1
2
3
4#include "fm10k.h"
5#include <linux/vmalloc.h>
6#include <net/udp_tunnel.h>
7#include <linux/if_macvlan.h>
8
9
10
11
12
13
14
15int fm10k_setup_tx_resources(struct fm10k_ring *tx_ring)
16{
17 struct device *dev = tx_ring->dev;
18 int size;
19
20 size = sizeof(struct fm10k_tx_buffer) * tx_ring->count;
21
22 tx_ring->tx_buffer = vzalloc(size);
23 if (!tx_ring->tx_buffer)
24 goto err;
25
26 u64_stats_init(&tx_ring->syncp);
27
28
29 tx_ring->size = tx_ring->count * sizeof(struct fm10k_tx_desc);
30 tx_ring->size = ALIGN(tx_ring->size, 4096);
31
32 tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size,
33 &tx_ring->dma, GFP_KERNEL);
34 if (!tx_ring->desc)
35 goto err;
36
37 return 0;
38
39err:
40 vfree(tx_ring->tx_buffer);
41 tx_ring->tx_buffer = NULL;
42 return -ENOMEM;
43}
44
45
46
47
48
49
50
51
52
53
54
55static int fm10k_setup_all_tx_resources(struct fm10k_intfc *interface)
56{
57 int i, err;
58
59 for (i = 0; i < interface->num_tx_queues; i++) {
60 err = fm10k_setup_tx_resources(interface->tx_ring[i]);
61 if (!err)
62 continue;
63
64 netif_err(interface, probe, interface->netdev,
65 "Allocation for Tx Queue %u failed\n", i);
66 goto err_setup_tx;
67 }
68
69 return 0;
70err_setup_tx:
71
72 while (i--)
73 fm10k_free_tx_resources(interface->tx_ring[i]);
74 return err;
75}
76
77
78
79
80
81
82
83int fm10k_setup_rx_resources(struct fm10k_ring *rx_ring)
84{
85 struct device *dev = rx_ring->dev;
86 int size;
87
88 size = sizeof(struct fm10k_rx_buffer) * rx_ring->count;
89
90 rx_ring->rx_buffer = vzalloc(size);
91 if (!rx_ring->rx_buffer)
92 goto err;
93
94 u64_stats_init(&rx_ring->syncp);
95
96
97 rx_ring->size = rx_ring->count * sizeof(union fm10k_rx_desc);
98 rx_ring->size = ALIGN(rx_ring->size, 4096);
99
100 rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size,
101 &rx_ring->dma, GFP_KERNEL);
102 if (!rx_ring->desc)
103 goto err;
104
105 return 0;
106err:
107 vfree(rx_ring->rx_buffer);
108 rx_ring->rx_buffer = NULL;
109 return -ENOMEM;
110}
111
112
113
114
115
116
117
118
119
120
121
122static int fm10k_setup_all_rx_resources(struct fm10k_intfc *interface)
123{
124 int i, err;
125
126 for (i = 0; i < interface->num_rx_queues; i++) {
127 err = fm10k_setup_rx_resources(interface->rx_ring[i]);
128 if (!err)
129 continue;
130
131 netif_err(interface, probe, interface->netdev,
132 "Allocation for Rx Queue %u failed\n", i);
133 goto err_setup_rx;
134 }
135
136 return 0;
137err_setup_rx:
138
139 while (i--)
140 fm10k_free_rx_resources(interface->rx_ring[i]);
141 return err;
142}
143
144void fm10k_unmap_and_free_tx_resource(struct fm10k_ring *ring,
145 struct fm10k_tx_buffer *tx_buffer)
146{
147 if (tx_buffer->skb) {
148 dev_kfree_skb_any(tx_buffer->skb);
149 if (dma_unmap_len(tx_buffer, len))
150 dma_unmap_single(ring->dev,
151 dma_unmap_addr(tx_buffer, dma),
152 dma_unmap_len(tx_buffer, len),
153 DMA_TO_DEVICE);
154 } else if (dma_unmap_len(tx_buffer, len)) {
155 dma_unmap_page(ring->dev,
156 dma_unmap_addr(tx_buffer, dma),
157 dma_unmap_len(tx_buffer, len),
158 DMA_TO_DEVICE);
159 }
160 tx_buffer->next_to_watch = NULL;
161 tx_buffer->skb = NULL;
162 dma_unmap_len_set(tx_buffer, len, 0);
163
164}
165
166
167
168
169
170static void fm10k_clean_tx_ring(struct fm10k_ring *tx_ring)
171{
172 unsigned long size;
173 u16 i;
174
175
176 if (!tx_ring->tx_buffer)
177 return;
178
179
180 for (i = 0; i < tx_ring->count; i++) {
181 struct fm10k_tx_buffer *tx_buffer = &tx_ring->tx_buffer[i];
182
183 fm10k_unmap_and_free_tx_resource(tx_ring, tx_buffer);
184 }
185
186
187 netdev_tx_reset_queue(txring_txq(tx_ring));
188
189 size = sizeof(struct fm10k_tx_buffer) * tx_ring->count;
190 memset(tx_ring->tx_buffer, 0, size);
191
192
193 memset(tx_ring->desc, 0, tx_ring->size);
194}
195
196
197
198
199
200
201
202void fm10k_free_tx_resources(struct fm10k_ring *tx_ring)
203{
204 fm10k_clean_tx_ring(tx_ring);
205
206 vfree(tx_ring->tx_buffer);
207 tx_ring->tx_buffer = NULL;
208
209
210 if (!tx_ring->desc)
211 return;
212
213 dma_free_coherent(tx_ring->dev, tx_ring->size,
214 tx_ring->desc, tx_ring->dma);
215 tx_ring->desc = NULL;
216}
217
218
219
220
221
222void fm10k_clean_all_tx_rings(struct fm10k_intfc *interface)
223{
224 int i;
225
226 for (i = 0; i < interface->num_tx_queues; i++)
227 fm10k_clean_tx_ring(interface->tx_ring[i]);
228}
229
230
231
232
233
234
235
236static void fm10k_free_all_tx_resources(struct fm10k_intfc *interface)
