linux-toradex.git/drivers/net/caif/caif_virtio.c, branch v3.14.24

virtio: use size-based config accessors.

2013-10-17T00:25:37+00:00

This lets the transport do endian conversion if necessary, and insulates
the drivers from the difference.

Most drivers can use the simple helpers virtio_cread() and virtio_cwrite().

Signed-off-by: Rusty Russell

caif_virtio: Remove bouncing email addresses

2013-05-01T02:29:15+00:00

Remove our (soon to be) bouncing email addresses,
and update Dmitri's address.
Dmitry will take over as maintainer for CAIF from now on.

Cc: Vikram Arv 
Cc: Dmitry Tarnyagin 
Cc: Dmitry Tarnyagin 
Signed-off-by: Sjur Brændeland 
Signed-off-by: Rusty Russell 
Acked-by: Dmity Tarnyagin

caif_virtio: fix error return code in cfv_create_genpool()

2013-04-02T06:18:25+00:00

Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.

Signed-off-by: Wei Yongjun 
Acked-by: Sjur Brændeland 
Signed-off-by: Rusty Russell

caif_virtio: Check that vringh_config is not null

2013-03-24T03:59:15+00:00

Check that vringh_config is not NULL before using it.

Signed-off-by: Sjur Brændeland 
Signed-off-by: Rusty Russell

caif_virtio: Use vringh_notify_enable correctly

2013-03-24T03:59:14+00:00

Check on the correct return value from
vringh_notify_enable_kern(). It returns false if
more packets are available, not true.

Signed-off-by: Sjur Brændeland 
Signed-off-by: Rusty Russell

caif_virtio: use simplified virtqueue accessors.

2013-03-20T05:15:04+00:00

We never add buffers with input and output parts, so use the new accessors.

Cc: Sjur Brendeland 
Signed-off-by: Rusty Russell

caif_virtio: Introduce caif over virtio

2013-03-20T03:36:06+00:00

Add the CAIF Virtio shared memory driver for talking
to a modem.

This CAIF Link layer communicates to the modem over
shared memory. It is implemented as a virtio_driver.
The underlying virtio device is managed by the remoteproc
framework. The Virtio queue is used for transmitting data
to the modem, and the new vringh is used for receiving data.

Genalloc is used for managing the shared memory used for TX
data. The default dma-alloc-coherent allocator can only
allocate whole pages, and this wastes too much shared memory.

Flow control is implemented by stopping the TX-queues if the
virtio queues go full or we run out of memory. Queued are
reopened when queues are below the watermark.

NAPI is used in RX path, and a dedicated tasklet is used
for releasing TX buffers.

Signed-off-by: Erwan Yvin 
Acked-by: David S. Miller 
Signed-off-by: Rusty Russell  (minor fixes)