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 (!pre_existing_vfs) 133 dev_warn(&adapter->pdev->dev, 134 "Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.\n"); 135 136 /* If there are pre-existing VFs then we have to force 137 * use of that many - over ride any module parameter value. 138 * This may result from the user unloading the PF driver 139 * while VFs were assigned to guest VMs or because the VFs 140 * have been created via the new PCI SR-IOV sysfs interface. 141 */ 142 if (pre_existing_vfs) { 143 adapter->num_vfs = pre_existing_vfs; 144 dev_warn(&adapter->pdev->dev, 145 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n"); 146 } else { 147 int err; 148 /* 149 * The 82599 supports up to 64 VFs per physical function 150 * but this implementation limits allocation to 63 so that 151 * basic networking resources are still available to the 152 * physical function. If the user requests greater thn 153 * 63 VFs then it is an error - reset to default of zero. 154 */ 155 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, 63); 156 157 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); 158 if (err) { 159 e_err(probe, "Failed to enable PCI sriov: %d\n", err); 160 adapter->num_vfs = 0; 161 return; 162 } 163 } 164 165 if (!__ixgbe_enable_sriov(adapter)) 166 return; 167 168 /* If we have gotten to this point then there is no memory available 169 * to manage the VF devices - print message and bail. 170 */ 171 e_err(probe, "Unable to allocate memory for VF Data Storage - " 172 "SRIOV disabled\n"); 173 ixgbe_disable_sriov(adapter); 174 } 175 176 #endif /* #ifdef CONFIG_PCI_IOV */ 177 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) 178 { 179 struct ixgbe_hw *hw = &adapter->hw; 180 u32 gpie; 181 u32 vmdctl; 182 int rss; 183 184 /* set num VFs to 0 to prevent access to vfinfo */ 185 adapter->num_vfs = 0; 186 187 /* free VF control structures */ 188 kfree(adapter->vfinfo); 189 adapter->vfinfo = NULL; 190 191 /* free macvlan list */ 192 kfree(adapter->mv_list); 193 adapter->mv_list = NULL; 194 195 /* if SR-IOV is already disabled then there is nothing to do */ 196 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) 197 return 0; 198 199 #ifdef CONFIG_PCI_IOV 200 /* 201 * If our VFs are assigned we cannot shut down SR-IOV 202 * without causing issues, so just leave the hardware 203 * available but disabled 204 */ 205 if (pci_vfs_assigned(adapter->pdev)) { 206 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); 207 return -EPERM; 208 } 209 /* disable iov and allow time for transactions to clear */ 210 pci_disable_sriov(adapter->pdev); 211 #endif 212 213 /* turn off device IOV mode */ 214 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); 215 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); 216 gpie &= ~IXGBE_GPIE_VTMODE_MASK; 217 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); 218 219 /* set default pool back to 0 */ 220 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); 221 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; 222 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); 223 IXGBE_WRITE_FLUSH(hw); 224 225 /* Disable VMDq flag so device will be set in VM mode */ 226 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) 227 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; 228 adapter->ring_feature[RING_F_VMDQ].offset = 0; 229 230 rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); 231 adapter->ring_feature[RING_F_RSS].limit = rss; 232 233 /* take a breather then clean up driver data */ 234 msleep(100); 235 236 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; 237 return 0; 238 } 239 240 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) 241 { 242 #ifdef CONFIG_PCI_IOV 243 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 244 int err = 0; 245 int i; 246 int pre_existing_vfs = pci_num_vf(dev); 247 248 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 249 err = ixgbe_disable_sriov(adapter); 250 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 251 goto out; 252 253 if (err) 254 goto err_out; 255 256 /* While the SR-IOV capability structure reports total VFs to be 257 * 64 we limit the actual number that can be allocated to 63 so 258 * that some transmit/receive resources can be reserved to the 259 * PF. The PCI bus driver already checks for other values out of 260 * range. 261 */ 262 if (num_vfs > 63) { 263 err = -EPERM; 264 goto err_out; 265 } 266 267 adapter->num_vfs = num_vfs; 268 269 err = __ixgbe_enable_sriov(adapter); 270 if (err) 271 goto err_out; 272 273 for (i = 0; i < adapter->num_vfs; i++) 274 ixgbe_vf_configuration(dev, (i | 0x10000000)); 275 276 err = pci_enable_sriov(dev, num_vfs); 277 if (err) { 278 e_dev_warn("Failed to enable PCI sriov: %d\n", err); 279 goto err_out; 280 } 281 ixgbe_sriov_reinit(adapter); 282 283 out: 284 return num_vfs; 285 286 err_out: 287 return err; 288 #endif 289 return 0; 290 } 291 292 static int ixgbe_pci_sriov_disable(struct pci_dev *dev) 293 { 294 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 295 int err; 296 u32 current_flags = adapter->flags; 297 298 err = ixgbe_disable_sriov(adapter); 299 300 /* Only reinit if no error and state changed */ 301 if (!err && current_flags != adapter->flags) { 302 /* ixgbe_disable_sriov() doesn't clear VMDQ flag */ 303 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; 304 #ifdef CONFIG_PCI_IOV 305 ixgbe_sriov_reinit(adapter); 306 #endif 307 } 308 309 return err; 310 } 311 312 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs) 313 { 314 if (num_vfs == 0) 315 return ixgbe_pci_sriov_disable(dev); 316 else 317 return ixgbe_pci_sriov_enable(dev, num_vfs); 318 } 319 320 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, 321 u32 *msgbuf, u32 vf) 322 { 323 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) 324 >> IXGBE_VT_MSGINFO_SHIFT; 325 u16 *hash_list = (u16 *)&msgbuf[1]; 326 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 327 struct ixgbe_hw *hw = &adapter->hw; 328 int i; 329 u32 vector_bit; 330 u32 vector_reg; 331 u32 mta_reg; 332 333 /* only so many hash values supported */ 334 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); 335 336 /* 337 * salt away the number of multi cast addresses assigned 338 * to this VF for later use to restore when the PF multi cast 339 * list changes 340 */ 341 vfinfo->num_vf_mc_hashes = entries; 342 343 /* 344 * VFs are limited to using the MTA hash table for their multicast 345 * addresses 346 */ 347 for (i = 0; i < entries; i++) { 348 vfinfo->vf_mc_hashes[i] = hash_list[i]; 349 } 350 351 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { 352 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; 353 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; 354 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 355 mta_reg |= (1 << vector_bit); 356 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 357 } 358 359 return 0; 360 } 361 362 static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) 363 { 364 struct ixgbe_hw *hw = &adapter->hw; 365 struct list_head *pos; 366 struct vf_macvlans *entry; 367 368 list_for_each(pos, &adapter->vf_mvs.l) { 369 entry = list_entry(pos, struct vf_macvlans, l); 370 if (!entry->free) 371 hw->mac.ops.set_rar(hw, entry->rar_entry, 372 entry->vf_macvlan, 373 entry->vf, IXGBE_RAH_AV); 374 } 375 } 376 377 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) 378 { 379 struct ixgbe_hw *hw = &adapter->hw; 380 struct vf_data_storage *vfinfo; 381 int i, j; 382 u32 vector_bit; 383 u32 vector_reg; 384 u32 mta_reg; 385 386 for (i = 0; i < adapter->num_vfs; i++) { 387 vfinfo = &adapter->vfinfo[i]; 388 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { 389 hw->addr_ctrl.mta_in_use++; 390 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; 391 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; 392 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 393 mta_reg |= (1 << vector_bit); 394 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 395 } 396 } 397 398 /* Restore any VF macvlans */ 399 ixgbe_restore_vf_macvlans(adapter); 400 } 401 402 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, 403 u32 vf) 404 { 405 /* VLAN 0 is a special case, don't allow it to be removed */ 406 if (!vid && !add) 407 return 0; 408 409 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); 410 } 411 412 static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) 413 { 414 struct ixgbe_hw *hw = &adapter->hw; 415 int max_frame = msgbuf[1]; 416 u32 max_frs; 417 418 /* 419 * For 82599EB we have to keep all PFs and VFs operating with 420 * the same max_frame value in order to avoid sending an oversize 421 * frame to a VF. In order to guarantee