Merge branch 'upstream-net26' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6

1 files changed, 60 insertions, 71 deletions

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 0991648c53d..757d02f443a 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -169,21 +169,21 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
 static int e1000_set_mac(struct net_device *netdev, void *p);
 static irqreturn_t e1000_intr(int irq, void *data);
 static irqreturn_t e1000_intr_msi(int irq, void *data);
-static boolean_t e1000_clean_tx_irq(struct e1000_adapter *adapter,
-                                    struct e1000_tx_ring *tx_ring);
+static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
+			       struct e1000_tx_ring *tx_ring);
 #ifdef CONFIG_E1000_NAPI
 static int e1000_clean(struct napi_struct *napi, int budget);
-static boolean_t e1000_clean_rx_irq(struct e1000_adapter *adapter,
-                                    struct e1000_rx_ring *rx_ring,
-                                    int *work_done, int work_to_do);
-static boolean_t e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
-                                       struct e1000_rx_ring *rx_ring,
-                                       int *work_done, int work_to_do);
+static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
+			       struct e1000_rx_ring *rx_ring,
+			       int *work_done, int work_to_do);
+static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+				  struct e1000_rx_ring *rx_ring,
+				  int *work_done, int work_to_do);
 #else
-static boolean_t e1000_clean_rx_irq(struct e1000_adapter *adapter,
-                                    struct e1000_rx_ring *rx_ring);
-static boolean_t e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
-                                       struct e1000_rx_ring *rx_ring);
+static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
+			       struct e1000_rx_ring *rx_ring);
+static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+				  struct e1000_rx_ring *rx_ring);
 #endif
 static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
                                    struct e1000_rx_ring *rx_ring,
@@ -347,7 +347,6 @@ static void e1000_free_irq(struct e1000_adapter *adapter)
 static void
 e1000_irq_disable(struct e1000_adapter *adapter)
 {
-	atomic_inc(&adapter->irq_sem);
 	E1000_WRITE_REG(&adapter->hw, IMC, ~0);
 	E1000_WRITE_FLUSH(&adapter->hw);
 	synchronize_irq(adapter->pdev->irq);
@@ -361,10 +360,8 @@ e1000_irq_disable(struct e1000_adapter *adapter)
 static void
 e1000_irq_enable(struct e1000_adapter *adapter)
 {
-	if (likely(atomic_dec_and_test(&adapter->irq_sem))) {
-		E1000_WRITE_REG(&adapter->hw, IMS, IMS_ENABLE_MASK);
-		E1000_WRITE_FLUSH(&adapter->hw);
-	}
+	E1000_WRITE_REG(&adapter->hw, IMS, IMS_ENABLE_MASK);
+	E1000_WRITE_FLUSH(&adapter->hw);
 }
 
 static void
@@ -584,7 +581,7 @@ void e1000_power_up_phy(struct e1000_adapter *adapter)
 static void e1000_power_down_phy(struct e1000_adapter *adapter)
 {
 	/* Power down the PHY so no link is implied when interface is down *
-	 * The PHY cannot be powered down if any of the following is TRUE *
+	 * The PHY cannot be powered down if any of the following is true *
 	 * (a) WoL is enabled
 	 * (b) AMT is active
 	 * (c) SoL/IDER session is active */
@@ -638,7 +635,6 @@ e1000_down(struct e1000_adapter *adapter)
 
 #ifdef CONFIG_E1000_NAPI
 	napi_disable(&adapter->napi);
-	atomic_set(&adapter->irq_sem, 0);
 #endif
 	e1000_irq_disable(adapter);
 
@@ -673,7 +669,7 @@ e1000_reset(struct e1000_adapter *adapter)
 {
 	uint32_t pba = 0, tx_space, min_tx_space, min_rx_space;
 	uint16_t fc_high_water_mark = E1000_FC_HIGH_DIFF;
-	boolean_t legacy_pba_adjust = FALSE;
+	bool legacy_pba_adjust = false;
 
