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5
6
7#include <linux/kernel.h>
8#include <linux/module.h>
9#include <linux/moduleparam.h>
10#include <linux/pci.h>
11#include <linux/device.h>
12#include <linux/errno.h>
13#include <linux/types.h>
14#include <linux/etherdevice.h>
15#include <linux/netdevice.h>
16#include <linux/slab.h>
17#include <linux/if_vlan.h>
18#include <linux/semaphore.h>
19#include <linux/workqueue.h>
20#include <net/ip.h>
21#include <net/devlink.h>
22#include <linux/bitops.h>
23#include <linux/bitmap.h>
24#include <linux/delay.h>
25#include <linux/err.h>
26
27#include "hinic_debugfs.h"
28#include "hinic_hw_qp.h"
29#include "hinic_hw_dev.h"
30#include "hinic_devlink.h"
31#include "hinic_port.h"
32#include "hinic_tx.h"
33#include "hinic_rx.h"
34#include "hinic_dev.h"
35#include "hinic_sriov.h"
36
37MODULE_AUTHOR("Huawei Technologies CO., Ltd");
38MODULE_DESCRIPTION("Huawei Intelligent NIC driver");
39MODULE_LICENSE("GPL");
40
41static unsigned int tx_weight = 64;
42module_param(tx_weight, uint, 0644);
43MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)");
44
45static unsigned int rx_weight = 64;
46module_param(rx_weight, uint, 0644);
47MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)");
48
49#define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822
50#define HINIC_DEV_ID_DUAL_PORT_100GE 0x0200
51#define HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ 0x0205
52#define HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ 0x0210
53#define HINIC_DEV_ID_VF 0x375e
54
55#define HINIC_WQ_NAME "hinic_dev"
56
57#define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \
58 NETIF_MSG_IFUP | \
59 NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR)
60
61#define HINIC_LRO_MAX_WQE_NUM_DEFAULT 8
62
63#define HINIC_LRO_RX_TIMER_DEFAULT 16
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
73#define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000
74
75#define HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT 2
76#define HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG 32
77#define HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG 7
78
79static int change_mac_addr(struct net_device *netdev, const u8 *addr);
80
81static int set_features(struct hinic_dev *nic_dev,
82 netdev_features_t pre_features,
83 netdev_features_t features, bool force_change);
84
85static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq)
86{
87 struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats;
88 struct hinic_rxq_stats rx_stats;
89
90 u64_stats_init(&rx_stats.syncp);
91
92 hinic_rxq_get_stats(rxq, &rx_stats);
93
94 u64_stats_update_begin(&nic_rx_stats->syncp);
95 nic_rx_stats->bytes += rx_stats.bytes;
96 nic_rx_stats->pkts += rx_stats.pkts;
97 nic_rx_stats->errors += rx_stats.errors;
98 nic_rx_stats->csum_errors += rx_stats.csum_errors;
99 nic_rx_stats->other_errors += rx_stats.other_errors;
100 u64_stats_update_end(&nic_rx_stats->syncp);
101
102 hinic_rxq_clean_stats(rxq);
103}
104
105static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq)
106{
107 struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats;
108 struct hinic_txq_stats tx_stats;
109
110 u64_stats_init(&tx_stats.syncp);
111
112 hinic_txq_get_stats(txq, &tx_stats);
113
114 u64_stats_update_begin(&nic_tx_stats->syncp);
115 nic_tx_stats->bytes += tx_stats.bytes;
116 nic_tx_stats->pkts += tx_stats.pkts;
117 nic_tx_stats->tx_busy += tx_stats.tx_busy;
118 nic_tx_stats->tx_wake += tx_stats.tx_wake;
119 nic_tx_stats->tx_dropped += tx_stats.tx_dropped;
120 nic_tx_stats->big_frags_pkts += tx_stats.big_frags_pkts;
121 u64_stats_update_end(&nic_tx_stats->syncp);
122
123 hinic_txq_clean_stats(txq);
124}
125
126static void update_nic_stats(struct hinic_dev *nic_dev)
127{
128 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
129
130 for (i = 0; i < num_qps; i++)
131 update_rx_stats(nic_dev, &nic_dev->rxqs[i]);
132
133 for (i = 0; i < num_qps; i++)
134 update_tx_stats(nic_dev, &nic_dev->txqs[i]);
135}
136
137
138
139
140
141
142
143static int create_txqs(struct hinic_dev *nic_dev)
144{
145 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
146 struct net_device *netdev = nic_dev->netdev;
147
148 if (nic_dev->txqs)
149 return -EINVAL;
150
151 nic_dev->txqs = devm_kcalloc(&netdev->dev, num_txqs,
152 sizeof(*nic_dev->txqs), GFP_KERNEL);
153 if (!nic_dev->txqs)
154 return -ENOMEM;
155
156 hinic_sq_dbgfs_init(nic_dev);
157
158 for (i = 0; i < num_txqs; i++) {
159 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
160
161 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
162 if (err) {
163 netif_err(nic_dev, drv, netdev,
164 "Failed to init Txq\n");
165 goto err_init_txq;
166 }
167
168 err = hinic_sq_debug_add(nic_dev, i);
169 if (err) {
170 netif_err(nic_dev, drv, netdev,
171 "Failed to add SQ%d debug\n", i);
172 goto err_add_sq_dbg;
173 }
174 }
175
176 return 0;
177
178err_add_sq_dbg:
179 hinic_clean_txq(&nic_dev->txqs[i]);
180err_init_txq:
181 for (j = 0; j < i; j++) {
182 hinic_sq_debug_rem(nic_dev->txqs[j].sq);
183 hinic_clean_txq(&nic_dev->txqs[j]);
184 }
185
186 hinic_sq_dbgfs_uninit(nic_dev);
187
188 devm_kfree(&netdev->dev, nic_dev->txqs);
189 return err;
190}
191
192static void enable_txqs_napi(struct hinic_dev *nic_dev)
193{
194 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
195 int i;
196
197 for (i = 0; i < num_txqs; i++)
198 napi_enable(&nic_dev->txqs[i].napi);
199}
200
201static void disable_txqs_napi(struct hinic_dev *nic_dev)
202{
203 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
204 int i;
205
206 for (i = 0; i < num_txqs; i++)
207 napi_disable(&nic_dev->txqs[i].napi);
208}
209
210
211
212
213
214static void free_txqs(struct hinic_dev *nic_dev)
215{
216 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
217 struct net_device *netdev = nic_dev->netdev;
218
219 if (!nic_dev->txqs)
220 return;
221
222 for (i = 0; i < num_txqs; i++) {
223 hinic_sq_debug_rem(nic_dev->txqs[i].sq);
224 hinic_clean_txq(&nic_dev->txqs[i]);
225 }
226
227 hinic_sq_dbgfs_uninit(nic_dev);
228
229 devm_kfree(&netdev->dev, nic_dev->txqs);
230 nic_dev->txqs = NULL;
231}
232
233
234
235
236
237
238
239static int create_rxqs(struct hinic_dev *nic_dev)
240{
241 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
242 struct net_device *netdev = nic_dev->netdev;
243
244 if (nic_dev->rxqs)
245 return -EINVAL;
246
247 nic_dev->rxqs = devm_kcalloc(&netdev->dev, num_rxqs,
248 sizeof(*nic_dev->rxqs), GFP_KERNEL);
249 if (!nic_dev->rxqs)
250 return -ENOMEM;
251
252 hinic_rq_dbgfs_init(nic_dev);
253
254 for (i = 0; i < num_rxqs; i++) {
255 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
256
257 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
258 if (err) {
259 netif_err(nic_dev, drv, netdev,
260 "Failed to init rxq\n");
261 goto err_init_rxq;
262 }
263
264 err = hinic_rq_debug_add(nic_dev, i);
265 if (err) {
266 netif_err(nic_dev, drv, netdev,
267 "Failed to add RQ%d debug\n", i);
268 goto err_add_rq_dbg;
269 }
270 }
271
272 return 0;
273
274err_add_rq_dbg:
275 hinic_clean_rxq(&nic_dev->rxqs[i]);
276err_init_rxq:
277 for (j = 0; j < i; j++) {
278 hinic_rq_debug_rem(nic_dev->rxqs[j].rq);
279 hinic_clean_rxq(&nic_dev->rxqs[j]);
280 }
281
282 hinic_rq_dbgfs_uninit(nic_dev);
283
284 devm_kfree(&netdev->dev, nic_dev->rxqs);
285 return err;
286}
287
288
289
290
291
292static void free_rxqs(struct hinic_dev *nic_dev)
293{
294 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
295 struct net_device *netdev = nic_dev->netdev;
296
297 if (!nic_dev->rxqs)
298 return;
299
300 for (i = 0; i < num_rxqs; i++) {
301 hinic_rq_debug_rem(nic_dev->rxqs[i].rq);
302 hinic_clean_rxq(&nic_dev->rxqs[i]);
303 }
304
305 hinic_rq_dbgfs_uninit(nic_dev);
306
307 devm_kfree(&netdev->dev, nic_dev->rxqs);
308 nic_dev->rxqs = NULL;
309}
310
311static int hinic_configure_max_qnum(struct hinic_dev *nic_dev)
312{
313 return hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps);
314}
315
316static int hinic_rss_init(struct hinic_dev *nic_dev)
317{
318 u8 default_rss_key[HINIC_RSS_KEY_SIZE];
319 u8 tmpl_idx = nic_dev->rss_tmpl_idx;
320 u32 *indir_tbl;
321 int err, i;
322
323 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL);
324 if (!indir_tbl)
325 return -ENOMEM;
326
327 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key));
328 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++)
329 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss);
330
331 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key);
332 if (err)
333 goto out;
334
335 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl);
336 if (err)
337 goto out;
338
339 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type);
340 if (err)
341 goto out;
342
343 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx,
344 nic_dev->rss_hash_engine);
345 if (err)
346 goto out;
347
348 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx);
349 if (err)
350 goto out;
351
352out:
353 kfree(indir_tbl);
354 return err;
355}
356
357static void hinic_rss_deinit(struct hinic_dev *nic_dev)
358{
359 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx);
360}
361
362static void hinic_init_rss_parameters(struct hinic_dev *nic_dev)
363{
364 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR;
365 nic_dev->rss_type.tcp_ipv6_ext = 1;
366 nic_dev->rss_type.ipv6_ext = 1;
367 nic_dev->rss_type.tcp_ipv6 = 1;
368 nic_dev->rss_type.ipv6 = 1;
369 nic_dev->rss_type.tcp_ipv4 = 1;
370 nic_dev->rss_type.ipv4 = 1;
371 nic_dev->rss_type.udp_ipv6 = 1;
372 nic_dev->rss_type.udp_ipv4 = 1;
373}
374
375static void hinic_enable_rss(struct hinic_dev *nic_dev)
376{
377 struct net_device *netdev = nic_dev->netdev;
378 struct hinic_hwdev *hwdev = nic_dev->hwdev;
379 struct hinic_hwif *hwif = hwdev->hwif;
380 struct pci_dev *pdev = hwif->pdev;
381 int i, node, err = 0;
382 u16 num_cpus = 0;
383
384 if (nic_dev->max_qps <= 1) {
385 nic_dev->flags &= ~HINIC_RSS_ENABLE;
386 nic_dev->rss_limit = nic_dev->max_qps;
387 nic_dev->num_qps = nic_dev->max_qps;
388 nic_dev->num_rss = nic_dev->max_qps;
389
390 return;
391 }
392
393 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx);
394 if (err) {
395 netif_err(nic_dev, drv, netdev,
396 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n");
397 nic_dev->flags &= ~HINIC_RSS_ENABLE;
398 nic_dev->max_qps = 1;
399 nic_dev->rss_limit = nic_dev->max_qps;
