netdev - Re: [PATCH net-next 1/1] bnx2x: Prevent link flaps when booting from SAN.

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Date:	Fri, 07 Dec 2012 12:54:18 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	yuvalmin@...adcom.com
Cc:	netdev@...r.kernel.org, ariele@...adcom.com, barak@...adcom.com,
	eilong@...adcom.com
Subject: Re: [PATCH net-next 1/1] bnx2x: Prevent link flaps when booting
 from SAN.

From: "Yuval Mintz" <yuvalmin@...adcom.com>
Date: Thu, 6 Dec 2012 11:04:03 +0200

> From: Barak Witkowski <barak@...adcom.com>
> 
> It is possible that the driver is configured to operate with a certain
> link configuration which differs from the link's configuration during
> boot from SAN - this would cause the driver to flap the link.
> 
> Said flap may be missed by specific switches, causing dcbx convergence 
> to be too long and boot sequence to fail. Convergence is longer because
> switch ignores new dcbx packets due to counters mismatch, as only host 
> side reset the counters due to the link flap.
> 
> This patch causes the driver to ignore user's initial configuration during
> boot from SAN, and continues with the existing link configuration.
> 
> Signed-off-by: Barak Witkowski <barak@...adcom.com>
> Signed-off-by: Yuval Mintz <yuvalmin@...adcom.com>
> Signed-off-by: Eilon Greenstein <eilong@...adcom.com>

Applied, thanks.
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