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[PULL 4/8] vdpa: Add vhost_vdpa_net_load_mq
From: |
Jason Wang |
Subject: |
[PULL 4/8] vdpa: Add vhost_vdpa_net_load_mq |
Date: |
Tue, 27 Sep 2022 15:30:18 +0800 |
From: Eugenio Pérez <eperezma@redhat.com>
Same way as with the MAC, restore the expected number of queues at
device's start.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
net/vhost-vdpa.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index e799e74..3950e4f 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -400,6 +400,28 @@ static int vhost_vdpa_net_load_mac(VhostVDPAState *s,
const VirtIONet *n)
return 0;
}
+static int vhost_vdpa_net_load_mq(VhostVDPAState *s,
+ const VirtIONet *n)
+{
+ struct virtio_net_ctrl_mq mq;
+ uint64_t features = n->parent_obj.guest_features;
+ ssize_t dev_written;
+
+ if (!(features & BIT_ULL(VIRTIO_NET_F_MQ))) {
+ return 0;
+ }
+
+ mq.virtqueue_pairs = cpu_to_le16(n->curr_queue_pairs);
+ dev_written = vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_MQ,
+ VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET, &mq,
+ sizeof(mq));
+ if (unlikely(dev_written < 0)) {
+ return dev_written;
+ }
+
+ return *s->status != VIRTIO_NET_OK;
+}
+
static int vhost_vdpa_net_load(NetClientState *nc)
{
VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc);
@@ -418,6 +440,10 @@ static int vhost_vdpa_net_load(NetClientState *nc)
if (unlikely(r < 0)) {
return r;
}
+ r = vhost_vdpa_net_load_mq(s, n);
+ if (unlikely(r)) {
+ return r;
+ }
return 0;
}
--
2.7.4
- [PULL 0/8] Net patches, Jason Wang, 2022/09/27
- [PULL 1/8] e1000e: set RX desc status with DD flag in a separate operation, Jason Wang, 2022/09/27
- [PULL 4/8] vdpa: Add vhost_vdpa_net_load_mq,
Jason Wang <=
- [PULL 2/8] vdpa: Make VhostVDPAState cvq_cmd_in_buffer control ack type, Jason Wang, 2022/09/27
- [PULL 3/8] vdpa: extract vhost_vdpa_net_load_mac from vhost_vdpa_net_load, Jason Wang, 2022/09/27
- [PULL 5/8] vdpa: validate MQ CVQ commands, Jason Wang, 2022/09/27
- [PULL 6/8] virtio-net: Update virtio-net curr_queue_pairs in vdpa backends, Jason Wang, 2022/09/27
- [PULL 7/8] vdpa: Allow MQ feature in SVQ, Jason Wang, 2022/09/27
- [PULL 8/8] virtio: del net client if net_init_tap_one failed, Jason Wang, 2022/09/27
- Re: [PULL 0/8] Net patches, Stefan Hajnoczi, 2022/09/27