1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2015 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
29 #include <linux/types.h>
30 #include <linux/module.h>
31 #include <linux/pci.h>
32 #include <linux/netdevice.h>
33 #include <linux/vmalloc.h>
34 #include <linux/string.h>
37 #include <linux/tcp.h>
38 #include <linux/ipv6.h>
39 #include <linux/if_bridge.h>
40 #ifdef NETIF_F_HW_VLAN_CTAG_TX
41 #include <linux/if_vlan.h>
45 #include "ixgbe_type.h"
46 #include "ixgbe_sriov.h"
49 static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
52 struct ixgbe_hw *hw = &adapter->hw;
53 struct vf_macvlans *mv_list;
54 int num_vf_macvlans, i;
56 /* Initialize list of VF macvlans */
57 INIT_LIST_HEAD(&adapter->vf_mvs.l);
59 num_vf_macvlans = hw->mac.num_rar_entries -
60 (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
64 mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
67 for (i = 0; i < num_vf_macvlans; i++) {
69 mv_list[i].free = true;
70 list_add(&mv_list[i].l, &adapter->vf_mvs.l);
72 adapter->mv_list = mv_list;
76 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
79 struct ixgbe_hw *hw = &adapter->hw;
82 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
84 /* Enable VMDq flag so device will be set in VM mode */
85 adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED;
86 if (!adapter->ring_feature[RING_F_VMDQ].limit)
87 adapter->ring_feature[RING_F_VMDQ].limit = 1;
89 /* Allocate memory for per VF control structures */
90 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
95 adapter->num_vfs = num_vfs;
97 ixgbe_alloc_vf_macvlans(adapter, num_vfs);
98 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
100 /* Initialize default switching mode VEB */
101 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
102 adapter->bridge_mode = BRIDGE_MODE_VEB;
104 /* limit trafffic classes based on VFs enabled */
105 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
106 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
107 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
108 } else if (num_vfs < 32) {
109 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
110 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
112 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
113 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
116 /* Disable RSC when in SR-IOV mode */
117 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
118 IXGBE_FLAG2_RSC_ENABLED);
120 for (i = 0; i < num_vfs; i++) {
121 /* enable spoof checking for all VFs */
122 adapter->vfinfo[i].spoofchk_enabled = true;
124 /* We support VF RSS querying only for 82599 and x540
125 * devices at the moment. These devices share RSS
126 * indirection table and RSS hash key with PF therefore
127 * we want to disable the querying by default.
129 adapter->vfinfo[i].rss_query_enabled = 0;
131 /* Untrust all VFs */
132 adapter->vfinfo[i].trusted = false;
134 /* set the default xcast mode */
135 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
138 e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
143 * ixgbe_get_vfs - Find and take references to all vf devices
144 * @adapter: Pointer to adapter struct
146 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
148 struct pci_dev *pdev = adapter->pdev;
149 u16 vendor = pdev->vendor;
150 struct pci_dev *vfdev;
155 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
158 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
160 vfdev = pci_get_device(vendor, vf_id, NULL);
161 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
162 if (!vfdev->is_virtfn)
164 if (vfdev->physfn != pdev)
166 if (vf >= adapter->num_vfs)
169 adapter->vfinfo[vf].vfdev = vfdev;
174 /* Note this function is called when the user wants to enable SR-IOV
175 * VFs using the now deprecated module parameter
177 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
179 int pre_existing_vfs = 0;
180 unsigned int num_vfs;
182 pre_existing_vfs = pci_num_vf(adapter->pdev);
183 if (!pre_existing_vfs && !max_vfs)
186 /* If there are pre-existing VFs then we have to force
187 * use of that many - over ride any module parameter value.
188 * This may result from the user unloading the PF driver
189 * while VFs were assigned to guest VMs or because the VFs
190 * have been created via the new PCI SR-IOV sysfs interface.
192 if (pre_existing_vfs) {
193 num_vfs = pre_existing_vfs;
194 dev_warn(&adapter->pdev->dev,
195 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
199 * The 82599 supports up to 64 VFs per physical function
200 * but this implementation limits allocation to 63 so that
201 * basic networking resources are still available to the
202 * physical function. If the user requests greater than
203 * 63 VFs then it is an error - reset to default of zero.
205 num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
207 err = pci_enable_sriov(adapter->pdev, num_vfs);
209 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
214 if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
215 ixgbe_get_vfs(adapter);
219 /* If we have gotten to this point then there is no memory available
220 * to manage the VF devices - print message and bail.
