patch-2.3.99-pre6 linux/drivers/net/pcmcia/3c575_cb.c
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- Lines: 2160
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.3.99-pre5/linux/drivers/net/pcmcia/3c575_cb.c
- Orig date:
Mon Mar 27 08:08:26 2000
diff -u --recursive --new-file v2.3.99-pre5/linux/drivers/net/pcmcia/3c575_cb.c linux/drivers/net/pcmcia/3c575_cb.c
@@ -1,2159 +0,0 @@
-/* EtherLinkXL.c: A 3Com EtherLink PCI III/XL ethernet driver for linux. */
-/*
- Written 1996-1999 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 3Com "Vortex" and "Boomerang" series ethercards.
- Members of the series include Fast EtherLink 3c590/3c592/3c595/3c597
- and the EtherLink XL 3c900 and 3c905 cards.
-
- 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
-
- Linux Kernel Additions:
-
- LK1.1.2 (March 19, 2000)
- * New PCI interface (jgarzik)
-
-*/
-
-static char *version =
-"3c575_cb.c:v0.99L+LK1.1.2 3/19/2000 Donald Becker and others http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html\n";
-
-/* "Knobs" that adjust features and parameters. */
-/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
- Setting to > 1512 effectively disables this feature. */
-static const int rx_copybreak = 200;
-/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
-static const int mtu = 1500;
-/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
-static int max_interrupt_work = 32;
-
-/* Put out somewhat more debugging messages. (0: no msg, 1 minimal .. 6). */
-#define vortex_debug debug
-#ifdef VORTEX_DEBUG
-static int vortex_debug = VORTEX_DEBUG;
-#else
-static int vortex_debug = 1;
-#endif
-
-/* Some values here only for performance evaluation and path-coverage
- debugging. */
-static int rx_nocopy = 0, rx_copy = 0, queued_packet = 0, rx_csumhits;
-
-/* A few values that may be tweaked. */
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT ((400*HZ)/1000)
-
-/* Keep the ring sizes a power of two for efficiency. */
-#define TX_RING_SIZE 16
-#define RX_RING_SIZE 32
-#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
-
-#ifndef __OPTIMIZE__
-#warning You must compile this file with the correct options!
-#warning See the last lines of the source file.
-#error You must compile this driver with "-O".
-#endif
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/errno.h>
-#include <linux/in.h>
-#include <linux/ioport.h>
-#include <linux/malloc.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <asm/irq.h> /* For NR_IRQS only. */
-#include <asm/bitops.h>
-#include <asm/io.h>
-
-/* Kernel compatibility defines, some common to David Hinds' PCMCIA package.
- This is only in the support-all-kernels source code. */
-
-#define RUN_AT(x) (jiffies + (x))
-
-#include <linux/delay.h>
-
-MODULE_AUTHOR("Donald Becker <becker@cesdis.gsfc.nasa.gov>");
-MODULE_DESCRIPTION("3Com 3c590/3c900 series Vortex/Boomerang driver");
-MODULE_PARM(debug, "i");
-MODULE_PARM(options, "1-" __MODULE_STRING(8) "i");
-MODULE_PARM(full_duplex, "1-" __MODULE_STRING(8) "i");
-MODULE_PARM(rx_copybreak, "i");
-MODULE_PARM(max_interrupt_work, "i");
-
-/* Operational parameter that usually are not changed. */
-
-/* The Vortex size is twice that of the original EtherLinkIII series: the
- runtime register window, window 1, is now always mapped in.
- The Boomerang size is twice as large as the Vortex -- it has additional
- bus master control registers. */
-#define VORTEX_TOTAL_SIZE 0x20
-#define BOOMERANG_TOTAL_SIZE 0x40
-
-/* Set iff a MII transceiver on any interface requires mdio preamble.
- This only set with the original DP83840 on older 3c905 boards, so the extra
- code size of a per-interface flag is not worthwhile. */
-static char mii_preamble_required = 0;
-
-#define PFX "3c575_cb: "
-
-
-
-/*
- Theory of Operation
-
-I. Board Compatibility
-
-This device driver is designed for the 3Com FastEtherLink and FastEtherLink
-XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs
-versions of the FastEtherLink cards. The supported product IDs are
- 3c590, 3c592, 3c595, 3c597, 3c900, 3c905
-
-The related ISA 3c515 is supported with a separate driver, 3c515.c, included
-with the kernel source or available from
- cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html
-
-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 should be set to assign the
-PCI INTA signal to an otherwise unused system IRQ line.
-
-The EEPROM settings for media type and forced-full-duplex are observed.
-The EEPROM media type should be left at the default "autoselect" unless using
-10base2 or AUI connections which cannot be reliably detected.
-
-III. Driver operation
-
-The 3c59x series use an interface that's very similar to the previous 3c5x9
-series. The primary interface is two programmed-I/O FIFOs, with an
-alternate single-contiguous-region bus-master transfer (see next).
-
-The 3c900 "Boomerang" series uses a full-bus-master interface with separate
-lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet,
-DEC Tulip and Intel Speedo3. The first chip version retains a compatible
-programmed-I/O interface that has been removed in 'B' and subsequent board
-revisions.
-
-One extension that is advertised in a very large font is that the adapters
-are capable of being bus masters. On the Vortex chip this capability was
-only for a single contiguous region making it far less useful than the full
-bus master capability. There is a significant performance impact of taking
-an extra interrupt or polling for the completion of each transfer, as well
-as difficulty sharing the single transfer engine between the transmit and
-receive threads. Using DMA transfers is a win only with large blocks or
-with the flawed versions of the Intel Orion motherboard PCI controller.
-
-The Boomerang chip's full-bus-master interface is useful, and has the
-currently-unused advantages over other similar chips that queued transmit
-packets may be reordered and receive buffer groups are associated with a
-single frame.
-
-With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme.
-Rather than a fixed intermediate receive buffer, this scheme allocates
-full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as
-the copying breakpoint: it is chosen to trade-off the memory wasted by
-passing the full-sized skbuff to the queue layer for all frames vs. the
-copying cost of copying a frame to a correctly-sized skbuff.
-
-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.
-
-IV. Notes
-
-Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development
-3c590, 3c595, and 3c900 boards.
-The name "Vortex" is the internal 3Com project name for the PCI ASIC, and
-the EISA version is called "Demon". According to Terry these names come
-from rides at the local amusement park.
-
-The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes!
-This driver only supports ethernet packets because of the skbuff allocation
-limit of 4K.
-*/
-
-/* This table drives the PCI probe routines. It's mostly boilerplate in all
- of the drivers, and will likely be provided by some future kernel.
-*/
-enum pci_flags_bit {
- PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4,
- PCI_ADDR0=0x10<<0, PCI_ADDR1=0x10<<1, PCI_ADDR2=0x10<<2, PCI_ADDR3=0x10<<3,
-};
-
-enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4,
- HAS_PWR_CTRL=0x10, HAS_MII=0x20, HAS_NWAY=0x40, HAS_CB_FNS=0x80, };
-
-
-enum vortex_chips {
- CH_3C590 = 0,
- CH_3C595_1,
- CH_3C595_2,
- CH_3C595_3,
- CH_VORTEX,
- CH_3C900_1,
- CH_3C900_2,
- CH_3C900_3,
- CH_3C900B_FL,
- CH_3C905_1,
- CH_3C905_2,
- CH_3C905B_1,
- CH_3C905B_2,
- CH_3C905B_FX,
- CH_3C905C,
- CH_3C980,
- CH_3CSOHO100_TX,
- CH_3C555,
- CH_3C575_1,
- CH_3CCFE575,
- CH_3CCFE575CT,
- CH_3CCFE656,
- CH_3CCFEM656,
- CH_3C575_2,
- CH_BOOMERANG,
-};
-
-
-/* note: this array directly indexed by above enums, and MUST
- * be kept in sync with both the enums above, and the PCI device
- * table below
- */
-static struct vortex_chip_info {
- const char *name;
- int flags;
- int drv_flags;
- int io_size;
-} vortex_info_tbl[] = {
- {"3c590 Vortex 10Mbps",
- PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
- {"3c595 Vortex 100baseTx",
- PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
- {"3c595 Vortex 100baseT4",
- PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
- {"3c595 Vortex 100base-MII",
- PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
- {"3Com Vortex",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG, 64, },
- {"3c900 Boomerang 10baseT",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG, 64, },
- {"3c900 Boomerang 10Mbps Combo",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG, 64, },
- {"3c900 Cyclone 10Mbps Combo",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
- {"3c900B-FL Cyclone 10base-FL",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
- {"3c905 Boomerang 100baseTx",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII, 64, },
- {"3c905 Boomerang 100baseT4",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII, 64, },
- {"3c905B Cyclone 100baseTx",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY, 128, },
- {"3c905B Cyclone 10/100/BNC",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY, 128, },
- {"3c905B-FX Cyclone 100baseFx",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
- {"3c905C Tornado",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
- {"3c980 Cyclone",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
- {"3cSOHO100-TX Hurricane",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
- {"3c555 Laptop Hurricane",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE, 128, },
- {"3c575 Boomerang CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII, 64, },
- {"3CCFE575 Cyclone CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS, 128, },
- {"3CCFE575CT Cyclone CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS, 128, },
- {"3CCFE656 Cyclone CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS, 128, },
- {"3CCFEM656 Cyclone CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS, 128, },
- {"3c575 series CardBus (unknown version)",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII, 64, },
- {"3Com Boomerang (unknown version)",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG, 64, },
- {0,}, /* 0 terminated list. */
-};
-
-
-static struct pci_device_id vortex_pci_tbl[] __devinit = {
- { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
- { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 },
- { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 },
- { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 },
- { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_VORTEX },
- { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 },
- { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 },
- { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
- { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL },
- { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 },
- { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 },
- { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 },
- { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 },
- { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX },
- { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C },
- { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 },
- { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX },
- { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 },
- { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 },
- { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 },
- { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT },
- { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 },
- { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 },
- { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_2 },
- { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_BOOMERANG },
- {0,}, /* 0 terminated list. */
-};
-MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
-
-
-/* Operational definitions.
- These are not used by other compilation units and thus are not
- exported in a ".h" file.
-
- First the windows. There are eight register windows, with the command
- and status registers available in each.
- */
-#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
-#define EL3_CMD 0x0e
-#define EL3_STATUS 0x0e
-
-/* The top five bits written to EL3_CMD are a command, the lower
- 11 bits are the parameter, if applicable.
- Note that 11 parameters bits was fine for ethernet, but the new chip
- can handle FDDI length frames (~4500 octets) and now parameters count
- 32-bit 'Dwords' rather than octets. */
-
-enum vortex_cmd {
- TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
- RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11,
- UpStall = 6<<11, UpUnstall = (6<<11)+1,
- DownStall = (6<<11)+2, DownUnstall = (6<<11)+3,
- RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
- FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
- SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
- SetTxThreshold = 18<<11, SetTxStart = 19<<11,
- StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11,
- StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,};
-
-/* The SetRxFilter command accepts the following classes: */
-enum RxFilter {
- RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
-
-/* Bits in the general status register. */
-enum vortex_status {
- IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004,
- TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
- IntReq = 0x0040, StatsFull = 0x0080,
- DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10,
- DMAInProgress = 1<<11, /* DMA controller is still busy.*/
- CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/
-};
-
-/* Register window 1 offsets, the window used in normal operation.
- On the Vortex this window is always mapped at offsets 0x10-0x1f. */
-enum Window1 {
- TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
- RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B,
- TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
-};
-enum Window0 {
- Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
- Wn0EepromData = 12, /* Window 0: EEPROM results register. */
- IntrStatus=0x0E, /* Valid in all windows. */
-};
-enum Win0_EEPROM_bits {
- EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
- EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
- EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
-};
-/* EEPROM locations. */
-enum eeprom_offset {
- PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3,
- EtherLink3ID=7, IFXcvrIO=8, IRQLine=9,
- NodeAddr01=10, NodeAddr23=11, NodeAddr45=12,
- DriverTune=13, Checksum=15};
-
-enum Window2 { /* Window 2. */
- Wn2_ResetOptions=12,
-};
-enum Window3 { /* Window 3: MAC/config bits. */
- Wn3_Config=0, Wn3_MAC_Ctrl=6, Wn3_Options=8,
-};
-union wn3_config {
- int i;
- struct w3_config_fields {
- unsigned int ram_size:3, ram_width:1, ram_speed:2, rom_size:2;
- int pad8:8;
- unsigned int ram_split:2, pad18:2, xcvr:4, autoselect:1;
- int pad24:7;
- } u;
-};
-
-enum Window4 { /* Window 4: Xcvr/media bits. */
- Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10,
-};
-enum Win4_Media_bits {
- Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */
- Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */
- Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */
- Media_LnkBeat = 0x0800,
-};
-enum Window7 { /* Window 7: Bus Master control. */
- Wn7_MasterAddr = 0, Wn7_MasterLen = 6, Wn7_MasterStatus = 12,
-};
-/* Boomerang bus master control registers. */
-enum MasterCtrl {
- PktStatus = 0x20, DownListPtr = 0x24, FragAddr = 0x28, FragLen = 0x2c,
- TxFreeThreshold = 0x2f, UpPktStatus = 0x30, UpListPtr = 0x38,
-};
-
-/* The Rx and Tx descriptor lists.
- Caution Alpha hackers: these types are 32 bits! Note also the 8 byte
- alignment contraint on tx_ring[] and rx_ring[]. */
-#define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */
-struct boom_rx_desc {
- u32 next; /* Last entry points to 0. */
- s32 status;
- u32 addr; /* Up to 63 addr/len pairs possible. */
- s32 length; /* Set LAST_FRAG to indicate last pair. */
-};
-/* Values for the Rx status entry. */
-enum rx_desc_status {
- RxDComplete=0x00008000, RxDError=0x4000,
- /* See boomerang_rx() for actual error bits */
- IPChksumErr=1<<25, TCPChksumErr=1<<26, UDPChksumErr=1<<27,
- IPChksumValid=1<<29, TCPChksumValid=1<<30, UDPChksumValid=1<<31,
-};
-
-struct boom_tx_desc {
- u32 next; /* Last entry points to 0. */
- s32 status; /* bits 0:12 length, others see below. */
- u32 addr;
- s32 length;
-};
-
-/* Values for the Tx status entry. */
-enum tx_desc_status {
- CRCDisable=0x2000, TxDComplete=0x8000,
- AddIPChksum=0x02000000, AddTCPChksum=0x04000000, AddUDPChksum=0x08000000,
- TxIntrUploaded=0x80000000, /* IRQ when in FIFO, but maybe not sent. */
-};
-
-/* Chip features we care about in vp->capabilities, read from the EEPROM. */
-enum ChipCaps { CapBusMaster=0x20, CapPwrMgmt=0x2000 };
-
-struct vortex_private {
- /* The Rx and Tx rings should be quad-word-aligned. */
- struct boom_rx_desc rx_ring[RX_RING_SIZE];
- struct boom_tx_desc tx_ring[TX_RING_SIZE];
- /* The addresses of transmit- and receive-in-place skbuffs. */
- struct sk_buff* rx_skbuff[RX_RING_SIZE];
- struct sk_buff* tx_skbuff[TX_RING_SIZE];
- struct net_device *next_module; /* NULL if PCI device */
- void *priv_addr;
- unsigned int cur_rx, cur_tx; /* The next free ring entry */
- unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
- struct net_device_stats stats;
- struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
-
- /* PCI configuration space information. */
- struct pci_dev *pdev;
- char *cb_fn_base; /* CardBus function status addr space. */
- int chip_id;
-
- /* The remainder are related to chip state, mostly media selection. */
- unsigned long in_interrupt;
- struct timer_list timer; /* Media selection timer. */
- int options; /* User-settable misc. driver options. */
- unsigned int media_override:4, /* Passed-in media type. */
- default_media:4, /* Read from the EEPROM/Wn3_Config. */
- full_duplex:1, force_fd:1, autoselect:1,
- bus_master:1, /* Vortex can only do a fragment bus-m. */
- full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */
- hw_csums:1, /* Has hardware checksums. */
- tx_full:1,
- open:1,
- reap:1;
- u16 status_enable;
- u16 intr_enable;
- u16 available_media; /* From Wn3_Options. */
- u16 capabilities, info1, info2; /* Various, from EEPROM. */
- u16 advertising; /* NWay media advertisement */
- unsigned char phys[2]; /* MII device addresses. */
- u16 deferred;
- spinlock_t lock;
-};
-
-/* The action to take with a media selection timer tick.
- Note that we deviate from the 3Com order by checking 10base2 before AUI.
- */
-enum xcvr_types {
- XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
- XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10,
-};
-
-static struct media_table {
- char *name;
- unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
- mask:8, /* The transceiver-present bit in Wn3_Config.*/
- next:8; /* The media type to try next. */
- int wait; /* Time before we check media status. */
-} media_tbl[] = {
- { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10},
- { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10},
- { "undefined", 0, 0x80, XCVR_10baseT, 10000},
- { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10},
- { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10},
- { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10},
- { "MII", 0, 0x41, XCVR_10baseT, 3*HZ },
- { "undefined", 0, 0x01, XCVR_10baseT, 10000},
- { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ},
- { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ },
- { "Default", 0, 0xFF, XCVR_10baseT, 10000},
-};
-
-static int vortex_probe1(struct pci_dev *pdev, long ioaddr, int irq,
- int chip_idx, int card_idx);
-static void vortex_up(struct net_device *dev);
-static void vortex_down(struct net_device *dev);
-static int vortex_open(struct net_device *dev);
-static void mdio_sync(long ioaddr, int bits);
-static int mdio_read(long ioaddr, int phy_id, int location);
-static void mdio_write(long ioaddr, int phy_id, int location, int value);
-static void vortex_timer(unsigned long arg);
-static int vortex_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static int boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static int vortex_rx(struct net_device *dev);
-static int boomerang_rx(struct net_device *dev);
-static void vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-static int vortex_close(struct net_device *dev);
-static void update_stats(long ioaddr, struct net_device *dev);
-static struct net_device_stats *vortex_get_stats(struct net_device *dev);
-static void set_rx_mode(struct net_device *dev);
-static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static void vortex_tx_timeout(struct net_device *dev);
-static void acpi_set_WOL(struct net_device *dev);
-
-/* This driver uses 'options' to pass the media type, full-duplex flag, etc. */
