path: root/drivers/net/netxen/netxen_nic_main.c

/*
 * Copyright (C) 2003 - 2006 NetXen, Inc.
 * All rights reserved.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *                            
 * This program is distributed in the hope that 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., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
 * 
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.
 * 
 * Contact Information:
 *    info@netxen.com
 * NetXen,
 * 3965 Freedom Circle, Fourth floor,
 * Santa Clara, CA 95054
 *
 *
 *  Main source file for NetXen NIC Driver on Linux
 *
 */

#include <linux/vmalloc.h>
#include "netxen_nic_hw.h"

#include "netxen_nic.h"
#define DEFINE_GLOBAL_RECV_CRB
#include "netxen_nic_phan_reg.h"
#include "netxen_nic_ioctl.h"

#include <linux/dma-mapping.h>
#include <linux/vmalloc.h>

#define PHAN_VENDOR_ID 0x4040

MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);

char netxen_nic_driver_name[] = "netxen";
static char netxen_nic_driver_string[] = "NetXen Network Driver version "
    NETXEN_NIC_LINUX_VERSIONID;

#define NETXEN_NETDEV_WEIGHT 120
#define NETXEN_ADAPTER_UP_MAGIC 777
#define NETXEN_NIC_PEG_TUNE 0

/* Local functions to NetXen NIC driver */
static int __devinit netxen_nic_probe(struct pci_dev *pdev,
				      const struct pci_device_id *ent);
static void __devexit netxen_nic_remove(struct pci_dev *pdev);
static int netxen_nic_open(struct net_device *netdev);
static int netxen_nic_close(struct net_device *netdev);
static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *);
static void netxen_tx_timeout(struct net_device *netdev);
static void netxen_tx_timeout_task(struct net_device *netdev);
static void netxen_watchdog(unsigned long);
static int netxen_handle_int(struct netxen_adapter *, struct net_device *);
static int netxen_nic_ioctl(struct net_device *netdev,
			    struct ifreq *ifr, int cmd);
static int netxen_nic_poll(struct net_device *dev, int *budget);
#ifdef CONFIG_NET_POLL_CONTROLLER
static void netxen_nic_poll_controller(struct net_device *netdev);
#endif
static irqreturn_t netxen_intr(int irq, void *data);

/*  PCI Device ID Table  */
static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
	{PCI_DEVICE(0x4040, 0x0001)},
	{PCI_DEVICE(0x4040, 0x0002)},
	{PCI_DEVICE(0x4040, 0x0003)},
	{PCI_DEVICE(0x4040, 0x0004)},
	{PCI_DEVICE(0x4040, 0x0005)},
	{0,}
};

MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);

/*
 * netxen_nic_probe()
 *
 * The Linux system will invoke this after identifying the vendor ID and
 * device Id in the pci_tbl supported by this module.
 *
 * A quad port card has one operational PCI config space, (function 0),
 * which is used to access all four ports.
 *
 * This routine will initialize the adapter, and setup the global parameters
 * along with the port's specific structure.
 */
static int __devinit
netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	struct net_device *netdev = NULL;
	struct netxen_adapter *adapter = NULL;
	struct netxen_port *port = NULL;
	u8 *mem_ptr0 = NULL;
	u8 *mem_ptr1 = NULL;
	u8 *mem_ptr2 = NULL;

	unsigned long mem_base, mem_len;
	int pci_using_dac, i, err;
	int ring;
	struct netxen_recv_context *recv_ctx = NULL;
	struct netxen_rcv_desc_ctx *rcv_desc = NULL;
	struct netxen_cmd_buffer *cmd_buf_arr = NULL;
	u64 mac_addr[FLASH_NUM_PORTS