e1000e: add support for new 82574L part

This new part has the same feature set as previous parts with the addition
of MSI-X support.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 files changed, 738 insertions, 77 deletions

diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 462351ca2c8..b2c910c52df 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -38,6 +38,7 @@
  * 82573V Gigabit Ethernet Controller (Copper)
  * 82573E Gigabit Ethernet Controller (Copper)
  * 82573L Gigabit Ethernet Controller
+ * 82574L Gigabit Network Connection
  */
 
 #include <linux/netdevice.h>
@@ -54,6 +55,8 @@
 
 #define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000
 
+#define E1000_NVM_INIT_CTRL2_MNGM 0x6000 /* Manageability Operation Mode mask */
+
 static s32 e1000_get_phy_id_82571(struct e1000_hw *hw);
 static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw);
 static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw);
@@ -63,6 +66,8 @@ static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw);
 static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw);
 static s32 e1000_setup_link_82571(struct e1000_hw *hw);
 static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw);
+static bool e1000_check_mng_mode_82574(struct e1000_hw *hw);
+static s32 e1000_led_on_82574(struct e1000_hw *hw);
 
 /**
  *  e1000_init_phy_params_82571 - Init PHY func ptrs.
@@ -92,6 +97,9 @@ static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
 	case e1000_82573:
 		phy->type		 = e1000_phy_m88;
 		break;
+	case e1000_82574:
+		phy->type		 = e1000_phy_bm;
+		break;
 	default:
 		return -E1000_ERR_PHY;
 		break;
@@ -111,6 +119,10 @@ static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
 		if (phy->id != M88E1111_I_PHY_ID)
 			return -E1000_ERR_PHY;
 		break;
+	case e1000_82574:
+		if (phy->id != BME1000_E_PHY_ID_R2)
+			return -E1000_ERR_PHY;
+		break;
 	default:
 		return -E1000_ERR_PHY;
 		break;
@@ -150,6 +162,7 @@ static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
 
 	switch (hw->mac.type) {
 	case e1000_82573:
+	case e1000_82574:
 		if (((eecd >> 15) & 0x3) == 0x3) {
 			nvm->type = e1000_nvm_flash_hw;
 			nvm->word_size = 2048;
@@ -245,6 +258,17 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
 		break;
 	}
 
+	switch (hw->mac.type) {
+	case e1000_82574:
+		func->check_mng_mode = e1000_check_mng_mode_82574;
+		func->led_on = e1000_led_on_82574;
+		break;
+	default:
+		func->check_mng_mode = e1000e_check_mng_mode_generic;
+		func->led_on = e1000e_led_on_generic;
+		break;
+	}
+
 	return 0;
 }
 
@@ -330,6 +354,8 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
 static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
 {
 	struct e1000_phy_info *phy = &hw->phy;
+	s32 ret_val;
+	u16 phy_id = 0;
 
 	switch (hw->mac.type) {
 	case e1000_82571:
@@ -345,6 +371,20 @@ static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
 	case e1000_82573:
 		return e1000e_get_phy_id(hw);
 		break;
+	case e1000_82574:
+		ret_val = e1e_rphy(hw, PHY_ID1, &phy_id);
+		if (ret_val)
+			return ret_val;
+
+		phy->id = (u32)(phy_id << 16);
+		udelay(20);
+		ret_val = e1e_rphy(hw, PHY_ID2, &phy_id);
+		if (ret_val)
+			return ret_val;
+
+		phy->id |= (u32)(phy_id);
+		phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);
+		break;
 	default:
 		return -E1000_ERR_PHY;
 		break;
@@ -421,7 +461,7 @@ static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw)
 	if (ret_val)
 		return ret_val;
 
-	if (hw->mac.type != e1000_82573)
+	if (hw->mac.type != e1000_82573 && hw->mac.type != e1000_82574)
 		ret_val = e1000e_acquire_nvm(hw);
 
 	if (ret_val)
@@ -461,6 +501,7 @@ static s32 e1000_write_nvm_82571(struct e1000_hw *hw, u16 offset, u16 words,
 
 	switch (hw->mac.type) {
 	case e1000_82573:
+	case e1000_82574:
 		ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data);
 		break;
 	case e1000_82571:
@@ -735,7 +776,7 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 	 * Must acquire the MDIO ownership before MAC reset.
 	 * Ownership defaults to firmware after a reset.
 	 */
-	if (hw->mac.type == e1000_82573) {
+	if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
 		extcnf_ctrl = er32(EXTCNF_CTRL);
 		extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
 
@@ -776,7 +817,7 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 	 * Need to wait for Phy configuration completion before accessing
 	 * NVM and Phy.
 	 */
-	if (hw->mac.type == e1000_82573)
+	if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574)
 		msleep(25);
 
