Re: Kernel fast memory registration API proposal [RFC]

[Sagi Grimberg <sagig-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>]

On 7/15/2015 6:05 AM, Doug Ledford wrote:
> On 07/14/2015 01:08 PM, Jason Gunthorpe wrote:
>> On Tue, Jul 14, 2015 at 07:46:50PM +0300, Sagi Grimberg wrote:
>>> Which drivers doesn't support FRWR that we need to do other things?
>>> ipath - depracated
>>
>> We have permission to move this to staging and then RM it, so yay!
>
> Correct.
>
>>> mthca - soon to be deprecated
>>
>> This one I have a problem with. There is alot of mthca hardware out
>> there, it feels wrong to nuke it.. If we can continue to support the
>> FMR scheme it uses transparently, that would be excellent.
>>
>> I'm not hearing a strong reason why that shouldn't be the case...
>
> I'm not so sure about deprecating mthca either.  There are still a
> number of people I know that like to buy cheap SDR/DDR switches on EBay
> and pair them with cheap mthca cards and have cheap 10/20GBit/s home
> networks.  We have a couple people inside Red Hat that occasionally tell
> people what to look for on EBay to do just this.

I didn't mean deprecate it altogether, I meant that I don't think we
should do backflips for a single (old) driver.
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