1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2 /* Copyright (C) 2015-2018 Netronome Systems, Inc. */ 3 4 /* 5 * nfp_net_ethtool.c 6 * Netronome network device driver: ethtool support 7 * Authors: Jakub Kicinski <jakub.kicinski@netronome.com> 8 * Jason McMullan <jason.mcmullan@netronome.com> 9 * Rolf Neugebauer <rolf.neugebauer@netronome.com> 10 * Brad Petrus <brad.petrus@netronome.com> 11 */ 12 13 #include <linux/bitfield.h> 14 #include <linux/kernel.h> 15 #include <linux/netdevice.h> 16 #include <linux/etherdevice.h> 17 #include <linux/interrupt.h> 18 #include <linux/pci.h> 19 #include <linux/ethtool.h> 20 #include <linux/firmware.h> 21 #include <linux/sfp.h> 22 23 #include "nfpcore/nfp.h" 24 #include "nfpcore/nfp_dev.h" 25 #include "nfpcore/nfp_nsp.h" 26 #include "nfp_app.h" 27 #include "nfp_main.h" 28 #include "nfp_net_ctrl.h" 29 #include "nfp_net_dp.h" 30 #include "nfp_net.h" 31 #include "nfp_port.h" 32 #include "nfpcore/nfp_cpp.h" 33 34 struct nfp_et_stat { 35 char name[ETH_GSTRING_LEN]; 36 int off; 37 }; 38 39 static const struct nfp_et_stat nfp_net_et_stats[] = { 40 /* Stats from the device */ 41 { "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS }, 42 { "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS }, 43 { "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS }, 44 { "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS }, 45 { "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS }, 46 { "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS }, 47 { "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES }, 48 { "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES }, 49 { "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES }, 50 51 { "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS }, 52 { "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS }, 53 { "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS }, 54 { "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS }, 55 { "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS }, 56 { "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS }, 57 { "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES }, 58 { "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES }, 59 { "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES }, 60 61 { "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES }, 62 { "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES }, 63 /* see comments in outro functions in nfp_bpf_jit.c to find out 64 * how different BPF modes use app-specific counters 65 */ 66 { "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES }, 67 { "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES }, 68 { "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES }, 69 { "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES }, 70 { "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES }, 71 { "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES }, 72 }; 73 74 static const struct nfp_et_stat nfp_mac_et_stats[] = { 75 { "rx_octets", NFP_MAC_STATS_RX_IN_OCTETS, }, 76 { "rx_frame_too_long_errors", 77 NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS, }, 78 { "rx_range_length_errors", NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS, }, 79 { "rx_vlan_received_ok", NFP_MAC_STATS_RX_VLAN_RECEIVED_OK, }, 80 { "rx_errors", NFP_MAC_STATS_RX_IN_ERRORS, }, 81 { "rx_broadcast_pkts", NFP_MAC_STATS_RX_IN_BROADCAST_PKTS, }, 82 { "rx_drop_events", NFP_MAC_STATS_RX_DROP_EVENTS, }, 83 { "rx_alignment_errors", NFP_MAC_STATS_RX_ALIGNMENT_ERRORS, }, 84 { "rx_pause_mac_ctrl_frames", 85 NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES, }, 86 { "rx_frames_received_ok", NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK, }, 87 { "rx_frame_check_sequence_errors", 88 NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS, }, 89 { "rx_unicast_pkts", NFP_MAC_STATS_RX_UNICAST_PKTS, }, 90 { "rx_multicast_pkts", NFP_MAC_STATS_RX_MULTICAST_PKTS, }, 91 { "rx_pkts", NFP_MAC_STATS_RX_PKTS, }, 92 { "rx_undersize_pkts", NFP_MAC_STATS_RX_UNDERSIZE_PKTS, }, 93 { "rx_pkts_64_octets", NFP_MAC_STATS_RX_PKTS_64_OCTETS, }, 94 { "rx_pkts_65_to_127_octets", 95 NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS, }, 96 { "rx_pkts_128_to_255_octets", 97 NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS, }, 98 { "rx_pkts_256_to_511_octets", 99 NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS, }, 100 { "rx_pkts_512_to_1023_octets", 101 NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS, }, 102 { "rx_pkts_1024_to_1518_octets", 103 NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS, }, 104 { "rx_pkts_1519_to_max_octets", 105 NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS, }, 106 { "rx_jabbers", NFP_MAC_STATS_RX_JABBERS, }, 107 { "rx_fragments", NFP_MAC_STATS_RX_FRAGMENTS, }, 108 { "rx_oversize_pkts", NFP_MAC_STATS_RX_OVERSIZE_PKTS, }, 109 { "rx_pause_frames_class0", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0, }, 110 { "rx_pause_frames_class1", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1, }, 111 { "rx_pause_frames_class2", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2, }, 112 { "rx_pause_frames_class3", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3, }, 113 { "rx_pause_frames_class4", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4, }, 114 { "rx_pause_frames_class5", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5, }, 115 { "rx_pause_frames_class6", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6, }, 116 { "rx_pause_frames_class7", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7, }, 117 { "rx_mac_ctrl_frames_received", 118 NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED, }, 119 { "rx_mac_head_drop", NFP_MAC_STATS_RX_MAC_HEAD_DROP, }, 120 { "tx_queue_drop", NFP_MAC_STATS_TX_QUEUE_DROP, }, 121 { "tx_octets", NFP_MAC_STATS_TX_OUT_OCTETS, }, 122 { "tx_vlan_transmitted_ok", NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK, }, 123 { "tx_errors", NFP_MAC_STATS_TX_OUT_ERRORS, }, 124 { "tx_broadcast_pkts", NFP_MAC_STATS_TX_BROADCAST_PKTS, }, 125 { "tx_pause_mac_ctrl_frames", 126 NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES, }, 127 { "tx_frames_transmitted_ok", 128 NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK, }, 129 { "tx_unicast_pkts", NFP_MAC_STATS_TX_UNICAST_PKTS, }, 130 { "tx_multicast_pkts", NFP_MAC_STATS_TX_MULTICAST_PKTS, }, 131 { "tx_pkts_64_octets", NFP_MAC_STATS_TX_PKTS_64_OCTETS, }, 132 { "tx_pkts_65_to_127_octets", 133 NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS, }, 134 { "tx_pkts_128_to_255_octets", 135 NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS, }, 136 { "tx_pkts_256_to_511_octets", 137 NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS, }, 138 { "tx_pkts_512_to_1023_octets", 139 NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS, }, 140 { "tx_pkts_1024_to_1518_octets", 141 NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS, }, 142 { "tx_pkts_1519_to_max_octets", 143 NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS, }, 144 { "tx_pause_frames_class0", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0, }, 145 { "tx_pause_frames_class1", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1, }, 146 { "tx_pause_frames_class2", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2, }, 147 { "tx_pause_frames_class3", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3, }, 148 { "tx_pause_frames_class4", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4, }, 149 { "tx_pause_frames_class5", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5, }, 150 { "tx_pause_frames_class6", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6, }, 151 { "tx_pause_frames_class7", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7, }, 152 }; 153 154 static const char nfp_tlv_stat_names[][ETH_GSTRING_LEN] = { 155 [1] = "dev_rx_discards", 156 [2] = "dev_rx_errors", 157 [3] = "dev_rx_bytes", 158 [4] = "dev_rx_uc_bytes", 159 [5] = "dev_rx_mc_bytes", 160 [6] = "dev_rx_bc_bytes", 161 [7] = "dev_rx_pkts", 162 [8] = "dev_rx_mc_pkts", 163 [9] = "dev_rx_bc_pkts", 164 165 [10] = "dev_tx_discards", 166 [11] = "dev_tx_errors", 167 [12] = "dev_tx_bytes", 168 [13] = "dev_tx_uc_bytes", 169 [14] = "dev_tx_mc_bytes", 170 [15] = "dev_tx_bc_bytes", 171 [16] = "dev_tx_pkts", 172 [17] = "dev_tx_mc_pkts", 173 [18] = "dev_tx_bc_pkts", 174 }; 175 176 #define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats) 177 #define NN_ET_SWITCH_STATS_LEN 9 178 #define NN_RVEC_GATHER_STATS 13 179 #define NN_RVEC_PER_Q_STATS 3 180 #define NN_CTRL_PATH_STATS 4 181 182 #define SFP_SFF_REV_COMPLIANCE 1 183 184 static void nfp_net_get_nspinfo(struct nfp_app *app, char *version) 185 { 186 struct nfp_nsp *nsp; 187 188 if (!app) 189 return; 190 191 nsp = nfp_nsp_open(app->cpp); 192 if (IS_ERR(nsp)) 193 return; 194 195 snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu", 196 nfp_nsp_get_abi_ver_major(nsp), 197 nfp_nsp_get_abi_ver_minor(nsp)); 198 199 nfp_nsp_close(nsp); 200 } 201 202 static void 203 nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev, 204 const char *vnic_version, struct ethtool_drvinfo *drvinfo) 205 { 206 char nsp_version[ETHTOOL_FWVERS_LEN] = {}; 207 208 strscpy(drvinfo->driver, dev_driver_string(&pdev->dev), 209 sizeof(drvinfo->driver)); 210 nfp_net_get_nspinfo(app, nsp_version); 211 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 212 "%s %s %s %s", vnic_version, nsp_version, 213 nfp_app_mip_name(app), nfp_app_name(app)); 214 } 215 216 static void 217 nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) 218 { 219 char vnic_version[ETHTOOL_FWVERS_LEN] = {}; 220 struct nfp_net *nn = netdev_priv(netdev); 221 222 snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d", 223 nn->fw_ver.extend, nn->fw_ver.class, 224 nn->fw_ver.major, nn->fw_ver.minor); 225 strscpy(drvinfo->bus_info, pci_name(nn->pdev), 226 sizeof(drvinfo->bus_info)); 227 228 nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo); 229 } 230 231 static int 232 nfp_net_nway_reset(struct net_device *netdev) 233 { 234 struct nfp_eth_table_port *eth_port; 235 struct nfp_port *port; 236 int err; 237 238 port = nfp_port_from_netdev(netdev); 239 eth_port = nfp_port_get_eth_port(port); 240 if (!eth_port) 241 return -EOPNOTSUPP; 242 243 if (!netif_running(netdev)) 244 return 0; 245 246 err = nfp_eth_set_configured(port->app->cpp, eth_port->index, false); 247 if (err) { 248 netdev_info(netdev, "Link down failed: %d\n", err); 249 return err; 250 } 251 252 err = nfp_eth_set_configured(port->app->cpp, eth_port->index, true); 253 if (err) { 254 netdev_info(netdev, "Link up failed: %d\n", err); 255 return err; 256 } 257 258 netdev_info(netdev, "Link reset succeeded\n"); 259 return 0; 260 } 261 262 static void 263 nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) 264 { 265 struct nfp_app *app = nfp_app_from_netdev(netdev); 266 267 strscpy(drvinfo->bus_info, pci_name(app->pdev), 268 sizeof(drvinfo->bus_info)); 269 nfp_get_drvinfo(app, app->pdev, "*", drvinfo); 270 } 271 272 static void 273 nfp_net_set_fec_link_mode(struct nfp_eth_table_port *eth_port, 274 struct ethtool_link_ksettings *c) 275 { 276 unsigned int modes; 277 278 ethtool_link_ksettings_add_link_mode(c, supported, FEC_NONE); 279 if (!nfp_eth_can_support_fec(eth_port)) { 280 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_NONE); 281 return; 282 } 283 284 modes = nfp_eth_supported_fec_modes(eth_port); 285 if (modes & NFP_FEC_BASER) { 286 ethtool_link_ksettings_add_link_mode(c, supported, FEC_BASER); 287 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_BASER); 288 } 289 290 if (modes & NFP_FEC_REED_SOLOMON) { 291 ethtool_link_ksettings_add_link_mode(c, supported, FEC_RS); 292 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_RS); 293 } 294 } 295 296 static const struct nfp_eth_media_link_mode { 297 u16 ethtool_link_mode; 298 u16 speed; 299 } nfp_eth_media_table[NFP_MEDIA_LINK_MODES_NUMBER] = { 300 [NFP_MEDIA_1000BASE_CX] = { 301 .ethtool_link_mode = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 302 .speed = NFP_SPEED_1G, 303 }, 304 [NFP_MEDIA_1000BASE_KX] = { 305 .ethtool_link_mode = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 306 .speed = NFP_SPEED_1G, 307 }, 308 [NFP_MEDIA_10GBASE_KX4] = { 309 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 310 .speed = NFP_SPEED_10G, 311 }, 312 [NFP_MEDIA_10GBASE_KR] = { 313 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 314 .speed = NFP_SPEED_10G, 315 }, 316 [NFP_MEDIA_10GBASE_LR] = { 317 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseLR_Full_BIT, 318 .speed = NFP_SPEED_10G, 319 }, 320 [NFP_MEDIA_10GBASE_CX4] = { 321 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 322 .speed = NFP_SPEED_10G, 323 }, 324 [NFP_MEDIA_10GBASE_CR] = { 325 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseCR_Full_BIT, 326 .speed = NFP_SPEED_10G, 327 }, 328 [NFP_MEDIA_10GBASE_SR] = { 329 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseSR_Full_BIT, 330 .speed = NFP_SPEED_10G, 331 }, 332 [NFP_MEDIA_10GBASE_ER] = { 333 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseER_Full_BIT, 334 .speed = NFP_SPEED_10G, 335 }, 336 [NFP_MEDIA_25GBASE_KR] = { 337 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, 338 .speed = NFP_SPEED_25G, 339 }, 340 [NFP_MEDIA_25GBASE_KR_S] = { 341 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, 342 .speed = NFP_SPEED_25G, 343 }, 344 [NFP_MEDIA_25GBASE_CR] = { 345 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 346 .speed = NFP_SPEED_25G, 347 }, 348 [NFP_MEDIA_25GBASE_CR_S] = { 349 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 350 .speed = NFP_SPEED_25G, 351 }, 352 [NFP_MEDIA_25GBASE_SR] = { 353 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, 354 .speed = NFP_SPEED_25G, 355 }, 356 [NFP_MEDIA_25GBASE_LR] = { 357 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, 358 .speed = NFP_SPEED_25G, 359 }, 360 [NFP_MEDIA_25GBASE_ER] = { 361 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, 362 .speed = NFP_SPEED_25G, 363 }, 364 [NFP_MEDIA_40GBASE_CR4] = { 365 .ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, 366 .speed = NFP_SPEED_40G, 367 }, 368 [NFP_MEDIA_40GBASE_KR4] = { 369 .ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 370 .speed = NFP_SPEED_40G, 371 }, 372 [NFP_MEDIA_40GBASE_SR4] = { 373 .ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, 374 .speed = NFP_SPEED_40G, 375 }, 376 [NFP_MEDIA_40GBASE_LR4] = { 377 .ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, 378 .speed = NFP_SPEED_40G, 379 }, 380 [NFP_MEDIA_50GBASE_KR] = { 381 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseKR_Full_BIT, 382 .speed = NFP_SPEED_50G, 383 }, 384 [NFP_MEDIA_50GBASE_SR] = { 385 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseSR_Full_BIT, 386 .speed = NFP_SPEED_50G, 387 }, 388 [NFP_MEDIA_50GBASE_CR] = { 389 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseCR_Full_BIT, 390 .speed = NFP_SPEED_50G, 391 }, 392 [NFP_MEDIA_50GBASE_LR] = { 393 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, 394 .speed = NFP_SPEED_50G, 395 }, 396 [NFP_MEDIA_50GBASE_ER] = { 397 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, 398 .speed = NFP_SPEED_50G, 399 }, 400 [NFP_MEDIA_50GBASE_FR] = { 401 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, 402 .speed = NFP_SPEED_50G, 403 }, 404 [NFP_MEDIA_100GBASE_KR4] = { 405 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, 406 .speed = NFP_SPEED_100G, 407 }, 408 [NFP_MEDIA_100GBASE_SR4] = { 409 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, 410 .speed = NFP_SPEED_100G, 411 }, 412 [NFP_MEDIA_100GBASE_CR4] = { 413 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, 414 .speed = NFP_SPEED_100G, 415 }, 416 [NFP_MEDIA_100GBASE_KP4] = { 417 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, 418 .speed = NFP_SPEED_100G, 419 }, 420 [NFP_MEDIA_100GBASE_CR10] = { 421 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, 422 .speed = NFP_SPEED_100G, 423 }, 424 }; 425 426 static const unsigned int nfp_eth_speed_map[NFP_SUP_SPEED_NUMBER] = { 427 [NFP_SPEED_1G] = SPEED_1000, 428 [NFP_SPEED_10G] = SPEED_10000, 429 [NFP_SPEED_25G] = SPEED_25000, 430 [NFP_SPEED_40G] = SPEED_40000, 431 [NFP_SPEED_50G] = SPEED_50000, 432 [NFP_SPEED_100G] = SPEED_100000, 433 }; 434 435 static void nfp_add_media_link_mode(struct nfp_port *port, 436 struct nfp_eth_table_port *eth_port, 437 struct ethtool_link_ksettings *cmd) 438 { 439 bitmap_zero(port->speed_bitmap, NFP_SUP_SPEED_NUMBER); 440 441 for (u32 i = 0; i < NFP_MEDIA_LINK_MODES_NUMBER; i++) { 442 if (i < 64) { 443 if (eth_port->link_modes_supp[0] & BIT_ULL(i)) { 444 __set_bit(nfp_eth_media_table[i].ethtool_link_mode, 445 cmd->link_modes.supported); 446 __set_bit(nfp_eth_media_table[i].speed, 447 port->speed_bitmap); 448 } 449 450 if (eth_port->link_modes_ad[0] & BIT_ULL(i)) 451 __set_bit(nfp_eth_media_table[i].ethtool_link_mode, 452 cmd->link_modes.advertising); 453 } else { 454 if (eth_port->link_modes_supp[1] & BIT_ULL(i - 64)) { 455 __set_bit(nfp_eth_media_table[i].ethtool_link_mode, 456 cmd->link_modes.supported); 457 __set_bit(nfp_eth_media_table[i].speed, 458 port->speed_bitmap); 459 } 460 461 if (eth_port->link_modes_ad[1] & BIT_ULL(i - 64)) 462 __set_bit(nfp_eth_media_table[i].ethtool_link_mode, 463 cmd->link_modes.advertising); 464 } 465 } 466 467 /* We take all speeds as supported when it fails to read 468 * link modes due to old management firmware that doesn't 469 * support link modes reading or error occurring, so that 470 * speed change of this port is allowed. 