netdev - Re: [PATCH net-next 0/7] Polling be gone on LAN95xx

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: <20220427123715.GC17577@pengutronix.de>
Date:   Wed, 27 Apr 2022 14:37:15 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Lukas Wunner <lukas@...ner.de>
Cc:     Steve Glendinning <steve.glendinning@...well.net>,
        UNGLinuxDriver@...rochip.com, Oliver Neukum <oneukum@...e.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-usb@...r.kernel.org, Andre Edich <andre.edich@...rochip.com>,
        Martyn Welch <martyn.welch@...labora.com>,
        Gabriel Hojda <ghojda@...urs.ro>,
        Christoph Fritz <chf.fritz@...glemail.com>,
        Lino Sanfilippo <LinoSanfilippo@....de>,
        Philipp Rosenberger <p.rosenberger@...bus.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Russell King <linux@...linux.org.uk>
Subject: Re: [PATCH net-next 0/7] Polling be gone on LAN95xx

On Wed, Apr 27, 2022 at 07:48:00AM +0200, Lukas Wunner wrote:
> Do away with link status polling on LAN95XX USB Ethernet
> and rely on interrupts instead, thereby reducing bus traffic,
> CPU overhead and improving interface bringup latency.
> 
> The meat of the series is in patch [5/7].  The preceding and
> following patches are various cleanups to prepare for and
> adjust to interrupt-driven link state detection.
> 
> Please review and test.  Thanks!

Tested-by: Oleksij Rempel <o.rempel@...gutronix.de>

Tested on:
- LAN9514 (RPi2)
- LAN9512 (EVB)
- LAN9500 (EVB)

On USB unplug i get some not usable kernel message, but it is not the
show stopper for me:
smsc95xx 1-1.4.1:1.0 eth1: Error updating MAC full duplex mode
smsc95xx 1-1.4.1:1.0 eth1: hardware isn't capable of remote wakeup

Thank you!

Regards,
Oleksij
-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |