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 22 struct 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 36 static int 37 efx_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 72 fail: 73 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); 74 return rc; 75 } 76 77 static 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 96 static 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; 116 117 fail: 118 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); 119 return rc; 120 } 121 122 static 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 } 147 148 static 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 } 174 175 static 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 case MC_CMD_MEDIA_QSFP_PLUS: 193 result |= SUPPORTED_FIBRE; 194 if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) 195 result |= SUPPORTED_1000baseT_Full; 196 if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) 197 result |= SUPPORTED_10000baseT_Full; 198 if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) 199 result |= SUPPORTED_40000baseCR4_Full; 200 break; 201 202 case MC_CMD_MEDIA_BASE_T: 203 result |= SUPPORTED_TP; 204 if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN)) 205 result |= SUPPORTED_10baseT_Half; 206 if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN)) 207 result |= SUPPORTED_10baseT_Full; 208 if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN)) 209 result |= SUPPORTED_100baseT_Half; 210 if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN)) 211 result |= SUPPORTED_100baseT_Full; 212 if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN)) 213 result |= SUPPORTED_1000baseT_Half; 214 if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) 215 result |= SUPPORTED_1000baseT_Full; 216 if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) 217 result |= SUPPORTED_10000baseT_Full; 218 break; 219 } 220 221 if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) 222 result |= SUPPORTED_Pause; 223 if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) 224 result |= SUPPORTED_Asym_Pause; 225 if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) 226 result |= SUPPORTED_Autoneg; 227 228 return result; 229 } 230 231 static u32 ethtool_to_mcdi_cap(u32 cap) 232 { 233 u32 result = 0; 234 235 if (cap & SUPPORTED_10baseT_Half) 236 result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN); 237 if (cap & SUPPORTED_10baseT_Full) 238 result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN); 239 if (cap & SUPPORTED_100baseT_Half) 240 result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN); 241 if (cap & SUPPORTED_100baseT_Full) 242 result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN); 243 if (cap & SUPPORTED_1000baseT_Half) 244 result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN); 245 if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full)) 246 result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN); 247 if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full)) 248 result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN); 249 if (cap & (SUPPORTED_40000baseCR4_Full | SUPPORTED_40000baseKR4_Full)) 250 result |= (1 << MC_CMD_PHY_CAP_40000FDX_LBN); 251 if (cap & SUPPORTED_Pause) 252 result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN); 253 if (cap & SUPPORTED_Asym_Pause) 254 result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN); 255 if (cap & SUPPORTED_Autoneg) 256 result |= (1 << MC_CMD_PHY_CAP_AN_LBN); 257 258 return result; 259 } 260 261 static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx) 262 { 263 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 264 enum efx_phy_mode mode, supported; 265 u32 flags; 266 267 /* TODO: Advertise the capabilities supported by this PHY */ 268 supported = 0; 269 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN)) 270 supported |= PHY_MODE_TX_DISABLED; 271 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN)) 272 supported |= PHY_MODE_LOW_POWER; 273 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN)) 274 supported |= PHY_MODE_OFF; 275 276 mode = efx->phy_mode & supported; 277 278 flags = 0; 279 if (mode & PHY_MODE_TX_DISABLED) 280 flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN); 281 if (mode & PHY_MODE_LOW_POWER) 282 flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN); 283 if (mode & PHY_MODE_OFF) 284 flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN); 285 286 return flags; 287 } 288 289 static u32 mcdi_to_ethtool_media(u32 media) 290 { 291 switch (media) { 292 case MC_CMD_MEDIA_XAUI: 293 case MC_CMD_MEDIA_CX4: 294 case MC_CMD_MEDIA_KX4: 295 return PORT_OTHER; 296 297 case MC_CMD_MEDIA_XFP: 298 case MC_CMD_MEDIA_SFP_PLUS: 299 case MC_CMD_MEDIA_QSFP_PLUS: 300 return PORT_FIBRE; 301 302 case MC_CMD_MEDIA_BASE_T: 303 return PORT_TP; 304 305 default: 306 return PORT_OTHER; 307 } 308 } 309 310 static void efx_mcdi_phy_decode_link(struct efx_nic *efx, 311 struct efx_link_state *link_state, 312 u32 speed, u32 flags, u32 fcntl) 313 { 314 switch (fcntl) { 315 case MC_CMD_FCNTL_AUTO: 316 WARN_ON(1); /* This is not a link mode */ 317 link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX; 318 break; 319 case MC_CMD_FCNTL_BIDIR: 320 link_state->fc = EFX_FC_TX | EFX_FC_RX; 321 break; 322 case MC_CMD_FCNTL_RESPOND: 323 link_state->fc = EFX_FC_RX; 324 break; 325 default: 326 WARN_ON(1); 327 case MC_CMD_FCNTL_OFF: 328 link_state->fc = 0; 329 break; 330 } 331 332 link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN)); 333 link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN)); 334 link_state->speed = speed; 335 } 336 337 static int efx_mcdi_phy_probe(struct efx_nic *efx) 338 { 339 struct efx_mcdi_phy_data *phy_data; 340 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); 341 u32 caps; 342 int rc; 343 344 /* Initialise and populate phy_data */ 345 phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL); 346 if (phy_data == NULL) 347 return -ENOMEM; 348 349 rc = efx_mcdi_get_phy_cfg(efx, phy_data); 350 if (rc != 0) 351 goto fail; 352 353 /* Read initial link advertisement */ 354 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); 355 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, 356 outbuf, sizeof(outbuf), NULL); 357 if (rc) 358 goto fail; 359 360 /* Fill out nic state */ 361 efx->phy_data = phy_data; 362 efx->phy_type = phy_data->type; 363 364 efx->mdio_bus = phy_data->channel; 365 efx->mdio.prtad = phy_data->port; 366 efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22); 367 efx->mdio.mode_support = 0; 368 if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22)) 369 efx->mdio.mode_support |= MDIO_SUPPORTS_C22; 370 if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22)) 371 efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; 372 373 caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP); 374 if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN)) 375 efx->link_advertising = 376 mcdi_to_ethtool_cap(phy_data->media, caps); 377 else 378 phy_data->forced_cap = caps; 379 380 /* Assert that we can map efx -> mcdi loopback modes */ 381 BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE); 382 BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA); 383 BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC); 384 BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII); 385 BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS); 386 BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI); 387 BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII); 388 BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII); 389 BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR); 390 BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI); 391 BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR); 392 BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR); 393 BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR); 394 BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR); 395 BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY); 396 BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS); 397 BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS); 398 BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD); 399 BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT); 400 BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS); 401 BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS); 402 BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR); 403 BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR); 404 BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS); 405 BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS); 406 BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR); 407 BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS); 408 409 rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes); 410 if (rc != 0) 411 goto fail; 412 /* The MC indicates that LOOPBACK_NONE is a valid loopback mode, 413 * but by convention we don't */ 414 efx->loopback_modes &= ~(1 << LOOPBACK_NONE); 415 416 /* Set the initial link mode */ 417 efx_mcdi_phy_decode_link( 418 efx, &efx->link_state, 419 MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), 420 MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), 421 MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); 422 423 /* Default to Autonegotiated flow control if the PHY supports it */ 424 efx->wanted_fc = EFX_FC_RX | EFX_FC_TX; 425 if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) 426 efx->wanted_fc |= EFX_FC_AUTO; 427 efx_link_set_wanted_fc(efx, efx->wanted_fc); 428 429 return 0; 430 431 fail: 432 kfree(phy_data); 433 return rc; 434 } 435 436 int efx_mcdi_port_reconfigure(struct efx_nic *efx) 437 { 438 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 439 u32 caps = (efx->link_advertising ? 