diff --git a/[refs] b/[refs]
index 5231cd891e97..7bb793d9f8ee 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fe4016746d2c0b3b690f5d1921c826d14008b118
+refs/heads/master: 84efb7b968ab91d0099620865b3f563eb0ddf5a6
diff --git a/trunk/drivers/net/e1000e/82571.c b/trunk/drivers/net/e1000e/82571.c
index 7cdf1768afac..0e8aa3441b97 100644
--- a/trunk/drivers/net/e1000e/82571.c
+++ b/trunk/drivers/net/e1000e/82571.c
@@ -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);