAR] = { "Broadcom BCM57417 NetXtreme-E Ethernet Partition" }, 101 [BCM58700] = { "Broadcom BCM58700 Nitro 1Gb/2.5Gb/10Gb Ethernet" }, 102 [BCM57311] = { "Broadcom BCM57311 NetXtreme-C 10Gb Ethernet" }, 103 [BCM57312] = { "Broadcom BCM57312 NetXtreme-C 10Gb/25Gb Ethernet" }, 104 [BCM57402] = { "Broadcom BCM57402 NetXtreme-E 10Gb Ethernet" }, 105 [BCM57404] = { "Broadcom BCM57404 NetXtreme-E 10Gb/25Gb Ethernet" }, 106 [BCM57406] = { "Broadcom BCM57406 NetXtreme-E 10GBase-T Ethernet" }, 107 [BCM57402_NPAR] = { "Broadcom BCM57402 NetXtreme-E Ethernet Partition" }, 108 [BCM57407] = { "Broadcom BCM57407 NetXtreme-E 10GBase-T Ethernet" }, 109 [BCM57412] = { "Broadcom BCM57412 NetXtreme-E 10Gb Ethernet" }, 110 [BCM57414] = { "Broadcom BCM57414 NetXtreme-E 10Gb/25Gb Ethernet" }, 111 [BCM57416] = { "Broadcom BCM57416 NetXtreme-E 10GBase-T Ethernet" }, 112 [BCM57417] = { "Broadcom BCM57417 NetXtreme-E 10GBase-T Ethernet" }, 113 [BCM57412_NPAR] = { "Broadcom BCM57412 NetXtreme-E Ethernet Partition" }, 114 [BCM57314] = { "Broadcom BCM57314 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" }, 115 [BCM57417_SFP] = { "Broadcom BCM57417 NetXtreme-E 10Gb/25Gb Ethernet" }, 116 [BCM57416_SFP] = { "Broadcom BCM57416 NetXtreme-E 10Gb Ethernet" }, 117 [BCM57404_NPAR] = { "Broadcom BCM57404 NetXtreme-E Ethernet Partition" }, 118 [BCM57406_NPAR] = { "Broadcom BCM57406 NetXtreme-E Ethernet Partition" }, 119 [BCM57407_SFP] = { "Broadcom BCM57407 NetXtreme-E 25Gb Ethernet" }, 120 [BCM57407_NPAR] = { "Broadcom BCM57407 NetXtreme-E Ethernet Partition" }, 121 [BCM57414_NPAR] = { "Broadcom BCM57414 NetXtreme-E Ethernet Partition" }, 122 [BCM57416_NPAR] = { "Broadcom BCM57416 NetXtreme-E Ethernet Partition" }, 123 [BCM57452] = { "Broadcom BCM57452 NetXtreme-E 10Gb/25Gb/40Gb/50Gb Ethernet" }, 124 [BCM57454] = { "Broadcom BCM57454 NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, 125 [BCM5745x_NPAR] = { "Broadcom BCM5745x NetXtreme-E Ethernet Partition" }, 126 [BCM57508] = { "Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" }, 127 [BCM57504] = { "Broadcom BCM57504 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" }, 128 [BCM57502] = { "Broadcom BCM57502 NetXtreme-E 10Gb/25Gb/50Gb Ethernet" }, 129 [BCM57608] = { "Broadcom BCM57608 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb/400Gb Ethernet" }, 130 [BCM57604] = { "Broadcom BCM57604 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" }, 131 [BCM57602] = { "Broadcom BCM57602 NetXtreme-E 10Gb/25Gb/50Gb/100Gb Ethernet" }, 132 [BCM57601] = { "Broadcom BCM57601 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb/400Gb Ethernet" }, 133 [BCM57508_NPAR] = { "Broadcom BCM57508 NetXtreme-E Ethernet Partition" }, 134 [BCM57504_NPAR] = { "Broadcom BCM57504 NetXtreme-E Ethernet Partition" }, 135 [BCM57502_NPAR] = { "Broadcom BCM57502 NetXtreme-E Ethernet Partition" }, 136 [BCM58802] = { "Broadcom BCM58802 NetXtreme-S 10Gb/25Gb/40Gb/50Gb Ethernet" }, 137 [BCM58804] = { "Broadcom BCM58804 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, 138 [BCM58808] = { "Broadcom BCM58808 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, 139 [NETXTREME_E_VF] = { "Broadcom NetXtreme-E Ethernet Virtual Function" }, 140 [NETXTREME_C_VF] = { "Broadcom NetXtreme-C Ethernet Virtual Function" }, 141 [NETXTREME_S_VF] = { "Broadcom NetXtreme-S Ethernet Virtual Function" }, 142 [NETXTREME_C_VF_HV] = { "Broadcom NetXtreme-C Virtual Function for Hyper-V" }, 143 [NETXTREME_E_VF_HV] = { "Broadcom NetXtreme-E Virtual Function for Hyper-V" }, 144 [NETXTREME_E_P5_VF] = { "Broadcom BCM5750X NetXtreme-E Ethernet Virtual Function" }, 145 [NETXTREME_E_P5_VF_HV] = { "Broadcom BCM5750X NetXtreme-E Virtual Function for Hyper-V" }, 146 [NETXTREME_E_P7_VF] = { "Broadcom BCM5760X Virtual Function" }, 147 [NETXTREME_E_P7_VF_HV] = { "Broadcom BCM5760X Virtual Function for Hyper-V" }, 148 }; 149 150 static const struct pci_device_id bnxt_pci_tbl[] = { 151 { PCI_VDEVICE(BROADCOM, 0x1604), .driver_data = BCM5745x_NPAR }, 152 { PCI_VDEVICE(BROADCOM, 0x1605), .driver_data = BCM5745x_NPAR }, 153 { PCI_VDEVICE(BROADCOM, 0x1614), .driver_data = BCM57454 }, 154 { PCI_VDEVICE(BROADCOM, 0x16c0), .driver_data = BCM57417_NPAR }, 155 { PCI_VDEVICE(BROADCOM, 0x16c8), .driver_data = BCM57301 }, 156 { PCI_VDEVICE(BROADCOM, 0x16c9), .driver_data = BCM57302 }, 157 { PCI_VDEVICE(BROADCOM, 0x16ca), .driver_data = BCM57304 }, 158 { PCI_VDEVICE(BROADCOM, 0x16cc), .driver_data = BCM57417_NPAR }, 159 { PCI_VDEVICE(BROADCOM, 0x16cd), .driver_data = BCM58700 }, 160 { PCI_VDEVICE(BROADCOM, 0x16ce), .driver_data = BCM57311 }, 161 { PCI_VDEVICE(BROADCOM, 0x16cf), .driver_data = BCM57312 }, 162 { PCI_VDEVICE(BROADCOM, 0x16d0), .driver_data = BCM57402 }, 163 { PCI_VDEVICE(BROADCOM, 0x16d1), .driver_data = BCM57404 }, 164 { PCI_VDEVICE(BROADCOM, 0x16d2), .driver_data = BCM57406 }, 165 { PCI_VDEVICE(BROADCOM, 0x16d4), .driver_data = BCM57402_NPAR }, 166 { PCI_VDEVICE(BROADCOM, 0x16d5), .driver_data = BCM57407 }, 167 { PCI_VDEVICE(BROADCOM, 0x16d6), .driver_data = BCM57412 }, 168 { PCI_VDEVICE(BROADCOM, 0x16d7), .driver_data = BCM57414 }, 169 { PCI_VDEVICE(BROADCOM, 0x16d8), .driver_data = BCM57416 }, 170 { PCI_VDEVICE(BROADCOM, 0x16d9), .driver_data = BCM57417 }, 171 { PCI_VDEVICE(BROADCOM, 0x16de), .driver_data = BCM57412_NPAR }, 172 { PCI_VDEVICE(BROADCOM, 0x16df), .driver_data = BCM57314 }, 173 { PCI_VDEVICE(BROADCOM, 0x16e2), .driver_data = BCM57417_SFP }, 174 { PCI_VDEVICE(BROADCOM, 0x16e3), .driver_data = BCM57416_SFP }, 175 { PCI_VDEVICE(BROADCOM, 0x16e7), .driver_data = BCM57404_NPAR }, 176 { PCI_VDEVICE(BROADCOM, 0x16e8), .driver_data = BCM57406_NPAR }, 177 { PCI_VDEVICE(BROADCOM, 0x16e9), .driver_data = BCM57407_SFP }, 178 { PCI_VDEVICE(BROADCOM, 0x16ea), .driver_data = BCM57407_NPAR }, 179 { PCI_VDEVICE(BROADCOM, 0x16eb), .driver_data = BCM57412_NPAR }, 180 { PCI_VDEVICE(BROADCOM, 0x16ec), .driver_data = BCM57414_NPAR }, 181 { PCI_VDEVICE(BROADCOM, 0x16ed), .driver_data = BCM57414_NPAR }, 182 { PCI_VDEVICE(BROADCOM, 0x16ee), .driver_data = BCM57416_NPAR }, 183 { PCI_VDEVICE(BROADCOM, 0x16ef), .driver_data = BCM57416_NPAR }, 184 { PCI_VDEVICE(BROADCOM, 0x16f0), .driver_data = BCM58808 }, 185 { PCI_VDEVICE(BROADCOM, 0x16f1), .driver_data = BCM57452 }, 186 { PCI_VDEVICE(BROADCOM, 0x1750), .driver_data = BCM57508 }, 187 { PCI_VDEVICE(BROADCOM, 0x1751), .driver_data = BCM57504 }, 188 { PCI_VDEVICE(BROADCOM, 0x1752), .driver_data = BCM57502 }, 189 { PCI_VDEVICE(BROADCOM, 0x1760), .driver_data = BCM57608 }, 190 { PCI_VDEVICE(BROADCOM, 0x1761), .driver_data = BCM57604 }, 191 { PCI_VDEVICE(BROADCOM, 0x1762), .driver_data = BCM57602 }, 192 { PCI_VDEVICE(BROADCOM, 0x1763), .driver_data = BCM57601 }, 193 { PCI_VDEVICE(BROADCOM, 0x1800), .driver_data = BCM57502_NPAR }, 194 { PCI_VDEVICE(BROADCOM, 0x1801), .driver_data = BCM57504_NPAR }, 195 { PCI_VDEVICE(BROADCOM, 0x1802), .driver_data = BCM57508_NPAR }, 196 { PCI_VDEVICE(BROADCOM, 0x1803), .driver_data = BCM57502_NPAR }, 197 { PCI_VDEVICE(BROADCOM, 0x1804), .driver_data = BCM57504_NPAR }, 198 { PCI_VDEVICE(BROADCOM, 0x1805), .driver_data = BCM57508_NPAR }, 199 { PCI_VDEVICE(BROADCOM, 0xd802), .driver_data = BCM58802 }, 200 { PCI_VDEVICE(BROADCOM, 0xd804), .driver_data = BCM58804 }, 201 #ifdef CONFIG_BNXT_SRIOV 202 { PCI_VDEVICE(BROADCOM, 0x1606), .driver_data = NETXTREME_E_VF }, 203 { PCI_VDEVICE(BROADCOM, 0x1607), .driver_data = NETXTREME_E_VF_HV }, 204 { PCI_VDEVICE(BROADCOM, 0x1608), .driver_data = NETXTREME_E_VF_HV }, 205 { PCI_VDEVICE(BROADCOM, 0x1609), .driver_data = NETXTREME_E_VF }, 206 { PCI_VDEVICE(BROADCOM, 0x16bd), .driver_data = NETXTREME_E_VF_HV }, 207 { PCI_VDEVICE(BROADCOM, 0x16c1), .driver_data = NETXTREME_E_VF }, 208 { PCI_VDEVICE(BROADCOM, 0x16c2), .driver_data = NETXTREME_C_VF_HV }, 209 { PCI_VDEVICE(BROADCOM, 0x16c3), .driver_data = NETXTREME_C_VF_HV }, 210 { PCI_VDEVICE(BROADCOM, 0x16c4), .driver_data = NETXTREME_E_VF_HV }, 211 { PCI_VDEVICE(BROADCOM, 0x16c5), .driver_data = NETXTREME_E_VF_HV }, 212 { PCI_VDEVICE(BROADCOM, 0x16cb), .driver_data = NETXTREME_C_VF }, 213 { PCI_VDEVICE(BROADCOM, 0x16d3), .driver_data = NETXTREME_E_VF }, 214 { PCI_VDEVICE(BROADCOM, 0x16dc), .driver_data = NETXTREME_E_VF }, 215 { PCI_VDEVICE(BROADCOM, 0x16e1), .driver_data = NETXTREME_C_VF }, 216 { PCI_VDEVICE(BROADCOM, 0x16e5), .driver_data = NETXTREME_C_VF }, 217 { PCI_VDEVICE(BROADCOM, 0x16e6), .driver_data = NETXTREME_C_VF_HV }, 218 { PCI_VDEVICE(BROADCOM, 0x1806), .driver_data = NETXTREME_E_P5_VF }, 219 { PCI_VDEVICE(BROADCOM, 0x1807), .driver_data = NETXTREME_E_P5_VF }, 220 { PCI_VDEVICE(BROADCOM, 0x1808), .driver_data = NETXTREME_E_P5_VF_HV }, 221 { PCI_VDEVICE(BROADCOM, 0x1809), .driver_data = NETXTREME_E_P5_VF_HV }, 222 { PCI_VDEVICE(BROADCOM, 0x1819), .driver_data = NETXTREME_E_P7_VF }, 223 { PCI_VDEVICE(BROADCOM, 0x181b), .driver_data = NETXTREME_E_P7_VF_HV }, 224 { PCI_VDEVICE(BROADCOM, 0xd800), .driver_data = NETXTREME_S_VF }, 225 #endif 226 { 0 } 227 }; 228 229 MODULE_DEVICE_TABLE(pci, bnxt_pci_tbl); 230 231 static const u16 bnxt_vf_req_snif[] = { 232 HWRM_FUNC_CFG, 233 HWRM_FUNC_VF_CFG, 234 HWRM_PORT_PHY_QCFG, 235 HWRM_CFA_L2_FILTER_ALLOC, 236 }; 237 238 static const u16 bnxt_async_events_arr[] = { 239 ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE, 240 ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE, 241 ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD, 242 ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED, 243 ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE, 244 ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE, 245 ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE, 246 ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY, 247 ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY, 248 ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION, 249 ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE, 250 ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG, 251 ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST, 252 ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP, 253 ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT, 254 ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE, 255 ASYNC_EVENT_CMPL_EVENT_ID_DBG_BUF_PRODUCER, 256 }; 257 258 const u16 bnxt_bstore_to_trace[] = { 259 [BNXT_CTX_SRT] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_SRT_TRACE, 260 [BNXT_CTX_SRT2] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_SRT2_TRACE, 261 [BNXT_CTX_CRT] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_CRT_TRACE, 262 [BNXT_CTX_CRT2] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_CRT2_TRACE, 263 [BNXT_CTX_RIGP0] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_RIGP0_TRACE, 264 [BNXT_CTX_L2HWRM] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_L2_HWRM_TRACE, 265 [BNXT_CTX_REHWRM] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_ROCE_HWRM_TRACE, 266 [BNXT_CTX_CA0] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_CA0_TRACE, 267 [BNXT_CTX_CA1] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_CA1_TRACE, 268 [BNXT_CTX_CA2] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_CA2_TRACE, 269 [BNXT_CTX_RIGP1] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_RIGP1_TRACE, 270 [BNXT_CTX_KONG] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_AFM_KONG_HWRM_TRACE, 271 [BNXT_CTX_QPC] = DBG_LOG_BUFFER_FLUSH_REQ_TYPE_ERR_QPC_TRACE, 272 }; 273 274 static struct workqueue_struct *bnxt_pf_wq; 275 276 #define BNXT_IPV6_MASK_ALL {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 277 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 278 #define BNXT_IPV6_MASK_NONE {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 279 280 const struct bnxt_flow_masks BNXT_FLOW_MASK_NONE = { 281 .ports = { 282 .src = 0, 283 .dst = 0, 284 }, 285 .addrs = { 286 .v6addrs = { 287 .src = BNXT_IPV6_MASK_NONE, 288 .dst = BNXT_IPV6_MASK_NONE, 289 }, 290 }, 291 }; 292 293 const struct bnxt_flow_masks BNXT_FLOW_IPV6_MASK_ALL = { 294 .ports = { 295 .src = cpu_to_be16(0xffff), 296 .dst = cpu_to_be16(0xffff), 297 }, 298 .addrs = { 299 .v6addrs = { 300 .src = BNXT_IPV6_MASK_ALL, 301 .dst = BNXT_IPV6_MASK_ALL, 302 }, 303 }, 304 }; 305 306 const struct bnxt_flow_masks BNXT_FLOW_IPV4_MASK_ALL = { 307 .ports = { 308 .src = cpu_to_be16(0xffff), 309 .dst = cpu_to_be16(0xffff), 310 }, 311 .addrs = { 312 .v4addrs = { 313 .src = cpu_to_be32(0xffffffff), 314 .dst = cpu_to_be32(0xffffffff), 315 }, 316 }, 317 }; 318 319 static bool bnxt_vf_pciid(enum board_idx idx) 320 { 321 return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF || 322 idx == NETXTREME_S_VF || idx == NETXTREME_C_VF_HV || 323 idx == NETXTREME_E_VF_HV || idx == NETXTREME_E_P5_VF || 324 idx == NETXTREME_E_P5_VF_HV || idx == NETXTREME_E_P7_VF || 325 idx == NETXTREME_E_P7_VF_HV); 326 } 327 328 #define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID) 329 #define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS) 330 331 #define BNXT_DB_CQ(db, idx) \ 332 writel(DB_CP_FLAGS | DB_RING_IDX(db, idx), (db)->doorbell) 333 334 #define BNXT_DB_NQ_P5(db, idx) \ 335 bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ | DB_RING_IDX(db, idx),\ 336 (db)->doorbell) 337 338 #define BNXT_DB_NQ_P7(db, idx) \ 339 bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ_MASK | \ 340 DB_RING_IDX(db, idx), (db)->doorbell) 341 342 #define BNXT_DB_CQ_ARM(db, idx) \ 343 writel(DB_CP_REARM_FLAGS | DB_RING_IDX(db, idx), (db)->doorbell) 344 345 #define BNXT_DB_NQ_ARM_P5(db, idx) \ 346 bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ_ARM | \ 347 DB_RING_IDX(db, idx), (db)->doorbell) 348 349 static void bnxt_db_nq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) 350 { 351 if (bp->flags & BNXT_FLAG_CHIP_P7) 352 BNXT_DB_NQ_P7(db, idx); 353 else if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 354 BNXT_DB_NQ_P5(db, idx); 355 else 356 BNXT_DB_CQ(db, idx); 357 } 358 359 static void bnxt_db_nq_arm(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) 360 { 361 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 362 BNXT_DB_NQ_ARM_P5(db, idx); 363 else 364 BNXT_DB_CQ_ARM(db, idx); 365 } 366 367 static void bnxt_db_cq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) 368 { 369 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 370 bnxt_writeq(bp, db->db_key64 | DBR_TYPE_CQ_ARMALL | 371 DB_RING_IDX(db, idx), db->doorbell); 372 else 373 BNXT_DB_CQ(db, idx); 374 } 375 376 static void bnxt_queue_fw_reset_work(struct bnxt *bp, unsigned long delay) 377 { 378 if (!(test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))) 379 return; 380 381 if (BNXT_PF(bp)) 382 queue_delayed_work(bnxt_pf_wq, &bp->fw_reset_task, delay); 383 else 384 schedule_delayed_work(&bp->fw_reset_task, delay); 385 } 386 387 static void __bnxt_queue_sp_work(struct bnxt *bp) 388 { 389 if (BNXT_PF(bp)) 390 queue_work(bnxt_pf_wq, &bp->sp_task); 391 else 392 schedule_work(&bp->sp_task); 393 } 394 395 static void bnxt_queue_sp_work(struct bnxt *bp, unsigned int event) 396 { 397 set_bit(event, &bp->sp_event); 398 __bnxt_queue_sp_work(bp); 399 } 400 401 static void bnxt_sched_reset_rxr(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) 402 { 403 if (!rxr->bnapi->in_reset) { 404 rxr->bnapi->in_reset = true; 405 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 406 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); 407 else 408 set_bit(BNXT_RST_RING_SP_EVENT, &bp->sp_event); 409 __bnxt_queue_sp_work(bp); 410 } 411 rxr->rx_next_cons = 0xffff; 412 } 413 414 void bnxt_sched_reset_txr(struct bnxt *bp, struct bnxt_tx_ring_info *txr, 415 u16 curr) 416 { 417 struct bnxt_napi *bnapi = txr->bnapi; 418 419 if (bnapi->tx_fault) 420 return; 421 422 netdev_err(bp->dev, "Invalid Tx completion (ring:%d tx_hw_cons:%u cons:%u prod:%u curr:%u)", 423 txr->txq_index, txr->tx_hw_cons, 424 txr->tx_cons, txr->tx_prod, curr); 425 WARN_ON_ONCE(1); 426 bnapi->tx_fault = 1; 427 bnxt_queue_sp_work(bp, BNXT_RESET_TASK_SP_EVENT); 428 } 429 430 const u16 bnxt_lhint_arr[] = { 431 TX_BD_FLAGS_LHINT_512_AND_SMALLER, 432 TX_BD_FLAGS_LHINT_512_TO_1023, 433 TX_BD_FLAGS_LHINT_1024_TO_2047, 434 TX_BD_FLAGS_LHINT_1024_TO_2047, 435 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 436 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 437 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 438 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 439 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 440 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 441 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 442 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 443 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 444 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 445 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 446 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 447 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 448 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 449 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 450 }; 451 452 u16 bnxt_xmit_get_cfa_action(struct sk_buff *skb) 453 { 454 struct metadata_dst *md_dst = skb_metadata_dst(skb); 455 456 if (!md_dst || md_dst->type != METADATA_HW_PORT_MUX) 457 return 0; 458 459 return md_dst->u.port_info.port_id; 460 } 461 462 static void bnxt_txr_db_kick(struct bnxt *bp, struct bnxt_tx_ring_info *txr, 463 u16 prod) 464 { 465 /* Sync BD data before updating doorbell */ 466 wmb(); 467 bnxt_db_write(bp, &txr->tx_db, prod); 468 txr->kick_pending = 0; 469 } 470 471 static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev) 472 { 473 struct bnxt *bp = netdev_priv(dev); 474 struct tx_bd *txbd, *txbd0; 475 struct tx_bd_ext *txbd1; 476 struct netdev_queue *txq; 477 int i; 478 dma_addr_t mapping; 479 unsigned int length, pad = 0; 480 u32 len, free_size, vlan_tag_flags, cfa_action, flags; 481 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 482 struct pci_dev *pdev = bp->pdev; 483 u16 prod, last_frag, txts_prod; 484 struct bnxt_tx_ring_info *txr; 485 struct bnxt_sw_tx_bd *tx_buf; 486 __le32 lflags = 0; 487 skb_frag_t *frag; 488 489 i = skb_get_queue_mapping(skb); 490 if (unlikely(i >= bp->tx_nr_rings)) { 491 dev_kfree_skb_any(skb); 492 dev_core_stats_tx_dropped_inc(dev); 493 return NETDEV_TX_OK; 494 } 495 496 txq = netdev_get_tx_queue(dev, i); 497 txr = &bp->tx_ring[bp->tx_ring_map[i]]; 498 prod = txr->tx_prod; 499 500 #if (MAX_SKB_FRAGS > TX_MAX_FRAGS) 501 if (skb_shinfo(skb)->nr_frags > TX_MAX_FRAGS) { 502 netdev_warn_once(dev, "SKB has too many (%d) fragments, max supported is %d. SKB will be linearized.\n", 503 skb_shinfo(skb)->nr_frags, TX_MAX_FRAGS); 504 if (skb_linearize(skb)) { 505 dev_kfree_skb_any(skb); 506 dev_core_stats_tx_dropped_inc(dev); 507 return NETDEV_TX_OK; 508 } 509 } 510 #endif 511 if (skb_is_gso(skb) && 512 (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) && 513 !(bp->flags & BNXT_FLAG_UDP_GSO_CAP)) 514 return bnxt_sw_udp_gso_xmit(bp, txr, txq, skb); 515 516 free_size = bnxt_tx_avail(bp, txr); 517 if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) { 518 /* We must have raced with NAPI cleanup */ 519 if (net_ratelimit() && txr->kick_pending) 520 netif_warn(bp, tx_err, dev, 521 "bnxt: ring busy w/ flush pending!\n"); 522 if (!netif_txq_try_stop(txq, bnxt_tx_avail(bp, txr), 523 bp->tx_wake_thresh)) 524 return NETDEV_TX_BUSY; 525 } 526 527 length = skb->len; 528 len = skb_headlen(skb); 529 last_frag = skb_shinfo(skb)->nr_frags; 530 531 txbd = &txr->tx_desc_ring[TX_RING(bp, prod)][TX_IDX(prod)]; 532 533 tx_buf = &txr->tx_buf_ring[RING_TX(bp, prod)]; 534 tx_buf->skb = skb; 535 tx_buf->nr_frags = last_frag; 536 537 vlan_tag_flags = 0; 538 cfa_action = bnxt_xmit_get_cfa_action(skb); 539 if (skb_vlan_tag_present(skb)) { 540 vlan_tag_flags = TX_BD_CFA_META_KEY_VLAN | 541 skb_vlan_tag_get(skb); 542 /* Currently supports 8021Q, 8021AD vlan offloads 543 * QINQ1, QINQ2, QINQ3 vlan headers are deprecated 544 */ 545 if (skb->vlan_proto == htons(ETH_P_8021Q)) 546 vlan_tag_flags |= 1 << TX_BD_CFA_META_TPID_SHIFT; 547 } 548 549 if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && ptp && 550 ptp->tx_tstamp_en) { 551 if (bp->fw_cap & BNXT_FW_CAP_TX_TS_CMP) { 552 lflags |= cpu_to_le32(TX_BD_FLAGS_STAMP); 553 tx_buf->is_ts_pkt = 1; 554 skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; 555 } else if (!skb_is_gso(skb)) { 556 u16 seq_id, hdr_off; 557 558 if (!bnxt_ptp_parse(skb, &seq_id, &hdr_off) && 559 !bnxt_ptp_get_txts_prod(ptp, &txts_prod)) { 560 if (vlan_tag_flags) 561 hdr_off += VLAN_HLEN; 562 lflags |= cpu_to_le32(TX_BD_FLAGS_STAMP); 563 tx_buf->is_ts_pkt = 1; 564 skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; 565 566 ptp->txts_req[txts_prod].tx_seqid = seq_id; 567 ptp->txts_req[txts_prod].tx_hdr_off = hdr_off; 568 tx_buf->txts_prod = txts_prod; 569 } 570 } 571 } 572 if (unlikely(skb->no_fcs)) 573 lflags |= cpu_to_le32(TX_BD_FLAGS_NO_CRC); 574 575 if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh && 576 skb_frags_readable(skb) && !lflags) { 577 struct tx_push_buffer *tx_push_buf = txr->tx_push; 578 struct tx_push_bd *tx_push = &tx_push_buf->push_bd; 579 struct tx_bd_ext *tx_push1 = &tx_push->txbd2; 580 void __iomem *db = txr->tx_db.doorbell; 581 void *pdata = tx_push_buf->data; 582 u64 *end; 583 int j, push_len; 584 585 /* Set COAL_NOW to be ready quickly for the next push */ 586 tx_push->tx_bd_len_flags_type = 587 cpu_to_le32((length << TX_BD_LEN_SHIFT) | 588 TX_BD_TYPE_LONG_TX_BD | 589 TX_BD_FLAGS_LHINT_512_AND_SMALLER | 590 TX_BD_FLAGS_COAL_NOW | 591 TX_BD_FLAGS_PACKET_END | 592 TX_BD_CNT(2)); 593 594 if (skb->ip_summed == CHECKSUM_PARTIAL) 595 tx_push1->tx_bd_hsize_lflags = 596 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM); 597 else 598 tx_push1->tx_bd_hsize_lflags = 0; 599 600 tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags); 601 tx_push1->tx_bd_cfa_action = 602 cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT); 603 604 end = pdata + length; 605 end = PTR_ALIGN(end, 8) - 1; 606 *end = 0; 607 608 skb_copy_from_linear_data(skb, pdata, len); 609 pdata += len; 610 for (j = 0; j < last_frag; j++) { 611 void *fptr; 612 613 frag = &skb_shinfo(skb)->frags[j]; 614 fptr = skb_frag_address_safe(frag); 615 if (!fptr) 616 goto normal_tx; 617 618 memcpy(pdata, fptr, skb_frag_size(frag)); 619 pdata += skb_frag_size(frag); 620 } 621 622 txbd->tx_bd_len_flags_type = tx_push->tx_bd_len_flags_type; 623 txbd->tx_bd_haddr = txr->data_mapping; 624 txbd->tx_bd_opaque = SET_TX_OPAQUE(bp, txr, prod, 2); 625 prod = NEXT_TX(prod); 626 tx_push->tx_bd_opaque = txbd->tx_bd_opaque; 627 txbd = &txr->tx_desc_ring[TX_RING(bp, prod)][TX_IDX(prod)]; 628 memcpy(txbd, tx_push1, sizeof(*txbd)); 629 prod = NEXT_TX(prod); 630 tx_push->doorbell = 631 cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | 632 DB_RING_IDX(&txr->tx_db, prod)); 633 WRITE_ONCE(txr->tx_prod, prod); 634 635 tx_buf->is_push = 1; 636 netdev_tx_sent_queue(txq, skb->len); 637 wmb(); /* Sync is_push and byte queue before pushing data */ 638 639 push_len = (length + sizeof(*tx_push) + 7) / 8; 640 if (push_len > 16) { 641 __iowrite64_copy(db, tx_push_buf, 16); 642 __iowrite32_copy(db + 4, tx_push_buf + 1, 643 (push_len - 16) << 1); 644 } else { 645 __iowrite64_copy(db, tx_push_buf, push_len); 646 } 647 648 goto tx_done; 649 } 650 651 normal_tx: 652 if (length < BNXT_MIN_PKT_SIZE) { 653 pad = BNXT_MIN_PKT_SIZE - length; 654 if (skb_pad(skb, pad)) 655 /* SKB already freed. */ 656 goto tx_kick_pending; 657 length = BNXT_MIN_PKT_SIZE; 658 } 659 660 mapping = dma_map_single(&pdev->dev, skb->data, len, DMA_TO_DEVICE); 661 662 if (unlikely(dma_mapping_error(&pdev->dev, mapping))) 663 goto tx_free; 664 665 dma_unmap_addr_set(tx_buf, mapping, mapping); 666 dma_unmap_len_set(tx_buf, len, len); 667 flags = (len << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD | 668 TX_BD_CNT(last_frag + 2); 669 670 txbd->tx_bd_haddr = cpu_to_le64(mapping); 671 txbd->tx_bd_opaque = SET_TX_OPAQUE(bp, txr, prod, 2 + last_frag); 672 673 prod = NEXT_TX(prod); 674 txbd1 = bnxt_init_ext_bd(bp, txr, prod, lflags, vlan_tag_flags, 675 cfa_action); 676 677 if (skb_is_gso(skb)) { 678 bool udp_gso = !!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4); 679 u32 hdr_len; 680 681 if (skb->encapsulation) { 682 if (udp_gso) 683 hdr_len = skb_inner_transport_offset(skb) + 684 sizeof(struct udphdr); 685 else 686 hdr_len = skb_inner_tcp_all_headers(skb); 687 } else if (udp_gso) { 688 hdr_len = skb_transport_offset(skb) + 689 sizeof(struct udphdr); 690 } else { 691 hdr_len = skb_tcp_all_headers(skb); 692 } 693 694 txbd1->tx_bd_hsize_lflags |= cpu_to_le32(TX_BD_FLAGS_LSO | 695 TX_BD_FLAGS_T_IPID | 696 (hdr_len << (TX_BD_HSIZE_SHIFT - 1))); 697 length = skb_shinfo(skb)->gso_size; 698 txbd1->tx_bd_mss = cpu_to_le32(length); 699 length += hdr_len; 700 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 701 txbd1->tx_bd_hsize_lflags |= 702 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM); 703 } 704 705 length >>= 9; 706 if (unlikely(length >= ARRAY_SIZE(bnxt_lhint_arr))) { 707 dev_warn_ratelimited(&pdev->dev, "Dropped oversize %d bytes TX packet.\n", 708 skb->len); 709 i = 0; 710 goto tx_dma_error; 711 } 712 flags |= bnxt_lhint_arr[length]; 713 txbd->tx_bd_len_flags_type = cpu_to_le32(flags); 714 715 txbd0 = txbd; 716 for (i = 0; i < last_frag; i++) { 717 frag = &skb_shinfo(skb)->frags[i]; 718 prod = NEXT_TX(prod); 719 txbd = &txr->tx_desc_ring[TX_RING(bp, prod)][TX_IDX(prod)]; 720 721 len = skb_frag_size(frag); 722 mapping = skb_frag_dma_map(&pdev->dev, frag, 0, len, 723 DMA_TO_DEVICE); 724 725 if (unlikely(dma_mapping_error(&pdev->dev, mapping))) 726 goto tx_dma_error; 727 728 tx_buf = &txr->tx_buf_ring[RING_TX(bp, prod)]; 729 netmem_dma_unmap_addr_set(skb_frag_netmem(frag), tx_buf, 730 mapping, mapping); 731 dma_unmap_len_set(tx_buf, len, len); 732 733 txbd->tx_bd_haddr = cpu_to_le64(mapping); 734 735 flags = len << TX_BD_LEN_SHIFT; 736 txbd->tx_bd_len_flags_type = cpu_to_le32(flags); 737 } 738 739 flags &= ~TX_BD_LEN; 740 txbd->tx_bd_len_flags_type = 741 cpu_to_le32(((len + pad) << TX_BD_LEN_SHIFT) | flags | 742 TX_BD_FLAGS_PACKET_END); 743 744 netdev_tx_sent_queue(txq, skb->len); 745 746 skb_tx_timestamp(skb); 747 748 prod = NEXT_TX(prod); 749 WRITE_ONCE(txr->tx_prod, prod); 750 751 if (!netdev_xmit_more() || netif_xmit_stopped(txq)) { 752 bnxt_txr_db_kick(bp, txr, prod); 753 } else { 754 if (free_size >= bp->tx_wake_thresh) 755 txbd0->tx_bd_len_flags_type |= 756 cpu_to_le32(TX_BD_FLAGS_NO_CMPL); 757 txr->kick_pending = 1; 758 } 759 760 tx_done: 761 762 if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) { 763 if (netdev_xmit_more() && !tx_buf->is_push) { 764 txbd0->tx_bd_len_flags_type &= 765 cpu_to_le32(~TX_BD_FLAGS_NO_CMPL); 766 bnxt_txr_db_kick(bp, txr, prod); 767 } 768 769 netif_txq_try_stop(txq, bnxt_tx_avail(bp, txr), 770 bp->tx_wake_thresh); 771 } 772 return NETDEV_TX_OK; 773 774 tx_dma_error: 775 last_frag = i; 776 777 /* start back at beginning and unmap skb */ 778 prod = txr->tx_prod; 779 tx_buf = &txr->tx_buf_ring[RING_TX(bp, prod)]; 780 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), 781 skb_headlen(skb), DMA_TO_DEVICE); 782 prod = NEXT_TX(prod); 783 784 /* unmap remaining mapped pages */ 785 for (i = 0; i < last_frag; i++) { 786 prod = NEXT_TX(prod); 787 tx_buf = &txr->tx_buf_ring[RING_TX(bp, prod)]; 788 frag = &skb_shinfo(skb)->frags[i]; 789 netmem_dma_unmap_page_attrs(&pdev->dev, 790 dma_unmap_addr(tx_buf, mapping), 791 skb_frag_size(frag), 792 DMA_TO_DEVICE, 0); 793 } 794 795 tx_free: 796 dev_kfree_skb_any(skb); 797 tx_kick_pending: 798 if (BNXT_TX_PTP_IS_SET(lflags)) { 799 txr->tx_buf_ring[RING_TX(bp, txr->tx_prod)].is_ts_pkt = 0; 800 atomic64_inc(&bp->ptp_cfg->stats.ts_err); 801 if (!(bp->fw_cap & BNXT_FW_CAP_TX_TS_CMP)) 802 /* set SKB to err so PTP worker will clean up */ 803 ptp->txts_req[txts_prod].tx_skb = ERR_PTR(-EIO); 804 } 805 if (txr->kick_pending) 806 bnxt_txr_db_kick(bp, txr, txr->tx_prod); 807 txr->tx_buf_ring[RING_TX(bp, txr->tx_prod)].skb = NULL; 808 dev_core_stats_tx_dropped_inc(dev); 809 return NETDEV_TX_OK; 810 } 811 812 /* Returns true if some remaining TX packets not processed. */ 813 static bool __bnxt_tx_int(struct bnxt *bp, struct bnxt_tx_ring_info *txr, 814 int budget) 815 { 816 struct netdev_queue *txq = netdev_get_tx_queue(bp->dev, txr->txq_index); 817 struct pci_dev *pdev = bp->pdev; 818 u16 hw_cons = txr->tx_hw_cons; 819 unsigned int tx_bytes = 0; 820 u16 cons = txr->tx_cons; 821 unsigned int dma_len; 822 dma_addr_t dma_addr; 823 int tx_pkts = 0; 824 bool rc = false; 825 826 while (RING_TX(bp, cons) != hw_cons) { 827 struct bnxt_sw_tx_bd *tx_buf, *head_buf; 828 struct sk_buff *skb; 829 bool is_ts_pkt; 830 int j, last; 831 832 tx_buf = &txr->tx_buf_ring[RING_TX(bp, cons)]; 833 head_buf = tx_buf; 834 skb = tx_buf->skb; 835 836 if (unlikely(!skb)) { 837 bnxt_sched_reset_txr(bp, txr, cons); 838 return rc; 839 } 840 841 is_ts_pkt = tx_buf->is_ts_pkt; 842 if (is_ts_pkt && (bp->fw_cap & BNXT_FW_CAP_TX_TS_CMP)) { 843 rc = true; 844 break; 845 } 846 847 cons = NEXT_TX(cons); 848 tx_pkts++; 849 tx_bytes += skb->len; 850 tx_buf->skb = NULL; 851 tx_buf->is_ts_pkt = 0; 852 853 if (tx_buf->is_push) { 854 tx_buf->is_push = 0; 855 goto next_tx_int; 856 } 857 858 if (dma_unmap_len(tx_buf, len)) { 859 dma_addr = dma_unmap_addr(tx_buf, mapping); 860 dma_len = dma_unmap_len(tx_buf, len); 861 862 dma_unmap_single(&pdev->dev, dma_addr, dma_len, 863 DMA_TO_DEVICE); 864 } 865 866 last = tx_buf->nr_frags; 867 868 for (j = 0; j < last; j++) { 869 cons = NEXT_TX(cons); 870 tx_buf = &txr->tx_buf_ring[RING_TX(bp, cons)]; 871 if (dma_unmap_len(tx_buf, len)) { 872 dma_addr = dma_unmap_addr(tx_buf, mapping); 873 dma_len = dma_unmap_len(tx_buf, len); 874 875 netmem_dma_unmap_page_attrs(&pdev->dev, 876 dma_addr, dma_len, 877 DMA_TO_DEVICE, 0); 878 } 879 } 880 881 if (unlikely(head_buf->is_sw_gso)) { 882 u16 inline_cons = txr->tx_inline_cons + 1; 883 884 WRITE_ONCE(txr->tx_inline_cons, inline_cons); 885 if (head_buf->is_sw_gso == BNXT_SW_GSO_LAST) { 886 tso_dma_map_complete(&pdev->dev, 887 &head_buf->sw_gso_cstate); 888 } else { 889 tx_pkts--; 890 tx_bytes -= skb->len; 891 skb = NULL; 892 } 893 head_buf->is_sw_gso = 0; 894 } 895 896 if (unlikely(is_ts_pkt)) { 897 if (BNXT_CHIP_P5(bp)) { 898 /* PTP worker takes ownership of the skb */ 899 bnxt_get_tx_ts_p5(bp, skb, tx_buf->txts_prod); 900 skb = NULL; 901 } 902 } 903 904 next_tx_int: 905 cons = NEXT_TX(cons); 906 907 napi_consume_skb(skb, budget); 908 } 909 910 WRITE_ONCE(txr->tx_cons, cons); 911 912 __netif_txq_completed_wake(txq, tx_pkts, tx_bytes, 913 bnxt_tx_avail(bp, txr), bp->tx_wake_thresh, 914 READ_ONCE(txr->dev_state) == BNXT_DEV_STATE_CLOSING); 915 916 return rc; 917 } 918 919 static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int budget) 920 { 921 struct bnxt_tx_ring_info *txr; 922 bool more = false; 923 int i; 924 925 bnxt_for_each_napi_tx(i, bnapi, txr) { 926 if (txr->tx_hw_cons != RING_TX(bp, txr->tx_cons)) 927 more |= __bnxt_tx_int(bp, txr, budget); 928 } 929 if (!more) 930 bnapi->events &= ~BNXT_TX_CMP_EVENT; 931 } 932 933 static bool bnxt_separate_head_pool(struct bnxt_rx_ring_info *rxr) 934 { 935 return rxr->need_head_pool || rxr->rx_page_size < PAGE_SIZE; 936 } 937 938 static struct page *__bnxt_alloc_rx_page(struct bnxt *bp, dma_addr_t *mapping, 939 struct bnxt_rx_ring_info *rxr, 940 unsigned int *offset, 941 gfp_t gfp) 942 { 943 struct page *page; 944 945 if (rxr->rx_page_size < PAGE_SIZE) { 946 page = page_pool_dev_alloc_frag(rxr->page_pool, offset, 947 rxr->rx_page_size); 948 } else { 949 page = page_pool_dev_alloc_pages(rxr->page_pool); 950 *offset = 0; 951 } 952 if (!page) 953 return NULL; 954 955 *mapping = page_pool_get_dma_addr(page) + *offset; 956 return page; 957 } 958 959 static netmem_ref __bnxt_alloc_rx_netmem(struct bnxt *bp, dma_addr_t *mapping, 960 struct bnxt_rx_ring_info *rxr, 961 unsigned int *offset, 962 gfp_t gfp) 963 { 964 netmem_ref netmem; 965 966 if (rxr->rx_page_size < PAGE_SIZE) { 967 netmem = page_pool_alloc_frag_netmem(rxr->page_pool, offset, 968 rxr->rx_page_size, gfp); 969 } else { 970 netmem = page_pool_alloc_netmems(rxr->page_pool, gfp); 971 *offset = 0; 972 } 973 if (!netmem) 974 return 0; 975 976 *mapping = page_pool_get_dma_addr_netmem(netmem) + *offset; 977 return netmem; 978 } 979 980 static inline u8 *__bnxt_alloc_rx_frag(struct bnxt *bp, dma_addr_t *mapping, 981 struct bnxt_rx_ring_info *rxr, 982 gfp_t gfp) 983 { 984 unsigned int offset; 985 struct page *page; 986 987 page = page_pool_alloc_frag(rxr->head_pool, &offset, 988 bp->rx_buf_size, gfp); 989 if (!page) 990 return NULL; 991 992 *mapping = page_pool_get_dma_addr(page) + bp->rx_dma_offset + offset; 993 return page_address(page) + offset; 994 } 995 996 int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 997 u16 prod, gfp_t gfp) 998 { 999 struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(bp, prod)][RX_IDX(prod)]; 1000 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[RING_RX(bp, prod)]; 1001 dma_addr_t mapping; 1002 1003 if (BNXT_RX_PAGE_MODE(bp)) { 1004 unsigned int offset; 1005 struct page *page = 1006 __bnxt_alloc_rx_page(bp, &mapping, rxr, &offset, gfp); 1007 1008 if (!page) 1009 return -ENOMEM; 1010 1011 mapping += bp->rx_dma_offset; 1012 rx_buf->data = page; 1013 rx_buf->data_ptr = page_address(page) + offset + bp->rx_offset; 1014 rx_buf->offset = offset; 1015 } else { 1016 u8 *data = __bnxt_alloc_rx_frag(bp, &mapping, rxr, gfp); 1017 1018 if (!data) 1019 return -ENOMEM; 1020 1021 rx_buf->data = data; 1022 rx_buf->data_ptr = data + bp->rx_offset; 1023 rx_buf->offset = 0; 1024 } 1025 rx_buf->mapping = mapping; 1026 1027 rxbd->rx_bd_haddr = cpu_to_le64(mapping); 1028 return 0; 1029 } 1030 1031 void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons, void *data) 1032 { 1033 u16 prod = rxr->rx_prod; 1034 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf; 1035 struct bnxt *bp = rxr->bnapi->bp; 1036 struct rx_bd *cons_bd, *prod_bd; 1037 1038 prod_rx_buf = &rxr->rx_buf_ring[RING_RX(bp, prod)]; 1039 cons_rx_buf = &rxr->rx_buf_ring[cons]; 1040 1041 prod_rx_buf->data = data; 1042 prod_rx_buf->data_ptr = cons_rx_buf->data_ptr; 1043 1044 prod_rx_buf->mapping = cons_rx_buf->mapping; 1045 prod_rx_buf->offset = cons_rx_buf->offset; 1046 1047 prod_bd = &rxr->rx_desc_ring[RX_RING(bp, prod)][RX_IDX(prod)]; 1048 cons_bd = &rxr->rx_desc_ring[RX_RING(bp, cons)][RX_IDX(cons)]; 1049 1050 prod_bd->rx_bd_haddr = cons_bd->rx_bd_haddr; 1051 } 1052 1053 static inline u16 bnxt_find_next_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx) 1054 { 1055 u16 next, max = rxr->rx_agg_bmap_size; 1056 1057 next = find_next_zero_bit(rxr->rx_agg_bmap, max, idx); 1058 if (next >= max) 1059 next = find_first_zero_bit(rxr->rx_agg_bmap, max); 1060 return next; 1061 } 1062 1063 static int bnxt_alloc_rx_netmem(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 1064 u16 prod, gfp_t gfp) 1065 { 1066 struct rx_bd *rxbd = 1067 &rxr->rx_agg_desc_ring[RX_AGG_RING(bp, prod)][RX_IDX(prod)]; 1068 struct bnxt_sw_rx_agg_bd *rx_agg_buf; 1069 u16 sw_prod = rxr->rx_sw_agg_prod; 1070 unsigned int offset = 0; 1071 dma_addr_t mapping; 1072 netmem_ref netmem; 1073 1074 netmem = __bnxt_alloc_rx_netmem(bp, &mapping, rxr, &offset, gfp); 1075 if (!netmem) 1076 return -ENOMEM; 1077 1078 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) 1079 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod); 1080 1081 __set_bit(sw_prod, rxr->rx_agg_bmap); 1082 rx_agg_buf = &rxr->rx_agg_ring[sw_prod]; 1083 rxr->rx_sw_agg_prod = RING_RX_AGG(bp, NEXT_RX_AGG(sw_prod)); 1084 1085 rx_agg_buf->netmem = netmem; 1086 rx_agg_buf->offset = offset; 1087 rx_agg_buf->mapping = mapping; 1088 rxbd->rx_bd_haddr = cpu_to_le64(mapping); 1089 rxbd->rx_bd_opaque = sw_prod; 1090 return 0; 1091 } 1092 1093 static struct rx_agg_cmp *bnxt_get_agg(struct bnxt *bp, 1094 struct bnxt_cp_ring_info *cpr, 1095 u16 cp_cons, u16 curr) 1096 { 1097 struct rx_agg_cmp *agg; 1098 1099 cp_cons = RING_CMP(ADV_RAW_CMP(cp_cons, curr)); 1100 agg = (struct rx_agg_cmp *) 1101 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 1102 return agg; 1103 } 1104 1105 static struct rx_agg_cmp *bnxt_get_tpa_agg_p5(struct bnxt *bp, 1106 struct bnxt_rx_ring_info *rxr, 1107 u16 agg_id, u16 curr) 1108 { 1109 struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[agg_id]; 1110 1111 return &tpa_info->agg_arr[curr]; 1112 } 1113 1114 static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx, 1115 u16 start, u32 agg_bufs, bool tpa) 1116 { 1117 struct bnxt_napi *bnapi = cpr->bnapi; 1118 struct bnxt *bp = bnapi->bp; 1119 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1120 u16 prod = rxr->rx_agg_prod; 1121 u16 sw_prod = rxr->rx_sw_agg_prod; 1122 bool p5_tpa = false; 1123 u32 i; 1124 1125 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && tpa) 1126 p5_tpa = true; 1127 1128 for (i = 0; i < agg_bufs; i++) { 1129 struct bnxt_sw_rx_agg_bd *cons_rx_buf, *prod_rx_buf; 1130 struct rx_agg_cmp *agg; 1131 struct rx_bd *prod_bd; 1132 netmem_ref netmem; 1133 u16 cons; 1134 1135 if (p5_tpa) 1136 agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, start + i); 1137 else 1138 agg = bnxt_get_agg(bp, cpr, idx, start + i); 1139 cons = agg->rx_agg_cmp_opaque; 1140 __clear_bit(cons, rxr->rx_agg_bmap); 1141 1142 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) 1143 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod); 1144 1145 __set_bit(sw_prod, rxr->rx_agg_bmap); 1146 prod_rx_buf = &rxr->rx_agg_ring[sw_prod]; 1147 cons_rx_buf = &rxr->rx_agg_ring[cons]; 1148 1149 /* It is possible for sw_prod to be equal to cons, so 1150 * set cons_rx_buf->netmem to 0 first. 1151 */ 1152 netmem = cons_rx_buf->netmem; 1153 cons_rx_buf->netmem = 0; 1154 prod_rx_buf->netmem = netmem; 1155 prod_rx_buf->offset = cons_rx_buf->offset; 1156 1157 prod_rx_buf->mapping = cons_rx_buf->mapping; 1158 1159 prod_bd = &rxr->rx_agg_desc_ring[RX_AGG_RING(bp, prod)][RX_IDX(prod)]; 1160 1161 prod_bd->rx_bd_haddr = cpu_to_le64(cons_rx_buf->mapping); 1162 prod_bd->rx_bd_opaque = sw_prod; 1163 1164 prod = NEXT_RX_AGG(prod); 1165 sw_prod = RING_RX_AGG(bp, NEXT_RX_AGG(sw_prod)); 1166 } 1167 rxr->rx_agg_prod = prod; 1168 rxr->rx_sw_agg_prod = sw_prod; 1169 } 1170 1171 static struct sk_buff *bnxt_rx_multi_page_skb(struct bnxt *bp, 1172 struct bnxt_rx_ring_info *rxr, 1173 u16 cons, void *data, u8 *data_ptr, 1174 dma_addr_t dma_addr, 1175 unsigned int offset_and_len) 1176 { 1177 unsigned int len = offset_and_len & 0xffff; 1178 struct page *page = data; 1179 u16 prod = rxr->rx_prod; 1180 struct sk_buff *skb; 1181 void *frag_start; 1182 int err; 1183 1184 frag_start = page_address(page) + rxr->rx_buf_ring[cons].offset; 1185 1186 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); 1187 if (unlikely(err)) { 1188 bnxt_reuse_rx_data(rxr, cons, data); 1189 return NULL; 1190 } 1191 dma_addr -= bp->rx_dma_offset; 1192 dma_sync_single_for_cpu(&bp->pdev->dev, dma_addr, rxr->rx_page_size, 1193 bp->rx_dir); 1194 skb = napi_build_skb(frag_start, rxr->rx_page_size); 1195 if (!skb) { 1196 page_pool_recycle_direct(rxr->page_pool, page); 1197 return NULL; 1198 } 1199 skb_mark_for_recycle(skb); 1200 skb_reserve(skb, data_ptr - (u8 *)frag_start); 1201 __skb_put(skb, len); 1202 1203 return skb; 1204 } 1205 1206 static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp, 1207 struct bnxt_rx_ring_info *rxr, 1208 u16 cons, void *data, u8 *data_ptr, 1209 dma_addr_t dma_addr, 1210 unsigned int offset_and_len) 1211 { 1212 unsigned int payload = offset_and_len >> 16; 1213 unsigned int len = offset_and_len & 0xffff; 1214 skb_frag_t *frag; 1215 struct page *page = data; 1216 u16 prod = rxr->rx_prod; 1217 struct sk_buff *skb; 1218 int off, err; 1219 1220 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); 1221 if (unlikely(err)) { 1222 bnxt_reuse_rx_data(rxr, cons, data); 1223 return NULL; 1224 } 1225 dma_addr -= bp->rx_dma_offset; 1226 dma_sync_single_for_cpu(&bp->pdev->dev, dma_addr, rxr->rx_page_size, 1227 bp->rx_dir); 1228 1229 if (unlikely(!payload)) 1230 payload = eth_get_headlen(bp->dev, data_ptr, len); 1231 1232 skb = napi_alloc_skb(&rxr->bnapi->napi, payload); 1233 if (!skb) { 1234 page_pool_recycle_direct(rxr->page_pool, page); 1235 return NULL; 1236 } 1237 1238 skb_mark_for_recycle(skb); 1239 off = (void *)data_ptr - page_address(page); 1240 skb_add_rx_frag(skb, 0, page, off, len, rxr->rx_page_size); 1241 memcpy(skb->data - NET_IP_ALIGN, data_ptr - NET_IP_ALIGN, 1242 payload + NET_IP_ALIGN); 1243 1244 frag = &skb_shinfo(skb)->frags[0]; 1245 skb_frag_size_sub(frag, payload); 1246 skb_frag_off_add(frag, payload); 1247 skb->data_len -= payload; 1248 skb->tail += payload; 1249 1250 return skb; 1251 } 1252 1253 static struct sk_buff *bnxt_rx_skb(struct bnxt *bp, 1254 struct bnxt_rx_ring_info *rxr, u16 cons, 1255 void *data, u8 *data_ptr, 1256 dma_addr_t dma_addr, 1257 unsigned int offset_and_len) 1258 { 1259 u16 prod = rxr->rx_prod; 1260 struct sk_buff *skb; 1261 int err; 1262 1263 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); 1264 if (unlikely(err)) { 1265 bnxt_reuse_rx_data(rxr, cons, data); 1266 return NULL; 1267 } 1268 1269 skb = napi_build_skb(data, bp->rx_buf_size); 1270 dma_sync_single_for_cpu(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size, 1271 bp->rx_dir); 1272 if (!skb) { 1273 page_pool_free_va(rxr->head_pool, data, true); 1274 return NULL; 1275 } 1276 1277 skb_mark_for_recycle(skb); 1278 skb_reserve(skb, bp->rx_offset); 1279 skb_put(skb, offset_and_len & 0xffff); 1280 return skb; 1281 } 1282 1283 static u32 __bnxt_rx_agg_netmems(struct bnxt *bp, 1284 struct bnxt_cp_ring_info *cpr, 1285 u16 idx, u32 agg_bufs, bool tpa, 1286 struct sk_buff *skb, 1287 struct xdp_buff *xdp) 1288 { 1289 struct bnxt_napi *bnapi = cpr->bnapi; 1290 struct skb_shared_info *shinfo; 1291 struct bnxt_rx_ring_info *rxr; 1292 u32 i, total_frag_len = 0; 1293 bool p5_tpa = false; 1294 u16 prod; 1295 1296 rxr = bnapi->rx_ring; 1297 prod = rxr->rx_agg_prod; 1298 1299 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && tpa) 1300 p5_tpa = true; 1301 1302 if (skb) 1303 shinfo = skb_shinfo(skb); 1304 else 1305 shinfo = xdp_get_shared_info_from_buff(xdp); 1306 1307 for (i = 0; i < agg_bufs; i++) { 1308 struct bnxt_sw_rx_agg_bd *cons_rx_buf; 1309 struct rx_agg_cmp *agg; 1310 u16 cons, frag_len; 1311 netmem_ref netmem; 1312 1313 if (p5_tpa) 1314 agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, i); 1315 else 1316 agg = bnxt_get_agg(bp, cpr, idx, i); 1317 cons = agg->rx_agg_cmp_opaque; 1318 frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) & 1319 RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT; 1320 1321 cons_rx_buf = &rxr->rx_agg_ring[cons]; 1322 if (skb) { 1323 skb_add_rx_frag_netmem(skb, i, cons_rx_buf->netmem, 1324 cons_rx_buf->offset, 1325 frag_len, rxr->rx_page_size); 1326 } else { 1327 skb_frag_t *frag = &shinfo->frags[i]; 1328 1329 skb_frag_fill_netmem_desc(frag, cons_rx_buf->netmem, 1330 cons_rx_buf->offset, 1331 frag_len); 1332 shinfo->nr_frags = i + 1; 1333 } 1334 __clear_bit(cons, rxr->rx_agg_bmap); 1335 1336 /* It is possible for bnxt_alloc_rx_netmem() to allocate 1337 * a sw_prod index that equals the cons index, so we 1338 * need to clear the cons entry now. 1339 */ 1340 netmem = cons_rx_buf->netmem; 1341 cons_rx_buf->netmem = 0; 1342 1343 if (xdp && netmem_is_pfmemalloc(netmem)) 1344 xdp_buff_set_frag_pfmemalloc(xdp); 1345 1346 if (bnxt_alloc_rx_netmem(bp, rxr, prod, GFP_ATOMIC) != 0) { 1347 if (skb) { 1348 skb->len -= frag_len; 1349 skb->data_len -= frag_len; 1350 skb->truesize -= rxr->rx_page_size; 1351 } 1352 1353 --shinfo->nr_frags; 1354 cons_rx_buf->netmem = netmem; 1355 1356 /* Update prod since possibly some netmems have been 1357 * allocated already. 1358 */ 1359 rxr->rx_agg_prod = prod; 1360 bnxt_reuse_rx_agg_bufs(cpr, idx, i, agg_bufs - i, tpa); 1361 return 0; 1362 } 1363 1364 page_pool_dma_sync_netmem_for_cpu(rxr->page_pool, netmem, 0, 1365 rxr->rx_page_size); 1366 1367 total_frag_len += frag_len; 1368 prod = NEXT_RX_AGG(prod); 1369 } 1370 rxr->rx_agg_prod = prod; 1371 return total_frag_len; 1372 } 1373 1374 static struct sk_buff *bnxt_rx_agg_netmems_skb(struct bnxt *bp, 1375 struct bnxt_cp_ring_info *cpr, 1376 struct sk_buff *skb, u16 idx, 1377 u32 agg_bufs, bool tpa) 1378 { 1379 u32 total_frag_len = 0; 1380 1381 total_frag_len = __bnxt_rx_agg_netmems(bp, cpr, idx, agg_bufs, tpa, 1382 skb, NULL); 1383 if (!total_frag_len) { 1384 skb_mark_for_recycle(skb); 1385 dev_kfree_skb(skb); 1386 return NULL; 1387 } 1388 1389 return skb; 1390 } 1391 1392 static u32 bnxt_rx_agg_netmems_xdp(struct bnxt *bp, 1393 struct bnxt_cp_ring_info *cpr, 1394 struct xdp_buff *xdp, u16 idx, 1395 u32 agg_bufs, bool tpa) 1396 { 1397 struct skb_shared_info *shinfo = xdp_get_shared_info_from_buff(xdp); 1398 u32 total_frag_len = 0; 1399 1400 if (!xdp_buff_has_frags(xdp)) 1401 shinfo->nr_frags = 0; 1402 1403 total_frag_len = __bnxt_rx_agg_netmems(bp, cpr, idx, agg_bufs, tpa, 1404 NULL, xdp); 1405 if (total_frag_len) { 1406 xdp_buff_set_frags_flag(xdp); 1407 shinfo->nr_frags = agg_bufs; 1408 shinfo->xdp_frags_size = total_frag_len; 1409 } 1410 return total_frag_len; 1411 } 1412 1413 static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 1414 u8 agg_bufs, u32 *raw_cons) 1415 { 1416 u16 last; 1417 struct rx_agg_cmp *agg; 1418 1419 *raw_cons = ADV_RAW_CMP(*raw_cons, agg_bufs); 1420 last = RING_CMP(*raw_cons); 1421 agg = (struct rx_agg_cmp *) 1422 &cpr->cp_desc_ring[CP_RING(last)][CP_IDX(last)]; 1423 return RX_AGG_CMP_VALID(agg, *raw_cons); 1424 } 1425 1426 static struct sk_buff *bnxt_copy_data(struct bnxt_napi *bnapi, u8 *data, 1427 unsigned int len, 1428 dma_addr_t mapping) 1429 { 1430 struct bnxt *bp = bnapi->bp; 1431 struct pci_dev *pdev = bp->pdev; 1432 struct sk_buff *skb; 1433 1434 skb = napi_alloc_skb(&bnapi->napi, len); 1435 if (!skb) 1436 return NULL; 1437 1438 dma_sync_single_for_cpu(&pdev->dev, mapping, bp->rx_copybreak, 1439 bp->rx_dir); 1440 1441 memcpy(skb->data - NET_IP_ALIGN, data - NET_IP_ALIGN, 1442 len + NET_IP_ALIGN); 1443 1444 dma_sync_single_for_device(&pdev->dev, mapping, bp->rx_copybreak, 1445 bp->rx_dir); 1446 1447 skb_put(skb, len); 1448 1449 return skb; 1450 } 1451 1452 static struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data, 1453 unsigned int len, 1454 dma_addr_t mapping) 1455 { 1456 return bnxt_copy_data(bnapi, data, len, mapping); 1457 } 1458 1459 static struct sk_buff *bnxt_copy_xdp(struct bnxt_napi *bnapi, 1460 struct xdp_buff *xdp, 1461 unsigned int len, 1462 dma_addr_t mapping) 1463 { 1464 unsigned int metasize = 0; 1465 u8 *data = xdp->data; 1466 struct sk_buff *skb; 1467 1468 len = xdp->data_end - xdp->data_meta; 1469 metasize = xdp->data - xdp->data_meta; 1470 data = xdp->data_meta; 1471 1472 skb = bnxt_copy_data(bnapi, data, len, mapping); 1473 if (!skb) 1474 return skb; 1475 1476 if (metasize) { 1477 skb_metadata_set(skb, metasize); 1478 __skb_pull(skb, metasize); 1479 } 1480 1481 return skb; 1482 } 1483 1484 static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 1485 u32 *raw_cons, void *cmp) 1486 { 1487 struct rx_cmp *rxcmp = cmp; 1488 u32 tmp_raw_cons = *raw_cons; 1489 u8 cmp_type, agg_bufs = 0; 1490 1491 cmp_type = RX_CMP_TYPE(rxcmp); 1492 1493 if (cmp_type == CMP_TYPE_RX_L2_CMP) { 1494 agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) & 1495 RX_CMP_AGG_BUFS) >> 1496 RX_CMP_AGG_BUFS_SHIFT; 1497 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { 1498 struct rx_tpa_end_cmp *tpa_end = cmp; 1499 1500 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 1501 return 0; 1502 1503 agg_bufs = TPA_END_AGG_BUFS(tpa_end); 1504 } 1505 1506 if (agg_bufs) { 1507 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons)) 1508 return -EBUSY; 1509 } 1510 *raw_cons = tmp_raw_cons; 1511 return 0; 1512 } 1513 1514 static u16 bnxt_alloc_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id) 1515 { 1516 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; 1517 u16 idx = agg_id & MAX_TPA_P5_MASK; 1518 1519 if (test_bit(idx, map->agg_idx_bmap)) { 1520 idx = find_first_zero_bit(map->agg_idx_bmap, MAX_TPA_P5); 1521 if (idx >= MAX_TPA_P5) 1522 return INVALID_HW_RING_ID; 1523 } 1524 __set_bit(idx, map->agg_idx_bmap); 1525 map->agg_id_tbl[agg_id] = idx; 1526 return idx; 1527 } 1528 1529 static void bnxt_free_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx) 1530 { 1531 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; 1532 1533 __clear_bit(idx, map->agg_idx_bmap); 1534 } 1535 1536 static u16 bnxt_lookup_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id) 1537 { 1538 struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; 1539 1540 return map->agg_id_tbl[agg_id]; 1541 } 1542 1543 static void bnxt_tpa_metadata(struct bnxt_tpa_info *tpa_info, 1544 struct rx_tpa_start_cmp *tpa_start, 1545 struct rx_tpa_start_cmp_ext *tpa_start1) 1546 { 1547 tpa_info->cfa_code_valid = 1; 1548 tpa_info->cfa_code = TPA_START_CFA_CODE(tpa_start1); 1549 tpa_info->vlan_valid = 0; 1550 if (tpa_info->flags2 & RX_CMP_FLAGS2_META_FORMAT_VLAN) { 1551 tpa_info->vlan_valid = 1; 1552 tpa_info->metadata = 1553 le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata); 1554 } 1555 } 1556 1557 static void bnxt_tpa_metadata_v2(struct bnxt_tpa_info *tpa_info, 1558 struct rx_tpa_start_cmp *tpa_start, 1559 struct rx_tpa_start_cmp_ext *tpa_start1) 1560 { 1561 tpa_info->vlan_valid = 0; 1562 if (TPA_START_VLAN_VALID(tpa_start)) { 1563 u32 tpid_sel = TPA_START_VLAN_TPID_SEL(tpa_start); 1564 u32 vlan_proto = ETH_P_8021Q; 1565 1566 tpa_info->vlan_valid = 1; 1567 if (tpid_sel == RX_TPA_START_METADATA1_TPID_8021AD) 1568 vlan_proto = ETH_P_8021AD; 1569 tpa_info->metadata = vlan_proto << 16 | 1570 TPA_START_METADATA0_TCI(tpa_start1); 1571 } 1572 } 1573 1574 static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 1575 u8 cmp_type, struct rx_tpa_start_cmp *tpa_start, 1576 struct rx_tpa_start_cmp_ext *tpa_start1) 1577 { 1578 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf; 1579 struct bnxt_tpa_info *tpa_info; 1580 u16 cons, prod, agg_id; 1581 struct rx_bd *prod_bd; 1582 dma_addr_t mapping; 1583 1584 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 1585 agg_id = TPA_START_AGG_ID_P5(tpa_start); 1586 agg_id = bnxt_alloc_agg_idx(rxr, agg_id); 1587 if (unlikely(agg_id == INVALID_HW_RING_ID)) { 1588 netdev_warn(bp->dev, "Unable to allocate agg ID for ring %d, agg 0x%x\n", 1589 rxr->bnapi->index, 1590 TPA_START_AGG_ID_P5(tpa_start)); 1591 bnxt_sched_reset_rxr(bp, rxr); 1592 return; 1593 } 1594 } else { 1595 agg_id = TPA_START_AGG_ID(tpa_start); 1596 } 1597 cons = tpa_start->rx_tpa_start_cmp_opaque; 1598 prod = rxr->rx_prod; 1599 cons_rx_buf = &rxr->rx_buf_ring[cons]; 1600 prod_rx_buf = &rxr->rx_buf_ring[RING_RX(bp, prod)]; 1601 tpa_info = &rxr->rx_tpa[agg_id]; 1602 1603 if (unlikely(cons != rxr->rx_next_cons || 1604 TPA_START_ERROR(tpa_start))) { 1605 netdev_warn(bp->dev, "TPA cons %x, expected cons %x, error code %x\n", 1606 cons, rxr->rx_next_cons, 1607 TPA_START_ERROR_CODE(tpa_start1)); 1608 bnxt_sched_reset_rxr(bp, rxr); 1609 return; 1610 } 1611 prod_rx_buf->data = tpa_info->data; 1612 prod_rx_buf->data_ptr = tpa_info->data_ptr; 1613 1614 mapping = tpa_info->mapping; 1615 prod_rx_buf->mapping = mapping; 1616 1617 prod_bd = &rxr->rx_desc_ring[RX_RING(bp, prod)][RX_IDX(prod)]; 1618 1619 prod_bd->rx_bd_haddr = cpu_to_le64(mapping); 1620 1621 tpa_info->data = cons_rx_buf->data; 1622 tpa_info->data_ptr = cons_rx_buf->data_ptr; 1623 cons_rx_buf->data = NULL; 1624 tpa_info->mapping = cons_rx_buf->mapping; 1625 1626 tpa_info->len = 1627 le32_to_cpu(tpa_start->rx_tpa_start_cmp_len_flags_type) >> 1628 RX_TPA_START_CMP_LEN_SHIFT; 1629 if (likely(TPA_START_HASH_VALID(tpa_start))) { 1630 tpa_info->hash_type = PKT_HASH_TYPE_L4; 1631 tpa_info->gso_type = SKB_GSO_TCPV4; 1632 if (TPA_START_IS_IPV6(tpa_start1)) 1633 tpa_info->gso_type = SKB_GSO_TCPV6; 1634 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */ 1635 else if (!BNXT_CHIP_P4_PLUS(bp) && 1636 TPA_START_HASH_TYPE(tpa_start) == 3) 1637 tpa_info->gso_type = SKB_GSO_TCPV6; 1638 tpa_info->rss_hash = 1639 le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash); 1640 } else { 1641 tpa_info->hash_type = PKT_HASH_TYPE_NONE; 1642 tpa_info->gso_type = 0; 1643 netif_warn(bp, rx_err, bp->dev, "TPA packet without valid hash\n"); 1644 } 1645 tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2); 1646 tpa_info->hdr_info = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_hdr_info); 1647 if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) 1648 bnxt_tpa_metadata(tpa_info, tpa_start, tpa_start1); 1649 else 1650 bnxt_tpa_metadata_v2(tpa_info, tpa_start, tpa_start1); 1651 tpa_info->agg_count = 0; 1652 1653 rxr->rx_prod = NEXT_RX(prod); 1654 cons = RING_RX(bp, NEXT_RX(cons)); 1655 rxr->rx_next_cons = RING_RX(bp, NEXT_RX(cons)); 1656 cons_rx_buf = &rxr->rx_buf_ring[cons]; 1657 1658 bnxt_reuse_rx_data(rxr, cons, cons_rx_buf->data); 1659 rxr->rx_prod = NEXT_RX(rxr->rx_prod); 1660 cons_rx_buf->data = NULL; 1661 } 1662 1663 static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 idx, u32 agg_bufs) 1664 { 1665 if (agg_bufs) 1666 bnxt_reuse_rx_agg_bufs(cpr, idx, 0, agg_bufs, true); 1667 } 1668 1669 #ifdef CONFIG_INET 1670 static void bnxt_gro_tunnel(struct sk_buff *skb, __be16 ip_proto) 1671 { 1672 struct udphdr *uh = NULL; 1673 1674 if (ip_proto == htons(ETH_P_IP)) { 1675 struct iphdr *iph = (struct iphdr *)skb->data; 1676 1677 if (iph->protocol == IPPROTO_UDP) 1678 uh = (struct udphdr *)(iph + 1); 1679 } else { 1680 struct ipv6hdr *iph = (struct ipv6hdr *)skb->data; 1681 1682 if (iph->nexthdr == IPPROTO_UDP) 1683 uh = (struct udphdr *)(iph + 1); 1684 } 1685 if (uh) { 1686 if (uh->check) 1687 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL_CSUM; 1688 else 1689 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL; 1690 } 1691 } 1692 #endif 1693 1694 static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info, 1695 int payload_off, int tcp_ts, 1696 struct sk_buff *skb) 1697 { 1698 #ifdef CONFIG_INET 1699 struct tcphdr *th; 1700 int len, nw_off; 1701 u16 outer_ip_off, inner_ip_off, inner_mac_off; 1702 u32 hdr_info = tpa_info->hdr_info; 1703 bool loopback = false; 1704 1705 inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info); 1706 inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info); 1707 outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info); 1708 1709 /* If the packet is an internal loopback packet, the offsets will 1710 * have an extra 4 bytes. 1711 */ 1712 if (inner_mac_off == 4) { 1713 loopback = true; 1714 } else if (inner_mac_off > 4) { 1715 __be16 proto = *((__be16 *)(skb->data + inner_ip_off - 1716 ETH_HLEN - 2)); 1717 1718 /* We only support inner iPv4/ipv6. If we don't see the 1719 * correct protocol ID, it must be a loopback packet where 1720 * the offsets are off by 4. 1721 */ 1722 if (proto != htons(ETH_P_IP) && proto != htons(ETH_P_IPV6)) 1723 loopback = true; 1724 } 1725 if (loopback) { 1726 /* internal loopback packet, subtract all offsets by 4 */ 1727 inner_ip_off -= 4; 1728 inner_mac_off -= 4; 1729 outer_ip_off -= 4; 1730 } 1731 1732 nw_off = inner_ip_off - ETH_HLEN; 1733 skb_set_network_header(skb, nw_off); 1734 if (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) { 1735 struct ipv6hdr *iph = ipv6_hdr(skb); 1736 1737 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr)); 1738 len = skb->len - skb_transport_offset(skb); 1739 th = tcp_hdr(skb); 1740 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0); 1741 } else { 1742 struct iphdr *iph = ip_hdr(skb); 1743 1744 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr)); 1745 len = skb->len - skb_transport_offset(skb); 1746 th = tcp_hdr(skb); 1747 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0); 1748 } 1749 1750 if (inner_mac_off) { /* tunnel */ 1751 __be16 proto = *((__be16 *)(skb->data + outer_ip_off - 1752 ETH_HLEN - 2)); 1753 1754 bnxt_gro_tunnel(skb, proto); 1755 } 1756 #endif 1757 return skb; 1758 } 1759 1760 static struct sk_buff *bnxt_gro_func_5750x(struct bnxt_tpa_info *tpa_info, 1761 int payload_off, int tcp_ts, 1762 struct sk_buff *skb) 1763 { 1764 #ifdef CONFIG_INET 1765 u16 outer_ip_off, inner_ip_off, inner_mac_off; 1766 u32 hdr_info = tpa_info->hdr_info; 1767 int iphdr_len, nw_off; 1768 1769 inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info); 1770 inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info); 1771 outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info); 1772 1773 nw_off = inner_ip_off - ETH_HLEN; 1774 skb_set_network_header(skb, nw_off); 1775 iphdr_len = (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) ? 1776 sizeof(struct ipv6hdr) : sizeof(struct iphdr); 1777 skb_set_transport_header(skb, nw_off + iphdr_len); 1778 1779 if (inner_mac_off) { /* tunnel */ 1780 __be16 proto = *((__be16 *)(skb->data + outer_ip_off - 1781 ETH_HLEN - 2)); 1782 1783 bnxt_gro_tunnel(skb, proto); 1784 } 1785 #endif 1786 return skb; 1787 } 1788 1789 #define BNXT_IPV4_HDR_SIZE (sizeof(struct iphdr) + sizeof(struct tcphdr)) 1790 #define BNXT_IPV6_HDR_SIZE (sizeof(struct ipv6hdr) + sizeof(struct tcphdr)) 1791 1792 static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info, 1793 int payload_off, int tcp_ts, 1794 struct sk_buff *skb) 1795 { 1796 #ifdef CONFIG_INET 1797 struct tcphdr *th; 1798 int len, nw_off, tcp_opt_len = 0; 1799 1800 if (tcp_ts) 1801 tcp_opt_len = 12; 1802 1803 if (tpa_info->gso_type == SKB_GSO_TCPV4) { 1804 struct iphdr *iph; 1805 1806 nw_off = payload_off - BNXT_IPV4_HDR_SIZE - tcp_opt_len - 1807 ETH_HLEN; 1808 skb_set_network_header(skb, nw_off); 1809 iph = ip_hdr(skb); 1810 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr)); 1811 len = skb->len - skb_transport_offset(skb); 1812 th = tcp_hdr(skb); 1813 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0); 1814 } else if (tpa_info->gso_type == SKB_GSO_TCPV6) { 1815 struct ipv6hdr *iph; 1816 1817 nw_off = payload_off - BNXT_IPV6_HDR_SIZE - tcp_opt_len - 1818 ETH_HLEN; 1819 skb_set_network_header(skb, nw_off); 1820 iph = ipv6_hdr(skb); 1821 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr)); 1822 len = skb->len - skb_transport_offset(skb); 1823 th = tcp_hdr(skb); 1824 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0); 1825 } else { 1826 dev_kfree_skb_any(skb); 1827 return NULL; 1828 } 1829 1830 if (nw_off) /* tunnel */ 1831 bnxt_gro_tunnel(skb, skb->protocol); 1832 #endif 1833 return skb; 1834 } 1835 1836 static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp, 1837 struct bnxt_tpa_info *tpa_info, 1838 struct rx_tpa_end_cmp *tpa_end, 1839 struct rx_tpa_end_cmp_ext *tpa_end1, 1840 struct sk_buff *skb, 1841 struct bnxt_rx_sw_stats *rx_stats) 1842 { 1843 #ifdef CONFIG_INET 1844 int payload_off; 1845 u16 segs; 1846 1847 segs = TPA_END_TPA_SEGS(tpa_end); 1848 if (segs == 1) 1849 return skb; 1850 1851 rx_stats->rx_hw_gro_packets++; 1852 rx_stats->rx_hw_gro_wire_packets += segs; 1853 1854 NAPI_GRO_CB(skb)->count = segs; 1855 skb_shinfo(skb)->gso_size = 1856 le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len); 1857 skb_shinfo(skb)->gso_type = tpa_info->gso_type; 1858 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 1859 payload_off = TPA_END_PAYLOAD_OFF_P5(tpa_end1); 1860 else 1861 payload_off = TPA_END_PAYLOAD_OFF(tpa_end); 1862 skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb); 1863 if (likely(skb)) 1864 tcp_gro_complete(skb); 1865 #endif 1866 return skb; 1867 } 1868 1869 /* Given the cfa_code of a received packet determine which 1870 * netdev (vf-rep or PF) the packet is destined to. 1871 */ 1872 static struct net_device *bnxt_get_pkt_dev(struct bnxt *bp, u16 cfa_code) 1873 { 1874 struct net_device *dev = bnxt_get_vf_rep(bp, cfa_code); 1875 1876 /* if vf-rep dev is NULL, it must belong to the PF */ 1877 return dev ? dev : bp->dev; 1878 } 1879 1880 static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp, 1881 struct bnxt_cp_ring_info *cpr, 1882 u32 *raw_cons, 1883 struct rx_tpa_end_cmp *tpa_end, 1884 struct rx_tpa_end_cmp_ext *tpa_end1, 1885 u8 *event) 1886 { 1887 struct bnxt_napi *bnapi = cpr->bnapi; 1888 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1889 struct net_device *dev = bp->dev; 1890 u8 *data_ptr, agg_bufs; 1891 unsigned int len; 1892 struct bnxt_tpa_info *tpa_info; 1893 dma_addr_t mapping; 1894 struct sk_buff *skb; 1895 u16 idx = 0, agg_id; 1896 void *data; 1897 bool gro; 1898 1899 if (unlikely(bnapi->in_reset)) { 1900 int rc = bnxt_discard_rx(bp, cpr, raw_cons, tpa_end); 1901 1902 if (rc < 0) 1903 return ERR_PTR(-EBUSY); 1904 return NULL; 1905 } 1906 1907 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 1908 agg_id = TPA_END_AGG_ID_P5(tpa_end); 1909 agg_id = bnxt_lookup_agg_idx(rxr, agg_id); 1910 agg_bufs = TPA_END_AGG_BUFS_P5(tpa_end1); 1911 tpa_info = &rxr->rx_tpa[agg_id]; 1912 if (unlikely(agg_bufs != tpa_info->agg_count)) { 1913 netdev_warn(bp->dev, "TPA end agg_buf %d != expected agg_bufs %d\n", 1914 agg_bufs, tpa_info->agg_count); 1915 agg_bufs = tpa_info->agg_count; 1916 } 1917 tpa_info->agg_count = 0; 1918 *event |= BNXT_AGG_EVENT; 1919 bnxt_free_agg_idx(rxr, agg_id); 1920 idx = agg_id; 1921 gro = !!(bp->flags & BNXT_FLAG_GRO); 1922 } else { 1923 agg_id = TPA_END_AGG_ID(tpa_end); 1924 agg_bufs = TPA_END_AGG_BUFS(tpa_end); 1925 tpa_info = &rxr->rx_tpa[agg_id]; 1926 idx = RING_CMP(*raw_cons); 1927 if (agg_bufs) { 1928 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons)) 1929 return ERR_PTR(-EBUSY); 1930 1931 *event |= BNXT_AGG_EVENT; 1932 idx = NEXT_CMP(idx); 1933 } 1934 gro = !!TPA_END_GRO(tpa_end); 1935 } 1936 data = tpa_info->data; 1937 data_ptr = tpa_info->data_ptr; 1938 prefetch(data_ptr); 1939 len = tpa_info->len; 1940 mapping = tpa_info->mapping; 1941 1942 if (unlikely(agg_bufs > MAX_SKB_FRAGS || TPA_END_ERRORS(tpa_end1))) { 1943 bnxt_abort_tpa(cpr, idx, agg_bufs); 1944 if (agg_bufs > MAX_SKB_FRAGS) 1945 netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n", 1946 agg_bufs, (int)MAX_SKB_FRAGS); 1947 return NULL; 1948 } 1949 1950 if (len <= bp->rx_copybreak) { 1951 skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping); 1952 if (!skb) { 1953 bnxt_abort_tpa(cpr, idx, agg_bufs); 1954 cpr->sw_stats->rx.rx_oom_discards += 1; 1955 return NULL; 1956 } 1957 } else { 1958 u8 *new_data; 1959 dma_addr_t new_mapping; 1960 1961 new_data = __bnxt_alloc_rx_frag(bp, &new_mapping, rxr, 1962 GFP_ATOMIC); 1963 if (!new_data) { 1964 bnxt_abort_tpa(cpr, idx, agg_bufs); 1965 cpr->sw_stats->rx.rx_oom_discards += 1; 1966 return NULL; 1967 } 1968 1969 tpa_info->data = new_data; 1970 tpa_info->data_ptr = new_data + bp->rx_offset; 1971 tpa_info->mapping = new_mapping; 1972 1973 skb = napi_build_skb(data, bp->rx_buf_size); 1974 dma_sync_single_for_cpu(&bp->pdev->dev, mapping, 1975 bp->rx_buf_use_size, bp->rx_dir); 1976 1977 if (!skb) { 1978 page_pool_free_va(rxr->head_pool, data, true); 1979 bnxt_abort_tpa(cpr, idx, agg_bufs); 1980 cpr->sw_stats->rx.rx_oom_discards += 1; 1981 return NULL; 1982 } 1983 skb_mark_for_recycle(skb); 1984 skb_reserve(skb, bp->rx_offset); 1985 skb_put(skb, len); 1986 } 1987 1988 if (agg_bufs) { 1989 skb = bnxt_rx_agg_netmems_skb(bp, cpr, skb, idx, agg_bufs, 1990 true); 1991 if (!skb) { 1992 /* Page reuse already handled by bnxt_rx_pages(). */ 1993 cpr->sw_stats->rx.rx_oom_discards += 1; 1994 return NULL; 1995 } 1996 } 1997 1998 if (tpa_info->cfa_code_valid) 1999 dev = bnxt_get_pkt_dev(bp, tpa_info->cfa_code); 2000 skb->protocol = eth_type_trans(skb, dev); 2001 2002 if (tpa_info->hash_type != PKT_HASH_TYPE_NONE) 2003 skb_set_hash(skb, tpa_info->rss_hash, tpa_info->hash_type); 2004 2005 if (tpa_info->vlan_valid && 2006 (dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX)) { 2007 __be16 vlan_proto = htons(tpa_info->metadata >> 2008 RX_CMP_FLAGS2_METADATA_TPID_SFT); 2009 u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_TCI_MASK; 2010 2011 if (eth_type_vlan(vlan_proto)) { 2012 __vlan_hwaccel_put_tag(skb, vlan_proto, vtag); 2013 } else { 2014 dev_kfree_skb(skb); 2015 return NULL; 2016 } 2017 } 2018 2019 skb_checksum_none_assert(skb); 2020 if (likely(tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_L4_CS_CALC)) { 2021 skb->ip_summed = CHECKSUM_UNNECESSARY; 2022 skb->csum_level = 2023 (tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3; 2024 } 2025 2026 if (gro) 2027 skb = bnxt_gro_skb(bp, tpa_info, tpa_end, tpa_end1, skb, 2028 &cpr->sw_stats->rx); 2029 2030 return skb; 2031 } 2032 2033 static void bnxt_tpa_agg(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 2034 struct rx_agg_cmp *rx_agg) 2035 { 2036 u16 agg_id = TPA_AGG_AGG_ID(rx_agg); 2037 struct bnxt_tpa_info *tpa_info; 2038 2039 agg_id = bnxt_lookup_agg_idx(rxr, agg_id); 2040 tpa_info = &rxr->rx_tpa[agg_id]; 2041 BUG_ON(tpa_info->agg_count >= MAX_SKB_FRAGS); 2042 tpa_info->agg_arr[tpa_info->agg_count++] = *rx_agg; 2043 } 2044 2045 static void bnxt_deliver_skb(struct bnxt *bp, struct bnxt_napi *bnapi, 2046 struct sk_buff *skb) 2047 { 2048 skb_mark_for_recycle(skb); 2049 2050 if (skb->dev != bp->dev) { 2051 /* this packet belongs to a vf-rep */ 2052 bnxt_vf_rep_rx(bp, skb); 2053 return; 2054 } 2055 skb_record_rx_queue(skb, bnapi->index); 2056 napi_gro_receive(&bnapi->napi, skb); 2057 } 2058 2059 static bool bnxt_rx_ts_valid(struct bnxt *bp, u32 flags, 2060 struct rx_cmp_ext *rxcmp1, u32 *cmpl_ts) 2061 { 2062 u32 ts = le32_to_cpu(rxcmp1->rx_cmp_timestamp); 2063 2064 if (BNXT_PTP_RX_TS_VALID(flags)) 2065 goto ts_valid; 2066 if (!bp->ptp_all_rx_tstamp || !ts || !BNXT_ALL_RX_TS_VALID(flags)) 2067 return false; 2068 2069 ts_valid: 2070 *cmpl_ts = ts; 2071 return true; 2072 } 2073 2074 static struct sk_buff *bnxt_rx_vlan(struct sk_buff *skb, u8 cmp_type, 2075 struct rx_cmp *rxcmp, 2076 struct rx_cmp_ext *rxcmp1) 2077 { 2078 __be16 vlan_proto; 2079 u16 vtag; 2080 2081 if (cmp_type == CMP_TYPE_RX_L2_CMP) { 2082 __le32 flags2 = rxcmp1->rx_cmp_flags2; 2083 u32 meta_data; 2084 2085 if (!(flags2 & cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN))) 2086 return skb; 2087 2088 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data); 2089 vtag = meta_data & RX_CMP_FLAGS2_METADATA_TCI_MASK; 2090 vlan_proto = htons(meta_data >> RX_CMP_FLAGS2_METADATA_TPID_SFT); 2091 if (eth_type_vlan(vlan_proto)) 2092 __vlan_hwaccel_put_tag(skb, vlan_proto, vtag); 2093 else 2094 goto vlan_err; 2095 } else if (cmp_type == CMP_TYPE_RX_L2_V3_CMP) { 2096 if (RX_CMP_VLAN_VALID(rxcmp)) { 2097 u32 tpid_sel = RX_CMP_VLAN_TPID_SEL(rxcmp); 2098 2099 if (tpid_sel == RX_CMP_METADATA1_TPID_8021Q) 2100 vlan_proto = htons(ETH_P_8021Q); 2101 else if (tpid_sel == RX_CMP_METADATA1_TPID_8021AD) 2102 vlan_proto = htons(ETH_P_8021AD); 2103 else 2104 goto vlan_err; 2105 vtag = RX_CMP_METADATA0_TCI(rxcmp1); 2106 __vlan_hwaccel_put_tag(skb, vlan_proto, vtag); 2107 } 2108 } 2109 return skb; 2110 vlan_err: 2111 skb_mark_for_recycle(skb); 2112 dev_kfree_skb(skb); 2113 return NULL; 2114 } 2115 2116 /* returns the following: 2117 * 1 - 1 packet successfully received 2118 * 0 - successful TPA_START, packet not completed yet 2119 * -EBUSY - completion ring does not have all the agg buffers yet 2120 * -ENOMEM - packet aborted due to out of memory 2121 * -EIO - packet aborted due to hw error indicated in BD 2122 */ 2123 static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 2124 u32 *raw_cons, u8 *event) 2125 { 2126 struct bnxt_napi *bnapi = cpr->bnapi; 2127 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 2128 struct net_device *dev = bp->dev; 2129 struct rx_cmp *rxcmp; 2130 struct rx_cmp_ext *rxcmp1; 2131 u32 tmp_raw_cons = *raw_cons; 2132 u16 cons, prod, cp_cons = RING_CMP(tmp_raw_cons); 2133 struct skb_shared_info *sinfo; 2134 struct bnxt_xdp_buff bnxt_xdp; 2135 struct bnxt_sw_rx_bd *rx_buf; 2136 unsigned int len; 2137 u8 *data_ptr, agg_bufs, cmp_type; 2138 bool xdp_active = false; 2139 dma_addr_t dma_addr; 2140 struct sk_buff *skb; 2141 u32 flags, misc; 2142 u32 cmpl_ts; 2143 void *data; 2144 int rc = 0; 2145 2146 rxcmp = (struct rx_cmp *) 2147 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 2148 2149 cmp_type = RX_CMP_TYPE(rxcmp); 2150 2151 if (cmp_type == CMP_TYPE_RX_TPA_AGG_CMP) { 2152 bnxt_tpa_agg(bp, rxr, (struct rx_agg_cmp *)rxcmp); 2153 goto next_rx_no_prod_no_len; 2154 } 2155 2156 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons); 2157 cp_cons = RING_CMP(tmp_raw_cons); 2158 rxcmp1 = (struct rx_cmp_ext *) 2159 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 2160 2161 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) 2162 return -EBUSY; 2163 2164 /* The valid test of the entry must be done first before 2165 * reading any further. 2166 */ 2167 dma_rmb(); 2168 prod = rxr->rx_prod; 2169 2170 if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP || 2171 cmp_type == CMP_TYPE_RX_L2_TPA_START_V3_CMP) { 2172 bnxt_tpa_start(bp, rxr, cmp_type, 2173 (struct rx_tpa_start_cmp *)rxcmp, 2174 (struct rx_tpa_start_cmp_ext *)rxcmp1); 2175 2176 *event |= BNXT_RX_EVENT; 2177 goto next_rx_no_prod_no_len; 2178 2179 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { 2180 skb = bnxt_tpa_end(bp, cpr, &tmp_raw_cons, 2181 (struct rx_tpa_end_cmp *)rxcmp, 2182 (struct rx_tpa_end_cmp_ext *)rxcmp1, event); 2183 2184 if (IS_ERR(skb)) 2185 return -EBUSY; 2186 2187 rc = -ENOMEM; 2188 if (likely(skb)) { 2189 bnxt_deliver_skb(bp, bnapi, skb); 2190 rc = 1; 2191 } 2192 *event |= BNXT_RX_EVENT; 2193 goto next_rx_no_prod_no_len; 2194 } 2195 2196 cons = rxcmp->rx_cmp_opaque; 2197 if (unlikely(cons != rxr->rx_next_cons)) { 2198 int rc1 = bnxt_discard_rx(bp, cpr, &tmp_raw_cons, rxcmp); 2199 2200 /* 0xffff is forced error, don't print it */ 2201 if (rxr->rx_next_cons != 0xffff) 2202 netdev_warn(bp->dev, "RX cons %x != expected cons %x\n", 2203 cons, rxr->rx_next_cons); 2204 bnxt_sched_reset_rxr(bp, rxr); 2205 if (rc1) 2206 return rc1; 2207 goto next_rx_no_prod_no_len; 2208 } 2209 rx_buf = &rxr->rx_buf_ring[cons]; 2210 data = rx_buf->data; 2211 data_ptr = rx_buf->data_ptr; 2212 prefetch(data_ptr); 2213 2214 misc = le32_to_cpu(rxcmp->rx_cmp_misc_v1); 2215 agg_bufs = (misc & RX_CMP_AGG_BUFS) >> RX_CMP_AGG_BUFS_SHIFT; 2216 2217 if (agg_bufs) { 2218 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons)) 2219 return -EBUSY; 2220 2221 cp_cons = NEXT_CMP(cp_cons); 2222 *event |= BNXT_AGG_EVENT; 2223 } 2224 *event |= BNXT_RX_EVENT; 2225 2226 rx_buf->data = NULL; 2227 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) { 2228 u32 rx_err = le32_to_cpu(rxcmp1->rx_cmp_cfa_code_errors_v2); 2229 2230 bnxt_reuse_rx_data(rxr, cons, data); 2231 if (agg_bufs) 2232 bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, agg_bufs, 2233 false); 2234 2235 rc = -EIO; 2236 if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) { 2237 bnapi->cp_ring.sw_stats->rx.rx_buf_errors++; 2238 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && 2239 !(bp->fw_cap & BNXT_FW_CAP_RING_MONITOR)) { 2240 netdev_warn_once(bp->dev, "RX buffer error %x\n", 2241 rx_err); 2242 bnxt_sched_reset_rxr(bp, rxr); 2243 } 2244 } 2245 goto next_rx_no_len; 2246 } 2247 2248 flags = le32_to_cpu(rxcmp->rx_cmp_len_flags_type); 2249 len = flags >> RX_CMP_LEN_SHIFT; 2250 dma_addr = rx_buf->mapping; 2251 2252 if (bnxt_xdp_attached(bp, rxr)) { 2253 bnxt_xdp.rxcmp = rxcmp; 2254 bnxt_xdp.rxcmp1 = rxcmp1; 2255 bnxt_xdp.cmp_type = cmp_type; 2256 2257 bnxt_xdp_buff_init(bp, rxr, cons, data_ptr, len, &bnxt_xdp.xdp); 2258 if (agg_bufs) { 2259 u32 frag_len = bnxt_rx_agg_netmems_xdp(bp, cpr, 2260 &bnxt_xdp.xdp, 2261 cp_cons, 2262 agg_bufs, 2263 false); 2264 if (!frag_len) 2265 goto oom_next_rx; 2266 2267 } 2268 xdp_active = true; 2269 } 2270 2271 if (xdp_active) { 2272 if (bnxt_rx_xdp(bp, rxr, cons, &bnxt_xdp.xdp, data, &data_ptr, 2273 &len, event)) { 2274 rc = 1; 2275 goto next_rx; 2276 } 2277 if (xdp_buff_has_frags(&bnxt_xdp.xdp)) { 2278 sinfo = xdp_get_shared_info_from_buff(&bnxt_xdp.xdp); 2279 agg_bufs = sinfo->nr_frags; 2280 } else { 2281 agg_bufs = 0; 2282 } 2283 } 2284 2285 if (len <= bp->rx_copybreak) { 2286 if (!xdp_active) 2287 skb = bnxt_copy_skb(bnapi, data_ptr, len, dma_addr); 2288 else 2289 skb = bnxt_copy_xdp(bnapi, &bnxt_xdp.xdp, len, 2290 dma_addr); 2291 bnxt_reuse_rx_data(rxr, cons, data); 2292 if (!skb) { 2293 if (agg_bufs) { 2294 if (!xdp_active) 2295 bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, 2296 agg_bufs, false); 2297 else 2298 bnxt_xdp_buff_frags_free(rxr, 2299 &bnxt_xdp.xdp); 2300 } 2301 goto oom_next_rx; 2302 } 2303 } else { 2304 u32 payload; 2305 2306 if (rx_buf->data_ptr == data_ptr) 2307 payload = misc & RX_CMP_PAYLOAD_OFFSET; 2308 else 2309 payload = 0; 2310 skb = bp->rx_skb_func(bp, rxr, cons, data, data_ptr, dma_addr, 2311 payload | len); 2312 if (!skb) 2313 goto oom_next_rx; 2314 } 2315 2316 if (agg_bufs) { 2317 if (!xdp_active) { 2318 skb = bnxt_rx_agg_netmems_skb(bp, cpr, skb, cp_cons, 2319 agg_bufs, false); 2320 if (!skb) 2321 goto oom_next_rx; 2322 } else { 2323 skb = bnxt_xdp_build_skb(bp, skb, agg_bufs, 2324 rxr, &bnxt_xdp.xdp); 2325 if (!skb) { 2326 /* we should be able to free the old skb here */ 2327 bnxt_xdp_buff_frags_free(rxr, &bnxt_xdp.xdp); 2328 goto oom_next_rx; 2329 } 2330 } 2331 } 2332 2333 if (RX_CMP_HASH_VALID(rxcmp)) { 2334 enum pkt_hash_types type; 2335 2336 if (cmp_type == CMP_TYPE_RX_L2_V3_CMP) { 2337 type = bnxt_rss_ext_op(bp, rxcmp); 2338 } else { 2339 u32 itypes = RX_CMP_ITYPES(rxcmp); 2340 2341 if (itypes == RX_CMP_FLAGS_ITYPE_TCP || 2342 itypes == RX_CMP_FLAGS_ITYPE_UDP) 2343 type = PKT_HASH_TYPE_L4; 2344 else 2345 type = PKT_HASH_TYPE_L3; 2346 } 2347 skb_set_hash(skb, le32_to_cpu(rxcmp->rx_cmp_rss_hash), type); 2348 } 2349 2350 if (cmp_type == CMP_TYPE_RX_L2_CMP) 2351 dev = bnxt_get_pkt_dev(bp, RX_CMP_CFA_CODE(rxcmp1)); 2352 skb->protocol = eth_type_trans(skb, dev); 2353 2354 if (skb->dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX) { 2355 skb = bnxt_rx_vlan(skb, cmp_type, rxcmp, rxcmp1); 2356 if (!skb) 2357 goto next_rx; 2358 } 2359 2360 skb_checksum_none_assert(skb); 2361 if (RX_CMP_L4_CS_OK(rxcmp1)) { 2362 if (dev->features & NETIF_F_RXCSUM) { 2363 skb->ip_summed = CHECKSUM_UNNECESSARY; 2364 skb->csum_level = RX_CMP_ENCAP(rxcmp1); 2365 } 2366 } else { 2367 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS) { 2368 if (dev->features & NETIF_F_RXCSUM) 2369 bnapi->cp_ring.sw_stats->rx.rx_l4_csum_errors++; 2370 } 2371 } 2372 2373 if (bnxt_rx_ts_valid(bp, flags, rxcmp1, &cmpl_ts)) { 2374 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 2375 u64 ns, ts; 2376 2377 if (!bnxt_get_rx_ts_p5(bp, &ts, cmpl_ts)) { 2378 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 2379 2380 ns = bnxt_timecounter_cyc2time(ptp, ts); 2381 memset(skb_hwtstamps(skb), 0, 2382 sizeof(*skb_hwtstamps(skb))); 2383 skb_hwtstamps(skb)->hwtstamp = ns_to_ktime(ns); 2384 } 2385 } 2386 } 2387 bnxt_deliver_skb(bp, bnapi, skb); 2388 rc = 1; 2389 2390 next_rx: 2391 cpr->rx_packets += 1; 2392 cpr->rx_bytes += len; 2393 2394 next_rx_no_len: 2395 rxr->rx_prod = NEXT_RX(prod); 2396 rxr->rx_next_cons = RING_RX(bp, NEXT_RX(cons)); 2397 2398 next_rx_no_prod_no_len: 2399 *raw_cons = tmp_raw_cons; 2400 2401 return rc; 2402 2403 oom_next_rx: 2404 cpr->sw_stats->rx.rx_oom_discards += 1; 2405 rc = -ENOMEM; 2406 goto next_rx; 2407 } 2408 2409 /* In netpoll mode, if we are using a combined completion ring, we need to 2410 * discard the rx packets and recycle the buffers. 2411 */ 2412 static int bnxt_force_rx_discard(struct bnxt *bp, 2413 struct bnxt_cp_ring_info *cpr, 2414 u32 *raw_cons, u8 *event) 2415 { 2416 u32 tmp_raw_cons = *raw_cons; 2417 struct rx_cmp_ext *rxcmp1; 2418 struct rx_cmp *rxcmp; 2419 u16 cp_cons; 2420 u8 cmp_type; 2421 int rc; 2422 2423 cp_cons = RING_CMP(tmp_raw_cons); 2424 rxcmp = (struct rx_cmp *) 2425 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 2426 2427 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons); 2428 cp_cons = RING_CMP(tmp_raw_cons); 2429 rxcmp1 = (struct rx_cmp_ext *) 2430 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 2431 2432 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) 2433 return -EBUSY; 2434 2435 /* The valid test of the entry must be done first before 2436 * reading any further. 2437 */ 2438 dma_rmb(); 2439 cmp_type = RX_CMP_TYPE(rxcmp); 2440 if (cmp_type == CMP_TYPE_RX_L2_CMP || 2441 cmp_type == CMP_TYPE_RX_L2_V3_CMP) { 2442 rxcmp1->rx_cmp_cfa_code_errors_v2 |= 2443 cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR); 2444 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { 2445 struct rx_tpa_end_cmp_ext *tpa_end1; 2446 2447 tpa_end1 = (struct rx_tpa_end_cmp_ext *)rxcmp1; 2448 tpa_end1->rx_tpa_end_cmp_errors_v2 |= 2449 cpu_to_le32(RX_TPA_END_CMP_ERRORS); 2450 } 2451 rc = bnxt_rx_pkt(bp, cpr, raw_cons, event); 2452 if (rc && rc != -EBUSY) 2453 cpr->sw_stats->rx.rx_netpoll_discards += 1; 2454 return rc; 2455 } 2456 2457 u32 bnxt_fw_health_readl(struct bnxt *bp, int reg_idx) 2458 { 2459 struct bnxt_fw_health *fw_health = bp->fw_health; 2460 u32 reg = fw_health->regs[reg_idx]; 2461 u32 reg_type, reg_off, val = 0; 2462 2463 reg_type = BNXT_FW_HEALTH_REG_TYPE(reg); 2464 reg_off = BNXT_FW_HEALTH_REG_OFF(reg); 2465 switch (reg_type) { 2466 case BNXT_FW_HEALTH_REG_TYPE_CFG: 2467 pci_read_config_dword(bp->pdev, reg_off, &val); 2468 break; 2469 case BNXT_FW_HEALTH_REG_TYPE_GRC: 2470 reg_off = fw_health->mapped_regs[reg_idx]; 2471 fallthrough; 2472 case BNXT_FW_HEALTH_REG_TYPE_BAR0: 2473 val = readl(bp->bar0 + reg_off); 2474 break; 2475 case BNXT_FW_HEALTH_REG_TYPE_BAR1: 2476 val = readl(bp->bar1 + reg_off); 2477 break; 2478 } 2479 if (reg_idx == BNXT_FW_RESET_INPROG_REG) 2480 val &= fw_health->fw_reset_inprog_reg_mask; 2481 return val; 2482 } 2483 2484 static u16 bnxt_agg_ring_id_to_grp_idx(struct bnxt *bp, u16 ring_id) 2485 { 2486 int i; 2487 2488 for (i = 0; i < bp->rx_nr_rings; i++) { 2489 u16 grp_idx = bp->rx_ring[i].bnapi->index; 2490 struct bnxt_ring_grp_info *grp_info; 2491 2492 grp_info = &bp->grp_info[grp_idx]; 2493 if (grp_info->agg_fw_ring_id == ring_id) 2494 return grp_idx; 2495 } 2496 return INVALID_HW_RING_ID; 2497 } 2498 2499 static u16 bnxt_get_force_speed(struct bnxt_link_info *link_info) 2500 { 2501 struct bnxt *bp = container_of(link_info, struct bnxt, link_info); 2502 2503 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) 2504 return link_info->force_link_speed2; 2505 if (link_info->req_signal_mode == BNXT_SIG_MODE_PAM4) 2506 return link_info->force_pam4_link_speed; 2507 return link_info->force_link_speed; 2508 } 2509 2510 static void bnxt_set_force_speed(struct bnxt_link_info *link_info) 2511 { 2512 struct bnxt *bp = container_of(link_info, struct bnxt, link_info); 2513 2514 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) { 2515 link_info->req_link_speed = link_info->force_link_speed2; 2516 link_info->req_signal_mode = BNXT_SIG_MODE_NRZ; 2517 switch (link_info->req_link_speed) { 2518 case BNXT_LINK_SPEED_50GB_PAM4: 2519 case BNXT_LINK_SPEED_100GB_PAM4: 2520 case BNXT_LINK_SPEED_200GB_PAM4: 2521 case BNXT_LINK_SPEED_400GB_PAM4: 2522 link_info->req_signal_mode = BNXT_SIG_MODE_PAM4; 2523 break; 2524 case BNXT_LINK_SPEED_100GB_PAM4_112: 2525 case BNXT_LINK_SPEED_200GB_PAM4_112: 2526 case BNXT_LINK_SPEED_400GB_PAM4_112: 2527 link_info->req_signal_mode = BNXT_SIG_MODE_PAM4_112; 2528 break; 2529 default: 2530 link_info->req_signal_mode = BNXT_SIG_MODE_NRZ; 2531 } 2532 return; 2533 } 2534 link_info->req_link_speed = link_info->force_link_speed; 2535 link_info->req_signal_mode = BNXT_SIG_MODE_NRZ; 2536 if (link_info->force_pam4_link_speed) { 2537 link_info->req_link_speed = link_info->force_pam4_link_speed; 2538 link_info->req_signal_mode = BNXT_SIG_MODE_PAM4; 2539 } 2540 } 2541 2542 static void bnxt_set_auto_speed(struct bnxt_link_info *link_info) 2543 { 2544 struct bnxt *bp = container_of(link_info, struct bnxt, link_info); 2545 2546 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) { 2547 link_info->advertising = link_info->auto_link_speeds2; 2548 return; 2549 } 2550 link_info->advertising = link_info->auto_link_speeds; 2551 link_info->advertising_pam4 = link_info->auto_pam4_link_speeds; 2552 } 2553 2554 static bool bnxt_force_speed_updated(struct bnxt_link_info *link_info) 2555 { 2556 struct bnxt *bp = container_of(link_info, struct bnxt, link_info); 2557 2558 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) { 2559 if (link_info->req_link_speed != link_info->force_link_speed2) 2560 return true; 2561 return false; 2562 } 2563 if (link_info->req_signal_mode == BNXT_SIG_MODE_NRZ && 2564 link_info->req_link_speed != link_info->force_link_speed) 2565 return true; 2566 if (link_info->req_signal_mode == BNXT_SIG_MODE_PAM4 && 2567 link_info->req_link_speed != link_info->force_pam4_link_speed) 2568 return true; 2569 return false; 2570 } 2571 2572 static bool bnxt_auto_speed_updated(struct bnxt_link_info *link_info) 2573 { 2574 struct bnxt *bp = container_of(link_info, struct bnxt, link_info); 2575 2576 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) { 2577 if (link_info->advertising != link_info->auto_link_speeds2) 2578 return true; 2579 return false; 2580 } 2581 if (link_info->advertising != link_info->auto_link_speeds || 2582 link_info->advertising_pam4 != link_info->auto_pam4_link_speeds) 2583 return true; 2584 return false; 2585 } 2586 2587 bool bnxt_bs_trace_avail(struct bnxt *bp, u16 type) 2588 { 2589 u32 flags = bp->ctx->ctx_arr[type].flags; 2590 2591 return (flags & BNXT_CTX_MEM_TYPE_VALID) && 2592 ((flags & BNXT_CTX_MEM_FW_TRACE) || 2593 (flags & BNXT_CTX_MEM_FW_BIN_TRACE)); 2594 } 2595 2596 static void bnxt_bs_trace_init(struct bnxt *bp, struct bnxt_ctx_mem_type *ctxm) 2597 { 2598 u32 mem_size, pages, rem_bytes, magic_byte_offset; 2599 u16 trace_type = bnxt_bstore_to_trace[ctxm->type]; 2600 struct bnxt_ctx_pg_info *ctx_pg = ctxm->pg_info; 2601 struct bnxt_ring_mem_info *rmem, *rmem_pg_tbl; 2602 struct bnxt_bs_trace_info *bs_trace; 2603 int last_pg; 2604 2605 if (ctxm->instance_bmap && ctxm->instance_bmap > 1) 2606 return; 2607 2608 mem_size = ctxm->max_entries * ctxm->entry_size; 2609 rem_bytes = mem_size % BNXT_PAGE_SIZE; 2610 pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); 2611 2612 last_pg = (pages - 1) & (MAX_CTX_PAGES - 1); 2613 magic_byte_offset = (rem_bytes ? rem_bytes : BNXT_PAGE_SIZE) - 1; 2614 2615 rmem = &ctx_pg[0].ring_mem; 2616 bs_trace = &bp->bs_trace[trace_type]; 2617 bs_trace->ctx_type = ctxm->type; 2618 bs_trace->trace_type = trace_type; 2619 if (pages > MAX_CTX_PAGES) { 2620 int last_pg_dir = rmem->nr_pages - 1; 2621 2622 rmem_pg_tbl = &ctx_pg[0].ctx_pg_tbl[last_pg_dir]->ring_mem; 2623 bs_trace->magic_byte = rmem_pg_tbl->pg_arr[last_pg]; 2624 } else { 2625 bs_trace->magic_byte = rmem->pg_arr[last_pg]; 2626 } 2627 bs_trace->magic_byte += magic_byte_offset; 2628 *bs_trace->magic_byte = BNXT_TRACE_BUF_MAGIC_BYTE; 2629 } 2630 2631 #define BNXT_EVENT_BUF_PRODUCER_TYPE(data1) \ 2632 (((data1) & ASYNC_EVENT_CMPL_DBG_BUF_PRODUCER_EVENT_DATA1_TYPE_MASK) >>\ 2633 ASYNC_EVENT_CMPL_DBG_BUF_PRODUCER_EVENT_DATA1_TYPE_SFT) 2634 2635 #define BNXT_EVENT_BUF_PRODUCER_OFFSET(data2) \ 2636 (((data2) & \ 2637 ASYNC_EVENT_CMPL_DBG_BUF_PRODUCER_EVENT_DATA2_CURR_OFF_MASK) >>\ 2638 ASYNC_EVENT_CMPL_DBG_BUF_PRODUCER_EVENT_DATA2_CURR_OFF_SFT) 2639 2640 #define BNXT_EVENT_THERMAL_CURRENT_TEMP(data2) \ 2641 ((data2) & \ 2642 ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA2_CURRENT_TEMP_MASK) 2643 2644 #define BNXT_EVENT_THERMAL_THRESHOLD_TEMP(data2) \ 2645 (((data2) & \ 2646 ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA2_THRESHOLD_TEMP_MASK) >>\ 2647 ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA2_THRESHOLD_TEMP_SFT) 2648 2649 #define EVENT_DATA1_THERMAL_THRESHOLD_TYPE(data1) \ 2650 ((data1) & \ 2651 ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_MASK) 2652 2653 #define EVENT_DATA1_THERMAL_THRESHOLD_DIR_INCREASING(data1) \ 2654 (((data1) & \ 2655 ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_TRANSITION_DIR) ==\ 2656 ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_TRANSITION_DIR_INCREASING) 2657 2658 /* Return true if the workqueue has to be scheduled */ 2659 static bool bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2) 2660 { 2661 u32 err_type = BNXT_EVENT_ERROR_REPORT_TYPE(data1); 2662 2663 switch (err_type) { 2664 case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_INVALID_SIGNAL: 2665 netdev_err(bp->dev, "1PPS: Received invalid signal on pin%lu from the external source. Please fix the signal and reconfigure the pin\n", 2666 BNXT_EVENT_INVALID_SIGNAL_DATA(data2)); 2667 break; 2668 case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_PAUSE_STORM: 2669 netdev_warn(bp->dev, "Pause Storm detected!\n"); 2670 break; 2671 case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_DOORBELL_DROP_THRESHOLD: 2672 netdev_warn(bp->dev, "One or more MMIO doorbells dropped by the device!\n"); 2673 break; 2674 case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_THERMAL_THRESHOLD: { 2675 u32 type = EVENT_DATA1_THERMAL_THRESHOLD_TYPE(data1); 2676 char *threshold_type; 2677 bool notify = false; 2678 char *dir_str; 2679 2680 switch (type) { 2681 case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_WARN: 2682 threshold_type = "warning"; 2683 break; 2684 case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_CRITICAL: 2685 threshold_type = "critical"; 2686 break; 2687 case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_FATAL: 2688 threshold_type = "fatal"; 2689 break; 2690 case ASYNC_EVENT_CMPL_ERROR_REPORT_THERMAL_EVENT_DATA1_THRESHOLD_TYPE_SHUTDOWN: 2691 threshold_type = "shutdown"; 2692 break; 2693 default: 2694 netdev_err(bp->dev, "Unknown Thermal threshold type event\n"); 2695 return false; 2696 } 2697 if (EVENT_DATA1_THERMAL_THRESHOLD_DIR_INCREASING(data1)) { 2698 dir_str = "above"; 2699 notify = true; 2700 } else { 2701 dir_str = "below"; 2702 } 2703 netdev_warn(bp->dev, "Chip temperature has gone %s the %s thermal threshold!\n", 2704 dir_str, threshold_type); 2705 netdev_warn(bp->dev, "Temperature (In Celsius), Current: %lu, threshold: %lu\n", 2706 BNXT_EVENT_THERMAL_CURRENT_TEMP(data2), 2707 BNXT_EVENT_THERMAL_THRESHOLD_TEMP(data2)); 2708 if (notify) { 2709 bp->thermal_threshold_type = type; 2710 set_bit(BNXT_THERMAL_THRESHOLD_SP_EVENT, &bp->sp_event); 2711 return true; 2712 } 2713 return false; 2714 } 2715 case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_DUAL_DATA_RATE_NOT_SUPPORTED: 2716 netdev_warn(bp->dev, "Speed change not supported with dual rate transceivers on this board\n"); 2717 break; 2718 default: 2719 netdev_err(bp->dev, "FW reported unknown error type %u\n", 2720 err_type); 2721 break; 2722 } 2723 return false; 2724 } 2725 2726 #define BNXT_GET_EVENT_PORT(data) \ 2727 ((data) & \ 2728 ASYNC_EVENT_CMPL_PORT_CONN_NOT_ALLOWED_EVENT_DATA1_PORT_ID_MASK) 2729 2730 #define BNXT_EVENT_RING_TYPE(data2) \ 2731 ((data2) & \ 2732 ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_MASK) 2733 2734 #define BNXT_EVENT_RING_TYPE_RX(data2) \ 2735 (BNXT_EVENT_RING_TYPE(data2) == \ 2736 ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_RX) 2737 2738 #define BNXT_EVENT_PHC_EVENT_TYPE(data1) \ 2739 (((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_MASK) >>\ 2740 ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_SFT) 2741 2742 #define BNXT_EVENT_PHC_RTC_UPDATE(data1) \ 2743 (((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_MASK) >>\ 2744 ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_SFT) 2745 2746 #define BNXT_PHC_BITS 48 2747 2748 static int bnxt_async_event_process(struct bnxt *bp, 2749 struct hwrm_async_event_cmpl *cmpl) 2750 { 2751 u16 event_id = le16_to_cpu(cmpl->event_id); 2752 u32 data1 = le32_to_cpu(cmpl->event_data1); 2753 u32 data2 = le32_to_cpu(cmpl->event_data2); 2754 2755 netdev_dbg(bp->dev, "hwrm event 0x%x {0x%x, 0x%x}\n", 2756 event_id, data1, data2); 2757 2758 /* TODO CHIMP_FW: Define event id's for link change, error etc */ 2759 switch (event_id) { 2760 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: { 2761 struct bnxt_link_info *link_info = &bp->link_info; 2762 2763 if (BNXT_VF(bp)) 2764 goto async_event_process_exit; 2765 2766 /* print unsupported speed warning in forced speed mode only */ 2767 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED) && 2768 (data1 & 0x20000)) { 2769 u16 fw_speed = bnxt_get_force_speed(link_info); 2770 u32 speed = bnxt_fw_to_ethtool_speed(fw_speed); 2771 2772 if (speed != SPEED_UNKNOWN) 2773 netdev_warn(bp->dev, "Link speed %d no longer supported\n", 2774 speed); 2775 } 2776 set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event); 2777 } 2778 fallthrough; 2779 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE: 2780 case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE: 2781 set_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT, &bp->sp_event); 2782 fallthrough; 2783 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE: 2784 set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event); 2785 break; 2786 case ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD: 2787 set_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event); 2788 break; 2789 case ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED: { 2790 u16 port_id = BNXT_GET_EVENT_PORT(data1); 2791 2792 if (BNXT_VF(bp)) 2793 break; 2794 2795 if (bp->pf.port_id != port_id) 2796 break; 2797 2798 set_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event); 2799 break; 2800 } 2801 case ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE: 2802 if (BNXT_PF(bp)) 2803 goto async_event_process_exit; 2804 set_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event); 2805 break; 2806 case ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY: { 2807 char *type_str = "Solicited"; 2808 2809 if (!bp->fw_health) 2810 goto async_event_process_exit; 2811 2812 bp->fw_reset_timestamp = jiffies; 2813 bp->fw_reset_min_dsecs = cmpl->timestamp_lo; 2814 if (!bp->fw_reset_min_dsecs) 2815 bp->fw_reset_min_dsecs = BNXT_DFLT_FW_RST_MIN_DSECS; 2816 bp->fw_reset_max_dsecs = le16_to_cpu(cmpl->timestamp_hi); 2817 if (!bp->fw_reset_max_dsecs) 2818 bp->fw_reset_max_dsecs = BNXT_DFLT_FW_RST_MAX_DSECS; 2819 if (EVENT_DATA1_RESET_NOTIFY_FW_ACTIVATION(data1)) { 2820 set_bit(BNXT_STATE_FW_ACTIVATE_RESET, &bp->state); 2821 } else if (EVENT_DATA1_RESET_NOTIFY_FATAL(data1)) { 2822 type_str = "Fatal"; 2823 bp->fw_health->fatalities++; 2824 set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); 2825 } else if (data2 && BNXT_FW_STATUS_HEALTHY != 2826 EVENT_DATA2_RESET_NOTIFY_FW_STATUS_CODE(data2)) { 2827 type_str = "Non-fatal"; 2828 bp->fw_health->survivals++; 2829 set_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state); 2830 } 2831 netif_warn(bp, hw, bp->dev, 2832 "%s firmware reset event, data1: 0x%x, data2: 0x%x, min wait %u ms, max wait %u ms\n", 2833 type_str, data1, data2, 2834 bp->fw_reset_min_dsecs * 100, 2835 bp->fw_reset_max_dsecs * 100); 2836 set_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event); 2837 break; 2838 } 2839 case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY: { 2840 struct bnxt_fw_health *fw_health = bp->fw_health; 2841 char *status_desc = "healthy"; 2842 u32 status; 2843 2844 if (!fw_health) 2845 goto async_event_process_exit; 2846 2847 if (!EVENT_DATA1_RECOVERY_ENABLED(data1)) { 2848 fw_health->enabled = false; 2849 netif_info(bp, drv, bp->dev, "Driver recovery watchdog is disabled\n"); 2850 break; 2851 } 2852 fw_health->primary = EVENT_DATA1_RECOVERY_MASTER_FUNC(data1); 2853 fw_health->tmr_multiplier = 2854 DIV_ROUND_UP(fw_health->polling_dsecs * HZ, 2855 bp->current_interval * 10); 2856 fw_health->tmr_counter = fw_health->tmr_multiplier; 2857 if (!fw_health->enabled) 2858 fw_health->last_fw_heartbeat = 2859 bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); 2860 fw_health->last_fw_reset_cnt = 2861 bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 2862 status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 2863 if (status != BNXT_FW_STATUS_HEALTHY) 2864 status_desc = "unhealthy"; 2865 netif_info(bp, drv, bp->dev, 2866 "Driver recovery watchdog, role: %s, firmware status: 0x%x (%s), resets: %u\n", 2867 fw_health->primary ? "primary" : "backup", status, 2868 status_desc, fw_health->last_fw_reset_cnt); 2869 if (!fw_health->enabled) { 2870 /* Make sure tmr_counter is set and visible to 2871 * bnxt_health_check() before setting enabled to true. 2872 */ 2873 smp_wmb(); 2874 fw_health->enabled = true; 2875 } 2876 goto async_event_process_exit; 2877 } 2878 case ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION: 2879 netif_notice(bp, hw, bp->dev, 2880 "Received firmware debug notification, data1: 0x%x, data2: 0x%x\n", 2881 data1, data2); 2882 goto async_event_process_exit; 2883 case ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG: { 2884 struct bnxt_rx_ring_info *rxr; 2885 u16 grp_idx; 2886 2887 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 2888 goto async_event_process_exit; 2889 2890 netdev_warn(bp->dev, "Ring monitor event, ring type %lu id 0x%x\n", 2891 BNXT_EVENT_RING_TYPE(data2), data1); 2892 if (!BNXT_EVENT_RING_TYPE_RX(data2)) 2893 goto async_event_process_exit; 2894 2895 grp_idx = bnxt_agg_ring_id_to_grp_idx(bp, data1); 2896 if (grp_idx == INVALID_HW_RING_ID) { 2897 netdev_warn(bp->dev, "Unknown RX agg ring id 0x%x\n", 2898 data1); 2899 goto async_event_process_exit; 2900 } 2901 rxr = bp->bnapi[grp_idx]->rx_ring; 2902 bnxt_sched_reset_rxr(bp, rxr); 2903 goto async_event_process_exit; 2904 } 2905 case ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST: { 2906 struct bnxt_fw_health *fw_health = bp->fw_health; 2907 2908 netif_notice(bp, hw, bp->dev, 2909 "Received firmware echo request, data1: 0x%x, data2: 0x%x\n", 2910 data1, data2); 2911 if (fw_health) { 2912 fw_health->echo_req_data1 = data1; 2913 fw_health->echo_req_data2 = data2; 2914 set_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event); 2915 break; 2916 } 2917 goto async_event_process_exit; 2918 } 2919 case ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP: { 2920 bnxt_ptp_pps_event(bp, data1, data2); 2921 goto async_event_process_exit; 2922 } 2923 case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT: { 2924 if (bnxt_event_error_report(bp, data1, data2)) 2925 break; 2926 goto async_event_process_exit; 2927 } 2928 case ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE: { 2929 switch (BNXT_EVENT_PHC_EVENT_TYPE(data1)) { 2930 case ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_PHC_RTC_UPDATE: 2931 if (BNXT_PTP_USE_RTC(bp)) { 2932 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 2933 unsigned long flags; 2934 u64 ns; 2935 2936 if (!ptp) 2937 goto async_event_process_exit; 2938 2939 bnxt_ptp_update_current_time(bp); 2940 ns = (((u64)BNXT_EVENT_PHC_RTC_UPDATE(data1) << 2941 BNXT_PHC_BITS) | ptp->current_time); 2942 write_seqlock_irqsave(&ptp->ptp_lock, flags); 2943 bnxt_ptp_rtc_timecounter_init(ptp, ns); 2944 write_sequnlock_irqrestore(&ptp->ptp_lock, flags); 2945 } 2946 break; 2947 } 2948 goto async_event_process_exit; 2949 } 2950 case ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE: { 2951 u16 seq_id = le32_to_cpu(cmpl->event_data2) & 0xffff; 2952 2953 hwrm_update_token(bp, seq_id, BNXT_HWRM_DEFERRED); 2954 goto async_event_process_exit; 2955 } 2956 case ASYNC_EVENT_CMPL_EVENT_ID_DBG_BUF_PRODUCER: { 2957 u16 type = (u16)BNXT_EVENT_BUF_PRODUCER_TYPE(data1); 2958 u32 offset = BNXT_EVENT_BUF_PRODUCER_OFFSET(data2); 2959 2960 if (type >= ARRAY_SIZE(bp->bs_trace)) 2961 goto async_event_process_exit; 2962 bnxt_bs_trace_check_wrap(&bp->bs_trace[type], offset); 2963 goto async_event_process_exit; 2964 } 2965 default: 2966 goto async_event_process_exit; 2967 } 2968 __bnxt_queue_sp_work(bp); 2969 async_event_process_exit: 2970 bnxt_ulp_async_events(bp, cmpl); 2971 return 0; 2972 } 2973 2974 static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp) 2975 { 2976 u16 cmpl_type = TX_CMP_TYPE(txcmp), vf_id, seq_id; 2977 struct hwrm_cmpl *h_cmpl = (struct hwrm_cmpl *)txcmp; 2978 struct hwrm_fwd_req_cmpl *fwd_req_cmpl = 2979 (struct hwrm_fwd_req_cmpl *)txcmp; 2980 2981 switch (cmpl_type) { 2982 case CMPL_BASE_TYPE_HWRM_DONE: 2983 seq_id = le16_to_cpu(h_cmpl->sequence_id); 2984 hwrm_update_token(bp, seq_id, BNXT_HWRM_COMPLETE); 2985 break; 2986 2987 case CMPL_BASE_TYPE_HWRM_FWD_REQ: 2988 vf_id = le16_to_cpu(fwd_req_cmpl->source_id); 2989 2990 if ((vf_id < bp->pf.first_vf_id) || 2991 (vf_id >= bp->pf.first_vf_id + bp->pf.active_vfs)) { 2992 netdev_err(bp->dev, "Msg contains invalid VF id %x\n", 2993 vf_id); 2994 return -EINVAL; 2995 } 2996 2997 set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap); 2998 bnxt_queue_sp_work(bp, BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT); 2999 break; 3000 3001 case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT: 3002 bnxt_async_event_process(bp, 3003 (struct hwrm_async_event_cmpl *)txcmp); 3004 break; 3005 3006 default: 3007 break; 3008 } 3009 3010 return 0; 3011 } 3012 3013 static bool bnxt_vnic_is_active(struct bnxt *bp) 3014 { 3015 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 3016 3017 return vnic->fw_vnic_id != INVALID_HW_RING_ID && vnic->mru > 0; 3018 } 3019 3020 static irqreturn_t bnxt_msix(int irq, void *dev_instance) 3021 { 3022 struct bnxt_napi *bnapi = dev_instance; 3023 struct bnxt *bp = bnapi->bp; 3024 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 3025 u32 cons = RING_CMP(cpr->cp_raw_cons); 3026 3027 cpr->event_ctr++; 3028 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]); 3029 napi_schedule(&bnapi->napi); 3030 return IRQ_HANDLED; 3031 } 3032 3033 static inline int bnxt_has_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr) 3034 { 3035 u32 raw_cons = cpr->cp_raw_cons; 3036 u16 cons = RING_CMP(raw_cons); 3037 struct tx_cmp *txcmp; 3038 3039 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]; 3040 3041 return TX_CMP_VALID(txcmp, raw_cons); 3042 } 3043 3044 static int __bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 3045 int budget) 3046 { 3047 struct bnxt_napi *bnapi = cpr->bnapi; 3048 u32 raw_cons = cpr->cp_raw_cons; 3049 bool flush_xdp = false; 3050 u32 cons; 3051 int rx_pkts = 0; 3052 u8 event = 0; 3053 struct tx_cmp *txcmp; 3054 3055 cpr->has_more_work = 0; 3056 cpr->had_work_done = 1; 3057 while (1) { 3058 u8 cmp_type; 3059 int rc; 3060 3061 cons = RING_CMP(raw_cons); 3062 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]; 3063 3064 if (!TX_CMP_VALID(txcmp, raw_cons)) 3065 break; 3066 3067 /* The valid test of the entry must be done first before 3068 * reading any further. 3069 */ 3070 dma_rmb(); 3071 cmp_type = TX_CMP_TYPE(txcmp); 3072 if (cmp_type == CMP_TYPE_TX_L2_CMP || 3073 cmp_type == CMP_TYPE_TX_L2_COAL_CMP) { 3074 u32 opaque = txcmp->tx_cmp_opaque; 3075 struct bnxt_tx_ring_info *txr; 3076 u16 tx_freed; 3077 3078 txr = bnapi->tx_ring[TX_OPAQUE_RING(opaque)]; 3079 event |= BNXT_TX_CMP_EVENT; 3080 if (cmp_type == CMP_TYPE_TX_L2_COAL_CMP) 3081 txr->tx_hw_cons = TX_CMP_SQ_CONS_IDX(txcmp); 3082 else 3083 txr->tx_hw_cons = TX_OPAQUE_PROD(bp, opaque); 3084 tx_freed = (txr->tx_hw_cons - txr->tx_cons) & 3085 bp->tx_ring_mask; 3086 /* return full budget so NAPI will complete. */ 3087 if (unlikely(tx_freed >= bp->tx_wake_thresh)) { 3088 rx_pkts = budget; 3089 raw_cons = NEXT_RAW_CMP(raw_cons); 3090 if (budget) 3091 cpr->has_more_work = 1; 3092 break; 3093 } 3094 } else if (cmp_type == CMP_TYPE_TX_L2_PKT_TS_CMP) { 3095 bnxt_tx_ts_cmp(bp, bnapi, (struct tx_ts_cmp *)txcmp); 3096 } else if (cmp_type >= CMP_TYPE_RX_L2_CMP && 3097 cmp_type <= CMP_TYPE_RX_L2_TPA_START_V3_CMP) { 3098 if (likely(budget)) 3099 rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event); 3100 else 3101 rc = bnxt_force_rx_discard(bp, cpr, &raw_cons, 3102 &event); 3103 if (event & BNXT_REDIRECT_EVENT) 3104 flush_xdp = true; 3105 if (likely(rc >= 0)) 3106 rx_pkts += rc; 3107 /* Increment rx_pkts when rc is -ENOMEM to count towards 3108 * the NAPI budget. Otherwise, we may potentially loop 3109 * here forever if we consistently cannot allocate 3110 * buffers. 3111 */ 3112 else if (rc == -ENOMEM && budget) 3113 rx_pkts++; 3114 else if (rc == -EBUSY) /* partial completion */ 3115 break; 3116 } else if (unlikely(cmp_type == CMPL_BASE_TYPE_HWRM_DONE || 3117 cmp_type == CMPL_BASE_TYPE_HWRM_FWD_REQ || 3118 cmp_type == CMPL_BASE_TYPE_HWRM_ASYNC_EVENT)) { 3119 bnxt_hwrm_handler(bp, txcmp); 3120 } 3121 raw_cons = NEXT_RAW_CMP(raw_cons); 3122 3123 if (rx_pkts && rx_pkts == budget) { 3124 cpr->has_more_work = 1; 3125 break; 3126 } 3127 } 3128 3129 if (flush_xdp) { 3130 xdp_do_flush(); 3131 event &= ~BNXT_REDIRECT_EVENT; 3132 } 3133 3134 if (event & BNXT_TX_EVENT) { 3135 struct bnxt_tx_ring_info *txr = bnapi->tx_ring[0]; 3136 u16 prod = txr->tx_prod; 3137 3138 /* Sync BD data before updating doorbell */ 3139 wmb(); 3140 3141 bnxt_db_write_relaxed(bp, &txr->tx_db, prod); 3142 event &= ~BNXT_TX_EVENT; 3143 } 3144 3145 cpr->cp_raw_cons = raw_cons; 3146 bnapi->events |= event; 3147 return rx_pkts; 3148 } 3149 3150 static void __bnxt_poll_work_done(struct bnxt *bp, struct bnxt_napi *bnapi, 3151 int budget) 3152 { 3153 if ((bnapi->events & BNXT_TX_CMP_EVENT) && !bnapi->tx_fault) 3154 bnapi->tx_int(bp, bnapi, budget); 3155 3156 if ((bnapi->events & BNXT_RX_EVENT) && !(bnapi->in_reset)) { 3157 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 3158 3159 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 3160 bnapi->events &= ~BNXT_RX_EVENT; 3161 } 3162 if (bnapi->events & BNXT_AGG_EVENT) { 3163 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 3164 3165 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 3166 bnapi->events &= ~BNXT_AGG_EVENT; 3167 } 3168 } 3169 3170 static int bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 3171 int budget) 3172 { 3173 struct bnxt_napi *bnapi = cpr->bnapi; 3174 int rx_pkts; 3175 3176 rx_pkts = __bnxt_poll_work(bp, cpr, budget); 3177 3178 /* ACK completion ring before freeing tx ring and producing new 3179 * buffers in rx/agg rings to prevent overflowing the completion 3180 * ring. 3181 */ 3182 bnxt_db_cq(bp, &cpr->cp_db, cpr->cp_raw_cons); 3183 3184 __bnxt_poll_work_done(bp, bnapi, budget); 3185 return rx_pkts; 3186 } 3187 3188 static int bnxt_poll_nitroa0(struct napi_struct *napi, int budget) 3189 { 3190 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); 3191 struct bnxt *bp = bnapi->bp; 3192 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 3193 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 3194 struct tx_cmp *txcmp; 3195 struct rx_cmp_ext *rxcmp1; 3196 u32 cp_cons, tmp_raw_cons; 3197 u32 raw_cons = cpr->cp_raw_cons; 3198 bool flush_xdp = false; 3199 u32 rx_pkts = 0; 3200 u8 event = 0; 3201 3202 while (1) { 3203 int rc; 3204 3205 cp_cons = RING_CMP(raw_cons); 3206 txcmp = &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 3207 3208 if (!TX_CMP_VALID(txcmp, raw_cons)) 3209 break; 3210 3211 /* The valid test of the entry must be done first before 3212 * reading any further. 3213 */ 3214 dma_rmb(); 3215 if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) { 3216 tmp_raw_cons = NEXT_RAW_CMP(raw_cons); 3217 cp_cons = RING_CMP(tmp_raw_cons); 3218 rxcmp1 = (struct rx_cmp_ext *) 3219 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 3220 3221 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) 3222 break; 3223 3224 /* force an error to recycle the buffer */ 3225 rxcmp1->rx_cmp_cfa_code_errors_v2 |= 3226 cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR); 3227 3228 rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event); 3229 if (likely(rc == -EIO) && budget) 3230 rx_pkts++; 3231 else if (rc == -EBUSY) /* partial completion */ 3232 break; 3233 if (event & BNXT_REDIRECT_EVENT) 3234 flush_xdp = true; 3235 } else if (unlikely(TX_CMP_TYPE(txcmp) == 3236 CMPL_BASE_TYPE_HWRM_DONE)) { 3237 bnxt_hwrm_handler(bp, txcmp); 3238 } else { 3239 netdev_err(bp->dev, 3240 "Invalid completion received on special ring\n"); 3241 } 3242 raw_cons = NEXT_RAW_CMP(raw_cons); 3243 3244 if (rx_pkts == budget) 3245 break; 3246 } 3247 3248 cpr->cp_raw_cons = raw_cons; 3249 BNXT_DB_CQ(&cpr->cp_db, cpr->cp_raw_cons); 3250 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 3251 3252 if (event & BNXT_AGG_EVENT) 3253 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 3254 if (flush_xdp) 3255 xdp_do_flush(); 3256 3257 if (!bnxt_has_work(bp, cpr) && rx_pkts < budget) { 3258 napi_complete_done(napi, rx_pkts); 3259 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); 3260 } 3261 return rx_pkts; 3262 } 3263 3264 static int bnxt_poll(struct napi_struct *napi, int budget) 3265 { 3266 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); 3267 struct bnxt *bp = bnapi->bp; 3268 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 3269 int work_done = 0; 3270 3271 if (unlikely(test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))) { 3272 napi_complete(napi); 3273 return 0; 3274 } 3275 while (1) { 3276 work_done += bnxt_poll_work(bp, cpr, budget - work_done); 3277 3278 if (work_done >= budget) { 3279 if (!budget) 3280 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); 3281 break; 3282 } 3283 3284 if (!bnxt_has_work(bp, cpr)) { 3285 if (napi_complete_done(napi, work_done)) 3286 BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); 3287 break; 3288 } 3289 } 3290 if ((bp->flags & BNXT_FLAG_DIM) && bnxt_vnic_is_active(bp)) { 3291 struct dim_sample dim_sample = {}; 3292 3293 dim_update_sample(cpr->event_ctr, 3294 cpr->rx_packets, 3295 cpr->rx_bytes, 3296 &dim_sample); 3297 net_dim(&cpr->dim, &dim_sample); 3298 } 3299 return work_done; 3300 } 3301 3302 static int __bnxt_poll_cqs(struct bnxt *bp, struct bnxt_napi *bnapi, int budget) 3303 { 3304 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 3305 int i, work_done = 0; 3306 3307 for (i = 0; i < cpr->cp_ring_count; i++) { 3308 struct bnxt_cp_ring_info *cpr2 = &cpr->cp_ring_arr[i]; 3309 3310 if (cpr2->had_nqe_notify) { 3311 work_done += __bnxt_poll_work(bp, cpr2, 3312 budget - work_done); 3313 cpr->has_more_work |= cpr2->has_more_work; 3314 } 3315 } 3316 return work_done; 3317 } 3318 3319 static void __bnxt_poll_cqs_done(struct bnxt *bp, struct bnxt_napi *bnapi, 3320 u64 dbr_type, int budget) 3321 { 3322 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 3323 int i; 3324 3325 for (i = 0; i < cpr->cp_ring_count; i++) { 3326 struct bnxt_cp_ring_info *cpr2 = &cpr->cp_ring_arr[i]; 3327 struct bnxt_db_info *db; 3328 3329 if (cpr2->had_work_done) { 3330 u32 tgl = 0; 3331 3332 if (dbr_type == DBR_TYPE_CQ_ARMALL) { 3333 cpr2->had_nqe_notify = 0; 3334 tgl = cpr2->toggle; 3335 } 3336 db = &cpr2->cp_db; 3337 bnxt_writeq(bp, 3338 db->db_key64 | dbr_type | DB_TOGGLE(tgl) | 3339 DB_RING_IDX(db, cpr2->cp_raw_cons), 3340 db->doorbell); 3341 cpr2->had_work_done = 0; 3342 } 3343 } 3344 __bnxt_poll_work_done(bp, bnapi, budget); 3345 } 3346 3347 static int bnxt_poll_p5(struct napi_struct *napi, int budget) 3348 { 3349 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); 3350 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 3351 struct bnxt_cp_ring_info *cpr_rx; 3352 u32 raw_cons = cpr->cp_raw_cons; 3353 struct bnxt *bp = bnapi->bp; 3354 struct nqe_cn *nqcmp; 3355 int work_done = 0; 3356 u32 cons; 3357 3358 if (unlikely(test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))) { 3359 napi_complete(napi); 3360 return 0; 3361 } 3362 if (cpr->has_more_work) { 3363 cpr->has_more_work = 0; 3364 work_done = __bnxt_poll_cqs(bp, bnapi, budget); 3365 } 3366 while (1) { 3367 u16 type; 3368 3369 cons = RING_CMP(raw_cons); 3370 nqcmp = &cpr->nq_desc_ring[CP_RING(cons)][CP_IDX(cons)]; 3371 3372 if (!NQ_CMP_VALID(nqcmp, raw_cons)) { 3373 if (cpr->has_more_work) 3374 break; 3375 3376 __bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ_ARMALL, 3377 budget); 3378 cpr->cp_raw_cons = raw_cons; 3379 if (napi_complete_done(napi, work_done)) 3380 BNXT_DB_NQ_ARM_P5(&cpr->cp_db, 3381 cpr->cp_raw_cons); 3382 goto poll_done; 3383 } 3384 3385 /* The valid test of the entry must be done first before 3386 * reading any further. 3387 */ 3388 dma_rmb(); 3389 3390 type = le16_to_cpu(nqcmp->type); 3391 if (NQE_CN_TYPE(type) == NQ_CN_TYPE_CQ_NOTIFICATION) { 3392 u32 idx = le32_to_cpu(nqcmp->cq_handle_low); 3393 u32 cq_type = BNXT_NQ_HDL_TYPE(idx); 3394 struct bnxt_cp_ring_info *cpr2; 3395 3396 /* No more budget for RX work */ 3397 if (budget && work_done >= budget && 3398 cq_type == BNXT_NQ_HDL_TYPE_RX) 3399 break; 3400 3401 idx = BNXT_NQ_HDL_IDX(idx); 3402 cpr2 = &cpr->cp_ring_arr[idx]; 3403 cpr2->had_nqe_notify = 1; 3404 cpr2->toggle = NQE_CN_TOGGLE(type); 3405 work_done += __bnxt_poll_work(bp, cpr2, 3406 budget - work_done); 3407 cpr->has_more_work |= cpr2->has_more_work; 3408 } else { 3409 bnxt_hwrm_handler(bp, (struct tx_cmp *)nqcmp); 3410 } 3411 raw_cons = NEXT_RAW_CMP(raw_cons); 3412 } 3413 __bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ, budget); 3414 if (raw_cons != cpr->cp_raw_cons) { 3415 cpr->cp_raw_cons = raw_cons; 3416 BNXT_DB_NQ_P5(&cpr->cp_db, raw_cons); 3417 } 3418 poll_done: 3419 cpr_rx = &cpr->cp_ring_arr[0]; 3420 if (cpr_rx->cp_ring_type == BNXT_NQ_HDL_TYPE_RX && 3421 (bp->flags & BNXT_FLAG_DIM) && bnxt_vnic_is_active(bp)) { 3422 struct dim_sample dim_sample = {}; 3423 3424 dim_update_sample(cpr->event_ctr, 3425 cpr_rx->rx_packets, 3426 cpr_rx->rx_bytes, 3427 &dim_sample); 3428 net_dim(&cpr->dim, &dim_sample); 3429 } 3430 return work_done; 3431 } 3432 3433 static void bnxt_free_one_tx_ring_skbs(struct bnxt *bp, 3434 struct bnxt_tx_ring_info *txr, int idx) 3435 { 3436 int i, max_idx; 3437 struct pci_dev *pdev = bp->pdev; 3438 unsigned int dma_len; 3439 dma_addr_t dma_addr; 3440 3441 max_idx = bp->tx_nr_pages * TX_DESC_CNT; 3442 3443 for (i = 0; i < max_idx;) { 3444 struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[i]; 3445 struct bnxt_sw_tx_bd *head_buf = tx_buf; 3446 struct sk_buff *skb; 3447 int j, last; 3448 3449 if (idx < bp->tx_nr_rings_xdp && 3450 tx_buf->action == XDP_REDIRECT) { 3451 dma_addr = dma_unmap_addr(tx_buf, mapping); 3452 dma_len = dma_unmap_len(tx_buf, len); 3453 3454 dma_unmap_single(&pdev->dev, dma_addr, dma_len, 3455 DMA_TO_DEVICE); 3456 xdp_return_frame(tx_buf->xdpf); 3457 tx_buf->action = 0; 3458 tx_buf->xdpf = NULL; 3459 i++; 3460 continue; 3461 } 3462 3463 skb = tx_buf->skb; 3464 if (!skb) { 3465 i++; 3466 continue; 3467 } 3468 3469 tx_buf->skb = NULL; 3470 3471 if (tx_buf->is_push) { 3472 dev_kfree_skb(skb); 3473 i += 2; 3474 continue; 3475 } 3476 3477 if (dma_unmap_len(tx_buf, len)) { 3478 dma_addr = dma_unmap_addr(tx_buf, mapping); 3479 dma_len = dma_unmap_len(tx_buf, len); 3480 3481 dma_unmap_single(&pdev->dev, dma_addr, dma_len, 3482 DMA_TO_DEVICE); 3483 } 3484 3485 last = tx_buf->nr_frags; 3486 i += 2; 3487 for (j = 0; j < last; j++, i++) { 3488 int ring_idx = i & bp->tx_ring_mask; 3489 3490 tx_buf = &txr->tx_buf_ring[ring_idx]; 3491 if (dma_unmap_len(tx_buf, len)) { 3492 dma_addr = dma_unmap_addr(tx_buf, mapping); 3493 dma_len = dma_unmap_len(tx_buf, len); 3494 3495 netmem_dma_unmap_page_attrs(&pdev->dev, 3496 dma_addr, dma_len, 3497 DMA_TO_DEVICE, 0); 3498 } 3499 } 3500 if (head_buf->is_sw_gso) { 3501 u16 inline_cons = txr->tx_inline_cons + 1; 3502 3503 WRITE_ONCE(txr->tx_inline_cons, inline_cons); 3504 if (head_buf->is_sw_gso == BNXT_SW_GSO_LAST) { 3505 tso_dma_map_complete(&pdev->dev, 3506 &head_buf->sw_gso_cstate); 3507 } else { 3508 skb = NULL; 3509 } 3510 head_buf->is_sw_gso = 0; 3511 } 3512 if (skb) 3513 dev_kfree_skb(skb); 3514 } 3515 netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, idx)); 3516 } 3517 3518 static void bnxt_free_tx_skbs(struct bnxt *bp) 3519 { 3520 int i; 3521 3522 if (!bp->tx_ring) 3523 return; 3524 3525 for (i = 0; i < bp->tx_nr_rings; i++) { 3526 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 3527 3528 if (!txr->tx_buf_ring) 3529 continue; 3530 3531 bnxt_free_one_tx_ring_skbs(bp, txr, i); 3532 } 3533 3534 if (bp->ptp_cfg && !(bp->fw_cap & BNXT_FW_CAP_TX_TS_CMP)) 3535 bnxt_ptp_free_txts_skbs(bp->ptp_cfg); 3536 } 3537 3538 static void bnxt_free_one_rx_ring(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) 3539 { 3540 int i, max_idx; 3541 3542 max_idx = bp->rx_nr_pages * RX_DESC_CNT; 3543 3544 for (i = 0; i < max_idx; i++) { 3545 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[i]; 3546 void *data = rx_buf->data; 3547 3548 if (!data) 3549 continue; 3550 3551 rx_buf->data = NULL; 3552 if (BNXT_RX_PAGE_MODE(bp)) 3553 page_pool_recycle_direct(rxr->page_pool, data); 3554 else 3555 page_pool_free_va(rxr->head_pool, data, true); 3556 } 3557 } 3558 3559 static void bnxt_free_one_rx_agg_ring(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) 3560 { 3561 int i, max_idx; 3562 3563 max_idx = bp->rx_agg_nr_pages * RX_DESC_CNT; 3564 3565 for (i = 0; i < max_idx; i++) { 3566 struct bnxt_sw_rx_agg_bd *rx_agg_buf = &rxr->rx_agg_ring[i]; 3567 netmem_ref netmem = rx_agg_buf->netmem; 3568 3569 if (!netmem) 3570 continue; 3571 3572 rx_agg_buf->netmem = 0; 3573 __clear_bit(i, rxr->rx_agg_bmap); 3574 3575 page_pool_recycle_direct_netmem(rxr->page_pool, netmem); 3576 } 3577 } 3578 3579 static void bnxt_free_one_tpa_info_data(struct bnxt *bp, 3580 struct bnxt_rx_ring_info *rxr) 3581 { 3582 int i; 3583 3584 for (i = 0; i < bp->max_tpa; i++) { 3585 struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[i]; 3586 u8 *data = tpa_info->data; 3587 3588 if (!data) 3589 continue; 3590 3591 tpa_info->data = NULL; 3592 page_pool_free_va(rxr->head_pool, data, false); 3593 } 3594 } 3595 3596 static void bnxt_free_one_rx_ring_skbs(struct bnxt *bp, 3597 struct bnxt_rx_ring_info *rxr) 3598 { 3599 struct bnxt_tpa_idx_map *map; 3600 3601 if (!rxr->rx_tpa) 3602 goto skip_rx_tpa_free; 3603 3604 bnxt_free_one_tpa_info_data(bp, rxr); 3605 3606 skip_rx_tpa_free: 3607 if (!rxr->rx_buf_ring) 3608 goto skip_rx_buf_free; 3609 3610 bnxt_free_one_rx_ring(bp, rxr); 3611 3612 skip_rx_buf_free: 3613 if (!rxr->rx_agg_ring) 3614 goto skip_rx_agg_free; 3615 3616 bnxt_free_one_rx_agg_ring(bp, rxr); 3617 3618 skip_rx_agg_free: 3619 map = rxr->rx_tpa_idx_map; 3620 if (map) 3621 memset(map->agg_idx_bmap, 0, sizeof(map->agg_idx_bmap)); 3622 } 3623 3624 static void bnxt_free_rx_skbs(struct bnxt *bp) 3625 { 3626 int i; 3627 3628 if (!bp->rx_ring) 3629 return; 3630 3631 for (i = 0; i < bp->rx_nr_rings; i++) 3632 bnxt_free_one_rx_ring_skbs(bp, &bp->rx_ring[i]); 3633 } 3634 3635 static void bnxt_free_skbs(struct bnxt *bp) 3636 { 3637 bnxt_free_tx_skbs(bp); 3638 bnxt_free_rx_skbs(bp); 3639 } 3640 3641 static void bnxt_init_ctx_mem(struct bnxt_ctx_mem_type *ctxm, void *p, int len) 3642 { 3643 u8 init_val = ctxm->init_value; 3644 u16 offset = ctxm->init_offset; 3645 u8 *p2 = p; 3646 int i; 3647 3648 if (!init_val) 3649 return; 3650 if (offset == BNXT_CTX_INIT_INVALID_OFFSET) { 3651 memset(p, init_val, len); 3652 return; 3653 } 3654 for (i = 0; i < len; i += ctxm->entry_size) 3655 *(p2 + i + offset) = init_val; 3656 } 3657 3658 static size_t __bnxt_copy_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem, 3659 void *buf, size_t offset, size_t head, 3660 size_t tail) 3661 { 3662 int i, head_page, start_idx, source_offset; 3663 size_t len, rem_len, total_len, max_bytes; 3664 3665 head_page = head / rmem->page_size; 3666 source_offset = head % rmem->page_size; 3667 total_len = (tail - head) & MAX_CTX_BYTES_MASK; 3668 if (!total_len) 3669 total_len = MAX_CTX_BYTES; 3670 start_idx = head_page % MAX_CTX_PAGES; 3671 max_bytes = (rmem->nr_pages - start_idx) * rmem->page_size - 3672 source_offset; 3673 total_len = min(total_len, max_bytes); 3674 rem_len = total_len; 3675 3676 for (i = start_idx; rem_len; i++, source_offset = 0) { 3677 len = min((size_t)(rmem->page_size - source_offset), rem_len); 3678 if (buf) 3679 memcpy(buf + offset, rmem->pg_arr[i] + source_offset, 3680 len); 3681 offset += len; 3682 rem_len -= len; 3683 } 3684 return total_len; 3685 } 3686 3687 static void bnxt_free_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem) 3688 { 3689 struct pci_dev *pdev = bp->pdev; 3690 int i; 3691 3692 if (!rmem->pg_arr) 3693 goto skip_pages; 3694 3695 for (i = 0; i < rmem->nr_pages; i++) { 3696 if (!rmem->pg_arr[i]) 3697 continue; 3698 3699 dma_free_coherent(&pdev->dev, rmem->page_size, 3700 rmem->pg_arr[i], rmem->dma_arr[i]); 3701 3702 rmem->pg_arr[i] = NULL; 3703 } 3704 skip_pages: 3705 if (rmem->pg_tbl) { 3706 size_t pg_tbl_size = rmem->nr_pages * 8; 3707 3708 if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG) 3709 pg_tbl_size = rmem->page_size; 3710 dma_free_coherent(&pdev->dev, pg_tbl_size, 3711 rmem->pg_tbl, rmem->pg_tbl_map); 3712 rmem->pg_tbl = NULL; 3713 } 3714 if (rmem->vmem_size && *rmem->vmem) { 3715 vfree(*rmem->vmem); 3716 *rmem->vmem = NULL; 3717 } 3718 } 3719 3720 static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem) 3721 { 3722 struct pci_dev *pdev = bp->pdev; 3723 u64 valid_bit = 0; 3724 int i; 3725 3726 if (rmem->flags & (BNXT_RMEM_VALID_PTE_FLAG | BNXT_RMEM_RING_PTE_FLAG)) 3727 valid_bit = PTU_PTE_VALID; 3728 if ((rmem->nr_pages > 1 || rmem->depth > 0) && !rmem->pg_tbl) { 3729 size_t pg_tbl_size = rmem->nr_pages * 8; 3730 3731 if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG) 3732 pg_tbl_size = rmem->page_size; 3733 rmem->pg_tbl = dma_alloc_coherent(&pdev->dev, pg_tbl_size, 3734 &rmem->pg_tbl_map, 3735 GFP_KERNEL); 3736 if (!rmem->pg_tbl) 3737 return -ENOMEM; 3738 } 3739 3740 for (i = 0; i < rmem->nr_pages; i++) { 3741 u64 extra_bits = valid_bit; 3742 3743 rmem->pg_arr[i] = dma_alloc_coherent(&pdev->dev, 3744 rmem->page_size, 3745 &rmem->dma_arr[i], 3746 GFP_KERNEL); 3747 if (!rmem->pg_arr[i]) 3748 return -ENOMEM; 3749 3750 if (rmem->ctx_mem) 3751 bnxt_init_ctx_mem(rmem->ctx_mem, rmem->pg_arr[i], 3752 rmem->page_size); 3753 if (rmem->nr_pages > 1 || rmem->depth > 0) { 3754 if (i == rmem->nr_pages - 2 && 3755 (rmem->flags & BNXT_RMEM_RING_PTE_FLAG)) 3756 extra_bits |= PTU_PTE_NEXT_TO_LAST; 3757 else if (i == rmem->nr_pages - 1 && 3758 (rmem->flags & BNXT_RMEM_RING_PTE_FLAG)) 3759 extra_bits |= PTU_PTE_LAST; 3760 rmem->pg_tbl[i] = 3761 cpu_to_le64(rmem->dma_arr[i] | extra_bits); 3762 } 3763 } 3764 3765 if (rmem->vmem_size) { 3766 *rmem->vmem = vzalloc(rmem->vmem_size); 3767 if (!(*rmem->vmem)) 3768 return -ENOMEM; 3769 } 3770 return 0; 3771 } 3772 3773 static void bnxt_free_one_tpa_info(struct bnxt *bp, 3774 struct bnxt_rx_ring_info *rxr) 3775 { 3776 int i; 3777 3778 kfree(rxr->rx_tpa_idx_map); 3779 rxr->rx_tpa_idx_map = NULL; 3780 if (rxr->rx_tpa) { 3781 for (i = 0; i < bp->max_tpa; i++) { 3782 kfree(rxr->rx_tpa[i].agg_arr); 3783 rxr->rx_tpa[i].agg_arr = NULL; 3784 } 3785 } 3786 kfree(rxr->rx_tpa); 3787 rxr->rx_tpa = NULL; 3788 } 3789 3790 static void bnxt_free_tpa_info(struct bnxt *bp) 3791 { 3792 int i; 3793 3794 for (i = 0; i < bp->rx_nr_rings; i++) { 3795 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 3796 3797 bnxt_free_one_tpa_info(bp, rxr); 3798 } 3799 } 3800 3801 static int bnxt_alloc_one_tpa_info(struct bnxt *bp, 3802 struct bnxt_rx_ring_info *rxr) 3803 { 3804 struct rx_agg_cmp *agg; 3805 int i; 3806 3807 rxr->rx_tpa = kzalloc_objs(struct bnxt_tpa_info, bp->max_tpa); 3808 if (!rxr->rx_tpa) 3809 return -ENOMEM; 3810 3811 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 3812 return 0; 3813 for (i = 0; i < bp->max_tpa; i++) { 3814 agg = kzalloc_objs(*agg, MAX_SKB_FRAGS); 3815 if (!agg) 3816 return -ENOMEM; 3817 rxr->rx_tpa[i].agg_arr = agg; 3818 } 3819 rxr->rx_tpa_idx_map = kzalloc_obj(*rxr->rx_tpa_idx_map); 3820 if (!rxr->rx_tpa_idx_map) 3821 return -ENOMEM; 3822 3823 return 0; 3824 } 3825 3826 static int bnxt_alloc_tpa_info(struct bnxt *bp) 3827 { 3828 int i, rc; 3829 3830 bp->max_tpa = MAX_TPA; 3831 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 3832 if (!bp->max_tpa_v2) 3833 return 0; 3834 bp->max_tpa = min_t(u16, bp->max_tpa_v2, MAX_TPA_P5); 3835 /* Older P5 FW sets max_tpa_v2 low by mistake except NPAR */ 3836 if (bp->max_tpa <= 32 && BNXT_CHIP_P5(bp) && !BNXT_NPAR(bp)) 3837 bp->max_tpa = MAX_TPA_P5; 3838 } 3839 3840 for (i = 0; i < bp->rx_nr_rings; i++) { 3841 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 3842 3843 rc = bnxt_alloc_one_tpa_info(bp, rxr); 3844 if (rc) 3845 return rc; 3846 } 3847 return 0; 3848 } 3849 3850 static void bnxt_free_rx_rings(struct bnxt *bp) 3851 { 3852 int i; 3853 3854 if (!bp->rx_ring) 3855 return; 3856 3857 bnxt_free_tpa_info(bp); 3858 for (i = 0; i < bp->rx_nr_rings; i++) { 3859 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 3860 struct bnxt_ring_struct *ring; 3861 3862 if (rxr->xdp_prog) 3863 bpf_prog_put(rxr->xdp_prog); 3864 3865 if (xdp_rxq_info_is_reg(&rxr->xdp_rxq)) 3866 xdp_rxq_info_unreg(&rxr->xdp_rxq); 3867 3868 page_pool_destroy(rxr->page_pool); 3869 page_pool_destroy(rxr->head_pool); 3870 rxr->page_pool = rxr->head_pool = NULL; 3871 3872 kfree(rxr->rx_agg_bmap); 3873 rxr->rx_agg_bmap = NULL; 3874 3875 ring = &rxr->rx_ring_struct; 3876 bnxt_free_ring(bp, &ring->ring_mem); 3877 3878 ring = &rxr->rx_agg_ring_struct; 3879 bnxt_free_ring(bp, &ring->ring_mem); 3880 } 3881 } 3882 3883 static int bnxt_rx_agg_ring_fill_level(struct bnxt *bp, 3884 struct bnxt_rx_ring_info *rxr) 3885 { 3886 /* User may have chosen larger than default rx_page_size, 3887 * we keep the ring sizes uniform and also want uniform amount 3888 * of bytes consumed per ring, so cap how much of the rings we fill. 3889 */ 3890 int fill_level = bp->rx_agg_ring_size; 3891 3892 if (rxr->rx_page_size > BNXT_RX_PAGE_SIZE) 3893 fill_level /= rxr->rx_page_size / BNXT_RX_PAGE_SIZE; 3894 3895 return fill_level; 3896 } 3897 3898 static int bnxt_alloc_rx_page_pool(struct bnxt *bp, 3899 struct bnxt_rx_ring_info *rxr, 3900 int numa_node) 3901 { 3902 unsigned int agg_size_fac = rxr->rx_page_size / BNXT_RX_PAGE_SIZE; 3903 const unsigned int rx_size_fac = PAGE_SIZE / SZ_4K; 3904 struct page_pool_params pp = { 0 }; 3905 struct page_pool *pool; 3906 3907 pp.pool_size = bnxt_rx_agg_ring_fill_level(bp, rxr) / agg_size_fac; 3908 if (BNXT_RX_PAGE_MODE(bp)) 3909 pp.pool_size += bp->rx_ring_size / rx_size_fac; 3910 3911 pp.order = get_order(rxr->rx_page_size); 3912 pp.nid = numa_node; 3913 pp.netdev = bp->dev; 3914 pp.dev = &bp->pdev->dev; 3915 pp.dma_dir = bp->rx_dir; 3916 pp.max_len = PAGE_SIZE << pp.order; 3917 pp.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV | 3918 PP_FLAG_ALLOW_UNREADABLE_NETMEM; 3919 pp.queue_idx = rxr->bnapi->index; 3920 3921 pool = page_pool_create(&pp); 3922 if (IS_ERR(pool)) 3923 return PTR_ERR(pool); 3924 rxr->page_pool = pool; 3925 3926 rxr->need_head_pool = page_pool_is_unreadable(pool); 3927 rxr->need_head_pool |= !!pp.order; 3928 if (bnxt_separate_head_pool(rxr)) { 3929 pp.order = 0; 3930 pp.max_len = PAGE_SIZE; 3931 pp.pool_size = min(bp->rx_ring_size / rx_size_fac, 1024); 3932 pp.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV; 3933 pool = page_pool_create(&pp); 3934 if (IS_ERR(pool)) 3935 goto err_destroy_pp; 3936 } else { 3937 page_pool_get(pool); 3938 } 3939 rxr->head_pool = pool; 3940 3941 return 0; 3942 3943 err_destroy_pp: 3944 page_pool_destroy(rxr->page_pool); 3945 rxr->page_pool = NULL; 3946 return PTR_ERR(pool); 3947 } 3948 3949 static void bnxt_enable_rx_page_pool(struct bnxt_rx_ring_info *rxr) 3950 { 3951 page_pool_enable_direct_recycling(rxr->head_pool, &rxr->bnapi->napi); 3952 page_pool_enable_direct_recycling(rxr->page_pool, &rxr->bnapi->napi); 3953 } 3954 3955 static int bnxt_alloc_rx_agg_bmap(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) 3956 { 3957 u16 mem_size; 3958 3959 rxr->rx_agg_bmap_size = bp->rx_agg_ring_mask + 1; 3960 mem_size = rxr->rx_agg_bmap_size / 8; 3961 rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL); 3962 if (!rxr->rx_agg_bmap) 3963 return -ENOMEM; 3964 3965 return 0; 3966 } 3967 3968 static int bnxt_alloc_rx_rings(struct bnxt *bp) 3969 { 3970 int numa_node = dev_to_node(&bp->pdev->dev); 3971 int i, rc = 0, agg_rings = 0, cpu; 3972 3973 if (!bp->rx_ring) 3974 return -ENOMEM; 3975 3976 if (bp->flags & BNXT_FLAG_AGG_RINGS) 3977 agg_rings = 1; 3978 3979 for (i = 0; i < bp->rx_nr_rings; i++) { 3980 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 3981 struct bnxt_ring_struct *ring; 3982 int cpu_node; 3983 3984 ring = &rxr->rx_ring_struct; 3985 3986 cpu = cpumask_local_spread(i, numa_node); 3987 cpu_node = cpu_to_node(cpu); 3988 netdev_dbg(bp->dev, "Allocating page pool for rx_ring[%d] on numa_node: %d\n", 3989 i, cpu_node); 3990 rc = bnxt_alloc_rx_page_pool(bp, rxr, cpu_node); 3991 if (rc) 3992 return rc; 3993 bnxt_enable_rx_page_pool(rxr); 3994 3995 rc = xdp_rxq_info_reg(&rxr->xdp_rxq, bp->dev, i, 0); 3996 if (rc < 0) 3997 return rc; 3998 3999 rc = xdp_rxq_info_reg_mem_model(&rxr->xdp_rxq, 4000 MEM_TYPE_PAGE_POOL, 4001 rxr->page_pool); 4002 if (rc) { 4003 xdp_rxq_info_unreg(&rxr->xdp_rxq); 4004 return rc; 4005 } 4006 4007 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 4008 if (rc) 4009 return rc; 4010 4011 ring->grp_idx = i; 4012 if (agg_rings) { 4013 ring = &rxr->rx_agg_ring_struct; 4014 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 4015 if (rc) 4016 return rc; 4017 4018 ring->grp_idx = i; 4019 rc = bnxt_alloc_rx_agg_bmap(bp, rxr); 4020 if (rc) 4021 return rc; 4022 } 4023 } 4024 if (bp->flags & BNXT_FLAG_TPA) 4025 rc = bnxt_alloc_tpa_info(bp); 4026 return rc; 4027 } 4028 4029 static void bnxt_free_tx_inline_buf(struct bnxt_tx_ring_info *txr, 4030 struct pci_dev *pdev) 4031 { 4032 if (!txr->tx_inline_buf) 4033 return; 4034 4035 dma_unmap_single(&pdev->dev, txr->tx_inline_dma, 4036 txr->tx_inline_size, DMA_TO_DEVICE); 4037 kfree(txr->tx_inline_buf); 4038 txr->tx_inline_buf = NULL; 4039 txr->tx_inline_size = 0; 4040 } 4041 4042 static int bnxt_alloc_tx_inline_buf(struct bnxt_tx_ring_info *txr, 4043 struct pci_dev *pdev, 4044 unsigned int size) 4045 { 4046 txr->tx_inline_buf = kmalloc(size, GFP_KERNEL); 4047 if (!txr->tx_inline_buf) 4048 return -ENOMEM; 4049 4050 txr->tx_inline_dma = dma_map_single(&pdev->dev, txr->tx_inline_buf, 4051 size, DMA_TO_DEVICE); 4052 if (dma_mapping_error(&pdev->dev, txr->tx_inline_dma)) { 4053 kfree(txr->tx_inline_buf); 4054 txr->tx_inline_buf = NULL; 4055 return -ENOMEM; 4056 } 4057 txr->tx_inline_size = size; 4058 4059 return 0; 4060 } 4061 4062 static void bnxt_free_tx_rings(struct bnxt *bp) 4063 { 4064 int i; 4065 struct pci_dev *pdev = bp->pdev; 4066 4067 if (!bp->tx_ring) 4068 return; 4069 4070 for (i = 0; i < bp->tx_nr_rings; i++) { 4071 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 4072 struct bnxt_ring_struct *ring; 4073 4074 if (txr->tx_push) { 4075 dma_free_coherent(&pdev->dev, bp->tx_push_size, 4076 txr->tx_push, txr->tx_push_mapping); 4077 txr->tx_push = NULL; 4078 } 4079 4080 bnxt_free_tx_inline_buf(txr, pdev); 4081 4082 ring = &txr->tx_ring_struct; 4083 4084 bnxt_free_ring(bp, &ring->ring_mem); 4085 } 4086 } 4087 4088 #define BNXT_TC_TO_RING_BASE(bp, tc) \ 4089 ((tc) * (bp)->tx_nr_rings_per_tc) 4090 4091 #define BNXT_RING_TO_TC_OFF(bp, tx) \ 4092 ((tx) % (bp)->tx_nr_rings_per_tc) 4093 4094 #define BNXT_RING_TO_TC(bp, tx) \ 4095 ((tx) / (bp)->tx_nr_rings_per_tc) 4096 4097 static int bnxt_alloc_tx_rings(struct bnxt *bp) 4098 { 4099 int i, j, rc; 4100 struct pci_dev *pdev = bp->pdev; 4101 4102 bp->tx_push_size = 0; 4103 if (bp->tx_push_thresh) { 4104 int push_size; 4105 4106 push_size = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) + 4107 bp->tx_push_thresh); 4108 4109 if (push_size > 256) { 4110 push_size = 0; 4111 bp->tx_push_thresh = 0; 4112 } 4113 4114 bp->tx_push_size = push_size; 4115 } 4116 4117 for (i = 0, j = 0; i < bp->tx_nr_rings; i++) { 4118 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 4119 struct bnxt_ring_struct *ring; 4120 u8 qidx; 4121 4122 ring = &txr->tx_ring_struct; 4123 4124 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 4125 if (rc) 4126 return rc; 4127 4128 ring->grp_idx = txr->bnapi->index; 4129 if (bp->tx_push_size) { 4130 dma_addr_t mapping; 4131 4132 /* One pre-allocated DMA buffer to backup 4133 * TX push operation 4134 */ 4135 txr->tx_push = dma_alloc_coherent(&pdev->dev, 4136 bp->tx_push_size, 4137 &txr->tx_push_mapping, 4138 GFP_KERNEL); 4139 4140 if (!txr->tx_push) 4141 return -ENOMEM; 4142 4143 mapping = txr->tx_push_mapping + 4144 sizeof(struct tx_push_bd); 4145 txr->data_mapping = cpu_to_le64(mapping); 4146 } 4147 if (!(bp->flags & BNXT_FLAG_UDP_GSO_CAP)) { 4148 rc = bnxt_alloc_tx_inline_buf(txr, pdev, 4149 BNXT_SW_USO_MAX_SEGS * 4150 TSO_HEADER_SIZE); 4151 if (rc) 4152 return rc; 4153 } 4154 qidx = bp->tc_to_qidx[j]; 4155 ring->queue_id = bp->q_info[qidx].queue_id; 4156 spin_lock_init(&txr->xdp_tx_lock); 4157 if (i < bp->tx_nr_rings_xdp) 4158 continue; 4159 if (BNXT_RING_TO_TC_OFF(bp, i) == (bp->tx_nr_rings_per_tc - 1)) 4160 j++; 4161 } 4162 return 0; 4163 } 4164 4165 static void bnxt_free_cp_arrays(struct bnxt_cp_ring_info *cpr) 4166 { 4167 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 4168 4169 kfree(cpr->cp_desc_ring); 4170 cpr->cp_desc_ring = NULL; 4171 ring->ring_mem.pg_arr = NULL; 4172 kfree(cpr->cp_desc_mapping); 4173 cpr->cp_desc_mapping = NULL; 4174 ring->ring_mem.dma_arr = NULL; 4175 } 4176 4177 static int bnxt_alloc_cp_arrays(struct bnxt_cp_ring_info *cpr, int n) 4178 { 4179 cpr->cp_desc_ring = kzalloc_objs(*cpr->cp_desc_ring, n); 4180 if (!cpr->cp_desc_ring) 4181 return -ENOMEM; 4182 cpr->cp_desc_mapping = kzalloc_objs(*cpr->cp_desc_mapping, n); 4183 if (!cpr->cp_desc_mapping) 4184 return -ENOMEM; 4185 return 0; 4186 } 4187 4188 static void bnxt_free_all_cp_arrays(struct bnxt *bp) 4189 { 4190 int i; 4191 4192 if (!bp->bnapi) 4193 return; 4194 for (i = 0; i < bp->cp_nr_rings; i++) { 4195 struct bnxt_napi *bnapi = bp->bnapi[i]; 4196 4197 if (!bnapi) 4198 continue; 4199 bnxt_free_cp_arrays(&bnapi->cp_ring); 4200 } 4201 } 4202 4203 static int bnxt_alloc_all_cp_arrays(struct bnxt *bp) 4204 { 4205 int i, n = bp->cp_nr_pages; 4206 4207 for (i = 0; i < bp->cp_nr_rings; i++) { 4208 struct bnxt_napi *bnapi = bp->bnapi[i]; 4209 int rc; 4210 4211 if (!bnapi) 4212 continue; 4213 rc = bnxt_alloc_cp_arrays(&bnapi->cp_ring, n); 4214 if (rc) 4215 return rc; 4216 } 4217 return 0; 4218 } 4219 4220 static void bnxt_free_cp_rings(struct bnxt *bp) 4221 { 4222 int i; 4223 4224 if (!bp->bnapi) 4225 return; 4226 4227 for (i = 0; i < bp->cp_nr_rings; i++) { 4228 struct bnxt_napi *bnapi = bp->bnapi[i]; 4229 struct bnxt_cp_ring_info *cpr; 4230 struct bnxt_ring_struct *ring; 4231 int j; 4232 4233 if (!bnapi) 4234 continue; 4235 4236 cpr = &bnapi->cp_ring; 4237 ring = &cpr->cp_ring_struct; 4238 4239 bnxt_free_ring(bp, &ring->ring_mem); 4240 4241 if (!cpr->cp_ring_arr) 4242 continue; 4243 4244 for (j = 0; j < cpr->cp_ring_count; j++) { 4245 struct bnxt_cp_ring_info *cpr2 = &cpr->cp_ring_arr[j]; 4246 4247 ring = &cpr2->cp_ring_struct; 4248 bnxt_free_ring(bp, &ring->ring_mem); 4249 bnxt_free_cp_arrays(cpr2); 4250 } 4251 kfree(cpr->cp_ring_arr); 4252 cpr->cp_ring_arr = NULL; 4253 cpr->cp_ring_count = 0; 4254 } 4255 } 4256 4257 static int bnxt_alloc_cp_sub_ring(struct bnxt *bp, 4258 struct bnxt_cp_ring_info *cpr) 4259 { 4260 struct bnxt_ring_mem_info *rmem; 4261 struct bnxt_ring_struct *ring; 4262 int rc; 4263 4264 rc = bnxt_alloc_cp_arrays(cpr, bp->cp_nr_pages); 4265 if (rc) { 4266 bnxt_free_cp_arrays(cpr); 4267 return -ENOMEM; 4268 } 4269 ring = &cpr->cp_ring_struct; 4270 rmem = &ring->ring_mem; 4271 rmem->nr_pages = bp->cp_nr_pages; 4272 rmem->page_size = HW_CMPD_RING_SIZE; 4273 rmem->pg_arr = (void **)cpr->cp_desc_ring; 4274 rmem->dma_arr = cpr->cp_desc_mapping; 4275 rmem->flags = BNXT_RMEM_RING_PTE_FLAG; 4276 rc = bnxt_alloc_ring(bp, rmem); 4277 if (rc) { 4278 bnxt_free_ring(bp, rmem); 4279 bnxt_free_cp_arrays(cpr); 4280 } 4281 return rc; 4282 } 4283 4284 static int bnxt_alloc_cp_rings(struct bnxt *bp) 4285 { 4286 bool sh = !!