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net: ethernet: aquantia: Null pointer check for aq_nic_ndev_alloc.
[linux-block.git] / drivers / net / ethernet / aquantia / atlantic / aq_nic.c
CommitLineData
97bde5c4
DV		 1/*
2 * aQuantia Corporation Network Driver
3 * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
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
10/* File aq_nic.c: Definition of common code for NIC. */
11
12#include "aq_nic.h"
13#include "aq_ring.h"
14#include "aq_vec.h"
15#include "aq_hw.h"
16#include "aq_pci_func.h"
17#include "aq_nic_internal.h"
18
19#include <linux/netdevice.h>
20#include <linux/etherdevice.h>
21#include <linux/timer.h>
22#include <linux/cpu.h>
23#include <linux/ip.h>
24#include <linux/tcp.h>
25#include <net/ip.h>
26
27static void aq_nic_rss_init(struct aq_nic_s *self, unsigned int num_rss_queues)
28{
29 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
30 struct aq_rss_parameters *rss_params = &cfg->aq_rss;
31 int i = 0;
32
33 static u8 rss_key[40] = {
34 0x1e, 0xad, 0x71, 0x87, 0x65, 0xfc, 0x26, 0x7d,
35 0x0d, 0x45, 0x67, 0x74, 0xcd, 0x06, 0x1a, 0x18,
36 0xb6, 0xc1, 0xf0, 0xc7, 0xbb, 0x18, 0xbe, 0xf8,
37 0x19, 0x13, 0x4b, 0xa9, 0xd0, 0x3e, 0xfe, 0x70,
38 0x25, 0x03, 0xab, 0x50, 0x6a, 0x8b, 0x82, 0x0c
39 };
40
41 rss_params->hash_secret_key_size = sizeof(rss_key);
42 memcpy(rss_params->hash_secret_key, rss_key, sizeof(rss_key));
43 rss_params->indirection_table_size = AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
44
45 for (i = rss_params->indirection_table_size; i--;)
46 rss_params->indirection_table[i] = i & (num_rss_queues - 1);
47}
48
49/* Fills aq_nic_cfg with valid defaults */
50static void aq_nic_cfg_init_defaults(struct aq_nic_s *self)
51{
52 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
53
54 cfg->aq_hw_caps = &self->aq_hw_caps;
55
56 cfg->vecs = AQ_CFG_VECS_DEF;
57 cfg->tcs = AQ_CFG_TCS_DEF;
58
59 cfg->rxds = AQ_CFG_RXDS_DEF;
60 cfg->txds = AQ_CFG_TXDS_DEF;
61
62 cfg->is_polling = AQ_CFG_IS_POLLING_DEF;
63
64 cfg->is_interrupt_moderation = AQ_CFG_IS_INTERRUPT_MODERATION_DEF;
65 cfg->itr = cfg->is_interrupt_moderation ?
66 AQ_CFG_INTERRUPT_MODERATION_RATE_DEF : 0U;
67
68 cfg->is_rss = AQ_CFG_IS_RSS_DEF;
69 cfg->num_rss_queues = AQ_CFG_NUM_RSS_QUEUES_DEF;
70 cfg->aq_rss.base_cpu_number = AQ_CFG_RSS_BASE_CPU_NUM_DEF;
71 cfg->flow_control = AQ_CFG_FC_MODE;
72
73 cfg->mtu = AQ_CFG_MTU_DEF;
74 cfg->link_speed_msk = AQ_CFG_SPEED_MSK;
75 cfg->is_autoneg = AQ_CFG_IS_AUTONEG_DEF;
76
77 cfg->is_lro = AQ_CFG_IS_LRO_DEF;
78
79 cfg->vlan_id = 0U;
80
81 aq_nic_rss_init(self, cfg->num_rss_queues);
82}
83
84/* Checks hw_caps and 'corrects' aq_nic_cfg in runtime */
85int aq_nic_cfg_start(struct aq_nic_s *self)
86{
87 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
88
89 /*descriptors */
90 cfg->rxds = min(cfg->rxds, cfg->aq_hw_caps->rxds);
91 cfg->txds = min(cfg->txds, cfg->aq_hw_caps->txds);
92
93 /*rss rings */
94 cfg->vecs = min(cfg->vecs, cfg->aq_hw_caps->vecs);
95 cfg->vecs = min(cfg->vecs, num_online_cpus());
96 /* cfg->vecs should be power of 2 for RSS */
97 if (cfg->vecs >= 8U)
98 cfg->vecs = 8U;
99 else if (cfg->vecs >= 4U)
100 cfg->vecs = 4U;
101 else if (cfg->vecs >= 2U)
102 cfg->vecs = 2U;
103 else
104 cfg->vecs = 1U;
105
106 cfg->irq_type = aq_pci_func_get_irq_type(self->aq_pci_func);
107
108 if ((cfg->irq_type == AQ_HW_IRQ_LEGACY) ||
109 (self->aq_hw_caps.vecs == 1U) ||
110 (cfg->vecs == 1U)) {
111 cfg->is_rss = 0U;
112 cfg->vecs = 1U;
113 }
114
115 cfg->link_speed_msk &= self->aq_hw_caps.link_speed_msk;
116 cfg->hw_features = self->aq_hw_caps.hw_features;
117 return 0;
118}
119
120static void aq_nic_service_timer_cb(unsigned long param)
121{
122 struct aq_nic_s *self = (struct aq_nic_s *)param;
123 struct net_device *ndev = aq_nic_get_ndev(self);
124 int err = 0;
97bde5c4
DV		 125 unsigned int i = 0U;
126 struct aq_hw_link_status_s link_status;
127 struct aq_ring_stats_rx_s stats_rx;
128 struct aq_ring_stats_tx_s stats_tx;
129
97bde5c4
DV		 130 if (aq_utils_obj_test(&self->header.flags, AQ_NIC_FLAGS_IS_NOT_READY))
131 goto err_exit;
132
133 err = self->aq_hw_ops.hw_get_link_status(self->aq_hw, &link_status);
134 if (err < 0)
135 goto err_exit;
136
137 self->aq_hw_ops.hw_interrupt_moderation_set(self->aq_hw,
138 self->aq_nic_cfg.is_interrupt_moderation);
139
140 if (memcmp(&link_status, &self->link_status, sizeof(link_status))) {
141 if (link_status.mbps) {
142 aq_utils_obj_set(&self->header.flags,
143 AQ_NIC_FLAG_STARTED);
144 aq_utils_obj_clear(&self->header.flags,
145 AQ_NIC_LINK_DOWN);
146 netif_carrier_on(self->ndev);
147 } else {
148 netif_carrier_off(self->ndev);
149 aq_utils_obj_set(&self->header.flags, AQ_NIC_LINK_DOWN);
150 }
151
152 self->link_status = link_status;
153 }
154
155 memset(&stats_rx, 0U, sizeof(struct aq_ring_stats_rx_s));
156 memset(&stats_tx, 0U, sizeof(struct aq_ring_stats_tx_s));
157 for (i = AQ_DIMOF(self->aq_vec); i--;) {
158 if (self->aq_vec[i])
159 aq_vec_add_stats(self->aq_vec[i], &stats_rx, &stats_tx);
160 }
161
162 ndev->stats.rx_packets = stats_rx.packets;
163 ndev->stats.rx_bytes = stats_rx.bytes;
164 ndev->stats.rx_errors = stats_rx.errors;
165 ndev->stats.tx_packets = stats_tx.packets;
166 ndev->stats.tx_bytes = stats_tx.bytes;
167 ndev->stats.tx_errors = stats_tx.errors;
168
169err_exit:
97bde5c4
DV		 170 mod_timer(&self->service_timer,
171 jiffies + AQ_CFG_SERVICE_TIMER_INTERVAL);
172}
173
174static void aq_nic_polling_timer_cb(unsigned long param)
175{
176 struct aq_nic_s *self = (struct aq_nic_s *)param;
177 struct aq_vec_s *aq_vec = NULL;
178 unsigned int i = 0U;
179
180 for (i = 0U, aq_vec = self->aq_vec[0];
181 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
182 aq_vec_isr(i, (void *)aq_vec);
183
184 mod_timer(&self->polling_timer, jiffies +
185 AQ_CFG_POLLING_TIMER_INTERVAL);
186}
187
188static struct net_device *aq_nic_ndev_alloc(void)
189{
190 return alloc_etherdev_mq(sizeof(struct aq_nic_s), AQ_CFG_VECS_MAX);
191}
192
193struct aq_nic_s *aq_nic_alloc_cold(const struct net_device_ops *ndev_ops,
194 const struct ethtool_ops *et_ops,
195 struct device *dev,
196 struct aq_pci_func_s *aq_pci_func,
197 unsigned int port,
198 const struct aq_hw_ops *aq_hw_ops)
199{
200 struct net_device *ndev = NULL;
