linux-stable.git/drivers/vdpa, branch linux-6.9.y

vduse: Temporarily fail if control queue feature requested

2024-07-05T07:37:57+00:00

[ Upstream commit 56e71885b0349241c07631a7b979b61e81afab6a ]

Virtio-net driver control queue implementation is not safe
when used with VDUSE. If the VDUSE application does not
reply to control queue messages, it currently ends up
hanging the kernel thread sending this command.

Some work is on-going to make the control queue
implementation robust with VDUSE. Until it is completed,
let's fail features check if control-queue feature is
requested.

Signed-off-by: Maxime Coquelin 
Message-Id: <20240109111025.1320976-3-maxime.coquelin@redhat.com>
Signed-off-by: Michael S. Tsirkin 
Acked-by: Eugenio Pérez 
Reviewed-by: Xie Yongji 
Acked-by: Jason Wang 
Signed-off-by: Sasha Levin

vduse: validate block features only with block devices

2024-07-05T07:37:57+00:00

[ Upstream commit a115b5716fc9a64652aa9cb332070087178ffafa ]

This patch is preliminary work to enable network device
type support to VDUSE.

As VIRTIO_BLK_F_CONFIG_WCE shares the same value as
VIRTIO_NET_F_HOST_TSO4, we need to restrict its check
to Virtio-blk device type.

Acked-by: Jason Wang 
Reviewed-by: Xie Yongji 
Reviewed-by: Eugenio Pérez 
Signed-off-by: Maxime Coquelin 
Message-Id: <20240109111025.1320976-2-maxime.coquelin@redhat.com>
Signed-off-by: Michael S. Tsirkin 
Stable-dep-of: 56e71885b034 ("vduse: Temporarily fail if control queue feature requested")
Signed-off-by: Sasha Levin

vDPA: code clean for vhost_vdpa uapi

2024-04-22T21:07:13+00:00

This commit cleans up the uapi for vhost_vdpa by
better naming some of the enums which report blk
information to user space, and they are not
in any official releases yet.

Fixes: 1ac61ddfee93 ("vDPA: report virtio-blk flush info to user space")
Fixes: ae1374b7f72c ("vDPA: report virtio-block read-only info to user space")
Fixes: 330b8aea6924 ("vDPA: report virtio-block max segment size to user space")
Signed-off-by: Zhu Lingshan 
Message-Id: <20240415111047.1047774-1-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin

vDPA: report virtio-blk flush info to user space

2024-03-19T06:45:51+00:00

This commit reports whether a virtio-blk device
support cache flush command to user space

Signed-off-by: Zhu Lingshan 
Message-Id: <20240218185606.13509-11-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin

vDPA: report virtio-block read-only info to user space

2024-03-19T06:45:51+00:00

This commit report read-only information of
virtio-blk devices to user space.

Signed-off-by: Zhu Lingshan 
Message-Id: <20240218185606.13509-10-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin

vDPA: report virtio-block write zeroes configuration to user space

2024-03-19T06:45:51+00:00

This commits reports write zeroes configuration of
virtio-block devices to user space, includes:
1)maximum write zeroes sectors size
2)maximum write zeroes segment number

Signed-off-by: Zhu Lingshan 
Message-Id: <20240218185606.13509-9-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin

vDPA: report virtio-block discarding configuration to user space

2024-03-19T06:45:51+00:00

This commit reports virtio-blk discarding configuration
to user space,includes:
1) the maximum discard sectors
2) maximum number of discard segments for the block driver to use
3) the alignment for splitting a discarding request

Signed-off-by: Zhu Lingshan 
Message-Id: <20240218185606.13509-8-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin

vDPA: report virtio-block topology info to user space

2024-03-19T06:45:51+00:00

This commit allows vDPA reporting topology information of
virtio-blk devices to user space, includes:
1) the number of logical blocks per physical block
2) offset of first aligned logical block
3) suggested minimum I/O size in blocks
4) optimal (suggested maximum) I/O size in blocks

Signed-off-by: Zhu Lingshan 
Message-Id: <20240218185606.13509-7-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin

vDPA: report virtio-block MQ info to user space

2024-03-19T06:45:51+00:00

This commits allows vDPA reporting virtio-block multi-queue
configuration to user sapce.

Signed-off-by: Zhu Lingshan 
Message-Id: <20240218185606.13509-6-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin

vDPA: report virtio-block max segments in a request to user space

2024-03-19T06:45:51+00:00

This commit allows vDPA reporting the maximum number of
segments in a request of virtio-block devices to
user space.

Signed-off-by: Zhu Lingshan 
Message-Id: <20240218185606.13509-5-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin