netdev - Re: [PATCH net 1/2] ptp: idt82p33: optimize idt82p33

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20210624161406.GC15473@hoboy.vegasvil.org>
Date:   Thu, 24 Jun 2021 09:14:06 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Min Li <min.li.xe@...esas.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net 1/2] ptp: idt82p33: optimize idt82p33_adjtime

On Thu, Jun 24, 2021 at 02:38:46PM +0000, Min Li wrote:
> For linuxptp/ptp4l, we can use step_window to adapt to the slow adjtime.
> 
> I have tested this change with ptp4l for by setting step_window to 48 (assuming 16 packets per second)
> for both 8265.2/8275.1 and they performed well.

Yes, but that is a "magic" configuration that happens to work.

Don't you want your driver to work out of the box with every user
space program?

Thanks,
Richard