Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next-2.6

drivers/net/e1000e/e1000.h

@@ -364,6 +364,7 @@ struct e1000_adapter {
 	/* structs defined in e1000_hw.h */
 	struct e1000_hw hw;
 
+	spinlock_t stats64_lock;
 	struct e1000_hw_stats stats;
 	struct e1000_phy_info phy_info;
 	struct e1000_phy_stats phy_stats;
@@ -494,7 +495,9 @@ extern int e1000e_setup_rx_resources(struct e1000_adapter *adapter);
 extern int e1000e_setup_tx_resources(struct e1000_adapter *adapter);
 extern void e1000e_free_rx_resources(struct e1000_adapter *adapter);
 extern void e1000e_free_tx_resources(struct e1000_adapter *adapter);
-extern void e1000e_update_stats(struct e1000_adapter *adapter);
+extern struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
+                                                    struct rtnl_link_stats64
+                                                    *stats);
 extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
 extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
 extern void e1000e_get_hw_control(struct e1000_adapter *adapter);

drivers/net/e1000e/ethtool.c

@@ -53,8 +53,8 @@ struct e1000_stats {
 #define E1000_NETDEV_STAT(str, m) { \
 		.stat_string = str, \
 		.type = NETDEV_STATS, \
-			.sizeof_stat = sizeof(((struct net_device *)0)->m), \
-			.stat_offset = offsetof(struct net_device, m) }
+		.sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
+		.stat_offset = offsetof(struct rtnl_link_stats64, m) }
 
 static const struct e1000_stats e1000_gstrings_stats[] = {
 	E1000_STAT("rx_packets", stats.gprc),
@@ -65,21 +65,21 @@ static const struct e1000_stats e1000_gstrings_stats[] = {
 	E1000_STAT("tx_broadcast", stats.bptc),
 	E1000_STAT("rx_multicast", stats.mprc),
 	E1000_STAT("tx_multicast", stats.mptc),
-	E1000_NETDEV_STAT("rx_errors", stats.rx_errors),
-	E1000_NETDEV_STAT("tx_errors", stats.tx_errors),
-	E1000_NETDEV_STAT("tx_dropped", stats.tx_dropped),
+	E1000_NETDEV_STAT("rx_errors", rx_errors),
+	E1000_NETDEV_STAT("tx_errors", tx_errors),
+	E1000_NETDEV_STAT("tx_dropped", tx_dropped),
 	E1000_STAT("multicast", stats.mprc),
 	E1000_STAT("collisions", stats.colc),
-	E1000_NETDEV_STAT("rx_length_errors", stats.rx_length_errors),
-	E1000_NETDEV_STAT("rx_over_errors", stats.rx_over_errors),
+	E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
+	E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
 	E1000_STAT("rx_crc_errors", stats.crcerrs),
-	E1000_NETDEV_STAT("rx_frame_errors", stats.rx_frame_errors),
+	E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
 	E1000_STAT("rx_no_buffer_count", stats.rnbc),
 	E1000_STAT("rx_missed_errors", stats.mpc),
 	E1000_STAT("tx_aborted_errors", stats.ecol),
 	E1000_STAT("tx_carrier_errors", stats.tncrs),
-	E1000_NETDEV_STAT("tx_fifo_errors", stats.tx_fifo_errors),
-	E1000_NETDEV_STAT("tx_heartbeat_errors", stats.tx_heartbeat_errors),
+	E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
+	E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
 	E1000_STAT("tx_window_errors", stats.latecol),
 	E1000_STAT("tx_abort_late_coll", stats.latecol),
 	E1000_STAT("tx_deferred_ok", stats.dc),
@@ -684,20 +684,13 @@ static int e1000_set_ringparam(struct net_device *netdev,
 	rx_old = adapter->rx_ring;
 
 	err = -ENOMEM;
-	tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
+	tx_ring = kmemdup(tx_old, sizeof(struct e1000_ring), GFP_KERNEL);
 	if (!tx_ring)
 		goto err_alloc_tx;
-	/*
-	 * use a memcpy to save any previously configured
-	 * items like napi structs from having to be
-	 * reinitialized
-	 */
-	memcpy(tx_ring, tx_old, sizeof(struct e1000_ring));
 
