From: Gavin Hu <gavin.hu@arm.com>
Date: Mon, 16 Sep 2019 11:27:17 +0000 (+0800)
Subject: net/bnxt: replace memory barrier for doorbell response
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=21ecbde99b2f0772d36eef8276a686f3135e5de9;hp=4a1721107c30603e078a611e99a4183de178fd7d;p=dpdk.git

net/bnxt: replace memory barrier for doorbell response

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")
Cc: stable@dpdk.org

Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index e73d8ed76a..d7c33d21e2 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -150,7 +150,7 @@ static int bnxt_hwrm_send_message(struct bnxt *bp, void *msg,
 	/* Poll for the valid bit */
 	for (i = 0; i < 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 */
 			valid = (uint8_t *)resp + resp->resp_len - 1;