440 ethtool_to_mcdi_cap(efx->link_advertising) : 441 phy_cfg->forced_cap); 442 443 return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), 444 efx->loopback_mode, 0); 445 } 446 447 /* Verify that the forced flow control settings (!EFX_FC_AUTO) are 448 * supported by the link partner. Warn the user if this isn't the case 449 */ 450 static void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa) 451 { 452 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 453 u32 rmtadv; 454 455 /* The link partner capabilities are only relevant if the 456 * link supports flow control autonegotiation */ 457 if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) 458 return; 459 460 /* If flow control autoneg is supported and enabled, then fine */ 461 if (efx->wanted_fc & EFX_FC_AUTO) 462 return; 463 464 rmtadv = 0; 465 if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) 466 rmtadv |= ADVERTISED_Pause; 467 if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) 468 rmtadv |= ADVERTISED_Asym_Pause; 469 470 if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause) 471 netif_err(efx, link, efx->net_dev, 472 "warning: link partner doesn't support pause frames"); 473 } 474 475 static bool efx_mcdi_phy_poll(struct efx_nic *efx) 476 { 477 struct efx_link_state old_state = efx->link_state; 478 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); 479 int rc; 480 481 WARN_ON(!mutex_is_locked(&efx->mac_lock)); 482 483 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); 484 485 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, 486 outbuf, sizeof(outbuf), NULL); 487 if (rc) 488 efx->link_state.up = false; 489 else 490 efx_mcdi_phy_decode_link( 491 efx, &efx->link_state, 492 MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), 493 MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), 494 MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); 495 496 return !efx_link_state_equal(&efx->link_state, &old_state); 497 } 498 499 static void efx_mcdi_phy_remove(struct efx_nic *efx) 500 { 501 struct efx_mcdi_phy_data *phy_data = efx->phy_data; 502 503 efx->phy_data = NULL; 504 kfree(phy_data); 505 } 506 507 static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) 508 { 509 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 510 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); 511 int rc; 512 513 ecmd->supported = 514 mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap); 515 ecmd->advertising = efx->link_advertising; 516 ethtool_cmd_speed_set(ecmd, efx->link_state.speed); 517 ecmd->duplex = efx->link_state.fd; 518 ecmd->port = mcdi_to_ethtool_media(phy_cfg->media); 519 ecmd->phy_address = phy_cfg->port; 520 ecmd->transceiver = XCVR_INTERNAL; 521 ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg); 522 ecmd->mdio_support = (efx->mdio.mode_support & 523 (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22)); 524 525 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); 526 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, 527 outbuf, sizeof(outbuf), NULL); 528 if (rc) 529 return; 530 ecmd->lp_advertising = 531 mcdi_to_ethtool_cap(phy_cfg->media, 532 MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP)); 533 } 534 535 static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) 536 { 537 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 538 u32 caps; 539 int rc; 540 541 if (ecmd->autoneg) { 542 caps = (ethtool_to_mcdi_cap(ecmd->advertising) | 543 1 << MC_CMD_PHY_CAP_AN_LBN); 544 } else if (ecmd->duplex) { 545 switch (ethtool_cmd_speed(ecmd)) { 546 case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break; 547 case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break; 548 case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break; 549 case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break; 550 case 40000: caps = 1 << MC_CMD_PHY_CAP_40000FDX_LBN; break; 551 default: return -EINVAL; 552 } 553 } else { 554 switch (ethtool_cmd_speed(ecmd)) { 555 case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break; 556 case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break; 557 case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break; 558 default: return -EINVAL; 559 } 560 } 561 562 rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), 563 efx->loopback_mode, 0); 564 if (rc) 565 return rc; 566 567 if (ecmd->autoneg) { 568 efx_link_set_advertising( 569 efx, ecmd->advertising | ADVERTISED_Autoneg); 570 phy_cfg->forced_cap = 0; 571 } else { 572 efx_link_set_advertising(efx, 0); 573 phy_cfg->forced_cap = caps; 574 } 575 return 0; 576 } 577 578 static int efx_mcdi_phy_test_alive(struct efx_nic *efx) 579 { 580 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_STATE_OUT_LEN); 581 size_t outlen; 582 int rc; 583 584 BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0); 585 586 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0, 587 outbuf, sizeof(outbuf), &outlen); 588 if (rc) 589 return rc; 590 591 if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN) 592 return -EIO; 593 if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK) 594 return -EINVAL; 595 596 return 0; 597 } 598 599 static const char *const mcdi_sft9001_cable_diag_names[] = { 600 "cable.pairA.length", 601 "cable.pairB.length", 602 "cable.pairC.length", 603 "cable.pairD.length", 604 "cable.pairA.status", 605 "cable.pairB.status", 606 "cable.pairC.status", 607 "cable.pairD.status", 608 }; 609 610 static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode, 611 int *results) 612 { 613 unsigned int retry, i, count = 0; 614 size_t outlen; 615 u32 status; 616 MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN); 617 MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN); 618 u8 *ptr; 619 int rc; 620 621 BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0); 622 MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode); 623 rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, 624 inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL); 625 if (rc) 626 goto out; 627 628 /* Wait up to 10s for BIST to finish */ 629 for (retry = 0; retry < 100; ++retry) { 630 BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0); 631 rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0, 632 outbuf, sizeof(outbuf), &outlen); 633 if (rc) 634 goto out; 635 636 status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT); 637 if (status != MC_CMD_POLL_BIST_RUNNING) 638 goto finished; 639 640 msleep(100); 641 } 642 643 rc = -ETIMEDOUT; 644 goto out; 645 646 finished: 647 results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1; 648 649 /* SFT9001 specific cable diagnostics output */ 650 if (efx->phy_type == PHY_TYPE_SFT9001B && 651 (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT || 652 bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) { 653 ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A); 654 if (status == MC_CMD_POLL_BIST_PASSED && 655 outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) { 656 for (i = 0; i < 8; i++) { 657 results[count + i] = 658 EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i], 659 EFX_DWORD_0); 660 } 661 } 662 count += 8; 663 } 664 rc = count; 665 666 out: 667 return rc; 668 } 669 670 static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results, 671 unsigned flags) 672 { 673 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 674 u32 mode; 675 int rc; 676 677 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { 678 rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results); 679 if (rc < 0) 680 return rc; 681 682 results += rc; 683 } 684 685 /* If we support both LONG and SHORT, then run each in response to 686 * break or not. Otherwise, run the one we support */ 687 mode = 0; 688 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) { 689 if ((flags & ETH_TEST_FL_OFFLINE) && 690 (phy_cfg->flags & 691 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) 692 mode = MC_CMD_PHY_BIST_CABLE_LONG; 693 else 694 mode = MC_CMD_PHY_BIST_CABLE_SHORT; 695 } else if (phy_cfg->flags & 696 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)) 697 mode = MC_CMD_PHY_BIST_CABLE_LONG; 698 699 if (mode != 0) { 700 rc = efx_mcdi_bist(efx, mode, results); 701 if (rc < 0) 702 return rc; 703 results += rc; 704 } 705 706 return 0; 707 } 708 709 static const char *efx_mcdi_phy_test_name(struct efx_nic *efx, 710 unsigned int index) 711 { 712 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 713 714 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { 715 if (index == 0) 716 return "bist"; 717 --index; 718 } 719 720 if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) | 721 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) { 722 if (index == 0) 723 return "cable"; 724 --index; 725 726 if (efx->phy_type == PHY_TYPE_SFT9001B) { 727 if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names)) 728 return mcdi_sft9001_cable_diag_names[index]; 729 index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names); 730 } 731 } 732 733 return NULL; 734 } 735 736 #define SFP_PAGE_SIZE 128 737 #define SFP_NUM_PAGES 2 738 static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx, 739 struct ethtool_eeprom *ee, u8 *data) 740 { 741 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX); 742 MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN); 743 size_t outlen; 744 int rc; 745 unsigned int payload_len; 746 unsigned int space_remaining = ee->len; 747 unsigned int page; 748 unsigned int page_off; 749 unsigned int to_copy; 750 u8 *user_data = data; 751 752 BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN); 753 754 page_off = ee->offset % SFP_PAGE_SIZE; 755 page = ee->offset / SFP_PAGE_SIZE; 756 757 while (space_remaining && (page < SFP_NUM_PAGES)) { 758 MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page); 759 760 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO, 761 inbuf, sizeof(inbuf), 762 outbuf, sizeof(outbuf), 763 &outlen); 764 if (rc) 765 return rc; 766 767 if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST + 768 SFP_PAGE_SIZE)) 769 return -EIO; 770 771 payload_len = MCDI_DWORD(outbuf, 772 GET_PHY_MEDIA_INFO_OUT_DATALEN); 773 if (payload_len != SFP_PAGE_SIZE) 774 return -EIO; 775 776 /* Copy as much as we can into data */ 777 payload_len -= page_off; 778 to_copy = (space_remaining < payload_len) ? 779 space_remaining : payload_len; 780 781 memcpy(user_data, 782 MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + page_off, 783 to_copy); 784 785 space_remaining -= to_copy; 786 user_data += to_copy; 787 page_off = 0; 788 page++; 789 } 790 791 return 0; 792 } 793 794 static int efx_mcdi_phy_get_module_info(struct efx_nic *efx, 795 struct ethtool_modinfo *modinfo) 796 { 797 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; 798 799 switch (phy_cfg->media) { 800 case MC_CMD_MEDIA_SFP_PLUS: 801 modinfo->type = ETH_MODULE_SFF_8079; 802 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 803 return 0; 804 default: 805 return -EOPNOTSUPP; 806 } 807 } 808 809 static const struct efx_phy_operations efx_mcdi_phy_ops = { 810 .probe = efx_mcdi_phy_probe, 811 .init = efx_port_dummy_op_int, 812 .reconfigure = efx_mcdi_port_reconfigure, 813 .poll = efx_mcdi_phy_poll, 814 .fini = efx_port_dummy_op_void, 815 .remove = efx_mcdi_phy_remove, 816 .get_settings = efx_mcdi_phy_get_settings, 817 .set_settings = efx_mcdi_phy_set_settings, 818 .test_alive = efx_mcdi_phy_test_alive, 819 .run_tests = efx_mcdi_phy_run_tests, 820 .test_name = efx_mcdi_phy_test_name, 821 .get_module_eeprom = efx_mcdi_phy_get_module_eeprom, 822 .get_module_info = efx_mcdi_phy_get_module_info, 823 }; 824 825 u32 efx_mcdi_phy_get_caps(struct efx_nic *efx) 826 { 827 struct efx_mcdi_phy_data *phy_data = efx->phy_data; 828 829 return phy_data->supported_cap; 830 } 831 832 static unsigned int efx_mcdi_event_link_speed[] = { 833 [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, 834 [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, 835 [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, 836 [MCDI_EVENT_LINKCHANGE_SPEED_40G] = 40000, 837 }; 838 839 void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) 840 { 841 u32 flags, fcntl, speed, lpa; 842 843 speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); 844 EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); 845 speed = efx_mcdi_event_link_speed[speed]; 846 847 flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); 848 fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); 849 lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); 850 851 /* efx->link_state is only modified by efx_mcdi_phy_get_link(), 852 * which is only run after flushing the event queues. Therefore, it 853 * is safe to modify the link state outside of the mac_lock here. 854 */ 855 efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); 856 857 efx_mcdi_phy_check_fcntl(efx, lpa); 858 859 efx_link_status_changed(efx); 860 } 861 862 int efx_mcdi_set_mac(struct efx_nic *efx) 863 { 864 u32 fcntl; 865 MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN); 866 867 BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0); 868 869 /* This has no effect on EF10 */ 870 ether_addr_copy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR), 871 efx->net_dev->dev_addr); 872 873 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, 874 EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); 875 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); 876 877 /* Set simple MAC filter for Siena */ 878 MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_REJECT, 879 SET_MAC_IN_REJECT_UNCST, efx->unicast_filter); 880 881 switch (efx->wanted_fc) { 882 case EFX_FC_RX | EFX_FC_TX: 883 fcntl = MC_CMD_FCNTL_BIDIR; 884 break; 885 case EFX_FC_RX: 886 fcntl = MC_CMD_FCNTL_RESPOND; 887 break; 888 default: 889 fcntl = MC_CMD_FCNTL_OFF; 890 break; 891 } 892 if (efx->wanted_fc & EFX_FC_AUTO) 893 fcntl = MC_CMD_FCNTL_AUTO; 894 if (efx->fc_disable) 895 fcntl = MC_CMD_FCNTL_OFF; 896 897 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl); 898 899 return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes), 900 NULL, 0, NULL); 901 } 902 903 bool efx_mcdi_mac_check_fault(struct efx_nic *efx) 904 { 905 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); 906 size_t outlength; 907 int rc; 908 909 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); 910 911 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, 912 outbuf, sizeof(outbuf), &outlength); 913 if (rc) 914 return true; 915 916 return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0; 917 } 918 919 enum efx_stats_action { 920 EFX_STATS_ENABLE, 921 EFX_STATS_DISABLE, 922 EFX_STATS_PULL, 923 }; 924 925 static int efx_mcdi_mac_stats(struct efx_nic *efx, 926 enum efx_stats_action action, int clear) 927 { 928 struct efx_ef10_nic_data *nic_data = efx->nic_data; 929 MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN); 930 int rc; 931 int change = action == EFX_STATS_PULL ? 0 : 1; 932 int enable = action == EFX_STATS_ENABLE ? 1 : 0; 933 int period = action == EFX_STATS_ENABLE ? 1000 : 0; 934 dma_addr_t dma_addr = efx->stats_buffer.dma_addr; 935 u32 dma_len = action != EFX_STATS_DISABLE ? 936 MC_CMD_MAC_NSTATS * sizeof(u64) : 0; 937 938 BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); 939 940 MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr); 941 MCDI_POPULATE_DWORD_7(inbuf, MAC_STATS_IN_CMD, 942 MAC_STATS_IN_DMA, !!enable, 943 MAC_STATS_IN_CLEAR, clear, 944 MAC_STATS_IN_PERIODIC_CHANGE, change, 945 MAC_STATS_IN_PERIODIC_ENABLE, enable, 946 MAC_STATS_IN_PERIODIC_CLEAR, 0, 947 MAC_STATS_IN_PERIODIC_NOEVENT, 1, 948 MAC_STATS_IN_PERIOD_MS, period); 949 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); 950 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, nic_data->vport_id); 951 952 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), 953 NULL, 0, NULL); 954 /* Expect ENOENT if DMA queues have not been set up */ 955 if (rc && (rc != -ENOENT || atomic_read(&efx->active_queues))) 956 efx_mcdi_display_error(efx, MC_CMD_MAC_STATS, sizeof(inbuf), 957 NULL, 0, rc); 958 return rc; 959 } 960 961 void efx_mcdi_mac_start_stats(struct efx_nic *efx) 962 { 963 __le64 *dma_stats = efx->stats_buffer.addr; 964 965 dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID; 966 967 efx_mcdi_mac_stats(efx, EFX_STATS_ENABLE, 0); 968 } 969 970 void efx_mcdi_mac_stop_stats(struct efx_nic *efx) 971 { 972 efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 0); 973 } 974 975 #define EFX_MAC_STATS_WAIT_US 100 976 #define EFX_MAC_STATS_WAIT_ATTEMPTS 10 977 978 void efx_mcdi_mac_pull_stats(struct efx_nic *efx) 979 { 980 __le64 *dma_stats = efx->stats_buffer.addr; 981 int attempts = EFX_MAC_STATS_WAIT_ATTEMPTS; 982 983 dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID; 984 efx_mcdi_mac_stats(efx, EFX_STATS_PULL, 0); 985 986 while (dma_stats[MC_CMD_MAC_GENERATION_END] == 987 EFX_MC_STATS_GENERATION_INVALID && 988 attempts-- != 0) 989 udelay(EFX_MAC_STATS_WAIT_US); 990 } 991 992 int efx_mcdi_port_probe(struct efx_nic *efx) 993 { 994 int rc; 995 996 /* Hook in PHY operations table */ 997 efx->phy_op = &efx_mcdi_phy_ops; 998 999 /* Set up MDIO structure for PHY */ 1000 efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; 1001 efx->mdio.mdio_read = efx_mcdi_mdio_read; 1002 efx->mdio.mdio_write = efx_mcdi_mdio_write; 1003 1004 /* Fill out MDIO structure, loopback modes, and initial link state */ 1005 rc = efx->phy_op->probe(efx); 1006 if (rc != 0) 1007 return rc; 1008 1009 /* Allocate buffer for stats */ 1010 rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer, 1011 MC_CMD_MAC_NSTATS * sizeof(u64), GFP_KERNEL); 1012 if (rc) 1013 return rc; 1014 netif_dbg(efx, probe, efx->net_dev, 1015 "stats buffer at %llx (virt %p phys %llx)\n", 1016 (u64)efx->stats_buffer.dma_addr, 1017 efx->stats_buffer.addr, 1018 (u64)virt_to_phys(efx->stats_buffer.addr)); 1019 1020 efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 1); 1021 1022 return 0; 1023 } 1024 1025 void efx_mcdi_port_remove(struct efx_nic *efx) 1026 { 1027 efx->phy_op->remove(efx); 1028 efx_nic_free_buffer(efx, &efx->stats_buffer); 1029 } 1030 1031 /* Get physical port number (EF10 only; on Siena it is same as PF number) */ 1032 int efx_mcdi_port_get_number(struct efx_nic *efx) 1033 { 1034 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN); 1035 int rc; 1036 1037 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PORT_ASSIGNMENT, NULL, 0, 1038 outbuf, sizeof(outbuf), NULL); 1039 if (rc) 1040 return rc; 1041 1042 return MCDI_DWORD(outbuf, GET_PORT_ASSIGNMENT_OUT_PORT); 1043 } 1044