1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
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>
34#include <linux/in.h>
35#include <linux/ip.h>
36#include <linux/tcp.h>
37#include <linux/ipv6.h>
38#ifdef NETIF_F_HW_VLAN_CTAG_TX
39#include <linux/if_vlan.h>
40#endif
41
42#include "ixgbe.h"
43#include "ixgbe_type.h"
44#include "ixgbe_sriov.h"
45
46#ifdef CONFIG_PCI_IOV
47static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
48{
49 struct ixgbe_hw *hw = &adapter->hw;
50 int num_vf_macvlans, i;
51 struct vf_macvlans *mv_list;
52
53 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
54 e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs);
55
56
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;
61
62 num_vf_macvlans = hw->mac.num_rar_entries -
63 (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs);
64
65 adapter->mv_list = mv_list = kcalloc(num_vf_macvlans,
66 sizeof(struct vf_macvlans),
67 GFP_KERNEL);
68 if (mv_list) {
69
70 INIT_LIST_HEAD(&adapter->vf_mvs.l);
71 for (i = 0; i < num_vf_macvlans; i++) {
72 mv_list->vf = -1;
73 mv_list->free = true;
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);
77 mv_list++;
78 }
79 }
80
81
82 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
83 adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB;
84
85
86
87
88 adapter->vfinfo =
89 kcalloc(adapter->num_vfs,
90 sizeof(struct vf_data_storage), GFP_KERNEL);
91 if (adapter->vfinfo) {
92
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;
100 } else {
101 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
102 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
103 }
104
105
106 adapter->ring_feature[RING_F_RSS].limit = 1;
107
108
109 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
110 IXGBE_FLAG2_RSC_ENABLED);
111
112
113 for (i = 0; i < adapter->num_vfs; i++)
114 adapter->vfinfo[i].spoofchk_enabled = true;
115 return 0;
116 }
117
118 return -ENOMEM;
119}
120
121
122
123
124void ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
125{
126 int pre_existing_vfs = 0;
127
128 pre_existing_vfs = pci_num_vf(adapter->pdev);
129 if (!pre_existing_vfs && !adapter->num_vfs)
130 return;
131
132
133
134
135
136
137
138 if (pre_existing_vfs) {
139 adapter->num_vfs = pre_existing_vfs;
140 dev_warn(&adapter->pdev->dev,
141 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
142 } else {
143 int err;
144
145
146
147
148
149
150
151 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, 63);
152
153 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
154 if (err) {
155 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
156 adapter->num_vfs = 0;
157 return;
158 }
159 }
160
161 if (!__ixgbe_enable_sriov(adapter))
162 return;
163
164
165
166
167 e_err(probe, "Unable to allocate memory for VF Data Storage - "
168 "SRIOV disabled\n");
169 ixgbe_disable_sriov(adapter);
170}
171
172#endif
173int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
174{
175 struct ixgbe_hw *hw = &adapter->hw;
176 u32 gpie;
177 u32 vmdctl;
178 int rss;
179
180
181 adapter->num_vfs = 0;
182
183
184 kfree(adapter->vfinfo);
185 adapter->vfinfo = NULL;
186
187
188 kfree(adapter->mv_list);
189 adapter->mv_list = NULL;
190
191
192 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
193 return 0;
194
195#ifdef CONFIG_PCI_IOV
196
197
198
199
200
201 if (pci_vfs_assigned(adapter->pdev)) {
202 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
203 return -EPERM;
204 }
205
206 pci_disable_sriov(adapter->pdev);
207#endif
208
209
210 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0);
211 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
212 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
213 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
214
215
216 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
217 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
218 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
219 IXGBE_WRITE_FLUSH(hw);
220
221
222 if (adapter->ring_feature[RING_F_VMDQ].limit == 1) {
223 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
224 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
225 rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus());
226 } else {
227 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
228 }
229
230 adapter->ring_feature[RING_F_VMDQ].offset = 0;
231 adapter->ring_feature[RING_F_RSS].limit = rss;