237{
238 int i = interface->num_tx_queues;
239
240 while (i--)
241 fm10k_free_tx_resources(interface->tx_ring[i]);
242}
243
244
245
246
247
248static void fm10k_clean_rx_ring(struct fm10k_ring *rx_ring)
249{
250 unsigned long size;
251 u16 i;
252
253 if (!rx_ring->rx_buffer)
254 return;
255
256 dev_kfree_skb(rx_ring->skb);
257 rx_ring->skb = NULL;
258
259
260 for (i = 0; i < rx_ring->count; i++) {
261 struct fm10k_rx_buffer *buffer = &rx_ring->rx_buffer[i];
262
263 if (!buffer->page)
264 continue;
265
266 dma_unmap_page(rx_ring->dev, buffer->dma,
267 PAGE_SIZE, DMA_FROM_DEVICE);
268 __free_page(buffer->page);
269
270 buffer->page = NULL;
271 }
272
273 size = sizeof(struct fm10k_rx_buffer) * rx_ring->count;
274 memset(rx_ring->rx_buffer, 0, size);
275
276
277 memset(rx_ring->desc, 0, rx_ring->size);
278
279 rx_ring->next_to_alloc = 0;
280 rx_ring->next_to_clean = 0;
281 rx_ring->next_to_use = 0;
282}
283
284
285
286
287
288
289
290void fm10k_free_rx_resources(struct fm10k_ring *rx_ring)
291{
292 fm10k_clean_rx_ring(rx_ring);
293
294 vfree(rx_ring->rx_buffer);
295 rx_ring->rx_buffer = NULL;
296
297
298 if (!rx_ring->desc)
299 return;
300
301 dma_free_coherent(rx_ring->dev, rx_ring->size,
302 rx_ring->desc, rx_ring->dma);
303
304 rx_ring->desc = NULL;
305}
306
307
308
309
310
311void fm10k_clean_all_rx_rings(struct fm10k_intfc *interface)
312{
313 int i;
314
315 for (i = 0; i < interface->num_rx_queues; i++)
316 fm10k_clean_rx_ring(interface->rx_ring[i]);
317}
318
319
320
321
322
323
324
325static void fm10k_free_all_rx_resources(struct fm10k_intfc *interface)
326{
327 int i = interface->num_rx_queues;
328
329 while (i--)
330 fm10k_free_rx_resources(interface->rx_ring[i]);
331}
332
333
334
335
336
337
338
339static void fm10k_request_glort_range(struct fm10k_intfc *interface)
340{
341 struct fm10k_hw *hw = &interface->hw;
342 u16 mask = (~hw->mac.dglort_map) >> FM10K_DGLORTMAP_MASK_SHIFT;
343
344
345 interface->glort = hw->mac.dglort_map & FM10K_DGLORTMAP_NONE;
346 interface->glort_count = 0;
347
348
349 if (hw->mac.dglort_map == FM10K_DGLORTMAP_NONE)
350 return;
351
352
353
354
355
356
357 if (mask <= hw->iov.total_vfs) {
358 interface->glort_count = 1;
359 interface->glort += mask;
360 } else if (mask < 64) {
361 interface->glort_count = (mask + 1) / 2;
362 interface->glort += interface->glort_count;
363 } else {
364 interface->glort_count = mask - 63;
365 interface->glort += 64;
366 }
367}
368
369
370
371
372
373
374
375static void fm10k_restore_udp_port_info(struct fm10k_intfc *interface)
376{
377 struct fm10k_hw *hw = &interface->hw;
378
379
380 if (hw->mac.type != fm10k_mac_pf)
381 return;
382
383
384 fm10k_write_reg(hw, FM10K_TUNNEL_CFG,
385 ntohs(interface->vxlan_port) |
386 (ETH_P_TEB << FM10K_TUNNEL_CFG_NVGRE_SHIFT));
387
388
389 fm10k_write_reg(hw, FM10K_TUNNEL_CFG_GENEVE,
390 ntohs(interface->geneve_port));
391}
392
393
394
395
396
397
398
399
400
401
402static int fm10k_udp_tunnel_sync(struct net_device *dev, unsigned int table)
403{
404 struct fm10k_intfc *interface = netdev_priv(dev);
405 struct udp_tunnel_info ti;
406
407 udp_tunnel_nic_get_port(dev, table, 0, &ti);
408 if (!table)
409 interface->vxlan_port = ti.port;
410 else
411 interface->geneve_port = ti.port;
412
413 fm10k_restore_udp_port_info(interface);
414 return 0;
415}
416
417static const struct udp_tunnel_nic_info fm10k_udp_tunnels = {
418 .sync_table = fm10k_udp_tunnel_sync,
419 .tables = {
420 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },
421 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, },
422 },
423};
424
425
426
427
428
429
430
431
432
433
434
435
436
437int fm10k_open(struct net_device *netdev)
438{
439 struct fm10k_intfc *interface = netdev_priv(netdev);
440 int err;
441
442
443 err = fm10k_setup_all_tx_resources(interface);
444 if (err)
445 goto err_setup_tx;
446
447
448 err = fm10k_setup_all_rx_resources(interface);
449 if (err)
450 goto err_setup_rx;
451
452
453 err = fm10k_qv_request_irq(interface);
454 if (err)
455 goto err_req_irq;
456
457
458 fm10k_request_glort_range(interface);
459
460
461 err = netif_set_real_num_tx_queues(netdev,
462 interface->num_tx_queues);
463 if (err)
464 goto err_set_queues;
465
466 err = netif_set_real_num_rx_queues(netdev,
467 interface->num_rx_queues);
468 if (err)
469 goto err_set_queues;
470
471 fm10k_up(interface);
472
473 return 0;
474
475err_set_queues:
476 fm10k_qv_free_irq(interface);
477err_req_irq:
478 fm10k_free_all_rx_resources(interface);
479err_setup_rx:
480 fm10k_free_all_tx_resources(interface);
481err_setup_tx:
482 return err;
483}
484
485
486
487
488
489
490
491
492
493
494
495
496int fm10k_close(struct net_device *netdev)
497{
498 struct fm10k_intfc *interface = netdev_priv(netdev);
499
500 fm10k_down(interface);
501
502 fm10k_qv_free_irq(interface);
503
504 fm10k_free_all_tx_resources(interface);
505 fm10k_free_all_rx_resources(interface);
506
507 return 0;
508}
509
510static netdev_tx_t fm10k_xmit_frame(struct sk_buff *skb, struct net_device *dev)
511{
512 struct fm10k_intfc *interface = netdev_priv(dev);
513 int num_tx_queues = READ_ONCE(interface->num_tx_queues);
514 unsigned int r_idx = skb->queue_mapping;
515 int err;
516
517 if (!num_tx_queues)
518 return NETDEV_TX_BUSY;
519
520 if ((skb->protocol == htons(ETH_P_8021Q)) &&
521 !skb_vlan_tag_present(skb)) {
522
523
524
525 struct vlan_hdr *vhdr;
526 __be16 proto;
527
528
529 skb = skb_share_check(skb, GFP_ATOMIC);
530 if (!skb)
531 return NETDEV_TX_OK;
532
533
534 if (unlikely(!pskb_may_pull(skb, VLAN_ETH_HLEN)))
535 return NETDEV_TX_OK;
536
537
538 err = skb_cow_head(skb, 0);
539 if (err) {
540 dev_kfree_skb(skb);
541 return NETDEV_TX_OK;
542 }
543
544
545 vhdr = (struct vlan_hdr *)(skb->data + ETH_HLEN);
546
547
548 __vlan_hwaccel_put_tag(skb,
549 htons(ETH_P_8021Q),
550 ntohs(vhdr->h_vlan_TCI));
551 proto = vhdr->h_vlan_encapsulated_proto;
552 skb->protocol = (ntohs(proto) >= 1536) ? proto :
553 htons(ETH_P_802_2);
554
555
556 memmove(skb->data + VLAN_HLEN, skb->data, 12);
557 __skb_pull(skb, VLAN_HLEN);
558 skb_reset_mac_header(skb);
559 }
560
561
562
563
564 if (unlikely(skb->len < 17)) {
565 int pad_len = 17 - skb->len;
566
567 if (skb_pad(skb, pad_len))
568 return NETDEV_TX_OK;
569 __skb_put(skb, pad_len);
570 }
571
572 if (r_idx >= num_tx_queues)
573 r_idx %= num_tx_queues;
574
575 err = fm10k_xmit_frame_ring(skb, interface->tx_ring[r_idx]);
576
577 return err;
578}
579
580
581
582
583
584
585static void fm10k_tx_timeout(struct net_device *netdev, unsigned int txqueue)
586{
587 struct fm10k_intfc *interface = netdev_priv(netdev);
588 struct fm10k_ring *tx_ring;
589 bool real_tx_hang = false;
590
591 if (txqueue >= interface->num_tx_queues) {
592 WARN(1, "invalid Tx queue index %d", txqueue);
593 return;
594 }
595
596 tx_ring = interface->tx_ring[txqueue];
597 if (check_for_tx_hang(tx_ring) && fm10k_check_tx_hang(tx_ring))
598 real_tx_hang = true;
599
600#define TX_TIMEO_LIMIT 16000
601 if (real_tx_hang) {
602 fm10k_tx_timeout_reset(interface);
603 } else {
604 netif_info(interface, drv, netdev,
605 "Fake Tx hang detected with timeout of %d seconds\n",
606 netdev->watchdog_timeo / HZ);
607
608
609 if (netdev->watchdog_timeo < TX_TIMEO_LIMIT)
610 netdev->watchdog_timeo *= 2;
611 }
612}
613
614
615
616
617
618
619
620
621
622
623
624static bool fm10k_host_mbx_ready(struct fm10k_intfc *interface)
625{
626 struct fm10k_hw *hw = &interface->hw;
627
628 return (hw->mac.type == fm10k_mac_vf || interface->host_ready);
629}
630
631
632
633
634
635
636
637
638
639
640
641
642
643int fm10k_queue_vlan_request(struct fm10k_intfc *interface,
644 u32 vid, u8 vsi, bool set)
645{
646 struct fm10k_macvlan_request *request;
647 unsigned long flags;
648
649
650
651
652 request = kzalloc(sizeof(*request), GFP_ATOMIC);
653 if (!request)
654 return -ENOMEM;
655
656 request->type = FM10K_VLAN_REQUEST;
657 request->vlan.vid = vid;
658 request->vlan.vsi = vsi;
659 request->set = set;
660
661 spin_lock_irqsave(&interface->macvlan_lock, flags);
662 list_add_tail(&request->list, &interface->macvlan_requests);
663 spin_unlock_irqrestore(&interface->macvlan_lock, flags);
664
665 fm10k_macvlan_schedule(interface);
666
667 return 0;
668}
669
670
671
672
673
674
675
676
677
678
679
680
681
682int fm10k_queue_mac_request(struct fm10k_intfc *interface, u16 glort,
683 const unsigned char *addr, u16 vid, bool set)
684{
685 struct fm10k_macvlan_request *request;
686 unsigned long flags;
687
688
689
690
691 request = kzalloc(sizeof(*request), GFP_ATOMIC);
692 if (!request)
693 return -ENOMEM;
694
695 if (is_multicast_ether_addr(addr))
696 request->type = FM10K_MC_MAC_REQUEST;
697 else
698 request->type = FM10K_UC_MAC_REQUEST;
699
700 ether_addr_copy(request->mac.addr, addr);
