/spare/repo/netdev-2.6 branch 'chelsio'

18 files changed, 6953 insertions, 0 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 43d14bfb1016..e0239a10d325 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2104,6 +2104,25 @@ endmenu
 menu "Ethernet (10000 Mbit)"
 	depends on !UML
 
+config CHELSIO_T1
+        tristate "Chelsio 10Gb Ethernet support"
+        depends on PCI
+        help
+          This driver supports Chelsio N110 and N210 models 10Gb Ethernet
+          cards. More information about adapter features and performance
+          tuning is in <file:Documentation/networking/cxgb.txt>.
+
+          For general information about Chelsio and our products, visit
+          our website at <http://www.chelsio.com>.
+
+          For customer support, please visit our customer support page at
+          <http://www.chelsio.com/support.htm>.
+
+          Please send feedback to <linux-bugs@chelsio.com>.
+
+          To compile this driver as a module, choose M here: the module
+          will be called cxgb.
+
 config IXGB
 	tristate "Intel(R) PRO/10GbE support"
 	depends on PCI
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index c5c71d707587..5baafcd55610 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -9,6 +9,7 @@ endif
 obj-$(CONFIG_E1000) += e1000/
 obj-$(CONFIG_IBM_EMAC) += ibm_emac/
 obj-$(CONFIG_IXGB) += ixgb/
+obj-$(CONFIG_CHELSIO_T1) += chelsio/
 obj-$(CONFIG_BONDING) += bonding/
 obj-$(CONFIG_GIANFAR) += gianfar_driver.o
 
diff --git a/drivers/net/chelsio/Makefile b/drivers/net/chelsio/Makefile
new file mode 100644
index 000000000000..91e927827c43
--- /dev/null
+++ b/drivers/net/chelsio/Makefile
@@ -0,0 +1,11 @@
+#
+# Chelsio 10Gb NIC driver for Linux.
+#
+
+obj-$(CONFIG_CHELSIO_T1) += cxgb.o
+
+EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/chelsio $(DEBUG_FLAGS)
+
+
+cxgb-objs := cxgb2.o espi.o pm3393.o sge.o subr.o mv88x201x.o
+
diff --git a/drivers/net/chelsio/common.h b/drivers/net/chelsio/common.h
new file mode 100644
index 000000000000..f09348802b46
--- /dev/null
+++ b/drivers/net/chelsio/common.h
@@ -0,0 +1,314 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: common.h                                                            *
+ * $Revision: 1.21 $                                                         *
+ * $Date: 2005/06/22 00:43:25 $                                              *
+ * Description:                                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_COMMON_H_
+#define _CXGB_COMMON_H_
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/crc32.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <linux/pci_ids.h>
+
+#define DRV_DESCRIPTION "Chelsio 10Gb Ethernet Driver"
+#define DRV_NAME "cxgb"
+#define DRV_VERSION "2.1.1"
+#define PFX      DRV_NAME ": "
+
+#define CH_ERR(fmt, ...)   printk(KERN_ERR PFX fmt, ## __VA_ARGS__)
+#define CH_WARN(fmt, ...)  printk(KERN_WARNING PFX fmt, ## __VA_ARGS__)
+#define CH_ALERT(fmt, ...) printk(KERN_ALERT PFX fmt, ## __VA_ARGS__)
+
+#define CH_DEVICE(devid, ssid, idx) \
+	{ PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
+
+#define SUPPORTED_PAUSE       (1 << 13)
+#define SUPPORTED_LOOPBACK    (1 << 15)
+
+#define ADVERTISED_PAUSE      (1 << 13)
+#define ADVERTISED_ASYM_PAUSE (1 << 14)
+
+typedef struct adapter adapter_t;
+
+void t1_elmer0_ext_intr(adapter_t *adapter);
+void t1_link_changed(adapter_t *adapter, int port_id, int link_status,
+			int speed, int duplex, int fc);
+
+struct t1_rx_mode {
+	struct net_device *dev;
+	u32 idx;
+	struct dev_mc_list *list;
+};
+
+#define t1_rx_mode_promisc(rm)	(rm->dev->flags & IFF_PROMISC)
+#define t1_rx_mode_allmulti(rm)	(rm->dev->flags & IFF_ALLMULTI)
+#define t1_rx_mode_mc_cnt(rm)	(rm->dev->mc_count)
+
+static inline u8 *t1_get_next_mcaddr(struct t1_rx_mode *rm)
+{
+	u8 *addr = 0;
+
+	if (rm->idx++ < rm->dev->mc_count) {
+		addr = rm->list->dmi_addr;
+		rm->list = rm->list->next;
+	}
+	return addr;
+}
+
+#define	MAX_NPORTS 4
+
+#define SPEED_INVALID 0xffff
+#define DUPLEX_INVALID 0xff
+
+enum {
+	CHBT_BOARD_N110,
+	CHBT_BOARD_N210
+};
+
+enum {
+	CHBT_TERM_T1,
+	CHBT_TERM_T2
+};
+
+enum {
+	CHBT_MAC_PM3393,
+};
+
+enum {
+	CHBT_PHY_88X2010,
+};
+
+enum {
+	PAUSE_RX      = 1 << 0,
+	PAUSE_TX      = 1 << 1,
+	PAUSE_AUTONEG = 1 << 2
+};
+
+/* Revisions of T1 chip */
+enum {
+	TERM_T1A   = 0,
+	TERM_T1B   = 1,
+	TERM_T2    = 3
+};
+
+struct sge_params {
+	unsigned int cmdQ_size[2];
+	unsigned int freelQ_size[2];
+	unsigned int large_buf_capacity;
+	unsigned int rx_coalesce_usecs;
+	unsigned int last_rx_coalesce_raw;
+	unsigned int default_rx_coalesce_usecs;
+	unsigned int sample_interval_usecs;
+	unsigned int coalesce_enable;
+	unsigned int polling;
+};
+
+struct chelsio_pci_params {
+	unsigned short speed;
+	unsigned char  width;
+	unsigned char  is_pcix;
+};
+
+struct adapter_params {
+	struct sge_params sge;
+	struct chelsio_pci_params pci;
+
+	const struct board_info *brd_info;
+
+	unsigned int   nports;          /* # of ethernet ports */
+	unsigned int   stats_update_period;
+	unsigned short chip_revision;
+	unsigned char  chip_version;
+};
+
+struct link_config {
+	unsigned int   supported;        /* link capabilities */
+	unsigned int   advertising;      /* advertised capabilities */
+	unsigned short requested_speed;  /* speed user has requested */
+	unsigned short speed;            /* actual link speed */
+	unsigned char  requested_duplex; /* duplex user has requested */
+	unsigned char  duplex;           /* actual link duplex */
+	unsigned char  requested_fc;     /* flow control user has requested */
+	unsigned char  fc;               /* actual link flow control */
+	unsigned char  autoneg;          /* autonegotiating? */
+};
+
+struct cmac;
+struct cphy;
+
+struct port_info {
+	struct net_device *dev;
+	struct cmac *mac;
+	struct cphy *phy;
+	struct link_config link_config;
+	struct net_device_stats netstats;
+};
+
+struct sge;
+struct peespi;
+
+struct adapter {
+	u8 *regs;
+	struct pci_dev *pdev;
+	unsigned long registered_device_map;
+	unsigned long open_device_map;
+	unsigned long flags;
+
+	const char *name;
+	int msg_enable;
+	u32 mmio_len;
+
+	struct work_struct ext_intr_handler_task;
+	struct adapter_params params;
+
+	struct vlan_group *vlan_grp;
+
+	/* Terminator modules. */
+	struct sge    *sge;
+	struct peespi *espi;
+
+	struct port_info port[MAX_NPORTS];
+	struct work_struct stats_update_task;
+	struct timer_list stats_update_timer;
+
+	struct semaphore mib_mutex;
+	spinlock_t tpi_lock;
+	spinlock_t work_lock;
+	/* guards async operations */
+	spinlock_t async_lock ____cacheline_aligned;
+	u32 slow_intr_mask;
+};
+
+enum {                                           /* adapter flags */
+	FULL_INIT_DONE        = 1 << 0,
+	TSO_CAPABLE           = 1 << 2,
+	TCP_CSUM_CAPABLE      = 1 << 3,
+	UDP_CSUM_CAPABLE      = 1 << 4,
+	VLAN_ACCEL_CAPABLE    = 1 << 5,
+	RX_CSUM_ENABLED       = 1 << 6,
+};
+
+struct mdio_ops;
+struct gmac;
+struct gphy;
+
+struct board_info {
+	unsigned char           board;
+	unsigned char           port_number;
+	unsigned long           caps;
+	unsigned char           chip_term;
+	unsigned char           chip_mac;
+	unsigned char           chip_phy;
+	unsigned int            clock_core;
+	unsigned int            clock_mc3;
+	unsigned int            clock_mc4;
+	unsigned int            espi_nports;
+	unsigned int            clock_cspi;
+	unsigned int            clock_elmer0;
+	unsigned char           mdio_mdien;
+	unsigned char           mdio_mdiinv;
+	unsigned char           mdio_mdc;
+	unsigned char           mdio_phybaseaddr;
+	struct gmac            *gmac;
+	struct gphy            *gphy;
+	struct mdio_ops	       *mdio_ops;
+	const char             *desc;
+};
+
+extern struct pci_device_id t1_pci_tbl[];
+
+static inline int adapter_matches_type(const adapter_t *adapter,
+				       int version, int revision)
+{
+	return adapter->params.chip_version == version &&
+	       adapter->params.chip_revision == revision;
+}
+
+#define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
+#define is_T2(adap)     adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
+
+/* Returns true if an adapter supports VLAN acceleration and TSO */
+static inline int vlan_tso_capable(const adapter_t *adapter)
+{
+	return !t1_is_T1B(adapter);
+}
+
+#define for_each_port(adapter, iter) \
+	for (iter = 0; iter < (adapter)->params.nports; ++iter)
+
+#define board_info(adapter) ((adapter)->params.brd_info)
+#define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
+
+static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
+{
+	return board_info(adap)->clock_core / 1000000;
+}
+
+extern int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
+extern int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
+
+extern void t1_interrupts_enable(adapter_t *adapter);
+extern void t1_interrupts_disable(adapter_t *adapter);
+extern void t1_interrupts_clear(adapter_t *adapter);
+extern int elmer0_ext_intr_handler(adapter_t *adapter);
+extern int t1_slow_intr_handler(adapter_t *adapter);
+
+extern int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
+extern const struct board_info *t1_get_board_info(unsigned int board_id);
+extern const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
+						    unsigned short ssid);
+extern int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data);
+extern int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
+		     struct adapter_params *p);
+extern int t1_init_hw_modules(adapter_t *adapter);
+extern int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
+extern void t1_free_sw_modules(adapter_t *adapter);
+extern void t1_fatal_err(adapter_t *adapter);
+
+extern void t1_tp_set_udp_checksum_offload(adapter_t *adapter, int enable);
+extern void t1_tp_set_tcp_checksum_offload(adapter_t *adapter, int enable);
+extern void t1_tp_set_ip_checksum_offload(adapter_t *adapter, int enable);
+
+#endif /* _CXGB_COMMON_H_ */
diff --git a/drivers/net/chelsio/cphy.h b/drivers/net/chelsio/cphy.h
new file mode 100644
index 000000000000..3412342f7345
--- /dev/null
+++ b/drivers/net/chelsio/cphy.h
@@ -0,0 +1,148 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: cphy.h                                                              *
+ * $Revision: 1.7 $                                                          *
+ * $Date: 2005/06/21 18:29:47 $                                              *
+ * Description:                                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_CPHY_H_
+#define _CXGB_CPHY_H_
+
+#include "common.h"
+
+struct mdio_ops {
+	void (*init)(adapter_t *adapter, const struct board_info *bi);
+	int  (*read)(adapter_t *adapter, int phy_addr, int mmd_addr,
+		     int reg_addr, unsigned int *val);
+	int  (*write)(adapter_t *adapter, int phy_addr, int mmd_addr,
+		      int reg_addr, unsigned int val);
+};
+
+/* PHY interrupt types */
+enum {
+	cphy_cause_link_change = 0x1,
+	cphy_cause_error = 0x2
+};
+
+struct cphy;
+
+/* PHY operations */
+struct cphy_ops {
+	void (*destroy)(struct cphy *);
+	int (*reset)(struct cphy *, int wait);
+
+	int (*interrupt_enable)(struct cphy *);
+	int (*interrupt_disable)(struct cphy *);
+	int (*interrupt_clear)(struct cphy *);
+	int (*interrupt_handler)(struct cphy *);
+
+	int (*autoneg_enable)(struct cphy *);
+	int (*autoneg_disable)(struct cphy *);
+	int (*autoneg_restart)(struct cphy *);
+
+	int (*advertise)(struct cphy *phy, unsigned int advertise_map);
+	int (*set_loopback)(struct cphy *, int on);
+	int (*set_speed_duplex)(struct cphy *phy, int speed, int duplex);
+	int (*get_link_status)(struct cphy *phy, int *link_ok, int *speed,
+			       int *duplex, int *fc);
+};
+
+/* A PHY instance */
+struct cphy {
+	int addr;                            /* PHY address */
+	adapter_t *adapter;                  /* associated adapter */
+	struct cphy_ops *ops;                /* PHY operations */
+	int (*mdio_read)(adapter_t *adapter, int phy_addr, int mmd_addr,
+			 int reg_addr, unsigned int *val);
+	int (*mdio_write)(adapter_t *adapter, int phy_addr, int mmd_addr,
+			  int reg_addr, unsigned int val);
+	struct cphy_instance *instance;
+};
+
+/* Convenience MDIO read/write wrappers */
+static inline int mdio_read(struct cphy *cphy, int mmd, int reg,
+			    unsigned int *valp)
+{
+	return cphy->mdio_read(cphy->adapter, cphy->addr, mmd, reg, valp);
+}
+
+static inline int mdio_write(struct cphy *cphy, int mmd, int reg,
+			     unsigned int val)
+{
+	return cphy->mdio_write(cphy->adapter, cphy->addr, mmd, reg, val);
+}
+
+static inline int simple_mdio_read(struct cphy *cphy, int reg,
+				   unsigned int *valp)
+{
+	return mdio_read(cphy, 0, reg, valp);
+}
+
+static inline int simple_mdio_write(struct cphy *cphy, int reg,
+				    unsigned int val)
+{
+	return mdio_write(cphy, 0, reg, val);
+}
+
+/* Convenience initializer */
+static inline void cphy_init(struct cphy *phy, adapter_t *adapter,
+			     int phy_addr, struct cphy_ops *phy_ops,
+			     struct mdio_ops *mdio_ops)
+{
+	phy->adapter = adapter;
+	phy->addr    = phy_addr;
+	phy->ops     = phy_ops;
+	if (mdio_ops) {
+		phy->mdio_read  = mdio_ops->read;
+		phy->mdio_write = mdio_ops->write;
+	}
+}
+
+/* Operations of the PHY-instance factory */
+struct gphy {
+	/* Construct a PHY instance with the given PHY address */
+	struct cphy *(*create)(adapter_t *adapter, int phy_addr,
+			       struct mdio_ops *mdio_ops);
+
+	/*
+	 * Reset the PHY chip.  This resets the whole PHY chip, not individual
+	 * ports.
+	 */
+	int (*reset)(adapter_t *adapter);
+};
+
+extern struct gphy t1_mv88x201x_ops;
+extern struct gphy t1_dummy_phy_ops;
+
+#endif /* _CXGB_CPHY_H_ */
diff --git a/drivers/net/chelsio/cpl5_cmd.h b/drivers/net/chelsio/cpl5_cmd.h
new file mode 100644
index 000000000000..27925e487bcf
--- /dev/null
+++ b/drivers/net/chelsio/cpl5_cmd.h
@@ -0,0 +1,145 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: cpl5_cmd.h                                                          *
+ * $Revision: 1.6 $                                                          *
+ * $Date: 2005/06/21 18:29:47 $                                              *
+ * Description:                                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_CPL5_CMD_H_
+#define _CXGB_CPL5_CMD_H_
+
+#include <asm/byteorder.h>
+
+#if !defined(__LITTLE_ENDIAN_BITFIELD) && !defined(__BIG_ENDIAN_BITFIELD)
+#error "Adjust your <asm/byteorder.h> defines"
+#endif
+
+enum CPL_opcode {
+	CPL_RX_PKT            = 0xAD,
+	CPL_TX_PKT            = 0xB2,
+	CPL_TX_PKT_LSO        = 0xB6,
+};
+
+enum {                /* TX_PKT_LSO ethernet types */
+	CPL_ETH_II,
+	CPL_ETH_II_VLAN,
+	CPL_ETH_802_3,
+	CPL_ETH_802_3_VLAN
+};
+
+struct cpl_rx_data {
+	u32 rsvd0;
+	u32 len;
+	u32 seq;
+	u16 urg;
+	u8  rsvd1;
+	u8  status;
+};
+
+/*
+ * We want this header's alignment to be no more stringent than 2-byte aligned.
+ * All fields are u8 or u16 except for the length.  However that field is not
+ * used so we break it into 2 16-bit parts to easily meet our alignment needs.
+ */
+struct cpl_tx_pkt {
+	u8 opcode;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+	u8 iff:4;
+	u8 ip_csum_dis:1;
+	u8 l4_csum_dis:1;
+	u8 vlan_valid:1;
+	u8 rsvd:1;
+#else
+	u8 rsvd:1;
+	u8 vlan_valid:1;
+	u8 l4_csum_dis:1;
+	u8 ip_csum_dis:1;
+	u8 iff:4;
+#endif
+	u16 vlan;
+	u16 len_hi;
+	u16 len_lo;
+};
+
+struct cpl_tx_pkt_lso {
+	u8 opcode;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+	u8 iff:4;
+	u8 ip_csum_dis:1;
+	u8 l4_csum_dis:1;
+	u8 vlan_valid:1;
+	u8 rsvd:1;
+#else
+	u8 rsvd:1;
+	u8 vlan_valid:1;
+	u8 l4_csum_dis:1;
+	u8 ip_csum_dis:1;
+	u8 iff:4;
+#endif
+	u16 vlan;
+	u32 len;
+
+	u32 rsvd2;
+	u8 rsvd3;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+	u8 tcp_hdr_words:4;
+	u8 ip_hdr_words:4;
+#else
+	u8 ip_hdr_words:4;
+	u8 tcp_hdr_words:4;
+#endif
+	u16 eth_type_mss;
+};
+
+struct cpl_rx_pkt {
+	u8 opcode;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+	u8 iff:4;
+	u8 csum_valid:1;
+	u8 bad_pkt:1;
+	u8 vlan_valid:1;
+	u8 rsvd:1;
+#else
+	u8 rsvd:1;
+	u8 vlan_valid:1;
+	u8 bad_pkt:1;
+	u8 csum_valid:1;
+	u8 iff:4;
+#endif
+	u16 csum;
+	u16 vlan;
+	u16 len;
+};
+
+#endif /* _CXGB_CPL5_CMD_H_ */
diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c
new file mode 100644
index 000000000000..28ae478b386d
--- /dev/null
+++ b/drivers/net/chelsio/cxgb2.c
@@ -0,0 +1,1256 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: cxgb2.c                                                             *
+ * $Revision: 1.25 $                                                         *
+ * $Date: 2005/06/22 00:43:25 $                                              *
+ * Description:                                                              *
+ *  Chelsio 10Gb Ethernet Driver.                                            *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#include "common.h"
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/mii.h>
+#include <linux/sockios.h>
+#include <linux/proc_fs.h>
+#include <linux/dma-mapping.h>
+#include <asm/uaccess.h>
+
+#include "cpl5_cmd.h"
+#include "regs.h"
+#include "gmac.h"
+#include "cphy.h"
+#include "sge.h"
+#include "espi.h"
+
+#ifdef work_struct
+#include <linux/tqueue.h>
+#define INIT_WORK INIT_TQUEUE
+#define schedule_work schedule_task
+#define flush_scheduled_work flush_scheduled_tasks
+
+static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
+{
+	mod_timer(&ap->stats_update_timer, jiffies + secs * HZ);
+}
+
+static inline void cancel_mac_stats_update(struct adapter *ap)
+{
+	del_timer_sync(&ap->stats_update_timer);
+	flush_scheduled_tasks();
+}
+
+/*
+ * Stats update timer for 2.4.  It schedules a task to do the actual update as
+ * we need to access MAC statistics in process context.
+ */
+static void mac_stats_timer(unsigned long data)
+{
+	struct adapter *ap = (struct adapter *)data;
+
+	schedule_task(&ap->stats_update_task);
+}
+#else
+#include <linux/workqueue.h>
+
+static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
+{
+	schedule_delayed_work(&ap->stats_update_task, secs * HZ);
+}
+
+static inline void cancel_mac_stats_update(struct adapter *ap)
+{
+	cancel_delayed_work(&ap->stats_update_task);
+}
+#endif
+
+#define MAX_CMDQ_ENTRIES 16384
+#define MAX_CMDQ1_ENTRIES 1024
+#define MAX_RX_BUFFERS 16384
+#define MAX_RX_JUMBO_BUFFERS 16384
+#define MAX_TX_BUFFERS_HIGH	16384U
+#define MAX_TX_BUFFERS_LOW	1536U
+#define MIN_FL_ENTRIES 32
+
+#define PORT_MASK ((1 << MAX_NPORTS) - 1)
+
+#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
+			 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
+			 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
+
+/*
+ * The EEPROM is actually bigger but only the first few bytes are used so we
+ * only report those.
+ */
+#define EEPROM_SIZE 32
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR("Chelsio Communications");
+MODULE_LICENSE("GPL");
+
+static int dflt_msg_enable = DFLT_MSG_ENABLE;
+
+MODULE_PARM(dflt_msg_enable, "i");
+MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 message enable bitmap");
+
+
+static const char pci_speed[][4] = {
+	"33", "66", "100", "133"
+};
+
+/*
+ * Setup MAC to receive the types of packets we want.
+ */
+static void t1_set_rxmode(struct net_device *dev)
+{
+	struct adapter *adapter = dev->priv;
+	struct cmac *mac = adapter->port[dev->if_port].mac;
+	struct t1_rx_mode rm;
+
+	rm.dev = dev;
+	rm.idx = 0;
+	rm.list = dev->mc_list;
+	mac->ops->set_rx_mode(mac, &rm);
+}
+
+static void link_report(struct port_info *p)
+{
+	if (!netif_carrier_ok(p->dev))
+        	printk(KERN_INFO "%s: link down\n", p->dev->name);
+	else {
+		const char *s = "10Mbps";
+
+		switch (p->link_config.speed) {
+			case SPEED_10000: s = "10Gbps"; break;
+			case SPEED_1000:  s = "1000Mbps"; break;
+			case SPEED_100:   s = "100Mbps"; break;
+		}
+
+        printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
+		       p->dev->name, s,
+		       p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
+	}
+}
+
+void t1_link_changed(struct adapter *adapter, int port_id, int link_stat,
+			int speed, int duplex, int pause)
+{
+	struct port_info *p = &adapter->port[port_id];
+
+	if (link_stat != netif_carrier_ok(p->dev)) {
+		if (link_stat)
+			netif_carrier_on(p->dev);
+		else
+			netif_carrier_off(p->dev);
+		link_report(p);
+
+	}
+}
+
+static void link_start(struct port_info *p)
+{
+	struct cmac *mac = p->mac;
+
+	mac->ops->reset(mac);
+	if (mac->ops->macaddress_set)
+		mac->ops->macaddress_set(mac, p->dev->dev_addr);
+	t1_set_rxmode(p->dev);
+	t1_link_start(p->phy, mac, &p->link_config);
+	mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
+}
+
+static void enable_hw_csum(struct adapter *adapter)
+{
+	if (adapter->flags & TSO_CAPABLE)
+		t1_tp_set_ip_checksum_offload(adapter, 1); /* for TSO only */
+	t1_tp_set_tcp_checksum_offload(adapter, 1);
+}
+
+/*
+ * Things to do upon first use of a card.
+ * This must run with the rtnl lock held.
+ */
+static int cxgb_up(struct adapter *adapter)
+{
+	int err = 0;
+
+	if (!(adapter->flags & FULL_INIT_DONE)) {
+		err = t1_init_hw_modules(adapter);
+		if (err)
+			goto out_err;
+
+		enable_hw_csum(adapter);
+		adapter->flags |= FULL_INIT_DONE;
+	}
+
+	t1_interrupts_clear(adapter);
+	if ((err = request_irq(adapter->pdev->irq,
+			       t1_select_intr_handler(adapter), SA_SHIRQ,
+			       adapter->name, adapter))) {
+		goto out_err;
+	}
+	t1_sge_start(adapter->sge);
+	t1_interrupts_enable(adapter);
+ out_err:
+	return err;
+}
+
+/*
+ * Release resources when all the ports have been stopped.
+ */
+static void cxgb_down(struct adapter *adapter)
+{
+	t1_sge_stop(adapter->sge);
+	t1_interrupts_disable(adapter);
+	free_irq(adapter->pdev->irq, adapter);
+}
+
+static int cxgb_open(struct net_device *dev)
+{
+	int err;
+	struct adapter *adapter = dev->priv;
+	int other_ports = adapter->open_device_map & PORT_MASK;
+
+	if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0)
+		return err;
+
+	__set_bit(dev->if_port, &adapter->open_device_map);
+	link_start(&adapter->port[dev->if_port]);
+	netif_start_queue(dev);
+	if (!other_ports && adapter->params.stats_update_period)
+		schedule_mac_stats_update(adapter,
+					  adapter->params.stats_update_period);
+	return 0;
+}
+
+static int cxgb_close(struct net_device *dev)
+{
+	struct adapter *adapter = dev->priv;
+	struct port_info *p = &adapter->port[dev->if_port];
+	struct cmac *mac = p->mac;
+
+	netif_stop_queue(dev);
+	mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
+	netif_carrier_off(dev);
+
+	clear_bit(dev->if_port, &adapter->open_device_map);
+	if (adapter->params.stats_update_period &&
+	    !(adapter->open_device_map & PORT_MASK)) {
+		/* Stop statistics accumulation. */
+		smp_mb__after_clear_bit();
+		spin_lock(&adapter->work_lock);   /* sync with update task */
+		spin_unlock(&adapter->work_lock);
+		cancel_mac_stats_update(adapter);
+	}
+
+	if (!adapter->open_device_map)
+		cxgb_down(adapter);
+	return 0;
+}
+
+static struct net_device_stats *t1_get_stats(struct net_device *dev)
+{
+	struct adapter *adapter = dev->priv;
+	struct port_info *p = &adapter->port[dev->if_port];
+	struct net_device_stats *ns = &p->netstats;
+	const struct cmac_statistics *pstats;
+
+	/* Do a full update of the MAC stats */
+	pstats = p->mac->ops->statistics_update(p->mac,
+						      MAC_STATS_UPDATE_FULL);
+
+	ns->tx_packets = pstats->TxUnicastFramesOK +
+		pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
+
+	ns->rx_packets = pstats->RxUnicastFramesOK +
+		pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
+
+	ns->tx_bytes = pstats->TxOctetsOK;
+	ns->rx_bytes = pstats->RxOctetsOK;
+
+	ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
+		pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
+	ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
+		pstats->RxFCSErrors + pstats->RxAlignErrors +
+		pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
+		pstats->RxSymbolErrors + pstats->RxRuntErrors;
+
+	ns->multicast  = pstats->RxMulticastFramesOK;
+	ns->collisions = pstats->TxTotalCollisions;
+
+	/* detailed rx_errors */
+	ns->rx_length_errors = pstats->RxFrameTooLongErrors +
+		pstats->RxJabberErrors;
+	ns->rx_over_errors   = 0;
+	ns->rx_crc_errors    = pstats->RxFCSErrors;
+	ns->rx_frame_errors  = pstats->RxAlignErrors;
+	ns->rx_fifo_errors   = 0;
+	ns->rx_missed_errors = 0;
+
+	/* detailed tx_errors */
+	ns->tx_aborted_errors   = pstats->TxFramesAbortedDueToXSCollisions;
+	ns->tx_carrier_errors   = 0;
+	ns->tx_fifo_errors      = pstats->TxUnderrun;
+	ns->tx_heartbeat_errors = 0;
+	ns->tx_window_errors    = pstats->TxLateCollisions;
+	return ns;
+}
+
+static u32 get_msglevel(struct net_device *dev)
+{
+	struct adapter *adapter = dev->priv;
+
+	return adapter->msg_enable;
+}
+
+static void set_msglevel(struct net_device *dev, u32 val)
+{
+	struct adapter *adapter = dev->priv;
+
+	adapter->msg_enable = val;
+}
+
+static char stats_strings[][ETH_GSTRING_LEN] = {
+        "TxOctetsOK",
+        "TxOctetsBad",
+        "TxUnicastFramesOK",
+        "TxMulticastFramesOK",
+        "TxBroadcastFramesOK",
+        "TxPauseFrames",
+        "TxFramesWithDeferredXmissions",
+        "TxLateCollisions",
+        "TxTotalCollisions",
+        "TxFramesAbortedDueToXSCollisions",
+        "TxUnderrun",
+        "TxLengthErrors",
+        "TxInternalMACXmitError",
+        "TxFramesWithExcessiveDeferral",
+        "TxFCSErrors",
+
+        "RxOctetsOK",
+        "RxOctetsBad",
+        "RxUnicastFramesOK",
+        "RxMulticastFramesOK",
+        "RxBroadcastFramesOK",
+        "RxPauseFrames",
+        "RxFCSErrors",
+        "RxAlignErrors",
+        "RxSymbolErrors",
+        "RxDataErrors",
+        "RxSequenceErrors",
+        "RxRuntErrors",
+        "RxJabberErrors",
+        "RxInternalMACRcvError",
+        "RxInRangeLengthErrors",
+        "RxOutOfRangeLengthField",
+        "RxFrameTooLongErrors",
+
+	"TSO",
+	"VLANextractions",
+	"VLANinsertions",
+	"RxCsumGood",
+	"TxCsumOffload",
+	"RxDrops"
+
+	"respQ_empty",
+	"respQ_overflow",
+	"freelistQ_empty",
+	"pkt_too_big",
+	"pkt_mismatch",
+	"cmdQ_full0",
+	"cmdQ_full1",
+	"tx_ipfrags",
+	"tx_reg_pkts",
+	"tx_lso_pkts",
+	"tx_do_cksum",
+	
+	"espi_DIP2ParityErr",
+	"espi_DIP4Err",
+	"espi_RxDrops",
+	"espi_TxDrops",
+	"espi_RxOvfl",
+	"espi_ParityErr"
+};
+ 
+#define T2_REGMAP_SIZE (3 * 1024)
+
+static int get_regs_len(struct net_device *dev)
+{
+	return T2_REGMAP_SIZE;
+}
+
+static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+	struct adapter *adapter = dev->priv;
+
+	strcpy(info->driver, DRV_NAME);
+	strcpy(info->version, DRV_VERSION);
+	strcpy(info->fw_version, "N/A");
+	strcpy(info->bus_info, pci_name(adapter->pdev));
+}
+
+static int get_stats_count(struct net_device *dev)
+{
+	return ARRAY_SIZE(stats_strings);
+}
+
+static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+	if (stringset == ETH_SS_STATS)
+		memcpy(data, stats_strings, sizeof(stats_strings));
+}
+
+static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
+		      u64 *data)
+{
+	struct adapter *adapter = dev->priv;
+	struct cmac *mac = adapter->port[dev->if_port].mac;
+	const struct cmac_statistics *s;
+	const struct sge_port_stats *ss;
+	const struct sge_intr_counts *t;
+
+	s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
+	ss = t1_sge_get_port_stats(adapter->sge, dev->if_port);
+	t = t1_sge_get_intr_counts(adapter->sge);
+
+        *data++ = s->TxOctetsOK;
+        *data++ = s->TxOctetsBad;
+        *data++ = s->TxUnicastFramesOK;
+        *data++ = s->TxMulticastFramesOK;
+        *data++ = s->TxBroadcastFramesOK;
+        *data++ = s->TxPauseFrames;
+        *data++ = s->TxFramesWithDeferredXmissions;
+        *data++ = s->TxLateCollisions;
+        *data++ = s->TxTotalCollisions;
+        *data++ = s->TxFramesAbortedDueToXSCollisions;
+        *data++ = s->TxUnderrun;
+        *data++ = s->TxLengthErrors;
+        *data++ = s->TxInternalMACXmitError;
+        *data++ = s->TxFramesWithExcessiveDeferral;
+        *data++ = s->TxFCSErrors;
+
+        *data++ = s->RxOctetsOK;
+        *data++ = s->RxOctetsBad;
+        *data++ = s->RxUnicastFramesOK;
+        *data++ = s->RxMulticastFramesOK;
+        *data++ = s->RxBroadcastFramesOK;
+        *data++ = s->RxPauseFrames;
+        *data++ = s->RxFCSErrors;
+        *data++ = s->RxAlignErrors;
+        *data++ = s->RxSymbolErrors;
+        *data++ = s->RxDataErrors;
+        *data++ = s->RxSequenceErrors;
+        *data++ = s->RxRuntErrors;
+        *data++ = s->RxJabberErrors;
+        *data++ = s->RxInternalMACRcvError;
+        *data++ = s->RxInRangeLengthErrors;
+        *data++ = s->RxOutOfRangeLengthField;
+        *data++ = s->RxFrameTooLongErrors;
+
+	*data++ = ss->tso;
+	*data++ = ss->vlan_xtract;
+	*data++ = ss->vlan_insert;
+	*data++ = ss->rx_cso_good;
+	*data++ = ss->tx_cso;
+	*data++ = ss->rx_drops;
+
+	*data++ = (u64)t->respQ_empty;
+	*data++ = (u64)t->respQ_overflow;
+	*data++ = (u64)t->freelistQ_empty;
+	*data++ = (u64)t->pkt_too_big;
+	*data++ = (u64)t->pkt_mismatch;
+	*data++ = (u64)t->cmdQ_full[0];
+	*data++ = (u64)t->cmdQ_full[1];
+	*data++ = (u64)t->tx_ipfrags;
+	*data++ = (u64)t->tx_reg_pkts;
+	*data++ = (u64)t->tx_lso_pkts;
+	*data++ = (u64)t->tx_do_cksum;
+}
+
+static inline void reg_block_dump(struct adapter *ap, void *buf,
+				  unsigned int start, unsigned int end)
+{
+	u32 *p = buf + start;
+
+	for ( ; start <= end; start += sizeof(u32))
+		*p++ = readl(ap->regs + start);
+}
+
+static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
+		     void *buf)
+{
+	struct adapter *ap = dev->priv;
+
+	/*
+	 * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
+	 */
+	regs->version = 2;
+
+	memset(buf, 0, T2_REGMAP_SIZE);
+	reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
+}
+
+static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct adapter *adapter = dev->priv;
+	struct port_info *p = &adapter->port[dev->if_port];
+
+	cmd->supported = p->link_config.supported;
+	cmd->advertising = p->link_config.advertising;
+
+	if (netif_carrier_ok(dev)) {
+		cmd->speed = p->link_config.speed;
+		cmd->duplex = p->link_config.duplex;
+	} else {
+		cmd->speed = -1;
+		cmd->duplex = -1;
+	}
+
+        cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
+        cmd->phy_address = p->phy->addr;
+        cmd->transceiver = XCVR_EXTERNAL;
+        cmd->autoneg = p->link_config.autoneg;
+        cmd->maxtxpkt = 0;
+        cmd->maxrxpkt = 0;
+	return 0;
+}
+
+static int speed_duplex_to_caps(int speed, int duplex)
+{
+	int cap = 0;
+
+	switch (speed) {
+	case SPEED_10:
+		if (duplex == DUPLEX_FULL)
+			cap = SUPPORTED_10baseT_Full;
+		else
+			cap = SUPPORTED_10baseT_Half;
+		break;
+	case SPEED_100:
+		if (duplex == DUPLEX_FULL)
+			cap = SUPPORTED_100baseT_Full;
+		else
+			cap = SUPPORTED_100baseT_Half;
+		break;
+	case SPEED_1000:
+		if (duplex == DUPLEX_FULL)
+			cap = SUPPORTED_1000baseT_Full;
+		else
+			cap = SUPPORTED_1000baseT_Half;
+		break;
+	case SPEED_10000:
+		if (duplex == DUPLEX_FULL)
+			cap = SUPPORTED_10000baseT_Full;
+	}
+	return cap;
+}
+
+#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
+		      ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
+		      ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
+		      ADVERTISED_10000baseT_Full)
+
+static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct adapter *adapter = dev->priv;
+	struct port_info *p = &adapter->port[dev->if_port];
+	struct link_config *lc = &p->link_config;
+
+	if (!(lc->supported & SUPPORTED_Autoneg))
+		return -EOPNOTSUPP;             /* can't change speed/duplex */
+
+	if (cmd->autoneg == AUTONEG_DISABLE) {
+		int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
+
+		if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
+			return -EINVAL;
+		lc->requested_speed = cmd->speed;
+		lc->requested_duplex = cmd->duplex;
+		lc->advertising = 0;
+	} else {
+		cmd->advertising &= ADVERTISED_MASK;
+		if (cmd->advertising & (cmd->advertising - 1))
+			cmd->advertising = lc->supported;
+		cmd->advertising &= lc->supported;
+		if (!cmd->advertising)
+			return -EINVAL;
+		lc->requested_speed = SPEED_INVALID;
+		lc->requested_duplex = DUPLEX_INVALID;
+		lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
+	}
+	lc->autoneg = cmd->autoneg;
+	if (netif_running(dev))
+		t1_link_start(p->phy, p->mac, lc);
+	return 0;
+}
+
+static void get_pauseparam(struct net_device *dev,
+			   struct ethtool_pauseparam *epause)
+{
+	struct adapter *adapter = dev->priv;
+	struct port_info *p = &adapter->port[dev->if_port];
+
+	epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
+	epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
+	epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
+}
+
+static int set_pauseparam(struct net_device *dev,
+			  struct ethtool_pauseparam *epause)
+{
+	struct adapter *adapter = dev->priv;
+	struct port_info *p = &adapter->port[dev->if_port];
+	struct link_config *lc = &p->link_config;
+
+	if (epause->autoneg == AUTONEG_DISABLE)
+		lc->requested_fc = 0;
+	else if (lc->supported & SUPPORTED_Autoneg)
+		lc->requested_fc = PAUSE_AUTONEG;
+	else
+		return -EINVAL;
+
+	if (epause->rx_pause)
+		lc->requested_fc |= PAUSE_RX;
+	if (epause->tx_pause)
+		lc->requested_fc |= PAUSE_TX;
+	if (lc->autoneg == AUTONEG_ENABLE) {
+		if (netif_running(dev))
+			t1_link_start(p->phy, p->mac, lc);
+	} else {
+		lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
+		if (netif_running(dev))
+			p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
+							 lc->fc);
+	}
+	return 0;
+}
+
+static u32 get_rx_csum(struct net_device *dev)
+{
+	struct adapter *adapter = dev->priv;
+
+	return (adapter->flags & RX_CSUM_ENABLED) != 0;
+}
+
+static int set_rx_csum(struct net_device *dev, u32 data)
+{
+	struct adapter *adapter = dev->priv;
+
+	if (data)
+		adapter->flags |= RX_CSUM_ENABLED;
+	else
+		adapter->flags &= ~RX_CSUM_ENABLED;
+	return 0;
+}
+
+static int set_tso(struct net_device *dev, u32 value)
+{
+	struct adapter *adapter = dev->priv;
+
+	if (!(adapter->flags & TSO_CAPABLE))
+		return value ? -EOPNOTSUPP : 0;
+	return ethtool_op_set_tso(dev, value);
+}
+
+static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+{
+	struct adapter *adapter = dev->priv;
+	int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
+
+	e->rx_max_pending = MAX_RX_BUFFERS;
+	e->rx_mini_max_pending = 0;
+	e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
+	e->tx_max_pending = MAX_CMDQ_ENTRIES;
+
+	e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
+	e->rx_mini_pending = 0;
+	e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
+	e->tx_pending = adapter->params.sge.cmdQ_size[0];
+}
+
+static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+{
+	struct adapter *adapter = dev->priv;
+	int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
+
+	if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
+	    e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
+	    e->tx_pending > MAX_CMDQ_ENTRIES ||
+	    e->rx_pending < MIN_FL_ENTRIES ||
+	    e->rx_jumbo_pending < MIN_FL_ENTRIES ||
+	    e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
+		return -EINVAL;
+
+	if (adapter->flags & FULL_INIT_DONE)
+        return -EBUSY;
+
+	adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
+	adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
+	adapter->params.sge.cmdQ_size[0] = e->tx_pending;
+	adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
+		MAX_CMDQ1_ENTRIES : e->tx_pending;
+	return 0;
+}
+
+static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
+{
+	struct adapter *adapter = dev->priv;
+
+	/*
+	 * If RX coalescing is requested we use NAPI, otherwise interrupts.
+	 * This choice can be made only when all ports and the TOE are off.
+	 */
+	if (adapter->open_device_map == 0)
+		adapter->params.sge.polling = c->use_adaptive_rx_coalesce;
+
+	if (adapter->params.sge.polling) {
+		adapter->params.sge.rx_coalesce_usecs = 0;
+	} else {
+		adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
+	}
+ 	adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
+	adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
+	t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
+	return 0;
+}
+
+static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
+{
+	struct adapter *adapter = dev->priv;
+
+	c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
+	c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
+	c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
+	return 0;
+}
+
+static int get_eeprom_len(struct net_device *dev)
+{
+    return EEPROM_SIZE;
+}
+
+#define EEPROM_MAGIC(ap) \
+	(PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
+
+static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
+		      u8 *data)
+{
+	int i;
+	u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
+	struct adapter *adapter = dev->priv;
+
+	e->magic = EEPROM_MAGIC(adapter);
+	for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
+		t1_seeprom_read(adapter, i, (u32 *)&buf[i]);
+	memcpy(data, buf + e->offset, e->len);
+	return 0;
+}
+
+static struct ethtool_ops t1_ethtool_ops = {
+	.get_settings      = get_settings,
+	.set_settings      = set_settings,
+	.get_drvinfo       = get_drvinfo,
+	.get_msglevel      = get_msglevel,
+	.set_msglevel      = set_msglevel,
+	.get_ringparam     = get_sge_param,
+	.set_ringparam     = set_sge_param,
+	.get_coalesce      = get_coalesce,
+	.set_coalesce      = set_coalesce,
+	.get_eeprom_len    = get_eeprom_len,
+	.get_eeprom        = get_eeprom,
+	.get_pauseparam    = get_pauseparam,
+	.set_pauseparam    = set_pauseparam,
+	.get_rx_csum       = get_rx_csum,
+	.set_rx_csum       = set_rx_csum,
+	.get_tx_csum       = ethtool_op_get_tx_csum,
+	.set_tx_csum       = ethtool_op_set_tx_csum,
+	.get_sg            = ethtool_op_get_sg,
+	.set_sg            = ethtool_op_set_sg,
+	.get_link          = ethtool_op_get_link,
+	.get_strings       = get_strings,
+	.get_stats_count   = get_stats_count,
+	.get_ethtool_stats = get_stats,
+	.get_regs_len      = get_regs_len,
+	.get_regs          = get_regs,
+	.get_tso           = ethtool_op_get_tso,
+	.set_tso           = set_tso,
+};
+
+static void cxgb_proc_cleanup(struct adapter *adapter,
+					struct proc_dir_entry *dir)
+{
+	const char *name;
+	name = adapter->name;
+	remove_proc_entry(name, dir);
+}
+//#define chtoe_setup_toedev(adapter) NULL
+#define update_mtu_tab(adapter)
+#define write_smt_entry(adapter, idx)
+
+static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
+{
+        struct adapter *adapter = dev->priv;
+        struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data;
+
+	switch (cmd) {
+        case SIOCGMIIPHY:
+                data->phy_id = adapter->port[dev->if_port].phy->addr;
+                /* FALLTHRU */
+        case SIOCGMIIREG: {
+		struct cphy *phy = adapter->port[dev->if_port].phy;
+		u32 val;
+
+		if (!phy->mdio_read)
+            return -EOPNOTSUPP;
+		phy->mdio_read(adapter, data->phy_id, 0, data->reg_num & 0x1f,
+			       &val);
+                data->val_out = val;
+                break;
+	}
+        case SIOCSMIIREG: {
+		struct cphy *phy = adapter->port[dev->if_port].phy;
+
+                if (!capable(CAP_NET_ADMIN))
+                    return -EPERM;
+		if (!phy->mdio_write)
+            return -EOPNOTSUPP;
+		phy->mdio_write(adapter, data->phy_id, 0, data->reg_num & 0x1f,
+			        data->val_in);
+                break;
+	}
+
+	default:
+		return -EOPNOTSUPP;
+	}
+	return 0;
+}
+
+static int t1_change_mtu(struct net_device *dev, int new_mtu)
+{
+	int ret;
+	struct adapter *adapter = dev->priv;
+	struct cmac *mac = adapter->port[dev->if_port].mac;
+
+	if (!mac->ops->set_mtu)
+        return -EOPNOTSUPP;
+	if (new_mtu < 68)
+        return -EINVAL;
+	if ((ret = mac->ops->set_mtu(mac, new_mtu)))
+		return ret;
+	dev->mtu = new_mtu;
+	return 0;
+}
+
+static int t1_set_mac_addr(struct net_device *dev, void *p)
+{
+	struct adapter *adapter = dev->priv;
+	struct cmac *mac = adapter->port[dev->if_port].mac;
+	struct sockaddr *addr = p;
+
+	if (!mac->ops->macaddress_set)
+		return -EOPNOTSUPP;
+
+	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+	mac->ops->macaddress_set(mac, dev->dev_addr);
+	return 0;
+}
+
+#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+static void vlan_rx_register(struct net_device *dev,
+				   struct vlan_group *grp)
+{
+	struct adapter *adapter = dev->priv;
+
+	spin_lock_irq(&adapter->async_lock);
+	adapter->vlan_grp = grp;
+	t1_set_vlan_accel(adapter, grp != NULL);
+	spin_unlock_irq(&adapter->async_lock);
+}
+
+static void vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
+{
+	struct adapter *adapter = dev->priv;
+
+	spin_lock_irq(&adapter->async_lock);
+	if (adapter->vlan_grp)
+		adapter->vlan_grp->vlan_devices[vid] = NULL;
+	spin_unlock_irq(&adapter->async_lock);
+}
+#endif
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void t1_netpoll(struct net_device *dev)
+{
+	unsigned long flags;
+	struct adapter *adapter = dev->priv;
+
+	local_irq_save(flags);
+        t1_select_intr_handler(adapter)(adapter->pdev->irq, adapter, NULL);
+	local_irq_restore(flags);
+}
+#endif
+
+/*
+ * Periodic accumulation of MAC statistics.  This is used only if the MAC
+ * does not have any other way to prevent stats counter overflow.
+ */
+static void mac_stats_task(void *data)
+{
+	int i;
+	struct adapter *adapter = data;
+
+	for_each_port(adapter, i) {
+		struct port_info *p = &adapter->port[i];
+
+		if (netif_running(p->dev))
+			p->mac->ops->statistics_update(p->mac,
+						       MAC_STATS_UPDATE_FAST);
+	}
+
+	/* Schedule the next statistics update if any port is active. */
+	spin_lock(&adapter->work_lock);
+	if (adapter->open_device_map & PORT_MASK)
+		schedule_mac_stats_update(adapter,
+					  adapter->params.stats_update_period);
+	spin_unlock(&adapter->work_lock);
+}
+
+/*
+ * Processes elmer0 external interrupts in process context.
+ */
+static void ext_intr_task(void *data)
+{
+	struct adapter *adapter = data;
+
+	elmer0_ext_intr_handler(adapter);
+
+	/* Now reenable external interrupts */
+	spin_lock_irq(&adapter->async_lock);
+	adapter->slow_intr_mask |= F_PL_INTR_EXT;
+	writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
+	writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
+                   adapter->regs + A_PL_ENABLE);
+	spin_unlock_irq(&adapter->async_lock);
+}
+
+/*
+ * Interrupt-context handler for elmer0 external interrupts.
+ */
+void t1_elmer0_ext_intr(struct adapter *adapter)
+{
+	/*
+	 * Schedule a task to handle external interrupts as we require
+	 * a process context.  We disable EXT interrupts in the interim
+	 * and let the task reenable them when it's done.
+	 */
+	adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
+	writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
+                   adapter->regs + A_PL_ENABLE);
+	schedule_work(&adapter->ext_intr_handler_task);
+}
+
+void t1_fatal_err(struct adapter *adapter)
+{
+	if (adapter->flags & FULL_INIT_DONE) {
+		t1_sge_stop(adapter->sge);
+		t1_interrupts_disable(adapter);
+	}
+	CH_ALERT("%s: encountered fatal error, operation suspended\n",
+		 adapter->name);
+}
+
+static int __devinit init_one(struct pci_dev *pdev,
+			      const struct pci_device_id *ent)
+{
+	static int version_printed;
+
+	int i, err, pci_using_dac = 0;
+	unsigned long mmio_start, mmio_len;
+	const struct board_info *bi;
+	struct adapter *adapter = NULL;
+	struct port_info *pi;
+
+	if (!version_printed) {
+		printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
+		       DRV_VERSION);
+		++version_printed;
+	}
+
+	err = pci_enable_device(pdev);
+	if (err)
+        return err;
+
+	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
+		CH_ERR("%s: cannot find PCI device memory base address\n",
+		       pci_name(pdev));
+		err = -ENODEV;
+		goto out_disable_pdev;
+	}
+
+	if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
+		pci_using_dac = 1;
+
+		if (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
+			CH_ERR("%s: unable to obtain 64-bit DMA for"
+			       "consistent allocations\n", pci_name(pdev));
+			err = -ENODEV;
+			goto out_disable_pdev;
+		}
+
+	} else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) {
+		CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev));
+		goto out_disable_pdev;
+	}
+
+	err = pci_request_regions(pdev, DRV_NAME);
+	if (err) {
+		CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev));
+		goto out_disable_pdev;
+	}
+
+	pci_set_master(pdev);
+
+    mmio_start = pci_resource_start(pdev, 0);
+	mmio_len = pci_resource_len(pdev, 0);
+	bi = t1_get_board_info(ent->driver_data);
+
+	for (i = 0; i < bi->port_number; ++i) {
+		struct net_device *netdev;
+
+		netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
+		if (!netdev) {
+			err = -ENOMEM;
+			goto out_free_dev;
+		}
+
+		SET_MODULE_OWNER(netdev);
+		SET_NETDEV_DEV(netdev, &pdev->dev);
+
+		if (!adapter) {
+			adapter = netdev->priv;
+			adapter->pdev = pdev;
+			adapter->port[0].dev = netdev;  /* so we don't leak it */
+
+			adapter->regs = ioremap(mmio_start, mmio_len);
+			if (!adapter->regs) {
+				CH_ERR("%s: cannot map device registers\n",
+				       pci_name(pdev));
+				err = -ENOMEM;
+				goto out_free_dev;
+			}
+
+			if (t1_get_board_rev(adapter, bi, &adapter->params)) {
+				err = -ENODEV;	  /* Can't handle this chip rev */
+				goto out_free_dev;
+			}
+
+			adapter->name = pci_name(pdev);
+			adapter->msg_enable = dflt_msg_enable;
+			adapter->mmio_len = mmio_len;
+
+			init_MUTEX(&adapter->mib_mutex);
+			spin_lock_init(&adapter->tpi_lock);
+			spin_lock_init(&adapter->work_lock);
+			spin_lock_init(&adapter->async_lock);
+
+			INIT_WORK(&adapter->ext_intr_handler_task,
+				  ext_intr_task, adapter);
+			INIT_WORK(&adapter->stats_update_task, mac_stats_task,
+				  adapter);
+#ifdef work_struct
+			init_timer(&adapter->stats_update_timer);
+			adapter->stats_update_timer.function = mac_stats_timer;
+			adapter->stats_update_timer.data =
+				(unsigned long)adapter;
+#endif
+
+			pci_set_drvdata(pdev, netdev);
+		}
+
+		pi = &adapter->port[i];
+		pi->dev = netdev;
+		netif_carrier_off(netdev);
+		netdev->irq = pdev->irq;
+		netdev->if_port = i;
+		netdev->mem_start = mmio_start;
+		netdev->mem_end = mmio_start + mmio_len - 1;
+		netdev->priv = adapter;
+		netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
+		netdev->features |= NETIF_F_LLTX;
+
+		adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE;
+		if (pci_using_dac)
+			netdev->features |= NETIF_F_HIGHDMA;
+		if (vlan_tso_capable(adapter)) {
+#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+			adapter->flags |= VLAN_ACCEL_CAPABLE;
+			netdev->features |=
+				NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+			netdev->vlan_rx_register = vlan_rx_register;
+			netdev->vlan_rx_kill_vid = vlan_rx_kill_vid;
+#endif
+			adapter->flags |= TSO_CAPABLE;
+			netdev->features |= NETIF_F_TSO;
+		}
+
+		netdev->open = cxgb_open;
+		netdev->stop = cxgb_close;
+		netdev->hard_start_xmit = t1_start_xmit;
+		netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ?
+			sizeof(struct cpl_tx_pkt_lso) :
+			sizeof(struct cpl_tx_pkt);
+		netdev->get_stats = t1_get_stats;
+		netdev->set_multicast_list = t1_set_rxmode;
+		netdev->do_ioctl = t1_ioctl;
+		netdev->change_mtu = t1_change_mtu;
+		netdev->set_mac_address = t1_set_mac_addr;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+		netdev->poll_controller = t1_netpoll;
+#endif
+		netdev->weight = 64;
+
+        SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
+	}
+
+	if (t1_init_sw_modules(adapter, bi) < 0) {
+		err = -ENODEV;
+		goto out_free_dev;
+	}
+
+	/*
+	 * The card is now ready to go.  If any errors occur during device
+	 * registration we do not fail the whole card but rather proceed only
+	 * with the ports we manage to register successfully.  However we must
+	 * register at least one net device.
+	 */
+	for (i = 0; i < bi->port_number; ++i) {
+		err = register_netdev(adapter->port[i].dev);
+		if (err)
+			CH_WARN("%s: cannot register net device %s, skipping\n",
+				pci_name(pdev), adapter->port[i].dev->name);
+		else {
+			/*
+			 * Change the name we use for messages to the name of
+			 * the first successfully registered interface.
+			 */
+			if (!adapter->registered_device_map)
+				adapter->name = adapter->port[i].dev->name;
+
+                __set_bit(i, &adapter->registered_device_map);
+		}
+	}
+	if (!adapter->registered_device_map) {
+		CH_ERR("%s: could not register any net devices\n",
+		       pci_name(pdev));
+		goto out_release_adapter_res;
+	}
+
+	printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
+	       bi->desc, adapter->params.chip_revision,
+	       adapter->params.pci.is_pcix ? "PCIX" : "PCI",
+	       adapter->params.pci.speed, adapter->params.pci.width);
+	return 0;
+
+ out_release_adapter_res:
+	t1_free_sw_modules(adapter);
+ out_free_dev:
+	if (adapter) {
+		if (adapter->regs) iounmap(adapter->regs);
+		for (i = bi->port_number - 1; i >= 0; --i)
+			if (adapter->port[i].dev) {
+				cxgb_proc_cleanup(adapter, proc_root_driver);
+				kfree(adapter->port[i].dev);
+			}
+	}
+	pci_release_regions(pdev);
+ out_disable_pdev:
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+	return err;
+}
+
+static inline void t1_sw_reset(struct pci_dev *pdev)
+{
+	pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
+	pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
+}
+
+static void __devexit remove_one(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+
+	if (dev) {
+		int i;
+		struct adapter *adapter = dev->priv;
+
+		for_each_port(adapter, i)
+			if (test_bit(i, &adapter->registered_device_map))
+				unregister_netdev(adapter->port[i].dev);
+
+		t1_free_sw_modules(adapter);
+		iounmap(adapter->regs);
+		while (--i >= 0)
+			if (adapter->port[i].dev) {
+				cxgb_proc_cleanup(adapter, proc_root_driver);
+				kfree(adapter->port[i].dev);
+			}
+		pci_release_regions(pdev);
+		pci_disable_device(pdev);
+		pci_set_drvdata(pdev, NULL);
+		t1_sw_reset(pdev);
+	}
+}
+
+static struct pci_driver driver = {
+	.name     = DRV_NAME,
+	.id_table = t1_pci_tbl,
+	.probe    = init_one,
+	.remove   = __devexit_p(remove_one),
+};
+
+static int __init t1_init_module(void)
+{
+	return pci_module_init(&driver);
+}
+
+static void __exit t1_cleanup_module(void)
+{
+	pci_unregister_driver(&driver);
+}
+
+module_init(t1_init_module);
+module_exit(t1_cleanup_module);
diff --git a/drivers/net/chelsio/elmer0.h b/drivers/net/chelsio/elmer0.h
new file mode 100644
index 000000000000..5590cb2dac19
--- /dev/null
+++ b/drivers/net/chelsio/elmer0.h
@@ -0,0 +1,151 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: elmer0.h                                                            *
+ * $Revision: 1.6 $                                                          *
+ * $Date: 2005/06/21 22:49:43 $                                              *
+ * Description:                                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_ELMER0_H_
+#define _CXGB_ELMER0_H_
+
+/* ELMER0 registers */
+#define A_ELMER0_VERSION 0x100000
+#define A_ELMER0_PHY_CFG 0x100004
+#define A_ELMER0_INT_ENABLE 0x100008
+#define A_ELMER0_INT_CAUSE 0x10000c
+#define A_ELMER0_GPI_CFG 0x100010
+#define A_ELMER0_GPI_STAT 0x100014
+#define A_ELMER0_GPO 0x100018
+#define A_ELMER0_PORT0_MI1_CFG 0x400000
+
+#define S_MI1_MDI_ENABLE    0
+#define V_MI1_MDI_ENABLE(x) ((x) << S_MI1_MDI_ENABLE)
+#define F_MI1_MDI_ENABLE    V_MI1_MDI_ENABLE(1U)
+
+#define S_MI1_MDI_INVERT    1
+#define V_MI1_MDI_INVERT(x) ((x) << S_MI1_MDI_INVERT)
+#define F_MI1_MDI_INVERT    V_MI1_MDI_INVERT(1U)
+
+#define S_MI1_PREAMBLE_ENABLE    2
+#define V_MI1_PREAMBLE_ENABLE(x) ((x) << S_MI1_PREAMBLE_ENABLE)
+#define F_MI1_PREAMBLE_ENABLE    V_MI1_PREAMBLE_ENABLE(1U)
+
+#define S_MI1_SOF    3
+#define M_MI1_SOF    0x3
+#define V_MI1_SOF(x) ((x) << S_MI1_SOF)
+#define G_MI1_SOF(x) (((x) >> S_MI1_SOF) & M_MI1_SOF)
+
+#define S_MI1_CLK_DIV    5
+#define M_MI1_CLK_DIV    0xff
+#define V_MI1_CLK_DIV(x) ((x) << S_MI1_CLK_DIV)
+#define G_MI1_CLK_DIV(x) (((x) >> S_MI1_CLK_DIV) & M_MI1_CLK_DIV)
+
+#define A_ELMER0_PORT0_MI1_ADDR 0x400004
+
+#define S_MI1_REG_ADDR    0
+#define M_MI1_REG_ADDR    0x1f
+#define V_MI1_REG_ADDR(x) ((x) << S_MI1_REG_ADDR)
+#define G_MI1_REG_ADDR(x) (((x) >> S_MI1_REG_ADDR) & M_MI1_REG_ADDR)
+
+#define S_MI1_PHY_ADDR    5
+#define M_MI1_PHY_ADDR    0x1f
+#define V_MI1_PHY_ADDR(x) ((x) << S_MI1_PHY_ADDR)
+#define G_MI1_PHY_ADDR(x) (((x) >> S_MI1_PHY_ADDR) & M_MI1_PHY_ADDR)
+
+#define A_ELMER0_PORT0_MI1_DATA 0x400008
+
+#define S_MI1_DATA    0
+#define M_MI1_DATA    0xffff
+#define V_MI1_DATA(x) ((x) << S_MI1_DATA)
+#define G_MI1_DATA(x) (((x) >> S_MI1_DATA) & M_MI1_DATA)
+
+#define A_ELMER0_PORT0_MI1_OP 0x40000c
+
+#define S_MI1_OP    0
+#define M_MI1_OP    0x3
+#define V_MI1_OP(x) ((x) << S_MI1_OP)
+#define G_MI1_OP(x) (((x) >> S_MI1_OP) & M_MI1_OP)
+
+#define S_MI1_ADDR_AUTOINC    2
+#define V_MI1_ADDR_AUTOINC(x) ((x) << S_MI1_ADDR_AUTOINC)
+#define F_MI1_ADDR_AUTOINC    V_MI1_ADDR_AUTOINC(1U)
+
+#define S_MI1_OP_BUSY    31
+#define V_MI1_OP_BUSY(x) ((x) << S_MI1_OP_BUSY)
+#define F_MI1_OP_BUSY    V_MI1_OP_BUSY(1U)
+
+#define A_ELMER0_PORT1_MI1_CFG 0x500000
+#define A_ELMER0_PORT1_MI1_ADDR 0x500004
+#define A_ELMER0_PORT1_MI1_DATA 0x500008
+#define A_ELMER0_PORT1_MI1_OP 0x50000c
+#define A_ELMER0_PORT2_MI1_CFG 0x600000
+#define A_ELMER0_PORT2_MI1_ADDR 0x600004
+#define A_ELMER0_PORT2_MI1_DATA 0x600008
+#define A_ELMER0_PORT2_MI1_OP 0x60000c
+#define A_ELMER0_PORT3_MI1_CFG 0x700000
+#define A_ELMER0_PORT3_MI1_ADDR 0x700004
+#define A_ELMER0_PORT3_MI1_DATA 0x700008
+#define A_ELMER0_PORT3_MI1_OP 0x70000c
+
+/* Simple bit definition for GPI and GP0 registers. */
+#define     ELMER0_GP_BIT0              0x0001
+#define     ELMER0_GP_BIT1              0x0002
+#define     ELMER0_GP_BIT2              0x0004
+#define     ELMER0_GP_BIT3              0x0008
+#define     ELMER0_GP_BIT4              0x0010
+#define     ELMER0_GP_BIT5              0x0020
+#define     ELMER0_GP_BIT6              0x0040
+#define     ELMER0_GP_BIT7              0x0080
+#define     ELMER0_GP_BIT8              0x0100
+#define     ELMER0_GP_BIT9              0x0200
+#define     ELMER0_GP_BIT10             0x0400
+#define     ELMER0_GP_BIT11             0x0800
+#define     ELMER0_GP_BIT12             0x1000
+#define     ELMER0_GP_BIT13             0x2000
+#define     ELMER0_GP_BIT14             0x4000
+#define     ELMER0_GP_BIT15             0x8000
+#define     ELMER0_GP_BIT16             0x10000
+#define     ELMER0_GP_BIT17             0x20000
+#define     ELMER0_GP_BIT18             0x40000
+#define     ELMER0_GP_BIT19             0x80000
+
+#define MI1_OP_DIRECT_WRITE 1
+#define MI1_OP_DIRECT_READ  2
+
+#define MI1_OP_INDIRECT_ADDRESS  0
+#define MI1_OP_INDIRECT_WRITE    1
+#define MI1_OP_INDIRECT_READ_INC 2
+#define MI1_OP_INDIRECT_READ     3
+
+#endif /* _CXGB_ELMER0_H_ */
diff --git a/drivers/net/chelsio/espi.c b/drivers/net/chelsio/espi.c
new file mode 100644
index 000000000000..230642571c92
--- /dev/null
+++ b/drivers/net/chelsio/espi.c
@@ -0,0 +1,346 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: espi.c                                                              *
+ * $Revision: 1.14 $                                                         *
+ * $Date: 2005/05/14 00:59:32 $                                              *
+ * Description:                                                              *
+ *  Ethernet SPI functionality.                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#include "common.h"
+#include "regs.h"
+#include "espi.h"
+
+struct peespi {
+	adapter_t *adapter;
+	struct espi_intr_counts intr_cnt;
+	u32 misc_ctrl;
+	spinlock_t lock;
+};
+
+#define ESPI_INTR_MASK (F_DIP4ERR | F_RXDROP | F_TXDROP | F_RXOVERFLOW | \
+			F_RAMPARITYERR | F_DIP2PARITYERR)
+#define MON_MASK  (V_MONITORED_PORT_NUM(3) | F_MONITORED_DIRECTION \
+		   | F_MONITORED_INTERFACE)
+
+#define TRICN_CNFG 14
+#define TRICN_CMD_READ  0x11
+#define TRICN_CMD_WRITE 0x21
+#define TRICN_CMD_ATTEMPTS 10
+
+static int tricn_write(adapter_t *adapter, int bundle_addr, int module_addr,
+		       int ch_addr, int reg_offset, u32 wr_data)
+{
+	int busy, attempts = TRICN_CMD_ATTEMPTS;
+
+	writel(V_WRITE_DATA(wr_data) |
+	       V_REGISTER_OFFSET(reg_offset) |
+	       V_CHANNEL_ADDR(ch_addr) | V_MODULE_ADDR(module_addr) |
+	       V_BUNDLE_ADDR(bundle_addr) |
+	       V_SPI4_COMMAND(TRICN_CMD_WRITE),
+	       adapter->regs + A_ESPI_CMD_ADDR);
+	writel(0, adapter->regs + A_ESPI_GOSTAT);
+
+	do {
+		busy = readl(adapter->regs + A_ESPI_GOSTAT) & F_ESPI_CMD_BUSY;
+	} while (busy && --attempts);
+
+	if (busy)
+		CH_ERR("%s: TRICN write timed out\n", adapter->name);
+
+	return busy;
+}
+
+/* 1. Deassert rx_reset_core. */
+/* 2. Program TRICN_CNFG registers. */
+/* 3. Deassert rx_reset_link */
+static int tricn_init(adapter_t *adapter)
+{
+	int     i               = 0;
+	int     sme             = 1;
+	int     stat            = 0;
+	int     timeout         = 0;
+	int     is_ready        = 0;
+	int     dynamic_deskew  = 0;
+
+	if (dynamic_deskew)
+		sme = 0;
+
+
+	/* 1 */
+	timeout=1000;
+	do {
+		stat = readl(adapter->regs + A_ESPI_RX_RESET);
+		is_ready = (stat & 0x4);
+		timeout--;
+		udelay(5);
+	} while (!is_ready || (timeout==0));
+	writel(0x2, adapter->regs + A_ESPI_RX_RESET);
+	if (timeout==0)
+	{
+		CH_ERR("ESPI : ERROR : Timeout tricn_init() \n");
+		t1_fatal_err(adapter);
+	}
+
+	/* 2 */
+	if (sme) {
+		tricn_write(adapter, 0, 0, 0, TRICN_CNFG, 0x81);
+		tricn_write(adapter, 0, 1, 0, TRICN_CNFG, 0x81);
+		tricn_write(adapter, 0, 2, 0, TRICN_CNFG, 0x81);
+	}
+	for (i=1; i<= 8; i++) tricn_write(adapter, 0, 0, i, TRICN_CNFG, 0xf1);
+	for (i=1; i<= 2; i++) tricn_write(adapter, 0, 1, i, TRICN_CNFG, 0xf1);
+	for (i=1; i<= 3; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xe1);
+	for (i=4; i<= 4; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1);
+	for (i=5; i<= 5; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xe1);
+	for (i=6; i<= 6; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1);
+	for (i=7; i<= 7; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0x80);
+	for (i=8; i<= 8; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1);
+
+	/* 3 */
+	writel(0x3, adapter->regs + A_ESPI_RX_RESET);
+
+	return 0;
+}
+
+void t1_espi_intr_enable(struct peespi *espi)
+{
+	u32 enable, pl_intr = readl(espi->adapter->regs + A_PL_ENABLE);
+
+	/*
+	 * Cannot enable ESPI interrupts on T1B because HW asserts the
+	 * interrupt incorrectly, namely the driver gets ESPI interrupts
+	 * but no data is actually dropped (can verify this reading the ESPI
+	 * drop registers).  Also, once the ESPI interrupt is asserted it
+	 * cannot be cleared (HW bug).