400 nic_dev->num_qps = nic_dev->max_qps;
401 nic_dev->num_rss = nic_dev->max_qps;
402
403 return;
404 }
405
406 nic_dev->flags |= HINIC_RSS_ENABLE;
407
408 for (i = 0; i < num_online_cpus(); i++) {
409 node = cpu_to_node(i);
410 if (node == dev_to_node(&pdev->dev))
411 num_cpus++;
412 }
413
414 if (!num_cpus)
415 num_cpus = num_online_cpus();
416
417 nic_dev->num_qps = hinic_hwdev_num_qps(hwdev);
418 nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus);
419
420 nic_dev->rss_limit = nic_dev->num_qps;
421 nic_dev->num_rss = nic_dev->num_qps;
422
423 hinic_init_rss_parameters(nic_dev);
424 err = hinic_rss_init(nic_dev);
425 if (err)
426 netif_err(nic_dev, drv, netdev, "Failed to init rss\n");
427}
428
429int hinic_open(struct net_device *netdev)
430{
431 struct hinic_dev *nic_dev = netdev_priv(netdev);
432 enum hinic_port_link_state link_state;
433 int err, ret;
434
435 if (!(nic_dev->flags & HINIC_INTF_UP)) {
436 err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth,
437 nic_dev->rq_depth);
438 if (err) {
439 netif_err(nic_dev, drv, netdev,
440 "Failed - HW interface up\n");
441 return err;
442 }
443 }
444
445 err = create_txqs(nic_dev);
446 if (err) {
447 netif_err(nic_dev, drv, netdev,
448 "Failed to create Tx queues\n");
449 goto err_create_txqs;
450 }
451
452 enable_txqs_napi(nic_dev);
453
454 err = create_rxqs(nic_dev);
455 if (err) {
456 netif_err(nic_dev, drv, netdev,
457 "Failed to create Rx queues\n");
458 goto err_create_rxqs;
459 }
460
461 hinic_enable_rss(nic_dev);
462
463 err = hinic_configure_max_qnum(nic_dev);
464 if (err) {
465 netif_err(nic_dev, drv, nic_dev->netdev,
466 "Failed to configure the maximum number of queues\n");
467 goto err_port_state;
468 }
469
470 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps);
471 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps);
472
473 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
474 if (err) {
475 netif_err(nic_dev, drv, netdev,
476 "Failed to set port state\n");
477 goto err_port_state;
478 }
479
480 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
481 if (err) {
482 netif_err(nic_dev, drv, netdev,
483 "Failed to set func port state\n");
484 goto err_func_port_state;
485 }
486
487 down(&nic_dev->mgmt_lock);
488
489 err = hinic_port_link_state(nic_dev, &link_state);
490 if (err) {
491 netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
492 goto err_port_link;
493 }
494
495 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
496 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state);
497
498 if (link_state == HINIC_LINK_STATE_UP) {
499 nic_dev->flags |= HINIC_LINK_UP;
500 nic_dev->cable_unplugged = false;
501 nic_dev->module_unrecognized = false;
502 }
503
504 nic_dev->flags |= HINIC_INTF_UP;
505
506 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
507 (HINIC_LINK_UP | HINIC_INTF_UP)) {
508 netif_info(nic_dev, drv, netdev, "link + intf UP\n");
509 netif_carrier_on(netdev);
510 netif_tx_wake_all_queues(netdev);
511 }
512
513 up(&nic_dev->mgmt_lock);
514
515 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
516 return 0;
517
518err_port_link:
519 up(&nic_dev->mgmt_lock);
520 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
521 if (ret)
522 netif_warn(nic_dev, drv, netdev,
523 "Failed to revert func port state\n");
524
525err_func_port_state:
526 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
527 if (ret)
528 netif_warn(nic_dev, drv, netdev,
529 "Failed to revert port state\n");
530err_port_state:
531 free_rxqs(nic_dev);
532 if (nic_dev->flags & HINIC_RSS_ENABLE) {
533 hinic_rss_deinit(nic_dev);
534 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
535 }
536
537err_create_rxqs:
538 disable_txqs_napi(nic_dev);
539 free_txqs(nic_dev);
540
541err_create_txqs:
542 if (!(nic_dev->flags & HINIC_INTF_UP))
543 hinic_hwdev_ifdown(nic_dev->hwdev);
544 return err;
545}
546
547int hinic_close(struct net_device *netdev)
548{
549 struct hinic_dev *nic_dev = netdev_priv(netdev);
550 unsigned int flags;
551
552
553 disable_txqs_napi(nic_dev);
554
555 down(&nic_dev->mgmt_lock);
556
557 flags = nic_dev->flags;
558 nic_dev->flags &= ~HINIC_INTF_UP;
559
560 netif_carrier_off(netdev);
561 netif_tx_disable(netdev);
562
563 update_nic_stats(nic_dev);
564
565 up(&nic_dev->mgmt_lock);
566
567 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
568 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0);
569
570 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
571
572 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
573
574 if (nic_dev->flags & HINIC_RSS_ENABLE) {
575 hinic_rss_deinit(nic_dev);
576 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
577 }
578
579 free_rxqs(nic_dev);
580 free_txqs(nic_dev);
581
582 if (flags & HINIC_INTF_UP)
583 hinic_hwdev_ifdown(nic_dev->hwdev);
584
585 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
586 return 0;
587}
588
589static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
590{
591 struct hinic_dev *nic_dev = netdev_priv(netdev);
592 int err;
593
594 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
595
596 err = hinic_port_set_mtu(nic_dev, new_mtu);
597 if (err)
598 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
599 else
600 netdev->mtu = new_mtu;
601
602 return err;
603}
604
605
606
607
608
609
610
611
612static int change_mac_addr(struct net_device *netdev, const u8 *addr)
613{
614 struct hinic_dev *nic_dev = netdev_priv(netdev);
615 u16 vid = 0;
616 int err;
617
618 if (!is_valid_ether_addr(addr))
619 return -EADDRNOTAVAIL;
620
621 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
622 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
623
624 down(&nic_dev->mgmt_lock);
625
626 do {
627 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
628 if (err) {
629 netif_err(nic_dev, drv, netdev,
630 "Failed to delete mac\n");
631 break;
632 }
633
634 err = hinic_port_add_mac(nic_dev, addr, vid);
635 if (err) {
636 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
637 break;
638 }
639
640 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
641 } while (vid != VLAN_N_VID);
642
643 up(&nic_dev->mgmt_lock);
644 return err;
645}
646
647static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
648{
649 unsigned char new_mac[ETH_ALEN];
650 struct sockaddr *saddr = addr;
651 int err;
652
653 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
654
655 err = change_mac_addr(netdev, new_mac);
656 if (!err)
657 eth_hw_addr_set(netdev, new_mac);
658
659 return err;
660}
661
662
663
664
665
666
667
668
669static int add_mac_addr(struct net_device *netdev, const u8 *addr)
670{
671 struct hinic_dev *nic_dev = netdev_priv(netdev);
672 u16 vid = 0;
673 int err;
674
675 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
676 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
677
678 down(&nic_dev->mgmt_lock);
679
680 do {
681 err = hinic_port_add_mac(nic_dev, addr, vid);
682 if (err) {
683 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
684 break;
685 }
686
687 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
688 } while (vid != VLAN_N_VID);
689
690 up(&nic_dev->mgmt_lock);
691 return err;
692}
693
694
695
696
697
698
699
700
701static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
702{
703 struct hinic_dev *nic_dev = netdev_priv(netdev);
704 u16 vid = 0;
705 int err;
706
707 if (!is_valid_ether_addr(addr))
708 return -EADDRNOTAVAIL;
709
710 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
711 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
712
713 down(&nic_dev->mgmt_lock);
714
715 do {
716 err = hinic_port_del_mac(nic_dev, addr, vid);
717 if (err) {
718 netif_err(nic_dev, drv, netdev,
719 "Failed to delete mac\n");
720 break;
721 }
722
723 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
724 } while (vid != VLAN_N_VID);
725
726 up(&nic_dev->mgmt_lock);
727 return err;
728}
729
730static int hinic_vlan_rx_add_vid(struct net_device *netdev,
731 __always_unused __be16 proto, u16 vid)
732{
733 struct hinic_dev *nic_dev = netdev_priv(netdev);
734 int ret, err;
735
736 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
737
738 down(&nic_dev->mgmt_lock);
739
740 err = hinic_port_add_vlan(nic_dev, vid);
741 if (err) {
742 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
743 goto err_vlan_add;
744 }
745
746 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
747 if (err && err != HINIC_PF_SET_VF_ALREADY) {
748 netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
749 goto err_add_mac;
750 }
751
752 bitmap_set(nic_dev->vlan_bitmap, vid, 1);
753
754 up(&nic_dev->mgmt_lock);
755 return 0;
756
757err_add_mac:
758 ret = hinic_port_del_vlan(nic_dev, vid);
759 if (ret)
760 netif_err(nic_dev, drv, netdev,
761 "Failed to revert by removing vlan\n");
762
763err_vlan_add:
764 up(&nic_dev->mgmt_lock);
765 return err;
766}
767
768static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
769 __always_unused __be16 proto, u16 vid)
770{
771 struct hinic_dev *nic_dev = netdev_priv(netdev);
772 int err;
773
774 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
775
776 down(&nic_dev->mgmt_lock);
777
778 err = hinic_port_del_vlan(nic_dev, vid);
779 if (err) {
780 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
781 goto err_del_vlan;
782 }
783
784 bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
785
786 up(&nic_dev->mgmt_lock);
787 return 0;
788
789err_del_vlan:
790 up(&nic_dev->mgmt_lock);
791 return err;
792}
793
794static void set_rx_mode(struct work_struct *work)
795{
796 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
797 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
798
799 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
800
801 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
802 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
803}
804
805static void hinic_set_rx_mode(struct net_device *netdev)
806{
807 struct hinic_dev *nic_dev = netdev_priv(netdev);
808 struct hinic_rx_mode_work *rx_mode_work;
809 u32 rx_mode;
810
811 rx_mode_work = &nic_dev->rx_mode_work;
812
813 rx_mode = HINIC_RX_MODE_UC |
814 HINIC_RX_MODE_MC |
815 HINIC_RX_MODE_BC;
816
817 if (netdev->flags & IFF_PROMISC) {
818 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
819 rx_mode |= HINIC_RX_MODE_PROMISC;
820 } else if (netdev->flags & IFF_ALLMULTI) {
821 rx_mode |= HINIC_RX_MODE_MC_ALL;
