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ixgbe_sriov.c
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linux-6.19.14/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 1999 - 2018 Intel Corporation. */ 3 4#include <linux/types.h> 5#include <linux/module.h> 6#include <linux/pci.h> 7#include <linux/netdevice.h> 8#include <linux/vmalloc.h> 9#include <linux/string.h> 10#include <linux/in.h> 11#include <linux/ip.h> 12#include <linux/tcp.h> 13#include <linux/ipv6.h> 14#include <linux/if_bridge.h> 15#ifdef NETIF_F_HW_VLAN_CTAG_TX 16#include <linux/if_vlan.h> 17#endif 18 19#include "ixgbe.h" 20#include "ixgbe_type.h" 21#include "ixgbe_mbx.h" 22#include "ixgbe_sriov.h" 23 24#ifdef CONFIG_PCI_IOV 25static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter, 26 unsigned int num_vfs) 27{ 28 struct ixgbe_hw *hw = &adapter->hw; 29 struct vf_macvlans *mv_list; 30 int num_vf_macvlans, i; 31 32 /* Initialize list of VF macvlans */ 33 INIT_LIST_HEAD(&adapter->vf_mvs.l); 34 35 num_vf_macvlans = hw->mac.num_rar_entries - 36 (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs); 37 if (!num_vf_macvlans) 38 return; 39 40 mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans), 41 GFP_KERNEL); 42 if (mv_list) { 43 for (i = 0; i < num_vf_macvlans; i++) { 44 mv_list[i].vf = -1; 45 mv_list[i].free = true; 46 list_add(&mv_list[i].l, &adapter->vf_mvs.l); 47 } 48 adapter->mv_list = mv_list; 49 } 50} 51 52static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter, 53 unsigned int num_vfs) 54{ 55 struct ixgbe_hw *hw = &adapter->hw; 56 int i; 57 58 if (adapter->xdp_prog) { 59 e_warn(probe, "SRIOV is not supported with XDP\n"); 60 return -EINVAL; 61 } 62 63 /* Enable VMDq flag so device will be set in VM mode */ 64 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED | 65 IXGBE_FLAG_VMDQ_ENABLED; 66 67 /* Allocate memory for per VF control structures */ 68 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage), 69 GFP_KERNEL); 70 if (!adapter->vfinfo) 71 return -ENOMEM; 72 73 adapter->num_vfs = num_vfs; 74 75 ixgbe_alloc_vf_macvlans(adapter, num_vfs); 76 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs; 77 78 /* Initialize default switching mode VEB */ 79 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); 80 adapter->bridge_mode = BRIDGE_MODE_VEB; 81 82 /* limit traffic classes based on VFs enabled */ 83 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) { 84 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; 85 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; 86 } else if (num_vfs < 32) { 87 adapter->dcb_cfg.num_tcs.pg_tcs = 4; 88 adapter->dcb_cfg.num_tcs.pfc_tcs = 4; 89 } else { 90 adapter->dcb_cfg.num_tcs.pg_tcs = 1; 91 adapter->dcb_cfg.num_tcs.pfc_tcs = 1; 92 } 93 94 /* Disable RSC when in SR-IOV mode */ 95 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | 96 IXGBE_FLAG2_RSC_ENABLED); 97 98 for (i = 0; i < num_vfs; i++) { 99 /* enable spoof checking for all VFs */ 100 adapter->vfinfo[i].spoofchk_enabled = true; 101 adapter->vfinfo[i].link_enable = true; 102 103 /* We support VF RSS querying only for 82599 and x540 104 * devices at the moment. These devices share RSS 105 * indirection table and RSS hash key with PF therefore 106 * we want to disable the querying by default. 107 */ 108 adapter->vfinfo[i].rss_query_enabled = false; 109 110 /* Untrust all VFs */ 111 adapter->vfinfo[i].trusted = false; 112 113 /* set the default xcast mode */ 114 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE; 115 } 116 117 e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs); 118 return 0; 119} 120 121/** 122 * ixgbe_get_vfs - Find and take references to all vf devices 123 * @adapter: Pointer to adapter struct 124 */ 125static void ixgbe_get_vfs(struct ixgbe_adapter *adapter) 126{ 127 struct pci_dev *pdev = adapter->pdev; 128 u16 vendor = pdev->vendor; 129 struct pci_dev *vfdev; 130 int vf = 0; 131 u16 vf_id; 132 int pos; 133 134 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 135 if (!pos) 136 return; 137 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id); 138 139 vfdev = pci_get_device(vendor, vf_id, NULL); 140 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) { 141 if (!vfdev->is_virtfn) 142 continue; 143 if (vfdev->physfn != pdev) 144 continue; 145 if (vf >= adapter->num_vfs) 146 continue; 147 pci_dev_get(vfdev); 148 adapter->vfinfo[vf].vfdev = vfdev; 149 ++vf; 150 } 151} 152 153/* Note this function is called when the user wants to enable SR-IOV 154 * VFs using the now deprecated module parameter 155 */ 156void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs) 157{ 158 int pre_existing_vfs = 0; 159 unsigned int num_vfs; 160 161 pre_existing_vfs = pci_num_vf(adapter->pdev); 162 if (!pre_existing_vfs && !max_vfs) 163 return; 164 165 /* If there are pre-existing VFs then we have to force 166 * use of that many - over ride any module parameter value. 167 * This may result from the user unloading the PF driver 168 * while VFs were assigned to guest VMs or because the VFs 169 * have been created via the new PCI SR-IOV sysfs interface. 170 */ 171 if (pre_existing_vfs) { 172 num_vfs = pre_existing_vfs; 173 dev_warn(&adapter->pdev->dev, 174 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n"); 175 } else { 176 int err; 177 /* 178 * The 82599 supports up to 64 VFs per physical function 179 * but this implementation limits allocation to 63 so that 180 * basic networking resources are still available to the 181 * physical function. If the user requests greater than 182 * 63 VFs then it is an error - reset to default of zero. 183 */ 184 num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT); 185 186 err = pci_enable_sriov(adapter->pdev, num_vfs); 187 if (err) { 188 e_err(probe, "Failed to enable PCI sriov: %d\n", err); 189 return; 190 } 191 } 192 193 if (!__ixgbe_enable_sriov(adapter, num_vfs)) { 194 ixgbe_get_vfs(adapter); 195 return; 196 } 197 198 /* If we have gotten to this point then there is no memory available 199 * to manage the VF devices - print message and bail. 200 */ 201 e_err(probe, "Unable to allocate memory for VF Data Storage - " 202 "SRIOV disabled\n"); 203 ixgbe_disable_sriov(adapter); 204} 205 206#endif /* #ifdef CONFIG_PCI_IOV */ 207int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) 208{ 209 unsigned int num_vfs = adapter->num_vfs, vf; 210 struct ixgbe_hw *hw = &adapter->hw; 211 unsigned long flags; 212 int rss; 213 214 spin_lock_irqsave(&adapter->vfs_lock, flags); 215 /* set num VFs to 0 to prevent access to vfinfo */ 216 adapter->num_vfs = 0; 217 spin_unlock_irqrestore(&adapter->vfs_lock, flags); 218 219 /* put the reference to all of the vf devices */ 220 for (vf = 0; vf < num_vfs; ++vf) { 221 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev; 222 223 if (!vfdev) 224 continue; 225 adapter->vfinfo[vf].vfdev = NULL; 226 pci_dev_put(vfdev); 227 } 228 229 /* free VF control structures */ 230 kfree(adapter->vfinfo); 231 adapter->vfinfo = NULL; 232 233 /* free macvlan list */ 234 kfree(adapter->mv_list); 235 adapter->mv_list = NULL; 236 237 /* if SR-IOV is already disabled then there is nothing to do */ 238 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) 239 return 0; 240 241 if (hw->mac.ops.disable_mdd) 242 hw->mac.ops.disable_mdd(hw); 243 244#ifdef CONFIG_PCI_IOV 245 /* 246 * If