net/ixgbe: fix VF reset HW error handling

When start a VF with no initial MAC address assigned by the underlying
Host PF driver, just reuse the MAC address assigned when VF is
initializing.

Fixes: f69166c9a3c9 ("net/ixgbe: fix reset error handling")
Cc: stable@dpdk.org
Signed-off-by: Steve Yang <stevex.yang@intel.com>
Acked-by: Jeff Guo <jia.guo@intel.com>

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index c74467e..8da963a 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -5320,10 +5320,16 @@ ixgbevf_dev_start(struct rte_eth_dev *dev)
        ixgbe_dev_wait_setup_link_complete(dev, 0);
 
        err = hw->mac.ops.reset_hw(hw);
-       if (err) {
+
+       /**
+        * In this case, reuses the MAC address assigned by VF
+        * initialization.
+        */
+       if (err != IXGBE_SUCCESS && err != IXGBE_ERR_INVALID_MAC_ADDR) {
                PMD_INIT_LOG(ERR, "Unable to reset vf hardware (%d)", err);
                return err;
        }
+
        hw->mac.get_link_status = true;
 
        /* negotiate mailbox API version to use with the PF. */