litmus-rt-tegra.git/tools/virtio/linux, branch master

Patched in Tegra support.

2013-01-17T21:15:55+00:00

virtio/tools: add delayed interupt mode

2012-05-02T15:22:14+00:00

Signed-off-by: Michael S. Tsirkin

tools/virtio: stub out strong barriers

2012-02-28T07:13:16+00:00

The tool should never use them, abort if it does.

Signed-off-by: Michael S. Tsirkin

tools/virtio: add linux/hrtimer.h stub

2012-02-28T07:13:14+00:00

Make tool build after virtio changes broke it.

Signed-off-by: Michael S. Tsirkin

tools/virtio: add linux/module.h stub

2012-02-28T07:13:12+00:00

Make the tool build again after virtio changes broke it.

Signed-off-by: Michael S. Tsirkin

virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf

2012-01-12T05:14:42+00:00

Remove wrapper functions. This makes the allocation type explicit in
all callers; I used GPF_KERNEL where it seemed obvious, left it at
GFP_ATOMIC otherwise.

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

virtio: harsher barriers for rpmsg.

2012-01-12T05:14:42+00:00

We were cheating with our barriers; using the smp ones rather than the
real device ones.  That was fine, until rpmsg came along, which is
used to talk to a real device (a non-SMP CPU).

Unfortunately, just putting back the real barriers (reverting
d57ed95d) causes a performance regression on virtio-pci.  In
particular, Amos reports netbench's TCP_RR over virtio_net CPU
utilization increased up to 35% while throughput went down by up to
14%.

By comparison, this branch is in the noise.

Reference: https://lkml.org/lkml/2011/12/11/22

Signed-off-by: Rusty Russell

tools/virtio: virtio_test tool

2010-12-09T14:00:22+00:00

This is the userspace part of the tool: it includes a bunch of stubs for
linux APIs, somewhat simular to linuxsched. This makes it possible to
recompile the ring code in userspace.

A small test example is implemented combining this with vhost_test
module.

Signed-off-by: Michael S. Tsirkin