| /* |
| * aQuantia Corporation Network Driver |
| * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| */ |
| |
| /* File aq_nic.c: Definition of common code for NIC. */ |
| |
| #include "aq_nic.h" |
| #include "aq_ring.h" |
| #include "aq_vec.h" |
| #include "aq_hw.h" |
| #include "aq_pci_func.h" |
| |
| #include <linux/moduleparam.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/timer.h> |
| #include <linux/cpu.h> |
| #include <linux/ip.h> |
| #include <linux/tcp.h> |
| #include <net/ip.h> |
| |
| static unsigned int aq_itr = AQ_CFG_INTERRUPT_MODERATION_AUTO; |
| module_param_named(aq_itr, aq_itr, uint, 0644); |
| MODULE_PARM_DESC(aq_itr, "Interrupt throttling mode"); |
| |
| static unsigned int aq_itr_tx; |
| module_param_named(aq_itr_tx, aq_itr_tx, uint, 0644); |
| MODULE_PARM_DESC(aq_itr_tx, "TX interrupt throttle rate"); |
| |
| static unsigned int aq_itr_rx; |
| module_param_named(aq_itr_rx, aq_itr_rx, uint, 0644); |
| MODULE_PARM_DESC(aq_itr_rx, "RX interrupt throttle rate"); |
| |
| static void aq_nic_update_ndev_stats(struct aq_nic_s *self); |
| |
| static void aq_nic_rss_init(struct aq_nic_s *self, unsigned int num_rss_queues) |
| { |
| struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg; |
| struct aq_rss_parameters *rss_params = &cfg->aq_rss; |
| int i = 0; |
| |
| static u8 rss_key[AQ_CFG_RSS_HASHKEY_SIZE] = { |
| 0x1e, 0xad, 0x71, 0x87, 0x65, 0xfc, 0x26, 0x7d, |
| 0x0d, 0x45, 0x67, 0x74, 0xcd, 0x06, 0x1a, 0x18, |
| 0xb6, 0xc1, 0xf0, 0xc7, 0xbb, 0x18, 0xbe, 0xf8, |
| 0x19, 0x13, 0x4b, 0xa9, 0xd0, 0x3e, 0xfe, 0x70, |
| 0x25, 0x03, 0xab, 0x50, 0x6a, 0x8b, 0x82, 0x0c |
| }; |
| |
| rss_params->hash_secret_key_size = sizeof(rss_key); |
| memcpy(rss_params->hash_secret_key, rss_key, sizeof(rss_key)); |
| rss_params->indirection_table_size = AQ_CFG_RSS_INDIRECTION_TABLE_MAX; |
| |
| for (i = rss_params->indirection_table_size; i--;) |
| rss_params->indirection_table[i] = i & (num_rss_queues - 1); |
| } |
| |
| /* Checks hw_caps and 'corrects' aq_nic_cfg in runtime */ |
| void aq_nic_cfg_start(struct aq_nic_s *self) |
| { |
| struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg; |
| |
| cfg->tcs = AQ_CFG_TCS_DEF; |
| |
| cfg->is_polling = AQ_CFG_IS_POLLING_DEF; |
| |
| cfg->itr = aq_itr; |
| cfg->tx_itr = aq_itr_tx; |
| cfg->rx_itr = aq_itr_rx; |
| |
| cfg->is_rss = AQ_CFG_IS_RSS_DEF; |
| cfg->num_rss_queues = AQ_CFG_NUM_RSS_QUEUES_DEF; |
| cfg->aq_rss.base_cpu_number = AQ_CFG_RSS_BASE_CPU_NUM_DEF; |
| cfg->flow_control = AQ_CFG_FC_MODE; |
| |
| cfg->mtu = AQ_CFG_MTU_DEF; |
| cfg->link_speed_msk = AQ_CFG_SPEED_MSK; |
| cfg->is_autoneg = AQ_CFG_IS_AUTONEG_DEF; |
| |
| cfg->is_lro = AQ_CFG_IS_LRO_DEF; |
| |
| cfg->vlan_id = 0U; |
| |
| aq_nic_rss_init(self, cfg->num_rss_queues); |
| |
| /*descriptors */ |
| cfg->rxds = min(cfg->aq_hw_caps->rxds_max, AQ_CFG_RXDS_DEF); |
| cfg->txds = min(cfg->aq_hw_caps->txds_max, AQ_CFG_TXDS_DEF); |
| |
| /*rss rings */ |
| cfg->vecs = min(cfg->aq_hw_caps->vecs, AQ_CFG_VECS_DEF); |
| cfg->vecs = min(cfg->vecs, num_online_cpus()); |
| cfg->vecs = min(cfg->vecs, self->irqvecs); |
| /* cfg->vecs should be power of 2 for RSS */ |
| if (cfg->vecs >= 8U) |
| cfg->vecs = 8U; |
| else if (cfg->vecs >= 4U) |
