Re: [PATCH 00/28] Drivers: hv: Update the Vmbus protocol

Greg KH
2013-01-17T19:42:37Z

On Sat, Dec 01, 2012 at 06:46:00AM -0800, K. Y. Srinivasan wrote:
> The current vmbus protocol supported in the vmbus driver for Linux is
> a version of the protocol that shipped with Windows Server 2008. Since
> then a lot of enhancements have been made in the protocol to
> specifically address performance and scalability of the communication
> infrastructure between the host and the guest.
> This patch-set brings our driver to the Win8 (Windows Server 2012) level.
> Furthermore, this code will dynamically negotiate the most efficient
> protocol that the host can support - the same code can be deployed on all
> supported hosts (WS2008, WS2008R2 and WS2012).
> Following are some of the key features implemented in this patch-set:
>
> 1. More efficient signaling protocol between the host and the guest
> 2. Distribution of interrupt load across available CPUs in the guest;
> currently all vmbus interrupts are delivered to the boot CPU (CPU 0)
> in the guest.
> 3. Per- channel interrupt binding (as part of item 2)
> 4. More efficient demultiplexing of incoming interrupts
> 5. Per-channel signaling mechanism for host to guest communication

Nice work, all now applied.

greg k-h