471 */ 472 if (bitmap_empty(port->speed_bitmap, NFP_SUP_SPEED_NUMBER)) 473 bitmap_fill(port->speed_bitmap, NFP_SUP_SPEED_NUMBER); 474 } 475 476 /** 477 * nfp_net_get_link_ksettings - Get Link Speed settings 478 * @netdev: network interface device structure 479 * @cmd: ethtool command 480 * 481 * Reports speed settings based on info in the BAR provided by the fw. 482 */ 483 static int 484 nfp_net_get_link_ksettings(struct net_device *netdev, 485 struct ethtool_link_ksettings *cmd) 486 { 487 struct nfp_eth_table_port *eth_port; 488 struct nfp_port *port; 489 struct nfp_net *nn; 490 unsigned int speed; 491 u16 sts; 492 493 /* Init to unknowns */ 494 ethtool_link_ksettings_zero_link_mode(cmd, supported); 495 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 496 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 497 cmd->base.port = PORT_OTHER; 498 cmd->base.speed = SPEED_UNKNOWN; 499 cmd->base.duplex = DUPLEX_UNKNOWN; 500 501 port = nfp_port_from_netdev(netdev); 502 eth_port = nfp_port_get_eth_port(port); 503 if (eth_port) { 504 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 505 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 506 nfp_add_media_link_mode(port, eth_port, cmd); 507 if (eth_port->supp_aneg) { 508 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 509 if (eth_port->aneg == NFP_ANEG_AUTO) { 510 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 511 cmd->base.autoneg = AUTONEG_ENABLE; 512 } 513 } 514 nfp_net_set_fec_link_mode(eth_port, cmd); 515 } 516 517 if (!netif_carrier_ok(netdev)) 518 return 0; 519 520 /* Use link speed from ETH table if available, otherwise try the BAR */ 521 if (eth_port) { 522 cmd->base.port = eth_port->port_type; 523 cmd->base.speed = eth_port->speed; 524 cmd->base.duplex = DUPLEX_FULL; 525 return 0; 526 } 527 528 if (!nfp_netdev_is_nfp_net(netdev)) 529 return -EOPNOTSUPP; 530 nn = netdev_priv(netdev); 531 532 sts = nn_readw(nn, NFP_NET_CFG_STS); 533 speed = nfp_net_lr2speed(FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts)); 534 if (!speed) 535 return -EOPNOTSUPP; 536 537 if (speed != SPEED_UNKNOWN) { 538 cmd->base.speed = speed; 539 cmd->base.duplex = DUPLEX_FULL; 540 } 541 542 return 0; 543 } 544 545 static int 546 nfp_net_set_link_ksettings(struct net_device *netdev, 547 const struct ethtool_link_ksettings *cmd) 548 { 549 bool req_aneg = (cmd->base.autoneg == AUTONEG_ENABLE); 550 struct nfp_eth_table_port *eth_port; 551 struct nfp_port *port; 552 struct nfp_nsp *nsp; 553 int err; 554 555 port = nfp_port_from_netdev(netdev); 556 eth_port = __nfp_port_get_eth_port(port); 557 if (!eth_port) 558 return -EOPNOTSUPP; 559 560 if (netif_running(netdev)) { 561 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until driver reload.\n"); 562 return -EBUSY; 563 } 564 565 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index); 566 if (IS_ERR(nsp)) 567 return PTR_ERR(nsp); 568 569 if (req_aneg && !eth_port->supp_aneg) { 570 netdev_warn(netdev, "Autoneg is not supported.\n"); 571 err = -EOPNOTSUPP; 572 goto err_bad_set; 573 } 574 575 err = __nfp_eth_set_aneg(nsp, req_aneg ? NFP_ANEG_AUTO : NFP_ANEG_DISABLED); 576 if (err) 577 goto err_bad_set; 578 579 if (cmd->base.speed != SPEED_UNKNOWN) { 580 u32 speed = cmd->base.speed / eth_port->lanes; 581 bool is_supported = false; 582 583 for (u32 i = 0; i < NFP_SUP_SPEED_NUMBER; i++) { 584 if (cmd->base.speed == nfp_eth_speed_map[i] && 585 test_bit(i, port->speed_bitmap)) { 586 is_supported = true; 587 break; 588 } 589 } 590 591 if (!is_supported) { 592 netdev_err(netdev, "Speed %u is not supported.\n", 593 cmd->base.speed); 594 err = -EINVAL; 595 goto err_bad_set; 596 } 597 598 if (req_aneg) { 599 netdev_err(netdev, "Speed changing is not allowed when working on autoneg mode.\n"); 600 err = -EINVAL; 601 goto err_bad_set; 602 } 603 604 err = __nfp_eth_set_speed(nsp, speed); 605 if (err) 606 goto err_bad_set; 607 } 608 609 err = nfp_eth_config_commit_end(nsp); 610 if (err > 0) 611 return 0; /* no change */ 612 613 nfp_net_refresh_port_table(port); 614 615 return err; 616 617 err_bad_set: 618 nfp_eth_config_cleanup_end(nsp); 619 return err; 620 } 621 622 static void nfp_net_get_ringparam(struct net_device *netdev, 623 struct ethtool_ringparam *ring, 624 struct kernel_ethtool_ringparam *kernel_ring, 625 struct netlink_ext_ack *extack) 626 { 627 struct nfp_net *nn = netdev_priv(netdev); 628 u32 qc_max = nn->dev_info->max_qc_size; 629 630 ring->rx_max_pending = qc_max; 631 ring->tx_max_pending = qc_max / nn->dp.ops->tx_min_desc_per_pkt; 632 ring->rx_pending = nn->dp.rxd_cnt; 633 ring->tx_pending = nn->dp.txd_cnt; 634 } 635 636 static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt) 637 { 638 struct nfp_net_dp *dp; 639 640 dp = nfp_net_clone_dp(nn); 641 if (!dp) 642 return -ENOMEM; 643 644 dp->rxd_cnt = rxd_cnt; 645 dp->txd_cnt = txd_cnt; 646 647 return nfp_net_ring_reconfig(nn, dp, NULL); 648 } 649 650 static int nfp_net_set_ringparam(struct net_device *netdev, 651 struct ethtool_ringparam *ring, 652 struct kernel_ethtool_ringparam *kernel_ring, 653 struct netlink_ext_ack *extack) 654 { 655 u32 tx_dpp, qc_min, qc_max, rxd_cnt, txd_cnt; 656 struct nfp_net *nn = netdev_priv(netdev); 657 658 /* We don't have separate queues/rings for small/large frames. */ 659 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 660 return -EINVAL; 661 662 qc_min = nn->dev_info->min_qc_size; 663 qc_max = nn->dev_info->max_qc_size; 664 tx_dpp = nn->dp.ops->tx_min_desc_per_pkt; 665 /* Round up to supported values */ 666 rxd_cnt = roundup_pow_of_two(ring->rx_pending); 667 txd_cnt = roundup_pow_of_two(ring->tx_pending); 668 669 if (rxd_cnt < qc_min || rxd_cnt > qc_max || 670 txd_cnt < qc_min / tx_dpp || txd_cnt > qc_max / tx_dpp) 671 return -EINVAL; 672 673 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt) 674 return 0; 675 676 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n", 677 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt); 678 679 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt); 680 } 681 682 static int nfp_test_link(struct net_device *netdev) 683 { 684 if (!netif_carrier_ok(netdev) || !(netdev->flags & IFF_UP)) 685 return 1; 686 687 return 0; 688 } 689 690 static int nfp_test_nsp(struct net_device *netdev) 691 { 692 struct nfp_app *app = nfp_app_from_netdev(netdev); 693 struct nfp_nsp_identify *nspi; 694 struct nfp_nsp *nsp; 695 int err; 696 697 nsp = nfp_nsp_open(app->cpp); 698 if (IS_ERR(nsp)) { 699 err = PTR_ERR(nsp); 700 netdev_info(netdev, "NSP Test: failed to access the NSP: %d\n", err); 701 goto exit; 702 } 703 704 if (nfp_nsp_get_abi_ver_minor(nsp) < 15) { 705 err = -EOPNOTSUPP; 706 goto exit_close_nsp; 707 } 708 709 nspi = kzalloc(sizeof(*nspi), GFP_KERNEL); 710 if (!nspi) { 711 err = -ENOMEM; 712 goto exit_close_nsp; 713 } 714 715 err = nfp_nsp_read_identify(nsp, nspi, sizeof(*nspi)); 716 if (err < 0) 717 netdev_info(netdev, "NSP Test: reading bsp version failed %d\n", err); 718 719 kfree(nspi); 720 exit_close_nsp: 721 nfp_nsp_close(nsp); 722 exit: 723 return err; 724 } 725 726 static int nfp_test_fw(struct net_device *netdev) 727 { 728 struct nfp_net *nn = netdev_priv(netdev); 729 int err; 730 731 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_GEN); 732 if (err) 733 netdev_info(netdev, "FW Test: update failed %d\n", err); 734 735 return err; 736 } 737 738 static int nfp_test_reg(struct net_device *netdev) 739 { 740 struct nfp_app *app = nfp_app_from_netdev(netdev); 741 struct nfp_cpp *cpp = app->cpp; 742 u32 model = nfp_cpp_model(cpp); 743 u32 value; 744 int err; 745 746 err = nfp_cpp_model_autodetect(cpp, &value); 747 if (err < 0) { 748 netdev_info(netdev, "REG Test: NFP model detection failed %d\n", err); 749 return err; 750 } 751 752 return (value == model) ? 