1/**************************************************************************** 2 * Driver for Solarflare network controllers and boards 3 * Copyright 2009-2013 Solarflare Communications Inc. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 as published 7 * by the Free Software Foundation, incorporated herein by reference. 8 */ 9 10/* 11 * Driver for PHY related operations via MCDI. 12 */ 13 14#include <linux/slab.h> 15#include "efx.h" 16#include "phy.h" 17#include "mcdi.h" 18#include "mcdi_pcol.h" 19#include "nic.h" 20#include "selftest.h" 21 22struct efx_mcdi_phy_data { 23 u32 flags; 24 u32 type; 25 u32 supported_cap; 26 u32 channel; 27 u32 port; 28 u32 stats_mask; 29 u8 name[20]; 30 u32 media; 31 u32 mmd_mask; 32 u8 revision[20]; 33 u32 forced_cap; 34}; 35 36static int 37efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg) 38{ 39 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_CFG_OUT_LEN); 40 size_t outlen; 41 int rc; 42 43 BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0); 44 BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name)); 45 46 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0, 47 outbuf, sizeof(outbuf), &outlen); 48 if (rc) 49 goto fail; 50 51 if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) { 52 rc = -EIO; 53 goto fail; 54 } 55 56 cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS); 57 cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE); 58 cfg->supported_cap = 59 MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP); 60 cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL); 61 cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT); 62 cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK); 63 memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME), 64 sizeof(cfg->name)); 65 cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE); 66 cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK); 67 memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION), 68 sizeof(cfg->revision)); 69 70 return 0; 71 72fail: 73 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); 74 return rc; 75} 76 77static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities, 78 u32 flags, u32 loopback_mode, 79 u32 loopback_speed) 80{ 81 MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_LINK_IN_LEN); 82 int rc; 83 84 BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0); 85 86 MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities); 87 MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags); 88 MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode); 89 MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed); 90 91 rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf), 92 NULL, 0, NULL); 93 return rc; 94} 95 96static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes) 97{ 98 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LOOPBACK_MODES_OUT_LEN); 99 size_t outlen; 100 int rc; 101 102 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0, 103 outbuf, sizeof(outbuf), &outlen); 104 if (rc) 105 goto fail; 106 107 if (outlen < (MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_OFST + 108 MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_LEN)) { 109 rc = -EIO; 110 goto fail; 111 } 112 113 *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_OUT_SUGGESTED); 114 115 return 0; 116 117fail: 118 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); 119 return rc; 120} 121 122static int efx_mcdi_mdio_read(struct net_device *net_dev, 123 int prtad, int devad, u16 addr) 124{ 125 struct efx_nic *efx = netdev_priv(net_dev); 126 MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN); 127 MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN); 128 size_t outlen; 129 int rc; 130 131 MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, efx->mdio_bus); 132 MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad); 133 MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad); 134 MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr); 135 136 rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf), 137 outbuf, sizeof(outbuf), &outlen); 138 if (rc) 139 return rc; 140 141 if (MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS) != 142 MC_CMD_MDIO_STATUS_GOOD) 143 return -EIO; 144 145 return (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE); 146} 147 148static int efx_mcdi_mdio_write(struct net_device *net_dev, 149 int prtad, int devad, u16 addr, u16 value) 150{ 151 struct efx_nic *efx = netdev_priv(net_dev); 152 MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_WRITE_IN_LEN); 153 MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_WRITE_OUT_LEN); 154 size_t outlen; 155 int rc; 156 157 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, efx->mdio_bus); 158 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad); 159 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad); 160 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr); 161 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value); 162 163 rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf), 164 outbuf, sizeof(outbuf), &outlen); 165 if (rc) 166 return rc; 167 168 if (MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS) != 169 MC_CMD_MDIO_STATUS_GOOD) 170 return -EIO; 171 172 return 0; 173} 174 175static u32 mcdi_to_ethtool_cap(u32 media, u32 cap) 176{ 177 u32 result = 0; 178 179 switch (media) { 180 case MC_CMD_MEDIA_KX4: 181 result |= SUPPORTED_Backplane; 182 if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) 183 result |= SUPPORTED_1000baseKX_Full; 184 if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) 185 result |= SUPPORTED_10000baseKX4_Full; 186 if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) 187 result |= SUPPORTED_40000baseKR4_Full; 188 break; 189 190 case MC_CMD_MEDIA_XFP: 191 case MC_CMD_MEDIA_SFP_PLUS: 192 result |= SUPPORTED_FIBRE; 193 break; 194 195 case MC_CMD_MEDIA_QSFP_PLUS: 196 result |= SUPPORTED_FIBRE; 197 if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) 198 result |= SUPPORTED_40000baseCR4_Full; 199 break; 200 201 case MC_CMD_MEDIA_BASE_T: 202 result |= SUPPORTED_TP; 203 if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN)) 204 result |= SUPPORTED_10baseT_Half; 205 if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN)) 206 result |= SUPPORTED_10baseT_Full; 207 if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN)) 208 result |= SUPPORTED_100baseT_Half; 209 if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN)) 210 result |= SUPPORTED_100baseT_Full; 211 if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN)) 212 result |= SUPPORTED_1000baseT_Half; 213 if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) 214 result |= SUPPORTED_1000baseT_Full; 215 if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) 216 result |= SUPPORTED_10000baseT_Full; 217 break; 218 } 219 220 if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) 221 result |= SUPPORTED_Pause; 222 if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) 223 result |= SUPPORTED_Asym_Pause; 224 if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) 225 result |= SUPPORTED_Autoneg; 226 227 return result; 228} 229 230static u32 ethtool_to_mcdi_cap(u32 cap) 231{ 232 u32 result = 0; 233 234 if (cap & SUPPORTED_10baseT_Half) 235 result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN); 236 if (cap & SUPPORTED_10baseT_Full) 237 result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN); 238 if (cap & SUPPORTED_100baseT_Half) 239 result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN); 240 if (cap & SUPPORTED_100baseT_Full) 241 result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN); 242 if (cap & SUPPORTED_1000baseT_Half) 243 result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN); 244 if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full)) 245 result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN); 246 if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full)) 247 result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN); 248 if (cap & (SUPPORTED_40000baseCR4_Full | SUPPORTED_40000baseKR4_Full)) 249 result |= (1 << MC_CMD_PHY_CAP_40000FDX_LBN); 250 if (cap & SUPPORTED_Pause) 251 result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN); 252 if (cap & SUPPORTED_Asym_Pause) 253 result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN); 254 if (cap & SUPPORTED_Autoneg) 255 result |= (1 << MC_CMD_PHY_CAP_AN_LBN); 256 257 return result; 258} 259 260static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx) 261{ 262 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 263 enum efx_phy_mode mode, supported; 264 u32 flags; 265 266 /* TODO: Advertise the capabilities supported by this PHY */ 267 supported = 0; 268 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN)) 269 supported |= PHY_MODE_TX_DISABLED; 270 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN)) 271 supported |= PHY_MODE_LOW_POWER; 272 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN)) 273 supported |= PHY_MODE_OFF; 274 275 mode = efx->phy_mode & supported; 276 277 flags = 0; 278 if (mode & PHY_MODE_TX_DISABLED) 279 flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN); 280 if (mode & PHY_MODE_LOW_POWER) 281 flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN); 282 if (mode & PHY_MODE_OFF) 283 flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN); 284 285 return flags; 286} 287 288static u32 mcdi_to_ethtool_media(u32 media) 289{ 290 switch (media) { 291 case