[dpdk-dev] [PATCH v3] net/ixgbe: fix vf reset hw error handling

[SteveX Yang <stevex.yang@intel.com>]

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")

Signed-off-by: SteveX Yang <stevex.yang@intel.com>
---
v3:
 * update commit and inline comment
v2:
 * update comment
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index d9582473a..d68f090fd 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -5322,10 +5322,16 @@ 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. */
-- 
2.17.1