| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Huawei HiNIC PCI Express Linux driver |
| * Copyright(c) 2017 Huawei Technologies Co., Ltd |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/pci.h> |
| #include <linux/device.h> |
| #include <linux/errno.h> |
| #include <linux/types.h> |
| #include <linux/etherdevice.h> |
| #include <linux/netdevice.h> |
| #include <linux/slab.h> |
| #include <linux/if_vlan.h> |
| #include <linux/semaphore.h> |
| #include <linux/workqueue.h> |
| #include <net/ip.h> |
| #include <net/devlink.h> |
| #include <linux/bitops.h> |
| #include <linux/bitmap.h> |
| #include <linux/delay.h> |
| #include <linux/err.h> |
| |
| #include "hinic_debugfs.h" |
| #include "hinic_hw_qp.h" |
| #include "hinic_hw_dev.h" |
| #include "hinic_devlink.h" |
| #include "hinic_port.h" |
| #include "hinic_tx.h" |
| #include "hinic_rx.h" |
| #include "hinic_dev.h" |
| #include "hinic_sriov.h" |
| |
| MODULE_AUTHOR("Huawei Technologies CO., Ltd"); |
| MODULE_DESCRIPTION("Huawei Intelligent NIC driver"); |
| MODULE_LICENSE("GPL"); |
| |
| static unsigned int tx_weight = 64; |
| module_param(tx_weight, uint, 0644); |
| MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)"); |
| |
| static unsigned int rx_weight = 64; |
| module_param(rx_weight, uint, 0644); |
| MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)"); |
| |
| #define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822 |
| #define HINIC_DEV_ID_DUAL_PORT_100GE 0x0200 |
| #define HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ 0x0205 |
| #define HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ 0x0210 |
| #define HINIC_DEV_ID_VF 0x375e |
| |
| #define HINIC_WQ_NAME "hinic_dev" |
| |
| #define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \ |
| NETIF_MSG_IFUP | \ |
| NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR) |
| |
| #define HINIC_LRO_MAX_WQE_NUM_DEFAULT 8 |
| |
| #define HINIC_LRO_RX_TIMER_DEFAULT 16 |
| |
| #define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8) |
| |
| #define work_to_rx_mode_work(work) \ |
| container_of(work, struct hinic_rx_mode_work, work) |
| |
| #define rx_mode_work_to_nic_dev(rx_mode_work) \ |
| container_of(rx_mode_work, struct hinic_dev, rx_mode_work) |
| |
| #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 |
| |
| #define HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT 2 |
| #define HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG 32 |
| #define HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG 7 |
| |
| static int change_mac_addr(struct net_device *netdev, const u8 *addr); |
| |
| static int set_features(struct hinic_dev *nic_dev, |
| netdev_features_t pre_features, |
| netdev_features_t features, bool force_change); |
| |
| static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq) |
| { |
| struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats; |
| struct hinic_rxq_stats rx_stats; |
| |
| u64_stats_init(&rx_stats.syncp); |
| |
| hinic_rxq_get_stats(rxq, &rx_stats); |
| |
| u64_stats_update_begin(&nic_rx_stats->syncp); |
| nic_rx_stats->bytes += rx_stats.bytes; |
| nic_rx_stats->pkts += rx_stats.pkts; |
| nic_rx_stats->errors += rx_stats.errors; |
| nic_rx_stats->csum_errors += rx_stats.csum_errors; |
| nic_rx_stats->other_errors += rx_stats.other_errors; |
| u64_stats_update_end(&nic_rx_stats->syncp); |
| |
| hinic_rxq_clean_stats(rxq); |
| } |
| |
| static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq) |
| { |
| struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats; |
| struct hinic_txq_stats tx_stats; |
| |
| u64_stats_init(&tx_stats.syncp); |
| |
| hinic_txq_get_stats(txq, &tx_stats); |
| |
| u64_stats_update_begin(&nic_tx_stats->syncp); |
| nic_tx_stats->bytes += tx_stats.bytes; |
| nic_tx_stats->pkts += tx_stats.pkts; |
| nic_tx_stats->tx_busy += tx_stats.tx_busy; |
| nic_tx_stats->tx_wake += tx_stats.tx_wake; |
| nic_tx_stats->tx_dropped += tx_stats.tx_dropped; |
| nic_tx_stats->big_frags_pkts += tx_stats.big_frags_pkts; |
| u64_stats_update_end(&nic_tx_stats->syncp); |
| |
| hinic_txq_clean_stats(txq); |
| } |
| |
| static void update_nic_stats(struct hinic_dev *nic_dev) |
| { |
| int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); |
| |
| for (i = 0; i < num_qps; i++) |
| update_rx_stats(nic_dev, &nic_dev->rxqs[i]); |
| |
| for (i = 0; i < num_qps; i++) |
| update_tx_stats(nic_dev, &nic_dev->txqs[i]); |
| } |
| |
| /** |
| * create_txqs - Create the Logical Tx Queues of specific NIC device |
| * @nic_dev: the specific NIC device |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int create_txqs(struct hinic_dev *nic_dev) |
| { |
| int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| struct net_device *netdev = nic_dev->netdev; |
| size_t txq_size; |
| |
| if (nic_dev->txqs) |
| return -EINVAL; |
| |
| txq_size = num_txqs * sizeof(*nic_dev->txqs); |
| nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL); |
| if (!nic_dev->txqs) |
| return -ENOMEM; |
| |
| hinic_sq_dbgfs_init(nic_dev); |
| |
| for (i = 0; i < num_txqs; i++) { |
| struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i); |
| |
| err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to init Txq\n"); |
| goto err_init_txq; |
| } |
| |