201 struct aq_nic_s *self = NULL;
202 int err = 0;
203
204 ndev = aq_nic_ndev_alloc();
df9000ef
PB		 205 if (!ndev) {
206 err = -ENOMEM;
97bde5c4
DV		 207 goto err_exit;
208 }
209
df9000ef
PB		 210 self = netdev_priv(ndev);
211
97bde5c4
DV		 212 ndev->netdev_ops = ndev_ops;
213 ndev->ethtool_ops = et_ops;
214
215 SET_NETDEV_DEV(ndev, dev);
216
217 ndev->if_port = port;
5513e164 218 ndev->min_mtu = ETH_MIN_MTU;
97bde5c4
DV		 219 self->ndev = ndev;
220
221 self->aq_pci_func = aq_pci_func;
222
223 self->aq_hw_ops = *aq_hw_ops;
224 self->port = (u8)port;
225
226 self->aq_hw = self->aq_hw_ops.create(aq_pci_func, self->port,
227 &self->aq_hw_ops);
228 err = self->aq_hw_ops.get_hw_caps(self->aq_hw, &self->aq_hw_caps);
229 if (err < 0)
230 goto err_exit;
231
232 aq_nic_cfg_init_defaults(self);
233
234err_exit:
235 if (err < 0) {
236 aq_nic_free_hot_resources(self);
237 self = NULL;
238 }
239 return self;
240}
241
242int aq_nic_ndev_register(struct aq_nic_s *self)
243{
244 int err = 0;
245 unsigned int i = 0U;
246
247 if (!self->ndev) {
248 err = -EINVAL;
249 goto err_exit;
250 }
251 err = self->aq_hw_ops.hw_get_mac_permanent(self->aq_hw,
252 self->aq_nic_cfg.aq_hw_caps,
253 self->ndev->dev_addr);
254 if (err < 0)
255 goto err_exit;
256
257#if defined(AQ_CFG_MAC_ADDR_PERMANENT)
258 {
259 static u8 mac_addr_permanent[] = AQ_CFG_MAC_ADDR_PERMANENT;
260
261 ether_addr_copy(self->ndev->dev_addr, mac_addr_permanent);
262 }
263#endif
264 err = register_netdev(self->ndev);
265 if (err < 0)
266 goto err_exit;
267
268 self->is_ndev_registered = true;
269 netif_carrier_off(self->ndev);
270
271 for (i = AQ_CFG_VECS_MAX; i--;)
272 aq_nic_ndev_queue_stop(self, i);
273
274err_exit:
275 return err;
276}
277
278int aq_nic_ndev_init(struct aq_nic_s *self)
279{
280 struct aq_hw_caps_s *aq_hw_caps = self->aq_nic_cfg.aq_hw_caps;
281 struct aq_nic_cfg_s *aq_nic_cfg = &self->aq_nic_cfg;
282
283 self->ndev->hw_features |= aq_hw_caps->hw_features;
284 self->ndev->features = aq_hw_caps->hw_features;
285 self->ndev->priv_flags = aq_hw_caps->hw_priv_flags;
286 self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN;
287
288 return 0;
289}
290
291void aq_nic_ndev_free(struct aq_nic_s *self)
292{
293 if (!self->ndev)
294 goto err_exit;
295
296 if (self->is_ndev_registered)
297 unregister_netdev(self->ndev);
298
299 if (self->aq_hw)
300 self->aq_hw_ops.destroy(self->aq_hw);
301
302 free_netdev(self->ndev);
303
304err_exit:;
305}
306
307struct aq_nic_s *aq_nic_alloc_hot(struct net_device *ndev)
308{
309 struct aq_nic_s *self = NULL;
310 int err = 0;
311
312 if (!ndev) {
313 err = -EINVAL;
314 goto err_exit;
315 }
316 self = netdev_priv(ndev);
317
318 if (!self) {
319 err = -EINVAL;
320 goto err_exit;
321 }
322 if (netif_running(ndev)) {
323 unsigned int i;
324
325 for (i = AQ_CFG_VECS_MAX; i--;)
326 netif_stop_subqueue(ndev, i);
327 }
328
329 for (self->aq_vecs = 0; self->aq_vecs < self->aq_nic_cfg.vecs;
330 self->aq_vecs++) {
331 self->aq_vec[self->aq_vecs] =
332 aq_vec_alloc(self, self->aq_vecs, &self->aq_nic_cfg);
333 if (!self->aq_vec[self->aq_vecs]) {
334 err = -ENOMEM;
335 goto err_exit;
336 }
337 }
