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Merge tag 'amlogic-dt-2' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman...
[linux-2.6-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"
97bde5c4 17
b82ee71a 18#include <linux/moduleparam.h>
97bde5c4
DV		 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
b82ee71a
IR		 27static unsigned int aq_itr = AQ_CFG_INTERRUPT_MODERATION_AUTO;
28module_param_named(aq_itr, aq_itr, uint, 0644);
29MODULE_PARM_DESC(aq_itr, "Interrupt throttling mode");
30
31static unsigned int aq_itr_tx;
32module_param_named(aq_itr_tx, aq_itr_tx, uint, 0644);
33MODULE_PARM_DESC(aq_itr_tx, "TX interrupt throttle rate");
34
35static unsigned int aq_itr_rx;
36module_param_named(aq_itr_rx, aq_itr_rx, uint, 0644);
37MODULE_PARM_DESC(aq_itr_rx, "RX interrupt throttle rate");
38
9f8a2203
IR		 39static void aq_nic_update_ndev_stats(struct aq_nic_s *self);
40
97bde5c4
DV		 41static void aq_nic_rss_init(struct aq_nic_s *self, unsigned int num_rss_queues)
42{
43 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
44 struct aq_rss_parameters *rss_params = &cfg->aq_rss;
45 int i = 0;
46
47 static u8 rss_key[40] = {
48 0x1e, 0xad, 0x71, 0x87, 0x65, 0xfc, 0x26, 0x7d,
49 0x0d, 0x45, 0x67, 0x74, 0xcd, 0x06, 0x1a, 0x18,
50 0xb6, 0xc1, 0xf0, 0xc7, 0xbb, 0x18, 0xbe, 0xf8,
51 0x19, 0x13, 0x4b, 0xa9, 0xd0, 0x3e, 0xfe, 0x70,
52 0x25, 0x03, 0xab, 0x50, 0x6a, 0x8b, 0x82, 0x0c
53 };
54
55 rss_params->hash_secret_key_size = sizeof(rss_key);
56 memcpy(rss_params->hash_secret_key, rss_key, sizeof(rss_key));
57 rss_params->indirection_table_size = AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
58
59 for (i = rss_params->indirection_table_size; i--;)
60 rss_params->indirection_table[i] = i & (num_rss_queues - 1);
61}
62
23ee07ad
IR		 63/* Checks hw_caps and 'corrects' aq_nic_cfg in runtime */
64void aq_nic_cfg_start(struct aq_nic_s *self)
97bde5c4
DV		 65{
66 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
67
97bde5c4
DV		 68 cfg->tcs = AQ_CFG_TCS_DEF;
69
97bde5c4
DV		 70 cfg->is_polling = AQ_CFG_IS_POLLING_DEF;
71
b82ee71a
IR		 72 cfg->itr = aq_itr;
73 cfg->tx_itr = aq_itr_tx;
74 cfg->rx_itr = aq_itr_rx;
97bde5c4
DV		 75
76 cfg->is_rss = AQ_CFG_IS_RSS_DEF;
77 cfg->num_rss_queues = AQ_CFG_NUM_RSS_QUEUES_DEF;
78 cfg->aq_rss.base_cpu_number = AQ_CFG_RSS_BASE_CPU_NUM_DEF;
79 cfg->flow_control = AQ_CFG_FC_MODE;
80
81 cfg->mtu = AQ_CFG_MTU_DEF;
82 cfg->link_speed_msk = AQ_CFG_SPEED_MSK;
83 cfg->is_autoneg = AQ_CFG_IS_AUTONEG_DEF;
84
85 cfg->is_lro = AQ_CFG_IS_LRO_DEF;
86
87 cfg->vlan_id = 0U;
88
89 aq_nic_rss_init(self, cfg->num_rss_queues);
97bde5c4
DV		 90
91 /*descriptors */
23ee07ad
IR		 92 cfg->rxds = min(cfg->aq_hw_caps->rxds, AQ_CFG_RXDS_DEF);
93 cfg->txds = min(cfg->aq_hw_caps->txds, AQ_CFG_TXDS_DEF);
97bde5c4
DV		 94
95 /*rss rings */
23ee07ad 96 cfg->vecs = min(cfg->aq_hw_caps->vecs, AQ_CFG_VECS_DEF);
97bde5c4 97 cfg->vecs = min(cfg->vecs, num_online_cpus());
a09bd81b 98 cfg->vecs = min(cfg->vecs, self->irqvecs);
97bde5c4
DV		 99 /* cfg->vecs should be power of 2 for RSS */
100 if (cfg->vecs >= 8U)
101 cfg->vecs = 8U;
102 else if (cfg->vecs >= 4U)
103 cfg->vecs = 4U;
104 else if (cfg->vecs >= 2U)
105 cfg->vecs = 2U;
106 else
107 cfg->vecs = 1U;
108
64fc7953
PB		 109 cfg->num_rss_queues = min(cfg->vecs, AQ_CFG_NUM_RSS_QUEUES_DEF);
110
