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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 size_t txq_size;
148
149 if (nic_dev->txqs)
150 return -EINVAL;
151
152 txq_size = num_txqs * sizeof(*nic_dev->txqs);
153 nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL);
154 if (!nic_dev->txqs)
155 return -ENOMEM;
156
157 hinic_sq_dbgfs_init(nic_dev);
158
159 for (i = 0; i < num_txqs; i++) {
160 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
161
162 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
163 if (err) {
164 netif_err(nic_dev, drv, netdev,
165 "Failed to init Txq\n");
166 goto err_init_txq;
167 }
168
169 err = hinic_sq_debug_add(nic_dev, i);
170 if (err) {
171 netif_err(nic_dev, drv, netdev,
172 "Failed to add SQ%d debug\n", i);
173 goto err_add_sq_dbg;
174 }
175 }
176
177 return 0;
178
179err_add_sq_dbg:
180 hinic_clean_txq(&nic_dev->txqs[i]);
181err_init_txq:
182 for (j = 0; j < i; j++) {
183 hinic_sq_debug_rem(nic_dev->txqs[j].sq);
184 hinic_clean_txq(&nic_dev->txqs[j]);
185 }
186
187 hinic_sq_dbgfs_uninit(nic_dev);
188
189 devm_kfree(&netdev->dev, nic_dev->txqs);
190 return err;
191}
192
193static void enable_txqs_napi(struct hinic_dev *nic_dev)
194{
195 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
196 int i;
197
198 for (i = 0; i < num_txqs; i++)
199 napi_enable(&nic_dev->txqs[i].napi);
200}
201
202static void disable_txqs_napi(struct hinic_dev *nic_dev)
203{
204 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
205 int i;
206
207 for (i = 0; i < num_txqs; i++)
208 napi_disable(&nic_dev->txqs[i].napi);
209}
210
211
212
213
214
215static void free_txqs(struct hinic_dev *nic_dev)
216{
217 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
218 struct net_device *netdev = nic_dev->netdev;
219
220 if (!nic_dev->txqs)
221 return;
222
223 for (i = 0; i < num_txqs; i++) {
224 hinic_sq_debug_rem(nic_dev->txqs[i].sq);
225 hinic_clean_txq(&nic_dev->txqs[i]);
226 }
227
228 hinic_sq_dbgfs_uninit(nic_dev);
229
230 devm_kfree(&netdev->dev, nic_dev->txqs);
231 nic_dev->txqs = NULL;
232}
233
234
235
236
237
238
239
240static int create_rxqs(struct hinic_dev *nic_dev)
241{
242 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
243 struct net_device *netdev = nic_dev->netdev;
244 size_t rxq_size;
245
246 if (nic_dev->rxqs)
247 return -EINVAL;
248
249 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs);
250 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL);
251 if (!nic_dev->rxqs)
252 return -ENOMEM;
253
254 hinic_rq_dbgfs_init(nic_dev);
255
256 for (i = 0; i < num_rxqs; i++) {
257 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
258
259 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
260 if (err) {
261 netif_err(nic_dev, drv, netdev,
262 "Failed to init rxq\n");
263 goto err_init_rxq;
264 }
265
266 err = hinic_rq_debug_add(nic_dev, i);
267 if (err) {
268 netif_err(nic_dev, drv, netdev,
269 "Failed to add RQ%d debug\n", i);
270 goto err_add_rq_dbg;
271 }
272 }
273
274 return 0;
275
276err_add_rq_dbg:
277 hinic_clean_rxq(&nic_dev->rxqs[i]);
278err_init_rxq:
279 for (j = 0; j < i; j++) {
280 hinic_rq_debug_rem(nic_dev->rxqs[j].rq);
281 hinic_clean_rxq(&nic_dev->rxqs[j]);
282 }
283
284 hinic_rq_dbgfs_uninit(nic_dev);
285
286 devm_kfree(&netdev->dev, nic_dev->rxqs);
287 return err;
288}
289
290
291
292
293
294static void free_rxqs(struct hinic_dev *nic_dev)
295{
296 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
297 struct net_device *netdev = nic_dev->netdev;
298
299 if (!nic_dev->rxqs)
300 return;
301
302 for (i = 0; i < num_rxqs; i++) {
303 hinic_rq_debug_rem(nic_dev->rxqs[i].rq);
304 hinic_clean_rxq(&nic_dev->rxqs[i]);
305 }
306
307 hinic_rq_dbgfs_uninit(nic_dev);
308
309 devm_kfree(&netdev->dev, nic_dev->rxqs);
310 nic_dev->rxqs = NULL;
311}
312
313static int hinic_configure_max_qnum(struct hinic_dev *nic_dev)
314{
315 return hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps);
316}
317
318static int hinic_rss_init(struct hinic_dev *nic_dev)
319{
320 u8 default_rss_key[HINIC_RSS_KEY_SIZE];
321 u8 tmpl_idx = nic_dev->rss_tmpl_idx;
322 u32 *indir_tbl;
323 int err, i;
324
