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 int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
51 struct ixgbe_hw *hw = &adapter->hw;
52 int num_vf_macvlans, i;
53 struct vf_macvlans *mv_list;
55 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
56 e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs);
58 /* Enable VMDq flag so device will be set in VM mode */
59 adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED;
60 if (!adapter->ring_feature[RING_F_VMDQ].limit)
61 adapter->ring_feature[RING_F_VMDQ].limit = 1;
62 adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs;
64 num_vf_macvlans = hw->mac.num_rar_entries -
65 (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs);
67 adapter->mv_list = mv_list = kcalloc(num_vf_macvlans,
68 sizeof(struct vf_macvlans),
71 /* Initialize list of VF macvlans */
72 INIT_LIST_HEAD(&adapter->vf_mvs.l);
73 for (i = 0; i < num_vf_macvlans; i++) {
76 list_add(&mv_list->l, &adapter->vf_mvs.l);
81 /* Initialize default switching mode VEB */
82 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
83 adapter->bridge_mode = BRIDGE_MODE_VEB;
85 /* If call to enable VFs succeeded then allocate memory
86 * for per VF control structures.
89 kcalloc(adapter->num_vfs,
90 sizeof(struct vf_data_storage), GFP_KERNEL);
91 if (adapter->vfinfo) {
92 /* limit trafffic classes based on VFs enabled */
93 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) &&
94 (adapter->num_vfs < 16)) {
95 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
96 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
97 } else if (adapter->num_vfs < 32) {
98 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
99 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
101 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
102 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
105 /* Disable RSC when in SR-IOV mode */
106 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
107 IXGBE_FLAG2_RSC_ENABLED);
109 for (i = 0; i < adapter->num_vfs; i++) {
110 /* enable spoof checking for all VFs */
111 adapter->vfinfo[i].spoofchk_enabled = true;
113 /* We support VF RSS querying only for 82599 and x540
114 * devices at the moment. These devices share RSS
115 * indirection table and RSS hash key with PF therefore
116 * we want to disable the querying by default.
118 adapter->vfinfo[i].rss_query_enabled = 0;
120 /* Untrust all VFs */
121 adapter->vfinfo[i].trusted = false;
123 /* set the default xcast mode */
124 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
134 * ixgbe_get_vfs - Find and take references to all vf devices
135 * @adapter: Pointer to adapter struct
137 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
139 struct pci_dev *pdev = adapter->pdev;
140 u16 vendor = pdev->vendor;
141 struct pci_dev *vfdev;
146 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
149 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
151 vfdev = pci_get_device(vendor, vf_id, NULL);
152 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
153 if (!vfdev->is_virtfn)
155 if (vfdev->physfn != pdev)
157 if (vf >= adapter->num_vfs)
160 adapter->vfinfo[vf].vfdev = vfdev;
165 /* Note this function is called when the user wants to enable SR-IOV
166 * VFs using the now deprecated module parameter
168 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
170 int pre_existing_vfs = 0;
172 pre_existing_vfs = pci_num_vf(adapter->pdev);
173 if (!pre_existing_vfs && !adapter->num_vfs)
176 /* If there are pre-existing VFs then we have to force
177 * use of that many - over ride any module parameter value.
178 * This may result from the user unloading the PF driver
179 * while VFs were assigned to guest VMs or because the VFs
180 * have been created via the new PCI SR-IOV sysfs interface.
182 if (pre_existing_vfs) {
183 adapter->num_vfs = pre_existing_vfs;
184 dev_warn(&adapter->pdev->dev,
185 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
189 * The 82599 supports up to 64 VFs per physical function
190 * but this implementation limits allocation to 63 so that
191 * basic networking resources are still available to the
192 * physical function. If the user requests greater than
193 * 63 VFs then it is an error - reset to default of zero.
195 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
197 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
199 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
200 adapter->num_vfs = 0;
205 if (!__ixgbe_enable_sriov(adapter)) {
206 ixgbe_get_vfs(adapter);
210 /* If we have gotten to this point then there is no memory available
211 * to manage the VF devices - print message and bail.
