1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Atlantic Network Driver
4 * Copyright (C) 2014-2019 aQuantia Corporation
5 * Copyright (C) 2019-2020 Marvell International Ltd.
8 /* File aq_nic.c: Definition of common code for NIC. */
14 #include "aq_pci_func.h"
15 #include "aq_macsec.h"
19 #include "aq_filters.h"
21 #include <linux/moduleparam.h>
22 #include <linux/netdevice.h>
23 #include <linux/etherdevice.h>
24 #include <linux/timer.h>
25 #include <linux/cpu.h>
27 #include <linux/tcp.h>
29 #include <net/pkt_cls.h>
31 static unsigned int aq_itr = AQ_CFG_INTERRUPT_MODERATION_AUTO;
32 module_param_named(aq_itr, aq_itr, uint, 0644);
33 MODULE_PARM_DESC(aq_itr, "Interrupt throttling mode");
35 static unsigned int aq_itr_tx;
36 module_param_named(aq_itr_tx, aq_itr_tx, uint, 0644);
37 MODULE_PARM_DESC(aq_itr_tx, "TX interrupt throttle rate");
39 static unsigned int aq_itr_rx;
40 module_param_named(aq_itr_rx, aq_itr_rx, uint, 0644);
41 MODULE_PARM_DESC(aq_itr_rx, "RX interrupt throttle rate");
43 static void aq_nic_update_ndev_stats(struct aq_nic_s *self);
45 static void aq_nic_rss_init(struct aq_nic_s *self, unsigned int num_rss_queues)
47 static u8 rss_key[AQ_CFG_RSS_HASHKEY_SIZE] = {
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
54 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
55 struct aq_rss_parameters *rss_params;
58 rss_params = &cfg->aq_rss;
60 rss_params->hash_secret_key_size = sizeof(rss_key);
61 memcpy(rss_params->hash_secret_key, rss_key, sizeof(rss_key));
62 rss_params->indirection_table_size = AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
64 for (i = rss_params->indirection_table_size; i--;)
65 rss_params->indirection_table[i] = i & (num_rss_queues - 1);
68 /* Recalculate the number of vectors */
69 static void aq_nic_cfg_update_num_vecs(struct aq_nic_s *self)
71 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
73 cfg->vecs = min(cfg->aq_hw_caps->vecs, AQ_CFG_VECS_DEF);
74 cfg->vecs = min(cfg->vecs, num_online_cpus());
75 if (self->irqvecs > AQ_HW_SERVICE_IRQS)
76 cfg->vecs = min(cfg->vecs, self->irqvecs - AQ_HW_SERVICE_IRQS);
77 /* cfg->vecs should be power of 2 for RSS */
78 cfg->vecs = rounddown_pow_of_two(cfg->vecs);
80 if (ATL_HW_IS_CHIP_FEATURE(self->aq_hw, ANTIGUA)) {
82 cfg->vecs = min(cfg->vecs, 4U);
86 cfg->tc_mode = AQ_TC_MODE_8TCS;
88 cfg->tc_mode = AQ_TC_MODE_4TCS;
91 cfg->num_rss_queues = min(cfg->vecs, AQ_CFG_NUM_RSS_QUEUES_DEF);
92 aq_nic_rss_init(self, cfg->num_rss_queues);
95 /* Checks hw_caps and 'corrects' aq_nic_cfg in runtime */
96 void aq_nic_cfg_start(struct aq_nic_s *self)
98 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
101 cfg->tcs = AQ_CFG_TCS_DEF;
103 cfg->is_polling = AQ_CFG_IS_POLLING_DEF;
106 cfg->tx_itr = aq_itr_tx;
107 cfg->rx_itr = aq_itr_rx;
109 cfg->rxpageorder = AQ_CFG_RX_PAGEORDER;
110 cfg->is_rss = AQ_CFG_IS_RSS_DEF;
111 cfg->aq_rss.base_cpu_number = AQ_CFG_RSS_BASE_CPU_NUM_DEF;
112 cfg->fc.req = AQ_CFG_FC_MODE;
113 cfg->wol = AQ_CFG_WOL_MODES;
115 cfg->mtu = AQ_CFG_MTU_DEF;
116 cfg->link_speed_msk = AQ_CFG_SPEED_MSK;
117 cfg->is_autoneg = AQ_CFG_IS_AUTONEG_DEF;
119 cfg->is_lro = AQ_CFG_IS_LRO_DEF;
123 cfg->rxds = min(cfg->aq_hw_caps->rxds_max, AQ_CFG_RXDS_DEF);
124 cfg->txds = min(cfg->aq_hw_caps->txds_max, AQ_CFG_TXDS_DEF);
126 aq_nic_cfg_update_num_vecs(self);
128 cfg->irq_type = aq_pci_func_get_irq_type(self);
130 if ((cfg->irq_type == AQ_HW_IRQ_LEGACY) ||
131 (cfg->aq_hw_caps->vecs == 1U) ||
137 /* Check if we have enough vectors allocated for
138 * link status IRQ. If no - we'll know link state from
139 * slower service task.
141 if (AQ_HW_SERVICE_IRQS > 0 && cfg->vecs + 1 <= self->irqvecs)
142 cfg->link_irq_vec = cfg->vecs;
144 cfg->link_irq_vec = 0;
146 cfg->link_speed_msk &= cfg->aq_hw_caps->link_speed_msk;
147 cfg->features = cfg->aq_hw_caps->hw_features;
148 cfg->is_vlan_rx_strip = !!(cfg->features & NETIF_F_HW_VLAN_CTAG_RX);
149 cfg->is_vlan_tx_insert = !!(cfg->features & NETIF_F_HW_VLAN_CTAG_TX);
150 cfg->is_vlan_force_promisc = true;
152 for (i = 0; i < sizeof(cfg->prio_tc_map); i++)
153 cfg->prio_tc_map[i] = cfg->tcs * i / 8;
156 static int aq_nic_update_link_status(struct aq_nic_s *self)
158 int err = self->aq_fw_ops->update_link_status(self->aq_hw);
164 if (self->aq_fw_ops->get_flow_control)
165 self->aq_fw_ops->get_flow_control(self->aq_hw, &fc);
166 self->aq_nic_cfg.fc.cur = fc;
168 if (self->link_status.mbps != self->aq_hw->aq_link_status.mbps) {
169 netdev_info(self->ndev, "%s: link change old %d new %d\n",
170 AQ_CFG_DRV_NAME, self->link_status.mbps,
171 self->aq_hw->aq_link_status.mbps);
172 aq_nic_update_interrupt_moderation_settings(self);
175 aq_ptp_clock_init(self);
176 aq_ptp_tm_offset_set(self,
177 self->aq_hw->aq_link_status.mbps);
178 aq_ptp_link_change(self);
181 /* Driver has to update flow control settings on RX block
183 * We should query FW whether it negotiated FC.
185 if (self->aq_hw_ops->hw_set_fc)
186 self->aq_hw_ops->hw_set_fc(self->aq_hw, fc, 0);
189 self->link_status = self->aq_hw->aq_link_status;
190 if (!netif_carrier_ok(self->ndev) && self->link_status.mbps) {
191 aq_utils_obj_set(&self->flags,
192 AQ_NIC_FLAG_STARTED);
193 aq_utils_obj_clear(&self->flags,
195 netif_carrier_on(self->ndev);
196 #if IS_ENABLED(CONFIG_MACSEC)
197 aq_macsec_enable(self);
199 if (self->aq_hw_ops->hw_tc_rate_limit_set)
200 self->aq_hw_ops->hw_tc_rate_limit_set(self->aq_hw);
202 netif_tx_wake_all_queues(self->ndev);
204 if (netif_carrier_ok(self->ndev) && !self->link_status.mbps) {
205 netif_carrier_off(self->ndev);
206 netif_tx_disable(self->ndev);
207 aq_utils_obj_set(&self->flags, AQ_NIC_LINK_DOWN);
213 static irqreturn_t aq_linkstate_threaded_isr(int irq, void *private)
215 struct aq_nic_s *self = private;
220 aq_nic_update_link_status(self);
222 self->aq_hw_ops->hw_irq_enable(self->aq_hw,
223 BIT(self->aq_nic_cfg.link_irq_vec));
228 static void aq_nic_service_task(struct work_struct *work)
230 struct aq_nic_s *self = container_of(work, struct aq_nic_s,
234 aq_ptp_service_task(self);
236 if (aq_utils_obj_test(&self->flags, AQ_NIC_FLAGS_IS_NOT_READY))
239 err = aq_nic_update_link_status(self);
243 #if IS_ENABLED(CONFIG_MACSEC)
244 aq_macsec_work(self);
247 mutex_lock(&self->fwreq_mutex);
248 if (self->aq_fw_ops->update_stats)
249 self->aq_fw_ops->update_stats(self->aq_hw);
250 mutex_unlock(&self->fwreq_mutex);
252 aq_nic_update_ndev_stats(self);
255 static void aq_nic_service_timer_cb(struct timer_list *t)
257 struct aq_nic_s *self = from_timer(self, t, service_timer);
259 mod_timer(&self->service_timer,
260 jiffies + AQ_CFG_SERVICE_TIMER_INTERVAL);
262 aq_ndev_schedule_work(&self->service_task);
265 static void aq_nic_polling_timer_cb(struct timer_list *t)
267 struct aq_nic_s *self = from_timer(self, t, polling_timer);
268 struct aq_vec_s *aq_vec = NULL;
271 for (i = 0U, aq_vec = self->aq_vec[0];
272 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
273 aq_vec_isr(i, (void *)aq_vec);
275 mod_timer(&self->polling_timer, jiffies +
276 AQ_CFG_POLLING_TIMER_INTERVAL);
279 static int aq_nic_hw_prepare(struct aq_nic_s *self)
283 err = self->aq_hw_ops->hw_soft_reset(self->aq_hw);
287 err = self->aq_hw_ops->hw_prepare(self->aq_hw, &self->aq_fw_ops);
293 static bool aq_nic_is_valid_ether_addr(const u8 *addr)
295 /* Some engineering samples of Aquantia NICs are provisioned with a
296 * partially populated MAC, which is still invalid.