| cfg->vecs = 4U; |
| else if (cfg->vecs >= 2U) |
| cfg->vecs = 2U; |
| else |
| cfg->vecs = 1U; |
| |
| cfg->num_rss_queues = min(cfg->vecs, AQ_CFG_NUM_RSS_QUEUES_DEF); |
| |
| cfg->irq_type = aq_pci_func_get_irq_type(self); |
| |
| if ((cfg->irq_type == AQ_HW_IRQ_LEGACY) || |
| (cfg->aq_hw_caps->vecs == 1U) || |
| (cfg->vecs == 1U)) { |
| cfg->is_rss = 0U; |
| cfg->vecs = 1U; |
| } |
| |
| cfg->link_speed_msk &= cfg->aq_hw_caps->link_speed_msk; |
| cfg->hw_features = cfg->aq_hw_caps->hw_features; |
| } |
| |
| static int aq_nic_update_link_status(struct aq_nic_s *self) |
| { |
| int err = self->aq_fw_ops->update_link_status(self->aq_hw); |
| |
| if (err) |
| return err; |
| |
| if (self->link_status.mbps != self->aq_hw->aq_link_status.mbps) { |
| pr_info("%s: link change old %d new %d\n", |
| AQ_CFG_DRV_NAME, self->link_status.mbps, |
| self->aq_hw->aq_link_status.mbps); |
| aq_nic_update_interrupt_moderation_settings(self); |
| } |
| |
| self->link_status = self->aq_hw->aq_link_status; |
| if (!netif_carrier_ok(self->ndev) && self->link_status.mbps) { |
| aq_utils_obj_set(&self->flags, |
| AQ_NIC_FLAG_STARTED); |
| aq_utils_obj_clear(&self->flags, |
| AQ_NIC_LINK_DOWN); |
| netif_carrier_on(self->ndev); |
| netif_tx_wake_all_queues(self->ndev); |
| } |
| if (netif_carrier_ok(self->ndev) && !self->link_status.mbps) { |
| netif_carrier_off(self->ndev); |
| netif_tx_disable(self->ndev); |
| aq_utils_obj_set(&self->flags, AQ_NIC_LINK_DOWN); |
| } |
| return 0; |
| } |
| |
| static void aq_nic_service_timer_cb(struct timer_list *t) |
| { |
| struct aq_nic_s *self = from_timer(self, t, service_timer); |
| int ctimer = AQ_CFG_SERVICE_TIMER_INTERVAL; |
| int err = 0; |
| |
| if (aq_utils_obj_test(&self->flags, AQ_NIC_FLAGS_IS_NOT_READY)) |
| goto err_exit; |
| |
| err = aq_nic_update_link_status(self); |
| if (err) |
| goto err_exit; |
| |
| if (self->aq_fw_ops->update_stats) |
| self->aq_fw_ops->update_stats(self->aq_hw); |
| |
| aq_nic_update_ndev_stats(self); |
| |
| /* If no link - use faster timer rate to detect link up asap */ |
| if (!netif_carrier_ok(self->ndev)) |
| ctimer = max(ctimer / 2, 1); |
| |
| err_exit: |
| mod_timer(&self->service_timer, jiffies + ctimer); |
| } |
| |
| static void aq_nic_polling_timer_cb(struct timer_list *t) |
| { |
| struct aq_nic_s *self = from_timer(self, t, polling_timer); |
| struct aq_vec_s *aq_vec = NULL; |
| unsigned int i = 0U; |
| |
| for (i = 0U, aq_vec = self->aq_vec[0]; |
| self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) |
| aq_vec_isr(i, (void *)aq_vec); |
| |
| mod_timer(&self->polling_timer, jiffies + |
| AQ_CFG_POLLING_TIMER_INTERVAL); |
| } |
| |
| int aq_nic_ndev_register(struct aq_nic_s *self) |
| { |
| int err = 0; |
| |
| if (!self->ndev) { |
| err = -EINVAL; |
| goto err_exit; |
| } |
| |
| err = hw_atl_utils_initfw(self->aq_hw, &self->aq_fw_ops); |
| if (err) |
| goto err_exit; |
| |
| err = self->aq_fw_ops->get_mac_permanent(self->aq_hw, |
| self->ndev->dev_addr); |
| if (err) |
| goto err_exit; |
| |
| #if defined(AQ_CFG_MAC_ADDR_PERMANENT) |
| { |
| static u8 mac_addr_permanent[] = AQ_CFG_MAC_ADDR_PERMANENT; |
| |
| ether_addr_copy(self->ndev->dev_addr, mac_addr_permanent); |
| } |
| #endif |
| |
