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 /* Enable VMDq flag so device will be set in VM mode */
57 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
58 IXGBE_FLAG_VMDQ_ENABLED;
60 /* Allocate memory for per VF control structures */
61 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
66 adapter->num_vfs = num_vfs;
68 ixgbe_alloc_vf_macvlans(adapter, num_vfs);
69 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
71 /* Initialize default switching mode VEB */
72 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
73 adapter->bridge_mode = BRIDGE_MODE_VEB;
75 /* limit trafffic classes based on VFs enabled */
76 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
77 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
78 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
79 } else if (num_vfs < 32) {
80 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
81 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
83 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
84 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
87 /* Disable RSC when in SR-IOV mode */
88 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
89 IXGBE_FLAG2_RSC_ENABLED);
91 for (i = 0; i < num_vfs; i++) {
92 /* enable spoof checking for all VFs */
93 adapter->vfinfo[i].spoofchk_enabled = true;
95 /* We support VF RSS querying only for 82599 and x540
96 * devices at the moment. These devices share RSS
97 * indirection table and RSS hash key with PF therefore
98 * we want to disable the querying by default.
100 adapter->vfinfo[i].rss_query_enabled = 0;
102 /* Untrust all VFs */
103 adapter->vfinfo[i].trusted = false;
105 /* set the default xcast mode */
106 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
109 e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
114 * ixgbe_get_vfs - Find and take references to all vf devices
115 * @adapter: Pointer to adapter struct
117 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
119 struct pci_dev *pdev = adapter->pdev;
120 u16 vendor = pdev->vendor;
121 struct pci_dev *vfdev;
126 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
129 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
131 vfdev = pci_get_device(vendor, vf_id, NULL);
132 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
133 if (!vfdev->is_virtfn)
135 if (vfdev->physfn != pdev)
137 if (vf >= adapter->num_vfs)
140 adapter->vfinfo[vf].vfdev = vfdev;
145 /* Note this function is called when the user wants to enable SR-IOV
146 * VFs using the now deprecated module parameter
148 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
150 int pre_existing_vfs = 0;
151 unsigned int num_vfs;
153 pre_existing_vfs = pci_num_vf(adapter->pdev);
154 if (!pre_existing_vfs && !max_vfs)
157 /* If there are pre-existing VFs then we have to force
158 * use of that many - over ride any module parameter value.
159 * This may result from the user unloading the PF driver
160 * while VFs were assigned to guest VMs or because the VFs
161 * have been created via the new PCI SR-IOV sysfs interface.
163 if (pre_existing_vfs) {
164 num_vfs = pre_existing_vfs;
165 dev_warn(&adapter->pdev->dev,
166 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
170 * The 82599 supports up to 64 VFs per physical function
171 * but this implementation limits allocation to 63 so that
172 * basic networking resources are still available to the
173 * physical function. If the user requests greater than
174 * 63 VFs then it is an error - reset to default of zero.
176 num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
178 err = pci_enable_sriov(adapter->pdev, num_vfs);
180 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
185 if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
186 ixgbe_get_vfs(adapter);
190 /* If we have gotten to this point then there is no memory available
191 * to manage the VF devices - print message and bail.
193 e_err(probe, "Unable to allocate memory for VF Data Storage - "
195 ixgbe_disable_sriov(adapter);
198 #endif /* #ifdef CONFIG_PCI_IOV */
199 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
201 unsigned int num_vfs = adapter->num_vfs, vf;
204 /* set num VFs to 0 to prevent access to vfinfo */
205 adapter->num_vfs = 0;
207 /* put the reference to all of the vf devices */
208 for (vf = 0; vf < num_vfs; ++vf) {
209 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
213 adapter->vfinfo[vf].vfdev = NULL;
217 /* free VF control structures */
218 kfree(adapter->vfinfo);
219 adapter->vfinfo = NULL;
221 /* free macvlan list */
222 kfree(adapter->mv_list);
223 adapter->mv_list = NULL;
225 /* if SR-IOV is already disabled then there is nothing to do */
226 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
229 #ifdef CONFIG_PCI_IOV
231 * If our VFs are assigned we cannot shut down SR-IOV
232 * without causing issues, so just leave the hardware
233 * available but disabled
235 if (pci_vfs_assigned(adapter->pdev)) {
236 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
239 /* disable iov and allow time for transactions to clear */
240 pci_disable_sriov(adapter->pdev);
243 /* Disable VMDq flag so device will be set in VM mode */
244 if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
245 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
246 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
247 rss = min_t(int, ixgbe_max_rss_indices(adapter),
250 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
253 adapter->ring_feature[RING_F_VMDQ].offset = 0;
254 adapter->ring_feature[RING_F_RSS].limit = rss;
256 /* take a breather then clean up driver data */
261 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
263 #ifdef CONFIG_PCI_IOV
264 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
265 int pre_existing_vfs = pci_num_vf(dev);
266 int err = 0, num_rx_pools, i, limit;
269 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
270 err = ixgbe_disable_sriov(adapter);
271 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
277 /* While the SR-IOV capability structure reports total VFs to be 64,
278 * we limit the actual number allocated as below based on two factors.
