patch-2.2.14 linux/drivers/net/old_tulip.c
Next file: linux/drivers/net/pcnet32.c
Previous file: linux/drivers/net/ncr885e.h
Back to the patch index
Back to the overall index
- Lines: 2854
- Date:
Tue Jan 4 10:12:17 2000
- Orig file:
v2.2.13/linux/drivers/net/old_tulip.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.2.13/linux/drivers/net/old_tulip.c linux/drivers/net/old_tulip.c
@@ -0,0 +1,2853 @@
+/* tulip.c: A DEC 21040-family ethernet driver for Linux. */
+/*
+ Written 1994-1998 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU Public License, incorporated herein by reference.
+
+ This driver is for the Digital "Tulip" ethernet adapter interface.
+ It should work with most DEC 21*4*-based chips/ethercards, as well as
+ PNIC and MXIC chips.
+
+ The author may be reached as becker@CESDIS.gsfc.nasa.gov, or C/O
+ Center of Excellence in Space Data and Information Sciences
+ Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771
+
+ Support and updates available at
+ http://cesdis.gsfc.nasa.gov/linux/drivers/tulip.html
+*/
+
+#define SMP_CHECK
+static const char version[] = "tulip.c:v0.89H 5/23/98 becker@cesdis.gsfc.nasa.gov\n";
+
+/* A few user-configurable values. */
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static int max_interrupt_work = 25;
+
+#define MAX_UNITS 8
+/* Used to pass the full-duplex flag, etc. */
+static int full_duplex[MAX_UNITS] = {0, };
+static int options[MAX_UNITS] = {0, };
+static int mtu[MAX_UNITS] = {0, }; /* Jumbo MTU for interfaces. */
+
+/* The possible media types that can be set in options[] are: */
+static const char * const medianame[] = {
+ "10baseT", "10base2", "AUI", "100baseTx",
+ "10baseT-FD", "100baseTx-FD", "100baseT4", "100baseFx",
+ "100baseFx-FD", "MII 10baseT", "MII 10baseT-FD", "MII",
+ "10baseT(forced)", "MII 100baseTx", "MII 100baseTx-FD", "MII 100baseT4",
+};
+
+/* Set if the PCI BIOS detects the chips on a multiport board backwards. */
+#ifdef REVERSE_PROBE_ORDER
+static int reverse_probe = 1;
+#else
+static int reverse_probe = 0;
+#endif
+
+/* Keep the ring sizes a power of two for efficiency.
+ Making the Tx ring too large decreases the effectiveness of channel
+ bonding and packet priority.
+ There are no ill effects from too-large receive rings. */
+#define TX_RING_SIZE 16
+#define RX_RING_SIZE 32
+
+/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
+#ifdef __alpha__
+static int rx_copybreak = 1518;
+#else
+static int rx_copybreak = 100;
+#endif
+
+/* Operational parameters that usually are not changed. */
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (4*HZ)
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/malloc.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+
+#include <asm/processor.h> /* Processor type for cache alignment. */
+#include <asm/bitops.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+/* Kernel compatibility defines, common to David Hind's PCMCIA package.
+ This is only in the support-all-kernels source code. */
+#include <linux/version.h> /* Evil, but neccessary */
+
+#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x10300
+#define RUN_AT(x) (x) /* What to put in timer->expires. */
+#define DEV_ALLOC_SKB(len) alloc_skb(len, GFP_ATOMIC)
+#define virt_to_bus(addr) ((unsigned long)addr)
+#define bus_to_virt(addr) ((void*)addr)
+
+#else /* 1.3.0 and later */
+#define RUN_AT(x) (jiffies + (x))
+#define DEV_ALLOC_SKB(len) dev_alloc_skb(len + 2)
+#endif
+
+#if (LINUX_VERSION_CODE >= 0x10344)
+#define NEW_MULTICAST
+#include <linux/delay.h>
+#endif
+#ifdef SA_SHIRQ
+#define IRQ(irq, dev_id, pt_regs) (irq, dev_id, pt_regs)
+#else
+#define IRQ(irq, dev_id, pt_regs) (irq, pt_regs)
+#endif
+
+#if (LINUX_VERSION_CODE < 0x20123)
+#define hard_smp_processor_id() smp_processor_id()
+#define test_and_set_bit(val, addr) set_bit(val, addr)
+#endif
+
+/* This my implementation of shared IRQs, now only used for 1.2.13. */
+#ifdef HAVE_SHARED_IRQ
+#define USE_SHARED_IRQ
+#include <linux/shared_irq.h>
+#endif
+
+/* The total size is unusually large: The 21040 aligns each of its 16
+ longword-wide registers on a quadword boundary. */
+#define TULIP_TOTAL_SIZE 0x80
+
+#ifdef HAVE_DEVLIST
+struct netdev_entry tulip_drv =
+{"Tulip", tulip_pci_probe, TULIP_TOTAL_SIZE, NULL};
+#endif
+
+#ifdef TULIP_DEBUG
+int tulip_debug = TULIP_DEBUG;
+#else
+int tulip_debug = 1;
+#endif
+
+/*
+ Theory of Operation
+
+I. Board Compatibility
+
+This device driver is designed for the DECchip "Tulip", Digital's
+single-chip ethernet controllers for PCI. Supported members of the family
+are the 21040, 21041, 21140, 21140A, 21142, and 21143. These chips are used on
+many PCI boards including the SMC EtherPower series.
+
+
+II. Board-specific settings
+
+PCI bus devices are configured by the system at boot time, so no jumpers
+need to be set on the board. The system BIOS preferably should assign the
+PCI INTA signal to an otherwise unused system IRQ line.
+Note: Kernel versions earlier than 1.3.73 do not support shared PCI
+interrupt lines.
+
+III. Driver operation
+
+IIIa. Ring buffers
+
+The Tulip can use either ring buffers or lists of Tx and Rx descriptors.
+This driver uses statically allocated rings of Rx and Tx descriptors, set at
+compile time by RX/TX_RING_SIZE. This version of the driver allocates skbuffs
+for the Rx ring buffers at open() time and passes the skb->data field to the
+Tulip as receive data buffers. When an incoming frame is less than
+RX_COPYBREAK bytes long, a fresh skbuff is allocated and the frame is
+copied to the new skbuff. When the incoming frame is larger, the skbuff is
+passed directly up the protocol stack and replaced by a newly allocated
+skbuff.
+
+The RX_COPYBREAK value is chosen to trade-off the memory wasted by
+using a full-sized skbuff for small frames vs. the copying costs of larger
+frames. For small frames the copying cost is negligible (esp. considering
+that we are pre-loading the cache with immediately useful header
+information). For large frames the copying cost is non-trivial, and the
+larger copy might flush the cache of useful data. A subtle aspect of this
+choice is that the Tulip only receives into longword aligned buffers, thus
+the IP header at offset 14 isn't longword aligned for further processing.
+Copied frames are put into the new skbuff at an offset of "+2", thus copying
+has the beneficial effect of aligning the IP header and preloading the
+cache.
+
+IIIC. Synchronization
+The driver runs as two independent, single-threaded flows of control. One
+is the send-packet routine, which enforces single-threaded use by the
+dev->tbusy flag. The other thread is the interrupt handler, which is single
+threaded by the hardware and other software.
+
+The send packet thread has partial control over the Tx ring and 'dev->tbusy'
+flag. It sets the tbusy flag whenever it's queuing a Tx packet. If the next
+queue slot is empty, it clears the tbusy flag when finished otherwise it sets
+the 'tp->tx_full' flag.
+
+The interrupt handler has exclusive control over the Rx ring and records stats
+from the Tx ring. (The Tx-done interrupt can't be selectively turned off, so
+we can't avoid the interrupt overhead by having the Tx routine reap the Tx
+stats.) After reaping the stats, it marks the queue entry as empty by setting
+the 'base' to zero. Iff the 'tp->tx_full' flag is set, it clears both the
+tx_full and tbusy flags.
+
+IV. Notes
+
+Thanks to Duke Kamstra of SMC for providing an EtherPower board.
+
+IVb. References
+
+http://cesdis.gsfc.nasa.gov/linux/misc/NWay.html
+http://www.digital.com (search for current 21*4* datasheets and "21X4 SROM")
+http://www.national.com/pf/DP/DP83840.html
+
+IVc. Errata
+
+The DEC databook doesn't document which Rx filter settings accept broadcast
+packets. Nor does it document how to configure the part to configure the
+serial subsystem for normal (vs. loopback) operation or how to have it
+autoswitch between internal 10baseT, SIA and AUI transceivers.
+
+The 21040 databook claims that CSR13, CSR14, and CSR15 should each be the last
+register of the set CSR12-15 written. Hmmm, now how is that possible? */
+
+
+/* A few values that may be tweaked. */
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
+
+/* This is a mysterious value that can be written to CSR11 in the 21040 (only)
+ to support a pre-NWay full-duplex signaling mechanism using short frames.
+ No one knows what it should be, but if left at its default value some
+ 10base2(!) packets trigger a full-duplex-request interrupt. */
+#define FULL_DUPLEX_MAGIC 0x6969
+
+#ifndef PCI_VENDOR_ID_DEC /* Now defined in linux/pci.h */
+#define PCI_VENDOR_ID_DEC 0x1011
+#define PCI_DEVICE_ID_TULIP 0x0002 /* 21040. */
+#define PCI_DEVICE_ID_TULIP_FAST 0x0009 /* 21140. */
+#endif
+
+#ifndef PCI_DEVICE_ID_DEC_TULIP_PLUS
+#define PCI_DEVICE_ID_DEC_TULIP_PLUS 0x0014 /* 21041. */
+#endif
+#ifndef PCI_DEVICE_ID_DEC_TULIP_21142
+#define PCI_DEVICE_ID_DEC_TULIP_21142 0x0019
+#endif
+
+#ifndef PCI_VENDOR_ID_LITEON
+#define PCI_VENDOR_ID_LITEON 0x11AD
+#endif
+
+#ifndef PCI_VENDOR_ID_MXIC
+#define PCI_VENDOR_ID_MXIC 0x10d9
+#define PCI_DEVICE_ID_MX98713 0x0512
+#define PCI_DEVICE_ID_MX98715 0x0531
+#define PCI_DEVICE_ID_MX98725 0x0531
+#endif
+
+/* The rest of these values should never change. */
+
+static void tulip_timer(unsigned long data);
+static void t21142_timer(unsigned long data);
+static void mxic_timer(unsigned long data);
+static void pnic_timer(unsigned long data);
+
+/* A table describing the chip types. */
+enum tbl_flag { HAS_MII=1, HAS_MEDIA_TABLE = 2, CSR12_IN_SROM = 4,};
+static struct tulip_chip_table {
+ int vendor_id, device_id;
+ char *chip_name;
+ int io_size;
+ int valid_intrs; /* CSR7 interrupt enable settings */
+ int flags;
+ void (*media_timer)(unsigned long data);
+} tulip_tbl[] = {
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP,
+ "Digital DC21040 Tulip", 128, 0x0001ebef, 0, tulip_timer },
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS,
+ "Digital DC21041 Tulip", 128, 0x0001ebef, HAS_MEDIA_TABLE, tulip_timer },
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST,
+ "Digital DS21140 Tulip", 128, 0x0001ebef,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM,
+ tulip_timer },
+ { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_21142,
+ "Digital DS21142/3 Tulip", 128, 0x0801fbff,
+ HAS_MII | HAS_MEDIA_TABLE, t21142_timer },
+ { PCI_VENDOR_ID_LITEON, 0x0002,
+ "Lite-On 82c168 PNIC", 256, 0x0001ebef, HAS_MII, pnic_timer },
+ { PCI_VENDOR_ID_MXIC, PCI_DEVICE_ID_MX98713,
+ "Macronix 98713 PMAC", 128, 0x0001ebef,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, tulip_timer /* Tulip-like! */ },
+ { PCI_VENDOR_ID_MXIC, PCI_DEVICE_ID_MX98715,
+ "Macronix 98715 PMAC", 256, 0x0001ebef, HAS_MEDIA_TABLE, mxic_timer },
+ { PCI_VENDOR_ID_MXIC, PCI_DEVICE_ID_MX98725,
+ "Macronix 98725 PMAC", 256, 0x0001ebef, HAS_MEDIA_TABLE, mxic_timer },
+ { 0x125B, 0x1400, "ASIX AX88140", 128, 0x0001fbff,
+ HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, tulip_timer },
+ {0, 0, 0, 0},
+};
+/* This matches the table above. */
+enum chips { DC21040=0, DC21041=1, DC21140=2, DC21142=3, DC21143=3,
+ LC82C168, MX98713, MX98715, MX98725};
+
+/* A full-duplex map for media types. */
+enum MediaIs {MediaIsFD = 1, MediaAlwaysFD=2, MediaIsMII=4, MediaIsFx=8,
+ MediaIs100=16};
+static const char media_cap[] =
+{0,0,0,16, 3,19,16,24, 27,4,7,5, 0,20,23,20 };
+/* 21041 transceiver register settings: 10-T, 10-2, AUI, 10-T, 10T-FD*/
+static u16 t21041_csr13[] = { 0xEF05, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
+static u16 t21041_csr14[] = { 0x7F3F, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
+static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+static u16 t21142_csr13[] = { 0x0001, 0x0009, 0x0009, 0x0000, 0x0001, };
+static u16 t21142_csr14[] = { 0xFFFF, 0x0705, 0x0705, 0x0000, 0x7F3D, };
+static u16 t21142_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+/* Offsets to the Command and Status Registers, "CSRs". All accesses
+ must be longword instructions and quadword aligned. */
+enum tulip_offsets {
+ CSR0=0, CSR1=0x08, CSR2=0x10, CSR3=0x18, CSR4=0x20, CSR5=0x28,
+ CSR6=0x30, CSR7=0x38, CSR8=0x40, CSR9=0x48, CSR10=0x50, CSR11=0x58,
+ CSR12=0x60, CSR13=0x68, CSR14=0x70, CSR15=0x78 };
+
+/* The bits in the CSR5 status registers, mostly interrupt sources. */
+enum status_bits {
+ TimerInt=0x800, TPLnkFail=0x1000, TPLnkPass=0x10,
+ NormalIntr=0x10000, AbnormalIntr=0x8000,
+ RxJabber=0x200, RxDied=0x100, RxNoBuf=0x80, RxIntr=0x40,
+ TxFIFOUnderflow=0x20, TxJabber=0x08, TxNoBuf=0x04, TxDied=0x02, TxIntr=0x01,
+};
+
+enum desc_status_bits {
+ DescOwned=0x80000000, RxDescFatalErr=0x8000, RxWholePkt=0x0300,
+};
+
+/* The Tulip Rx and Tx buffer descriptors. */
+struct tulip_rx_desc {
+ s32 status;
+ s32 length;
+ u32 buffer1, buffer2;
+};
+
+struct tulip_tx_desc {
+ s32 status;
+ s32 length;
+ u32 buffer1, buffer2; /* We use only buffer 1. */
+};
+
+struct medialeaf {
+ u8 type;
+ u8 media;
+ unsigned char *leafdata;
+};
+
+struct mediatable {
+ u16 defaultmedia;
+ u8 leafcount, csr12dir; /* General purpose pin directions. */
+ unsigned has_mii:1, has_nonmii:1;
+ struct medialeaf mleaf[0];
+};
+
+struct mediainfo {
+ struct mediainfo *next;
+ int info_type;
+ int index;
+ unsigned char *info;
+};
+
+struct tulip_private {
+ char devname[8]; /* Used only for kernel debugging. */
+ const char *product_name;
+ struct device *next_module;
+ struct tulip_rx_desc rx_ring[RX_RING_SIZE];
+ struct tulip_tx_desc tx_ring[TX_RING_SIZE];
+ /* The saved address of a sent-in-place packet/buffer, for skfree(). */
+ struct sk_buff* tx_skbuff[TX_RING_SIZE];
+ /* The addresses of receive-in-place skbuffs. */
+ struct sk_buff* rx_skbuff[RX_RING_SIZE];
+ char *rx_buffs; /* Address of temporary Rx buffers. */
+ u32 setup_frame[48]; /* Pseudo-Tx frame to init address table. */
+ int chip_id;
+ int revision;
+#if LINUX_VERSION_CODE > 0x20139
+ struct net_device_stats stats;
+#else
+ struct enet_statistics stats;
+#endif
+ struct timer_list timer; /* Media selection timer. */
+ int interrupt; /* In-interrupt flag. */
+#ifdef SMP_CHECK
+ int smp_proc_id; /* Which processor in IRQ handler. */
+#endif
+ unsigned int cur_rx, cur_tx; /* The next free ring entry */
+ unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
+ unsigned int tx_full:1; /* The Tx queue is full. */
+ unsigned int full_duplex:1; /* Full-duplex operation requested. */
+ unsigned int full_duplex_lock:1;
+ unsigned int fake_addr:1; /* Multiport board faked address. */
+ unsigned int default_port:4; /* Last dev->if_port value. */
+ unsigned int media2:4; /* Secondary monitored media port. */
+ unsigned int medialock:1; /* Don't sense media type. */
+ unsigned int mediasense:1; /* Media sensing in progress. */
+ unsigned int csr6; /* Current CSR6 control settings. */
+ unsigned char eeprom[128]; /* Serial EEPROM contents. */
+ u16 to_advertise; /* NWay capabilities advertised. */
+ u16 advertising[4];
+ signed char phys[4], mii_cnt; /* MII device addresses. */
+ struct mediatable *mtable;
+ int cur_index; /* Current media index. */
+ unsigned char pci_bus, pci_dev_fn;
+ int pad0, pad1; /* Used for 8-byte alignment */
+};
+
+static struct device *tulip_probe1(int pci_bus, int pci_devfn,
+ struct device *dev,
+ int chip_id, int options);
+static void parse_eeprom(struct device *dev);
+static int read_eeprom(long ioaddr, int location);
+static int mdio_read(struct device *dev, int phy_id, int location);
+static void mdio_write(struct device *dev, int phy_id, int location, int value);
+static void select_media(struct device *dev, int startup);
+static int tulip_open(struct device *dev);
+static void tulip_timer(unsigned long data);
+static void tulip_tx_timeout(struct device *dev);
+static void tulip_init_ring(struct device *dev);
+static int tulip_start_xmit(struct sk_buff *skb, struct device *dev);
+static int tulip_rx(struct device *dev);
+static void tulip_interrupt IRQ(int irq, void *dev_instance, struct pt_regs *regs);
+static int tulip_close(struct device *dev);
+static struct enet_statistics *tulip_get_stats(struct device *dev);
+#ifdef HAVE_PRIVATE_IOCTL
+static int private_ioctl(struct device *dev, struct ifreq *rq, int cmd);
+#endif
+#ifdef NEW_MULTICAST
+static void set_rx_mode(struct device *dev);
+#else
+static void set_rx_mode(struct device *dev, int num_addrs, void *addrs);
+#endif
+
+
+
+/* A list of all installed Tulip devices, for removing the driver module. */
+static struct device *root_tulip_dev = NULL;
+
+/* This 21040 probe no longer uses a large fixed contiguous Rx buffer region,
+ but now receives directly into full-sized skbuffs that are allocated
+ at open() time.
+ This allows the probe routine to use the old driver initialization
+ interface. */
+
+int tulip_probe(struct device *dev)
+{
+ int cards_found = 0;
+ static int pci_index = 0; /* Static, for multiple probe calls. */
+ unsigned char pci_bus, pci_device_fn;
+
+ /* Ideally we would detect all network cards in slot order. That would
+ be best done a central PCI probe dispatch, which wouldn't work
+ well with the current structure. So instead we detect just the
+ Tulip cards in slot order. */
+
+#if LINUX_VERSION_CODE >= 0x20155
+ if (! pci_present())
+ return -ENODEV;
+#else
+ if (! pcibios_present())
+ return -ENODEV;
+#endif
+ for (;pci_index < 0xff; pci_index++) {
+ u16 vendor, device, pci_command, new_command;
+ unsigned long pci_ioaddr = 0;
+ int chip_idx = 0;
+
+ if (pcibios_find_class
+ (PCI_CLASS_NETWORK_ETHERNET << 8,
+ reverse_probe ? 0xfe - pci_index : pci_index,
+ &pci_bus, &pci_device_fn) != PCIBIOS_SUCCESSFUL)
+ if (reverse_probe)
+ continue;
+ else
+ break;
+ pcibios_read_config_word(pci_bus, pci_device_fn,
+ PCI_VENDOR_ID, &vendor);
+ pcibios_read_config_word(pci_bus, pci_device_fn,
+ PCI_DEVICE_ID, &device);
+
+ for (chip_idx = 0; tulip_tbl[chip_idx].chip_name; chip_idx++)
+ if (vendor == tulip_tbl[chip_idx].vendor_id &&
+ device == tulip_tbl[chip_idx].device_id)
+ break;
+ if (tulip_tbl[chip_idx].chip_name == 0) {
+ if (vendor == PCI_VENDOR_ID_DEC ||
+ vendor == PCI_VENDOR_ID_LITEON)
+ printk(KERN_INFO "Unknown Tulip-style PCI ethernet chip type"
+ " %4.4x %4.4x"" detected: not configured.\n",
+ vendor, device);
+ continue;
+ }
+#if LINUX_VERSION_CODE >= 0x20155
+ pci_ioaddr = pci_find_slot(pci_bus, pci_device_fn)->base_address[0];
+#else
+ pcibios_read_config_dword(pci_bus, pci_device_fn, PCI_BASE_ADDRESS_0,
+ &pci_ioaddr);
+#endif
+ /* Remove I/O space marker in bit 0. */
+ pci_ioaddr &= ~3;
+
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "Found %s at I/O %#lx.\n",
+ tulip_tbl[chip_idx].chip_name, pci_ioaddr);
+
+ if (check_region(pci_ioaddr, tulip_tbl[chip_idx].io_size))
+ continue;
+
+ pcibios_read_config_word(pci_bus, pci_device_fn,
+ PCI_COMMAND, &pci_command);
+ new_command = pci_command | PCI_COMMAND_MASTER|PCI_COMMAND_IO;
+ if (pci_command != new_command) {
+ printk(KERN_INFO " The PCI BIOS has not enabled this"
+ " device! Updating PCI command %4.4x->%4.4x.\n",
+ pci_command, new_command);
+ pcibios_write_config_word(pci_bus, pci_device_fn,
+ PCI_COMMAND, new_command);
+ }
+
+ dev = tulip_probe1(pci_bus, pci_device_fn, dev, chip_idx, cards_found);
+
+ /* Get and check the bus-master and latency values. */
+ if (dev) {
+ unsigned char pci_latency;
+ pcibios_read_config_byte(pci_bus, pci_device_fn,
+ PCI_LATENCY_TIMER, &pci_latency);
+ if (pci_latency < 10) {
+ printk(KERN_INFO " PCI latency timer (CFLT) is "
+ "unreasonably low at %d. Setting to 64 clocks.\n",
+ pci_latency);
+ pcibios_write_config_byte(pci_bus, pci_device_fn,
+ PCI_LATENCY_TIMER, 64);
+ } else if (tulip_debug > 1)
+ printk(KERN_INFO " PCI latency timer (CFLT) is %#x, "
+ " PCI command is %4.4x.\n",
+ pci_latency, new_command);
+ /* Bring the 21143 out power-down mode. */
+ if (device == PCI_DEVICE_ID_DEC_TULIP_21142)
+ pcibios_write_config_dword(pci_bus, pci_device_fn,
+ 0x40, 0x40000000);
+ dev = 0;
+ cards_found++;
+ }
+ }
+
+ return cards_found ? 0 : -ENODEV;
+}
+
+static struct device *tulip_probe1(int pci_bus, int pci_device_fn,
+ struct device *dev,
+ int chip_id, int board_idx)
+{
+ static int did_version = 0; /* Already printed version info. */
+ struct tulip_private *tp;
+ long ioaddr;
+ int irq;
+ /* See note below on the multiport cards. */
+ static unsigned char last_phys_addr[6] = {0x00, 'L', 'i', 'n', 'u', 'x'};
+ static int last_irq = 0;
+ static int multiport_cnt = 0; /* For four-port boards w/one EEPROM */
+ int i;
+ unsigned short sum;
+
+ if (tulip_debug > 0 && did_version++ == 0)
+ printk(KERN_INFO "%s", version);
+
+ dev = init_etherdev(dev, 0);
+
+#if LINUX_VERSION_CODE >= 0x20155
+ irq = pci_find_slot(pci_bus, pci_device_fn)->irq;
+ ioaddr = pci_find_slot(pci_bus, pci_device_fn)->base_address[0];
+#else
+ {
+ u8 pci_irq_line;
+ u32 pci_ioaddr;
+ pcibios_read_config_byte(pci_bus, pci_device_fn,
+ PCI_INTERRUPT_LINE, &pci_irq_line);
+ pcibios_read_config_dword(pci_bus, pci_device_fn, PCI_BASE_ADDRESS_0,
+ &pci_ioaddr);
+ irq = pci_irq_line;
+ ioaddr = pci_ioaddr;
+ }
+#endif
+ /* Remove I/O space marker in bit 0. */
+ ioaddr &= ~3;
+
+ printk(KERN_INFO "%s: %s at %#3lx,",
+ dev->name, tulip_tbl[chip_id].chip_name, ioaddr);
+
+ /* Stop the chip's Tx and Rx processes. */
+ outl(inl(ioaddr + CSR6) & ~0x2002, ioaddr + CSR6);
+ /* Clear the missed-packet counter. */
+ (volatile int)inl(ioaddr + CSR8);
+
+ if (chip_id == DC21041) {
+ if (inl(ioaddr + CSR9) & 0x8000) {
+ printk(" 21040 compatible mode,");
+ chip_id = DC21040;
+ } else {
+ printk(" 21041 mode,");
+ }
+ }
+
+ /* The station address ROM is read byte serially. The register must
+ be polled, waiting for the value to be read bit serially from the
+ EEPROM.
+ */
+ sum = 0;
+ if (chip_id == DC21040) {
+ outl(0, ioaddr + CSR9); /* Reset the pointer with a dummy write. */
+ for (i = 0; i < 6; i++) {
+ int value, boguscnt = 100000;
+ do
+ value = inl(ioaddr + CSR9);
+ while (value < 0 && --boguscnt > 0);
+ dev->dev_addr[i] = value;
+ sum += value & 0xff;
+ }
+ } else if (chip_id == LC82C168) {
+ for (i = 0; i < 3; i++) {
+ int value, boguscnt = 100000;
+ outl(0x600 | i, ioaddr + 0x98);
+ do
+ value = inl(ioaddr + CSR9);
+ while (value < 0 && --boguscnt > 0);
+ ((u16*)dev->dev_addr)[i] = value;
+ sum += value & 0xffff;
+ }
+ } else { /* Must be a new chip, with a serial EEPROM interface. */
+ /* We read the whole EEPROM, and sort it out later. DEC has a
+ specification _Digital Semiconductor 21X4 Serial ROM Format_
+ but early vendor boards just put the address in the first six
+ EEPROM locations. */
+ unsigned char ee_data[128];
+ int sa_offset = 0;
+
+ for (i = 0; i < sizeof(ee_data)/2; i++)
+ ((u16 *)ee_data)[i] = read_eeprom(ioaddr, i);
+
+ /* Detect the simple EEPROM format by the duplicated station addr. */
+ for (i = 0; i < 8; i ++)
+ if (ee_data[i] != ee_data[16+i])
+ sa_offset = 20;
+ if (ee_data[0] == 0xff && ee_data[1] == 0xff && ee_data[2] == 0) {
+ sa_offset = 2; /* Grrr, damn Matrox boards. */
+ multiport_cnt = 4;
+ }
+ for (i = 0; i < 6; i ++) {
+ dev->dev_addr[i] = ee_data[i + sa_offset];
+ sum += ee_data[i + sa_offset];
+ }
+ }
+ /* Lite-On boards have the address byte-swapped. */
+ if (dev->dev_addr[0] == 0xA0 && dev->dev_addr[1] == 0x00)
+ for (i = 0; i < 6; i+=2) {
+ char tmp = dev->dev_addr[i];
+ dev->dev_addr[i] = dev->dev_addr[i+1];
+ dev->dev_addr[i+1] = tmp;
+ }
+ /* On the Zynx 315 Etherarray and other multiport boards only the
+ first Tulip has an EEPROM.
+ The addresses of the subsequent ports are derived from the first.
+ Many PCI BIOSes also incorrectly report the IRQ line, so we correct
+ that here as well. */
+ if (sum == 0 || sum == 6*0xff) {
+ printk(" EEPROM not present,");
+ for (i = 0; i < 5; i++)
+ dev->dev_addr[i] = last_phys_addr[i];
+ dev->dev_addr[i] = last_phys_addr[i] + 1;
+#if defined(__i386__) /* This BIOS bug doesn't exist on Alphas. */
+ irq = last_irq;
+#endif
+ }
+
+ for (i = 0; i < 6; i++)
+ printk(" %2.2x", last_phys_addr[i] = dev->dev_addr[i]);
+ printk(", IRQ %d.\n", irq);
+ last_irq = irq;
+
+ /* We do a request_region() only to register /proc/ioports info. */
+ /* Note that proper size is tulip_tbl[chip_id].chip_name, but... */
+ request_region(ioaddr, TULIP_TOTAL_SIZE, dev->name);
+
+ dev->base_addr = ioaddr;
+ dev->irq = irq;
+
+ /* Make certain the data structures are quadword aligned. */
+ tp = (void *)(((long)kmalloc(sizeof(*tp), GFP_KERNEL | GFP_DMA) + 7) & ~7);
+ memset(tp, 0, sizeof(*tp));
+ dev->priv = tp;
+
+ tp->next_module = root_tulip_dev;
+ root_tulip_dev = dev;
+
+ tp->pci_bus = pci_bus;
+ tp->pci_dev_fn = pci_device_fn;
+ tp->chip_id = chip_id;
+
+#ifdef TULIP_FULL_DUPLEX
+ tp->full_duplex = 1;
+ tp->full_duplex_lock = 1;
+#endif
+#ifdef TULIP_DEFAULT_MEDIA
+ tp->default_port = TULIP_DEFAULT_MEDIA;
+#endif
+#ifdef TULIP_NO_MEDIA_SWITCH
+ tp->medialock = 1;
+#endif
+
+ /* The lower four bits are the media type. */
+ if (board_idx >= 0 && board_idx < MAX_UNITS) {
+ tp->default_port = options[board_idx] & 15;
+ if ((options[board_idx] & 0x90) || full_duplex[board_idx] > 0)
+ tp->full_duplex = 1;
+ if (mtu[board_idx] > 0)
+ dev->mtu = mtu[board_idx];
+ }
+ if (dev->mem_start)
+ tp->default_port = dev->mem_start;
+ if (tp->default_port) {
+ tp->medialock = 1;
+ if (media_cap[tp->default_port] & MediaAlwaysFD)
+ tp->full_duplex = 1;
+ }
+ if (tp->full_duplex)
+ tp->full_duplex_lock = 1;
+
+ /* This is logically part of probe1(), but too complex to write inline. */
+ if (tulip_tbl[chip_id].flags & HAS_MEDIA_TABLE)
+ parse_eeprom(dev);
+
+ if (media_cap[tp->default_port] & MediaIsMII) {
+ u16 media2advert[] = { 0x20, 0x40, 0x03e0, 0x60, 0x80, 0x100, 0x200 };
+ tp->to_advertise = media2advert[tp->default_port - 9];
+ } else
+ tp->to_advertise = 0x03e1;
+
+ if ((tp->mtable && tp->mtable->has_mii) ||
+ ( ! tp->mtable && (tulip_tbl[tp->chip_id].flags & HAS_MII))) {
+ int phy, phy_idx;
+ /* Find the connected MII xcvrs.
+ Doing this in open() would allow detecting external xcvrs later,
+ but takes much time. */
+ for (phy = 0, phy_idx = 0; phy < 32 && phy_idx < sizeof(tp->phys);
+ phy++) {
+ int mii_status = mdio_read(dev, phy, 1);
+ if (mii_status != 0xffff && mii_status != 0x0000) {
+ int mii_reg0 = mdio_read(dev, phy, 0);
+ int reg4 = ((mii_status>>6) & tp->to_advertise) | 1;
+ tp->phys[phy_idx] = phy;
+ tp->advertising[phy_idx++] = reg4;
+ printk(KERN_INFO "%s: MII transceiver found at MDIO address "
+ "%d, config %4.4x status %4.4x.\n",
+ dev->name, phy, mii_reg0, mii_status);
+ if (1 || (media_cap[tp->default_port] & MediaIsMII)) {
+ printk(KERN_DEBUG "%s: Advertising %4.4x on PHY %d,"
+ " previously advertising %4.4x.\n",
+ dev->name, reg4, phy, mdio_read(dev, phy, 4));
+ mdio_write(dev, phy, 4, reg4);
+ }
+ /* Enable autonegotiation: some boards default to off. */
+ mdio_write(dev, phy, 0, mii_reg0 |
+ (tp->full_duplex ? 0x1100 : 0x1000) |
+ (media_cap[tp->default_port]&MediaIs100 ? 0x2000:0));
+ }
+ }
+ tp->mii_cnt = phy_idx;
+ if (tp->mtable && tp->mtable->has_mii && phy_idx == 0) {
+ printk(KERN_INFO "%s: ***WARNING***: No MII transceiver found!\n",
+ dev->name);
+ tp->phys[0] = 1;
+ }
+ }
+
+ /* The Tulip-specific entries in the device structure. */
+ dev->open = &tulip_open;
+ dev->hard_start_xmit = &tulip_start_xmit;
+ dev->stop = &tulip_close;
+ dev->get_stats = &tulip_get_stats;
+#ifdef HAVE_PRIVATE_IOCTL
+ dev->do_ioctl = &private_ioctl;
+#endif
+#ifdef HAVE_MULTICAST
+ dev->set_multicast_list = &set_rx_mode;
+#endif
+
+ /* Reset the xcvr interface and turn on heartbeat. */
+ switch (chip_id) {
+ case DC21041:
+ outl(0x00000000, ioaddr + CSR13);
+ outl(0xFFFFFFFF, ioaddr + CSR14);
+ outl(0x00000008, ioaddr + CSR15); /* Listen on AUI also. */
+ outl(inl(ioaddr + CSR6) | 0x0200, ioaddr + CSR6);
+ outl(0x0000EF05, ioaddr + CSR13);
+ break;
+ case DC21040:
+ outl(0x00000000, ioaddr + CSR13);
+ outl(0x00000004, ioaddr + CSR13);
+ break;
+ case DC21140: default:
+ if (tp->mtable)
+ outl(tp->mtable->csr12dir | 0x100, ioaddr + CSR12);
+ break;
+ case DC21142:
+ outl(0x82420200, ioaddr + CSR6);
+ outl(0x0001, ioaddr + CSR13);
+ outl(0x0003FFFF, ioaddr + CSR14);
+ outl(0x0008, ioaddr + CSR15);
+ outl(0x0001, ioaddr + CSR13);
+ outl(0x1301, ioaddr + CSR12); /* Start NWay. */
+ break;
+ case LC82C168:
+ if ( ! tp->mii_cnt) {
+ outl(0x00420000, ioaddr + CSR6);
+ outl(0x30, ioaddr + CSR12);
+ outl(0x0001F078, ioaddr + 0xB8);
+ outl(0x0201F078, ioaddr + 0xB8); /* Turn on autonegotiation. */
+ }
+ break;
+ case MX98713: case MX98715: case MX98725:
+ outl(0x00000000, ioaddr + CSR6);
+ outl(0x000711C0, ioaddr + CSR14); /* Turn on NWay. */
+ outl(0x00000001, ioaddr + CSR13);
+ break;
+ }
+
+ return dev;
+}
+
+/* Serial EEPROM section. */
+/* The main routine to parse the very complicated SROM structure.
+ Search www.digital.com for "21X4 SROM" to get details.
+ This code is very complex, and will require changes to support
+ additional cards, so I'll be verbose about what is going on.
+ */
+
+/* Known cards that have old-style EEPROMs. */
+static struct fixups {
+ char *name;
+ unsigned char addr0, addr1, addr2;
+ u16 newtable[32]; /* Max length below. */
+} eeprom_fixups[] = {
+ {"Asante", 0, 0, 0x94, {0x1e00, 0x0000, 0x0800, 0x0100, 0x018c,
+ 0x0000, 0x0000, 0xe078, 0x0001, 0x0050, 0x0018 }},
+ {"SMC9332DST", 0, 0, 0xC0, { 0x1e00, 0x0000, 0x0800, 0x021f,
+ 0x0000, 0x009E, /* 10baseT */
+ 0x0903, 0x006D, /* 100baseTx */ }},
+ {"Cogent EM100", 0, 0, 0x92, { 0x1e00, 0x0000, 0x0800, 0x033f,
+ 0x0107, 0x8021, /* 100baseFx */
+ 0x0108, 0x8021, /* 100baseFx-FD */
+ 0x0103, 0x006D, /* 100baseTx */ }},
+ {"Maxtech NX-110", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x0313,
+ 0x1001, 0x009E, /* 10base2, CSR12 0x10*/
+ 0x0000, 0x009E, /* 10baseT */
+ 0x0303, 0x006D, /* 100baseTx, CSR12 0x03 */ }},
+ {"Accton EN1207", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x031F,
+ 0x1B01, 0x0000, /* 10base2, CSR12 0x1B */
+ 0x1B03, 0x006D, /* 100baseTx, CSR12 0x1B */
+ 0x0B00, 0x009E, /* 10baseT, CSR12 0x0B */
+ }},
+ {0, 0, 0, 0, {}}};
+
+static const char * block_name[] = {"21140 non-MII", "21140 MII PHY",
+ "21142 Serial PHY", "21142 MII PHY", "21143 SYM PHY", "21143 reset method"};
+
+#define EEPROM_SIZE 128
+#if defined(__i386__)
+#define get_u16(ptr) (*(u16 *)(ptr))
+#else
+#define get_u16(ptr) (((u8*)(ptr))[0] + (((u8*)(ptr))[1]<<8))
+#endif
+
+static void parse_eeprom(struct device *dev)
+{
+ /* The last media info list parsed, for multiport boards. */
+ static struct mediatable *last_mediatable = NULL;
+ static unsigned char *last_ee_data = NULL;
+ static int controller_index = 0;
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+ unsigned char *ee_data = tp->eeprom;
+ int i;
+
+ tp->mtable = 0;
+ for (i = 0; i < EEPROM_SIZE/2; i++)
+ ((u16 *)ee_data)[i] = read_eeprom(ioaddr, i);
+
+ /* Detect an old-style (SA only) EEPROM layout:
+ memcmp(eedata, eedata+16, 8). */
+ for (i = 0; i < 8; i ++)
+ if (ee_data[i] != ee_data[16+i])
+ break;
+ if (i >= 8) {
+ if (ee_data[0] == 0xff) {
+ if (last_mediatable) {
+ controller_index++;
+ printk(KERN_INFO "%s: Controller %d of multiport board.\n",
+ dev->name, controller_index);
+ tp->mtable = last_mediatable;
+ ee_data = last_ee_data;
+ goto subsequent_board;
+ } else
+ printk(KERN_INFO "%s: Missing EEPROM, this interface may "
+ "not work correctly!\n",
+ dev->name);
+ return;
+ }
+ /* Do a fix-up based on the vendor half of the station address prefix. */
+ for (i = 0; eeprom_fixups[i].name; i++) {
+ if (dev->dev_addr[0] == eeprom_fixups[i].addr0
+ && dev->dev_addr[1] == eeprom_fixups[i].addr1
+ && dev->dev_addr[2] == eeprom_fixups[i].addr2) {
+ if (dev->dev_addr[2] == 0xE8 && ee_data[0x1a] == 0x55)
+ i++; /* An Accton EN1207, not an outlaw Maxtech. */
+ memcpy(ee_data + 26, eeprom_fixups[i].newtable,
+ sizeof(eeprom_fixups[i].newtable));
+ printk(KERN_INFO "%s: Old format EEPROM on '%s' board. Using"
+ " substitute media control info.\n",
+ dev->name, eeprom_fixups[i].name);
+ break;
+ }
+ }
+ if (eeprom_fixups[i].name == NULL) { /* No fixup found. */
+ printk(KERN_INFO "%s: Old style EEPROM -- no media selection information.\n",
+ dev->name);
+ return;
+ }
+ }
+ if (tulip_debug > 1) {
+ printk(KERN_DEBUG "read_eeprom:");
+ for (i = 0; i < 64; i++) {
+ printk("%s%4.4x", (i & 7) == 0 ? "\n" KERN_DEBUG : " ",
+ read_eeprom(ioaddr, i));
+ }
+ printk("\n");
+ }
+
+ controller_index = 0;
+ if (ee_data[19] > 1) { /* Multiport board. */
+ last_ee_data = ee_data;
+ }
+subsequent_board:
+
+ if (ee_data[27] == 0) { /* No valid media table. */
+ } else if (tp->chip_id == DC21041) {
+ unsigned char *p = (void *)ee_data + ee_data[27 + controller_index*3];
+ short media;
+ int count;
+
+ media = get_u16(p);
+ p += 2;
+ count = *p++;
+
+ printk(KERN_INFO "%s:21041 Media information at %d, default media "
+ "%4.4x (%s).\n", dev->name, ee_data[27], media,
+ media & 0x0800 ? "Autosense" : medianame[media & 15]);
+ for (i = 0; i < count; i++) {
+ unsigned char media_code = *p++;
+ u16 csrvals[3];
+ int idx;
+ for (idx = 0; idx < 3; idx++) {
+ csrvals[idx] = get_u16(p);
+ p += 2;
+ }
+ if (media_code & 0x40) {
+ printk(KERN_INFO "%s: 21041 media %2.2x (%s),"
+ " csr13 %4.4x csr14 %4.4x csr15 %4.4x.\n",
+ dev->name, media_code & 15, medianame[media_code & 15],
+ csrvals[0], csrvals[1], csrvals[2]);
+ } else
+ printk(KERN_INFO "%s: 21041 media #%d, %s.\n",
+ dev->name, media_code & 15, medianame[media_code & 15]);
+ }
+ } else {
+ unsigned char *p = (void *)ee_data + ee_data[27];
+ unsigned char csr12dir = 0;
+ int count;
+ struct mediatable *mtable;
+ u16 media = get_u16(p);
+
+ p += 2;
+ if (tulip_tbl[tp->chip_id].flags & CSR12_IN_SROM)
+ csr12dir = *p++;
+ count = *p++;
+ mtable = (struct mediatable *)
+ kmalloc(sizeof(struct mediatable) + count*sizeof(struct medialeaf),
+ GFP_KERNEL);
+ if (mtable == NULL)
+ return; /* Horrible, impossible failure. */
+ last_mediatable = tp->mtable = mtable;
+ mtable->defaultmedia = media;
+ mtable->leafcount = count;
+ mtable->csr12dir = csr12dir;
+ mtable->has_nonmii = mtable->has_mii = 0;
+
+ printk(KERN_INFO "%s: EEPROM default media type %s.\n", dev->name,
+ media & 0x0800 ? "Autosense" : medianame[media & 15]);
+ for (i = 0; i < count; i++) {
+ struct medialeaf *leaf = &mtable->mleaf[i];
+
+ if ((p[0] & 0x80) == 0) { /* 21140 Compact block. */
+ leaf->type = 0;
+ leaf->media = p[0] & 0x3f;
+ leaf->leafdata = p;
+ if ((p[2] & 0x61) == 0x01) /* Bogus, but Znyx boards do it. */
+ mtable->has_mii = 1;
+ p += 4;
+ } else {
+ leaf->type = p[1];
+ if (p[1] & 1) {
+ mtable->has_mii = 1;
+ leaf->media = 11;
+ } else {
+ mtable->has_nonmii = 1;
+ leaf->media = p[2] & 0x0f;
+ }
+ leaf->leafdata = p + 2;
+ p += (p[0] & 0x3f) + 1;
+ }
+ if (tulip_debug > 1 && leaf->media == 11) {
+ unsigned char *bp = leaf->leafdata;
+ printk(KERN_INFO "%s: MII interface PHY %d, setup/reset "
+ "sequences %d/%d long, capabilities %2.2x %2.2x.\n",
+ dev->name, bp[0], bp[1], bp[1 + bp[1]*2],
+ bp[5 + bp[2 + bp[1]*2]*2], bp[4 + bp[2 + bp[1]*2]*2]);
+ }
+ printk(KERN_INFO "%s: Index #%d - Media %s (#%d) described "
+ "by a %s (%d) block.\n",
+ dev->name, i, medianame[leaf->media], leaf->media,
+ block_name[leaf->type], leaf->type);
+ }
+ }
+}
+/* Reading a serial EEPROM is a "bit" grungy, but we work our way through:->.*/
+
+/* EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK 0x02 /* EEPROM shift clock. */
+#define EE_CS 0x01 /* EEPROM chip select. */
+#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */
+#define EE_WRITE_0 0x01
+#define EE_WRITE_1 0x05
+#define EE_DATA_READ 0x08 /* EEPROM chip data out. */
+#define EE_ENB (0x4800 | EE_CS)
+
+/* Delay between EEPROM clock transitions.
+ The 1.2 code is a "nasty" timing loop, but PC compatible machines are
+ *supposed* to delay an ISA-compatible period for the SLOW_DOWN_IO macro. */
+#ifdef _LINUX_DELAY_H
+#define eeprom_delay(nanosec) udelay((nanosec + 999)/1000)
+#else
+#define eeprom_delay(nanosec) do { int _i = 3; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0)
+#endif
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_WRITE_CMD (5 << 6)
+#define EE_READ_CMD (6 << 6)
+#define EE_ERASE_CMD (7 << 6)
+
+static int read_eeprom(long ioaddr, int location)
+{
+ int i;
+ unsigned short retval = 0;
+ long ee_addr = ioaddr + CSR9;
+ int read_cmd = location | EE_READ_CMD;
+
+ outl(EE_ENB & ~EE_CS, ee_addr);
+ outl(EE_ENB, ee_addr);
+
+ /* Shift the read command bits out. */
+ for (i = 10; i >= 0; i--) {
+ short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+ outl(EE_ENB | dataval, ee_addr);
+ eeprom_delay(100);
+ outl(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
+ eeprom_delay(150);
+ outl(EE_ENB | dataval, ee_addr); /* Finish EEPROM a clock tick. */
+ eeprom_delay(250);
+ }
+ outl(EE_ENB, ee_addr);
+
+ for (i = 16; i > 0; i--) {
+ outl(EE_ENB | EE_SHIFT_CLK, ee_addr);
+ eeprom_delay(100);
+ retval = (retval << 1) | ((inl(ee_addr) & EE_DATA_READ) ? 1 : 0);
+ outl(EE_ENB, ee_addr);
+ eeprom_delay(100);
+ }
+
+ /* Terminate the EEPROM access. */
+ outl(EE_ENB & ~EE_CS, ee_addr);
+ return retval;
+}
+
+/* MII transceiver control section.
+ Read and write the MII registers using software-generated serial
+ MDIO protocol. See the MII specifications or DP83840A data sheet
+ for details. */
+
+/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
+ met by back-to-back PCI I/O cycles, but we insert a delay to avoid
+ "overclocking" issues or future 66Mhz PCI. */
+#define mdio_delay() inl(mdio_addr)
+
+/* Read and write the MII registers using software-generated serial
+ MDIO protocol. It is just different enough from the EEPROM protocol
+ to not share code. The maxium data clock rate is 2.5 Mhz. */
+#define MDIO_SHIFT_CLK 0x10000
+#define MDIO_DATA_WRITE0 0x00000
+#define MDIO_DATA_WRITE1 0x20000
+#define MDIO_ENB 0x00000 /* Ignore the 0x02000 databook setting. */
+#define MDIO_ENB_IN 0x40000
+#define MDIO_DATA_READ 0x80000
+
+static int mdio_read(struct device *dev, int phy_id, int location)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ int i;
+ int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
+ int retval = 0;
+ long mdio_addr = dev->base_addr + CSR9;
+
+ if (tp->chip_id == LC82C168) {
+ long ioaddr = dev->base_addr;
+ int i = 1000;
+ outl(0x60020000 + (phy_id<<23) + (location<<18), ioaddr + 0xA0);
+ while (--i > 0)
+ if ( ! ((retval = inl(ioaddr + 0xA0)) & 0x80000000))
+ return retval & 0xffff;
+ return 0xffff;
+ }
+
+ /* Establish sync by sending at least 32 logic ones. */
+ for (i = 32; i >= 0; i--) {
+ outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Shift the read command bits out. */
+ for (i = 15; i >= 0; i--) {
+ int dataval = (read_cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
+
+ outl(MDIO_ENB | dataval, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Read the two transition, 16 data, and wire-idle bits. */
+ for (i = 19; i > 0; i--) {
+ outl(MDIO_ENB_IN, mdio_addr);
+ mdio_delay();
+ retval = (retval << 1) | ((inl(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
+ outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ return (retval>>1) & 0xffff;
+}
+
+static void mdio_write(struct device *dev, int phy_id, int location, int value)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ int i;
+ int cmd = (0x5002 << 16) | (phy_id << 23) | (location<<18) | value;
+ long mdio_addr = dev->base_addr + CSR9;
+
+ if (tp->chip_id == LC82C168) {
+ long ioaddr = dev->base_addr;
+ int i = 1000;
+ outl(cmd, ioaddr + 0xA0);
+ do
+ if ( ! (inl(ioaddr + 0xA0) & 0x80000000))
+ break;
+ while (--i > 0);
+ return;
+ }
+
+ /* Establish sync by sending 32 logic ones. */
+ for (i = 32; i >= 0; i--) {
+ outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Shift the command bits out. */
+ for (i = 31; i >= 0; i--) {
+ int dataval = (cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
+ outl(MDIO_ENB | dataval, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Clear out extra bits. */
+ for (i = 2; i > 0; i--) {
+ outl(MDIO_ENB_IN, mdio_addr);
+ mdio_delay();
+ outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
+ mdio_delay();
+ }
+ return;
+}
+
+
+static int
+tulip_open(struct device *dev)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+ int i = 0;
+
+ /* On some chip revs we must set the MII/SYM port before the reset!? */
+ if (tp->mii_cnt || (tp->mtable && tp->mtable->has_mii))
+ outl(0x00040000, ioaddr + CSR6);
+
+ /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
+ outl(0x00000001, ioaddr + CSR0);
+#ifdef _LINUX_DELAY_H
+ udelay(2);
+#else
+ SLOW_DOWN_IO;
+#endif
+ /* Deassert reset.
+ 486: Set 8 longword cache alignment, 8 longword burst.
+ 586: Set 16 longword cache alignment, no burst limit.
+ Cache alignment bits 15:14 Burst length 13:8
+ 0000 No alignment 0x00000000 unlimited 0800 8 longwords
+ 4000 8 longwords 0100 1 longword 1000 16 longwords
+ 8000 16 longwords 0200 2 longwords 2000 32 longwords
+ C000 32 longwords 0400 4 longwords
+ Wait the specified 50 PCI cycles after a reset by initializing
+ Tx and Rx queues and the address filter list. */
+#if defined(__alpha__)
+ /* ToDo: Alpha setting could be better. */
+ outl(0x01A00000 | 0xE000, ioaddr + CSR0);
+#elif defined(__powerpc__)
+ outl(0x01A00080 | 0x8000, ioaddr + CSR0);
+#elif defined(__i386__)
+#if defined(MODULE)
+ /* When a module we don't have 'x86' to check. */
+ outl(0x01A00000 | 0x4800, ioaddr + CSR0);
+#else
+#if (LINUX_VERSION_CODE > 0x2014c)
+#define x86 boot_cpu_data.x86
+#endif
+ outl(0x01A00000 | (x86 <= 4 ? 0x4800 : 0x8000), ioaddr + CSR0);
+ if (x86 <= 4)
+ printk(KERN_INFO "%s: This is a 386/486 PCI system, setting cache "
+ "alignment to %x.\n", dev->name,
+ 0x01A00000 | (x86 <= 4 ? 0x4800 : 0x8000));
+#endif
+#else
+ outl(0x01A00000 | 0x4800, ioaddr + CSR0);
+#warning Processor architecture undefined!
+#endif
+
+#ifdef SA_SHIRQ
+ if (request_irq(dev->irq, &tulip_interrupt, SA_SHIRQ, dev->name, dev)) {
+ return -EAGAIN;
+ }
+#else
+ if (irq2dev_map[dev->irq] != NULL
+ || (irq2dev_map[dev->irq] = dev) == NULL
+ || dev->irq == 0
+ || request_irq(dev->irq, &tulip_interrupt, 0,
+ tulip_tbl[tp->chip_id].chip_name)) {
+ return -EAGAIN;
+ }
+#endif
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: tulip_open() irq %d.\n", dev->name, dev->irq);
+
+ MOD_INC_USE_COUNT;
+
+ tulip_init_ring(dev);
+
+ /* This is set_rx_mode(), but without starting the transmitter. */
+ /* Fill the whole address filter table with our physical address. */
+ {
+ u16 *eaddrs = (u16 *)dev->dev_addr;
+ u32 *setup_frm = tp->setup_frame, i;
+
+ /* You must add the broadcast address when doing perfect filtering! */
+ *setup_frm++ = 0xffff;
+ *setup_frm++ = 0xffff;
+ *setup_frm++ = 0xffff;
+ /* Fill the rest of the accept table with our physical address. */
+ for (i = 1; i < 16; i++) {
+ *setup_frm++ = eaddrs[0];
+ *setup_frm++ = eaddrs[1];
+ *setup_frm++ = eaddrs[2];
+ }
+ /* Put the setup frame on the Tx list. */
+ tp->tx_ring[0].length = 0x08000000 | 192;
+ tp->tx_ring[0].buffer1 = virt_to_bus(tp->setup_frame);
+ tp->tx_ring[0].status = 0x80000000;
+
+ tp->cur_tx++;
+ }
+
+ outl(virt_to_bus(tp->rx_ring), ioaddr + CSR3);
+ outl(virt_to_bus(tp->tx_ring), ioaddr + CSR4);
+
+ if (dev->if_port == 0)
+ dev->if_port = tp->default_port;
+ if (tp->chip_id == DC21041 && dev->if_port > 4)
+ /* Invalid: Select initial TP, autosense, autonegotiate. */
+ dev->if_port = 4;
+
+ /* Allow selecting a default media. */
+ if (tp->mtable == NULL)
+ goto media_picked;
+ if (dev->if_port) {
+ int looking_for = media_cap[dev->if_port] & MediaIsMII ? 11 :
+ (dev->if_port == 12 ? 0 : dev->if_port);
+ for (i = 0; i < tp->mtable->leafcount; i++)
+ if (tp->mtable->mleaf[i].media == looking_for) {
+ printk(KERN_INFO "%s: Using user-specified media %s.\n",
+ dev->name, medianame[dev->if_port]);
+ goto media_picked;
+ }
+ }
+ if ((tp->mtable->defaultmedia & 0x0800) == 0)
+ for (i = 0; i < tp->mtable->leafcount; i++)
+ if (tp->mtable->mleaf[i].media == (tp->mtable->defaultmedia & 15)) {
+ printk(KERN_INFO "%s: Using EEPROM-set media %s.\n",
+ dev->name, medianame[tp->mtable->mleaf[i].media]);
+ goto media_picked;
+ }
+ /* Start sensing first non-full-duplex media. */
+ for (i = tp->mtable->leafcount - 1;
+ (media_cap[tp->mtable->mleaf[i].media] & MediaAlwaysFD) && i > 0; i--)
+ ;
+media_picked:
+
+ tp->csr6 = 0;
+ tp->cur_index = i;
+ if (dev->if_port == 0 && tp->chip_id == DC21142) {
+ tp->csr6 = 0x82420200;
+ outl(0x0003FFFF, ioaddr + CSR14);
+ outl(0x0008, ioaddr + CSR15);
+ outl(0x0001, ioaddr + CSR13);
+ outl(0x1301, ioaddr + CSR12);
+ } else if (tp->chip_id == LC82C168 && tp->mii_cnt && ! tp->medialock) {
+ dev->if_port = 11;
+ tp->csr6 = 0x816C0000 | (tp->full_duplex ? 0x0200 : 0);
+ outl(0x0001, ioaddr + CSR15);
+ } else
+ select_media(dev, 1);
+
+ /* Start the chip's Tx to process setup frame. */
+ outl(tp->csr6, ioaddr + CSR6);
