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From: "Xia, Chenbo" <chenbo.xia@intel.com>
To: Adrian Moreno <amorenoz@redhat.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"Ye, Xiaolong" <xiaolong.ye@intel.com>,
	"shahafs@mellanox.com" <shahafs@mellanox.com>,
	"matan@mellanox.com" <matan@mellanox.com>,
	"maxime.coquelin@redhat.com" <maxime.coquelin@redhat.com>,
	"Wang, Xiao W" <xiao.w.wang@intel.com>,
	"viacheslavo@mellanox.com" <viacheslavo@mellanox.com>
Cc: "jasowang@redhat.com" <jasowang@redhat.com>,
	"lulu@redhat.com" <lulu@redhat.com>,
	"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3 1/8] vhost: fix virtio ready flag check
Date: Tue, 7 Jul 2020 03:21:16 +0000
Message-ID: <MN2PR11MB4063FA5A4410447665B658269C660@MN2PR11MB4063.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20200706112452.1474533-2-amorenoz@redhat.com>


> -----Original Message-----
> From: Adrian Moreno <amorenoz@redhat.com>
> Sent: Monday, July 6, 2020 7:25 PM
> To: dev@dpdk.org; Xia, Chenbo <chenbo.xia@intel.com>; Ye, Xiaolong
> <xiaolong.ye@intel.com>; shahafs@mellanox.com; matan@mellanox.com;
> maxime.coquelin@redhat.com; Wang, Xiao W <xiao.w.wang@intel.com>;
> viacheslavo@mellanox.com
> Cc: jasowang@redhat.com; lulu@redhat.com; stable@dpdk.org
> Subject: [PATCH v3 1/8] vhost: fix virtio ready flag check
> 
> From: Maxime Coquelin <maxime.coquelin@redhat.com>
> 
> Before checking whether the device is ready is done a check on whether the
> RUNNING flag is set. Then the READY flag is set if virtio_is_ready() returns true.
> 
> While it seems to not cause any issue, it makes more sense to check whether the
> READY flag is set and not the RUNNING one.
> 
> Fixes: c0674b1bc898 ("vhost: move the device ready check at proper place")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
>  lib/librte_vhost/vhost_user.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index
> 6039a8fdb..5750dde6d 100644
> --- a/lib/librte_vhost/vhost_user.c
> +++ b/lib/librte_vhost/vhost_user.c
> @@ -2825,7 +2825,7 @@ vhost_user_msg_handler(int vid, int fd)
>  	}
> 
> 
> -	if (!(dev->flags & VIRTIO_DEV_RUNNING) && virtio_is_ready(dev)) {
> +	if (!(dev->flags & VIRTIO_DEV_READY) && virtio_is_ready(dev)) {
>  		dev->flags |= VIRTIO_DEV_READY;
> 
>  		if (!(dev->flags & VIRTIO_DEV_RUNNING)) {
> --
> 2.26.2

Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>

  reply	other threads:[~2020-07-07  3:21 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-06 11:24 [dpdk-dev] [PATCH (v20.08) v3 0/8] vhost: improve Vhost/vDPA device init Adrian Moreno
2020-07-06 11:24 ` [dpdk-dev] [PATCH v3 1/8] vhost: fix virtio ready flag check Adrian Moreno
2020-07-07  3:21   ` Xia, Chenbo [this message]
2020-07-08 14:22     ` [dpdk-dev] [dpdk-stable] " Ferruh Yigit
2020-07-06 11:24 ` [dpdk-dev] [PATCH v3 2/8] vhost: refactor Virtio ready check Adrian Moreno
2020-07-07  3:21   ` Xia, Chenbo
2020-07-06 11:24 ` [dpdk-dev] [PATCH v3 3/8] vhost: make some vDPA callbacks mandatory Adrian Moreno
2020-07-07  3:21   ` Xia, Chenbo
2020-07-06 11:24 ` [dpdk-dev] [PATCH v3 4/8] vhost: check vDPA configuration succeed Adrian Moreno
2020-07-07  3:22   ` Xia, Chenbo
2020-07-08 13:20   ` Ferruh Yigit
2020-07-06 11:24 ` [dpdk-dev] [PATCH v3 5/8] vhost: add support for virtio status Adrian Moreno
2020-07-07  3:22   ` Xia, Chenbo
2020-07-06 11:24 ` [dpdk-dev] [PATCH v3 6/8] vhost: add support for virtio get status message Adrian Moreno
2020-07-07  3:22   ` Xia, Chenbo
2020-07-06 11:24 ` [dpdk-dev] [PATCH v3 7/8] vdpa/ifc: enable status protocol feature Adrian Moreno
2020-07-07  3:22   ` Xia, Chenbo
2020-07-06 11:24 ` [dpdk-dev] [PATCH v3 8/8] vdpa/mlx5: " Adrian Moreno
2020-07-07  3:23   ` Xia, Chenbo

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