222 e_err(probe, "Unable to allocate memory for VF Data Storage - "
224 ixgbe_disable_sriov(adapter);
227 #endif /* #ifdef CONFIG_PCI_IOV */
228 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
230 unsigned int num_vfs = adapter->num_vfs, vf;
231 struct ixgbe_hw *hw = &adapter->hw;
236 /* set num VFs to 0 to prevent access to vfinfo */
237 adapter->num_vfs = 0;
239 /* put the reference to all of the vf devices */
240 for (vf = 0; vf < num_vfs; ++vf) {
241 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
245 adapter->vfinfo[vf].vfdev = NULL;
249 /* free VF control structures */
250 kfree(adapter->vfinfo);
251 adapter->vfinfo = NULL;
253 /* free macvlan list */
254 kfree(adapter->mv_list);
255 adapter->mv_list = NULL;
257 /* if SR-IOV is already disabled then there is nothing to do */
258 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
261 #ifdef CONFIG_PCI_IOV
263 * If our VFs are assigned we cannot shut down SR-IOV
264 * without causing issues, so just leave the hardware
265 * available but disabled
267 if (pci_vfs_assigned(adapter->pdev)) {
268 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
271 /* disable iov and allow time for transactions to clear */
272 pci_disable_sriov(adapter->pdev);
275 /* turn off device IOV mode */
276 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0);
277 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
278 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
279 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
281 /* set default pool back to 0 */
282 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
283 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
284 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
285 IXGBE_WRITE_FLUSH(hw);
287 /* Disable VMDq flag so device will be set in VM mode */
288 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) {
289 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
290 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
291 rss = min_t(int, ixgbe_max_rss_indices(adapter),
294 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
297 adapter->ring_feature[RING_F_VMDQ].offset = 0;
298 adapter->ring_feature[RING_F_RSS].limit = rss;
300 /* take a breather then clean up driver data */
305 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
307 #ifdef CONFIG_PCI_IOV
308 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
312 int pre_existing_vfs = pci_num_vf(dev);
314 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
315 err = ixgbe_disable_sriov(adapter);
316 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
322 /* While the SR-IOV capability structure reports total VFs to be 64,
323 * we limit the actual number allocated as below based on two factors.
328 * First, we reserve some transmit/receive resources for the PF.
329 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
330 * account for this, so that we don't accidentally allocate more VFs
331 * than we have available pools. The PCI bus driver already checks for
332 * other values out of range.
334 num_tc = netdev_get_num_tc(adapter->netdev);
337 if ((num_vfs + adapter->num_rx_pools) > IXGBE_MAX_VFS_8TC) {
338 e_dev_err("Currently the device is configured with %d TCs, Creating more than %d VFs is not allowed\n", num_tc, IXGBE_MAX_VFS_8TC);
341 } else if ((num_tc > 1) && (num_tc <= 4)) {
342 if ((num_vfs + adapter->num_rx_pools) > IXGBE_MAX_VFS_4TC) {
343 e_dev_err("Currently the device is configured with %d TCs, Creating more than %d VFs is not allowed\n", num_tc, IXGBE_MAX_VFS_4TC);
347 if ((num_vfs + adapter->num_rx_pools) > IXGBE_MAX_VFS_1TC) {
348 e_dev_err("Currently the device is configured with %d TCs, Creating more than %d VFs is not allowed\n", num_tc, IXGBE_MAX_VFS_1TC);
353 err = __ixgbe_enable_sriov(adapter, num_vfs);
357 for (i = 0; i < num_vfs; i++)
358 ixgbe_vf_configuration(dev, (i | 0x10000000));
360 /* reset before enabling SRIOV to avoid mailbox issues */
361 ixgbe_sriov_reinit(adapter);
363 err = pci_enable_sriov(dev, num_vfs);
365 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
368 ixgbe_get_vfs(adapter);
376 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
378 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
380 #ifdef CONFIG_PCI_IOV
381 u32 current_flags = adapter->flags;
384 err = ixgbe_disable_sriov(adapter);
386 /* Only reinit if no error and state changed */
387 #ifdef CONFIG_PCI_IOV
388 if (!err && current_flags != adapter->flags)
389 ixgbe_sriov_reinit(adapter);
395 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
398 return ixgbe_pci_sriov_disable(dev);
400 return ixgbe_pci_sriov_enable(dev, num_vfs);
403 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
406 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
407 >> IXGBE_VT_MSGINFO_SHIFT;
408 u16 *hash_list = (u16 *)&msgbuf[1];
409 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
410 struct ixgbe_hw *hw = &adapter->hw;
415 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
417 /* only so many hash values supported */
418 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
421 * salt away the number of multi cast addresses assigned
422 * to this VF for later use to restore when the PF multi cast
425 vfinfo->num_vf_mc_hashes = entries;
428 * VFs are limited to using the MTA hash table for their multicast
431 for (i = 0; i < entries; i++) {
432 vfinfo->vf_mc_hashes[i] = hash_list[i];