213 e_err(probe, "Unable to allocate memory for VF Data Storage - "
215 ixgbe_disable_sriov(adapter);
218 #endif /* #ifdef CONFIG_PCI_IOV */
219 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
221 unsigned int num_vfs = adapter->num_vfs, vf;
222 struct ixgbe_hw *hw = &adapter->hw;
227 /* set num VFs to 0 to prevent access to vfinfo */
228 adapter->num_vfs = 0;
230 /* put the reference to all of the vf devices */
231 for (vf = 0; vf < num_vfs; ++vf) {
232 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
236 adapter->vfinfo[vf].vfdev = NULL;
240 /* free VF control structures */
241 kfree(adapter->vfinfo);
242 adapter->vfinfo = NULL;
244 /* free macvlan list */
245 kfree(adapter->mv_list);
246 adapter->mv_list = NULL;
248 /* if SR-IOV is already disabled then there is nothing to do */
249 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
252 #ifdef CONFIG_PCI_IOV
254 * If our VFs are assigned we cannot shut down SR-IOV
255 * without causing issues, so just leave the hardware
256 * available but disabled
258 if (pci_vfs_assigned(adapter->pdev)) {
259 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
262 /* disable iov and allow time for transactions to clear */
263 pci_disable_sriov(adapter->pdev);
266 /* turn off device IOV mode */
267 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0);
268 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
269 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
270 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
272 /* set default pool back to 0 */
273 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
274 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
275 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
276 IXGBE_WRITE_FLUSH(hw);
278 /* Disable VMDq flag so device will be set in VM mode */
279 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) {
280 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
281 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
282 rss = min_t(int, ixgbe_max_rss_indices(adapter),
285 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
288 adapter->ring_feature[RING_F_VMDQ].offset = 0;
289 adapter->ring_feature[RING_F_RSS].limit = rss;
291 /* take a breather then clean up driver data */
296 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
298 #ifdef CONFIG_PCI_IOV
299 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
302 int pre_existing_vfs = pci_num_vf(dev);
304 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
305 err = ixgbe_disable_sriov(adapter);
306 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
312 /* While the SR-IOV capability structure reports total VFs to be 64,
313 * we have to limit the actual number allocated based on two factors.
314 * First, we reserve some transmit/receive resources for the PF.
315 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
316 * account for this, so that we don't accidentally allocate more VFs
317 * than we have available pools. The PCI bus driver already checks for
318 * other values out of range.
320 if ((num_vfs + adapter->num_rx_pools) > IXGBE_MAX_VF_FUNCTIONS)
323 adapter->num_vfs = num_vfs;
325 err = __ixgbe_enable_sriov(adapter);
329 for (i = 0; i < adapter->num_vfs; i++)
330 ixgbe_vf_configuration(dev, (i | 0x10000000));
332 err = pci_enable_sriov(dev, num_vfs);
334 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
337 ixgbe_get_vfs(adapter);
338 ixgbe_sriov_reinit(adapter);
346 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
348 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
350 #ifdef CONFIG_PCI_IOV
351 u32 current_flags = adapter->flags;
354 err = ixgbe_disable_sriov(adapter);
356 /* Only reinit if no error and state changed */
357 #ifdef CONFIG_PCI_IOV
358 if (!err && current_flags != adapter->flags)
359 ixgbe_sriov_reinit(adapter);
365 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
368 return ixgbe_pci_sriov_disable(dev);
370 return ixgbe_pci_sriov_enable(dev, num_vfs);
373 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
376 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
377 >> IXGBE_VT_MSGINFO_SHIFT;
378 u16 *hash_list = (u16 *)&msgbuf[1];
379 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
380 struct ixgbe_hw *hw = &adapter->hw;
385 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
387 /* only so many hash values supported */
388 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
391 * salt away the number of multi cast addresses assigned
392 * to this VF for later use to restore when the PF multi cast
395 vfinfo->num_vf_mc_hashes = entries;
398 * VFs are limited to using the MTA hash table for their multicast
401 for (i = 0; i < entries; i++) {
402 vfinfo->vf_mc_hashes[i] = hash_list[i];
405 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
406 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
407 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
408 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
409 mta_reg |= (1 << vector_bit);
410 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
412 vmolr |= IXGBE_VMOLR_ROMPE;
413 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
418 #ifdef CONFIG_PCI_IOV
419 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
421 struct ixgbe_hw *hw = &adapter->hw;
422 struct vf_data_storage *vfinfo;
428 for (i = 0; i < adapter->num_vfs; i++) {
429 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
430 vfinfo = &adapter->vfinfo[i];
431 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
432 hw->addr_ctrl.mta_in_use++;
433 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
434 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
435 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
436 mta_reg |= (1 << vector_bit);
437 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
440 if (vfinfo->num_vf_mc_hashes)
441 vmolr |= IXGBE_VMOLR_ROMPE;
443 vmolr &= ~IXGBE_VMOLR_ROMPE;
444 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
447 /* Restore any VF macvlans */
448 ixgbe_full_sync_mac_table(adapter);
452 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
455 struct ixgbe_hw *hw = &adapter->hw;
458 /* If VLAN overlaps with one the PF is currently monitoring make
459 * sure that we are able to allocate a VLVF entry. This may be
460 * redundant but it guarantees PF will maintain visibility to
463 if (add && test_bit(vid, adapter->active_vlans)) {
464 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
469 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
474 /* If we failed to add the VF VLAN or we are removing the VF VLAN
475 * we may need to drop the PF pool bit in order to allow us to free
476 * up the VLVF resources.
478 if (test_bit(vid, adapter->active_vlans) ||
479 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
480 ixgbe_update_pf_promisc_vlvf(adapter, vid);
485 static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
487 struct ixgbe_hw *hw = &adapter->hw;
488 int max_frame = msgbuf[1];
492 * For 82599EB we have to keep all PFs and VFs operating with
493 * the same max_frame value in order to avoid sending an oversize
494 * frame to a VF. In order to guarantee this is handled correctly
495 * for all cases we have several special exceptions to take into
496 * account before we can enable the VF for receive
498 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
499 struct net_device *dev = adapter->netdev;
500 int pf_max_frame = dev->mtu + ETH_HLEN;
501 u32 reg_offset, vf_shift, vfre;
505 if (dev->features & NETIF_F_FCOE_MTU)
506 pf_max_frame = max_t(int, pf_max_frame,
507 IXGBE_FCOE_JUMBO_FRAME_SIZE);
509 #endif /* CONFIG_FCOE */
510 switch (adapter->vfinfo[vf].vf_api) {
511 case ixgbe_mbox_api_11:
512 case ixgbe_mbox_api_12:
514 * Version 1.1 supports jumbo frames on VFs if PF has
515 * jumbo frames enabled which means legacy VFs are
518 if (pf_max_frame > ETH_FRAME_LEN)
522 * If the PF or VF are running w/ jumbo frames enabled
523 * we need to shut down the VF Rx path as we cannot
524 * support jumbo frames on legacy VFs
526 if ((pf_max_frame > ETH_FRAME_LEN) ||
527 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
532 /* determine VF receive enable location */
534 reg_offset = vf / 32;
536 /* enable or disable receive depending on error */
537 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
539 vfre &= ~(1 << vf_shift);
541 vfre |= 1 << vf_shift;
542 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
545 e_err(drv, "VF max_frame %d out of range\n", max_frame);
550 /* MTU < 68 is an error and causes problems on some kernels */
551 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
552 e_err(drv, "VF max_frame %d out of range\n", max_frame);
556 /* pull current max frame size from hardware */
557 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
558 max_frs &= IXGBE_MHADD_MFS_MASK;
559 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
561 if (max_frs < max_frame) {
562 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
563 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
566 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
571 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
573 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
574 vmolr |= IXGBE_VMOLR_BAM;
576 vmolr |= IXGBE_VMOLR_AUPE;
578 vmolr &= ~IXGBE_VMOLR_AUPE;
579 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
582 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
584 struct ixgbe_hw *hw = &adapter->hw;
586 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
589 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
591 struct ixgbe_hw *hw = &adapter->hw;
594 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
595 for (i = IXGBE_VLVF_ENTRIES; i--;) {
596 u32 bits[2], vlvfb, vid, vfta, vlvf;
597 u32 word = i * 2 + vf / 32;
598 u32 mask = 1 << (vf % 32);
600 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
602 /* if our bit isn't set we can skip it */
606 /* clear our bit from vlvfb */
609 /* create 64b mask to chedk to see if we should clear VLVF */
610 bits[word % 2] = vlvfb;
611 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
613 /* if promisc is enabled, PF will be present, leave VFTA */
614 if (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC) {
615 bits[VMDQ_P(0) / 32] &= ~(1 << (VMDQ_P(0) % 32));
617 if (bits[0] || bits[1])
622 /* if other pools are present, just remove ourselves */
623 if (bits[0] || bits[1])
626 /* if we cannot determine VLAN just remove ourselves */
627 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
631 vid = vlvf & VLAN_VID_MASK;
632 mask = 1 << (vid % 32);
634 /* clear bit from VFTA */
635 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
637 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
639 /* clear POOL selection enable */
