[dpdk-dev] [PATCH v2 09/20] net/bnxt: fix an issue in setting default MAC address

[Ajit Khaparde]

From: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>

Driver was incorrectly programming the MAC with the already
configured one instead of the newly requested MAC by user.

Also, fix to restore the old mac address back to the default
vnic filter if the mac update operation fails.

Fixes: 68f589f2c728e ("net/bnxt: fix setting primary MAC address")

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur at broadcom.com>
---
 drivers/net/bnxt/bnxt_ethdev.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 7cd3213558..2c9eaaa2ef 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -1904,7 +1904,7 @@ bnxt_set_default_mac_addr_op(struct rte_eth_dev *dev,
 		if (filter->mac_index != 0)
 			continue;
 
-		memcpy(filter->l2_addr, bp->mac_addr, RTE_ETHER_ADDR_LEN);
+		memcpy(filter->l2_addr, addr, RTE_ETHER_ADDR_LEN);
 		memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
 		filter->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX |
 			HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
@@ -1913,8 +1913,11 @@ bnxt_set_default_mac_addr_op(struct rte_eth_dev *dev,
 			HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR_MASK;
 
 		rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id, filter);
-		if (rc)
+		if (rc) {
+			memcpy(filter->l2_addr, bp->mac_addr,
+			       RTE_ETHER_ADDR_LEN);
 			return rc;
+		}
 
 		memcpy(bp->mac_addr, addr, RTE_ETHER_ADDR_LEN);
 		PMD_DRV_LOG(DEBUG, "Set MAC addr\n");
-- 
2.20.1 (Apple Git-117)