Stefano Garzarella
2021-Mar-15 11:28 UTC
[RFC PATCH v6 16/22] vhost/vsock: SEQPACKET feature bit support
On Sun, Mar 07, 2021 at 09:03:41PM +0300, Arseny Krasnov wrote:>This adds handling of SEQPACKET bit: if guest sets features with >this bit cleared, then SOCK_SEQPACKET support will be disabled. > >Signed-off-by: Arseny Krasnov <arseny.krasnov at kaspersky.com> >--- > drivers/vhost/vsock.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-)I think is better to move this patch after we set the seqpackets ops, so we are really able to handle SEQPACKET traffic.> >diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c >index 5e78fb719602..3b0a50e6de12 100644 >--- a/drivers/vhost/vsock.c >+++ b/drivers/vhost/vsock.c >@@ -31,7 +31,8 @@ > > enum { > VHOST_VSOCK_FEATURES = VHOST_FEATURES | >- (1ULL << VIRTIO_F_ACCESS_PLATFORM) >+ (1ULL << VIRTIO_F_ACCESS_PLATFORM) | >+ (1ULL << VIRTIO_VSOCK_F_SEQPACKET) > }; > > enum { >@@ -785,6 +786,9 @@ static int vhost_vsock_set_features(struct vhost_vsock *vsock, u64 features) > goto err; > } > >+ if (features & (1ULL << VIRTIO_VSOCK_F_SEQPACKET)) >+ vhost_transport.seqpacket_allow = true; >+ > for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) { > vq = &vsock->vqs[i]; > mutex_lock(&vq->mutex); >-- >2.25.1 >