ixgbe: driver for Intel(R) 82598 PCI-Express 10GbE adapters (v4)

This patch adds support for the Intel 82598 PCI-Express 10GbE
chipset. Devices will be available on the market soon.

This version of the driver is largely the same as the last release:

  * Driver uses a single RX and single TX queue, each using 1 MSI-X
  irq vector.
  * Driver runs in NAPI mode only
  * Driver is largely multiqueue-ready (TM)

Changes since 20070803:
  * removed wrappers for hardware functions
  * incorporated e1000e-style HW api reorganization code
  * sparse/checkpatch cleanups, namespace cleanups
  * driver prints out extra debugging information at load time
    identifying adapter board number, mac, phy types
  * removed ixgbe_api.c, ixgbe_api.h, ixgbe_osdep.h
  * driver update to 1.1.18
  * removed ixgbe.txt which contained no useful info anymore

[ Integrated napi_struct changes from Auke as well... -DaveM ]
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: NAyyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -2030,16 +2030,14 @@ W:	http://sourceforge.net/projects/e1000/
 S:	Supported
 
 INTEL PRO/10GbE SUPPORT
-P:	Jeff Kirsher
-M:	jeffrey.t.kirsher@intel.com
 P:	Ayyappan Veeraiyan
 M:	ayyappan.veeraiyan@intel.com
-P:	John Ronciak
-M:	john.ronciak@intel.com
-P:	Jesse Brandeburg
-M:	jesse.brandeburg@intel.com
 P:	Auke Kok
 M:	auke-jan.h.kok@intel.com
+P:	Jesse Brandeburg
+M:	jesse.brandeburg@intel.com
+P:	John Ronciak
+M:	john.ronciak@intel.com
 L:	e1000-devel@lists.sourceforge.net
 W:	http://sourceforge.net/projects/e1000/
 S:	Supported

drivers/net/Kconfig

@@ -2518,12 +2518,35 @@ config EHEA
 	  To compile the driver as a module, choose M here. The module
 	  will be called ehea.
 
+config IXGBE
+	tristate "Intel(R) 10GbE PCI Express adapters support"
+	depends on PCI
+	---help---
+	  This driver supports Intel(R) 10GbE PCI Express family of
+	  adapters.  For more information on how to identify your adapter, go
+	  to the Adapter & Driver ID Guide at:
+
+	  <http://support.intel.com/support/network/adapter/pro100/21397.htm>
+
+	  For general information and support, go to the Intel support
+	  website at:
+
+	  <http://support.intel.com>
+
+	  More specific information on configuring the driver is in
+	  <file:Documentation/networking/ixgbe.txt>.
+
+	  To compile this driver as a module, choose M here and read
+	  <file:Documentation/networking/net-modules.txt>.  The module
+	  will be called ixgbe.
+
 config IXGB
 	tristate "Intel(R) PRO/10GbE support"
 	depends on PCI
 	---help---
-	  This driver supports Intel(R) PRO/10GbE family of
-	  adapters.  For more information on how to identify your adapter, go
+	  This driver supports Intel(R) PRO/10GbE family of adapters for
+	  PCI-X type cards. For PCI-E type cards, use the "ixgbe" driver
+	  instead. For more information on how to identify your adapter, go
 	  to the Adapter & Driver ID Guide at:
 
 	  <http://support.intel.com/support/network/adapter/pro100/21397.htm>

drivers/net/Makefile

@@ -5,6 +5,7 @@
 obj-$(CONFIG_E1000) += e1000/
 obj-$(CONFIG_E1000E) += e1000e/
 obj-$(CONFIG_IBM_EMAC) += ibm_emac/
+obj-$(CONFIG_IXGBE) += ixgbe/
 obj-$(CONFIG_IXGB) += ixgb/
 obj-$(CONFIG_CHELSIO_T1) += chelsio/
 obj-$(CONFIG_CHELSIO_T3) += cxgb3/

drivers/net/ixgbe/Makefile

+################################################################################
+#
+# Intel 10 Gigabit PCI Express Linux driver
+# Copyright(c) 1999 - 2007 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,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# Linux NICS <linux.nics@intel.com>
+# e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+# Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+#
+################################################################################
+
+#
+# Makefile for the Intel(R) 10GbE PCI Express ethernet driver
+#
+
+obj-$(CONFIG_IXGBE) += ixgbe.o
+
+ixgbe-objs := ixgbe_main.o ixgbe_common.o ixgbe_ethtool.o \
+              ixgbe_82598.o ixgbe_phy.o

drivers/net/ixgbe/ixgbe.h

+/*******************************************************************************
+
+  Intel 10 Gigabit PCI Express Linux driver
+  Copyright(c) 1999 - 2007 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,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _IXGBE_H_
+#define _IXGBE_H_
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+
+#include "ixgbe_type.h"
+#include "ixgbe_common.h"
+
+
+#define IXGBE_ERR(args...) printk(KERN_ERR "ixgbe: " args)
+
+#define PFX "ixgbe: "
+#define DPRINTK(nlevel, klevel, fmt, args...) \
+	((void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \
+	printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \
+		__FUNCTION__ , ## args)))
+
+/* TX/RX descriptor defines */
+#define IXGBE_DEFAULT_TXD		   1024
+#define IXGBE_MAX_TXD			   4096
+#define IXGBE_MIN_TXD			     64
+
+#define IXGBE_DEFAULT_RXD		   1024
+#define IXGBE_MAX_RXD			   4096
+#define IXGBE_MIN_RXD			     64
+
+#define IXGBE_DEFAULT_RXQ			   1
+#define IXGBE_MAX_RXQ				   1
+#define IXGBE_MIN_RXQ				   1
+
+#define IXGBE_DEFAULT_ITR_RX_USECS	    125  /*   8k irqs/sec */
+#define IXGBE_DEFAULT_ITR_TX_USECS	    250  /*   4k irqs/sec */
+#define IXGBE_MIN_ITR_USECS		    100  /* 500k irqs/sec */
+#define IXGBE_MAX_ITR_USECS		  10000  /* 100  irqs/sec */
+
+/* flow control */
+#define IXGBE_DEFAULT_FCRTL		0x10000
+#define IXGBE_MIN_FCRTL			      0
+#define IXGBE_MAX_FCRTL			0x7FF80
+#define IXGBE_DEFAULT_FCRTH		0x20000
+#define IXGBE_MIN_FCRTH			      0
+#define IXGBE_MAX_FCRTH			0x7FFF0
+#define IXGBE_DEFAULT_FCPAUSE		 0x6800  /* may be too long */
+#define IXGBE_MIN_FCPAUSE		      0
+#define IXGBE_MAX_FCPAUSE		 0xFFFF
+
+/* Supported Rx Buffer Sizes */
+#define IXGBE_RXBUFFER_64    64     /* Used for packet split */
+#define IXGBE_RXBUFFER_128   128    /* Used for packet split */
+#define IXGBE_RXBUFFER_256   256    /* Used for packet split */
+#define IXGBE_RXBUFFER_2048  2048
+
+#define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
+
+#define MAXIMUM_ETHERNET_VLAN_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
+
+/* How many Tx Descriptors do we need to call netif_wake_queue? */
+#define IXGBE_TX_QUEUE_WAKE 16
+
+/* How many Rx Buffers do we bundle into one write to the hardware ? */
+#define IXGBE_RX_BUFFER_WRITE	16	/* Must be power of 2 */
+
+#define IXGBE_TX_FLAGS_CSUM		(u32)(1)
+#define IXGBE_TX_FLAGS_VLAN		(u32)(1 << 1)
+#define IXGBE_TX_FLAGS_TSO		(u32)(1 << 2)
+#define IXGBE_TX_FLAGS_IPV4		(u32)(1 << 3)
+#define IXGBE_TX_FLAGS_VLAN_MASK	0xffff0000
+#define IXGBE_TX_FLAGS_VLAN_SHIFT	16
+
+/* wrapper around a pointer to a socket buffer,
+ * so a DMA handle can be stored along with the buffer */
+struct ixgbe_tx_buffer {
+	struct sk_buff *skb;
+	dma_addr_t dma;
+	unsigned long time_stamp;
+	u16 length;
+	u16 next_to_watch;
+};
+
+struct ixgbe_rx_buffer {
+	struct sk_buff *skb;
+	dma_addr_t dma;
+	struct page *page;
+	dma_addr_t page_dma;
+};
+
+struct ixgbe_queue_stats {
+	u64 packets;
+	u64 bytes;
+};
+
+struct ixgbe_ring {
+	struct ixgbe_adapter *adapter;	/* backlink */
+	void *desc;			/* descriptor ring memory */
+	dma_addr_t dma;			/* phys. address of descriptor ring */
+	unsigned int size;		/* length in bytes */
+	unsigned int count;		/* amount of descriptors */
+	unsigned int next_to_use;
+	unsigned int next_to_clean;
+
+	union {
+		struct ixgbe_tx_buffer *tx_buffer_info;
+		struct ixgbe_rx_buffer *rx_buffer_info;
+	};
+
+	u16 head;
+	u16 tail;
+
+	/* To protect race between sender and clean_tx_irq */
+	spinlock_t tx_lock;
+
+	struct ixgbe_queue_stats stats;
+
+	u32 eims_value;
+	u16 itr_register;
+
+	char name[IFNAMSIZ + 5];
+	u16 work_limit;                /* max work per interrupt */
+};
+
+/* Helper macros to switch between ints/sec and what the register uses.
+ * And yes, it's the same math going both ways.
+ */
+#define EITR_INTS_PER_SEC_TO_REG(_eitr) \
+	((_eitr) ? (1000000000 / ((_eitr) * 256)) : 0)
+#define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
+
+#define IXGBE_DESC_UNUSED(R) \
+	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
+	(R)->next_to_clean - (R)->next_to_use - 1)
+
+#define IXGBE_RX_DESC_ADV(R, i)	    \
+	(&(((union ixgbe_adv_rx_desc *)((R).desc))[i]))
+#define IXGBE_TX_DESC_ADV(R, i)	    \
+	(&(((union ixgbe_adv_tx_desc *)((R).desc))[i]))
+#define IXGBE_TX_CTXTDESC_ADV(R, i)	    \
+	(&(((struct ixgbe_adv_tx_context_desc *)((R).desc))[i]))
+
+#define IXGBE_MAX_JUMBO_FRAME_SIZE        16128
+
+/* board specific private data structure */
+struct ixgbe_adapter {
+	struct timer_list watchdog_timer;
+	struct vlan_group *vlgrp;
+	u16 bd_number;
+	u16 rx_buf_len;
+	atomic_t irq_sem;
+	struct work_struct reset_task;
+
+	/* TX */
+	struct ixgbe_ring *tx_ring;	/* One per active queue */
+	struct napi_struct napi;
+	u64 restart_queue;
+	u64 lsc_int;
+	u64 hw_tso_ctxt;
+	u64 hw_tso6_ctxt;
+	u32 tx_timeout_count;
+	bool detect_tx_hung;
+
+	/* RX */
+	struct ixgbe_ring *rx_ring;	/* One per active queue */
+	u64 hw_csum_tx_good;
+	u64 hw_csum_rx_error;
+	u64 hw_csum_rx_good;
+	u64 non_eop_descs;
+	int num_tx_queues;
+	int num_rx_queues;
+	struct msix_entry *msix_entries;
+
+	u64 rx_hdr_split;
+	u32 alloc_rx_page_failed;
+	u32 alloc_rx_buff_failed;
+
+	u32 flags;
+#define IXGBE_FLAG_RX_CSUM_ENABLED              (u32)(1)
+#define IXGBE_FLAG_MSI_ENABLED                  (u32)(1 << 1)
+#define IXGBE_FLAG_MSIX_ENABLED			(u32)(1 << 2)
+#define IXGBE_FLAG_RX_PS_ENABLED		(u32)(1 << 3)
+#define IXGBE_FLAG_IN_NETPOLL			(u32)(1 << 4)
+
+	/* Interrupt Throttle Rate */
+	u32 rx_eitr;
+	u32 tx_eitr;
+
+	/* OS defined structs */
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+	struct net_device_stats net_stats;
+
+	/* structs defined in ixgbe_hw.h */
+	struct ixgbe_hw hw;
+	u16 msg_enable;
+	struct ixgbe_hw_stats stats;
+	char lsc_name[IFNAMSIZ + 5];
+
+	unsigned long state;
+	u64 tx_busy;
+};
+
+enum ixbge_state_t {
+	__IXGBE_TESTING,
+	__IXGBE_RESETTING,
+	__IXGBE_DOWN
+};
+
+enum ixgbe_boards {
+	board_82598AF,
+	board_82598EB,
+	board_82598AT,
+};
+
+extern struct ixgbe_info ixgbe_82598AF_info;
+extern struct ixgbe_info ixgbe_82598EB_info;
+extern struct ixgbe_info ixgbe_82598AT_info;
+
+extern char ixgbe_driver_name[];
+extern char ixgbe_driver_version[];
+
+extern int ixgbe_up(struct ixgbe_adapter *adapter);
+extern void ixgbe_down(struct ixgbe_adapter *adapter);
+extern void ixgbe_reset(struct ixgbe_adapter *adapter);
+extern void ixgbe_update_stats(struct ixgbe_adapter *adapter);
+extern void ixgbe_set_ethtool_ops(struct net_device *netdev);
+extern int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter,
+				    struct ixgbe_ring *rxdr);
+extern int ixgbe_setup_tx_resources(struct ixgbe_adapter *adapter,
+				    struct ixgbe_ring *txdr);
+
+#endif /* _IXGBE_H_ */

