[Intel-wired-lan] [PATCH next-queue v3 2/3] igc: Enable PCIe PTM

[Vinicius Costa Gomes]

Bjorn Helgaas <helgaas at kernel.org> writes:

> On Mon, Mar 22, 2021 at 09:18:21AM -0700, Vinicius Costa Gomes wrote:
>> In practice, enabling PTM also sets the enabled_ptm flag in the PCI
>> device, the flag will be used for detecting if PTM is enabled before
>> adding support for the SYSOFFSET_PRECISE ioctl() (which is added by
>> implementing the getcrosststamp() PTP function).
>
> I think you're referring to the "pci_dev.ptm_enabled" flag.  I'm not
> sure what the connection to this patch is.  The SYSOFFSET_PRECISE
> stuff also seems to belong with some other patch.

Yeah, I will improve the commit message to make it clear that this patch
is a preparation patch for the one that will add support for
PTP_SYS_OFFSET_PRECISE/getcrosststamp() and what's the relation with
PCIe PTM.

>
> This patch merely enables PTM if it's supported (might be worth
> expanding Precision Time Measurement for context).

Yes. Will expand the definition in the commit message.


Cheers,
-- 
Vinicius