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 /** 297 * nfp_net_get_link_ksettings - Get Link Speed settings 298 * @netdev: network interface device structure 299 * @cmd: ethtool command 300 * 301 * Reports speed settings based on info in the BAR provided by the fw. 302 */ 303 static int 304 nfp_net_get_link_ksettings(struct net_device *netdev, 305 struct ethtool_link_ksettings *cmd) 306 { 307 struct nfp_eth_table_port *eth_port; 308 struct nfp_port *port; 309 struct nfp_net *nn; 310 unsigned int speed; 311 u16 sts; 312 313 /* Init to unknowns */ 314 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 315 cmd->base.port = PORT_OTHER; 316 cmd->base.speed = SPEED_UNKNOWN; 317 cmd->base.duplex = DUPLEX_UNKNOWN; 318 319 port = nfp_port_from_netdev(netdev); 320 eth_port = nfp_port_get_eth_port(port); 321 if (eth_port) { 322 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 323 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 324 if (eth_port->supp_aneg) { 325 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 326 if (eth_port->aneg == NFP_ANEG_AUTO) { 327 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 328 cmd->base.autoneg = AUTONEG_ENABLE; 329 } 330 } 331 nfp_net_set_fec_link_mode(eth_port, cmd); 332 } 333 334 if (!netif_carrier_ok(netdev)) 335 return 0; 336 337 /* Use link speed from ETH table if available, otherwise try the BAR */ 338 if (eth_port) { 339 cmd->base.port = eth_port->port_type; 340 cmd->base.speed = eth_port->speed; 341 cmd->base.duplex = DUPLEX_FULL; 342 return 0; 343 } 344 345 if (!nfp_netdev_is_nfp_net(netdev)) 346 return -EOPNOTSUPP; 347 nn = netdev_priv(netdev); 348 349 sts = nn_readw(nn, NFP_NET_CFG_STS); 350 speed = nfp_net_lr2speed(FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts)); 351 if (!speed) 352 return -EOPNOTSUPP; 353 354 if (speed != SPEED_UNKNOWN) { 355 cmd->base.speed = speed; 356 cmd->base.duplex = DUPLEX_FULL; 357 } 358 359 return 0; 360 } 361 362 static int 363 nfp_net_set_link_ksettings(struct net_device *netdev, 364 const struct ethtool_link_ksettings *cmd) 365 { 366 bool req_aneg = (cmd->base.autoneg == AUTONEG_ENABLE); 367 struct nfp_eth_table_port *eth_port; 368 struct nfp_port *port; 369 struct nfp_nsp *nsp; 370 int err; 371 372 port = nfp_port_from_netdev(netdev); 373 eth_port = __nfp_port_get_eth_port(port); 374 if (!eth_port) 375 return -EOPNOTSUPP; 376 377 if (netif_running(netdev)) { 378 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until driver reload.\n"); 379 return -EBUSY; 380 } 381 382 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index); 383 if (IS_ERR(nsp)) 384 return PTR_ERR(nsp); 385 386 if (req_aneg && !eth_port->supp_aneg) { 387 netdev_warn(netdev, "Autoneg is not supported.\n"); 388 err = -EOPNOTSUPP; 389 goto err_bad_set; 390 } 391 392 err = __nfp_eth_set_aneg(nsp, req_aneg ? NFP_ANEG_AUTO : NFP_ANEG_DISABLED); 393 if (err) 394 goto err_bad_set; 395 396 if (cmd->base.speed != SPEED_UNKNOWN) { 397 u32 speed = cmd->base.speed / eth_port->lanes; 398 399 if (req_aneg) { 400 netdev_err(netdev, "Speed changing is not allowed when working on autoneg mode.\n"); 401 err = -EINVAL; 402 goto err_bad_set; 403 } 404 405 err = __nfp_eth_set_speed(nsp, speed); 406 if (err) 407 goto err_bad_set; 408 } 409 410 err = nfp_eth_config_commit_end(nsp); 411 if (err > 0) 412 return 0; /* no change */ 413 414 nfp_net_refresh_port_table(port); 415 416 return err; 417 418 err_bad_set: 419 nfp_eth_config_cleanup_end(nsp); 420 return err; 421 } 422 423 static void nfp_net_get_ringparam(struct net_device *netdev, 424 struct ethtool_ringparam *ring, 425 struct kernel_ethtool_ringparam *kernel_ring, 426 struct netlink_ext_ack *extack) 427 { 428 struct nfp_net *nn = netdev_priv(netdev); 429 u32 qc_max = nn->dev_info->max_qc_size; 430 431 ring->rx_max_pending = qc_max; 432 ring->tx_max_pending = qc_max / nn->dp.ops->tx_min_desc_per_pkt; 433 ring->rx_pending = nn->dp.rxd_cnt; 434 ring->tx_pending = nn->dp.txd_cnt; 435 } 436 437 static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt) 438 { 439 struct nfp_net_dp *dp; 440 441 dp = nfp_net_clone_dp(nn); 442 if (!dp) 443 return -ENOMEM; 444 445 dp->rxd_cnt = rxd_cnt; 446 dp->txd_cnt = txd_cnt; 447 448 return nfp_net_ring_reconfig(nn, dp, NULL); 449 } 450 451 static int nfp_net_set_ringparam(struct net_device *netdev, 452 struct ethtool_ringparam *ring, 453 struct kernel_ethtool_ringparam *kernel_ring, 454 struct netlink_ext_ack *extack) 455 { 456 u32 tx_dpp, qc_min, qc_max, rxd_cnt, txd_cnt; 457 struct nfp_net *nn = netdev_priv(netdev); 458 459 /* We don't have separate queues/rings for small/large frames. */ 460 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 461 return -EINVAL; 462 463 qc_min = nn->dev_info->min_qc_size; 464 qc_max = nn->dev_info->max_qc_size; 465 tx_dpp = nn->dp.ops->tx_min_desc_per_pkt; 466 /* Round up to supported values */ 467 rxd_cnt = roundup_pow_of_two(ring->rx_pending); 468 txd_cnt = roundup_pow_of_two(ring->tx_pending); 469 470 if (rxd_cnt < qc_min || rxd_cnt > qc_max || 471 txd_cnt < qc_min / tx_dpp || txd_cnt > qc_max / tx_dpp) 472 return -EINVAL; 473 474 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt) 475 return 0; 476 477 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n", 478 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt); 479 480 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt); 481 } 482 483 static int nfp_test_link(struct net_device *netdev) 484 { 485 if (!netif_carrier_ok(netdev) || !(netdev->flags & IFF_UP)) 486 return 1; 487 488 return 0; 489 } 490 491 static int nfp_test_nsp(struct net_device *netdev) 492 { 493 struct nfp_app *app = nfp_app_from_netdev(netdev); 494 struct nfp_nsp_identify *nspi; 495 struct nfp_nsp *nsp; 496 int err; 497 498 nsp = nfp_nsp_open(app->cpp); 499 if (IS_ERR(nsp)) { 500 err = PTR_ERR(nsp); 501 netdev_info(netdev, "NSP Test: failed to access the NSP: %d\n", err); 502 goto exit; 503 } 504 505 if (nfp_nsp_get_abi_ver_minor(nsp) < 15) { 506 err = -EOPNOTSUPP; 507 goto exit_close_nsp; 508 } 509 510 nspi = kzalloc(sizeof(*nspi), GFP_KERNEL); 511 if (!nspi) { 512 err = -ENOMEM; 513 goto exit_close_nsp; 514 } 515 516 err = nfp_nsp_read_identify(nsp, nspi, sizeof(*nspi)); 517 if (err < 0) 518 netdev_info(netdev, "NSP Test: reading bsp version failed %d\n", err); 519 520 kfree(nspi); 521 exit_close_nsp: 522 nfp_nsp_close(nsp); 523 exit: 524 return err; 525 } 526 527 static int nfp_test_fw(struct net_device *netdev) 528 { 529 struct nfp_net *nn = netdev_priv(netdev); 530 int err; 531 532 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_GEN); 533 if (err) 534 netdev_info(netdev, "FW Test: update failed %d\n", err); 535 536 return err; 537 } 538 539 static int nfp_test_reg(struct net_device *netdev) 540 { 541 struct nfp_app *app = nfp_app_from_netdev(netdev); 542 struct nfp_cpp *cpp = app->cpp; 543 u32 model = nfp_cpp_model(cpp); 544 u32 value; 545 int err; 546 547 err = nfp_cpp_model_autodetect(cpp, &value); 548 if (err < 0) { 549 netdev_info(netdev, "REG Test: NFP model detection failed %d\n", err); 550 return err; 551 } 552 553 return (value == model) ? 0 : 1; 554 } 555 556 static bool link_test_supported(struct net_device *netdev) 557 { 558 return true; 559 } 560 561 static bool nsp_test_supported(struct net_device *netdev) 562 { 563 if (nfp_app_from_netdev(netdev)) 564 return true; 565 566 return false; 567 } 568 569 static bool fw_test_supported(struct net_device *netdev) 570 { 571 if (nfp_netdev_is_nfp_net(netdev)) 572 return true; 573 574 return false; 575 } 576 577 static bool reg_test_supported(struct net_device *netdev) 578 { 579 if (nfp_app_from_netdev(netdev)) 580 return true; 581 582 return false; 583 } 584 585 static struct nfp_self_test_item { 586 char name[ETH_GSTRING_LEN]; 587 bool (*is_supported)(struct net_device *dev); 588 int (*func)(struct net_device *dev); 589 } nfp_self_test[] = { 590 {"Link Test", link_test_supported, nfp_test_link}, 591 {"NSP Test", nsp_test_supported, nfp_test_nsp}, 592 {"Firmware Test", fw_test_supported, nfp_test_fw}, 593 {"Register Test", reg_test_supported, nfp_test_reg} 594 }; 595 596 #define NFP_TEST_TOTAL_NUM ARRAY_SIZE(nfp_self_test) 597 598 static void nfp_get_self_test_strings(struct net_device *netdev, u8 *data) 599 { 600 int i; 601 602 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) 603 if (nfp_self_test[i].is_supported(netdev)) 604 ethtool_sprintf(&data, nfp_self_test[i].name); 605 } 606 607 static int nfp_get_self_test_count(struct net_device *netdev) 608 { 609 int i, count = 0; 610 611 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) 612 if (nfp_self_test[i].is_supported(netdev)) 613 count++; 614 615 return count; 616 } 617 618 static void nfp_net_self_test(struct net_device *netdev, struct ethtool_test *eth_test, 619 u64 *data) 620 { 621 int i, ret, count = 0; 622 623 netdev_info(netdev, "Start self test\n"); 624 625 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) { 626 if (nfp_self_test[i].is_supported(netdev)) { 627 ret = nfp_self_test[i].func(netdev); 628 if (ret) 629 eth_test->flags |= ETH_TEST_FL_FAILED; 630 data[count++] = ret; 631 } 632 } 633 634 netdev_info(netdev, "Test end\n"); 635 } 636 637 static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev) 638 { 639 struct nfp_net *nn = netdev_priv(netdev); 640 641 return NN_RVEC_GATHER_STATS + nn->max_r_vecs * NN_RVEC_PER_Q_STATS + 642 NN_CTRL_PATH_STATS; 643 } 644 645 static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data) 646 { 647 struct nfp_net *nn = netdev_priv(netdev); 648 int i; 649 650 for (i = 0; i < nn->max_r_vecs; i++) { 651 ethtool_sprintf(&data, "rvec_%u_rx_pkts", i); 652 ethtool_sprintf(&data, "rvec_%u_tx_pkts", i); 653 ethtool_sprintf(&data, "rvec_%u_tx_busy", i); 654 } 655 656 ethtool_sprintf(&data, "hw_rx_csum_ok"); 657 ethtool_sprintf(&data, "hw_rx_csum_inner_ok"); 658 ethtool_sprintf(&data, "hw_rx_csum_complete"); 659 ethtool_sprintf(&data, "hw_rx_csum_err"); 660 ethtool_sprintf(&data, "rx_replace_buf_alloc_fail"); 661 ethtool_sprintf(&data, "rx_tls_decrypted_packets"); 662 ethtool_sprintf(&data, "hw_tx_csum"); 663 ethtool_sprintf(&data, "hw_tx_inner_csum"); 664 ethtool_sprintf(&data, "tx_gather"); 665 ethtool_sprintf(&data, "tx_lso"); 666 ethtool_sprintf(&data, "tx_tls_encrypted_packets"); 667 ethtool_sprintf(&data, "tx_tls_ooo"); 668 ethtool_sprintf(&data, "tx_tls_drop_no_sync_data"); 669 670 ethtool_sprintf(&data, "hw_tls_no_space"); 671 ethtool_sprintf(&data, "rx_tls_resync_req_ok"); 672 ethtool_sprintf(&data, "rx_tls_resync_req_ign"); 673 ethtool_sprintf(&data, "rx_tls_resync_sent"); 674 675 return data; 676 } 677 678 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data) 679 { 680 u64 gathered_stats[NN_RVEC_GATHER_STATS] = {}; 681 struct nfp_net *nn = netdev_priv(netdev); 682 u64 tmp[NN_RVEC_GATHER_STATS]; 683 unsigned int i, j; 684 685 for (i = 0; i < nn->max_r_vecs; i++) { 686 unsigned int start; 687 688 do { 689 start = u64_stats_fetch_begin_irq(&nn->r_vecs[i].rx_sync); 690 data[0] = nn->r_vecs[i].rx_pkts; 691 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok; 692 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok; 693 tmp[2] = nn->r_vecs[i].hw_csum_rx_complete; 694 tmp[3] = nn->r_vecs[i].hw_csum_rx_error; 695 tmp[4] = nn->r_vecs[i].rx_replace_buf_alloc_fail; 696 tmp[5] = nn->r_vecs[i].hw_tls_rx; 697 } while (u64_stats_fetch_retry_irq(&nn->r_vecs[i].rx_sync, start)); 698 699 do { 700 start = u64_stats_fetch_begin_irq(&nn->r_vecs[i].tx_sync); 701 data[1] = nn->r_vecs[i].tx_pkts; 702 data[2] = nn->r_vecs[i].tx_busy; 703 tmp[6] = nn->r_vecs[i].hw_csum_tx; 704 tmp[7] = nn->r_vecs[i].hw_csum_tx_inner; 705 tmp[8] = nn->r_vecs[i].tx_gather; 706 tmp[9] = nn->r_vecs[i].tx_lso; 707 tmp[10] = nn->r_vecs[i].hw_tls_tx; 708 