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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Huawei HiNIC PCI Express Linux driver
4 * Copyright(c) 2017 Huawei Technologies Co., Ltd
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 work_to_rx_mode_work(work) \
66 container_of(work, struct hinic_rx_mode_work, work)
67
68#define rx_mode_work_to_nic_dev(rx_mode_work) \
69 container_of(rx_mode_work, struct hinic_dev, rx_mode_work)
70
71#define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000
72
73#define HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT 2
74#define HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG 32
75#define HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG 7
76
77static int change_mac_addr(struct net_device *netdev, const u8 *addr);
78
79static int set_features(struct hinic_dev *nic_dev,
80 netdev_features_t pre_features,
81 netdev_features_t features, bool force_change);
82
83static void gather_rx_stats(struct hinic_rxq_stats *nic_rx_stats, struct hinic_rxq *rxq)
84{
85 struct hinic_rxq_stats rx_stats;
86
87 hinic_rxq_get_stats(rxq, &rx_stats);
88
89 nic_rx_stats->bytes += rx_stats.bytes;
90 nic_rx_stats->pkts += rx_stats.pkts;
91 nic_rx_stats->errors += rx_stats.errors;
92 nic_rx_stats->csum_errors += rx_stats.csum_errors;
93 nic_rx_stats->other_errors += rx_stats.other_errors;
94}
95
96static void gather_tx_stats(struct hinic_txq_stats *nic_tx_stats, struct hinic_txq *txq)
97{
98 struct hinic_txq_stats tx_stats;
99
100 hinic_txq_get_stats(txq, &tx_stats);
101
102 nic_tx_stats->bytes += tx_stats.bytes;
103 nic_tx_stats->pkts += tx_stats.pkts;
104 nic_tx_stats->tx_busy += tx_stats.tx_busy;
105 nic_tx_stats->tx_wake += tx_stats.tx_wake;
106 nic_tx_stats->tx_dropped += tx_stats.tx_dropped;
107 nic_tx_stats->big_frags_pkts += tx_stats.big_frags_pkts;
108}
109
110static void gather_nic_stats(struct hinic_dev *nic_dev,
111 struct hinic_rxq_stats *nic_rx_stats,
112 struct hinic_txq_stats *nic_tx_stats)
113{
114 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
115
116 for (i = 0; i < num_qps; i++)
117 gather_rx_stats(nic_rx_stats, &nic_dev->rxqs[i]);
118
119 for (i = 0; i < num_qps; i++)
120 gather_tx_stats(nic_tx_stats, &nic_dev->txqs[i]);
121}
122
123/**
124 * create_txqs - Create the Logical Tx Queues of specific NIC device
125 * @nic_dev: the specific NIC device
126 *
127 * Return 0 - Success, negative - Failure
128 **/
129static int create_txqs(struct hinic_dev *nic_dev)
130{
131 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
132 struct net_device *netdev = nic_dev->netdev;
133
134 if (nic_dev->txqs)
135 return -EINVAL;
136
137 nic_dev->txqs = devm_kcalloc(&netdev->dev, num_txqs,
138 sizeof(*nic_dev->txqs), GFP_KERNEL);
139 if (!nic_dev->txqs)
140 return -ENOMEM;
141
142 hinic_sq_dbgfs_init(nic_dev);
143
144 for (i = 0; i < num_txqs; i++) {
145 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
146
147 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
148 if (err) {
149 netif_err(nic_dev, drv, netdev,
150 "Failed to init Txq\n");
151 goto err_init_txq;
152 }
153
154 err = hinic_sq_debug_add(nic_dev, i);
155 if (err) {
156 netif_err(nic_dev, drv, netdev,
157 "Failed to add SQ%d debug\n", i);
158 goto err_add_sq_dbg;
159 }
160 }
161
162 return 0;
163
164err_add_sq_dbg:
165 hinic_clean_txq(&nic_dev->txqs[i]);
166err_init_txq:
167 for (j = 0; j < i; j++) {
168 hinic_sq_debug_rem(nic_dev->txqs[j].sq);
169 hinic_clean_txq(&nic_dev->txqs[j]);
170 }
171
172 hinic_sq_dbgfs_uninit(nic_dev);
173
174 devm_kfree(&netdev->dev, nic_dev->txqs);
175 nic_dev->txqs = NULL;
176 return err;
177}
178
179static void enable_txqs_napi(struct hinic_dev *nic_dev)
180{
181 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
182 int i;
183
184 for (i = 0; i < num_txqs; i++)
185 napi_enable(&nic_dev->txqs[i].napi);
186}
187
188static void disable_txqs_napi(struct hinic_dev *nic_dev)
189{
190 int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
191 int i;
192
193 for (i = 0; i < num_txqs; i++)
194 napi_disable(&nic_dev->txqs[i].napi);
195}
196
197/**
198 * free_txqs - Free the Logical Tx Queues of specific NIC device
199 * @nic_dev: the specific NIC device
200 **/
201static void free_txqs(struct hinic_dev *nic_dev)
202{
203 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
204 struct net_device *netdev = nic_dev->netdev;
205
206 if (!nic_dev->txqs)
207 return;
208
209 for (i = 0; i < num_txqs; i++) {
210 hinic_sq_debug_rem(nic_dev->txqs[i].sq);
211 hinic_clean_txq(&nic_dev->txqs[i]);
212 }
213
214 hinic_sq_dbgfs_uninit(nic_dev);
215
216 devm_kfree(&netdev->dev, nic_dev->txqs);
217 nic_dev->txqs = NULL;
218}
219
220/**
221 * create_rxqs - Create the Logical Rx Queues of specific NIC device
222 * @nic_dev: the specific NIC device
223 *
224 * Return 0 - Success, negative - Failure
225 **/
226static int create_rxqs(struct hinic_dev *nic_dev)
227{
228 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
229 struct net_device *netdev = nic_dev->netdev;
230
231 if (nic_dev->rxqs)
232 return -EINVAL;
233
234 nic_dev->rxqs = devm_kcalloc(&netdev->dev, num_rxqs,
235 sizeof(*nic_dev->rxqs), GFP_KERNEL);
236 if (!nic_dev->rxqs)
237 return -ENOMEM;
238
239 hinic_rq_dbgfs_init(nic_dev);
240
241 for (i = 0; i < num_rxqs; i++) {
242 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
243
244 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
245 if (err) {
246 netif_err(nic_dev, drv, netdev,
247 "Failed to init rxq\n");
248 goto err_init_rxq;
249 }
250
251 err = hinic_rq_debug_add(nic_dev, i);
252 if (err) {
253 netif_err(nic_dev, drv, netdev,
254 "Failed to add RQ%d debug\n", i);
255 goto err_add_rq_dbg;
256 }
257 }
258
259 return 0;
260
261err_add_rq_dbg:
262 hinic_clean_rxq(&nic_dev->rxqs[i]);
263err_init_rxq:
264 for (j = 0; j < i; j++) {
265 hinic_rq_debug_rem(nic_dev->rxqs[j].rq);
266 hinic_clean_rxq(&nic_dev->rxqs[j]);
267 }
268
269 hinic_rq_dbgfs_uninit(nic_dev);
270
271 devm_kfree(&netdev->dev, nic_dev->rxqs);
272 nic_dev->rxqs = NULL;
273 return err;
274}
275
276/**
277 * free_rxqs - Free the Logical Rx Queues of specific NIC device
278 * @nic_dev: the specific NIC device
279 **/
280static void free_rxqs(struct hinic_dev *nic_dev)
281{
282 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
283 struct net_device *netdev = nic_dev->netdev;
284
285 if (!nic_dev->rxqs)
286 return;
287
288 for (i = 0; i < num_rxqs; i++) {
289 hinic_rq_debug_rem(nic_dev->rxqs[i].rq);
290 hinic_clean_rxq(&nic_dev->rxqs[i]);
291 }
292
293 hinic_rq_dbgfs_uninit(nic_dev);
294
295 devm_kfree(&netdev->dev, nic_dev->rxqs);
296 nic_dev->rxqs = NULL;
297}
298
299static int hinic_configure_max_qnum(struct hinic_dev *nic_dev)
300{
301 return hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps);
302}
303
304static int hinic_rss_init(struct hinic_dev *nic_dev)
305{
306 u8 default_rss_key[HINIC_RSS_KEY_SIZE];
307 u8 tmpl_idx = nic_dev->rss_tmpl_idx;
308 u32 *indir_tbl;
309 int err, i;
310
311 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL);
312 if (!indir_tbl)
313 return -ENOMEM;
314
315 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key));
316 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++)
317 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss);
318
319 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key);
320 if (err)
321 goto out;
322
323 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl);
324 if (err)
325 goto out;
326
327 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type);
328 if (err)
329 goto out;
330
331 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx,
332 nic_dev->rss_hash_engine);
333 if (err)
334 goto out;
335
336 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx);
337 if (err)
338 goto out;
339
340out:
341 kfree(indir_tbl);
342 return err;
343}
344
345static void hinic_rss_deinit(struct hinic_dev *nic_dev)
346{
347 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx);
348}
349
350static void hinic_init_rss_parameters(struct hinic_dev *nic_dev)
351{
352 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR;
353 nic_dev->rss_type.tcp_ipv6_ext = 1;
354 nic_dev->rss_type.ipv6_ext = 1;
355 nic_dev->rss_type.tcp_ipv6 = 1;
356 nic_dev->rss_type.ipv6 = 1;
357 nic_dev->rss_type.tcp_ipv4 = 1;
358 nic_dev->rss_type.ipv4 = 1;
359 nic_dev->rss_type.udp_ipv6 = 1;
360 nic_dev->rss_type.udp_ipv4 = 1;
361}
362
363static void hinic_enable_rss(struct hinic_dev *nic_dev)
364{
365 struct net_device *netdev = nic_dev->netdev;
366 struct hinic_hwdev *hwdev = nic_dev->hwdev;
367 struct hinic_hwif *hwif = hwdev->hwif;
368 struct pci_dev *pdev = hwif->pdev;
369 int i, node, err = 0;
370 u16 num_cpus = 0;
371
372 if (nic_dev->max_qps <= 1) {
373 nic_dev->flags &= ~HINIC_RSS_ENABLE;
374 nic_dev->rss_limit = nic_dev->max_qps;
375 nic_dev->num_qps = nic_dev->max_qps;
376 nic_dev->num_rss = nic_dev->max_qps;
377
378 return;
379 }
380
381 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx);
382 if (err) {
383 netif_err(nic_dev, drv, netdev,
384 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n");
385 nic_dev->flags &= ~HINIC_RSS_ENABLE;
386 nic_dev->max_qps = 1;
387 nic_dev->rss_limit = nic_dev->max_qps;
388 nic_dev->num_qps = nic_dev->max_qps;
389 nic_dev->num_rss = nic_dev->max_qps;
390
391 return;
392 }
393
394 nic_dev->flags |= HINIC_RSS_ENABLE;
395
396 for (i = 0; i < num_online_cpus(); i++) {
397 node = cpu_to_node(i);
398 if (node == dev_to_node(&pdev->dev))
399 num_cpus++;
400 }
401
402 if (!num_cpus)
403 num_cpus = num_online_cpus();
404
405 nic_dev->num_qps = hinic_hwdev_num_qps(hwdev);
406 nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus);
407
408 nic_dev->rss_limit = nic_dev->num_qps;
409 nic_dev->num_rss = nic_dev->num_qps;
410
411 hinic_init_rss_parameters(nic_dev);
412 err = hinic_rss_init(nic_dev);
413 if (err)
414 netif_err(nic_dev, drv, netdev, "Failed to init rss\n");
415}
416
417int hinic_open(struct net_device *netdev)
418{
419 struct hinic_dev *nic_dev = netdev_priv(netdev);
420 enum hinic_port_link_state link_state;
421 int err, ret;
422
423 if (!(nic_dev->flags & HINIC_INTF_UP)) {
424 err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth,
425 nic_dev->rq_depth);
426 if (err) {
427 netif_err(nic_dev, drv, netdev,
428 "Failed - HW interface up\n");
429 return err;
430 }
431 }
432
433 err = create_txqs(nic_dev);
434 if (err) {
435 netif_err(nic_dev, drv, netdev,
436 "Failed to create Tx queues\n");
437 goto err_create_txqs;
438 }
439
440 enable_txqs_napi(nic_dev);
441
442 err = create_rxqs(nic_dev);
443 if (err) {
444 netif_err(nic_dev, drv, netdev,
445 "Failed to create Rx queues\n");
446 goto err_create_rxqs;
447 }
448
449 hinic_enable_rss(nic_dev);
450
451 err = hinic_configure_max_qnum(nic_dev);
452 if (err) {
453 netif_err(nic_dev, drv, nic_dev->netdev,
454 "Failed to configure the maximum number of queues\n");
455 goto err_port_state;
456 }
457
458 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps);
459 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps);
460
461 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
462 if (err) {
463 netif_err(nic_dev, drv, netdev,
464 "Failed to set port state\n");
465 goto err_port_state;
466 }
467
468 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
469 if (err) {
470 netif_err(nic_dev, drv, netdev,
471 "Failed to set func port state\n");
472 goto err_func_port_state;
473 }
474
475 down(&nic_dev->mgmt_lock);
476
477 err = hinic_port_link_state(nic_dev, &link_state);
478 if (err) {
479 netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
480 goto err_port_link;
481 }
482
483 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
484 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state);
485
486 if (link_state == HINIC_LINK_STATE_UP) {
487 nic_dev->flags |= HINIC_LINK_UP;
488 nic_dev->cable_unplugged = false;
489 nic_dev->module_unrecognized = false;
490 }
491
492 nic_dev->flags |= HINIC_INTF_UP;
493
494 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
495 (HINIC_LINK_UP | HINIC_INTF_UP)) {
496 netif_info(nic_dev, drv, netdev, "link + intf UP\n");
497 netif_carrier_on(netdev);
498 netif_tx_wake_all_queues(netdev);
499 }
500
501 up(&nic_dev->mgmt_lock);
502
503 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
504 return 0;
505
506err_port_link:
507 up(&nic_dev->mgmt_lock);
508 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
509 if (ret)
510 netif_warn(nic_dev, drv, netdev,
511 "Failed to revert func port state\n");
512
513err_func_port_state:
514 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
515 if (ret)
516 netif_warn(nic_dev, drv, netdev,
517 "Failed to revert port state\n");
518err_port_state:
519 free_rxqs(nic_dev);
520 if (nic_dev->flags & HINIC_RSS_ENABLE) {
521 hinic_rss_deinit(nic_dev);
522 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
523 }
524
525err_create_rxqs:
526 disable_txqs_napi(nic_dev);
527 free_txqs(nic_dev);
528
529err_create_txqs:
530 if (!(nic_dev->flags & HINIC_INTF_UP))
531 hinic_hwdev_ifdown(nic_dev->hwdev);
532 return err;
533}
534
535int hinic_close(struct net_device *netdev)
536{
537 struct hinic_dev *nic_dev = netdev_priv(netdev);
538 unsigned int flags;
539
540 /* Disable txq napi firstly to aviod rewaking txq in free_tx_poll */
541 disable_txqs_napi(nic_dev);
542
543 down(&nic_dev->mgmt_lock);
544
545 flags = nic_dev->flags;
546 nic_dev->flags &= ~HINIC_INTF_UP;
547
548 netif_carrier_off(netdev);
549 netif_tx_disable(netdev);
550
551 up(&nic_dev->mgmt_lock);
552
553 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
554 hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0);
555
556 hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
557
558 hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
559
560 if (nic_dev->flags & HINIC_RSS_ENABLE) {
561 hinic_rss_deinit(nic_dev);
562 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
563 }
564
565 free_rxqs(nic_dev);
566 free_txqs(nic_dev);
567
568 if (flags & HINIC_INTF_UP)
569 hinic_hwdev_ifdown(nic_dev->hwdev);
570
571 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
572 return 0;
573}
574
575static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
576{
577 struct hinic_dev *nic_dev = netdev_priv(netdev);
578 int err;
579
580 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
581
582 err = hinic_port_set_mtu(nic_dev, new_mtu);
583 if (err)
584 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
585 else
586 WRITE_ONCE(netdev->mtu, new_mtu);
587
588 return err;
589}
590
591/**
592 * change_mac_addr - change the main mac address of network device
593 * @netdev: network device
594 * @addr: mac address to set
595 *
596 * Return 0 - Success, negative - Failure
597 **/
598static int change_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 if (!is_valid_ether_addr(addr))
605 return -EADDRNOTAVAIL;
606
607 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
608 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
609
610 down(&nic_dev->mgmt_lock);
611
612 do {
613 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
614 if (err) {
615 netif_err(nic_dev, drv, netdev,
616 "Failed to delete mac\n");
617 break;
618 }
619
620 err = hinic_port_add_mac(nic_dev, addr, vid);
621 if (err) {
622 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
623 break;
624 }
625
626 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
627 } while (vid != VLAN_N_VID);
628
629 up(&nic_dev->mgmt_lock);
630 return err;
631}
632
633static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
634{
635 unsigned char new_mac[ETH_ALEN];
636 struct sockaddr *saddr = addr;
637 int err;
638
639 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
640
641 err = change_mac_addr(netdev, new_mac);
642 if (!err)
643 eth_hw_addr_set(netdev, new_mac);
644
645 return err;
646}
647
648/**
649 * add_mac_addr - add mac address to network device
650 * @netdev: network device
651 * @addr: mac address to add
652 *
653 * Return 0 - Success, negative - Failure
654 **/
655static int add_mac_addr(struct net_device *netdev, const u8 *addr)
656{
657 struct hinic_dev *nic_dev = netdev_priv(netdev);
658 u16 vid = 0;
659 int err;
660
661 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
662 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
663
664 down(&nic_dev->mgmt_lock);
665
666 do {
667 err = hinic_port_add_mac(nic_dev, addr, vid);
668 if (err) {
669 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
670 break;
671 }
672
673 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
674 } while (vid != VLAN_N_VID);
675
676 up(&nic_dev->mgmt_lock);
677 return err;
678}
679
680/**
681 * remove_mac_addr - remove mac address from network device
682 * @netdev: network device
683 * @addr: mac address to remove
684 *
685 * Return 0 - Success, negative - Failure
686 **/
687static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
688{
689 struct hinic_dev *nic_dev = netdev_priv(netdev);
690 u16 vid = 0;
691 int err;
692
693 if (!is_valid_ether_addr(addr))
694 return -EADDRNOTAVAIL;
695
696 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
697 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
698
699 down(&nic_dev->mgmt_lock);
700
701 do {
702 err = hinic_port_del_mac(nic_dev, addr, vid);
703 if (err) {
704 netif_err(nic_dev, drv, netdev,
705 "Failed to delete mac\n");
706 break;
707 }
708
709 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
710 } while (vid != VLAN_N_VID);
711
712 up(&nic_dev->mgmt_lock);
713 return err;
714}
715
716static int hinic_vlan_rx_add_vid(struct net_device *netdev,
717 __always_unused __be16 proto, u16 vid)
718{
719 struct hinic_dev *nic_dev = netdev_priv(netdev);
720 int ret, err;
721
722 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
723
724 down(&nic_dev->mgmt_lock);
725
726 err = hinic_port_add_vlan(nic_dev, vid);
727 if (err) {
728 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
729 goto err_vlan_add;
730 }
731
732 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
733 if (err && err != HINIC_PF_SET_VF_ALREADY) {
734 netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
735 goto err_add_mac;
736 }
737
738 bitmap_set(nic_dev->vlan_bitmap, vid, 1);
739
740 up(&nic_dev->mgmt_lock);
741 return 0;
742
743err_add_mac:
744 ret = hinic_port_del_vlan(nic_dev, vid);
745 if (ret)
746 netif_err(nic_dev, drv, netdev,
747 "Failed to revert by removing vlan\n");
748
749err_vlan_add:
750 up(&nic_dev->mgmt_lock);
751 return err;
752}
753
754static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
755 __always_unused __be16 proto, u16 vid)
756{
757 struct hinic_dev *nic_dev = netdev_priv(netdev);
758 int err;
759
760 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
761
762 down(&nic_dev->mgmt_lock);
763
764 err = hinic_port_del_vlan(nic_dev, vid);
765 if (err) {
766 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
767 goto err_del_vlan;
768 }
769
770 bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
771
772 up(&nic_dev->mgmt_lock);
773 return 0;
774
775err_del_vlan:
776 up(&nic_dev->mgmt_lock);
777 return err;
778}
779
780static void set_rx_mode(struct work_struct *work)
781{
782 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
783 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
784
785 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
786
787 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
788 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
789}
790
791static void hinic_set_rx_mode(struct net_device *netdev)
792{
793 struct hinic_dev *nic_dev = netdev_priv(netdev);
794 struct hinic_rx_mode_work *rx_mode_work;
795 u32 rx_mode;
796
797 rx_mode_work = &nic_dev->rx_mode_work;
798
799 rx_mode = HINIC_RX_MODE_UC |
800 HINIC_RX_MODE_MC |
801 HINIC_RX_MODE_BC;
802
803 if (netdev->flags & IFF_PROMISC) {
804 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
805 rx_mode |= HINIC_RX_MODE_PROMISC;
806 } else if (netdev->flags & IFF_ALLMULTI) {
807 rx_mode |= HINIC_RX_MODE_MC_ALL;
808 }
809
810 rx_mode_work->rx_mode = rx_mode;
811
812 queue_work(nic_dev->workq, &rx_mode_work->work);
813}
814
815static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue)
816{
817 struct hinic_dev *nic_dev = netdev_priv(netdev);
818 u16 sw_pi, hw_ci, sw_ci;
819 struct hinic_sq *sq;
820 u16 num_sqs, q_id;
821
822 num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev);
823
824 netif_err(nic_dev, drv, netdev, "Tx timeout\n");
825
826 for (q_id = 0; q_id < num_sqs; q_id++) {
827 if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id)))
828 continue;
829
830 sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id);
831 sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask;
832 hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask;
833 sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask;
834 netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n",
835 q_id, sw_pi, hw_ci, sw_ci,
836 nic_dev->txqs[q_id].napi.state);
837 }
838}
839
840static void hinic_get_stats64(struct net_device *netdev,
841 struct rtnl_link_stats64 *stats)
842{
843 struct hinic_dev *nic_dev = netdev_priv(netdev);
844 struct hinic_rxq_stats nic_rx_stats = {};
845 struct hinic_txq_stats nic_tx_stats = {};
846
847 if (nic_dev->flags & HINIC_INTF_UP)
848 gather_nic_stats(nic_dev, &nic_rx_stats, &nic_tx_stats);
849
850 stats->rx_bytes = nic_rx_stats.bytes;
851 stats->rx_packets = nic_rx_stats.pkts;
852 stats->rx_errors = nic_rx_stats.errors;
853
854 stats->tx_bytes = nic_tx_stats.bytes;
855 stats->tx_packets = nic_tx_stats.pkts;
856 stats->tx_errors = nic_tx_stats.tx_dropped;
857}
858
859static int hinic_set_features(struct net_device *netdev,
860 netdev_features_t features)
861{
862 struct hinic_dev *nic_dev = netdev_priv(netdev);
863
864 return set_features(nic_dev, nic_dev->netdev->features,
865 features, false);
866}
867
868static netdev_features_t hinic_fix_features(struct net_device *netdev,
869 netdev_features_t features)
870{
871 struct hinic_dev *nic_dev = netdev_priv(netdev);
872
873 /* If Rx checksum is disabled, then LRO should also be disabled */
874 if (!(features & NETIF_F_RXCSUM)) {
875 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n");
876 features &= ~NETIF_F_LRO;
877 }
878
879 return features;
880}
881
882static const struct net_device_ops hinic_netdev_ops = {
883 .ndo_open = hinic_open,
884 .ndo_stop = hinic_close,
885 .ndo_change_mtu = hinic_change_mtu,
886 .ndo_set_mac_address = hinic_set_mac_addr,
887 .ndo_validate_addr = eth_validate_addr,
888 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
889 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
890 .ndo_set_rx_mode = hinic_set_rx_mode,
891 .ndo_start_xmit = hinic_xmit_frame,
892 .ndo_tx_timeout = hinic_tx_timeout,
893 .ndo_get_stats64 = hinic_get_stats64,
894 .ndo_fix_features = hinic_fix_features,
895 .ndo_set_features = hinic_set_features,
896 .ndo_set_vf_mac = hinic_ndo_set_vf_mac,
897 .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan,
898 .ndo_get_vf_config = hinic_ndo_get_vf_config,
899 .ndo_set_vf_trust = hinic_ndo_set_vf_trust,
900 .ndo_set_vf_rate = hinic_ndo_set_vf_bw,
901 .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk,
902 .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state,
903};
904
905static const struct net_device_ops hinicvf_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};
920
921static void netdev_features_init(struct net_device *netdev)
922{
923 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
924 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
925 NETIF_F_RXCSUM | NETIF_F_LRO |
926 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
927 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM;
928
929 netdev->vlan_features = netdev->hw_features;
930
931 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
932
933 netdev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SCTP_CRC |
934 NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN |
935 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_UDP_TUNNEL;
936}
937
938static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev)
939{
940 struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg;
941 struct hinic_pause_config pause_info = {0};
942 struct hinic_port_cap port_cap = {0};
943
944 if (hinic_port_get_cap(nic_dev, &port_cap))
945 return;
946
947 mutex_lock(&nic_cfg->cfg_mutex);
948 if (nic_cfg->pause_set || !port_cap.autoneg_state) {
949 nic_cfg->auto_neg = port_cap.autoneg_state;
950 pause_info.auto_neg = nic_cfg->auto_neg;
951 pause_info.rx_pause = nic_cfg->rx_pause;
952 pause_info.tx_pause = nic_cfg->tx_pause;
953 hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info);
954 }
955 mutex_unlock(&nic_cfg->cfg_mutex);
956}
957
958/**
959 * link_status_event_handler - link event handler
960 * @handle: nic device for the handler
961 * @buf_in: input buffer
962 * @in_size: input size
963 * @buf_out: output buffer
964 * @out_size: returned output size
965 **/
966static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
967 void *buf_out, u16 *out_size)
968{
969 struct hinic_port_link_status *link_status, *ret_link_status;
970 struct hinic_dev *nic_dev = handle;
971
972 link_status = buf_in;
973
974 if (link_status->link == HINIC_LINK_STATE_UP) {
975 down(&nic_dev->mgmt_lock);
976
977 nic_dev->flags |= HINIC_LINK_UP;
978 nic_dev->cable_unplugged = false;
979 nic_dev->module_unrecognized = false;
980
981 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
982 (HINIC_LINK_UP | HINIC_INTF_UP)) {
983 netif_carrier_on(nic_dev->netdev);
984 netif_tx_wake_all_queues(nic_dev->netdev);
985 }
986
987 up(&nic_dev->mgmt_lock);
988
989 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
990 hinic_refresh_nic_cfg(nic_dev);
991
992 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
993 } else {
994 down(&nic_dev->mgmt_lock);
995
996 nic_dev->flags &= ~HINIC_LINK_UP;
997
998 netif_carrier_off(nic_dev->netdev);
999 netif_tx_disable(nic_dev->netdev);
1000
1001 up(&nic_dev->mgmt_lock);
1002
1003 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
1004 }
1005
1006 if (!HINIC_IS_VF(nic_dev->hwdev->hwif))
1007 hinic_notify_all_vfs_link_changed(nic_dev->hwdev,
1008 link_status->link);
1009
1010 ret_link_status = buf_out;
1011 ret_link_status->status = 0;
1012
1013 *out_size = sizeof(*ret_link_status);
1014}
1015
1016static void cable_plug_event(void *handle,
1017 void *buf_in, u16 in_size,
1018 void *buf_out, u16 *out_size)
1019{
1020 struct hinic_cable_plug_event *plug_event = buf_in;
1021 struct hinic_dev *nic_dev = handle;
1022
1023 nic_dev->cable_unplugged = plug_event->plugged ? false : true;
1024
1025 *out_size = sizeof(*plug_event);
1026 plug_event = buf_out;
1027 plug_event->status = 0;
1028}
1029
1030static void link_err_event(void *handle,
1031 void *buf_in, u16 in_size,
1032 void *buf_out, u16 *out_size)
1033{
1034 struct hinic_link_err_event *link_err = buf_in;
1035 struct hinic_dev *nic_dev = handle;
1036
1037 if (link_err->err_type >= LINK_ERR_NUM)
1038 netif_info(nic_dev, link, nic_dev->netdev,
1039 "Link failed, Unknown error type: 0x%x\n",
1040 link_err->err_type);
1041 else
1042 nic_dev->module_unrecognized = true;
1043
1044 *out_size = sizeof(*link_err);
1045 link_err = buf_out;
1046 link_err->status = 0;
1047}
1048
1049static int set_features(struct hinic_dev *nic_dev,
1050 netdev_features_t pre_features,
1051 netdev_features_t features, bool force_change)
1052{
1053 netdev_features_t changed = force_change ? ~0 : pre_features ^ features;
1054 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN;
1055 netdev_features_t failed_features = 0;
1056 int ret = 0;
1057 int err = 0;
1058
1059 if (changed & NETIF_F_TSO) {
1060 ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ?