this is handled correctly 422 * for all cases we have several special exceptions to take into 423 * account before we can enable the VF for receive 424 */ 425 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 426 struct net_device *dev = adapter->netdev; 427 int pf_max_frame = dev->mtu + ETH_HLEN; 428 u32 reg_offset, vf_shift, vfre; 429 s32 err = 0; 430 431 #ifdef CONFIG_FCOE 432 if (dev->features & NETIF_F_FCOE_MTU) 433 pf_max_frame = max_t(int, pf_max_frame, 434 IXGBE_FCOE_JUMBO_FRAME_SIZE); 435 436 #endif /* CONFIG_FCOE */ 437 switch (adapter->vfinfo[vf].vf_api) { 438 case ixgbe_mbox_api_11: 439 /* 440 * Version 1.1 supports jumbo frames on VFs if PF has 441 * jumbo frames enabled which means legacy VFs are 442 * disabled 443 */ 444 if (pf_max_frame > ETH_FRAME_LEN) 445 break; 446 default: 447 /* 448 * If the PF or VF are running w/ jumbo frames enabled 449 * we need to shut down the VF Rx path as we cannot 450 * support jumbo frames on legacy VFs 451 */ 452 if ((pf_max_frame > ETH_FRAME_LEN) || 453 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) 454 err = -EINVAL; 455 break; 456 } 457 458 /* determine VF receive enable location */ 459 vf_shift = vf % 32; 460 reg_offset = vf / 32; 461 462 /* enable or disable receive depending on error */ 463 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 464 if (err) 465 vfre &= ~(1 << vf_shift); 466 else 467 vfre |= 1 << vf_shift; 468 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); 469 470 if (err) { 471 e_err(drv, "VF max_frame %d out of range\n", max_frame); 472 return err; 473 } 474 } 475 476 /* MTU < 68 is an error and causes problems on some kernels */ 477 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { 478 e_err(drv, "VF max_frame %d out of range\n", max_frame); 479 return -EINVAL; 480 } 481 482 /* pull current max frame size from hardware */ 483 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); 484 max_frs &= IXGBE_MHADD_MFS_MASK; 485 max_frs >>= IXGBE_MHADD_MFS_SHIFT; 486 487 if (max_frs < max_frame) { 488 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; 489 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); 490 } 491 492 e_info(hw, "VF requests change max MTU to %d\n", max_frame); 493 494 return 0; 495 } 496 497 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) 498 { 499 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); 500 vmolr |= (IXGBE_VMOLR_ROMPE | 501 IXGBE_VMOLR_BAM); 502 if (aupe) 503 vmolr |= IXGBE_VMOLR_AUPE; 504 else 505 vmolr &= ~IXGBE_VMOLR_AUPE; 506 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); 507 } 508 509 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) 510 { 511 struct ixgbe_hw *hw = &adapter->hw; 512 513 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); 514 } 515 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) 516 { 517 struct ixgbe_hw *hw = &adapter->hw; 518 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 519 int rar_entry = hw->mac.num_rar_entries - (vf + 1); 520 u8 num_tcs = netdev_get_num_tc(adapter->netdev); 521 522 /* add PF assigned VLAN or VLAN 0 */ 523 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); 524 525 /* reset offloads to defaults */ 526 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); 527 528 /* set outgoing tags for VFs */ 529 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { 530 ixgbe_clear_vmvir(adapter, vf); 531 } else { 532 if (vfinfo->pf_qos || !num_tcs) 533 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 534 vfinfo->pf_qos, vf); 535 else 536 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 537 adapter->default_up, vf); 538 539 if (vfinfo->spoofchk_enabled) 540 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 541 } 542 543 /* reset multicast table array for vf */ 544 adapter->vfinfo[vf].num_vf_mc_hashes = 0; 545 546 /* Flush and reset the mta with the new values */ 547 ixgbe_set_rx_mode(adapter->netdev); 548 549 hw->mac.ops.clear_rar(hw, rar_entry); 550 551 /* reset VF api back to unknown */ 552 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; 553 } 554 555 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, 556 int vf, unsigned char *mac_addr) 557 { 558 struct ixgbe_hw *hw = &adapter->hw; 559 int rar_entry = hw->mac.num_rar_entries - (vf + 1); 560 561 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6); 562 hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); 563 564 return 0; 565 } 566 567 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, 568 int vf, int index, unsigned char *mac_addr) 569 { 570 struct ixgbe_hw *hw = &adapter->hw; 571 struct list_head *pos; 572 struct vf_macvlans *entry; 573 574 if (index <= 1) { 575 list_for_each(pos, &adapter->vf_mvs.l) { 576 entry = list_entry(pos, struct vf_macvlans, l); 577 if (entry->vf == vf) { 578 entry->vf = -1; 579 entry->free = true; 580 entry->is_macvlan = false; 581 hw->mac.ops.clear_rar(hw, entry->rar_entry); 582 } 583 } 584 } 585 586 /* 587 * If index was zero then we were asked to clear the uc list 588 * for the VF. We're done. 589 */ 590 if (!index) 591 return 0; 592 593 entry = NULL; 594 595 list_for_each(pos, &adapter->vf_mvs.l) { 596 entry = list_entry(pos, struct vf_macvlans, l); 597 if (entry->free) 598 break; 599 } 600 601 /* 602 * If we traversed the entire list and didn't find a free entry 603 * then we're out of space on the RAR table. Also entry may 604 * be NULL because the original memory allocation for the list 605 * failed, which is not fatal but does mean we can't support 606 * VF requests for MACVLAN because we couldn't allocate 607 * memory for the list management required. 608 */ 609 if (!entry || !entry->free) 610 return -ENOSPC; 611 612 entry->free = false; 613 entry->is_macvlan = true; 614 entry->vf = vf; 615 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); 616 617 hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); 618 619 return 0; 620 } 621 622 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) 623 { 624 unsigned char vf_mac_addr[6]; 625 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); 626 unsigned int vfn = (event_mask & 0x3f); 627 628 bool enable = ((event_mask & 0x10000000U) != 0); 629 630 if (enable) { 631 eth_zero_addr(vf_mac_addr); 632 memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6); 633 } 634 635 return 0; 636 } 637 638 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) 639 { 640 struct ixgbe_hw *hw = &adapter->hw; 641 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; 642 u32 reg, reg_offset, vf_shift; 643 u32 msgbuf[4] = {0, 0, 0, 0}; 644 u8 *addr = (u8 *)(&msgbuf[1]); 645 646 e_info(probe, "VF Reset msg received from vf %d\n", vf); 647 648 /* reset the filters for the device */ 649 ixgbe_vf_reset_event(adapter, vf); 650 651 /* set vf mac address */ 652 if (!is_zero_ether_addr(vf_mac)) 653 ixgbe_set_vf_mac(adapter, vf, vf_mac); 654 655 vf_shift = vf % 32; 656 reg_offset = vf / 32; 657 658 /* enable transmit for vf */ 659 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); 660 reg |= 1 << vf_shift; 661 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); 662 663 /* enable receive for vf */ 664 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 665 reg |= 1 << vf_shift; 666 /* 667 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. 668 * For more info take a look at ixgbe_set_vf_lpe 669 */ 670 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 671 struct net_device *dev = adapter->netdev; 672 int pf_max_frame = dev->mtu + ETH_HLEN; 673 674 #ifdef CONFIG_FCOE 675 if (dev->features & NETIF_F_FCOE_MTU) 676 pf_max_frame = max_t(int, pf_max_frame, 677 IXGBE_FCOE_JUMBO_FRAME_SIZE); 678 679 #endif /* CONFIG_FCOE */ 680 if (pf_max_frame > ETH_FRAME_LEN) 681 reg &= ~(1 << vf_shift); 682 } 683 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); 684 685 /* enable VF mailbox for further messages */ 686 adapter->vfinfo[vf].clear_to_send = true; 687 688 /* Enable counting of spoofed packets in the SSVPC register */ 689 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); 690 reg |= (1 << vf_shift); 691 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); 692 693 /* reply to reset with ack and vf mac address */ 694 msgbuf[0] = IXGBE_VF_RESET; 695 if (!is_zero_ether_addr(vf_mac)) { 696 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 697 memcpy(addr, vf_mac, ETH_ALEN); 698 } else { 699 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 700 dev_warn(&adapter->pdev->dev, 701 "VF %d has no MAC address assigned, you may have to assign one manually\n", 702 vf); 703 } 704 705 /* 706 * Piggyback the multicast filter type so VF can compute the 707 * correct vectors 708 */ 709 msgbuf[3] = hw->mac.mc_filter_type; 710 