Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 3303 insertions, 0 deletions

diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
new file mode 100644
index 00000000000..15e71028349
--- /dev/null
+++ b/drivers/net/via-velocity.c
@@ -0,0 +1,3303 @@
+/*
+ * This code is derived from the VIA reference driver (copyright message
+ * below) provided to Red Hat by VIA Networking Technologies, Inc. for
+ * addition to the Linux kernel.
+ *
+ * The code has been merged into one source file, cleaned up to follow
+ * Linux coding style,  ported to the Linux 2.6 kernel tree and cleaned
+ * for 64bit hardware platforms.
+ *
+ * TODO
+ *	Big-endian support
+ *	rx_copybreak/alignment
+ *	Scatter gather
+ *	More testing
+ *
+ * The changes are (c) Copyright 2004, Red Hat Inc. <alan@redhat.com>
+ * Additional fixes and clean up: Francois Romieu
+ *
+ * This source has not been verified for use in safety critical systems.
+ *
+ * Please direct queries about the revamped driver to the linux-kernel
+ * list not VIA.
+ *
+ * Original code:
+ *
+ * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
+ * All rights reserved.
+ *
+ * This software may be redistributed and/or modified under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or
+ * 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.
+ *
+ * Author: Chuang Liang-Shing, AJ Jiang
+ *
+ * Date: Jan 24, 2003
+ *
+ * MODULE_LICENSE("GPL");
+ *
+ */
+
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/version.h>
+#include <linux/string.h>
+#include <linux/wait.h>
+#include <asm/io.h>
+#include <linux/if.h>
+#include <linux/config.h>
+#include <asm/uaccess.h>
+#include <linux/proc_fs.h>
+#include <linux/inetdevice.h>
+#include <linux/reboot.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/in.h>
+#include <linux/if_arp.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/crc-ccitt.h>
+#include <linux/crc32.h>
+
+#include "via-velocity.h"
+
+
+static int velocity_nics = 0;
+static int msglevel = MSG_LEVEL_INFO;
+
+
+static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
+static struct ethtool_ops velocity_ethtool_ops;
+
+/*
+    Define module options
+*/
+
+MODULE_AUTHOR("VIA Networking Technologies, Inc.");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
+
+#define VELOCITY_PARAM(N,D) \
+        static int N[MAX_UNITS]=OPTION_DEFAULT;\
+	module_param_array(N, int, NULL, 0); \
+        MODULE_PARM_DESC(N, D);
+
+#define RX_DESC_MIN     64
+#define RX_DESC_MAX     255
+#define RX_DESC_DEF     64
+VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
+
+#define TX_DESC_MIN     16
+#define TX_DESC_MAX     256
+#define TX_DESC_DEF     64
+VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
+
+#define VLAN_ID_MIN     0
+#define VLAN_ID_MAX     4095
+#define VLAN_ID_DEF     0
+/* VID_setting[] is used for setting the VID of NIC.
+   0: default VID.
+   1-4094: other VIDs.
+*/
+VELOCITY_PARAM(VID_setting, "802.1Q VLAN ID");
+
+#define RX_THRESH_MIN   0
+#define RX_THRESH_MAX   3
+#define RX_THRESH_DEF   0
+/* rx_thresh[] is used for controlling the receive fifo threshold.
+   0: indicate the rxfifo threshold is 128 bytes.
+   1: indicate the rxfifo threshold is 512 bytes.
+   2: indicate the rxfifo threshold is 1024 bytes.
+   3: indicate the rxfifo threshold is store & forward.
+*/
+VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
+
+#define DMA_LENGTH_MIN  0
+#define DMA_LENGTH_MAX  7
+#define DMA_LENGTH_DEF  0
+
+/* DMA_length[] is used for controlling the DMA length
+   0: 8 DWORDs
+   1: 16 DWORDs
+   2: 32 DWORDs
+   3: 64 DWORDs
+   4: 128 DWORDs
+   5: 256 DWORDs
+   6: SF(flush till emply)
+   7: SF(flush till emply)
+*/
+VELOCITY_PARAM(DMA_length, "DMA length");
+
+#define TAGGING_DEF     0
+/* enable_tagging[] is used for enabling 802.1Q VID tagging.
+   0: disable VID seeting(default).
+   1: enable VID setting.
