From: David Miller <davem@davemloft.net>
To: jeffrey.t.kirsher@intel.com
Cc: netdev@vger.kernel.org, gospo@redhat.com,
mallikarjuna.chilakala@intel.com
Subject: Re: [net-next-2.6 PATCH 1/3] ixgbe: Fix DMA mapping/unmapping issues when HWRSC is enabled on IOMMU enabled kernels
Date: Fri, 26 Feb 2010 02:10:38 -0800 (PST) [thread overview]
Message-ID: <20100226.021038.163265697.davem@davemloft.net> (raw)
In-Reply-To: <20100226091318.19796.70225.stgit@localhost.localdomain>
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Fri, 26 Feb 2010 01:14:37 -0800
> From: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
>
> Work around 82599 HW issue when HWRSC is enabled on IOMMU enabled
> kernels. 82599 HW is updating the header information after setting the
> descriptor to done, resulting DMA mapping/unmapping issues on IOMMU
> enabled systems. To work around the issue delay unmapping of first packet
> that carries the header information until end of packet is reached.
>
> Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Applied.
next prev parent reply other threads:[~2010-02-26 10:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-26 9:14 [net-next-2.6 PATCH 1/3] ixgbe: Fix DMA mapping/unmapping issues when HWRSC is enabled on IOMMU enabled kernels Jeff Kirsher
2010-02-26 9:14 ` [net-next-2.6 PATCH 2/3] ixgbe: do not stop tx queues in ixgbe_set_tso Jeff Kirsher
2010-02-26 10:10 ` David Miller
2010-02-26 9:15 ` [net-next-2.6 PATCH 3/3] ixgbe: Do not allocate too many netdev txqueues Jeff Kirsher
2010-02-26 10:10 ` David Miller
2010-02-26 14:04 ` Eric Dumazet
2010-02-28 1:02 ` Peter P Waskiewicz Jr
2010-02-28 3:57 ` Eric Dumazet
2010-03-01 7:21 ` Peter P Waskiewicz Jr
2010-03-01 7:53 ` John Fastabend
2010-02-26 10:10 ` David Miller [this message]
2010-03-02 0:29 ` [net-next-2.6 PATCH 1/3] ixgbe: Fix DMA mapping/unmapping issues when HWRSC is enabled on IOMMU enabled kernels Simon Horman
2010-03-02 1:09 ` Chilakala, Mallikarjuna
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