0 : 1; 753 } 754 755 static bool link_test_supported(struct net_device *netdev) 756 { 757 return true; 758 } 759 760 static bool nsp_test_supported(struct net_device *netdev) 761 { 762 if (nfp_app_from_netdev(netdev)) 763 return true; 764 765 return false; 766 } 767 768 static bool fw_test_supported(struct net_device *netdev) 769 { 770 if (nfp_netdev_is_nfp_net(netdev)) 771 return true; 772 773 return false; 774 } 775 776 static bool reg_test_supported(struct net_device *netdev) 777 { 778 if (nfp_app_from_netdev(netdev)) 779 return true; 780 781 return false; 782 } 783 784 static struct nfp_self_test_item { 785 char name[ETH_GSTRING_LEN]; 786 bool (*is_supported)(struct net_device *dev); 787 int (*func)(struct net_device *dev); 788 } nfp_self_test[] = { 789 {"Link Test", link_test_supported, nfp_test_link}, 790 {"NSP Test", nsp_test_supported, nfp_test_nsp}, 791 {"Firmware Test", fw_test_supported, nfp_test_fw}, 792 {"Register Test", reg_test_supported, nfp_test_reg} 793 }; 794 795 #define NFP_TEST_TOTAL_NUM ARRAY_SIZE(nfp_self_test) 796 797 static void nfp_get_self_test_strings(struct net_device *netdev, u8 *data) 798 { 799 int i; 800 801 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) 802 if (nfp_self_test[i].is_supported(netdev)) 803 ethtool_sprintf(&data, nfp_self_test[i].name); 804 } 805 806 static int nfp_get_self_test_count(struct net_device *netdev) 807 { 808 int i, count = 0; 809 810 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) 811 if (nfp_self_test[i].is_supported(netdev)) 812 count++; 813 814 return count; 815 } 816 817 static void nfp_net_self_test(struct net_device *netdev, struct ethtool_test *eth_test, 818 u64 *data) 819 { 820 int i, ret, count = 0; 821 822 netdev_info(netdev, "Start self test\n"); 823 824 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) { 825 if (nfp_self_test[i].is_supported(netdev)) { 826 ret = nfp_self_test[i].func(netdev); 827 if (ret) 828 eth_test->flags |= ETH_TEST_FL_FAILED; 829 data[count++] = ret; 830 } 831 } 832 833 netdev_info(netdev, "Test end\n"); 834 } 835 836 static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev) 837 { 838 struct nfp_net *nn = netdev_priv(netdev); 839 840 return NN_RVEC_GATHER_STATS + nn->max_r_vecs * NN_RVEC_PER_Q_STATS + 841 NN_CTRL_PATH_STATS; 842 } 843 844 static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data) 845 { 846 struct nfp_net *nn = netdev_priv(netdev); 847 int i; 848 849 for (i = 0; i < nn->max_r_vecs; i++) { 850 ethtool_sprintf(&data, "rvec_%u_rx_pkts", i); 851 ethtool_sprintf(&data, "rvec_%u_tx_pkts", i); 852 ethtool_sprintf(&data, "rvec_%u_tx_busy", i); 853 } 854 855 ethtool_sprintf(&data, "hw_rx_csum_ok"); 856 ethtool_sprintf(&data, "hw_rx_csum_inner_ok"); 857 ethtool_sprintf(&data, "hw_rx_csum_complete"); 858 ethtool_sprintf(&data, "hw_rx_csum_err"); 859 ethtool_sprintf(&data, "rx_replace_buf_alloc_fail"); 860 ethtool_sprintf(&data, "rx_tls_decrypted_packets"); 861 ethtool_sprintf(&data, "hw_tx_csum"); 862 ethtool_sprintf(&data, "hw_tx_inner_csum"); 863 ethtool_sprintf(&data, "tx_gather"); 864 ethtool_sprintf(&data, "tx_lso"); 865 ethtool_sprintf(&data, "tx_tls_encrypted_packets"); 866 ethtool_sprintf(&data, "tx_tls_ooo"); 867 ethtool_sprintf(&data, "tx_tls_drop_no_sync_data"); 868 869 ethtool_sprintf(&data, "hw_tls_no_space"); 870 ethtool_sprintf(&data, "rx_tls_resync_req_ok"); 871 ethtool_sprintf(&data, "rx_tls_resync_req_ign"); 872 ethtool_sprintf(&data, "rx_tls_resync_sent"); 873 874 return data; 875 } 876 877 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data) 878 { 879 u64 gathered_stats[NN_RVEC_GATHER_STATS] = {}; 880 struct nfp_net *nn = netdev_priv(netdev); 881 u64 tmp[NN_RVEC_GATHER_STATS]; 882 unsigned int i, j; 883 884 for (i = 0; i < nn->max_r_vecs; i++) { 885 unsigned int start; 886 887 do { 888 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync); 889 data[0] = nn->r_vecs[i].rx_pkts; 890 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok; 891 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok; 892 tmp[2] = nn->r_vecs[i].hw_csum_rx_complete; 893 tmp[3] = nn->r_vecs[i].hw_csum_rx_error; 894 tmp[4] = nn->r_vecs[i].rx_replace_buf_alloc_fail; 895 tmp[5] = nn->r_vecs[i].hw_tls_rx; 896 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start)); 897 898 do { 899 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync); 900 data[1] = nn->r_vecs[i].tx_pkts; 901 data[2] = nn->r_vecs[i].tx_busy; 902 tmp[6] = nn->r_vecs[i].hw_csum_tx; 903 tmp[7] = nn->r_vecs[i].hw_csum_tx_inner; 904 tmp[8] = nn->r_vecs[i].tx_gather; 905 tmp[9] = nn->r_vecs[i].tx_lso; 906 tmp[10] = nn->r_vecs[i].hw_tls_tx; 907 tmp[11] = nn->r_vecs[i].tls_tx_fallback; 908 tmp[12] = nn->r_vecs[i].tls_tx_no_fallback; 909 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start)); 910 911 data += NN_RVEC_PER_Q_STATS; 912 913 for (j = 0; j < NN_RVEC_GATHER_STATS; j++) 914 gathered_stats[j] += tmp[j]; 915 } 916 917 for (j = 0; j < NN_RVEC_GATHER_STATS; j++) 918 *data++ = gathered_stats[j]; 919 920 *data++ = atomic_read(&nn->ktls_no_space); 921 *data++ = atomic_read(&nn->ktls_rx_resync_req); 922 *data++ = atomic_read(&nn->ktls_rx_resync_ign); 923 *data++ = atomic_read(&nn->ktls_rx_resync_sent); 924 925 return data; 926 } 927 928 static unsigned int nfp_vnic_get_hw_stats_count(unsigned int num_vecs) 929 { 930 return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4; 931 } 932 933 static u8 * 934 nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr) 935 { 936 int swap_off, i; 937 938 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2); 939 /* If repr is true first add SWITCH_STATS_LEN and then subtract it 940 * effectively swapping the RX and TX statistics (giving us the RX 941 * and TX from perspective of the switch). 942 */ 943 swap_off = repr * NN_ET_SWITCH_STATS_LEN; 944 945 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++) 946 ethtool_sprintf(&data, nfp_net_et_stats[i + swap_off].name); 947 948 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++) 949 ethtool_sprintf(&data, nfp_net_et_stats[i - swap_off].name); 950 951 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++) 952 ethtool_sprintf(&data, nfp_net_et_stats[i].name); 953 954 for (i = 0; i < num_vecs; i++) { 955 ethtool_sprintf(&data, "rxq_%u_pkts", i); 956 ethtool_sprintf(&data, "rxq_%u_bytes", i); 957 ethtool_sprintf(&data, "txq_%u_pkts", i); 958 ethtool_sprintf(&data, "txq_%u_bytes", i); 959 } 960 961 return data; 962 } 963 964 static u64 * 965 nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, unsigned int num_vecs) 966 { 967 unsigned int i; 968 969 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++) 970 *data++ = readq(mem + nfp_net_et_stats[i].off); 971 972 for (i = 0; i < num_vecs; i++) { 973 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 974 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 975 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 976 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 977 } 978 979 return data; 980 } 981 982 static unsigned int nfp_vnic_get_tlv_stats_count(struct nfp_net *nn) 983 { 984 return nn->tlv_caps.vnic_stats_cnt + nn->max_r_vecs * 4; 985 } 986 987 static u8 *nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 *data) 988 { 989 unsigned int i, id; 990 u8 __iomem *mem; 991 u64 id_word = 0; 992 993 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off; 994 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) { 995 if (!