283 * First, we reserve some transmit/receive resources for the PF.
284 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
285 * account for this, so that we don't accidentally allocate more VFs
286 * than we have available pools. The PCI bus driver already checks for
287 * other values out of range.
289 num_tc = adapter->hw_tcs;
290 num_rx_pools = bitmap_weight(adapter->fwd_bitmask,
291 adapter->num_rx_pools);
292 limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC :
293 (num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC;
295 if (num_vfs > (limit - num_rx_pools)) {
296 e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
297 num_tc, num_rx_pools - 1, limit - num_rx_pools);
301 err = __ixgbe_enable_sriov(adapter, num_vfs);
305 for (i = 0; i < num_vfs; i++)
306 ixgbe_vf_configuration(dev, (i | 0x10000000));
308 /* reset before enabling SRIOV to avoid mailbox issues */
309 ixgbe_sriov_reinit(adapter);
311 err = pci_enable_sriov(dev, num_vfs);
313 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
316 ixgbe_get_vfs(adapter);
324 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
326 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
328 #ifdef CONFIG_PCI_IOV
329 u32 current_flags = adapter->flags;
330 int prev_num_vf = pci_num_vf(dev);
333 err = ixgbe_disable_sriov(adapter);
335 /* Only reinit if no error and state changed */
336 #ifdef CONFIG_PCI_IOV
337 if (!err && (current_flags != adapter->flags ||
338 prev_num_vf != pci_num_vf(dev)))
339 ixgbe_sriov_reinit(adapter);
345 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
348 return ixgbe_pci_sriov_disable(dev);
350 return ixgbe_pci_sriov_enable(dev, num_vfs);
353 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
356 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
357 >> IXGBE_VT_MSGINFO_SHIFT;
358 u16 *hash_list = (u16 *)&msgbuf[1];
359 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
360 struct ixgbe_hw *hw = &adapter->hw;
365 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
367 /* only so many hash values supported */
368 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
371 * salt away the number of multi cast addresses assigned
372 * to this VF for later use to restore when the PF multi cast
375 vfinfo->num_vf_mc_hashes = entries;
378 * VFs are limited to using the MTA hash table for their multicast
381 for (i = 0; i < entries; i++) {
382 vfinfo->vf_mc_hashes[i] = hash_list[i];
385 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
386 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
387 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
388 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
389 mta_reg |= BIT(vector_bit);
390 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
392 vmolr |= IXGBE_VMOLR_ROMPE;
393 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
398 #ifdef CONFIG_PCI_IOV
399 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
401 struct ixgbe_hw *hw = &adapter->hw;
402 struct vf_data_storage *vfinfo;
408 for (i = 0; i < adapter->num_vfs; i++) {
409 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
410 vfinfo = &adapter->vfinfo[i];
411 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
412 hw->addr_ctrl.mta_in_use++;
413 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
414 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
415 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
416 mta_reg |= BIT(vector_bit);
417 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
420 if (vfinfo->num_vf_mc_hashes)
421 vmolr |= IXGBE_VMOLR_ROMPE;
423 vmolr &= ~IXGBE_VMOLR_ROMPE;
424 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
427 /* Restore any VF macvlans */
428 ixgbe_full_sync_mac_table(adapter);
432 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
435 struct ixgbe_hw *hw = &adapter->hw;
438 /* If VLAN overlaps with one the PF is currently monitoring make
439 * sure that we are able to allocate a VLVF entry. This may be
440 * redundant but it guarantees PF will maintain visibility to
443 if (add && test_bit(vid, adapter->active_vlans)) {
444 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
449 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
454 /* If we failed to add the VF VLAN or we are removing the VF VLAN
455 * we may need to drop the PF pool bit in order to allow us to free
456 * up the VLVF resources.
458 if (test_bit(vid, adapter->active_vlans) ||
459 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
460 ixgbe_update_pf_promisc_vlvf(adapter, vid);
465 static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
467 struct ixgbe_hw *hw = &adapter->hw;
468 int max_frame = msgbuf[1];
472 * For 82599EB we have to keep all PFs and VFs operating with
473 * the same max_frame value in order to avoid sending an oversize
474 * frame to a VF. In order to guarantee this is handled correctly
475 * for all cases we have several special exceptions to take into
476 * account before we can enable the VF for receive
478 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
479 struct net_device *dev = adapter->netdev;
480 int pf_max_frame = dev->mtu + ETH_HLEN;
481 u32 reg_offset, vf_shift, vfre;
485 if (dev->features & NETIF_F_FCOE_MTU)
486 pf_max_frame = max_t(int, pf_max_frame,
487 IXGBE_FCOE_JUMBO_FRAME_SIZE);
489 #endif /* CONFIG_FCOE */
490 switch (adapter->vfinfo[vf].vf_api) {
491 case ixgbe_mbox_api_11:
492 case ixgbe_mbox_api_12:
493 case ixgbe_mbox_api_13:
494 /* Version 1.1 supports jumbo frames on VFs if PF has
495 * jumbo frames enabled which means legacy VFs are
498 if (pf_max_frame > ETH_FRAME_LEN)
502 /* If the PF or VF are running w/ jumbo frames enabled
503 * we need to shut down the VF Rx path as we cannot
504 * support jumbo frames on legacy VFs
506 if ((pf_max_frame > ETH_FRAME_LEN) ||
507 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
512 /* determine VF receive enable location */
514 reg_offset = vf / 32;
516 /* enable or disable receive depending on error */
517 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
519 vfre &= ~BIT(vf_shift);
521 vfre |= BIT(vf_shift);
522 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
525 e_err(drv, "VF max_frame %d out of range\n", max_frame);
530 /* MTU < 68 is an error and causes problems on some kernels */
531 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
532 e_err(drv, "VF max_frame %d out of range\n", max_frame);
536 /* pull current max frame size from hardware */
537 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
538 max_frs &= IXGBE_MHADD_MFS_MASK;
539 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
541 if (max_frs < max_frame) {
542 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
543 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
546 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
551 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
553 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
554 vmolr |= IXGBE_VMOLR_BAM;
556 vmolr |= IXGBE_VMOLR_AUPE;
558 vmolr &= ~IXGBE_VMOLR_AUPE;
559 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
562 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
564 struct ixgbe_hw *hw = &adapter->hw;
566 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
569 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
571 struct ixgbe_hw *hw = &adapter->hw;
572 u32 vlvfb_mask, pool_mask, i;
574 /* create mask for VF and other pools */
575 pool_mask = ~BIT(VMDQ_P(0) % 32);
576 vlvfb_mask = BIT(vf % 32);
578 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
579 for (i = IXGBE_VLVF_ENTRIES; i--;) {
580 u32 bits[2], vlvfb, vid, vfta, vlvf;
581 u32 word = i * 2 + vf / 32;
584 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
586 /* if our bit isn't set we can skip it */
587 if (!(vlvfb & vlvfb_mask))
590 /* clear our bit from vlvfb */
593 /* create 64b mask to chedk to see if we should clear VLVF */
594 bits[word % 2] = vlvfb;
595 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
597 /* if other pools are present, just remove ourselves */
598 if (bits[(VMDQ_P(0) / 32) ^ 1] ||
599 (bits[VMDQ_P(0) / 32] & pool_mask))
602 /* if PF is present, leave VFTA */
603 if (bits[0] || bits[1])
606 /* if we cannot determine VLAN just remove ourselves */
607 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
611 vid = vlvf & VLAN_VID_MASK;
612 mask = BIT(vid % 32);
614 /* clear bit from VFTA */
615 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
617 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
619 /* clear POOL selection enable */
620 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
622 if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
625 /* clear pool bits */
626 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
630 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
631 int vf, int index, unsigned char *mac_addr)
633 struct vf_macvlans *entry;
634 struct list_head *pos;
638 list_for_each(pos, &adapter->vf_mvs.l) {
639 entry = list_entry(pos, struct vf_macvlans, l);
640 if (entry->vf == vf) {
643 entry->is_macvlan = false;
644 ixgbe_del_mac_filter(adapter,
645 entry->vf_macvlan, vf);
651 * If index was zero then we were asked to clear the uc list
652 * for the VF. We're done.
