1 /******************************************************************************* 2 3 Intel 10 Gigabit PCI Express Linux driver 4 Copyright(c) 1999 - 2014 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 list_add(&mv_list->l, &adapter->vf_mvs.l); 76 mv_list++; 77 } 78 } 79 80 /* Initialize default switching mode VEB */ 81 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); 82 adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB; 83 84 /* If call to enable VFs succeeded then allocate memory 85 * for per VF control structures. 86 */ 87 adapter->vfinfo = 88 kcalloc(adapter->num_vfs, 89 sizeof(struct vf_data_storage), GFP_KERNEL); 90 if (adapter->vfinfo) { 91 /* limit trafffic classes based on VFs enabled */ 92 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && 93 (adapter->num_vfs < 16)) { 94 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; 95 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; 96 } else if (adapter->num_vfs < 32) { 97 adapter->dcb_cfg.num_tcs.pg_tcs = 4; 98 adapter->dcb_cfg.num_tcs.pfc_tcs = 4; 99 } else { 100 adapter->dcb_cfg.num_tcs.pg_tcs = 1; 101 adapter->dcb_cfg.num_tcs.pfc_tcs = 1; 102 } 103 104 /* We do not support RSS w/ SR-IOV */ 105 adapter->ring_feature[RING_F_RSS].limit = 1; 106 107 /* Disable RSC when in SR-IOV mode */ 108 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | 109 IXGBE_FLAG2_RSC_ENABLED); 110 111 /* enable spoof checking for all VFs */ 112 for (i = 0; i < adapter->num_vfs; i++) 113 adapter->vfinfo[i].spoofchk_enabled = true; 114 return 0; 115 } 116 117 return -ENOMEM; 118 } 119 120 /* Note this function is called when the user wants to enable SR-IOV 121 * VFs using the now deprecated module parameter 122 */ 123 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter) 124 { 125 int pre_existing_vfs = 0; 126 127 pre_existing_vfs = pci_num_vf(adapter->pdev); 128 if (!pre_existing_vfs && !adapter->num_vfs) 129 return; 130 131 /* If there are pre-existing VFs then we have to force 132 * use of that many - over ride any module parameter value. 133 * This may result from the user unloading the PF driver 134 * while VFs were assigned to guest VMs or because the VFs 135 * have been created via the new PCI SR-IOV sysfs interface. 136 */ 137 if (pre_existing_vfs) { 138 adapter->num_vfs = pre_existing_vfs; 139 dev_warn(&adapter->pdev->dev, 140 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n"); 141 } else { 142 int err; 143 /* 144 * The 82599 supports up to 64 VFs per physical function 145 * but this implementation limits allocation to 63 so that 146 * basic networking resources are still available to the 147 * physical function. If the user requests greater thn 148 * 63 VFs then it is an error - reset to default of zero. 149 */ 150 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, IXGBE_MAX_VFS_DRV_LIMIT); 151 152 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); 153 if (err) { 154 e_err(probe, "Failed to enable PCI sriov: %d\n", err); 155 adapter->num_vfs = 0; 156 return; 157 } 158 } 159 160 if (!__ixgbe_enable_sriov(adapter)) 161 return; 162 163 /* If we have gotten to this point then there is no memory available 164 * to manage the VF devices - print message and bail. 165 */ 166 e_err(probe, "Unable to allocate memory for VF Data Storage - " 167 "SRIOV disabled\n"); 168 ixgbe_disable_sriov(adapter); 169 } 170 171 #endif /* #ifdef CONFIG_PCI_IOV */ 172 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) 173 { 174 struct ixgbe_hw *hw = &adapter->hw; 175 u32 gpie; 176 u32 vmdctl; 177 int rss; 178 179 /* set num VFs to 0 to prevent access to vfinfo */ 180 adapter->num_vfs = 0; 181 182 /* free VF control structures */ 183 kfree(adapter->vfinfo); 184 adapter->vfinfo = NULL; 185 186 /* free macvlan list */ 187 kfree(adapter->mv_list); 188 adapter->mv_list = NULL; 189 190 /* if SR-IOV is already disabled then there is nothing to do */ 191 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) 192 return 0; 193 194 #ifdef CONFIG_PCI_IOV 195 /* 196 * If our VFs are assigned we cannot shut down SR-IOV 197 * without causing issues, so just leave the hardware 198 * available but disabled 199 */ 200 if (pci_vfs_assigned(adapter->pdev)) { 201 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); 202 return -EPERM; 203 } 204 /* disable iov and allow time for transactions to clear */ 205 pci_disable_sriov(adapter->pdev); 206 #endif 207 208 /* turn off device IOV mode */ 209 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); 210 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); 211 gpie &= ~IXGBE_GPIE_VTMODE_MASK; 212 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); 