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 /* Initialize list of VF macvlans */
32 INIT_LIST_HEAD(&adapter->vf_mvs.l);
34 num_vf_macvlans = hw->mac.num_rar_entries -
35 (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
39 mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
42 for (i = 0; i < num_vf_macvlans; i++) {
44 mv_list[i].free = true;
45 list_add(&mv_list[i].l, &adapter->vf_mvs.l);
47 adapter->mv_list = mv_list;
51 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
54 struct ixgbe_hw *hw = &adapter->hw;
57 if (adapter->xdp_prog) {
58 e_warn(probe, "SRIOV is not supported with XDP\n");
62 /* Enable VMDq flag so device will be set in VM mode */
63 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
64 IXGBE_FLAG_VMDQ_ENABLED;
66 /* Allocate memory for per VF control structures */
67 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
72 adapter->num_vfs = num_vfs;
74 ixgbe_alloc_vf_macvlans(adapter, num_vfs);
75 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
77 /* Initialize default switching mode VEB */
78 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
79 adapter->bridge_mode = BRIDGE_MODE_VEB;
81 /* limit trafffic classes based on VFs enabled */
82 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
83 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
84 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
85 } else if (num_vfs < 32) {
86 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
87 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
89 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
90 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
93 /* Disable RSC when in SR-IOV mode */
94 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
95 IXGBE_FLAG2_RSC_ENABLED);
97 for (i = 0; i < num_vfs; i++) {
98 /* enable spoof checking for all VFs */
99 adapter->vfinfo[i].spoofchk_enabled = 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;
211 spin_lock_irqsave(&adapter->vfs_lock, flags);
212 /* set num VFs to 0 to prevent access to vfinfo */
213 adapter->num_vfs = 0;
214 spin_unlock_irqrestore(&adapter->vfs_lock, flags);
216 /* put the reference to all of the vf devices */
217 for (vf = 0; vf < num_vfs; ++vf) {
218 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
222 adapter->vfinfo[vf].vfdev = NULL;
226 /* free VF control structures */
227 kfree(adapter->vfinfo);
228 adapter->vfinfo = NULL;
230 /* free macvlan list */
231 kfree(adapter->mv_list);
232 adapter->mv_list = NULL;
234 /* if SR-IOV is already disabled then there is nothing to do */
235 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
238 #ifdef CONFIG_PCI_IOV
240 * If our VFs are assigned we cannot shut down SR-IOV
241 * without causing issues, so just leave the hardware
242 * available but disabled
244 if (pci_vfs_assigned(adapter->pdev)) {
245 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
248 /* disable iov and allow time for transactions to clear */
249 pci_disable_sriov(adapter->pdev);
252 /* Disable VMDq flag so device will be set in VM mode */
253 if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
254 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
255 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
256 rss = min_t(int, ixgbe_max_rss_indices(adapter),
259 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
262 adapter->ring_feature[RING_F_VMDQ].offset = 0;
263 adapter->ring_feature[RING_F_RSS].limit = rss;
265 /* take a breather then clean up driver data */
270 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
272 #ifdef CONFIG_PCI_IOV
273 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
274 int pre_existing_vfs = pci_num_vf(dev);
275 int err = 0, num_rx_pools, i, limit;
278 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
279 err = ixgbe_disable_sriov(adapter);
280 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
286 /* While the SR-IOV capability structure reports total VFs to be 64,
287 * we limit the actual number allocated as below based on two factors.
292 * First, we reserve some transmit/receive resources for the PF.
293 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
294 * account for this, so that we don't accidentally allocate more VFs
295 * than we have available pools. The PCI bus driver already checks for
296 * other values out of range.
298 num_tc = adapter->hw_tcs;
299 num_rx_pools = bitmap_weight(adapter->fwd_bitmask,
300 adapter->num_rx_pools);
301 limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC :
302 (num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC;
304 if (num_vfs > (limit - num_rx_pools)) {
305 e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
306 num_tc, num_rx_pools - 1, limit - num_rx_pools);
310 err = __ixgbe_enable_sriov(adapter, num_vfs);
314 for (i = 0; i < num_vfs; i++)
315 ixgbe_vf_configuration(dev, (i | 0x10000000));
317 /* reset before enabling SRIOV to avoid mailbox issues */
318 ixgbe_sriov_reinit(adapter);
320 err = pci_enable_sriov(dev, num_vfs);
322 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
325 ixgbe_get_vfs(adapter);
333 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
335 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
337 #ifdef CONFIG_PCI_IOV
338 u32 current_flags = adapter->flags;
339 int prev_num_vf = pci_num_vf(dev);
342 err = ixgbe_disable_sriov(adapter);
344 /* Only reinit if no error and state changed */
345 #ifdef CONFIG_PCI_IOV
346 if (!err && (current_flags != adapter->flags ||
347 prev_num_vf != pci_num_vf(dev)))
348 ixgbe_sriov_reinit(adapter);
354 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
357 return ixgbe_pci_sriov_disable(dev);
359 return ixgbe_pci_sriov_enable(dev, num_vfs);
362 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
365 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
366 >> IXGBE_VT_MSGINFO_SHIFT;
367 u16 *hash_list = (u16 *)&msgbuf[1];
368 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
369 struct ixgbe_hw *hw = &adapter->hw;
374 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
376 /* only so many hash values supported */
377 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
380 * salt away the number of multi cast addresses assigned
381 * to this VF for later use to restore when the PF multi cast
384 vfinfo->num_vf_mc_hashes = entries;
387 * VFs are limited to using the MTA hash table for their multicast
390 for (i = 0; i < entries; i++) {
391 vfinfo->vf_mc_hashes[i] = hash_list[i];
394 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
395 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
396 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
397 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
398 mta_reg |= BIT(vector_bit);
399 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
401 vmolr |= IXGBE_VMOLR_ROMPE;
402 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
407 #ifdef CONFIG_PCI_IOV
408 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
410 struct ixgbe_hw *hw = &adapter->hw;
411 struct vf_data_storage *vfinfo;
417 for (i = 0; i < adapter->num_vfs; i++) {
418 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
419 vfinfo = &adapter->vfinfo[i];
420 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
421 hw->addr_ctrl.mta_in_use++;
422 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
423 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
424 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
425 mta_reg |= BIT(vector_bit);
426 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
429 if (vfinfo->num_vf_mc_hashes)
430 vmolr |= IXGBE_VMOLR_ROMPE;
432 vmolr &= ~IXGBE_VMOLR_ROMPE;
433 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
436 /* Restore any VF macvlans */
437 ixgbe_full_sync_mac_table(adapter);
441 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
444 struct ixgbe_hw *hw = &adapter->hw;
447 /* If VLAN overlaps with one the PF is currently monitoring make
448 * sure that we are able to allocate a VLVF entry. This may be
449 * redundant but it guarantees PF will maintain visibility to
452 if (add && test_bit(vid, adapter->active_vlans)) {
453 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
458 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
463 /* If we failed to add the VF VLAN or we are removing the VF VLAN
464 * we may need to drop the PF pool bit in order to allow us to free
465 * up the VLVF resources.
467 if (test_bit(vid, adapter->active_vlans) ||
468 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
469 ixgbe_update_pf_promisc_vlvf(adapter, vid);
474 static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
476 struct ixgbe_hw *hw = &adapter->hw;
479 if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
480 e_err(drv, "VF max_frame %d out of range\n", max_frame);
485 * For 82599EB we have to keep all PFs and VFs operating with
486 * the same max_frame value in order to avoid sending an oversize
487 * frame to a VF. In order to guarantee this is handled correctly