our VFs are assigned we cannot shut down SR-IOV 247 * without causing issues, so just leave the hardware 248 * available but disabled 249 */ 250 if (pci_vfs_assigned(adapter->pdev)) { 251 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); 252 return -EPERM; 253 } 254 /* disable iov and allow time for transactions to clear */ 255 pci_disable_sriov(adapter->pdev); 256#endif 257 258 /* Disable VMDq flag so device will be set in VM mode */ 259 if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) { 260 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; 261 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; 262 rss = min_t(int, ixgbe_max_rss_indices(adapter), 263 num_online_cpus()); 264 } else { 265 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus()); 266 } 267 268 adapter->ring_feature[RING_F_VMDQ].offset = 0; 269 adapter->ring_feature[RING_F_RSS].limit = rss; 270 271 /* take a breather then clean up driver data */ 272 msleep(100); 273 return 0; 274} 275 276static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) 277{ 278#ifdef CONFIG_PCI_IOV 279 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 280 int pre_existing_vfs = pci_num_vf(dev); 281 int err = 0, num_rx_pools, i, limit; 282 u8 num_tc; 283 284 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 285 err = ixgbe_disable_sriov(adapter); 286 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 287 return num_vfs; 288 289 if (err) 290 return err; 291 292 /* While the SR-IOV capability structure reports total VFs to be 64, 293 * we limit the actual number allocated as below based on two factors. 294 * Num_TCs MAX_VFs 295 * 1 63 296 * <=4 31 297 * >4 15 298 * First, we reserve some transmit/receive resources for the PF. 299 * Second, VMDQ also uses the same pools that SR-IOV does. We need to 300 * account for this, so that we don't accidentally allocate more VFs 301 * than we have available pools. The PCI bus driver already checks for 302 * other values out of range. 303 */ 304 num_tc = adapter->hw_tcs; 305 num_rx_pools = bitmap_weight(adapter->fwd_bitmask, 306 adapter->num_rx_pools); 307 limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC : 308 (num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC; 309 310 if (num_vfs > (limit - num_rx_pools)) { 311 e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n", 312 num_tc, num_rx_pools - 1, limit - num_rx_pools); 313 return -EPERM; 314 } 315 316 err = __ixgbe_enable_sriov(adapter, num_vfs); 317 if (err) 318 return err; 319 320 for (i = 0; i < num_vfs; i++) 321 ixgbe_vf_configuration(dev, (i | 0x10000000)); 322 323 /* reset before enabling SRIOV to avoid mailbox issues */ 324 ixgbe_sriov_reinit(adapter); 325 326 err = pci_enable_sriov(dev, num_vfs); 327 if (err) { 328 e_dev_warn("Failed to enable PCI sriov: %d\n", err); 329 return err; 330 } 331 ixgbe_get_vfs(adapter); 332 333 return num_vfs; 334#else 335 return 0; 336#endif 337} 338 339static int ixgbe_pci_sriov_disable(struct pci_dev *dev) 340{ 341 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 342 int err; 343#ifdef CONFIG_PCI_IOV 344 u32 current_flags = adapter->flags; 345 int prev_num_vf = pci_num_vf(dev); 346#endif 347 348 err = ixgbe_disable_sriov(adapter); 349 350 /* Only reinit if no error and state changed */ 351#ifdef CONFIG_PCI_IOV 352 if (!err && (current_flags != adapter->flags || 353 prev_num_vf != pci_num_vf(dev))) 354 ixgbe_sriov_reinit(adapter); 355#endif 356 357 return err; 358} 359 360int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs) 361{ 362 if (num_vfs == 0) 363 return ixgbe_pci_sriov_disable(dev); 364 else 365 return ixgbe_pci_sriov_enable(dev, num_vfs); 366} 367 368static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, 369 u32 *msgbuf, u32 vf) 370{ 371 int entries = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]); 372 u16 *hash_list = (u16 *)&msgbuf[1]; 373 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 374 struct ixgbe_hw *hw = &adapter->hw; 375 int i; 376 u32 vector_bit; 377 u32 vector_reg; 378 u32 mta_reg; 379 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); 380 381 /* only so many hash values supported */ 382 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); 383 384 /* 385 * salt away the number of multi cast addresses assigned 386 * to this VF for later use to restore when the PF multi cast 387 * list changes 388 */ 389 vfinfo->num_vf_mc_hashes = entries; 390 391 /* 392 * VFs are limited to using the MTA hash table for their multicast 393 * addresses 394 */ 395 for (i = 0; i < entries; i++) { 396 vfinfo->vf_mc_hashes[i] = hash_list[i]; 397 } 398 399 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { 400 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; 401 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; 402 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 403 mta_reg |= BIT(vector_bit); 404 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 405 } 406 vmolr |= IXGBE_VMOLR_ROMPE; 407 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); 408 409 return 0; 410} 411 412#ifdef CONFIG_PCI_IOV 413void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) 414{ 415 struct ixgbe_hw *hw = &adapter->hw; 416 struct vf_data_storage *vfinfo; 417 int i, j; 418 u32 vector_bit; 419 u32 vector_reg; 420 u32 mta_reg; 421 422 for (i = 0; i < adapter->num_vfs; i++) { 423 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i)); 424 vfinfo = &adapter->vfinfo[i]; 425 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { 426 hw->addr_ctrl.mta_in_use++; 427 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; 428 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; 429 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 430 mta_reg |= BIT(vector_bit); 431 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 432 } 433 434 if (vfinfo->num_vf_mc_hashes) 435 vmolr |= IXGBE_VMOLR_ROMPE; 436 else 437 vmolr &= ~IXGBE_VMOLR_ROMPE; 438 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr); 439 } 440 441 /* Restore any VF macvlans */ 442 ixgbe_full_sync_mac_table(adapter); 443} 444#endif 445 446static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, 447 u32 vf) 448{ 449 struct ixgbe_hw *hw = &adapter->hw; 450 int err; 451 452 /* If VLAN overlaps with one the PF is currently monitoring make 453 * sure that we are able to allocate a VLVF entry. This may be 454 * redundant but it guarantees PF will maintain visibility to 455 * the VLAN. 456 */ 457 if (add && test_bit(vid, adapter->active_vlans)) { 458 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false); 459 if (err) 460 return err; 461 } 462 463 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false); 464 465 if (add && !err) 466 return err; 467 468 /* If we failed to add the VF VLAN or we are removing the VF VLAN 469 * we may need to drop the PF pool bit in order to allow us to free 470 * up the VLVF resources. 