325 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL);
326 if (!indir_tbl)
327 return -ENOMEM;
328
329 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key));
330 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++)
331 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss);
332
333 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key);
334 if (err)
335 goto out;
336
337 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl);
338 if (err)
339 goto out;
340
341 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type);
342 if (err)
343 goto out;
344
345 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx,
346 nic_dev->rss_hash_engine);
347 if (err)
348 goto out;
349
350 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx);
351 if (err)
352 goto out;
353
354out:
355 kfree(indir_tbl);
356 return err;
357}
358
359static void hinic_rss_deinit(struct hinic_dev *nic_dev)
360{
361 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx);
362}
363
364static void hinic_init_rss_parameters(struct hinic_dev *nic_dev)
365{
366 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR;
367 nic_dev->rss_type.tcp_ipv6_ext = 1;
368 nic_dev->rss_type.ipv6_ext = 1;
369 nic_dev->rss_type.tcp_ipv6 = 1;
370 nic_dev->rss_type.ipv6 = 1;
371 nic_dev->rss_type.tcp_ipv4 = 1;
372 nic_dev->rss_type.ipv4 = 1;
373 nic_dev->rss_type.udp_ipv6 = 1;
374 nic_dev->rss_type.udp_ipv4 = 1;
375}
376
377static void hinic_enable_rss(struct hinic_dev *nic_dev)
378{
379 struct net_device *netdev = nic_dev->netdev;
380 struct hinic_hwdev *hwdev = nic_dev->hwdev;
381 struct hinic_hwif *hwif = hwdev->hwif;
382 struct pci_dev *pdev = hwif->pdev;
383 int i, node, err = 0;
384 u16 num_cpus = 0;
385
386 if (nic_dev->max_qps <= 1) {
387 nic_dev->flags &= ~HINIC_RSS_ENABLE;
388 nic_dev->rss_limit = nic_dev->max_qps;
389 nic_dev->num_qps = nic_dev->max_qps;
390 nic_dev->num_rss = nic_dev->max_qps;
391
392 return;
393 }
394
395 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx);
396 if (err) {
397 netif_err(nic_dev, drv, netdev,
398 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n");
399 nic_dev->flags &= ~HINIC_RSS_ENABLE;
400 nic_dev->max_qps = 1;
401 nic_dev->rss_limit = nic_dev->max_qps;
402 nic_dev->num_qps = nic_dev->max_qps;
403 nic_dev->num_rss = nic_dev->max_qps;
404
405 return;
406 }
407
408 nic_dev->flags |= HINIC_RSS_ENABLE;
409
410 for (i = 0; i < num_online_cpus(); i++) {
411 node = cpu_to_node(i);
412 if (node == dev_to_node(&pdev->dev))
413 num_cpus++;
414 }
415
416 if (!num_cpus)
417 num_cpus = num_online_cpus();
418
419 nic_dev->num_qps = hinic_hwdev_num_qps(hwdev);
420 nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus);
421
422 nic_dev->rss_limit = nic_dev->num_qps;
423 nic_dev->num_rss = nic_dev->num_qps;
424
425 hinic_init_rss_parameters(nic_dev);
426 err = hinic_rss_init(nic_dev);
427 if (err)
428 netif_err(nic_dev, drv, netdev, "Failed to init rss\n");
429}
430
431int hinic_open(struct net_device *netdev)
432{
433 struct hinic_dev *nic_dev = netdev_priv(netdev);
434 enum hinic_port_link_state link_state;
435 int err, ret;
436
437 if (!(nic_dev->flags & HINIC_INTF_UP)) {
438 err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth,
439 nic_dev->rq_depth);
440 if (err) {
441 netif_err(nic_dev, drv, netdev,
442 "Failed - HW interface up\n");
443 return err;
444 }
445 }
446
447 err = create_txqs(nic_dev);
448 if (err) {
449 netif_err(nic_dev, drv, netdev,
450 "Failed to create Tx queues\n");
451 goto err_create_txqs;
452 }
453
454 enable_txqs_napi(nic_dev);
455
456 err = create_rxqs(nic_dev);
457 if (err) {
458 netif_err(nic_dev, drv, netdev,
459 "Failed to create Rx queues\n");
460 goto err_create_rxqs;
461 }
462
463 hinic_enable_rss(nic_dev);
464
465 err = hinic_configure_max_qnum(nic_dev);
466 if (err) {
467 netif_err(nic_dev, drv, nic_dev->netdev,
468 "Failed to configure the maximum number of queues\n");
469 goto err_port_state;
470 }
471
472 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps);
473 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps);
474
475 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
476 if (err) {
477 netif_err(nic_dev, drv, netdev,
478 "Failed to set port state\n");
479 goto err_port_state;
480 }
481
482 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
483 if (err) {
484 netif_err(nic_dev, drv, netdev,
485 "Failed to set func port state\n");
486 goto err_func_port_state;
487 }
488
489 down(&nic_dev->mgmt_lock);
490
491 err = hinic_port_link_state(nic_dev, &link_state);
492 if (err) {
493 netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
494 goto err_port_link;
495 }
496
497 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
498 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state);
499
500 if (link_state == HINIC_LINK_STATE_UP) {
501 nic_dev->flags |= HINIC_LINK_UP;
502 nic_dev->cable_unplugged = false;
503 nic_dev->module_unrecognized = false;
504 }
505
506 nic_dev->flags |= HINIC_INTF_UP;
507
508 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
509 (HINIC_LINK_UP | HINIC_INTF_UP)) {
510 netif_info(nic_dev, drv, netdev, "link + intf UP\n");
511 netif_carrier_on(netdev);
512 netif_tx_wake_all_queues(netdev);
513 }
514
515 up(&nic_dev->mgmt_lock);
516
517 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
518 return 0;
519
520err_port_link:
521 up(&nic_dev->mgmt_lock);
522 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
523 if (ret)
524 netif_warn(nic_dev, drv, netdev,
525 "Failed to revert func port state\n");
526
527err_func_port_state:
528 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
529 if (ret)
530 netif_warn(nic_dev, drv, netdev,
531 "Failed to revert port state\n");
532err_port_state:
533 free_rxqs(nic_dev);
534 if (nic_dev->flags & HINIC_RSS_ENABLE) {
535 hinic_rss_deinit(nic_dev);
536 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
537 }
538
539err_create_rxqs:
540 disable_txqs_napi(nic_dev);
541 free_txqs(nic_dev);
542
543err_create_txqs:
544 if (!(nic_dev->flags & HINIC_INTF_UP))
545 hinic_hwdev_ifdown(nic_dev->hwdev);
546 return err;
547}
548
549int hinic_close(struct net_device *netdev)
550{
551 struct hinic_dev *nic_dev = netdev_priv(netdev);
552 unsigned int flags;
553
554
555 disable_txqs_napi(nic_dev);
556
557 down(&nic_dev->mgmt_lock);
558
559 flags = nic_dev->flags;
560 nic_dev->flags &= ~HINIC_INTF_UP;
561
562 netif_carrier_off(netdev);
563 netif_tx_disable(netdev);
564
565 update_nic_stats(nic_dev);
566
567 up(&nic_dev->mgmt_lock);
568
569 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
570 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0);
571
572 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
573
574 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
575
576 if (nic_dev->flags & HINIC_RSS_ENABLE) {
577 hinic_rss_deinit(nic_dev);
578 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
579 }
580
581 free_rxqs(nic_dev);
582 free_txqs(nic_dev);
583
584 if (flags & HINIC_INTF_UP)
585 hinic_hwdev_ifdown(nic_dev->hwdev);
586
587 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
588 return 0;
589}
590
591static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
592{
593 struct hinic_dev *nic_dev = netdev_priv(netdev);
594 int err;
595
596 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
597
598 err = hinic_port_set_mtu(nic_dev, new_mtu);
599 if (err)
600 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
601 else
602 netdev->mtu = new_mtu;
603
604 return err;
605}
606
607
608
609
610
611
612
613
614static int change_mac_addr(struct net_device *netdev, const u8 *addr)
615{
616 struct hinic_dev *nic_dev = netdev_priv(netdev);
617 u16 vid = 0;
618 int err;
619
620 if (!is_valid_ether_addr(addr))
621 return -EADDRNOTAVAIL;
622
623 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
624 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
625
626 down(&nic_dev->mgmt_lock);
627
628 do {
629 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
630 if (err) {
631 netif_err(nic_dev, drv, netdev,
632 "Failed to delete mac\n");
633 break;
634 }
635
636 err = hinic_port_add_mac(nic_dev, addr, vid);
637 if (err) {
638 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
639 break;
640 }
641
642 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
643 } while (vid != VLAN_N_VID);