| err = hinic_sq_debug_add(nic_dev, i); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to add SQ%d debug\n", i); |
| goto err_add_sq_dbg; |
| } |
| } |
| |
| return 0; |
| |
| err_add_sq_dbg: |
| hinic_clean_txq(&nic_dev->txqs[i]); |
| err_init_txq: |
| for (j = 0; j < i; j++) { |
| hinic_sq_debug_rem(nic_dev->txqs[j].sq); |
| hinic_clean_txq(&nic_dev->txqs[j]); |
| } |
| |
| hinic_sq_dbgfs_uninit(nic_dev); |
| |
| devm_kfree(&netdev->dev, nic_dev->txqs); |
| return err; |
| } |
| |
| static void enable_txqs_napi(struct hinic_dev *nic_dev) |
| { |
| int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| int i; |
| |
| for (i = 0; i < num_txqs; i++) |
| napi_enable(&nic_dev->txqs[i].napi); |
| } |
| |
| static void disable_txqs_napi(struct hinic_dev *nic_dev) |
| { |
| int num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| int i; |
| |
| for (i = 0; i < num_txqs; i++) |
| napi_disable(&nic_dev->txqs[i].napi); |
| } |
| |
| /** |
| * free_txqs - Free the Logical Tx Queues of specific NIC device |
| * @nic_dev: the specific NIC device |
| **/ |
| static void free_txqs(struct hinic_dev *nic_dev) |
| { |
| int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| struct net_device *netdev = nic_dev->netdev; |
| |
| if (!nic_dev->txqs) |
| return; |
| |
| for (i = 0; i < num_txqs; i++) { |
| hinic_sq_debug_rem(nic_dev->txqs[i].sq); |
| hinic_clean_txq(&nic_dev->txqs[i]); |
| } |
| |
| hinic_sq_dbgfs_uninit(nic_dev); |
| |
| devm_kfree(&netdev->dev, nic_dev->txqs); |
| nic_dev->txqs = NULL; |
| } |
| |
| /** |
| * create_rxqs - Create the Logical Rx Queues of specific NIC device |
| * @nic_dev: the specific NIC device |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int create_rxqs(struct hinic_dev *nic_dev) |
| { |
| int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| struct net_device *netdev = nic_dev->netdev; |
| size_t rxq_size; |
| |
| if (nic_dev->rxqs) |
| return -EINVAL; |
| |
| rxq_size = num_rxqs * sizeof(*nic_dev->rxqs); |
| nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL); |
| if (!nic_dev->rxqs) |
| return -ENOMEM; |
| |
| hinic_rq_dbgfs_init(nic_dev); |
| |
| for (i = 0; i < num_rxqs; i++) { |
| struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i); |
| |
| err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to init rxq\n"); |
| goto err_init_rxq; |
| } |
| |
| err = hinic_rq_debug_add(nic_dev, i); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to add RQ%d debug\n", i); |
| goto err_add_rq_dbg; |
| } |
| } |
| |
| return 0; |
| |
| err_add_rq_dbg: |
| hinic_clean_rxq(&nic_dev->rxqs[i]); |
| err_init_rxq: |
| for (j = 0; j < i; j++) { |
| hinic_rq_debug_rem(nic_dev->rxqs[j].rq); |
| hinic_clean_rxq(&nic_dev->rxqs[j]); |
| } |
| |
| hinic_rq_dbgfs_uninit(nic_dev); |
| |
| devm_kfree(&netdev->dev, nic_dev->rxqs); |
| return err; |
| } |
| |
| /** |
| * free_rxqs - Free the Logical Rx Queues of specific NIC device |
| * @nic_dev: the specific NIC device |
| **/ |
| static void free_rxqs(struct hinic_dev *nic_dev) |
| { |
| int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| struct net_device *netdev = nic_dev->netdev; |
| |
| if (!nic_dev->rxqs) |
| return; |
| |
| for (i = 0; i < num_rxqs; i++) { |
| hinic_rq_debug_rem(nic_dev->rxqs[i].rq); |
| hinic_clean_rxq(&nic_dev->rxqs[i]); |
| } |
| |
| hinic_rq_dbgfs_uninit(nic_dev); |
| |
| devm_kfree(&netdev->dev, nic_dev->rxqs); |
| nic_dev->rxqs = NULL; |
| } |
| |
| static int hinic_configure_max_qnum(struct hinic_dev *nic_dev) |
| { |
| return hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps); |
| } |
| |
| static int hinic_rss_init(struct hinic_dev *nic_dev) |
| { |
| u8 default_rss_key[HINIC_RSS_KEY_SIZE]; |
| u8 tmpl_idx = nic_dev->rss_tmpl_idx; |
| u32 *indir_tbl; |
| int err, i; |
| |
| indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL); |
| if (!indir_tbl) |
| return -ENOMEM; |
| |
| netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key)); |
| for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++) |
| indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss); |
| |
| err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key); |
| if (err) |
| goto out; |
| |
| err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl); |
| if (err) |
| goto out; |
| |
| err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type); |
| if (err) |
| goto out; |
| |
| err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx, |
| nic_dev->rss_hash_engine); |
| if (err) |
| goto out; |
| |
| err = hinic_rss_cfg(nic_dev, 1, tmpl_idx); |
| if (err) |
| goto out; |
| |
| out: |
| kfree(indir_tbl); |
| return err; |
| } |
| |
| static void hinic_rss_deinit(struct hinic_dev *nic_dev) |
| { |
| hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx); |
| } |
| |
| static void hinic_init_rss_parameters(struct hinic_dev *nic_dev) |
| { |
| nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR; |
| nic_dev->rss_type.tcp_ipv6_ext = 1; |
| nic_dev->rss_type.ipv6_ext = 1; |
| nic_dev->rss_type.tcp_ipv6 = 1; |
| nic_dev->rss_type.ipv6 = 1; |
| nic_dev->rss_type.tcp_ipv4 = 1; |
| nic_dev->rss_type.ipv4 = 1; |
| nic_dev->rss_type.udp_ipv6 = 1; |
| nic_dev->rss_type.udp_ipv4 = 1; |
| } |
| |
