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Date: Wed, 25 Jan 2012 23:21:55 -0800 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: Bruce Allan <bruce.w.allan@...el.com>, netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next 12/12] e1000e: 82574/82583 Tx hang workaround From: Bruce Allan <bruce.w.allan@...el.com> On 82574/82583, there is a hardware bug which might cause a Tx hang when the internal buffer is full. Setting this bit enables a hardware fix to work around the issue. Signed-off-by: Bruce Allan <bruce.w.allan@...el.com> Tested-by: Aaron Brown <aaron.f.brown@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- drivers/net/ethernet/intel/e1000e/82571.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c index a3e65fd..0609ac6 100644 --- a/drivers/net/ethernet/intel/e1000e/82571.c +++ b/drivers/net/ethernet/intel/e1000e/82571.c @@ -1227,6 +1227,10 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw) case e1000_82572: reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26); break; + case e1000_82574: + case e1000_82583: + reg |= (1 << 26); + break; default: break; } -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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