diff options
author | Xue Chaojing <xuechaojing@huawei.com> | 2019-06-18 09:20:51 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2019-06-19 04:52:27 +0300 |
commit | 421e9526288b6ec241b46153493884277cbb533f (patch) | |
tree | 9927d167d971dd3eefef1845c899f4c2920c9e5d /drivers/net/ethernet/huawei/hinic/hinic_main.c | |
parent | 760f1dc29580220c5949d22cc4937e3e44eacac1 (diff) | |
download | linux-421e9526288b6ec241b46153493884277cbb533f.tar.xz |
hinic: add rss support
This patch adds rss support for the HINIC driver.
Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/huawei/hinic/hinic_main.c')
-rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_main.c | 126 |
1 files changed, 121 insertions, 5 deletions
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c index af49ef32ad5c..c93366e669f4 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_main.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c @@ -382,11 +382,118 @@ static int hinic_configure_max_qnum(struct hinic_dev *nic_dev) return 0; } +static int hinic_rss_init(struct hinic_dev *nic_dev) +{ + u32 indir_tbl[HINIC_RSS_INDIR_SIZE] = { 0 }; + u8 default_rss_key[HINIC_RSS_KEY_SIZE]; + u8 tmpl_idx = nic_dev->rss_tmpl_idx; + int err, i; + + 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) + return err; + + err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl); + if (err) + return err; + + err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type); + if (err) + return err; + + err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx, + nic_dev->rss_hash_engine); + if (err) + return err; + + err = hinic_rss_cfg(nic_dev, 1, tmpl_idx); + if (err) + return err; + + return 0; +} + +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; + + nic_dev->max_qps = hinic_hwdev_max_num_qps(hwdev); + 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 = min_t(u16, nic_dev->max_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"); +} + static 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, num_qps; + int err, ret; if (!(nic_dev->flags & HINIC_INTF_UP)) { err = hinic_hwdev_ifup(nic_dev->hwdev); @@ -411,6 +518,8 @@ static int hinic_open(struct net_device *netdev) 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, @@ -418,9 +527,8 @@ static int hinic_open(struct net_device *netdev) goto err_port_state; } - num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); - netif_set_real_num_tx_queues(netdev, num_qps); - netif_set_real_num_rx_queues(netdev, num_qps); + 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) { @@ -476,9 +584,12 @@ err_func_port_state: 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: free_txqs(nic_dev); @@ -522,6 +633,11 @@ static int hinic_close(struct net_device *netdev) return err; } + 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); |