MC_CMD_MEDIA_XAUI: 292 case MC_CMD_MEDIA_CX4: 293 case MC_CMD_MEDIA_KX4: 294 return PORT_OTHER; 295 296 case MC_CMD_MEDIA_XFP: 297 case MC_CMD_MEDIA_SFP_PLUS: 298 case MC_CMD_MEDIA_QSFP_PLUS: 299 return PORT_FIBRE; 300 301 case MC_CMD_MEDIA_BASE_T: 302 return PORT_TP; 303 304 default: 305 return PORT_OTHER; 306 } 307} 308 309static void efx_mcdi_phy_decode_link(struct efx_nic *efx, 310 struct efx_link_state *link_state, 311 u32 speed, u32 flags, u32 fcntl) 312{ 313 switch (fcntl) { 314 case MC_CMD_FCNTL_AUTO: 315 WARN_ON(1); /* This is not a link mode */ 316 link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX; 317 break; 318 case MC_CMD_FCNTL_BIDIR: 319 link_state->fc = EFX_FC_TX | EFX_FC_RX; 320 break; 321 case MC_CMD_FCNTL_RESPOND: 322 link_state->fc = EFX_FC_RX; 323 break; 324 default: 325 WARN_ON(1); 326 case MC_CMD_FCNTL_OFF: 327 link_state->fc = 0; 328 break; 329 } 330 331 link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN)); 332 link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN)); 333 link_state->speed = speed; 334} 335 336static int efx_mcdi_phy_probe(struct efx_nic *efx) 337{ 338 struct efx_mcdi_phy_data *phy_data; 339 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); 340 u32 caps; 341 int rc; 342 343 /* Initialise and populate phy_data */ 344 phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL); 345 if (phy_data == NULL) 346 return -ENOMEM; 347 348 rc = efx_mcdi_get_phy_cfg(efx, phy_data); 349 if (rc != 0) 350 goto fail; 351 352 /* Read initial link advertisement */ 353 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); 354 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, 355 outbuf, sizeof(outbuf), NULL); 356 if (rc) 357 goto fail; 358 359 /* Fill out nic state */ 360 efx->phy_data = phy_data; 361 efx->phy_type = phy_data->type; 362 363 efx->mdio_bus = phy_data->channel; 364 efx->mdio.prtad = phy_data->port; 365 efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22); 366 efx->mdio.mode_support = 0; 367 if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22)) 368 efx->mdio.mode_support |= MDIO_SUPPORTS_C22; 369 if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22)) 370 efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; 371 372 caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP); 373 if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN)) 374 efx->link_advertising = 375 mcdi_to_ethtool_cap(phy_data->media, caps); 376 else 377 phy_data->forced_cap = caps; 378 379 /* Assert that we can map efx -> mcdi loopback modes */ 380 BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE); 381 BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA); 382 BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC); 383 BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII); 384 BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS); 385 BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI); 386 BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII); 387 BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII); 388 BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR); 389 BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI); 390 BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR); 391 BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR); 392 BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR); 393 BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR); 394 BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY); 395 BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS); 396 BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS); 397 BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD); 398 BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT); 399 BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS); 400 BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS); 401 BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR); 402 BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR); 403 BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS); 404 BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS); 405 BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR); 406 BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS); 407 408 rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes); 409 if (rc != 0) 410 goto fail; 411 /* The MC indicates that LOOPBACK_NONE is a valid loopback mode, 412 * but by convention we don't */ 413 efx->loopback_modes &= ~(1 << LOOPBACK_NONE); 414 415 /* Set the initial link mode */ 416 efx_mcdi_phy_decode_link( 417 efx, &efx->link_state, 418 MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), 419 MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), 420 MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); 421 422 /* Default to Autonegotiated flow control if the PHY supports it */ 423 efx->wanted_fc = EFX_FC_RX | EFX_FC_TX; 424 if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) 425 efx->wanted_fc |= EFX_FC_AUTO; 426 efx_link_set_wanted_fc(efx, efx->wanted_fc); 427 428 return 0; 429 430fail: 431 kfree(phy_data); 432 return rc; 433} 434 435int efx_mcdi_port_reconfigure(struct efx_nic *efx) 436{ 437 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 438 u32 caps = (efx->link_advertising ? 439 ethtool_to_mcdi_cap(efx->link_advertising) : 440 phy_cfg->forced_cap); 441 442 return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), 443 efx->loopback_mode, 0); 444} 445 446/* Verify that the forced flow control settings (!EFX_FC_AUTO) are 447 * supported by the link partner. Warn the user if this isn't the case 448 */ 449static void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa) 450{ 451 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 452 u32 rmtadv; 453 454 /* The link partner capabilities are only relevant if the 455 * link supports flow control autonegotiation */ 456 if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) 457 return; 458 459 /* If flow control autoneg is supported and enabled, then fine */ 460 if (efx->wanted_fc & EFX_FC_AUTO) 461 return; 462 463 rmtadv = 0; 464 if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) 465 rmtadv |= ADVERTISED_Pause; 466 if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) 467 rmtadv |= ADVERTISED_Asym_Pause; 468 469 if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause) 470 netif_err(efx, link, efx->net_dev, 471 "warning: link partner doesn't support pause frames"); 472} 473 474static bool efx_mcdi_phy_poll(struct efx_nic *efx) 475{ 476 struct efx_link_state old_state = efx->link_state; 477 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); 478 int rc; 479 480 WARN_ON(!mutex_is_locked(&efx->mac_lock)); 481 482 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); 483 484 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, 485 outbuf, sizeof(outbuf), NULL); 486 if (rc) 487 efx->link_state.up = false; 488 else 489 efx_mcdi_phy_decode_link( 490 efx, &efx->link_state, 491 MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), 492 MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), 493 MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); 494 495 return !efx_link_state_equal(&efx->link_state, &old_state); 496} 497 498static void efx_mcdi_phy_remove(struct efx_nic *efx) 499{ 500 struct efx_mcdi_phy_data *phy_data = efx->phy_data; 501 502 efx->phy_data = NULL; 503 kfree(phy_data); 504} 505 506static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) 507{ 508 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 509 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); 510 int rc; 511 512 ecmd->supported = 513 mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap); 514 ecmd->advertising = efx->link_advertising; 515 ethtool_cmd_speed_set(ecmd, efx->link_state.speed); 516 ecmd->duplex = efx->link_state.fd; 517 ecmd->port = mcdi_to_ethtool_media(phy_cfg->media); 518 ecmd->phy_address = phy_cfg->port; 519 ecmd->transceiver = XCVR_INTERNAL; 520 ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg); 521 ecmd->mdio_support = (efx->mdio.mode_support & 522 (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22)); 523 524 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); 525 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, 526 outbuf, sizeof(outbuf), NULL); 527 if (rc) 528 return; 529 ecmd->lp_advertising = 530 mcdi_to_ethtool_cap(phy_cfg->media, 531 MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP)); 532} 533 534static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) 535{ 536 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 537 u32 caps; 538 int rc; 539 540 if (ecmd->autoneg) { 541 caps = (ethtool_to_mcdi_cap(ecmd->advertising) | 542 1 << MC_CMD_PHY_CAP_AN_LBN); 543 } else if (ecmd->duplex) { 544 switch (ethtool_cmd_speed(ecmd)) { 545 case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break; 546 case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break; 547 case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break; 548 case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break; 549 case 40000: caps = 1 << MC_CMD_PHY_CAP_40000FDX_LBN; break; 550 default: return -EINVAL; 551 } 552 } else { 553 switch (ethtool_cmd_speed(ecmd)) { 554 case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break; 555 case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break; 556 case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break; 557 default: return -EINVAL; 558 } 559 } 560 561 rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), 