netdev - Re: [PATCH] cnic: fix double initalization of bnx2 based cards

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Date:	Tue, 8 Mar 2011 13:41:43 -0800
From:	"Michael Chan" <mchan@...adcom.com>
To:	"Neil Horman" <nhorman@...driver.com>
cc:	"Ben Hutchings" <bhutchings@...arflare.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"Dmitry Kravkov" <dmitry@...adcom.com>,
	"Eddie Wai" <eddie.wai@...adcom.com>,
	"Eilon Greenstein" <eilong@...adcom.com>
Subject: Re: [PATCH] cnic: fix double initalization of bnx2 based cards


On Tue, 2011-03-08 at 13:40 -0800, Neil Horman wrote:
> > No, that should not happen.  When we compare NULL-terminated "bnx2" with
> > NULL-terminated "bnx2x", it won't match because the '\0' won't match the
> > 'x', right?
> > 
> > I think the patch is good.  We can avoid the unnecessary strcmp() when
> > we have a match with "bnx2" already.  But we should not get both matches
> > even without the patch.
> > 
> Crap, sorry, I rescind this (although you're right, it probably wouldn't hurt to
> roll this change in, just to save a potential second strcmp).  Anywho, I'm
> getting this error on the ifup of my bnx2 interface:
> bnx2i: iSCSI not supported, dev=eth1
> 
> That message appears to only get set (from my read) on cards driven by the bnx2x
> driver, and when I saw the 2 ifs rather than the if/else, I jumped to a
> conclusion that we must be using the bnx2x init path on a bnx2 driver.
> Apologies.
> 
> /me wanders off to see where completion_status gets set to
> ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED for bnx2.

On bnx2, this error code is set by the firmware if iSCSI is not
configured in NVRAM.

Thanks.


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