435 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
436 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
437 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
438 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
439 mta_reg |= BIT(vector_bit);
440 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
442 vmolr |= IXGBE_VMOLR_ROMPE;
443 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
448 #ifdef CONFIG_PCI_IOV
449 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
451 struct ixgbe_hw *hw = &adapter->hw;
452 struct vf_data_storage *vfinfo;
458 for (i = 0; i < adapter->num_vfs; i++) {
459 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
460 vfinfo = &adapter->vfinfo[i];
461 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
462 hw->addr_ctrl.mta_in_use++;
463 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
464 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
465 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
466 mta_reg |= BIT(vector_bit);
467 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
470 if (vfinfo->num_vf_mc_hashes)
471 vmolr |= IXGBE_VMOLR_ROMPE;
473 vmolr &= ~IXGBE_VMOLR_ROMPE;
474 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
477 /* Restore any VF macvlans */
478 ixgbe_full_sync_mac_table(adapter);
482 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
485 struct ixgbe_hw *hw = &adapter->hw;
488 /* If VLAN overlaps with one the PF is currently monitoring make
489 * sure that we are able to allocate a VLVF entry. This may be
490 * redundant but it guarantees PF will maintain visibility to
493 if (add && test_bit(vid, adapter->active_vlans)) {
494 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
499 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
504 /* If we failed to add the VF VLAN or we are removing the VF VLAN
505 * we may need to drop the PF pool bit in order to allow us to free
506 * up the VLVF resources.
508 if (test_bit(vid, adapter->active_vlans) ||
509 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
510 ixgbe_update_pf_promisc_vlvf(adapter, vid);
515 static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
517 struct ixgbe_hw *hw = &adapter->hw;
520 if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
521 e_err(drv, "VF max_frame %d out of range\n", max_frame);
526 * For 82599EB we have to keep all PFs and VFs operating with
527 * the same max_frame value in order to avoid sending an oversize
528 * frame to a VF. In order to guarantee this is handled correctly
529 * for all cases we have several special exceptions to take into
530 * account before we can enable the VF for receive
532 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
533 struct net_device *dev = adapter->netdev;
534 int pf_max_frame = dev->mtu + ETH_HLEN;
535 u32 reg_offset, vf_shift, vfre;
539 if (dev->features & NETIF_F_FCOE_MTU)
540 pf_max_frame = max_t(int, pf_max_frame,
541 IXGBE_FCOE_JUMBO_FRAME_SIZE);
543 #endif /* CONFIG_FCOE */
544 switch (adapter->vfinfo[vf].vf_api) {
545 case ixgbe_mbox_api_11:
546 case ixgbe_mbox_api_12:
547 case ixgbe_mbox_api_13:
548 /* Version 1.1 supports jumbo frames on VFs if PF has
549 * jumbo frames enabled which means legacy VFs are
552 if (pf_max_frame > ETH_FRAME_LEN)
556 /* If the PF or VF are running w/ jumbo frames enabled
557 * we need to shut down the VF Rx path as we cannot
558 * support jumbo frames on legacy VFs
560 if ((pf_max_frame > ETH_FRAME_LEN) ||
561 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
566 /* determine VF receive enable location */
568 reg_offset = vf / 32;
570 /* enable or disable receive depending on error */
571 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
573 vfre &= ~BIT(vf_shift);
575 vfre |= BIT(vf_shift);
576 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
579 e_err(drv, "VF max_frame %d out of range\n", max_frame);
584 /* pull current max frame size from hardware */
585 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
586 max_frs &= IXGBE_MHADD_MFS_MASK;
587 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
589 if (max_frs < max_frame) {
590 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
591 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
594 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
599 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
601 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
602 vmolr |= IXGBE_VMOLR_BAM;
604 vmolr |= IXGBE_VMOLR_AUPE;
606 vmolr &= ~IXGBE_VMOLR_AUPE;
607 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
610 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
612 struct ixgbe_hw *hw = &adapter->hw;
614 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
617 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
619 struct ixgbe_hw *hw = &adapter->hw;
620 u32 vlvfb_mask, pool_mask, i;
622 /* create mask for VF and other pools */
623 pool_mask = ~BIT(VMDQ_P(0) % 32);
624 vlvfb_mask = BIT(vf % 32);
626 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
627 for (i = IXGBE_VLVF_ENTRIES; i--;) {
628 u32 bits[2], vlvfb, vid, vfta, vlvf;
629 u32 word = i * 2 + vf / 32;
632 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
634 /* if our bit isn't set we can skip it */
635 if (!(vlvfb & vlvfb_mask))
638 /* clear our bit from vlvfb */
641 /* create 64b mask to chedk to see if we should clear VLVF */
642 bits[word % 2] = vlvfb;
643 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