| static void hinic_enable_rss(struct hinic_dev *nic_dev) |
| { |
| struct net_device *netdev = nic_dev->netdev; |
| struct hinic_hwdev *hwdev = nic_dev->hwdev; |
| struct hinic_hwif *hwif = hwdev->hwif; |
| struct pci_dev *pdev = hwif->pdev; |
| int i, node, err = 0; |
| u16 num_cpus = 0; |
| |
| if (nic_dev->max_qps <= 1) { |
| nic_dev->flags &= ~HINIC_RSS_ENABLE; |
| nic_dev->rss_limit = nic_dev->max_qps; |
| nic_dev->num_qps = nic_dev->max_qps; |
| nic_dev->num_rss = nic_dev->max_qps; |
| |
| return; |
| } |
| |
| err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to alloc tmpl_idx for rss, can't enable rss for this function\n"); |
| nic_dev->flags &= ~HINIC_RSS_ENABLE; |
| nic_dev->max_qps = 1; |
| nic_dev->rss_limit = nic_dev->max_qps; |
| nic_dev->num_qps = nic_dev->max_qps; |
| nic_dev->num_rss = nic_dev->max_qps; |
| |
| return; |
| } |
| |
| nic_dev->flags |= HINIC_RSS_ENABLE; |
| |
| for (i = 0; i < num_online_cpus(); i++) { |
| node = cpu_to_node(i); |
| if (node == dev_to_node(&pdev->dev)) |
| num_cpus++; |
| } |
| |
| if (!num_cpus) |
| num_cpus = num_online_cpus(); |
| |
| nic_dev->num_qps = hinic_hwdev_num_qps(hwdev); |
| nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus); |
| |
| nic_dev->rss_limit = nic_dev->num_qps; |
| nic_dev->num_rss = nic_dev->num_qps; |
| |
| hinic_init_rss_parameters(nic_dev); |
| err = hinic_rss_init(nic_dev); |
| if (err) |
| netif_err(nic_dev, drv, netdev, "Failed to init rss\n"); |
| } |
| |
| int hinic_open(struct net_device *netdev) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| enum hinic_port_link_state link_state; |
| int err, ret; |
| |
| if (!(nic_dev->flags & HINIC_INTF_UP)) { |
| err = hinic_hwdev_ifup(nic_dev->hwdev, nic_dev->sq_depth, |
| nic_dev->rq_depth); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed - HW interface up\n"); |
| return err; |
| } |
| } |
| |
| err = create_txqs(nic_dev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to create Tx queues\n"); |
| goto err_create_txqs; |
| } |
| |
| enable_txqs_napi(nic_dev); |
| |
| err = create_rxqs(nic_dev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to create Rx queues\n"); |
| goto err_create_rxqs; |
| } |
| |
| hinic_enable_rss(nic_dev); |
| |
| err = hinic_configure_max_qnum(nic_dev); |
| if (err) { |
| netif_err(nic_dev, drv, nic_dev->netdev, |
| "Failed to configure the maximum number of queues\n"); |
| goto err_port_state; |
| } |
| |
| netif_set_real_num_tx_queues(netdev, nic_dev->num_qps); |
| netif_set_real_num_rx_queues(netdev, nic_dev->num_qps); |
| |
| err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to set port state\n"); |
| goto err_port_state; |
| } |
| |
| err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to set func port state\n"); |
| goto err_func_port_state; |
| } |
| |
| down(&nic_dev->mgmt_lock); |
| |
| err = hinic_port_link_state(nic_dev, &link_state); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to get link state\n"); |
| goto err_port_link; |
| } |
| |
| if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) |
| hinic_notify_all_vfs_link_changed(nic_dev->hwdev, link_state); |
| |
| if (link_state == HINIC_LINK_STATE_UP) { |
| nic_dev->flags |= HINIC_LINK_UP; |
| nic_dev->cable_unplugged = false; |
| nic_dev->module_unrecognized = false; |
| } |
| |
| nic_dev->flags |= HINIC_INTF_UP; |
| |
| if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == |
| (HINIC_LINK_UP | HINIC_INTF_UP)) { |
| netif_info(nic_dev, drv, netdev, "link + intf UP\n"); |
| netif_carrier_on(netdev); |
| netif_tx_wake_all_queues(netdev); |
| } |
| |
| up(&nic_dev->mgmt_lock); |
| |
| netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n"); |
| return 0; |
| |
| err_port_link: |
| up(&nic_dev->mgmt_lock); |
| ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); |
| if (ret) |
| netif_warn(nic_dev, drv, netdev, |
| "Failed to revert func port state\n"); |
| |
| err_func_port_state: |
| ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); |
| if (ret) |
| netif_warn(nic_dev, drv, netdev, |
| "Failed to revert port state\n"); |
| err_port_state: |
| free_rxqs(nic_dev); |
| if (nic_dev->flags & HINIC_RSS_ENABLE) { |
| hinic_rss_deinit(nic_dev); |
| hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); |
| } |
| |
| err_create_rxqs: |
| disable_txqs_napi(nic_dev); |
| free_txqs(nic_dev); |
| |
| err_create_txqs: |
| if (!(nic_dev->flags & HINIC_INTF_UP)) |
| hinic_hwdev_ifdown(nic_dev->hwdev); |
| return err; |
| } |
| |
| int hinic_close(struct net_device *netdev) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| unsigned int flags; |
| |
| /* Disable txq napi firstly to aviod rewaking txq in free_tx_poll */ |
| disable_txqs_napi(nic_dev); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| flags = nic_dev->flags; |
| nic_dev->flags &= ~HINIC_INTF_UP; |
| |
| netif_carrier_off(netdev); |
| netif_tx_disable(netdev); |
| |
| update_nic_stats(nic_dev); |
| |
| up(&nic_dev->mgmt_lock); |
| |
| if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) |
| hinic_notify_all_vfs_link_changed(nic_dev->hwdev, 0); |
| |
| hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); |
| |
| hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); |
| |
| if (nic_dev->flags & HINIC_RSS_ENABLE) { |
| hinic_rss_deinit(nic_dev); |
| hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx); |
| } |
| |
| free_rxqs(nic_dev); |
| free_txqs(nic_dev); |
| |
| if (flags & HINIC_INTF_UP) |
| hinic_hwdev_ifdown(nic_dev->hwdev); |
| |
| netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n"); |
| return 0; |
| } |
| |
| static int hinic_change_mtu(struct net_device *netdev, int new_mtu) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| int err; |
| |
| netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu); |
| |
| err = hinic_port_set_mtu(nic_dev, new_mtu); |
| if (err) |
| netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); |
| else |
| netdev->mtu = new_mtu; |
| |
| return err; |
| } |
| |
| /** |
| * change_mac_addr - change the main mac address of network device |
| * @netdev: network device |
| * @addr: mac address to set |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int change_mac_addr(struct net_device *netdev, const u8 *addr) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| u16 vid = 0; |
| int err; |
| |
| if (!is_valid_ether_addr(addr)) |
| return -EADDRNOTAVAIL; |
| |
| netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n", |
| addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| do { |
| err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to delete mac\n"); |
| break; |
| } |
| |
| err = hinic_port_add_mac(nic_dev, addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); |
| break; |
| } |
| |
| vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); |
| } while (vid != VLAN_N_VID); |
| |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| static int hinic_set_mac_addr(struct net_device *netdev, void *addr) |
| { |
| unsigned char new_mac[ETH_ALEN]; |
| struct sockaddr *saddr = addr; |
| int err; |
| |
| memcpy(new_mac, saddr->sa_data, ETH_ALEN); |
| |
| err = change_mac_addr(netdev, new_mac); |
| if (!err) |
| memcpy(netdev->dev_addr, new_mac, ETH_ALEN); |
| |
| return err; |
| } |
| |
| /** |
| * add_mac_addr - add mac address to network device |
| * @netdev: network device |
| * @addr: mac address to add |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int add_mac_addr(struct net_device *netdev, const u8 *addr) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| u16 vid = 0; |
| int err; |
| |
| netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n", |
| addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| do { |
| err = hinic_port_add_mac(nic_dev, addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); |
| break; |
| } |
| |
| vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); |
| } while (vid != VLAN_N_VID); |
| |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| /** |
| * remove_mac_addr - remove mac address from network device |
| * @netdev: network device |
| * @addr: mac address to remove |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int remove_mac_addr(struct net_device *netdev, const u8 *addr) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| u16 vid = 0; |
| int err; |
| |
| if (!is_valid_ether_addr(addr)) |
| return -EADDRNOTAVAIL; |
| |
| netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n", |
| addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| do { |
| err = hinic_port_del_mac(nic_dev, addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to delete mac\n"); |
| break; |
| } |
| |
| vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); |
| } while (vid != VLAN_N_VID); |
| |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| static int hinic_vlan_rx_add_vid(struct net_device *netdev, |
| __always_unused __be16 proto, u16 vid) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| int ret, err; |
| |
| netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| err = hinic_port_add_vlan(nic_dev, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to add vlan\n"); |
| goto err_vlan_add; |
| } |
| |
| err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid); |
| if (err && err != HINIC_PF_SET_VF_ALREADY) { |
| netif_err(nic_dev, drv, netdev, "Failed to set mac\n"); |
| goto err_add_mac; |
| } |
| |
| bitmap_set(nic_dev->vlan_bitmap, vid, 1); |
| |
| up(&nic_dev->mgmt_lock); |
| return 0; |
| |
| err_add_mac: |
| ret = hinic_port_del_vlan(nic_dev, vid); |
| if (ret) |
| netif_err(nic_dev, drv, netdev, |
| "Failed to revert by removing vlan\n"); |
| |
| err_vlan_add: |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| static int hinic_vlan_rx_kill_vid(struct net_device *netdev, |
| __always_unused __be16 proto, u16 vid) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| int err; |
| |
| netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| err = hinic_port_del_vlan(nic_dev, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n"); |
| goto err_del_vlan; |
| } |
| |
| bitmap_clear(nic_dev->vlan_bitmap, vid, 1); |
| |
| up(&nic_dev->mgmt_lock); |
| return 0; |
| |
| err_del_vlan: |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| static void set_rx_mode(struct work_struct *work) |
| { |
| struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work); |
| struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work); |
| |
| hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode); |