 	/* Repartition Pba for greater than 9k mtu
 	 * To take effect CTRL.RST is required.
@@ -687,7 +683,7 @@ e1000_reset(struct e1000_adapter *adapter)
 	case e1000_82540:
 	case e1000_82541:
 	case e1000_82541_rev_2:
-		legacy_pba_adjust = TRUE;
+		legacy_pba_adjust = true;
 		pba = E1000_PBA_48K;
 		break;
 	case e1000_82545:
@@ -698,7 +694,7 @@ e1000_reset(struct e1000_adapter *adapter)
 		break;
 	case e1000_82547:
 	case e1000_82547_rev_2:
-		legacy_pba_adjust = TRUE;
+		legacy_pba_adjust = true;
 		pba = E1000_PBA_30K;
 		break;
 	case e1000_82571:
@@ -716,7 +712,7 @@ e1000_reset(struct e1000_adapter *adapter)
 		break;
 	}
 
-	if (legacy_pba_adjust == TRUE) {
+	if (legacy_pba_adjust) {
 		if (adapter->netdev->mtu > E1000_RXBUFFER_8192)
 			pba -= 8; /* allocate more FIFO for Tx */
 
@@ -1366,15 +1362,15 @@ e1000_sw_init(struct e1000_adapter *adapter)
 
 	e1000_set_media_type(hw);
 
-	hw->wait_autoneg_complete = FALSE;
-	hw->tbi_compatibility_en = TRUE;
-	hw->adaptive_ifs = TRUE;
+	hw->wait_autoneg_complete = false;
+	hw->tbi_compatibility_en = true;
+	hw->adaptive_ifs = true;
 
 	/* Copper options */
 
 	if (hw->media_type == e1000_media_type_copper) {
 		hw->mdix = AUTO_ALL_MODES;
-		hw->disable_polarity_correction = FALSE;
+		hw->disable_polarity_correction = false;
 		hw->master_slave = E1000_MASTER_SLAVE;
 	}
 
@@ -1396,7 +1392,6 @@ e1000_sw_init(struct e1000_adapter *adapter)
 #endif
 
 	/* Explicitly disable IRQ since the NIC can be in any state. */
-	atomic_set(&adapter->irq_sem, 0);
 	e1000_irq_disable(adapter);
 
 	spin_lock_init(&adapter->stats_lock);
@@ -1576,7 +1571,7 @@ e1000_close(struct net_device *netdev)
  * @start: address of beginning of memory
  * @len: length of memory
  **/
-static boolean_t
+static bool
 e1000_check_64k_bound(struct e1000_adapter *adapter,
 		      void *start, unsigned long len)
 {
@@ -1587,10 +1582,10 @@ e1000_check_64k_bound(struct e1000_adapter *adapter,
 	 * write location to cross 64k boundary due to errata 23 */
 	if (adapter->hw.mac_type == e1000_82545 ||
 	    adapter->hw.mac_type == e1000_82546) {
-		return ((begin ^ (end - 1)) >> 16) != 0 ? FALSE : TRUE;
+		return ((begin ^ (end - 1)) >> 16) != 0 ? false : true;
 	}
 
-	return TRUE;
+	return true;
 }
 
 /**
@@ -2133,7 +2128,7 @@ e1000_configure_rx(struct e1000_adapter *adapter)
 	/* Enable 82543 Receive Checksum Offload for TCP and UDP */
 	if (hw->mac_type >= e1000_82543) {
 		rxcsum = E1000_READ_REG(hw, RXCSUM);
-		if (adapter->rx_csum == TRUE) {
+		if (adapter->rx_csum) {
 			rxcsum |= E1000_RXCSUM_TUOFL;
 
 			/* Enable 82571 IPv4 payload checksum for UDP fragments
@@ -2669,7 +2664,7 @@ e1000_watchdog(unsigned long data)
 	if (link) {
 		if (!netif_carrier_ok(netdev)) {
 			uint32_t ctrl;
-			boolean_t txb2b = 1;
+			bool txb2b = true;
 			e1000_get_speed_and_duplex(&adapter->hw,
 			                           &adapter->link_speed,
 			                           &adapter->link_duplex);
@@ -2691,12 +2686,12 @@ e1000_watchdog(unsigned long data)
 			adapter->tx_timeout_factor = 1;
 			switch (adapter->link_speed) {
 			case SPEED_10:
-				txb2b = 0;
+				txb2b = false;
 				netdev->tx_queue_len = 10;
 				adapter->tx_timeout_factor = 8;
 				break;
 			case SPEED_100:
-				txb2b = 0;
+				txb2b = false;
 				netdev->tx_queue_len = 100;
 				/* maybe add some timeout factor ? */
 				break;
@@ -2704,7 +2699,7 @@ e1000_watchdog(unsigned long data)
 