+	 */
+	enable = t1_is_T1B(espi->adapter) ? 0 : ESPI_INTR_MASK;
+	writel(enable, espi->adapter->regs + A_ESPI_INTR_ENABLE);
+	writel(pl_intr | F_PL_INTR_ESPI, espi->adapter->regs + A_PL_ENABLE);
+}
+
+void t1_espi_intr_clear(struct peespi *espi)
+{
+	writel(0xffffffff, espi->adapter->regs + A_ESPI_INTR_STATUS);
+	writel(F_PL_INTR_ESPI, espi->adapter->regs + A_PL_CAUSE);
+}
+
+void t1_espi_intr_disable(struct peespi *espi)
+{
+	u32 pl_intr = readl(espi->adapter->regs + A_PL_ENABLE);
+
+	writel(0, espi->adapter->regs + A_ESPI_INTR_ENABLE);
+	writel(pl_intr & ~F_PL_INTR_ESPI, espi->adapter->regs + A_PL_ENABLE);
+}
+
+int t1_espi_intr_handler(struct peespi *espi)
+{
+	u32 cnt;
+	u32 status = readl(espi->adapter->regs + A_ESPI_INTR_STATUS);
+
+	if (status & F_DIP4ERR)
+		espi->intr_cnt.DIP4_err++;
+	if (status & F_RXDROP)
+		espi->intr_cnt.rx_drops++;
+	if (status & F_TXDROP)
+		espi->intr_cnt.tx_drops++;
+	if (status & F_RXOVERFLOW)
+		espi->intr_cnt.rx_ovflw++;
+	if (status & F_RAMPARITYERR)
+		espi->intr_cnt.parity_err++;
+	if (status & F_DIP2PARITYERR) {
+		espi->intr_cnt.DIP2_parity_err++;
+
+		/*
+		 * Must read the error count to clear the interrupt
+		 * that it causes.
+		 */
+		cnt = readl(espi->adapter->regs + A_ESPI_DIP2_ERR_COUNT);
+	}
+
+	/*
+	 * For T1B we need to write 1 to clear ESPI interrupts.  For T2+ we
+	 * write the status as is.
+	 */
+	if (status && t1_is_T1B(espi->adapter))
+		status = 1;
+	writel(status, espi->adapter->regs + A_ESPI_INTR_STATUS);
+	return 0;
+}
+
+const struct espi_intr_counts *t1_espi_get_intr_counts(struct peespi *espi)
+{
+    return &espi->intr_cnt;
+}
+
+static void espi_setup_for_pm3393(adapter_t *adapter)
+{
+	u32 wmark = t1_is_T1B(adapter) ? 0x4000 : 0x3200;
+
+	writel(0x1f4, adapter->regs + A_ESPI_SCH_TOKEN0);
+	writel(0x1f4, adapter->regs + A_ESPI_SCH_TOKEN1);
+	writel(0x1f4, adapter->regs + A_ESPI_SCH_TOKEN2);
+	writel(0x1f4, adapter->regs + A_ESPI_SCH_TOKEN3);
+	writel(0x100, adapter->regs + A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK);
+	writel(wmark, adapter->regs + A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK);
+	writel(3, adapter->regs + A_ESPI_CALENDAR_LENGTH);
+	writel(0x08000008, adapter->regs + A_ESPI_TRAIN);
+	writel(V_RX_NPORTS(1) | V_TX_NPORTS(1), adapter->regs + A_PORT_CONFIG);
+}
+
+/* T2 Init part --  */
+/* 1. Set T_ESPI_MISCCTRL_ADDR */
+/* 2. Init ESPI registers. */
+/* 3. Init TriCN Hard Macro */
+int t1_espi_init(struct peespi *espi, int mac_type, int nports)
+{
+	u32 cnt;
+
+	u32 status_enable_extra = 0;
+	adapter_t *adapter = espi->adapter;
+	u32 status, burstval = 0x800100;
+
+	/* Disable ESPI training.  MACs that can handle it enable it below. */
+	writel(0, adapter->regs + A_ESPI_TRAIN);
+
+	if (is_T2(adapter)) {
+		writel(V_OUT_OF_SYNC_COUNT(4) |
+		       V_DIP2_PARITY_ERR_THRES(3) |
+		       V_DIP4_THRES(1), adapter->regs + A_ESPI_MISC_CONTROL);
+		if (nports == 4) {
+			/* T204: maxburst1 = 0x40, maxburst2 = 0x20 */
+			burstval = 0x200040;
+		}
+	}
+	writel(burstval, adapter->regs + A_ESPI_MAXBURST1_MAXBURST2);
+
+	switch (mac_type) {
+	case CHBT_MAC_PM3393:
+		espi_setup_for_pm3393(adapter);
+		break;
+	default:
+		return -1;
+	}
+
+	/*
+	 * Make sure any pending interrupts from the SPI are
+	 * Cleared before enabling the interrupt.
+	 */
+	writel(ESPI_INTR_MASK, espi->adapter->regs + A_ESPI_INTR_ENABLE);
+	status = readl(espi->adapter->regs + A_ESPI_INTR_STATUS);
+	if (status & F_DIP2PARITYERR) {
+		cnt = readl(espi->adapter->regs + A_ESPI_DIP2_ERR_COUNT);
+	}
+
+	/*
+	 * For T1B we need to write 1 to clear ESPI interrupts.  For T2+ we
+	 * write the status as is.
+	 */
+	if (status && t1_is_T1B(espi->adapter))
+		status = 1;
+	writel(status, espi->adapter->regs + A_ESPI_INTR_STATUS);
+
+	writel(status_enable_extra | F_RXSTATUSENABLE,
+	       adapter->regs + A_ESPI_FIFO_STATUS_ENABLE);
+
+	if (is_T2(adapter)) {
+		tricn_init(adapter);
+		/*
+		 * Always position the control at the 1st port egress IN
+		 * (sop,eop) counter to reduce PIOs for T/N210 workaround.
+		 */
+		espi->misc_ctrl = (readl(adapter->regs + A_ESPI_MISC_CONTROL)
+				   & ~MON_MASK) | (F_MONITORED_DIRECTION
+				   | F_MONITORED_INTERFACE);
+		writel(espi->misc_ctrl, adapter->regs + A_ESPI_MISC_CONTROL);
+		spin_lock_init(&espi->lock);
+	}
+
+	return 0;
+}
+
+void t1_espi_destroy(struct peespi *espi)
+{
+	kfree(espi);
+}
+
+struct peespi *t1_espi_create(adapter_t *adapter)
+{
+	struct peespi *espi = kmalloc(sizeof(*espi), GFP_KERNEL);
+
+	memset(espi, 0, sizeof(*espi));
+
+	if (espi)
+		espi->adapter = adapter;
+	return espi;
+}
+
+void t1_espi_set_misc_ctrl(adapter_t *adapter, u32 val)
+{
+	struct peespi *espi = adapter->espi;
+
+	if (!is_T2(adapter))
+		return;
+	spin_lock(&espi->lock);
+	espi->misc_ctrl = (val & ~MON_MASK) |
+			  (espi->misc_ctrl & MON_MASK);
+	writel(espi->misc_ctrl, adapter->regs + A_ESPI_MISC_CONTROL);
+	spin_unlock(&espi->lock);
+}
+
+u32 t1_espi_get_mon(adapter_t *adapter, u32 addr, u8 wait)
+{
+	u32 sel;
+
+	struct peespi *espi = adapter->espi;
+
+	if (!is_T2(adapter))
+		return 0;
+	sel = V_MONITORED_PORT_NUM((addr & 0x3c) >> 2);
+	if (!wait) {
+		if (!spin_trylock(&espi->lock))
+			return 0;
+	}
+	else
+		spin_lock(&espi->lock);
+	if ((sel != (espi->misc_ctrl & MON_MASK))) {
+		writel(((espi->misc_ctrl & ~MON_MASK) | sel),
+		       adapter->regs + A_ESPI_MISC_CONTROL);
+		sel = readl(adapter->regs + A_ESPI_SCH_TOKEN3);
+		writel(espi->misc_ctrl, adapter->regs + A_ESPI_MISC_CONTROL);
+	}
+	else
+		sel = readl(adapter->regs + A_ESPI_SCH_TOKEN3);
+	spin_unlock(&espi->lock);
+	return sel;
+}
diff --git a/drivers/net/chelsio/espi.h b/drivers/net/chelsio/espi.h
new file mode 100644
index 000000000000..c90e37f8457c
--- /dev/null
+++ b/drivers/net/chelsio/espi.h
@@ -0,0 +1,68 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: espi.h                                                              *
+ * $Revision: 1.7 $                                                          *
+ * $Date: 2005/06/21 18:29:47 $                                              *
+ * Description:                                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_ESPI_H_
+#define _CXGB_ESPI_H_
+
+#include "common.h"
+
+struct espi_intr_counts {
+	unsigned int DIP4_err;
+	unsigned int rx_drops;
+	unsigned int tx_drops;
+	unsigned int rx_ovflw;
+	unsigned int parity_err;
+	unsigned int DIP2_parity_err;
+};
+
+struct peespi;
+
+struct peespi *t1_espi_create(adapter_t *adapter);
+void t1_espi_destroy(struct peespi *espi);
+int t1_espi_init(struct peespi *espi, int mac_type, int nports);
+
+void t1_espi_intr_enable(struct peespi *);
+void t1_espi_intr_clear(struct peespi *);
+void t1_espi_intr_disable(struct peespi *);
+int t1_espi_intr_handler(struct peespi *);
+const struct espi_intr_counts *t1_espi_get_intr_counts(struct peespi *espi);
+
+void t1_espi_set_misc_ctrl(adapter_t *adapter, u32 val);
+u32 t1_espi_get_mon(adapter_t *adapter, u32 addr, u8 wait);
+
+#endif /* _CXGB_ESPI_H_ */
diff --git a/drivers/net/chelsio/gmac.h b/drivers/net/chelsio/gmac.h
new file mode 100644
index 000000000000..746b0eeea964
--- /dev/null
+++ b/drivers/net/chelsio/gmac.h
@@ -0,0 +1,134 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: gmac.h                                                              *
+ * $Revision: 1.6 $                                                          *
+ * $Date: 2005/06/21 18:29:47 $                                              *
+ * Description:                                                              *
+ *  Generic MAC functionality.                                               *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_GMAC_H_
+#define _CXGB_GMAC_H_
+
+#include "common.h"
+
+enum { MAC_STATS_UPDATE_FAST, MAC_STATS_UPDATE_FULL };
+enum { MAC_DIRECTION_RX = 1, MAC_DIRECTION_TX = 2 };
+
+struct cmac_statistics {
+	/* Transmit */
+	u64 TxOctetsOK;
+	u64 TxOctetsBad;
+	u64 TxUnicastFramesOK;
+	u64 TxMulticastFramesOK;
+	u64 TxBroadcastFramesOK;
+	u64 TxPauseFrames;
+	u64 TxFramesWithDeferredXmissions;
+	u64 TxLateCollisions;
+	u64 TxTotalCollisions;
+	u64 TxFramesAbortedDueToXSCollisions;
+	u64 TxUnderrun;
+	u64 TxLengthErrors;
+	u64 TxInternalMACXmitError;
+	u64 TxFramesWithExcessiveDeferral;
+	u64 TxFCSErrors;
+
+	/* Receive */
+	u64 RxOctetsOK;
+	u64 RxOctetsBad;
+	u64 RxUnicastFramesOK;
+	u64 RxMulticastFramesOK;
+	u64 RxBroadcastFramesOK;
+	u64 RxPauseFrames;
+	u64 RxFCSErrors;
+	u64 RxAlignErrors;
+	u64 RxSymbolErrors;
+	u64 RxDataErrors;
+	u64 RxSequenceErrors;
+	u64 RxRuntErrors;
+	u64 RxJabberErrors;
+	u64 RxInternalMACRcvError;
+	u64 RxInRangeLengthErrors;
+	u64 RxOutOfRangeLengthField;
+	u64 RxFrameTooLongErrors;
+};
+
+struct cmac_ops {
+	void (*destroy)(struct cmac *);
+	int (*reset)(struct cmac *);
+	int (*interrupt_enable)(struct cmac *);
+	int (*interrupt_disable)(struct cmac *);
+	int (*interrupt_clear)(struct cmac *);
+	int (*interrupt_handler)(struct cmac *);
+
+	int (*enable)(struct cmac *, int);
+	int (*disable)(struct cmac *, int);
+
+	int (*loopback_enable)(struct cmac *);
+	int (*loopback_disable)(struct cmac *);
+
+	int (*set_mtu)(struct cmac *, int mtu);
+	int (*set_rx_mode)(struct cmac *, struct t1_rx_mode *rm);
+
+	int (*set_speed_duplex_fc)(struct cmac *, int speed, int duplex, int fc);
+	int (*get_speed_duplex_fc)(struct cmac *, int *speed, int *duplex,
+				   int *fc);
+
+	const struct cmac_statistics *(*statistics_update)(struct cmac *, int);
+
+	int (*macaddress_get)(struct cmac *, u8 mac_addr[6]);
+	int (*macaddress_set)(struct cmac *, u8 mac_addr[6]);
+};
+
+typedef struct _cmac_instance cmac_instance;
+
+struct cmac {
+	struct cmac_statistics stats;
+	adapter_t *adapter;
+	struct cmac_ops *ops;
+	cmac_instance *instance;
+};
+
+struct gmac {
+	unsigned int stats_update_period;
+	struct cmac *(*create)(adapter_t *adapter, int index);
+	int (*reset)(adapter_t *);
+};
+
+extern struct gmac t1_pm3393_ops;
+extern struct gmac t1_chelsio_mac_ops;
+extern struct gmac t1_vsc7321_ops;
+extern struct gmac t1_ixf1010_ops;
+extern struct gmac t1_dummy_mac_ops;
+
+#endif /* _CXGB_GMAC_H_ */
diff --git a/drivers/net/chelsio/mv88x201x.c b/drivers/net/chelsio/mv88x201x.c
new file mode 100644
index 000000000000..db5034282782
--- /dev/null
+++ b/drivers/net/chelsio/mv88x201x.c
@@ -0,0 +1,252 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: mv88x201x.c                                                         *
+ * $Revision: 1.12 $                                                         *
+ * $Date: 2005/04/15 19:27:14 $                                              *
+ * Description:                                                              *
+ *  Marvell PHY (mv88x201x) functionality.                                   *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#include "cphy.h"
+#include "elmer0.h"
+
+/*
+ * The 88x2010 Rev C. requires some link status registers * to be read
+ * twice in order to get the right values. Future * revisions will fix
+ * this problem and then this macro * can disappear.
+ */
+#define MV88x2010_LINK_STATUS_BUGS    1
+
+static int led_init(struct cphy *cphy)
+{
+	/* Setup the LED registers so we can turn on/off.
+	 * Writing these bits maps control to another
+	 * register. mmd(0x1) addr(0x7)
+	 */
+	mdio_write(cphy, 0x3, 0x8304, 0xdddd);
+	return 0;
+}
+
+static int led_link(struct cphy *cphy, u32 do_enable)
+{
+	u32 led = 0;
+#define LINK_ENABLE_BIT 0x1
+
+	mdio_read(cphy, 0x1, 0x7, &led);
+
+	if (do_enable & LINK_ENABLE_BIT) {
+		led |= LINK_ENABLE_BIT;
+		mdio_write(cphy, 0x1, 0x7, led);
+	} else {
+		led &= ~LINK_ENABLE_BIT;
+		mdio_write(cphy, 0x1, 0x7, led);
+	}
+	return 0;
+}
+
+/* Port Reset */
+static int mv88x201x_reset(struct cphy *cphy, int wait)
+{
+	/* This can be done through registers.  It is not required since
+	 * a full chip reset is used.
+	 */
+	return 0;
+}
+
+static int mv88x201x_interrupt_enable(struct cphy *cphy)
+{
+	u32 elmer;
+
+	/* Enable PHY LASI interrupts. */
+	mdio_write(cphy, 0x1, 0x9002, 0x1);
+
+	/* Enable Marvell interrupts through Elmer0. */
+	t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer);
+	elmer |= ELMER0_GP_BIT6;
+	t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer);
+	return 0;
+}
+
+static int mv88x201x_interrupt_disable(struct cphy *cphy)
+{
+	u32 elmer;
+
+	/* Disable PHY LASI interrupts. */
+	mdio_write(cphy, 0x1, 0x9002, 0x0);
+
+	/* Disable Marvell interrupts through Elmer0. */
+	t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer);
+	elmer &= ~ELMER0_GP_BIT6;
+	t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer);
+	return 0;
+}
+
+static int mv88x201x_interrupt_clear(struct cphy *cphy)
+{
+	u32 elmer;
+	u32 val;
+
+#ifdef MV88x2010_LINK_STATUS_BUGS
+	/* Required to read twice before clear takes affect. */
+	mdio_read(cphy, 0x1, 0x9003, &val);
+	mdio_read(cphy, 0x1, 0x9004, &val);
+	mdio_read(cphy, 0x1, 0x9005, &val);
+
+	/* Read this register after the others above it else
+	 * the register doesn't clear correctly.
+	 */
+	mdio_read(cphy, 0x1, 0x1, &val);
+#endif
+
+	/* Clear link status. */
+	mdio_read(cphy, 0x1, 0x1, &val);
+	/* Clear PHY LASI interrupts. */
+	mdio_read(cphy, 0x1, 0x9005, &val);
+
+#ifdef MV88x2010_LINK_STATUS_BUGS
+	/* Do it again. */
+	mdio_read(cphy, 0x1, 0x9003, &val);
+	mdio_read(cphy, 0x1, 0x9004, &val);
+#endif
+
+	/* Clear Marvell interrupts through Elmer0. */
+	t1_tpi_read(cphy->adapter, A_ELMER0_INT_CAUSE, &elmer);
+	elmer |= ELMER0_GP_BIT6;
+	t1_tpi_write(cphy->adapter, A_ELMER0_INT_CAUSE, elmer);
+	return 0;
+}
+
+static int mv88x201x_interrupt_handler(struct cphy *cphy)
+{
+	/* Clear interrupts */
+	mv88x201x_interrupt_clear(cphy);
+
+	/* We have only enabled link change interrupts and so
+	 * cphy_cause must be a link change interrupt.
+	 */
+	return cphy_cause_link_change;
+}
+
+static int mv88x201x_set_loopback(struct cphy *cphy, int on)
+{
+	return 0;
+}
+
+static int mv88x201x_get_link_status(struct cphy *cphy, int *link_ok,
+				     int *speed, int *duplex, int *fc)
+{
+	u32 val = 0;
+#define LINK_STATUS_BIT 0x4
+
+	if (link_ok) {
+		/* Read link status. */
+		mdio_read(cphy, 0x1, 0x1, &val);
+		val &= LINK_STATUS_BIT;
+		*link_ok = (val == LINK_STATUS_BIT);
+		/* Turn on/off Link LED */
+		led_link(cphy, *link_ok);
+	}
+	if (speed)
+		*speed = SPEED_10000;
+	if (duplex)
+		*duplex = DUPLEX_FULL;
+	if (fc)
+		*fc = PAUSE_RX | PAUSE_TX;
+	return 0;
+}
+
+static void mv88x201x_destroy(struct cphy *cphy)
+{
+	kfree(cphy);
+}
+
+static struct cphy_ops mv88x201x_ops = {
+	.destroy           = mv88x201x_destroy,
+	.reset             = mv88x201x_reset,
+	.interrupt_enable  = mv88x201x_interrupt_enable,
+	.interrupt_disable = mv88x201x_interrupt_disable,
+	.interrupt_clear   = mv88x201x_interrupt_clear,
+	.interrupt_handler = mv88x201x_interrupt_handler,
+	.get_link_status   = mv88x201x_get_link_status,
+	.set_loopback      = mv88x201x_set_loopback,
+};
+
+static struct cphy *mv88x201x_phy_create(adapter_t *adapter, int phy_addr,
+					 struct mdio_ops *mdio_ops)
+{
+	u32 val;
+	struct cphy *cphy = kmalloc(sizeof(*cphy), GFP_KERNEL);
+
+	if (!cphy)
+		return NULL;
+	memset(cphy, 0, sizeof(*cphy));
+	cphy_init(cphy, adapter, phy_addr, &mv88x201x_ops, mdio_ops);
+
+	/* Commands the PHY to enable XFP's clock. */
+	mdio_read(cphy, 0x3, 0x8300, &val);
+	mdio_write(cphy, 0x3, 0x8300, val | 1);
+
+	/* Clear link status. Required because of a bug in the PHY.  */
+	mdio_read(cphy, 0x1, 0x8, &val);
+	mdio_read(cphy, 0x3, 0x8, &val);
+
+	/* Allows for Link,Ack LED turn on/off */
+	led_init(cphy);
+	return cphy;
+}
+
+/* Chip Reset */
+static int mv88x201x_phy_reset(adapter_t *adapter)
+{
+	u32 val;
+
+	t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+	val &= ~4;
+	t1_tpi_write(adapter, A_ELMER0_GPO, val);
+	msleep(100);
+
+	t1_tpi_write(adapter, A_ELMER0_GPO, val | 4);
+	msleep(1000);
+
+	/* Now lets enable the Laser. Delay 100us */
+	t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+	val |= 0x8000;
+	t1_tpi_write(adapter, A_ELMER0_GPO, val);
+	udelay(100);
+	return 0;
+}
+
+struct gphy t1_mv88x201x_ops = {
+	mv88x201x_phy_create,
+	mv88x201x_phy_reset
+};
diff --git a/drivers/net/chelsio/pm3393.c b/drivers/net/chelsio/pm3393.c
new file mode 100644
index 000000000000..04a1404fc65e
--- /dev/null
+++ b/drivers/net/chelsio/pm3393.c
@@ -0,0 +1,826 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: pm3393.c                                                            *
+ * $Revision: 1.16 $                                                         *
+ * $Date: 2005/05/14 00:59:32 $                                              *
+ * Description:                                                              *
+ *  PMC/SIERRA (pm3393) MAC-PHY functionality.                               *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#include "common.h"
+#include "regs.h"
+#include "gmac.h"
+#include "elmer0.h"
+#include "suni1x10gexp_regs.h"
+
+/* 802.3ae 10Gb/s MDIO Manageable Device(MMD)
+ */
+enum {
+    MMD_RESERVED,
+    MMD_PMAPMD,
+    MMD_WIS,
+    MMD_PCS,
+    MMD_PHY_XGXS,	/* XGMII Extender Sublayer */
+    MMD_DTE_XGXS,
+};
+
+enum {
+    PHY_XGXS_CTRL_1,
+    PHY_XGXS_STATUS_1
+};
+
+#define OFFSET(REG_ADDR)    (REG_ADDR << 2)
+
+/* Max frame size PM3393 can handle. Includes Ethernet header and CRC. */
+#define MAX_FRAME_SIZE  9600
+
+#define IPG 12
+#define TXXG_CONF1_VAL ((IPG << SUNI1x10GEXP_BITOFF_TXXG_IPGT) | \
+	SUNI1x10GEXP_BITMSK_TXXG_32BIT_ALIGN | SUNI1x10GEXP_BITMSK_TXXG_CRCEN | \
+	SUNI1x10GEXP_BITMSK_TXXG_PADEN)
+#define RXXG_CONF1_VAL (SUNI1x10GEXP_BITMSK_RXXG_PUREP | 0x14 | \
+	SUNI1x10GEXP_BITMSK_RXXG_FLCHK | SUNI1x10GEXP_BITMSK_RXXG_CRC_STRIP)
+
+/* Update statistics every 15 minutes */
+#define STATS_TICK_SECS (15 * 60)
+
+enum {                     /* RMON registers */
+	RxOctetsReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW,
+	RxUnicastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_4_LOW,
+	RxMulticastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_5_LOW,
+	RxBroadcastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_6_LOW,
+	RxPAUSEMACCtrlFramesReceived = SUNI1x10GEXP_REG_MSTAT_COUNTER_8_LOW,
+	RxFrameCheckSequenceErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_10_LOW,
+	RxFramesLostDueToInternalMACErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_11_LOW,
+	RxSymbolErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_12_LOW,
+	RxInRangeLengthErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_13_LOW,
+	RxFramesTooLongErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_15_LOW,
+	RxJabbers = SUNI1x10GEXP_REG_MSTAT_COUNTER_16_LOW,
+	RxFragments = SUNI1x10GEXP_REG_MSTAT_COUNTER_17_LOW,
+	RxUndersizedFrames =  SUNI1x10GEXP_REG_MSTAT_COUNTER_18_LOW,
+
+	TxOctetsTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW,
+	TxFramesLostDueToInternalMACTransmissionError = SUNI1x10GEXP_REG_MSTAT_COUNTER_35_LOW,
+	TxTransmitSystemError = SUNI1x10GEXP_REG_MSTAT_COUNTER_36_LOW,
+	TxUnicastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_38_LOW,
+	TxMulticastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_40_LOW,
+	TxBroadcastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_42_LOW,
+	TxPAUSEMACCtrlFramesTransmitted = SUNI1x10GEXP_REG_MSTAT_COUNTER_43_LOW
+};
+
+struct _cmac_instance {
+	u8 enabled;
+	u8 fc;
+	u8 mac_addr[6];
+};
+
+static int pmread(struct cmac *cmac, u32 reg, u32 * data32)
+{
+	t1_tpi_read(cmac->adapter, OFFSET(reg), data32);
+	return 0;
+}
+
+static int pmwrite(struct cmac *cmac, u32 reg, u32 data32)
+{
+	t1_tpi_write(cmac->adapter, OFFSET(reg), data32);
+	return 0;
+}
+
+/* Port reset. */
+static int pm3393_reset(struct cmac *cmac)
+{
+	return 0;
+}
+
+/*
+ * Enable interrupts for the PM3393
+
+	1. Enable PM3393 BLOCK interrupts.
+	2. Enable PM3393 Master Interrupt bit(INTE)
+	3. Enable ELMER's PM3393 bit.
+	4. Enable Terminator external interrupt.
