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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