701 request->mac.glort = glort;
702 request->mac.vid = vid;
703 request->set = set;
704
705 spin_lock_irqsave(&interface->macvlan_lock, flags);
706 list_add_tail(&request->list, &interface->macvlan_requests);
707 spin_unlock_irqrestore(&interface->macvlan_lock, flags);
708
709 fm10k_macvlan_schedule(interface);
710
711 return 0;
712}
713
714
715
716
717
718
719
720
721
722
723void fm10k_clear_macvlan_queue(struct fm10k_intfc *interface,
724 u16 glort, bool vlans)
725
726{
727 struct fm10k_macvlan_request *r, *tmp;
728 unsigned long flags;
729
730 spin_lock_irqsave(&interface->macvlan_lock, flags);
731
732
733 list_for_each_entry_safe(r, tmp, &interface->macvlan_requests, list) {
734 switch (r->type) {
735 case FM10K_MC_MAC_REQUEST:
736 case FM10K_UC_MAC_REQUEST:
737
738 if (r->mac.glort != glort)
739 break;
740 fallthrough;
741 case FM10K_VLAN_REQUEST:
742 if (vlans) {
743 list_del(&r->list);
744 kfree(r);
745 }
746 break;
747 }
748 }
749
750 spin_unlock_irqrestore(&interface->macvlan_lock, flags);
751}
752
753static int fm10k_uc_vlan_unsync(struct net_device *netdev,
754 const unsigned char *uc_addr)
755{
756 struct fm10k_intfc *interface = netdev_priv(netdev);
757 u16 glort = interface->glort;
758 u16 vid = interface->vid;
759 bool set = !!(vid / VLAN_N_VID);
760 int err;
761
762
763 vid &= VLAN_N_VID - 1;
764
765 err = fm10k_queue_mac_request(interface, glort, uc_addr, vid, set);
766 if (err)
767 return err;
768
769
770 return 1;
771}
772
773static int fm10k_mc_vlan_unsync(struct net_device *netdev,
774 const unsigned char *mc_addr)
775{
776 struct fm10k_intfc *interface = netdev_priv(netdev);
777 u16 glort = interface->glort;
778 u16 vid = interface->vid;
779 bool set = !!(vid / VLAN_N_VID);
780 int err;
781
782
783 vid &= VLAN_N_VID - 1;
784
785 err = fm10k_queue_mac_request(interface, glort, mc_addr, vid, set);
786 if (err)
787 return err;
788
789
790 return 1;
791}
792
793static int fm10k_update_vid(struct net_device *netdev, u16 vid, bool set)
794{
795 struct fm10k_intfc *interface = netdev_priv(netdev);
796 struct fm10k_l2_accel *l2_accel = interface->l2_accel;
797 struct fm10k_hw *hw = &interface->hw;
798 u16 glort;
799 s32 err;
800 int i;
801
802
803 if (!vid)
804 return 0;
805
806 if (vid >= VLAN_N_VID)
807 return -EINVAL;
808
809
810
811
812
813
814 if (set && hw->mac.vlan_override)
815 return -EACCES;
816
817
818 set_bit(vid, interface->active_vlans);
819 if (!set)
820 clear_bit(vid, interface->active_vlans);
821
822
823 for (i = 0; i < interface->num_rx_queues; i++) {
824 struct fm10k_ring *rx_ring = interface->rx_ring[i];
825 u16 rx_vid = rx_ring->vid & (VLAN_N_VID - 1);
826
827 if (test_bit(rx_vid, interface->active_vlans))
828 rx_ring->vid |= FM10K_VLAN_CLEAR;
829 else
830 rx_ring->vid &= ~FM10K_VLAN_CLEAR;
831 }
832
833
834
835
836 if (hw->mac.vlan_override)
837 return 0;
838
839
840
841
842 if (!set && vid == hw->mac.default_vid)
843 return 0;
844
845
846
847
848 if (test_bit(__FM10K_DOWN, interface->state))
849 return 0;
850
851 fm10k_mbx_lock(interface);
852
853
854 if (!(netdev->flags & IFF_PROMISC)) {
855 err = fm10k_queue_vlan_request(interface, vid, 0, set);
856 if (err)
857 goto err_out;
858 }
859
860
861 err = fm10k_queue_mac_request(interface, interface->glort,
862 hw->mac.addr, vid, set);
863 if (err)
864 goto err_out;
865
866
867 if (l2_accel) {
868 for (i = 0; i < l2_accel->size; i++) {
869 struct net_device *sdev = l2_accel->macvlan[i];
870
871 if (!sdev)
872 continue;
873
874 glort = l2_accel->dglort + 1 + i;
875
876 fm10k_queue_mac_request(interface, glort,
877 sdev->dev_addr,
878 vid, set);
879 }
880 }
881
882
883 interface->vid = vid + (set ? VLAN_N_VID : 0);
884
885
886 __dev_uc_unsync(netdev, fm10k_uc_vlan_unsync);
887 __dev_mc_unsync(netdev, fm10k_mc_vlan_unsync);
888
889err_out:
890 fm10k_mbx_unlock(interface);
891
892 return err;
893}
894
895static int fm10k_vlan_rx_add_vid(struct net_device *netdev,
896 __always_unused __be16 proto, u16 vid)
897{
898
899 return fm10k_update_vid(netdev, vid, true);
900}
901
902static int fm10k_vlan_rx_kill_vid(struct net_device *netdev,
903 __always_unused __be16 proto, u16 vid)
904{
905
906 return fm10k_update_vid(netdev, vid, false);
907}
908
909static u16 fm10k_find_next_vlan(struct fm10k_intfc *interface, u16 vid)
910{
911 struct fm10k_hw *hw = &interface->hw;
912 u16 default_vid = hw->mac.default_vid;
913 u16 vid_limit = vid < default_vid ? default_vid : VLAN_N_VID;
914
915 vid = find_next_bit(interface->active_vlans, vid_limit, ++vid);
916
917 return vid;
918}
919
920static void fm10k_clear_unused_vlans(struct fm10k_intfc *interface)
921{
922 u32 vid, prev_vid;
923
924
925 for (vid = 0, prev_vid = 0;
926 prev_vid < VLAN_N_VID;
927 prev_vid = vid + 1, vid = fm10k_find_next_vlan(interface, vid)) {
928 if (prev_vid == vid)
929 continue;
930
931
932 prev_vid += (vid - prev_vid - 1) << FM10K_VLAN_LENGTH_SHIFT;
933 fm10k_queue_vlan_request(interface, prev_vid, 0, false);
934 }
935}
936
937static int __fm10k_uc_sync(struct net_device *dev,
938 const unsigned char *addr, bool sync)
939{
940 struct fm10k_intfc *interface = netdev_priv(dev);
941 u16 vid, glort = interface->glort;
942 s32 err;
943
944 if (!is_valid_ether_addr(addr))
945 return -EADDRNOTAVAIL;
946
947 for (vid = fm10k_find_next_vlan(interface, 0);
948 vid < VLAN_N_VID;
949 vid = fm10k_find_next_vlan(interface, vid)) {
950 err = fm10k_queue_mac_request(interface, glort,
951 addr, vid, sync);
952 if (err)
953 return err;
954 }
955
956 return 0;
957}
958
959static int fm10k_uc_sync(struct net_device *dev,
960 const unsigned char *addr)
961{
962 return __fm10k_uc_sync(dev, addr, true);
963}
964
965static int fm10k_uc_unsync(struct net_device *dev,
966 const unsigned char *addr)
967{
968 return __fm10k_uc_sync(dev, addr, false);
969}
970
971static int fm10k_set_mac(struct net_device *dev, void *p)
972{
973 struct fm10k_intfc *interface = netdev_priv(dev);
974 struct fm10k_hw *hw = &interface->hw;
975 struct sockaddr *addr = p;
976 s32 err = 0;
977
978 if (!is_valid_ether_addr(addr->sa_data))
979 return -EADDRNOTAVAIL;
980
981 if (dev->flags & IFF_UP) {
982
983 fm10k_mbx_lock(interface);
984
985 err = fm10k_uc_sync(dev, addr->sa_data);
986 if (!err)
987 fm10k_uc_unsync(dev, hw->mac.addr);
988
989 fm10k_mbx_unlock(interface);
990 }
991
992 if (!err) {
993 eth_hw_addr_set(dev, addr->sa_data);
994 ether_addr_copy(hw->mac.addr, addr->sa_data);
995 dev->addr_assign_type &= ~NET_ADDR_RANDOM;
996 }
997
998
999 return err ? -EAGAIN : 0;
1000}
1001
1002static int __fm10k_mc_sync(struct net_device *dev,
1003 const unsigned char *addr, bool sync)
1004{
1005 struct fm10k_intfc *interface = netdev_priv(dev);
1006 u16 vid, glort = interface->glort;
1007 s32 err;
1008
1009 if (!is_multicast_ether_addr(addr))
1010 return -EADDRNOTAVAIL;
1011
1012 for (vid = fm10k_find_next_vlan(interface, 0);
1013 vid < VLAN_N_VID;
1014 vid = fm10k_find_next_vlan(interface, vid)) {
1015 err = fm10k_queue_mac_request(interface, glort,
1016 addr, vid, sync);
1017 if (err)
1018 return err;
1019 }
1020
1021 return 0;
1022}
1023
1024static int fm10k_mc_sync(struct net_device *dev,
1025 const unsigned char *addr)
1026{
1027 return __fm10k_mc_sync(dev, addr, true);
1028}
1029
1030static int fm10k_mc_unsync(struct net_device *dev,
1031 const unsigned char *addr)
1032{
1033 return __fm10k_mc_sync(dev, addr, false);
1034}
1035
1036static void fm10k_set_rx_mode(struct net_device *dev)
1037{
1038 struct fm10k_intfc *interface = netdev_priv(dev);
1039 struct fm10k_hw *hw = &interface->hw;
1040 int xcast_mode;
1041
1042
1043 if (!(dev->flags & IFF_UP))
1044 return;
1045
1046
1047 xcast_mode = (dev->flags & IFF_PROMISC) ? FM10K_XCAST_MODE_PROMISC :
1048 (dev->flags & IFF_ALLMULTI) ? FM10K_XCAST_MODE_ALLMULTI :
1049 (dev->flags & (IFF_BROADCAST | IFF_MULTICAST)) ?
1050 FM10K_XCAST_MODE_MULTI : FM10K_XCAST_MODE_NONE;
1051
1052 fm10k_mbx_lock(interface);
1053
1054
1055 if (interface->xcast_mode != xcast_mode) {
1056
1057 if (xcast_mode == FM10K_XCAST_MODE_PROMISC)
1058 fm10k_queue_vlan_request(interface, FM10K_VLAN_ALL,
1059 0, true);
1060
1061
1062 if (interface->xcast_mode == FM10K_XCAST_MODE_PROMISC)
1063 fm10k_clear_unused_vlans(interface);
1064
1065
1066 if (fm10k_host_mbx_ready(interface))
1067 hw->mac.ops.update_xcast_mode(hw, interface->glort,
1068 xcast_mode);
1069
1070
1071 interface->xcast_mode = xcast_mode;
1072 }
1073
1074
1075 __dev_uc_sync(dev, fm10k_uc_sync, fm10k_uc_unsync);
1076 __dev_mc_sync(dev, fm10k_mc_sync, fm10k_mc_unsync);
1077
1078 fm10k_mbx_unlock(interface);
1079}
1080
1081void fm10k_restore_rx_state(struct fm10k_intfc *interface)
1082{
1083 struct fm10k_l2_accel *l2_accel = interface->l2_accel;
1084 struct net_device *netdev = interface->netdev;