23ee07ad 111 cfg->irq_type = aq_pci_func_get_irq_type(self);
97bde5c4
DV		 112
113 if ((cfg->irq_type == AQ_HW_IRQ_LEGACY) ||
8fcb98f4 114 (cfg->aq_hw_caps->vecs == 1U) ||
97bde5c4
DV		 115 (cfg->vecs == 1U)) {
116 cfg->is_rss = 0U;
117 cfg->vecs = 1U;
118 }
119
8fcb98f4
IR		 120 cfg->link_speed_msk &= cfg->aq_hw_caps->link_speed_msk;
121 cfg->hw_features = cfg->aq_hw_caps->hw_features;
97bde5c4
DV		 122}
123
3aec6412
IR		 124static int aq_nic_update_link_status(struct aq_nic_s *self)
125{
0c58c35f 126 int err = self->aq_fw_ops->update_link_status(self->aq_hw);
3aec6412
IR		 127
128 if (err)
129 return err;
130
b82ee71a 131 if (self->link_status.mbps != self->aq_hw->aq_link_status.mbps) {
3aec6412
IR		 132 pr_info("%s: link change old %d new %d\n",
133 AQ_CFG_DRV_NAME, self->link_status.mbps,
134 self->aq_hw->aq_link_status.mbps);
b82ee71a
IR		 135 aq_nic_update_interrupt_moderation_settings(self);
136 }
3aec6412
IR		 137
138 self->link_status = self->aq_hw->aq_link_status;
139 if (!netif_carrier_ok(self->ndev) && self->link_status.mbps) {
78f5193d 140 aq_utils_obj_set(&self->flags,
3aec6412 141 AQ_NIC_FLAG_STARTED);
78f5193d 142 aq_utils_obj_clear(&self->flags,
3aec6412
IR		 143 AQ_NIC_LINK_DOWN);
144 netif_carrier_on(self->ndev);
145 netif_tx_wake_all_queues(self->ndev);
146 }
147 if (netif_carrier_ok(self->ndev) && !self->link_status.mbps) {
148 netif_carrier_off(self->ndev);
149 netif_tx_disable(self->ndev);
78f5193d 150 aq_utils_obj_set(&self->flags, AQ_NIC_LINK_DOWN);
3aec6412
IR		 151 }
152 return 0;
153}
154
e99e88a9 155static void aq_nic_service_timer_cb(struct timer_list *t)
97bde5c4 156{
e99e88a9 157 struct aq_nic_s *self = from_timer(self, t, service_timer);
fdb4a083 158 int ctimer = AQ_CFG_SERVICE_TIMER_INTERVAL;
97bde5c4 159 int err = 0;
97bde5c4 160
78f5193d 161 if (aq_utils_obj_test(&self->flags, AQ_NIC_FLAGS_IS_NOT_READY))
97bde5c4
DV		 162 goto err_exit;
163
3aec6412
IR		 164 err = aq_nic_update_link_status(self);
165 if (err)
97bde5c4
DV		 166 goto err_exit;
167
0c58c35f
IR		 168 if (self->aq_fw_ops->update_stats)
169 self->aq_fw_ops->update_stats(self->aq_hw);
65e665e6 170
9f8a2203 171 aq_nic_update_ndev_stats(self);
97bde5c4 172
fdb4a083
IR		 173 /* If no link - use faster timer rate to detect link up asap */
174 if (!netif_carrier_ok(self->ndev))
175 ctimer = max(ctimer / 2, 1);
97bde5c4
DV		 176
177err_exit:
fdb4a083 178 mod_timer(&self->service_timer, jiffies + ctimer);
97bde5c4
DV		 179}
180
e99e88a9 181static void aq_nic_polling_timer_cb(struct timer_list *t)
97bde5c4 182{
e99e88a9 183 struct aq_nic_s *self = from_timer(self, t, polling_timer);
97bde5c4
DV		 184 struct aq_vec_s *aq_vec = NULL;
185 unsigned int i = 0U;
186
187 for (i = 0U, aq_vec = self->aq_vec[0];
188 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
189 aq_vec_isr(i, (void *)aq_vec);
190
191 mod_timer(&self->polling_timer, jiffies +
192 AQ_CFG_POLLING_TIMER_INTERVAL);
193}
194
97bde5c4
DV		 195int aq_nic_ndev_register(struct aq_nic_s *self)
196{
197 int err = 0;
97bde5c4
DV		 198
199 if (!self->ndev) {
200 err = -EINVAL;
201 goto err_exit;
202 }
23ee07ad 203
0c58c35f
IR		 204 err = hw_atl_utils_initfw(self->aq_hw, &self->aq_fw_ops);
205 if (err)
206 goto err_exit;
207
208 err = self->aq_fw_ops->get_mac_permanent(self->aq_hw,
97bde5c4 209 self->ndev->dev_addr);
23ee07ad 210 if (err)
97bde5c4
