Re: [RFC PATCH v2 3/5] virito/vsock: support MSG_EOR bit processing
From: Stefano Garzarella <sgarzare@redhat.com>
Date: 2021-08-11 09:09:14
Also in:
kvm, lkml, netdev
On Tue, Aug 10, 2021 at 02:40:32PM +0300, Arseny Krasnov wrote:
quoted hunk
If packet has 'EOR' bit - set MSG_EOR in 'recvmsg()' flags. Signed-off-by: Arseny Krasnov <redacted> --- net/vmw_vsock/virtio_transport_common.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 4d5a93beceb0..59ee1be5a6dd 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c@@ -76,8 +76,12 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info,goto out; if (msg_data_left(info->msg) == 0 && - info->type == VIRTIO_VSOCK_TYPE_SEQPACKET) + info->type == VIRTIO_VSOCK_TYPE_SEQPACKET) { pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM); + + if (info->msg->msg_flags & MSG_EOR) + pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOR); + } } trace_virtio_transport_alloc_pkt(src_cid, src_port,@@ -460,6 +464,9 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk,if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOM) { msg_ready = true; vvs->msg_count--; + + if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOR) + msg->msg_flags |= MSG_EOR; } virtio_transport_dec_rx_pkt(vvs, pkt); -- 2.25.1
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization