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 num_vf_macvlans = hw->mac.num_rar_entries -
57 (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
61 mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
64 /* Initialize list of VF macvlans */
65 INIT_LIST_HEAD(&adapter->vf_mvs.l);
66 for (i = 0; i < num_vf_macvlans; i++) {
68 mv_list[i].free = true;
69 list_add(&mv_list[i].l, &adapter->vf_mvs.l);
71 adapter->mv_list = mv_list;
75 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
78 struct ixgbe_hw *hw = &adapter->hw;
81 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
83 /* Enable VMDq flag so device will be set in VM mode */
84 adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED;
85 if (!adapter->ring_feature[RING_F_VMDQ].limit)
86 adapter->ring_feature[RING_F_VMDQ].limit = 1;
88 /* Allocate memory for per VF control structures */
89 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
94 adapter->num_vfs = num_vfs;
96 ixgbe_alloc_vf_macvlans(adapter, num_vfs);
97 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
99 /* Initialize default switching mode VEB */
100 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
101 adapter->bridge_mode = BRIDGE_MODE_VEB;
103 /* limit trafffic classes based on VFs enabled */
104 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
105 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
106 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
107 } else if (num_vfs < 32) {
108 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
109 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
111 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
112 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
115 /* Disable RSC when in SR-IOV mode */
116 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
117 IXGBE_FLAG2_RSC_ENABLED);
119 for (i = 0; i < num_vfs; i++) {
120 /* enable spoof checking for all VFs */
121 adapter->vfinfo[i].spoofchk_enabled = true;
123 /* We support VF RSS querying only for 82599 and x540
124 * devices at the moment. These devices share RSS
125 * indirection table and RSS hash key with PF therefore
126 * we want to disable the querying by default.
128 adapter->vfinfo[i].rss_query_enabled = 0;
130 /* Untrust all VFs */
131 adapter->vfinfo[i].trusted = false;
133 /* set the default xcast mode */
134 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
137 e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
142 * ixgbe_get_vfs - Find and take references to all vf devices
143 * @adapter: Pointer to adapter struct
145 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
147 struct pci_dev *pdev = adapter->pdev;
148 u16 vendor = pdev->vendor;
149 struct pci_dev *vfdev;
154 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
157 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
159 vfdev = pci_get_device(vendor, vf_id, NULL);
160 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
161 if (!vfdev->is_virtfn)
163 if (vfdev->physfn != pdev)
165 if (vf >= adapter->num_vfs)
168 adapter->vfinfo[vf].vfdev = vfdev;
173 /* Note this function is called when the user wants to enable SR-IOV
174 * VFs using the now deprecated module parameter
176 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
178 int pre_existing_vfs = 0;
179 unsigned int num_vfs;
181 pre_existing_vfs = pci_num_vf(adapter->pdev);
182 if (!pre_existing_vfs && !max_vfs)
185 /* If there are pre-existing VFs then we have to force
186 * use of that many - over ride any module parameter value.
187 * This may result from the user unloading the PF driver
188 * while VFs were assigned to guest VMs or because the VFs
189 * have been created via the new PCI SR-IOV sysfs interface.
191 if (pre_existing_vfs) {
192 num_vfs = pre_existing_vfs;
193 dev_warn(&adapter->pdev->dev,
194 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
198 * The 82599 supports up to 64 VFs per physical function
199 * but this implementation limits allocation to 63 so that
200 * basic networking resources are still available to the
201 * physical function. If the user requests greater than
202 * 63 VFs then it is an error - reset to default of zero.
204 num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
206 err = pci_enable_sriov(adapter->pdev, num_vfs);
208 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
213 if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
214 ixgbe_get_vfs(adapter);
218 /* If we have gotten to this point then there is no memory available
219 * to manage the VF devices - print message and bail.
221 e_err(probe, "Unable to allocate memory for VF Data Storage - "
223 ixgbe_disable_sriov(adapter);
226 #endif /* #ifdef CONFIG_PCI_IOV */
227 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
229 unsigned int num_vfs = adapter->num_vfs, vf;
230 struct ixgbe_hw *hw = &adapter->hw;
235 /* set num VFs to 0 to prevent access to vfinfo */
236 adapter->num_vfs = 0;
238 /* put the reference to all of the vf devices */
239 for (vf = 0; vf < num_vfs; ++vf) {
240 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
244 adapter->vfinfo[vf].vfdev = NULL;
248 /* free VF control structures */
249 kfree(adapter->vfinfo);
250 adapter->vfinfo = NULL;
252 /* free macvlan list */
253 kfree(adapter->mv_list);
254 adapter->mv_list = NULL;
256 /* if SR-IOV is already disabled then there is nothing to do */
257 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
260 #ifdef CONFIG_PCI_IOV
262 * If our VFs are assigned we cannot shut down SR-IOV
263 * without causing issues, so just leave the hardware
264 * available but disabled
266 if (pci_vfs_assigned(adapter->pdev)) {
267 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
270 /* disable iov and allow time for transactions to clear */
271 pci_disable_sriov(adapter->pdev);
274 /* turn off device IOV mode */
275 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0);
276 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
277 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
278 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
280 /* set default pool back to 0 */
281 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
282 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
283 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
284 IXGBE_WRITE_FLUSH(hw);
286 /* Disable VMDq flag so device will be set in VM mode */
287 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) {
288 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
289 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
290 rss = min_t(int, ixgbe_max_rss_indices(adapter),
293 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
296 adapter->ring_feature[RING_F_VMDQ].offset = 0;
297 adapter->ring_feature[RING_F_RSS].limit = rss;
299 /* take a breather then clean up driver data */
304 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
306 #ifdef CONFIG_PCI_IOV
307 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
311 int pre_existing_vfs = pci_num_vf(dev);
313 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
314 err = ixgbe_disable_sriov(adapter);
315 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
321 /* While the SR-IOV capability structure reports total VFs to be 64,
322 * we limit the actual number allocated as below based on two factors.
327 * First, we reserve some transmit/receive resources for the PF.
328 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
329 * account for this, so that we don't accidentally allocate more VFs
330 * than we have available pools. The PCI bus driver already checks for
331 * other values out of range.
333 num_tc = netdev_get_num_tc(adapter->netdev);
336 if ((num_vfs + adapter->num_rx_pools) > IXGBE_MAX_VFS_8TC) {
337 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);
340 } else if ((num_tc > 1) && (num_tc <= 4)) {
341 if ((num_vfs + adapter->num_rx_pools) > IXGBE_MAX_VFS_4TC) {
342 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);
346 if ((num_vfs + adapter->num_rx_pools) > IXGBE_MAX_VFS_1TC) {
347 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);
352 err = __ixgbe_enable_sriov(adapter, num_vfs);
356 for (i = 0; i < num_vfs; i++)
357 ixgbe_vf_configuration(dev, (i | 0x10000000));
359 /* reset before enabling SRIOV to avoid mailbox issues */
360 ixgbe_sriov_reinit(adapter);
362 err = pci_enable_sriov(dev, num_vfs);
364 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
367 ixgbe_get_vfs(adapter);
375 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
377 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
379 #ifdef CONFIG_PCI_IOV
380 u32 current_flags = adapter->flags;
383 err = ixgbe_disable_sriov(adapter);
385 /* Only reinit if no error and state changed */
386 #ifdef CONFIG_PCI_IOV
387 if (!err && current_flags != adapter->flags)
388 ixgbe_sriov_reinit(adapter);
394 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
397 return ixgbe_pci_sriov_disable(dev);
399 return ixgbe_pci_sriov_enable(dev, num_vfs);
402 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
405 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
406 >> IXGBE_VT_MSGINFO_SHIFT;
407 u16 *hash_list = (u16 *)&msgbuf[1];
408 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
409 struct ixgbe_hw *hw = &adapter->hw;
414 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
416 /* only so many hash values supported */
417 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
420 * salt away the number of multi cast addresses assigned
