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Release 4.11 drivers/net/ethernet/8390/axnet_cs.c

Directory: drivers/net/ethernet/8390
/*======================================================================

    A PCMCIA ethernet driver for Asix AX88190-based cards

    The Asix AX88190 is a NS8390-derived chipset with a few nasty
    idiosyncracies that make it very inconvenient to support with a
    standard 8390 driver.  This driver is based on pcnet_cs, with the
    tweaked 8390 code grafted on the end.  Much of what I did was to
    clean up and update a similar driver supplied by Asix, which was
    adapted by William Lee, william@asix.com.tw.

    Copyright (C) 2001 David A. Hinds -- dahinds@users.sourceforge.net

    axnet_cs.c 1.28 2002/06/29 06:27:37

    The network driver code is based on Donald Becker's NE2000 code:

    Written 1992,1993 by Donald Becker.
    Copyright 1993 United States Government as represented by the
    Director, National Security Agency.  This software may be used and
    distributed according to the terms of the GNU General Public License,
    incorporated herein by reference.
    Donald Becker may be reached at becker@scyld.com

======================================================================*/


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/ptrace.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/crc32.h>
#include <linux/mii.h>
#include "8390.h"

#include <pcmcia/cistpl.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/ds.h>
#include <pcmcia/cisreg.h>

#include <asm/io.h>
#include <asm/byteorder.h>
#include <linux/uaccess.h>


#define AXNET_CMD	0x00

#define AXNET_DATAPORT	0x10	
/* NatSemi-defined port window offset. */

#define AXNET_RESET	0x1f	
/* Issue a read to reset, a write to clear. */

#define AXNET_MII_EEP	0x14	
/* Offset of MII access port */

#define AXNET_TEST	0x15	
/* Offset of TEST Register port */

#define AXNET_GPIO	0x17	
/* Offset of General Purpose Register Port */


#define AXNET_START_PG	0x40	
/* First page of TX buffer */

#define AXNET_STOP_PG	0x80	
/* Last page +1 of RX ring */


#define AXNET_RDC_TIMEOUT 0x02	
/* Max wait in jiffies for Tx RDC */


#define IS_AX88190	0x0001

#define IS_AX88790	0x0002

/*====================================================================*/

/* Module parameters */

MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
MODULE_DESCRIPTION("Asix AX88190 PCMCIA ethernet driver");
MODULE_LICENSE("GPL");


/*====================================================================*/

static int axnet_config(struct pcmcia_device *link);
static void axnet_release(struct pcmcia_device *link);
static int axnet_open(struct net_device *dev);
static int axnet_close(struct net_device *dev);
static int axnet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static netdev_tx_t axnet_start_xmit(struct sk_buff *skb,
					  struct net_device *dev);
static struct net_device_stats *get_stats(struct net_device *dev);
static void set_multicast_list(struct net_device *dev);
static void axnet_tx_timeout(struct net_device *dev);
static irqreturn_t ei_irq_wrapper(int irq, void *dev_id);
static void ei_watchdog(u_long arg);
static void axnet_reset_8390(struct net_device *dev);

static int mdio_read(unsigned int addr, int phy_id, int loc);
static void mdio_write(unsigned int addr, int phy_id, int loc, int value);

static void get_8390_hdr(struct net_device *,
			 struct e8390_pkt_hdr *, int);
static void block_input(struct net_device *dev, int count,
			struct sk_buff *skb, int ring_offset);
static void block_output(struct net_device *dev, int count,
			 const u_char *buf, const int start_page);

static void axnet_detach(struct pcmcia_device *p_dev);

static void AX88190_init(struct net_device *dev, int startp);
static int ax_open(struct net_device *dev);
static int ax_close(struct net_device *dev);
static irqreturn_t ax_interrupt(int irq, void *dev_id);

static u32 axnet_msg_enable;

/*====================================================================*/


struct axnet_dev {
	
struct pcmcia_device	*p_dev;
	
caddr_t	base;
	
struct timer_list	watchdog;
	

int	stale, fast_poll;
	
u_short	link_status;
	
u_char	duplex_flag;
	
int	phy_id;
	
int	flags;
	
int	active_low;
};




static inline struct axnet_dev *PRIV(struct net_device *dev)
{
	void *p = (char *)netdev_priv(dev) + sizeof(struct ei_device);
	return p;
}


Contributors
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Al Viro2363.89%133.33%


Linus Torvalds1130.56%133.33%


Himangi Saraogi25.56%133.33%


Total36100.00%3100.00%




static const struct net_device_ops axnet_netdev_ops = {
	.ndo_open 		= axnet_open,
	.ndo_stop		= axnet_close,
	.ndo_do_ioctl		= axnet_ioctl,
	.ndo_start_xmit		= axnet_start_xmit,
	.ndo_tx_timeout		= axnet_tx_timeout,
	.ndo_get_stats		= get_stats,
	.ndo_set_rx_mode	= set_multicast_list,
	.ndo_set_mac_address 	= eth_mac_addr,
	.ndo_validate_addr	= eth_validate_addr,
};




static int axnet_probe(struct pcmcia_device *link)
{
    struct axnet_dev *info;
    struct net_device *dev;
    struct ei_device *ei_local;

    dev_dbg(&link->dev, "axnet_attach()\n");

    dev = alloc_etherdev(sizeof(struct ei_device) + sizeof(struct axnet_dev));
    if (!dev)
	return -ENOMEM;

    ei_local = netdev_priv(dev);
    ei_local->msg_enable = axnet_msg_enable;
    spin_lock_init(&ei_local->page_lock);

    info = PRIV(dev);
    info->p_dev = link;
    link->priv = dev;
    link->config_flags |= CONF_ENABLE_IRQ;

    dev->netdev_ops = &axnet_netdev_ops;

    dev->watchdog_timeo = TX_TIMEOUT;

    return axnet_config(link);
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds5644.09%19.09%


Stephen Hemminger2922.83%19.09%


Dominik Brodowski2015.75%654.55%


Al Viro129.45%19.09%


Matthew Whitehead64.72%19.09%


Himangi Saraogi43.15%19.09%


Total127100.00%11100.00%



/* axnet_attach */




static void axnet_detach(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;

    dev_dbg(&link->dev, "axnet_detach(0x%p)\n", link);

    unregister_netdev(dev);

    axnet_release(link);

    free_netdev(dev);
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds2553.19%114.29%


Dominik Brodowski817.02%342.86%


Stephen Hemminger612.77%114.29%


Russell King510.64%114.29%


Al Viro36.38%114.29%


Total47100.00%7100.00%



/* axnet_detach */

/*======================================================================

    This probes for a card's hardware address by reading the PROM.

======================================================================*/




static int get_prom(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    unsigned int ioaddr = dev->base_addr;
    int i, j;

    /* This is based on drivers/net/ethernet/8390/ne.c */
    struct {
	u_char value, offset;
    } program_seq[] = {
	{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
	{0x01,	EN0_DCFG},	/* Set word-wide access. */
	{0x00,	EN0_RCNTLO},	/* Clear the count regs. */
	{0x00,	EN0_RCNTHI},
	{0x00,	EN0_IMR},	/* Mask completion irq. */
	{0xFF,	EN0_ISR},
	{E8390_RXOFF|0x40, EN0_RXCR},	/* 0x60  Set to monitor */
	{E8390_TXOFF, EN0_TXCR},	/* 0x02  and loopback mode. */
	{0x10,	EN0_RCNTLO},
	{0x00,	EN0_RCNTHI},
	{0x00,	EN0_RSARLO},	/* DMA starting at 0x0400. */
	{0x04,	EN0_RSARHI},
	{E8390_RREAD+E8390_START, E8390_CMD},
    };

    /* Not much of a test, but the alternatives are messy */
    if (link->config_base != 0x03c0)
	return 0;

    axnet_reset_8390(dev);
    mdelay(10);

    for (i = 0; i < ARRAY_SIZE(program_seq); i++)
	outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);

    for (i = 0; i < 6; i += 2) {
	j = inw(ioaddr + AXNET_DATAPORT);
	dev->dev_addr[i] = j & 0xff;
	dev->dev_addr[i+1] = j >> 8;
    }
    return 1;
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds23995.98%114.29%


David Hinds31.20%114.29%


Dominik Brodowski31.20%228.57%


Olof Johansson20.80%114.29%


Paul Gortmaker10.40%114.29%


Cheng Renquan10.40%114.29%


Total249100.00%7100.00%



/* get_prom */




static int try_io_port(struct pcmcia_device *link)
{
    int j, ret;
    link->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
    link->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
    if (link->resource[0]->end == 32) {
	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
	/* for master/slave multifunction cards */
	if (link->resource[1]->end > 0)
	    link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
    } else {
	/* This should be two 16-port windows */
	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
	link->resource[1]->flags |= IO_DATA_PATH_WIDTH_16;
    }
    if (link->resource[0]->start == 0) {
	for (j = 0; j < 0x400; j += 0x20) {
	    link->resource[0]->start = j ^ 0x300;
	    link->resource[1]->start = (j ^ 0x300) + 0x10;
	    link->io_lines = 16;
	    ret = pcmcia_request_io(link);
	    if (ret == 0)
		    return ret;
	}
	return ret;
    } else {
	return pcmcia_request_io(link);
    }
}


Contributors
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Linus Torvalds11855.66%116.67%


Dominik Brodowski9243.40%466.67%


Andrew Morton20.94%116.67%


Total212100.00%6100.00%






static int axnet_configcheck(struct pcmcia_device *p_dev, void *priv_data)
{
	if (p_dev->config_index == 0)
		return -EINVAL;

	p_dev->config_index = 0x05;
	if (p_dev->resource[0]->end + p_dev->resource[1]->end < 32)
		return -ENODEV;

	return try_io_port(p_dev);
}


Contributors
PersonTokensPropCommitsCommitProp
Dominik Brodowski4467.69%666.67%


Linus Torvalds1827.69%111.11%


Andrew Morton23.08%111.11%


David Hinds11.54%111.11%


Total65100.00%9100.00%






static int axnet_config(struct pcmcia_device *link)
{
    struct net_device *dev = link->priv;
    struct axnet_dev *info = PRIV(dev);
    int i, j, j2, ret;

    dev_dbg(&link->dev, "axnet_config(0x%p)\n", link);

    /* don't trust the CIS on this; Linksys got it wrong */
    link->config_regs = 0x63;
    link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
    ret = pcmcia_loop_config(link, axnet_configcheck, NULL);
    if (ret != 0)
	goto failed;

    if (!link->irq)
	    goto failed;

    if (resource_size(link->resource[1]) == 8)
	link->config_flags |= CONF_ENABLE_SPKR;
    
    ret = pcmcia_enable_device(link);
    if (ret)
	    goto failed;

    dev->irq = link->irq;
    dev->base_addr = link->resource[0]->start;

    if (!get_prom(link)) {
	pr_notice("this is not an AX88190 card!\n");
	pr_notice("use pcnet_cs instead.\n");
	goto failed;
    }

    ei_status.name = "AX88190";
    ei_status.word16 = 1;
    ei_status.tx_start_page = AXNET_START_PG;
    ei_status.rx_start_page = AXNET_START_PG + TX_PAGES;
    ei_status.stop_page = AXNET_STOP_PG;
    ei_status.reset_8390 = axnet_reset_8390;
    ei_status.get_8390_hdr = get_8390_hdr;
    ei_status.block_input = block_input;
    ei_status.block_output = block_output;

    if (inb(dev->base_addr + AXNET_TEST) != 0)
	info->flags |= IS_AX88790;
    else
	info->flags |= IS_AX88190;

    if (info->flags & IS_AX88790)
	outb(0x10, dev->base_addr + AXNET_GPIO);  /* select Internal PHY */

    info->active_low = 0;

    for (i = 0; i < 32; i++) {
	j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1);
	j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2);
	if (j == j2) continue;
	if ((j != 0) && (j != 0xffff)) break;
    }

    if (i == 32) {
	/* Maybe PHY is in power down mode. (PPD_SET = 1)
           Bit 2 of CCSR is active low. */
	pcmcia_write_config_byte(link, CISREG_CCSR, 0x04);
	for (i = 0; i < 32; i++) {
	    j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1);
	    j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2);
	    if (j == j2) continue;
	    if ((j != 0) && (j != 0xffff)) {
		info->active_low = 1;
		break;
	    }
	}
    }

    info->phy_id = (i < 32) ? i : -1;
    SET_NETDEV_DEV(dev, &link->dev);

    if (register_netdev(dev) != 0) {
	pr_notice("register_netdev() failed\n");
	goto failed;
    }

    netdev_info(dev, "Asix AX88%d90: io %#3lx, irq %d, hw_addr %pM\n",
		((info->flags & IS_AX88790) ? 7 : 1),
		dev->base_addr, dev->irq, dev->dev_addr);
    if (info->phy_id != -1) {
	netdev_dbg(dev, "  MII transceiver at index %d, status %x\n",
		   info->phy_id, j);
    } else {
	netdev_notice(dev, "  No MII transceivers found!\n");
    }
    return 0;

failed:
    axnet_release(link);
    return -ENODEV;
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds20536.16%14.35%


Dominik Brodowski12021.16%1356.52%


David Hinds9116.05%14.35%


Ken Kawasaki6110.76%28.70%


Andrew Morton539.35%28.70%


Al Viro193.35%14.35%


Joe Perches162.82%28.70%


Himangi Saraogi20.35%14.35%


Total567100.00%23100.00%



/* axnet_config */




static void axnet_release(struct pcmcia_device *link)
{
	pcmcia_disable_device(link);
}


Contributors
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Linus Torvalds1168.75%125.00%


Dominik Brodowski318.75%250.00%


Christoph Hellwig212.50%125.00%


Total16100.00%4100.00%






static int axnet_suspend(struct pcmcia_device *link)
{
	struct net_device *dev = link->priv;

	if (link->open)
		netif_device_detach(dev);

	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds2367.65%125.00%


Dominik Brodowski823.53%250.00%


Al Viro38.82%125.00%


Total34100.00%4100.00%






static int axnet_resume(struct pcmcia_device *link)
{
	struct net_device *dev = link->priv;
	struct axnet_dev *info = PRIV(dev);

	if (link->open) {
		if (info->active_low == 1)
			pcmcia_write_config_byte(link, CISREG_CCSR, 0x04);

		axnet_reset_8390(dev);
		AX88190_init(dev, 1);
		netif_device_attach(dev);
	}

	return 0;
}



Contributors
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Ken Kawasaki2533.33%116.67%


Linus Torvalds2432.00%116.67%


Dominik Brodowski2330.67%233.33%


Himangi Saraogi22.67%116.67%


David Hinds11.33%116.67%


Total75100.00%6100.00%



/*======================================================================

    MII interface support

======================================================================*/


#define MDIO_SHIFT_CLK		0x01

#define MDIO_DATA_WRITE0	0x00

#define MDIO_DATA_WRITE1	0x08

#define MDIO_DATA_READ		0x04

#define MDIO_MASK		0x0f

#define MDIO_ENB_IN		0x02




static void mdio_sync(unsigned int addr)
{
    int bits;
    for (bits = 0; bits < 32; bits++) {
	outb_p(MDIO_DATA_WRITE1, addr);
	outb_p(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
    }
}


Contributors
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Linus Torvalds4295.45%150.00%


Olof Johansson24.55%150.00%


Total44100.00%2100.00%






static int mdio_read(unsigned int addr, int phy_id, int loc)
{
    u_int cmd = (0xf6<<10)|(phy_id<<5)|loc;
    int i, retval = 0;

    mdio_sync(addr);
    for (i = 14; i >= 0; i--) {
	int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
	outb_p(dat, addr);
	outb_p(dat | MDIO_SHIFT_CLK, addr);
    }
    for (i = 19; i > 0; i--) {
	outb_p(MDIO_ENB_IN, addr);
	retval = (retval << 1) | ((inb_p(addr) & MDIO_DATA_READ) != 0);
	outb_p(MDIO_ENB_IN | MDIO_SHIFT_CLK, addr);
    }
    return (retval>>1) & 0xffff;
}


Contributors
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Linus Torvalds15298.70%150.00%


Olof Johansson21.30%150.00%


Total154100.00%2100.00%






static void mdio_write(unsigned int addr, int phy_id, int loc, int value)
{
    u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
    int i;

    mdio_sync(addr);
    for (i = 31; i >= 0; i--) {
	int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
	outb_p(dat, addr);
	outb_p(dat | MDIO_SHIFT_CLK, addr);
    }
    for (i = 1; i >= 0; i--) {
	outb_p(MDIO_ENB_IN, addr);
	outb_p(MDIO_ENB_IN | MDIO_SHIFT_CLK, addr);
    }
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds13398.52%150.00%


Olof Johansson21.48%150.00%


Total135100.00%2100.00%



/*====================================================================*/




static int axnet_open(struct net_device *dev)
{
    int ret;
    struct axnet_dev *info = PRIV(dev);
    struct pcmcia_device *link = info->p_dev;
    unsigned int nic_base = dev->base_addr;
    
    dev_dbg(&link->dev, "axnet_open('%s')\n", dev->name);

    if (!pcmcia_dev_present(link))
	return -ENODEV;

    outb_p(0xFF, nic_base + EN0_ISR); /* Clear bogus intr. */
    ret = request_irq(dev->irq, ei_irq_wrapper, IRQF_SHARED, "axnet_cs", dev);
    if (ret)
	    return ret;

    link->open++;

    info->link_status = 0x00;
    setup_timer(&info->watchdog, ei_watchdog, (u_long)dev);
    mod_timer(&info->watchdog, jiffies + HZ);

    return ax_open(dev);
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds7954.48%17.14%


