[dpdk-dev] [PATCH 07/15] net/bnxt: fix for doorbell register offset for Tx ring.

Ajit Khaparde ajit.khaparde at broadcom.com
Fri Jul 12 08:06:14 CEST 2019


For Tx-ring # 104 and higher, the doorbell register was incorrectly
configured due to which FW was not able to receive the notification
of packet to transmit. With this fix, user can run traffic upto 256 rings.

Fixes: 6eb3cc2294fd ("net/bnxt: add initial Tx code")

Signed-off-by: Rahul Gupta <rahul.gupta at broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_ring.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ring.c b/drivers/net/bnxt/bnxt_ring.c
index 13478fa02..f4f57862d 100644
--- a/drivers/net/bnxt/bnxt_ring.c
+++ b/drivers/net/bnxt/bnxt_ring.c
@@ -639,12 +639,12 @@ int bnxt_alloc_hwrm_rings(struct bnxt *bp)
 		ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_TX;
 		rc = bnxt_hwrm_ring_alloc(bp, ring,
 					  ring_type,
-					  idx, cpr->hw_stats_ctx_id,
+					  i, cpr->hw_stats_ctx_id,
 					  cp_ring->fw_ring_id);
 		if (rc)
 			goto err_out;
 
-		bnxt_set_db(bp, &txr->tx_db, ring_type, idx, ring->fw_ring_id);
+		bnxt_set_db(bp, &txr->tx_db, ring_type, i, ring->fw_ring_id);
 		txq->index = idx;
 		bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id);
 	}
-- 
2.20.1 (Apple Git-117)



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