1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2012 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 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *******************************************************************************/
28 #include <linux/types.h>
29 #include <linux/module.h>
30 #include <linux/pci.h>
31 #include <linux/netdevice.h>
32 #include <linux/vmalloc.h>
33 #include <linux/string.h>
36 #include <linux/tcp.h>
37 #include <linux/ipv6.h>
38 #ifdef NETIF_F_HW_VLAN_TX
39 #include <linux/if_vlan.h>
43 #include "ixgbe_type.h"
44 #include "ixgbe_sriov.h"
47 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
49 struct ixgbe_hw *hw = &adapter->hw;
50 int num_vf_macvlans, i;
51 struct vf_macvlans *mv_list;
53 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
54 e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs);
56 /* Enable VMDq flag so device will be set in VM mode */
57 adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED;
58 if (!adapter->ring_feature[RING_F_VMDQ].limit)
59 adapter->ring_feature[RING_F_VMDQ].limit = 1;
60 adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs;
62 num_vf_macvlans = hw->mac.num_rar_entries -
63 (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs);
65 adapter->mv_list = mv_list = kcalloc(num_vf_macvlans,
66 sizeof(struct vf_macvlans),
69 /* Initialize list of VF macvlans */
70 INIT_LIST_HEAD(&adapter->vf_mvs.l);
71 for (i = 0; i < num_vf_macvlans; i++) {
74 mv_list->rar_entry = hw->mac.num_rar_entries -
75 (i + adapter->num_vfs + 1);
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->flags2 |= IXGBE_FLAG2_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 /* We do not support RSS w/ SR-IOV */
106 adapter->ring_feature[RING_F_RSS].limit = 1;
108 /* Disable RSC when in SR-IOV mode */
109 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
110 IXGBE_FLAG2_RSC_ENABLED);
112 /* enable spoof checking for all VFs */
113 for (i = 0; i < adapter->num_vfs; i++)
114 adapter->vfinfo[i].spoofchk_enabled = true;
121 /* Note this function is called when the user wants to enable SR-IOV
122 * VFs using the now deprecated module parameter
124 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
126 int pre_existing_vfs = 0;
128 pre_existing_vfs = pci_num_vf(adapter->pdev);
129 if (!pre_existing_vfs && !adapter->num_vfs)
132 if (!pre_existing_vfs)
133 dev_warn(&adapter->pdev->dev,
134 "Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.\n");
136 /* If there are pre-existing VFs then we have to force
137 * use of that many - over ride any module parameter value.
138 * This may result from the user unloading the PF driver
139 * while VFs were assigned to guest VMs or because the VFs
140 * have been created via the new PCI SR-IOV sysfs interface.
142 if (pre_existing_vfs) {
143 adapter->num_vfs = pre_existing_vfs;
144 dev_warn(&adapter->pdev->dev,
145 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
149 * The 82599 supports up to 64 VFs per physical function
150 * but this implementation limits allocation to 63 so that
151 * basic networking resources are still available to the
152 * physical function. If the user requests greater thn
153 * 63 VFs then it is an error - reset to default of zero.
155 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, 63);
157 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
159 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
160 adapter->num_vfs = 0;
165 if (!__ixgbe_enable_sriov(adapter))
168 /* If we have gotten to this point then there is no memory available
169 * to manage the VF devices - print message and bail.
