> -----Original Message-----
> From: Fujinaka, Todd <[email protected]>
> Sent: Thursday, May 05, 2022 7:23 AM
> To: [email protected]; [email protected]
> Subject: Re: [E1000-devel] [igbvf] Accessing PTP clock from a Virtual Function
>
> Not everything in the hardware is enabled in the software. We do not appear to
> be using the register you mention.
>
> I have been told by those more familiar with PTP that the Time Sync registers
> are
> in chapter 8.16 and are only accessible through the PF.
>
> Todd Fujinaka
> Software Application Engineer
> Ethernet Products Group
> Intel Corporation
> [email protected]
>
> -----Original Message-----
> From: [email protected] <[email protected]>
> Sent: Thursday, May 5, 2022 5:41 AM
> To: [email protected]
> Subject: [E1000-devel] [igbvf] Accessing PTP clock from a Virtual Function
>
> Hello,
>
> I'd like to access the PTP timer of an i350T2V2 from a VF. The Datasheet
> (Rev. 2.6)
> states in section 7.8.2.12.2 that "VMs have access to the real time clock
> register".
> But the only timer-related register which is mapped to a VF I could find is
> the
> free-running timer (VTFRTIMER at 0x1048). So I'm kind of confused.
>
> P.S. yes I know that there is ptp_kvm module, but it uses hypercalls which
> I'd like
> to avoid.
>
> Thanks a lot,
>
> Bjarne
>
>
Todd is correct, the Time Sync registers are unfortunately not accessible to
the VF.
Thanks,
Jake
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