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| author | Greg Kurz <gkurz@linux.vnet.ibm.com> | 2015-04-24 14:50:36 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-06-01 15:48:56 +0200 |
| commit | 8b8e658b16336f0f50aba733f51db636ef121f50 (patch) | |
| tree | 07e2259234babcd1c2f535ff43e1bede107f74d2 /drivers/virtio/virtio_pci_common.h | |
| parent | 2751c9882b947292fcfb084c4f604e01724af804 (diff) | |
| download | op-kernel-dev-8b8e658b16336f0f50aba733f51db636ef121f50.zip op-kernel-dev-8b8e658b16336f0f50aba733f51db636ef121f50.tar.gz | |
macvtap/tun: cross-endian support for little-endian hosts
The VNET_LE flag was introduced to fix accesses to virtio 1.0 headers
that are always little-endian. It can also be used to handle the special
case of a legacy little-endian device implemented by a big-endian host.
Let's add a flag and ioctls for big-endian devices as well. If both flags
are set, little-endian wins.
Since this is isn't a common usecase, the feature is controlled by a kernel
config option (not set by default).
Both macvtap and tun are covered by this patch since they share the same
API with userland.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'drivers/virtio/virtio_pci_common.h')
0 files changed, 0 insertions, 0 deletions