+ outl(tp->csr6 | 0x2000, ioaddr + CSR6);
+
+ dev->tbusy = 0;
+ tp->interrupt = 0;
+ dev->start = 1;
+
+ /* Enable interrupts by setting the interrupt mask. */
+ outl(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5);
+ outl(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ outl(0, ioaddr + CSR2); /* Rx poll demand */
+
+ if (tulip_debug > 2) {
+ printk(KERN_DEBUG "%s: Done tulip_open(), CSR0 %8.8x, CSR5 %8.8x CSR6 %8.8x.\n",
+ dev->name, inl(ioaddr + CSR0), inl(ioaddr + CSR5),
+ inl(ioaddr + CSR6));
+ }
+ /* Set the timer to switch to check for link beat and perhaps switch
+ to an alternate media type. */
+ init_timer(&tp->timer);
+ tp->timer.expires = RUN_AT(5*HZ);
+ tp->timer.data = (unsigned long)dev;
+ tp->timer.function = tulip_tbl[tp->chip_id].media_timer;
+ add_timer(&tp->timer);
+
+ return 0;
+}
+
+/* Set up the transceiver control registers for the selected media type. */
+static void select_media(struct device *dev, int startup)
+{
+ long ioaddr = dev->base_addr;
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ struct mediatable *mtable = tp->mtable;
+ u32 new_csr6;
+ int check_mii =0, i;
+
+ if (mtable) {
+ struct medialeaf *mleaf = &mtable->mleaf[tp->cur_index];
+ unsigned char *p = mleaf->leafdata;
+ switch (mleaf->type) {
+ case 0: /* 21140 non-MII xcvr. */
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Using a 21140 non-MII transceiver"
+ " with control setting %2.2x.\n",
+ dev->name, p[1]);
+ dev->if_port = p[0];
+ if (startup)
+ outl(mtable->csr12dir | 0x100, ioaddr + CSR12);
+ outl(p[1], ioaddr + CSR12);
+ new_csr6 = 0x02000000 | ((p[2] & 0x71) << 18);
+ break;
+ case 2: case 4: {
+ u16 setup[3];
+ for (i = 0; i < 3; i++)
+ setup[i] = get_u16(&p[i*2 + 1]);
+
+ dev->if_port = p[0] & 15;
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: 21142 non-MII %s transceiver control %4.4x/%4.4x.\n",
+ dev->name, medianame[dev->if_port], setup[0], setup[1]);
+ if (p[0] & 0x40) { /* SIA (CSR13-15) setup values are provided. */
+ outl(0, ioaddr + CSR13);
+ outl(setup[1], ioaddr + CSR14);
+ outl(setup[2], ioaddr + CSR15);
+ outl(setup[0], ioaddr + CSR13);
+ for (i = 0; i < 3; i++) /* Re-fill setup[] */
+ setup[i] = get_u16(&p[i*2 + 7]);
+ } else if (dev->if_port <= 4) {
+ outl(0, ioaddr + CSR13);
+ outl(t21142_csr14[dev->if_port], ioaddr + CSR14);
+ outl(t21142_csr15[dev->if_port], ioaddr + CSR15);
+ outl(t21142_csr13[dev->if_port], ioaddr + CSR13);
+ } else {
+ outl(0, ioaddr + CSR14);
+ outl(8, ioaddr + CSR15);
+ outl(0, ioaddr + CSR13);
+ }
+ outl(setup[0]<<16, ioaddr + CSR15); /* Direction */
+ outl(setup[1]<<16, ioaddr + CSR15); /* Data */
+ if (mleaf->type == 4)
+ new_csr6 = 0x82020000 | ((setup[2] & 0x71) << 18);
+ else
+ new_csr6 = 0x82420000;
+ break;
+ }
+ case 1: case 3: {
+ int phy_num = p[0];
+ int init_length = p[1];
+ u16 *misc_info;
+ u16 to_advertise;
+
+ dev->if_port = 11;
+ check_mii = 1;
+ new_csr6 = 0x020E0000;
+ if (mleaf->type == 3) { /* 21142 */
+ u16 *init_sequence = (u16*)(p+2);
+ u16 *reset_sequence = &((u16*)(p+3))[init_length];
+ int reset_length = p[2 + init_length*2];
+ misc_info = reset_sequence + reset_length;
+ if (startup)
+ for (i = 0; i < reset_length; i++)
+ outl(get_u16(&reset_sequence[i]) << 16, ioaddr + CSR15);
+ for (i = 0; i < init_length; i++)
+ outl(get_u16(&init_sequence[i]) << 16, ioaddr + CSR15);
+ } else {
+ u8 *init_sequence = p + 2;
+ u8 *reset_sequence = p + 3 + init_length;
+ int reset_length = p[2 + init_length];
+ misc_info = (u16*)(reset_sequence + reset_length);
+ if (startup) {
+ outl(mtable->csr12dir | 0x100, ioaddr + CSR12);
+ for (i = 0; i < reset_length; i++)
+ outl(reset_sequence[i], ioaddr + CSR12);
+ }
+ for (i = 0; i < init_length; i++)
+ outl(init_sequence[i], ioaddr + CSR12);
+ }
+ to_advertise = (get_u16(&misc_info[1]) & tp->to_advertise) | 1;
+ tp->advertising[phy_num] = to_advertise;
+ if (tulip_debug > 1 || 1)
+ printk(KERN_DEBUG "%s: Advertising %4.4x on PHY %d (%d).\n",
+ dev->name, to_advertise, phy_num, tp->phys[phy_num]);
+ /* Bogus: put in by a committee? */
+ mdio_write(dev, tp->phys[phy_num], 4, to_advertise);
+ break;
+ }
+ default:
+ new_csr6 = 0x020E0000;
+ }
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Using media type %s, CSR12 is %2.2x.\n",
+ dev->name, medianame[dev->if_port],
+ inl(ioaddr + CSR12) & 0xff);
+ } else if (tp->chip_id == DC21041) {
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: 21041 using media %s, CSR12 is %4.4x.\n",
+ dev->name, medianame[dev->if_port & 15],
+ inl(ioaddr + CSR12) & 0xffff);
+ outl(0x00000000, ioaddr + CSR13); /* Reset the serial interface */
+ outl(t21041_csr14[dev->if_port], ioaddr + CSR14);
+ outl(t21041_csr15[dev->if_port], ioaddr + CSR15);
+ outl(t21041_csr13[dev->if_port], ioaddr + CSR13);
+ new_csr6 = 0x80020000;
+ } else if (tp->chip_id == LC82C168) {
+ if (startup && ! tp->medialock)
+ dev->if_port = tp->mii_cnt ? 11 : 0;
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: PNIC PHY status is %3.3x, CSR12 %4.4x,"
+ " media %s.\n",
+ dev->name, inl(ioaddr + 0xB8), inl(ioaddr + CSR12),
+ medianame[dev->if_port]);
+ if (tp->mii_cnt) {
+ new_csr6 = 0x812C0000;
+ outl(0x0001, ioaddr + CSR15);
+ outl(0x0201B07A, ioaddr + 0xB8);
+ } else if (startup) {
+ /* Start with 10mbps to do autonegotiation. */
+ outl(0x32, ioaddr + CSR12);
+ new_csr6 = 0x00420000;
+ outl(0x0001B078, ioaddr + 0xB8);
+ outl(0x0201B078, ioaddr + 0xB8);
+ } else if (dev->if_port == 3 || dev->if_port == 5) {
+ outl(0x33, ioaddr + CSR12);
+ new_csr6 = 0x01860000;
+ if (startup)
+ outl(0x0201F868, ioaddr + 0xB8); /* Trigger autonegotiation. */
+ else
+ outl(0x1F868, ioaddr + 0xB8);
+ } else {
+ outl(0x32, ioaddr + CSR12);
+ new_csr6 = 0x00420000;
+ outl(0x1F078, ioaddr + 0xB8);
+ }
+ } else if (tp->chip_id == DC21040) { /* 21040 */
+ /* Turn on the xcvr interface. */
+ int csr12 = inl(ioaddr + CSR12);
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: 21040 media type is %s, CSR12 is %2.2x.\n",
+ dev->name, dev->if_port ? "AUI" : "10baseT", csr12);
+ new_csr6 = (dev->if_port ? 0x01860000 : 0x00420000);
+ /* Set the full duplux match frame. */
+ outl(FULL_DUPLEX_MAGIC, ioaddr + CSR11);
+ outl(0x00000000, ioaddr + CSR13); /* Reset the serial interface */
+ outl(dev->if_port ? 0x0000000C : 0x00000004, ioaddr + CSR13);
+ } else { /* Unknown chip type with no media table. */
+ if (tp->default_port == 0)
+ if (tp->mii_cnt) {
+ dev->if_port = 11;
+ } else
+ dev->if_port = 3;
+ if (media_cap[dev->if_port] & MediaIsMII) {
+ new_csr6 = 0x020E0000;
+ } else if (media_cap[dev->if_port] & MediaIsFx) {
+ new_csr6 = 0x028600000;
+ } else
+ new_csr6 = 0x038600000;
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: No media description table, assuming "
+ "%s transceiver, CSR12 %2.2x.\n",
+ dev->name, medianame[dev->if_port],
+ inl(ioaddr + CSR12));
+ }
+
+ tp->csr6 = new_csr6 | (tp->csr6 & 0xfdff) | (tp->full_duplex ? 0x0200 : 0);
+ return;
+}
+
+static void tulip_timer(unsigned long data)
+{
+ struct device *dev = (struct device *)data;
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+ u32 csr12 = inl(ioaddr + CSR12);
+ int next_tick = 0;
+
+ if (tulip_debug > 3) {
+ printk(KERN_DEBUG "%s: Media selection tick, status %8.8x mode %8.8x "
+ "SIA %8.8x %8.8x %8.8x %8.8x.\n",
+ dev->name, inl(ioaddr + CSR5), inl(ioaddr + CSR6),
+ csr12, inl(ioaddr + CSR13),
+ inl(ioaddr + CSR14), inl(ioaddr + CSR15));
+ }
+ switch (tp->chip_id) {
+ case DC21040:
+ if (csr12 & 0x0002) { /* Network error */
+ printk(KERN_INFO "%s: No 10baseT link beat found, switching to %s media.\n",
+ dev->name, dev->if_port ? "10baseT" : "AUI");
+ dev->if_port ^= 1;
+ outl(dev->if_port ? 0x0000000C : 0x00000004, ioaddr + CSR13);
+ dev->trans_start = jiffies;
+ }
+ break;
+ case DC21041:
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: 21041 media tick CSR12 %8.8x.\n",
+ dev->name, csr12);
+ switch (dev->if_port) {
+ case 0: case 3: case 4:
+ if (csr12 & 0x0004) { /*LnkFail */
+ /* 10baseT is dead. Check for activity on alternate port. */
+ tp->mediasense = 1;
+ if (csr12 & 0x0200)
+ dev->if_port = 2;
+ else
+ dev->if_port = 1;
+ printk(KERN_INFO "%s: No 21041 10baseT link beat, Media switched to %s.\n",
+ dev->name, medianame[dev->if_port]);
+ outl(0, ioaddr + CSR13); /* Reset */
+ outl(t21041_csr14[dev->if_port], ioaddr + CSR14);
+ outl(t21041_csr15[dev->if_port], ioaddr + CSR15);
+ outl(t21041_csr13[dev->if_port], ioaddr + CSR13);
+ next_tick = 10*HZ; /* 2.4 sec. */
+ } else
+ next_tick = 30*HZ;
+ break;
+ case 1: /* 10base2 */
+ case 2: /* AUI */
+ if (csr12 & 0x0100) {
+ next_tick = (30*HZ); /* 30 sec. */
+ tp->mediasense = 0;
+ } else if ((csr12 & 0x0004) == 0) {
+ printk(KERN_INFO "%s: 21041 media switched to 10baseT.\n", dev->name);
+ dev->if_port = 0;
+ select_media(dev, 0);
+ next_tick = (24*HZ)/10; /* 2.4 sec. */
+ } else if (tp->mediasense || (csr12 & 0x0002)) {
+ dev->if_port = 3 - dev->if_port; /* Swap ports. */
+ select_media(dev, 0);
+ next_tick = 20*HZ;
+ } else {
+ next_tick = 20*HZ;
+ }
+ break;
+ }
+ break;
+ case DC21140: case DC21142: case MX98713: default: {
+ struct medialeaf *mleaf;
+ unsigned char *p;
+ if (tp->mtable == NULL) { /* No EEPROM info, use generic code. */
+ /* Not much that can be done.
