linux-stable.git/drivers/net/hyperv/netvsc.c, branch linux-3.5.y

net/hyperv: Use wait_event on outstanding sends during device removal

2012-06-04T17:50:38+00:00

Change the busy-waiting/udelay to wait_event on outstanding sends.

Signed-off-by: Haiyang Zhang 
Reviewed-by: K. Y. Srinivasan 
Signed-off-by: David S. Miller

net/hyperv: Add flow control based on hi/low watermark

2012-04-03T21:47:15+00:00

In the existing code, we only stop queue when the ringbuffer is full,
so the current packet has to be dropped or retried from upper layer.

This patch stops the tx queue when available ringbuffer is below
the low watermark. So the ringbuffer still has small amount of space
available for the current packet. This will reduce the overhead of
retries on sending.

Signed-off-by: Haiyang Zhang 
Reviewed-by: K. Y. Srinivasan 
Signed-off-by: David S. Miller

net/hyperv: Add support for vlan trunking from guests

2012-03-13T00:06:48+00:00

With this feature, a Linux guest can now configure multiple vlans through
a single synthetic NIC on Win8 Hyper-V host.

Signed-off-by: Haiyang Zhang 
Reviewed-by: K. Y. Srinivasan 
Signed-off-by: David S. Miller

net/hyperv: Add support for jumbo frame up to 64KB

2012-01-05T00:13:05+00:00

Allow the user set the MTU up to 65536 for Linux guests running on
Hyper-V 2008 R2 or later.

Signed-off-by: Haiyang Zhang 
Signed-off-by: K. Y. Srinivasan 
Signed-off-by: Greg Kroah-Hartman

net/hyperv: Add NETVSP protocol version negotiation

2012-01-05T00:13:05+00:00

Automatically negotiate the highest protocol version mutually recognized by
both host and guest.

Signed-off-by: Haiyang Zhang 
Signed-off-by: K. Y. Srinivasan 
Signed-off-by: Greg Kroah-Hartman

net/hyperv: Remove unnecessary kmap_atomic in netvsc driver

2012-01-05T00:13:05+00:00

__get_free_pages() doesn't return HI memory, so the memory is always mapped.
kmap_atomic() is not necessary here. This patch removes the kmap_atomic()
calls and related code for locking and page manipulation.

Signed-off-by: Haiyang Zhang 
Signed-off-by: K. Y. Srinivasan 
Signed-off-by: Greg Kroah-Hartman

net/hyperv: Fix the stop/wake queue mechanism

2011-12-10T00:26:50+00:00

The ring buffer is only used to pass meta data for outbound packets. The
actual payload is accessed by DMA from the host. So the stop/wake queue
mechanism based on counting and comparing number of pages sent v.s. number
of pages in the ring buffer is wrong. Also, there is a race condition in
the stop/wake queue calls, which can stop xmit queue forever.

The new stop/wake queue mechanism is based on the actual bytes used by
outbound packets in the ring buffer. The check for number of outstanding
sends after stop queue prevents the race condition that can cause wake
queue happening earlier than stop queue.

Signed-off-by: Haiyang Zhang 
Signed-off-by: K. Y. Srinivasan 
Reported-by: Long Li 
Signed-off-by: Greg Kroah-Hartman

net/hyperv: Fix long lines in netvsc.c

2011-12-01T18:25:25+00:00

Signed-off-by: Haiyang Zhang 
Signed-off-by: K. Y. Srinivasan 
Signed-off-by: Greg Kroah-Hartman

staging: hv: move hv_netvsc out of staging area

2011-11-29T07:12:36+00:00

hv_netvsc has been reviewed on netdev mailing list on 6/09/2011.
All recommended changes have been made. We are requesting to move
it out of staging area.

Signed-off-by: Haiyang Zhang 
Signed-off-by: KY Srinivasan 
Signed-off-by: Mike Sterling 
Acked-by: Stephen Hemminger 
Acked-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman