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/*******************************************************************************

  Intel PRO/1000 Linux driver
  Copyright(c) 1999 - 2006 Intel Corporation.

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information:
  Linux NICS <linux.nics@intel.com>
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 
  vim: noexpandtab

*******************************************************************************/

#include "e1000-2.6.37-ethercat.h"
#include <net/ip6_checksum.h>

char e1000_driver_name[] = "ec_e1000";
static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
#define DRV_VERSION "7.3.21-k8-NAPI"
const char e1000_driver_version[] = DRV_VERSION;
static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";

/* e1000_pci_tbl - PCI Device ID Table
 *
 * Last entry must be all 0s
 *
 * Macro expands to...
 *   {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
 */
static DEFINE_PCI_DEVICE_TABLE(e1000_pci_tbl) = {
	INTEL_E1000_ETHERNET_DEVICE(0x1000),
	INTEL_E1000_ETHERNET_DEVICE(0x1001),
	INTEL_E1000_ETHERNET_DEVICE(0x1004),
	INTEL_E1000_ETHERNET_DEVICE(0x1008),
	INTEL_E1000_ETHERNET_DEVICE(0x1009),
	INTEL_E1000_ETHERNET_DEVICE(0x100C),
	INTEL_E1000_ETHERNET_DEVICE(0x100D),
	INTEL_E1000_ETHERNET_DEVICE(0x100E),
	INTEL_E1000_ETHERNET_DEVICE(0x100F),
	INTEL_E1000_ETHERNET_DEVICE(0x1010),
	INTEL_E1000_ETHERNET_DEVICE(0x1011),
	INTEL_E1000_ETHERNET_DEVICE(0x1012),
	INTEL_E1000_ETHERNET_DEVICE(0x1013),
	INTEL_E1000_ETHERNET_DEVICE(0x1014),
	INTEL_E1000_ETHERNET_DEVICE(0x1015),
	INTEL_E1000_ETHERNET_DEVICE(0x1016),
	INTEL_E1000_ETHERNET_DEVICE(0x1017),
	INTEL_E1000_ETHERNET_DEVICE(0x1018),
	INTEL_E1000_ETHERNET_DEVICE(0x1019),
	INTEL_E1000_ETHERNET_DEVICE(0x101A),
	INTEL_E1000_ETHERNET_DEVICE(0x101D),
	INTEL_E1000_ETHERNET_DEVICE(0x101E),
	INTEL_E1000_ETHERNET_DEVICE(0x1026),
	INTEL_E1000_ETHERNET_DEVICE(0x1027),
	INTEL_E1000_ETHERNET_DEVICE(0x1028),
	INTEL_E1000_ETHERNET_DEVICE(0x1075),
	INTEL_E1000_ETHERNET_DEVICE(0x1076),
	INTEL_E1000_ETHERNET_DEVICE(0x1077),
	INTEL_E1000_ETHERNET_DEVICE(0x1078),
	INTEL_E1000_ETHERNET_DEVICE(0x1079),
	INTEL_E1000_ETHERNET_DEVICE(0x107A),
	INTEL_E1000_ETHERNET_DEVICE(0x107B),
	INTEL_E1000_ETHERNET_DEVICE(0x107C),
	INTEL_E1000_ETHERNET_DEVICE(0x108A),
	INTEL_E1000_ETHERNET_DEVICE(0x1099),
	INTEL_E1000_ETHERNET_DEVICE(0x10B5),
	/* required last entry */
	{0,}
};

// do not auto-load driver
// MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);

int e1000_up(struct e1000_adapter *adapter);
void e1000_down(struct e1000_adapter *adapter);
void e1000_reinit_locked(struct e1000_adapter *adapter);
void e1000_reset(struct e1000_adapter *adapter);
int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx);
int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
                             struct e1000_tx_ring *txdr);
static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
                             struct e1000_rx_ring *rxdr);
static void e1000_free_tx_resources(struct e1000_adapter *adapter,
                             struct e1000_tx_ring *tx_ring);
static void e1000_free_rx_resources(struct e1000_adapter *adapter,
                             struct e1000_rx_ring *rx_ring);
void e1000_update_stats(struct e1000_adapter *adapter);

static int e1000_init_module(void);
static void e1000_exit_module(void);
static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static void __devexit e1000_remove(struct pci_dev *pdev);
static int e1000_alloc_queues(struct e1000_adapter *adapter);
static int e1000_sw_init(struct e1000_adapter *adapter);
static int e1000_open(struct net_device *netdev);
static int e1000_close(struct net_device *netdev);
static void e1000_configure_tx(struct e1000_adapter *adapter);
static void e1000_configure_rx(struct e1000_adapter *adapter);
static void e1000_setup_rctl(struct e1000_adapter *adapter);
static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter);
static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter);
static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
                                struct e1000_tx_ring *tx_ring);
static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
                                struct e1000_rx_ring *rx_ring);
static void e1000_set_rx_mode(struct net_device *netdev);
static void e1000_update_phy_info(unsigned long data);
static void e1000_update_phy_info_task(struct work_struct *work);
static void e1000_watchdog(unsigned long data);
static void e1000_82547_tx_fifo_stall(unsigned long data);
static void e1000_82547_tx_fifo_stall_task(struct work_struct *work);
static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
				    struct net_device *netdev);
static struct net_device_stats * e1000_get_stats(struct net_device *netdev);
static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
static int e1000_set_mac(struct net_device *netdev, void *p);
void ec_poll(struct net_device *);
static irqreturn_t e1000_intr(int irq, void *data);
static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
			       struct e1000_tx_ring *tx_ring);
static int e1000_clean(struct napi_struct *napi, int budget);
static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
			       struct e1000_rx_ring *rx_ring,
			       int *work_done, int work_to_do);
static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
				     struct e1000_rx_ring *rx_ring,
				     int *work_done, int work_to_do);
static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
				   struct e1000_rx_ring *rx_ring,
				   int cleaned_count);
static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
					 struct e1000_rx_ring *rx_ring,
					 int cleaned_count);
static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
			   int cmd);
static void e1000_enter_82542_rst(struct e1000_adapter *adapter);
static void e1000_leave_82542_rst(struct e1000_adapter *adapter);
static void e1000_tx_timeout(struct net_device *dev);
static void e1000_reset_task(struct work_struct *work);
static void e1000_smartspeed(struct e1000_adapter *adapter);
static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
                                       struct sk_buff *skb);

static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp);
static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid);
static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid);
static void e1000_restore_vlan(struct e1000_adapter *adapter);

#ifdef CONFIG_PM
static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
static int e1000_resume(struct pci_dev *pdev);
#endif
static void e1000_shutdown(struct pci_dev *pdev);

#ifdef CONFIG_NET_POLL_CONTROLLER
/* for netdump / net console */
static void e1000_netpoll (struct net_device *netdev);
#endif

#define COPYBREAK_DEFAULT 256
static unsigned int copybreak __read_mostly = COPYBREAK_DEFAULT;
module_param(copybreak, uint, 0644);
MODULE_PARM_DESC(copybreak,
	"Maximum size of packet that is copied to a new buffer on receive");

static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
                     pci_channel_state_t state);
static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev);
static void e1000_io_resume(struct pci_dev *pdev);

static struct pci_error_handlers e1000_err_handler = {
	.error_detected = e1000_io_error_detected,
	.slot_reset = e1000_io_slot_reset,
	.resume = e1000_io_resume,
};

static struct pci_driver e1000_driver = {
	.name     = e1000_driver_name,
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