DV		 211 goto err_exit;
212
213#if defined(AQ_CFG_MAC_ADDR_PERMANENT)
214 {
215 static u8 mac_addr_permanent[] = AQ_CFG_MAC_ADDR_PERMANENT;
216
217 ether_addr_copy(self->ndev->dev_addr, mac_addr_permanent);
218 }
219#endif
97bde5c4 220
23ee07ad
IR		 221 for (self->aq_vecs = 0; self->aq_vecs < aq_nic_get_cfg(self)->vecs;
222 self->aq_vecs++) {
223 self->aq_vec[self->aq_vecs] =
224 aq_vec_alloc(self, self->aq_vecs, aq_nic_get_cfg(self));
225 if (!self->aq_vec[self->aq_vecs]) {
226 err = -ENOMEM;
227 goto err_exit;
228 }
229 }
230
97bde5c4
DV		 231 netif_carrier_off(self->ndev);
232
3aec6412 233 netif_tx_disable(self->ndev);
97bde5c4 234
55629109 235 err = register_netdev(self->ndev);
23ee07ad 236 if (err)
55629109
PB		 237 goto err_exit;
238
97bde5c4
DV		 239err_exit:
240 return err;
241}
242
23ee07ad 243void aq_nic_ndev_init(struct aq_nic_s *self)
97bde5c4 244{
4cbc9f92 245 const struct aq_hw_caps_s *aq_hw_caps = self->aq_nic_cfg.aq_hw_caps;
97bde5c4
DV		 246 struct aq_nic_cfg_s *aq_nic_cfg = &self->aq_nic_cfg;
247
248 self->ndev->hw_features |= aq_hw_caps->hw_features;
249 self->ndev->features = aq_hw_caps->hw_features;
8c61ab7f
IR		 250 self->ndev->vlan_features |= NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
251 NETIF_F_RXHASH | NETIF_F_SG | NETIF_F_LRO;
97bde5c4 252 self->ndev->priv_flags = aq_hw_caps->hw_priv_flags;
3e9a5451
IR		 253 self->ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
254
97bde5c4 255 self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN;
8fcb98f4 256 self->ndev->max_mtu = aq_hw_caps->mtu - ETH_FCS_LEN - ETH_HLEN;
97bde5c4 257
97bde5c4
DV		 258}
259
260void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx,
261 struct aq_ring_s *ring)
262{
263 self->aq_ring_tx[idx] = ring;
264}
265
97bde5c4
DV		 266struct net_device *aq_nic_get_ndev(struct aq_nic_s *self)
267{
268 return self->ndev;
269}
270
271int aq_nic_init(struct aq_nic_s *self)
272{
273 struct aq_vec_s *aq_vec = NULL;
274 int err = 0;
275 unsigned int i = 0U;
276
277 self->power_state = AQ_HW_POWER_STATE_D0;
8fcb98f4 278 err = self->aq_hw_ops->hw_reset(self->aq_hw);
97bde5c4
DV		 279 if (err < 0)
280 goto err_exit;
281
8fcb98f4 282 err = self->aq_hw_ops->hw_init(self->aq_hw,
23ee07ad 283 aq_nic_get_ndev(self)->dev_addr);
97bde5c4
DV		 284 if (err < 0)
285 goto err_exit;
286
287 for (i = 0U, aq_vec = self->aq_vec[0];
288 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
8fcb98f4 289 aq_vec_init(aq_vec, self->aq_hw_ops, self->aq_hw);
97bde5c4 290
23ee07ad
IR		 291 netif_carrier_off(self->ndev);
292
97bde5c4
DV		 293err_exit:
294 return err;
295}
296
97bde5c4
DV		 297int aq_nic_start(struct aq_nic_s *self)
298{
299 struct aq_vec_s *aq_vec = NULL;
300 int err = 0;
301 unsigned int i = 0U;
302
8fcb98f4 303 err = self->aq_hw_ops->hw_multicast_list_set(self->aq_hw,
97bde5c4
DV		 304 self->mc_list.ar,
305 self->mc_list.count);
306 if (err < 0)
307 goto err_exit;
308
8fcb98f4 309 err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw,
97bde5c4
DV		 310 self->packet_filter);
311 if (err < 0)
312 goto err_exit;
313
314 for (i = 0U, aq_vec = self->aq_vec[0];
315 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
316 err = aq_vec_start(aq_vec);
317 if (err < 0)
318 goto err_exit;
319 }
320
8fcb98f4 321 err = self->aq_hw_ops->hw_start(self->aq_hw);
97bde5c4
DV		 322 if (err < 0)
