1 /******************************************************************************* 2 3 Intel 10 Gigabit PCI Express Linux driver 4 Copyright(c) 1999 - 2013 Intel Corporation. 5 6 This program is free software; you can redistribute it and/or modify it 7 under the terms and conditions of the GNU General Public License, 8 version 2, as published by the Free Software Foundation. 9 10 This program is distributed in the hope it will be useful, but WITHOUT 11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 more details. 14 15 You should have received a copy of the GNU General Public License along with 16 this program; if not, write to the Free Software Foundation, Inc., 17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 18 19 The full GNU General Public License is included in this distribution in 20 the file called "COPYING". 21 22 Contact Information: 23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 25 26 *******************************************************************************/ 27 28 #include <linux/types.h> 29 #include <linux/module.h> 30 #include <linux/pci.h> 31 #include <linux/netdevice.h> 32 #include <linux/vmalloc.h> 33 #include <linux/string.h> 34 #include <linux/in.h> 35 #include <linux/ip.h> 36 #include <linux/tcp.h> 37 #include <linux/ipv6.h> 38 #ifdef NETIF_F_HW_VLAN_CTAG_TX 39 #include <linux/if_vlan.h> 40 #endif 41 42 #include "ixgbe.h" 43 #include "ixgbe_type.h" 44 #include "ixgbe_sriov.h" 45 46 #ifdef CONFIG_PCI_IOV 47 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter) 48 { 49 struct ixgbe_hw *hw = &adapter->hw; 50 int num_vf_macvlans, i; 51 struct vf_macvlans *mv_list; 52 53 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; 54 e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs); 55 56 /* Enable VMDq flag so device will be set in VM mode */ 57 adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED; 58 if (!adapter->ring_feature[RING_F_VMDQ].limit) 59 adapter->ring_feature[RING_F_VMDQ].limit = 1; 60 adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs; 61 62 num_vf_macvlans = hw->mac.num_rar_entries - 63 (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs); 64 65 adapter->mv_list = mv_list = kcalloc(num_vf_macvlans, 66 sizeof(struct vf_macvlans), 67 GFP_KERNEL); 68 if (mv_list) { 69 /* Initialize list of VF macvlans */ 70 INIT_LIST_HEAD(&adapter->vf_mvs.l); 71 for (i = 0; i < num_vf_macvlans; i++) { 72 mv_list->vf = -1; 73 mv_list->free = true; 74 mv_list->rar_entry = hw->mac.num_rar_entries - 75 (i + adapter->num_vfs + 1); 76 list_add(&mv_list->l, &adapter->vf_mvs.l); 77 mv_list++; 78 } 79 } 80 81 /* Initialize default switching mode VEB */ 82 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); 83 adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB; 84 85 /* If call to enable VFs succeeded then allocate memory 86 * for per VF control structures. 87 */ 88 adapter->vfinfo = 89 kcalloc(adapter->num_vfs, 90 sizeof(struct vf_data_storage), GFP_KERNEL); 91 if (adapter->vfinfo) { 92 /* limit trafffic classes based on VFs enabled */ 93 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && 94 (adapter->num_vfs < 16)) { 95 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; 96 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; 97 } else if (adapter->num_vfs < 32) { 98 adapter->dcb_cfg.num_tcs.pg_tcs = 4; 99 adapter->dcb_cfg.num_tcs.pfc_tcs = 4; 100 } else { 101 adapter->dcb_cfg.num_tcs.pg_tcs = 1; 102 adapter->dcb_cfg.num_tcs.pfc_tcs = 1; 103 } 104 105 /* We do not support RSS w/ SR-IOV */ 106 adapter->ring_feature[RING_F_RSS].limit = 1; 107 108 /* Disable RSC when in SR-IOV mode */ 109 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | 110 IXGBE_FLAG2_RSC_ENABLED); 111 112 /* enable spoof checking for all VFs */ 113 for (i = 0; i < adapter->num_vfs; i++) 114 adapter->vfinfo[i].spoofchk_enabled = true; 115 return 0; 116 } 117 118 return -ENOMEM; 119 } 120 121 /* Note this function is called when the user wants to enable SR-IOV 122 * VFs using the now deprecated module parameter 123 */ 124 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter) 125 { 126 int pre_existing_vfs = 0; 127 128 pre_existing_vfs = pci_num_vf(adapter->pdev); 129 if (!pre_existing_vfs && !adapter->num_vfs) 130 return; 131 132 /* If there are pre-existing VFs then we have to force 133 * use of that many - over ride any module parameter value. 134 * This may result from the user unloading the PF driver 135 * while VFs were assigned to guest VMs or because the VFs 136 * have been created via the new PCI SR-IOV sysfs interface. 