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); 711 712 return 0; 713 } 714 715 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, 716 u32 *msgbuf, u32 vf) 717 { 718 u8 *new_mac = ((u8 *)(&msgbuf[1])); 719 720 if (!is_valid_ether_addr(new_mac)) { 721 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 722 return -1; 723 } 724 725 if (adapter->vfinfo[vf].pf_set_mac && 726 memcmp(adapter->vfinfo[vf].vf_mac_addresses, new_mac, 727 ETH_ALEN)) { 728 e_warn(drv, 729 "VF %d attempted to override administratively set MAC address\n" 730 "Reload the VF driver to resume operations\n", 731 vf); 732 return -1; 733 } 734 735 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0; 736 } 737 738 static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan) 739 { 740 u32 vlvf; 741 s32 regindex; 742 743 /* short cut the special case */ 744 if (vlan == 0) 745 return 0; 746 747 /* Search for the vlan id in the VLVF entries */ 748 for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { 749 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); 750 if ((vlvf & VLAN_VID_MASK) == vlan) 751 break; 752 } 753 754 /* Return a negative value if not found */ 755 if (regindex >= IXGBE_VLVF_ENTRIES) 756 regindex = -1; 757 758 return regindex; 759 } 760 761 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, 762 u32 *msgbuf, u32 vf) 763 { 764 struct ixgbe_hw *hw = &adapter->hw; 765 int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT; 766 int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); 767 int err; 768 s32 reg_ndx; 769 u32 vlvf; 770 u32 bits; 771 u8 tcs = netdev_get_num_tc(adapter->netdev); 772 773 if (adapter->vfinfo[vf].pf_vlan || tcs) { 774 e_warn(drv, 775 "VF %d attempted to override administratively set VLAN configuration\n" 776 "Reload the VF driver to resume operations\n", 777 vf); 778 return -1; 779 } 780 781 if (add) 782 adapter->vfinfo[vf].vlan_count++; 783 else if (adapter->vfinfo[vf].vlan_count) 784 adapter->vfinfo[vf].vlan_count--; 785 786 /* in case of promiscuous mode any VLAN filter set for a VF must 787 * also have the PF pool added to it. 788 */ 789 if (add && adapter->netdev->flags & IFF_PROMISC) 790 err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); 791 792 err = ixgbe_set_vf_vlan(adapter, add, vid, vf); 793 if (!err && adapter->vfinfo[vf].spoofchk_enabled) 794 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 795 796 /* Go through all the checks to see if the VLAN filter should 797 * be wiped completely. 798 */ 799 if (!add && adapter->netdev->flags & IFF_PROMISC) { 800 reg_ndx = ixgbe_find_vlvf_entry(hw, vid); 801 if (reg_ndx < 0) 802 goto out; 803 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx)); 804 /* See if any other pools are set for this VLAN filter 805 * entry other than the PF. 806 */ 807 if (VMDQ_P(0) < 32) { 808 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); 809 bits &= ~(1 << VMDQ_P(0)); 810 bits |= IXGBE_READ_REG(hw, 811 IXGBE_VLVFB(reg_ndx * 2) + 1); 812 } else { 813 bits = IXGBE_READ_REG(hw, 814 IXGBE_VLVFB(reg_ndx * 2) + 1); 815 bits &= ~(1 << (VMDQ_P(0) - 32)); 816 bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); 817 } 818 819 /* If the filter was removed then ensure PF pool bit 820 * is cleared if the PF only added itself to the pool 821 * because the PF is in promiscuous mode. 822 */ 823 if ((vlvf & VLAN_VID_MASK) == vid && 824 !test_bit(vid, adapter->active_vlans) && !bits) 825 ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); 826 } 827 828 out: 829 830 return err; 831 } 832 833 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, 834 u32 *msgbuf, u32 vf) 835 { 836 u8 *new_mac = ((u8 *)(&msgbuf[1])); 837 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> 838 IXGBE_VT_MSGINFO_SHIFT; 839 int err; 840 841 if (adapter->vfinfo[vf].pf_set_mac && index > 0) { 842 e_warn(drv, 843 "VF %d requested MACVLAN filter but is administratively denied\n", 844 vf); 845 return -1; 846 } 847 848 /* An non-zero index indicates the VF is setting a filter */ 849 if (index) { 850 if (!is_valid_ether_addr(new_mac)) { 851 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 852 return -1; 853 } 854 855 /* 856 * If the VF is allowed to set MAC filters then turn off 857 * anti-spoofing to avoid false positives. 