 			if ((adapter->hw.mac_type == e1000_82571 ||
 			     adapter->hw.mac_type == e1000_82572) &&
-			    txb2b == 0) {
+			    !txb2b) {
 				uint32_t tarc0;
 				tarc0 = E1000_READ_REG(&adapter->hw, TARC0);
 				tarc0 &= ~(1 << 21);
@@ -2802,7 +2797,7 @@ e1000_watchdog(unsigned long data)
 	E1000_WRITE_REG(&adapter->hw, ICS, E1000_ICS_RXDMT0);
 
 	/* Force detection of hung controller every watchdog period */
-	adapter->detect_tx_hung = TRUE;
+	adapter->detect_tx_hung = true;
 
 	/* With 82571 controllers, LAA may be overwritten due to controller
 	 * reset from the other port. Set the appropriate LAA in RAR[0] */
@@ -3025,12 +3020,12 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
 		if (++i == tx_ring->count) i = 0;
 		tx_ring->next_to_use = i;
 
-		return TRUE;
+		return true;
 	}
-	return FALSE;
+	return false;
 }
 
-static boolean_t
+static bool
 e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
               struct sk_buff *skb)
 {
@@ -3060,10 +3055,10 @@ e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
 		if (unlikely(++i == tx_ring->count)) i = 0;
 		tx_ring->next_to_use = i;
 
-		return TRUE;
+		return true;
 	}
 
-	return FALSE;
+	return false;
 }
 
 #define E1000_MAX_TXD_PWR	12
@@ -3836,11 +3831,8 @@ e1000_intr_msi(int irq, void *data)
 #endif
 	uint32_t icr = E1000_READ_REG(hw, ICR);
 
-#ifdef CONFIG_E1000_NAPI
-	/* read ICR disables interrupts using IAM, so keep up with our
-	 * enable/disable accounting */
-	atomic_inc(&adapter->irq_sem);
-#endif
+	/* in NAPI mode read ICR disables interrupts using IAM */
+
 	if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
 		hw->get_link_status = 1;
 		/* 80003ES2LAN workaround-- For packet buffer work-around on
@@ -3910,12 +3902,8 @@ e1000_intr(int irq, void *data)
 	             !(icr & E1000_ICR_INT_ASSERTED)))
 		return IRQ_NONE;
 
-	/* Interrupt Auto-Mask...upon reading ICR,
-	 * interrupts are masked.  No need for the
-	 * IMC write, but it does mean we should
-	 * account for it ASAP. */
-	if (likely(hw->mac_type >= e1000_82571))
-		atomic_inc(&adapter->irq_sem);
+	/* Interrupt Auto-Mask...upon reading ICR, interrupts are masked.  No
+	 * need for the IMC write */
 #endif
 
 	if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
@@ -3939,7 +3927,6 @@ e1000_intr(int irq, void *data)
 #ifdef CONFIG_E1000_NAPI
 	if (unlikely(hw->mac_type < e1000_82571)) {
 		/* disable interrupts, without the synchronize_irq bit */
-		atomic_inc(&adapter->irq_sem);
 		E1000_WRITE_REG(hw, IMC, ~0);
 		E1000_WRITE_FLUSH(hw);
 	}
@@ -3964,10 +3951,8 @@ e1000_intr(int irq, void *data)
 	 * in dead lock. Writing IMC forces 82547 into
 	 * de-assertion state.
 	 */
-	if (hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2) {
-		atomic_inc(&adapter->irq_sem);
+	if (hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2)
 		E1000_WRITE_REG(hw, IMC, ~0);
-	}
 
 	adapter->total_tx_bytes = 0;
 	adapter->total_rx_bytes = 0;
@@ -4038,7 +4023,7 @@ e1000_clean(struct napi_struct *napi, int budget)
  * @adapter: board private structure
  **/
 
-static boolean_t
+static bool
 e1000_clean_tx_irq(struct e1000_adapter *adapter,
                    struct e1000_tx_ring *tx_ring)
 {
@@ -4049,7 +4034,7 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
 #ifdef CONFIG_E1000_NAPI
 	unsigned int count = 0;
 #endif
-	boolean_t cleaned = FALSE;
+	bool cleaned = false;
 	unsigned int total_tx_bytes=0, total_tx_packets=0;
 
 	i = tx_ring->next_to_clean;
@@ -4057,7 +4042,7 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
 	eop_desc = E1000_TX_DESC(*tx_ring, eop);
 
 	while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
-		for (cleaned = FALSE; !cleaned; ) {
+		for (cleaned = false; !cleaned; ) {
 			tx_desc = E1000_TX_DESC(*tx_ring, i);
 			buffer_info = &tx_ring->buffer_info[i];
 			cleaned = (i == eop);
@@ -4105,7 +4090,7 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
 	if (adapter->detect_tx_hung) {
 		/* Detect a transmit hang in hardware, this serializes the
 		 * check with the clearing of time_stamp and movement of i */
-		adapter->detect_tx_hung = FALSE;
+		adapter->detect_tx_hung = false;
 		if (tx_ring->buffer_info[eop].dma &&
 		    time_after(jiffies, tx_ring->buffer_info[eop].time_stamp +
 		               (adapter->tx_timeout_factor * HZ))
@@ -4200,7 +4185,7 @@ e1000_rx_checksum(struct e1000_adapter *adapter,
  * @adapter: board private structure
  **/
 
-static boolean_t
+static bool
 #ifdef CONFIG_E1000_NAPI
 e1000_clean_rx_irq(struct e1000_adapter *adapter,
                    struct e1000_rx_ring *rx_ring,
@@ -4219,7 +4204,7 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
 	uint8_t last_byte;
 	unsigned int i;
 	int cleaned_count = 0;
-	boolean_t cleaned = FALSE;
+	bool cleaned = false;
 	unsigned int total_rx_bytes=0, total_rx_packets=0;
 
 	i = rx_ring->next_to_clean;
@@ -4247,7 +4232,7 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
 
 		next_buffer = &rx_ring->buffer_info[i];
 
-		cleaned = TRUE;
+		cleaned = true;
 		cleaned_count++;
 		pci_unmap_single(pdev,
 		                 buffer_info->dma,
@@ -4373,7 +4358,7 @@ next_desc:
  * @adapter: board private structure
  **/
 
-static boolean_t
+static bool
 #ifdef CONFIG_E1000_NAPI
 e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
                       struct e1000_rx_ring *rx_ring,
@@ -4393,7 +4378,7 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
 	unsigned int i, j;
 	uint32_t length, staterr;
 	int cleaned_count = 0;
-	boolean_t cleaned = FALSE;
+	bool cleaned = false;
 	unsigned int total_rx_bytes=0, total_rx_packets=0;
 
 	i = rx_ring->next_to_clean;
@@ -4420,7 +4405,7 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
 
 		next_buffer = &rx_ring->buffer_info[i];
 
-		cleaned = TRUE;
+		cleaned = true;
 		cleaned_count++;
 		pci_unmap_single(pdev, buffer_info->dma,
 				 buffer_info->length,
@@ -5001,7 +4986,8 @@ e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	uint32_t ctrl, rctl;
 
-	e1000_irq_disable(adapter);
+	if (!test_bit(__E1000_DOWN, &adapter->flags))
+		e1000_irq_disable(adapter);
 	adapter->vlgrp = grp;
 
 	if (grp) {
@@ -5038,7 +5024,8 @@ e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
 		}
 	}
 
-	e1000_irq_enable(adapter);
+	if (!test_bit(__E1000_DOWN, &adapter->flags))
+		e1000_irq_enable(adapter);
 }
 
 static void
@@ -5064,9 +5051,11 @@ e1000_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid)
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	uint32_t vfta, index;
 
-	e1000_irq_disable(adapter);
+	if (!test_bit(__E1000_DOWN, &adapter->flags))
+		e1000_irq_disable(adapter);
 	vlan_group_set_device(adapter->vlgrp, vid, NULL);
-	e1000_irq_enable(adapter);
+	if (!test_bit(__E1000_DOWN, &adapter->flags))
+		e1000_irq_enable(adapter);
 
 	if ((adapter->hw.mng_cookie.status &
 	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&