5 files changed, 17 insertions, 11 deletions

diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h
index db05ec35574..e301e26d689 100644
--- a/drivers/net/e1000e/defines.h
+++ b/drivers/net/e1000e/defines.h
@@ -320,6 +320,8 @@
 #define E1000_RXCSUM_IPPCSE    0x00001000   /* IP payload checksum enable */
 
 /* Header split receive */
+#define E1000_RFCTL_NFSW_DIS            0x00000040
+#define E1000_RFCTL_NFSR_DIS            0x00000080
 #define E1000_RFCTL_ACK_DIS             0x00001000
 #define E1000_RFCTL_EXTEN               0x00008000
 #define E1000_RFCTL_IPV6_EX_DIS         0x00010000
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index c2ec095d216..118bdf48359 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -279,7 +279,6 @@ struct e1000_adapter {
 
 	struct napi_struct napi;
 
-	unsigned long tx_queue_len;
 	unsigned int restart_queue;
 	u32 txd_cmd;
 
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index b33e3cbe9ab..983493f2330 100644
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -31,6 +31,7 @@
 #include <linux/netdevice.h>
 #include <linux/ethtool.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 #include <linux/delay.h>
 
 #include "e1000.h"
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 54d03a0ce3c..8b5e157e9c8 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -2740,6 +2740,16 @@ static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw)
 		reg &= ~(1 << 31);
 		ew32(STATUS, reg);
 	}
+
+	/*
+	 * work-around descriptor data corruption issue during nfs v2 udp
+	 * traffic, just disable the nfs filtering capability
+	 */
+	reg = er32(RFCTL);
+	reg |= (E1000_RFCTL_NFSW_DIS | E1000_RFCTL_NFSR_DIS);
+	ew32(RFCTL, reg);
+
+	return;
 }
 
 /**
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 88d54d3efce..73d43c53015 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -36,6 +36,7 @@
 #include <linux/netdevice.h>
 #include <linux/tcp.h>
 #include <linux/ipv6.h>
+#include <linux/slab.h>
 #include <net/checksum.h>
 #include <net/ip6_checksum.h>
 #include <linux/mii.h>
@@ -660,6 +661,8 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
 				i = 0;
 		}
 
+		if (i == tx_ring->next_to_use)
+			break;
 		eop = tx_ring->buffer_info[i].next_to_watch;
 		eop_desc = E1000_TX_DESC(*tx_ring, eop);
 	}
@@ -2289,8 +2292,6 @@ static void e1000_configure_tx(struct e1000_adapter *adapter)
 	ew32(TCTL, tctl);
 
 	e1000e_config_collision_dist(hw);
-
-	adapter->tx_queue_len = adapter->netdev->tx_queue_len;
 }
 
 /**
@@ -2877,7 +2878,6 @@ void e1000e_down(struct e1000_adapter *adapter)
 	del_timer_sync(&adapter->watchdog_timer);
 	del_timer_sync(&adapter->phy_info_timer);
 
-	netdev->tx_queue_len = adapter->tx_queue_len;
 	netif_carrier_off(netdev);
 	adapter->link_speed = 0;
 	adapter->link_duplex = 0;
@@ -3588,21 +3588,15 @@ static void e1000_watchdog_task(struct work_struct *work)
 					       "link gets many collisions.\n");
 			}
 
-			/*
-			 * tweak tx_queue_len according to speed/duplex
-			 * and adjust the timeout factor
-			 */
-			netdev->tx_queue_len = adapter->tx_queue_len;
+			/* adjust timeout factor according to speed/duplex */
 			adapter->tx_timeout_factor = 1;
 			switch (adapter->link_speed) {
 			case SPEED_10:
 				txb2b = 0;
-				netdev->tx_queue_len = 10;
 				adapter->tx_timeout_factor = 16;
 				break;
 			case SPEED_100:
 				txb2b = 0;
-				netdev->tx_queue_len = 100;
 				adapter->tx_timeout_factor = 10;
 				break;
 			}