+*/
+VELOCITY_PARAM(enable_tagging, "Enable 802.1Q tagging");
+
+#define IP_ALIG_DEF     0
+/* IP_byte_align[] is used for IP header DWORD byte aligned
+   0: indicate the IP header won't be DWORD byte aligned.(Default) .
+   1: indicate the IP header will be DWORD byte aligned.
+      In some enviroment, the IP header should be DWORD byte aligned,
+      or the packet will be droped when we receive it. (eg: IPVS)
+*/
+VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
+
+#define TX_CSUM_DEF     1
+/* txcsum_offload[] is used for setting the checksum offload ability of NIC.
+   (We only support RX checksum offload now)
+   0: disable csum_offload[checksum offload
+   1: enable checksum offload. (Default)
+*/
+VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
+
+#define FLOW_CNTL_DEF   1
+#define FLOW_CNTL_MIN   1
+#define FLOW_CNTL_MAX   5
+
+/* flow_control[] is used for setting the flow control ability of NIC.
+   1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
+   2: enable TX flow control.
+   3: enable RX flow control.
+   4: enable RX/TX flow control.
+   5: disable
+*/
+VELOCITY_PARAM(flow_control, "Enable flow control ability");
+
+#define MED_LNK_DEF 0
+#define MED_LNK_MIN 0
+#define MED_LNK_MAX 4
+/* speed_duplex[] is used for setting the speed and duplex mode of NIC.
+   0: indicate autonegotiation for both speed and duplex mode
+   1: indicate 100Mbps half duplex mode
+   2: indicate 100Mbps full duplex mode
+   3: indicate 10Mbps half duplex mode
+   4: indicate 10Mbps full duplex mode
+
+   Note:
+        if EEPROM have been set to the force mode, this option is ignored
+            by driver.
+*/
+VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
+
+#define VAL_PKT_LEN_DEF     0
+/* ValPktLen[] is used for setting the checksum offload ability of NIC.
+   0: Receive frame with invalid layer 2 length (Default)
+   1: Drop frame with invalid layer 2 length
+*/
+VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
+
+#define WOL_OPT_DEF     0
+#define WOL_OPT_MIN     0
+#define WOL_OPT_MAX     7
+/* wol_opts[] is used for controlling wake on lan behavior.
+   0: Wake up if recevied a magic packet. (Default)
+   1: Wake up if link status is on/off.
+   2: Wake up if recevied an arp packet.
+   4: Wake up if recevied any unicast packet.
+   Those value can be sumed up to support more than one option.
+*/
+VELOCITY_PARAM(wol_opts, "Wake On Lan options");
+
+#define INT_WORKS_DEF   20
+#define INT_WORKS_MIN   10
+#define INT_WORKS_MAX   64
+
+VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
+
+static int rx_copybreak = 200;
+module_param(rx_copybreak, int, 0644);
+MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
+
+static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info);
+static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
+static void velocity_print_info(struct velocity_info *vptr);
+static int velocity_open(struct net_device *dev);
+static int velocity_change_mtu(struct net_device *dev, int mtu);
+static int velocity_xmit(struct sk_buff *skb, struct net_device *dev);
+static int velocity_intr(int irq, void *dev_instance, struct pt_regs *regs);
+static void velocity_set_multi(struct net_device *dev);
+static struct net_device_stats *velocity_get_stats(struct net_device *dev);
+static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+static int velocity_close(struct net_device *dev);
+static int velocity_receive_frame(struct velocity_info *, int idx);
+static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
+static void velocity_free_rd_ring(struct velocity_info *vptr);
+static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
+static int velocity_soft_reset(struct velocity_info *vptr);
+static void mii_init(struct velocity_info *vptr, u32 mii_status);
+static u32 velocity_get_opt_media_mode(struct velocity_info *vptr);
+static void velocity_print_link_status(struct velocity_info *vptr);
+static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs);
+static void velocity_shutdown(struct velocity_info *vptr);
+static void enable_flow_control_ability(struct velocity_info *vptr);
+static void enable_mii_autopoll(struct mac_regs __iomem * regs);
+static int velocity_mii_read(struct mac_regs __iomem *, u8 byIdx, u16 * pdata);
+static int velocity_mii_write(struct mac_regs __iomem *, u8 byMiiAddr, u16 data);
+static u32 mii_check_media_mode(struct mac_regs __iomem * regs);
+static u32 check_connection_type(struct mac_regs __iomem * regs);
+static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status);
+
+#ifdef CONFIG_PM
+
+static int velocity_suspend(struct pci_dev *pdev, pm_message_t state);
+static int velocity_resume(struct pci_dev *pdev);
+
+static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr);
+
+static struct notifier_block velocity_inetaddr_notifier = {
+      .notifier_call	= velocity_netdev_event,
+};
+
+static DEFINE_SPINLOCK(velocity_dev_list_lock);
+static LIST_HEAD(velocity_dev_list);
+
+static void velocity_register_notifier(void)
+{
+	register_inetaddr_notifier(&velocity_inetaddr_notifier);
+}
+
+static void velocity_unregister_notifier(void)
+{
+	unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
+}
+
+#else				/* CONFIG_PM */
+
+#define velocity_register_notifier()	do {} while (0)
+#define velocity_unregister_notifier()	do {} while (0)
+
+#endif				/* !CONFIG_PM */
+
+/*
+ *	Internal board variants. At the moment we have only one
+ */
+
+static struct velocity_info_tbl chip_info_table[] = {
+	{CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 256, 1, 0x00FFFFFFUL},
+	{0, NULL}
+};
+
+/*
+ *	Describe the PCI device identifiers that we support in this
+ *	device driver. Used for hotplug autoloading.
+ */
+
+static struct pci_device_id velocity_id_table[] __devinitdata = {
+	{PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) chip_info_table},
+	{0, }
+};
+
+MODULE_DEVICE_TABLE(pci, velocity_id_table);
+
+/**
+ *	get_chip_name	- 	identifier to name
+ *	@id: chip identifier
+ *
+ *	Given a chip identifier return a suitable description. Returns
+ *	a pointer a static string valid while the driver is loaded.
+ */
+
+static char __devinit *get_chip_name(enum chip_type chip_id)
+{
+	int i;
+	for (i = 0; chip_info_table[i].name != NULL; i++)
+		if (chip_info_table[i].chip_id == chip_id)
+			break;
+	return chip_info_table[i].name;
+}
+
+/**
+ *	velocity_remove1	-	device unplug
+ *	@pdev: PCI device being removed
+ *
+ *	Device unload callback. Called on an unplug or on module
+ *	unload for each active device that is present. Disconnects
+ *	the device from the network layer and frees all the resources
+ */
+
+static void __devexit velocity_remove1(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct velocity_info *vptr = dev->priv;
+
+#ifdef CONFIG_PM
+	unsigned long flags;
+
+	spin_lock_irqsave(&velocity_dev_list_lock, flags);
+	if (!list_empty(&velocity_dev_list))
+		list_del(&vptr->list);
+	spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
+#endif
+	unregister_netdev(dev);
+	iounmap(vptr->mac_regs);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+	free_netdev(dev);
+
+	velocity_nics--;
+}
+
+/**
+ *	velocity_set_int_opt	-	parser for integer options
+ *	@opt: pointer to option value
+ *	@val: value the user requested (or -1 for default)
+ *	@min: lowest value allowed
+ *	@max: highest value allowed
+ *	@def: default value
+ *	@name: property name
+ *	@dev: device name
+ *
+ *	Set an integer property in the module options. This function does
+ *	all the verification and checking as well as reporting so that
+ *	we don't duplicate code for each option.
+ */
+
+static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname)
+{
+	if (val == -1)
+		*opt = def;
+	else if (val < min || val > max) {
+		VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
+					devname, name, min, max);
+		*opt = def;
+	} else {
+		VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
+					devname, name, val);
+		*opt = val;
+	}
+}
+
+/**
+ *	velocity_set_bool_opt	-	parser for boolean options
+ *	@opt: pointer to option value
+ *	@val: value the user requested (or -1 for default)
+ *	@def: default value (yes/no)
+ *	@flag: numeric value to set for true.
+ *	@name: property name
+ *	@dev: device name
+ *
+ *	Set a boolean property in the module options. This function does
+ *	all the verification and checking as well as reporting so that
+ *	we don't duplicate code for each option.
+ */
+
+static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname)
+{
+	(*opt) &= (~flag);
+	if (val == -1)
+		*opt |= (def ? flag : 0);
+	else if (val < 0 || val > 1) {
+		printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n", 
+			devname, name);
+		*opt |= (def ? flag : 0);
+	} else {
+		printk(KERN_INFO "%s: set parameter %s to %s\n", 
+			devname, name, val ? "TRUE" : "FALSE");
+		*opt |= (val ? flag : 0);
+	}
+}
+
+/**
+ *	velocity_get_options	-	set options on device
+ *	@opts: option structure for the device
+ *	@index: index of option to use in module options array
+ *	@devname: device name
+ *
+ *	Turn the module and command options into a single structure
+ *	for the current device
+ */
+
+static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
+{
+
+	velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
+	velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
+	velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
+	velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
+	velocity_set_int_opt(&opts->vid, VID_setting[index], VLAN_ID_MIN, VLAN_ID_MAX, VLAN_ID_DEF, "VID_setting", devname);
+	velocity_set_bool_opt(&opts->flags, enable_tagging[index], TAGGING_DEF, VELOCITY_FLAGS_TAGGING, "enable_tagging", devname);
+	velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
+	velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
+	velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
+	velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
+	velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
+	velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname);
+	velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
+	opts->numrx = (opts->numrx & ~3);
+}
+
+/**
+ *	velocity_init_cam_filter	-	initialise CAM
+ *	@vptr: velocity to program
+ *
+ *	Initialize the content addressable memory used for filters. Load
+ *	appropriately according to the presence of VLAN
+ */
+
+static void velocity_init_cam_filter(struct velocity_info *vptr)
+{
+	struct mac_regs __iomem * regs = vptr->mac_regs;
+
+	/* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
+	WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, &regs->MCFG);
+	WORD_REG_BITS_ON(MCFG_VIDFR, &regs->MCFG);
+
+	/* Disable all CAMs */
+	memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
+	memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
+	mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
+	mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
+
+	/* Enable first VCAM */
+	if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
+		/* If Tagging option is enabled and VLAN ID is not zero, then
+		   turn on MCFG_RTGOPT also */
+		if (vptr->options.vid != 0)
+			WORD_REG_BITS_ON(MCFG_RTGOPT, &regs->MCFG);
+
+		mac_set_cam(regs, 0, (u8 *) & (vptr->options.vid), VELOCITY_VLAN_ID_CAM);
+		vptr->vCAMmask[0] |= 1;
+		mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
+	} else {
+		u16 temp = 0;
+		mac_set_cam(regs, 0, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
+		temp = 1;
+		mac_set_cam_mask(regs, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
+	}
+}
+
+/**
+ *	velocity_rx_reset	-	handle a receive reset
+ *	@vptr: velocity we are resetting
+ *
+ *	Reset the ownership and status for the receive ring side.
+ *	Hand all the receive queue to the NIC.
+ */
+
+static void velocity_rx_reset(struct velocity_info *vptr)
+{
+
+	struct mac_regs __iomem * regs = vptr->mac_regs;
+	int i;
+
+	vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0;
+
+	/*
+	 *	Init state, all RD entries belong to the NIC
+	 */
+	for (i = 0; i < vptr->options.numrx; ++i)
+		vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC;
+
+	writew(vptr->options.numrx, &regs->RBRDU);
+	writel(vptr->rd_pool_dma, &regs->RDBaseLo);
+	writew(0, &regs->RDIdx);
+	writew(vptr->options.numrx - 1, &regs->RDCSize);
+}
+
+/**
+ *	velocity_init_registers	-	initialise MAC registers
+ *	@vptr: velocity to init
+ *	@type: type of initialisation (hot or cold)
+ *
+ *	Initialise the MAC on a reset or on first set up on the
+ *	hardware.
