netdev - RE: [PATCH NEXT 0/2] qlcnic: Add Qlogic 1/10Gb Ethernet driver for CNA devices

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Message-ID: <7608421F3572AB4292BB2532AE89D5658B0BAE94A3@AVEXMB1.qlogic.org>
Date:	Tue, 5 Jan 2010 18:19:29 -0800
From:	Dhananjay Phadke <dhananjay.phadke@...gic.com>
To:	Dhananjay Phadke <dhananjay.phadke@...gic.com>,
	David Miller <davem@...emloft.net>
CC:	"shemminger@...tta.com" <shemminger@...tta.com>,
	Amit Salecha <amit.salecha@...gic.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH NEXT 0/2] qlcnic: Add Qlogic 1/10Gb Ethernet driver for
 CNA devices

> I won't defend other vendors' implementation. Even if LRO was
> not turned off for bridge/forwarding, we still wouldn't accumulate
> those remote flows because the dest IP address is not configured in
> firmware in our case. This is the reason why we have a inet
> notification listener (to tell firmware about local addresses).

May be I should clarify further. Driver does check if the net device
is owned by a qlogic (or netxen) pci device then only will care
about telling firmware about the IP address.

On NAT box, the IP address belonging to tap/tun device won't land into
firmware preventing any packet accumulation in HW.

-Dhananjay

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