| for (self->aq_vecs = 0; self->aq_vecs < aq_nic_get_cfg(self)->vecs; |
| self->aq_vecs++) { |
| self->aq_vec[self->aq_vecs] = |
| aq_vec_alloc(self, self->aq_vecs, aq_nic_get_cfg(self)); |
| if (!self->aq_vec[self->aq_vecs]) { |
| err = -ENOMEM; |
| goto err_exit; |
| } |
| } |
| |
| netif_carrier_off(self->ndev); |
| |
| netif_tx_disable(self->ndev); |
| |
| err = register_netdev(self->ndev); |
| if (err) |
| goto err_exit; |
| |
| err_exit: |
| return err; |
| } |
| |
| void aq_nic_ndev_init(struct aq_nic_s *self) |
| { |
| const struct aq_hw_caps_s *aq_hw_caps = self->aq_nic_cfg.aq_hw_caps; |
| struct aq_nic_cfg_s *aq_nic_cfg = &self->aq_nic_cfg; |
| |
| self->ndev->hw_features |= aq_hw_caps->hw_features; |
| self->ndev->features = aq_hw_caps->hw_features; |
| self->ndev->vlan_features |= NETIF_F_HW_CSUM | NETIF_F_RXCSUM | |
| NETIF_F_RXHASH | NETIF_F_SG | NETIF_F_LRO; |
| self->ndev->priv_flags = aq_hw_caps->hw_priv_flags; |
| self->ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; |
| |
| self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN; |
| self->ndev->max_mtu = aq_hw_caps->mtu - ETH_FCS_LEN - ETH_HLEN; |
| |
| } |
| |
| void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx, |
| struct aq_ring_s *ring) |
| { |
| self->aq_ring_tx[idx] = ring; |
| } |
| |
| struct net_device *aq_nic_get_ndev(struct aq_nic_s *self) |
| { |
| return self->ndev; |
| } |
| |
| int aq_nic_init(struct aq_nic_s *self) |
| { |
| struct aq_vec_s *aq_vec = NULL; |
| int err = 0; |
| unsigned int i = 0U; |
| |
| self->power_state = AQ_HW_POWER_STATE_D0; |
| err = self->aq_hw_ops->hw_reset(self->aq_hw); |
| if (err < 0) |
| goto err_exit; |
| |
| err = self->aq_hw_ops->hw_init(self->aq_hw, |
| aq_nic_get_ndev(self)->dev_addr); |
| if (err < 0) |
| goto err_exit; |
| |
| for (i = 0U, aq_vec = self->aq_vec[0]; |
| self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) |
| aq_vec_init(aq_vec, self->aq_hw_ops, self->aq_hw); |
| |
| netif_carrier_off(self->ndev); |
| |
| err_exit: |
| return err; |
| } |
| |
| int aq_nic_start(struct aq_nic_s *self) |
| { |
| struct aq_vec_s *aq_vec = NULL; |
| int err = 0; |
| unsigned int i = 0U; |
| |
| err = self->aq_hw_ops->hw_multicast_list_set(self->aq_hw, |
| self->mc_list.ar, |
| self->mc_list.count); |
| if (err < 0) |
| goto err_exit; |
| |
| err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, |
| self->packet_filter); |
| if (err < 0) |
| goto err_exit; |
| |
| for (i = 0U, aq_vec = self->aq_vec[0]; |
| self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { |
| err = aq_vec_start(aq_vec); |
| if (err < 0) |
| goto err_exit; |
| } |
| |
| err = self->aq_hw_ops->hw_start(self->aq_hw); |
| if (err < 0) |
| goto err_exit; |
| |
| err = aq_nic_update_interrupt_moderation_settings(self); |
| if (err) |
| goto err_exit; |
| timer_setup(&self->service_timer, aq_nic_service_timer_cb, 0); |
| mod_timer(&self->service_timer, jiffies + |
| AQ_CFG_SERVICE_TIMER_INTERVAL); |
| |
| if (self->aq_nic_cfg.is_polling) { |
| timer_setup(&self->polling_timer, aq_nic_polling_timer_cb, 0); |
| mod_timer(&self->polling_timer, jiffies + |
| AQ_CFG_POLLING_TIMER_INTERVAL); |
| } else { |
| for (i = 0U, aq_vec = self->aq_vec[0]; |
| self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { |
| err = aq_pci_func_alloc_irq(self, i, |
| self->ndev->name, aq_vec, |
| aq_vec_get_affinity_mask(aq_vec)); |
| if (err < 0) |
| goto err_exit; |
| } |
| |
| err = self->aq_hw_ops->hw_irq_enable(self->aq_hw, |
| AQ_CFG_IRQ_MASK); |
| if (err < 0) |
| goto err_exit; |
| } |
| |
| err = netif_set_real_num_tx_queues(self->ndev, self->aq_vecs); |
| if (err < 0) |
| goto err_exit; |
| |
| err = netif_set_real_num_rx_queues(self->ndev, self->aq_vecs); |
| if (err < 0) |
| goto err_exit; |
| |
| netif_tx_start_all_queues(self->ndev); |
| |
| err_exit: |
| return err; |
| } |
| |
| static unsigned int aq_nic_map_skb(struct aq_nic_s *self, |
| struct sk_buff *skb, |
| struct aq_ring_s *ring) |
| { |
| unsigned int ret = 0U; |
| unsigned int nr_frags = skb_shinfo(skb)->nr_frags; |
| unsigned int frag_count = 0U; |
| unsigned int dx = ring->sw_tail; |
| struct aq_ring_buff_s *first = NULL; |
| struct aq_ring_buff_s *dx_buff = &ring->buff_ring[dx]; |
| |
| if (unlikely(skb_is_gso(skb))) { |
| dx_buff->flags = 0U; |
| dx_buff->len_pkt = skb->len; |
| dx_buff->len_l2 = ETH_HLEN; |
| dx_buff->len_l3 = ip_hdrlen(skb); |
| dx_buff->len_l4 = tcp_hdrlen(skb); |
| dx_buff->mss = skb_shinfo(skb)->gso_size; |
| dx_buff->is_txc = 1U; |
| dx_buff->eop_index = 0xffffU; |
| |
| dx_buff->is_ipv6 = |
| (ip_hdr(skb)->version == 6) ? 1U : 0U; |
| |
| dx = aq_ring_next_dx(ring, dx); |
| dx_buff = &ring->buff_ring[dx]; |
| ++ret; |
| } |
| |
| dx_buff->flags = 0U; |
| dx_buff->len = skb_headlen(skb); |
| dx_buff->pa = dma_map_single(aq_nic_get_dev(self), |
| skb->data, |
| dx_buff->len, |
| DMA_TO_DEVICE); |
| |
| if (unlikely(dma_mapping_error(aq_nic_get_dev(self), dx_buff->pa))) { |
| ret = 0; |
| goto exit; |
| } |
| |
| first = dx_buff; |
| dx_buff->len_pkt = skb->len; |
| dx_buff->is_sop = 1U; |
| dx_buff->is_mapped = 1U; |
| ++ret; |
| |
| if (skb->ip_summed == CHECKSUM_PARTIAL) { |
| dx_buff->is_ip_cso = (htons(ETH_P_IP) == skb->protocol) ? |
| 1U : 0U; |
| |
| if (ip_hdr(skb)->version == 4) { |
| dx_buff->is_tcp_cso = |
| (ip_hdr(skb)->protocol == IPPROTO_TCP) ? |
| 1U : 0U; |
| dx_buff->is_udp_cso = |
| (ip_hdr(skb)->protocol == IPPROTO_UDP) ? |
| 1U : 0U; |
| } else if (ip_hdr(skb)->version == 6) { |
| dx_buff->is_tcp_cso = |
| (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP) ? |
| 1U : 0U; |
| dx_buff->is_udp_cso = |
| (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP) ? |
| 1U : 0U; |
| } |
| } |
| |
| for (; nr_frags--; ++frag_count) { |
| unsigned int frag_len = 0U; |
| unsigned int buff_offset = 0U; |
| unsigned int buff_size = 0U; |
| dma_addr_t frag_pa; |
| skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count]; |
| |
| frag_len = skb_frag_size(frag); |
| |
| while (frag_len) { |
| if (frag_len > AQ_CFG_TX_FRAME_MAX) |
| buff_size = AQ_CFG_TX_FRAME_MAX; |
| else |
| buff_size = frag_len; |
| |
| frag_pa = skb_frag_dma_map(aq_nic_get_dev(self), |
| frag, |
| buff_offset, |
| buff_size, |
| DMA_TO_DEVICE); |
| |
| if (unlikely(dma_mapping_error(aq_nic_get_dev(self), |
| frag_pa))) |
| goto mapping_error; |
| |
| dx = aq_ring_next_dx(ring, dx); |
| dx_buff = &ring->buff_ring[dx]; |
| |
| dx_buff->flags = 0U; |
| dx_buff->len = buff_size; |
| dx_buff->pa = frag_pa; |
| dx_buff->is_mapped = 1U; |
| dx_buff->eop_index = 0xffffU; |
| |
| frag_len -= buff_size; |
| buff_offset += buff_size; |
| |
| ++ret; |
| } |
| } |
| |
| first->eop_index = dx; |
| dx_buff->is_eop = 1U; |
| dx_buff->skb = skb; |
| goto exit; |
| |
| mapping_error: |
| for (dx = ring->sw_tail; |
| ret > 0; |
| --ret, dx = aq_ring_next_dx(ring, dx)) { |
| dx_buff = &ring->buff_ring[dx]; |
| |
| if (!dx_buff->is_txc && dx_buff->pa) { |
| if (unlikely(dx_buff->is_sop)) { |
| dma_unmap_single(aq_nic_get_dev(self), |
| dx_buff->pa, |
| dx_buff->len, |
| DMA_TO_DEVICE); |
| } else { |
| dma_unmap_page(aq_nic_get_dev(self), |
| dx_buff->pa, |
| dx_buff->len, |
| DMA_TO_DEVICE); |
| } |
| } |
| } |
| |
| exit: |
| return ret; |
| } |
| |
| int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb) |
| { |
| struct aq_ring_s *ring = NULL; |
| unsigned int frags = 0U; |
| unsigned int vec = skb->queue_mapping % self->aq_nic_cfg.vecs; |
| unsigned int tc = 0U; |
| int err = NETDEV_TX_OK; |
| |
| frags = skb_shinfo(skb)->nr_frags + 1; |
| |
| ring = self->aq_ring_tx[AQ_NIC_TCVEC2RING(self, tc, vec)]; |
| |
| if (frags > AQ_CFG_SKB_FRAGS_MAX) { |
| dev_kfree_skb_any(skb); |
| goto err_exit; |
| } |
| |
| aq_ring_update_queue_state(ring); |
| |
| /* Above status update may stop the queue. Check this. */ |
| if (__netif_subqueue_stopped(self->ndev, ring->idx)) { |
| err = NETDEV_TX_BUSY; |
| goto err_exit; |
| } |
| |
| frags = aq_nic_map_skb(self, skb, ring); |
| |
| if (likely(frags)) { |
| err = self->aq_hw_ops->hw_ring_tx_xmit(self->aq_hw, |
| ring, frags); |
| } else { |
| err = NETDEV_TX_BUSY; |
| } |
| |
| err_exit: |
| return err; |
| } |
| |
| int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self) |
| { |
| return self->aq_hw_ops->hw_interrupt_moderation_set(self->aq_hw); |
| } |
| |
| int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags) |
| { |
| int err = 0; |
| |
| err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, flags); |
| if (err < 0) |
| goto err_exit; |
| |
| self->packet_filter = flags; |
| |
| err_exit: |
| return err; |
| } |
| |
| int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev) |
| { |
| unsigned int packet_filter = self->packet_filter; |
| struct netdev_hw_addr *ha = NULL; |
| unsigned int i = 0U; |
| |
| self->mc_list.count = 0; |
| if (netdev_uc_count(ndev) > AQ_HW_MULTICAST_ADDRESS_MAX) { |
| packet_filter |= IFF_PROMISC; |
| } else { |
| netdev_for_each_uc_addr(ha, ndev) { |
| ether_addr_copy(self->mc_list.ar[i++], ha->addr); |
| |
| if (i >= AQ_HW_MULTICAST_ADDRESS_MAX) |
| break; |
| } |
| } |
| |
| if (i + netdev_mc_count(ndev) > AQ_HW_MULTICAST_ADDRESS_MAX) { |
| packet_filter |= IFF_ALLMULTI; |
| } else { |
| netdev_for_each_mc_addr(ha, ndev) { |
| ether_addr_copy(self->mc_list.ar[i++], ha->addr); |
| |
| if (i >= AQ_HW_MULTICAST_ADDRESS_MAX) |
| break; |
| } |
| } |
| |
| if (i > 0 && i <= AQ_HW_MULTICAST_ADDRESS_MAX) { |
| packet_filter |= IFF_MULTICAST; |
| self->mc_list.count = i; |
| self->aq_hw_ops->hw_multicast_list_set(self->aq_hw, |
| self->mc_list.ar, |
| self->mc_list.count); |
| } |
| return aq_nic_set_packet_filter(self, packet_filter); |
| } |
| |
