Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 64 insertions, 83 deletions

diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c
index a3e65fd26e09..b3fdc6977f2e 100644
--- a/drivers/net/ethernet/intel/e1000e/82571.c
+++ b/drivers/net/ethernet/intel/e1000e/82571.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel PRO/1000 Linux driver
-  Copyright(c) 1999 - 2011 Intel Corporation.
+  Copyright(c) 1999 - 2012 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
@@ -235,30 +235,42 @@ static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
  *  e1000_init_mac_params_82571 - Init MAC func ptrs.
  *  @hw: pointer to the HW structure
  **/
-static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
+static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
 {
-	struct e1000_hw *hw = &adapter->hw;
 	struct e1000_mac_info *mac = &hw->mac;
-	struct e1000_mac_operations *func = &mac->ops;
 	u32 swsm = 0;
 	u32 swsm2 = 0;
 	bool force_clear_smbi = false;
 
-	/* Set media type */
-	switch (adapter->pdev->device) {
+	/* Set media type and media-dependent function pointers */
+	switch (hw->adapter->pdev->device) {
 	case E1000_DEV_ID_82571EB_FIBER:
 	case E1000_DEV_ID_82572EI_FIBER:
 	case E1000_DEV_ID_82571EB_QUAD_FIBER:
 		hw->phy.media_type = e1000_media_type_fiber;
+		mac->ops.setup_physical_interface =
+		    e1000_setup_fiber_serdes_link_82571;
+		mac->ops.check_for_link = e1000e_check_for_fiber_link;
+		mac->ops.get_link_up_info =
+		    e1000e_get_speed_and_duplex_fiber_serdes;
 		break;
 	case E1000_DEV_ID_82571EB_SERDES:
-	case E1000_DEV_ID_82572EI_SERDES:
 	case E1000_DEV_ID_82571EB_SERDES_DUAL:
 	case E1000_DEV_ID_82571EB_SERDES_QUAD:
+	case E1000_DEV_ID_82572EI_SERDES:
 		hw->phy.media_type = e1000_media_type_internal_serdes;
+		mac->ops.setup_physical_interface =
+		    e1000_setup_fiber_serdes_link_82571;
+		mac->ops.check_for_link = e1000_check_for_serdes_link_82571;
+		mac->ops.get_link_up_info =
+		    e1000e_get_speed_and_duplex_fiber_serdes;
 		break;
 	default:
 		hw->phy.media_type = e1000_media_type_copper;
+		mac->ops.setup_physical_interface =
+		    e1000_setup_copper_link_82571;
+		mac->ops.check_for_link = e1000e_check_for_copper_link;
+		mac->ops.get_link_up_info = e1000e_get_speed_and_duplex_copper;
 		break;
 	}
 
@@ -269,38 +281,13 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
 	/* Adaptive IFS supported */
 	mac->adaptive_ifs = true;
 
-	/* check for link */
-	switch (hw->phy.media_type) {
-	case e1000_media_type_copper:
-		func->setup_physical_interface = e1000_setup_copper_link_82571;
-		func->check_for_link = e1000e_check_for_copper_link;
-		func->get_link_up_info = e1000e_get_speed_and_duplex_copper;
-		break;
-	case e1000_media_type_fiber:
-		func->setup_physical_interface =
-			e1000_setup_fiber_serdes_link_82571;
-		func->check_for_link = e1000e_check_for_fiber_link;
-		func->get_link_up_info =
-			e1000e_get_speed_and_duplex_fiber_serdes;
-		break;
-	case e1000_media_type_internal_serdes:
-		func->setup_physical_interface =
-			e1000_setup_fiber_serdes_link_82571;
-		func->check_for_link = e1000_check_for_serdes_link_82571;
-		func->get_link_up_info =
-			e1000e_get_speed_and_duplex_fiber_serdes;
-		break;
-	default:
-		return -E1000_ERR_CONFIG;
-		break;
-	}
-
+	/* MAC-specific function pointers */
 	switch (hw->mac.type) {
 	case e1000_82573:
-		func->set_lan_id = e1000_set_lan_id_single_port;
-		func->check_mng_mode = e1000e_check_mng_mode_generic;
-		func->led_on = e1000e_led_on_generic;
-		func->blink_led = e1000e_blink_led_generic;
+		mac->ops.set_lan_id = e1000_set_lan_id_single_port;
+		mac->ops.check_mng_mode = e1000e_check_mng_mode_generic;
+		mac->ops.led_on = e1000e_led_on_generic;
+		mac->ops.blink_led = e1000e_blink_led_generic;
 
