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Re: Follow-up on the CXL discussion at OFTC

From: Ben Widawsky
Subject: Re: Follow-up on the CXL discussion at OFTC
Date: Thu, 18 Nov 2021 19:25:41 -0800

On 21-11-19 02:29:51, Shreyas Shah wrote:
> Hi Ben
> Are you planning to add the CXL2.0 switch inside QEMU or already added in one 
> of the version? 

>From me, there are no plans for QEMU anything until/unless upstream thinks it
will merge the existing patches, or provide feedback as to what it would take to
get them merged. If upstream doesn't see a point in these patches, then I really
don't see much value in continuing to further them. Once hardware comes out, the
value proposition is certainly less.

Having said that, once I get the port/region patches merged for the Linux
driver, I do intend to go back and try to implement a basic switch so that we
can test those flows.

I admit, I'm curious why you're interested in switches.

> Regards,
> Shreyas
> -----Original Message-----
> From: Ben Widawsky <ben.widawsky@intel.com> 
> Sent: Thursday, November 18, 2021 5:48 PM
> To: Shreyas Shah <shreyas.shah@elastics.cloud>
> Cc: Saransh Gupta1 <saransh@ibm.com>; Jonathan Cameron 
> <Jonathan.Cameron@huawei.com>; linux-cxl@vger.kernel.org; 
> qemu-devel@nongnu.org
> Subject: Re: Follow-up on the CXL discussion at OFTC
> On 21-11-18 22:52:56, Shreyas Shah wrote:
> > Hello Folks,
> > 
> > Any plan to add CXL2.0 switch ports in QEMU? 
> What's your definition of plan?
> > 
> > Regards,
> > Shreyas
> [snip]

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