(bp->flags & BNXT_FLAG_SHARED_RINGS); 4287 int i, j, rc, ulp_msix; 4288 int tcs = bp->num_tc; 4289 4290 if (!tcs) 4291 tcs = 1; 4292 ulp_msix = bnxt_get_ulp_msix_num(bp); 4293 for (i = 0, j = 0; i < bp->cp_nr_rings; i++) { 4294 struct bnxt_napi *bnapi = bp->bnapi[i]; 4295 struct bnxt_cp_ring_info *cpr, *cpr2; 4296 struct bnxt_ring_struct *ring; 4297 int cp_count = 0, k; 4298 int rx = 0, tx = 0; 4299 4300 if (!bnapi) 4301 continue; 4302 4303 cpr = &bnapi->cp_ring; 4304 cpr->bnapi = bnapi; 4305 ring = &cpr->cp_ring_struct; 4306 4307 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 4308 if (rc) 4309 return rc; 4310 4311 ring->map_idx = ulp_msix + i; 4312 4313 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 4314 continue; 4315 4316 if (i < bp->rx_nr_rings) { 4317 cp_count++; 4318 rx = 1; 4319 } 4320 if (i < bp->tx_nr_rings_xdp) { 4321 cp_count++; 4322 tx = 1; 4323 } else if ((sh && i < bp->tx_nr_rings) || 4324 (!sh && i >= bp->rx_nr_rings)) { 4325 cp_count += tcs; 4326 tx = 1; 4327 } 4328 4329 cpr->cp_ring_arr = kzalloc_objs(*cpr, cp_count); 4330 if (!cpr->cp_ring_arr) 4331 return -ENOMEM; 4332 cpr->cp_ring_count = cp_count; 4333 4334 for (k = 0; k < cp_count; k++) { 4335 cpr2 = &cpr->cp_ring_arr[k]; 4336 rc = bnxt_alloc_cp_sub_ring(bp, cpr2); 4337 if (rc) 4338 return rc; 4339 cpr2->bnapi = bnapi; 4340 cpr2->sw_stats = cpr->sw_stats; 4341 cpr2->cp_idx = k; 4342 if (!k && rx) { 4343 bp->rx_ring[i].rx_cpr = cpr2; 4344 cpr2->cp_ring_type = BNXT_NQ_HDL_TYPE_RX; 4345 } else { 4346 int n, tc = k - rx; 4347 4348 n = BNXT_TC_TO_RING_BASE(bp, tc) + j; 4349 bp->tx_ring[n].tx_cpr = cpr2; 4350 cpr2->cp_ring_type = BNXT_NQ_HDL_TYPE_TX; 4351 } 4352 } 4353 if (tx) 4354 j++; 4355 } 4356 return 0; 4357 } 4358 4359 static void bnxt_init_rx_ring_struct(struct bnxt *bp, 4360 struct bnxt_rx_ring_info *rxr) 4361 { 4362 struct bnxt_ring_mem_info *rmem; 4363 struct bnxt_ring_struct *ring; 4364 4365 ring = &rxr->rx_ring_struct; 4366 rmem = &ring->ring_mem; 4367 rmem->nr_pages = bp->rx_nr_pages; 4368 rmem->page_size = HW_RXBD_RING_SIZE; 4369 rmem->pg_arr = (void **)rxr->rx_desc_ring; 4370 rmem->dma_arr = rxr->rx_desc_mapping; 4371 rmem->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages; 4372 rmem->vmem = (void **)&rxr->rx_buf_ring; 4373 4374 ring = &rxr->rx_agg_ring_struct; 4375 rmem = &ring->ring_mem; 4376 rmem->nr_pages = bp->rx_agg_nr_pages; 4377 rmem->page_size = HW_RXBD_RING_SIZE; 4378 rmem->pg_arr = (void **)rxr->rx_agg_desc_ring; 4379 rmem->dma_arr = rxr->rx_agg_desc_mapping; 4380 rmem->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages; 4381 rmem->vmem = (void **)&rxr->rx_agg_ring; 4382 } 4383 4384 static void bnxt_reset_rx_ring_struct(struct bnxt *bp, 4385 struct bnxt_rx_ring_info *rxr) 4386 { 4387 struct bnxt_ring_mem_info *rmem; 4388 struct bnxt_ring_struct *ring; 4389 int i; 4390 4391 rxr->page_pool->p.napi = NULL; 4392 rxr->page_pool = NULL; 4393 rxr->head_pool->p.napi = NULL; 4394 rxr->head_pool = NULL; 4395 memset(&rxr->xdp_rxq, 0, sizeof(struct xdp_rxq_info)); 4396 4397 ring = &rxr->rx_ring_struct; 4398 rmem = &ring->ring_mem; 4399 rmem->pg_tbl = NULL; 4400 rmem->pg_tbl_map = 0; 4401 for (i = 0; i < rmem->nr_pages; i++) { 4402 rmem->pg_arr[i] = NULL; 4403 rmem->dma_arr[i] = 0; 4404 } 4405 *rmem->vmem = NULL; 4406 4407 ring = &rxr->rx_agg_ring_struct; 4408 rmem = &ring->ring_mem; 4409 rmem->pg_tbl = NULL; 4410 rmem->pg_tbl_map = 0; 4411 for (i = 0; i < rmem->nr_pages; i++) { 4412 rmem->pg_arr[i] = NULL; 4413 rmem->dma_arr[i] = 0; 4414 } 4415 *rmem->vmem = NULL; 4416 } 4417 4418 static void bnxt_init_ring_struct(struct bnxt *bp) 4419 { 4420 int i, j; 4421 4422 for (i = 0; i < bp->cp_nr_rings; i++) { 4423 struct bnxt_napi *bnapi = bp->bnapi[i]; 4424 struct netdev_queue_config qcfg; 4425 struct bnxt_ring_mem_info *rmem; 4426 struct bnxt_cp_ring_info *cpr; 4427 struct bnxt_rx_ring_info *rxr; 4428 struct bnxt_tx_ring_info *txr; 4429 struct bnxt_ring_struct *ring; 4430 4431 if (!bnapi) 4432 continue; 4433 4434 cpr = &bnapi->cp_ring; 4435 ring = &cpr->cp_ring_struct; 4436 rmem = &ring->ring_mem; 4437 rmem->nr_pages = bp->cp_nr_pages; 4438 rmem->page_size = HW_CMPD_RING_SIZE; 4439 rmem->pg_arr = (void **)cpr->cp_desc_ring; 4440 rmem->dma_arr = cpr->cp_desc_mapping; 4441 rmem->vmem_size = 0; 4442 4443 rxr = bnapi->rx_ring; 4444 if (!rxr) 4445 goto skip_rx; 4446 4447 netdev_queue_config(bp->dev, i, &qcfg); 4448 rxr->rx_page_size = qcfg.rx_page_size; 4449 4450 ring = &rxr->rx_ring_struct; 4451 rmem = &ring->ring_mem; 4452 rmem->nr_pages = bp->rx_nr_pages; 4453 rmem->page_size = HW_RXBD_RING_SIZE; 4454 rmem->pg_arr = (void **)rxr->rx_desc_ring; 4455 rmem->dma_arr = rxr->rx_desc_mapping; 4456 rmem->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages; 4457 rmem->vmem = (void **)&rxr->rx_buf_ring; 4458 4459 ring = &rxr->rx_agg_ring_struct; 4460 rmem = &ring->ring_mem; 4461 rmem->nr_pages = bp->rx_agg_nr_pages; 4462 rmem->page_size = HW_RXBD_RING_SIZE; 4463 rmem->pg_arr = (void **)rxr->rx_agg_desc_ring; 4464 rmem->dma_arr = rxr->rx_agg_desc_mapping; 4465 rmem->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages; 4466 rmem->vmem = (void **)&rxr->rx_agg_ring; 4467 4468 skip_rx: 4469 bnxt_for_each_napi_tx(j, bnapi, txr) { 4470 ring = &txr->tx_ring_struct; 4471 rmem = &ring->ring_mem; 4472 rmem->nr_pages = bp->tx_nr_pages; 4473 rmem->page_size = HW_TXBD_RING_SIZE; 4474 rmem->pg_arr = (void **)txr->tx_desc_ring; 4475 rmem->dma_arr = txr->tx_desc_mapping; 4476 rmem->vmem_size = SW_TXBD_RING_SIZE * bp->tx_nr_pages; 4477 rmem->vmem = (void **)&txr->tx_buf_ring; 4478 } 4479 } 4480 } 4481 4482 static void bnxt_init_rxbd_pages(struct bnxt_ring_struct *ring, u32 type) 4483 { 4484 int i; 4485 u32 prod; 4486 struct rx_bd **rx_buf_ring; 4487 4488 rx_buf_ring = (struct rx_bd **)ring->ring_mem.pg_arr; 4489 for (i = 0, prod = 0; i < ring->ring_mem.nr_pages; i++) { 4490 int j; 4491 struct rx_bd *rxbd; 4492 4493 rxbd = rx_buf_ring[i]; 4494 if (!rxbd) 4495 continue; 4496 4497 for (j = 0; j < RX_DESC_CNT; j++, rxbd++, prod++) { 4498 rxbd->rx_bd_len_flags_type = cpu_to_le32(type); 4499 rxbd->rx_bd_opaque = prod; 4500 } 4501 } 4502 } 4503 4504 static void bnxt_alloc_one_rx_ring_skb(struct bnxt *bp, 4505 struct bnxt_rx_ring_info *rxr, 4506 int ring_nr) 4507 { 4508 u32 prod; 4509 int i; 4510 4511 prod = rxr->rx_prod; 4512 for (i = 0; i < bp->rx_ring_size; i++) { 4513 if (bnxt_alloc_rx_data(bp, rxr, prod, GFP_KERNEL)) { 4514 netdev_warn(bp->dev, "init'ed rx ring %d with %d/%d skbs only\n", 4515 ring_nr, i, bp->rx_ring_size); 4516 break; 4517 } 4518 prod = NEXT_RX(prod); 4519 } 4520 rxr->rx_prod = prod; 4521 } 4522 4523 static void bnxt_alloc_one_rx_ring_netmem(struct bnxt *bp, 4524 struct bnxt_rx_ring_info *rxr, 4525 int ring_nr) 4526 { 4527 int fill_level, i; 4528 u32 prod; 4529 4530 fill_level = bnxt_rx_agg_ring_fill_level(bp, rxr); 4531 4532 prod = rxr->rx_agg_prod; 4533 for (i = 0; i < fill_level; i++) { 4534 if (bnxt_alloc_rx_netmem(bp, rxr, prod, GFP_KERNEL)) { 4535 netdev_warn(bp->dev, "init'ed rx ring %d with %d/%d pages only\n", 4536 ring_nr, i, bp->rx_agg_ring_size); 4537 break; 4538 } 4539 prod = NEXT_RX_AGG(prod); 4540 } 4541 rxr->rx_agg_prod = prod; 4542 } 4543 4544 static int bnxt_alloc_one_tpa_info_data(struct bnxt *bp, 4545 struct bnxt_rx_ring_info *rxr) 4546 { 4547 dma_addr_t mapping; 4548 u8 *data; 4549 int i; 4550 4551 for (i = 0; i < bp->max_tpa; i++) { 4552 data = __bnxt_alloc_rx_frag(bp, &mapping, rxr, 4553 GFP_KERNEL); 4554 if (!data) 4555 return -ENOMEM; 4556 4557 rxr->rx_tpa[i].data = data; 4558 rxr->rx_tpa[i].data_ptr = data + bp->rx_offset; 4559 rxr->rx_tpa[i].mapping = mapping; 4560 } 4561 4562 return 0; 4563 } 4564 4565 static int bnxt_alloc_one_rx_ring(struct bnxt *bp, int ring_nr) 4566 { 4567 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr]; 4568 int rc; 4569 4570 bnxt_alloc_one_rx_ring_skb(bp, rxr, ring_nr); 4571 4572 if (!(bp->flags & BNXT_FLAG_AGG_RINGS)) 4573 return 0; 4574 4575 bnxt_alloc_one_rx_ring_netmem(bp, rxr, ring_nr); 4576 4577 if (rxr->rx_tpa) { 4578 rc = bnxt_alloc_one_tpa_info_data(bp, rxr); 4579 if (rc) 4580 return rc; 4581 } 4582 return 0; 4583 } 4584 4585 static void bnxt_init_one_rx_ring_rxbd(struct bnxt *bp, 4586 struct bnxt_rx_ring_info *rxr) 4587 { 4588 struct bnxt_ring_struct *ring; 4589 u32 type; 4590 4591 type = (bp->rx_buf_use_size << RX_BD_LEN_SHIFT) | 4592 RX_BD_TYPE_RX_PACKET_BD | RX_BD_FLAGS_EOP; 4593 4594 if (NET_IP_ALIGN == 2) 4595 type |= RX_BD_FLAGS_SOP; 4596 4597 ring = &rxr->rx_ring_struct; 4598 bnxt_init_rxbd_pages(ring, type); 4599 ring->fw_ring_id = INVALID_HW_RING_ID; 4600 } 4601 4602 static void bnxt_init_one_rx_agg_ring_rxbd(struct bnxt *bp, 4603 struct bnxt_rx_ring_info *rxr) 4604 { 4605 struct bnxt_ring_struct *ring; 4606 u32 type; 4607 4608 ring = &rxr->rx_agg_ring_struct; 4609 ring->fw_ring_id = INVALID_HW_RING_ID; 4610 if ((bp->flags & BNXT_FLAG_AGG_RINGS)) { 4611 type = ((u32)rxr->rx_page_size << RX_BD_LEN_SHIFT) | 4612 RX_BD_TYPE_RX_AGG_BD; 4613 4614 /* On P7, setting EOP will cause the chip to disable 4615 * Relaxed Ordering (RO) for TPA data. Disable EOP for 4616 * potentially higher performance with RO. 4617 */ 4618 if (BNXT_CHIP_P5_AND_MINUS(bp) || !(bp->flags & BNXT_FLAG_TPA)) 4619 type |= RX_BD_FLAGS_AGG_EOP; 4620 4621 bnxt_init_rxbd_pages(ring, type); 4622 } 4623 } 4624 4625 static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr) 4626 { 4627 struct bnxt_rx_ring_info *rxr; 4628 4629 rxr = &bp->rx_ring[ring_nr]; 4630 bnxt_init_one_rx_ring_rxbd(bp, rxr); 4631 4632 netif_queue_set_napi(bp->dev, ring_nr, NETDEV_QUEUE_TYPE_RX, 4633 &rxr->bnapi->napi); 4634 4635 if (BNXT_RX_PAGE_MODE(bp) && bp->xdp_prog) { 4636 bpf_prog_add(bp->xdp_prog, 1); 4637 rxr->xdp_prog = bp->xdp_prog; 4638 } 4639 4640 bnxt_init_one_rx_agg_ring_rxbd(bp, rxr); 4641 4642 return bnxt_alloc_one_rx_ring(bp, ring_nr); 4643 } 4644 4645 static void bnxt_init_cp_rings(struct bnxt *bp) 4646 { 4647 int i, j; 4648 4649 for (i = 0; i < bp->cp_nr_rings; i++) { 4650 struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring; 4651 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 4652 4653 ring->fw_ring_id = INVALID_HW_RING_ID; 4654 cpr->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks; 4655 cpr->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs; 4656 if (!cpr->cp_ring_arr) 4657 continue; 4658 for (j = 0; j < cpr->cp_ring_count; j++) { 4659 struct bnxt_cp_ring_info *cpr2 = &cpr->cp_ring_arr[j]; 4660 4661 ring = &cpr2->cp_ring_struct; 4662 ring->fw_ring_id = INVALID_HW_RING_ID; 4663 cpr2->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks; 4664 cpr2->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs; 4665 } 4666 } 4667 } 4668 4669 static int bnxt_init_rx_rings(struct bnxt *bp) 4670 { 4671 int i, rc = 0; 4672 4673 if (BNXT_RX_PAGE_MODE(bp)) { 4674 bp->rx_offset = NET_IP_ALIGN + XDP_PACKET_HEADROOM; 4675 bp->rx_dma_offset = XDP_PACKET_HEADROOM; 4676 } else { 4677 bp->rx_offset = BNXT_RX_OFFSET; 4678 bp->rx_dma_offset = BNXT_RX_DMA_OFFSET; 4679 } 4680 4681 for (i = 0; i < bp->rx_nr_rings; i++) { 4682 rc = bnxt_init_one_rx_ring(bp, i); 4683 if (rc) 4684 break; 4685 } 4686 4687 return rc; 4688 } 4689 4690 static int bnxt_init_tx_rings(struct bnxt *bp) 4691 { 4692 netdev_features_t features; 4693 u16 i; 4694 4695 features = bp->dev->features; 4696 4697 bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2, 4698 bnxt_min_tx_desc_cnt(bp, features)); 4699 4700 for (i = 0; i < bp->tx_nr_rings; i++) { 4701 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 4702 struct bnxt_ring_struct *ring = &txr->tx_ring_struct; 4703 4704 ring->fw_ring_id = INVALID_HW_RING_ID; 4705 4706 if (i >= bp->tx_nr_rings_xdp) 4707 netif_queue_set_napi(bp->dev, i - bp->tx_nr_rings_xdp, 4708 NETDEV_QUEUE_TYPE_TX, 4709 &txr->bnapi->napi); 4710 } 4711 4712 return 0; 4713 } 4714 4715 static void bnxt_free_ring_grps(struct bnxt *bp) 4716 { 4717 kfree(bp->grp_info); 4718 bp->grp_info = NULL; 4719 } 4720 4721 static int bnxt_init_ring_grps(struct bnxt *bp, bool irq_re_init) 4722 { 4723 int i; 4724 4725 if (irq_re_init) { 4726 bp->grp_info = kzalloc_objs(struct bnxt_ring_grp_info, 4727 bp->cp_nr_rings); 4728 if (!bp->grp_info) 4729 return -ENOMEM; 4730 } 4731 for (i = 0; i < bp->cp_nr_rings; i++) { 4732 if (irq_re_init) 4733 bp->grp_info[i].fw_stats_ctx = INVALID_HW_RING_ID; 4734 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID; 4735 bp->grp_info[i].rx_fw_ring_id = INVALID_HW_RING_ID; 4736 bp->grp_info[i].agg_fw_ring_id = INVALID_HW_RING_ID; 4737 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID; 4738 } 4739 return 0; 4740 } 4741 4742 static void bnxt_free_vnics(struct bnxt *bp) 4743 { 4744 kfree(bp->vnic_info); 4745 bp->vnic_info = NULL; 4746 bp->nr_vnics = 0; 4747 } 4748 4749 static int bnxt_alloc_vnics(struct bnxt *bp) 4750 { 4751 int num_vnics = 1; 4752 4753 #ifdef CONFIG_RFS_ACCEL 4754 if (bp->flags & BNXT_FLAG_RFS) { 4755 if (BNXT_SUPPORTS_NTUPLE_VNIC(bp)) 4756 num_vnics++; 4757 else if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 4758 num_vnics += bp->rx_nr_rings; 4759 } 4760 #endif 4761 4762 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 4763 num_vnics++; 4764 4765 bp->vnic_info = kzalloc_objs(struct bnxt_vnic_info, num_vnics); 4766 if (!bp->vnic_info) 4767 return -ENOMEM; 4768 4769 bp->nr_vnics = num_vnics; 4770 return 0; 4771 } 4772 4773 static void bnxt_init_vnics(struct bnxt *bp) 4774 { 4775 struct bnxt_vnic_info *vnic0 = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 4776 int i; 4777 4778 for (i = 0; i < bp->nr_vnics; i++) { 4779 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 4780 int j; 4781 4782 vnic->fw_vnic_id = INVALID_HW_RING_ID; 4783 vnic->vnic_id = i; 4784 for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) 4785 vnic->fw_rss_cos_lb_ctx[j] = INVALID_HW_RING_ID; 4786 4787 vnic->fw_l2_ctx_id = INVALID_HW_RING_ID; 4788 4789 if (bp->vnic_info[i].rss_hash_key) { 4790 if (i == BNXT_VNIC_DEFAULT) { 4791 u8 *key = (void *)vnic->rss_hash_key; 4792 int k; 4793 4794 if (!bp->rss_hash_key_valid && 4795 !bp->rss_hash_key_updated) { 4796 get_random_bytes(bp->rss_hash_key, 4797 HW_HASH_KEY_SIZE); 4798 bp->rss_hash_key_updated = true; 4799 } 4800 4801 memcpy(vnic->rss_hash_key, bp->rss_hash_key, 4802 HW_HASH_KEY_SIZE); 4803 4804 if (!bp->rss_hash_key_updated) 4805 continue; 4806 4807 bp->rss_hash_key_updated = false; 4808 bp->rss_hash_key_valid = true; 4809 4810 bp->toeplitz_prefix = 0; 4811 for (k = 0; k < 8; k++) { 4812 bp->toeplitz_prefix <<= 8; 4813 bp->toeplitz_prefix |= key[k]; 4814 } 4815 } else { 4816 memcpy(vnic->rss_hash_key, vnic0->rss_hash_key, 4817 HW_HASH_KEY_SIZE); 4818 } 4819 } 4820 } 4821 } 4822 4823 static int bnxt_calc_nr_ring_pages(u32 ring_size, int desc_per_pg) 4824 { 4825 int pages; 4826 4827 pages = ring_size / desc_per_pg; 4828 4829 if (!pages) 4830 return 1; 4831 4832 pages++; 4833 4834 while (pages & (pages - 1)) 4835 pages++; 4836 4837 return pages; 4838 } 4839 4840 void bnxt_set_tpa_flags(struct bnxt *bp) 4841 { 4842 bp->flags &= ~BNXT_FLAG_TPA; 4843 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS) 4844 return; 4845 if (bp->dev->features & NETIF_F_LRO) 4846 bp->flags |= BNXT_FLAG_LRO; 4847 else if (bp->dev->features & NETIF_F_GRO_HW) 4848 bp->flags |= BNXT_FLAG_GRO; 4849 } 4850 4851 static void bnxt_init_ring_params(struct bnxt *bp) 4852 { 4853 unsigned int rx_size; 4854 4855 bp->rx_copybreak = 0; /* rx-copybreak disabled by default */ 4856 /* Try to fit 4 chunks into a 4k page */ 4857 rx_size = SZ_1K - 4858 NET_SKB_PAD - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 4859 bp->dev->cfg->hds_thresh = max(BNXT_MIN_RX_HDR_BUF, rx_size); 4860 } 4861 4862 /* bp->rx_ring_size, bp->tx_ring_size, dev->mtu, BNXT_FLAG_{G|L}RO flags must 4863 * be set on entry. 4864 */ 4865 void bnxt_set_ring_params(struct bnxt *bp) 4866 { 4867 u32 ring_size, rx_size, rx_space, max_rx_cmpl; 4868 u32 agg_factor = 0, agg_ring_size = 0; 4869 4870 /* 8 for CRC and VLAN */ 4871 rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8); 4872 4873 rx_space = rx_size + ALIGN(max(NET_SKB_PAD, XDP_PACKET_HEADROOM), 8) + 4874 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 4875 4876 ring_size = bp->rx_ring_size; 4877 bp->rx_agg_ring_size = 0; 4878 bp->rx_agg_nr_pages = 0; 4879 4880 if (bp->flags & BNXT_FLAG_TPA || bp->flags & BNXT_FLAG_HDS) 4881 agg_factor = min_t(u32, 4, 65536 / BNXT_RX_PAGE_SIZE); 4882 4883 bp->flags &= ~BNXT_FLAG_JUMBO; 4884 if (rx_space > PAGE_SIZE && !(bp->flags & BNXT_FLAG_NO_AGG_RINGS)) { 4885 u32 jumbo_factor; 4886 4887 bp->flags |= BNXT_FLAG_JUMBO; 4888 jumbo_factor = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT; 4889 if (jumbo_factor > agg_factor) 4890 agg_factor = jumbo_factor; 4891 } 4892 if (agg_factor) { 4893 if (ring_size > BNXT_MAX_RX_DESC_CNT_JUM_ENA) { 4894 ring_size = BNXT_MAX_RX_DESC_CNT_JUM_ENA; 4895 netdev_warn(bp->dev, "RX ring size reduced from %d to %d because the jumbo ring is now enabled\n", 4896 bp->rx_ring_size, ring_size); 4897 bp->rx_ring_size = ring_size; 4898 } 4899 agg_ring_size = ring_size * agg_factor; 4900 4901 bp->rx_agg_nr_pages = bnxt_calc_nr_ring_pages(agg_ring_size, 4902 RX_DESC_CNT); 4903 if (bp->rx_agg_nr_pages > MAX_RX_AGG_PAGES) { 4904 u32 tmp = agg_ring_size; 4905 4906 bp->rx_agg_nr_pages = MAX_RX_AGG_PAGES; 4907 agg_ring_size = MAX_RX_AGG_PAGES * RX_DESC_CNT - 1; 4908 netdev_warn(bp->dev, "rx agg ring size %d reduced to %d.\n", 4909 tmp, agg_ring_size); 4910 } 4911 bp->rx_agg_ring_size = agg_ring_size; 4912 bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1; 4913 4914 if (BNXT_RX_PAGE_MODE(bp)) { 4915 rx_space = PAGE_SIZE; 4916 rx_size = PAGE_SIZE - 4917 ALIGN(max(NET_SKB_PAD, XDP_PACKET_HEADROOM), 8) - 4918 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 4919 } else { 4920 rx_size = max3(BNXT_MIN_RX_HDR_BUF, 4921 bp->rx_copybreak, 4922 bp->dev->cfg_pending->hds_thresh); 4923 rx_size = SKB_DATA_ALIGN(rx_size + NET_IP_ALIGN); 4924 rx_space = rx_size + NET_SKB_PAD + 4925 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 4926 } 4927 } 4928 4929 bp->rx_buf_use_size = rx_size; 4930 bp->rx_buf_size = rx_space; 4931 4932 bp->rx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, RX_DESC_CNT); 4933 bp->rx_ring_mask = (bp->rx_nr_pages * RX_DESC_CNT) - 1; 4934 4935 ring_size = bp->tx_ring_size; 4936 bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT); 4937 bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1; 4938 4939 max_rx_cmpl = bp->rx_ring_size; 4940 /* MAX TPA needs to be added because TPA_START completions are 4941 * immediately recycled, so the TPA completions are not bound by 4942 * the RX ring size. 4943 */ 4944 if (bp->flags & BNXT_FLAG_TPA) 4945 max_rx_cmpl += bp->max_tpa; 4946 /* RX and TPA completions are 32-byte, all others are 16-byte */ 4947 ring_size = max_rx_cmpl * 2 + agg_ring_size + bp->tx_ring_size; 4948 bp->cp_ring_size = ring_size; 4949 4950 bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT); 4951 if (bp->cp_nr_pages > MAX_CP_PAGES) { 4952 bp->cp_nr_pages = MAX_CP_PAGES; 4953 bp->cp_ring_size = MAX_CP_PAGES * CP_DESC_CNT - 1; 4954 netdev_warn(bp->dev, "completion ring size %d reduced to %d.\n", 4955 ring_size, bp->cp_ring_size); 4956 } 4957 bp->cp_bit = bp->cp_nr_pages * CP_DESC_CNT; 4958 bp->cp_ring_mask = bp->cp_bit - 1; 4959 } 4960 4961 /* Changing allocation mode of RX rings. 4962 * TODO: Update when extending xdp_rxq_info to support allocation modes. 4963 */ 4964 static void __bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode) 4965 { 4966 struct net_device *dev = bp->dev; 4967 4968 if (page_mode) { 4969 bp->flags &= ~(BNXT_FLAG_AGG_RINGS | BNXT_FLAG_NO_AGG_RINGS); 4970 bp->flags |= BNXT_FLAG_RX_PAGE_MODE; 4971 4972 if (bp->xdp_prog->aux->xdp_has_frags) 4973 dev->max_mtu = min_t(u16, bp->max_mtu, BNXT_MAX_MTU); 4974 else 4975 dev->max_mtu = 4976 min_t(u16, bp->max_mtu, BNXT_MAX_PAGE_MODE_MTU); 4977 if (dev->mtu > BNXT_MAX_PAGE_MODE_MTU) { 4978 bp->flags |= BNXT_FLAG_JUMBO; 4979 bp->rx_skb_func = bnxt_rx_multi_page_skb; 4980 } else { 4981 bp->flags |= BNXT_FLAG_NO_AGG_RINGS; 4982 bp->rx_skb_func = bnxt_rx_page_skb; 4983 } 4984 bp->rx_dir = DMA_BIDIRECTIONAL; 4985 } else { 4986 dev->max_mtu = bp->max_mtu; 4987 bp->flags &= ~BNXT_FLAG_RX_PAGE_MODE; 4988 bp->rx_dir = DMA_FROM_DEVICE; 4989 bp->rx_skb_func = bnxt_rx_skb; 4990 } 4991 } 4992 4993 void bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode) 4994 { 4995 __bnxt_set_rx_skb_mode(bp, page_mode); 4996 4997 if (!page_mode) { 4998 int rx, tx; 4999 5000 bnxt_get_max_rings(bp, &rx, &tx, true); 5001 if (rx > 1) { 5002 bp->flags &= ~BNXT_FLAG_NO_AGG_RINGS; 5003 bp->dev->hw_features |= NETIF_F_LRO; 5004 } 5005 } 5006 5007 /* Update LRO and GRO_HW availability */ 5008 netdev_update_features(bp->dev); 5009 } 5010 5011 static void bnxt_free_vnic_attributes(struct bnxt *bp) 5012 { 5013 int i; 5014 struct bnxt_vnic_info *vnic; 5015 struct pci_dev *pdev = bp->pdev; 5016 5017 if (!bp->vnic_info) 5018 return; 5019 5020 for (i = 0; i < bp->nr_vnics; i++) { 5021 vnic = &bp->vnic_info[i]; 5022 5023 kfree(vnic->fw_grp_ids); 5024 vnic->fw_grp_ids = NULL; 5025 5026 kfree(vnic->uc_list); 5027 vnic->uc_list = NULL; 5028 5029 if (vnic->mc_list) { 5030 dma_free_coherent(&pdev->dev, vnic->mc_list_size, 5031 vnic->mc_list, vnic->mc_list_mapping); 5032 vnic->mc_list = NULL; 5033 } 5034 5035 if (vnic->rss_table) { 5036 dma_free_coherent(&pdev->dev, vnic->rss_table_size, 5037 vnic->rss_table, 5038 vnic->rss_table_dma_addr); 5039 vnic->rss_table = NULL; 5040 } 5041 5042 vnic->rss_hash_key = NULL; 5043 vnic->flags = 0; 5044 } 5045 } 5046 5047 static int bnxt_alloc_vnic_attributes(struct bnxt *bp) 5048 { 5049 int i, rc = 0, size; 5050 struct bnxt_vnic_info *vnic; 5051 struct pci_dev *pdev = bp->pdev; 5052 int max_rings; 5053 5054 for (i = 0; i < bp->nr_vnics; i++) { 5055 vnic = &bp->vnic_info[i]; 5056 5057 if (vnic->flags & BNXT_VNIC_UCAST_FLAG) { 5058 int mem_size = (BNXT_MAX_UC_ADDRS - 1) * ETH_ALEN; 5059 5060 if (mem_size > 0) { 5061 vnic->uc_list = kmalloc(mem_size, GFP_KERNEL); 5062 if (!vnic->uc_list) { 5063 rc = -ENOMEM; 5064 goto out; 5065 } 5066 } 5067 } 5068 5069 if (vnic->flags & BNXT_VNIC_MCAST_FLAG) { 5070 vnic->mc_list_size = BNXT_MAX_MC_ADDRS * ETH_ALEN; 5071 vnic->mc_list = 5072 dma_alloc_coherent(&pdev->dev, 5073 vnic->mc_list_size, 5074 &vnic->mc_list_mapping, 5075 GFP_KERNEL); 5076 if (!vnic->mc_list) { 5077 rc = -ENOMEM; 5078 goto out; 5079 } 5080 } 5081 5082 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 5083 goto vnic_skip_grps; 5084 5085 if (vnic->flags & BNXT_VNIC_RSS_FLAG) 5086 max_rings = bp->rx_nr_rings; 5087 else 5088 max_rings = 1; 5089 5090 vnic->fw_grp_ids = kcalloc(max_rings, sizeof(u16), GFP_KERNEL); 5091 if (!vnic->fw_grp_ids) { 5092 rc = -ENOMEM; 5093 goto out; 5094 } 5095 vnic_skip_grps: 5096 if ((bp->rss_cap & BNXT_RSS_CAP_NEW_RSS_CAP) && 5097 !(vnic->flags & BNXT_VNIC_RSS_FLAG)) 5098 continue; 5099 5100 /* Allocate rss table and hash key */ 5101 size = L1_CACHE_ALIGN(HW_HASH_INDEX_SIZE * sizeof(u16)); 5102 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 5103 size = L1_CACHE_ALIGN(BNXT_MAX_RSS_TABLE_SIZE_P5); 5104 5105 vnic->rss_table_size = size + HW_HASH_KEY_SIZE; 5106 vnic->rss_table = dma_alloc_coherent(&pdev->dev, 5107 vnic->rss_table_size, 5108 &vnic->rss_table_dma_addr, 5109 GFP_KERNEL); 5110 if (!vnic->rss_table) { 5111 rc = -ENOMEM; 5112 goto out; 5113 } 5114 5115 vnic->rss_hash_key = ((void *)vnic->rss_table) + size; 5116 vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + size; 5117 } 5118 return 0; 5119 5120 out: 5121 return rc; 5122 } 5123 5124 static void bnxt_free_hwrm_resources(struct bnxt *bp) 5125 { 5126 struct bnxt_hwrm_wait_token *token; 5127 5128 dma_pool_destroy(bp->hwrm_dma_pool); 5129 bp->hwrm_dma_pool = NULL; 5130 5131 rcu_read_lock(); 5132 hlist_for_each_entry_rcu(token, &bp->hwrm_pending_list, node) 5133 WRITE_ONCE(token->state, BNXT_HWRM_CANCELLED); 5134 rcu_read_unlock(); 5135 } 5136 5137 static int bnxt_alloc_hwrm_resources(struct bnxt *bp) 5138 { 5139 bp->hwrm_dma_pool = dma_pool_create("bnxt_hwrm", &bp->pdev->dev, 5140 BNXT_HWRM_DMA_SIZE, 5141 BNXT_HWRM_DMA_ALIGN, 0); 5142 if (!bp->hwrm_dma_pool) 5143 return -ENOMEM; 5144 5145 INIT_HLIST_HEAD(&bp->hwrm_pending_list); 5146 5147 return 0; 5148 } 5149 5150 static void bnxt_free_stats_mem(struct bnxt *bp, struct bnxt_stats_mem *stats) 5151 { 5152 kfree(stats->hw_masks); 5153 stats->hw_masks = NULL; 5154 kfree(stats->sw_stats); 5155 stats->sw_stats = NULL; 5156 if (stats->hw_stats) { 5157 dma_free_coherent(&bp->pdev->dev, stats->len, stats->hw_stats, 5158 stats->hw_stats_map); 5159 stats->hw_stats = NULL; 5160 } 5161 } 5162 5163 static int bnxt_alloc_stats_mem(struct bnxt *bp, struct bnxt_stats_mem *stats, 5164 bool alloc_masks) 5165 { 5166 stats->hw_stats = dma_alloc_coherent(&bp->pdev->dev, stats->len, 5167 &stats->hw_stats_map, GFP_KERNEL); 5168 if (!stats->hw_stats) 5169 return -ENOMEM; 5170 5171 stats->sw_stats = kzalloc(stats->len, GFP_KERNEL); 5172 if (!stats->sw_stats) 5173 goto stats_mem_err; 5174 5175 if (alloc_masks) { 5176 stats->hw_masks = kzalloc(stats->len, GFP_KERNEL); 5177 if (!stats->hw_masks) 5178 goto stats_mem_err; 5179 } 5180 return 0; 5181 5182 stats_mem_err: 5183 bnxt_free_stats_mem(bp, stats); 5184 return -ENOMEM; 5185 } 5186 5187 static void bnxt_fill_masks(u64 *mask_arr, u64 mask, int count) 5188 { 5189 int i; 5190 5191 for (i = 0; i < count; i++) 5192 mask_arr[i] = mask; 5193 } 5194 5195 static void bnxt_copy_hw_masks(u64 *mask_arr, __le64 *hw_mask_arr, int count) 5196 { 5197 int i; 5198 5199 for (i = 0; i < count; i++) 5200 mask_arr[i] = le64_to_cpu(hw_mask_arr[i]); 5201 } 5202 5203 static int bnxt_hwrm_func_qstat_ext(struct bnxt *bp, 5204 struct bnxt_stats_mem *stats) 5205 { 5206 struct hwrm_func_qstats_ext_output *resp; 5207 struct hwrm_func_qstats_ext_input *req; 5208 __le64 *hw_masks; 5209 int rc; 5210 5211 if (!(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED) || 5212 !(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 5213 return -EOPNOTSUPP; 5214 5215 rc = hwrm_req_init(bp, req, HWRM_FUNC_QSTATS_EXT); 5216 if (rc) 5217 return rc; 5218 5219 req->fid = cpu_to_le16(0xffff); 5220 req->flags = FUNC_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK; 5221 5222 resp = hwrm_req_hold(bp, req); 5223 rc = hwrm_req_send(bp, req); 5224 if (!rc) { 5225 hw_masks = &resp->rx_ucast_pkts; 5226 bnxt_copy_hw_masks(stats->hw_masks, hw_masks, stats->len / 8); 5227 } 5228 hwrm_req_drop(bp, req); 5229 return rc; 5230 } 5231 5232 static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags); 5233 static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags); 5234 5235 static void bnxt_init_stats(struct bnxt *bp) 5236 { 5237 struct bnxt_napi *bnapi = bp->bnapi[0]; 5238 struct bnxt_cp_ring_info *cpr; 5239 struct bnxt_stats_mem *stats; 5240 __le64 *rx_stats, *tx_stats; 5241 int rc, rx_count, tx_count; 5242 u64 *rx_masks, *tx_masks; 5243 u64 mask; 5244 u8 flags; 5245 5246 cpr = &bnapi->cp_ring; 5247 stats = &cpr->stats; 5248 rc = bnxt_hwrm_func_qstat_ext(bp, stats); 5249 if (rc) { 5250 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 5251 mask = (1ULL << 48) - 1; 5252 else 5253 mask = -1ULL; 5254 bnxt_fill_masks(stats->hw_masks, mask, stats->len / 8); 5255 } 5256 if (bp->flags & BNXT_FLAG_PORT_STATS) { 5257 stats = &bp->port_stats; 5258 rx_stats = stats->hw_stats; 5259 rx_masks = stats->hw_masks; 5260 rx_count = sizeof(struct rx_port_stats) / 8; 5261 tx_stats = rx_stats + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 5262 tx_masks = rx_masks + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 5263 tx_count = sizeof(struct tx_port_stats) / 8; 5264 5265 flags = PORT_QSTATS_REQ_FLAGS_COUNTER_MASK; 5266 rc = bnxt_hwrm_port_qstats(bp, flags); 5267 if (rc) { 5268 mask = (1ULL << 40) - 1; 5269 5270 bnxt_fill_masks(rx_masks, mask, rx_count); 5271 bnxt_fill_masks(tx_masks, mask, tx_count); 5272 } else { 5273 bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count); 5274 bnxt_copy_hw_masks(tx_masks, tx_stats, tx_count); 5275 bnxt_hwrm_port_qstats(bp, 0); 5276 } 5277 } 5278 if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) { 5279 stats = &bp->rx_port_stats_ext; 5280 rx_stats = stats->hw_stats; 5281 rx_masks = stats->hw_masks; 5282 rx_count = sizeof(struct rx_port_stats_ext) / 8; 5283 stats = &bp->tx_port_stats_ext; 5284 tx_stats = stats->hw_stats; 5285 tx_masks = stats->hw_masks; 5286 tx_count = sizeof(struct tx_port_stats_ext) / 8; 5287 5288 flags = PORT_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK; 5289 rc = bnxt_hwrm_port_qstats_ext(bp, flags); 5290 if (rc) { 5291 mask = (1ULL << 40) - 1; 5292 5293 bnxt_fill_masks(rx_masks, mask, rx_count); 5294 if (tx_stats) 5295 bnxt_fill_masks(tx_masks, mask, tx_count); 5296 } else { 5297 bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count); 5298 if (tx_stats) 5299 bnxt_copy_hw_masks(tx_masks, tx_stats, 5300 tx_count); 5301 bnxt_hwrm_port_qstats_ext(bp, 0); 5302 } 5303 } 5304 } 5305 5306 static void bnxt_free_port_stats(struct bnxt *bp) 5307 { 5308 bp->flags &= ~BNXT_FLAG_PORT_STATS; 5309 bp->flags &= ~BNXT_FLAG_PORT_STATS_EXT; 5310 5311 bnxt_free_stats_mem(bp, &bp->port_stats); 5312 bnxt_free_stats_mem(bp, &bp->rx_port_stats_ext); 5313 bnxt_free_stats_mem(bp, &bp->tx_port_stats_ext); 5314 } 5315 5316 static void bnxt_free_ring_stats(struct bnxt *bp) 5317 { 5318 int i; 5319 5320 if (!bp->bnapi) 5321 return; 5322 5323 for (i = 0; i < bp->cp_nr_rings; i++) { 5324 struct bnxt_napi *bnapi = bp->bnapi[i]; 5325 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 5326 5327 bnxt_free_stats_mem(bp, &cpr->stats); 5328 5329 kfree(cpr->sw_stats); 5330 cpr->sw_stats = NULL; 5331 } 5332 } 5333 5334 static int bnxt_alloc_stats(struct bnxt *bp) 5335 { 5336 u32 size, i; 5337 int rc; 5338 5339 size = bp->hw_ring_stats_size; 5340 5341 for (i = 0; i < bp->cp_nr_rings; i++) { 5342 struct bnxt_napi *bnapi = bp->bnapi[i]; 5343 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 5344 5345 cpr->sw_stats = kzalloc_obj(*cpr->sw_stats); 5346 if (!cpr->sw_stats) 5347 return -ENOMEM; 5348 5349 cpr->stats.len = size; 5350 rc = bnxt_alloc_stats_mem(bp, &cpr->stats, !i); 5351 if (rc) 5352 return rc; 5353 5354 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID; 5355 } 5356 5357 if (BNXT_VF(bp) || bp->chip_num == CHIP_NUM_58700) 5358 return 0; 5359 5360 if (bp->port_stats.hw_stats) 5361 goto alloc_ext_stats; 5362 5363 bp->port_stats.len = BNXT_PORT_STATS_SIZE; 5364 rc = bnxt_alloc_stats_mem(bp, &bp->port_stats, true); 5365 if (rc) 5366 return rc; 5367 5368 bp->flags |= BNXT_FLAG_PORT_STATS; 5369 5370 alloc_ext_stats: 5371 /* Display extended statistics only if FW supports it */ 5372 if (bp->hwrm_spec_code < 0x10804 || bp->hwrm_spec_code == 0x10900) 5373 if (!(bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) 5374 return 0; 5375 5376 if (bp->rx_port_stats_ext.hw_stats) 5377 goto alloc_tx_ext_stats; 5378 5379 bp->rx_port_stats_ext.len = sizeof(struct rx_port_stats_ext); 5380 rc = bnxt_alloc_stats_mem(bp, &bp->rx_port_stats_ext, true); 5381 /* Extended stats are optional */ 5382 if (rc) 5383 return 0; 5384 5385 alloc_tx_ext_stats: 5386 if (bp->tx_port_stats_ext.hw_stats) 5387 return 0; 5388 5389 if (bp->hwrm_spec_code >= 0x10902 || 5390 (bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) { 5391 bp->tx_port_stats_ext.len = sizeof(struct tx_port_stats_ext); 5392 rc = bnxt_alloc_stats_mem(bp, &bp->tx_port_stats_ext, true); 5393 /* Extended stats are optional */ 5394 if (rc) 5395 return 0; 5396 } 5397 bp->flags |= BNXT_FLAG_PORT_STATS_EXT; 5398 return 0; 5399 } 5400 5401 static void bnxt_clear_ring_indices(struct bnxt *bp) 5402 { 5403 int i, j; 5404 5405 if (!bp->bnapi) 5406 return; 5407 5408 for (i = 0; i < bp->cp_nr_rings; i++) { 5409 struct bnxt_napi *bnapi = bp->bnapi[i]; 5410 struct bnxt_cp_ring_info *cpr; 5411 struct bnxt_rx_ring_info *rxr; 5412 struct bnxt_tx_ring_info *txr; 5413 5414 if (!bnapi) 5415 continue; 5416 5417 cpr = &bnapi->cp_ring; 5418 cpr->cp_raw_cons = 0; 5419 5420 bnxt_for_each_napi_tx(j, bnapi, txr) { 5421 txr->tx_prod = 0; 5422 txr->tx_cons = 0; 5423 txr->tx_hw_cons = 0; 5424 } 5425 5426 rxr = bnapi->rx_ring; 5427 if (rxr) { 5428 rxr->rx_prod = 0; 5429 rxr->rx_agg_prod = 0; 5430 rxr->rx_sw_agg_prod = 0; 5431 rxr->rx_next_cons = 0; 5432 } 5433 bnapi->events = 0; 5434 } 5435 } 5436 5437 void bnxt_insert_usr_fltr(struct bnxt *bp, struct bnxt_filter_base *fltr) 5438 { 5439 u8 type = fltr->type, flags = fltr->flags; 5440 5441 INIT_LIST_HEAD(&fltr->list); 5442 if ((type == BNXT_FLTR_TYPE_L2 && flags & BNXT_ACT_RING_DST) || 5443 (type == BNXT_FLTR_TYPE_NTUPLE && flags & BNXT_ACT_NO_AGING)) 5444 list_add_tail(&fltr->list, &bp->usr_fltr_list); 5445 } 5446 5447 void bnxt_del_one_usr_fltr(struct bnxt *bp, struct bnxt_filter_base *fltr) 5448 { 5449 if (!list_empty(&fltr->list)) 5450 list_del_init(&fltr->list); 5451 } 5452 5453 static void bnxt_clear_usr_fltrs(struct bnxt *bp, bool all) 5454 { 5455 struct bnxt_filter_base *usr_fltr, *tmp; 5456 5457 list_for_each_entry_safe(usr_fltr, tmp, &bp->usr_fltr_list, list) { 5458 if (!all && usr_fltr->type == BNXT_FLTR_TYPE_L2) 5459 continue; 5460 bnxt_del_one_usr_fltr(bp, usr_fltr); 5461 } 5462 } 5463 5464 static void bnxt_del_fltr(struct bnxt *bp, struct bnxt_filter_base *fltr) 5465 { 5466 hlist_del(&fltr->hash); 5467 bnxt_del_one_usr_fltr(bp, fltr); 5468 if (fltr->flags) { 5469 clear_bit(fltr->sw_id, bp->ntp_fltr_bmap); 5470 bp->ntp_fltr_count--; 5471 } 5472 kfree(fltr); 5473 } 5474 5475 static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool all) 5476 { 5477 int i; 5478 5479 netdev_assert_locked_or_invisible(bp->dev); 5480 5481 /* Under netdev instance lock and all our NAPIs have been disabled. 5482 * It's safe to delete the hash table. 5483 */ 5484 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) { 5485 struct hlist_head *head; 5486 struct hlist_node *tmp; 5487 struct bnxt_ntuple_filter *fltr; 5488 5489 head = &bp->ntp_fltr_hash_tbl[i]; 5490 hlist_for_each_entry_safe(fltr, tmp, head, base.hash) { 5491 bnxt_del_l2_filter(bp, fltr->l2_fltr); 5492 if (!all && ((fltr->base.flags & BNXT_ACT_FUNC_DST) || 5493 !list_empty(&fltr->base.list))) 5494 continue; 5495 bnxt_del_fltr(bp, &fltr->base); 5496 } 5497 } 5498 if (!all) 5499 return; 5500 5501 bitmap_free(bp->ntp_fltr_bmap); 5502 bp->ntp_fltr_bmap = NULL; 5503 bp->ntp_fltr_count = 0; 5504 } 5505 5506 static int bnxt_alloc_ntp_fltrs(struct bnxt *bp) 5507 { 5508 int i, rc = 0; 5509 5510 if (!(bp->flags & BNXT_FLAG_RFS) || bp->ntp_fltr_bmap) 5511 return 0; 5512 5513 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) 5514 INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]); 5515 5516 bp->ntp_fltr_count = 0; 5517 bp->ntp_fltr_bmap = bitmap_zalloc(bp->max_fltr, GFP_KERNEL); 5518 5519 if (!bp->ntp_fltr_bmap) 5520 rc = -ENOMEM; 5521 5522 return rc; 5523 } 5524 5525 static void bnxt_free_l2_filters(struct bnxt *bp, bool all) 5526 { 5527 int i; 5528 5529 for (i = 0; i < BNXT_L2_FLTR_HASH_SIZE; i++) { 5530 struct hlist_head *head; 5531 struct hlist_node *tmp; 5532 struct bnxt_l2_filter *fltr; 5533 5534 head = &bp->l2_fltr_hash_tbl[i]; 5535 hlist_for_each_entry_safe(fltr, tmp, head, base.hash) { 5536 if (!all && ((fltr->base.flags & BNXT_ACT_FUNC_DST) || 5537 !list_empty(&fltr->base.list))) 5538 continue; 5539 bnxt_del_fltr(bp, &fltr->base); 5540 } 5541 } 5542 } 5543 5544 static void bnxt_init_l2_fltr_tbl(struct bnxt *bp) 5545 { 5546 int i; 5547 5548 for (i = 0; i < BNXT_L2_FLTR_HASH_SIZE; i++) 5549 INIT_HLIST_HEAD(&bp->l2_fltr_hash_tbl[i]); 5550 get_random_bytes(&bp->hash_seed, sizeof(bp->hash_seed)); 5551 } 5552 5553 static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init) 5554 { 5555 bnxt_free_vnic_attributes(bp); 5556 bnxt_free_tx_rings(bp); 5557 bnxt_free_rx_rings(bp); 5558 bnxt_free_cp_rings(bp); 5559 bnxt_free_all_cp_arrays(bp); 5560 bnxt_free_ntp_fltrs(bp, false); 5561 bnxt_free_l2_filters(bp, false); 5562 if (irq_re_init) { 5563 bnxt_free_ring_stats(bp); 5564 if (!(bp->phy_flags & BNXT_PHY_FL_PORT_STATS_NO_RESET) || 5565 test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 5566 bnxt_free_port_stats(bp); 5567 bnxt_free_ring_grps(bp); 5568 bnxt_free_vnics(bp); 5569 kfree(bp->tx_ring_map); 5570 bp->tx_ring_map = NULL; 5571 kfree(bp->tx_ring); 5572 bp->tx_ring = NULL; 5573 kfree(bp->rx_ring); 5574 bp->rx_ring = NULL; 5575 kfree(bp->bnapi); 5576 bp->bnapi = NULL; 5577 } else { 5578 bnxt_clear_ring_indices(bp); 5579 } 5580 } 5581 5582 static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init) 5583 { 5584 int i, j, rc, size, arr_size; 5585 void *bnapi; 5586 5587 if (irq_re_init) { 5588 /* Allocate bnapi mem pointer array and mem block for 5589 * all queues 5590 */ 5591 arr_size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi *) * 5592 bp->cp_nr_rings); 5593 size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi)); 5594 bnapi = kzalloc(arr_size + size * bp->cp_nr_rings, GFP_KERNEL); 5595 if (!bnapi) 5596 return -ENOMEM; 5597 5598 bp->bnapi = bnapi; 5599 bnapi += arr_size; 5600 for (i = 0; i < bp->cp_nr_rings; i++, bnapi += size) { 5601 bp->bnapi[i] = bnapi; 5602 bp->bnapi[i]->index = i; 5603 bp->bnapi[i]->bp = bp; 5604 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 5605 struct bnxt_cp_ring_info *cpr = 5606 &bp->bnapi[i]->cp_ring; 5607 5608 cpr->cp_ring_struct.ring_mem.flags = 5609 BNXT_RMEM_RING_PTE_FLAG; 5610 } 5611 } 5612 5613 bp->rx_ring = kzalloc_objs(struct bnxt_rx_ring_info, 5614 bp->rx_nr_rings); 5615 if (!bp->rx_ring) 5616 return -ENOMEM; 5617 5618 for (i = 0; i < bp->rx_nr_rings; i++) { 5619 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 5620 5621 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 5622 rxr->rx_ring_struct.ring_mem.flags = 5623 BNXT_RMEM_RING_PTE_FLAG; 5624 rxr->rx_agg_ring_struct.ring_mem.flags = 5625 BNXT_RMEM_RING_PTE_FLAG; 5626 } else { 5627 rxr->rx_cpr = &bp->bnapi[i]->cp_ring; 5628 } 5629 rxr->bnapi = bp->bnapi[i]; 5630 bp->bnapi[i]->rx_ring = &bp->rx_ring[i]; 5631 } 5632 5633 bp->tx_ring = kzalloc_objs(struct bnxt_tx_ring_info, 5634 bp->tx_nr_rings); 5635 if (!bp->tx_ring) 5636 return -ENOMEM; 5637 5638 bp->tx_ring_map = kcalloc(bp->tx_nr_rings, sizeof(u16), 5639 GFP_KERNEL); 5640 5641 if (!bp->tx_ring_map) 5642 return -ENOMEM; 5643 5644 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 5645 j = 0; 5646 else 5647 j = bp->rx_nr_rings; 5648 5649 for (i = 0; i < bp->tx_nr_rings; i++) { 5650 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 5651 struct bnxt_napi *bnapi2; 5652 5653 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 5654 txr->tx_ring_struct.ring_mem.flags = 5655 BNXT_RMEM_RING_PTE_FLAG; 5656 bp->tx_ring_map[i] = bp->tx_nr_rings_xdp + i; 5657 if (i >= bp->tx_nr_rings_xdp) { 5658 int k = j + BNXT_RING_TO_TC_OFF(bp, i); 5659 5660 bnapi2 = bp->bnapi[k]; 5661 txr->txq_index = i - bp->tx_nr_rings_xdp; 5662 txr->tx_napi_idx = 5663 BNXT_RING_TO_TC(bp, txr->txq_index); 5664 bnapi2->tx_ring[txr->tx_napi_idx] = txr; 5665 bnapi2->tx_int = bnxt_tx_int; 5666 } else { 5667 bnapi2 = bp->bnapi[j]; 5668 bnapi2->flags |= BNXT_NAPI_FLAG_XDP; 5669 bnapi2->tx_ring[0] = txr; 5670 bnapi2->tx_int = bnxt_tx_int_xdp; 5671 j++; 5672 } 5673 txr->bnapi = bnapi2; 5674 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 5675 txr->tx_cpr = &bnapi2->cp_ring; 5676 } 5677 5678 rc = bnxt_alloc_stats(bp); 5679 if (rc) 5680 goto alloc_mem_err; 5681 bnxt_init_stats(bp); 5682 5683 rc = bnxt_alloc_ntp_fltrs(bp); 5684 if (rc) 5685 goto alloc_mem_err; 5686 5687 rc = bnxt_alloc_vnics(bp); 5688 if (rc) 5689 goto alloc_mem_err; 5690 } 5691 5692 rc = bnxt_alloc_all_cp_arrays(bp); 5693 if (rc) 5694 goto alloc_mem_err; 5695 5696 bnxt_init_ring_struct(bp); 5697 5698 rc = bnxt_alloc_rx_rings(bp); 5699 if (rc) 5700 goto alloc_mem_err; 5701 5702 rc = bnxt_alloc_tx_rings(bp); 5703 if (rc) 5704 goto alloc_mem_err; 5705 5706 rc = bnxt_alloc_cp_rings(bp); 5707 if (rc) 5708 goto alloc_mem_err; 5709 5710 bp->vnic_info[BNXT_VNIC_DEFAULT].flags |= BNXT_VNIC_RSS_FLAG | 5711 BNXT_VNIC_MCAST_FLAG | 5712 BNXT_VNIC_UCAST_FLAG; 5713 if (BNXT_SUPPORTS_NTUPLE_VNIC(bp) && (bp->flags & BNXT_FLAG_RFS)) 5714 bp->vnic_info[BNXT_VNIC_NTUPLE].flags |= 5715 BNXT_VNIC_RSS_FLAG | BNXT_VNIC_NTUPLE_FLAG; 5716 5717 rc = bnxt_alloc_vnic_attributes(bp); 5718 if (rc) 5719 goto alloc_mem_err; 5720 return 0; 5721 5722 alloc_mem_err: 5723 bnxt_free_mem(bp, true); 5724 return rc; 5725 } 5726 5727 static void bnxt_disable_int(struct bnxt *bp) 5728 { 5729 int i; 5730 5731 if (!bp->bnapi) 5732 return; 5733 5734 for (i = 0; i < bp->cp_nr_rings; i++) { 5735 struct bnxt_napi *bnapi = bp->bnapi[i]; 5736 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 5737 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 5738 5739 if (ring->fw_ring_id != INVALID_HW_RING_ID) 5740 bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons); 5741 } 5742 } 5743 5744 static int bnxt_cp_num_to_irq_num(struct bnxt *bp, int n) 5745 { 5746 struct bnxt_napi *bnapi = bp->bnapi[n]; 5747 struct bnxt_cp_ring_info *cpr; 5748 5749 cpr = &bnapi->cp_ring; 5750 return cpr->cp_ring_struct.map_idx; 5751 } 5752 5753 static void bnxt_disable_int_sync(struct bnxt *bp) 5754 { 5755 int i; 5756 5757 if (!bp->irq_tbl || !bp->bnapi) 5758 return; 5759 5760 atomic_inc(&bp->intr_sem); 5761 5762 bnxt_disable_int(bp); 5763 for (i = 0; i < bp->cp_nr_rings; i++) { 5764 int map_idx = bnxt_cp_num_to_irq_num(bp, i); 5765 5766 synchronize_irq(bp->irq_tbl[map_idx].vector); 5767 } 5768 } 5769 5770 static void bnxt_enable_int(struct bnxt *bp) 5771 { 5772 int i; 5773 5774 atomic_set(&bp->intr_sem, 0); 5775 for (i = 0; i < bp->cp_nr_rings; i++) { 5776 struct bnxt_napi *bnapi = bp->bnapi[i]; 5777 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 5778 5779 bnxt_db_nq_arm(bp, &cpr->cp_db, cpr->cp_raw_cons); 5780 } 5781 } 5782 5783 int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap, int bmap_size, 5784 bool async_only) 5785 { 5786 DECLARE_BITMAP(async_events_bmap, 256); 5787 u32 *events = (u32 *)async_events_bmap; 5788 struct hwrm_func_drv_rgtr_output *resp; 5789 struct hwrm_func_drv_rgtr_input *req; 5790 u32 flags; 5791 int rc, i; 5792 5793 rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_RGTR); 5794 if (rc) 5795 return rc; 5796 5797 req->enables = cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE | 5798 FUNC_DRV_RGTR_REQ_ENABLES_VER | 5799 FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD); 5800 5801 req->os_type = cpu_to_le16(FUNC_DRV_RGTR_REQ_OS_TYPE_LINUX); 5802 flags = FUNC_DRV_RGTR_REQ_FLAGS_16BIT_VER_MODE; 5803 if (bp->fw_cap & BNXT_FW_CAP_HOT_RESET) 5804 flags |= FUNC_DRV_RGTR_REQ_FLAGS_HOT_RESET_SUPPORT; 5805 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) 5806 flags |= FUNC_DRV_RGTR_REQ_FLAGS_ERROR_RECOVERY_SUPPORT | 5807 FUNC_DRV_RGTR_REQ_FLAGS_MASTER_SUPPORT; 5808 if (bp->fw_cap & BNXT_FW_CAP_NPAR_1_2) 5809 flags |= FUNC_DRV_RGTR_REQ_FLAGS_NPAR_1_2_SUPPORT; 5810 req->flags = cpu_to_le32(flags); 5811 req->ver_maj_8b = DRV_VER_MAJ; 5812 req->ver_min_8b = DRV_VER_MIN; 5813 req->ver_upd_8b = DRV_VER_UPD; 5814 req->ver_maj = cpu_to_le16(DRV_VER_MAJ); 5815 req->ver_min = cpu_to_le16(DRV_VER_MIN); 5816 req->ver_upd = cpu_to_le16(DRV_VER_UPD); 5817 5818 if (BNXT_PF(bp)) { 5819 u32 data[8]; 5820 int i; 5821 5822 memset(data, 0, sizeof(data)); 5823 for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++) { 5824 u16 cmd = bnxt_vf_req_snif[i]; 5825 unsigned int bit, idx; 5826 5827 if ((bp->fw_cap & BNXT_FW_CAP_LINK_ADMIN) && 5828 cmd == HWRM_PORT_PHY_QCFG) 5829 continue; 5830 5831 idx = cmd / 32; 5832 bit = cmd % 32; 5833 data[idx] |= 1 << bit; 5834 } 5835 5836 for (i = 0; i < 8; i++) 5837 req->vf_req_fwd[i] = cpu_to_le32(data[i]); 5838 5839 req->enables |= 5840 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_VF_REQ_FWD); 5841 } 5842 5843 if (bp->fw_cap & BNXT_FW_CAP_OVS_64BIT_HANDLE) 5844 req->flags |= cpu_to_le32( 5845 FUNC_DRV_RGTR_REQ_FLAGS_FLOW_HANDLE_64BIT_MODE); 5846 5847 memset(async_events_bmap, 0, sizeof(async_events_bmap)); 5848 for (i = 0; i < ARRAY_SIZE(bnxt_async_events_arr); i++) { 5849 u16 event_id = bnxt_async_events_arr[i]; 5850 5851 if (event_id == ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY && 5852 !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) 5853 continue; 5854 if (event_id == ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE && 5855 !bp->ptp_cfg) 5856 continue; 5857 __set_bit(bnxt_async_events_arr[i], async_events_bmap); 5858 } 5859 if (bmap && bmap_size) { 5860 for (i = 0; i < bmap_size; i++) { 5861 if (test_bit(i, bmap)) 5862 __set_bit(i, async_events_bmap); 5863 } 5864 } 5865 for (i = 0; i < 8; i++) 5866 req->async_event_fwd[i] |= cpu_to_le32(events[i]); 5867 5868 if (async_only) 5869 req->enables = 5870 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD); 5871 5872 resp = hwrm_req_hold(bp, req); 5873 rc = hwrm_req_send(bp, req); 5874 if (!rc) { 5875 set_bit(BNXT_STATE_DRV_REGISTERED, &bp->state); 5876 if (resp->flags & 5877 cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED)) 5878 bp->fw_cap |= BNXT_FW_CAP_IF_CHANGE; 5879 } 5880 hwrm_req_drop(bp, req); 5881 return rc; 5882 } 5883 5884 int bnxt_hwrm_func_drv_unrgtr(struct bnxt *bp) 5885 { 5886 struct hwrm_func_drv_unrgtr_input *req; 5887 int rc; 5888 5889 if (!test_and_clear_bit(BNXT_STATE_DRV_REGISTERED, &bp->state)) 5890 return 0; 5891 5892 rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_UNRGTR); 5893 if (rc) 5894 return rc; 5895 return hwrm_req_send(bp, req); 5896 } 5897 5898 static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa); 5899 5900 static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type) 5901 { 5902 struct hwrm_tunnel_dst_port_free_input *req; 5903 int rc; 5904 5905 if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN && 5906 bp->vxlan_fw_dst_port_id == INVALID_HW_RING_ID) 5907 return 0; 5908 if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE && 5909 bp->nge_fw_dst_port_id == INVALID_HW_RING_ID) 5910 return 0; 5911 5912 rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_FREE); 5913 if (rc) 5914 return rc; 5915 5916 req->tunnel_type = tunnel_type; 5917 5918 switch (tunnel_type) { 5919 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN: 5920 req->tunnel_dst_port_id = cpu_to_le16(bp->vxlan_fw_dst_port_id); 5921 bp->vxlan_port = 0; 5922 bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID; 5923 break; 5924 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE: 5925 req->tunnel_dst_port_id = cpu_to_le16(bp->nge_fw_dst_port_id); 5926 bp->nge_port = 0; 5927 bp->nge_fw_dst_port_id = INVALID_HW_RING_ID; 5928 break; 5929 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN_GPE: 5930 req->tunnel_dst_port_id = cpu_to_le16(bp->vxlan_gpe_fw_dst_port_id); 5931 bp->vxlan_gpe_port = 0; 5932 bp->vxlan_gpe_fw_dst_port_id = INVALID_HW_RING_ID; 5933 break; 5934 default: 5935 break; 5936 } 5937 5938 rc = hwrm_req_send(bp, req); 5939 if (rc) 5940 netdev_err(bp->dev, "hwrm_tunnel_dst_port_free failed. rc:%d\n", 5941 rc); 5942 if (bp->flags & BNXT_FLAG_TPA) 5943 bnxt_set_tpa(bp, true); 5944 return rc; 5945 } 5946 5947 static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port, 5948 u8 tunnel_type) 5949 { 5950 struct hwrm_tunnel_dst_port_alloc_output *resp; 5951 struct hwrm_tunnel_dst_port_alloc_input *req; 5952 int rc; 5953 5954 rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_ALLOC); 5955 if (rc) 5956 return rc; 5957 5958 req->tunnel_type = tunnel_type; 5959 req->tunnel_dst_port_val = port; 5960 5961 resp = hwrm_req_hold(bp, req); 5962 rc = hwrm_req_send(bp, req); 5963 if (rc) { 5964 netdev_err(bp->dev, "hwrm_tunnel_dst_port_alloc failed. rc:%d\n", 5965 rc); 5966 goto err_out; 5967 } 5968 5969 switch (tunnel_type) { 5970 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN: 5971 bp->vxlan_port = port; 5972 bp->vxlan_fw_dst_port_id = 5973 le16_to_cpu(resp->tunnel_dst_port_id); 5974 break; 5975 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE: 5976 bp->nge_port = port; 5977 bp->nge_fw_dst_port_id = le16_to_cpu(resp->tunnel_dst_port_id); 5978 break; 5979 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN_GPE: 5980 bp->vxlan_gpe_port = port; 5981 bp->vxlan_gpe_fw_dst_port_id = 5982 le16_to_cpu(resp->tunnel_dst_port_id); 5983 break; 5984 default: 5985 break; 5986 } 5987 if (bp->flags & BNXT_FLAG_TPA) 5988 bnxt_set_tpa(bp, true); 5989 5990 err_out: 5991 hwrm_req_drop(bp, req); 5992 return rc; 5993 } 5994 5995 static int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, u16 vnic_id) 5996 { 5997 struct hwrm_cfa_l2_set_rx_mask_input *req; 5998 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 5999 int rc; 6000 6001 rc = hwrm_req_init(bp, req, HWRM_CFA_L2_SET_RX_MASK); 6002 if (rc) 6003 return rc; 6004 6005 req->vnic_id = cpu_to_le32(vnic->fw_vnic_id); 6006 if (vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_MCAST) { 6007 req->num_mc_entries = cpu_to_le32(vnic->mc_list_count); 6008 req->mc_tbl_addr = cpu_to_le64(vnic->mc_list_mapping); 6009 } 6010 req->mask = cpu_to_le32(vnic->rx_mask); 6011 return hwrm_req_send_silent(bp, req); 6012 } 6013 6014 void bnxt_del_l2_filter(struct bnxt *bp, struct bnxt_l2_filter *fltr) 6015 { 6016 if (!atomic_dec_and_test(&fltr->refcnt)) 6017 return; 6018 spin_lock_bh(&bp->ntp_fltr_lock); 6019 if (!test_and_clear_bit(BNXT_FLTR_INSERTED, &fltr->base.state)) { 6020 spin_unlock_bh(&bp->ntp_fltr_lock); 6021 return; 6022 } 6023 hlist_del_rcu(&fltr->base.hash); 6024 bnxt_del_one_usr_fltr(bp, &fltr->base); 6025 if (fltr->base.flags) { 6026 clear_bit(fltr->base.sw_id, bp->ntp_fltr_bmap); 6027 bp->ntp_fltr_count--; 6028 } 6029 spin_unlock_bh(&bp->ntp_fltr_lock); 6030 kfree_rcu(fltr, base.rcu); 6031 } 6032 6033 static struct bnxt_l2_filter *__bnxt_lookup_l2_filter(struct bnxt *bp, 6034 struct bnxt_l2_key *key, 6035 u32 idx) 6036 { 6037 struct hlist_head *head = &bp->l2_fltr_hash_tbl[idx]; 6038 struct bnxt_l2_filter *fltr; 6039 6040 hlist_for_each_entry_rcu(fltr, head, base.hash) { 6041 struct bnxt_l2_key *l2_key = &fltr->l2_key; 6042 6043 if (ether_addr_equal(l2_key->dst_mac_addr, key->dst_mac_addr) && 6044 l2_key->vlan == key->vlan) 6045 return fltr; 6046 } 6047 return NULL; 6048 } 6049 6050 static struct bnxt_l2_filter *bnxt_lookup_l2_filter(struct bnxt *bp, 6051 struct bnxt_l2_key *key, 6052 u32 idx) 6053 { 6054 struct bnxt_l2_filter *fltr = NULL; 6055 6056 rcu_read_lock(); 6057 fltr = __bnxt_lookup_l2_filter(bp, key, idx); 6058 if (fltr) 6059 atomic_inc(&fltr->refcnt); 6060 rcu_read_unlock(); 6061 return fltr; 6062 } 6063 6064 #define BNXT_IPV4_4TUPLE(bp, fkeys) \ 6065 (((fkeys)->basic.ip_proto == IPPROTO_TCP && \ 6066 (bp)->rss_hash_cfg & VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4) || \ 6067 ((fkeys)->basic.ip_proto == IPPROTO_UDP && \ 6068 (bp)->rss_hash_cfg & VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4)) 6069 6070 #define BNXT_IPV6_4TUPLE(bp, fkeys) \ 6071 (((fkeys)->basic.ip_proto == IPPROTO_TCP && \ 6072 (bp)->rss_hash_cfg & VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6) || \ 6073 ((fkeys)->basic.ip_proto == IPPROTO_UDP && \ 6074 (bp)->rss_hash_cfg & VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6)) 6075 6076 static u32 bnxt_get_rss_flow_tuple_len(struct bnxt *bp, struct flow_keys *fkeys) 6077 { 6078 if (fkeys->basic.n_proto == htons(ETH_P_IP)) { 6079 if (BNXT_IPV4_4TUPLE(bp, fkeys)) 6080 return sizeof(fkeys->addrs.v4addrs) + 6081 sizeof(fkeys->ports); 6082 6083 if (bp->rss_hash_cfg & VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4) 6084 return sizeof(fkeys->addrs.v4addrs); 6085 } 6086 6087 if (fkeys->basic.n_proto == htons(ETH_P_IPV6)) { 6088 if (BNXT_IPV6_4TUPLE(bp, fkeys)) 6089 return sizeof(fkeys->addrs.v6addrs) + 6090 sizeof(fkeys->ports); 6091 6092 if (bp->rss_hash_cfg & VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6) 6093 return sizeof(fkeys->addrs.v6addrs); 6094 } 6095 6096 return 0; 6097 } 6098 6099 static u32 bnxt_toeplitz(struct bnxt *bp, struct flow_keys *fkeys, 6100 const unsigned char *key) 6101 { 6102 u64 prefix = bp->toeplitz_prefix, hash = 0; 6103 struct bnxt_ipv4_tuple tuple4; 6104 struct bnxt_ipv6_tuple tuple6; 6105 int i, j, len = 0; 6106 u8 *four_tuple; 6107 6108 len = bnxt_get_rss_flow_tuple_len(bp, fkeys); 6109 if (!len) 6110 return 0; 6111 6112 if (fkeys->basic.n_proto == htons(ETH_P_IP)) { 6113 tuple4.v4addrs = fkeys->addrs.v4addrs; 6114 tuple4.ports = fkeys->ports; 6115 four_tuple = (unsigned char *)&tuple4; 6116 } else { 6117 tuple6.v6addrs = fkeys->addrs.v6addrs; 6118 tuple6.ports = fkeys->ports; 6119 four_tuple = (unsigned char *)&tuple6; 6120 } 6121 6122 for (i = 0, j = 8; i < len; i++, j++) { 6123 u8 byte = four_tuple[i]; 6124 int bit; 6125 6126 for (bit = 0; bit < 8; bit++, prefix <<= 1, byte <<= 1) { 6127 if (byte & 0x80) 6128 hash ^= prefix; 6129 } 6130 prefix |= (j < HW_HASH_KEY_SIZE) ? key[j] : 0; 6131 } 6132 6133 /* The valid part of the hash is in the upper 32 bits. */ 6134 return (hash >> 32) & BNXT_NTP_FLTR_HASH_MASK; 6135 } 6136 6137 #ifdef CONFIG_RFS_ACCEL 6138 static struct bnxt_l2_filter * 6139 bnxt_lookup_l2_filter_from_key(struct bnxt *bp, struct bnxt_l2_key *key) 6140 { 6141 struct bnxt_l2_filter *fltr; 6142 u32 idx; 6143 6144 idx = jhash2(&key->filter_key, BNXT_L2_KEY_SIZE, bp->hash_seed) & 6145 BNXT_L2_FLTR_HASH_MASK; 6146 fltr = bnxt_lookup_l2_filter(bp, key, idx); 6147 return fltr; 6148 } 6149 #endif 6150 6151 static int bnxt_init_l2_filter(struct bnxt *bp, struct bnxt_l2_filter *fltr, 6152 struct bnxt_l2_key *key, u32 idx) 6153 { 6154 struct hlist_head *head; 6155 6156 ether_addr_copy(fltr->l2_key.dst_mac_addr, key->dst_mac_addr); 6157 fltr->l2_key.vlan = key->vlan; 6158 fltr->base.type = BNXT_FLTR_TYPE_L2; 6159 if (fltr->base.flags) { 6160 int bit_id; 6161 6162 bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, 6163 bp->max_fltr, 0); 6164 if (bit_id < 0) 6165 return -ENOMEM; 6166 fltr->base.sw_id = (u16)bit_id; 6167 bp->ntp_fltr_count++; 6168 } 6169 head = &bp->l2_fltr_hash_tbl[idx]; 6170 hlist_add_head_rcu(&fltr->base.hash, head); 6171 bnxt_insert_usr_fltr(bp, &fltr->base); 6172 set_bit(BNXT_FLTR_INSERTED, &fltr->base.state); 6173 atomic_set(&fltr->refcnt, 1); 6174 return 0; 6175 } 6176 6177 static struct bnxt_l2_filter *bnxt_alloc_l2_filter(struct bnxt *bp, 6178 struct bnxt_l2_key *key, 6179 gfp_t gfp) 6180 { 6181 struct bnxt_l2_filter *fltr; 6182 u32 idx; 6183 int rc; 6184 6185 idx = jhash2(&key->filter_key, BNXT_L2_KEY_SIZE, bp->hash_seed) & 6186 BNXT_L2_FLTR_HASH_MASK; 6187 fltr = bnxt_lookup_l2_filter(bp, key, idx); 6188 if (fltr) 6189 return fltr; 6190 6191 fltr = kzalloc_obj(*fltr, gfp); 6192 if (!fltr) 6193 return ERR_PTR(-ENOMEM); 6194 spin_lock_bh(&bp->ntp_fltr_lock); 6195 rc = bnxt_init_l2_filter(bp, fltr, key, idx); 6196 spin_unlock_bh(&bp->ntp_fltr_lock); 6197 if (rc) { 6198 bnxt_del_l2_filter(bp, fltr); 6199 fltr = ERR_PTR(rc); 6200 } 6201 return fltr; 6202 } 6203 6204 struct bnxt_l2_filter *bnxt_alloc_new_l2_filter(struct bnxt *bp, 6205 struct bnxt_l2_key *key, 6206 u16 flags) 6207 { 6208 struct bnxt_l2_filter *fltr; 6209 u32 idx; 6210 int rc; 6211 6212 idx = jhash2(&key->filter_key, BNXT_L2_KEY_SIZE, bp->hash_seed) & 6213 BNXT_L2_FLTR_HASH_MASK; 6214 spin_lock_bh(&bp->ntp_fltr_lock); 6215 fltr = __bnxt_lookup_l2_filter(bp, key, idx); 6216 if (fltr) { 6217 fltr = ERR_PTR(-EEXIST); 6218 goto l2_filter_exit; 6219 } 6220 fltr = kzalloc_obj(*fltr, GFP_ATOMIC); 6221 if (!fltr) { 6222 fltr = ERR_PTR(-ENOMEM); 6223 goto l2_filter_exit; 6224 } 6225 fltr->base.flags = flags; 6226 rc = bnxt_init_l2_filter(bp, fltr, key, idx); 6227 if (rc) { 6228 spin_unlock_bh(&bp->ntp_fltr_lock); 6229 bnxt_del_l2_filter(bp, fltr); 6230 return ERR_PTR(rc); 6231 } 6232 6233 l2_filter_exit: 6234 spin_unlock_bh(&bp->ntp_fltr_lock); 6235 return fltr; 6236 } 6237 6238 static u16 bnxt_vf_target_id(struct bnxt_pf_info *pf, u16 vf_idx) 6239 { 6240 #ifdef CONFIG_BNXT_SRIOV 6241 struct bnxt_vf_info *vf = &pf->vf[vf_idx]; 6242 6243 return vf->fw_fid; 6244 #else 6245 return INVALID_HW_RING_ID; 6246 #endif 6247 } 6248 6249 int bnxt_hwrm_l2_filter_free(struct bnxt *bp, struct bnxt_l2_filter *fltr) 6250 { 6251 struct hwrm_cfa_l2_filter_free_input *req; 6252 u16 target_id = 0xffff; 6253 int rc; 6254 6255 if (fltr->base.flags & BNXT_ACT_FUNC_DST) { 6256 struct bnxt_pf_info *pf = &bp->pf; 6257 6258 if (fltr->base.vf_idx >= pf->active_vfs) 6259 return -EINVAL; 6260 6261 target_id = bnxt_vf_target_id(pf, fltr->base.vf_idx); 6262 if (target_id == INVALID_HW_RING_ID) 6263 return -EINVAL; 6264 } 6265 6266 rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_FREE); 6267 if (rc) 6268 return rc; 6269 6270 req->target_id = cpu_to_le16(target_id); 6271 req->l2_filter_id = fltr->base.filter_id; 6272 return hwrm_req_send(bp, req); 6273 } 6274 6275 int bnxt_hwrm_l2_filter_alloc(struct bnxt *bp, struct bnxt_l2_filter *fltr) 6276 { 6277 struct hwrm_cfa_l2_filter_alloc_output *resp; 6278 struct hwrm_cfa_l2_filter_alloc_input *req; 6279 u16 target_id = 0xffff; 6280 int rc; 6281 6282 if (fltr->base.flags & BNXT_ACT_FUNC_DST) { 6283 struct bnxt_pf_info *pf = &bp->pf; 6284 6285 if (fltr->base.vf_idx >= pf->active_vfs) 6286 return -EINVAL; 6287 6288 target_id = bnxt_vf_target_id(pf, fltr->base.vf_idx); 6289 } 6290 rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_ALLOC); 6291 if (rc) 6292 return rc; 6293 6294 req->target_id = cpu_to_le16(target_id); 6295 req->flags = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX); 6296 6297 if (!BNXT_CHIP_TYPE_NITRO_A0(bp)) 6298 req->flags |= 6299 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST); 6300 req->dst_id = cpu_to_le16(fltr->base.fw_vnic_id); 6301 req->enables = 6302 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR | 6303 CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_ID | 6304 CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK); 6305 ether_addr_copy(req->l2_addr, fltr->l2_key.dst_mac_addr); 6306 eth_broadcast_addr(req->l2_addr_mask); 6307 6308 if (fltr->l2_key.vlan) { 6309 req->enables |= 6310 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_IVLAN | 6311 CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_IVLAN_MASK | 6312 CFA_L2_FILTER_ALLOC_REQ_ENABLES_NUM_VLANS); 6313 req->num_vlans = 1; 6314 req->l2_ivlan = cpu_to_le16(fltr->l2_key.vlan); 6315 req->l2_ivlan_mask = cpu_to_le16(0xfff); 6316 } 6317 6318 resp = hwrm_req_hold(bp, req); 6319 rc = hwrm_req_send(bp, req); 6320 if (!rc) { 6321 fltr->base.filter_id = resp->l2_filter_id; 6322 set_bit(BNXT_FLTR_VALID, &fltr->base.state); 6323 } 6324 hwrm_req_drop(bp, req); 6325 return rc; 6326 } 6327 6328 int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp, 6329 struct bnxt_ntuple_filter *fltr) 6330 { 6331 struct hwrm_cfa_ntuple_filter_free_input *req; 6332 int rc; 6333 6334 set_bit(BNXT_FLTR_FW_DELETED, &fltr->base.state); 6335 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) 6336 return 0; 6337 6338 rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_FREE); 6339 if (rc) 6340 return rc; 6341 6342 req->ntuple_filter_id = fltr->base.filter_id; 6343 return hwrm_req_send(bp, req); 6344 } 6345 6346 #define BNXT_NTP_FLTR_FLAGS \ 6347 (CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_L2_FILTER_ID | \ 6348 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE | \ 6349 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE | \ 6350 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR | \ 6351 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR_MASK | \ 6352 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR | \ 6353 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR_MASK | \ 6354 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL | \ 6355 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT | \ 6356 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT_MASK | \ 6357 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT | \ 6358 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK | \ 6359 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_ID) 6360 6361 #define BNXT_NTP_TUNNEL_FLTR_FLAG \ 6362 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE 6363 6364 void bnxt_fill_ipv6_mask(__be32 mask[4]) 6365 { 6366 int i; 6367 6368 for (i = 0; i < 4; i++) 6369 mask[i] = cpu_to_be32(~0); 6370 } 6371 6372 static void 6373 bnxt_cfg_rfs_ring_tbl_idx(struct bnxt *bp, 6374 struct hwrm_cfa_ntuple_filter_alloc_input *req, 6375 struct bnxt_ntuple_filter *fltr) 6376 { 6377 u16 rxq = fltr->base.rxq; 6378 6379 if (fltr->base.flags & BNXT_ACT_RSS_CTX) { 6380 struct ethtool_rxfh_context *ctx; 6381 struct bnxt_rss_ctx *rss_ctx; 6382 struct bnxt_vnic_info *vnic; 6383 6384 ctx = xa_load(&bp->dev->ethtool->rss_ctx, 6385 fltr->base.fw_vnic_id); 6386 if (ctx) { 6387 rss_ctx = ethtool_rxfh_context_priv(ctx); 6388 vnic = &rss_ctx->vnic; 6389 6390 req->dst_id = cpu_to_le16(vnic->fw_vnic_id); 6391 } 6392 return; 6393 } 6394 if (BNXT_SUPPORTS_NTUPLE_VNIC(bp)) { 6395 struct bnxt_vnic_info *vnic; 6396 u32 enables; 6397 6398 vnic = &bp->vnic_info[BNXT_VNIC_NTUPLE]; 6399 req->dst_id = cpu_to_le16(vnic->fw_vnic_id); 6400 enables = CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_RFS_RING_TBL_IDX; 6401 req->enables |= cpu_to_le32(enables); 6402 req->rfs_ring_tbl_idx = cpu_to_le16(rxq); 6403 } else { 6404 u32 flags; 6405 6406 flags = CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DEST_RFS_RING_IDX; 6407 req->flags |= cpu_to_le32(flags); 6408 req->dst_id = cpu_to_le16(rxq); 6409 } 6410 } 6411 6412 int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp, 6413 struct bnxt_ntuple_filter *fltr) 6414 { 6415 struct hwrm_cfa_ntuple_filter_alloc_output *resp; 6416 struct hwrm_cfa_ntuple_filter_alloc_input *req; 6417 struct bnxt_flow_masks *masks = &fltr->fmasks; 6418 struct flow_keys *keys = &fltr->fkeys; 6419 struct bnxt_l2_filter *l2_fltr; 6420 struct bnxt_vnic_info *vnic; 6421 int rc; 6422 6423 rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_ALLOC); 6424 if (rc) 6425 return rc; 6426 6427 l2_fltr = fltr->l2_fltr; 6428 req->l2_filter_id = l2_fltr->base.filter_id; 6429 6430 if (fltr->base.flags & BNXT_ACT_DROP) { 6431 req->flags = 6432 cpu_to_le32(CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DROP); 6433 } else if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) { 6434 bnxt_cfg_rfs_ring_tbl_idx(bp, req, fltr); 6435 } else { 6436 vnic = &bp->vnic_info[fltr->base.rxq + 1]; 6437 req->dst_id = cpu_to_le16(vnic->fw_vnic_id); 6438 } 6439 req->enables |= cpu_to_le32(BNXT_NTP_FLTR_FLAGS); 6440 6441 req->ethertype = htons(ETH_P_IP); 6442 req->ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4; 6443 req->ip_protocol = keys->basic.ip_proto; 6444 6445 if (keys->basic.n_proto == htons(ETH_P_IPV6)) { 6446 req->ethertype = htons(ETH_P_IPV6); 6447 req->ip_addr_type = 6448 CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV6; 6449 *(struct in6_addr *)&req->src_ipaddr[0] = keys->addrs.v6addrs.src; 6450 *(struct in6_addr *)&req->src_ipaddr_mask[0] = masks->addrs.v6addrs.src; 6451 *(struct in6_addr *)&req->dst_ipaddr[0] = keys->addrs.v6addrs.dst; 6452 *(struct in6_addr *)&req->dst_ipaddr_mask[0] = masks->addrs.v6addrs.dst; 6453 } else { 6454 req->src_ipaddr[0] = keys->addrs.v4addrs.src; 6455 req->src_ipaddr_mask[0] = masks->addrs.v4addrs.src; 6456 req->dst_ipaddr[0] = keys->addrs.v4addrs.dst; 6457 req->dst_ipaddr_mask[0] = masks->addrs.v4addrs.dst; 6458 } 6459 if (keys->control.flags & FLOW_DIS_ENCAPSULATION) { 6460 req->enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG); 6461 req->tunnel_type = 6462 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL; 6463 } 6464 6465 req->src_port = keys->ports.src; 6466 req->src_port_mask = masks->ports.src; 6467 req->dst_port = keys->ports.dst; 6468 req->dst_port_mask = masks->ports.dst; 6469 6470 resp = hwrm_req_hold(bp, req); 6471 rc = hwrm_req_send(bp, req); 6472 if (!rc) 6473 fltr->base.filter_id = resp->ntuple_filter_id; 6474 hwrm_req_drop(bp, req); 6475 return rc; 6476 } 6477 6478 static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx, 6479 const u8 *mac_addr) 6480 { 6481 struct bnxt_l2_filter *fltr; 6482 struct bnxt_l2_key key; 6483 int rc; 6484 6485 ether_addr_copy(key.dst_mac_addr, mac_addr); 6486 key.vlan = 0; 6487 fltr = bnxt_alloc_l2_filter(bp, &key, GFP_KERNEL); 6488 if (IS_ERR(fltr)) 6489 return PTR_ERR(fltr); 6490 6491 fltr->base.fw_vnic_id = bp->vnic_info[vnic_id].fw_vnic_id; 6492 rc = bnxt_hwrm_l2_filter_alloc(bp, fltr); 6493 if (rc) 6494 bnxt_del_l2_filter(bp, fltr); 6495 else 6496 bp->vnic_info[vnic_id].l2_filters[idx] = fltr; 6497 return rc; 6498 } 6499 6500 static void bnxt_hwrm_clear_vnic_filter(struct bnxt *bp) 6501 { 6502 u16 i, j, num_of_vnics = 1; /* only vnic 0 supported */ 6503 6504 /* Any associated ntuple filters will also be cleared by firmware. */ 6505 for (i = 0; i < num_of_vnics; i++) { 6506 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 6507 6508 for (j = 0; j < vnic->uc_filter_count; j++) { 6509 struct bnxt_l2_filter *fltr = vnic->l2_filters[j]; 6510 6511 bnxt_hwrm_l2_filter_free(bp, fltr); 6512 bnxt_del_l2_filter(bp, fltr); 6513 } 6514 vnic->uc_filter_count = 0; 6515 } 6516 } 6517 6518 #define BNXT_DFLT_TUNL_TPA_BMAP \ 6519 (VNIC_TPA_CFG_REQ_TNL_TPA_EN_BITMAP_GRE | \ 6520 VNIC_TPA_CFG_REQ_TNL_TPA_EN_BITMAP_IPV4 | \ 6521 VNIC_TPA_CFG_REQ_TNL_TPA_EN_BITMAP_IPV6) 6522 6523 static void bnxt_hwrm_vnic_update_tunl_tpa(struct bnxt *bp, 6524 struct hwrm_vnic_tpa_cfg_input *req) 6525 { 6526 u32 tunl_tpa_bmap = BNXT_DFLT_TUNL_TPA_BMAP; 6527 6528 if (!(bp->fw_cap & BNXT_FW_CAP_VNIC_TUNNEL_TPA)) 6529 return; 6530 6531 if (bp->vxlan_port) 6532 tunl_tpa_bmap |= VNIC_TPA_CFG_REQ_TNL_TPA_EN_BITMAP_VXLAN; 6533 if (bp->vxlan_gpe_port) 6534 tunl_tpa_bmap |= VNIC_TPA_CFG_REQ_TNL_TPA_EN_BITMAP_VXLAN_GPE; 6535 if (bp->nge_port) 6536 tunl_tpa_bmap |= VNIC_TPA_CFG_REQ_TNL_TPA_EN_BITMAP_GENEVE; 6537 6538 req->enables |= cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_TNL_TPA_EN); 6539 req->tnl_tpa_en_bitmap = cpu_to_le32(tunl_tpa_bmap); 6540 } 6541 6542 int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, struct bnxt_vnic_info *vnic, 6543 u32 tpa_flags) 6544 { 6545 u16 max_aggs = VNIC_TPA_CFG_REQ_MAX_AGGS_MAX; 6546 struct hwrm_vnic_tpa_cfg_input *req; 6547 int rc; 6548 6549 if (vnic->fw_vnic_id == INVALID_HW_RING_ID) 6550 return 0; 6551 6552 rc = hwrm_req_init(bp, req, HWRM_VNIC_TPA_CFG); 6553 if (rc) 6554 return rc; 6555 6556 if (tpa_flags) { 6557 u16 mss = bp->dev->mtu - 40; 6558 u32 nsegs, n, segs = 0, flags; 6559 6560 flags = VNIC_TPA_CFG_REQ_FLAGS_TPA | 6561 VNIC_TPA_CFG_REQ_FLAGS_ENCAP_TPA | 6562 VNIC_TPA_CFG_REQ_FLAGS_RSC_WND_UPDATE | 6563 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_ECN | 6564 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_SAME_GRE_SEQ; 6565 if (tpa_flags & BNXT_FLAG_GRO) 6566 flags |= VNIC_TPA_CFG_REQ_FLAGS_GRO; 6567 6568 req->flags = cpu_to_le32(flags); 6569 6570 req->enables = 6571 cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_MAX_AGG_SEGS | 6572 VNIC_TPA_CFG_REQ_ENABLES_MAX_AGGS | 6573 VNIC_TPA_CFG_REQ_ENABLES_MIN_AGG_LEN); 6574 6575 /* Number of segs are log2 units, and first packet is not 6576 * included as part of this units. 6577 */ 6578 if (mss <= BNXT_RX_PAGE_SIZE) { 6579 n = BNXT_RX_PAGE_SIZE / mss; 6580 nsegs = (MAX_SKB_FRAGS - 1) * n; 6581 } else { 6582 n = mss / BNXT_RX_PAGE_SIZE; 6583 if (mss & (BNXT_RX_PAGE_SIZE - 1)) 6584 n++; 6585 nsegs = (MAX_SKB_FRAGS - n) / n; 6586 } 6587 6588 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 6589 segs = MAX_TPA_SEGS_P5; 6590 max_aggs = bp->max_tpa; 6591 } else { 6592 segs = ilog2(nsegs); 6593 } 6594 req->max_agg_segs = cpu_to_le16(segs); 6595 req->max_aggs = cpu_to_le16(max_aggs); 6596 6597 req->min_agg_len = cpu_to_le32(512); 6598 bnxt_hwrm_vnic_update_tunl_tpa(bp, req); 6599 } 6600 req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); 6601 6602 return hwrm_req_send(bp, req); 6603 } 6604 6605 static u16 bnxt_cp_ring_from_grp(struct bnxt *bp, struct bnxt_ring_struct *ring) 6606 { 6607 struct bnxt_ring_grp_info *grp_info; 6608 6609 grp_info = &bp->grp_info[ring->grp_idx]; 6610 return grp_info->cp_fw_ring_id; 6611 } 6612 6613 static u16 bnxt_cp_ring_for_rx(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) 6614 { 6615 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 6616 return rxr->rx_cpr->cp_ring_struct.fw_ring_id; 6617 else 6618 return bnxt_cp_ring_from_grp(bp, &rxr->rx_ring_struct); 6619 } 6620 6621 static u16 bnxt_cp_ring_for_tx(struct bnxt *bp, struct bnxt_tx_ring_info *txr) 6622 { 6623 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 6624 return txr->tx_cpr->cp_ring_struct.fw_ring_id; 6625 else 6626 return bnxt_cp_ring_from_grp(bp, &txr->tx_ring_struct); 6627 } 6628 6629 static int bnxt_alloc_rss_indir_tbl(struct bnxt *bp) 6630 { 6631 int entries; 6632 6633 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 6634 entries = BNXT_MAX_RSS_TABLE_ENTRIES_P5; 6635 else 6636 entries = HW_HASH_INDEX_SIZE; 6637 6638 bp->rss_indir_tbl_entries = entries; 6639 bp->rss_indir_tbl = 6640 kmalloc_array(entries, sizeof(*bp->rss_indir_tbl), GFP_KERNEL); 6641 if (!bp->rss_indir_tbl) 6642 return -ENOMEM; 6643 6644 return 0; 6645 } 6646 6647 void bnxt_set_dflt_rss_indir_tbl(struct bnxt *bp, 6648 struct ethtool_rxfh_context *rss_ctx) 6649 { 6650 u16 max_rings, max_entries, pad, i; 6651 u32 *rss_indir_tbl; 6652 6653 if (!bp->rx_nr_rings) 6654 return; 6655 6656 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 6657 max_rings = bp->rx_nr_rings - 1; 6658 else 6659 max_rings = bp->rx_nr_rings; 6660 6661 max_entries = bnxt_get_rxfh_indir_size(bp->dev); 6662 if (rss_ctx) 6663 rss_indir_tbl = ethtool_rxfh_context_indir(rss_ctx); 6664 else 6665 rss_indir_tbl = &bp->rss_indir_tbl[0]; 6666 6667 for (i = 0; i < max_entries; i++) 6668 rss_indir_tbl[i] = ethtool_rxfh_indir_default(i, max_rings); 6669 6670 pad = bp->rss_indir_tbl_entries - max_entries; 6671 if (pad) 6672 memset(&rss_indir_tbl[i], 0, pad * sizeof(*rss_indir_tbl)); 6673 } 6674 6675 static u16 bnxt_get_max_rss_ring(struct bnxt *bp) 6676 { 6677 u32 i, tbl_size, max_ring = 0; 6678 6679 if (!bp->rss_indir_tbl) 6680 return 0; 6681 6682 tbl_size = bnxt_get_rxfh_indir_size(bp->dev); 6683 for (i = 0; i < tbl_size; i++) 6684 max_ring = max(max_ring, bp->rss_indir_tbl[i]); 6685 return max_ring; 6686 } 6687 6688 int bnxt_get_nr_rss_ctxs(struct bnxt *bp, int rx_rings) 6689 { 6690 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 6691 if (!rx_rings) 6692 return 0; 6693 if (bp->rss_cap & BNXT_RSS_CAP_LARGE_RSS_CTX) 6694 return BNXT_RSS_TABLE_MAX_TBL_P5; 6695 6696 return bnxt_calc_nr_ring_pages(rx_rings - 1, 6697 BNXT_RSS_TABLE_ENTRIES_P5); 6698 } 6699 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 6700 return 2; 6701 return 1; 6702 } 6703 6704 static void bnxt_fill_hw_rss_tbl(struct bnxt *bp, struct bnxt_vnic_info *vnic) 6705 { 6706 bool no_rss = !