1 /******************************************************************************* 2 SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 4 Copyright (c) 2006-2013, Myricom Inc. 5 All rights reserved. 6 7 Redistribution and use in source and binary forms, with or without 8 modification, are permitted provided that the following conditions are met: 9 10 1. Redistributions of source code must retain the above copyright notice, 11 this list of conditions and the following disclaimer. 12 13 2. Neither the name of the Myricom Inc, nor the names of its 14 contributors may be used to endorse or promote products derived from 15 this software without specific prior written permission. 16 17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 POSSIBILITY OF SUCH DAMAGE. 28 29 $FreeBSD$ 30 31 ***************************************************************************/ 32 33 #define MXGE_ETH_STOPPED 0 34 #define MXGE_ETH_STOPPING 1 35 #define MXGE_ETH_STARTING 2 36 #define MXGE_ETH_RUNNING 3 37 #define MXGE_ETH_OPEN_FAILED 4 38 39 #define MXGE_FW_OFFSET 1024*1024 40 #define MXGE_EEPROM_STRINGS_SIZE 256 41 #define MXGE_MAX_SEND_DESC 128 42 43 #if ((__FreeBSD_version > 800000 && __FreeBSD_version < 800005) \ 44 || __FreeBSD_version < 700111) 45 #define MXGE_VIRT_JUMBOS 1 46 #else 47 #define MXGE_VIRT_JUMBOS 0 48 #endif 49 50 #if (__FreeBSD_version > 800082) 51 #define IFNET_BUF_RING 1 52 #endif 53 54 #if (__FreeBSD_version < 1000020) 55 #undef IF_Kbps 56 #undef IF_Mbps 57 #undef IF_Gbps 58 #define IF_Kbps(x) ((uintmax_t)(x) * 1000) /* kilobits/sec. */ 59 #define IF_Mbps(x) (IF_Kbps((x) * 1000)) /* megabits/sec. */ 60 #define IF_Gbps(x) (IF_Mbps((x) * 1000)) /* gigabits/sec. */ 61 #endif 62 63 #ifndef VLAN_CAPABILITIES 64 #define VLAN_CAPABILITIES(ifp) 65 #define mxge_vlans_active(sc) (sc)->ifp->if_nvlans 66 #else 67 #define mxge_vlans_active(sc) (sc)->ifp->if_vlantrunk 68 #endif 69 70 #ifndef VLAN_TAG_VALUE 71 #define MXGE_NEW_VLAN_API 72 #endif 73 74 #ifndef IFCAP_LRO 75 #define IFCAP_LRO 0 76 #endif 77 78 #ifndef IFCAP_TSO 79 #define IFCAP_TSO 0 80 #endif 81 82 #ifndef IFCAP_TSO4 83 #define IFCAP_TSO4 0 84 #endif 85 86 #ifndef IFCAP_TSO6 87 #define IFCAP_TSO6 0 88 #endif 89 90 #ifndef IFCAP_TXCSUM_IPV6 91 #define IFCAP_TXCSUM_IPV6 0 92 #endif 93 94 #ifndef IFCAP_RXCSUM_IPV6 95 #define IFCAP_RXCSUM_IPV6 0 96 #endif 97 98 #ifndef CSUM_TSO 99 #define CSUM_TSO 0 100 #endif 101 102 #ifndef CSUM_TCP_IPV6 103 #define CSUM_TCP_IPV6 0 104 #endif 105 106 #ifndef CSUM_UDP_IPV6 107 #define CSUM_UDP_IPV6 0 108 #endif 109 110 #ifndef CSUM_DELAY_DATA_IPV6 111 #define CSUM_DELAY_DATA_IPV6 0 112 #endif 113 114 typedef struct { 115 void *addr; 116 bus_addr_t bus_addr; 117 bus_dma_tag_t dmat; 118 bus_dmamap_t map; 119 } mxge_dma_t; 120 121 122 typedef struct { 123 mcp_slot_t *entry; 124 mxge_dma_t dma; 125 int cnt; 126 int idx; 127 int mask; 128 } mxge_rx_done_t; 129 130 typedef struct 131 { 132 uint32_t data0; 133 uint32_t data1; 134 uint32_t data2; 135 } mxge_cmd_t; 136 137 struct mxge_rx_buffer_state { 138 struct mbuf *m; 139 bus_dmamap_t map; 140 }; 141 142 struct mxge_tx_buffer_state { 143 struct mbuf *m; 144 bus_dmamap_t map; 145 int flag; 146 }; 147 148 typedef struct 149 { 150 volatile mcp_kreq_ether_recv_t *lanai; /* lanai ptr for recv ring */ 151 mcp_kreq_ether_recv_t *shadow; /* host shadow of recv ring */ 152 struct mxge_rx_buffer_state *info; 153 bus_dma_tag_t dmat; 154 bus_dmamap_t extra_map; 155 int cnt; 156 int nbufs; 157 int cl_size; 158 int alloc_fail; 159 int mask; /* number of rx slots -1 */ 160 int mlen; 161 } mxge_rx_ring_t; 162 163 typedef struct 164 { 165 struct mtx mtx; 166 #ifdef IFNET_BUF_RING 167 struct buf_ring *br; 168 #endif 169 volatile mcp_kreq_ether_send_t *lanai; /* lanai ptr for sendq */ 170 volatile uint32_t *send_go; /* doorbell for sendq */ 171 volatile uint32_t *send_stop; /* doorbell for sendq */ 172 mcp_kreq_ether_send_t *req_list; /* host shadow of sendq */ 173 char *req_bytes; 174 bus_dma_segment_t *seg_list; 175 struct mxge_tx_buffer_state *info; 176 bus_dma_tag_t dmat; 177 int req; /* transmits submitted */ 178 int mask; /* number of transmit slots -1 */ 179 int done; /* transmits completed */ 180 int pkt_done; /* packets completed */ 181 int max_desc; /* max descriptors per xmit */ 182 int queue_active; /* fw currently polling this queue*/ 183 int activate; 184 int deactivate; 185 int stall; /* #times hw queue exhausted */ 186 int wake; /* #times irq re-enabled xmit */ 187 int watchdog_req; /* cache of req */ 188 int watchdog_done; /* cache of done */ 189 int watchdog_rx_pause; /* cache of pause rq recvd */ 190 int defrag; 191 char mtx_name[16]; 192 } mxge_tx_ring_t; 193 194 struct mxge_softc; 195 typedef struct mxge_softc mxge_softc_t; 196 197 struct mxge_slice_state { 198 mxge_softc_t *sc; 199 mxge_tx_ring_t tx; /* transmit ring */ 200 mxge_rx_ring_t rx_small; 201 mxge_rx_ring_t rx_big; 202 mxge_rx_done_t rx_done; 203 mcp_irq_data_t *fw_stats; 204 volatile uint32_t *irq_claim; 205 u_long ipackets; 206 u_long opackets; 207 u_long obytes; 208 u_long omcasts; 209 u_long oerrors; 210 int if_drv_flags; 211 struct lro_ctrl lc; 212 mxge_dma_t fw_stats_dma; 213 struct sysctl_oid *sysctl_tree; 214 struct sysctl_ctx_list sysctl_ctx; 215 char scratch[256]; 216 }; 217 218 struct mxge_softc { 219 struct ifnet* ifp; 220 struct mxge_slice_state *ss; 221 int tx_boundary; /* boundary transmits cannot cross*/ 222 int lro_cnt; 223 bus_dma_tag_t parent_dmat; 224 volatile uint8_t *sram; 225 int sram_size; 226 volatile uint32_t *irq_deassert; 227 mcp_cmd_response_t *cmd; 228 mxge_dma_t cmd_dma; 229 mxge_dma_t zeropad_dma; 230 struct pci_dev *pdev; 231 int legacy_irq; 232 int link_state; 233 unsigned int rdma_tags_available; 234 int intr_coal_delay; 235 volatile uint32_t *intr_coal_delay_ptr; 236 int wc; 237 struct mtx cmd_mtx; 238 struct mtx driver_mtx; 239 int wake_queue; 240 int stop_queue; 241 int down_cnt; 242 int watchdog_resets; 243 int watchdog_countdown; 244 int pause; 245 struct resource *mem_res; 246 struct resource *irq_res; 247 struct resource **msix_irq_res; 248 struct resource *msix_table_res; 249 struct resource *msix_pba_res; 250 void *ih; 251 void **msix_ih; 252 char *fw_name; 253 char eeprom_strings[MXGE_EEPROM_STRINGS_SIZE]; 254 char fw_version[128]; 255 int fw_ver_major; 256 int fw_ver_minor; 257 int fw_ver_tiny; 258 int adopted_rx_filter_bug; 259 device_t dev; 260 struct ifmedia media; 261 int read_dma; 262 int write_dma; 263 int read_write_dma; 264 int fw_multicast_support; 265 int link_width; 266 int max_mtu; 267 int throttle; 268 int tx_defrag; 269 int media_flags; 270 int need_media_probe; 271 int num_slices; 272 int rx_ring_size; 273 int dying; 274 int connector; 275 int current_media; 276 int max_tso6_hlen; 277 mxge_dma_t dmabench_dma; 278 struct callout co_hdl; 279 struct taskqueue *tq; 280 struct task watchdog_task; 281 struct sysctl_oid *slice_sysctl_tree; 282 struct sysctl_ctx_list slice_sysctl_ctx; 283 char *mac_addr_string; 284 uint8_t mac_addr[6]; /* eeprom mac address */ 285 uint16_t pectl; /* save PCIe CTL state */ 286 char product_code_string[64]; 287 char serial_number_string[64]; 288 char cmd_mtx_name[16]; 289 char driver_mtx_name[16]; 290 }; 291 292 #define MXGE_PCI_VENDOR_MYRICOM 0x14c1 293 #define MXGE_PCI_DEVICE_Z8E 0x0008 294 #define MXGE_PCI_DEVICE_Z8E_9 0x0009 295 #define MXGE_PCI_REV_Z8E 0 296 #define MXGE_PCI_REV_Z8ES 1 297 #define MXGE_XFP_COMPLIANCE_BYTE 131 298 #define MXGE_SFP_COMPLIANCE_BYTE 3 299 #define MXGE_MIN_THROTTLE 416 300 #define MXGE_MAX_THROTTLE 4096 301 302 /* Types of connectors on NICs supported by this driver */ 303 #define MXGE_CX4 0 304 #define MXGE_XFP 1 305 #define MXGE_SFP 2 306 #define MXGE_QRF 3 307 308 #define MXGE_HIGHPART_TO_U32(X) \ 309 (sizeof (X) == 8) ? ((uint32_t)((uint64_t)(X) >> 32)) : (0) 310 #define MXGE_LOWPART_TO_U32(X) ((uint32_t)(X)) 311 312 struct mxge_media_type 313 { 314 int flag; 315 uint8_t bitmask; 316 char *name; 317 }; 318 319 struct mxge_pkt_info { 320 int ip_off; 321 int ip_hlen; 322 struct ip *ip; 323 struct ip6_hdr *ip6; 324 struct tcphdr *tcp; 325 }; 326 327 328 /* implement our own memory barriers, since bus_space_barrier 329 cannot handle write-combining regions */ 330 331 #if __FreeBSD_version < 800053 332 333 #if defined (__GNUC__) 334 #if #cpu(i386) || defined __i386 || defined i386 || defined __i386__ || #cpu(x86_64) || defined __x86_64__ 335 #define wmb() __asm__ __volatile__ ("sfence;": : :"memory") 336 #elif #cpu(sparc64) || defined sparc64 || defined __sparcv9 337 #define wmb() __asm__ __volatile__ ("membar #MemIssue": : :"memory") 338 #elif #cpu(sparc) || defined sparc || defined __sparc__ 339 #define wmb() __asm__ __volatile__ ("stbar;": : :"memory") 340 #else 341 #define wmb() /* XXX just to make this compile */ 342 #endif 343 #else 344 #error "unknown compiler" 345 #endif 346 347 #endif 348 349 static inline void 350 mxge_pio_copy(volatile void *to_v, void *from_v, size_t size) 351 { 352 register volatile uintptr_t *to; 353 volatile uintptr_t *from; 354 size_t i; 355 356 to = (volatile uintptr_t *) to_v; 357 from = from_v; 358 for (i = (size / sizeof (uintptr_t)); i; i--) { 359 *to = *from; 360 to++; 361 from++; 362 } 363 364 } 365 366 void mxge_lro_flush(struct mxge_slice_state *ss, struct lro_entry *lro); 367 int mxge_lro_rx(struct mxge_slice_state *ss, struct mbuf *m_head, 368 uint32_t csum); 369 370 371 372 /* 373 This file uses Myri10GE driver indentation. 374 375 Local Variables: 376 c-file-style:"linux" 377 tab-width:8 378 End: 379 */ 380