323 goto err_exit;
324
b82ee71a
IR		 325 err = aq_nic_update_interrupt_moderation_settings(self);
326 if (err)
97bde5c4 327 goto err_exit;
e99e88a9 328 timer_setup(&self->service_timer, aq_nic_service_timer_cb, 0);
97bde5c4
DV		 329 mod_timer(&self->service_timer, jiffies +
330 AQ_CFG_SERVICE_TIMER_INTERVAL);
331
332 if (self->aq_nic_cfg.is_polling) {
e99e88a9 333 timer_setup(&self->polling_timer, aq_nic_polling_timer_cb, 0);
97bde5c4
DV		 334 mod_timer(&self->polling_timer, jiffies +
335 AQ_CFG_POLLING_TIMER_INTERVAL);
336 } else {
337 for (i = 0U, aq_vec = self->aq_vec[0];
338 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
23ee07ad 339 err = aq_pci_func_alloc_irq(self, i,
97bde5c4 340 self->ndev->name, aq_vec,
23ee07ad 341 aq_vec_get_affinity_mask(aq_vec));
97bde5c4
DV		 342 if (err < 0)
343 goto err_exit;
344 }
345
8fcb98f4 346 err = self->aq_hw_ops->hw_irq_enable(self->aq_hw,
97bde5c4
DV		 347 AQ_CFG_IRQ_MASK);
348 if (err < 0)
349 goto err_exit;
350 }
351
97bde5c4
DV		 352 err = netif_set_real_num_tx_queues(self->ndev, self->aq_vecs);
353 if (err < 0)
354 goto err_exit;
355
356 err = netif_set_real_num_rx_queues(self->ndev, self->aq_vecs);
357 if (err < 0)
358 goto err_exit;
359
3aec6412
IR		 360 netif_tx_start_all_queues(self->ndev);
361
97bde5c4
DV		 362err_exit:
363 return err;
364}
365
e399553d
PB		 366static unsigned int aq_nic_map_skb(struct aq_nic_s *self,
367 struct sk_buff *skb,
368 struct aq_ring_s *ring)
97bde5c4
DV		 369{
370 unsigned int ret = 0U;
371 unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
372 unsigned int frag_count = 0U;
e399553d 373 unsigned int dx = ring->sw_tail;
c7545689 374 struct aq_ring_buff_s *first = NULL;
e399553d 375 struct aq_ring_buff_s *dx_buff = &ring->buff_ring[dx];
97bde5c4 376
e399553d
PB		 377 if (unlikely(skb_is_gso(skb))) {
378 dx_buff->flags = 0U;
379 dx_buff->len_pkt = skb->len;
380 dx_buff->len_l2 = ETH_HLEN;
381 dx_buff->len_l3 = ip_hdrlen(skb);
382 dx_buff->len_l4 = tcp_hdrlen(skb);
383 dx_buff->mss = skb_shinfo(skb)->gso_size;
384 dx_buff->is_txc = 1U;
c7545689 385 dx_buff->eop_index = 0xffffU;
e399553d 386
386aff88
PB		 387 dx_buff->is_ipv6 =
388 (ip_hdr(skb)->version == 6) ? 1U : 0U;
389
e399553d
PB		 390 dx = aq_ring_next_dx(ring, dx);
391 dx_buff = &ring->buff_ring[dx];
392 ++ret;
393 }
394
395 dx_buff->flags = 0U;
396 dx_buff->len = skb_headlen(skb);
397 dx_buff->pa = dma_map_single(aq_nic_get_dev(self),
398 skb->data,
399 dx_buff->len,
400 DMA_TO_DEVICE);
97bde5c4 401
e399553d
PB		 402 if (unlikely(dma_mapping_error(aq_nic_get_dev(self), dx_buff->pa)))
403 goto exit;
404
c7545689 405 first = dx_buff;
e399553d
PB		 406 dx_buff->len_pkt = skb->len;
407 dx_buff->is_sop = 1U;
408 dx_buff->is_mapped = 1U;
97bde5c4
DV		 409 ++ret;
410
411 if (skb->ip_summed == CHECKSUM_PARTIAL) {
e399553d
PB		 412 dx_buff->is_ip_cso = (htons(ETH_P_IP) == skb->protocol) ?
413 1U : 0U;
ea0504f5
PB		 414
415 if (ip_hdr(skb)->version == 4) {
416 dx_buff->is_tcp_cso =
417 (ip_hdr(skb)->protocol == IPPROTO_TCP) ?
418 1U : 0U;
419 dx_buff->is_udp_cso =
420 (ip_hdr(skb)->protocol == IPPROTO_UDP) ?
421 1U : 0U;
422 } else if (ip_hdr(skb)->version == 6) {
423 dx_buff->is_tcp_cso =
424 (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP) ?
425 1U : 0U;
426 dx_buff->is_udp_cso =
427 (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP) ?
