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[mirror_ubuntu-bionic-kernel.git] / drivers / net / ethernet / huawei / hinic / hinic_main.c
CommitLineData
51ba902a
AK		 1/*
2 * Huawei HiNIC PCI Express Linux driver
3 * Copyright(c) 2017 Huawei Technologies Co., Ltd
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * for more details.
13 *
14 */
15
25a3ba61 16#include <linux/kernel.h>
51ba902a 17#include <linux/module.h>
e2585ea7 18#include <linux/moduleparam.h>
51ba902a
AK		 19#include <linux/pci.h>
20#include <linux/device.h>
21#include <linux/errno.h>
22#include <linux/types.h>
23#include <linux/etherdevice.h>
24#include <linux/netdevice.h>
25a3ba61
AK		 25#include <linux/slab.h>
26#include <linux/if_vlan.h>
27#include <linux/semaphore.h>
c4d06d2d 28#include <linux/workqueue.h>
25a3ba61
AK		 29#include <net/ip.h>
30#include <linux/bitops.h>
31#include <linux/bitmap.h>
c4d06d2d 32#include <linux/delay.h>
51ba902a
AK		 33#include <linux/err.h>
34
c3e79baf 35#include "hinic_hw_qp.h"
51ba902a 36#include "hinic_hw_dev.h"
25a3ba61 37#include "hinic_port.h"
c3e79baf
AK		 38#include "hinic_tx.h"
39#include "hinic_rx.h"
51ba902a
AK		 40#include "hinic_dev.h"
41
42MODULE_AUTHOR("Huawei Technologies CO., Ltd");
43MODULE_DESCRIPTION("Huawei Intelligent NIC driver");
44MODULE_LICENSE("GPL");
45
00e57a6d
AK		 46static unsigned int tx_weight = 64;
47module_param(tx_weight, uint, 0644);
48MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)");
49
e2585ea7
AK		 50static unsigned int rx_weight = 64;
51module_param(rx_weight, uint, 0644);
52MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)");
53
e0b4774a
ZC		 54#define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822
55#define HINIC_DEV_ID_DUAL_PORT_25GE 0x0200
56#define HINIC_DEV_ID_DUAL_PORT_100GE 0x0201
51ba902a 57
c4d06d2d
AK		 58#define HINIC_WQ_NAME "hinic_dev"
59
51ba902a
AK		 60#define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \
61 NETIF_MSG_IFUP | \
62 NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR)
63
25a3ba61
AK		 64#define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8)
65
c4d06d2d
AK		 66#define work_to_rx_mode_work(work) \
67 container_of(work, struct hinic_rx_mode_work, work)
68
69#define rx_mode_work_to_nic_dev(rx_mode_work) \
70 container_of(rx_mode_work, struct hinic_dev, rx_mode_work)
71
72static int change_mac_addr(struct net_device *netdev, const u8 *addr);
73
edd384f6
AK		 74static void set_link_speed(struct ethtool_link_ksettings *link_ksettings,
75 enum hinic_speed speed)
76{
77 switch (speed) {
78 case HINIC_SPEED_10MB_LINK:
79 link_ksettings->base.speed = SPEED_10;
80 break;
81
82 case HINIC_SPEED_100MB_LINK:
83 link_ksettings->base.speed = SPEED_100;
84 break;
85
86 case HINIC_SPEED_1000MB_LINK:
87 link_ksettings->base.speed = SPEED_1000;
88 break;
89
90 case HINIC_SPEED_10GB_LINK:
91 link_ksettings->base.speed = SPEED_10000;
92 break;
93
94 case HINIC_SPEED_25GB_LINK:
95 link_ksettings->base.speed = SPEED_25000;
96 break;
97
98 case HINIC_SPEED_40GB_LINK:
99 link_ksettings->base.speed = SPEED_40000;
100 break;
101
102 case HINIC_SPEED_100GB_LINK:
103 link_ksettings->base.speed = SPEED_100000;
104 break;
105
106 default:
107 link_ksettings->base.speed = SPEED_UNKNOWN;
108 break;
109 }
110}
111
112static int hinic_get_link_ksettings(struct net_device *netdev,
113 struct ethtool_link_ksettings
114 *link_ksettings)
115{
116 struct hinic_dev *nic_dev = netdev_priv(netdev);
117 enum hinic_port_link_state link_state;
118 struct hinic_port_cap port_cap;
119 int err;
120
121 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
122 ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
123 Autoneg);
124
125 link_ksettings->base.speed = SPEED_UNKNOWN;
126 link_ksettings->base.autoneg = AUTONEG_DISABLE;
127 link_ksettings->base.duplex = DUPLEX_UNKNOWN;
128
129 err = hinic_port_get_cap(nic_dev, &port_cap);
130 if (err) {
131 netif_err(nic_dev, drv, netdev,
132 "Failed to get port capabilities\n");
133 return err;
134 }
135
136 err = hinic_port_link_state(nic_dev, &link_state);
137 if (err) {
138 netif_err(nic_dev, drv, netdev,
139 "Failed to get port link state\n");
140 return err;
141 }
142
143 if (link_state != HINIC_LINK_STATE_UP) {
144 netif_info(nic_dev, drv, netdev, "No link\n");
145 return err;
146 }
147
148 set_link_speed(link_ksettings, port_cap.speed);
149
150 if (!!(port_cap.autoneg_cap & HINIC_AUTONEG_SUPPORTED))
151 ethtool_link_ksettings_add_link_mode(link_ksettings,
152 advertising, Autoneg);
153
154 if (port_cap.autoneg_state == HINIC_AUTONEG_ACTIVE)
155 link_ksettings->base.autoneg = AUTONEG_ENABLE;
156
157 link_ksettings->base.duplex = (port_cap.duplex == HINIC_DUPLEX_FULL) ?
158 DUPLEX_FULL : DUPLEX_HALF;
159 return 0;
160}
161
162static void hinic_get_drvinfo(struct net_device *netdev,
163 struct ethtool_drvinfo *info)
164{
165 struct hinic_dev *nic_dev = netdev_priv(netdev);
166 struct hinic_hwdev *hwdev = nic_dev->hwdev;
167 struct hinic_hwif *hwif = hwdev->hwif;
168
169 strlcpy(info->driver, HINIC_DRV_NAME, sizeof(info->driver));
170 strlcpy(info->bus_info, pci_name(hwif->pdev), sizeof(info->bus_info));
171}
172
173static void hinic_get_ringparam(struct net_device *netdev,
174 struct ethtool_ringparam *ring)
175{
176 ring->rx_max_pending = HINIC_RQ_DEPTH;
177 ring->tx_max_pending = HINIC_SQ_DEPTH;
178 ring->rx_pending = HINIC_RQ_DEPTH;
179 ring->tx_pending = HINIC_SQ_DEPTH;
180}
181
182static void hinic_get_channels(struct net_device *netdev,
183 struct ethtool_channels *channels)
184{
185 struct hinic_dev *nic_dev = netdev_priv(netdev);
186 struct hinic_hwdev *hwdev = nic_dev->hwdev;
187
188 channels->max_rx = hwdev->nic_cap.max_qps;
189 channels->max_tx = hwdev->nic_cap.max_qps;
190 channels->max_other = 0;
191 channels->max_combined = 0;
192 channels->rx_count = hinic_hwdev_num_qps(hwdev);
193 channels->tx_count = hinic_hwdev_num_qps(hwdev);
194 channels->other_count = 0;
195 channels->combined_count = 0;
196}
197
198static const struct ethtool_ops hinic_ethtool_ops = {
199 .get_link_ksettings = hinic_get_link_ksettings,
200 .get_drvinfo = hinic_get_drvinfo,
201 .get_link = ethtool_op_get_link,
202 .get_ringparam = hinic_get_ringparam,
203 .get_channels = hinic_get_channels,
204};
205
206static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq)
207{
208 struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats;
209 struct hinic_rxq_stats rx_stats;
210
211 u64_stats_init(&rx_stats.syncp);
212
213 hinic_rxq_get_stats(rxq, &rx_stats);
214
215 u64_stats_update_begin(&nic_rx_stats->syncp);
216 nic_rx_stats->bytes += rx_stats.bytes;
217 nic_rx_stats->pkts += rx_stats.pkts;
218 u64_stats_update_end(&nic_rx_stats->syncp);
219
220 hinic_rxq_clean_stats(rxq);
221}
222
223static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq)
224{
225 struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats;
226 struct hinic_txq_stats tx_stats;
227
228 u64_stats_init(&tx_stats.syncp);
229
230 hinic_txq_get_stats(txq, &tx_stats);
231
232 u64_stats_update_begin(&nic_tx_stats->syncp);
233 nic_tx_stats->bytes += tx_stats.bytes;
234 nic_tx_stats->pkts += tx_stats.pkts;
235 nic_tx_stats->tx_busy += tx_stats.tx_busy;
236 nic_tx_stats->tx_wake += tx_stats.tx_wake;
237 nic_tx_stats->tx_dropped += tx_stats.tx_dropped;
238 u64_stats_update_end(&nic_tx_stats->syncp);
239
240 hinic_txq_clean_stats(txq);
241}
242
243static void update_nic_stats(struct hinic_dev *nic_dev)
244{
245 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
246
247 for (i = 0; i < num_qps; i++)
248 update_rx_stats(nic_dev, &nic_dev->rxqs[i]);
249
250 for (i = 0; i < num_qps; i++)
251 update_tx_stats(nic_dev, &nic_dev->txqs[i]);
252}
253
c3e79baf
AK		 254/**
255 * create_txqs - Create the Logical Tx Queues of specific NIC device
256 * @nic_dev: the specific NIC device
257 *
258 * Return 0 - Success, negative - Failure
259 **/
260static int create_txqs(struct hinic_dev *nic_dev)
261{
262 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
263 struct net_device *netdev = nic_dev->netdev;
264 size_t txq_size;
265
266 if (nic_dev->txqs)
267 return -EINVAL;
268
269 txq_size = num_txqs * sizeof(*nic_dev->txqs);
270 nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL);
271 if (!nic_dev->txqs)
272 return -ENOMEM;
273
274 for (i = 0; i < num_txqs; i++) {
275 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
276
277 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
278 if (err) {
279 netif_err(nic_dev, drv, netdev,
280 "Failed to init Txq\n");
281 goto err_init_txq;
282 }
283 }
284
285 return 0;
286
287err_init_txq:
288 for (j = 0; j < i; j++)
289 hinic_clean_txq(&nic_dev->txqs[j]);
290
291 devm_kfree(&netdev->dev, nic_dev->txqs);
