linux-stable.git/drivers/net/hyperv/netvsc.c, branch linux-3.7.y Linux kernel stable tree hyperv: Report actual status in receive completion packet 2012-10-02T18:39:31+00:00 Haiyang Zhang haiyangz@microsoft.com 2012-10-02T05:30:23+00:00 63f6921d300c6fbdca3d0e73dcc24b4e5e4dced2 The existing code always reports NVSP_STAT_SUCCESS. This patch adds the mechanism to report failure when it happens. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
The existing code always reports NVSP_STAT_SUCCESS. This patch adds the
mechanism to report failure when it happens.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hyperv: Remove extra allocated space for recv_pkt_list elements 2012-10-02T18:39:30+00:00 Haiyang Zhang haiyangz@microsoft.com 2012-10-02T05:30:22+00:00 6562640bd3b368a7ffb1caa61c82abe6e9d54b3b The receive code path doesn't use the page buffer, so remove the extra allocated space here. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
The receive code path doesn't use the page buffer, so remove the
extra allocated space here.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hyperv: Move wait completion msg code into rndis_filter_halt_device() 2012-08-03T23:51:11+00:00 Haiyang Zhang haiyangz@microsoft.com 2012-08-03T09:32:18+00:00 ae9e63bb2c0cf5437d9d13d822b27149336c6e0e We need to wait for send_completion msg before put_rndis_request() at the end of rndis_filter_halt_device(). Otherwise, netvsc_send_completion() may reference freed memory which is overwritten, and cause panic. Reported-by: Long Li <longli@microsoft.com> Reported-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
We need to wait for send_completion msg before put_rndis_request() at
the end of rndis_filter_halt_device(). Otherwise, netvsc_send_completion()
may reference freed memory which is overwritten, and cause panic.

Reported-by: Long Li <longli@microsoft.com>
Reported-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-06T22:06:41+00:00 David S. Miller davem@davemloft.net 2012-06-06T22:06:41+00:00 c1864cfb80a64933c221e33fed9611356c031944 






drivers: net: Remove casts to same type
2012-06-06T16:31:33+00:00

Joe Perches
joe@perches.com

2012-06-04T12:44:18+00:00

c2fd03a0115a244c5f622453b2b1f038ed5700a6

Adding casts of objects to the same type is unnecessary
and confusing for a human reader.

For example, this cast:

        int y;
        int *p = (int *)&y;

I used the coccinelle script below to find and remove these
unnecessary casts.  I manually removed the conversions this
script produces of casts with __force, __iomem and __user.

@@
type T;
T *p;
@@

-       (T *)p
+       p

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>





Adding casts of objects to the same type is unnecessary
and confusing for a human reader.

For example, this cast:

        int y;
        int *p = (int *)&y;

I used the coccinelle script below to find and remove these
unnecessary casts.  I manually removed the conversions this
script produces of casts with __force, __iomem and __user.

@@
type T;
T *p;
@@

-       (T *)p
+       p

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>







net/hyperv: Use wait_event on outstanding sends during device removal
2012-06-04T17:50:38+00:00

Haiyang Zhang
haiyangz@microsoft.com

2012-06-04T06:42:38+00:00

dc5cd894cace7bda4a743487a9f87d59a3f0a095

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

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>





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

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>







net/hyperv: Add flow control based on hi/low watermark
2012-04-03T21:47:15+00:00

Haiyang Zhang
haiyangz@microsoft.com

2012-03-27T13:20:45+00:00

33be96e47cc27f2f1a753a0707b02a73df8c8d46

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 <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>





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 <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>







net/hyperv: Add support for vlan trunking from guests
2012-03-13T00:06:48+00:00

Haiyang Zhang
haiyangz@microsoft.com

2012-03-12T10:20:50+00:00

1f5f3a75e216fe771b8d6805e0bb2f43595a6ee1

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 <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>





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 <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>







net/hyperv: Add support for jumbo frame up to 64KB
2012-01-05T00:13:05+00:00

Haiyang Zhang
haiyangz@microsoft.com

2011-12-15T21:45:17+00:00

4d447c9a6ebc0142d320f075c5bac6d202a79fd4

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 <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>





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 <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>







net/hyperv: Add NETVSP protocol version negotiation
2012-01-05T00:13:05+00:00

Haiyang Zhang
haiyangz@microsoft.com

2011-12-15T21:45:16+00:00

f157e78de5923dfb209355f3005ce1b5d64f7998

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

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>





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

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>