137 */ 138 if (pre_existing_vfs) { 139 adapter->num_vfs = pre_existing_vfs; 140 dev_warn(&adapter->pdev->dev, 141 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n"); 142 } else { 143 int err; 144 /* 145 * The 82599 supports up to 64 VFs per physical function 146 * but this implementation limits allocation to 63 so that 147 * basic networking resources are still available to the 148 * physical function. If the user requests greater thn 149 * 63 VFs then it is an error - reset to default of zero. 150 */ 151 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, 63); 152 153 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); 154 if (err) { 155 e_err(probe, "Failed to enable PCI sriov: %d\n", err); 156 adapter->num_vfs = 0; 157 return; 158 } 159 } 160 161 if (!__ixgbe_enable_sriov(adapter)) 162 return; 163 164 /* If we have gotten to this point then there is no memory available 165 * to manage the VF devices - print message and bail. 166 */ 167 e_err(probe, "Unable to allocate memory for VF Data Storage - " 168 "SRIOV disabled\n"); 169 ixgbe_disable_sriov(adapter); 170 } 171 172 #endif /* #ifdef CONFIG_PCI_IOV */ 173 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) 174 { 175 struct ixgbe_hw *hw = &adapter->hw; 176 u32 gpie; 177 u32 vmdctl; 178 int rss; 179 180 /* set num VFs to 0 to prevent access to vfinfo */ 181 adapter->num_vfs = 0; 182 183 /* free VF control structures */ 184 kfree(adapter->vfinfo); 185 adapter->vfinfo = NULL; 186 187 /* free macvlan list */ 188 kfree(adapter->mv_list); 189 adapter->mv_list = NULL; 190 191 /* if SR-IOV is already disabled then there is nothing to do */ 192 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) 193 return 0; 194 195 #ifdef CONFIG_PCI_IOV 196 /* 197 * If our VFs are assigned we cannot shut down SR-IOV 198 * without causing issues, so just leave the hardware 199 * available but disabled 200 */ 201 if (pci_vfs_assigned(adapter->pdev)) { 202 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); 203 return -EPERM; 204 } 205 /* disable iov and allow time for transactions to clear */ 206 pci_disable_sriov(adapter->pdev); 207 #endif 208 209 /* turn off device IOV mode */ 210 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); 211 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); 212 gpie &= ~IXGBE_GPIE_VTMODE_MASK; 213 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); 214 215 /* set default pool back to 0 */ 216 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); 217 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; 218 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); 219 IXGBE_WRITE_FLUSH(hw); 220 221 /* Disable VMDq flag so device will be set in VM mode */ 222 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) { 223 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; 224 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; 225 rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); 226 } else { 227 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus()); 228 } 229 230 adapter->ring_feature[RING_F_VMDQ].offset = 0; 231 adapter->ring_feature[RING_F_RSS].limit = rss; 232 233 /* take a breather then clean up driver data */ 234 msleep(100); 235 return 0; 236 } 237 238 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) 239 { 240 #ifdef CONFIG_PCI_IOV 241 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 242 int err = 0; 243 int i; 244 int pre_existing_vfs = pci_num_vf(dev); 245 246 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 247 err = ixgbe_disable_sriov(adapter); 248 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 249 goto out; 250 251 if (err) 252 goto err_out; 253 254 /* While the SR-IOV capability structure reports total VFs to be 255 * 64 we limit the actual number that can be allocated to 63 so 256 * that some transmit/receive resources can be reserved to the 257 * PF. The PCI bus driver already checks for other values out of 258 * range. 259 */ 260 if (num_vfs > 63) { 261 err = -EPERM; 262 goto err_out; 263 } 264 265 adapter->num_vfs = num_vfs; 266 267 err = __ixgbe_enable_sriov(adapter); 268 if (err) 269 goto err_out; 270 271 for (i = 0; i < adapter->num_vfs; i++) 272 ixgbe_vf_configuration(dev, (i | 0x10000000)); 273 274 err = pci_enable_sriov(dev, num_vfs); 275 if (err) { 276 e_dev_warn("Failed to enable PCI sriov: %d\n", err); 277 goto err_out; 278 } 279 ixgbe_sriov_reinit(adapter); 280 281 out: 282 return num_vfs; 283 284 err_out: 285 return err; 286 #endif 287 return 0; 288 } 289 290 static int ixgbe_pci_sriov_disable(struct pci_dev *dev) 291 { 292 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 293 int err; 294 u32 current_flags = adapter->flags; 295 296 err = ixgbe_disable_sriov(adapter); 297 298 /* Only reinit if no error and state changed */ 299 #ifdef CONFIG_PCI_IOV 300 if (!err && current_flags != adapter->flags) 301 ixgbe_sriov_reinit(adapter); 302 #endif 303 304 return err; 305 } 306 307 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs) 308 { 309 if (num_vfs == 0) 310 return ixgbe_pci_sriov_disable(dev); 311 else 312 return