(vnic->flags & BNXT_VNIC_RSS_FLAG); 6707 u16 i, j; 6708 6709 /* Fill the RSS indirection table with ring group ids */ 6710 for (i = 0, j = 0; i < HW_HASH_INDEX_SIZE; i++) { 6711 if (!no_rss) 6712 j = bp->rss_indir_tbl[i]; 6713 vnic->rss_table[i] = cpu_to_le16(vnic->fw_grp_ids[j]); 6714 } 6715 } 6716 6717 static void bnxt_fill_hw_rss_tbl_p5(struct bnxt *bp, 6718 struct bnxt_vnic_info *vnic) 6719 { 6720 __le16 *ring_tbl = vnic->rss_table; 6721 struct bnxt_rx_ring_info *rxr; 6722 u16 tbl_size, i; 6723 6724 tbl_size = bnxt_get_rxfh_indir_size(bp->dev); 6725 6726 for (i = 0; i < tbl_size; i++) { 6727 u16 ring_id, j; 6728 6729 if (vnic->flags & BNXT_VNIC_NTUPLE_FLAG) 6730 j = ethtool_rxfh_indir_default(i, bp->rx_nr_rings); 6731 else if (vnic->flags & BNXT_VNIC_RSSCTX_FLAG) 6732 j = ethtool_rxfh_context_indir(vnic->rss_ctx)[i]; 6733 else 6734 j = bp->rss_indir_tbl[i]; 6735 rxr = &bp->rx_ring[j]; 6736 6737 ring_id = rxr->rx_ring_struct.fw_ring_id; 6738 *ring_tbl++ = cpu_to_le16(ring_id); 6739 ring_id = bnxt_cp_ring_for_rx(bp, rxr); 6740 *ring_tbl++ = cpu_to_le16(ring_id); 6741 } 6742 } 6743 6744 static void 6745 __bnxt_hwrm_vnic_set_rss(struct bnxt *bp, struct hwrm_vnic_rss_cfg_input *req, 6746 struct bnxt_vnic_info *vnic) 6747 { 6748 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 6749 bnxt_fill_hw_rss_tbl_p5(bp, vnic); 6750 if (bp->flags & BNXT_FLAG_CHIP_P7) 6751 req->flags |= VNIC_RSS_CFG_REQ_FLAGS_IPSEC_HASH_TYPE_CFG_SUPPORT; 6752 } else { 6753 bnxt_fill_hw_rss_tbl(bp, vnic); 6754 } 6755 6756 if (bp->rss_hash_delta) { 6757 req->hash_type = cpu_to_le32(bp->rss_hash_delta); 6758 if (bp->rss_hash_cfg & bp->rss_hash_delta) 6759 req->flags |= VNIC_RSS_CFG_REQ_FLAGS_HASH_TYPE_INCLUDE; 6760 else 6761 req->flags |= VNIC_RSS_CFG_REQ_FLAGS_HASH_TYPE_EXCLUDE; 6762 } else { 6763 req->hash_type = cpu_to_le32(bp->rss_hash_cfg); 6764 } 6765 req->hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT; 6766 req->ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr); 6767 req->hash_key_tbl_addr = cpu_to_le64(vnic->rss_hash_key_dma_addr); 6768 } 6769 6770 static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, struct bnxt_vnic_info *vnic, 6771 bool set_rss) 6772 { 6773 struct hwrm_vnic_rss_cfg_input *req; 6774 int rc; 6775 6776 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) || 6777 vnic->fw_rss_cos_lb_ctx[0] == INVALID_HW_RING_ID) 6778 return 0; 6779 6780 rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_CFG); 6781 if (rc) 6782 return rc; 6783 6784 if (set_rss) 6785 __bnxt_hwrm_vnic_set_rss(bp, req, vnic); 6786 req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); 6787 return hwrm_req_send(bp, req); 6788 } 6789 6790 static int bnxt_hwrm_vnic_set_rss_p5(struct bnxt *bp, 6791 struct bnxt_vnic_info *vnic, bool set_rss) 6792 { 6793 struct hwrm_vnic_rss_cfg_input *req; 6794 dma_addr_t ring_tbl_map; 6795 u32 i, nr_ctxs; 6796 int rc; 6797 6798 rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_CFG); 6799 if (rc) 6800 return rc; 6801 6802 req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); 6803 if (!set_rss) 6804 return hwrm_req_send(bp, req); 6805 6806 __bnxt_hwrm_vnic_set_rss(bp, req, vnic); 6807 ring_tbl_map = vnic->rss_table_dma_addr; 6808 nr_ctxs = bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings); 6809 6810 hwrm_req_hold(bp, req); 6811 for (i = 0; i < nr_ctxs; ring_tbl_map += BNXT_RSS_TABLE_SIZE_P5, i++) { 6812 req->ring_grp_tbl_addr = cpu_to_le64(ring_tbl_map); 6813 req->ring_table_pair_index = i; 6814 req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[i]); 6815 rc = hwrm_req_send(bp, req); 6816 if (rc) 6817 goto exit; 6818 } 6819 6820 exit: 6821 hwrm_req_drop(bp, req); 6822 return rc; 6823 } 6824 6825 static void bnxt_hwrm_update_rss_hash_cfg(struct bnxt *bp) 6826 { 6827 struct bnxt_vnic_info *vnic = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 6828 struct hwrm_vnic_rss_qcfg_output *resp; 6829 struct hwrm_vnic_rss_qcfg_input *req; 6830 6831 if (hwrm_req_init(bp, req, HWRM_VNIC_RSS_QCFG)) 6832 return; 6833 6834 req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); 6835 /* all contexts configured to same hash_type, zero always exists */ 6836 req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); 6837 resp = hwrm_req_hold(bp, req); 6838 if (!hwrm_req_send(bp, req)) { 6839 bp->rss_hash_cfg = le32_to_cpu(resp->hash_type) ?: bp->rss_hash_cfg; 6840 bp->rss_hash_delta = 0; 6841 } 6842 hwrm_req_drop(bp, req); 6843 } 6844 6845 static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, struct bnxt_vnic_info *vnic) 6846 { 6847 u16 hds_thresh = (u16)bp->dev->cfg_pending->hds_thresh; 6848 struct hwrm_vnic_plcmodes_cfg_input *req; 6849 int rc; 6850 6851 rc = hwrm_req_init(bp, req, HWRM_VNIC_PLCMODES_CFG); 6852 if (rc) 6853 return rc; 6854 6855 req->flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT); 6856 req->enables = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID); 6857 req->jumbo_thresh = cpu_to_le16(bp->rx_buf_use_size); 6858 6859 if (!BNXT_RX_PAGE_MODE(bp) && (bp->flags & BNXT_FLAG_AGG_RINGS)) { 6860 req->flags |= cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 | 6861 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6); 6862 req->enables |= 6863 cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID); 6864 req->hds_threshold = cpu_to_le16(hds_thresh); 6865 } 6866 req->vnic_id = cpu_to_le32(vnic->fw_vnic_id); 6867 return hwrm_req_send(bp, req); 6868 } 6869 6870 static void bnxt_hwrm_vnic_ctx_free_one(struct bnxt *bp, 6871 struct bnxt_vnic_info *vnic, 6872 u16 ctx_idx) 6873 { 6874 struct hwrm_vnic_rss_cos_lb_ctx_free_input *req; 6875 6876 if (hwrm_req_init(bp, req, HWRM_VNIC_RSS_COS_LB_CTX_FREE)) 6877 return; 6878 6879 req->rss_cos_lb_ctx_id = 6880 cpu_to_le16(vnic->fw_rss_cos_lb_ctx[ctx_idx]); 6881 6882 hwrm_req_send(bp, req); 6883 vnic->fw_rss_cos_lb_ctx[ctx_idx] = INVALID_HW_RING_ID; 6884 } 6885 6886 static void bnxt_hwrm_vnic_ctx_free(struct bnxt *bp) 6887 { 6888 int i, j; 6889 6890 for (i = 0; i < bp->nr_vnics; i++) { 6891 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 6892 6893 for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) { 6894 if (vnic->fw_rss_cos_lb_ctx[j] != INVALID_HW_RING_ID) 6895 bnxt_hwrm_vnic_ctx_free_one(bp, vnic, j); 6896 } 6897 } 6898 bp->rsscos_nr_ctxs = 0; 6899 } 6900 6901 static int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, 6902 struct bnxt_vnic_info *vnic, u16 ctx_idx) 6903 { 6904 struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp; 6905 struct hwrm_vnic_rss_cos_lb_ctx_alloc_input *req; 6906 int rc; 6907 6908 rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_COS_LB_CTX_ALLOC); 6909 if (rc) 6910 return rc; 6911 6912 resp = hwrm_req_hold(bp, req); 6913 rc = hwrm_req_send(bp, req); 6914 if (!rc) 6915 vnic->fw_rss_cos_lb_ctx[ctx_idx] = 6916 le16_to_cpu(resp->rss_cos_lb_ctx_id); 6917 hwrm_req_drop(bp, req); 6918 6919 return rc; 6920 } 6921 6922 static u32 bnxt_get_roce_vnic_mode(struct bnxt *bp) 6923 { 6924 if (bp->flags & BNXT_FLAG_ROCE_MIRROR_CAP) 6925 return VNIC_CFG_REQ_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_MODE; 6926 return VNIC_CFG_REQ_FLAGS_ROCE_DUAL_VNIC_MODE; 6927 } 6928 6929 int bnxt_hwrm_vnic_cfg(struct bnxt *bp, struct bnxt_vnic_info *vnic) 6930 { 6931 struct bnxt_vnic_info *vnic0 = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 6932 struct hwrm_vnic_cfg_input *req; 6933 unsigned int ring = 0, grp_idx; 6934 u16 def_vlan = 0; 6935 int rc; 6936 6937 rc = hwrm_req_init(bp, req, HWRM_VNIC_CFG); 6938 if (rc) 6939 return rc; 6940 6941 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 6942 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[0]; 6943 6944 req->default_rx_ring_id = 6945 cpu_to_le16(rxr->rx_ring_struct.fw_ring_id); 6946 req->default_cmpl_ring_id = 6947 cpu_to_le16(bnxt_cp_ring_for_rx(bp, rxr)); 6948 req->enables = 6949 cpu_to_le32(VNIC_CFG_REQ_ENABLES_DEFAULT_RX_RING_ID | 6950 VNIC_CFG_REQ_ENABLES_DEFAULT_CMPL_RING_ID); 6951 goto vnic_mru; 6952 } 6953 req->enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP); 6954 /* Only RSS support for now TBD: COS & LB */ 6955 if (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID) { 6956 req->rss_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); 6957 req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE | 6958 VNIC_CFG_REQ_ENABLES_MRU); 6959 } else if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) { 6960 req->rss_rule = cpu_to_le16(vnic0->fw_rss_cos_lb_ctx[0]); 6961 req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE | 6962 VNIC_CFG_REQ_ENABLES_MRU); 6963 req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_RSS_DFLT_CR_MODE); 6964 } else { 6965 req->rss_rule = cpu_to_le16(0xffff); 6966 } 6967 6968 if (BNXT_CHIP_TYPE_NITRO_A0(bp) && 6969 (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID)) { 6970 req->cos_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[1]); 6971 req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_COS_RULE); 6972 } else { 6973 req->cos_rule = cpu_to_le16(0xffff); 6974 } 6975 6976 if (vnic->flags & BNXT_VNIC_RSS_FLAG) 6977 ring = 0; 6978 else if (vnic->flags & BNXT_VNIC_RFS_FLAG) 6979 ring = vnic->vnic_id - 1; 6980 else if ((vnic->vnic_id == 1) && BNXT_CHIP_TYPE_NITRO_A0(bp)) 6981 ring = bp->rx_nr_rings - 1; 6982 6983 grp_idx = bp->rx_ring[ring].bnapi->index; 6984 req->dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id); 6985 req->lb_rule = cpu_to_le16(0xffff); 6986 vnic_mru: 6987 vnic->mru = bp->dev->mtu + VLAN_ETH_HLEN; 6988 req->mru = cpu_to_le16(vnic->mru); 6989 6990 req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); 6991 #ifdef CONFIG_BNXT_SRIOV 6992 if (BNXT_VF(bp)) 6993 def_vlan = bp->vf.vlan; 6994 #endif 6995 if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan) 6996 req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE); 6997 if (vnic->vnic_id == BNXT_VNIC_DEFAULT && 6998 bnxt_ulp_registered(bp->edev[BNXT_AUXDEV_RDMA])) 6999 req->flags |= cpu_to_le32(bnxt_get_roce_vnic_mode(bp)); 7000 7001 return hwrm_req_send(bp, req); 7002 } 7003 7004 static void bnxt_hwrm_vnic_free_one(struct bnxt *bp, 7005 struct bnxt_vnic_info *vnic) 7006 { 7007 if (vnic->fw_vnic_id != INVALID_HW_RING_ID) { 7008 struct hwrm_vnic_free_input *req; 7009 7010 if (hwrm_req_init(bp, req, HWRM_VNIC_FREE)) 7011 return; 7012 7013 req->vnic_id = cpu_to_le32(vnic->fw_vnic_id); 7014 7015 hwrm_req_send(bp, req); 7016 vnic->fw_vnic_id = INVALID_HW_RING_ID; 7017 } 7018 } 7019 7020 static void bnxt_hwrm_vnic_free(struct bnxt *bp) 7021 { 7022 u16 i; 7023 7024 for (i = 0; i < bp->nr_vnics; i++) 7025 bnxt_hwrm_vnic_free_one(bp, &bp->vnic_info[i]); 7026 } 7027 7028 int bnxt_hwrm_vnic_alloc(struct bnxt *bp, struct bnxt_vnic_info *vnic, 7029 unsigned int start_rx_ring_idx, 7030 unsigned int nr_rings) 7031 { 7032 unsigned int i, j, grp_idx, end_idx = start_rx_ring_idx + nr_rings; 7033 struct hwrm_vnic_alloc_output *resp; 7034 struct hwrm_vnic_alloc_input *req; 7035 int rc; 7036 7037 rc = hwrm_req_init(bp, req, HWRM_VNIC_ALLOC); 7038 if (rc) 7039 return rc; 7040 7041 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 7042 goto vnic_no_ring_grps; 7043 7044 /* map ring groups to this vnic */ 7045 for (i = start_rx_ring_idx, j = 0; i < end_idx; i++, j++) { 7046 grp_idx = bp->rx_ring[i].bnapi->index; 7047 if (bp->grp_info[grp_idx].fw_grp_id == INVALID_HW_RING_ID) { 7048 netdev_err(bp->dev, "Not enough ring groups avail:%x req:%x\n", 7049 j, nr_rings); 7050 break; 7051 } 7052 vnic->fw_grp_ids[j] = bp->grp_info[grp_idx].fw_grp_id; 7053 } 7054 7055 vnic_no_ring_grps: 7056 for (i = 0; i < BNXT_MAX_CTX_PER_VNIC; i++) 7057 vnic->fw_rss_cos_lb_ctx[i] = INVALID_HW_RING_ID; 7058 if (vnic->vnic_id == BNXT_VNIC_DEFAULT) 7059 req->flags = cpu_to_le32(VNIC_ALLOC_REQ_FLAGS_DEFAULT); 7060 7061 resp = hwrm_req_hold(bp, req); 7062 rc = hwrm_req_send(bp, req); 7063 if (!rc) 7064 vnic->fw_vnic_id = le32_to_cpu(resp->vnic_id); 7065 hwrm_req_drop(bp, req); 7066 return rc; 7067 } 7068 7069 static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp) 7070 { 7071 struct hwrm_vnic_qcaps_output *resp; 7072 struct hwrm_vnic_qcaps_input *req; 7073 int rc; 7074 7075 bp->hw_ring_stats_size = sizeof(struct ctx_hw_stats); 7076 bp->flags &= ~BNXT_FLAG_ROCE_MIRROR_CAP; 7077 bp->rss_cap &= ~BNXT_RSS_CAP_NEW_RSS_CAP; 7078 if (bp->hwrm_spec_code < 0x10600) 7079 return 0; 7080 7081 rc = hwrm_req_init(bp, req, HWRM_VNIC_QCAPS); 7082 if (rc) 7083 return rc; 7084 7085 resp = hwrm_req_hold(bp, req); 7086 rc = hwrm_req_send(bp, req); 7087 if (!rc) { 7088 u32 flags = le32_to_cpu(resp->flags); 7089 7090 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && 7091 (flags & VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP)) 7092 bp->rss_cap |= BNXT_RSS_CAP_NEW_RSS_CAP; 7093 if (flags & 7094 VNIC_QCAPS_RESP_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_CAP) 7095 bp->flags |= BNXT_FLAG_ROCE_MIRROR_CAP; 7096 7097 /* Older P5 fw before EXT_HW_STATS support did not set 7098 * VLAN_STRIP_CAP properly. 7099 */ 7100 if ((flags & VNIC_QCAPS_RESP_FLAGS_VLAN_STRIP_CAP) || 7101 (BNXT_CHIP_P5(bp) && 7102 !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED))) 7103 bp->fw_cap |= BNXT_FW_CAP_VLAN_RX_STRIP; 7104 if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_HASH_TYPE_DELTA_CAP) 7105 bp->rss_cap |= BNXT_RSS_CAP_RSS_HASH_TYPE_DELTA; 7106 if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_PROF_TCAM_MODE_ENABLED) 7107 bp->rss_cap |= BNXT_RSS_CAP_RSS_TCAM; 7108 bp->max_tpa_v2 = le16_to_cpu(resp->max_aggs_supported); 7109 if (bp->max_tpa_v2) { 7110 if (BNXT_CHIP_P5(bp)) 7111 bp->hw_ring_stats_size = BNXT_RING_STATS_SIZE_P5; 7112 else 7113 bp->hw_ring_stats_size = BNXT_RING_STATS_SIZE_P7; 7114 } 7115 if (flags & VNIC_QCAPS_RESP_FLAGS_HW_TUNNEL_TPA_CAP) 7116 bp->fw_cap |= BNXT_FW_CAP_VNIC_TUNNEL_TPA; 7117 if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_IPSEC_AH_SPI_IPV4_CAP) 7118 bp->rss_cap |= BNXT_RSS_CAP_AH_V4_RSS_CAP; 7119 if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_IPSEC_AH_SPI_IPV6_CAP) 7120 bp->rss_cap |= BNXT_RSS_CAP_AH_V6_RSS_CAP; 7121 if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_IPSEC_ESP_SPI_IPV4_CAP) 7122 bp->rss_cap |= BNXT_RSS_CAP_ESP_V4_RSS_CAP; 7123 if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_IPSEC_ESP_SPI_IPV6_CAP) 7124 bp->rss_cap |= BNXT_RSS_CAP_ESP_V6_RSS_CAP; 7125 if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_IPV6_FLOW_LABEL_CAP) 7126 bp->rss_cap |= BNXT_RSS_CAP_IPV6_FLOW_LABEL_RSS_CAP; 7127 if (flags & VNIC_QCAPS_RESP_FLAGS_RE_FLUSH_CAP) 7128 bp->fw_cap |= BNXT_FW_CAP_VNIC_RE_FLUSH; 7129 } 7130 hwrm_req_drop(bp, req); 7131 return rc; 7132 } 7133 7134 static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp) 7135 { 7136 struct hwrm_ring_grp_alloc_output *resp; 7137 struct hwrm_ring_grp_alloc_input *req; 7138 int rc; 7139 u16 i; 7140 7141 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 7142 return 0; 7143 7144 rc = hwrm_req_init(bp, req, HWRM_RING_GRP_ALLOC); 7145 if (rc) 7146 return rc; 7147 7148 resp = hwrm_req_hold(bp, req); 7149 for (i = 0; i < bp->rx_nr_rings; i++) { 7150 unsigned int grp_idx = bp->rx_ring[i].bnapi->index; 7151 7152 req->cr = cpu_to_le16(bp->grp_info[grp_idx].cp_fw_ring_id); 7153 req->rr = cpu_to_le16(bp->grp_info[grp_idx].rx_fw_ring_id); 7154 req->ar = cpu_to_le16(bp->grp_info[grp_idx].agg_fw_ring_id); 7155 req->sc = cpu_to_le16(bp->grp_info[grp_idx].fw_stats_ctx); 7156 7157 rc = hwrm_req_send(bp, req); 7158 7159 if (rc) 7160 break; 7161 7162 bp->grp_info[grp_idx].fw_grp_id = 7163 le32_to_cpu(resp->ring_group_id); 7164 } 7165 hwrm_req_drop(bp, req); 7166 return rc; 7167 } 7168 7169 static void bnxt_hwrm_ring_grp_free(struct bnxt *bp) 7170 { 7171 struct hwrm_ring_grp_free_input *req; 7172 u16 i; 7173 7174 if (!bp->grp_info || (bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 7175 return; 7176 7177 if (hwrm_req_init(bp, req, HWRM_RING_GRP_FREE)) 7178 return; 7179 7180 hwrm_req_hold(bp, req); 7181 for (i = 0; i < bp->cp_nr_rings; i++) { 7182 if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID) 7183 continue; 7184 req->ring_group_id = 7185 cpu_to_le32(bp->grp_info[i].fw_grp_id); 7186 7187 hwrm_req_send(bp, req); 7188 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID; 7189 } 7190 hwrm_req_drop(bp, req); 7191 } 7192 7193 static void bnxt_set_rx_ring_params_p5(struct bnxt *bp, u32 ring_type, 7194 struct hwrm_ring_alloc_input *req, 7195 struct bnxt_rx_ring_info *rxr, 7196 struct bnxt_ring_struct *ring) 7197 { 7198 struct bnxt_ring_grp_info *grp_info = &bp->grp_info[ring->grp_idx]; 7199 u32 enables = RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID | 7200 RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID; 7201 7202 if (ring_type == HWRM_RING_ALLOC_AGG) { 7203 req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX_AGG; 7204 req->rx_ring_id = cpu_to_le16(grp_info->rx_fw_ring_id); 7205 req->rx_buf_size = cpu_to_le16(rxr->rx_page_size); 7206 enables |= RING_ALLOC_REQ_ENABLES_RX_RING_ID_VALID; 7207 } else { 7208 req->rx_buf_size = cpu_to_le16(bp->rx_buf_use_size); 7209 if (NET_IP_ALIGN == 2) 7210 req->flags = 7211 cpu_to_le16(RING_ALLOC_REQ_FLAGS_RX_SOP_PAD); 7212 } 7213 req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx); 7214 req->nq_ring_id = cpu_to_le16(grp_info->cp_fw_ring_id); 7215 req->enables |= cpu_to_le32(enables); 7216 } 7217 7218 static int hwrm_ring_alloc_send_msg(struct bnxt *bp, 7219 struct bnxt_rx_ring_info *rxr, 7220 struct bnxt_ring_struct *ring, 7221 u32 ring_type, u32 map_index) 7222 { 7223 struct hwrm_ring_alloc_output *resp; 7224 struct hwrm_ring_alloc_input *req; 7225 struct bnxt_ring_mem_info *rmem = &ring->ring_mem; 7226 struct bnxt_ring_grp_info *grp_info; 7227 int rc, err = 0; 7228 u16 ring_id; 7229 7230 rc = hwrm_req_init(bp, req, HWRM_RING_ALLOC); 7231 if (rc) 7232 goto exit; 7233 7234 req->enables = 0; 7235 if (rmem->nr_pages > 1) { 7236 req->page_tbl_addr = cpu_to_le64(rmem->pg_tbl_map); 7237 /* Page size is in log2 units */ 7238 req->page_size = BNXT_PAGE_SHIFT; 7239 req->page_tbl_depth = 1; 7240 } else { 7241 req->page_tbl_addr = cpu_to_le64(rmem->dma_arr[0]); 7242 } 7243 req->fbo = 0; 7244 /* Association of ring index with doorbell index and MSIX number */ 7245 req->logical_id = cpu_to_le16(map_index); 7246 7247 switch (ring_type) { 7248 case HWRM_RING_ALLOC_TX: { 7249 struct bnxt_tx_ring_info *txr; 7250 u16 flags = 0; 7251 7252 txr = container_of(ring, struct bnxt_tx_ring_info, 7253 tx_ring_struct); 7254 req->ring_type = RING_ALLOC_REQ_RING_TYPE_TX; 7255 /* Association of transmit ring with completion ring */ 7256 grp_info = &bp->grp_info[ring->grp_idx]; 7257 req->cmpl_ring_id = cpu_to_le16(bnxt_cp_ring_for_tx(bp, txr)); 7258 req->length = cpu_to_le32(bp->tx_ring_mask + 1); 7259 req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx); 7260 req->queue_id = cpu_to_le16(ring->queue_id); 7261 if (bp->flags & BNXT_FLAG_TX_COAL_CMPL) 7262 req->cmpl_coal_cnt = 7263 RING_ALLOC_REQ_CMPL_COAL_CNT_COAL_64; 7264 if ((bp->fw_cap & BNXT_FW_CAP_TX_TS_CMP) && bp->ptp_cfg) 7265 flags |= RING_ALLOC_REQ_FLAGS_TX_PKT_TS_CMPL_ENABLE; 7266 req->flags = cpu_to_le16(flags); 7267 break; 7268 } 7269 case HWRM_RING_ALLOC_RX: 7270 case HWRM_RING_ALLOC_AGG: 7271 req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX; 7272 req->length = (ring_type == HWRM_RING_ALLOC_RX) ? 7273 cpu_to_le32(bp->rx_ring_mask + 1) : 7274 cpu_to_le32(bp->rx_agg_ring_mask + 1); 7275 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 7276 bnxt_set_rx_ring_params_p5(bp, ring_type, req, 7277 rxr, ring); 7278 break; 7279 case HWRM_RING_ALLOC_CMPL: 7280 req->ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL; 7281 req->length = cpu_to_le32(bp->cp_ring_mask + 1); 7282 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7283 /* Association of cp ring with nq */ 7284 grp_info = &bp->grp_info[map_index]; 7285 req->nq_ring_id = cpu_to_le16(grp_info->cp_fw_ring_id); 7286 req->cq_handle = cpu_to_le64(ring->handle); 7287 req->enables |= cpu_to_le32( 7288 RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID); 7289 } else { 7290 req->int_mode = RING_ALLOC_REQ_INT_MODE_MSIX; 7291 } 7292 break; 7293 case HWRM_RING_ALLOC_NQ: 7294 req->ring_type = RING_ALLOC_REQ_RING_TYPE_NQ; 7295 req->length = cpu_to_le32(bp->cp_ring_mask + 1); 7296 req->int_mode = RING_ALLOC_REQ_INT_MODE_MSIX; 7297 break; 7298 default: 7299 netdev_err(bp->dev, "hwrm alloc invalid ring type %d\n", 7300 ring_type); 7301 return -EINVAL; 7302 } 7303 7304 resp = hwrm_req_hold(bp, req); 7305 rc = hwrm_req_send(bp, req); 7306 err = le16_to_cpu(resp->error_code); 7307 ring_id = le16_to_cpu(resp->ring_id); 7308 hwrm_req_drop(bp, req); 7309 7310 exit: 7311 if (rc || err) { 7312 netdev_err(bp->dev, "hwrm_ring_alloc type %d failed. rc:%x err:%x\n", 7313 ring_type, rc, err); 7314 return -EIO; 7315 } 7316 ring->fw_ring_id = ring_id; 7317 return rc; 7318 } 7319 7320 static int bnxt_hwrm_set_async_event_cr(struct bnxt *bp, int idx) 7321 { 7322 int rc; 7323 7324 if (BNXT_PF(bp)) { 7325 struct hwrm_func_cfg_input *req; 7326 7327 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req); 7328 if (rc) 7329 return rc; 7330 7331 req->fid = cpu_to_le16(0xffff); 7332 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_ASYNC_EVENT_CR); 7333 req->async_event_cr = cpu_to_le16(idx); 7334 return hwrm_req_send(bp, req); 7335 } else { 7336 struct hwrm_func_vf_cfg_input *req; 7337 7338 rc = hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG); 7339 if (rc) 7340 return rc; 7341 7342 req->enables = 7343 cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_ASYNC_EVENT_CR); 7344 req->async_event_cr = cpu_to_le16(idx); 7345 return hwrm_req_send(bp, req); 7346 } 7347 } 7348 7349 static void bnxt_set_db_mask(struct bnxt *bp, struct bnxt_db_info *db, 7350 u32 ring_type) 7351 { 7352 switch (ring_type) { 7353 case HWRM_RING_ALLOC_TX: 7354 db->db_ring_mask = bp->tx_ring_mask; 7355 break; 7356 case HWRM_RING_ALLOC_RX: 7357 db->db_ring_mask = bp->rx_ring_mask; 7358 break; 7359 case HWRM_RING_ALLOC_AGG: 7360 db->db_ring_mask = bp->rx_agg_ring_mask; 7361 break; 7362 case HWRM_RING_ALLOC_CMPL: 7363 case HWRM_RING_ALLOC_NQ: 7364 db->db_ring_mask = bp->cp_ring_mask; 7365 break; 7366 } 7367 if (bp->flags & BNXT_FLAG_CHIP_P7) { 7368 db->db_epoch_mask = db->db_ring_mask + 1; 7369 db->db_epoch_shift = DBR_EPOCH_SFT - ilog2(db->db_epoch_mask); 7370 } 7371 } 7372 7373 static void bnxt_set_db(struct bnxt *bp, struct bnxt_db_info *db, u32 ring_type, 7374 u32 map_idx, u32 xid) 7375 { 7376 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7377 switch (ring_type) { 7378 case HWRM_RING_ALLOC_TX: 7379 db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SQ; 7380 break; 7381 case HWRM_RING_ALLOC_RX: 7382 case HWRM_RING_ALLOC_AGG: 7383 db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SRQ; 7384 break; 7385 case HWRM_RING_ALLOC_CMPL: 7386 db->db_key64 = DBR_PATH_L2; 7387 break; 7388 case HWRM_RING_ALLOC_NQ: 7389 db->db_key64 = DBR_PATH_L2; 7390 break; 7391 } 7392 db->db_key64 |= (u64)xid << DBR_XID_SFT; 7393 7394 if (bp->flags & BNXT_FLAG_CHIP_P7) 7395 db->db_key64 |= DBR_VALID; 7396 7397 db->doorbell = bp->bar1 + bp->db_offset; 7398 } else { 7399 db->doorbell = bp->bar1 + map_idx * 0x80; 7400 switch (ring_type) { 7401 case HWRM_RING_ALLOC_TX: 7402 db->db_key32 = DB_KEY_TX; 7403 break; 7404 case HWRM_RING_ALLOC_RX: 7405 case HWRM_RING_ALLOC_AGG: 7406 db->db_key32 = DB_KEY_RX; 7407 break; 7408 case HWRM_RING_ALLOC_CMPL: 7409 db->db_key32 = DB_KEY_CP; 7410 break; 7411 } 7412 } 7413 bnxt_set_db_mask(bp, db, ring_type); 7414 } 7415 7416 static int bnxt_hwrm_rx_ring_alloc(struct bnxt *bp, 7417 struct bnxt_rx_ring_info *rxr) 7418 { 7419 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct; 7420 struct bnxt_napi *bnapi = rxr->bnapi; 7421 u32 type = HWRM_RING_ALLOC_RX; 7422 u32 map_idx = bnapi->index; 7423 int rc; 7424 7425 rc = hwrm_ring_alloc_send_msg(bp, rxr, ring, type, map_idx); 7426 if (rc) 7427 return rc; 7428 7429 bnxt_set_db(bp, &rxr->rx_db, type, map_idx, ring->fw_ring_id); 7430 bp->grp_info[map_idx].rx_fw_ring_id = ring->fw_ring_id; 7431 7432 return 0; 7433 } 7434 7435 static int bnxt_hwrm_rx_agg_ring_alloc(struct bnxt *bp, 7436 struct bnxt_rx_ring_info *rxr) 7437 { 7438 struct bnxt_ring_struct *ring = &rxr->rx_agg_ring_struct; 7439 u32 type = HWRM_RING_ALLOC_AGG; 7440 u32 grp_idx = ring->grp_idx; 7441 u32 map_idx; 7442 int rc; 7443 7444 map_idx = grp_idx + bp->rx_nr_rings; 7445 rc = hwrm_ring_alloc_send_msg(bp, rxr, ring, type, map_idx); 7446 if (rc) 7447 return rc; 7448 7449 bnxt_set_db(bp, &rxr->rx_agg_db, type, map_idx, 7450 ring->fw_ring_id); 7451 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 7452 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 7453 bp->grp_info[grp_idx].agg_fw_ring_id = ring->fw_ring_id; 7454 7455 return 0; 7456 } 7457 7458 static int bnxt_hwrm_cp_ring_alloc_p5(struct bnxt *bp, 7459 struct bnxt_cp_ring_info *cpr) 7460 { 7461 const u32 type = HWRM_RING_ALLOC_CMPL; 7462 struct bnxt_napi *bnapi = cpr->bnapi; 7463 struct bnxt_ring_struct *ring; 7464 u32 map_idx = bnapi->index; 7465 int rc; 7466 7467 ring = &cpr->cp_ring_struct; 7468 ring->handle = BNXT_SET_NQ_HDL(cpr); 7469 rc = hwrm_ring_alloc_send_msg(bp, NULL, ring, type, map_idx); 7470 if (rc) 7471 return rc; 7472 bnxt_set_db(bp, &cpr->cp_db, type, map_idx, ring->fw_ring_id); 7473 bnxt_db_cq(bp, &cpr->cp_db, cpr->cp_raw_cons); 7474 return 0; 7475 } 7476 7477 static int bnxt_hwrm_tx_ring_alloc(struct bnxt *bp, 7478 struct bnxt_tx_ring_info *txr, u32 tx_idx) 7479 { 7480 struct bnxt_ring_struct *ring = &txr->tx_ring_struct; 7481 const u32 type = HWRM_RING_ALLOC_TX; 7482 int rc; 7483 7484 rc = hwrm_ring_alloc_send_msg(bp, NULL, ring, type, tx_idx); 7485 if (rc) 7486 return rc; 7487 bnxt_set_db(bp, &txr->tx_db, type, tx_idx, ring->fw_ring_id); 7488 return 0; 7489 } 7490 7491 static int bnxt_hwrm_ring_alloc(struct bnxt *bp) 7492 { 7493 bool agg_rings = !!(bp->flags & BNXT_FLAG_AGG_RINGS); 7494 int i, rc = 0; 7495 u32 type; 7496 7497 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 7498 type = HWRM_RING_ALLOC_NQ; 7499 else 7500 type = HWRM_RING_ALLOC_CMPL; 7501 for (i = 0; i < bp->cp_nr_rings; i++) { 7502 struct bnxt_napi *bnapi = bp->bnapi[i]; 7503 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 7504 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 7505 u32 map_idx = ring->map_idx; 7506 unsigned int vector; 7507 7508 vector = bp->irq_tbl[map_idx].vector; 7509 disable_irq_nosync(vector); 7510 rc = hwrm_ring_alloc_send_msg(bp, NULL, ring, type, map_idx); 7511 if (rc) { 7512 enable_irq(vector); 7513 goto err_out; 7514 } 7515 bnxt_set_db(bp, &cpr->cp_db, type, map_idx, ring->fw_ring_id); 7516 bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons); 7517 enable_irq(vector); 7518 bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id; 7519 7520 if (!i) { 7521 rc = bnxt_hwrm_set_async_event_cr(bp, ring->fw_ring_id); 7522 if (rc) 7523 netdev_warn(bp->dev, "Failed to set async event completion ring.\n"); 7524 } 7525 } 7526 7527 for (i = 0; i < bp->tx_nr_rings; i++) { 7528 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 7529 7530 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7531 rc = bnxt_hwrm_cp_ring_alloc_p5(bp, txr->tx_cpr); 7532 if (rc) 7533 goto err_out; 7534 } 7535 rc = bnxt_hwrm_tx_ring_alloc(bp, txr, i); 7536 if (rc) 7537 goto err_out; 7538 } 7539 7540 for (i = 0; i < bp->rx_nr_rings; i++) { 7541 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 7542 7543 rc = bnxt_hwrm_rx_ring_alloc(bp, rxr); 7544 if (rc) 7545 goto err_out; 7546 /* If we have agg rings, post agg buffers first. */ 7547 if (!agg_rings) 7548 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 7549 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7550 rc = bnxt_hwrm_cp_ring_alloc_p5(bp, rxr->rx_cpr); 7551 if (rc) 7552 goto err_out; 7553 } 7554 } 7555 7556 if (agg_rings) { 7557 for (i = 0; i < bp->rx_nr_rings; i++) { 7558 rc = bnxt_hwrm_rx_agg_ring_alloc(bp, &bp->rx_ring[i]); 7559 if (rc) 7560 goto err_out; 7561 } 7562 } 7563 err_out: 7564 return rc; 7565 } 7566 7567 static void bnxt_cancel_dim(struct bnxt *bp) 7568 { 7569 int i; 7570 7571 /* DIM work is initialized in bnxt_enable_napi(). Proceed only 7572 * if NAPI is enabled. 7573 */ 7574 if (!bp->bnapi || test_bit(BNXT_STATE_NAPI_DISABLED, &bp->state)) 7575 return; 7576 7577 /* Make sure NAPI sees that the VNIC is disabled */ 7578 synchronize_net(); 7579 for (i = 0; i < bp->rx_nr_rings; i++) { 7580 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 7581 struct bnxt_napi *bnapi = rxr->bnapi; 7582 7583 cancel_work_sync(&bnapi->cp_ring.dim.work); 7584 } 7585 } 7586 7587 static int hwrm_ring_free_send_msg(struct bnxt *bp, 7588 struct bnxt_ring_struct *ring, 7589 u32 ring_type, int cmpl_ring_id) 7590 { 7591 struct hwrm_ring_free_output *resp; 7592 struct hwrm_ring_free_input *req; 7593 u16 error_code = 0; 7594 int rc; 7595 7596 if (BNXT_NO_FW_ACCESS(bp)) 7597 return 0; 7598 7599 rc = hwrm_req_init(bp, req, HWRM_RING_FREE); 7600 if (rc) 7601 goto exit; 7602 7603 req->cmpl_ring = cpu_to_le16(cmpl_ring_id); 7604 req->ring_type = ring_type; 7605 req->ring_id = cpu_to_le16(ring->fw_ring_id); 7606 7607 resp = hwrm_req_hold(bp, req); 7608 rc = hwrm_req_send(bp, req); 7609 error_code = le16_to_cpu(resp->error_code); 7610 hwrm_req_drop(bp, req); 7611 exit: 7612 if (rc || error_code) { 7613 netdev_err(bp->dev, "hwrm_ring_free type %d failed. rc:%x err:%x\n", 7614 ring_type, rc, error_code); 7615 return -EIO; 7616 } 7617 return 0; 7618 } 7619 7620 static void bnxt_hwrm_tx_ring_free(struct bnxt *bp, 7621 struct bnxt_tx_ring_info *txr, 7622 bool close_path) 7623 { 7624 struct bnxt_ring_struct *ring = &txr->tx_ring_struct; 7625 u32 cmpl_ring_id; 7626 7627 if (ring->fw_ring_id == INVALID_HW_RING_ID) 7628 return; 7629 7630 cmpl_ring_id = close_path ? bnxt_cp_ring_for_tx(bp, txr) : 7631 INVALID_HW_RING_ID; 7632 hwrm_ring_free_send_msg(bp, ring, RING_FREE_REQ_RING_TYPE_TX, 7633 cmpl_ring_id); 7634 ring->fw_ring_id = INVALID_HW_RING_ID; 7635 } 7636 7637 static void bnxt_hwrm_rx_ring_free(struct bnxt *bp, 7638 struct bnxt_rx_ring_info *rxr, 7639 bool close_path) 7640 { 7641 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct; 7642 u32 grp_idx = rxr->bnapi->index; 7643 u32 cmpl_ring_id; 7644 7645 if (ring->fw_ring_id == INVALID_HW_RING_ID) 7646 return; 7647 7648 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr); 7649 hwrm_ring_free_send_msg(bp, ring, 7650 RING_FREE_REQ_RING_TYPE_RX, 7651 close_path ? cmpl_ring_id : 7652 INVALID_HW_RING_ID); 7653 ring->fw_ring_id = INVALID_HW_RING_ID; 7654 bp->grp_info[grp_idx].rx_fw_ring_id = INVALID_HW_RING_ID; 7655 } 7656 7657 static void bnxt_hwrm_rx_agg_ring_free(struct bnxt *bp, 7658 struct bnxt_rx_ring_info *rxr, 7659 bool close_path) 7660 { 7661 struct bnxt_ring_struct *ring = &rxr->rx_agg_ring_struct; 7662 u32 grp_idx = rxr->bnapi->index; 7663 u32 type, cmpl_ring_id; 7664 7665 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 7666 type = RING_FREE_REQ_RING_TYPE_RX_AGG; 7667 else 7668 type = RING_FREE_REQ_RING_TYPE_RX; 7669 7670 if (ring->fw_ring_id == INVALID_HW_RING_ID) 7671 return; 7672 7673 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr); 7674 hwrm_ring_free_send_msg(bp, ring, type, 7675 close_path ? cmpl_ring_id : 7676 INVALID_HW_RING_ID); 7677 ring->fw_ring_id = INVALID_HW_RING_ID; 7678 bp->grp_info[grp_idx].agg_fw_ring_id = INVALID_HW_RING_ID; 7679 } 7680 7681 static void bnxt_hwrm_cp_ring_free(struct bnxt *bp, 7682 struct bnxt_cp_ring_info *cpr) 7683 { 7684 struct bnxt_ring_struct *ring; 7685 7686 ring = &cpr->cp_ring_struct; 7687 if (ring->fw_ring_id == INVALID_HW_RING_ID) 7688 return; 7689 7690 hwrm_ring_free_send_msg(bp, ring, RING_FREE_REQ_RING_TYPE_L2_CMPL, 7691 INVALID_HW_RING_ID); 7692 ring->fw_ring_id = INVALID_HW_RING_ID; 7693 } 7694 7695 static void bnxt_clear_one_cp_ring(struct bnxt *bp, struct bnxt_cp_ring_info *cpr) 7696 { 7697 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 7698 int i, size = ring->ring_mem.page_size; 7699 7700 cpr->cp_raw_cons = 0; 7701 cpr->toggle = 0; 7702 7703 for (i = 0; i < bp->cp_nr_pages; i++) 7704 if (cpr->cp_desc_ring[i]) 7705 memset(cpr->cp_desc_ring[i], 0, size); 7706 } 7707 7708 static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path) 7709 { 7710 u32 type; 7711 int i; 7712 7713 if (!bp->bnapi) 7714 return; 7715 7716 for (i = 0; i < bp->tx_nr_rings; i++) 7717 bnxt_hwrm_tx_ring_free(bp, &bp->tx_ring[i], close_path); 7718 7719 bnxt_cancel_dim(bp); 7720 for (i = 0; i < bp->rx_nr_rings; i++) { 7721 bnxt_hwrm_rx_ring_free(bp, &bp->rx_ring[i], close_path); 7722 bnxt_hwrm_rx_agg_ring_free(bp, &bp->rx_ring[i], close_path); 7723 } 7724 7725 /* The completion rings are about to be freed. After that the 7726 * IRQ doorbell will not work anymore. So we need to disable 7727 * IRQ here. 7728 */ 7729 bnxt_disable_int_sync(bp); 7730 7731 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 7732 type = RING_FREE_REQ_RING_TYPE_NQ; 7733 else 7734 type = RING_FREE_REQ_RING_TYPE_L2_CMPL; 7735 for (i = 0; i < bp->cp_nr_rings; i++) { 7736 struct bnxt_napi *bnapi = bp->bnapi[i]; 7737 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 7738 struct bnxt_ring_struct *ring; 7739 int j; 7740 7741 for (j = 0; j < cpr->cp_ring_count && cpr->cp_ring_arr; j++) 7742 bnxt_hwrm_cp_ring_free(bp, &cpr->cp_ring_arr[j]); 7743 7744 ring = &cpr->cp_ring_struct; 7745 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 7746 hwrm_ring_free_send_msg(bp, ring, type, 7747 INVALID_HW_RING_ID); 7748 ring->fw_ring_id = INVALID_HW_RING_ID; 7749 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID; 7750 } 7751 } 7752 } 7753 7754 static int __bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, 7755 bool shared); 7756 static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, 7757 bool shared); 7758 7759 static int bnxt_hwrm_get_rings(struct bnxt *bp) 7760 { 7761 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 7762 struct hwrm_func_qcfg_output *resp; 7763 struct hwrm_func_qcfg_input *req; 7764 int rc; 7765 7766 if (bp->hwrm_spec_code < 0x10601) 7767 return 0; 7768 7769 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); 7770 if (rc) 7771 return rc; 7772 7773 req->fid = cpu_to_le16(0xffff); 7774 resp = hwrm_req_hold(bp, req); 7775 rc = hwrm_req_send(bp, req); 7776 if (rc) { 7777 hwrm_req_drop(bp, req); 7778 return rc; 7779 } 7780 7781 hw_resc->resv_tx_rings = le16_to_cpu(resp->alloc_tx_rings); 7782 if (BNXT_NEW_RM(bp)) { 7783 u16 cp, stats; 7784 7785 hw_resc->resv_rx_rings = le16_to_cpu(resp->alloc_rx_rings); 7786 hw_resc->resv_hw_ring_grps = 7787 le32_to_cpu(resp->alloc_hw_ring_grps); 7788 hw_resc->resv_vnics = le16_to_cpu(resp->alloc_vnics); 7789 hw_resc->resv_rsscos_ctxs = le16_to_cpu(resp->alloc_rsscos_ctx); 7790 cp = le16_to_cpu(resp->alloc_cmpl_rings); 7791 stats = le16_to_cpu(resp->alloc_stat_ctx); 7792 hw_resc->resv_irqs = cp; 7793 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7794 int rx = hw_resc->resv_rx_rings; 7795 int tx = hw_resc->resv_tx_rings; 7796 7797 if (bp->flags & BNXT_FLAG_AGG_RINGS) 7798 rx >>= 1; 7799 if (cp < (rx + tx)) { 7800 rc = __bnxt_trim_rings(bp, &rx, &tx, cp, false); 7801 if (rc) 7802 goto get_rings_exit; 7803 if (bp->flags & BNXT_FLAG_AGG_RINGS) 7804 rx <<= 1; 7805 hw_resc->resv_rx_rings = rx; 7806 hw_resc->resv_tx_rings = tx; 7807 } 7808 hw_resc->resv_irqs = le16_to_cpu(resp->alloc_msix); 7809 hw_resc->resv_hw_ring_grps = rx; 7810 } 7811 hw_resc->resv_cp_rings = cp; 7812 hw_resc->resv_stat_ctxs = stats; 7813 } 7814 get_rings_exit: 7815 hwrm_req_drop(bp, req); 7816 return rc; 7817 } 7818 7819 int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings) 7820 { 7821 struct hwrm_func_qcfg_output *resp; 7822 struct hwrm_func_qcfg_input *req; 7823 int rc; 7824 7825 if (bp->hwrm_spec_code < 0x10601) 7826 return 0; 7827 7828 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); 7829 if (rc) 7830 return rc; 7831 7832 req->fid = cpu_to_le16(fid); 7833 resp = hwrm_req_hold(bp, req); 7834 rc = hwrm_req_send(bp, req); 7835 if (!rc) 7836 *tx_rings = le16_to_cpu(resp->alloc_tx_rings); 7837 7838 hwrm_req_drop(bp, req); 7839 return rc; 7840 } 7841 7842 static bool bnxt_rfs_supported(struct bnxt *bp); 7843 7844 static struct hwrm_func_cfg_input * 7845 __bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 7846 { 7847 struct hwrm_func_cfg_input *req; 7848 u32 enables = 0; 7849 7850 if (bnxt_hwrm_func_cfg_short_req_init(bp, &req)) 7851 return NULL; 7852 7853 req->fid = cpu_to_le16(0xffff); 7854 enables |= hwr->tx ? FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS : 0; 7855 req->num_tx_rings = cpu_to_le16(hwr->tx); 7856 if (BNXT_NEW_RM(bp)) { 7857 enables |= hwr->rx ? FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS : 0; 7858 enables |= hwr->stat ? FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0; 7859 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7860 enables |= hwr->cp ? FUNC_CFG_REQ_ENABLES_NUM_MSIX : 0; 7861 enables |= hwr->cp_p5 ? 7862 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; 7863 } else { 7864 enables |= hwr->cp ? 7865 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; 7866 enables |= hwr->grp ? 7867 FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0; 7868 } 7869 enables |= hwr->vnic ? FUNC_CFG_REQ_ENABLES_NUM_VNICS : 0; 7870 enables |= hwr->rss_ctx ? FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 7871 0; 7872 req->num_rx_rings = cpu_to_le16(hwr->rx); 7873 req->num_rsscos_ctxs = cpu_to_le16(hwr->rss_ctx); 7874 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7875 req->num_cmpl_rings = cpu_to_le16(hwr->cp_p5); 7876 req->num_msix = cpu_to_le16(hwr->cp); 7877 } else { 7878 req->num_cmpl_rings = cpu_to_le16(hwr->cp); 7879 req->num_hw_ring_grps = cpu_to_le16(hwr->grp); 7880 } 7881 req->num_stat_ctxs = cpu_to_le16(hwr->stat); 7882 req->num_vnics = cpu_to_le16(hwr->vnic); 7883 } 7884 req->enables = cpu_to_le32(enables); 7885 return req; 7886 } 7887 7888 static struct hwrm_func_vf_cfg_input * 7889 __bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 7890 { 7891 struct hwrm_func_vf_cfg_input *req; 7892 u32 enables = 0; 7893 7894 if (hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG)) 7895 return NULL; 7896 7897 enables |= hwr->tx ? FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS : 0; 7898 enables |= hwr->rx ? FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS | 7899 FUNC_VF_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0; 7900 enables |= hwr->stat ? FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0; 7901 enables |= hwr->rss_ctx ? FUNC_VF_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0; 7902 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7903 enables |= hwr->cp_p5 ? 7904 FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; 7905 } else { 7906 enables |= hwr->cp ? FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; 7907 enables |= hwr->grp ? 7908 FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0; 7909 } 7910 enables |= hwr->vnic ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0; 7911 enables |= FUNC_VF_CFG_REQ_ENABLES_NUM_L2_CTXS; 7912 7913 req->num_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX); 7914 req->num_tx_rings = cpu_to_le16(hwr->tx); 7915 req->num_rx_rings = cpu_to_le16(hwr->rx); 7916 req->num_rsscos_ctxs = cpu_to_le16(hwr->rss_ctx); 7917 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 7918 req->num_cmpl_rings = cpu_to_le16(hwr->cp_p5); 7919 } else { 7920 req->num_cmpl_rings = cpu_to_le16(hwr->cp); 7921 req->num_hw_ring_grps = cpu_to_le16(hwr->grp); 7922 } 7923 req->num_stat_ctxs = cpu_to_le16(hwr->stat); 7924 req->num_vnics = cpu_to_le16(hwr->vnic); 7925 7926 req->enables = cpu_to_le32(enables); 7927 return req; 7928 } 7929 7930 static int 7931 bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 7932 { 7933 struct hwrm_func_cfg_input *req; 7934 int rc; 7935 7936 req = __bnxt_hwrm_reserve_pf_rings(bp, hwr); 7937 if (!req) 7938 return -ENOMEM; 7939 7940 if (!req->enables) { 7941 hwrm_req_drop(bp, req); 7942 return 0; 7943 } 7944 7945 rc = hwrm_req_send(bp, req); 7946 if (rc) 7947 return rc; 7948 7949 if (bp->hwrm_spec_code < 0x10601) 7950 bp->hw_resc.resv_tx_rings = hwr->tx; 7951 7952 return bnxt_hwrm_get_rings(bp); 7953 } 7954 7955 static int 7956 bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 7957 { 7958 struct hwrm_func_vf_cfg_input *req; 7959 int rc; 7960 7961 if (!BNXT_NEW_RM(bp)) { 7962 bp->hw_resc.resv_tx_rings = hwr->tx; 7963 return 0; 7964 } 7965 7966 req = __bnxt_hwrm_reserve_vf_rings(bp, hwr); 7967 if (!req) 7968 return -ENOMEM; 7969 7970 rc = hwrm_req_send(bp, req); 7971 if (rc) 7972 return rc; 7973 7974 return bnxt_hwrm_get_rings(bp); 7975 } 7976 7977 static int bnxt_hwrm_reserve_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 7978 { 7979 if (BNXT_PF(bp)) 7980 return bnxt_hwrm_reserve_pf_rings(bp, hwr); 7981 else 7982 return bnxt_hwrm_reserve_vf_rings(bp, hwr); 7983 } 7984 7985 int bnxt_nq_rings_in_use(struct bnxt *bp) 7986 { 7987 return bp->cp_nr_rings + bnxt_get_ulp_msix_num(bp); 7988 } 7989 7990 static int bnxt_cp_rings_in_use(struct bnxt *bp) 7991 { 7992 int cp; 7993 7994 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 7995 return bnxt_nq_rings_in_use(bp); 7996 7997 cp = bp->tx_nr_rings + bp->rx_nr_rings; 7998 return cp; 7999 } 8000 8001 static int bnxt_get_func_stat_ctxs(struct bnxt *bp) 8002 { 8003 return bp->cp_nr_rings + bnxt_get_ulp_stat_ctxs(bp); 8004 } 8005 8006 static int bnxt_get_total_rss_ctxs(struct bnxt *bp, struct bnxt_hw_rings *hwr) 8007 { 8008 if (!hwr->grp) 8009 return 0; 8010 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 8011 int rss_ctx = bnxt_get_nr_rss_ctxs(bp, hwr->grp); 8012 8013 if (BNXT_SUPPORTS_NTUPLE_VNIC(bp)) 8014 rss_ctx *= hwr->vnic; 8015 return rss_ctx; 8016 } 8017 if (BNXT_VF(bp)) 8018 return BNXT_VF_MAX_RSS_CTX; 8019 if (!(bp->rss_cap & BNXT_RSS_CAP_NEW_RSS_CAP) && bnxt_rfs_supported(bp)) 8020 return hwr->grp + 1; 8021 return 1; 8022 } 8023 8024 /* Check if a default RSS map needs to be setup. This function is only 8025 * used on older firmware that does not require reserving RX rings. 8026 */ 8027 static void bnxt_check_rss_tbl_no_rmgr(struct bnxt *bp) 8028 { 8029 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 8030 8031 /* The RSS map is valid for RX rings set to resv_rx_rings */ 8032 if (hw_resc->resv_rx_rings != bp->rx_nr_rings) { 8033 hw_resc->resv_rx_rings = bp->rx_nr_rings; 8034 if (!netif_is_rxfh_configured(bp->dev)) 8035 bnxt_set_dflt_rss_indir_tbl(bp, NULL); 8036 } 8037 } 8038 8039 static int bnxt_get_total_vnics(struct bnxt *bp, int rx_rings) 8040 { 8041 if (bp->flags & BNXT_FLAG_RFS) { 8042 if (BNXT_SUPPORTS_NTUPLE_VNIC(bp)) 8043 return 2 + bp->num_rss_ctx; 8044 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 8045 return rx_rings + 1; 8046 } 8047 return 1; 8048 } 8049 8050 static void bnxt_get_total_resources(struct bnxt *bp, struct bnxt_hw_rings *hwr) 8051 { 8052 hwr->cp = bnxt_nq_rings_in_use(bp); 8053 hwr->cp_p5 = 0; 8054 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 8055 hwr->cp_p5 = bnxt_cp_rings_in_use(bp); 8056 hwr->tx = bp->tx_nr_rings; 8057 hwr->rx = bp->rx_nr_rings; 8058 hwr->grp = hwr->rx; 8059 hwr->vnic = bnxt_get_total_vnics(bp, hwr->rx); 8060 hwr->rss_ctx = bnxt_get_total_rss_ctxs(bp, hwr); 8061 if (bp->flags & BNXT_FLAG_AGG_RINGS) 8062 hwr->rx <<= 1; 8063 hwr->stat = bnxt_get_func_stat_ctxs(bp); 8064 } 8065 8066 static bool bnxt_need_reserve_rings(struct bnxt *bp) 8067 { 8068 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 8069 struct bnxt_hw_rings hwr; 8070 8071 bnxt_get_total_resources(bp, &hwr); 8072 8073 /* Old firmware does not need RX ring reservations but we still 8074 * need to setup a default RSS map when needed. With new firmware 8075 * we go through RX ring reservations first and then set up the 8076 * RSS map for the successfully reserved RX rings when needed. 8077 */ 8078 if (!BNXT_NEW_RM(bp)) 8079 bnxt_check_rss_tbl_no_rmgr(bp); 8080 8081 if (hw_resc->resv_tx_rings != hwr.tx && bp->hwrm_spec_code >= 0x10601) 8082 return true; 8083 8084 if (!BNXT_NEW_RM(bp)) 8085 return false; 8086 8087 if (hw_resc->resv_rx_rings != hwr.rx || 8088 hw_resc->resv_vnics != hwr.vnic || 8089 hw_resc->resv_stat_ctxs != hwr.stat || 8090 hw_resc->resv_rsscos_ctxs != hwr.rss_ctx || 8091 (hw_resc->resv_hw_ring_grps != hwr.grp && 8092 !(bp->flags & BNXT_FLAG_CHIP_P5_PLUS))) 8093 return true; 8094 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 8095 if (hw_resc->resv_cp_rings != hwr.cp_p5) 8096 return true; 8097 } else if (hw_resc->resv_cp_rings != hwr.cp) { 8098 return true; 8099 } 8100 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && BNXT_PF(bp) && 8101 hw_resc->resv_irqs != hwr.cp) 8102 return true; 8103 return false; 8104 } 8105 8106 static void bnxt_copy_reserved_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 8107 { 8108 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 8109 8110 hwr->tx = hw_resc->resv_tx_rings; 8111 if (BNXT_NEW_RM(bp)) { 8112 hwr->rx = hw_resc->resv_rx_rings; 8113 hwr->cp = hw_resc->resv_irqs; 8114 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 8115 hwr->cp_p5 = hw_resc->resv_cp_rings; 8116 hwr->grp = hw_resc->resv_hw_ring_grps; 8117 hwr->vnic = hw_resc->resv_vnics; 8118 hwr->stat = hw_resc->resv_stat_ctxs; 8119 hwr->rss_ctx = hw_resc->resv_rsscos_ctxs; 8120 } 8121 } 8122 8123 static bool bnxt_rings_ok(struct bnxt *bp, struct bnxt_hw_rings *hwr) 8124 { 8125 return hwr->tx && hwr->rx && hwr->cp && hwr->grp && hwr->vnic && 8126 hwr->stat && (hwr->cp_p5 || !(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)); 8127 } 8128 8129 static int bnxt_get_avail_msix(struct bnxt *bp, int num); 8130 8131 static int __bnxt_reserve_rings(struct bnxt *bp) 8132 { 8133 struct bnxt_en_dev *edev = bp->edev[BNXT_AUXDEV_RDMA]; 8134 struct bnxt_hw_rings hwr = {0}; 8135 int rx_rings, old_rx_rings, rc; 8136 int cp = bp->cp_nr_rings; 8137 int ulp_msix = 0; 8138 bool sh = false; 8139 int tx_cp; 8140 8141 if (!bnxt_need_reserve_rings(bp)) 8142 return 0; 8143 8144 if (BNXT_NEW_RM(bp) && !bnxt_ulp_registered(edev)) { 8145 ulp_msix = bnxt_get_avail_msix(bp, bp->ulp_num_msix_want); 8146 if (!ulp_msix) 8147 bnxt_set_ulp_stat_ctxs(bp, 0); 8148 else 8149 bnxt_set_dflt_ulp_stat_ctxs(bp); 8150 8151 if (ulp_msix > bp->ulp_num_msix_want) 8152 ulp_msix = bp->ulp_num_msix_want; 8153 hwr.cp = cp + ulp_msix; 8154 } else { 8155 hwr.cp = bnxt_nq_rings_in_use(bp); 8156 } 8157 8158 hwr.tx = bp->tx_nr_rings; 8159 hwr.rx = bp->rx_nr_rings; 8160 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 8161 sh = true; 8162 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 8163 hwr.cp_p5 = hwr.rx + hwr.tx; 8164 8165 hwr.vnic = bnxt_get_total_vnics(bp, hwr.rx); 8166 8167 if (bp->flags & BNXT_FLAG_AGG_RINGS) 8168 hwr.rx <<= 1; 8169 hwr.grp = bp->rx_nr_rings; 8170 hwr.rss_ctx = bnxt_get_total_rss_ctxs(bp, &hwr); 8171 hwr.stat = bnxt_get_func_stat_ctxs(bp); 8172 old_rx_rings = bp->hw_resc.resv_rx_rings; 8173 8174 rc = bnxt_hwrm_reserve_rings(bp, &hwr); 8175 if (rc) 8176 return rc; 8177 8178 bnxt_copy_reserved_rings(bp, &hwr); 8179 8180 rx_rings = hwr.rx; 8181 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 8182 if (hwr.rx >= 2) { 8183 rx_rings = hwr.rx >> 1; 8184 } else { 8185 if (netif_running(bp->dev)) 8186 return -ENOMEM; 8187 8188 bp->flags &= ~BNXT_FLAG_AGG_RINGS; 8189 bp->flags |= BNXT_FLAG_NO_AGG_RINGS; 8190 bp->dev->hw_features &= ~NETIF_F_LRO; 8191 bp->dev->features &= ~NETIF_F_LRO; 8192 bnxt_set_ring_params(bp); 8193 } 8194 } 8195 rx_rings = min_t(int, rx_rings, hwr.grp); 8196 hwr.cp = min_t(int, hwr.cp, bp->cp_nr_rings); 8197 if (bnxt_ulp_registered(edev) && hwr.stat > bnxt_get_ulp_stat_ctxs(bp)) 8198 hwr.stat -= bnxt_get_ulp_stat_ctxs(bp); 8199 hwr.cp = min_t(int, hwr.cp, hwr.stat); 8200 rc = bnxt_trim_rings(bp, &rx_rings, &hwr.tx, hwr.cp, sh); 8201 if (bp->flags & BNXT_FLAG_AGG_RINGS) 8202 hwr.rx = rx_rings << 1; 8203 tx_cp = bnxt_num_tx_to_cp(bp, hwr.tx); 8204 hwr.cp = sh ? max_t(int, tx_cp, rx_rings) : tx_cp + rx_rings; 8205 if (hwr.tx != bp->tx_nr_rings) { 8206 netdev_warn(bp->dev, 8207 "Able to reserve only %d out of %d requested TX rings\n", 8208 hwr.tx, bp->tx_nr_rings); 8209 } 8210 bp->tx_nr_rings = hwr.tx; 8211 8212 /* If we cannot reserve all the RX rings, reset the RSS map only 8213 * if absolutely necessary 8214 */ 8215 if (rx_rings != bp->rx_nr_rings) { 8216 netdev_warn(bp->dev, "Able to reserve only %d out of %d requested RX rings\n", 8217 rx_rings, bp->rx_nr_rings); 8218 if (netif_is_rxfh_configured(bp->dev) && 8219 (bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings) != 8220 bnxt_get_nr_rss_ctxs(bp, rx_rings) || 8221 bnxt_get_max_rss_ring(bp) >= rx_rings)) { 8222 ethtool_rxfh_indir_lost(bp->dev); 8223 } 8224 } 8225 bp->rx_nr_rings = rx_rings; 8226 bp->cp_nr_rings = hwr.cp; 8227 8228 /* Fall back if we cannot reserve enough HW RSS contexts */ 8229 if ((bp->rss_cap & BNXT_RSS_CAP_LARGE_RSS_CTX) && 8230 hwr.rss_ctx < bnxt_get_total_rss_ctxs(bp, &hwr)) 8231 bp->rss_cap &= ~BNXT_RSS_CAP_LARGE_RSS_CTX; 8232 8233 if (!bnxt_rings_ok(bp, &hwr)) 8234 return -ENOMEM; 8235 8236 if (old_rx_rings != bp->hw_resc.resv_rx_rings && 8237 !netif_is_rxfh_configured(bp->dev)) 8238 bnxt_set_dflt_rss_indir_tbl(bp, NULL); 8239 8240 if (!bnxt_ulp_registered(edev) && BNXT_NEW_RM(bp)) { 8241 int resv_msix, resv_ctx, ulp_ctxs; 8242 struct bnxt_hw_resc *hw_resc; 8243 8244 hw_resc = &bp->hw_resc; 8245 resv_msix = hw_resc->resv_irqs - bp->cp_nr_rings; 8246 ulp_msix = min_t(int, resv_msix, ulp_msix); 8247 bnxt_set_ulp_msix_num(bp, ulp_msix); 8248 resv_ctx = hw_resc->resv_stat_ctxs - bp->cp_nr_rings; 8249 ulp_ctxs = min(resv_ctx, bnxt_get_ulp_stat_ctxs(bp)); 8250 bnxt_set_ulp_stat_ctxs(bp, ulp_ctxs); 8251 } 8252 8253 return rc; 8254 } 8255 8256 static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 8257 { 8258 struct hwrm_func_vf_cfg_input *req; 8259 u32 flags; 8260 8261 if (!BNXT_NEW_RM(bp)) 8262 return 0; 8263 8264 req = __bnxt_hwrm_reserve_vf_rings(bp, hwr); 8265 flags = FUNC_VF_CFG_REQ_FLAGS_TX_ASSETS_TEST | 8266 FUNC_VF_CFG_REQ_FLAGS_RX_ASSETS_TEST | 8267 FUNC_VF_CFG_REQ_FLAGS_CMPL_ASSETS_TEST | 8268 FUNC_VF_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST | 8269 FUNC_VF_CFG_REQ_FLAGS_VNIC_ASSETS_TEST | 8270 FUNC_VF_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST; 8271 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 8272 flags |= FUNC_VF_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST; 8273 8274 req->flags = cpu_to_le32(flags); 8275 return hwrm_req_send_silent(bp, req); 8276 } 8277 8278 static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 8279 { 8280 struct hwrm_func_cfg_input *req; 8281 u32 flags; 8282 8283 req = __bnxt_hwrm_reserve_pf_rings(bp, hwr); 8284 flags = FUNC_CFG_REQ_FLAGS_TX_ASSETS_TEST; 8285 if (BNXT_NEW_RM(bp)) { 8286 flags |= FUNC_CFG_REQ_FLAGS_RX_ASSETS_TEST | 8287 FUNC_CFG_REQ_FLAGS_CMPL_ASSETS_TEST | 8288 FUNC_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST | 8289 FUNC_CFG_REQ_FLAGS_VNIC_ASSETS_TEST; 8290 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 8291 flags |= FUNC_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST | 8292 FUNC_CFG_REQ_FLAGS_NQ_ASSETS_TEST; 8293 else 8294 flags |= FUNC_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST; 8295 } 8296 8297 req->flags = cpu_to_le32(flags); 8298 return hwrm_req_send_silent(bp, req); 8299 } 8300 8301 static int bnxt_hwrm_check_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) 8302 { 8303 if (bp->hwrm_spec_code < 0x10801) 8304 return 0; 8305 8306 if (BNXT_PF(bp)) 8307 return bnxt_hwrm_check_pf_rings(bp, hwr); 8308 8309 return bnxt_hwrm_check_vf_rings(bp, hwr); 8310 } 8311 8312 static void bnxt_hwrm_coal_params_qcaps(struct bnxt *bp) 8313 { 8314 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 8315 struct hwrm_ring_aggint_qcaps_output *resp; 8316 struct hwrm_ring_aggint_qcaps_input *req; 8317 int rc; 8318 8319 coal_cap->cmpl_params = BNXT_LEGACY_COAL_CMPL_PARAMS; 8320 coal_cap->num_cmpl_dma_aggr_max = 63; 8321 coal_cap->num_cmpl_dma_aggr_during_int_max = 63; 8322 coal_cap->cmpl_aggr_dma_tmr_max = 65535; 8323 coal_cap->cmpl_aggr_dma_tmr_during_int_max = 65535; 8324 coal_cap->int_lat_tmr_min_max = 65535; 8325 coal_cap->int_lat_tmr_max_max = 65535; 8326 coal_cap->num_cmpl_aggr_int_max = 65535; 8327 coal_cap->timer_units = 80; 8328 8329 if (bp->hwrm_spec_code < 0x10902) 8330 return; 8331 8332 if (hwrm_req_init(bp, req, HWRM_RING_AGGINT_QCAPS)) 8333 return; 8334 8335 resp = hwrm_req_hold(bp, req); 8336 rc = hwrm_req_send_silent(bp, req); 8337 if (!rc) { 8338 coal_cap->cmpl_params = le32_to_cpu(resp->cmpl_params); 8339 coal_cap->nq_params = le32_to_cpu(resp->nq_params); 8340 coal_cap->num_cmpl_dma_aggr_max = 8341 le16_to_cpu(resp->num_cmpl_dma_aggr_max); 8342 coal_cap->num_cmpl_dma_aggr_during_int_max = 8343 le16_to_cpu(resp->num_cmpl_dma_aggr_during_int_max); 8344 coal_cap->cmpl_aggr_dma_tmr_max = 8345 le16_to_cpu(resp->cmpl_aggr_dma_tmr_max); 8346 coal_cap->cmpl_aggr_dma_tmr_during_int_max = 8347 le16_to_cpu(resp->cmpl_aggr_dma_tmr_during_int_max); 8348 coal_cap->int_lat_tmr_min_max = 8349 le16_to_cpu(resp->int_lat_tmr_min_max); 8350 coal_cap->int_lat_tmr_max_max = 8351 le16_to_cpu(resp->int_lat_tmr_max_max); 8352 coal_cap->num_cmpl_aggr_int_max = 8353 le16_to_cpu(resp->num_cmpl_aggr_int_max); 8354 coal_cap->timer_units = le16_to_cpu(resp->timer_units); 8355 } 8356 hwrm_req_drop(bp, req); 8357 } 8358 8359 static u16 bnxt_usec_to_coal_tmr(struct bnxt *bp, u16 usec) 8360 { 8361 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 8362 8363 return usec * 1000 / coal_cap->timer_units; 8364 } 8365 8366 static void bnxt_hwrm_set_coal_params(struct bnxt *bp, 8367 struct bnxt_coal *hw_coal, 8368 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req) 8369 { 8370 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 8371 u16 val, tmr, max, flags = hw_coal->flags; 8372 u32 cmpl_params = coal_cap->cmpl_params; 8373 8374 max = hw_coal->bufs_per_record * 128; 8375 if (hw_coal->budget) 8376 max = hw_coal->bufs_per_record * hw_coal->budget; 8377 max = min_t(u16, max, coal_cap->num_cmpl_aggr_int_max); 8378 8379 val = clamp_t(u16, hw_coal->coal_bufs, 1, max); 8380 req->num_cmpl_aggr_int = cpu_to_le16(val); 8381 8382 val = min_t(u16, val, coal_cap->num_cmpl_dma_aggr_max); 8383 req->num_cmpl_dma_aggr = cpu_to_le16(val); 8384 8385 val = clamp_t(u16, hw_coal->coal_bufs_irq, 1, 8386 coal_cap->num_cmpl_dma_aggr_during_int_max); 8387 req->num_cmpl_dma_aggr_during_int = cpu_to_le16(val); 8388 8389 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks); 8390 tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_max_max); 8391 req->int_lat_tmr_max = cpu_to_le16(tmr); 8392 8393 /* min timer set to 1/2 of interrupt timer */ 8394 if (cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_INT_LAT_TMR_MIN) { 8395 val = tmr / 2; 8396 val = clamp_t(u16, val, 1, coal_cap->int_lat_tmr_min_max); 8397 req->int_lat_tmr_min = cpu_to_le16(val); 8398 req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE); 8399 } 8400 8401 /* buf timer set to 1/4 of interrupt timer */ 8402 val = clamp_t(u16, tmr / 4, 1, coal_cap->cmpl_aggr_dma_tmr_max); 8403 req->cmpl_aggr_dma_tmr = cpu_to_le16(val); 8404 8405 if (cmpl_params & 8406 RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_NUM_CMPL_DMA_AGGR_DURING_INT) { 8407 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks_irq); 8408 val = clamp_t(u16, tmr, 1, 8409 coal_cap->cmpl_aggr_dma_tmr_during_int_max); 8410 req->cmpl_aggr_dma_tmr_during_int = cpu_to_le16(val); 8411 req->enables |= 8412 cpu_to_le16(BNXT_COAL_CMPL_AGGR_TMR_DURING_INT_ENABLE); 8413 } 8414 8415 if ((cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_RING_IDLE) && 8416 hw_coal->idle_thresh && hw_coal->coal_ticks < hw_coal->idle_thresh) 8417 flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE; 8418 req->flags = cpu_to_le16(flags); 8419 req->enables |= cpu_to_le16(BNXT_COAL_CMPL_ENABLES); 8420 } 8421 8422 static int __bnxt_hwrm_set_coal_nq(struct bnxt *bp, struct bnxt_napi *bnapi, 8423 struct bnxt_coal *hw_coal) 8424 { 8425 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req; 8426 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 8427 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 8428 u32 nq_params = coal_cap->nq_params; 8429 u16 tmr; 8430 int rc; 8431 8432 if (!(nq_params & RING_AGGINT_QCAPS_RESP_NQ_PARAMS_INT_LAT_TMR_MIN)) 8433 return 0; 8434 8435 rc = hwrm_req_init(bp, req, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); 8436 if (rc) 8437 return rc; 8438 8439 req->ring_id = cpu_to_le16(cpr->cp_ring_struct.fw_ring_id); 8440 req->flags = 8441 cpu_to_le16(RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_IS_NQ); 8442 8443 tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks) / 2; 8444 tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_min_max); 8445 req->int_lat_tmr_min = cpu_to_le16(tmr); 8446 req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE); 8447 return hwrm_req_send(bp, req); 8448 } 8449 8450 int bnxt_hwrm_set_ring_coal(struct bnxt *bp, struct bnxt_napi *bnapi) 8451 { 8452 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req_rx; 8453 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 8454 struct bnxt_coal coal; 8455 int rc; 8456 8457 /* Tick values in micro seconds. 8458 * 1 coal_buf x bufs_per_record = 1 completion record. 8459 */ 8460 memcpy(&coal, &bp->rx_coal, sizeof(struct bnxt_coal)); 8461 8462 coal.coal_ticks = cpr->rx_ring_coal.coal_ticks; 8463 coal.coal_bufs = cpr->rx_ring_coal.coal_bufs; 8464 8465 if (!bnapi->rx_ring) 8466 return -ENODEV; 8467 8468 rc = hwrm_req_init(bp, req_rx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); 8469 if (rc) 8470 return rc; 8471 8472 bnxt_hwrm_set_coal_params(bp, &coal, req_rx); 8473 8474 req_rx->ring_id = cpu_to_le16(bnxt_cp_ring_for_rx(bp, bnapi->rx_ring)); 8475 8476 return hwrm_req_send(bp, req_rx); 8477 } 8478 8479 static int 8480 bnxt_hwrm_set_rx_coal(struct bnxt *bp, struct bnxt_napi *bnapi, 8481 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req) 8482 { 8483 u16 ring_id = bnxt_cp_ring_for_rx(bp, bnapi->rx_ring); 8484 8485 req->ring_id = cpu_to_le16(ring_id); 8486 return hwrm_req_send(bp, req); 8487 } 8488 8489 static int 8490 bnxt_hwrm_set_tx_coal(struct bnxt *bp, struct bnxt_napi *bnapi, 8491 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req) 8492 { 8493 struct bnxt_tx_ring_info *txr; 8494 int i, rc; 8495 8496 bnxt_for_each_napi_tx(i, bnapi, txr) { 8497 u16 ring_id; 8498 8499 ring_id = bnxt_cp_ring_for_tx(bp, txr); 8500 req->ring_id = cpu_to_le16(ring_id); 8501 rc = hwrm_req_send(bp, req); 8502 if (rc) 8503 return rc; 8504 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 8505 return 0; 8506 } 8507 return 0; 8508 } 8509 8510 int bnxt_hwrm_set_coal(struct bnxt *bp) 8511 { 8512 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req_rx, *req_tx; 8513 int i, rc; 8514 8515 rc = hwrm_req_init(bp, req_rx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); 8516 if (rc) 8517 return rc; 8518 8519 rc = hwrm_req_init(bp, req_tx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); 8520 if (rc) { 8521 hwrm_req_drop(bp, req_rx); 8522 return rc; 8523 } 8524 8525 bnxt_hwrm_set_coal_params(bp, &bp->rx_coal, req_rx); 8526 bnxt_hwrm_set_coal_params(bp, &bp->tx_coal, req_tx); 8527 8528 hwrm_req_hold(bp, req_rx); 8529 hwrm_req_hold(bp, req_tx); 8530 for (i = 0; i < bp->cp_nr_rings; i++) { 8531 struct bnxt_napi *bnapi = bp->bnapi[i]; 8532 struct bnxt_coal *hw_coal; 8533 8534 if (!bnapi->rx_ring) 8535 rc = bnxt_hwrm_set_tx_coal(bp, bnapi, req_tx); 8536 else 8537 rc = bnxt_hwrm_set_rx_coal(bp, bnapi, req_rx); 8538 if (rc) 8539 break; 8540 8541 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 8542 continue; 8543 8544 if (bnapi->rx_ring && bnapi->tx_ring[0]) { 8545 rc = bnxt_hwrm_set_tx_coal(bp, bnapi, req_tx); 8546 if (rc) 8547 break; 8548 } 8549 if (bnapi->rx_ring) 8550 hw_coal = &bp->rx_coal; 8551 else 8552 hw_coal = &bp->tx_coal; 8553 __bnxt_hwrm_set_coal_nq(bp, bnapi, hw_coal); 8554 } 8555 hwrm_req_drop(bp, req_rx); 8556 hwrm_req_drop(bp, req_tx); 8557 return rc; 8558 } 8559 8560 static void bnxt_hwrm_stat_ctx_free(struct bnxt *bp) 8561 { 8562 struct hwrm_stat_ctx_clr_stats_input *req0 = NULL; 8563 struct hwrm_stat_ctx_free_input *req; 8564 int i; 8565 8566 if (!bp->bnapi) 8567 return; 8568 8569 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 8570 return; 8571 8572 if (hwrm_req_init(bp, req, HWRM_STAT_CTX_FREE)) 8573 return; 8574 if (BNXT_FW_MAJ(bp) <= 20) { 8575 if (hwrm_req_init(bp, req0, HWRM_STAT_CTX_CLR_STATS)) { 8576 hwrm_req_drop(bp, req); 8577 return; 8578 } 8579 hwrm_req_hold(bp, req0); 8580 } 8581 hwrm_req_hold(bp, req); 8582 for (i = 0; i < bp->cp_nr_rings; i++) { 8583 struct bnxt_napi *bnapi = bp->bnapi[i]; 8584 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 8585 8586 if (cpr->hw_stats_ctx_id != INVALID_STATS_CTX_ID) { 8587 req->stat_ctx_id = cpu_to_le32(cpr->hw_stats_ctx_id); 8588 if (req0) { 8589 req0->stat_ctx_id = req->stat_ctx_id; 8590 hwrm_req_send(bp, req0); 8591 } 8592 hwrm_req_send(bp, req); 8593 8594 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID; 8595 } 8596 } 8597 hwrm_req_drop(bp, req); 8598 if (req0) 8599 hwrm_req_drop(bp, req0); 8600 } 8601 8602 static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp) 8603 { 8604 struct hwrm_stat_ctx_alloc_output *resp; 8605 struct hwrm_stat_ctx_alloc_input *req; 8606 int rc, i; 8607 8608 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 8609 return 0; 8610 8611 rc = hwrm_req_init(bp, req, HWRM_STAT_CTX_ALLOC); 8612 if (rc) 8613 return rc; 8614 8615 req->stats_dma_length = cpu_to_le16(bp->hw_ring_stats_size); 8616 req->update_period_ms = cpu_to_le32(bp->stats_coal_ticks / 1000); 8617 8618 resp = hwrm_req_hold(bp, req); 8619 for (i = 0; i < bp->cp_nr_rings; i++) { 8620 struct bnxt_napi *bnapi = bp->bnapi[i]; 8621 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 8622 8623 req->stats_dma_addr = cpu_to_le64(cpr->stats.hw_stats_map); 8624 8625 rc = hwrm_req_send(bp, req); 8626 if (rc) 8627 break; 8628 8629 cpr->hw_stats_ctx_id = le32_to_cpu(resp->stat_ctx_id); 8630 8631 bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id; 8632 } 8633 hwrm_req_drop(bp, req); 8634 return rc; 8635 } 8636 8637 static int bnxt_hwrm_func_qcfg(struct bnxt *bp) 8638 { 8639 struct hwrm_func_qcfg_output *resp; 8640 struct hwrm_func_qcfg_input *req; 8641 u16 flags; 8642 int rc; 8643 8644 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); 8645 if (rc) 8646 return rc; 8647 8648 req->fid = cpu_to_le16(0xffff); 8649 resp = hwrm_req_hold(bp, req); 8650 rc = hwrm_req_send(bp, req); 8651 if (rc) 8652 goto func_qcfg_exit; 8653 8654 flags = le16_to_cpu(resp->flags); 8655 #ifdef CONFIG_BNXT_SRIOV 8656 if (BNXT_VF(bp)) { 8657 struct bnxt_vf_info *vf = &bp->vf; 8658 8659 vf->vlan = le16_to_cpu(resp->vlan) & VLAN_VID_MASK; 8660 if (flags & FUNC_QCFG_RESP_FLAGS_TRUSTED_VF) 8661 vf->flags |= BNXT_VF_TRUST; 8662 else 8663 vf->flags &= ~BNXT_VF_TRUST; 8664 } else { 8665 bp->pf.registered_vfs = le16_to_cpu(resp->registered_vfs); 8666 } 8667 #endif 8668 if (flags & (FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED | 8669 FUNC_QCFG_RESP_FLAGS_FW_LLDP_AGENT_ENABLED)) { 8670 bp->fw_cap |= BNXT_FW_CAP_LLDP_AGENT; 8671 if (flags & FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED) 8672 bp->fw_cap |= BNXT_FW_CAP_DCBX_AGENT; 8673 } 8674 if (BNXT_PF(bp) && (flags & FUNC_QCFG_RESP_FLAGS_MULTI_HOST)) 8675 bp->flags |= BNXT_FLAG_MULTI_HOST; 8676 8677 if (flags & FUNC_QCFG_RESP_FLAGS_RING_MONITOR_ENABLED) 8678 bp->fw_cap |= BNXT_FW_CAP_RING_MONITOR; 8679 8680 if (flags & FUNC_QCFG_RESP_FLAGS_ENABLE_RDMA_SRIOV) 8681 bp->fw_cap |= BNXT_FW_CAP_ENABLE_RDMA_SRIOV; 8682 if (resp->roce_bidi_opt_mode & 8683 FUNC_QCFG_RESP_ROCE_BIDI_OPT_MODE_DEDICATED) 8684 bp->cos0_cos1_shared = 1; 8685 else 8686 bp->cos0_cos1_shared = 0; 8687 8688 switch (resp->port_partition_type) { 8689 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0: 8690 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_2: 8691 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_5: 8692 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR2_0: 8693 bp->port_partition_type = resp->port_partition_type; 8694 break; 8695 } 8696 if (bp->hwrm_spec_code < 0x10707 || 8697 resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEB) 8698 bp->br_mode = BRIDGE_MODE_VEB; 8699 else if (resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEPA) 8700 bp->br_mode = BRIDGE_MODE_VEPA; 8701 else 8702 bp->br_mode = BRIDGE_MODE_UNDEF; 8703 8704 bp->max_mtu = le16_to_cpu(resp->max_mtu_configured); 8705 if (!bp->max_mtu) 8706 bp->max_mtu = BNXT_MAX_MTU; 8707 8708 if (bp->db_size) 8709 goto func_qcfg_exit; 8710 8711 bp->db_offset = le16_to_cpu(resp->legacy_l2_db_size_kb) * 1024; 8712 if (BNXT_CHIP_P5(bp)) { 8713 if (BNXT_PF(bp)) 8714 bp->db_offset = DB_PF_OFFSET_P5; 8715 else 8716 bp->db_offset = DB_VF_OFFSET_P5; 8717 } 8718 bp->db_size = PAGE_ALIGN(le16_to_cpu(resp->l2_doorbell_bar_size_kb) * 8719 1024); 8720 if (!bp->db_size || bp->db_size > pci_resource_len(bp->pdev, 2) || 8721 bp->db_size <= bp->db_offset) 8722 bp->db_size = pci_resource_len(bp->pdev, 2); 8723 8724 func_qcfg_exit: 8725 hwrm_req_drop(bp, req); 8726 return rc; 8727 } 8728 8729 static void bnxt_init_ctx_initializer(struct bnxt_ctx_mem_type *ctxm, 8730 u8 init_val, u8 init_offset, 8731 bool init_mask_set) 8732 { 8733 ctxm->init_value = init_val; 8734 ctxm->init_offset = BNXT_CTX_INIT_INVALID_OFFSET; 8735 if (init_mask_set) 8736 ctxm->init_offset = init_offset * 4; 8737 else 8738 ctxm->init_value = 0; 8739 } 8740 8741 static int bnxt_alloc_all_ctx_pg_info(struct bnxt *bp, int ctx_max) 8742 { 8743 struct bnxt_ctx_mem_info *ctx = bp->ctx; 8744 u16 type; 8745 8746 for (type = 0; type < ctx_max; type++) { 8747 struct bnxt_ctx_mem_type *ctxm = &ctx->ctx_arr[type]; 8748 int n = 1; 8749 8750 if (!ctxm->max_entries || ctxm->pg_info) 8751 continue; 8752 8753 if (ctxm->instance_bmap) 8754 n = hweight32(ctxm->instance_bmap); 8755 ctxm->pg_info = kzalloc_objs(*ctxm->pg_info, n); 8756 if (!ctxm->pg_info) 8757 return -ENOMEM; 8758 } 8759 return 0; 8760 } 8761 8762 static void bnxt_free_one_ctx_mem(struct bnxt *bp, 8763 struct bnxt_ctx_mem_type *ctxm, bool force); 8764 8765 #define BNXT_CTX_INIT_VALID(flags) \ 8766 (!!((flags) & \ 8767 FUNC_BACKING_STORE_QCAPS_V2_RESP_FLAGS_ENABLE_CTX_KIND_INIT)) 8768 8769 static int bnxt_hwrm_func_backing_store_qcaps_v2(struct bnxt *bp) 8770 { 8771 struct hwrm_func_backing_store_qcaps_v2_output *resp; 8772 struct hwrm_func_backing_store_qcaps_v2_input *req; 8773 struct bnxt_ctx_mem_info *ctx = bp->ctx; 8774 u16 type, next_type = 0; 8775 int rc; 8776 8777 rc = hwrm_req_init(bp, req, HWRM_FUNC_BACKING_STORE_QCAPS_V2); 8778 if (rc) 8779 return rc; 8780 8781 if (!ctx) { 8782 ctx = kzalloc_obj(*ctx); 8783 if (!ctx) 8784 return -ENOMEM; 8785 bp->ctx = ctx; 8786 } 8787 8788 resp = hwrm_req_hold(bp, req); 8789 8790 for (type = 0; type < BNXT_CTX_V2_MAX; type = next_type) { 8791 struct bnxt_ctx_mem_type *ctxm = &ctx->ctx_arr[type]; 8792 u8 init_val, init_off, i; 8793 u32 max_entries; 8794 u16 entry_size; 8795 __le32 *p; 8796 u32 flags; 8797 8798 req->type = cpu_to_le16(type); 8799 rc = hwrm_req_send(bp, req); 8800 if (rc) 8801 goto ctx_done; 8802 flags = le32_to_cpu(resp->flags); 8803 next_type = le16_to_cpu(resp->next_valid_type); 8804 if (!(flags & BNXT_CTX_MEM_TYPE_VALID)) { 8805 bnxt_free_one_ctx_mem(bp, ctxm, true); 8806 continue; 8807 } 8808 entry_size = le16_to_cpu(resp->entry_size); 8809 max_entries = le32_to_cpu(resp->max_num_entries); 8810 if (ctxm->mem_valid) { 8811 if (!