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 Linux NICS <linux.nics@intel.com> 24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 26 27 *******************************************************************************/ 28 29 #include <linux/types.h> 30 #include <linux/module.h> 31 #include <linux/pci.h> 32 #include <linux/netdevice.h> 33 #include <linux/vmalloc.h> 34 #include <linux/string.h> 35 #include <linux/in.h> 36 #include <linux/ip.h> 37 #include <linux/tcp.h> 38 #include <linux/ipv6.h> 39 #ifdef NETIF_F_HW_VLAN_CTAG_TX 40 #include <linux/if_vlan.h> 41 #endif 42 43 #include "ixgbe.h" 44 #include "ixgbe_type.h" 45 #include "ixgbe_sriov.h" 46 47 #ifdef CONFIG_PCI_IOV 48 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter) 49 { 50 struct ixgbe_hw *hw = &adapter->hw; 51 int num_vf_macvlans, i; 52 struct vf_macvlans *mv_list; 53 54 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; 55 e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs); 56 57 /* Enable VMDq flag so device will be set in VM mode */ 58 adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED; 59 if (!adapter->ring_feature[RING_F_VMDQ].limit) 60 adapter->ring_feature[RING_F_VMDQ].limit = 1; 61 adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs; 62 63 num_vf_macvlans = hw->mac.num_rar_entries - 64 (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs); 65 66 adapter->mv_list = mv_list = kcalloc(num_vf_macvlans, 67 sizeof(struct vf_macvlans), 68 GFP_KERNEL); 69 if (mv_list) { 70 /* Initialize list of VF macvlans */ 71 INIT_LIST_HEAD(&adapter->vf_mvs.l); 72 for (i = 0; i < num_vf_macvlans; i++) { 73 mv_list->vf = -1; 74 mv_list->free = true; 75 mv_list->rar_entry = hw->mac.num_rar_entries - 76 (i + adapter->num_vfs + 1); 77 list_add(&mv_list->l, &adapter->vf_mvs.l); 78 mv_list++; 79 } 80 } 81 82 /* Initialize default switching mode VEB */ 83 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); 84 adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB; 85 86 /* If call to enable VFs succeeded then allocate memory 87 * for per VF control structures. 88 */ 89 adapter->vfinfo = 90 kcalloc(adapter->num_vfs, 91 sizeof(struct vf_data_storage), GFP_KERNEL); 92 if (adapter->vfinfo) { 93 /* limit trafffic classes based on VFs enabled */ 94 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && 95 (adapter->num_vfs < 16)) { 96 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; 97 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; 98 } else if (adapter->num_vfs < 32) { 99 adapter->dcb_cfg.num_tcs.pg_tcs = 4; 100 adapter->dcb_cfg.num_tcs.pfc_tcs = 4; 101 } else { 102 adapter->dcb_cfg.num_tcs.pg_tcs = 1; 103 adapter->dcb_cfg.num_tcs.pfc_tcs = 1; 104 } 105 106 /* We do not support RSS w/ SR-IOV */ 107 adapter->ring_feature[RING_F_RSS].limit = 1; 108 109 /* Disable RSC when in SR-IOV mode */ 110 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | 111 IXGBE_FLAG2_RSC_ENABLED); 112 113 /* enable spoof checking for all VFs */ 114 for (i = 0; i < adapter->num_vfs; i++) 115 adapter->vfinfo[i].spoofchk_enabled = true; 116 return 0; 117 } 118 119 return -ENOMEM; 120 } 121 122 /* Note this function is called when the user wants to enable SR-IOV 123 * VFs using the now deprecated module parameter 124 */ 125 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter) 126 { 127 int pre_existing_vfs = 0; 128 129 pre_existing_vfs = pci_num_vf(adapter->pdev); 130 if (!pre_existing_vfs && !adapter->num_vfs) 131 return; 132 133 /* If there are pre-existing VFs then we have to force 134 * use of that many - over ride any module parameter value. 135 * This may result from the user unloading the PF driver 136 * while VFs were assigned to guest VMs or because the VFs 137 * have been created via the new PCI SR-IOV sysfs interface. 138 */ 139 if (pre_existing_vfs) { 140 adapter->num_vfs = pre_existing_vfs; 141 dev_warn(&adapter->pdev->dev, 142 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n"); 143 } else { 144 int err; 145 /* 146 * The 82599 supports up to 64 VFs per physical function 147 * but this implementation limits allocation to 63 so that 148 * basic networking resources are still available to the 149 * physical function. If the user requests greater thn 150 * 63 VFs then it is an error - reset to default of zero. 151 */ 152 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, IXGBE_MAX_VFS_DRV_LIMIT); 153 154 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); 155 if (err) { 156 e_err(probe, "Failed to enable PCI sriov: %d\n", err); 157 adapter->num_vfs = 0; 158 return; 159 } 160 } 161 162 if (!__ixgbe_enable_sriov(adapter)) 163 return; 164 165 /* If we have gotten to this point then there is no memory available 166 * to manage the VF devices - print message and bail. 167 */ 168 e_err(probe, "Unable to allocate memory for VF Data Storage - " 169 "SRIOV disabled\n"); 170 ixgbe_disable_sriov(adapter); 171 } 172 173 #endif /* #ifdef CONFIG_PCI_IOV */ 174 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) 175 { 176 struct ixgbe_hw *hw = &adapter->hw; 177 u32 gpie; 178 u32 vmdctl; 179 int rss; 180 181 /* set num VFs to 0 to prevent access to vfinfo */ 182 adapter->num_vfs = 0; 183 184 /* free VF control structures */ 185 kfree(adapter->vfinfo); 186 adapter->vfinfo = NULL; 187 188 /* free macvlan list */ 189 kfree(adapter->mv_list); 190 adapter->mv_list = NULL; 191 192 /* if SR-IOV is already disabled then there is nothing to do */ 193 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) 194 return 0; 195 196 #ifdef CONFIG_PCI_IOV 197 /* 198 * If our VFs are assigned we cannot shut down SR-IOV 199 * without causing issues, so just leave the hardware 200 * available but disabled 201 */ 202 if (pci_vfs_assigned(adapter->pdev)) { 203 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); 204 return -EPERM; 205 } 206 /* disable iov and allow time for transactions to clear */ 207 pci_disable_sriov(adapter->pdev); 208 #endif 209 210 /* turn off device IOV mode */ 211 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); 212 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); 213 gpie &= ~IXGBE_GPIE_VTMODE_MASK; 214 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); 215 216 /* set default pool back to 0 */ 217 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); 218 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; 219 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); 220 IXGBE_WRITE_FLUSH(hw); 221 222 /* Disable VMDq flag so device will be set in VM mode */ 223 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) { 224 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; 225 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; 226 rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); 227 } else { 228 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus()); 229 } 230 231 adapter->ring_feature[RING_F_VMDQ].offset = 0; 232 adapter->ring_feature[RING_F_RSS].limit = rss; 233 234 /* take a breather then clean up driver data */ 235 msleep(100); 236 return 0; 237 } 238 239 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) 240 { 241 #ifdef CONFIG_PCI_IOV 242 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 243 int err = 0; 244 int i; 245 int pre_existing_vfs = pci_num_vf(dev); 246 247 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 248 err = ixgbe_disable_sriov(adapter); 249 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 250 goto out; 251 252 if (err) 253 goto err_out; 254 255 /* While the SR-IOV capability structure reports total VFs to be 256 * 64 we limit the actual number that can be allocated to 63 so 257 * that some transmit/receive resources can be reserved to the 258 * PF. The PCI bus driver already checks for other values out of 259 * range. 260 */ 261 if (num_vfs > IXGBE_MAX_VFS_DRV_LIMIT) { 262 err = -EPERM; 263 goto err_out; 264 } 265 266 adapter->num_vfs = num_vfs; 267 268 err = __ixgbe_enable_sriov(adapter); 269 if (err) 270 goto err_out; 271 272 for (i = 0; i < adapter->num_vfs; i++) 273 ixgbe_vf_configuration(dev, (i | 0x10000000)); 274 275 err = pci_enable_sriov(dev, num_vfs); 276 if (err) { 277 e_dev_warn("Failed to enable PCI sriov: %d\n", err); 278 goto err_out; 279 } 280 ixgbe_sriov_reinit(adapter); 281 282 out: 283 return num_vfs; 284 285 err_out: 286 return err; 287 #endif 288 return 0; 289 } 290 291 static int ixgbe_pci_sriov_disable(struct pci_dev *dev) 292 { 293 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 294 int err; 295 #ifdef CONFIG_PCI_IOV 296 u32 current_flags = adapter->flags; 297 #endif 298 299 err = ixgbe_disable_sriov(adapter); 300 301 /* Only reinit if no error and state changed */ 302 #ifdef CONFIG_PCI_IOV 303 if (!err && current_flags != adapter->flags) 304 ixgbe_sriov_reinit(adapter); 305 #endif 306 307 return err; 308 } 309 310 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs) 311 { 312 if (num_vfs == 0) 313 return ixgbe_pci_sriov_disable(dev); 314 else 315 return ixgbe_pci_sriov_enable(dev, num_vfs); 316 } 317 318 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, 319 u32 *msgbuf, u32 vf) 320 { 321 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) 322 >> IXGBE_VT_MSGINFO_SHIFT; 323 u16 *hash_list = (u16 *)&msgbuf[1]; 324 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 325 struct ixgbe_hw *hw = &adapter->hw; 326 int i; 327 u32 vector_bit; 328 u32 vector_reg; 329 u32 mta_reg; 330 331 /* only so many hash values supported */ 332 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); 333 334 /* 335 * salt away the number of multi cast addresses assigned 336 * to this VF for later use to restore when the PF multi cast 337 * list changes 338 */ 339 vfinfo->num_vf_mc_hashes = entries; 340 341 /* 342 * VFs are limited to using the MTA hash table for their multicast 343 * addresses 344 */ 345 for (i = 0; i < entries; i++) { 346 vfinfo->vf_mc_hashes[i] = hash_list[i]; 347 } 348 349 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { 350 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; 351 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; 352 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 353 mta_reg |= (1 << vector_bit); 354 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 355 } 356 357 return 0; 358 } 359 360 static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) 361 { 362 struct ixgbe_hw *hw = &adapter->hw; 363 struct list_head *pos; 364 struct vf_macvlans *entry; 365 366 list_for_each(pos, &adapter->vf_mvs.l) { 367 entry = list_entry(pos, struct vf_macvlans, l); 368 if (!entry->free) 369 hw->mac.ops.set_rar(hw, entry->rar_entry, 370 entry->vf_macvlan, 371 entry->vf, IXGBE_RAH_AV); 372 } 373 } 374 375 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) 376 { 377 struct ixgbe_hw *hw = &adapter->hw; 378 struct vf_data_storage *vfinfo; 379 int i, j; 380 u32 vector_bit; 381 u32 vector_reg; 382 u32 mta_reg; 383 384 for (i = 0; i < adapter->num_vfs; i++) { 385 vfinfo = &adapter->vfinfo[i]; 386 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { 387 hw->addr_ctrl.mta_in_use++; 388 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; 389 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; 390 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 391 mta_reg |= (1 << vector_bit); 392 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 393 } 394 } 395 396 /* Restore any VF macvlans */ 397 ixgbe_restore_vf_macvlans(adapter); 398 } 399 400 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, 401 u32 vf) 402 { 403 /* VLAN 0 is a special case, don't allow it to be removed */ 404 if (!vid && !add) 405 return 0; 406 407 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); 408 } 409 410 static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) 411 { 412 struct ixgbe_hw *hw = &adapter->hw; 413 int max_frame = msgbuf[1]; 414 u32 max_frs; 415 416 /* 417 * For 82599EB we have to keep all PFs and VFs operating with 418 * the same max_frame value in order to avoid sending an oversize 419 * frame to a VF. In order to guarantee this is handled correctly 420 * for all cases we have several special exceptions to take into 421 * account before we can enable the VF for receive 422 */ 423 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 424 struct net_device *dev = adapter->netdev; 425 int pf_max_frame = dev->mtu + ETH_HLEN; 426 u32 reg_offset, vf_shift, vfre; 427 s32 err = 0; 428 429 #ifdef CONFIG_FCOE 430 if (dev->features & NETIF_F_FCOE_MTU) 431 pf_max_frame = max_t(int, pf_max_frame, 432 IXGBE_FCOE_JUMBO_FRAME_SIZE); 433 434 #endif /* CONFIG_FCOE */ 435 switch (adapter->vfinfo[vf].vf_api) { 436 case ixgbe_mbox_api_11: 437 /* 438 * Version 1.1 supports jumbo frames on VFs if PF has 439 * jumbo frames enabled which means legacy VFs are 440 * disabled 441 */ 442 if (pf_max_frame > ETH_FRAME_LEN) 443 break; 444 default: 445 /* 446 * If the PF or VF are running w/ jumbo frames enabled 447 * we need to shut down the VF Rx path as we cannot 448 * support jumbo frames on legacy VFs 449 */ 450 if ((pf_max_frame > ETH_FRAME_LEN) || 451 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) 452 err = -EINVAL; 453 break; 454 } 455 456 /* determine VF receive enable location */ 457 vf_shift = vf % 32; 458 reg_offset = vf / 32; 459 460 /* enable or disable receive depending on error */ 461 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 462 if (err) 463 vfre &= ~(1 << vf_shift); 464 else 465 vfre |= 1 << vf_shift; 466 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); 467 468 if (err) { 469 e_err(drv, "VF max_frame %d out of range\n", max_frame); 470 return err; 471 } 472 } 473 474 /* MTU < 68 is an error and causes problems on some kernels */ 475 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { 476 e_err(drv, "VF max_frame %d out of range\n", max_frame); 477 return -EINVAL; 478 } 479 480 /* pull current max frame size from hardware */ 481 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); 482 max_frs &= IXGBE_MHADD_MFS_MASK; 483 max_frs >>= IXGBE_MHADD_MFS_SHIFT; 484 485 if (max_frs < max_frame) { 486 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; 487 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); 488 } 489 490 e_info(hw, "VF requests change max MTU to %d\n", max_frame); 491 492 return 0; 493 } 494 495 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) 496 { 497 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); 498 vmolr |= (IXGBE_VMOLR_ROMPE | 499 IXGBE_VMOLR_BAM); 500 if (aupe) 501 vmolr |= IXGBE_VMOLR_AUPE; 502 else 503 vmolr &= ~IXGBE_VMOLR_AUPE; 504 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); 505 } 506 507 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) 508 { 509 struct ixgbe_hw *hw = &adapter->hw; 510 511 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); 512 } 513 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) 514 { 515 struct ixgbe_hw *hw = &adapter->hw; 516 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 517 int rar_entry = hw->mac.num_rar_entries - (vf + 1); 518 u8 num_tcs = netdev_get_num_tc(adapter->netdev); 519 520 /* add PF assigned VLAN or VLAN 0 */ 521 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); 522 523 /* reset offloads to defaults */ 524 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); 525 526 /* set outgoing tags for VFs */ 527 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { 528 ixgbe_clear_vmvir(adapter, vf); 529 } else { 530 if (vfinfo->pf_qos || !num_tcs) 531 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 532 vfinfo->pf_qos, vf); 533 else 534 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 535 adapter->default_up, vf); 536 537 if (vfinfo->spoofchk_enabled) 538 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 539 } 540 541 /* reset multicast table array for vf */ 542 adapter->vfinfo[vf].num_vf_mc_hashes = 0; 543 544 /* Flush and reset the mta with the new values */ 545 ixgbe_set_rx_mode(adapter->netdev); 546 547 hw->mac.ops.clear_rar(hw, rar_entry); 548 549 /* reset VF api back to unknown */ 550 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; 551 } 552 553 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, 554 int vf, unsigned char *mac_addr) 555 { 556 struct ixgbe_hw *hw = &adapter->hw; 557 int rar_entry = hw->mac.num_rar_entries - (vf + 1); 558 559 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN); 560 hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); 561 562 return 0; 563 } 564 565 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, 566 int vf, int index, unsigned char *mac_addr) 567 { 568 struct ixgbe_hw *hw = &adapter->hw; 569 struct list_head *pos; 570 struct vf_macvlans *entry; 571 572 if (index <= 1) { 573 list_for_each(pos, &adapter->vf_mvs.l) { 574 entry = list_entry(pos, struct vf_macvlans, l); 575 if (entry->vf == vf) { 576 entry->vf = -1; 577 entry->free = true; 578 entry->is_macvlan = false; 579 hw->mac.ops.clear_rar(hw, entry->rar_entry); 580 } 581 } 582 } 583 584 /* 585 * If index was zero then we were asked to clear the uc list 586 * for the VF. We're done. 587 */ 588 if (!index) 589 return 0; 590 591 entry = NULL; 592 593 list_for_each(pos, &adapter->vf_mvs.l) { 594 entry = list_entry(pos, struct vf_macvlans, l); 595 if (entry->free) 596 break; 597 } 598 599 /* 600 * If we traversed the entire list and didn't find a free entry 601 * then we're out of space on the RAR table. Also entry may 602 * be NULL because the original memory allocation for the list 603 * failed, which is not fatal but does mean we can't support 604 * VF requests for MACVLAN because we couldn't allocate 605 * memory for the list management required. 606 */ 607 if (!entry || !entry->free) 608 return -ENOSPC; 609 610 entry->free = false; 611 entry->is_macvlan = true; 612 entry->vf = vf; 613 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); 614 615 hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); 616 617 return 0; 618 } 619 620 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) 621 { 622 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); 623 unsigned int vfn = (event_mask & 0x3f); 624 625 bool enable = ((event_mask & 0x10000000U) != 0); 626 627 if (enable) 628 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses); 629 630 return 0; 631 } 632 633 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) 634 { 635 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 636 struct ixgbe_hw *hw = &adapter->hw; 637 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; 638 u32 reg, reg_offset, vf_shift; 639 u32 msgbuf[4] = {0, 0, 0, 0}; 640 u8 *addr = (u8 *)(&msgbuf[1]); 641 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 642 int i; 643 644 e_info(probe, "VF Reset msg received from vf %d\n", vf); 645 646 /* reset the filters for the device */ 647 ixgbe_vf_reset_event(adapter, vf); 648 649 /* set vf mac address */ 650 if (!is_zero_ether_addr(vf_mac)) 651 ixgbe_set_vf_mac(adapter, vf, vf_mac); 652 653 vf_shift = vf % 32; 654 reg_offset = vf / 32; 655 656 /* enable transmit for vf */ 657 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); 658 reg |= 1 << vf_shift; 659 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); 660 661 /* force drop enable for all VF Rx queues */ 662 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) { 663 /* flush previous write */ 664 IXGBE_WRITE_FLUSH(hw); 665 666 /* indicate to hardware that we want to set drop enable */ 667 reg = IXGBE_QDE_WRITE | IXGBE_QDE_ENABLE; 668 reg |= i << IXGBE_QDE_IDX_SHIFT; 669 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg); 670 } 671 672 /* enable receive for vf */ 673 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 674 reg |= 1 << vf_shift; 675 /* 676 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. 