232
233
234 msleep(100);
235 return 0;
236}
237
238static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
239{
240#ifdef CONFIG_PCI_IOV
241 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
242 int err = 0;
243 int i;
244 int pre_existing_vfs = pci_num_vf(dev);
245
246 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
247 err = ixgbe_disable_sriov(adapter);
248 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
249 goto out;
250
251 if (err)
252 goto err_out;
253
254
255
256
257
258
259
260 if (num_vfs > 63) {
261 err = -EPERM;
262 goto err_out;
263 }
264
265 adapter->num_vfs = num_vfs;
266
267 err = __ixgbe_enable_sriov(adapter);
268 if (err)
269 goto err_out;
270
271 for (i = 0; i < adapter->num_vfs; i++)
272 ixgbe_vf_configuration(dev, (i | 0x10000000));
273
274 err = pci_enable_sriov(dev, num_vfs);
275 if (err) {
276 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
277 goto err_out;
278 }
279 ixgbe_sriov_reinit(adapter);
280
281out:
282 return num_vfs;
283
284err_out:
285 return err;
286#endif
287 return 0;
288}
289
290static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
291{
292 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
293 int err;
294#ifdef CONFIG_PCI_IOV
295 u32 current_flags = adapter->flags;
296#endif
297
298 err = ixgbe_disable_sriov(adapter);
299
300
301#ifdef CONFIG_PCI_IOV
302 if (!err && current_flags != adapter->flags)
303 ixgbe_sriov_reinit(adapter);
304#endif
305
306 return err;
307}
308
309int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
310{
311 if (num_vfs == 0)
312 return ixgbe_pci_sriov_disable(dev);
313 else
314 return ixgbe_pci_sriov_enable(dev, num_vfs);
315}
316
317static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
318 u32 *msgbuf, u32 vf)
319{
320 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
321 >> IXGBE_VT_MSGINFO_SHIFT;
322 u16 *hash_list = (u16 *)&msgbuf[1];
323 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
324 struct ixgbe_hw *hw = &adapter->hw;
325 int i;
326 u32 vector_bit;
327 u32 vector_reg;
328 u32 mta_reg;
329
330
331 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
332
333
334
335
336
337
338 vfinfo->num_vf_mc_hashes = entries;
339
340
341
342
343
344 for (i = 0; i < entries; i++) {
345 vfinfo->vf_mc_hashes[i] = hash_list[i];
346 }
347
348 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
349 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
350 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
351 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
352 mta_reg |= (1 << vector_bit);
353 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
354 }
355
356 return 0;
357}
358
359static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter)
360{
361 struct ixgbe_hw *hw = &adapter->hw;
362 struct list_head *pos;
363 struct vf_macvlans *entry;
364
365 list_for_each(pos, &adapter->vf_mvs.l) {
366 entry = list_entry(pos, struct vf_macvlans, l);
367 if (!entry->free)
368 hw->mac.ops.set_rar(hw, entry->rar_entry,
369 entry->vf_macvlan,
370 entry->vf, IXGBE_RAH_AV);
371 }
372}
373
374void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
375{
376 struct ixgbe_hw *hw = &adapter->hw;
377 struct vf_data_storage *vfinfo;
378 int i, j;
379 u32 vector_bit;
380 u32 vector_reg;
381 u32 mta_reg;
382
383 for (i = 0; i < adapter->num_vfs; i++) {
384 vfinfo = &adapter->vfinfo[i];
385 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
386 hw->addr_ctrl.mta_in_use++;
387 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
388 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
389 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
390 mta_reg |= (1 << vector_bit);
391 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
392 }
393 }
394
395
396 ixgbe_restore_vf_macvlans(adapter);
397}
398
399static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
400 u32 vf)
401{
402
403 if (!vid && !add)
404 return 0;
405
406 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
407}
408
409static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
410{
411 struct ixgbe_hw *hw = &adapter->hw;
412 int max_frame = msgbuf[1];
413 u32 max_frs;
414
415
416
417
418
419
420
421
422 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
423 struct net_device *dev = adapter->netdev;
424 int pf_max_frame = dev->mtu + ETH_HLEN;
425 u32 reg_offset, vf_shift, vfre;
426 s32 err = 0;
427
428#ifdef CONFIG_FCOE
429 if (dev->features & NETIF_F_FCOE_MTU)
430 pf_max_frame = max_t(int, pf_max_frame,
431 IXGBE_FCOE_JUMBO_FRAME_SIZE);
432
433#endif
434 switch (adapter->vfinfo[vf].vf_api) {
435 case ixgbe_mbox_api_11:
436
437
438
439
440
441 if (pf_max_frame > ETH_FRAME_LEN)
442 break;
443 default:
444
445
446
447
448
449 if ((pf_max_frame > ETH_FRAME_LEN) ||
450 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
451 err = -EINVAL;
452 break;
453 }
454
455
456 vf_shift = vf % 32;
457 reg_offset = vf / 32;
458
459
460 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
461 if (err)
462 vfre &= ~(1 << vf_shift);
463 else
464 vfre |= 1 << vf_shift;
465 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
466
467 if (err) {
468 e_err(drv, "VF max_frame %d out of range\n", max_frame);
469 return err;
470 }
471 }
472
473
474 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
475 e_err(drv, "VF max_frame %d out of range\n", max_frame);
476 return -EINVAL;
477 }
478
479
480 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
481 max_frs &= IXGBE_MHADD_MFS_MASK;
482 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
483
484 if (max_frs < max_frame) {
485 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
486 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
487 }
488
489 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
490
491 return 0;
492}
493
494static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
495{
496 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
497 vmolr |= (IXGBE_VMOLR_ROMPE |
498 IXGBE_VMOLR_BAM);
499 if (aupe)
500 vmolr |= IXGBE_VMOLR_AUPE;
501 else
502 vmolr &= ~IXGBE_VMOLR_AUPE;
503 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
504}
505
506static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
507{
508 struct ixgbe_hw *hw = &adapter->hw;
509
510 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
511}
512static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
513{
514 struct ixgbe_hw *hw = &adapter->hw;
515 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
516 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
517 u8 num_tcs = netdev_get_num_tc(adapter->netdev);
518
519
520 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
521
522
523 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
524
525
526 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
527 ixgbe_clear_vmvir(adapter, vf);
528 } else {
529 if (vfinfo->pf_qos || !num_tcs)
530 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
531 vfinfo->pf_qos, vf);
532 else
533 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
534 adapter->default_up, vf);
535
536 if (vfinfo->spoofchk_enabled)
537 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
538 }
539
540
541 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
542
543
544 ixgbe_set_rx_mode(adapter->netdev);
545
546 hw->mac.ops.clear_rar(hw, rar_entry);
547
548
549 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
550}
551
552static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
553 int vf, unsigned char *mac_addr)
554{
555 struct ixgbe_hw *hw = &adapter->hw;
556 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
557
558 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN);
559 hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
560
561 return 0;
562}
563
564static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
565 int vf, int index, unsigned char *mac_addr)
566{
567 struct ixgbe_hw *hw = &adapter->hw;
568 struct list_head *pos;
569 struct vf_macvlans *entry;
570
571 if (index <= 1) {
572 list_for_each(pos, &adapter->vf_mvs.l) {
573 entry = list_entry(pos, struct vf_macvlans, l);
574 if (entry->vf == vf) {
575 entry->vf = -1;
576 entry->free = true;
577 entry->is_macvlan = false;
578 hw->mac.ops.clear_rar(hw, entry->rar_entry);
579 }
580 }
581 }
582
583
584
585
586
587 if (!index)
588 return 0;
589
590 entry = NULL;
591
592 list_for_each(pos, &adapter->vf_mvs.l) {
593 entry = list_entry(pos, struct vf_macvlans, l);
594 if (entry->free)
595 break;
596 }
597
598
599
600
601
602
603
604
605
606 if (!entry || !entry->free)
607 return -ENOSPC;
608
609 entry->free = false;
610 entry->is_macvlan = true;
611 entry->vf = vf;
612 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
613
614 hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV);
615
616 return 0;
617}
618
619int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
620{
621 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
622 unsigned int vfn = (event_mask & 0x3f);
623
624 bool enable = ((event_mask & 0x10000000U) != 0);
625
626 if (enable)
627 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
628
629 return 0;
630}
631
632static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
633{
634 struct ixgbe_hw *hw = &adapter->hw;
635 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
636 u32 reg, reg_offset, vf_shift;
637 u32 msgbuf[4] = {0, 0, 0, 0};
638 u8 *addr = (u8 *)(&msgbuf[1]);
639
640 e_info(probe, "VF Reset msg received from vf %d\n", vf);
641
642
643 ixgbe_vf_reset_event(adapter, vf);
644
645
646 if (!is_zero_ether_addr(vf_mac))
647 ixgbe_set_vf_mac(adapter, vf, vf_mac);
648
649 vf_shift = vf % 32;
650 reg_offset = vf / 32;
651
652
653 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
654 reg |= 1 << vf_shift;
655 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
656
657
658 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
659 reg |= 1 << vf_shift;
660
661
662
663
664 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
665 struct net_device *dev = adapter->netdev;
666 int pf_max_frame = dev->mtu + ETH_HLEN;
667
668#ifdef CONFIG_FCOE
669 if (dev->features & NETIF_F_FCOE_MTU)
670 pf_max_frame = max_t(int, pf_max_frame,
671 IXGBE_FCOE_JUMBO_FRAME_SIZE);
672
673#endif
674 if (pf_max_frame > ETH_FRAME_LEN)
675 reg &= ~(1 << vf_shift);
676 }
677 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
678
679
680 adapter->vfinfo[vf].clear_to_send = true;
681
682
683 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
684 reg |= (1 << vf_shift);
685 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
686
687
688 msgbuf[0] = IXGBE_VF_RESET;
689 if (!is_zero_ether_addr(vf_mac)) {
690 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
691 memcpy(addr, vf_mac, ETH_ALEN);
692 } else {
693 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
694 dev_warn(&adapter->pdev->dev,
695 "VF %d has no MAC address assigned, you may have to assign one manually\n",
696 vf);
697 }
698
699
700
701
702
703 msgbuf[3] = hw->mac.mc_filter_type;
704 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
705
706 return 0;
707}
708
709static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
710 u32 *msgbuf, u32 vf)
711{
712 u8 *new_mac = ((u8 *)(&msgbuf[1]));
713
714 if (!is_valid_ether_addr(new_mac)) {
715 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
716 return -1;
717 }
718
719 if (adapter->vfinfo[vf].pf_set_mac &&
720 memcmp(adapter->vfinfo[vf].vf_mac_addresses, new_mac,
721 ETH_ALEN)) {
722 e_warn(drv,
723 "VF %d attempted to override administratively set MAC address\n"
724 "Reload the VF driver to resume operations\n",
725 vf);
726 return -1;
727 }
728
729 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
730}
731
732static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan)
733{
734 u32 vlvf;
735 s32 regindex;
736
737
738 if (vlan == 0)
739 return 0;
740
741
742 for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) {
743 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex));
744 if ((vlvf & VLAN_VID_MASK) == vlan)
745 break;
746 }
747
748
749 if (regindex >= IXGBE_VLVF_ENTRIES)
750 regindex = -1;
751
752 return regindex;
753}
754
755static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
756 u32 *msgbuf, u32 vf)
757{
758 struct ixgbe_hw *hw = &adapter->hw;
759 int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
760 int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
761 int err;
762 s32 reg_ndx;
763 u32 vlvf;
764 u32 bits;
765 u8 tcs = netdev_get_num_tc(adapter->netdev);
766
767 if (adapter->vfinfo[vf].pf_vlan || tcs) {
768 e_warn(drv,
769 "VF %d attempted to override administratively set VLAN configuration\n"
770 "Reload the VF driver to resume operations\n",
771 vf);
772 return -1;
773 }
774
775 if (add)
776 adapter->vfinfo[vf].vlan_count++;
777 else if (adapter->vfinfo[vf].vlan_count)
778 adapter->vfinfo[vf].vlan_count--;
779
780
781
782
783 if (add && adapter->netdev->flags & IFF_PROMISC)
784 err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0));
785
786 err = ixgbe_set_vf_vlan(adapter, add, vid, vf);
787 if (!err && adapter->vfinfo[vf].spoofchk_enabled)
788 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