tmp[11] = nn->r_vecs[i].tls_tx_fallback; 709 tmp[12] = nn->r_vecs[i].tls_tx_no_fallback; 710 } while (u64_stats_fetch_retry_irq(&nn->r_vecs[i].tx_sync, start)); 711 712 data += NN_RVEC_PER_Q_STATS; 713 714 for (j = 0; j < NN_RVEC_GATHER_STATS; j++) 715 gathered_stats[j] += tmp[j]; 716 } 717 718 for (j = 0; j < NN_RVEC_GATHER_STATS; j++) 719 *data++ = gathered_stats[j]; 720 721 *data++ = atomic_read(&nn->ktls_no_space); 722 *data++ = atomic_read(&nn->ktls_rx_resync_req); 723 *data++ = atomic_read(&nn->ktls_rx_resync_ign); 724 *data++ = atomic_read(&nn->ktls_rx_resync_sent); 725 726 return data; 727 } 728 729 static unsigned int nfp_vnic_get_hw_stats_count(unsigned int num_vecs) 730 { 731 return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4; 732 } 733 734 static u8 * 735 nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr) 736 { 737 int swap_off, i; 738 739 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2); 740 /* If repr is true first add SWITCH_STATS_LEN and then subtract it 741 * effectively swapping the RX and TX statistics (giving us the RX 742 * and TX from perspective of the switch). 743 */ 744 swap_off = repr * NN_ET_SWITCH_STATS_LEN; 745 746 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++) 747 ethtool_sprintf(&data, nfp_net_et_stats[i + swap_off].name); 748 749 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++) 750 ethtool_sprintf(&data, nfp_net_et_stats[i - swap_off].name); 751 752 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++) 753 ethtool_sprintf(&data, nfp_net_et_stats[i].name); 754 755 for (i = 0; i < num_vecs; i++) { 756 ethtool_sprintf(&data, "rxq_%u_pkts", i); 757 ethtool_sprintf(&data, "rxq_%u_bytes", i); 758 ethtool_sprintf(&data, "txq_%u_pkts", i); 759 ethtool_sprintf(&data, "txq_%u_bytes", i); 760 } 761 762 return data; 763 } 764 765 static u64 * 766 nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, unsigned int num_vecs) 767 { 768 unsigned int i; 769 770 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++) 771 *data++ = readq(mem + nfp_net_et_stats[i].off); 772 773 for (i = 0; i < num_vecs; i++) { 774 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 775 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 776 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 777 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 778 } 779 780 return data; 781 } 782 783 static unsigned int nfp_vnic_get_tlv_stats_count(struct nfp_net *nn) 784 { 785 return nn->tlv_caps.vnic_stats_cnt + nn->max_r_vecs * 4; 786 } 787 788 static u8 *nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 *data) 789 { 790 unsigned int i, id; 791 u8 __iomem *mem; 792 u64 id_word = 0; 793 794 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off; 795 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) { 796 if (!(i % 4)) 797 id_word = readq(mem + i * 2); 798 799 id = (u16)id_word; 800 id_word >>= 16; 801 802 if (id < ARRAY_SIZE(nfp_tlv_stat_names) && 803 nfp_tlv_stat_names[id][0]) { 804 memcpy(data, nfp_tlv_stat_names[id], ETH_GSTRING_LEN); 805 data += ETH_GSTRING_LEN; 806 } else { 807 ethtool_sprintf(&data, "dev_unknown_stat%u", id); 808 } 809 } 810 811 for (i = 0; i < nn->max_r_vecs; i++) { 812 ethtool_sprintf(&data, "rxq_%u_pkts", i); 813 ethtool_sprintf(&data, "rxq_%u_bytes", i); 814 ethtool_sprintf(&data, "txq_%u_pkts", i); 815 ethtool_sprintf(&data, "txq_%u_bytes", i); 816 } 817 818 return data; 819 } 820 821 static u64 *nfp_vnic_get_tlv_stats(struct nfp_net *nn, u64 *data) 822 { 823 u8 __iomem *mem; 824 unsigned int i; 825 826 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off; 827 mem += roundup(2 * nn->tlv_caps.vnic_stats_cnt, 8); 828 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) 829 *data++ = readq(mem + i * 8); 830 831 mem = nn->dp.ctrl_bar; 832 for (i = 0; i < nn->max_r_vecs; i++) { 833 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 834 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 835 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 836 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 837 } 838 839 return data; 840 } 841 842 static unsigned int nfp_mac_get_stats_count(struct net_device *netdev) 843 { 844 struct nfp_port *port; 845 846 port = nfp_port_from_netdev(netdev); 847 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 848 return 0; 849 850 return ARRAY_SIZE(nfp_mac_et_stats); 851 } 852 853 static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data) 854 { 855 struct nfp_port *port; 856 unsigned int i; 857 858 port = nfp_port_from_netdev(netdev); 859 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 860 return data; 861 862 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 863 ethtool_sprintf(&data, "mac.%s", nfp_mac_et_stats[i].name); 864 865 return data; 866 } 867 868 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data) 869 { 870 struct nfp_port *port; 871 unsigned int i; 872 873 port = nfp_port_from_netdev(netdev); 874 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 875 return data; 876 877 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 878 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off); 879 880 return data; 881 } 882 883 static void nfp_net_get_strings(struct net_device *netdev, 884 u32 stringset, u8 *data) 885 { 886 struct nfp_net *nn = netdev_priv(netdev); 887 888 switch (stringset) { 889 case ETH_SS_STATS: 890 data = nfp_vnic_get_sw_stats_strings(netdev, data); 891 if (!nn->tlv_caps.vnic_stats_off) 892 data = nfp_vnic_get_hw_stats_strings(data, 893 nn->max_r_vecs, 894 false); 895 else 896 data = nfp_vnic_get_tlv_stats_strings(nn, data); 897 data = nfp_mac_get_stats_strings(netdev, data); 898 data = nfp_app_port_get_stats_strings(nn->port, data); 899 break; 900 case ETH_SS_TEST: 901 nfp_get_self_test_strings(netdev, data); 902 break; 903 } 904 } 905 906 static void 907 nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 