(i % 4)) 996 id_word = readq(mem + i * 2); 997 998 id = (u16)id_word; 999 id_word >>= 16; 1000 1001 if (id < ARRAY_SIZE(nfp_tlv_stat_names) && 1002 nfp_tlv_stat_names[id][0]) { 1003 memcpy(data, nfp_tlv_stat_names[id], ETH_GSTRING_LEN); 1004 data += ETH_GSTRING_LEN; 1005 } else { 1006 ethtool_sprintf(&data, "dev_unknown_stat%u", id); 1007 } 1008 } 1009 1010 for (i = 0; i < nn->max_r_vecs; i++) { 1011 ethtool_sprintf(&data, "rxq_%u_pkts", i); 1012 ethtool_sprintf(&data, "rxq_%u_bytes", i); 1013 ethtool_sprintf(&data, "txq_%u_pkts", i); 1014 ethtool_sprintf(&data, "txq_%u_bytes", i); 1015 } 1016 1017 return data; 1018 } 1019 1020 static u64 *nfp_vnic_get_tlv_stats(struct nfp_net *nn, u64 *data) 1021 { 1022 u8 __iomem *mem; 1023 unsigned int i; 1024 1025 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off; 1026 mem += roundup(2 * nn->tlv_caps.vnic_stats_cnt, 8); 1027 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) 1028 *data++ = readq(mem + i * 8); 1029 1030 mem = nn->dp.ctrl_bar; 1031 for (i = 0; i < nn->max_r_vecs; i++) { 1032 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 1033 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 1034 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 1035 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 1036 } 1037 1038 return data; 1039 } 1040 1041 static unsigned int nfp_mac_get_stats_count(struct net_device *netdev) 1042 { 1043 struct nfp_port *port; 1044 1045 port = nfp_port_from_netdev(netdev); 1046 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 1047 return 0; 1048 1049 return ARRAY_SIZE(nfp_mac_et_stats); 1050 } 1051 1052 static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data) 1053 { 1054 struct nfp_port *port; 1055 unsigned int i; 1056 1057 port = nfp_port_from_netdev(netdev); 1058 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 1059 return data; 1060 1061 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 1062 ethtool_sprintf(&data, "mac.%s", nfp_mac_et_stats[i].name); 1063 1064 return data; 1065 } 1066 1067 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data) 1068 { 1069 struct nfp_port *port; 1070 unsigned int i; 1071 1072 port = nfp_port_from_netdev(netdev); 1073 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 1074 return data; 1075 1076 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 1077 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off); 1078 1079 return data; 1080 } 1081 1082 static void nfp_net_get_strings(struct net_device *netdev, 1083 u32 stringset, u8 *data) 1084 { 1085 struct nfp_net *nn = netdev_priv(netdev); 1086 1087 switch (stringset) { 1088 case ETH_SS_STATS: 1089 data = nfp_vnic_get_sw_stats_strings(netdev, data); 1090 if (!nn->tlv_caps.vnic_stats_off) 1091 data = nfp_vnic_get_hw_stats_strings(data, 1092 nn->max_r_vecs, 1093 false); 1094 else 1095 data = nfp_vnic_get_tlv_stats_strings(nn, data); 1096 data = nfp_mac_get_stats_strings(netdev, data); 1097 data = nfp_app_port_get_stats_strings(nn->port, data); 1098 break; 1099 case ETH_SS_TEST: 1100 nfp_get_self_test_strings(netdev, data); 1101 break; 1102 } 1103 } 1104 1105 static void 1106 nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 1107 u64 *data) 1108 { 1109 struct nfp_net *nn = netdev_priv(netdev); 1110 1111 data = nfp_vnic_get_sw_stats(netdev, data); 1112 if (!nn->tlv_caps.vnic_stats_off) 1113 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar, 1114 nn->max_r_vecs); 1115 else 1116 data = nfp_vnic_get_tlv_stats(nn, data); 1117 data = nfp_mac_get_stats(netdev, data); 1118 data = nfp_app_port_get_stats(nn->port, data); 1119 } 1120 1121 static int nfp_net_get_sset_count(struct net_device *netdev, int sset) 1122 { 1123 struct nfp_net *nn = netdev_priv(netdev); 1124 unsigned int cnt; 1125 1126 switch (sset) { 1127 case ETH_SS_STATS: 1128 cnt = nfp_vnic_get_sw_stats_count(netdev); 1129 if (!nn->tlv_caps.vnic_stats_off) 1130 cnt += nfp_vnic_get_hw_stats_count(nn->max_r_vecs); 1131 else 1132 cnt += nfp_vnic_get_tlv_stats_count(nn); 1133 cnt += nfp_mac_get_stats_count(netdev); 1134 cnt += nfp_app_port_get_stats_count(nn->port); 1135 return cnt; 1136 case ETH_SS_TEST: 1137 return nfp_get_self_test_count(netdev); 1138 default: 1139 return -EOPNOTSUPP; 1140 } 1141 } 1142 1143 static void nfp_port_get_strings(struct net_device *netdev, 1144 u32 stringset, u8 *data) 1145 { 1146 struct nfp_port *port = nfp_port_from_netdev(netdev); 1147 1148 switch (stringset) { 1149 case ETH_SS_STATS: 1150 if (nfp_port_is_vnic(port)) 1151 data = nfp_vnic_get_hw_stats_strings(data, 0, true); 1152 else 1153 data = nfp_mac_get_stats_strings(netdev, data); 1154 data = nfp_app_port_get_stats_strings(port, data); 1155 break; 1156 case ETH_SS_TEST: 1157 nfp_get_self_test_strings(netdev, data); 1158 break; 1159 } 1160 } 1161 1162 static void 1163 nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 1164 u64 *data) 1165 { 1166 struct nfp_port *port = nfp_port_from_netdev(netdev); 1167 1168 if (nfp_port_is_vnic(port)) 1169 data = nfp_vnic_get_hw_stats(data, port->vnic, 0); 1170 else 1171 data = nfp_mac_get_stats(netdev, data); 1172 data = nfp_app_port_get_stats(port, data); 1173 } 1174 1175 static int nfp_port_get_sset_count(struct net_device *netdev, int sset) 1176 { 1177 struct nfp_port *port = nfp_port_from_netdev(netdev); 1178 unsigned int count; 1179 1180 switch (sset) { 1181 case ETH_SS_STATS: 1182 if (nfp_port_is_vnic(port)) 1183 count = nfp_vnic_get_hw_stats_count(0); 1184 else 1185 count = nfp_mac_get_stats_count(netdev); 1186 count += nfp_app_port_get_stats_count(port); 1187 return count; 1188 case ETH_SS_TEST: 1189 return nfp_get_self_test_count(netdev); 1190 default: 1191 return -EOPNOTSUPP; 1192 } 1193 } 1194 1195 static int nfp_port_fec_ethtool_to_nsp(u32 fec) 1196 { 1197 switch (fec) { 1198 case ETHTOOL_FEC_AUTO: 1199 return NFP_FEC_AUTO_BIT; 1200 case ETHTOOL_FEC_OFF: 1201 return NFP_FEC_DISABLED_BIT; 1202 case ETHTOOL_FEC_RS: 1203 return NFP_FEC_REED_SOLOMON_BIT; 1204 case ETHTOOL_FEC_BASER: 1205 return NFP_FEC_BASER_BIT; 1206 default: 1207 /* NSP only supports a single mode at a time */ 1208 return -EOPNOTSUPP; 1209 } 1210 } 1211 1212 static u32 nfp_port_fec_nsp_to_ethtool(u32 fec) 1213 { 1214 u32 result = 0; 1215 1216 if (fec & NFP_FEC_AUTO) 1217 result |= ETHTOOL_FEC_AUTO; 1218 if (fec & NFP_FEC_BASER) 1219 result |= ETHTOOL_FEC_BASER; 1220 if (fec & NFP_FEC_REED_SOLOMON) 1221 result |= ETHTOOL_FEC_RS; 1222 if (fec & NFP_FEC_DISABLED) 1223 result |= ETHTOOL_FEC_OFF; 1224 1225 return result ?: ETHTOOL_FEC_NONE; 1226 } 1227 1228 static int 1229 nfp_port_get_fecparam(struct net_device *netdev, 1230 struct ethtool_fecparam *param) 1231 { 1232 struct nfp_eth_table_port *eth_port; 1233 struct nfp_port *port; 1234 1235 param->active_fec = ETHTOOL_FEC_NONE; 1236 param->fec = ETHTOOL_FEC_NONE; 1237 1238 port = nfp_port_from_netdev(netdev); 1239 eth_port = nfp_port_get_eth_port(port); 1240 if (!eth_port) 1241 return -EOPNOTSUPP; 1242 1243 if (!nfp_eth_can_support_fec(eth_port)) 1244 return 0; 1245 1246 param->fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec_modes_supported); 1247 param->active_fec = nfp_port_fec_nsp_to_ethtool(BIT(eth_port->act_fec)); 1248 1249 return 0; 1250 } 1251 1252 static int 1253 nfp_port_set_fecparam(struct net_device *netdev, 1254 struct ethtool_fecparam *param) 1255 { 1256 struct nfp_eth_table_port *eth_port; 1257 struct nfp_port *port; 1258 int err, fec; 1259 1260 port = nfp_port_from_netdev(netdev); 1261 eth_port = nfp_port_get_eth_port(port); 1262 if (!eth_port) 1263 return -EOPNOTSUPP; 1264 1265 if (!nfp_eth_can_support_fec(eth_port)) 1266 return -EOPNOTSUPP; 1267 1268 fec = nfp_port_fec_ethtool_to_nsp(param->fec); 1269 if (fec < 0) 1270 return fec; 1271 1272 err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec); 1273 if (!err) 1274 /* Only refresh if we did something */ 1275 nfp_net_refresh_port_table(port); 1276 1277 return err < 0 ? err : 0; 1278 } 1279 1280 /* RX network flow classification (RSS, filters, etc) 1281 */ 1282 static u32 ethtool_flow_to_nfp_flag(u32 flow_type) 1283 { 1284 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = { 1285 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP, 1286 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP, 1287 