Re: [PATCH v9 11/13] nvme-pci: Add a quirk for a pseudo CMB

From: Logan Gunthorpe
Date: Fri Oct 05 2018 - 11:40:05 EST




On 2018-10-05 1:10 a.m., Christoph Hellwig wrote:
> On Thu, Oct 04, 2018 at 03:27:45PM -0600, Logan Gunthorpe wrote:
>> Introduce a quirk to use CMB-like memory on older devices that have
>> an exposed BAR but do not advertise support for using CMBLOC and
>> CMBSIZE.
>>
>> We'd like to use some of these older cards to test P2P memory.
>
> I can't sat that I really like adding support for non-standardized
> "features" (vs bugs) in the nvme driver.
>

I can live with this patch being dropped.

Logan