Add ne2k-pci driver.

9 files changed, 2468 insertions, 0 deletions

diff --git a/dde_ne2k_pci/.gitignore b/dde_ne2k_pci/.gitignore
new file mode 100644
index 00000000..75c140f2
--- /dev/null
+++ b/dde_ne2k_pci/.gitignore
@@ -0,0 +1 @@
+dde_ne2k_pci
diff --git a/dde_ne2k_pci/8390.c b/dde_ne2k_pci/8390.c
new file mode 100644
index 00000000..ec3e22e6
--- /dev/null
+++ b/dde_ne2k_pci/8390.c
@@ -0,0 +1,109 @@
+/* 8390 core for usual drivers */
+
+static const char version[] =
+    "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
+
+#include "lib8390.c"
+
+int ei_open(struct net_device *dev)
+{
+	return __ei_open(dev);
+}
+EXPORT_SYMBOL(ei_open);
+
+int ei_close(struct net_device *dev)
+{
+	return __ei_close(dev);
+}
+EXPORT_SYMBOL(ei_close);
+
+int ei_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	return __ei_start_xmit(skb, dev);
+}
+EXPORT_SYMBOL(ei_start_xmit);
+
+struct net_device_stats *ei_get_stats(struct net_device *dev)
+{
+	return __ei_get_stats(dev);
+}
+EXPORT_SYMBOL(ei_get_stats);
+
+void ei_set_multicast_list(struct net_device *dev)
+{
+	__ei_set_multicast_list(dev);
+}
+EXPORT_SYMBOL(ei_set_multicast_list);
+
+void ei_tx_timeout(struct net_device *dev)
+{
+	__ei_tx_timeout(dev);
+}
+EXPORT_SYMBOL(ei_tx_timeout);
+
+irqreturn_t ei_interrupt(int irq, void *dev_id)
+{
+	return __ei_interrupt(irq, dev_id);
+}
+EXPORT_SYMBOL(ei_interrupt);
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+void ei_poll(struct net_device *dev)
+{
+	__ei_poll(dev);
+}
+EXPORT_SYMBOL(ei_poll);
+#endif
+
+const struct net_device_ops ei_netdev_ops = {
+	.ndo_open		= ei_open,
+	.ndo_stop		= ei_close,
+	.ndo_start_xmit		= ei_start_xmit,
+	.ndo_tx_timeout		= ei_tx_timeout,
+	.ndo_get_stats		= ei_get_stats,
+	.ndo_set_multicast_list = ei_set_multicast_list,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= ei_poll,
+#endif
+};
+EXPORT_SYMBOL(ei_netdev_ops);
+
+struct net_device *__alloc_ei_netdev(int size)
+{
+	struct net_device *dev = ____alloc_ei_netdev(size);
+#ifdef CONFIG_COMPAT_NET_DEV_OPS
+	if (dev) {
+		dev->hard_start_xmit = ei_start_xmit;
+		dev->get_stats	= ei_get_stats;
+		dev->set_multicast_list = ei_set_multicast_list;
+		dev->tx_timeout = ei_tx_timeout;
+	}
+#endif
+	return dev;
+}
+EXPORT_SYMBOL(__alloc_ei_netdev);
+
+void NS8390_init(struct net_device *dev, int startp)
+{
+	__NS8390_init(dev, startp);
+}
+EXPORT_SYMBOL(NS8390_init);
+
+#if defined(MODULE)
+
+static int __init ns8390_module_init(void)
+{
+	return 0;
+}
+
+static void __exit ns8390_module_exit(void)
+{
+}
+
+module_init(ns8390_module_init);
+module_exit(ns8390_module_exit);
+#endif /* MODULE */
+MODULE_LICENSE("GPL");
diff --git a/dde_ne2k_pci/8390.h b/dde_ne2k_pci/8390.h
new file mode 100644
index 00000000..3c61d6d2
--- /dev/null
+++ b/dde_ne2k_pci/8390.h
@@ -0,0 +1,231 @@
+/* Generic NS8390 register definitions. */
+/* This file is part of Donald Becker's 8390 drivers, and is distributed
+   under the same license. Auto-loading of 8390.o only in v2.2 - Paul G.
+   Some of these names and comments originated from the Crynwr
+   packet drivers, which are distributed under the GPL. */
+
+#ifndef _8390_h
+#define _8390_h
+
+#include <linux/if_ether.h>
+#include <linux/ioport.h>
+#include <linux/skbuff.h>
+
+#define TX_PAGES 12	/* Two Tx slots */
+
+#define ETHER_ADDR_LEN 6
+
+/* The 8390 specific per-packet-header format. */
+struct e8390_pkt_hdr {
+  unsigned char status; /* status */
+  unsigned char next;   /* pointer to next packet. */
+  unsigned short count; /* header + packet length in bytes */
+};
+
+#ifdef notdef
+extern int ei_debug;
+#else
+#define ei_debug 1
+#endif
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+extern void ei_poll(struct net_device *dev);
+extern void eip_poll(struct net_device *dev);
+#endif
+
+
+/* Without I/O delay - non ISA or later chips */
+extern void NS8390_init(struct net_device *dev, int startp);
+extern int ei_open(struct net_device *dev);
+extern int ei_close(struct net_device *dev);
+extern irqreturn_t ei_interrupt(int irq, void *dev_id);
+extern void ei_tx_timeout(struct net_device *dev);
+extern int ei_start_xmit(struct sk_buff *skb, struct net_device *dev);
+extern void ei_set_multicast_list(struct net_device *dev);
+extern struct net_device_stats *ei_get_stats(struct net_device *dev);
+
+extern const struct net_device_ops ei_netdev_ops;
+
+extern struct net_device *__alloc_ei_netdev(int size);
+static inline struct net_device *alloc_ei_netdev(void)
+{
+	return __alloc_ei_netdev(0);
+}
+
+/* With I/O delay form */
+extern void NS8390p_init(struct net_device *dev, int startp);
+extern int eip_open(struct net_device *dev);
+extern int eip_close(struct net_device *dev);
+extern irqreturn_t eip_interrupt(int irq, void *dev_id);
+extern void eip_tx_timeout(struct net_device *dev);
+extern int eip_start_xmit(struct sk_buff *skb, struct net_device *dev);
+extern void eip_set_multicast_list(struct net_device *dev);
+extern struct net_device_stats *eip_get_stats(struct net_device *dev);
+
+extern const struct net_device_ops eip_netdev_ops;
+
+extern struct net_device *__alloc_eip_netdev(int size);
+static inline struct net_device *alloc_eip_netdev(void)
+{
+	return __alloc_eip_netdev(0);
+}
+
+/* You have one of these per-board */
+struct ei_device {
+	const char *name;
+	void (*reset_8390)(struct net_device *);
+	void (*get_8390_hdr)(struct net_device *, struct e8390_pkt_hdr *, int);
+	void (*block_output)(struct net_device *, int, const unsigned char *, int);
+	void (*block_input)(struct net_device *, int, struct sk_buff *, int);
+	unsigned long rmem_start;
+	unsigned long rmem_end;
+	void __iomem *mem;
+	unsigned char mcfilter[8];
+	unsigned open:1;
+	unsigned word16:1;  		/* We have the 16-bit (vs 8-bit) version of the card. */
+	unsigned bigendian:1;		/* 16-bit big endian mode. Do NOT */
+					/* set this on random 8390 clones! */
+	unsigned txing:1;		/* Transmit Active */
+	unsigned irqlock:1;		/* 8390's intrs disabled when '1'. */
+	unsigned dmaing:1;		/* Remote DMA Active */
+	unsigned char tx_start_page, rx_start_page, stop_page;
+	unsigned char current_page;	/* Read pointer in buffer  */
+	unsigned char interface_num;	/* Net port (AUI, 10bT.) to use. */
+	unsigned char txqueue;		/* Tx Packet buffer queue length. */
+	short tx1, tx2;			/* Packet lengths for ping-pong tx. */
+	short lasttx;			/* Alpha version consistency check. */
+	unsigned char reg0;		/* Register '0' in a WD8013 */
+	unsigned char reg5;		/* Register '5' in a WD8013 */
+	unsigned char saved_irq;	/* Original dev->irq value. */
+	u32 *reg_offset;		/* Register mapping table */
+	spinlock_t page_lock;		/* Page register locks */
+	unsigned long priv;		/* Private field to store bus IDs etc. */
+#ifdef AX88796_PLATFORM
+	unsigned char rxcr_base;	/* default value for RXCR */
+#endif
+};
+
+/* The maximum number of 8390 interrupt service routines called per IRQ. */
+#define MAX_SERVICE 12
+
+/* The maximum time waited (in jiffies) before assuming a Tx failed. (20ms) */
+#define TX_TIMEOUT (20*HZ/100)
+
+#define ei_status (*(struct ei_device *)netdev_priv(dev))
+
+/* Some generic ethernet register configurations. */
+#define E8390_TX_IRQ_MASK	0xa	/* For register EN0_ISR */
+#define E8390_RX_IRQ_MASK	0x5
+
+#ifdef AX88796_PLATFORM
+#define E8390_RXCONFIG		(ei_status.rxcr_base | 0x04)
+#define E8390_RXOFF		(ei_status.rxcr_base | 0x20)
+#else
+#define E8390_RXCONFIG		0x4	/* EN0_RXCR: broadcasts, no multicast,errors */
+#define E8390_RXOFF		0x20	/* EN0_RXCR: Accept no packets */
+#endif
+
+#define E8390_TXCONFIG		0x00	/* EN0_TXCR: Normal transmit mode */
+#define E8390_TXOFF		0x02	/* EN0_TXCR: Transmitter off */
+
+
+/*  Register accessed at EN_CMD, the 8390 base addr.  */
+#define E8390_STOP	0x01	/* Stop and reset the chip */
+#define E8390_START	0x02	/* Start the chip, clear reset */
+#define E8390_TRANS	0x04	/* Transmit a frame */
+#define E8390_RREAD	0x08	/* Remote read */
+#define E8390_RWRITE	0x10	/* Remote write  */
+#define E8390_NODMA	0x20	/* Remote DMA */
+#define E8390_PAGE0	0x00	/* Select page chip registers */
+#define E8390_PAGE1	0x40	/* using the two high-order bits */
+#define E8390_PAGE2	0x80	/* Page 3 is invalid. */
+
+/*
+ *	Only generate indirect loads given a machine that needs them.