640 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
642 /* clear pool bits */
643 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
647 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
649 struct ixgbe_hw *hw = &adapter->hw;
650 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
651 u8 num_tcs = netdev_get_num_tc(adapter->netdev);
653 /* remove VLAN filters beloning to this VF */
654 ixgbe_clear_vf_vlans(adapter, vf);
656 /* add back PF assigned VLAN or VLAN 0 */
657 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
659 /* reset offloads to defaults */
660 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
662 /* set outgoing tags for VFs */
663 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
664 ixgbe_clear_vmvir(adapter, vf);
666 if (vfinfo->pf_qos || !num_tcs)
667 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
670 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
671 adapter->default_up, vf);
673 if (vfinfo->spoofchk_enabled)
674 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
677 /* reset multicast table array for vf */
678 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
680 /* Flush and reset the mta with the new values */
681 ixgbe_set_rx_mode(adapter->netdev);
683 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
685 /* reset VF api back to unknown */
686 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
689 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
690 int vf, unsigned char *mac_addr)
692 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
693 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN);
694 ixgbe_add_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
699 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
700 int vf, int index, unsigned char *mac_addr)
702 struct list_head *pos;
703 struct vf_macvlans *entry;
706 list_for_each(pos, &adapter->vf_mvs.l) {
707 entry = list_entry(pos, struct vf_macvlans, l);
708 if (entry->vf == vf) {
711 entry->is_macvlan = false;
712 ixgbe_del_mac_filter(adapter,
713 entry->vf_macvlan, vf);
719 * If index was zero then we were asked to clear the uc list
720 * for the VF. We're done.
727 list_for_each(pos, &adapter->vf_mvs.l) {
728 entry = list_entry(pos, struct vf_macvlans, l);
734 * If we traversed the entire list and didn't find a free entry
735 * then we're out of space on the RAR table. Also entry may
736 * be NULL because the original memory allocation for the list
737 * failed, which is not fatal but does mean we can't support
738 * VF requests for MACVLAN because we couldn't allocate
739 * memory for the list management required.
741 if (!entry || !entry->free)
745 entry->is_macvlan = true;
747 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
749 ixgbe_add_mac_filter(adapter, mac_addr, vf);
754 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
756 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
757 unsigned int vfn = (event_mask & 0x3f);
759 bool enable = ((event_mask & 0x10000000U) != 0);
762 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
767 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
770 struct ixgbe_hw *hw = &adapter->hw;
771 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
772 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
775 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
778 /* flush previous write */
779 IXGBE_WRITE_FLUSH(hw);
781 /* indicate to hardware that we want to set drop enable */
782 reg = IXGBE_QDE_WRITE | IXGBE_QDE_ENABLE;
783 reg |= i << IXGBE_QDE_IDX_SHIFT;
784 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
788 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
790 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
791 struct ixgbe_hw *hw = &adapter->hw;
792 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
793 u32 reg, reg_offset, vf_shift;
794 u32 msgbuf[4] = {0, 0, 0, 0};
795 u8 *addr = (u8 *)(&msgbuf[1]);
796 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
799 e_info(probe, "VF Reset msg received from vf %d\n", vf);
801 /* reset the filters for the device */
802 ixgbe_vf_reset_event(adapter, vf);
804 /* set vf mac address */
805 if (!is_zero_ether_addr(vf_mac))
806 ixgbe_set_vf_mac(adapter, vf, vf_mac);
809 reg_offset = vf / 32;
811 /* enable transmit for vf */
812 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
813 reg |= 1 << vf_shift;
814 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
816 /* force drop enable for all VF Rx queues */
817 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
819 /* enable receive for vf */
820 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
821 reg |= 1 << vf_shift;
823 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
824 * For more info take a look at ixgbe_set_vf_lpe
826 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
827 struct net_device *dev = adapter->netdev;
828 int pf_max_frame = dev->mtu + ETH_HLEN;
831 if (dev->features & NETIF_F_FCOE_MTU)
832 pf_max_frame = max_t(int, pf_max_frame,
833 IXGBE_FCOE_JUMBO_FRAME_SIZE);
835 #endif /* CONFIG_FCOE */
836 if (pf_max_frame > ETH_FRAME_LEN)
837 reg &= ~(1 << vf_shift);
839 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
841 /* enable VF mailbox for further messages */
842 adapter->vfinfo[vf].clear_to_send = true;
844 /* Enable counting of spoofed packets in the SSVPC register */
845 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
846 reg |= (1 << vf_shift);
847 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
850 * Reset the VFs TDWBAL and TDWBAH registers
851 * which are not cleared by an FLR
853 for (i = 0; i < q_per_pool; i++) {
854 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
855 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
858 /* reply to reset with ack and vf mac address */
859 msgbuf[0] = IXGBE_VF_RESET;
860 if (!is_zero_ether_addr(vf_mac)) {
861 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
862 memcpy(addr, vf_mac, ETH_ALEN);
864 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
865 dev_warn(&adapter->pdev->dev,
866 "VF %d has no MAC address assigned, you may have to assign one manually\n",
871 * Piggyback the multicast filter type so VF can compute the
874 msgbuf[3] = hw->mac.mc_filter_type;
875 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
880 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
883 u8 *new_mac = ((u8 *)(&msgbuf[1]));
885 if (!is_valid_ether_addr(new_mac)) {
886 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
890 if (adapter->vfinfo[vf].pf_set_mac &&
891 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
893 "VF %d attempted to override administratively set MAC address\n"
894 "Reload the VF driver to resume operations\n",
899 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
902 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
905 u32 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
906 u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
907 u8 tcs = netdev_get_num_tc(adapter->netdev);
908 struct ixgbe_hw *hw = &adapter->hw;
911 if (adapter->vfinfo[vf].pf_vlan || tcs) {
913 "VF %d attempted to override administratively set VLAN configuration\n"
914 "Reload the VF driver to resume operations\n",
919 /* VLAN 0 is a special case, don't allow it to be removed */
923 err = ixgbe_set_vf_vlan(adapter, add, vid, vf);
927 if (adapter->vfinfo[vf].spoofchk_enabled)
928 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
931 adapter->vfinfo[vf].vlan_count++;
932 else if (adapter->vfinfo[vf].vlan_count)
933 adapter->vfinfo[vf].vlan_count--;
938 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
941 u8 *new_mac = ((u8 *)(&msgbuf[1]));
942 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
943 IXGBE_VT_MSGINFO_SHIFT;
946 if (adapter->vfinfo[vf].pf_set_mac && index > 0) {
948 "VF %d requested MACVLAN filter but is administratively denied\n",
953 /* An non-zero index indicates the VF is setting a filter */
955 if (!is_valid_ether_addr(new_mac)) {
956 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
961 * If the VF is allowed to set MAC filters then turn off
962 * anti-spoofing to avoid false positives.
