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16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/moduleparam.h>
19#include <linux/pci.h>
20#include <linux/device.h>
21#include <linux/errno.h>
22#include <linux/types.h>
23#include <linux/etherdevice.h>
24#include <linux/netdevice.h>
25#include <linux/slab.h>
26#include <linux/if_vlan.h>
27#include <linux/semaphore.h>
28#include <linux/workqueue.h>
29#include <net/ip.h>
30#include <linux/bitops.h>
31#include <linux/bitmap.h>
32#include <linux/delay.h>
33#include <linux/err.h>
34
35#include "hinic_hw_qp.h"
36#include "hinic_hw_dev.h"
37#include "hinic_port.h"
38#include "hinic_tx.h"
39#include "hinic_rx.h"
40#include "hinic_dev.h"
41
42MODULE_AUTHOR("Huawei Technologies CO., Ltd");
43MODULE_DESCRIPTION("Huawei Intelligent NIC driver");
44MODULE_LICENSE("GPL");
45
46static unsigned int tx_weight = 64;
47module_param(tx_weight, uint, 0644);
48MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)");
49
50static unsigned int rx_weight = 64;
51module_param(rx_weight, uint, 0644);
52MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)");
53
54#define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822
55#define HINIC_DEV_ID_DUAL_PORT_100GE 0x0200
56#define HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ 0x0205
57#define HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ 0x0210
58
59#define HINIC_WQ_NAME "hinic_dev"
60
61#define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \
62 NETIF_MSG_IFUP | \
63 NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR)
64
65#define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8)
66
67#define work_to_rx_mode_work(work) \
68 container_of(work, struct hinic_rx_mode_work, work)
69
70#define rx_mode_work_to_nic_dev(rx_mode_work) \
71 container_of(rx_mode_work, struct hinic_dev, rx_mode_work)
72
73static int change_mac_addr(struct net_device *netdev, const u8 *addr);
74
75static void set_link_speed(struct ethtool_link_ksettings *link_ksettings,
76 enum hinic_speed speed)
77{
78 switch (speed) {
79 case HINIC_SPEED_10MB_LINK:
80 link_ksettings->base.speed = SPEED_10;
81 break;
82
83 case HINIC_SPEED_100MB_LINK:
84 link_ksettings->base.speed = SPEED_100;
85 break;
86
87 case HINIC_SPEED_1000MB_LINK:
88 link_ksettings->base.speed = SPEED_1000;
89 break;
90
91 case HINIC_SPEED_10GB_LINK:
92 link_ksettings->base.speed = SPEED_10000;
93 break;
94
95 case HINIC_SPEED_25GB_LINK:
96 link_ksettings->base.speed = SPEED_25000;
97 break;
98
99 case HINIC_SPEED_40GB_LINK:
100 link_ksettings->base.speed = SPEED_40000;
101 break;
102
103 case HINIC_SPEED_100GB_LINK:
104 link_ksettings->base.speed = SPEED_100000;
105 break;
106
107 default:
108 link_ksettings->base.speed = SPEED_UNKNOWN;
109 break;
110 }
111}
112
113static int hinic_get_link_ksettings(struct net_device *netdev,
114 struct ethtool_link_ksettings
115 *link_ksettings)
116{
117 struct hinic_dev *nic_dev = netdev_priv(netdev);
118 enum hinic_port_link_state link_state;
119 struct hinic_port_cap port_cap;
120 int err;
121
122 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
123 ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
124 Autoneg);
125
126 link_ksettings->base.speed = SPEED_UNKNOWN;
127 link_ksettings->base.autoneg = AUTONEG_DISABLE;
128 link_ksettings->base.duplex = DUPLEX_UNKNOWN;
129
130 err = hinic_port_get_cap(nic_dev, &port_cap);
131 if (err) {
132 netif_err(nic_dev, drv, netdev,
133 "Failed to get port capabilities\n");
134 return err;
135 }
136
137 err = hinic_port_link_state(nic_dev, &link_state);
138 if (err) {
139 netif_err(nic_dev, drv, netdev,
140 "Failed to get port link state\n");
141 return err;
142 }
143
144 if (link_state != HINIC_LINK_STATE_UP) {
145 netif_info(nic_dev, drv, netdev, "No link\n");
146 return err;
147 }
148
149 set_link_speed(link_ksettings, port_cap.speed);
150
151 if (!!(port_cap.autoneg_cap & HINIC_AUTONEG_SUPPORTED))
152 ethtool_link_ksettings_add_link_mode(link_ksettings,
153 advertising, Autoneg);
154
155 if (port_cap.autoneg_state == HINIC_AUTONEG_ACTIVE)
156 link_ksettings->base.autoneg = AUTONEG_ENABLE;
157
158 link_ksettings->base.duplex = (port_cap.duplex == HINIC_DUPLEX_FULL) ?
159 DUPLEX_FULL : DUPLEX_HALF;
160 return 0;
161}
162
163static void hinic_get_drvinfo(struct net_device *netdev,
164 struct ethtool_drvinfo *info)
165{
166 struct hinic_dev *nic_dev = netdev_priv(netdev);
167 struct hinic_hwdev *hwdev = nic_dev->hwdev;
168 struct hinic_hwif *hwif = hwdev->hwif;
169
170 strlcpy(info->driver, HINIC_DRV_NAME, sizeof(info->driver));
171 strlcpy(info->bus_info, pci_name(hwif->pdev), sizeof(info->bus_info));
172}
173
174static void hinic_get_ringparam(struct net_device *netdev,
175 struct ethtool_ringparam *ring)
176{
177 ring->rx_max_pending = HINIC_RQ_DEPTH;
178 ring->tx_max_pending = HINIC_SQ_DEPTH;
179 ring->rx_pending = HINIC_RQ_DEPTH;
180 ring->tx_pending = HINIC_SQ_DEPTH;
181}
182
183static void hinic_get_channels(struct net_device *netdev,
184 struct ethtool_channels *channels)
185{
186 struct hinic_dev *nic_dev = netdev_priv(netdev);
187 struct hinic_hwdev *hwdev = nic_dev->hwdev;
188
189 channels->max_rx = hwdev->nic_cap.max_qps;
190 channels->max_tx = hwdev->nic_cap.max_qps;
191 channels->max_other = 0;
192 channels->max_combined = 0;
193 channels->rx_count = hinic_hwdev_num_qps(hwdev);
194 channels->tx_count = hinic_hwdev_num_qps(hwdev);
195 channels->other_count = 0;
196 channels->combined_count = 0;
197}
198
199static const struct ethtool_ops hinic_ethtool_ops = {
200 .get_link_ksettings = hinic_get_link_ksettings,
201 .get_drvinfo = hinic_get_drvinfo,
202 .get_link = ethtool_op_get_link,
203 .get_ringparam = hinic_get_ringparam,
204 .get_channels = hinic_get_channels,
205};
206
207static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq)
208{
209 struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats;
210 struct hinic_rxq_stats rx_stats;
211
212 u64_stats_init(&rx_stats.syncp);
213
214 hinic_rxq_get_stats(rxq, &rx_stats);
215
216 u64_stats_update_begin(&nic_rx_stats->syncp);
217 nic_rx_stats->bytes += rx_stats.bytes;
218 nic_rx_stats->pkts += rx_stats.pkts;
219 u64_stats_update_end(&nic_rx_stats->syncp);
220
221 hinic_rxq_clean_stats(rxq);
222}
223
224static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq)
225{
226 struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats;
227 struct hinic_txq_stats tx_stats;
228
229 u64_stats_init(&tx_stats.syncp);
230
231 hinic_txq_get_stats(txq, &tx_stats);
232
233 u64_stats_update_begin(&nic_tx_stats->syncp);
234 nic_tx_stats->bytes += tx_stats.bytes;
235 nic_tx_stats->pkts += tx_stats.pkts;
236 nic_tx_stats->tx_busy += tx_stats.tx_busy;
237 nic_tx_stats->tx_wake += tx_stats.tx_wake;
238 nic_tx_stats->tx_dropped += tx_stats.tx_dropped;
239 u64_stats_update_end(&nic_tx_stats->syncp);
240
241 hinic_txq_clean_stats(txq);
242}
243
244static void update_nic_stats(struct hinic_dev *nic_dev)
245{
246 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
247
248 for (i = 0; i < num_qps; i++)
249 update_rx_stats(nic_dev, &nic_dev->rxqs[i]);
250
251 for (i = 0; i < num_qps; i++)
252 update_tx_stats(nic_dev, &nic_dev->txqs[i]);
253}
254
255
256
257
258
259
260
261static int create_txqs(struct hinic_dev *nic_dev)
262{
263 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
264 struct net_device *netdev = nic_dev->netdev;
265 size_t txq_size;
266
267 if (nic_dev->txqs)
268 return -EINVAL;
269
270 txq_size = num_txqs * sizeof(*nic_dev->txqs);
271 nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL);
272 if (!nic_dev->txqs)
273 return -ENOMEM;
274
275 for (i = 0; i < num_txqs; i++) {
276 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
277
278 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
279 if (err) {
280 netif_err(nic_dev, drv, netdev,
281 "Failed to init Txq\n");
282 goto err_init_txq;
283 }
284 }
285
286 return 0;
287
288err_init_txq:
289 for (j = 0; j < i; j++)
290 hinic_clean_txq(&nic_dev->txqs[j]);
291
292 devm_kfree(&netdev->dev, nic_dev->txqs);
293 return err;
294}
295
296
297
298
299
300static void free_txqs(struct hinic_dev *nic_dev)
301{
302 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
303 struct net_device *netdev = nic_dev->netdev;
304
305 if (!nic_dev->txqs)
306 return;
307
308 for (i = 0; i < num_txqs; i++)
309 hinic_clean_txq(&nic_dev->txqs[i]);
310
311 devm_kfree(&netdev->dev, nic_dev->txqs);
312 nic_dev->txqs = NULL;
313}
314
315
316
317
318
319
320
321static int create_rxqs(struct hinic_dev *nic_dev)
322{
323 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
324 struct net_device *netdev = nic_dev->netdev;
325 size_t rxq_size;
326
327 if (nic_dev->rxqs)
328 return -EINVAL;
329
330 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs);
331 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL);
332 if (!nic_dev->rxqs)
333 return -ENOMEM;
334
335 for (i = 0; i < num_rxqs; i++) {
336 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
337
338 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
339 if (err) {
340 netif_err(nic_dev, drv, netdev,
341 "Failed to init rxq\n");
342 goto err_init_rxq;
343 }
344 }
345
346 return 0;
347
348err_init_rxq:
349 for (j = 0; j < i; j++)
350 hinic_clean_rxq(&nic_dev->rxqs[j]);
351
352 devm_kfree(&netdev->dev, nic_dev->rxqs);
353 return err;
354}
355
356
357
358
359
360static void free_rxqs(struct hinic_dev *nic_dev)
361{
362 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
363 struct net_device *netdev = nic_dev->netdev;
364
365 if (!nic_dev->rxqs)
366 return;
367
368 for (i = 0; i < num_rxqs; i++)
369 hinic_clean_rxq(&nic_dev->rxqs[i]);
370
371 devm_kfree(&netdev->dev, nic_dev->rxqs);
372 nic_dev->rxqs = NULL;
373}
374
375static int hinic_open(struct net_device *netdev)
376{
377 struct hinic_dev *nic_dev = netdev_priv(netdev);
378 enum hinic_port_link_state link_state;
379 int err, ret, num_qps;
380
381 if (!(nic_dev->flags & HINIC_INTF_UP)) {
382 err = hinic_hwdev_ifup(nic_dev->hwdev);
383 if (err) {
384 netif_err(nic_dev, drv, netdev,
385 "Failed - HW interface up\n");
386 return err;
387 }
388 }
389
390 err = create_txqs(nic_dev);
391 if (err) {
392 netif_err(nic_dev, drv, netdev,
393 "Failed to create Tx queues\n");
394 goto err_create_txqs;
395 }
396
397 err = create_rxqs(nic_dev);
398 if (err) {
399 netif_err(nic_dev, drv, netdev,
400 "Failed to create Rx queues\n");
401 goto err_create_rxqs;
402 }
403
404 num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
405 netif_set_real_num_tx_queues(netdev, num_qps);
406 netif_set_real_num_rx_queues(netdev, num_qps);
407
408 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
409 if (err) {
410 netif_err(nic_dev, drv, netdev,
411 "Failed to set port state\n");
412 goto err_port_state;
413 }
414
415 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
416 if (err) {
417 netif_err(nic_dev, drv, netdev,
418 "Failed to set func port state\n");
419 goto err_func_port_state;
420 }
421
422
423 msleep(3000);
424
425 down(&nic_dev->mgmt_lock);
426
427 err = hinic_port_link_state(nic_dev, &link_state);
428 if (err) {
429 netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
430 goto err_port_link;
431 }
432
433 if (link_state == HINIC_LINK_STATE_UP)
434 nic_dev->flags |= HINIC_LINK_UP;
435
436 nic_dev->flags |= HINIC_INTF_UP;
437
438 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
439 (HINIC_LINK_UP | HINIC_INTF_UP)) {
440 netif_info(nic_dev, drv, netdev, "link + intf UP\n");
441 netif_carrier_on(netdev);
442 netif_tx_wake_all_queues(netdev);
443 }
444
445 up(&nic_dev->mgmt_lock);
446
447 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