908 u64 *data) 909 { 910 struct nfp_net *nn = netdev_priv(netdev); 911 912 data = nfp_vnic_get_sw_stats(netdev, data); 913 if (!nn->tlv_caps.vnic_stats_off) 914 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar, 915 nn->max_r_vecs); 916 else 917 data = nfp_vnic_get_tlv_stats(nn, data); 918 data = nfp_mac_get_stats(netdev, data); 919 data = nfp_app_port_get_stats(nn->port, data); 920 } 921 922 static int nfp_net_get_sset_count(struct net_device *netdev, int sset) 923 { 924 struct nfp_net *nn = netdev_priv(netdev); 925 unsigned int cnt; 926 927 switch (sset) { 928 case ETH_SS_STATS: 929 cnt = nfp_vnic_get_sw_stats_count(netdev); 930 if (!nn->tlv_caps.vnic_stats_off) 931 cnt += nfp_vnic_get_hw_stats_count(nn->max_r_vecs); 932 else 933 cnt += nfp_vnic_get_tlv_stats_count(nn); 934 cnt += nfp_mac_get_stats_count(netdev); 935 cnt += nfp_app_port_get_stats_count(nn->port); 936 return cnt; 937 case ETH_SS_TEST: 938 return nfp_get_self_test_count(netdev); 939 default: 940 return -EOPNOTSUPP; 941 } 942 } 943 944 static void nfp_port_get_strings(struct net_device *netdev, 945 u32 stringset, u8 *data) 946 { 947 struct nfp_port *port = nfp_port_from_netdev(netdev); 948 949 switch (stringset) { 950 case ETH_SS_STATS: 951 if (nfp_port_is_vnic(port)) 952 data = nfp_vnic_get_hw_stats_strings(data, 0, true); 953 else 954 data = nfp_mac_get_stats_strings(netdev, data); 955 data = nfp_app_port_get_stats_strings(port, data); 956 break; 957 case ETH_SS_TEST: 958 nfp_get_self_test_strings(netdev, data); 959 break; 960 } 961 } 962 963 static void 964 nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 965 u64 *data) 966 { 967 struct nfp_port *port = nfp_port_from_netdev(netdev); 968 969 if (nfp_port_is_vnic(port)) 970 data = nfp_vnic_get_hw_stats(data, port->vnic, 0); 971 else 972 data = nfp_mac_get_stats(netdev, data); 973 data = nfp_app_port_get_stats(port, data); 974 } 975 976 static int nfp_port_get_sset_count(struct net_device *netdev, int sset) 977 { 978 struct nfp_port *port = nfp_port_from_netdev(netdev); 979 unsigned int count; 980 981 switch (sset) { 982 case ETH_SS_STATS: 983 if (nfp_port_is_vnic(port)) 984 count = nfp_vnic_get_hw_stats_count(0); 985 else 986 count = nfp_mac_get_stats_count(netdev); 987 count += nfp_app_port_get_stats_count(port); 988 return count; 989 case ETH_SS_TEST: 990 return nfp_get_self_test_count(netdev); 991 default: 992 return -EOPNOTSUPP; 993 } 994 } 995 996 static int nfp_port_fec_ethtool_to_nsp(u32 fec) 997 { 998 switch (fec) { 999 case ETHTOOL_FEC_AUTO: 1000 return NFP_FEC_AUTO_BIT; 1001 case ETHTOOL_FEC_OFF: 1002 return NFP_FEC_DISABLED_BIT; 1003 case ETHTOOL_FEC_RS: 1004 return NFP_FEC_REED_SOLOMON_BIT; 1005 case ETHTOOL_FEC_BASER: 1006 return NFP_FEC_BASER_BIT; 1007 default: 1008 /* NSP only supports a single mode at a time */ 1009 return -EOPNOTSUPP; 1010 } 1011 } 1012 1013 static u32 nfp_port_fec_nsp_to_ethtool(u32 fec) 1014 { 1015 u32 result = 0; 1016 1017 if (fec & NFP_FEC_AUTO) 1018 result |= ETHTOOL_FEC_AUTO; 1019 if (fec & NFP_FEC_BASER) 1020 result |= ETHTOOL_FEC_BASER; 1021 if (fec & NFP_FEC_REED_SOLOMON) 1022 result |= ETHTOOL_FEC_RS; 1023 if (fec & NFP_FEC_DISABLED) 1024 result |= ETHTOOL_FEC_OFF; 1025 1026 return result ?: ETHTOOL_FEC_NONE; 1027 } 1028 1029 static int 1030 nfp_port_get_fecparam(struct net_device *netdev, 1031 struct ethtool_fecparam *param) 1032 { 1033 struct nfp_eth_table_port *eth_port; 1034 struct nfp_port *port; 1035 1036 param->active_fec = ETHTOOL_FEC_NONE; 1037 param->fec = ETHTOOL_FEC_NONE; 1038 1039 port = nfp_port_from_netdev(netdev); 1040 eth_port = nfp_port_get_eth_port(port); 1041 if (!eth_port) 1042 return -EOPNOTSUPP; 1043 1044 if (!nfp_eth_can_support_fec(eth_port)) 1045 return 0; 1046 1047 param->fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec_modes_supported); 1048 param->active_fec = nfp_port_fec_nsp_to_ethtool(BIT(eth_port->act_fec)); 1049 1050 return 0; 1051 } 1052 1053 static int 1054 nfp_port_set_fecparam(struct net_device *netdev, 1055 struct ethtool_fecparam *param) 1056 { 1057 struct nfp_eth_table_port *eth_port; 1058 struct nfp_port *port; 1059 int err, fec; 1060 1061 port = nfp_port_from_netdev(netdev); 1062 eth_port = nfp_port_get_eth_port(port); 1063 if (!eth_port) 1064 return -EOPNOTSUPP; 1065 1066 if (!nfp_eth_can_support_fec(eth_port)) 1067 return -EOPNOTSUPP; 1068 1069 fec = nfp_port_fec_ethtool_to_nsp(param->fec); 1070 if (fec < 0) 1071 return fec; 1072 1073 err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec); 1074 if (!err) 1075 /* Only refresh if we did something */ 1076 nfp_net_refresh_port_table(port); 1077 1078 return err < 0 ? err : 0; 1079 } 1080 1081 /* RX network flow classification (RSS, filters, etc) 1082 */ 1083 static u32 ethtool_flow_to_nfp_flag(u32 flow_type) 1084 { 1085 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = { 1086 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP, 1087 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP, 1088 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP, 1089 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP, 1090 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4, 1091 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6, 1092 }; 1093 1094 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp)) 1095 return 0; 1096 1097 return xlate_ethtool_to_nfp[flow_type]; 1098 } 1099 1100 static int nfp_net_get_rss_hash_opts(struct nfp_net *nn, 1101 struct ethtool_rxnfc *cmd) 1102 { 1103 u32 nfp_rss_flag; 1104 1105 cmd->data = 0; 1106 1107 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1108 return -EOPNOTSUPP; 1109 1110 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type); 1111 if (!nfp_rss_flag) 1112 return -EINVAL; 1113 1114 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1115 if (nn->rss_cfg & nfp_rss_flag) 1116 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1117 1118 return 0; 1119 } 1120 1121 static int nfp_net_get_rxnfc(struct net_device *netdev, 1122 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1123 { 1124 struct nfp_net *nn = netdev_priv(netdev); 1125 1126 switch (cmd->cmd) { 1127 case ETHTOOL_GRXRINGS: 1128 cmd->data = nn->dp.num_rx_rings; 1129 return 0; 1130 case ETHTOOL_GRXFH: 1131 return nfp_net_get_rss_hash_opts(nn, cmd); 1132 default: 1133 return -EOPNOTSUPP; 1134 } 1135 } 1136 1137 static int nfp_net_set_rss_hash_opt(struct nfp_net *nn, 1138 struct ethtool_rxnfc *nfc) 1139 { 1140 u32 new_rss_cfg = nn->rss_cfg; 1141 u32 nfp_rss_flag; 1142 int err; 1143 1144 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1145 return -EOPNOTSUPP; 1146 1147 /* RSS only supports IP SA/DA and L4 src/dst ports */ 1148 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1149 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1150 return -EINVAL; 1151 1152 /* We need at least the IP SA/DA fields for hashing */ 1153 if (!(nfc->data & RXH_IP_SRC) || 1154 !(nfc->data & RXH_IP_DST)) 1155 return -EINVAL; 1156 1157 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type); 1158 if (!nfp_rss_flag) 1159 return -EINVAL; 1160 1161 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1162 case 0: 1163 new_rss_cfg &= ~nfp_rss_flag; 1164 break; 1165 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1166 new_rss_cfg |= nfp_rss_flag; 1167 break; 1168 default: 1169 return -EINVAL; 1170 } 1171 1172 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc); 1173 new_rss_cfg |= NFP_NET_CFG_RSS_MASK; 1174 1175 if (new_rss_cfg == nn->rss_cfg) 1176 return 0; 1177 1178 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL); 1179 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1180 if (err) 1181 return err; 1182 1183 nn->rss_cfg = new_rss_cfg; 1184 1185 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg); 1186 return 0; 1187 } 1188 1189 static int nfp_net_set_rxnfc(struct net_device *netdev, 1190 struct ethtool_rxnfc *cmd) 1191 { 1192 struct nfp_net *nn = netdev_priv(netdev); 1193 1194 switch (cmd->cmd) { 1195 case ETHTOOL_SRXFH: 1196 return nfp_net_set_rss_hash_opt(nn, cmd); 1197 default: 1198 return -EOPNOTSUPP; 1199 } 1200 } 1201 1202 static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev) 1203 { 1204 struct nfp_net *nn = netdev_priv(netdev); 1205 1206 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1207 return 0; 1208 1209 return ARRAY_SIZE(nn->rss_itbl); 1210 } 1211 1212 static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev) 1213 { 1214 struct nfp_net *nn = netdev_priv(netdev); 1215 1216 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1217 return -EOPNOTSUPP; 1218 1219 return nfp_net_rss_key_sz(nn); 1220 } 1221 1222 static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1223 u8 *hfunc) 1224 { 1225 struct nfp_net *nn = netdev_priv(netdev); 1226 int i; 1227 1228 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1229 return -EOPNOTSUPP; 1230 1231 if (indir) 1232 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1233 indir[i] = nn->rss_itbl[i]; 1234 if (key) 1235 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn)); 1236 if (hfunc) { 1237 *hfunc = nn->rss_hfunc; 1238 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT) 1239 *hfunc = ETH_RSS_HASH_UNKNOWN; 1240 } 1241 1242 return 0; 1243 } 1244 1245 static int nfp_net_set_rxfh(struct net_device *netdev, 1246 const u32 *indir, const u8 *key, 1247 const u8 hfunc) 1248 { 1249 struct nfp_net *nn = netdev_priv(netdev); 1250 int i; 1251 1252 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) || 1253 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc)) 1254 return -EOPNOTSUPP; 1255 1256 if (!key && !indir) 1257 return 0; 1258 1259 if (key) { 1260 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn)); 1261 nfp_net_rss_write_key(nn); 1262 } 1263 if (indir) { 1264 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1265 nn->rss_itbl[i] = indir[i]; 1266 1267 nfp_net_rss_write_itbl(nn); 1268 } 1269 1270 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1271 } 1272 1273 /* Dump BAR registers 1274 */ 1275 static int nfp_net_get_regs_len(struct net_device *netdev) 1276 { 1277 return NFP_NET_CFG_BAR_SZ; 1278 } 1279 1280 static void nfp_net_get_regs(struct net_device *netdev, 1281 struct ethtool_regs *regs, void *p) 1282 { 1283 struct nfp_net *nn = netdev_priv(netdev); 1284 u32 *regs_buf = p; 1285 int i; 1286 1287 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION); 1288 1289 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++) 1290 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32))); 1291 } 1292 1293 static int nfp_net_get_coalesce(struct net_device *netdev, 1294 struct ethtool_coalesce *ec, 1295 struct kernel_ethtool_coalesce *kernel_coal, 1296 struct netlink_ext_ack *extack) 1297 { 1298 struct nfp_net *nn = netdev_priv(netdev); 1299 1300 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1301 return -EINVAL; 1302 1303 ec->use_adaptive_rx_coalesce = nn->rx_coalesce_adapt_on; 1304 ec->use_adaptive_tx_coalesce = nn->tx_coalesce_adapt_on; 1305 1306 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs; 1307 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames; 1308 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs; 1309 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames; 1310 1311 return 0; 1312 } 1313 1314 /* Other debug dumps 1315 */ 1316 static int 1317 nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer) 1318 { 1319 struct nfp_resource *res; 1320 int ret; 1321 1322 if (!app) 1323 return -EOPNOTSUPP; 1324 1325 dump->version = 1; 1326 dump->flag = NFP_DUMP_NSP_DIAG; 1327 1328 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG); 1329 if (IS_ERR(res)) 1330 return PTR_ERR(res); 1331 1332 if (buffer) { 1333 if (dump->len != nfp_resource_size(res)) { 1334 ret = -EINVAL; 1335 goto exit_release; 1336 } 1337 1338 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res), 1339 nfp_resource_address(res), 1340 buffer, dump->len); 1341 if (ret != dump->len) 1342 ret = ret < 0 ? ret : -EIO; 1343 else 1344 ret = 0; 1345 } else { 1346 dump->len = nfp_resource_size(res); 1347 ret = 0; 1348 } 1349 exit_release: 1350 nfp_resource_release(res); 1351 1352 return ret; 1353 } 1354 1355 /* Set the dump flag/level. Calculate the dump length for flag > 0 only (new TLV 1356 * based dumps), since flag 0 (default) calculates the length in 1357 * nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump 1358 * without setting the flag first, for backward compatibility. 1359 */ 1360 static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val) 1361 { 1362 struct nfp_app *app = nfp_app_from_netdev(netdev); 1363 s64 len; 1364 1365 if (!app) 1366 return -EOPNOTSUPP; 1367 1368 if (val->flag == NFP_DUMP_NSP_DIAG) { 1369 app->pf->dump_flag = val->flag; 1370 return 0; 1371 } 1372 1373 if (!app->pf->dumpspec) 1374 return -EOPNOTSUPP; 1375 1376 len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec, 1377 val->flag); 1378 if (len < 0) 1379 return len; 1380 1381 app->pf->dump_flag = val->flag; 1382 app->pf->dump_len = len; 1383 1384 return 0; 1385 } 1386 1387 static int 1388 nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump) 1389 { 1390 struct nfp_app *app = nfp_app_from_netdev(netdev); 1391 1392 if (!app) 1393 return -EOPNOTSUPP; 1394 1395 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1396 return nfp_dump_nsp_diag(app, dump, NULL); 1397 1398 dump->flag = app->pf->dump_flag; 1399 dump->len = app->pf->dump_len; 1400 1401 return 0; 1402 } 1403 1404 static int 1405 nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump, 1406 void *buffer) 1407 { 1408 struct nfp_app *app = nfp_app_from_netdev(netdev); 1409 1410 if (!app) 1411 return -EOPNOTSUPP; 1412 1413 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1414 return nfp_dump_nsp_diag(app, dump, buffer); 1415 1416 dump->flag = app->pf->dump_flag; 1417 dump->len = app->pf->dump_len; 1418 1419 return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump, 1420 buffer); 1421 } 1422 1423 static int 1424 nfp_port_get_module_info(struct net_device *netdev, 1425 struct ethtool_modinfo *modinfo) 1426 { 1427 struct nfp_eth_table_port *eth_port; 1428 struct nfp_port *port; 1429 unsigned int read_len; 1430 struct nfp_nsp *nsp; 1431 int err = 0; 1432 u8 data; 1433 1434 port = nfp_port_from_netdev(netdev); 1435 /* update port state to get latest interface */ 1436 set_bit(NFP_PORT_CHANGED, &port->flags); 1437 eth_port = nfp_port_get_eth_port(port); 1438 if (!eth_port) 1439 return -EOPNOTSUPP; 1440 1441 nsp = nfp_nsp_open(port->app->cpp); 1442 if (IS_ERR(nsp)) { 1443 err = PTR_ERR(nsp); 1444 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1445 return err; 1446 } 1447 1448 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 1449 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 1450 err = -EOPNOTSUPP; 1451 goto exit_close_nsp; 1452 } 1453 1454 switch (eth_port->interface) { 1455 case NFP_INTERFACE_SFP: 1456 case NFP_INTERFACE_SFP28: 1457 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1458 SFP_SFF8472_COMPLIANCE, &data, 1459 1, &read_len); 1460 if (err < 0) 1461 goto exit_close_nsp; 1462 1463 if (!data) { 1464 modinfo->type = ETH_MODULE_SFF_8079; 1465 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 1466 } else { 1467 modinfo->type = ETH_MODULE_SFF_8472; 1468 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 1469 } 1470 break; 1471 case NFP_INTERFACE_QSFP: 1472 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1473 SFP_SFF_REV_COMPLIANCE, &data, 1474 1, &read_len); 1475 if (err < 0) 1476 goto exit_close_nsp; 1477 1478 if (data < 0x3) { 1479 modinfo->type = ETH_MODULE_SFF_8436; 1480 modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN; 1481 } else { 1482 modinfo->type = ETH_MODULE_SFF_8636; 1483 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 1484 } 1485 break; 1486 case NFP_INTERFACE_QSFP28: 1487 modinfo->type = ETH_MODULE_SFF_8636; 1488 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 1489 break; 1490 default: 1491 netdev_err(netdev, "Unsupported module 0x%x detected\n", 1492 eth_port->interface); 1493 err = -EINVAL; 1494 } 1495 1496 exit_close_nsp: 1497 nfp_nsp_close(nsp); 1498 return err; 1499 } 1500 1501 static int 1502 nfp_port_get_module_eeprom(struct net_device *netdev, 1503 struct ethtool_eeprom *eeprom, u8 *data) 1504 { 1505 struct nfp_eth_table_port *eth_port; 1506 struct nfp_port *port; 1507 struct nfp_nsp *nsp; 1508 int err; 1509 1510 port = nfp_port_from_netdev(netdev); 1511 eth_port = __nfp_port_get_eth_port(port); 1512 if (!eth_port) 1513 return -EOPNOTSUPP; 1514 1515 nsp = nfp_nsp_open(port->app->cpp); 1516 if (IS_ERR(nsp)) { 1517 err = PTR_ERR(nsp); 1518 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1519 return err; 1520 } 1521 1522 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 1523 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 1524 err = -EOPNOTSUPP; 1525 goto exit_close_nsp; 1526 } 1527 1528 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1529 eeprom->offset, data, eeprom->len, 1530 &eeprom->len); 1531 if (err < 0) { 1532 if (eeprom->len) { 1533 netdev_warn(netdev, 1534 "Incomplete read from module EEPROM: %d\n", 1535 err); 1536 err = 0; 1537 } else { 1538 netdev_err(netdev, 1539 "Reading from module EEPROM failed: %d\n", 1540 err); 1541 } 1542 } 1543 1544 exit_close_nsp: 1545 nfp_nsp_close(nsp); 1546 return err; 1547 } 1548 1549 static int nfp_net_set_coalesce(struct net_device *netdev, 1550 struct ethtool_coalesce *ec, 1551 struct kernel_ethtool_coalesce *kernel_coal, 1552 struct netlink_ext_ack *extack) 1553 { 1554 struct nfp_net *nn = netdev_priv(netdev); 1555 unsigned int factor; 1556 1557 /* Compute factor used to convert coalesce '_usecs' parameters to 1558 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp 1559 * count. 