From d6cb17d5f8015717f6963d24d52b06292a4cb40a Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Fri, 16 Dec 2011 00:46:22 +0000 Subject: [PATCH] e1000e: 82574/82583 Tx hang workaround 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 Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/82571.c | 4 ++++ 1 file changed, 4 insertions(+) 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; } -- 2.7.4