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authorMike Christie <michael.christie@oracle.com>2023-06-27 02:22:57 +0300
committerMichael S. Tsirkin <mst@redhat.com>2023-07-03 19:15:13 +0300
commit493b94bf5ae0f6d67bd3728e8c723800d99a13ad (patch)
tree4799428db9083896dfd6d00a0d48dbefee02dbea /drivers/vhost
parenta6fc04739be7cd8a744658fd2734906a6a0eb400 (diff)
downloadlinux-493b94bf5ae0f6d67bd3728e8c723800d99a13ad.tar.xz
vhost: convert poll work to be vq based
This has the drivers pass in their poll to vq mapping and then converts the core poll code to use the vq based helpers. In the next patches we will allow vqs to be handled by different workers, so to allow drivers to execute operations like queue, stop, flush, etc on specific polls/vqs we need to know the mappings. Signed-off-by: Mike Christie <michael.christie@oracle.com> Message-Id: <20230626232307.97930-8-michael.christie@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost')
-rw-r--r--drivers/vhost/net.c6
-rw-r--r--drivers/vhost/vhost.c8
-rw-r--r--drivers/vhost/vhost.h4
3 files changed, 12 insertions, 6 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 98bb957eb3b9..f2ed7167c848 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -1347,8 +1347,10 @@ static int vhost_net_open(struct inode *inode, struct file *f)
VHOST_NET_PKT_WEIGHT, VHOST_NET_WEIGHT, true,
NULL);
- vhost_poll_init(n->poll + VHOST_NET_VQ_TX, handle_tx_net, EPOLLOUT, dev);
- vhost_poll_init(n->poll + VHOST_NET_VQ_RX, handle_rx_net, EPOLLIN, dev);
+ vhost_poll_init(n->poll + VHOST_NET_VQ_TX, handle_tx_net, EPOLLOUT, dev,
+ vqs[VHOST_NET_VQ_TX]);
+ vhost_poll_init(n->poll + VHOST_NET_VQ_RX, handle_rx_net, EPOLLIN, dev,
+ vqs[VHOST_NET_VQ_RX]);
f->private_data = n;
n->page_frag.page = NULL;
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 2ea107e867a1..b6149ed8acb4 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -187,13 +187,15 @@ EXPORT_SYMBOL_GPL(vhost_work_init);
/* Init poll structure */
void vhost_poll_init(struct vhost_poll *poll, vhost_work_fn_t fn,
- __poll_t mask, struct vhost_dev *dev)
+ __poll_t mask, struct vhost_dev *dev,
+ struct vhost_virtqueue *vq)
{
init_waitqueue_func_entry(&poll->wait, vhost_poll_wakeup);
init_poll_funcptr(&poll->table, vhost_poll_func);
poll->mask = mask;
poll->dev = dev;
poll->wqh = NULL;
+ poll->vq = vq;
vhost_work_init(&poll->work, fn);
}
@@ -297,7 +299,7 @@ EXPORT_SYMBOL_GPL(vhost_vq_has_work);
void vhost_poll_queue(struct vhost_poll *poll)
{
- vhost_work_queue(poll->dev, &poll->work);
+ vhost_vq_work_queue(poll->vq, &poll->work);
}
EXPORT_SYMBOL_GPL(vhost_poll_queue);
@@ -508,7 +510,7 @@ void vhost_dev_init(struct vhost_dev *dev,
vhost_vq_reset(dev, vq);
if (vq->handle_kick)
vhost_poll_init(&vq->poll, vq->handle_kick,
- EPOLLIN, dev);
+ EPOLLIN, dev, vq);
}
}
EXPORT_SYMBOL_GPL(vhost_dev_init);
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index ac1f4924e548..f44eecd4fcf9 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -41,13 +41,15 @@ struct vhost_poll {
struct vhost_work work;
__poll_t mask;
struct vhost_dev *dev;
+ struct vhost_virtqueue *vq;
};
void vhost_work_init(struct vhost_work *work, vhost_work_fn_t fn);
bool vhost_work_queue(struct vhost_dev *dev, struct vhost_work *work);
void vhost_poll_init(struct vhost_poll *poll, vhost_work_fn_t fn,
- __poll_t mask, struct vhost_dev *dev);
+ __poll_t mask, struct vhost_dev *dev,
+ struct vhost_virtqueue *vq);
int vhost_poll_start(struct vhost_poll *poll, struct file *file);
void vhost_poll_stop(struct vhost_poll *poll);
void vhost_poll_queue(struct vhost_poll *poll);