netdev - Re: [PATCH 2/2 net-next] cnic: Improve error recovery on bnx2x devices

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Message-Id: <20120105.140835.846952184860620132.davem@davemloft.net>
Date:	Thu, 05 Jan 2012 14:08:35 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	mchan@...adcom.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 2/2 net-next] cnic: Improve error recovery on bnx2x
 devices

From: "Michael Chan" <mchan@...adcom.com>
Date: Wed, 4 Jan 2012 14:12:28 -0800

> When a bnx2x device encounters parity errors, it will not respond to all
> SPQ messages.  As a result, the shutdown sequence before reset can take
> a long time as the ulp drivers (bnx2i/bnx2fc) have to wait for timeout
> of all such messages.
> 
> To improve this scenario, when bnx2x returns error on the SPQ, we'll send
> an immediate response to the ulp drivers to avoid such lengthy timeouts.
> 
> Adjust the return code of relevant functions to return error only if
> the message cannot be sent on the SPQ so that we'll generate an error
> completion to the ulp drivers.
> 
> Signed-off-by: Michael Chan <mchan@...adcom.com>

Applied.
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