]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blob - drivers/net/ethernet/aquantia/atlantic/aq_nic.c
projects / mirror_ubuntu-hirsute-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge remote-tracking branches 'spi/fix/armada', 'spi/fix/atmel', 'spi/fix/doc',...
[mirror_ubuntu-hirsute-kernel.git] / drivers / net / ethernet / aquantia / atlantic / aq_nic.c
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/moduleparam.h>
20 #include <linux/netdevice.h>
21 #include <linux/etherdevice.h>
22 #include <linux/timer.h>
23 #include <linux/cpu.h>
24 #include <linux/ip.h>
25 #include <linux/tcp.h>
26 #include <net/ip.h>
27
28 static unsigned int aq_itr = AQ_CFG_INTERRUPT_MODERATION_AUTO;
29 module_param_named(aq_itr, aq_itr, uint, 0644);
30 MODULE_PARM_DESC(aq_itr, "Interrupt throttling mode");
31
32 static unsigned int aq_itr_tx;
33 module_param_named(aq_itr_tx, aq_itr_tx, uint, 0644);
34 MODULE_PARM_DESC(aq_itr_tx, "TX interrupt throttle rate");
35
36 static unsigned int aq_itr_rx;
37 module_param_named(aq_itr_rx, aq_itr_rx, uint, 0644);
38 MODULE_PARM_DESC(aq_itr_rx, "RX interrupt throttle rate");
39
40 static void aq_nic_update_ndev_stats(struct aq_nic_s *self);
41
42 static void aq_nic_rss_init(struct aq_nic_s *self, unsigned int num_rss_queues)
43 {
44 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
45 struct aq_rss_parameters *rss_params = &cfg->aq_rss;
46 int i = 0;
47
48 static u8 rss_key[40] = {
49 0x1e, 0xad, 0x71, 0x87, 0x65, 0xfc, 0x26, 0x7d,
50 0x0d, 0x45, 0x67, 0x74, 0xcd, 0x06, 0x1a, 0x18,
51 0xb6, 0xc1, 0xf0, 0xc7, 0xbb, 0x18, 0xbe, 0xf8,
52 0x19, 0x13, 0x4b, 0xa9, 0xd0, 0x3e, 0xfe, 0x70,
53 0x25, 0x03, 0xab, 0x50, 0x6a, 0x8b, 0x82, 0x0c
54 };
55
56 rss_params->hash_secret_key_size = sizeof(rss_key);
57 memcpy(rss_params->hash_secret_key, rss_key, sizeof(rss_key));
58 rss_params->indirection_table_size = AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
59
60 for (i = rss_params->indirection_table_size; i--;)
61 rss_params->indirection_table[i] = i & (num_rss_queues - 1);
62 }
63
64 /* Fills aq_nic_cfg with valid defaults */
65 static void aq_nic_cfg_init_defaults(struct aq_nic_s *self)
66 {
67 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
68
69 cfg->aq_hw_caps = &self->aq_hw_caps;
70
71 cfg->vecs = AQ_CFG_VECS_DEF;
72 cfg->tcs = AQ_CFG_TCS_DEF;
73
74 cfg->rxds = AQ_CFG_RXDS_DEF;
75 cfg->txds = AQ_CFG_TXDS_DEF;
76
77 cfg->is_polling = AQ_CFG_IS_POLLING_DEF;
78
79 cfg->itr = aq_itr;
80 cfg->tx_itr = aq_itr_tx;
81 cfg->rx_itr = aq_itr_rx;
82
83 cfg->is_rss = AQ_CFG_IS_RSS_DEF;
84 cfg->num_rss_queues = AQ_CFG_NUM_RSS_QUEUES_DEF;
85 cfg->aq_rss.base_cpu_number = AQ_CFG_RSS_BASE_CPU_NUM_DEF;
86 cfg->flow_control = AQ_CFG_FC_MODE;
87
88 cfg->mtu = AQ_CFG_MTU_DEF;
89 cfg->link_speed_msk = AQ_CFG_SPEED_MSK;
90 cfg->is_autoneg = AQ_CFG_IS_AUTONEG_DEF;
91
92 cfg->is_lro = AQ_CFG_IS_LRO_DEF;
93
94 cfg->vlan_id = 0U;
95
96 aq_nic_rss_init(self, cfg->num_rss_queues);
97 }
98
99 /* Checks hw_caps and 'corrects' aq_nic_cfg in runtime */
100 int aq_nic_cfg_start(struct aq_nic_s *self)
101 {
102 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
103
104 /*descriptors */
105 cfg->rxds = min(cfg->rxds, cfg->aq_hw_caps->rxds);
106 cfg->txds = min(cfg->txds, cfg->aq_hw_caps->txds);
107
108 /*rss rings */
109 cfg->vecs = min(cfg->vecs, cfg->aq_hw_caps->vecs);
110 cfg->vecs = min(cfg->vecs, num_online_cpus());
111 /* cfg->vecs should be power of 2 for RSS */
112 if (cfg->vecs >= 8U)
113 cfg->vecs = 8U;
114 else if (cfg->vecs >= 4U)
115 cfg->vecs = 4U;
116 else if (cfg->vecs >= 2U)
117 cfg->vecs = 2U;
118 else
119 cfg->vecs = 1U;
120
121 cfg->num_rss_queues = min(cfg->vecs, AQ_CFG_NUM_RSS_QUEUES_DEF);
122
123 cfg->irq_type = aq_pci_func_get_irq_type(self->aq_pci_func);
124
125 if ((cfg->irq_type == AQ_HW_IRQ_LEGACY) ||
126 (self->aq_hw_caps.vecs == 1U) ||
127 (cfg->vecs == 1U)) {
128 cfg->is_rss = 0U;
129 cfg->vecs = 1U;
130 }
131
132 cfg->link_speed_msk &= self->aq_hw_caps.link_speed_msk;
133 cfg->hw_features = self->aq_hw_caps.hw_features;
134 return 0;
135 }
136
137 static int aq_nic_update_link_status(struct aq_nic_s *self)
138 {
139 int err = self->aq_hw_ops.hw_get_link_status(self->aq_hw);
140
141 if (err)
142 return err;
143
144 if (self->link_status.mbps != self->aq_hw->aq_link_status.mbps) {
145 pr_info("%s: link change old %d new %d\n",
146 AQ_CFG_DRV_NAME, self->link_status.mbps,
147 self->aq_hw->aq_link_status.mbps);
148 aq_nic_update_interrupt_moderation_settings(self);
149 }
150
151 self->link_status = self->aq_hw->aq_link_status;
152 if (!netif_carrier_ok(self->ndev) && self->link_status.mbps) {
153 aq_utils_obj_set(&self->header.flags,
154 AQ_NIC_FLAG_STARTED);
155 aq_utils_obj_clear(&self->header.flags,
156 AQ_NIC_LINK_DOWN);
157 netif_carrier_on(self->ndev);
158 netif_tx_wake_all_queues(self->ndev);
159 }
160 if (netif_carrier_ok(self->ndev) && !self->link_status.mbps) {
161 netif_carrier_off(self->ndev);
162 netif_tx_disable(self->ndev);
163 aq_utils_obj_set(&self->header.flags, AQ_NIC_LINK_DOWN);
164 }
165 return 0;
166 }
167
168 static void aq_nic_service_timer_cb(struct timer_list *t)
169 {
170 struct aq_nic_s *self = from_timer(self, t, service_timer);
171 int ctimer = AQ_CFG_SERVICE_TIMER_INTERVAL;
172 int err = 0;
173
174 if (aq_utils_obj_test(&self->header.flags, AQ_NIC_FLAGS_IS_NOT_READY))
175 goto err_exit;
176
177 err = aq_nic_update_link_status(self);
178 if (err)
179 goto err_exit;
180
181 if (self->aq_hw_ops.hw_update_stats)
182 self->aq_hw_ops.hw_update_stats(self->aq_hw);
183
184 aq_nic_update_ndev_stats(self);
185
186 /* If no link - use faster timer rate to detect link up asap */
187 if (!netif_carrier_ok(self->ndev))
188 ctimer = max(ctimer / 2, 1);
189
190 err_exit:
191 mod_timer(&self->service_timer, jiffies + ctimer);
192 }
193
194 static void aq_nic_polling_timer_cb(struct timer_list *t)
195 {
196 struct aq_nic_s *self = from_timer(self, t, polling_timer);
197 struct aq_vec_s *aq_vec = NULL;
198 unsigned int i = 0U;
199
200 for (i = 0U, aq_vec = self->aq_vec[0];
201 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
202 aq_vec_isr(i, (void *)aq_vec);
203
204 mod_timer(&self->polling_timer, jiffies +
205 AQ_CFG_POLLING_TIMER_INTERVAL);
206 }
207
208 static struct net_device *aq_nic_ndev_alloc(void)
209 {
210 return alloc_etherdev_mq(sizeof(struct aq_nic_s), AQ_CFG_VECS_MAX);
211 }
212
213 struct aq_nic_s *aq_nic_alloc_cold(const struct net_device_ops *ndev_ops,
214 const struct ethtool_ops *et_ops,
215 struct pci_dev *pdev,
216 struct aq_pci_func_s *aq_pci_func,
217 unsigned int port,
218 const struct aq_hw_ops *aq_hw_ops)
219 {
220 struct net_device *ndev = NULL;
221 struct aq_nic_s *self = NULL;
222 int err = 0;
223
224 ndev = aq_nic_ndev_alloc();
225 if (!ndev) {
226 err = -ENOMEM;
227 goto err_exit;
228 }
229
230 self = netdev_priv(ndev);
231
232 ndev->netdev_ops = ndev_ops;
233 ndev->ethtool_ops = et_ops;
234
235 SET_NETDEV_DEV(ndev, &pdev->dev);
236
237 ndev->if_port = port;
238 self->ndev = ndev;
239
240 self->aq_pci_func = aq_pci_func;
241
242 self->aq_hw_ops = *aq_hw_ops;
243 self->port = (u8)port;
244
245 self->aq_hw = self->aq_hw_ops.create(aq_pci_func, self->port,
246 &self->aq_hw_ops);
247 err = self->aq_hw_ops.get_hw_caps(self->aq_hw, &self->aq_hw_caps,
248 pdev->device, pdev->subsystem_device);
249 if (err < 0)
250 goto err_exit;
251
252 aq_nic_cfg_init_defaults(self);
253
254 err_exit:
255 if (err < 0) {
256 aq_nic_free_hot_resources(self);
257 self = NULL;
258 }
259 return self;
260 }
261
262 int aq_nic_ndev_register(struct aq_nic_s *self)
263 {
264 int err = 0;
265
266 if (!self->ndev) {
267 err = -EINVAL;
268 goto err_exit;
269 }
270 err = self->aq_hw_ops.hw_get_mac_permanent(self->aq_hw,
271 self->aq_nic_cfg.aq_hw_caps,
272 self->ndev->dev_addr);
273 if (err < 0)
274 goto err_exit;
275
276 #if defined(AQ_CFG_MAC_ADDR_PERMANENT)
277 {
278 static u8 mac_addr_permanent[] = AQ_CFG_MAC_ADDR_PERMANENT;
279
280 ether_addr_copy(self->ndev->dev_addr, mac_addr_permanent);
281 }
282 #endif
283
284 netif_carrier_off(self->ndev);
285
286 netif_tx_disable(self->ndev);
287
288 err = register_netdev(self->ndev);
289 if (err < 0)
290 goto err_exit;
291
292 err_exit:
293 return err;
294 }
295
296 int aq_nic_ndev_init(struct aq_nic_s *self)
297 {
298 struct aq_hw_caps_s *aq_hw_caps = self->aq_nic_cfg.aq_hw_caps;
299 struct aq_nic_cfg_s *aq_nic_cfg = &self->aq_nic_cfg;
300
301 self->ndev->hw_features |= aq_hw_caps->hw_features;
302 self->ndev->features = aq_hw_caps->hw_features;
303 self->ndev->priv_flags = aq_hw_caps->hw_priv_flags;
304 self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN;
305 self->ndev->max_mtu = self->aq_hw_caps.mtu - ETH_FCS_LEN - ETH_HLEN;
306
307 return 0;
308 }
309
310 void aq_nic_ndev_free(struct aq_nic_s *self)
311 {
312 if (!self->ndev)
313 goto err_exit;
314
315 if (self->ndev->reg_state == NETREG_REGISTERED)
316 unregister_netdev(self->ndev);
317
318 if (self->aq_hw)
319 self->aq_hw_ops.destroy(self->aq_hw);
320
321 free_netdev(self->ndev);
322
323 err_exit:;
324 }
325
326 struct aq_nic_s *aq_nic_alloc_hot(struct net_device *ndev)
327 {
328 struct aq_nic_s *self = NULL;
329 int err = 0;
330
331 if (!ndev) {
332 err = -EINVAL;
333 goto err_exit;
334 }
335 self = netdev_priv(ndev);
336
337 if (!self) {
338 err = -EINVAL;
339 goto err_exit;
340 }
341 if (netif_running(ndev))
342 netif_tx_disable(ndev);
343 netif_carrier_off(self->ndev);
344
345 for (self->aq_vecs = 0; self->aq_vecs < self->aq_nic_cfg.vecs;
346 self->aq_vecs++) {
347 self->aq_vec[self->aq_vecs] =
348 aq_vec_alloc(self, self->aq_vecs, &self->aq_nic_cfg);
349 if (!self->aq_vec[self->aq_vecs]) {
350 err = -ENOMEM;
351 goto err_exit;
352 }
353 }
354
355 err_exit:
356 if (err < 0) {
357 aq_nic_free_hot_resources(self);
358 self = NULL;
359 }
360 return self;
361 }
362
363 void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx,
364 struct aq_ring_s *ring)
365 {
366 self->aq_ring_tx[idx] = ring;
367 }
368
369 struct device *aq_nic_get_dev(struct aq_nic_s *self)
370 {
371 return self->ndev->dev.parent;
372 }
373
374 struct net_device *aq_nic_get_ndev(struct aq_nic_s *self)
375 {
376 return self->ndev;
377 }
378
379 int aq_nic_init(struct aq_nic_s *self)