| int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu) |
| { |
| self->aq_nic_cfg.mtu = new_mtu; |
| |
| return 0; |
| } |
| |
| int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev) |
| { |
| return self->aq_hw_ops->hw_set_mac_address(self->aq_hw, ndev->dev_addr); |
| } |
| |
| unsigned int aq_nic_get_link_speed(struct aq_nic_s *self) |
| { |
| return self->link_status.mbps; |
| } |
| |
| int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p) |
| { |
| u32 *regs_buff = p; |
| int err = 0; |
| |
| if (unlikely(!self->aq_hw_ops->hw_get_regs)) |
| return -EOPNOTSUPP; |
| |
| regs->version = 1; |
| |
| err = self->aq_hw_ops->hw_get_regs(self->aq_hw, |
| self->aq_nic_cfg.aq_hw_caps, |
| regs_buff); |
| if (err < 0) |
| goto err_exit; |
| |
| err_exit: |
| return err; |
| } |
| |
| int aq_nic_get_regs_count(struct aq_nic_s *self) |
| { |
| if (unlikely(!self->aq_hw_ops->hw_get_regs)) |
| return 0; |
| |
| return self->aq_nic_cfg.aq_hw_caps->mac_regs_count; |
| } |
| |
| void aq_nic_get_stats(struct aq_nic_s *self, u64 *data) |
| { |
| unsigned int i = 0U; |
| unsigned int count = 0U; |
| struct aq_vec_s *aq_vec = NULL; |
| struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw); |
| |
| if (!stats) |
| goto err_exit; |
| |
| data[i] = stats->uprc + stats->mprc + stats->bprc; |
| data[++i] = stats->uprc; |
| data[++i] = stats->mprc; |
| data[++i] = stats->bprc; |
| data[++i] = stats->erpt; |
| data[++i] = stats->uptc + stats->mptc + stats->bptc; |
| data[++i] = stats->uptc; |
| data[++i] = stats->mptc; |
| data[++i] = stats->bptc; |
| data[++i] = stats->ubrc; |
| data[++i] = stats->ubtc; |
| data[++i] = stats->mbrc; |
| data[++i] = stats->mbtc; |
| data[++i] = stats->bbrc; |
| data[++i] = stats->bbtc; |
| data[++i] = stats->ubrc + stats->mbrc + stats->bbrc; |
| data[++i] = stats->ubtc + stats->mbtc + stats->bbtc; |
| data[++i] = stats->dma_pkt_rc; |
| data[++i] = stats->dma_pkt_tc; |
| data[++i] = stats->dma_oct_rc; |
| data[++i] = stats->dma_oct_tc; |
| data[++i] = stats->dpc; |
| |
| i++; |
| |
| data += i; |
| |
| for (i = 0U, aq_vec = self->aq_vec[0]; |
| aq_vec && self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { |
| data += count; |
| aq_vec_get_sw_stats(aq_vec, data, &count); |
| } |
| |
| err_exit:; |
| } |
| |
| static void aq_nic_update_ndev_stats(struct aq_nic_s *self) |
| { |
| struct net_device *ndev = self->ndev; |
| struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw); |
| |
| ndev->stats.rx_packets = stats->uprc + stats->mprc + stats->bprc; |
| ndev->stats.rx_bytes = stats->ubrc + stats->mbrc + stats->bbrc; |
| ndev->stats.rx_errors = stats->erpr; |
| ndev->stats.tx_packets = stats->uptc + stats->mptc + stats->bptc; |
| ndev->stats.tx_bytes = stats->ubtc + stats->mbtc + stats->bbtc; |
| ndev->stats.tx_errors = stats->erpt; |
| ndev->stats.multicast = stats->mprc; |
| } |
| |
| void aq_nic_get_link_ksettings(struct aq_nic_s *self, |
| struct ethtool_link_ksettings *cmd) |
| { |
| if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) |
| cmd->base.port = PORT_FIBRE; |
| else |
| cmd->base.port = PORT_TP; |
| /* This driver supports only 10G capable adapters, so DUPLEX_FULL */ |
| cmd->base.duplex = DUPLEX_FULL; |
| cmd->base.autoneg = self->aq_nic_cfg.is_autoneg; |
| |
| ethtool_link_ksettings_zero_link_mode(cmd, supported); |
| |
| if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_10G) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, |
| 10000baseT_Full); |
| |
| if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_5G) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, |
| 5000baseT_Full); |
| |
| if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_2GS) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, |
| 2500baseT_Full); |
| |
| if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_1G) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, |
| 1000baseT_Full); |
| |
| if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_100M) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, |
| 100baseT_Full); |
| |
| if (self->aq_nic_cfg.aq_hw_caps->flow_control) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, |
| Pause); |
| |
| ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); |
| |
| if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) |
| ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); |
| else |
| ethtool_link_ksettings_add_link_mode(cmd, supported, TP); |
| |
| ethtool_link_ksettings_zero_link_mode(cmd, advertising); |
| |
| if (self->aq_nic_cfg.is_autoneg) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); |
| |
| if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10G) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, |
| 10000baseT_Full); |
| |
| if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_5G) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, |
| 5000baseT_Full); |
| |
| if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_2GS) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, |
| 2500baseT_Full); |
| |
| if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_1G) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, |
| 1000baseT_Full); |
| |
| if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_100M) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, |
| 100baseT_Full); |
| |
| if (self->aq_nic_cfg.flow_control & AQ_NIC_FC_RX) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, |
| Pause); |
| |
| if (self->aq_nic_cfg.flow_control & AQ_NIC_FC_TX) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, |
| Asym_Pause); |
| |
| if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); |
| else |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); |
| } |
| |
| int aq_nic_set_link_ksettings(struct aq_nic_s *self, |
| const struct ethtool_link_ksettings *cmd) |
| { |
| u32 speed = 0U; |
| u32 rate = 0U; |
| int err = 0; |
| |
| if (cmd->base.autoneg == AUTONEG_ENABLE) { |
| rate = self->aq_nic_cfg.aq_hw_caps->link_speed_msk; |
| self->aq_nic_cfg.is_autoneg = true; |
| } else { |
| speed = cmd->base.speed; |
| |
| switch (speed) { |
| case SPEED_100: |
| rate = AQ_NIC_RATE_100M; |
| break; |
| |
| case SPEED_1000: |
| rate = AQ_NIC_RATE_1G; |
| break; |
| |
| case SPEED_2500: |
| rate = AQ_NIC_RATE_2GS; |
| break; |
| |
| case SPEED_5000: |
| rate = AQ_NIC_RATE_5G; |
| break; |
| |
| case SPEED_10000: |
| rate = AQ_NIC_RATE_10G; |
| break; |
| |
| default: |
| err = -1; |
| goto err_exit; |
| } |