338
339err_exit:
340 if (err < 0) {
341 aq_nic_free_hot_resources(self);
342 self = NULL;
343 }
344 return self;
345}
346
347void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx,
348 struct aq_ring_s *ring)
349{
350 self->aq_ring_tx[idx] = ring;
351}
352
353struct device *aq_nic_get_dev(struct aq_nic_s *self)
354{
355 return self->ndev->dev.parent;
356}
357
358struct net_device *aq_nic_get_ndev(struct aq_nic_s *self)
359{
360 return self->ndev;
361}
362
363int aq_nic_init(struct aq_nic_s *self)
364{
365 struct aq_vec_s *aq_vec = NULL;
366 int err = 0;
367 unsigned int i = 0U;
368
369 self->power_state = AQ_HW_POWER_STATE_D0;
370 err = self->aq_hw_ops.hw_reset(self->aq_hw);
371 if (err < 0)
372 goto err_exit;
373
374 err = self->aq_hw_ops.hw_init(self->aq_hw, &self->aq_nic_cfg,
375 aq_nic_get_ndev(self)->dev_addr);
376 if (err < 0)
377 goto err_exit;
378
379 for (i = 0U, aq_vec = self->aq_vec[0];
380 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
381 aq_vec_init(aq_vec, &self->aq_hw_ops, self->aq_hw);
382
383err_exit:
384 return err;
385}
386
387void aq_nic_ndev_queue_start(struct aq_nic_s *self, unsigned int idx)
388{
389 netif_start_subqueue(self->ndev, idx);
390}
391
392void aq_nic_ndev_queue_stop(struct aq_nic_s *self, unsigned int idx)
393{
394 netif_stop_subqueue(self->ndev, idx);
395}
396
397int aq_nic_start(struct aq_nic_s *self)
398{
399 struct aq_vec_s *aq_vec = NULL;
400 int err = 0;
401 unsigned int i = 0U;
402
403 err = self->aq_hw_ops.hw_multicast_list_set(self->aq_hw,
404 self->mc_list.ar,
405 self->mc_list.count);
406 if (err < 0)
407 goto err_exit;
408
409 err = self->aq_hw_ops.hw_packet_filter_set(self->aq_hw,
410 self->packet_filter);
411 if (err < 0)
412 goto err_exit;
413
414 for (i = 0U, aq_vec = self->aq_vec[0];
415 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
416 err = aq_vec_start(aq_vec);
417 if (err < 0)
418 goto err_exit;
419 }
420
421 err = self->aq_hw_ops.hw_start(self->aq_hw);
422 if (err < 0)
423 goto err_exit;
424
425 err = self->aq_hw_ops.hw_interrupt_moderation_set(self->aq_hw,
426 self->aq_nic_cfg.is_interrupt_moderation);
427 if (err < 0)
428 goto err_exit;
429 setup_timer(&self->service_timer, &aq_nic_service_timer_cb,
430 (unsigned long)self);
431 mod_timer(&self->service_timer, jiffies +
432 AQ_CFG_SERVICE_TIMER_INTERVAL);
433
434 if (self->aq_nic_cfg.is_polling) {
435 setup_timer(&self->polling_timer, &aq_nic_polling_timer_cb,
436 (unsigned long)self);
437 mod_timer(&self->polling_timer, jiffies +
438 AQ_CFG_POLLING_TIMER_INTERVAL);
439 } else {
440 for (i = 0U, aq_vec = self->aq_vec[0];
441 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
442 err = aq_pci_func_alloc_irq(self->aq_pci_func, i,
443 self->ndev->name, aq_vec,
444 aq_vec_get_affinity_mask(aq_vec));
445 if (err < 0)
446 goto err_exit;
447 }
448
449 err = self->aq_hw_ops.hw_irq_enable(self->aq_hw,
450 AQ_CFG_IRQ_MASK);
451 if (err < 0)
452 goto err_exit;
453 }
454
455 for (i = 0U, aq_vec = self->aq_vec[0];
456 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
457 aq_nic_ndev_queue_start(self, i);
458
459 err = netif_set_real_num_tx_queues(self->ndev, self->aq_vecs);