471 */ 472 if (test_bit(vid, adapter->active_vlans) || 473 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC)) 474 ixgbe_update_pf_promisc_vlvf(adapter, vid); 475 476 return err; 477} 478 479static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf) 480{ 481 struct ixgbe_hw *hw = &adapter->hw; 482 u32 max_frs; 483 484 if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { 485 e_err(drv, "VF max_frame %d out of range\n", max_frame); 486 return -EINVAL; 487 } 488 489 /* 490 * For 82599EB we have to keep all PFs and VFs operating with 491 * the same max_frame value in order to avoid sending an oversize 492 * frame to a VF. In order to guarantee this is handled correctly 493 * for all cases we have several special exceptions to take into 494 * account before we can enable the VF for receive 495 */ 496 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 497 struct net_device *dev = adapter->netdev; 498 int pf_max_frame = dev->mtu + ETH_HLEN; 499 u32 reg_offset, vf_shift, vfre; 500 int err = 0; 501 502#ifdef CONFIG_FCOE 503 if (dev->fcoe_mtu) 504 pf_max_frame = max_t(int, pf_max_frame, 505 IXGBE_FCOE_JUMBO_FRAME_SIZE); 506 507#endif /* CONFIG_FCOE */ 508 switch (adapter->vfinfo[vf].vf_api) { 509 case ixgbe_mbox_api_11: 510 case ixgbe_mbox_api_12: 511 case ixgbe_mbox_api_13: 512 case ixgbe_mbox_api_14: 513 case ixgbe_mbox_api_16: 514 case ixgbe_mbox_api_17: 515 /* Version 1.1 supports jumbo frames on VFs if PF has 516 * jumbo frames enabled which means legacy VFs are 517 * disabled 518 */ 519 if (pf_max_frame > ETH_FRAME_LEN) 520 break; 521 fallthrough; 522 default: 523 /* If the PF or VF are running w/ jumbo frames enabled 524 * we need to shut down the VF Rx path as we cannot 525 * support jumbo frames on legacy VFs 526 */ 527 if ((pf_max_frame > ETH_FRAME_LEN) || 528 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) 529 err = -EINVAL; 530 break; 531 } 532 533 /* determine VF receive enable location */ 534 vf_shift = vf % 32; 535 reg_offset = vf / 32; 536 537 /* enable or disable receive depending on error */ 538 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 539 if (err) 540 vfre &= ~BIT(vf_shift); 541 else 542 vfre |= BIT(vf_shift); 543 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); 544 545 if (err) { 546 e_err(drv, "VF max_frame %d out of range\n", max_frame); 547 return err; 548 } 549 } 550 551 /* pull current max frame size from hardware */ 552 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); 553 max_frs &= IXGBE_MHADD_MFS_MASK; 554 max_frs >>= IXGBE_MHADD_MFS_SHIFT; 555 556 if (max_frs < max_frame) { 557 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; 558 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); 559 } 560 561 e_info(hw, "VF requests change max MTU to %d\n", max_frame); 562 563 return 0; 564} 565 566static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) 567{ 568 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); 569 vmolr |= IXGBE_VMOLR_BAM; 570 if (aupe) 571 vmolr |= IXGBE_VMOLR_AUPE; 572 else 573 vmolr &= ~IXGBE_VMOLR_AUPE; 574 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); 575} 576 577static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) 578{ 579 struct ixgbe_hw *hw = &adapter->hw; 580 581 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); 582} 583 584static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf) 585{ 586 struct ixgbe_hw *hw = &adapter->hw; 587 u32 vlvfb_mask, pool_mask, i; 588 589 /* create mask for VF and other pools */ 590 pool_mask = ~BIT(VMDQ_P(0) % 32); 591 vlvfb_mask = BIT(vf % 32); 592 593 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */ 594 for (i = IXGBE_VLVF_ENTRIES; i--;) { 595 u32 bits[2], vlvfb, vid, vfta, vlvf; 596 u32 word = i * 2 + vf / 32; 597 u32 mask; 598 599 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word)); 600 601 /* if our bit isn't set we can skip it */ 602 if (!(vlvfb & vlvfb_mask)) 603 continue; 604 605 /* clear our bit from vlvfb */ 606 vlvfb ^= vlvfb_mask; 607 608 /* create 64b mask to chedk to see if we should clear VLVF */ 609 bits[word % 2] = vlvfb; 610 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1)); 611 612 /* if other pools are present, just remove ourselves */ 613 if (bits[(VMDQ_P(0) / 32) ^ 1] || 614 (bits[VMDQ_P(0) / 32] & pool_mask)) 615 goto update_vlvfb; 616 617 /* if PF is present, leave VFTA */ 618 if (bits[0] || bits[1]) 619 goto update_vlvf; 620 621 /* if we cannot determine VLAN just remove ourselves */ 622 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i)); 623 if (!vlvf) 624 goto update_vlvfb; 625 626 vid = vlvf & VLAN_VID_MASK; 627 mask = BIT(vid % 32); 628 629 /* clear bit from VFTA */ 630 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32)); 631 if (vfta & mask) 632 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask); 633update_vlvf: 634 /* clear POOL selection enable */ 635 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0); 636 637 if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC)) 638 vlvfb = 0; 639update_vlvfb: 640 /* clear pool bits */ 641 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb); 642 } 643} 644 645static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, 646 int vf, int index, unsigned char *mac_addr) 647{ 648 struct vf_macvlans *entry; 649 bool found = false; 650 int retval = 0; 651 652 if (index <= 1) { 653 list_for_each_entry(entry, &adapter->vf_mvs.l, l) { 654 if (entry->vf == vf) { 655 entry->vf = -1; 656 entry->free = true; 657 entry->is_macvlan = false; 658 ixgbe_del_mac_filter(adapter, 659 entry->vf_macvlan, vf); 660 } 661 } 662 } 663 664 /* 665 * If index was zero then we were asked to clear the uc list 666 * for the VF. We're done. 667 */ 668 if (!index) 669 return 0; 670 671 list_for_each_entry(entry, &adapter->vf_mvs.l, l) { 672 if (entry->free) { 673 found = true; 674 break; 675 } 676 } 677 678 /* 679 * If we traversed the entire list and didn't find a free entry 680 * then we're out of space on the RAR table. It's also possible 681 * for the &adapter->vf_mvs.l list to be empty because the original 682 * memory allocation for the list failed, which is not fatal but does 683 * mean we can't support VF requests for MACVLAN because we couldn't 684 * allocate memory for the list management required. 685 */ 686 if (!found) 687 return -ENOSPC; 688 689 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf); 690 if (retval < 0) 691 return retval; 692 693 entry->free = false; 694 entry->is_macvlan = true; 695 entry->vf = vf; 696 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); 697 698 return 0; 699} 700 701static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) 702{ 703 struct ixgbe_hw *hw = &adapter->hw; 704 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 705 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 706 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 707 u8 num_tcs = adapter->hw_tcs; 708 u32 reg_val; 709 u32 queue; 710 711 /* remove VLAN filters belonging to this VF */ 712 ixgbe_clear_vf_vlans(adapter, vf); 713 714 /* add back PF assigned VLAN or VLAN 0 */ 715 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); 716 717 /* reset offloads to defaults */ 718 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); 719 720 /* set outgoing tags for VFs */ 721 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { 722 ixgbe_clear_vmvir(adapter, vf); 723 } else { 724 if (vfinfo->pf_qos || !num_tcs) 725 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 726 vfinfo->pf_qos, vf); 727 else 728 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 729 adapter->default_up, vf); 730 731 if (vfinfo->spoofchk_enabled) { 732 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 733 hw->mac.ops.set_mac_anti_spoofing(hw, true, vf); 734 } 735 } 736 737 /* reset multicast table array for vf */ 738 adapter->vfinfo[vf].num_vf_mc_hashes = 0; 739 740 /* clear any ipsec table info */ 741 ixgbe_ipsec_vf_clear(adapter, vf); 742 743 /* Flush and reset the mta with the new values */ 744 ixgbe_set_rx_mode(adapter->netdev); 745 746 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); 747 ixgbe_set_vf_macvlan(adapter, vf, 0, NULL); 748 749 /* reset VF api back to unknown */ 750 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; 751 752 /* Restart each queue for given VF */ 753 for (queue = 0; queue < q_per_pool; queue++) { 754 unsigned int reg_idx = (vf * q_per_pool) + queue; 755 756 reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx)); 757 758 /* Re-enabling only configured queues */ 759 if (reg_val) { 760 reg_val |= IXGBE_TXDCTL_ENABLE; 761 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val); 762 reg_val &= ~IXGBE_TXDCTL_ENABLE; 763 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val); 764 } 765 } 766 767 IXGBE_WRITE_FLUSH(hw); 768} 769 770static void ixgbe_vf_clear_mbx(struct ixgbe_adapter *adapter, u32 vf) 771{ 772 struct ixgbe_hw *hw = &adapter->hw; 773 u32 word; 774 775 /* Clear VF's mailbox memory */ 776 for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++) 777 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0); 778 779 IXGBE_WRITE_FLUSH(hw); 780} 781 782static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, 783 int vf, unsigned char *mac_addr) 784{ 785 int retval; 786 787 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); 788 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf); 789 if (retval >= 0) 790 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 791 ETH_ALEN); 792 else 793 eth_zero_addr(adapter->vfinfo[vf].vf_mac_addresses); 794 795 return retval; 796} 797 798int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) 799{ 800 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); 801 unsigned int vfn = (event_mask & 0x3f); 802 803 bool enable = ((event_mask & 0x10000000U) != 0); 804 805 if (enable) 806 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses); 807 808 return 0; 809} 810 811static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf, 812 u32 qde) 813{ 814 struct ixgbe_hw *hw = &adapter->hw; 815 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 816 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 817 int i; 818 819 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) { 820 u32 reg; 821 822 /* flush previous write */ 823 IXGBE_WRITE_FLUSH(hw); 824 825 /* indicate to hardware that we want to set drop enable */ 826 reg = IXGBE_QDE_WRITE | qde; 827 reg |= i << IXGBE_QDE_IDX_SHIFT; 828 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg); 829 } 830} 831 832/** 833 * ixgbe_set_vf_rx_tx - Set VF rx tx 834 * @adapter: Pointer to adapter struct 835 * @vf: VF identifier 836 * 837 * Set or reset correct transmit and receive for vf 838 **/ 839static void ixgbe_set_vf_rx_tx(struct ixgbe_adapter *adapter, int vf) 840{ 841 u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx; 842 struct ixgbe_hw *hw = &adapter->hw; 843 u32 reg_offset, vf_shift; 844 845 vf_shift = vf % 32; 846 reg_offset = vf / 32; 847 848 reg_cur_tx = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); 849 reg_cur_rx = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 850 851 if (adapter->vfinfo[vf].link_enable) { 852 reg_req_tx = reg_cur_tx | 1 << vf_shift; 853 reg_req_rx = reg_cur_rx | 1 << vf_shift; 854 } else { 855 reg_req_tx = reg_cur_tx & ~(1 << vf_shift); 856 reg_req_rx = reg_cur_rx & ~(1 << vf_shift); 857 } 858 859 /* The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. 860 * For more info take a look at ixgbe_set_vf_lpe 861 */ 862 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 863 struct net_device *dev = adapter->netdev; 864 int pf_max_frame = dev->mtu + ETH_HLEN; 865 866#if IS_ENABLED(CONFIG_FCOE) 867 if (dev->fcoe_mtu) 868 pf_max_frame = max_t(int, pf_max_frame, 869 IXGBE_FCOE_JUMBO_FRAME_SIZE); 870#endif /* CONFIG_FCOE */ 871 872 if (pf_max_frame > ETH_FRAME_LEN) 873 reg_req_rx = reg_cur_rx & ~(1 << vf_shift); 874 } 875 876 /* Enable/Disable particular VF */ 877 if (reg_cur_tx != reg_req_tx) 878 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg_req_tx); 879 if (reg_cur_rx != reg_req_rx) 880 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg_req_rx); 881} 882 883static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) 884{ 885 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 886 struct ixgbe_hw *hw = &adapter->hw; 887 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; 888 u32 reg, reg_offset, vf_shift; 889 u32 msgbuf[4] = {0, 0, 0, 0}; 890 u8 *addr = (u8 *)(&msgbuf[1]); 891 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 892 int i; 893 894 e_info(probe, "VF Reset msg received from vf %d\n", vf); 895 896 /* reset the filters for the device */ 897 ixgbe_vf_reset_event(adapter, vf); 898 899 ixgbe_vf_clear_mbx(adapter, vf); 900 901 /* set vf mac address */ 902 if (!is_zero_ether_addr(vf_mac)) 903 ixgbe_set_vf_mac(adapter, vf, vf_mac); 904 905 vf_shift = vf % 32; 906 reg_offset = vf / 32; 907 908 /* force drop enable for all VF Rx queues */ 909 reg = IXGBE_QDE_ENABLE; 910 if (adapter->vfinfo[vf].pf_vlan) 911 reg |= IXGBE_QDE_HIDE_VLAN; 912 913 ixgbe_write_qde(adapter, vf, reg); 914 915 ixgbe_set_vf_rx_tx(adapter, vf); 916 917 /* enable VF mailbox for further messages */ 918 adapter->vfinfo[vf].clear_to_send = true; 919 920 /* Enable counting of spoofed packets in the SSVPC register */ 921 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); 922 reg |= BIT(vf_shift); 923 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); 924 925 /* 926 * Reset the VFs TDWBAL and TDWBAH registers 927 * which are not cleared by an FLR 928 */ 929 for (i = 0; i < q_per_pool; i++) { 930 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0); 931 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0); 932 } 933 934 /* reply to reset with ack and vf mac address */ 935 msgbuf[0] = IXGBE_VF_RESET; 936 if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) { 937 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 938 memcpy(addr, vf_mac, ETH_ALEN); 939 } else { 940 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 941 } 942 943 /* 944 * Piggyback the multicast filter type so VF can compute the 945 * correct vectors 946 */ 947 msgbuf[3] = hw->mac.mc_filter_type; 948 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); 949 950 return 0; 951} 952 953static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, 954 u32 *msgbuf, u32 vf) 955{ 956 u8 *new_mac = ((u8 *)(&msgbuf[1])); 957 958 if (!is_valid_ether_addr(new_mac)) { 959 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 960 return -1; 961 } 962 963 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted && 964 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) { 965 e_warn(drv, 966 "VF %d attempted to override administratively set MAC address\n" 967 "Reload the VF driver to resume operations\n", 968 vf); 969 return -1; 970 } 971 972 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0; 973} 974 975static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, 976 u32 *msgbuf, u32 vf) 977{ 978 u32 add = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]); 979 