1// SPDX-License-Identifier: GPL-2.0-only 2/**************************************************************************** 3 * Driver for Solarflare network controllers and boards 4 * Copyright 2015 Solarflare Communications Inc. 5 */ 6#include <linux/etherdevice.h> 7#include <linux/pci.h> 8#include <linux/module.h> 9#include "net_driver.h" 10#include "ef10_sriov.h" 11#include "efx.h" 12#include "nic.h" 13#include "mcdi_pcol.h" 14 15static int efx_ef10_evb_port_assign(struct efx_nic *efx, unsigned int port_id, 16 unsigned int vf_fn) 17{ 18 MCDI_DECLARE_BUF(inbuf, MC_CMD_EVB_PORT_ASSIGN_IN_LEN); 19 struct efx_ef10_nic_data *nic_data = efx->nic_data; 20 21 MCDI_SET_DWORD(inbuf, EVB_PORT_ASSIGN_IN_PORT_ID, port_id); 22 MCDI_POPULATE_DWORD_2(inbuf, EVB_PORT_ASSIGN_IN_FUNCTION, 23 EVB_PORT_ASSIGN_IN_PF, nic_data->pf_index, 24 EVB_PORT_ASSIGN_IN_VF, vf_fn); 25 26 return efx_mcdi_rpc(efx, MC_CMD_EVB_PORT_ASSIGN, inbuf, sizeof(inbuf), 27 NULL, 0, NULL); 28} 29 30static int efx_ef10_vswitch_alloc(struct efx_nic *efx, unsigned int port_id, 31 unsigned int vswitch_type) 32{ 33 MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_ALLOC_IN_LEN); 34 int rc; 35 36 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_UPSTREAM_PORT_ID, port_id); 37 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_TYPE, vswitch_type); 38 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 2); 39 MCDI_POPULATE_DWORD_1(inbuf, VSWITCH_ALLOC_IN_FLAGS, 40 VSWITCH_ALLOC_IN_FLAG_AUTO_PORT, 0); 41 42 /* Quietly try to allocate 2 VLAN tags */ 43 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_VSWITCH_ALLOC, inbuf, sizeof(inbuf), 44 NULL, 0, NULL); 45 46 /* If 2 VLAN tags is too many, revert to trying with 1 VLAN tags */ 47 if (rc == -EPROTO) { 48 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 1); 49 rc = efx_mcdi_rpc(efx, MC_CMD_VSWITCH_ALLOC, inbuf, 50 sizeof(inbuf), NULL, 0, NULL); 51 } else if (rc) { 52 efx_mcdi_display_error(efx, MC_CMD_VSWITCH_ALLOC, 53 MC_CMD_VSWITCH_ALLOC_IN_LEN, 54 NULL, 0, rc); 55 } 56 return rc; 57} 58 59static int efx_ef10_vswitch_free(struct efx_nic *efx, unsigned int port_id) 60{ 61 MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_FREE_IN_LEN); 62 63 MCDI_SET_DWORD(inbuf, VSWITCH_FREE_IN_UPSTREAM_PORT_ID, port_id); 64 65 return efx_mcdi_rpc(efx, MC_CMD_VSWITCH_FREE, inbuf, sizeof(inbuf), 66 NULL, 0, NULL); 67} 68 69static int efx_ef10_vport_alloc(struct efx_nic *efx, 70 unsigned int port_id_in, 71 unsigned int vport_type, 72 u16 vlan, 73 unsigned int *port_id_out) 74{ 75 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_ALLOC_IN_LEN); 76 MCDI_DECLARE_BUF(outbuf, MC_CMD_VPORT_ALLOC_OUT_LEN); 77 size_t outlen; 78 int rc; 79 80 EFX_WARN_ON_PARANOID(!port_id_out); 81 82 MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_UPSTREAM_PORT_ID, port_id_in); 83 MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_TYPE, vport_type); 84 MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_NUM_VLAN_TAGS, 85 (vlan != EFX_EF10_NO_VLAN)); 86 MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_FLAGS, 87 VPORT_ALLOC_IN_FLAG_AUTO_PORT, 0); 88 if (vlan != EFX_EF10_NO_VLAN) 89 MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_VLAN_TAGS, 90 VPORT_ALLOC_IN_VLAN_TAG_0, vlan); 91 92 rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_ALLOC, inbuf, sizeof(inbuf), 93 outbuf, sizeof(outbuf), &outlen); 94 if (rc) 95 return rc; 96 if (outlen < MC_CMD_VPORT_ALLOC_OUT_LEN) 97 return -EIO; 98 99 *port_id_out = MCDI_DWORD(outbuf, VPORT_ALLOC_OUT_VPORT_ID); 100 return 0; 101} 102 103static int efx_ef10_vport_free(struct efx_nic *efx, unsigned int port_id) 104{ 105 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_FREE_IN_LEN); 106 107 MCDI_SET_DWORD(inbuf, VPORT_FREE_IN_VPORT_ID, port_id); 108 109 return efx_mcdi_rpc(efx, MC_CMD_VPORT_FREE, inbuf, sizeof(inbuf), 110 NULL, 0, NULL); 111} 112 113static void efx_ef10_sriov_free_vf_vports(struct efx_nic *efx) 114{ 115 struct efx_ef10_nic_data *nic_data = efx->nic_data; 116 int i; 117 118 if (!nic_data->vf) 119 return; 120 121 for (i = 0; i < efx->vf_count; i++) { 122 struct ef10_vf *vf = nic_data->vf + i; 123 124 /* If VF is assigned, do not free the vport */ 125 if (vf->pci_dev && 126 vf->pci_dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) 127 continue; 128 129 if (vf->vport_assigned) { 130 efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, i); 131 vf->vport_assigned = 0; 132 } 133 134 if (!is_zero_ether_addr(vf->mac)) { 135 efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac); 136 eth_zero_addr(vf->mac); 137 } 138 139 if (vf->vport_id) { 140 efx_ef10_vport_free(efx, vf->vport_id); 141 vf->vport_id = 0; 142 } 143 144 vf->efx = NULL; 145 } 146} 147 148static void efx_ef10_sriov_free_vf_vswitching(struct efx_nic *efx) 149{ 150 struct efx_ef10_nic_data *nic_data = efx->nic_data; 151 152 efx_ef10_sriov_free_vf_vports(efx); 153 kfree(nic_data->vf); 154 nic_data->vf = NULL; 155} 156 157static int efx_ef10_sriov_assign_vf_vport(struct efx_nic *efx, 158 unsigned int vf_i) 159{ 160 struct efx_ef10_nic_data *nic_data = efx->nic_data; 161 struct ef10_vf *vf = nic_data->vf + vf_i; 162 int rc; 163 164 if (WARN_ON_ONCE(!nic_data->vf)) 165 return -EOPNOTSUPP; 166 167 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, 168 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, 169 vf->vlan, &vf->vport_id); 170 if (rc) 171 return rc; 172 173 rc = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac); 174 if (rc) { 175 eth_zero_addr(vf->mac); 176 return rc; 177 } 178 179 rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); 180 if (rc) 181 return rc; 182 183 vf->vport_assigned = 1; 184 return 0; 185} 186 187static int efx_ef10_sriov_alloc_vf_vswitching(struct efx_nic *efx) 188{ 189 struct efx_ef10_nic_data *nic_data = efx->nic_data; 190 unsigned int i; 191 int rc; 192 193 nic_data->vf = kcalloc(efx->vf_count, sizeof(struct ef10_vf), 194 GFP_KERNEL); 195 if (!nic_data->vf) 196 return -ENOMEM; 197 198 for (i = 0; i < efx->vf_count; i++) { 199 eth_random_addr(nic_data->vf[i].mac); 200 nic_data->vf[i].efx = NULL; 201 nic_data->vf[i].vlan = EFX_EF10_NO_VLAN; 202 203 rc = efx_ef10_sriov_assign_vf_vport(efx, i); 204 if (rc) 205 goto fail; 206 } 207 208 return 0; 209fail: 210 efx_ef10_sriov_free_vf_vports(efx); 211 kfree(nic_data->vf); 212 nic_data->vf = NULL; 213 return rc; 214} 215 216static int efx_ef10_sriov_restore_vf_vswitching(struct efx_nic *efx) 217{ 218 unsigned int i; 219 int rc; 220 221 for (i = 0; i < efx->vf_count; i++) { 222 rc = efx_ef10_sriov_assign_vf_vport(efx, i); 223 if (rc) 224 goto fail; 225 } 226 227 return 0; 228fail: 229 efx_ef10_sriov_free_vf_vswitching(efx); 230 return rc; 231} 232 233static int efx_ef10_vadaptor_alloc_set_features(struct efx_nic *efx) 234{ 235 u32 port_flags; 236 int rc; 237 238 rc = efx_ef10_vadaptor_alloc(efx, efx->vport_id); 239 if (rc) 240 goto fail_vadaptor_alloc; 241 242 rc = efx_ef10_vadaptor_query(efx, efx->vport_id, 243 &port_flags, NULL, NULL); 244 if (rc) 245 goto fail_vadaptor_query; 246 247 if (port_flags & 248 (1 << MC_CMD_VPORT_ALLOC_IN_FLAG_VLAN_RESTRICT_LBN)) 249 efx->fixed_features |= NETIF_F_HW_VLAN_CTAG_FILTER; 250 else 251 efx->fixed_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; 252 253 return 0; 254 255fail_vadaptor_query: 256 efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); 257fail_vadaptor_alloc: 258 return rc; 259} 260 261/* On top of the default firmware vswitch setup, create a VEB vswitch and 262 * expansion vport for use by this function. 263 */ 264int efx_ef10_vswitching_probe_pf(struct efx_nic *efx) 265{ 266 struct efx_ef10_nic_data *nic_data = efx->nic_data; 267 struct net_device *net_dev = efx->net_dev; 268 int rc; 269 270 if (pci_sriov_get_totalvfs(efx->pci_dev) <= 0) { 271 /* vswitch not needed as we have no VFs */ 272 efx_ef10_vadaptor_alloc_set_features(efx); 273 return 0; 274 } 275 276 rc = efx_ef10_vswitch_alloc(efx, EVB_PORT_ID_ASSIGNED, 277 MC_CMD_VSWITCH_ALLOC_IN_VSWITCH_TYPE_VEB); 278 if (rc) 279 goto fail1; 280 281 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, 282 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, 283 EFX_EF10_NO_VLAN, &efx->vport_id); 284 if (rc) 285 goto fail2; 286 287 rc = efx_ef10_vport_add_mac(efx, efx->vport_id, net_dev->dev_addr); 288 if (rc) 289 goto fail3; 290 ether_addr_copy(nic_data->vport_mac, net_dev->dev_addr); 291 292 rc = efx_ef10_vadaptor_alloc_set_features(efx); 293 if (rc) 294 goto fail4; 295 296 return 0; 297fail4: 298 efx_ef10_vport_del_mac(efx, efx->vport_id, nic_data->vport_mac); 299 eth_zero_addr(nic_data->vport_mac); 300fail3: 301 efx_ef10_vport_free(efx, efx->vport_id); 302 efx->vport_id = EVB_PORT_ID_ASSIGNED; 303fail2: 304 efx_ef10_vswitch_free(efx, EVB_PORT_ID_ASSIGNED); 305fail1: 306 return rc; 307} 308 309int efx_ef10_vswitching_probe_vf(struct efx_nic *efx) 310{ 311 return efx_ef10_vadaptor_alloc_set_features(efx); 312} 313 314int efx_ef10_vswitching_restore_pf(struct efx_nic *efx) 315{ 316 struct efx_ef10_nic_data *nic_data = efx->nic_data; 317 int rc; 318 319 if (!nic_data->must_probe_vswitching) 320 return 0; 321 322 rc = efx_ef10_vswitching_probe_pf(efx); 323 if (rc) 324 goto fail; 325 326 rc = efx_ef10_sriov_restore_vf_vswitching(efx); 327 if (rc) 328 goto fail; 329 330 nic_data->must_probe_vswitching = false; 331fail: 332 return rc; 333} 334 335int efx_ef10_vswitching_restore_vf(struct efx_nic *efx) 336{ 337 struct efx_ef10_nic_data *nic_data = efx->nic_data; 338 int rc; 339 340 if (!nic_data->must_probe_vswitching) 341 return 0; 342 343 rc = efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); 344 if (rc) 345 return rc; 346 347 nic_data->must_probe_vswitching = false; 348 return 0; 349} 350 351void efx_ef10_vswitching_remove_pf(struct efx_nic *efx) 352{ 353 struct efx_ef10_nic_data *nic_data = efx->nic_data; 354 355 efx_ef10_sriov_free_vf_vswitching(efx); 356 357 efx_ef10_vadaptor_free(efx, efx->vport_id); 358 359 if (efx->vport_id == EVB_PORT_ID_ASSIGNED) 360 return; /* No vswitch was ever created */ 361 362 if (!is_zero_ether_addr(nic_data->vport_mac)) { 363 efx_ef10_vport_del_mac(efx, efx->vport_id, 364 efx->net_dev->dev_addr); 365 eth_zero_addr(nic_data->vport_mac); 366 } 367 efx_ef10_vport_free(efx, efx->vport_id); 368 efx->vport_id = EVB_PORT_ID_ASSIGNED; 369 370 /* Only free the vswitch if no VFs are assigned */ 371 if (!pci_vfs_assigned(efx->pci_dev)) 372 efx_ef10_vswitch_free(efx, efx->vport_id); 373} 374 375void efx_ef10_vswitching_remove_vf(struct efx_nic *efx) 376{ 377 efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); 378} 379 380static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs) 381{ 382 int rc = 0; 383 struct pci_dev *dev = efx->pci_dev; 384 385 efx->vf_count = num_vfs; 386 387 rc = efx_ef10_sriov_alloc_vf_vswitching(efx); 388 if (rc) 389 goto fail1; 390 391 rc = pci_enable_sriov(dev, num_vfs); 392 if (rc) 393 goto fail2; 394 395 return 0; 396fail2: 397 efx_ef10_sriov_free_vf_vswitching(efx); 398fail1: 399 efx->vf_count = 0; 400 netif_err(efx, probe, efx->net_dev, 401 "Failed to enable SRIOV VFs\n"); 402 return rc; 403} 404 405/* Disable SRIOV and remove VFs 406 * If some VFs are attached to a guest (using Xen, only) nothing is 407 * done if force=false, and vports are freed if force=true (for the non 408 * attachedc ones, only) but SRIOV is not disabled and VFs are not 409 * removed in either case. 410 */ 411static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force) 412{ 413 struct pci_dev *dev = efx->pci_dev; 414 struct efx_ef10_nic_data *nic_data = efx->nic_data; 415 unsigned int vfs_assigned = pci_vfs_assigned(dev); 416 int i, rc = 0; 417 418 if (vfs_assigned && !force) { 419 netif_info(efx, drv, efx->net_dev, "VFs are assigned to guests; " 420 "please detach them before disabling SR-IOV\n"); 421 return -EBUSY; 422 } 423 424 if (!vfs_assigned) { 425 for (i = 0; i < efx->vf_count; i++) 426 nic_data->vf[i].pci_dev = NULL; 427 pci_disable_sriov(dev); 428 } else { 429 rc = -EBUSY; 430 } 431 432 efx_ef10_sriov_free_vf_vswitching(efx); 433 efx->vf_count = 0; 434 return rc; 435} 436 437int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs) 438{ 439 if (num_vfs == 0) 440 return efx_ef10_pci_sriov_disable(efx, false); 441 else 442 return efx_ef10_pci_sriov_enable(efx, num_vfs); 443} 444 445int efx_ef10_sriov_init(struct efx_nic *efx) 446{ 447 return 0; 448} 449 450void efx_ef10_sriov_fini(struct efx_nic *efx) 451{ 452 struct efx_ef10_nic_data *nic_data = efx->nic_data; 453 int rc; 454 455 if (!nic_data->vf) { 456 /* Remove any un-assigned orphaned VFs */ 457 if (pci_num_vf(efx->pci_dev) && !pci_vfs_assigned(efx->pci_dev)) 458 pci_disable_sriov(efx->pci_dev); 459 return; 460 } 461 462 /* Disable SRIOV and remove any VFs in the host */ 463 rc = efx_ef10_pci_sriov_disable(efx, true); 464 if (rc) 465 netif_dbg(efx, drv, efx->net_dev, 466 "Disabling SRIOV was not successful rc=%d\n", rc); 467 else 468 netif_dbg(efx, drv, efx->net_dev, "SRIOV disabled\n"); 469} 470 471static int efx_ef10_vport_del_vf_mac(struct efx_nic *efx, unsigned int port_id, 472 u8 *mac) 473{ 474 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN); 475 MCDI_DECLARE_BUF_ERR(outbuf); 476 size_t outlen; 477 int rc; 478 479 MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id); 480 ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac); 481 482 rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf, 483 sizeof(inbuf), outbuf, sizeof(outbuf), &outlen); 484 485 return rc; 486} 487 488int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac) 489{ 490 struct efx_ef10_nic_data *nic_data = efx->nic_data; 491 struct ef10_vf *vf; 492 int rc; 493 494 if (!nic_data->vf) 495 return -EOPNOTSUPP; 496 497 if (vf_i >= efx->vf_count) 498 return -EINVAL; 499 vf = nic_data->vf + vf_i; 500 501 if (vf->efx) { 502 efx_device_detach_sync(vf->efx); 503 efx_net_stop(vf->efx->net_dev); 504 505 down_write(&vf->efx->filter_sem); 506 vf->efx->type->filter_table_remove(vf->efx); 507 508 rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED); 509 if (rc) { 510 up_write(&vf->efx->filter_sem); 511 return rc; 512 } 513 } 514 515 rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i); 516 if (rc) 517 return rc; 518 519 if (!is_zero_ether_addr(vf->mac)) { 520 rc = efx_ef10_vport_del_vf_mac(efx, vf->vport_id, vf->mac); 521 if (rc) 522 return rc; 523 } 524 525 if (!is_zero_ether_addr(mac)) { 526 rc = efx_ef10_vport_add_mac(efx, vf->vport_id, mac); 527 if (rc) 528 goto fail; 529 530 if (vf->efx) 531 ether_addr_copy(vf->efx->net_dev->dev_addr, mac); 532 } 533 534 ether_addr_copy(vf->mac, mac); 535 536 rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); 537 if (rc) 538 goto fail; 539 540 if (vf->efx) { 541 /* VF cannot use the vport_id that the PF created */ 542 rc = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED); 543 if (rc) { 544 up_write(&vf->efx->filter_sem); 545 return rc; 546 } 547 vf->efx->type->filter_table_probe(vf->efx); 548 up_write(&vf->efx->filter_sem); 549 efx_net_open(vf->efx->net_dev); 550 efx_device_attach_if_not_resetting(vf->efx); 551 } 552 553 return 0; 554 555fail: 556 eth_zero_addr(vf->mac); 557 return rc; 558} 559 560int efx_ef10_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i, u16 vlan, 561 u8 qos) 562{ 563 struct efx_ef10_nic_data *nic_data = efx->nic_data; 564 struct ef10_vf *vf; 565 u16 new_vlan; 566 int rc = 0, rc2 = 0; 567 568 if (vf_i >= efx->vf_count) 569 return -EINVAL; 570 if (qos != 0) 571 return -EINVAL; 572 573 vf = nic_data->vf + vf_i; 574 575 new_vlan = (vlan == 0) ? EFX_EF10_NO_VLAN : vlan; 576 if (new_vlan == vf->vlan) 577 return 0; 578 579 if (vf->efx) { 580 efx_device_detach_sync(vf->efx); 581 efx_net_stop(vf->efx->net_dev); 582 583 mutex_lock(&vf->efx->mac_lock); 584 down_write(&vf->efx->filter_sem); 585 vf->efx->type->filter_table_remove(vf->efx); 586 587 rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED); 588 if (rc) 589 goto restore_filters; 590 } 591 592 if (vf->vport_assigned) { 593 rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i); 594 if (rc) { 595 netif_warn(efx, drv, efx->net_dev, 596 "Failed to change vlan on VF %d.\n", vf_i); 597 netif_warn(efx, drv, efx->net_dev, 598 "This is likely because the VF is bound to a driver in a VM.\n"); 599 netif_warn(efx, drv, efx->net_dev, 600 "Please unload the driver in the VM.\n"); 601 goto restore_vadaptor; 602 } 603 vf->vport_assigned = 0; 604 } 605 606 if (!is_zero_ether_addr(vf->mac)) { 607 rc = efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac); 608 if (rc) 609 goto restore_evb_port; 610 } 611 612 if (vf->vport_id) { 613 rc = efx_ef10_vport_free(efx, vf->vport_id); 614 if (rc) 615 goto restore_mac; 616 vf->vport_id = 0; 617 } 618 619 /* Do the actual vlan change */ 620 vf->vlan = new_vlan; 621 622 /* Restore everything in reverse order */ 623 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, 624 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, 625 vf->vlan, &vf->vport_id); 626 if (rc) 627 goto reset_nic_up_write; 628 629restore_mac: 630 if (!is_zero_ether_addr(vf->mac)) { 631 rc2 = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac); 632 if (rc2) { 633 eth_zero_addr(vf->mac); 634 goto reset_nic_up_write; 635 } 636 } 637 638restore_evb_port: 639 rc2 = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); 640 if (rc2) 641 goto reset_nic_up_write; 642 else 643 vf->vport_assigned = 1; 644 645restore_vadaptor: 646 if (vf->efx) { 647 rc2 = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED); 648 if (rc2) 649 goto reset_nic_up_write; 650 } 651 652restore_filters: 653 if (vf->efx) { 654 rc2 = vf->efx->type->filter_table_probe(vf->efx); 655 if (rc2) 656 goto reset_nic_up_write; 657 658 up_write(&vf->efx->filter_sem); 659 mutex_unlock(&vf->efx->mac_lock); 660 661 rc2 = efx_net_open(vf->efx->net_dev); 662 if (rc2) 663 goto reset_nic; 664 665 efx_device_attach_if_not_resetting(vf->efx); 666 } 667 return rc; 668 669reset_nic_up_write: 670 if (vf->efx) { 671 up_write(&vf->efx->filter_sem); 672 mutex_unlock(&vf->efx->mac_lock); 673 } 674reset_nic: 675 if (vf->efx) { 676 netif_err(efx, drv, efx->net_dev, 677 "Failed to restore VF - scheduling reset.\n"); 678 efx_schedule_reset(vf->efx, RESET_TYPE_DATAPATH); 679 } else { 680 netif_err(efx, drv, efx->net_dev, 681 "Failed to restore the VF and cannot reset the VF " 682 "- VF is not functional.\n"); 683 netif_err(efx, drv, efx->net_dev, 684 "Please reload the driver attached to the VF.\n"); 685 } 686 687 return rc ? rc : rc2; 688} 689 690static int efx_ef10_sriov_set_privilege_mask(struct efx_nic *efx, int vf_i, 691 u32 mask, u32 value) 692{ 693 MCDI_DECLARE_BUF(pm_outbuf, MC_CMD_PRIVILEGE_MASK_OUT_LEN); 694 MCDI_DECLARE_BUF(pm_inbuf, MC_CMD_PRIVILEGE_MASK_IN_LEN); 695 struct efx_ef10_nic_data *nic_data = efx->nic_data; 696 u32 old_mask, new_mask; 697 size_t outlen; 698 int rc; 699 700 EFX_WARN_ON_PARANOID((value & ~mask) != 0); 701 702 /* Get privilege mask */ 703 MCDI_POPULATE_DWORD_2(pm_inbuf, PRIVILEGE_MASK_IN_FUNCTION, 704 PRIVILEGE_MASK_IN_FUNCTION_PF, nic_data->pf_index, 705 PRIVILEGE_MASK_IN_FUNCTION_VF, vf_i); 706 707 rc = efx_mcdi_rpc(efx, MC_CMD_PRIVILEGE_MASK, 708 pm_inbuf, sizeof(pm_inbuf), 709 pm_outbuf, sizeof(pm_outbuf), &outlen); 710 711 if (rc != 0) 712 return rc; 713 if (outlen != MC_CMD_PRIVILEGE_MASK_OUT_LEN) 714 return -EIO; 715 716 old_mask = MCDI_DWORD(pm_outbuf, PRIVILEGE_MASK_OUT_OLD_MASK); 717 718 new_mask = old_mask & ~mask; 719 new_mask |= value; 720 721 if (new_mask == old_mask) 722 return 0; 723 724 new_mask |= MC_CMD_PRIVILEGE_MASK_IN_DO_CHANGE; 725 726 /* Set privilege mask */ 727 MCDI_SET_DWORD(pm_inbuf, PRIVILEGE_MASK_IN_NEW_MASK, new_mask); 728 729 rc = efx_mcdi_rpc(efx, MC_CMD_PRIVILEGE_MASK, 730 pm_inbuf, sizeof(pm_inbuf), 731 pm_outbuf, sizeof(pm_outbuf), &outlen); 732 733 if (rc != 0) 734 return rc; 735 if (outlen != MC_CMD_PRIVILEGE_MASK_OUT_LEN) 736 return -EIO; 737 738 return 0; 739} 740 741int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i, bool spoofchk) 742{ 743 struct efx_ef10_nic_data *nic_data = efx->nic_data; 744 745 /* Can't enable spoofchk if firmware doesn't support it. */ 746 if (!(nic_data->datapath_caps & 747 BIT(MC_CMD_GET_CAPABILITIES_OUT_TX_MAC_SECURITY_FILTERING_LBN)) && 748 spoofchk) 749 return -EOPNOTSUPP; 750 751 return efx_ef10_sriov_set_privilege_mask(efx, vf_i, 752 MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX, 753 spoofchk ? 0 : MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX); 754} 755 756int efx_ef10_sriov_set_vf_link_state(struct efx_nic *efx, int vf_i, 757 int link_state) 758{ 759 MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN); 760 struct efx_ef10_nic_data *nic_data = efx->nic_data; 761 762 BUILD_BUG_ON(IFLA_VF_LINK_STATE_AUTO != 763 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_AUTO); 764 BUILD_BUG_ON(IFLA_VF_LINK_STATE_ENABLE != 765 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_UP); 766 BUILD_BUG_ON(IFLA_VF_LINK_STATE_DISABLE != 767 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_DOWN); 768 MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION, 769 LINK_STATE_MODE_IN_FUNCTION_PF, 770 nic_data->pf_index, 771 LINK_STATE_MODE_IN_FUNCTION_VF, vf_i); 772 MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, link_state); 773 return efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf), 774 NULL, 0, NULL); /* don't care what old mode was */ 775} 776 777int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf_i, 778 struct ifla_vf_info *ivf) 779{ 780 MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN); 781 MCDI_DECLARE_BUF(outbuf, MC_CMD_LINK_STATE_MODE_OUT_LEN); 782 783 struct efx_ef10_nic_data *nic_data = efx->nic_data; 784 struct ef10_vf *vf; 785 size_t outlen; 786 int rc; 787 788 if (vf_i >= efx->vf_count) 789 return -EINVAL; 790 791 if (!nic_data->vf) 792 return -EOPNOTSUPP; 793 794 vf = nic_data->vf + vf_i; 795 796 ivf->vf = vf_i; 797 ivf->min_tx_rate = 0; 798 ivf->max_tx_rate = 0; 799 ether_addr_copy(ivf->mac, vf->mac); 800 ivf->vlan = (vf->vlan == EFX_EF10_NO_VLAN) ? 0 : vf->vlan; 801 ivf->qos = 0; 802 803 MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION, 804 LINK_STATE_MODE_IN_FUNCTION_PF, 805 nic_data->pf_index, 806 LINK_STATE_MODE_IN_FUNCTION_VF, vf_i); 807 MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, 808 MC_CMD_LINK_STATE_MODE_IN_DO_NOT_CHANGE); 809 rc = efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf), 810 outbuf, sizeof(outbuf), &outlen); 811 if (rc) 812 return rc; 813 if (outlen < MC_CMD_LINK_STATE_MODE_OUT_LEN) 814 return -EIO; 815 ivf->linkstate = MCDI_DWORD(outbuf, LINK_STATE_MODE_OUT_OLD_MODE); 816 817 return 0; 818} 819