488 * for all cases we have several special exceptions to take into
489 * account before we can enable the VF for receive
491 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
492 struct net_device *dev = adapter->netdev;
493 int pf_max_frame = dev->mtu + ETH_HLEN;
494 u32 reg_offset, vf_shift, vfre;
498 if (dev->features & NETIF_F_FCOE_MTU)
499 pf_max_frame = max_t(int, pf_max_frame,
500 IXGBE_FCOE_JUMBO_FRAME_SIZE);
502 #endif /* CONFIG_FCOE */
503 switch (adapter->vfinfo[vf].vf_api) {
504 case ixgbe_mbox_api_11:
505 case ixgbe_mbox_api_12:
506 case ixgbe_mbox_api_13:
507 case ixgbe_mbox_api_14:
508 /* Version 1.1 supports jumbo frames on VFs if PF has
509 * jumbo frames enabled which means legacy VFs are
512 if (pf_max_frame > ETH_FRAME_LEN)
516 /* If the PF or VF are running w/ jumbo frames enabled
517 * we need to shut down the VF Rx path as we cannot
518 * support jumbo frames on legacy VFs
520 if ((pf_max_frame > ETH_FRAME_LEN) ||
521 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
526 /* determine VF receive enable location */
528 reg_offset = vf / 32;
530 /* enable or disable receive depending on error */
531 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
533 vfre &= ~BIT(vf_shift);
535 vfre |= BIT(vf_shift);
536 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
539 e_err(drv, "VF max_frame %d out of range\n", max_frame);
544 /* pull current max frame size from hardware */
545 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
546 max_frs &= IXGBE_MHADD_MFS_MASK;
547 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
549 if (max_frs < max_frame) {
550 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
551 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
554 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
559 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
561 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
562 vmolr |= IXGBE_VMOLR_BAM;
564 vmolr |= IXGBE_VMOLR_AUPE;
566 vmolr &= ~IXGBE_VMOLR_AUPE;
567 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
570 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
572 struct ixgbe_hw *hw = &adapter->hw;
574 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
577 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
579 struct ixgbe_hw *hw = &adapter->hw;
580 u32 vlvfb_mask, pool_mask, i;
582 /* create mask for VF and other pools */
583 pool_mask = ~BIT(VMDQ_P(0) % 32);
584 vlvfb_mask = BIT(vf % 32);
586 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
587 for (i = IXGBE_VLVF_ENTRIES; i--;) {
588 u32 bits[2], vlvfb, vid, vfta, vlvf;
589 u32 word = i * 2 + vf / 32;
592 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
594 /* if our bit isn't set we can skip it */
595 if (!(vlvfb & vlvfb_mask))
598 /* clear our bit from vlvfb */
601 /* create 64b mask to chedk to see if we should clear VLVF */
602 bits[word % 2] = vlvfb;
603 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
605 /* if other pools are present, just remove ourselves */
606 if (bits[(VMDQ_P(0) / 32) ^ 1] ||
607 (bits[VMDQ_P(0) / 32] & pool_mask))
610 /* if PF is present, leave VFTA */
611 if (bits[0] || bits[1])
614 /* if we cannot determine VLAN just remove ourselves */
615 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
619 vid = vlvf & VLAN_VID_MASK;
620 mask = BIT(vid % 32);
622 /* clear bit from VFTA */
623 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
625 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
627 /* clear POOL selection enable */
628 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
630 if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
633 /* clear pool bits */
634 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
638 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
639 int vf, int index, unsigned char *mac_addr)
641 struct vf_macvlans *entry;
642 struct list_head *pos;
646 list_for_each(pos, &adapter->vf_mvs.l) {
647 entry = list_entry(pos, struct vf_macvlans, l);
648 if (entry->vf == vf) {
651 entry->is_macvlan = false;
652 ixgbe_del_mac_filter(adapter,
653 entry->vf_macvlan, vf);
659 * If index was zero then we were asked to clear the uc list
660 * for the VF. We're done.
667 list_for_each(pos, &adapter->vf_mvs.l) {
668 entry = list_entry(pos, struct vf_macvlans, l);
674 * If we traversed the entire list and didn't find a free entry
675 * then we're out of space on the RAR table. Also entry may
676 * be NULL because the original memory allocation for the list
677 * failed, which is not fatal but does mean we can't support
678 * VF requests for MACVLAN because we couldn't allocate
679 * memory for the list management required.
681 if (!entry || !entry->free)
684 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
689 entry->is_macvlan = true;
691 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
696 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
698 struct ixgbe_hw *hw = &adapter->hw;
699 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
700 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
701 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
702 u8 num_tcs = adapter->hw_tcs;
706 /* remove VLAN filters beloning to this VF */
707 ixgbe_clear_vf_vlans(adapter, vf);
709 /* add back PF assigned VLAN or VLAN 0 */
710 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
712 /* reset offloads to defaults */
713 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
715 /* set outgoing tags for VFs */
716 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
717 ixgbe_clear_vmvir(adapter, vf);
719 if (vfinfo->pf_qos || !num_tcs)
720 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
723 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
724 adapter->default_up, vf);
726 if (vfinfo->spoofchk_enabled) {
727 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
728 hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
732 /* reset multicast table array for vf */
733 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
735 /* clear any ipsec table info */
736 ixgbe_ipsec_vf_clear(adapter, vf);
738 /* Flush and reset the mta with the new values */
739 ixgbe_set_rx_mode(adapter->netdev);
741 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
742 ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
744 /* reset VF api back to unknown */
745 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
747 /* Restart each queue for given VF */
748 for (queue = 0; queue < q_per_pool; queue++) {
749 unsigned int reg_idx = (vf * q_per_pool) + queue;
751 reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx));
753 /* Re-enabling only configured queues */
755 reg_val |= IXGBE_TXDCTL_ENABLE;
756 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
757 reg_val &= ~IXGBE_TXDCTL_ENABLE;
758 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
762 IXGBE_WRITE_FLUSH(hw);
765 static void ixgbe_vf_clear_mbx(struct ixgbe_adapter *adapter, u32 vf)
767 struct ixgbe_hw *hw = &adapter->hw;
770 /* Clear VF's mailbox memory */
771 for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++)
772 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0);
774 IXGBE_WRITE_FLUSH(hw);
777 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
778 int vf, unsigned char *mac_addr)
782 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
783 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
785 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
788 eth_zero_addr(adapter->vfinfo[vf].vf_mac_addresses);
793 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
795 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
796 unsigned int vfn = (event_mask & 0x3f);
798 bool enable = ((event_mask & 0x10000000U) != 0);
801 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
806 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
809 struct ixgbe_hw *hw = &adapter->hw;
810 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
811 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
814 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
817 /* flush previous write */
818 IXGBE_WRITE_FLUSH(hw);
820 /* indicate to hardware that we want to set drop enable */
821 reg = IXGBE_QDE_WRITE | qde;
822 reg |= i << IXGBE_QDE_IDX_SHIFT;
823 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
827 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
829 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
830 struct ixgbe_hw *hw = &adapter->hw;
831 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
832 u32 reg, reg_offset, vf_shift;
833 u32 msgbuf[4] = {0, 0, 0, 0};
834 u8 *addr = (u8 *)(&msgbuf[1]);
835 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
838 e_info(probe, "VF Reset msg received from vf %d\n", vf);
840 /* reset the filters for the device */
841 ixgbe_vf_reset_event(adapter, vf);
843 ixgbe_vf_clear_mbx(adapter, vf);
845 /* set vf mac address */
846 if (!is_zero_ether_addr(vf_mac))
847 ixgbe_set_vf_mac(adapter, vf, vf_mac);
850 reg_offset = vf / 32;
852 /* enable transmit for vf */
853 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
854 reg |= BIT(vf_shift);
855 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
857 /* force drop enable for all VF Rx queues */
858 reg = IXGBE_QDE_ENABLE;
859 if (adapter->vfinfo[vf].pf_vlan)
860 reg |= IXGBE_QDE_HIDE_VLAN;
862 ixgbe_write_qde(adapter, vf, reg);
864 /* enable receive for vf */
865 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
866 reg |= BIT(vf_shift);
868 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
869 * For more info take a look at ixgbe_set_vf_lpe
871 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
872 struct net_device *dev = adapter->netdev;
873 int pf_max_frame = dev->mtu + ETH_HLEN;
876 if (dev->features & NETIF_F_FCOE_MTU)
877 pf_max_frame = max_t(int, pf_max_frame,
878 IXGBE_FCOE_JUMBO_FRAME_SIZE);
880 #endif /* CONFIG_FCOE */
881 if (pf_max_frame > ETH_FRAME_LEN)
882 reg &= ~BIT(vf_shift);
