[PATCH] net/bonding: avoid RSS reta update in flow-isolation mode

[madhuker.mythri at oracle.com]

From: Madhuker Mythri <madhuker.mythri at oracle.com>

In bonding PMD, member_start() function checks whether RSS(mq_mode) is
enabled and then calling the RSS rte_eth_dev_rss_reta_update() API, which
is returning error in-case of device configured in flow isolation-mode.
When the device configured with flow isolation mode RSS reta update is not
required and the API was not supported. For example in-case of mlx5 PMD,
RSS reta update API was not supported, when the device is configured in
flow isolation-mode.

So, added check to verify if the device is configured in flow-isolation
mode, then do not call the rte_eth_dev_rss_reta_update() API.

Fixes: 734ce47f71e0 ("bonding: support RSS dynamic configuration")
Cc: tomaszx.kulasek at intel.com

Signed-off-by: Madhuker Mythri <madhuker.mythri at oracle.com>
---
 drivers/net/bonding/rte_eth_bond_pmd.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index 83339bae3d..4906701a95 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -1904,12 +1904,13 @@ member_start(struct rte_eth_dev *bonding_eth_dev,
 		}
 	}
 
-	/* If RSS is enabled for bonding, synchronize RETA */
-	if (bonding_eth_dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS) {
+	/*
+	 * If flow-isolation is not enabled, then check whether RSS is enabled for
+	 * bonding, synchronize RETA
+	 */
+	if (internals->flow_isolated_valid == 0 &&
+		(bonding_eth_dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS)) {
 		int i;
-		struct bond_dev_private *internals;
-
-		internals = bonding_eth_dev->data->dev_private;
 
 		for (i = 0; i < internals->member_count; i++) {
 			if (internals->members[i].port_id == member_port_id) {
-- 
2.39.5 (Apple Git-154)