linux.git/drivers/hv/connection.c, branch v3.10 Linux kernel source tree Drivers: hv: Cleanup and consolidate reporting of build/version info 2013-01-17T19:41:50+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:59+00:00 3bacaf0ce106d9caca75f64a58f3b938b070df29 Now, cleanup and consolidate reporting of host and vmbus version numbers. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Now, cleanup and consolidate reporting of host and vmbus version numbers.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Enable protocol negotiation with win8 hosts 2013-01-17T19:41:49+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:56+00:00 2a5c43a821b3b26e6af1cdb987b4daeba6f13a6f Now that we have implemented all of the Win8 (WS2012) functionality, negotiate Win8 protocol with the host. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Now that we have implemented all of the Win8 (WS2012) functionality, negotiate
Win8 protocol with the host.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Modify the interrupt handling code to support win8 and beyond 2013-01-17T19:39:15+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:49+00:00 6552ecd70cc6f31f4bb9d63f36a7dd023db3e519 Starting with Win8 (WS2012), the event page can be used to directly get the channel ID that needs servicing. Modify the channel event handling code to take advantage of this feature. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Starting with Win8 (WS2012), the event page can be used to directly get the
channel ID that needs servicing. Modify the channel event handling code
to take advantage of this feature.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Cleanup vmbus_set_event() to support win7 and beyond 2013-01-17T19:34:37+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:46+00:00 3be77774017fc3c7dd0b434265dfa417aac23545 On win7 (ws2008 R2) and beyond, we have the notion of having dedicated interrupts on a per-channel basis. When a channel has a dedicated interrupt assigned, there is no need to set the interrupt bit in the shared page. Implement this optimization. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
On win7 (ws2008 R2) and beyond, we have the notion of having dedicated interrupts on
a per-channel basis. When a channel has a dedicated interrupt assigned, there is no need
to set the interrupt bit in the shared page. Implement this optimization.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Move vmbus version definitions to hyperv.h 2013-01-17T19:34:37+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:44+00:00 eafa7072e7cd806dff42b705284ca26189e527a4 To support version specific optimization in various vmbus drivers, move the vmbus definitions to the public header file. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
To support version specific optimization in various vmbus drivers,
move the vmbus definitions to the public header file.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Change the signature of vmbus_set_event() 2013-01-17T19:34:36+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:43+00:00 21c3bef5db359596806f19fee6c3ec0c033881d0 In preparation for supporting a per-connection signaling mechanism, change the signature of vmbus_set_event(). This change is also needed to implement other aspects of the signaling optimization. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
In preparation for supporting a per-connection signaling mechanism,
change the signature of vmbus_set_event(). This change is also
needed to implement other aspects of the signaling optimization.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Change the signature for hv_signal_event() 2013-01-17T19:34:36+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:42+00:00 1f42248d724a413baaafd5f83a8f4746bc6f51a5 In preparation for implementing a per-connection signaling framework, change the signature of the function hv_signal_event(). The current code uses a global handle for signaling the host. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
In preparation for implementing a per-connection signaling framework,
change the signature of the function hv_signal_event(). The current
code uses a global handle for signaling the host.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Save and export negotiated vmbus version 2013-01-17T19:34:36+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:41+00:00 37f7278b81a9ab9b76cf4d716ba420444ca4a616 Export the negotiated vmbus version as this may be useful for individual drivers. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Export the negotiated vmbus version as this may be useful for
individual drivers.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Support handling multiple VMBUS versions 2013-01-17T19:34:36+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:38+00:00 610071c38463998d5a66388ff9956aaeb24b49a8 The current code hard coded the vmbus version independent of the host it was running on. Add code to dynamically negotiate the most appropriate version. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The current code hard coded the vmbus version independent of the host
it was running on. Add code to dynamically negotiate the most appropriate
version.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers: hv: Optimize signaling in the read path 2013-01-17T18:46:39+00:00 K. Y. Srinivasan kys@microsoft.com 2012-12-01T14:46:35+00:00 f878f3d59ed26f489add852ed6d5c8e5f3bbb1aa Now that we have the infratructure for correctly determining when we should signal the host; optimize the signaling on the read side - signaling the guest from the host. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Now that we have the infratructure for correctly determining when we
should signal the host; optimize the signaling on the read side -
signaling the guest from the host.

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