659 list_for_each(pos, &adapter->vf_mvs.l) {
660 entry = list_entry(pos, struct vf_macvlans, l);
666 * If we traversed the entire list and didn't find a free entry
667 * then we're out of space on the RAR table. Also entry may
668 * be NULL because the original memory allocation for the list
669 * failed, which is not fatal but does mean we can't support
670 * VF requests for MACVLAN because we couldn't allocate
671 * memory for the list management required.
673 if (!entry || !entry->free)
676 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
681 entry->is_macvlan = true;
683 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
688 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
690 struct ixgbe_hw *hw = &adapter->hw;
691 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
692 u8 num_tcs = adapter->hw_tcs;
694 /* remove VLAN filters beloning to this VF */
695 ixgbe_clear_vf_vlans(adapter, vf);
697 /* add back PF assigned VLAN or VLAN 0 */
698 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
700 /* reset offloads to defaults */
701 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
703 /* set outgoing tags for VFs */
704 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
705 ixgbe_clear_vmvir(adapter, vf);
707 if (vfinfo->pf_qos || !num_tcs)
708 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
711 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
712 adapter->default_up, vf);
714 if (vfinfo->spoofchk_enabled)
715 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
718 /* reset multicast table array for vf */
719 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
721 /* Flush and reset the mta with the new values */
722 ixgbe_set_rx_mode(adapter->netdev);
724 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
725 ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
727 /* reset VF api back to unknown */
728 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
731 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
732 int vf, unsigned char *mac_addr)
736 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
737 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
739 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
742 memset(adapter->vfinfo[vf].vf_mac_addresses, 0, ETH_ALEN);
747 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
749 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
750 unsigned int vfn = (event_mask & 0x3f);
752 bool enable = ((event_mask & 0x10000000U) != 0);
755 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
760 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
763 struct ixgbe_hw *hw = &adapter->hw;
764 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
765 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
768 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
771 /* flush previous write */
772 IXGBE_WRITE_FLUSH(hw);
774 /* indicate to hardware that we want to set drop enable */
775 reg = IXGBE_QDE_WRITE | qde;
776 reg |= i << IXGBE_QDE_IDX_SHIFT;
777 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
781 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
783 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
784 struct ixgbe_hw *hw = &adapter->hw;
785 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
786 u32 reg, reg_offset, vf_shift;
787 u32 msgbuf[4] = {0, 0, 0, 0};
788 u8 *addr = (u8 *)(&msgbuf[1]);
789 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
792 e_info(probe, "VF Reset msg received from vf %d\n", vf);
794 /* reset the filters for the device */
795 ixgbe_vf_reset_event(adapter, vf);
797 /* set vf mac address */
798 if (!is_zero_ether_addr(vf_mac))
799 ixgbe_set_vf_mac(adapter, vf, vf_mac);
802 reg_offset = vf / 32;
804 /* enable transmit for vf */
805 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
806 reg |= BIT(vf_shift);
807 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
809 /* force drop enable for all VF Rx queues */
810 reg = IXGBE_QDE_ENABLE;
811 if (adapter->vfinfo[vf].pf_vlan)
812 reg |= IXGBE_QDE_HIDE_VLAN;
814 ixgbe_write_qde(adapter, vf, reg);
816 /* enable receive for vf */
817 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
818 reg |= BIT(vf_shift);
820 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
821 * For more info take a look at ixgbe_set_vf_lpe
823 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
824 struct net_device *dev = adapter->netdev;
825 int pf_max_frame = dev->mtu + ETH_HLEN;
828 if (dev->features & NETIF_F_FCOE_MTU)
829 pf_max_frame = max_t(int, pf_max_frame,
830 IXGBE_FCOE_JUMBO_FRAME_SIZE);
832 #endif /* CONFIG_FCOE */
833 if (pf_max_frame > ETH_FRAME_LEN)
834 reg &= ~BIT(vf_shift);
836 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
838 /* enable VF mailbox for further messages */
839 adapter->vfinfo[vf].clear_to_send = true;
841 /* Enable counting of spoofed packets in the SSVPC register */