| |
| __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); |
| __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); |
| } |
| |
| static void hinic_set_rx_mode(struct net_device *netdev) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| struct hinic_rx_mode_work *rx_mode_work; |
| u32 rx_mode; |
| |
| rx_mode_work = &nic_dev->rx_mode_work; |
| |
| rx_mode = HINIC_RX_MODE_UC | |
| HINIC_RX_MODE_MC | |
| HINIC_RX_MODE_BC; |
| |
| if (netdev->flags & IFF_PROMISC) { |
| if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) |
| rx_mode |= HINIC_RX_MODE_PROMISC; |
| } else if (netdev->flags & IFF_ALLMULTI) { |
| rx_mode |= HINIC_RX_MODE_MC_ALL; |
| } |
| |
| rx_mode_work->rx_mode = rx_mode; |
| |
| queue_work(nic_dev->workq, &rx_mode_work->work); |
| } |
| |
| static void hinic_tx_timeout(struct net_device *netdev, unsigned int txqueue) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| u16 sw_pi, hw_ci, sw_ci; |
| struct hinic_sq *sq; |
| u16 num_sqs, q_id; |
| |
| num_sqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| |
| netif_err(nic_dev, drv, netdev, "Tx timeout\n"); |
| |
| for (q_id = 0; q_id < num_sqs; q_id++) { |
| if (!netif_xmit_stopped(netdev_get_tx_queue(netdev, q_id))) |
| continue; |
| |
| sq = hinic_hwdev_get_sq(nic_dev->hwdev, q_id); |
| sw_pi = atomic_read(&sq->wq->prod_idx) & sq->wq->mask; |
| hw_ci = be16_to_cpu(*(u16 *)(sq->hw_ci_addr)) & sq->wq->mask; |
| sw_ci = atomic_read(&sq->wq->cons_idx) & sq->wq->mask; |
| netif_err(nic_dev, drv, netdev, "Txq%d: sw_pi: %d, hw_ci: %d, sw_ci: %d, napi->state: 0x%lx\n", |
| q_id, sw_pi, hw_ci, sw_ci, |
| nic_dev->txqs[q_id].napi.state); |
| } |
| } |
| |
| static void hinic_get_stats64(struct net_device *netdev, |
| struct rtnl_link_stats64 *stats) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| struct hinic_rxq_stats *nic_rx_stats; |
| struct hinic_txq_stats *nic_tx_stats; |
| |
| nic_rx_stats = &nic_dev->rx_stats; |
| nic_tx_stats = &nic_dev->tx_stats; |
| |
| down(&nic_dev->mgmt_lock); |
| |
| if (nic_dev->flags & HINIC_INTF_UP) |
| update_nic_stats(nic_dev); |
| |
| up(&nic_dev->mgmt_lock); |
| |
| stats->rx_bytes = nic_rx_stats->bytes; |
| stats->rx_packets = nic_rx_stats->pkts; |
| stats->rx_errors = nic_rx_stats->errors; |
| |
| stats->tx_bytes = nic_tx_stats->bytes; |
| stats->tx_packets = nic_tx_stats->pkts; |
| stats->tx_errors = nic_tx_stats->tx_dropped; |
| } |
| |
| static int hinic_set_features(struct net_device *netdev, |
| netdev_features_t features) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| |
| return set_features(nic_dev, nic_dev->netdev->features, |
| features, false); |
| } |
| |
| static netdev_features_t hinic_fix_features(struct net_device *netdev, |
| netdev_features_t features) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| |
| /* If Rx checksum is disabled, then LRO should also be disabled */ |
| if (!(features & NETIF_F_RXCSUM)) { |
| netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n"); |
| features &= ~NETIF_F_LRO; |
| } |
| |
| return features; |
| } |
| |
| static const struct net_device_ops hinic_netdev_ops = { |
| .ndo_open = hinic_open, |
| .ndo_stop = hinic_close, |
| .ndo_change_mtu = hinic_change_mtu, |
| .ndo_set_mac_address = hinic_set_mac_addr, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, |
| .ndo_set_rx_mode = hinic_set_rx_mode, |
| .ndo_start_xmit = hinic_xmit_frame, |
| .ndo_tx_timeout = hinic_tx_timeout, |
| .ndo_get_stats64 = hinic_get_stats64, |
| .ndo_fix_features = hinic_fix_features, |
| .ndo_set_features = hinic_set_features, |
| .ndo_set_vf_mac = hinic_ndo_set_vf_mac, |
| .ndo_set_vf_vlan = hinic_ndo_set_vf_vlan, |
| .ndo_get_vf_config = hinic_ndo_get_vf_config, |
| .ndo_set_vf_trust = hinic_ndo_set_vf_trust, |
| .ndo_set_vf_rate = hinic_ndo_set_vf_bw, |
| .ndo_set_vf_spoofchk = hinic_ndo_set_vf_spoofchk, |
| .ndo_set_vf_link_state = hinic_ndo_set_vf_link_state, |
| }; |
| |
| static const struct net_device_ops hinicvf_netdev_ops = { |
| .ndo_open = hinic_open, |
| .ndo_stop = hinic_close, |
| .ndo_change_mtu = hinic_change_mtu, |
| .ndo_set_mac_address = hinic_set_mac_addr, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, |
| .ndo_set_rx_mode = hinic_set_rx_mode, |
| .ndo_start_xmit = hinic_xmit_frame, |
| .ndo_tx_timeout = hinic_tx_timeout, |
| .ndo_get_stats64 = hinic_get_stats64, |
| .ndo_fix_features = hinic_fix_features, |
| .ndo_set_features = hinic_set_features, |
| }; |
| |
| static void netdev_features_init(struct net_device *netdev) |
| { |
| netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | |
| NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | |
| NETIF_F_RXCSUM | NETIF_F_LRO | |
| NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | |
| NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM; |
| |
| netdev->vlan_features = netdev->hw_features; |
| |
| netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; |
| |
| netdev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SCTP_CRC | |
| NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN | |
| NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_UDP_TUNNEL; |
| } |
| |
| static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev) |
| { |