789
790
791
792
793 if (!add && adapter->netdev->flags & IFF_PROMISC) {
794 reg_ndx = ixgbe_find_vlvf_entry(hw, vid);
795 if (reg_ndx < 0)
796 goto out;
797 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx));
798
799
800
801 if (VMDQ_P(0) < 32) {
802 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2));
803 bits &= ~(1 << VMDQ_P(0));
804 bits |= IXGBE_READ_REG(hw,
805 IXGBE_VLVFB(reg_ndx * 2) + 1);
806 } else {
807 bits = IXGBE_READ_REG(hw,
808 IXGBE_VLVFB(reg_ndx * 2) + 1);
809 bits &= ~(1 << (VMDQ_P(0) - 32));
810 bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2));
811 }
812
813
814
815
816
817 if ((vlvf & VLAN_VID_MASK) == vid &&
818 !test_bit(vid, adapter->active_vlans) && !bits)
819 ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0));
820 }
821
822out:
823
824 return err;
825}
826
827static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
828 u32 *msgbuf, u32 vf)
829{
830 u8 *new_mac = ((u8 *)(&msgbuf[1]));
831 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
832 IXGBE_VT_MSGINFO_SHIFT;
833 int err;
834
835 if (adapter->vfinfo[vf].pf_set_mac && index > 0) {
836 e_warn(drv,
837 "VF %d requested MACVLAN filter but is administratively denied\n",
838 vf);
839 return -1;
840 }
841
842
843 if (index) {
844 if (!is_valid_ether_addr(new_mac)) {
845 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
846 return -1;
847 }
848
849
850
851
852
853 if (adapter->vfinfo[vf].spoofchk_enabled)
854 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false);
855 }
856
857 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
858 if (err == -ENOSPC)
859 e_warn(drv,
860 "VF %d has requested a MACVLAN filter but there is no space for it\n",
861 vf);
862
863 return err < 0;
864}
865
866static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
867 u32 *msgbuf, u32 vf)
868{
869 int api = msgbuf[1];
870
871 switch (api) {
872 case ixgbe_mbox_api_10:
873 case ixgbe_mbox_api_11:
874 adapter->vfinfo[vf].vf_api = api;
875 return 0;
876 default:
877 break;
878 }
879
880 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
881
882 return -1;
883}
884
885static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
886 u32 *msgbuf, u32 vf)
887{
888 struct net_device *dev = adapter->netdev;
889 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
890 unsigned int default_tc = 0;
891 u8 num_tcs = netdev_get_num_tc(dev);
892
893
894 switch (adapter->vfinfo[vf].vf_api) {
895 case ixgbe_mbox_api_20:
896 case ixgbe_mbox_api_11:
897 break;
898 default:
899 return -1;
900 }
901
902
903 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
904 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
905
906
907 if (num_tcs > 1)
908 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
909
910
911 if (num_tcs)
912 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
913 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
914 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
915 else
916 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
917
918
919 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
920
921 return 0;
922}
923
924static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
925{
926 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
927 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
928 struct ixgbe_hw *hw = &adapter->hw;
929 s32 retval;
930
931 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
932
933 if (retval) {
934 pr_err("Error receiving message from VF\n");
935 return retval;
936 }
937
938
939 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
940 return retval;
941
942
943 IXGBE_WRITE_FLUSH(hw);
944
945 if (msgbuf[0] == IXGBE_VF_RESET)
946 return ixgbe_vf_reset_msg(adapter, vf);
947
948
949
950
951
952 if (!adapter->vfinfo[vf].clear_to_send) {
953 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
954 ixgbe_write_mbx(hw, msgbuf, 1, vf);
955 return retval;
956 }
957
958 switch ((msgbuf[0] & 0xFFFF)) {
959 case IXGBE_VF_SET_MAC_ADDR:
960 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
961 break;
962 case IXGBE_VF_SET_MULTICAST:
963 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
964 break;
965 case IXGBE_VF_SET_VLAN:
966 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
967 break;
968 case IXGBE_VF_SET_LPE:
969 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf);
970 break;
971 case IXGBE_VF_SET_MACVLAN:
972 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
973 break;
974 case IXGBE_VF_API_NEGOTIATE:
975 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
976 break;
977 case IXGBE_VF_GET_QUEUES:
978 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
979 break;
980 default:
981 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
982 retval = IXGBE_ERR_MBX;
983 break;
984 }
985
986
987 if (retval)
988 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
989 else
990 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
991
992 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
993
994 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
995
996 return retval;
997}
998
999static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1000{
1001 struct ixgbe_hw *hw = &adapter->hw;
1002 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1003
1004
1005 if (!adapter->vfinfo[vf].clear_to_send)
1006 ixgbe_write_mbx(hw, &msg, 1, vf);
1007}
1008
1009void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1010{
1011 struct ixgbe_hw *hw = &adapter->hw;
1012 u32 vf;
1013
1014 for (vf = 0; vf < adapter->num_vfs; vf++) {
1015
1016 if (!ixgbe_check_for_rst(hw, vf))
1017 ixgbe_vf_reset_event(adapter, vf);
1018
1019
1020 if (!ixgbe_check_for_msg(hw, vf))
1021 ixgbe_rcv_msg_from_vf(adapter, vf);
1022
1023
1024 if (!ixgbe_check_for_ack(hw, vf))
1025 ixgbe_rcv_ack_from_vf(adapter, vf);
1026 }
1027}
1028
1029void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
1030{
1031 struct ixgbe_hw *hw = &adapter->hw;
1032
1033
1034 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
1035 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
1036
1037 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
1038 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
1039}
1040
1041void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1042{
1043 struct ixgbe_hw *hw = &adapter->hw;
1044 u32 ping;
1045 int i;
1046
1047 for (i = 0 ; i < adapter->num_vfs; i++) {
1048 ping = IXGBE_PF_CONTROL_MSG;
1049 if (adapter->vfinfo[i].clear_to_send)
1050 ping |= IXGBE_VT_MSGTYPE_CTS;
1051 ixgbe_write_mbx(hw, &ping, 1, i);
1052 }
1053}
1054
1055int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1056{
1057 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1058 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
1059 return -EINVAL;
1060 adapter->vfinfo[vf].pf_set_mac = true;
1061 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
1062 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
1063 " change effective.");
1064 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1065 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
1066 " but the PF device is not up.\n");
1067 dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
1068 " attempting to use the VF device.\n");
1069 }
1070 return ixgbe_set_vf_mac(adapter, vf, mac);
1071}
1072
1073int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
1074{
1075 int err = 0;
1076 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1077 struct ixgbe_hw *hw = &adapter->hw;
1078
1079 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1080 return -EINVAL;
1081 if (vlan || qos) {
1082 if (adapter->vfinfo[vf].pf_vlan)
1083 err = ixgbe_set_vf_vlan(adapter, false,
1084 adapter->vfinfo[vf].pf_vlan,
1085 vf);
1086 if (err)
1087 goto out;
1088 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1089 if (err)
1090 goto out;
1091 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1092 ixgbe_set_vmolr(hw, vf, false);
1093 if (adapter->vfinfo[vf].spoofchk_enabled)
1094 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
1095 adapter->vfinfo[vf].vlan_count++;
1096 adapter->vfinfo[vf].pf_vlan = vlan;
1097 adapter->vfinfo[vf].pf_qos = qos;
1098 dev_info(&adapter->pdev->dev,
1099 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1100 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1101 dev_warn(&adapter->pdev->dev,
1102 "The VF VLAN has been set,"
1103 " but the PF device is not up.\n");
1104 dev_warn(&adapter->pdev->dev,
1105 "Bring the PF device up before"
1106 " attempting to use the VF device.\n");
1107 }
1108 } else {
1109 err = ixgbe_set_vf_vlan(adapter, false,
1110 adapter->vfinfo[vf].pf_vlan, vf);
1111 ixgbe_clear_vmvir(adapter, vf);
1112 ixgbe_set_vmolr(hw, vf, true);
1113 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1114 if (adapter->vfinfo[vf].vlan_count)