884 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
886 /* enable VF mailbox for further messages */
887 adapter->vfinfo[vf].clear_to_send = true;
889 /* Enable counting of spoofed packets in the SSVPC register */
890 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
891 reg |= BIT(vf_shift);
892 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
895 * Reset the VFs TDWBAL and TDWBAH registers
896 * which are not cleared by an FLR
898 for (i = 0; i < q_per_pool; i++) {
899 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
900 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
903 /* reply to reset with ack and vf mac address */
904 msgbuf[0] = IXGBE_VF_RESET;
905 if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) {
906 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
907 memcpy(addr, vf_mac, ETH_ALEN);
909 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
913 * Piggyback the multicast filter type so VF can compute the
916 msgbuf[3] = hw->mac.mc_filter_type;
917 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
922 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
925 u8 *new_mac = ((u8 *)(&msgbuf[1]));
927 if (!is_valid_ether_addr(new_mac)) {
928 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
932 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
933 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
935 "VF %d attempted to override administratively set MAC address\n"
936 "Reload the VF driver to resume operations\n",
941 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
944 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
947 u32 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
948 u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
949 u8 tcs = adapter->hw_tcs;
951 if (adapter->vfinfo[vf].pf_vlan || tcs) {
953 "VF %d attempted to override administratively set VLAN configuration\n"
954 "Reload the VF driver to resume operations\n",
959 /* VLAN 0 is a special case, don't allow it to be removed */
963 return ixgbe_set_vf_vlan(adapter, add, vid, vf);
966 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
969 u8 *new_mac = ((u8 *)(&msgbuf[1]));
970 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
971 IXGBE_VT_MSGINFO_SHIFT;
974 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
977 "VF %d requested MACVLAN filter but is administratively denied\n",
982 /* An non-zero index indicates the VF is setting a filter */
984 if (!is_valid_ether_addr(new_mac)) {
985 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
990 * If the VF is allowed to set MAC filters then turn off
991 * anti-spoofing to avoid false positives.
993 if (adapter->vfinfo[vf].spoofchk_enabled) {
994 struct ixgbe_hw *hw = &adapter->hw;
996 hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
997 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1001 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
1004 "VF %d has requested a MACVLAN filter but there is no space for it\n",
1010 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
1011 u32 *msgbuf, u32 vf)
1013 int api = msgbuf[1];
1016 case ixgbe_mbox_api_10:
1017 case ixgbe_mbox_api_11:
1018 case ixgbe_mbox_api_12:
1019 case ixgbe_mbox_api_13:
1020 case ixgbe_mbox_api_14:
1021 adapter->vfinfo[vf].vf_api = api;
1027 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
1032 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1033 u32 *msgbuf, u32 vf)
1035 struct net_device *dev = adapter->netdev;
1036 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1037 unsigned int default_tc = 0;
1038 u8 num_tcs = adapter->hw_tcs;
1040 /* verify the PF is supporting the correct APIs */
1041 switch (adapter->vfinfo[vf].vf_api) {
1042 case ixgbe_mbox_api_20:
1043 case ixgbe_mbox_api_11:
1044 case ixgbe_mbox_api_12:
1045 case ixgbe_mbox_api_13:
1046 case ixgbe_mbox_api_14:
1052 /* only allow 1 Tx queue for bandwidth limiting */
1053 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1054 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1056 /* if TCs > 1 determine which TC belongs to default user priority */
1058 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1060 /* notify VF of need for VLAN tag stripping, and correct queue */
1062 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1063 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1064 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1066 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1068 /* notify VF of default queue */
1069 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1074 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1077 u32 *out_buf = &msgbuf[1];
1078 const u8 *reta = adapter->rss_indir_tbl;
1079 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1081 /* Check if operation is permitted */
1082 if (!adapter->vfinfo[vf].rss_query_enabled)
1085 /* verify the PF is supporting the correct API */
1086 switch (adapter->vfinfo[vf].vf_api) {
1087 case ixgbe_mbox_api_14:
1088 case ixgbe_mbox_api_13:
1089 case ixgbe_mbox_api_12:
1095 /* This mailbox command is supported (required) only for 82599 and x540
1096 * VFs which support up to 4 RSS queues. Therefore we will compress the
1097 * RETA by saving only 2 bits from each entry. This way we will be able
1098 * to transfer the whole RETA in a single mailbox operation.
1100 for (i = 0; i < reta_size / 16; i++) {
1102 for (j = 0; j < 16; j++)
1103 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1109 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1110 u32 *msgbuf, u32 vf)
1112 u32 *rss_key = &msgbuf[1];
1114 /* Check if the operation is permitted */
1115 if (!adapter->vfinfo[vf].rss_query_enabled)
1118 /* verify the PF is supporting the correct API */
1119 switch (adapter->vfinfo[vf].vf_api) {
1120 case ixgbe_mbox_api_14:
1121 case ixgbe_mbox_api_13:
1122 case ixgbe_mbox_api_12:
1128 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1133 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1134 u32 *msgbuf, u32 vf)
1136 struct ixgbe_hw *hw = &adapter->hw;
1137 int xcast_mode = msgbuf[1];
1138 u32 vmolr, fctrl, disable, enable;
1140 /* verify the PF is supporting the correct APIs */
1141 switch (adapter->vfinfo[vf].vf_api) {
1142 case ixgbe_mbox_api_12:
1143 /* promisc introduced in 1.3 version */
1144 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1147 case ixgbe_mbox_api_13:
1148 case ixgbe_mbox_api_14:
1154 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1155 !adapter->vfinfo[vf].trusted) {
1156 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1159 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1162 switch (xcast_mode) {
1163 case IXGBEVF_XCAST_MODE_NONE:
1164 disable = IXGBE_VMOLR_ROMPE |
1165 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1166 enable = IXGBE_VMOLR_BAM;
1168 case IXGBEVF_XCAST_MODE_MULTI:
1169 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1170 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1172 case IXGBEVF_XCAST_MODE_ALLMULTI:
1173 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1174 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1176 case IXGBEVF_XCAST_MODE_PROMISC:
1177 if (hw->mac.type <= ixgbe_mac_82599EB)
1180 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1181 if (!(fctrl & IXGBE_FCTRL_UPE)) {
1182 /* VF promisc requires PF in promisc */
1184 "Enabling VF promisc requires PF in promisc\n");
1188 disable = IXGBE_VMOLR_VPE;
1189 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1190 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1196 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1199 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1201 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1204 msgbuf[1] = xcast_mode;
1209 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1211 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1212 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1213 struct ixgbe_hw *hw = &adapter->hw;
1216 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1219 pr_err("Error receiving message from VF\n");
1223 /* this is a message we already processed, do nothing */
1224 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1227 /* flush the ack before we write any messages back */
1228 IXGBE_WRITE_FLUSH(hw);
1230 if (msgbuf[0] == IXGBE_VF_RESET)
1231 return ixgbe_vf_reset_msg(adapter, vf);
1234 * until the vf completes a virtual function reset it should not be
1235 * allowed to start any configuration.
1237 if (!adapter->vfinfo[vf].clear_to_send) {
1238 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1239 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1243 switch ((msgbuf[0] & 0xFFFF)) {
1244 case IXGBE_VF_SET_MAC_ADDR:
1245 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1247 case IXGBE_VF_SET_MULTICAST:
1248 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1250 case IXGBE_VF_SET_VLAN:
1251 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1253 case IXGBE_VF_SET_LPE:
1254 retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1256 case IXGBE_VF_SET_MACVLAN:
1257 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1259 case IXGBE_VF_API_NEGOTIATE:
1260 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1262 case IXGBE_VF_GET_QUEUES:
1263 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1265 case IXGBE_VF_GET_RETA:
1266 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1268 case IXGBE_VF_GET_RSS_KEY:
1269 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1271 case IXGBE_VF_UPDATE_XCAST_MODE:
1272 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1274 case IXGBE_VF_IPSEC_ADD:
1275 retval = ixgbe_ipsec_vf_add_sa(adapter, msgbuf, vf);
1277 case IXGBE_VF_IPSEC_DEL:
1278 retval = ixgbe_ipsec_vf_del_sa(adapter, msgbuf, vf);
1281 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1286 /* notify the VF of the results of what it sent us */
1288 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1290 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1292 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1294 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1299 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1301 struct ixgbe_hw *hw = &adapter->hw;
1302 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1304 /* if device isn't clear to send it shouldn't be reading either */
1305 if (!adapter->vfinfo[vf].clear_to_send)
1306 ixgbe_write_mbx(hw, &msg, 1, vf);
1309 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1311 struct ixgbe_hw *hw = &adapter->hw;
1312 unsigned long flags;
1315 spin_lock_irqsave(&adapter->vfs_lock, flags);
1316 for (vf = 0; vf < adapter->num_vfs; vf++) {
1317 /* process any reset requests */
1318 if (!ixgbe_check_for_rst(hw, vf))
1319 ixgbe_vf_reset_event(adapter, vf);
1321 /* process any messages pending */
1322 if (!ixgbe_check_for_msg(hw, vf))
1323 ixgbe_rcv_msg_from_vf(adapter, vf);
1325 /* process any acks */
1326 if (!ixgbe_check_for_ack(hw, vf))
1327 ixgbe_rcv_ack_from_vf(adapter, vf);
1329 spin_unlock_irqrestore(&adapter->vfs_lock, flags);
1332 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
1334 struct ixgbe_hw *hw = &adapter->hw;
1336 /* disable transmit and receive for all vfs */
1337 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
1338 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
1340 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
1341 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
1344 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1346 struct ixgbe_hw *hw = &adapter->hw;
1349 ping = IXGBE_PF_CONTROL_MSG;
1350 if (adapter->vfinfo[vf].clear_to_send)
1351 ping |= IXGBE_VT_MSGTYPE_CTS;
1352 ixgbe_write_mbx(hw, &ping, 1, vf);
1355 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1357 struct ixgbe_hw *hw = &adapter->hw;
1361 for (i = 0 ; i < adapter->num_vfs; i++) {
1362 ping = IXGBE_PF_CONTROL_MSG;
1363 if (adapter->vfinfo[i].clear_to_send)
1364 ping |= IXGBE_VT_MSGTYPE_CTS;
1365 ixgbe_write_mbx(hw, &ping, 1, i);
1369 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1371 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1374 if (vf >= adapter->num_vfs)
1377 if (is_valid_ether_addr(mac)) {
1378 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1380 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1382 retval = ixgbe_set_vf_mac(adapter, vf, mac);
1384 adapter->vfinfo[vf].pf_set_mac = true;
1386 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1387 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1388 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1391 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1393 } else if (is_zero_ether_addr(mac)) {
1394 unsigned char *vf_mac_addr =
1395 adapter->vfinfo[vf].vf_mac_addresses;
1398 if (is_zero_ether_addr(vf_mac_addr))
1401 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1403 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1405 adapter->vfinfo[vf].pf_set_mac = false;
1406 memcpy(vf_mac_addr, mac, ETH_ALEN);
1408 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1417 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1420 struct ixgbe_hw *hw = &adapter->hw;
1423 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1427 /* Revoke tagless access via VLAN 0 */
1428 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1430 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1431 ixgbe_set_vmolr(hw, vf, false);
1433 /* enable hide vlan on X550 */
1434 if (hw->mac.type >= ixgbe_mac_X550)
1435 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1436 IXGBE_QDE_HIDE_VLAN);
1438 adapter->vfinfo[vf].pf_vlan = vlan;
1439 adapter->vfinfo[vf].pf_qos = qos;
1440 dev_info(&adapter->pdev->dev,
1441 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1442 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1443 dev_warn(&adapter->pdev->dev,
1444 "The VF VLAN has been set, but the PF device is not up.\n");
1445 dev_warn(&adapter->pdev->dev,
1446 "Bring the PF device up before attempting to use the VF device.\n");
1453 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1455 struct ixgbe_hw *hw = &adapter->hw;
1458 err = ixgbe_set_vf_vlan(adapter, false,
1459 adapter->vfinfo[vf].pf_vlan, vf);
1460 /* Restore tagless access via VLAN 0 */
1461 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1462 ixgbe_clear_vmvir(adapter, vf);
1463 ixgbe_set_vmolr(hw, vf, true);
1465 /* disable hide VLAN on X550 */
1466 if (hw->mac.type >= ixgbe_mac_X550)
1467 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1469 adapter->vfinfo[vf].pf_vlan = 0;
1470 adapter->vfinfo[vf].pf_qos = 0;
1475 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1476 u8 qos, __be16 vlan_proto)
1479 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1481 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1483 if (vlan_proto != htons(ETH_P_8021Q))
1484 return -EPROTONOSUPPORT;
1486 /* Check if there is already a port VLAN set, if so
1487 * we have to delete the old one first before we
1488 * can set the new one. The usage model had
1489 * previously assumed the user would delete the
1490 * old port VLAN before setting a new one but this
1491 * is not necessarily the case.