380 {
381 struct aq_vec_s *aq_vec = NULL;
382 int err = 0;
383 unsigned int i = 0U;
384
385 self->power_state = AQ_HW_POWER_STATE_D0;
386 err = self->aq_hw_ops.hw_reset(self->aq_hw);
387 if (err < 0)
388 goto err_exit;
389
390 err = self->aq_hw_ops.hw_init(self->aq_hw, &self->aq_nic_cfg,
391 aq_nic_get_ndev(self)->dev_addr);
392 if (err < 0)
393 goto err_exit;
394
395 for (i = 0U, aq_vec = self->aq_vec[0];
396 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
397 aq_vec_init(aq_vec, &self->aq_hw_ops, self->aq_hw);
398
399 err_exit:
400 return err;
401 }
402
403 int aq_nic_start(struct aq_nic_s *self)
404 {
405 struct aq_vec_s *aq_vec = NULL;
406 int err = 0;
407 unsigned int i = 0U;
408
409 err = self->aq_hw_ops.hw_multicast_list_set(self->aq_hw,
410 self->mc_list.ar,
411 self->mc_list.count);
412 if (err < 0)
413 goto err_exit;
414
415 err = self->aq_hw_ops.hw_packet_filter_set(self->aq_hw,
416 self->packet_filter);
417 if (err < 0)
418 goto err_exit;
419
420 for (i = 0U, aq_vec = self->aq_vec[0];
421 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
422 err = aq_vec_start(aq_vec);
423 if (err < 0)
424 goto err_exit;
425 }
426
427 err = self->aq_hw_ops.hw_start(self->aq_hw);
428 if (err < 0)
429 goto err_exit;
430
431 err = aq_nic_update_interrupt_moderation_settings(self);
432 if (err)
433 goto err_exit;
434 timer_setup(&self->service_timer, aq_nic_service_timer_cb, 0);
435 mod_timer(&self->service_timer, jiffies +
436 AQ_CFG_SERVICE_TIMER_INTERVAL);
437
438 if (self->aq_nic_cfg.is_polling) {
439 timer_setup(&self->polling_timer, aq_nic_polling_timer_cb, 0);
440 mod_timer(&self->polling_timer, jiffies +
441 AQ_CFG_POLLING_TIMER_INTERVAL);
442 } else {
443 for (i = 0U, aq_vec = self->aq_vec[0];
444 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
445 err = aq_pci_func_alloc_irq(self->aq_pci_func, i,
446 self->ndev->name, aq_vec,
447 aq_vec_get_affinity_mask(aq_vec));
448 if (err < 0)
449 goto err_exit;
450 }
451
452 err = self->aq_hw_ops.hw_irq_enable(self->aq_hw,
453 AQ_CFG_IRQ_MASK);
454 if (err < 0)
455 goto err_exit;
456 }
457
458 err = netif_set_real_num_tx_queues(self->ndev, self->aq_vecs);
459 if (err < 0)
460 goto err_exit;
461
462 err = netif_set_real_num_rx_queues(self->ndev, self->aq_vecs);
463 if (err < 0)
464 goto err_exit;
465
466 netif_tx_start_all_queues(self->ndev);
467
468 err_exit:
469 return err;
470 }
471
472 static unsigned int aq_nic_map_skb(struct aq_nic_s *self,
473 struct sk_buff *skb,
474 struct aq_ring_s *ring)
475 {
476 unsigned int ret = 0U;
477 unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
478 unsigned int frag_count = 0U;
479 unsigned int dx = ring->sw_tail;
480 struct aq_ring_buff_s *first = NULL;
481 struct aq_ring_buff_s *dx_buff = &ring->buff_ring[dx];
482
483 if (unlikely(skb_is_gso(skb))) {
484 dx_buff->flags = 0U;
485 dx_buff->len_pkt = skb->len;
486 dx_buff->len_l2 = ETH_HLEN;
487 dx_buff->len_l3 = ip_hdrlen(skb);
488 dx_buff->len_l4 = tcp_hdrlen(skb);
489 dx_buff->mss = skb_shinfo(skb)->gso_size;
490 dx_buff->is_txc = 1U;
491 dx_buff->eop_index = 0xffffU;
492
493 dx_buff->is_ipv6 =
494 (ip_hdr(skb)->version == 6) ? 1U : 0U;
495
496 dx = aq_ring_next_dx(ring, dx);
497 dx_buff = &ring->buff_ring[dx];
498 ++ret;
499 }
500
501 dx_buff->flags = 0U;
502 dx_buff->len = skb_headlen(skb);
503 dx_buff->pa = dma_map_single(aq_nic_get_dev(self),
504 skb->data,
505 dx_buff->len,