292 return err;
293}
294
295/**
296 * free_txqs - Free the Logical Tx Queues of specific NIC device
297 * @nic_dev: the specific NIC device
298 **/
299static void free_txqs(struct hinic_dev *nic_dev)
300{
301 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
302 struct net_device *netdev = nic_dev->netdev;
303
304 if (!nic_dev->txqs)
305 return;
306
307 for (i = 0; i < num_txqs; i++)
308 hinic_clean_txq(&nic_dev->txqs[i]);
309
310 devm_kfree(&netdev->dev, nic_dev->txqs);
311 nic_dev->txqs = NULL;
312}
313
314/**
315 * create_txqs - Create the Logical Rx Queues of specific NIC device
316 * @nic_dev: the specific NIC device
317 *
318 * Return 0 - Success, negative - Failure
319 **/
320static int create_rxqs(struct hinic_dev *nic_dev)
321{
322 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
323 struct net_device *netdev = nic_dev->netdev;
324 size_t rxq_size;
325
326 if (nic_dev->rxqs)
327 return -EINVAL;
328
329 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs);
330 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL);
331 if (!nic_dev->rxqs)
332 return -ENOMEM;
333
334 for (i = 0; i < num_rxqs; i++) {
335 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
336
337 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
338 if (err) {
339 netif_err(nic_dev, drv, netdev,
340 "Failed to init rxq\n");
341 goto err_init_rxq;
342 }
343 }
344
345 return 0;
346
347err_init_rxq:
348 for (j = 0; j < i; j++)
349 hinic_clean_rxq(&nic_dev->rxqs[j]);
350
351 devm_kfree(&netdev->dev, nic_dev->rxqs);
352 return err;
353}
354
355/**
356 * free_txqs - Free the Logical Rx Queues of specific NIC device
357 * @nic_dev: the specific NIC device
358 **/
359static void free_rxqs(struct hinic_dev *nic_dev)
360{
361 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
362 struct net_device *netdev = nic_dev->netdev;
363
364 if (!nic_dev->rxqs)
365 return;
366
367 for (i = 0; i < num_rxqs; i++)
368 hinic_clean_rxq(&nic_dev->rxqs[i]);
369
370 devm_kfree(&netdev->dev, nic_dev->rxqs);
371 nic_dev->rxqs = NULL;
372}
373
c4d06d2d
AK		 374static int hinic_open(struct net_device *netdev)
375{
376 struct hinic_dev *nic_dev = netdev_priv(netdev);
377 enum hinic_port_link_state link_state;
c3e79baf
AK		 378 int err, ret, num_qps;
379
380 if (!(nic_dev->flags & HINIC_INTF_UP)) {
381 err = hinic_hwdev_ifup(nic_dev->hwdev);
382 if (err) {
383 netif_err(nic_dev, drv, netdev,
384 "Failed - HW interface up\n");
385 return err;
386 }
387 }
388
389 err = create_txqs(nic_dev);
390 if (err) {
391 netif_err(nic_dev, drv, netdev,
392 "Failed to create Tx queues\n");
393 goto err_create_txqs;
394 }
395
396 err = create_rxqs(nic_dev);
397 if (err) {
398 netif_err(nic_dev, drv, netdev,
399 "Failed to create Rx queues\n");
400 goto err_create_rxqs;
401 }
402
403 num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
404 netif_set_real_num_tx_queues(netdev, num_qps);
405 netif_set_real_num_rx_queues(netdev, num_qps);
c4d06d2d
AK		 406
407 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
408 if (err) {
409 netif_err(nic_dev, drv, netdev,
410 "Failed to set port state\n");
c3e79baf 411 goto err_port_state;
c4d06d2d
AK		 412 }
413
e2585ea7
AK		 414 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
415 if (err) {
416 netif_err(nic_dev, drv, netdev,
417 "Failed to set func port state\n");
418 goto err_func_port_state;
419 }
420
c4d06d2d
AK		 421 /* Wait up to 3 sec between port enable to link state */
422 msleep(3000);
423
424 down(&nic_dev->mgmt_lock);
425
426 err = hinic_port_link_state(nic_dev, &link_state);
427 if (err) {
428 netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
429 goto err_port_link;
430 }
431
432 if (link_state == HINIC_LINK_STATE_UP)
433 nic_dev->flags |= HINIC_LINK_UP;
434
435 nic_dev->flags |= HINIC_INTF_UP;
436
437 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
438 (HINIC_LINK_UP | HINIC_INTF_UP)) {
439 netif_info(nic_dev, drv, netdev, "link + intf UP\n");
440 netif_carrier_on(netdev);
441 netif_tx_wake_all_queues(netdev);
442 }
443
444 up(&nic_dev->mgmt_lock);
445
446 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
447 return 0;
448
449err_port_link:
450 up(&nic_dev->mgmt_lock);
e2585ea7
AK		 451 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
452 if (ret)
453 netif_warn(nic_dev, drv, netdev,
454 "Failed to revert func port state\n");
455
456err_func_port_state:
c4d06d2d
AK		 457 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
458 if (ret)
459 netif_warn(nic_dev, drv, netdev,
460 "Failed to revert port state\n");
c3e79baf
AK		 461
462err_port_state:
463 free_rxqs(nic_dev);
464
465err_create_rxqs:
466 free_txqs(nic_dev);
467
468err_create_txqs:
469 if (!(nic_dev->flags & HINIC_INTF_UP))
470 hinic_hwdev_ifdown(nic_dev->hwdev);
c4d06d2d
AK		 471 return err;
472}
473
474static int hinic_close(struct net_device *netdev)
475{
476 struct hinic_dev *nic_dev = netdev_priv(netdev);
477 unsigned int flags;
478 int err;
479
480 down(&nic_dev->mgmt_lock);
481
482 flags = nic_dev->flags;
483 nic_dev->flags &= ~HINIC_INTF_UP;
484
485 netif_carrier_off(netdev);
486 netif_tx_disable(netdev);
487
edd384f6
AK		 488 update_nic_stats(nic_dev);
489
c4d06d2d
AK		 490 up(&nic_dev->mgmt_lock);
491
e2585ea7
AK		 492 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
493 if (err) {
494 netif_err(nic_dev, drv, netdev,
495 "Failed to set func port state\n");
496 nic_dev->flags |= (flags & HINIC_INTF_UP);
497 return err;
498 }
499
c4d06d2d
AK		 500 err = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
501 if (err) {
502 netif_err(nic_dev, drv, netdev, "Failed to set port state\n");
503 nic_dev->flags |= (flags & HINIC_INTF_UP);
504 return err;
505 }
506
c3e79baf
AK		 507 free_rxqs(nic_dev);
508 free_txqs(nic_dev);
509
510 if (flags & HINIC_INTF_UP)
511 hinic_hwdev_ifdown(nic_dev->hwdev);
512
c4d06d2d
AK		 513 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
514 return 0;
515}
516
25a3ba61
AK		 517static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
518{
519 struct hinic_dev *nic_dev = netdev_priv(netdev);
520 int err;
521
522 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
523
524 err = hinic_port_set_mtu(nic_dev, new_mtu);
525 if (err)
526 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
527 else
528 netdev->mtu = new_mtu;
529
530 return err;
531}
532
533/**
534 * change_mac_addr - change the main mac address of network device
535 * @netdev: network device
536 * @addr: mac address to set
537 *
538 * Return 0 - Success, negative - Failure
539 **/
540static int change_mac_addr(struct net_device *netdev, const u8 *addr)
541{
542 struct hinic_dev *nic_dev = netdev_priv(netdev);
543 u16 vid = 0;
544 int err;
545
546 if (!is_valid_ether_addr(addr))
547 return -EADDRNOTAVAIL;
548
549 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
550 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
551
552 down(&nic_dev->mgmt_lock);
553
554 do {
555 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
556 if (err) {
557 netif_err(nic_dev, drv, netdev,
558 "Failed to delete mac\n");
559 break;
560 }
561
562 err = hinic_port_add_mac(nic_dev, addr, vid);
563 if (err) {
564 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
565 break;
566 }
567
568 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
569 } while (vid != VLAN_N_VID);
570
571 up(&nic_dev->mgmt_lock);
572 return err;
573}
574
575static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
576{
577 unsigned char new_mac[ETH_ALEN];
578 struct sockaddr *saddr = addr;
579 int err;
580
581 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
582
583 err = change_mac_addr(netdev, new_mac);
584 if (!err)
585 memcpy(netdev->dev_addr, new_mac, ETH_ALEN);
586
587 return err;
588}
589
c4d06d2d
AK		 590/**
591 * add_mac_addr - add mac address to network device
592 * @netdev: network device
593 * @addr: mac address to add
594 *
595 * Return 0 - Success, negative - Failure
596 **/
597static int add_mac_addr(struct net_device *netdev, const u8 *addr)
598{
599 struct hinic_dev *nic_dev = netdev_priv(netdev);
600 u16 vid = 0;
601 int err;
602
c4d06d2d
AK		 603 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
604 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
605
606 down(&nic_dev->mgmt_lock);
607
608 do {
609 err = hinic_port_add_mac(nic_dev, addr, vid);
610 if (err) {
611 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
612 break;
613 }
614
615 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
616 } while (vid != VLAN_N_VID);
617
618 up(&nic_dev->mgmt_lock);
619 return err;
620}
621
622/**
623 * remove_mac_addr - remove mac address from network device
624 * @netdev: network device
625 * @addr: mac address to remove
626 *
627 * Return 0 - Success, negative - Failure
628 **/
629static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
630{
631 struct hinic_dev *nic_dev = netdev_priv(netdev);
632 u16 vid = 0;
633 int err;
634
635 if (!is_valid_ether_addr(addr))
636 return -EADDRNOTAVAIL;
637
638 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
639 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
640
641 down(&nic_dev->mgmt_lock);
642
643 do {
644 err = hinic_port_del_mac(nic_dev, addr, vid);
645 if (err) {
646 netif_err(nic_dev, drv, netdev,
647 "Failed to delete mac\n");
648 break;
649 }
650
651 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
652 } while (vid != VLAN_N_VID);
653
654 up(&nic_dev->mgmt_lock);
655 return err;
656}
657
25a3ba61
AK		 658static int hinic_vlan_rx_add_vid(struct net_device *netdev,
659 __always_unused __be16 proto, u16 vid)
660{
661 struct hinic_dev *nic_dev = netdev_priv(netdev);
662 int ret, err;
663
664 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
665
666 down(&nic_dev->mgmt_lock);
667
668 err = hinic_port_add_vlan(nic_dev, vid);
669 if (err) {
670 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
671 goto err_vlan_add;
672 }
673
674 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
675 if (err) {
676 netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
677 goto err_add_mac;
678 }
679
680 bitmap_set(nic_dev->vlan_bitmap, vid, 1);
681
682 up(&nic_dev->mgmt_lock);
683 return 0;
684
685err_add_mac:
686 ret = hinic_port_del_vlan(nic_dev, vid);
687 if (ret)
688 netif_err(nic_dev, drv, netdev,
689 "Failed to revert by removing vlan\n");
690
691err_vlan_add:
692 up(&nic_dev->mgmt_lock);
693 return err;
694}
695
696static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
697 __always_unused __be16 proto, u16 vid)
698{
699 struct hinic_dev *nic_dev = netdev_priv(netdev);
700 int err;
701
702 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
703
704 down(&nic_dev->mgmt_lock);
705
706 err = hinic_port_del_vlan(nic_dev, vid);
707 if (err) {
708 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
709 goto err_del_vlan;
710 }
711
712 bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
713
714 up(&nic_dev->mgmt_lock);
715 return 0;
716
717err_del_vlan:
718 up(&nic_dev->mgmt_lock);
719 return err;
720}
721
c4d06d2d
AK		 722static void set_rx_mode(struct work_struct *work)
723{
724 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
725 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
10467d92 726 struct netdev_hw_addr *ha;
c4d06d2d
AK		 727
728 netif_info(nic_dev, drv, nic_dev->netdev, "set rx mode work\n");
729
730 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
731
732 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
733 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
10467d92
XC		 734
735 netdev_for_each_mc_addr(ha, nic_dev->netdev)
736 add_mac_addr(nic_dev->netdev, ha->addr);
c4d06d2d
AK		 737}
738
739static void hinic_set_rx_mode(struct net_device *netdev)
740{
741 struct hinic_dev *nic_dev = netdev_priv(netdev);
742 struct hinic_rx_mode_work *rx_mode_work;
743 u32 rx_mode;
744
745 rx_mode_work = &nic_dev->rx_mode_work;
746
747 rx_mode = HINIC_RX_MODE_UC |
748 HINIC_RX_MODE_MC |
749 HINIC_RX_MODE_BC;
750