645 /* if other pools are present, just remove ourselves */
646 if (bits[(VMDQ_P(0) / 32) ^ 1] ||
647 (bits[VMDQ_P(0) / 32] & pool_mask))
650 /* if PF is present, leave VFTA */
651 if (bits[0] || bits[1])
654 /* if we cannot determine VLAN just remove ourselves */
655 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
659 vid = vlvf & VLAN_VID_MASK;
660 mask = BIT(vid % 32);
662 /* clear bit from VFTA */
663 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
665 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
667 /* clear POOL selection enable */
668 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
670 if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
673 /* clear pool bits */
674 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
678 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
679 int vf, int index, unsigned char *mac_addr)
681 struct vf_macvlans *entry;
682 struct list_head *pos;
686 list_for_each(pos, &adapter->vf_mvs.l) {
687 entry = list_entry(pos, struct vf_macvlans, l);
688 if (entry->vf == vf) {
691 entry->is_macvlan = false;
692 ixgbe_del_mac_filter(adapter,
693 entry->vf_macvlan, vf);
699 * If index was zero then we were asked to clear the uc list
700 * for the VF. We're done.
707 list_for_each(pos, &adapter->vf_mvs.l) {
708 entry = list_entry(pos, struct vf_macvlans, l);
714 * If we traversed the entire list and didn't find a free entry
715 * then we're out of space on the RAR table. Also entry may
716 * be NULL because the original memory allocation for the list
717 * failed, which is not fatal but does mean we can't support
718 * VF requests for MACVLAN because we couldn't allocate
719 * memory for the list management required.
721 if (!entry || !entry->free)
724 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
729 entry->is_macvlan = true;
731 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
736 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
738 struct ixgbe_hw *hw = &adapter->hw;
739 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
740 u8 num_tcs = netdev_get_num_tc(adapter->netdev);
742 /* remove VLAN filters beloning to this VF */
743 ixgbe_clear_vf_vlans(adapter, vf);
745 /* add back PF assigned VLAN or VLAN 0 */
746 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
748 /* reset offloads to defaults */
749 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
751 /* set outgoing tags for VFs */
752 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
753 ixgbe_clear_vmvir(adapter, vf);
755 if (vfinfo->pf_qos || !num_tcs)
756 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
759 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
760 adapter->default_up, vf);
762 if (vfinfo->spoofchk_enabled) {
763 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
764 hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
768 /* reset multicast table array for vf */
769 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
771 /* Flush and reset the mta with the new values */
772 ixgbe_set_rx_mode(adapter->netdev);
774 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
775 ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
777 /* reset VF api back to unknown */
778 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
781 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
782 int vf, unsigned char *mac_addr)
786 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
787 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
789 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
792 memset(adapter->vfinfo[vf].vf_mac_addresses, 0, ETH_ALEN);
797 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
799 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
800 unsigned int vfn = (event_mask & 0x3f);
802 bool enable = ((event_mask & 0x10000000U) != 0);
805 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
810 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
813 struct ixgbe_hw *hw = &adapter->hw;
814 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
815 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
818 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
821 /* flush previous write */
822 IXGBE_WRITE_FLUSH(hw);
824 /* indicate to hardware that we want to set drop enable */
825 reg = IXGBE_QDE_WRITE | qde;
826 reg |= i << IXGBE_QDE_IDX_SHIFT;
827 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
831 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
833 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
834 struct ixgbe_hw *hw = &adapter->hw;
835 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
836 u32 reg, reg_offset, vf_shift;
837 u32 msgbuf[4] = {0, 0, 0, 0};
838 u8 *addr = (u8 *)(&msgbuf[1]);
839 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
842 e_info(probe, "VF Reset msg received from vf %d\n", vf);
844 /* reset the filters for the device */
845 ixgbe_vf_reset_event(adapter, vf);
847 /* set vf mac address */
848 if (!is_zero_ether_addr(vf_mac))
849 ixgbe_set_vf_mac(adapter, vf, vf_mac);
852 reg_offset = vf / 32;
854 /* enable transmit for vf */
855 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
856 reg |= BIT(vf_shift);
857 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
859 /* force drop enable for all VF Rx queues */
860 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
862 /* enable receive for vf */
863 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
