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