netdev - [NET-TX PATCH] igb: update tx multiqueue

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Message-ID: <20080717030508.10465.72294.stgit@localhost.localdomain>
Date:	Wed, 16 Jul 2008 20:05:33 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org
Subject: [NET-TX PATCH] igb: update tx multiqueue

These changes are to update igb's tx multiqueue to work with Dave's new TX
multiqueue changes.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---

 drivers/net/igb/igb_main.c |   20 +++++++++++++-------
 1 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index afd4ce3..22ccadc 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -414,6 +414,11 @@ msi_only:
 	adapter->num_rx_queues = 1;
 	if (!pci_enable_msi(adapter->pdev))
 		adapter->msi_enabled = 1;
+
+#ifdef CONFIG_NETDEVICES_MULTIQUEUE
+	/* Notify the stack of the (possibly) reduced Tx Queue count. */
+	adapter->netdev->real_num_tx_queues = adapter->num_tx_queues;
+#endif
 	return;
 }
 
@@ -692,7 +697,7 @@ void igb_down(struct igb_adapter *adapter)
 	wr32(E1000_RCTL, rctl & ~E1000_RCTL_EN);
 	/* flush and sleep below */
 
-	netif_stop_queue(netdev);
+	netif_tx_stop_all_queues(netdev);
 
 	/* disable transmits in the hardware */
 	tctl = rd32(E1000_TCTL);
@@ -1096,7 +1101,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 
 	/* tell the stack to leave us alone until igb_open() is called */
 	netif_carrier_off(netdev);
-	netif_stop_queue(netdev);
+	netif_tx_stop_all_queues(netdev);
 
 	strcpy(netdev->name, "eth%d");
 	err = register_netdev(netdev);
@@ -2151,7 +2156,7 @@ static void igb_watchdog_task(struct work_struct *work)
 			}
 
 			netif_carrier_on(netdev);
-			netif_wake_queue(netdev);
+			netif_tx_wake_all_queues(netdev);
 
 			if (!test_bit(__IGB_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
@@ -2163,7 +2168,7 @@ static void igb_watchdog_task(struct work_struct *work)
 			adapter->link_duplex = 0;
 			dev_info(&adapter->pdev->dev, "NIC Link is Down\n");
 			netif_carrier_off(netdev);
-			netif_stop_queue(netdev);
+			netif_tx_stop_all_queues(netdev);
 			if (!test_bit(__IGB_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
 					  round_jiffies(jiffies + 2 * HZ));
@@ -2663,7 +2668,8 @@ static int __igb_maybe_stop_tx(struct net_device *netdev,
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 
-	netif_stop_queue(netdev);
+	netif_tx_stop_all_queues(netdev);
+
 	/* Herbert's original patch had:
 	 *  smp_mb__after_netif_stop_queue();
 	 * but since that doesn't exist yet, just open code it. */
@@ -2675,7 +2681,7 @@ static int __igb_maybe_stop_tx(struct net_device *netdev,
 		return -EBUSY;
 
 	/* A reprieve! */
-	netif_start_queue(netdev);
+	netif_tx_wake_all_queues(netdev);
 	++adapter->restart_queue;
 	return 0;
 }
@@ -3368,7 +3374,7 @@ done_cleaning:
 				tx_ring->buffer_info[i].time_stamp,
 				jiffies,
 				tx_desc->upper.fields.status);
-			netif_stop_queue(netdev);
+			netif_tx_stop_all_queues(netdev);
 		}
 	}
 	tx_ring->total_bytes += total_bytes;

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