1560 */ 1561 factor = nn->tlv_caps.me_freq_mhz / 16; 1562 1563 /* Each pair of (usecs, max_frames) fields specifies that interrupts 1564 * should be coalesced until 1565 * (usecs > 0 && time_since_first_completion >= usecs) || 1566 * (max_frames > 0 && completed_frames >= max_frames) 1567 * 1568 * It is illegal to set both usecs and max_frames to zero as this would 1569 * cause interrupts to never be generated. To disable coalescing, set 1570 * usecs = 0 and max_frames = 1. 1571 * 1572 * Some implementations ignore the value of max_frames and use the 1573 * condition time_since_first_completion >= usecs 1574 */ 1575 1576 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1577 return -EINVAL; 1578 1579 /* ensure valid configuration */ 1580 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames) 1581 return -EINVAL; 1582 1583 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames) 1584 return -EINVAL; 1585 1586 if (nfp_net_coalesce_para_check(ec->rx_coalesce_usecs * factor, 1587 ec->rx_max_coalesced_frames)) 1588 return -EINVAL; 1589 1590 if (nfp_net_coalesce_para_check(ec->tx_coalesce_usecs * factor, 1591 ec->tx_max_coalesced_frames)) 1592 return -EINVAL; 1593 1594 /* configuration is valid */ 1595 nn->rx_coalesce_adapt_on = !!ec->use_adaptive_rx_coalesce; 1596 nn->tx_coalesce_adapt_on = !!ec->use_adaptive_tx_coalesce; 1597 1598 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs; 1599 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames; 1600 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs; 1601 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames; 1602 1603 /* write configuration to device */ 1604 nfp_net_coalesce_write_cfg(nn); 1605 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD); 1606 } 1607 1608 static void nfp_net_get_channels(struct net_device *netdev, 1609 struct ethtool_channels *channel) 1610 { 1611 struct nfp_net *nn = netdev_priv(netdev); 1612 unsigned int num_tx_rings; 1613 1614 num_tx_rings = nn->dp.num_tx_rings; 1615 if (nn->dp.xdp_prog) 1616 num_tx_rings -= nn->dp.num_rx_rings; 1617 1618 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs); 1619 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs); 1620 channel->max_combined = min(channel->max_rx, channel->max_tx); 1621 channel->max_other = NFP_NET_NON_Q_VECTORS; 1622 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings); 1623 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count; 1624 channel->tx_count = num_tx_rings - channel->combined_count; 1625 channel->other_count = NFP_NET_NON_Q_VECTORS; 1626 } 1627 1628 static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx, 1629 unsigned int total_tx) 1630 { 1631 struct nfp_net_dp *dp; 1632 1633 dp = nfp_net_clone_dp(nn); 1634 if (!dp) 1635 return -ENOMEM; 1636 1637 dp->num_rx_rings = total_rx; 1638 dp->num_tx_rings = total_tx; 1639 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */ 1640 if (dp->xdp_prog) 1641 dp->num_tx_rings += total_rx; 1642 1643 return nfp_net_ring_reconfig(nn, dp, NULL); 1644 } 1645 1646 static int nfp_net_set_channels(struct net_device *netdev, 1647 struct ethtool_channels *channel) 1648 { 1649 struct nfp_net *nn = netdev_priv(netdev); 1650 unsigned int total_rx, total_tx; 1651 1652 /* Reject unsupported */ 1653 if (channel->other_count != NFP_NET_NON_Q_VECTORS || 1654 (channel->rx_count && channel->tx_count)) 1655 return -EINVAL; 1656 1657 total_rx = channel->combined_count + channel->rx_count; 1658 total_tx = channel->combined_count + channel->tx_count; 1659 1660 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) || 1661 total_tx > min(nn->max_tx_rings, nn->max_r_vecs)) 1662 return -EINVAL; 1663 1664 return nfp_net_set_num_rings(nn, total_rx, total_tx); 1665 } 1666 1667 static void nfp_port_get_pauseparam(struct net_device *netdev, 1668 struct ethtool_pauseparam *pause) 1669 { 1670 struct nfp_eth_table_port *eth_port; 1671 struct nfp_port *port; 1672 1673 port = nfp_port_from_netdev(netdev); 1674 eth_port = nfp_port_get_eth_port(port); 1675 if (!eth_port) 1676 return; 1677 1678 /* Currently pause frame support is fixed */ 1679 pause->autoneg = AUTONEG_DISABLE; 1680 pause->rx_pause = 1; 1681 pause->tx_pause = 1; 1682 } 1683 1684 static int nfp_net_set_phys_id(struct net_device *netdev, 1685 enum ethtool_phys_id_state state) 1686 { 1687 struct nfp_eth_table_port *eth_port; 1688 struct nfp_port *port; 1689 int err; 1690 1691 port = nfp_port_from_netdev(netdev); 1692 eth_port = __nfp_port_get_eth_port(port); 1693 if (!eth_port) 1694 return -EOPNOTSUPP; 1695 1696 switch (state) { 1697 case ETHTOOL_ID_ACTIVE: 1698 /* Control LED to blink */ 1699 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 1); 1700 break; 1701 1702 case ETHTOOL_ID_INACTIVE: 1703 /* Control LED to normal mode */ 1704 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 0); 1705 break; 1706 1707 case ETHTOOL_ID_ON: 1708 case ETHTOOL_ID_OFF: 1709 default: 1710 return -EOPNOTSUPP; 1711 } 1712 1713 return err; 1714 } 1715 1716 #define NFP_EEPROM_LEN ETH_ALEN 1717 1718 static int 1719 nfp_net_get_eeprom_len(struct net_device *netdev) 1720 { 1721 struct nfp_eth_table_port *eth_port; 1722 struct nfp_port *port; 1723 1724 port = nfp_port_from_netdev(netdev); 1725 eth_port = __nfp_port_get_eth_port(port); 1726 if (!eth_port) 1727 return 0; 1728 1729 return NFP_EEPROM_LEN; 1730 } 1731 1732 static int 1733 nfp_net_get_nsp_hwindex(struct net_device *netdev, 1734 struct nfp_nsp **nspptr, 1735 u32 *index) 1736 { 1737 struct nfp_eth_table_port *eth_port; 1738 struct nfp_port *port; 1739 struct nfp_nsp *nsp; 1740 int err; 1741 1742 port = nfp_port_from_netdev(netdev); 1743 eth_port = __nfp_port_get_eth_port(port); 1744 if (!eth_port) 1745 return -EOPNOTSUPP; 1746 1747 nsp = nfp_nsp_open(port->app->cpp); 1748 if (IS_ERR(nsp)) { 1749 