1085 struct fm10k_hw *hw = &interface->hw;
1086 int xcast_mode, i;
1087 u16 vid, glort;
1088
1089
1090 glort = interface->glort;
1091
1092
1093 if (netdev->flags & IFF_PROMISC)
1094 xcast_mode = FM10K_XCAST_MODE_PROMISC;
1095 else if (netdev->flags & IFF_ALLMULTI)
1096 xcast_mode = FM10K_XCAST_MODE_ALLMULTI;
1097 else if (netdev->flags & (IFF_BROADCAST | IFF_MULTICAST))
1098 xcast_mode = FM10K_XCAST_MODE_MULTI;
1099 else
1100 xcast_mode = FM10K_XCAST_MODE_NONE;
1101
1102 fm10k_mbx_lock(interface);
1103
1104
1105 if (fm10k_host_mbx_ready(interface))
1106 hw->mac.ops.update_lport_state(hw, glort,
1107 interface->glort_count, true);
1108
1109
1110 fm10k_queue_vlan_request(interface, FM10K_VLAN_ALL, 0,
1111 xcast_mode == FM10K_XCAST_MODE_PROMISC);
1112
1113
1114 for (vid = fm10k_find_next_vlan(interface, 0);
1115 vid < VLAN_N_VID;
1116 vid = fm10k_find_next_vlan(interface, vid)) {
1117 fm10k_queue_vlan_request(interface, vid, 0, true);
1118
1119 fm10k_queue_mac_request(interface, glort,
1120 hw->mac.addr, vid, true);
1121
1122
1123 if (l2_accel) {
1124 for (i = 0; i < l2_accel->size; i++) {
1125 struct net_device *sdev = l2_accel->macvlan[i];
1126
1127 if (!sdev)
1128 continue;
1129
1130 glort = l2_accel->dglort + 1 + i;
1131
1132 fm10k_queue_mac_request(interface, glort,
1133 sdev->dev_addr,
1134 vid, true);
1135 }
1136 }
1137 }
1138
1139
1140
1141
1142 if (fm10k_host_mbx_ready(interface))
1143 hw->mac.ops.update_xcast_mode(hw, glort, xcast_mode);
1144
1145
1146 __dev_uc_sync(netdev, fm10k_uc_sync, fm10k_uc_unsync);
1147 __dev_mc_sync(netdev, fm10k_mc_sync, fm10k_mc_unsync);
1148
1149
1150 if (l2_accel) {
1151 for (i = 0; i < l2_accel->size; i++) {
1152 struct net_device *sdev = l2_accel->macvlan[i];
1153
1154 if (!sdev)
1155 continue;
1156
1157 glort = l2_accel->dglort + 1 + i;
1158
1159 hw->mac.ops.update_xcast_mode(hw, glort,
1160 FM10K_XCAST_MODE_NONE);
1161 fm10k_queue_mac_request(interface, glort,
1162 sdev->dev_addr,
1163 hw->mac.default_vid, true);
1164 }
1165 }
1166
1167 fm10k_mbx_unlock(interface);
1168
1169
1170 interface->xcast_mode = xcast_mode;
1171
1172
1173 fm10k_restore_udp_port_info(interface);
1174}
1175
1176void fm10k_reset_rx_state(struct fm10k_intfc *interface)
1177{
1178 struct net_device *netdev = interface->netdev;
1179 struct fm10k_hw *hw = &interface->hw;
1180
1181
1182 while (test_bit(__FM10K_MACVLAN_SCHED, interface->state))
1183 usleep_range(1000, 2000);
1184
1185
1186 fm10k_clear_macvlan_queue(interface, interface->glort, true);
1187
1188 fm10k_mbx_lock(interface);
1189
1190
1191
1192
1193 if (fm10k_host_mbx_ready(interface))
1194 hw->mac.ops.update_lport_state(hw, interface->glort,
1195 interface->glort_count, false);
1196
1197 fm10k_mbx_unlock(interface);
1198
1199
1200 interface->xcast_mode = FM10K_XCAST_MODE_NONE;
1201
1202
1203 __dev_uc_unsync(netdev, NULL);
1204 __dev_mc_unsync(netdev, NULL);
1205}
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215static void fm10k_get_stats64(struct net_device *netdev,
1216 struct rtnl_link_stats64 *stats)
1217{
1218 struct fm10k_intfc *interface = netdev_priv(netdev);
1219 struct fm10k_ring *ring;
1220 unsigned int start, i;
1221 u64 bytes, packets;
1222
1223 rcu_read_lock();
1224
1225 for (i = 0; i < interface->num_rx_queues; i++) {
1226 ring = READ_ONCE(interface->rx_ring[i]);
1227
1228 if (!ring)
1229 continue;
1230
1231 do {
1232 start = u64_stats_fetch_begin_irq(&ring->syncp);
1233 packets = ring->stats.packets;
1234 bytes = ring->stats.bytes;
1235 } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
1236
1237 stats->rx_packets += packets;
1238 stats->rx_bytes += bytes;
1239 }
1240
1241 for (i = 0; i < interface->num_tx_queues; i++) {
1242 ring = READ_ONCE(interface->tx_ring[i]);
1243
1244 if (!ring)
1245 continue;
1246
1247 do {
1248 start = u64_stats_fetch_begin_irq(&ring->syncp);
1249 packets = ring->stats.packets;
1250 bytes = ring->stats.bytes;
1251 } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
1252
1253 stats->tx_packets += packets;
1254 stats->tx_bytes += bytes;
1255 }
1256
1257 rcu_read_unlock();
1258
1259
1260 stats->rx_missed_errors = netdev->stats.rx_missed_errors;
1261}
1262
1263int fm10k_setup_tc(struct net_device *dev, u8 tc)
1264{
1265 struct fm10k_intfc *interface = netdev_priv(dev);
1266 int err;
1267
1268
1269 if (tc && (interface->hw.mac.type != fm10k_mac_pf))
1270 return -EINVAL;
1271
1272
1273 if (tc > 8)
1274 return -EINVAL;
1275
1276
1277
1278
1279
1280 if (netif_running(dev))
1281 fm10k_close(dev);
1282
1283 fm10k_mbx_free_irq(interface);
1284
1285 fm10k_clear_queueing_scheme(interface);
1286
1287
1288 netdev_reset_tc(dev);
1289 netdev_set_num_tc(dev, tc);
1290
1291 err = fm10k_init_queueing_scheme(interface);
1292 if (err)
1293 goto err_queueing_scheme;
1294
1295 err = fm10k_mbx_request_irq(interface);
1296 if (err)
1297 goto err_mbx_irq;
1298
1299 err = netif_running(dev) ? fm10k_open(dev) : 0;
1300 if (err)
1301 goto err_open;
1302
1303
1304 set_bit(FM10K_FLAG_SWPRI_CONFIG, interface->flags);
1305
1306 return 0;
1307err_open:
1308 fm10k_mbx_free_irq(interface);
1309err_mbx_irq:
1310 fm10k_clear_queueing_scheme(interface);
1311err_queueing_scheme:
1312 netif_device_detach(dev);
1313
1314 return err;
1315}
1316
1317static int __fm10k_setup_tc(struct net_device *dev, enum tc_setup_type type,
1318 void *type_data)
1319{
1320 struct tc_mqprio_qopt *mqprio = type_data;
1321
1322 if (type != TC_SETUP_QDISC_MQPRIO)
1323 return -EOPNOTSUPP;
1324
1325 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
1326
1327 return fm10k_setup_tc(dev, mqprio->num_tc);
1328}
1329
1330static void fm10k_assign_l2_accel(struct fm10k_intfc *interface,
1331 struct fm10k_l2_accel *l2_accel)
1332{
1333 int i;
1334
1335 for (i = 0; i < interface->num_rx_queues; i++) {
1336 struct fm10k_ring *ring = interface->rx_ring[i];
1337
1338 rcu_assign_pointer(ring->l2_accel, l2_accel);
1339 }
1340
1341 interface->l2_accel = l2_accel;
1342}
1343
1344static void *fm10k_dfwd_add_station(struct net_device *dev,
1345 struct net_device *sdev)
1346{
1347 struct fm10k_intfc *interface = netdev_priv(dev);
1348 struct fm10k_l2_accel *l2_accel = interface->l2_accel;
1349 struct fm10k_l2_accel *old_l2_accel = NULL;
1350 struct fm10k_dglort_cfg dglort = { 0 };
1351 struct fm10k_hw *hw = &interface->hw;
1352 int size, i;
1353 u16 vid, glort;
1354
1355
1356
1357
1358
1359 if (!macvlan_supports_dest_filter(sdev))
1360 return ERR_PTR(-EMEDIUMTYPE);
1361
1362
1363 if (!l2_accel) {
1364
1365 if (interface->glort_count < 7)
1366 return ERR_PTR(-EBUSY);
1367
1368 size = offsetof(struct fm10k_l2_accel, macvlan[7]);
1369 l2_accel = kzalloc(size, GFP_KERNEL);
1370 if (!l2_accel)
1371 return ERR_PTR(-ENOMEM);
1372
1373 l2_accel->size = 7;
1374 l2_accel->dglort = interface->glort;
1375
1376
1377 fm10k_assign_l2_accel(interface, l2_accel);
1378
1379 } else if ((l2_accel->count == FM10K_MAX_STATIONS) ||
1380 (l2_accel->count == (interface->glort_count - 1))) {
1381 return ERR_PTR(-EBUSY);
1382
1383 } else if (l2_accel->count == l2_accel->size) {
1384 old_l2_accel = l2_accel;
1385 size = offsetof(struct fm10k_l2_accel,
1386 macvlan[(l2_accel->size * 2) + 1]);
1387 l2_accel = kzalloc(size, GFP_KERNEL);
1388 if (!l2_accel)
1389 return ERR_PTR(-ENOMEM);
1390
1391 memcpy(l2_accel, old_l2_accel,
1392 offsetof(struct fm10k_l2_accel,
1393 macvlan[old_l2_accel->size]));
1394
1395 l2_accel->size = (old_l2_accel->size * 2) + 1;
1396
1397
1398 fm10k_assign_l2_accel(interface, l2_accel);
1399 kfree_rcu(old_l2_accel, rcu);
1400 }
1401
1402
1403 for (i = 0; i < l2_accel->size; i++) {
1404 if (!l2_accel->macvlan[i])
1405 break;
1406 }
1407
1408
1409 l2_accel->macvlan[i] = sdev;
1410 l2_accel->count++;
1411
1412
1413 dglort.idx = fm10k_dglort_pf_rss;
1414 dglort.inner_rss = 1;
1415 dglort.rss_l = fls(interface->ring_feature[RING_F_RSS].mask);
1416 dglort.pc_l = fls(interface->ring_feature[RING_F_QOS].mask);
1417 dglort.glort = interface->glort;
1418 dglort.shared_l = fls(l2_accel->size);
1419 hw->mac.ops.configure_dglort_map(hw, &dglort);
1420
1421
1422 fm10k_mbx_lock(interface);
1423
1424 glort = l2_accel->dglort + 1 + i;
1425
1426 if (fm10k_host_mbx_ready(interface))
1427 hw->mac.ops.update_xcast_mode(hw, glort,
1428 FM10K_XCAST_MODE_NONE);
1429
1430 fm10k_queue_mac_request(interface, glort, sdev->dev_addr,
1431 hw->mac.default_vid, true);
1432
1433 for (vid = fm10k_find_next_vlan(interface, 0);
1434 vid < VLAN_N_VID;
1435 vid = fm10k_find_next_vlan(interface, vid))
1436 fm10k_queue_mac_request(interface, glort, sdev->dev_addr,
1437 vid, true);
1438
1439 fm10k_mbx_unlock(interface);
1440
1441 return sdev;
1442}
1443
1444static void fm10k_dfwd_del_station(struct net_device *dev, void *priv)
1445{
1446 struct fm10k_intfc *interface = netdev_priv(dev);
