From 2b8e3409edb8a17d89c3829cfa3d92bdfdd43c53 Mon Sep 17 00:00:00 2001 From: Cindy Lu Date: Thu, 22 Dec 2022 15:04:49 +0800 Subject: [PATCH 08/31] virtio-net: add support for configure interrupt MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Cindy Lu RH-MergeRequest: 132: vhost-vdpa: support config interrupt in vhost-vdpa RH-Bugzilla: 1905805 RH-Acked-by: Laurent Vivier RH-Acked-by: Eugenio Pérez RH-Acked-by: Miroslav Rezanina RH-Commit: [8/10] 1b125169bea6c81c508b154fa1bae68af153b312 (lulu6/qemu-kvm3) https://bugzilla.redhat.com/show_bug.cgi?id=1905805 Add functions to support configure interrupt in virtio_net Add the functions to support vhost_net_config_pending and vhost_net_config_mask. Signed-off-by: Cindy Lu Message-Id: <20221222070451.936503-9-lulu@redhat.com> Acked-by: Jason Wang Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin (cherry picked from commit 8aab0d1dbe90c7b5ac6672a1a09b0578178f5f4c) Signed-off-by: Cindy Lu --- hw/net/vhost_net-stub.c | 9 +++++++++ hw/net/vhost_net.c | 9 +++++++++ hw/net/virtio-net.c | 4 ++-- include/net/vhost_net.h | 2 ++ 4 files changed, 22 insertions(+), 2 deletions(-) diff --git a/hw/net/vhost_net-stub.c b/hw/net/vhost_net-stub.c index 9f7daae99c..c36f258201 100644 --- a/hw/net/vhost_net-stub.c +++ b/hw/net/vhost_net-stub.c @@ -82,6 +82,15 @@ void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev, { } +bool vhost_net_config_pending(VHostNetState *net) +{ + return false; +} + +void vhost_net_config_mask(VHostNetState *net, VirtIODevice *dev, bool mask) +{ +} + int vhost_net_notify_migration_done(struct vhost_net *net, char* mac_addr) { return -1; diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c index 043058ff43..6a55f5a473 100644 --- a/hw/net/vhost_net.c +++ b/hw/net/vhost_net.c @@ -478,6 +478,15 @@ void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev, vhost_virtqueue_mask(&net->dev, dev, idx, mask); } +bool vhost_net_config_pending(VHostNetState *net) +{ + return vhost_config_pending(&net->dev); +} + +void vhost_net_config_mask(VHostNetState *net, VirtIODevice *dev, bool mask) +{ + vhost_config_mask(&net->dev, dev, mask); +} VHostNetState *get_vhost_net(NetClientState *nc) { VHostNetState *vhost_net = 0; diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index bee35d6f9f..ec974f7a76 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -3323,7 +3323,7 @@ static bool virtio_net_guest_notifier_pending(VirtIODevice *vdev, int idx) */ if (idx == VIRTIO_CONFIG_IRQ_IDX) { - return false; + return vhost_net_config_pending(get_vhost_net(nc->peer)); } return vhost_net_virtqueue_pending(get_vhost_net(nc->peer), idx); } @@ -3355,9 +3355,9 @@ static void virtio_net_guest_notifier_mask(VirtIODevice *vdev, int idx, */ if (idx == VIRTIO_CONFIG_IRQ_IDX) { + vhost_net_config_mask(get_vhost_net(nc->peer), vdev, mask); return; } - vhost_net_virtqueue_mask(get_vhost_net(nc->peer), vdev, idx, mask); } diff --git a/include/net/vhost_net.h b/include/net/vhost_net.h index 40b9a40074..dbbd0dc04e 100644 --- a/include/net/vhost_net.h +++ b/include/net/vhost_net.h @@ -39,6 +39,8 @@ int vhost_net_set_config(struct vhost_net *net, const uint8_t *data, bool vhost_net_virtqueue_pending(VHostNetState *net, int n); void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev, int idx, bool mask); +bool vhost_net_config_pending(VHostNetState *net); +void vhost_net_config_mask(VHostNetState *net, VirtIODevice *dev, bool mask); int vhost_net_notify_migration_done(VHostNetState *net, char* mac_addr); VHostNetState *get_vhost_net(NetClientState *nc); -- 2.31.1