1061 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE);
1062 if (ret) {
1063 err = ret;
1064 failed_features |= NETIF_F_TSO;
1065 }
1066 }
1067
1068 if (changed & NETIF_F_RXCSUM) {
1069 ret = hinic_set_rx_csum_offload(nic_dev, csum_en);
1070 if (ret) {
1071 err = ret;
1072 failed_features |= NETIF_F_RXCSUM;
1073 }
1074 }
1075
1076 if (changed & NETIF_F_LRO) {
1077 ret = hinic_set_rx_lro_state(nic_dev,
1078 !!(features & NETIF_F_LRO),
1079 HINIC_LRO_RX_TIMER_DEFAULT,
1080 HINIC_LRO_MAX_WQE_NUM_DEFAULT);
1081 if (ret) {
1082 err = ret;
1083 failed_features |= NETIF_F_LRO;
1084 }
1085 }
1086
1087 if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
1088 ret = hinic_set_rx_vlan_offload(nic_dev,
1089 !!(features &
1090 NETIF_F_HW_VLAN_CTAG_RX));
1091 if (ret) {
1092 err = ret;
1093 failed_features |= NETIF_F_HW_VLAN_CTAG_RX;
1094 }
1095 }
1096
1097 if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) {
1098 ret = hinic_set_vlan_fliter(nic_dev,
1099 !!(features &
1100 NETIF_F_HW_VLAN_CTAG_FILTER));
1101 if (ret) {
1102 err = ret;
1103 failed_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1104 }
1105 }
1106
1107 if (err) {
1108 nic_dev->netdev->features = features ^ failed_features;
1109 return -EIO;
1110 }
1111
1112 return 0;
1113}
1114
1115static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev)
1116{
1117 u64 size;
1118 u16 i;
1119
1120 size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps;
1121 nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL);
1122 if (!nic_dev->rx_intr_coalesce)
1123 return -ENOMEM;
1124 nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL);
1125 if (!nic_dev->tx_intr_coalesce) {
1126 kfree(nic_dev->rx_intr_coalesce);
1127 return -ENOMEM;
1128 }
1129
1130 for (i = 0; i < nic_dev->max_qps; i++) {
1131 nic_dev->rx_intr_coalesce[i].pending_limt =
1132 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT;
1133 nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg =
1134 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG;
1135 nic_dev->rx_intr_coalesce[i].resend_timer_cfg =
1136 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG;
1137 nic_dev->tx_intr_coalesce[i].pending_limt =
1138 HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT;
1139 nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg =
1140 HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG;
1141 nic_dev->tx_intr_coalesce[i].resend_timer_cfg =
1142 HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG;
1143 }
1144
1145 return 0;
1146}
1147
1148static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev)
1149{
1150 kfree(nic_dev->tx_intr_coalesce);
1151 kfree(nic_dev->rx_intr_coalesce);
1152}
1153
1154/**
1155 * nic_dev_init - Initialize the NIC device
1156 * @pdev: the NIC pci device
1157 *
1158 * Return 0 - Success, negative - Failure
1159 **/
1160static int nic_dev_init(struct pci_dev *pdev)
1161{
1162 struct hinic_rx_mode_work *rx_mode_work;
1163 struct hinic_dev *nic_dev;
1164 struct net_device *netdev;
1165 struct hinic_hwdev *hwdev;
1166 struct devlink *devlink;
1167 u8 addr[ETH_ALEN];
1168 int err, num_qps;
1169
1170 devlink = hinic_devlink_alloc(&pdev->dev);
1171 if (!devlink) {
1172 dev_err(&pdev->dev, "Hinic devlink alloc failed\n");
1173 return -ENOMEM;
1174 }
1175
1176 hwdev = hinic_init_hwdev(pdev, devlink);
1177 if (IS_ERR(hwdev)) {
1178 dev_err(&pdev->dev, "Failed to initialize HW device\n");
1179 hinic_devlink_free(devlink);
1180 return PTR_ERR(hwdev);
1181 }
1182
1183 num_qps = hinic_hwdev_num_qps(hwdev);
1184 if (num_qps <= 0) {
1185 dev_err(&pdev->dev, "Invalid number of QPS\n");
1186 err = -EINVAL;
1187 goto err_num_qps;
1188 }
1189
1190 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
1191 if (!netdev) {
1192 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
1193 err = -ENOMEM;
1194 goto err_alloc_etherdev;
1195 }
1196
1197 if (!HINIC_IS_VF(hwdev->hwif))
1198 netdev->netdev_ops = &hinic_netdev_ops;
1199 else
1200 netdev->netdev_ops = &hinicvf_netdev_ops;
1201
1202 netdev->max_mtu = HINIC_MAX_MTU_SIZE;
1203 netdev->min_mtu = HINIC_MIN_MTU_SIZE;
1204
1205 nic_dev = netdev_priv(netdev);
1206 nic_dev->netdev = netdev;
1207 nic_dev->hwdev = hwdev;
1208 nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
1209 nic_dev->flags = 0;
1210 nic_dev->txqs = NULL;
1211 nic_dev->rxqs = NULL;
1212 nic_dev->tx_weight = tx_weight;
1213 nic_dev->rx_weight = rx_weight;
1214 nic_dev->sq_depth = HINIC_SQ_DEPTH;
1215 nic_dev->rq_depth = HINIC_RQ_DEPTH;
1216 nic_dev->sriov_info.hwdev = hwdev;
1217 nic_dev->sriov_info.pdev = pdev;
1218 nic_dev->max_qps = num_qps;
1219 nic_dev->devlink = devlink;
1220
1221 hinic_set_ethtool_ops(netdev);
1222
1223 sema_init(&nic_dev->mgmt_lock, 1);
1224
1225 nic_dev->vlan_bitmap = devm_bitmap_zalloc(&pdev->dev, VLAN_N_VID,
1226 GFP_KERNEL);
1227 if (!nic_dev->vlan_bitmap) {
1228 err = -ENOMEM;
1229 goto err_vlan_bitmap;
1230 }
1231
1232 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
1233 if (!nic_dev->workq) {
1234 err = -ENOMEM;
1235 goto err_workq;
1236 }
1237
1238 pci_set_drvdata(pdev, netdev);
1239
1240 err = hinic_port_get_mac(nic_dev, addr);
1241 if (err) {
1242 dev_err(&pdev->dev, "Failed to get mac address\n");
1243 goto err_get_mac;
1244 }
1245 eth_hw_addr_set(netdev, addr);
1246
1247 if (!is_valid_ether_addr(netdev->dev_addr)) {
1248 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) {
1249 dev_err(&pdev->dev, "Invalid MAC address\n");
1250 err = -EIO;
1251 goto err_add_mac;
1252 }
1253
1254 dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n",
1255 netdev->dev_addr);
1256 eth_hw_addr_random(netdev);
1257 }
1258
1259 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0);
1260 if (err && err != HINIC_PF_SET_VF_ALREADY) {
1261 dev_err(&pdev->dev, "Failed to add mac\n");
1262 goto err_add_mac;
1263 }
1264
1265 err = hinic_port_set_mtu(nic_dev, netdev->mtu);
1266 if (err) {
1267 dev_err(&pdev->dev, "Failed to set mtu\n");
1268 goto err_set_mtu;
1269 }
1270
1271 rx_mode_work = &nic_dev->rx_mode_work;
1272 INIT_WORK(&rx_mode_work->work, set_rx_mode);
1273
1274 netdev_features_init(netdev);
1275
1276 netif_carrier_off(netdev);
1277
1278 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
1279 nic_dev, link_status_event_handler);
1280 hinic_hwdev_cb_register(nic_dev->hwdev,
1281 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT,
1282 nic_dev, cable_plug_event);
1283 hinic_hwdev_cb_register(nic_dev->hwdev,
1284 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT,
1285 nic_dev, link_err_event);
1286
1287 err = set_features(nic_dev, 0, nic_dev->netdev->features, true);
1288 if (err)
1289 goto err_set_features;
1290
1291 /* enable pause and disable pfc by default */
1292 err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0);
1293 if (err)
1294 goto err_set_pfc;
1295
1296 SET_NETDEV_DEV(netdev, &pdev->dev);
1297
1298 err = hinic_init_intr_coalesce(nic_dev);
1299 if (err) {
1300 dev_err(&pdev->dev, "Failed to init_intr_coalesce\n");
1301 goto err_init_intr;
1302 }
1303
1304 hinic_dbg_init(nic_dev);
1305
1306 hinic_func_tbl_dbgfs_init(nic_dev);
1307
1308 err = hinic_func_table_debug_add(nic_dev);
1309 if (err) {
1310 dev_err(&pdev->dev, "Failed to add func_table debug\n");
1311 goto err_add_func_table_dbg;
1312 }
1313
1314 err = register_netdev(netdev);
1315 if (err) {
1316 dev_err(&pdev->dev, "Failed to register netdev\n");
1317 goto err_reg_netdev;
1318 }
1319
1320 return 0;
1321
1322err_reg_netdev:
1323 hinic_func_table_debug_rem(nic_dev);
1324err_add_func_table_dbg:
1325 hinic_func_tbl_dbgfs_uninit(nic_dev);
1326 hinic_dbg_uninit(nic_dev);
1327 hinic_free_intr_coalesce(nic_dev);
1328err_init_intr:
1329err_set_pfc:
1330err_set_features:
1331 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1332 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT);
1333 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1334 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT);
1335 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1336 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1337 cancel_work_sync(&rx_mode_work->work);
1338
1339err_set_mtu:
1340 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0);
1341err_add_mac:
1342err_get_mac:
1343 pci_set_drvdata(pdev, NULL);
1344 destroy_workqueue(nic_dev->workq);
1345err_workq:
1346err_vlan_bitmap:
1347 free_netdev(netdev);
1348
1349err_alloc_etherdev:
1350err_num_qps:
1351 hinic_free_hwdev(hwdev);
1352 hinic_devlink_free(devlink);
1353 return err;
1354}
1355
1356static int hinic_probe(struct pci_dev *pdev,
1357 const struct pci_device_id *id)
1358{
1359 int err = pci_enable_device(pdev);
1360
1361 if (err)
1362 return dev_err_probe(&pdev->dev, err, "Failed to enable PCI device\n");
1363
1364 err = pci_request_regions(pdev, HINIC_DRV_NAME);
1365 if (err) {
1366 dev_err(&pdev->dev, "Failed to request PCI regions\n");
1367 goto err_pci_regions;
1368 }
1369
1370 pci_set_master(pdev);
1371
1372 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
1373 if (err) {
1374 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1375 goto err_dma_mask;
1376 }
1377
1378 err = nic_dev_init(pdev);
1379 if (err) {
1380 dev_err(&pdev->dev, "Failed to initialize NIC device\n");
1381 goto err_nic_dev_init;
1382 }
1383
1384 dev_info(&pdev->dev, "HiNIC driver - probed\n");
1385 return 0;
1386
1387err_nic_dev_init:
1388err_dma_mask:
1389 pci_release_regions(pdev);
1390
1391err_pci_regions:
1392 pci_disable_device(pdev);
1393 return err;
1394}
1395
1396static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev)
1397{
1398 struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info;
1399 u32 loop_cnt = 0;
1400
1401 set_bit(HINIC_FUNC_REMOVE, &sriov_info->state);
1402 usleep_range(9900, 10000);
1403
1404 while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) {
1405 if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) &&
1406 !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state))
1407 return;
1408
1409 usleep_range(9900, 10000);
1410 loop_cnt++;
1411 }
1412}
1413
1414static void hinic_remove(struct pci_dev *pdev)
1415{
1416 struct net_device *netdev = pci_get_drvdata(pdev);
1417 struct hinic_dev *nic_dev = netdev_priv(netdev);
1418 struct devlink *devlink = nic_dev->devlink;
1419 struct hinic_rx_mode_work *rx_mode_work;
1420
1421 if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) {
1422 wait_sriov_cfg_complete(nic_dev);
1423 hinic_pci_sriov_disable(pdev);
1424 }
1425
1426 unregister_netdev(netdev);
1427
1428 hinic_func_table_debug_rem(nic_dev);
1429
1430 hinic_func_tbl_dbgfs_uninit(nic_dev);
1431
1432 hinic_dbg_uninit(nic_dev);
1433
1434 hinic_free_intr_coalesce(nic_dev);
1435
1436 hinic_port_del_mac(nic_dev, netdev->dev_addr, 0);
1437
1438 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1439 HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT);
1440 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1441 HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT);
1442 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1443 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1444
1445 rx_mode_work = &nic_dev->rx_mode_work;
1446 cancel_work_sync(&rx_mode_work->work);
1447
1448 pci_set_drvdata(pdev, NULL);
1449
1450 destroy_workqueue(nic_dev->workq);
1451
1452 hinic_free_hwdev(nic_dev->hwdev);
1453
1454 free_netdev(netdev);
1455
1456 hinic_devlink_free(devlink);
1457
1458 pci_release_regions(pdev);
1459 pci_disable_device(pdev);
1460
1461 dev_info(&pdev->dev, "HiNIC driver - removed\n");
1462}
1463
1464static void hinic_shutdown(struct pci_dev *pdev)
1465{
1466 pci_disable_device(pdev);
1467}
1468
1469static const struct pci_device_id hinic_pci_table[] = {
1470 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
1471 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
1472 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0},
1473 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0},
1474 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0},
1475 { 0, 0}
1476};
1477MODULE_DEVICE_TABLE(pci, hinic_pci_table);
1478
1479static struct pci_driver hinic_driver = {
1480 .name = HINIC_DRV_NAME,
1481 .id_table = hinic_pci_table,
1482 .probe = hinic_probe,
1483 .remove = hinic_remove,
1484 .shutdown = hinic_shutdown,
1485 .sriov_configure = hinic_pci_sriov_configure,
1486};
1487
1488static int __init hinic_module_init(void)
1489{
1490 int ret;
1491
1492 hinic_dbg_register_debugfs(HINIC_DRV_NAME);
1493
1494 ret = pci_register_driver(&hinic_driver);
1495 if (ret)
1496 hinic_dbg_unregister_debugfs();
1497
1498 return ret;
1499}
1500
1501static void __exit hinic_module_exit(void)
1502{
1503 pci_unregister_driver(&hinic_driver);
1504 hinic_dbg_unregister_debugfs();
1505}
1506
1507module_init(hinic_module_init);
1508module_exit(hinic_module_exit);
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Huawei HiNIC PCI Express Linux driver
4 * Copyright(c) 2017 Huawei Technologies Co., Ltd
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 <linux/bitops.h>
22#include <linux/bitmap.h>
23#include <linux/delay.h>
24#include <linux/err.h>
25
26#include "hinic_hw_qp.h"
27#include "hinic_hw_dev.h"
28#include "hinic_port.h"
29#include "hinic_tx.h"
30#include "hinic_rx.h"
31#include "hinic_dev.h"
32
33MODULE_AUTHOR("Huawei Technologies CO., Ltd");
34MODULE_DESCRIPTION("Huawei Intelligent NIC driver");
35MODULE_LICENSE("GPL");
36
37static unsigned int tx_weight = 64;
38module_param(tx_weight, uint, 0644);
39MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)");
40
41static unsigned int rx_weight = 64;
42module_param(rx_weight, uint, 0644);
43MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)");
44
45#define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822
46#define HINIC_DEV_ID_DUAL_PORT_100GE 0x0200
47#define HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ 0x0205
48#define HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ 0x0210
49
50#define HINIC_WQ_NAME "hinic_dev"
51
52#define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \
53 NETIF_MSG_IFUP | \
54 NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR)
55
56#define HINIC_LRO_MAX_WQE_NUM_DEFAULT 8
57
58#define HINIC_LRO_RX_TIMER_DEFAULT 16
59
60#define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8)
61
62#define work_to_rx_mode_work(work) \
63 container_of(work, struct hinic_rx_mode_work, work)
64
65#define rx_mode_work_to_nic_dev(rx_mode_work) \
66 container_of(rx_mode_work, struct hinic_dev, rx_mode_work)
67
68static int change_mac_addr(struct net_device *netdev, const u8 *addr);
69
70static int set_features(struct hinic_dev *nic_dev,
71 netdev_features_t pre_features,
72 netdev_features_t features, bool force_change);
73
74static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq)
75{
76 struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats;
77 struct hinic_rxq_stats rx_stats;
78
79 u64_stats_init(&rx_stats.syncp);
80
81 hinic_rxq_get_stats(rxq, &rx_stats);
82
83 u64_stats_update_begin(&nic_rx_stats->syncp);
84 nic_rx_stats->bytes += rx_stats.bytes;
85 nic_rx_stats->pkts += rx_stats.pkts;
86 nic_rx_stats->errors += rx_stats.errors;
87 nic_rx_stats->csum_errors += rx_stats.csum_errors;
88 nic_rx_stats->other_errors += rx_stats.other_errors;
89 u64_stats_update_end(&nic_rx_stats->syncp);
90
91 hinic_rxq_clean_stats(rxq);
92}
93
94static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq)
95{
96 struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats;
97 struct hinic_txq_stats tx_stats;
98
99 u64_stats_init(&tx_stats.syncp);
100
101 hinic_txq_get_stats(txq, &tx_stats);
102
103 u64_stats_update_begin(&nic_tx_stats->syncp);
104 nic_tx_stats->bytes += tx_stats.bytes;
105 nic_tx_stats->pkts += tx_stats.pkts;
106 nic_tx_stats->tx_busy += tx_stats.tx_busy;
107 nic_tx_stats->tx_wake += tx_stats.tx_wake;
108 nic_tx_stats->tx_dropped += tx_stats.tx_dropped;
109 nic_tx_stats->big_frags_pkts += tx_stats.big_frags_pkts;
110 u64_stats_update_end(&nic_tx_stats->syncp);
111
112 hinic_txq_clean_stats(txq);
113}
114
115static void update_nic_stats(struct hinic_dev *nic_dev)
116{
117 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
118
119 for (i = 0; i < num_qps; i++)
120 update_rx_stats(nic_dev, &nic_dev->rxqs[i]);
121
122 for (i = 0; i < num_qps; i++)
123 update_tx_stats(nic_dev, &nic_dev->txqs[i]);
124}
125
126/**
127 * create_txqs - Create the Logical Tx Queues of specific NIC device
128 * @nic_dev: the specific NIC device
129 *
130 * Return 0 - Success, negative - Failure
131 **/
132static int create_txqs(struct hinic_dev *nic_dev)
133{
134 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
135 struct net_device *netdev = nic_dev->netdev;
136 size_t txq_size;
137
138 if (nic_dev->txqs)
139 return -EINVAL;
140
141 txq_size = num_txqs * sizeof(*nic_dev->txqs);
142 nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL);
143 if (!nic_dev->txqs)
144 return -ENOMEM;
145
146 for (i = 0; i < num_txqs; i++) {
147 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
148
149 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
150 if (err) {
151 netif_err(nic_dev, drv, netdev,
152 "Failed to init Txq\n");
153 goto err_init_txq;
154 }
155 }
156
157 return 0;
158
159err_init_txq:
160 for (j = 0; j < i; j++)
161 hinic_clean_txq(&nic_dev->txqs[j]);
162
163 devm_kfree(&netdev->dev, nic_dev->txqs);
164 return err;
165}
166
167/**
168 * free_txqs - Free the Logical Tx Queues of specific NIC device
169 * @nic_dev: the specific NIC device
170 **/
171static void free_txqs(struct hinic_dev *nic_dev)
172{
173 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
174 struct net_device *netdev = nic_dev->netdev;
175
176 if (!nic_dev->txqs)
177 return;
178
179 for (i = 0; i < num_txqs; i++)
180 hinic_clean_txq(&nic_dev->txqs[i]);
181
182 devm_kfree(&netdev->dev, nic_dev->txqs);
183 nic_dev->txqs = NULL;
184}
185
186/**
187 * create_txqs - Create the Logical Rx Queues of specific NIC device
188 * @nic_dev: the specific NIC device
189 *
190 * Return 0 - Success, negative - Failure
191 **/
192static int create_rxqs(struct hinic_dev *nic_dev)
193{
194 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
195 struct net_device *netdev = nic_dev->netdev;
196 size_t rxq_size;
197
198 if (nic_dev->rxqs)
199 return -EINVAL;
200
201 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs);
202 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL);
203 if (!nic_dev->rxqs)
204 return -ENOMEM;
205
206 for (i = 0; i < num_rxqs; i++) {
207 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
208
209 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
210 if (err) {
211 netif_err(nic_dev, drv, netdev,
212 "Failed to init rxq\n");
213 goto err_init_rxq;
214 }
215 }
216
217 return 0;
218
219err_init_rxq:
220 for (j = 0; j < i; j++)
221 hinic_clean_rxq(&nic_dev->rxqs[j]);
222
223 devm_kfree(&netdev->dev, nic_dev->rxqs);
224 return err;
225}
226
227/**
228 * free_txqs - Free the Logical Rx Queues of specific NIC device
229 * @nic_dev: the specific NIC device
230 **/
231static void free_rxqs(struct hinic_dev *nic_dev)
232{
233 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
234 struct net_device *netdev = nic_dev->netdev;
235
236 if (!nic_dev->rxqs)
237 return;
238
239 for (i = 0; i < num_rxqs; i++)
240 hinic_clean_rxq(&nic_dev->rxqs[i]);
241
242 devm_kfree(&netdev->dev, nic_dev->rxqs);
243 nic_dev->rxqs = NULL;
244}
245
246static int hinic_configure_max_qnum(struct hinic_dev *nic_dev)
247{
248 int err;
249
250 err = hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps);
251 if (err)
252 return err;
253
254 return 0;
255}
256
257static int hinic_rss_init(struct hinic_dev *nic_dev)
258{
259 u8 default_rss_key[HINIC_RSS_KEY_SIZE];
260 u8 tmpl_idx = nic_dev->rss_tmpl_idx;
261 u32 *indir_tbl;
262 int err, i;
263
264 indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL);
265 if (!indir_tbl)
266 return -ENOMEM;
267
268 netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key));
269 for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++)
270 indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss);
271
272 err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key);
273 if (err)
274 goto out;
275
276 err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl);
277 if (err)
278 goto out;
279
280 err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type);
281 if (err)
282 goto out;
283
284 err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx,
285 nic_dev->rss_hash_engine);
286 if (err)
287 goto out;
288
289 err = hinic_rss_cfg(nic_dev, 1, tmpl_idx);
290 if (err)
291 goto out;
292
293out:
294 kfree(indir_tbl);
295 return err;
296}
297
298static void hinic_rss_deinit(struct hinic_dev *nic_dev)
299{
300 hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx);
301}
302
303static void hinic_init_rss_parameters(struct hinic_dev *nic_dev)
304{
305 nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR;
306 nic_dev->rss_type.tcp_ipv6_ext = 1;
307 nic_dev->rss_type.ipv6_ext = 1;
308 nic_dev->rss_type.tcp_ipv6 = 1;
309 nic_dev->rss_type.ipv6 = 1;
310 nic_dev->rss_type.tcp_ipv4 = 1;
311 nic_dev->rss_type.ipv4 = 1;
312 nic_dev->rss_type.udp_ipv6 = 1;
313 nic_dev->rss_type.udp_ipv4 = 1;
314}
315
316static void hinic_enable_rss(struct hinic_dev *nic_dev)
317{
318 struct net_device *netdev = nic_dev->netdev;
319 struct hinic_hwdev *hwdev = nic_dev->hwdev;
320 struct hinic_hwif *hwif = hwdev->hwif;
321 struct pci_dev *pdev = hwif->pdev;
322 int i, node, err = 0;
323 u16 num_cpus = 0;
324
325 nic_dev->max_qps = hinic_hwdev_max_num_qps(hwdev);
326 if (nic_dev->max_qps <= 1) {
327 nic_dev->flags &= ~HINIC_RSS_ENABLE;
328 nic_dev->rss_limit = nic_dev->max_qps;
329 nic_dev->num_qps = nic_dev->max_qps;
330 nic_dev->num_rss = nic_dev->max_qps;
331
332 return;
333 }
334
335 err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx);
336 if (err) {
337 netif_err(nic_dev, drv, netdev,
338 "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n");
339 nic_dev->flags &= ~HINIC_RSS_ENABLE;
340 nic_dev->max_qps = 1;
341 nic_dev->rss_limit = nic_dev->max_qps;
342 nic_dev->num_qps = nic_dev->max_qps;
343 nic_dev->num_rss = nic_dev->max_qps;
344
345 return;
346 }
347
348 nic_dev->flags |= HINIC_RSS_ENABLE;
349
350 for (i = 0; i < num_online_cpus(); i++) {
351 node = cpu_to_node(i);
352 if (node == dev_to_node(&pdev->dev))
353 num_cpus++;
354 }
355
356 if (!num_cpus)
357 num_cpus = num_online_cpus();
358
359 nic_dev->num_qps = min_t(u16, nic_dev->max_qps, num_cpus);
360
361 nic_dev->rss_limit = nic_dev->num_qps;
362 nic_dev->num_rss = nic_dev->num_qps;
363
364 hinic_init_rss_parameters(nic_dev);
365 err = hinic_rss_init(nic_dev);
366 if (err)
367 netif_err(nic_dev, drv, netdev, "Failed to init rss\n");
368}
369
370static int hinic_open(struct net_device *netdev)
371{
372 struct hinic_dev *nic_dev = netdev_priv(netdev);
373 enum hinic_port_link_state link_state;
374 int err, ret;
375
376 if (!(nic_dev->flags & HINIC_INTF_UP)) {
377 err = hinic_hwdev_ifup(nic_dev->hwdev);
378 if (err) {
379 netif_err(nic_dev, drv, netdev,
380 "Failed - HW interface up\n");
381 return err;
382 }
383 }
384
385 err = create_txqs(nic_dev);
386 if (err) {
387 netif_err(nic_dev, drv, netdev,
388 "Failed to create Tx queues\n");
389 goto err_create_txqs;
390 }
391
392 err = create_rxqs(nic_dev);
393 if (err) {
394 netif_err(nic_dev, drv, netdev,
395 "Failed to create Rx queues\n");
396 goto err_create_rxqs;
397 }
398
399 hinic_enable_rss(nic_dev);
400
401 err = hinic_configure_max_qnum(nic_dev);
402 if (err) {
403 netif_err(nic_dev, drv, nic_dev->netdev,
404 "Failed to configure the maximum number of queues\n");
405 goto err_port_state;
406 }
407
408 netif_set_real_num_tx_queues(netdev, nic_dev->num_qps);
409 netif_set_real_num_rx_queues(netdev, nic_dev->num_qps);
410
411 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
412 if (err) {
413 netif_err(nic_dev, drv, netdev,
414 "Failed to set port state\n");
415 goto err_port_state;
416 }
417
418 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
419 if (err) {
420 netif_err(nic_dev, drv, netdev,
421 "Failed to set func port state\n");
422 goto err_func_port_state;
423 }
424
425 /* Wait up to 3 sec between port enable to link state */
426 msleep(3000);
427
428 down(&nic_dev->mgmt_lock);
429
430 err = hinic_port_link_state(nic_dev, &link_state);
431 if (err) {
432 netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
433 goto err_port_link;
434 }
435
436 if (link_state == HINIC_LINK_STATE_UP)
437 nic_dev->flags |= HINIC_LINK_UP;
438
439 nic_dev->flags |= HINIC_INTF_UP;
440
441 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
442 (HINIC_LINK_UP | HINIC_INTF_UP)) {
443 netif_info(nic_dev, drv, netdev, "link + intf UP\n");
444 netif_carrier_on(netdev);
445 netif_tx_wake_all_queues(netdev);
446 }
447
448 up(&nic_dev->mgmt_lock);
449
450 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
451 return 0;
452
453err_port_link:
454 up(&nic_dev->mgmt_lock);
455 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
456 if (ret)
457 netif_warn(nic_dev, drv, netdev,
458 "Failed to revert func port state\n");
459
460err_func_port_state:
461 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
462 if (ret)
463 netif_warn(nic_dev, drv, netdev,
464 "Failed to revert port state\n");
465err_port_state:
466 free_rxqs(nic_dev);
467 if (nic_dev->flags & HINIC_RSS_ENABLE) {
468 hinic_rss_deinit(nic_dev);
469 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
470 }
471
472err_create_rxqs:
473 free_txqs(nic_dev);
474
475err_create_txqs:
476 if (!(nic_dev->flags & HINIC_INTF_UP))
477 hinic_hwdev_ifdown(nic_dev->hwdev);
478 return err;
479}
480
481static int hinic_close(struct net_device *netdev)
482{
483 struct hinic_dev *nic_dev = netdev_priv(netdev);
484 unsigned int flags;
485 int err;
486
487 down(&nic_dev->mgmt_lock);
488
489 flags = nic_dev->flags;
490 nic_dev->flags &= ~HINIC_INTF_UP;
491
492 netif_carrier_off(netdev);
493 netif_tx_disable(netdev);
494
495 update_nic_stats(nic_dev);
496
497 up(&nic_dev->mgmt_lock);
498
499 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
500 if (err) {
501 netif_err(nic_dev, drv, netdev,
502 "Failed to set func port state\n");
503 nic_dev->flags |= (flags & HINIC_INTF_UP);
504 return err;
505 }
506
507 err = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
508 if (err) {
509 netif_err(nic_dev, drv, netdev, "Failed to set port state\n");
510 nic_dev->flags |= (flags & HINIC_INTF_UP);
511 return err;
512 }
513
514 if (nic_dev->flags & HINIC_RSS_ENABLE) {
515 hinic_rss_deinit(nic_dev);
516 hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
517 }
518
519 free_rxqs(nic_dev);
520 free_txqs(nic_dev);
521
522 if (flags & HINIC_INTF_UP)
523 hinic_hwdev_ifdown(nic_dev->hwdev);
524
525 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
526 return 0;
527}
528
529static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
530{
531 struct hinic_dev *nic_dev = netdev_priv(netdev);
532 int err;
533
534 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
535
536 err = hinic_port_set_mtu(nic_dev, new_mtu);
537 if (err)
538 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
539 else
540 netdev->mtu = new_mtu;
541
542 return err;
543}
544
545/**
546 * change_mac_addr - change the main mac address of network device
547 * @netdev: network device
548 * @addr: mac address to set
549 *
550 * Return 0 - Success, negative - Failure
551 **/
552static int change_mac_addr(struct net_device *netdev, const u8 *addr)
553{
554 struct hinic_dev *nic_dev = netdev_priv(netdev);
555 u16 vid = 0;
556 int err;
557
558 if (!is_valid_ether_addr(addr))
559 return -EADDRNOTAVAIL;
560
561 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
562 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
563
564 down(&nic_dev->mgmt_lock);
565
566 do {
567 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
568 if (err) {
569 netif_err(nic_dev, drv, netdev,
570 "Failed to delete mac\n");
571 break;
572 }
573
574 err = hinic_port_add_mac(nic_dev, addr, vid);
575 if (err) {
576 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
577 break;
578 }
579
580 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
581 } while (vid != VLAN_N_VID);
582
583 up(&nic_dev->mgmt_lock);
584 return err;
585}
586
587static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
588{
589 unsigned char new_mac[ETH_ALEN];
590 struct sockaddr *saddr = addr;
591 int err;
592
593 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
594
595 err = change_mac_addr(netdev, new_mac);
596 if (!err)
597 memcpy(netdev->dev_addr, new_mac, ETH_ALEN);
598
599 return err;
600}
601
602/**
603 * add_mac_addr - add mac address to network device
604 * @netdev: network device
605 * @addr: mac address to add
606 *
607 * Return 0 - Success, negative - Failure
608 **/
609static int add_mac_addr(struct net_device *netdev, const u8 *addr)
610{
611 struct hinic_dev *nic_dev = netdev_priv(netdev);
612 u16 vid = 0;
613 int err;
614
615 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
616 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
617
618 down(&nic_dev->mgmt_lock);
619
620 do {
621 err = hinic_port_add_mac(nic_dev, addr, vid);
622 if (err) {
623 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
624 break;
625 }
626
627 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
628 } while (vid != VLAN_N_VID);
629
630 up(&nic_dev->mgmt_lock);
631 return err;
632}
633
634/**
635 * remove_mac_addr - remove mac address from network device
636 * @netdev: network device
637 * @addr: mac address to remove
638 *
639 * Return 0 - Success, negative - Failure
640 **/
641static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
642{
643 struct hinic_dev *nic_dev = netdev_priv(netdev);
644 u16 vid = 0;
645 int err;
646
647 if (!is_valid_ether_addr(addr))
648 return -EADDRNOTAVAIL;
649
650 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
651 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
652
653 down(&nic_dev->mgmt_lock);
654
655 do {
656 err = hinic_port_del_mac(nic_dev, addr, vid);
657 if (err) {
658 netif_err(nic_dev, drv, netdev,
659 "Failed to delete mac\n");
660 break;
661 }
662
663 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
664 } while (vid != VLAN_N_VID);
665
666 up(&nic_dev->mgmt_lock);
667 return err;
668}
669
670static int hinic_vlan_rx_add_vid(struct net_device *netdev,
671 __always_unused __be16 proto, u16 vid)
672{
673 struct hinic_dev *nic_dev = netdev_priv(netdev);
674 int ret, err;
675
676 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
677
678 down(&nic_dev->mgmt_lock);
679
680 err = hinic_port_add_vlan(nic_dev, vid);
681 if (err) {
682 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
683 goto err_vlan_add;
684 }
685
686 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
687 if (err) {
688 netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
689 goto err_add_mac;
690 }
691
692 bitmap_set(nic_dev->vlan_bitmap, vid, 1);
693
694 up(&nic_dev->mgmt_lock);
695 return 0;
696
697err_add_mac:
698 ret = hinic_port_del_vlan(nic_dev, vid);
699 if (ret)
700 netif_err(nic_dev, drv, netdev,
701 "Failed to revert by removing vlan\n");
702
703err_vlan_add:
704 up(&nic_dev->mgmt_lock);
705 return err;
706}
707
708static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
709 __always_unused __be16 proto, u16 vid)
710{
711 struct hinic_dev *nic_dev = netdev_priv(netdev);
712 int err;
713
714 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
715
716 down(&nic_dev->mgmt_lock);
717
718 err = hinic_port_del_vlan(nic_dev, vid);
719 if (err) {
720 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
721 goto err_del_vlan;
722 }
723
724 bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
725
726 up(&nic_dev->mgmt_lock);
727 return 0;
728
729err_del_vlan:
730 up(&nic_dev->mgmt_lock);
731 return err;
732}
733
734static void set_rx_mode(struct work_struct *work)
735{
736 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
737 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
738
739 netif_info(nic_dev, drv, nic_dev->netdev, "set rx mode work\n");
740
741 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
742
743 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
744 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
745}
746
747static void hinic_set_rx_mode(struct net_device *netdev)
748{
749 struct hinic_dev *nic_dev = netdev_priv(netdev);
750 struct hinic_rx_mode_work *rx_mode_work;
751 u32 rx_mode;
752
753 rx_mode_work = &nic_dev->rx_mode_work;
754
755 rx_mode = HINIC_RX_MODE_UC |
756 HINIC_RX_MODE_MC |
757 HINIC_RX_MODE_BC;
758
759 if (netdev->flags & IFF_PROMISC)
760 rx_mode |= HINIC_RX_MODE_PROMISC;
761 else if (netdev->flags & IFF_ALLMULTI)
762 rx_mode |= HINIC_RX_MODE_MC_ALL;
763
764 rx_mode_work->rx_mode = rx_mode;
765
766 queue_work(nic_dev->workq, &rx_mode_work->work);
767}
768
769static void hinic_tx_timeout(struct net_device *netdev)
770{
771 struct hinic_dev *nic_dev = netdev_priv(netdev);
772
773 netif_err(nic_dev, drv, netdev, "Tx timeout\n");
774}
775
776static void hinic_get_stats64(struct net_device *netdev,
777 struct rtnl_link_stats64 *stats)
778{
779 struct hinic_dev *nic_dev = netdev_priv(netdev);
780 struct hinic_rxq_stats *nic_rx_stats;
781 struct hinic_txq_stats *nic_tx_stats;
782
783 nic_rx_stats = &nic_dev->rx_stats;
784 nic_tx_stats = &nic_dev->tx_stats;
785
786 down(&nic_dev->mgmt_lock);
787
788 if (nic_dev->flags & HINIC_INTF_UP)
789 update_nic_stats(nic_dev);
790
791 up(&nic_dev->mgmt_lock);
792
793 stats->rx_bytes = nic_rx_stats->bytes;
794 stats->rx_packets = nic_rx_stats->pkts;
795 stats->rx_errors = nic_rx_stats->errors;
796
797 stats->tx_bytes = nic_tx_stats->bytes;
798 stats->tx_packets = nic_tx_stats->pkts;
799 stats->tx_errors = nic_tx_stats->tx_dropped;
800}
801
802static int hinic_set_features(struct net_device *netdev,
803 netdev_features_t features)
804{
805 struct hinic_dev *nic_dev = netdev_priv(netdev);
806
807 return set_features(nic_dev, nic_dev->netdev->features,
808 features, false);
809}
810
811static netdev_features_t hinic_fix_features(struct net_device *netdev,
812 netdev_features_t features)
813{
814 struct hinic_dev *nic_dev = netdev_priv(netdev);
815
816 /* If Rx checksum is disabled, then LRO should also be disabled */
817 if (!(features & NETIF_F_RXCSUM)) {
818 netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n");
819 features &= ~NETIF_F_LRO;
820 }
821
822 return features;
823}
824
825static const struct net_device_ops hinic_netdev_ops = {
826 .ndo_open = hinic_open,
827 .ndo_stop = hinic_close,
828 .ndo_change_mtu = hinic_change_mtu,
829 .ndo_set_mac_address = hinic_set_mac_addr,
830 .ndo_validate_addr = eth_validate_addr,
831 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
832 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
833 .ndo_set_rx_mode = hinic_set_rx_mode,
834 .ndo_start_xmit = hinic_xmit_frame,
835 .ndo_tx_timeout = hinic_tx_timeout,
836 .ndo_get_stats64 = hinic_get_stats64,
837 .ndo_fix_features = hinic_fix_features,
838 .ndo_set_features = hinic_set_features,
839};
840
841static void netdev_features_init(struct net_device *netdev)
842{
843 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
844 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
845 NETIF_F_RXCSUM | NETIF_F_LRO |
846 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
847
848 netdev->vlan_features = netdev->hw_features;
849
850 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
851}
852
853/**
854 * link_status_event_handler - link event handler
855 * @handle: nic device for the handler
856 * @buf_in: input buffer
857 * @in_size: input size
858 * @buf_in: output buffer
859 * @out_size: returned output size
860 *
861 * Return 0 - Success, negative - Failure
862 **/
863static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
864 void *buf_out, u16 *out_size)
865{
866 struct hinic_port_link_status *link_status, *ret_link_status;
867 struct hinic_dev *nic_dev = handle;
868
869 link_status = buf_in;
870
871 if (link_status->link == HINIC_LINK_STATE_UP) {
872 down(&nic_dev->mgmt_lock);
873
874 nic_dev->flags |= HINIC_LINK_UP;
875
876 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
877 (HINIC_LINK_UP | HINIC_INTF_UP)) {
878 netif_carrier_on(nic_dev->netdev);
879 netif_tx_wake_all_queues(nic_dev->netdev);
880 }
881
882 up(&nic_dev->mgmt_lock);
883
884 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
885 } else {
886 down(&nic_dev->mgmt_lock);
887
888 nic_dev->flags &= ~HINIC_LINK_UP;
889
890 netif_carrier_off(nic_dev->netdev);
891 netif_tx_disable(nic_dev->netdev);
892
893 up(&nic_dev->mgmt_lock);
894
895 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
896 }
897
898 ret_link_status = buf_out;
899 ret_link_status->status = 0;
900
901 *out_size = sizeof(*ret_link_status);
902}
903
904static int set_features(struct hinic_dev *nic_dev,
905 netdev_features_t pre_features,
906 netdev_features_t features, bool force_change)
907{
908 netdev_features_t changed = force_change ? ~0 : pre_features ^ features;
909 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN;
910 int err = 0;
911
912 if (changed & NETIF_F_TSO)
913 err = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ?
914 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE);
915
916 if (changed & NETIF_F_RXCSUM)
917 err = hinic_set_rx_csum_offload(nic_dev, csum_en);
918
919 if (changed & NETIF_F_LRO) {
920 err = hinic_set_rx_lro_state(nic_dev,
921 !!(features & NETIF_F_LRO),
922 HINIC_LRO_RX_TIMER_DEFAULT,
923 HINIC_LRO_MAX_WQE_NUM_DEFAULT);
924 }
925
926 if (changed & NETIF_F_HW_VLAN_CTAG_RX)
927 err = hinic_set_rx_vlan_offload(nic_dev,
928 !!(features &
929 NETIF_F_HW_VLAN_CTAG_RX));
930
931 return err;
932}
933
934/**
935 * nic_dev_init - Initialize the NIC device
936 * @pdev: the NIC pci device
937 *
938 * Return 0 - Success, negative - Failure
939 **/
940static int nic_dev_init(struct pci_dev *pdev)
941{
942 struct hinic_rx_mode_work *rx_mode_work;
943 struct hinic_txq_stats *tx_stats;
944 struct hinic_rxq_stats *rx_stats;
945 struct hinic_dev *nic_dev;
946 struct net_device *netdev;
947 struct hinic_hwdev *hwdev;
948 int err, num_qps;
949
950 hwdev = hinic_init_hwdev(pdev);
951 if (IS_ERR(hwdev)) {
952 dev_err(&pdev->dev, "Failed to initialize HW device\n");
953 return PTR_ERR(hwdev);
954 }
955
956 num_qps = hinic_hwdev_num_qps(hwdev);
957 if (num_qps <= 0) {
958 dev_err(&pdev->dev, "Invalid number of QPS\n");
959 err = -EINVAL;
960 goto err_num_qps;
961 }
962
963 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
964 if (!netdev) {
965 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
966 err = -ENOMEM;
967 goto err_alloc_etherdev;
968 }
969
970 hinic_set_ethtool_ops(netdev);
971 netdev->netdev_ops = &hinic_netdev_ops;
972 netdev->max_mtu = ETH_MAX_MTU;
973
974 nic_dev = netdev_priv(netdev);
975 nic_dev->netdev = netdev;
976 nic_dev->hwdev = hwdev;
977 nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
978 nic_dev->flags = 0;
979 nic_dev->txqs = NULL;
980 nic_dev->rxqs = NULL;
981 nic_dev->tx_weight = tx_weight;
982 nic_dev->rx_weight = rx_weight;
983
984 sema_init(&nic_dev->mgmt_lock, 1);
985
986 tx_stats = &nic_dev->tx_stats;
987 rx_stats = &nic_dev->rx_stats;
988
989 u64_stats_init(&tx_stats->syncp);
990 u64_stats_init(&rx_stats->syncp);
991
992 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
993 VLAN_BITMAP_SIZE(nic_dev),
994 GFP_KERNEL);
995 if (!nic_dev->vlan_bitmap) {
996 err = -ENOMEM;
997 goto err_vlan_bitmap;
998 }
999
1000 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
1001 if (!nic_dev->workq) {
1002 err = -ENOMEM;
1003 goto err_workq;
1004 }
1005
1006 pci_set_drvdata(pdev, netdev);
1007
1008 err = hinic_port_get_mac(nic_dev, netdev->dev_addr);
1009 if (err)
1010 dev_warn(&pdev->dev, "Failed to get mac address\n");
1011
1012 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0);
1013 if (err) {
1014 dev_err(&pdev->dev, "Failed to add mac\n");
1015 goto err_add_mac;
1016 }
1017
1018 err = hinic_port_set_mtu(nic_dev, netdev->mtu);
1019 if (err) {
1020 dev_err(&pdev->dev, "Failed to set mtu\n");
1021 goto err_set_mtu;
1022 }
1023
1024 rx_mode_work = &nic_dev->rx_mode_work;
1025 INIT_WORK(&rx_mode_work->work, set_rx_mode);
1026
1027 netdev_features_init(netdev);
1028
1029 netif_carrier_off(netdev);
1030
1031 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
1032 nic_dev, link_status_event_handler);
1033
1034 err = set_features(nic_dev, 0, nic_dev->netdev->features, true);
1035 if (err)
1036 goto err_set_features;
1037
1038 SET_NETDEV_DEV(netdev, &pdev->dev);
1039
1040 err = register_netdev(netdev);
1041 if (err) {
1042 dev_err(&pdev->dev, "Failed to register netdev\n");
1043 goto err_reg_netdev;
1044 }
1045
1046 return 0;
1047
1048err_reg_netdev:
1049err_set_features:
1050 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1051 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1052 cancel_work_sync(&rx_mode_work->work);
1053
1054err_set_mtu:
1055err_add_mac:
1056 pci_set_drvdata(pdev, NULL);
1057 destroy_workqueue(nic_dev->workq);
1058
1059err_workq:
1060err_vlan_bitmap:
1061 free_netdev(netdev);
1062
1063err_alloc_etherdev:
1064err_num_qps:
1065 hinic_free_hwdev(hwdev);
1066 return err;
1067}
1068
1069static int hinic_probe(struct pci_dev *pdev,
1070 const struct pci_device_id *id)
1071{
1072 int err = pci_enable_device(pdev);
1073
1074 if (err) {
1075 dev_err(&pdev->dev, "Failed to enable PCI device\n");
1076 return err;
1077 }
1078
1079 err = pci_request_regions(pdev, HINIC_DRV_NAME);
1080 if (err) {
1081 dev_err(&pdev->dev, "Failed to request PCI regions\n");
1082 goto err_pci_regions;
1083 }
1084
1085 pci_set_master(pdev);
1086
1087 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1088 if (err) {
1089 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n");
1090 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1091 if (err) {
1092 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1093 goto err_dma_mask;
1094 }
1095 }
1096
1097 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1098 if (err) {
1099 dev_warn(&pdev->dev,
1100 "Couldn't set 64-bit consistent DMA mask\n");
1101 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1102 if (err) {
1103 dev_err(&pdev->dev,
1104 "Failed to set consistent DMA mask\n");
1105 goto err_dma_consistent_mask;
1106 }
1107 }
1108
1109 err = nic_dev_init(pdev);
1110 if (err) {
1111 dev_err(&pdev->dev, "Failed to initialize NIC device\n");
1112 goto err_nic_dev_init;
1113 }
1114
1115 dev_info(&pdev->dev, "HiNIC driver - probed\n");
1116 return 0;
1117
1118err_nic_dev_init:
1119err_dma_consistent_mask:
1120err_dma_mask:
1121 pci_release_regions(pdev);
1122
1123err_pci_regions:
1124 pci_disable_device(pdev);
1125 return err;
1126}
1127
1128static void hinic_remove(struct pci_dev *pdev)
1129{
1130 struct net_device *netdev = pci_get_drvdata(pdev);
1131 struct hinic_dev *nic_dev = netdev_priv(netdev);
1132 struct hinic_rx_mode_work *rx_mode_work;
1133
1134 unregister_netdev(netdev);
1135
1136 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1137 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1138
1139 rx_mode_work = &nic_dev->rx_mode_work;
1140 cancel_work_sync(&rx_mode_work->work);
1141
1142 pci_set_drvdata(pdev, NULL);
1143
1144 destroy_workqueue(nic_dev->workq);
1145
1146 hinic_free_hwdev(nic_dev->hwdev);
1147
1148 free_netdev(netdev);
1149
1150 pci_release_regions(pdev);
1151 pci_disable_device(pdev);
1152
1153 dev_info(&pdev->dev, "HiNIC driver - removed\n");
1154}
1155
1156static void hinic_shutdown(struct pci_dev *pdev)
1157{
1158 pci_disable_device(pdev);
1159}
1160
1161static const struct pci_device_id hinic_pci_table[] = {
1162 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
1163 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
1164 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0},
1165 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0},
1166 { 0, 0}
1167};
1168MODULE_DEVICE_TABLE(pci, hinic_pci_table);
1169
1170static struct pci_driver hinic_driver = {
1171 .name = HINIC_DRV_NAME,
1172 .id_table = hinic_pci_table,
1173 .probe = hinic_probe,
1174 .remove = hinic_remove,
1175 .shutdown = hinic_shutdown,
1176};
1177
1178module_pci_driver(hinic_driver);