+*/
+static int pm3393_interrupt_enable(struct cmac *cmac)
+{
+	u32 pl_intr;
+
+	/* PM3393 - Enabling all hardware block interrupts.
+	 */
+	pmwrite(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE, 0xffff);
+
+	/* Don't interrupt on statistics overflow, we are polling */
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3, 0);
+
+	pmwrite(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_3, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_3, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK, 0xffff);
+	pmwrite(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE, 0xffff);
+
+	/* PM3393 - Global interrupt enable
+	 */
+	/* TBD XXX Disable for now until we figure out why error interrupts keep asserting. */
+	pmwrite(cmac, SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE,
+		0 /*SUNI1x10GEXP_BITMSK_TOP_INTE */ );
+
+	/* TERMINATOR - PL_INTERUPTS_EXT */
+	pl_intr = readl(cmac->adapter->regs + A_PL_ENABLE);
+	pl_intr |= F_PL_INTR_EXT;
+	writel(pl_intr, cmac->adapter->regs + A_PL_ENABLE);
+	return 0;
+}
+
+static int pm3393_interrupt_disable(struct cmac *cmac)
+{
+	u32 elmer;
+
+	/* PM3393 - Enabling HW interrupt blocks. */
+	pmwrite(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_3, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_3, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK, 0);
+	pmwrite(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE, 0);
+
+	/* PM3393 - Global interrupt enable */
+	pmwrite(cmac, SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE, 0);
+
+	/* ELMER - External chip interrupts. */
+	t1_tpi_read(cmac->adapter, A_ELMER0_INT_ENABLE, &elmer);
+	elmer &= ~ELMER0_GP_BIT1;
+	t1_tpi_write(cmac->adapter, A_ELMER0_INT_ENABLE, elmer);
+
+	/* TERMINATOR - PL_INTERUPTS_EXT */
+	/* DO NOT DISABLE TERMINATOR's EXTERNAL INTERRUPTS. ANOTHER CHIP
+	 * COULD WANT THEM ENABLED. We disable PM3393 at the ELMER level.
+	 */
+
+	return 0;
+}
+
+static int pm3393_interrupt_clear(struct cmac *cmac)
+{
+	u32 elmer;
+	u32 pl_intr;
+	u32 val32;
+
+	/* PM3393 - Clearing HW interrupt blocks. Note, this assumes
+	 *          bit WCIMODE=0 for a clear-on-read.
+	 */
+	pmread(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_STATUS, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_STATUS, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_STATUS, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_STATUS, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_STATUS, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_INTERRUPT, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_STATUS, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_RXXG_INTERRUPT, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_TXXG_INTERRUPT, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_INDICATION,
+	       &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_STATUS, &val32);
+	pmread(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_CHANGE, &val32);
+
+	/* PM3393 - Global interrupt status
+	 */
+	pmread(cmac, SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS, &val32);
+
+	/* ELMER - External chip interrupts.
+	 */
+	t1_tpi_read(cmac->adapter, A_ELMER0_INT_CAUSE, &elmer);
+	elmer |= ELMER0_GP_BIT1;
+	t1_tpi_write(cmac->adapter, A_ELMER0_INT_CAUSE, elmer);
+
+	/* TERMINATOR - PL_INTERUPTS_EXT
+	 */
+	pl_intr = readl(cmac->adapter->regs + A_PL_CAUSE);
+	pl_intr |= F_PL_INTR_EXT;
+	writel(pl_intr, cmac->adapter->regs + A_PL_CAUSE);
+
+	return 0;
+}
+
+/* Interrupt handler */
+static int pm3393_interrupt_handler(struct cmac *cmac)
+{
+	u32 master_intr_status;
+/*
+	1. Read master interrupt register.
+	2. Read BLOCK's interrupt status registers.
+	3. Handle BLOCK interrupts.
+*/
+	/* Read the master interrupt status register. */
+	pmread(cmac, SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS,
+	       &master_intr_status);
+
+	/* TBD XXX Lets just clear everything for now */
+	pm3393_interrupt_clear(cmac);
+
+	return 0;
+}
+
+static int pm3393_enable(struct cmac *cmac, int which)
+{
+	if (which & MAC_DIRECTION_RX)
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_1,
+			(RXXG_CONF1_VAL | SUNI1x10GEXP_BITMSK_RXXG_RXEN));
+
+	if (which & MAC_DIRECTION_TX) {
+		u32 val = TXXG_CONF1_VAL | SUNI1x10GEXP_BITMSK_TXXG_TXEN0;
+
+		if (cmac->instance->fc & PAUSE_RX)
+			val |= SUNI1x10GEXP_BITMSK_TXXG_FCRX;
+		if (cmac->instance->fc & PAUSE_TX)
+			val |= SUNI1x10GEXP_BITMSK_TXXG_FCTX;
+		pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_1, val);
+	}
+
+	cmac->instance->enabled |= which;
+	return 0;
+}
+
+static int pm3393_enable_port(struct cmac *cmac, int which)
+{
+	/* Clear port statistics */
+	pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_CONTROL,
+		SUNI1x10GEXP_BITMSK_MSTAT_CLEAR);
+	udelay(2);
+	memset(&cmac->stats, 0, sizeof(struct cmac_statistics));
+
+	pm3393_enable(cmac, which);
+
+	/*
+	 * XXX This should be done by the PHY and preferrably not at all.
+	 * The PHY doesn't give us link status indication on its own so have
+	 * the link management code query it instead.
+	 */
+	{
+		extern void link_changed(adapter_t *adapter, int port_id);
+
+		link_changed(cmac->adapter, 0);
+	}
+	return 0;
+}
+
+static int pm3393_disable(struct cmac *cmac, int which)
+{
+	if (which & MAC_DIRECTION_RX)
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_1, RXXG_CONF1_VAL);
+	if (which & MAC_DIRECTION_TX)
+		pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_1, TXXG_CONF1_VAL);
+
+	/*
+	 * The disable is graceful. Give the PM3393 time.  Can't wait very
+	 * long here, we may be holding locks.
+	 */
+	udelay(20);
+
+	cmac->instance->enabled &= ~which;
+	return 0;
+}
+
+static int pm3393_loopback_enable(struct cmac *cmac)
+{
+	return 0;
+}
+
+static int pm3393_loopback_disable(struct cmac *cmac)
+{
+	return 0;
+}
+
+static int pm3393_set_mtu(struct cmac *cmac, int mtu)
+{
+	int enabled = cmac->instance->enabled;
+
+	/* MAX_FRAME_SIZE includes header + FCS, mtu doesn't */
+	mtu += 14 + 4;
+	if (mtu > MAX_FRAME_SIZE)
+		return -EINVAL;
+
+	/* Disable Rx/Tx MAC before configuring it. */
+	if (enabled)
+		pm3393_disable(cmac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
+
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MAX_FRAME_LENGTH, mtu);
+	pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_MAX_FRAME_SIZE, mtu);
+
+	if (enabled)
+		pm3393_enable(cmac, enabled);
+	return 0;
+}
+
+static u32 calc_crc(u8 *b, int len)
+{
+	int i;
+	u32 crc = (u32)~0;
+
+	/* calculate crc one bit at a time */
+	while (len--) {
+		crc ^= *b++;
+		for (i = 0; i < 8; i++) {
+			if (crc & 0x1)
+				crc = (crc >> 1) ^ 0xedb88320;
+			else
+				crc = (crc >> 1);
+		}
+	}
+
+	/* reverse bits */
+	crc = ((crc >> 4) & 0x0f0f0f0f) | ((crc << 4) & 0xf0f0f0f0);
+	crc = ((crc >> 2) & 0x33333333) | ((crc << 2) & 0xcccccccc);
+	crc = ((crc >> 1) & 0x55555555) | ((crc << 1) & 0xaaaaaaaa);
+	/* swap bytes */
+	crc = (crc >> 16) | (crc << 16);
+	crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
+
+	return crc;
+}
+
+static int pm3393_set_rx_mode(struct cmac *cmac, struct t1_rx_mode *rm)
+{
+	int enabled = cmac->instance->enabled & MAC_DIRECTION_RX;
+	u32 rx_mode;
+
+	/* Disable MAC RX before reconfiguring it */
+	if (enabled)
+		pm3393_disable(cmac, MAC_DIRECTION_RX);
+
+	pmread(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, &rx_mode);
+	rx_mode &= ~(SUNI1x10GEXP_BITMSK_RXXG_PMODE |
+		     SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2,
+		(u16)rx_mode);
+
+	if (t1_rx_mode_promisc(rm)) {
+		/* Promiscuous mode. */
+		rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_PMODE;
+	}
+	if (t1_rx_mode_allmulti(rm)) {
+		/* Accept all multicast. */
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW, 0xffff);
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW, 0xffff);
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH, 0xffff);
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH, 0xffff);
+		rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN;
+	} else if (t1_rx_mode_mc_cnt(rm)) {
+		/* Accept one or more multicast(s). */
+		u8 *addr;
+		int bit;
+		u16 mc_filter[4] = { 0, };
+
+		while ((addr = t1_get_next_mcaddr(rm))) {
+			bit = (calc_crc(addr, ETH_ALEN) >> 23) & 0x3f;	/* bit[23:28] */
+			mc_filter[bit >> 4] |= 1 << (bit & 0xf);
+		}
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW, mc_filter[0]);
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW, mc_filter[1]);
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH, mc_filter[2]);
+		pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH, mc_filter[3]);
+		rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN;
+	}
+
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, (u16)rx_mode);
+
+	if (enabled)
+		pm3393_enable(cmac, MAC_DIRECTION_RX);
+
+	return 0;
+}
+
+static int pm3393_get_speed_duplex_fc(struct cmac *cmac, int *speed,
+				      int *duplex, int *fc)
+{
+	if (speed)
+		*speed = SPEED_10000;
+	if (duplex)
+		*duplex = DUPLEX_FULL;
+	if (fc)
+		*fc = cmac->instance->fc;
+	return 0;
+}
+
+static int pm3393_set_speed_duplex_fc(struct cmac *cmac, int speed, int duplex,
+				      int fc)
+{
+	if (speed >= 0 && speed != SPEED_10000)
+		return -1;
+	if (duplex >= 0 && duplex != DUPLEX_FULL)
+		return -1;
+	if (fc & ~(PAUSE_TX | PAUSE_RX))
+		return -1;
+
+	if (fc != cmac->instance->fc) {
+		cmac->instance->fc = (u8) fc;
+		if (cmac->instance->enabled & MAC_DIRECTION_TX)
+			pm3393_enable(cmac, MAC_DIRECTION_TX);
+	}
+	return 0;
+}
+
+#define RMON_UPDATE(mac, name, stat_name) \
+	{ \
+		t1_tpi_read((mac)->adapter, OFFSET(name), &val0);	\
+		t1_tpi_read((mac)->adapter, OFFSET(((name)+1)), &val1); \
+		t1_tpi_read((mac)->adapter, OFFSET(((name)+2)), &val2); \
+		(mac)->stats.stat_name = ((u64)val0 & 0xffff) | \
+						(((u64)val1 & 0xffff) << 16) | \
+						(((u64)val2 & 0xff) << 32) | \
+						((mac)->stats.stat_name & \
+							(~(u64)0 << 40)); \
+		if (ro &	\
+			((name -  SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW) >> 2)) \
+			(mac)->stats.stat_name += ((u64)1 << 40); \
+	}
+
+static const struct cmac_statistics *pm3393_update_statistics(struct cmac *mac,
+							      int flag)
+{
+	u64	ro;
+	u32	val0, val1, val2, val3;
+
+	/* Snap the counters */
+	pmwrite(mac, SUNI1x10GEXP_REG_MSTAT_CONTROL,
+		SUNI1x10GEXP_BITMSK_MSTAT_SNAP);
+
+	/* Counter rollover, clear on read */
+	pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_0, &val0);
+	pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_1, &val1);
+	pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_2, &val2);
+	pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_3, &val3);
+	ro = ((u64)val0 & 0xffff) | (((u64)val1 & 0xffff) << 16) |
+		(((u64)val2 & 0xffff) << 32) | (((u64)val3 & 0xffff) << 48);
+
+	/* Rx stats */
+	RMON_UPDATE(mac, RxOctetsReceivedOK, RxOctetsOK);
+	RMON_UPDATE(mac, RxUnicastFramesReceivedOK, RxUnicastFramesOK);
+	RMON_UPDATE(mac, RxMulticastFramesReceivedOK, RxMulticastFramesOK);
+	RMON_UPDATE(mac, RxBroadcastFramesReceivedOK, RxBroadcastFramesOK);
+	RMON_UPDATE(mac, RxPAUSEMACCtrlFramesReceived, RxPauseFrames);
+	RMON_UPDATE(mac, RxFrameCheckSequenceErrors, RxFCSErrors);
+	RMON_UPDATE(mac, RxFramesLostDueToInternalMACErrors,
+				RxInternalMACRcvError);
+	RMON_UPDATE(mac, RxSymbolErrors, RxSymbolErrors);
+	RMON_UPDATE(mac, RxInRangeLengthErrors, RxInRangeLengthErrors);
+	RMON_UPDATE(mac, RxFramesTooLongErrors , RxFrameTooLongErrors);
+	RMON_UPDATE(mac, RxJabbers, RxJabberErrors);
+	RMON_UPDATE(mac, RxFragments, RxRuntErrors);
+	RMON_UPDATE(mac, RxUndersizedFrames, RxRuntErrors);
+
+	/* Tx stats */
+	RMON_UPDATE(mac, TxOctetsTransmittedOK, TxOctetsOK);
+	RMON_UPDATE(mac, TxFramesLostDueToInternalMACTransmissionError,
+				TxInternalMACXmitError);
+	RMON_UPDATE(mac, TxTransmitSystemError, TxFCSErrors);
+	RMON_UPDATE(mac, TxUnicastFramesTransmittedOK, TxUnicastFramesOK);
+	RMON_UPDATE(mac, TxMulticastFramesTransmittedOK, TxMulticastFramesOK);
+	RMON_UPDATE(mac, TxBroadcastFramesTransmittedOK, TxBroadcastFramesOK);
+	RMON_UPDATE(mac, TxPAUSEMACCtrlFramesTransmitted, TxPauseFrames);
+
+	return &mac->stats;
+}
+
+static int pm3393_macaddress_get(struct cmac *cmac, u8 mac_addr[6])
+{
+	memcpy(mac_addr, cmac->instance->mac_addr, 6);
+	return 0;
+}
+
+static int pm3393_macaddress_set(struct cmac *cmac, u8 ma[6])
+{
+	u32 val, lo, mid, hi, enabled = cmac->instance->enabled;
+
+	/*
+	 * MAC addr: 00:07:43:00:13:09
+	 *
+	 * ma[5] = 0x09
+	 * ma[4] = 0x13
+	 * ma[3] = 0x00
+	 * ma[2] = 0x43
+	 * ma[1] = 0x07
+	 * ma[0] = 0x00
+	 *
+	 * The PM3393 requires byte swapping and reverse order entry
+	 * when programming MAC addresses:
+	 *
+	 * low_bits[15:0]    = ma[1]:ma[0]
+	 * mid_bits[31:16]   = ma[3]:ma[2]
+	 * high_bits[47:32]  = ma[5]:ma[4]
+	 */
+
+	/* Store local copy */
+	memcpy(cmac->instance->mac_addr, ma, 6);
+
+	lo = ((u32) ma[1] << 8) | (u32) ma[0];
+	mid = ((u32) ma[3] << 8) | (u32) ma[2];
+	hi = ((u32) ma[5] << 8) | (u32) ma[4];
+
+	/* Disable Rx/Tx MAC before configuring it. */
+	if (enabled)
+		pm3393_disable(cmac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
+
+	/* Set RXXG Station Address */
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_15_0, lo);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_31_16, mid);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_47_32, hi);
+
+	/* Set TXXG Station Address */
+	pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_15_0, lo);
+	pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_31_16, mid);
+	pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_47_32, hi);
+
+	/* Setup Exact Match Filter 1 with our MAC address
+	 *
+	 * Must disable exact match filter before configuring it.
+	 */
+	pmread(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, &val);
+	val &= 0xff0f;
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, val);
+
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_LOW, lo);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_MID, mid);
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_HIGH, hi);
+
+	val |= 0x0090;
+	pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, val);
+
+	if (enabled)
+		pm3393_enable(cmac, enabled);
+	return 0;
+}
+
+static void pm3393_destroy(struct cmac *cmac)
+{
+	kfree(cmac);
+}
+
+static struct cmac_ops pm3393_ops = {
+	.destroy                 = pm3393_destroy,
+	.reset                   = pm3393_reset,
+	.interrupt_enable        = pm3393_interrupt_enable,
+	.interrupt_disable       = pm3393_interrupt_disable,
+	.interrupt_clear         = pm3393_interrupt_clear,
+	.interrupt_handler       = pm3393_interrupt_handler,
+	.enable                  = pm3393_enable_port,
+	.disable                 = pm3393_disable,
+	.loopback_enable         = pm3393_loopback_enable,
+	.loopback_disable        = pm3393_loopback_disable,
+	.set_mtu                 = pm3393_set_mtu,
+	.set_rx_mode             = pm3393_set_rx_mode,
+	.get_speed_duplex_fc     = pm3393_get_speed_duplex_fc,
+	.set_speed_duplex_fc     = pm3393_set_speed_duplex_fc,
+	.statistics_update       = pm3393_update_statistics,
+	.macaddress_get          = pm3393_macaddress_get,
+	.macaddress_set          = pm3393_macaddress_set
+};
+
+static struct cmac *pm3393_mac_create(adapter_t *adapter, int index)
+{
+	struct cmac *cmac;
+
+	cmac = kmalloc(sizeof(*cmac) + sizeof(cmac_instance), GFP_KERNEL);
+	if (!cmac)
+		return NULL;
+	memset(cmac, 0, sizeof(*cmac));
+
+	cmac->ops = &pm3393_ops;
+	cmac->instance = (cmac_instance *) (cmac + 1);
+	cmac->adapter = adapter;
+	cmac->instance->fc = PAUSE_TX | PAUSE_RX;
+
+	t1_tpi_write(adapter, OFFSET(0x0001), 0x00008000);
+	t1_tpi_write(adapter, OFFSET(0x0001), 0x00000000);
+	t1_tpi_write(adapter, OFFSET(0x2308), 0x00009800);
+	t1_tpi_write(adapter, OFFSET(0x2305), 0x00001001);   /* PL4IO Enable */
+	t1_tpi_write(adapter, OFFSET(0x2320), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2321), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2322), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2323), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2324), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2325), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2326), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2327), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2328), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x2329), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x232a), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x232b), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x232c), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x232d), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x232e), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x232f), 0x00008800);
+	t1_tpi_write(adapter, OFFSET(0x230d), 0x00009c00);
+	t1_tpi_write(adapter, OFFSET(0x2304), 0x00000202);	/* PL4IO Calendar Repetitions */
+
+	t1_tpi_write(adapter, OFFSET(0x3200), 0x00008080);	/* EFLX Enable */
+	t1_tpi_write(adapter, OFFSET(0x3210), 0x00000000);	/* EFLX Channel Deprovision */
+	t1_tpi_write(adapter, OFFSET(0x3203), 0x00000000);	/* EFLX Low Limit */
+	t1_tpi_write(adapter, OFFSET(0x3204), 0x00000040);	/* EFLX High Limit */
+	t1_tpi_write(adapter, OFFSET(0x3205), 0x000002cc);	/* EFLX Almost Full */
+	t1_tpi_write(adapter, OFFSET(0x3206), 0x00000199);	/* EFLX Almost Empty */
+	t1_tpi_write(adapter, OFFSET(0x3207), 0x00000240);	/* EFLX Cut Through Threshold */
+	t1_tpi_write(adapter, OFFSET(0x3202), 0x00000000);	/* EFLX Indirect Register Update */
+	t1_tpi_write(adapter, OFFSET(0x3210), 0x00000001);	/* EFLX Channel Provision */
+	t1_tpi_write(adapter, OFFSET(0x3208), 0x0000ffff);	/* EFLX Undocumented */
+	t1_tpi_write(adapter, OFFSET(0x320a), 0x0000ffff);	/* EFLX Undocumented */
+	t1_tpi_write(adapter, OFFSET(0x320c), 0x0000ffff);	/* EFLX enable overflow interrupt The other bit are undocumented */
+	t1_tpi_write(adapter, OFFSET(0x320e), 0x0000ffff);	/* EFLX Undocumented */
+
+	t1_tpi_write(adapter, OFFSET(0x2200), 0x0000c000);	/* IFLX Configuration - enable */
+	t1_tpi_write(adapter, OFFSET(0x2201), 0x00000000);	/* IFLX Channel Deprovision */
+	t1_tpi_write(adapter, OFFSET(0x220e), 0x00000000);	/* IFLX Low Limit */
+	t1_tpi_write(adapter, OFFSET(0x220f), 0x00000100);	/* IFLX High Limit */
+	t1_tpi_write(adapter, OFFSET(0x2210), 0x00000c00);	/* IFLX Almost Full Limit */
+	t1_tpi_write(adapter, OFFSET(0x2211), 0x00000599);	/* IFLX Almost Empty Limit */
+	t1_tpi_write(adapter, OFFSET(0x220d), 0x00000000);	/* IFLX Indirect Register Update */
+	t1_tpi_write(adapter, OFFSET(0x2201), 0x00000001);	/* IFLX Channel Provision */
+	t1_tpi_write(adapter, OFFSET(0x2203), 0x0000ffff);	/* IFLX Undocumented */
+	t1_tpi_write(adapter, OFFSET(0x2205), 0x0000ffff);	/* IFLX Undocumented */
+	t1_tpi_write(adapter, OFFSET(0x2209), 0x0000ffff);	/* IFLX Enable overflow interrupt.  The other bit are undocumented */
+
+	t1_tpi_write(adapter, OFFSET(0x2241), 0xfffffffe);	/* PL4MOS Undocumented */
+	t1_tpi_write(adapter, OFFSET(0x2242), 0x0000ffff);	/* PL4MOS Undocumented */
+	t1_tpi_write(adapter, OFFSET(0x2243), 0x00000008);	/* PL4MOS Starving Burst Size */
+	t1_tpi_write(adapter, OFFSET(0x2244), 0x00000008);	/* PL4MOS Hungry Burst Size */
+	t1_tpi_write(adapter, OFFSET(0x2245), 0x00000008);	/* PL4MOS Transfer Size */
+	t1_tpi_write(adapter, OFFSET(0x2240), 0x00000005);	/* PL4MOS Disable */
+
+	t1_tpi_write(adapter, OFFSET(0x2280), 0x00002103);	/* PL4ODP Training Repeat and SOP rule */
+	t1_tpi_write(adapter, OFFSET(0x2284), 0x00000000);	/* PL4ODP MAX_T setting */
+
+	t1_tpi_write(adapter, OFFSET(0x3280), 0x00000087);	/* PL4IDU Enable data forward, port state machine. Set ALLOW_NON_ZERO_OLB */
+	t1_tpi_write(adapter, OFFSET(0x3282), 0x0000001f);	/* PL4IDU Enable Dip4 check error interrupts */
+
+	t1_tpi_write(adapter, OFFSET(0x3040), 0x0c32);	/* # TXXG Config */
+	/* For T1 use timer based Mac flow control. */
+	t1_tpi_write(adapter, OFFSET(0x304d), 0x8000);
+	t1_tpi_write(adapter, OFFSET(0x2040), 0x059c);	/* # RXXG Config */
+	t1_tpi_write(adapter, OFFSET(0x2049), 0x0001);	/* # RXXG Cut Through */
+	t1_tpi_write(adapter, OFFSET(0x2070), 0x0000);	/* # Disable promiscuous mode */
+
+	/* Setup Exact Match Filter 0 to allow broadcast packets.
+	 */
+	t1_tpi_write(adapter, OFFSET(0x206e), 0x0000);	/* # Disable Match Enable bit */
+	t1_tpi_write(adapter, OFFSET(0x204a), 0xffff);	/* # low addr */
+	t1_tpi_write(adapter, OFFSET(0x204b), 0xffff);	/* # mid addr */
+	t1_tpi_write(adapter, OFFSET(0x204c), 0xffff);	/* # high addr */
+	t1_tpi_write(adapter, OFFSET(0x206e), 0x0009);	/* # Enable Match Enable bit */
+
+	t1_tpi_write(adapter, OFFSET(0x0003), 0x0000);	/* # NO SOP/ PAD_EN setup */
+	t1_tpi_write(adapter, OFFSET(0x0100), 0x0ff0);	/* # RXEQB disabled */
+	t1_tpi_write(adapter, OFFSET(0x0101), 0x0f0f);	/* # No Preemphasis */
+
+	return cmac;
+}
+
+static int pm3393_mac_reset(adapter_t * adapter)
+{
+	u32 val;
+	u32 x;
+	u32 is_pl4_reset_finished;
+	u32 is_pl4_outof_lock;
+	u32 is_xaui_mabc_pll_locked;
+	u32 successful_reset;
+	int i;
+
+	/* The following steps are required to properly reset
+	 * the PM3393. This information is provided in the
+	 * PM3393 datasheet (Issue 2: November 2002)
+	 * section 13.1 -- Device Reset.
+	 *
+	 * The PM3393 has three types of components that are
+	 * individually reset:
+	 *
+	 * DRESETB      - Digital circuitry
+	 * PL4_ARESETB  - PL4 analog circuitry
+	 * XAUI_ARESETB - XAUI bus analog circuitry
+	 *
+	 * Steps to reset PM3393 using RSTB pin:
+	 *
+	 * 1. Assert RSTB pin low ( write 0 )
+	 * 2. Wait at least 1ms to initiate a complete initialization of device.
+	 * 3. Wait until all external clocks and REFSEL are stable.
+	 * 4. Wait minimum of 1ms. (after external clocks and REFEL are stable)
+	 * 5. De-assert RSTB ( write 1 )
+	 * 6. Wait until internal timers to expires after ~14ms.
+	 *    - Allows analog clock synthesizer(PL4CSU) to stabilize to
+	 *      selected reference frequency before allowing the digital
+	 *      portion of the device to operate.
+	 * 7. Wait at least 200us for XAUI interface to stabilize.
+	 * 8. Verify the PM3393 came out of reset successfully.
+	 *    Set successful reset flag if everything worked else try again
+	 *    a few more times.
