+/**
+ * Retrieve physical link information (unlocked version using new ioctl).
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param wait_to_complete
+ * Wait for request completion (ignored).
+ */
+static int
+mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev, int wait_to_complete)
+{
+ struct priv *priv = mlx5_get_priv(dev);
+ __extension__ struct {
+ struct ethtool_link_settings edata;
+ uint32_t link_mode_data[3 *
+ ETHTOOL_LINK_MODE_MASK_MAX_KERNEL_NU32];
+ } ecmd;
+
+ struct ifreq ifr;
+ struct rte_eth_link dev_link;
+ uint64_t sc;
+
+ (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));
+ memset(&ecmd, 0, sizeof(ecmd));
+ ecmd.edata.cmd = ETHTOOL_GLINKSETTINGS;
+ ifr.ifr_data = (void *)&ecmd;
+ if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
+ DEBUG("ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS) failed: %s",
+ strerror(errno));
+ return -1;
+ }
+ ecmd.edata.link_mode_masks_nwords = -ecmd.edata.link_mode_masks_nwords;
+ if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
+ DEBUG("ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS) failed: %s",
+ strerror(errno));
+ return -1;
+ }
+ dev_link.link_speed = ecmd.edata.speed;
+ sc = ecmd.edata.link_mode_masks[0] |
+ ((uint64_t)ecmd.edata.link_mode_masks[1] << 32);
+ priv->link_speed_capa = 0;
+ if (sc & ETHTOOL_LINK_MODE_Autoneg_BIT)
+ priv->link_speed_capa |= ETH_LINK_SPEED_AUTONEG;
+ if (sc & (ETHTOOL_LINK_MODE_1000baseT_Full_BIT |
+ ETHTOOL_LINK_MODE_1000baseKX_Full_BIT))
+ priv->link_speed_capa |= ETH_LINK_SPEED_1G;
+ if (sc & (ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT |
+ ETHTOOL_LINK_MODE_10000baseKR_Full_BIT |
+ ETHTOOL_LINK_MODE_10000baseR_FEC_BIT))
+ priv->link_speed_capa |= ETH_LINK_SPEED_10G;
+ if (sc & (ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT |
+ ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT))
+ priv->link_speed_capa |= ETH_LINK_SPEED_20G;
+ if (sc & (ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT |
+ ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT |
+ ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT |
+ ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT))
+ priv->link_speed_capa |= ETH_LINK_SPEED_40G;
+ if (sc & (ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT |
+ ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT |
+ ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT |
+ ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT))
+ priv->link_speed_capa |= ETH_LINK_SPEED_56G;
+ if (sc & (ETHTOOL_LINK_MODE_25000baseCR_Full_BIT |
+ ETHTOOL_LINK_MODE_25000baseKR_Full_BIT |
+ ETHTOOL_LINK_MODE_25000baseSR_Full_BIT))
+ priv->link_speed_capa |= ETH_LINK_SPEED_25G;
+ if (sc & (ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT |
+ ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT))
+ priv->link_speed_capa |= ETH_LINK_SPEED_50G;
+ if (sc & (ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT |
+ ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT |
+ ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT |
+ ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT))
+ priv->link_speed_capa |= ETH_LINK_SPEED_100G;
+ dev_link.link_duplex = ((ecmd.edata.duplex == DUPLEX_HALF) ?
+ ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
+ dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
+ ETH_LINK_SPEED_FIXED);
+ 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 (unlocked version).
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param wait_to_complete
+ * Wait for request completion (ignored).
+ */
+int
+mlx5_link_update_unlocked(struct rte_eth_dev *dev, int wait_to_complete)
+{
+ struct utsname utsname;
+ int ver[3];
+
+ if (uname(&utsname) == -1 ||
+ sscanf(utsname.release, "%d.%d.%d",
+ &ver[0], &ver[1], &ver[2]) != 3 ||
+ KERNEL_VERSION(ver[0], ver[1], ver[2]) < KERNEL_VERSION(4, 9, 0))
+ return mlx5_link_update_unlocked_gset(dev, wait_to_complete);
+ return mlx5_link_update_unlocked_gs(dev, wait_to_complete);
+}
+