448 return 0;
449
450err_port_link:
451 up(&nic_dev->mgmt_lock);
452 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
453 if (ret)
454 netif_warn(nic_dev, drv, netdev,
455 "Failed to revert func port state\n");
456
457err_func_port_state:
458 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
459 if (ret)
460 netif_warn(nic_dev, drv, netdev,
461 "Failed to revert port state\n");
462
463err_port_state:
464 free_rxqs(nic_dev);
465
466err_create_rxqs:
467 free_txqs(nic_dev);
468
469err_create_txqs:
470 if (!(nic_dev->flags & HINIC_INTF_UP))
471 hinic_hwdev_ifdown(nic_dev->hwdev);
472 return err;
473}
474
475static int hinic_close(struct net_device *netdev)
476{
477 struct hinic_dev *nic_dev = netdev_priv(netdev);
478 unsigned int flags;
479 int err;
480
481 down(&nic_dev->mgmt_lock);
482
483 flags = nic_dev->flags;
484 nic_dev->flags &= ~HINIC_INTF_UP;
485
486 netif_carrier_off(netdev);
487 netif_tx_disable(netdev);
488
489 update_nic_stats(nic_dev);
490
491 up(&nic_dev->mgmt_lock);
492
493 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
494 if (err) {
495 netif_err(nic_dev, drv, netdev,
496 "Failed to set func port state\n");
497 nic_dev->flags |= (flags & HINIC_INTF_UP);
498 return err;
499 }
500
501 err = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
502 if (err) {
503 netif_err(nic_dev, drv, netdev, "Failed to set port state\n");
504 nic_dev->flags |= (flags & HINIC_INTF_UP);
505 return err;
506 }
507
508 free_rxqs(nic_dev);
509 free_txqs(nic_dev);
510
511 if (flags & HINIC_INTF_UP)
512 hinic_hwdev_ifdown(nic_dev->hwdev);
513
514 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
515 return 0;
516}
517
518static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
519{
520 struct hinic_dev *nic_dev = netdev_priv(netdev);
521 int err;
522
523 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
524
525 err = hinic_port_set_mtu(nic_dev, new_mtu);
526 if (err)
527 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
528 else
529 netdev->mtu = new_mtu;
530
531 return err;
532}
533
534
535
536
537
538
539
540
541static int change_mac_addr(struct net_device *netdev, const u8 *addr)
542{
543 struct hinic_dev *nic_dev = netdev_priv(netdev);
544 u16 vid = 0;
545 int err;
546
547 if (!is_valid_ether_addr(addr))
548 return -EADDRNOTAVAIL;
549
550 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
551 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
552
553 down(&nic_dev->mgmt_lock);
554
555 do {
556 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
557 if (err) {
558 netif_err(nic_dev, drv, netdev,
559 "Failed to delete mac\n");
560 break;
561 }
562
563 err = hinic_port_add_mac(nic_dev, addr, vid);
564 if (err) {
565 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
566 break;
567 }
568
569 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
570 } while (vid != VLAN_N_VID);
571
572 up(&nic_dev->mgmt_lock);
573 return err;
574}
575
576static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
577{
578 unsigned char new_mac[ETH_ALEN];
579 struct sockaddr *saddr = addr;
580 int err;
581
582 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
583
584 err = change_mac_addr(netdev, new_mac);
585 if (!err)
586 memcpy(netdev->dev_addr, new_mac, ETH_ALEN);
587
588 return err;
589}
590
591
592
593
594
595
596
597
598static int add_mac_addr(struct net_device *netdev, const u8 *addr)
599{
600 struct hinic_dev *nic_dev = netdev_priv(netdev);
601 u16 vid = 0;
602 int err;
603
604 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
605 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
606
607 down(&nic_dev->mgmt_lock);
608
609 do {
610 err = hinic_port_add_mac(nic_dev, addr, vid);
611 if (err) {
612 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
613 break;
614 }
615
616 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
617 } while (vid != VLAN_N_VID);
618
619 up(&nic_dev->mgmt_lock);
620 return err;
621}
622
623
624
625
626
627
628
629
630static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
631{
632 struct hinic_dev *nic_dev = netdev_priv(netdev);
633 u16 vid = 0;
634 int err;
635
636 if (!is_valid_ether_addr(addr))
637 return -EADDRNOTAVAIL;
638
639 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
640 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
641
642 down(&nic_dev->mgmt_lock);
643
644 do {
645 err = hinic_port_del_mac(nic_dev, addr, vid);
646 if (err) {
647 netif_err(nic_dev, drv, netdev,
648 "Failed to delete mac\n");
649 break;
650 }
651
652 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
653 } while (vid != VLAN_N_VID);
654
655 up(&nic_dev->mgmt_lock);
656 return err;
657}
658
659static int hinic_vlan_rx_add_vid(struct net_device *netdev,
660 __always_unused __be16 proto, u16 vid)
661{
662 struct hinic_dev *nic_dev = netdev_priv(netdev);
663 int ret, err;
664
665 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
666
667 down(&nic_dev->mgmt_lock);
668
669 err = hinic_port_add_vlan(nic_dev, vid);
670 if (err) {
671 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
672 goto err_vlan_add;
673 }
674
675 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
676 if (err) {
677 netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
678 goto err_add_mac;
679 }
680
681 bitmap_set(nic_dev->vlan_bitmap, vid, 1);
682
683 up(&nic_dev->mgmt_lock);
684 return 0;
685
686err_add_mac:
687 ret = hinic_port_del_vlan(nic_dev, vid);
688 if (ret)
689 netif_err(nic_dev, drv, netdev,
690 "Failed to revert by removing vlan\n");
691
692err_vlan_add:
693 up(&nic_dev->mgmt_lock);
694 return err;
695}
696
697static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
698 __always_unused __be16 proto, u16 vid)
699{
700 struct hinic_dev *nic_dev = netdev_priv(netdev);
701 int err;
702
703 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
704
705 down(&nic_dev->mgmt_lock);
706
707 err = hinic_port_del_vlan(nic_dev, vid);
708 if (err) {
709 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
710 goto err_del_vlan;
711 }
712
713 bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
714
715 up(&nic_dev->mgmt_lock);
716 return 0;
717
718err_del_vlan:
719 up(&nic_dev->mgmt_lock);
720 return err;
721}
722
723static void set_rx_mode(struct work_struct *work)
724{
725 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
726 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
727 struct netdev_hw_addr *ha;
728
729 netif_info(nic_dev, drv, nic_dev->netdev, "set rx mode work\n");
730
731 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
732
733 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
734 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
735
736 netdev_for_each_mc_addr(ha, nic_dev->netdev)
737 add_mac_addr(nic_dev->netdev, ha->addr);
738}
739
740static void hinic_set_rx_mode(struct net_device *netdev)
741{
742 struct hinic_dev *nic_dev = netdev_priv(netdev);
743 struct hinic_rx_mode_work *rx_mode_work;
744 u32 rx_mode;
745
746 rx_mode_work = &nic_dev->rx_mode_work;
747
748 rx_mode = HINIC_RX_MODE_UC |
749 HINIC_RX_MODE_MC |
750 HINIC_RX_MODE_BC;
751
752 if (netdev->flags & IFF_PROMISC)
753 rx_mode |= HINIC_RX_MODE_PROMISC;
754 else if (netdev->flags & IFF_ALLMULTI)
755 rx_mode |= HINIC_RX_MODE_MC_ALL;
756
757 rx_mode_work->rx_mode = rx_mode;
758
759 queue_work(nic_dev->workq, &rx_mode_work->work);
760}
761
762static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue)
763{
764 struct hinic_dev *nic_dev = netdev_priv(netdev);
765
766 netif_err(nic_dev, drv, netdev, "Tx timeout\n");
767}
768
769static void hinic_get_stats64(struct net_device *netdev,
770 struct rtnl_link_stats64 *stats)
771{
772 struct hinic_dev *nic_dev = netdev_priv(netdev);
773 struct hinic_rxq_stats *nic_rx_stats;
774 struct hinic_txq_stats *nic_tx_stats;
775
776 nic_rx_stats = &nic_dev->rx_stats;
777 nic_tx_stats = &nic_dev->tx_stats;
778
779 down(&nic_dev->mgmt_lock);
780
781 if (nic_dev->flags & HINIC_INTF_UP)
782 update_nic_stats(nic_dev);
783
784 up(&nic_dev->mgmt_lock);
785
786 stats->rx_bytes = nic_rx_stats->bytes;
787 stats->rx_packets = nic_rx_stats->pkts;
788
789 stats->tx_bytes = nic_tx_stats->bytes;
790 stats->tx_packets = nic_tx_stats->pkts;
791 stats->tx_errors = nic_tx_stats->tx_dropped;
792}
793
794#ifdef CONFIG_NET_POLL_CONTROLLER
795static void hinic_netpoll(struct net_device *netdev)
796{
797 struct hinic_dev *nic_dev = netdev_priv(netdev);
798 int i, num_qps;
799
800 num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
801 for (i = 0; i < num_qps; i++) {
802 struct hinic_txq *txq = &nic_dev->txqs[i];
803 struct hinic_rxq *rxq = &nic_dev->rxqs[i];
804
805 napi_schedule(&txq->napi);
806 napi_schedule(&rxq->napi);
807 }
808}
809#endif
810
811static const struct net_device_ops hinic_netdev_ops = {
812 .ndo_open = hinic_open,
813 .ndo_stop = hinic_close,
814 .ndo_change_mtu = hinic_change_mtu,
815 .ndo_set_mac_address = hinic_set_mac_addr,
816 .ndo_validate_addr = eth_validate_addr,
817 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
818 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
819 .ndo_set_rx_mode = hinic_set_rx_mode,
820 .ndo_start_xmit = hinic_xmit_frame,
821 .ndo_tx_timeout = hinic_tx_timeout,
822 .ndo_get_stats64 = hinic_get_stats64,
823#ifdef CONFIG_NET_POLL_CONTROLLER
824 .ndo_poll_controller = hinic_netpoll,
825#endif
826};
827
828static void netdev_features_init(struct net_device *netdev)
829{
830 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
831 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
832 NETIF_F_RXCSUM;
833
834 netdev->vlan_features = netdev->hw_features;
835
836 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
837}
838
839
840
841
842
843
844
845
846
847
848
849static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
850 void *buf_out, u16 *out_size)
851{
852 struct hinic_port_link_status *link_status, *ret_link_status;
853 struct hinic_dev *nic_dev = handle;
854
855 link_status = buf_in;
856
857 if (link_status->link == HINIC_LINK_STATE_UP) {
858 down(&nic_dev->mgmt_lock);
859
860 nic_dev->flags |= HINIC_LINK_UP;
861
862 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
863 (HINIC_LINK_UP | HINIC_INTF_UP)) {
864 netif_carrier_on(nic_dev->netdev);
865 netif_tx_wake_all_queues(nic_dev->netdev);
866 }
867
868 up(&nic_dev->mgmt_lock);
869
870 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
871 } else {
872 down(&nic_dev->mgmt_lock);
873
874 nic_dev->flags &= ~HINIC_LINK_UP;
875
876 netif_carrier_off(nic_dev->netdev);
877 netif_tx_disable(nic_dev->netdev);
878
879 up(&nic_dev->mgmt_lock);
880
881 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
882 }
883
884 ret_link_status = buf_out;
885 ret_link_status->status = 0;
886
887 *out_size = sizeof(*ret_link_status);
888}
889
890static int set_features(struct hinic_dev *nic_dev,
891 netdev_features_t pre_features,
892 netdev_features_t features, bool force_change)
893{
894 netdev_features_t changed = force_change ? ~0 : pre_features ^ features;
895 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN;
896 int err = 0;
897
898 if (changed & NETIF_F_TSO)
899 err = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ?
