Setting exact link speed makes sense if auto-negotiation is disabled. Fixed flag is required to disable auto-negotiation. Signed-off-by: Guinan Sun --- drivers/net/ixgbe/ixgbe_ethdev.c | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index 2c6fd0f13..e1ab1dcab 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -2558,17 +2558,6 @@ ixgbe_dev_start(struct rte_eth_dev *dev) PMD_INIT_FUNC_TRACE(); - /* IXGBE devices don't support: - * - half duplex (checked afterwards for valid speeds) - * - fixed speed: TODO implement - */ - if (dev->data->dev_conf.link_speeds & ETH_LINK_SPEED_FIXED) { - PMD_INIT_LOG(ERR, - "Invalid link_speeds for port %u, fix speed not supported", - dev->data->port_id); - return -EINVAL; - } - /* Stop the link setup handler before resetting the HW. */ rte_eal_alarm_cancel(ixgbe_dev_setup_link_alarm_handler, dev); @@ -2724,7 +2713,11 @@ ixgbe_dev_start(struct rte_eth_dev *dev) } link_speeds = &dev->data->dev_conf.link_speeds; - if (*link_speeds & ~allowed_speeds) { + + /* Ignore autoneg flag bit and check the validity of  + * link_speed  + */ + if (((*link_speeds) >> 1) & ~(allowed_speeds >> 1)) { PMD_INIT_LOG(ERR, "Invalid link setting"); goto error; } @@ -4133,7 +4126,8 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev, link.link_status = ETH_LINK_DOWN; link.link_speed = ETH_SPEED_NUM_NONE; link.link_duplex = ETH_LINK_HALF_DUPLEX; - link.link_autoneg = ETH_LINK_AUTONEG; + link.link_autoneg = !(dev->data->dev_conf.link_speeds & + ETH_LINK_SPEED_FIXED); hw->mac.get_link_status = true; -- 2.17.1