864 reg |= BIT(vf_shift);
866 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
867 * For more info take a look at ixgbe_set_vf_lpe
869 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
870 struct net_device *dev = adapter->netdev;
871 int pf_max_frame = dev->mtu + ETH_HLEN;
874 if (dev->features & NETIF_F_FCOE_MTU)
875 pf_max_frame = max_t(int, pf_max_frame,
876 IXGBE_FCOE_JUMBO_FRAME_SIZE);
878 #endif /* CONFIG_FCOE */
879 if (pf_max_frame > ETH_FRAME_LEN)
880 reg &= ~BIT(vf_shift);
882 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
884 /* enable VF mailbox for further messages */
885 adapter->vfinfo[vf].clear_to_send = true;
887 /* Enable counting of spoofed packets in the SSVPC register */
888 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
889 reg |= BIT(vf_shift);
890 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
893 * Reset the VFs TDWBAL and TDWBAH registers
894 * which are not cleared by an FLR
896 for (i = 0; i < q_per_pool; i++) {
897 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
898 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
901 /* reply to reset with ack and vf mac address */
902 msgbuf[0] = IXGBE_VF_RESET;
903 if (!is_zero_ether_addr(vf_mac)) {
904 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
905 memcpy(addr, vf_mac, ETH_ALEN);
907 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
908 dev_warn(&adapter->pdev->dev,
909 "VF %d has no MAC address assigned, you may have to assign one manually\n",
914 * Piggyback the multicast filter type so VF can compute the
917 msgbuf[3] = hw->mac.mc_filter_type;
918 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
923 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
926 u8 *new_mac = ((u8 *)(&msgbuf[1]));
928 if (!is_valid_ether_addr(new_mac)) {
929 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
933 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
934 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
936 "VF %d attempted to override administratively set MAC address\n"
937 "Reload the VF driver to resume operations\n",
942 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
945 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
948 u32 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
949 u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
950 u8 tcs = netdev_get_num_tc(adapter->netdev);
952 if (adapter->vfinfo[vf].pf_vlan || tcs) {
954 "VF %d attempted to override administratively set VLAN configuration\n"
955 "Reload the VF driver to resume operations\n",
960 /* VLAN 0 is a special case, don't allow it to be removed */
964 return ixgbe_set_vf_vlan(adapter, add, vid, vf);
967 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
970 u8 *new_mac = ((u8 *)(&msgbuf[1]));
971 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
972 IXGBE_VT_MSGINFO_SHIFT;
975 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
978 "VF %d requested MACVLAN filter but is administratively denied\n",
983 /* An non-zero index indicates the VF is setting a filter */
985 if (!is_valid_ether_addr(new_mac)) {
986 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
991 * If the VF is allowed to set MAC filters then turn off
992 * anti-spoofing to avoid false positives.
994 if (adapter->vfinfo[vf].spoofchk_enabled) {
995 struct ixgbe_hw *hw = &adapter->hw;
997 hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
998 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1002 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
1005 "VF %d has requested a MACVLAN filter but there is no space for it\n",
1011 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
1012 u32 *msgbuf, u32 vf)
1014 int api = msgbuf[1];
1017 case ixgbe_mbox_api_10:
1018 case ixgbe_mbox_api_11:
1019 case ixgbe_mbox_api_12:
1020 case ixgbe_mbox_api_13:
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 = netdev_get_num_tc(dev);
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:
1051 /* only allow 1 Tx queue for bandwidth limiting */
1052 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1053 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1055 /* if TCs > 1 determine which TC belongs to default user priority */
1057 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1059 /* notify VF of need for VLAN tag stripping, and correct queue */
1061 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1062 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1063 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1065 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1067 /* notify VF of default queue */
1068 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1073 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1076 u32 *out_buf = &msgbuf[1];
1077 const u8 *reta = adapter->rss_indir_tbl;
1078 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1080 /* Check if operation is permitted */
1081 if (!adapter->vfinfo[vf].rss_query_enabled)
1084 /* verify the PF is supporting the correct API */
1085 switch (adapter->vfinfo[vf].vf_api) {
1086 case ixgbe_mbox_api_13:
1087 case ixgbe_mbox_api_12:
1093 /* This mailbox command is supported (required) only for 82599 and x540
1094 * VFs which support up to 4 RSS queues. Therefore we will compress the
1095 * RETA by saving only 2 bits from each entry. This way we will be able
1096 * to transfer the whole RETA in a single mailbox operation.
1098 for (i = 0; i < reta_size / 16; i++) {
1100 for (j = 0; j < 16; j++)
1101 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1107 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1108 u32 *msgbuf, u32 vf)
1110 u32 *rss_key = &msgbuf[1];
1112 /* Check if the operation is permitted */
1113 if (!adapter->vfinfo[vf].rss_query_enabled)
1116 /* verify the PF is supporting the correct API */
1117 switch (adapter->vfinfo[vf].vf_api) {
1118 case ixgbe_mbox_api_13:
1119 case ixgbe_mbox_api_12:
1125 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1130 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1131 u32 *msgbuf, u32 vf)
1133 struct ixgbe_hw *hw = &adapter->hw;
1134 int xcast_mode = msgbuf[1];
1135 u32 vmolr, fctrl, disable, enable;
1137 /* verify the PF is supporting the correct APIs */
1138 switch (adapter->vfinfo[vf].vf_api) {
1139 case ixgbe_mbox_api_12:
1140 /* promisc introduced in 1.3 version */
1141 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1144 case ixgbe_mbox_api_13:
1150 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1151 !adapter->vfinfo[vf].trusted) {
1152 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1155 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1158 switch (xcast_mode) {
1159 case IXGBEVF_XCAST_MODE_NONE:
1160 disable = IXGBE_VMOLR_ROMPE |
1161 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1162 enable = IXGBE_VMOLR_BAM;
1164 case IXGBEVF_XCAST_MODE_MULTI:
1165 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1166 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1168 case IXGBEVF_XCAST_MODE_ALLMULTI:
1169 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1170 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1172 case IXGBEVF_XCAST_MODE_PROMISC:
1173 if (hw->mac.type <= ixgbe_mac_82599EB)
1176 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1177 if (!(fctrl & IXGBE_FCTRL_UPE)) {
1178 /* VF promisc requires PF in promisc */
1180 "Enabling VF promisc requires PF in promisc\n");
1184 disable = IXGBE_VMOLR_VPE;
1185 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1186 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1192 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1195 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1197 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1200 msgbuf[1] = xcast_mode;
1205 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1207 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1208 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1209 struct ixgbe_hw *hw = &adapter->hw;
1212 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1215 pr_err("Error receiving message from VF\n");
1219 /* this is a message we already processed, do nothing */
1220 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1223 /* flush the ack before we write any messages back */
1224 IXGBE_WRITE_FLUSH(hw);
1226 if (msgbuf[0] == IXGBE_VF_RESET)
1227 return ixgbe_vf_reset_msg(adapter, vf);
1230 * until the vf completes a virtual function reset it should not be
1231 * allowed to start any configuration.