822 }
823
824 rx_mode_work->rx_mode = rx_mode;
825
826 queue_work(nic_dev->workq, &rx_mode_work->work);
827}
828
829static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue)
830{
831 struct hinic_dev *nic_dev = netdev_priv(netdev);
832 u16 sw_pi, hw_ci, sw_ci;
833 struct hinic_sq *sq;
834 u16 num_sqs, q_id;
835
836 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev);
837
838 netif_err(nic_dev, drv, netdev, "Tx timeout\n");
839
840 for (q_id = 0; q_id < num_sqs; q_id++) {
841 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id)))
842 continue;
843
844 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id);
845 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask;
846 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask;
847 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask;
848 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n",
849 q_id, sw_pi, hw_ci, sw_ci,
850 nic_dev->txqs[q_id].napi.state);
851 }
852}
853
854static void hinic_get_stats64(struct net_device *netdev,
855 struct rtnl_link_stats64 *stats)
856{
857 struct hinic_dev *nic_dev = netdev_priv(netdev);
858 struct hinic_rxq_stats *nic_rx_stats;
859 struct hinic_txq_stats *nic_tx_stats;
860
861 nic_rx_stats = &nic_dev->rx_stats;
862 nic_tx_stats = &nic_dev->tx_stats;
863
864 down(&nic_dev->mgmt_lock);
865
866 if (nic_dev->flags & HINIC_INTF_UP)
867 update_nic_stats(nic_dev);
868
869 up(&nic_dev->mgmt_lock);
870
871 stats->rx_bytes = nic_rx_stats->bytes;
872 stats->rx_packets = nic_rx_stats->pkts;
873 stats->rx_errors = nic_rx_stats->errors;
874
875 stats->tx_bytes = nic_tx_stats->bytes;
876 stats->tx_packets = nic_tx_stats->pkts;
877 stats->tx_errors = nic_tx_stats->tx_dropped;
878}
879
880static int hinic_set_features(struct net_device *netdev,
881 netdev_features_t features)
882{
883 struct hinic_dev *nic_dev = netdev_priv(netdev);
884
885 return set_features(nic_dev, nic_dev->netdev->features,
886 features, false);
887}
888
889static netdev_features_t hinic_fix_features(struct net_device *netdev,
890 netdev_features_t features)
891{
892 struct hinic_dev *nic_dev = netdev_priv(netdev);
893
894
895 if (!(features & NETIF_F_RXCSUM)) {
896 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n");
897 features &= ~NETIF_F_LRO;
898 }
899
900 return features;
901}
902
903static const struct net_device_ops hinic_netdev_ops = {
904 .ndo_open = hinic_open,
905 .ndo_stop = hinic_close,
906 .ndo_change_mtu = hinic_change_mtu,
907 .ndo_set_mac_address = hinic_set_mac_addr,
908 .ndo_validate_addr = eth_validate_addr,
909 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
910 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
911 .ndo_set_rx_mode = hinic_set_rx_mode,
912 .ndo_start_xmit = hinic_xmit_frame,
913 .ndo_tx_timeout = hinic_tx_timeout,
914 .ndo_get_stats64 = hinic_get_stats64,
915 .ndo_fix_features = hinic_fix_features,
916 .ndo_set_features = hinic_set_features,
917 .ndo_set_vf_mac = hinic_ndo_set_vf_mac,
918 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan,
919 .ndo_get_vf_config = hinic_ndo_get_vf_config,
920 .ndo_set_vf_trust = hinic_ndo_set_vf_trust,
921 .ndo_set_vf_rate = hinic_ndo_set_vf_bw,
922 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk,
923 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state,
924};
925
926static const struct net_device_ops hinicvf_netdev_ops = {
927 .ndo_open = hinic_open,
928 .ndo_stop = hinic_close,
929 .ndo_change_mtu = hinic_change_mtu,
930 .ndo_set_mac_address = hinic_set_mac_addr,
931 .ndo_validate_addr = eth_validate_addr,
932 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
933 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
934 .ndo_set_rx_mode = hinic_set_rx_mode,
935 .ndo_start_xmit = hinic_xmit_frame,
936 .ndo_tx_timeout = hinic_tx_timeout,
937 .ndo_get_stats64 = hinic_get_stats64,
938 .ndo_fix_features = hinic_fix_features,
939 .ndo_set_features = hinic_set_features,
940};
941
942static void netdev_features_init(struct net_device *netdev)
943{
944 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
945 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
946 NETIF_F_RXCSUM | NETIF_F_LRO |
947 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
948 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM;
949
950 netdev->vlan_features = netdev->hw_features;
951
952 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
953
954 netdev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SCTP_CRC |
955 NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN |
956 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_UDP_TUNNEL;
957}
958
959static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev)
960{
961 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg;
962 struct hinic_pause_config pause_info = {0};
963 struct hinic_port_cap port_cap = {0};
964
965 if (hinic_port_get_cap(nic_dev, &port_cap))
966 return;
967
968 mutex_lock(&nic_cfg->cfg_mutex);
969 if (nic_cfg->pause_set || !port_cap.autoneg_state) {
970 nic_cfg->auto_neg = port_cap.autoneg_state;
971 pause_info.auto_neg = nic_cfg->auto_neg;
972 pause_info.rx_pause = nic_cfg->rx_pause;
973 pause_info.tx_pause = nic_cfg->tx_pause;
974 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info);
975 }
976 mutex_unlock(&nic_cfg->cfg_mutex);
977}
978
979
980
981
982
983
984
985
986
987
988
989static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
990 void *buf_out, u16 *out_size)
991{
992 struct hinic_port_link_status *link_status, *ret_link_status;
993 struct hinic_dev *nic_dev = handle;
994
995 link_status = buf_in;
996
997 if (link_status->link == HINIC_LINK_STATE_UP) {
998 down(&nic_dev->mgmt_lock);
999
1000 nic_dev->flags |= HINIC_LINK_UP;
1001 nic_dev->cable_unplugged = false;
1002 nic_dev->module_unrecognized = false;
1003
1004 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
1005 (HINIC_LINK_UP | HINIC_INTF_UP)) {
1006 netif_carrier_on(nic_dev->netdev);
1007 netif_tx_wake_all_queues(nic_dev->netdev);
1008 }
1009
1010 up(&nic_dev->mgmt_lock);
1011
1012 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
1013 hinic_refresh_nic_cfg(nic_dev);
1014
1015 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
1016 } else {
1017 down(&nic_dev->mgmt_lock);
1018
1019 nic_dev->flags &= ~HINIC_LINK_UP;
1020
1021 netif_carrier_off(nic_dev->netdev);
1022 netif_tx_disable(nic_dev->netdev);
1023
1024 up(&nic_dev->mgmt_lock);
1025
1026 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
1027 }
1028
1029 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
1030 hinic_notify_all_vfs_link_changed(nic_dev->hwdev,
1031 link_status->link);
1032
1033 ret_link_status = buf_out;
1034 ret_link_status->status = 0;
1035
1036 *out_size = sizeof(*ret_link_status);
1037}
1038
1039static void cable_plug_event(void *handle,
1040 void *buf_in, u16 in_size,
1041 void *buf_out, u16 *out_size)
1042{
1043 struct hinic_cable_plug_event *plug_event = buf_in;
1044 struct hinic_dev *nic_dev = handle;
1045
1046 nic_dev->cable_unplugged = plug_event->plugged ? false : true;
1047
1048 *out_size = sizeof(*plug_event);
1049 plug_event = buf_out;
1050 plug_event->status = 0;
1051}
1052
1053static void link_err_event(void *handle,
1054 void *buf_in, u16 in_size,
1055 void *buf_out, u16 *out_size)
1056{
1057 struct hinic_link_err_event *link_err = buf_in;
1058 struct hinic_dev *nic_dev = handle;
1059
1060 if (link_err->err_type >= LINK_ERR_NUM)
1061 netif_info(nic_dev, link, nic_dev->netdev,
1062 "Link failed, Unknown error type: 0x%x\n",
1063 link_err->err_type);
1064 else
1065 nic_dev->module_unrecognized = true;
1066
1067 *out_size = sizeof(*link_err);
1068 link_err = buf_out;
1069 link_err->status = 0;
1070}
1071
1072static int set_features(struct hinic_dev *nic_dev,
1073 netdev_features_t pre_features,
1074 netdev_features_t features, bool force_change)
1075{
1076 netdev_features_t changed = force_change ? ~0 : pre_features ^ features;
1077 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN;
1078 netdev_features_t failed_features = 0;
1079 int ret = 0;
1080 int err = 0;
1081
1082 if (changed & NETIF_F_TSO) {
1083 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ?
1084 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE);
1085 if (ret) {
1086 err = ret;
1087 failed_features |= NETIF_F_TSO;
1088 }
1089 }
1090
1091 if (changed & NETIF_F_RXCSUM) {
1092 ret = hinic_set_rx_csum_offload(nic_dev, csum_en);
1093 if (ret) {
1094 err = ret;
1095 failed_features |= NETIF_F_RXCSUM;
1096 }
1097 }
1098
1099 if (changed & NETIF_F_LRO) {
1100 ret = hinic_set_rx_lro_state(nic_dev,
1101 !!(features & NETIF_F_LRO),
1102 HINIC_LRO_RX_TIMER_DEFAULT,
1103 HINIC_LRO_MAX_WQE_NUM_DEFAULT);
1104 if (ret) {
1105 err = ret;
1106 failed_features |= NETIF_F_LRO;
1107 }
1108 }
1109
1110 if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
1111 ret = hinic_set_rx_vlan_offload(nic_dev,
1112 !!(features &
1113 NETIF_F_HW_VLAN_CTAG_RX));
1114 if (ret) {
1115 err = ret;
1116 failed_features |= NETIF_F_HW_VLAN_CTAG_RX;
1117 }
1118 }
1119
1120 if (err) {
1121 nic_dev->netdev->features = features ^ failed_features;
1122 return -EIO;
1123 }
1124
1125 return 0;
1126}
1127
1128static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev)
1129{
1130 u64 size;
1131 u16 i;
1132
1133 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps;
1134 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL);
1135 if (!nic_dev->rx_intr_coalesce)
1136 return -ENOMEM;
1137 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL);
1138 if (!nic_dev->tx_intr_coalesce) {
1139 kfree(nic_dev->rx_intr_coalesce);
1140 return -ENOMEM;
1141 }
1142
1143 for (i = 0; i < nic_dev->max_qps; i++) {
1144 nic_dev->rx_intr_coalesce[i].pending_limt =
1145 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT;
1146 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg =
1147 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG;
1148 nic_dev->rx_intr_coalesce[i].resend_timer_cfg =
1149 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG;
1150 nic_dev->tx_intr_coalesce[i].pending_limt =
1151 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT;
1152 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg =
1153 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG;
1154 nic_dev->tx_intr_coalesce[i].resend_timer_cfg =
1155 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG;
1156 }
1157
1158 return 0;
1159}
1160
1161static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev)
1162{
1163 kfree(nic_dev->tx_intr_coalesce);
1164 kfree(nic_dev->rx_intr_coalesce);
1165}
1166
1167
1168
1169
1170
1171
1172
1173static int nic_dev_init(struct pci_dev *pdev)
1174{
1175 struct hinic_rx_mode_work *rx_mode_work;
1176 struct hinic_txq_stats *tx_stats;
1177 struct hinic_rxq_stats *rx_stats;
1178 struct hinic_dev *nic_dev;
1179 struct net_device *netdev;
1180 struct hinic_hwdev *hwdev;
1181 struct devlink *devlink;
1182 u8 addr[ETH_ALEN];
1183 int err, num_qps;
1184
1185 devlink = hinic_devlink_alloc(&pdev->dev);
1186 if (!devlink) {
1187 dev_err(&pdev->dev, "Hinic devlink alloc failed\n");
1188 return -ENOMEM;
1189 }
1190
1191 hwdev = hinic_init_hwdev(pdev, devlink);
1192 if (IS_ERR(hwdev)) {
1193 dev_err(&pdev->dev, "Failed to initialize HW device\n");
1194 hinic_devlink_free(devlink);
1195 return PTR_ERR(hwdev);
1196 }
1197
1198 num_qps = hinic_hwdev_num_qps(hwdev);
1199 if (num_qps <= 0) {
1200 dev_err(&pdev->dev, "Invalid number of QPS\n");
1201 err = -EINVAL;
1202 goto err_num_qps;
1203 }
1204
1205 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
1206 if (!netdev) {
1207 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
1208 err = -ENOMEM;
1209 goto err_alloc_etherdev;
1210 }
1211
1212 if (!HINIC_IS_VF(hwdev->hwif))
1213 netdev->netdev_ops = &hinic_netdev_ops;
1214 else
1215 netdev->netdev_ops = &hinicvf_netdev_ops;
1216
1217 netdev->max_mtu = ETH_MAX_MTU;
1218
1219 nic_dev = netdev_priv(netdev);
1220 nic_dev->netdev = netdev;
1221 nic_dev->hwdev = hwdev;
1222 nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
1223 nic_dev->flags = 0;
1224 nic_dev->txqs = NULL;
1225 nic_dev->rxqs = NULL;
1226 nic_dev->tx_weight = tx_weight;
1227 nic_dev->rx_weight = rx_weight;
1228 nic_dev->sq_depth = HINIC_SQ_DEPTH;
1229 nic_dev->rq_depth = HINIC_RQ_DEPTH;
1230 nic_dev->sriov_info.hwdev = hwdev;
1231 nic_dev->sriov_info.pdev = pdev;
1232 nic_dev->max_qps = num_qps;
1233 nic_dev->devlink = devlink;
1234
1235 hinic_set_ethtool_ops(netdev);
1236
1237 sema_init(&nic_dev->mgmt_lock, 1);
1238
1239 tx_stats = &nic_dev->tx_stats;
1240 rx_stats = &nic_dev->rx_stats;
1241
1242 u64_stats_init(&tx_stats->syncp);
1243 u64_stats_init(&rx_stats->syncp);
1244
1245 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
1246 VLAN_BITMAP_SIZE(nic_dev),
1247 GFP_KERNEL);
1248 if (!nic_dev->vlan_bitmap) {
1249 err = -ENOMEM;
1250 goto err_vlan_bitmap;
1251 }
1252
1253 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
1254 if (!nic_dev->workq) {
1255 err = -ENOMEM;
1256 goto err_workq;
1257 }
1258
1259 pci_set_drvdata(pdev, netdev);
1260
1261 err = hinic_port_get_mac(nic_dev, addr);
1262 if (err) {
1263 dev_err(&pdev->dev, "Failed to get mac address\n");
1264 goto err_get_mac;
1265 }
1266 eth_hw_addr_set(netdev, addr);
1267
1268 if (!is_valid_ether_addr(netdev->dev_addr)) {
1269 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) {
1270 dev_err(&pdev->dev, "Invalid MAC address\n");
1271 err = -EIO;
1272 goto err_add_mac;
1273 }
1274
1275 dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n",
1276 netdev->dev_addr);
1277 eth_hw_addr_random(netdev);
1278 }
1279
1280 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0);
1281 if (err && err != HINIC_PF_SET_VF_ALREADY) {
1282 dev_err(&pdev->dev, "Failed to add mac\n");
1283 goto err_add_mac;
1284 }
1285
1286 err = hinic_port_set_mtu(nic_dev, netdev->mtu);
1287 if (err) {
1288 dev_err(&pdev->dev, "Failed to set mtu\n");
1289 goto err_set_mtu;
1290 }
1291
1292 rx_mode_work = &nic_dev->rx_mode_work;
1293 INIT_WORK(&rx_mode_work->work, set_rx_mode);
1294
1295 netdev_features_init(netdev);
1296
1297 netif_carrier_off(netdev);
1298
1299 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
1300 nic_dev, link_status_event_handler);
1301 hinic_hwdev_cb_register(nic_dev->hwdev,
1302 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT,
1303 nic_dev, cable_plug_event);
1304 hinic_hwdev_cb_register(nic_dev->hwdev,
1305 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT,
1306 nic_dev, link_err_event);
1307
1308 err = set_features(nic_dev, 0, nic_dev->netdev->features, true);
1309 if (err)
1310 goto err_set_features;
1311
1312
1313 err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0);
1314 if (err)
1315 goto err_set_pfc;
1316
1317 SET_NETDEV_DEV(netdev, &pdev->dev);
1318
1319 err = hinic_init_intr_coalesce(nic_dev);
1320 if (err) {
1321 dev_err(&pdev->dev, "Failed to init_intr_coalesce\n");
1322 goto err_init_intr;
1323 }
1324
1325 hinic_dbg_init(nic_dev);
1326
1327 hinic_func_tbl_dbgfs_init(nic_dev);
1328
1329 err = hinic_func_table_debug_add(nic_dev);
1330 if (err) {
1331 dev_err(&pdev->dev, "Failed to add func_table debug\n");
1332 goto err_add_func_table_dbg;
1333 }
1334
1335 err = register_netdev(netdev);
1336 if (err) {
1337 dev_err(&pdev->dev, "Failed to register netdev\n");
1338 goto err_reg_netdev;
1339 }
1340
1341 return 0;
1342
1343err_reg_netdev:
1344 hinic_func_table_debug_rem(nic_dev);
1345err_add_func_table_dbg:
1346 hinic_func_tbl_dbgfs_uninit(nic_dev);
1347 hinic_dbg_uninit(nic_dev);