 	/* Clear any pending interrupt events. */
@@ -843,7 +884,7 @@ static s32 e1000_init_hw_82571(struct e1000_hw *hw)
 	ew32(TXDCTL(0), reg_data);
 
 	/* ...for both queues. */
-	if (mac->type != e1000_82573) {
+	if (mac->type != e1000_82573 && mac->type != e1000_82574) {
 		reg_data = er32(TXDCTL(1));
 		reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
 			   E1000_TXDCTL_FULL_TX_DESC_WB |
@@ -918,19 +959,28 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 	}
 
 	/* Device Control */
-	if (hw->mac.type == e1000_82573) {
+	if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
 		reg = er32(CTRL);
 		reg &= ~(1 << 29);
 		ew32(CTRL, reg);
 	}
 
 	/* Extended Device Control */
-	if (hw->mac.type == e1000_82573) {
+	if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
 		reg = er32(CTRL_EXT);
 		reg &= ~(1 << 23);
 		reg |= (1 << 22);
 		ew32(CTRL_EXT, reg);
 	}
+
+	/* PCI-Ex Control Register */
+	if (hw->mac.type == e1000_82574) {
+		reg = er32(GCR);
+		reg |= (1 << 22);
+		ew32(GCR, reg);
+	}
+
+	return;
 }
 
 /**
@@ -947,7 +997,7 @@ void e1000e_clear_vfta(struct e1000_hw *hw)
 	u32 vfta_offset = 0;
 	u32 vfta_bit_in_reg = 0;
 
-	if (hw->mac.type == e1000_82573) {
+	if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
 		if (hw->mng_cookie.vlan_id != 0) {
 			/*
 			 * The VFTA is a 4096b bit-field, each identifying
@@ -976,6 +1026,48 @@ void e1000e_clear_vfta(struct e1000_hw *hw)
 }
 
 /**
+ *  e1000_check_mng_mode_82574 - Check manageability is enabled
+ *  @hw: pointer to the HW structure
+ *
+ *  Reads the NVM Initialization Control Word 2 and returns true
+ *  (>0) if any manageability is enabled, else false (0).
+ **/
+static bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
+{
+	u16 data;
+
+	e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
+	return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0;
+}
+
+/**
+ *  e1000_led_on_82574 - Turn LED on
+ *  @hw: pointer to the HW structure
+ *
+ *  Turn LED on.
+ **/
+static s32 e1000_led_on_82574(struct e1000_hw *hw)
+{
+	u32 ctrl;
+	u32 i;
+
+	ctrl = hw->mac.ledctl_mode2;
+	if (!(E1000_STATUS_LU & er32(STATUS))) {
+		/*
+		 * If no link, then turn LED on by setting the invert bit
+		 * for each LED that's "on" (0x0E) in ledctl_mode2.
+		 */
+		for (i = 0; i < 4; i++)
+			if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) ==
+			    E1000_LEDCTL_MODE_LED_ON)
+				ctrl |= (E1000_LEDCTL_LED0_IVRT << (i * 8));
+	}
+	ew32(LEDCTL, ctrl);
+
+	return 0;
+}
+
+/**
  *  e1000_update_mc_addr_list_82571 - Update Multicast addresses
  *  @hw: pointer to the HW structure
  *  @mc_addr_list: array of multicast addresses to program
@@ -1018,7 +1110,8 @@ static s32 e1000_setup_link_82571(struct e1000_hw *hw)
 	 * the default flow control setting, so we explicitly
 	 * set it to full.
 	 */
-	if (hw->mac.type == e1000_82573)
+	if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
+	    hw->fc.type == e1000_fc_default)
 		hw->fc.type = e1000_fc_full;
 
 	return e1000e_setup_link(hw);
@@ -1045,6 +1138,7 @@ static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw)
 
 	switch (hw->phy.type) {
 	case e1000_phy_m88:
+	case e1000_phy_bm:
 		ret_val = e1000e_copper_link_setup_m88(hw);
 		break;
 	case e1000_phy_igp_2:
@@ -1114,11 +1208,10 @@ static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data)
 		return ret_val;
 	}
 
-	if (hw->mac.type == e1000_82573 &&
+	if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
 	    *data == ID_LED_RESERVED_F746)
 		*data = ID_LED_DEFAULT_82573;
-	else if (*data == ID_LED_RESERVED_0000 ||
-		 *data == ID_LED_RESERVED_FFFF)
+	else if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
 		*data = ID_LED_DEFAULT;
 
 	return 0;
@@ -1265,13 +1358,13 @@ static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw)
 }
 
 static struct e1000_mac_operations e82571_mac_ops = {
-	.mng_mode_enab		= E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT,
+	/* .check_mng_mode: mac type dependent */
 	/* .check_for_link: media type dependent */
 	.cleanup_led		= e1000e_cleanup_led_generic,
 	.clear_hw_cntrs		= e1000_clear_hw_cntrs_82571,
 	.get_bus_info		= e1000e_get_bus_info_pcie,
 	/* .get_link_up_info: media type dependent */
-	.led_on			= e1000e_led_on_generic,
+	/* .led_on: mac type dependent */
 	.led_off		= e1000e_led_off_generic,
 	.update_mc_addr_list	= e1000_update_mc_addr_list_82571,
 	.reset_hw		= e1000_reset_hw_82571,
@@ -1312,6 +1405,22 @@ static struct e1000_phy_operations e82_phy_ops_m88 = {
 	.write_phy_reg		= e1000e_write_phy_reg_m88,
 };
 
+static struct e1000_phy_operations e82_phy_ops_bm = {
+	.acquire_phy		= e1000_get_hw_semaphore_82571,
+	.check_reset_block	= e1000e_check_reset_block_generic,
+	.commit_phy		= e1000e_phy_sw_reset,
+	.force_speed_duplex	= e1000e_phy_force_speed_duplex_m88,
+	.get_cfg_done		= e1000e_get_cfg_done,
+	.get_cable_length	= e1000e_get_cable_length_m88,
+	.get_phy_info		= e1000e_get_phy_info_m88,
+	.read_phy_reg		= e1000e_read_phy_reg_bm2,
+	.release_phy		= e1000_put_hw_semaphore_82571,
+	.reset_phy		= e1000e_phy_hw_reset_generic,
+	.set_d0_lplu_state	= e1000_set_d0_lplu_state_82571,
+	.set_d3_lplu_state	= e1000e_set_d3_lplu_state,
+	.write_phy_reg		= e1000e_write_phy_reg_bm2,
+};
+
 static struct e1000_nvm_operations e82571_nvm_ops = {
 	.acquire_nvm		= e1000_acquire_nvm_82571,
 	.read_nvm		= e1000e_read_nvm_eerd,
@@ -1375,3 +1484,21 @@ struct e1000_info e1000_82573_info = {
 	.nvm_ops		= &e82571_nvm_ops,
 };
 
+struct e1000_info e1000_82574_info = {
+	.mac			= e1000_82574,
+	.flags			= FLAG_HAS_HW_VLAN_FILTER
+				  | FLAG_HAS_MSIX
+				  | FLAG_HAS_JUMBO_FRAMES
+				  | FLAG_HAS_WOL
+				  | FLAG_APME_IN_CTRL3
+				  | FLAG_RX_CSUM_ENABLED
+				  | FLAG_HAS_SMART_POWER_DOWN
+				  | FLAG_HAS_AMT
+				  | FLAG_HAS_CTRLEXT_ON_LOAD,
+	.pba			= 20,
+	.get_variants		= e1000_get_variants_82571,
+	.mac_ops		= &e82571_mac_ops,
+	.phy_ops		= &e82_phy_ops_bm,
+	.nvm_ops		= &e82571_nvm_ops,
+};
+
diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h
index 4b21fa99d68..48f79ecb82a 100644
--- a/drivers/net/e1000e/defines.h
+++ b/drivers/net/e1000e/defines.h
@@ -71,9 +71,11 @@
 #define E1000_CTRL_EXT_RO_DIS    0x00020000 /* Relaxed Ordering disable */
 #define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
 #define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES  0x00C00000
+#define E1000_CTRL_EXT_EIAME          0x01000000
 #define E1000_CTRL_EXT_DRV_LOAD       0x10000000 /* Driver loaded bit for FW */
 #define E1000_CTRL_EXT_IAME           0x08000000 /* Interrupt acknowledge Auto-mask */
 #define E1000_CTRL_EXT_INT_TIMER_CLR  0x20000000 /* Clear Interrupt timers after IMS clear */
+#define E1000_CTRL_EXT_PBA_CLR        0x80000000 /* PBA Clear */
 
 /* Receive Descriptor bit definitions */
 #define E1000_RXD_STAT_DD       0x01    /* Descriptor Done */
@@ -299,6 +301,7 @@
 #define E1000_RXCSUM_IPPCSE    0x00001000   /* IP payload checksum enable */
 
 /* Header split receive */
+#define E1000_RFCTL_ACK_DIS             0x00001000
 #define E1000_RFCTL_EXTEN               0x00008000
 #define E1000_RFCTL_IPV6_EX_DIS         0x00010000
 #define E1000_RFCTL_NEW_IPV6_EXT_DIS    0x00020000
@@ -363,6 +366,11 @@
 #define E1000_ICR_RXDMT0        0x00000010 /* Rx desc min. threshold (0) */
 #define E1000_ICR_RXT0          0x00000080 /* Rx timer intr (ring 0) */
 #define E1000_ICR_INT_ASSERTED  0x80000000 /* If this bit asserted, the driver should claim the interrupt */
+#define E1000_ICR_RXQ0          0x00100000 /* Rx Queue 0 Interrupt */
+#define E1000_ICR_RXQ1          0x00200000 /* Rx Queue 1 Interrupt */
+#define E1000_ICR_TXQ0          0x00400000 /* Tx Queue 0 Interrupt */
+#define E1000_ICR_TXQ1          0x00800000 /* Tx Queue 1 Interrupt */
+#define E1000_ICR_OTHER         0x01000000 /* Other Interrupts */
 
 /*
  * This defines the bits that are set in the Interrupt Mask
@@ -386,6 +394,11 @@
 #define E1000_IMS_RXSEQ     E1000_ICR_RXSEQ     /* Rx sequence error */
 #define E1000_IMS_RXDMT0    E1000_ICR_RXDMT0    /* Rx desc min. threshold */
 #define E1000_IMS_RXT0      E1000_ICR_RXT0      /* Rx timer intr */
+#define E1000_IMS_RXQ0      E1000_ICR_RXQ0      /* Rx Queue 0 Interrupt */
+#define E1000_IMS_RXQ1      E1000_ICR_RXQ1      /* Rx Queue 1 Interrupt */
+#define E1000_IMS_TXQ0      E1000_ICR_TXQ0      /* Tx Queue 0 Interrupt */
+#define E1000_IMS_TXQ1      E1000_ICR_TXQ1      /* Tx Queue 1 Interrupt */
+#define E1000_IMS_OTHER     E1000_ICR_OTHER     /* Other Interrupts */
 
 /* Interrupt Cause Set */
 #define E1000_ICS_LSC       E1000_ICR_LSC       /* Link Status Change */
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index ef66dc44fae..0a1916b0419 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -62,6 +62,11 @@ struct e1000_info;
 	e_printk(KERN_NOTICE, adapter, format, ## arg)
 
 
+/* Interrupt modes, as used by the IntMode paramter */
+#define E1000E_INT_MODE_LEGACY		0
+#define E1000E_INT_MODE_MSI		1
+#define E1000E_INT_MODE_MSIX		2
+
 /* Tx/Rx descriptor defines */
 #define E1000_DEFAULT_TXD		256
 #define E1000_MAX_TXD			4096
@@ -95,6 +100,7 @@ enum e1000_boards {
 	board_82571,
 	board_82572,
 	board_82573,
+	board_82574,
 	board_80003es2lan,
 	board_ich8lan,
 	board_ich9lan,
@@ -147,6 +153,12 @@ struct e1000_ring {
 	/* array of buffer information structs */
 	struct e1000_buffer *buffer_info;
 
+	char name[IFNAMSIZ + 5];
+	u32 ims_val;
+	u32 itr_val;
+	u16 itr_register;
+	int set_itr;
+
 	struct sk_buff *rx_skb_top;
 
 	struct e1000_queue_stats stats;
@@ -275,6 +287,9 @@ struct e1000_adapter {
 	u32 test_icr;
 
 	u32 msg_enable;
+	struct msix_entry *msix_entries;
+	int int_mode;
+	u32 eiac_mask;
 
 	u32 eeprom_wol;
 	u32 wol;
@@ -307,6 +322,7 @@ struct e1000_info {
 #define FLAG_HAS_SWSM_ON_LOAD             (1 << 6)
 #define FLAG_HAS_JUMBO_FRAMES             (1 << 7)
 #define FLAG_IS_ICH                       (1 << 9)
+#define FLAG_HAS_MSIX                     (1 << 10)
 #define FLAG_HAS_SMART_POWER_DOWN         (1 << 11)
 #define FLAG_IS_QUAD_PORT_A               (1 << 12)
 #define FLAG_IS_QUAD_PORT                 (1 << 13)
@@ -365,6 +381,8 @@ 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 void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
+extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
 
 extern unsigned int copybreak;
 