-/* Option count limit only -- unlimited interfaces are supported. */
-#define MAX_UNITS 8
-static int options[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1,};
-static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-
-
-/* A list of all installed Vortex EISA devices, for removing the driver module. */
-static struct net_device *root_vortex_eisa_dev = NULL;
-
-static int vortex_cards_found = 0;
-
-
-
-
-static void vortex_suspend (struct pci_dev *pdev)
-{
- struct net_device *dev = pdev->driver_data;
-
- printk(KERN_DEBUG "vortex_suspend(%s)\n", dev->name);
-
- if (dev && dev->priv) {
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- if (vp->open) {
- netif_device_detach(dev);
- vortex_down(dev);
- }
- }
-}
-
-
-static void vortex_resume (struct pci_dev *pdev)
-{
- struct net_device *dev = pdev->driver_data;
-
- printk(KERN_DEBUG "vortex_resume(%s)\n", dev->name);
-
- if (dev && dev->priv) {
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- if (vp->open) {
- vortex_up(dev);
- netif_device_attach(dev);
- }
- }
-}
-
-
-/* returns count found (>= 0), or negative on error */
-static int __init vortex_eisa_init (void)
-{
- long ioaddr;
- int rc;
- int orig_cards_found = vortex_cards_found;
-
- /* Now check all slots of the EISA bus. */
- if (!EISA_bus)
- return 0;
-
- for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
- int device_id;
-
- if (request_region(ioaddr, VORTEX_TOTAL_SIZE, "vortex") == NULL)
- continue;
-
- /* Check the standard EISA ID register for an encoded '3Com'. */
- if (inw(ioaddr + 0xC80) != 0x6d50) {
- release_region (ioaddr, VORTEX_TOTAL_SIZE);
- continue;
- }
-
- /* Check for a product that we support, 3c59{2,7} any rev. */
- device_id = (inb(ioaddr + 0xC82)<<8) + inb(ioaddr + 0xC83);
- if ((device_id & 0xFF00) != 0x5900) {
- release_region (ioaddr, VORTEX_TOTAL_SIZE);
- continue;
- }
-
- rc = vortex_probe1(NULL, ioaddr, inw(ioaddr + 0xC88) >> 12,
- 4, /* XXX is 4 correct eisa idx? */
- vortex_cards_found);
- if (rc == 0)
- vortex_cards_found++;
- else
- release_region (ioaddr, VORTEX_TOTAL_SIZE);
- }
-
- return vortex_cards_found - orig_cards_found;
-}
-
-
-/* returns count (>= 0), or negative on error */
-static int __devinit vortex_init_one (struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- int rc;
-
- rc = vortex_probe1 (pdev, pci_resource_start (pdev, 0), pdev->irq,
- ent->driver_data, vortex_cards_found);
- if (rc == 0)
- vortex_cards_found++;
-
- return rc;
-}
-
-
-/* NOTE: pdev can be NULL, for the case of an EISA driver */
-static int __devinit vortex_probe1(struct pci_dev *pdev,
- long ioaddr, int irq,
- int chip_idx, int card_idx)
-{
- struct vortex_private *vp;
- int option;
- unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */
- int i;
- struct net_device *dev;
- static int printed_version = 0;
-
- if (!printed_version) {
- printk (KERN_INFO "%s", version);
- printed_version = 1;
- }
-
- dev = init_etherdev(NULL, sizeof(*vp));
- if (!dev) {
- printk (KERN_ERR PFX "unable to allocate etherdev, aborting\n");
- return -ENOMEM;
- }
-
- printk(KERN_INFO "%s: 3Com %s %s at 0x%lx, ",
- dev->name,
- pdev ? "PCI" : "EISA",
- vortex_info_tbl[chip_idx].name,
- ioaddr);
-
- /* private struct aligned and zeroed by init_etherdev */
- vp = dev->priv;
- vp->priv_addr = vp;
- dev->base_addr = ioaddr;
- dev->irq = irq;
- dev->mtu = mtu;
-
- /* module list only for EISA devices */
- if (pdev == NULL) {
- vp->next_module = root_vortex_eisa_dev;
- root_vortex_eisa_dev = dev;
- }
-
- /* PCI-only startup logic */
- if (pdev) {
- /* EISA resources already marked, so only PCI needs to do this here */
- if (!request_region (ioaddr, vortex_info_tbl[chip_idx].io_size,
- dev->name)) {
- printk (KERN_ERR "%s: Cannot reserve I/O resource 0x%x @ 0x%lx, aborting\n",
- dev->name, vortex_info_tbl[chip_idx].io_size, ioaddr);
- kfree (dev);
- return -EBUSY;
- }
-
- /* wake up and enable device */
- if (pci_enable_device (pdev)) {
- printk (KERN_ERR "%s: Cannot enable device, aborting\n", dev->name);
- release_region (ioaddr, vortex_info_tbl[chip_idx].io_size);
- kfree (dev);
- return -EIO;
- }
-
- /* enable bus-mastering if necessary */
- if (vortex_info_tbl[chip_idx].flags & PCI_USES_MASTER)
- pci_set_master (pdev);
- }
-
- vp->lock = SPIN_LOCK_UNLOCKED;
- vp->chip_id = chip_idx;
- vp->pdev = pdev;
-
- /* if we are a PCI driver, we store info in pdev->driver_data
- * instead of a module list */
- if (pdev)
- pdev->driver_data = dev;
-
- /* The lower four bits are the media type. */
- if (dev->mem_start)
- option = dev->mem_start;
- else if (card_idx < MAX_UNITS)
- option = options[card_idx];
- else
- option = -1;
-
- if (option >= 0) {
- vp->media_override = ((option & 7) == 2) ? 0 : option & 15;
- vp->full_duplex = (option & 0x200) ? 1 : 0;
- vp->bus_master = (option & 16) ? 1 : 0;
- } else {
- vp->media_override = 7;
- vp->full_duplex = 0;
- vp->bus_master = 0;
- }
- if (card_idx < MAX_UNITS && full_duplex[card_idx] > 0)
- vp->full_duplex = 1;
-
- vp->force_fd = vp->full_duplex;
- vp->options = option;
-
- /* Read the station address from the EEPROM. */
- EL3WINDOW(0);
- for (i = 0; i < 0x40; i++) {
- int timer;
-#if 1 /* ifdef CARDBUS */
- outw(0x230 + i, ioaddr + Wn0EepromCmd);
-#else
- outw(EEPROM_Read + i, ioaddr + Wn0EepromCmd);
-#endif
- /* Pause for at least 162 us. for the read to take place. */
- for (timer = 10; timer >= 0; timer--) {
- udelay(162);
- if ((inw(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
- break;
- }
- eeprom[i] = inw(ioaddr + Wn0EepromData);
- }
- for (i = 0; i < 0x18; i++)
- checksum ^= eeprom[i];
- checksum = (checksum ^ (checksum >> 8)) & 0xff;
- if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */
- while (i < 0x21)
- checksum ^= eeprom[i++];
- checksum = (checksum ^ (checksum >> 8)) & 0xff;
- }
- if (checksum != 0x00)
- printk(" ***INVALID CHECKSUM %4.4x*** ", checksum);
-
- for (i = 0; i < 3; i++)
- ((u16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
- for (i = 0; i < 6; i++)
- printk("%c%2.2x", i ? ':' : ' ', dev->dev_addr[i]);
- EL3WINDOW(2);
- for (i = 0; i < 6; i++)
- outb(dev->dev_addr[i], ioaddr + i);
-
-#ifdef __sparc__
- printk(", IRQ %s\n", __irq_itoa(dev->irq));
-#else
- printk(", IRQ %d\n", dev->irq);
- /* Tell them about an invalid IRQ. */
- if (vortex_debug && (dev->irq <= 0 || dev->irq >= NR_IRQS))
- printk(KERN_WARNING " *** Warning: IRQ %d is unlikely to work! ***\n",
- dev->irq);
-#endif
-
- if (pdev && vortex_info_tbl[vp->chip_id].drv_flags & HAS_CB_FNS) {
- u32 fn_st_addr; /* Cardbus function status space */
- fn_st_addr = pci_resource_start (pdev, 2);
- if (fn_st_addr)
- vp->cb_fn_base = ioremap(fn_st_addr, 128);
- printk(KERN_INFO "%s: CardBus functions mapped %8.8x->%p\n",
- dev->name, fn_st_addr, vp->cb_fn_base);
- }
-
- /* Extract our information from the EEPROM data. */
- vp->info1 = eeprom[13];
- vp->info2 = eeprom[15];
- vp->capabilities = eeprom[16];
-
- if (vp->info1 & 0x8000)
- vp->full_duplex = 1;
-
- {
- char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
- union wn3_config config;
- EL3WINDOW(3);
- vp->available_media = inw(ioaddr + Wn3_Options);
- if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
- vp->available_media = 0x40;
- config.i = inl(ioaddr + Wn3_Config);
- if (vortex_debug > 1)
- printk(KERN_DEBUG " Internal config register is %4.4x, "
- "transceivers %#x.\n", config.i, inw(ioaddr + Wn3_Options));
- printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
- 8 << config.u.ram_size,
- config.u.ram_width ? "word" : "byte",
- ram_split[config.u.ram_split],
- config.u.autoselect ? "autoselect/" : "",
- config.u.xcvr > XCVR_ExtMII ? "<invalid transceiver>" :
- media_tbl[config.u.xcvr].name);
- vp->default_media = config.u.xcvr;
- vp->autoselect = config.u.autoselect;
- }
-
- if (vp->media_override != 7) {
- printk(KERN_INFO " Media override to transceiver type %d (%s).\n",
- vp->media_override, media_tbl[vp->media_override].name);
- dev->if_port = vp->media_override;
- } else
- dev->if_port = vp->default_media;
-
- if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
- int phy, phy_idx = 0;
- EL3WINDOW(4);
- mii_preamble_required++;
- mii_preamble_required++;
- mdio_read(ioaddr, 24, 1);
- for (phy = 1; phy <= 32 && phy_idx < sizeof(vp->phys); phy++) {
- int mii_status, phyx = phy & 0x1f;
- mii_status = mdio_read(ioaddr, phyx, 1);
- if (mii_status && mii_status != 0xffff) {
- vp->phys[phy_idx++] = phyx;
- printk(KERN_INFO " MII transceiver found at address %d,"
- " status %4x.\n", phyx, mii_status);
- if ((mii_status & 0x0040) == 0)
- mii_preamble_required++;
- }
- }
- mii_preamble_required--;
- if (phy_idx == 0) {
- printk(KERN_WARNING" ***WARNING*** No MII transceivers found!\n");
- vp->phys[0] = 24;
- } else {
- vp->advertising = mdio_read(ioaddr, vp->phys[0], 4);
- if (vp->full_duplex) {
- /* Only advertise the FD media types. */
- vp->advertising &= ~0x02A0;
- mdio_write(ioaddr, vp->phys[0], 4, vp->advertising);
- }
- }
- }
-
- if (vp->capabilities & CapPwrMgmt)
- acpi_set_WOL(dev);
-
- if (vp->capabilities & CapBusMaster) {
- vp->full_bus_master_tx = 1;
- printk(KERN_INFO" Enabling bus-master transmits and %s receives.\n",
- (vp->info2 & 1) ? "early" : "whole-frame" );
- vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2;
- }
-
- /* The 3c59x-specific entries in the device structure. */
- dev->open = &vortex_open;
- dev->hard_start_xmit = &vortex_start_xmit;
- dev->stop = &vortex_close;
- dev->get_stats = &vortex_get_stats;
- dev->do_ioctl = &vortex_ioctl;
- dev->set_multicast_list = &set_rx_mode;
- dev->tx_timeout = &vortex_tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- return 0;
-}
-
-static void wait_for_completion(struct net_device *dev, int cmd)
-{
- int i = 2000;
- outw(cmd, dev->base_addr + EL3_CMD);
- while (--i > 0)
- if (!(inw(dev->base_addr + EL3_STATUS) & CmdInProgress))
- break;
- if (i == 0)
- printk(KERN_NOTICE "%s: command 0x%04x did not complete!\n",
- dev->name, cmd);
-}
-
-static void
-vortex_up(struct net_device *dev)
-{
- long ioaddr = dev->base_addr;
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- union wn3_config config;
- int i, device_id;
-
- if (vp->pdev)
- device_id = vp->pdev->device;
- else
- device_id = 0x5900; /* EISA */
-
- /* Before initializing select the active media port. */
- EL3WINDOW(3);
- config.i = inl(ioaddr + Wn3_Config);
-
- if (vp->media_override != 7) {
- if (vortex_debug > 1)
- printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n",
- dev->name, vp->media_override,
- media_tbl[vp->media_override].name);
- dev->if_port = vp->media_override;
- } else if (vp->autoselect) {
- if (vortex_info_tbl[vp->chip_id].drv_flags & HAS_NWAY)
- dev->if_port = XCVR_NWAY;
- else {
- /* Find first available media type, starting with 100baseTx. */
- dev->if_port = XCVR_100baseTx;
- while (! (vp->available_media & media_tbl[dev->if_port].mask))
- dev->if_port = media_tbl[dev->if_port].next;
- }
- } else
- dev->if_port = vp->default_media;
-
- init_timer(&vp->timer);
- vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
- vp->timer.data = (unsigned long)dev;
- vp->timer.function = &vortex_timer; /* timer handler */
- add_timer(&vp->timer);
-
- if (vortex_debug > 1)
- printk(KERN_DEBUG "%s: Initial media type %s.\n",
- dev->name, media_tbl[dev->if_port].name);
-
- vp->full_duplex = vp->force_fd;
- config.u.xcvr = dev->if_port;
- if ( ! (vortex_info_tbl[vp->chip_id].drv_flags & HAS_NWAY))
- outl(config.i, ioaddr + Wn3_Config);
-
- if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
- int mii_reg1, mii_reg5;
- EL3WINDOW(4);
- /* Read BMSR (reg1) only to clear old status. */
- mii_reg1 = mdio_read(ioaddr, vp->phys[0], 1);
- mii_reg5 = mdio_read(ioaddr, vp->phys[0], 5);
- if (mii_reg5 == 0xffff || mii_reg5 == 0x0000)
- ; /* No MII device or no link partner report */
- else if ((mii_reg5 & 0x0100) != 0 /* 100baseTx-FD */
- || (mii_reg5 & 0x00C0) == 0x0040) /* 10T-FD, but not 100-HD */
- vp->full_duplex = 1;
- if (vortex_debug > 1)
- printk(KERN_INFO "%s: MII #%d status %4.4x, link partner capability %4.4x,"
- " setting %s-duplex.\n", dev->name, vp->phys[0],
- mii_reg1, mii_reg5, vp->full_duplex ? "full" : "half");
- EL3WINDOW(3);
- }
-
- /* Set the full-duplex bit. */
- outb(((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
- (dev->mtu > 1500 ? 0x40 : 0), ioaddr + Wn3_MAC_Ctrl);
-
- if (vortex_debug > 1) {
- printk(KERN_DEBUG "%s: vortex_open() InternalConfig %8.8x.\n",
- dev->name, config.i);
- }
-
- wait_for_completion(dev, TxReset);
- wait_for_completion(dev, RxReset);
-
- outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
-
- if (vortex_debug > 1) {
- EL3WINDOW(4);
- printk(KERN_DEBUG "%s: vortex_open() irq %d media status %4.4x.\n",
- dev->name, dev->irq, inw(ioaddr + Wn4_Media));
- }
-
- /* Set the station address and mask in window 2 each time opened. */
- EL3WINDOW(2);
- for (i = 0; i < 6; i++)
- outb(dev->dev_addr[i], ioaddr + i);
- for (; i < 12; i+=2)
- outw(0, ioaddr + i);
- if (vp->cb_fn_base) {
- u_short n = inw(ioaddr + Wn2_ResetOptions);
- /* Inverted LED polarity */
- if (device_id != 0x5257)
- n |= 0x0010;
- /* Inverted polarity of MII power bit */
- if ((device_id == 0x6560) || (device_id == 0x6562) ||
- (device_id == 0x5257))
- n |= 0x4000;
- outw(n, ioaddr + Wn2_ResetOptions);
- }
-
- if (dev->if_port == XCVR_10base2)
- /* Start the thinnet transceiver. We should really wait 50ms...*/
- outw(StartCoax, ioaddr + EL3_CMD);
- if (dev->if_port != XCVR_NWAY) {
- EL3WINDOW(4);
- outw((inw(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
- media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
- }
-