+ *      - removed AMIGA_PCMCIA from this list, handled as ISA io now
+ *	- the _p for generates no delay by default 8390p.c overrides this.
+ */
+
+#ifndef ei_inb
+#define ei_inb(_p)	inb(_p)
+#define ei_outb(_v,_p)	outb(_v,_p)
+#define ei_inb_p(_p)	inb(_p)
+#define ei_outb_p(_v,_p) outb(_v,_p)
+#endif
+
+#ifndef EI_SHIFT
+#define EI_SHIFT(x)	(x)
+#endif
+
+#define E8390_CMD	EI_SHIFT(0x00)  /* The command register (for all pages) */
+/* Page 0 register offsets. */
+#define EN0_CLDALO	EI_SHIFT(0x01)	/* Low byte of current local dma addr  RD */
+#define EN0_STARTPG	EI_SHIFT(0x01)	/* Starting page of ring bfr WR */
+#define EN0_CLDAHI	EI_SHIFT(0x02)	/* High byte of current local dma addr  RD */
+#define EN0_STOPPG	EI_SHIFT(0x02)	/* Ending page +1 of ring bfr WR */
+#define EN0_BOUNDARY	EI_SHIFT(0x03)	/* Boundary page of ring bfr RD WR */
+#define EN0_TSR		EI_SHIFT(0x04)	/* Transmit status reg RD */
+#define EN0_TPSR	EI_SHIFT(0x04)	/* Transmit starting page WR */
+#define EN0_NCR		EI_SHIFT(0x05)	/* Number of collision reg RD */
+#define EN0_TCNTLO	EI_SHIFT(0x05)	/* Low  byte of tx byte count WR */
+#define EN0_FIFO	EI_SHIFT(0x06)	/* FIFO RD */
+#define EN0_TCNTHI	EI_SHIFT(0x06)	/* High byte of tx byte count WR */
+#define EN0_ISR		EI_SHIFT(0x07)	/* Interrupt status reg RD WR */
+#define EN0_CRDALO	EI_SHIFT(0x08)	/* low byte of current remote dma address RD */
+#define EN0_RSARLO	EI_SHIFT(0x08)	/* Remote start address reg 0 */
+#define EN0_CRDAHI	EI_SHIFT(0x09)	/* high byte, current remote dma address RD */
+#define EN0_RSARHI	EI_SHIFT(0x09)	/* Remote start address reg 1 */
+#define EN0_RCNTLO	EI_SHIFT(0x0a)	/* Remote byte count reg WR */
+#define EN0_RCNTHI	EI_SHIFT(0x0b)	/* Remote byte count reg WR */
+#define EN0_RSR		EI_SHIFT(0x0c)	/* rx status reg RD */
+#define EN0_RXCR	EI_SHIFT(0x0c)	/* RX configuration reg WR */
+#define EN0_TXCR	EI_SHIFT(0x0d)	/* TX configuration reg WR */
+#define EN0_COUNTER0	EI_SHIFT(0x0d)	/* Rcv alignment error counter RD */
+#define EN0_DCFG	EI_SHIFT(0x0e)	/* Data configuration reg WR */
+#define EN0_COUNTER1	EI_SHIFT(0x0e)	/* Rcv CRC error counter RD */
+#define EN0_IMR		EI_SHIFT(0x0f)	/* Interrupt mask reg WR */
+#define EN0_COUNTER2	EI_SHIFT(0x0f)	/* Rcv missed frame error counter RD */
+
+/* Bits in EN0_ISR - Interrupt status register */
+#define ENISR_RX	0x01	/* Receiver, no error */
+#define ENISR_TX	0x02	/* Transmitter, no error */
+#define ENISR_RX_ERR	0x04	/* Receiver, with error */
+#define ENISR_TX_ERR	0x08	/* Transmitter, with error */
+#define ENISR_OVER	0x10	/* Receiver overwrote the ring */
+#define ENISR_COUNTERS	0x20	/* Counters need emptying */
+#define ENISR_RDC	0x40	/* remote dma complete */
+#define ENISR_RESET	0x80	/* Reset completed */
+#define ENISR_ALL	0x3f	/* Interrupts we will enable */
+
+/* Bits in EN0_DCFG - Data config register */
+#define ENDCFG_WTS	0x01	/* word transfer mode selection */
+#define ENDCFG_BOS	0x02	/* byte order selection */
+
+/* Page 1 register offsets. */
+#define EN1_PHYS   EI_SHIFT(0x01)	/* This board's physical enet addr RD WR */
+#define EN1_PHYS_SHIFT(i)  EI_SHIFT(i+1) /* Get and set mac address */
+#define EN1_CURPAG EI_SHIFT(0x07)	/* Current memory page RD WR */
+#define EN1_MULT   EI_SHIFT(0x08)	/* Multicast filter mask array (8 bytes) RD WR */
+#define EN1_MULT_SHIFT(i)  EI_SHIFT(8+i) /* Get and set multicast filter */
+
+/* Bits in received packet status byte and EN0_RSR*/
+#define ENRSR_RXOK	0x01	/* Received a good packet */
+#define ENRSR_CRC	0x02	/* CRC error */
+#define ENRSR_FAE	0x04	/* frame alignment error */
+#define ENRSR_FO	0x08	/* FIFO overrun */
+#define ENRSR_MPA	0x10	/* missed pkt */
+#define ENRSR_PHY	0x20	/* physical/multicast address */
+#define ENRSR_DIS	0x40	/* receiver disable. set in monitor mode */
+#define ENRSR_DEF	0x80	/* deferring */
+
+/* Transmitted packet status, EN0_TSR. */
+#define ENTSR_PTX 0x01	/* Packet transmitted without error */
+#define ENTSR_ND  0x02	/* The transmit wasn't deferred. */
+#define ENTSR_COL 0x04	/* The transmit collided at least once. */
+#define ENTSR_ABT 0x08  /* The transmit collided 16 times, and was deferred. */
+#define ENTSR_CRS 0x10	/* The carrier sense was lost. */
+#define ENTSR_FU  0x20  /* A "FIFO underrun" occurred during transmit. */
+#define ENTSR_CDH 0x40	/* The collision detect "heartbeat" signal was lost. */
+#define ENTSR_OWC 0x80  /* There was an out-of-window collision. */
+
+#endif /* _8390_h */
diff --git a/dde_ne2k_pci/Makeconf.local b/dde_ne2k_pci/Makeconf.local
new file mode 100644
index 00000000..d6594dc7
--- /dev/null
+++ b/dde_ne2k_pci/Makeconf.local
@@ -0,0 +1,10 @@
+SYSTEMS = x86-l4v2
+ARCH = x86
+SYSTEM = x86-l4v2
+
+DDEKITLIBDIR = /root/hurd/libddekit/
+DDEKITINCDIR = /root/hurd/libddekit/include
+DDE26LIBDIR = /root/hurd/libdde_linux26/lib/src
+OBJ_BASE = /root/hurd/libdde_linux26/build
+
+L4LIBDIR = .
diff --git a/dde_ne2k_pci/Makefile b/dde_ne2k_pci/Makefile
new file mode 100644
index 00000000..d4bc3050
--- /dev/null
+++ b/dde_ne2k_pci/Makefile
@@ -0,0 +1,18 @@
+PKGDIR        ?= ../libdde_linux26
+L4DIR         ?= $(PKGDIR)
+
+SYSTEMS        = x86-l4v2
+
+include Makeconf.local
+
+TARGET         = dde_ne2k_pci
+
+SRC_C          = main.c ne2k-pci.c 8390.c
+
+LIBS          += ../libmachdev/libmachdev.a -ldde_linux26.o -ldde_linux26_net ../libddekit/libddekit.a -lfshelp -ltrivfs -lpciaccess -lthreads -lshouldbeinlibc -lports
+CFLAGS        += -g
+
+# DDE configuration
+include $(L4DIR)/Makeconf
+
+include $(L4DIR)/mk/prog.mk
diff --git a/dde_ne2k_pci/default.ld b/dde_ne2k_pci/default.ld
new file mode 100644
index 00000000..f8e4e28d
--- /dev/null
+++ b/dde_ne2k_pci/default.ld
@@ -0,0 +1,213 @@
+/* Script for -z combreloc: combine and sort reloc sections */
+OUTPUT_FORMAT("elf32-i386", "elf32-i386",
+	      "elf32-i386")
+OUTPUT_ARCH(i386)
+ENTRY(_start)
+SEARCH_DIR("/usr/i486-gnu/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
+SECTIONS
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+       linker won't look for a file to match a
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+       doesn't matter which directory crtbegin.o
+       is in.  */
+    KEEP (*crtbegin.o(.ctors))
+    KEEP (*crtbegin?.o(.ctors))
+    /* We don't want to include the .ctor section from
+       the crtend.o file until after the sorted ctors.
+       The .ctor section from the crtend file contains the
+       end of ctors marker and it must be last */
+    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
+
+    KEEP (*(SORT(.ctors.*)))
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+
+    KEEP (*(.mark_beg_l4dde_ctors))
+    KEEP (*(SORT(.l4dde_ctors.?)))
+    KEEP (*(SORT(.l4dde_ctors.??)))
+    KEEP (*(SORT(.l4dde_ctors.???)))
+    KEEP (*(SORT(.l4dde_ctors.????)))
+    KEEP (*(SORT(.l4dde_ctors.?????)))
+    KEEP (*(.l4dde_ctors))
+    KEEP (*(.mark_end_l4dde_ctors))
+  }
+  .dtors          :
+  {
+    KEEP (*crtbegin.o(.dtors))
+    KEEP (*crtbegin?.o(.dtors))
+    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*(.dtors))
+  }
+  .jcr            : { KEEP (*(.jcr)) }
+  .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) }
+  .dynamic        : { *(.dynamic) }
+  .got            : { *(.got) }
+  . = DATA_SEGMENT_RELRO_END (12, .);
+  .got.plt        : { *(.got.plt) }
+  .data           :
+  {
+    *(.data .data.* .gnu.linkonce.d.*)
+    KEEP (*(.gnu.linkonce.d.*personality*))
+    SORT(CONSTRUCTORS)
+  }
+  .data1          : { *(.data1) }
+  _edata = .; PROVIDE (edata = .);
+  __bss_start = .;
+  .bss            :
+  {
+   *(.dynbss)
+   *(.bss .bss.* .gnu.linkonce.b.*)
+   *(COMMON)
+   /* Align here to ensure that the .bss section occupies space up to
+      _end.  Align after .bss to ensure correct alignment even if the
+      .bss section disappears because there are no input sections.
+      FIXME: Why do we need it? When there is no .bss section, we don't
+      pad the .data section.  */
+   . = ALIGN(. != 0 ? 32 / 8 : 1);
+  }
+  . = ALIGN(32 / 8);
+  . = ALIGN(32 / 8);
+  _end = .; PROVIDE (end = .);
+  . = DATA_SEGMENT_END (.);
+  /* Stabs debugging sections.  */
+  .stab          0 : { *(.stab) }
+  .stabstr       0 : { *(.stabstr) }
+  .stab.excl     0 : { *(.stab.excl) }
+  .stab.exclstr  0 : { *(.stab.exclstr) }
+  .stab.index    0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+  .comment       0 : { *(.comment) }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
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+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* DWARF 3 */
+  .debug_pubtypes 0 : { *(.debug_pubtypes) }
+  .debug_ranges   0 : { *(.debug_ranges) }
+  .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
+  /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) }
+}
+
diff --git a/dde_ne2k_pci/lib8390.c b/dde_ne2k_pci/lib8390.c
new file mode 100644
index 00000000..3190a6a1
--- /dev/null
+++ b/dde_ne2k_pci/lib8390.c
@@ -0,0 +1,1126 @@
+/* 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 arbitary 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.
+  Paul Gortmaker	: Remove old unused single Tx buffer code.
+  Hayato Fujiwara	: Add m32r support.
+  Paul Gortmaker	: use skb_padto() instead of stack scratch area
+
+  Sources:
+  The National Semiconductor LAN Databook, and the 3Com 3c503 databook.
+
+  */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/jiffies.h>
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/in.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/crc32.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+#define NS8390_CORE
+#include "8390.h"
+#include <ddekit/timer.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)
+
+/* use 0 for production, 1 for verification, >2 for debug */
+#ifndef ei_debug
+int ei_debug = 1;
+#endif
+
+/* Index to functions. */
+static void ei_tx_intr(struct net_device *dev);
+static void ei_tx_err(struct net_device *dev);
+void ei_tx_timeout(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);
+static void __NS8390_init(struct net_device *dev, int startp);
+
+/*
+ *	SMP and the 8390 setup.
+ *
+ *	The 8390 isnt 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.
+ *
+ *	Additional explanation of problems with locking by Alan Cox:
+ *
+ *	"The author (me) didn't use spin_lock_irqsave because the slowness of the
+ *	card means that approach caused horrible problems like losing serial data
+ *	at 38400 baud on some chips. Remember many 8390 nics on PCI were ISA
+ *	chips with FPGA front ends.
+ *
+ *	Ok the logic behind the 8390 is very simple:
+ *
+ *	Things to know
+ *		- IRQ delivery is asynchronous to the PCI bus
+ *		- Blocking the local CPU IRQ via spin locks was too slow
+ *		- The chip has register windows needing locking work
+ *
+ *	So the path was once (I say once as people appear to have changed it
+ *	in the mean time and it now looks rather bogus if the changes to use
+ *	disable_irq_nosync_irqsave are disabling the local IRQ)
+ *
+ *
+ *		Take the page lock
+ *		Mask the IRQ on chip
+ *		Disable the IRQ (but not mask locally- someone seems to have
+ *			broken this with the lock validator stuff)
+ *			[This must be _nosync as the page lock may otherwise
+ *				deadlock us]
+ *		Drop the page lock and turn IRQs back on
+ *
+ *		At this point an existing IRQ may still be running but we can't
+ *		get a new one
+ *
+ *		Take the lock (so we know the IRQ has terminated) but don't mask
+ *	the IRQs on the processor
+ *		Set irqlock [for debug]
+ *
+ *		Transmit (slow as ****)
+ *
+ *		re-enable the IRQ
+ *
+ *
+ *	We have to use disable_irq because otherwise you will get delayed
+ *	interrupts on the APIC bus deadlocking the transmit path.
+ *
+ *	Quite hairy but the chip simply wasn't designed for SMP and you can't
+ *	even ACK an interrupt without risking corrupting other parallel
+ *	activities on the chip." [lkml, 25 Jul 2007]
+ */
+
+
+
+/**
+ * ei_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 __ei_open(struct net_device *dev)
+{
+	unsigned long flags;
+	struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
+
+	if (dev->watchdog_timeo <= 0)
+		 dev->watchdog_timeo = TX_TIMEOUT;
+
+	/*
+	 *	Grab the page lock so we own the register set, then call
+	 *	the init function.
+	 */
+
+      	spin_lock_irqsave(&ei_local->page_lock, flags);
+	__NS8390_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;
+}
+
+/**
+ * ei_close - shut down network device
+ * @dev: network device to close
+ *
+ * Opposite of ei_open(). Only used when "ifconfig <devname> down" is done.
+ */
+static int __ei_close(struct net_device *dev)
+{
+	struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
+	unsigned long flags;
+
+	/*
+	 *	Hold the page lock during close
+	 */
+
+      	spin_lock_irqsave(&ei_local->page_lock, flags);
+	__NS8390_init(dev, 0);
+      	spin_unlock_irqrestore(&ei_local->page_lock, flags);
+	netif_stop_queue(dev);
+	return 0;
+}
+
+/**
+ * ei_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 __ei_tx_timeout(struct net_device *dev)
+{
+	unsigned long e8390_base = dev->base_addr;
+	struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
+	int txsr, isr, tickssofar = jiffies - dev->trans_start;
+	unsigned long flags;
+
+	dev->stats.tx_errors++;
+
+	spin_lock_irqsave(&ei_local->page_lock, flags);
+	txsr = ei_inb(e8390_base+EN0_TSR);
+	isr = ei_inb(e8390_base+EN0_ISR);
+	spin_unlock_irqrestore(&ei_local->page_lock, flags);
+
+	printk(KERN_DEBUG "%s: Tx timed out, %s TSR=%#2x, ISR=%#2x, t=%d.\n",
+		dev->name, (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 */
+
+	disable_irq_nosync_lockdep(dev->irq);
+	spin_lock(&ei_local->page_lock);
+
+	/* Try to restart the card.  Perhaps the user has fixed something. */
+	ei_reset_8390(dev);
+	__NS8390_init(dev, 1);
+
+	spin_unlock(&ei_local->page_lock);
+	enable_irq_lockdep(dev->irq);
+	netif_wake_queue(dev);
+}
+
+/**
+ * ei_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 int __ei_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	unsigned long e8390_base = dev->base_addr;
+	struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
+	int send_length = skb->len, output_page;
+	unsigned long flags;
+	char buf[ETH_ZLEN];
+	char *data = skb->data;
+
+	if (skb->len < ETH_ZLEN) {
+		memset(buf, 0, ETH_ZLEN);	/* more efficient than doing just the needed bits */
+		memcpy(buf, data, skb->len);
+		send_length = ETH_ZLEN;
+		data = buf;
+	}
+
+	/* 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);
+	ei_outb_p(0x00, e8390_base + EN0_IMR);
+	spin_unlock_irqrestore(&ei_local->page_lock, flags);
+
+
+	/*
+	 *	Slow phase with lock held.