964 if (adapter->vfinfo[vf].spoofchk_enabled)
965 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false);
968 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
971 "VF %d has requested a MACVLAN filter but there is no space for it\n",
977 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
983 case ixgbe_mbox_api_10:
984 case ixgbe_mbox_api_11:
985 case ixgbe_mbox_api_12:
986 adapter->vfinfo[vf].vf_api = api;
992 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
997 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1000 struct net_device *dev = adapter->netdev;
1001 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1002 unsigned int default_tc = 0;
1003 u8 num_tcs = netdev_get_num_tc(dev);
1005 /* verify the PF is supporting the correct APIs */
1006 switch (adapter->vfinfo[vf].vf_api) {
1007 case ixgbe_mbox_api_20:
1008 case ixgbe_mbox_api_11:
1009 case ixgbe_mbox_api_12:
1015 /* only allow 1 Tx queue for bandwidth limiting */
1016 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1017 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1019 /* if TCs > 1 determine which TC belongs to default user priority */
1021 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1023 /* notify VF of need for VLAN tag stripping, and correct queue */
1025 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1026 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1027 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1029 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1031 /* notify VF of default queue */
1032 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1037 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1040 u32 *out_buf = &msgbuf[1];
1041 const u8 *reta = adapter->rss_indir_tbl;
1042 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1044 /* Check if operation is permitted */
1045 if (!adapter->vfinfo[vf].rss_query_enabled)
1048 /* verify the PF is supporting the correct API */
1049 if (adapter->vfinfo[vf].vf_api != ixgbe_mbox_api_12)
1052 /* This mailbox command is supported (required) only for 82599 and x540
1053 * VFs which support up to 4 RSS queues. Therefore we will compress the
1054 * RETA by saving only 2 bits from each entry. This way we will be able
1055 * to transfer the whole RETA in a single mailbox operation.
1057 for (i = 0; i < reta_size / 16; i++) {
1059 for (j = 0; j < 16; j++)
1060 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1066 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1067 u32 *msgbuf, u32 vf)
1069 u32 *rss_key = &msgbuf[1];
1071 /* Check if the operation is permitted */
1072 if (!adapter->vfinfo[vf].rss_query_enabled)
1075 /* verify the PF is supporting the correct API */
1076 if (adapter->vfinfo[vf].vf_api != ixgbe_mbox_api_12)
1079 memcpy(rss_key, adapter->rss_key, sizeof(adapter->rss_key));
1084 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1085 u32 *msgbuf, u32 vf)
1087 struct ixgbe_hw *hw = &adapter->hw;
1088 int xcast_mode = msgbuf[1];
1089 u32 vmolr, disable, enable;
1091 /* verify the PF is supporting the correct APIs */
1092 switch (adapter->vfinfo[vf].vf_api) {
1093 case ixgbe_mbox_api_12:
1099 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1100 !adapter->vfinfo[vf].trusted) {
1101 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1104 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1107 switch (xcast_mode) {
1108 case IXGBEVF_XCAST_MODE_NONE:
1109 disable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1112 case IXGBEVF_XCAST_MODE_MULTI:
1113 disable = IXGBE_VMOLR_MPE;
1114 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1116 case IXGBEVF_XCAST_MODE_ALLMULTI:
1118 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1124 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1127 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1129 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1132 msgbuf[1] = xcast_mode;
1137 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1139 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1140 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1141 struct ixgbe_hw *hw = &adapter->hw;
1144 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1147 pr_err("Error receiving message from VF\n");
1151 /* this is a message we already processed, do nothing */
1152 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1155 /* flush the ack before we write any messages back */
1156 IXGBE_WRITE_FLUSH(hw);
1158 if (msgbuf[0] == IXGBE_VF_RESET)
1159 return ixgbe_vf_reset_msg(adapter, vf);
1162 * until the vf completes a virtual function reset it should not be
1163 * allowed to start any configuration.
1165 if (!adapter->vfinfo[vf].clear_to_send) {
1166 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1167 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1171 switch ((msgbuf[0] & 0xFFFF)) {
1172 case IXGBE_VF_SET_MAC_ADDR:
1173 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1175 case IXGBE_VF_SET_MULTICAST:
1176 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1178 case IXGBE_VF_SET_VLAN:
1179 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1181 case IXGBE_VF_SET_LPE:
1182 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf);
1184 case IXGBE_VF_SET_MACVLAN:
1185 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1187 case IXGBE_VF_API_NEGOTIATE:
1188 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1190 case IXGBE_VF_GET_QUEUES:
1191 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1193 case IXGBE_VF_GET_RETA:
1194 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1196 case IXGBE_VF_GET_RSS_KEY:
1197 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1199 case IXGBE_VF_UPDATE_XCAST_MODE:
1200 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1203 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1204 retval = IXGBE_ERR_MBX;
1208 /* notify the VF of the results of what it sent us */
1210 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1212 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1214 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1216 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1221 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1223 struct ixgbe_hw *hw = &adapter->hw;
1224 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1226 /* if device isn't clear to send it shouldn't be reading either */
1227 if (!adapter->vfinfo[vf].clear_to_send)
1228 ixgbe_write_mbx(hw, &msg, 1, vf);
1231 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1233 struct ixgbe_hw *hw = &adapter->hw;
1236 for (vf = 0; vf < adapter->num_vfs; vf++) {
1237 /* process any reset requests */
1238 if (!ixgbe_check_for_rst(hw, vf))
1239 ixgbe_vf_reset_event(adapter, vf);
1241 /* process any messages pending */
1242 if (!ixgbe_check_for_msg(hw, vf))
1243 ixgbe_rcv_msg_from_vf(adapter, vf);
1245 /* process any acks */
1246 if (!ixgbe_check_for_ack(hw, vf))
1247 ixgbe_rcv_ack_from_vf(adapter, vf);
1251 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
1253 struct ixgbe_hw *hw = &adapter->hw;
1255 /* disable transmit and receive for all vfs */
1256 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
1257 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
1259 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
1260 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
1263 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1265 struct ixgbe_hw *hw = &adapter->hw;
1268 ping = IXGBE_PF_CONTROL_MSG;
1269 if (adapter->vfinfo[vf].clear_to_send)
1270 ping |= IXGBE_VT_MSGTYPE_CTS;
1271 ixgbe_write_mbx(hw, &ping, 1, vf);
1274 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1276 struct ixgbe_hw *hw = &adapter->hw;
1280 for (i = 0 ; i < adapter->num_vfs; i++) {
1281 ping = IXGBE_PF_CONTROL_MSG;
1282 if (adapter->vfinfo[i].clear_to_send)
1283 ping |= IXGBE_VT_MSGTYPE_CTS;
1284 ixgbe_write_mbx(hw, &ping, 1, i);
1288 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1290 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1291 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
1293 adapter->vfinfo[vf].pf_set_mac = true;
1294 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
1295 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
1296 " change effective.");
1297 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1298 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
1299 " but the PF device is not up.\n");
1300 dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
1301 " attempting to use the VF device.\n");
1303 return ixgbe_set_vf_mac(adapter, vf, mac);
1306 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1309 struct ixgbe_hw *hw = &adapter->hw;
1312 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1316 /* Revoke tagless access via VLAN 0 */
1317 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1319 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1320 ixgbe_set_vmolr(hw, vf, false);
1321 if (adapter->vfinfo[vf].spoofchk_enabled)
1322 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
1323 adapter->vfinfo[vf].vlan_count++;
1325 /* enable hide vlan on X550 */
1326 if (hw->mac.type >= ixgbe_mac_X550)
1327 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1328 IXGBE_QDE_HIDE_VLAN);
1330 adapter->vfinfo[vf].pf_vlan = vlan;
1331 adapter->vfinfo[vf].pf_qos = qos;
1332 dev_info(&adapter->pdev->dev,
1333 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1334 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1335 dev_warn(&adapter->pdev->dev,
1336 "The VF VLAN has been set, but the PF device is not up.\n");
1337 dev_warn(&adapter->pdev->dev,
1338 "Bring the PF device up before attempting to use the VF device.\n");
1345 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1347 struct ixgbe_hw *hw = &adapter->hw;
1350 err = ixgbe_set_vf_vlan(adapter, false,
1351 adapter->vfinfo[vf].pf_vlan, vf);
1352 /* Restore tagless access via VLAN 0 */
1353 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1354 ixgbe_clear_vmvir(adapter, vf);
1355 ixgbe_set_vmolr(hw, vf, true);
1356 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1357 if (adapter->vfinfo[vf].vlan_count)
1358 adapter->vfinfo[vf].vlan_count--;
1360 /* disable hide VLAN on X550 */
1361 if (hw->mac.type >= ixgbe_mac_X550)
1362 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1364 adapter->vfinfo[vf].pf_vlan = 0;
1365 adapter->vfinfo[vf].pf_qos = 0;
1370 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
1373 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1375 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1378 /* Check if there is already a port VLAN set, if so
1379 * we have to delete the old one first before we
1380 * can set the new one. The usage model had
1381 * previously assumed the user would delete the
1382 * old port VLAN before setting a new one but this
1383 * is not necessarily the case.