(flags & BNXT_CTX_MEM_PERSIST) || 8812 ctxm->entry_size != entry_size || 8813 ctxm->max_entries != max_entries) 8814 bnxt_free_one_ctx_mem(bp, ctxm, true); 8815 else 8816 continue; 8817 } 8818 ctxm->type = type; 8819 ctxm->entry_size = entry_size; 8820 ctxm->flags = flags; 8821 ctxm->instance_bmap = le32_to_cpu(resp->instance_bit_map); 8822 ctxm->entry_multiple = resp->entry_multiple; 8823 ctxm->max_entries = max_entries; 8824 ctxm->min_entries = le32_to_cpu(resp->min_num_entries); 8825 init_val = resp->ctx_init_value; 8826 init_off = resp->ctx_init_offset; 8827 bnxt_init_ctx_initializer(ctxm, init_val, init_off, 8828 BNXT_CTX_INIT_VALID(flags)); 8829 ctxm->split_entry_cnt = min_t(u8, resp->subtype_valid_cnt, 8830 BNXT_MAX_SPLIT_ENTRY); 8831 for (i = 0, p = &resp->split_entry_0; i < ctxm->split_entry_cnt; 8832 i++, p++) 8833 ctxm->split[i] = le32_to_cpu(*p); 8834 } 8835 rc = bnxt_alloc_all_ctx_pg_info(bp, BNXT_CTX_V2_MAX); 8836 8837 ctx_done: 8838 hwrm_req_drop(bp, req); 8839 return rc; 8840 } 8841 8842 static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp) 8843 { 8844 struct hwrm_func_backing_store_qcaps_output *resp; 8845 struct hwrm_func_backing_store_qcaps_input *req; 8846 int rc; 8847 8848 if (bp->hwrm_spec_code < 0x10902 || BNXT_VF(bp) || 8849 (bp->ctx && bp->ctx->flags & BNXT_CTX_FLAG_INITED)) 8850 return 0; 8851 8852 if (bp->fw_cap & BNXT_FW_CAP_BACKING_STORE_V2) 8853 return bnxt_hwrm_func_backing_store_qcaps_v2(bp); 8854 8855 rc = hwrm_req_init(bp, req, HWRM_FUNC_BACKING_STORE_QCAPS); 8856 if (rc) 8857 return rc; 8858 8859 resp = hwrm_req_hold(bp, req); 8860 rc = hwrm_req_send_silent(bp, req); 8861 if (!rc) { 8862 struct bnxt_ctx_mem_type *ctxm; 8863 struct bnxt_ctx_mem_info *ctx; 8864 u8 init_val, init_idx = 0; 8865 u16 init_mask; 8866 8867 ctx = bp->ctx; 8868 if (!ctx) { 8869 ctx = kzalloc_obj(*ctx); 8870 if (!ctx) { 8871 rc = -ENOMEM; 8872 goto ctx_err; 8873 } 8874 bp->ctx = ctx; 8875 } 8876 init_val = resp->ctx_kind_initializer; 8877 init_mask = le16_to_cpu(resp->ctx_init_mask); 8878 8879 ctxm = &ctx->ctx_arr[BNXT_CTX_QP]; 8880 ctxm->max_entries = le32_to_cpu(resp->qp_max_entries); 8881 ctxm->qp_qp1_entries = le16_to_cpu(resp->qp_min_qp1_entries); 8882 ctxm->qp_l2_entries = le16_to_cpu(resp->qp_max_l2_entries); 8883 ctxm->qp_fast_qpmd_entries = le16_to_cpu(resp->fast_qpmd_qp_num_entries); 8884 ctxm->entry_size = le16_to_cpu(resp->qp_entry_size); 8885 bnxt_init_ctx_initializer(ctxm, init_val, resp->qp_init_offset, 8886 (init_mask & (1 << init_idx++)) != 0); 8887 8888 ctxm = &ctx->ctx_arr[BNXT_CTX_SRQ]; 8889 ctxm->srq_l2_entries = le16_to_cpu(resp->srq_max_l2_entries); 8890 ctxm->max_entries = le32_to_cpu(resp->srq_max_entries); 8891 ctxm->entry_size = le16_to_cpu(resp->srq_entry_size); 8892 bnxt_init_ctx_initializer(ctxm, init_val, resp->srq_init_offset, 8893 (init_mask & (1 << init_idx++)) != 0); 8894 8895 ctxm = &ctx->ctx_arr[BNXT_CTX_CQ]; 8896 ctxm->cq_l2_entries = le16_to_cpu(resp->cq_max_l2_entries); 8897 ctxm->max_entries = le32_to_cpu(resp->cq_max_entries); 8898 ctxm->entry_size = le16_to_cpu(resp->cq_entry_size); 8899 bnxt_init_ctx_initializer(ctxm, init_val, resp->cq_init_offset, 8900 (init_mask & (1 << init_idx++)) != 0); 8901 8902 ctxm = &ctx->ctx_arr[BNXT_CTX_VNIC]; 8903 ctxm->vnic_entries = le16_to_cpu(resp->vnic_max_vnic_entries); 8904 ctxm->max_entries = ctxm->vnic_entries + 8905 le16_to_cpu(resp->vnic_max_ring_table_entries); 8906 ctxm->entry_size = le16_to_cpu(resp->vnic_entry_size); 8907 bnxt_init_ctx_initializer(ctxm, init_val, 8908 resp->vnic_init_offset, 8909 (init_mask & (1 << init_idx++)) != 0); 8910 8911 ctxm = &ctx->ctx_arr[BNXT_CTX_STAT]; 8912 ctxm->max_entries = le32_to_cpu(resp->stat_max_entries); 8913 ctxm->entry_size = le16_to_cpu(resp->stat_entry_size); 8914 bnxt_init_ctx_initializer(ctxm, init_val, 8915 resp->stat_init_offset, 8916 (init_mask & (1 << init_idx++)) != 0); 8917 8918 ctxm = &ctx->ctx_arr[BNXT_CTX_STQM]; 8919 ctxm->entry_size = le16_to_cpu(resp->tqm_entry_size); 8920 ctxm->min_entries = le32_to_cpu(resp->tqm_min_entries_per_ring); 8921 ctxm->max_entries = le32_to_cpu(resp->tqm_max_entries_per_ring); 8922 ctxm->entry_multiple = resp->tqm_entries_multiple; 8923 if (!ctxm->entry_multiple) 8924 ctxm->entry_multiple = 1; 8925 8926 memcpy(&ctx->ctx_arr[BNXT_CTX_FTQM], ctxm, sizeof(*ctxm)); 8927 8928 ctxm = &ctx->ctx_arr[BNXT_CTX_MRAV]; 8929 ctxm->max_entries = le32_to_cpu(resp->mrav_max_entries); 8930 ctxm->entry_size = le16_to_cpu(resp->mrav_entry_size); 8931 ctxm->mrav_num_entries_units = 8932 le16_to_cpu(resp->mrav_num_entries_units); 8933 bnxt_init_ctx_initializer(ctxm, init_val, 8934 resp->mrav_init_offset, 8935 (init_mask & (1 << init_idx++)) != 0); 8936 8937 ctxm = &ctx->ctx_arr[BNXT_CTX_TIM]; 8938 ctxm->entry_size = le16_to_cpu(resp->tim_entry_size); 8939 ctxm->max_entries = le32_to_cpu(resp->tim_max_entries); 8940 8941 ctx->tqm_fp_rings_count = resp->tqm_fp_rings_count; 8942 if (!ctx->tqm_fp_rings_count) 8943 ctx->tqm_fp_rings_count = bp->max_q; 8944 else if (ctx->tqm_fp_rings_count > BNXT_MAX_TQM_FP_RINGS) 8945 ctx->tqm_fp_rings_count = BNXT_MAX_TQM_FP_RINGS; 8946 8947 ctxm = &ctx->ctx_arr[BNXT_CTX_FTQM]; 8948 memcpy(ctxm, &ctx->ctx_arr[BNXT_CTX_STQM], sizeof(*ctxm)); 8949 ctxm->instance_bmap = (1 << ctx->tqm_fp_rings_count) - 1; 8950 8951 rc = bnxt_alloc_all_ctx_pg_info(bp, BNXT_CTX_MAX); 8952 } else { 8953 rc = 0; 8954 } 8955 ctx_err: 8956 hwrm_req_drop(bp, req); 8957 return rc; 8958 } 8959 8960 static void bnxt_hwrm_set_pg_attr(struct bnxt_ring_mem_info *rmem, u8 *pg_attr, 8961 __le64 *pg_dir) 8962 { 8963 if (!rmem->nr_pages) 8964 return; 8965 8966 BNXT_SET_CTX_PAGE_ATTR(*pg_attr); 8967 if (rmem->depth >= 1) { 8968 if (rmem->depth == 2) 8969 *pg_attr |= 2; 8970 else 8971 *pg_attr |= 1; 8972 *pg_dir = cpu_to_le64(rmem->pg_tbl_map); 8973 } else { 8974 *pg_dir = cpu_to_le64(rmem->dma_arr[0]); 8975 } 8976 } 8977 8978 #define FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES \ 8979 (FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP | \ 8980 FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ | \ 8981 FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ | \ 8982 FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC | \ 8983 FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT) 8984 8985 static int bnxt_hwrm_func_backing_store_cfg(struct bnxt *bp, u32 enables) 8986 { 8987 struct hwrm_func_backing_store_cfg_input *req; 8988 struct bnxt_ctx_mem_info *ctx = bp->ctx; 8989 struct bnxt_ctx_pg_info *ctx_pg; 8990 struct bnxt_ctx_mem_type *ctxm; 8991 void **__req = (void **)&req; 8992 u32 req_len = sizeof(*req); 8993 __le32 *num_entries; 8994 __le64 *pg_dir; 8995 u32 flags = 0; 8996 u8 *pg_attr; 8997 u32 ena; 8998 int rc; 8999 int i; 9000 9001 if (!ctx) 9002 return 0; 9003 9004 if (req_len > bp->hwrm_max_ext_req_len) 9005 req_len = BNXT_BACKING_STORE_CFG_LEGACY_LEN; 9006 rc = __hwrm_req_init(bp, __req, HWRM_FUNC_BACKING_STORE_CFG, req_len); 9007 if (rc) 9008 return rc; 9009 9010 req->enables = cpu_to_le32(enables); 9011 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP) { 9012 ctxm = &ctx->ctx_arr[BNXT_CTX_QP]; 9013 ctx_pg = ctxm->pg_info; 9014 req->qp_num_entries = cpu_to_le32(ctx_pg->entries); 9015 req->qp_num_qp1_entries = cpu_to_le16(ctxm->qp_qp1_entries); 9016 req->qp_num_l2_entries = cpu_to_le16(ctxm->qp_l2_entries); 9017 req->qp_entry_size = cpu_to_le16(ctxm->entry_size); 9018 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 9019 &req->qpc_pg_size_qpc_lvl, 9020 &req->qpc_page_dir); 9021 9022 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP_FAST_QPMD) 9023 req->qp_num_fast_qpmd_entries = cpu_to_le16(ctxm->qp_fast_qpmd_entries); 9024 } 9025 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ) { 9026 ctxm = &ctx->ctx_arr[BNXT_CTX_SRQ]; 9027 ctx_pg = ctxm->pg_info; 9028 req->srq_num_entries = cpu_to_le32(ctx_pg->entries); 9029 req->srq_num_l2_entries = cpu_to_le16(ctxm->srq_l2_entries); 9030 req->srq_entry_size = cpu_to_le16(ctxm->entry_size); 9031 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 9032 &req->srq_pg_size_srq_lvl, 9033 &req->srq_page_dir); 9034 } 9035 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ) { 9036 ctxm = &ctx->ctx_arr[BNXT_CTX_CQ]; 9037 ctx_pg = ctxm->pg_info; 9038 req->cq_num_entries = cpu_to_le32(ctx_pg->entries); 9039 req->cq_num_l2_entries = cpu_to_le16(ctxm->cq_l2_entries); 9040 req->cq_entry_size = cpu_to_le16(ctxm->entry_size); 9041 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 9042 &req->cq_pg_size_cq_lvl, 9043 &req->cq_page_dir); 9044 } 9045 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC) { 9046 ctxm = &ctx->ctx_arr[BNXT_CTX_VNIC]; 9047 ctx_pg = ctxm->pg_info; 9048 req->vnic_num_vnic_entries = cpu_to_le16(ctxm->vnic_entries); 9049 req->vnic_num_ring_table_entries = 9050 cpu_to_le16(ctxm->max_entries - ctxm->vnic_entries); 9051 req->vnic_entry_size = cpu_to_le16(ctxm->entry_size); 9052 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 9053 &req->vnic_pg_size_vnic_lvl, 9054 &req->vnic_page_dir); 9055 } 9056 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT) { 9057 ctxm = &ctx->ctx_arr[BNXT_CTX_STAT]; 9058 ctx_pg = ctxm->pg_info; 9059 req->stat_num_entries = cpu_to_le32(ctxm->max_entries); 9060 req->stat_entry_size = cpu_to_le16(ctxm->entry_size); 9061 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 9062 &req->stat_pg_size_stat_lvl, 9063 &req->stat_page_dir); 9064 } 9065 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV) { 9066 u32 units; 9067 9068 ctxm = &ctx->ctx_arr[BNXT_CTX_MRAV]; 9069 ctx_pg = ctxm->pg_info; 9070 req->mrav_num_entries = cpu_to_le32(ctx_pg->entries); 9071 units = ctxm->mrav_num_entries_units; 9072 if (units) { 9073 u32 num_mr, num_ah = ctxm->mrav_av_entries; 9074 u32 entries; 9075 9076 num_mr = ctx_pg->entries - num_ah; 9077 entries = ((num_mr / units) << 16) | (num_ah / units); 9078 req->mrav_num_entries = cpu_to_le32(entries); 9079 flags |= FUNC_BACKING_STORE_CFG_REQ_FLAGS_MRAV_RESERVATION_SPLIT; 9080 } 9081 req->mrav_entry_size = cpu_to_le16(ctxm->entry_size); 9082 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 9083 &req->mrav_pg_size_mrav_lvl, 9084 &req->mrav_page_dir); 9085 } 9086 if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM) { 9087 ctxm = &ctx->ctx_arr[BNXT_CTX_TIM]; 9088 ctx_pg = ctxm->pg_info; 9089 req->tim_num_entries = cpu_to_le32(ctx_pg->entries); 9090 req->tim_entry_size = cpu_to_le16(ctxm->entry_size); 9091 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 9092 &req->tim_pg_size_tim_lvl, 9093 &req->tim_page_dir); 9094 } 9095 ctxm = &ctx->ctx_arr[BNXT_CTX_STQM]; 9096 for (i = 0, num_entries = &req->tqm_sp_num_entries, 9097 pg_attr = &req->tqm_sp_pg_size_tqm_sp_lvl, 9098 pg_dir = &req->tqm_sp_page_dir, 9099 ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP, 9100 ctx_pg = ctxm->pg_info; 9101 i < BNXT_MAX_TQM_RINGS; 9102 ctx_pg = &ctx->ctx_arr[BNXT_CTX_FTQM].pg_info[i], 9103 i++, num_entries++, pg_attr++, pg_dir++, ena <<= 1) { 9104 if (!(enables & ena)) 9105 continue; 9106 9107 req->tqm_entry_size = cpu_to_le16(ctxm->entry_size); 9108 *num_entries = cpu_to_le32(ctx_pg->entries); 9109 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, pg_attr, pg_dir); 9110 } 9111 req->flags = cpu_to_le32(flags); 9112 return hwrm_req_send(bp, req); 9113 } 9114 9115 static int bnxt_alloc_ctx_mem_blk(struct bnxt *bp, 9116 struct bnxt_ctx_pg_info *ctx_pg) 9117 { 9118 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; 9119 9120 rmem->page_size = BNXT_PAGE_SIZE; 9121 rmem->pg_arr = ctx_pg->ctx_pg_arr; 9122 rmem->dma_arr = ctx_pg->ctx_dma_arr; 9123 rmem->flags = BNXT_RMEM_VALID_PTE_FLAG; 9124 if (rmem->depth >= 1) 9125 rmem->flags |= BNXT_RMEM_USE_FULL_PAGE_FLAG; 9126 return bnxt_alloc_ring(bp, rmem); 9127 } 9128 9129 static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp, 9130 struct bnxt_ctx_pg_info *ctx_pg, u32 mem_size, 9131 u8 depth, struct bnxt_ctx_mem_type *ctxm) 9132 { 9133 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; 9134 int rc; 9135 9136 if (!mem_size) 9137 return -EINVAL; 9138 9139 ctx_pg->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); 9140 if (ctx_pg->nr_pages > MAX_CTX_TOTAL_PAGES) { 9141 ctx_pg->nr_pages = 0; 9142 return -EINVAL; 9143 } 9144 if (ctx_pg->nr_pages > MAX_CTX_PAGES || depth > 1) { 9145 int nr_tbls, i; 9146 9147 rmem->depth = 2; 9148 ctx_pg->ctx_pg_tbl = kzalloc_objs(ctx_pg, MAX_CTX_PAGES); 9149 if (!ctx_pg->ctx_pg_tbl) 9150 return -ENOMEM; 9151 nr_tbls = DIV_ROUND_UP(ctx_pg->nr_pages, MAX_CTX_PAGES); 9152 rmem->nr_pages = nr_tbls; 9153 rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg); 9154 if (rc) 9155 return rc; 9156 for (i = 0; i < nr_tbls; i++) { 9157 struct bnxt_ctx_pg_info *pg_tbl; 9158 9159 pg_tbl = kzalloc_obj(*pg_tbl); 9160 if (!pg_tbl) 9161 return -ENOMEM; 9162 ctx_pg->ctx_pg_tbl[i] = pg_tbl; 9163 rmem = &pg_tbl->ring_mem; 9164 rmem->pg_tbl = ctx_pg->ctx_pg_arr[i]; 9165 rmem->pg_tbl_map = ctx_pg->ctx_dma_arr[i]; 9166 rmem->depth = 1; 9167 rmem->nr_pages = MAX_CTX_PAGES; 9168 rmem->ctx_mem = ctxm; 9169 if (i == (nr_tbls - 1)) { 9170 int rem = ctx_pg->nr_pages % MAX_CTX_PAGES; 9171 9172 if (rem) 9173 rmem->nr_pages = rem; 9174 } 9175 rc = bnxt_alloc_ctx_mem_blk(bp, pg_tbl); 9176 if (rc) 9177 break; 9178 } 9179 } else { 9180 rmem->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); 9181 if (rmem->nr_pages > 1 || depth) 9182 rmem->depth = 1; 9183 rmem->ctx_mem = ctxm; 9184 rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg); 9185 } 9186 return rc; 9187 } 9188 9189 static size_t bnxt_copy_ctx_pg_tbls(struct bnxt *bp, 9190 struct bnxt_ctx_pg_info *ctx_pg, 9191 void *buf, size_t offset, size_t head, 9192 size_t tail) 9193 { 9194 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; 9195 size_t nr_pages = ctx_pg->nr_pages; 9196 int page_size = rmem->page_size; 9197 size_t len = 0, total_len = 0; 9198 u16 depth = rmem->depth; 9199 9200 tail %= nr_pages * page_size; 9201 do { 9202 if (depth > 1) { 9203 int i = head / (page_size * MAX_CTX_PAGES); 9204 struct bnxt_ctx_pg_info *pg_tbl; 9205 9206 pg_tbl = ctx_pg->ctx_pg_tbl[i]; 9207 rmem = &pg_tbl->ring_mem; 9208 } 9209 len = __bnxt_copy_ring(bp, rmem, buf, offset, head, tail); 9210 head += len; 9211 offset += len; 9212 total_len += len; 9213 if (head >= nr_pages * page_size) 9214 head = 0; 9215 } while (head != tail); 9216 return total_len; 9217 } 9218 9219 static void bnxt_free_ctx_pg_tbls(struct bnxt *bp, 9220 struct bnxt_ctx_pg_info *ctx_pg) 9221 { 9222 struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; 9223 9224 if (rmem->depth > 1 || ctx_pg->nr_pages > MAX_CTX_PAGES || 9225 ctx_pg->ctx_pg_tbl) { 9226 int i, nr_tbls = rmem->nr_pages; 9227 9228 for (i = 0; i < nr_tbls; i++) { 9229 struct bnxt_ctx_pg_info *pg_tbl; 9230 struct bnxt_ring_mem_info *rmem2; 9231 9232 pg_tbl = ctx_pg->ctx_pg_tbl[i]; 9233 if (!pg_tbl) 9234 continue; 9235 rmem2 = &pg_tbl->ring_mem; 9236 bnxt_free_ring(bp, rmem2); 9237 ctx_pg->ctx_pg_arr[i] = NULL; 9238 kfree(pg_tbl); 9239 ctx_pg->ctx_pg_tbl[i] = NULL; 9240 } 9241 kfree(ctx_pg->ctx_pg_tbl); 9242 ctx_pg->ctx_pg_tbl = NULL; 9243 } 9244 bnxt_free_ring(bp, rmem); 9245 ctx_pg->nr_pages = 0; 9246 } 9247 9248 static int bnxt_setup_ctxm_pg_tbls(struct bnxt *bp, 9249 struct bnxt_ctx_mem_type *ctxm, u32 entries, 9250 u8 pg_lvl) 9251 { 9252 struct bnxt_ctx_pg_info *ctx_pg = ctxm->pg_info; 9253 int i, rc = 0, n = 1; 9254 u32 mem_size; 9255 9256 if (!ctxm->entry_size || !ctx_pg) 9257 return -EINVAL; 9258 if (ctxm->instance_bmap) 9259 n = hweight32(ctxm->instance_bmap); 9260 if (ctxm->entry_multiple) 9261 entries = roundup(entries, ctxm->entry_multiple); 9262 entries = clamp_t(u32, entries, ctxm->min_entries, ctxm->max_entries); 9263 mem_size = entries * ctxm->entry_size; 9264 for (i = 0; i < n && !rc; i++) { 9265 ctx_pg[i].entries = entries; 9266 rc = bnxt_alloc_ctx_pg_tbls(bp, &ctx_pg[i], mem_size, pg_lvl, 9267 ctxm->init_value ? ctxm : NULL); 9268 } 9269 if (!rc) 9270 ctxm->mem_valid = 1; 9271 return rc; 9272 } 9273 9274 static int bnxt_hwrm_func_backing_store_cfg_v2(struct bnxt *bp, 9275 struct bnxt_ctx_mem_type *ctxm, 9276 bool last) 9277 { 9278 struct hwrm_func_backing_store_cfg_v2_input *req; 9279 u32 instance_bmap = ctxm->instance_bmap; 9280 int i, j, rc = 0, n = 1; 9281 __le32 *p; 9282 9283 if (!(ctxm->flags & BNXT_CTX_MEM_TYPE_VALID) || !ctxm->pg_info) 9284 return 0; 9285 9286 if (instance_bmap) 9287 n = hweight32(ctxm->instance_bmap); 9288 else 9289 instance_bmap = 1; 9290 9291 rc = hwrm_req_init(bp, req, HWRM_FUNC_BACKING_STORE_CFG_V2); 9292 if (rc) 9293 return rc; 9294 hwrm_req_hold(bp, req); 9295 req->type = cpu_to_le16(ctxm->type); 9296 req->entry_size = cpu_to_le16(ctxm->entry_size); 9297 if ((ctxm->flags & BNXT_CTX_MEM_PERSIST) && 9298 bnxt_bs_trace_avail(bp, ctxm->type)) { 9299 struct bnxt_bs_trace_info *bs_trace; 9300 u32 enables; 9301 9302 enables = FUNC_BACKING_STORE_CFG_V2_REQ_ENABLES_NEXT_BS_OFFSET; 9303 req->enables = cpu_to_le32(enables); 9304 bs_trace = &bp->bs_trace[bnxt_bstore_to_trace[ctxm->type]]; 9305 req->next_bs_offset = cpu_to_le32(bs_trace->last_offset); 9306 } 9307 req->subtype_valid_cnt = ctxm->split_entry_cnt; 9308 for (i = 0, p = &req->split_entry_0; i < ctxm->split_entry_cnt; i++) 9309 p[i] = cpu_to_le32(ctxm->split[i]); 9310 for (i = 0, j = 0; j < n && !rc; i++) { 9311 struct bnxt_ctx_pg_info *ctx_pg; 9312 9313 if (!(instance_bmap & (1 << i))) 9314 continue; 9315 req->instance = cpu_to_le16(i); 9316 ctx_pg = &ctxm->pg_info[j++]; 9317 if (!ctx_pg->entries) 9318 continue; 9319 req->num_entries = cpu_to_le32(ctx_pg->entries); 9320 bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, 9321 &req->page_size_pbl_level, 9322 &req->page_dir); 9323 if (last && j == n) 9324 req->flags = 9325 cpu_to_le32(FUNC_BACKING_STORE_CFG_V2_REQ_FLAGS_BS_CFG_ALL_DONE); 9326 rc = hwrm_req_send(bp, req); 9327 } 9328 hwrm_req_drop(bp, req); 9329 return rc; 9330 } 9331 9332 static int bnxt_backing_store_cfg_v2(struct bnxt *bp) 9333 { 9334 struct bnxt_ctx_mem_info *ctx = bp->ctx; 9335 struct bnxt_ctx_mem_type *ctxm; 9336 u16 last_type = BNXT_CTX_INV; 9337 int rc = 0; 9338 u16 type; 9339 9340 for (type = BNXT_CTX_SRT; type <= BNXT_CTX_QPC; type++) { 9341 ctxm = &ctx->ctx_arr[type]; 9342 if (!bnxt_bs_trace_avail(bp, type)) 9343 continue; 9344 if (!ctxm->mem_valid) { 9345 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, 9346 ctxm->max_entries, 1); 9347 if (rc) { 9348 netdev_warn(bp->dev, "Unable to setup ctx page for type:0x%x.\n", 9349 type); 9350 continue; 9351 } 9352 bnxt_bs_trace_init(bp, ctxm); 9353 } 9354 last_type = type; 9355 } 9356 9357 if (last_type == BNXT_CTX_INV) { 9358 for (type = 0; type < BNXT_CTX_MAX; type++) { 9359 ctxm = &ctx->ctx_arr[type]; 9360 if (ctxm->mem_valid) 9361 last_type = type; 9362 } 9363 if (last_type == BNXT_CTX_INV) 9364 return 0; 9365 } 9366 ctx->ctx_arr[last_type].last = 1; 9367 9368 for (type = 0 ; type < BNXT_CTX_V2_MAX; type++) { 9369 ctxm = &ctx->ctx_arr[type]; 9370 9371 if (!ctxm->mem_valid) 9372 continue; 9373 rc = bnxt_hwrm_func_backing_store_cfg_v2(bp, ctxm, ctxm->last); 9374 if (rc) 9375 return rc; 9376 } 9377 return 0; 9378 } 9379 9380 /** 9381 * __bnxt_copy_ctx_mem - copy host context memory 9382 * @bp: The driver context 9383 * @ctxm: The pointer to the context memory type 9384 * @buf: The destination buffer or NULL to just obtain the length 9385 * @offset: The buffer offset to copy the data to 9386 * @head: The head offset of context memory to copy from 9387 * @tail: The tail offset (last byte + 1) of context memory to end the copy 9388 * 9389 * This function is called for debugging purposes to dump the host context 9390 * used by the chip. 9391 * 9392 * Return: Length of memory copied 9393 */ 9394 static size_t __bnxt_copy_ctx_mem(struct bnxt *bp, 9395 struct bnxt_ctx_mem_type *ctxm, void *buf, 9396 size_t offset, size_t head, size_t tail) 9397 { 9398 struct bnxt_ctx_pg_info *ctx_pg = ctxm->pg_info; 9399 size_t len = 0, total_len = 0; 9400 int i, n = 1; 9401 9402 if (!ctx_pg) 9403 return 0; 9404 9405 if (ctxm->instance_bmap) 9406 n = hweight32(ctxm->instance_bmap); 9407 for (i = 0; i < n; i++) { 9408 len = bnxt_copy_ctx_pg_tbls(bp, &ctx_pg[i], buf, offset, head, 9409 tail); 9410 offset += len; 9411 total_len += len; 9412 } 9413 return total_len; 9414 } 9415 9416 size_t bnxt_copy_ctx_mem(struct bnxt *bp, struct bnxt_ctx_mem_type *ctxm, 9417 void *buf, size_t offset) 9418 { 9419 size_t tail = ctxm->max_entries * ctxm->entry_size; 9420 9421 return __bnxt_copy_ctx_mem(bp, ctxm, buf, offset, 0, tail); 9422 } 9423 9424 static void bnxt_free_one_ctx_mem(struct bnxt *bp, 9425 struct bnxt_ctx_mem_type *ctxm, bool force) 9426 { 9427 struct bnxt_ctx_pg_info *ctx_pg; 9428 int i, n = 1; 9429 9430 ctxm->last = 0; 9431 9432 if (ctxm->mem_valid && !force && (ctxm->flags & BNXT_CTX_MEM_PERSIST)) 9433 return; 9434 9435 ctx_pg = ctxm->pg_info; 9436 if (ctx_pg) { 9437 if (ctxm->instance_bmap) 9438 n = hweight32(ctxm->instance_bmap); 9439 for (i = 0; i < n; i++) 9440 bnxt_free_ctx_pg_tbls(bp, &ctx_pg[i]); 9441 9442 kfree(ctx_pg); 9443 ctxm->pg_info = NULL; 9444 ctxm->mem_valid = 0; 9445 } 9446 memset(ctxm, 0, sizeof(*ctxm)); 9447 } 9448 9449 void bnxt_free_ctx_mem(struct bnxt *bp, bool force) 9450 { 9451 struct bnxt_ctx_mem_info *ctx = bp->ctx; 9452 u16 type; 9453 9454 if (!ctx) 9455 return; 9456 9457 for (type = 0; type < BNXT_CTX_V2_MAX; type++) 9458 bnxt_free_one_ctx_mem(bp, &ctx->ctx_arr[type], force); 9459 9460 ctx->flags &= ~BNXT_CTX_FLAG_INITED; 9461 if (force) { 9462 kfree(ctx); 9463 bp->ctx = NULL; 9464 } 9465 } 9466 9467 static int bnxt_alloc_ctx_mem(struct bnxt *bp) 9468 { 9469 struct bnxt_ctx_mem_type *ctxm; 9470 struct bnxt_ctx_mem_info *ctx; 9471 u32 l2_qps, qp1_qps, max_qps; 9472 u32 ena, entries_sp, entries; 9473 u32 srqs, max_srqs, min; 9474 u32 num_mr, num_ah; 9475 u32 extra_srqs = 0; 9476 u32 extra_qps = 0; 9477 u32 fast_qpmd_qps; 9478 u8 pg_lvl = 1; 9479 int i, rc; 9480 9481 rc = bnxt_hwrm_func_backing_store_qcaps(bp); 9482 if (rc) { 9483 netdev_err(bp->dev, "Failed querying context mem capability, rc = %d.\n", 9484 rc); 9485 return rc; 9486 } 9487 ctx = bp->ctx; 9488 if (!ctx || (ctx->flags & BNXT_CTX_FLAG_INITED)) 9489 return 0; 9490 9491 ena = 0; 9492 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 9493 goto skip_legacy; 9494 9495 ctxm = &ctx->ctx_arr[BNXT_CTX_QP]; 9496 l2_qps = ctxm->qp_l2_entries; 9497 qp1_qps = ctxm->qp_qp1_entries; 9498 fast_qpmd_qps = ctxm->qp_fast_qpmd_entries; 9499 max_qps = ctxm->max_entries; 9500 ctxm = &ctx->ctx_arr[BNXT_CTX_SRQ]; 9501 srqs = ctxm->srq_l2_entries; 9502 max_srqs = ctxm->max_entries; 9503 if ((bp->flags & BNXT_FLAG_ROCE_CAP) && !is_kdump_kernel()) { 9504 pg_lvl = 2; 9505 if (BNXT_SW_RES_LMT(bp)) { 9506 extra_qps = max_qps - l2_qps - qp1_qps; 9507 extra_srqs = max_srqs - srqs; 9508 } else { 9509 extra_qps = min_t(u32, 65536, 9510 max_qps - l2_qps - qp1_qps); 9511 /* allocate extra qps if fw supports RoCE fast qp 9512 * destroy feature 9513 */ 9514 extra_qps += fast_qpmd_qps; 9515 extra_srqs = min_t(u32, 8192, max_srqs - srqs); 9516 } 9517 if (fast_qpmd_qps) 9518 ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP_FAST_QPMD; 9519 } 9520 9521 ctxm = &ctx->ctx_arr[BNXT_CTX_QP]; 9522 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, l2_qps + qp1_qps + extra_qps, 9523 pg_lvl); 9524 if (rc) 9525 return rc; 9526 9527 ctxm = &ctx->ctx_arr[BNXT_CTX_SRQ]; 9528 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, srqs + extra_srqs, pg_lvl); 9529 if (rc) 9530 return rc; 9531 9532 ctxm = &ctx->ctx_arr[BNXT_CTX_CQ]; 9533 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, ctxm->cq_l2_entries + 9534 extra_qps * 2, pg_lvl); 9535 if (rc) 9536 return rc; 9537 9538 ctxm = &ctx->ctx_arr[BNXT_CTX_VNIC]; 9539 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, ctxm->max_entries, 1); 9540 if (rc) 9541 return rc; 9542 9543 ctxm = &ctx->ctx_arr[BNXT_CTX_STAT]; 9544 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, ctxm->max_entries, 1); 9545 if (rc) 9546 return rc; 9547 9548 if (!(bp->flags & BNXT_FLAG_ROCE_CAP)) 9549 goto skip_rdma; 9550 9551 ctxm = &ctx->ctx_arr[BNXT_CTX_MRAV]; 9552 if (BNXT_SW_RES_LMT(bp) && 9553 ctxm->split_entry_cnt == BNXT_CTX_MRAV_AV_SPLIT_ENTRY + 1) { 9554 num_ah = ctxm->mrav_av_entries; 9555 num_mr = ctxm->max_entries - num_ah; 9556 } else { 9557 /* 128K extra is needed to accommodate static AH context 9558 * allocation by f/w. 9559 */ 9560 num_mr = min_t(u32, ctxm->max_entries / 2, 1024 * 256); 9561 num_ah = min_t(u32, num_mr, 1024 * 128); 9562 ctxm->split_entry_cnt = BNXT_CTX_MRAV_AV_SPLIT_ENTRY + 1; 9563 if (!ctxm->mrav_av_entries || ctxm->mrav_av_entries > num_ah) 9564 ctxm->mrav_av_entries = num_ah; 9565 } 9566 9567 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, num_mr + num_ah, 2); 9568 if (rc) 9569 return rc; 9570 ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV; 9571 9572 ctxm = &ctx->ctx_arr[BNXT_CTX_TIM]; 9573 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, l2_qps + qp1_qps + extra_qps, 1); 9574 if (rc) 9575 return rc; 9576 ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM; 9577 9578 skip_rdma: 9579 ctxm = &ctx->ctx_arr[BNXT_CTX_STQM]; 9580 min = ctxm->min_entries; 9581 entries_sp = ctx->ctx_arr[BNXT_CTX_VNIC].vnic_entries + l2_qps + 9582 2 * (extra_qps + qp1_qps) + min; 9583 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, entries_sp, 2); 9584 if (rc) 9585 return rc; 9586 9587 ctxm = &ctx->ctx_arr[BNXT_CTX_FTQM]; 9588 entries = l2_qps + 2 * (extra_qps + qp1_qps); 9589 rc = bnxt_setup_ctxm_pg_tbls(bp, ctxm, entries, 2); 9590 if (rc) 9591 return rc; 9592 for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) 9593 ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP << i; 9594 ena |= FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES; 9595 9596 skip_legacy: 9597 if (bp->fw_cap & BNXT_FW_CAP_BACKING_STORE_V2) 9598 rc = bnxt_backing_store_cfg_v2(bp); 9599 else 9600 rc = bnxt_hwrm_func_backing_store_cfg(bp, ena); 9601 if (rc) { 9602 netdev_err(bp->dev, "Failed configuring context mem, rc = %d.\n", 9603 rc); 9604 return rc; 9605 } 9606 ctx->flags |= BNXT_CTX_FLAG_INITED; 9607 return 0; 9608 } 9609 9610 static int bnxt_hwrm_crash_dump_mem_cfg(struct bnxt *bp) 9611 { 9612 struct hwrm_dbg_crashdump_medium_cfg_input *req; 9613 u16 page_attr; 9614 int rc; 9615 9616 if (!(bp->fw_dbg_cap & DBG_QCAPS_RESP_FLAGS_CRASHDUMP_HOST_DDR)) 9617 return 0; 9618 9619 rc = hwrm_req_init(bp, req, HWRM_DBG_CRASHDUMP_MEDIUM_CFG); 9620 if (rc) 9621 return rc; 9622 9623 if (BNXT_PAGE_SIZE == 0x2000) 9624 page_attr = DBG_CRASHDUMP_MEDIUM_CFG_REQ_PG_SIZE_PG_8K; 9625 else if (BNXT_PAGE_SIZE == 0x10000) 9626 page_attr = DBG_CRASHDUMP_MEDIUM_CFG_REQ_PG_SIZE_PG_64K; 9627 else 9628 page_attr = DBG_CRASHDUMP_MEDIUM_CFG_REQ_PG_SIZE_PG_4K; 9629 req->pg_size_lvl = cpu_to_le16(page_attr | 9630 bp->fw_crash_mem->ring_mem.depth); 9631 req->pbl = cpu_to_le64(bp->fw_crash_mem->ring_mem.pg_tbl_map); 9632 req->size = cpu_to_le32(bp->fw_crash_len); 9633 req->output_dest_flags = cpu_to_le16(BNXT_DBG_CR_DUMP_MDM_CFG_DDR); 9634 return hwrm_req_send(bp, req); 9635 } 9636 9637 static void bnxt_free_crash_dump_mem(struct bnxt *bp) 9638 { 9639 if (bp->fw_crash_mem) { 9640 bnxt_free_ctx_pg_tbls(bp, bp->fw_crash_mem); 9641 kfree(bp->fw_crash_mem); 9642 bp->fw_crash_mem = NULL; 9643 } 9644 } 9645 9646 static int bnxt_alloc_crash_dump_mem(struct bnxt *bp) 9647 { 9648 u32 mem_size = 0; 9649 int rc; 9650 9651 if (!(bp->fw_dbg_cap & DBG_QCAPS_RESP_FLAGS_CRASHDUMP_HOST_DDR)) 9652 return 0; 9653 9654 rc = bnxt_hwrm_get_dump_len(bp, BNXT_DUMP_CRASH, &mem_size); 9655 if (rc) 9656 return rc; 9657 9658 mem_size = round_up(mem_size, 4); 9659 9660 /* keep and use the existing pages */ 9661 if (bp->fw_crash_mem && 9662 mem_size <= bp->fw_crash_mem->nr_pages * BNXT_PAGE_SIZE) 9663 goto alloc_done; 9664 9665 if (bp->fw_crash_mem) 9666 bnxt_free_ctx_pg_tbls(bp, bp->fw_crash_mem); 9667 else 9668 bp->fw_crash_mem = kzalloc_obj(*bp->fw_crash_mem); 9669 if (!bp->fw_crash_mem) 9670 return -ENOMEM; 9671 9672 rc = bnxt_alloc_ctx_pg_tbls(bp, bp->fw_crash_mem, mem_size, 1, NULL); 9673 if (rc) { 9674 bnxt_free_crash_dump_mem(bp); 9675 return rc; 9676 } 9677 9678 alloc_done: 9679 bp->fw_crash_len = mem_size; 9680 return 0; 9681 } 9682 9683 int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp, bool all) 9684 { 9685 struct hwrm_func_resource_qcaps_output *resp; 9686 struct hwrm_func_resource_qcaps_input *req; 9687 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 9688 int rc; 9689 9690 rc = hwrm_req_init(bp, req, HWRM_FUNC_RESOURCE_QCAPS); 9691 if (rc) 9692 return rc; 9693 9694 req->fid = cpu_to_le16(0xffff); 9695 resp = hwrm_req_hold(bp, req); 9696 rc = hwrm_req_send_silent(bp, req); 9697 if (rc) 9698 goto hwrm_func_resc_qcaps_exit; 9699 9700 hw_resc->max_tx_sch_inputs = le16_to_cpu(resp->max_tx_scheduler_inputs); 9701 if (!all) 9702 goto hwrm_func_resc_qcaps_exit; 9703 9704 hw_resc->min_rsscos_ctxs = le16_to_cpu(resp->min_rsscos_ctx); 9705 hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); 9706 hw_resc->min_cp_rings = le16_to_cpu(resp->min_cmpl_rings); 9707 hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); 9708 hw_resc->min_tx_rings = le16_to_cpu(resp->min_tx_rings); 9709 hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings); 9710 hw_resc->min_rx_rings = le16_to_cpu(resp->min_rx_rings); 9711 hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings); 9712 hw_resc->min_hw_ring_grps = le16_to_cpu(resp->min_hw_ring_grps); 9713 hw_resc->max_hw_ring_grps = le16_to_cpu(resp->max_hw_ring_grps); 9714 hw_resc->min_l2_ctxs = le16_to_cpu(resp->min_l2_ctxs); 9715 hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); 9716 hw_resc->min_vnics = le16_to_cpu(resp->min_vnics); 9717 hw_resc->max_vnics = le16_to_cpu(resp->max_vnics); 9718 hw_resc->min_stat_ctxs = le16_to_cpu(resp->min_stat_ctx); 9719 hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); 9720 9721 if (hw_resc->max_rsscos_ctxs >= 9722 hw_resc->max_vnics * BNXT_LARGE_RSS_TO_VNIC_RATIO) 9723 bp->rss_cap |= BNXT_RSS_CAP_LARGE_RSS_CTX; 9724 9725 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 9726 u16 max_msix = le16_to_cpu(resp->max_msix); 9727 9728 hw_resc->max_nqs = max_msix; 9729 hw_resc->max_hw_ring_grps = hw_resc->max_rx_rings; 9730 } 9731 9732 if (BNXT_PF(bp)) { 9733 struct bnxt_pf_info *pf = &bp->pf; 9734 9735 pf->vf_resv_strategy = 9736 le16_to_cpu(resp->vf_reservation_strategy); 9737 if (pf->vf_resv_strategy > BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC) 9738 pf->vf_resv_strategy = BNXT_VF_RESV_STRATEGY_MAXIMAL; 9739 } 9740 hwrm_func_resc_qcaps_exit: 9741 hwrm_req_drop(bp, req); 9742 return rc; 9743 } 9744 9745 static int __bnxt_hwrm_ptp_qcfg(struct bnxt *bp) 9746 { 9747 struct hwrm_port_mac_ptp_qcfg_output *resp; 9748 struct hwrm_port_mac_ptp_qcfg_input *req; 9749 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 9750 u8 flags; 9751 int rc; 9752 9753 if (bp->hwrm_spec_code < 0x10801 || !BNXT_CHIP_P5_PLUS(bp)) { 9754 rc = -ENODEV; 9755 goto no_ptp; 9756 } 9757 9758 rc = hwrm_req_init(bp, req, HWRM_PORT_MAC_PTP_QCFG); 9759 if (rc) 9760 goto no_ptp; 9761 9762 req->port_id = cpu_to_le16(bp->pf.port_id); 9763 resp = hwrm_req_hold(bp, req); 9764 rc = hwrm_req_send(bp, req); 9765 if (rc) 9766 goto exit; 9767 9768 flags = resp->flags; 9769 if (BNXT_CHIP_P5_AND_MINUS(bp) && 9770 !(flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_HWRM_ACCESS)) { 9771 rc = -ENODEV; 9772 goto exit; 9773 } 9774 if (!ptp) { 9775 ptp = kzalloc_obj(*ptp); 9776 if (!ptp) { 9777 rc = -ENOMEM; 9778 goto exit; 9779 } 9780 ptp->bp = bp; 9781 bp->ptp_cfg = ptp; 9782 } 9783 9784 if (flags & 9785 (PORT_MAC_PTP_QCFG_RESP_FLAGS_PARTIAL_DIRECT_ACCESS_REF_CLOCK | 9786 PORT_MAC_PTP_QCFG_RESP_FLAGS_64B_PHC_TIME)) { 9787 ptp->refclk_regs[0] = le32_to_cpu(resp->ts_ref_clock_reg_lower); 9788 ptp->refclk_regs[1] = le32_to_cpu(resp->ts_ref_clock_reg_upper); 9789 } else if (BNXT_CHIP_P5(bp)) { 9790 ptp->refclk_regs[0] = BNXT_TS_REG_TIMESYNC_TS0_LOWER; 9791 ptp->refclk_regs[1] = BNXT_TS_REG_TIMESYNC_TS0_UPPER; 9792 } else { 9793 rc = -ENODEV; 9794 goto exit; 9795 } 9796 ptp->rtc_configured = 9797 (flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_RTC_CONFIGURED) != 0; 9798 rc = bnxt_ptp_init(bp); 9799 if (rc) 9800 netdev_warn(bp->dev, "PTP initialization failed.\n"); 9801 exit: 9802 hwrm_req_drop(bp, req); 9803 if (!rc) 9804 return 0; 9805 9806 no_ptp: 9807 bnxt_ptp_clear(bp); 9808 kfree(ptp); 9809 bp->ptp_cfg = NULL; 9810 return rc; 9811 } 9812 9813 static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) 9814 { 9815 u32 flags, flags_ext, flags_ext2, flags_ext3; 9816 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 9817 struct hwrm_func_qcaps_output *resp; 9818 struct hwrm_func_qcaps_input *req; 9819 int rc; 9820 9821 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCAPS); 9822 if (rc) 9823 return rc; 9824 9825 req->fid = cpu_to_le16(0xffff); 9826 resp = hwrm_req_hold(bp, req); 9827 rc = hwrm_req_send(bp, req); 9828 if (rc) 9829 goto hwrm_func_qcaps_exit; 9830 9831 flags = le32_to_cpu(resp->flags); 9832 if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V1_SUPPORTED) 9833 bp->flags |= BNXT_FLAG_ROCEV1_CAP; 9834 if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED) 9835 bp->flags |= BNXT_FLAG_ROCEV2_CAP; 9836 if (flags & FUNC_QCAPS_RESP_FLAGS_LINK_ADMIN_STATUS_SUPPORTED) 9837 bp->fw_cap |= BNXT_FW_CAP_LINK_ADMIN; 9838 if (flags & FUNC_QCAPS_RESP_FLAGS_PCIE_STATS_SUPPORTED) 9839 bp->fw_cap |= BNXT_FW_CAP_PCIE_STATS_SUPPORTED; 9840 if (flags & FUNC_QCAPS_RESP_FLAGS_HOT_RESET_CAPABLE) 9841 bp->fw_cap |= BNXT_FW_CAP_HOT_RESET; 9842 if (flags & FUNC_QCAPS_RESP_FLAGS_EXT_STATS_SUPPORTED) 9843 bp->fw_cap |= BNXT_FW_CAP_EXT_STATS_SUPPORTED; 9844 if (flags & FUNC_QCAPS_RESP_FLAGS_ERROR_RECOVERY_CAPABLE) 9845 bp->fw_cap |= BNXT_FW_CAP_ERROR_RECOVERY; 9846 if (flags & FUNC_QCAPS_RESP_FLAGS_ERR_RECOVER_RELOAD) 9847 bp->fw_cap |= BNXT_FW_CAP_ERR_RECOVER_RELOAD; 9848 if (!(flags & FUNC_QCAPS_RESP_FLAGS_VLAN_ACCELERATION_TX_DISABLED)) 9849 bp->fw_cap |= BNXT_FW_CAP_VLAN_TX_INSERT; 9850 if (flags & FUNC_QCAPS_RESP_FLAGS_DBG_QCAPS_CMD_SUPPORTED) 9851 bp->fw_cap |= BNXT_FW_CAP_DBG_QCAPS; 9852 9853 flags_ext = le32_to_cpu(resp->flags_ext); 9854 if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_EXT_HW_STATS_SUPPORTED) 9855 bp->fw_cap |= BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED; 9856 if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_PPS_SUPPORTED)) 9857 bp->fw_cap |= BNXT_FW_CAP_PTP_PPS; 9858 if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_PTM_SUPPORTED) 9859 bp->fw_cap |= BNXT_FW_CAP_PTP_PTM; 9860 if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_64BIT_RTC_SUPPORTED) 9861 bp->fw_cap |= BNXT_FW_CAP_PTP_RTC; 9862 if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_HOT_RESET_IF_SUPPORT)) 9863 bp->fw_cap |= BNXT_FW_CAP_HOT_RESET_IF; 9864 if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_FW_LIVEPATCH_SUPPORTED)) 9865 bp->fw_cap |= BNXT_FW_CAP_LIVEPATCH; 9866 if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_NPAR_1_2_SUPPORTED) 9867 bp->fw_cap |= BNXT_FW_CAP_NPAR_1_2; 9868 if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_DFLT_VLAN_TPID_PCP_SUPPORTED)) 9869 bp->fw_cap |= BNXT_FW_CAP_DFLT_VLAN_TPID_PCP; 9870 if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_BS_V2_SUPPORTED) 9871 bp->fw_cap |= BNXT_FW_CAP_BACKING_STORE_V2; 9872 if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_TX_COAL_CMPL_CAP) 9873 bp->flags |= BNXT_FLAG_TX_COAL_CMPL; 9874 9875 flags_ext2 = le32_to_cpu(resp->flags_ext2); 9876 if (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_RX_ALL_PKTS_TIMESTAMPS_SUPPORTED) 9877 bp->fw_cap |= BNXT_FW_CAP_RX_ALL_PKT_TS; 9878 if (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_UDP_GSO_SUPPORTED) 9879 bp->flags |= BNXT_FLAG_UDP_GSO_CAP; 9880 if (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_TX_PKT_TS_CMPL_SUPPORTED) 9881 bp->fw_cap |= BNXT_FW_CAP_TX_TS_CMP; 9882 if (flags_ext2 & 9883 FUNC_QCAPS_RESP_FLAGS_EXT2_SW_MAX_RESOURCE_LIMITS_SUPPORTED) 9884 bp->fw_cap |= BNXT_FW_CAP_SW_MAX_RESOURCE_LIMITS; 9885 if (BNXT_PF(bp) && 9886 (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_ROCE_VF_RESOURCE_MGMT_SUPPORTED)) 9887 bp->fw_cap |= BNXT_FW_CAP_ROCE_VF_RESC_MGMT_SUPPORTED; 9888 9889 flags_ext3 = le32_to_cpu(resp->flags_ext3); 9890 if (flags_ext3 & FUNC_QCAPS_RESP_FLAGS_EXT3_ROCE_VF_DYN_ALLOC_SUPPORT) 9891 bp->fw_cap |= BNXT_FW_CAP_ROCE_VF_DYN_ALLOC_SUPPORT; 9892 if (flags_ext3 & FUNC_QCAPS_RESP_FLAGS_EXT3_MIRROR_ON_ROCE_SUPPORTED) 9893 bp->fw_cap |= BNXT_FW_CAP_MIRROR_ON_ROCE; 9894 9895 bp->tx_push_thresh = 0; 9896 if ((flags & FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED) && 9897 BNXT_FW_MAJ(bp) > 217) 9898 bp->tx_push_thresh = BNXT_TX_PUSH_THRESH; 9899 9900 hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); 9901 hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); 9902 hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings); 9903 hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings); 9904 hw_resc->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps); 9905 if (!hw_resc->max_hw_ring_grps) 9906 hw_resc->max_hw_ring_grps = hw_resc->max_tx_rings; 9907 hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); 9908 hw_resc->max_vnics = le16_to_cpu(resp->max_vnics); 9909 hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); 9910 9911 hw_resc->max_encap_records = le32_to_cpu(resp->max_encap_records); 9912 hw_resc->max_decap_records = le32_to_cpu(resp->max_decap_records); 9913 hw_resc->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows); 9914 hw_resc->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows); 9915 hw_resc->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows); 9916 hw_resc->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows); 9917 9918 if (BNXT_PF(bp)) { 9919 struct bnxt_pf_info *pf = &bp->pf; 9920 9921 pf->fw_fid = le16_to_cpu(resp->fid); 9922 pf->port_id = le16_to_cpu(resp->port_id); 9923 memcpy(pf->mac_addr, resp->mac_address, ETH_ALEN); 9924 pf->first_vf_id = le16_to_cpu(resp->first_vf_id); 9925 pf->max_vfs = le16_to_cpu(resp->max_vfs); 9926 bp->flags &= ~BNXT_FLAG_WOL_CAP; 9927 if (flags & FUNC_QCAPS_RESP_FLAGS_WOL_MAGICPKT_SUPPORTED) 9928 bp->flags |= BNXT_FLAG_WOL_CAP; 9929 if (flags & FUNC_QCAPS_RESP_FLAGS_PTP_SUPPORTED) { 9930 bp->fw_cap |= BNXT_FW_CAP_PTP; 9931 } else { 9932 bnxt_ptp_clear(bp); 9933 kfree(bp->ptp_cfg); 9934 bp->ptp_cfg = NULL; 9935 } 9936 } else { 9937 #ifdef CONFIG_BNXT_SRIOV 9938 struct bnxt_vf_info *vf = &bp->vf; 9939 9940 vf->fw_fid = le16_to_cpu(resp->fid); 9941 memcpy(vf->mac_addr, resp->mac_address, ETH_ALEN); 9942 #endif 9943 } 9944 bp->tso_max_segs = le16_to_cpu(resp->max_tso_segs); 9945 9946 hwrm_func_qcaps_exit: 9947 hwrm_req_drop(bp, req); 9948 return rc; 9949 } 9950 9951 static void bnxt_hwrm_dbg_qcaps(struct bnxt *bp) 9952 { 9953 struct hwrm_dbg_qcaps_output *resp; 9954 struct hwrm_dbg_qcaps_input *req; 9955 int rc; 9956 9957 bp->fw_dbg_cap = 0; 9958 if (!(bp->fw_cap & BNXT_FW_CAP_DBG_QCAPS)) 9959 return; 9960 9961 rc = hwrm_req_init(bp, req, HWRM_DBG_QCAPS); 9962 if (rc) 9963 return; 9964 9965 req->fid = cpu_to_le16(0xffff); 9966 resp = hwrm_req_hold(bp, req); 9967 rc = hwrm_req_send(bp, req); 9968 if (rc) 9969 goto hwrm_dbg_qcaps_exit; 9970 9971 bp->fw_dbg_cap = le32_to_cpu(resp->flags); 9972 9973 hwrm_dbg_qcaps_exit: 9974 hwrm_req_drop(bp, req); 9975 } 9976 9977 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp); 9978 9979 int bnxt_hwrm_func_qcaps(struct bnxt *bp) 9980 { 9981 int rc; 9982 9983 rc = __bnxt_hwrm_func_qcaps(bp); 9984 if (rc) 9985 return rc; 9986 9987 bnxt_hwrm_dbg_qcaps(bp); 9988 9989 rc = bnxt_hwrm_queue_qportcfg(bp); 9990 if (rc) { 9991 netdev_err(bp->dev, "hwrm query qportcfg failure rc: %d\n", rc); 9992 return rc; 9993 } 9994 if (bp->hwrm_spec_code >= 0x10803) { 9995 rc = bnxt_alloc_ctx_mem(bp); 9996 if (rc) 9997 return rc; 9998 rc = bnxt_hwrm_func_resc_qcaps(bp, true); 9999 if (!rc) 10000 bp->fw_cap |= BNXT_FW_CAP_NEW_RM; 10001 } 10002 return 0; 10003 } 10004 10005 static int bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(struct bnxt *bp) 10006 { 10007 struct hwrm_cfa_adv_flow_mgnt_qcaps_output *resp; 10008 struct hwrm_cfa_adv_flow_mgnt_qcaps_input *req; 10009 u32 flags; 10010 int rc; 10011 10012 if (!(bp->fw_cap & BNXT_FW_CAP_CFA_ADV_FLOW)) 10013 return 0; 10014 10015 rc = hwrm_req_init(bp, req, HWRM_CFA_ADV_FLOW_MGNT_QCAPS); 10016 if (rc) 10017 return rc; 10018 10019 resp = hwrm_req_hold(bp, req); 10020 rc = hwrm_req_send(bp, req); 10021 if (rc) 10022 goto hwrm_cfa_adv_qcaps_exit; 10023 10024 flags = le32_to_cpu(resp->flags); 10025 if (flags & 10026 CFA_ADV_FLOW_MGNT_QCAPS_RESP_FLAGS_RFS_RING_TBL_IDX_V2_SUPPORTED) 10027 bp->fw_cap |= BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2; 10028 10029 if (flags & 10030 CFA_ADV_FLOW_MGNT_QCAPS_RESP_FLAGS_RFS_RING_TBL_IDX_V3_SUPPORTED) 10031 bp->fw_cap |= BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V3; 10032 10033 if (flags & 10034 CFA_ADV_FLOW_MGNT_QCAPS_RESP_FLAGS_NTUPLE_FLOW_RX_EXT_IP_PROTO_SUPPORTED) 10035 bp->fw_cap |= BNXT_FW_CAP_CFA_NTUPLE_RX_EXT_IP_PROTO; 10036 10037 hwrm_cfa_adv_qcaps_exit: 10038 hwrm_req_drop(bp, req); 10039 return rc; 10040 } 10041 10042 static int __bnxt_alloc_fw_health(struct bnxt *bp) 10043 { 10044 if (bp->fw_health) 10045 return 0; 10046 10047 bp->fw_health = kzalloc_obj(*bp->fw_health); 10048 if (!bp->fw_health) 10049 return -ENOMEM; 10050 10051 mutex_init(&bp->fw_health->lock); 10052 return 0; 10053 } 10054 10055 static int bnxt_alloc_fw_health(struct bnxt *bp) 10056 { 10057 int rc; 10058 10059 if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) && 10060 !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) 10061 return 0; 10062 10063 rc = __bnxt_alloc_fw_health(bp); 10064 if (rc) { 10065 bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET; 10066 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY; 10067 return rc; 10068 } 10069 10070 return 0; 10071 } 10072 10073 static void __bnxt_map_fw_health_reg(struct bnxt *bp, u32 reg) 10074 { 10075 writel(reg & BNXT_GRC_BASE_MASK, bp->bar0 + 10076 BNXT_GRCPF_REG_WINDOW_BASE_OUT + 10077 BNXT_FW_HEALTH_WIN_MAP_OFF); 10078 } 10079 10080 static void bnxt_inv_fw_health_reg(struct bnxt *bp) 10081 { 10082 struct bnxt_fw_health *fw_health = bp->fw_health; 10083 u32 reg_type; 10084 10085 if (!fw_health) 10086 return; 10087 10088 reg_type = BNXT_FW_HEALTH_REG_TYPE(fw_health->regs[BNXT_FW_HEALTH_REG]); 10089 if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) 10090 fw_health->status_reliable = false; 10091 10092 reg_type = BNXT_FW_HEALTH_REG_TYPE(fw_health->regs[BNXT_FW_RESET_CNT_REG]); 10093 if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) 10094 fw_health->resets_reliable = false; 10095 } 10096 10097 static void bnxt_try_map_fw_health_reg(struct bnxt *bp) 10098 { 10099 void __iomem *hs; 10100 u32 status_loc; 10101 u32 reg_type; 10102 u32 sig; 10103 10104 if (bp->fw_health) 10105 bp->fw_health->status_reliable = false; 10106 10107 __bnxt_map_fw_health_reg(bp, HCOMM_STATUS_STRUCT_LOC); 10108 hs = bp->bar0 + BNXT_FW_HEALTH_WIN_OFF(HCOMM_STATUS_STRUCT_LOC); 10109 10110 sig = readl(hs + offsetof(struct hcomm_status, sig_ver)); 10111 if ((sig & HCOMM_STATUS_SIGNATURE_MASK) != HCOMM_STATUS_SIGNATURE_VAL) { 10112 if (!bp->chip_num) { 10113 __bnxt_map_fw_health_reg(bp, BNXT_GRC_REG_BASE); 10114 bp->chip_num = readl(bp->bar0 + 10115 BNXT_FW_HEALTH_WIN_BASE + 10116 BNXT_GRC_REG_CHIP_NUM); 10117 } 10118 if (!BNXT_CHIP_P5_PLUS(bp)) 10119 return; 10120 10121 status_loc = BNXT_GRC_REG_STATUS_P5 | 10122 BNXT_FW_HEALTH_REG_TYPE_BAR0; 10123 } else { 10124 status_loc = readl(hs + offsetof(struct hcomm_status, 10125 fw_status_loc)); 10126 } 10127 10128 if (__bnxt_alloc_fw_health(bp)) { 10129 netdev_warn(bp->dev, "no memory for firmware status checks\n"); 10130 return; 10131 } 10132 10133 bp->fw_health->regs[BNXT_FW_HEALTH_REG] = status_loc; 10134 reg_type = BNXT_FW_HEALTH_REG_TYPE(status_loc); 10135 if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) { 10136 __bnxt_map_fw_health_reg(bp, status_loc); 10137 bp->fw_health->mapped_regs[BNXT_FW_HEALTH_REG] = 10138 BNXT_FW_HEALTH_WIN_OFF(status_loc); 10139 } 10140 10141 bp->fw_health->status_reliable = true; 10142 } 10143 10144 static int bnxt_map_fw_health_regs(struct bnxt *bp) 10145 { 10146 struct bnxt_fw_health *fw_health = bp->fw_health; 10147 u32 reg_base = 0xffffffff; 10148 int i; 10149 10150 bp->fw_health->status_reliable = false; 10151 bp->fw_health->resets_reliable = false; 10152 /* Only pre-map the monitoring GRC registers using window 3 */ 10153 for (i = 0; i < 4; i++) { 10154 u32 reg = fw_health->regs[i]; 10155 10156 if (BNXT_FW_HEALTH_REG_TYPE(reg) != BNXT_FW_HEALTH_REG_TYPE_GRC) 10157 continue; 10158 if (reg_base == 0xffffffff) 10159 reg_base = reg & BNXT_GRC_BASE_MASK; 10160 if ((reg & BNXT_GRC_BASE_MASK) != reg_base) 10161 return -ERANGE; 10162 fw_health->mapped_regs[i] = BNXT_FW_HEALTH_WIN_OFF(reg); 10163 } 10164 bp->fw_health->status_reliable = true; 10165 bp->fw_health->resets_reliable = true; 10166 if (reg_base == 0xffffffff) 10167 return 0; 10168 10169 __bnxt_map_fw_health_reg(bp, reg_base); 10170 return 0; 10171 } 10172 10173 static void bnxt_remap_fw_health_regs(struct bnxt *bp) 10174 { 10175 if (!bp->fw_health) 10176 return; 10177 10178 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) { 10179 bp->fw_health->status_reliable = true; 10180 bp->fw_health->resets_reliable = true; 10181 } else { 10182 bnxt_try_map_fw_health_reg(bp); 10183 } 10184 } 10185 10186 static int bnxt_hwrm_error_recovery_qcfg(struct bnxt *bp) 10187 { 10188 struct bnxt_fw_health *fw_health = bp->fw_health; 10189 struct hwrm_error_recovery_qcfg_output *resp; 10190 struct hwrm_error_recovery_qcfg_input *req; 10191 int rc, i; 10192 10193 if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) 10194 return 0; 10195 10196 rc = hwrm_req_init(bp, req, HWRM_ERROR_RECOVERY_QCFG); 10197 if (rc) 10198 return rc; 10199 10200 resp = hwrm_req_hold(bp, req); 10201 rc = hwrm_req_send(bp, req); 10202 if (rc) 10203 goto err_recovery_out; 10204 fw_health->flags = le32_to_cpu(resp->flags); 10205 if ((fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) && 10206 !(bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL)) { 10207 rc = -EINVAL; 10208 goto err_recovery_out; 10209 } 10210 fw_health->polling_dsecs = le32_to_cpu(resp->driver_polling_freq); 10211 fw_health->master_func_wait_dsecs = 10212 le32_to_cpu(resp->master_func_wait_period); 10213 fw_health->normal_func_wait_dsecs = 10214 le32_to_cpu(resp->normal_func_wait_period); 10215 fw_health->post_reset_wait_dsecs = 10216 le32_to_cpu(resp->master_func_wait_period_after_reset); 10217 fw_health->post_reset_max_wait_dsecs = 10218 le32_to_cpu(resp->max_bailout_time_after_reset); 10219 fw_health->regs[BNXT_FW_HEALTH_REG] = 10220 le32_to_cpu(resp->fw_health_status_reg); 10221 fw_health->regs[BNXT_FW_HEARTBEAT_REG] = 10222 le32_to_cpu(resp->fw_heartbeat_reg); 10223 fw_health->regs[BNXT_FW_RESET_CNT_REG] = 10224 le32_to_cpu(resp->fw_reset_cnt_reg); 10225 fw_health->regs[BNXT_FW_RESET_INPROG_REG] = 10226 le32_to_cpu(resp->reset_inprogress_reg); 10227 fw_health->fw_reset_inprog_reg_mask = 10228 le32_to_cpu(resp->reset_inprogress_reg_mask); 10229 fw_health->fw_reset_seq_cnt = resp->reg_array_cnt; 10230 if (fw_health->fw_reset_seq_cnt >= 16) { 10231 rc = -EINVAL; 10232 goto err_recovery_out; 10233 } 10234 for (i = 0; i < fw_health->fw_reset_seq_cnt; i++) { 10235 fw_health->fw_reset_seq_regs[i] = 10236 le32_to_cpu(resp->reset_reg[i]); 10237 fw_health->fw_reset_seq_vals[i] = 10238 le32_to_cpu(resp->reset_reg_val[i]); 10239 fw_health->fw_reset_seq_delay_msec[i] = 10240 resp->delay_after_reset[i]; 10241 } 10242 err_recovery_out: 10243 hwrm_req_drop(bp, req); 10244 if (!rc) 10245 rc = bnxt_map_fw_health_regs(bp); 10246 if (rc) 10247 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY; 10248 return rc; 10249 } 10250 10251 static int bnxt_hwrm_func_reset(struct bnxt *bp) 10252 { 10253 struct hwrm_func_reset_input *req; 10254 int rc; 10255 10256 rc = hwrm_req_init(bp, req, HWRM_FUNC_RESET); 10257 if (rc) 10258 return rc; 10259 10260 req->enables = 0; 10261 hwrm_req_timeout(bp, req, HWRM_RESET_TIMEOUT); 10262 return hwrm_req_send(bp, req); 10263 } 10264 10265 static void bnxt_nvm_cfg_ver_get(struct bnxt *bp) 10266 { 10267 struct hwrm_nvm_get_dev_info_output nvm_info; 10268 10269 if (!bnxt_hwrm_nvm_get_dev_info(bp, &nvm_info)) 10270 snprintf(bp->nvm_cfg_ver, FW_VER_STR_LEN, "%d.%d.%d", 10271 nvm_info.nvm_cfg_ver_maj, nvm_info.nvm_cfg_ver_min, 10272 nvm_info.nvm_cfg_ver_upd); 10273 } 10274 10275 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp) 10276 { 10277 struct hwrm_queue_qportcfg_output *resp; 10278 struct hwrm_queue_qportcfg_input *req; 10279 u8 i, j, *qptr; 10280 bool no_rdma; 10281 int rc = 0; 10282 10283 rc = hwrm_req_init(bp, req, HWRM_QUEUE_QPORTCFG); 10284 if (rc) 10285 return rc; 10286 10287 resp = hwrm_req_hold(bp, req); 10288 rc = hwrm_req_send(bp, req); 10289 if (rc) 10290 goto qportcfg_exit; 10291 10292 if (!resp->max_configurable_queues) { 10293 rc = -EINVAL; 10294 goto qportcfg_exit; 10295 } 10296 bp->max_tc = resp->max_configurable_queues; 10297 bp->max_lltc = resp->max_configurable_lossless_queues; 10298 if (bp->max_tc > BNXT_MAX_QUEUE) 10299 bp->max_tc = BNXT_MAX_QUEUE; 10300 10301 no_rdma = !(bp->flags & BNXT_FLAG_ROCE_CAP); 10302 qptr = &resp->queue_id0; 10303 for (i = 0, j = 0; i < bp->max_tc; i++) { 10304 bp->q_info[j].queue_id = *qptr; 10305 bp->q_ids[i] = *qptr++; 10306 bp->q_info[j].queue_profile = *qptr++; 10307 bp->tc_to_qidx[j] = j; 10308 if (!BNXT_CNPQ(bp->q_info[j].queue_profile) || 10309 (no_rdma && BNXT_PF(bp))) 10310 j++; 10311 } 10312 bp->max_q = bp->max_tc; 10313 bp->max_tc = max_t(u8, j, 1); 10314 10315 if (resp->queue_cfg_info & QUEUE_QPORTCFG_RESP_QUEUE_CFG_INFO_ASYM_CFG) 10316 bp->max_tc = 1; 10317 10318 if (bp->max_lltc > bp->max_tc) 10319 bp->max_lltc = bp->max_tc; 10320 10321 qportcfg_exit: 10322 hwrm_req_drop(bp, req); 10323 return rc; 10324 } 10325 10326 static int bnxt_hwrm_poll(struct bnxt *bp) 10327 { 10328 struct hwrm_ver_get_input *req; 10329 int rc; 10330 10331 rc = hwrm_req_init(bp, req, HWRM_VER_GET); 10332 if (rc) 10333 return rc; 10334 10335 req->hwrm_intf_maj = HWRM_VERSION_MAJOR; 10336 req->hwrm_intf_min = HWRM_VERSION_MINOR; 10337 req->hwrm_intf_upd = HWRM_VERSION_UPDATE; 10338 10339 hwrm_req_flags(bp, req, BNXT_HWRM_CTX_SILENT | BNXT_HWRM_FULL_WAIT); 10340 rc = hwrm_req_send(bp, req); 10341 return rc; 10342 } 10343 10344 static int bnxt_hwrm_ver_get(struct bnxt *bp) 10345 { 10346 struct hwrm_ver_get_output *resp; 10347 struct hwrm_ver_get_input *req; 10348 u16 fw_maj, fw_min, fw_bld, fw_rsv; 10349 u32 dev_caps_cfg, hwrm_ver; 10350 int rc, len, max_tmo_secs; 10351 10352 rc = hwrm_req_init(bp, req, HWRM_VER_GET); 10353 if (rc) 10354 return rc; 10355 10356 hwrm_req_flags(bp, req, BNXT_HWRM_FULL_WAIT); 10357 bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN; 10358 req->hwrm_intf_maj = HWRM_VERSION_MAJOR; 10359 req->hwrm_intf_min = HWRM_VERSION_MINOR; 10360 req->hwrm_intf_upd = HWRM_VERSION_UPDATE; 10361 10362 resp = hwrm_req_hold(bp, req); 10363 rc = hwrm_req_send(bp, req); 10364 if (rc) 10365 goto hwrm_ver_get_exit; 10366 10367 memcpy(&bp->ver_resp, resp, sizeof(struct hwrm_ver_get_output)); 10368 10369 bp->hwrm_spec_code = resp->hwrm_intf_maj_8b << 16 | 10370 resp->hwrm_intf_min_8b << 8 | 10371 resp->hwrm_intf_upd_8b; 10372 if (resp->hwrm_intf_maj_8b < 1) { 10373 netdev_warn(bp->dev, "HWRM interface %d.%d.%d is older than 1.0.0.\n", 10374 resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b, 10375 resp->hwrm_intf_upd_8b); 10376 netdev_warn(bp->dev, "Please update firmware with HWRM interface 1.0.0 or newer.\n"); 10377 } 10378 10379 hwrm_ver = HWRM_VERSION_MAJOR << 16 | HWRM_VERSION_MINOR << 8 | 10380 HWRM_VERSION_UPDATE; 10381 10382 if (bp->hwrm_spec_code > hwrm_ver) 10383 snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d", 10384 HWRM_VERSION_MAJOR, HWRM_VERSION_MINOR, 10385 HWRM_VERSION_UPDATE); 10386 else 10387 snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d", 10388 resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b, 10389 resp->hwrm_intf_upd_8b); 10390 10391 fw_maj = le16_to_cpu(resp->hwrm_fw_major); 10392 if (bp->hwrm_spec_code > 0x10803 && fw_maj) { 10393 fw_min = le16_to_cpu(resp->hwrm_fw_minor); 10394 fw_bld = le16_to_cpu(resp->hwrm_fw_build); 10395 fw_rsv = le16_to_cpu(resp->hwrm_fw_patch); 10396 len = FW_VER_STR_LEN; 10397 } else { 10398 fw_maj = resp->hwrm_fw_maj_8b; 10399 fw_min = resp->hwrm_fw_min_8b; 10400 fw_bld = resp->hwrm_fw_bld_8b; 10401 fw_rsv = resp->hwrm_fw_rsvd_8b; 10402 len = BC_HWRM_STR_LEN; 10403 } 10404 bp->fw_ver_code = BNXT_FW_VER_CODE(fw_maj, fw_min, fw_bld, fw_rsv); 10405 snprintf(bp->fw_ver_str, len, "%d.%d.%d.%d", fw_maj, fw_min, fw_bld, 10406 fw_rsv); 10407 10408 if (strlen(resp->active_pkg_name)) { 10409 int fw_ver_len = strlen(bp->fw_ver_str); 10410 10411 snprintf(bp->fw_ver_str + fw_ver_len, 10412 FW_VER_STR_LEN - fw_ver_len - 1, "/pkg %s", 10413 resp->active_pkg_name); 10414 bp->fw_cap |= BNXT_FW_CAP_PKG_VER; 10415 } 10416 10417 bp->hwrm_cmd_timeout = le16_to_cpu(resp->def_req_timeout); 10418 if (!bp->hwrm_cmd_timeout) 10419 bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT; 10420 bp->hwrm_cmd_max_timeout = le16_to_cpu(resp->max_req_timeout) * 1000; 10421 if (!bp->hwrm_cmd_max_timeout) 10422 bp->hwrm_cmd_max_timeout = HWRM_CMD_MAX_TIMEOUT; 10423 max_tmo_secs = bp->hwrm_cmd_max_timeout / 1000; 10424 #ifdef CONFIG_DETECT_HUNG_TASK 10425 if (bp->hwrm_cmd_max_timeout > HWRM_CMD_MAX_TIMEOUT || 10426 max_tmo_secs > CONFIG_DEFAULT_HUNG_TASK_TIMEOUT) { 10427 netdev_warn(bp->dev, "Device requests max timeout of %d seconds, may trigger hung task watchdog (kernel default %ds)\n", 10428 max_tmo_secs, CONFIG_DEFAULT_HUNG_TASK_TIMEOUT); 10429 } 10430 #endif 10431 10432 if (resp->hwrm_intf_maj_8b >= 1) { 10433 bp->hwrm_max_req_len = le16_to_cpu(resp->max_req_win_len); 10434 bp->hwrm_max_ext_req_len = le16_to_cpu(resp->max_ext_req_len); 10435 } 10436 if (bp->hwrm_max_ext_req_len < HWRM_MAX_REQ_LEN) 10437 bp->hwrm_max_ext_req_len = HWRM_MAX_REQ_LEN; 10438 10439 bp->chip_num = le16_to_cpu(resp->chip_num); 10440 bp->chip_rev = resp->chip_rev; 10441 if (bp->chip_num == CHIP_NUM_58700 && !resp->chip_rev && 10442 !resp->chip_metal) 10443 bp->flags |= BNXT_FLAG_CHIP_NITRO_A0; 10444 10445 dev_caps_cfg = le32_to_cpu(resp->dev_caps_cfg); 10446 if ((dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_SUPPORTED) && 10447 (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_REQUIRED)) 10448 bp->fw_cap |= BNXT_FW_CAP_SHORT_CMD; 10449 10450 if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_KONG_MB_CHNL_SUPPORTED) 10451 bp->fw_cap |= BNXT_FW_CAP_KONG_MB_CHNL; 10452 10453 if (dev_caps_cfg & 10454 VER_GET_RESP_DEV_CAPS_CFG_FLOW_HANDLE_64BIT_SUPPORTED) 10455 bp->fw_cap |= BNXT_FW_CAP_OVS_64BIT_HANDLE; 10456 10457 if (dev_caps_cfg & 10458 VER_GET_RESP_DEV_CAPS_CFG_TRUSTED_VF_SUPPORTED) 10459 bp->fw_cap |= BNXT_FW_CAP_TRUSTED_VF; 10460 10461 if (dev_caps_cfg & 10462 VER_GET_RESP_DEV_CAPS_CFG_CFA_ADV_FLOW_MGNT_SUPPORTED) 10463 bp->fw_cap |= BNXT_FW_CAP_CFA_ADV_FLOW; 10464 10465 hwrm_ver_get_exit: 10466 hwrm_req_drop(bp, req); 10467 return rc; 10468 } 10469 10470 int bnxt_hwrm_fw_set_time(struct bnxt *bp) 10471 { 10472 struct hwrm_fw_set_time_input *req; 10473 struct tm tm; 10474 time64_t now = ktime_get_real_seconds(); 10475 int rc; 10476 10477 if ((BNXT_VF(bp) && bp->hwrm_spec_code < 0x10901) || 10478 bp->hwrm_spec_code < 0x10400) 10479 return -EOPNOTSUPP; 10480 10481 time64_to_tm(now, 0, &tm); 10482 rc = hwrm_req_init(bp, req, HWRM_FW_SET_TIME); 10483 if (rc) 10484 return rc; 10485 10486 req->year = cpu_to_le16(1900 + tm.tm_year); 10487 req->month = 1 + tm.tm_mon; 10488 req->day = tm.tm_mday; 10489 req->hour = tm.tm_hour; 10490 req->minute = tm.tm_min; 10491 req->second = tm.tm_sec; 10492 return hwrm_req_send(bp, req); 10493 } 10494 10495 static void bnxt_add_one_ctr(u64 hw, u64 *sw, u64 mask) 10496 { 10497 u64 sw_tmp; 10498 10499 hw &= mask; 10500 sw_tmp = (*sw & ~mask) | hw; 10501 if (hw < (*sw & mask)) 10502 sw_tmp += mask + 1; 10503 WRITE_ONCE(*sw, sw_tmp); 10504 } 10505 10506 static void __bnxt_accumulate_stats(__le64 *hw_stats, u64 *sw_stats, u64 *masks, 10507 int count, bool ignore_zero) 10508 { 10509 int i; 10510 10511 for (i = 0; i < count; i++) { 10512 u64 hw = le64_to_cpu(READ_ONCE(hw_stats[i])); 10513 10514 if (ignore_zero && !hw) 10515 continue; 10516 10517 if (masks[i] == -1ULL) 10518 sw_stats[i] = hw; 10519 else 10520 bnxt_add_one_ctr(hw, &sw_stats[i], masks[i]); 10521 } 10522 } 10523 10524 static void bnxt_accumulate_stats(struct bnxt_stats_mem *stats) 10525 { 10526 if (!stats->hw_stats) 10527 return; 10528 10529 __bnxt_accumulate_stats(stats->hw_stats, stats->sw_stats, 10530 stats->hw_masks, stats->len / 8, false); 10531 } 10532 10533 static void bnxt_accumulate_all_stats(struct bnxt *bp) 10534 { 10535 struct bnxt_stats_mem *ring0_stats; 10536 bool ignore_zero = false; 10537 int i; 10538 10539 /* Chip bug. Counter intermittently becomes 0. */ 10540 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 10541 ignore_zero = true; 10542 10543 for (i = 0; i < bp->cp_nr_rings; i++) { 10544 struct bnxt_napi *bnapi = bp->bnapi[i]; 10545 struct bnxt_cp_ring_info *cpr; 10546 struct bnxt_stats_mem *stats; 10547 10548 cpr = &bnapi->cp_ring; 10549 stats = &cpr->stats; 10550 if (!i) 10551 ring0_stats = stats; 10552 __bnxt_accumulate_stats(stats->hw_stats, stats->sw_stats, 10553 ring0_stats->hw_masks, 10554 ring0_stats->len / 8, ignore_zero); 10555 } 10556 if (bp->flags & BNXT_FLAG_PORT_STATS) { 10557 struct bnxt_stats_mem *stats = &bp->port_stats; 10558 __le64 *hw_stats = stats->hw_stats; 10559 u64 *sw_stats = stats->sw_stats; 10560 u64 *masks = stats->hw_masks; 10561 int cnt; 10562 10563 cnt = sizeof(struct rx_port_stats) / 8; 10564 __bnxt_accumulate_stats(hw_stats, sw_stats, masks, cnt, false); 10565 10566 hw_stats += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 10567 sw_stats += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 10568 masks += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 10569 cnt = sizeof(struct tx_port_stats) / 8; 10570 __bnxt_accumulate_stats(hw_stats, sw_stats, masks, cnt, false); 10571 } 10572 if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) { 10573 bnxt_accumulate_stats(&bp->rx_port_stats_ext); 10574 bnxt_accumulate_stats(&bp->tx_port_stats_ext); 10575 } 10576 } 10577 10578 static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags) 10579 { 10580 struct hwrm_port_qstats_input *req; 10581 struct bnxt_pf_info *pf = &bp->pf; 10582 int rc; 10583 10584 if (!(bp->flags & BNXT_FLAG_PORT_STATS)) 10585 return 0; 10586 10587 if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED)) 10588 return -EOPNOTSUPP; 10589 10590 rc = hwrm_req_init(bp, req, HWRM_PORT_QSTATS); 10591 if (rc) 10592 return rc; 10593 10594 req->flags = flags; 10595 req->port_id = cpu_to_le16(pf->port_id); 10596 req->tx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map + 10597 BNXT_TX_PORT_STATS_BYTE_OFFSET); 10598 req->rx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map); 10599 return hwrm_req_send(bp, req); 10600 } 10601 10602 static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags) 10603 { 10604 struct hwrm_queue_pri2cos_qcfg_output *resp_qc; 10605 struct hwrm_queue_pri2cos_qcfg_input *req_qc; 10606 struct hwrm_port_qstats_ext_output *resp_qs; 10607 struct hwrm_port_qstats_ext_input *req_qs; 10608 struct bnxt_pf_info *pf = &bp->pf; 10609 u32 tx_stat_size; 10610 int rc; 10611 10612 if (!(bp->flags & BNXT_FLAG_PORT_STATS_EXT)) 10613 return 0; 10614 10615 if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED)) 10616 return -EOPNOTSUPP; 10617 10618 rc = hwrm_req_init(bp, req_qs, HWRM_PORT_QSTATS_EXT); 10619 if (rc) 10620 return rc; 10621 10622 req_qs->flags = flags; 10623 req_qs->port_id = cpu_to_le16(pf->port_id); 10624 req_qs->rx_stat_size = cpu_to_le16(sizeof(struct rx_port_stats_ext)); 10625 req_qs->rx_stat_host_addr = cpu_to_le64(bp->rx_port_stats_ext.hw_stats_map); 10626 tx_stat_size = bp->tx_port_stats_ext.hw_stats ? 10627 sizeof(struct tx_port_stats_ext) : 0; 10628 req_qs->tx_stat_size = cpu_to_le16(tx_stat_size); 10629 req_qs->tx_stat_host_addr = cpu_to_le64(bp->tx_port_stats_ext.hw_stats_map); 10630 resp_qs = hwrm_req_hold(bp, req_qs); 10631 rc = hwrm_req_send(bp, req_qs); 10632 if (!rc) { 10633 bp->fw_rx_stats_ext_size = 10634 le16_to_cpu(resp_qs->rx_stat_size) / 8; 10635 if (BNXT_FW_MAJ(bp) < 220 && 10636 bp->fw_rx_stats_ext_size > BNXT_RX_STATS_EXT_NUM_LEGACY) 10637 bp->fw_rx_stats_ext_size = BNXT_RX_STATS_EXT_NUM_LEGACY; 10638 10639 bp->fw_tx_stats_ext_size = tx_stat_size ? 10640 le16_to_cpu(resp_qs->tx_stat_size) / 8 : 0; 10641 } else { 10642 bp->fw_rx_stats_ext_size = 0; 10643 bp->fw_tx_stats_ext_size = 0; 10644 } 10645 hwrm_req_drop(bp, req_qs); 10646 10647 if (flags) 10648 return rc; 10649 10650 if (bp->fw_tx_stats_ext_size <= 10651 offsetof(struct tx_port_stats_ext, pfc_pri0_tx_duration_us) / 8) { 10652 bp->pri2cos_valid = 0; 10653 return rc; 10654 } 10655 10656 rc = hwrm_req_init(bp, req_qc, HWRM_QUEUE_PRI2COS_QCFG); 10657 if (rc) 10658 return rc; 10659 10660 req_qc->flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN); 10661 10662 resp_qc = hwrm_req_hold(bp, req_qc); 10663 rc = hwrm_req_send(bp, req_qc); 10664 if (!rc) { 10665 u8 *pri2cos; 10666 int i, j; 10667 10668 pri2cos = &resp_qc->pri0_cos_queue_id; 10669 for (i = 0; i < 8; i++) { 10670 u8 queue_id = pri2cos[i]; 10671 u8 queue_idx; 10672 10673 /* Per port queue IDs start from 0, 10, 20, etc */ 10674 queue_idx = queue_id % 10; 10675 if (queue_idx > BNXT_MAX_QUEUE) { 10676 bp->pri2cos_valid = false; 10677 hwrm_req_drop(bp, req_qc); 10678 return rc; 10679 } 10680 for (j = 0; j < bp->max_q; j++) { 10681 if (bp->q_ids[j] == queue_id) 10682 bp->pri2cos_idx[i] = queue_idx; 10683 } 10684 } 10685 bp->pri2cos_valid = true; 10686 } 10687 hwrm_req_drop(bp, req_qc); 10688 10689 return rc; 10690 } 10691 10692 static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp) 10693 { 10694 bnxt_hwrm_tunnel_dst_port_free(bp, 10695 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN); 10696 bnxt_hwrm_tunnel_dst_port_free(bp, 10697 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE); 10698 } 10699 10700 static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa) 10701 { 10702 int rc, i; 10703 u32 tpa_flags = 0; 10704 10705 if (set_tpa) 10706 tpa_flags = bp->flags & BNXT_FLAG_TPA; 10707 else if (BNXT_NO_FW_ACCESS(bp)) 10708 return 0; 10709 for (i = 0; i < bp->nr_vnics; i++) { 10710 rc = bnxt_hwrm_vnic_set_tpa(bp, &bp->vnic_info[i], tpa_flags); 10711 if (rc) { 10712 netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n", 10713 i, rc); 10714 return rc; 10715 } 10716 } 10717 return 0; 10718 } 10719 10720 static void bnxt_hwrm_clear_vnic_rss(struct bnxt *bp) 10721 { 10722 int i; 10723 10724 for (i = 0; i < bp->nr_vnics; i++) 10725 bnxt_hwrm_vnic_set_rss(bp, &bp->vnic_info[i], false); 10726 } 10727 10728 static void bnxt_clear_vnic(struct bnxt *bp) 10729 { 10730 if (!bp->vnic_info) 10731 return; 10732 10733 bnxt_hwrm_clear_vnic_filter(bp); 10734 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) { 10735 /* clear all RSS setting before free vnic ctx */ 10736 bnxt_hwrm_clear_vnic_rss(bp); 10737 bnxt_hwrm_vnic_ctx_free(bp); 10738 } 10739 /* before free the vnic, undo the vnic tpa settings */ 10740 if (bp->flags & BNXT_FLAG_TPA) 10741 bnxt_set_tpa(bp, false); 10742 bnxt_hwrm_vnic_free(bp); 10743 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 10744 bnxt_hwrm_vnic_ctx_free(bp); 10745 } 10746 10747 static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path, 10748 bool irq_re_init) 10749 { 10750 bnxt_clear_vnic(bp); 10751 bnxt_hwrm_ring_free(bp, close_path); 10752 bnxt_hwrm_ring_grp_free(bp); 10753 if (irq_re_init) { 10754 bnxt_hwrm_stat_ctx_free(bp); 10755 bnxt_hwrm_free_tunnel_ports(bp); 10756 } 10757 } 10758 10759 static int bnxt_hwrm_set_br_mode(struct bnxt *bp, u16 br_mode) 10760 { 10761 struct hwrm_func_cfg_input *req; 10762 u8 evb_mode; 10763 int rc; 10764 10765 if (br_mode == BRIDGE_MODE_VEB) 10766 evb_mode = FUNC_CFG_REQ_EVB_MODE_VEB; 10767 else if (br_mode == BRIDGE_MODE_VEPA) 10768 evb_mode = FUNC_CFG_REQ_EVB_MODE_VEPA; 10769 else 10770 return -EINVAL; 10771 10772 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req); 10773 if (rc) 10774 return rc; 10775 10776 req->fid = cpu_to_le16(0xffff); 10777 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_EVB_MODE); 10778 req->evb_mode = evb_mode; 10779 return hwrm_req_send(bp, req); 10780 } 10781 10782 static int bnxt_hwrm_set_cache_line_size(struct bnxt *bp, int size) 10783 { 10784 struct hwrm_func_cfg_input *req; 10785 int rc; 10786 10787 if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10803) 10788 return 0; 10789 10790 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req); 10791 if (rc) 10792 return rc; 10793 10794 req->fid = cpu_to_le16(0xffff); 10795 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_CACHE_LINESIZE); 10796 req->options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_64; 10797 if (size == 128) 10798 req->options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_128; 10799 10800 return hwrm_req_send(bp, req); 10801 } 10802 10803 static int __bnxt_setup_vnic(struct bnxt *bp, struct bnxt_vnic_info *vnic) 10804 { 10805 int rc; 10806 10807 if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) 10808 goto skip_rss_ctx; 10809 10810 /* allocate context for vnic */ 10811 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, 0); 10812 if (rc) { 10813 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n", 10814 vnic->vnic_id, rc); 10815 goto vnic_setup_err; 10816 } 10817 bp->rsscos_nr_ctxs++; 10818 10819 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 10820 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, 1); 10821 if (rc) { 10822 netdev_err(bp->dev, "hwrm vnic %d cos ctx alloc failure rc: %x\n", 10823 vnic->vnic_id, rc); 10824 goto vnic_setup_err; 10825 } 10826 bp->rsscos_nr_ctxs++; 10827 } 10828 10829 skip_rss_ctx: 10830 /* configure default vnic, ring grp */ 10831 rc = bnxt_hwrm_vnic_cfg(bp, vnic); 10832 if (rc) { 10833 netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n", 10834 vnic->vnic_id, rc); 10835 goto vnic_setup_err; 10836 } 10837 10838 /* Enable RSS hashing on vnic */ 10839 rc = bnxt_hwrm_vnic_set_rss(bp, vnic, true); 10840 if (rc) { 10841 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %x\n", 10842 vnic->vnic_id, rc); 10843 goto vnic_setup_err; 10844 } 10845 10846 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 10847 rc = bnxt_hwrm_vnic_set_hds(bp, vnic); 10848 if (rc) { 10849 netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n", 10850 vnic->vnic_id, rc); 10851 } 10852 } 10853 10854 vnic_setup_err: 10855 return rc; 10856 } 10857 10858 int bnxt_hwrm_vnic_update(struct bnxt *bp, struct bnxt_vnic_info *vnic, 10859 u8 valid) 10860 { 10861 struct hwrm_vnic_update_input *req; 10862 int rc; 10863 10864 rc = hwrm_req_init(bp, req, HWRM_VNIC_UPDATE); 10865 if (rc) 10866 return rc; 10867 10868 req->vnic_id = cpu_to_le32(vnic->fw_vnic_id); 10869 10870 if (valid & VNIC_UPDATE_REQ_ENABLES_MRU_VALID) 10871 req->mru = cpu_to_le16(vnic->mru); 10872 10873 req->enables = cpu_to_le32(valid); 10874 10875 return hwrm_req_send(bp, req); 10876 } 10877 10878 int bnxt_hwrm_vnic_rss_cfg_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic) 10879 { 10880 int rc; 10881 10882 rc = bnxt_hwrm_vnic_set_rss_p5(bp, vnic, true); 10883 if (rc) { 10884 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %d\n", 10885 vnic->vnic_id, rc); 10886 return rc; 10887 } 10888 rc = bnxt_hwrm_vnic_cfg(bp, vnic); 10889 if (rc) 10890 netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n", 10891 vnic->vnic_id, rc); 10892 return rc; 10893 } 10894 10895 int __bnxt_setup_vnic_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic) 10896 { 10897 int rc, i, nr_ctxs; 10898 10899 nr_ctxs = bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings); 10900 for (i = 0; i < nr_ctxs; i++) { 10901 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, i); 10902 if (rc) { 10903 netdev_err(bp->dev, "hwrm vnic %d ctx %d alloc failure rc: %x\n", 10904 vnic->vnic_id, i, rc); 10905 break; 10906 } 10907 bp->rsscos_nr_ctxs++; 10908 } 10909 if (i < nr_ctxs) 10910 return -ENOMEM; 10911 10912 rc = bnxt_hwrm_vnic_rss_cfg_p5(bp, vnic); 10913 if (rc) 10914 return rc; 10915 10916 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 10917 rc = bnxt_hwrm_vnic_set_hds(bp, vnic); 10918 if (rc) { 10919 netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n", 10920 vnic->vnic_id, rc); 10921 } 10922 } 10923 return rc; 10924 } 10925 10926 static int bnxt_setup_vnic(struct bnxt *bp, struct bnxt_vnic_info *vnic) 10927 { 10928 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 10929 return __bnxt_setup_vnic_p5(bp, vnic); 10930 else 10931 return __bnxt_setup_vnic(bp, vnic); 10932 } 10933 10934 static int bnxt_alloc_and_setup_vnic(struct bnxt *bp, 10935 struct bnxt_vnic_info *vnic, 10936 u16 start_rx_ring_idx, int rx_rings) 10937 { 10938 int rc; 10939 10940 rc = bnxt_hwrm_vnic_alloc(bp, vnic, start_rx_ring_idx, rx_rings); 10941 if (rc) { 10942 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n", 10943 vnic->vnic_id, rc); 10944 return rc; 10945 } 10946 return bnxt_setup_vnic(bp, vnic); 10947 } 10948 10949 static int bnxt_alloc_rfs_vnics(struct bnxt *bp) 10950 { 10951 struct bnxt_vnic_info *vnic; 10952 int i, rc = 0; 10953 10954 if (BNXT_SUPPORTS_NTUPLE_VNIC(bp)) { 10955 vnic = &bp->vnic_info[BNXT_VNIC_NTUPLE]; 10956 return bnxt_alloc_and_setup_vnic(bp, vnic, 0, bp->rx_nr_rings); 10957 } 10958 10959 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 10960 return 0; 10961 10962 for (i = 0; i < bp->rx_nr_rings; i++) { 10963 u16 vnic_id = i + 1; 10964 u16 ring_id = i; 10965 10966 if (vnic_id >= bp->nr_vnics) 10967 break; 10968 10969 vnic = &bp->vnic_info[vnic_id]; 10970 vnic->flags |= BNXT_VNIC_RFS_FLAG; 10971 if (bp->rss_cap & BNXT_RSS_CAP_NEW_RSS_CAP) 10972 vnic->flags |= BNXT_VNIC_RFS_NEW_RSS_FLAG; 10973 if (bnxt_alloc_and_setup_vnic(bp, &bp->vnic_info[vnic_id], ring_id, 1)) 10974 break; 10975 } 10976 return rc; 10977 } 10978 10979 void bnxt_del_one_rss_ctx(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx, 10980 bool all) 10981 { 10982 struct bnxt_vnic_info *vnic = &rss_ctx->vnic; 10983 struct bnxt_filter_base *usr_fltr, *tmp; 10984 struct bnxt_ntuple_filter *ntp_fltr; 10985 int i; 10986 10987 bnxt_hwrm_vnic_free_one(bp, &rss_ctx->vnic); 10988 for (i = 0; i < BNXT_MAX_CTX_PER_VNIC; i++) { 10989 if (vnic->fw_rss_cos_lb_ctx[i] != INVALID_HW_RING_ID) 10990 bnxt_hwrm_vnic_ctx_free_one(bp, vnic, i); 10991 } 10992 if (!all) 10993 return; 10994 10995 list_for_each_entry_safe(usr_fltr, tmp, &bp->usr_fltr_list, list) { 10996 if ((usr_fltr->flags & BNXT_ACT_RSS_CTX) && 10997 usr_fltr->fw_vnic_id == rss_ctx->index) { 10998 ntp_fltr = container_of(usr_fltr, 10999 struct bnxt_ntuple_filter, 11000 base); 11001 bnxt_hwrm_cfa_ntuple_filter_free(bp, ntp_fltr); 11002 bnxt_del_ntp_filter(bp, ntp_fltr); 11003 bnxt_del_one_usr_fltr(bp, usr_fltr); 11004 } 11005 } 11006 11007 if (vnic->rss_table) 11008 dma_free_coherent(&bp->pdev->dev, vnic->rss_table_size, 11009 vnic->rss_table, 11010 vnic->rss_table_dma_addr); 11011 bp->num_rss_ctx--; 11012 } 11013 11014 static bool bnxt_vnic_has_rx_ring(struct bnxt *bp, struct bnxt_vnic_info *vnic, 11015 int rxr_id) 11016 { 11017 u16 tbl_size = bnxt_get_rxfh_indir_size(bp->dev); 11018 int i, vnic_rx; 11019 11020 /* Ntuple VNIC always has all the rx rings. Any change of ring id 11021 * must be updated because a future filter may use it. 11022 */ 11023 if (vnic->flags & BNXT_VNIC_NTUPLE_FLAG) 11024 return true; 11025 11026 for (i = 0; i < tbl_size; i++) { 11027 if (vnic->flags & BNXT_VNIC_RSSCTX_FLAG) 11028 vnic_rx = ethtool_rxfh_context_indir(vnic->rss_ctx)[i]; 11029 else 11030 vnic_rx = bp->rss_indir_tbl[i]; 11031 11032 if (rxr_id == vnic_rx) 11033 return true; 11034 } 11035 11036 return false; 11037 } 11038 11039 static int bnxt_set_vnic_mru_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic, 11040 u16 mru, int rxr_id) 11041 { 11042 int rc; 11043 11044 if (!bnxt_vnic_has_rx_ring(bp, vnic, rxr_id)) 11045 return 0; 11046 11047 if (mru) { 11048 rc = bnxt_hwrm_vnic_set_rss_p5(bp, vnic, true); 11049 if (rc) { 11050 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %d\n", 11051 vnic->vnic_id, rc); 11052 return rc; 11053 } 11054 } 11055 vnic->mru = mru; 11056 bnxt_hwrm_vnic_update(bp, vnic, 11057 VNIC_UPDATE_REQ_ENABLES_MRU_VALID); 11058 11059 return 0; 11060 } 11061 11062 static int bnxt_set_rss_ctx_vnic_mru(struct bnxt *bp, u16 mru, int rxr_id) 11063 { 11064 struct ethtool_rxfh_context *ctx; 11065 unsigned long context; 11066 int rc; 11067 11068 xa_for_each(&bp->dev->ethtool->rss_ctx, context, ctx) { 11069 struct bnxt_rss_ctx *rss_ctx = ethtool_rxfh_context_priv(ctx); 11070 struct bnxt_vnic_info *vnic = &rss_ctx->vnic; 11071 11072 rc = bnxt_set_vnic_mru_p5(bp, vnic, mru, rxr_id); 11073 if (rc) 11074 return rc; 11075 } 11076 11077 return 0; 11078 } 11079 11080 static void bnxt_hwrm_realloc_rss_ctx_vnic(struct bnxt *bp) 11081 { 11082 bool set_tpa = !!(bp->flags & BNXT_FLAG_TPA); 11083 struct ethtool_rxfh_context *ctx; 11084 unsigned long context; 11085 11086 xa_for_each(&bp->dev->ethtool->rss_ctx, context, ctx) { 11087 struct bnxt_rss_ctx *rss_ctx = ethtool_rxfh_context_priv(ctx); 11088 struct bnxt_vnic_info *vnic = &rss_ctx->vnic; 11089 11090 if (bnxt_hwrm_vnic_alloc(bp, vnic, 0, bp->rx_nr_rings) || 11091 bnxt_hwrm_vnic_set_tpa(bp, vnic, set_tpa) || 11092 __bnxt_setup_vnic_p5(bp, vnic)) { 11093 netdev_err(bp->dev, "Failed to restore RSS ctx %d\n", 11094 rss_ctx->index); 11095 bnxt_del_one_rss_ctx(bp, rss_ctx, true); 11096 ethtool_rxfh_context_lost(bp->dev, rss_ctx->index); 11097 } 11098 } 11099 } 11100 11101 static void bnxt_clear_rss_ctxs(struct bnxt *bp) 11102 { 11103 struct ethtool_rxfh_context *ctx; 11104 unsigned long context; 11105 11106 xa_for_each(&bp->dev->ethtool->rss_ctx, context, ctx) { 11107 struct bnxt_rss_ctx *rss_ctx = ethtool_rxfh_context_priv(ctx); 11108 11109 bnxt_del_one_rss_ctx(bp, rss_ctx, false); 11110 } 11111 } 11112 11113 /* Allow PF, trusted VFs and VFs with default VLAN to be in promiscuous mode */ 11114 static bool bnxt_promisc_ok(struct bnxt *bp) 11115 { 11116 #ifdef CONFIG_BNXT_SRIOV 11117 if (BNXT_VF(bp) && !bp->vf.vlan && !bnxt_is_trusted_vf(bp, &bp->vf)) 11118 return false; 11119 #endif 11120 return true; 11121 } 11122 11123 static int bnxt_setup_nitroa0_vnic(struct bnxt *bp) 11124 { 11125 struct bnxt_vnic_info *vnic = &bp->vnic_info[1]; 11126 unsigned int rc = 0; 11127 11128 rc = bnxt_hwrm_vnic_alloc(bp, vnic, bp->rx_nr_rings - 1, 1); 11129 if (rc) { 11130 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n", 11131 rc); 11132 return rc; 11133 } 11134 11135 rc = bnxt_hwrm_vnic_cfg(bp, vnic); 11136 if (rc) { 11137 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n", 11138 rc); 11139 return rc; 11140 } 11141 return rc; 11142 } 11143 11144 static int bnxt_cfg_rx_mode(struct bnxt *, struct netdev_hw_addr_list *, bool); 11145 static bool bnxt_mc_list_updated(struct bnxt *, u32 *, 11146 const struct netdev_hw_addr_list *); 11147 11148 static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init) 11149 { 11150 struct bnxt_vnic_info *vnic = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 11151 int rc = 0; 11152 unsigned int rx_nr_rings = bp->rx_nr_rings; 11153 11154 if (irq_re_init) { 11155 rc = bnxt_hwrm_stat_ctx_alloc(bp); 11156 if (rc) { 11157 netdev_err(bp->dev, "hwrm stat ctx alloc failure rc: %x\n", 11158 rc); 11159 goto err_out; 11160 } 11161 } 11162 11163 rc = bnxt_hwrm_ring_alloc(bp); 11164 if (rc) { 11165 netdev_err(bp->dev, "hwrm ring alloc failure rc: %x\n", rc); 11166 goto err_out; 11167 } 11168 11169 rc = bnxt_hwrm_ring_grp_alloc(bp); 11170 if (rc) { 11171 netdev_err(bp->dev, "hwrm_ring_grp alloc failure: %x\n", rc); 11172 goto err_out; 11173 } 11174 11175 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 11176 rx_nr_rings--; 11177 11178 /* default vnic 0 */ 11179 rc = bnxt_hwrm_vnic_alloc(bp, vnic, 0, rx_nr_rings); 11180 if (rc) { 11181 netdev_err(bp->dev, "hwrm vnic alloc failure rc: %x\n", rc); 11182 goto err_out; 11183 } 11184 11185 if (BNXT_VF(bp)) 11186 bnxt_hwrm_func_qcfg(bp); 11187 11188 rc = bnxt_setup_vnic(bp, vnic); 11189 if (rc) 11190 goto err_out; 11191 if (bp->rss_cap & BNXT_RSS_CAP_RSS_HASH_TYPE_DELTA) 11192 bnxt_hwrm_update_rss_hash_cfg(bp); 11193 11194 if (bp->flags & BNXT_FLAG_RFS) { 11195 rc = bnxt_alloc_rfs_vnics(bp); 11196 if (rc) 11197 goto err_out; 11198 } 11199 11200 if (bp->flags & BNXT_FLAG_TPA) { 11201 rc = bnxt_set_tpa(bp, true); 11202 if (rc) 11203 goto err_out; 11204 } 11205 11206 if (BNXT_VF(bp)) 11207 bnxt_update_vf_mac(bp); 11208 11209 /* Filter for default vnic 0 */ 11210 rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr); 11211 if (rc) { 11212 if (BNXT_VF(bp) && rc == -ENODEV) 11213 netdev_err(bp->dev, "Cannot configure L2 filter while PF is unavailable\n"); 11214 else 11215 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc); 11216 goto err_out; 11217 } 11218 vnic->uc_filter_count = 1; 11219 11220 vnic->rx_mask = 0; 11221 if (test_bit(BNXT_STATE_HALF_OPEN, &bp->state)) 11222 goto skip_rx_mask; 11223 11224 if (bp->dev->flags & IFF_BROADCAST) 11225 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST; 11226 11227 if (bp->dev->flags & IFF_PROMISC) 11228 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 11229 11230 if (bp->dev->flags & IFF_ALLMULTI) { 11231 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 11232 vnic->mc_list_count = 0; 11233 } else if (bp->dev->flags & IFF_MULTICAST) { 11234 u32 mask = 0; 11235 11236 bnxt_mc_list_updated(bp, &mask, &bp->dev->mc); 11237 vnic->rx_mask |= mask; 11238 } 11239 11240 rc = bnxt_cfg_rx_mode(bp, &bp->dev->uc, true); 11241 if (rc == -EAGAIN) { 11242 netif_rx_mode_schedule_retry(bp->dev); 11243 rc = 0; 11244 } else if (rc) { 11245 goto err_out; 11246 } 11247 11248 skip_rx_mask: 11249 rc = bnxt_hwrm_set_coal(bp); 11250 if (rc) 11251 netdev_warn(bp->dev, "HWRM set coalescing failure rc: %x\n", 11252 rc); 11253 11254 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 11255 rc = bnxt_setup_nitroa0_vnic(bp); 11256 if (rc) 11257 netdev_err(bp->dev, "Special vnic setup failure for NS2 A0 rc: %x\n", 11258 rc); 11259 } 11260 11261 if (BNXT_VF(bp)) { 11262 bnxt_hwrm_func_qcfg(bp); 11263 netdev_update_features(bp->dev); 11264 } 11265 11266 return 0; 11267 11268 err_out: 11269 bnxt_hwrm_resource_free(bp, 0, true); 11270 11271 return rc; 11272 } 11273 11274 static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init) 11275 { 11276 bnxt_hwrm_resource_free(bp, 1, irq_re_init); 11277 return 0; 11278 } 11279 11280 static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init) 11281 { 11282 bnxt_init_cp_rings(bp); 11283 bnxt_init_rx_rings(bp); 11284 bnxt_init_tx_rings(bp); 11285 bnxt_init_ring_grps(bp, irq_re_init); 11286 bnxt_init_vnics(bp); 11287 11288 return bnxt_init_chip(bp, irq_re_init); 11289 } 11290 11291 static int bnxt_set_real_num_queues(struct bnxt *bp) 11292 { 11293 int rc; 11294 struct net_device *dev = bp->dev; 11295 11296 rc = netif_set_real_num_tx_queues(dev, bp->tx_nr_rings - 11297 bp->tx_nr_rings_xdp); 11298 if (rc) 11299 return rc; 11300 11301 rc = netif_set_real_num_rx_queues(dev, bp->rx_nr_rings); 11302 if (rc) 11303 return rc; 11304 11305 #ifdef CONFIG_RFS_ACCEL 11306 if (bp->flags & BNXT_FLAG_RFS) 11307 dev->rx_cpu_rmap = alloc_irq_cpu_rmap(bp->rx_nr_rings); 11308 #endif 11309 11310 return rc; 11311 } 11312 11313 static int __bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, 11314 bool shared) 11315 { 11316 int _rx = *rx, _tx = *tx; 11317 11318 if (shared) { 11319 *rx = min_t(int, _rx, max); 11320 *tx = min_t(int, _tx, max); 11321 } else { 11322 if (max < 2) 11323 return -ENOMEM; 11324 11325 while (_rx + _tx > max) { 11326 if (_rx > _tx && _rx > 1) 11327 _rx--; 11328 else if (_tx > 1) 11329 _tx--; 11330 } 11331 *rx = _rx; 11332 *tx = _tx; 11333 } 11334 return 0; 11335 } 11336 11337 static int __bnxt_num_tx_to_cp(struct bnxt *bp, int tx, int tx_sets, int tx_xdp) 11338 { 11339 return (tx - tx_xdp) / tx_sets + tx_xdp; 11340 } 11341 11342 int bnxt_num_tx_to_cp(struct bnxt *bp, int tx) 11343 { 11344 int tcs = bp->num_tc; 11345 11346 if (!tcs) 11347 tcs = 1; 11348 return __bnxt_num_tx_to_cp(bp, tx, tcs, bp->tx_nr_rings_xdp); 11349 } 11350 11351 static int bnxt_num_cp_to_tx(struct bnxt *bp, int tx_cp) 11352 { 11353 int tcs = bp->num_tc; 11354 11355 return (tx_cp - bp->tx_nr_rings_xdp) * tcs + 11356 bp->tx_nr_rings_xdp; 11357 } 11358 11359 static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, 11360 bool sh) 11361 { 11362 int tx_cp = bnxt_num_tx_to_cp(bp, *tx); 11363 11364 if (tx_cp != *tx) { 11365 int tx_saved = tx_cp, rc; 11366 11367 rc = __bnxt_trim_rings(bp, rx, &tx_cp, max, sh); 11368 if (rc) 11369 return rc; 11370 if (tx_cp != tx_saved) 11371 *tx = bnxt_num_cp_to_tx(bp, tx_cp); 11372 return 0; 11373 } 11374 return __bnxt_trim_rings(bp, rx, tx, max, sh); 11375 } 11376 11377 static void bnxt_setup_msix(struct bnxt *bp) 11378 { 11379 const int len = sizeof(bp->irq_tbl[0].name); 11380 struct net_device *dev = bp->dev; 11381 int tcs, i; 11382 11383 tcs = bp->num_tc; 11384 if (tcs) { 11385 int i, off, count; 11386 11387 for (i = 0; i < tcs; i++) { 11388 count = bp->tx_nr_rings_per_tc; 11389 off = BNXT_TC_TO_RING_BASE(bp, i); 11390 netdev_set_tc_queue(dev, i, count, off); 11391 } 11392 } 11393 11394 for (i = 0; i < bp->cp_nr_rings; i++) { 11395 int map_idx = bnxt_cp_num_to_irq_num(bp, i); 11396 char *attr; 11397 11398 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 11399 attr = "TxRx"; 11400 else if (i < bp->rx_nr_rings) 11401 attr = "rx"; 11402 else 11403 attr = "tx"; 11404 11405 snprintf(bp->irq_tbl[map_idx].name, len, "%s-%s-%d", dev->name, 11406 attr, i); 11407 bp->irq_tbl[map_idx].handler = bnxt_msix; 11408 } 11409 } 11410 11411 static int bnxt_init_int_mode(struct bnxt *bp); 11412 11413 static int bnxt_change_msix(struct bnxt *bp, int total) 11414 { 11415 struct msi_map map; 11416 int i; 11417 11418 /* add MSIX to the end if needed */ 11419 for (i = bp->total_irqs; i < total; i++) { 11420 map = pci_msix_alloc_irq_at(bp->pdev, i, NULL); 11421 if (map.index < 0) 11422 return bp->total_irqs; 11423 bp->irq_tbl[i].vector = map.virq; 11424 bp->total_irqs++; 11425 } 11426 11427 /* trim MSIX from the end if needed */ 11428 for (i = bp->total_irqs; i > total; i--) { 11429 map.index = i - 1; 11430 map.virq = bp->irq_tbl[i - 1].vector; 11431 pci_msix_free_irq(bp->pdev, map); 11432 bp->total_irqs--; 11433 } 11434 return bp->total_irqs; 11435 } 11436 11437 static int bnxt_setup_int_mode(struct bnxt *bp) 11438 { 11439 int rc; 11440 11441 if (!bp->irq_tbl) { 11442 rc = bnxt_init_int_mode(bp); 11443 if (rc || !bp->irq_tbl) 11444 return rc ?: -ENODEV; 11445 } 11446 11447 bnxt_setup_msix(bp); 11448 11449 rc = bnxt_set_real_num_queues(bp); 11450 return rc; 11451 } 11452 11453 static unsigned int bnxt_get_max_func_rss_ctxs(struct bnxt *bp) 11454 { 11455 return bp->hw_resc.max_rsscos_ctxs; 11456 } 11457 11458 static unsigned int bnxt_get_max_func_vnics(struct bnxt *bp) 11459 { 11460 return bp->hw_resc.max_vnics; 11461 } 11462 11463 unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp) 11464 { 11465 return bp->hw_resc.max_stat_ctxs; 11466 } 11467 11468 unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp) 11469 { 11470 return bp->hw_resc.max_cp_rings; 11471 } 11472 11473 static unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp) 11474 { 11475 unsigned int cp = bp->hw_resc.max_cp_rings; 11476 11477 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 11478 cp -= bnxt_get_ulp_msix_num(bp); 11479 11480 return cp; 11481 } 11482 11483 static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp) 11484 { 11485 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 11486 11487 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 11488 return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_nqs); 11489 11490 return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_cp_rings); 11491 } 11492 11493 static void bnxt_set_max_func_irqs(struct bnxt *bp, unsigned int max_irqs) 11494 { 11495 bp->hw_resc.max_irqs = max_irqs; 11496 } 11497 11498 unsigned int bnxt_get_avail_cp_rings_for_en(struct bnxt *bp) 11499 { 11500 unsigned int cp; 11501 11502 cp = bnxt_get_max_func_cp_rings_for_en(bp); 11503 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 11504 return cp - bp->rx_nr_rings - bp->tx_nr_rings; 11505 else 11506 return cp - bp->cp_nr_rings; 11507 } 11508 11509 unsigned int bnxt_get_avail_stat_ctxs_for_en(struct bnxt *bp) 11510 { 11511 return bnxt_get_max_func_stat_ctxs(bp) - bnxt_get_func_stat_ctxs(bp); 11512 } 11513 11514 static int bnxt_get_avail_msix(struct bnxt *bp, int num) 11515 { 11516 int max_irq = bnxt_get_max_func_irqs(bp); 11517 int total_req = bp->cp_nr_rings + num; 11518 11519 if (max_irq < total_req) { 11520 num = max_irq - bp->cp_nr_rings; 11521 if (num <= 0) 11522 return 0; 11523 } 11524 return num; 11525 } 11526 11527 static int bnxt_get_num_msix(struct bnxt *bp) 11528 { 11529 if (!BNXT_NEW_RM(bp)) 11530 return bnxt_get_max_func_irqs(bp); 11531 11532 return bnxt_nq_rings_in_use(bp); 11533 } 11534 11535 static int bnxt_init_int_mode(struct bnxt *bp) 11536 { 11537 int i, total_vecs, max, rc = 0, min = 1, ulp_msix, tx_cp, tbl_size; 11538 11539 total_vecs = bnxt_get_num_msix(bp); 11540 max = bnxt_get_max_func_irqs(bp); 11541 if (total_vecs > max) 11542 total_vecs = max; 11543 11544 if (!total_vecs) 11545 return 0; 11546 11547 if (!(bp->flags & BNXT_FLAG_SHARED_RINGS)) 11548 min = 2; 11549 11550 total_vecs = pci_alloc_irq_vectors(bp->pdev, min, total_vecs, 11551 PCI_IRQ_MSIX); 11552 ulp_msix = bnxt_get_ulp_msix_num(bp); 11553 if (total_vecs < 0 || total_vecs < ulp_msix) { 11554 rc = -ENODEV; 11555 goto msix_setup_exit; 11556 } 11557 11558 tbl_size = total_vecs; 11559 if (pci_msix_can_alloc_dyn(bp->pdev)) 11560 tbl_size = max; 11561 bp->irq_tbl = kzalloc_objs(*bp->irq_tbl, tbl_size); 11562 if (bp->irq_tbl) { 11563 for (i = 0; i < total_vecs; i++) 11564 bp->irq_tbl[i].vector = pci_irq_vector(bp->pdev, i); 11565 11566 bp->total_irqs = total_vecs; 11567 /* Trim rings based upon num of vectors allocated */ 11568 rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings, 11569 total_vecs - ulp_msix, min == 1); 11570 if (rc) 11571 goto msix_setup_exit; 11572 11573 tx_cp = bnxt_num_tx_to_cp(bp, bp->tx_nr_rings); 11574 bp->cp_nr_rings = (min == 1) ? 11575 max_t(int, tx_cp, bp->rx_nr_rings) : 11576 tx_cp + bp->rx_nr_rings; 11577 11578 } else { 11579 rc = -ENOMEM; 11580 goto msix_setup_exit; 11581 } 11582 return 0; 11583 11584 msix_setup_exit: 11585 netdev_err(bp->dev, "bnxt_init_int_mode err: %x\n", rc); 11586 kfree(bp->irq_tbl); 11587 bp->irq_tbl = NULL; 11588 pci_free_irq_vectors(bp->pdev); 11589 return rc; 11590 } 11591 11592 static void bnxt_clear_int_mode(struct bnxt *bp) 11593 { 11594 pci_free_irq_vectors(bp->pdev); 11595 11596 kfree(bp->irq_tbl); 11597 bp->irq_tbl = NULL; 11598 } 11599 11600 int bnxt_reserve_rings(struct bnxt *bp, bool irq_re_init) 11601 { 11602 struct bnxt_en_dev *edev = bp->edev[BNXT_AUXDEV_RDMA]; 11603 bool irq_cleared = false; 11604 bool irq_change = false; 11605 int tcs = bp->num_tc; 11606 int irqs_required; 11607 int rc; 11608 11609 if (!bnxt_need_reserve_rings(bp)) 11610 return 0; 11611 11612 if (BNXT_NEW_RM(bp) && !bnxt_ulp_registered(edev)) { 11613 int ulp_msix = bnxt_get_avail_msix(bp, bp->ulp_num_msix_want); 11614 11615 if (ulp_msix > bp->ulp_num_msix_want) 11616 ulp_msix = bp->ulp_num_msix_want; 11617 irqs_required = ulp_msix + bp->cp_nr_rings; 11618 } else { 11619 irqs_required = bnxt_get_num_msix(bp); 11620 } 11621 11622 if (irq_re_init && BNXT_NEW_RM(bp) && irqs_required != bp->total_irqs) { 11623 irq_change = true; 11624 if (!pci_msix_can_alloc_dyn(bp->pdev)) { 11625 bnxt_ulp_irq_stop(bp); 11626 bnxt_clear_int_mode(bp); 11627 irq_cleared = true; 11628 } 11629 } 11630 rc = __bnxt_reserve_rings(bp); 11631 if (irq_cleared) { 11632 if (!rc) 11633 rc = bnxt_init_int_mode(bp); 11634 bnxt_ulp_irq_restart(bp, rc); 11635 } else if (irq_change && !rc) { 11636 if (bnxt_change_msix(bp, irqs_required) != irqs_required) 11637 rc = -ENOSPC; 11638 } 11639 if (rc) { 11640 netdev_err(bp->dev, "ring reservation/IRQ init failure rc: %d\n", rc); 11641 return rc; 11642 } 11643 if (tcs && (bp->tx_nr_rings_per_tc * tcs != 11644 bp->tx_nr_rings - bp->tx_nr_rings_xdp)) { 11645 netdev_err(bp->dev, "tx ring reservation failure\n"); 11646 netdev_reset_tc(bp->dev); 11647 bp->num_tc = 0; 11648 if (bp->tx_nr_rings_xdp) 11649 bp->tx_nr_rings_per_tc = bp->tx_nr_rings_xdp; 11650 else 11651 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 11652 return -ENOMEM; 11653 } 11654 return 0; 11655 } 11656 11657 static void bnxt_tx_queue_stop(struct bnxt *bp, int idx) 11658 { 11659 struct bnxt_tx_ring_info *txr; 11660 struct netdev_queue *txq; 11661 struct bnxt_napi *bnapi; 11662 int i; 11663 11664 bnapi = bp->bnapi[idx]; 11665 bnxt_for_each_napi_tx(i, bnapi, txr) { 11666 WRITE_ONCE(txr->dev_state, BNXT_DEV_STATE_CLOSING); 11667 synchronize_net(); 11668 11669 if (!(bnapi->flags & BNXT_NAPI_FLAG_XDP)) { 11670 txq = netdev_get_tx_queue(bp->dev, txr->txq_index); 11671 if (txq) { 11672 __netif_tx_lock_bh(txq); 11673 netif_tx_stop_queue(txq); 11674 __netif_tx_unlock_bh(txq); 11675 } 11676 } 11677 11678 if (!bp->tph_mode) 11679 continue; 11680 11681 bnxt_hwrm_tx_ring_free(bp, txr, true); 11682 bnxt_hwrm_cp_ring_free(bp, txr->tx_cpr); 11683 bnxt_free_one_tx_ring_skbs(bp, txr, txr->txq_index); 11684 bnxt_clear_one_cp_ring(bp, txr->tx_cpr); 11685 } 11686 } 11687 11688 static int bnxt_tx_queue_start(struct bnxt *bp, int idx) 11689 { 11690 struct bnxt_tx_ring_info *txr; 11691 struct netdev_queue *txq; 11692 struct bnxt_napi *bnapi; 11693 int rc, i; 11694 11695 bnapi = bp->bnapi[idx]; 11696 /* All rings have been reserved and previously allocated. 11697 * Reallocating with the same parameters should never fail. 11698 */ 11699 bnxt_for_each_napi_tx(i, bnapi, txr) { 11700 if (!bp->tph_mode) 11701 goto start_tx; 11702 11703 rc = bnxt_hwrm_cp_ring_alloc_p5(bp, txr->tx_cpr); 11704 if (rc) 11705 return rc; 11706 11707 rc = bnxt_hwrm_tx_ring_alloc(bp, txr, false); 11708 if (rc) 11709 return rc; 11710 11711 txr->tx_prod = 0; 11712 txr->tx_cons = 0; 11713 txr->tx_hw_cons = 0; 11714 start_tx: 11715 WRITE_ONCE(txr->dev_state, 0); 11716 synchronize_net(); 11717 11718 if (bnapi->flags & BNXT_NAPI_FLAG_XDP) 11719 continue; 11720 11721 txq = netdev_get_tx_queue(bp->dev, txr->txq_index); 11722 if (txq) 11723 netif_tx_start_queue(txq); 11724 } 11725 11726 return 0; 11727 } 11728 11729 static void bnxt_irq_affinity_notify(struct irq_affinity_notify *notify, 11730 const cpumask_t *mask) 11731 { 11732 struct bnxt_irq *irq; 11733 u16 tag; 11734 int err; 11735 11736 irq = container_of(notify, struct bnxt_irq, affinity_notify); 11737 11738 if (!irq->bp->tph_mode) 11739 return; 11740 11741 cpumask_copy(irq->cpu_mask, mask); 11742 11743 if (irq->ring_nr >= irq->bp->rx_nr_rings) 11744 return; 11745 11746 if (pcie_tph_get_cpu_st(irq->bp->pdev, TPH_MEM_TYPE_VM, 11747 cpumask_first(irq->cpu_mask), &tag)) 11748 return; 11749 11750 if (pcie_tph_set_st_entry(irq->bp->pdev, irq->msix_nr, tag)) 11751 return; 11752 11753 netdev_lock(irq->bp->dev); 11754 if (netif_running(irq->bp->dev)) { 11755 err = netdev_rx_queue_restart(irq->bp->dev, irq->ring_nr); 11756 if (err) 11757 netdev_err(irq->bp->dev, 11758 "RX queue restart failed: err=%d\n", err); 11759 } 11760 netdev_unlock(irq->bp->dev); 11761 } 11762 11763 static void bnxt_irq_affinity_release(struct kref *ref) 11764 { 11765 struct irq_affinity_notify *notify = 11766 container_of(ref, struct irq_affinity_notify, kref); 11767 struct bnxt_irq *irq; 11768 11769 irq = container_of(notify, struct bnxt_irq, affinity_notify); 11770 11771 if (!irq->bp->tph_mode) 11772 return; 11773 11774 if (pcie_tph_set_st_entry(irq->bp->pdev, irq->msix_nr, 0)) { 11775 netdev_err(irq->bp->dev, 11776 "Setting ST=0 for MSIX entry %d failed\n", 11777 irq->msix_nr); 11778 return; 11779 } 11780 } 11781 11782 static void bnxt_release_irq_notifier(struct bnxt_irq *irq) 11783 { 11784 irq_set_affinity_notifier(irq->vector, NULL); 11785 } 11786 11787 static void bnxt_register_irq_notifier(struct bnxt *bp, struct bnxt_irq *irq) 11788 { 11789 struct irq_affinity_notify *notify; 11790 11791 irq->bp = bp; 11792 11793 /* Nothing to do if TPH is not enabled */ 11794 if (!bp->tph_mode) 11795 return; 11796 11797 /* Register IRQ affinity notifier */ 11798 notify = &irq->affinity_notify; 11799 notify->irq = irq->vector; 11800 notify->notify = bnxt_irq_affinity_notify; 11801 notify->release = bnxt_irq_affinity_release; 11802 11803 irq_set_affinity_notifier(irq->vector, notify); 11804 } 11805 11806 static void bnxt_free_irq(struct bnxt *bp) 11807 { 11808 struct bnxt_irq *irq; 11809 int i; 11810 11811 #ifdef CONFIG_RFS_ACCEL 11812 free_irq_cpu_rmap(bp->dev->rx_cpu_rmap); 11813 bp->dev->rx_cpu_rmap = NULL; 11814 #endif 11815 if (!bp->irq_tbl || !bp->bnapi) 11816 return; 11817 11818 for (i = 0; i < bp->cp_nr_rings; i++) { 11819 int map_idx = bnxt_cp_num_to_irq_num(bp, i); 11820 11821 irq = &bp->irq_tbl[map_idx]; 11822 if (irq->requested) { 11823 if (irq->have_cpumask) { 11824 irq_update_affinity_hint(irq->vector, NULL); 11825 free_cpumask_var(irq->cpu_mask); 11826 irq->have_cpumask = 0; 11827 } 11828 11829 bnxt_release_irq_notifier(irq); 11830 11831 free_irq(irq->vector, bp->bnapi[i]); 11832 } 11833 11834 irq->requested = 0; 11835 } 11836 11837 /* Disable TPH support */ 11838 pcie_disable_tph(bp->pdev); 11839 bp->tph_mode = 0; 11840 } 11841 11842 static int bnxt_request_irq(struct bnxt *bp) 11843 { 11844 struct cpu_rmap *rmap = NULL; 11845 int i, j, rc = 0; 11846 unsigned long flags = 0; 11847 11848 rc = bnxt_setup_int_mode(bp); 11849 if (rc) { 11850 netdev_err(bp->dev, "bnxt_setup_int_mode err: %x\n", 11851 rc); 11852 return rc; 11853 } 11854 #ifdef CONFIG_RFS_ACCEL 11855 rmap = bp->dev->rx_cpu_rmap; 11856 #endif 11857 11858 /* Enable TPH support as part of IRQ request */ 11859 rc = pcie_enable_tph(bp->pdev, PCI_TPH_ST_IV_MODE); 11860 if (!rc) 11861 bp->tph_mode = PCI_TPH_ST_IV_MODE; 11862 11863 for (i = 0, j = 0; i < bp->cp_nr_rings; i++) { 11864 int map_idx = bnxt_cp_num_to_irq_num(bp, i); 11865 struct bnxt_irq *irq = &bp->irq_tbl[map_idx]; 11866 11867 if (IS_ENABLED(CONFIG_RFS_ACCEL) && 11868 rmap && bp->bnapi[i]->rx_ring) { 11869 rc = irq_cpu_rmap_add(rmap, irq->vector); 11870 if (rc) 11871 netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n", 11872 j); 11873 j++; 11874 } 11875 11876 rc = request_irq(irq->vector, irq->handler, flags, irq->name, 11877 bp->bnapi[i]); 11878 if (rc) 11879 break; 11880 11881 netif_napi_set_irq_locked(&bp->bnapi[i]->napi, irq->vector); 11882 irq->requested = 1; 11883 11884 if (zalloc_cpumask_var(&irq->cpu_mask, GFP_KERNEL)) { 11885 int numa_node = dev_to_node(&bp->pdev->dev); 11886 u16 tag; 11887 11888 irq->have_cpumask = 1; 11889 irq->msix_nr = map_idx; 11890 irq->ring_nr = i; 11891 cpumask_set_cpu(cpumask_local_spread(i, numa_node), 11892 irq->cpu_mask); 11893 rc = irq_update_affinity_hint(irq->vector, irq->cpu_mask); 11894 if (rc) { 11895 netdev_warn(bp->dev, 11896 "Update affinity hint failed, IRQ = %d\n", 11897 irq->vector); 11898 break; 11899 } 11900 11901 bnxt_register_irq_notifier(bp, irq); 11902 11903 /* Init ST table entry */ 11904 if (pcie_tph_get_cpu_st(irq->bp->pdev, TPH_MEM_TYPE_VM, 11905 cpumask_first(irq->cpu_mask), 11906 &tag)) 11907 continue; 11908 11909 pcie_tph_set_st_entry(irq->bp->pdev, irq->msix_nr, tag); 11910 } 11911 } 11912 return rc; 11913 } 11914 11915 static void bnxt_del_napi(struct bnxt *bp) 11916 { 11917 int i; 11918 11919 if (!bp->bnapi) 11920 return; 11921 11922 for (i = 0; i < bp->rx_nr_rings; i++) 11923 netif_queue_set_napi(bp->dev, i, NETDEV_QUEUE_TYPE_RX, NULL); 11924 for (i = 0; i < bp->tx_nr_rings - bp->tx_nr_rings_xdp; i++) 11925 netif_queue_set_napi(bp->dev, i, NETDEV_QUEUE_TYPE_TX, NULL); 11926 11927 for (i = 0; i < bp->cp_nr_rings; i++) { 11928 struct bnxt_napi *bnapi = bp->bnapi[i]; 11929 11930 __netif_napi_del_locked(&bnapi->napi); 11931 } 11932 /* We called __netif_napi_del_locked(), we need 11933 * to respect an RCU grace period before freeing napi structures. 11934 */ 11935 synchronize_net(); 11936 } 11937 11938 static void bnxt_init_napi(struct bnxt *bp) 11939 { 11940 int (*poll_fn)(struct napi_struct *, int) = bnxt_poll; 11941 unsigned int cp_nr_rings = bp->cp_nr_rings; 11942 struct bnxt_napi *bnapi; 11943 int i; 11944 11945 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 11946 poll_fn = bnxt_poll_p5; 11947 else if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 11948 cp_nr_rings--; 11949 11950 set_bit(BNXT_STATE_NAPI_DISABLED, &bp->state); 11951 11952 for (i = 0; i < cp_nr_rings; i++) { 11953 bnapi = bp->bnapi[i]; 11954 netif_napi_add_config_locked(bp->dev, &bnapi->napi, poll_fn, 11955 bnapi->index); 11956 } 11957 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 11958 bnapi = bp->bnapi[cp_nr_rings]; 11959 netif_napi_add_locked(bp->dev, &bnapi->napi, bnxt_poll_nitroa0); 11960 } 11961 } 11962 11963 static void bnxt_disable_napi(struct bnxt *bp) 11964 { 11965 int i; 11966 11967 if (!bp->bnapi || 11968 test_and_set_bit(BNXT_STATE_NAPI_DISABLED, &bp->state)) 11969 return; 11970 11971 for (i = 0; i < bp->cp_nr_rings; i++) { 11972 struct bnxt_napi *bnapi = bp->bnapi[i]; 11973 struct bnxt_cp_ring_info *cpr; 11974 11975 cpr = &bnapi->cp_ring; 11976 if (bnapi->tx_fault) 11977 cpr->sw_stats->tx.tx_resets++; 11978 if (bnapi->in_reset) 11979 cpr->sw_stats->rx.rx_resets++; 11980 napi_disable_locked(&bnapi->napi); 11981 } 11982 } 11983 11984 static void bnxt_enable_napi(struct bnxt *bp) 11985 { 11986 int i; 11987 11988 clear_bit(BNXT_STATE_NAPI_DISABLED, &bp->state); 11989 for (i = 0; i < bp->cp_nr_rings; i++) { 11990 struct bnxt_napi *bnapi = bp->bnapi[i]; 11991 struct bnxt_cp_ring_info *cpr; 11992 11993 bnapi->tx_fault = 0; 11994 11995 cpr = &bnapi->cp_ring; 11996 bnapi->in_reset = false; 11997 11998 if (bnapi->rx_ring) { 11999 INIT_WORK(&cpr->dim.work, bnxt_dim_work); 12000 cpr->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; 12001 } 12002 napi_enable_locked(&bnapi->napi); 12003 } 12004 } 12005 12006 void bnxt_tx_disable(struct bnxt *bp) 12007 { 12008 int i; 12009 struct bnxt_tx_ring_info *txr; 12010 12011 if (bp->tx_ring) { 12012 for (i = 0; i < bp->tx_nr_rings; i++) { 12013 txr = &bp->tx_ring[i]; 12014 WRITE_ONCE(txr->dev_state, BNXT_DEV_STATE_CLOSING); 12015 } 12016 } 12017 /* Make sure napi polls see @dev_state change */ 12018 synchronize_net(); 12019 /* Drop carrier first to prevent TX timeout */ 12020 netif_carrier_off(bp->dev); 12021 /* Stop all TX queues */ 12022 netif_tx_disable(bp->dev); 12023 } 12024 12025 void bnxt_tx_enable(struct bnxt *bp) 12026 { 12027 int i; 12028 struct bnxt_tx_ring_info *txr; 12029 12030 for (i = 0; i < bp->tx_nr_rings; i++) { 12031 txr = &bp->tx_ring[i]; 12032 WRITE_ONCE(txr->dev_state, 0); 12033 } 12034 /* Make sure napi polls see @dev_state change */ 12035 synchronize_net(); 12036 netif_tx_wake_all_queues(bp->dev); 12037 if (BNXT_LINK_IS_UP(bp)) 12038 netif_carrier_on(bp->dev); 12039 } 12040 12041 static char *bnxt_report_fec(struct bnxt_link_info *link_info) 12042 { 12043 u8 active_fec = link_info->active_fec_sig_mode & 12044 PORT_PHY_QCFG_RESP_ACTIVE_FEC_MASK; 12045 12046 switch (active_fec) { 12047 default: 12048 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_NONE_ACTIVE: 12049 return "None"; 12050 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE74_ACTIVE: 12051 return "Clause 74 BaseR"; 12052 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE91_ACTIVE: 12053 return "Clause 91 RS(528,514)"; 12054 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_1XN_ACTIVE: 12055 return "Clause 91 RS544_1XN"; 12056 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_IEEE_ACTIVE: 12057 return "Clause 91 RS(544,514)"; 12058 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_1XN_ACTIVE: 12059 return "Clause 91 RS272_1XN"; 12060 case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_IEEE_ACTIVE: 12061 return "Clause 91 RS(272,257)"; 12062 } 12063 } 12064 12065 static char *bnxt_link_down_reason(struct bnxt_link_info *link_info) 12066 { 12067 u8 reason = link_info->link_down_reason; 12068 12069 /* Multiple bits can be set, we report 1 bit only in order of 12070 * priority. 12071 */ 12072 if (reason & PORT_PHY_QCFG_RESP_LINK_DOWN_REASON_RF) 12073 return "(Remote fault)"; 12074 if (reason & PORT_PHY_QCFG_RESP_LINK_DOWN_REASON_OTP_SPEED_VIOLATION) 12075 return "(OTP Speed limit violation)"; 12076 if (reason & PORT_PHY_QCFG_RESP_LINK_DOWN_REASON_CABLE_REMOVED) 12077 return "(Cable removed)"; 12078 if (reason & PORT_PHY_QCFG_RESP_LINK_DOWN_REASON_MODULE_FAULT) 12079 return "(Module fault)"; 12080 if (reason & PORT_PHY_QCFG_RESP_LINK_DOWN_REASON_BMC_REQUEST) 12081 return "(BMC request down)"; 12082 return ""; 12083 } 12084 12085 void bnxt_report_link(struct bnxt *bp) 12086 { 12087 if (BNXT_LINK_IS_UP(bp)) { 12088 const char *signal = ""; 12089 const char *flow_ctrl; 12090 const char *duplex; 12091 u32 speed; 12092 u16 fec; 12093 12094 netif_carrier_on(bp->dev); 12095 speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed); 12096 if (speed == SPEED_UNKNOWN) { 12097 netdev_info(bp->dev, "NIC Link is Up, speed unknown\n"); 12098 return; 12099 } 12100 if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL) 12101 duplex = "full"; 12102 else 12103 duplex = "half"; 12104 if (bp->link_info.pause == BNXT_LINK_PAUSE_BOTH) 12105 flow_ctrl = "ON - receive & transmit"; 12106 else if (bp->link_info.pause == BNXT_LINK_PAUSE_TX) 12107 flow_ctrl = "ON - transmit"; 12108 else if (bp->link_info.pause == BNXT_LINK_PAUSE_RX) 12109 flow_ctrl = "ON - receive"; 12110 else 12111 flow_ctrl = "none"; 12112 if (bp->link_info.phy_qcfg_resp.option_flags & 12113 PORT_PHY_QCFG_RESP_OPTION_FLAGS_SIGNAL_MODE_KNOWN) { 12114 u8 sig_mode = bp->link_info.active_fec_sig_mode & 12115 PORT_PHY_QCFG_RESP_SIGNAL_MODE_MASK; 12116 switch (sig_mode) { 12117 case PORT_PHY_QCFG_RESP_SIGNAL_MODE_NRZ: 12118 signal = "(NRZ) "; 12119 break; 12120 case PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4: 12121 signal = "(PAM4 56Gbps) "; 12122 break; 12123 case PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4_112: 12124 signal = "(PAM4 112Gbps) "; 12125 break; 12126 default: 12127 break; 12128 } 12129 } 12130 netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s%s duplex, Flow control: %s\n", 12131 speed, signal, duplex, flow_ctrl); 12132 if (bp->phy_flags & BNXT_PHY_FL_EEE_CAP) 12133 netdev_info(bp->dev, "EEE is %s\n", 12134 bp->eee.eee_active ? "active" : 12135 "not active"); 12136 fec = bp->link_info.fec_cfg; 12137 if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED)) 12138 netdev_info(bp->dev, "FEC autoneg %s encoding: %s\n", 12139 (fec & BNXT_FEC_AUTONEG) ? "on" : "off", 12140 bnxt_report_fec(&bp->link_info)); 12141 } else { 12142 char *str = bnxt_link_down_reason(&bp->link_info); 12143 12144 netif_carrier_off(bp->dev); 12145 netdev_err(bp->dev, "NIC Link is Down %s\n", str); 12146 } 12147 } 12148 12149 static bool bnxt_phy_qcaps_no_speed(struct hwrm_port_phy_qcaps_output *resp) 12150 { 12151 if (!resp->supported_speeds_auto_mode && 12152 !resp->supported_speeds_force_mode && 12153 !resp->supported_pam4_speeds_auto_mode && 12154 !resp->supported_pam4_speeds_force_mode && 12155 !resp->supported_speeds2_auto_mode && 12156 !resp->supported_speeds2_force_mode) 12157 return true; 12158 return false; 12159 } 12160 12161 static int bnxt_hwrm_phy_qcaps(struct bnxt *bp) 12162 { 12163 struct bnxt_link_info *link_info = &bp->link_info; 12164 struct hwrm_port_phy_qcaps_output *resp; 12165 struct hwrm_port_phy_qcaps_input *req; 12166 int rc = 0; 12167 12168 if (bp->hwrm_spec_code < 0x10201) 12169 return 0; 12170 12171 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCAPS); 12172 if (rc) 12173 return rc; 12174 12175 resp = hwrm_req_hold(bp, req); 12176 rc = hwrm_req_send(bp, req); 12177 if (rc) 12178 goto hwrm_phy_qcaps_exit; 12179 12180 bp->phy_flags = resp->flags | (le16_to_cpu(resp->flags2) << 8); 12181 if (resp->flags & PORT_PHY_QCAPS_RESP_FLAGS_EEE_SUPPORTED) { 12182 struct ethtool_keee *eee = &bp->eee; 12183 u16 fw_speeds = le16_to_cpu(resp->supported_speeds_eee_mode); 12184 12185 _bnxt_fw_to_linkmode(eee->supported, fw_speeds); 12186 bp->lpi_tmr_lo = le32_to_cpu(resp->tx_lpi_timer_low) & 12187 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_LOW_MASK; 12188 bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) & 12189 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK; 12190 } 12191 12192 if (bp->hwrm_spec_code >= 0x10a01) { 12193 if (bnxt_phy_qcaps_no_speed(resp)) { 12194 link_info->phy_state = BNXT_PHY_STATE_DISABLED; 12195 netdev_warn(bp->dev, "Ethernet link disabled\n"); 12196 } else if (link_info->phy_state == BNXT_PHY_STATE_DISABLED) { 12197 link_info->phy_state = BNXT_PHY_STATE_ENABLED; 12198 netdev_info(bp->dev, "Ethernet link enabled\n"); 12199 /* Phy re-enabled, reprobe the speeds */ 12200 link_info->support_auto_speeds = 0; 12201 link_info->support_pam4_auto_speeds = 0; 12202 link_info->support_auto_speeds2 = 0; 12203 } 12204 } 12205 if (resp->supported_speeds_auto_mode) 12206 link_info->support_auto_speeds = 12207 le16_to_cpu(resp->supported_speeds_auto_mode); 12208 if (resp->supported_pam4_speeds_auto_mode) 12209 link_info->support_pam4_auto_speeds = 12210 le16_to_cpu(resp->supported_pam4_speeds_auto_mode); 12211 if (resp->supported_speeds2_auto_mode) 12212 link_info->support_auto_speeds2 = 12213 le16_to_cpu(resp->supported_speeds2_auto_mode); 12214 12215 bp->port_count = resp->port_cnt; 12216 12217 hwrm_phy_qcaps_exit: 12218 hwrm_req_drop(bp, req); 12219 return rc; 12220 } 12221 12222 static void bnxt_hwrm_mac_qcaps(struct bnxt *bp) 12223 { 12224 struct hwrm_port_mac_qcaps_output *resp; 12225 struct hwrm_port_mac_qcaps_input *req; 12226 int rc; 12227 12228 if (bp->hwrm_spec_code < 0x10a03) 12229 return; 12230 12231 rc = hwrm_req_init(bp, req, HWRM_PORT_MAC_QCAPS); 12232 if (rc) 12233 return; 12234 12235 resp = hwrm_req_hold(bp, req); 12236 rc = hwrm_req_send_silent(bp, req); 12237 if (!rc) 12238 bp->mac_flags = resp->flags; 12239 hwrm_req_drop(bp, req); 12240 } 12241 12242 static bool bnxt_support_dropped(u16 advertising, u16 supported) 12243 { 12244 u16 diff = advertising ^ supported; 12245 12246 return ((supported | diff) != supported); 12247 } 12248 12249 static bool bnxt_support_speed_dropped(struct bnxt_link_info *link_info) 12250 { 12251 struct bnxt *bp = container_of(link_info, struct bnxt, link_info); 12252 12253 /* Check if any advertised speeds are no longer supported. The caller 12254 * holds the link_lock mutex, so we can modify link_info settings. 12255 */ 12256 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) { 12257 if (bnxt_support_dropped(link_info->advertising, 12258 link_info->support_auto_speeds2)) { 12259 link_info->advertising = link_info->support_auto_speeds2; 12260 return true; 12261 } 12262 return false; 12263 } 12264 if (bnxt_support_dropped(link_info->advertising, 12265 link_info->support_auto_speeds)) { 12266 link_info->advertising = link_info->support_auto_speeds; 12267 return true; 12268 } 12269 if (bnxt_support_dropped(link_info->advertising_pam4, 12270 link_info->support_pam4_auto_speeds)) { 12271 link_info->advertising_pam4 = link_info->support_pam4_auto_speeds; 12272 return true; 12273 } 12274 return false; 12275 } 12276 12277 int bnxt_update_link(struct bnxt *bp, bool chng_link_state) 12278 { 12279 struct bnxt_link_info *link_info = &bp->link_info; 12280 struct hwrm_port_phy_qcfg_output *resp; 12281 struct hwrm_port_phy_qcfg_input *req; 12282 u8 link_state = link_info->link_state; 12283 bool support_changed; 12284 int rc; 12285 12286 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCFG); 12287 if (rc) 12288 return rc; 12289 12290 resp = hwrm_req_hold(bp, req); 12291 rc = hwrm_req_send(bp, req); 12292 if (rc) { 12293 hwrm_req_drop(bp, req); 12294 if (BNXT_VF(bp) && rc == -ENODEV) { 12295 netdev_warn(bp->dev, "Cannot obtain link state while PF unavailable.\n"); 12296 rc = 0; 12297 } 12298 return rc; 12299 } 12300 12301 memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp)); 12302 link_info->phy_link_status = resp->link; 12303 link_info->duplex = resp->duplex_cfg; 12304 if (bp->hwrm_spec_code >= 0x10800) 12305 link_info->duplex = resp->duplex_state; 12306 link_info->pause = resp->pause; 12307 link_info->auto_mode = resp->auto_mode; 12308 link_info->auto_pause_setting = resp->auto_pause; 12309 link_info->lp_pause = resp->link_partner_adv_pause; 12310 link_info->force_pause_setting = resp->force_pause; 12311 link_info->duplex_setting = resp->duplex_cfg; 12312 if (link_info->phy_link_status == BNXT_LINK_LINK) { 12313 link_info->link_speed = le16_to_cpu(resp->link_speed); 12314 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) 12315 link_info->active_lanes = resp->active_lanes; 12316 } else { 12317 link_info->link_speed = 0; 12318 link_info->active_lanes = 0; 12319 } 12320 link_info->force_link_speed = le16_to_cpu(resp->force_link_speed); 12321 link_info->force_pam4_link_speed = 12322 le16_to_cpu(resp->force_pam4_link_speed); 12323 link_info->force_link_speed2 = le16_to_cpu(resp->force_link_speeds2); 12324 link_info->support_speeds = le16_to_cpu(resp->support_speeds); 12325 link_info->support_pam4_speeds = le16_to_cpu(resp->support_pam4_speeds); 12326 link_info->support_speeds2 = le16_to_cpu(resp->support_speeds2); 12327 link_info->auto_link_speeds = le16_to_cpu(resp->auto_link_speed_mask); 12328 link_info->auto_pam4_link_speeds = 12329 le16_to_cpu(resp->auto_pam4_link_speed_mask); 12330 link_info->auto_link_speeds2 = le16_to_cpu(resp->auto_link_speeds2); 12331 link_info->lp_auto_link_speeds = 12332 le16_to_cpu(resp->link_partner_adv_speeds); 12333 link_info->lp_auto_pam4_link_speeds = 12334 resp->link_partner_pam4_adv_speeds; 12335 link_info->preemphasis = le32_to_cpu(resp->preemphasis); 12336 link_info->phy_ver[0] = resp->phy_maj; 12337 link_info->phy_ver[1] = resp->phy_min; 12338 link_info->phy_ver[2] = resp->phy_bld; 12339 link_info->media_type = resp->media_type; 12340 link_info->phy_type = resp->phy_type; 12341 link_info->transceiver = resp->xcvr_pkg_type; 12342 link_info->phy_addr = resp->eee_config_phy_addr & 12343 PORT_PHY_QCFG_RESP_PHY_ADDR_MASK; 12344 link_info->module_status = resp->module_status; 12345 link_info->link_down_reason = resp->link_down_reason; 12346 12347 if (bp->phy_flags & BNXT_PHY_FL_EEE_CAP) { 12348 struct ethtool_keee *eee = &bp->eee; 12349 u16 fw_speeds; 12350 12351 eee->eee_active = 0; 12352 if (resp->eee_config_phy_addr & 12353 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ACTIVE) { 12354 eee->eee_active = 1; 12355 fw_speeds = le16_to_cpu( 12356 resp->link_partner_adv_eee_link_speed_mask); 12357 _bnxt_fw_to_linkmode(eee->lp_advertised, fw_speeds); 12358 } 12359 12360 /* Pull initial EEE config */ 12361 if (!chng_link_state) { 12362 if (resp->eee_config_phy_addr & 12363 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ENABLED) 12364 eee->eee_enabled = 1; 12365 12366 fw_speeds = le16_to_cpu(resp->adv_eee_link_speed_mask); 12367 _bnxt_fw_to_linkmode(eee->advertised, fw_speeds); 12368 12369 if (resp->eee_config_phy_addr & 12370 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_TX_LPI) { 12371 __le32 tmr; 12372 12373 eee->tx_lpi_enabled = 1; 12374 tmr = resp->xcvr_identifier_type_tx_lpi_timer; 12375 eee->tx_lpi_timer = le32_to_cpu(tmr) & 12376 PORT_PHY_QCFG_RESP_TX_LPI_TIMER_MASK; 12377 } 12378 } 12379 } 12380 12381 link_info->fec_cfg = PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED; 12382 if (bp->hwrm_spec_code >= 0x10504) { 12383 link_info->fec_cfg = le16_to_cpu(resp->fec_cfg); 12384 link_info->active_fec_sig_mode = resp->active_fec_signal_mode; 12385 } 12386 /* TODO: need to add more logic to report VF link */ 12387 if (chng_link_state) { 12388 if (link_info->phy_link_status == BNXT_LINK_LINK) 12389 link_info->link_state = BNXT_LINK_STATE_UP; 12390 else 12391 link_info->link_state = BNXT_LINK_STATE_DOWN; 12392 if (link_state != link_info->link_state) 12393 bnxt_report_link(bp); 12394 } else { 12395 /* always link down if not require to update link state */ 12396 link_info->link_state = BNXT_LINK_STATE_DOWN; 12397 } 12398 hwrm_req_drop(bp, req); 12399 12400 if (!BNXT_PHY_CFG_ABLE(bp)) 12401 return 0; 12402 12403 support_changed = bnxt_support_speed_dropped(link_info); 12404 if (support_changed && (link_info->autoneg & BNXT_AUTONEG_SPEED)) 12405 bnxt_hwrm_set_link_setting(bp, true, false); 12406 return 0; 12407 } 12408 12409 static void bnxt_get_port_module_status(struct bnxt *bp) 12410 { 12411 struct bnxt_link_info *link_info = &bp->link_info; 12412 struct hwrm_port_phy_qcfg_output *resp = &link_info->phy_qcfg_resp; 12413 u8 module_status; 12414 12415 if (bnxt_update_link(bp, true)) 12416 return; 12417 12418 module_status = link_info->module_status; 12419 switch (module_status) { 12420 case PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX: 12421 case PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN: 12422 case PORT_PHY_QCFG_RESP_MODULE_STATUS_WARNINGMSG: 12423 netdev_warn(bp->dev, "Unqualified SFP+ module detected on port %d\n", 12424 bp->pf.port_id); 12425 if (bp->hwrm_spec_code >= 0x10201) { 12426 netdev_warn(bp->dev, "Module part number %s\n", 12427 resp->phy_vendor_partnumber); 12428 } 12429 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX) 12430 netdev_warn(bp->dev, "TX is disabled\n"); 12431 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN) 12432 netdev_warn(bp->dev, "SFP+ module is shutdown\n"); 12433 } 12434 } 12435 12436 static void 12437 bnxt_hwrm_set_pause_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req) 12438 { 12439 if (bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) { 12440 if (bp->hwrm_spec_code >= 0x10201) 12441 req->auto_pause = 12442 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE; 12443 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX) 12444 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX; 12445 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX) 12446 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_TX; 12447 req->enables |= 12448 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); 12449 } else { 12450 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX) 12451 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_RX; 12452 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX) 12453 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_TX; 12454 req->enables |= 12455 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE); 12456 if (bp->hwrm_spec_code >= 0x10201) { 12457 req->auto_pause = req->force_pause; 12458 req->enables |= cpu_to_le32( 12459 PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); 12460 } 12461 } 12462 } 12463 12464 static void bnxt_hwrm_set_link_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req) 12465 { 12466 if (bp->link_info.autoneg & BNXT_AUTONEG_SPEED) { 12467 req->auto_mode |= PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK; 12468 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) { 12469 req->enables |= 12470 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEEDS2_MASK); 12471 req->auto_link_speeds2_mask = cpu_to_le16(bp->link_info.advertising); 12472 } else if (bp->link_info.advertising) { 12473 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK); 12474 req->auto_link_speed_mask = cpu_to_le16(bp->link_info.advertising); 12475 } 12476 if (bp->link_info.advertising_pam4) { 12477 req->enables |= 12478 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAM4_LINK_SPEED_MASK); 12479 req->auto_link_pam4_speed_mask = 12480 cpu_to_le16(bp->link_info.advertising_pam4); 12481 } 12482 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE); 12483 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG); 12484 } else { 12485 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE); 12486 if (bp->phy_flags & BNXT_PHY_FL_SPEEDS2) { 12487 req->force_link_speeds2 = cpu_to_le16(bp->link_info.req_link_speed); 12488 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2); 12489 netif_info(bp, link, bp->dev, "Forcing FW speed2: %d\n", 12490 (u32)bp->link_info.req_link_speed); 12491 } else if (bp->link_info.req_signal_mode == BNXT_SIG_MODE_PAM4) { 12492 req->force_pam4_link_speed = cpu_to_le16(bp->link_info.req_link_speed); 12493 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAM4_LINK_SPEED); 12494 } else { 12495 req->force_link_speed = cpu_to_le16(bp->link_info.req_link_speed); 12496 } 12497 } 12498 12499 /* tell chimp that the setting takes effect immediately */ 12500 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY); 12501 } 12502 12503 int bnxt_hwrm_set_pause(struct bnxt *bp) 12504 { 12505 struct hwrm_port_phy_cfg_input *req; 12506 int rc; 12507 12508 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); 12509 if (rc) 12510 return rc; 12511 12512 bnxt_hwrm_set_pause_common(bp, req); 12513 12514 if ((bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) || 12515 bp->link_info.force_link_chng) 12516 bnxt_hwrm_set_link_common(bp, req); 12517 12518 rc = hwrm_req_send(bp, req); 12519 if (!rc && !(bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL)) { 12520 /* since changing of pause setting doesn't trigger any link 12521 * change event, the driver needs to update the current pause 12522 * result upon successfully return of the phy_cfg command 12523 */ 12524 bp->link_info.pause = 12525 bp->link_info.force_pause_setting = bp->link_info.req_flow_ctrl; 12526 bp->link_info.auto_pause_setting = 0; 12527 if (!bp->link_info.force_link_chng) 12528 bnxt_report_link(bp); 12529 } 12530 bp->link_info.force_link_chng = false; 12531 return rc; 12532 } 12533 12534 static void bnxt_hwrm_set_eee(struct bnxt *bp, 12535 struct hwrm_port_phy_cfg_input *req) 12536 { 12537 struct ethtool_keee *eee = &bp->eee; 12538 12539 if (eee->eee_enabled) { 12540 u16 eee_speeds; 12541 u32 flags = PORT_PHY_CFG_REQ_FLAGS_EEE_ENABLE; 12542 12543 if (eee->tx_lpi_enabled) 12544 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_ENABLE; 12545 else 12546 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_DISABLE; 12547 12548 req->flags |= cpu_to_le32(flags); 12549 eee_speeds = bnxt_get_fw_auto_link_speeds(eee->advertised); 12550 req->eee_link_speed_mask = cpu_to_le16(eee_speeds); 12551 req->tx_lpi_timer = cpu_to_le32(eee->tx_lpi_timer); 12552 } else { 12553 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_EEE_DISABLE); 12554 } 12555 } 12556 12557 int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool set_pause, bool set_eee) 12558 { 12559 struct hwrm_port_phy_cfg_input *req; 12560 int rc; 12561 12562 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); 12563 if (rc) 12564 return rc; 12565 12566 if (set_pause) 12567 bnxt_hwrm_set_pause_common(bp, req); 12568 12569 bnxt_hwrm_set_link_common(bp, req); 12570 12571 if (set_eee) 12572 bnxt_hwrm_set_eee(bp, req); 12573 return hwrm_req_send(bp, req); 12574 } 12575 12576 static int bnxt_hwrm_shutdown_link(struct bnxt *bp) 12577 { 12578 struct hwrm_port_phy_cfg_input *req; 12579 int rc; 12580 12581 if (!BNXT_SINGLE_PF(bp)) 12582 return 0; 12583 12584 if (pci_num_vf(bp->pdev) && 12585 !(bp->phy_flags & BNXT_PHY_FL_FW_MANAGED_LKDN)) 12586 return 0; 12587 12588 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); 12589 if (rc) 12590 return rc; 12591 12592 req->flags = cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DWN); 12593 rc = hwrm_req_send(bp, req); 12594 if (!rc) { 12595 mutex_lock(&bp->link_lock); 12596 /* Device is not obliged link down in certain scenarios, even 12597 * when forced. Setting the state unknown is consistent with 12598 * driver startup and will force link state to be reported 12599 * during subsequent open based on PORT_PHY_QCFG. 12600 */ 12601 bp->link_info.link_state = BNXT_LINK_STATE_UNKNOWN; 12602 mutex_unlock(&bp->link_lock); 12603 } 12604 return rc; 12605 } 12606 12607 static int bnxt_fw_reset_via_optee(struct bnxt *bp) 12608 { 12609 #ifdef CONFIG_TEE_BNXT_FW 12610 int rc = tee_bnxt_fw_load(); 12611 12612 if (rc) 12613 netdev_err(bp->dev, "Failed FW reset via OP-TEE, rc=%d\n", rc); 12614 12615 return rc; 12616 #else 12617 netdev_err(bp->dev, "OP-TEE not supported\n"); 12618 return -ENODEV; 12619 #endif 12620 } 12621 12622 static int bnxt_try_recover_fw(struct bnxt *bp) 12623 { 12624 if (bp->fw_health && bp->fw_health->status_reliable) { 12625 int retry = 0, rc; 12626 u32 sts; 12627 12628 do { 12629 sts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 12630 rc = bnxt_hwrm_poll(bp); 12631 if (!BNXT_FW_IS_BOOTING(sts) && 12632 !BNXT_FW_IS_RECOVERING(sts)) 12633 break; 12634 retry++; 12635 } while (rc == -EBUSY && retry < BNXT_FW_RETRY); 12636 12637 if (!BNXT_FW_IS_HEALTHY(sts)) { 12638 netdev_err(bp->dev, 12639 "Firmware not responding, status: 0x%x\n", 12640 sts); 12641 rc = -ENODEV; 12642 } 12643 if (sts & FW_STATUS_REG_CRASHED_NO_MASTER) { 12644 netdev_warn(bp->dev, "Firmware recover via OP-TEE requested\n"); 12645 return bnxt_fw_reset_via_optee(bp); 12646 } 12647 return rc; 12648 } 12649 12650 return -ENODEV; 12651 } 12652 12653 void bnxt_clear_reservations(struct bnxt *bp, bool fw_reset) 12654 { 12655 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 12656 12657 if (!BNXT_NEW_RM(bp)) 12658 return; /* no resource reservations required */ 12659 12660 hw_resc->resv_cp_rings = 0; 12661 hw_resc->resv_stat_ctxs = 0; 12662 hw_resc->resv_irqs = 0; 12663 hw_resc->resv_tx_rings = 0; 12664 hw_resc->resv_rx_rings = 0; 12665 hw_resc->resv_hw_ring_grps = 0; 12666 hw_resc->resv_vnics = 0; 12667 hw_resc->resv_rsscos_ctxs = 0; 12668 if (!fw_reset) { 12669 bp->tx_nr_rings = 0; 12670 bp->rx_nr_rings = 0; 12671 } 12672 } 12673 12674 int bnxt_cancel_reservations(struct bnxt *bp, bool fw_reset) 12675 { 12676 int rc; 12677 12678 if (!BNXT_NEW_RM(bp)) 12679 return 0; /* no resource reservations required */ 12680 12681 rc = bnxt_hwrm_func_resc_qcaps(bp, true); 12682 if (rc) 12683 netdev_err(bp->dev, "resc_qcaps failed\n"); 12684 12685 bnxt_clear_reservations(bp, fw_reset); 12686 12687 return rc; 12688 } 12689 12690 static int bnxt_hwrm_if_change(struct bnxt *bp, bool up) 12691 { 12692 struct hwrm_func_drv_if_change_output *resp; 12693 struct hwrm_func_drv_if_change_input *req; 12694 bool resc_reinit = false; 12695 bool caps_change = false; 12696 int rc, retry = 0; 12697 bool fw_reset; 12698 u32 flags = 0; 12699 12700 fw_reset = (bp->fw_reset_state == BNXT_FW_RESET_STATE_ABORT); 12701 bp->fw_reset_state = 0; 12702 12703 if (!(bp->fw_cap & BNXT_FW_CAP_IF_CHANGE)) 12704 return 0; 12705 12706 rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_IF_CHANGE); 12707 if (rc) 12708 return rc; 12709 12710 if (up) 12711 req->flags = cpu_to_le32(FUNC_DRV_IF_CHANGE_REQ_FLAGS_UP); 12712 resp = hwrm_req_hold(bp, req); 12713 12714 hwrm_req_flags(bp, req, BNXT_HWRM_FULL_WAIT); 12715 while (retry < BNXT_FW_IF_RETRY) { 12716 rc = hwrm_req_send(bp, req); 12717 if (rc != -EAGAIN) 12718 break; 12719 12720 msleep(50); 12721 retry++; 12722 } 12723 12724 if (rc == -EAGAIN) { 12725 hwrm_req_drop(bp, req); 12726 return rc; 12727 } else if (!rc) { 12728 flags = le32_to_cpu(resp->flags); 12729 } else if (up) { 12730 rc = bnxt_try_recover_fw(bp); 12731 fw_reset = true; 12732 } 12733 hwrm_req_drop(bp, req); 12734 if (rc) 12735 return rc; 12736 12737 if (!up) { 12738 bnxt_inv_fw_health_reg(bp); 12739 return 0; 12740 } 12741 12742 if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_RESC_CHANGE) 12743 resc_reinit = true; 12744 if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE || 12745 test_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) 12746 fw_reset = true; 12747 else 12748 bnxt_remap_fw_health_regs(bp); 12749 12750 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state) && !fw_reset) { 12751 netdev_err(bp->dev, "RESET_DONE not set during FW reset.\n"); 12752 set_bit(BNXT_STATE_ABORT_ERR, &bp->state); 12753 return -ENODEV; 12754 } 12755 if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_CAPS_CHANGE) 12756 caps_change = true; 12757 12758 if (resc_reinit || fw_reset || caps_change) { 12759 if (fw_reset || caps_change) { 12760 set_bit(BNXT_STATE_FW_RESET_DET, &bp->state); 12761 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 12762 bnxt_ulp_irq_stop(bp); 12763 bnxt_free_ctx_mem(bp, false); 12764 bnxt_dcb_free(bp); 12765 rc = bnxt_fw_init_one(bp); 12766 if (rc) { 12767 clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state); 12768 set_bit(BNXT_STATE_ABORT_ERR, &bp->state); 12769 return rc; 12770 } 12771 /* IRQ will be initialized later in bnxt_request_irq()*/ 12772 bnxt_clear_int_mode(bp); 12773 } 12774 rc = bnxt_cancel_reservations(bp, fw_reset); 12775 } 12776 return rc; 12777 } 12778 12779 static int bnxt_hwrm_port_led_qcaps(struct bnxt *bp) 12780 { 12781 struct hwrm_port_led_qcaps_output *resp; 12782 struct hwrm_port_led_qcaps_input *req; 12783 struct bnxt_pf_info *pf = &bp->pf; 12784 int rc; 12785 12786 bp->num_leds = 0; 12787 if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10601) 12788 return 0; 12789 12790 rc = hwrm_req_init(bp, req, HWRM_PORT_LED_QCAPS); 12791 if (rc) 12792 return rc; 12793 12794 req->port_id = cpu_to_le16(pf->port_id); 12795 resp = hwrm_req_hold(bp, req); 12796 rc = hwrm_req_send(bp, req); 12797 if (rc) { 12798 hwrm_req_drop(bp, req); 12799 return rc; 12800 } 12801 if (resp->num_leds > 0 && resp->num_leds < BNXT_MAX_LED) { 12802 int i; 12803 12804 bp->num_leds = resp->num_leds; 12805 memcpy(bp->leds, &resp->led0_id, sizeof(bp->leds[0]) * 12806 bp->num_leds); 12807 for (i = 0; i < bp->num_leds; i++) { 12808 struct bnxt_led_info *led = &bp->leds[i]; 12809 __le16 caps = led->led_state_caps; 12810 12811 if (!led->led_group_id || 12812 !BNXT_LED_ALT_BLINK_CAP(caps)) { 12813 bp->num_leds = 0; 12814 break; 12815 } 12816 } 12817 } 12818 hwrm_req_drop(bp, req); 12819 return 0; 12820 } 12821 12822 int bnxt_hwrm_alloc_wol_fltr(struct bnxt *bp) 12823 { 12824 struct hwrm_wol_filter_alloc_output *resp; 12825 struct hwrm_wol_filter_alloc_input *req; 12826 int rc; 12827 12828 rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_ALLOC); 12829 if (rc) 12830 return rc; 12831 12832 req->port_id = cpu_to_le16(bp->pf.port_id); 12833 req->wol_type = WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT; 12834 req->enables = cpu_to_le32(WOL_FILTER_ALLOC_REQ_ENABLES_MAC_ADDRESS); 12835 memcpy(req->mac_address, bp->dev->dev_addr, ETH_ALEN); 12836 12837 resp = hwrm_req_hold(bp, req); 12838 rc = hwrm_req_send(bp, req); 12839 if (!rc) 12840 bp->wol_filter_id = resp->wol_filter_id; 12841 hwrm_req_drop(bp, req); 12842 return rc; 12843 } 12844 12845 int bnxt_hwrm_free_wol_fltr(struct bnxt *bp) 12846 { 12847 struct hwrm_wol_filter_free_input *req; 12848 int rc; 12849 12850 rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_FREE); 12851 if (rc) 12852 return rc; 12853 12854 req->port_id = cpu_to_le16(bp->pf.port_id); 12855 req->enables = cpu_to_le32(WOL_FILTER_FREE_REQ_ENABLES_WOL_FILTER_ID); 12856 req->wol_filter_id = bp->wol_filter_id; 12857 12858 return hwrm_req_send(bp, req); 12859 } 12860 12861 static u16 bnxt_hwrm_get_wol_fltrs(struct bnxt *bp, u16 handle) 12862 { 12863 struct hwrm_wol_filter_qcfg_output *resp; 12864 struct hwrm_wol_filter_qcfg_input *req; 12865 u16 next_handle = 0; 12866 int rc; 12867 12868 rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_QCFG); 12869 if (rc) 12870 return rc; 12871 12872 req->port_id = cpu_to_le16(bp->pf.port_id); 12873 req->handle = cpu_to_le16(handle); 12874 resp = hwrm_req_hold(bp, req); 12875 rc = hwrm_req_send(bp, req); 12876 if (!rc) { 12877 next_handle = le16_to_cpu(resp->next_handle); 12878 if (next_handle != 0) { 12879 if (resp->wol_type == 12880 WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT) { 12881 bp->wol = 1; 12882 bp->wol_filter_id = resp->wol_filter_id; 12883 } 12884 } 12885 } 12886 hwrm_req_drop(bp, req); 12887 return next_handle; 12888 } 12889 12890 static void bnxt_get_wol_settings(struct bnxt *bp) 12891 { 12892 u16 handle = 0; 12893 12894 bp->wol = 0; 12895 if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_WOL_CAP)) 12896 return; 12897 12898 do { 12899 handle = bnxt_hwrm_get_wol_fltrs(bp, handle); 12900 } while (handle && handle != 0xffff); 12901 } 12902 12903 static bool bnxt_eee_config_ok(struct bnxt *bp) 12904 { 12905 struct ethtool_keee *eee = &bp->eee; 12906 struct bnxt_link_info *link_info = &bp->link_info; 12907 12908 if (!(bp->phy_flags & BNXT_PHY_FL_EEE_CAP)) 12909 return true; 12910 12911 if (eee->eee_enabled) { 12912 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); 12913 __ETHTOOL_DECLARE_LINK_MODE_MASK(tmp); 12914 12915 _bnxt_fw_to_linkmode(advertising, link_info->advertising); 12916 12917 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) { 12918 eee->eee_enabled = 0; 12919 return false; 12920 } 12921 if (linkmode_andnot(tmp, eee->advertised, advertising)) { 12922 linkmode_and(eee->advertised, advertising, 12923 eee->supported); 12924 return false; 12925 } 12926 } 12927 return true; 12928 } 12929 12930 static int bnxt_update_phy_setting(struct bnxt *bp) 12931 { 12932 int rc; 12933 bool update_link = false; 12934 bool update_pause = false; 12935 bool update_eee = false; 12936 struct bnxt_link_info *link_info = &bp->link_info; 12937 12938 rc = bnxt_update_link(bp, true); 12939 if (rc) { 12940 netdev_err(bp->dev, "failed to update link (rc: %x)\n", 12941 rc); 12942 return rc; 12943 } 12944 if (!BNXT_SINGLE_PF(bp)) 12945 return 0; 12946 12947 if ((link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) && 12948 (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) != 12949 link_info->req_flow_ctrl) 12950 update_pause = true; 12951 if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) && 12952 link_info->force_pause_setting != link_info->req_flow_ctrl) 12953 update_pause = true; 12954 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) { 12955 if (BNXT_AUTO_MODE(link_info->auto_mode)) 12956 update_link = true; 12957 if (bnxt_force_speed_updated(link_info)) 12958 update_link = true; 12959 if (link_info->req_duplex != link_info->duplex_setting) 12960 update_link = true; 12961 } else { 12962 if (link_info->auto_mode == BNXT_LINK_AUTO_NONE) 12963 update_link = true; 12964 if (bnxt_auto_speed_updated(link_info)) 12965 update_link = true; 12966 } 12967 12968 /* The last close may have shutdown the link, so need to call 12969 * PHY_CFG to bring it back up. 12970 */ 12971 if (!BNXT_LINK_IS_UP(bp)) 12972 update_link = true; 12973 12974 if (!bnxt_eee_config_ok(bp)) 12975 update_eee = true; 12976 12977 if (update_link) 12978 rc = bnxt_hwrm_set_link_setting(bp, update_pause, update_eee); 12979 else if (update_pause) 12980 rc = bnxt_hwrm_set_pause(bp); 12981 if (rc) { 12982 netdev_err(bp->dev, "failed to update phy setting (rc: %x)\n", 12983 rc); 12984 return rc; 12985 } 12986 12987 return rc; 12988 } 12989 12990 static int bnxt_init_dflt_ring_mode(struct bnxt *bp); 12991 12992 static int bnxt_reinit_after_abort(struct bnxt *bp) 12993 { 12994 int rc; 12995 12996 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 12997 return -EBUSY; 12998 12999 if (bp->dev->reg_state == NETREG_UNREGISTERED) 13000 return -ENODEV; 13001 13002 rc = bnxt_fw_init_one(bp); 13003 if (!rc) { 13004 bnxt_clear_int_mode(bp); 13005 rc = bnxt_init_int_mode(bp); 13006 if (!rc) { 13007 clear_bit(BNXT_STATE_ABORT_ERR, &bp->state); 13008 set_bit(BNXT_STATE_FW_RESET_DET, &bp->state); 13009 } 13010 } 13011 return rc; 13012 } 13013 13014 static void bnxt_cfg_one_usr_fltr(struct bnxt *bp, struct bnxt_filter_base *fltr) 13015 { 13016 struct bnxt_ntuple_filter *ntp_fltr; 13017 struct bnxt_l2_filter *l2_fltr; 13018 13019 if (list_empty(&fltr->list)) 13020 return; 13021 13022 if (fltr->type == BNXT_FLTR_TYPE_NTUPLE) { 13023 ntp_fltr = container_of(fltr, struct bnxt_ntuple_filter, base); 13024 l2_fltr = bp->vnic_info[BNXT_VNIC_DEFAULT].l2_filters[0]; 13025 atomic_inc(&l2_fltr->refcnt); 13026 ntp_fltr->l2_fltr = l2_fltr; 13027 if (bnxt_hwrm_cfa_ntuple_filter_alloc(bp, ntp_fltr)) { 13028 bnxt_del_ntp_filter(bp, ntp_fltr); 13029 netdev_err(bp->dev, "restoring previously configured ntuple filter id %d failed\n", 13030 fltr->sw_id); 13031 } 13032 } else if (fltr->type == BNXT_FLTR_TYPE_L2) { 13033 l2_fltr = container_of(fltr, struct bnxt_l2_filter, base); 13034 if (bnxt_hwrm_l2_filter_alloc(bp, l2_fltr)) { 13035 bnxt_del_l2_filter(bp, l2_fltr); 13036 netdev_err(bp->dev, "restoring previously configured l2 filter id %d failed\n", 13037 fltr->sw_id); 13038 } 13039 } 13040 } 13041 13042 static void bnxt_cfg_usr_fltrs(struct bnxt *bp) 13043 { 13044 struct bnxt_filter_base *usr_fltr, *tmp; 13045 13046 list_for_each_entry_safe(usr_fltr, tmp, &bp->usr_fltr_list, list) 13047 bnxt_cfg_one_usr_fltr(bp, usr_fltr); 13048 } 13049 13050 static int bnxt_set_xps_mapping(struct bnxt *bp) 13051 { 13052 int numa_node = dev_to_node(&bp->pdev->dev); 13053 unsigned int q_idx, map_idx, cpu, i; 13054 const struct cpumask *cpu_mask_ptr; 13055 int nr_cpus = num_online_cpus(); 13056 cpumask_t *q_map; 13057 int rc = 0; 13058 13059 q_map = kzalloc_objs(*q_map, bp->tx_nr_rings_per_tc); 13060 if (!q_map) 13061 return -ENOMEM; 13062 13063 /* Create CPU mask for all TX queues across MQPRIO traffic classes. 13064 * Each TC has the same number of TX queues. The nth TX queue for each 13065 * TC will have the same CPU mask. 13066 */ 13067 for (i = 0; i < nr_cpus; i++) { 13068 map_idx = i % bp->tx_nr_rings_per_tc; 13069 cpu = cpumask_local_spread(i, numa_node); 13070 cpu_mask_ptr = get_cpu_mask(cpu); 13071 cpumask_or(&q_map[map_idx], &q_map[map_idx], cpu_mask_ptr); 13072 } 13073 13074 /* Register CPU mask for each TX queue except the ones marked for XDP */ 13075 for (q_idx = 0; q_idx < bp->dev->real_num_tx_queues; q_idx++) { 13076 map_idx = q_idx % bp->tx_nr_rings_per_tc; 13077 rc = netif_set_xps_queue(bp->dev, &q_map[map_idx], q_idx); 13078 if (rc) { 13079 netdev_warn(bp->dev, "Error setting XPS for q:%d\n", 13080 q_idx); 13081 break; 13082 } 13083 } 13084 13085 kfree(q_map); 13086 13087 return rc; 13088 } 13089 13090 static int bnxt_tx_nr_rings(struct bnxt *bp) 13091 { 13092 return bp->num_tc ? bp->tx_nr_rings_per_tc * bp->num_tc : 13093 bp->tx_nr_rings_per_tc; 13094 } 13095 13096 static int bnxt_tx_nr_rings_per_tc(struct bnxt *bp) 13097 { 13098 return bp->num_tc ? bp->tx_nr_rings / bp->num_tc : bp->tx_nr_rings; 13099 } 13100 13101 static void bnxt_set_xdp_tx_rings(struct bnxt *bp) 13102 { 13103 bp->tx_nr_rings_xdp = bp->tx_nr_rings_per_tc; 13104 bp->tx_nr_rings += bp->tx_nr_rings_xdp; 13105 } 13106 13107 static void bnxt_adj_tx_rings(struct bnxt *bp) 13108 { 13109 /* Make adjustments if reserved TX rings are less than requested */ 13110 bp->tx_nr_rings -= bp->tx_nr_rings_xdp; 13111 bp->tx_nr_rings_per_tc = bnxt_tx_nr_rings_per_tc(bp); 13112 if (bp->tx_nr_rings_xdp) 13113 bnxt_set_xdp_tx_rings(bp); 13114 } 13115 13116 static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 13117 { 13118 int rc = 0; 13119 13120 netif_carrier_off(bp->dev); 13121 if (irq_re_init) { 13122 /* Reserve rings now if none were reserved at driver probe. */ 13123 rc = bnxt_init_dflt_ring_mode(bp); 13124 if (rc) { 13125 netdev_err(bp->dev, "Failed to reserve default rings at open\n"); 13126 return rc; 13127 } 13128 } 13129 rc = bnxt_reserve_rings(bp, irq_re_init); 13130 if (rc) 13131 return rc; 13132 13133 bnxt_adj_tx_rings(bp); 13134 rc = bnxt_alloc_mem(bp, irq_re_init); 13135 if (rc) { 13136 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc); 13137 goto open_err_free_mem; 13138 } 13139 13140 if (irq_re_init) { 13141 bnxt_init_napi(bp); 13142 rc = bnxt_request_irq(bp); 13143 if (rc) { 13144 netdev_err(bp->dev, "bnxt_request_irq err: %x\n", rc); 13145 goto open_err_irq; 13146 } 13147 } 13148 13149 rc = bnxt_init_nic(bp, irq_re_init); 13150 if (rc) { 13151 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc); 13152 goto open_err_irq; 13153 } 13154 13155 bnxt_enable_napi(bp); 13156 bnxt_debug_dev_init(bp); 13157 13158 if (link_re_init) { 13159 mutex_lock(&bp->link_lock); 13160 rc = bnxt_update_phy_setting(bp); 13161 mutex_unlock(&bp->link_lock); 13162 if (rc) { 13163 netdev_warn(bp->dev, "failed to update phy settings\n"); 13164 if (BNXT_SINGLE_PF(bp)) { 13165 bp->link_info.phy_retry = true; 13166 bp->link_info.phy_retry_expires = 13167 jiffies + 5 * HZ; 13168 } 13169 } 13170 } 13171 13172 if (irq_re_init) { 13173 udp_tunnel_nic_reset_ntf(bp->dev); 13174 rc = bnxt_set_xps_mapping(bp); 13175 if (rc) 13176 netdev_warn(bp->dev, "failed to set xps mapping\n"); 13177 } 13178 13179 if (bp->tx_nr_rings_xdp < num_possible_cpus()) { 13180 if (!static_key_enabled(&bnxt_xdp_locking_key)) 13181 static_branch_enable(&bnxt_xdp_locking_key); 13182 } else if (static_key_enabled(&bnxt_xdp_locking_key)) { 13183 static_branch_disable(&bnxt_xdp_locking_key); 13184 } 13185 set_bit(BNXT_STATE_OPEN, &bp->state); 13186 bnxt_enable_int(bp); 13187 /* Enable TX queues */ 13188 bnxt_tx_enable(bp); 13189 mod_timer(&bp->timer, jiffies + bp->current_interval); 13190 /* Poll link status and check for SFP+ module status */ 13191 mutex_lock(&bp->link_lock); 13192 bnxt_get_port_module_status(bp); 13193 mutex_unlock(&bp->link_lock); 13194 13195 /* VF-reps may need to be re-opened after the PF is re-opened */ 13196 if (BNXT_PF(bp)) 13197 bnxt_vf_reps_open(bp); 13198 bnxt_ptp_init_rtc(bp, true); 13199 bnxt_ptp_cfg_tstamp_filters(bp); 13200 if (BNXT_SUPPORTS_MULTI_RSS_CTX(bp)) 13201 bnxt_hwrm_realloc_rss_ctx_vnic(bp); 13202 bnxt_cfg_usr_fltrs(bp); 13203 return 0; 13204 13205 open_err_irq: 13206 bnxt_del_napi(bp); 13207 13208 open_err_free_mem: 13209 bnxt_free_skbs(bp); 13210 bnxt_free_irq(bp); 13211 bnxt_free_mem(bp, true); 13212 return rc; 13213 } 13214 13215 int bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 13216 { 13217 int rc = 0; 13218 13219 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) 13220 rc = -EIO; 13221 if (!rc) 13222 rc = __bnxt_open_nic(bp, irq_re_init, link_re_init); 13223 if (rc) { 13224 netdev_err(bp->dev, "nic open fail (rc: %x)\n", rc); 13225 netif_close(bp->dev); 13226 } 13227 return rc; 13228 } 13229 13230 /* netdev instance lock held, open the NIC half way by allocating all 13231 * resources, but NAPI, IRQ, and TX are not enabled. This is mainly used 13232 * for offline self tests. 13233 */ 13234 int bnxt_half_open_nic(struct bnxt *bp) 13235 { 13236 int rc = 0; 13237 13238 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 13239 netdev_err(bp->dev, "A previous firmware reset has not completed, aborting half open\n"); 13240 rc = -ENODEV; 13241 goto half_open_err; 13242 } 13243 13244 rc = bnxt_alloc_mem(bp, true); 13245 if (rc) { 13246 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc); 13247 goto half_open_err; 13248 } 13249 bnxt_init_napi(bp); 13250 set_bit(BNXT_STATE_HALF_OPEN, &bp->state); 13251 rc = bnxt_init_nic(bp, true); 13252 if (rc) { 13253 clear_bit(BNXT_STATE_HALF_OPEN, &bp->state); 13254 bnxt_del_napi(bp); 13255 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc); 13256 goto half_open_err; 13257 } 13258 return 0; 13259 13260 half_open_err: 13261 bnxt_free_skbs(bp); 13262 bnxt_free_mem(bp, true); 13263 netif_close(bp->dev); 13264 return rc; 13265 } 13266 13267 /* netdev instance lock held, this call can only be made after a previous 13268 * successful call to bnxt_half_open_nic(). 13269 */ 13270 void bnxt_half_close_nic(struct bnxt *bp) 13271 { 13272 bnxt_hwrm_resource_free(bp, false, true); 13273 bnxt_del_napi(bp); 13274 bnxt_free_skbs(bp); 13275 bnxt_free_mem(bp, true); 13276 clear_bit(BNXT_STATE_HALF_OPEN, &bp->state); 13277 } 13278 13279 void bnxt_reenable_sriov(struct bnxt *bp) 13280 { 13281 if (BNXT_PF(bp)) { 13282 struct bnxt_pf_info *pf = &bp->pf; 13283 int n = pf->active_vfs; 13284 13285 if (n) 13286 bnxt_cfg_hw_sriov(bp, &n, true); 13287 } 13288 } 13289 13290 static int bnxt_open(struct net_device *dev) 13291 { 13292 struct bnxt *bp = netdev_priv(dev); 13293 int rc; 13294 13295 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 13296 rc = bnxt_reinit_after_abort(bp); 13297 if (rc) { 13298 if (rc == -EBUSY) 13299 netdev_err(bp->dev, "A previous firmware reset has not completed, aborting\n"); 13300 else 13301 netdev_err(bp->dev, "Failed to reinitialize after aborted firmware reset\n"); 13302 return -ENODEV; 13303 } 13304 } 13305 13306 rc = bnxt_hwrm_if_change(bp, true); 13307 if (rc) 13308 return rc; 13309 13310 rc = __bnxt_open_nic(bp, true, true); 13311 if (rc) { 13312 bnxt_hwrm_if_change(bp, false); 13313 } else { 13314 if (test_and_clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) { 13315 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 13316 bnxt_queue_sp_work(bp, 13317 BNXT_RESTART_ULP_SP_EVENT); 13318 } 13319 } 13320 13321 return rc; 13322 } 13323 13324 static bool bnxt_drv_busy(struct bnxt *bp) 13325 { 13326 return (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state) || 13327 test_bit(BNXT_STATE_READ_STATS, &bp->state)); 13328 } 13329 13330 static void bnxt_get_ring_stats(struct bnxt *bp, 13331 struct rtnl_link_stats64 *stats); 13332 13333 static void __bnxt_close_nic(struct bnxt *bp, bool irq_re_init, 13334 bool link_re_init) 13335 { 13336 /* Close the VF-reps before closing PF */ 13337 if (BNXT_PF(bp)) 13338 bnxt_vf_reps_close(bp); 13339 13340 /* Change device state to avoid TX queue wake up's */ 13341 bnxt_tx_disable(bp); 13342 13343 clear_bit(BNXT_STATE_OPEN, &bp->state); 13344 smp_mb__after_atomic(); 13345 while (bnxt_drv_busy(bp)) 13346 msleep(20); 13347 13348 if (BNXT_SUPPORTS_MULTI_RSS_CTX(bp)) 13349 bnxt_clear_rss_ctxs(bp); 13350 /* Flush rings and disable interrupts */ 13351 bnxt_shutdown_nic(bp, irq_re_init); 13352 13353 /* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */ 13354 13355 bnxt_debug_dev_exit(bp); 13356 bnxt_disable_napi(bp); 13357 timer_delete_sync(&bp->timer); 13358 bnxt_free_skbs(bp); 13359 13360 /* Save ring stats before shutdown */ 13361 if (bp->bnapi && irq_re_init) { 13362 bnxt_get_ring_stats(bp, &bp->net_stats_prev); 13363 bnxt_get_ring_drv_stats(bp, &bp->ring_drv_stats_prev); 13364 } 13365 if (irq_re_init) { 13366 bnxt_free_irq(bp); 13367 bnxt_del_napi(bp); 13368 } 13369 bnxt_free_mem(bp, irq_re_init); 13370 } 13371 13372 void bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 13373 { 13374 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 13375 /* If we get here, it means firmware reset is in progress 13376 * while we are trying to close. We can safely proceed with 13377 * the close because we are holding netdev instance lock. 13378 * Some firmware messages may fail as we proceed to close. 13379 * We set the ABORT_ERR flag here so that the FW reset thread 13380 * will later abort when it gets the netdev instance lock 13381 * and sees the flag. 13382 */ 13383 netdev_warn(bp->dev, "FW reset in progress during close, FW reset will be aborted\n"); 13384 set_bit(BNXT_STATE_ABORT_ERR, &bp->state); 13385 } 13386 13387 #ifdef CONFIG_BNXT_SRIOV 13388 if (bp->sriov_cfg) { 13389 int rc; 13390 13391 rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait, 13392 !bp->sriov_cfg, 13393 BNXT_SRIOV_CFG_WAIT_TMO); 13394 if (!rc) 13395 netdev_warn(bp->dev, "timeout waiting for SRIOV config operation to complete, proceeding to close!\n"); 13396 else if (rc < 0) 13397 netdev_warn(bp->dev, "SRIOV config operation interrupted, proceeding to close!\n"); 13398 } 13399 #endif 13400 __bnxt_close_nic(bp, irq_re_init, link_re_init); 13401 } 13402 13403 static int bnxt_close(struct net_device *dev) 13404 { 13405 struct bnxt *bp = netdev_priv(dev); 13406 13407 bnxt_close_nic(bp, true, true); 13408 bnxt_hwrm_shutdown_link(bp); 13409 bnxt_hwrm_if_change(bp, false); 13410 return 0; 13411 } 13412 13413 static int bnxt_hwrm_port_phy_read(struct bnxt *bp, u16 phy_addr, u16 reg, 13414 u16 *val) 13415 { 13416 struct hwrm_port_phy_mdio_read_output *resp; 13417 struct hwrm_port_phy_mdio_read_input *req; 13418 int rc; 13419 13420 if (bp->hwrm_spec_code < 0x10a00) 13421 return -EOPNOTSUPP; 13422 13423 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_MDIO_READ); 13424 if (rc) 13425 return rc; 13426 13427 req->port_id = cpu_to_le16(bp->pf.port_id); 13428 req->phy_addr = phy_addr; 13429 req->reg_addr = cpu_to_le16(reg & 0x1f); 13430 if (mdio_phy_id_is_c45(phy_addr)) { 13431 req->cl45_mdio = 1; 13432 req->phy_addr = mdio_phy_id_prtad(phy_addr); 13433 req->dev_addr = mdio_phy_id_devad(phy_addr); 13434 req->reg_addr = cpu_to_le16(reg); 13435 } 13436 13437 resp = hwrm_req_hold(bp, req); 13438 rc = hwrm_req_send(bp, req); 13439 if (!rc) 13440 *val = le16_to_cpu(resp->reg_data); 13441 hwrm_req_drop(bp, req); 13442 return rc; 13443 } 13444 13445 static int bnxt_hwrm_port_phy_write(struct bnxt *bp, u16 phy_addr, u16 reg, 13446 u16 val) 13447 { 13448 struct hwrm_port_phy_mdio_write_input *req; 13449 int rc; 13450 13451 if (bp->hwrm_spec_code < 0x10a00) 13452 return -EOPNOTSUPP; 13453 13454 rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_MDIO_WRITE); 13455 if (rc) 13456 return rc; 13457 13458 req->port_id = cpu_to_le16(bp->pf.port_id); 13459 req->phy_addr = phy_addr; 13460 req->reg_addr = cpu_to_le16(reg & 0x1f); 13461 if (mdio_phy_id_is_c45(phy_addr)) { 13462 req->cl45_mdio = 1; 13463 req->phy_addr = mdio_phy_id_prtad(phy_addr); 13464 req->dev_addr = mdio_phy_id_devad(phy_addr); 13465 req->reg_addr = cpu_to_le16(reg); 13466 } 13467 req->reg_data = cpu_to_le16(val); 13468 13469 return hwrm_req_send(bp, req); 13470 } 13471 13472 /* netdev instance lock held */ 13473 static int bnxt_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 13474 { 13475 struct mii_ioctl_data *mdio = if_mii(ifr); 13476 struct bnxt *bp = netdev_priv(dev); 13477 int rc; 13478 13479 switch (cmd) { 13480 case SIOCGMIIPHY: 13481 mdio->phy_id = bp->link_info.phy_addr; 13482 13483 fallthrough; 13484 case SIOCGMIIREG: { 13485 u16 mii_regval = 0; 13486 13487 if (!netif_running(dev)) 13488 return -EAGAIN; 13489 13490 rc = bnxt_hwrm_port_phy_read(bp, mdio->phy_id, mdio->reg_num, 13491 &mii_regval); 13492 mdio->val_out = mii_regval; 13493 return rc; 13494 } 13495 13496 case SIOCSMIIREG: 13497 if (!netif_running(dev)) 13498 return -EAGAIN; 13499 13500 return bnxt_hwrm_port_phy_write(bp, mdio->phy_id, mdio->reg_num, 13501 mdio->val_in); 13502 13503 default: 13504 /* do nothing */ 13505 break; 13506 } 13507 return -EOPNOTSUPP; 13508 } 13509 13510 static void bnxt_get_ring_stats(struct bnxt *bp, 13511 struct rtnl_link_stats64 *stats) 13512 { 13513 int i; 13514 13515 for (i = 0; i < bp->cp_nr_rings; i++) { 13516 struct bnxt_napi *bnapi = bp->bnapi[i]; 13517 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 13518 u64 *sw = cpr->stats.sw_stats; 13519 13520 stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_ucast_pkts); 13521 stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts); 13522 stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_bcast_pkts); 13523 13524 stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_ucast_pkts); 13525 stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_mcast_pkts); 13526 stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_bcast_pkts); 13527 13528 stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_ucast_bytes); 13529 stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_mcast_bytes); 13530 stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_bcast_bytes); 13531 13532 stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_ucast_bytes); 13533 stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_mcast_bytes); 13534 stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_bcast_bytes); 13535 13536 stats->rx_missed_errors += 13537 BNXT_GET_RING_STATS64(sw, rx_discard_pkts); 13538 13539 stats->multicast += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts); 13540 13541 stats->tx_dropped += BNXT_GET_RING_STATS64(sw, tx_error_pkts); 13542 13543 stats->rx_dropped += 13544 cpr->sw_stats->rx.rx_netpoll_discards + 13545 cpr->sw_stats->rx.rx_oom_discards; 13546 } 13547 } 13548 13549 static void bnxt_add_prev_stats(struct bnxt *bp, 13550 struct rtnl_link_stats64 *stats) 13551 { 13552 struct rtnl_link_stats64 *prev_stats = &bp->net_stats_prev; 13553 13554 stats->rx_packets += prev_stats->rx_packets; 13555 stats->tx_packets += prev_stats->tx_packets; 13556 stats->rx_bytes += prev_stats->rx_bytes; 13557 stats->tx_bytes += prev_stats->tx_bytes; 13558 stats->rx_missed_errors += prev_stats->rx_missed_errors; 13559 stats->multicast += prev_stats->multicast; 13560 stats->rx_dropped += prev_stats->rx_dropped; 13561 stats->tx_dropped += prev_stats->tx_dropped; 13562 } 13563 13564 static void 13565 bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 13566 { 13567 struct bnxt *bp = netdev_priv(dev); 13568 13569 set_bit(BNXT_STATE_READ_STATS, &bp->state); 13570 /* Make sure bnxt_close_nic() sees that we are reading stats before 13571 * we check the BNXT_STATE_OPEN flag. 13572 */ 13573 smp_mb__after_atomic(); 13574 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 13575 clear_bit(BNXT_STATE_READ_STATS, &bp->state); 13576 *stats = bp->net_stats_prev; 13577 return; 13578 } 13579 13580 bnxt_get_ring_stats(bp, stats); 13581 bnxt_add_prev_stats(bp, stats); 13582 13583 if (bp->flags & BNXT_FLAG_PORT_STATS) { 13584 u64 *rx = bp->port_stats.sw_stats; 13585 u64 *tx = bp->port_stats.sw_stats + 13586 BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; 13587 13588 stats->rx_crc_errors = 13589 BNXT_GET_RX_PORT_STATS64(rx, rx_fcs_err_frames); 13590 stats->rx_frame_errors = 13591 BNXT_GET_RX_PORT_STATS64(rx, rx_align_err_frames); 13592 stats->rx_length_errors = 13593 BNXT_GET_RX_PORT_STATS64(rx, rx_undrsz_frames) + 13594 BNXT_GET_RX_PORT_STATS64(rx, rx_ovrsz_frames) + 13595 BNXT_GET_RX_PORT_STATS64(rx, rx_runt_frames); 13596 stats->rx_errors = 13597 BNXT_GET_RX_PORT_STATS64(rx, rx_false_carrier_frames) + 13598 BNXT_GET_RX_PORT_STATS64(rx, rx_jbr_frames); 13599 stats->collisions = 13600 BNXT_GET_TX_PORT_STATS64(tx, tx_total_collisions); 13601 stats->tx_fifo_errors = 13602 BNXT_GET_TX_PORT_STATS64(tx, tx_fifo_underruns); 13603 stats->tx_errors = BNXT_GET_TX_PORT_STATS64(tx, tx_err); 13604 } 13605 clear_bit(BNXT_STATE_READ_STATS, &bp->state); 13606 } 13607 13608 static void bnxt_get_one_ring_drv_stats(struct bnxt *bp, 13609 struct bnxt_total_ring_drv_stats *stats, 13610 struct bnxt_cp_ring_info *cpr) 13611 { 13612 struct bnxt_sw_stats *sw_stats = cpr->sw_stats; 13613 u64 *hw_stats = cpr->stats.sw_stats; 13614 13615 stats->rx_total_l4_csum_errors += sw_stats->rx.rx_l4_csum_errors; 13616 stats->rx_total_resets += sw_stats->rx.rx_resets; 13617 stats->rx_total_buf_errors += sw_stats->rx.rx_buf_errors; 13618 stats->rx_total_oom_discards += sw_stats->rx.rx_oom_discards; 13619 stats->rx_total_netpoll_discards += sw_stats->rx.rx_netpoll_discards; 13620 stats->rx_total_ring_discards += 13621 BNXT_GET_RING_STATS64(hw_stats, rx_discard_pkts); 13622 stats->rx_total_hw_gro_packets += sw_stats->rx.rx_hw_gro_packets; 13623 stats->rx_total_hw_gro_wire_packets += sw_stats->rx.rx_hw_gro_wire_packets; 13624 stats->tx_total_resets += sw_stats->tx.tx_resets; 13625 stats->tx_total_ring_discards += 13626 BNXT_GET_RING_STATS64(hw_stats, tx_discard_pkts); 13627 stats->total_missed_irqs += sw_stats->cmn.missed_irqs; 13628 } 13629 13630 void bnxt_get_ring_drv_stats(struct bnxt *bp, 13631 struct bnxt_total_ring_drv_stats *stats) 13632 { 13633 int i; 13634 13635 for (i = 0; i < bp->cp_nr_rings; i++) 13636 bnxt_get_one_ring_drv_stats(bp, stats, &bp->bnapi[i]->cp_ring); 13637 } 13638 13639 static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask, 13640 const struct netdev_hw_addr_list *mc) 13641 { 13642 struct bnxt_vnic_info *vnic = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 13643 struct netdev_hw_addr *ha; 13644 u8 *haddr; 13645 int mc_count = 0; 13646 bool update = false; 13647 int off = 0; 13648 13649 netdev_hw_addr_list_for_each(ha, mc) { 13650 if (mc_count >= BNXT_MAX_MC_ADDRS) { 13651 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 13652 vnic->mc_list_count = 0; 13653 return false; 13654 } 13655 haddr = ha->addr; 13656 if (!ether_addr_equal(haddr, vnic->mc_list + off)) { 13657 memcpy(vnic->mc_list + off, haddr, ETH_ALEN); 13658 update = true; 13659 } 13660 off += ETH_ALEN; 13661 mc_count++; 13662 } 13663 if (mc_count) 13664 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST; 13665 13666 if (mc_count != vnic->mc_list_count) { 13667 vnic->mc_list_count = mc_count; 13668 update = true; 13669 } 13670 return update; 13671 } 13672 13673 static bool bnxt_uc_list_updated(struct bnxt *bp, 13674 const struct netdev_hw_addr_list *uc) 13675 { 13676 struct bnxt_vnic_info *vnic = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 13677 struct netdev_hw_addr *ha; 13678 int off = 0; 13679 13680 if (netdev_hw_addr_list_count(uc) != (vnic->uc_filter_count - 1)) 13681 return true; 13682 13683 netdev_hw_addr_list_for_each(ha, uc) { 13684 if (!ether_addr_equal(ha->addr, vnic->uc_list + off)) 13685 return true; 13686 13687 off += ETH_ALEN; 13688 } 13689 return false; 13690 } 13691 13692 static int bnxt_set_rx_mode(struct net_device *dev, 13693 struct netdev_hw_addr_list *uc, 13694 struct netdev_hw_addr_list *mc) 13695 { 13696 struct bnxt *bp = netdev_priv(dev); 13697 struct bnxt_vnic_info *vnic; 13698 bool mc_update = false; 13699 bool uc_update; 13700 u32 mask; 13701 13702 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) 13703 return 0; 13704 13705 vnic = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 13706 mask = vnic->rx_mask; 13707 mask &= ~(CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS | 13708 CFA_L2_SET_RX_MASK_REQ_MASK_MCAST | 13709 CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST | 13710 CFA_L2_SET_RX_MASK_REQ_MASK_BCAST); 13711 13712 if (dev->flags & IFF_PROMISC) 13713 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 13714 13715 uc_update = bnxt_uc_list_updated(bp, uc); 13716 13717 if (dev->flags & IFF_BROADCAST) 13718 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST; 13719 if (dev->flags & IFF_ALLMULTI) { 13720 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 13721 vnic->mc_list_count = 0; 13722 } else if (dev->flags & IFF_MULTICAST) { 13723 mc_update = bnxt_mc_list_updated(bp, &mask, mc); 13724 } 13725 13726 if (mask != vnic->rx_mask || uc_update || mc_update) { 13727 vnic->rx_mask = mask; 13728 13729 return bnxt_cfg_rx_mode(bp, uc, uc_update); 13730 } 13731 13732 return 0; 13733 } 13734 13735 static int bnxt_cfg_rx_mode(struct bnxt *bp, struct netdev_hw_addr_list *uc, 13736 bool uc_update) 13737 { 13738 struct net_device *dev = bp->dev; 13739 struct bnxt_vnic_info *vnic = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 13740 struct netdev_hw_addr *ha; 13741 int i, off = 0, rc; 13742 13743 if (!uc_update) 13744 goto skip_uc; 13745 13746 for (i = 1; i < vnic->uc_filter_count; i++) { 13747 struct bnxt_l2_filter *fltr = vnic->l2_filters[i]; 13748 13749 bnxt_hwrm_l2_filter_free(bp, fltr); 13750 bnxt_del_l2_filter(bp, fltr); 13751 } 13752 13753 vnic->uc_filter_count = 1; 13754 13755 netif_addr_lock_bh(dev); 13756 if (netdev_hw_addr_list_count(uc) > (BNXT_MAX_UC_ADDRS - 1)) { 13757 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 13758 } else { 13759 netdev_hw_addr_list_for_each(ha, uc) { 13760 memcpy(vnic->uc_list + off, ha->addr, ETH_ALEN); 13761 off += ETH_ALEN; 13762 vnic->uc_filter_count++; 13763 } 13764 } 13765 netif_addr_unlock_bh(dev); 13766 13767 for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) { 13768 rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off); 13769 if (rc) { 13770 if (BNXT_VF(bp) && rc == -ENODEV) { 13771 netdev_warn(bp->dev, "Cannot configure L2 filters while PF is unavailable, will retry\n"); 13772 rc = -EAGAIN; 13773 } else if (rc == -EAGAIN) { 13774 netdev_warn(bp->dev, "FW busy while setting vnic filter, will retry\n"); 13775 } else { 13776 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc); 13777 } 13778 vnic->uc_filter_count = i; 13779 return rc; 13780 } 13781 } 13782 13783 skip_uc: 13784 if ((vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS) && 13785 !bnxt_promisc_ok(bp)) 13786 vnic->rx_mask &= ~CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 13787 rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0); 13788 if (rc && (vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_MCAST)) { 13789 netdev_info(bp->dev, "Failed setting MC filters rc: %d, turning on ALL_MCAST mode\n", 13790 rc); 13791 vnic->rx_mask &= ~CFA_L2_SET_RX_MASK_REQ_MASK_MCAST; 13792 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 13793 vnic->mc_list_count = 0; 13794 rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0); 13795 } 13796 if (rc) 13797 netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %d\n", 13798 rc); 13799 13800 return rc; 13801 } 13802 13803 static bool bnxt_can_reserve_rings(struct bnxt *bp) 13804 { 13805 #ifdef CONFIG_BNXT_SRIOV 13806 if (BNXT_NEW_RM(bp) && BNXT_VF(bp)) { 13807 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 13808 13809 /* No minimum rings were provisioned by the PF. Don't 13810 * reserve rings by default when device is down. 13811 */ 13812 if (hw_resc->min_tx_rings || hw_resc->resv_tx_rings) 13813 return true; 13814 13815 if (!netif_running(bp->dev)) 13816 return false; 13817 } 13818 #endif 13819 return true; 13820 } 13821 13822 /* If the chip and firmware supports RFS */ 13823 static bool bnxt_rfs_supported(struct bnxt *bp) 13824 { 13825 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 13826 if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) 13827 return true; 13828 return false; 13829 } 13830 /* 212 firmware is broken for aRFS */ 13831 if (BNXT_FW_MAJ(bp) == 212) 13832 return false; 13833 if (BNXT_PF(bp) && !BNXT_CHIP_TYPE_NITRO_A0(bp)) 13834 return true; 13835 if (bp->rss_cap & BNXT_RSS_CAP_NEW_RSS_CAP) 13836 return true; 13837 return false; 13838 } 13839 13840 /* If runtime conditions support RFS */ 13841 bool bnxt_rfs_capable(struct bnxt *bp, bool new_rss_ctx) 13842 { 13843 struct bnxt_hw_rings hwr = {0}; 13844 int max_vnics, max_rss_ctxs; 13845 13846 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && 13847 !BNXT_SUPPORTS_NTUPLE_VNIC(bp)) 13848 return bnxt_rfs_supported(bp); 13849 13850 if (!bnxt_can_reserve_rings(bp) || !bp->rx_nr_rings) 13851 return false; 13852 13853 hwr.grp = bp->rx_nr_rings; 13854 hwr.vnic = bnxt_get_total_vnics(bp, bp->rx_nr_rings); 13855 if (new_rss_ctx) 13856 hwr.vnic++; 13857 hwr.rss_ctx = bnxt_get_total_rss_ctxs(bp, &hwr); 13858 max_vnics = bnxt_get_max_func_vnics(bp); 13859 max_rss_ctxs = bnxt_get_max_func_rss_ctxs(bp); 13860 13861 if (hwr.vnic > max_vnics || hwr.rss_ctx > max_rss_ctxs) { 13862 if (bp->rx_nr_rings > 1) 13863 netdev_warn(bp->dev, 13864 "Not enough resources to support NTUPLE filters, enough resources for up to %d rx rings\n", 13865 min(max_rss_ctxs - 1, max_vnics - 1)); 13866 return false; 13867 } 13868 13869 if (!BNXT_NEW_RM(bp)) 13870 return true; 13871 13872 /* Do not reduce VNIC and RSS ctx reservations. There is a FW 13873 * issue that will mess up the default VNIC if we reduce the 13874 * reservations. 13875 */ 13876 if (hwr.vnic <= bp->hw_resc.resv_vnics && 13877 hwr.rss_ctx <= bp->hw_resc.resv_rsscos_ctxs) 13878 return true; 13879 13880 bnxt_hwrm_reserve_rings(bp, &hwr); 13881 if (hwr.vnic <= bp->hw_resc.resv_vnics && 13882 hwr.rss_ctx <= bp->hw_resc.resv_rsscos_ctxs) 13883 return true; 13884 13885 netdev_warn(bp->dev, "Unable to reserve resources to support NTUPLE filters.\n"); 13886 hwr.vnic = 1; 13887 hwr.rss_ctx = 0; 13888 bnxt_hwrm_reserve_rings(bp, &hwr); 13889 return false; 13890 } 13891 13892 static netdev_features_t bnxt_fix_features(struct net_device *dev, 13893 netdev_features_t features) 13894 { 13895 struct bnxt *bp = netdev_priv(dev); 13896 netdev_features_t vlan_features; 13897 13898 if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp, false)) 13899 features &= ~NETIF_F_NTUPLE; 13900 13901 if ((features & NETIF_F_GSO_UDP_L4) && 13902 !(bp->flags & BNXT_FLAG_UDP_GSO_CAP) && 13903 bp->tx_ring_size < 2 * BNXT_SW_USO_MAX_DESCS) 13904 features &= ~NETIF_F_GSO_UDP_L4; 13905 13906 if ((bp->flags & BNXT_FLAG_NO_AGG_RINGS) || bp->xdp_prog) 13907 features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); 13908 13909 if (!(features & NETIF_F_GRO)) 13910 features &= ~NETIF_F_GRO_HW; 13911 13912 if (features & NETIF_F_GRO_HW) 13913 features &= ~NETIF_F_LRO; 13914 13915 /* Both CTAG and STAG VLAN acceleration on the RX side have to be 13916 * turned on or off together. 13917 */ 13918 vlan_features = features & BNXT_HW_FEATURE_VLAN_ALL_RX; 13919 if (vlan_features != BNXT_HW_FEATURE_VLAN_ALL_RX) { 13920 if (dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX) 13921 features &= ~BNXT_HW_FEATURE_VLAN_ALL_RX; 13922 else if (vlan_features) 13923 features |= BNXT_HW_FEATURE_VLAN_ALL_RX; 13924 } 13925 #ifdef CONFIG_BNXT_SRIOV 13926 if (BNXT_VF(bp) && bp->vf.vlan) 13927 features &= ~BNXT_HW_FEATURE_VLAN_ALL_RX; 13928 #endif 13929 return features; 13930 } 13931 13932 static int bnxt_reinit_features(struct bnxt *bp, bool irq_re_init, 13933 bool link_re_init, u32 flags, bool update_tpa) 13934 { 13935 bnxt_close_nic(bp, irq_re_init, link_re_init); 13936 bp->flags = flags; 13937 if (update_tpa) 13938 bnxt_set_ring_params(bp); 13939 return bnxt_open_nic(bp, irq_re_init, link_re_init); 13940 } 13941 13942 static int bnxt_set_features(struct net_device *dev, netdev_features_t features) 13943 { 13944 bool update_tpa = false, update_ntuple = false; 13945 struct bnxt *bp = netdev_priv(dev); 13946 u32 flags = bp->flags; 13947 u32 changes; 13948 int rc = 0; 13949 bool re_init = false; 13950 13951 bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2, 13952 bnxt_min_tx_desc_cnt(bp, features)); 13953 13954 flags &= ~BNXT_FLAG_ALL_CONFIG_FEATS; 13955 if (features & NETIF_F_GRO_HW) 13956 flags |= BNXT_FLAG_GRO; 13957 else if (features & NETIF_F_LRO) 13958 flags |= BNXT_FLAG_LRO; 13959 13960 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS) 13961 flags &= ~BNXT_FLAG_TPA; 13962 13963 if (features & BNXT_HW_FEATURE_VLAN_ALL_RX) 13964 flags |= BNXT_FLAG_STRIP_VLAN; 13965 13966 if (features & NETIF_F_NTUPLE) 13967 flags |= BNXT_FLAG_RFS; 13968 else 13969 bnxt_clear_usr_fltrs(bp, true); 13970 13971 changes = flags ^ bp->flags; 13972 if (changes & BNXT_FLAG_TPA) { 13973 update_tpa = true; 13974 if ((bp->flags & BNXT_FLAG_TPA) == 0 || 13975 (flags & BNXT_FLAG_TPA) == 0 || 13976 (bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 13977 re_init = true; 13978 } 13979 13980 if (changes & ~BNXT_FLAG_TPA) 13981 re_init = true; 13982 13983 if (changes & BNXT_FLAG_RFS) 13984 update_ntuple = true; 13985 13986 if (flags != bp->flags) { 13987 u32 old_flags = bp->flags; 13988 13989 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 13990 bp->flags = flags; 13991 if (update_tpa) 13992 bnxt_set_ring_params(bp); 13993 return rc; 13994 } 13995 13996 if (update_ntuple) 13997 return bnxt_reinit_features(bp, true, false, flags, update_tpa); 13998 13999 if (re_init) 14000 return bnxt_reinit_features(bp, false, false, flags, update_tpa); 14001 14002 if (update_tpa) { 14003 bp->flags = flags; 14004 rc = bnxt_set_tpa(bp, 14005 (flags & BNXT_FLAG_TPA) ? 14006 true : false); 14007 if (rc) 14008 bp->flags = old_flags; 14009 } 14010 } 14011 return rc; 14012 } 14013 14014 static bool bnxt_exthdr_check(struct bnxt *bp, struct sk_buff *skb, int nw_off, 14015 u8 **nextp) 14016 { 14017 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + nw_off); 14018 int hdr_count = 0; 14019 u8 *nexthdr; 14020 int start; 14021 14022 /* Check that there are at most 2 IPv6 extension headers, no 14023 * fragment header, and each is <= 64 bytes. 14024 */ 14025 start = nw_off + sizeof(*ip6h); 14026 nexthdr = &ip6h->nexthdr; 14027 while (ipv6_ext_hdr(*nexthdr)) { 14028 struct ipv6_opt_hdr *hp; 14029 int hdrlen; 14030 14031 if (hdr_count >= 3 || *nexthdr == NEXTHDR_NONE || 14032 *nexthdr == NEXTHDR_FRAGMENT) 14033 return false; 14034 hp = __skb_header_pointer(NULL, start, sizeof(*hp), skb->data, 14035 skb_headlen(skb), NULL); 14036 if (!hp) 14037 return false; 14038 if (*nexthdr == NEXTHDR_AUTH) 14039 hdrlen = ipv6_authlen(hp); 14040 else 14041 hdrlen = ipv6_optlen(hp); 14042 14043 if (hdrlen > 64) 14044 return false; 14045 14046 hdr_count++; 14047 nexthdr = &hp->nexthdr; 14048 start += hdrlen; 14049 } 14050 if (nextp) { 14051 /* Caller will check inner protocol */ 14052 if (skb->encapsulation) { 14053 *nextp = nexthdr; 14054 return true; 14055 } 14056 *nextp = NULL; 14057 } 14058 /* Only support TCP/UDP for non-tunneled ipv6 and inner ipv6 */ 14059 return *nexthdr == IPPROTO_TCP || *nexthdr == IPPROTO_UDP; 14060 } 14061 14062 /* For UDP, we can only handle 1 Vxlan port and 1 Geneve port. */ 14063 static bool bnxt_udp_tunl_check(struct bnxt *bp, struct sk_buff *skb) 14064 { 14065 struct udphdr *uh = udp_hdr(skb); 14066 __be16 udp_port = uh->dest; 14067 14068 if (udp_port != bp->vxlan_port && udp_port != bp->nge_port && 14069 udp_port != bp->vxlan_gpe_port) 14070 return false; 14071 if (skb->inner_protocol == htons(ETH_P_TEB)) { 14072 struct ethhdr *eh = inner_eth_hdr(skb); 14073 14074 switch (eh->h_proto) { 14075 case htons(ETH_P_IP): 14076 return true; 14077 case htons(ETH_P_IPV6): 14078 return bnxt_exthdr_check(bp, skb, 14079 skb_inner_network_offset(skb), 14080 NULL); 14081 } 14082 } else if (skb->inner_protocol == htons(ETH_P_IP)) { 14083 return true; 14084 } else if (skb->inner_protocol == htons(ETH_P_IPV6)) { 14085 return bnxt_exthdr_check(bp, skb, skb_inner_network_offset(skb), 14086 NULL); 14087 } 14088 return false; 14089 } 14090 14091 static bool bnxt_tunl_check(struct bnxt *bp, struct sk_buff *skb, u8 l4_proto) 14092 { 14093 switch (l4_proto) { 14094 case IPPROTO_UDP: 14095 return bnxt_udp_tunl_check(bp, skb); 14096 case IPPROTO_IPIP: 14097 return true; 14098 case IPPROTO_GRE: { 14099 switch (skb->inner_protocol) { 14100 default: 14101 return false; 14102 case htons(ETH_P_IP): 14103 return true; 14104 case htons(ETH_P_IPV6): 14105 fallthrough; 14106 } 14107 } 14108 case IPPROTO_IPV6: 14109 /* Check ext headers of inner ipv6 */ 14110 return bnxt_exthdr_check(bp, skb, skb_inner_network_offset(skb), 14111 NULL); 14112 } 14113 return false; 14114 } 14115 14116 static netdev_features_t bnxt_features_check(struct sk_buff *skb, 14117 struct net_device *dev, 14118 netdev_features_t features) 14119 { 14120 struct bnxt *bp = netdev_priv(dev); 14121 u8 *l4_proto; 14122 14123 features = vlan_features_check(skb, features); 14124 switch (vlan_get_protocol(skb)) { 14125 case htons(ETH_P_IP): 14126 if (!skb->encapsulation) 14127 return features; 14128 l4_proto = &ip_hdr(skb)->protocol; 14129 if (bnxt_tunl_check(bp, skb, *l4_proto)) 14130 return features; 14131 break; 14132 case htons(ETH_P_IPV6): 14133 if (!bnxt_exthdr_check(bp, skb, skb_network_offset(skb), 14134 &l4_proto)) 14135 break; 14136 if (!l4_proto || bnxt_tunl_check(bp, skb, *l4_proto)) 14137 return features; 14138 break; 14139 } 14140 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); 14141 } 14142 14143 int bnxt_dbg_hwrm_rd_reg(struct bnxt *bp, u32 reg_off, u16 num_words, 14144 u32 *reg_buf) 14145 { 14146 struct hwrm_dbg_read_direct_output *resp; 14147 struct hwrm_dbg_read_direct_input *req; 14148 __le32 *dbg_reg_buf; 14149 dma_addr_t mapping; 14150 int rc, i; 14151 14152 rc = hwrm_req_init(bp, req, HWRM_DBG_READ_DIRECT); 14153 if (rc) 14154 return rc; 14155 14156 dbg_reg_buf = hwrm_req_dma_slice(bp, req, num_words * 4, 14157 &mapping); 14158 if (!dbg_reg_buf) { 14159 rc = -ENOMEM; 14160 goto dbg_rd_reg_exit; 14161 } 14162 14163 req->host_dest_addr = cpu_to_le64(mapping); 14164 14165 resp = hwrm_req_hold(bp, req); 14166 req->read_addr = cpu_to_le32(reg_off + CHIMP_REG_VIEW_ADDR); 14167 req->read_len32 = cpu_to_le32(num_words); 14168 14169 rc = hwrm_req_send(bp, req); 14170 if (rc || resp->error_code) { 14171 rc = -EIO; 14172 goto dbg_rd_reg_exit; 14173 } 14174 for (i = 0; i < num_words; i++) 14175 reg_buf[i] = le32_to_cpu(dbg_reg_buf[i]); 14176 14177 dbg_rd_reg_exit: 14178 hwrm_req_drop(bp, req); 14179 return rc; 14180 } 14181 14182 static int bnxt_dbg_hwrm_ring_info_get(struct bnxt *bp, u8 ring_type, 14183 u32 ring_id, u32 *prod, u32 *cons) 14184 { 14185 struct hwrm_dbg_ring_info_get_output *resp; 14186 struct hwrm_dbg_ring_info_get_input *req; 14187 int rc; 14188 14189 rc = hwrm_req_init(bp, req, HWRM_DBG_RING_INFO_GET); 14190 if (rc) 14191 return rc; 14192 14193 req->ring_type = ring_type; 14194 req->fw_ring_id = cpu_to_le32(ring_id); 14195 resp = hwrm_req_hold(bp, req); 14196 rc = hwrm_req_send(bp, req); 14197 if (!rc) { 14198 *prod = le32_to_cpu(resp->producer_index); 14199 *cons = le32_to_cpu(resp->consumer_index); 14200 } 14201 hwrm_req_drop(bp, req); 14202 return rc; 14203 } 14204 14205 static void bnxt_dump_tx_sw_state(struct bnxt_napi *bnapi) 14206 { 14207 struct bnxt_tx_ring_info *txr; 14208 int i = bnapi->index, j; 14209 14210 bnxt_for_each_napi_tx(j, bnapi, txr) 14211 netdev_info(bnapi->bp->dev, "[%d.%d]: tx{fw_ring: %d prod: %x cons: %x}\n", 14212 i, j, txr->tx_ring_struct.fw_ring_id, txr->tx_prod, 14213 txr->tx_cons); 14214 } 14215 14216 static void bnxt_dump_rx_sw_state(struct bnxt_napi *bnapi) 14217 { 14218 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 14219 int i = bnapi->index; 14220 14221 if (!rxr) 14222 return; 14223 14224 netdev_info(bnapi->bp->dev, "[%d]: rx{fw_ring: %d prod: %x} rx_agg{fw_ring: %d agg_prod: %x sw_agg_prod: %x}\n", 14225 i, rxr->rx_ring_struct.fw_ring_id, rxr->rx_prod, 14226 rxr->rx_agg_ring_struct.fw_ring_id, rxr->rx_agg_prod, 14227 rxr->rx_sw_agg_prod); 14228 } 14229 14230 static void bnxt_dump_cp_sw_state(struct bnxt_napi *bnapi) 14231 { 14232 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring, *cpr2; 14233 int i = bnapi->index, j; 14234 14235 netdev_info(bnapi->bp->dev, "[%d]: cp{fw_ring: %d raw_cons: %x}\n", 14236 i, cpr->cp_ring_struct.fw_ring_id, cpr->cp_raw_cons); 14237 for (j = 0; j < cpr->cp_ring_count; j++) { 14238 cpr2 = &cpr->cp_ring_arr[j]; 14239 if (!cpr2->bnapi) 14240 continue; 14241 netdev_info(bnapi->bp->dev, "[%d.%d]: cp{fw_ring: %d raw_cons: %x}\n", 14242 i, j, cpr2->cp_ring_struct.fw_ring_id, 14243 cpr2->cp_raw_cons); 14244 } 14245 } 14246 14247 static void bnxt_dbg_dump_states(struct bnxt *bp) 14248 { 14249 int i; 14250 struct bnxt_napi *bnapi; 14251 14252 for (i = 0; i < bp->cp_nr_rings; i++) { 14253 bnapi = bp->bnapi[i]; 14254 if (netif_msg_drv(bp)) { 14255 bnxt_dump_tx_sw_state(bnapi); 14256 bnxt_dump_rx_sw_state(bnapi); 14257 bnxt_dump_cp_sw_state(bnapi); 14258 } 14259 } 14260 } 14261 14262 static int bnxt_hwrm_rx_ring_reset(struct bnxt *bp, int ring_nr) 14263 { 14264 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr]; 14265 struct hwrm_ring_reset_input *req; 14266 struct bnxt_napi *bnapi = rxr->bnapi; 14267 struct bnxt_cp_ring_info *cpr; 14268 u16 cp_ring_id; 14269 int rc; 14270 14271 rc = hwrm_req_init(bp, req, HWRM_RING_RESET); 14272 if (rc) 14273 return rc; 14274 14275 cpr = &bnapi->cp_ring; 14276 cp_ring_id = cpr->cp_ring_struct.fw_ring_id; 14277 req->cmpl_ring = cpu_to_le16(cp_ring_id); 14278 req->ring_type = RING_RESET_REQ_RING_TYPE_RX_RING_GRP; 14279 req->ring_id = cpu_to_le16(bp->grp_info[bnapi->index].fw_grp_id); 14280 return hwrm_req_send_silent(bp, req); 14281 } 14282 14283 static void bnxt_reset_task(struct bnxt *bp, bool silent) 14284 { 14285 if (!silent) 14286 bnxt_dbg_dump_states(bp); 14287 if (netif_running(bp->dev)) { 14288 bnxt_close_nic(bp, !silent, false); 14289 bnxt_open_nic(bp, !silent, false); 14290 } 14291 } 14292 14293 static void bnxt_tx_timeout(struct net_device *dev, unsigned int txqueue) 14294 { 14295 struct bnxt *bp = netdev_priv(dev); 14296 14297 netdev_err(bp->dev, "TX timeout detected, starting reset task!\n"); 14298 bnxt_queue_sp_work(bp, BNXT_RESET_TASK_SP_EVENT); 14299 } 14300 14301 static void bnxt_fw_health_check(struct bnxt *bp) 14302 { 14303 struct bnxt_fw_health *fw_health = bp->fw_health; 14304 struct pci_dev *pdev = bp->pdev; 14305 u32 val; 14306 14307 if (!fw_health->enabled || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 14308 return; 14309 14310 /* Make sure it is enabled before checking the tmr_counter. */ 14311 smp_rmb(); 14312 if (fw_health->tmr_counter) { 14313 fw_health->tmr_counter--; 14314 return; 14315 } 14316 14317 val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); 14318 if (val == fw_health->last_fw_heartbeat && pci_device_is_present(pdev)) { 14319 fw_health->arrests++; 14320 goto fw_reset; 14321 } 14322 14323 fw_health->last_fw_heartbeat = val; 14324 14325 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 14326 if (val != fw_health->last_fw_reset_cnt && pci_device_is_present(pdev)) { 14327 fw_health->discoveries++; 14328 goto fw_reset; 14329 } 14330 14331 fw_health->tmr_counter = fw_health->tmr_multiplier; 14332 return; 14333 14334 fw_reset: 14335 bnxt_queue_sp_work(bp, BNXT_FW_EXCEPTION_SP_EVENT); 14336 } 14337 14338 static void bnxt_timer(struct timer_list *t) 14339 { 14340 struct bnxt *bp = timer_container_of(bp, t, timer); 14341 struct net_device *dev = bp->dev; 14342 14343 if (!netif_running(dev) || !test_bit(BNXT_STATE_OPEN, &bp->state)) 14344 return; 14345 14346 if (atomic_read(&bp->intr_sem) != 0) 14347 goto bnxt_restart_timer; 14348 14349 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) 14350 bnxt_fw_health_check(bp); 14351 14352 if (BNXT_LINK_IS_UP(bp) && bp->stats_coal_ticks) 14353 bnxt_queue_sp_work(bp, BNXT_PERIODIC_STATS_SP_EVENT); 14354 14355 if (bnxt_tc_flower_enabled(bp)) 14356 bnxt_queue_sp_work(bp, BNXT_FLOW_STATS_SP_EVENT); 14357 14358 #ifdef CONFIG_RFS_ACCEL 14359 if ((bp->flags & BNXT_FLAG_RFS) && bp->ntp_fltr_count) 14360 bnxt_queue_sp_work(bp, BNXT_RX_NTP_FLTR_SP_EVENT); 14361 #endif /*CONFIG_RFS_ACCEL*/ 14362 14363 if (bp->link_info.phy_retry) { 14364 if (time_after(jiffies, bp->link_info.phy_retry_expires)) { 14365 bp->link_info.phy_retry = false; 14366 netdev_warn(bp->dev, "failed to update phy settings after maximum retries.\n"); 14367 } else { 14368 bnxt_queue_sp_work(bp, BNXT_UPDATE_PHY_SP_EVENT); 14369 } 14370 } 14371 14372 if ((BNXT_CHIP_P5(bp)) && !bp->chip_rev && netif_carrier_ok(dev)) 14373 bnxt_queue_sp_work(bp, BNXT_RING_COAL_NOW_SP_EVENT); 14374 14375 bnxt_restart_timer: 14376 mod_timer(&bp->timer, jiffies + bp->current_interval); 14377 } 14378 14379 static void bnxt_lock_sp(struct bnxt *bp) 14380 { 14381 /* We are called from bnxt_sp_task which has BNXT_STATE_IN_SP_TASK 14382 * set. If the device is being closed, bnxt_close() may be holding 14383 * netdev instance lock and waiting for BNXT_STATE_IN_SP_TASK to clear. 14384 * So we must clear BNXT_STATE_IN_SP_TASK before holding netdev 14385 * instance lock. 14386 */ 14387 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 14388 netdev_lock(bp->dev); 14389 } 14390 14391 static void bnxt_unlock_sp(struct bnxt *bp) 14392 { 14393 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 14394 netdev_unlock(bp->dev); 14395 } 14396 14397 /* Same as bnxt_lock_sp() with additional rtnl_lock */ 14398 static void bnxt_rtnl_lock_sp(struct bnxt *bp) 14399 { 14400 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 14401 rtnl_lock(); 14402 netdev_lock(bp->dev); 14403 } 14404 14405 static void bnxt_rtnl_unlock_sp(struct bnxt *bp) 14406 { 14407 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 14408 netdev_unlock(bp->dev); 14409 rtnl_unlock(); 14410 } 14411 14412 /* Only called from bnxt_sp_task() */ 14413 static void bnxt_reset(struct bnxt *bp, bool silent) 14414 { 14415 bnxt_rtnl_lock_sp(bp); 14416 if (test_bit(BNXT_STATE_OPEN, &bp->state)) 14417 bnxt_reset_task(bp, silent); 14418 bnxt_rtnl_unlock_sp(bp); 14419 } 14420 14421 /* Only called from bnxt_sp_task() */ 14422 static void bnxt_rx_ring_reset(struct bnxt *bp) 14423 { 14424 int i; 14425 14426 bnxt_rtnl_lock_sp(bp); 14427 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 14428 bnxt_rtnl_unlock_sp(bp); 14429 return; 14430 } 14431 /* Disable and flush TPA before resetting the RX ring */ 14432 if (bp->flags & BNXT_FLAG_TPA) 14433 bnxt_set_tpa(bp, false); 14434 for (i = 0; i < bp->rx_nr_rings; i++) { 14435 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 14436 struct bnxt_cp_ring_info *cpr; 14437 int rc; 14438 14439 if (!rxr->bnapi->in_reset) 14440 continue; 14441 14442 rc = bnxt_hwrm_rx_ring_reset(bp, i); 14443 if (rc) { 14444 if (rc == -EINVAL || rc == -EOPNOTSUPP) 14445 netdev_info_once(bp->dev, "RX ring reset not supported by firmware, falling back to global reset\n"); 14446 else 14447 netdev_warn(bp->dev, "RX ring reset failed, rc = %d, falling back to global reset\n", 14448 rc); 14449 bnxt_reset_task(bp, true); 14450 break; 14451 } 14452 bnxt_free_one_rx_ring_skbs(bp, rxr); 14453 rxr->rx_prod = 0; 14454 rxr->rx_agg_prod = 0; 14455 rxr->rx_sw_agg_prod = 0; 14456 rxr->rx_next_cons = 0; 14457 rxr->bnapi->in_reset = false; 14458 bnxt_alloc_one_rx_ring(bp, i); 14459 cpr = &rxr->bnapi->cp_ring; 14460 cpr->sw_stats->rx.rx_resets++; 14461 if (bp->flags & BNXT_FLAG_AGG_RINGS) 14462 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 14463 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 14464 } 14465 if (bp->flags & BNXT_FLAG_TPA) 14466 bnxt_set_tpa(bp, true); 14467 bnxt_rtnl_unlock_sp(bp); 14468 } 14469 14470 static void bnxt_fw_fatal_close(struct bnxt *bp) 14471 { 14472 bnxt_tx_disable(bp); 14473 bnxt_disable_napi(bp); 14474 bnxt_disable_int_sync(bp); 14475 bnxt_free_irq(bp); 14476 bnxt_clear_int_mode(bp); 14477 pci_disable_device(bp->pdev); 14478 } 14479 14480 static void bnxt_fw_reset_close(struct bnxt *bp) 14481 { 14482 /* When firmware is in fatal state, quiesce device and disable 14483 * bus master to prevent any potential bad DMAs before freeing 14484 * kernel memory. 14485 */ 14486 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) { 14487 u16 val = 0; 14488 14489 pci_read_config_word(bp->pdev, PCI_SUBSYSTEM_ID, &val); 14490 if (val == 0xffff) 14491 bp->fw_reset_min_dsecs = 0; 14492 bnxt_fw_fatal_close(bp); 14493 } 14494 __bnxt_close_nic(bp, true, false); 14495 bnxt_vf_reps_free(bp); 14496 bnxt_clear_int_mode(bp); 14497 bnxt_hwrm_func_drv_unrgtr(bp); 14498 if (pci_is_enabled(bp->pdev)) 14499 pci_disable_device(bp->pdev); 14500 bnxt_free_ctx_mem(bp, false); 14501 } 14502 14503 static bool is_bnxt_fw_ok(struct bnxt *bp) 14504 { 14505 struct bnxt_fw_health *fw_health = bp->fw_health; 14506 bool no_heartbeat = false, has_reset = false; 14507 u32 val; 14508 14509 val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); 14510 if (val == fw_health->last_fw_heartbeat) 14511 no_heartbeat = true; 14512 14513 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 14514 if (val != fw_health->last_fw_reset_cnt) 14515 has_reset = true; 14516 14517 if (!no_heartbeat && has_reset) 14518 return true; 14519 14520 return false; 14521 } 14522 14523 /* netdev instance lock is acquired before calling this function */ 14524 static void bnxt_force_fw_reset(struct bnxt *bp) 14525 { 14526 struct bnxt_fw_health *fw_health = bp->fw_health; 14527 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 14528 u32 wait_dsecs; 14529 14530 if (!test_bit(BNXT_STATE_OPEN, &bp->state) || 14531 test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 14532 return; 14533 14534 /* we have to serialize with bnxt_refclk_read()*/ 14535 if (ptp) { 14536 unsigned long flags; 14537 14538 write_seqlock_irqsave(&ptp->ptp_lock, flags); 14539 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 14540 write_sequnlock_irqrestore(&ptp->ptp_lock, flags); 14541 } else { 14542 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 14543 } 14544 bnxt_fw_reset_close(bp); 14545 wait_dsecs = fw_health->master_func_wait_dsecs; 14546 if (fw_health->primary) { 14547 if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) 14548 wait_dsecs = 0; 14549 bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW; 14550 } else { 14551 bp->fw_reset_timestamp = jiffies + wait_dsecs * HZ / 10; 14552 wait_dsecs = fw_health->normal_func_wait_dsecs; 14553 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 14554 } 14555 14556 bp->fw_reset_min_dsecs = fw_health->post_reset_wait_dsecs; 14557 bp->fw_reset_max_dsecs = fw_health->post_reset_max_wait_dsecs; 14558 bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10); 14559 } 14560 14561 void bnxt_fw_exception(struct bnxt *bp) 14562 { 14563 netdev_warn(bp->dev, "Detected firmware fatal condition, initiating reset\n"); 14564 set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); 14565 bnxt_ulp_stop(bp); 14566 bnxt_lock_sp(bp); 14567 bnxt_force_fw_reset(bp); 14568 bnxt_unlock_sp(bp); 14569 } 14570 14571 /* Returns the number of registered VFs, or 1 if VF configuration is pending, or 14572 * < 0 on error. 14573 */ 14574 static int bnxt_get_registered_vfs(struct bnxt *bp) 14575 { 14576 #ifdef CONFIG_BNXT_SRIOV 14577 int rc; 14578 14579 if (!BNXT_PF(bp)) 14580 return 0; 14581 14582 rc = bnxt_hwrm_func_qcfg(bp); 14583 if (rc) { 14584 netdev_err(bp->dev, "func_qcfg cmd failed, rc = %d\n", rc); 14585 return rc; 14586 } 14587 if (bp->pf.registered_vfs) 14588 return bp->pf.registered_vfs; 14589 if (bp->sriov_cfg) 14590 return 1; 14591 #endif 14592 return 0; 14593 } 14594 14595 void bnxt_fw_reset(struct bnxt *bp) 14596 { 14597 bnxt_ulp_stop(bp); 14598 bnxt_lock_sp(bp); 14599 if (test_bit(BNXT_STATE_OPEN, &bp->state) && 14600 !test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 14601 struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; 14602 int n = 0, tmo; 14603 14604 /* we have to serialize with bnxt_refclk_read()*/ 14605 if (ptp) { 14606 unsigned long flags; 14607 14608 write_seqlock_irqsave(&ptp->ptp_lock, flags); 14609 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 14610 write_sequnlock_irqrestore(&ptp->ptp_lock, flags); 14611 } else { 14612 set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 14613 } 14614 if (bp->pf.active_vfs && 14615 !test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) 14616 n = bnxt_get_registered_vfs(bp); 14617 if (n < 0) { 14618 netdev_err(bp->dev, "Firmware reset aborted, rc = %d\n", 14619 n); 14620 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 14621 netif_close(bp->dev); 14622 goto fw_reset_exit; 14623 } else if (n > 0) { 14624 u16 vf_tmo_dsecs = n * 10; 14625 14626 if (bp->fw_reset_max_dsecs < vf_tmo_dsecs) 14627 bp->fw_reset_max_dsecs = vf_tmo_dsecs; 14628 bp->fw_reset_state = 14629 BNXT_FW_RESET_STATE_POLL_VF; 14630 bnxt_queue_fw_reset_work(bp, HZ / 10); 14631 goto fw_reset_exit; 14632 } 14633 bnxt_fw_reset_close(bp); 14634 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { 14635 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN; 14636 tmo = HZ / 10; 14637 } else { 14638 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 14639 tmo = bp->fw_reset_min_dsecs * HZ / 10; 14640 } 14641 bnxt_queue_fw_reset_work(bp, tmo); 14642 } 14643 fw_reset_exit: 14644 bnxt_unlock_sp(bp); 14645 } 14646 14647 static void bnxt_chk_missed_irq(struct bnxt *bp) 14648 { 14649 int i; 14650 14651 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 14652 return; 14653 14654 for (i = 0; i < bp->cp_nr_rings; i++) { 14655 struct bnxt_napi *bnapi = bp->bnapi[i]; 14656 struct bnxt_cp_ring_info *cpr; 14657 u32 fw_ring_id; 14658 int j; 14659 14660 if (!bnapi) 14661 continue; 14662 14663 cpr = &bnapi->cp_ring; 14664 for (j = 0; j < cpr->cp_ring_count; j++) { 14665 struct bnxt_cp_ring_info *cpr2 = &cpr->cp_ring_arr[j]; 14666 u32 val[2]; 14667 14668 if (cpr2->has_more_work || !bnxt_has_work(bp, cpr2)) 14669 continue; 14670 14671 if (cpr2->cp_raw_cons != cpr2->last_cp_raw_cons) { 14672 cpr2->last_cp_raw_cons = cpr2->cp_raw_cons; 14673 continue; 14674 } 14675 fw_ring_id = cpr2->cp_ring_struct.fw_ring_id; 14676 bnxt_dbg_hwrm_ring_info_get(bp, 14677 DBG_RING_INFO_GET_REQ_RING_TYPE_L2_CMPL, 14678 fw_ring_id, &val[0], &val[1]); 14679 cpr->sw_stats->cmn.missed_irqs++; 14680 } 14681 } 14682 } 14683 14684 static void bnxt_cfg_ntp_filters(struct bnxt *); 14685 14686 static void bnxt_init_ethtool_link_settings(struct bnxt *bp) 14687 { 14688 struct bnxt_link_info *link_info = &bp->link_info; 14689 14690 if (BNXT_AUTO_MODE(link_info->auto_mode)) { 14691 link_info->autoneg = BNXT_AUTONEG_SPEED; 14692 if (bp->hwrm_spec_code >= 0x10201) { 14693 if (link_info->auto_pause_setting & 14694 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE) 14695 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; 14696 } else { 14697 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; 14698 } 14699 bnxt_set_auto_speed(link_info); 14700 } else { 14701 bnxt_set_force_speed(link_info); 14702 link_info->req_duplex = link_info->duplex_setting; 14703 } 14704 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) 14705 link_info->req_flow_ctrl = 14706 link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH; 14707 else 14708 link_info->req_flow_ctrl = link_info->force_pause_setting; 14709 } 14710 14711 static void bnxt_fw_echo_reply(struct bnxt *bp) 14712 { 14713 struct bnxt_fw_health *fw_health = bp->fw_health; 14714 struct hwrm_func_echo_response_input *req; 14715 int rc; 14716 14717 rc = hwrm_req_init(bp, req, HWRM_FUNC_ECHO_RESPONSE); 14718 if (rc) 14719 return; 14720 req->event_data1 = cpu_to_le32(fw_health->echo_req_data1); 14721 req->event_data2 = cpu_to_le32(fw_health->echo_req_data2); 14722 hwrm_req_send(bp, req); 14723 } 14724 14725 static void bnxt_ulp_restart(struct bnxt *bp) 14726 { 14727 bnxt_ulp_stop(bp); 14728 bnxt_ulp_start(bp); 14729 } 14730 14731 static void bnxt_sp_task(struct work_struct *work) 14732 { 14733 struct bnxt *bp = container_of(work, struct bnxt, sp_task); 14734 14735 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 14736 smp_mb__after_atomic(); 14737 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 14738 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 14739 return; 14740 } 14741 14742 if (test_and_clear_bit(BNXT_RESTART_ULP_SP_EVENT, &bp->sp_event)) { 14743 bnxt_ulp_restart(bp); 14744 bnxt_reenable_sriov(bp); 14745 } 14746 14747 if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event)) 14748 bnxt_cfg_ntp_filters(bp); 14749 if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event)) 14750 bnxt_hwrm_exec_fwd_req(bp); 14751 if (test_and_clear_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event)) 14752 netdev_info(bp->dev, "Receive PF driver unload event!\n"); 14753 if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) { 14754 bnxt_hwrm_port_qstats(bp, 0); 14755 bnxt_hwrm_port_qstats_ext(bp, 0); 14756 bnxt_accumulate_all_stats(bp); 14757 } 14758 14759 if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) { 14760 int rc; 14761 14762 mutex_lock(&bp->link_lock); 14763 if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, 14764 &bp->sp_event)) 14765 bnxt_hwrm_phy_qcaps(bp); 14766 14767 rc = bnxt_update_link(bp, true); 14768 if (rc) 14769 netdev_err(bp->dev, "SP task can't update link (rc: %x)\n", 14770 rc); 14771 14772 if (test_and_clear_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT, 14773 &bp->sp_event)) 14774 bnxt_init_ethtool_link_settings(bp); 14775 mutex_unlock(&bp->link_lock); 14776 } 14777 if (test_and_clear_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event)) { 14778 int rc; 14779 14780 mutex_lock(&bp->link_lock); 14781 rc = bnxt_update_phy_setting(bp); 14782 mutex_unlock(&bp->link_lock); 14783 if (rc) { 14784 netdev_warn(bp->dev, "update phy settings retry failed\n"); 14785 } else { 14786 bp->link_info.phy_retry = false; 14787 netdev_info(bp->dev, "update phy settings retry succeeded\n"); 14788 } 14789 } 14790 if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) { 14791 mutex_lock(&bp->link_lock); 14792 bnxt_get_port_module_status(bp); 14793 mutex_unlock(&bp->link_lock); 14794 } 14795 14796 if (test_and_clear_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event)) 14797 bnxt_tc_flow_stats_work(bp); 14798 14799 if (test_and_clear_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event)) 14800 bnxt_chk_missed_irq(bp); 14801 14802 if (test_and_clear_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event)) 14803 bnxt_fw_echo_reply(bp); 14804 14805 if (test_and_clear_bit(BNXT_THERMAL_THRESHOLD_SP_EVENT, &bp->sp_event)) 14806 bnxt_hwmon_notify_event(bp); 14807 14808 /* These functions below will clear BNXT_STATE_IN_SP_TASK. They 14809 * must be the last functions to be called before exiting. 14810 */ 14811 if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event)) 14812 bnxt_reset(bp, false); 14813 14814 if (test_and_clear_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event)) 14815 bnxt_reset(bp, true); 14816 14817 if (test_and_clear_bit(BNXT_RST_RING_SP_EVENT, &bp->sp_event)) 14818 bnxt_rx_ring_reset(bp); 14819 14820 if (test_and_clear_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event)) { 14821 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) || 14822 test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state)) 14823 bnxt_devlink_health_fw_report(bp); 14824 else 14825 bnxt_fw_reset(bp); 14826 } 14827 14828 if (test_and_clear_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event)) { 14829 if (!is_bnxt_fw_ok(bp)) 14830 bnxt_devlink_health_fw_report(bp); 14831 } 14832 14833 smp_mb__before_atomic(); 14834 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 14835 } 14836 14837 static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, 14838 int *max_cp); 14839 14840 /* Under netdev instance lock */ 14841 int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs, 14842 int tx_xdp) 14843 { 14844 int max_rx, max_tx, max_cp, tx_sets = 1, tx_cp; 14845 struct bnxt_hw_rings hwr = {0}; 14846 int rx_rings = rx; 14847 int rc; 14848 14849 if (tcs) 14850 tx_sets = tcs; 14851 14852 _bnxt_get_max_rings(bp, &max_rx, &max_tx, &max_cp); 14853 14854 if (max_rx < rx_rings) 14855 return -ENOMEM; 14856 14857 if (bp->flags & BNXT_FLAG_AGG_RINGS) 14858 rx_rings <<= 1; 14859 14860 hwr.rx = rx_rings; 14861 hwr.tx = tx * tx_sets + tx_xdp; 14862 if (max_tx < hwr.tx) 14863 return -ENOMEM; 14864 14865 hwr.vnic = bnxt_get_total_vnics(bp, rx); 14866 14867 tx_cp = __bnxt_num_tx_to_cp(bp, hwr.tx, tx_sets, tx_xdp); 14868 hwr.cp = sh ? max_t(int, tx_cp, rx) : tx_cp + rx; 14869 if (max_cp < hwr.cp) 14870 return -ENOMEM; 14871 hwr.stat = hwr.cp; 14872 if (BNXT_NEW_RM(bp)) { 14873 hwr.cp += bnxt_get_ulp_msix_num_in_use(bp); 14874 hwr.stat += bnxt_get_ulp_stat_ctxs_in_use(bp); 14875 hwr.grp = rx; 14876 hwr.rss_ctx = bnxt_get_total_rss_ctxs(bp, &hwr); 14877 } 14878 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) 14879 hwr.cp_p5 = hwr.tx + rx; 14880 rc = bnxt_hwrm_check_rings(bp, &hwr); 14881 if (!rc && pci_msix_can_alloc_dyn(bp->pdev)) { 14882 if (!bnxt_ulp_registered(bp->edev[BNXT_AUXDEV_RDMA])) { 14883 hwr.cp += bnxt_get_ulp_msix_num(bp); 14884 hwr.cp = min_t(int, hwr.cp, bnxt_get_max_func_irqs(bp)); 14885 } 14886 if (hwr.cp > bp->total_irqs) { 14887 int total_msix = bnxt_change_msix(bp, hwr.cp); 14888 14889 if (total_msix < hwr.cp) { 14890 netdev_warn(bp->dev, "Unable to allocate %d MSIX vectors, maximum available %d\n", 14891 hwr.cp, total_msix); 14892 rc = -ENOSPC; 14893 } 14894 } 14895 } 14896 return rc; 14897 } 14898 14899 static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev) 14900 { 14901 if (bp->bar2) { 14902 pci_iounmap(pdev, bp->bar2); 14903 bp->bar2 = NULL; 14904 } 14905 14906 if (bp->bar1) { 14907 pci_iounmap(pdev, bp->bar1); 14908 bp->bar1 = NULL; 14909 } 14910 14911 if (bp->bar0) { 14912 pci_iounmap(pdev, bp->bar0); 14913 bp->bar0 = NULL; 14914 } 14915 } 14916 14917 static void bnxt_cleanup_pci(struct bnxt *bp) 14918 { 14919 bnxt_unmap_bars(bp, bp->pdev); 14920 pci_release_regions(bp->pdev); 14921 if (pci_is_enabled(bp->pdev)) 14922 pci_disable_device(bp->pdev); 14923 } 14924 14925 static void bnxt_init_dflt_coal(struct bnxt *bp) 14926 { 14927 struct bnxt_coal_cap *coal_cap = &bp->coal_cap; 14928 struct bnxt_coal *coal; 14929 u16 flags = 0; 14930 14931 if (coal_cap->cmpl_params & 14932 RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_TIMER_RESET) 14933 flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET; 14934 14935 /* Tick values in micro seconds. 14936 * 1 coal_buf x bufs_per_record = 1 completion record. 14937 */ 14938 coal = &bp->rx_coal; 14939 coal->coal_ticks = 10; 14940 coal->coal_bufs = 30; 14941 coal->coal_ticks_irq = 1; 14942 coal->coal_bufs_irq = 2; 14943 coal->idle_thresh = 50; 14944 coal->bufs_per_record = 2; 14945 coal->budget = 64; /* NAPI budget */ 14946 coal->flags = flags; 14947 14948 coal = &bp->tx_coal; 14949 coal->coal_ticks = 28; 14950 coal->coal_bufs = 30; 14951 coal->coal_ticks_irq = 2; 14952 coal->coal_bufs_irq = 2; 14953 coal->bufs_per_record = 1; 14954 coal->flags = flags; 14955 14956 bp->stats_coal_ticks = BNXT_DEF_STATS_COAL_TICKS; 14957 } 14958 14959 /* FW that pre-reserves 1 VNIC per function */ 14960 static bool bnxt_fw_pre_resv_vnics(struct bnxt *bp) 14961 { 14962 u16 fw_maj = BNXT_FW_MAJ(bp), fw_bld = BNXT_FW_BLD(bp); 14963 14964 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && 14965 (fw_maj > 218 || (fw_maj == 218 && fw_bld >= 18))) 14966 return true; 14967 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && 14968 (fw_maj > 216 || (fw_maj == 216 && fw_bld >= 172))) 14969 return true; 14970 return false; 14971 } 14972 14973 static void bnxt_hwrm_pfcwd_qcaps(struct bnxt *bp) 14974 { 14975 struct hwrm_queue_pfcwd_timeout_qcaps_output *resp; 14976 struct hwrm_queue_pfcwd_timeout_qcaps_input *req; 14977 int rc; 14978 14979 bp->max_pfcwd_tmo_ms = 0; 14980 rc = hwrm_req_init(bp, req, HWRM_QUEUE_PFCWD_TIMEOUT_QCAPS); 14981 if (rc) 14982 return; 14983 resp = hwrm_req_hold(bp, req); 14984 rc = hwrm_req_send_silent(bp, req); 14985 if (!rc) 14986 bp->max_pfcwd_tmo_ms = le16_to_cpu(resp->max_pfcwd_timeout); 14987 hwrm_req_drop(bp, req); 14988 } 14989 14990 static int bnxt_fw_init_one_p1(struct bnxt *bp) 14991 { 14992 int rc; 14993 14994 bp->fw_cap = 0; 14995 rc = bnxt_hwrm_ver_get(bp); 14996 /* FW may be unresponsive after FLR. FLR must complete within 100 msec 14997 * so wait before continuing with recovery. 14998 */ 14999 if (rc) 15000 msleep(100); 15001 bnxt_try_map_fw_health_reg(bp); 15002 if (rc) { 15003 rc = bnxt_try_recover_fw(bp); 15004 if (rc) 15005 return rc; 15006 rc = bnxt_hwrm_ver_get(bp); 15007 if (rc) 15008 return rc; 15009 } 15010 15011 bnxt_nvm_cfg_ver_get(bp); 15012 15013 rc = bnxt_hwrm_func_reset(bp); 15014 if (rc) 15015 return -ENODEV; 15016 15017 bnxt_hwrm_fw_set_time(bp); 15018 return 0; 15019 } 15020 15021 static int bnxt_fw_init_one_p2(struct bnxt *bp) 15022 { 15023 int rc; 15024 15025 /* Get the MAX capabilities for this function */ 15026 rc = bnxt_hwrm_func_qcaps(bp); 15027 if (rc) { 15028 netdev_err(bp->dev, "hwrm query capability failure rc: %x\n", 15029 rc); 15030 return -ENODEV; 15031 } 15032 15033 rc = bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(bp); 15034 if (rc) 15035 netdev_warn(bp->dev, "hwrm query adv flow mgnt failure rc: %d\n", 15036 rc); 15037 15038 if (bnxt_alloc_fw_health(bp)) { 15039 netdev_warn(bp->dev, "no memory for firmware error recovery\n"); 15040 } else { 15041 rc = bnxt_hwrm_error_recovery_qcfg(bp); 15042 if (rc) 15043 netdev_warn(bp->dev, "hwrm query error recovery failure rc: %d\n", 15044 rc); 15045 } 15046 15047 rc = bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false); 15048 if (rc) 15049 return -ENODEV; 15050 15051 rc = bnxt_alloc_crash_dump_mem(bp); 15052 if (rc) 15053 netdev_warn(bp->dev, "crash dump mem alloc failure rc: %d\n", 15054 rc); 15055 if (!rc) { 15056 rc = bnxt_hwrm_crash_dump_mem_cfg(bp); 15057 if (rc) { 15058 bnxt_free_crash_dump_mem(bp); 15059 netdev_warn(bp->dev, 15060 "hwrm crash dump mem failure rc: %d\n", rc); 15061 } 15062 } 15063 15064 if (bnxt_fw_pre_resv_vnics(bp)) 15065 bp->fw_cap |= BNXT_FW_CAP_PRE_RESV_VNICS; 15066 15067 bnxt_hwrm_pfcwd_qcaps(bp); 15068 bnxt_hwrm_func_qcfg(bp); 15069 bnxt_hwrm_vnic_qcaps(bp); 15070 bnxt_hwrm_port_led_qcaps(bp); 15071 bnxt_ethtool_init(bp); 15072 if (bp->fw_cap & BNXT_FW_CAP_PTP) 15073 __bnxt_hwrm_ptp_qcfg(bp); 15074 bnxt_dcb_init(bp); 15075 bnxt_hwmon_init(bp); 15076 return 0; 15077 } 15078 15079 static void bnxt_set_dflt_rss_hash_type(struct bnxt *bp) 15080 { 15081 bp->rss_cap &= ~BNXT_RSS_CAP_UDP_RSS_CAP; 15082 bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 | 15083 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 | 15084 VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 | 15085 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6; 15086 if (bp->rss_cap & BNXT_RSS_CAP_RSS_HASH_TYPE_DELTA) 15087 bp->rss_hash_delta = bp->rss_hash_cfg; 15088 if (BNXT_CHIP_P4_PLUS(bp) && bp->hwrm_spec_code >= 0x10501) { 15089 bp->rss_cap |= BNXT_RSS_CAP_UDP_RSS_CAP; 15090 bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 | 15091 VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6; 15092 } 15093 } 15094 15095 static void bnxt_set_dflt_rfs(struct bnxt *bp) 15096 { 15097 struct net_device *dev = bp->dev; 15098 15099 dev->hw_features &= ~NETIF_F_NTUPLE; 15100 dev->features &= ~NETIF_F_NTUPLE; 15101 bp->flags &= ~BNXT_FLAG_RFS; 15102 if (bnxt_rfs_supported(bp)) { 15103 dev->hw_features |= NETIF_F_NTUPLE; 15104 if (bnxt_rfs_capable(bp, false)) { 15105 bp->flags |= BNXT_FLAG_RFS; 15106 dev->features |= NETIF_F_NTUPLE; 15107 } 15108 } 15109 } 15110 15111 static void bnxt_fw_init_one_p3(struct bnxt *bp) 15112 { 15113 struct pci_dev *pdev = bp->pdev; 15114 15115 bnxt_set_dflt_rss_hash_type(bp); 15116 bnxt_set_dflt_rfs(bp); 15117 15118 bnxt_get_wol_settings(bp); 15119 if (bp->flags & BNXT_FLAG_WOL_CAP) 15120 device_set_wakeup_enable(&pdev->dev, bp->wol); 15121 else 15122 device_set_wakeup_capable(&pdev->dev, false); 15123 15124 bnxt_hwrm_set_cache_line_size(bp, cache_line_size()); 15125 bnxt_hwrm_coal_params_qcaps(bp); 15126 } 15127 15128 static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt); 15129 15130 int bnxt_fw_init_one(struct bnxt *bp) 15131 { 15132 int rc; 15133 15134 rc = bnxt_fw_init_one_p1(bp); 15135 if (rc) { 15136 netdev_err(bp->dev, "Firmware init phase 1 failed\n"); 15137 return rc; 15138 } 15139 rc = bnxt_fw_init_one_p2(bp); 15140 if (rc) { 15141 netdev_err(bp->dev, "Firmware init phase 2 failed\n"); 15142 return rc; 15143 } 15144 rc = bnxt_probe_phy(bp, false); 15145 if (rc) 15146 return rc; 15147 rc = bnxt_approve_mac(bp, bp->dev->dev_addr, false); 15148 if (rc) 15149 return rc; 15150 15151 bnxt_fw_init_one_p3(bp); 15152 return 0; 15153 } 15154 15155 static void bnxt_fw_reset_writel(struct bnxt *bp, int reg_idx) 15156 { 15157 struct bnxt_fw_health *fw_health = bp->fw_health; 15158 u32 reg = fw_health->fw_reset_seq_regs[reg_idx]; 15159 u32 val = fw_health->fw_reset_seq_vals[reg_idx]; 15160 u32 reg_type, reg_off, delay_msecs; 15161 15162 delay_msecs = fw_health->fw_reset_seq_delay_msec[reg_idx]; 15163 reg_type = BNXT_FW_HEALTH_REG_TYPE(reg); 15164 reg_off = BNXT_FW_HEALTH_REG_OFF(reg); 15165 switch (reg_type) { 15166 case BNXT_FW_HEALTH_REG_TYPE_CFG: 15167 pci_write_config_dword(bp->pdev, reg_off, val); 15168 break; 15169 case BNXT_FW_HEALTH_REG_TYPE_GRC: 15170 writel(reg_off & BNXT_GRC_BASE_MASK, 15171 bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 4); 15172 reg_off = (reg_off & BNXT_GRC_OFFSET_MASK) + 0x2000; 15173 fallthrough; 15174 case BNXT_FW_HEALTH_REG_TYPE_BAR0: 15175 writel(val, bp->bar0 + reg_off); 15176 break; 15177 case BNXT_FW_HEALTH_REG_TYPE_BAR1: 15178 writel(val, bp->bar1 + reg_off); 15179 break; 15180 } 15181 if (delay_msecs) { 15182 pci_read_config_dword(bp->pdev, 0, &val); 15183 msleep(delay_msecs); 15184 } 15185 } 15186 15187 bool bnxt_hwrm_reset_permitted(struct bnxt *bp) 15188 { 15189 struct hwrm_func_qcfg_output *resp; 15190 struct hwrm_func_qcfg_input *req; 15191 bool result = true; /* firmware will enforce if unknown */ 15192 15193 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 15194 return result; 15195 15196 if (hwrm_req_init(bp, req, HWRM_FUNC_QCFG)) 15197 return result; 15198 15199 req->fid = cpu_to_le16(0xffff); 15200 resp = hwrm_req_hold(bp, req); 15201 if (!hwrm_req_send(bp, req)) 15202 result = !!(le16_to_cpu(resp->flags) & 15203 FUNC_QCFG_RESP_FLAGS_HOT_RESET_ALLOWED); 15204 hwrm_req_drop(bp, req); 15205 return result; 15206 } 15207 15208 static void bnxt_reset_all(struct bnxt *bp) 15209 { 15210 struct bnxt_fw_health *fw_health = bp->fw_health; 15211 int i, rc; 15212 15213 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { 15214 bnxt_fw_reset_via_optee(bp); 15215 bp->fw_reset_timestamp = jiffies; 15216 return; 15217 } 15218 15219 if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_HOST) { 15220 for (i = 0; i < fw_health->fw_reset_seq_cnt; i++) 15221 bnxt_fw_reset_writel(bp, i); 15222 } else if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) { 15223 struct hwrm_fw_reset_input *req; 15224 15225 rc = hwrm_req_init(bp, req, HWRM_FW_RESET); 15226 if (!rc) { 15227 req->target_id = cpu_to_le16(HWRM_TARGET_ID_KONG); 15228 req->embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP; 15229 req->selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP; 15230 req->flags = FW_RESET_REQ_FLAGS_RESET_GRACEFUL; 15231 rc = hwrm_req_send(bp, req); 15232 } 15233 if (rc != -ENODEV) 15234 netdev_warn(bp->dev, "Unable to reset FW rc=%d\n", rc); 15235 } 15236 bp->fw_reset_timestamp = jiffies; 15237 } 15238 15239 static bool bnxt_fw_reset_timeout(struct bnxt *bp) 15240 { 15241 return time_after(jiffies, bp->fw_reset_timestamp + 15242 (bp->fw_reset_max_dsecs * HZ / 10)); 15243 } 15244 15245 static void bnxt_fw_reset_abort(struct bnxt *bp, int rc) 15246 { 15247 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 15248 if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF) 15249 bnxt_dl_health_fw_status_update(bp, false); 15250 bp->fw_reset_state = BNXT_FW_RESET_STATE_ABORT; 15251 netif_close(bp->dev); 15252 } 15253 15254 static void bnxt_fw_reset_task(struct work_struct *work) 15255 { 15256 struct bnxt *bp = container_of(work, struct bnxt, fw_reset_task.work); 15257 int rc = 0; 15258 15259 if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 15260 netdev_err(bp->dev, "bnxt_fw_reset_task() called when not in fw reset mode!\n"); 15261 return; 15262 } 15263 15264 switch (bp->fw_reset_state) { 15265 case BNXT_FW_RESET_STATE_POLL_VF: { 15266 int n = bnxt_get_registered_vfs(bp); 15267 int tmo; 15268 15269 if (n < 0) { 15270 netdev_err(bp->dev, "Firmware reset aborted, subsequent func_qcfg cmd failed, rc = %d, %d msecs since reset timestamp\n", 15271 n, jiffies_to_msecs(jiffies - 15272 bp->fw_reset_timestamp)); 15273 goto fw_reset_abort; 15274 } else if (n > 0) { 15275 if (bnxt_fw_reset_timeout(bp)) { 15276 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 15277 bp->fw_reset_state = 0; 15278 netdev_err(bp->dev, "Firmware reset aborted, bnxt_get_registered_vfs() returns %d\n", 15279 n); 15280 goto ulp_start; 15281 } 15282 bnxt_queue_fw_reset_work(bp, HZ / 10); 15283 return; 15284 } 15285 bp->fw_reset_timestamp = jiffies; 15286 netdev_lock(bp->dev); 15287 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 15288 bnxt_fw_reset_abort(bp, rc); 15289 netdev_unlock(bp->dev); 15290 goto ulp_start; 15291 } 15292 bnxt_fw_reset_close(bp); 15293 if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { 15294 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN; 15295 tmo = HZ / 10; 15296 } else { 15297 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 15298 tmo = bp->fw_reset_min_dsecs * HZ / 10; 15299 } 15300 netdev_unlock(bp->dev); 15301 bnxt_queue_fw_reset_work(bp, tmo); 15302 return; 15303 } 15304 case BNXT_FW_RESET_STATE_POLL_FW_DOWN: { 15305 u32 val; 15306 15307 val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 15308 if (!