diff mbox series

[RFC,v1,08/12] vhost/vsock: support MSG_ZEROCOPY for transport

Message ID e324f3f4-261f-52e4-4907-8344cae209c2@sberdevices.ru (mailing list archive)
State RFC
Headers show
Series vsock: MSG_ZEROCOPY flag support | expand

Checks

Context Check Description
netdev/tree_selection success Guessed tree name to be net-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch warning WARNING: Missing commit description - Add an appropriate one
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Arseniy Krasnov Feb. 6, 2023, 7:01 a.m. UTC
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
---
 drivers/vhost/vsock.c | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 60b9cafa3e31..afaa80203528 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -440,6 +440,11 @@  static bool vhost_vsock_more_replies(struct vhost_vsock *vsock)
 	return val < vq->num;
 }
 
+static bool vhost_transport_msgzerocopy_allow(void)
+{
+	return true;
+}
+
 static bool vhost_transport_seqpacket_allow(u32 remote_cid);
 
 static struct virtio_transport vhost_transport = {
@@ -485,6 +490,7 @@  static struct virtio_transport vhost_transport = {
 		.notify_send_post_enqueue = virtio_transport_notify_send_post_enqueue,
 		.notify_buffer_size       = virtio_transport_notify_buffer_size,
 
+		.msgzerocopy_allow        = vhost_transport_msgzerocopy_allow,
 	},
 
 	.send_pkt = vhost_transport_send_pkt,