linux-stable.git/include/linux/virtio_blk.h, branch master

UAPI: (Scripted) Disintegrate include/linux

2012-10-13T09:46:48+00:00

Signed-off-by: David Howells 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Michael Kerrisk 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones

virtio-blk: return VIRTIO_BLK_F_FLUSH to header.

2012-07-30T04:00:52+00:00

This got renamed and clarified, but let's not break any userspace out there.

Signed-off-by: Rusty Russell

virtio-blk: allow toggling host cache between writeback and writethrough

2012-07-30T04:00:52+00:00

This patch adds support for the new VIRTIO_BLK_F_CONFIG_WCE feature,
which exposes the cache mode in the configuration space and lets the
driver modify it.  The cache mode is exposed via sysfs.

Even if the host does not support the new feature, the cache mode is
visible (thanks to the existing VIRTIO_BLK_F_WCE), but not modifiable.

Signed-off-by: Paolo Bonzini 
Signed-off-by: Rusty Russell

virtio: add full three-clause BSD text to headers.

2011-05-30T01:44:14+00:00

It's unclear to me if it's important, but it's obviously causing my
technical colleages some headaches and I'd hate such imprecision to
slow virtio adoption.

I've emailed this to all non-trivial contributors for approval, too.

Signed-off-by: Rusty Russell 
Acked-by: Grant Likely 
Acked-by: Ryan Harper 
Acked-by: Anthony Liguori 
Acked-by: Eric Van Hensbergen 
Acked-by: john cooper 
Acked-by: Aneesh Kumar K.V 
Acked-by: Christian Borntraeger 
Acked-by: Fernando Luis Vazquez Cao

Add virtio disk identification support

2010-05-19T12:45:40+00:00

Add virtio-blk device id (s/n) support via virtio request.

Signed-off-by: john cooper 
Signed-off-by: Rusty Russell

virtio_blk: add block topology support

2010-02-24T03:52:26+00:00

Allow reading various alignment values from the config page.  This
allows the guest to much better align I/O requests depending on the
storage topology.

Note that the formats for the config values appear a bit messed up,
but we follow the formats used by ATA and SCSI so they are expected in
the storage world.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Rusty Russell

virtio_blk: Revert serial number support

2009-10-22T06:09:30+00:00

This reverts "Add serial number support for virtio_blk, V4a".

Turns out that virtio_pci, lguest and s/390 all have an 8 bit limit
on virtio config space, so noone could ever use this.

This is coming back later in a cleaner form.

Signed-off-by: Rusty Russell 
Cc: john cooper 
Cc: Jens Axboe

virtio: let header files include virtio_ids.h

2009-10-22T06:09:28+00:00

Rusty,

commit 3ca4f5ca73057a617f9444a91022d7127041970a
    virtio: add virtio IDs file
moved all device IDs into a single file. While the change itself is
a very good one, it can break userspace applications. For example
if a userspace tool wanted to get the ID of virtio_net it used to
include virtio_net.h. This does no longer work, since virtio_net.h
does not include virtio_ids.h.
This patch moves all "#include " from the C
files into the header files, making the header files compatible with
the old ones.

In addition, this patch exports virtio_ids.h to userspace.

CC: Fernando Luis Vazquez Cao 
Signed-off-by: Christian Borntraeger 
Signed-off-by: Rusty Russell

virtio_blk: add support for cache flush

2009-09-23T12:56:36+00:00

Recent qemu has added a VIRTIO_BLK_F_FLUSH flag to advertise that the
virtual disk has a volatile write cache that needs to be flushed.  In case
we see this feature implement tell the Linux block layer about the fact
and use the new VIRTIO_BLK_T_FLUSH to flush the cache when required.  This
allows for an correct and simple implementation of write barriers.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Rusty Russell

virtio: add virtio IDs file

2009-09-23T12:56:32+00:00

Virtio IDs are spread all over the tree which makes assigning new IDs
bothersome. Putting them together should make the process less error-prone.

Signed-off-by: Fernando Luis Vazquez Cao 
Signed-off-by: Rusty Russell