506 DMA_TO_DEVICE);
507
508 if (unlikely(dma_mapping_error(aq_nic_get_dev(self), dx_buff->pa)))
509 goto exit;
510
511 first = dx_buff;
512 dx_buff->len_pkt = skb->len;
513 dx_buff->is_sop = 1U;
514 dx_buff->is_mapped = 1U;
515 ++ret;
516
517 if (skb->ip_summed == CHECKSUM_PARTIAL) {
518 dx_buff->is_ip_cso = (htons(ETH_P_IP) == skb->protocol) ?
519 1U : 0U;
520
521 if (ip_hdr(skb)->version == 4) {
522 dx_buff->is_tcp_cso =
523 (ip_hdr(skb)->protocol == IPPROTO_TCP) ?
524 1U : 0U;
525 dx_buff->is_udp_cso =
526 (ip_hdr(skb)->protocol == IPPROTO_UDP) ?
527 1U : 0U;
528 } else if (ip_hdr(skb)->version == 6) {
529 dx_buff->is_tcp_cso =
530 (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP) ?
531 1U : 0U;
532 dx_buff->is_udp_cso =
533 (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP) ?
534 1U : 0U;
535 }
536 }
537
538 for (; nr_frags--; ++frag_count) {
539 unsigned int frag_len = 0U;
540 unsigned int buff_offset = 0U;
541 unsigned int buff_size = 0U;
542 dma_addr_t frag_pa;
543 skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count];
544
545 frag_len = skb_frag_size(frag);
546
547 while (frag_len) {
548 if (frag_len > AQ_CFG_TX_FRAME_MAX)
549 buff_size = AQ_CFG_TX_FRAME_MAX;
550 else
551 buff_size = frag_len;
552
553 frag_pa = skb_frag_dma_map(aq_nic_get_dev(self),
554 frag,
555 buff_offset,
556 buff_size,
557 DMA_TO_DEVICE);
558
559 if (unlikely(dma_mapping_error(aq_nic_get_dev(self),
560 frag_pa)))
561 goto mapping_error;
562
563 dx = aq_ring_next_dx(ring, dx);
564 dx_buff = &ring->buff_ring[dx];
565
566 dx_buff->flags = 0U;
567 dx_buff->len = buff_size;
568 dx_buff->pa = frag_pa;
569 dx_buff->is_mapped = 1U;
570 dx_buff->eop_index = 0xffffU;
571
572 frag_len -= buff_size;
573 buff_offset += buff_size;
574
575 ++ret;
576 }
577 }
578
579 first->eop_index = dx;
580 dx_buff->is_eop = 1U;
581 dx_buff->skb = skb;
582 goto exit;
583
584 mapping_error:
585 for (dx = ring->sw_tail;
586 ret > 0;
587 --ret, dx = aq_ring_next_dx(ring, dx)) {
588 dx_buff = &ring->buff_ring[dx];
589
590 if (!dx_buff->is_txc && dx_buff->pa) {
591 if (unlikely(dx_buff->is_sop)) {
592 dma_unmap_single(aq_nic_get_dev(self),
593 dx_buff->pa,
594 dx_buff->len,
595 DMA_TO_DEVICE);
596 } else {
597 dma_unmap_page(aq_nic_get_dev(self),
598 dx_buff->pa,
599 dx_buff->len,
600 DMA_TO_DEVICE);
601 }
602 }
603 }
604
605 exit:
606 return ret;
607 }
608
609 int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
610 {
611 struct aq_ring_s *ring = NULL;
612 unsigned int frags = 0U;
613 unsigned int vec = skb->queue_mapping % self->aq_nic_cfg.vecs;
614 unsigned int tc = 0U;
615 int err = NETDEV_TX_OK;
616
617 frags = skb_shinfo(skb)->nr_frags + 1;
618
619 ring = self->aq_ring_tx[AQ_NIC_TCVEC2RING(self, tc, vec)];
620
621 if (frags > AQ_CFG_SKB_FRAGS_MAX) {
622 dev_kfree_skb_any(skb);
623 goto err_exit;
624 }
625
626 aq_ring_update_queue_state(ring);
627
628 /* Above status update may stop the queue. Check this. */
629 if (__netif_subqueue_stopped(self->ndev, ring->idx)) {
630 err = NETDEV_TX_BUSY;
631 goto err_exit;
632 }
633
634 frags = aq_nic_map_skb(self, skb, ring);
635
636 if (likely(frags)) {
637 err = self->aq_hw_ops.hw_ring_tx_xmit(self->aq_hw,
638 ring,
639 frags);
640 if (err >= 0) {
641 ++ring->stats.tx.packets;
642 ring->stats.tx.bytes += skb->len;
643 }
644 } else {
645 err = NETDEV_TX_BUSY;
646 }
647
648 err_exit:
649 return err;
650 }
651
652 int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self)
653 {
654 return self->aq_hw_ops.hw_interrupt_moderation_set(self->aq_hw);
655 }
656
657 int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags)
658 {
659 int err = 0;
660
661 err = self->aq_hw_ops.hw_packet_filter_set(self->aq_hw, flags);
662 if (err < 0)
663 goto err_exit;
664
665 self->packet_filter = flags;
666
667 err_exit:
668 return err;
669 }
670
671 int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev)
672 {
673 struct netdev_hw_addr *ha = NULL;
674 unsigned int i = 0U;
675
676 self->mc_list.count = 0U;
677
678 netdev_for_each_mc_addr(ha, ndev) {
679 ether_addr_copy(self->mc_list.ar[i++], ha->addr);
680 ++self->mc_list.count;
681
682 if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX)
683 break;
684 }
685
686 if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX) {
687 /* Number of filters is too big: atlantic does not support this.
688 * Force all multi filter to support this.
689 * With this we disable all UC filters and setup "all pass"
690 * multicast mask
691 */
692 self->packet_filter |= IFF_ALLMULTI;
693 self->aq_hw->aq_nic_cfg->mc_list_count = 0;
694 return self->aq_hw_ops.hw_packet_filter_set(self->aq_hw,
695 self->packet_filter);
696 } else {
697 return self->aq_hw_ops.hw_multicast_list_set(self->aq_hw,
698 self->mc_list.ar,
699 self->mc_list.count);
700 }
701 }
702
703 int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu)
704 {
705 self->aq_nic_cfg.mtu = new_mtu;
706
707 return 0;
708 }
709
710 int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev)
711 {
712 return self->aq_hw_ops.hw_set_mac_address(self->aq_hw, ndev->dev_addr);
713 }
714
715 unsigned int aq_nic_get_link_speed(struct aq_nic_s *self)
716 {
717 return self->link_status.mbps;
718 }
719
720 int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p)
721 {
722 u32 *regs_buff = p;
723 int err = 0;
724
725 regs->version = 1;
726
727 err = self->aq_hw_ops.hw_get_regs(self->aq_hw,
728 &self->aq_hw_caps, regs_buff);
729 if (err < 0)
730 goto err_exit;
731
732 err_exit:
733 return err;
734 }
735
736 int aq_nic_get_regs_count(struct aq_nic_s *self)
737 {
738 return self->aq_hw_caps.mac_regs_count;
739 }
740
741 void aq_nic_get_stats(struct aq_nic_s *self, u64 *data)
742 {
743 unsigned int i = 0U;
744 unsigned int count = 0U;
745 struct aq_vec_s *aq_vec = NULL;
746 struct aq_stats_s *stats = self->aq_hw_ops.hw_get_hw_stats(self->aq_hw);
747
748 if (!stats)
749 goto err_exit;
750
751 data[i] = stats->uprc + stats->mprc + stats->bprc;
752 data[++i] = stats->uprc;
753 data[++i] = stats->mprc;
754 data[++i] = stats->bprc;
755 data[++i] = stats->erpt;
756 data[++i] = stats->uptc + stats->mptc + stats->bptc;
757 data[++i] = stats->uptc;
758 data[++i] = stats->mptc;
759 data[++i] = stats->bptc;
760 data[++i] = stats->ubrc;
761 data[++i] = stats->ubtc;
762 data[++i] = stats->mbrc;
763 data[++i] = stats->mbtc;
764 data[++i] = stats->bbrc;
765 data[++i] = stats->bbtc;
766 data[++i] = stats->ubrc + stats->mbrc + stats->bbrc;
767 data[++i] = stats->ubtc + stats->mbtc + stats->bbtc;
768 data[++i] = stats->dma_pkt_rc;
769 data[++i] = stats->dma_pkt_tc;
770 data[++i] = stats->dma_oct_rc;
771 data[++i] = stats->dma_oct_tc;
772 data[++i] = stats->dpc;
773
774 i++;
775
776 data += i;
777 count = 0U;
778
779 for (i = 0U, aq_vec = self->aq_vec[0];
780 aq_vec && self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
781 data += count;
782 aq_vec_get_sw_stats(aq_vec, data, &count);
783 }
784
785 err_exit:;
786 }
787
788 static void aq_nic_update_ndev_stats(struct aq_nic_s *self)
789 {
790 struct net_device *ndev = self->ndev;
791 struct aq_stats_s *stats = self->aq_hw_ops.hw_get_hw_stats(self->aq_hw);
792
793 ndev->stats.rx_packets = stats->uprc + stats->mprc + stats->bprc;
794 ndev->stats.rx_bytes = stats->ubrc + stats->mbrc + stats->bbrc;
795 ndev->stats.rx_errors = stats->erpr;
796 ndev->stats.tx_packets = stats->uptc + stats->mptc + stats->bptc;
797 ndev->stats.tx_bytes = stats->ubtc + stats->mbtc + stats->bbtc;
798 ndev->stats.tx_errors = stats->erpt;
799 ndev->stats.multicast = stats->mprc;
800 }
801
802 void aq_nic_get_link_ksettings(struct aq_nic_s *self,
803 struct ethtool_link_ksettings *cmd)
804 {
805 cmd->base.port = PORT_TP;
806 /* This driver supports only 10G capable adapters, so DUPLEX_FULL */
807 cmd->base.duplex = DUPLEX_FULL;
808 cmd->base.autoneg = self->aq_nic_cfg.is_autoneg;
809
810 ethtool_link_ksettings_zero_link_mode(cmd, supported);
811
812 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_10G)
813 ethtool_link_ksettings_add_link_mode(cmd, supported,
814 10000baseT_Full);
815
816 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_5G)
817 ethtool_link_ksettings_add_link_mode(cmd, supported,
818 5000baseT_Full);
819
820 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_2GS)
821 ethtool_link_ksettings_add_link_mode(cmd, supported,
822 2500baseT_Full);
823
824 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_1G)
825 ethtool_link_ksettings_add_link_mode(cmd, supported,
826 1000baseT_Full);
827
828 if (self->aq_hw_caps.link_speed_msk & AQ_NIC_RATE_100M)
829 ethtool_link_ksettings_add_link_mode(cmd, supported,
830 100baseT_Full);
831
832 if (self->aq_hw_caps.flow_control)
833 ethtool_link_ksettings_add_link_mode(cmd, supported,
834 Pause);
835
836 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
837 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
838
839 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
840
841 if (self->aq_nic_cfg.is_autoneg)
842 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
843
844 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10G)
845 ethtool_link_ksettings_add_link_mode(cmd, advertising,
846 10000baseT_Full);
847
848 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_5G)
849 ethtool_link_ksettings_add_link_mode(cmd, advertising,
850 5000baseT_Full);
851
852 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_2GS)
853 ethtool_link_ksettings_add_link_mode(cmd, advertising,
854 2500baseT_Full);
855
856 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_1G)
857 ethtool_link_ksettings_add_link_mode(cmd, advertising,
858 1000baseT_Full);
859
860 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_100M)
861 ethtool_link_ksettings_add_link_mode(cmd, advertising,
862 100baseT_Full);
863
864 if (self->aq_nic_cfg.flow_control)
865 ethtool_link_ksettings_add_link_mode(cmd, advertising,
866 Pause);
867
868 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
869 }
870
871 int aq_nic_set_link_ksettings(struct aq_nic_s *self,
872 const struct ethtool_link_ksettings *cmd)
873 {
874 u32 speed = 0U;
875 u32 rate = 0U;
876 int err = 0;
877
878 if (cmd->base.autoneg == AUTONEG_ENABLE) {
879 rate = self->aq_hw_caps.link_speed_msk;
880 self->aq_nic_cfg.is_autoneg = true;