460 if (err < 0)
461 goto err_exit;
462
463 err = netif_set_real_num_rx_queues(self->ndev, self->aq_vecs);
464 if (err < 0)
465 goto err_exit;
466
467err_exit:
468 return err;
469}
470
471static unsigned int aq_nic_map_skb_frag(struct aq_nic_s *self,
472 struct sk_buff *skb,
473 struct aq_ring_buff_s *dx)
474{
475 unsigned int ret = 0U;
476 unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
477 unsigned int frag_count = 0U;
478
479 dx->flags = 0U;
480 dx->len = skb_headlen(skb);
481 dx->pa = dma_map_single(aq_nic_get_dev(self), skb->data, dx->len,
482 DMA_TO_DEVICE);
483 dx->len_pkt = skb->len;
484 dx->is_sop = 1U;
485 dx->is_mapped = 1U;
486
487 ++ret;
488
489 if (skb->ip_summed == CHECKSUM_PARTIAL) {
490 dx->is_ip_cso = (htons(ETH_P_IP) == skb->protocol) ? 1U : 0U;
491 dx->is_tcp_cso =
492 (ip_hdr(skb)->protocol == IPPROTO_TCP) ? 1U : 0U;
493 dx->is_udp_cso =
494 (ip_hdr(skb)->protocol == IPPROTO_UDP) ? 1U : 0U;
495 }
496
497 for (; nr_frags--; ++frag_count) {
498 unsigned int frag_len;
499 dma_addr_t frag_pa;
500 skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count];
501
502 frag_len = skb_frag_size(frag);
503
504 frag_pa = skb_frag_dma_map(aq_nic_get_dev(self), frag, 0,
505 frag_len, DMA_TO_DEVICE);
506
507 while (frag_len > AQ_CFG_TX_FRAME_MAX) {
508 ++dx;
509 ++ret;
510 dx->flags = 0U;
511 dx->len = AQ_CFG_TX_FRAME_MAX;
512 dx->pa = frag_pa;
513 dx->is_mapped = 1U;
514
515 frag_len -= AQ_CFG_TX_FRAME_MAX;
516 frag_pa += AQ_CFG_TX_FRAME_MAX;
517 }
518
519 ++dx;
520 ++ret;
521
522 dx->flags = 0U;
523 dx->len = frag_len;
524 dx->pa = frag_pa;
525 dx->is_mapped = 1U;
526 }
527
528 dx->is_eop = 1U;
529 dx->skb = skb;
530
531 return ret;
532}
533
534static unsigned int aq_nic_map_skb_lso(struct aq_nic_s *self,
535 struct sk_buff *skb,
536 struct aq_ring_buff_s *dx)
537{
538 dx->flags = 0U;
539 dx->len_pkt = skb->len;
540 dx->len_l2 = ETH_HLEN;
541 dx->len_l3 = ip_hdrlen(skb);
542 dx->len_l4 = tcp_hdrlen(skb);
543 dx->mss = skb_shinfo(skb)->gso_size;
544 dx->is_txc = 1U;
545 return 1U;
546}
547
548static unsigned int aq_nic_map_skb(struct aq_nic_s *self, struct sk_buff *skb,
549 struct aq_ring_buff_s *dx)
550{
551 unsigned int ret = 0U;
552
553 if (unlikely(skb_is_gso(skb))) {
554 ret = aq_nic_map_skb_lso(self, skb, dx);
555 ++dx;
556 }
557
558 ret += aq_nic_map_skb_frag(self, skb, dx);
559
560 return ret;
561}
562
563int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
564__releases(&ring->lock)
565__acquires(&ring->lock)
566{
567 struct aq_ring_s *ring = NULL;
568 unsigned int frags = 0U;
569 unsigned int vec = skb->queue_mapping % self->aq_nic_cfg.vecs;
570 unsigned int tc = 0U;
571 unsigned int trys = AQ_CFG_LOCK_TRYS;
b350d7b8 572 int err = NETDEV_TX_OK;
97bde5c4 573 bool is_nic_in_bad_state;
97bde5c4
DV		 574 struct aq_ring_buff_s buffers[AQ_CFG_SKB_FRAGS_MAX];
575
576 frags = skb_shinfo(skb)->nr_frags + 1;
577
578 ring = self->aq_ring_tx[AQ_NIC_TCVEC2RING(self, tc, vec)];
579
97bde5c4
DV		 580 if (frags > AQ_CFG_SKB_FRAGS_MAX) {
581 dev_kfree_skb_any(skb);
582 goto err_exit;
583 }
584
585 is_nic_in_bad_state = aq_utils_obj_test(&self->header.flags,
