netdev - Re: [PATCH net-next V3 05/16] net: fec: reduce interrupts

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]

Date:	Wed, 06 Apr 2016 23:57:31 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	troy.kisky@...ndarydevices.com
Cc:	netdev@...r.kernel.org, fugang.duan@....com, lznuaa@...il.com,
	fabio.estevam@....com, l.stach@...gutronix.de, andrew@...n.ch,
	tremyfr@...il.com, gerg@...inux.org,
	linux-arm-kernel@...ts.infradead.org, johannes@...solutions.net,
	stillcompiling@...il.com, sergei.shtylyov@...entembedded.com,
	arnd@...db.de
Subject: Re: [PATCH net-next V3 05/16] net: fec: reduce interrupts

From: Troy Kisky <troy.kisky@...ndarydevices.com>
Date: Wed, 6 Apr 2016 17:42:47 -0700

> Sure, that's an easy change. But if a TX int is what caused the
> interrupt and masks them, and then a RX packet happens before napi
> runs, do you want the TX serviced 1st, or RX ?

If you properly split your driver up into seperate interrupt/poll
instances, one for TX one for RX, you wouldn't need to ask me
that question now would you?

:-)