171 e_err(probe, "Unable to allocate memory for VF Data Storage - "
173 ixgbe_disable_sriov(adapter);
176 static bool ixgbe_vfs_are_assigned(struct ixgbe_adapter *adapter)
178 struct pci_dev *pdev = adapter->pdev;
179 struct pci_dev *vfdev;
182 switch (adapter->hw.mac.type) {
183 case ixgbe_mac_82599EB:
184 dev_id = IXGBE_DEV_ID_82599_VF;
187 dev_id = IXGBE_DEV_ID_X540_VF;
193 /* loop through all the VFs to see if we own any that are assigned */
194 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL);
196 /* if we don't own it we don't care */
197 if (vfdev->is_virtfn && vfdev->physfn == pdev) {
198 /* if it is assigned we cannot release it */
199 if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
203 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev);
209 #endif /* #ifdef CONFIG_PCI_IOV */
210 void ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
212 struct ixgbe_hw *hw = &adapter->hw;
216 /* set num VFs to 0 to prevent access to vfinfo */
217 adapter->num_vfs = 0;
219 /* free VF control structures */
220 kfree(adapter->vfinfo);
221 adapter->vfinfo = NULL;
223 /* free macvlan list */
224 kfree(adapter->mv_list);
225 adapter->mv_list = NULL;
227 /* if SR-IOV is already disabled then there is nothing to do */
228 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
231 #ifdef CONFIG_PCI_IOV
233 * If our VFs are assigned we cannot shut down SR-IOV
234 * without causing issues, so just leave the hardware
235 * available but disabled
237 if (ixgbe_vfs_are_assigned(adapter)) {
238 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
241 /* disable iov and allow time for transactions to clear */
242 pci_disable_sriov(adapter->pdev);
245 /* turn off device IOV mode */
246 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0);
247 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
248 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
249 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
251 /* set default pool back to 0 */
252 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
253 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
254 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
255 IXGBE_WRITE_FLUSH(hw);
257 /* Disable VMDq flag so device will be set in VM mode */
258 if (adapter->ring_feature[RING_F_VMDQ].limit == 1)
259 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
260 adapter->ring_feature[RING_F_VMDQ].offset = 0;
262 /* take a breather then clean up driver data */
265 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
268 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
271 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
272 >> IXGBE_VT_MSGINFO_SHIFT;
273 u16 *hash_list = (u16 *)&msgbuf[1];
274 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
275 struct ixgbe_hw *hw = &adapter->hw;
281 /* only so many hash values supported */
282 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
285 * salt away the number of multi cast addresses assigned
286 * to this VF for later use to restore when the PF multi cast
289 vfinfo->num_vf_mc_hashes = entries;
292 * VFs are limited to using the MTA hash table for their multicast
295 for (i = 0; i < entries; i++) {
296 vfinfo->vf_mc_hashes[i] = hash_list[i];
299 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
300 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
301 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
302 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
303 mta_reg |= (1 << vector_bit);
304 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
310 static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter)
312 struct ixgbe_hw *hw = &adapter->hw;
313 struct list_head *pos;
314 struct vf_macvlans *entry;
316 list_for_each(pos, &adapter->vf_mvs.l) {
317 entry = list_entry(pos, struct vf_macvlans, l);
319 hw->mac.ops.set_rar(hw, entry->rar_entry,
321 entry->vf, IXGBE_RAH_AV);
325 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
327 struct ixgbe_hw *hw = &adapter->hw;
328 struct vf_data_storage *vfinfo;
334 for (i = 0; i < adapter->num_vfs; i++) {
335 vfinfo = &adapter->vfinfo[i];
336 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
337 hw->addr_ctrl.mta_in_use++;
338 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
339 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
340 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
341 mta_reg |= (1 << vector_bit);
342 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
346 /* Restore any VF macvlans */
347 ixgbe_restore_vf_macvlans(adapter);
350 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
353 /* VLAN 0 is a special case, don't allow it to be removed */
357 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
360 static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
362 struct ixgbe_hw *hw = &adapter->hw;
363 int max_frame = msgbuf[1];
367 * For 82599EB we have to keep all PFs and VFs operating with
368 * the same max_frame value in order to avoid sending an oversize
369 * frame to a VF. In order to guarantee this is handled correctly
370 * for all cases we have several special exceptions to take into
371 * account before we can enable the VF for receive
373 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
374 struct net_device *dev = adapter->netdev;
375 int pf_max_frame = dev->mtu + ETH_HLEN;
376 u32 reg_offset, vf_shift, vfre;
380 if (dev->features & NETIF_F_FCOE_MTU)
381 pf_max_frame = max_t(int, pf_max_frame,
382 IXGBE_FCOE_JUMBO_FRAME_SIZE);
384 #endif /* CONFIG_FCOE */
385 switch (adapter->vfinfo[vf].vf_api) {
386 case ixgbe_mbox_api_11:
388 * Version 1.1 supports jumbo frames on VFs if PF has
389 * jumbo frames enabled which means legacy VFs are
392 if (pf_max_frame > ETH_FRAME_LEN)
396 * If the PF or VF are running w/ jumbo frames enabled
397 * we need to shut down the VF Rx path as we cannot
398 * support jumbo frames on legacy VFs
400 if ((pf_max_frame > ETH_FRAME_LEN) ||
401 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
406 /* determine VF receive enable location */
408 reg_offset = vf / 32;
410 /* enable or disable receive depending on error */
411 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
413 vfre &= ~(1 << vf_shift);
415 vfre |= 1 << vf_shift;
416 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
419 e_err(drv, "VF max_frame %d out of range\n", max_frame);
424 /* MTU < 68 is an error and causes problems on some kernels */
425 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
426 e_err(drv, "VF max_frame %d out of range\n", max_frame);
430 /* pull current max frame size from hardware */
431 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
432 max_frs &= IXGBE_MHADD_MFS_MASK;
433 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
435 if (max_frs < max_frame) {
436 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
437 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
440 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
445 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
447 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
448 vmolr |= (IXGBE_VMOLR_ROMPE |
451 vmolr |= IXGBE_VMOLR_AUPE;
453 vmolr &= ~IXGBE_VMOLR_AUPE;
454 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
457 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
459 struct ixgbe_hw *hw = &adapter->hw;
461 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
463 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
465 struct ixgbe_hw *hw = &adapter->hw;
466 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
467 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
468 u8 num_tcs = netdev_get_num_tc(adapter->netdev);
470 /* add PF assigned VLAN or VLAN 0 */
471 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
473 /* reset offloads to defaults */
474 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
476 /* set outgoing tags for VFs */
477 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
478 ixgbe_clear_vmvir(adapter, vf);
480 if (vfinfo->pf_qos || !num_tcs)
481 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
484 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
485 adapter->default_up, vf);
487 if (vfinfo->spoofchk_enabled)
488 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
491 /* reset multicast table array for vf */
492 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
494 /* Flush and reset the mta with the new values */
495 ixgbe_set_rx_mode(adapter->netdev);
497 hw->mac.ops.clear_rar(hw, rar_entry);
499 /* reset VF api back to unknown */
500 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
503 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
504 int vf, unsigned char *mac_addr)
506 struct ixgbe_hw *hw = &adapter->hw;
507 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
509 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6);
510 hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
515 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
516 int vf, int index, unsigned char *mac_addr)
518 struct ixgbe_hw *hw = &adapter->hw;
519 struct list_head *pos;
520 struct vf_macvlans *entry;
523 list_for_each(pos, &adapter->vf_mvs.l) {
524 entry = list_entry(pos, struct vf_macvlans, l);
525 if (entry->vf == vf) {
528 entry->is_macvlan = false;
529 hw->mac.ops.clear_rar(hw, entry->rar_entry);
535 * If index was zero then we were asked to clear the uc list
536 * for the VF. We're done.
543 list_for_each(pos, &adapter->vf_mvs.l) {
544 entry = list_entry(pos, struct vf_macvlans, l);
550 * If we traversed the entire list and didn't find a free entry
551 * then we're out of space on the RAR table. Also entry may
552 * be NULL because the original memory allocation for the list
553 * failed, which is not fatal but does mean we can't support
554 * VF requests for MACVLAN because we couldn't allocate
555 * memory for the list management required.
