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

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Date:	Tue, 5 Jan 2010 15:55:10 -0800
From:	Dhananjay Phadke <dhananjay.phadke@...gic.com>
To:	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

> We've been gradually removing LRO support from drivers and replacing
> it with GRO support.

> And meanwhile also encouraging device manufacturers to make their
> hardware accumulation support more closely align with being able to
> offload GRO natively.

The LRO you are talking about was still kernel based
LRO. Even GRO doesn't save PCIe transactions as much
HW LRO does. That is the key. The difference between
HW LRO and GRO is significant to keep former alive
for a while.

-Dhananjay
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