-	rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
+	rx_ring = kmemdup(rx_old, sizeof(struct e1000_ring), GFP_KERNEL);
 	if (!rx_ring)
 		goto err_alloc_rx;
-	memcpy(rx_ring, rx_old, sizeof(struct e1000_ring));
 
 	adapter->tx_ring = tx_ring;
 	adapter->rx_ring = rx_ring;
@@ -1255,7 +1248,6 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
 {
 	struct e1000_hw *hw = &adapter->hw;
 	u32 ctrl_reg = 0;
-	u32 stat_reg = 0;
 	u16 phy_reg = 0;
 	s32 ret_val = 0;
 
@@ -1363,8 +1355,7 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
 		 * Set the ILOS bit on the fiber Nic if half duplex link is
 		 * detected.
 		 */
-		stat_reg = er32(STATUS);
-		if ((stat_reg & E1000_STATUS_FD) == 0)
+		if ((er32(STATUS) & E1000_STATUS_FD) == 0)
 			ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
 	}
 
@@ -1982,14 +1973,15 @@ static void e1000_get_ethtool_stats(struct net_device *netdev,
 				    u64 *data)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct rtnl_link_stats64 net_stats;
 	int i;
 	char *p = NULL;
 
-	e1000e_update_stats(adapter);
+	e1000e_get_stats64(netdev, &net_stats);
 	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
 		switch (e1000_gstrings_stats[i].type) {
 		case NETDEV_STATS:
-			p = (char *) netdev +
+			p = (char *) &net_stats +
 					e1000_gstrings_stats[i].stat_offset;
 			break;
 		case E1000_STATS:

drivers/net/e1000e/ich8lan.c

@@ -2104,7 +2104,6 @@ static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw)
 {
 	union ich8_hws_flash_status hsfsts;
 	s32 ret_val = -E1000_ERR_NVM;
-	s32 i = 0;
 
 	hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
 
@@ -2140,6 +2139,8 @@ static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw)
 		ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
 		ret_val = 0;
 	} else {
+		s32 i = 0;
+
 		/*
 		 * Otherwise poll for sometime so the current
 		 * cycle has a chance to end before giving up.

drivers/net/e1000e/lib.c

@@ -1978,15 +1978,15 @@ static s32 e1000_ready_nvm_eeprom(struct e1000_hw *hw)
 {
 	struct e1000_nvm_info *nvm = &hw->nvm;
 	u32 eecd = er32(EECD);
-	u16 timeout = 0;
 	u8 spi_stat_reg;
 
 	if (nvm->type == e1000_nvm_eeprom_spi) {
+		u16 timeout = NVM_MAX_RETRY_SPI;
+
 		/* Clear SK and CS */
 		eecd &= ~(E1000_EECD_CS | E1000_EECD_SK);
 		ew32(EECD, eecd);
 		udelay(1);
-		timeout = NVM_MAX_RETRY_SPI;
 
 		/*
 		 * Read "Status Register" repeatedly until the LSB is cleared.

drivers/net/e1000e/netdev.c

@@ -900,8 +900,6 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
 
 	adapter->total_rx_bytes += total_rx_bytes;
 	adapter->total_rx_packets += total_rx_packets;
-	netdev->stats.rx_bytes += total_rx_bytes;
-	netdev->stats.rx_packets += total_rx_packets;
 	return cleaned;
 }
 
@@ -1057,8 +1055,6 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
 	}
 	adapter->total_tx_bytes += total_tx_bytes;
 	adapter->total_tx_packets += total_tx_packets;
-	netdev->stats.tx_bytes += total_tx_bytes;
-	netdev->stats.tx_packets += total_tx_packets;
 	return count < tx_ring->count;
 }
 
@@ -1245,8 +1241,6 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
 
 	adapter->total_rx_bytes += total_rx_bytes;
 	adapter->total_rx_packets += total_rx_packets;
-	netdev->stats.rx_bytes += total_rx_bytes;
-	netdev->stats.rx_packets += total_rx_packets;
 	return cleaned;
 }
 