Jun Komuro1812.41%17.14%


Yoichi Yuasa1711.72%17.14%


Dominik Brodowski106.90%535.71%


Vaishali Thakkar85.52%17.14%


Andrew Morton53.45%17.14%


Al Viro42.76%17.14%


Himangi Saraogi21.38%17.14%


Thomas Gleixner10.69%17.14%


David Hinds10.69%17.14%


Total145100.00%14100.00%



/* axnet_open */

/*====================================================================*/




static int axnet_close(struct net_device *dev)
{
    struct axnet_dev *info = PRIV(dev);
    struct pcmcia_device *link = info->p_dev;

    dev_dbg(&link->dev, "axnet_close('%s')\n", dev->name);

    ax_close(dev);
    free_irq(dev->irq, dev);
    
    link->open--;
    netif_stop_queue(dev);
    del_timer_sync(&info->watchdog);

    return 0;
} 
Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds6075.95%112.50%


Dominik Brodowski810.13%337.50%


David Hinds56.33%112.50%


Al Viro33.80%112.50%


Himangi Saraogi22.53%112.50%


Alan Cox11.27%112.50%


Total79100.00%8100.00%



/* axnet_close */

/*======================================================================

    Hard reset the card.  This used to pause for the same period that
    a 8390 reset command required, but that shouldn't be necessary.

======================================================================*/




static void axnet_reset_8390(struct net_device *dev)
{
    unsigned int nic_base = dev->base_addr;
    int i;

    ei_status.txing = ei_status.dmaing = 0;

    outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, nic_base + E8390_CMD);

    outb(inb(nic_base + AXNET_RESET), nic_base + AXNET_RESET);

    for (i = 0; i < 100; i++) {
	if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0)
	    break;
	udelay(100);
    }
    outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */
    
    if (i == 100)
	netdev_err(dev, "axnet_reset_8390() did not complete\n");
    
} 
Contributors
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Linus Torvalds11395.76%133.33%


Joe Perches32.54%133.33%


Olof Johansson21.69%133.33%


Total118100.00%3100.00%



/* axnet_reset_8390 */

/*====================================================================*/




static irqreturn_t ei_irq_wrapper(int irq, void *dev_id)
{
    struct net_device *dev = dev_id;
    PRIV(dev)->stale = 0;
    return ax_interrupt(irq, dev_id);
}


Contributors
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Linus Torvalds2670.27%125.00%


Al Viro718.92%125.00%


Jeff Garzik38.11%125.00%


David Hinds12.70%125.00%


Total37100.00%4100.00%






static void ei_watchdog(u_long arg)
{
    struct net_device *dev = (struct net_device *)(arg);
    struct axnet_dev *info = PRIV(dev);
    unsigned int nic_base = dev->base_addr;
    unsigned int mii_addr = nic_base + AXNET_MII_EEP;
    u_short link;

    if (!netif_device_present(dev)) goto reschedule;

    /* Check for pending interrupt with expired latency timer: with
       this, we can limp along even if the interrupt is blocked */
    if (info->stale++ && (inb_p(nic_base + EN0_ISR) & ENISR_ALL)) {
	if (!info->fast_poll)
	    netdev_info(dev, "interrupt(s) dropped!\n");
	ei_irq_wrapper(dev->irq, dev);
	info->fast_poll = HZ;
    }
    if (info->fast_poll) {
	info->fast_poll--;
	info->watchdog.expires = jiffies + 1;
	add_timer(&info->watchdog);
	return;
    }

    if (info->phy_id < 0)
	goto reschedule;
    link = mdio_read(mii_addr, info->phy_id, 1);
    if (!link || (link == 0xffff)) {
	netdev_info(dev, "MII is missing!\n");
	info->phy_id = -1;
	goto reschedule;
    }

    link &= 0x0004;
    if (link != info->link_status) {
	u_short p = mdio_read(mii_addr, info->phy_id, 5);
	netdev_info(dev, "%s link beat\n", link ? "found" : "lost");
	if (link) {
	    info->duplex_flag = (p & 0x0140) ? 0x80 : 0x00;
	    if (p)
		netdev_info(dev, "autonegotiation complete: %dbaseT-%cD selected\n",
			    (p & 0x0180) ? 100 : 10, (p & 0x0140) ? 'F' : 'H');
	    else
		netdev_info(dev, "link partner did not autonegotiate\n");
	    AX88190_init(dev, 1);
	}
	info->link_status = link;
    }

reschedule:
    info->watchdog.expires = jiffies + HZ;
    add_timer(&info->watchdog);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds29990.06%116.67%


Joe Perches175.12%116.67%


Al Viro92.71%116.67%


Olof Johansson41.20%116.67%


Himangi Saraogi20.60%116.67%


David Hinds10.30%116.67%


Total332100.00%6100.00%



/*====================================================================*/




static int axnet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
    struct axnet_dev *info = PRIV(dev);
    struct mii_ioctl_data *data = if_mii(rq);
    unsigned int mii_addr = dev->base_addr + AXNET_MII_EEP;
    switch (cmd) {
    case SIOCGMIIPHY:
	data->phy_id = info->phy_id;
    case SIOCGMIIREG:		/* Read MII PHY register. */
	data->val_out = mdio_read(mii_addr, data->phy_id, data->reg_num & 0x1f);
	return 0;
    case SIOCSMIIREG:		/* Write MII PHY register. */
	mdio_write(mii_addr, data->phy_id, data->reg_num & 0x1f, data->val_in);
	return 0;
    }
    return -EOPNOTSUPP;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds9174.59%116.67%


Ben Hutchings1915.57%116.67%


Jeff Garzik54.10%116.67%


Al Viro32.46%116.67%


Himangi Saraogi21.64%116.67%


Olof Johansson21.64%116.67%


Total122100.00%6100.00%



/*====================================================================*/




static void get_8390_hdr(struct net_device *dev,
			 struct e8390_pkt_hdr *hdr,
			 int ring_page)
{
    unsigned int nic_base = dev->base_addr;

    outb_p(0, nic_base + EN0_RSARLO);		/* On page boundary */
    outb_p(ring_page, nic_base + EN0_RSARHI);
    outb_p(E8390_RREAD+E8390_START, nic_base + AXNET_CMD);

    insw(nic_base + AXNET_DATAPORT, hdr,
	    sizeof(struct e8390_pkt_hdr)>>1);
    /* Fix for big endian systems */
    hdr->count = le16_to_cpu(hdr->count);

}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds8497.67%150.00%


Olof Johansson22.33%150.00%


Total86100.00%2100.00%



/*====================================================================*/




static void block_input(struct net_device *dev, int count,
			struct sk_buff *skb, int ring_offset)
{
    unsigned int nic_base = dev->base_addr;
    struct ei_device *ei_local = netdev_priv(dev);
    int xfer_count = count;
    char *buf = skb->data;

    if ((netif_msg_rx_status(ei_local)) && (count != 4))
	netdev_dbg(dev, "[bi=%d]\n", count+4);
    outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO);
    outb_p(ring_offset >> 8, nic_base + EN0_RSARHI);
    outb_p(E8390_RREAD+E8390_START, nic_base + AXNET_CMD);

    insw(nic_base + AXNET_DATAPORT,buf,count>>1);
    if (count & 0x01)
	buf[count-1] = inb(nic_base + AXNET_DATAPORT), xfer_count++;

}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds12987.16%133.33%


Matthew Whitehead1711.49%133.33%


Olof Johansson21.35%133.33%


Total148100.00%3100.00%



/*====================================================================*/




static void block_output(struct net_device *dev, int count,
			 const u_char *buf, const int start_page)
{
    unsigned int nic_base = dev->base_addr;

    pr_debug("%s: [bo=%d]\n", dev->name, count);

    /* Round the count up for word writes.  Do we need to do this?
       What effect will an odd byte count have on the 8390?
       I should check someday. */
    if (count & 0x01)
	count++;

    outb_p(0x00, nic_base + EN0_RSARLO);
    outb_p(start_page, nic_base + EN0_RSARHI);
    outb_p(E8390_RWRITE+E8390_START, nic_base + AXNET_CMD);
    outsw(nic_base + AXNET_DATAPORT, buf, count>>1);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds9196.81%133.33%


