3 files changed, 19 insertions, 7 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index cf43ee743b3..0890162953e 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -981,11 +981,15 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 		ew32(PBA_ECC, reg);
 	}
 
-	/* PCI-Ex Control Register */
+	/* PCI-Ex Control Registers */
 	if (hw->mac.type == e1000_82574) {
 		reg = er32(GCR);
 		reg |= (1 << 22);
 		ew32(GCR, reg);
+
+		reg = er32(GCR2);
+		reg |= 1;
+		ew32(GCR2, reg);
 	}
 
 	return;
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index f25e961c6b3..2d4ce0492df 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -206,6 +206,7 @@ enum e1e_registers {
 	E1000_MANC2H    = 0x05860, /* Management Control To Host - RW */
 	E1000_SW_FW_SYNC = 0x05B5C, /* Software-Firmware Synchronization - RW */
 	E1000_GCR	= 0x05B00, /* PCI-Ex Control */
+	E1000_GCR2      = 0x05B64, /* PCI-Ex Control #2 */
 	E1000_FACTPS    = 0x05B30, /* Function Active and Power State to MNG */
 	E1000_SWSM      = 0x05B50, /* SW Semaphore */
 	E1000_FWSM      = 0x05B54, /* FW Semaphore */
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index f2a5963b5a9..e415e81ecd3 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -390,7 +390,8 @@ static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
 }
 
 static DEFINE_MUTEX(nvm_mutex);
-static pid_t nvm_owner = -1;
+static pid_t nvm_owner_pid = -1;
+static char nvm_owner_name[TASK_COMM_LEN] = "";
 
 /**
  *  e1000_acquire_swflag_ich8lan - Acquire software control flag
@@ -408,11 +409,15 @@ static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
 	might_sleep();
 
 	if (!mutex_trylock(&nvm_mutex)) {
-		WARN(1, KERN_ERR "e1000e mutex contention. Owned by pid %d\n",
-		     nvm_owner);
+		WARN(1, KERN_ERR "e1000e mutex contention. Owned by process "
+		     "%s (pid %d), required by process %s (pid %d)\n",
+		     nvm_owner_name, nvm_owner_pid,
+		     current->comm, current->pid);
+
 		mutex_lock(&nvm_mutex);
 	}
-	nvm_owner = current->pid;
+	nvm_owner_pid = current->pid;
+	strncpy(nvm_owner_name, current->comm, TASK_COMM_LEN);
 
 	while (timeout) {
 		extcnf_ctrl = er32(EXTCNF_CTRL);
@@ -430,7 +435,8 @@ static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
 		hw_dbg(hw, "FW or HW has locked the resource for too long.\n");
 		extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
 		ew32(EXTCNF_CTRL, extcnf_ctrl);
-		nvm_owner = -1;
+		nvm_owner_pid = -1;
+		strcpy(nvm_owner_name, "");
 		mutex_unlock(&nvm_mutex);
 		return -E1000_ERR_CONFIG;
 	}
@@ -454,7 +460,8 @@ static void e1000_release_swflag_ich8lan(struct e1000_hw *hw)
 	extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
 	ew32(EXTCNF_CTRL, extcnf_ctrl);
 
-	nvm_owner = -1;
+	nvm_owner_pid = -1;
+	strcpy(nvm_owner_name, "");
 	mutex_unlock(&nvm_mutex);
 }