[net-next 12/12] e1000e: 82574/82583 Tx hang workaround
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STALE5382d
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From: Jeff Kirsher <hidden>
Date: 2012-01-26 07:22:03
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 84 in this series; 1 review trailer.
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From: Bruce Allan <redacted> 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 <redacted> Tested-by: Aaron Brown <redacted> Signed-off-by: Jeff Kirsher <redacted> --- 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; }
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1.7.7.6