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
......@@ -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);
......
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