+	 */
+
+	successful_reset = 0;
+	for (i = 0; i < 3 && !successful_reset; i++) {
+		/* 1 */
+		t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+		val &= ~1;
+		t1_tpi_write(adapter, A_ELMER0_GPO, val);
+
+		/* 2 */
+		msleep(1);
+
+		/* 3 */
+		msleep(1);
+
+		/* 4 */
+		msleep(2 /*1 extra ms for safety */ );
+
+		/* 5 */
+		val |= 1;
+		t1_tpi_write(adapter, A_ELMER0_GPO, val);
+
+		/* 6 */
+		msleep(15 /*1 extra ms for safety */ );
+
+		/* 7 */
+		msleep(1);
+
+		/* 8 */
+
+		/* Has PL4 analog block come out of reset correctly? */
+		t1_tpi_read(adapter, OFFSET(SUNI1x10GEXP_REG_DEVICE_STATUS), &val);
+		is_pl4_reset_finished = (val & SUNI1x10GEXP_BITMSK_TOP_EXPIRED);
+
+		/* TBD XXX SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL gets locked later in the init sequence
+		 *         figure out why? */
+
+		/* Have all PL4 block clocks locked? */
+		x = (SUNI1x10GEXP_BITMSK_TOP_PL4_ID_DOOL
+		     /*| SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL */  |
+		     SUNI1x10GEXP_BITMSK_TOP_PL4_ID_ROOL |
+		     SUNI1x10GEXP_BITMSK_TOP_PL4_IS_ROOL |
+		     SUNI1x10GEXP_BITMSK_TOP_PL4_OUT_ROOL);
+		is_pl4_outof_lock = (val & x);
+
+		/* ??? If this fails, might be able to software reset the XAUI part
+		 *     and try to recover... thus saving us from doing another HW reset */
+		/* Has the XAUI MABC PLL circuitry stablized? */
+		is_xaui_mabc_pll_locked =
+		    (val & SUNI1x10GEXP_BITMSK_TOP_SXRA_EXPIRED);
+
+		successful_reset = (is_pl4_reset_finished && !is_pl4_outof_lock
+				    && is_xaui_mabc_pll_locked);
+	}
+	return successful_reset ? 0 : 1;
+}
+
+struct gmac t1_pm3393_ops = {
+	STATS_TICK_SECS,
+	pm3393_mac_create,
+	pm3393_mac_reset
+};
diff --git a/drivers/net/chelsio/regs.h b/drivers/net/chelsio/regs.h
new file mode 100644
index 000000000000..b90e11f40d1f
--- /dev/null
+++ b/drivers/net/chelsio/regs.h
@@ -0,0 +1,468 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: regs.h                                                              *
+ * $Revision: 1.8 $                                                          *
+ * $Date: 2005/06/21 18:29:48 $                                              *
+ * Description:                                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_REGS_H_
+#define _CXGB_REGS_H_
+
+/* SGE registers */
+#define A_SG_CONTROL 0x0
+
+#define S_CMDQ0_ENABLE    0
+#define V_CMDQ0_ENABLE(x) ((x) << S_CMDQ0_ENABLE)
+#define F_CMDQ0_ENABLE    V_CMDQ0_ENABLE(1U)
+
+#define S_CMDQ1_ENABLE    1
+#define V_CMDQ1_ENABLE(x) ((x) << S_CMDQ1_ENABLE)
+#define F_CMDQ1_ENABLE    V_CMDQ1_ENABLE(1U)
+
+#define S_FL0_ENABLE    2
+#define V_FL0_ENABLE(x) ((x) << S_FL0_ENABLE)
+#define F_FL0_ENABLE    V_FL0_ENABLE(1U)
+
+#define S_FL1_ENABLE    3
+#define V_FL1_ENABLE(x) ((x) << S_FL1_ENABLE)
+#define F_FL1_ENABLE    V_FL1_ENABLE(1U)
+
+#define S_CPL_ENABLE    4
+#define V_CPL_ENABLE(x) ((x) << S_CPL_ENABLE)
+#define F_CPL_ENABLE    V_CPL_ENABLE(1U)
+
+#define S_RESPONSE_QUEUE_ENABLE    5
+#define V_RESPONSE_QUEUE_ENABLE(x) ((x) << S_RESPONSE_QUEUE_ENABLE)
+#define F_RESPONSE_QUEUE_ENABLE    V_RESPONSE_QUEUE_ENABLE(1U)
+
+#define S_CMDQ_PRIORITY    6
+#define M_CMDQ_PRIORITY    0x3
+#define V_CMDQ_PRIORITY(x) ((x) << S_CMDQ_PRIORITY)
+#define G_CMDQ_PRIORITY(x) (((x) >> S_CMDQ_PRIORITY) & M_CMDQ_PRIORITY)
+
+#define S_DISABLE_CMDQ1_GTS    9
+#define V_DISABLE_CMDQ1_GTS(x) ((x) << S_DISABLE_CMDQ1_GTS)
+#define F_DISABLE_CMDQ1_GTS    V_DISABLE_CMDQ1_GTS(1U)
+
+#define S_DISABLE_FL0_GTS    10
+#define V_DISABLE_FL0_GTS(x) ((x) << S_DISABLE_FL0_GTS)
+#define F_DISABLE_FL0_GTS    V_DISABLE_FL0_GTS(1U)
+
+#define S_DISABLE_FL1_GTS    11
+#define V_DISABLE_FL1_GTS(x) ((x) << S_DISABLE_FL1_GTS)
+#define F_DISABLE_FL1_GTS    V_DISABLE_FL1_GTS(1U)
+
+#define S_ENABLE_BIG_ENDIAN    12
+#define V_ENABLE_BIG_ENDIAN(x) ((x) << S_ENABLE_BIG_ENDIAN)
+#define F_ENABLE_BIG_ENDIAN    V_ENABLE_BIG_ENDIAN(1U)
+
+#define S_ISCSI_COALESCE    14
+#define V_ISCSI_COALESCE(x) ((x) << S_ISCSI_COALESCE)
+#define F_ISCSI_COALESCE    V_ISCSI_COALESCE(1U)
+
+#define S_RX_PKT_OFFSET    15
+#define V_RX_PKT_OFFSET(x) ((x) << S_RX_PKT_OFFSET)
+
+#define S_VLAN_XTRACT    18
+#define V_VLAN_XTRACT(x) ((x) << S_VLAN_XTRACT)
+#define F_VLAN_XTRACT    V_VLAN_XTRACT(1U)
+
+#define A_SG_DOORBELL 0x4
+#define A_SG_CMD0BASELWR 0x8
+#define A_SG_CMD0BASEUPR 0xc
+#define A_SG_CMD1BASELWR 0x10
+#define A_SG_CMD1BASEUPR 0x14
+#define A_SG_FL0BASELWR 0x18
+#define A_SG_FL0BASEUPR 0x1c
+#define A_SG_FL1BASELWR 0x20
+#define A_SG_FL1BASEUPR 0x24
+#define A_SG_CMD0SIZE 0x28
+#define A_SG_FL0SIZE 0x2c
+#define A_SG_RSPSIZE 0x30
+#define A_SG_RSPBASELWR 0x34
+#define A_SG_RSPBASEUPR 0x38
+#define A_SG_FLTHRESHOLD 0x3c
+#define A_SG_RSPQUEUECREDIT 0x40
+#define A_SG_SLEEPING 0x48
+#define A_SG_INTRTIMER 0x4c
+#define A_SG_CMD1SIZE 0xb0
+#define A_SG_FL1SIZE 0xb4
+#define A_SG_INT_ENABLE 0xb8
+
+#define S_RESPQ_EXHAUSTED    0
+#define V_RESPQ_EXHAUSTED(x) ((x) << S_RESPQ_EXHAUSTED)
+#define F_RESPQ_EXHAUSTED    V_RESPQ_EXHAUSTED(1U)
+
+#define S_RESPQ_OVERFLOW    1
+#define V_RESPQ_OVERFLOW(x) ((x) << S_RESPQ_OVERFLOW)
+#define F_RESPQ_OVERFLOW    V_RESPQ_OVERFLOW(1U)
+
+#define S_FL_EXHAUSTED    2
+#define V_FL_EXHAUSTED(x) ((x) << S_FL_EXHAUSTED)
+#define F_FL_EXHAUSTED    V_FL_EXHAUSTED(1U)
+
+#define S_PACKET_TOO_BIG    3
+#define V_PACKET_TOO_BIG(x) ((x) << S_PACKET_TOO_BIG)
+#define F_PACKET_TOO_BIG    V_PACKET_TOO_BIG(1U)
+
+#define S_PACKET_MISMATCH    4
+#define V_PACKET_MISMATCH(x) ((x) << S_PACKET_MISMATCH)
+#define F_PACKET_MISMATCH    V_PACKET_MISMATCH(1U)
+
+#define A_SG_INT_CAUSE 0xbc
+#define A_SG_RESPACCUTIMER 0xc0
+
+/* MC3 registers */
+
+#define S_READY    1
+#define V_READY(x) ((x) << S_READY)
+#define F_READY    V_READY(1U)
+
+/* MC4 registers */
+
+#define A_MC4_CFG 0x180
+#define S_MC4_SLOW    25
+#define V_MC4_SLOW(x) ((x) << S_MC4_SLOW)
+#define F_MC4_SLOW    V_MC4_SLOW(1U)
+
+/* TPI registers */
+
+#define A_TPI_ADDR 0x280
+#define A_TPI_WR_DATA 0x284
+#define A_TPI_RD_DATA 0x288
+#define A_TPI_CSR 0x28c
+
+#define S_TPIWR    0
+#define V_TPIWR(x) ((x) << S_TPIWR)
+#define F_TPIWR    V_TPIWR(1U)
+
+#define S_TPIRDY    1
+#define V_TPIRDY(x) ((x) << S_TPIRDY)
+#define F_TPIRDY    V_TPIRDY(1U)
+
+#define A_TPI_PAR 0x29c
+
+#define S_TPIPAR    0
+#define M_TPIPAR    0x7f
+#define V_TPIPAR(x) ((x) << S_TPIPAR)
+#define G_TPIPAR(x) (((x) >> S_TPIPAR) & M_TPIPAR)
+
+/* TP registers */
+
+#define A_TP_IN_CONFIG 0x300
+
+#define S_TP_IN_CSPI_CPL    3
+#define V_TP_IN_CSPI_CPL(x) ((x) << S_TP_IN_CSPI_CPL)
+#define F_TP_IN_CSPI_CPL    V_TP_IN_CSPI_CPL(1U)
+
+#define S_TP_IN_CSPI_CHECK_IP_CSUM    5
+#define V_TP_IN_CSPI_CHECK_IP_CSUM(x) ((x) << S_TP_IN_CSPI_CHECK_IP_CSUM)
+#define F_TP_IN_CSPI_CHECK_IP_CSUM    V_TP_IN_CSPI_CHECK_IP_CSUM(1U)
+
+#define S_TP_IN_CSPI_CHECK_TCP_CSUM    6
+#define V_TP_IN_CSPI_CHECK_TCP_CSUM(x) ((x) << S_TP_IN_CSPI_CHECK_TCP_CSUM)
+#define F_TP_IN_CSPI_CHECK_TCP_CSUM    V_TP_IN_CSPI_CHECK_TCP_CSUM(1U)
+
+#define S_TP_IN_ESPI_ETHERNET    8
+#define V_TP_IN_ESPI_ETHERNET(x) ((x) << S_TP_IN_ESPI_ETHERNET)
+#define F_TP_IN_ESPI_ETHERNET    V_TP_IN_ESPI_ETHERNET(1U)
+
+#define S_TP_IN_ESPI_CHECK_IP_CSUM    12
+#define V_TP_IN_ESPI_CHECK_IP_CSUM(x) ((x) << S_TP_IN_ESPI_CHECK_IP_CSUM)
+#define F_TP_IN_ESPI_CHECK_IP_CSUM    V_TP_IN_ESPI_CHECK_IP_CSUM(1U)
+
+#define S_TP_IN_ESPI_CHECK_TCP_CSUM    13
+#define V_TP_IN_ESPI_CHECK_TCP_CSUM(x) ((x) << S_TP_IN_ESPI_CHECK_TCP_CSUM)
+#define F_TP_IN_ESPI_CHECK_TCP_CSUM    V_TP_IN_ESPI_CHECK_TCP_CSUM(1U)
+
+#define S_OFFLOAD_DISABLE    14
+#define V_OFFLOAD_DISABLE(x) ((x) << S_OFFLOAD_DISABLE)
+#define F_OFFLOAD_DISABLE    V_OFFLOAD_DISABLE(1U)
+
+#define A_TP_OUT_CONFIG 0x304
+
+#define S_TP_OUT_CSPI_CPL    2
+#define V_TP_OUT_CSPI_CPL(x) ((x) << S_TP_OUT_CSPI_CPL)
+#define F_TP_OUT_CSPI_CPL    V_TP_OUT_CSPI_CPL(1U)
+
+#define S_TP_OUT_ESPI_ETHERNET    6
+#define V_TP_OUT_ESPI_ETHERNET(x) ((x) << S_TP_OUT_ESPI_ETHERNET)
+#define F_TP_OUT_ESPI_ETHERNET    V_TP_OUT_ESPI_ETHERNET(1U)
+
+#define S_TP_OUT_ESPI_GENERATE_IP_CSUM    10
+#define V_TP_OUT_ESPI_GENERATE_IP_CSUM(x) ((x) << S_TP_OUT_ESPI_GENERATE_IP_CSUM)
+#define F_TP_OUT_ESPI_GENERATE_IP_CSUM    V_TP_OUT_ESPI_GENERATE_IP_CSUM(1U)
+
+#define S_TP_OUT_ESPI_GENERATE_TCP_CSUM    11
+#define V_TP_OUT_ESPI_GENERATE_TCP_CSUM(x) ((x) << S_TP_OUT_ESPI_GENERATE_TCP_CSUM)
+#define F_TP_OUT_ESPI_GENERATE_TCP_CSUM    V_TP_OUT_ESPI_GENERATE_TCP_CSUM(1U)
+
+#define A_TP_GLOBAL_CONFIG 0x308
+
+#define S_IP_TTL    0
+#define M_IP_TTL    0xff
+#define V_IP_TTL(x) ((x) << S_IP_TTL)
+
+#define S_TCP_CSUM    11
+#define V_TCP_CSUM(x) ((x) << S_TCP_CSUM)
+#define F_TCP_CSUM    V_TCP_CSUM(1U)
+
+#define S_UDP_CSUM    12
+#define V_UDP_CSUM(x) ((x) << S_UDP_CSUM)
+#define F_UDP_CSUM    V_UDP_CSUM(1U)
+
+#define S_IP_CSUM    13
+#define V_IP_CSUM(x) ((x) << S_IP_CSUM)
+#define F_IP_CSUM    V_IP_CSUM(1U)
+
+#define S_PATH_MTU    15
+#define V_PATH_MTU(x) ((x) << S_PATH_MTU)
+#define F_PATH_MTU    V_PATH_MTU(1U)
+
+#define S_5TUPLE_LOOKUP    17
+#define V_5TUPLE_LOOKUP(x) ((x) << S_5TUPLE_LOOKUP)
+
+#define S_SYN_COOKIE_PARAMETER    26
+#define V_SYN_COOKIE_PARAMETER(x) ((x) << S_SYN_COOKIE_PARAMETER)
+
+#define A_TP_PC_CONFIG 0x348
+#define S_DIS_TX_FILL_WIN_PUSH    12
+#define V_DIS_TX_FILL_WIN_PUSH(x) ((x) << S_DIS_TX_FILL_WIN_PUSH)
+#define F_DIS_TX_FILL_WIN_PUSH    V_DIS_TX_FILL_WIN_PUSH(1U)
+
+#define S_TP_PC_REV    30
+#define M_TP_PC_REV    0x3
+#define G_TP_PC_REV(x) (((x) >> S_TP_PC_REV) & M_TP_PC_REV)
+#define A_TP_RESET 0x44c
+#define S_TP_RESET    0
+#define V_TP_RESET(x) ((x) << S_TP_RESET)
+#define F_TP_RESET    V_TP_RESET(1U)
+
+#define A_TP_INT_ENABLE 0x470
+#define A_TP_INT_CAUSE 0x474
+#define A_TP_TX_DROP_CONFIG 0x4b8
+
+#define S_ENABLE_TX_DROP    31
+#define V_ENABLE_TX_DROP(x) ((x) << S_ENABLE_TX_DROP)
+#define F_ENABLE_TX_DROP    V_ENABLE_TX_DROP(1U)
+
+#define S_ENABLE_TX_ERROR    30
+#define V_ENABLE_TX_ERROR(x) ((x) << S_ENABLE_TX_ERROR)
+#define F_ENABLE_TX_ERROR    V_ENABLE_TX_ERROR(1U)
+
+#define S_DROP_TICKS_CNT    4
+#define V_DROP_TICKS_CNT(x) ((x) << S_DROP_TICKS_CNT)
+
+#define S_NUM_PKTS_DROPPED    0
+#define V_NUM_PKTS_DROPPED(x) ((x) << S_NUM_PKTS_DROPPED)
+
+/* CSPI registers */
+
+#define S_DIP4ERR    0
+#define V_DIP4ERR(x) ((x) << S_DIP4ERR)
+#define F_DIP4ERR    V_DIP4ERR(1U)
+
+#define S_RXDROP    1
+#define V_RXDROP(x) ((x) << S_RXDROP)
+#define F_RXDROP    V_RXDROP(1U)
+
+#define S_TXDROP    2
+#define V_TXDROP(x) ((x) << S_TXDROP)
+#define F_TXDROP    V_TXDROP(1U)
+
+#define S_RXOVERFLOW    3
+#define V_RXOVERFLOW(x) ((x) << S_RXOVERFLOW)
+#define F_RXOVERFLOW    V_RXOVERFLOW(1U)
+
+#define S_RAMPARITYERR    4
+#define V_RAMPARITYERR(x) ((x) << S_RAMPARITYERR)
+#define F_RAMPARITYERR    V_RAMPARITYERR(1U)
+
+/* ESPI registers */
+
+#define A_ESPI_SCH_TOKEN0 0x880
+#define A_ESPI_SCH_TOKEN1 0x884
+#define A_ESPI_SCH_TOKEN2 0x888
+#define A_ESPI_SCH_TOKEN3 0x88c
+#define A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK 0x890
+#define A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK 0x894
+#define A_ESPI_CALENDAR_LENGTH 0x898
+#define A_PORT_CONFIG 0x89c
+
+#define S_RX_NPORTS    0
+#define V_RX_NPORTS(x) ((x) << S_RX_NPORTS)
+
+#define S_TX_NPORTS    8
+#define V_TX_NPORTS(x) ((x) << S_TX_NPORTS)
+
+#define A_ESPI_FIFO_STATUS_ENABLE 0x8a0
+
+#define S_RXSTATUSENABLE    0
+#define V_RXSTATUSENABLE(x) ((x) << S_RXSTATUSENABLE)
+#define F_RXSTATUSENABLE    V_RXSTATUSENABLE(1U)
+
+#define S_INTEL1010MODE    4
+#define V_INTEL1010MODE(x) ((x) << S_INTEL1010MODE)
+#define F_INTEL1010MODE    V_INTEL1010MODE(1U)
+
+#define A_ESPI_MAXBURST1_MAXBURST2 0x8a8
+#define A_ESPI_TRAIN 0x8ac
+#define A_ESPI_INTR_STATUS 0x8c8
+
+#define S_DIP2PARITYERR    5
+#define V_DIP2PARITYERR(x) ((x) << S_DIP2PARITYERR)
+#define F_DIP2PARITYERR    V_DIP2PARITYERR(1U)
+
+#define A_ESPI_INTR_ENABLE 0x8cc
+#define A_RX_DROP_THRESHOLD 0x8d0
+#define A_ESPI_RX_RESET 0x8ec
+#define A_ESPI_MISC_CONTROL 0x8f0
+
+#define S_OUT_OF_SYNC_COUNT    0
+#define V_OUT_OF_SYNC_COUNT(x) ((x) << S_OUT_OF_SYNC_COUNT)
+
+#define S_DIP2_PARITY_ERR_THRES    5
+#define V_DIP2_PARITY_ERR_THRES(x) ((x) << S_DIP2_PARITY_ERR_THRES)
+
+#define S_DIP4_THRES    9
+#define V_DIP4_THRES(x) ((x) << S_DIP4_THRES)
+
+#define S_MONITORED_PORT_NUM    25
+#define V_MONITORED_PORT_NUM(x) ((x) << S_MONITORED_PORT_NUM)
+
+#define S_MONITORED_DIRECTION    27
+#define V_MONITORED_DIRECTION(x) ((x) << S_MONITORED_DIRECTION)
+#define F_MONITORED_DIRECTION    V_MONITORED_DIRECTION(1U)
+
+#define S_MONITORED_INTERFACE    28
+#define V_MONITORED_INTERFACE(x) ((x) << S_MONITORED_INTERFACE)
+#define F_MONITORED_INTERFACE    V_MONITORED_INTERFACE(1U)
+
+#define A_ESPI_DIP2_ERR_COUNT 0x8f4
+#define A_ESPI_CMD_ADDR 0x8f8
+
+#define S_WRITE_DATA    0
+#define V_WRITE_DATA(x) ((x) << S_WRITE_DATA)
+
+#define S_REGISTER_OFFSET    8
+#define V_REGISTER_OFFSET(x) ((x) << S_REGISTER_OFFSET)
+
+#define S_CHANNEL_ADDR    12
+#define V_CHANNEL_ADDR(x) ((x) << S_CHANNEL_ADDR)
+
+#define S_MODULE_ADDR    16
+#define V_MODULE_ADDR(x) ((x) << S_MODULE_ADDR)
+
+#define S_BUNDLE_ADDR    20
+#define V_BUNDLE_ADDR(x) ((x) << S_BUNDLE_ADDR)
+
+#define S_SPI4_COMMAND    24
+#define V_SPI4_COMMAND(x) ((x) << S_SPI4_COMMAND)
+
+#define A_ESPI_GOSTAT 0x8fc
+#define S_ESPI_CMD_BUSY    8
+#define V_ESPI_CMD_BUSY(x) ((x) << S_ESPI_CMD_BUSY)
+#define F_ESPI_CMD_BUSY    V_ESPI_CMD_BUSY(1U)
+
+/* PL registers */
+
+#define A_PL_ENABLE 0xa00
+
+#define S_PL_INTR_SGE_ERR    0
+#define V_PL_INTR_SGE_ERR(x) ((x) << S_PL_INTR_SGE_ERR)
+#define F_PL_INTR_SGE_ERR    V_PL_INTR_SGE_ERR(1U)
+
+#define S_PL_INTR_SGE_DATA    1
+#define V_PL_INTR_SGE_DATA(x) ((x) << S_PL_INTR_SGE_DATA)
+#define F_PL_INTR_SGE_DATA    V_PL_INTR_SGE_DATA(1U)
+
+#define S_PL_INTR_TP    6
+#define V_PL_INTR_TP(x) ((x) << S_PL_INTR_TP)
+#define F_PL_INTR_TP    V_PL_INTR_TP(1U)
+
+#define S_PL_INTR_ESPI    8
+#define V_PL_INTR_ESPI(x) ((x) << S_PL_INTR_ESPI)
+#define F_PL_INTR_ESPI    V_PL_INTR_ESPI(1U)
+
+#define S_PL_INTR_PCIX    10
+#define V_PL_INTR_PCIX(x) ((x) << S_PL_INTR_PCIX)
+#define F_PL_INTR_PCIX    V_PL_INTR_PCIX(1U)
+
+#define S_PL_INTR_EXT    11
+#define V_PL_INTR_EXT(x) ((x) << S_PL_INTR_EXT)
+#define F_PL_INTR_EXT    V_PL_INTR_EXT(1U)
+
+#define A_PL_CAUSE 0xa04
+
+/* MC5 registers */
+
+#define A_MC5_CONFIG 0xc04
+
+#define S_TCAM_RESET    1
+#define V_TCAM_RESET(x) ((x) << S_TCAM_RESET)
+#define F_TCAM_RESET    V_TCAM_RESET(1U)
+
+#define S_M_BUS_ENABLE    5
+#define V_M_BUS_ENABLE(x) ((x) << S_M_BUS_ENABLE)
+#define F_M_BUS_ENABLE    V_M_BUS_ENABLE(1U)
+
+/* PCICFG registers */
+
+#define A_PCICFG_PM_CSR 0x44
+#define A_PCICFG_VPD_ADDR 0x4a
+
+#define S_VPD_OP_FLAG    15
+#define V_VPD_OP_FLAG(x) ((x) << S_VPD_OP_FLAG)
+#define F_VPD_OP_FLAG    V_VPD_OP_FLAG(1U)
+
+#define A_PCICFG_VPD_DATA 0x4c
+
+#define A_PCICFG_INTR_ENABLE 0xf4
+#define A_PCICFG_INTR_CAUSE 0xf8
+
+#define A_PCICFG_MODE 0xfc
+
+#define S_PCI_MODE_64BIT    0
+#define V_PCI_MODE_64BIT(x) ((x) << S_PCI_MODE_64BIT)
+#define F_PCI_MODE_64BIT    V_PCI_MODE_64BIT(1U)
+
+#define S_PCI_MODE_PCIX    5
+#define V_PCI_MODE_PCIX(x) ((x) << S_PCI_MODE_PCIX)
+#define F_PCI_MODE_PCIX    V_PCI_MODE_PCIX(1U)
+
+#define S_PCI_MODE_CLK    6
+#define M_PCI_MODE_CLK    0x3
+#define G_PCI_MODE_CLK(x) (((x) >> S_PCI_MODE_CLK) & M_PCI_MODE_CLK)
+
+#endif /* _CXGB_REGS_H_ */
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
new file mode 100644
index 000000000000..53b41d99b00b
--- /dev/null
+++ b/drivers/net/chelsio/sge.c
@@ -0,0 +1,1684 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: sge.c                                                               *
+ * $Revision: 1.26 $                                                         *
+ * $Date: 2005/06/21 18:29:48 $                                              *
+ * Description:                                                              *
+ *  DMA engine.                                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#include "common.h"
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/ip.h>
+#include <linux/in.h>
+#include <linux/if_arp.h>
+
+#include "cpl5_cmd.h"
+#include "sge.h"
+#include "regs.h"
+#include "espi.h"
+
+
+#ifdef NETIF_F_TSO
+#include <linux/tcp.h>
+#endif
+
+#define SGE_CMDQ_N		2
+#define SGE_FREELQ_N		2
+#define SGE_CMDQ0_E_N		1024
+#define SGE_CMDQ1_E_N		128
+#define SGE_FREEL_SIZE		4096
+#define SGE_JUMBO_FREEL_SIZE	512
+#define SGE_FREEL_REFILL_THRESH	16
+#define SGE_RESPQ_E_N		1024
+#define SGE_INTRTIMER_NRES	1000
+#define SGE_RX_COPY_THRES	256
+#define SGE_RX_SM_BUF_SIZE	1536
+
+# define SGE_RX_DROP_THRES 2
+
+#define SGE_RESPQ_REPLENISH_THRES (SGE_RESPQ_E_N / 4)
+
+/*
+ * Period of the TX buffer reclaim timer.  This timer does not need to run
+ * frequently as TX buffers are usually reclaimed by new TX packets.
+ */
+#define TX_RECLAIM_PERIOD (HZ / 4)
+
+#ifndef NET_IP_ALIGN
+# define NET_IP_ALIGN 2
+#endif
+
+#define M_CMD_LEN       0x7fffffff
+#define V_CMD_LEN(v)    (v)
+#define G_CMD_LEN(v)    ((v) & M_CMD_LEN)
+#define V_CMD_GEN1(v)   ((v) << 31)
+#define V_CMD_GEN2(v)   (v)
+#define F_CMD_DATAVALID (1 << 1)
+#define F_CMD_SOP       (1 << 2)
+#define V_CMD_EOP(v)    ((v) << 3)
+
+/*
+ * Command queue, receive buffer list, and response queue descriptors.
+ */
+#if defined(__BIG_ENDIAN_BITFIELD)
+struct cmdQ_e {
+	u32 addr_lo;
+	u32 len_gen;
+	u32 flags;
+	u32 addr_hi;
+};
+
+struct freelQ_e {
+	u32 addr_lo;
+	u32 len_gen;
+	u32 gen2;
+	u32 addr_hi;
+};
+
+struct respQ_e {
+	u32 Qsleeping		: 4;
+	u32 Cmdq1CreditReturn	: 5;
+	u32 Cmdq1DmaComplete	: 5;
+	u32 Cmdq0CreditReturn	: 5;
+	u32 Cmdq0DmaComplete	: 5;
+	u32 FreelistQid		: 2;
+	u32 CreditValid		: 1;
+	u32 DataValid		: 1;
+	u32 Offload		: 1;
+	u32 Eop			: 1;
+	u32 Sop			: 1;
+	u32 GenerationBit	: 1;
+	u32 BufferLength;
+};
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+struct cmdQ_e {
+	u32 len_gen;
+	u32 addr_lo;
+	u32 addr_hi;
+	u32 flags;
+};
+
+struct freelQ_e {
+	u32 len_gen;
+	u32 addr_lo;
+	u32 addr_hi;
+	u32 gen2;
+};
+
+struct respQ_e {
+	u32 BufferLength;
+	u32 GenerationBit	: 1;
+	u32 Sop			: 1;
+	u32 Eop			: 1;
+	u32 Offload		: 1;
+	u32 DataValid		: 1;
+	u32 CreditValid		: 1;
+	u32 FreelistQid		: 2;
+	u32 Cmdq0DmaComplete	: 5;
+	u32 Cmdq0CreditReturn	: 5;
+	u32 Cmdq1DmaComplete	: 5;
+	u32 Cmdq1CreditReturn	: 5;
+	u32 Qsleeping		: 4;
+} ;
+#endif
+
+/*
+ * SW Context Command and Freelist Queue Descriptors
+ */
+struct cmdQ_ce {
+	struct sk_buff *skb;
+	DECLARE_PCI_UNMAP_ADDR(dma_addr);
+	DECLARE_PCI_UNMAP_LEN(dma_len);
+};
+
+struct freelQ_ce {
+	struct sk_buff *skb;
+	DECLARE_PCI_UNMAP_ADDR(dma_addr);
+	DECLARE_PCI_UNMAP_LEN(dma_len);
+};
+
+/*
+ * SW command, freelist and response rings
+ */
+struct cmdQ {
+	unsigned long   status;         /* HW DMA fetch status */
+	unsigned int    in_use;         /* # of in-use command descriptors */
+	unsigned int	size;	        /* # of descriptors */
+	unsigned int	processed;      /* total # of descs HW has processed */
+	unsigned int	cleaned;        /* total # of descs SW has reclaimed */
+	unsigned int	stop_thres;     /* SW TX queue suspend threshold */
+	u16		pidx;           /* producer index (SW) */
+	u16		cidx;           /* consumer index (HW) */
+	u8		genbit;         /* current generation (=valid) bit */
+	u8		sop;            /* is next entry start of packet? */
+	struct cmdQ_e  *entries;        /* HW command descriptor Q */
+	struct cmdQ_ce *centries;       /* SW command context descriptor Q */
+	spinlock_t	lock;           /* Lock to protect cmdQ enqueuing */
+	dma_addr_t	dma_addr;       /* DMA addr HW command descriptor Q */
+};
+
+struct freelQ {
+	unsigned int	credits;        /* # of available RX buffers */
+	unsigned int	size;	        /* free list capacity */
+	u16		pidx;           /* producer index (SW) */
+	u16		cidx;           /* consumer index (HW) */
+	u16		rx_buffer_size; /* Buffer size on this free list */
+	u16		dma_offset;     /* DMA offset to align IP headers */
+	u16		recycleq_idx;   /* skb recycle q to use */
+	u8		genbit;	        /* current generation (=valid) bit */
+	struct freelQ_e	*entries;       /* HW freelist descriptor Q */
+	struct freelQ_ce *centries;     /* SW freelist context descriptor Q */
+	dma_addr_t	dma_addr;       /* DMA addr HW freelist descriptor Q */
+};
+
+struct respQ {
+	unsigned int	credits;        /* credits to be returned to SGE */
+	unsigned int	size;	        /* # of response Q descriptors */
+	u16		cidx;	        /* consumer index (SW) */
+	u8		genbit;	        /* current generation(=valid) bit */
+	struct respQ_e *entries;        /* HW response descriptor Q */
+	dma_addr_t	dma_addr;       /* DMA addr HW response descriptor Q */
+};
+
+/* Bit flags for cmdQ.status */
+enum {
+	CMDQ_STAT_RUNNING = 1,          /* fetch engine is running */
+	CMDQ_STAT_LAST_PKT_DB = 2       /* last packet rung the doorbell */
+};
+
+/*
+ * Main SGE data structure
+ *
+ * Interrupts are handled by a single CPU and it is likely that on a MP system
+ * the application is migrated to another CPU. In that scenario, we try to
+ * seperate the RX(in irq context) and TX state in order to decrease memory
+ * contention.
+ */
+struct sge {
+	struct adapter *adapter; 	/* adapter backpointer */
+	struct net_device *netdev;      /* netdevice backpointer */
+	struct freelQ 	freelQ[SGE_FREELQ_N]; /* buffer free lists */
+	struct respQ 	respQ;		/* response Q */
+	unsigned long   stopped_tx_queues; /* bitmap of suspended Tx queues */
+	unsigned int	rx_pkt_pad;     /* RX padding for L2 packets */
+	unsigned int	jumbo_fl;       /* jumbo freelist Q index */
+	unsigned int	intrtimer_nres;	/* no-resource interrupt timer */
+	unsigned int	fixed_intrtimer;/* non-adaptive interrupt timer */
+	struct timer_list tx_reclaim_timer; /* reclaims TX buffers */
+	struct timer_list espibug_timer;
+	unsigned int	espibug_timeout;
+	struct sk_buff	*espibug_skb;
+	u32		sge_control;	/* shadow value of sge control reg */
+	struct sge_intr_counts stats;
+	struct sge_port_stats port_stats[MAX_NPORTS];
+	struct cmdQ cmdQ[SGE_CMDQ_N] ____cacheline_aligned_in_smp;
+};
+
+/*
+ * PIO to indicate that memory mapped Q contains valid descriptor(s).
+ */
+static inline void doorbell_pio(struct adapter *adapter, u32 val)
+{
+	wmb();
+	writel(val, adapter->regs + A_SG_DOORBELL);
+}
+
+/*
+ * Frees all RX buffers on the freelist Q. The caller must make sure that
+ * the SGE is turned off before calling this function.
+ */
+static void free_freelQ_buffers(struct pci_dev *pdev, struct freelQ *q)
+{
+	unsigned int cidx = q->cidx;
+
+	while (q->credits--) {
+		struct freelQ_ce *ce = &q->centries[cidx];
+
+		pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr),
+				 pci_unmap_len(ce, dma_len),
+				 PCI_DMA_FROMDEVICE);
+		dev_kfree_skb(ce->skb);
+		ce->skb = NULL;
+		if (++cidx == q->size)
+			cidx = 0;
+	}
+}
+
+/*
+ * Free RX free list and response queue resources.
+ */
+static void free_rx_resources(struct sge *sge)
+{
+	struct pci_dev *pdev = sge->adapter->pdev;
+	unsigned int size, i;
+
+	if (sge->respQ.entries) {
+		size = sizeof(struct respQ_e) * sge->respQ.size;
+		pci_free_consistent(pdev, size, sge->respQ.entries,
+				    sge->respQ.dma_addr);
+	}
+
+	for (i = 0; i < SGE_FREELQ_N; i++) {
+		struct freelQ *q = &sge->freelQ[i];
+
+		if (q->centries) {
+			free_freelQ_buffers(pdev, q);
+			kfree(q->centries);
+		}
+		if (q->entries) {
+			size = sizeof(struct freelQ_e) * q->size;
+			pci_free_consistent(pdev, size, q->entries,
+					    q->dma_addr);
+		}
+	}
+}
+
+/*
+ * Allocates basic RX resources, consisting of memory mapped freelist Qs and a
+ * response queue.
+ */
+static int alloc_rx_resources(struct sge *sge, struct sge_params *p)
+{
+	struct pci_dev *pdev = sge->adapter->pdev;
+	unsigned int size, i;
+
+	for (i = 0; i < SGE_FREELQ_N; i++) {
+		struct freelQ *q = &sge->freelQ[i];
+
+		q->genbit = 1;
+		q->size = p->freelQ_size[i];
+		q->dma_offset = sge->rx_pkt_pad ? 0 : NET_IP_ALIGN;
+		size = sizeof(struct freelQ_e) * q->size;
+		q->entries = (struct freelQ_e *)
+			      pci_alloc_consistent(pdev, size, &q->dma_addr);
+		if (!q->entries)
+			goto err_no_mem;
+		memset(q->entries, 0, size);
+		size = sizeof(struct freelQ_ce) * q->size;
+		q->centries = kmalloc(size, GFP_KERNEL);
+		if (!q->centries)
+			goto err_no_mem;
+		memset(q->centries, 0, size);
+	}
+
+	/*
+	 * Calculate the buffer sizes for the two free lists.  FL0 accommodates
+	 * regular sized Ethernet frames, FL1 is sized not to exceed 16K,
+	 * including all the sk_buff overhead.
+	 *
+	 * Note: For T2 FL0 and FL1 are reversed.
+	 */
+	sge->freelQ[!sge->jumbo_fl].rx_buffer_size = SGE_RX_SM_BUF_SIZE +
+		sizeof(struct cpl_rx_data) +
+		sge->freelQ[!sge->jumbo_fl].dma_offset;
+	sge->freelQ[sge->jumbo_fl].rx_buffer_size = (16 * 1024) -
+		SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
+	/*
+	 * Setup which skb recycle Q should be used when recycling buffers from
+	 * each free list.
+	 */
+	sge->freelQ[!sge->jumbo_fl].recycleq_idx = 0;
+	sge->freelQ[sge->jumbo_fl].recycleq_idx = 1;
+
+	sge->respQ.genbit = 1;
+	sge->respQ.size = SGE_RESPQ_E_N;
+	sge->respQ.credits = 0;
+	size = sizeof(struct respQ_e) * sge->respQ.size;
+	sge->respQ.entries = (struct respQ_e *)
+		pci_alloc_consistent(pdev, size, &sge->respQ.dma_addr);
+	if (!sge->respQ.entries)
+		goto err_no_mem;
+	memset(sge->respQ.entries, 0, size);
+	return 0;
+
+err_no_mem:
+	free_rx_resources(sge);
+	return -ENOMEM;
+}
+
+/*
+ * Reclaims n TX descriptors and frees the buffers associated with them.
+ */
+static void free_cmdQ_buffers(struct sge *sge, struct cmdQ *q, unsigned int n)
+{
+	struct cmdQ_ce *ce;
+	struct pci_dev *pdev = sge->adapter->pdev;
+	unsigned int cidx = q->cidx;
+
+	q->in_use -= n;
+	ce = &q->centries[cidx];
+	while (n--) {
+		if (q->sop)
+			pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr),
+			 		 pci_unmap_len(ce, dma_len),
+					 PCI_DMA_TODEVICE);
+		else
+			pci_unmap_page(pdev, pci_unmap_addr(ce, dma_addr),
+			 	       pci_unmap_len(ce, dma_len),
+				       PCI_DMA_TODEVICE);
+		q->sop = 0;
+		if (ce->skb) {
+			dev_kfree_skb(ce->skb);
+			q->sop = 1;
+		}
+		ce++;
+		if (++cidx == q->size) {
+			cidx = 0;
+			ce = q->centries;
+		}
+	}
+	q->cidx = cidx;
+}
+
+/*
+ * Free TX resources.
+ *
+ * Assumes that SGE is stopped and all interrupts are disabled.
+ */
+static void free_tx_resources(struct sge *sge)
+{
+	struct pci_dev *pdev = sge->adapter->pdev;
+	unsigned int size, i;
+
+	for (i = 0; i < SGE_CMDQ_N; i++) {
+		struct cmdQ *q = &sge->cmdQ[i];
+
+		if (q->centries) {
+			if (q->in_use)
+				free_cmdQ_buffers(sge, q, q->in_use);
+			kfree(q->centries);
+		}
+		if (q->entries) {
+			size = sizeof(struct cmdQ_e) * q->size;
+			pci_free_consistent(pdev, size, q->entries,
+					    q->dma_addr);
+		}
+	}
+}
+
+/*
+ * Allocates basic TX resources, consisting of memory mapped command Qs.
+ */
+static int alloc_tx_resources(struct sge *sge, struct sge_params *p)
+{
+	struct pci_dev *pdev = sge->adapter->pdev;
+	unsigned int size, i;
+
+	for (i = 0; i < SGE_CMDQ_N; i++) {
+		struct cmdQ *q = &sge->cmdQ[i];
+
+		q->genbit = 1;
+		q->sop = 1;
+		q->size = p->cmdQ_size[i];
+		q->in_use = 0;
+		q->status = 0;
+		q->processed = q->cleaned = 0;
+		q->stop_thres = 0;
+		spin_lock_init(&q->lock);
+		size = sizeof(struct cmdQ_e) * q->size;
+		q->entries = (struct cmdQ_e *)
+			      pci_alloc_consistent(pdev, size, &q->dma_addr);
+		if (!q->entries)
+			goto err_no_mem;
+		memset(q->entries, 0, size);
+		size = sizeof(struct cmdQ_ce) * q->size;
+		q->centries = kmalloc(size, GFP_KERNEL);
+		if (!q->centries)
+			goto err_no_mem;
+		memset(q->centries, 0, size);
+	}
+
+	/*
+	 * CommandQ 0 handles Ethernet and TOE packets, while queue 1 is TOE
+	 * only.  For queue 0 set the stop threshold so we can handle one more
+	 * packet from each port, plus reserve an additional 24 entries for
+	 * Ethernet packets only.  Queue 1 never suspends nor do we reserve
+	 * space for Ethernet packets.
+	 */
+	sge->cmdQ[0].stop_thres = sge->adapter->params.nports *
+		(MAX_SKB_FRAGS + 1);
+	return 0;
+
+err_no_mem:
+	free_tx_resources(sge);
+	return -ENOMEM;
+}
+
+static inline void setup_ring_params(struct adapter *adapter, u64 addr,
+				     u32 size, int base_reg_lo,
+				     int base_reg_hi, int size_reg)
+{
+	writel((u32)addr, adapter->regs + base_reg_lo);
+	writel(addr >> 32, adapter->regs + base_reg_hi);
+	writel(size, adapter->regs + size_reg);
+}
+
+/*
+ * Enable/disable VLAN acceleration.
+ */
+void t1_set_vlan_accel(struct adapter *adapter, int on_off)
+{
+	struct sge *sge = adapter->sge;
+
+	sge->sge_control &= ~F_VLAN_XTRACT;
+	if (on_off)
+		sge->sge_control |= F_VLAN_XTRACT;
+	if (adapter->open_device_map) {
+		writel(sge->sge_control, adapter->regs + A_SG_CONTROL);
+		readl(adapter->regs + A_SG_CONTROL); /* flush */
+	}
+}
+
+/*
+ * Programs the various SGE registers. However, the engine is not yet enabled,
+ * but sge->sge_control is setup and ready to go.
+ */
+static void configure_sge(struct sge *sge, struct sge_params *p)
+{
+	struct adapter *ap = sge->adapter;
+	
+	writel(0, ap->regs + A_SG_CONTROL);
+	setup_ring_params(ap, sge->cmdQ[0].dma_addr, sge->cmdQ[0].size,
+			  A_SG_CMD0BASELWR, A_SG_CMD0BASEUPR, A_SG_CMD0SIZE);
+	setup_ring_params(ap, sge->cmdQ[1].dma_addr, sge->cmdQ[1].size,
+			  A_SG_CMD1BASELWR, A_SG_CMD1BASEUPR, A_SG_CMD1SIZE);
+	setup_ring_params(ap, sge->freelQ[0].dma_addr,
+			  sge->freelQ[0].size, A_SG_FL0BASELWR,
+			  A_SG_FL0BASEUPR, A_SG_FL0SIZE);
+	setup_ring_params(ap, sge->freelQ[1].dma_addr,
+			  sge->freelQ[1].size, A_SG_FL1BASELWR,
+			  A_SG_FL1BASEUPR, A_SG_FL1SIZE);
+
+	/* The threshold comparison uses <. */
+	writel(SGE_RX_SM_BUF_SIZE + 1, ap->regs + A_SG_FLTHRESHOLD);
+
+	setup_ring_params(ap, sge->respQ.dma_addr, sge->respQ.size,
+			  A_SG_RSPBASELWR, A_SG_RSPBASEUPR, A_SG_RSPSIZE);
+	writel((u32)sge->respQ.size - 1, ap->regs + A_SG_RSPQUEUECREDIT);
+
+	sge->sge_control = F_CMDQ0_ENABLE | F_CMDQ1_ENABLE | F_FL0_ENABLE |
+		F_FL1_ENABLE | F_CPL_ENABLE | F_RESPONSE_QUEUE_ENABLE |
+		V_CMDQ_PRIORITY(2) | F_DISABLE_CMDQ1_GTS | F_ISCSI_COALESCE |
+		F_DISABLE_FL0_GTS | F_DISABLE_FL1_GTS |
+		V_RX_PKT_OFFSET(sge->rx_pkt_pad);
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+	sge->sge_control |= F_ENABLE_BIG_ENDIAN;
+#endif
+
+	/* Initialize no-resource timer */
+	sge->intrtimer_nres = SGE_INTRTIMER_NRES * core_ticks_per_usec(ap);
+
+	t1_sge_set_coalesce_params(sge, p);
+}
+
+/*
+ * Return the payload capacity of the jumbo free-list buffers.
+ */
+static inline unsigned int jumbo_payload_capacity(const struct sge *sge)
+{
+	return sge->freelQ[sge->jumbo_fl].rx_buffer_size -
+		sge->freelQ[sge->jumbo_fl].dma_offset -
+		sizeof(struct cpl_rx_data);
+}
+
+/*
+ * Frees all SGE related resources and the sge structure itself
+ */
+void t1_sge_destroy(struct sge *sge)
+{
+	if (sge->espibug_skb)
+		kfree_skb(sge->espibug_skb);
+
+	free_tx_resources(sge);
+	free_rx_resources(sge);
+	kfree(sge);
+}
+
+/*
+ * Allocates new RX buffers on the freelist Q (and tracks them on the freelist
+ * context Q) until the Q is full or alloc_skb fails.
+ *
+ * It is possible that the generation bits already match, indicating that the
+ * buffer is already valid and nothing needs to be done. This happens when we
+ * copied a received buffer into a new sk_buff during the interrupt processing.
+ *
+ * If the SGE doesn't automatically align packets properly (!sge->rx_pkt_pad),
+ * we specify a RX_OFFSET in order to make sure that the IP header is 4B
+ * aligned.
+ */
+static void refill_free_list(struct sge *sge, struct freelQ *q)
+{
+	struct pci_dev *pdev = sge->adapter->pdev;
+	struct freelQ_ce *ce = &q->centries[q->pidx];
+	struct freelQ_e *e = &q->entries[q->pidx];
+	unsigned int dma_len = q->rx_buffer_size - q->dma_offset;
+
+
+	while (q->credits < q->size) {
+		struct sk_buff *skb;
+		dma_addr_t mapping;
+
+		skb = alloc_skb(q->rx_buffer_size, GFP_ATOMIC);
+		if (!skb)
+			break;
+
+		skb_reserve(skb, q->dma_offset);
+		mapping = pci_map_single(pdev, skb->data, dma_len,
+					 PCI_DMA_FROMDEVICE);
+		ce->skb = skb;
+		pci_unmap_addr_set(ce, dma_addr, mapping);
+		pci_unmap_len_set(ce, dma_len, dma_len);
+		e->addr_lo = (u32)mapping;
+		e->addr_hi = (u64)mapping >> 32;
+		e->len_gen = V_CMD_LEN(dma_len) | V_CMD_GEN1(q->genbit);
+		wmb();
+		e->gen2 = V_CMD_GEN2(q->genbit);
+
+		e++;
+		ce++;
+		if (++q->pidx == q->size) {
+			q->pidx = 0;
+			q->genbit ^= 1;
+			ce = q->centries;
+			e = q->entries;
+		}
+		q->credits++;
+	}
+
+}
+
+/*
+ * Calls refill_free_list for both free lists. If we cannot fill at least 1/4
+ * of both rings, we go into 'few interrupt mode' in order to give the system
+ * time to free up resources.
+ */
+static void freelQs_empty(struct sge *sge)
+{
+	struct adapter *adapter = sge->adapter;
+	u32 irq_reg = readl(adapter->regs + A_SG_INT_ENABLE);
+	u32 irqholdoff_reg;
+
+	refill_free_list(sge, &sge->freelQ[0]);
+	refill_free_list(sge, &sge->freelQ[1]);
+
+	if (sge->freelQ[0].credits > (sge->freelQ[0].size >> 2) &&
+	    sge->freelQ[1].credits > (sge->freelQ[1].size >> 2)) {
+		irq_reg |= F_FL_EXHAUSTED;
+		irqholdoff_reg = sge->fixed_intrtimer;
+	} else {
+		/* Clear the F_FL_EXHAUSTED interrupts for now */
+		irq_reg &= ~F_FL_EXHAUSTED;
+		irqholdoff_reg = sge->intrtimer_nres;
+	}
+	writel(irqholdoff_reg, adapter->regs + A_SG_INTRTIMER);
+	writel(irq_reg, adapter->regs + A_SG_INT_ENABLE);
+
+	/* We reenable the Qs to force a freelist GTS interrupt later */
+	doorbell_pio(adapter, F_FL0_ENABLE | F_FL1_ENABLE);
+}
+
+#define SGE_PL_INTR_MASK (F_PL_INTR_SGE_ERR | F_PL_INTR_SGE_DATA)
+#define SGE_INT_FATAL (F_RESPQ_OVERFLOW | F_PACKET_TOO_BIG | F_PACKET_MISMATCH)
+#define SGE_INT_ENABLE (F_RESPQ_EXHAUSTED | F_RESPQ_OVERFLOW | \
+			F_FL_EXHAUSTED | F_PACKET_TOO_BIG | F_PACKET_MISMATCH)
+
+/*
+ * Disable SGE Interrupts
+ */
+void t1_sge_intr_disable(struct sge *sge)
+{
+	u32 val = readl(sge->adapter->regs + A_PL_ENABLE);
+
+	writel(val & ~SGE_PL_INTR_MASK, sge->adapter->regs + A_PL_ENABLE);
+	writel(0, sge->adapter->regs + A_SG_INT_ENABLE);
+}
+
+/*
+ * Enable SGE interrupts.
+ */
+void t1_sge_intr_enable(struct sge *sge)
+{
+	u32 en = SGE_INT_ENABLE;
+	u32 val = readl(sge->adapter->regs + A_PL_ENABLE);
+
+	if (sge->adapter->flags & TSO_CAPABLE)
+		en &= ~F_PACKET_TOO_BIG;
+	writel(en, sge->adapter->regs + A_SG_INT_ENABLE);
+	writel(val | SGE_PL_INTR_MASK, sge->adapter->regs + A_PL_ENABLE);
+}
+
+/*
+ * Clear SGE interrupts.
+ */
+void t1_sge_intr_clear(struct sge *sge)
+{
+	writel(SGE_PL_INTR_MASK, sge->adapter->regs + A_PL_CAUSE);
+	writel(0xffffffff, sge->adapter->regs + A_SG_INT_CAUSE);
+}
+
+/*
+ * SGE 'Error' interrupt handler
+ */
+int t1_sge_intr_error_handler(struct sge *sge)
+{
+	struct adapter *adapter = sge->adapter;
+	u32 cause = readl(adapter->regs + A_SG_INT_CAUSE);
+
+	if (adapter->flags & TSO_CAPABLE)
+		cause &= ~F_PACKET_TOO_BIG;
+	if (cause & F_RESPQ_EXHAUSTED)
+		sge->stats.respQ_empty++;
+	if (cause & F_RESPQ_OVERFLOW) {
+		sge->stats.respQ_overflow++;
+		CH_ALERT("%s: SGE response queue overflow\n",
+			 adapter->name);
+	}
+	if (cause & F_FL_EXHAUSTED) {
+		sge->stats.freelistQ_empty++;
+		freelQs_empty(sge);
+	}
+	if (cause & F_PACKET_TOO_BIG) {
+		sge->stats.pkt_too_big++;
+		CH_ALERT("%s: SGE max packet size exceeded\n",
+			 adapter->name);
+	}
+	if (cause & F_PACKET_MISMATCH) {
+		sge->stats.pkt_mismatch++;
+		CH_ALERT("%s: SGE packet mismatch\n", adapter->name);
+	}
+	if (cause & SGE_INT_FATAL)
+		t1_fatal_err(adapter);
+
+	writel(cause, adapter->regs + A_SG_INT_CAUSE);
+	return 0;
+}
+
+const struct sge_intr_counts *t1_sge_get_intr_counts(struct sge *sge)
+{
+	return &sge->stats;
+}
+
+const struct sge_port_stats *t1_sge_get_port_stats(struct sge *sge, int port)
+{
+	return &sge->port_stats[port];
+}
+
+/**
+ *	recycle_fl_buf - recycle a free list buffer
+ *	@fl: the free list
+ *	@idx: index of buffer to recycle
+ *
+ *	Recycles the specified buffer on the given free list by adding it at
+ *	the next available slot on the list.
+ */
+static void recycle_fl_buf(struct freelQ *fl, int idx)
+{
+	struct freelQ_e *from = &fl->entries[idx];
+	struct freelQ_e *to = &fl->entries[fl->pidx];
+
+	fl->centries[fl->pidx] = fl->centries[idx];
+	to->addr_lo = from->addr_lo;
+	to->addr_hi = from->addr_hi;
+	to->len_gen = G_CMD_LEN(from->len_gen) | V_CMD_GEN1(fl->genbit);
+	wmb();
+	to->gen2 = V_CMD_GEN2(fl->genbit);
+	fl->credits++;
+
+	if (++fl->pidx == fl->size) {
+		fl->pidx = 0;
+		fl->genbit ^= 1;
+	}
+}
+
+/**
+ *	get_packet - return the next ingress packet buffer
+ *	@pdev: the PCI device that received the packet
+ *	@fl: the SGE free list holding the packet
+ *	@len: the actual packet length, excluding any SGE padding
+ *	@dma_pad: padding at beginning of buffer left by SGE DMA
+ *	@skb_pad: padding to be used if the packet is copied
+ *	@copy_thres: length threshold under which a packet should be copied
+ *	@drop_thres: # of remaining buffers before we start dropping packets
+ *
+ *	Get the next packet from a free list and complete setup of the
+ *	sk_buff.  If the packet is small we make a copy and recycle the
+ *	original buffer, otherwise we use the original buffer itself.  If a
+ *	positive drop threshold is supplied packets are dropped and their
+ *	buffers recycled if (a) the number of remaining buffers is under the
+ *	threshold and the packet is too big to copy, or (b) the packet should
+ *	be copied but there is no memory for the copy.
+ */
+static inline struct sk_buff *get_packet(struct pci_dev *pdev,
+					 struct freelQ *fl, unsigned int len,
+					 int dma_pad, int skb_pad,
+					 unsigned int copy_thres,
+					 unsigned int drop_thres)
+{
+	struct sk_buff *skb;
+	struct freelQ_ce *ce = &fl->centries[fl->cidx];
+
+	if (len < copy_thres) {
+		skb = alloc_skb(len + skb_pad, GFP_ATOMIC);
+		if (likely(skb != NULL)) {
+			skb_reserve(skb, skb_pad);
+			skb_put(skb, len);
+			pci_dma_sync_single_for_cpu(pdev,
+					    pci_unmap_addr(ce, dma_addr),
+ 					    pci_unmap_len(ce, dma_len),
+					    PCI_DMA_FROMDEVICE);
+			memcpy(skb->data, ce->skb->data + dma_pad, len);
+			pci_dma_sync_single_for_device(pdev,
+					    pci_unmap_addr(ce, dma_addr),
+ 					    pci_unmap_len(ce, dma_len),
+					    PCI_DMA_FROMDEVICE);
+		} else if (!drop_thres)
+			goto use_orig_buf;
+
+		recycle_fl_buf(fl, fl->cidx);
+		return skb;
+	}
+
+	if (fl->credits < drop_thres) {
+		recycle_fl_buf(fl, fl->cidx);
+		return NULL;
+	}
+
+use_orig_buf:
+	pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr),
+			 pci_unmap_len(ce, dma_len), PCI_DMA_FROMDEVICE);
+	skb = ce->skb;
+	skb_reserve(skb, dma_pad);
+	skb_put(skb, len);
+	return skb;
+}
+
+/**
+ *	unexpected_offload - handle an unexpected offload packet
+ *	@adapter: the adapter
+ *	@fl: the free list that received the packet
+ *
+ *	Called when we receive an unexpected offload packet (e.g., the TOE
+ *	function is disabled or the card is a NIC).  Prints a message and
+ *	recycles the buffer.
+ */
+static void unexpected_offload(struct adapter *adapter, struct freelQ *fl)
+{
+	struct freelQ_ce *ce = &fl->centries[fl->cidx];
+	struct sk_buff *skb = ce->skb;
+
+	pci_dma_sync_single_for_cpu(adapter->pdev, pci_unmap_addr(ce, dma_addr),
+			    pci_unmap_len(ce, dma_len), PCI_DMA_FROMDEVICE);
+	CH_ERR("%s: unexpected offload packet, cmd %u\n",
+	       adapter->name, *skb->data);
+	recycle_fl_buf(fl, fl->cidx);
+}
+
+/*
+ * Write the command descriptors to transmit the given skb starting at
+ * descriptor pidx with the given generation.
+ */
+static inline void write_tx_descs(struct adapter *adapter, struct sk_buff *skb,
+				  unsigned int pidx, unsigned int gen,
+				  struct cmdQ *q)
+{
+	dma_addr_t mapping;
+	struct cmdQ_e *e, *e1;
+	struct cmdQ_ce *ce;
+	unsigned int i, flags, nfrags = skb_shinfo(skb)->nr_frags;
+
+	mapping = pci_map_single(adapter->pdev, skb->data,
+				 skb->len - skb->data_len, PCI_DMA_TODEVICE);
+	ce = &q->centries[pidx];
+	ce->skb = NULL;
+	pci_unmap_addr_set(ce, dma_addr, mapping);
+	pci_unmap_len_set(ce, dma_len, skb->len - skb->data_len);
+
+	flags = F_CMD_DATAVALID | F_CMD_SOP | V_CMD_EOP(nfrags == 0) |
+		V_CMD_GEN2(gen);
+	e = &q->entries[pidx];
+	e->addr_lo = (u32)mapping;
+	e->addr_hi = (u64)mapping >> 32;
+	e->len_gen = V_CMD_LEN(skb->len - skb->data_len) | V_CMD_GEN1(gen);
+	for (e1 = e, i = 0; nfrags--; i++) {
+		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+		ce++;
+		e1++;
+		if (++pidx == q->size) {
+			pidx = 0;
+			gen ^= 1;
+			ce = q->centries;
+			e1 = q->entries;
+		}
+
+		mapping = pci_map_page(adapter->pdev, frag->page,
+				       frag->page_offset, frag->size,
+				       PCI_DMA_TODEVICE);
+		ce->skb = NULL;
+		pci_unmap_addr_set(ce, dma_addr, mapping);
+		pci_unmap_len_set(ce, dma_len, frag->size);
+
+		e1->addr_lo = (u32)mapping;
+		e1->addr_hi = (u64)mapping >> 32;
+		e1->len_gen = V_CMD_LEN(frag->size) | V_CMD_GEN1(gen);
+		e1->flags = F_CMD_DATAVALID | V_CMD_EOP(nfrags == 0) |
+			    V_CMD_GEN2(gen);
+	}
+
+	ce->skb = skb;
+	wmb();
+	e->flags = flags;
+}
+
+/*
+ * Clean up completed Tx buffers.
+ */
+static inline void reclaim_completed_tx(struct sge *sge, struct cmdQ *q)
+{
+	unsigned int reclaim = q->processed - q->cleaned;
+
+	if (reclaim) {
+		free_cmdQ_buffers(sge, q, reclaim);
+		q->cleaned += reclaim;
+	}
+}
+
+#ifndef SET_ETHTOOL_OPS
+# define __netif_rx_complete(dev) netif_rx_complete(dev)
+#endif
+
+/*
+ * We cannot use the standard netif_rx_schedule_prep() because we have multiple
+ * ports plus the TOE all multiplexing onto a single response queue, therefore
+ * accepting new responses cannot depend on the state of any particular port.
+ * So define our own equivalent that omits the netif_running() test.
+ */
+static inline int napi_schedule_prep(struct net_device *dev)
+{
+	return !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+
+/**
+ *	sge_rx - process an ingress ethernet packet
+ *	@sge: the sge structure
+ *	@fl: the free list that contains the packet buffer
+ *	@len: the packet length
+ *
+ *	Process an ingress ethernet pakcet and deliver it to the stack.
+ */
+static int sge_rx(struct sge *sge, struct freelQ *fl, unsigned int len)
+{
+	struct sk_buff *skb;
+	struct cpl_rx_pkt *p;
+	struct adapter *adapter = sge->adapter;
+
+	sge->stats.ethernet_pkts++;
+	skb = get_packet(adapter->pdev, fl, len - sge->rx_pkt_pad,
+			 sge->rx_pkt_pad, 2, SGE_RX_COPY_THRES,
+			 SGE_RX_DROP_THRES);
+	if (!skb) {
+		sge->port_stats[0].rx_drops++; /* charge only port 0 for now */
+		return 0;
+	}
+
+	p = (struct cpl_rx_pkt *)skb->data;
+	skb_pull(skb, sizeof(*p));
+	skb->dev = adapter->port[p->iff].dev;
+	skb->dev->last_rx = jiffies;
+	skb->protocol = eth_type_trans(skb, skb->dev);
+	if ((adapter->flags & RX_CSUM_ENABLED) && p->csum == 0xffff &&
+	    skb->protocol == htons(ETH_P_IP) &&
+	    (skb->data[9] == IPPROTO_TCP || skb->data[9] == IPPROTO_UDP)) {
+		sge->port_stats[p->iff].rx_cso_good++;
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+	} else
+		skb->ip_summed = CHECKSUM_NONE;
+
+	if (unlikely(adapter->vlan_grp && p->vlan_valid)) {
+		sge->port_stats[p->iff].vlan_xtract++;
+		if (adapter->params.sge.polling)
+			vlan_hwaccel_receive_skb(skb, adapter->vlan_grp,
+						 ntohs(p->vlan));
+		else
+			vlan_hwaccel_rx(skb, adapter->vlan_grp,
+					ntohs(p->vlan));
+	} else if (adapter->params.sge.polling)
+		netif_receive_skb(skb);
+	else
+		netif_rx(skb);
+	return 0;
+}
+
+/*
+ * Returns true if a command queue has enough available descriptors that
+ * we can resume Tx operation after temporarily disabling its packet queue.
+ */
+static inline int enough_free_Tx_descs(const struct cmdQ *q)
+{
+	unsigned int r = q->processed - q->cleaned;
+
+	return q->in_use - r < (q->size >> 1);
+}
+
+/*
+ * Called when sufficient space has become available in the SGE command queues
+ * after the Tx packet schedulers have been suspended to restart the Tx path.
+ */
+static void restart_tx_queues(struct sge *sge)
+{
+	struct adapter *adap = sge->adapter;
+
+	if (enough_free_Tx_descs(&sge->cmdQ[0])) {
+		int i;
+
+		for_each_port(adap, i) {
+			struct net_device *nd = adap->port[i].dev;
+
+			if (test_and_clear_bit(nd->if_port,
+					       &sge->stopped_tx_queues) &&
+			    netif_running(nd)) {
+				sge->stats.cmdQ_restarted[3]++;
+				netif_wake_queue(nd);
+			}
+		}
+	}
+}
+
+/*
+ * update_tx_info is called from the interrupt handler/NAPI to return cmdQ0 
+ * information.
+ */
+static unsigned int update_tx_info(struct adapter *adapter, 
+					  unsigned int flags, 
+					  unsigned int pr0)
+{
+	struct sge *sge = adapter->sge;
+	struct cmdQ *cmdq = &sge->cmdQ[0];
+
+	cmdq->processed += pr0;
+
+	if (flags & F_CMDQ0_ENABLE) {
+		clear_bit(CMDQ_STAT_RUNNING, &cmdq->status);
+	
+		if (cmdq->cleaned + cmdq->in_use != cmdq->processed &&
+		    !test_and_set_bit(CMDQ_STAT_LAST_PKT_DB, &cmdq->status)) {
+			set_bit(CMDQ_STAT_RUNNING, &cmdq->status);
+			writel(F_CMDQ0_ENABLE, adapter->regs + A_SG_DOORBELL);
+		}
+	 	flags &= ~F_CMDQ0_ENABLE;
+	}
+	
+	if (unlikely(sge->stopped_tx_queues != 0))
+		restart_tx_queues(sge);
+
+	return flags;
+}
+
+/*
+ * Process SGE responses, up to the supplied budget.  Returns the number of
+ * responses processed.  A negative budget is effectively unlimited.
+ */
+static int process_responses(struct adapter *adapter, int budget)
+{
+	struct sge *sge = adapter->sge;
+	struct respQ *q = &sge->respQ;
+	struct respQ_e *e = &q->entries[q->cidx];
+	int budget_left = budget;
+	unsigned int flags = 0;
+	unsigned int cmdq_processed[SGE_CMDQ_N] = {0, 0};
+	
+
+	while (likely(budget_left && e->GenerationBit == q->genbit)) {
+		flags |= e->Qsleeping;
+		
+		cmdq_processed[0] += e->Cmdq0CreditReturn;
+		cmdq_processed[1] += e->Cmdq1CreditReturn;
+		
+		/* We batch updates to the TX side to avoid cacheline
+		 * ping-pong of TX state information on MP where the sender
+		 * might run on a different CPU than this function...
+		 */
+		if (unlikely(flags & F_CMDQ0_ENABLE || cmdq_processed[0] > 64)) {
+			flags = update_tx_info(adapter, flags, cmdq_processed[0]);
+			cmdq_processed[0] = 0;
+		}
+		if (unlikely(cmdq_processed[1] > 16)) {
+			sge->cmdQ[1].processed += cmdq_processed[1];
+			cmdq_processed[1] = 0;
+		}
+		if (likely(e->DataValid)) {
+			struct freelQ *fl = &sge->freelQ[e->FreelistQid];
+
+			if (unlikely(!e->Sop || !e->Eop))
+				BUG();
+			if (unlikely(e->Offload))
+				unexpected_offload(adapter, fl);
+			else
+				sge_rx(sge, fl, e->BufferLength);
+
+			/*
+			 * Note: this depends on each packet consuming a
+			 * single free-list buffer; cf. the BUG above.
+			 */
+			if (++fl->cidx == fl->size)
+				fl->cidx = 0;
+			if (unlikely(--fl->credits <
+				     fl->size - SGE_FREEL_REFILL_THRESH))
+				refill_free_list(sge, fl);
+		} else
+			sge->stats.pure_rsps++;
+
+		e++;
+		if (unlikely(++q->cidx == q->size)) {
+			q->cidx = 0;
+			q->genbit ^= 1;
+			e = q->entries;
+		}
+		prefetch(e);
+
+		if (++q->credits > SGE_RESPQ_REPLENISH_THRES) {
+			writel(q->credits, adapter->regs + A_SG_RSPQUEUECREDIT);
+			q->credits = 0;
+		}
+		--budget_left;
+	}
+
+	flags = update_tx_info(adapter, flags, cmdq_processed[0]); 
+	sge->cmdQ[1].processed += cmdq_processed[1];
+
+	budget -= budget_left;
+	return budget;
+}
+
+/*
+ * A simpler version of process_responses() that handles only pure (i.e.,
+ * non data-carrying) responses.  Such respones are too light-weight to justify
+ * calling a softirq when using NAPI, so we handle them specially in hard
+ * interrupt context.  The function is called with a pointer to a response,
+ * which the caller must ensure is a valid pure response.  Returns 1 if it
+ * encounters a valid data-carrying response, 0 otherwise.
+ */
+static int process_pure_responses(struct adapter *adapter, struct respQ_e *e)
+{
+	struct sge *sge = adapter->sge;
+	struct respQ *q = &sge->respQ;
+	unsigned int flags = 0;
+	unsigned int cmdq_processed[SGE_CMDQ_N] = {0, 0};
+
+	do {
+		flags |= e->Qsleeping;
+
+		cmdq_processed[0] += e->Cmdq0CreditReturn;
+		cmdq_processed[1] += e->Cmdq1CreditReturn;
+		
+		e++;
+		if (unlikely(++q->cidx == q->size)) {
+			q->cidx = 0;
+			q->genbit ^= 1;
+			e = q->entries;
+		}
+		prefetch(e);
+
+		if (++q->credits > SGE_RESPQ_REPLENISH_THRES) {
+			writel(q->credits, adapter->regs + A_SG_RSPQUEUECREDIT);
+			q->credits = 0;
+		}
+		sge->stats.pure_rsps++;
+	} while (e->GenerationBit == q->genbit && !e->DataValid);
+
+	flags = update_tx_info(adapter, flags, cmdq_processed[0]); 
+	sge->cmdQ[1].processed += cmdq_processed[1];
+
+	return e->GenerationBit == q->genbit;
+}
+
+/*
+ * Handler for new data events when using NAPI.  This does not need any locking
+ * or protection from interrupts as data interrupts are off at this point and
+ * other adapter interrupts do not interfere.
+ */
+static int t1_poll(struct net_device *dev, int *budget)
+{
+	struct adapter *adapter = dev->priv;
+	int effective_budget = min(*budget, dev->quota);
+
+	int work_done = process_responses(adapter, effective_budget);
+	*budget -= work_done;
+	dev->quota -= work_done;
+
+	if (work_done >= effective_budget)
+		return 1;
+
+	__netif_rx_complete(dev);
+
+	/*
+	 * Because we don't atomically flush the following write it is
+	 * possible that in very rare cases it can reach the device in a way
+	 * that races with a new response being written plus an error interrupt
+	 * causing the NAPI interrupt handler below to return unhandled status
+	 * to the OS.  To protect against this would require flushing the write
+	 * and doing both the write and the flush with interrupts off.  Way too
+	 * expensive and unjustifiable given the rarity of the race.
+	 */
+	writel(adapter->sge->respQ.cidx, adapter->regs + A_SG_SLEEPING);
+	return 0;
+}
+
+/*
+ * Returns true if the device is already scheduled for polling.
+ */
+static inline int napi_is_scheduled(struct net_device *dev)
+{
+	return test_bit(__LINK_STATE_RX_SCHED, &dev->state);
+}
+
+/*
+ * NAPI version of the main interrupt handler.
+ */
+static irqreturn_t t1_interrupt_napi(int irq, void *data, struct pt_regs *regs)
+{
+	int handled;
+	struct adapter *adapter = data;
+	struct sge *sge = adapter->sge;
+	struct respQ *q = &adapter->sge->respQ;
+
+	/*
+	 * Clear the SGE_DATA interrupt first thing.  Normally the NAPI
+	 * handler has control of the response queue and the interrupt handler
+	 * can look at the queue reliably only once it knows NAPI is off.
+	 * We can't wait that long to clear the SGE_DATA interrupt because we
+	 * could race with t1_poll rearming the SGE interrupt, so we need to
+	 * clear the interrupt speculatively and really early on.
+	 */
+	writel(F_PL_INTR_SGE_DATA, adapter->regs + A_PL_CAUSE);
+
+	spin_lock(&adapter->async_lock);
+	if (!napi_is_scheduled(sge->netdev)) {
+		struct respQ_e *e = &q->entries[q->cidx];
+
+		if (e->GenerationBit == q->genbit) {
+			if (e->DataValid ||
+			    process_pure_responses(adapter, e)) {
+				if (likely(napi_schedule_prep(sge->netdev)))
+					__netif_rx_schedule(sge->netdev);
+				else
+					printk(KERN_CRIT
+					       "NAPI schedule failure!\n");
+			} else
+			writel(q->cidx, adapter->regs + A_SG_SLEEPING);
+			handled = 1;
+			goto unlock;
+		} else
+		writel(q->cidx, adapter->regs + A_SG_SLEEPING);
+	}  else
+	if (readl(adapter->regs + A_PL_CAUSE) & F_PL_INTR_SGE_DATA)
+		printk(KERN_ERR "data interrupt while NAPI running\n");
+	
+	handled = t1_slow_intr_handler(adapter);
+	if (!handled)
+		sge->stats.unhandled_irqs++;
+ unlock:
+	spin_unlock(&adapter->async_lock);
+	return IRQ_RETVAL(handled != 0);
+}
+
+/*
+ * Main interrupt handler, optimized assuming that we took a 'DATA'
+ * interrupt.
+ *
+ * 1. Clear the interrupt
+ * 2. Loop while we find valid descriptors and process them; accumulate
+ *      information that can be processed after the loop
+ * 3. Tell the SGE at which index we stopped processing descriptors
+ * 4. Bookkeeping; free TX buffers, ring doorbell if there are any
+ *      outstanding TX buffers waiting, replenish RX buffers, potentially
+ *      reenable upper layers if they were turned off due to lack of TX
+ *      resources which are available again.
+ * 5. If we took an interrupt, but no valid respQ descriptors was found we
+ *      let the slow_intr_handler run and do error handling.
+ */
+static irqreturn_t t1_interrupt(int irq, void *cookie, struct pt_regs *regs)
+{
+	int work_done;
+	struct respQ_e *e;
+	struct adapter *adapter = cookie;
+	struct respQ *Q = &adapter->sge->respQ;
+
+	spin_lock(&adapter->async_lock);
+	e = &Q->entries[Q->cidx];
+	prefetch(e);
+
+	writel(F_PL_INTR_SGE_DATA, adapter->regs + A_PL_CAUSE);
+
+	if (likely(e->GenerationBit == Q->genbit))
+		work_done = process_responses(adapter, -1);
+	else
+		work_done = t1_slow_intr_handler(adapter);
+
+	/*
+	 * The unconditional clearing of the PL_CAUSE above may have raced
+	 * with DMA completion and the corresponding generation of a response
+	 * to cause us to miss the resulting data interrupt.  The next write
+	 * is also unconditional to recover the missed interrupt and render
+	 * this race harmless.
+	 */
+	writel(Q->cidx, adapter->regs + A_SG_SLEEPING);
+
+	if (!work_done)
+		adapter->sge->stats.unhandled_irqs++;
+	spin_unlock(&adapter->async_lock);
+	return IRQ_RETVAL(work_done != 0);
+}
+
+intr_handler_t t1_select_intr_handler(adapter_t *adapter)
+{
+	return adapter->params.sge.polling ? t1_interrupt_napi : t1_interrupt;
+}
+
+/*
+ * Enqueues the sk_buff onto the cmdQ[qid] and has hardware fetch it.
+ *
+ * The code figures out how many entries the sk_buff will require in the
+ * cmdQ and updates the cmdQ data structure with the state once the enqueue
+ * has complete. Then, it doesn't access the global structure anymore, but
+ * uses the corresponding fields on the stack. In conjuction with a spinlock
+ * around that code, we can make the function reentrant without holding the
+ * lock when we actually enqueue (which might be expensive, especially on
+ * architectures with IO MMUs).
+ *
+ * This runs with softirqs disabled.
+ */
+unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter,
+		       unsigned int qid, struct net_device *dev)
+{
+	struct sge *sge = adapter->sge;
+	struct cmdQ *q = &sge->cmdQ[qid];
+	unsigned int credits, pidx, genbit, count;
+
+	spin_lock(&q->lock);
+	reclaim_completed_tx(sge, q);
+
+	pidx = q->pidx;
+	credits = q->size - q->in_use;
+	count = 1 + skb_shinfo(skb)->nr_frags;
+
+	{	/* Ethernet packet */
+	 	if (unlikely(credits < count)) {
+			netif_stop_queue(dev);
+			set_bit(dev->if_port, &sge->stopped_tx_queues);
+			sge->stats.cmdQ_full[3]++;
+			spin_unlock(&q->lock);
+			CH_ERR("%s: Tx ring full while queue awake!\n",
+			       adapter->name);
+			return 1;
+		}
+		if (unlikely(credits - count < q->stop_thres)) {
+			sge->stats.cmdQ_full[3]++;
+			netif_stop_queue(dev);
+			set_bit(dev->if_port, &sge->stopped_tx_queues);
+		}
+	}
+	q->in_use += count;
+	genbit = q->genbit;
+	q->pidx += count;
+	if (q->pidx >= q->size) {
+		q->pidx -= q->size;
+		q->genbit ^= 1;
+	}
+	spin_unlock(&q->lock);
+
+	write_tx_descs(adapter, skb, pidx, genbit, q);
+
+	/*
+	 * We always ring the doorbell for cmdQ1.  For cmdQ0, we only ring
+	 * the doorbell if the Q is asleep. There is a natural race, where
+	 * the hardware is going to sleep just after we checked, however,
+	 * then the interrupt handler will detect the outstanding TX packet
+	 * and ring the doorbell for us.
+	 */
+	if (qid)
+		doorbell_pio(adapter, F_CMDQ1_ENABLE);
+	else {
+		clear_bit(CMDQ_STAT_LAST_PKT_DB, &q->status);
+		if (test_and_set_bit(CMDQ_STAT_RUNNING, &q->status) == 0) {
+			set_bit(CMDQ_STAT_LAST_PKT_DB, &q->status);
+			writel(F_CMDQ0_ENABLE, adapter->regs + A_SG_DOORBELL);
+		}
+	}
+	return 0;
+}
+
+#define MK_ETH_TYPE_MSS(type, mss) (((mss) & 0x3FFF) | ((type) << 14))
+
+/*
+ *	eth_hdr_len - return the length of an Ethernet header
+ *	@data: pointer to the start of the Ethernet header
+ *
+ *	Returns the length of an Ethernet header, including optional VLAN tag.
+ */
+static inline int eth_hdr_len(const void *data)
+{
+	const struct ethhdr *e = data;
+
+	return e->h_proto == htons(ETH_P_8021Q) ? VLAN_ETH_HLEN : ETH_HLEN;
+}
+
+/*
+ * Adds the CPL header to the sk_buff and passes it to t1_sge_tx.
+ */
+int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct adapter *adapter = dev->priv;
+	struct sge_port_stats *st = &adapter->sge->port_stats[dev->if_port];
+	struct sge *sge = adapter->sge;
+	struct cpl_tx_pkt *cpl;
+
+#ifdef NETIF_F_TSO
+	if (skb_shinfo(skb)->tso_size) {
+		int eth_type;
+		struct cpl_tx_pkt_lso *hdr;
+
+		st->tso++;
+
+		eth_type = skb->nh.raw - skb->data == ETH_HLEN ?
+			CPL_ETH_II : CPL_ETH_II_VLAN;
+
+		hdr = (struct cpl_tx_pkt_lso *)skb_push(skb, sizeof(*hdr));
+		hdr->opcode = CPL_TX_PKT_LSO;
+		hdr->ip_csum_dis = hdr->l4_csum_dis = 0;
+		hdr->ip_hdr_words = skb->nh.iph->ihl;
+		hdr->tcp_hdr_words = skb->h.th->doff;
+		hdr->eth_type_mss = htons(MK_ETH_TYPE_MSS(eth_type,
+						skb_shinfo(skb)->tso_size));
+		hdr->len = htonl(skb->len - sizeof(*hdr));
+		cpl = (struct cpl_tx_pkt *)hdr;
+		sge->stats.tx_lso_pkts++;
+	} else
+#endif
+	{
+		/*
+	 	 * Packets shorter than ETH_HLEN can break the MAC, drop them
+		 * early.  Also, we may get oversized packets because some
+		 * parts of the kernel don't handle our unusual hard_header_len
+		 * right, drop those too.
+		 */
+		if (unlikely(skb->len < ETH_HLEN ||
+			     skb->len > dev->mtu + eth_hdr_len(skb->data))) {
+			dev_kfree_skb_any(skb);
+			return NET_XMIT_SUCCESS;
+		}
+
+		/*
+		 * We are using a non-standard hard_header_len and some kernel
+		 * components, such as pktgen, do not handle it right.
+		 * Complain when this happens but try to fix things up.
+		 */
+		if (unlikely(skb_headroom(skb) <
+			     dev->hard_header_len - ETH_HLEN)) {
+			struct sk_buff *orig_skb = skb;
+
+			if (net_ratelimit())
+				printk(KERN_ERR "%s: inadequate headroom in "
+				       "Tx packet\n", dev->name);
+			skb = skb_realloc_headroom(skb, sizeof(*cpl));
+			dev_kfree_skb_any(orig_skb);
+			if (!skb)
+				return -ENOMEM;
+		}
+
+		if (!(adapter->flags & UDP_CSUM_CAPABLE) &&
+		    skb->ip_summed == CHECKSUM_HW &&
+		    skb->nh.iph->protocol == IPPROTO_UDP)
+			if (unlikely(skb_checksum_help(skb, 0))) {
+				dev_kfree_skb_any(skb);
+				return -ENOMEM;
+			}
+
+		/* Hmmm, assuming to catch the gratious arp... and we'll use
+		 * it to flush out stuck espi packets...
+		  */
+		if (unlikely(!adapter->sge->espibug_skb)) {
+			if (skb->protocol == htons(ETH_P_ARP) &&
+			    skb->nh.arph->ar_op == htons(ARPOP_REQUEST)) {
+				adapter->sge->espibug_skb = skb;
+				/* We want to re-use this skb later. We
+				 * simply bump the reference count and it
+				 * will not be freed...
+				 */
+				skb = skb_get(skb);
+			}
+		}
+
+		cpl = (struct cpl_tx_pkt *)__skb_push(skb, sizeof(*cpl));
+		cpl->opcode = CPL_TX_PKT;
+		cpl->ip_csum_dis = 1;    /* SW calculates IP csum */
+		cpl->l4_csum_dis = skb->ip_summed == CHECKSUM_HW ? 0 : 1;
+		/* the length field isn't used so don't bother setting it */
+
+		st->tx_cso += (skb->ip_summed == CHECKSUM_HW);
+		sge->stats.tx_do_cksum += (skb->ip_summed == CHECKSUM_HW);
+		sge->stats.tx_reg_pkts++;
+	}
+	cpl->iff = dev->if_port;
+
+#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+	if (adapter->vlan_grp && vlan_tx_tag_present(skb)) {
+		cpl->vlan_valid = 1;
+		cpl->vlan = htons(vlan_tx_tag_get(skb));
+		st->vlan_insert++;
+	} else
+#endif
+		cpl->vlan_valid = 0;
+
+	dev->trans_start = jiffies;
+	return t1_sge_tx(skb, adapter, 0, dev);
+}
+
+/*
+ * Callback for the Tx buffer reclaim timer.  Runs with softirqs disabled.
+ */
+static void sge_tx_reclaim_cb(unsigned long data)
+{
+	int i;
+	struct sge *sge = (struct sge *)data;
+
+	for (i = 0; i < SGE_CMDQ_N; ++i) {
+		struct cmdQ *q = &sge->cmdQ[i];
+
+		if (!spin_trylock(&q->lock))
+			continue;
+
+		reclaim_completed_tx(sge, q);
+		if (i == 0 && q->in_use)   /* flush pending credits */
+			writel(F_CMDQ0_ENABLE,
+				sge->adapter->regs + A_SG_DOORBELL);
+
+		spin_unlock(&q->lock);
+	}
+	mod_timer(&sge->tx_reclaim_timer, jiffies + TX_RECLAIM_PERIOD);
+}
+
+/*
+ * Propagate changes of the SGE coalescing parameters to the HW.
+ */
+int t1_sge_set_coalesce_params(struct sge *sge, struct sge_params *p)
+{
+	sge->netdev->poll = t1_poll;
+	sge->fixed_intrtimer = p->rx_coalesce_usecs *
+		core_ticks_per_usec(sge->adapter);
+	writel(sge->fixed_intrtimer, sge->adapter->regs + A_SG_INTRTIMER);
+	return 0;
+}
+
+/*
+ * Allocates both RX and TX resources and configures the SGE. However,
+ * the hardware is not enabled yet.
+ */
+int t1_sge_configure(struct sge *sge, struct sge_params *p)
+{
+	if (alloc_rx_resources(sge, p))
+		return -ENOMEM;
+	if (alloc_tx_resources(sge, p)) {
+		free_rx_resources(sge);
+		return -ENOMEM;
+	}
+	configure_sge(sge, p);
+
+	/*
+	 * Now that we have sized the free lists calculate the payload
+	 * capacity of the large buffers.  Other parts of the driver use
+	 * this to set the max offload coalescing size so that RX packets
+	 * do not overflow our large buffers.
+	 */
+	p->large_buf_capacity = jumbo_payload_capacity(sge);
+	return 0;
+}
+
+/*
+ * Disables the DMA engine.
+ */
+void t1_sge_stop(struct sge *sge)
+{
+	writel(0, sge->adapter->regs + A_SG_CONTROL);
+	(void) readl(sge->adapter->regs + A_SG_CONTROL); /* flush */
+	if (is_T2(sge->adapter))
+		del_timer_sync(&sge->espibug_timer);
+	del_timer_sync(&sge->tx_reclaim_timer);
+}
+
+/*
+ * Enables the DMA engine.
+ */
+void t1_sge_start(struct sge *sge)
+{
+	refill_free_list(sge, &sge->freelQ[0]);
+	refill_free_list(sge, &sge->freelQ[1]);
+
+	writel(sge->sge_control, sge->adapter->regs + A_SG_CONTROL);
+	doorbell_pio(sge->adapter, F_FL0_ENABLE | F_FL1_ENABLE);
+	(void) readl(sge->adapter->regs + A_SG_CONTROL); /* flush */
+
+	mod_timer(&sge->tx_reclaim_timer, jiffies + TX_RECLAIM_PERIOD);
+
+	if (is_T2(sge->adapter)) 
+		mod_timer(&sge->espibug_timer, jiffies + sge->espibug_timeout);
+}
+
+/*
+ * Callback for the T2 ESPI 'stuck packet feature' workaorund
+ */
+static void espibug_workaround(void *data)
+{
+	struct adapter *adapter = (struct adapter *)data;
+	struct sge *sge = adapter->sge;
+
+	if (netif_running(adapter->port[0].dev)) {
+		struct sk_buff *skb = sge->espibug_skb;
+
+		u32 seop = t1_espi_get_mon(adapter, 0x930, 0);
+
+		if ((seop & 0xfff0fff) == 0xfff && skb) {
+			if (!skb->cb[0]) {
+				u8 ch_mac_addr[ETH_ALEN] =
+				    {0x0, 0x7, 0x43, 0x0, 0x0, 0x0};
+				memcpy(skb->data + sizeof(struct cpl_tx_pkt),
+				    ch_mac_addr, ETH_ALEN);
+				memcpy(skb->data + skb->len - 10, ch_mac_addr,
+				    ETH_ALEN);
+				skb->cb[0] = 0xff;
+			}
+
+			/* bump the reference count to avoid freeing of the
+			 * skb once the DMA has completed.
+			 */
+			skb = skb_get(skb);
+			t1_sge_tx(skb, adapter, 0, adapter->port[0].dev);
+		}
+	}
+	mod_timer(&sge->espibug_timer, jiffies + sge->espibug_timeout);
+}
+
+/*
+ * Creates a t1_sge structure and returns suggested resource parameters.
+ */
+struct sge * __devinit t1_sge_create(struct adapter *adapter,
+				     struct sge_params *p)
+{
+	struct sge *sge = kmalloc(sizeof(*sge), GFP_KERNEL);
+
+	if (!sge)
+		return NULL;
+	memset(sge, 0, sizeof(*sge));
+
+	sge->adapter = adapter;
+	sge->netdev = adapter->port[0].dev;
+	sge->rx_pkt_pad = t1_is_T1B(adapter) ? 0 : 2;
+	sge->jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
+
+	init_timer(&sge->tx_reclaim_timer);
+	sge->tx_reclaim_timer.data = (unsigned long)sge;
+	sge->tx_reclaim_timer.function = sge_tx_reclaim_cb;
+
+	if (is_T2(sge->adapter)) {
+		init_timer(&sge->espibug_timer);
+		sge->espibug_timer.function = (void *)&espibug_workaround;
+		sge->espibug_timer.data = (unsigned long)sge->adapter;
+		sge->espibug_timeout = 1;
+	}
+	 
+
+	p->cmdQ_size[0] = SGE_CMDQ0_E_N;
+	p->cmdQ_size[1] = SGE_CMDQ1_E_N;
+	p->freelQ_size[!sge->jumbo_fl] = SGE_FREEL_SIZE;
+	p->freelQ_size[sge->jumbo_fl] = SGE_JUMBO_FREEL_SIZE;
+	p->rx_coalesce_usecs =  50;
+	p->coalesce_enable = 0;
+	p->sample_interval_usecs = 0;
+	p->polling = 0;
+
+	return sge;
+}
diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h
new file mode 100644
index 000000000000..434b25586851
--- /dev/null
+++ b/drivers/net/chelsio/sge.h
@@ -0,0 +1,105 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: sge.h                                                               *
+ * $Revision: 1.11 $                                                          *
+ * $Date: 2005/06/21 22:10:55 $                                              *
+ * Description:                                                              *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_SGE_H_
+#define _CXGB_SGE_H_
+
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <asm/byteorder.h>
+
+#ifndef IRQ_RETVAL
+#define IRQ_RETVAL(x)
+typedef void irqreturn_t;
+#endif
+
+typedef irqreturn_t (*intr_handler_t)(int, void *, struct pt_regs *);
+
+struct sge_intr_counts {
+	unsigned int respQ_empty;      /* # times respQ empty */
+	unsigned int respQ_overflow;   /* # respQ overflow (fatal) */
+	unsigned int freelistQ_empty;  /* # times freelist empty */
+	unsigned int pkt_too_big;      /* packet too large (fatal) */
+	unsigned int pkt_mismatch;
+	unsigned int cmdQ_full[3];     /* not HW IRQ, host cmdQ[] full */
+	unsigned int cmdQ_restarted[3];/* # of times cmdQ X was restarted */
+	unsigned int ethernet_pkts;    /* # of Ethernet packets received */
+	unsigned int offload_pkts;     /* # of offload packets received */
+	unsigned int offload_bundles;  /* # of offload pkt bundles delivered */
+	unsigned int pure_rsps;        /* # of non-payload responses */
+	unsigned int unhandled_irqs;   /* # of unhandled interrupts */
+	unsigned int tx_ipfrags;
+	unsigned int tx_reg_pkts;
+	unsigned int tx_lso_pkts;
+	unsigned int tx_do_cksum;
+};
+
+struct sge_port_stats {
+	unsigned long rx_cso_good;     /* # of successful RX csum offloads */
+	unsigned long tx_cso;          /* # of TX checksum offloads */
+	unsigned long vlan_xtract;     /* # of VLAN tag extractions */
+	unsigned long vlan_insert;     /* # of VLAN tag extractions */
+	unsigned long tso;             /* # of TSO requests */
+	unsigned long rx_drops;        /* # of packets dropped due to no mem */
+};
+
+struct sk_buff;
+struct net_device;
+struct adapter;
+struct sge_params;
+struct sge;
+
+struct sge *t1_sge_create(struct adapter *, struct sge_params *);
+int t1_sge_configure(struct sge *, struct sge_params *);
+int t1_sge_set_coalesce_params(struct sge *, struct sge_params *);
+void t1_sge_destroy(struct sge *);
+intr_handler_t t1_select_intr_handler(adapter_t *adapter);
+unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter,
+		       unsigned int qid, struct net_device *netdev);
+int t1_start_xmit(struct sk_buff *skb, struct net_device *dev);
+void t1_set_vlan_accel(struct adapter *adapter, int on_off);
+void t1_sge_start(struct sge *);
+void t1_sge_stop(struct sge *);
+int t1_sge_intr_error_handler(struct sge *);
+void t1_sge_intr_enable(struct sge *);
+void t1_sge_intr_disable(struct sge *);
+void t1_sge_intr_clear(struct sge *);
+const struct sge_intr_counts *t1_sge_get_intr_counts(struct sge *sge);
+const struct sge_port_stats *t1_sge_get_port_stats(struct sge *sge, int port);
+
+#endif /* _CXGB_SGE_H_ */
diff --git a/drivers/net/chelsio/subr.c b/drivers/net/chelsio/subr.c
new file mode 100644
index 000000000000..1ebb5d149aef
--- /dev/null
+++ b/drivers/net/chelsio/subr.c
@@ -0,0 +1,812 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: subr.c                                                              *
+ * $Revision: 1.27 $                                                         *
+ * $Date: 2005/06/22 01:08:36 $                                              *
+ * Description:                                                              *
+ *  Various subroutines (intr,pio,etc.) used by Chelsio 10G Ethernet driver. *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
+ *          Tina Yang               <tainay@chelsio.com>                     *
+ *          Felix Marti             <felix@chelsio.com>                      *
+ *          Scott Bardone           <sbardone@chelsio.com>                   *
+ *          Kurt Ottaway            <kottaway@chelsio.com>                   *
+ *          Frank DiMambro          <frank@chelsio.com>                      *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#include "common.h"
+#include "elmer0.h"
+#include "regs.h"
+#include "gmac.h"
+#include "cphy.h"
+#include "sge.h"
+#include "espi.h"
+
+/**
+ *	t1_wait_op_done - wait until an operation is completed
+ *	@adapter: the adapter performing the operation
+ *	@reg: the register to check for completion
+ *	@mask: a single-bit field within @reg that indicates completion
+ *	@polarity: the value of the field when the operation is completed
+ *	@attempts: number of check iterations
+ *      @delay: delay in usecs between iterations
+ *
+ *	Wait until an operation is completed by checking a bit in a register
+ *	up to @attempts times.  Returns %0 if the operation completes and %1
+ *	otherwise.
+ */
+static int t1_wait_op_done(adapter_t *adapter, int reg, u32 mask, int polarity,
+		    int attempts, int delay)
+{
+	while (1) {
+		u32 val = readl(adapter->regs + reg) & mask;
+
+		if (!!val == polarity)
+			return 0;
+		if (--attempts == 0)
+			return 1;
+		if (delay)
+			udelay(delay);
+	}
+}
+
+#define TPI_ATTEMPTS 50
+
+/*
+ * Write a register over the TPI interface (unlocked and locked versions).
+ */
+static int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value)
+{
+	int tpi_busy;
+
+	writel(addr, adapter->regs + A_TPI_ADDR);
+	writel(value, adapter->regs + A_TPI_WR_DATA);
+	writel(F_TPIWR, adapter->regs + A_TPI_CSR);
+
+	tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1,
+				   TPI_ATTEMPTS, 3);
+	if (tpi_busy)
+		CH_ALERT("%s: TPI write to 0x%x failed\n",
+			 adapter->name, addr);
+	return tpi_busy;
+}
+
+int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value)
+{
+	int ret;
+
+	spin_lock(&(adapter)->tpi_lock);
+	ret = __t1_tpi_write(adapter, addr, value);
+	spin_unlock(&(adapter)->tpi_lock);
+	return ret;
+}
+
+/*
+ * Read a register over the TPI interface (unlocked and locked versions).
+ */
+static int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp)
+{
+	int tpi_busy;
+
+	writel(addr, adapter->regs + A_TPI_ADDR);
+	writel(0, adapter->regs + A_TPI_CSR);
+
+	tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1,
+				   TPI_ATTEMPTS, 3);
+	if (tpi_busy)
+		CH_ALERT("%s: TPI read from 0x%x failed\n",
+			 adapter->name, addr);
+	else
+		*valp = readl(adapter->regs + A_TPI_RD_DATA);
+	return tpi_busy;
+}
+
+int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp)
+{
+	int ret;
+
+	spin_lock(&(adapter)->tpi_lock);
+	ret = __t1_tpi_read(adapter, addr, valp);
+	spin_unlock(&(adapter)->tpi_lock);
+	return ret;
+}
+
+/*
+ * Called when a port's link settings change to propagate the new values to the
+ * associated PHY and MAC.  After performing the common tasks it invokes an
+ * OS-specific handler.
+ */
+/* static */ void link_changed(adapter_t *adapter, int port_id)
+{
+	int link_ok, speed, duplex, fc;
+	struct cphy *phy = adapter->port[port_id].phy;
+	struct link_config *lc = &adapter->port[port_id].link_config;
+
+	phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc);
+
+	lc->speed = speed < 0 ? SPEED_INVALID : speed;
+	lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
+	if (!(lc->requested_fc & PAUSE_AUTONEG))
+		fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
+
+	if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE) {
+		/* Set MAC speed, duplex, and flow control to match PHY. */
+		struct cmac *mac = adapter->port[port_id].mac;
+
+		mac->ops->set_speed_duplex_fc(mac, speed, duplex, fc);
+		lc->fc = (unsigned char)fc;
+	}
+	t1_link_changed(adapter, port_id, link_ok, speed, duplex, fc);
+}
+
+static int t1_pci_intr_handler(adapter_t *adapter)
+{
+	u32 pcix_cause;
+
+    	pci_read_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, &pcix_cause);
+
+	if (pcix_cause) {
+		pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE,
+					 pcix_cause);
+		t1_fatal_err(adapter);    /* PCI errors are fatal */
+	}
+	return 0;
+}
+
+
+/*
+ * Wait until Elmer's MI1 interface is ready for new operations.
+ */
+static int mi1_wait_until_ready(adapter_t *adapter, int mi1_reg)
+{
+	int attempts = 100, busy;
+
+	do {
+		u32 val;
+
+		__t1_tpi_read(adapter, mi1_reg, &val);
+		busy = val & F_MI1_OP_BUSY;
+		if (busy)
+			udelay(10);
+	} while (busy && --attempts);
+	if (busy)
+		CH_ALERT("%s: MDIO operation timed out\n",
+			 adapter->name);
+	return busy;
+}
+
+/*
+ * MI1 MDIO initialization.