900 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE);
901
902 if (changed & NETIF_F_RXCSUM)
903 err = hinic_set_rx_csum_offload(nic_dev, csum_en);
904
905 return err;
906}
907
908
909
910
911
912
913
914static int nic_dev_init(struct pci_dev *pdev)
915{
916 struct hinic_rx_mode_work *rx_mode_work;
917 struct hinic_txq_stats *tx_stats;
918 struct hinic_rxq_stats *rx_stats;
919 struct hinic_dev *nic_dev;
920 struct net_device *netdev;
921 struct hinic_hwdev *hwdev;
922 int err, num_qps;
923
924 hwdev = hinic_init_hwdev(pdev);
925 if (IS_ERR(hwdev)) {
926 dev_err(&pdev->dev, "Failed to initialize HW device\n");
927 return PTR_ERR(hwdev);
928 }
929
930 num_qps = hinic_hwdev_num_qps(hwdev);
931 if (num_qps <= 0) {
932 dev_err(&pdev->dev, "Invalid number of QPS\n");
933 err = -EINVAL;
934 goto err_num_qps;
935 }
936
937 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
938 if (!netdev) {
939 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
940 err = -ENOMEM;
941 goto err_alloc_etherdev;
942 }
943
944 netdev->netdev_ops = &hinic_netdev_ops;
945 netdev->ethtool_ops = &hinic_ethtool_ops;
946 netdev->max_mtu = ETH_MAX_MTU;
947
948 nic_dev = netdev_priv(netdev);
949 nic_dev->netdev = netdev;
950 nic_dev->hwdev = hwdev;
951 nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
952 nic_dev->flags = 0;
953 nic_dev->txqs = NULL;
954 nic_dev->rxqs = NULL;
955 nic_dev->tx_weight = tx_weight;
956 nic_dev->rx_weight = rx_weight;
957
958 sema_init(&nic_dev->mgmt_lock, 1);
959
960 tx_stats = &nic_dev->tx_stats;
961 rx_stats = &nic_dev->rx_stats;
962
963 u64_stats_init(&tx_stats->syncp);
964 u64_stats_init(&rx_stats->syncp);
965
966 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
967 VLAN_BITMAP_SIZE(nic_dev),
968 GFP_KERNEL);
969 if (!nic_dev->vlan_bitmap) {
970 err = -ENOMEM;
971 goto err_vlan_bitmap;
972 }
973
974 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
975 if (!nic_dev->workq) {
976 err = -ENOMEM;
977 goto err_workq;
978 }
979
980 pci_set_drvdata(pdev, netdev);
981
982 err = hinic_port_get_mac(nic_dev, netdev->dev_addr);
983 if (err)
984 dev_warn(&pdev->dev, "Failed to get mac address\n");
985
986 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0);
987 if (err) {
988 dev_err(&pdev->dev, "Failed to add mac\n");
989 goto err_add_mac;
990 }
991
992 err = hinic_port_set_mtu(nic_dev, netdev->mtu);
993 if (err) {
994 dev_err(&pdev->dev, "Failed to set mtu\n");
995 goto err_set_mtu;
996 }
997
998 rx_mode_work = &nic_dev->rx_mode_work;
999 INIT_WORK(&rx_mode_work->work, set_rx_mode);
1000
1001 netdev_features_init(netdev);
1002
1003 netif_carrier_off(netdev);
1004
1005 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
1006 nic_dev, link_status_event_handler);
1007
1008 err = set_features(nic_dev, 0, nic_dev->netdev->features, true);
1009 if (err)
1010 goto err_set_features;
1011
1012 SET_NETDEV_DEV(netdev, &pdev->dev);
1013
1014 err = register_netdev(netdev);
1015 if (err) {
1016 dev_err(&pdev->dev, "Failed to register netdev\n");
1017 goto err_reg_netdev;
1018 }
1019
1020 return 0;
1021
1022err_reg_netdev:
1023err_set_features:
1024 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1025 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1026 cancel_work_sync(&rx_mode_work->work);
1027
