1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
4 #include <linux/types.h>
5 #include <linux/module.h>
7 #include <linux/netdevice.h>
8 #include <linux/vmalloc.h>
9 #include <linux/string.h>
12 #include <linux/tcp.h>
13 #include <linux/ipv6.h>
14 #include <linux/if_bridge.h>
15 #ifdef NETIF_F_HW_VLAN_CTAG_TX
16 #include <linux/if_vlan.h>
20 #include "ixgbe_type.h"
21 #include "ixgbe_sriov.h"
24 static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
27 struct ixgbe_hw *hw = &adapter->hw;
28 struct vf_macvlans *mv_list;
29 int num_vf_macvlans, i;
31 num_vf_macvlans = hw->mac.num_rar_entries -
32 (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
36 mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
39 /* Initialize list of VF macvlans */
40 INIT_LIST_HEAD(&adapter->vf_mvs.l);
41 for (i = 0; i < num_vf_macvlans; i++) {
43 mv_list[i].free = true;
44 list_add(&mv_list[i].l, &adapter->vf_mvs.l);
46 adapter->mv_list = mv_list;
50 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
53 struct ixgbe_hw *hw = &adapter->hw;
56 if (adapter->xdp_prog) {
57 e_warn(probe, "SRIOV is not supported with XDP\n");
61 /* Enable VMDq flag so device will be set in VM mode */
62 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
63 IXGBE_FLAG_VMDQ_ENABLED;
65 /* Allocate memory for per VF control structures */
66 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
71 adapter->num_vfs = num_vfs;
73 ixgbe_alloc_vf_macvlans(adapter, num_vfs);
74 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
76 /* Initialize default switching mode VEB */
77 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
78 adapter->bridge_mode = BRIDGE_MODE_VEB;
80 /* limit trafffic classes based on VFs enabled */
81 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
82 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
83 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
84 } else if (num_vfs < 32) {
85 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
86 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
88 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
89 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
92 /* Disable RSC when in SR-IOV mode */
93 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
94 IXGBE_FLAG2_RSC_ENABLED);
96 for (i = 0; i < num_vfs; i++) {
97 /* enable spoof checking for all VFs */
98 adapter->vfinfo[i].spoofchk_enabled = true;
99 adapter->vfinfo[i].link_enable = true;
101 /* We support VF RSS querying only for 82599 and x540
102 * devices at the moment. These devices share RSS
103 * indirection table and RSS hash key with PF therefore
104 * we want to disable the querying by default.
106 adapter->vfinfo[i].rss_query_enabled = false;
108 /* Untrust all VFs */
109 adapter->vfinfo[i].trusted = false;
111 /* set the default xcast mode */
112 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
115 e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
120 * ixgbe_get_vfs - Find and take references to all vf devices
121 * @adapter: Pointer to adapter struct
123 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
125 struct pci_dev *pdev = adapter->pdev;
126 u16 vendor = pdev->vendor;
127 struct pci_dev *vfdev;
132 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
135 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
137 vfdev = pci_get_device(vendor, vf_id, NULL);
138 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
139 if (!vfdev->is_virtfn)
141 if (vfdev->physfn != pdev)
143 if (vf >= adapter->num_vfs)
146 adapter->vfinfo[vf].vfdev = vfdev;
151 /* Note this function is called when the user wants to enable SR-IOV
152 * VFs using the now deprecated module parameter
154 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
156 int pre_existing_vfs = 0;
157 unsigned int num_vfs;
159 pre_existing_vfs = pci_num_vf(adapter->pdev);
160 if (!pre_existing_vfs && !max_vfs)
163 /* If there are pre-existing VFs then we have to force
164 * use of that many - over ride any module parameter value.
165 * This may result from the user unloading the PF driver
166 * while VFs were assigned to guest VMs or because the VFs
167 * have been created via the new PCI SR-IOV sysfs interface.
169 if (pre_existing_vfs) {
170 num_vfs = pre_existing_vfs;
171 dev_warn(&adapter->pdev->dev,
172 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
176 * The 82599 supports up to 64 VFs per physical function
177 * but this implementation limits allocation to 63 so that
178 * basic networking resources are still available to the
179 * physical function. If the user requests greater than
180 * 63 VFs then it is an error - reset to default of zero.
182 num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
184 err = pci_enable_sriov(adapter->pdev, num_vfs);
186 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
191 if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
192 ixgbe_get_vfs(adapter);
196 /* If we have gotten to this point then there is no memory available
197 * to manage the VF devices - print message and bail.
199 e_err(probe, "Unable to allocate memory for VF Data Storage - "
201 ixgbe_disable_sriov(adapter);
204 #endif /* #ifdef CONFIG_PCI_IOV */
205 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
207 unsigned int num_vfs = adapter->num_vfs, vf;
210 /* set num VFs to 0 to prevent access to vfinfo */
211 adapter->num_vfs = 0;
213 /* put the reference to all of the vf devices */
214 for (vf = 0; vf < num_vfs; ++vf) {
215 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
219 adapter->vfinfo[vf].vfdev = NULL;
223 /* free VF control structures */
224 kfree(adapter->vfinfo);
225 adapter->vfinfo = NULL;
227 /* free macvlan list */
228 kfree(adapter->mv_list);
229 adapter->mv_list = NULL;
231 /* if SR-IOV is already disabled then there is nothing to do */
232 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
235 #ifdef CONFIG_PCI_IOV
237 * If our VFs are assigned we cannot shut down SR-IOV
238 * without causing issues, so just leave the hardware
239 * available but disabled
241 if (pci_vfs_assigned(adapter->pdev)) {
242 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
245 /* disable iov and allow time for transactions to clear */
246 pci_disable_sriov(adapter->pdev);
249 /* Disable VMDq flag so device will be set in VM mode */
250 if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
251 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
252 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
253 rss = min_t(int, ixgbe_max_rss_indices(adapter),
256 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
259 adapter->ring_feature[RING_F_VMDQ].offset = 0;
260 adapter->ring_feature[RING_F_RSS].limit = rss;
262 /* take a breather then clean up driver data */
267 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
269 #ifdef CONFIG_PCI_IOV
270 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
271 int pre_existing_vfs = pci_num_vf(dev);
272 int err = 0, num_rx_pools, i, limit;
275 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
276 err = ixgbe_disable_sriov(adapter);
277 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
283 /* While the SR-IOV capability structure reports total VFs to be 64,
284 * we limit the actual number allocated as below based on two factors.
289 * First, we reserve some transmit/receive resources for the PF.
290 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
291 * account for this, so that we don't accidentally allocate more VFs
292 * than we have available pools. The PCI bus driver already checks for
293 * other values out of range.
295 num_tc = adapter->hw_tcs;
296 num_rx_pools = bitmap_weight(adapter->fwd_bitmask,
297 adapter->num_rx_pools);
298 limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC :
299 (num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC;
301 if (num_vfs > (limit - num_rx_pools)) {
302 e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
303 num_tc, num_rx_pools - 1, limit - num_rx_pools);
307 err = __ixgbe_enable_sriov(adapter, num_vfs);
311 for (i = 0; i < num_vfs; i++)
312 ixgbe_vf_configuration(dev, (i | 0x10000000));
314 /* reset before enabling SRIOV to avoid mailbox issues */
315 ixgbe_sriov_reinit(adapter);
317 err = pci_enable_sriov(dev, num_vfs);
319 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
322 ixgbe_get_vfs(adapter);
330 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
332 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
334 #ifdef CONFIG_PCI_IOV
335 u32 current_flags = adapter->flags;
336 int prev_num_vf = pci_num_vf(dev);
339 err = ixgbe_disable_sriov(adapter);
341 /* Only reinit if no error and state changed */
342 #ifdef CONFIG_PCI_IOV
343 if (!err && (current_flags != adapter->flags ||
344 prev_num_vf != pci_num_vf(dev)))
345 ixgbe_sriov_reinit(adapter);
351 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
354 return ixgbe_pci_sriov_disable(dev);
356 return ixgbe_pci_sriov_enable(dev, num_vfs);
359 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
362 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
363 >> IXGBE_VT_MSGINFO_SHIFT;
364 u16 *hash_list = (u16 *)&msgbuf[1];
365 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
366 struct ixgbe_hw *hw = &adapter->hw;
371 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
373 /* only so many hash values supported */
374 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
377 * salt away the number of multi cast addresses assigned
378 * to this VF for later use to restore when the PF multi cast
381 vfinfo->num_vf_mc_hashes = entries;
384 * VFs are limited to using the MTA hash table for their multicast
387 for (i = 0; i < entries; i++) {
388 vfinfo->vf_mc_hashes[i] = hash_list[i];
391 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
392 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
393 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
394 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
395 mta_reg |= BIT(vector_bit);
396 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
398 vmolr |= IXGBE_VMOLR_ROMPE;
399 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
404 #ifdef CONFIG_PCI_IOV
405 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
407 struct ixgbe_hw *hw = &adapter->hw;
408 struct vf_data_storage *vfinfo;
414 for (i = 0; i < adapter->num_vfs; i++) {
415 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
416 vfinfo = &adapter->vfinfo[i];
417 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
418 hw->addr_ctrl.mta_in_use++;
419 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
420 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
421 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
422 mta_reg |= BIT(vector_bit);
423 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
426 if (vfinfo->num_vf_mc_hashes)
427 vmolr |= IXGBE_VMOLR_ROMPE;
429 vmolr &= ~IXGBE_VMOLR_ROMPE;
430 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
433 /* Restore any VF macvlans */
434 ixgbe_full_sync_mac_table(adapter);
438 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
441 struct ixgbe_hw *hw = &adapter->hw;
444 /* If VLAN overlaps with one the PF is currently monitoring make
445 * sure that we are able to allocate a VLVF entry. This may be
446 * redundant but it guarantees PF will maintain visibility to
449 if (add && test_bit(vid, adapter->active_vlans)) {
450 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
455 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
460 /* If we failed to add the VF VLAN or we are removing the VF VLAN
461 * we may need to drop the PF pool bit in order to allow us to free
462 * up the VLVF resources.
464 if (test_bit(vid, adapter->active_vlans) ||
465 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
466 ixgbe_update_pf_promisc_vlvf(adapter, vid);
471 static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
473 struct ixgbe_hw *hw = &adapter->hw;
476 if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
477 e_err(drv, "VF max_frame %d out of range\n", max_frame);
482 * For 82599EB we have to keep all PFs and VFs operating with
483 * the same max_frame value in order to avoid sending an oversize
484 * frame to a VF. In order to guarantee this is handled correctly
485 * for all cases we have several special exceptions to take into
486 * account before we can enable the VF for receive
488 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
489 struct net_device *dev = adapter->netdev;
490 int pf_max_frame = dev->mtu + ETH_HLEN;
491 u32 reg_offset, vf_shift, vfre;
495 if (dev->features & NETIF_F_FCOE_MTU)
496 pf_max_frame = max_t(int, pf_max_frame,
497 IXGBE_FCOE_JUMBO_FRAME_SIZE);
499 #endif /* CONFIG_FCOE */
500 switch (adapter->vfinfo[vf].vf_api) {
501 case ixgbe_mbox_api_11:
502 case ixgbe_mbox_api_12:
503 case ixgbe_mbox_api_13:
504 case ixgbe_mbox_api_14:
505 /* Version 1.1 supports jumbo frames on VFs if PF has
506 * jumbo frames enabled which means legacy VFs are
509 if (pf_max_frame > ETH_FRAME_LEN)
513 /* If the PF or VF are running w/ jumbo frames enabled
514 * we need to shut down the VF Rx path as we cannot
515 * support jumbo frames on legacy VFs
517 if ((pf_max_frame > ETH_FRAME_LEN) ||
518 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
523 /* determine VF receive enable location */
525 reg_offset = vf / 32;
527 /* enable or disable receive depending on error */
528 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
530 vfre &= ~BIT(vf_shift);
532 vfre |= BIT(vf_shift);
533 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
536 e_err(drv, "VF max_frame %d out of range\n", max_frame);
541 /* pull current max frame size from hardware */
542 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
543 max_frs &= IXGBE_MHADD_MFS_MASK;
544 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
546 if (max_frs < max_frame) {
547 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
548 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
551 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
556 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
558 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
559 vmolr |= IXGBE_VMOLR_BAM;
561 vmolr |= IXGBE_VMOLR_AUPE;
563 vmolr &= ~IXGBE_VMOLR_AUPE;
564 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
567 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
569 struct ixgbe_hw *hw = &adapter->hw;
571 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
574 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
576 struct ixgbe_hw *hw = &adapter->hw;
577 u32 vlvfb_mask, pool_mask, i;
579 /* create mask for VF and other pools */
580 pool_mask = ~BIT(VMDQ_P(0) % 32);
581 vlvfb_mask = BIT(vf % 32);
583 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
584 for (i = IXGBE_VLVF_ENTRIES; i--;) {
585 u32 bits[2], vlvfb, vid, vfta, vlvf;
586 u32 word = i * 2 + vf / 32;
589 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
591 /* if our bit isn't set we can skip it */
592 if (!(vlvfb & vlvfb_mask))
595 /* clear our bit from vlvfb */
598 /* create 64b mask to chedk to see if we should clear VLVF */
599 bits[word % 2] = vlvfb;
600 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
602 /* if other pools are present, just remove ourselves */
603 if (bits[(VMDQ_P(0) / 32) ^ 1] ||
604 (bits[VMDQ_P(0) / 32] & pool_mask))
607 /* if PF is present, leave VFTA */
608 if (bits[0] || bits[1])
611 /* if we cannot determine VLAN just remove ourselves */
612 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
616 vid = vlvf & VLAN_VID_MASK;
617 mask = BIT(vid % 32);
619 /* clear bit from VFTA */
620 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
622 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
624 /* clear POOL selection enable */
625 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
627 if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
630 /* clear pool bits */
631 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
635 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
636 int vf, int index, unsigned char *mac_addr)
638 struct vf_macvlans *entry;
639 struct list_head *pos;
643 list_for_each(pos, &adapter->vf_mvs.l) {
644 entry = list_entry(pos, struct vf_macvlans, l);
645 if (entry->vf == vf) {
648 entry->is_macvlan = false;
649 ixgbe_del_mac_filter(adapter,
650 entry->vf_macvlan, vf);
656 * If index was zero then we were asked to clear the uc list
657 * for the VF. We're done.
664 list_for_each(pos, &adapter->vf_mvs.l) {
665 entry = list_entry(pos, struct vf_macvlans, l);
671 * If we traversed the entire list and didn't find a free entry
672 * then we're out of space on the RAR table. Also entry may
673 * be NULL because the original memory allocation for the list
674 * failed, which is not fatal but does mean we can't support
675 * VF requests for MACVLAN because we couldn't allocate
676 * memory for the list management required.
678 if (!entry || !entry->free)
681 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
686 entry->is_macvlan = true;
688 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
693 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
695 struct ixgbe_hw *hw = &adapter->hw;
696 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
697 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
698 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
699 u8 num_tcs = adapter->hw_tcs;
703 /* remove VLAN filters beloning to this VF */
704 ixgbe_clear_vf_vlans(adapter, vf);
706 /* add back PF assigned VLAN or VLAN 0 */
707 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
709 /* reset offloads to defaults */
710 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
712 /* set outgoing tags for VFs */
713 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
714 ixgbe_clear_vmvir(adapter, vf);
716 if (vfinfo->pf_qos || !num_tcs)
717 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
720 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
721 adapter->default_up, vf);
723 if (vfinfo->spoofchk_enabled) {
724 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
725 hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
729 /* reset multicast table array for vf */
730 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
732 /* clear any ipsec table info */
733 ixgbe_ipsec_vf_clear(adapter, vf);
735 /* Flush and reset the mta with the new values */
736 ixgbe_set_rx_mode(adapter->netdev);
738 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
739 ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
741 /* reset VF api back to unknown */
742 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
744 /* Restart each queue for given VF */
745 for (queue = 0; queue < q_per_pool; queue++) {
746 unsigned int reg_idx = (vf * q_per_pool) + queue;
748 reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx));
750 /* Re-enabling only configured queues */
752 reg_val |= IXGBE_TXDCTL_ENABLE;
753 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
754 reg_val &= ~IXGBE_TXDCTL_ENABLE;
755 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
759 IXGBE_WRITE_FLUSH(hw);
762 static void ixgbe_vf_clear_mbx(struct ixgbe_adapter *adapter, u32 vf)
764 struct ixgbe_hw *hw = &adapter->hw;
767 /* Clear VF's mailbox memory */
768 for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++)
769 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0);
771 IXGBE_WRITE_FLUSH(hw);
774 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
775 int vf, unsigned char *mac_addr)
779 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
780 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
782 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
785 eth_zero_addr(adapter->vfinfo[vf].vf_mac_addresses);
790 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
792 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
793 unsigned int vfn = (event_mask & 0x3f);
795 bool enable = ((event_mask & 0x10000000U) != 0);
798 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
803 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
806 struct ixgbe_hw *hw = &adapter->hw;
807 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
808 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
811 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
814 /* flush previous write */
815 IXGBE_WRITE_FLUSH(hw);
817 /* indicate to hardware that we want to set drop enable */
818 reg = IXGBE_QDE_WRITE | qde;
819 reg |= i << IXGBE_QDE_IDX_SHIFT;
820 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
825 * ixgbe_set_vf_rx_tx - Set VF rx tx
826 * @adapter: Pointer to adapter struct
829 * Set or reset correct transmit and receive for vf
831 static void ixgbe_set_vf_rx_tx(struct ixgbe_adapter *adapter, int vf)
833 u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx;
834 struct ixgbe_hw *hw = &adapter->hw;
835 u32 reg_offset, vf_shift;
838 reg_offset = vf / 32;
840 reg_cur_tx = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
841 reg_cur_rx = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
843 if (adapter->vfinfo[vf].link_enable) {
844 reg_req_tx = reg_cur_tx | 1 << vf_shift;
845 reg_req_rx = reg_cur_rx | 1 << vf_shift;
847 reg_req_tx = reg_cur_tx & ~(1 << vf_shift);
848 reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
851 /* The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
852 * For more info take a look at ixgbe_set_vf_lpe
854 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
855 struct net_device *dev = adapter->netdev;
856 int pf_max_frame = dev->mtu + ETH_HLEN;
858 #if IS_ENABLED(CONFIG_FCOE)
859 if (dev->features & NETIF_F_FCOE_MTU)
860 pf_max_frame = max_t(int, pf_max_frame,
861 IXGBE_FCOE_JUMBO_FRAME_SIZE);
862 #endif /* CONFIG_FCOE */
864 if (pf_max_frame > ETH_FRAME_LEN)
865 reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
868 /* Enable/Disable particular VF */
869 if (reg_cur_tx != reg_req_tx)
870 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg_req_tx);
871 if (reg_cur_rx != reg_req_rx)
872 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg_req_rx);
875 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
877 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
878 struct ixgbe_hw *hw = &adapter->hw;
879 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
880 u32 reg, reg_offset, vf_shift;
881 u32 msgbuf[4] = {0, 0, 0, 0};
882 u8 *addr = (u8 *)(&msgbuf[1]);
883 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
886 e_info(probe, "VF Reset msg received from vf %d\n", vf);
888 /* reset the filters for the device */
889 ixgbe_vf_reset_event(adapter, vf);
891 ixgbe_vf_clear_mbx(adapter, vf);
893 /* set vf mac address */
894 if (!is_zero_ether_addr(vf_mac))
895 ixgbe_set_vf_mac(adapter, vf, vf_mac);
898 reg_offset = vf / 32;
900 /* force drop enable for all VF Rx queues */
901 reg = IXGBE_QDE_ENABLE;
902 if (adapter->vfinfo[vf].pf_vlan)
903 reg |= IXGBE_QDE_HIDE_VLAN;
905 ixgbe_write_qde(adapter, vf, reg);
907 ixgbe_set_vf_rx_tx(adapter, vf);
909 /* enable VF mailbox for further messages */
910 adapter->vfinfo[vf].clear_to_send = true;
912 /* Enable counting of spoofed packets in the SSVPC register */
913 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
914 reg |= BIT(vf_shift);
915 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
918 * Reset the VFs TDWBAL and TDWBAH registers
919 * which are not cleared by an FLR
921 for (i = 0; i < q_per_pool; i++) {
922 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
923 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
926 /* reply to reset with ack and vf mac address */
927 msgbuf[0] = IXGBE_VF_RESET;
928 if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) {
929 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
930 memcpy(addr, vf_mac, ETH_ALEN);
932 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
936 * Piggyback the multicast filter type so VF can compute the
939 msgbuf[3] = hw->mac.mc_filter_type;
940 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
945 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
948 u8 *new_mac = ((u8 *)(&msgbuf[1]));
950 if (!is_valid_ether_addr(new_mac)) {
951 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
955 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
956 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
958 "VF %d attempted to override administratively set MAC address\n"
959 "Reload the VF driver to resume operations\n",
964 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
967 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
970 u32 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
971 u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
972 u8 tcs = adapter->hw_tcs;
974 if (adapter->vfinfo[vf].pf_vlan || tcs) {
976 "VF %d attempted to override administratively set VLAN configuration\n"
977 "Reload the VF driver to resume operations\n",
982 /* VLAN 0 is a special case, don't allow it to be removed */
986 return ixgbe_set_vf_vlan(adapter, add, vid, vf);
989 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
992 u8 *new_mac = ((u8 *)(&msgbuf[1]));
993 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
994 IXGBE_VT_MSGINFO_SHIFT;
997 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
1000 "VF %d requested MACVLAN filter but is administratively denied\n",
1005 /* An non-zero index indicates the VF is setting a filter */
1007 if (!is_valid_ether_addr(new_mac)) {
1008 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
1013 * If the VF is allowed to set MAC filters then turn off
1014 * anti-spoofing to avoid false positives.
1016 if (adapter->vfinfo[vf].spoofchk_enabled) {
1017 struct ixgbe_hw *hw = &adapter->hw;
1019 hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
1020 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1024 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
1027 "VF %d has requested a MACVLAN filter but there is no space for it\n",
1033 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
1034 u32 *msgbuf, u32 vf)
1036 int api = msgbuf[1];
1039 case ixgbe_mbox_api_10:
1040 case ixgbe_mbox_api_11:
1041 case ixgbe_mbox_api_12:
1042 case ixgbe_mbox_api_13:
1043 case ixgbe_mbox_api_14:
1044 adapter->vfinfo[vf].vf_api = api;
1050 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
1055 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1056 u32 *msgbuf, u32 vf)
1058 struct net_device *dev = adapter->netdev;
1059 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1060 unsigned int default_tc = 0;
1061 u8 num_tcs = adapter->hw_tcs;
1063 /* verify the PF is supporting the correct APIs */
1064 switch (adapter->vfinfo[vf].vf_api) {
1065 case ixgbe_mbox_api_20:
1066 case ixgbe_mbox_api_11:
1067 case ixgbe_mbox_api_12:
1068 case ixgbe_mbox_api_13:
1069 case ixgbe_mbox_api_14:
1075 /* only allow 1 Tx queue for bandwidth limiting */
1076 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1077 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1079 /* if TCs > 1 determine which TC belongs to default user priority */
1081 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1083 /* notify VF of need for VLAN tag stripping, and correct queue */
1085 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1086 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1087 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1089 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1091 /* notify VF of default queue */
1092 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1097 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1100 u32 *out_buf = &msgbuf[1];
1101 const u8 *reta = adapter->rss_indir_tbl;
1102 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1104 /* Check if operation is permitted */
1105 if (!adapter->vfinfo[vf].rss_query_enabled)
1108 /* verify the PF is supporting the correct API */
1109 switch (adapter->vfinfo[vf].vf_api) {
1110 case ixgbe_mbox_api_14:
1111 case ixgbe_mbox_api_13:
1112 case ixgbe_mbox_api_12:
1118 /* This mailbox command is supported (required) only for 82599 and x540
1119 * VFs which support up to 4 RSS queues. Therefore we will compress the
1120 * RETA by saving only 2 bits from each entry. This way we will be able
1121 * to transfer the whole RETA in a single mailbox operation.
1123 for (i = 0; i < reta_size / 16; i++) {
1125 for (j = 0; j < 16; j++)
1126 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1132 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1133 u32 *msgbuf, u32 vf)
1135 u32 *rss_key = &msgbuf[1];
1137 /* Check if the operation is permitted */
1138 if (!adapter->vfinfo[vf].rss_query_enabled)
1141 /* verify the PF is supporting the correct API */
1142 switch (adapter->vfinfo[vf].vf_api) {
1143 case ixgbe_mbox_api_14:
1144 case ixgbe_mbox_api_13:
1145 case ixgbe_mbox_api_12:
1151 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1156 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1157 u32 *msgbuf, u32 vf)
1159 struct ixgbe_hw *hw = &adapter->hw;
1160 int xcast_mode = msgbuf[1];
1161 u32 vmolr, fctrl, disable, enable;
1163 /* verify the PF is supporting the correct APIs */
1164 switch (adapter->vfinfo[vf].vf_api) {
1165 case ixgbe_mbox_api_12:
1166 /* promisc introduced in 1.3 version */
1167 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1170 case ixgbe_mbox_api_13:
1171 case ixgbe_mbox_api_14:
1177 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1178 !adapter->vfinfo[vf].trusted) {
1179 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1182 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1185 switch (xcast_mode) {
1186 case IXGBEVF_XCAST_MODE_NONE:
1187 disable = IXGBE_VMOLR_ROMPE |
1188 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1189 enable = IXGBE_VMOLR_BAM;
1191 case IXGBEVF_XCAST_MODE_MULTI:
1192 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1193 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1195 case IXGBEVF_XCAST_MODE_ALLMULTI:
1196 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1197 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1199 case IXGBEVF_XCAST_MODE_PROMISC:
1200 if (hw->mac.type <= ixgbe_mac_82599EB)
1203 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1204 if (!(fctrl & IXGBE_FCTRL_UPE)) {
1205 /* VF promisc requires PF in promisc */
1207 "Enabling VF promisc requires PF in promisc\n");
1211 disable = IXGBE_VMOLR_VPE;
1212 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1213 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1219 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1222 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1224 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1227 msgbuf[1] = xcast_mode;
1232 static int ixgbe_get_vf_link_state(struct ixgbe_adapter *adapter,
1233 u32 *msgbuf, u32 vf)
1235 u32 *link_state = &msgbuf[1];
1237 /* verify the PF is supporting the correct API */
1238 switch (adapter->vfinfo[vf].vf_api) {
1239 case ixgbe_mbox_api_12:
1240 case ixgbe_mbox_api_13:
1241 case ixgbe_mbox_api_14:
1247 *link_state = adapter->vfinfo[vf].link_enable;
1252 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1254 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1255 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1256 struct ixgbe_hw *hw = &adapter->hw;
1259 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1262 pr_err("Error receiving message from VF\n");
1266 /* this is a message we already processed, do nothing */
1267 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1270 /* flush the ack before we write any messages back */
1271 IXGBE_WRITE_FLUSH(hw);
1273 if (msgbuf[0] == IXGBE_VF_RESET)
1274 return ixgbe_vf_reset_msg(adapter, vf);
1277 * until the vf completes a virtual function reset it should not be
1278 * allowed to start any configuration.
1280 if (!adapter->vfinfo[vf].clear_to_send) {
1281 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1282 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1286 switch ((msgbuf[0] & 0xFFFF)) {
1287 case IXGBE_VF_SET_MAC_ADDR:
1288 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1290 case IXGBE_VF_SET_MULTICAST:
1291 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1293 case IXGBE_VF_SET_VLAN:
1294 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1296 case IXGBE_VF_SET_LPE:
1297 retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1299 case IXGBE_VF_SET_MACVLAN:
1300 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1302 case IXGBE_VF_API_NEGOTIATE:
1303 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1305 case IXGBE_VF_GET_QUEUES:
1306 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1308 case IXGBE_VF_GET_RETA:
1309 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1311 case IXGBE_VF_GET_RSS_KEY:
1312 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1314 case IXGBE_VF_UPDATE_XCAST_MODE:
1315 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1317 case IXGBE_VF_GET_LINK_STATE:
1318 retval = ixgbe_get_vf_link_state(adapter, msgbuf, vf);
1320 case IXGBE_VF_IPSEC_ADD:
1321 retval = ixgbe_ipsec_vf_add_sa(adapter, msgbuf, vf);
1323 case IXGBE_VF_IPSEC_DEL:
1324 retval = ixgbe_ipsec_vf_del_sa(adapter, msgbuf, vf);
1327 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1328 retval = IXGBE_ERR_MBX;
1332 /* notify the VF of the results of what it sent us */
1334 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1336 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1338 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1340 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1345 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1347 struct ixgbe_hw *hw = &adapter->hw;
1348 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1350 /* if device isn't clear to send it shouldn't be reading either */
1351 if (!adapter->vfinfo[vf].clear_to_send)
1352 ixgbe_write_mbx(hw, &msg, 1, vf);
1355 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1357 struct ixgbe_hw *hw = &adapter->hw;
1360 for (vf = 0; vf < adapter->num_vfs; vf++) {
1361 /* process any reset requests */
1362 if (!ixgbe_check_for_rst(hw, vf))
1363 ixgbe_vf_reset_event(adapter, vf);
1365 /* process any messages pending */
1366 if (!ixgbe_check_for_msg(hw, vf))
1367 ixgbe_rcv_msg_from_vf(adapter, vf);
1369 /* process any acks */
1370 if (!ixgbe_check_for_ack(hw, vf))
1371 ixgbe_rcv_ack_from_vf(adapter, vf);
1375 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1377 struct ixgbe_hw *hw = &adapter->hw;
1380 ping = IXGBE_PF_CONTROL_MSG;
1381 if (adapter->vfinfo[vf].clear_to_send)
1382 ping |= IXGBE_VT_MSGTYPE_CTS;
1383 ixgbe_write_mbx(hw, &ping, 1, vf);
1386 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1388 struct ixgbe_hw *hw = &adapter->hw;
1392 for (i = 0 ; i < adapter->num_vfs; i++) {
1393 ping = IXGBE_PF_CONTROL_MSG;
1394 if (adapter->vfinfo[i].clear_to_send)
1395 ping |= IXGBE_VT_MSGTYPE_CTS;
1396 ixgbe_write_mbx(hw, &ping, 1, i);
1401 * ixgbe_set_all_vfs - update vfs queues
1402 * @adapter: Pointer to adapter struct
1404 * Update setting transmit and receive queues for all vfs
1406 void ixgbe_set_all_vfs(struct ixgbe_adapter *adapter)
1410 for (i = 0 ; i < adapter->num_vfs; i++)
1411 ixgbe_set_vf_link_state(adapter, i,
1412 adapter->vfinfo[i].link_state);
1415 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1417 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1420 if (vf >= adapter->num_vfs)
1423 if (is_valid_ether_addr(mac)) {
1424 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1426 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1428 retval = ixgbe_set_vf_mac(adapter, vf, mac);
1430 adapter->vfinfo[vf].pf_set_mac = true;
1432 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1433 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1434 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1437 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1439 } else if (is_zero_ether_addr(mac)) {
1440 unsigned char *vf_mac_addr =
1441 adapter->vfinfo[vf].vf_mac_addresses;
1444 if (is_zero_ether_addr(vf_mac_addr))
1447 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1449 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1451 adapter->vfinfo[vf].pf_set_mac = false;
1452 memcpy(vf_mac_addr, mac, ETH_ALEN);
1454 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1463 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1466 struct ixgbe_hw *hw = &adapter->hw;
1469 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1473 /* Revoke tagless access via VLAN 0 */
1474 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1476 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1477 ixgbe_set_vmolr(hw, vf, false);
1479 /* enable hide vlan on X550 */
1480 if (hw->mac.type >= ixgbe_mac_X550)
1481 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1482 IXGBE_QDE_HIDE_VLAN);
1484 adapter->vfinfo[vf].pf_vlan = vlan;
1485 adapter->vfinfo[vf].pf_qos = qos;
1486 dev_info(&adapter->pdev->dev,
1487 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1488 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1489 dev_warn(&adapter->pdev->dev,
1490 "The VF VLAN has been set, but the PF device is not up.\n");
1491 dev_warn(&adapter->pdev->dev,
1492 "Bring the PF device up before attempting to use the VF device.\n");
1499 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1501 struct ixgbe_hw *hw = &adapter->hw;
1504 err = ixgbe_set_vf_vlan(adapter, false,
1505 adapter->vfinfo[vf].pf_vlan, vf);
1506 /* Restore tagless access via VLAN 0 */
1507 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1508 ixgbe_clear_vmvir(adapter, vf);
1509 ixgbe_set_vmolr(hw, vf, true);
1511 /* disable hide VLAN on X550 */
1512 if (hw->mac.type >= ixgbe_mac_X550)
1513 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1515 adapter->vfinfo[vf].pf_vlan = 0;
1516 adapter->vfinfo[vf].pf_qos = 0;
1521 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1522 u8 qos, __be16 vlan_proto)
1525 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1527 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1529 if (vlan_proto != htons(ETH_P_8021Q))
1530 return -EPROTONOSUPPORT;
1532 /* Check if there is already a port VLAN set, if so
1533 * we have to delete the old one first before we
1534 * can set the new one. The usage model had
1535 * previously assumed the user would delete the
1536 * old port VLAN before setting a new one but this
1537 * is not necessarily the case.
1539 if (adapter->vfinfo[vf].pf_vlan)
1540 err = ixgbe_disable_port_vlan(adapter, vf);
1543 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1545 err = ixgbe_disable_port_vlan(adapter, vf);
1552 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1554 switch (adapter->link_speed) {
1555 case IXGBE_LINK_SPEED_100_FULL:
1557 case IXGBE_LINK_SPEED_1GB_FULL:
1559 case IXGBE_LINK_SPEED_10GB_FULL:
1566 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1568 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1569 struct ixgbe_hw *hw = &adapter->hw;
1571 u16 queue, queues_per_pool;
1572 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1575 /* start with base link speed value */
1576 bcnrc_val = adapter->vf_rate_link_speed;
1578 /* Calculate the rate factor values to set */
1579 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1580 bcnrc_val /= tx_rate;
1582 /* clear everything but the rate factor */
1583 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1584 IXGBE_RTTBCNRC_RF_DEC_MASK;
1586 /* enable the rate scheduler */
1587 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1591 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1592 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1593 * and 0x004 otherwise.
1595 switch (hw->mac.type) {
1596 case ixgbe_mac_82599EB:
1597 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1599 case ixgbe_mac_X540:
1600 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1606 /* determine how many queues per pool based on VMDq mask */
1607 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1609 /* write value for all Tx queues belonging to VF */
1610 for (queue = 0; queue < queues_per_pool; queue++) {
1611 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1613 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1614 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1618 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1622 /* VF Tx rate limit was not set */
1623 if (!adapter->vf_rate_link_speed)
1626 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1627 adapter->vf_rate_link_speed = 0;
1628 dev_info(&adapter->pdev->dev,
1629 "Link speed has been changed. VF Transmit rate is disabled\n");
1632 for (i = 0; i < adapter->num_vfs; i++) {
1633 if (!adapter->vf_rate_link_speed)
1634 adapter->vfinfo[i].tx_rate = 0;
1636 ixgbe_set_vf_rate_limit(adapter, i);
1640 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1643 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1646 /* verify VF is active */
1647 if (vf >= adapter->num_vfs)
1650 /* verify link is up */
1651 if (!adapter->link_up)
1654 /* verify we are linked at 10Gbps */
1655 link_speed = ixgbe_link_mbps(adapter);
1656 if (link_speed != 10000)
1662 /* rate limit cannot be less than 10Mbs or greater than link speed */
1663 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1667 adapter->vf_rate_link_speed = link_speed;
1668 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1670 /* update hardware configuration */
1671 ixgbe_set_vf_rate_limit(adapter, vf);
1676 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1678 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1679 struct ixgbe_hw *hw = &adapter->hw;
1681 if (vf >= adapter->num_vfs)
1684 adapter->vfinfo[vf].spoofchk_enabled = setting;
1686 /* configure MAC spoofing */
1687 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1689 /* configure VLAN spoofing */
1690 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1692 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1693 * calling set_ethertype_anti_spoofing for each VF in loop below
1695 if (hw->mac.ops.set_ethertype_anti_spoofing) {
1696 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1697 (IXGBE_ETQF_FILTER_EN |
1698 IXGBE_ETQF_TX_ANTISPOOF |
1701 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1702 (IXGBE_ETQF_FILTER_EN |
1703 IXGBE_ETQF_TX_ANTISPOOF |
1706 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1713 * ixgbe_set_vf_link_state - Set link state
1714 * @adapter: Pointer to adapter struct
1715 * @vf: VF identifier
1716 * @state: required link state
1718 * Set a link force state on/off a single vf
1720 void ixgbe_set_vf_link_state(struct ixgbe_adapter *adapter, int vf, int state)
1722 adapter->vfinfo[vf].link_state = state;
1725 case IFLA_VF_LINK_STATE_AUTO:
1726 if (test_bit(__IXGBE_DOWN, &adapter->state))
1727 adapter->vfinfo[vf].link_enable = false;
1729 adapter->vfinfo[vf].link_enable = true;
1731 case IFLA_VF_LINK_STATE_ENABLE:
1732 adapter->vfinfo[vf].link_enable = true;
1734 case IFLA_VF_LINK_STATE_DISABLE:
1735 adapter->vfinfo[vf].link_enable = false;
1739 ixgbe_set_vf_rx_tx(adapter, vf);
1741 /* restart the VF */
1742 adapter->vfinfo[vf].clear_to_send = false;
1743 ixgbe_ping_vf(adapter, vf);
1747 * ixgbe_ndo_set_vf_link_state - Set link state
1748 * @netdev: network interface device structure
1749 * @vf: VF identifier
1750 * @state: required link state
1752 * Set the link state of a specified VF, regardless of physical link state
1754 int ixgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state)
1756 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1759 if (vf < 0 || vf >= adapter->num_vfs) {
1760 dev_err(&adapter->pdev->dev,
1761 "NDO set VF link - invalid VF identifier %d\n", vf);
1766 case IFLA_VF_LINK_STATE_ENABLE:
1767 dev_info(&adapter->pdev->dev,
1768 "NDO set VF %d link state %d - not supported\n",
1771 case IFLA_VF_LINK_STATE_DISABLE:
1772 dev_info(&adapter->pdev->dev,
1773 "NDO set VF %d link state disable\n", vf);
1774 ixgbe_set_vf_link_state(adapter, vf, state);
1776 case IFLA_VF_LINK_STATE_AUTO:
1777 dev_info(&adapter->pdev->dev,
1778 "NDO set VF %d link state auto\n", vf);
1779 ixgbe_set_vf_link_state(adapter, vf, state);
1782 dev_err(&adapter->pdev->dev,
1783 "NDO set VF %d - invalid link state %d\n", vf, state);
1790 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1793 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1795 /* This operation is currently supported only for 82599 and x540
1798 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1799 adapter->hw.mac.type >= ixgbe_mac_X550)
1802 if (vf >= adapter->num_vfs)
1805 adapter->vfinfo[vf].rss_query_enabled = setting;
1810 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1812 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1814 if (vf >= adapter->num_vfs)
1818 if (adapter->vfinfo[vf].trusted == setting)
1821 adapter->vfinfo[vf].trusted = setting;
1823 /* reset VF to reconfigure features */
1824 adapter->vfinfo[vf].clear_to_send = false;
1825 ixgbe_ping_vf(adapter, vf);
1827 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1832 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1833 int vf, struct ifla_vf_info *ivi)
1835 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1836 if (vf >= adapter->num_vfs)
1839 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1840 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1841 ivi->min_tx_rate = 0;
1842 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1843 ivi->qos = adapter->vfinfo[vf].pf_qos;
1844 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1845 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1846 ivi->trusted = adapter->vfinfo[vf].trusted;