+ Assume this a generic MII or SYM transceiver. */
+ next_tick = 60*HZ;
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: network media monitor CSR6 %8.8x "
+ "CSR12 0x%2.2x.\n",
+ dev->name, inl(ioaddr + CSR6), csr12 & 0xff);
+ break;
+ }
+ mleaf = &tp->mtable->mleaf[tp->cur_index];
+ p = mleaf->leafdata;
+ switch (mleaf->type) {
+ case 0: case 4: {
+ /* Type 0 serial or 4 SYM transceiver. Check the link beat bit. */
+ int offset = mleaf->type == 4 ? 5 : 2;
+ s8 bitnum = p[offset];
+ if (p[offset+1] & 0x80) {
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG"%s: Transceiver monitor tick "
+ "CSR12=%#2.2x, no media sense.\n",
+ dev->name, csr12);
+ if (mleaf->type == 4) {
+ if (mleaf->media == 3 && (csr12 & 0x02))
+ goto select_next_media;
+ }
+ break;
+ }
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Transceiver monitor tick: CSR12=%#2.2x"
+ " bit %d is %d, expecting %d.\n",
+ dev->name, csr12, (bitnum >> 1) & 7,
+ (csr12 & (1 << ((bitnum >> 1) & 7))) != 0,
+ (bitnum >= 0));
+ /* Check that the specified bit has the proper value. */
+ if ((bitnum < 0) !=
+ ((csr12 & (1 << ((bitnum >> 1) & 7))) != 0)) {
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name,
+ medianame[mleaf->media]);
+ if ((p[2] & 0x61) == 0x01) /* Bogus Znyx board. */
+ goto actually_mii;
+ break;
+ }
+ if (tp->medialock)
+ break;
+ select_next_media:
+ if (--tp->cur_index < 0) {
+ /* We start again, but should instead look for default. */
+ tp->cur_index = tp->mtable->leafcount - 1;
+ }
+ dev->if_port = tp->mtable->mleaf[tp->cur_index].media;
+ if (media_cap[dev->if_port] & MediaIsFD)
+ goto select_next_media; /* Skip FD entries. */
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: No link beat on media %s,"
+ " trying transceiver type %s.\n",
+ dev->name, medianame[mleaf->media & 15],
+ medianame[tp->mtable->mleaf[tp->cur_index].media]);
+ select_media(dev, 0);
+ /* Restart the transmit process. */
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ next_tick = (24*HZ)/10;
+ break;
+ }
+ case 1: case 3: { /* 21140, 21142 MII */
+ int mii_reg1, mii_reg5;
+ actually_mii:
+ mii_reg1 = mdio_read(dev, tp->phys[0], 1);
+ mii_reg5 = mdio_read(dev, tp->phys[0], 5);
+ if (tulip_debug > 1)
+ printk(KERN_INFO "%s: MII status %4.4x, Link partner report "
+ "%4.4x, CSR12 %2.2x, %cD.\n",
+ dev->name, mii_reg1, mii_reg5, csr12,
+ tp->full_duplex ? 'F' : 'H');
+ if (mii_reg1 != 0xffff && (mii_reg1 & 0x0004) == 0) {
+ int new_reg1 = mdio_read(dev, tp->phys[0], 1);
+ if ((new_reg1 & 0x0004) == 0) {
+ printk(KERN_INFO "%s: No link beat on the MII interface,"
+ " status then %4.4x now %4.4x.\n",
+ dev->name, mii_reg1, new_reg1);
+ if (tp->mtable && tp->mtable->has_nonmii)
+ goto select_next_media;
+ }
+ }
+ if (mii_reg5 == 0xffff || mii_reg5 == 0x0000)
+ ; /* No MII device or no link partner report */
+ else if (tp->full_duplex_lock)
+ ;
+ else {
+ int negotiated = mii_reg5 & tp->advertising[0];
+ int duplex = ((negotiated & 0x0100) != 0
+ || (negotiated & 0x00C0) == 0x0040);
+ /* 100baseTx-FD or 10T-FD, but not 100-HD */
+ if (tp->full_duplex != duplex) {
+ tp->full_duplex = duplex;
+ if (tp->full_duplex)
+ tp->csr6 |= 0x0200;
+ else
+ tp->csr6 &= ~0x0200;
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ if (tulip_debug > 0) /* Gurppp, should be >1 */
+ printk(KERN_INFO "%s: Setting %s-duplex based on MII"
+ " Xcvr #%d parter capability of %4.4x.\n",
+ dev->name, tp->full_duplex ? "full" : "half",
+ tp->phys[0], mii_reg5);
+ }
+ }
+ next_tick = 60*HZ;
+ break;
+ }
+ case 2: /* 21142 serial block has no link beat. */
+ default:
+ break;
+ }
+ }
+ break;
+ }
+ if (next_tick) {
+ tp->timer.expires = RUN_AT(next_tick);
+ add_timer(&tp->timer);
+ }
+}
+
+/* Handle the 21143 uniquely: do autoselect with NWay, not the EEPROM list
+ of available transceivers. */
+static void t21142_timer(unsigned long data)
+{
+ struct device *dev = (struct device *)data;
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+ int csr12 = inl(ioaddr + CSR12);
+ int next_tick = 60*HZ;
+ int new_csr6 = 0;
+
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: 21142 negotiation status %8.8x, %s.\n",
+ dev->name, csr12, medianame[dev->if_port]);
+ if (dev->if_port == 3) {
+ if (csr12 & 2) { /* No 100mbps link beat, revert to 10mbps. */
+ new_csr6 = 0x82420200;
+ outl(new_csr6, ioaddr + CSR6);
+ outl(0x0000, ioaddr + CSR13);
+ outl(0x0003FFFF, ioaddr + CSR14);
+ outl(0x0008, ioaddr + CSR15);
+ outl(0x0001, ioaddr + CSR13);
+ outl(0x1301, ioaddr + CSR12); /* Start NWay. */
+ }
+ } else if ((csr12 & 0x7000) != 0x5000) {
+ /* Negotiation failed. Search media types. */
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: 21142 negotiation failed, status %8.8x.\n",
+ dev->name, csr12);
+ if (!(csr12 & 4)) { /* 10mbps link beat good. */
+ new_csr6 = 0x82420000;
+ dev->if_port = 0;
+ outl(0, ioaddr + CSR13);
+ outl(0x0003FFFF, ioaddr + CSR14);
+ outl(t21142_csr15[dev->if_port], ioaddr + CSR15);
+ outl(t21142_csr13[dev->if_port], ioaddr + CSR13);
+ } else if (csr12 & 0x100) {
+ new_csr6 = 0x82420200;
+ dev->if_port = 2;
+ outl(0, ioaddr + CSR13);
+ outl(0x0003FFFF, ioaddr + CSR14);
+ outl(0x0008, ioaddr + CSR15);
+ outl(0x0001, ioaddr + CSR13);
+ } else {
+ /* Select 100mbps port to check for link beat. */
+ new_csr6 = 0x83860000;
+ dev->if_port = 3;
+ outl(0, ioaddr + CSR13);
+ outl(0x0003FF7F, ioaddr + CSR14);
+ outl(8, ioaddr + CSR15);
+ outl(1, ioaddr + CSR13);
+ }
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: Testing new 21142 media %s.\n",
+ dev->name, medianame[dev->if_port]);
+ if (new_csr6 != (tp->csr6 & ~0x00D5)) {
+ tp->csr6 &= 0x00D5;
+ tp->csr6 |= new_csr6;
+ outl(0x0301, ioaddr + CSR12);
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ }
+ }
+ tp->timer.expires = RUN_AT(next_tick);
+ add_timer(&tp->timer);
+}
+
+static void t21142_lnk_change( struct device *dev)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+ int csr12 = inl(ioaddr + CSR12);
+
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: 21142 link status interrupt %8.8x, CSR5 %x.\n",
+ dev->name, csr12, inl(ioaddr + CSR5));
+
+ if ((csr12 & 0x7000) == 0x5000) {
+ if (csr12 & 0x01800000) {
+ /* Switch to 100mbps mode. */
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ if (csr12 & 0x01000000) {
+ dev->if_port = 5;
+ tp->csr6 = 0x83860200;
+ } else {
+ dev->if_port = 3;
+ tp->csr6 = 0x83860000;
+ }
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ } /* Else 10baseT-FD is handled automatically. */
+ } else if (dev->if_port == 3) {
+ if (!(csr12 & 2))
+ printk(KERN_INFO"%s: 21142 100baseTx link beat good.\n",
+ dev->name);
+ else
+ dev->if_port = 0;
+ } else if (dev->if_port == 0) {
+ if (!(csr12 & 4))
+ printk(KERN_INFO"%s: 21142 10baseT link beat good.\n",
+ dev->name);
+ } else if (!(csr12 & 4)) { /* 10mbps link beat good. */
+ printk(KERN_INFO"%s: 21142 10mpbs sensed media.\n",
+ dev->name);
+ dev->if_port = 0;
+ } else { /* 100mbps link beat good. */
+ printk(KERN_INFO"%s: 21142 100baseTx sensed media.\n",
+ dev->name);
+ dev->if_port = 3;
+ tp->csr6 = 0x83860000;
+ outl(0x0003FF7F, ioaddr + CSR14);
+ outl(0x0301, ioaddr + CSR12);
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ }
+}
+
+
+static void mxic_timer(unsigned long data)
+{
+ struct device *dev = (struct device *)data;
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+ int next_tick = 60*HZ;
+
+ if (tulip_debug > 3) {
+ printk(KERN_INFO"%s: MXIC negotiation status %8.8x.\n", dev->name,
+ inl(ioaddr + CSR12));
+ }
+ if (next_tick) {
+ tp->timer.expires = RUN_AT(next_tick);
+ add_timer(&tp->timer);
+ }
+}
+
+static void pnic_timer(unsigned long data)
+{
+ struct device *dev = (struct device *)data;
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+ int csr12 = inl(ioaddr + CSR12);
+ int next_tick = 60*HZ;
+ int new_csr6 = tp->csr6 & ~0x40C40200;
+
+ if (media_cap[dev->if_port] & MediaIsMII) {
+ int negotiated = mdio_read(dev, tp->phys[0], 5) & tp->advertising[0];
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: LC82C168 negotiated capability %8.8x, "
+ "CSR5 %8.8x.\n",
+ dev->name, negotiated, inl(ioaddr + CSR5));
+
+ if (negotiated & 0x0380) /* 10 vs 100mbps */
+ new_csr6 |= 0x812E0000;
+ else
+ new_csr6 |= 0x816E0000;
+ if (((negotiated & 0x0300) == 0x0100) /* Duplex */
+ || (negotiated & 0x00C0) == 0x0040
+ || tp->full_duplex_lock) {
+ tp->full_duplex = 1;
+ new_csr6 |= 0x0200;
+ }
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: LC82C168 MII PHY status %4.4x, Link "
+ "partner report %4.4x, csr6 %8.8x/%8.8x.\n",
+ dev->name, mdio_read(dev, tp->phys[0], 1), negotiated,
+ tp->csr6, inl(ioaddr + CSR6));
+ } else {
+ int phy_reg = inl(ioaddr + 0xB8);
+ int csr5 = inl(ioaddr + CSR5);
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: LC82C168 phy status %8.8x, CSR5 %8.8x.\n",
+ dev->name, phy_reg, csr5);
+
+ if (phy_reg & 0x04000000) { /* Remote link fault */
+ /*outl(0x0201F078, ioaddr + 0xB8);*/
+ next_tick = 3*HZ;
+ }
+ if (inl(ioaddr + CSR5) & TPLnkFail) { /* 100baseTx link beat */
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: %s link beat failed, CSR12 %4.4x, "
+ "CSR5 %8.8x, PHY %3.3x.\n",
+ dev->name, medianame[dev->if_port], csr12,
+ inl(ioaddr + CSR5), inl(ioaddr + 0xB8));
+ if (tp->medialock) {
+ } else if (dev->if_port == 0) {
+ dev->if_port = 3;
+ outl(0x33, ioaddr + CSR12);
+ new_csr6 = 0x01860000;
+ outl(0x1F868, ioaddr + 0xB8);
+ } else {
+ dev->if_port = 0;
+ outl(0x32, ioaddr + CSR12);
+ new_csr6 = 0x00420000;
+ outl(0x1F078, ioaddr + 0xB8);
+ }
+ new_csr6 |= (tp->csr6 & 0xfdff);
+ next_tick = 3*HZ;
+ } else
+ new_csr6 = tp->csr6;
+ if (tp->full_duplex_lock || (phy_reg & 0x30000000) != 0) {
+ tp->full_duplex = 1;
+ new_csr6 |= 0x00000200;
+ }
+ }
+ if (tp->csr6 != new_csr6) {
+ tp->csr6 = new_csr6;
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6); /* Restart Tx */
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ dev->trans_start = jiffies;
+ if (tulip_debug > 0) /* Gurppp, should be >1 */
+ printk(KERN_INFO "%s: Changing PNIC configuration to %s-duplex, "
+ "CSR6 %8.8x.\n",
+ dev->name, tp->full_duplex ? "full" : "half", new_csr6);
+ }
+ tp->timer.expires = RUN_AT(next_tick);
+ add_timer(&tp->timer);
+}
+
+static void tulip_tx_timeout(struct device *dev)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+
+ if (media_cap[dev->if_port] & MediaIsMII) {
+ /* Do nothing -- the media monitor should handle this. */
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: Transmit timeout using MII device.\n",
+ dev->name);
+ dev->trans_start = jiffies;
+ return;
+ } else if (tp->chip_id == DC21040) {
+ if (inl(ioaddr + CSR12) & 0x0002) {
+ printk(KERN_INFO "%s: transmit timed out, switching to %s media.\n",
+ dev->name, dev->if_port ? "10baseT" : "AUI");
+ dev->if_port ^= 1;
+ outl(dev->if_port ? 0x0000000C : 0x00000004, ioaddr + CSR13);
+ }
+ dev->trans_start = jiffies;
+ return;
+ } else if (tp->chip_id == DC21041) {
+ u32 csr12 = inl(ioaddr + CSR12);
+
+ printk(KERN_WARNING "%s: 21041 transmit timed out, status %8.8x, CSR12 %8.8x,"
+ " CSR13 %8.8x, CSR14 %8.8x, resetting...\n",
+ dev->name, inl(ioaddr + CSR5), csr12,
+ inl(ioaddr + CSR13), inl(ioaddr + CSR14));
+ tp->mediasense = 1;
+ if (dev->if_port == 1 || dev->if_port == 2)
+ if (csr12 & 0x0004) {
+ dev->if_port = 2 - dev->if_port;
+ } else
+ dev->if_port = 0;
+ else
+ dev->if_port = 1;
+ select_media(dev, 0);
+ tp->stats.tx_errors++;
+ dev->trans_start = jiffies;
+ return;
+ } else if (tp->chip_id == DC21140 || tp->chip_id == DC21142
+ || tp->chip_id == MX98713) {
+ /* Stop the transmit process. */
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ printk(KERN_WARNING "%s: 21140 transmit timed out, status %8.8x, "
+ "SIA %8.8x %8.8x %8.8x %8.8x, resetting...\n",
+ dev->name, inl(ioaddr + CSR5), inl(ioaddr + CSR12),
+ inl(ioaddr + CSR13), inl(ioaddr + CSR14), inl(ioaddr + CSR15));
+ if (tp->mtable) {
+ if (--tp->cur_index < 0) {
+ /* We start again, but should instead look for default. */
+ tp->cur_index = tp->mtable->leafcount - 1;
+ }
+ select_media(dev, 0);
+ printk(KERN_WARNING "%s: transmit timed out, switching to %s media.\n",
+ dev->name, dev->if_port ? "100baseTx" : "10baseT");
+ }
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ tp->stats.tx_errors++;
+ dev->trans_start = jiffies;
+ return;
+ } else
+ printk(KERN_WARNING "%s: transmit timed out, status %8.8x, CSR12 %8.8x,"
+ " resetting...\n",
+ dev->name, inl(ioaddr + CSR5), inl(ioaddr + CSR12));
+#ifdef way_too_many_messages
+ printk(" Rx ring %8.8x: ", (int)tp->rx_ring);
+ for (i = 0; i < RX_RING_SIZE; i++)
+ printk(" %8.8x", (unsigned int)tp->rx_ring[i].status);
+ printk("\n Tx ring %8.8x: ", (int)tp->tx_ring);
+ for (i = 0; i < TX_RING_SIZE; i++)
+ printk(" %8.8x", (unsigned int)tp->tx_ring[i].status);
+ printk("\n");
+#endif
+
+ /* Perhaps we should reinitialize the hardware here. */
+ dev->if_port = 0;
+ /* Stop and restart the chip's Tx processes . */
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ /* Trigger an immediate transmit demand. */
+ outl(0, ioaddr + CSR1);
+
+ dev->trans_start = jiffies;
+ tp->stats.tx_errors++;
+ return;
+}
+
+
+/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
+static void
+tulip_init_ring(struct device *dev)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ int i;
+
+ tp->tx_full = 0;
+ tp->cur_rx = tp->cur_tx = 0;
+ tp->dirty_rx = tp->dirty_tx = 0;
+
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ tp->rx_ring[i].status = 0x80000000; /* Owned by Tulip chip */
+ tp->rx_ring[i].length = PKT_BUF_SZ;
+ {
+ /* Note the receive buffer must be longword aligned.