298 return !(addr[0] == 0 && addr[1] == 0 && addr[2] == 0);
301 int aq_nic_ndev_register(struct aq_nic_s *self)
310 err = aq_nic_hw_prepare(self);
314 #if IS_ENABLED(CONFIG_MACSEC)
315 aq_macsec_init(self);
318 mutex_lock(&self->fwreq_mutex);
319 err = self->aq_fw_ops->get_mac_permanent(self->aq_hw,
320 self->ndev->dev_addr);
321 mutex_unlock(&self->fwreq_mutex);
325 if (!is_valid_ether_addr(self->ndev->dev_addr) ||
326 !aq_nic_is_valid_ether_addr(self->ndev->dev_addr)) {
327 netdev_warn(self->ndev, "MAC is invalid, will use random.");
328 eth_hw_addr_random(self->ndev);
331 #if defined(AQ_CFG_MAC_ADDR_PERMANENT)
333 static u8 mac_addr_permanent[] = AQ_CFG_MAC_ADDR_PERMANENT;
335 ether_addr_copy(self->ndev->dev_addr, mac_addr_permanent);
339 for (self->aq_vecs = 0; self->aq_vecs < aq_nic_get_cfg(self)->vecs;
341 self->aq_vec[self->aq_vecs] =
342 aq_vec_alloc(self, self->aq_vecs, aq_nic_get_cfg(self));
343 if (!self->aq_vec[self->aq_vecs]) {
349 netif_carrier_off(self->ndev);
351 netif_tx_disable(self->ndev);
353 err = register_netdev(self->ndev);
358 #if IS_ENABLED(CONFIG_MACSEC)
360 aq_macsec_free(self);
365 void aq_nic_ndev_init(struct aq_nic_s *self)
367 const struct aq_hw_caps_s *aq_hw_caps = self->aq_nic_cfg.aq_hw_caps;
368 struct aq_nic_cfg_s *aq_nic_cfg = &self->aq_nic_cfg;
370 self->ndev->hw_features |= aq_hw_caps->hw_features;
371 self->ndev->features = aq_hw_caps->hw_features;
372 self->ndev->vlan_features |= NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
373 NETIF_F_RXHASH | NETIF_F_SG |
374 NETIF_F_LRO | NETIF_F_TSO | NETIF_F_TSO6;
375 self->ndev->gso_partial_features = NETIF_F_GSO_UDP_L4;
376 self->ndev->priv_flags = aq_hw_caps->hw_priv_flags;
377 self->ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
379 self->msg_enable = NETIF_MSG_DRV | NETIF_MSG_LINK;
380 self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN;
381 self->ndev->max_mtu = aq_hw_caps->mtu - ETH_FCS_LEN - ETH_HLEN;
385 void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx,
386 struct aq_ring_s *ring)
388 self->aq_ring_tx[idx] = ring;
391 struct net_device *aq_nic_get_ndev(struct aq_nic_s *self)
396 int aq_nic_init(struct aq_nic_s *self)
398 struct aq_vec_s *aq_vec = NULL;
402 self->power_state = AQ_HW_POWER_STATE_D0;
403 mutex_lock(&self->fwreq_mutex);
404 err = self->aq_hw_ops->hw_reset(self->aq_hw);
405 mutex_unlock(&self->fwreq_mutex);
409 err = self->aq_hw_ops->hw_init(self->aq_hw,
410 aq_nic_get_ndev(self)->dev_addr);
414 if (ATL_HW_IS_CHIP_FEATURE(self->aq_hw, ATLANTIC) &&
415 self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_TP) {
416 self->aq_hw->phy_id = HW_ATL_PHY_ID_MAX;
417 err = aq_phy_init(self->aq_hw);
420 for (i = 0U; i < self->aq_vecs; i++) {
421 aq_vec = self->aq_vec[i];
422 err = aq_vec_ring_alloc(aq_vec, self, i,
423 aq_nic_get_cfg(self));
427 aq_vec_init(aq_vec, self->aq_hw_ops, self->aq_hw);
430 if (aq_nic_get_cfg(self)->is_ptp) {
431 err = aq_ptp_init(self, self->irqvecs - 1);
435 err = aq_ptp_ring_alloc(self);
439 err = aq_ptp_ring_init(self);
444 netif_carrier_off(self->ndev);
450 int aq_nic_start(struct aq_nic_s *self)
452 struct aq_vec_s *aq_vec = NULL;
453 struct aq_nic_cfg_s *cfg;
457 cfg = aq_nic_get_cfg(self);
459 err = self->aq_hw_ops->hw_multicast_list_set(self->aq_hw,
461 self->mc_list.count);
465 err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw,
466 self->packet_filter);
470 for (i = 0U, aq_vec = self->aq_vec[0];
471 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
472 err = aq_vec_start(aq_vec);
477 err = aq_ptp_ring_start(self);
481 aq_nic_set_loopback(self);
483 err = self->aq_hw_ops->hw_start(self->aq_hw);
487 err = aq_nic_update_interrupt_moderation_settings(self);
491 INIT_WORK(&self->service_task, aq_nic_service_task);
493 timer_setup(&self->service_timer, aq_nic_service_timer_cb, 0);
494 aq_nic_service_timer_cb(&self->service_timer);
496 if (cfg->is_polling) {
497 timer_setup(&self->polling_timer, aq_nic_polling_timer_cb, 0);
498 mod_timer(&self->polling_timer, jiffies +
499 AQ_CFG_POLLING_TIMER_INTERVAL);
501 for (i = 0U, aq_vec = self->aq_vec[0];
502 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
503 err = aq_pci_func_alloc_irq(self, i, self->ndev->name,
505 aq_vec_get_affinity_mask(aq_vec));
510 err = aq_ptp_irq_alloc(self);
514 if (cfg->link_irq_vec) {
515 int irqvec = pci_irq_vector(self->pdev,
517 err = request_threaded_irq(irqvec, NULL,
518 aq_linkstate_threaded_isr,
519 IRQF_SHARED | IRQF_ONESHOT,
520 self->ndev->name, self);
523 self->msix_entry_mask |= (1 << cfg->link_irq_vec);
526 err = self->aq_hw_ops->hw_irq_enable(self->aq_hw,
532 err = netif_set_real_num_tx_queues(self->ndev,
533 self->aq_vecs * cfg->tcs);
537 err = netif_set_real_num_rx_queues(self->ndev,
538 self->aq_vecs * cfg->tcs);
542 for (i = 0; i < cfg->tcs; i++) {
543 u16 offset = self->aq_vecs * i;
545 netdev_set_tc_queue(self->ndev, i, self->aq_vecs, offset);
547 netif_tx_start_all_queues(self->ndev);
553 unsigned int aq_nic_map_skb(struct aq_nic_s *self, struct sk_buff *skb,
554 struct aq_ring_s *ring)
556 unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
557 struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(self);
558 struct device *dev = aq_nic_get_dev(self);
559 struct aq_ring_buff_s *first = NULL;
560 u8 ipver = ip_hdr(skb)->version;
561 struct aq_ring_buff_s *dx_buff;
562 bool need_context_tag = false;
563 unsigned int frag_count = 0U;
564 unsigned int ret = 0U;
569 l4proto = ip_hdr(skb)->protocol;
571 l4proto = ipv6_hdr(skb)->nexthdr;
574 dx_buff = &ring->buff_ring[dx];
577 if (unlikely(skb_is_gso(skb))) {
578 dx_buff->mss = skb_shinfo(skb)->gso_size;
579 if (l4proto == IPPROTO_TCP) {
580 dx_buff->is_gso_tcp = 1U;
581 dx_buff->len_l4 = tcp_hdrlen(skb);
582 } else if (l4proto == IPPROTO_UDP) {
583 dx_buff->is_gso_udp = 1U;
584 dx_buff->len_l4 = sizeof(struct udphdr);
585 /* UDP GSO Hardware does not replace packet length. */
586 udp_hdr(skb)->len = htons(dx_buff->mss +
589 WARN_ONCE(true, "Bad GSO mode");
592 dx_buff->len_pkt = skb->len;
593 dx_buff->len_l2 = ETH_HLEN;
594 dx_buff->len_l3 = skb_network_header_len(skb);
595 dx_buff->eop_index = 0xffffU;
596 dx_buff->is_ipv6 = (ipver == 6);
597 need_context_tag = true;
600 if (cfg->is_vlan_tx_insert && skb_vlan_tag_present(skb)) {
601 dx_buff->vlan_tx_tag = skb_vlan_tag_get(skb);
602 dx_buff->len_pkt = skb->len;
603 dx_buff->is_vlan = 1U;
604 need_context_tag = true;
607 if (need_context_tag) {
608 dx = aq_ring_next_dx(ring, dx);
609 dx_buff = &ring->buff_ring[dx];
614 dx_buff->len = skb_headlen(skb);
615 dx_buff->pa = dma_map_single(dev,
620 if (unlikely(dma_mapping_error(dev, dx_buff->pa))) {
626 dx_buff->len_pkt = skb->len;
627 dx_buff->is_sop = 1U;
628 dx_buff->is_mapped = 1U;
631 if (skb->ip_summed == CHECKSUM_PARTIAL) {
632 dx_buff->is_ip_cso = (htons(ETH_P_IP) == skb->protocol);
633 dx_buff->is_tcp_cso = (l4proto == IPPROTO_TCP);
634 dx_buff->is_udp_cso = (l4proto == IPPROTO_UDP);
637 for (; nr_frags--; ++frag_count) {
638 unsigned int frag_len = 0U;
639 unsigned int buff_offset = 0U;
640 unsigned int buff_size = 0U;
642 skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count];
644 frag_len = skb_frag_size(frag);
647 if (frag_len > AQ_CFG_TX_FRAME_MAX)
648 buff_size = AQ_CFG_TX_FRAME_MAX;
650 buff_size = frag_len;
652 frag_pa = skb_frag_dma_map(dev,
658 if (unlikely(dma_mapping_error(dev,
662 dx = aq_ring_next_dx(ring, dx);
663 dx_buff = &ring->buff_ring[dx];
666 dx_buff->len = buff_size;
667 dx_buff->pa = frag_pa;
668 dx_buff->is_mapped = 1U;
669 dx_buff->eop_index = 0xffffU;
671 frag_len -= buff_size;
672 buff_offset += buff_size;
678 first->eop_index = dx;
679 dx_buff->is_eop = 1U;
684 for (dx = ring->sw_tail;
686 --ret, dx = aq_ring_next_dx(ring, dx)) {
687 dx_buff = &ring->buff_ring[dx];
689 if (!(dx_buff->is_gso_tcp || dx_buff->is_gso_udp) &&
690 !dx_buff->is_vlan && dx_buff->pa) {
691 if (unlikely(dx_buff->is_sop)) {
692 dma_unmap_single(dev,
709 int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
711 struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(self);
712 unsigned int vec = skb->queue_mapping % cfg->vecs;
713 unsigned int tc = skb->queue_mapping / cfg->vecs;
714 struct aq_ring_s *ring = NULL;
715 unsigned int frags = 0U;
716 int err = NETDEV_TX_OK;
718 frags = skb_shinfo(skb)->nr_frags + 1;
720 ring = self->aq_ring_tx[AQ_NIC_CFG_TCVEC2RING(cfg, tc, vec)];
722 if (frags > AQ_CFG_SKB_FRAGS_MAX) {
723 dev_kfree_skb_any(skb);
727 aq_ring_update_queue_state(ring);
729 if (cfg->priv_flags & BIT(AQ_HW_LOOPBACK_DMA_NET)) {
730 err = NETDEV_TX_BUSY;
734 /* Above status update may stop the queue. Check this. */
735 if (__netif_subqueue_stopped(self->ndev,
736 AQ_NIC_RING2QMAP(self, ring->idx))) {
737 err = NETDEV_TX_BUSY;
741 frags = aq_nic_map_skb(self, skb, ring);
744 err = self->aq_hw_ops->hw_ring_tx_xmit(self->aq_hw,
747 err = NETDEV_TX_BUSY;
754 int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self)
756 return self->aq_hw_ops->hw_interrupt_moderation_set(self->aq_hw);
759 int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags)
763 err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, flags);
767 self->packet_filter = flags;
773 int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev)
775 const struct aq_hw_ops *hw_ops = self->aq_hw_ops;
776 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
777 unsigned int packet_filter = ndev->flags;
778 struct netdev_hw_addr *ha = NULL;
782 self->mc_list.count = 0;
783 if (netdev_uc_count(ndev) > AQ_HW_MULTICAST_ADDRESS_MAX) {
784 packet_filter |= IFF_PROMISC;
786 netdev_for_each_uc_addr(ha, ndev) {
787 ether_addr_copy(self->mc_list.ar[i++], ha->addr);
791 cfg->is_mc_list_enabled = !!(packet_filter & IFF_MULTICAST);
792 if (cfg->is_mc_list_enabled) {
793 if (i + netdev_mc_count(ndev) > AQ_HW_MULTICAST_ADDRESS_MAX) {
794 packet_filter |= IFF_ALLMULTI;
796 netdev_for_each_mc_addr(ha, ndev) {
797 ether_addr_copy(self->mc_list.ar[i++],
803 if (i > 0 && i <= AQ_HW_MULTICAST_ADDRESS_MAX) {
804 self->mc_list.count = i;
805 err = hw_ops->hw_multicast_list_set(self->aq_hw,
807 self->mc_list.count);
812 return aq_nic_set_packet_filter(self, packet_filter);
815 int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu)
817 self->aq_nic_cfg.mtu = new_mtu;
822 int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev)
824 return self->aq_hw_ops->hw_set_mac_address(self->aq_hw, ndev->dev_addr);
827 unsigned int aq_nic_get_link_speed(struct aq_nic_s *self)
829 return self->link_status.mbps;
832 int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p)
837 if (unlikely(!self->aq_hw_ops->hw_get_regs))
842 err = self->aq_hw_ops->hw_get_regs(self->aq_hw,
843 self->aq_nic_cfg.aq_hw_caps,
852 int aq_nic_get_regs_count(struct aq_nic_s *self)
854 if (unlikely(!self->aq_hw_ops->hw_get_regs))
857 return self->aq_nic_cfg.aq_hw_caps->mac_regs_count;
860 u64 *aq_nic_get_stats(struct aq_nic_s *self, u64 *data)
862 struct aq_vec_s *aq_vec = NULL;
863 struct aq_stats_s *stats;
864 unsigned int count = 0U;
868 if (self->aq_fw_ops->update_stats) {
869 mutex_lock(&self->fwreq_mutex);
870 self->aq_fw_ops->update_stats(self->aq_hw);
871 mutex_unlock(&self->fwreq_mutex);
873 stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw);
878 data[i] = stats->uprc + stats->mprc + stats->bprc;
879 data[++i] = stats->uprc;
880 data[++i] = stats->mprc;
881 data[++i] = stats->bprc;
882 data[++i] = stats->erpt;
883 data[++i] = stats->uptc + stats->mptc + stats->bptc;
884 data[++i] = stats->uptc;
885 data[++i] = stats->mptc;
886 data[++i] = stats->bptc;
887 data[++i] = stats->ubrc;
888 data[++i] = stats->ubtc;
889 data[++i] = stats->mbrc;
890 data[++i] = stats->mbtc;
891 data[++i] = stats->bbrc;
892 data[++i] = stats->bbtc;
893 data[++i] = stats->ubrc + stats->mbrc + stats->bbrc;
894 data[++i] = stats->ubtc + stats->mbtc + stats->bbtc;
895 data[++i] = stats->dma_pkt_rc;
896 data[++i] = stats->dma_pkt_tc;
897 data[++i] = stats->dma_oct_rc;
898 data[++i] = stats->dma_oct_tc;
899 data[++i] = stats->dpc;
905 for (tc = 0U; tc < self->aq_nic_cfg.tcs; tc++) {
906 for (i = 0U, aq_vec = self->aq_vec[0];
907 aq_vec && self->aq_vecs > i;
908 ++i, aq_vec = self->aq_vec[i]) {
910 count = aq_vec_get_sw_stats(aq_vec, tc, data);
920 static void aq_nic_update_ndev_stats(struct aq_nic_s *self)
922 struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw);
923 struct net_device *ndev = self->ndev;
925 ndev->stats.rx_packets = stats->dma_pkt_rc;
926 ndev->stats.rx_bytes = stats->dma_oct_rc;
927 ndev->stats.rx_errors = stats->erpr;
928 ndev->stats.rx_dropped = stats->dpc;
929 ndev->stats.tx_packets = stats->dma_pkt_tc;
930 ndev->stats.tx_bytes = stats->dma_oct_tc;
931 ndev->stats.tx_errors = stats->erpt;
932 ndev->stats.multicast = stats->mprc;
935 void aq_nic_get_link_ksettings(struct aq_nic_s *self,
936 struct ethtool_link_ksettings *cmd)
938 u32 lp_link_speed_msk;
940 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
941 cmd->base.port = PORT_FIBRE;
943 cmd->base.port = PORT_TP;
945 cmd->base.duplex = DUPLEX_UNKNOWN;
946 if (self->link_status.mbps)
947 cmd->base.duplex = self->link_status.full_duplex ?
948 DUPLEX_FULL : DUPLEX_HALF;
949 cmd->base.autoneg = self->aq_nic_cfg.is_autoneg;
951 ethtool_link_ksettings_zero_link_mode(cmd, supported);
953 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_10G)
954 ethtool_link_ksettings_add_link_mode(cmd, supported,
957 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_5G)
958 ethtool_link_ksettings_add_link_mode(cmd, supported,
961 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_2G5)
962 ethtool_link_ksettings_add_link_mode(cmd, supported,
965 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_1G)
966 ethtool_link_ksettings_add_link_mode(cmd, supported,
969 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_1G_HALF)
970 ethtool_link_ksettings_add_link_mode(cmd, supported,
973 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_100M)
974 ethtool_link_ksettings_add_link_mode(cmd, supported,
977 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_100M_HALF)
978 ethtool_link_ksettings_add_link_mode(cmd, supported,
981 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_10M)
982 ethtool_link_ksettings_add_link_mode(cmd, supported,
985 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_10M_HALF)
986 ethtool_link_ksettings_add_link_mode(cmd, supported,
989 if (self->aq_nic_cfg.aq_hw_caps->flow_control) {
990 ethtool_link_ksettings_add_link_mode(cmd, supported,
992 ethtool_link_ksettings_add_link_mode(cmd, supported,
996 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
998 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
999 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
1001 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
1003 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1005 if (self->aq_nic_cfg.is_autoneg)
1006 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
1008 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10G)
1009 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1012 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_5G)
1013 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1016 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_2G5)
1017 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1020 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_1G)
1021 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1024 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_1G_HALF)
1025 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1028 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_100M)
1029 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1032 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_100M_HALF)
1033 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1036 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10M)
1037 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1040 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10M_HALF)
1041 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1044 if (self->aq_nic_cfg.fc.cur & AQ_NIC_FC_RX)
1045 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1048 /* Asym is when either RX or TX, but not both */
1049 if (!!(self->aq_nic_cfg.fc.cur & AQ_NIC_FC_TX) ^
1050 !!(self->aq_nic_cfg.fc.cur & AQ_NIC_FC_RX))
1051 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1054 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
1055 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
1057 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
1059 ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising);
1060 lp_link_speed_msk = self->aq_hw->aq_link_status.lp_link_speed_msk;
1062 if (lp_link_speed_msk & AQ_NIC_RATE_10G)
1063 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1066 if (lp_link_speed_msk & AQ_NIC_RATE_5G)
1067 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1070 if (lp_link_speed_msk & AQ_NIC_RATE_2G5)
1071 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1074 if (lp_link_speed_msk & AQ_NIC_RATE_1G)
1075 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1078 if (lp_link_speed_msk & AQ_NIC_RATE_1G_HALF)
1079 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1082 if (lp_link_speed_msk & AQ_NIC_RATE_100M)
1083 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1086 if (lp_link_speed_msk & AQ_NIC_RATE_100M_HALF)
1087 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1090 if (lp_link_speed_msk & AQ_NIC_RATE_10M)
1091 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1094 if (lp_link_speed_msk & AQ_NIC_RATE_10M_HALF)
1095 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1098 if (self->aq_hw->aq_link_status.lp_flow_control & AQ_NIC_FC_RX)
1099 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1101 if (!!(self->aq_hw->aq_link_status.lp_flow_control & AQ_NIC_FC_TX) ^
1102 !!(self->aq_hw->aq_link_status.lp_flow_control & AQ_NIC_FC_RX))
1103 ethtool_link_ksettings_add_link_mode(cmd, lp_advertising,
1107 int aq_nic_set_link_ksettings(struct aq_nic_s *self,
1108 const struct ethtool_link_ksettings *cmd)
1110 int fduplex = (cmd->base.duplex == DUPLEX_FULL);
1111 u32 speed = cmd->base.speed;
1115 if (!fduplex && speed > SPEED_1000) {
1120 if (cmd->base.autoneg == AUTONEG_ENABLE) {
1121 rate = self->aq_nic_cfg.aq_hw_caps->link_speed_msk;
1122 self->aq_nic_cfg.is_autoneg = true;
1126 rate = fduplex ? AQ_NIC_RATE_10M : AQ_NIC_RATE_10M_HALF;
1130 rate = fduplex ? AQ_NIC_RATE_100M
1131 : AQ_NIC_RATE_100M_HALF;
1135 rate = fduplex ? AQ_NIC_RATE_1G : AQ_NIC_RATE_1G_HALF;
1139 rate = AQ_NIC_RATE_2G5;
1143 rate = AQ_NIC_RATE_5G;
1147 rate = AQ_NIC_RATE_10G;
1155 if (!(self->aq_nic_cfg.aq_hw_caps->link_speed_msk & rate)) {
1160 self->aq_nic_cfg.is_autoneg = false;
1163 mutex_lock(&self->fwreq_mutex);
1164 err = self->aq_fw_ops->set_link_speed(self->aq_hw, rate);
1165 mutex_unlock(&self->fwreq_mutex);
1169 self->aq_nic_cfg.link_speed_msk = rate;
1175 struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self)
1177 return &self->aq_nic_cfg;
1180 u32 aq_nic_get_fw_version(struct aq_nic_s *self)
1182 return self->aq_hw_ops->hw_get_fw_version(self->aq_hw);
1185 int aq_nic_set_loopback(struct aq_nic_s *self)
1187 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
1189 if (!self->aq_hw_ops->hw_set_loopback ||
1190 !self->aq_fw_ops->set_phyloopback)
1193 mutex_lock(&self->fwreq_mutex);
1194 self->aq_hw_ops->hw_set_loopback(self->aq_hw,
1195 AQ_HW_LOOPBACK_DMA_SYS,
1196 !!(cfg->priv_flags &
1197 BIT(AQ_HW_LOOPBACK_DMA_SYS)));
1199 self->aq_hw_ops->hw_set_loopback(self->aq_hw,
1200 AQ_HW_LOOPBACK_PKT_SYS,
1201 !!(cfg->priv_flags &
1202 BIT(AQ_HW_LOOPBACK_PKT_SYS)));
1204 self->aq_hw_ops->hw_set_loopback(self->aq_hw,
1205 AQ_HW_LOOPBACK_DMA_NET,
1206 !!(cfg->priv_flags &
1207 BIT(AQ_HW_LOOPBACK_DMA_NET)));
1209 self->aq_fw_ops->set_phyloopback(self->aq_hw,
1210 AQ_HW_LOOPBACK_PHYINT_SYS,
1211 !!(cfg->priv_flags &
1212 BIT(AQ_HW_LOOPBACK_PHYINT_SYS)));
1214 self->aq_fw_ops->set_phyloopback(self->aq_hw,
1215 AQ_HW_LOOPBACK_PHYEXT_SYS,
1216 !!(cfg->priv_flags &
1217 BIT(AQ_HW_LOOPBACK_PHYEXT_SYS)));
1218 mutex_unlock(&self->fwreq_mutex);
1223 int aq_nic_stop(struct aq_nic_s *self)
1225 struct aq_vec_s *aq_vec = NULL;
1226 unsigned int i = 0U;
1228 netif_tx_disable(self->ndev);
1229 netif_carrier_off(self->ndev);
1231 del_timer_sync(&self->service_timer);
1232 cancel_work_sync(&self->service_task);
1234 self->aq_hw_ops->hw_irq_disable(self->aq_hw, AQ_CFG_IRQ_MASK);
1236 if (self->aq_nic_cfg.is_polling)
1237 del_timer_sync(&self->polling_timer);
1239 aq_pci_func_free_irqs(self);
1241 aq_ptp_irq_free(self);
1243 for (i = 0U, aq_vec = self->aq_vec[0];
1244 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
1245 aq_vec_stop(aq_vec);
1247 aq_ptp_ring_stop(self);
1249 return self->aq_hw_ops->hw_stop(self->aq_hw);
1252 void aq_nic_set_power(struct aq_nic_s *self)
1254 if (self->power_state != AQ_HW_POWER_STATE_D0 ||
1255 self->aq_hw->aq_nic_cfg->wol)
1256 if (likely(self->aq_fw_ops->set_power)) {
1257 mutex_lock(&self->fwreq_mutex);
1258 self->aq_fw_ops->set_power(self->aq_hw,
1260 self->ndev->dev_addr);
1261 mutex_unlock(&self->fwreq_mutex);
1265 void aq_nic_deinit(struct aq_nic_s *self, bool link_down)