| struct hinic_nic_cfg *nic_cfg = &nic_dev->hwdev->func_to_io.nic_cfg; |
| struct hinic_pause_config pause_info = {0}; |
| struct hinic_port_cap port_cap = {0}; |
| |
| if (hinic_port_get_cap(nic_dev, &port_cap)) |
| return; |
| |
| mutex_lock(&nic_cfg->cfg_mutex); |
| if (nic_cfg->pause_set || !port_cap.autoneg_state) { |
| nic_cfg->auto_neg = port_cap.autoneg_state; |
| pause_info.auto_neg = nic_cfg->auto_neg; |
| pause_info.rx_pause = nic_cfg->rx_pause; |
| pause_info.tx_pause = nic_cfg->tx_pause; |
| hinic_set_hw_pause_info(nic_dev->hwdev, &pause_info); |
| } |
| mutex_unlock(&nic_cfg->cfg_mutex); |
| } |
| |
| /** |
| * link_status_event_handler - link event handler |
| * @handle: nic device for the handler |
| * @buf_in: input buffer |
| * @in_size: input size |
| * @buf_out: output buffer |
| * @out_size: returned output size |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static void link_status_event_handler(void *handle, void *buf_in, u16 in_size, |
| void *buf_out, u16 *out_size) |
| { |
| struct hinic_port_link_status *link_status, *ret_link_status; |
| struct hinic_dev *nic_dev = handle; |
| |
| link_status = buf_in; |
| |
| if (link_status->link == HINIC_LINK_STATE_UP) { |
| down(&nic_dev->mgmt_lock); |
| |
| nic_dev->flags |= HINIC_LINK_UP; |
| nic_dev->cable_unplugged = false; |
| nic_dev->module_unrecognized = false; |
| |
| if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == |
| (HINIC_LINK_UP | HINIC_INTF_UP)) { |
| netif_carrier_on(nic_dev->netdev); |
| netif_tx_wake_all_queues(nic_dev->netdev); |
| } |
| |
| up(&nic_dev->mgmt_lock); |
| |
| if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) |
| hinic_refresh_nic_cfg(nic_dev); |
| |
| netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n"); |
| } else { |
| down(&nic_dev->mgmt_lock); |
| |
| nic_dev->flags &= ~HINIC_LINK_UP; |
| |
| netif_carrier_off(nic_dev->netdev); |
| netif_tx_disable(nic_dev->netdev); |
| |
| up(&nic_dev->mgmt_lock); |
| |
| netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n"); |
| } |
| |
| if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) |
| hinic_notify_all_vfs_link_changed(nic_dev->hwdev, |
| link_status->link); |
| |
| ret_link_status = buf_out; |
| ret_link_status->status = 0; |
| |
| *out_size = sizeof(*ret_link_status); |
| } |
| |
| static void cable_plug_event(void *handle, |
| void *buf_in, u16 in_size, |
| void *buf_out, u16 *out_size) |
| { |
| struct hinic_cable_plug_event *plug_event = buf_in; |
| struct hinic_dev *nic_dev = handle; |
| |
| nic_dev->cable_unplugged = plug_event->plugged ? false : true; |
| |
| *out_size = sizeof(*plug_event); |
| plug_event = buf_out; |
| plug_event->status = 0; |
| } |
| |
| static void link_err_event(void *handle, |
| void *buf_in, u16 in_size, |
| void *buf_out, u16 *out_size) |
| { |
| struct hinic_link_err_event *link_err = buf_in; |
| struct hinic_dev *nic_dev = handle; |
| |
| if (link_err->err_type >= LINK_ERR_NUM) |
| netif_info(nic_dev, link, nic_dev->netdev, |
| "Link failed, Unknown error type: 0x%x\n", |
| link_err->err_type); |
| else |
| nic_dev->module_unrecognized = true; |
| |
| *out_size = sizeof(*link_err); |
| link_err = buf_out; |
| link_err->status = 0; |
| } |
| |
| static int set_features(struct hinic_dev *nic_dev, |
| netdev_features_t pre_features, |
| netdev_features_t features, bool force_change) |
| { |
| netdev_features_t changed = force_change ? ~0 : pre_features ^ features; |
| u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN; |
| netdev_features_t failed_features = 0; |
| int ret = 0; |
| int err = 0; |
| |
| if (changed & NETIF_F_TSO) { |
| ret = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ? |
| HINIC_TSO_ENABLE : HINIC_TSO_DISABLE); |
| if (ret) { |
| err = ret; |
| failed_features |= NETIF_F_TSO; |
| } |
| } |
| |
| if (changed & NETIF_F_RXCSUM) { |
| ret = hinic_set_rx_csum_offload(nic_dev, csum_en); |
| if (ret) { |
| err = ret; |
| failed_features |= NETIF_F_RXCSUM; |
| } |
| } |
| |
| if (changed & NETIF_F_LRO) { |
| ret = hinic_set_rx_lro_state(nic_dev, |
| !!(features & NETIF_F_LRO), |
| HINIC_LRO_RX_TIMER_DEFAULT, |
| HINIC_LRO_MAX_WQE_NUM_DEFAULT); |
| if (ret) { |
| err = ret; |
| failed_features |= NETIF_F_LRO; |
| } |
| } |
| |
| if (changed & NETIF_F_HW_VLAN_CTAG_RX) { |
| ret = hinic_set_rx_vlan_offload(nic_dev, |
| !!(features & |
| NETIF_F_HW_VLAN_CTAG_RX)); |
| if (ret) { |
| err = ret; |
| failed_features |= NETIF_F_HW_VLAN_CTAG_RX; |
| } |
| } |
| |
| if (err) { |
| nic_dev->netdev->features = features ^ failed_features; |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| static int hinic_init_intr_coalesce(struct hinic_dev *nic_dev) |
| { |
| u64 size; |
| u16 i; |
| |
| size = sizeof(struct hinic_intr_coal_info) * nic_dev->max_qps; |
| nic_dev->rx_intr_coalesce = kzalloc(size, GFP_KERNEL); |
| if (!nic_dev->rx_intr_coalesce) |
| return -ENOMEM; |
| nic_dev->tx_intr_coalesce = kzalloc(size, GFP_KERNEL); |
| if (!nic_dev->tx_intr_coalesce) { |
| kfree(nic_dev->rx_intr_coalesce); |
| return -ENOMEM; |
| } |
| |
| for (i = 0; i < nic_dev->max_qps; i++) { |
| nic_dev->rx_intr_coalesce[i].pending_limt = |
| HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; |
| nic_dev->rx_intr_coalesce[i].coalesce_timer_cfg = |
| HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; |
| nic_dev->rx_intr_coalesce[i].resend_timer_cfg = |
| HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; |
| nic_dev->tx_intr_coalesce[i].pending_limt = |
| HINIC_DEAULT_TXRX_MSIX_PENDING_LIMIT; |
| nic_dev->tx_intr_coalesce[i].coalesce_timer_cfg = |
| HINIC_DEAULT_TXRX_MSIX_COALESC_TIMER_CFG; |
| nic_dev->tx_intr_coalesce[i].resend_timer_cfg = |
| HINIC_DEAULT_TXRX_MSIX_RESEND_TIMER_CFG; |
| } |
| |
| return 0; |
| } |
| |
| static void hinic_free_intr_coalesce(struct hinic_dev *nic_dev) |
| { |
| kfree(nic_dev->tx_intr_coalesce); |
| kfree(nic_dev->rx_intr_coalesce); |
| } |
| |
| /** |
| * nic_dev_init - Initialize the NIC device |
| * @pdev: the NIC pci device |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int nic_dev_init(struct pci_dev *pdev) |
| { |
| struct hinic_rx_mode_work *rx_mode_work; |
| struct hinic_txq_stats *tx_stats; |
| struct hinic_rxq_stats *rx_stats; |
| struct hinic_dev *nic_dev; |
| struct net_device *netdev; |
| struct hinic_hwdev *hwdev; |
| struct devlink *devlink; |
| int err, num_qps; |
| |
| devlink = hinic_devlink_alloc(&pdev->dev); |
| if (!devlink) { |
| dev_err(&pdev->dev, "Hinic devlink alloc failed\n"); |
| return -ENOMEM; |
| } |
| |
| hwdev = hinic_init_hwdev(pdev, devlink); |
| if (IS_ERR(hwdev)) { |
| dev_err(&pdev->dev, "Failed to initialize HW device\n"); |
| hinic_devlink_free(devlink); |
| return PTR_ERR(hwdev); |
| } |
| |
| num_qps = hinic_hwdev_num_qps(hwdev); |
| if (num_qps <= 0) { |
| dev_err(&pdev->dev, "Invalid number of QPS\n"); |
| err = -EINVAL; |
| goto err_num_qps; |
| } |
| |
| netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps); |
| if (!netdev) { |
| dev_err(&pdev->dev, "Failed to allocate Ethernet device\n"); |
| err = -ENOMEM; |
| goto err_alloc_etherdev; |
| } |
| |
| if (!HINIC_IS_VF(hwdev->hwif)) |
| netdev->netdev_ops = &hinic_netdev_ops; |
| else |
| netdev->netdev_ops = &hinicvf_netdev_ops; |
| |
| netdev->max_mtu = ETH_MAX_MTU; |
| |
| nic_dev = netdev_priv(netdev); |
| nic_dev->netdev = netdev; |
| nic_dev->hwdev = hwdev; |
| nic_dev->msg_enable = MSG_ENABLE_DEFAULT; |
| nic_dev->flags = 0; |
| nic_dev->txqs = NULL; |
| nic_dev->rxqs = NULL; |
| nic_dev->tx_weight = tx_weight; |
| nic_dev->rx_weight = rx_weight; |
| nic_dev->sq_depth = HINIC_SQ_DEPTH; |
| nic_dev->rq_depth = HINIC_RQ_DEPTH; |
| nic_dev->sriov_info.hwdev = hwdev; |
| nic_dev->sriov_info.pdev = pdev; |
| nic_dev->max_qps = num_qps; |
| nic_dev->devlink = devlink; |
| |
| hinic_set_ethtool_ops(netdev); |
| |
| sema_init(&nic_dev->mgmt_lock, 1); |
| |
| tx_stats = &nic_dev->tx_stats; |
| rx_stats = &nic_dev->rx_stats; |
| |
| u64_stats_init(&tx_stats->syncp); |
| u64_stats_init(&rx_stats->syncp); |
| |
| nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev, |
| VLAN_BITMAP_SIZE(nic_dev), |
| GFP_KERNEL); |
| if (!nic_dev->vlan_bitmap) { |
| err = -ENOMEM; |
| goto err_vlan_bitmap; |
| } |
| |
| nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME); |
| if (!nic_dev->workq) { |
| err = -ENOMEM; |
| goto err_workq; |
| } |
| |
| pci_set_drvdata(pdev, netdev); |
| |
| err = hinic_port_get_mac(nic_dev, netdev->dev_addr); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to get mac address\n"); |
| goto err_get_mac; |
| } |
| |
| if (!is_valid_ether_addr(netdev->dev_addr)) { |
| if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { |
| dev_err(&pdev->dev, "Invalid MAC address\n"); |
| err = -EIO; |
| goto err_add_mac; |
| } |
| |
| dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", |
| netdev->dev_addr); |
| eth_hw_addr_random(netdev); |
| } |
| |
| err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0); |
| if (err && err != HINIC_PF_SET_VF_ALREADY) { |
| dev_err(&pdev->dev, "Failed to add mac\n"); |
| goto err_add_mac; |
| } |
| |
| err = hinic_port_set_mtu(nic_dev, netdev->mtu); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to set mtu\n"); |
| goto err_set_mtu; |
| } |
| |
| rx_mode_work = &nic_dev->rx_mode_work; |
| INIT_WORK(&rx_mode_work->work, set_rx_mode); |
| |
| netdev_features_init(netdev); |
| |
| netif_carrier_off(netdev); |
| |
| hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS, |
| nic_dev, link_status_event_handler); |
| hinic_hwdev_cb_register(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT, |
| nic_dev, cable_plug_event); |
| hinic_hwdev_cb_register(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT, |
| nic_dev, link_err_event); |
| |
| err = set_features(nic_dev, 0, nic_dev->netdev->features, true); |
| if (err) |
| goto err_set_features; |
| |
| /* enable pause and disable pfc by default */ |
| err = hinic_dcb_set_pfc(nic_dev->hwdev, 0, 0); |
| if (err) |
| goto err_set_pfc; |
| |
| SET_NETDEV_DEV(netdev, &pdev->dev); |
| |
| err = hinic_init_intr_coalesce(nic_dev); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to init_intr_coalesce\n"); |
| goto err_init_intr; |
| } |
| |
| hinic_dbg_init(nic_dev); |
| |
| hinic_func_tbl_dbgfs_init(nic_dev); |
| |
| err = hinic_func_table_debug_add(nic_dev); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to add func_table debug\n"); |
| goto err_add_func_table_dbg; |
| } |
| |
| err = register_netdev(netdev); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to register netdev\n"); |
| goto err_reg_netdev; |
| } |
| |
| return 0; |
| |
| err_reg_netdev: |
| hinic_func_table_debug_rem(nic_dev); |
| err_add_func_table_dbg: |
| hinic_func_tbl_dbgfs_uninit(nic_dev); |
| hinic_dbg_uninit(nic_dev); |
| hinic_free_intr_coalesce(nic_dev); |
| err_init_intr: |
| err_set_pfc: |
| err_set_features: |
| hinic_hwdev_cb_unregister(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); |
| hinic_hwdev_cb_unregister(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); |
| hinic_hwdev_cb_unregister(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_LINK_STATUS); |
| cancel_work_sync(&rx_mode_work->work); |
| |
| err_set_mtu: |
| hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); |
| err_add_mac: |
| err_get_mac: |
| pci_set_drvdata(pdev, NULL); |
| destroy_workqueue(nic_dev->workq); |
| err_workq: |
| err_vlan_bitmap: |
| free_netdev(netdev); |
| |
| err_alloc_etherdev: |
| err_num_qps: |
| hinic_free_hwdev(hwdev); |
| hinic_devlink_free(devlink); |
| return err; |
| } |
| |
| static int hinic_probe(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| int err = pci_enable_device(pdev); |
| |
| if (err) { |
| dev_err(&pdev->dev, "Failed to enable PCI device\n"); |
| return err; |
| } |
| |
| err = pci_request_regions(pdev, HINIC_DRV_NAME); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to request PCI regions\n"); |
| goto err_pci_regions; |
| } |
| |
| pci_set_master(pdev); |
| |
| err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
| if (err) { |
| dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n"); |
| err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to set DMA mask\n"); |
| goto err_dma_mask; |
| } |
| } |
| |
| err = nic_dev_init(pdev); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to initialize NIC device\n"); |
| goto err_nic_dev_init; |
| } |
| |
| dev_info(&pdev->dev, "HiNIC driver - probed\n"); |
| return 0; |
| |
| err_nic_dev_init: |
| err_dma_mask: |
| pci_release_regions(pdev); |
| |
| err_pci_regions: |
| pci_disable_device(pdev); |
| return err; |
| } |
| |
| #define HINIC_WAIT_SRIOV_CFG_TIMEOUT 15000 |
| |
| static void wait_sriov_cfg_complete(struct hinic_dev *nic_dev) |
| { |
| struct hinic_sriov_info *sriov_info = &nic_dev->sriov_info; |
| u32 loop_cnt = 0; |
| |
| set_bit(HINIC_FUNC_REMOVE, &sriov_info->state); |
| usleep_range(9900, 10000); |
| |
| while (loop_cnt < HINIC_WAIT_SRIOV_CFG_TIMEOUT) { |
| if (!test_bit(HINIC_SRIOV_ENABLE, &sriov_info->state) && |
| !test_bit(HINIC_SRIOV_DISABLE, &sriov_info->state)) |
| return; |
| |
| usleep_range(9900, 10000); |
| loop_cnt++; |
| } |
| } |
| |
| static void hinic_remove(struct pci_dev *pdev) |
| { |
| struct net_device *netdev = pci_get_drvdata(pdev); |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| struct devlink *devlink = nic_dev->devlink; |
| struct hinic_rx_mode_work *rx_mode_work; |
| |
| if (!HINIC_IS_VF(nic_dev->hwdev->hwif)) { |
| wait_sriov_cfg_complete(nic_dev); |
| hinic_pci_sriov_disable(pdev); |
| } |
| |
| unregister_netdev(netdev); |
| |
| hinic_func_table_debug_rem(nic_dev); |
| |
| hinic_func_tbl_dbgfs_uninit(nic_dev); |
| |
| hinic_dbg_uninit(nic_dev); |
| |
| hinic_free_intr_coalesce(nic_dev); |
| |
| hinic_port_del_mac(nic_dev, netdev->dev_addr, 0); |
| |
| hinic_hwdev_cb_unregister(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_LINK_ERR_EVENT); |
| hinic_hwdev_cb_unregister(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_CABLE_PLUG_EVENT); |
| hinic_hwdev_cb_unregister(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_LINK_STATUS); |
| |
| rx_mode_work = &nic_dev->rx_mode_work; |
| cancel_work_sync(&rx_mode_work->work); |
| |
| pci_set_drvdata(pdev, NULL); |
| |
| destroy_workqueue(nic_dev->workq); |
| |
| hinic_free_hwdev(nic_dev->hwdev); |
| |
| free_netdev(netdev); |
| |
| hinic_devlink_free(devlink); |
| |
| pci_release_regions(pdev); |
| pci_disable_device(pdev); |
| |
| dev_info(&pdev->dev, "HiNIC driver - removed\n"); |
| } |
| |
| static void hinic_shutdown(struct pci_dev *pdev) |
| { |
| pci_disable_device(pdev); |
| } |
| |
| static const struct pci_device_id hinic_pci_table[] = { |
| { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0}, |
| { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0}, |
| { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0}, |
| { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0}, |
| { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_VF), 0}, |
| { 0, 0} |
| }; |
| MODULE_DEVICE_TABLE(pci, hinic_pci_table); |
| |
| static struct pci_driver hinic_driver = { |
| .name = HINIC_DRV_NAME, |
| .id_table = hinic_pci_table, |
| .probe = hinic_probe, |
| .remove = hinic_remove, |
| .shutdown = hinic_shutdown, |
| .sriov_configure = hinic_pci_sriov_configure, |
| }; |
| |
| static int __init hinic_module_init(void) |
| { |
| hinic_dbg_register_debugfs(HINIC_DRV_NAME); |
| return pci_register_driver(&hinic_driver); |
| } |
| |
| static void __exit hinic_module_exit(void) |
| { |
| pci_unregister_driver(&hinic_driver); |
| hinic_dbg_unregister_debugfs(); |
| } |
| |
| module_init(hinic_module_init); |
| module_exit(hinic_module_exit); |