+ dev_alloc_skb() provides 16 byte alignment. But do *not*
+ use skb_reserve() to align the IP header! */
+ struct sk_buff *skb;
+ skb = DEV_ALLOC_SKB(PKT_BUF_SZ);
+ tp->rx_skbuff[i] = skb;
+ if (skb == NULL)
+ break; /* Bad news! */
+ skb->dev = dev; /* Mark as being used by this device. */
+#if LINUX_VERSION_CODE > 0x10300
+ tp->rx_ring[i].buffer1 = virt_to_bus(skb->tail);
+#else
+ tp->rx_ring[i].buffer1 = virt_to_bus(skb->data);
+#endif
+ }
+ tp->rx_ring[i].buffer2 = virt_to_bus(&tp->rx_ring[i+1]);
+ }
+ /* Mark the last entry as wrapping the ring. */
+ tp->rx_ring[i-1].length = PKT_BUF_SZ | 0x02000000;
+ tp->rx_ring[i-1].buffer2 = virt_to_bus(&tp->rx_ring[0]);
+
+ /* The Tx buffer descriptor is filled in as needed, but we
+ do need to clear the ownership bit. */
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ tp->tx_skbuff[i] = 0;
+ tp->tx_ring[i].status = 0x00000000;
+ tp->tx_ring[i].buffer2 = virt_to_bus(&tp->tx_ring[i+1]);
+ }
+ tp->tx_ring[i-1].buffer2 = virt_to_bus(&tp->tx_ring[0]);
+}
+
+static int
+tulip_start_xmit(struct sk_buff *skb, struct device *dev)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ int entry;
+ u32 flag;
+
+ /* Block a timer-based transmit from overlapping. This could better be
+ done with atomic_swap(1, dev->tbusy), but set_bit() works as well. */
+ if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) {
+ if (jiffies - dev->trans_start < TX_TIMEOUT)
+ return 1;
+ tulip_tx_timeout(dev);
+ return 1;
+ }
+
+ /* Caution: the write order is important here, set the base address
+ with the "ownership" bits last. */
+
+ /* Calculate the next Tx descriptor entry. */
+ entry = tp->cur_tx % TX_RING_SIZE;
+
+ tp->tx_skbuff[entry] = skb;
+ tp->tx_ring[entry].buffer1 = virt_to_bus(skb->data);
+
+ if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE/2) {/* Typical path */
+ flag = 0x60000000; /* No interrupt */
+ dev->tbusy = 0;
+ } else if (tp->cur_tx - tp->dirty_tx == TX_RING_SIZE/2) {
+ flag = 0xe0000000; /* Tx-done intr. */
+ dev->tbusy = 0;
+ } else if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE - 2) {
+ flag = 0x60000000; /* No Tx-done intr. */
+ dev->tbusy = 0;
+ } else {
+ /* Leave room for set_rx_mode() to fill entries. */
+ flag = 0xe0000000; /* Tx-done intr. */
+ tp->tx_full = 1;
+ }
+ if (entry == TX_RING_SIZE-1)
+ flag |= 0xe2000000;
+
+ tp->tx_ring[entry].length = skb->len | flag;
+ tp->tx_ring[entry].status = 0x80000000; /* Pass ownership to the chip. */
+ tp->cur_tx++;
+ /* Trigger an immediate transmit demand. */
+ outl(0, dev->base_addr + CSR1);
+
+ dev->trans_start = jiffies;
+
+ return 0;
+}
+
+/* The interrupt handler does all of the Rx thread work and cleans up
+ after the Tx thread. */
+static void tulip_interrupt IRQ(int irq, void *dev_instance, struct pt_regs *regs)
+{
+#ifdef SA_SHIRQ /* Use the now-standard shared IRQ implementation. */
+ struct device *dev = (struct device *)dev_instance;
+#else
+ struct device *dev = (struct device *)(irq2dev_map[irq]);
+#endif
+
+ struct tulip_private *tp;
+ long ioaddr;
+ int csr5, work_budget = max_interrupt_work;
+
+ if (dev == NULL) {
+ printk (KERN_ERR" tulip_interrupt(): irq %d for unknown device.\n",
+ irq);
+ return;
+ }
+
+ ioaddr = dev->base_addr;
+ tp = (struct tulip_private *)dev->priv;
+ if (test_and_set_bit(0, (void*)&tp->interrupt)) {
+#ifdef SMP_CHECK
+ printk(KERN_ERR "%s: Re-entering the interrupt handler with proc %d,"
+ " proc %d already handling.\n", dev->name,
+ tp->smp_proc_id, hard_smp_processor_id());
+#else
+ printk(KERN_ERR "%s: Re-entering the interrupt handler.\n", dev->name);
+#endif
+ return;
+ }
+ dev->interrupt = 1;
+#ifdef SMP_CHECK
+ tp->smp_proc_id = hard_smp_processor_id();
+#endif
+
+ do {
+ csr5 = inl(ioaddr + CSR5);
+ /* Acknowledge all of the current interrupt sources ASAP. */
+ outl(csr5 & 0x0001ffff, ioaddr + CSR5);
+
+ if (tulip_debug > 4)
+ printk(KERN_DEBUG "%s: interrupt csr5=%#8.8x new csr5=%#8.8x.\n",
+ dev->name, csr5, inl(dev->base_addr + CSR5));
+
+ if ((csr5 & (NormalIntr|AbnormalIntr)) == 0)
+ break;
+
+ if (csr5 & (RxIntr | RxNoBuf))
+ work_budget -= tulip_rx(dev);
+
+ if (csr5 & (TxNoBuf | TxDied | TxIntr)) {
+ unsigned int dirty_tx;
+
+ for (dirty_tx = tp->dirty_tx; tp->cur_tx - dirty_tx > 0;
+ dirty_tx++) {
+ int entry = dirty_tx % TX_RING_SIZE;
+ int status = tp->tx_ring[entry].status;
+
+ if (status < 0)
+ break; /* It still hasn't been Txed */
+ /* Check for Rx filter setup frames. */
+ if (tp->tx_skbuff[entry] == NULL)
+ continue;
+
+ if (status & 0x8000) {
+ /* There was an major error, log it. */
+#ifndef final_version
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
+ dev->name, status);
+#endif
+ tp->stats.tx_errors++;
+ if (status & 0x4104) tp->stats.tx_aborted_errors++;
+ if (status & 0x0C00) tp->stats.tx_carrier_errors++;
+ if (status & 0x0200) tp->stats.tx_window_errors++;
+ if (status & 0x0002) tp->stats.tx_fifo_errors++;
+ if ((status & 0x0080) && tp->full_duplex == 0)
+ tp->stats.tx_heartbeat_errors++;
+#ifdef ETHER_STATS
+ if (status & 0x0100) tp->stats.collisions16++;
+#endif
+ } else {
+#ifdef ETHER_STATS
+ if (status & 0x0001) tp->stats.tx_deferred++;
+#endif
+#if LINUX_VERSION_CODE > 0x20127
+ tp->stats.tx_bytes += tp->tx_ring[entry].length & 0x7ff;
+#endif
+ tp->stats.collisions += (status >> 3) & 15;
+ tp->stats.tx_packets++;
+ }
+
+ /* Free the original skb. */
+#if (LINUX_VERSION_CODE > 0x20155)
+ dev_kfree_skb(tp->tx_skbuff[entry]);
+#else
+ dev_kfree_skb(tp->tx_skbuff[entry], FREE_WRITE);
+#endif
+ tp->tx_skbuff[entry] = 0;
+ }
+
+#ifndef final_version
+ if (tp->cur_tx - dirty_tx > TX_RING_SIZE) {
+ printk(KERN_ERR "%s: Out-of-sync dirty pointer, %d vs. %d, full=%d.\n",
+ dev->name, dirty_tx, tp->cur_tx, tp->tx_full);
+ dirty_tx += TX_RING_SIZE;
+ }
+#endif
+
+ if (tp->tx_full && dev->tbusy
+ && tp->cur_tx - dirty_tx < TX_RING_SIZE - 2) {
+ /* The ring is no longer full, clear tbusy. */
+ tp->tx_full = 0;
+ dev->tbusy = 0;
+ mark_bh(NET_BH);
+ }
+
+ tp->dirty_tx = dirty_tx;
+ if (csr5 & TxDied) {
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: The transmitter stopped!"
+ " CSR5 is %x, CSR6 %x.\n",
+ dev->name, csr5, inl(ioaddr + CSR6));
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ }
+ }
+
+ /* Log errors. */
+ if (csr5 & AbnormalIntr) { /* Abnormal error summary bit. */
+ if (csr5 & TxJabber) tp->stats.tx_errors++;
+ if (csr5 & TxFIFOUnderflow) {
+ if ((tp->csr6 & 0xC000) != 0xC000)
+ tp->csr6 += 0x4000; /* Bump up the Tx threshold */
+ else
+ tp->csr6 |= 0x00200000; /* Store-n-forward. */
+ /* Restart the transmit process. */
+ outl(tp->csr6 | 0x0002, ioaddr + CSR6);
+ outl(tp->csr6 | 0x2002, ioaddr + CSR6);
+ }
+ if (csr5 & RxDied) { /* Missed a Rx frame. */
+ tp->stats.rx_errors++;
+ tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+ }
+ if (csr5 & TimerInt) {
+ printk(KERN_ERR "%s: Something Wicked happened! %8.8x.\n",
+ dev->name, csr5);
+ /* Hmmmmm, it's not clear what to do here. */
+ }
+ if (csr5 & (TPLnkPass | TPLnkFail | 0x08000000)
+ && tp->chip_id == DC21142) {
+ if (tulip_debug > 1)
+ printk(KERN_INFO"%s: 21142 link change, CSR5 = %8.8x.\n",
+ dev->name, csr5);
+ t21142_lnk_change(dev);
+ }
+ /* Clear all error sources, included undocumented ones! */
+ outl(0x0800f7ba, ioaddr + CSR5);
+ }
+ if (--work_budget < 0) {
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: Too much work at interrupt, "
+ "csr5=0x%8.8x.\n", dev->name, csr5);
+ /* Acknowledge all interrupt sources. */
+ outl(0x8001ffff, ioaddr + CSR5);
+#ifdef notdef
+ /* Clear all but standard interrupt sources. */
+ outl((~csr5) & 0x0001ebef, ioaddr + CSR7);
+#endif
+ break;
+ }
+ } while (1);
+
+ if (tulip_debug > 3)
+ printk(KERN_DEBUG "%s: exiting interrupt, csr5=%#4.4x.\n",
+ dev->name, inl(ioaddr + CSR5));
+
+ dev->interrupt = 0;
+ clear_bit(0, (void*)&tp->interrupt);
+ return;
+}
+
+static int
+tulip_rx(struct device *dev)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ int entry = tp->cur_rx % RX_RING_SIZE;
+ int rx_work_limit = tp->dirty_rx + RX_RING_SIZE - tp->cur_rx;
+ int work_done = 0;
+
+ if (tulip_debug > 4)
+ printk(KERN_DEBUG " In tulip_rx(), entry %d %8.8x.\n", entry,
+ tp->rx_ring[entry].status);
+ /* If we own the next entry, it's a new packet. Send it up. */
+ while (tp->rx_ring[entry].status >= 0) {
+ s32 status = tp->rx_ring[entry].status;
+
+ if (--rx_work_limit < 0)
+ break;
+ if ((status & 0x0300) != 0x0300) {
+ if ((status & 0xffff) != 0x7fff) { /* Ingore earlier buffers. */
+ if (tulip_debug > 1)
+ printk(KERN_WARNING "%s: Oversized Ethernet frame spanned "
+ "multiple buffers, status %8.8x!\n",
+ dev->name, status);
+ tp->stats.rx_length_errors++;
+ }
+ } else if (status & 0x8000) {
+ /* There was a fatal error. */
+ if (tulip_debug > 2)
+ printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
+ dev->name, status);
+ tp->stats.rx_errors++; /* end of a packet.*/
+ if (status & 0x0890) tp->stats.rx_length_errors++;
+ if (status & 0x0004) tp->stats.rx_frame_errors++;
+ if (status & 0x0002) tp->stats.rx_crc_errors++;
+ if (status & 0x0001) tp->stats.rx_fifo_errors++;
+ } else {
+ /* Omit the four octet CRC from the length. */
+ short pkt_len = (status >> 16) - 4;
+ struct sk_buff *skb;
+
+ /* Check if the packet is long enough to just accept without
+ copying to a properly sized skbuff. */
+ if (pkt_len < rx_copybreak
+ && (skb = DEV_ALLOC_SKB(pkt_len+2)) != NULL) {
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* 16 byte align the IP header */
+#if LINUX_VERSION_CODE < 0x10300
+ memcpy(skb->data, tp->rx_ring[entry].buffer1, pkt_len);
+#elif LINUX_VERSION_CODE < 0x20200 || defined(__alpha__)
+ memcpy(skb_put(skb, pkt_len),
+ bus_to_virt(tp->rx_ring[entry].buffer1), pkt_len);
+#else
+ eth_copy_and_sum(skb, bus_to_virt(tp->rx_ring[entry].buffer1),
+ pkt_len, 0);
+ skb_put(skb, pkt_len);
+#endif
+ work_done++;
+ } else { /* Pass up the skb already on the Rx ring. */
+ skb = tp->rx_skbuff[entry];
+ tp->rx_skbuff[entry] = NULL;
+#ifndef final_version
+ {
+ void *temp = skb_put(skb, pkt_len);
+ if (bus_to_virt(tp->rx_ring[entry].buffer1) != temp)
+ printk(KERN_ERR "%s: Internal consistency error! The "
+ "skbuff addresses do not match in tulip_rx:"
+ " %p vs. %p / %p.\n", dev->name,
+ bus_to_virt(tp->rx_ring[entry].buffer1),
+ skb->head, temp);
+ }
+#else
+ skb_put(skb, pkt_len);
+#endif
+ }
+#if LINUX_VERSION_CODE > 0x10300
+ skb->protocol = eth_type_trans(skb, dev);
+#else
+ skb->len = pkt_len;
+#endif
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ tp->stats.rx_packets++;
+#if LINUX_VERSION_CODE > 0x20127
+ tp->stats.rx_bytes += pkt_len;
+#endif
+ }
+ entry = (++tp->cur_rx) % RX_RING_SIZE;
+ }
+
+ /* Refill the Rx ring buffers. */
+ for (; tp->cur_rx - tp->dirty_rx > 0; tp->dirty_rx++) {
+ entry = tp->dirty_rx % RX_RING_SIZE;
+ if (tp->rx_skbuff[entry] == NULL) {
+ struct sk_buff *skb;
+ skb = tp->rx_skbuff[entry] = DEV_ALLOC_SKB(PKT_BUF_SZ);
+ if (skb == NULL)
+ break;
+ skb->dev = dev; /* Mark as being used by this device. */