428 1U : 0U;
429 }
97bde5c4
DV		 430 }
431
432 for (; nr_frags--; ++frag_count) {
e399553d 433 unsigned int frag_len = 0U;
c7545689
PB		 434 unsigned int buff_offset = 0U;
435 unsigned int buff_size = 0U;
97bde5c4
DV		 436 dma_addr_t frag_pa;
437 skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count];
438
439 frag_len = skb_frag_size(frag);
97bde5c4 440
c7545689
PB		 441 while (frag_len) {
442 if (frag_len > AQ_CFG_TX_FRAME_MAX)
443 buff_size = AQ_CFG_TX_FRAME_MAX;
444 else
445 buff_size = frag_len;
446
447 frag_pa = skb_frag_dma_map(aq_nic_get_dev(self),
448 frag,
449 buff_offset,
450 buff_size,
451 DMA_TO_DEVICE);
452
453 if (unlikely(dma_mapping_error(aq_nic_get_dev(self),
454 frag_pa)))
455 goto mapping_error;
e399553d 456
e399553d
PB		 457 dx = aq_ring_next_dx(ring, dx);
458 dx_buff = &ring->buff_ring[dx];
459
460 dx_buff->flags = 0U;
c7545689 461 dx_buff->len = buff_size;
e399553d
PB		 462 dx_buff->pa = frag_pa;
463 dx_buff->is_mapped = 1U;
c7545689
PB		 464 dx_buff->eop_index = 0xffffU;
465
466 frag_len -= buff_size;
467 buff_offset += buff_size;
97bde5c4 468
e399553d 469 ++ret;
97bde5c4 470 }
97bde5c4
DV		 471 }
472
c7545689 473 first->eop_index = dx;
e399553d
PB		 474 dx_buff->is_eop = 1U;
475 dx_buff->skb = skb;
476 goto exit;
477
478mapping_error:
479 for (dx = ring->sw_tail;
480 ret > 0;
481 --ret, dx = aq_ring_next_dx(ring, dx)) {
482 dx_buff = &ring->buff_ring[dx];
483
484 if (!dx_buff->is_txc && dx_buff->pa) {
485 if (unlikely(dx_buff->is_sop)) {
486 dma_unmap_single(aq_nic_get_dev(self),
487 dx_buff->pa,
488 dx_buff->len,
489 DMA_TO_DEVICE);
490 } else {
491 dma_unmap_page(aq_nic_get_dev(self),
492 dx_buff->pa,
493 dx_buff->len,
494 DMA_TO_DEVICE);
495 }
496 }
97bde5c4
DV		 497 }
498
e399553d 499exit:
97bde5c4
DV		 500 return ret;
501}
502
503int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
97bde5c4
DV		 504{
505 struct aq_ring_s *ring = NULL;
506 unsigned int frags = 0U;
507 unsigned int vec = skb->queue_mapping % self->aq_nic_cfg.vecs;
508 unsigned int tc = 0U;
b350d7b8 509 int err = NETDEV_TX_OK;
97bde5c4
DV		 510
511 frags = skb_shinfo(skb)->nr_frags + 1;
512
513 ring = self->aq_ring_tx[AQ_NIC_TCVEC2RING(self, tc, vec)];
514
97bde5c4
DV		 515 if (frags > AQ_CFG_SKB_FRAGS_MAX) {
516 dev_kfree_skb_any(skb);
517 goto err_exit;
518 }
519
3aec6412 520 aq_ring_update_queue_state(ring);
97bde5c4 521
3aec6412
IR		 522 /* Above status update may stop the queue. Check this. */
523 if (__netif_subqueue_stopped(self->ndev, ring->idx)) {
97bde5c4
DV		 524 err = NETDEV_TX_BUSY;
525 goto err_exit;
526 }
527
278175ab 528 frags = aq_nic_map_skb(self, skb, ring);
97bde5c4 529
278175ab 530 if (likely(frags)) {
8fcb98f4 531 err = self->aq_hw_ops->hw_ring_tx_xmit(self->aq_hw,
23ee07ad 532 ring, frags);
278175ab 533 if (err >= 0) {
278175ab
PB		 534 ++ring->stats.tx.packets;
535 ring->stats.tx.bytes += skb->len;
536 }
537 } else {
97bde5c4 538 err = NETDEV_TX_BUSY;
97bde5c4
DV		 539 }
540
541err_exit:
97bde5c4
DV		 542 return err;
543}
544
b82ee71a
IR		 545int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self)
546{
8fcb98f4 547 return self->aq_hw_ops->hw_interrupt_moderation_set(self->aq_hw);
b82ee71a
IR		 548}
549
97bde5c4
DV		 550int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags)
551{
552 int err = 0;
553
8fcb98f4 554 err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, flags);
97bde5c4
DV		 555 if (err < 0)
556 goto err_exit;
557
558 self->packet_filter = flags;
559
560err_exit:
561 return err;
562}
563
564int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev)
565{
566 struct netdev_hw_addr *ha = NULL;
567 unsigned int i = 0U;
568
569 self->mc_list.count = 0U;
570
571 netdev_for_each_mc_addr(ha, ndev) {
572 ether_addr_copy(self->mc_list.ar[i++], ha->addr);
573 ++self->mc_list.count;
b21f502f
IR		 574
575 if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX)
576 break;
97bde5c4
DV		 577 }
578
b21f502f
IR		 579 if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX) {
580 /* Number of filters is too big: atlantic does not support this.
581 * Force all multi filter to support this.
582 * With this we disable all UC filters and setup "all pass"
583 * multicast mask
584 */
585 self->packet_filter |= IFF_ALLMULTI;
8fcb98f4
IR		 586 self->aq_nic_cfg.mc_list_count = 0;
587 return self->aq_hw_ops->hw_packet_filter_set(self->aq_hw,
23ee07ad 588 self->packet_filter);
b21f502f 589 } else {
8fcb98f4 590 return self->aq_hw_ops->hw_multicast_list_set(self->aq_hw,
97bde5c4
DV		 591 self->mc_list.ar,
592 self->mc_list.count);
b21f502f 593 }
97bde5c4
DV		 594}
595
596int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu)
597{
97bde5c4
DV		 598 self->aq_nic_cfg.mtu = new_mtu;
599
d85fc17b 600 return 0;
97bde5c4
DV		 601}
602
603int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev)
604{
8fcb98f4 605 return self->aq_hw_ops->hw_set_mac_address(self->aq_hw, ndev->dev_addr);
97bde5c4
DV		 606}
607
608unsigned int aq_nic_get_link_speed(struct aq_nic_s *self)
609{
610 return self->link_status.mbps;
611}
612
613int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p)
614{
615 u32 *regs_buff = p;
616 int err = 0;
617
618 regs->version = 1;
619
8fcb98f4
IR		 620 err = self->aq_hw_ops->hw_get_regs(self->aq_hw,
621 self->aq_nic_cfg.aq_hw_caps,
622 regs_buff);
97bde5c4
DV		 623 if (err < 0)
624 goto err_exit;
625
626err_exit:
627 return err;
628}
629
630int aq_nic_get_regs_count(struct aq_nic_s *self)
631{
8fcb98f4 632 return self->aq_nic_cfg.aq_hw_caps->mac_regs_count;
97bde5c4
DV		 633}
634
635void aq_nic_get_stats(struct aq_nic_s *self, u64 *data)
636{
97bde5c4
DV		 637 unsigned int i = 0U;
638 unsigned int count = 0U;
be08d839 639 struct aq_vec_s *aq_vec = NULL;
8fcb98f4 640 struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw);
97bde5c4 641
be08d839 642 if (!stats)
97bde5c4
DV		 643 goto err_exit;
644
be08d839
IR		 645 data[i] = stats->uprc + stats->mprc + stats->bprc;
646 data[++i] = stats->uprc;
647 data[++i] = stats->mprc;
648 data[++i] = stats->bprc;
649 data[++i] = stats->erpt;
650 data[++i] = stats->uptc + stats->mptc + stats->bptc;
651 data[++i] = stats->uptc;
652 data[++i] = stats->mptc;
653 data[++i] = stats->bptc;
654 data[++i] = stats->ubrc;
655 data[++i] = stats->ubtc;
656 data[++i] = stats->mbrc;
657 data[++i] = stats->mbtc;
658 data[++i] = stats->bbrc;
659 data[++i] = stats->bbtc;
660 data[++i] = stats->ubrc + stats->mbrc + stats->bbrc;
661 data[++i] = stats->ubtc + stats->mbtc + stats->bbtc;
662 data[++i] = stats->dma_pkt_rc;
663 data[++i] = stats->dma_pkt_tc;
664 data[++i] = stats->dma_oct_rc;
665 data[++i] = stats->dma_oct_tc;
666 data[++i] = stats->dpc;
667
668 i++;
669
670 data += i;
97bde5c4
DV		 671
672 for (i = 0U, aq_vec = self->aq_vec[0];
3013c498 673 aq_vec && self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
97bde5c4
DV		 674 data += count;
675 aq_vec_get_sw_stats(aq_vec, data, &count);
676 }
677
678err_exit:;
97bde5c4
DV		 679}
680
9f8a2203
IR		 681static void aq_nic_update_ndev_stats(struct aq_nic_s *self)
682{
683 struct net_device *ndev = self->ndev;
8fcb98f4 684 struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw);
9f8a2203
IR		 685
686 ndev->stats.rx_packets = stats->uprc + stats->mprc + stats->bprc;
687 ndev->stats.rx_bytes = stats->ubrc + stats->mbrc + stats->bbrc;
688 ndev->stats.rx_errors = stats->erpr;
689 ndev->stats.tx_packets = stats->uptc + stats->mptc + stats->bptc;
690 ndev->stats.tx_bytes = stats->ubtc + stats->mbtc + stats->bbtc;
691 ndev->stats.tx_errors = stats->erpt;
45cc1c7a 692 ndev->stats.multicast = stats->mprc;
9f8a2203
IR		 693}
694
f8244ab5
PR		 695void aq_nic_get_link_ksettings(struct aq_nic_s *self,
696 struct ethtool_link_ksettings *cmd)
97bde5c4 697{
854ab38c