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP, 1288 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP, 1289 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4, 1290 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6, 1291 }; 1292 1293 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp)) 1294 return 0; 1295 1296 return xlate_ethtool_to_nfp[flow_type]; 1297 } 1298 1299 static int nfp_net_get_rss_hash_opts(struct nfp_net *nn, 1300 struct ethtool_rxnfc *cmd) 1301 { 1302 u32 nfp_rss_flag; 1303 1304 cmd->data = 0; 1305 1306 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1307 return -EOPNOTSUPP; 1308 1309 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type); 1310 if (!nfp_rss_flag) 1311 return -EINVAL; 1312 1313 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1314 if (nn->rss_cfg & nfp_rss_flag) 1315 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1316 1317 return 0; 1318 } 1319 1320 static int nfp_net_get_rxnfc(struct net_device *netdev, 1321 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1322 { 1323 struct nfp_net *nn = netdev_priv(netdev); 1324 1325 switch (cmd->cmd) { 1326 case ETHTOOL_GRXRINGS: 1327 cmd->data = nn->dp.num_rx_rings; 1328 return 0; 1329 case ETHTOOL_GRXFH: 1330 return nfp_net_get_rss_hash_opts(nn, cmd); 1331 default: 1332 return -EOPNOTSUPP; 1333 } 1334 } 1335 1336 static int nfp_net_set_rss_hash_opt(struct nfp_net *nn, 1337 struct ethtool_rxnfc *nfc) 1338 { 1339 u32 new_rss_cfg = nn->rss_cfg; 1340 u32 nfp_rss_flag; 1341 int err; 1342 1343 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1344 return -EOPNOTSUPP; 1345 1346 /* RSS only supports IP SA/DA and L4 src/dst ports */ 1347 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1348 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1349 return -EINVAL; 1350 1351 /* We need at least the IP SA/DA fields for hashing */ 1352 if (!(nfc->data & RXH_IP_SRC) || 1353 !(nfc->data & RXH_IP_DST)) 1354 return -EINVAL; 1355 1356 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type); 1357 if (!nfp_rss_flag) 1358 return -EINVAL; 1359 1360 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1361 case 0: 1362 new_rss_cfg &= ~nfp_rss_flag; 1363 break; 1364 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1365 new_rss_cfg |= nfp_rss_flag; 1366 break; 1367 default: 1368 return -EINVAL; 1369 } 1370 1371 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc); 1372 new_rss_cfg |= NFP_NET_CFG_RSS_MASK; 1373 1374 if (new_rss_cfg == nn->rss_cfg) 1375 return 0; 1376 1377 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL); 1378 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1379 if (err) 1380 return err; 1381 1382 nn->rss_cfg = new_rss_cfg; 1383 1384 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg); 1385 return 0; 1386 } 1387 1388 static int nfp_net_set_rxnfc(struct net_device *netdev, 1389 struct ethtool_rxnfc *cmd) 1390 { 1391 struct nfp_net *nn = netdev_priv(netdev); 1392 1393 switch (cmd->cmd) { 1394 case ETHTOOL_SRXFH: 1395 return nfp_net_set_rss_hash_opt(nn, cmd); 1396 default: 1397 return -EOPNOTSUPP; 1398 } 1399 } 1400 1401 static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev) 1402 { 1403 struct nfp_net *nn = netdev_priv(netdev); 1404 1405 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1406 return 0; 1407 1408 return ARRAY_SIZE(nn->rss_itbl); 1409 } 1410 1411 static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev) 1412 { 1413 struct nfp_net *nn = netdev_priv(netdev); 1414 1415 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1416 return -EOPNOTSUPP; 1417 1418 return nfp_net_rss_key_sz(nn); 1419 } 1420 1421 static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1422 u8 *hfunc) 1423 { 1424 struct nfp_net *nn = netdev_priv(netdev); 1425 int i; 1426 1427 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1428 return -EOPNOTSUPP; 1429 1430 if (indir) 1431 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1432 indir[i] = nn->rss_itbl[i]; 1433 if (key) 1434 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn)); 1435 if (hfunc) { 1436 *hfunc = nn->rss_hfunc; 1437 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT) 1438 *hfunc = ETH_RSS_HASH_UNKNOWN; 1439 } 1440 1441 return 0; 1442 } 1443 1444 static int nfp_net_set_rxfh(struct net_device *netdev, 1445 const u32 *indir, const u8 *key, 1446 const u8 hfunc) 1447 { 1448 struct nfp_net *nn = netdev_priv(netdev); 1449 int i; 1450 1451 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) || 1452 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc)) 1453 return -EOPNOTSUPP; 1454 1455 if (!key && !indir) 1456 return 0; 1457 1458 if (key) { 1459 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn)); 1460 nfp_net_rss_write_key(nn); 1461 } 1462 if (indir) { 1463 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1464 nn->rss_itbl[i] = indir[i]; 1465 1466 nfp_net_rss_write_itbl(nn); 1467 } 1468 1469 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1470 } 1471 1472 /* Dump BAR registers 1473 */ 1474 static int nfp_net_get_regs_len(struct net_device *netdev) 1475 { 1476 return NFP_NET_CFG_BAR_SZ; 1477 } 1478 1479 static void nfp_net_get_regs(struct net_device *netdev, 1480 struct ethtool_regs *regs, void *p) 1481 { 1482 struct nfp_net *nn = netdev_priv(netdev); 1483 u32 *regs_buf = p; 1484 int i; 1485 1486 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION); 1487 1488 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++) 1489 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32))); 1490 } 1491 1492 static int nfp_net_get_coalesce(struct net_device *netdev, 1493 struct ethtool_coalesce *ec, 1494 struct kernel_ethtool_coalesce *kernel_coal, 1495 struct netlink_ext_ack *extack) 1496 { 1497 struct nfp_net *nn = netdev_priv(netdev); 1498 1499 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1500 return -EINVAL; 1501 1502 ec->use_adaptive_rx_coalesce = nn->rx_coalesce_adapt_on; 1503 ec->use_adaptive_tx_coalesce = nn->tx_coalesce_adapt_on; 1504 1505 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs; 1506 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames; 1507 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs; 1508 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames; 1509 1510 return 0; 1511 } 1512 1513 /* Other debug dumps 1514 */ 1515 static int 1516 nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer) 1517 { 1518 struct nfp_resource *res; 1519 int ret; 1520 1521 if (!app) 1522 return -EOPNOTSUPP; 1523 1524 dump->version = 1; 1525 dump->flag = NFP_DUMP_NSP_DIAG; 1526 1527 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG); 1528 if (IS_ERR(res)) 1529 return PTR_ERR(res); 1530 1531 if (buffer) { 1532 if (dump->len != nfp_resource_size(res)) { 1533 ret = -EINVAL; 1534 goto exit_release; 1535 } 1536 1537 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res), 1538 nfp_resource_address(res), 1539 buffer, dump->len); 1540 if (ret != dump->len) 1541 ret = ret < 0 ? ret : -EIO; 1542 else 1543 ret = 0; 1544 } else { 1545 dump->len = nfp_resource_size(res); 1546 ret = 0; 1547 } 1548 exit_release: 1549 nfp_resource_release(res); 1550 1551 return ret; 1552 } 1553 1554 /* Set the dump flag/level. Calculate the dump length for flag > 0 only (new TLV 1555 * based dumps), since flag 0 (default) calculates the length in 1556 * nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump 1557 * without setting the flag first, for backward compatibility. 1558 */ 1559 static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val) 1560 { 1561 struct nfp_app *app = nfp_app_from_netdev(netdev); 1562 s64 len; 1563 1564 if (!app) 1565 return -EOPNOTSUPP; 1566 1567 if (val->flag == NFP_DUMP_NSP_DIAG) { 1568 app->pf->dump_flag = val->flag; 1569 return 0; 1570 } 1571 1572 if (!app->pf->dumpspec) 1573 return -EOPNOTSUPP; 1574 1575 len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec, 1576 val->flag); 1577 if (len < 0) 1578 return len; 1579 1580 app->pf->dump_flag = val->flag; 1581 app->pf->dump_len = len; 1582 1583 return 0; 1584 } 1585 1586 static int 1587 nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump) 1588 { 1589 struct nfp_app *app = nfp_app_from_netdev(netdev); 1590 1591 if (!app) 1592 return -EOPNOTSUPP; 1593 1594 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1595 return nfp_dump_nsp_diag(app, dump, NULL); 1596 1597 dump->flag = app->pf->dump_flag; 1598 dump->len = app->pf->dump_len; 1599 1600 return 0; 1601 } 1602 1603 static int 1604 nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump, 1605 void *buffer) 1606 { 1607 struct nfp_app *app = nfp_app_from_netdev(netdev); 1608 1609 if (!app) 1610 return -EOPNOTSUPP; 1611 1612 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1613 return nfp_dump_nsp_diag(app, dump, buffer); 1614 1615 dump->flag = app->pf->dump_flag; 1616 dump->len = app->pf->dump_len; 1617 1618 return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump, 1619 buffer); 1620 } 1621 1622 static int 1623 nfp_port_get_module_info(struct net_device *netdev, 1624 struct ethtool_modinfo *modinfo) 1625 { 1626 struct nfp_eth_table_port *eth_port; 1627 struct nfp_port *port; 1628 unsigned int read_len; 1629 struct nfp_nsp *nsp; 1630 int err = 0; 1631 u8 data; 1632 1633 port = nfp_port_from_netdev(netdev); 1634 if (!port) 1635 return -EOPNOTSUPP; 1636 1637 /* update port state to get latest interface */ 1638 set_bit(NFP_PORT_CHANGED, &port->flags); 1639 eth_port = nfp_port_get_eth_port(port); 1640 if (!eth_port) 1641 return -EOPNOTSUPP; 1642 1643 nsp = nfp_nsp_open(port->app->cpp); 1644 if (IS_ERR(nsp)) { 1645 err = PTR_ERR(nsp); 1646 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1647 return err; 1648 } 1649 1650 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 1651 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 1652 err = -EOPNOTSUPP; 1653 goto exit_close_nsp; 1654 } 1655 1656 switch (eth_port->interface) { 1657 case NFP_INTERFACE_SFP: 1658 case NFP_INTERFACE_SFP28: 1659 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1660 SFP_SFF8472_COMPLIANCE, &data, 1661 1, &read_len); 1662 if (err < 0) 1663 goto exit_close_nsp; 1664 1665 if (!data) { 1666 modinfo->type = ETH_MODULE_SFF_8079; 1667 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 1668 } else { 1669 modinfo->type = ETH_MODULE_SFF_8472; 1670 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 1671 } 1672 break; 1673 case NFP_INTERFACE_QSFP: 1674 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1675 SFP_SFF_REV_COMPLIANCE, &data, 1676 1, &read_len); 1677 if (err < 0) 1678 goto exit_close_nsp; 1679 1680 if (data < 0x3) { 1681 modinfo->type = ETH_MODULE_SFF_8436; 1682 modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN; 1683 } else { 1684 modinfo->type = ETH_MODULE_SFF_8636; 1685 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 1686 } 1687 break; 1688 case NFP_INTERFACE_QSFP28: 1689 modinfo->type = ETH_MODULE_SFF_8636; 1690 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 1691 break; 1692 default: 1693 netdev_err(netdev, "Unsupported module 0x%x detected\n", 1694 eth_port->interface); 1695 err = -EINVAL; 1696 } 1697 1698 exit_close_nsp: 1699 nfp_nsp_close(nsp); 1700 return err; 1701 } 1702 1703 static int 1704 nfp_port_get_module_eeprom(struct net_device *netdev, 1705 struct ethtool_eeprom *eeprom, u8 *data) 1706 { 1707 struct nfp_eth_table_port *eth_port; 1708 struct nfp_port *port; 1709 struct nfp_nsp *nsp; 1710 int err; 1711 1712 port = nfp_port_from_netdev(netdev); 1713 eth_port = __nfp_port_get_eth_port(port); 1714 if (!eth_port) 1715 return -EOPNOTSUPP; 1716 1717 nsp = nfp_nsp_open(port->app->cpp); 1718 if (IS_ERR(nsp)) { 1719 err = PTR_ERR(nsp); 1720 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1721 return err; 1722 } 1723 1724 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 1725 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 1726 err = -EOPNOTSUPP; 1727 goto exit_close_nsp; 1728 } 1729 1730 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1731 eeprom->offset, data, eeprom->len, 1732 &eeprom->len); 1733 if (err < 0) { 1734 if (eeprom->len) { 1735 netdev_warn(netdev, 1736 "Incomplete read from module EEPROM: %d\n", 1737 err); 1738 err = 0; 1739 } else { 1740 netdev_err(netdev, 1741 "Reading from module EEPROM failed: %d\n", 1742 err); 1743 } 1744 } 1745 1746 exit_close_nsp: 1747 nfp_nsp_close(nsp); 1748 return err; 1749 } 1750 1751 static int nfp_net_set_coalesce(struct net_device *netdev, 1752 struct ethtool_coalesce *ec, 1753 struct kernel_ethtool_coalesce *kernel_coal, 1754 struct netlink_ext_ack *extack) 1755 { 1756 struct nfp_net *nn = netdev_priv(netdev); 1757 unsigned int factor; 1758 1759 /* Compute factor used to convert coalesce '_usecs' parameters to 1760 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp 1761 * count. 1762 */ 1763 factor = nn->tlv_caps.me_freq_mhz / 16; 1764 1765 /* Each pair of (usecs, max_frames) fields specifies that interrupts 1766 * should be coalesced until 1767 * (usecs > 0 && time_since_first_completion >= usecs) || 1768 * (max_frames > 0 && completed_frames >= max_frames) 1769 * 1770 * It is illegal to set both usecs and max_frames to zero as this would 1771 * cause interrupts to never be generated. To disable coalescing, set 1772 * usecs = 0 and max_frames = 1. 1773 * 1774 * Some implementations ignore the value of max_frames and use the 1775 * condition time_since_first_completion >= usecs 1776 */ 1777 1778 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1779 return -EINVAL; 1780 1781 /* ensure valid configuration */ 1782 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames) 1783 return -EINVAL; 1784 1785 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames) 1786 return -EINVAL; 1787 1788 if (nfp_net_coalesce_para_check(ec->rx_coalesce_usecs * factor, 1789 ec->rx_max_coalesced_frames)) 1790 return -EINVAL; 1791 1792 if (nfp_net_coalesce_para_check(ec->tx_coalesce_usecs * factor, 1793 ec->tx_max_coalesced_frames)) 1794 return -EINVAL; 1795 1796 /* configuration is valid */ 1797 nn->rx_coalesce_adapt_on = !!ec->use_adaptive_rx_coalesce; 1798 nn->tx_coalesce_adapt_on = !!ec->use_adaptive_tx_coalesce; 1799 1800 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs; 1801 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames; 1802 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs; 1803 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames; 1804 1805 /* write configuration to device */ 1806 nfp_net_coalesce_write_cfg(nn); 1807 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD); 1808 } 1809 1810 static void nfp_net_get_channels(struct net_device *netdev, 1811 struct ethtool_channels *channel) 1812 { 1813 struct nfp_net *nn = netdev_priv(netdev); 1814 unsigned int num_tx_rings; 1815 1816 num_tx_rings = nn->dp.num_tx_rings; 1817 if (nn->dp.xdp_prog) 1818 num_tx_rings -= nn->dp.num_rx_rings; 1819 1820 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs); 1821 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs); 1822 channel->max_combined = min(channel->max_rx, channel->max_tx); 1823 channel->max_other = NFP_NET_NON_Q_VECTORS; 1824 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings); 1825 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count; 1826 channel->tx_count = num_tx_rings - channel->combined_count; 1827 channel->other_count = NFP_NET_NON_Q_VECTORS; 1828 } 1829 1830 static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx, 1831 unsigned int total_tx) 1832 { 1833 struct nfp_net_dp *dp; 1834 1835 dp = nfp_net_clone_dp(nn); 1836 if (!dp) 1837 return -ENOMEM; 1838 1839 dp->num_rx_rings = total_rx; 1840 dp->num_tx_rings = total_tx; 1841 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */ 1842 if (dp->xdp_prog) 1843 dp->num_tx_rings += total_rx; 1844 1845 return nfp_net_ring_reconfig(nn, dp, NULL); 1846 } 1847 1848 static int nfp_net_set_channels(struct net_device *netdev, 1849 struct ethtool_channels *channel) 1850 { 1851 struct nfp_net *nn = netdev_priv(netdev); 1852 unsigned int total_rx, total_tx; 1853 1854 /* Reject unsupported */ 1855 if (channel->other_count != NFP_NET_NON_Q_VECTORS || 1856 (channel->rx_count && channel->tx_count)) 1857 return -EINVAL; 1858 1859 total_rx = channel->combined_count + channel->rx_count; 1860 total_tx = channel->combined_count + channel->tx_count; 1861 1862 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) || 1863 total_tx > min(nn->max_tx_rings, nn->max_r_vecs)) 