err = PTR_ERR(nsp); 1750 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1751 return err; 1752 } 1753 1754 if (!nfp_nsp_has_hwinfo_lookup(nsp)) { 1755 netdev_err(netdev, "NSP doesn't support PF MAC generation\n"); 1756 nfp_nsp_close(nsp); 1757 return -EOPNOTSUPP; 1758 } 1759 1760 *nspptr = nsp; 1761 *index = eth_port->eth_index; 1762 1763 return 0; 1764 } 1765 1766 static int 1767 nfp_net_get_port_mac_by_hwinfo(struct net_device *netdev, 1768 u8 *mac_addr) 1769 { 1770 char hwinfo[32] = {}; 1771 struct nfp_nsp *nsp; 1772 u32 index; 1773 int err; 1774 1775 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 1776 if (err) 1777 return err; 1778 1779 snprintf(hwinfo, sizeof(hwinfo), "eth%u.mac", index); 1780 err = nfp_nsp_hwinfo_lookup(nsp, hwinfo, sizeof(hwinfo)); 1781 nfp_nsp_close(nsp); 1782 if (err) { 1783 netdev_err(netdev, "Reading persistent MAC address failed: %d\n", 1784 err); 1785 return -EOPNOTSUPP; 1786 } 1787 1788 if (sscanf(hwinfo, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 1789 &mac_addr[0], &mac_addr[1], &mac_addr[2], 1790 &mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) { 1791 netdev_err(netdev, "Can't parse persistent MAC address (%s)\n", 1792 hwinfo); 1793 return -EOPNOTSUPP; 1794 } 1795 1796 return 0; 1797 } 1798 1799 static int 1800 nfp_net_set_port_mac_by_hwinfo(struct net_device *netdev, 1801 u8 *mac_addr) 1802 { 1803 char hwinfo[32] = {}; 1804 struct nfp_nsp *nsp; 1805 u32 index; 1806 int err; 1807 1808 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 1809 if (err) 1810 return err; 1811 1812 snprintf(hwinfo, sizeof(hwinfo), 1813 "eth%u.mac=%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 1814 index, mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], 1815 mac_addr[4], mac_addr[5]); 1816 1817 err = nfp_nsp_hwinfo_set(nsp, hwinfo, sizeof(hwinfo)); 1818 nfp_nsp_close(nsp); 1819 if (err) { 1820 netdev_err(netdev, "HWinfo set failed: %d, hwinfo: %s\n", 1821 err, hwinfo); 1822 return -EOPNOTSUPP; 1823 } 1824 1825 return 0; 1826 } 1827 1828 static int 1829 nfp_net_get_eeprom(struct net_device *netdev, 1830 struct ethtool_eeprom *eeprom, u8 *bytes) 1831 { 1832 struct nfp_net *nn = netdev_priv(netdev); 1833 u8 buf[NFP_EEPROM_LEN] = {}; 1834 1835 if (eeprom->len == 0) 1836 return -EINVAL; 1837 1838 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 1839 return -EOPNOTSUPP; 1840 1841 eeprom->magic = nn->pdev->vendor | (nn->pdev->device << 16); 1842 memcpy(bytes, buf + eeprom->offset, eeprom->len); 1843 1844 return 0; 1845 } 1846 1847 static int 1848 nfp_net_set_eeprom(struct net_device *netdev, 1849 struct ethtool_eeprom *eeprom, u8 *bytes) 1850 { 1851 struct nfp_net *nn = netdev_priv(netdev); 1852 u8 buf[NFP_EEPROM_LEN] = {}; 1853 1854 if (eeprom->len == 0) 1855 return -EINVAL; 1856 1857 if (eeprom->magic != (nn->pdev->vendor | nn->pdev->device << 16)) 1858 return -EINVAL; 1859 1860 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 1861 return -EOPNOTSUPP; 1862 1863 memcpy(buf + eeprom->offset, bytes, eeprom->len); 1864 if (nfp_net_set_port_mac_by_hwinfo(netdev, buf)) 1865 return -EOPNOTSUPP; 1866 1867 return 0; 1868 } 1869 1870 static const struct ethtool_ops nfp_net_ethtool_ops = { 1871 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 1872 ETHTOOL_COALESCE_MAX_FRAMES | 1873 ETHTOOL_COALESCE_USE_ADAPTIVE, 1874 .get_drvinfo = nfp_net_get_drvinfo, 1875 .nway_reset = nfp_net_nway_reset, 1876 .get_link = ethtool_op_get_link, 1877 .get_ringparam = nfp_net_get_ringparam, 1878 .set_ringparam = nfp_net_set_ringparam, 1879 .self_test = nfp_net_self_test, 1880 .get_strings = nfp_net_get_strings, 1881 .get_ethtool_stats = nfp_net_get_stats, 1882 .get_sset_count = nfp_net_get_sset_count, 1883 .get_rxnfc = nfp_net_get_rxnfc, 1884 .set_rxnfc = nfp_net_set_rxnfc, 1885 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size, 1886 .get_rxfh_key_size = nfp_net_get_rxfh_key_size, 1887 .get_rxfh = nfp_net_get_rxfh, 1888 .set_rxfh = nfp_net_set_rxfh, 1889 .get_regs_len = nfp_net_get_regs_len, 1890 .get_regs = nfp_net_get_regs, 1891 .set_dump = nfp_app_set_dump, 1892 .get_dump_flag = nfp_app_get_dump_flag, 1893 .get_dump_data = nfp_app_get_dump_data, 1894 .get_eeprom_len = nfp_net_get_eeprom_len, 1895 .get_eeprom = nfp_net_get_eeprom, 1896 .set_eeprom = nfp_net_set_eeprom, 1897 .get_module_info = nfp_port_get_module_info, 1898 .get_module_eeprom = nfp_port_get_module_eeprom, 1899 .get_coalesce = nfp_net_get_coalesce, 1900 .set_coalesce = nfp_net_set_coalesce, 1901 .get_channels = nfp_net_get_channels, 1902 .set_channels = nfp_net_set_channels, 1903 .get_link_ksettings = nfp_net_get_link_ksettings, 1904 .set_link_ksettings = nfp_net_set_link_ksettings, 1905 .get_fecparam = nfp_port_get_fecparam, 1906 .set_fecparam = nfp_port_set_fecparam, 1907 .get_pauseparam = nfp_port_get_pauseparam, 1908 .set_phys_id = nfp_net_set_phys_id, 1909 }; 1910 1911 const struct ethtool_ops nfp_port_ethtool_ops = { 1912 .get_drvinfo = nfp_app_get_drvinfo, 1913 .nway_reset = nfp_net_nway_reset, 1914 .get_link = ethtool_op_get_link, 1915 .get_strings = nfp_port_get_strings, 1916 .get_ethtool_stats = nfp_port_get_stats, 1917 .self_test = nfp_net_self_test, 1918 .get_sset_count = nfp_port_get_sset_count, 1919 .set_dump = nfp_app_set_dump, 1920 .get_dump_flag = nfp_app_get_dump_flag, 1921 .get_dump_data = nfp_app_get_dump_data, 1922 .get_module_info = nfp_port_get_module_info, 1923 .get_module_eeprom = nfp_port_get_module_eeprom, 1924 .get_link_ksettings = nfp_net_get_link_ksettings, 1925 .set_link_ksettings = nfp_net_set_link_ksettings, 1926 .get_fecparam = nfp_port_get_fecparam, 1927 .set_fecparam = nfp_port_set_fecparam, 1928 .get_pauseparam = nfp_port_get_pauseparam, 1929 .set_phys_id = nfp_net_set_phys_id, 1930 }; 1931 1932 void nfp_net_set_ethtool_ops(struct net_device *netdev) 1933 { 1934 netdev->ethtool_ops = &nfp_net_ethtool_ops; 1935 } 1936