IR		 698 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
699 cmd->base.port = PORT_FIBRE;
700 else
701 cmd->base.port = PORT_TP;
97bde5c4 702 /* This driver supports only 10G capable adapters, so DUPLEX_FULL */
f8244ab5
PR		 703 cmd->base.duplex = DUPLEX_FULL;
704 cmd->base.autoneg = self->aq_nic_cfg.is_autoneg;
705
8f9000a5
PB		 706 ethtool_link_ksettings_zero_link_mode(cmd, supported);
707
8fcb98f4 708 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_10G)
8f9000a5
PB		 709 ethtool_link_ksettings_add_link_mode(cmd, supported,
710 10000baseT_Full);
711
8fcb98f4 712 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_5G)
8f9000a5
PB		 713 ethtool_link_ksettings_add_link_mode(cmd, supported,
714 5000baseT_Full);
715
8fcb98f4 716 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_2GS)
8f9000a5
PB		 717 ethtool_link_ksettings_add_link_mode(cmd, supported,
718 2500baseT_Full);
719
8fcb98f4 720 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_1G)
8f9000a5
PB		 721 ethtool_link_ksettings_add_link_mode(cmd, supported,
722 1000baseT_Full);
723
8fcb98f4 724 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_100M)
8f9000a5
PB		 725 ethtool_link_ksettings_add_link_mode(cmd, supported,
726 100baseT_Full);
727
8fcb98f4 728 if (self->aq_nic_cfg.aq_hw_caps->flow_control)
8f9000a5
PB		 729 ethtool_link_ksettings_add_link_mode(cmd, supported,
730 Pause);
731
732 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
854ab38c
IR		 733
734 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
735 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
736 else
737 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
8f9000a5
PB		 738
739 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
740
741 if (self->aq_nic_cfg.is_autoneg)
742 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
743
744 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10G)
745 ethtool_link_ksettings_add_link_mode(cmd, advertising,
746 10000baseT_Full);
747
748 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_5G)
749 ethtool_link_ksettings_add_link_mode(cmd, advertising,
750 5000baseT_Full);
751
752 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_2GS)
753 ethtool_link_ksettings_add_link_mode(cmd, advertising,
754 2500baseT_Full);
755
756 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_1G)
757 ethtool_link_ksettings_add_link_mode(cmd, advertising,
758 1000baseT_Full);
759
760 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_100M)
761 ethtool_link_ksettings_add_link_mode(cmd, advertising,
762 100baseT_Full);
763
764 if (self->aq_nic_cfg.flow_control)
765 ethtool_link_ksettings_add_link_mode(cmd, advertising,
766 Pause);
767
854ab38c
IR		 768 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
769 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
770 else
771 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
97bde5c4
DV		 772}
773
f8244ab5
PR		 774int aq_nic_set_link_ksettings(struct aq_nic_s *self,
775 const struct ethtool_link_ksettings *cmd)
97bde5c4
DV		 776{
777 u32 speed = 0U;
778 u32 rate = 0U;
779 int err = 0;
780
f8244ab5 781 if (cmd->base.autoneg == AUTONEG_ENABLE) {
8fcb98f4 782 rate = self->aq_nic_cfg.aq_hw_caps->link_speed_msk;
97bde5c4
DV		 783 self->aq_nic_cfg.is_autoneg = true;
784 } else {
f8244ab5 785 speed = cmd->base.speed;
97bde5c4
DV		 786
787 switch (speed) {
788 case SPEED_100:
789 rate = AQ_NIC_RATE_100M;
790 break;
791
792 case SPEED_1000:
793 rate = AQ_NIC_RATE_1G;
794 break;
795
796 case SPEED_2500:
797 rate = AQ_NIC_RATE_2GS;
798 break;
799
800 case SPEED_5000:
801 rate = AQ_NIC_RATE_5G;
802 break;
803
804 case SPEED_10000:
805 rate = AQ_NIC_RATE_10G;
806 break;
807
808 default:
809 err = -1;
