netdev - Re: OMAP4430 SDP with KS8851: very slow networking

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] [day] [month] [year] [list]

Message-ID: <20181207205533.GU6707@atomide.com>
Date:   Fri, 7 Dec 2018 12:55:33 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Russell King - ARM Linux <linux@...linux.org.uk>
Cc:     netdev@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Grygorii Strashko <grygorii.strashko@...com>
Subject: Re: OMAP4430 SDP with KS8851: very slow networking

* Russell King - ARM Linux <linux@...linux.org.uk> [181207 19:27]:
> You mentioned that edge mode didn't work as well as level mode on
> duovero smsc controller, I think this may help to solve the same
> issue but for edge IRQs - we need a mask_ack_irq function to avoid
> acking while the edge interrupt is masked.  Let me know if that
> lowers the smsc ping latency while in edge mode.

Looks like smsc edge interrupt is still producing varying
ping latencies with this. Seems like the mas_ack_irq is
a nice improvment though.

Regards,

Tony