+	 */
+
+	disable_irq_nosync_lockdep_irqsave(dev->irq, &flags);
+
+	spin_lock(&ei_local->page_lock);
+
+	ei_local->irqlock = 1;
+
+	/*
+	 * 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 (ei_debug  &&  ei_local->tx2 > 0)
+			printk(KERN_DEBUG "%s: idle transmitter tx2=%d, lasttx=%d, txing=%d.\n",
+				dev->name, 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 (ei_debug  &&  ei_local->tx1 > 0)
+			printk(KERN_DEBUG "%s: idle transmitter, tx1=%d, lasttx=%d, txing=%d.\n",
+				dev->name, ei_local->tx1, ei_local->lasttx, ei_local->txing);
+	}
+	else
+	{	/* We should never get here. */
+		if (ei_debug)
+			printk(KERN_DEBUG "%s: No Tx buffers free! tx1=%d tx2=%d last=%d\n",
+				dev->name, ei_local->tx1, ei_local->tx2, ei_local->lasttx);
+		ei_local->irqlock = 0;
+		netif_stop_queue(dev);
+		ei_outb_p(ENISR_ALL, e8390_base + EN0_IMR);
+		spin_unlock(&ei_local->page_lock);
+		enable_irq_lockdep_irqrestore(dev->irq, &flags);
+		dev->stats.tx_errors++;
+		return 1;
+	}
+
+	/*
+	 * 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.
+	 */
+
+	ei_block_output(dev, send_length, data, output_page);
+
+	if (! ei_local->txing)
+	{
+		ei_local->txing = 1;
+		NS8390_trigger_send(dev, send_length, output_page);
+		dev->trans_start = jiffies;
+		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;
+	ei_outb_p(ENISR_ALL, e8390_base + EN0_IMR);
+
+	spin_unlock(&ei_local->page_lock);
+	enable_irq_lockdep_irqrestore(dev->irq, &flags);
+
+	dev_kfree_skb (skb);
+	dev->stats.tx_bytes += send_length;
+
+	return 0;
+}
+
+/**
+ * ei_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 __ei_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	unsigned long e8390_base = dev->base_addr;
+	int interrupts, nr_serviced = 0;
+	struct ei_device *ei_local = netdev_priv(dev);
+
+	/*
+	 *	Protect the irq test too.
+	 */
+
+	spin_lock(&ei_local->page_lock);
+
+	if (ei_local->irqlock)
+	{
+#if 1 /* This might just be an interrupt for a PCI device sharing this line */
+		/* The "irqlock" check is only for testing. */
+		printk(ei_local->irqlock
+			   ? "%s: Interrupted while interrupts are masked! isr=%#2x imr=%#2x.\n"
+			   : "%s: Reentering the interrupt handler! isr=%#2x imr=%#2x.\n",
+			   dev->name, ei_inb_p(e8390_base + EN0_ISR),
+			   ei_inb_p(e8390_base + EN0_IMR));
+#endif
+		spin_unlock(&ei_local->page_lock);
+		return IRQ_NONE;
+	}
+
+	/* Change to page 0 and read the intr status reg. */
+	ei_outb_p(E8390_NODMA+E8390_PAGE0, e8390_base + E8390_CMD);
+	if (ei_debug > 3)
+		printk(KERN_DEBUG "%s: interrupt(isr=%#2.2x).\n", dev->name,
+			   ei_inb_p(e8390_base + EN0_ISR));
+
+	/* !!Assumption!! -- we stay in page 0.	 Don't break this. */
+	while ((interrupts = ei_inb_p(e8390_base + EN0_ISR)) != 0
+		   && ++nr_serviced < MAX_SERVICE)
+	{
+		if (!netif_running(dev)) {
+			printk(KERN_WARNING "%s: interrupt from stopped card\n", dev->name);
+			/* rmk - acknowledge the interrupts */
+			ei_outb_p(interrupts, e8390_base + EN0_ISR);
+			interrupts = 0;
+			break;
+		}
+		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 += ei_inb_p(e8390_base + EN0_COUNTER0);
+			dev->stats.rx_crc_errors   += ei_inb_p(e8390_base + EN0_COUNTER1);
+			dev->stats.rx_missed_errors+= ei_inb_p(e8390_base + EN0_COUNTER2);
+			ei_outb_p(ENISR_COUNTERS, e8390_base + EN0_ISR); /* Ack intr. */
+		}
+
+		/* Ignore any RDC interrupts that make it back to here. */
+		if (interrupts & ENISR_RDC)
+		{
+			ei_outb_p(ENISR_RDC, e8390_base + EN0_ISR);
+		}
+
+		ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base + E8390_CMD);
+	}
+
+	if (interrupts && ei_debug)
+	{
+		ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base + E8390_CMD);
+		if (nr_serviced >= MAX_SERVICE)
+		{
+			/* 0xFF is valid for a card removal */
+			if(interrupts!=0xFF)
+				printk(KERN_WARNING "%s: Too much work at interrupt, status %#2.2x\n",
+				   dev->name, interrupts);
+			ei_outb_p(ENISR_ALL, e8390_base + EN0_ISR); /* Ack. most intrs. */
+		} else {
+			printk(KERN_WARNING "%s: unknown interrupt %#2x\n", dev->name, interrupts);
+			ei_outb_p(0xff, e8390_base + EN0_ISR); /* Ack. all intrs. */
+		}
+	}
+	spin_unlock(&ei_local->page_lock);
+	return IRQ_RETVAL(nr_serviced > 0);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void __ei_poll(struct net_device *dev)
+{
+	disable_irq(dev->irq);
+	__ei_interrupt(dev->irq, dev);
+	enable_irq(dev->irq);
+}
+#endif
+
+/**
+ * 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)
+{
+	unsigned long e8390_base = dev->base_addr;
+	/* ei_local is used on some platforms via the EI_SHIFT macro */
+	struct ei_device *ei_local __maybe_unused = netdev_priv(dev);
+	unsigned char txsr = ei_inb_p(e8390_base+EN0_TSR);
+	unsigned char tx_was_aborted = txsr & (ENTSR_ABT+ENTSR_FU);
+
+#ifdef VERBOSE_ERROR_DUMP
+	printk(KERN_DEBUG "%s: transmitter error (%#2x): ", dev->name, txsr);
+	if (txsr & ENTSR_ABT)
+		printk("excess-collisions ");
+	if (txsr & ENTSR_ND)
+		printk("non-deferral ");
+	if (txsr & ENTSR_CRS)
+		printk("lost-carrier ");
+	if (txsr & ENTSR_FU)
+		printk("FIFO-underrun ");
+	if (txsr & ENTSR_CDH)
+		printk("lost-heartbeat ");
+	printk("\n");
+#endif
+
+	ei_outb_p(ENISR_TX_ERR, e8390_base + EN0_ISR); /* Ack intr. */
+
+	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++;
+	}
+}
+
+/**
+ * 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)
+{
+	unsigned long e8390_base = dev->base_addr;
+	struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
+	int status = ei_inb(e8390_base + EN0_TSR);
+
+	ei_outb_p(ENISR_TX, e8390_base + EN0_ISR); /* Ack intr. */
+
+	/*
+	 * 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)
+			printk(KERN_ERR "%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);
+			dev->trans_start = jiffies;
+			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)
+			printk("%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);
+			dev->trans_start = jiffies;
+			ei_local->tx1 = -1;
+			ei_local->lasttx = 1;
+		}
+		else
+			ei_local->lasttx = 10, ei_local->txing = 0;
+	}
+//	else printk(KERN_WARNING "%s: unexpected TX-done interrupt, lasttx=%d.\n",
+//			dev->name, 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);
+}
+
+/**
+ * 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)
+{
+	unsigned long e8390_base = dev->base_addr;
+	struct ei_device *ei_local = (struct ei_device *) 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;
+	int num_rx_pages = ei_local->stop_page-ei_local->rx_start_page;
+
+	while (++rx_pkt_count < 10)
+	{
+		int pkt_len, pkt_stat;
+
+		/* Get the rx page (incoming packet pointer). */
+		ei_outb_p(E8390_NODMA+E8390_PAGE1, e8390_base + E8390_CMD);
+		rxing_page = ei_inb_p(e8390_base + EN1_CURPAG);
+		ei_outb_p(E8390_NODMA+E8390_PAGE0, e8390_base + E8390_CMD);
+
+		/* Remove one frame from the ring.  Boundary is always a page behind. */
+		this_frame = ei_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 (ei_debug > 0  &&  this_frame != ei_local->current_page && (this_frame!=0x0 || rxing_page!=0xFF))
+			printk(KERN_ERR "%s: mismatched read page pointers %2x vs %2x.\n",
+				   dev->name, 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);
+
+		/* Check for bogosity warned by 3c503 book: the status byte is never
+		   written.  This happened a lot during testing! This code should be
+		   cleaned up someday. */
+		if (rx_frame.next != next_frame
+			&& rx_frame.next != next_frame + 1
+			&& rx_frame.next != next_frame - num_rx_pages
+			&& rx_frame.next != next_frame + 1 - num_rx_pages) {
+			ei_local->current_page = rxing_page;
+			ei_outb(ei_local->current_page-1, e8390_base+EN0_BOUNDARY);
+			dev->stats.rx_errors++;
+			continue;
+		}
+
+		if (pkt_len < 60  ||  pkt_len > 1518)
+		{
+			if (ei_debug)
+				printk(KERN_DEBUG "%s: bogus packet size: %d, status=%#2x nxpg=%#2x.\n",
+					   dev->name, 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 = dev_alloc_skb(pkt_len+2);
+			if (skb == NULL)
+			{
+				if (ei_debug > 1)
+					printk(KERN_DEBUG "%s: Couldn't allocate a sk_buff of size %d.\n",
+						   dev->name, 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
+		{
+			if (ei_debug)
+				printk(KERN_DEBUG "%s: bogus packet: status=%#2x nxpg=%#2x size=%d\n",
+					   dev->name, 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) {
+			printk("%s: next frame inconsistency, %#2x\n", dev->name,
+				   next_frame);
+			next_frame = ei_local->rx_start_page;
+		}
+		ei_local->current_page = next_frame;
+		ei_outb_p(next_frame-1, e8390_base+EN0_BOUNDARY);
+	}
+
+	/* We used to also ack ENISR_OVER here, but that would sometimes mask
+	   a real overrun, leaving the 8390 in a stopped state with rec'vr off. */
+	ei_outb_p(ENISR_RX+ENISR_RX_ERR, e8390_base+EN0_ISR);
+	return;
+}
+
+/**
+ * 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)
+{
+	unsigned long e8390_base = dev->base_addr;
+	unsigned char was_txing, must_resend = 0;
+	/* ei_local is used on some platforms via the EI_SHIFT macro */
+	struct ei_device *ei_local __maybe_unused = netdev_priv(dev);
+
+	/*
+	 * Record whether a Tx was in progress and then issue the
+	 * stop command.
+	 */
+	was_txing = ei_inb_p(e8390_base+E8390_CMD) & E8390_TRANS;
+	ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD);
+
+	if (ei_debug > 1)
+		printk(KERN_DEBUG "%s: Receiver overrun.\n", dev->name);
+	dev->stats.rx_over_errors++;
+
+	/*
+	 * Wait a full Tx time (1.2ms) + some guard time, NS says 1.6ms total.
+	 * Early datasheets said to poll the reset bit, but now they say that
+	 * it "is not a reliable indicator and subsequently should be ignored."
+	 * We wait at least 10ms.
+	 */
+
+	mdelay(10);
+
+	/*
+	 * Reset RBCR[01] back to zero as per magic incantation.
+	 */
+	ei_outb_p(0x00, e8390_base+EN0_RCNTLO);
+	ei_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 = ei_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.
+	 */
+	ei_outb_p(E8390_TXOFF, e8390_base + EN0_TXCR);
+	ei_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);
+	ei_outb_p(ENISR_OVER, e8390_base+EN0_ISR);
+
+	/*
+	 * Leave loopback mode, and resend any packet that got stopped.
+	 */
+	ei_outb_p(E8390_TXCONFIG, e8390_base + EN0_TXCR);
+	if (must_resend)
+    		ei_outb_p(E8390_NODMA + E8390_PAGE0 + E8390_START + E8390_TRANS, e8390_base + E8390_CMD);
+}
+
+/*
+ *	Collect the stats. This is called unlocked and from several contexts.
+ */
+
+static struct net_device_stats *__ei_get_stats(struct net_device *dev)
+{
+	unsigned long ioaddr = dev->base_addr;
+	struct ei_device *ei_local = (struct ei_device *) 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 += ei_inb_p(ioaddr + EN0_COUNTER0);
+	dev->stats.rx_crc_errors   += ei_inb_p(ioaddr + EN0_COUNTER1);
+	dev->stats.rx_missed_errors+= ei_inb_p(ioaddr + EN0_COUNTER2);
+	spin_unlock_irqrestore(&ei_local->page_lock, flags);
+
+	return &dev->stats;
+}
+
+/*
+ * 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 dev_mc_list *dmi;
+
+	for (dmi=dev->mc_list; dmi; dmi=dmi->next)
+	{
+		u32 crc;
+		if (dmi->dmi_addrlen != ETH_ALEN)
+		{
+			printk(KERN_INFO "%s: invalid multicast address length given.\n", dev->name);
+			continue;
+		}
+		crc = ether_crc(ETH_ALEN, dmi->dmi_addr);
+		/*
+		 * The 8390 uses the 6 most significant bits of the
+		 * CRC to index the multicast table.
+		 */
+		bits[crc>>29] |= (1<<((crc>>26)&7));
+	}
+}
+
+/**
+ * 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. May be called
+ *	from a BH in 2.1.x. Must be called with lock held.
+ */
+
+static void do_set_multicast_list(struct net_device *dev)
+{
+	unsigned long e8390_base = dev->base_addr;
+	int i;
+	struct ei_device *ei_local = (struct ei_device*)netdev_priv(dev);
+
+	if (!(dev->flags&(IFF_PROMISC|IFF_ALLMULTI)))
+	{
+		memset(ei_local->mcfilter, 0, 8);
+		if (dev->mc_list)
+			make_mc_bits(ei_local->mcfilter, dev);
+	}
+	else
+		memset(ei_local->mcfilter, 0xFF, 8);	/* mcast set to accept-all */
+
+	/*
+	 * DP8390 manuals don't specify any magic sequence for altering
+	 * the multicast regs on an already running card. To be safe, we
+	 * ensure multicast mode is off prior to loading up the new hash
+	 * table. If this proves to be not enough, we can always resort
+	 * to stopping the NIC, loading the table and then restarting.
+	 *
+	 * Bug Alert!  The MC regs on the SMC 83C690 (SMC Elite and SMC
+	 * Elite16) appear to be write-only. The NS 8390 data sheet lists
+	 * them as r/w so this is a bug.  The SMC 83C790 (SMC Ultra and
+	 * Ultra32 EISA) appears to have this bug fixed.
+	 */
+
+	if (netif_running(dev))
+		ei_outb_p(E8390_RXCONFIG, e8390_base + EN0_RXCR);
+	ei_outb_p(E8390_NODMA + E8390_PAGE1, e8390_base + E8390_CMD);
+	for(i = 0; i < 8; i++)
+	{
+		ei_outb_p(ei_local->mcfilter[i], e8390_base + EN1_MULT_SHIFT(i));
+#ifndef BUG_83C690
+		if(ei_inb_p(e8390_base + EN1_MULT_SHIFT(i))!=ei_local->mcfilter[i])
+			printk(KERN_ERR "Multicast filter read/write mismap %d\n",i);
+#endif
+	}
+	ei_outb_p(E8390_NODMA + E8390_PAGE0, e8390_base + E8390_CMD);
+
+  	if(dev->flags&IFF_PROMISC)
+  		ei_outb_p(E8390_RXCONFIG | 0x18, e8390_base + EN0_RXCR);
+	else if(dev->flags&IFF_ALLMULTI || dev->mc_list)
+  		ei_outb_p(E8390_RXCONFIG | 0x08, e8390_base + EN0_RXCR);
+  	else
+  		ei_outb_p(E8390_RXCONFIG, e8390_base + EN0_RXCR);
+ }
+
+/*
+ *	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 __ei_set_multicast_list(struct net_device *dev)
+{
+	unsigned long flags;
+	struct ei_device *ei_local = (struct ei_device*)netdev_priv(dev);
+
+	spin_lock_irqsave(&ei_local->page_lock, flags);
+	do_set_multicast_list(dev);
+	spin_unlock_irqrestore(&ei_local->page_lock, flags);
+}
+
+/**
+ * ethdev_setup - init rest of 8390 device struct
+ * @dev: network device structure to init
+ *
+ * Initialize the rest of the 8390 device structure.  Do NOT __init
+ * this, as it is used by 8390 based modular drivers too.
+ */
+
+static void ethdev_setup(struct net_device *dev)
+{
+	struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
+	if (ei_debug > 1)
+		printk(version);
+
+	ether_setup(dev);
+
+	spin_lock_init(&ei_local->page_lock);
+}
+
+/**
+ * alloc_ei_netdev - alloc_etherdev counterpart for 8390
+ * @size: extra bytes to allocate
+ *
+ * Allocate 8390-specific net_device.
+ */
+static struct net_device *____alloc_ei_netdev(int size)
+{
+	return alloc_netdev(sizeof(struct ei_device) + size, "eth%d",
+				ethdev_setup);
+}
+
+
+
+
+/* This page of functions should be 8390 generic */
+/* Follow National Semi's recommendations for initializing the "NIC". */
+
+/**
+ * NS8390_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 __NS8390_init(struct net_device *dev, int startp)
+{
+	unsigned long e8390_base = dev->base_addr;
+	struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
+	int i;
+	int endcfg = ei_local->word16
+	    ? (0x48 | ENDCFG_WTS | (ei_local->bigendian ? ENDCFG_BOS : 0))
+	    : 0x48;
+
+	if(sizeof(struct e8390_pkt_hdr)!=4)
+    		panic("8390.c: header struct mispacked\n");
+	/* Follow National Semi's recommendations for initing the DP83902. */
+	ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); /* 0x21 */
+	ei_outb_p(endcfg, e8390_base + EN0_DCFG);	/* 0x48 or 0x49 */
+	/* Clear the remote byte count registers. */
+	ei_outb_p(0x00,  e8390_base + EN0_RCNTLO);
+	ei_outb_p(0x00,  e8390_base + EN0_RCNTHI);
+	/* Set to monitor and loopback mode -- this is vital!. */
+	ei_outb_p(E8390_RXOFF, e8390_base + EN0_RXCR); /* 0x20 */
+	ei_outb_p(E8390_TXOFF, e8390_base + EN0_TXCR); /* 0x02 */
+	/* Set the transmit page and receive ring. */
+	ei_outb_p(ei_local->tx_start_page, e8390_base + EN0_TPSR);
+	ei_local->tx1 = ei_local->tx2 = 0;
+	ei_outb_p(ei_local->rx_start_page, e8390_base + EN0_STARTPG);
+	ei_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 */
+	ei_outb_p(ei_local->stop_page, e8390_base + EN0_STOPPG);
+	/* Clear the pending interrupts and mask. */
+	ei_outb_p(0xFF, e8390_base + EN0_ISR);
+	ei_outb_p(0x00,  e8390_base + EN0_IMR);
+
+	/* Copy the station address into the DS8390 registers. */
+
+	ei_outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP, e8390_base+E8390_CMD); /* 0x61 */
+	for(i = 0; i < 6; i++)
+	{
+		ei_outb_p(dev->dev_addr[i], e8390_base + EN1_PHYS_SHIFT(i));
+		if (ei_debug > 1 && ei_inb_p(e8390_base + EN1_PHYS_SHIFT(i))!=dev->dev_addr[i])
+			printk(KERN_ERR "Hw. address read/write mismap %d\n",i);
+	}
+
+	ei_outb_p(ei_local->rx_start_page, e8390_base + EN1_CURPAG);
+	ei_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 (startp)
+	{
+		ei_outb_p(0xff,  e8390_base + EN0_ISR);
+		ei_outb_p(ENISR_ALL,  e8390_base + EN0_IMR);
+		ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base+E8390_CMD);
+		ei_outb_p(E8390_TXCONFIG, e8390_base + EN0_TXCR); /* xmit on. */
+		/* 3c503 TechMan says rxconfig only after the NIC is started. */
+		ei_outb_p(E8390_RXCONFIG, e8390_base + EN0_RXCR); /* rx on,  */
+		do_set_multicast_list(dev);	/* (re)load the mcast table */
+	}
+}
+
+/* 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)
+{
+	unsigned long e8390_base = dev->base_addr;
+ 	struct ei_device *ei_local __attribute((unused)) = (struct ei_device *) netdev_priv(dev);
+
+	ei_outb_p(E8390_NODMA+E8390_PAGE0, e8390_base+E8390_CMD);
+
+	if (ei_inb_p(e8390_base + E8390_CMD) & E8390_TRANS)
+	{
+		printk(KERN_WARNING "%s: trigger_send() called with the transmitter busy.\n",
+			dev->name);
+		return;
+	}
+	ei_outb_p(length & 0xff, e8390_base + EN0_TCNTLO);
+	ei_outb_p(length >> 8, e8390_base + EN0_TCNTHI);
+	ei_outb_p(start_page, e8390_base + EN0_TPSR);
+	ei_outb_p(E8390_NODMA+E8390_TRANS+E8390_START, e8390_base+E8390_CMD);
+}
diff --git a/dde_ne2k_pci/main.c b/dde_ne2k_pci/main.c
new file mode 100644
index 00000000..8f04bfeb
--- /dev/null
+++ b/dde_ne2k_pci/main.c
@@ -0,0 +1,32 @@
+#include <dde26.h> /* l4dde26_*() */
+#include <dde26_net.h> /* l4dde26 networking */
+
+#include <linux/netdevice.h> /* struct sk_buff */
+#include <linux/pci.h> /* pci_unregister_driver() */
+#include <linux/init.h>  // initcall()
+#include <linux/delay.h> // msleep()
+
+int using_std = 1;
+
+void netif_rx_handle (char *data, int len, struct net_device *dev);
+
+int main(int argc, char **argv)
+{
+	extern void ds_server(void);
+	l4dde26_init();
+	l4dde26_process_init();
+	l4dde26_softirq_init();
+
+	printk("Initializing skb subsystem\n");
+	skb_init();
+
+	l4dde26_do_initcalls();
+
+	mach_device_init();
+	trivfs_init();
+
+	cthread_detach (cthread_fork (ds_server, NULL));
+	trivfs_server();
+
+	return 0;
+}
diff --git a/dde_ne2k_pci/ne2k-pci.c b/dde_ne2k_pci/ne2k-pci.c
new file mode 100644
index 00000000..b7d700c6
--- /dev/null
+++ b/dde_ne2k_pci/ne2k-pci.c
@@ -0,0 +1,728 @@
+/* ne2k-pci.c: A NE2000 clone on PCI bus driver for Linux. */
+/*
+	A Linux device driver for PCI NE2000 clones.
+
+	Authors and other copyright holders:
+	1992-2000 by Donald Becker, NE2000 core and various modifications.
+	1995-1998 by Paul Gortmaker, core modifications and PCI support.
+	Copyright 1993 assigned to the 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 (GPL), incorporated herein by reference.
+	Drivers based on or derived from this code fall under the GPL and must
+	retain the authorship, copyright and license notice.  This file is not
+	a complete program and may only be used when the entire operating
+	system is licensed under the GPL.
+
+	The author may be reached as becker@scyld.com, or C/O
+	Scyld Computing Corporation
+	410 Severn Ave., Suite 210
+	Annapolis MD 21403
+
+	Issues remaining:
+	People are making PCI ne2000 clones! Oh the horror, the horror...
+	Limited full-duplex support.
+*/
+
+#define DRV_NAME	"ne2k-pci"
+#define DRV_VERSION	"1.03"
+#define DRV_RELDATE	"9/22/2003"
+
+
+/* The user-configurable values.
+   These may be modified when a driver module is loaded.*/
+
+static int debug = 1;			/* 1 normal messages, 0 quiet .. 7 verbose. */
+
+#define MAX_UNITS 8				/* More are supported, limit only on options */
+/* Used to pass the full-duplex flag, etc. */
+static int full_duplex[MAX_UNITS];
+static int options[MAX_UNITS];
+
+/* Force a non std. amount of memory.  Units are 256 byte pages. */
+/* #define PACKETBUF_MEMSIZE	0x40 */
+
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include "8390.h"
+#include <ddekit/timer.h>
+
+/* These identify the driver base version and may not be removed. */
+static char version[] __devinitdata =
+KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " D. Becker/P. Gortmaker\n";
+
+#if defined(__powerpc__)
+#define inl_le(addr)  le32_to_cpu(inl(addr))
+#define inw_le(addr)  le16_to_cpu(inw(addr))
+#endif
+
+#define PFX DRV_NAME ": "
+
+MODULE_AUTHOR("Donald Becker / Paul Gortmaker");
+MODULE_DESCRIPTION("PCI NE2000 clone driver");
+MODULE_LICENSE("GPL");
+
+module_param(debug, int, 0);
+module_param_array(options, int, NULL, 0);
+module_param_array(full_duplex, int, NULL, 0);
+MODULE_PARM_DESC(debug, "debug level (1-2)");
+MODULE_PARM_DESC(options, "Bit 5: full duplex");
+MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)");
+
+/* Some defines that people can play with if so inclined. */
+
+/* Use 32 bit data-movement operations instead of 16 bit. */
+#define USE_LONGIO
+
+/* Do we implement the read before write bugfix ? */
+/* #define NE_RW_BUGFIX */
+
+/* Flags.  We rename an existing ei_status field to store flags! */
+/* Thus only the low 8 bits are usable for non-init-time flags. */
+#define ne2k_flags reg0
+enum {
+	ONLY_16BIT_IO=8, ONLY_32BIT_IO=4,	/* Chip can do only 16/32-bit xfers. */
+	FORCE_FDX=0x20,						/* User override. */
+	REALTEK_FDX=0x40, HOLTEK_FDX=0x80,
+	STOP_PG_0x60=0x100,
+};
+
+enum ne2k_pci_chipsets {
+	CH_RealTek_RTL_8029 = 0,
+	CH_Winbond_89C940,
+	CH_Compex_RL2000,
+	CH_KTI_ET32P2,
+	CH_NetVin_NV5000SC,
+	CH_Via_86C926,
+	CH_SureCom_NE34,
+	CH_Winbond_W89C940F,
+	CH_Holtek_HT80232,
+	CH_Holtek_HT80229,
+	CH_Winbond_89C940_8c4a,
+};
+
+
+static struct {
+	char *name;
+	int flags;
+} pci_clone_list[] __devinitdata = {
+	{"RealTek RTL-8029", REALTEK_FDX},
+	{"Winbond 89C940", 0},
+	{"Compex RL2000", 0},
+	{"KTI ET32P2", 0},
+	{"NetVin NV5000SC", 0},
+	{"Via 86C926", ONLY_16BIT_IO},
+	{"SureCom NE34", 0},
+	{"Winbond W89C940F", 0},
+	{"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX},
+	{"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 },
+	{"Winbond W89C940(misprogrammed)", 0},
+	{NULL,}
+};
+
+
+static struct pci_device_id ne2k_pci_tbl[] = {
+	{ 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 },
+	{ 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 },
+	{ 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 },
+	{ 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 },
+	{ 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC },
+	{ 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 },
+	{ 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 },
+	{ 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F },
+	{ 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 },
+	{ 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 },
+	{ 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a },
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl);
+
+
+/* ---- No user-serviceable parts below ---- */
+
+#define NE_BASE	 (dev->base_addr)
+#define NE_CMD	 	0x00
+#define NE_DATAPORT	0x10	/* NatSemi-defined port window offset. */
+#define NE_RESET	0x1f	/* Issue a read to reset, a write to clear. */
+#define NE_IO_EXTENT	0x20
+
+#define NESM_START_PG	0x40	/* First page of TX buffer */
+#define NESM_STOP_PG	0x80	/* Last page +1 of RX ring */
+
+
+static int ne2k_pci_open(struct net_device *dev);
+static int ne2k_pci_close(struct net_device *dev);
+
+static void ne2k_pci_reset_8390(struct net_device *dev);
+static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
+			  int ring_page);
+static void ne2k_pci_block_input(struct net_device *dev, int count,
+			  struct sk_buff *skb, int ring_offset);
+static void ne2k_pci_block_output(struct net_device *dev, const int count,
+		const unsigned char *buf, const int start_page);
+static const struct ethtool_ops ne2k_pci_ethtool_ops;
+
+
+
+/* There is no room in the standard 8390 structure for extra info we need,
+   so we build a meta/outer-wrapper structure.. */
+struct ne2k_pci_card {
+	struct net_device *dev;
+	struct pci_dev *pci_dev;
+};
+
+
+
+/*
+  NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet
+  buffer memory space.  By-the-spec NE2000 clones have 0x57,0x57 in bytes
+  0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be
+  detected by their SA prefix.
+
+  Reading the SAPROM from a word-wide card with the 8390 set in byte-wide
+  mode results in doubled values, which can be detected and compensated for.
+
+  The probe is also responsible for initializing the card and filling
+  in the 'dev' and 'ei_status' structures.
+*/
+
+static const struct net_device_ops ne2k_netdev_ops = {
+	.ndo_open		= ne2k_pci_open,
+	.ndo_stop		= ne2k_pci_close,
+	.ndo_start_xmit		= ei_start_xmit,
+	.ndo_tx_timeout		= ei_tx_timeout,
+	.ndo_get_stats		= ei_get_stats,
+	.ndo_set_multicast_list = ei_set_multicast_list,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller = ei_poll,
+#endif
+};
+
+static int __devinit ne2k_pci_init_one (struct pci_dev *pdev,
+				     const struct pci_device_id *ent)
+{
+	struct net_device *dev;
+	int i;
+	unsigned char SA_prom[32];
+	int start_page, stop_page;
+	int irq, reg0, chip_idx = ent->driver_data;
+	static unsigned int fnd_cnt;
+	long ioaddr;
+	int flags = pci_clone_list[chip_idx].flags;
+
+/* when built into the kernel, we only print version if device is found */
+#ifndef MODULE
+	static int printed_version;
+	if (!printed_version++)
+		printk(version);
+#endif
+
+	fnd_cnt++;
+
+	i = pci_enable_device (pdev);
+	if (i)
+		return i;
+
+	ioaddr = pci_resource_start (pdev, 0);
+	irq = pdev->irq;
+
+	if (!ioaddr || ((pci_resource_flags (pdev, 0) & IORESOURCE_IO) == 0)) {
+		dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n");
+		return -ENODEV;
+	}
+
+	if (request_region (ioaddr, NE_IO_EXTENT, DRV_NAME) == NULL) {
+		dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n",
+			NE_IO_EXTENT, ioaddr);
+		return -EBUSY;
+	}
+
+	reg0 = inb(ioaddr);
+	if (reg0 == 0xFF)
+		goto err_out_free_res;
+
+	/* Do a preliminary verification that we have a 8390. */
+	{
+		int regd;
+		outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD);
+		regd = inb(ioaddr + 0x0d);
+		outb(0xff, ioaddr + 0x0d);
+		outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD);
+		inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */
+		if (inb(ioaddr + EN0_COUNTER0) != 0) {
+			outb(reg0, ioaddr);
+			outb(regd, ioaddr + 0x0d);	/* Restore the old values. */
+			goto err_out_free_res;
+		}
+	}
+
+	/* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */
+	dev = alloc_ei_netdev();
+	if (!dev) {
+		dev_err(&pdev->dev, "cannot allocate ethernet device\n");
+		goto err_out_free_res;
+	}
+	dev->netdev_ops = &ne2k_netdev_ops;
+
+	SET_NETDEV_DEV(dev, &pdev->dev);
+
+	/* Reset card. Who knows what dain-bramaged state it was left in. */
+	{
+		unsigned long reset_start_time = jiffies;
+
+		outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET);
+
+		/* This looks like a horrible timing loop, but it should never take
+		   more than a few cycles.
+		*/
+		while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0)
+			/* Limit wait: '2' avoids jiffy roll-over. */
+			if (jiffies - reset_start_time > 2) {
+				dev_err(&pdev->dev,
+					"Card failure (no reset ack).\n");
+				goto err_out_free_netdev;
+			}
+
+		outb(0xff, ioaddr + EN0_ISR);		/* Ack all intr. */
+	}
+
+	/* Read the 16 bytes of station address PROM.
+	   We must first initialize registers, similar to NS8390_init(eifdev, 0).
+	   We can't reliably read the SAPROM address without this.
+	   (I learned the hard way!). */
+	{
+		struct {unsigned char value, offset; } program_seq[] = {
+			{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
+			{0x49,	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, EN0_RXCR},	/* 0x20  Set to monitor */
+			{E8390_TXOFF, EN0_TXCR},	/* 0x02  and loopback mode. */
+			{32,	EN0_RCNTLO},
+			{0x00,	EN0_RCNTHI},
+			{0x00,	EN0_RSARLO},	/* DMA starting at 0x0000. */
+			{0x00,	EN0_RSARHI},
+			{E8390_RREAD+E8390_START, E8390_CMD},
+		};
+		for (i = 0; i < ARRAY_SIZE(program_seq); i++)
+			outb(program_seq[i].value, ioaddr + program_seq[i].offset);
+
+	}
+
+	/* Note: all PCI cards have at least 16 bit access, so we don't have
+	   to check for 8 bit cards.  Most cards permit 32 bit access. */
+	if (flags & ONLY_32BIT_IO) {
+		for (i = 0; i < 4 ; i++)
+			((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT));
+	} else
+		for(i = 0; i < 32 /*sizeof(SA_prom)*/; i++)
+			SA_prom[i] = inb(ioaddr + NE_DATAPORT);
+
+	/* We always set the 8390 registers for word mode. */
+	outb(0x49, ioaddr + EN0_DCFG);
+	start_page = NESM_START_PG;
+
+	stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG;
+
+	/* Set up the rest of the parameters. */
+	dev->irq = irq;
+	dev->base_addr = ioaddr;
+	pci_set_drvdata(pdev, dev);
+
+	ei_status.name = pci_clone_list[chip_idx].name;
+	ei_status.tx_start_page = start_page;
+	ei_status.stop_page = stop_page;
+	ei_status.word16 = 1;
+	ei_status.ne2k_flags = flags;
+	if (fnd_cnt < MAX_UNITS) {
+		if (full_duplex[fnd_cnt] > 0  ||  (options[fnd_cnt] & FORCE_FDX))
+			ei_status.ne2k_flags |= FORCE_FDX;
+	}
+
+	ei_status.rx_start_page = start_page + TX_PAGES;
+#ifdef PACKETBUF_MEMSIZE
+	/* Allow the packet buffer size to be overridden by know-it-alls. */
+	ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
+#endif
+
+	ei_status.reset_8390 = &ne2k_pci_reset_8390;
+	ei_status.block_input = &ne2k_pci_block_input;
+	ei_status.block_output = &ne2k_pci_block_output;
+	ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr;
+	ei_status.priv = (unsigned long) pdev;
+
+	dev->ethtool_ops = &ne2k_pci_ethtool_ops;
+	NS8390_init(dev, 0);
+
+	i = register_netdev(dev);
+	if (i)
+		goto err_out_free_netdev;
+
+	for(i = 0; i < 6; i++)
+		dev->dev_addr[i] = SA_prom[i];
+	printk("%s: %s found at %#lx, IRQ %d, %pM.\n",
+	       dev->name, pci_clone_list[chip_idx].name, ioaddr, dev->irq,
+	       dev->dev_addr);
+
+	memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+
+	return 0;
+
+err_out_free_netdev:
+	free_netdev (dev);
+err_out_free_res:
+	release_region (ioaddr, NE_IO_EXTENT);
+	pci_set_drvdata (pdev, NULL);
+	return -ENODEV;
+
+}
+
+/*
+ * Magic incantation sequence for full duplex on the supported cards.
