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Commit d6cb17d5 authored by Bruce Allan's avatar Bruce Allan Committed by Jeff Kirsher
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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: default avatarBruce Allan <bruce.w.allan@intel.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent c550b121

drivers/net/ethernet/intel/e1000e/82571.c

+4 −0
Original line number Diff line number Diff line
@@ -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;

	}