On Fri, Aug 06, 2021 at 11:40:38AM +0300, Arseny Krasnov wrote:
On 06.08.2021 10:28, Stefano Garzarella wrote:
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On Mon, Jul 26, 2021 at 07:33:38PM +0300, Arseny Krasnov wrote:
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@xxxxxxxxxxxxx>
---
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;
Since we now have 2 flags to potentially restore, we could use a single
variable (e.g. uint32_t flags_to_restore), initialized to 0.
We can set all the flags we need to restore and then simply put it
in or with the `pkt->hdr.flags` field.
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)) {
^
Here it should be `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);
+ }
+
If we use a single variable, here we can simply do:
pkt->hdr.flags |= cpu_to_le32(flags_to_restore);
Stefano
Thanks, i'll prepare v2 both with spec patch. About spec: i've already sent
patch for SEQPACKET, can i prepare spec patch updating current reviewed
SEQPACKET? E.g. i'll include both EOM and EOR in one patch.
Yep, since spec is not yet merged, I think make sense to have all
seqpacket stuff in a single patch.
Thanks,
Stefano
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