1385 if (adapter->vfinfo[vf].pf_vlan)
1386 err = ixgbe_disable_port_vlan(adapter, vf);
1389 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1391 err = ixgbe_disable_port_vlan(adapter, vf);
1398 static int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1400 switch (adapter->link_speed) {
1401 case IXGBE_LINK_SPEED_100_FULL:
1403 case IXGBE_LINK_SPEED_1GB_FULL:
1405 case IXGBE_LINK_SPEED_10GB_FULL:
1412 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1414 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1415 struct ixgbe_hw *hw = &adapter->hw;
1417 u16 queue, queues_per_pool;
1418 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1421 /* start with base link speed value */
1422 bcnrc_val = adapter->vf_rate_link_speed;
1424 /* Calculate the rate factor values to set */
1425 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1426 bcnrc_val /= tx_rate;
1428 /* clear everything but the rate factor */
1429 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1430 IXGBE_RTTBCNRC_RF_DEC_MASK;
1432 /* enable the rate scheduler */
1433 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1437 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1438 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1439 * and 0x004 otherwise.
1441 switch (hw->mac.type) {
1442 case ixgbe_mac_82599EB:
1443 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1445 case ixgbe_mac_X540:
1446 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1452 /* determine how many queues per pool based on VMDq mask */
1453 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1455 /* write value for all Tx queues belonging to VF */
1456 for (queue = 0; queue < queues_per_pool; queue++) {
1457 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1459 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1460 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1464 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1468 /* VF Tx rate limit was not set */
1469 if (!adapter->vf_rate_link_speed)
1472 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1473 adapter->vf_rate_link_speed = 0;
1474 dev_info(&adapter->pdev->dev,
1475 "Link speed has been changed. VF Transmit rate is disabled\n");
1478 for (i = 0; i < adapter->num_vfs; i++) {
1479 if (!adapter->vf_rate_link_speed)
1480 adapter->vfinfo[i].tx_rate = 0;
1482 ixgbe_set_vf_rate_limit(adapter, i);
1486 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1489 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1492 /* verify VF is active */
1493 if (vf >= adapter->num_vfs)
1496 /* verify link is up */
1497 if (!adapter->link_up)
1500 /* verify we are linked at 10Gbps */
1501 link_speed = ixgbe_link_mbps(adapter);
1502 if (link_speed != 10000)
1508 /* rate limit cannot be less than 10Mbs or greater than link speed */
1509 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1513 adapter->vf_rate_link_speed = link_speed;
1514 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1516 /* update hardware configuration */
1517 ixgbe_set_vf_rate_limit(adapter, vf);
1522 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1524 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1525 int vf_target_reg = vf >> 3;
1526 int vf_target_shift = vf % 8;
1527 struct ixgbe_hw *hw = &adapter->hw;
1530 if (vf >= adapter->num_vfs)
1533 adapter->vfinfo[vf].spoofchk_enabled = setting;
1535 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1536 regval &= ~(1 << vf_target_shift);
1537 regval |= (setting << vf_target_shift);
1538 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1540 if (adapter->vfinfo[vf].vlan_count) {
1541 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT;
1542 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1543 regval &= ~(1 << vf_target_shift);
1544 regval |= (setting << vf_target_shift);
1545 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1551 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1554 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1556 /* This operation is currently supported only for 82599 and x540
1559 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1560 adapter->hw.mac.type >= ixgbe_mac_X550)
1563 if (vf >= adapter->num_vfs)
1566 adapter->vfinfo[vf].rss_query_enabled = setting;
1571 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1573 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1575 if (vf >= adapter->num_vfs)
1579 if (adapter->vfinfo[vf].trusted == setting)
1582 adapter->vfinfo[vf].trusted = setting;
1584 /* reset VF to reconfigure features */
1585 adapter->vfinfo[vf].clear_to_send = false;
1586 ixgbe_ping_vf(adapter, vf);
1588 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1593 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1594 int vf, struct ifla_vf_info *ivi)
1596 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1597 if (vf >= adapter->num_vfs)
1600 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1601 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1602 ivi->min_tx_rate = 0;
1603 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1604 ivi->qos = adapter->vfinfo[vf].pf_qos;
1605 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1606 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1607 ivi->trusted = adapter->vfinfo[vf].trusted;