1493 if (adapter->vfinfo[vf].pf_vlan)
1494 err = ixgbe_disable_port_vlan(adapter, vf);
1497 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1499 err = ixgbe_disable_port_vlan(adapter, vf);
1506 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1508 switch (adapter->link_speed) {
1509 case IXGBE_LINK_SPEED_100_FULL:
1511 case IXGBE_LINK_SPEED_1GB_FULL:
1513 case IXGBE_LINK_SPEED_10GB_FULL:
1520 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1522 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1523 struct ixgbe_hw *hw = &adapter->hw;
1525 u16 queue, queues_per_pool;
1526 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1529 /* start with base link speed value */
1530 bcnrc_val = adapter->vf_rate_link_speed;
1532 /* Calculate the rate factor values to set */
1533 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1534 bcnrc_val /= tx_rate;
1536 /* clear everything but the rate factor */
1537 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1538 IXGBE_RTTBCNRC_RF_DEC_MASK;
1540 /* enable the rate scheduler */
1541 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1545 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1546 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1547 * and 0x004 otherwise.
1549 switch (hw->mac.type) {
1550 case ixgbe_mac_82599EB:
1551 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1553 case ixgbe_mac_X540:
1554 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1560 /* determine how many queues per pool based on VMDq mask */
1561 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1563 /* write value for all Tx queues belonging to VF */
1564 for (queue = 0; queue < queues_per_pool; queue++) {
1565 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1567 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1568 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1572 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1576 /* VF Tx rate limit was not set */
1577 if (!adapter->vf_rate_link_speed)
1580 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1581 adapter->vf_rate_link_speed = 0;
1582 dev_info(&adapter->pdev->dev,
1583 "Link speed has been changed. VF Transmit rate is disabled\n");
1586 for (i = 0; i < adapter->num_vfs; i++) {
1587 if (!adapter->vf_rate_link_speed)
1588 adapter->vfinfo[i].tx_rate = 0;
1590 ixgbe_set_vf_rate_limit(adapter, i);
1594 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1597 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1600 /* verify VF is active */
1601 if (vf >= adapter->num_vfs)
1604 /* verify link is up */
1605 if (!adapter->link_up)
1608 /* verify we are linked at 10Gbps */
1609 link_speed = ixgbe_link_mbps(adapter);
1610 if (link_speed != 10000)
1616 /* rate limit cannot be less than 10Mbs or greater than link speed */
1617 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1621 adapter->vf_rate_link_speed = link_speed;
1622 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1624 /* update hardware configuration */
1625 ixgbe_set_vf_rate_limit(adapter, vf);
1630 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1632 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1633 struct ixgbe_hw *hw = &adapter->hw;
1635 if (vf >= adapter->num_vfs)
1638 adapter->vfinfo[vf].spoofchk_enabled = setting;
1640 /* configure MAC spoofing */
1641 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1643 /* configure VLAN spoofing */
1644 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1646 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1647 * calling set_ethertype_anti_spoofing for each VF in loop below
1649 if (hw->mac.ops.set_ethertype_anti_spoofing) {
1650 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1651 (IXGBE_ETQF_FILTER_EN |
1652 IXGBE_ETQF_TX_ANTISPOOF |
1655 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1656 (IXGBE_ETQF_FILTER_EN |
1657 IXGBE_ETQF_TX_ANTISPOOF |
1660 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1666 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1669 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1671 /* This operation is currently supported only for 82599 and x540
1674 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1675 adapter->hw.mac.type >= ixgbe_mac_X550)
1678 if (vf >= adapter->num_vfs)
1681 adapter->vfinfo[vf].rss_query_enabled = setting;
1686 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1688 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1690 if (vf >= adapter->num_vfs)
1694 if (adapter->vfinfo[vf].trusted == setting)
1697 adapter->vfinfo[vf].trusted = setting;
1699 /* reset VF to reconfigure features */
1700 adapter->vfinfo[vf].clear_to_send = false;
1701 ixgbe_ping_vf(adapter, vf);
1703 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1708 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1709 int vf, struct ifla_vf_info *ivi)
1711 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1712 if (vf >= adapter->num_vfs)
1715 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1716 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1717 ivi->min_tx_rate = 0;
1718 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1719 ivi->qos = adapter->vfinfo[vf].pf_qos;
1720 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1721 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1722 ivi->trusted = adapter->vfinfo[vf].trusted;