linux-toradex.git/drivers/net/hyperv/netvsc_drv.c, branch v3.15-rc6 Linux kernel for Apalis and Colibri modules hyperv: Properly handle checksum offload 2014-04-30T20:12:23+00:00 KY Srinivasan kys@microsoft.com 2014-04-30T18:58:25+00:00 22041fb05b66387b2854f789d1e1f55c7d07b4f4 Do checksum offload only if the client of the driver wants checksum to be offloaded. In V1 version of this patch, I addressed comments from Stephen Hemminger <stephen@networkplumber.org> and Eric Dumazet <eric.dumazet@gmail.com>. In this version of the patch I have addressed comments from David Miller. This patch fixes a bug that is exposed in gateway scenarios. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Do checksum offload only if the client of the driver wants checksum to be
offloaded.

In V1 version of this patch, I  addressed comments from
Stephen Hemminger <stephen@networkplumber.org> and
Eric Dumazet <eric.dumazet@gmail.com>.

In this version of the patch I have addressed comments from
David Miller.

This patch fixes a bug that is exposed in gateway scenarios.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers: net: hyperv: Address UDP checksum issues 2014-04-11T19:15:12+00:00 KY Srinivasan kys@microsoft.com 2014-04-09T22:00:47+00:00 af9893a3dc790ae0c4d3e68adde12bc3cb9c63fa ws2008r2 does not support UDP checksum offload. Thus, we cannnot turn on UDP offload in the host. Also, on ws2012 and ws2012 r2, there appear to be an issue with UDP checksum offload. Fix this issue by computing the UDP checksum in the Hyper-V driver. Based on Dave Miller's comments, in this version, I have COWed the skb before modifying the UDP header (the checksum field). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
ws2008r2 does not support UDP checksum offload. Thus, we cannnot turn on
UDP offload in the host. Also, on ws2012 and ws2012 r2, there appear to be
an issue with UDP checksum offload.
Fix this issue by computing the UDP checksum in the Hyper-V driver.

Based on Dave Miller's comments, in this version, I have COWed the skb
before modifying the UDP header (the checksum field).

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers: net: hyperv: Allocate memory for all possible per-pecket information 2014-04-11T19:15:12+00:00 KY Srinivasan kys@microsoft.com 2014-04-09T22:00:45+00:00 4276372f0dcb191639fa79a171737f4239ded869 An outgoing packet can potentially need per-packet information for all the offloads and VLAN tagging. Fix this issue. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
An outgoing packet can potentially need per-packet information for
all the offloads and VLAN tagging. Fix this issue.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-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 2014-03-15T02:31:55+00:00 David S. Miller davem@davemloft.net 2014-03-15T02:31:55+00:00 85dcce7a73f1cc59f7a96fe52713b1630f4ca272 Conflicts: drivers/net/usb/r8152.c drivers/net/xen-netback/netback.c Both the r8152 and netback conflicts were simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net> 
Conflicts:
	drivers/net/usb/r8152.c
	drivers/net/xen-netback/netback.c

Both the r8152 and netback conflicts were simple overlapping
changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers: net: hyperv: Enable large send offload 2014-03-10T19:51:37+00:00 KY Srinivasan kys@microsoft.com 2014-03-09T03:23:18+00:00 77bf5487946254798ed7f265877939c703189f1e Enable segmentation offload. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Enable segmentation offload.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers: net: hyperv: Enable send side checksum offload 2014-03-10T19:51:37+00:00 KY Srinivasan kys@microsoft.com 2014-03-09T03:23:17+00:00 08cd04bf6d5b14ea90845b596d371bfa33eaba06 Enable send side checksum offload. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Enable send side checksum offload.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers: net: hyperv: Enable receive side IP checksum offload 2014-03-10T19:51:37+00:00 KY Srinivasan kys@microsoft.com 2014-03-09T03:23:16+00:00 e3d605ed441cf4d113f9a1cf9e1b3f7cabe0d781 Enable receive side checksum offload. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Enable receive side checksum offload.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers: net: hyperv: Cleanup the send path 2014-03-10T19:51:37+00:00 KY Srinivasan kys@microsoft.com 2014-03-09T03:23:14+00:00 8a00251a3682a23649cef36949c8019f8589c021 In preparation for enabling offloads, cleanup the send path. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
In preparation for enabling offloads, cleanup the send path.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers: net: hyperv: Enable scatter gather I/O 2014-03-10T19:51:36+00:00 KY Srinivasan kys@microsoft.com 2014-03-09T03:23:13+00:00 54a7357f7ac408be4ef4ca82900bd24cb6789f36 Cleanup the code and enable scatter gather I/O. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Cleanup the code and enable scatter gather I/O.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hyperv: Move state setting for link query 2014-03-06T01:40:25+00:00 Haiyang Zhang haiyangz@microsoft.com 2014-03-04T22:11:06+00:00 1b07da516ee25250f458c76c012ebe4cd677a84f It moves the state setting for query into rndis_filter_receive_response(). All callbacks including query-complete and status-callback are synchronized by channel->inbound_lock. This prevents pentential race between them. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
It moves the state setting for query into rndis_filter_receive_response().
All callbacks including query-complete and status-callback are synchronized
by channel->inbound_lock. This prevents pentential race between them.

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