677 * For more info take a look at ixgbe_set_vf_lpe 678 */ 679 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 680 struct net_device *dev = adapter->netdev; 681 int pf_max_frame = dev->mtu + ETH_HLEN; 682 683 #ifdef CONFIG_FCOE 684 if (dev->features & NETIF_F_FCOE_MTU) 685 pf_max_frame = max_t(int, pf_max_frame, 686 IXGBE_FCOE_JUMBO_FRAME_SIZE); 687 688 #endif /* CONFIG_FCOE */ 689 if (pf_max_frame > ETH_FRAME_LEN) 690 reg &= ~(1 << vf_shift); 691 } 692 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); 693 694 /* enable VF mailbox for further messages */ 695 adapter->vfinfo[vf].clear_to_send = true; 696 697 /* Enable counting of spoofed packets in the SSVPC register */ 698 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); 699 reg |= (1 << vf_shift); 700 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); 701 702 /* 703 * Reset the VFs TDWBAL and TDWBAH registers 704 * which are not cleared by an FLR 705 */ 706 for (i = 0; i < q_per_pool; i++) { 707 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0); 708 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0); 709 } 710 711 /* reply to reset with ack and vf mac address */ 712 msgbuf[0] = IXGBE_VF_RESET; 713 if (!is_zero_ether_addr(vf_mac)) { 714 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 715 memcpy(addr, vf_mac, ETH_ALEN); 716 } else { 717 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 718 dev_warn(&adapter->pdev->dev, 719 "VF %d has no MAC address assigned, you may have to assign one manually\n", 720 vf); 721 } 722 723 /* 724 * Piggyback the multicast filter type so VF can compute the 725 * correct vectors 726 */ 727 msgbuf[3] = hw->mac.mc_filter_type; 728 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); 729 730 return 0; 731 } 732 733 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, 734 u32 *msgbuf, u32 vf) 735 { 736 u8 *new_mac = ((u8 *)(&msgbuf[1])); 737 738 if (!is_valid_ether_addr(new_mac)) { 739 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 740 return -1; 741 } 742 743 if (adapter->vfinfo[vf].pf_set_mac && 744 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) { 745 e_warn(drv, 746 "VF %d attempted to override administratively set MAC address\n" 747 "Reload the VF driver to resume operations\n", 748 vf); 749 return -1; 750 } 751 752 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0; 753 } 754 755 static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan) 756 { 757 u32 vlvf; 758 s32 regindex; 759 760 /* short cut the special case */ 761 if (vlan == 0) 762 return 0; 763 764 /* Search for the vlan id in the VLVF entries */ 765 for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { 766 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); 767 if ((vlvf & VLAN_VID_MASK) == vlan) 768 break; 769 } 770 771 /* Return a negative value if not found */ 772 if (regindex >= IXGBE_VLVF_ENTRIES) 773 regindex = -1; 774 775 return regindex; 776 } 777 778 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, 779 u32 *msgbuf, u32 vf) 780 { 781 struct ixgbe_hw *hw = &adapter->hw; 782 int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT; 783 int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); 784 int err; 785 s32 reg_ndx; 786 u32 vlvf; 787 u32 bits; 788 u8 tcs = netdev_get_num_tc(adapter->netdev); 789 790 if (adapter->vfinfo[vf].pf_vlan || tcs) { 791 e_warn(drv, 792 "VF %d attempted to override administratively set VLAN configuration\n" 793 "Reload the VF driver to resume operations\n", 794 vf); 795 return -1; 796 } 797 798 if (add) 799 adapter->vfinfo[vf].vlan_count++; 800 else if (adapter->vfinfo[vf].vlan_count) 801 adapter->vfinfo[vf].vlan_count--; 802 803 /* in case of promiscuous mode any VLAN filter set for a VF must 804 * also have the PF pool added to it. 805 */ 806 if (add && adapter->netdev->flags & IFF_PROMISC) 807 err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); 808 809 err = ixgbe_set_vf_vlan(adapter, add, vid, vf); 810 if (!err && adapter->vfinfo[vf].spoofchk_enabled) 811 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 812 813 /* Go through all the checks to see if the VLAN filter should 814 * be wiped completely. 815 */ 816 if (!add && adapter->netdev->flags & IFF_PROMISC) { 817 reg_ndx = ixgbe_find_vlvf_entry(hw, vid); 818 if (reg_ndx < 0) 819 goto out; 820 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx)); 821 /* See if any other pools are set for this VLAN filter 822 * entry other than the PF. 823 */ 824 if (VMDQ_P(0) < 32) { 825 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); 826 bits &= ~(1 << VMDQ_P(0)); 827 bits |= IXGBE_READ_REG(hw, 828 IXGBE_VLVFB(reg_ndx * 2) + 1); 829 } else { 830 bits = IXGBE_READ_REG(hw, 831 IXGBE_VLVFB(reg_ndx * 2) + 1); 832 bits &= ~(1 << (VMDQ_P(0) - 32)); 833 bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); 834 } 835 836 /* If the filter was removed then ensure PF pool bit 837 * is cleared if the PF only added itself to the pool 838 * because the PF is in promiscuous mode. 839 */ 840 if ((vlvf & VLAN_VID_MASK) == vid && 841 !test_bit(vid, adapter->active_vlans) && !bits) 842 ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); 843 } 844 845 out: 846 847 return err; 848 } 849 850 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, 851 u32 *msgbuf, u32 vf) 852 { 853 u8 *new_mac = ((u8 *)(&msgbuf[1])); 854 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> 855 IXGBE_VT_MSGINFO_SHIFT; 856 int err; 857 858 if (adapter->vfinfo[vf].pf_set_mac && index > 0) { 859 e_warn(drv, 860 "VF %d requested MACVLAN filter but is administratively denied\n", 861 vf); 862 return -1; 863 } 864 865 /* An non-zero index indicates the VF is setting a filter */ 866 if (index) { 867 if (!is_valid_ether_addr(new_mac)) { 868 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 869 return -1; 870 } 871 872 /* 873 * If the VF is allowed to set MAC filters then turn off 874 * anti-spoofing to avoid false positives. 875 */ 876 if (adapter->vfinfo[vf].spoofchk_enabled) 877 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); 878 } 879 880 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); 881 if (err == -ENOSPC) 882 e_warn(drv, 883 "VF %d has requested a MACVLAN filter but there is no space for it\n", 884 vf); 885 886 return err < 0; 887 } 888 889 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, 890 u32 *msgbuf, u32 vf) 891 { 892 int api = msgbuf[1]; 893 894 switch (api) { 895 case ixgbe_mbox_api_10: 896 case ixgbe_mbox_api_11: 897 adapter->vfinfo[vf].vf_api = api; 898 return 0; 899 default: 900 break; 901 } 902 903 e_info(drv, "VF %d requested invalid api version %u\n", vf, api); 904 905 return -1; 906 } 907 908 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, 909 u32 *msgbuf, u32 vf) 910 { 911 struct net_device *dev = adapter->netdev; 912 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 913 unsigned int default_tc = 0; 914 u8 num_tcs = netdev_get_num_tc(dev); 915 916 /* verify the PF is supporting the correct APIs */ 917 switch (adapter->vfinfo[vf].vf_api) { 918 case ixgbe_mbox_api_20: 919 case ixgbe_mbox_api_11: 920 break; 921 default: 922 return -1; 923 } 924 925 /* only allow 1 Tx queue for bandwidth limiting */ 926 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 927 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 928 929 /* if TCs > 1 determine which TC belongs to default user priority */ 930 if (num_tcs > 1) 931 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); 932 933 /* notify VF of need for VLAN tag stripping, and correct queue */ 934 if (num_tcs) 935 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; 936 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) 937 msgbuf[IXGBE_VF_TRANS_VLAN] = 1; 938 else 939 msgbuf[IXGBE_VF_TRANS_VLAN] = 0; 940 941 /* notify VF of default queue */ 942 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; 943 944 return 0; 945 } 946 947 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) 948 { 949 u32 mbx_size = IXGBE_VFMAILBOX_SIZE; 950 u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; 951 struct ixgbe_hw *hw = &adapter->hw; 952 s32 retval; 953 954 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); 955 956 if (retval) { 957 pr_err("Error receiving message from VF\n"); 958 return retval; 959 } 960 961 /* this is a message we already processed, do nothing */ 962 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) 963 return retval; 964 965 /* flush the ack before we write any messages back */ 966 IXGBE_WRITE_FLUSH(hw); 967 968 if (msgbuf[0] == IXGBE_VF_RESET) 969 return ixgbe_vf_reset_msg(adapter, vf); 970 971 /* 972 * until the vf completes a virtual function reset it should not be 973 * allowed to start any configuration. 974 */ 975 if (!adapter->vfinfo[vf].clear_to_send) { 976 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 977 ixgbe_write_mbx(hw, msgbuf, 1, vf); 978 return retval; 979 } 980 981 switch ((msgbuf[0] & 0xFFFF)) { 982 case IXGBE_VF_SET_MAC_ADDR: 983 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); 984 break; 985 case IXGBE_VF_SET_MULTICAST: 986 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); 987 break; 988 case IXGBE_VF_SET_VLAN: 989 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); 990 break; 991 case IXGBE_VF_SET_LPE: 992 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); 993 break; 994 case IXGBE_VF_SET_MACVLAN: 995 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); 996 break; 997 case IXGBE_VF_API_NEGOTIATE: 998 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); 999 break; 1000 case IXGBE_VF_GET_QUEUES: 1001 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); 1002 break; 1003 default: 1004 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); 1005 retval = IXGBE_ERR_MBX; 1006 break; 1007 } 1008 1009 /* notify the VF of the results of what it sent us */ 1010 if (retval) 1011 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 1012 else 1013 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 1014 1015 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; 1016 1017 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); 1018 1019 return retval; 1020 } 1021 1022 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) 1023 { 1024 struct ixgbe_hw *hw = &adapter->hw; 1025 u32 msg = IXGBE_VT_MSGTYPE_NACK; 1026 1027 /* if device isn't clear to send it shouldn't be reading either */ 1028 if (!adapter->vfinfo[vf].clear_to_send) 1029 ixgbe_write_mbx(hw, &msg, 1, vf); 1030 } 1031 1032 void ixgbe_msg_task(struct ixgbe_adapter *adapter) 1033 { 1034 struct ixgbe_hw *hw = &adapter->hw; 1035 u32 vf; 1036 1037 for (vf = 0; vf < adapter->num_vfs; vf++) { 1038 /* process any reset requests */ 1039 if (!ixgbe_check_for_rst(hw, vf)) 1040 ixgbe_vf_reset_event(adapter, vf); 1041 1042 /* process any messages pending */ 1043 if (!ixgbe_check_for_msg(hw, vf)) 1044 ixgbe_rcv_msg_from_vf(adapter, vf); 1045 1046 /* process any acks */ 1047 if (!ixgbe_check_for_ack(hw, vf)) 1048 ixgbe_rcv_ack_from_vf(adapter, vf); 1049 } 1050 } 1051 1052 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) 1053 { 1054 struct ixgbe_hw *hw = &adapter->hw; 1055 1056 /* disable transmit and receive for all vfs */ 1057 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); 1058 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); 1059 1060 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); 1061 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); 1062 } 1063 1064 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) 1065 { 1066 struct ixgbe_hw *hw = &adapter->hw; 1067 u32 ping; 1068 int i; 1069 1070 for (i = 0 ; i < adapter->num_vfs; i++) { 1071 ping = IXGBE_PF_CONTROL_MSG; 1072 if (adapter->vfinfo[i].clear_to_send) 1073 ping |= IXGBE_VT_MSGTYPE_CTS; 1074 ixgbe_write_mbx(hw, &ping, 1, i); 1075 } 1076 } 1077 1078 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) 1079 { 1080 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1081 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) 1082 return -EINVAL; 1083 adapter->vfinfo[vf].pf_set_mac = true; 1084 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); 1085 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" 1086 " change effective."); 1087 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1088 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," 1089 " but the PF device is not up.\n"); 1090 dev_warn(&adapter->pdev->dev, "Bring the PF device up before" 1091 " attempting to use the VF device.\n"); 1092 } 1093 return ixgbe_set_vf_mac(adapter, vf, mac); 1094 } 1095 1096 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) 1097 { 1098 int err = 0; 1099 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1100 struct ixgbe_hw *hw = &adapter->hw; 1101 1102 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) 1103 return -EINVAL; 1104 if (vlan || qos) { 1105 if (adapter->vfinfo[vf].pf_vlan) 1106 err = ixgbe_set_vf_vlan(adapter, false, 1107 adapter->vfinfo[vf].pf_vlan, 1108 vf); 1109 if (err) 1110 goto out; 1111 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); 1112 if (err) 1113 goto out; 1114 ixgbe_set_vmvir(adapter, vlan, qos, vf); 1115 ixgbe_set_vmolr(hw, vf, false); 1116 if (adapter->vfinfo[vf].spoofchk_enabled) 1117 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 1118 adapter->vfinfo[vf].vlan_count++; 1119 adapter->vfinfo[vf].pf_vlan = vlan; 1120 adapter->vfinfo[vf].pf_qos = qos; 1121 dev_info(&adapter->pdev->dev, 1122 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); 1123 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1124 dev_warn(&adapter->pdev->dev, 1125 "The VF VLAN has been set," 1126 " but the PF device is not up.\n"); 1127 dev_warn(&adapter->pdev->dev, 1128 "Bring the PF device up before" 1129 " attempting to use the VF device.\n"); 1130 } 1131 } else { 1132 err = ixgbe_set_vf_vlan(adapter, false, 1133 adapter->vfinfo[vf].pf_vlan, vf); 1134 ixgbe_clear_vmvir(adapter, vf); 1135 ixgbe_set_vmolr(hw, vf, true); 1136 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); 1137 if (adapter->vfinfo[vf].vlan_count) 1138 adapter->vfinfo[vf].vlan_count--; 1139 adapter->vfinfo[vf].pf_vlan = 0; 1140 adapter->vfinfo[vf].pf_qos = 0; 1141 } 1142 out: 1143 return err; 1144 } 1145 1146 static int ixgbe_link_mbps(struct ixgbe_adapter *adapter) 1147 { 1148 switch (adapter->link_speed) { 1149 case IXGBE_LINK_SPEED_100_FULL: 1150 return 100; 1151 case IXGBE_LINK_SPEED_1GB_FULL: 1152 return 1000; 1153 case IXGBE_LINK_SPEED_10GB_FULL: 1154 return 10000; 1155 default: 1156 return 0; 1157 } 1158 } 1159 1160 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) 1161 { 1162 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 1163 struct ixgbe_hw *hw = &adapter->hw; 1164 u32 bcnrc_val = 0; 1165 u16 queue, queues_per_pool; 1166 u16 tx_rate = adapter->vfinfo[vf].tx_rate; 1167 1168 if (tx_rate) { 1169 /* start with base link speed value */ 1170 bcnrc_val = adapter->vf_rate_link_speed; 1171 1172 /* Calculate the rate factor values to set */ 1173 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; 1174 bcnrc_val /= tx_rate; 1175 1176 /* clear everything but the rate factor */ 1177 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | 1178 IXGBE_RTTBCNRC_RF_DEC_MASK; 1179 1180 /* enable the rate scheduler */ 1181 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; 1182 } 1183 1184 /* 1185 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM 1186 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported 1187 * and 0x004 otherwise. 1188 */ 1189 switch (hw->mac.type) { 1190 case ixgbe_mac_82599EB: 1191 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); 1192 break; 1193 case ixgbe_mac_X540: 1194 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); 1195 break; 1196 default: 1197 break; 1198 } 1199 1200 /* determine how many queues per pool based on VMDq mask */ 1201 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 1202 1203 /* write value for all Tx queues belonging to VF */ 1204 for (queue = 0; queue < queues_per_pool; queue++) { 1205 unsigned int reg_idx = (vf * queues_per_pool) + queue; 1206 1207 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); 1208 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); 1209 } 1210 } 1211 1212 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) 1213 { 1214 int i; 1215 1216 /* VF Tx rate limit was not set */ 1217 if (!adapter->vf_rate_link_speed) 1218 return; 1219 1220 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { 1221 adapter->vf_rate_link_speed = 0; 1222 dev_info(&adapter->pdev->dev, 1223 "Link speed has been changed. VF Transmit rate is disabled\n"); 1224 } 1225 1226 for (i = 0; i < adapter->num_vfs; i++) { 1227 if (!adapter->vf_rate_link_speed) 1228 adapter->vfinfo[i].tx_rate = 0; 1229 1230 ixgbe_set_vf_rate_limit(adapter, i); 1231 } 1232 } 1233 1234 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) 1235 { 1236 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1237 int link_speed; 1238 1239 /* verify VF is active */ 1240 if (vf >= adapter->num_vfs) 1241 return -EINVAL; 1242 1243 /* verify link is up */ 1244 if (!adapter->link_up) 1245 return -EINVAL; 1246 1247 /* verify we are linked at 10Gbps */ 1248 link_speed = ixgbe_link_mbps(adapter); 1249 if (link_speed != 10000) 1250 return -EINVAL; 1251 1252 /* rate limit cannot be less than 10Mbs or greater than link speed */ 1253 if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed))) 1254 return -EINVAL; 1255 1256 /* store values */ 1257 adapter->vf_rate_link_speed = link_speed; 1258 adapter->vfinfo[vf].tx_rate = tx_rate; 1259 1260 /* update hardware configuration */ 1261 ixgbe_set_vf_rate_limit(adapter, vf); 1262 1263 return 0; 1264 } 1265 1266 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) 1267 { 1268 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1269 int vf_target_reg = vf >> 3; 1270 int vf_target_shift = vf % 8; 1271 struct ixgbe_hw *hw = &adapter->hw; 1272 u32 regval; 1273 1274 adapter->vfinfo[vf].spoofchk_enabled = setting; 1275 1276 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); 1277 regval &= ~(1 << vf_target_shift); 1278 regval |= (setting << vf_target_shift); 1279 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); 1280 1281 if (adapter->vfinfo[vf].vlan_count) { 1282 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; 1283 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); 1284 regval &= ~(1 << vf_target_shift); 1285 regval |= (setting << vf_target_shift); 1286 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); 1287 } 1288 1289 return 0; 1290 } 1291 1292 int ixgbe_ndo_get_vf_config(struct net_device *netdev, 1293 int vf, struct ifla_vf_info *ivi) 1294 { 1295 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1296 if (vf >= adapter->num_vfs) 1297 return -EINVAL; 1298 ivi->vf = vf; 1299 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); 1300 ivi->tx_rate = adapter->vfinfo[vf].tx_rate; 1301 ivi->vlan = adapter->vfinfo[vf].pf_vlan; 1302 ivi->qos = adapter->vfinfo[vf].pf_qos; 1303 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; 1304 return 0; 1305 } 1306