213 214 /* set default pool back to 0 */ 215 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); 216 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; 217 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); 218 IXGBE_WRITE_FLUSH(hw); 219 220 /* Disable VMDq flag so device will be set in VM mode */ 221 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) { 222 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; 223 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; 224 rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); 225 } else { 226 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus()); 227 } 228 229 adapter->ring_feature[RING_F_VMDQ].offset = 0; 230 adapter->ring_feature[RING_F_RSS].limit = rss; 231 232 /* take a breather then clean up driver data */ 233 msleep(100); 234 return 0; 235 } 236 237 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) 238 { 239 #ifdef CONFIG_PCI_IOV 240 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 241 int err = 0; 242 int i; 243 int pre_existing_vfs = pci_num_vf(dev); 244 245 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 246 err = ixgbe_disable_sriov(adapter); 247 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 248 return num_vfs; 249 250 if (err) 251 return err; 252 253 /* While the SR-IOV capability structure reports total VFs to be 254 * 64 we limit the actual number that can be allocated to 63 so 255 * that some transmit/receive resources can be reserved to the 256 * PF. The PCI bus driver already checks for other values out of 257 * range. 258 */ 259 if (num_vfs > IXGBE_MAX_VFS_DRV_LIMIT) 260 return -EPERM; 261 262 adapter->num_vfs = num_vfs; 263 264 err = __ixgbe_enable_sriov(adapter); 265 if (err) 266 return err; 267 268 for (i = 0; i < adapter->num_vfs; i++) 269 ixgbe_vf_configuration(dev, (i | 0x10000000)); 270 271 err = pci_enable_sriov(dev, num_vfs); 272 if (err) { 273 e_dev_warn("Failed to enable PCI sriov: %d\n", err); 274 return err; 275 } 276 ixgbe_sriov_reinit(adapter); 277 278 return num_vfs; 279 #else 280 return 0; 281 #endif 282 } 283 284 static int ixgbe_pci_sriov_disable(struct pci_dev *dev) 285 { 286 struct ixgbe_adapter *adapter = pci_get_drvdata(dev); 287 int err; 288 #ifdef CONFIG_PCI_IOV 289 u32 current_flags = adapter->flags; 290 #endif 291 292 err = ixgbe_disable_sriov(adapter); 293 294 /* Only reinit if no error and state changed */ 295 #ifdef CONFIG_PCI_IOV 296 if (!err && current_flags != adapter->flags) 297 ixgbe_sriov_reinit(adapter); 298 #endif 299 300 return err; 301 } 302 303 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs) 304 { 305 if (num_vfs == 0) 306 return ixgbe_pci_sriov_disable(dev); 307 else 308 return ixgbe_pci_sriov_enable(dev, num_vfs); 309 } 310 311 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, 312 u32 *msgbuf, u32 vf) 313 { 314 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) 315 >> IXGBE_VT_MSGINFO_SHIFT; 316 u16 *hash_list = (u16 *)&msgbuf[1]; 317 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 318 struct ixgbe_hw *hw = &adapter->hw; 319 int i; 320 u32 vector_bit; 321 u32 vector_reg; 322 u32 mta_reg; 323 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); 324 325 /* only so many hash values supported */ 326 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); 327 328 /* 329 * salt away the number of multi cast addresses assigned 330 * to this VF for later use to restore when the PF multi cast 331 * list changes 332 */ 333 vfinfo->num_vf_mc_hashes = entries; 334 335 /* 336 * VFs are limited to using the MTA hash table for their multicast 337 * addresses 338 */ 339 for (i = 0; i < entries; i++) { 340 vfinfo->vf_mc_hashes[i] = hash_list[i]; 341 } 342 343 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { 344 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; 345 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; 346 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 347 mta_reg |= (1 << vector_bit); 348 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 349 } 350 vmolr |= IXGBE_VMOLR_ROMPE; 351 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); 352 353 return 0; 354 } 355 356 #ifdef CONFIG_PCI_IOV 357 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) 358 { 359 struct ixgbe_hw *hw = &adapter->hw; 360 struct vf_data_storage *vfinfo; 361 int i, j; 362 u32 vector_bit; 363 u32 vector_reg; 364 u32 mta_reg; 365 366 for (i = 0; i < adapter->num_vfs; i++) { 367 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i)); 368 vfinfo = &adapter->vfinfo[i]; 369 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { 370 hw->addr_ctrl.mta_in_use++; 371 