2021-07-26 16:41:01

by Arseny Krasnov

Subject: [RFC PATCH v1 1/7] virtio/vsock: add 'VIRTIO_VSOCK_SEQ_EOM' bit

This bit is used to mark end of messages('EOM' - end of message), while
'VIRIO_VSOCK_SEQ_EOR' is used to pass MSG_EOR.

Signed-off-by: Arseny Krasnov <[email protected]>
---
include/uapi/linux/virtio_vsock.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
index 3dd3555b2740..1de3211a2988 100644
--- a/include/uapi/linux/virtio_vsock.h
+++ b/include/uapi/linux/virtio_vsock.h
@@ -98,6 +98,7 @@ enum virtio_vsock_shutdown {
/* VIRTIO_VSOCK_OP_RW flags values */
enum virtio_vsock_rw {
VIRTIO_VSOCK_SEQ_EOR = 1,
+ VIRTIO_VSOCK_SEQ_EOM = 2,
};

#endif /* _UAPI_LINUX_VIRTIO_VSOCK_H */
--
2.25.1

2021-08-06 12:02:12

by Stefano Garzarella

Subject: Re: [RFC PATCH v1 1/7] virtio/vsock: add 'VIRTIO_VSOCK_SEQ_EOM' bit

On Mon, Jul 26, 2021 at 07:33:04PM +0300, Arseny Krasnov wrote:
>This bit is used to mark end of messages('EOM' - end of message), while
>'VIRIO_VSOCK_SEQ_EOR' is used to pass MSG_EOR.
>
>Signed-off-by: Arseny Krasnov <[email protected]>
>---
> include/uapi/linux/virtio_vsock.h | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
>index 3dd3555b2740..1de3211a2988 100644
>--- a/include/uapi/linux/virtio_vsock.h
>+++ b/include/uapi/linux/virtio_vsock.h
>@@ -98,6 +98,7 @@ enum virtio_vsock_shutdown {
> /* VIRTIO_VSOCK_OP_RW flags values */
> enum virtio_vsock_rw {
> VIRTIO_VSOCK_SEQ_EOR = 1,
>+ VIRTIO_VSOCK_SEQ_EOM = 2,
> };

Already said, but I'll repeat it for completeness.

It's better to rename the flag 1 and use it in the same way we did
before, so it's backward compatible.

Obviously we have to update the specifications too, explaining the
difference between the two :-)

Thanks,
Stefano