@@ -373,6 +391,7 @@ extern char *e1000e_get_hw_dev_name(struct e1000_hw *hw);
 extern struct e1000_info e1000_82571_info;
 extern struct e1000_info e1000_82572_info;
 extern struct e1000_info e1000_82573_info;
+extern struct e1000_info e1000_82574_info;
 extern struct e1000_info e1000_ich8_info;
 extern struct e1000_info e1000_ich9_info;
 extern struct e1000_info e1000_ich10_info;
@@ -453,6 +472,8 @@ extern enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id);
 extern s32 e1000e_determine_phy_address(struct e1000_hw *hw);
 extern s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data);
 extern s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data);
+extern s32 e1000e_read_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 *data);
+extern s32 e1000e_write_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 data);
 extern void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl);
 extern s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data);
 extern s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data);
@@ -523,7 +544,12 @@ static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
 	return hw->phy.ops.get_phy_info(hw);
 }
 
-extern bool e1000e_check_mng_mode(struct e1000_hw *hw);
+static inline s32 e1000e_check_mng_mode(struct e1000_hw *hw)
+{
+	return hw->mac.ops.check_mng_mode(hw);
+}
+
+extern bool e1000e_check_mng_mode_generic(struct e1000_hw *hw);
 extern bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw);
 extern s32 e1000e_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length);
 
diff --git a/drivers/net/e1000e/es2lan.c b/drivers/net/e1000e/es2lan.c
index dc552d7d6fa..da9c09c248e 100644
--- a/drivers/net/e1000e/es2lan.c
+++ b/drivers/net/e1000e/es2lan.c
@@ -1247,7 +1247,7 @@ static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw)
 }
 
 static struct e1000_mac_operations es2_mac_ops = {
-	.mng_mode_enab		= E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT,
+	.check_mng_mode		= e1000e_check_mng_mode_generic,
 	/* check_for_link dependent on media type */
 	.cleanup_led		= e1000e_cleanup_led_generic,
 	.clear_hw_cntrs		= e1000_clear_hw_cntrs_80003es2lan,
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index a89498dcb63..52b762eb174 100644
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -568,6 +568,7 @@ static int e1000_set_eeprom(struct net_device *netdev,
 	 * and flush shadow RAM for 82573 controllers
 	 */
 	if ((ret_val == 0) && ((first_word <= NVM_CHECKSUM_REG) ||
+			       (hw->mac.type == e1000_82574) ||
 			       (hw->mac.type == e1000_82573)))
 		e1000e_update_nvm_checksum(hw);
 
@@ -779,6 +780,7 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 		toggle = 0x7FFFF3FF;
 		break;
 	case e1000_82573:
+	case e1000_82574:
 	case e1000_ich8lan:
 	case e1000_ich9lan:
 	case e1000_ich10lan:
@@ -887,10 +889,18 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 	u32 shared_int = 1;
 	u32 irq = adapter->pdev->irq;
 	int i;
+	int ret_val = 0;
+	int int_mode = E1000E_INT_MODE_LEGACY;
 
 	*data = 0;
 
-	/* NOTE: we don't test MSI interrupts here, yet */
+	/* NOTE: we don't test MSI/MSI-X interrupts here, yet */
+	if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
+		int_mode = adapter->int_mode;
+		e1000e_reset_interrupt_capability(adapter);
+		adapter->int_mode = E1000E_INT_MODE_LEGACY;
+		e1000e_set_interrupt_capability(adapter);
+	}
 	/* Hook up test interrupt handler just for this test */
 	if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 			 netdev)) {
@@ -898,7 +908,8 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 	} else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
 		 netdev->name, netdev)) {
 		*data = 1;
-		return -1;
+		ret_val = -1;
+		goto out;
 	}
 	e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
 
@@ -988,7 +999,14 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 	/* Unhook test interrupt handler */
 	free_irq(irq, netdev);
 
-	return *data;
+out:
+	if (int_mode == E1000E_INT_MODE_MSIX) {
+		e1000e_reset_interrupt_capability(adapter);
+		adapter->int_mode = int_mode;
+		e1000e_set_interrupt_capability(adapter);
+	}
+
+	return ret_val;
 }
 
 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
@@ -1769,11 +1787,13 @@ static void e1000_led_blink_callback(unsigned long data)
 static int e1000_phys_id(struct net_device *netdev, u32 data)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
 
 	if (!data)
 		data = INT_MAX;
 
-	if (adapter->hw.phy.type == e1000_phy_ife) {
+	if ((hw->phy.type == e1000_phy_ife) ||
+	    (hw->mac.type == e1000_82574)) {
 		if (!adapter->blink_timer.function) {
 			init_timer(&adapter->blink_timer);
 			adapter->blink_timer.function =
@@ -1783,16 +1803,16 @@ static int e1000_phys_id(struct net_device *netdev, u32 data)
 		mod_timer(&adapter->blink_timer, jiffies);
 		msleep_interruptible(data * 1000);
 		del_timer_sync(&adapter->blink_timer);
-		e1e_wphy(&adapter->hw,
-				    IFE_PHY_SPECIAL_CONTROL_LED, 0);
+		if (hw->phy.type == e1000_phy_ife)
+			e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
 	} else {
-		e1000e_blink_led(&adapter->hw);
+		e1000e_blink_led(hw);
 		msleep_interruptible(data * 1000);
 	}
 
-	adapter->hw.mac.ops.led_off(&adapter->hw);
+	hw->mac.ops.led_off(hw);
 	clear_bit(E1000_LED_ON, &adapter->led_status);
-	adapter->hw.mac.ops.cleanup_led(&adapter->hw);
+	hw->mac.ops.cleanup_led(hw);
 
 	return 0;
 }
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index 5d2acc531b5..f66ed37a7f7 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -65,7 +65,11 @@ enum e1e_registers {
 	E1000_ICS      = 0x000C8, /* Interrupt Cause Set - WO */
 	E1000_IMS      = 0x000D0, /* Interrupt Mask Set - RW */
 	E1000_IMC      = 0x000D8, /* Interrupt Mask Clear - WO */
+	E1000_EIAC_82574 = 0x000DC, /* Ext. Interrupt Auto Clear - RW */
 	E1000_IAM      = 0x000E0, /* Interrupt Acknowledge Auto Mask */
+	E1000_IVAR     = 0x000E4, /* Interrupt Vector Allocation - RW */
+	E1000_EITR_82574_BASE = 0x000E8, /* Interrupt Throttling - RW */
+#define E1000_EITR_82574(_n) (E1000_EITR_82574_BASE + (_n << 2))
 	E1000_RCTL     = 0x00100, /* Rx Control - RW */
 	E1000_FCTTV    = 0x00170, /* Flow Control Transmit Timer Value - RW */
 	E1000_TXCW     = 0x00178, /* Tx Configuration Word - RW */
@@ -332,6 +336,7 @@ enum e1e_registers {
 #define E1000_DEV_ID_82573E			0x108B
 #define E1000_DEV_ID_82573E_IAMT		0x108C
 #define E1000_DEV_ID_82573L			0x109A
+#define E1000_DEV_ID_82574L			0x10D3
 
 #define E1000_DEV_ID_80003ES2LAN_COPPER_DPT	0x1096
 #define E1000_DEV_ID_80003ES2LAN_SERDES_DPT	0x1098
@@ -360,12 +365,15 @@ enum e1e_registers {
 #define E1000_DEV_ID_ICH10_D_BM_LM		0x10DE
 #define E1000_DEV_ID_ICH10_D_BM_LF		0x10DF
 
+#define E1000_REVISION_4 4
+
 #define E1000_FUNC_1 1
 
 enum e1000_mac_type {
 	e1000_82571,
 	e1000_82572,
 	e1000_82573,
+	e1000_82574,
 	e1000_80003es2lan,
 	e1000_ich8lan,
 	e1000_ich9lan,
@@ -700,8 +708,7 @@ struct e1000_host_mng_command_info {
 
 /* Function pointers and static data for the MAC. */
 struct e1000_mac_operations {
-	u32			mng_mode_enab;
-
+	bool (*check_mng_mode)(struct e1000_hw *);
 	s32  (*check_for_link)(struct e1000_hw *);
 	s32  (*cleanup_led)(struct e1000_hw *);
 	void (*clear_hw_cntrs)(struct e1000_hw *);
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 0e76bb0378f..019b9c0bcdc 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -422,6 +422,22 @@ static void e1000_release_swflag_ich8lan(struct e1000_hw *hw)
 }
 
 /**
+ *  e1000_check_mng_mode_ich8lan - Checks management mode
+ *  @hw: pointer to the HW structure
+ *
+ *  This checks if the adapter has manageability enabled.
+ *  This is a function pointer entry point only called by read/write
+ *  routines for the PHY and NVM parts.
+ **/
+static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw)
+{
+	u32 fwsm = er32(FWSM);
+
+	return (fwsm & E1000_FWSM_MODE_MASK) ==
+		(E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT);
+}
+
+/**
  *  e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
  *  @hw: pointer to the HW structure
  *
@@ -2400,7 +2416,7 @@ static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw)
 }
 
 static struct e1000_mac_operations ich8_mac_ops = {
-	.mng_mode_enab		= E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT,
+	.check_mng_mode		= e1000_check_mng_mode_ich8lan,
 	.check_for_link		= e1000e_check_for_copper_link,
 	.cleanup_led		= e1000_cleanup_led_ich8lan,
 	.clear_hw_cntrs		= e1000_clear_hw_cntrs_ich8lan,
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index f1f4e9dfd0a..c7337306ffa 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -2222,17 +2222,18 @@ static s32 e1000_mng_enable_host_if(struct e1000_hw *hw)
 }
 
 /**
- *  e1000e_check_mng_mode - check management mode
+ *  e1000e_check_mng_mode_generic - check management mode
  *  @hw: pointer to the HW structure
  *
  *  Reads the firmware semaphore register and returns true (>0) if
  *  manageability is enabled, else false (0).
  **/
-bool e1000e_check_mng_mode(struct e1000_hw *hw)
+bool e1000e_check_mng_mode_generic(struct e1000_hw *hw)
 {
 	u32 fwsm = er32(FWSM);
 
-	return (fwsm & E1000_FWSM_MODE_MASK) == hw->mac.ops.mng_mode_enab;
+	return (fwsm & E1000_FWSM_MODE_MASK) ==
+		(E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT);
 }
 
 /**
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 2d9bcb02d09..0925204cd2d 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -55,6 +55,7 @@ static const struct e1000_info *e1000_info_tbl[] = {
 	[board_82571]		= &e1000_82571_info,
 	[board_82572]		= &e1000_82572_info,
 	[board_82573]		= &e1000_82573_info,
+	[board_82574]		= &e1000_82574_info,
 	[board_80003es2lan]	= &e1000_es2_info,
 	[board_ich8lan]		= &e1000_ich8_info,
 	[board_ich9lan]		= &e1000_ich9_info,
@@ -1180,8 +1181,8 @@ static irqreturn_t e1000_intr(int irq, void *data)
 	struct net_device *netdev = data;
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
-
 	u32 rctl, icr = er32(ICR);
+
 	if (!icr)
 		return IRQ_NONE;  /* Not our interrupt */
 