644
645 up(&nic_dev->mgmt_lock);
646 return err;
647}
648
649static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
650{
651 unsigned char new_mac[ETH_ALEN];
652 struct sockaddr *saddr = addr;
653 int err;
654
655 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
656
657 err = change_mac_addr(netdev, new_mac);
658 if (!err)
659 memcpy(netdev->dev_addr, new_mac, ETH_ALEN);
660
661 return err;
662}
663
664
665
666
667
668
669
670
671static int add_mac_addr(struct net_device *netdev, const u8 *addr)
672{
673 struct hinic_dev *nic_dev = netdev_priv(netdev);
674 u16 vid = 0;
675 int err;
676
677 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
678 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
679
680 down(&nic_dev->mgmt_lock);
681
682 do {
683 err = hinic_port_add_mac(nic_dev, addr, vid);
684 if (err) {
685 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
686 break;
687 }
688
689 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
690 } while (vid != VLAN_N_VID);
691
692 up(&nic_dev->mgmt_lock);
693 return err;
694}
695
696
697
698
699
700
701
702
703static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
704{
705 struct hinic_dev *nic_dev = netdev_priv(netdev);
706 u16 vid = 0;
707 int err;
708
709 if (!is_valid_ether_addr(addr))
710 return -EADDRNOTAVAIL;
711
712 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
713 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
714
715 down(&nic_dev->mgmt_lock);
716
717 do {
718 err = hinic_port_del_mac(nic_dev, addr, vid);
719 if (err) {
720 netif_err(nic_dev, drv, netdev,
721 "Failed to delete mac\n");
722 break;
723 }
724
725 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
726 } while (vid != VLAN_N_VID);
727
728 up(&nic_dev->mgmt_lock);
729 return err;
730}
731
732static int hinic_vlan_rx_add_vid(struct net_device *netdev,
733 __always_unused __be16 proto, u16 vid)
734{
735 struct hinic_dev *nic_dev = netdev_priv(netdev);
736 int ret, err;
737
738 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
739
740 down(&nic_dev->mgmt_lock);
741
742 err = hinic_port_add_vlan(nic_dev, vid);
743 if (err) {
744 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
745 goto err_vlan_add;
746 }
747
748 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
749 if (err && err != HINIC_PF_SET_VF_ALREADY) {
750 netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
751 goto err_add_mac;
752 }
753
754 bitmap_set(nic_dev->vlan_bitmap, vid, 1);
755
756 up(&nic_dev->mgmt_lock);
757 return 0;
758
759err_add_mac:
760 ret = hinic_port_del_vlan(nic_dev, vid);
761 if (ret)
762 netif_err(nic_dev, drv, netdev,
763 "Failed to revert by removing vlan\n");
764
765err_vlan_add:
766 up(&nic_dev->mgmt_lock);
767 return err;
768}
769
770static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
771 __always_unused __be16 proto, u16 vid)
772{
773 struct hinic_dev *nic_dev = netdev_priv(netdev);
774 int err;
775
776 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
777
778 down(&nic_dev->mgmt_lock);
779
780 err = hinic_port_del_vlan(nic_dev, vid);
781 if (err) {
782 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
783 goto err_del_vlan;
784 }
785
786 bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
787
788 up(&nic_dev->mgmt_lock);
789 return 0;
790
791err_del_vlan:
792 up(&nic_dev->mgmt_lock);
793 return err;
794}
795
796static void set_rx_mode(struct work_struct *work)
797{
798 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
799 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
800
801 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
802
803 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
804 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
805}
806
807static void hinic_set_rx_mode(struct net_device *netdev)
808{
809 struct hinic_dev *nic_dev = netdev_priv(netdev);
810 struct hinic_rx_mode_work *rx_mode_work;
811 u32 rx_mode;
812
813 rx_mode_work = &nic_dev->rx_mode_work;
814
815 rx_mode = HINIC_RX_MODE_UC |
816 HINIC_RX_MODE_MC |
817 HINIC_RX_MODE_BC;
818
819 if (netdev->flags & IFF_PROMISC) {
820 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
821 rx_mode |= HINIC_RX_MODE_PROMISC;
822 } else if (netdev->flags & IFF_ALLMULTI) {
823 rx_mode |= HINIC_RX_MODE_MC_ALL;
824 }
825
826 rx_mode_work->rx_mode = rx_mode;
827
828 queue_work(nic_dev->workq, &rx_mode_work->work);
829}
830
831static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue)
832{
833 struct hinic_dev *nic_dev = netdev_priv(netdev);
834 u16 sw_pi, hw_ci, sw_ci;
835 struct hinic_sq *sq;
836 u16 num_sqs, q_id;
837
838 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev);
839
840 netif_err(nic_dev, drv, netdev, "Tx timeout\n");
841
842 for (q_id = 0; q_id < num_sqs; q_id++) {
843 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id)))
844 continue;
845
846 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id);
847 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask;
848 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask;
849 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask;
850 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n",
851 q_id, sw_pi, hw_ci, sw_ci,
852 nic_dev->txqs[q_id].napi.state);
853 }
854}
855
856static void hinic_get_stats64(struct net_device *netdev,
857 struct rtnl_link_stats64 *stats)
858{
859 struct hinic_dev *nic_dev = netdev_priv(netdev);
860 struct hinic_rxq_stats *nic_rx_stats;
861 struct hinic_txq_stats *nic_tx_stats;
862
863 nic_rx_stats = &nic_dev->rx_stats;
864 nic_tx_stats = &nic_dev->tx_stats;
865
866 down(&nic_dev->mgmt_lock);
867
868 if (nic_dev->flags & HINIC_INTF_UP)
869 update_nic_stats(nic_dev);
870
871 up(&nic_dev->mgmt_lock);
872
873 stats->rx_bytes = nic_rx_stats->bytes;
874 stats->rx_packets = nic_rx_stats->pkts;
875 stats->rx_errors = nic_rx_stats->errors;
876
877 stats->tx_bytes = nic_tx_stats->bytes;
878 stats->tx_packets = nic_tx_stats->pkts;
879 stats->tx_errors = nic_tx_stats->tx_dropped;
880}
881
882static int hinic_set_features(struct net_device *netdev,
883 netdev_features_t features)
884{
885 struct hinic_dev *nic_dev = netdev_priv(netdev);
886
887 return set_features(nic_dev, nic_dev->netdev->features,
888 features, false);
889}
890
891static netdev_features_t hinic_fix_features(struct net_device *netdev,
892 netdev_features_t features)
893{
894 struct hinic_dev *nic_dev = netdev_priv(netdev);
895
896
897 if (!(features & NETIF_F_RXCSUM)) {
898 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n");
899 features &= ~NETIF_F_LRO;
900 }
901
902 return features;
903}
904
905static const struct net_device_ops hinic_netdev_ops = {
906 .ndo_open = hinic_open,
907 .ndo_stop = hinic_close,
908 .ndo_change_mtu = hinic_change_mtu,
909 .ndo_set_mac_address = hinic_set_mac_addr,
910 .ndo_validate_addr = eth_validate_addr,
911 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
912 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
913 .ndo_set_rx_mode = hinic_set_rx_mode,
914 .ndo_start_xmit = hinic_xmit_frame,
915 .ndo_tx_timeout = hinic_tx_timeout,
916 .ndo_get_stats64 = hinic_get_stats64,
917 .ndo_fix_features = hinic_fix_features,
918 .ndo_set_features = hinic_set_features,
919 .ndo_set_vf_mac = hinic_ndo_set_vf_mac,
920 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan,
921 .ndo_get_vf_config = hinic_ndo_get_vf_config,
922 .ndo_set_vf_trust = hinic_ndo_set_vf_trust,
923 .ndo_set_vf_rate = hinic_ndo_set_vf_bw,
924 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk,
925 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state,
926};
927
928static const struct net_device_ops hinicvf_netdev_ops = {
929 .ndo_open = hinic_open,
930 .ndo_stop = hinic_close,
931 .ndo_change_mtu = hinic_change_mtu,
932 .ndo_set_mac_address = hinic_set_mac_addr,
933 .ndo_validate_addr = eth_validate_addr,
934 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
935 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
936 .ndo_set_rx_mode = hinic_set_rx_mode,
937 .ndo_start_xmit = hinic_xmit_frame,
938 .ndo_tx_timeout = hinic_tx_timeout,
939 .ndo_get_stats64 = hinic_get_stats64,
940 .ndo_fix_features = hinic_fix_features,
941 .ndo_set_features = hinic_set_features,
942};
943
944static void netdev_features_init(struct net_device *netdev)
945{