+#if LINUX_VERSION_CODE > 0x10300
+ tp->rx_ring[entry].buffer1 = virt_to_bus(skb->tail);
+#else
+ tp->rx_ring[entry].buffer1 = virt_to_bus(skb->data);
+#endif
+ work_done++;
+ }
+ tp->rx_ring[entry].status = 0x80000000;
+ }
+
+ return work_done;
+}
+
+static int
+tulip_close(struct device *dev)
+{
+ long ioaddr = dev->base_addr;
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ int i;
+
+ dev->start = 0;
+ dev->tbusy = 1;
+
+ if (tulip_debug > 1)
+ printk(KERN_DEBUG "%s: Shutting down ethercard, status was %2.2x.\n",
+ dev->name, inl(ioaddr + CSR5));
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ outl(0x00000000, ioaddr + CSR7);
+ /* Stop the chip's Tx and Rx processes. */
+ outl(inl(ioaddr + CSR6) & ~0x2002, ioaddr + CSR6);
+ /* 21040 -- Leave the card in 10baseT state. */
+ if (tp->chip_id == DC21040)
+ outl(0x00000004, ioaddr + CSR13);
+
+ tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+
+ del_timer(&tp->timer);
+
+#ifdef SA_SHIRQ
+ free_irq(dev->irq, dev);
+#else
+ free_irq(dev->irq);
+ irq2dev_map[dev->irq] = 0;
+#endif
+
+ /* Free all the skbuffs in the Rx queue. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ struct sk_buff *skb = tp->rx_skbuff[i];
+ tp->rx_skbuff[i] = 0;
+ tp->rx_ring[i].status = 0; /* Not owned by Tulip chip. */
+ tp->rx_ring[i].length = 0;
+ tp->rx_ring[i].buffer1 = 0xBADF00D0; /* An invalid address. */
+ if (skb) {
+#if LINUX_VERSION_CODE < 0x20100
+ skb->free = 1;
+#endif
+#if (LINUX_VERSION_CODE > 0x20155)
+ dev_kfree_skb(skb);
+#else
+ dev_kfree_skb(skb, FREE_WRITE);
+#endif
+ }
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ if (tp->tx_skbuff[i])
+#if (LINUX_VERSION_CODE > 0x20155)
+ dev_kfree_skb(tp->tx_skbuff[i]);
+#else
+ dev_kfree_skb(tp->tx_skbuff[i], FREE_WRITE);
+#endif
+ tp->tx_skbuff[i] = 0;
+ }
+
+
+ MOD_DEC_USE_COUNT;
+
+ return 0;
+}
+
+static struct enet_statistics *
+tulip_get_stats(struct device *dev)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+
+ if (dev->start)
+ tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
+
+ return &tp->stats;
+}
+
+#ifdef HAVE_PRIVATE_IOCTL
+/* Provide ioctl() calls to examine the MII xcvr state. */
+static int private_ioctl(struct device *dev, struct ifreq *rq, int cmd)
+{
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+ long ioaddr = dev->base_addr;
+ u16 *data = (u16 *)&rq->ifr_data;
+ int phy = tp->phys[0] & 0x1f;
+ long flags;
+
+ switch(cmd) {
+ case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */
+ if (tp->mtable && tp->mtable->has_mii)
+ data[0] = phy;
+ else if (tp->chip_id == DC21142)
+ data[0] = 32;
+ else
+ return -ENODEV;
+ return 0;
+ case SIOCDEVPRIVATE+1: /* Read the specified MII register. */
+ if (data[0] == 32) { /* 21142 pseudo-MII */
+ int csr12 = inl(ioaddr + CSR12);
+ int csr14 = inl(ioaddr + CSR14);
+ switch (data[1]) {
+ case 0: {
+ data[3] = ((csr14<<13)&0x4000) + ((csr14<<5)&0x1000);
+ break; }
+ case 1:
+ data[3] = 0x7848 + ((csr12&0x7000) == 0x5000 ? 0x20 : 0)
+ + (csr12&0x06 ? 0x04 : 0);
+ break;
+ case 4: {
+ int csr14 = inl(ioaddr + CSR14);
+ data[3] = ((csr14>>9)&0x0380) + ((csr14>>1)&0x20) + 1;
+ break;
+ }
+ case 5: data[3] = inl(ioaddr + CSR12) >> 16; break;
+ default: data[3] = 0; break;
+ }
+ } else {
+ save_flags(flags);
+ cli();
+ data[3] = mdio_read(dev, data[0] & 0x1f, data[1] & 0x1f);
+ restore_flags(flags);
+ }
+ return 0;
+ case SIOCDEVPRIVATE+2: /* Write the specified MII register */
+ if (!suser())
+ return -EPERM;
+ if (data[0] == 32) { /* 21142 pseudo-MII */
+ } else {
+ save_flags(flags);
+ cli();
+ mdio_write(dev, data[0] & 0x1f, data[1] & 0x1f, data[2]);
+ restore_flags(flags);
+ }
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return -EOPNOTSUPP;
+}
+#endif /* HAVE_PRIVATE_IOCTL */
+
+/* Set or clear the multicast filter for this adaptor.
+ Note that we only use exclusion around actually queueing the
+ new frame, not around filling tp->setup_frame. This is non-deterministic
+ when re-entered but still correct. */
+
+/* The little-endian AUTODIN32 ethernet CRC calculation.
+ N.B. Do not use for bulk data, use a table-based routine instead.
+ This is common code and should be moved to net/core/crc.c */
+static unsigned const ethernet_polynomial_le = 0xedb88320U;
+static inline unsigned ether_crc_le(int length, unsigned char *data)
+{
+ unsigned int crc = 0xffffffff; /* Initial value. */
+ while(--length >= 0) {
+ unsigned char current_octet = *data++;
+ int bit;
+ for (bit = 8; --bit >= 0; current_octet >>= 1) {
+ if ((crc ^ current_octet) & 1) {
+ crc >>= 1;
+ crc ^= ethernet_polynomial_le;
+ } else
+ crc >>= 1;
+ }
+ }
+ return crc;
+}
+
+#ifdef NEW_MULTICAST
+static void set_rx_mode(struct device *dev)
+#else
+static void set_rx_mode(struct device *dev, int num_addrs, void *addrs)
+#endif
+{
+ long ioaddr = dev->base_addr;
+ int csr6 = inl(ioaddr + CSR6) & ~0x00D5;
+ struct tulip_private *tp = (struct tulip_private *)dev->priv;
+
+ tp->csr6 &= ~0x00D5;
+ if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
+ outl(csr6 | 0x00C0, ioaddr + CSR6);
+ /* Unconditionally log net taps. */
+ printk(KERN_INFO "%s: Promiscuous mode enabled.\n", dev->name);
+ tp->csr6 |= 0xC0;
+ } else if ((dev->mc_count > 1000) || (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ outl(csr6 | 0x0080, ioaddr + CSR6);
+ tp->csr6 |= 0x80;
+ } else {
+ u32 *setup_frm = tp->setup_frame;
+ struct dev_mc_list *mclist;
+ u16 *eaddrs;
+ u32 tx_flags;
+ int i;
+
+ if (dev->mc_count > 14) { /* Must use a multicast hash table. */
+ u16 hash_table[32];
+ memset(hash_table, 0, sizeof(hash_table));
+ /* This should work on big-endian machines as well. */
+ for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
+ i++, mclist = mclist->next)
+ set_bit(ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x1ff,
+ hash_table);
+ /* Copy the hash table to the setup frame.
+ NOTE that only the LOW SHORTWORD of setup_frame[] is valid! */
+ for (i = 0; i < 32; i++)
+ *setup_frm++ = hash_table[i];
+ setup_frm += 7;
+ tx_flags = 0x08400000 | 192;
+ /* Too clever: i > 15 for fall-though. */
+ } else {
+ /* We have <= 15 addresses so we can use the wonderful
+ 16 address perfect filtering of the Tulip. */
+ for (i = 0, mclist = dev->mc_list; i < dev->mc_count;
+ i++, mclist = mclist->next) {
+ /* Note that only the low shortword of setup_frame[] is valid!
+ This code may require tweaking for non-x86 architectures! */
+ eaddrs = (u16 *)mclist->dmi_addr;
+ *setup_frm++ = *eaddrs++;
+ *setup_frm++ = *eaddrs++;
+ *setup_frm++ = *eaddrs++;
+ }
+ /* Fill the rest of the table with our physical address.
+ Once again, only the low shortword or setup_frame[] is valid! */
+ *setup_frm++ = 0xffff;
+ *setup_frm++ = 0xffff;
+ *setup_frm++ = 0xffff;
+ tx_flags = 0x08000000 | 192;
+ }
+ eaddrs = (u16 *)dev->dev_addr;
+ do {
+ *setup_frm++ = eaddrs[0];
+ *setup_frm++ = eaddrs[1];
+ *setup_frm++ = eaddrs[2];
+ } while (++i < 15);
+ /* Now add this frame to the Tx list. */
+ if (tp->cur_tx - tp->dirty_tx > TX_RING_SIZE - 2) {
+ /* Same setup recently queued, we need not add it. */
+ } else {
+ unsigned long flags;
+ unsigned int entry, dummy = 0;
+
+ save_flags(flags); cli();
+ entry = tp->cur_tx++ % TX_RING_SIZE;
+
+ if (entry != 0) {
+ /* Avoid a chip errata by prefixing a dummy entry. */
+ tp->tx_skbuff[entry] = 0;
+ tp->tx_ring[entry].length =
+ (entry == TX_RING_SIZE-1) ? 0x02000000 : 0;
+ tp->tx_ring[entry].buffer1 = 0;
+ /* race with chip, set DescOwned later */
+ dummy = entry;
+ entry = tp->cur_tx++ % TX_RING_SIZE;
+ }
+
+ tp->tx_skbuff[entry] = 0;
+ /* Put the setup frame on the Tx list. */
+ if (entry == TX_RING_SIZE-1)
+ tx_flags |= 0x02000000; /* Wrap ring. */
+ tp->tx_ring[entry].length = tx_flags;
+ tp->tx_ring[entry].buffer1 = virt_to_bus(tp->setup_frame);
+ tp->tx_ring[entry].status = 0x80000000;
+ if (tp->cur_tx - tp->dirty_tx >= TX_RING_SIZE - 2) {
+ dev->tbusy = 1;
+ tp->tx_full = 1;
+ }
+ if (dummy >= 0)
+ tp->tx_ring[dummy].status = DescOwned;
+ restore_flags(flags);
+ /* Trigger an immediate transmit demand. */
+ outl(0, ioaddr + CSR1);
+ }
+ outl(csr6 | 0x0000, ioaddr + CSR6);
+ }
+}
+
+#ifdef CARDBUS
+
+#include <pcmcia/driver_ops.h>
+
+static dev_node_t *tulip_attach(dev_locator_t *loc)
+{
+ u16 dev_id;
+ u32 io;
+ u8 bus, devfn;
+ struct device *dev;
+
+ if (loc->bus != LOC_PCI) return NULL;
+ bus = loc->b.pci.bus; devfn = loc->b.pci.devfn;
+ printk(KERN_INFO "tulip_attach(bus %d, function %d)\n", bus, devfn);
+ pcibios_read_config_dword(bus, devfn, PCI_BASE_ADDRESS_0, &io);
+ pcibios_read_config_word(bus, devfn, PCI_DEVICE_ID, &dev_id);
+ io &= ~3;
+ dev = tulip_probe1(bus, devfn, NULL, DC21142, -1);
+ if (dev) {
+ dev_node_t *node = kmalloc(sizeof(dev_node_t), GFP_KERNEL);
+ strcpy(node->dev_name, dev->name);
+ node->major = node->minor = 0;
+ node->next = NULL;
+ MOD_INC_USE_COUNT;
+ return node;
+ }
+ return NULL;
+}
+
+static void tulip_detach(dev_node_t *node)
+{
+ struct device **devp, **next;
+ printk(KERN_INFO "tulip_detach(%s)\n", node->dev_name);
+ for (devp = &root_tulip_dev; *devp; devp = next) {
+ next = &((struct tulip_private *)(*devp)->priv)->next_module;
+ if (strcmp((*devp)->name, node->dev_name) == 0) break;
+ }
+ if (*devp) {
+ unregister_netdev(*devp);
+ kfree(*devp);
+ *devp = *next;
+ kfree(node);
+ MOD_DEC_USE_COUNT;
+ }
+}
+
+struct driver_operations tulip_ops = {
+ "tulip_cb", tulip_attach, NULL, NULL, tulip_detach
+};
+
+#endif /* Cardbus support */
+
+
+#ifdef MODULE
+#if LINUX_VERSION_CODE > 0x20118
+MODULE_AUTHOR("Donald Becker <becker@cesdis.gsfc.nasa.gov>");
+MODULE_DESCRIPTION("Digital 21*4* Tulip ethernet driver");
+MODULE_PARM(debug, "i");
+MODULE_PARM(max_interrupt_work, "i");
+MODULE_PARM(reverse_probe, "i");
+MODULE_PARM(rx_copybreak, "i");
+MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i");
+MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
+#endif
+
+/* An additional parameter that may be passed in... */
+static int debug = -1;
+
+int
+init_module(void)
+{
+ if (debug >= 0)
+ tulip_debug = debug;
+
+#ifdef CARDBUS
+ register_driver(&tulip_ops);
+ return 0;
+#else
+ return tulip_probe(NULL);
+#endif
+}
+
+void
+cleanup_module(void)
+{
+ struct device *next_dev;
+
+#ifdef CARDBUS
+ unregister_driver(&tulip_ops);
+#endif
+
+ /* No need to check MOD_IN_USE, as sys_delete_module() checks. */
+ while (root_tulip_dev) {
+ next_dev = ((struct tulip_private *)root_tulip_dev->priv)->next_module;
+ unregister_netdev(root_tulip_dev);
+ release_region(root_tulip_dev->base_addr, TULIP_TOTAL_SIZE);
+ kfree(root_tulip_dev);
+ root_tulip_dev = next_dev;
+ }
+}
+
+#endif /* MODULE */
+
+/*
+ * Local variables:
+ * SMP-compile-command: "gcc -D__SMP__ -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c tulip.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
+ * compile-command: "gcc -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c tulip.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
+ * c-indent-level: 4
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)