586 AQ_NIC_FLAGS_IS_NOT_TX_READY) ||
587 (aq_ring_avail_dx(ring) <
588 AQ_CFG_SKB_FRAGS_MAX);
589
590 if (is_nic_in_bad_state) {
591 aq_nic_ndev_queue_stop(self, ring->idx);
592 err = NETDEV_TX_BUSY;
593 goto err_exit;
594 }
595
596 do {
597 if (spin_trylock(&ring->header.lock)) {
598 frags = aq_nic_map_skb(self, skb, &buffers[0]);
599
600 aq_ring_tx_append_buffs(ring, &buffers[0], frags);
601
602 err = self->aq_hw_ops.hw_ring_tx_xmit(self->aq_hw,
603 ring, frags);
604 if (err >= 0) {
605 if (aq_ring_avail_dx(ring) <
606 AQ_CFG_SKB_FRAGS_MAX + 1)
607 aq_nic_ndev_queue_stop(self, ring->idx);
608 }
609 spin_unlock(&ring->header.lock);
610
611 if (err >= 0) {
612 ++ring->stats.tx.packets;
613 ring->stats.tx.bytes += skb->len;
614 }
615 break;
616 }
617 } while (--trys);
618
619 if (!trys) {
620 err = NETDEV_TX_BUSY;
621 goto err_exit;
622 }
623
624err_exit:
97bde5c4
DV		 625 return err;
626}
627
628int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags)
629{
630 int err = 0;
631
632 err = self->aq_hw_ops.hw_packet_filter_set(self->aq_hw, flags);
633 if (err < 0)
634 goto err_exit;
635
636 self->packet_filter = flags;
637
638err_exit:
639 return err;
640}
641
642int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev)
643{
644 struct netdev_hw_addr *ha = NULL;
645 unsigned int i = 0U;
646
647 self->mc_list.count = 0U;
648
649 netdev_for_each_mc_addr(ha, ndev) {
650 ether_addr_copy(self->mc_list.ar[i++], ha->addr);
651 ++self->mc_list.count;
652 }
653
654 return self->aq_hw_ops.hw_multicast_list_set(self->aq_hw,
655 self->mc_list.ar,
656 self->mc_list.count);
657}
658
659int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu)
660{
661 int err = 0;
662
663 if (new_mtu > self->aq_hw_caps.mtu) {
664 err = -EINVAL;
665 goto err_exit;
666 }
667 self->aq_nic_cfg.mtu = new_mtu;
668
669err_exit:
670 return err;
671}
672
673int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev)
674{
675 return self->aq_hw_ops.hw_set_mac_address(self->aq_hw, ndev->dev_addr);
676}
677
678unsigned int aq_nic_get_link_speed(struct aq_nic_s *self)
679{
680 return self->link_status.mbps;
681}
682
683int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p)
684{
685 u32 *regs_buff = p;
686 int err = 0;
687
688 regs->version = 1;
689
690 err = self->aq_hw_ops.hw_get_regs(self->aq_hw,
691 &self->aq_hw_caps, regs_buff);
692 if (err < 0)
693 goto err_exit;
694
695err_exit:
696 return err;
697}
698
699int aq_nic_get_regs_count(struct aq_nic_s *self)
700{
701 return self->aq_hw_caps.mac_regs_count;
702}
703
704void aq_nic_get_stats(struct aq_nic_s *self, u64 *data)
705{
706 struct aq_vec_s *aq_vec = NULL;
707 unsigned int i = 0U;
708 unsigned int count = 0U;
709 int err = 0;
710
711 err = self->aq_hw_ops.hw_get_hw_stats(self->aq_hw, data, &count);
712 if (err < 0)
713 goto err_exit;
714
715 data += count;
716 count = 0U;
717
718 for (i = 0U, aq_vec = self->aq_vec[0];
719 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
720 data += count;
721 aq_vec_get_sw_stats(aq_vec, data, &count);
722 }
723
724err_exit:;
725 (void)err;
726}
727
f8244ab5