@@ -1426,8 +1420,6 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
 
 	adapter->total_rx_bytes += total_rx_bytes;
 	adapter->total_rx_packets += total_rx_packets;
-	netdev->stats.rx_bytes += total_rx_bytes;
-	netdev->stats.rx_packets += total_rx_packets;
 	return cleaned;
 }
 
@@ -2728,7 +2720,6 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
 {
 	struct e1000_hw *hw = &adapter->hw;
 	u32 rctl, rfctl;
-	u32 psrctl = 0;
 	u32 pages = 0;
 
 	/* Workaround Si errata on 82579 - configure jumbo frame flow */
@@ -2827,6 +2818,8 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
 		adapter->rx_ps_pages = 0;
 
 	if (adapter->rx_ps_pages) {
+		u32 psrctl = 0;
+
 		/* Configure extra packet-split registers */
 		rfctl = er32(RFCTL);
 		rfctl |= E1000_RFCTL_EXTEN;
@@ -3028,7 +3021,6 @@ static void e1000_set_multi(struct net_device *netdev)
 	struct netdev_hw_addr *ha;
 	u8  *mta_list;
 	u32 rctl;
-	int i;
 
 	/* Check for Promiscuous and All Multicast modes */
 
@@ -3051,12 +3043,13 @@ static void e1000_set_multi(struct net_device *netdev)
 	ew32(RCTL, rctl);
 
 	if (!netdev_mc_empty(netdev)) {
+		int i = 0;
+
 		mta_list = kmalloc(netdev_mc_count(netdev) * 6, GFP_ATOMIC);
 		if (!mta_list)
 			return;
 
 		/* prepare a packed array of only addresses. */
-		i = 0;
 		netdev_for_each_mc_addr(ha, netdev)
 			memcpy(mta_list + (i++ * ETH_ALEN), ha->addr, ETH_ALEN);
 
@@ -3338,6 +3331,8 @@ int e1000e_up(struct e1000_adapter *adapter)
 	return 0;
 }
 
+static void e1000e_update_stats(struct e1000_adapter *adapter);
+
 void e1000e_down(struct e1000_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
@@ -3372,6 +3367,11 @@ void e1000e_down(struct e1000_adapter *adapter)
 	del_timer_sync(&adapter->phy_info_timer);
 
 	netif_carrier_off(netdev);
+
+	spin_lock(&adapter->stats64_lock);
+	e1000e_update_stats(adapter);
+	spin_unlock(&adapter->stats64_lock);
+
 	adapter->link_speed = 0;
 	adapter->link_duplex = 0;
 
@@ -3413,6 +3413,8 @@ static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
 	adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
 	adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
 
+	spin_lock_init(&adapter->stats64_lock);
+
 	e1000e_set_interrupt_capability(adapter);
 
 	if (e1000_alloc_queues(adapter))
@@ -3886,7 +3888,7 @@ static void e1000e_update_phy_stats(struct e1000_adapter *adapter)
  * e1000e_update_stats - Update the board statistics counters
  * @adapter: board private structure
  **/
-void e1000e_update_stats(struct e1000_adapter *adapter)
+static void e1000e_update_stats(struct e1000_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
 	struct e1000_hw *hw = &adapter->hw;
@@ -3998,10 +4000,11 @@ static void e1000_phy_read_status(struct e1000_adapter *adapter)
 {
 	struct e1000_hw *hw = &adapter->hw;
 	struct e1000_phy_regs *phy = &adapter->phy_regs;
-	int ret_val;
 
 	if ((er32(STATUS) & E1000_STATUS_LU) &&
 	    (adapter->hw.phy.media_type == e1000_media_type_copper)) {
+		int ret_val;
+
 		ret_val  = e1e_rphy(hw, PHY_CONTROL, &phy->bmcr);
 		ret_val |= e1e_rphy(hw, PHY_STATUS, &phy->bmsr);
 		ret_val |= e1e_rphy(hw, PHY_AUTONEG_ADV, &phy->advertise);
@@ -4147,7 +4150,6 @@ static void e1000_watchdog_task(struct work_struct *work)
 	struct e1000_ring *tx_ring = adapter->tx_ring;
 	struct e1000_hw *hw = &adapter->hw;
 	u32 link, tctl;
-	int tx_pending = 0;
 