557 if (!entry || !entry->free)
561 entry->is_macvlan = true;
563 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
565 hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV);
570 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
572 unsigned char vf_mac_addr[6];
573 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
574 unsigned int vfn = (event_mask & 0x3f);
576 bool enable = ((event_mask & 0x10000000U) != 0);
579 eth_random_addr(vf_mac_addr);
580 e_info(probe, "IOV: VF %d is enabled MAC %pM\n",
583 * Store away the VF "permananet" MAC address, it will ask
586 memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6);
592 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
594 struct ixgbe_hw *hw = &adapter->hw;
595 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
597 u32 reg_offset, vf_shift;
598 u8 *addr = (u8 *)(&msgbuf[1]);
600 e_info(probe, "VF Reset msg received from vf %d\n", vf);
602 /* reset the filters for the device */
603 ixgbe_vf_reset_event(adapter, vf);
605 /* set vf mac address */
606 ixgbe_set_vf_mac(adapter, vf, vf_mac);
609 reg_offset = vf / 32;
611 /* enable transmit for vf */
612 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
613 reg |= 1 << vf_shift;
614 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
616 /* enable receive for vf */
617 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
618 reg |= 1 << vf_shift;
620 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
621 * For more info take a look at ixgbe_set_vf_lpe
623 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
624 struct net_device *dev = adapter->netdev;
625 int pf_max_frame = dev->mtu + ETH_HLEN;
628 if (dev->features & NETIF_F_FCOE_MTU)
629 pf_max_frame = max_t(int, pf_max_frame,
630 IXGBE_FCOE_JUMBO_FRAME_SIZE);
632 #endif /* CONFIG_FCOE */
633 if (pf_max_frame > ETH_FRAME_LEN)
634 reg &= ~(1 << vf_shift);
636 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
638 /* enable VF mailbox for further messages */
639 adapter->vfinfo[vf].clear_to_send = true;
641 /* Enable counting of spoofed packets in the SSVPC register */
642 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
643 reg |= (1 << vf_shift);
644 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
646 /* reply to reset with ack and vf mac address */
647 msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK;
648 memcpy(addr, vf_mac, ETH_ALEN);
651 * Piggyback the multicast filter type so VF can compute the
654 msgbuf[3] = hw->mac.mc_filter_type;
655 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
660 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
663 u8 *new_mac = ((u8 *)(&msgbuf[1]));
665 if (!is_valid_ether_addr(new_mac)) {
666 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
670 if (adapter->vfinfo[vf].pf_set_mac &&
671 memcmp(adapter->vfinfo[vf].vf_mac_addresses, new_mac,
674 "VF %d attempted to override administratively set MAC address\n"
675 "Reload the VF driver to resume operations\n",
680 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
683 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
686 struct ixgbe_hw *hw = &adapter->hw;
687 int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
688 int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
690 u8 tcs = netdev_get_num_tc(adapter->netdev);
692 if (adapter->vfinfo[vf].pf_vlan || tcs) {
694 "VF %d attempted to override administratively set VLAN configuration\n"
695 "Reload the VF driver to resume operations\n",
701 adapter->vfinfo[vf].vlan_count++;
702 else if (adapter->vfinfo[vf].vlan_count)
703 adapter->vfinfo[vf].vlan_count--;
705 err = ixgbe_set_vf_vlan(adapter, add, vid, vf);
706 if (!err && adapter->vfinfo[vf].spoofchk_enabled)
707 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
712 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
715 u8 *new_mac = ((u8 *)(&msgbuf[1]));
716 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
717 IXGBE_VT_MSGINFO_SHIFT;
720 if (adapter->vfinfo[vf].pf_set_mac && index > 0) {
722 "VF %d requested MACVLAN filter but is administratively denied\n",
727 /* An non-zero index indicates the VF is setting a filter */
729 if (!is_valid_ether_addr(new_mac)) {
730 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
735 * If the VF is allowed to set MAC filters then turn off
736 * anti-spoofing to avoid false positives.
738 if (adapter->vfinfo[vf].spoofchk_enabled)
739 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false);
742 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
745 "VF %d has requested a MACVLAN filter but there is no space for it\n",
751 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
757 case ixgbe_mbox_api_10:
758 case ixgbe_mbox_api_11:
759 adapter->vfinfo[vf].vf_api = api;
765 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
770 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
773 struct net_device *dev = adapter->netdev;
774 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
775 unsigned int default_tc = 0;
776 u8 num_tcs = netdev_get_num_tc(dev);
778 /* verify the PF is supporting the correct APIs */
779 switch (adapter->vfinfo[vf].vf_api) {
780 case ixgbe_mbox_api_20:
781 case ixgbe_mbox_api_11:
787 /* only allow 1 Tx queue for bandwidth limiting */
788 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
789 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
791 /* if TCs > 1 determine which TC belongs to default user priority */
793 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
795 /* notify VF of need for VLAN tag stripping, and correct queue */
797 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
798 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
799 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
801 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
803 /* notify VF of default queue */
804 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
809 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
811 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
812 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
813 struct ixgbe_hw *hw = &adapter->hw;
816 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
819 pr_err("Error receiving message from VF\n");
823 /* this is a message we already processed, do nothing */
824 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
827 /* flush the ack before we write any messages back */
828 IXGBE_WRITE_FLUSH(hw);
830 if (msgbuf[0] == IXGBE_VF_RESET)
831 return ixgbe_vf_reset_msg(adapter, vf);
834 * until the vf completes a virtual function reset it should not be
835 * allowed to start any configuration.
837 if (!adapter->vfinfo[vf].clear_to_send) {
838 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
839 ixgbe_write_mbx(hw, msgbuf, 1, vf);
843 switch ((msgbuf[0] & 0xFFFF)) {
844 case IXGBE_VF_SET_MAC_ADDR:
845 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
847 case IXGBE_VF_SET_MULTICAST:
848 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
850 case IXGBE_VF_SET_VLAN:
851 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
853 case IXGBE_VF_SET_LPE:
854 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf);
856 case IXGBE_VF_SET_MACVLAN:
857 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
859 case IXGBE_VF_API_NEGOTIATE:
860 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
862 case IXGBE_VF_GET_QUEUES:
863 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
866 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
867 retval = IXGBE_ERR_MBX;
871 /* notify the VF of the results of what it sent us */
873 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
875 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
877 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
879 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
884 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
886 struct ixgbe_hw *hw = &adapter->hw;
887 u32 msg = IXGBE_VT_MSGTYPE_NACK;
889 /* if device isn't clear to send it shouldn't be reading either */
890 if (!adapter->vfinfo[vf].clear_to_send)
891 ixgbe_write_mbx(hw, &msg, 1, vf);
894 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
896 struct ixgbe_hw *hw = &adapter->hw;
899 for (vf = 0; vf < adapter->num_vfs; vf++) {
900 /* process any reset requests */
901 if (!ixgbe_check_for_rst(hw, vf))
902 ixgbe_vf_reset_event(adapter, vf);
904 /* process any messages pending */
905 if (!ixgbe_check_for_msg(hw, vf))
906 ixgbe_rcv_msg_from_vf(adapter, vf);
908 /* process any acks */
909 if (!ixgbe_check_for_ack(hw, vf))
910 ixgbe_rcv_ack_from_vf(adapter, vf);
914 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
916 struct ixgbe_hw *hw = &adapter->hw;
918 /* disable transmit and receive for all vfs */
919 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
920 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
922 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
923 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
926 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
928 struct ixgbe_hw *hw = &adapter->hw;
932 for (i = 0 ; i < adapter->num_vfs; i++) {
933 ping = IXGBE_PF_CONTROL_MSG;
934 if (adapter->vfinfo[i].clear_to_send)
935 ping |= IXGBE_VT_MSGTYPE_CTS;
936 ixgbe_write_mbx(hw, &ping, 1, i);
940 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
942 struct ixgbe_adapter *adapter = netdev_priv(netdev);
943 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
945 adapter->vfinfo[vf].pf_set_mac = true;
946 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
947 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
948 " change effective.");
949 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
950 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
951 " but the PF device is not up.\n");
952 dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
953 " attempting to use the VF device.\n");
955 return ixgbe_set_vf_mac(adapter, vf, mac);
958 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
961 struct ixgbe_adapter *adapter = netdev_priv(netdev);
962 struct ixgbe_hw *hw = &adapter->hw;
964 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
967 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
970 ixgbe_set_vmvir(adapter, vlan, qos, vf);
971 ixgbe_set_vmolr(hw, vf, false);
972 if (adapter->vfinfo[vf].spoofchk_enabled)
973 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
974 adapter->vfinfo[vf].vlan_count++;
975 adapter->vfinfo[vf].pf_vlan = vlan;
976 adapter->vfinfo[vf].pf_qos = qos;
977 dev_info(&adapter->pdev->dev,
978 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
979 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
980 dev_warn(&adapter->pdev->dev,
981 "The VF VLAN has been set,"
982 " but the PF device is not up.\n");
983 dev_warn(&adapter->pdev->dev,
984 "Bring the PF device up before"
985 " attempting to use the VF device.\n");
988 err = ixgbe_set_vf_vlan(adapter, false,
989 adapter->vfinfo[vf].pf_vlan, vf);
990 ixgbe_clear_vmvir(adapter, vf);
991 ixgbe_set_vmolr(hw, vf, true);
992 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
993 if (adapter->vfinfo[vf].vlan_count)
994 adapter->vfinfo[vf].vlan_count--;
995 adapter->vfinfo[vf].pf_vlan = 0;
996 adapter->vfinfo[vf].pf_qos = 0;
1002 static int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1004 switch (adapter->link_speed) {
1005 case IXGBE_LINK_SPEED_100_FULL:
1007 case IXGBE_LINK_SPEED_1GB_FULL:
1009 case IXGBE_LINK_SPEED_10GB_FULL:
1016 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1018 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1019 struct ixgbe_hw *hw = &adapter->hw;
1021 u16 queue, queues_per_pool;
1022 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1025 /* start with base link speed value */
1026 bcnrc_val = adapter->vf_rate_link_speed;
1028 /* Calculate the rate factor values to set */
1029 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1030 bcnrc_val /= tx_rate;
1032 /* clear everything but the rate factor */
1033 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1034 IXGBE_RTTBCNRC_RF_DEC_MASK;
1036 /* enable the rate scheduler */
1037 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1041 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1042 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1043 * and 0x004 otherwise.
1045 switch (hw->mac.type) {
1046 case ixgbe_mac_82599EB:
1047 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1049 case ixgbe_mac_X540:
1050 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1056 /* determine how many queues per pool based on VMDq mask */
1057 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1059 /* write value for all Tx queues belonging to VF */
1060 for (queue = 0; queue < queues_per_pool; queue++) {
1061 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1063 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1064 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1068 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1072 /* VF Tx rate limit was not set */
1073 if (!adapter->vf_rate_link_speed)
1076 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1077 adapter->vf_rate_link_speed = 0;
1078 dev_info(&adapter->pdev->dev,
1079 "Link speed has been changed. VF Transmit rate is disabled\n");
1082 for (i = 0; i < adapter->num_vfs; i++) {
1083 if (!adapter->vf_rate_link_speed)
1084 adapter->vfinfo[i].tx_rate = 0;
1086 ixgbe_set_vf_rate_limit(adapter, i);
1090 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
1092 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1095 /* verify VF is active */
1096 if (vf >= adapter->num_vfs)
1099 /* verify link is up */
1100 if (!adapter->link_up)
1103 /* verify we are linked at 10Gbps */
1104 link_speed = ixgbe_link_mbps(adapter);
1105 if (link_speed != 10000)
1108 /* rate limit cannot be less than 10Mbs or greater than link speed */
1109 if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed)))
1113 adapter->vf_rate_link_speed = link_speed;
1114 adapter->vfinfo[vf].tx_rate = tx_rate;
1116 /* update hardware configuration */
1117 ixgbe_set_vf_rate_limit(adapter, vf);
1122 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1124 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1125 int vf_target_reg = vf >> 3;
1126 int vf_target_shift = vf % 8;
1127 struct ixgbe_hw *hw = &adapter->hw;
1130 adapter->vfinfo[vf].spoofchk_enabled = setting;
1132 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1133 regval &= ~(1 << vf_target_shift);
1134 regval |= (setting << vf_target_shift);
1135 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1137 if (adapter->vfinfo[vf].vlan_count) {
1138 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT;
1139 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1140 regval &= ~(1 << vf_target_shift);
1141 regval |= (setting << vf_target_shift);
1142 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1148 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1149 int vf, struct ifla_vf_info *ivi)
1151 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1152 if (vf >= adapter->num_vfs)
1155 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1156 ivi->tx_rate = adapter->vfinfo[vf].tx_rate;
1157 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1158 ivi->qos = adapter->vfinfo[vf].pf_qos;
1159 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;