PR		 728void aq_nic_get_link_ksettings(struct aq_nic_s *self,
729 struct ethtool_link_ksettings *cmd)
97bde5c4 730{
f8244ab5 731 cmd->base.port = PORT_TP;
97bde5c4 732 /* This driver supports only 10G capable adapters, so DUPLEX_FULL */
f8244ab5
PR		 733 cmd->base.duplex = DUPLEX_FULL;
734 cmd->base.autoneg = self->aq_nic_cfg.is_autoneg;
735
8f9000a5
PB		 736 ethtool_link_ksettings_zero_link_mode(cmd, supported);
737
738 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_10G)
739 ethtool_link_ksettings_add_link_mode(cmd, supported,
740 10000baseT_Full);
741
742 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_5G)
743 ethtool_link_ksettings_add_link_mode(cmd, supported,
744 5000baseT_Full);
745
746 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_2GS)
747 ethtool_link_ksettings_add_link_mode(cmd, supported,
748 2500baseT_Full);
749
750 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_1G)
751 ethtool_link_ksettings_add_link_mode(cmd, supported,
752 1000baseT_Full);
753
754 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_100M)
755 ethtool_link_ksettings_add_link_mode(cmd, supported,
756 100baseT_Full);
757
758 if (self->aq_hw_caps.flow_control)
759 ethtool_link_ksettings_add_link_mode(cmd, supported,
760 Pause);
761
762 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
763 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
764
765 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
766
767 if (self->aq_nic_cfg.is_autoneg)
768 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
769
770 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10G)
771 ethtool_link_ksettings_add_link_mode(cmd, advertising,
772 10000baseT_Full);
773
774 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_5G)
775 ethtool_link_ksettings_add_link_mode(cmd, advertising,
776 5000baseT_Full);
777
778 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_2GS)
779 ethtool_link_ksettings_add_link_mode(cmd, advertising,
780 2500baseT_Full);
781
782 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_1G)
783 ethtool_link_ksettings_add_link_mode(cmd, advertising,
784 1000baseT_Full);
785
786 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_100M)
787 ethtool_link_ksettings_add_link_mode(cmd, advertising,
788 100baseT_Full);
789
790 if (self->aq_nic_cfg.flow_control)
791 ethtool_link_ksettings_add_link_mode(cmd, advertising,
792 Pause);
793
794 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
97bde5c4
DV		 795}
796
f8244ab5
PR		 797int aq_nic_set_link_ksettings(struct aq_nic_s *self,
798 const struct ethtool_link_ksettings *cmd)
97bde5c4
DV		 799{
800 u32 speed = 0U;
801 u32 rate = 0U;
802 int err = 0;
803
f8244ab5 804 if (cmd->base.autoneg == AUTONEG_ENABLE) {
97bde5c4
DV		 805 rate = self->aq_hw_caps.link_speed_msk;
806 self->aq_nic_cfg.is_autoneg = true;
807 } else {
f8244ab5 808 speed = cmd->base.speed;
97bde5c4
DV		 809
810 switch (speed) {
811 case SPEED_100:
812 rate = AQ_NIC_RATE_100M;
813 break;
814
815 case SPEED_1000:
816 rate = AQ_NIC_RATE_1G;
817 break;
818
819 case SPEED_2500:
820 rate = AQ_NIC_RATE_2GS;
821 break;
822
823 case SPEED_5000:
824 rate = AQ_NIC_RATE_5G;
825 break;