drivers/net/ixgbe/ixgbe_82598.c

+/*******************************************************************************
+
+  Intel 10 Gigabit PCI Express Linux driver
+  Copyright(c) 1999 - 2007 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,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+
+#include "ixgbe_type.h"
+#include "ixgbe_common.h"
+#include "ixgbe_phy.h"
+
+#define IXGBE_82598_MAX_TX_QUEUES 32
+#define IXGBE_82598_MAX_RX_QUEUES 64
+#define IXGBE_82598_RAR_ENTRIES   16
+
+static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw);
+static s32 ixgbe_get_link_settings_82598(struct ixgbe_hw *hw, u32 *speed,
+					 bool *autoneg);
+static s32 ixgbe_get_copper_link_settings_82598(struct ixgbe_hw *hw,
+						u32 *speed, bool *autoneg);
+static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw);
+static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw);
+static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw, u32 *speed,
+				      bool *link_up);
+static s32 ixgbe_setup_mac_link_speed_82598(struct ixgbe_hw *hw, u32 speed,
+					    bool autoneg,
+					    bool autoneg_wait_to_complete);
+static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw);
+static s32 ixgbe_check_copper_link_82598(struct ixgbe_hw *hw, u32 *speed,
+					 bool *link_up);
+static s32 ixgbe_setup_copper_link_speed_82598(struct ixgbe_hw *hw, u32 speed,
+					       bool autoneg,
+					       bool autoneg_wait_to_complete);
+static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw);
+
+
+static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
+{
+	hw->mac.num_rx_queues = IXGBE_82598_MAX_TX_QUEUES;
+	hw->mac.num_tx_queues = IXGBE_82598_MAX_RX_QUEUES;
+	hw->mac.num_rx_addrs = IXGBE_82598_RAR_ENTRIES;
+
+	return 0;
+}
+
+/**
+ *  ixgbe_get_link_settings_82598 - Determines default link settings
+ *  @hw: pointer to hardware structure
+ *  @speed: pointer to link speed
+ *  @autoneg: boolean auto-negotiation value
+ *
+ *  Determines the default link settings by reading the AUTOC register.
+ **/
+static s32 ixgbe_get_link_settings_82598(struct ixgbe_hw *hw, u32 *speed,
+					 bool *autoneg)
+{
+	s32 status = 0;
+	s32 autoc_reg;
+
+	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+
+	if (hw->mac.link_settings_loaded) {
+		autoc_reg &= ~IXGBE_AUTOC_LMS_ATTACH_TYPE;
+		autoc_reg &= ~IXGBE_AUTOC_LMS_MASK;
+		autoc_reg |= hw->mac.link_attach_type;
+		autoc_reg |= hw->mac.link_mode_select;
+	}
+
+	switch (autoc_reg & IXGBE_AUTOC_LMS_MASK) {
+	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
+		*speed = IXGBE_LINK_SPEED_1GB_FULL;
+		*autoneg = false;
+		break;
+
+	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
+		*speed = IXGBE_LINK_SPEED_10GB_FULL;
+		*autoneg = false;
+		break;
+
+	case IXGBE_AUTOC_LMS_1G_AN:
+		*speed = IXGBE_LINK_SPEED_1GB_FULL;
+		*autoneg = true;
+		break;
+
+	case IXGBE_AUTOC_LMS_KX4_AN:
+	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
+		*speed = IXGBE_LINK_SPEED_UNKNOWN;
+		if (autoc_reg & IXGBE_AUTOC_KX4_SUPP)
+			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
+		if (autoc_reg & IXGBE_AUTOC_KX_SUPP)
+			*speed |= IXGBE_LINK_SPEED_1GB_FULL;
+		*autoneg = true;
+		break;
+
+	default:
+		status = IXGBE_ERR_LINK_SETUP;
+		break;
+	}
+
+	return status;
+}
+
+/**
+ *  ixgbe_get_copper_link_settings_82598 - Determines default link settings
+ *  @hw: pointer to hardware structure
+ *  @speed: pointer to link speed
+ *  @autoneg: boolean auto-negotiation value
+ *
+ *  Determines the default link settings by reading the AUTOC register.
+ **/
+static s32 ixgbe_get_copper_link_settings_82598(struct ixgbe_hw *hw,
+						u32 *speed, bool *autoneg)
+{
+	s32 status = IXGBE_ERR_LINK_SETUP;
+	u16 speed_ability;
+
+	*speed = 0;
+	*autoneg = true;
+
+	status = ixgbe_read_phy_reg(hw, IXGBE_MDIO_PHY_SPEED_ABILITY,
+				    IXGBE_MDIO_PMA_PMD_DEV_TYPE,
+				    &speed_ability);
+
+	if (status == 0) {
+		if (speed_ability & IXGBE_MDIO_PHY_SPEED_10G)
+		    *speed |= IXGBE_LINK_SPEED_10GB_FULL;
+		if (speed_ability & IXGBE_MDIO_PHY_SPEED_1G)
+		    *speed |= IXGBE_LINK_SPEED_1GB_FULL;
+	}
+
+	return status;
+}
+
+/**
+ *  ixgbe_get_media_type_82598 - Determines media type
+ *  @hw: pointer to hardware structure
+ *
+ *  Returns the media type (fiber, copper, backplane)
+ **/
+static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
+{
+	enum ixgbe_media_type media_type;
+
+	/* Media type for I82598 is based on device ID */
+	switch (hw->device_id) {
+	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
+	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
+	case IXGBE_DEV_ID_82598EB_CX4:
+		media_type = ixgbe_media_type_fiber;
+		break;
+	case IXGBE_DEV_ID_82598AT_DUAL_PORT:
+		media_type = ixgbe_media_type_copper;
+		break;
+	default:
+		media_type = ixgbe_media_type_unknown;
+		break;
+	}
+
+	return media_type;
+}
+
+/**
+ *  ixgbe_setup_mac_link_82598 - Configures MAC link settings
+ *  @hw: pointer to hardware structure
+ *
+ *  Configures link settings based on values in the ixgbe_hw struct.
+ *  Restarts the link.  Performs autonegotiation if needed.
+ **/
+static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw)
+{
+	u32 autoc_reg;
+	u32 links_reg;
+	u32 i;
+	s32 status = 0;
+
+	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+
+	if (hw->mac.link_settings_loaded) {
+		autoc_reg &= ~IXGBE_AUTOC_LMS_ATTACH_TYPE;
+		autoc_reg &= ~IXGBE_AUTOC_LMS_MASK;
+		autoc_reg |= hw->mac.link_attach_type;
+		autoc_reg |= hw->mac.link_mode_select;
+
+		IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
+		msleep(50);
+	}
+
+	/* Restart link */
+	autoc_reg |= IXGBE_AUTOC_AN_RESTART;
+	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
+
+	/* Only poll for autoneg to complete if specified to do so */
+	if (hw->phy.autoneg_wait_to_complete) {
+		if (hw->mac.link_mode_select == IXGBE_AUTOC_LMS_KX4_AN ||
+		    hw->mac.link_mode_select == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
+			links_reg = 0; /* Just in case Autoneg time = 0 */
+			for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
+				links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
+				if (links_reg & IXGBE_LINKS_KX_AN_COMP)
+					break;
+				msleep(100);
+			}
+			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
+				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
+				hw_dbg(hw,
+				       "Autonegotiation did not complete.\n");
+			}
+		}
+	}
+
+	/*
+	 * We want to save off the original Flow Control configuration just in
+	 * case we get disconnected and then reconnected into a different hub
+	 * or switch with different Flow Control capabilities.
+	 */
+	hw->fc.type = hw->fc.original_type;
+	ixgbe_setup_fc(hw, 0);
+
+	/* Add delay to filter out noises during initial link setup */
+	msleep(50);
+
+	return status;
+}
+
+/**
+ *  ixgbe_check_mac_link_82598 - Get link/speed status
+ *  @hw: pointer to hardware structure
+ *  @speed: pointer to link speed
+ *  @link_up: true is link is up, false otherwise
+ *
+ *  Reads the links register to determine if link is up and the current speed
+ **/
+static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw, u32 *speed,
+				      bool *link_up)
+{
+	u32 links_reg;
+
+	links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
+
+	if (links_reg & IXGBE_LINKS_UP)
+		*link_up = true;
+	else
+		*link_up = false;
+
+	if (links_reg & IXGBE_LINKS_SPEED)
+		*speed = IXGBE_LINK_SPEED_10GB_FULL;
+	else
+		*speed = IXGBE_LINK_SPEED_1GB_FULL;
+
+	return 0;
+}
+
+/**
+ *  ixgbe_setup_mac_link_speed_82598 - Set MAC link speed
+ *  @hw: pointer to hardware structure
+ *  @speed: new link speed
+ *  @autoneg: true if auto-negotiation enabled
+ *  @autoneg_wait_to_complete: true if waiting is needed to complete
+ *
+ *  Set the link speed in the AUTOC register and restarts link.
+ **/
+static s32 ixgbe_setup_mac_link_speed_82598(struct ixgbe_hw *hw,
+					    u32 speed, bool autoneg,
+					    bool autoneg_wait_to_complete)
+{
+	s32 status = 0;
+
+	/* If speed is 10G, then check for CX4 or XAUI. */
+	if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
+	    (!(hw->mac.link_attach_type & IXGBE_AUTOC_10G_KX4)))
+		hw->mac.link_mode_select = IXGBE_AUTOC_LMS_10G_LINK_NO_AN;
+	else if ((speed == IXGBE_LINK_SPEED_1GB_FULL) && (!autoneg))
+		hw->mac.link_mode_select = IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
+	else if (autoneg) {
+		/* BX mode - Autonegotiate 1G */
+		if (!(hw->mac.link_attach_type & IXGBE_AUTOC_1G_PMA_PMD))
+			hw->mac.link_mode_select = IXGBE_AUTOC_LMS_1G_AN;
+		else /* KX/KX4 mode */
+			hw->mac.link_mode_select = IXGBE_AUTOC_LMS_KX4_AN_1G_AN;
+	} else {
+		status = IXGBE_ERR_LINK_SETUP;
+	}
+
+	if (status == 0) {
+		hw->phy.autoneg_wait_to_complete = autoneg_wait_to_complete;
+
+		hw->mac.link_settings_loaded = true;
+		/*
+		 * Setup and restart the link based on the new values in
+		 * ixgbe_hw This will write the AUTOC register based on the new
+		 * stored values
+		 */
+		hw->phy.ops.setup(hw);
+	}
+
+	return status;
+}
+
+
+/**
+ *  ixgbe_setup_copper_link_82598 - Setup copper link settings
+ *  @hw: pointer to hardware structure
+ *
+ *  Configures link settings based on values in the ixgbe_hw struct.
+ *  Restarts the link.  Performs autonegotiation if needed.  Restart
+ *  phy and wait for autonegotiate to finish.  Then synchronize the
+ *  MAC and PHY.
+ **/
+static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw)
+{
+	s32 status;
+	u32 speed = 0;
+	bool link_up = false;
+
+	/* Set up MAC */
+	hw->phy.ops.setup(hw);
+
+	/* Restart autonegotiation on PHY */
+	status = hw->phy.ops.setup(hw);
+
+	/* Synchronize MAC to PHY speed */
+	if (status == 0)
+		status = hw->phy.ops.check(hw, &speed, &link_up);
+
+	return status;
+}
+
+/**
+ *  ixgbe_check_copper_link_82598 - Syncs MAC & PHY link settings
+ *  @hw: pointer to hardware structure
+ *  @speed: pointer to link speed
+ *  @link_up: true if link is up, false otherwise
+ *
+ *  Reads the mac link, phy link, and synchronizes the MAC to PHY.
+ **/
+static s32 ixgbe_check_copper_link_82598(struct ixgbe_hw *hw, u32 *speed,
+					 bool *link_up)
+{
+	s32 status;
+	u32 phy_speed = 0;
+	bool phy_link = false;
+
+	/* This is the speed and link the MAC is set at */
+	hw->phy.ops.check(hw, speed, link_up);
+
+	/*
+	 * Check current speed and link status of the PHY register.
+	 * This is a vendor specific register and may have to
+	 * be changed for other copper PHYs.
+	 */
+	status = hw->phy.ops.check(hw, &phy_speed, &phy_link);
+
+	if ((status == 0) && (phy_link)) {
+		/*
+		 * Check current link status of the MACs link's register
+		 * matches that of the speed in the PHY register
+		 */
+		if (*speed != phy_speed) {
+			/*
+			 * The copper PHY requires 82598 attach type to be XAUI
+			 * for 10G and BX for 1G
+			 */
+			hw->mac.link_attach_type =
+				(IXGBE_AUTOC_10G_XAUI | IXGBE_AUTOC_1G_BX);
+
+			/* Synchronize the MAC speed to the PHY speed */
+			status = hw->phy.ops.setup_speed(hw, phy_speed, false,
+							  false);
+			if (status == 0)
+				hw->phy.ops.check(hw, speed, link_up);
+			else
+				status = IXGBE_ERR_LINK_SETUP;
+		}
+	} else {
+		*link_up = phy_link;
+	}
+
+	return status;
+}
+
+/**
+ *  ixgbe_setup_copper_link_speed_82598 - Set the PHY autoneg advertised field
+ *  @hw: pointer to hardware structure
+ *  @speed: new link speed
+ *  @autoneg: true if autonegotiation enabled
+ *  @autoneg_wait_to_complete: true if waiting is needed to complete
+ *
+ *  Sets the link speed in the AUTOC register in the MAC and restarts link.
+ **/
+static s32 ixgbe_setup_copper_link_speed_82598(struct ixgbe_hw *hw, u32 speed,
+					       bool autoneg,
+					       bool autoneg_wait_to_complete)
+{
+	s32 status;
+	bool link_up = 0;
+
+	/* Setup the PHY according to input speed */
+	status = hw->phy.ops.setup_speed(hw, speed, autoneg,
+					  autoneg_wait_to_complete);
+
+	/* Synchronize MAC to PHY speed */
+	if (status == 0)
+		status = hw->phy.ops.check(hw, &speed, &link_up);
+
+	return status;
+}
+
+/**
+ *  ixgbe_reset_hw_82598 - Performs hardware reset
+ *  @hw: pointer to hardware structure
+ *
+ *  Resets the hardware by reseting the transmit and receive units, masks and
+ *  clears all interrupts, performing a PHY reset, and performing a link (MAC)
+ *  reset.
+ **/
+static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
+{
+	s32 status = 0;
+	u32 ctrl;
+	u32 gheccr;
+	u32 i;
+	u32 autoc;
+	u8  analog_val;
+
+	/* Call adapter stop to disable tx/rx and clear interrupts */
+	ixgbe_stop_adapter(hw);
+
+	/*
+	 * Power up the Atlas TX lanes if they are currently powered down.
+	 * Atlas TX lanes are powered down for MAC loopback tests, but
+	 * they are not automatically restored on reset.
+	 */
+	ixgbe_read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
+	if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
+		/* Enable TX Atlas so packets can be transmitted again */
+		ixgbe_read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
+		analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
+		ixgbe_write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, analog_val);
+
+		ixgbe_read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, &analog_val);
+		analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
+		ixgbe_write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, analog_val);
+
+		ixgbe_read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, &analog_val);
+		analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
+		ixgbe_write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, analog_val);
+
+		ixgbe_read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, &analog_val);
+		analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
+		ixgbe_write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, analog_val);
+	}
+
+	/* Reset PHY */
+	ixgbe_reset_phy(hw);
+
+	/*
+	 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
+	 * access and verify no pending requests before reset
+	 */
+	if (ixgbe_disable_pcie_master(hw) != 0) {
+		status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
+		hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
+	}
+
+	/*
+	 * Issue global reset to the MAC.  This needs to be a SW reset.
+	 * If link reset is used, it might reset the MAC when mng is using it
+	 */
+	ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
+	IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
+	IXGBE_WRITE_FLUSH(hw);
+
+	/* Poll for reset bit to self-clear indicating reset is complete */
+	for (i = 0; i < 10; i++) {
+		udelay(1);
+		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
+		if (!(ctrl & IXGBE_CTRL_RST))
+			break;
+	}
+	if (ctrl & IXGBE_CTRL_RST) {
+		status = IXGBE_ERR_RESET_FAILED;
+		hw_dbg(hw, "Reset polling failed to complete.\n");
+	}
+
+	msleep(50);
+
+	gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
+	gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
+	IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
+
+	/*
+	 * AUTOC register which stores link settings gets cleared
+	 * and reloaded from EEPROM after reset. We need to restore
+	 * our stored value from init in case SW changed the attach
+	 * type or speed.  If this is the first time and link settings
+	 * have not been stored, store default settings from AUTOC.
+	 */
+	autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+	if (hw->mac.link_settings_loaded) {
+		autoc &= ~(IXGBE_AUTOC_LMS_ATTACH_TYPE);
+		autoc &= ~(IXGBE_AUTOC_LMS_MASK);
+		autoc |= hw->mac.link_attach_type;
+		autoc |= hw->mac.link_mode_select;
+		IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
+	} else {
+		hw->mac.link_attach_type =
+					 (autoc & IXGBE_AUTOC_LMS_ATTACH_TYPE);
+		hw->mac.link_mode_select = (autoc & IXGBE_AUTOC_LMS_MASK);
+		hw->mac.link_settings_loaded = true;
+	}
+
+	/* Store the permanent mac address */
+	ixgbe_get_mac_addr(hw, hw->mac.perm_addr);
+
+	return status;
+}
+
+static struct ixgbe_mac_operations mac_ops_82598 = {
+	.reset			= &ixgbe_reset_hw_82598,
+	.get_media_type		= &ixgbe_get_media_type_82598,
+};
+
+static struct ixgbe_phy_operations phy_ops_82598EB = {
+	.setup			= &ixgbe_setup_copper_link_82598,
+	.check			= &ixgbe_check_copper_link_82598,
+	.setup_speed		= &ixgbe_setup_copper_link_speed_82598,
+	.get_settings		= &ixgbe_get_copper_link_settings_82598,
+};
+
+struct ixgbe_info ixgbe_82598EB_info = {
+	.mac			= ixgbe_mac_82598EB,
+	.get_invariants		= &ixgbe_get_invariants_82598,
+	.mac_ops		= &mac_ops_82598,
+	.phy_ops		= &phy_ops_82598EB,
+};
+
+static struct ixgbe_phy_operations phy_ops_82598AT = {
+	.setup			= &ixgbe_setup_tnx_phy_link,
+	.check			= &ixgbe_check_tnx_phy_link,
+	.setup_speed		= &ixgbe_setup_tnx_phy_link_speed,
+	.get_settings		= &ixgbe_get_copper_link_settings_82598,
+};
+
+struct ixgbe_info ixgbe_82598AT_info = {
+	.mac			= ixgbe_mac_82598EB,
+	.get_invariants		= &ixgbe_get_invariants_82598,
+	.mac_ops		= &mac_ops_82598,
+	.phy_ops		= &phy_ops_82598AT,
+};
+
+static struct ixgbe_phy_operations phy_ops_82598AF = {
+	.setup			= &ixgbe_setup_mac_link_82598,
+	.check			= &ixgbe_check_mac_link_82598,
+	.setup_speed		= &ixgbe_setup_mac_link_speed_82598,
+	.get_settings		= &ixgbe_get_link_settings_82598,
+};
+
+struct ixgbe_info ixgbe_82598AF_info = {
+	.mac			= ixgbe_mac_82598EB,
+	.get_invariants		= &ixgbe_get_invariants_82598,
+	.mac_ops		= &mac_ops_82598,
+	.phy_ops		= &phy_ops_82598AF,
+};
+

drivers/net/ixgbe/ixgbe_common.h

+/*******************************************************************************
+
+  Intel 10 Gigabit PCI Express Linux driver
+  Copyright(c) 1999 - 2007 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,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _IXGBE_COMMON_H_
+#define _IXGBE_COMMON_H_
+
+#include "ixgbe_type.h"
+
+s32 ixgbe_init_hw(struct ixgbe_hw *hw);
+s32 ixgbe_start_hw(struct ixgbe_hw *hw);
+s32 ixgbe_get_mac_addr(struct ixgbe_hw *hw, u8 *mac_addr);
+s32 ixgbe_stop_adapter(struct ixgbe_hw *hw);
+s32 ixgbe_read_part_num(struct ixgbe_hw *hw, u32 *part_num);
+
+s32 ixgbe_led_on(struct ixgbe_hw *hw, u32 index);
+s32 ixgbe_led_off(struct ixgbe_hw *hw, u32 index);
+
+s32 ixgbe_init_eeprom(struct ixgbe_hw *hw);
+s32 ixgbe_read_eeprom(struct ixgbe_hw *hw, u16 offset, u16 *data);
+s32 ixgbe_validate_eeprom_checksum(struct ixgbe_hw *hw, u16 *checksum_val);
+
+s32 ixgbe_set_rar(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vind,
+		  u32 enable_addr);
+s32 ixgbe_update_mc_addr_list(struct ixgbe_hw *hw, u8 *mc_addr_list,
+			      u32 mc_addr_count, u32 pad);
+s32 ixgbe_set_vfta(struct ixgbe_hw *hw, u32 vlan, u32 vind, bool vlan_on);
+s32 ixgbe_validate_mac_addr(u8 *mac_addr);
+
+s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packtetbuf_num);
+
+s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask);
+void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u16 mask);
+s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw);
+
+s32 ixgbe_read_analog_reg8(struct ixgbe_hw *hw, u32 reg, u8 *val);
+s32 ixgbe_write_analog_reg8(struct ixgbe_hw *hw, u32 reg, u8 val);
+
+#define IXGBE_WRITE_REG(a, reg, value) writel((value), ((a)->hw_addr + (reg)))
+
+#define IXGBE_READ_REG(a, reg) readl((a)->hw_addr + (reg))
+
+#define IXGBE_WRITE_REG_ARRAY(a, reg, offset, value) (\
+    writel((value), ((a)->hw_addr + (reg) + ((offset) << 2))))
+
+#define IXGBE_READ_REG_ARRAY(a, reg, offset) (\
+    readl((a)->hw_addr + (reg) + ((offset) << 2)))
+
+#define IXGBE_WRITE_FLUSH(a) IXGBE_READ_REG(a, IXGBE_STATUS)
+
+#ifdef DEBUG
+#define hw_dbg(hw, format, arg...) \
+printk(KERN_DEBUG, "%s: " format, ixgbe_get_hw_dev_name(hw), ##arg);
+#else
+static inline int __attribute__ ((format (printf, 2, 3)))
+hw_dbg(struct ixgbe_hw *hw, const char *format, ...)
+{
+	return 0;
+}
+#endif
+
+#endif /* IXGBE_COMMON */