421 * to this VF for later use to restore when the PF multi cast
424 vfinfo->num_vf_mc_hashes = entries;
427 * VFs are limited to using the MTA hash table for their multicast
430 for (i = 0; i < entries; i++) {
431 vfinfo->vf_mc_hashes[i] = hash_list[i];
434 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
435 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
436 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
437 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
438 mta_reg |= BIT(vector_bit);
439 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
441 vmolr |= IXGBE_VMOLR_ROMPE;
442 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
447 #ifdef CONFIG_PCI_IOV
448 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
450 struct ixgbe_hw *hw = &adapter->hw;
451 struct vf_data_storage *vfinfo;
457 for (i = 0; i < adapter->num_vfs; i++) {
458 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
459 vfinfo = &adapter->vfinfo[i];
460 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
461 hw->addr_ctrl.mta_in_use++;
462 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
463 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
464 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
465 mta_reg |= BIT(vector_bit);
466 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
469 if (vfinfo->num_vf_mc_hashes)
470 vmolr |= IXGBE_VMOLR_ROMPE;
472 vmolr &= ~IXGBE_VMOLR_ROMPE;
473 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
476 /* Restore any VF macvlans */
477 ixgbe_full_sync_mac_table(adapter);
481 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
484 struct ixgbe_hw *hw = &adapter->hw;
487 /* If VLAN overlaps with one the PF is currently monitoring make
488 * sure that we are able to allocate a VLVF entry. This may be
489 * redundant but it guarantees PF will maintain visibility to
492 if (add && test_bit(vid, adapter->active_vlans)) {
493 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
498 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
503 /* If we failed to add the VF VLAN or we are removing the VF VLAN
504 * we may need to drop the PF pool bit in order to allow us to free
505 * up the VLVF resources.
507 if (test_bit(vid, adapter->active_vlans) ||
508 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
509 ixgbe_update_pf_promisc_vlvf(adapter, vid);
514 static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
516 struct ixgbe_hw *hw = &adapter->hw;
519 if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
520 e_err(drv, "VF max_frame %d out of range\n", max_frame);
525 * For 82599EB we have to keep all PFs and VFs operating with
526 * the same max_frame value in order to avoid sending an oversize
527 * frame to a VF. In order to guarantee this is handled correctly
528 * for all cases we have several special exceptions to take into
529 * account before we can enable the VF for receive
531 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
532 struct net_device *dev = adapter->netdev;
533 int pf_max_frame = dev->mtu + ETH_HLEN;
534 u32 reg_offset, vf_shift, vfre;
538 if (dev->features & NETIF_F_FCOE_MTU)
539 pf_max_frame = max_t(int, pf_max_frame,
540 IXGBE_FCOE_JUMBO_FRAME_SIZE);
542 #endif /* CONFIG_FCOE */
543 switch (adapter->vfinfo[vf].vf_api) {
544 case ixgbe_mbox_api_11:
545 case ixgbe_mbox_api_12:
546 case ixgbe_mbox_api_13:
547 /* Version 1.1 supports jumbo frames on VFs if PF has
548 * jumbo frames enabled which means legacy VFs are
551 if (pf_max_frame > ETH_FRAME_LEN)
555 /* If the PF or VF are running w/ jumbo frames enabled
556 * we need to shut down the VF Rx path as we cannot
557 * support jumbo frames on legacy VFs
559 if ((pf_max_frame > ETH_FRAME_LEN) ||
560 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
565 /* determine VF receive enable location */
567 reg_offset = vf / 32;
569 /* enable or disable receive depending on error */
570 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
572 vfre &= ~BIT(vf_shift);
574 vfre |= BIT(vf_shift);
575 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
578 e_err(drv, "VF max_frame %d out of range\n", max_frame);
583 /* pull current max frame size from hardware */
584 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
585 max_frs &= IXGBE_MHADD_MFS_MASK;
586 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
588 if (max_frs < max_frame) {
589 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
590 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
593 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
598 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
600 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
601 vmolr |= IXGBE_VMOLR_BAM;
603 vmolr |= IXGBE_VMOLR_AUPE;
605 vmolr &= ~IXGBE_VMOLR_AUPE;
606 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
609 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
611 struct ixgbe_hw *hw = &adapter->hw;
613 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
616 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
618 struct ixgbe_hw *hw = &adapter->hw;
619 u32 vlvfb_mask, pool_mask, i;
621 /* create mask for VF and other pools */
622 pool_mask = ~BIT(VMDQ_P(0) % 32);
623 vlvfb_mask = BIT(vf % 32);
625 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
626 for (i = IXGBE_VLVF_ENTRIES; i--;) {
627 u32 bits[2], vlvfb, vid, vfta, vlvf;
628 u32 word = i * 2 + vf / 32;
631 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
633 /* if our bit isn't set we can skip it */
634 if (!(vlvfb & vlvfb_mask))
637 /* clear our bit from vlvfb */
640 /* create 64b mask to chedk to see if we should clear VLVF */
641 bits[word % 2] = vlvfb;
642 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
644 /* if other pools are present, just remove ourselves */
645 if (bits[(VMDQ_P(0) / 32) ^ 1] ||
646 (bits[VMDQ_P(0) / 32] & pool_mask))
649 /* if PF is present, leave VFTA */
650 if (bits[0] || bits[1])
653 /* if we cannot determine VLAN just remove ourselves */
654 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
658 vid = vlvf & VLAN_VID_MASK;
659 mask = BIT(vid % 32);
661 /* clear bit from VFTA */
662 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
664 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
666 /* clear POOL selection enable */
667 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
669 if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
672 /* clear pool bits */
673 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
677 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
678 int vf, int index, unsigned char *mac_addr)
680 struct vf_macvlans *entry;
681 struct list_head *pos;
685 list_for_each(pos, &adapter->vf_mvs.l) {
686 entry = list_entry(pos, struct vf_macvlans, l);
687 if (entry->vf == vf) {
690 entry->is_macvlan = false;
691 ixgbe_del_mac_filter(adapter,
692 entry->vf_macvlan, vf);
698 * If index was zero then we were asked to clear the uc list
699 * for the VF. We're done.
706 list_for_each(pos, &adapter->vf_mvs.l) {
707 entry = list_entry(pos, struct vf_macvlans, l);
713 * If we traversed the entire list and didn't find a free entry
714 * then we're out of space on the RAR table. Also entry may
715 * be NULL because the original memory allocation for the list
716 * failed, which is not fatal but does mean we can't support
717 * VF requests for MACVLAN because we couldn't allocate
718 * memory for the list management required.
720 if (!entry || !entry->free)
723 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
728 entry->is_macvlan = true;
730 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
735 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
737 struct ixgbe_hw *hw = &adapter->hw;
738 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
739 u8 num_tcs = netdev_get_num_tc(adapter->netdev);
741 /* remove VLAN filters beloning to this VF */
742 ixgbe_clear_vf_vlans(adapter, vf);
744 /* add back PF assigned VLAN or VLAN 0 */
745 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
747 /* reset offloads to defaults */
748 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
750 /* set outgoing tags for VFs */
751 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
752 ixgbe_clear_vmvir(adapter, vf);
754 if (vfinfo->pf_qos || !num_tcs)
755 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
758 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
759 adapter->default_up, vf);
761 if (vfinfo->spoofchk_enabled) {
762 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
763 hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
767 /* reset multicast table array for vf */
768 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
770 /* Flush and reset the mta with the new values */
771 ixgbe_set_rx_mode(adapter->netdev);
773 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
774 ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
776 /* reset VF api back to unknown */
777 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
780 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
781 int vf, unsigned char *mac_addr)
785 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
786 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
788 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
791 memset(adapter->vfinfo[vf].vf_mac_addresses, 0, ETH_ALEN);
796 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
798 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
799 unsigned int vfn = (event_mask & 0x3f);
801 bool enable = ((event_mask & 0x10000000U) != 0);
804 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
809 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
812 struct ixgbe_hw *hw = &adapter->hw;
813 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
814 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
817 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
