[v2] vhsot-user: Do not wait for replay for not sent VHOST_USER_SET_LOG_BASE

[PATCH v2] vhsot-user: Do not wait for replay for not sent VHOST_USER_SET_LOG_BASE

Posted by BillXiang 12 months ago

From: BillXiang <xiangwencheng@dayudpu.com>

We have added VHOST_USER_SET_LOG_BASE to vhost_user_per_device_request
in https://lists.nongnu.org/archive/html/qemu-devel/2024-06/msg02559.html
and will send this message only for vq 0.

Signed-off-by: BillXiang <xiangwencheng@dayudpu.com>
---
V1[1] -> V2:
 - Refrain from appending flags to messages that could 
precipitate validation failures upon execution of the 
`vhost_user_read_header` function. 

[1]https://lists.nongnu.org/archive/html/qemu-devel/2024-07/msg01923.html
---
 hw/virtio/vhost-user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index 00561daa06..fd12992d15 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -460,7 +460,7 @@ static int vhost_user_set_log_base(struct vhost_dev *dev, uint64_t base,
         return ret;
     }
 
-    if (shmfd) {
+    if (shmfd && (dev->vq_index == 0)) {
         msg.hdr.size = 0;
         ret = vhost_user_read(dev, &msg);
         if (ret < 0) {
-- 
2.30.0

Re: [PATCH v2] vhsot-user: Do not wait for replay for not sent VHOST_USER_SET_LOG_BASE

Posted by Michael S. Tsirkin 12 months ago

typos in subject do not inspire confidence.

On Thu, Jul 18, 2024 at 04:31:03PM +0800, BillXiang wrote:
> From: BillXiang <xiangwencheng@dayudpu.com>
> 
> We have added VHOST_USER_SET_LOG_BASE to vhost_user_per_device_request
> in https://lists.nongnu.org/archive/html/qemu-devel/2024-06/msg02559.html

Pls put commit here not ML link:
commit ABCDEFGHIKLM ("subject")

> and will send this message only for vq 0.

you mean "should send"?


> 
> Signed-off-by: BillXiang <xiangwencheng@dayudpu.com>
> ---
> V1[1] -> V2:
>  - Refrain from appending flags to messages that could 
> precipitate validation failures upon execution of the 
> `vhost_user_read_header` function. 
> 
> [1]https://lists.nongnu.org/archive/html/qemu-devel/2024-07/msg01923.html
> ---
>  hw/virtio/vhost-user.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
> index 00561daa06..fd12992d15 100644
> --- a/hw/virtio/vhost-user.c
> +++ b/hw/virtio/vhost-user.c
> @@ -460,7 +460,7 @@ static int vhost_user_set_log_base(struct vhost_dev *dev, uint64_t base,
>          return ret;
>      }
>  
> -    if (shmfd) {
> +    if (shmfd && (dev->vq_index == 0)) {

extra () not needed here.

>          msg.hdr.size = 0;
>          ret = vhost_user_read(dev, &msg);
>          if (ret < 0) {
> -- 
> 2.30.0