1115 adapter->vfinfo[vf].vlan_count--;
1116 adapter->vfinfo[vf].pf_vlan = 0;
1117 adapter->vfinfo[vf].pf_qos = 0;
1118 }
1119out:
1120 return err;
1121}
1122
1123static int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1124{
1125 switch (adapter->link_speed) {
1126 case IXGBE_LINK_SPEED_100_FULL:
1127 return 100;
1128 case IXGBE_LINK_SPEED_1GB_FULL:
1129 return 1000;
1130 case IXGBE_LINK_SPEED_10GB_FULL:
1131 return 10000;
1132 default:
1133 return 0;
1134 }
1135}
1136
1137static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1138{
1139 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1140 struct ixgbe_hw *hw = &adapter->hw;
1141 u32 bcnrc_val = 0;
1142 u16 queue, queues_per_pool;
1143 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1144
1145 if (tx_rate) {
1146
1147 bcnrc_val = adapter->vf_rate_link_speed;
1148
1149
1150 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1151 bcnrc_val /= tx_rate;
1152
1153
1154 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1155 IXGBE_RTTBCNRC_RF_DEC_MASK;
1156
1157
1158 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1159 }
1160
1161
1162
1163
1164
1165
1166 switch (hw->mac.type) {
1167 case ixgbe_mac_82599EB:
1168 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1169 break;
1170 case ixgbe_mac_X540:
1171 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1172 break;
1173 default:
1174 break;
1175 }
1176
1177
1178 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1179
1180
1181 for (queue = 0; queue < queues_per_pool; queue++) {
1182 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1183
1184 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1185 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1186 }
1187}
1188
1189void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1190{
1191 int i;
1192
1193
1194 if (!adapter->vf_rate_link_speed)
1195 return;
1196
1197 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1198 adapter->vf_rate_link_speed = 0;
1199 dev_info(&adapter->pdev->dev,
1200 "Link speed has been changed. VF Transmit rate is disabled\n");
1201 }
1202
1203 for (i = 0; i < adapter->num_vfs; i++) {
1204 if (!adapter->vf_rate_link_speed)
1205 adapter->vfinfo[i].tx_rate = 0;
1206
1207 ixgbe_set_vf_rate_limit(adapter, i);
1208 }
1209}
1210
1211int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
1212{
1213 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1214 int link_speed;
1215
1216
1217 if (vf >= adapter->num_vfs)
1218 return -EINVAL;
1219
1220
1221 if (!adapter->link_up)
1222 return -EINVAL;
1223
1224
1225 link_speed = ixgbe_link_mbps(adapter);
1226 if (link_speed != 10000)
1227 return -EINVAL;
1228
1229
1230 if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed)))
1231 return -EINVAL;
1232
1233
1234 adapter->vf_rate_link_speed = link_speed;
1235 adapter->vfinfo[vf].tx_rate = tx_rate;
1236
1237
1238 ixgbe_set_vf_rate_limit(adapter, vf);
1239
1240 return 0;
1241}
1242
1243int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1244{
1245 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1246 int vf_target_reg = vf >> 3;
1247 int vf_target_shift = vf % 8;
1248 struct ixgbe_hw *hw = &adapter->hw;
1249 u32 regval;
1250
1251 adapter->vfinfo[vf].spoofchk_enabled = setting;
1252
1253 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1254 regval &= ~(1 << vf_target_shift);
1255 regval |= (setting << vf_target_shift);
1256 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1257
1258 if (adapter->vfinfo[vf].vlan_count) {
1259 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT;
1260 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1261 regval &= ~(1 << vf_target_shift);
1262 regval |= (setting << vf_target_shift);
1263 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1264 }
1265
1266 return 0;
1267}
1268
1269int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1270 int vf, struct ifla_vf_info *ivi)
1271{
1272 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1273 if (vf >= adapter->num_vfs)
1274 return -EINVAL;
1275 ivi->vf = vf;
1276 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1277 ivi->tx_rate = adapter->vfinfo[vf].tx_rate;
1278 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1279 ivi->qos = adapter->vfinfo[vf].pf_qos;
1280 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1281 return 0;
1282}
1283