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| author | Hawkins Jiawei <yin31149@gmail.com> | 2023-08-29 13:54:43 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-10-04 04:54:23 -0400 |
| commit | b0de17a2e28de477e09e77a587fcbeafbbc897c4 (patch) | |
| tree | b30f871659217fd4af1c9a59a52eb08ec2996577 /net | |
| parent | f13f5f6412fc51574c961f39dbd625357948282b (diff) | |
| download | qemu-b0de17a2e28de477e09e77a587fcbeafbbc897c4.zip qemu-b0de17a2e28de477e09e77a587fcbeafbbc897c4.tar.gz qemu-b0de17a2e28de477e09e77a587fcbeafbbc897c4.tar.bz2 | |
vhost: Add count argument to vhost_svq_poll()
Next patches in this series will no longer perform an
immediate poll and check of the device's used buffers
for each CVQ state load command. Instead, they will
send CVQ state load commands in parallel by polling
multiple pending buffers at once.
To achieve this, this patch refactoring vhost_svq_poll()
to accept a new argument `num`, which allows vhost_svq_poll()
to wait for the device to use multiple elements,
rather than polling for a single element.
Signed-off-by: Hawkins Jiawei <yin31149@gmail.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <950b3bfcfc5d446168b9d6a249d554a013a691d4.1693287885.git.yin31149@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/vhost-vdpa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 90beda4..5808d1b 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -645,7 +645,7 @@ static ssize_t vhost_vdpa_net_cvq_add(VhostVDPAState *s, size_t out_len, * descriptor. Also, we need to take the answer before SVQ pulls by itself, * when BQL is released */ - return vhost_svq_poll(svq); + return vhost_svq_poll(svq, 1); } static ssize_t vhost_vdpa_net_load_cmd(VhostVDPAState *s, uint8_t class, |