751 if (netdev->flags & IFF_PROMISC)
752 rx_mode |= HINIC_RX_MODE_PROMISC;
753 else if (netdev->flags & IFF_ALLMULTI)
754 rx_mode |= HINIC_RX_MODE_MC_ALL;
755
756 rx_mode_work->rx_mode = rx_mode;
757
758 queue_work(nic_dev->workq, &rx_mode_work->work);
759}
760
00e57a6d 761static void hinic_tx_timeout(struct net_device *netdev)
c4d06d2d 762{
00e57a6d
AK		 763 struct hinic_dev *nic_dev = netdev_priv(netdev);
764
765 netif_err(nic_dev, drv, netdev, "Tx timeout\n");
c4d06d2d
AK		 766}
767
edd384f6
AK		 768static void hinic_get_stats64(struct net_device *netdev,
769 struct rtnl_link_stats64 *stats)
770{
771 struct hinic_dev *nic_dev = netdev_priv(netdev);
772 struct hinic_rxq_stats *nic_rx_stats;
773 struct hinic_txq_stats *nic_tx_stats;
774
775 nic_rx_stats = &nic_dev->rx_stats;
776 nic_tx_stats = &nic_dev->tx_stats;
777
778 down(&nic_dev->mgmt_lock);
779
780 if (nic_dev->flags & HINIC_INTF_UP)
781 update_nic_stats(nic_dev);
782
783 up(&nic_dev->mgmt_lock);
784
785 stats->rx_bytes = nic_rx_stats->bytes;
786 stats->rx_packets = nic_rx_stats->pkts;
787
788 stats->tx_bytes = nic_tx_stats->bytes;
789 stats->tx_packets = nic_tx_stats->pkts;
790 stats->tx_errors = nic_tx_stats->tx_dropped;
791}
792
51ba902a 793static const struct net_device_ops hinic_netdev_ops = {
c4d06d2d
AK		 794 .ndo_open = hinic_open,
795 .ndo_stop = hinic_close,
25a3ba61
AK		 796 .ndo_change_mtu = hinic_change_mtu,
797 .ndo_set_mac_address = hinic_set_mac_addr,
798 .ndo_validate_addr = eth_validate_addr,
799 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
800 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
c4d06d2d
AK		 801 .ndo_set_rx_mode = hinic_set_rx_mode,
802 .ndo_start_xmit = hinic_xmit_frame,
00e57a6d 803 .ndo_tx_timeout = hinic_tx_timeout,
edd384f6 804 .ndo_get_stats64 = hinic_get_stats64,
51ba902a
AK		 805};
806
25a3ba61
AK		 807static void netdev_features_init(struct net_device *netdev)
808{
49ea1963 809 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
c71b8f9c
XC		 810 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
811 NETIF_F_RXCSUM;
25a3ba61
AK		 812
813 netdev->vlan_features = netdev->hw_features;
814
815 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
816}
817
c4d06d2d
AK		 818/**
819 * link_status_event_handler - link event handler
820 * @handle: nic device for the handler
821 * @buf_in: input buffer
822 * @in_size: input size
823 * @buf_in: output buffer
824 * @out_size: returned output size
825 *
826 * Return 0 - Success, negative - Failure
827 **/
828static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
829 void *buf_out, u16 *out_size)
830{
831 struct hinic_port_link_status *link_status, *ret_link_status;
832 struct hinic_dev *nic_dev = handle;
833
834 link_status = buf_in;
835
836 if (link_status->link == HINIC_LINK_STATE_UP) {
837 down(&nic_dev->mgmt_lock);
838
839 nic_dev->flags |= HINIC_LINK_UP;
840
841 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
842 (HINIC_LINK_UP | HINIC_INTF_UP)) {
843 netif_carrier_on(nic_dev->netdev);
844 netif_tx_wake_all_queues(nic_dev->netdev);
845 }
846
847 up(&nic_dev->mgmt_lock);
848
849 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
850 } else {
851 down(&nic_dev->mgmt_lock);
852
853 nic_dev->flags &= ~HINIC_LINK_UP;
854
855 netif_carrier_off(nic_dev->netdev);
856 netif_tx_disable(nic_dev->netdev);
857
858 up(&nic_dev->mgmt_lock);
859
860 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
861 }
862
863 ret_link_status = buf_out;
864 ret_link_status->status = 0;
865
866 *out_size = sizeof(*ret_link_status);
867}
868
49ea1963
ZC		 869static int set_features(struct hinic_dev *nic_dev,
870 netdev_features_t pre_features,
871 netdev_features_t features, bool force_change)
872{
873 netdev_features_t changed = force_change ? ~0 : pre_features ^ features;
c71b8f9c 874 u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN;
49ea1963
ZC		 875 int err = 0;
876
877 if (changed & NETIF_F_TSO)
878 err = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ?
879 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE);
880
c71b8f9c
XC		 881 if (changed & NETIF_F_RXCSUM)
882 err = hinic_set_rx_csum_offload(nic_dev, csum_en);
883
49ea1963
ZC		 884 return err;
885}
886
51ba902a
AK		 887/**
888 * nic_dev_init - Initialize the NIC device
889 * @pdev: the NIC pci device
890 *
891 * Return 0 - Success, negative - Failure
892 **/
893static int nic_dev_init(struct pci_dev *pdev)
894{
c4d06d2d 895 struct hinic_rx_mode_work *rx_mode_work;
edd384f6
AK		 896 struct hinic_txq_stats *tx_stats;
897 struct hinic_rxq_stats *rx_stats;
51ba902a
AK		 898 struct hinic_dev *nic_dev;
899 struct net_device *netdev;
900 struct hinic_hwdev *hwdev;
901 int err, num_qps;
902
903 hwdev = hinic_init_hwdev(pdev);
904 if (IS_ERR(hwdev)) {
905 dev_err(&pdev->dev, "Failed to initialize HW device\n");
906 return PTR_ERR(hwdev);
907 }
908
909 num_qps = hinic_hwdev_num_qps(hwdev);
910 if (num_qps <= 0) {
911 dev_err(&pdev->dev, "Invalid number of QPS\n");
912 err = -EINVAL;
913 goto err_num_qps;
914 }
915
916 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
917 if (!netdev) {
918 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
919 err = -ENOMEM;
920 goto err_alloc_etherdev;
921 }
922
923 netdev->netdev_ops = &hinic_netdev_ops;
edd384f6 924 netdev->ethtool_ops = &hinic_ethtool_ops;
52f31422 925 netdev->max_mtu = ETH_MAX_MTU;
51ba902a
AK		 926
927 nic_dev = netdev_priv(netdev);
928 nic_dev->netdev = netdev;
929 nic_dev->hwdev = hwdev;
930 nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
c4d06d2d 931 nic_dev->flags = 0;
c3e79baf
AK		 932 nic_dev->txqs = NULL;
933 nic_dev->rxqs = NULL;
00e57a6d 934 nic_dev->tx_weight = tx_weight;
e2585ea7 935 nic_dev->rx_weight = rx_weight;
51ba902a 936
25a3ba61
AK		 937 sema_init(&nic_dev->mgmt_lock, 1);
938
edd384f6
AK		 939 tx_stats = &nic_dev->tx_stats;
940 rx_stats = &nic_dev->rx_stats;
941
942 u64_stats_init(&tx_stats->syncp);
943 u64_stats_init(&rx_stats->syncp);
944
25a3ba61
AK		 945 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
946 VLAN_BITMAP_SIZE(nic_dev),
947 GFP_KERNEL);
948 if (!nic_dev->vlan_bitmap) {
949 err = -ENOMEM;
950 goto err_vlan_bitmap;
951 }
952
c4d06d2d
AK		 953 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
954 if (!nic_dev->workq) {
955 err = -ENOMEM;
956 goto err_workq;
957 }
958
51ba902a
AK		 959 pci_set_drvdata(pdev, netdev);
960
25a3ba61
AK		 961 err = hinic_port_get_mac(nic_dev, netdev->dev_addr);
962 if (err)
963 dev_warn(&pdev->dev, "Failed to get mac address\n");
964
965 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0);
966 if (err) {
967 dev_err(&pdev->dev, "Failed to add mac\n");
968 goto err_add_mac;
969 }
970
971 err = hinic_port_set_mtu(nic_dev, netdev->mtu);
972 if (err) {
973 dev_err(&pdev->dev, "Failed to set mtu\n");
974 goto err_set_mtu;
975 }
976
c4d06d2d
AK		 977 rx_mode_work = &nic_dev->rx_mode_work;
978 INIT_WORK(&rx_mode_work->work, set_rx_mode);
979
25a3ba61
AK		 980 netdev_features_init(netdev);
981
51ba902a
AK		 982 netif_carrier_off(netdev);
983
c4d06d2d
AK		 984 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
985 nic_dev, link_status_event_handler);
986
49ea1963
ZC		 987 err = set_features(nic_dev, 0, nic_dev->netdev->features, true);
988 if (err)
989 goto err_set_features;
990
c9c67fc1 991 SET_NETDEV_DEV(netdev, &pdev->dev);
49ea1963 992
51ba902a
AK		 993 err = register_netdev(netdev);
994 if (err) {
995 dev_err(&pdev->dev, "Failed to register netdev\n");
996 goto err_reg_netdev;
997 }
998
999 return 0;
1000
1001err_reg_netdev:
49ea1963 1002err_set_features:
c4d06d2d