| if (!(self->aq_nic_cfg.aq_hw_caps->link_speed_msk & rate)) { |
| err = -1; |
| goto err_exit; |
| } |
| |
| self->aq_nic_cfg.is_autoneg = false; |
| } |
| |
| err = self->aq_fw_ops->set_link_speed(self->aq_hw, rate); |
| if (err < 0) |
| goto err_exit; |
| |
| self->aq_nic_cfg.link_speed_msk = rate; |
| |
| err_exit: |
| return err; |
| } |
| |
| struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self) |
| { |
| return &self->aq_nic_cfg; |
| } |
| |
| u32 aq_nic_get_fw_version(struct aq_nic_s *self) |
| { |
| u32 fw_version = 0U; |
| |
| self->aq_hw_ops->hw_get_fw_version(self->aq_hw, &fw_version); |
| |
| return fw_version; |
| } |
| |
| int aq_nic_stop(struct aq_nic_s *self) |
| { |
| struct aq_vec_s *aq_vec = NULL; |
| unsigned int i = 0U; |
| |
| netif_tx_disable(self->ndev); |
| netif_carrier_off(self->ndev); |
| |
| del_timer_sync(&self->service_timer); |
| |
| self->aq_hw_ops->hw_irq_disable(self->aq_hw, AQ_CFG_IRQ_MASK); |
| |
| if (self->aq_nic_cfg.is_polling) |
| del_timer_sync(&self->polling_timer); |
| else |
| aq_pci_func_free_irqs(self); |
| |
| for (i = 0U, aq_vec = self->aq_vec[0]; |
| self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) |
| aq_vec_stop(aq_vec); |
| |
| return self->aq_hw_ops->hw_stop(self->aq_hw); |
| } |
| |
| void aq_nic_deinit(struct aq_nic_s *self) |
| { |
| struct aq_vec_s *aq_vec = NULL; |
| unsigned int i = 0U; |
| |
| if (!self) |
| goto err_exit; |
| |
| for (i = 0U, aq_vec = self->aq_vec[0]; |
| self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) |
| aq_vec_deinit(aq_vec); |
| |
| if (self->power_state == AQ_HW_POWER_STATE_D0) { |
| (void)self->aq_fw_ops->deinit(self->aq_hw); |
| } else { |
| (void)self->aq_hw_ops->hw_set_power(self->aq_hw, |
| self->power_state); |
| } |
| |
| err_exit:; |
| } |
| |
| void aq_nic_free_vectors(struct aq_nic_s *self) |
| { |
| unsigned int i = 0U; |
| |
| if (!self) |
| goto err_exit; |
| |
| for (i = ARRAY_SIZE(self->aq_vec); i--;) { |
| if (self->aq_vec[i]) { |
| aq_vec_free(self->aq_vec[i]); |
| self->aq_vec[i] = NULL; |
| } |
| } |
| |
| err_exit:; |
| } |
| |
| int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg) |
| { |
| int err = 0; |
| |
| if (!netif_running(self->ndev)) { |
| err = 0; |
| goto out; |
| } |
| rtnl_lock(); |
| if (pm_msg->event & PM_EVENT_SLEEP || pm_msg->event & PM_EVENT_FREEZE) { |
| self->power_state = AQ_HW_POWER_STATE_D3; |
| netif_device_detach(self->ndev); |
| netif_tx_stop_all_queues(self->ndev); |
| |
| err = aq_nic_stop(self); |
| if (err < 0) |
| goto err_exit; |
| |
| aq_nic_deinit(self); |
| } else { |
| err = aq_nic_init(self); |
| if (err < 0) |
| goto err_exit; |
| |
| err = aq_nic_start(self); |
| if (err < 0) |
| goto err_exit; |
| |
| netif_device_attach(self->ndev); |
| netif_tx_start_all_queues(self->ndev); |
| } |
| |
| err_exit: |
| rtnl_unlock(); |
| out: |
| return err; |
| } |
| |
| void aq_nic_shutdown(struct aq_nic_s *self) |
| { |
| int err = 0; |
| |
| if (!self->ndev) |
| return; |
| |
| rtnl_lock(); |
| |
| netif_device_detach(self->ndev); |
| |
| if (netif_running(self->ndev)) { |
| err = aq_nic_stop(self); |
| if (err < 0) |
| goto err_exit; |
| } |
| aq_nic_deinit(self); |
| |
| err_exit: |
| rtnl_unlock(); |
| } |