ixgbe_pci_sriov_enable(dev, num_vfs); 313 } 314 315 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, 316 u32 *msgbuf, u32 vf) 317 { 318 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) 319 >> IXGBE_VT_MSGINFO_SHIFT; 320 u16 *hash_list = (u16 *)&msgbuf[1]; 321 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 322 struct ixgbe_hw *hw = &adapter->hw; 323 int i; 324 u32 vector_bit; 325 u32 vector_reg; 326 u32 mta_reg; 327 328 /* only so many hash values supported */ 329 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); 330 331 /* 332 * salt away the number of multi cast addresses assigned 333 * to this VF for later use to restore when the PF multi cast 334 * list changes 335 */ 336 vfinfo->num_vf_mc_hashes = entries; 337 338 /* 339 * VFs are limited to using the MTA hash table for their multicast 340 * addresses 341 */ 342 for (i = 0; i < entries; i++) { 343 vfinfo->vf_mc_hashes[i] = hash_list[i]; 344 } 345 346 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { 347 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; 348 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; 349 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 350 mta_reg |= (1 << vector_bit); 351 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 352 } 353 354 return 0; 355 } 356 357 static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) 358 { 359 struct ixgbe_hw *hw = &adapter->hw; 360 struct list_head *pos; 361 struct vf_macvlans *entry; 362 363 list_for_each(pos, &adapter->vf_mvs.l) { 364 entry = list_entry(pos, struct vf_macvlans, l); 365 if (!entry->free) 366 hw->mac.ops.set_rar(hw, entry->rar_entry, 367 entry->vf_macvlan, 368 entry->vf, IXGBE_RAH_AV); 369 } 370 } 371 372 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) 373 { 374 struct ixgbe_hw *hw = &adapter->hw; 375 struct vf_data_storage *vfinfo; 376 int i, j; 377 u32 vector_bit; 378 u32 vector_reg; 379 u32 mta_reg; 380 381 for (i = 0; i < adapter->num_vfs; i++) { 382 vfinfo = &adapter->vfinfo[i]; 383 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { 384 hw->addr_ctrl.mta_in_use++; 385 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; 386 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; 387 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 388 mta_reg |= (1 << vector_bit); 389 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 390 } 391 } 392 393 /* Restore any VF macvlans */ 394 ixgbe_restore_vf_macvlans(adapter); 395 } 396 397 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, 398 u32 vf) 399 { 400 /* VLAN 0 is a special case, don't allow it to be removed */ 401 if (!vid && !add) 402 return 0; 403 404 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); 405 } 406 407 static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) 408 { 409 struct ixgbe_hw *hw = &adapter->hw; 410 int max_frame = msgbuf[1]; 411 u32 max_frs; 412 413 /* 414 * For 82599EB we have to keep all PFs and VFs operating with 415 * the same max_frame value in order to avoid sending an oversize 416 * frame to a VF. In order to guarantee this is handled correctly 417 * for all cases we have several special exceptions to take into 418 * account before we can enable the VF for receive 419 */ 420 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 421 struct net_device *dev = adapter->netdev; 422 int pf_max_frame = dev->mtu + ETH_HLEN; 423 u32 reg_offset, vf_shift, vfre; 424 s32 err = 0; 425 426 #ifdef CONFIG_FCOE 427 if (dev->features & NETIF_F_FCOE_MTU) 428 pf_max_frame = max_t(int, pf_max_frame, 429 IXGBE_FCOE_JUMBO_FRAME_SIZE); 430 431 #endif /* CONFIG_FCOE */ 432 switch (adapter->vfinfo[vf].vf_api) { 433 case ixgbe_mbox_api_11: 434 /* 435 * Version 1.1 supports jumbo frames on VFs if PF has 436 * jumbo frames enabled which means legacy VFs are 437 * disabled 438 */ 439 if (pf_max_frame > ETH_FRAME_LEN) 440 break; 441 default: 442 /* 443 * If the PF or VF are running w/ jumbo frames enabled 444 * we need to shut down the VF Rx path as we cannot 445 * support jumbo frames on legacy VFs 446 */ 447 if ((pf_max_frame > ETH_FRAME_LEN) || 448 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) 449 err = -EINVAL; 450 break; 451 } 452 453 /* determine VF receive enable location */ 454 vf_shift = vf % 32; 455 reg_offset = vf / 32; 456 457 /* enable or disable receive depending on error */ 458 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 459 if (err) 460 vfre &= ~(1 << vf_shift); 461 else 462 vfre |= 1 << vf_shift; 463 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); 464 465 if (err) { 466 e_err(drv, "VF max_frame %d out of range\n", max_frame); 467 return err; 468 } 469 } 470 471 /* MTU < 68 is an error and causes problems on some kernels */ 472 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { 473 e_err(drv, "VF max_frame %d out of range\n", max_frame); 474 return -EINVAL; 475 } 476 477 /* pull current max frame size from hardware */ 478 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); 479 max_frs &= IXGBE_MHADD_MFS_MASK; 480 max_frs >>= IXGBE_MHADD_MFS_SHIFT; 481 482 if (max_frs < max_frame) { 483 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; 484 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); 485 } 486 487 e_info(hw, "VF requests change max MTU to %d\n", max_frame); 488 489 return 0; 490 } 491 492 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) 493 { 494 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); 495 vmolr |= (IXGBE_VMOLR_ROMPE | 496 IXGBE_VMOLR_BAM); 497 if (aupe) 498 vmolr |= IXGBE_VMOLR_AUPE; 499 else 500 vmolr &= ~IXGBE_VMOLR_AUPE; 501 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); 502 } 503 504 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) 505 { 506 struct ixgbe_hw *hw = &adapter->hw; 507 508 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); 509 } 510 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) 511 { 512 struct ixgbe_hw *hw = &adapter->hw; 513 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 514 int rar_entry = hw->mac.num_rar_entries - (vf + 1); 515 u8 num_tcs = netdev_get_num_tc(adapter->netdev); 516 517 /* add PF assigned VLAN or VLAN 0 */ 518 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); 519 520 /* reset offloads to defaults */ 521 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); 522 523 /* set outgoing tags for VFs */ 524 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { 525 ixgbe_clear_vmvir(adapter, vf); 526 } else { 527 if (vfinfo->pf_qos || !num_tcs) 528 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 529 vfinfo->pf_qos, vf); 530 else 531 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 532 adapter->default_up, vf); 533 534 if (vfinfo->spoofchk_enabled) 535 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 536 } 537 538 /* reset multicast table array for vf */ 539 adapter->vfinfo[vf].num_vf_mc_hashes = 0; 540 541 /* Flush and reset the mta with the new values */ 542 ixgbe_set_rx_mode(adapter->netdev); 543 544 hw->mac.ops.clear_rar(hw, rar_entry); 545 546 /* reset VF api back to unknown */ 547 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; 548 } 549 550 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, 551 int vf, unsigned char *mac_addr) 552 { 553 struct ixgbe_hw *hw = &adapter->hw; 554 int rar_entry = hw->mac.num_rar_entries - (vf + 1); 555 556 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN); 557 hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); 558 559 return 0; 560 } 561 562 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, 563 int vf, int index, unsigned char *mac_addr) 564 { 565 struct ixgbe_hw *hw = &adapter->hw; 566 struct list_head *pos; 567 struct vf_macvlans *entry; 568 569 if (index <= 1) { 570 list_for_each(pos, &adapter->vf_mvs.l) { 571 entry = list_entry(pos, struct vf_macvlans, l); 572 if (entry->vf == vf) { 573 entry->vf = -1; 574 entry->free = true; 575 entry->is_macvlan = false; 576 hw->mac.ops.clear_rar(hw, entry->rar_entry); 577 } 578 } 579 } 580 581 /* 582 * If index was zero then we were asked to clear the uc list 583 * for the VF. We're done. 584 */ 585 if (!index) 586 return 0; 587 588 entry = NULL; 589 590 list_for_each(pos, &adapter->vf_mvs.l) { 591 entry = list_entry(pos, struct vf_macvlans, l); 592 if (entry->free) 593 break; 594 } 595 596 /* 597 * If we traversed the entire list and didn't find a free entry 598 * then we're out of space on the RAR table. Also entry may 599 * be NULL because the original memory allocation for the list 600 * failed, which is not fatal but does mean we can't support 601 * VF requests for MACVLAN because we couldn't allocate 602 * memory for the list management required. 603 */ 604 if (!entry || !entry->free) 605 return -ENOSPC; 606 607 entry->free = false; 608 entry->is_macvlan = true; 609 entry->vf = vf; 610 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); 611 612 hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); 613 614 return 0; 615 } 616 617 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) 618 { 619 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); 620 unsigned int vfn = (event_mask & 0x3f); 621 622 bool enable = ((event_mask & 0x10000000U) != 0); 623 624 if (enable) 625 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses); 626 627 return 0; 628 } 629 630 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) 631 { 632 struct ixgbe_hw *hw = &adapter->hw; 633 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; 634 u32 reg, reg_offset, vf_shift; 635 u32 msgbuf[4] = {0, 0, 0, 0}; 636 u8 *addr = (u8 *)(&msgbuf[1]); 637 638 e_info(probe, "VF Reset msg received from vf %d\n", vf); 639 640 /* reset the filters for the device */ 641 ixgbe_vf_reset_event(adapter, vf); 642 643 /* set vf mac address */ 644 if (!is_zero_ether_addr(vf_mac)) 645 ixgbe_set_vf_mac(adapter, vf, vf_mac); 646 647 vf_shift = vf % 32; 648 reg_offset = vf / 32; 649 650 /* enable transmit for vf */ 651 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); 652 reg |= 1 << vf_shift; 653 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); 654 655 /* enable receive for vf */ 656 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 657 reg |= 1 << vf_shift; 658 /* 659 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. 660 * For more info take a look at ixgbe_set_vf_lpe 661 */ 662 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 663 struct net_device *dev = adapter->netdev; 664 int pf_max_frame = dev->mtu + ETH_HLEN; 665 666 #ifdef CONFIG_FCOE 667 if (dev->features & NETIF_F_FCOE_MTU) 668 pf_max_frame = max_t(int, pf_max_frame, 669 IXGBE_FCOE_JUMBO_FRAME_SIZE); 670 671 #endif /* CONFIG_FCOE */ 672 if (pf_max_frame > ETH_FRAME_LEN) 673 reg &= ~(1 << vf_shift); 674 } 675 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); 676 677 /* enable VF mailbox for further messages */ 678 adapter->vfinfo[vf].clear_to_send = true; 679 680 /* Enable counting of spoofed packets in the SSVPC register */ 681 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); 682 reg |= (1 << vf_shift); 683 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); 684 685 /* reply to reset with ack and vf mac address */ 686 msgbuf[0] = IXGBE_VF_RESET; 687 if (!is_zero_ether_addr(vf_mac)) { 688 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 689 memcpy(addr, vf_mac, ETH_ALEN); 690 } else { 691 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 692 dev_warn(&adapter->pdev->dev, 693 "VF %d has no MAC address assigned, you may have to assign one manually\n", 694 vf); 695 } 696 697 /* 698 * Piggyback the multicast filter type so VF can compute the 699 * correct vectors 700 */ 701 msgbuf[3] = hw->mac.mc_filter_type; 702 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); 703 704 return 0; 705 } 706 707 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, 708 u32 *msgbuf, u32 vf) 709 { 710 u8 *new_mac = ((u8 *)(&msgbuf[1])); 711 712 if (!is_valid_ether_addr(new_mac)) { 713 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 714 return -1; 715 } 716 717 if (adapter->vfinfo[vf].pf_set_mac && 718 memcmp(adapter->vfinfo[vf].vf_mac_addresses, new_mac, 719 ETH_ALEN)) { 720 e_warn(drv, 721 "VF %d attempted to override administratively set MAC address\n" 722 "Reload the VF driver to resume operations\n", 723 vf); 724 return -1; 725 } 726 727 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0; 728 } 729 730 static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan) 731 { 732 u32 vlvf; 733 s32 regindex; 734 735 /* short cut the special case */ 736 if (vlan == 0) 737 return 0; 738 739 /* Search for the vlan id in the VLVF entries */ 740 for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { 741 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); 742 if ((vlvf & VLAN_VID_MASK) == vlan) 743 break; 744 } 745 746 /* Return a negative value if not found */ 747 if (regindex >= IXGBE_VLVF_ENTRIES) 748 regindex = -1; 749 750 return regindex; 751 } 752 753 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, 754 u32 *msgbuf, u32 vf) 755 { 756 struct ixgbe_hw *hw = &adapter->hw; 757 int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT; 758 int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); 759 int err; 760 s32 reg_ndx; 761 u32 vlvf; 762 u32 bits; 763 u8 tcs = netdev_get_num_tc(adapter->netdev); 764 765 if (adapter->vfinfo[vf].pf_vlan || tcs) { 766 e_warn(drv, 767 "VF %d attempted to override administratively set VLAN configuration\n" 768 "Reload the VF driver to resume operations\n", 769 vf); 770 return -1; 771 } 772 773 if (add) 774 adapter->vfinfo[vf].vlan_count++; 775 else if (adapter->vfinfo[vf].vlan_count) 776 adapter->vfinfo[vf].vlan_count--; 777 778 /* in case of promiscuous mode any VLAN filter set for a VF must 779 * also have the PF pool added to it. 780 */ 781 if (add && adapter->netdev->flags & IFF_PROMISC) 782 err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); 783 784 err = ixgbe_set_vf_vlan(adapter, add, vid, vf); 785 if (!err && adapter->vfinfo[vf].spoofchk_enabled) 786 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 787 788 /* Go through all the checks to see if the VLAN filter should 789 * be wiped completely. 