1447 struct fm10k_l2_accel *l2_accel = READ_ONCE(interface->l2_accel);
1448 struct fm10k_dglort_cfg dglort = { 0 };
1449 struct fm10k_hw *hw = &interface->hw;
1450 struct net_device *sdev = priv;
1451 u16 vid, glort;
1452 int i;
1453
1454 if (!l2_accel)
1455 return;
1456
1457
1458 for (i = 0; i < l2_accel->size; i++) {
1459 if (l2_accel->macvlan[i] == sdev)
1460 break;
1461 }
1462
1463
1464 if (i == l2_accel->size)
1465 return;
1466
1467
1468 fm10k_mbx_lock(interface);
1469
1470 glort = l2_accel->dglort + 1 + i;
1471
1472 if (fm10k_host_mbx_ready(interface))
1473 hw->mac.ops.update_xcast_mode(hw, glort,
1474 FM10K_XCAST_MODE_NONE);
1475
1476 fm10k_queue_mac_request(interface, glort, sdev->dev_addr,
1477 hw->mac.default_vid, false);
1478
1479 for (vid = fm10k_find_next_vlan(interface, 0);
1480 vid < VLAN_N_VID;
1481 vid = fm10k_find_next_vlan(interface, vid))
1482 fm10k_queue_mac_request(interface, glort, sdev->dev_addr,
1483 vid, false);
1484
1485 fm10k_mbx_unlock(interface);
1486
1487
1488 l2_accel->macvlan[i] = NULL;
1489 l2_accel->count--;
1490
1491
1492 dglort.idx = fm10k_dglort_pf_rss;
1493 dglort.inner_rss = 1;
1494 dglort.rss_l = fls(interface->ring_feature[RING_F_RSS].mask);
1495 dglort.pc_l = fls(interface->ring_feature[RING_F_QOS].mask);
1496 dglort.glort = interface->glort;
1497 dglort.shared_l = fls(l2_accel->size);
1498 hw->mac.ops.configure_dglort_map(hw, &dglort);
1499
1500
1501 if (l2_accel->count == 0) {
1502 fm10k_assign_l2_accel(interface, NULL);
1503 kfree_rcu(l2_accel, rcu);
1504 }
1505}
1506
1507static netdev_features_t fm10k_features_check(struct sk_buff *skb,
1508 struct net_device *dev,
1509 netdev_features_t features)
1510{
1511 if (!skb->encapsulation || fm10k_tx_encap_offload(skb))
1512 return features;
1513
1514 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
1515}
1516
1517static const struct net_device_ops fm10k_netdev_ops = {
1518 .ndo_open = fm10k_open,
1519 .ndo_stop = fm10k_close,
1520 .ndo_validate_addr = eth_validate_addr,
1521 .ndo_start_xmit = fm10k_xmit_frame,
1522 .ndo_set_mac_address = fm10k_set_mac,
1523 .ndo_tx_timeout = fm10k_tx_timeout,
1524 .ndo_vlan_rx_add_vid = fm10k_vlan_rx_add_vid,
1525 .ndo_vlan_rx_kill_vid = fm10k_vlan_rx_kill_vid,
1526 .ndo_set_rx_mode = fm10k_set_rx_mode,
1527 .ndo_get_stats64 = fm10k_get_stats64,
1528 .ndo_setup_tc = __fm10k_setup_tc,
1529 .ndo_set_vf_mac = fm10k_ndo_set_vf_mac,
1530 .ndo_set_vf_vlan = fm10k_ndo_set_vf_vlan,
1531 .ndo_set_vf_rate = fm10k_ndo_set_vf_bw,
1532 .ndo_get_vf_config = fm10k_ndo_get_vf_config,
1533 .ndo_get_vf_stats = fm10k_ndo_get_vf_stats,
1534 .ndo_dfwd_add_station = fm10k_dfwd_add_station,
1535 .ndo_dfwd_del_station = fm10k_dfwd_del_station,
1536 .ndo_features_check = fm10k_features_check,
1537};
1538
1539#define DEFAULT_DEBUG_LEVEL_SHIFT 3
1540
1541struct net_device *fm10k_alloc_netdev(const struct fm10k_info *info)
1542{
1543 netdev_features_t hw_features;
1544 struct fm10k_intfc *interface;
1545 struct net_device *dev;
1546
1547 dev = alloc_etherdev_mq(sizeof(struct fm10k_intfc), MAX_QUEUES);
1548 if (!dev)
1549 return NULL;
1550
1551
1552 dev->netdev_ops = &fm10k_netdev_ops;
1553 fm10k_set_ethtool_ops(dev);
1554
1555
1556 interface = netdev_priv(dev);
1557 interface->msg_enable = BIT(DEFAULT_DEBUG_LEVEL_SHIFT) - 1;
1558
1559
1560 dev->features |= NETIF_F_IP_CSUM |
1561 NETIF_F_IPV6_CSUM |
1562 NETIF_F_SG |
1563 NETIF_F_TSO |
1564 NETIF_F_TSO6 |
1565 NETIF_F_TSO_ECN |
1566 NETIF_F_RXHASH |
1567 NETIF_F_RXCSUM;
1568
1569
1570 if (info->mac == fm10k_mac_pf) {
1571 dev->hw_enc_features = NETIF_F_IP_CSUM |
1572 NETIF_F_TSO |
1573 NETIF_F_TSO6 |
1574 NETIF_F_TSO_ECN |
1575 NETIF_F_GSO_UDP_TUNNEL |
1576 NETIF_F_IPV6_CSUM |
1577 NETIF_F_SG;
1578
1579 dev->features |= NETIF_F_GSO_UDP_TUNNEL;
1580
1581 dev->udp_tunnel_nic_info = &fm10k_udp_tunnels;
1582 }
1583
1584
1585 hw_features = dev->features;
1586
1587
1588 hw_features |= NETIF_F_HW_L2FW_DOFFLOAD;
1589
1590
1591 dev->vlan_features |= dev->features;
1592
1593
1594
1595
1596
1597 dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
1598 NETIF_F_HW_VLAN_CTAG_RX |
1599 NETIF_F_HW_VLAN_CTAG_FILTER;
1600
1601 dev->priv_flags |= IFF_UNICAST_FLT;
1602
1603 dev->hw_features |= hw_features;
1604
1605
1606 dev->min_mtu = ETH_MIN_MTU;
1607 dev->max_mtu = FM10K_MAX_JUMBO_FRAME_SIZE;
1608
1609 return dev;
1610}
1611