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; 372 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; 373 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); 374 mta_reg |= (1 << vector_bit); 375 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); 376 } 377 378 if (vfinfo->num_vf_mc_hashes) 379 vmolr |= IXGBE_VMOLR_ROMPE; 380 else 381 vmolr &= ~IXGBE_VMOLR_ROMPE; 382 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr); 383 } 384 385 /* Restore any VF macvlans */ 386 ixgbe_full_sync_mac_table(adapter); 387 } 388 #endif 389 390 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, 391 u32 vf) 392 { 393 /* VLAN 0 is a special case, don't allow it to be removed */ 394 if (!vid && !add) 395 return 0; 396 397 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); 398 } 399 400 static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) 401 { 402 struct ixgbe_hw *hw = &adapter->hw; 403 int max_frame = msgbuf[1]; 404 u32 max_frs; 405 406 /* 407 * For 82599EB we have to keep all PFs and VFs operating with 408 * the same max_frame value in order to avoid sending an oversize 409 * frame to a VF. In order to guarantee this is handled correctly 410 * for all cases we have several special exceptions to take into 411 * account before we can enable the VF for receive 412 */ 413 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 414 struct net_device *dev = adapter->netdev; 415 int pf_max_frame = dev->mtu + ETH_HLEN; 416 u32 reg_offset, vf_shift, vfre; 417 s32 err = 0; 418 419 #ifdef CONFIG_FCOE 420 if (dev->features & NETIF_F_FCOE_MTU) 421 pf_max_frame = max_t(int, pf_max_frame, 422 IXGBE_FCOE_JUMBO_FRAME_SIZE); 423 424 #endif /* CONFIG_FCOE */ 425 switch (adapter->vfinfo[vf].vf_api) { 426 case ixgbe_mbox_api_11: 427 /* 428 * Version 1.1 supports jumbo frames on VFs if PF has 429 * jumbo frames enabled which means legacy VFs are 430 * disabled 431 */ 432 if (pf_max_frame > ETH_FRAME_LEN) 433 break; 434 default: 435 /* 436 * If the PF or VF are running w/ jumbo frames enabled 437 * we need to shut down the VF Rx path as we cannot 438 * support jumbo frames on legacy VFs 439 */ 440 if ((pf_max_frame > ETH_FRAME_LEN) || 441 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) 442 err = -EINVAL; 443 break; 444 } 445 446 /* determine VF receive enable location */ 447 vf_shift = vf % 32; 448 reg_offset = vf / 32; 449 450 /* enable or disable receive depending on error */ 451 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 452 if (err) 453 vfre &= ~(1 << vf_shift); 454 else 455 vfre |= 1 << vf_shift; 456 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); 457 458 if (err) { 459 e_err(drv, "VF max_frame %d out of range\n", max_frame); 460 return err; 461 } 462 } 463 464 /* MTU < 68 is an error and causes problems on some kernels */ 465 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { 466 e_err(drv, "VF max_frame %d out of range\n", max_frame); 467 return -EINVAL; 468 } 469 470 /* pull current max frame size from hardware */ 471 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); 472 max_frs &= IXGBE_MHADD_MFS_MASK; 473 max_frs >>= IXGBE_MHADD_MFS_SHIFT; 474 475 if (max_frs < max_frame) { 476 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; 477 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); 478 } 479 480 e_info(hw, "VF requests change max MTU to %d\n", max_frame); 481 482 return 0; 483 } 484 485 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) 486 { 487 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); 488 vmolr |= IXGBE_VMOLR_BAM; 489 if (aupe) 490 vmolr |= IXGBE_VMOLR_AUPE; 491 else 492 vmolr &= ~IXGBE_VMOLR_AUPE; 493 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); 494 } 495 496 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) 497 { 498 struct ixgbe_hw *hw = &adapter->hw; 499 500 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); 501 } 502 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) 503 { 504 struct ixgbe_hw *hw = &adapter->hw; 505 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; 506 u8 num_tcs = netdev_get_num_tc(adapter->netdev); 507 508 /* add PF assigned VLAN or VLAN 0 */ 509 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); 510 511 /* reset offloads to defaults */ 512 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); 513 514 /* set outgoing tags for VFs */ 515 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { 516 ixgbe_clear_vmvir(adapter, vf); 517 } else { 518 if (vfinfo->pf_qos || !num_tcs) 519 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 520 vfinfo->pf_qos, vf); 521 else 522 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, 