3 files changed, 86 insertions, 81 deletions

diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 4ff6f0567f3..acf2569b98f 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -294,6 +294,8 @@ struct igb_adapter {
 	unsigned int lro_flushed;
 	unsigned int lro_no_desc;
 #endif
+	unsigned int tx_ring_count;
+	unsigned int rx_ring_count;
 };
 
 #define IGB_FLAG_HAS_MSI           (1 << 0)
@@ -325,6 +327,8 @@ extern void igb_reset(struct igb_adapter *);
 extern int igb_set_spd_dplx(struct igb_adapter *, u16);
 extern int igb_setup_tx_resources(struct igb_adapter *, struct igb_ring *);
 extern int igb_setup_rx_resources(struct igb_adapter *, struct igb_ring *);
+extern void igb_free_tx_resources(struct igb_ring *);
+extern void igb_free_rx_resources(struct igb_ring *);
 extern void igb_update_stats(struct igb_adapter *);
 extern void igb_set_ethtool_ops(struct net_device *);
 
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 89964fa739a..a661159a097 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -101,8 +101,8 @@ static const struct igb_stats igb_gstrings_stats[] = {
 };
 
 #define IGB_QUEUE_STATS_LEN \
-	((((struct igb_adapter *)netdev->priv)->num_rx_queues + \
-	 ((struct igb_adapter *)netdev->priv)->num_tx_queues) * \
+	((((struct igb_adapter *)netdev_priv(netdev))->num_rx_queues + \
+	 ((struct igb_adapter *)netdev_priv(netdev))->num_tx_queues) * \
 	(sizeof(struct igb_queue_stats) / sizeof(u64)))
 #define IGB_GLOBAL_STATS_LEN	\
 	sizeof(igb_gstrings_stats) / sizeof(struct igb_stats)
@@ -714,15 +714,13 @@ static void igb_get_ringparam(struct net_device *netdev,
 			      struct ethtool_ringparam *ring)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
-	struct igb_ring *tx_ring = adapter->tx_ring;
-	struct igb_ring *rx_ring = adapter->rx_ring;
 
 	ring->rx_max_pending = IGB_MAX_RXD;
 	ring->tx_max_pending = IGB_MAX_TXD;
 	ring->rx_mini_max_pending = 0;
 	ring->rx_jumbo_max_pending = 0;
-	ring->rx_pending = rx_ring->count;
-	ring->tx_pending = tx_ring->count;
+	ring->rx_pending = adapter->rx_ring_count;
+	ring->tx_pending = adapter->tx_ring_count;
 	ring->rx_mini_pending = 0;
 	ring->rx_jumbo_pending = 0;
 }
@@ -731,12 +729,9 @@ static int igb_set_ringparam(struct net_device *netdev,
 			     struct ethtool_ringparam *ring)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
-	struct igb_buffer *old_buf;
-	struct igb_buffer *old_rx_buf;
-	void *old_desc;
+	struct igb_ring *temp_ring;
 	int i, err;
-	u32 new_rx_count, new_tx_count, old_size;
-	dma_addr_t old_dma;
+	u32 new_rx_count, new_tx_count;
 
 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 		return -EINVAL;
@@ -749,12 +744,19 @@ static int igb_set_ringparam(struct net_device *netdev,
 	new_tx_count = min(new_tx_count, (u32)IGB_MAX_TXD);
 	new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 
-	if ((new_tx_count == adapter->tx_ring->count) &&
-	    (new_rx_count == adapter->rx_ring->count)) {
+	if ((new_tx_count == adapter->tx_ring_count) &&
+	    (new_rx_count == adapter->rx_ring_count)) {
 		/* nothing to do */
 		return 0;
 	}
 
+	if (adapter->num_tx_queues > adapter->num_rx_queues)
+		temp_ring = vmalloc(adapter->num_tx_queues * sizeof(struct igb_ring));
+	else
+		temp_ring = vmalloc(adapter->num_rx_queues * sizeof(struct igb_ring));
+	if (!temp_ring)
+		return -ENOMEM;
+
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 		msleep(1);
 
