[dpdk-dev] [PATCH v2 1/4] net/bnxt: fix RSS table update for start/stop rxq

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

From: Lance Richardson <lance.richardson@broadcom.com>

A previous commit made updating of the RSS table when a receive
queue is stopped/started conditional on vnic->rx_queue_cnt being
nonzero. This count is only nonzero for dynamically created VNICs,
so the RSS table was not being updated in the normal path.
Fix by restoring the original logic.

Also ensure that vnic->rx_queue_cnt is initialized to zero when
reinitializing the VNIC array.

Fixes: 36024b2e7fe5 ("net/bnxt: allow dynamic creation of VNIC")

Signed-off-by: Lance Richardson <lance.richardson@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt_rxq.c  | 6 ++----
 drivers/net/bnxt/bnxt_vnic.c | 1 +
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index 6420281d3..ab889c10e 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -466,8 +466,7 @@ int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 		}
 
 		PMD_DRV_LOG(DEBUG, "Rx Queue Count %d\n", vnic->rx_queue_cnt);
-		if (vnic->rx_queue_cnt > 1)
-			rc = bnxt_vnic_rss_configure(bp, vnic);
+		rc = bnxt_vnic_rss_configure(bp, vnic);
 	}
 
 	if (rc == 0)
@@ -522,8 +521,7 @@ int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 			vnic->fw_grp_ids[rx_queue_id] = INVALID_HW_RING_ID;
 
 		PMD_DRV_LOG(DEBUG, "Rx Queue Count %d\n", vnic->rx_queue_cnt);
-		if (vnic->rx_queue_cnt > 1)
-			rc = bnxt_vnic_rss_configure(bp, vnic);
+		rc = bnxt_vnic_rss_configure(bp, vnic);
 	}
 
 	if (rc == 0)
diff --git a/drivers/net/bnxt/bnxt_vnic.c b/drivers/net/bnxt/bnxt_vnic.c
index 412a53dc0..52a4badfc 100644
--- a/drivers/net/bnxt/bnxt_vnic.c
+++ b/drivers/net/bnxt/bnxt_vnic.c
@@ -51,6 +51,7 @@ static void bnxt_init_vnics(struct bnxt *bp)
 		vnic->lb_rule = (uint16_t)HWRM_NA_SIGNATURE;
 		vnic->hash_mode =
 			HWRM_VNIC_RSS_CFG_INPUT_HASH_MODE_FLAGS_DEFAULT;
+		vnic->rx_queue_cnt = 0;
 
 		STAILQ_INIT(&vnic->filter);
 		STAILQ_INIT(&vnic->flow_list);
-- 
2.21.0 (Apple Git-122)