virtio: simplify config mechanism.
commita586d4f6016f7139d8c26df0e6927131168d3b5b
authorRusty Russell <rusty@rustcorp.com.au>
Tue, 5 Feb 2008 04:49:56 +0000 (4 23:49 -0500)
committerRusty Russell <rusty@rustcorp.com.au>
Mon, 4 Feb 2008 12:49:57 +0000 (4 23:49 +1100)
tree1c47e1a6b6b8fb18baa42f32980f29c4ae9cbbdc
parentf35d9d8aae08940b7fdd1bb8110619da2ece6b28
virtio: simplify config mechanism.

Previously we used a type/len pair within the config space, but this
seems overkill.  We now simply define a structure which represents the
layout in the config space: the config space can now only be extended
at the end.

The main driver-visible changes:
1) We indicate what fields are present with an explicit feature bit.
2) Virtqueues are explicitly numbered, and not in the config space.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Documentation/lguest/lguest.c
drivers/block/virtio_blk.c
drivers/char/virtio_console.c
drivers/lguest/lguest_device.c
drivers/net/virtio_net.c
drivers/virtio/virtio.c
include/linux/lguest_launcher.h
include/linux/virtio_blk.h
include/linux/virtio_config.h
include/linux/virtio_net.h
net/9p/trans_virtio.c