 	link = e1000e_has_link(adapter);
 	if ((netif_carrier_ok(netdev)) && link) {
@@ -4285,7 +4287,9 @@ static void e1000_watchdog_task(struct work_struct *work)
 	}
 
 link_up:
+	spin_lock(&adapter->stats64_lock);
 	e1000e_update_stats(adapter);
+	spin_unlock(&adapter->stats64_lock);
 
 	mac->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
 	adapter->tpt_old = adapter->stats.tpt;
@@ -4299,10 +4303,8 @@ static void e1000_watchdog_task(struct work_struct *work)
 
 	e1000e_update_adaptive(&adapter->hw);
 
-	if (!netif_carrier_ok(netdev)) {
-		tx_pending = (e1000_desc_unused(tx_ring) + 1 <
-			       tx_ring->count);
-		if (tx_pending) {
+	if (!netif_carrier_ok(netdev) &&
+	    (e1000_desc_unused(tx_ring) + 1 < tx_ring->count)) {
 		/*
 		 * We've lost link, so the controller stops DMA,
 		 * but we've got queued Tx work that's never going
@@ -4314,7 +4316,6 @@ static void e1000_watchdog_task(struct work_struct *work)
 		/* return immediately since reset is imminent */
 		return;
 	}
-	}
 
 	/* Simple mode for Interrupt Throttle Rate (ITR) */
 	if (adapter->itr_setting == 4) {
@@ -4384,13 +4385,13 @@ static int e1000_tso(struct e1000_adapter *adapter,
 	u32 cmd_length = 0;
 	u16 ipcse = 0, tucse, mss;
 	u8 ipcss, ipcso, tucss, tucso, hdr_len;
-	int err;
 
 	if (!skb_is_gso(skb))
 		return 0;
 
 	if (skb_header_cloned(skb)) {
-		err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
+		int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
+
 		if (err)
 			return err;
 	}
@@ -4897,16 +4898,55 @@ static void e1000_reset_task(struct work_struct *work)
 }
 
 /**
- * e1000_get_stats - Get System Network Statistics
+ * e1000_get_stats64 - Get System Network Statistics
  * @netdev: network interface device structure
+ * @stats: rtnl_link_stats64 pointer
  *
  * Returns the address of the device statistics structure.
- * The statistics are actually updated from the timer callback.
  **/
-static struct net_device_stats *e1000_get_stats(struct net_device *netdev)
+struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
+                                             struct rtnl_link_stats64 *stats)
 {
-	/* only return the current stats */
-	return &netdev->stats;
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	memset(stats, 0, sizeof(struct rtnl_link_stats64));
+	spin_lock(&adapter->stats64_lock);
+	e1000e_update_stats(adapter);
+	/* Fill out the OS statistics structure */
+	stats->rx_bytes = adapter->stats.gorc;
+	stats->rx_packets = adapter->stats.gprc;
+	stats->tx_bytes = adapter->stats.gotc;
+	stats->tx_packets = adapter->stats.gptc;
+	stats->multicast = adapter->stats.mprc;
+	stats->collisions = adapter->stats.colc;
+
+	/* Rx Errors */
+
+	/*
+	 * RLEC on some newer hardware can be incorrect so build
+	 * our own version based on RUC and ROC
+	 */
+	stats->rx_errors = adapter->stats.rxerrc +
+		adapter->stats.crcerrs + adapter->stats.algnerrc +
+		adapter->stats.ruc + adapter->stats.roc +
+		adapter->stats.cexterr;
+	stats->rx_length_errors = adapter->stats.ruc +
+					      adapter->stats.roc;
+	stats->rx_crc_errors = adapter->stats.crcerrs;
+	stats->rx_frame_errors = adapter->stats.algnerrc;
+	stats->rx_missed_errors = adapter->stats.mpc;
+
+	/* Tx Errors */
+	stats->tx_errors = adapter->stats.ecol +
+				       adapter->stats.latecol;
+	stats->tx_aborted_errors = adapter->stats.ecol;
+	stats->tx_window_errors = adapter->stats.latecol;
+	stats->tx_carrier_errors = adapter->stats.tncrs;
+
+	/* Tx Dropped needs to be maintained elsewhere */
+
+	spin_unlock(&adapter->stats64_lock);
+	return stats;
 }
 