820 /* flush previous write */
821 IXGBE_WRITE_FLUSH(hw);
823 /* indicate to hardware that we want to set drop enable */
824 reg = IXGBE_QDE_WRITE | qde;
825 reg |= i << IXGBE_QDE_IDX_SHIFT;
826 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
830 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
832 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
833 struct ixgbe_hw *hw = &adapter->hw;
834 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
835 u32 reg, reg_offset, vf_shift;
836 u32 msgbuf[4] = {0, 0, 0, 0};
837 u8 *addr = (u8 *)(&msgbuf[1]);
838 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
841 e_info(probe, "VF Reset msg received from vf %d\n", vf);
843 /* reset the filters for the device */
844 ixgbe_vf_reset_event(adapter, vf);
846 /* set vf mac address */
847 if (!is_zero_ether_addr(vf_mac))
848 ixgbe_set_vf_mac(adapter, vf, vf_mac);
851 reg_offset = vf / 32;
853 /* enable transmit for vf */
854 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
855 reg |= BIT(vf_shift);
856 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
858 /* force drop enable for all VF Rx queues */
859 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
861 /* enable receive for vf */
862 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
863 reg |= BIT(vf_shift);
865 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
866 * For more info take a look at ixgbe_set_vf_lpe
868 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
869 struct net_device *dev = adapter->netdev;
870 int pf_max_frame = dev->mtu + ETH_HLEN;
873 if (dev->features & NETIF_F_FCOE_MTU)
874 pf_max_frame = max_t(int, pf_max_frame,
875 IXGBE_FCOE_JUMBO_FRAME_SIZE);
877 #endif /* CONFIG_FCOE */
878 if (pf_max_frame > ETH_FRAME_LEN)
879 reg &= ~BIT(vf_shift);
881 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
883 /* enable VF mailbox for further messages */
884 adapter->vfinfo[vf].clear_to_send = true;
886 /* Enable counting of spoofed packets in the SSVPC register */
887 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
888 reg |= BIT(vf_shift);
889 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
892 * Reset the VFs TDWBAL and TDWBAH registers
893 * which are not cleared by an FLR
895 for (i = 0; i < q_per_pool; i++) {
896 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
897 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
900 /* reply to reset with ack and vf mac address */
901 msgbuf[0] = IXGBE_VF_RESET;
902 if (!is_zero_ether_addr(vf_mac)) {
903 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
904 memcpy(addr, vf_mac, ETH_ALEN);
906 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
907 dev_warn(&adapter->pdev->dev,
908 "VF %d has no MAC address assigned, you may have to assign one manually\n",
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 = netdev_get_num_tc(adapter->netdev);
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 adapter->vfinfo[vf].vf_api = api;
1026 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
1031 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1032 u32 *msgbuf, u32 vf)
1034 struct net_device *dev = adapter->netdev;
1035 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1036 unsigned int default_tc = 0;
1037 u8 num_tcs = netdev_get_num_tc(dev);
1039 /* verify the PF is supporting the correct APIs */
1040 switch (adapter->vfinfo[vf].vf_api) {
1041 case ixgbe_mbox_api_20:
1042 case ixgbe_mbox_api_11:
1043 case ixgbe_mbox_api_12:
1044 case ixgbe_mbox_api_13:
1050 /* only allow 1 Tx queue for bandwidth limiting */
1051 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1052 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1054 /* if TCs > 1 determine which TC belongs to default user priority */
1056 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1058 /* notify VF of need for VLAN tag stripping, and correct queue */
1060 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1061 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1062 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1064 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1066 /* notify VF of default queue */
1067 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1072 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1075 u32 *out_buf = &msgbuf[1];
1076 const u8 *reta = adapter->rss_indir_tbl;
1077 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1079 /* Check if operation is permitted */
1080 if (!adapter->vfinfo[vf].rss_query_enabled)
1083 /* verify the PF is supporting the correct API */
1084 switch (adapter->vfinfo[vf].vf_api) {
1085 case ixgbe_mbox_api_13:
1086 case ixgbe_mbox_api_12:
1092 /* This mailbox command is supported (required) only for 82599 and x540
1093 * VFs which support up to 4 RSS queues. Therefore we will compress the
1094 * RETA by saving only 2 bits from each entry. This way we will be able
1095 * to transfer the whole RETA in a single mailbox operation.
1097 for (i = 0; i < reta_size / 16; i++) {
1099 for (j = 0; j < 16; j++)
1100 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1106 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1107 u32 *msgbuf, u32 vf)
1109 u32 *rss_key = &msgbuf[1];
1111 /* Check if the operation is permitted */
1112 if (!adapter->vfinfo[vf].rss_query_enabled)
1115 /* verify the PF is supporting the correct API */
1116 switch (adapter->vfinfo[vf].vf_api) {
1117 case ixgbe_mbox_api_13:
1118 case ixgbe_mbox_api_12:
1124 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1129 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1130 u32 *msgbuf, u32 vf)
1132 struct ixgbe_hw *hw = &adapter->hw;
1133 int xcast_mode = msgbuf[1];
1134 u32 vmolr, fctrl, disable, enable;
1136 /* verify the PF is supporting the correct APIs */
1137 switch (adapter->vfinfo[vf].vf_api) {
1138 case ixgbe_mbox_api_12:
1139 /* promisc introduced in 1.3 version */
1140 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1143 case ixgbe_mbox_api_13:
1149 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1150 !adapter->vfinfo[vf].trusted) {
1151 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1154 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1157 switch (xcast_mode) {
1158 case IXGBEVF_XCAST_MODE_NONE:
1159 disable = IXGBE_VMOLR_ROMPE |
1160 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1161 enable = IXGBE_VMOLR_BAM;
1163 case IXGBEVF_XCAST_MODE_MULTI:
1164 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1165 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1167 case IXGBEVF_XCAST_MODE_ALLMULTI:
1168 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1169 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1171 case IXGBEVF_XCAST_MODE_PROMISC:
1172 if (hw->mac.type <= ixgbe_mac_82599EB)
1175 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1176 if (!(fctrl & IXGBE_FCTRL_UPE)) {
1177 /* VF promisc requires PF in promisc */
1179 "Enabling VF promisc requires PF in promisc\n");
1183 disable = IXGBE_VMOLR_VPE;
1184 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1185 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1191 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1194 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1196 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1199 msgbuf[1] = xcast_mode;
1204 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1206 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1207 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1208 struct ixgbe_hw *hw = &adapter->hw;
1211 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1214 pr_err("Error receiving message from VF\n");
1218 /* this is a message we already processed, do nothing */
1219 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1222 /* flush the ack before we write any messages back */
1223 IXGBE_WRITE_FLUSH(hw);
1225 if (msgbuf[0] == IXGBE_VF_RESET)
1226 return ixgbe_vf_reset_msg(adapter, vf);
1229 * until the vf completes a virtual function reset it should not be
1230 * allowed to start any configuration.
1232 if (!adapter->vfinfo[vf].clear_to_send) {
1233 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1234 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1238 switch ((msgbuf[0] & 0xFFFF)) {
1239 case IXGBE_VF_SET_MAC_ADDR:
1240 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1242 case IXGBE_VF_SET_MULTICAST:
1243 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1245 case IXGBE_VF_SET_VLAN:
1246 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1248 case IXGBE_VF_SET_LPE:
1249 retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1251 case IXGBE_VF_SET_MACVLAN:
1252 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1254 case IXGBE_VF_API_NEGOTIATE:
1255 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1257 case IXGBE_VF_GET_QUEUES:
1258 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1260 case IXGBE_VF_GET_RETA:
1261 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1263 case IXGBE_VF_GET_RSS_KEY:
1264 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1266 case IXGBE_VF_UPDATE_XCAST_MODE:
1267 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1270 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1271 retval = IXGBE_ERR_MBX;
1275 /* notify the VF of the results of what it sent us */
1277 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1279 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1281 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1283 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1288 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1290 struct ixgbe_hw *hw = &adapter->hw;
1291 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1293 /* if device isn't clear to send it shouldn't be reading either */