@@ -1237,6 +1238,263 @@ static irqreturn_t e1000_intr(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t e1000_msix_other(int irq, void *data)
+{
+	struct net_device *netdev = data;
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 icr = er32(ICR);
+
+	if (!(icr & E1000_ICR_INT_ASSERTED)) {
+		ew32(IMS, E1000_IMS_OTHER);
+		return IRQ_NONE;
+	}
+
+	if (icr & adapter->eiac_mask)
+		ew32(ICS, (icr & adapter->eiac_mask));
+
+	if (icr & E1000_ICR_OTHER) {
+		if (!(icr & E1000_ICR_LSC))
+			goto no_link_interrupt;
+		hw->mac.get_link_status = 1;
+		/* guard against interrupt when we're going down */
+		if (!test_bit(__E1000_DOWN, &adapter->state))
+			mod_timer(&adapter->watchdog_timer, jiffies + 1);
+	}
+
+no_link_interrupt:
+	ew32(IMS, E1000_IMS_LSC | E1000_IMS_OTHER);
+
+	return IRQ_HANDLED;
+}
+
+
+static irqreturn_t e1000_intr_msix_tx(int irq, void *data)
+{
+	struct net_device *netdev = data;
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+
+
+	adapter->total_tx_bytes = 0;
+	adapter->total_tx_packets = 0;
+
+	if (!e1000_clean_tx_irq(adapter))
+		/* Ring was not completely cleaned, so fire another interrupt */
+		ew32(ICS, tx_ring->ims_val);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t e1000_intr_msix_rx(int irq, void *data)
+{
+	struct net_device *netdev = data;
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	/* Write the ITR value calculated at the end of the
+	 * previous interrupt.
+	 */
+	if (adapter->rx_ring->set_itr) {
+		writel(1000000000 / (adapter->rx_ring->itr_val * 256),
+		       adapter->hw.hw_addr + adapter->rx_ring->itr_register);
+		adapter->rx_ring->set_itr = 0;
+	}
+
+	if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
+		adapter->total_rx_bytes = 0;
+		adapter->total_rx_packets = 0;
+		__netif_rx_schedule(netdev, &adapter->napi);
+	}
+	return IRQ_HANDLED;
+}
+
+/**
+ * e1000_configure_msix - Configure MSI-X hardware
+ *
+ * e1000_configure_msix sets up the hardware to properly
+ * generate MSI-X interrupts.
+ **/
+static void e1000_configure_msix(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	int vector = 0;
+	u32 ctrl_ext, ivar = 0;
+
+	adapter->eiac_mask = 0;
+
+	/* Workaround issue with spurious interrupts on 82574 in MSI-X mode */
+	if (hw->mac.type == e1000_82574) {
+		u32 rfctl = er32(RFCTL);
+		rfctl |= E1000_RFCTL_ACK_DIS;
+		ew32(RFCTL, rfctl);
+	}
+
+#define E1000_IVAR_INT_ALLOC_VALID	0x8
+	/* Configure Rx vector */
+	rx_ring->ims_val = E1000_IMS_RXQ0;
+	adapter->eiac_mask |= rx_ring->ims_val;
+	if (rx_ring->itr_val)
+		writel(1000000000 / (rx_ring->itr_val * 256),
+		       hw->hw_addr + rx_ring->itr_register);
+	else
+		writel(1, hw->hw_addr + rx_ring->itr_register);
+	ivar = E1000_IVAR_INT_ALLOC_VALID | vector;
+
+	/* Configure Tx vector */
+	tx_ring->ims_val = E1000_IMS_TXQ0;
+	vector++;
+	if (tx_ring->itr_val)
+		writel(1000000000 / (tx_ring->itr_val * 256),
+		       hw->hw_addr + tx_ring->itr_register);
+	else
+		writel(1, hw->hw_addr + tx_ring->itr_register);
+	adapter->eiac_mask |= tx_ring->ims_val;
+	ivar |= ((E1000_IVAR_INT_ALLOC_VALID | vector) << 8);
+
+	/* set vector for Other Causes, e.g. link changes */
+	vector++;
+	ivar |= ((E1000_IVAR_INT_ALLOC_VALID | vector) << 16);
+	if (rx_ring->itr_val)
+		writel(1000000000 / (rx_ring->itr_val * 256),
+		       hw->hw_addr + E1000_EITR_82574(vector));
+	else
+		writel(1, hw->hw_addr + E1000_EITR_82574(vector));
+
+	/* Cause Tx interrupts on every write back */
+	ivar |= (1 << 31);
+
+	ew32(IVAR, ivar);
+
+	/* enable MSI-X PBA support */
+	ctrl_ext = er32(CTRL_EXT);
+	ctrl_ext |= E1000_CTRL_EXT_PBA_CLR;
+
+	/* Auto-Mask Other interrupts upon ICR read */
+#define E1000_EIAC_MASK_82574   0x01F00000
+	ew32(IAM, ~E1000_EIAC_MASK_82574 | E1000_IMS_OTHER);
+	ctrl_ext |= E1000_CTRL_EXT_EIAME;
+	ew32(CTRL_EXT, ctrl_ext);
+	e1e_flush();
+}
+
+void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter)
+{
+	if (adapter->msix_entries) {
+		pci_disable_msix(adapter->pdev);
+		kfree(adapter->msix_entries);
+		adapter->msix_entries = NULL;
+	} else if (adapter->flags & FLAG_MSI_ENABLED) {
+		pci_disable_msi(adapter->pdev);
+		adapter->flags &= ~FLAG_MSI_ENABLED;
+	}
+
+	return;
+}
+
+/**
+ * e1000e_set_interrupt_capability - set MSI or MSI-X if supported
+ *
+ * Attempt to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
+void e1000e_set_interrupt_capability(struct e1000_adapter *adapter)
+{
+	int err;
+	int numvecs, i;
+
+
+	switch (adapter->int_mode) {
+	case E1000E_INT_MODE_MSIX:
+		if (adapter->flags & FLAG_HAS_MSIX) {
+			numvecs = 3; /* RxQ0, TxQ0 and other */
+			adapter->msix_entries = kcalloc(numvecs,
+						      sizeof(struct msix_entry),
+						      GFP_KERNEL);
+			if (adapter->msix_entries) {
+				for (i = 0; i < numvecs; i++)
+					adapter->msix_entries[i].entry = i;
+
+				err = pci_enable_msix(adapter->pdev,
+						      adapter->msix_entries,
+						      numvecs);
+				if (err == 0)
+					return;
+			}
+			/* MSI-X failed, so fall through and try MSI */
+			e_err("Failed to initialize MSI-X interrupts.  "
+			      "Falling back to MSI interrupts.\n");
+			e1000e_reset_interrupt_capability(adapter);
+		}
+		adapter->int_mode = E1000E_INT_MODE_MSI;
+		/* Fall through */
+	case E1000E_INT_MODE_MSI:
+		if (!pci_enable_msi(adapter->pdev)) {
+			adapter->flags |= FLAG_MSI_ENABLED;
+		} else {
+			adapter->int_mode = E1000E_INT_MODE_LEGACY;
+			e_err("Failed to initialize MSI interrupts.  Falling "
+			      "back to legacy interrupts.\n");
+		}
+		/* Fall through */
+	case E1000E_INT_MODE_LEGACY:
+		/* Don't do anything; this is the system default */
+		break;
+	}
+
+	return;
+}
+
+/**
+ * e1000_request_msix - Initialize MSI-X interrupts
+ *
+ * e1000_request_msix allocates MSI-X vectors and requests interrupts from the
+ * kernel.