790 */ 791 if (!add && adapter->netdev->flags & IFF_PROMISC) { 792 reg_ndx = ixgbe_find_vlvf_entry(hw, vid); 793 if (reg_ndx < 0) 794 goto out; 795 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx)); 796 /* See if any other pools are set for this VLAN filter 797 * entry other than the PF. 798 */ 799 if (VMDQ_P(0) < 32) { 800 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); 801 bits &= ~(1 << VMDQ_P(0)); 802 bits |= IXGBE_READ_REG(hw, 803 IXGBE_VLVFB(reg_ndx * 2) + 1); 804 } else { 805 bits = IXGBE_READ_REG(hw, 806 IXGBE_VLVFB(reg_ndx * 2) + 1); 807 bits &= ~(1 << (VMDQ_P(0) - 32)); 808 bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); 809 } 810 811 /* If the filter was removed then ensure PF pool bit 812 * is cleared if the PF only added itself to the pool 813 * because the PF is in promiscuous mode. 814 */ 815 if ((vlvf & VLAN_VID_MASK) == vid && 816 !test_bit(vid, adapter->active_vlans) && !bits) 817 ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); 818 } 819 820 out: 821 822 return err; 823 } 824 825 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, 826 u32 *msgbuf, u32 vf) 827 { 828 u8 *new_mac = ((u8 *)(&msgbuf[1])); 829 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> 830 IXGBE_VT_MSGINFO_SHIFT; 831 int err; 832 833 if (adapter->vfinfo[vf].pf_set_mac && index > 0) { 834 e_warn(drv, 835 "VF %d requested MACVLAN filter but is administratively denied\n", 836 vf); 837 return -1; 838 } 839 840 /* An non-zero index indicates the VF is setting a filter */ 841 if (index) { 842 if (!is_valid_ether_addr(new_mac)) { 843 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 844 return -1; 845 } 846 847 /* 848 * If the VF is allowed to set MAC filters then turn off 849 * anti-spoofing to avoid false positives. 850 */ 851 if (adapter->vfinfo[vf].spoofchk_enabled) 852 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); 853 } 854 855 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); 856 if (err == -ENOSPC) 857 e_warn(drv, 858 "VF %d has requested a MACVLAN filter but there is no space for it\n", 859 vf); 860 861 return err < 0; 862 } 863 864 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, 865 u32 *msgbuf, u32 vf) 866 { 867 int api = msgbuf[1]; 868 869 switch (api) { 870 case ixgbe_mbox_api_10: 871 case ixgbe_mbox_api_11: 872 adapter->vfinfo[vf].vf_api = api; 873 return 0; 874 default: 875 break; 876 } 877 878 e_info(drv, "VF %d requested invalid api version %u\n", vf, api); 879 880 return -1; 881 } 882 883 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, 884 u32 *msgbuf, u32 vf) 885 { 886 struct net_device *dev = adapter->netdev; 887 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 888 unsigned int default_tc = 0; 889 u8 num_tcs = netdev_get_num_tc(dev); 890 891 /* verify the PF is supporting the correct APIs */ 892 switch (adapter->vfinfo[vf].vf_api) { 893 case ixgbe_mbox_api_20: 894 case ixgbe_mbox_api_11: 895 break; 896 default: 897 return -1; 898 } 899 900 /* only allow 1 Tx queue for bandwidth limiting */ 901 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 902 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 903 904 /* if TCs > 1 determine which TC belongs to default user priority */ 905 if (num_tcs > 1) 906 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); 907 908 /* notify VF of need for VLAN tag stripping, and correct queue */ 909 if (num_tcs) 910 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; 911 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) 912 msgbuf[IXGBE_VF_TRANS_VLAN] = 1; 913 else 914 msgbuf[IXGBE_VF_TRANS_VLAN] = 0; 915 916 /* notify VF of default queue */ 917 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; 918 919 return 0; 920 } 921 922 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) 923 { 924 u32 mbx_size = IXGBE_VFMAILBOX_SIZE; 925 u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; 926 struct ixgbe_hw *hw = &adapter->hw; 927 s32 retval; 928 929 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); 930 931 if (retval) { 932 pr_err("Error receiving message from VF\n"); 933 return retval; 934 } 935 936 /* this is a message we already processed, do nothing */ 937 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) 938 return retval; 939 940 /* flush the ack before we write any messages back */ 941 IXGBE_WRITE_FLUSH(hw); 942 943 if (msgbuf[0] == IXGBE_VF_RESET) 944 return ixgbe_vf_reset_msg(adapter, vf); 945 946 /* 947 * until the vf completes a virtual function reset it should not be 948 * allowed to start any configuration. 