+ */
+
+static void velocity_init_registers(struct velocity_info *vptr, 
+				    enum velocity_init_type type)
+{
+	struct mac_regs __iomem * regs = vptr->mac_regs;
+	int i, mii_status;
+
+	mac_wol_reset(regs);
+
+	switch (type) {
+	case VELOCITY_INIT_RESET:
+	case VELOCITY_INIT_WOL:
+
+		netif_stop_queue(vptr->dev);
+
+		/*
+		 *	Reset RX to prevent RX pointer not on the 4X location
+		 */
+		velocity_rx_reset(vptr);
+		mac_rx_queue_run(regs);
+		mac_rx_queue_wake(regs);
+
+		mii_status = velocity_get_opt_media_mode(vptr);
+		if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
+			velocity_print_link_status(vptr);
+			if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
+				netif_wake_queue(vptr->dev);
+		}
+
+		enable_flow_control_ability(vptr);
+
+		mac_clear_isr(regs);
+		writel(CR0_STOP, &regs->CR0Clr);
+		writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), 
+							&regs->CR0Set);
+
+		break;
+
+	case VELOCITY_INIT_COLD:
+	default:
+		/*
+		 *	Do reset
+		 */
+		velocity_soft_reset(vptr);
+		mdelay(5);
+
+		mac_eeprom_reload(regs);
+		for (i = 0; i < 6; i++) {
+			writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
+		}
+		/*
+		 *	clear Pre_ACPI bit.
+		 */
+		BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
+		mac_set_rx_thresh(regs, vptr->options.rx_thresh);
+		mac_set_dma_length(regs, vptr->options.DMA_length);
+
+		writeb(WOLCFG_SAM | WOLCFG_SAB, &regs->WOLCFGSet);
+		/*
+		 *	Back off algorithm use original IEEE standard
+		 */
+		BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), &regs->CFGB);
+
+		/*
+		 *	Init CAM filter
+		 */
+		velocity_init_cam_filter(vptr);
+
+		/*
+		 *	Set packet filter: Receive directed and broadcast address
+		 */
+		velocity_set_multi(vptr->dev);
+
+		/*
+		 *	Enable MII auto-polling
+		 */
+		enable_mii_autopoll(regs);
+
+		vptr->int_mask = INT_MASK_DEF;
+
+		writel(cpu_to_le32(vptr->rd_pool_dma), &regs->RDBaseLo);
+		writew(vptr->options.numrx - 1, &regs->RDCSize);
+		mac_rx_queue_run(regs);
+		mac_rx_queue_wake(regs);
+
+		writew(vptr->options.numtx - 1, &regs->TDCSize);
+
+		for (i = 0; i < vptr->num_txq; i++) {
+			writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i]));
+			mac_tx_queue_run(regs, i);
+		}
+
+		init_flow_control_register(vptr);
+
+		writel(CR0_STOP, &regs->CR0Clr);
+		writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), &regs->CR0Set);
+
+		mii_status = velocity_get_opt_media_mode(vptr);
+		netif_stop_queue(vptr->dev);
+
+		mii_init(vptr, mii_status);
+
+		if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
+			velocity_print_link_status(vptr);
+			if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
+				netif_wake_queue(vptr->dev);
+		}
+
+		enable_flow_control_ability(vptr);
+		mac_hw_mibs_init(regs);
+		mac_write_int_mask(vptr->int_mask, regs);
+		mac_clear_isr(regs);
+
+	}
+}
+
+/**
+ *	velocity_soft_reset	-	soft reset
+ *	@vptr: velocity to reset
+ *
+ *	Kick off a soft reset of the velocity adapter and then poll
+ *	until the reset sequence has completed before returning.
+ */
+
+static int velocity_soft_reset(struct velocity_info *vptr)
+{
+	struct mac_regs __iomem * regs = vptr->mac_regs;
+	int i = 0;
+
+	writel(CR0_SFRST, &regs->CR0Set);
+
+	for (i = 0; i < W_MAX_TIMEOUT; i++) {
+		udelay(5);
+		if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, &regs->CR0Set))
+			break;
+	}
+
+	if (i == W_MAX_TIMEOUT) {
+		writel(CR0_FORSRST, &regs->CR0Set);
+		/* FIXME: PCI POSTING */
+		/* delay 2ms */
+		mdelay(2);
+	}
+	return 0;
+}
+
+/**
+ *	velocity_found1		-	set up discovered velocity card
+ *	@pdev: PCI device
+ *	@ent: PCI device table entry that matched
+ *
+ *	Configure a discovered adapter from scratch. Return a negative
+ *	errno error code on failure paths.
+ */
+
+static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	static int first = 1;
+	struct net_device *dev;
+	int i;
+	struct velocity_info_tbl *info = (struct velocity_info_tbl *) ent->driver_data;
+	struct velocity_info *vptr;
+	struct mac_regs __iomem * regs;
+	int ret = -ENOMEM;
+
+	if (velocity_nics >= MAX_UNITS) {
+		printk(KERN_NOTICE VELOCITY_NAME ": already found %d NICs.\n", 
+				velocity_nics);
+		return -ENODEV;
+	}
+
+	dev = alloc_etherdev(sizeof(struct velocity_info));
+
+	if (dev == NULL) {
+		printk(KERN_ERR VELOCITY_NAME ": allocate net device failed.\n");
+		goto out;
+	}
+	
+	/* Chain it all together */
+	
+	SET_MODULE_OWNER(dev);
+	SET_NETDEV_DEV(dev, &pdev->dev);
+	vptr = dev->priv;
+
+
+	if (first) {
+		printk(KERN_INFO "%s Ver. %s\n", 
+			VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
+		printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
+		printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
+		first = 0;
+	}
+
+	velocity_init_info(pdev, vptr, info);
+
+	vptr->dev = dev;
+
+	dev->irq = pdev->irq;
+
+	ret = pci_enable_device(pdev);
+	if (ret < 0) 
+		goto err_free_dev;
+
+	ret = velocity_get_pci_info(vptr, pdev);
+	if (ret < 0) {
+		printk(KERN_ERR VELOCITY_NAME ": Failed to find PCI device.\n");
+		goto err_disable;
+	}
+
+	ret = pci_request_regions(pdev, VELOCITY_NAME);
+	if (ret < 0) {
+		printk(KERN_ERR VELOCITY_NAME ": Failed to find PCI device.\n");
+		goto err_disable;
+	}
+
+	regs = ioremap(vptr->memaddr, vptr->io_size);
+	if (regs == NULL) {
+		ret = -EIO;
+		goto err_release_res;
+	}
+
+	vptr->mac_regs = regs;
+
+	mac_wol_reset(regs);
+
+	dev->base_addr = vptr->ioaddr;
+
+	for (i = 0; i < 6; i++)
+		dev->dev_addr[i] = readb(&regs->PAR[i]);
+
+
+	velocity_get_options(&vptr->options, velocity_nics, dev->name);
+
+	/* 
+	 *	Mask out the options cannot be set to the chip
+	 */
+	 
+	vptr->options.flags &= info->flags;
+
+	/*
+	 *	Enable the chip specified capbilities
+	 */
+	 
+	vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
+
+	vptr->wol_opts = vptr->options.wol_opts;
+	vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
+
+	vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
+
+	dev->irq = pdev->irq;
+	dev->open = velocity_open;
+	dev->hard_start_xmit = velocity_xmit;
+	dev->stop = velocity_close;
+	dev->get_stats = velocity_get_stats;
+	dev->set_multicast_list = velocity_set_multi;
+	dev->do_ioctl = velocity_ioctl;
+	dev->ethtool_ops = &velocity_ethtool_ops;
+	dev->change_mtu = velocity_change_mtu;
+#ifdef  VELOCITY_ZERO_COPY_SUPPORT
+	dev->features |= NETIF_F_SG;
+#endif
+
+	if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) {
+		dev->features |= NETIF_F_HW_CSUM;
+	}
+
+	ret = register_netdev(dev);
+	if (ret < 0)
+		goto err_iounmap;
+
+	velocity_print_info(vptr);
+	pci_set_drvdata(pdev, dev);
+	
+	/* and leave the chip powered down */
+	
+	pci_set_power_state(pdev, PCI_D3hot);
+#ifdef CONFIG_PM
+	{
+		unsigned long flags;
+
+		spin_lock_irqsave(&velocity_dev_list_lock, flags);
+		list_add(&vptr->list, &velocity_dev_list);
+		spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
+	}
+#endif
+	velocity_nics++;
+out:
+	return ret;
+
+err_iounmap:
+	iounmap(regs);
+err_release_res:
+	pci_release_regions(pdev);
+err_disable:
+	pci_disable_device(pdev);
+err_free_dev:
+	free_netdev(dev);
+	goto out;
+}
+
+/**
+ *	velocity_print_info	-	per driver data
+ *	@vptr: velocity
+ *
+ *	Print per driver data as the kernel driver finds Velocity
+ *	hardware
+ */
+
+static void __devinit velocity_print_info(struct velocity_info *vptr)
+{
+	struct net_device *dev = vptr->dev;
+
+	printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
+	printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", 
+		dev->name, 
+		dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], 
+		dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
+}
+
+/**
+ *	velocity_init_info	-	init private data
+ *	@pdev: PCI device
+ *	@vptr: Velocity info
+ *	@info: Board type
+ *
+ *	Set up the initial velocity_info struct for the device that has been
+ *	discovered.