drivers/net/ixgbe/ixgbe_phy.c

+/*******************************************************************************
+
+  Intel 10 Gigabit PCI Express Linux driver
+  Copyright(c) 1999 - 2007 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,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+
+#include "ixgbe_common.h"
+#include "ixgbe_phy.h"
+
+static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id);
+static s32 ixgbe_get_phy_id(struct ixgbe_hw *hw);
+static bool ixgbe_validate_phy_addr(struct ixgbe_hw *hw, u32 phy_addr);
+static s32 ixgbe_write_phy_reg(struct ixgbe_hw *hw, u32 reg_addr,
+			       u32 device_type, u16 phy_data);
+
+/**
+ *  ixgbe_identify_phy - Get physical layer module
+ *  @hw: pointer to hardware structure
+ *
+ *  Determines the physical layer module found on the current adapter.
+ **/
+s32 ixgbe_identify_phy(struct ixgbe_hw *hw)
+{
+	s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
+	u32 phy_addr;
+
+	for (phy_addr = 0; phy_addr < IXGBE_MAX_PHY_ADDR; phy_addr++) {
+		if (ixgbe_validate_phy_addr(hw, phy_addr)) {
+			hw->phy.addr = phy_addr;
+			ixgbe_get_phy_id(hw);
+			hw->phy.type = ixgbe_get_phy_type_from_id(hw->phy.id);
+			status = 0;
+			break;
+		}
+	}
+	return status;
+}
+
+/**
+ *  ixgbe_validate_phy_addr - Determines phy address is valid
+ *  @hw: pointer to hardware structure
+ *
+ **/
+static bool ixgbe_validate_phy_addr(struct ixgbe_hw *hw, u32 phy_addr)
+{
+	u16 phy_id = 0;
+	bool valid = false;
+
+	hw->phy.addr = phy_addr;
+	ixgbe_read_phy_reg(hw,
+			   IXGBE_MDIO_PHY_ID_HIGH,
+			   IXGBE_MDIO_PMA_PMD_DEV_TYPE,
+			   &phy_id);
+
+	if (phy_id != 0xFFFF && phy_id != 0x0)
+		valid = true;
+
+	return valid;
+}
+
+/**
+ *  ixgbe_get_phy_id - Get the phy type
+ *  @hw: pointer to hardware structure
+ *
+ **/
+static s32 ixgbe_get_phy_id(struct ixgbe_hw *hw)
+{
+	u32 status;
+	u16 phy_id_high = 0;
+	u16 phy_id_low = 0;
+
+	status = ixgbe_read_phy_reg(hw,
+				   IXGBE_MDIO_PHY_ID_HIGH,
+				   IXGBE_MDIO_PMA_PMD_DEV_TYPE,
+				   &phy_id_high);
+
+	if (status == 0) {
+		hw->phy.id = (u32)(phy_id_high << 16);
+		status = ixgbe_read_phy_reg(hw,
+					   IXGBE_MDIO_PHY_ID_LOW,
+					   IXGBE_MDIO_PMA_PMD_DEV_TYPE,
+					   &phy_id_low);
+		hw->phy.id |= (u32)(phy_id_low & IXGBE_PHY_REVISION_MASK);
+		hw->phy.revision = (u32)(phy_id_low & ~IXGBE_PHY_REVISION_MASK);
+	}
+
+	return status;
+}
+
+/**
+ *  ixgbe_get_phy_type_from_id - Get the phy type
+ *  @hw: pointer to hardware structure
+ *
+ **/
+static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
+{
+	enum ixgbe_phy_type phy_type;
+
+	switch (phy_id) {
+	case TN1010_PHY_ID:
+		phy_type = ixgbe_phy_tn;
+		break;
+	case QT2022_PHY_ID:
+		phy_type = ixgbe_phy_qt;
+		break;
+	default:
+		phy_type = ixgbe_phy_unknown;
+		break;
+	}
+
+	return phy_type;
+}
+
+/**
+ *  ixgbe_reset_phy - Performs a PHY reset
+ *  @hw: pointer to hardware structure
+ **/
+s32 ixgbe_reset_phy(struct ixgbe_hw *hw)
+{
+	/*
+	 * Perform soft PHY reset to the PHY_XS.
+	 * This will cause a soft reset to the PHY
+	 */
+	return ixgbe_write_phy_reg(hw, IXGBE_MDIO_PHY_XS_CONTROL,
+				   IXGBE_MDIO_PHY_XS_DEV_TYPE,
+				   IXGBE_MDIO_PHY_XS_RESET);
+}
+
+/**
+ *  ixgbe_read_phy_reg - Reads a value from a specified PHY register
+ *  @hw: pointer to hardware structure
+ *  @reg_addr: 32 bit address of PHY register to read
+ *  @phy_data: Pointer to read data from PHY register
+ **/
+s32 ixgbe_read_phy_reg(struct ixgbe_hw *hw, u32 reg_addr,
+		       u32 device_type, u16 *phy_data)
+{
+	u32 command;
+	u32 i;
+	u32 timeout = 10;
+	u32 data;
+	s32 status = 0;
+	u16 gssr;
+
+	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
+		gssr = IXGBE_GSSR_PHY1_SM;
+	else
+		gssr = IXGBE_GSSR_PHY0_SM;
+
+	if (ixgbe_acquire_swfw_sync(hw, gssr) != 0)
+		status = IXGBE_ERR_SWFW_SYNC;
+
+	if (status == 0) {
+		/* Setup and write the address cycle command */
+		command = ((reg_addr << IXGBE_MSCA_NP_ADDR_SHIFT)  |
+			   (device_type << IXGBE_MSCA_DEV_TYPE_SHIFT) |
+			   (hw->phy.addr << IXGBE_MSCA_PHY_ADDR_SHIFT) |
+			   (IXGBE_MSCA_ADDR_CYCLE | IXGBE_MSCA_MDI_COMMAND));
+
+		IXGBE_WRITE_REG(hw, IXGBE_MSCA, command);
+
+		/*
+		 * Check every 10 usec to see if the address cycle completed.
+		 * The MDI Command bit will clear when the operation is
+		 * complete
+		 */
+		for (i = 0; i < timeout; i++) {
+			udelay(10);
+
+			command = IXGBE_READ_REG(hw, IXGBE_MSCA);
+
+			if ((command & IXGBE_MSCA_MDI_COMMAND) == 0)
+				break;
+		}
+
+		if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
+			hw_dbg(hw, "PHY address command did not complete.\n");
+			status = IXGBE_ERR_PHY;
+		}
+
+		if (status == 0) {
+			/*
+			 * Address cycle complete, setup and write the read
+			 * command
+			 */
+			command = ((reg_addr << IXGBE_MSCA_NP_ADDR_SHIFT)  |
+				   (device_type << IXGBE_MSCA_DEV_TYPE_SHIFT) |
+				   (hw->phy.addr << IXGBE_MSCA_PHY_ADDR_SHIFT) |
+				   (IXGBE_MSCA_READ | IXGBE_MSCA_MDI_COMMAND));
+
+			IXGBE_WRITE_REG(hw, IXGBE_MSCA, command);
+
+			/*
+			 * Check every 10 usec to see if the address cycle
+			 * completed. The MDI Command bit will clear when the
+			 * operation is complete
+			 */
+			for (i = 0; i < timeout; i++) {
+				udelay(10);
+
+				command = IXGBE_READ_REG(hw, IXGBE_MSCA);
+
+				if ((command & IXGBE_MSCA_MDI_COMMAND) == 0)
+					break;
+			}
+
+			if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
+				hw_dbg(hw,
+				       "PHY read command didn't complete\n");
+				status = IXGBE_ERR_PHY;
+			} else {
+				/*
+				 * Read operation is complete.  Get the data
+				 * from MSRWD
+				 */
+				data = IXGBE_READ_REG(hw, IXGBE_MSRWD);
+				data >>= IXGBE_MSRWD_READ_DATA_SHIFT;
+				*phy_data = (u16)(data);
+			}
+		}
+
+		ixgbe_release_swfw_sync(hw, gssr);
+	}
+	return status;
+}
+
+/**
+ *  ixgbe_write_phy_reg - Writes a value to specified PHY register
+ *  @hw: pointer to hardware structure
+ *  @reg_addr: 32 bit PHY register to write
+ *  @device_type: 5 bit device type
+ *  @phy_data: Data to write to the PHY register
+ **/
+static s32 ixgbe_write_phy_reg(struct ixgbe_hw *hw, u32 reg_addr,
+			       u32 device_type, u16 phy_data)
+{
+	u32 command;
+	u32 i;
+	u32 timeout = 10;
+	s32 status = 0;
+	u16 gssr;
+
+	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
+		gssr = IXGBE_GSSR_PHY1_SM;
+	else
+		gssr = IXGBE_GSSR_PHY0_SM;
+
+	if (ixgbe_acquire_swfw_sync(hw, gssr) != 0)
+		status = IXGBE_ERR_SWFW_SYNC;
+
+	if (status == 0) {
+		/* Put the data in the MDI single read and write data register*/
+		IXGBE_WRITE_REG(hw, IXGBE_MSRWD, (u32)phy_data);
+
+		/* Setup and write the address cycle command */
+		command = ((reg_addr << IXGBE_MSCA_NP_ADDR_SHIFT)  |
+			   (device_type << IXGBE_MSCA_DEV_TYPE_SHIFT) |
+			   (hw->phy.addr << IXGBE_MSCA_PHY_ADDR_SHIFT) |
+			   (IXGBE_MSCA_ADDR_CYCLE | IXGBE_MSCA_MDI_COMMAND));
+
+		IXGBE_WRITE_REG(hw, IXGBE_MSCA, command);
+
+		/*
+		 * Check every 10 usec to see if the address cycle completed.
+		 * The MDI Command bit will clear when the operation is
+		 * complete
+		 */
+		for (i = 0; i < timeout; i++) {
+			udelay(10);
+
+			command = IXGBE_READ_REG(hw, IXGBE_MSCA);
+
+			if ((command & IXGBE_MSCA_MDI_COMMAND) == 0) {
+				hw_dbg(hw, "PHY address cmd didn't complete\n");
+				break;
+			}
+		}
+
+		if ((command & IXGBE_MSCA_MDI_COMMAND) != 0)
+			status = IXGBE_ERR_PHY;
+
+		if (status == 0) {
+			/*
+			 * Address cycle complete, setup and write the write
+			 * command
+			 */
+			command = ((reg_addr << IXGBE_MSCA_NP_ADDR_SHIFT)  |
+				   (device_type << IXGBE_MSCA_DEV_TYPE_SHIFT) |
+				   (hw->phy.addr << IXGBE_MSCA_PHY_ADDR_SHIFT) |
+				   (IXGBE_MSCA_WRITE | IXGBE_MSCA_MDI_COMMAND));
+
+			IXGBE_WRITE_REG(hw, IXGBE_MSCA, command);
+
+			/*
+			 * Check every 10 usec to see if the address cycle
+			 * completed. The MDI Command bit will clear when the
+			 * operation is complete
+			 */
+			for (i = 0; i < timeout; i++) {
+				udelay(10);
+
+				command = IXGBE_READ_REG(hw, IXGBE_MSCA);
+
+				if ((command & IXGBE_MSCA_MDI_COMMAND) == 0) {
+					hw_dbg(hw, "PHY write command did not "
+						  "complete.\n");
+					break;
+				}
+			}
+
+			if ((command & IXGBE_MSCA_MDI_COMMAND) != 0)
+				status = IXGBE_ERR_PHY;
+		}
+
+		ixgbe_release_swfw_sync(hw, gssr);
+	}
+
+	return status;
+}
+
+/**
+ *  ixgbe_setup_tnx_phy_link - Set and restart autoneg
+ *  @hw: pointer to hardware structure
+ *
+ *  Restart autonegotiation and PHY and waits for completion.
+ **/
+s32 ixgbe_setup_tnx_phy_link(struct ixgbe_hw *hw)
+{
+	s32 status = IXGBE_NOT_IMPLEMENTED;
+	u32 time_out;
+	u32 max_time_out = 10;
+	u16 autoneg_speed_selection_register = 0x10;
+	u16 autoneg_restart_mask = 0x0200;
+	u16 autoneg_complete_mask = 0x0020;
+	u16 autoneg_reg = 0;
+
+	/*
+	 * Set advertisement settings in PHY based on autoneg_advertised
+	 * settings. If autoneg_advertised = 0, then advertise default values
+	 * txn devices cannot be "forced" to a autoneg 10G and fail.  But can
+	 * for a 1G.
+	 */
+	ixgbe_read_phy_reg(hw,
+		  autoneg_speed_selection_register,
+		  IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+		  &autoneg_reg);
+
+	if (hw->phy.autoneg_advertised == IXGBE_LINK_SPEED_1GB_FULL)
+		autoneg_reg &= 0xEFFF; /* 0 in bit 12 is 1G operation */
+	else
+		autoneg_reg |= 0x1000; /* 1 in bit 12 is 10G/1G operation */
+
+	ixgbe_write_phy_reg(hw,
+		  autoneg_speed_selection_register,
+		  IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+		  autoneg_reg);
+
+
+	/* Restart PHY autonegotiation and wait for completion */
+	ixgbe_read_phy_reg(hw,
+		  IXGBE_MDIO_AUTO_NEG_CONTROL,
+		  IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+		  &autoneg_reg);
+
+	autoneg_reg |= autoneg_restart_mask;
+
+	ixgbe_write_phy_reg(hw,
+		  IXGBE_MDIO_AUTO_NEG_CONTROL,
+		  IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+		  autoneg_reg);
+
+	/* Wait for autonegotiation to finish */
+	for (time_out = 0; time_out < max_time_out; time_out++) {
+		udelay(10);
+		/* Restart PHY autonegotiation and wait for completion */
+		status = ixgbe_read_phy_reg(hw,
+					    IXGBE_MDIO_AUTO_NEG_STATUS,
+					    IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+					    &autoneg_reg);
+
+		autoneg_reg &= autoneg_complete_mask;
+		if (autoneg_reg == autoneg_complete_mask) {
+			status = 0;
+			break;
+		}
+	}
+
+	if (time_out == max_time_out)
+		status = IXGBE_ERR_LINK_SETUP;
+
+	return status;
+}
+
+/**
+ *  ixgbe_check_tnx_phy_link - Determine link and speed status
+ *  @hw: pointer to hardware structure
+ *
+ *  Reads the VS1 register to determine if link is up and the current speed for
+ *  the PHY.
+ **/
+s32 ixgbe_check_tnx_phy_link(struct ixgbe_hw *hw, u32 *speed,
+			     bool *link_up)
+{
+	s32 status = 0;
+	u32 time_out;
+	u32 max_time_out = 10;
+	u16 phy_link = 0;
+	u16 phy_speed = 0;
+	u16 phy_data = 0;
+
+	/* Initialize speed and link to default case */
+	*link_up = false;
+	*speed = IXGBE_LINK_SPEED_10GB_FULL;
+
+	/*
+	 * Check current speed and link status of the PHY register.
+	 * This is a vendor specific register and may have to
+	 * be changed for other copper PHYs.
+	 */
+	for (time_out = 0; time_out < max_time_out; time_out++) {
+		udelay(10);
+		if (phy_link == IXGBE_MDIO_VENDOR_SPECIFIC_1_LINK_STATUS) {
+			*link_up = true;
+			if (phy_speed ==
+			    IXGBE_MDIO_VENDOR_SPECIFIC_1_SPEED_STATUS)
+				*speed = IXGBE_LINK_SPEED_1GB_FULL;
+			break;
+		} else {
+			status = ixgbe_read_phy_reg(hw,
+				     IXGBE_MDIO_VENDOR_SPECIFIC_1_STATUS,
+				     IXGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE,
+				     &phy_data);
+			phy_link = phy_data &
+				IXGBE_MDIO_VENDOR_SPECIFIC_1_LINK_STATUS;
+			phy_speed = phy_data &
+				IXGBE_MDIO_VENDOR_SPECIFIC_1_SPEED_STATUS;
+		}
+	}
+
+	return status;
+}
+
+/**
+ *  ixgbe_setup_tnx_phy_link_speed - Sets the auto advertised capabilities
+ *  @hw: pointer to hardware structure
+ *  @speed: new link speed
+ *  @autoneg: true if autonegotiation enabled
+ **/
+s32 ixgbe_setup_tnx_phy_link_speed(struct ixgbe_hw *hw, u32 speed,
+				   bool autoneg,
+				   bool autoneg_wait_to_complete)
+{
+	/*
+	 * Clear autoneg_advertised and set new values based on input link
+	 * speed.
+	 */
+	hw->phy.autoneg_advertised = 0;
+
+	if (speed & IXGBE_LINK_SPEED_10GB_FULL)
+		hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
+	if (speed & IXGBE_LINK_SPEED_1GB_FULL)
+		hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
+
+	/* Setup link based on the new speed settings */
+	ixgbe_setup_tnx_phy_link(hw);
+
+	return 0;
+}

drivers/net/ixgbe/ixgbe_phy.h

+/*******************************************************************************
+
+  Intel 10 Gigabit PCI Express Linux driver
+  Copyright(c) 1999 - 2007 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,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _IXGBE_PHY_H_
+#define _IXGBE_PHY_H_
+
+#include "ixgbe_type.h"
+
+s32 ixgbe_init_shared_code_phy(struct ixgbe_hw *hw);
+s32 ixgbe_setup_phy_link(struct ixgbe_hw *hw);
+s32 ixgbe_check_phy_link(struct ixgbe_hw *hw, u32 *speed, bool *link_up);
+s32 ixgbe_setup_phy_link_speed(struct ixgbe_hw *hw, u32 speed, bool autoneg,
+			       bool autoneg_wait_to_complete);
+s32 ixgbe_identify_phy(struct ixgbe_hw *hw);
+s32 ixgbe_reset_phy(struct ixgbe_hw *hw);
+s32 ixgbe_read_phy_reg(struct ixgbe_hw *hw, u32 reg_addr,
+			       u32 device_type, u16 *phy_data);
+
+/* PHY specific */
+s32 ixgbe_setup_tnx_phy_link(struct ixgbe_hw *hw);
+s32 ixgbe_check_tnx_phy_link(struct ixgbe_hw *hw, u32 *speed, bool *link_up);
+s32 ixgbe_setup_tnx_phy_link_speed(struct ixgbe_hw *hw, u32 speed, bool autoneg,
+				  bool autoneg_wait_to_complete);
+
+#endif /* _IXGBE_PHY_H_ */