lkml.org 
[lkml]   [2020]   [Mar]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 2/6] device/pci: add cmdmem cap to pci_dev
From
Date


On 3/31/2020 9:03 AM, Bjorn Helgaas wrote:
> On Mon, Mar 30, 2020 at 02:27:00PM -0700, Dave Jiang wrote:
>> Since the current accelerator devices do not have standard PCIe capability
>> enumeration for accepting ENQCMDS yet, for now an attribute of pdev->cmdmem has
>> been added to struct pci_dev. Currently a PCI quirk must be used for the
>> devices that have such cap until the PCI cap is standardized. Add a helper
>> function to provide the check if a device supports the cmdmem capability.
>>
>> Such capability is expected to be added to PCIe device cap enumeration in
>> the future.

Re-send. My misconfigured mail client caused mailing lists to bounce the
send.

>
> This needs some sort of thumbnail description of what "synchronous
> write notification" and "cmdmem" mean.

I will add more explanation.

>
> Do you have a pointer to a PCI-SIG ECR or similar?



Deferrable Memory Write (DMWr) ECR


https://members.pcisig.com/wg/PCI-SIG/document/13747

From what I'm told it should be available for public review by EOW.

>
> Your window size seems to be 85 or so. It would be easier if you used
> 80 and wrapped the commit log to fit in 75 columns so it looks decent
> when "git log" indents it by 4.
>
Ok I will fix.

\
 
 \ /
  Last update: 2020-03-31 23:44    [W:0.235 / U:1.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site