+ */
+
+static void __devinit velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info)
+{
+	memset(vptr, 0, sizeof(struct velocity_info));
+
+	vptr->pdev = pdev;
+	vptr->chip_id = info->chip_id;
+	vptr->io_size = info->io_size;
+	vptr->num_txq = info->txqueue;
+	vptr->multicast_limit = MCAM_SIZE;
+	spin_lock_init(&vptr->lock);
+	INIT_LIST_HEAD(&vptr->list);
+}
+
+/**
+ *	velocity_get_pci_info	-	retrieve PCI info for device
+ *	@vptr: velocity device
+ *	@pdev: PCI device it matches
+ *
+ *	Retrieve the PCI configuration space data that interests us from
+ *	the kernel PCI layer
+ */
+
+static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
+{
+
+	if(pci_read_config_byte(pdev, PCI_REVISION_ID, &vptr->rev_id) < 0)
+		return -EIO;
+		
+	pci_set_master(pdev);
+
+	vptr->ioaddr = pci_resource_start(pdev, 0);
+	vptr->memaddr = pci_resource_start(pdev, 1);
+	
+	if(!(pci_resource_flags(pdev, 0) & IORESOURCE_IO))
+	{
+		printk(KERN_ERR "%s: region #0 is not an I/O resource, aborting.\n",
+				pci_name(pdev));
+		return -EINVAL;
+	}
+
+	if((pci_resource_flags(pdev, 1) & IORESOURCE_IO))
+	{
+		printk(KERN_ERR "%s: region #1 is an I/O resource, aborting.\n",
+				pci_name(pdev));
+		return -EINVAL;
+	}
+
+	if(pci_resource_len(pdev, 1) < 256)
+	{
+		printk(KERN_ERR "%s: region #1 is too small.\n", 
+				pci_name(pdev));
+		return -EINVAL;
+	}
+	vptr->pdev = pdev;
+
+	return 0;
+}
+
+/**
+ *	velocity_init_rings	-	set up DMA rings
+ *	@vptr: Velocity to set up
+ *
+ *	Allocate PCI mapped DMA rings for the receive and transmit layer
+ *	to use.
+ */
+
+static int velocity_init_rings(struct velocity_info *vptr)
+{
+	int i;
+	unsigned int psize;
+	unsigned int tsize;
+	dma_addr_t pool_dma;
+	u8 *pool;
+
+	/*
+	 *	Allocate all RD/TD rings a single pool 
+	 */
+	 
+	psize = vptr->options.numrx * sizeof(struct rx_desc) + 
+		vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
+
+	/*
+	 * pci_alloc_consistent() fulfills the requirement for 64 bytes
+	 * alignment
+	 */
+	pool = pci_alloc_consistent(vptr->pdev, psize, &pool_dma);
+
+	if (pool == NULL) {
+		printk(KERN_ERR "%s : DMA memory allocation failed.\n", 
+					vptr->dev->name);
+		return -ENOMEM;
+	}
+
+	memset(pool, 0, psize);
+
+	vptr->rd_ring = (struct rx_desc *) pool;
+
+	vptr->rd_pool_dma = pool_dma;
+
+	tsize = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
+	vptr->tx_bufs = pci_alloc_consistent(vptr->pdev, tsize, 
+						&vptr->tx_bufs_dma);
+
+	if (vptr->tx_bufs == NULL) {
+		printk(KERN_ERR "%s: DMA memory allocation failed.\n", 
+					vptr->dev->name);
+		pci_free_consistent(vptr->pdev, psize, pool, pool_dma);
+		return -ENOMEM;
+	}
+
+	memset(vptr->tx_bufs, 0, vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq);
+
+	i = vptr->options.numrx * sizeof(struct rx_desc);
+	pool += i;
+	pool_dma += i;
+	for (i = 0; i < vptr->num_txq; i++) {
+		int offset = vptr->options.numtx * sizeof(struct tx_desc);
+
+		vptr->td_pool_dma[i] = pool_dma;
+		vptr->td_rings[i] = (struct tx_desc *) pool;
+		pool += offset;
+		pool_dma += offset;
+	}
+	return 0;
+}
+
+/**
+ *	velocity_free_rings	-	free PCI ring pointers
+ *	@vptr: Velocity to free from
+ *
+ *	Clean up the PCI ring buffers allocated to this velocity.