946 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
947 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
948 NETIF_F_RXCSUM | NETIF_F_LRO |
949 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
950 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM;
951
952 netdev->vlan_features = netdev->hw_features;
953
954 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
955
956 netdev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SCTP_CRC |
957 NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN |
958 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_UDP_TUNNEL;
959}
960
961static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev)
962{
963 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg;
964 struct hinic_pause_config pause_info = {0};
965 struct hinic_port_cap port_cap = {0};
966
967 if (hinic_port_get_cap(nic_dev, &port_cap))
968 return;
969
970 mutex_lock(&nic_cfg->cfg_mutex);
971 if (nic_cfg->pause_set || !port_cap.autoneg_state) {
972 nic_cfg->auto_neg = port_cap.autoneg_state;
973 pause_info.auto_neg = nic_cfg->auto_neg;
974 pause_info.rx_pause = nic_cfg->rx_pause;
975 pause_info.tx_pause = nic_cfg->tx_pause;
976 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info);
977 }
978 mutex_unlock(&nic_cfg->cfg_mutex);
979}
980
981
982
983
984
985
986
987
988
989
990
991static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
992 void *buf_out, u16 *out_size)
993{
994 struct hinic_port_link_status *link_status, *ret_link_status;
995 struct hinic_dev *nic_dev = handle;
996
997 link_status = buf_in;
998
999 if (link_status->link == HINIC_LINK_STATE_UP) {
1000 down(&nic_dev->mgmt_lock);
1001
1002 nic_dev->flags |= HINIC_LINK_UP;
1003 nic_dev->cable_unplugged = false;
1004 nic_dev->module_unrecognized = false;
1005
1006 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
1007 (HINIC_LINK_UP | HINIC_INTF_UP)) {
1008 netif_carrier_on(nic_dev->netdev);
1009 netif_tx_wake_all_queues(nic_dev->netdev);
1010 }
1011
1012 up(&nic_dev->mgmt_lock);
1013
1014 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
1015 hinic_refresh_nic_cfg(nic_dev);
1016
1017 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
1018 } else {
1019 down(&nic_dev->mgmt_lock);
1020
1021 nic_dev->flags &= ~HINIC_LINK_UP;
1022
1023 netif_carrier_off(nic_dev->netdev);
1024 netif_tx_disable(nic_dev->netdev);
1025
1026 up(&nic_dev->mgmt_lock);
1027
1028 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
1029 }
1030
1031 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
1032 hinic_notify_all_vfs_link_changed(nic_dev->hwdev,
1033 link_status->link);
1034
1035 ret_link_status = buf_out;
1036 ret_link_status->status = 0;
1037
1038 *out_size = sizeof(*ret_link_status);
1039}
1040
1041static void cable_plug_event(void *handle,
1042 void *buf_in, u16 in_size,
1043 void *buf_out, u16 *out_size)
1044{
1045 struct hinic_cable_plug_event *plug_event = buf_in;
1046 struct hinic_dev *nic_dev = handle;
1047
1048 nic_dev->cable_unplugged = plug_event->plugged ? false : true;
1049
1050 *out_size = sizeof(*plug_event);
1051 plug_event = buf_out;
1052 plug_event->status = 0;
1053}
1054
1055static void link_err_event(void *handle,
1056 void *buf_in, u16 in_size,
1057 void *buf_out, u16 *out_size)
1058{
1059 struct hinic_link_err_event *link_err = buf_in;
1060 struct hinic_dev *nic_dev = handle;
1061
1062 if (link_err->err_type >= LINK_ERR_NUM)
1063 netif_info(nic_dev, link, nic_dev->netdev,
1064 "Link failed, Unknown error type: 0x%x\n",
1065 link_err->err_type);
1066 else
1067 nic_dev->module_unrecognized = true;
1068
1069 *out_size = sizeof(*link_err);
1070 link_err = buf_out;
1071 link_err->status = 0;
1072}
1073
1074static int set_features(struct hinic_dev *nic_dev,
1075 netdev_features_t pre_features,
1076 netdev_features_t features, bool force_change)
1077{
1078 netdev_features_t changed = force_change ? ~0 : pre_features ^ features;
1079 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN;
1080 netdev_features_t failed_features = 0;
1081 int ret = 0;
1082 int err = 0;
1083
1084 if (changed & NETIF_F_TSO) {
1085 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ?
1086 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE);
1087 if (ret) {
1088 err = ret;
1089 failed_features |= NETIF_F_TSO;
1090 }
1091 }
1092
1093 if (changed & NETIF_F_RXCSUM) {
1094 ret = hinic_set_rx_csum_offload(nic_dev, csum_en);
1095 if (ret) {
1096 err = ret;
1097 failed_features |= NETIF_F_RXCSUM;
1098 }
1099 }
1100
1101 if (changed & NETIF_F_LRO) {
1102 ret = hinic_set_rx_lro_state(nic_dev,
1103 !!(features & NETIF_F_LRO),
1104 HINIC_LRO_RX_TIMER_DEFAULT,
1105 HINIC_LRO_MAX_WQE_NUM_DEFAULT);
1106 if (ret) {
1107 err = ret;
1108 failed_features |= NETIF_F_LRO;
1109 }
1110 }
1111
1112 if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
1113 ret = hinic_set_rx_vlan_offload(nic_dev,
1114 !!(features &
1115 NETIF_F_HW_VLAN_CTAG_RX));
1116 if (ret) {
1117 err = ret;
1118 failed_features |= NETIF_F_HW_VLAN_CTAG_RX;
1119 }
1120 }
1121
1122 if (err) {
1123 nic_dev->netdev->features = features ^ failed_features;
1124 return -EIO;
1125 }
1126
1127 return 0;
1128}
1129
1130static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev)
1131{
1132 u64 size;
1133 u16 i;
1134
1135 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps;
1136 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL);
1137 if (!nic_dev->rx_intr_coalesce)
1138 return -ENOMEM;
1139 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL);
1140 if (!nic_dev->tx_intr_coalesce) {
1141 kfree(nic_dev->rx_intr_coalesce);
1142 return -ENOMEM;
1143 }
1144
1145 for (i = 0; i < nic_dev->max_qps; i++) {
1146 nic_dev->rx_intr_coalesce[i].pending_limt =
1147 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT;
1148 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg =
1149 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG;
1150 nic_dev->rx_intr_coalesce[i].resend_timer_cfg =
1151 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG;
1152 nic_dev->tx_intr_coalesce[i].pending_limt =
1153 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT;
1154 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg =
1155 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG;
1156 nic_dev->tx_intr_coalesce[i].resend_timer_cfg =
1157 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG;
1158 }
1159
1160 return 0;
1161}
1162
1163static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev)
1164{
1165 kfree(nic_dev->tx_intr_coalesce);
1166 kfree(nic_dev->rx_intr_coalesce);
1167}
1168
1169
1170
1171
1172
1173
1174
1175static int nic_dev_init(struct pci_dev *pdev)
1176{
1177 struct hinic_rx_mode_work *rx_mode_work;
1178 struct hinic_txq_stats *tx_stats;
1179 struct hinic_rxq_stats *rx_stats;
1180 struct hinic_dev *nic_dev;
1181 struct net_device *netdev;
1182 struct hinic_hwdev *hwdev;
1183 struct devlink *devlink;
1184 int err, num_qps;
1185
1186 devlink = hinic_devlink_alloc(&pdev->dev);
1187 if (!devlink) {
1188 dev_err(&pdev->dev, "Hinic devlink alloc failed\n");
1189 return -ENOMEM;
1190 }
1191
1192 hwdev = hinic_init_hwdev(pdev, devlink);
1193 if (IS_ERR(hwdev)) {
1194 dev_err(&pdev->dev, "Failed to initialize HW device\n");
1195 hinic_devlink_free(devlink);
1196 return PTR_ERR(hwdev);
1197 }
1198
1199 num_qps = hinic_hwdev_num_qps(hwdev);
1200 if (num_qps <= 0) {
1201 dev_err(&pdev->dev, "Invalid number of QPS\n");
1202 err = -EINVAL;
1203 goto err_num_qps;
1204 }
1205
1206 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
1207 if (!netdev) {
1208 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
1209 err = -ENOMEM;
1210 goto err_alloc_etherdev;
1211 }
1212
1213 if (!HINIC_IS_VF(hwdev->hwif))
1214 netdev->netdev_ops = &hinic_netdev_ops;
1215 else
1216 netdev->netdev_ops = &hinicvf_netdev_ops;
1217
1218 netdev->max_mtu = ETH_MAX_MTU;
1219
1220 nic_dev = netdev_priv(netdev);
1221 nic_dev->netdev = netdev;
1222 nic_dev->hwdev = hwdev;
1223 nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
1224 nic_dev->flags = 0;
1225 nic_dev->txqs = NULL;
1226 nic_dev->rxqs = NULL;
1227 nic_dev->tx_weight = tx_weight;
1228 nic_dev->rx_weight = rx_weight;
1229 nic_dev->sq_depth = HINIC_SQ_DEPTH;
1230 nic_dev->rq_depth = HINIC_RQ_DEPTH;
1231 nic_dev->sriov_info.hwdev = hwdev;
1232 nic_dev->sriov_info.pdev = pdev;
1233 nic_dev->max_qps = num_qps;
1234 nic_dev->devlink = devlink;
1235
1236 hinic_set_ethtool_ops(netdev);
1237
1238 sema_init(&nic_dev->mgmt_lock, 1);
1239
1240 tx_stats = &nic_dev->tx_stats;
1241 rx_stats = &nic_dev->rx_stats;
1242
1243 u64_stats_init(&tx_stats->syncp);
1244 u64_stats_init(&rx_stats->syncp);
1245
1246 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
1247 VLAN_BITMAP_SIZE(nic_dev),
1248 GFP_KERNEL);
1249 if (!nic_dev->vlan_bitmap) {
1250 err = -ENOMEM;
1251 goto err_vlan_bitmap;
1252 }
1253
1254 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
1255 if (!nic_dev->workq) {
1256 err = -ENOMEM;
1257 goto err_workq;
1258 }
1259
1260 pci_set_drvdata(pdev, netdev);
1261
1262 err = hinic_port_get_mac(nic_dev, netdev->dev_addr);
1263 if (err) {
1264 dev_err(&pdev->dev, "Failed to get mac address\n");
1265 goto err_get_mac;
1266 }
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 dev_err(&pdev->dev, "Failed to enable PCI device\n");
1384 return err;
1385 }
1386
1387 err = pci_request_regions(pdev, HINIC_DRV_NAME);
1388 if (err) {
1389 dev_err(&pdev->dev, "Failed to request PCI regions\n");
1390 goto err_pci_regions;
1391 }
1392
1393 pci_set_master(pdev);
1394
1395 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
1396 if (err) {
1397 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n");
1398 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
1399 if (err) {
1400 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1401 goto err_dma_mask;
1402 }
1403 }
1404
1405 err = nic_dev_init(pdev);
1406 if (err) {
1407 dev_err(&pdev->dev, "Failed to initialize NIC device\n");
1408 goto err_nic_dev_init;
1409 }
1410
1411 dev_info(&pdev->dev, "HiNIC driver - probed\n");
1412 return 0;
1413
1414err_nic_dev_init:
1415err_dma_mask:
1416 pci_release_regions(pdev);
1417
1418err_pci_regions:
1419 pci_disable_device(pdev);
1420 return err;
1421}
1422
1423#define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000
1424
1425static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev)
1426{
1427 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info;
1428 u32 loop_cnt = 0;
1429
1430 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state);
1431 usleep_range(9900, 10000);
1432
1433 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) {
1434 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) &&
1435 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state))
1436 return;
1437
1438 usleep_range(9900, 10000);
1439 loop_cnt++;
1440 }
1441}
1442
1443static void hinic_remove(struct pci_dev *pdev)
1444{
1445 struct net_device *netdev = pci_get_drvdata(pdev);
1446 struct hinic_dev *nic_dev = netdev_priv(netdev);
1447 struct devlink *devlink = nic_dev->devlink;
1448 struct hinic_rx_mode_work *rx_mode_work;
1449
1450 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) {
1451 wait_sriov_cfg_complete(nic_dev);
1452 hinic_pci_sriov_disable(pdev);
1453 }
1454
1455 unregister_netdev(netdev);
1456
1457 hinic_func_table_debug_rem(nic_dev);
1458
1459 hinic_func_tbl_dbgfs_uninit(nic_dev);
1460
1461 hinic_dbg_uninit(nic_dev);
1462
1463 hinic_free_intr_coalesce(nic_dev);
1464
1465 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0);
1466
1467 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1468 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT);
1469 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1470 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT);
1471 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1472 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1473
1474 rx_mode_work = &nic_dev->rx_mode_work;
1475 cancel_work_sync(&rx_mode_work->work);
1476
1477 pci_set_drvdata(pdev, NULL);
1478
1479 destroy_workqueue(nic_dev->workq);
1480
1481 hinic_free_hwdev(nic_dev->hwdev);
1482
1483 free_netdev(netdev);
1484
1485 hinic_devlink_free(devlink);
1486
1487 pci_release_regions(pdev);
1488 pci_disable_device(pdev);
1489
1490 dev_info(&pdev->dev, "HiNIC driver - removed\n");
1491}
1492
1493static void hinic_shutdown(struct pci_dev *pdev)
1494{
1495 pci_disable_device(pdev);
1496}
1497
1498static const struct pci_device_id hinic_pci_table[] = {
1499 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
1500 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
1501 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0},
1502 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0},
1503 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0},
1504 { 0, 0}
1505};
1506MODULE_DEVICE_TABLE(pci, hinic_pci_table);
1507
1508static struct pci_driver hinic_driver = {
1509 .name = HINIC_DRV_NAME,
1510 .id_table = hinic_pci_table,
1511 .probe = hinic_probe,
1512 .remove = hinic_remove,
1513 .shutdown = hinic_shutdown,
1514 .sriov_configure = hinic_pci_sriov_configure,
1515};
1516
1517static int __init hinic_module_init(void)
1518{
1519 hinic_dbg_register_debugfs(HINIC_DRV_NAME);
1520 return pci_register_driver(&hinic_driver);
1521}
1522
1523static void __exit hinic_module_exit(void)
1524{
1525 pci_unregister_driver(&hinic_driver);
1526 hinic_dbg_unregister_debugfs();
1527}
1528
1529module_init(hinic_module_init);
1530module_exit(hinic_module_exit);
1531