u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); 980 u8 tcs = adapter->hw_tcs; 981 982 if (adapter->vfinfo[vf].pf_vlan || tcs) { 983 e_warn(drv, 984 "VF %d attempted to override administratively set VLAN configuration\n" 985 "Reload the VF driver to resume operations\n", 986 vf); 987 return -1; 988 } 989 990 /* VLAN 0 is a special case, don't allow it to be removed */ 991 if (!vid && !add) 992 return 0; 993 994 return ixgbe_set_vf_vlan(adapter, add, vid, vf); 995} 996 997static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, 998 u32 *msgbuf, u32 vf) 999{ 1000 u8 *new_mac = ((u8 *)(&msgbuf[1])); 1001 int index = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]); 1002 int err; 1003 1004 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted && 1005 index > 0) { 1006 e_warn(drv, 1007 "VF %d requested MACVLAN filter but is administratively denied\n", 1008 vf); 1009 return -1; 1010 } 1011 1012 /* An non-zero index indicates the VF is setting a filter */ 1013 if (index) { 1014 if (!is_valid_ether_addr(new_mac)) { 1015 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 1016 return -1; 1017 } 1018 1019 /* 1020 * If the VF is allowed to set MAC filters then turn off 1021 * anti-spoofing to avoid false positives. 1022 */ 1023 if (adapter->vfinfo[vf].spoofchk_enabled) { 1024 struct ixgbe_hw *hw = &adapter->hw; 1025 1026 hw->mac.ops.set_mac_anti_spoofing(hw, false, vf); 1027 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); 1028 } 1029 } 1030 1031 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); 1032 if (err == -ENOSPC) 1033 e_warn(drv, 1034 "VF %d has requested a MACVLAN filter but there is no space for it\n", 1035 vf); 1036 1037 return err < 0; 1038} 1039 1040static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, 1041 u32 *msgbuf, u32 vf) 1042{ 1043 int api = msgbuf[1]; 1044 1045 switch (api) { 1046 case ixgbe_mbox_api_10: 1047 case ixgbe_mbox_api_11: 1048 case ixgbe_mbox_api_12: 1049 case ixgbe_mbox_api_13: 1050 case ixgbe_mbox_api_14: 1051 case ixgbe_mbox_api_16: 1052 case ixgbe_mbox_api_17: 1053 adapter->vfinfo[vf].vf_api = api; 1054 return 0; 1055 default: 1056 break; 1057 } 1058 1059 e_dbg(drv, "VF %d requested unsupported api version %u\n", vf, api); 1060 1061 return -1; 1062} 1063 1064static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, 1065 u32 *msgbuf, u32 vf) 1066{ 1067 struct net_device *dev = adapter->netdev; 1068 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 1069 unsigned int default_tc = 0; 1070 u8 num_tcs = adapter->hw_tcs; 1071 1072 /* verify the PF is supporting the correct APIs */ 1073 switch (adapter->vfinfo[vf].vf_api) { 1074 case ixgbe_mbox_api_20: 1075 case ixgbe_mbox_api_11: 1076 case ixgbe_mbox_api_12: 1077 case ixgbe_mbox_api_13: 1078 case ixgbe_mbox_api_14: 1079 case ixgbe_mbox_api_16: 1080 case ixgbe_mbox_api_17: 1081 break; 1082 default: 1083 return -1; 1084 } 1085 1086 /* only allow 1 Tx queue for bandwidth limiting */ 1087 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 1088 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 1089 1090 /* if TCs > 1 determine which TC belongs to default user priority */ 1091 if (num_tcs > 1) 1092 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); 1093 1094 /* notify VF of need for VLAN tag stripping, and correct queue */ 1095 if (num_tcs) 1096 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; 1097 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) 1098 msgbuf[IXGBE_VF_TRANS_VLAN] = 1; 1099 else 1100 msgbuf[IXGBE_VF_TRANS_VLAN] = 0; 1101 1102 /* notify VF of default queue */ 1103 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; 1104 1105 return 0; 1106} 1107 1108static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) 1109{ 1110 u32 i, j; 1111 u32 *out_buf = &msgbuf[1]; 1112 const u8 *reta = adapter->rss_indir_tbl; 1113 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter); 1114 1115 /* Check if operation is permitted */ 1116 if (!adapter->vfinfo[vf].rss_query_enabled) 1117 return -EPERM; 1118 1119 /* verify the PF is supporting the correct API */ 1120 switch (adapter->vfinfo[vf].vf_api) { 1121 case ixgbe_mbox_api_17: 1122 case ixgbe_mbox_api_16: 1123 case ixgbe_mbox_api_14: 1124 case ixgbe_mbox_api_13: 1125 case ixgbe_mbox_api_12: 1126 break; 1127 default: 1128 return -EOPNOTSUPP; 1129 } 1130 1131 /* This mailbox command is supported (required) only for 82599 and x540 1132 * VFs which support up to 4 RSS queues. Therefore we will compress the 1133 * RETA by saving only 2 bits from each entry. This way we will be able 1134 * to transfer the whole RETA in a single mailbox operation. 1135 */ 1136 for (i = 0; i < reta_size / 16; i++) { 1137 out_buf[i] = 0; 1138 for (j = 0; j < 16; j++) 1139 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j); 1140 } 1141 1142 return 0; 1143} 1144 1145static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter, 1146 u32 *msgbuf, u32 vf) 1147{ 1148 u32 *rss_key = &msgbuf[1]; 1149 1150 /* Check if the operation is permitted */ 1151 if (!adapter->vfinfo[vf].rss_query_enabled) 1152 return -EPERM; 1153 1154 /* verify the PF is supporting the correct API */ 1155 switch (adapter->vfinfo[vf].vf_api) { 1156 case ixgbe_mbox_api_17: 1157 case ixgbe_mbox_api_16: 1158 case ixgbe_mbox_api_14: 1159 case ixgbe_mbox_api_13: 1160 case ixgbe_mbox_api_12: 1161 break; 1162 default: 1163 return -EOPNOTSUPP; 1164 } 1165 1166 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE); 1167 1168 return 0; 1169} 1170 1171static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter, 1172 u32 *msgbuf, u32 vf) 1173{ 1174 struct ixgbe_hw *hw = &adapter->hw; 1175 int xcast_mode = msgbuf[1]; 1176 u32 vmolr, fctrl, disable, enable; 1177 1178 /* verify the PF is supporting the correct APIs */ 1179 switch (adapter->vfinfo[vf].vf_api) { 1180 case ixgbe_mbox_api_12: 1181 /* promisc introduced in 1.3 version */ 1182 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC) 1183 return -EOPNOTSUPP; 1184 fallthrough; 1185 case ixgbe_mbox_api_13: 1186 case ixgbe_mbox_api_14: 1187 case ixgbe_mbox_api_16: 1188 case ixgbe_mbox_api_17: 1189 break; 1190 default: 1191 return -EOPNOTSUPP; 1192 } 1193 1194 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI && 1195 !adapter->vfinfo[vf].trusted) { 1196 xcast_mode = IXGBEVF_XCAST_MODE_MULTI; 1197 } 1198 1199 if (adapter->vfinfo[vf].xcast_mode == xcast_mode) 1200 goto out; 1201 1202 switch (xcast_mode) { 1203 case IXGBEVF_XCAST_MODE_NONE: 1204 disable = IXGBE_VMOLR_ROMPE | 1205 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE; 1206 enable = IXGBE_VMOLR_BAM; 1207 break; 1208 case IXGBEVF_XCAST_MODE_MULTI: 1209 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE; 1210 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE; 1211 break; 1212 case IXGBEVF_XCAST_MODE_ALLMULTI: 1213 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE; 1214 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE; 1215 break; 1216 case IXGBEVF_XCAST_MODE_PROMISC: 1217 if (hw->mac.type <= ixgbe_mac_82599EB) 1218 return -EOPNOTSUPP; 1219 1220 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); 1221 if (!(fctrl & IXGBE_FCTRL_UPE)) { 1222 /* VF promisc requires PF in promisc */ 1223 e_warn(drv, 1224 "Enabling VF promisc requires PF in promisc\n"); 1225 return -EPERM; 1226 } 1227 1228 disable = IXGBE_VMOLR_VPE; 1229 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | 1230 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE; 1231 break; 1232 default: 1233 return -EOPNOTSUPP; 1234 } 1235 1236 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); 1237 vmolr &= ~disable; 1238 vmolr |= enable; 1239 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); 1240 1241 adapter->vfinfo[vf].xcast_mode = xcast_mode; 1242 1243out: 1244 msgbuf[1] = xcast_mode; 1245 1246 return 0; 1247} 1248 1249static int ixgbe_get_vf_link_state(struct ixgbe_adapter *adapter, 1250 u32 *msgbuf, u32 vf) 1251{ 1252 u32 *link_state = &msgbuf[1]; 1253 1254 /* verify the PF is supporting the correct API */ 1255 switch (adapter->vfinfo[vf].vf_api) { 1256 case ixgbe_mbox_api_12: 1257 case ixgbe_mbox_api_13: 1258 case ixgbe_mbox_api_14: 1259 case ixgbe_mbox_api_16: 1260 case ixgbe_mbox_api_17: 1261 break; 1262 default: 1263 return -EOPNOTSUPP; 1264 } 1265 1266 *link_state = adapter->vfinfo[vf].link_enable; 1267 1268 return 0; 1269} 1270 1271/** 1272 * ixgbe_send_vf_link_status - send link status data to VF 1273 * @adapter: pointer to adapter struct 1274 * @msgbuf: pointer to message buffers 1275 * @vf: VF identifier 1276 * 1277 * Reply for IXGBE_VF_GET_PF_LINK_STATE mbox command sending link status data. 1278 * 1279 * Return: 0 on success or -EOPNOTSUPP when operation is not supported. 1280 */ 1281static int ixgbe_send_vf_link_status(struct ixgbe_adapter *adapter, 1282 u32 *msgbuf, u32 vf) 1283{ 1284 struct ixgbe_hw *hw = &adapter->hw; 1285 1286 switch (adapter->vfinfo[vf].vf_api) { 1287 case ixgbe_mbox_api_16: 1288 case ixgbe_mbox_api_17: 1289 if (hw->mac.type != ixgbe_mac_e610) 1290 return -EOPNOTSUPP; 1291 break; 1292 default: 1293 return -EOPNOTSUPP; 1294 } 1295 /* Simply provide stored values as watchdog & link status events take 1296 * care of its freshness. 1297 */ 1298 msgbuf[1] = adapter->link_speed; 1299 msgbuf[2] = adapter->link_up; 1300 1301 return 0; 1302} 1303 1304/** 1305 * ixgbe_negotiate_vf_features - negotiate supported features with VF driver 1306 * @adapter: pointer to adapter struct 1307 * @msgbuf: pointer to message buffers 1308 * @vf: VF identifier 1309 * 1310 * Return: 0 on success or -EOPNOTSUPP when operation is not supported. 1311 */ 1312static int ixgbe_negotiate_vf_features(struct ixgbe_adapter *adapter, 1313 u32 *msgbuf, u32 vf) 1314{ 1315 u32 features = msgbuf[1]; 1316 1317 switch (adapter->vfinfo[vf].vf_api) { 1318 case ixgbe_mbox_api_17: 1319 break; 1320 default: 1321 return -EOPNOTSUPP; 1322 } 1323 1324 features &= IXGBE_SUPPORTED_FEATURES; 1325 msgbuf[1] = features; 1326 1327 return 0; 1328} 1329 1330static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) 1331{ 1332 u32 mbx_size = IXGBE_VFMAILBOX_SIZE; 1333 u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; 1334 struct ixgbe_hw *hw = &adapter->hw; 1335 int retval; 1336 1337 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); 1338 1339 if (retval) { 1340 pr_err("Error receiving message from VF\n"); 1341 return retval; 1342 } 1343 1344 /* this is a message we already processed, do nothing */ 1345 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) 1346 return 0; 1347 1348 /* flush the ack before we write any messages back */ 1349 IXGBE_WRITE_FLUSH(hw); 1350 1351 if (msgbuf[0] == IXGBE_VF_RESET) 1352 return ixgbe_vf_reset_msg(adapter, vf); 1353 1354 /* 1355 * until the vf completes a virtual function reset it should not be 1356 * allowed to start any configuration. 1357 */ 1358 if (!adapter->vfinfo[vf].clear_to_send) { 1359 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 1360 ixgbe_write_mbx(hw, msgbuf, 1, vf); 1361 return 0; 1362 } 1363 1364 switch ((msgbuf[0] & 0xFFFF)) { 1365 case IXGBE_VF_SET_MAC_ADDR: 1366 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); 1367 break; 1368 case IXGBE_VF_SET_MULTICAST: 1369 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); 1370 break; 1371 case IXGBE_VF_SET_VLAN: 1372 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); 1373 break; 1374 case IXGBE_VF_SET_LPE: 1375 retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf); 1376 break; 1377 case IXGBE_VF_SET_MACVLAN: 1378 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); 1379 break; 1380 case IXGBE_VF_API_NEGOTIATE: 1381 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); 1382 break; 1383 case IXGBE_VF_GET_QUEUES: 1384 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); 1385 break; 1386 case IXGBE_VF_GET_RETA: 1387 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf); 1388 break; 1389 case IXGBE_VF_GET_RSS_KEY: 1390 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf); 1391 break; 1392 case IXGBE_VF_UPDATE_XCAST_MODE: 1393 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf); 1394 break; 1395 case IXGBE_VF_GET_LINK_STATE: 1396 retval = ixgbe_get_vf_link_state(adapter, msgbuf, vf); 1397 break; 1398 case IXGBE_VF_IPSEC_ADD: 1399 retval = ixgbe_ipsec_vf_add_sa(adapter, msgbuf, vf); 1400 break; 1401 case IXGBE_VF_IPSEC_DEL: 1402 retval = ixgbe_ipsec_vf_del_sa(adapter, msgbuf, vf); 1403 break; 1404 case IXGBE_VF_GET_PF_LINK_STATE: 1405 retval = ixgbe_send_vf_link_status(adapter, msgbuf, vf); 1406 break; 1407 case IXGBE_VF_FEATURES_NEGOTIATE: 1408 retval = ixgbe_negotiate_vf_features(adapter, msgbuf, vf); 1409 break; 1410 default: 1411 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); 1412 retval = -EIO; 1413 break; 1414 } 1415 1416 /* notify the VF of the results of what it sent us */ 1417 if (retval) 1418 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 1419 else 1420 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 1421 1422 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; 1423 1424 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); 1425 1426 return retval; 1427} 1428 1429static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) 1430{ 1431 struct ixgbe_hw *hw = &adapter->hw; 1432 u32 msg = IXGBE_VT_MSGTYPE_NACK; 1433 1434 /* if device isn't clear to send it shouldn't be reading either */ 1435 if (!adapter->vfinfo[vf].clear_to_send) 1436 ixgbe_write_mbx(hw, &msg, 1, vf); 1437} 1438 1439/** 1440 * ixgbe_check_mdd_event - check for MDD event on all VFs 1441 * @adapter: pointer to ixgbe adapter 1442 * 1443 * Return: true if there is a VF on which MDD event occurred, false otherwise. 1444 */ 1445bool ixgbe_check_mdd_event(struct ixgbe_adapter *adapter) 1446{ 1447 struct ixgbe_hw *hw = &adapter->hw; 1448 DECLARE_BITMAP(vf_bitmap, 64); 1449 bool ret = false; 1450 int i; 1451 1452 if (!hw->mac.ops.handle_mdd) 1453 return false; 1454 1455 /* Did we have a malicious event */ 1456 bitmap_zero(vf_bitmap, 64); 1457 hw->mac.ops.handle_mdd(hw, vf_bitmap); 1458 1459 /* Log any blocked queues and release lock */ 1460 for_each_set_bit(i, vf_bitmap, 64) { 1461 dev_warn(&adapter->pdev->dev, 1462 "Malicious event on VF %d tx:%x rx:%x\n", i, 1463 IXGBE_READ_REG(hw, IXGBE_LVMMC_TX), 1464 IXGBE_READ_REG(hw, IXGBE_LVMMC_RX)); 1465 1466 if (hw->mac.ops.restore_mdd_vf) { 1467 u32 ping; 1468 1469 hw->mac.ops.restore_mdd_vf(hw, i); 1470 1471 /* get the VF to rebuild its queues */ 1472 adapter->vfinfo[i].clear_to_send = 0; 1473 ping = IXGBE_PF_CONTROL_MSG | 1474 IXGBE_VT_MSGTYPE_CTS; 1475 ixgbe_write_mbx(hw, &ping, 1, i); 1476 } 1477 1478 ret = true; 1479 } 1480 1481 return ret; 1482} 1483 1484void ixgbe_msg_task(struct ixgbe_adapter *adapter) 1485{ 1486 struct ixgbe_hw *hw = &adapter->hw; 1487 unsigned long flags; 1488 u32 vf; 1489 1490 ixgbe_check_mdd_event(adapter); 1491 1492 spin_lock_irqsave(&adapter->vfs_lock, flags); 1493 for (vf = 0; vf < adapter->num_vfs; vf++) { 1494 /* process any reset requests */ 1495 if (!ixgbe_check_for_rst(hw, vf)) 1496 ixgbe_vf_reset_event(adapter, vf); 1497 1498 /* process any messages pending */ 1499 if (!ixgbe_check_for_msg(hw, vf)) 1500 ixgbe_rcv_msg_from_vf(adapter, vf); 1501 1502 /* process any acks */ 1503 if (!ixgbe_check_for_ack(hw, vf)) 1504 ixgbe_rcv_ack_from_vf(adapter, vf); 1505 } 1506 spin_unlock_irqrestore(&adapter->vfs_lock, flags); 1507} 1508 1509static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf) 1510{ 1511 struct ixgbe_hw *hw = &adapter->hw; 1512 u32 ping; 1513 1514 ping = IXGBE_PF_CONTROL_MSG; 1515 if (adapter->vfinfo[vf].clear_to_send) 1516 ping |= IXGBE_VT_MSGTYPE_CTS; 1517 ixgbe_write_mbx(hw, &ping, 1, vf); 1518} 1519 1520void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) 1521{ 1522 struct ixgbe_hw *hw = &adapter->hw; 1523 u32 ping; 1524 int i; 1525 1526 for (i = 0 ; i < adapter->num_vfs; i++) { 1527 ping = IXGBE_PF_CONTROL_MSG; 1528 if (adapter->vfinfo[i].clear_to_send) 1529 ping |= IXGBE_VT_MSGTYPE_CTS; 1530 ixgbe_write_mbx(hw, &ping, 1, i); 1531 } 1532} 1533 1534/** 1535 * ixgbe_set_all_vfs - update vfs queues 1536 * @adapter: Pointer to adapter struct 1537 * 1538 * Update setting transmit and receive queues for all vfs 1539 **/ 1540void ixgbe_set_all_vfs(struct ixgbe_adapter *adapter) 1541{ 1542 int i; 1543 1544 for (i = 0 ; i < adapter->num_vfs; i++) 1545 ixgbe_set_vf_link_state(adapter, i, 1546 adapter->vfinfo[i].link_state); 1547} 1548 1549int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) 1550{ 1551 struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); 1552 int retval; 1553 1554 if (vf >= adapter->num_vfs) 1555 return -EINVAL; 1556 1557 if (is_valid_ether_addr(mac)) { 1558 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", 1559 mac, vf); 1560 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective."); 1561 1562 retval = ixgbe_set_vf_mac(adapter, vf, mac); 1563 if (retval >= 0) { 1564 adapter->vfinfo[vf].pf_set_mac = true; 1565 1566 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1567 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n"); 1568 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n"); 1569 } 1570 } else { 1571 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n"); 1572 } 1573 } else if (is_zero_ether_addr(mac)) { 1574 unsigned char *vf_mac_addr = 1575 adapter->vfinfo[vf].vf_mac_addresses; 1576 1577 /* nothing to do */ 1578 if (is_zero_ether_addr(vf_mac_addr)) 1579 return 0; 1580 1581 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf); 1582 1583 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf); 1584 if (retval >= 0) { 1585 adapter->vfinfo[vf].pf_set_mac = false; 1586 memcpy(vf_mac_addr, mac, ETH_ALEN); 1587 } else { 1588 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n"); 1589 } 1590 } else { 1591 retval = -EINVAL; 1592 } 1593 1594 return retval; 1595} 1596 1597static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf, 1598 u16 vlan, u8 qos) 1599{ 1600 struct ixgbe_hw *hw = &adapter->hw; 1601 int err; 1602 1603 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); 1604 if (err) 1605 goto out; 1606 1607 /* Revoke tagless access via VLAN 0 */ 1608 ixgbe_set_vf_vlan(adapter, false, 0, vf); 1609 1610 ixgbe_set_vmvir(adapter, vlan, qos, vf); 1611 ixgbe_set_vmolr(hw, vf, false); 1612 1613 /* enable hide vlan on X550 */ 1614 if (hw->mac.type >= ixgbe_mac_X550) 1615 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE | 1616 IXGBE_QDE_HIDE_VLAN); 1617 1618 adapter->vfinfo[vf].pf_vlan = vlan; 1619 adapter->vfinfo[vf].pf_qos = qos; 1620 dev_info(&adapter->pdev->dev, 1621 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); 1622 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1623 dev_warn(&adapter->pdev->dev, 1624 "The VF VLAN has been set, but the PF device is not up.\n"); 1625 dev_warn(&adapter->pdev->dev, 1626 "Bring the PF device up before attempting to use the VF device.\n"); 1627 } 1628 1629out: 1630 return err; 1631} 1632 1633static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf) 1634{ 1635 struct ixgbe_hw *hw = &adapter->hw; 1636 int err; 1637 1638 err = ixgbe_set_vf_vlan(adapter, false, 1639 adapter->vfinfo[vf].pf_vlan, vf); 1640 /* Restore tagless access via VLAN 0 */ 1641 ixgbe_set_vf_vlan(adapter, true, 0, vf); 1642 ixgbe_clear_vmvir(adapter, vf); 1643 ixgbe_set_vmolr(hw, vf, true); 1644 1645 /* disable hide VLAN on X550 */ 1646 if (hw->mac.type >= ixgbe_mac_X550) 1647 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE); 1648 1649 adapter->vfinfo[vf].pf_vlan = 0; 1650 adapter->vfinfo[vf].pf_qos = 0; 1651 1652 return err; 1653} 1654 1655int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, 1656 u8 qos, __be16 vlan_proto) 1657{ 1658 int err = 0; 1659 struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); 1660 1661 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) 1662 return -EINVAL; 1663 if (vlan_proto != htons(ETH_P_8021Q)) 1664 return -EPROTONOSUPPORT; 1665 if (vlan || qos) { 1666 /* Check if there is already a port VLAN set, if so 1667 * we have to delete the old one first before we 1668 * can set the new one. The usage model had 1669 * previously assumed the user would delete the 1670 * old port VLAN before setting a new one but this 1671 * is not necessarily the case. 1672 */ 1673 if (adapter->vfinfo[vf].pf_vlan) 1674 err = ixgbe_disable_port_vlan(adapter, vf); 1675 if (err) 1676 goto out; 1677 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos); 1678 } else { 1679 err = ixgbe_disable_port_vlan(adapter, vf); 1680 } 1681 1682out: 1683 return err; 1684} 1685 1686int ixgbe_link_mbps(struct ixgbe_adapter *adapter) 1687{ 1688 switch (adapter->link_speed) { 1689 case IXGBE_LINK_SPEED_100_FULL: 1690 return 100; 1691 case IXGBE_LINK_SPEED_1GB_FULL: 1692 return 1000; 1693 case IXGBE_LINK_SPEED_10GB_FULL: 1694 return 10000; 1695 default: 1696 return 0; 1697 } 1698} 1699 1700static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) 1701{ 1702 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 1703 struct ixgbe_hw *hw = &adapter->hw; 1704 u32 bcnrc_val = 0; 1705 u16 queue, queues_per_pool; 1706 u16 tx_rate = adapter->vfinfo[vf].tx_rate; 1707 1708 if (tx_rate) { 1709 /* start with base link speed value */ 1710 bcnrc_val = adapter->vf_rate_link_speed; 1711 1712 /* Calculate the rate factor values to set */ 1713 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; 1714 bcnrc_val /= tx_rate; 1715 1716 /* clear everything but the rate factor */ 1717 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | 1718 IXGBE_RTTBCNRC_RF_DEC_MASK; 1719 1720 /* enable the rate scheduler */ 1721 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; 1722 } 1723 1724 /* 1725 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM 1726 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported 1727 * and 0x004 otherwise. 