1267 struct aq_vec_s *aq_vec = NULL;
1268 unsigned int i = 0U;
1273 for (i = 0U; i < self->aq_vecs; i++) {
1274 aq_vec = self->aq_vec[i];
1275 aq_vec_deinit(aq_vec);
1276 aq_vec_ring_free(aq_vec);
1279 aq_ptp_unregister(self);
1280 aq_ptp_ring_deinit(self);
1281 aq_ptp_ring_free(self);
1284 if (likely(self->aq_fw_ops->deinit) && link_down) {
1285 mutex_lock(&self->fwreq_mutex);
1286 self->aq_fw_ops->deinit(self->aq_hw);
1287 mutex_unlock(&self->fwreq_mutex);
1293 void aq_nic_free_vectors(struct aq_nic_s *self)
1295 unsigned int i = 0U;
1300 for (i = ARRAY_SIZE(self->aq_vec); i--;) {
1301 if (self->aq_vec[i]) {
1302 aq_vec_free(self->aq_vec[i]);
1303 self->aq_vec[i] = NULL;
1310 int aq_nic_realloc_vectors(struct aq_nic_s *self)
1312 struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(self);
1314 aq_nic_free_vectors(self);
1316 for (self->aq_vecs = 0; self->aq_vecs < cfg->vecs; self->aq_vecs++) {
1317 self->aq_vec[self->aq_vecs] = aq_vec_alloc(self, self->aq_vecs,
1319 if (unlikely(!self->aq_vec[self->aq_vecs]))
1326 void aq_nic_shutdown(struct aq_nic_s *self)
1335 netif_device_detach(self->ndev);
1337 if (netif_running(self->ndev)) {
1338 err = aq_nic_stop(self);
1342 aq_nic_deinit(self, !self->aq_hw->aq_nic_cfg->wol);
1343 aq_nic_set_power(self);
1349 u8 aq_nic_reserve_filter(struct aq_nic_s *self, enum aq_rx_filter_type type)
1356 case aq_rx_filter_ethertype:
1357 location = AQ_RX_LAST_LOC_FETHERT - AQ_RX_FIRST_LOC_FETHERT -
1358 self->aq_hw_rx_fltrs.fet_reserved_count;
1359 self->aq_hw_rx_fltrs.fet_reserved_count++;
1361 case aq_rx_filter_l3l4:
1362 fltr_cnt = AQ_RX_LAST_LOC_FL3L4 - AQ_RX_FIRST_LOC_FL3L4;
1363 n_bit = fltr_cnt - self->aq_hw_rx_fltrs.fl3l4.reserved_count;
1365 self->aq_hw_rx_fltrs.fl3l4.active_ipv4 |= BIT(n_bit);
1366 self->aq_hw_rx_fltrs.fl3l4.reserved_count++;
1376 void aq_nic_release_filter(struct aq_nic_s *self, enum aq_rx_filter_type type,
1380 case aq_rx_filter_ethertype:
1381 self->aq_hw_rx_fltrs.fet_reserved_count--;
1383 case aq_rx_filter_l3l4:
1384 self->aq_hw_rx_fltrs.fl3l4.reserved_count--;
1385 self->aq_hw_rx_fltrs.fl3l4.active_ipv4 &= ~BIT(location);
1392 int aq_nic_setup_tc_mqprio(struct aq_nic_s *self, u32 tcs, u8 *prio_tc_map)
1394 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
1395 const unsigned int prev_vecs = cfg->vecs;
1400 /* if already the same configuration or
1401 * disable request (tcs is 0) and we already is disabled
1403 if (tcs == cfg->tcs || (tcs == 0 && !cfg->is_qos))
1406 ndev_running = netif_running(self->ndev);
1408 dev_close(self->ndev);
1414 memcpy(cfg->prio_tc_map, prio_tc_map, sizeof(cfg->prio_tc_map));
1416 for (i = 0; i < sizeof(cfg->prio_tc_map); i++)
1417 cfg->prio_tc_map[i] = cfg->tcs * i / 8;
1419 cfg->is_qos = (tcs != 0 ? true : false);
1420 cfg->is_ptp = (cfg->tcs <= AQ_HW_PTP_TC);
1422 netdev_warn(self->ndev, "%s\n",
1423 "PTP is auto disabled due to requested TC count.");
1425 netdev_set_num_tc(self->ndev, cfg->tcs);
1427 /* Changing the number of TCs might change the number of vectors */
1428 aq_nic_cfg_update_num_vecs(self);
1429 if (prev_vecs != cfg->vecs) {
1430 err = aq_nic_realloc_vectors(self);
1436 err = dev_open(self->ndev, NULL);
1442 int aq_nic_setup_tc_max_rate(struct aq_nic_s *self, const unsigned int tc,
1445 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
1447 if (tc >= AQ_CFG_TCS_MAX)
1450 if (max_rate && max_rate < 10) {
1451 netdev_warn(self->ndev,
1452 "Setting %s to the minimum usable value of %dMbps.\n",
1454 cfg->tc_max_rate[tc] = 10;
1456 cfg->tc_max_rate[tc] = max_rate;
1462 int aq_nic_setup_tc_min_rate(struct aq_nic_s *self, const unsigned int tc,
1465 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
1467 if (tc >= AQ_CFG_TCS_MAX)
1471 set_bit(tc, &cfg->tc_min_rate_msk);
1473 clear_bit(tc, &cfg->tc_min_rate_msk);
1475 if (min_rate && min_rate < 20) {
1476 netdev_warn(self->ndev,
1477 "Setting %s to the minimum usable value of %dMbps.\n",
1479 cfg->tc_min_rate[tc] = 20;
1481 cfg->tc_min_rate[tc] = min_rate;