826
827 case SPEED_10000:
828 rate = AQ_NIC_RATE_10G;
829 break;
830
831 default:
832 err = -1;
833 goto err_exit;
834 break;
835 }
836 if (!(self->aq_hw_caps.link_speed_msk & rate)) {
837 err = -1;
838 goto err_exit;
839 }
840
841 self->aq_nic_cfg.is_autoneg = false;
842 }
843
844 err = self->aq_hw_ops.hw_set_link_speed(self->aq_hw, rate);
845 if (err < 0)
846 goto err_exit;
847
848 self->aq_nic_cfg.link_speed_msk = rate;
849
850err_exit:
851 return err;
852}
853
854struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self)
855{
856 return &self->aq_nic_cfg;
857}
858
859u32 aq_nic_get_fw_version(struct aq_nic_s *self)
860{
861 u32 fw_version = 0U;
862
863 self->aq_hw_ops.hw_get_fw_version(self->aq_hw, &fw_version);
864
865 return fw_version;
866}
867
868int aq_nic_stop(struct aq_nic_s *self)
869{
870 struct aq_vec_s *aq_vec = NULL;
871 unsigned int i = 0U;
872
873 for (i = 0U, aq_vec = self->aq_vec[0];
874 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
875 aq_nic_ndev_queue_stop(self, i);
876
877 del_timer_sync(&self->service_timer);
878
879 self->aq_hw_ops.hw_irq_disable(self->aq_hw, AQ_CFG_IRQ_MASK);
880
881 if (self->aq_nic_cfg.is_polling)
882 del_timer_sync(&self->polling_timer);
883 else
884 aq_pci_func_free_irqs(self->aq_pci_func);
885
886 for (i = 0U, aq_vec = self->aq_vec[0];
887 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
888 aq_vec_stop(aq_vec);
889
890 return self->aq_hw_ops.hw_stop(self->aq_hw);
891}
892
893void aq_nic_deinit(struct aq_nic_s *self)
894{
895 struct aq_vec_s *aq_vec = NULL;
896 unsigned int i = 0U;
897
898 if (!self)
899 goto err_exit;
900
901 for (i = 0U, aq_vec = self->aq_vec[0];
902 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
903 aq_vec_deinit(aq_vec);
904
905 if (self->power_state == AQ_HW_POWER_STATE_D0) {
906 (void)self->aq_hw_ops.hw_deinit(self->aq_hw);
907 } else {
908 (void)self->aq_hw_ops.hw_set_power(self->aq_hw,
909 self->power_state);
910 }
911
912err_exit:;
913}
914
915void aq_nic_free_hot_resources(struct aq_nic_s *self)
916{
917 unsigned int i = 0U;
918
919 if (!self)
920 goto err_exit;
921
922 for (i = AQ_DIMOF(self->aq_vec); i--;) {
923 if (self->aq_vec[i])
924 aq_vec_free(self->aq_vec[i]);
925 }
926
927err_exit:;
928}
929
930int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg)
931{
932 int err = 0;
933
934 if (!netif_running(self->ndev)) {
935 err = 0;
d5919aeb 936 goto out;
97bde5c4
DV		 937 }
938 rtnl_lock();
939 if (pm_msg->event & PM_EVENT_SLEEP || pm_msg->event & PM_EVENT_FREEZE) {
940 self->power_state = AQ_HW_POWER_STATE_D3;
941 netif_device_detach(self->ndev);
942 netif_tx_stop_all_queues(self->ndev);
943
944 err = aq_nic_stop(self);
945 if (err < 0)
946 goto err_exit;
947
948 aq_nic_deinit(self);
949 } else {
950 err = aq_nic_init(self);
951 if (err < 0)
952 goto err_exit;
953
954 err = aq_nic_start(self);
955 if (err < 0)
956 goto err_exit;
957
958 netif_device_attach(self->ndev);
959 netif_tx_start_all_queues(self->ndev);
960 }
97bde5c4
DV		 961
962err_exit:
d5919aeb
PB		 963 rtnl_unlock();
964out:
97bde5c4
DV		 965 return err;
966}
Linux 6.x block layer and io_uring tree(s)