user/sven/linux.git/include/linux/virtio_config.h, branch v5.9.8Linux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v5.9.82020-08-05T23:56:03Zvirtio_config: fix up warnings on parisc2020-08-05T23:56:03ZMichael S. Tsirkinmst@redhat.com2020-08-05T23:55:50Zurn:sha1:c84f91e2622235bb742f9f20b8675cf095157026
Apparently, on parisc le16_to_cpu returns an int. virtio_cread_le
is very strict about type sizes so it causes a warning.
Fix it up by casting to the correct type.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20200805235550.1451637-1-mst@redhat.com
virtio_config: drop LE option from config space2020-08-05T15:08:41ZMichael S. Tsirkinmst@redhat.com2020-08-05T11:29:12Zurn:sha1:83eb9db95eb453f1db651909ad4598c3d44ef1e1
All drivers now use virtio_cread/write_le for LE config
space fields. Drop LE option from virtio_cread/write, only leaving
the option to access transitional fields.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: add virtio_cread_le_feature2020-08-05T15:08:41ZMichael S. Tsirkinmst@redhat.com2020-08-05T13:17:38Zurn:sha1:035ce4210be1257dd417785ff7818b5c0f2205fb
Mirrors virtio_cread_feature but for LE fields.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: LE config space accessors2020-08-05T15:08:41ZMichael S. Tsirkinmst@redhat.com2020-08-04T21:33:08Zurn:sha1:e598960ff5e511b76a0eb8dff25207d35c2442c8
To be used by modern code, as well as to handle LE only fields such as
balloon.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: disallow native type fields (again)2020-08-05T15:08:41ZMichael S. Tsirkinmst@redhat.com2020-07-10T11:55:52Zurn:sha1:14191c15ab9d87e60d2ebbfbf6df83d546152af1
_Generic version allowed __uXX types but that is no longer necessary:
Transitional devices should all use __virtioXX types (and __leXX for
fields not present in the legacy devices).
Modern ones should use __leXX.
_uXX type would be a bug.
Let's prevent that.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: rewrite using _Generic2020-08-05T15:08:40ZMichael S. Tsirkinmst@redhat.com2020-08-03T20:08:11Zurn:sha1:a5b90f2db8e0ef6504695cbd36a65fd8296338ee
Min compiler version has been raised, so that's ok now.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: cread/write cleanup2020-08-05T15:08:40ZMichael S. Tsirkinmst@redhat.com2020-07-30T20:12:40Zurn:sha1:cacaf775c699e9e8473491197587535f1c10ac8f
Use vars of the correct type instead of casting.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: disallow native type fields2020-08-05T15:08:40ZMichael S. Tsirkinmst@redhat.com2020-07-10T11:55:52Zurn:sha1:4a04cfb0eb5e00432f9ff978f2b81bd1736e85db
Transitional devices should all use __virtioXX types (and __leXX for
fields not present in legacy devices).
Modern ones should use __leXX.
_uXX type would be a bug.
Let's prevent that.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio: allow __virtioXX, __leXX in config space2020-08-05T13:30:19ZMichael S. Tsirkinmst@redhat.com2020-07-10T07:20:21Zurn:sha1:a4235ec06acf05c58081700cda02dcd480d9e9cb
Currently all config space fields are of the type __uXX.
This confuses people and some drivers (notably vdpa)
access them using CPU endian-ness - which only
works well for legacy or LE platforms.
Update virtio_cread/virtio_cwrite macros to allow __virtioXX
and __leXX field types. Follow-up patches will convert
config space to use these types.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
virtio: virtio_has_iommu_quirk -> virtio_has_dma_quirk2020-08-03T20:11:42ZMichael S. Tsirkinmst@redhat.com2020-06-24T23:17:04Zurn:sha1:24b6842ade6925199e182988259761504aacfbc0
Now that the corresponding feature bit has been renamed,
rename the quirk too - it's about special ways to
do DMA, not necessarily about the IOMMU.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>