1233 if (!adapter->vfinfo[vf].clear_to_send) {
1234 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1235 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1239 switch ((msgbuf[0] & 0xFFFF)) {
1240 case IXGBE_VF_SET_MAC_ADDR:
1241 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1243 case IXGBE_VF_SET_MULTICAST:
1244 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1246 case IXGBE_VF_SET_VLAN:
1247 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1249 case IXGBE_VF_SET_LPE:
1250 retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1252 case IXGBE_VF_SET_MACVLAN:
1253 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1255 case IXGBE_VF_API_NEGOTIATE:
1256 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1258 case IXGBE_VF_GET_QUEUES:
1259 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1261 case IXGBE_VF_GET_RETA:
1262 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1264 case IXGBE_VF_GET_RSS_KEY:
1265 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1267 case IXGBE_VF_UPDATE_XCAST_MODE:
1268 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1271 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1272 retval = IXGBE_ERR_MBX;
1276 /* notify the VF of the results of what it sent us */
1278 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1280 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1282 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1284 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1289 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1291 struct ixgbe_hw *hw = &adapter->hw;
1292 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1294 /* if device isn't clear to send it shouldn't be reading either */
1295 if (!adapter->vfinfo[vf].clear_to_send)
1296 ixgbe_write_mbx(hw, &msg, 1, vf);
1299 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1301 struct ixgbe_hw *hw = &adapter->hw;
1304 for (vf = 0; vf < adapter->num_vfs; vf++) {
1305 /* process any reset requests */
1306 if (!ixgbe_check_for_rst(hw, vf))
1307 ixgbe_vf_reset_event(adapter, vf);
1309 /* process any messages pending */
1310 if (!ixgbe_check_for_msg(hw, vf))
1311 ixgbe_rcv_msg_from_vf(adapter, vf);
1313 /* process any acks */
1314 if (!ixgbe_check_for_ack(hw, vf))
1315 ixgbe_rcv_ack_from_vf(adapter, vf);
1319 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
1321 struct ixgbe_hw *hw = &adapter->hw;
1323 /* disable transmit and receive for all vfs */
1324 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
1325 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
1327 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
1328 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
1331 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1333 struct ixgbe_hw *hw = &adapter->hw;
1336 ping = IXGBE_PF_CONTROL_MSG;
1337 if (adapter->vfinfo[vf].clear_to_send)
1338 ping |= IXGBE_VT_MSGTYPE_CTS;
1339 ixgbe_write_mbx(hw, &ping, 1, vf);
1342 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1344 struct ixgbe_hw *hw = &adapter->hw;
1348 for (i = 0 ; i < adapter->num_vfs; i++) {
1349 ping = IXGBE_PF_CONTROL_MSG;
1350 if (adapter->vfinfo[i].clear_to_send)
1351 ping |= IXGBE_VT_MSGTYPE_CTS;
1352 ixgbe_write_mbx(hw, &ping, 1, i);
1356 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1358 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1361 if (vf >= adapter->num_vfs)
1364 if (is_valid_ether_addr(mac)) {
1365 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1367 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1369 retval = ixgbe_set_vf_mac(adapter, vf, mac);
1371 adapter->vfinfo[vf].pf_set_mac = true;
1373 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1374 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1375 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1378 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1380 } else if (is_zero_ether_addr(mac)) {
1381 unsigned char *vf_mac_addr =
1382 adapter->vfinfo[vf].vf_mac_addresses;
1385 if (is_zero_ether_addr(vf_mac_addr))
1388 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1390 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1392 adapter->vfinfo[vf].pf_set_mac = false;
1393 memcpy(vf_mac_addr, mac, ETH_ALEN);
1395 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1404 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1407 struct ixgbe_hw *hw = &adapter->hw;
1410 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1414 /* Revoke tagless access via VLAN 0 */
1415 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1417 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1418 ixgbe_set_vmolr(hw, vf, false);
1420 /* enable hide vlan on X550 */
1421 if (hw->mac.type >= ixgbe_mac_X550)
1422 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1423 IXGBE_QDE_HIDE_VLAN);
1425 adapter->vfinfo[vf].pf_vlan = vlan;
1426 adapter->vfinfo[vf].pf_qos = qos;
1427 dev_info(&adapter->pdev->dev,
1428 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1429 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1430 dev_warn(&adapter->pdev->dev,
1431 "The VF VLAN has been set, but the PF device is not up.\n");
1432 dev_warn(&adapter->pdev->dev,
1433 "Bring the PF device up before attempting to use the VF device.\n");
1440 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1442 struct ixgbe_hw *hw = &adapter->hw;
1445 err = ixgbe_set_vf_vlan(adapter, false,
1446 adapter->vfinfo[vf].pf_vlan, vf);
1447 /* Restore tagless access via VLAN 0 */
1448 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1449 ixgbe_clear_vmvir(adapter, vf);
1450 ixgbe_set_vmolr(hw, vf, true);
1452 /* disable hide VLAN on X550 */
1453 if (hw->mac.type >= ixgbe_mac_X550)
1454 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1456 adapter->vfinfo[vf].pf_vlan = 0;
1457 adapter->vfinfo[vf].pf_qos = 0;
1462 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1463 u8 qos, __be16 vlan_proto)
1466 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1468 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1470 if (vlan_proto != htons(ETH_P_8021Q))
1471 return -EPROTONOSUPPORT;
1473 /* Check if there is already a port VLAN set, if so
1474 * we have to delete the old one first before we
1475 * can set the new one. The usage model had
1476 * previously assumed the user would delete the
1477 * old port VLAN before setting a new one but this
1478 * is not necessarily the case.