949 */ 950 if (!adapter->vfinfo[vf].clear_to_send) { 951 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 952 ixgbe_write_mbx(hw, msgbuf, 1, vf); 953 return retval; 954 } 955 956 switch ((msgbuf[0] & 0xFFFF)) { 957 case IXGBE_VF_SET_MAC_ADDR: 958 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); 959 break; 960 case IXGBE_VF_SET_MULTICAST: 961 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); 962 break; 963 case IXGBE_VF_SET_VLAN: 964 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); 965 break; 966 case IXGBE_VF_SET_LPE: 967 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); 968 break; 969 case IXGBE_VF_SET_MACVLAN: 970 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); 971 break; 972 case IXGBE_VF_API_NEGOTIATE: 973 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); 974 break; 975 case IXGBE_VF_GET_QUEUES: 976 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); 977 break; 978 default: 979 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); 980 retval = IXGBE_ERR_MBX; 981 break; 982 } 983 984 /* notify the VF of the results of what it sent us */ 985 if (retval) 986 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 987 else 988 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 989 990 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; 991 992 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); 993 994 return retval; 995 } 996 997 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) 998 { 999 struct ixgbe_hw *hw = &adapter->hw; 1000 u32 msg = IXGBE_VT_MSGTYPE_NACK; 1001 1002 /* if device isn't clear to send it shouldn't be reading either */ 1003 if (!adapter->vfinfo[vf].clear_to_send) 1004 ixgbe_write_mbx(hw, &msg, 1, vf); 1005 } 1006 1007 void ixgbe_msg_task(struct ixgbe_adapter *adapter) 1008 { 1009 struct ixgbe_hw *hw = &adapter->hw; 1010 u32 vf; 1011 1012 for (vf = 0; vf < adapter->num_vfs; vf++) { 1013 /* process any reset requests */ 1014 if (!ixgbe_check_for_rst(hw, vf)) 1015 ixgbe_vf_reset_event(adapter, vf); 1016 1017 /* process any messages pending */ 1018 if (!ixgbe_check_for_msg(hw, vf)) 1019 ixgbe_rcv_msg_from_vf(adapter, vf); 1020 1021 /* process any acks */ 1022 if (!ixgbe_check_for_ack(hw, vf)) 1023 ixgbe_rcv_ack_from_vf(adapter, vf); 1024 } 1025 } 1026 1027 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) 1028 { 1029 struct ixgbe_hw *hw = &adapter->hw; 1030 1031 /* disable transmit and receive for all vfs */ 1032 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); 1033 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); 1034 1035 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); 1036 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); 1037 } 1038 1039 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) 1040 { 1041 struct ixgbe_hw *hw = &adapter->hw; 1042 u32 ping; 1043 int i; 1044 1045 for (i = 0 ; i < adapter->num_vfs; i++) { 1046 ping = IXGBE_PF_CONTROL_MSG; 1047 if (adapter->vfinfo[i].clear_to_send) 1048 ping |= IXGBE_VT_MSGTYPE_CTS; 1049 ixgbe_write_mbx(hw, &ping, 1, i); 1050 } 1051 } 1052 1053 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) 1054 { 1055 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1056 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) 1057 return -EINVAL; 1058 adapter->vfinfo[vf].pf_set_mac = true; 1059 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); 1060 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" 1061 " change effective."); 1062 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1063 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," 1064 " but the PF device is not up.\n"); 1065 dev_warn(&adapter->pdev->dev, "Bring the PF device up before" 1066 " attempting to use the VF device.\n"); 1067 } 1068 return ixgbe_set_vf_mac(adapter, vf, mac); 1069 } 1070 1071 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) 1072 { 1073 int err = 0; 1074 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1075 struct ixgbe_hw *hw = &adapter->hw; 1076 1077 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) 1078 return -EINVAL; 1079 if (vlan || qos) { 1080 if (adapter->vfinfo[vf].pf_vlan) 1081 err = ixgbe_set_vf_vlan(adapter, false, 1082 adapter->vfinfo[vf].pf_vlan, 1083 vf); 1084 if (err) 1085 goto out; 1086 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); 1087 if (err) 1088 goto out; 1089 ixgbe_set_vmvir(adapter, vlan, qos, vf); 1090 ixgbe_set_vmolr(hw, vf, false); 1091 if (adapter->vfinfo[vf].spoofchk_enabled) 1092 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 1093 adapter->vfinfo[vf].vlan_count++; 1094 adapter->vfinfo[vf].pf_vlan = vlan; 1095 adapter->vfinfo[vf].pf_qos = qos; 1096 dev_info(&adapter->pdev->dev, 1097 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); 1098 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1099 dev_warn(&adapter->pdev->dev, 1100 "The VF VLAN has been set," 1101 " but the PF device is not up.\n"); 1102 dev_warn(&adapter->pdev->dev, 1103 "Bring the PF device up before" 1104 " attempting to use the VF device.