810 goto err_exit;
811 break;
812 }
8fcb98f4 813 if (!(self->aq_nic_cfg.aq_hw_caps->link_speed_msk & rate)) {
97bde5c4
DV		 814 err = -1;
815 goto err_exit;
816 }
817
818 self->aq_nic_cfg.is_autoneg = false;
819 }
820
0c58c35f 821 err = self->aq_fw_ops->set_link_speed(self->aq_hw, rate);
97bde5c4
DV		 822 if (err < 0)
823 goto err_exit;
824
825 self->aq_nic_cfg.link_speed_msk = rate;
826
827err_exit:
828 return err;
829}
830
831struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self)
832{
833 return &self->aq_nic_cfg;
834}
835
836u32 aq_nic_get_fw_version(struct aq_nic_s *self)
837{
838 u32 fw_version = 0U;
839
8fcb98f4 840 self->aq_hw_ops->hw_get_fw_version(self->aq_hw, &fw_version);
97bde5c4
DV		 841
842 return fw_version;
843}
844
845int aq_nic_stop(struct aq_nic_s *self)
846{
847 struct aq_vec_s *aq_vec = NULL;
848 unsigned int i = 0U;
849
3aec6412 850 netif_tx_disable(self->ndev);
93d87b8f 851 netif_carrier_off(self->ndev);
97bde5c4
DV		 852
853 del_timer_sync(&self->service_timer);
854
8fcb98f4 855 self->aq_hw_ops->hw_irq_disable(self->aq_hw, AQ_CFG_IRQ_MASK);
97bde5c4
DV		 856
857 if (self->aq_nic_cfg.is_polling)
858 del_timer_sync(&self->polling_timer);
859 else
23ee07ad 860 aq_pci_func_free_irqs(self);
97bde5c4
DV		 861
862 for (i = 0U, aq_vec = self->aq_vec[0];
863 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
864 aq_vec_stop(aq_vec);
865
8fcb98f4 866 return self->aq_hw_ops->hw_stop(self->aq_hw);
97bde5c4
DV		 867}
868
869void aq_nic_deinit(struct aq_nic_s *self)
870{
871 struct aq_vec_s *aq_vec = NULL;
872 unsigned int i = 0U;
873
874 if (!self)
875 goto err_exit;
876
877 for (i = 0U, aq_vec = self->aq_vec[0];
878 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
879 aq_vec_deinit(aq_vec);
880
881 if (self->power_state == AQ_HW_POWER_STATE_D0) {
8fcb98f4 882 (void)self->aq_hw_ops->hw_deinit(self->aq_hw);
97bde5c4 883 } else {
8fcb98f4 884 (void)self->aq_hw_ops->hw_set_power(self->aq_hw,
97bde5c4
DV		 885 self->power_state);
886 }
887
888err_exit:;
889}
890
23ee07ad 891void aq_nic_free_vectors(struct aq_nic_s *self)
97bde5c4
DV		 892{
893 unsigned int i = 0U;
894
895 if (!self)
896 goto err_exit;
897
08b5cf08 898 for (i = ARRAY_SIZE(self->aq_vec); i--;) {
3013c498 899 if (self->aq_vec[i]) {
97bde5c4 900 aq_vec_free(self->aq_vec[i]);
3013c498
PB		 901 self->aq_vec[i] = NULL;
902 }
97bde5c4
DV		 903 }
904
905err_exit:;
906}
907
908int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg)
909{
910 int err = 0;
911
912 if (!netif_running(self->ndev)) {
913 err = 0;
d5919aeb 914 goto out;
97bde5c4
DV		 915 }
916 rtnl_lock();
917 if (pm_msg->event & PM_EVENT_SLEEP || pm_msg->event & PM_EVENT_FREEZE) {
918 self->power_state = AQ_HW_POWER_STATE_D3;
919 netif_device_detach(self->ndev);
920 netif_tx_stop_all_queues(self->ndev);
921
922 err = aq_nic_stop(self);
923 if (err < 0)
924 goto err_exit;
925
926 aq_nic_deinit(self);
927 } else {
928 err = aq_nic_init(self);
929 if (err < 0)
930 goto err_exit;
931
932 err = aq_nic_start(self);
933 if (err < 0)
934 goto err_exit;
935
936 netif_device_attach(self->ndev);
937 netif_tx_start_all_queues(self->ndev);
938 }
97bde5c4
DV		 939
940err_exit:
d5919aeb
PB		 941 rtnl_unlock();
942out:
97bde5c4
DV		 943 return err;
944}
90869ddf
IR		 945
946void aq_nic_shutdown(struct aq_nic_s *self)
947{
948 int err = 0;
949
950 if (!self->ndev)
951 return;
952
953 rtnl_lock();
954
955 netif_device_detach(self->ndev);
956
9a11aff2
IR		 957 if (netif_running(self->ndev)) {
958 err = aq_nic_stop(self);
959 if (err < 0)
960 goto err_exit;
961 }
90869ddf
IR		 962 aq_nic_deinit(self);
963
964err_exit:
965 rtnl_unlock();
966}
Linux 6.x block layer and io_uring tree(s)