[dpdk-dev] [PATCH v2 3/6] net/bnxt: fix flow creation with non-consecutive group ids

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

From: Rahul Gupta <rahul.gupta@broadcom.com>

In non-RSS mode, vnics map 1:1 with Rx queues during init. This can
create problems if non-consecutive group IDs are given as part of
subsequent flow create cmds as they can end up pointing to Rx queues
(mapped during init) that are different than the intended destination
queue as specified in the flow create cmd.
To fix this, now that we have the ability to dynamically create
vnics, do not create any additional vnics other than the default vnic
during init. Allocate them only during flow/filter creation time.

When RSS is disabled we need to use the COS queue count queried
from firmware.

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

Signed-off-by: Rahul Gupta <rahul.gupta@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
---
 drivers/net/bnxt/bnxt_flow.c | 4 +---
 drivers/net/bnxt/bnxt_rxq.c  | 5 ++++-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_flow.c b/drivers/net/bnxt/bnxt_flow.c
index 8f386cdf1..5af571448 100644
--- a/drivers/net/bnxt/bnxt_flow.c
+++ b/drivers/net/bnxt/bnxt_flow.c
@@ -1093,9 +1093,7 @@ bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
 		    vnic->fw_vnic_id != INVALID_HW_RING_ID)
 			goto use_vnic;
 
-		if (!rxq ||
-		    bp->vnic_info[0].fw_grp_ids[act_q->index] !=
-		    INVALID_HW_RING_ID) {
+		if (!rxq) {
 			PMD_DRV_LOG(ERR,
 				    "Queue invalid or used with other VNIC\n");
 			rte_flow_error_set(error,
diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index fa11bec4e..7fd079da3 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -35,7 +35,7 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
 	int start_grp_id, end_grp_id = 1, rc = 0;
 	struct bnxt_vnic_info *vnic;
 	struct bnxt_filter_info *filter;
-	enum rte_eth_nb_pools pools = bp->rx_cp_nr_rings, max_pools = 0;
+	enum rte_eth_nb_pools pools = 1, max_pools = 0;
 	struct bnxt_rx_queue *rxq;
 
 	bp->nr_vnics = 0;
@@ -100,7 +100,10 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
 			rc = -EINVAL;
 			goto err_out;
 		}
+	} else if (!dev_conf->rxmode.mq_mode) {
+		pools = bp->rx_cosq_cnt ? bp->rx_cosq_cnt : pools;
 	}
+
 	nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 	bp->rx_num_qs_per_vnic = nb_q_per_grp;
 	PMD_DRV_LOG(DEBUG, "pools = %u nb_q_per_grp = %u\n",
-- 
2.21.0 (Apple Git-122.2)