\n"); 1105 } 1106 } else { 1107 err = ixgbe_set_vf_vlan(adapter, false, 1108 adapter->vfinfo[vf].pf_vlan, vf); 1109 ixgbe_clear_vmvir(adapter, vf); 1110 ixgbe_set_vmolr(hw, vf, true); 1111 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); 1112 if (adapter->vfinfo[vf].vlan_count) 1113 adapter->vfinfo[vf].vlan_count--; 1114 adapter->vfinfo[vf].pf_vlan = 0; 1115 adapter->vfinfo[vf].pf_qos = 0; 1116 } 1117 out: 1118 return err; 1119 } 1120 1121 static int ixgbe_link_mbps(struct ixgbe_adapter *adapter) 1122 { 1123 switch (adapter->link_speed) { 1124 case IXGBE_LINK_SPEED_100_FULL: 1125 return 100; 1126 case IXGBE_LINK_SPEED_1GB_FULL: 1127 return 1000; 1128 case IXGBE_LINK_SPEED_10GB_FULL: 1129 return 10000; 1130 default: 1131 return 0; 1132 } 1133 } 1134 1135 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) 1136 { 1137 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 1138 struct ixgbe_hw *hw = &adapter->hw; 1139 u32 bcnrc_val = 0; 1140 u16 queue, queues_per_pool; 1141 u16 tx_rate = adapter->vfinfo[vf].tx_rate; 1142 1143 if (tx_rate) { 1144 /* start with base link speed value */ 1145 bcnrc_val = adapter->vf_rate_link_speed; 1146 1147 /* Calculate the rate factor values to set */ 1148 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; 1149 bcnrc_val /= tx_rate; 1150 1151 /* clear everything but the rate factor */ 1152 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | 1153 IXGBE_RTTBCNRC_RF_DEC_MASK; 1154 1155 /* enable the rate scheduler */ 1156 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; 1157 } 1158 1159 /* 1160 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM 1161 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported 1162 * and 0x004 otherwise. 1163 */ 1164 switch (hw->mac.type) { 1165 case ixgbe_mac_82599EB: 1166 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); 1167 break; 1168 case ixgbe_mac_X540: 1169 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); 1170 break; 1171 default: 1172 break; 1173 } 1174 1175 /* determine how many queues per pool based on VMDq mask */ 1176 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 1177 1178 /* write value for all Tx queues belonging to VF */ 1179 for (queue = 0; queue < queues_per_pool; queue++) { 1180 unsigned int reg_idx = (vf * queues_per_pool) + queue; 1181 1182 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); 1183 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); 1184 } 1185 } 1186 1187 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) 1188 { 1189 int i; 1190 1191 /* VF Tx rate limit was not set */ 1192 if (!adapter->vf_rate_link_speed) 1193 return; 1194 1195 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { 1196 adapter->vf_rate_link_speed = 0; 1197 dev_info(&adapter->pdev->dev, 1198 "Link speed has been changed. VF Transmit rate is disabled\n"); 1199 } 1200 1201 for (i = 0; i < adapter->num_vfs; i++) { 1202 if (!adapter->vf_rate_link_speed) 1203 adapter->vfinfo[i].tx_rate = 0; 1204 1205 ixgbe_set_vf_rate_limit(adapter, i); 1206 } 1207 } 1208 1209 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) 1210 { 1211 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1212 int link_speed; 1213 1214 /* verify VF is active */ 1215 if (vf >= adapter->num_vfs) 1216 return -EINVAL; 1217 1218 /* verify link is up */ 1219 if (!adapter->link_up) 1220 return -EINVAL; 1221 1222 /* verify we are linked at 10Gbps */ 1223 link_speed = ixgbe_link_mbps(adapter); 1224 if (link_speed != 10000) 1225 return -EINVAL; 1226 1227 /* rate limit cannot be less than 10Mbs or greater than link speed */ 1228 if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed))) 1229 return -EINVAL; 1230 1231 /* store values */ 1232 adapter->vf_rate_link_speed = link_speed; 1233 adapter->vfinfo[vf].tx_rate = tx_rate; 1234 1235 /* update hardware configuration */ 1236 ixgbe_set_vf_rate_limit(adapter, vf); 1237 1238 return 0; 1239 } 1240 1241 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) 1242 { 1243 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1244 int vf_target_reg = vf >> 3; 1245 int vf_target_shift = vf % 8; 1246 struct ixgbe_hw *hw = &adapter->hw; 1247 u32 regval; 1248 1249 adapter->vfinfo[vf].spoofchk_enabled = setting; 1250 1251 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); 1252 regval &= ~(1 << vf_target_shift); 1253 regval |= (setting << vf_target_shift); 1254 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); 1255 1256 if (adapter->vfinfo[vf].vlan_count) { 1257 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; 1258 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); 1259 regval &= ~(1 << vf_target_shift); 1260 regval |= (setting << vf_target_shift); 1261 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); 1262 } 1263 1264 return 0; 1265 } 1266 1267 int ixgbe_ndo_get_vf_config(struct net_device *netdev, 1268 int vf, struct ifla_vf_info *ivi) 1269 { 1270 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1271 if (vf >= adapter->num_vfs) 1272 return -EINVAL; 1273 ivi->vf = vf; 1274 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); 1275 ivi->tx_rate = adapter->vfinfo[vf].tx_rate; 1276 ivi->vlan = adapter->vfinfo[vf].pf_vlan; 1277 ivi->qos = adapter->vfinfo[vf].pf_qos; 1278 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; 1279 return 0; 1280 } 1281