Olof Johansson22.13%133.33%


Dominik Brodowski11.06%133.33%


Total94100.00%3100.00%




static const struct pcmcia_device_id axnet_ids[] = {
	PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x016c, 0x0081),
	PCMCIA_DEVICE_MANF_CARD(0x018a, 0x0301),
	PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x2328),
	PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0301),
	PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0303),
	PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0309),
	PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1106),
	PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab),
	PCMCIA_DEVICE_MANF_CARD(0x021b, 0x0202), 
	PCMCIA_DEVICE_MANF_CARD(0xffff, 0x1090),
	PCMCIA_DEVICE_PROD_ID12("AmbiCom,Inc.", "Fast Ethernet PC Card(AMB8110)", 0x49b020a7, 0x119cc9fc),
	PCMCIA_DEVICE_PROD_ID124("Fast Ethernet", "16-bit PC Card", "AX88190", 0xb4be14e3, 0x9a12eb6a, 0xab9be5ef),
	PCMCIA_DEVICE_PROD_ID12("ASIX", "AX88190", 0x0959823b, 0xab9be5ef),
	PCMCIA_DEVICE_PROD_ID12("Billionton", "LNA-100B", 0x552ab682, 0xbc3b87e1),
	PCMCIA_DEVICE_PROD_ID12("CHEETAH ETHERCARD", "EN2228", 0x00fa7bc8, 0x00e990cc),
	PCMCIA_DEVICE_PROD_ID12("CNet", "CNF301", 0xbc477dde, 0x78c5f40b),
	PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FEther PCC-TXD", 0x5261440f, 0x436768c5),
	PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FEtherII PCC-TXD", 0x5261440f, 0x730df72e),
	PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FEther PCC-TXM", 0x5261440f, 0x3abbd061),
	PCMCIA_DEVICE_PROD_ID12("Dynalink", "L100C16", 0x55632fd5, 0x66bc2a90),
	PCMCIA_DEVICE_PROD_ID12("IO DATA", "ETXPCM", 0x547e66dc, 0x233adac2),
	PCMCIA_DEVICE_PROD_ID12("Linksys", "EtherFast 10/100 PC Card (PCMPC100 V3)", 0x0733cc81, 0x232019a8),
	PCMCIA_DEVICE_PROD_ID12("MELCO", "LPC3-TX", 0x481e0094, 0xf91af609),
	PCMCIA_DEVICE_PROD_ID12("NETGEAR", "FA411", 0x9aa79dc3, 0x40fad875),
	PCMCIA_DEVICE_PROD_ID12("PCMCIA", "100BASE", 0x281f1c5d, 0x7c2add04),
	PCMCIA_DEVICE_PROD_ID12("PCMCIA", "FastEtherCard", 0x281f1c5d, 0x7ef26116),
	PCMCIA_DEVICE_PROD_ID12("PCMCIA", "FEP501", 0x281f1c5d, 0x2e272058),
	PCMCIA_DEVICE_PROD_ID14("Network Everywhere", "AX88190", 0x820a67b6,  0xab9be5ef),
	PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, axnet_ids);


static struct pcmcia_driver axnet_cs_driver = {
	.owner		= THIS_MODULE,
	.name		= "axnet_cs",
	.probe		= axnet_probe,
	.remove		= axnet_detach,
	.id_table       = axnet_ids,
	.suspend	= axnet_suspend,
	.resume		= axnet_resume,
};

module_pcmcia_driver(axnet_cs_driver);

/*====================================================================*/

/* 8390.c: A general NS8390 ethernet driver core for linux. */
/*
        Written 1992-94 by Donald Becker.
  
        Copyright 1993 United States Government as represented by the
        Director, National Security Agency.

        This software may be used and distributed according to the terms
        of the GNU General Public License, incorporated herein by reference.

        The author may be reached as becker@scyld.com, or C/O
        Scyld Computing Corporation
        410 Severn Ave., Suite 210
        Annapolis MD 21403

  This is the chip-specific code for many 8390-based ethernet adaptors.
  This is not a complete driver, it must be combined with board-specific
  code such as ne.c, wd.c, 3c503.c, etc.

  Seeing how at least eight drivers use this code, (not counting the
  PCMCIA ones either) it is easy to break some card by what seems like
  a simple innocent change. Please contact me or Donald if you think
  you have found something that needs changing. -- PG

  Changelog:

  Paul Gortmaker        : remove set_bit lock, other cleanups.
  Paul Gortmaker        : add ei_get_8390_hdr() so we can pass skb's to 
                          ei_block_input() for eth_io_copy_and_sum().
  Paul Gortmaker        : exchange static int ei_pingpong for a #define,
                          also add better Tx error handling.
  Paul Gortmaker        : rewrite Rx overrun handling as per NS specs.
  Alexey Kuznetsov      : use the 8390's six bit hash multicast filter.
  Paul Gortmaker        : tweak ANK's above multicast changes a bit.
  Paul Gortmaker        : update packet statistics for v2.1.x
  Alan Cox              : support arbitrary stupid port mappings on the
                          68K Macintosh. Support >16bit I/O spaces
  Paul Gortmaker        : add kmod support for auto-loading of the 8390
                          module by all drivers that require it.
  Alan Cox              : Spinlocking work, added 'BUG_83C690'
  Paul Gortmaker        : Separate out Tx timeout code from Tx path.

  Sources:
  The National Semiconductor LAN Databook, and the 3Com 3c503 databook.

  */

#include <linux/bitops.h>
#include <asm/irq.h>
#include <linux/fcntl.h>
#include <linux/in.h>
#include <linux/interrupt.h>


#define BUG_83C690

/* These are the operational function interfaces to board-specific
   routines.
        void reset_8390(struct net_device *dev)
                Resets the board associated with DEV, including a hardware reset of
                the 8390.  This is only called when there is a transmit timeout, and
                it is always followed by 8390_init().
        void block_output(struct net_device *dev, int count, const unsigned char *buf,
                                          int start_page)
                Write the COUNT bytes of BUF to the packet buffer at START_PAGE.  The
                "page" value uses the 8390's 256-byte pages.
        void get_8390_hdr(struct net_device *dev, struct e8390_hdr *hdr, int ring_page)
                Read the 4 byte, page aligned 8390 header. *If* there is a
                subsequent read, it will be of the rest of the packet.
        void block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
                Read COUNT bytes from the packet buffer into the skb data area. Start 
                reading from RING_OFFSET, the address as the 8390 sees it.  This will always
                follow the read of the 8390 header. 
*/

#define ei_reset_8390 (ei_local->reset_8390)

#define ei_block_output (ei_local->block_output)

#define ei_block_input (ei_local->block_input)

#define ei_get_8390_hdr (ei_local->get_8390_hdr)

/* Index to functions. */
static void ei_tx_intr(struct net_device *dev);
static void ei_tx_err(struct net_device *dev);
static void ei_receive(struct net_device *dev);
static void ei_rx_overrun(struct net_device *dev);

/* Routines generic to NS8390-based boards. */
static void NS8390_trigger_send(struct net_device *dev, unsigned int length,
								int start_page);
static void do_set_multicast_list(struct net_device *dev);

/*
 *      SMP and the 8390 setup.
 *
 *      The 8390 isn't exactly designed to be multithreaded on RX/TX. There is
 *      a page register that controls bank and packet buffer access. We guard
 *      this with ei_local->page_lock. Nobody should assume or set the page other
 *      than zero when the lock is not held. Lock holders must restore page 0
 *      before unlocking. Even pure readers must take the lock to protect in 
 *      page 0.
 *
 *      To make life difficult the chip can also be very slow. We therefore can't
 *      just use spinlocks. For the longer lockups we disable the irq the device
 *      sits on and hold the lock. We must hold the lock because there is a dual
 *      processor case other than interrupts (get stats/set multicast list in
 *      parallel with each other and transmit).
 *
 *      Note: in theory we can just disable the irq on the card _but_ there is
 *      a latency on SMP irq delivery. So we can easily go "disable irq" "sync irqs"
 *      enter lock, take the queued irq. So we waddle instead of flying.
 *
 *      Finally by special arrangement for the purpose of being generally 
 *      annoying the transmit function is called bh atomic. That places
 *      restrictions on the user context callers as disable_irq won't save
 *      them.
 */
 
/**
 * ax_open - Open/initialize the board.
 * @dev: network device to initialize
 *
 * This routine goes all-out, setting everything
 * up anew at each open, even though many of these registers should only
 * need to be set once at boot.
 */



static int ax_open(struct net_device *dev)
{
	unsigned long flags;
	struct ei_device *ei_local = netdev_priv(dev);

	/*
         *      Grab the page lock so we own the register set, then call
         *      the init function.
         */
      
      	spin_lock_irqsave(&ei_local->page_lock, flags);
	AX88190_init(dev, 1);
	/* Set the flag before we drop the lock, That way the IRQ arrives
           after its set and we get no silly warnings */
	netif_start_queue(dev);
      	spin_unlock_irqrestore(&ei_local->page_lock, flags);
	ei_local->irqlock = 0;
	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds6494.12%133.33%


Al Viro22.94%133.33%


David Hinds22.94%133.33%


Total68100.00%3100.00%




#define dev_lock(dev) (((struct ei_device *)netdev_priv(dev))->page_lock)

/**
 * ax_close - shut down network device
 * @dev: network device to close
 *
 * Opposite of ax_open(). Only used when "ifconfig <devname> down" is done.
 */



static int ax_close(struct net_device *dev)
{
	unsigned long flags;

	/*
         *      Hold the page lock during close
         */

	spin_lock_irqsave(&dev_lock(dev), flags);
	AX88190_init(dev, 0);
	spin_unlock_irqrestore(&dev_lock(dev), flags);
	netif_stop_queue(dev);
	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds4381.13%133.33%


David Hinds916.98%133.33%


Richard Knutsson11.89%133.33%


Total53100.00%3100.00%



/**
 * axnet_tx_timeout - handle transmit time out condition
 * @dev: network device which has apparently fallen asleep
 *
 * Called by kernel when device never acknowledges a transmit has
 * completed (or failed) - i.e. never posted a Tx related interrupt.
 */




static void axnet_tx_timeout(struct net_device *dev)
{
	long e8390_base = dev->base_addr;
	struct ei_device *ei_local = netdev_priv(dev);
	int txsr, isr, tickssofar = jiffies - dev_trans_start(dev);
	unsigned long flags;

	dev->stats.tx_errors++;

	spin_lock_irqsave(&ei_local->page_lock, flags);
	txsr = inb(e8390_base+EN0_TSR);
	isr = inb(e8390_base+EN0_ISR);
	spin_unlock_irqrestore(&ei_local->page_lock, flags);

	netdev_dbg(dev, "Tx timed out, %s TSR=%#2x, ISR=%#2x, t=%d.\n",
		   (txsr & ENTSR_ABT) ? "excess collisions." :
		   (isr) ? "lost interrupt?" : "cable problem?",
		   txsr, isr, tickssofar);

	if (!isr && !dev->stats.tx_packets) 
	{
		/* The 8390 probably hasn't gotten on the cable yet. */
		ei_local->interface_num ^= 1;   /* Try a different xcvr.  */
	}

	/* Ugly but a reset can be slow, yet must be protected */
		
	spin_lock_irqsave(&ei_local->page_lock, flags);
		
	/* Try to restart the card.  Perhaps the user has fixed something. */
	ei_reset_8390(dev);
	AX88190_init(dev, 1);
		
	spin_unlock_irqrestore(&ei_local->page_lock, flags);
	netif_wake_queue(dev);
}
    

Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds15987.85%110.00%


Jun Komuro63.31%110.00%


Paulius Zaleckas42.21%110.00%


Eric Dumazet31.66%110.00%


Al Viro31.66%110.00%


Joe Perches21.10%110.00%


Richard Knutsson10.55%110.00%


David Hinds10.55%110.00%


David S. Miller10.55%110.00%


Matthew Whitehead10.55%110.00%


Total181100.00%10100.00%



/**
 * axnet_start_xmit - begin packet transmission
 * @skb: packet to be sent
 * @dev: network device to which packet is sent
 *
 * Sends a packet to an 8390 network device.
 */
 



static netdev_tx_t axnet_start_xmit(struct sk_buff *skb,
					  struct net_device *dev)
{
	long e8390_base = dev->base_addr;
	struct ei_device *ei_local = netdev_priv(dev);
	int length, send_length, output_page;
	unsigned long flags;
	u8 packet[ETH_ZLEN];
	
	netif_stop_queue(dev);

	length = skb->len;

	/* Mask interrupts from the ethercard. 
           SMP: We have to grab the lock here otherwise the IRQ handler
           on another CPU can flip window and race the IRQ mask set. We end
           up trashing the mcast filter not disabling irqs if we don't lock */
	   
	spin_lock_irqsave(&ei_local->page_lock, flags);
	outb_p(0x00, e8390_base + EN0_IMR);
	
	/*
         *      Slow phase with lock held.
         */
	 
	ei_local->irqlock = 1;

	send_length = max(length, ETH_ZLEN);

	/*
         * We have two Tx slots available for use. Find the first free
         * slot, and then perform some sanity checks. With two Tx bufs,
         * you get very close to transmitting back-to-back packets. With
         * only one Tx buf, the transmitter sits idle while you reload the
         * card, leaving a substantial gap between each transmitted packet.
         */

	if (ei_local->tx1 == 0) 
	{
		output_page = ei_local->tx_start_page;
		ei_local->tx1 = send_length;
		if ((netif_msg_tx_queued(ei_local)) &&
		    ei_local->tx2 > 0)
			netdev_dbg(dev,
				   "idle transmitter tx2=%d, lasttx=%d, txing=%d\n",
				   ei_local->tx2, ei_local->lasttx,
				   ei_local->txing);
	}
	else if (ei_local->tx2 == 0) 
	{
		output_page = ei_local->tx_start_page + TX_PAGES/2;
		ei_local->tx2 = send_length;
		if ((netif_msg_tx_queued(ei_local)) &&
		    ei_local->tx1 > 0)
			netdev_dbg(dev,
				   "idle transmitter, tx1=%d, lasttx=%d, txing=%d\n",
				   ei_local->tx1, ei_local->lasttx,
				   ei_local->txing);
	}
	else
	{	/* We should never get here. */
		netif_dbg(ei_local, tx_err, dev,
			  "No Tx buffers free! tx1=%d tx2=%d last=%d\n",
			  ei_local->tx1, ei_local->tx2,
			  ei_local->lasttx);
		ei_local->irqlock = 0;
		netif_stop_queue(dev);
		outb_p(ENISR_ALL, e8390_base + EN0_IMR);
		spin_unlock_irqrestore(&ei_local->page_lock, flags);
		dev->stats.tx_errors++;
		return NETDEV_TX_BUSY;
	}

	/*
         * Okay, now upload the packet and trigger a send if the transmitter
         * isn't already sending. If it is busy, the interrupt handler will
         * trigger the send later, upon receiving a Tx done interrupt.
         */

	if (length == skb->len)
		ei_block_output(dev, length, skb->data, output_page);
	else {
		memset(packet, 0, ETH_ZLEN);
		skb_copy_from_linear_data(skb, packet, skb->len);
		ei_block_output(dev, length, packet, output_page);
	}
	
	if (! ei_local->txing) 
	{
		ei_local->txing = 1;
		NS8390_trigger_send(dev, send_length, output_page);
		netif_trans_update(dev);
		if (output_page == ei_local->tx_start_page) 
		{
			ei_local->tx1 = -1;
			ei_local->lasttx = -1;
		}
		else 
		{
			ei_local->tx2 = -1;
			ei_local->lasttx = -2;
		}
	}
	else ei_local->txqueue++;

	if (ei_local->tx1  &&  ei_local->tx2)
		netif_stop_queue(dev);
	else
		netif_start_queue(dev);

	/* Turn 8390 interrupts back on. */
	ei_local->irqlock = 0;
	outb_p(ENISR_ALL, e8390_base + EN0_IMR);
	
	spin_unlock_irqrestore(&ei_local->page_lock, flags);

	dev_kfree_skb (skb);
	dev->stats.tx_bytes += send_length;
    
	return NETDEV_TX_OK;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds37378.20%15.88%


Alan Cox459.43%15.88%


Matthew Whitehead183.77%15.88%


Jun Komuro61.26%15.88%


Joe Perches61.26%15.88%


Paulius Zaleckas40.84%15.88%


David Hinds40.84%15.88%


Richard Knutsson40.84%15.88%


Florian Westphal30.63%15.88%


Al Viro30.63%15.88%


Andrew Morton30.63%15.88%


Arnaldo Carvalho de Melo30.63%15.88%


Patrick McHardy20.42%211.76%


Michael Hayes10.21%15.88%


David S. Miller10.21%15.88%


Stephen Hemminger10.21%15.88%


Total477100.00%17100.00%



/**
 * ax_interrupt - handle the interrupts from an 8390
 * @irq: interrupt number
 * @dev_id: a pointer to the net_device
 *
 * Handle the ether interface interrupts. We pull packets from
 * the 8390 via the card specific functions and fire them at the networking
 * stack. We also handle transmit completions and wake the transmit path if
 * necessary. We also update the counters and do other housekeeping as
 * needed.
 */




static irqreturn_t ax_interrupt(int irq, void *dev_id)
{
	struct net_device *dev = dev_id;
	long e8390_base;
	int interrupts, nr_serviced = 0, i;
	struct ei_device *ei_local;
    	int handled = 0;
	unsigned long flags;

	e8390_base = dev->base_addr;
	ei_local = netdev_priv(dev);

	/*
         *      Protect the irq test too.
         */
	 
	spin_lock_irqsave(&ei_local->page_lock, flags);

	if (ei_local->irqlock) {
#if 1 /* This might just be an interrupt for a PCI device sharing this line */
		const char *msg;
		/* The "irqlock" check is only for testing. */
		if (ei_local->irqlock)
			msg = "Interrupted while interrupts are masked!";
		else
			msg = "Reentering the interrupt handler!";
		netdev_info(dev, "%s, isr=%#2x imr=%#2x\n",
			    msg,
			    inb_p(e8390_base + EN0_ISR),
			    inb_p(e8390_base + EN0_IMR));
#endif
		spin_unlock_irqrestore(&ei_local->page_lock, flags);
		return IRQ_NONE;
	}

	netif_dbg(ei_local, intr, dev, "interrupt(isr=%#2.2x)\n",
		  inb_p(e8390_base + EN0_ISR));

	outb_p(0x00, e8390_base + EN0_ISR);
	ei_local->irqlock = 1;
   
	/* !!Assumption!! -- we stay in page 0.  Don't break this. */
	while ((interrupts = inb_p(e8390_base + EN0_ISR)) != 0 &&
	       ++nr_serviced < MAX_SERVICE)
	{
		if (!netif_running(dev) || (interrupts == 0xff)) {
			netif_warn(ei_local, intr, dev,
				   "interrupt from stopped card\n");
			outb_p(interrupts, e8390_base + EN0_ISR);
			interrupts = 0;
			break;
		}
		handled = 1;

		/* AX88190 bug fix. */
		outb_p(interrupts, e8390_base + EN0_ISR);
		for (i = 0; i < 10; i++) {
			if (!(inb(e8390_base + EN0_ISR) & interrupts))
				break;
			outb_p(0, e8390_base + EN0_ISR);
			outb_p(interrupts, e8390_base + EN0_ISR);
		}
		if (interrupts & ENISR_OVER) 
			ei_rx_overrun(dev);
		else if (interrupts & (ENISR_RX+ENISR_RX_ERR)) 
		{
			/* Got a good (?) packet. */
			ei_receive(dev);
		}
		/* Push the next to-transmit packet through. */
		if (interrupts & ENISR_TX)
			ei_tx_intr(dev);
		else if (interrupts & ENISR_TX_ERR)
			ei_tx_err(dev);

		if (interrupts & ENISR_COUNTERS) 
		{
			dev->stats.rx_frame_errors += inb_p(e8390_base + EN0_COUNTER0);
			dev->stats.rx_crc_errors   += inb_p(e8390_base + EN0_COUNTER1);
			dev->stats.rx_missed_errors+= inb_p(e8390_base + EN0_COUNTER2);
		}
	}
    
	if (interrupts && (netif_msg_intr(ei_local)))
	{
		handled = 1;
		if (nr_serviced >= MAX_SERVICE) 
		{
			/* 0xFF is valid for a card removal */
			if (interrupts != 0xFF)
				netdev_warn(dev,
					    "Too much work at interrupt, status %#2.2x\n",
					    interrupts);
			outb_p(ENISR_ALL, e8390_base + EN0_ISR); /* Ack. most intrs. */
		} else {
			netdev_warn(dev, "unknown interrupt %#2x\n",
				    interrupts);
			outb_p(0xff, e8390_base + EN0_ISR); /* Ack. all intrs. */
		}
	}

	/* Turn 8390 interrupts back on. */
	ei_local->irqlock = 0;
	outb_p(ENISR_ALL, e8390_base + EN0_IMR);

	spin_unlock_irqrestore(&ei_local->page_lock, flags);
	return IRQ_RETVAL(handled);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds41281.42%112.50%


Joe Perches336.52%112.50%


Jeff Garzik234.55%112.50%


Matthew Whitehead152.96%112.50%


Ken Kawasaki132.57%112.50%


Paulius Zaleckas61.19%112.50%


Al Viro30.59%112.50%


David Hinds10.20%112.50%


Total506100.00%8100.00%



/**
 * ei_tx_err - handle transmitter error
 * @dev: network device which threw the exception
 *
 * A transmitter error has happened. Most likely excess collisions (which
 * is a fairly normal condition). If the error is one where the Tx will
 * have been aborted, we try and send another one right away, instead of
 * letting the failed packet sit and collect dust in the Tx buffer. This
 * is a much better solution as it avoids kernel based Tx timeouts, and
 * an unnecessary card reset.
 *
 * Called with lock held.
 */




static void ei_tx_err(struct net_device *dev)
{
	long e8390_base = dev->base_addr;
	unsigned char txsr = inb_p(e8390_base+EN0_TSR);
	unsigned char tx_was_aborted = txsr & (ENTSR_ABT+ENTSR_FU);

#ifdef VERBOSE_ERROR_DUMP
	netdev_dbg(dev, "transmitter error (%#2x):", txsr);
	if (txsr & ENTSR_ABT)
		pr_cont(" excess-collisions");
	if (txsr & ENTSR_ND)
		pr_cont(" non-deferral");
	if (txsr & ENTSR_CRS)
		pr_cont(" lost-carrier");
	if (txsr & ENTSR_FU)
		pr_cont(" FIFO-underrun");
	if (txsr & ENTSR_CDH)
		pr_cont(" lost-heartbeat");
	pr_cont("\n");
#endif

	if (tx_was_aborted)
		ei_tx_intr(dev);
	else 
	{
		dev->stats.tx_errors++;
		if (txsr & ENTSR_CRS) dev->stats.tx_carrier_errors++;
		if (txsr & ENTSR_CDH) dev->stats.tx_heartbeat_errors++;
		if (txsr & ENTSR_OWC) dev->stats.tx_window_errors++;
	}
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds15187.28%125.00%


Joe Perches137.51%125.00%


Paulius Zaleckas84.62%125.00%


Matthew Whitehead10.58%125.00%


Total173100.00%4100.00%



/**
 * ei_tx_intr - transmit interrupt handler
 * @dev: network device for which tx intr is handled
 *
 * We have finished a transmit: check for errors and then trigger the next
 * packet to be sent. Called with lock held.
 */




static void ei_tx_intr(struct net_device *dev)
{
	long e8390_base = dev->base_addr;
	struct ei_device *ei_local = netdev_priv(dev);
	int status = inb(e8390_base + EN0_TSR);
    
	/*
         * There are two Tx buffers, see which one finished, and trigger
         * the send of another one if it exists.
         */
	ei_local->txqueue--;

	if (ei_local->tx1 < 0) 
	{
		if (ei_local->lasttx != 1 && ei_local->lasttx != -1)
			netdev_err(dev, "%s: bogus last_tx_buffer %d, tx1=%d\n",
				   ei_local->name, ei_local->lasttx,
				   ei_local->tx1);
		ei_local->tx1 = 0;
		if (ei_local->tx2 > 0) 
		{
			ei_local->txing = 1;
			NS8390_trigger_send(dev, ei_local->tx2, ei_local->tx_start_page + 6);
			netif_trans_update(dev);
			ei_local->tx2 = -1,
			ei_local->lasttx = 2;
		}
		else ei_local->lasttx = 20, ei_local->txing = 0;	
	}
	else if (ei_local->tx2 < 0) 
	{
		if (ei_local->lasttx != 2  &&  ei_local->lasttx != -2)
			netdev_err(dev, "%s: bogus last_tx_buffer %d, tx2=%d\n",
				   ei_local->name, ei_local->lasttx,
				   ei_local->tx2);
		ei_local->tx2 = 0;
		if (ei_local->tx1 > 0) 
		{
			ei_local->txing = 1;
			NS8390_trigger_send(dev, ei_local->tx1, ei_local->tx_start_page);
			netif_trans_update(dev);
			ei_local->tx1 = -1;
			ei_local->lasttx = 1;
		}
		else
			ei_local->lasttx = 10, ei_local->txing = 0;
	}
//      else
//              netdev_warn(dev, "unexpected TX-done interrupt, lasttx=%d\n",
//                          ei_local->lasttx);

	/* Minimize Tx latency: update the statistics after we restart TXing. */
	if (status & ENTSR_COL)
		dev->stats.collisions++;
	if (status & ENTSR_PTX)
		dev->stats.tx_packets++;
	else 
	{
		dev->stats.tx_errors++;
		if (status & ENTSR_ABT) 
		{
			dev->stats.tx_aborted_errors++;
			dev->stats.collisions += 16;
		}
		if (status & ENTSR_CRS) 
			dev->stats.tx_carrier_errors++;
		if (status & ENTSR_FU) 
			dev->stats.tx_fifo_errors++;
		if (status & ENTSR_CDH)
			dev->stats.tx_heartbeat_errors++;
		if (status & ENTSR_OWC)
			dev->stats.tx_window_errors++;
	}
	netif_wake_queue(dev);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds34990.18%116.67%


Paulius Zaleckas184.65%116.67%


Joe Perches102.58%116.67%


Florian Westphal61.55%116.67%


Al Viro30.78%116.67%


Matthew Whitehead10.26%116.67%


Total387100.00%6100.00%



/**
 * ei_receive - receive some packets
 * @dev: network device with which receive will be run
 *
 * We have a good packet(s), get it/them out of the buffers. 
 * Called with lock held.
 */




static void ei_receive(struct net_device *dev)
{
	long e8390_base = dev->base_addr;
	struct ei_device *ei_local = netdev_priv(dev);
	unsigned char rxing_page, this_frame, next_frame;
	unsigned short current_offset;
	int rx_pkt_count = 0;
	struct e8390_pkt_hdr rx_frame;
    
	while (++rx_pkt_count < 10) 
	{
		int pkt_len, pkt_stat;
		
		/* Get the rx page (incoming packet pointer). */
		rxing_page = inb_p(e8390_base + EN1_CURPAG -1);
		
		/* Remove one frame from the ring.  Boundary is always a page behind. */
		this_frame = inb_p(e8390_base + EN0_BOUNDARY) + 1;
		if (this_frame >= ei_local->stop_page)
			this_frame = ei_local->rx_start_page;
		
		/* Someday we'll omit the previous, iff we never get this message.
                   (There is at least one clone claimed to have a problem.)  
                   
