netdev - Re: [net-next-2.6 PATCH 2/3] ixgbe: Set MSI-X vectors to NOBALANCING and set affinity

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: <20091118.101030.22004862.davem@davemloft.net>
Date:	Wed, 18 Nov 2009 10:10:30 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	peter.p.waskiewicz.jr@...el.com
Cc:	jeffrey.t.kirsher@...el.com, gospo@...hat.com,
	netdev@...r.kernel.org
Subject: Re: [net-next-2.6 PATCH 2/3] ixgbe: Set MSI-X vectors to
 NOBALANCING and set affinity

From: "Waskiewicz Jr, Peter P" <peter.p.waskiewicz.jr@...el.com>
Date: Thu, 12 Nov 2009 11:12:22 -0800

> Jesse Brandeburg and I talked with Arjan yesterday regarding these patches.

Thanks for the update.

> We also discussed the need for irqbalance to distinguish between Rx
> and Tx queue vectors.  Right now, irqbalance can identify an
> interrupt belong to an Ethernet device, but it stops there.  It
> needs to also distinguish the directional vectors, and make sure to
> balance the right queue vector with its paired queue (i.e. make sure
> Tx queue 0's vector lines up with Rx queue 0's vector).

Why don't you just simply use the same MSI-X vector for both TX
queue 0 and RX queue 0, can't your hardware do that?

That's what I plan on doing in the NIU driver soon.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html