Link information is retrieved using ethtool ioctls. Signed-off-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com> Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com> --- drivers/net/mlx5/mlx5.c | 1 + drivers/net/mlx5/mlx5.h | 1 + drivers/net/mlx5/mlx5_ethdev.c | 71 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 73 insertions(+)
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index ee63bdf..5ed828d 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -137,6 +137,7 @@ static const struct eth_dev_ops mlx5_dev_ops = { .promiscuous_disable = mlx5_promiscuous_disable, .allmulticast_enable = mlx5_allmulticast_enable, .allmulticast_disable = mlx5_allmulticast_disable, + .link_update = mlx5_link_update, .stats_get = mlx5_stats_get, .stats_reset = mlx5_stats_reset, .dev_infos_get = mlx5_dev_infos_get, diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index 56da43c..1a18326 100644 --- a/drivers/net/mlx5/mlx5.h +++ b/drivers/net/mlx5/mlx5.h @@ -164,6 +164,7 @@ int priv_get_mtu(struct priv *, uint16_t *); int priv_set_flags(struct priv *, unsigned int, unsigned int); int mlx5_dev_configure(struct rte_eth_dev *); void mlx5_dev_infos_get(struct rte_eth_dev *, struct rte_eth_dev_info *); +int mlx5_link_update(struct rte_eth_dev *, int); int mlx5_dev_set_mtu(struct rte_eth_dev *, uint16_t); int mlx5_ibv_device_to_pci_addr(const struct ibv_device *, struct rte_pci_addr *); diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c index 26b6d73..d01dee5 100644 --- a/drivers/net/mlx5/mlx5_ethdev.c +++ b/drivers/net/mlx5/mlx5_ethdev.c @@ -45,6 +45,8 @@ #include <sys/socket.h> #include <netinet/in.h> #include <linux/if.h> +#include <linux/ethtool.h> +#include <linux/sockios.h> /* DPDK headers don't like -pedantic. */ #ifdef PEDANTIC @@ -535,6 +537,75 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) } /** + * DPDK callback to retrieve physical link information (unlocked version). + * + * @param dev + * Pointer to Ethernet device structure. + * @param wait_to_complete + * Wait for request completion (ignored). + */ +static int +mlx5_link_update_unlocked(struct rte_eth_dev *dev, int wait_to_complete) +{ + struct priv *priv = dev->data->dev_private; + struct ethtool_cmd edata = { + .cmd = ETHTOOL_GSET + }; + struct ifreq ifr; + struct rte_eth_link dev_link; + int link_speed = 0; + + (void)wait_to_complete; + if (priv_ifreq(priv, SIOCGIFFLAGS, &ifr)) { + WARN("ioctl(SIOCGIFFLAGS) failed: %s", strerror(errno)); + return -1; + } + memset(&dev_link, 0, sizeof(dev_link)); + dev_link.link_status = ((ifr.ifr_flags & IFF_UP) && + (ifr.ifr_flags & IFF_RUNNING)); + ifr.ifr_data = &edata; + if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { + WARN("ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s", + strerror(errno)); + return -1; + } + link_speed = ethtool_cmd_speed(&edata); + if (link_speed == -1) + dev_link.link_speed = 0; + else + dev_link.link_speed = link_speed; + dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ? + ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX); + if (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) { + /* Link status changed. */ + dev->data->dev_link = dev_link; + return 0; + } + /* Link status is still the same. */ + return -1; +} + +/** + * DPDK callback to retrieve physical link information. + * + * @param dev + * Pointer to Ethernet device structure. + * @param wait_to_complete + * Wait for request completion (ignored). + */ +int +mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete) +{ + struct priv *priv = dev->data->dev_private; + int ret; + + priv_lock(priv); + ret = mlx5_link_update_unlocked(dev, wait_to_complete); + priv_unlock(priv); + return ret; +} + +/** * DPDK callback to change the MTU. * * Setting the MTU affects hardware MRU (packets larger than the MTU cannot be -- 2.1.0