(val & BNXT_FW_STATUS_SHUTDOWN) && 15309 !bnxt_fw_reset_timeout(bp)) { 15310 bnxt_queue_fw_reset_work(bp, HZ / 5); 15311 return; 15312 } 15313 15314 if (!bp->fw_health->primary) { 15315 u32 wait_dsecs = bp->fw_health->normal_func_wait_dsecs; 15316 15317 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 15318 bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10); 15319 return; 15320 } 15321 bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW; 15322 } 15323 fallthrough; 15324 case BNXT_FW_RESET_STATE_RESET_FW: 15325 bnxt_reset_all(bp); 15326 bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; 15327 bnxt_queue_fw_reset_work(bp, bp->fw_reset_min_dsecs * HZ / 10); 15328 return; 15329 case BNXT_FW_RESET_STATE_ENABLE_DEV: 15330 bnxt_inv_fw_health_reg(bp); 15331 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) && 15332 !bp->fw_reset_min_dsecs) { 15333 u16 val; 15334 15335 pci_read_config_word(bp->pdev, PCI_SUBSYSTEM_ID, &val); 15336 if (val == 0xffff) { 15337 if (bnxt_fw_reset_timeout(bp)) { 15338 netdev_err(bp->dev, "Firmware reset aborted, PCI config space invalid\n"); 15339 rc = -ETIMEDOUT; 15340 goto fw_reset_abort; 15341 } 15342 bnxt_queue_fw_reset_work(bp, HZ / 1000); 15343 return; 15344 } 15345 } 15346 clear_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); 15347 clear_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state); 15348 if (test_and_clear_bit(BNXT_STATE_FW_ACTIVATE_RESET, &bp->state) && 15349 !test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) 15350 bnxt_dl_remote_reload(bp); 15351 if (pci_enable_device(bp->pdev)) { 15352 netdev_err(bp->dev, "Cannot re-enable PCI device\n"); 15353 rc = -ENODEV; 15354 goto fw_reset_abort; 15355 } 15356 pci_set_master(bp->pdev); 15357 bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW; 15358 fallthrough; 15359 case BNXT_FW_RESET_STATE_POLL_FW: 15360 bp->hwrm_cmd_timeout = SHORT_HWRM_CMD_TIMEOUT; 15361 rc = bnxt_hwrm_poll(bp); 15362 if (rc) { 15363 if (bnxt_fw_reset_timeout(bp)) { 15364 netdev_err(bp->dev, "Firmware reset aborted\n"); 15365 goto fw_reset_abort_status; 15366 } 15367 bnxt_queue_fw_reset_work(bp, HZ / 5); 15368 return; 15369 } 15370 bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT; 15371 bp->fw_reset_state = BNXT_FW_RESET_STATE_OPENING; 15372 fallthrough; 15373 case BNXT_FW_RESET_STATE_OPENING: 15374 while (!rtnl_trylock()) { 15375 bnxt_queue_fw_reset_work(bp, HZ / 10); 15376 return; 15377 } 15378 netdev_lock(bp->dev); 15379 rc = bnxt_open(bp->dev); 15380 if (rc) { 15381 netdev_err(bp->dev, "bnxt_open() failed during FW reset\n"); 15382 bnxt_fw_reset_abort(bp, rc); 15383 netdev_unlock(bp->dev); 15384 rtnl_unlock(); 15385 goto ulp_start; 15386 } 15387 15388 if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) && 15389 bp->fw_health->enabled) { 15390 bp->fw_health->last_fw_reset_cnt = 15391 bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 15392 } 15393 bp->fw_reset_state = 0; 15394 /* Make sure fw_reset_state is 0 before clearing the flag */ 15395 smp_mb__before_atomic(); 15396 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 15397 bnxt_ptp_reapply_pps(bp); 15398 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 15399 if (test_and_clear_bit(BNXT_STATE_RECOVER, &bp->state)) { 15400 bnxt_dl_health_fw_recovery_done(bp); 15401 bnxt_dl_health_fw_status_update(bp, true); 15402 } 15403 netdev_unlock(bp->dev); 15404 rtnl_unlock(); 15405 bnxt_ulp_start(bp); 15406 bnxt_reenable_sriov(bp); 15407 netdev_lock(bp->dev); 15408 bnxt_vf_reps_alloc(bp); 15409 bnxt_vf_reps_open(bp); 15410 netdev_unlock(bp->dev); 15411 break; 15412 } 15413 return; 15414 15415 fw_reset_abort_status: 15416 if (bp->fw_health->status_reliable || 15417 (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) { 15418 u32 sts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 15419 15420 netdev_err(bp->dev, "fw_health_status 0x%x\n", sts); 15421 } 15422 fw_reset_abort: 15423 netdev_lock(bp->dev); 15424 bnxt_fw_reset_abort(bp, rc); 15425 netdev_unlock(bp->dev); 15426 ulp_start: 15427 if (!rc) 15428 bnxt_ulp_start(bp); 15429 } 15430 15431 static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev) 15432 { 15433 int rc; 15434 struct bnxt *bp = netdev_priv(dev); 15435 15436 SET_NETDEV_DEV(dev, &pdev->dev); 15437 15438 /* enable device (incl. PCI PM wakeup), and bus-mastering */ 15439 rc = pci_enable_device(pdev); 15440 if (rc) { 15441 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); 15442 goto init_err; 15443 } 15444 15445 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 15446 dev_err(&pdev->dev, 15447 "Cannot find PCI device base address, aborting\n"); 15448 rc = -ENODEV; 15449 goto init_err_disable; 15450 } 15451 15452 rc = pci_request_regions(pdev, DRV_MODULE_NAME); 15453 if (rc) { 15454 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n"); 15455 goto init_err_disable; 15456 } 15457 15458 if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0 && 15459 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) { 15460 dev_err(&pdev->dev, "System does not support DMA, aborting\n"); 15461 rc = -EIO; 15462 goto init_err_release; 15463 } 15464 15465 pci_set_master(pdev); 15466 15467 bp->dev = dev; 15468 bp->pdev = pdev; 15469 15470 /* Doorbell BAR bp->bar1 is mapped after bnxt_fw_init_one_p2() 15471 * determines the BAR size. 15472 */ 15473 bp->bar0 = pci_ioremap_bar(pdev, 0); 15474 if (!bp->bar0) { 15475 dev_err(&pdev->dev, "Cannot map device registers, aborting\n"); 15476 rc = -ENOMEM; 15477 goto init_err_release; 15478 } 15479 15480 bp->bar2 = pci_ioremap_bar(pdev, 4); 15481 if (!bp->bar2) { 15482 dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n"); 15483 rc = -ENOMEM; 15484 goto init_err_release; 15485 } 15486 15487 INIT_WORK(&bp->sp_task, bnxt_sp_task); 15488 INIT_DELAYED_WORK(&bp->fw_reset_task, bnxt_fw_reset_task); 15489 15490 spin_lock_init(&bp->ntp_fltr_lock); 15491 #if BITS_PER_LONG == 32 15492 spin_lock_init(&bp->db_lock); 15493 #endif 15494 15495 bp->rx_ring_size = BNXT_DEFAULT_RX_RING_SIZE; 15496 bp->tx_ring_size = BNXT_DEFAULT_TX_RING_SIZE; 15497 15498 timer_setup(&bp->timer, bnxt_timer, 0); 15499 bp->current_interval = BNXT_TIMER_INTERVAL; 15500 15501 bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID; 15502 bp->nge_fw_dst_port_id = INVALID_HW_RING_ID; 15503 15504 clear_bit(BNXT_STATE_OPEN, &bp->state); 15505 return 0; 15506 15507 init_err_release: 15508 bnxt_unmap_bars(bp, pdev); 15509 pci_release_regions(pdev); 15510 15511 init_err_disable: 15512 pci_disable_device(pdev); 15513 15514 init_err: 15515 return rc; 15516 } 15517 15518 static int bnxt_change_mac_addr(struct net_device *dev, void *p) 15519 { 15520 struct sockaddr *addr = p; 15521 struct bnxt *bp = netdev_priv(dev); 15522 int rc = 0; 15523 15524 netdev_assert_locked(dev); 15525 15526 if (!is_valid_ether_addr(addr->sa_data)) 15527 return -EADDRNOTAVAIL; 15528 15529 if (ether_addr_equal(addr->sa_data, dev->dev_addr)) 15530 return 0; 15531 15532 rc = bnxt_approve_mac(bp, addr->sa_data, true); 15533 if (rc) 15534 return rc; 15535 15536 eth_hw_addr_set(dev, addr->sa_data); 15537 bnxt_clear_usr_fltrs(bp, true); 15538 if (netif_running(dev)) { 15539 bnxt_close_nic(bp, false, false); 15540 rc = bnxt_open_nic(bp, false, false); 15541 } 15542 15543 return rc; 15544 } 15545 15546 static int bnxt_change_mtu(struct net_device *dev, int new_mtu) 15547 { 15548 struct bnxt *bp = netdev_priv(dev); 15549 15550 netdev_assert_locked(dev); 15551 15552 if (netif_running(dev)) 15553 bnxt_close_nic(bp, true, false); 15554 15555 WRITE_ONCE(dev->mtu, new_mtu); 15556 15557 /* MTU change may change the AGG ring settings if an XDP multi-buffer 15558 * program is attached. We need to set the AGG rings settings and 15559 * rx_skb_func accordingly. 15560 */ 15561 if (READ_ONCE(bp->xdp_prog)) 15562 bnxt_set_rx_skb_mode(bp, true); 15563 15564 bnxt_set_ring_params(bp); 15565 15566 if (netif_running(dev)) 15567 return bnxt_open_nic(bp, true, false); 15568 15569 return 0; 15570 } 15571 15572 void bnxt_set_cp_rings(struct bnxt *bp, bool sh) 15573 { 15574 int tx_cp = bnxt_num_tx_to_cp(bp, bp->tx_nr_rings); 15575 15576 bp->cp_nr_rings = sh ? max_t(int, tx_cp, bp->rx_nr_rings) : 15577 tx_cp + bp->rx_nr_rings; 15578 } 15579 15580 int bnxt_setup_mq_tc(struct net_device *dev, u8 tc) 15581 { 15582 struct bnxt *bp = netdev_priv(dev); 15583 bool sh = false; 15584 int rc; 15585 15586 if (tc > bp->max_tc) { 15587 netdev_err(dev, "Too many traffic classes requested: %d. Max supported is %d.\n", 15588 tc, bp->max_tc); 15589 return -EINVAL; 15590 } 15591 15592 if (bp->num_tc == tc) 15593 return 0; 15594 15595 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 15596 sh = true; 15597 15598 rc = bnxt_check_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings, 15599 sh, tc, bp->tx_nr_rings_xdp); 15600 if (rc) 15601 return rc; 15602 15603 /* Needs to close the device and do hw resource re-allocations */ 15604 if (netif_running(bp->dev)) 15605 bnxt_close_nic(bp, true, false); 15606 15607 if (tc) { 15608 bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc; 15609 netdev_set_num_tc(dev, tc); 15610 bp->num_tc = tc; 15611 } else { 15612 bp->tx_nr_rings = bp->tx_nr_rings_per_tc; 15613 netdev_reset_tc(dev); 15614 bp->num_tc = 0; 15615 } 15616 bp->tx_nr_rings += bp->tx_nr_rings_xdp; 15617 bnxt_set_cp_rings(bp, sh); 15618 15619 if (netif_running(bp->dev)) 15620 return bnxt_open_nic(bp, true, false); 15621 15622 return 0; 15623 } 15624 15625 static int bnxt_setup_tc_block_cb(enum tc_setup_type type, void *type_data, 15626 void *cb_priv) 15627 { 15628 struct bnxt *bp = cb_priv; 15629 15630 if (!bnxt_tc_flower_enabled(bp) || 15631 !tc_cls_can_offload_and_chain0(bp->dev, type_data)) 15632 return -EOPNOTSUPP; 15633 15634 switch (type) { 15635 case TC_SETUP_CLSFLOWER: 15636 return bnxt_tc_setup_flower(bp, bp->pf.fw_fid, type_data); 15637 default: 15638 return -EOPNOTSUPP; 15639 } 15640 } 15641 15642 LIST_HEAD(bnxt_block_cb_list); 15643 15644 static int bnxt_setup_tc(struct net_device *dev, enum tc_setup_type type, 15645 void *type_data) 15646 { 15647 struct bnxt *bp = netdev_priv(dev); 15648 15649 switch (type) { 15650 case TC_SETUP_BLOCK: 15651 return flow_block_cb_setup_simple(type_data, 15652 &bnxt_block_cb_list, 15653 bnxt_setup_tc_block_cb, 15654 bp, bp, true); 15655 case TC_SETUP_QDISC_MQPRIO: { 15656 struct tc_mqprio_qopt *mqprio = type_data; 15657 15658 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; 15659 15660 return bnxt_setup_mq_tc(dev, mqprio->num_tc); 15661 } 15662 default: 15663 return -EOPNOTSUPP; 15664 } 15665 } 15666 15667 u32 bnxt_get_ntp_filter_idx(struct bnxt *bp, struct flow_keys *fkeys, 15668 const struct sk_buff *skb) 15669 { 15670 struct bnxt_vnic_info *vnic; 15671 15672 if (skb) 15673 return skb_get_hash_raw(skb) & BNXT_NTP_FLTR_HASH_MASK; 15674 15675 vnic = &bp->vnic_info[BNXT_VNIC_DEFAULT]; 15676 return bnxt_toeplitz(bp, fkeys, (void *)vnic->rss_hash_key); 15677 } 15678 15679 int bnxt_insert_ntp_filter(struct bnxt *bp, struct bnxt_ntuple_filter *fltr, 15680 u32 idx) 15681 { 15682 struct hlist_head *head; 15683 int bit_id; 15684 15685 spin_lock_bh(&bp->ntp_fltr_lock); 15686 bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, bp->max_fltr, 0); 15687 if (bit_id < 0) { 15688 spin_unlock_bh(&bp->ntp_fltr_lock); 15689 return -ENOMEM; 15690 } 15691 15692 fltr->base.sw_id = (u16)bit_id; 15693 fltr->base.type = BNXT_FLTR_TYPE_NTUPLE; 15694 fltr->base.flags |= BNXT_ACT_RING_DST; 15695 head = &bp->ntp_fltr_hash_tbl[idx]; 15696 hlist_add_head_rcu(&fltr->base.hash, head); 15697 set_bit(BNXT_FLTR_INSERTED, &fltr->base.state); 15698 bnxt_insert_usr_fltr(bp, &fltr->base); 15699 bp->ntp_fltr_count++; 15700 spin_unlock_bh(&bp->ntp_fltr_lock); 15701 return 0; 15702 } 15703 15704 static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1, 15705 struct bnxt_ntuple_filter *f2) 15706 { 15707 struct bnxt_flow_masks *masks1 = &f1->fmasks; 15708 struct bnxt_flow_masks *masks2 = &f2->fmasks; 15709 struct flow_keys *keys1 = &f1->fkeys; 15710 struct flow_keys *keys2 = &f2->fkeys; 15711 15712 if (keys1->basic.n_proto != keys2->basic.n_proto || 15713 keys1->basic.ip_proto != keys2->basic.ip_proto) 15714 return false; 15715 15716 if (keys1->basic.n_proto == htons(ETH_P_IP)) { 15717 if (keys1->addrs.v4addrs.src != keys2->addrs.v4addrs.src || 15718 masks1->addrs.v4addrs.src != masks2->addrs.v4addrs.src || 15719 keys1->addrs.v4addrs.dst != keys2->addrs.v4addrs.dst || 15720 masks1->addrs.v4addrs.dst != masks2->addrs.v4addrs.dst) 15721 return false; 15722 } else { 15723 if (!ipv6_addr_equal(&keys1->addrs.v6addrs.src, 15724 &keys2->addrs.v6addrs.src) || 15725 !ipv6_addr_equal(&masks1->addrs.v6addrs.src, 15726 &masks2->addrs.v6addrs.src) || 15727 !ipv6_addr_equal(&keys1->addrs.v6addrs.dst, 15728 &keys2->addrs.v6addrs.dst) || 15729 !ipv6_addr_equal(&masks1->addrs.v6addrs.dst, 15730 &masks2->addrs.v6addrs.dst)) 15731 return false; 15732 } 15733 15734 return keys1->ports.src == keys2->ports.src && 15735 masks1->ports.src == masks2->ports.src && 15736 keys1->ports.dst == keys2->ports.dst && 15737 masks1->ports.dst == masks2->ports.dst && 15738 keys1->control.flags == keys2->control.flags && 15739 f1->l2_fltr == f2->l2_fltr; 15740 } 15741 15742 struct bnxt_ntuple_filter * 15743 bnxt_lookup_ntp_filter_from_idx(struct bnxt *bp, 15744 struct bnxt_ntuple_filter *fltr, u32 idx) 15745 { 15746 struct bnxt_ntuple_filter *f; 15747 struct hlist_head *head; 15748 15749 head = &bp->ntp_fltr_hash_tbl[idx]; 15750 hlist_for_each_entry_rcu(f, head, base.hash) { 15751 if (bnxt_fltr_match(f, fltr)) 15752 return f; 15753 } 15754 return NULL; 15755 } 15756 15757 #ifdef CONFIG_RFS_ACCEL 15758 static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, 15759 u16 rxq_index, u32 flow_id) 15760 { 15761 struct bnxt *bp = netdev_priv(dev); 15762 struct bnxt_ntuple_filter *fltr, *new_fltr; 15763 struct flow_keys *fkeys; 15764 struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb); 15765 struct bnxt_l2_filter *l2_fltr; 15766 int rc = 0, idx; 15767 u32 flags; 15768 15769 if (ether_addr_equal(dev->dev_addr, eth->h_dest)) { 15770 l2_fltr = bp->vnic_info[BNXT_VNIC_DEFAULT].l2_filters[0]; 15771 atomic_inc(&l2_fltr->refcnt); 15772 } else { 15773 struct bnxt_l2_key key; 15774 15775 ether_addr_copy(key.dst_mac_addr, eth->h_dest); 15776 key.vlan = 0; 15777 l2_fltr = bnxt_lookup_l2_filter_from_key(bp, &key); 15778 if (!l2_fltr) 15779 return -EINVAL; 15780 if (l2_fltr->base.flags & BNXT_ACT_FUNC_DST) { 15781 bnxt_del_l2_filter(bp, l2_fltr); 15782 return -EINVAL; 15783 } 15784 } 15785 new_fltr = kzalloc_obj(*new_fltr, GFP_ATOMIC); 15786 if (!new_fltr) { 15787 bnxt_del_l2_filter(bp, l2_fltr); 15788 return -ENOMEM; 15789 } 15790 15791 fkeys = &new_fltr->fkeys; 15792 if (!skb_flow_dissect_flow_keys(skb, fkeys, 0)) { 15793 rc = -EPROTONOSUPPORT; 15794 goto err_free; 15795 } 15796 15797 if ((fkeys->basic.n_proto != htons(ETH_P_IP) && 15798 fkeys->basic.n_proto != htons(ETH_P_IPV6)) || 15799 ((fkeys->basic.ip_proto != IPPROTO_TCP) && 15800 (fkeys->basic.ip_proto != IPPROTO_UDP))) { 15801 rc = -EPROTONOSUPPORT; 15802 goto err_free; 15803 } 15804 new_fltr->fmasks = BNXT_FLOW_IPV4_MASK_ALL; 15805 if (fkeys->basic.n_proto == htons(ETH_P_IPV6)) { 15806 if (bp->hwrm_spec_code < 0x10601) { 15807 rc = -EPROTONOSUPPORT; 15808 goto err_free; 15809 } 15810 new_fltr->fmasks = BNXT_FLOW_IPV6_MASK_ALL; 15811 } 15812 flags = fkeys->control.flags; 15813 if (((flags & FLOW_DIS_ENCAPSULATION) && 15814 bp->hwrm_spec_code < 0x10601) || (flags & FLOW_DIS_IS_FRAGMENT)) { 15815 rc = -EPROTONOSUPPORT; 15816 goto err_free; 15817 } 15818 new_fltr->l2_fltr = l2_fltr; 15819 15820 idx = bnxt_get_ntp_filter_idx(bp, fkeys, skb); 15821 rcu_read_lock(); 15822 fltr = bnxt_lookup_ntp_filter_from_idx(bp, new_fltr, idx); 15823 if (fltr) { 15824 rc = fltr->base.sw_id; 15825 rcu_read_unlock(); 15826 goto err_free; 15827 } 15828 rcu_read_unlock(); 15829 15830 new_fltr->flow_id = flow_id; 15831 new_fltr->base.rxq = rxq_index; 15832 rc = bnxt_insert_ntp_filter(bp, new_fltr, idx); 15833 if (!rc) { 15834 bnxt_queue_sp_work(bp, BNXT_RX_NTP_FLTR_SP_EVENT); 15835 return new_fltr->base.sw_id; 15836 } 15837 15838 err_free: 15839 bnxt_del_l2_filter(bp, l2_fltr); 15840 kfree(new_fltr); 15841 return rc; 15842 } 15843 #endif 15844 15845 void bnxt_del_ntp_filter(struct bnxt *bp, struct bnxt_ntuple_filter *fltr) 15846 { 15847 spin_lock_bh(&bp->ntp_fltr_lock); 15848 if (!test_and_clear_bit(BNXT_FLTR_INSERTED, &fltr->base.state)) { 15849 spin_unlock_bh(&bp->ntp_fltr_lock); 15850 return; 15851 } 15852 hlist_del_rcu(&fltr->base.hash); 15853 bnxt_del_one_usr_fltr(bp, &fltr->base); 15854 bp->ntp_fltr_count--; 15855 spin_unlock_bh(&bp->ntp_fltr_lock); 15856 bnxt_del_l2_filter(bp, fltr->l2_fltr); 15857 clear_bit(fltr->base.sw_id, bp->ntp_fltr_bmap); 15858 kfree_rcu(fltr, base.rcu); 15859 } 15860 15861 static void bnxt_cfg_ntp_filters(struct bnxt *bp) 15862 { 15863 #ifdef CONFIG_RFS_ACCEL 15864 int i; 15865 15866 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) { 15867 struct hlist_head *head; 15868 struct hlist_node *tmp; 15869 struct bnxt_ntuple_filter *fltr; 15870 int rc; 15871 15872 head = &bp->ntp_fltr_hash_tbl[i]; 15873 hlist_for_each_entry_safe(fltr, tmp, head, base.hash) { 15874 bool del = false; 15875 15876 if (test_bit(BNXT_FLTR_VALID, &fltr->base.state)) { 15877 if (fltr->base.flags & BNXT_ACT_NO_AGING) 15878 continue; 15879 if (rps_may_expire_flow(bp->dev, fltr->base.rxq, 15880 fltr->flow_id, 15881 fltr->base.sw_id)) { 15882 bnxt_hwrm_cfa_ntuple_filter_free(bp, 15883 fltr); 15884 del = true; 15885 } 15886 } else { 15887 rc = bnxt_hwrm_cfa_ntuple_filter_alloc(bp, 15888 fltr); 15889 if (rc) 15890 del = true; 15891 else 15892 set_bit(BNXT_FLTR_VALID, &fltr->base.state); 15893 } 15894 15895 if (del) 15896 bnxt_del_ntp_filter(bp, fltr); 15897 } 15898 } 15899 #endif 15900 } 15901 15902 static int bnxt_udp_tunnel_set_port(struct net_device *netdev, unsigned int table, 15903 unsigned int entry, struct udp_tunnel_info *ti) 15904 { 15905 struct bnxt *bp = netdev_priv(netdev); 15906 unsigned int cmd; 15907 15908 if (ti->type == UDP_TUNNEL_TYPE_VXLAN) 15909 cmd = TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN; 15910 else if (ti->type == UDP_TUNNEL_TYPE_GENEVE) 15911 cmd = TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE; 15912 else 15913 cmd = TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN_GPE; 15914 15915 return bnxt_hwrm_tunnel_dst_port_alloc(bp, ti->port, cmd); 15916 } 15917 15918 static int bnxt_udp_tunnel_unset_port(struct net_device *netdev, unsigned int table, 15919 unsigned int entry, struct udp_tunnel_info *ti) 15920 { 15921 struct bnxt *bp = netdev_priv(netdev); 15922 unsigned int cmd; 15923 15924 if (ti->type == UDP_TUNNEL_TYPE_VXLAN) 15925 cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN; 15926 else if (ti->type == UDP_TUNNEL_TYPE_GENEVE) 15927 cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE; 15928 else 15929 cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN_GPE; 15930 15931 return bnxt_hwrm_tunnel_dst_port_free(bp, cmd); 15932 } 15933 15934 static const struct udp_tunnel_nic_info bnxt_udp_tunnels = { 15935 .set_port = bnxt_udp_tunnel_set_port, 15936 .unset_port = bnxt_udp_tunnel_unset_port, 15937 .flags = UDP_TUNNEL_NIC_INFO_OPEN_ONLY, 15938 .tables = { 15939 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, }, 15940 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, }, 15941 }, 15942 }, bnxt_udp_tunnels_p7 = { 15943 .set_port = bnxt_udp_tunnel_set_port, 15944 .unset_port = bnxt_udp_tunnel_unset_port, 15945 .flags = UDP_TUNNEL_NIC_INFO_OPEN_ONLY, 15946 .tables = { 15947 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, }, 15948 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, }, 15949 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN_GPE, }, 15950 }, 15951 }; 15952 15953 static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, 15954 struct net_device *dev, u32 filter_mask, 15955 int nlflags) 15956 { 15957 struct bnxt *bp = netdev_priv(dev); 15958 15959 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bp->br_mode, 0, 0, 15960 nlflags, filter_mask, NULL); 15961 } 15962 15963 static int bnxt_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, 15964 u16 flags, struct netlink_ext_ack *extack) 15965 { 15966 struct bnxt *bp = netdev_priv(dev); 15967 struct nlattr *attr, *br_spec; 15968 int rem, rc = 0; 15969 15970 if (bp->hwrm_spec_code < 0x10708 || !BNXT_SINGLE_PF(bp)) 15971 return -EOPNOTSUPP; 15972 15973 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); 15974 if (!br_spec) 15975 return -EINVAL; 15976 15977 nla_for_each_nested_type(attr, IFLA_BRIDGE_MODE, br_spec, rem) { 15978 u16 mode; 15979 15980 mode = nla_get_u16(attr); 15981 if (mode == bp->br_mode) 15982 break; 15983 15984 rc = bnxt_hwrm_set_br_mode(bp, mode); 15985 if (!rc) 15986 bp->br_mode = mode; 15987 break; 15988 } 15989 return rc; 15990 } 15991 15992 int bnxt_get_port_parent_id(struct net_device *dev, 15993 struct netdev_phys_item_id *ppid) 15994 { 15995 struct bnxt *bp = netdev_priv(dev); 15996 15997 if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV) 15998 return -EOPNOTSUPP; 15999 16000 /* The PF and it's VF-reps only support the switchdev framework */ 16001 if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_DSN_VALID)) 16002 return -EOPNOTSUPP; 16003 16004 ppid->id_len = sizeof(bp->dsn); 16005 memcpy(ppid->id, bp->dsn, ppid->id_len); 16006 16007 return 0; 16008 } 16009 16010 static const struct net_device_ops bnxt_netdev_ops = { 16011 .ndo_open = bnxt_open, 16012 .ndo_start_xmit = bnxt_start_xmit, 16013 .ndo_stop = bnxt_close, 16014 .ndo_get_stats64 = bnxt_get_stats64, 16015 .ndo_set_rx_mode_async = bnxt_set_rx_mode, 16016 .ndo_eth_ioctl = bnxt_ioctl, 16017 .ndo_validate_addr = eth_validate_addr, 16018 .ndo_set_mac_address = bnxt_change_mac_addr, 16019 .ndo_change_mtu = bnxt_change_mtu, 16020 .ndo_fix_features = bnxt_fix_features, 16021 .ndo_set_features = bnxt_set_features, 16022 .ndo_features_check = bnxt_features_check, 16023 .ndo_tx_timeout = bnxt_tx_timeout, 16024 #ifdef CONFIG_BNXT_SRIOV 16025 .ndo_get_vf_config = bnxt_get_vf_config, 16026 .ndo_set_vf_mac = bnxt_set_vf_mac, 16027 .ndo_set_vf_vlan = bnxt_set_vf_vlan, 16028 .ndo_set_vf_rate = bnxt_set_vf_bw, 16029 .ndo_set_vf_link_state = bnxt_set_vf_link_state, 16030 .ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk, 16031 .ndo_set_vf_trust = bnxt_set_vf_trust, 16032 #endif 16033 .ndo_setup_tc = bnxt_setup_tc, 16034 #ifdef CONFIG_RFS_ACCEL 16035 .ndo_rx_flow_steer = bnxt_rx_flow_steer, 16036 #endif 16037 .ndo_bpf = bnxt_xdp, 16038 .ndo_xdp_xmit = bnxt_xdp_xmit, 16039 .ndo_bridge_getlink = bnxt_bridge_getlink, 16040 .ndo_bridge_setlink = bnxt_bridge_setlink, 16041 .ndo_hwtstamp_get = bnxt_hwtstamp_get, 16042 .ndo_hwtstamp_set = bnxt_hwtstamp_set, 16043 }; 16044 16045 static const struct xdp_metadata_ops bnxt_xdp_metadata_ops = { 16046 .xmo_rx_hash = bnxt_xdp_rx_hash, 16047 }; 16048 16049 static void bnxt_get_queue_stats_rx(struct net_device *dev, int i, 16050 struct netdev_queue_stats_rx *stats) 16051 { 16052 struct bnxt *bp = netdev_priv(dev); 16053 struct bnxt_cp_ring_info *cpr; 16054 u64 *sw; 16055 16056 if (!bp->bnapi) 16057 return; 16058 16059 cpr = &bp->bnapi[i]->cp_ring; 16060 sw = cpr->stats.sw_stats; 16061 16062 stats->packets = 0; 16063 stats->packets += BNXT_GET_RING_STATS64(sw, rx_ucast_pkts); 16064 stats->packets += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts); 16065 stats->packets += BNXT_GET_RING_STATS64(sw, rx_bcast_pkts); 16066 16067 stats->bytes = 0; 16068 stats->bytes += BNXT_GET_RING_STATS64(sw, rx_ucast_bytes); 16069 stats->bytes += BNXT_GET_RING_STATS64(sw, rx_mcast_bytes); 16070 stats->bytes += BNXT_GET_RING_STATS64(sw, rx_bcast_bytes); 16071 16072 stats->alloc_fail = cpr->sw_stats->rx.rx_oom_discards; 16073 stats->hw_gro_packets = cpr->sw_stats->rx.rx_hw_gro_packets; 16074 stats->hw_gro_wire_packets = cpr->sw_stats->rx.rx_hw_gro_wire_packets; 16075 } 16076 16077 static void bnxt_get_queue_stats_tx(struct net_device *dev, int i, 16078 struct netdev_queue_stats_tx *stats) 16079 { 16080 struct bnxt *bp = netdev_priv(dev); 16081 struct bnxt_napi *bnapi; 16082 u64 *sw; 16083 16084 if (!bp->tx_ring) 16085 return; 16086 16087 bnapi = bp->tx_ring[bp->tx_ring_map[i]].bnapi; 16088 sw = bnapi->cp_ring.stats.sw_stats; 16089 16090 stats->packets = 0; 16091 stats->packets += BNXT_GET_RING_STATS64(sw, tx_ucast_pkts); 16092 stats->packets += BNXT_GET_RING_STATS64(sw, tx_mcast_pkts); 16093 stats->packets += BNXT_GET_RING_STATS64(sw, tx_bcast_pkts); 16094 16095 stats->bytes = 0; 16096 stats->bytes += BNXT_GET_RING_STATS64(sw, tx_ucast_bytes); 16097 stats->bytes += BNXT_GET_RING_STATS64(sw, tx_mcast_bytes); 16098 stats->bytes += BNXT_GET_RING_STATS64(sw, tx_bcast_bytes); 16099 } 16100 16101 static void bnxt_get_base_stats(struct net_device *dev, 16102 struct netdev_queue_stats_rx *rx, 16103 struct netdev_queue_stats_tx *tx) 16104 { 16105 struct bnxt *bp = netdev_priv(dev); 16106 16107 rx->packets = bp->net_stats_prev.rx_packets; 16108 rx->bytes = bp->net_stats_prev.rx_bytes; 16109 rx->alloc_fail = bp->ring_drv_stats_prev.rx_total_oom_discards; 16110 rx->hw_gro_packets = bp->ring_drv_stats_prev.rx_total_hw_gro_packets; 16111 rx->hw_gro_wire_packets = bp->ring_drv_stats_prev.rx_total_hw_gro_wire_packets; 16112 16113 tx->packets = bp->net_stats_prev.tx_packets; 16114 tx->bytes = bp->net_stats_prev.tx_bytes; 16115 } 16116 16117 static const struct netdev_stat_ops bnxt_stat_ops = { 16118 .get_queue_stats_rx = bnxt_get_queue_stats_rx, 16119 .get_queue_stats_tx = bnxt_get_queue_stats_tx, 16120 .get_base_stats = bnxt_get_base_stats, 16121 }; 16122 16123 static void bnxt_queue_default_qcfg(struct net_device *dev, 16124 struct netdev_queue_config *qcfg) 16125 { 16126 qcfg->rx_page_size = BNXT_RX_PAGE_SIZE; 16127 } 16128 16129 static int bnxt_validate_qcfg(struct net_device *dev, 16130 struct netdev_queue_config *qcfg, 16131 struct netlink_ext_ack *extack) 16132 { 16133 struct bnxt *bp = netdev_priv(dev); 16134 16135 /* Older chips need MSS calc so rx_page_size is not supported */ 16136 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && 16137 qcfg->rx_page_size != BNXT_RX_PAGE_SIZE) 16138 return -EINVAL; 16139 16140 if (!is_power_of_2(qcfg->rx_page_size)) 16141 return -ERANGE; 16142 16143 if (qcfg->rx_page_size < BNXT_RX_PAGE_SIZE || 16144 qcfg->rx_page_size > BNXT_MAX_RX_PAGE_SIZE) 16145 return -ERANGE; 16146 16147 return 0; 16148 } 16149 16150 static int bnxt_queue_mem_alloc(struct net_device *dev, 16151 struct netdev_queue_config *qcfg, 16152 void *qmem, int idx) 16153 { 16154 struct bnxt_rx_ring_info *rxr, *clone; 16155 struct bnxt *bp = netdev_priv(dev); 16156 struct bnxt_ring_struct *ring; 16157 int rc; 16158 16159 if (!bp->rx_ring) 16160 return -ENETDOWN; 16161 16162 rxr = &bp->rx_ring[idx]; 16163 clone = qmem; 16164 memcpy(clone, rxr, sizeof(*rxr)); 16165 bnxt_init_rx_ring_struct(bp, clone); 16166 bnxt_reset_rx_ring_struct(bp, clone); 16167 16168 clone->rx_prod = 0; 16169 clone->rx_agg_prod = 0; 16170 clone->rx_sw_agg_prod = 0; 16171 clone->rx_next_cons = 0; 16172 clone->need_head_pool = false; 16173 clone->rx_page_size = qcfg->rx_page_size; 16174 16175 rc = bnxt_alloc_rx_page_pool(bp, clone, rxr->page_pool->p.nid); 16176 if (rc) 16177 return rc; 16178 16179 rc = xdp_rxq_info_reg(&clone->xdp_rxq, bp->dev, idx, 0); 16180 if (rc < 0) 16181 goto err_page_pool_destroy; 16182 16183 rc = xdp_rxq_info_reg_mem_model(&clone->xdp_rxq, 16184 MEM_TYPE_PAGE_POOL, 16185 clone->page_pool); 16186 if (rc) 16187 goto err_rxq_info_unreg; 16188 16189 ring = &clone->rx_ring_struct; 16190 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 16191 if (rc) 16192 goto err_free_rx_ring; 16193 16194 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 16195 ring = &clone->rx_agg_ring_struct; 16196 rc = bnxt_alloc_ring(bp, &ring->ring_mem); 16197 if (rc) 16198 goto err_free_rx_agg_ring; 16199 16200 rc = bnxt_alloc_rx_agg_bmap(bp, clone); 16201 if (rc) 16202 goto err_free_rx_agg_ring; 16203 } 16204 16205 if (bp->flags & BNXT_FLAG_TPA) { 16206 rc = bnxt_alloc_one_tpa_info(bp, clone); 16207 if (rc) 16208 goto err_free_tpa_info; 16209 } 16210 16211 bnxt_init_one_rx_ring_rxbd(bp, clone); 16212 bnxt_init_one_rx_agg_ring_rxbd(bp, clone); 16213 16214 bnxt_alloc_one_rx_ring_skb(bp, clone, idx); 16215 if (bp->flags & BNXT_FLAG_AGG_RINGS) 16216 bnxt_alloc_one_rx_ring_netmem(bp, clone, idx); 16217 if (bp->flags & BNXT_FLAG_TPA) 16218 bnxt_alloc_one_tpa_info_data(bp, clone); 16219 16220 return 0; 16221 16222 err_free_tpa_info: 16223 bnxt_free_one_tpa_info(bp, clone); 16224 err_free_rx_agg_ring: 16225 bnxt_free_ring(bp, &clone->rx_agg_ring_struct.ring_mem); 16226 err_free_rx_ring: 16227 bnxt_free_ring(bp, &clone->rx_ring_struct.ring_mem); 16228 err_rxq_info_unreg: 16229 xdp_rxq_info_unreg(&clone->xdp_rxq); 16230 err_page_pool_destroy: 16231 page_pool_destroy(clone->page_pool); 16232 page_pool_destroy(clone->head_pool); 16233 clone->page_pool = NULL; 16234 clone->head_pool = NULL; 16235 return rc; 16236 } 16237 16238 static void bnxt_queue_mem_free(struct net_device *dev, void *qmem) 16239 { 16240 struct bnxt_rx_ring_info *rxr = qmem; 16241 struct bnxt *bp = netdev_priv(dev); 16242 struct bnxt_ring_struct *ring; 16243 16244 bnxt_free_one_rx_ring_skbs(bp, rxr); 16245 bnxt_free_one_tpa_info(bp, rxr); 16246 16247 xdp_rxq_info_unreg(&rxr->xdp_rxq); 16248 16249 page_pool_destroy(rxr->page_pool); 16250 page_pool_destroy(rxr->head_pool); 16251 rxr->page_pool = NULL; 16252 rxr->head_pool = NULL; 16253 16254 ring = &rxr->rx_ring_struct; 16255 bnxt_free_ring(bp, &ring->ring_mem); 16256 16257 ring = &rxr->rx_agg_ring_struct; 16258 bnxt_free_ring(bp, &ring->ring_mem); 16259 16260 kfree(rxr->rx_agg_bmap); 16261 rxr->rx_agg_bmap = NULL; 16262 } 16263 16264 static void bnxt_copy_rx_ring(struct bnxt *bp, 16265 struct bnxt_rx_ring_info *dst, 16266 struct bnxt_rx_ring_info *src) 16267 { 16268 struct bnxt_ring_mem_info *dst_rmem, *src_rmem; 16269 struct bnxt_ring_struct *dst_ring, *src_ring; 16270 int i; 16271 16272 dst_ring = &dst->rx_ring_struct; 16273 dst_rmem = &dst_ring->ring_mem; 16274 src_ring = &src->rx_ring_struct; 16275 src_rmem = &src_ring->ring_mem; 16276 16277 WARN_ON(dst_rmem->nr_pages != src_rmem->nr_pages); 16278 WARN_ON(dst_rmem->page_size != src_rmem->page_size); 16279 WARN_ON(dst_rmem->flags != src_rmem->flags); 16280 WARN_ON(dst_rmem->depth != src_rmem->depth); 16281 WARN_ON(dst_rmem->vmem_size != src_rmem->vmem_size); 16282 WARN_ON(dst_rmem->ctx_mem != src_rmem->ctx_mem); 16283 16284 dst_rmem->pg_tbl = src_rmem->pg_tbl; 16285 dst_rmem->pg_tbl_map = src_rmem->pg_tbl_map; 16286 *dst_rmem->vmem = *src_rmem->vmem; 16287 for (i = 0; i < dst_rmem->nr_pages; i++) { 16288 dst_rmem->pg_arr[i] = src_rmem->pg_arr[i]; 16289 dst_rmem->dma_arr[i] = src_rmem->dma_arr[i]; 16290 } 16291 16292 if (!(bp->flags & BNXT_FLAG_AGG_RINGS)) 16293 return; 16294 16295 dst_ring = &dst->rx_agg_ring_struct; 16296 dst_rmem = &dst_ring->ring_mem; 16297 src_ring = &src->rx_agg_ring_struct; 16298 src_rmem = &src_ring->ring_mem; 16299 16300 dst->rx_page_size = src->rx_page_size; 16301 16302 WARN_ON(dst_rmem->nr_pages != src_rmem->nr_pages); 16303 WARN_ON(dst_rmem->page_size != src_rmem->page_size); 16304 WARN_ON(dst_rmem->flags != src_rmem->flags); 16305 WARN_ON(dst_rmem->depth != src_rmem->depth); 16306 WARN_ON(dst_rmem->vmem_size != src_rmem->vmem_size); 16307 WARN_ON(dst_rmem->ctx_mem != src_rmem->ctx_mem); 16308 WARN_ON(dst->rx_agg_bmap_size != src->rx_agg_bmap_size); 16309 16310 dst_rmem->pg_tbl = src_rmem->pg_tbl; 16311 dst_rmem->pg_tbl_map = src_rmem->pg_tbl_map; 16312 *dst_rmem->vmem = *src_rmem->vmem; 16313 for (i = 0; i < dst_rmem->nr_pages; i++) { 16314 dst_rmem->pg_arr[i] = src_rmem->pg_arr[i]; 16315 dst_rmem->dma_arr[i] = src_rmem->dma_arr[i]; 16316 } 16317 16318 dst->rx_agg_bmap = src->rx_agg_bmap; 16319 } 16320 16321 static int bnxt_queue_start(struct net_device *dev, 16322 struct netdev_queue_config *qcfg, 16323 void *qmem, int idx) 16324 { 16325 struct bnxt *bp = netdev_priv(dev); 16326 struct bnxt_rx_ring_info *rxr, *clone; 16327 struct bnxt_cp_ring_info *cpr; 16328 struct bnxt_vnic_info *vnic; 16329 struct bnxt_napi *bnapi; 16330 int i, rc; 16331 u16 mru; 16332 16333 rxr = &bp->rx_ring[idx]; 16334 clone = qmem; 16335 16336 rxr->rx_prod = clone->rx_prod; 16337 rxr->rx_agg_prod = clone->rx_agg_prod; 16338 rxr->rx_sw_agg_prod = clone->rx_sw_agg_prod; 16339 rxr->rx_next_cons = clone->rx_next_cons; 16340 rxr->rx_tpa = clone->rx_tpa; 16341 rxr->rx_tpa_idx_map = clone->rx_tpa_idx_map; 16342 rxr->page_pool = clone->page_pool; 16343 rxr->head_pool = clone->head_pool; 16344 rxr->xdp_rxq = clone->xdp_rxq; 16345 rxr->need_head_pool = clone->need_head_pool; 16346 16347 bnxt_copy_rx_ring(bp, rxr, clone); 16348 16349 bnapi = rxr->bnapi; 16350 cpr = &bnapi->cp_ring; 16351 16352 /* All rings have been reserved and previously allocated. 16353 * Reallocating with the same parameters should never fail. 16354 */ 16355 rc = bnxt_hwrm_rx_ring_alloc(bp, rxr); 16356 if (rc) 16357 goto err_reset; 16358 16359 if (bp->tph_mode) { 16360 rc = bnxt_hwrm_cp_ring_alloc_p5(bp, rxr->rx_cpr); 16361 if (rc) 16362 goto err_reset; 16363 } 16364 16365 rc = bnxt_hwrm_rx_agg_ring_alloc(bp, rxr); 16366 if (rc) 16367 goto err_reset; 16368 16369 bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); 16370 if (bp->flags & BNXT_FLAG_AGG_RINGS) 16371 bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); 16372 16373 if (bp->flags & BNXT_FLAG_SHARED_RINGS) { 16374 rc = bnxt_tx_queue_start(bp, idx); 16375 if (rc) 16376 goto err_reset; 16377 } 16378 16379 bnxt_enable_rx_page_pool(rxr); 16380 napi_enable_locked(&bnapi->napi); 16381 bnxt_db_nq_arm(bp, &cpr->cp_db, cpr->cp_raw_cons); 16382 16383 mru = bp->dev->mtu + VLAN_ETH_HLEN; 16384 for (i = 0; i < bp->nr_vnics; i++) { 16385 vnic = &bp->vnic_info[i]; 16386 16387 rc = bnxt_set_vnic_mru_p5(bp, vnic, mru, idx); 16388 if (rc) 16389 return rc; 16390 } 16391 return bnxt_set_rss_ctx_vnic_mru(bp, mru, idx); 16392 16393 err_reset: 16394 netdev_err(bp->dev, "Unexpected HWRM error during queue start rc: %d\n", 16395 rc); 16396 napi_enable_locked(&bnapi->napi); 16397 bnxt_db_nq_arm(bp, &cpr->cp_db, cpr->cp_raw_cons); 16398 netif_close(dev); 16399 return rc; 16400 } 16401 16402 static int bnxt_queue_stop(struct net_device *dev, void *qmem, int idx) 16403 { 16404 struct bnxt *bp = netdev_priv(dev); 16405 struct bnxt_rx_ring_info *rxr; 16406 struct bnxt_cp_ring_info *cpr; 16407 struct bnxt_vnic_info *vnic; 16408 struct bnxt_napi *bnapi; 16409 int i; 16410 16411 for (i = 0; i < bp->nr_vnics; i++) { 16412 vnic = &bp->vnic_info[i]; 16413 16414 bnxt_set_vnic_mru_p5(bp, vnic, 0, idx); 16415 } 16416 bnxt_set_rss_ctx_vnic_mru(bp, 0, idx); 16417 /* Make sure NAPI sees that the VNIC is disabled */ 16418 synchronize_net(); 16419 rxr = &bp->rx_ring[idx]; 16420 bnapi = rxr->bnapi; 16421 cpr = &bnapi->cp_ring; 16422 cancel_work_sync(&cpr->dim.work); 16423 bnxt_hwrm_rx_ring_free(bp, rxr, false); 16424 bnxt_hwrm_rx_agg_ring_free(bp, rxr, false); 16425 page_pool_disable_direct_recycling(rxr->page_pool); 16426 if (bnxt_separate_head_pool(rxr)) 16427 page_pool_disable_direct_recycling(rxr->head_pool); 16428 16429 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 16430 bnxt_tx_queue_stop(bp, idx); 16431 16432 /* Disable NAPI now after freeing the rings because HWRM_RING_FREE 16433 * completion is handled in NAPI to guarantee no more DMA on that ring 16434 * after seeing the completion. 16435 */ 16436 napi_disable_locked(&bnapi->napi); 16437 16438 if (bp->tph_mode) { 16439 bnxt_hwrm_cp_ring_free(bp, rxr->rx_cpr); 16440 bnxt_clear_one_cp_ring(bp, rxr->rx_cpr); 16441 } 16442 bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons); 16443 16444 memcpy(qmem, rxr, sizeof(*rxr)); 16445 bnxt_init_rx_ring_struct(bp, qmem); 16446 16447 return 0; 16448 } 16449 16450 static const struct netdev_queue_mgmt_ops bnxt_queue_mgmt_ops = { 16451 .ndo_queue_mem_size = sizeof(struct bnxt_rx_ring_info), 16452 .ndo_queue_mem_alloc = bnxt_queue_mem_alloc, 16453 .ndo_queue_mem_free = bnxt_queue_mem_free, 16454 .ndo_queue_start = bnxt_queue_start, 16455 .ndo_queue_stop = bnxt_queue_stop, 16456 .ndo_default_qcfg = bnxt_queue_default_qcfg, 16457 .ndo_validate_qcfg = bnxt_validate_qcfg, 16458 .supported_params = QCFG_RX_PAGE_SIZE, 16459 }; 16460 16461 static const struct netdev_queue_mgmt_ops bnxt_queue_mgmt_ops_unsupp = { 16462 .ndo_default_qcfg = bnxt_queue_default_qcfg, 16463 }; 16464 16465 static void bnxt_remove_one(struct pci_dev *pdev) 16466 { 16467 struct net_device *dev = pci_get_drvdata(pdev); 16468 struct bnxt *bp = netdev_priv(dev); 16469 16470 if (BNXT_PF(bp)) 16471 __bnxt_sriov_disable(bp); 16472 16473 bnxt_aux_devices_del(bp); 16474 16475 unregister_netdev(dev); 16476 bnxt_ptp_clear(bp); 16477 16478 bnxt_aux_devices_uninit(bp); 16479 bnxt_auxdev_id_free(bp, bp->auxdev_id); 16480 16481 bnxt_free_l2_filters(bp, true); 16482 bnxt_free_ntp_fltrs(bp, true); 16483 WARN_ON(bp->num_rss_ctx); 16484 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 16485 /* Flush any pending tasks */ 16486 cancel_work_sync(&bp->sp_task); 16487 cancel_delayed_work_sync(&bp->fw_reset_task); 16488 bp->sp_event = 0; 16489 16490 bnxt_dl_fw_reporters_destroy(bp); 16491 bnxt_dl_unregister(bp); 16492 bnxt_shutdown_tc(bp); 16493 16494 bnxt_clear_int_mode(bp); 16495 bnxt_hwrm_func_drv_unrgtr(bp); 16496 bnxt_free_hwrm_resources(bp); 16497 bnxt_hwmon_uninit(bp); 16498 bnxt_ethtool_free(bp); 16499 bnxt_dcb_free(bp); 16500 kfree(bp->ptp_cfg); 16501 bp->ptp_cfg = NULL; 16502 kfree(bp->fw_health); 16503 bp->fw_health = NULL; 16504 bnxt_cleanup_pci(bp); 16505 bnxt_free_ctx_mem(bp, true); 16506 bnxt_free_crash_dump_mem(bp); 16507 kfree(bp->rss_indir_tbl); 16508 bp->rss_indir_tbl = NULL; 16509 bnxt_free_port_stats(bp); 16510 free_netdev(dev); 16511 } 16512 16513 static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt) 16514 { 16515 int rc = 0; 16516 struct bnxt_link_info *link_info = &bp->link_info; 16517 16518 bp->phy_flags = 0; 16519 rc = bnxt_hwrm_phy_qcaps(bp); 16520 if (rc) { 16521 netdev_err(bp->dev, "Probe phy can't get phy capabilities (rc: %x)\n", 16522 rc); 16523 return rc; 16524 } 16525 if (bp->phy_flags & BNXT_PHY_FL_NO_FCS) 16526 bp->dev->priv_flags |= IFF_SUPP_NOFCS; 16527 else 16528 bp->dev->priv_flags &= ~IFF_SUPP_NOFCS; 16529 16530 bp->mac_flags = 0; 16531 bnxt_hwrm_mac_qcaps(bp); 16532 16533 if (!fw_dflt) 16534 return 0; 16535 16536 mutex_lock(&bp->link_lock); 16537 rc = bnxt_update_link(bp, false); 16538 if (rc) { 16539 mutex_unlock(&bp->link_lock); 16540 netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n", 16541 rc); 16542 return rc; 16543 } 16544 16545 /* Older firmware does not have supported_auto_speeds, so assume 16546 * that all supported speeds can be autonegotiated. 16547 */ 16548 if (link_info->auto_link_speeds && !link_info->support_auto_speeds) 16549 link_info->support_auto_speeds = link_info->support_speeds; 16550 16551 bnxt_init_ethtool_link_settings(bp); 16552 mutex_unlock(&bp->link_lock); 16553 return 0; 16554 } 16555 16556 static int bnxt_get_max_irq(struct pci_dev *pdev) 16557 { 16558 u16 ctrl; 16559 16560 if (!pdev->msix_cap) 16561 return 1; 16562 16563 pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl); 16564 return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1; 16565 } 16566 16567 static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, 16568 int *max_cp) 16569 { 16570 struct bnxt_hw_resc *hw_resc = &bp->hw_resc; 16571 int max_ring_grps = 0, max_irq; 16572 16573 *max_tx = hw_resc->max_tx_rings; 16574 *max_rx = hw_resc->max_rx_rings; 16575 *max_cp = bnxt_get_max_func_cp_rings_for_en(bp); 16576 max_irq = min_t(int, bnxt_get_max_func_irqs(bp) - 16577 bnxt_get_ulp_msix_num_in_use(bp), 16578 hw_resc->max_stat_ctxs - 16579 bnxt_get_ulp_stat_ctxs_in_use(bp)); 16580 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) 16581 *max_cp = min_t(int, *max_cp, max_irq); 16582 max_ring_grps = hw_resc->max_hw_ring_grps; 16583 if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) { 16584 *max_cp -= 1; 16585 *max_rx -= 2; 16586 } 16587 if (bp->flags & BNXT_FLAG_AGG_RINGS) 16588 *max_rx >>= 1; 16589 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { 16590 int rc; 16591 16592 rc = __bnxt_trim_rings(bp, max_rx, max_tx, *max_cp, false); 16593 if (rc) { 16594 *max_rx = 0; 16595 *max_tx = 0; 16596 } 16597 /* On P5 chips, max_cp output param should be available NQs */ 16598 *max_cp = max_irq; 16599 } 16600 *max_rx = min_t(int, *max_rx, max_ring_grps); 16601 } 16602 16603 int bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared) 16604 { 16605 int rx, tx, cp; 16606 16607 _bnxt_get_max_rings(bp, &rx, &tx, &cp); 16608 *max_rx = rx; 16609 *max_tx = tx; 16610 if (!rx || !tx || !cp) 16611 return -ENOMEM; 16612 16613 return bnxt_trim_rings(bp, max_rx, max_tx, cp, shared); 16614 } 16615 16616 static int bnxt_get_dflt_rings(struct bnxt *bp, int *max_rx, int *max_tx, 16617 bool shared) 16618 { 16619 int rc; 16620 16621 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared); 16622 if (rc && (bp->flags & BNXT_FLAG_AGG_RINGS)) { 16623 /* Not enough rings, try disabling agg rings. */ 16624 bp->flags &= ~BNXT_FLAG_AGG_RINGS; 16625 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared); 16626 if (rc) { 16627 /* set BNXT_FLAG_AGG_RINGS back for consistency */ 16628 bp->flags |= BNXT_FLAG_AGG_RINGS; 16629 return rc; 16630 } 16631 bp->flags |= BNXT_FLAG_NO_AGG_RINGS; 16632 bp->dev->hw_features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); 16633 bp->dev->features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); 16634 bnxt_set_ring_params(bp); 16635 } 16636 16637 if (bp->flags & BNXT_FLAG_ROCE_CAP) { 16638 int max_cp, max_stat, max_irq; 16639 16640 /* Reserve minimum resources for RoCE */ 16641 max_cp = bnxt_get_max_func_cp_rings(bp); 16642 max_stat = bnxt_get_max_func_stat_ctxs(bp); 16643 max_irq = bnxt_get_max_func_irqs(bp); 16644 if (max_cp <= BNXT_MIN_ROCE_CP_RINGS || 16645 max_irq <= BNXT_MIN_ROCE_CP_RINGS || 16646 max_stat <= BNXT_MIN_ROCE_STAT_CTXS) 16647 return 0; 16648 16649 max_cp -= BNXT_MIN_ROCE_CP_RINGS; 16650 max_irq -= BNXT_MIN_ROCE_CP_RINGS; 16651 max_stat -= BNXT_MIN_ROCE_STAT_CTXS; 16652 max_cp = min_t(int, max_cp, max_irq); 16653 max_cp = min_t(int, max_cp, max_stat); 16654 rc = bnxt_trim_rings(bp, max_rx, max_tx, max_cp, shared); 16655 if (rc) 16656 rc = 0; 16657 } 16658 return rc; 16659 } 16660 16661 /* In initial default shared ring setting, each shared ring must have a 16662 * RX/TX ring pair. 16663 */ 16664 static void bnxt_trim_dflt_sh_rings(struct bnxt *bp) 16665 { 16666 bp->cp_nr_rings = min_t(int, bp->tx_nr_rings_per_tc, bp->rx_nr_rings); 16667 bp->rx_nr_rings = bp->cp_nr_rings; 16668 bp->tx_nr_rings_per_tc = bp->cp_nr_rings; 16669 bp->tx_nr_rings = bnxt_tx_nr_rings(bp); 16670 } 16671 16672 static void bnxt_adj_dflt_rings(struct bnxt *bp, bool sh) 16673 { 16674 if (sh) 16675 bnxt_trim_dflt_sh_rings(bp); 16676 else 16677 bp->cp_nr_rings = bp->tx_nr_rings_per_tc + bp->rx_nr_rings; 16678 bp->tx_nr_rings = bnxt_tx_nr_rings(bp); 16679 if (sh && READ_ONCE(bp->xdp_prog)) { 16680 bnxt_set_xdp_tx_rings(bp); 16681 bnxt_set_cp_rings(bp, true); 16682 } 16683 } 16684 16685 static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh) 16686 { 16687 int dflt_rings, max_rx_rings, max_tx_rings, rc; 16688 int avail_msix; 16689 16690 if (!bnxt_can_reserve_rings(bp)) 16691 return 0; 16692 16693 if (sh) 16694 bp->flags |= BNXT_FLAG_SHARED_RINGS; 16695 dflt_rings = is_kdump_kernel() ? 1 : netif_get_num_default_rss_queues(); 16696 /* Reduce default rings on multi-port cards so that total default 16697 * rings do not exceed CPU count. 16698 */ 16699 if (bp->port_count > 1) { 16700 int max_rings = 16701 max_t(int, num_online_cpus() / bp->port_count, 1); 16702 16703 dflt_rings = min_t(int, dflt_rings, max_rings); 16704 } 16705 rc = bnxt_get_dflt_rings(bp, &max_rx_rings, &max_tx_rings, sh); 16706 if (rc) 16707 return rc; 16708 bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings); 16709 bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings); 16710 16711 bnxt_adj_dflt_rings(bp, sh); 16712 16713 avail_msix = bnxt_get_max_func_irqs(bp) - bp->cp_nr_rings; 16714 if (avail_msix >= BNXT_MIN_ROCE_CP_RINGS) { 16715 int ulp_num_msix = min(avail_msix, bp->ulp_num_msix_want); 16716 16717 bnxt_set_ulp_msix_num(bp, ulp_num_msix); 16718 bnxt_set_dflt_ulp_stat_ctxs(bp); 16719 } 16720 16721 rc = __bnxt_reserve_rings(bp); 16722 if (rc && rc != -ENODEV) 16723 netdev_warn(bp->dev, "Unable to reserve tx rings\n"); 16724 16725 bnxt_adj_tx_rings(bp); 16726 if (sh) 16727 bnxt_adj_dflt_rings(bp, true); 16728 16729 /* Rings may have been trimmed, re-reserve the trimmed rings. */ 16730 if (bnxt_need_reserve_rings(bp)) { 16731 rc = __bnxt_reserve_rings(bp); 16732 if (rc && rc != -ENODEV) 16733 netdev_warn(bp->dev, "2nd rings reservation failed.\n"); 16734 bnxt_adj_tx_rings(bp); 16735 } 16736 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 16737 bp->rx_nr_rings++; 16738 bp->cp_nr_rings++; 16739 } 16740 if (rc) { 16741 bp->tx_nr_rings = 0; 16742 bp->rx_nr_rings = 0; 16743 } 16744 return rc; 16745 } 16746 16747 static int bnxt_init_dflt_ring_mode(struct bnxt *bp) 16748 { 16749 int rc; 16750 16751 if (bp->tx_nr_rings) 16752 return 0; 16753 16754 bnxt_ulp_irq_stop(bp); 16755 bnxt_clear_int_mode(bp); 16756 rc = bnxt_set_dflt_rings(bp, true); 16757 if (rc) { 16758 if (BNXT_VF(bp) && rc == -ENODEV) 16759 netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n"); 16760 else 16761 netdev_err(bp->dev, "Not enough rings available.\n"); 16762 goto init_dflt_ring_err; 16763 } 16764 rc = bnxt_init_int_mode(bp); 16765 if (rc) 16766 goto init_dflt_ring_err; 16767 16768 bnxt_adj_tx_rings(bp); 16769 16770 bnxt_set_dflt_rfs(bp); 16771 16772 init_dflt_ring_err: 16773 bnxt_ulp_irq_restart(bp, rc); 16774 return rc; 16775 } 16776 16777 int bnxt_restore_pf_fw_resources(struct bnxt *bp) 16778 { 16779 int rc; 16780 16781 netdev_assert_locked_ops_compat(bp->dev); 16782 bnxt_hwrm_func_qcaps(bp); 16783 16784 if (netif_running(bp->dev)) 16785 __bnxt_close_nic(bp, true, false); 16786 16787 bnxt_ulp_irq_stop(bp); 16788 bnxt_clear_int_mode(bp); 16789 rc = bnxt_init_int_mode(bp); 16790 bnxt_ulp_irq_restart(bp, rc); 16791 16792 if (netif_running(bp->dev)) { 16793 if (rc) 16794 netif_close(bp->dev); 16795 else 16796 rc = bnxt_open_nic(bp, true, false); 16797 } 16798 16799 return rc; 16800 } 16801 16802 static int bnxt_init_mac_addr(struct bnxt *bp) 16803 { 16804 int rc = 0; 16805 16806 if (BNXT_PF(bp)) { 16807 eth_hw_addr_set(bp->dev, bp->pf.mac_addr); 16808 } else { 16809 #ifdef CONFIG_BNXT_SRIOV 16810 struct bnxt_vf_info *vf = &bp->vf; 16811 bool strict_approval = true; 16812 16813 if (is_valid_ether_addr(vf->mac_addr)) { 16814 /* overwrite netdev dev_addr with admin VF MAC */ 16815 eth_hw_addr_set(bp->dev, vf->mac_addr); 16816 /* Older PF driver or firmware may not approve this 16817 * correctly. 16818 */ 16819 strict_approval = false; 16820 } else { 16821 eth_hw_addr_random(bp->dev); 16822 } 16823 rc = bnxt_approve_mac(bp, bp->dev->dev_addr, strict_approval); 16824 #endif 16825 } 16826 return rc; 16827 } 16828 16829 static void bnxt_vpd_read_info(struct bnxt *bp) 16830 { 16831 struct pci_dev *pdev = bp->pdev; 16832 unsigned int vpd_size, kw_len; 16833 int pos, size; 16834 u8 *vpd_data; 16835 16836 vpd_data = pci_vpd_alloc(pdev, &vpd_size); 16837 if (IS_ERR(vpd_data)) { 16838 pci_warn(pdev, "Unable to read VPD\n"); 16839 return; 16840 } 16841 16842 pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size, 16843 PCI_VPD_RO_KEYWORD_PARTNO, &kw_len); 16844 if (pos < 0) 16845 goto read_sn; 16846 16847 size = min_t(int, kw_len, BNXT_VPD_FLD_LEN - 1); 16848 memcpy(bp->board_partno, &vpd_data[pos], size); 16849 16850 read_sn: 16851 pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size, 16852 PCI_VPD_RO_KEYWORD_SERIALNO, 16853 &kw_len); 16854 if (pos < 0) 16855 goto exit; 16856 16857 size = min_t(int, kw_len, BNXT_VPD_FLD_LEN - 1); 16858 memcpy(bp->board_serialno, &vpd_data[pos], size); 16859 exit: 16860 kfree(vpd_data); 16861 } 16862 16863 static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[]) 16864 { 16865 struct pci_dev *pdev = bp->pdev; 16866 u64 qword; 16867 16868 qword = pci_get_dsn(pdev); 16869 if (!qword) { 16870 netdev_info(bp->dev, "Unable to read adapter's DSN\n"); 16871 return -EOPNOTSUPP; 16872 } 16873 16874 put_unaligned_le64(qword, dsn); 16875 16876 bp->flags |= BNXT_FLAG_DSN_VALID; 16877 return 0; 16878 } 16879 16880 static int bnxt_map_db_bar(struct bnxt *bp) 16881 { 16882 if (!bp->db_size) 16883 return -ENODEV; 16884 bp->bar1 = pci_iomap(bp->pdev, 2, bp->db_size); 16885 if (!bp->bar1) 16886 return -ENOMEM; 16887 return 0; 16888 } 16889 16890 void bnxt_print_device_info(struct bnxt *bp) 16891 { 16892 netdev_info(bp->dev, "%s found at mem %lx, node addr %pM\n", 16893 board_info[bp->board_idx].name, 16894 (long)pci_resource_start(bp->pdev, 0), bp->dev->dev_addr); 16895 16896 pcie_print_link_status(bp->pdev); 16897 } 16898 16899 static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 16900 { 16901 struct bnxt_hw_resc *hw_resc; 16902 struct net_device *dev; 16903 struct bnxt *bp; 16904 int rc, max_irqs; 16905 16906 if (pci_is_bridge(pdev)) 16907 return -ENODEV; 16908 16909 if (!pdev->msix_cap) { 16910 dev_err(&pdev->dev, "MSIX capability not found, aborting\n"); 16911 return -ENODEV; 16912 } 16913 16914 /* Clear any pending DMA transactions from crash kernel 16915 * while loading driver in capture kernel. 16916 */ 16917 if (is_kdump_kernel()) { 16918 pci_clear_master(pdev); 16919 pcie_flr(pdev); 16920 } 16921 16922 max_irqs = bnxt_get_max_irq(pdev); 16923 dev = alloc_etherdev_mqs(sizeof(*bp), max_irqs * BNXT_MAX_QUEUE, 16924 max_irqs); 16925 if (!dev) 16926 return -ENOMEM; 16927 16928 bp = netdev_priv(dev); 16929 bp->board_idx = ent->driver_data; 16930 bp->msg_enable = BNXT_DEF_MSG_ENABLE; 16931 bnxt_set_max_func_irqs(bp, max_irqs); 16932 16933 if (bnxt_vf_pciid(bp->board_idx)) 16934 bp->flags |= BNXT_FLAG_VF; 16935 16936 /* No devlink port registration in case of a VF */ 16937 if (BNXT_PF(bp)) 16938 SET_NETDEV_DEVLINK_PORT(dev, &bp->dl_port); 16939 16940 rc = bnxt_init_board(pdev, dev); 16941 if (rc < 0) 16942 goto init_err_free; 16943 16944 dev->netdev_ops = &bnxt_netdev_ops; 16945 dev->xdp_metadata_ops = &bnxt_xdp_metadata_ops; 16946 dev->stat_ops = &bnxt_stat_ops; 16947 dev->watchdog_timeo = BNXT_TX_TIMEOUT; 16948 dev->ethtool_ops = &bnxt_ethtool_ops; 16949 pci_set_drvdata(pdev, dev); 16950 16951 rc = bnxt_alloc_hwrm_resources(bp); 16952 if (rc) 16953 goto init_err_pci_clean; 16954 16955 mutex_init(&bp->hwrm_cmd_lock); 16956 mutex_init(&bp->link_lock); 16957 16958 rc = bnxt_fw_init_one_p1(bp); 16959 if (rc) 16960 goto init_err_pci_clean; 16961 16962 if (BNXT_PF(bp)) 16963 bnxt_vpd_read_info(bp); 16964 16965 if (BNXT_CHIP_P5_PLUS(bp)) { 16966 bp->flags |= BNXT_FLAG_CHIP_P5_PLUS; 16967 if (BNXT_CHIP_P7(bp)) 16968 bp->flags |= BNXT_FLAG_CHIP_P7; 16969 } 16970 16971 rc = bnxt_alloc_rss_indir_tbl(bp); 16972 if (rc) 16973 goto init_err_pci_clean; 16974 16975 rc = bnxt_fw_init_one_p2(bp); 16976 if (rc) 16977 goto init_err_pci_clean; 16978 16979 rc = bnxt_map_db_bar(bp); 16980 if (rc) { 16981 dev_err(&pdev->dev, "Cannot map doorbell BAR rc = %d, aborting\n", 16982 rc); 16983 goto init_err_pci_clean; 16984 } 16985 16986 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | 16987 NETIF_F_TSO | NETIF_F_TSO6 | 16988 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | 16989 NETIF_F_GSO_IPXIP4 | 16990 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | 16991 NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH | 16992 NETIF_F_RXCSUM | NETIF_F_GRO; 16993 dev->hw_features |= NETIF_F_GSO_UDP_L4; 16994 16995 if (BNXT_SUPPORTS_TPA(bp)) 16996 dev->hw_features |= NETIF_F_LRO; 16997 16998 dev->hw_enc_features = 16999 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | 17000 NETIF_F_TSO | NETIF_F_TSO6 | 17001 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | 17002 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | 17003 NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL; 17004 if (bp->flags & BNXT_FLAG_UDP_GSO_CAP) 17005 dev->hw_enc_features |= NETIF_F_GSO_UDP_L4; 17006 if (bp->flags & BNXT_FLAG_CHIP_P7) 17007 dev->udp_tunnel_nic_info = &bnxt_udp_tunnels_p7; 17008 else 17009 dev->udp_tunnel_nic_info = &bnxt_udp_tunnels; 17010 17011 dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM | 17012 NETIF_F_GSO_GRE_CSUM; 17013 dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA; 17014 if (bp->fw_cap & BNXT_FW_CAP_VLAN_RX_STRIP) 17015 dev->hw_features |= BNXT_HW_FEATURE_VLAN_ALL_RX; 17016 if (bp->fw_cap & BNXT_FW_CAP_VLAN_TX_INSERT) 17017 dev->hw_features |= BNXT_HW_FEATURE_VLAN_ALL_TX; 17018 if (BNXT_SUPPORTS_TPA(bp)) 17019 dev->hw_features |= NETIF_F_GRO_HW; 17020 dev->features |= dev->hw_features | NETIF_F_HIGHDMA; 17021 if (dev->features & NETIF_F_GRO_HW) 17022 dev->features &= ~NETIF_F_LRO; 17023 dev->priv_flags |= IFF_UNICAST_FLT; 17024 17025 netif_set_tso_max_size(dev, GSO_MAX_SIZE); 17026 if (!(bp->flags & BNXT_FLAG_UDP_GSO_CAP)) { 17027 u16 max_segs = BNXT_SW_USO_MAX_SEGS; 17028 17029 if (bp->tso_max_segs) 17030 max_segs = min_t(u16, max_segs, bp->tso_max_segs); 17031 netif_set_tso_max_segs(dev, max_segs); 17032 } else if (bp->tso_max_segs) { 17033 netif_set_tso_max_segs(dev, bp->tso_max_segs); 17034 } 17035 17036 dev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | 17037 NETDEV_XDP_ACT_RX_SG; 17038 17039 #ifdef CONFIG_BNXT_SRIOV 17040 init_waitqueue_head(&bp->sriov_cfg_wait); 17041 #endif 17042 if (BNXT_SUPPORTS_TPA(bp)) { 17043 bp->gro_func = bnxt_gro_func_5730x; 17044 if (BNXT_CHIP_P4(bp)) 17045 bp->gro_func = bnxt_gro_func_5731x; 17046 else if (BNXT_CHIP_P5_PLUS(bp)) 17047 bp->gro_func = bnxt_gro_func_5750x; 17048 } 17049 if (!BNXT_CHIP_P4_PLUS(bp)) 17050 bp->flags |= BNXT_FLAG_DOUBLE_DB; 17051 17052 rc = bnxt_init_mac_addr(bp); 17053 if (rc) { 17054 dev_err(&pdev->dev, "Unable to initialize mac address.\n"); 17055 rc = -EADDRNOTAVAIL; 17056 goto init_err_pci_clean; 17057 } 17058 17059 if (BNXT_PF(bp)) { 17060 /* Read the adapter's DSN to use as the eswitch switch_id */ 17061 rc = bnxt_pcie_dsn_get(bp, bp->dsn); 17062 } 17063 17064 /* MTU range: 60 - FW defined max */ 17065 dev->min_mtu = ETH_ZLEN; 17066 dev->max_mtu = bp->max_mtu; 17067 17068 rc = bnxt_probe_phy(bp, true); 17069 if (rc) 17070 goto init_err_pci_clean; 17071 17072 hw_resc = &bp->hw_resc; 17073 bp->max_fltr = hw_resc->max_rx_em_flows + hw_resc->max_rx_wm_flows + 17074 BNXT_L2_FLTR_MAX_FLTR; 17075 /* Older firmware may not report these filters properly */ 17076 if (bp->max_fltr < BNXT_MAX_FLTR) 17077 bp->max_fltr = BNXT_MAX_FLTR; 17078 bnxt_init_l2_fltr_tbl(bp); 17079 __bnxt_set_rx_skb_mode(bp, false); 17080 bnxt_set_tpa_flags(bp); 17081 bnxt_init_ring_params(bp); 17082 bnxt_set_ring_params(bp); 17083 mutex_init(&bp->auxdev_lock); 17084 if (!bnxt_auxdev_id_alloc(bp)) 17085 bnxt_aux_devices_init(bp); 17086 rc = bnxt_set_dflt_rings(bp, true); 17087 if (rc) { 17088 if (BNXT_VF(bp) && rc == -ENODEV) { 17089 netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n"); 17090 } else { 17091 netdev_err(bp->dev, "Not enough rings available.\n"); 17092 rc = -ENOMEM; 17093 } 17094 goto init_err_pci_clean; 17095 } 17096 17097 bnxt_fw_init_one_p3(bp); 17098 17099 bnxt_init_dflt_coal(bp); 17100 17101 if (dev->hw_features & BNXT_HW_FEATURE_VLAN_ALL_RX) 17102 bp->flags |= BNXT_FLAG_STRIP_VLAN; 17103 17104 rc = bnxt_init_int_mode(bp); 17105 if (rc) 17106 goto init_err_pci_clean; 17107 17108 /* No TC has been set yet and rings may have been trimmed due to 17109 * limited MSIX, so we re-initialize the TX rings per TC. 17110 */ 17111 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 17112 17113 if (BNXT_PF(bp)) { 17114 if (!bnxt_pf_wq) { 17115 bnxt_pf_wq = 17116 create_singlethread_workqueue("bnxt_pf_wq"); 17117 if (!bnxt_pf_wq) { 17118 dev_err(&pdev->dev, "Unable to create workqueue.\n"); 17119 rc = -ENOMEM; 17120 goto init_err_pci_clean; 17121 } 17122 } 17123 rc = bnxt_init_tc(bp); 17124 if (rc) 17125 netdev_err(dev, "Failed to initialize TC flower offload, err = %d.\n", 17126 rc); 17127 } 17128 17129 bnxt_inv_fw_health_reg(bp); 17130 rc = bnxt_dl_register(bp); 17131 if (rc) 17132 goto init_err_dl; 17133 17134 INIT_LIST_HEAD(&bp->usr_fltr_list); 17135 17136 if (BNXT_SUPPORTS_NTUPLE_VNIC(bp)) 17137 bp->rss_cap |= BNXT_RSS_CAP_MULTI_RSS_CTX; 17138 17139 dev->queue_mgmt_ops = &bnxt_queue_mgmt_ops_unsupp; 17140 if (BNXT_SUPPORTS_QUEUE_API(bp)) 17141 dev->queue_mgmt_ops = &bnxt_queue_mgmt_ops; 17142 dev->netmem_tx = NETMEM_TX_DMA; 17143 17144 rc = register_netdev(dev); 17145 if (rc) 17146 goto init_err_cleanup; 17147 17148 bnxt_dl_fw_reporters_create(bp); 17149 17150 bnxt_aux_devices_add(bp); 17151 17152 bnxt_print_device_info(bp); 17153 17154 pci_save_state(pdev); 17155 17156 return 0; 17157 init_err_cleanup: 17158 bnxt_aux_devices_uninit(bp); 17159 bnxt_auxdev_id_free(bp, bp->auxdev_id); 17160 bnxt_dl_unregister(bp); 17161 init_err_dl: 17162 bnxt_shutdown_tc(bp); 17163 bnxt_clear_int_mode(bp); 17164 17165 init_err_pci_clean: 17166 bnxt_hwrm_func_drv_unrgtr(bp); 17167 bnxt_ptp_clear(bp); 17168 kfree(bp->ptp_cfg); 17169 bp->ptp_cfg = NULL; 17170 bnxt_free_hwrm_resources(bp); 17171 bnxt_hwmon_uninit(bp); 17172 bnxt_ethtool_free(bp); 17173 kfree(bp->fw_health); 17174 bp->fw_health = NULL; 17175 bnxt_cleanup_pci(bp); 17176 bnxt_free_ctx_mem(bp, true); 17177 bnxt_free_crash_dump_mem(bp); 17178 kfree(bp->rss_indir_tbl); 17179 bp->rss_indir_tbl = NULL; 17180 17181 init_err_free: 17182 free_netdev(dev); 17183 return rc; 17184 } 17185 17186 static void bnxt_shutdown(struct pci_dev *pdev) 17187 { 17188 struct net_device *dev = pci_get_drvdata(pdev); 17189 struct bnxt *bp; 17190 17191 if (!dev) 17192 return; 17193 17194 rtnl_lock(); 17195 netdev_lock(dev); 17196 bp = netdev_priv(dev); 17197 if (!bp) 17198 goto shutdown_exit; 17199 17200 if (netif_running(dev)) 17201 netif_close(dev); 17202 17203 if (bnxt_hwrm_func_drv_unrgtr(bp)) { 17204 pcie_flr(pdev); 17205 goto shutdown_exit; 17206 } 17207 bnxt_ptp_clear(bp); 17208 bnxt_clear_int_mode(bp); 17209 pci_disable_device(pdev); 17210 17211 if (system_state == SYSTEM_POWER_OFF) { 17212 pci_wake_from_d3(pdev, bp->wol); 17213 pci_set_power_state(pdev, PCI_D3hot); 17214 } 17215 17216 shutdown_exit: 17217 netdev_unlock(dev); 17218 rtnl_unlock(); 17219 } 17220 17221 #ifdef CONFIG_PM_SLEEP 17222 static int bnxt_suspend(struct device *device) 17223 { 17224 struct net_device *dev = dev_get_drvdata(device); 17225 struct bnxt *bp = netdev_priv(dev); 17226 int rc = 0; 17227 17228 bnxt_ulp_stop(bp); 17229 17230 netdev_lock(dev); 17231 if (netif_running(dev)) { 17232 netif_device_detach(dev); 17233 rc = bnxt_close(dev); 17234 } 17235 bnxt_hwrm_func_drv_unrgtr(bp); 17236 bnxt_ptp_clear(bp); 17237 pci_disable_device(bp->pdev); 17238 bnxt_free_ctx_mem(bp, false); 17239 netdev_unlock(dev); 17240 return rc; 17241 } 17242 17243 static int bnxt_resume(struct device *device) 17244 { 17245 struct net_device *dev = dev_get_drvdata(device); 17246 struct bnxt *bp = netdev_priv(dev); 17247 int rc = 0; 17248 17249 rtnl_lock(); 17250 netdev_lock(dev); 17251 rc = pci_enable_device(bp->pdev); 17252 if (rc) { 17253 netdev_err(dev, "Cannot re-enable PCI device during resume, err = %d\n", 17254 rc); 17255 goto resume_exit; 17256 } 17257 pci_set_master(bp->pdev); 17258 if (bnxt_hwrm_ver_get(bp)) { 17259 rc = -ENODEV; 17260 goto resume_exit; 17261 } 17262 rc = bnxt_hwrm_func_reset(bp); 17263 if (rc) { 17264 rc = -EBUSY; 17265 goto resume_exit; 17266 } 17267 17268 rc = bnxt_hwrm_func_qcaps(bp); 17269 if (rc) 17270 goto resume_exit; 17271 17272 bnxt_clear_reservations(bp, true); 17273 17274 if (bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false)) { 17275 rc = -ENODEV; 17276 goto resume_exit; 17277 } 17278 if (bp->fw_crash_mem) 17279 bnxt_hwrm_crash_dump_mem_cfg(bp); 17280 17281 if (bnxt_ptp_init(bp)) { 17282 kfree(bp->ptp_cfg); 17283 bp->ptp_cfg = NULL; 17284 } 17285 bnxt_get_wol_settings(bp); 17286 if (netif_running(dev)) { 17287 rc = bnxt_open(dev); 17288 if (!rc) 17289 netif_device_attach(dev); 17290 } 17291 17292 resume_exit: 17293 netdev_unlock(bp->dev); 17294 rtnl_unlock(); 17295 if (!rc) { 17296 bnxt_ulp_start(bp); 17297 bnxt_reenable_sriov(bp); 17298 } 17299 return rc; 17300 } 17301 17302 static SIMPLE_DEV_PM_OPS(bnxt_pm_ops, bnxt_suspend, bnxt_resume); 17303 #define BNXT_PM_OPS (&bnxt_pm_ops) 17304 17305 #else 17306 17307 #define BNXT_PM_OPS NULL 17308 17309 #endif /* CONFIG_PM_SLEEP */ 17310 17311 /** 17312 * bnxt_io_error_detected - called when PCI error is detected 17313 * @pdev: Pointer to PCI device 17314 * @state: The current pci connection state 17315 * 17316 * This function is called after a PCI bus error affecting 17317 * this device has been detected. 17318 */ 17319 static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev, 17320 pci_channel_state_t state) 17321 { 17322 struct net_device *netdev = pci_get_drvdata(pdev); 17323 struct bnxt *bp = netdev_priv(netdev); 17324 bool abort = false; 17325 17326 netdev_info(netdev, "PCI I/O error detected\n"); 17327 17328 bnxt_ulp_stop(bp); 17329 17330 netdev_lock(netdev); 17331 netif_device_detach(netdev); 17332 17333 if (test_and_set_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 17334 netdev_err(bp->dev, "Firmware reset already in progress\n"); 17335 abort = true; 17336 } 17337 17338 if (abort || state == pci_channel_io_perm_failure) { 17339 netdev_unlock(netdev); 17340 return PCI_ERS_RESULT_DISCONNECT; 17341 } 17342 17343 /* Link is not reliable anymore if state is pci_channel_io_frozen 17344 * so we disable bus master to prevent any potential bad DMAs before 17345 * freeing kernel memory. 17346 */ 17347 if (state == pci_channel_io_frozen) { 17348 set_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN, &bp->state); 17349 bnxt_fw_fatal_close(bp); 17350 } 17351 17352 if (netif_running(netdev)) 17353 __bnxt_close_nic(bp, true, true); 17354 17355 if (pci_is_enabled(pdev)) 17356 pci_disable_device(pdev); 17357 bnxt_free_ctx_mem(bp, false); 17358 netdev_unlock(netdev); 17359 17360 /* Request a slot reset. */ 17361 return PCI_ERS_RESULT_NEED_RESET; 17362 } 17363 17364 /** 17365 * bnxt_io_slot_reset - called after the pci bus has been reset. 17366 * @pdev: Pointer to PCI device 17367 * 17368 * Restart the card from scratch, as if from a cold-boot. 17369 * At this point, the card has experienced a hard reset, 17370 * followed by fixups by BIOS, and has its config space 17371 * set up identically to what it was at cold boot. 17372 */ 17373 static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev) 17374 { 17375 pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT; 17376 struct net_device *netdev = pci_get_drvdata(pdev); 17377 struct bnxt *bp = netdev_priv(netdev); 17378 int retry = 0; 17379 int err = 0; 17380 int off; 17381 17382 netdev_info(bp->dev, "PCI Slot Reset\n"); 17383 17384 if (test_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN, &bp->state)) { 17385 /* After DPC, the chip should return CRS when the vendor ID 17386 * config register is read until it is ready. On all chips, 17387 * this is not happening reliably so add a 5-second delay as a 17388 * workaround. 17389 */ 17390 msleep(5000); 17391 } 17392 17393 netdev_lock(netdev); 17394 17395 if (pci_enable_device(pdev)) { 17396 dev_err(&pdev->dev, 17397 "Cannot re-enable PCI device after reset.\n"); 17398 } else { 17399 pci_set_master(pdev); 17400 /* Upon fatal error, our device internal logic that latches to 17401 * BAR value is getting reset and will restore only upon 17402 * rewriting the BARs. 17403 * 17404 * As pci_restore_state() does not re-write the BARs if the 17405 * value is same as saved value earlier, driver needs to 17406 * write the BARs to 0 to force restore, in case of fatal error. 17407 */ 17408 if (test_and_clear_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN, 17409 &bp->state)) { 17410 for (off = PCI_BASE_ADDRESS_0; 17411 off <= PCI_BASE_ADDRESS_5; off += 4) 17412 pci_write_config_dword(bp->pdev, off, 0); 17413 } 17414 pci_restore_state(pdev); 17415 17416 bnxt_inv_fw_health_reg(bp); 17417 bnxt_try_map_fw_health_reg(bp); 17418 17419 /* In some PCIe AER scenarios, firmware may take up to 17420 * 10 seconds to become ready in the worst case. 17421 */ 17422 do { 17423 err = bnxt_try_recover_fw(bp); 17424 if (!err) 17425 break; 17426 retry++; 17427 } while (retry < BNXT_FW_SLOT_RESET_RETRY); 17428 17429 if (err) { 17430 dev_err(&pdev->dev, "Firmware not ready\n"); 17431 goto reset_exit; 17432 } 17433 17434 err = bnxt_hwrm_func_reset(bp); 17435 if (!err) 17436 result = PCI_ERS_RESULT_RECOVERED; 17437 17438 /* IRQ will be initialized later in bnxt_io_resume */ 17439 bnxt_ulp_irq_stop(bp); 17440 bnxt_clear_int_mode(bp); 17441 } 17442 17443 reset_exit: 17444 clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); 17445 bnxt_clear_reservations(bp, true); 17446 netdev_unlock(netdev); 17447 17448 return result; 17449 } 17450 17451 /** 17452 * bnxt_io_resume - called when traffic can start flowing again. 17453 * @pdev: Pointer to PCI device 17454 * 17455 * This callback is called when the error recovery driver tells 17456 * us that its OK to resume normal operation. 17457 */ 17458 static void bnxt_io_resume(struct pci_dev *pdev) 17459 { 17460 struct net_device *netdev = pci_get_drvdata(pdev); 17461 struct bnxt *bp = netdev_priv(netdev); 17462 int err; 17463 17464 netdev_info(bp->dev, "PCI Slot Resume\n"); 17465 rtnl_lock(); 17466 netdev_lock(netdev); 17467 17468 err = bnxt_hwrm_func_qcaps(bp); 17469 if (!err) { 17470 if (netif_running(netdev)) { 17471 err = bnxt_open(netdev); 17472 } else { 17473 err = bnxt_reserve_rings(bp, true); 17474 if (!err) 17475 err = bnxt_init_int_mode(bp); 17476 } 17477 } 17478 17479 if (!err) 17480 netif_device_attach(netdev); 17481 17482 netdev_unlock(netdev); 17483 rtnl_unlock(); 17484 if (!err) { 17485 bnxt_ulp_start(bp); 17486 bnxt_reenable_sriov(bp); 17487 } 17488 } 17489 17490 static const struct pci_error_handlers bnxt_err_handler = { 17491 .error_detected = bnxt_io_error_detected, 17492 .slot_reset = bnxt_io_slot_reset, 17493 .resume = bnxt_io_resume 17494 }; 17495 17496 static struct pci_driver bnxt_pci_driver = { 17497 .name = DRV_MODULE_NAME, 17498 .id_table = bnxt_pci_tbl, 17499 .probe = bnxt_init_one, 17500 .remove = bnxt_remove_one, 17501 .shutdown = bnxt_shutdown, 17502 .driver.pm = BNXT_PM_OPS, 17503 .err_handler = &bnxt_err_handler, 17504 #if defined(CONFIG_BNXT_SRIOV) 17505 .sriov_configure = bnxt_sriov_configure, 17506 #endif 17507 }; 17508 17509 static int __init bnxt_init(void) 17510 { 17511 int err; 17512 17513 bnxt_debug_init(); 17514 err = pci_register_driver(&bnxt_pci_driver); 17515 if (err) { 17516 bnxt_debug_exit(); 17517 return err; 17518 } 17519 17520 return 0; 17521 } 17522 17523 static void __exit bnxt_exit(void) 17524 { 17525 pci_unregister_driver(&bnxt_pci_driver); 17526 if (bnxt_pf_wq) 17527 destroy_workqueue(bnxt_pf_wq); 17528 bnxt_debug_exit(); 17529 } 17530 17531 module_init(bnxt_init); 17532 module_exit(bnxt_exit); 17533