---

yaml
---
r: 215219
b: refs/heads/master
c: 7a9905e
h: refs/heads/master
i:
  215217: d5f85ef
  215215: d1cf7a7
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3666e0b04f092f9d9da8a6d6a3820de6c870407c
+refs/heads/master: 7a9905e64272c8021a8cfaf6015dd0fb8eeeb378

trunk/drivers/net/netxen/netxen_nic.h

@@ -175,7 +175,10 @@
 #define	MAX_NUM_CARDS		4
 
 #define MAX_BUFFERS_PER_CMD	32
-#define TX_STOP_THRESH		((MAX_SKB_FRAGS >> 2) + 4)
+#define MAX_TSO_HEADER_DESC	2
+#define MGMT_CMD_DESC_RESV	4
+#define TX_STOP_THRESH		((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \
+							+ MGMT_CMD_DESC_RESV)
 #define NX_MAX_TX_TIMEOUTS	2
 
 /*

trunk/drivers/net/netxen/netxen_nic_hw.c

@@ -598,8 +598,14 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
 
 	if (nr_desc >= netxen_tx_avail(tx_ring)) {
 		netif_tx_stop_queue(tx_ring->txq);
-		__netif_tx_unlock_bh(tx_ring->txq);
-		return -EBUSY;
+		smp_mb();
+		if (netxen_tx_avail(tx_ring) > nr_desc) {
+			if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
+				netif_tx_wake_queue(tx_ring->txq);
+		} else {
+			__netif_tx_unlock_bh(tx_ring->txq);
+			return -EBUSY;
+		}
 	}
 
 	do {

trunk/drivers/net/netxen/netxen_nic_init.c

@@ -1763,14 +1763,10 @@ int netxen_process_cmd_ring(struct netxen_adapter *adapter)
 
 		smp_mb();
 
-		if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
-			__netif_tx_lock(tx_ring->txq, smp_processor_id());
-			if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) {
+		if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
+			if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
 				netif_wake_queue(netdev);
-				adapter->tx_timeo_cnt = 0;
-			}
-			__netif_tx_unlock(tx_ring->txq);
-		}
+		adapter->tx_timeo_cnt = 0;
 	}
 	/*
 	 * If everything is freed up to consumer then check if the ring is full

trunk/drivers/net/netxen/netxen_nic_main.c

@@ -125,11 +125,6 @@ netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
 		struct nx_host_tx_ring *tx_ring)
 {
 	NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
-
-	if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
-		netif_stop_queue(adapter->netdev);
-		smp_mb();
-	}
 }
 
 static uint32_t crb_cmd_consumer[4] = {
@@ -1209,7 +1204,7 @@ netxen_setup_netdev(struct netxen_adapter *adapter,
 		adapter->max_mc_count = 16;
 
 	netdev->netdev_ops	   = &netxen_netdev_ops;
-	netdev->watchdog_timeo     = 2*HZ;
+	netdev->watchdog_timeo     = 5*HZ;
 
 	netxen_nic_change_mtu(netdev, netdev->mtu);
 
@@ -1825,9 +1820,13 @@ netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 	/* 4 fragments per cmd des */
 	no_of_desc = (frag_count + 3) >> 2;
 
-	if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
+	if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
 		netif_stop_queue(netdev);
-		return NETDEV_TX_BUSY;
+		smp_mb();
+		if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
+			netif_start_queue(netdev);
+		else
+			return NETDEV_TX_BUSY;
 	}
 
 	producer = tx_ring->producer;