562 efx->loopback_mode, 0); 563 if (rc) 564 return rc; 565 566 if (ecmd->autoneg) { 567 efx_link_set_advertising( 568 efx, ecmd->advertising | ADVERTISED_Autoneg); 569 phy_cfg->forced_cap = 0; 570 } else { 571 efx_link_set_advertising(efx, 0); 572 phy_cfg->forced_cap = caps; 573 } 574 return 0; 575} 576 577static int efx_mcdi_phy_test_alive(struct efx_nic *efx) 578{ 579 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_STATE_OUT_LEN); 580 size_t outlen; 581 int rc; 582 583 BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0); 584 585 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0, 586 outbuf, sizeof(outbuf), &outlen); 587 if (rc) 588 return rc; 589 590 if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN) 591 return -EIO; 592 if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK) 593 return -EINVAL; 594 595 return 0; 596} 597 598static const char *const mcdi_sft9001_cable_diag_names[] = { 599 "cable.pairA.length", 600 "cable.pairB.length", 601 "cable.pairC.length", 602 "cable.pairD.length", 603 "cable.pairA.status", 604 "cable.pairB.status", 605 "cable.pairC.status", 606 "cable.pairD.status", 607}; 608 609static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode, 610 int *results) 611{ 612 unsigned int retry, i, count = 0; 613 size_t outlen; 614 u32 status; 615 MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN); 616 MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN); 617 u8 *ptr; 618 int rc; 619 620 BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0); 621 MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode); 622 rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, 623 inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL); 624 if (rc) 625 goto out; 626 627 /* Wait up to 10s for BIST to finish */ 628 for (retry = 0; retry < 100; ++retry) { 629 BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0); 630 rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0, 631 outbuf, sizeof(outbuf), &outlen); 632 if (rc) 633 goto out; 634 635 status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT); 636 if (status != MC_CMD_POLL_BIST_RUNNING) 637 goto finished; 638 639 msleep(100); 640 } 641 642 rc = -ETIMEDOUT; 643 goto out; 644 645finished: 646 results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1; 647 648 /* SFT9001 specific cable diagnostics output */ 649 if (efx->phy_type == PHY_TYPE_SFT9001B && 650 (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT || 651 bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) { 652 ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A); 653 if (status == MC_CMD_POLL_BIST_PASSED && 654 outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) { 655 for (i = 0; i < 8; i++) { 656 results[count + i] = 657 EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i], 658 EFX_DWORD_0); 659 } 660 } 661 count += 8; 662 } 663 rc = count; 664 665out: 666 return rc; 667} 668 669static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results, 670 unsigned flags) 671{ 672 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 673 u32 mode; 674 int rc; 675 676 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { 677 rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results); 678 if (rc < 0) 679 return rc; 680 681 results += rc; 682 } 683 684 /* If we support both LONG and SHORT, then run each in response to 685 * break or not. Otherwise, run the one we support */ 686 mode = 0; 687 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) { 688 if ((flags & ETH_TEST_FL_OFFLINE) && 689 (phy_cfg->flags & 690 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) 691 mode = MC_CMD_PHY_BIST_CABLE_LONG; 692 else 693 mode = MC_CMD_PHY_BIST_CABLE_SHORT; 694 } else if (phy_cfg->flags & 695 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)) 696 mode = MC_CMD_PHY_BIST_CABLE_LONG; 697 698 if (mode != 0) { 699 rc = efx_mcdi_bist(efx, mode, results); 700 if (rc < 0) 701 return rc; 702 results += rc; 703 } 704 705 return 0; 706} 707 708static const char *efx_mcdi_phy_test_name(struct efx_nic *efx, 709 unsigned int index) 710{ 711 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 712 713 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { 714 if (index == 0) 715 return "bist"; 716 --index; 717 } 718 719 if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) | 720 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) { 721 if (index == 0) 722 return "cable"; 723 --index; 724 725 if (efx->phy_type == PHY_TYPE_SFT9001B) { 726 if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names)) 727 return mcdi_sft9001_cable_diag_names[index]; 728 index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names); 729 } 730 } 731 732 return NULL; 733} 734 735#define SFP_PAGE_SIZE 128 736#define SFP_NUM_PAGES 2 737static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx, 738 struct ethtool_eeprom *ee, u8 *data) 739{ 740 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX); 741 MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN); 742 size_t outlen; 743 int rc; 744 unsigned int payload_len; 745 unsigned int space_remaining = ee->len; 746 unsigned int page; 747 unsigned int page_off; 748 unsigned int to_copy; 749 u8 *user_data = data; 750 751 BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN); 752 753 page_off = ee->offset % SFP_PAGE_SIZE; 754 page = ee->offset / SFP_PAGE_SIZE; 755 756 while (space_remaining && (page < SFP_NUM_PAGES)) { 757 MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page); 758 759 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO, 760 inbuf, sizeof(inbuf), 761 outbuf, sizeof(outbuf), 762 &outlen); 763 if (rc) 764 return rc; 765 766 if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST + 767 SFP_PAGE_SIZE)) 768 return -EIO; 769 770 payload_len = MCDI_DWORD(outbuf, 771 GET_PHY_MEDIA_INFO_OUT_DATALEN); 772 if (payload_len != SFP_PAGE_SIZE) 773 return -EIO; 774 775 /* Copy as much as we can into data */ 776 payload_len -= page_off; 777 to_copy = (space_remaining < payload_len) ? 778 space_remaining : payload_len; 779 780 memcpy(user_data, 781 MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + page_off, 782 to_copy); 783 784 space_remaining -= to_copy; 785 user_data += to_copy; 786 page_off = 0; 787 page++; 788 } 789 790 return 0; 791} 792 793static int efx_mcdi_phy_get_module_info(struct efx_nic *efx, 794 struct ethtool_modinfo *modinfo) 795{ 796 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 797 798 switch (phy_cfg->media) { 799 case MC_CMD_MEDIA_SFP_PLUS: 800 modinfo->type = ETH_MODULE_SFF_8079; 801 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 802 return 0; 803 default: 804 return -EOPNOTSUPP; 805 } 806} 807 808static const struct efx_phy_operations efx_mcdi_phy_ops = { 809 .probe = efx_mcdi_phy_probe, 810 .init = efx_port_dummy_op_int, 811 .reconfigure = efx_mcdi_port_reconfigure, 812 .poll = efx_mcdi_phy_poll, 813 .fini = efx_port_dummy_op_void, 814 .remove = efx_mcdi_phy_remove, 815 .get_settings = efx_mcdi_phy_get_settings, 816 .set_settings = efx_mcdi_phy_set_settings, 817 .test_alive = efx_mcdi_phy_test_alive, 818 .run_tests = efx_mcdi_phy_run_tests, 819 .test_name = efx_mcdi_phy_test_name, 820 .get_module_eeprom = efx_mcdi_phy_get_module_eeprom, 821 .get_module_info = efx_mcdi_phy_get_module_info, 822}; 823 824u32 efx_mcdi_phy_get_caps(struct efx_nic *efx) 825{ 826 struct efx_mcdi_phy_data *phy_data = efx->phy_data; 827 828 return phy_data->supported_cap; 829} 830 831static unsigned int efx_mcdi_event_link_speed[] = { 832 [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, 833 [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, 834 [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, 835 [MCDI_EVENT_LINKCHANGE_SPEED_40G] = 40000, 836}; 837 838void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) 839{ 840 u32 flags, fcntl, speed, lpa; 841 842 speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); 843 EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); 844 speed = efx_mcdi_event_link_speed[speed]; 845 846 flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); 847 fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); 848 lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); 849 850 /* efx->link_state is only modified by efx_mcdi_phy_get_link(), 851 * which is only run after flushing the event queues. Therefore, it 852 * is safe to modify the link state outside of the mac_lock here. 853 */ 854 efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); 855 856 efx_mcdi_phy_check_fcntl(efx, lpa); 857 858 efx_link_status_changed(efx); 859} 860 861int efx_mcdi_set_mac(struct efx_nic *efx) 862{ 863 u32 fcntl; 864 MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN); 865 866 BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0); 867 868 /* This has no effect on EF10 */ 869 ether_addr_copy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR), 870 efx->net_dev->dev_addr); 871 872 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, 873 EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); 874 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); 875 876 /* Set simple MAC filter for Siena */ 877 MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_REJECT, 878 SET_MAC_IN_REJECT_UNCST, efx->unicast_filter); 879 880 switch (efx->wanted_fc) { 881 case EFX_FC_RX | EFX_FC_TX: 882 fcntl = MC_CMD_FCNTL_BIDIR; 883 break; 884 case EFX_FC_RX: 885 fcntl = MC_CMD_FCNTL_RESPOND; 886 break; 887 default: 888 fcntl = MC_CMD_FCNTL_OFF; 889 break; 890 } 891 if (efx->wanted_fc & EFX_FC_AUTO) 892 fcntl = MC_CMD_FCNTL_AUTO; 893 if (efx->fc_disable) 894 fcntl = MC_CMD_FCNTL_OFF; 895 896 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl); 897 898 return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes), 899 NULL, 0, NULL); 900} 901 902bool efx_mcdi_mac_check_fault(struct efx_nic *efx) 903{ 904 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); 905 size_t outlength; 906 int rc; 907 908 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); 909 910 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, 911 outbuf, sizeof(outbuf), &outlength); 912 if (rc) 913 return true; 914 915 return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0; 916} 917 918enum efx_stats_action { 919 EFX_STATS_ENABLE, 920 EFX_STATS_DISABLE, 921 EFX_STATS_PULL, 922}; 923 924static int efx_mcdi_mac_stats(struct efx_nic *efx, 925 enum efx_stats_action action, int clear) 926{ 927 struct efx_ef10_nic_data *nic_data = efx->nic_data; 928 MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN); 929 int rc; 930 int change = action == EFX_STATS_PULL ? 0 : 1; 931 int enable = action == EFX_STATS_ENABLE ? 1 : 0; 932 int period = action == EFX_STATS_ENABLE ? 1000 : 0; 933 dma_addr_t dma_addr = efx->stats_buffer.dma_addr; 934 u32 dma_len = action != EFX_STATS_DISABLE ? 935 MC_CMD_MAC_NSTATS * sizeof(u64) : 0; 936 937 BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); 938 939 MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr); 940 MCDI_POPULATE_DWORD_7(inbuf, MAC_STATS_IN_CMD, 941 MAC_STATS_IN_DMA, !!enable, 942 MAC_STATS_IN_CLEAR, clear, 943 MAC_STATS_IN_PERIODIC_CHANGE, change, 944 MAC_STATS_IN_PERIODIC_ENABLE, enable, 945 MAC_STATS_IN_PERIODIC_CLEAR, 0, 946 MAC_STATS_IN_PERIODIC_NOEVENT, 1, 947 MAC_STATS_IN_PERIOD_MS, period); 948 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); 949 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, nic_data->vport_id); 950 951 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), 952 NULL, 0, NULL); 953 /* Expect ENOENT if DMA queues have not been set up */ 954 if (rc && (rc != -ENOENT || atomic_read(&efx->active_queues))) 955 efx_mcdi_display_error(efx, MC_CMD_MAC_STATS, sizeof(inbuf), 956 NULL, 0, rc); 957 return rc; 958} 959 960void efx_mcdi_mac_start_stats(struct efx_nic *efx) 961{ 962 __le64 *dma_stats = efx->stats_buffer.addr; 963 964 dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID; 965 966 efx_mcdi_mac_stats(efx, EFX_STATS_ENABLE, 0); 967} 968 969void efx_mcdi_mac_stop_stats(struct efx_nic *efx) 970{ 971 efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 0); 972} 973 974#define EFX_MAC_STATS_WAIT_US 100 975#define EFX_MAC_STATS_WAIT_ATTEMPTS 10 976 977void efx_mcdi_mac_pull_stats(struct efx_nic *efx) 978{ 979 __le64 *dma_stats = efx->stats_buffer.addr; 980 int attempts = EFX_MAC_STATS_WAIT_ATTEMPTS; 981 982 dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID; 983 efx_mcdi_mac_stats(efx, EFX_STATS_PULL, 0); 984 985 while (dma_stats[MC_CMD_MAC_GENERATION_END] == 986 EFX_MC_STATS_GENERATION_INVALID && 987 attempts-- != 0) 988 udelay(EFX_MAC_STATS_WAIT_US); 989} 990 991int efx_mcdi_port_probe(struct efx_nic *efx) 992{ 993 int rc; 994 995 /* Hook in PHY operations table */ 996 efx->phy_op = &efx_mcdi_phy_ops; 997 998 /* Set up MDIO structure for PHY */ 999 efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; 1000 efx->mdio.mdio_read = efx_mcdi_mdio_read; 1001 efx->mdio.mdio_write = efx_mcdi_mdio_write; 1002 1003 /* Fill out MDIO structure, loopback modes, and initial link state */ 1004 rc = efx->phy_op->probe(efx); 1005 if (rc != 0) 1006 return rc; 1007 1008 /* Allocate buffer for stats */ 1009 rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer, 1010 MC_CMD_MAC_NSTATS * sizeof(u64), GFP_KERNEL); 1011 if (rc) 1012 return rc; 1013 netif_dbg(efx, probe, efx->net_dev, 1014 "stats buffer at %llx (virt %p phys %llx)\n", 1015 (u64)efx->stats_buffer.dma_addr, 1016 efx->stats_buffer.addr, 1017 (u64)virt_to_phys(efx->stats_buffer.addr)); 1018 1019 efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 1); 1020 1021 return 0; 1022} 1023 1024void efx_mcdi_port_remove(struct efx_nic *efx) 1025{ 1026 efx->phy_op->remove(efx); 1027 efx_nic_free_buffer(efx, &efx->stats_buffer); 1028} 1029 1030/* Get physical port number (EF10 only; on Siena it is same as PF number) */ 1031int efx_mcdi_port_get_number(struct efx_nic *efx) 1032{ 1033 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN); 1034 int rc; 1035 1036 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PORT_ASSIGNMENT, NULL, 0, 1037 outbuf, sizeof(outbuf), NULL); 1038 if (rc) 1039 return rc; 1040 1041 return MCDI_DWORD(outbuf, GET_PORT_ASSIGNMENT_OUT_PORT); 1042} 1043