1028err_set_mtu:
1029err_add_mac:
1030 pci_set_drvdata(pdev, NULL);
1031 destroy_workqueue(nic_dev->workq);
1032
1033err_workq:
1034err_vlan_bitmap:
1035 free_netdev(netdev);
1036
1037err_alloc_etherdev:
1038err_num_qps:
1039 hinic_free_hwdev(hwdev);
1040 return err;
1041}
1042
1043static int hinic_probe(struct pci_dev *pdev,
1044 const struct pci_device_id *id)
1045{
1046 int err = pci_enable_device(pdev);
1047
1048 if (err) {
1049 dev_err(&pdev->dev, "Failed to enable PCI device\n");
1050 return err;
1051 }
1052
1053 err = pci_request_regions(pdev, HINIC_DRV_NAME);
1054 if (err) {
1055 dev_err(&pdev->dev, "Failed to request PCI regions\n");
1056 goto err_pci_regions;
1057 }
1058
1059 pci_set_master(pdev);
1060
1061 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1062 if (err) {
1063 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n");
1064 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1065 if (err) {
1066 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1067 goto err_dma_mask;
1068 }
1069 }
1070
1071 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1072 if (err) {
1073 dev_warn(&pdev->dev,
1074 "Couldn't set 64-bit consistent DMA mask\n");
1075 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1076 if (err) {
1077 dev_err(&pdev->dev,
1078 "Failed to set consistent DMA mask\n");
1079 goto err_dma_consistent_mask;
1080 }
1081 }
1082
1083 err = nic_dev_init(pdev);
1084 if (err) {
1085 dev_err(&pdev->dev, "Failed to initialize NIC device\n");
1086 goto err_nic_dev_init;
1087 }
1088
1089 dev_info(&pdev->dev, "HiNIC driver - probed\n");
1090 return 0;
1091
1092err_nic_dev_init:
1093err_dma_consistent_mask:
1094err_dma_mask:
1095 pci_release_regions(pdev);
1096
1097err_pci_regions:
1098 pci_disable_device(pdev);
1099 return err;
1100}
1101
1102static void hinic_remove(struct pci_dev *pdev)
1103{
1104 struct net_device *netdev = pci_get_drvdata(pdev);
1105 struct hinic_dev *nic_dev = netdev_priv(netdev);
1106 struct hinic_rx_mode_work *rx_mode_work;
1107
1108 unregister_netdev(netdev);
1109
1110 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1111 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1112
1113 rx_mode_work = &nic_dev->rx_mode_work;
1114 cancel_work_sync(&rx_mode_work->work);
1115
1116 pci_set_drvdata(pdev, NULL);
1117
1118 destroy_workqueue(nic_dev->workq);
1119
1120 hinic_free_hwdev(nic_dev->hwdev);
1121
1122 free_netdev(netdev);
1123
1124 pci_release_regions(pdev);
1125 pci_disable_device(pdev);
1126
1127 dev_info(&pdev->dev, "HiNIC driver - removed\n");
1128}
1129
1130static void hinic_shutdown(struct pci_dev *pdev)
1131{
1132 pci_disable_device(pdev);
1133}
1134
1135static const struct pci_device_id hinic_pci_table[] = {
1136 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
1137 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
1138 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0},
1139 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0},
1140 { 0, 0}
1141};
1142MODULE_DEVICE_TABLE(pci, hinic_pci_table);
1143
1144static struct pci_driver hinic_driver = {
1145 .name = HINIC_DRV_NAME,
1146 .id_table = hinic_pci_table,
1147 .probe = hinic_probe,
1148 .remove = hinic_remove,
1149 .shutdown = hinic_shutdown,
1150};
1151
1152module_pci_driver(hinic_driver);
1153