@@ -766,62 +768,55 @@ static int igb_set_ringparam(struct net_device *netdev,
 	 * because the ISRs in MSI-X mode get passed pointers
 	 * to the tx and rx ring structs.
 	 */
-	if (new_tx_count != adapter->tx_ring->count) {
+	if (new_tx_count != adapter->tx_ring_count) {
+		memcpy(temp_ring, adapter->tx_ring,
+		       adapter->num_tx_queues * sizeof(struct igb_ring));
+
 		for (i = 0; i < adapter->num_tx_queues; i++) {
-			/* Save existing descriptor ring */
-			old_buf = adapter->tx_ring[i].buffer_info;
-			old_desc = adapter->tx_ring[i].desc;
-			old_size = adapter->tx_ring[i].size;
-			old_dma = adapter->tx_ring[i].dma;
-			/* Try to allocate a new one */
-			adapter->tx_ring[i].buffer_info = NULL;
-			adapter->tx_ring[i].desc = NULL;
-			adapter->tx_ring[i].count = new_tx_count;
-			err = igb_setup_tx_resources(adapter,
-						&adapter->tx_ring[i]);
+			temp_ring[i].count = new_tx_count;
+			err = igb_setup_tx_resources(adapter, &temp_ring[i]);
 			if (err) {
-				/* Restore the old one so at least
-				   the adapter still works, even if
-				   we failed the request */
-				adapter->tx_ring[i].buffer_info = old_buf;
-				adapter->tx_ring[i].desc = old_desc;
-				adapter->tx_ring[i].size = old_size;
-				adapter->tx_ring[i].dma = old_dma;
+				while (i) {
+					i--;
+					igb_free_tx_resources(&temp_ring[i]);
+				}
 				goto err_setup;
 			}
-			/* Free the old buffer manually */
-			vfree(old_buf);
-			pci_free_consistent(adapter->pdev, old_size,
-					    old_desc, old_dma);
 		}
+
+		for (i = 0; i < adapter->num_tx_queues; i++)
+			igb_free_tx_resources(&adapter->tx_ring[i]);
+
+		memcpy(adapter->tx_ring, temp_ring,
+		       adapter->num_tx_queues * sizeof(struct igb_ring));
+
+		adapter->tx_ring_count = new_tx_count;
 	}
 
 	if (new_rx_count != adapter->rx_ring->count) {
-		for (i = 0; i < adapter->num_rx_queues; i++) {
+		memcpy(temp_ring, adapter->rx_ring,
+		       adapter->num_rx_queues * sizeof(struct igb_ring));
 
-			old_rx_buf = adapter->rx_ring[i].buffer_info;
-			old_desc = adapter->rx_ring[i].desc;
-			old_size = adapter->rx_ring[i].size;
-			old_dma = adapter->rx_ring[i].dma;
-
-			adapter->rx_ring[i].buffer_info = NULL;
-			adapter->rx_ring[i].desc = NULL;
-			adapter->rx_ring[i].dma = 0;
-			adapter->rx_ring[i].count = new_rx_count;
-			err = igb_setup_rx_resources(adapter,
-						     &adapter->rx_ring[i]);
+		for (i = 0; i < adapter->num_rx_queues; i++) {
+			temp_ring[i].count = new_rx_count;
+			err = igb_setup_rx_resources(adapter, &temp_ring[i]);
 			if (err) {
-				adapter->rx_ring[i].buffer_info = old_rx_buf;
-				adapter->rx_ring[i].desc = old_desc;
-				adapter->rx_ring[i].size = old_size;
-				adapter->rx_ring[i].dma = old_dma;
+				while (i) {
+					i--;
+					igb_free_rx_resources(&temp_ring[i]);
+				}
 				goto err_setup;
 			}
 
-			vfree(old_rx_buf);
-			pci_free_consistent(adapter->pdev, old_size, old_desc,
-					    old_dma);
 		}
+
+		for (i = 0; i < adapter->num_rx_queues; i++)
+			igb_free_rx_resources(&adapter->rx_ring[i]);
+
+		memcpy(adapter->rx_ring, temp_ring,
+		       adapter->num_rx_queues * sizeof(struct igb_ring));
+
+		adapter->rx_ring_count = new_rx_count;
 	}
 
 	err = 0;
@@ -830,6 +825,7 @@ err_setup:
 		igb_up(adapter);
 
 	clear_bit(__IGB_RESETTING, &adapter->state);
+	vfree(temp_ring);
 	return err;
 }
 
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 1cbae85b142..ceb0a045879 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -76,8 +76,6 @@ static int igb_setup_all_tx_resources(struct igb_adapter *);
 static int igb_setup_all_rx_resources(struct igb_adapter *);
 static void igb_free_all_tx_resources(struct igb_adapter *);
 static void igb_free_all_rx_resources(struct igb_adapter *);
-static void igb_free_tx_resources(struct igb_ring *);
-static void igb_free_rx_resources(struct igb_ring *);
 void igb_update_stats(struct igb_adapter *);
 static int igb_probe(struct pci_dev *, const struct pci_device_id *);
 static void __devexit igb_remove(struct pci_dev *pdev);
@@ -259,11 +257,13 @@ static int igb_alloc_queues(struct igb_adapter *adapter)
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
 		struct igb_ring *ring = &(adapter->tx_ring[i]);
+		ring->count = adapter->tx_ring_count;
 		ring->adapter = adapter;
 		ring->queue_index = i;
 	}
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		struct igb_ring *ring = &(adapter->rx_ring[i]);
+		ring->count = adapter->rx_ring_count;
 		ring->adapter = adapter;
 		ring->queue_index = i;
 		ring->itr_register = E1000_ITR;
@@ -950,6 +950,24 @@ static int igb_is_need_ioport(struct pci_dev *pdev)
 	}
 }
 
+static const struct net_device_ops igb_netdev_ops = {
+	.ndo_open 		= igb_open,
+	.ndo_stop		= igb_close,
+	.ndo_get_stats		= igb_get_stats,
+	.ndo_set_multicast_list	= igb_set_multi,
+	.ndo_set_mac_address	= igb_set_mac,
+	.ndo_change_mtu		= igb_change_mtu,
+	.ndo_do_ioctl		= igb_ioctl,
+	.ndo_tx_timeout		= igb_tx_timeout,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_vlan_rx_register	= igb_vlan_rx_register,
+	.ndo_vlan_rx_add_vid	= igb_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid	= igb_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= igb_netpoll,
+#endif
+};
+
 /**
  * igb_probe - Device Initialization Routine
  * @pdev: PCI device information struct
@@ -1059,22 +1077,9 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	if (!adapter->hw.hw_addr)
 		goto err_ioremap;
 
-	netdev->open = &igb_open;
-	netdev->stop = &igb_close;
-	netdev->get_stats = &igb_get_stats;
-	netdev->set_multicast_list = &igb_set_multi;
-	netdev->set_mac_address = &igb_set_mac;
-	netdev->change_mtu = &igb_change_mtu;
-	netdev->do_ioctl = &igb_ioctl;
+	netdev->netdev_ops = &igb_netdev_ops;
 	igb_set_ethtool_ops(netdev);
-	netdev->tx_timeout = &igb_tx_timeout;
 	netdev->watchdog_timeo = 5 * HZ;
-	netdev->vlan_rx_register = igb_vlan_rx_register;
-	netdev->vlan_rx_add_vid = igb_vlan_rx_add_vid;
-	netdev->vlan_rx_kill_vid = igb_vlan_rx_kill_vid;
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	netdev->poll_controller = igb_netpoll;
-#endif
 	netdev->hard_start_xmit = &igb_xmit_frame_adv;
 
 	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
@@ -1275,16 +1280,14 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 
 	dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n");
 	/* print bus type/speed/width info */
-	dev_info(&pdev->dev,
-		 "%s: (PCIe:%s:%s) %02x:%02x:%02x:%02x:%02x:%02x\n",
+	dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n",
 		 netdev->name,
 		 ((hw->bus.speed == e1000_bus_speed_2500)
 		  ? "2.5Gb/s" : "unknown"),
 		 ((hw->bus.width == e1000_bus_width_pcie_x4)
 		  ? "Width x4" : (hw->bus.width == e1000_bus_width_pcie_x1)
 		  ? "Width x1" : "unknown"),
-		 netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2],
-		 netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]);
+		 netdev->dev_addr);
 
 	igb_read_part_num(hw, &part_num);
 	dev_info(&pdev->dev, "%s: PBA No: %06x-%03x\n", netdev->name,
@@ -1397,6 +1400,8 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter)
 
 	pci_read_config_word(pdev, PCI_COMMAND, &hw->bus.pci_cmd_word);
 
+	adapter->tx_ring_count = IGB_DEFAULT_TXD;
+	adapter->rx_ring_count = IGB_DEFAULT_RXD;
 	adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
 	adapter->rx_ps_hdr_size = 0; /* disable packet split */
 	adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
@@ -1985,7 +1990,7 @@ static void igb_configure_rx(struct igb_adapter *adapter)
  *
  * Free all transmit software resources
  **/
-static void igb_free_tx_resources(struct igb_ring *tx_ring)
+void igb_free_tx_resources(struct igb_ring *tx_ring)
 {
 	struct pci_dev *pdev = tx_ring->adapter->pdev;
 
@@ -2085,7 +2090,7 @@ static void igb_clean_all_tx_rings(struct igb_adapter *adapter)
  *
  * Free all receive software resources
  **/
-static void igb_free_rx_resources(struct igb_ring *rx_ring)
+void igb_free_rx_resources(struct igb_ring *rx_ring)
 {
 	struct pci_dev *pdev = rx_ring->adapter->pdev;
 
@@ -3923,8 +3928,10 @@ send_up:
 		next_buffer = &rx_ring->buffer_info[i];
 
 		if (!(staterr & E1000_RXD_STAT_EOP)) {
-			buffer_info->skb = xchg(&next_buffer->skb, skb);
-			buffer_info->dma = xchg(&next_buffer->dma, 0);
+			buffer_info->skb = next_buffer->skb;
+			buffer_info->dma = next_buffer->dma;
+			next_buffer->skb = skb;
+			next_buffer->dma = 0;
 			goto next_desc;
 		}
 
@@ -3942,8 +3949,6 @@ send_up:
 
 		igb_receive_skb(rx_ring, staterr, rx_desc, skb);
 
-		netdev->last_rx = jiffies;
-
 next_desc:
 		rx_desc->wb.upper.status_error = 0;