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Message-Id: <20100329.165743.137823731.davem@davemloft.net>
Date: Mon, 29 Mar 2010 16:57:43 -0700 (PDT)
From: David Miller <davem@...emloft.net>
To: Sreenivasa.Honnur@...erion.com
Cc: netdev@...r.kernel.org, support@...erion.com
Subject: Re: [net-next-2.6 PATCH 1/8] vxge: Fix a receive stall due to
driver being out of synch with chip.
From: Sreenivasa Honnur <Sreenivasa.Honnur@...erion.com>
Date: Mon, 29 Mar 2010 04:07:34 -0400 (EDT)
> - Fix a receive stall due to driver being out of synch with chip. In a corner
> case scenario the adapter's ring controller may return a RxD with transfer code
> of 0xC, while the host ownership bit is still set to the adapter. The driver
> needs to assume that this case where (host_ownership == 1 or adapter) and
> (transfer_code == 0xC) is valid, that is, this RxD has been returned by the
> receive ring controller but no frame data is associated with the rxd.
>
> - Restore the transfer code field of each newly replenished RxD to 0x0.
>
> - Code cleanup. Removed usage of magic numbers.
>
> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@...erion.com>
> Signed-off-by: Ramkrishna Vepa <ram.vepa@...erion.com>
Applied.
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