From: Cindy Lu <lulu@redhat.com>
To: mst@redhat.com, armbru@redhat.com, eblake@redhat.com,
cohuck@redhat.com, jasowang@redhat.com
Cc: mhabets@solarflare.com, qemu-devel@nongnu.org,
rob.miller@broadcom.com, saugatm@xilinx.com, lulu@redhat.com,
hanand@xilinx.com, hch@infradead.org, eperezma@redhat.com,
jgg@mellanox.com, shahafs@mellanox.com, kevin.tian@intel.com,
parav@mellanox.com, vmireyno@marvell.com,
cunming.liang@intel.com, gdawar@xilinx.com, jiri@mellanox.com,
xiao.w.wang@intel.com, stefanha@redhat.com,
zhihong.wang@intel.com, aadam@redhat.com, rdunlap@infradead.org,
maxime.coquelin@redhat.com, lingshan.zhu@intel.com
Subject: [PATCH v3 03/13] virtio-bus: introduce queue_enabled method
Date: Wed, 1 Jul 2020 17:24:39 +0800 [thread overview]
Message-ID: <20200701092449.17451-4-lulu@redhat.com> (raw)
In-Reply-To: <20200701092449.17451-1-lulu@redhat.com>
From: Jason Wang <jasowang@redhat.com>
This patch introduces queue_enabled() method which allows the
transport to implement its own way to report whether or not a queue is
enabled.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Cindy Lu <lulu@redhat.com>
---
hw/virtio/virtio.c | 6 ++++++
include/hw/virtio/virtio-bus.h | 4 ++++
2 files changed, 10 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index cc9c9dc162..5bd2a2f621 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -3286,6 +3286,12 @@ hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n)
bool virtio_queue_enabled(VirtIODevice *vdev, int n)
{
+ BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
+ VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
+
+ if (k->queue_enabled) {
+ return k->queue_enabled(qbus->parent, n);
+ }
return virtio_queue_get_desc_addr(vdev, n) != 0;
}
diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h
index 38c9399cd4..0f6f215925 100644
--- a/include/hw/virtio/virtio-bus.h
+++ b/include/hw/virtio/virtio-bus.h
@@ -83,6 +83,10 @@ typedef struct VirtioBusClass {
*/
int (*ioeventfd_assign)(DeviceState *d, EventNotifier *notifier,
int n, bool assign);
+ /*
+ * Whether queue number n is enabled.
+ */
+ bool (*queue_enabled)(DeviceState *d, int n);
/*
* Does the transport have variable vring alignment?
* (ie can it ever call virtio_queue_set_align()?)
--
2.21.1
next prev parent reply other threads:[~2020-07-01 9:28 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-01 9:24 [PATCH v3 00/13] vDPA support in qemu Cindy Lu
2020-07-01 9:24 ` [PATCH v3 01/13] net: introduce qemu_get_peer Cindy Lu
2020-07-01 9:24 ` [PATCH v3 02/13] vhost_net: use the function qemu_get_peer Cindy Lu
2020-07-01 9:24 ` Cindy Lu [this message]
2020-07-01 9:24 ` [PATCH v3 04/13] virtio-pci: implement queue_enabled method Cindy Lu
2020-07-01 9:24 ` [PATCH v3 05/13] vhost: check the existence of vhost_set_iotlb_callback Cindy Lu
2020-07-01 9:24 ` [PATCH v3 06/13] vhost: introduce new VhostOps vhost_dev_start Cindy Lu
2020-07-01 9:24 ` [PATCH v3 07/13] vhost: implement vhost_dev_start method Cindy Lu
2020-07-01 9:24 ` [PATCH v3 08/13] vhost: introduce new VhostOps vhost_vq_get_addr Cindy Lu
2020-07-01 9:24 ` [PATCH v3 09/13] vhost: implement vhost_vq_get_addr method Cindy Lu
2020-07-01 9:24 ` [PATCH v3 10/13] vhost: introduce new VhostOps vhost_force_iommu Cindy Lu
2020-07-01 9:24 ` [PATCH v3 11/13] vhost: implement vhost_force_iommu method Cindy Lu
2020-07-01 9:24 ` [PATCH v3 12/13] vhost-vdpa: introduce vhost-vdpa backend Cindy Lu
2020-07-01 9:24 ` [PATCH v3 13/13] vhost-vdpa: introduce vhost-vdpa net client Cindy Lu
2020-07-01 14:28 ` Eric Blake
2020-07-01 15:20 ` Michael S. Tsirkin
2020-07-02 2:39 ` Cindy Lu
2020-07-01 9:53 ` [PATCH v3 00/13] vDPA support in qemu no-reply
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