523 adapter->default_up, vf); 524 525 if (vfinfo->spoofchk_enabled) 526 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 527 } 528 529 /* reset multicast table array for vf */ 530 adapter->vfinfo[vf].num_vf_mc_hashes = 0; 531 532 /* Flush and reset the mta with the new values */ 533 ixgbe_set_rx_mode(adapter->netdev); 534 535 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); 536 537 /* reset VF api back to unknown */ 538 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; 539 } 540 541 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, 542 int vf, unsigned char *mac_addr) 543 { 544 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); 545 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN); 546 ixgbe_add_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); 547 548 return 0; 549 } 550 551 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, 552 int vf, int index, unsigned char *mac_addr) 553 { 554 struct list_head *pos; 555 struct vf_macvlans *entry; 556 557 if (index <= 1) { 558 list_for_each(pos, &adapter->vf_mvs.l) { 559 entry = list_entry(pos, struct vf_macvlans, l); 560 if (entry->vf == vf) { 561 entry->vf = -1; 562 entry->free = true; 563 entry->is_macvlan = false; 564 ixgbe_del_mac_filter(adapter, 565 entry->vf_macvlan, vf); 566 } 567 } 568 } 569 570 /* 571 * If index was zero then we were asked to clear the uc list 572 * for the VF. We're done. 573 */ 574 if (!index) 575 return 0; 576 577 entry = NULL; 578 579 list_for_each(pos, &adapter->vf_mvs.l) { 580 entry = list_entry(pos, struct vf_macvlans, l); 581 if (entry->free) 582 break; 583 } 584 585 /* 586 * If we traversed the entire list and didn't find a free entry 587 * then we're out of space on the RAR table. Also entry may 588 * be NULL because the original memory allocation for the list 589 * failed, which is not fatal but does mean we can't support 590 * VF requests for MACVLAN because we couldn't allocate 591 * memory for the list management required. 592 */ 593 if (!entry || !entry->free) 594 return -ENOSPC; 595 596 entry->free = false; 597 entry->is_macvlan = true; 598 entry->vf = vf; 599 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); 600 601 ixgbe_add_mac_filter(adapter, mac_addr, vf); 602 603 return 0; 604 } 605 606 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) 607 { 608 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); 609 unsigned int vfn = (event_mask & 0x3f); 610 611 bool enable = ((event_mask & 0x10000000U) != 0); 612 613 if (enable) 614 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses); 615 616 return 0; 617 } 618 619 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) 620 { 621 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 622 struct ixgbe_hw *hw = &adapter->hw; 623 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; 624 u32 reg, reg_offset, vf_shift; 625 u32 msgbuf[4] = {0, 0, 0, 0}; 626 u8 *addr = (u8 *)(&msgbuf[1]); 627 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 628 int i; 629 630 e_info(probe, "VF Reset msg received from vf %d\n", vf); 631 632 /* reset the filters for the device */ 633 ixgbe_vf_reset_event(adapter, vf); 634 635 /* set vf mac address */ 636 if (!is_zero_ether_addr(vf_mac)) 637 ixgbe_set_vf_mac(adapter, vf, vf_mac); 638 639 vf_shift = vf % 32; 640 reg_offset = vf / 32; 641 642 /* enable transmit for vf */ 643 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); 644 reg |= 1 << vf_shift; 645 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); 646 647 /* force drop enable for all VF Rx queues */ 648 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) { 649 /* flush previous write */ 650 IXGBE_WRITE_FLUSH(hw); 651 652 /* indicate to hardware that we want to set drop enable */ 653 reg = IXGBE_QDE_WRITE | IXGBE_QDE_ENABLE; 654 reg |= i << IXGBE_QDE_IDX_SHIFT; 655 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg); 656 } 657 658 /* enable receive for vf */ 659 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); 660 reg |= 1 << vf_shift; 661 /* 662 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. 