lkml.org 
[lkml]   [2021]   [Jul]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[RFC PATCH v1 3/7] vhost/vsock: support MSG_EOR bit processing
    Date
    It works in the same way as 'end-of-message' bit: if packet has
    'EOM' bit, also check for 'EOR' bit.

    Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
    ---
    drivers/vhost/vsock.c | 12 +++++++++++-
    1 file changed, 11 insertions(+), 1 deletion(-)

    diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
    index 3b55de70ac77..3e2b150f9c6f 100644
    --- a/drivers/vhost/vsock.c
    +++ b/drivers/vhost/vsock.c
    @@ -115,6 +115,7 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
    size_t iov_len, payload_len;
    int head;
    bool restore_msg_eom_flag = false;
    + bool restore_msg_eor_flag = false;

    spin_lock_bh(&vsock->send_pkt_list_lock);
    if (list_empty(&vsock->send_pkt_list)) {
    @@ -188,6 +189,11 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
    if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOM) {
    pkt->hdr.flags &= ~cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM);
    restore_msg_eom_flag = true;
    +
    + if (le32_to_cpu(pkt->hdr.flags & VIRTIO_VSOCK_SEQ_EOR)) {
    + pkt->hdr.flags &= ~cpu_to_le32(VIRTIO_VSOCK_SEQ_EOR);
    + restore_msg_eor_flag = true;
    + }
    }
    }

    @@ -224,9 +230,13 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
    * to send it with the next available buffer.
    */
    if (pkt->off < pkt->len) {
    - if (restore_msg_eom_flag)
    + if (restore_msg_eom_flag) {
    pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM);

    + if (restore_msg_eor_flag)
    + pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOR);
    + }
    +
    /* We are queueing the same virtio_vsock_pkt to handle
    * the remaining bytes, and we want to deliver it
    * to monitoring devices in the next iteration.
    --
    2.25.1
    \
     
     \ /
      Last update: 2021-07-26 18:40    [W:3.995 / U:0.424 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site