+ */
+
+static void velocity_free_rings(struct velocity_info *vptr)
+{
+	int size;
+
+	size = vptr->options.numrx * sizeof(struct rx_desc) + 
+	       vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
+
+	pci_free_consistent(vptr->pdev, size, vptr->rd_ring, vptr->rd_pool_dma);
+
+	size = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
+
+	pci_free_consistent(vptr->pdev, size, vptr->tx_bufs, vptr->tx_bufs_dma);
+}
+
+static inline void velocity_give_many_rx_descs(struct velocity_info *vptr)
+{
+	struct mac_regs __iomem *regs = vptr->mac_regs;
+	int avail, dirty, unusable;
+
+	/*
+	 * RD number must be equal to 4X per hardware spec
+	 * (programming guide rev 1.20, p.13)
+	 */
+	if (vptr->rd_filled < 4)
+		return;
+
+	wmb();
+
+	unusable = vptr->rd_filled & 0x0003;
+	dirty = vptr->rd_dirty - unusable;
+	for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
+		dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
+		vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC;
+	}
+
+	writew(vptr->rd_filled & 0xfffc, &regs->RBRDU);
+	vptr->rd_filled = unusable;
+}
+
+static int velocity_rx_refill(struct velocity_info *vptr)
+{
+	int dirty = vptr->rd_dirty, done = 0, ret = 0;
+
+	do {
+		struct rx_desc *rd = vptr->rd_ring + dirty;
+
+		/* Fine for an all zero Rx desc at init time as well */
+		if (rd->rdesc0.owner == OWNED_BY_NIC)
+			break;
+
+		if (!vptr->rd_info[dirty].skb) {
+			ret = velocity_alloc_rx_buf(vptr, dirty);
+			if (ret < 0)
+				break;
+		}
+		done++;
+		dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;	
+	} while (dirty != vptr->rd_curr);
+
+	if (done) {
+		vptr->rd_dirty = dirty;
+		vptr->rd_filled += done;
+		velocity_give_many_rx_descs(vptr);
+	}
+
+	return ret;
+}
+
+/**
+ *	velocity_init_rd_ring	-	set up receive ring
+ *	@vptr: velocity to configure
+ *
+ *	Allocate and set up the receive buffers for each ring slot and
+ *	assign them to the network adapter.
+ */
+
+static int velocity_init_rd_ring(struct velocity_info *vptr)
+{
+	int ret = -ENOMEM;
+	unsigned int rsize = sizeof(struct velocity_rd_info) * 
+					vptr->options.numrx;
+
+	vptr->rd_info = kmalloc(rsize, GFP_KERNEL);
+	if(vptr->rd_info == NULL)
+		goto out;
+	memset(vptr->rd_info, 0, rsize);
+
+	vptr->rd_filled = vptr->rd_dirty = vptr->rd_curr = 0;
+
+	ret = velocity_rx_refill(vptr);
+	if (ret < 0) {
+		VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
+			"%s: failed to allocate RX buffer.\n", vptr->dev->name);
+		velocity_free_rd_ring(vptr);
+	}
+out:
+	return ret;
+}
+
+/**
+ *	velocity_free_rd_ring	-	free receive ring
+ *	@vptr: velocity to clean up
+ *
+ *	Free the receive buffers for each ring slot and any
+ *	attached socket buffers that need to go away.
+ */
+
+static void velocity_free_rd_ring(struct velocity_info *vptr)
+{
+	int i;
+
+	if (vptr->rd_info == NULL)
+		return;
+
+	for (i = 0; i < vptr->options.numrx; i++) {
+		struct velocity_rd_info *rd_info = &(vptr->rd_info[i]);
+
+		if (!rd_info->skb)
+			continue;
+		pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
+				 PCI_DMA_FROMDEVICE);
+		rd_info->skb_dma = (dma_addr_t) NULL;
+
+		dev_kfree_skb(rd_info->skb);