1480 if (adapter->vfinfo[vf].pf_vlan)
1481 err = ixgbe_disable_port_vlan(adapter, vf);
1484 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1486 err = ixgbe_disable_port_vlan(adapter, vf);
1493 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1495 switch (adapter->link_speed) {
1496 case IXGBE_LINK_SPEED_100_FULL:
1498 case IXGBE_LINK_SPEED_1GB_FULL:
1500 case IXGBE_LINK_SPEED_10GB_FULL:
1507 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1509 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1510 struct ixgbe_hw *hw = &adapter->hw;
1512 u16 queue, queues_per_pool;
1513 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1516 /* start with base link speed value */
1517 bcnrc_val = adapter->vf_rate_link_speed;
1519 /* Calculate the rate factor values to set */
1520 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1521 bcnrc_val /= tx_rate;
1523 /* clear everything but the rate factor */
1524 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1525 IXGBE_RTTBCNRC_RF_DEC_MASK;
1527 /* enable the rate scheduler */
1528 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1532 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1533 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1534 * and 0x004 otherwise.
1536 switch (hw->mac.type) {
1537 case ixgbe_mac_82599EB:
1538 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1540 case ixgbe_mac_X540:
1541 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1547 /* determine how many queues per pool based on VMDq mask */
1548 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1550 /* write value for all Tx queues belonging to VF */
1551 for (queue = 0; queue < queues_per_pool; queue++) {
1552 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1554 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1555 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1559 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1563 /* VF Tx rate limit was not set */
1564 if (!adapter->vf_rate_link_speed)
1567 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1568 adapter->vf_rate_link_speed = 0;
1569 dev_info(&adapter->pdev->dev,
1570 "Link speed has been changed. VF Transmit rate is disabled\n");
1573 for (i = 0; i < adapter->num_vfs; i++) {
1574 if (!adapter->vf_rate_link_speed)
1575 adapter->vfinfo[i].tx_rate = 0;
1577 ixgbe_set_vf_rate_limit(adapter, i);
1581 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1584 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1587 /* verify VF is active */
1588 if (vf >= adapter->num_vfs)
1591 /* verify link is up */
1592 if (!adapter->link_up)
1595 /* verify we are linked at 10Gbps */
1596 link_speed = ixgbe_link_mbps(adapter);
1597 if (link_speed != 10000)
1603 /* rate limit cannot be less than 10Mbs or greater than link speed */
1604 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1608 adapter->vf_rate_link_speed = link_speed;
1609 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1611 /* update hardware configuration */
1612 ixgbe_set_vf_rate_limit(adapter, vf);
1617 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1619 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1620 struct ixgbe_hw *hw = &adapter->hw;
1622 if (vf >= adapter->num_vfs)
1625 adapter->vfinfo[vf].spoofchk_enabled = setting;
1627 /* configure MAC spoofing */
1628 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1630 /* configure VLAN spoofing */
1631 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1633 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1634 * calling set_ethertype_anti_spoofing for each VF in loop below
1636 if (hw->mac.ops.set_ethertype_anti_spoofing) {
1637 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1638 (IXGBE_ETQF_FILTER_EN |
1639 IXGBE_ETQF_TX_ANTISPOOF |
1642 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1643 (IXGBE_ETQF_FILTER_EN |
1644 IXGBE_ETQF_TX_ANTISPOOF |
1647 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1653 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1656 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1658 /* This operation is currently supported only for 82599 and x540
1661 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1662 adapter->hw.mac.type >= ixgbe_mac_X550)
1665 if (vf >= adapter->num_vfs)
1668 adapter->vfinfo[vf].rss_query_enabled = setting;
1673 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1675 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1677 if (vf >= adapter->num_vfs)
1681 if (adapter->vfinfo[vf].trusted == setting)
1684 adapter->vfinfo[vf].trusted = setting;
1686 /* reset VF to reconfigure features */
1687 adapter->vfinfo[vf].clear_to_send = false;
1688 ixgbe_ping_vf(adapter, vf);
1690 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1695 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1696 int vf, struct ifla_vf_info *ivi)
1698 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1699 if (vf >= adapter->num_vfs)
1702 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1703 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1704 ivi->min_tx_rate = 0;
1705 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1706 ivi->qos = adapter->vfinfo[vf].pf_qos;
1707 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1708 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1709 ivi->trusted = adapter->vfinfo[vf].trusted;