842 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
843 reg |= BIT(vf_shift);
844 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
847 * Reset the VFs TDWBAL and TDWBAH registers
848 * which are not cleared by an FLR
850 for (i = 0; i < q_per_pool; i++) {
851 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
852 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
855 /* reply to reset with ack and vf mac address */
856 msgbuf[0] = IXGBE_VF_RESET;
857 if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) {
858 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
859 memcpy(addr, vf_mac, ETH_ALEN);
861 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
865 * Piggyback the multicast filter type so VF can compute the
868 msgbuf[3] = hw->mac.mc_filter_type;
869 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
874 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
877 u8 *new_mac = ((u8 *)(&msgbuf[1]));
879 if (!is_valid_ether_addr(new_mac)) {
880 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
884 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
885 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
887 "VF %d attempted to override administratively set MAC address\n"
888 "Reload the VF driver to resume operations\n",
893 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
896 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
899 u32 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
900 u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
901 u8 tcs = adapter->hw_tcs;
903 if (adapter->vfinfo[vf].pf_vlan || tcs) {
905 "VF %d attempted to override administratively set VLAN configuration\n"
906 "Reload the VF driver to resume operations\n",
911 /* VLAN 0 is a special case, don't allow it to be removed */
915 return ixgbe_set_vf_vlan(adapter, add, vid, vf);
918 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
921 u8 *new_mac = ((u8 *)(&msgbuf[1]));
922 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
923 IXGBE_VT_MSGINFO_SHIFT;
926 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
929 "VF %d requested MACVLAN filter but is administratively denied\n",
934 /* An non-zero index indicates the VF is setting a filter */
936 if (!is_valid_ether_addr(new_mac)) {
937 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
942 * If the VF is allowed to set MAC filters then turn off
943 * anti-spoofing to avoid false positives.
945 if (adapter->vfinfo[vf].spoofchk_enabled) {
946 struct ixgbe_hw *hw = &adapter->hw;
948 hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
949 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
953 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
956 "VF %d has requested a MACVLAN filter but there is no space for it\n",
962 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
968 case ixgbe_mbox_api_10:
969 case ixgbe_mbox_api_11:
970 case ixgbe_mbox_api_12:
971 case ixgbe_mbox_api_13:
972 adapter->vfinfo[vf].vf_api = api;
978 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
983 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
986 struct net_device *dev = adapter->netdev;
987 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
988 unsigned int default_tc = 0;
989 u8 num_tcs = adapter->hw_tcs;
991 /* verify the PF is supporting the correct APIs */
992 switch (adapter->vfinfo[vf].vf_api) {
993 case ixgbe_mbox_api_20:
994 case ixgbe_mbox_api_11:
995 case ixgbe_mbox_api_12:
996 case ixgbe_mbox_api_13:
1002 /* only allow 1 Tx queue for bandwidth limiting */
1003 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1004 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1006 /* if TCs > 1 determine which TC belongs to default user priority */
1008 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1010 /* notify VF of need for VLAN tag stripping, and correct queue */
1012 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1013 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1014 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1016 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1018 /* notify VF of default queue */
1019 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1024 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1027 u32 *out_buf = &msgbuf[1];
1028 const u8 *reta = adapter->rss_indir_tbl;
1029 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1031 /* Check if operation is permitted */
1032 if (!adapter->vfinfo[vf].rss_query_enabled)
1035 /* verify the PF is supporting the correct API */
1036 switch (adapter->vfinfo[vf].vf_api) {
1037 case ixgbe_mbox_api_13:
1038 case ixgbe_mbox_api_12:
1044 /* This mailbox command is supported (required) only for 82599 and x540
1045 * VFs which support up to 4 RSS queues. Therefore we will compress the
1046 * RETA by saving only 2 bits from each entry. This way we will be able
1047 * to transfer the whole RETA in a single mailbox operation.
1049 for (i = 0; i < reta_size / 16; i++) {
1051 for (j = 0; j < 16; j++)
1052 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1058 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1059 u32 *msgbuf, u32 vf)
1061 u32 *rss_key = &msgbuf[1];
1063 /* Check if the operation is permitted */
1064 if (!adapter->vfinfo[vf].rss_query_enabled)
1067 /* verify the PF is supporting the correct API */
1068 switch (adapter->vfinfo[vf].vf_api) {
1069 case ixgbe_mbox_api_13:
1070 case ixgbe_mbox_api_12:
1076 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1081 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1082 u32 *msgbuf, u32 vf)
1084 struct ixgbe_hw *hw = &adapter->hw;
1085 int xcast_mode = msgbuf[1];
1086 u32 vmolr, fctrl, disable, enable;
1088 /* verify the PF is supporting the correct APIs */
1089 switch (adapter->vfinfo[vf].vf_api) {
1090 case ixgbe_mbox_api_12:
1091 /* promisc introduced in 1.3 version */
1092 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1095 case ixgbe_mbox_api_13:
1101 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1102 !adapter->vfinfo[vf].trusted) {
1103 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1106 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1109 switch (xcast_mode) {
1110 case IXGBEVF_XCAST_MODE_NONE:
1111 disable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1112 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1115 case IXGBEVF_XCAST_MODE_MULTI:
1116 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1117 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1119 case IXGBEVF_XCAST_MODE_ALLMULTI:
1120 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1121 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1123 case IXGBEVF_XCAST_MODE_PROMISC:
1124 if (hw->mac.type <= ixgbe_mac_82599EB)
1127 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1128 if (!(fctrl & IXGBE_FCTRL_UPE)) {
1129 /* VF promisc requires PF in promisc */
1131 "Enabling VF promisc requires PF in promisc\n");
1136 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1137 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1143 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1146 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1148 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1151 msgbuf[1] = xcast_mode;
1156 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1158 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1159 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1160 struct ixgbe_hw *hw = &adapter->hw;
1163 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1166 pr_err("Error receiving message from VF\n");
1170 /* this is a message we already processed, do nothing */
1171 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1174 /* flush the ack before we write any messages back */
1175 IXGBE_WRITE_FLUSH(hw);
1177 if (msgbuf[0] == IXGBE_VF_RESET)
1178 return ixgbe_vf_reset_msg(adapter, vf);
1181 * until the vf completes a virtual function reset it should not be
1182 * allowed to start any configuration.
1184 if (!adapter->vfinfo[vf].clear_to_send) {
1185 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1186 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1190 switch ((msgbuf[0] & 0xFFFF)) {
1191 case IXGBE_VF_SET_MAC_ADDR:
1192 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1194 case IXGBE_VF_SET_MULTICAST:
1195 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1197 case IXGBE_VF_SET_VLAN:
1198 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1200 case IXGBE_VF_SET_LPE:
1201 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf);
1203 case IXGBE_VF_SET_MACVLAN:
1204 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1206 case IXGBE_VF_API_NEGOTIATE:
1207 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1209 case IXGBE_VF_GET_QUEUES:
1210 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1212 case IXGBE_VF_GET_RETA:
1213 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1215 case IXGBE_VF_GET_RSS_KEY:
1216 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1218 case IXGBE_VF_UPDATE_XCAST_MODE:
1219 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1222 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1223 retval = IXGBE_ERR_MBX;
1227 /* notify the VF of the results of what it sent us */
1229 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1231 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1233 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1235 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1240 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1242 struct ixgbe_hw *hw = &adapter->hw;
1243 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1245 /* if device isn't clear to send it shouldn't be reading either */