                   Keep quiet if it looks like a card removal. One problem here
                   is that some clones crash in roughly the same way.
                 */
		if ((netif_msg_rx_err(ei_local)) &&
		    this_frame != ei_local->current_page &&
		    (this_frame != 0x0 || rxing_page != 0xFF))
			netdev_err(dev, "mismatched read page pointers %2x vs %2x\n",
				   this_frame, ei_local->current_page);
		
		if (this_frame == rxing_page)	/* Read all the frames? */
			break;				/* Done for now */
		
		current_offset = this_frame << 8;
		ei_get_8390_hdr(dev, &rx_frame, this_frame);
		
		pkt_len = rx_frame.count - sizeof(struct e8390_pkt_hdr);
		pkt_stat = rx_frame.status;
		
		next_frame = this_frame + 1 + ((pkt_len+4)>>8);
		
		if (pkt_len < 60  ||  pkt_len > 1518) 
		{
			netif_err(ei_local, rx_err, dev,
				  "bogus packet size: %d, status=%#2x nxpg=%#2x\n",
				  rx_frame.count, rx_frame.status,
				  rx_frame.next);
			dev->stats.rx_errors++;
			dev->stats.rx_length_errors++;
		}
		 else if ((pkt_stat & 0x0F) == ENRSR_RXOK) 
		{
			struct sk_buff *skb;
			
			skb = netdev_alloc_skb(dev, pkt_len + 2);
			if (skb == NULL) 
			{
				netif_err(ei_local, rx_err, dev,
					  "Couldn't allocate a sk_buff of size %d\n",
					  pkt_len);
				dev->stats.rx_dropped++;
				break;
			}
			else
			{
				skb_reserve(skb,2);	/* IP headers on 16 byte boundaries */
				skb_put(skb, pkt_len);	/* Make room */
				ei_block_input(dev, pkt_len, skb, current_offset + sizeof(rx_frame));
				skb->protocol=eth_type_trans(skb,dev);
				netif_rx(skb);
				dev->stats.rx_packets++;
				dev->stats.rx_bytes += pkt_len;
				if (pkt_stat & ENRSR_PHY)
					dev->stats.multicast++;
			}
		} 
		else 
		{
			netif_err(ei_local, rx_err, dev,
				  "bogus packet: status=%#2x nxpg=%#2x size=%d\n",
				  rx_frame.status, rx_frame.next,
				  rx_frame.count);
			dev->stats.rx_errors++;
			/* NB: The NIC counts CRC, frame and missed errors. */
			if (pkt_stat & ENRSR_FO)
				dev->stats.rx_fifo_errors++;
		}
		next_frame = rx_frame.next;
		
		/* This _should_ never happen: it's here for avoiding bad clones. */
		if (next_frame >= ei_local->stop_page) {
			netdev_info(dev, "next frame inconsistency, %#2x\n",
				    next_frame);
			next_frame = ei_local->rx_start_page;
		}
		ei_local->current_page = next_frame;
		outb_p(next_frame-1, e8390_base+EN0_BOUNDARY);
	}
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds42788.77%114.29%


Matthew Whitehead183.74%114.29%


Paulius Zaleckas153.12%114.29%


Joe Perches122.49%114.29%


Pradeep A. Dalvi30.62%114.29%


David Hinds30.62%114.29%


Al Viro30.62%114.29%


Total481100.00%7100.00%



/**
 * ei_rx_overrun - handle receiver overrun
 * @dev: network device which threw exception
 *
 * We have a receiver overrun: we have to kick the 8390 to get it started
 * again. Problem is that you have to kick it exactly as NS prescribes in
 * the updated datasheets, or "the NIC may act in an unpredictable manner."
 * This includes causing "the NIC to defer indefinitely when it is stopped
 * on a busy network."  Ugh.
 * Called with lock held. Don't call this with the interrupts off or your
 * computer will hate you - it takes 10ms or so. 
 */




static void ei_rx_overrun(struct net_device *dev)
{
	struct axnet_dev *info = PRIV(dev);
	long e8390_base = dev->base_addr;
	unsigned char was_txing, must_resend = 0;
	struct ei_device *ei_local = netdev_priv(dev);
    
	/*
         * Record whether a Tx was in progress and then issue the
         * stop command.
         */
	was_txing = inb_p(e8390_base+E8390_CMD) & E8390_TRANS;
	outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD);

	netif_dbg(ei_local, rx_err, dev, "Receiver overrun\n");
	dev->stats.rx_over_errors++;
    
	/* 
         * Wait a full Tx time (1.2ms) + some guard time, NS says 1.6ms total.
         * We wait at least 2ms.
         */

	mdelay(2);

	/*
         * Reset RBCR[01] back to zero as per magic incantation.
         */
	outb_p(0x00, e8390_base+EN0_RCNTLO);
	outb_p(0x00, e8390_base+EN0_RCNTHI);

	/*
         * See if any Tx was interrupted or not. According to NS, this
         * step is vital, and skipping it will cause no end of havoc.
         */

	if (was_txing)
	{ 
		unsigned char tx_completed = inb_p(e8390_base+EN0_ISR) & (ENISR_TX+ENISR_TX_ERR);
		if (!tx_completed)
			must_resend = 1;
	}

	/*
         * Have to enter loopback mode and then restart the NIC before
         * you are allowed to slurp packets up off the ring.
         */
	outb_p(E8390_TXOFF, e8390_base + EN0_TXCR);
	outb_p(E8390_NODMA + E8390_PAGE0 + E8390_START, e8390_base + E8390_CMD);

	/*
         * Clear the Rx ring of all the debris, and ack the interrupt.
         */
	ei_receive(dev);

	/*
         * Leave loopback mode, and resend any packet that got stopped.
         */
	outb_p(E8390_TXCONFIG | info->duplex_flag, e8390_base + EN0_TXCR); 
	if (must_resend)
    		outb_p(E8390_NODMA + E8390_PAGE0 + E8390_START + E8390_TRANS, e8390_base + E8390_CMD);
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds18488.04%114.29%


Matthew Whitehead146.70%114.29%


Jun Komuro31.44%114.29%


Ken Kawasaki20.96%114.29%


Paulius Zaleckas20.96%114.29%


Himangi Saraogi20.96%114.29%


Joe Perches20.96%114.29%


Total209100.00%7100.00%



/*
 *      Collect the stats. This is called unlocked and from several contexts.
 */
 



static struct net_device_stats *get_stats(struct net_device *dev)
{
	long ioaddr = dev->base_addr;
	struct ei_device *ei_local = netdev_priv(dev);
	unsigned long flags;
    
	/* If the card is stopped, just return the present stats. */
	if (!netif_running(dev))
		return &dev->stats;

	spin_lock_irqsave(&ei_local->page_lock,flags);
	/* Read the counter registers, assuming we are in page 0. */
	dev->stats.rx_frame_errors += inb_p(ioaddr + EN0_COUNTER0);
	dev->stats.rx_crc_errors   += inb_p(ioaddr + EN0_COUNTER1);
	dev->stats.rx_missed_errors+= inb_p(ioaddr + EN0_COUNTER2);
	spin_unlock_irqrestore(&ei_local->page_lock, flags);
    
	return &dev->stats;
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds10288.70%133.33%


Paulius Zaleckas108.70%133.33%


Al Viro32.61%133.33%


Total115100.00%3100.00%



/*
 * Form the 64 bit 8390 multicast table from the linked list of addresses
 * associated with this dev structure.
 */
 



static inline void make_mc_bits(u8 *bits, struct net_device *dev)
{
	struct netdev_hw_addr *ha;
	u32 crc;

	netdev_for_each_mc_addr(ha, dev) {
		crc = ether_crc(ETH_ALEN, ha->addr);
		/* 
                 * The 8390 uses the 6 most significant bits of the
                 * CRC to index the multicast table.
                 */
		bits[crc>>29] |= (1<<((crc>>26)&7));
	}
}


