[dpdk-dev] [PATCH v2] net/i40e: upgrade AQ command of MAC/VLAN remove

[Robin Zhang]

Firmware will return I40E_AQ_RC_ENOENT when try to delete non-existent
MAC/VLAN addresses from the HW filtering, this should not be considered as
an Admin Queue error. But in i40e_asq_send_command, it will return
I40E_ERR_ADMIN_QUEUE_ERROR if the return value of Admin Queue command
processed by Firmware is not I40E_AQ_RC_OK or I40E_AQ_RC_EBUSY.

Use i40e_aq_remove_macvlan_v2 instead so that we can get the corresponding
Admin Queue status, and not report as an error in DPDK when Firmware
return I40E_AQ_RC_ENOENT.

Signed-off-by: Robin Zhang <robinx.zhang at intel.com>
---

v2:
- To avoid confuse, remove the "fix" from patch title

---
 drivers/net/i40e/i40e_ethdev.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index b00f9cd396..52f6c673be 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -7012,6 +7012,7 @@ i40e_remove_macvlan_filters(struct i40e_vsi *vsi,
 	int ret = I40E_SUCCESS;
 	struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
 	struct i40e_aqc_remove_macvlan_element_data *req_list;
+	enum i40e_admin_queue_err aq_status;
 
 	if (filter == NULL  || total == 0)
 		return I40E_ERR_PARAM;
@@ -7059,11 +7060,17 @@ i40e_remove_macvlan_filters(struct i40e_vsi *vsi,
 			req_list[i].flags = rte_cpu_to_le_16(flags);
 		}
 
-		ret = i40e_aq_remove_macvlan(hw, vsi->seid, req_list,
-						actual_num, NULL);
+		ret = i40e_aq_remove_macvlan_v2(hw, vsi->seid, req_list,
+						actual_num, NULL, &aq_status);
+
 		if (ret != I40E_SUCCESS) {
-			PMD_DRV_LOG(ERR, "Failed to remove macvlan filter");
-			goto DONE;
+			/* Do not report as an error when firmware returns ENOENT */
+			if (aq_status == I40E_AQ_RC_ENOENT) {
+				ret = I40E_SUCCESS;
+			} else {
+				PMD_DRV_LOG(ERR, "Failed to remove macvlan filter");
+				goto DONE;
+			}
 		}
 		num += actual_num;
 	} while (num < total);
-- 
2.25.1