 /**
@@ -5476,9 +5516,10 @@ static irqreturn_t e1000_intr_msix(int irq, void *data)
 {
 	struct net_device *netdev = data;
 	struct e1000_adapter *adapter = netdev_priv(netdev);
-	int vector, msix_irq;
 
 	if (adapter->msix_entries) {
+		int vector, msix_irq;
+
 		vector = 0;
 		msix_irq = adapter->msix_entries[vector].vector;
 		disable_irq(msix_irq);
@@ -5675,7 +5716,7 @@ static const struct net_device_ops e1000e_netdev_ops = {
 	.ndo_open		= e1000_open,
 	.ndo_stop		= e1000_close,
 	.ndo_start_xmit		= e1000_xmit_frame,
-	.ndo_get_stats		= e1000_get_stats,
+	.ndo_get_stats64	= e1000e_get_stats64,
 	.ndo_set_multicast_list	= e1000_set_multi,
 	.ndo_set_mac_address	= e1000_set_mac,
 	.ndo_change_mtu		= e1000_change_mtu,

drivers/net/e1000e/phy.c

@@ -2409,9 +2409,7 @@ static u32 e1000_get_phy_addr_for_bm_page(u32 page, u32 reg)
 s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data)
 {
 	s32 ret_val;
-	u32 page_select = 0;
 	u32 page = offset >> IGP_PAGE_SHIFT;
-	u32 page_shift = 0;
 
 	ret_val = hw->phy.ops.acquire(hw);
 	if (ret_val)
@@ -2427,6 +2425,8 @@ s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data)
 	hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset);
 
 	if (offset > MAX_PHY_MULTI_PAGE_REG) {
+		u32 page_shift, page_select;
+
 		/*
 		 * Page select is register 31 for phy address 1 and 22 for
 		 * phy address 2 and 3. Page select is shifted only for
@@ -2468,9 +2468,7 @@ s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data)
 s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data)
 {
 	s32 ret_val;
-	u32 page_select = 0;
 	u32 page = offset >> IGP_PAGE_SHIFT;
-	u32 page_shift = 0;
 
 	ret_val = hw->phy.ops.acquire(hw);
 	if (ret_val)
@@ -2486,6 +2484,8 @@ s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data)
 	hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset);
 
 	if (offset > MAX_PHY_MULTI_PAGE_REG) {
+		u32 page_shift, page_select;
+
 		/*
 		 * Page select is register 31 for phy address 1 and 22 for
 		 * phy address 2 and 3. Page select is shifted only for

drivers/net/igb/e1000_82575.c

@@ -129,6 +129,7 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 		break;
 	case E1000_DEV_ID_82580_COPPER:
 	case E1000_DEV_ID_82580_FIBER:
+	case E1000_DEV_ID_82580_QUAD_FIBER:
 	case E1000_DEV_ID_82580_SERDES:
 	case E1000_DEV_ID_82580_SGMII:
 	case E1000_DEV_ID_82580_COPPER_DUAL:

drivers/net/igb/e1000_hw.h

@@ -54,6 +54,7 @@ struct e1000_hw;
 #define E1000_DEV_ID_82580_SERDES             0x1510
 #define E1000_DEV_ID_82580_SGMII              0x1511
 #define E1000_DEV_ID_82580_COPPER_DUAL        0x1516
+#define E1000_DEV_ID_82580_QUAD_FIBER         0x1527
 #define E1000_DEV_ID_DH89XXCC_SGMII           0x0438
 #define E1000_DEV_ID_DH89XXCC_SERDES          0x043A
 #define E1000_DEV_ID_DH89XXCC_BACKPLANE       0x043C

drivers/net/igb/igb_main.c

@@ -68,6 +68,7 @@ static DEFINE_PCI_DEVICE_TABLE(igb_pci_tbl) = {
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_SGMII), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_FIBER), board_82575 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_QUAD_FIBER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SERDES), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SGMII), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER_DUAL), board_82575 },