[dpdk-stable] [PATCH 17.11] net/bnxt: replace memory barrier for doorbell response

[Gavin Hu]

[ upstream commit 21ecbde99b2f0772d36eef8276a686f3135e5de9 ]

To read the doorbell response, which is held in the host CIO memory,
rte_cio_rmb is sufficient.

Fixes: 804e746c7b73 ("net/bnxt: add hardware resource manager init code")

Signed-off-by: Gavin Hu <gavin.hu at arm.com>
Acked-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index d2c800d..e5ba5c3 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -149,7 +149,7 @@ static int bnxt_hwrm_send_message(struct bnxt *bp, void *msg,
 	/* Poll for the valid bit */
 	for (i = 0; i < HWRM_CMD_TIMEOUT; i++) {
 		/* Sanity check on the resp->resp_len */
-		rte_rmb();
+		rte_cio_rmb();
 		if (resp->resp_len && resp->resp_len <=
 				bp->max_resp_len) {
 			/* Last byte of resp contains the valid key */
-- 
2.7.4