 		/* FWSM register */
 		mac->has_fwsm = true;
@@ -314,14 +301,14 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
 		break;
 	case e1000_82574:
 	case e1000_82583:
-		func->set_lan_id = e1000_set_lan_id_single_port;
-		func->check_mng_mode = e1000_check_mng_mode_82574;
-		func->led_on = e1000_led_on_82574;
+		mac->ops.set_lan_id = e1000_set_lan_id_single_port;
+		mac->ops.check_mng_mode = e1000_check_mng_mode_82574;
+		mac->ops.led_on = e1000_led_on_82574;
 		break;
 	default:
-		func->check_mng_mode = e1000e_check_mng_mode_generic;
-		func->led_on = e1000e_led_on_generic;
-		func->blink_led = e1000e_blink_led_generic;
+		mac->ops.check_mng_mode = e1000e_check_mng_mode_generic;
+		mac->ops.led_on = e1000e_led_on_generic;
+		mac->ops.blink_led = e1000e_blink_led_generic;
 
 		/* FWSM register */
 		mac->has_fwsm = true;
@@ -342,11 +329,11 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
 
 		if (!(swsm2 & E1000_SWSM2_LOCK)) {
 			/* Only do this for the first interface on this card */
-			ew32(SWSM2,
-			    swsm2 | E1000_SWSM2_LOCK);
+			ew32(SWSM2, swsm2 | E1000_SWSM2_LOCK);
 			force_clear_smbi = true;
-		} else
+		} else {
 			force_clear_smbi = false;
+		}
 		break;
 	default:
 		force_clear_smbi = true;
@@ -383,7 +370,7 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
 	int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
 	s32 rc;
 
-	rc = e1000_init_mac_params_82571(adapter);
+	rc = e1000_init_mac_params_82571(hw);
 	if (rc)
 		return rc;
 
@@ -577,7 +564,6 @@ static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw)
 static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw)
 {
 	u32 extcnf_ctrl;
-	s32 ret_val = 0;
 	s32 i = 0;
 
 	extcnf_ctrl = er32(EXTCNF_CTRL);
@@ -599,12 +585,10 @@ static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw)
 		/* Release semaphores */
 		e1000_put_hw_semaphore_82573(hw);
 		e_dbg("Driver can't access the PHY\n");
-		ret_val = -E1000_ERR_PHY;
-		goto out;
+		return -E1000_ERR_PHY;
 	}
 
-out:
-	return ret_val;
+	return 0;
 }
 
 /**
@@ -809,7 +793,7 @@ static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw)
 	 * otherwise, commit the checksum to the flash NVM.
 	 */
 	if (hw->nvm.type != e1000_nvm_flash_hw)
-		return ret_val;
+		return 0;
 
 	/* Check for pending operations. */
 	for (i = 0; i < E1000_FLASH_UPDATES; i++) {
@@ -1134,7 +1118,7 @@ static s32 e1000_init_hw_82571(struct e1000_hw *hw)
 	e1000_initialize_hw_bits_82571(hw);
 
 	/* Initialize identification LED */
-	ret_val = e1000e_id_led_init(hw);
+	ret_val = mac->ops.id_led_init(hw);
 	if (ret_val)
 		e_dbg("Error initializing identification LED\n");
 		/* This is not fatal and we should not stop init due to this */
@@ -1159,7 +1143,7 @@ static s32 e1000_init_hw_82571(struct e1000_hw *hw)
 		E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
 
 	/* Setup link and flow control */
-	ret_val = e1000_setup_link_82571(hw);
+	ret_val = mac->ops.setup_link(hw);
 
 	/* Set the transmit descriptor write-back policy */
 	reg_data = er32(TXDCTL(0));
@@ -1227,6 +1211,10 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 	case e1000_82572:
 		reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26);
 		break;
+	case e1000_82574:
+	case e1000_82583:
+		reg |= (1 << 26);
+		break;
 	default:
 		break;
 	}
@@ -1281,18 +1269,16 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 		reg |= E1000_PBA_ECC_CORR_EN;
 		ew32(PBA_ECC, reg);
 	}
+
 	/*
 	 * Workaround for hardware errata.
 	 * Ensure that DMA Dynamic Clock gating is disabled on 82571 and 82572
 	 */
-
-        if ((hw->mac.type == e1000_82571) ||
-           (hw->mac.type == e1000_82572)) {
-                reg = er32(CTRL_EXT);
-                reg &= ~E1000_CTRL_EXT_DMA_DYN_CLK_EN;
-                ew32(CTRL_EXT, reg);
-        }
-
+	if ((hw->mac.type == e1000_82571) || (hw->mac.type == e1000_82572)) {
+		reg = er32(CTRL_EXT);
+		reg &= ~E1000_CTRL_EXT_DMA_DYN_CLK_EN;
+		ew32(CTRL_EXT, reg);
+	}
 
 	/* PCI-Ex Control Registers */
 	switch (hw->mac.type) {
@@ -1418,7 +1404,6 @@ bool e1000_check_phy_82574(struct e1000_hw *hw)
 {
 	u16 status_1kbt = 0;
 	u16 receive_errors = 0;
-	bool phy_hung = false;
 	s32 ret_val = 0;
 
 	/*
@@ -1426,19 +1411,18 @@ bool e1000_check_phy_82574(struct e1000_hw *hw)
 	 * read the Base1000T status register If both are max then PHY is hung.
 	 */
 	ret_val = e1e_rphy(hw, E1000_RECEIVE_ERROR_COUNTER, &receive_errors);
-
 	if (ret_val)
-		goto out;
+		return false;
 	if (receive_errors == E1000_RECEIVE_ERROR_MAX)  {
 		ret_val = e1e_rphy(hw, E1000_BASE1000T_STATUS, &status_1kbt);
 		if (ret_val)
-			goto out;
+			return false;
 		if ((status_1kbt & E1000_IDLE_ERROR_COUNT_MASK) ==
 		    E1000_IDLE_ERROR_COUNT_MASK)
-			phy_hung = true;
+			return true;
 	}
-out:
-	return phy_hung;
+
+	return false;
 }
 
 /**
@@ -1469,7 +1453,7 @@ static s32 e1000_setup_link_82571(struct e1000_hw *hw)
 		break;
 	}
 
-	return e1000e_setup_link(hw);
+	return e1000e_setup_link_generic(hw);
 }
 
 /**
@@ -1506,9 +1490,7 @@ static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw)
 	if (ret_val)
 		return ret_val;
 
-	ret_val = e1000e_setup_copper_link(hw);
-
-	return ret_val;
+	return e1000e_setup_copper_link(hw);
 }
 
 /**
@@ -1842,9 +1824,9 @@ static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw)
  **/
 static s32 e1000_read_mac_addr_82571(struct e1000_hw *hw)
 {
-	s32 ret_val = 0;
-
 	if (hw->mac.type == e1000_82571) {
+		s32 ret_val = 0;
+
 		/*
 		 * If there's an alternate MAC address place it in RAR0
 		 * so that it will override the Si installed default perm
@@ -1852,13 +1834,10 @@ static s32 e1000_read_mac_addr_82571(struct e1000_hw *hw)
 		 */
 		ret_val = e1000_check_alt_mac_addr_generic(hw);
 		if (ret_val)
-			goto out;
+			return ret_val;
 	}
 
-	ret_val = e1000_read_mac_addr_generic(hw);
-
-out:
-	return ret_val;
+	return e1000_read_mac_addr_generic(hw);
 }
 
 /**
@@ -1873,7 +1852,7 @@ static void e1000_power_down_phy_copper_82571(struct e1000_hw *hw)
 	struct e1000_phy_info *phy = &hw->phy;
 	struct e1000_mac_info *mac = &hw->mac;
 
-	if (!(phy->ops.check_reset_block))
+	if (!phy->ops.check_reset_block)
 		return;
 
 	/* If the management interface is not enabled, then power down */
@@ -1930,7 +1909,7 @@ static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw)
 static const struct e1000_mac_operations e82571_mac_ops = {
 	/* .check_mng_mode: mac type dependent */
 	/* .check_for_link: media type dependent */
-	.id_led_init		= e1000e_id_led_init,
+	.id_led_init		= e1000e_id_led_init_generic,
 	.cleanup_led		= e1000e_cleanup_led_generic,
 	.clear_hw_cntrs		= e1000_clear_hw_cntrs_82571,
 	.get_bus_info		= e1000e_get_bus_info_pcie,
@@ -1946,6 +1925,7 @@ static const struct e1000_mac_operations e82571_mac_ops = {
 	.setup_link		= e1000_setup_link_82571,
 	/* .setup_physical_interface: media type dependent */
 	.setup_led		= e1000e_setup_led_generic,
+	.config_collision_dist	= e1000e_config_collision_dist_generic,
 	.read_mac_addr		= e1000_read_mac_addr_82571,
 };
 
@@ -2007,6 +1987,7 @@ static const struct e1000_nvm_operations e82571_nvm_ops = {
 	.acquire		= e1000_acquire_nvm_82571,
 	.read			= e1000e_read_nvm_eerd,
 	.release		= e1000_release_nvm_82571,
+	.reload			= e1000e_reload_nvm_generic,
 	.update			= e1000_update_nvm_checksum_82571,
 	.valid_led_default	= e1000_valid_led_default_82571,
 	.validate		= e1000_validate_nvm_checksum_82571,