1246 if (!adapter->vfinfo[vf].clear_to_send)
1247 ixgbe_write_mbx(hw, &msg, 1, vf);
1250 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1252 struct ixgbe_hw *hw = &adapter->hw;
1255 for (vf = 0; vf < adapter->num_vfs; vf++) {
1256 /* process any reset requests */
1257 if (!ixgbe_check_for_rst(hw, vf))
1258 ixgbe_vf_reset_event(adapter, vf);
1260 /* process any messages pending */
1261 if (!ixgbe_check_for_msg(hw, vf))
1262 ixgbe_rcv_msg_from_vf(adapter, vf);
1264 /* process any acks */
1265 if (!ixgbe_check_for_ack(hw, vf))
1266 ixgbe_rcv_ack_from_vf(adapter, vf);
1270 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
1272 struct ixgbe_hw *hw = &adapter->hw;
1274 /* disable transmit and receive for all vfs */
1275 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
1276 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
1278 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
1279 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
1282 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1284 struct ixgbe_hw *hw = &adapter->hw;
1287 ping = IXGBE_PF_CONTROL_MSG;
1288 if (adapter->vfinfo[vf].clear_to_send)
1289 ping |= IXGBE_VT_MSGTYPE_CTS;
1290 ixgbe_write_mbx(hw, &ping, 1, vf);
1293 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1295 struct ixgbe_hw *hw = &adapter->hw;
1299 for (i = 0 ; i < adapter->num_vfs; i++) {
1300 ping = IXGBE_PF_CONTROL_MSG;
1301 if (adapter->vfinfo[i].clear_to_send)
1302 ping |= IXGBE_VT_MSGTYPE_CTS;
1303 ixgbe_write_mbx(hw, &ping, 1, i);
1307 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1309 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1312 if (vf >= adapter->num_vfs)
1315 if (is_valid_ether_addr(mac)) {
1316 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1318 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1320 retval = ixgbe_set_vf_mac(adapter, vf, mac);
1322 adapter->vfinfo[vf].pf_set_mac = true;
1324 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1325 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1326 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1329 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1331 } else if (is_zero_ether_addr(mac)) {
1332 unsigned char *vf_mac_addr =
1333 adapter->vfinfo[vf].vf_mac_addresses;
1336 if (is_zero_ether_addr(vf_mac_addr))
1339 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1341 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1343 adapter->vfinfo[vf].pf_set_mac = false;
1344 memcpy(vf_mac_addr, mac, ETH_ALEN);
1346 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1355 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1358 struct ixgbe_hw *hw = &adapter->hw;
1361 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1365 /* Revoke tagless access via VLAN 0 */
1366 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1368 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1369 ixgbe_set_vmolr(hw, vf, false);
1371 /* enable hide vlan on X550 */
1372 if (hw->mac.type >= ixgbe_mac_X550)
1373 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1374 IXGBE_QDE_HIDE_VLAN);
1376 adapter->vfinfo[vf].pf_vlan = vlan;
1377 adapter->vfinfo[vf].pf_qos = qos;
1378 dev_info(&adapter->pdev->dev,
1379 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1380 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1381 dev_warn(&adapter->pdev->dev,
1382 "The VF VLAN has been set, but the PF device is not up.\n");
1383 dev_warn(&adapter->pdev->dev,
1384 "Bring the PF device up before attempting to use the VF device.\n");
1391 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1393 struct ixgbe_hw *hw = &adapter->hw;
1396 err = ixgbe_set_vf_vlan(adapter, false,
1397 adapter->vfinfo[vf].pf_vlan, vf);
1398 /* Restore tagless access via VLAN 0 */
1399 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1400 ixgbe_clear_vmvir(adapter, vf);
1401 ixgbe_set_vmolr(hw, vf, true);
1403 /* disable hide VLAN on X550 */
1404 if (hw->mac.type >= ixgbe_mac_X550)
1405 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1407 adapter->vfinfo[vf].pf_vlan = 0;
1408 adapter->vfinfo[vf].pf_qos = 0;
1413 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1414 u8 qos, __be16 vlan_proto)
1417 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1419 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1421 if (vlan_proto != htons(ETH_P_8021Q))
1422 return -EPROTONOSUPPORT;
1424 /* Check if there is already a port VLAN set, if so
1425 * we have to delete the old one first before we
1426 * can set the new one. The usage model had
1427 * previously assumed the user would delete the
1428 * old port VLAN before setting a new one but this
1429 * is not necessarily the case.
