Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 84efb7b9 authored by Bruce Allan's avatar Bruce Allan Committed by David S. Miller
Browse files

e1000e: provide comment for 82571 workaround 



Signed-off-by: default avatarBruce Allan <bruce.w.allan@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fe401674

drivers/net/e1000e/82571.c

+7 −0
Original line number Diff line number Diff line
@@ -1114,6 +1114,13 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw) 
		reg |= (1 << 22);

		ew32(GCR, reg);



		/*

		 * Workaround for hardware errata.

		 * apply workaround for hardware errata documented in errata

		 * docs Fixes issue where some error prone or unreliable PCIe

		 * completions are occurring, particularly with ASPM enabled.

		 * Without fix, issue can cause tx timeouts.

		 */

		reg = er32(GCR2);

		reg |= 1;

		ew32(GCR2, reg);