858 */ 859 if (adapter->vfinfo[vf].spoofchk_enabled) 860 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); 861 } 862 863 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); 864 if (err == -ENOSPC) 865 e_warn(drv, 866 "VF %d has requested a MACVLAN filter but there is no space for it\n", 867 vf); 868 869 return err < 0; 870 } 871 872 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, 873 u32 *msgbuf, u32 vf) 874 { 875 int api = msgbuf[1]; 876 877 switch (api) { 878 case ixgbe_mbox_api_10: 879 case ixgbe_mbox_api_11: 880 adapter->vfinfo[vf].vf_api = api; 881 return 0; 882 default: 883 break; 884 } 885 886 e_info(drv, "VF %d requested invalid api version %u\n", vf, api); 887 888 return -1; 889 } 890 891 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, 892 u32 *msgbuf, u32 vf) 893 { 894 struct net_device *dev = adapter->netdev; 895 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 896 unsigned int default_tc = 0; 897 u8 num_tcs = netdev_get_num_tc(dev); 898 899 /* verify the PF is supporting the correct APIs */ 900 switch (adapter->vfinfo[vf].vf_api) { 901 case ixgbe_mbox_api_20: 902 case ixgbe_mbox_api_11: 903 break; 904 default: 905 return -1; 906 } 907 908 /* only allow 1 Tx queue for bandwidth limiting */ 909 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 910 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 911 912 /* if TCs > 1 determine which TC belongs to default user priority */ 913 if (num_tcs > 1) 914 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); 915 916 /* notify VF of need for VLAN tag stripping, and correct queue */ 917 if (num_tcs) 918 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; 919 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) 920 msgbuf[IXGBE_VF_TRANS_VLAN] = 1; 921 else 922 msgbuf[IXGBE_VF_TRANS_VLAN] = 0; 923 924 /* notify VF of default queue */ 925 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; 926 927 return 0; 928 } 929 930 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) 931 { 932 u32 mbx_size = IXGBE_VFMAILBOX_SIZE; 933 u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; 934 struct ixgbe_hw *hw = &adapter->hw; 935 s32 retval; 936 937 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); 938 939 if (retval) { 940 pr_err("Error receiving message from VF\n"); 941 return retval; 942 } 943 944 /* this is a message we already processed, do nothing */ 945 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) 946 return retval; 947 948 /* flush the ack before we write any messages back */ 949 IXGBE_WRITE_FLUSH(hw); 950 951 if (msgbuf[0] == IXGBE_VF_RESET) 952 return ixgbe_vf_reset_msg(adapter, vf); 953 954 /* 955 * until the vf completes a virtual function reset it should not be 956 * allowed to start any configuration. 957 */ 958 if (!adapter->vfinfo[vf].clear_to_send) { 959 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 960 ixgbe_write_mbx(hw, msgbuf, 1, vf); 961 return retval; 962 } 963 964 switch ((msgbuf[0] & 0xFFFF)) { 965 case IXGBE_VF_SET_MAC_ADDR: 966 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); 967 break; 968 case IXGBE_VF_SET_MULTICAST: 969 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); 970 break; 971 case IXGBE_VF_SET_VLAN: 972 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); 973 break; 974 case IXGBE_VF_SET_LPE: 975 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); 976 break; 977 case IXGBE_VF_SET_MACVLAN: 978 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); 979 break; 980 case IXGBE_VF_API_NEGOTIATE: 981 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); 982 break; 983 case IXGBE_VF_GET_QUEUES: 984 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); 985 break; 986 default: 987 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); 988 retval = IXGBE_ERR_MBX; 989 break; 990 } 991 992 /* notify the VF of the results of what it sent us */ 993 if (retval) 994 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 995 else 996 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 997 998 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; 999 1000 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); 1001 1002 return retval; 1003 } 1004 1005 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) 1006 { 1007 struct ixgbe_hw *hw = &adapter->hw; 1008 u32 msg = IXGBE_VT_MSGTYPE_NACK; 1009 1010 /* if device isn't clear to send it shouldn't be reading either */ 1011 if (!adapter->vfinfo[vf].clear_to_send) 1012 ixgbe_write_mbx(hw, &msg, 1, vf); 1013 } 1014 1015 void ixgbe_msg_task(struct ixgbe_adapter *adapter) 1016 { 1017 struct ixgbe_hw *hw = &adapter->hw; 1018 u32 vf; 1019 1020 for (vf = 0; vf < adapter->num_vfs; vf++) { 1021 /* process any reset requests */ 1022 if (!ixgbe_check_for_rst(hw, vf)) 1023 ixgbe_vf_reset_event(adapter, vf); 1024 1025 /* process any messages pending */ 1026 if (!ixgbe_check_for_msg(hw, vf)) 1027 ixgbe_rcv_msg_from_vf(adapter, vf); 1028 1029 /* process any acks */ 1030 if (!ixgbe_check_for_ack(hw, vf)) 1031 ixgbe_rcv_ack_from_vf(adapter, vf); 1032 } 1033 } 1034 1035 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) 1036 { 1037 struct ixgbe_hw *hw = &adapter->hw; 1038 1039 /* disable transmit and receive for all vfs */ 1040 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); 1041 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); 1042 1043 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); 1044 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); 1045 } 1046 1047 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) 1048 { 1049 struct ixgbe_hw *hw = &adapter->hw; 1050 u32 ping; 1051 int i; 1052 1053 for (i = 0 ; i < adapter->num_vfs; i++) { 1054 ping = IXGBE_PF_CONTROL_MSG; 1055 if (adapter->vfinfo[i].clear_to_send) 1056 ping |= IXGBE_VT_MSGTYPE_CTS; 1057 ixgbe_write_mbx(hw, &ping, 1, i); 1058 } 1059 } 1060 1061 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) 1062 { 1063 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1064 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) 1065 return -EINVAL; 1066 adapter->vfinfo[vf].pf_set_mac = true; 1067 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); 1068 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" 1069 " change effective."); 1070 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1071 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," 1072 " but the PF device is not up.\n"); 1073 dev_warn(&adapter->pdev->dev, "Bring the PF device up before" 1074 " attempting to use the VF device.\n"); 1075 } 1076 return ixgbe_set_vf_mac(adapter, vf, mac); 1077 } 1078 1079 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) 1080 { 1081 int err = 0; 1082 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1083 struct ixgbe_hw *hw = &adapter->hw; 1084 1085 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) 1086 return -EINVAL; 1087 if (vlan || qos) { 1088 if (adapter->vfinfo[vf].pf_vlan) 1089 err = ixgbe_set_vf_vlan(adapter, false, 1090 adapter->vfinfo[vf].pf_vlan, 1091 vf); 1092 if (err) 1093 goto out; 1094 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); 1095 if (err) 1096 goto out; 1097 ixgbe_set_vmvir(adapter, vlan, qos, vf); 1098 ixgbe_set_vmolr(hw, vf, false); 1099 if (adapter->vfinfo[vf].spoofchk_enabled) 1100 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 1101 adapter->vfinfo[vf].vlan_count++; 1102 adapter->vfinfo[vf].pf_vlan = vlan; 1103 adapter->vfinfo[vf].pf_qos = qos; 1104 dev_info(&adapter->pdev->dev, 1105 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); 1106 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1107 dev_warn(&adapter->pdev->dev, 1108 "The VF VLAN has been set," 1109 " but the PF device is not up.\n"); 1110 dev_warn(&adapter->pdev->dev, 1111 "Bring the PF device up before" 1112 " attempting to use the VF device.\n"); 1113 } 1114 } else { 1115 err = ixgbe_set_vf_vlan(adapter, false, 1116 adapter->vfinfo[vf].pf_vlan, vf); 1117 ixgbe_clear_vmvir(adapter, vf); 1118 ixgbe_set_vmolr(hw, vf, true); 1119 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); 1120 if (adapter->vfinfo[vf].vlan_count) 1121 adapter->vfinfo[vf].vlan_count--; 1122 adapter->vfinfo[vf].pf_vlan = 0; 1123 adapter->vfinfo[vf].pf_qos = 0; 1124 } 1125 out: 1126 return err; 1127 } 1128 1129 static int ixgbe_link_mbps(struct ixgbe_adapter *adapter) 1130 { 1131 switch (adapter->link_speed) { 1132 case IXGBE_LINK_SPEED_100_FULL: 1133 return 100; 1134 case IXGBE_LINK_SPEED_1GB_FULL: 1135 return 1000; 1136 case IXGBE_LINK_SPEED_10GB_FULL: 1137 return 10000; 1138 default: 1139 return 0; 1140 } 1141 } 1142 1143 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) 1144 { 1145 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 1146 struct ixgbe_hw *hw = &adapter->hw; 1147 u32 bcnrc_val = 0; 1148 u16 queue, queues_per_pool; 1149 u16 tx_rate = adapter->vfinfo[vf].tx_rate; 1150 1151 if (tx_rate) { 1152 /* start with base link speed value */ 1153 bcnrc_val = adapter->vf_rate_link_speed; 1154 1155 /* Calculate the rate factor values to set */ 1156 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; 1157 bcnrc_val /= tx_rate; 1158 1159 /* clear everything but the rate factor */ 1160 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | 1161 IXGBE_RTTBCNRC_RF_DEC_MASK; 1162 1163 /* enable the rate scheduler */ 1164 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; 1165 } 1166 1167 /* 1168 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM 1169 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported 1170 * and 0x004 otherwise. 1171 */ 1172 switch (hw->mac.type) { 1173 case ixgbe_mac_82599EB: 1174 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); 1175 break; 1176 case ixgbe_mac_X540: 1177 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); 1178 break; 1179 default: 1180 break; 1181 } 1182 1183 /* determine how many queues per pool based on VMDq mask */ 1184 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 1185 1186 /* write value for all Tx queues belonging to VF */ 1187 for (queue = 0; queue < queues_per_pool; queue++) { 1188 unsigned int reg_idx = (vf * queues_per_pool) + queue; 1189 1190 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); 1191 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); 1192 } 1193 } 1194 1195 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) 1196 { 1197 int i; 1198 1199 /* VF Tx rate limit was not set */ 1200 if (!adapter->vf_rate_link_speed) 1201 return; 1202 1203 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { 1204 adapter->vf_rate_link_speed = 0; 1205 dev_info(&adapter->pdev->dev, 1206 "Link speed has been changed. VF Transmit rate is disabled\n"); 1207 } 1208 1209 for (i = 0; i < adapter->num_vfs; i++) { 1210 if (!adapter->vf_rate_link_speed) 1211 adapter->vfinfo[i].tx_rate = 0; 1212 1213 ixgbe_set_vf_rate_limit(adapter, i); 1214 } 1215 } 1216 1217 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) 1218 { 1219 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1220 int link_speed; 1221 1222 /* verify VF is active */ 1223 if (vf >= adapter->num_vfs) 1224 return -EINVAL; 1225 1226 /* verify link is up */ 1227 if (!adapter->link_up) 1228 return -EINVAL; 1229 1230 /* verify we are linked at 10Gbps */ 1231 link_speed = ixgbe_link_mbps(adapter); 1232 if (link_speed != 10000) 1233 return -EINVAL; 1234 1235 /* rate limit cannot be less than 10Mbs or greater than link speed */ 1236 if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed))) 1237 return -EINVAL; 1238 1239 /* store values */ 1240 adapter->vf_rate_link_speed = link_speed; 1241 adapter->vfinfo[vf].tx_rate = tx_rate; 1242 1243 /* update hardware configuration */ 1244 ixgbe_set_vf_rate_limit(adapter, vf); 1245 1246 return 0; 1247 } 1248 1249 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) 1250 { 1251 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1252 int vf_target_reg = vf >> 3; 1253 int vf_target_shift = vf % 8; 1254 struct ixgbe_hw *hw = &adapter->hw; 1255 u32 regval; 1256 1257 adapter->vfinfo[vf].spoofchk_enabled = setting; 1258 1259 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); 1260 regval &= ~(1 << vf_target_shift); 1261 regval |= (setting << vf_target_shift); 1262 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); 1263 1264 if (adapter->vfinfo[vf].vlan_count) { 1265 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; 1266 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); 1267 regval &= ~(1 << vf_target_shift); 1268 regval |= (setting << vf_target_shift); 1269 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); 1270 } 1271 1272 return 0; 1273 } 1274 1275 int ixgbe_ndo_get_vf_config(struct net_device *netdev, 1276 int vf, struct ifla_vf_info *ivi) 1277 { 1278 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1279 if (vf >= adapter->num_vfs) 1280 return -EINVAL; 1281 ivi->vf = vf; 1282 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); 1283 ivi->tx_rate = adapter->vfinfo[vf].tx_rate; 1284 ivi->vlan = adapter->vfinfo[vf].pf_vlan; 1285 ivi->qos = adapter->vfinfo[vf].pf_qos; 1286 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; 1287 return 0; 1288 } 1289