881 } else {
882 speed = cmd->base.speed;
883
884 switch (speed) {
885 case SPEED_100:
886 rate = AQ_NIC_RATE_100M;
887 break;
888
889 case SPEED_1000:
890 rate = AQ_NIC_RATE_1G;
891 break;
892
893 case SPEED_2500:
894 rate = AQ_NIC_RATE_2GS;
895 break;
896
897 case SPEED_5000:
898 rate = AQ_NIC_RATE_5G;
899 break;
900
901 case SPEED_10000:
902 rate = AQ_NIC_RATE_10G;
903 break;
904
905 default:
906 err = -1;
907 goto err_exit;
908 break;
909 }
910 if (!(self->aq_hw_caps.link_speed_msk & rate)) {
911 err = -1;
912 goto err_exit;
913 }
914
915 self->aq_nic_cfg.is_autoneg = false;
916 }
917
918 err = self->aq_hw_ops.hw_set_link_speed(self->aq_hw, rate);
919 if (err < 0)
920 goto err_exit;
921
922 self->aq_nic_cfg.link_speed_msk = rate;
923
924 err_exit:
925 return err;
926 }
927
928 struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self)
929 {
930 return &self->aq_nic_cfg;
931 }
932
933 u32 aq_nic_get_fw_version(struct aq_nic_s *self)
934 {
935 u32 fw_version = 0U;
936
937 self->aq_hw_ops.hw_get_fw_version(self->aq_hw, &fw_version);
938
939 return fw_version;
940 }
941
942 int aq_nic_stop(struct aq_nic_s *self)
943 {
944 struct aq_vec_s *aq_vec = NULL;
945 unsigned int i = 0U;
946
947 netif_tx_disable(self->ndev);
948 netif_carrier_off(self->ndev);
949
950 del_timer_sync(&self->service_timer);
951
952 self->aq_hw_ops.hw_irq_disable(self->aq_hw, AQ_CFG_IRQ_MASK);
953
954 if (self->aq_nic_cfg.is_polling)
955 del_timer_sync(&self->polling_timer);
956 else
957 aq_pci_func_free_irqs(self->aq_pci_func);
958
959 for (i = 0U, aq_vec = self->aq_vec[0];
960 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
961 aq_vec_stop(aq_vec);
962
963 return self->aq_hw_ops.hw_stop(self->aq_hw);
964 }
965
966 void aq_nic_deinit(struct aq_nic_s *self)
967 {
968 struct aq_vec_s *aq_vec = NULL;
969 unsigned int i = 0U;
970
971 if (!self)
972 goto err_exit;
973
974 for (i = 0U, aq_vec = self->aq_vec[0];
975 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
976 aq_vec_deinit(aq_vec);
977
978 if (self->power_state == AQ_HW_POWER_STATE_D0) {
979 (void)self->aq_hw_ops.hw_deinit(self->aq_hw);
980 } else {
981 (void)self->aq_hw_ops.hw_set_power(self->aq_hw,
982 self->power_state);
983 }
984
985 err_exit:;
986 }
987
988 void aq_nic_free_hot_resources(struct aq_nic_s *self)
989 {
990 unsigned int i = 0U;
991
992 if (!self)
993 goto err_exit;
994
995 for (i = AQ_DIMOF(self->aq_vec); i--;) {
996 if (self->aq_vec[i]) {
997 aq_vec_free(self->aq_vec[i]);
998 self->aq_vec[i] = NULL;
999 }
1000 }
1001
1002 err_exit:;
1003 }
1004
1005 int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg)
1006 {
1007 int err = 0;
1008
1009 if (!netif_running(self->ndev)) {
1010 err = 0;
1011 goto out;
1012 }
1013 rtnl_lock();
1014 if (pm_msg->event & PM_EVENT_SLEEP || pm_msg->event & PM_EVENT_FREEZE) {
1015 self->power_state = AQ_HW_POWER_STATE_D3;
1016 netif_device_detach(self->ndev);
1017 netif_tx_stop_all_queues(self->ndev);
1018
1019 err = aq_nic_stop(self);
1020 if (err < 0)
1021 goto err_exit;
1022
1023 aq_nic_deinit(self);
1024 } else {
1025 err = aq_nic_init(self);
1026 if (err < 0)
1027 goto err_exit;
1028
1029 err = aq_nic_start(self);
1030 if (err < 0)
1031 goto err_exit;
1032
1033 netif_device_attach(self->ndev);
1034 netif_tx_start_all_queues(self->ndev);
1035 }
1036
1037 err_exit:
1038 rtnl_unlock();
1039 out:
1040 return err;
1041 }
Ubuntu Hirsute Linux kernel mirror