1728 */ 1729 switch (hw->mac.type) { 1730 case ixgbe_mac_82599EB: 1731 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); 1732 break; 1733 case ixgbe_mac_X540: 1734 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); 1735 break; 1736 default: 1737 break; 1738 } 1739 1740 /* determine how many queues per pool based on VMDq mask */ 1741 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 1742 1743 /* write value for all Tx queues belonging to VF */ 1744 for (queue = 0; queue < queues_per_pool; queue++) { 1745 unsigned int reg_idx = (vf * queues_per_pool) + queue; 1746 1747 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); 1748 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); 1749 } 1750} 1751 1752void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) 1753{ 1754 int i; 1755 1756 /* VF Tx rate limit was not set */ 1757 if (!adapter->vf_rate_link_speed) 1758 return; 1759 1760 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { 1761 adapter->vf_rate_link_speed = 0; 1762 dev_info(&adapter->pdev->dev, 1763 "Link speed has been changed. VF Transmit rate is disabled\n"); 1764 } 1765 1766 for (i = 0; i < adapter->num_vfs; i++) { 1767 if (!adapter->vf_rate_link_speed) 1768 adapter->vfinfo[i].tx_rate = 0; 1769 1770 ixgbe_set_vf_rate_limit(adapter, i); 1771 } 1772} 1773 1774int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate, 1775 int max_tx_rate) 1776{ 1777 struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); 1778 int link_speed; 1779 1780 /* verify VF is active */ 1781 if (vf >= adapter->num_vfs) 1782 return -EINVAL; 1783 1784 /* verify link is up */ 1785 if (!adapter->link_up) 1786 return -EINVAL; 1787 1788 /* verify we are linked at 10Gbps */ 1789 link_speed = ixgbe_link_mbps(adapter); 1790 if (link_speed != 10000) 1791 return -EINVAL; 1792 1793 if (min_tx_rate) 1794 return -EINVAL; 1795 1796 /* rate limit cannot be less than 10Mbs or greater than link speed */ 1797 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed))) 1798 return -EINVAL; 1799 1800 /* store values */ 1801 adapter->vf_rate_link_speed = link_speed; 1802 adapter->vfinfo[vf].tx_rate = max_tx_rate; 1803 1804 /* update hardware configuration */ 1805 ixgbe_set_vf_rate_limit(adapter, vf); 1806 1807 return 0; 1808} 1809 1810int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) 1811{ 1812 struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); 1813 struct ixgbe_hw *hw = &adapter->hw; 1814 1815 if (vf >= adapter->num_vfs) 1816 return -EINVAL; 1817 1818 adapter->vfinfo[vf].spoofchk_enabled = setting; 1819 1820 /* configure MAC spoofing */ 1821 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf); 1822 1823 /* configure VLAN spoofing */ 1824 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf); 1825 1826 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be 1827 * calling set_ethertype_anti_spoofing for each VF in loop below 1828 */ 1829 if (hw->mac.ops.set_ethertype_anti_spoofing) { 1830 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP), 1831 (IXGBE_ETQF_FILTER_EN | 1832 IXGBE_ETQF_TX_ANTISPOOF | 1833 ETH_P_LLDP)); 1834 1835 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC), 1836 (IXGBE_ETQF_FILTER_EN | 1837 IXGBE_ETQF_TX_ANTISPOOF | 1838 ETH_P_PAUSE)); 1839 1840 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf); 1841 } 1842 1843 return 0; 1844} 1845 1846/** 1847 * ixgbe_set_vf_link_state - Set link state 1848 * @adapter: Pointer to adapter struct 1849 * @vf: VF identifier 1850 * @state: required link state 1851 * 1852 * Set a link force state on/off a single vf 1853 **/ 1854void ixgbe_set_vf_link_state(struct ixgbe_adapter *adapter, int vf, int state) 1855{ 1856 adapter->vfinfo[vf].link_state = state; 1857 1858 switch (state) { 1859 case IFLA_VF_LINK_STATE_AUTO: 1860 if (test_bit(__IXGBE_DOWN, &adapter->state)) 1861 adapter->vfinfo[vf].link_enable = false; 1862 else 1863 adapter->vfinfo[vf].link_enable = true; 1864 break; 1865 case IFLA_VF_LINK_STATE_ENABLE: 1866 adapter->vfinfo[vf].link_enable = true; 1867 break; 1868 case IFLA_VF_LINK_STATE_DISABLE: 1869 adapter->vfinfo[vf].link_enable = false; 1870 break; 1871 } 1872 1873 ixgbe_set_vf_rx_tx(adapter, vf); 1874 1875 /* restart the VF */ 1876 adapter->vfinfo[vf].clear_to_send = false; 1877 ixgbe_ping_vf(adapter, vf); 1878} 1879 1880/** 1881 * ixgbe_ndo_set_vf_link_state - Set link state 1882 * @netdev: network interface device structure 1883 * @vf: VF identifier 1884 * @state: required link state 1885 * 1886 * Set the link state of a specified VF, regardless of physical link state 1887 **/ 1888int ixgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state) 1889{ 1890 struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); 1891 int ret = 0; 1892 1893 if (vf < 0 || vf >= adapter->num_vfs) { 1894 dev_err(&adapter->pdev->dev, 1895 "NDO set VF link - invalid VF identifier %d\n", vf); 1896 return -EINVAL; 1897 } 1898 1899 switch (state) { 1900 case IFLA_VF_LINK_STATE_ENABLE: 1901 dev_info(&adapter->pdev->dev, 1902 "NDO set VF %d link state %d - not supported\n", 1903 vf, state); 1904 break; 1905 case IFLA_VF_LINK_STATE_DISABLE: 1906 dev_info(&adapter->pdev->dev, 1907 "NDO set VF %d link state disable\n", vf); 1908 ixgbe_set_vf_link_state(adapter, vf, state); 1909 break; 1910 case IFLA_VF_LINK_STATE_AUTO: 1911 dev_info(&adapter->pdev->dev, 1912 "NDO set VF %d link state auto\n", vf); 1913 ixgbe_set_vf_link_state(adapter, vf, state); 1914 break; 1915 default: 1916 dev_err(&adapter->pdev->dev, 1917 "NDO set VF %d - invalid link state %d\n", vf, state); 1918 ret = -EINVAL; 1919 } 1920 1921 return ret; 1922} 1923 1924int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf, 1925 bool setting) 1926{ 1927 struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); 1928 1929 /* This operation is currently supported only for 82599 and x540 1930 * devices. 1931 */ 1932 if (adapter->hw.mac.type < ixgbe_mac_82599EB || 1933 adapter->hw.mac.type >= ixgbe_mac_X550) 1934 return -EOPNOTSUPP; 1935 1936 if (vf >= adapter->num_vfs) 1937 return -EINVAL; 1938 1939 adapter->vfinfo[vf].rss_query_enabled = setting; 1940 1941 return 0; 1942} 1943 1944int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting) 1945{ 1946 struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); 1947 1948 if (vf >= adapter->num_vfs) 1949 return -EINVAL; 1950 1951 /* nothing to do */ 1952 if (adapter->vfinfo[vf].trusted == setting) 1953 return 0; 1954 1955 adapter->vfinfo[vf].trusted = setting; 1956 1957 /* reset VF to reconfigure features */ 1958 adapter->vfinfo[vf].clear_to_send = false; 1959 ixgbe_ping_vf(adapter, vf); 1960 1961 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not "); 1962 1963 return 0; 1964} 1965 1966int ixgbe_ndo_get_vf_config(struct net_device *netdev, 1967 int vf, struct ifla_vf_info *ivi) 1968{ 1969 struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev); 1970 if (vf >= adapter->num_vfs) 1971 return -EINVAL; 1972 ivi->vf = vf; 1973 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); 1974 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate; 1975 ivi->min_tx_rate = 0; 1976 ivi->vlan = adapter->vfinfo[vf].pf_vlan; 1977 ivi->qos = adapter->vfinfo[vf].pf_qos; 1978 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; 1979 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled; 1980 ivi->trusted = adapter->vfinfo[vf].trusted; 1981 ivi->linkstate = adapter->vfinfo[vf].link_state; 1982 return 0; 1983}
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