linux-stable.git/include/linux/virtio_config.h, branch v5.9.8 Linux kernel stable tree virtio_config: fix up warnings on parisc 2020-08-05T23:56:03+00:00 Michael S. Tsirkin mst@redhat.com 2020-08-05T23:55:50+00:00 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 
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 space 2020-08-05T15:08:41+00:00 Michael S. Tsirkin mst@redhat.com 2020-08-05T11:29:12+00:00 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> 
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_feature 2020-08-05T15:08:41+00:00 Michael S. Tsirkin mst@redhat.com 2020-08-05T13:17:38+00:00 035ce4210be1257dd417785ff7818b5c0f2205fb Mirrors virtio_cread_feature but for LE fields. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> 
Mirrors virtio_cread_feature but for LE fields.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: LE config space accessors 2020-08-05T15:08:41+00:00 Michael S. Tsirkin mst@redhat.com 2020-08-04T21:33:08+00:00 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> 
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) 2020-08-05T15:08:41+00:00 Michael S. Tsirkin mst@redhat.com 2020-07-10T11:55:52+00:00 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> 
_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 _Generic 2020-08-05T15:08:40+00:00 Michael S. Tsirkin mst@redhat.com 2020-08-03T20:08:11+00:00 a5b90f2db8e0ef6504695cbd36a65fd8296338ee Min compiler version has been raised, so that's ok now. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> 
Min compiler version has been raised, so that's ok now.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: cread/write cleanup 2020-08-05T15:08:40+00:00 Michael S. Tsirkin mst@redhat.com 2020-07-30T20:12:40+00:00 cacaf775c699e9e8473491197587535f1c10ac8f Use vars of the correct type instead of casting. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> 
Use vars of the correct type instead of casting.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_config: disallow native type fields 2020-08-05T15:08:40+00:00 Michael S. Tsirkin mst@redhat.com 2020-07-10T11:55:52+00:00 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> 
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 space 2020-08-05T13:30:19+00:00 Michael S. Tsirkin mst@redhat.com 2020-07-10T07:20:21+00:00 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> 
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_quirk 2020-08-03T20:11:42+00:00 Michael S. Tsirkin mst@redhat.com 2020-06-24T23:17:04+00:00 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> 
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>