663 * For more info take a look at ixgbe_set_vf_lpe 664 */ 665 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 666 struct net_device *dev = adapter->netdev; 667 int pf_max_frame = dev->mtu + ETH_HLEN; 668 669 #ifdef CONFIG_FCOE 670 if (dev->features & NETIF_F_FCOE_MTU) 671 pf_max_frame = max_t(int, pf_max_frame, 672 IXGBE_FCOE_JUMBO_FRAME_SIZE); 673 674 #endif /* CONFIG_FCOE */ 675 if (pf_max_frame > ETH_FRAME_LEN) 676 reg &= ~(1 << vf_shift); 677 } 678 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); 679 680 /* enable VF mailbox for further messages */ 681 adapter->vfinfo[vf].clear_to_send = true; 682 683 /* Enable counting of spoofed packets in the SSVPC register */ 684 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); 685 reg |= (1 << vf_shift); 686 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); 687 688 /* 689 * Reset the VFs TDWBAL and TDWBAH registers 690 * which are not cleared by an FLR 691 */ 692 for (i = 0; i < q_per_pool; i++) { 693 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0); 694 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0); 695 } 696 697 /* reply to reset with ack and vf mac address */ 698 msgbuf[0] = IXGBE_VF_RESET; 699 if (!is_zero_ether_addr(vf_mac)) { 700 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 701 memcpy(addr, vf_mac, ETH_ALEN); 702 } else { 703 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 704 dev_warn(&adapter->pdev->dev, 705 "VF %d has no MAC address assigned, you may have to assign one manually\n", 706 vf); 707 } 708 709 /* 710 * Piggyback the multicast filter type so VF can compute the 711 * correct vectors 712 */ 713 msgbuf[3] = hw->mac.mc_filter_type; 714 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); 715 716 return 0; 717 } 718 719 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, 720 u32 *msgbuf, u32 vf) 721 { 722 u8 *new_mac = ((u8 *)(&msgbuf[1])); 723 724 if (!is_valid_ether_addr(new_mac)) { 725 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 726 return -1; 727 } 728 729 if (adapter->vfinfo[vf].pf_set_mac && 730 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) { 731 e_warn(drv, 732 "VF %d attempted to override administratively set MAC address\n" 733 "Reload the VF driver to resume operations\n", 734 vf); 735 return -1; 736 } 737 738 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0; 739 } 740 741 static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan) 742 { 743 u32 vlvf; 744 s32 regindex; 745 746 /* short cut the special case */ 747 if (vlan == 0) 748 return 0; 749 750 /* Search for the vlan id in the VLVF entries */ 751 for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { 752 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); 753 if ((vlvf & VLAN_VID_MASK) == vlan) 754 break; 755 } 756 757 /* Return a negative value if not found */ 758 if (regindex >= IXGBE_VLVF_ENTRIES) 759 regindex = -1; 760 761 return regindex; 762 } 763 764 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, 765 u32 *msgbuf, u32 vf) 766 { 767 struct ixgbe_hw *hw = &adapter->hw; 768 int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT; 769 int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); 770 int err; 771 s32 reg_ndx; 772 u32 vlvf; 773 u32 bits; 774 u8 tcs = netdev_get_num_tc(adapter->netdev); 775 776 if (adapter->vfinfo[vf].pf_vlan || tcs) { 777 e_warn(drv, 778 "VF %d attempted to override administratively set VLAN configuration\n" 779 "Reload the VF driver to resume operations\n", 780 vf); 781 return -1; 782 } 783 784 if (add) 785 adapter->vfinfo[vf].vlan_count++; 786 else if (adapter->vfinfo[vf].vlan_count) 787 adapter->vfinfo[vf].vlan_count--; 788 789 /* in case of promiscuous mode any VLAN filter set for a VF must 790 * also have the PF pool added to it. 791 */ 792 if (add && adapter->netdev->flags & IFF_PROMISC) 793 err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); 794 795 err = ixgbe_set_vf_vlan(adapter, add, vid, vf); 796 if (!err && adapter->vfinfo[vf].spoofchk_enabled) 797 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 798 799 /* Go through all the checks to see if the VLAN filter should 800 * be wiped completely. 801 */ 802 if (!add && adapter->netdev->flags & IFF_PROMISC) { 803 reg_ndx = ixgbe_find_vlvf_entry(hw, vid); 804 if (reg_ndx < 0) 805 return err; 806 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx)); 807 /* See if any other pools are set for this VLAN filter 808 * entry other than the PF. 809 */ 810 if (VMDQ_P(0) < 32) { 811 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); 812 bits &= ~(1 << VMDQ_P(0)); 813 bits |= IXGBE_READ_REG(hw, 814 IXGBE_VLVFB(reg_ndx * 2) + 1); 815 } else { 816 bits = IXGBE_READ_REG(hw, 817 IXGBE_VLVFB(reg_ndx * 2) + 1); 818 bits &= ~(1 << (VMDQ_P(0) - 32)); 819 bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); 820 } 821 822 /* If the filter was removed then ensure PF pool bit 823 * is cleared if the PF only added itself to the pool 824 * because the PF is in promiscuous mode. 825 */ 826 if ((vlvf & VLAN_VID_MASK) == vid && 827 !test_bit(vid, adapter->active_vlans) && !bits) 828 ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); 829 } 830 831 return err; 832 } 833 834 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, 835 u32 *msgbuf, u32 vf) 836 { 837 u8 *new_mac = ((u8 *)(&msgbuf[1])); 838 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> 839 IXGBE_VT_MSGINFO_SHIFT; 840 int err; 841 842 if (adapter->vfinfo[vf].pf_set_mac && index > 0) { 843 e_warn(drv, 844 "VF %d requested MACVLAN filter but is administratively denied\n", 845 vf); 846 return -1; 847 } 848 849 /* An non-zero index indicates the VF is setting a filter */ 850 if (index) { 851 if (!is_valid_ether_addr(new_mac)) { 852 e_warn(drv, "VF %d attempted to set invalid mac\n", vf); 853 return -1; 854 } 855 856 /* 857 * If the VF is allowed to set MAC filters then turn off 858 * anti-spoofing to avoid false positives. 859 */ 860 if (adapter->vfinfo[vf].spoofchk_enabled) 861 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); 862 } 863 864 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); 865 if (err == -ENOSPC) 866 e_warn(drv, 867 "VF %d has requested a MACVLAN filter but there is no space for it\n", 868 vf); 869 870 return err < 0; 871 } 872 873 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, 874 u32 *msgbuf, u32 vf) 875 { 876 int api = msgbuf[1]; 877 878 switch (api) { 879 case ixgbe_mbox_api_10: 880 case ixgbe_mbox_api_11: 881 adapter->vfinfo[vf].vf_api = api; 882 return 0; 883 default: 884 break; 885 } 886 887 e_info(drv, "VF %d requested invalid api version %u\n", vf, api); 888 889 return -1; 890 } 891 892 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, 893 u32 *msgbuf, u32 vf) 894 { 895 struct net_device *dev = adapter->netdev; 896 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 897 unsigned int default_tc = 0; 898 u8 num_tcs = netdev_get_num_tc(dev); 899 900 /* verify the PF is supporting the correct APIs */ 901 switch (adapter->vfinfo[vf].vf_api) { 902 case ixgbe_mbox_api_20: 903 case ixgbe_mbox_api_11: 904 break; 905 default: 906 return -1; 907 } 908 909 /* only allow 1 Tx queue for bandwidth limiting */ 910 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 911 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); 912 913 /* if TCs > 1 determine which TC belongs to default user priority */ 914 if (num_tcs > 1) 915 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); 916 917 /* notify VF of need for VLAN tag stripping, and correct queue */ 918 if (num_tcs) 919 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; 920 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) 921 msgbuf[IXGBE_VF_TRANS_VLAN] = 1; 922 else 923 msgbuf[IXGBE_VF_TRANS_VLAN] = 0; 924 925 /* notify VF of default queue */ 926 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; 927 928 return 0; 929 } 930 931 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) 932 { 933 u32 mbx_size = IXGBE_VFMAILBOX_SIZE; 934 u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; 935 struct ixgbe_hw *hw = &adapter->hw; 936 s32 retval; 937 938 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); 939 940 if (retval) { 941 pr_err("Error receiving message from VF\n"); 942 return retval; 943 } 944 945 /* this is a message we already processed, do nothing */ 946 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) 947 return 0; 948 949 /* flush the ack before we write any messages back */ 950 IXGBE_WRITE_FLUSH(hw); 951 952 if (msgbuf[0] == IXGBE_VF_RESET) 953 return ixgbe_vf_reset_msg(adapter, vf); 954 955 /* 956 * until the vf completes a virtual function reset it should not be 957 * allowed to start any configuration. 958 */ 959 if (!adapter->vfinfo[vf].clear_to_send) { 960 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 961 ixgbe_write_mbx(hw, msgbuf, 1, vf); 962 return 0; 963 } 964 965 switch ((msgbuf[0] & 0xFFFF)) { 966 case IXGBE_VF_SET_MAC_ADDR: 967 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); 968 break; 969 case IXGBE_VF_SET_MULTICAST: 970 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); 971 break; 972 case IXGBE_VF_SET_VLAN: 973 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); 974 break; 975 case IXGBE_VF_SET_LPE: 976 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); 977 break; 978 case IXGBE_VF_SET_MACVLAN: 979 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); 980 break; 981 case IXGBE_VF_API_NEGOTIATE: 982 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); 983 break; 984 case IXGBE_VF_GET_QUEUES: 985 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); 986 break; 987 default: 988 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); 989 retval = IXGBE_ERR_MBX; 990 break; 991 } 992 993 /* notify the VF of the results of what it sent us */ 994 if (retval) 995 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; 996 else 997 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; 998 999 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; 1000 1001 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); 1002 1003 return retval; 1004 } 1005 1006 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) 1007 { 1008 struct ixgbe_hw *hw = &adapter->hw; 1009 u32 msg = IXGBE_VT_MSGTYPE_NACK; 1010 1011 /* if device isn't clear to send it shouldn't be reading either */ 1012 if (!adapter->vfinfo[vf].clear_to_send) 1013 ixgbe_write_mbx(hw, &msg, 1, vf); 1014 } 1015 1016 void ixgbe_msg_task(struct ixgbe_adapter *adapter) 1017 { 1018 struct ixgbe_hw *hw = &adapter->hw; 1019 u32 vf; 1020 1021 for (vf = 0; vf < adapter->num_vfs; vf++) { 1022 /* process any reset requests */ 1023 if (!ixgbe_check_for_rst(hw, vf)) 1024 ixgbe_vf_reset_event(adapter, vf); 1025 1026 /* process any messages pending */ 1027 if (!ixgbe_check_for_msg(hw, vf)) 1028 ixgbe_rcv_msg_from_vf(adapter, vf); 1029 1030 /* process any acks */ 1031 if (!ixgbe_check_for_ack(hw, vf)) 1032 ixgbe_rcv_ack_from_vf(adapter, vf); 1033 } 1034 } 1035 1036 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) 1037 { 1038 struct ixgbe_hw *hw = &adapter->hw; 1039 1040 /* disable transmit and receive for all vfs */ 1041 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); 1042 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); 1043 1044 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); 1045 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); 1046 } 1047 1048 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) 1049 { 1050 struct ixgbe_hw *hw = &adapter->hw; 1051 u32 ping; 1052 int i; 1053 1054 for (i = 0 ; i < adapter->num_vfs; i++) { 1055 ping = IXGBE_PF_CONTROL_MSG; 1056 if (adapter->vfinfo[i].clear_to_send) 1057 ping |= IXGBE_VT_MSGTYPE_CTS; 1058 ixgbe_write_mbx(hw, &ping, 1, i); 1059 } 1060 } 1061 1062 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) 1063 { 1064 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1065 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) 1066 return -EINVAL; 1067 adapter->vfinfo[vf].pf_set_mac = true; 1068 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); 1069 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" 1070 " change effective."); 1071 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1072 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," 1073 " but the PF device is not up.\n"); 1074 dev_warn(&adapter->pdev->dev, "Bring the PF device up before" 1075 " attempting to use the VF device.\n"); 1076 } 1077 return ixgbe_set_vf_mac(adapter, vf, mac); 1078 } 1079 1080 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) 1081 { 1082 int err = 0; 1083 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1084 struct ixgbe_hw *hw = &adapter->hw; 1085 1086 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) 1087 return -EINVAL; 1088 if (vlan || qos) { 1089 if (adapter->vfinfo[vf].pf_vlan) 1090 err = ixgbe_set_vf_vlan(adapter, false, 1091 adapter->vfinfo[vf].pf_vlan, 1092 vf); 1093 if (err) 1094 goto out; 1095 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); 1096 if (err) 1097 goto out; 1098 ixgbe_set_vmvir(adapter, vlan, qos, vf); 1099 ixgbe_set_vmolr(hw, vf, false); 1100 if (adapter->vfinfo[vf].spoofchk_enabled) 1101 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); 1102 adapter->vfinfo[vf].vlan_count++; 1103 adapter->vfinfo[vf].pf_vlan = vlan; 1104 adapter->vfinfo[vf].pf_qos = qos; 1105 dev_info(&adapter->pdev->dev, 1106 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); 1107 if (test_bit(__IXGBE_DOWN, &adapter->state)) { 1108 dev_warn(&adapter->pdev->dev, 1109 "The VF VLAN has been set," 1110 " but the PF device is not up.\n"); 1111 dev_warn(&adapter->pdev->dev, 1112 "Bring the PF device up before" 1113 " attempting to use the VF device.\n"); 1114 } 1115 } else { 1116 err = ixgbe_set_vf_vlan(adapter, false, 1117 adapter->vfinfo[vf].pf_vlan, vf); 1118 ixgbe_clear_vmvir(adapter, vf); 1119 ixgbe_set_vmolr(hw, vf, true); 1120 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); 1121 if (adapter->vfinfo[vf].vlan_count) 1122 adapter->vfinfo[vf].vlan_count--; 1123 adapter->vfinfo[vf].pf_vlan = 0; 1124 adapter->vfinfo[vf].pf_qos = 0; 1125 } 1126 out: 1127 return err; 1128 } 1129 1130 static int ixgbe_link_mbps(struct ixgbe_adapter *adapter) 1131 { 1132 switch (adapter->link_speed) { 1133 case IXGBE_LINK_SPEED_100_FULL: 1134 return 100; 1135 case IXGBE_LINK_SPEED_1GB_FULL: 1136 return 1000; 1137 case IXGBE_LINK_SPEED_10GB_FULL: 1138 return 10000; 1139 default: 1140 return 0; 1141 } 1142 } 1143 1144 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) 1145 { 1146 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; 1147 struct ixgbe_hw *hw = &adapter->hw; 1148 u32 bcnrc_val = 0; 1149 u16 queue, queues_per_pool; 1150 u16 tx_rate = adapter->vfinfo[vf].tx_rate; 1151 1152 if (tx_rate) { 1153 /* start with base link speed value */ 1154 bcnrc_val = adapter->vf_rate_link_speed; 1155 1156 /* Calculate the rate factor values to set */ 1157 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; 1158 bcnrc_val /= tx_rate; 1159 1160 /* clear everything but the rate factor */ 1161 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | 1162 IXGBE_RTTBCNRC_RF_DEC_MASK; 1163 1164 /* enable the rate scheduler */ 1165 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; 1166 } 1167 1168 /* 1169 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM 1170 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported 1171 * and 0x004 otherwise. 1172 */ 1173 switch (hw->mac.type) { 1174 case ixgbe_mac_82599EB: 1175 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); 1176 break; 1177 case ixgbe_mac_X540: 1178 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); 1179 break; 1180 default: 1181 break; 1182 } 1183 1184 /* determine how many queues per pool based on VMDq mask */ 1185 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); 1186 1187 /* write value for all Tx queues belonging to VF */ 1188 for (queue = 0; queue < queues_per_pool; queue++) { 1189 unsigned int reg_idx = (vf * queues_per_pool) + queue; 1190 1191 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); 1192 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); 1193 } 1194 } 1195 1196 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) 1197 { 1198 int i; 1199 1200 /* VF Tx rate limit was not set */ 1201 if (!adapter->vf_rate_link_speed) 1202 return; 1203 1204 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { 1205 adapter->vf_rate_link_speed = 0; 1206 dev_info(&adapter->pdev->dev, 1207 "Link speed has been changed. VF Transmit rate is disabled\n"); 1208 } 1209 1210 for (i = 0; i < adapter->num_vfs; i++) { 1211 if (!adapter->vf_rate_link_speed) 1212 adapter->vfinfo[i].tx_rate = 0; 1213 1214 ixgbe_set_vf_rate_limit(adapter, i); 1215 } 1216 } 1217 1218 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate, 1219 int max_tx_rate) 1220 { 1221 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1222 int link_speed; 1223 1224 /* verify VF is active */ 1225 if (vf >= adapter->num_vfs) 1226 return -EINVAL; 1227 1228 /* verify link is up */ 1229 if (!adapter->link_up) 1230 return -EINVAL; 1231 1232 /* verify we are linked at 10Gbps */ 1233 link_speed = ixgbe_link_mbps(adapter); 1234 if (link_speed != 10000) 1235 return -EINVAL; 1236 1237 if (min_tx_rate) 1238 return -EINVAL; 1239 1240 /* rate limit cannot be less than 10Mbs or greater than link speed */ 1241 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed))) 1242 return -EINVAL; 1243 1244 /* store values */ 1245 adapter->vf_rate_link_speed = link_speed; 1246 adapter->vfinfo[vf].tx_rate = max_tx_rate; 1247 1248 /* update hardware configuration */ 1249 ixgbe_set_vf_rate_limit(adapter, vf); 1250 1251 return 0; 1252 } 1253 1254 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) 1255 { 1256 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1257 int vf_target_reg = vf >> 3; 1258 int vf_target_shift = vf % 8; 1259 struct ixgbe_hw *hw = &adapter->hw; 1260 u32 regval; 1261 1262 adapter->vfinfo[vf].spoofchk_enabled = setting; 1263 1264 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); 1265 regval &= ~(1 << vf_target_shift); 1266 regval |= (setting << vf_target_shift); 1267 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); 1268 1269 if (adapter->vfinfo[vf].vlan_count) { 1270 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; 1271 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); 1272 regval &= ~(1 << vf_target_shift); 1273 regval |= (setting << vf_target_shift); 1274 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); 1275 } 1276 1277 return 0; 1278 } 1279 1280 int ixgbe_ndo_get_vf_config(struct net_device *netdev, 1281 int vf, struct ifla_vf_info *ivi) 1282 { 1283 struct ixgbe_adapter *adapter = netdev_priv(netdev); 1284 if (vf >= adapter->num_vfs) 1285 return -EINVAL; 1286 ivi->vf = vf; 1287 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); 1288 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate; 1289 ivi->min_tx_rate = 0; 1290 ivi->vlan = adapter->vfinfo[vf].pf_vlan; 1291 ivi->qos = adapter->vfinfo[vf].pf_qos; 1292 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; 1293 return 0; 1294 } 1295