1294 if (!adapter->vfinfo[vf].clear_to_send)
1295 ixgbe_write_mbx(hw, &msg, 1, vf);
1298 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1300 struct ixgbe_hw *hw = &adapter->hw;
1303 for (vf = 0; vf < adapter->num_vfs; vf++) {
1304 /* process any reset requests */
1305 if (!ixgbe_check_for_rst(hw, vf))
1306 ixgbe_vf_reset_event(adapter, vf);
1308 /* process any messages pending */
1309 if (!ixgbe_check_for_msg(hw, vf))
1310 ixgbe_rcv_msg_from_vf(adapter, vf);
1312 /* process any acks */
1313 if (!ixgbe_check_for_ack(hw, vf))
1314 ixgbe_rcv_ack_from_vf(adapter, vf);
1318 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
1320 struct ixgbe_hw *hw = &adapter->hw;
1322 /* disable transmit and receive for all vfs */
1323 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
1324 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
1326 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
1327 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
1330 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1332 struct ixgbe_hw *hw = &adapter->hw;
1335 ping = IXGBE_PF_CONTROL_MSG;
1336 if (adapter->vfinfo[vf].clear_to_send)
1337 ping |= IXGBE_VT_MSGTYPE_CTS;
1338 ixgbe_write_mbx(hw, &ping, 1, vf);
1341 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1343 struct ixgbe_hw *hw = &adapter->hw;
1347 for (i = 0 ; i < adapter->num_vfs; i++) {
1348 ping = IXGBE_PF_CONTROL_MSG;
1349 if (adapter->vfinfo[i].clear_to_send)
1350 ping |= IXGBE_VT_MSGTYPE_CTS;
1351 ixgbe_write_mbx(hw, &ping, 1, i);
1355 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1357 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1360 if (vf >= adapter->num_vfs)
1363 if (is_valid_ether_addr(mac)) {
1364 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1366 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1368 retval = ixgbe_set_vf_mac(adapter, vf, mac);
1370 adapter->vfinfo[vf].pf_set_mac = true;
1372 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1373 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1374 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1377 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1379 } else if (is_zero_ether_addr(mac)) {
1380 unsigned char *vf_mac_addr =
1381 adapter->vfinfo[vf].vf_mac_addresses;
1384 if (is_zero_ether_addr(vf_mac_addr))
1387 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1389 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1391 adapter->vfinfo[vf].pf_set_mac = false;
1392 memcpy(vf_mac_addr, mac, ETH_ALEN);
1394 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1403 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1406 struct ixgbe_hw *hw = &adapter->hw;
1409 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1413 /* Revoke tagless access via VLAN 0 */
1414 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1416 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1417 ixgbe_set_vmolr(hw, vf, false);
1419 /* enable hide vlan on X550 */
1420 if (hw->mac.type >= ixgbe_mac_X550)
1421 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1422 IXGBE_QDE_HIDE_VLAN);
1424 adapter->vfinfo[vf].pf_vlan = vlan;
1425 adapter->vfinfo[vf].pf_qos = qos;
1426 dev_info(&adapter->pdev->dev,
1427 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1428 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1429 dev_warn(&adapter->pdev->dev,
1430 "The VF VLAN has been set, but the PF device is not up.\n");
1431 dev_warn(&adapter->pdev->dev,
1432 "Bring the PF device up before attempting to use the VF device.\n");
1439 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1441 struct ixgbe_hw *hw = &adapter->hw;
1444 err = ixgbe_set_vf_vlan(adapter, false,
1445 adapter->vfinfo[vf].pf_vlan, vf);
1446 /* Restore tagless access via VLAN 0 */
1447 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1448 ixgbe_clear_vmvir(adapter, vf);
1449 ixgbe_set_vmolr(hw, vf, true);
1451 /* disable hide VLAN on X550 */
1452 if (hw->mac.type >= ixgbe_mac_X550)
1453 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1455 adapter->vfinfo[vf].pf_vlan = 0;
1456 adapter->vfinfo[vf].pf_qos = 0;
1461 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1462 u8 qos, __be16 vlan_proto)
1465 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1467 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1469 if (vlan_proto != htons(ETH_P_8021Q))
1470 return -EPROTONOSUPPORT;
1472 /* Check if there is already a port VLAN set, if so
1473 * we have to delete the old one first before we
1474 * can set the new one. The usage model had
1475 * previously assumed the user would delete the
1476 * old port VLAN before setting a new one but this
1477 * is not necessarily the case.
