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Date:	Thu, 21 Aug 2014 17:55:32 -0700 (PDT)
From:	David Miller <>
Subject: Re: [PATCH net] bnx2x: Revert UNDI flushing mechanism

From: Yuval Mintz <>
Date: Mon, 18 Aug 2014 22:36:23 +0300

> Commit 91ebb929b6f8 ("bnx2x: Add support for Multi-Function UNDI") [which was
> later supposedly fixed by de682941eef3 ("bnx2x: Fix UNDI driver unload")]
> introduced a bug in which in some [yet-to-be-determined] scenarios the
> alternative flushing mechanism which was to guarantee the Rx buffers are
> empty before resetting them during device probe will fail.
> If this happens, when device will be loaded once more a fatal attention will
> occur; Since this most likely happens in boot from SAN scenarios, the machine
> will fail to load.
> Notice this may occur not only in the 'Multi-Function' scenario but in the
> regular scenario as well, i.e., this introduced a regression in the driver's
> ability to perform boot from SAN.
> The patch reverts the mechanism and applies the old scheme to multi-function
> devices as well as to single-function devices.
> Signed-off-by: Yuval Mintz <>
> Signed-off-by: Ariel Elior <>

Applied and queued up for -stable, thanks.
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