From: David Miller <davem@davemloft.net>
To: jeffrey.t.kirsher@intel.com
Cc: amir.hanania@intel.com, netdev@vger.kernel.org, gospo@redhat.com,
bphilips@novell.com
Subject: Re: [net-2.6 5/7] ixgbe: DDP last buffer size work around
Date: Thu, 27 Jan 2011 22:34:32 -0800 (PST) [thread overview]
Message-ID: <20110127.223432.71105998.davem@davemloft.net> (raw)
In-Reply-To: <1296195535-2990-6-git-send-email-jeffrey.t.kirsher@intel.com>
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Thu, 27 Jan 2011 22:18:53 -0800
> From: Amir Hanania <amir.hanania@intel.com>
>
> We found a hardware erratum on 82599 hardware that can lead to buffer
> overwriting if the last buffer in FCoE DDP is exactly PAGE_SIZE.
> If this is the case, we will make sure that there is no HW access to
> this buffer.
>
> Please see the 82599 Specification Update for more information.
>
> Signed-off-by: Amir Hanania <amir.hanania@intel.com>
> Tested-by: Ross Brattain <ross.b.brattain@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
PAGE_SIZE is variable, I can't see how the hardware BUGs on all
possible architecutre values of PAGE_SIZE.
next prev parent reply other threads:[~2011-01-28 6:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-28 6:18 [net-2.6 0/7][pull request] Intel Wired LAN Driver Updates Jeff Kirsher
2011-01-28 6:18 ` [net-2.6 1/7] e1000: add support for Marvell Alaska M88E1118R PHY Jeff Kirsher
2011-01-28 6:18 ` [net-2.6 2/7] ixgbe: fix variable set but not used warnings by gcc 4.6 Jeff Kirsher
2011-01-28 6:18 ` [net-2.6 3/7] ixgbe: fix for 82599 erratum on Header Splitting Jeff Kirsher
2011-01-28 6:33 ` David Miller
2011-01-28 6:58 ` Jeff Kirsher
2011-01-28 6:18 ` Jeff Kirsher
2011-01-28 6:18 ` [net-2.6 4/7] ixgbe: limit VF access to network traffic Jeff Kirsher
2011-01-28 6:18 ` [net-2.6 5/7] ixgbe: DDP last buffer size work around Jeff Kirsher
2011-01-28 6:34 ` David Miller [this message]
2011-01-28 6:18 ` [net-2.6 6/7] ixgbe: cleanup variable initialization Jeff Kirsher
2011-01-28 6:18 ` [net-2.6 7/7] ixgbe: update version string Jeff Kirsher
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