+ */
+static inline int set_realtek_fdx(struct net_device *dev)
+{
+	long ioaddr = dev->base_addr;
+
+	outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */
+	outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */
+	outb(0x40, ioaddr + 0x06); /* Enable full duplex */
+	outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */
+	outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */
+	return 0;
+}
+
+static inline int set_holtek_fdx(struct net_device *dev)
+{
+	long ioaddr = dev->base_addr;
+
+	outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20);
+	return 0;
+}
+
+static int ne2k_pci_set_fdx(struct net_device *dev)
+{
+	if (ei_status.ne2k_flags & REALTEK_FDX)
+		return set_realtek_fdx(dev);
+	else if (ei_status.ne2k_flags & HOLTEK_FDX)
+		return set_holtek_fdx(dev);
+
+	return -EOPNOTSUPP;
+}
+
+static int ne2k_pci_open(struct net_device *dev)
+{
+	int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, dev->name, dev);
+	if (ret)
+		return ret;
+
+	if (ei_status.ne2k_flags & FORCE_FDX)
+		ne2k_pci_set_fdx(dev);
+
+	ei_open(dev);
+	return 0;
+}
+
+static int ne2k_pci_close(struct net_device *dev)
+{
+	ei_close(dev);
+	free_irq(dev->irq, dev);
+	return 0;
+}
+
+/* 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 ne2k_pci_reset_8390(struct net_device *dev)
+{
+	unsigned long reset_start_time = jiffies;
+
+	if (debug > 1) printk("%s: Resetting the 8390 t=%ld...",
+						  dev->name, jiffies);
+
+	outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
+
+	ei_status.txing = 0;
+	ei_status.dmaing = 0;
+
+	/* This check _should_not_ be necessary, omit eventually. */
+	while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0)
+		if (jiffies - reset_start_time > 2) {
+			printk("%s: ne2k_pci_reset_8390() did not complete.\n", dev->name);
+			break;
+		}
+	outb(ENISR_RESET, NE_BASE + EN0_ISR);	/* Ack intr. */
+}
+
+/* Grab the 8390 specific header. Similar to the block_input routine, but
+   we don't need to be concerned with ring wrap as the header will be at
+   the start of a page, so we optimize accordingly. */
+
+static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
+{
+
+	long nic_base = dev->base_addr;
+
+	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
+	if (ei_status.dmaing) {
+		printk("%s: DMAing conflict in ne2k_pci_get_8390_hdr "
+			   "[DMAstat:%d][irqlock:%d].\n",
+			   dev->name, ei_status.dmaing, ei_status.irqlock);
+		return;
+	}
+
+	ei_status.dmaing |= 0x01;
+	outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
+	outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
+	outb(0, nic_base + EN0_RCNTHI);
+	outb(0, nic_base + EN0_RSARLO);		/* On page boundary */
+	outb(ring_page, nic_base + EN0_RSARHI);
+	outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
+
+	if (ei_status.ne2k_flags & ONLY_16BIT_IO) {
+		insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1);
+	} else {
+		*(u32*)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT));
+		le16_to_cpus(&hdr->count);
+	}
+
+	outb(ENISR_RDC, nic_base + EN0_ISR);	/* Ack intr. */
+	ei_status.dmaing &= ~0x01;
+}
+
+/* Block input and output, similar to the Crynwr packet driver.  If you
+   are porting to a new ethercard, look at the packet driver source for hints.
+   The NEx000 doesn't share the on-board packet memory -- you have to put
+   the packet out through the "remote DMA" dataport using outb. */
+
+static void ne2k_pci_block_input(struct net_device *dev, int count,
+				 struct sk_buff *skb, int ring_offset)
+{
+	long nic_base = dev->base_addr;
+	char *buf = skb->data;
+
+	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
+	if (ei_status.dmaing) {
+		printk("%s: DMAing conflict in ne2k_pci_block_input "
+			   "[DMAstat:%d][irqlock:%d].\n",
+			   dev->name, ei_status.dmaing, ei_status.irqlock);
+		return;
+	}
+	ei_status.dmaing |= 0x01;
+	if (ei_status.ne2k_flags & ONLY_32BIT_IO)
+		count = (count + 3) & 0xFFFC;
+	outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
+	outb(count & 0xff, nic_base + EN0_RCNTLO);
+	outb(count >> 8, nic_base + EN0_RCNTHI);
+	outb(ring_offset & 0xff, nic_base + EN0_RSARLO);
+	outb(ring_offset >> 8, nic_base + EN0_RSARHI);
+	outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
+
+	if (ei_status.ne2k_flags & ONLY_16BIT_IO) {
+		insw(NE_BASE + NE_DATAPORT,buf,count>>1);
+		if (count & 0x01) {
+			buf[count-1] = inb(NE_BASE + NE_DATAPORT);
+		}
+	} else {
+		insl(NE_BASE + NE_DATAPORT, buf, count>>2);
+		if (count & 3) {
+			buf += count & ~3;
+			if (count & 2) {
+				__le16 *b = (__le16 *)buf;
+
+				*b++ = cpu_to_le16(inw(NE_BASE + NE_DATAPORT));
+				buf = (char *)b;
+			}
+			if (count & 1)
+				*buf = inb(NE_BASE + NE_DATAPORT);
+		}
+	}
+
+	outb(ENISR_RDC, nic_base + EN0_ISR);	/* Ack intr. */
+	ei_status.dmaing &= ~0x01;
+}
+
+static void ne2k_pci_block_output(struct net_device *dev, int count,
+				  const unsigned char *buf, const int start_page)
+{
+	long nic_base = NE_BASE;
+	unsigned long dma_start;
+
+	/* On little-endian it's always safe to round the count up for
+	   word writes. */
+	if (ei_status.ne2k_flags & ONLY_32BIT_IO)
+		count = (count + 3) & 0xFFFC;
+	else
+		if (count & 0x01)
+			count++;
+
+	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
+	if (ei_status.dmaing) {
+		printk("%s: DMAing conflict in ne2k_pci_block_output."
+			   "[DMAstat:%d][irqlock:%d]\n",
+			   dev->name, ei_status.dmaing, ei_status.irqlock);
+		return;
+	}
+	ei_status.dmaing |= 0x01;
+	/* We should already be in page 0, but to be safe... */
+	outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
+
+#ifdef NE8390_RW_BUGFIX
+	/* Handle the read-before-write bug the same way as the
+	   Crynwr packet driver -- the NatSemi method doesn't work.
+	   Actually this doesn't always work either, but if you have
+	   problems with your NEx000 this is better than nothing! */
+	outb(0x42, nic_base + EN0_RCNTLO);
+	outb(0x00, nic_base + EN0_RCNTHI);
+	outb(0x42, nic_base + EN0_RSARLO);
+	outb(0x00, nic_base + EN0_RSARHI);
+	outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
+#endif
+	outb(ENISR_RDC, nic_base + EN0_ISR);
+
+   /* Now the normal output. */
+	outb(count & 0xff, nic_base + EN0_RCNTLO);
+	outb(count >> 8,   nic_base + EN0_RCNTHI);
+	outb(0x00, nic_base + EN0_RSARLO);
+	outb(start_page, nic_base + EN0_RSARHI);
+	outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
+	if (ei_status.ne2k_flags & ONLY_16BIT_IO) {
+		outsw(NE_BASE + NE_DATAPORT, buf, count>>1);
+	} else {
+		outsl(NE_BASE + NE_DATAPORT, buf, count>>2);
+		if (count & 3) {
+			buf += count & ~3;
+			if (count & 2) {
+				__le16 *b = (__le16 *)buf;
+
+				outw(le16_to_cpu(*b++), NE_BASE + NE_DATAPORT);
+				buf = (char *)b;
+			}
+		}
+	}
+
+	dma_start = jiffies;
+
+	while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0)
+		if (jiffies - dma_start > 2) {			/* Avoid clock roll-over. */
+			printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name);
+			ne2k_pci_reset_8390(dev);
+			NS8390_init(dev,1);
+			break;
+		}
+
+	outb(ENISR_RDC, nic_base + EN0_ISR);	/* Ack intr. */
+	ei_status.dmaing &= ~0x01;
+	return;
+}
+
+static void ne2k_pci_get_drvinfo(struct net_device *dev,
+				 struct ethtool_drvinfo *info)
+{
+	struct ei_device *ei = netdev_priv(dev);
+	struct pci_dev *pci_dev = (struct pci_dev *) ei->priv;
+
+	strcpy(info->driver, DRV_NAME);
+	strcpy(info->version, DRV_VERSION);
+	strcpy(info->bus_info, pci_name(pci_dev));
+}
+
+static const struct ethtool_ops ne2k_pci_ethtool_ops = {
+	.get_drvinfo		= ne2k_pci_get_drvinfo,
+};
+
+static void __devexit ne2k_pci_remove_one (struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+
+	BUG_ON(!dev);
+	unregister_netdev(dev);
+	release_region(dev->base_addr, NE_IO_EXTENT);
+	free_netdev(dev);
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+}
+
+#ifdef CONFIG_PM
+static int ne2k_pci_suspend (struct pci_dev *pdev, pm_message_t state)
+{
+	struct net_device *dev = pci_get_drvdata (pdev);
+
+	netif_device_detach(dev);
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+	return 0;
+}
+
+static int ne2k_pci_resume (struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata (pdev);
+	int rc;
+
+	pci_set_power_state(pdev, 0);
+	pci_restore_state(pdev);
+
+	rc = pci_enable_device(pdev);
+	if (rc)
+		return rc;
+
+	NS8390_init(dev, 1);
+	netif_device_attach(dev);
+
+	return 0;
+}
+
+#endif /* CONFIG_PM */
+
+
+static struct pci_driver ne2k_driver = {
+	.name		= DRV_NAME,
+	.probe		= ne2k_pci_init_one,
+	.remove		= __devexit_p(ne2k_pci_remove_one),
+	.id_table	= ne2k_pci_tbl,
+#ifdef CONFIG_PM
+	.suspend	= ne2k_pci_suspend,
+	.resume		= ne2k_pci_resume,
+#endif /* CONFIG_PM */
+
+};
+
+
+static int __init ne2k_pci_init(void)
+{
+/* when a module, this is printed whether or not devices are found in probe */
+#ifdef MODULE
+	printk(version);
+#endif
+	return pci_register_driver(&ne2k_driver);
+}
+
+
+static void __exit ne2k_pci_cleanup(void)
+{
+	pci_unregister_driver (&ne2k_driver);
+}
+
+module_init(ne2k_pci_init);
+module_exit(ne2k_pci_cleanup);