1479 if (adapter->vfinfo[vf].pf_vlan)
1480 err = ixgbe_disable_port_vlan(adapter, vf);
1483 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1485 err = ixgbe_disable_port_vlan(adapter, vf);
1492 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1494 switch (adapter->link_speed) {
1495 case IXGBE_LINK_SPEED_100_FULL:
1497 case IXGBE_LINK_SPEED_1GB_FULL:
1499 case IXGBE_LINK_SPEED_10GB_FULL:
1506 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1508 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1509 struct ixgbe_hw *hw = &adapter->hw;
1511 u16 queue, queues_per_pool;
1512 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1515 /* start with base link speed value */
1516 bcnrc_val = adapter->vf_rate_link_speed;
1518 /* Calculate the rate factor values to set */
1519 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1520 bcnrc_val /= tx_rate;
1522 /* clear everything but the rate factor */
1523 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1524 IXGBE_RTTBCNRC_RF_DEC_MASK;
1526 /* enable the rate scheduler */
1527 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1531 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1532 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1533 * and 0x004 otherwise.
1535 switch (hw->mac.type) {
1536 case ixgbe_mac_82599EB:
1537 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1539 case ixgbe_mac_X540:
1540 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1546 /* determine how many queues per pool based on VMDq mask */
1547 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1549 /* write value for all Tx queues belonging to VF */
1550 for (queue = 0; queue < queues_per_pool; queue++) {
1551 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1553 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1554 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1558 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1562 /* VF Tx rate limit was not set */
1563 if (!adapter->vf_rate_link_speed)
1566 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1567 adapter->vf_rate_link_speed = 0;
1568 dev_info(&adapter->pdev->dev,
1569 "Link speed has been changed. VF Transmit rate is disabled\n");
1572 for (i = 0; i < adapter->num_vfs; i++) {
1573 if (!adapter->vf_rate_link_speed)
1574 adapter->vfinfo[i].tx_rate = 0;
1576 ixgbe_set_vf_rate_limit(adapter, i);
1580 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1583 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1586 /* verify VF is active */
1587 if (vf >= adapter->num_vfs)
1590 /* verify link is up */
1591 if (!adapter->link_up)
1594 /* verify we are linked at 10Gbps */
1595 link_speed = ixgbe_link_mbps(adapter);
1596 if (link_speed != 10000)
1602 /* rate limit cannot be less than 10Mbs or greater than link speed */
1603 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1607 adapter->vf_rate_link_speed = link_speed;
1608 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1610 /* update hardware configuration */
1611 ixgbe_set_vf_rate_limit(adapter, vf);
1616 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1618 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1619 struct ixgbe_hw *hw = &adapter->hw;
1621 if (vf >= adapter->num_vfs)
1624 adapter->vfinfo[vf].spoofchk_enabled = setting;
1626 /* configure MAC spoofing */
1627 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1629 /* configure VLAN spoofing */
1630 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1632 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1633 * calling set_ethertype_anti_spoofing for each VF in loop below
1635 if (hw->mac.ops.set_ethertype_anti_spoofing) {
1636 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1637 (IXGBE_ETQF_FILTER_EN |
1638 IXGBE_ETQF_TX_ANTISPOOF |
1641 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1642 (IXGBE_ETQF_FILTER_EN |
1643 IXGBE_ETQF_TX_ANTISPOOF |
1646 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1652 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1655 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1657 /* This operation is currently supported only for 82599 and x540
1660 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1661 adapter->hw.mac.type >= ixgbe_mac_X550)
1664 if (vf >= adapter->num_vfs)
1667 adapter->vfinfo[vf].rss_query_enabled = setting;
1672 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1674 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1676 if (vf >= adapter->num_vfs)
1680 if (adapter->vfinfo[vf].trusted == setting)
1683 adapter->vfinfo[vf].trusted = setting;
1685 /* reset VF to reconfigure features */
1686 adapter->vfinfo[vf].clear_to_send = false;
1687 ixgbe_ping_vf(adapter, vf);
1689 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1694 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1695 int vf, struct ifla_vf_info *ivi)
1697 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1698 if (vf >= adapter->num_vfs)
1701 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1702 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1703 ivi->min_tx_rate = 0;
1704 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1705 ivi->qos = adapter->vfinfo[vf].pf_qos;
1706 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1707 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1708 ivi->trusted = adapter->vfinfo[vf].trusted;