Contributors
PersonTokensPropCommitsCommitProp
Jun Komuro5584.62%133.33%


Jiri Pirko1015.38%266.67%


Total65100.00%3100.00%



/**
 * do_set_multicast_list - set/clear multicast filter
 * @dev: net device for which multicast filter is adjusted
 *
 *      Set or clear the multicast filter for this adaptor.
 *      Must be called with lock held. 
 */
 



static void do_set_multicast_list(struct net_device *dev)
{
	long e8390_base = dev->base_addr;
	int i;
	struct ei_device *ei_local = netdev_priv(dev);

	if (!(dev->flags&(IFF_PROMISC|IFF_ALLMULTI))) {
		memset(ei_local->mcfilter, 0, 8);
		if (!netdev_mc_empty(dev))
			make_mc_bits(ei_local->mcfilter, dev);
	} else {
		/* set to accept-all */
		memset(ei_local->mcfilter, 0xFF, 8);
	}

	outb_p(E8390_NODMA + E8390_PAGE1, e8390_base + E8390_CMD);
	for(i = 0; i < 8; i++) 
	{
		outb_p(ei_local->mcfilter[i], e8390_base + EN1_MULT_SHIFT(i));
	}
	outb_p(E8390_NODMA + E8390_PAGE0, e8390_base + E8390_CMD);

  	if(dev->flags&IFF_PROMISC)
  		outb_p(E8390_RXCONFIG | 0x58, e8390_base + EN0_RXCR);
	else if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev))
  		outb_p(E8390_RXCONFIG | 0x48, e8390_base + EN0_RXCR);
  	else
  		outb_p(E8390_RXCONFIG | 0x40, e8390_base + EN0_RXCR);

	outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base+E8390_CMD);
}


Contributors
PersonTokensPropCommitsCommitProp
Jun Komuro13663.26%240.00%


Linus Torvalds6731.16%120.00%


Jiri Pirko83.72%120.00%


David Hinds41.86%120.00%


Total215100.00%5100.00%



/*
 *      Called without lock held. This is invoked from user context and may
 *      be parallel to just about everything else. Its also fairly quick and
 *      not called too often. Must protect against both bh and irq users
 */




static void set_multicast_list(struct net_device *dev)
{
	unsigned long flags;

	spin_lock_irqsave(&dev_lock(dev), flags);
	do_set_multicast_list(dev);
	spin_unlock_irqrestore(&dev_lock(dev), flags);
}	


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds3685.71%150.00%


David Hinds614.29%150.00%


Total42100.00%2100.00%



/* This page of functions should be 8390 generic */
/* Follow National Semi's recommendations for initializing the "NIC". */

/**
 * AX88190_init - initialize 8390 hardware
 * @dev: network device to initialize
 * @startp: boolean.  non-zero value to initiate chip processing
 *
 *      Must be called with lock held.
 */




static void AX88190_init(struct net_device *dev, int startp)
{
	struct axnet_dev *info = PRIV(dev);
	long e8390_base = dev->base_addr;
	struct ei_device *ei_local = netdev_priv(dev);
	int i;
	int endcfg = ei_local->word16 ? (0x48 | ENDCFG_WTS) : 0x48;
    
	if(sizeof(struct e8390_pkt_hdr)!=4)
    		panic("8390.c: header struct mispacked\n");    
	/* Follow National Semi's recommendations for initing the DP83902. */
	outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); /* 0x21 */
	outb_p(endcfg, e8390_base + EN0_DCFG);	/* 0x48 or 0x49 */
	/* Clear the remote byte count registers. */
	outb_p(0x00,  e8390_base + EN0_RCNTLO);
	outb_p(0x00,  e8390_base + EN0_RCNTHI);
	/* Set to monitor and loopback mode -- this is vital!. */
	outb_p(E8390_RXOFF|0x40, e8390_base + EN0_RXCR); /* 0x60 */
	outb_p(E8390_TXOFF, e8390_base + EN0_TXCR); /* 0x02 */
	/* Set the transmit page and receive ring. */
	outb_p(ei_local->tx_start_page, e8390_base + EN0_TPSR);
	ei_local->tx1 = ei_local->tx2 = 0;
	outb_p(ei_local->rx_start_page, e8390_base + EN0_STARTPG);
	outb_p(ei_local->stop_page-1, e8390_base + EN0_BOUNDARY);	/* 3c503 says 0x3f,NS0x26*/
	ei_local->current_page = ei_local->rx_start_page;		/* assert boundary+1 */
	outb_p(ei_local->stop_page, e8390_base + EN0_STOPPG);
	/* Clear the pending interrupts and mask. */
	outb_p(0xFF, e8390_base + EN0_ISR);
	outb_p(0x00,  e8390_base + EN0_IMR);
    
	/* Copy the station address into the DS8390 registers. */

	outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP, e8390_base+E8390_CMD); /* 0x61 */
	for(i = 0; i < 6; i++) 
	{
		outb_p(dev->dev_addr[i], e8390_base + EN1_PHYS_SHIFT(i));
		if(inb_p(e8390_base + EN1_PHYS_SHIFT(i))!=dev->dev_addr[i])
			netdev_err(dev, "Hw. address read/write mismap %d\n", i);
	}

	outb_p(ei_local->rx_start_page, e8390_base + EN1_CURPAG);
	outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD);

	netif_start_queue(dev);
	ei_local->tx1 = ei_local->tx2 = 0;
	ei_local->txing = 0;

	if (info->flags & IS_AX88790)	/* select Internal PHY */
		outb(0x10, e8390_base + AXNET_GPIO);

	if (startp) 
	{
		outb_p(0xff,  e8390_base + EN0_ISR);
		outb_p(ENISR_ALL,  e8390_base + EN0_IMR);
		outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base+E8390_CMD);
		outb_p(E8390_TXCONFIG | info->duplex_flag,
		       e8390_base + EN0_TXCR); /* xmit on. */
		/* 3c503 TechMan says rxconfig only after the NIC is started. */
		outb_p(E8390_RXCONFIG | 0x40, e8390_base + EN0_RXCR); /* rx on, */
		do_set_multicast_list(dev);	/* (re)load the mcast table */
	}
}


Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds39991.72%116.67%


Ken Kawasaki184.14%116.67%


David Hinds71.61%116.67%


Al Viro61.38%116.67%


Joe Perches30.69%116.67%


Himangi Saraogi20.46%116.67%


Total435100.00%6100.00%



/* Trigger a transmit start, assuming the length is valid. 
   Always called with the page lock held */
   



static void NS8390_trigger_send(struct net_device *dev, unsigned int length,
								int start_page)
{
	long e8390_base = dev->base_addr;
 	struct ei_device *ei_local __attribute((unused)) = netdev_priv(dev);
    
	if (inb_p(e8390_base) & E8390_TRANS) 
	{
		netdev_warn(dev, "trigger_send() called with the transmitter busy\n");
		return;
	}
	outb_p(length & 0xff, e8390_base + EN0_TCNTLO);
	outb_p(length >> 8, e8390_base + EN0_TCNTHI);
	outb_p(start_page, e8390_base + EN0_TPSR);
	outb_p(E8390_NODMA+E8390_TRANS+E8390_START, e8390_base+E8390_CMD);
}

Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds9894.23%133.33%


Joe Perches32.88%133.33%


Al Viro32.88%133.33%


Total104100.00%3100.00%




Overall Contributors
PersonTokensPropCommitsCommitProp
Linus Torvalds532771.45%22.27%


Dominik Brodowski5967.99%2123.86%


Jun Komuro2543.41%89.09%


David Hinds2293.07%11.14%


Ken Kawasaki1401.88%66.82%


Stephen Hemminger1381.85%33.41%


Joe Perches1281.72%33.41%


Al Viro1171.57%11.14%


Matthew Whitehead951.27%11.14%


Paulius Zaleckas670.90%11.14%


Andrew Morton650.87%44.55%


Alan Cox460.62%22.27%


Jeff Garzik330.44%22.27%


Christoph Hellwig300.40%33.41%


Olof Johansson260.35%11.14%


Himangi Saraogi240.32%11.14%


Ben Hutchings220.30%11.14%


Jiri Pirko190.25%33.41%


Yoichi Yuasa170.23%11.14%


Jesse Allen110.15%11.14%


Cord Walter110.15%11.14%


Arnaldo Carvalho de Melo100.13%22.27%


Florian Westphal90.12%11.14%


Vaishali Thakkar80.11%11.14%


Richard Knutsson60.08%22.27%


Russell King50.07%11.14%


David S. Miller40.05%11.14%


Pradeep A. Dalvi30.04%11.14%


Eric Dumazet30.04%11.14%


Patrick McHardy20.03%22.27%


Lucas De Marchi20.03%11.14%


H Hartley Sweeten20.03%11.14%


Thomas Gleixner10.01%11.14%


Qinghuang Feng10.01%11.14%


Michael Hayes10.01%11.14%


Jeff Kirsher10.01%11.14%


Adrian Bunk10.01%11.14%


Paul Gortmaker10.01%11.14%


Cheng Renquan10.01%11.14%


Total7456100.00%88100.00%


Directory: drivers/net/ethernet/8390



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