1348 hinic_free_intr_coalesce(nic_dev);
1349err_init_intr:
1350err_set_pfc:
1351err_set_features:
1352 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1353 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT);
1354 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1355 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT);
1356 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1357 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1358 cancel_work_sync(&rx_mode_work->work);
1359
1360err_set_mtu:
1361 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0);
1362err_add_mac:
1363err_get_mac:
1364 pci_set_drvdata(pdev, NULL);
1365 destroy_workqueue(nic_dev->workq);
1366err_workq:
1367err_vlan_bitmap:
1368 free_netdev(netdev);
1369
1370err_alloc_etherdev:
1371err_num_qps:
1372 hinic_free_hwdev(hwdev);
1373 hinic_devlink_free(devlink);
1374 return err;
1375}
1376
1377static int hinic_probe(struct pci_dev *pdev,
1378 const struct pci_device_id *id)
1379{
1380 int err = pci_enable_device(pdev);
1381
1382 if (err)
1383 return dev_err_probe(&pdev->dev, err, "Failed to enable PCI device\n");
1384
1385 err = pci_request_regions(pdev, HINIC_DRV_NAME);
1386 if (err) {
1387 dev_err(&pdev->dev, "Failed to request PCI regions\n");
1388 goto err_pci_regions;
1389 }
1390
1391 pci_set_master(pdev);
1392
1393 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
1394 if (err) {
1395 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1396 goto err_dma_mask;
1397 }
1398
1399 err = nic_dev_init(pdev);
1400 if (err) {
1401 dev_err(&pdev->dev, "Failed to initialize NIC device\n");
1402 goto err_nic_dev_init;
1403 }
1404
1405 dev_info(&pdev->dev, "HiNIC driver - probed\n");
1406 return 0;
1407
1408err_nic_dev_init:
1409err_dma_mask:
1410 pci_release_regions(pdev);
1411
1412err_pci_regions:
1413 pci_disable_device(pdev);
1414 return err;
1415}
1416
1417#define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000
1418
1419static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev)
1420{
1421 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info;
1422 u32 loop_cnt = 0;
1423
1424 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state);
1425 usleep_range(9900, 10000);
1426
1427 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) {
1428 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) &&
1429 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state))
1430 return;
1431
1432 usleep_range(9900, 10000);
1433 loop_cnt++;
1434 }
1435}
1436
1437static void hinic_remove(struct pci_dev *pdev)
1438{
1439 struct net_device *netdev = pci_get_drvdata(pdev);
1440 struct hinic_dev *nic_dev = netdev_priv(netdev);
1441 struct devlink *devlink = nic_dev->devlink;
1442 struct hinic_rx_mode_work *rx_mode_work;
1443
1444 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) {
1445 wait_sriov_cfg_complete(nic_dev);
1446 hinic_pci_sriov_disable(pdev);
1447 }
1448
1449 unregister_netdev(netdev);
1450
1451 hinic_func_table_debug_rem(nic_dev);
1452
1453 hinic_func_tbl_dbgfs_uninit(nic_dev);
1454
1455 hinic_dbg_uninit(nic_dev);
1456
1457 hinic_free_intr_coalesce(nic_dev);
1458
1459 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0);
1460
1461 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1462 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT);
1463 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1464 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT);
1465 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1466 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1467
1468 rx_mode_work = &nic_dev->rx_mode_work;
1469 cancel_work_sync(&rx_mode_work->work);
1470
1471 pci_set_drvdata(pdev, NULL);
1472
1473 destroy_workqueue(nic_dev->workq);
1474
1475 hinic_free_hwdev(nic_dev->hwdev);
1476
1477 free_netdev(netdev);
1478
1479 hinic_devlink_free(devlink);
1480
1481 pci_release_regions(pdev);
1482 pci_disable_device(pdev);
1483
1484 dev_info(&pdev->dev, "HiNIC driver - removed\n");
1485}
1486
1487static void hinic_shutdown(struct pci_dev *pdev)
1488{
1489 pci_disable_device(pdev);
1490}
1491
1492static const struct pci_device_id hinic_pci_table[] = {
1493 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
1494 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
1495 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0},
1496 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0},
1497 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0},
1498 { 0, 0}
1499};
1500MODULE_DEVICE_TABLE(pci, hinic_pci_table);
1501
1502static struct pci_driver hinic_driver = {
1503 .name = HINIC_DRV_NAME,
1504 .id_table = hinic_pci_table,
1505 .probe = hinic_probe,
1506 .remove = hinic_remove,
1507 .shutdown = hinic_shutdown,
1508 .sriov_configure = hinic_pci_sriov_configure,
1509};
1510
1511static int __init hinic_module_init(void)
1512{
1513 hinic_dbg_register_debugfs(HINIC_DRV_NAME);
1514 return pci_register_driver(&hinic_driver);
1515}
1516
1517static void __exit hinic_module_exit(void)
1518{
1519 pci_unregister_driver(&hinic_driver);
1520 hinic_dbg_unregister_debugfs();
1521}
1522
1523module_init(hinic_module_init);
1524module_exit(hinic_module_exit);
1525
