From: Ajit Khaparde <ajit.khaparde@broadcom.com>
To: Gavin Hu <gavin.hu@arm.com>
Cc: dev@dpdk.org, nd@arm.com, Thomas Monjalon <thomas@monjalon.net>,
Bruce Richardson <bruce.richardson@intel.com>,
yong.liu@intel.com, yinan.wang@intel.com,
Somnath Kotur <somnath.kotur@broadcom.com>,
Honnappa.Nagarahalli@arm.com, ruifeng.wang@arm.com,
steve.capper@arm.com, dpdk stable <stable@dpdk.org>
Subject: Re: [dpdk-stable] [PATCH v2 4/5] net/bnxt: replace with cio barrier for doorbell resp
Date: Mon, 16 Sep 2019 18:56:27 -0700
Message-ID: <CACZ4nhtfn7rMi=1th2p2fN_jWbSaETyr_xkXzpmmei-eOCULUw@mail.gmail.com> (raw)
In-Reply-To: <1568633238-47888-5-git-send-email-gavin.hu@arm.com>
On Mon, Sep 16, 2019 at 4:27 AM Gavin Hu <gavin.hu@arm.com> wrote:
> 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>
> ---
> 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 1d9fb17..2d5dc00 100644
> --- a/drivers/net/bnxt/bnxt_hwrm.c
> +++ b/drivers/net/bnxt/bnxt_hwrm.c
> @@ -138,7 +138,7 @@ 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 */
> valid = (uint8_t *)resp + resp->resp_len - 1;
> --
> 2.7.4
>
>
next prev parent reply index
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 ` [dpdk-stable] [PATCH v2 3/5] net/bnxt: remove duplicate barrier Gavin Hu
2019-09-17 1:55 ` 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 [this message]
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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