1864 return -EINVAL; 1865 1866 return nfp_net_set_num_rings(nn, total_rx, total_tx); 1867 } 1868 1869 static void nfp_port_get_pauseparam(struct net_device *netdev, 1870 struct ethtool_pauseparam *pause) 1871 { 1872 struct nfp_eth_table_port *eth_port; 1873 struct nfp_port *port; 1874 1875 port = nfp_port_from_netdev(netdev); 1876 eth_port = nfp_port_get_eth_port(port); 1877 if (!eth_port) 1878 return; 1879 1880 /* Currently pause frame support is fixed */ 1881 pause->autoneg = AUTONEG_DISABLE; 1882 pause->rx_pause = 1; 1883 pause->tx_pause = 1; 1884 } 1885 1886 static int nfp_net_set_phys_id(struct net_device *netdev, 1887 enum ethtool_phys_id_state state) 1888 { 1889 struct nfp_eth_table_port *eth_port; 1890 struct nfp_port *port; 1891 int err; 1892 1893 port = nfp_port_from_netdev(netdev); 1894 eth_port = __nfp_port_get_eth_port(port); 1895 if (!eth_port) 1896 return -EOPNOTSUPP; 1897 1898 switch (state) { 1899 case ETHTOOL_ID_ACTIVE: 1900 /* Control LED to blink */ 1901 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 1); 1902 break; 1903 1904 case ETHTOOL_ID_INACTIVE: 1905 /* Control LED to normal mode */ 1906 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 0); 1907 break; 1908 1909 case ETHTOOL_ID_ON: 1910 case ETHTOOL_ID_OFF: 1911 default: 1912 return -EOPNOTSUPP; 1913 } 1914 1915 return err; 1916 } 1917 1918 #define NFP_EEPROM_LEN ETH_ALEN 1919 1920 static int 1921 nfp_net_get_eeprom_len(struct net_device *netdev) 1922 { 1923 struct nfp_eth_table_port *eth_port; 1924 struct nfp_port *port; 1925 1926 port = nfp_port_from_netdev(netdev); 1927 eth_port = __nfp_port_get_eth_port(port); 1928 if (!eth_port) 1929 return 0; 1930 1931 return NFP_EEPROM_LEN; 1932 } 1933 1934 static int 1935 nfp_net_get_nsp_hwindex(struct net_device *netdev, 1936 struct nfp_nsp **nspptr, 1937 u32 *index) 1938 { 1939 struct nfp_eth_table_port *eth_port; 1940 struct nfp_port *port; 1941 struct nfp_nsp *nsp; 1942 int err; 1943 1944 port = nfp_port_from_netdev(netdev); 1945 eth_port = __nfp_port_get_eth_port(port); 1946 if (!eth_port) 1947 return -EOPNOTSUPP; 1948 1949 nsp = nfp_nsp_open(port->app->cpp); 1950 if (IS_ERR(nsp)) { 1951 err = PTR_ERR(nsp); 1952 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1953 return err; 1954 } 1955 1956 if (!nfp_nsp_has_hwinfo_lookup(nsp)) { 1957 netdev_err(netdev, "NSP doesn't support PF MAC generation\n"); 1958 nfp_nsp_close(nsp); 1959 return -EOPNOTSUPP; 1960 } 1961 1962 *nspptr = nsp; 1963 *index = eth_port->eth_index; 1964 1965 return 0; 1966 } 1967 1968 static int 1969 nfp_net_get_port_mac_by_hwinfo(struct net_device *netdev, 1970 u8 *mac_addr) 1971 { 1972 char hwinfo[32] = {}; 1973 struct nfp_nsp *nsp; 1974 u32 index; 1975 int err; 1976 1977 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 1978 if (err) 1979 return err; 1980 1981 snprintf(hwinfo, sizeof(hwinfo), "eth%u.mac", index); 1982 err = nfp_nsp_hwinfo_lookup(nsp, hwinfo, sizeof(hwinfo)); 1983 nfp_nsp_close(nsp); 1984 if (err) { 1985 netdev_err(netdev, "Reading persistent MAC address failed: %d\n", 1986 err); 1987 return -EOPNOTSUPP; 1988 } 1989 1990 if (sscanf(hwinfo, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 1991 &mac_addr[0], &mac_addr[1], &mac_addr[2], 1992 &mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) { 1993 netdev_err(netdev, "Can't parse persistent MAC address (%s)\n", 1994 hwinfo); 1995 return -EOPNOTSUPP; 1996 } 1997 1998 return 0; 1999 } 2000 2001 static int 2002 nfp_net_set_port_mac_by_hwinfo(struct net_device *netdev, 2003 u8 *mac_addr) 2004 { 2005 char hwinfo[32] = {}; 2006 struct nfp_nsp *nsp; 2007 u32 index; 2008 int err; 2009 2010 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 2011 if (err) 2012 return err; 2013 2014 snprintf(hwinfo, sizeof(hwinfo), 2015 "eth%u.mac=%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 2016 index, mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], 2017 mac_addr[4], mac_addr[5]); 2018 2019 err = nfp_nsp_hwinfo_set(nsp, hwinfo, sizeof(hwinfo)); 2020 nfp_nsp_close(nsp); 2021 if (err) { 2022 netdev_err(netdev, "HWinfo set failed: %d, hwinfo: %s\n", 2023 err, hwinfo); 2024 return -EOPNOTSUPP; 2025 } 2026 2027 return 0; 2028 } 2029 2030 static int 2031 nfp_net_get_eeprom(struct net_device *netdev, 2032 struct ethtool_eeprom *eeprom, u8 *bytes) 2033 { 2034 struct nfp_app *app = nfp_app_from_netdev(netdev); 2035 u8 buf[NFP_EEPROM_LEN] = {}; 2036 2037 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 2038 return -EOPNOTSUPP; 2039 2040 if (eeprom->len == 0) 2041 return -EINVAL; 2042 2043 eeprom->magic = app->pdev->vendor | (app->pdev->device << 16); 2044 memcpy(bytes, buf + eeprom->offset, eeprom->len); 2045 2046 return 0; 2047 } 2048 2049 static int 2050 nfp_net_set_eeprom(struct net_device *netdev, 2051 struct ethtool_eeprom *eeprom, u8 *bytes) 2052 { 2053 struct nfp_app *app = nfp_app_from_netdev(netdev); 2054 u8 buf[NFP_EEPROM_LEN] = {}; 2055 2056 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 2057 return -EOPNOTSUPP; 2058 2059 if (eeprom->len == 0) 2060 return -EINVAL; 2061 2062 if (eeprom->magic != (app->pdev->vendor | app->pdev->device << 16)) 2063 return -EINVAL; 2064 2065 memcpy(buf + eeprom->offset, bytes, eeprom->len); 2066 if (nfp_net_set_port_mac_by_hwinfo(netdev, buf)) 2067 return -EOPNOTSUPP; 2068 2069 return 0; 2070 } 2071 2072 static const struct ethtool_ops nfp_net_ethtool_ops = { 2073 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 2074 ETHTOOL_COALESCE_MAX_FRAMES | 2075 ETHTOOL_COALESCE_USE_ADAPTIVE, 2076 .get_drvinfo = nfp_net_get_drvinfo, 2077 .nway_reset = nfp_net_nway_reset, 2078 .get_link = ethtool_op_get_link, 2079 .get_ringparam = nfp_net_get_ringparam, 2080 .set_ringparam = nfp_net_set_ringparam, 2081 .self_test = nfp_net_self_test, 2082 .get_strings = nfp_net_get_strings, 2083 .get_ethtool_stats = nfp_net_get_stats, 2084 .get_sset_count = nfp_net_get_sset_count, 2085 .get_rxnfc = nfp_net_get_rxnfc, 2086 .set_rxnfc = nfp_net_set_rxnfc, 2087 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size, 2088 .get_rxfh_key_size = nfp_net_get_rxfh_key_size, 2089 .get_rxfh = nfp_net_get_rxfh, 2090 .set_rxfh = nfp_net_set_rxfh, 2091 .get_regs_len = nfp_net_get_regs_len, 2092 .get_regs = nfp_net_get_regs, 2093 .set_dump = nfp_app_set_dump, 2094 .get_dump_flag = nfp_app_get_dump_flag, 2095 .get_dump_data = nfp_app_get_dump_data, 2096 .get_eeprom_len = nfp_net_get_eeprom_len, 2097 .get_eeprom = nfp_net_get_eeprom, 2098 .set_eeprom = nfp_net_set_eeprom, 2099 .get_module_info = nfp_port_get_module_info, 2100 .get_module_eeprom = nfp_port_get_module_eeprom, 2101 .get_coalesce = nfp_net_get_coalesce, 2102 .set_coalesce = nfp_net_set_coalesce, 2103 .get_channels = nfp_net_get_channels, 2104 .set_channels = nfp_net_set_channels, 2105 .get_link_ksettings = nfp_net_get_link_ksettings, 2106 .set_link_ksettings = nfp_net_set_link_ksettings, 2107 .get_fecparam = nfp_port_get_fecparam, 2108 .set_fecparam = nfp_port_set_fecparam, 2109 .get_pauseparam = nfp_port_get_pauseparam, 2110 .set_phys_id = nfp_net_set_phys_id, 2111 }; 2112 2113 const struct ethtool_ops nfp_port_ethtool_ops = { 2114 .get_drvinfo = nfp_app_get_drvinfo, 2115 .nway_reset = nfp_net_nway_reset, 2116 .get_link = ethtool_op_get_link, 2117 .get_strings = nfp_port_get_strings, 2118 .get_ethtool_stats = nfp_port_get_stats, 2119 .self_test = nfp_net_self_test, 2120 .get_sset_count = nfp_port_get_sset_count, 2121 .set_dump = nfp_app_set_dump, 2122 .get_dump_flag = nfp_app_get_dump_flag, 2123 .get_dump_data = nfp_app_get_dump_data, 2124 .get_eeprom_len = nfp_net_get_eeprom_len, 2125 .get_eeprom = nfp_net_get_eeprom, 2126 .set_eeprom = nfp_net_set_eeprom, 2127 .get_module_info = nfp_port_get_module_info, 2128 .get_module_eeprom = nfp_port_get_module_eeprom, 2129 .get_link_ksettings = nfp_net_get_link_ksettings, 2130 .set_link_ksettings = nfp_net_set_link_ksettings, 2131 .get_fecparam = nfp_port_get_fecparam, 2132 .set_fecparam = nfp_port_set_fecparam, 2133 .get_pauseparam = nfp_port_get_pauseparam, 2134 .set_phys_id = nfp_net_set_phys_id, 2135 }; 2136 2137 void nfp_net_set_ethtool_ops(struct net_device *netdev) 2138 { 2139 netdev->ethtool_ops = &nfp_net_ethtool_ops; 2140 } 2141