From: Gavin Hu <gavin.hu@arm.com>
To: dev@dpdk.org
Cc: nd@arm.com, thomas@monjalon.net, bruce.richardson@intel.com,
yong.liu@intel.com, yinan.wang@intel.com,
ajit.khaparde@broadcom.com, somnath.kotur@broadcom.com,
Honnappa.Nagarahalli@arm.com, ruifeng.wang@arm.com,
steve.capper@arm.com, stable@dpdk.org
Subject: [dpdk-stable] [PATCH v2 3/5] net/bnxt: remove duplicate barrier
Date: Mon, 16 Sep 2019 19:27:16 +0800 [thread overview]
Message-ID: <1568633238-47888-4-git-send-email-gavin.hu@arm.com> (raw)
In-Reply-To: <1568633238-47888-1-git-send-email-gavin.hu@arm.com>
In-Reply-To: <1567751873-15964-1-git-send-email-gavin.hu@arm.com>
As there is an inclusive rte_io_wmb within the following rte_write32()
API who rings the doorbell, this makes the above rte_wmb unnecessary and
remove it.
Fixes: 1cd45aeb3270 ("net/bnxt: support Stratus VF device")
Cc: stable@dpdk.org
Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
---
drivers/net/bnxt/bnxt_hwrm.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 9883fb5..1d9fb17 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -115,9 +115,6 @@ static int bnxt_hwrm_send_message(struct bnxt *bp, void *msg,
data = (uint32_t *)&short_input;
msg_len = sizeof(short_input);
- /* Sync memory write before updating doorbell */
- rte_wmb();
-
max_req_len = BNXT_HWRM_SHORT_REQ_LEN;
}
--
2.7.4
next prev parent reply other threads:[~2019-09-16 11:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1568633238-47888-1-git-send-email-gavin.hu@arm.com>
2019-09-06 6:37 ` [dpdk-stable] [PATCH] net/bnxt: fix memory barriers Gavin Hu
2019-09-16 11:27 ` Gavin Hu [this message]
2019-09-17 1:55 ` [dpdk-stable] [PATCH v2 3/5] net/bnxt: remove duplicate barrier Ajit Khaparde
2019-09-16 11:27 ` [dpdk-stable] [PATCH v2 4/5] net/bnxt: replace with cio barrier for doorbell resp Gavin Hu
2019-09-17 1:56 ` Ajit Khaparde
2019-09-16 11:27 ` [dpdk-stable] [PATCH v2 5/5] net/bnxt: enforce io barrier for doorbell command Gavin Hu
2019-09-17 1:55 ` Ajit Khaparde
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