From f64c7cda6973b0ea7477d999b11139306b3d04d5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= Date: Tue, 6 Sep 2022 17:07:16 +0200 Subject: [PATCH] vdpa: Add vhost_vdpa_net_load_mq MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Same way as with the MAC, restore the expected number of queues at device's start. Signed-off-by: Eugenio Pérez Signed-off-by: Jason Wang --- net/vhost-vdpa.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index e799e744cd..3950e4f25d 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; }