AK		 1003 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1004 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1005 cancel_work_sync(&rx_mode_work->work);
1006
25a3ba61
AK		 1007err_set_mtu:
1008err_add_mac:
51ba902a 1009 pci_set_drvdata(pdev, NULL);
c4d06d2d 1010 destroy_workqueue(nic_dev->workq);
25a3ba61 1011
c4d06d2d 1012err_workq:
25a3ba61 1013err_vlan_bitmap:
51ba902a
AK		 1014 free_netdev(netdev);
1015
1016err_alloc_etherdev:
1017err_num_qps:
1018 hinic_free_hwdev(hwdev);
1019 return err;
1020}
1021
1022static int hinic_probe(struct pci_dev *pdev,
1023 const struct pci_device_id *id)
1024{
1025 int err = pci_enable_device(pdev);
1026
1027 if (err) {
1028 dev_err(&pdev->dev, "Failed to enable PCI device\n");
1029 return err;
1030 }
1031
1032 err = pci_request_regions(pdev, HINIC_DRV_NAME);
1033 if (err) {
1034 dev_err(&pdev->dev, "Failed to request PCI regions\n");
1035 goto err_pci_regions;
1036 }
1037
1038 pci_set_master(pdev);
1039
1040 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1041 if (err) {
1042 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n");
1043 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1044 if (err) {
1045 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1046 goto err_dma_mask;
1047 }
1048 }
1049
1050 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1051 if (err) {
1052 dev_warn(&pdev->dev,
1053 "Couldn't set 64-bit consistent DMA mask\n");
1054 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1055 if (err) {
1056 dev_err(&pdev->dev,
1057 "Failed to set consistent DMA mask\n");
1058 goto err_dma_consistent_mask;
1059 }
1060 }
1061
1062 err = nic_dev_init(pdev);
1063 if (err) {
1064 dev_err(&pdev->dev, "Failed to initialize NIC device\n");
1065 goto err_nic_dev_init;
1066 }
1067
1068 dev_info(&pdev->dev, "HiNIC driver - probed\n");
1069 return 0;
1070
1071err_nic_dev_init:
1072err_dma_consistent_mask:
1073err_dma_mask:
1074 pci_release_regions(pdev);
1075
1076err_pci_regions:
1077 pci_disable_device(pdev);
1078 return err;
1079}
1080
1081static void hinic_remove(struct pci_dev *pdev)
1082{
1083 struct net_device *netdev = pci_get_drvdata(pdev);
1084 struct hinic_dev *nic_dev = netdev_priv(netdev);
c4d06d2d 1085 struct hinic_rx_mode_work *rx_mode_work;
51ba902a
AK		 1086
1087 unregister_netdev(netdev);
1088
c4d06d2d
AK		 1089 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1090 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1091
1092 rx_mode_work = &nic_dev->rx_mode_work;
1093 cancel_work_sync(&rx_mode_work->work);
1094
51ba902a
AK		 1095 pci_set_drvdata(pdev, NULL);
1096
c4d06d2d
AK		 1097 destroy_workqueue(nic_dev->workq);
1098
51ba902a
AK		 1099 hinic_free_hwdev(nic_dev->hwdev);
1100
1101 free_netdev(netdev);
1102
1103 pci_release_regions(pdev);
1104 pci_disable_device(pdev);
1105
1106 dev_info(&pdev->dev, "HiNIC driver - removed\n");
1107}
1108
ac632682
XC		 1109static void hinic_shutdown(struct pci_dev *pdev)
1110{
1111 pci_disable_device(pdev);
1112}
1113
51ba902a 1114static const struct pci_device_id hinic_pci_table[] = {
e0b4774a
ZC		 1115 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
1116 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_25GE), 0},
1117 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
51ba902a
AK		 1118 { 0, 0}
1119};
1120MODULE_DEVICE_TABLE(pci, hinic_pci_table);
1121
1122static struct pci_driver hinic_driver = {
1123 .name = HINIC_DRV_NAME,
1124 .id_table = hinic_pci_table,
1125 .probe = hinic_probe,
1126 .remove = hinic_remove,
ac632682 1127 .shutdown = hinic_shutdown,
51ba902a
AK		 1128};
1129
1130module_pci_driver(hinic_driver);
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