+ */
+static void mi1_mdio_init(adapter_t *adapter, const struct board_info *bi)
+{
+	u32 clkdiv = bi->clock_elmer0 / (2 * bi->mdio_mdc) - 1;
+	u32 val = F_MI1_PREAMBLE_ENABLE | V_MI1_MDI_INVERT(bi->mdio_mdiinv) |
+		V_MI1_MDI_ENABLE(bi->mdio_mdien) | V_MI1_CLK_DIV(clkdiv);
+
+	if (!(bi->caps & SUPPORTED_10000baseT_Full))
+		val |= V_MI1_SOF(1);
+	t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_CFG, val);
+}
+
+static int mi1_mdio_ext_read(adapter_t *adapter, int phy_addr, int mmd_addr,
+			     int reg_addr, unsigned int *valp)
+{
+	u32 addr = V_MI1_REG_ADDR(mmd_addr) | V_MI1_PHY_ADDR(phy_addr);
+
+	spin_lock(&(adapter)->tpi_lock);
+
+	/* Write the address we want. */
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_ADDR, addr);
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, reg_addr);
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP,
+		       MI1_OP_INDIRECT_ADDRESS);
+	mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP);
+
+	/* Write the operation we want. */
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, MI1_OP_INDIRECT_READ);
+	mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP);
+
+	/* Read the data. */
+	__t1_tpi_read(adapter, A_ELMER0_PORT0_MI1_DATA, valp);
+	spin_unlock(&(adapter)->tpi_lock);
+	return 0;
+}
+
+static int mi1_mdio_ext_write(adapter_t *adapter, int phy_addr, int mmd_addr,
+			      int reg_addr, unsigned int val)
+{
+	u32 addr = V_MI1_REG_ADDR(mmd_addr) | V_MI1_PHY_ADDR(phy_addr);
+
+	spin_lock(&(adapter)->tpi_lock);
+
+	/* Write the address we want. */
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_ADDR, addr);
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, reg_addr);
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP,
+		       MI1_OP_INDIRECT_ADDRESS);
+	mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP);
+
+	/* Write the data. */
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, val);
+	__t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, MI1_OP_INDIRECT_WRITE);
+	mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP);
+	spin_unlock(&(adapter)->tpi_lock);
+	return 0;
+}
+
+static struct mdio_ops mi1_mdio_ext_ops = {
+	mi1_mdio_init,
+	mi1_mdio_ext_read,
+	mi1_mdio_ext_write
+};
+
+enum {
+	CH_BRD_N110_1F,
+	CH_BRD_N210_1F,
+};
+
+static struct board_info t1_board[] = {
+
+{ CHBT_BOARD_N110, 1/*ports#*/,
+  SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE /*caps*/, CHBT_TERM_T1,
+  CHBT_MAC_PM3393, CHBT_PHY_88X2010,
+  125000000/*clk-core*/, 0/*clk-mc3*/, 0/*clk-mc4*/,
+  1/*espi-ports*/, 0/*clk-cspi*/, 44/*clk-elmer0*/, 0/*mdien*/,
+  0/*mdiinv*/, 1/*mdc*/, 0/*phybaseaddr*/, &t1_pm3393_ops,
+  &t1_mv88x201x_ops, &mi1_mdio_ext_ops,
+  "Chelsio N110 1x10GBaseX NIC" },
+
+{ CHBT_BOARD_N210, 1/*ports#*/,
+  SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE /*caps*/, CHBT_TERM_T2,
+  CHBT_MAC_PM3393, CHBT_PHY_88X2010,
+  125000000/*clk-core*/, 0/*clk-mc3*/, 0/*clk-mc4*/,
+  1/*espi-ports*/, 0/*clk-cspi*/, 44/*clk-elmer0*/, 0/*mdien*/,
+  0/*mdiinv*/, 1/*mdc*/, 0/*phybaseaddr*/, &t1_pm3393_ops,
+  &t1_mv88x201x_ops, &mi1_mdio_ext_ops,
+  "Chelsio N210 1x10GBaseX NIC" },
+
+};
+
+struct pci_device_id t1_pci_tbl[] = {
+	CH_DEVICE(7, 0, CH_BRD_N110_1F),
+	CH_DEVICE(10, 1, CH_BRD_N210_1F),
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, t1_pci_tbl);
+
+/*
+ * Return the board_info structure with a given index.  Out-of-range indices
+ * return NULL.
+ */
+const struct board_info *t1_get_board_info(unsigned int board_id)
+{
+	return board_id < ARRAY_SIZE(t1_board) ? &t1_board[board_id] : NULL;
+}
+
+struct chelsio_vpd_t {
+	u32 format_version;
+	u8 serial_number[16];
+	u8 mac_base_address[6];
+	u8 pad[2];           /* make multiple-of-4 size requirement explicit */
+};
+
+#define EEPROMSIZE        (8 * 1024)
+#define EEPROM_MAX_POLL   4
+
+/*
+ * Read SEEPROM. A zero is written to the flag register when the addres is
+ * written to the Control register. The hardware device will set the flag to a
+ * one when 4B have been transferred to the Data register.
+ */
+int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data)
+{
+	int i = EEPROM_MAX_POLL;
+	u16 val;
+
+	if (addr >= EEPROMSIZE || (addr & 3))
+		return -EINVAL;
+
+	pci_write_config_word(adapter->pdev, A_PCICFG_VPD_ADDR, (u16)addr);
+	do {
+		udelay(50);
+		pci_read_config_word(adapter->pdev, A_PCICFG_VPD_ADDR, &val);
+	} while (!(val & F_VPD_OP_FLAG) && --i);
+
+	if (!(val & F_VPD_OP_FLAG)) {
+		CH_ERR("%s: reading EEPROM address 0x%x failed\n",
+		       adapter->name, addr);
+		return -EIO;
+	}
+	pci_read_config_dword(adapter->pdev, A_PCICFG_VPD_DATA, data);
+	*data = le32_to_cpu(*data);
+	return 0;
+}
+
+static int t1_eeprom_vpd_get(adapter_t *adapter, struct chelsio_vpd_t *vpd)
+{
+	int addr, ret = 0;
+
+	for (addr = 0; !ret && addr < sizeof(*vpd); addr += sizeof(u32))
+		ret = t1_seeprom_read(adapter, addr,
+				      (u32 *)((u8 *)vpd + addr));
+
+	return ret;
+}
+
+/*
+ * Read a port's MAC address from the VPD ROM.
+ */
+static int vpd_macaddress_get(adapter_t *adapter, int index, u8 mac_addr[])
+{
+	struct chelsio_vpd_t vpd;
+
+	if (t1_eeprom_vpd_get(adapter, &vpd))
+		return 1;
+	memcpy(mac_addr, vpd.mac_base_address, 5);
+	mac_addr[5] = vpd.mac_base_address[5] + index;
+	return 0;
+}
+
+/*
+ * Set up the MAC/PHY according to the requested link settings.
+ *
+ * If the PHY can auto-negotiate first decide what to advertise, then
+ * enable/disable auto-negotiation as desired and reset.
+ *
+ * If the PHY does not auto-negotiate we just reset it.
+ *
+ * If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
+ * otherwise do it later based on the outcome of auto-negotiation.
+ */
+int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc)
+{
+	unsigned int fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
+
+	if (lc->supported & SUPPORTED_Autoneg) {
+		lc->advertising &= ~(ADVERTISED_ASYM_PAUSE | ADVERTISED_PAUSE);
+		if (fc) {
+			lc->advertising |= ADVERTISED_ASYM_PAUSE;
+			if (fc == (PAUSE_RX | PAUSE_TX))
+				lc->advertising |= ADVERTISED_PAUSE;
+		}
+		phy->ops->advertise(phy, lc->advertising);
+
+		if (lc->autoneg == AUTONEG_DISABLE) {
+			lc->speed = lc->requested_speed;
+			lc->duplex = lc->requested_duplex;
+			lc->fc = (unsigned char)fc;
+			mac->ops->set_speed_duplex_fc(mac, lc->speed,
+						      lc->duplex, fc);
+			/* Also disables autoneg */
+			phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex);
+			phy->ops->reset(phy, 0);
+		} else
+			phy->ops->autoneg_enable(phy); /* also resets PHY */
+	} else {
+		mac->ops->set_speed_duplex_fc(mac, -1, -1, fc);
+		lc->fc = (unsigned char)fc;
+		phy->ops->reset(phy, 0);
+	}
+	return 0;
+}
+
+/*
+ * External interrupt handler for boards using elmer0.
+ */
+int elmer0_ext_intr_handler(adapter_t *adapter)
+{
+    	struct cphy *phy;
+	int phy_cause;
+    	u32 cause;
+
+	t1_tpi_read(adapter, A_ELMER0_INT_CAUSE, &cause);
+
+	switch (board_info(adapter)->board) {
+	case CHBT_BOARD_N210:
+	case CHBT_BOARD_N110:
+		if (cause & ELMER0_GP_BIT6) { /* Marvell 88x2010 interrupt */
+			phy = adapter->port[0].phy;
+			phy_cause = phy->ops->interrupt_handler(phy);
+			if (phy_cause & cphy_cause_link_change)
+				link_changed(adapter, 0);
+		}
+		break;
+	}
+	t1_tpi_write(adapter, A_ELMER0_INT_CAUSE, cause);
+	return 0;
+}
+
+/* Enables all interrupts. */
+void t1_interrupts_enable(adapter_t *adapter)
+{
+	unsigned int i;
+	u32 pl_intr;
+
+	adapter->slow_intr_mask = F_PL_INTR_SGE_ERR;
+
+	t1_sge_intr_enable(adapter->sge);
+	if (adapter->espi) {
+		adapter->slow_intr_mask |= F_PL_INTR_ESPI;
+		t1_espi_intr_enable(adapter->espi);
+	}
+
+	/* Enable MAC/PHY interrupts for each port. */
+	for_each_port(adapter, i) {
+		adapter->port[i].mac->ops->interrupt_enable(adapter->port[i].mac);
+		adapter->port[i].phy->ops->interrupt_enable(adapter->port[i].phy);
+	}
+
+	/* Enable PCIX & external chip interrupts on ASIC boards. */
+	pl_intr = readl(adapter->regs + A_PL_ENABLE);
+
+	/* PCI-X interrupts */
+	pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_ENABLE,
+			       0xffffffff);
+
+	adapter->slow_intr_mask |= F_PL_INTR_EXT | F_PL_INTR_PCIX;
+	pl_intr |= F_PL_INTR_EXT | F_PL_INTR_PCIX;
+	writel(pl_intr, adapter->regs + A_PL_ENABLE);
+}
+
+/* Disables all interrupts. */
+void t1_interrupts_disable(adapter_t* adapter)
+{
+	unsigned int i;
+
+	t1_sge_intr_disable(adapter->sge);
+	if (adapter->espi)
+		t1_espi_intr_disable(adapter->espi);
+
+	/* Disable MAC/PHY interrupts for each port. */
+	for_each_port(adapter, i) {
+		adapter->port[i].mac->ops->interrupt_disable(adapter->port[i].mac);
+		adapter->port[i].phy->ops->interrupt_disable(adapter->port[i].phy);
+	}
+
+	/* Disable PCIX & external chip interrupts. */
+	writel(0, adapter->regs + A_PL_ENABLE);
+
+	/* PCI-X interrupts */
+	pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_ENABLE, 0);
+
+	adapter->slow_intr_mask = 0;
+}
+
+/* Clears all interrupts */
+void t1_interrupts_clear(adapter_t* adapter)
+{
+	unsigned int i;
+	u32 pl_intr;
+
+
+	t1_sge_intr_clear(adapter->sge);
+	if (adapter->espi)
+		t1_espi_intr_clear(adapter->espi);
+
+	/* Clear MAC/PHY interrupts for each port. */
+	for_each_port(adapter, i) {
+		adapter->port[i].mac->ops->interrupt_clear(adapter->port[i].mac);
+		adapter->port[i].phy->ops->interrupt_clear(adapter->port[i].phy);
+	}
+
+	/* Enable interrupts for external devices. */
+    	pl_intr = readl(adapter->regs + A_PL_CAUSE);
+
+	writel(pl_intr | F_PL_INTR_EXT | F_PL_INTR_PCIX,
+	       adapter->regs + A_PL_CAUSE);
+
+	/* PCI-X interrupts */
+	pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, 0xffffffff);
+}
+
+/*
+ * Slow path interrupt handler for ASICs.
+ */
+int t1_slow_intr_handler(adapter_t *adapter)
+{
+	u32 cause = readl(adapter->regs + A_PL_CAUSE);
+
+	cause &= adapter->slow_intr_mask;
+	if (!cause)
+		return 0;
+	if (cause & F_PL_INTR_SGE_ERR)
+		t1_sge_intr_error_handler(adapter->sge);
+	if (cause & F_PL_INTR_ESPI)
+		t1_espi_intr_handler(adapter->espi);
+	if (cause & F_PL_INTR_PCIX)
+		t1_pci_intr_handler(adapter);
+	if (cause & F_PL_INTR_EXT)
+		t1_elmer0_ext_intr(adapter);
+
+	/* Clear the interrupts just processed. */
+	writel(cause, adapter->regs + A_PL_CAUSE);
+	(void)readl(adapter->regs + A_PL_CAUSE); /* flush writes */
+	return 1;
+}
+
+/* Pause deadlock avoidance parameters */
+#define DROP_MSEC 16
+#define DROP_PKTS_CNT  1
+
+static void set_csum_offload(adapter_t *adapter, u32 csum_bit, int enable)
+{
+	u32 val = readl(adapter->regs + A_TP_GLOBAL_CONFIG);
+
+	if (enable)
+		val |= csum_bit;
+	else
+		val &= ~csum_bit;
+	writel(val, adapter->regs + A_TP_GLOBAL_CONFIG);
+}
+
+void t1_tp_set_ip_checksum_offload(adapter_t *adapter, int enable)
+{
+	set_csum_offload(adapter, F_IP_CSUM, enable);
+}
+
+void t1_tp_set_udp_checksum_offload(adapter_t *adapter, int enable)
+{
+	set_csum_offload(adapter, F_UDP_CSUM, enable);
+}
+
+void t1_tp_set_tcp_checksum_offload(adapter_t *adapter, int enable)
+{
+	set_csum_offload(adapter, F_TCP_CSUM, enable);
+}
+
+static void t1_tp_reset(adapter_t *adapter, unsigned int tp_clk)
+{
+	u32 val;
+
+	val = F_TP_IN_CSPI_CPL | F_TP_IN_CSPI_CHECK_IP_CSUM |
+	      F_TP_IN_CSPI_CHECK_TCP_CSUM | F_TP_IN_ESPI_ETHERNET;
+	val |= F_TP_IN_ESPI_CHECK_IP_CSUM |
+	       F_TP_IN_ESPI_CHECK_TCP_CSUM;
+	writel(val, adapter->regs + A_TP_IN_CONFIG);
+	writel(F_TP_OUT_CSPI_CPL |
+	       F_TP_OUT_ESPI_ETHERNET |
+	       F_TP_OUT_ESPI_GENERATE_IP_CSUM |
+	       F_TP_OUT_ESPI_GENERATE_TCP_CSUM,
+	       adapter->regs + A_TP_OUT_CONFIG);
+
+	val = readl(adapter->regs + A_TP_GLOBAL_CONFIG);
+	val &= ~(F_IP_CSUM | F_UDP_CSUM | F_TCP_CSUM);
+	writel(val, adapter->regs + A_TP_GLOBAL_CONFIG);
+
+	/*
+	 * Enable pause frame deadlock prevention.
+	 */
+	if (is_T2(adapter)) {
+		u32 drop_ticks = DROP_MSEC * (tp_clk / 1000);
+
+		writel(F_ENABLE_TX_DROP | F_ENABLE_TX_ERROR |
+		       V_DROP_TICKS_CNT(drop_ticks) |
+		       V_NUM_PKTS_DROPPED(DROP_PKTS_CNT),
+		       adapter->regs + A_TP_TX_DROP_CONFIG);
+	}
+
+	writel(F_TP_RESET, adapter->regs + A_TP_RESET);
+}
+
+int __devinit t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
+			       struct adapter_params *p)
+{
+	p->chip_version = bi->chip_term;
+	if (p->chip_version == CHBT_TERM_T1 ||
+	    p->chip_version == CHBT_TERM_T2) {
+		u32 val = readl(adapter->regs + A_TP_PC_CONFIG);
+
+		val = G_TP_PC_REV(val);
+		if (val == 2)
+			p->chip_revision = TERM_T1B;
+		else if (val == 3)
+			p->chip_revision = TERM_T2;
+		else
+			return -1;
+	} else
+		return -1;
+	return 0;
+}
+
+/*
+ * Enable board components other than the Chelsio chip, such as external MAC
+ * and PHY.
+ */
+static int board_init(adapter_t *adapter, const struct board_info *bi)
+{
+	switch (bi->board) {
+	case CHBT_BOARD_N110:
+	case CHBT_BOARD_N210:
+		writel(V_TPIPAR(0xf), adapter->regs + A_TPI_PAR);
+    		t1_tpi_write(adapter, A_ELMER0_GPO, 0x800);
+		break;
+	}
+	return 0;
+}
+
+/*
+ * Initialize and configure the Terminator HW modules.  Note that external
+ * MAC and PHYs are initialized separately.
+ */
+int t1_init_hw_modules(adapter_t *adapter)
+{
+	int err = -EIO;
+	const struct board_info *bi = board_info(adapter);
+
+	if (!bi->clock_mc4) {
+		u32 val = readl(adapter->regs + A_MC4_CFG);
+
+		writel(val | F_READY | F_MC4_SLOW, adapter->regs + A_MC4_CFG);
+		writel(F_M_BUS_ENABLE | F_TCAM_RESET,
+		       adapter->regs + A_MC5_CONFIG);
+	}
+
+	if (adapter->espi && t1_espi_init(adapter->espi, bi->chip_mac,
+					  bi->espi_nports))
+		goto out_err;
+
+	t1_tp_reset(adapter, bi->clock_core);
+
+	err = t1_sge_configure(adapter->sge, &adapter->params.sge);
+	if (err)
+		goto out_err;
+
+	err = 0;
+ out_err:
+	return err;
+}
+
+/*
+ * Determine a card's PCI mode.
+ */
+static void __devinit get_pci_mode(adapter_t *adapter, struct chelsio_pci_params *p)
+{
+	static unsigned short speed_map[] = { 33, 66, 100, 133 };
+	u32 pci_mode;
+
+	pci_read_config_dword(adapter->pdev, A_PCICFG_MODE, &pci_mode);
+	p->speed = speed_map[G_PCI_MODE_CLK(pci_mode)];
+	p->width = (pci_mode & F_PCI_MODE_64BIT) ? 64 : 32;
+	p->is_pcix = (pci_mode & F_PCI_MODE_PCIX) != 0;
+}
+
+/*
+ * Release the structures holding the SW per-Terminator-HW-module state.
+ */
+void t1_free_sw_modules(adapter_t *adapter)
+{
+	unsigned int i;
+
+	for_each_port(adapter, i) {
+		struct cmac *mac = adapter->port[i].mac;
+		struct cphy *phy = adapter->port[i].phy;
+
+		if (mac)
+			mac->ops->destroy(mac);
+		if (phy)
+			phy->ops->destroy(phy);
+	}
+
+	if (adapter->sge)
+		t1_sge_destroy(adapter->sge);
+	if (adapter->espi)
+		t1_espi_destroy(adapter->espi);
+}
+
+static void __devinit init_link_config(struct link_config *lc,
+				       const struct board_info *bi)
+{
+	lc->supported = bi->caps;
+	lc->requested_speed = lc->speed = SPEED_INVALID;
+	lc->requested_duplex = lc->duplex = DUPLEX_INVALID;
+	lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
+	if (lc->supported & SUPPORTED_Autoneg) {
+		lc->advertising = lc->supported;
+		lc->autoneg = AUTONEG_ENABLE;
+		lc->requested_fc |= PAUSE_AUTONEG;
+	} else {
+		lc->advertising = 0;
+		lc->autoneg = AUTONEG_DISABLE;
+	}
+}
+
+
+/*
+ * Allocate and initialize the data structures that hold the SW state of
+ * the Terminator HW modules.
+ */
+int __devinit t1_init_sw_modules(adapter_t *adapter,
+				 const struct board_info *bi)
+{
+	unsigned int i;
+
+	adapter->params.brd_info = bi;
+	adapter->params.nports = bi->port_number;
+	adapter->params.stats_update_period = bi->gmac->stats_update_period;
+
+	adapter->sge = t1_sge_create(adapter, &adapter->params.sge);
+	if (!adapter->sge) {
+		CH_ERR("%s: SGE initialization failed\n",
+		       adapter->name);
+		goto error;
+	}
+
+	if (bi->espi_nports && !(adapter->espi = t1_espi_create(adapter))) {
+		CH_ERR("%s: ESPI initialization failed\n",
+		       adapter->name);
+		goto error;
+	}
+
+	board_init(adapter, bi);
+	bi->mdio_ops->init(adapter, bi);
+	if (bi->gphy->reset)
+		bi->gphy->reset(adapter);
+	if (bi->gmac->reset)
+		bi->gmac->reset(adapter);
+
+	for_each_port(adapter, i) {
+		u8 hw_addr[6];
+		struct cmac *mac;
+		int phy_addr = bi->mdio_phybaseaddr + i;
+
+		adapter->port[i].phy = bi->gphy->create(adapter, phy_addr,
+							bi->mdio_ops);
+		if (!adapter->port[i].phy) {
+			CH_ERR("%s: PHY %d initialization failed\n",
+			       adapter->name, i);
+			goto error;
+		}
+
+		adapter->port[i].mac = mac = bi->gmac->create(adapter, i);
+		if (!mac) {
+			CH_ERR("%s: MAC %d initialization failed\n",
+			       adapter->name, i);
+			goto error;
+		}
+
+		/*
+		 * Get the port's MAC addresses either from the EEPROM if one
+		 * exists or the one hardcoded in the MAC.
+		 */
+		if (vpd_macaddress_get(adapter, i, hw_addr)) {
+			CH_ERR("%s: could not read MAC address from VPD ROM\n",
+			       adapter->port[i].dev->name);
+			goto error;
+		}
+		memcpy(adapter->port[i].dev->dev_addr, hw_addr, ETH_ALEN);
+		init_link_config(&adapter->port[i].link_config, bi);
+	}
+
+	get_pci_mode(adapter, &adapter->params.pci);
+	t1_interrupts_clear(adapter);
+	return 0;
+
+ error:
+	t1_free_sw_modules(adapter);
+	return -1;
+}
diff --git a/drivers/net/chelsio/suni1x10gexp_regs.h b/drivers/net/chelsio/suni1x10gexp_regs.h
new file mode 100644
index 000000000000..81816c2b708a
--- /dev/null
+++ b/drivers/net/chelsio/suni1x10gexp_regs.h
@@ -0,0 +1,213 @@
+/*****************************************************************************
+ *                                                                           *
+ * File: suni1x10gexp_regs.h                                                 *
+ * $Revision: 1.9 $                                                          *
+ * $Date: 2005/06/22 00:17:04 $                                              *
+ * Description:                                                              *
+ *  PMC/SIERRA (pm3393) MAC-PHY functionality.                               *
+ *  part of the Chelsio 10Gb Ethernet Driver.                                *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License, version 2, as       *
+ * published by the Free Software Foundation.                                *
+ *                                                                           *
+ * 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.,   *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
+ *                                                                           *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
+ *                                                                           *
+ * http://www.chelsio.com                                                    *
+ *                                                                           *
+ * Maintainers: maintainers@chelsio.com                                      *
+ *                                                                           *
+ * Authors: PMC/SIERRA                                                       *
+ *                                                                           *
+ * History:                                                                  *
+ *                                                                           *
+ ****************************************************************************/
+
+#ifndef _CXGB_SUNI1x10GEXP_REGS_H_
+#define _CXGB_SUNI1x10GEXP_REGS_H_
+
+/******************************************************************************/
+/** S/UNI-1x10GE-XP REGISTER ADDRESS MAP                                     **/
+/******************************************************************************/
+/* Refer to the Register Bit Masks bellow for the naming of each register and */
+/* to the S/UNI-1x10GE-XP Data Sheet for the signification of each bit        */
+/******************************************************************************/
+
+#define SUNI1x10GEXP_REG_DEVICE_STATUS                                   0x0004
+#define SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS                         0x000D
+#define SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE                         0x000E
+#define SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE                    0x0102
+#define SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_STATUS                    0x0104
+#define SUNI1x10GEXP_REG_RXXG_CONFIG_1                                   0x2040
+#define SUNI1x10GEXP_REG_RXXG_CONFIG_3                                   0x2042
+#define SUNI1x10GEXP_REG_RXXG_INTERRUPT                                  0x2043
+#define SUNI1x10GEXP_REG_RXXG_MAX_FRAME_LENGTH                           0x2045
+#define SUNI1x10GEXP_REG_RXXG_SA_15_0                                    0x2046
+#define SUNI1x10GEXP_REG_RXXG_SA_31_16                                   0x2047
+#define SUNI1x10GEXP_REG_RXXG_SA_47_32                                   0x2048
+#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_LOW                     0x204D
+#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_MID                     0x204E
+#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_HIGH                    0x204F
+#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW                         0x206A
+#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW                      0x206B
+#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH                     0x206C
+#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH                        0x206D
+#define SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0                   0x206E
+#define SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2                   0x2070
+#define SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE                            0x2088
+#define SUNI1x10GEXP_REG_XRF_INTERRUPT_STATUS                            0x2089
+#define SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE                       0x208B
+#define SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_STATUS                       0x208C
+#define SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE                          0x20C7
+#define SUNI1x10GEXP_REG_RXOAM_INTERRUPT_STATUS                          0x20C8
+#define SUNI1x10GEXP_REG_MSTAT_CONTROL                                   0x2100
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_0                        0x2101
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_1                        0x2102
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_2                        0x2103
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_3                        0x2104
+#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0                          0x2105
+#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1                          0x2106
+#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2                          0x2107
+#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3                          0x2108
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW                             0x2110
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW                             0x2114
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_4_LOW                             0x2120
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_5_LOW                             0x2124
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_6_LOW                             0x2128
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_8_LOW                             0x2130
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_10_LOW                            0x2138
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_11_LOW                            0x213C
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_12_LOW                            0x2140
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_13_LOW                            0x2144
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_15_LOW                            0x214C
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_16_LOW                            0x2150
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_17_LOW                            0x2154
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_18_LOW                            0x2158
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW                            0x2194
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_35_LOW                            0x219C
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_36_LOW                            0x21A0
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_38_LOW                            0x21A8
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_40_LOW                            0x21B0
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_42_LOW                            0x21B8
+#define SUNI1x10GEXP_REG_MSTAT_COUNTER_43_LOW                            0x21BC
+#define SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE                       0x2209
+#define SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_INTERRUPT                    0x220A
+#define SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK                           0x2282
+#define SUNI1x10GEXP_REG_PL4ODP_INTERRUPT                                0x2283
+#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_STATUS                        0x2300
+#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_CHANGE                        0x2301
+#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK                          0x2302
+#define SUNI1x10GEXP_REG_TXXG_CONFIG_1                                   0x3040
+#define SUNI1x10GEXP_REG_TXXG_CONFIG_3                                   0x3042
+#define SUNI1x10GEXP_REG_TXXG_INTERRUPT                                  0x3043
+#define SUNI1x10GEXP_REG_TXXG_MAX_FRAME_SIZE                             0x3045
+#define SUNI1x10GEXP_REG_TXXG_SA_15_0                                    0x3047
+#define SUNI1x10GEXP_REG_TXXG_SA_31_16                                   0x3048
+#define SUNI1x10GEXP_REG_TXXG_SA_47_32                                   0x3049
+#define SUNI1x10GEXP_REG_XTEF_INTERRUPT_STATUS                           0x3084
+#define SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE                           0x3085
+#define SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE                          0x30C6
+#define SUNI1x10GEXP_REG_TXOAM_INTERRUPT_STATUS                          0x30C7
+#define SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE                 0x320C
+#define SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_INDICATION             0x320D
+#define SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK                           0x3282
+#define SUNI1x10GEXP_REG_PL4IDU_INTERRUPT                                0x3283
+
+/******************************************************************************/
+/*                 -- End register offset definitions --                      */
+/******************************************************************************/
+
+/******************************************************************************/
+/** SUNI-1x10GE-XP REGISTER BIT MASKS                                        **/
+/******************************************************************************/
+
+/*----------------------------------------------------------------------------
+ * Register 0x0004: S/UNI-1x10GE-XP Device Status
+ *    Bit 9 TOP_SXRA_EXPIRED
+ *    Bit 8 TOP_MDIO_BUSY
+ *    Bit 7 TOP_DTRB
+ *    Bit 6 TOP_EXPIRED
+ *    Bit 5 TOP_PAUSED
+ *    Bit 4 TOP_PL4_ID_DOOL
+ *    Bit 3 TOP_PL4_IS_DOOL
+ *    Bit 2 TOP_PL4_ID_ROOL
+ *    Bit 1 TOP_PL4_IS_ROOL
+ *    Bit 0 TOP_PL4_OUT_ROOL
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_TOP_SXRA_EXPIRED  0x0200
+#define SUNI1x10GEXP_BITMSK_TOP_EXPIRED       0x0040
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_ID_DOOL   0x0010
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL   0x0008
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_ID_ROOL   0x0004
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_IS_ROOL   0x0002
+#define SUNI1x10GEXP_BITMSK_TOP_PL4_OUT_ROOL  0x0001
+
+/*----------------------------------------------------------------------------
+ * Register 0x000E:PM3393 Global interrupt enable
+ *    Bit 15 TOP_INTE
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_TOP_INTE  0x8000
+
+/*----------------------------------------------------------------------------
+ * Register 0x2040: RXXG Configuration 1
+ *    Bit 15  RXXG_RXEN
+ *    Bit 14  RXXG_ROCF
+ *    Bit 13  RXXG_PAD_STRIP
+ *    Bit 10  RXXG_PUREP
+ *    Bit 9   RXXG_LONGP
+ *    Bit 8   RXXG_PARF
+ *    Bit 7   RXXG_FLCHK
+ *    Bit 5   RXXG_PASS_CTRL
+ *    Bit 3   RXXG_CRC_STRIP
+ *    Bit 2-0 RXXG_MIFG
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_RXXG_RXEN       0x8000
+#define SUNI1x10GEXP_BITMSK_RXXG_PUREP      0x0400
+#define SUNI1x10GEXP_BITMSK_RXXG_FLCHK      0x0080
+#define SUNI1x10GEXP_BITMSK_RXXG_CRC_STRIP  0x0008
+
+/*----------------------------------------------------------------------------
+ * Register 0x2070: RXXG Address Filter Control 2
+ *    Bit 1 RXXG_PMODE
+ *    Bit 0 RXXG_MHASH_EN
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_RXXG_PMODE     0x0002
+#define SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN  0x0001
+
+/*----------------------------------------------------------------------------
+ * Register 0x2100: MSTAT Control
+ *    Bit 2 MSTAT_WRITE
+ *    Bit 1 MSTAT_CLEAR
+ *    Bit 0 MSTAT_SNAP
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_MSTAT_CLEAR  0x0002
+#define SUNI1x10GEXP_BITMSK_MSTAT_SNAP   0x0001
+
+/*----------------------------------------------------------------------------
+ * Register 0x3040: TXXG Configuration Register 1
+ *    Bit 15   TXXG_TXEN0
+ *    Bit 13   TXXG_HOSTPAUSE
+ *    Bit 12-7 TXXG_IPGT
+ *    Bit 5    TXXG_32BIT_ALIGN
+ *    Bit 4    TXXG_CRCEN
+ *    Bit 3    TXXG_FCTX
+ *    Bit 2    TXXG_FCRX
+ *    Bit 1    TXXG_PADEN
+ *    Bit 0    TXXG_SPRE
+ *----------------------------------------------------------------------------*/
+#define SUNI1x10GEXP_BITMSK_TXXG_TXEN0        0x8000
+#define SUNI1x10GEXP_BITOFF_TXXG_IPGT         7
+#define SUNI1x10GEXP_BITMSK_TXXG_32BIT_ALIGN  0x0020
+#define SUNI1x10GEXP_BITMSK_TXXG_CRCEN        0x0010
+#define SUNI1x10GEXP_BITMSK_TXXG_FCTX         0x0008
+#define SUNI1x10GEXP_BITMSK_TXXG_FCRX         0x0004
+#define SUNI1x10GEXP_BITMSK_TXXG_PADEN        0x0002
+
+#endif /* _CXGB_SUNI1x10GEXP_REGS_H_ */
+