1431 if (adapter->vfinfo[vf].pf_vlan)
1432 err = ixgbe_disable_port_vlan(adapter, vf);
1435 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1437 err = ixgbe_disable_port_vlan(adapter, vf);
1444 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1446 switch (adapter->link_speed) {
1447 case IXGBE_LINK_SPEED_100_FULL:
1449 case IXGBE_LINK_SPEED_1GB_FULL:
1451 case IXGBE_LINK_SPEED_10GB_FULL:
1458 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1460 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1461 struct ixgbe_hw *hw = &adapter->hw;
1463 u16 queue, queues_per_pool;
1464 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1467 /* start with base link speed value */
1468 bcnrc_val = adapter->vf_rate_link_speed;
1470 /* Calculate the rate factor values to set */
1471 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1472 bcnrc_val /= tx_rate;
1474 /* clear everything but the rate factor */
1475 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1476 IXGBE_RTTBCNRC_RF_DEC_MASK;
1478 /* enable the rate scheduler */
1479 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1483 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1484 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1485 * and 0x004 otherwise.
1487 switch (hw->mac.type) {
1488 case ixgbe_mac_82599EB:
1489 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1491 case ixgbe_mac_X540:
1492 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1498 /* determine how many queues per pool based on VMDq mask */
1499 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1501 /* write value for all Tx queues belonging to VF */
1502 for (queue = 0; queue < queues_per_pool; queue++) {
1503 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1505 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1506 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1510 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1514 /* VF Tx rate limit was not set */
1515 if (!adapter->vf_rate_link_speed)
1518 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1519 adapter->vf_rate_link_speed = 0;
1520 dev_info(&adapter->pdev->dev,
1521 "Link speed has been changed. VF Transmit rate is disabled\n");
1524 for (i = 0; i < adapter->num_vfs; i++) {
1525 if (!adapter->vf_rate_link_speed)
1526 adapter->vfinfo[i].tx_rate = 0;
1528 ixgbe_set_vf_rate_limit(adapter, i);
1532 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1535 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1538 /* verify VF is active */
1539 if (vf >= adapter->num_vfs)
1542 /* verify link is up */
1543 if (!adapter->link_up)
1546 /* verify we are linked at 10Gbps */
1547 link_speed = ixgbe_link_mbps(adapter);
1548 if (link_speed != 10000)
1554 /* rate limit cannot be less than 10Mbs or greater than link speed */
1555 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1559 adapter->vf_rate_link_speed = link_speed;
1560 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1562 /* update hardware configuration */
1563 ixgbe_set_vf_rate_limit(adapter, vf);
1568 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1570 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1571 struct ixgbe_hw *hw = &adapter->hw;
1573 if (vf >= adapter->num_vfs)
1576 adapter->vfinfo[vf].spoofchk_enabled = setting;
1578 /* configure MAC spoofing */
1579 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1581 /* configure VLAN spoofing */
1582 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1584 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1585 * calling set_ethertype_anti_spoofing for each VF in loop below
1587 if (hw->mac.ops.set_ethertype_anti_spoofing) {
1588 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1589 (IXGBE_ETQF_FILTER_EN |
1590 IXGBE_ETQF_TX_ANTISPOOF |
1593 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1594 (IXGBE_ETQF_FILTER_EN |
1595 IXGBE_ETQF_TX_ANTISPOOF |
1598 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1604 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1607 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1609 /* This operation is currently supported only for 82599 and x540
1612 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1613 adapter->hw.mac.type >= ixgbe_mac_X550)
1616 if (vf >= adapter->num_vfs)
1619 adapter->vfinfo[vf].rss_query_enabled = setting;
1624 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1626 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1628 if (vf >= adapter->num_vfs)
1632 if (adapter->vfinfo[vf].trusted == setting)
1635 adapter->vfinfo[vf].trusted = setting;
1637 /* reset VF to reconfigure features */
1638 adapter->vfinfo[vf].clear_to_send = false;
1639 ixgbe_ping_vf(adapter, vf);
1641 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1646 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1647 int vf, struct ifla_vf_info *ivi)
1649 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1650 if (vf >= adapter->num_vfs)
1653 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1654 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1655 ivi->min_tx_rate = 0;
1656 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1657 ivi->qos = adapter->vfinfo[vf].pf_qos;
1658 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1659 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1660 ivi->trusted = adapter->vfinfo[vf].trusted;