- /* Switch to the stats window, and clear all stats by reading. */
- outw(StatsDisable, ioaddr + EL3_CMD);
- EL3WINDOW(6);
- for (i = 0; i < 10; i++)
- inb(ioaddr + i);
- inw(ioaddr + 10);
- inw(ioaddr + 12);
- /* New: On the Vortex we must also clear the BadSSD counter. */
- EL3WINDOW(4);
- inb(ioaddr + 12);
- /* ..and on the Boomerang we enable the extra statistics bits. */
- outw(0x0040, ioaddr + Wn4_NetDiag);
-
- /* Switch to register set 7 for normal use. */
- EL3WINDOW(7);
-
- if (vp->full_bus_master_rx) { /* Boomerang bus master. */
- vp->cur_rx = vp->dirty_rx = 0;
- /* Initialize the RxEarly register as recommended. */
- outw(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
- outl(0x0020, ioaddr + PktStatus);
- outl(virt_to_bus(&vp->rx_ring[0]), ioaddr + UpListPtr);
- }
- if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
- dev->hard_start_xmit = &boomerang_start_xmit;
- vp->cur_tx = vp->dirty_tx = 0;
- outb(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
- /* Clear the Rx, Tx rings. */
- for (i = 0; i < RX_RING_SIZE; i++)
- vp->rx_ring[i].status = 0;
- for (i = 0; i < TX_RING_SIZE; i++)
- vp->tx_skbuff[i] = 0;
- outl(0, ioaddr + DownListPtr);
- }
- /* Set receiver mode: presumably accept b-case and phys addr only. */
- set_rx_mode(dev);
- outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
-
- vp->in_interrupt = 0;
- netif_start_queue (dev);
-
- outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
- outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
- /* Allow status bits to be seen. */
- vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
- (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
- (vp->full_bus_master_rx ? UpComplete : RxComplete) |
- (vp->bus_master ? DMADone : 0);
- vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable | RxComplete |
- StatsFull | HostError | TxComplete | IntReq
- | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
- outw(vp->status_enable, ioaddr + EL3_CMD);
- /* Ack all pending events, and set active indicator mask. */
- outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
- ioaddr + EL3_CMD);
- outw(vp->intr_enable, ioaddr + EL3_CMD);
- if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
- writel(0x8000, vp->cb_fn_base + 4);
-}
-
-static int
-vortex_open(struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- int i;
-
-#ifdef CARDBUS
- if (vp->reap)
- return -ENODEV;
-#endif
- /* Use the now-standard shared IRQ implementation. */
- if (request_irq(dev->irq, &vortex_interrupt, SA_SHIRQ, dev->name, dev)) {
- return -EAGAIN;
- }
-
- if (vp->full_bus_master_rx) { /* Boomerang bus master. */
- if (vortex_debug > 2)
- printk(KERN_DEBUG "%s: Filling in the Rx ring.\n", dev->name);
- for (i = 0; i < RX_RING_SIZE; i++) {
- struct sk_buff *skb;
- vp->rx_ring[i].next = cpu_to_le32(virt_to_bus(&vp->rx_ring[i+1]));
- vp->rx_ring[i].status = 0; /* Clear complete bit. */
- vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
- skb = dev_alloc_skb(PKT_BUF_SZ);
- vp->rx_skbuff[i] = skb;
- if (skb == NULL)
- break; /* Bad news! */
- skb->dev = dev; /* Mark as being used by this device. */
- skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
- vp->rx_ring[i].addr = cpu_to_le32(virt_to_bus(skb->tail));
- }
- /* Wrap the ring. */
- vp->rx_ring[i-1].next = cpu_to_le32(virt_to_bus(&vp->rx_ring[0]));
- }
- if (vp->full_bus_master_tx)
- dev->hard_start_xmit = &boomerang_start_xmit;
-
- vortex_up(dev);
- vp->open = 1;
- MOD_INC_USE_COUNT;
-
- return 0;
-}
-
-static void vortex_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
- int next_tick = 60*HZ;
- int ok = 0;
- int media_status, mii_status, old_window;
-
- if (vortex_debug > 1)
- printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.\n",
- dev->name, media_tbl[dev->if_port].name);
-
- disable_irq(dev->irq);
- old_window = inw(ioaddr + EL3_CMD) >> 13;
- EL3WINDOW(4);
- media_status = inw(ioaddr + Wn4_Media);
- switch (dev->if_port) {
- case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
- if (media_status & Media_LnkBeat) {
- ok = 1;
- if (vortex_debug > 1)
- printk(KERN_DEBUG "%s: Media %s has link beat, %x.\n",
- dev->name, media_tbl[dev->if_port].name, media_status);
- } else if (vortex_debug > 1)
- printk(KERN_DEBUG "%s: Media %s is has no link beat, %x.\n",
- dev->name, media_tbl[dev->if_port].name, media_status);
- break;
- case XCVR_MII: case XCVR_NWAY:
- mii_status = mdio_read(ioaddr, vp->phys[0], 1);
- ok = 1;
- if (debug > 1)
- printk(KERN_DEBUG "%s: MII transceiver has status %4.4x.\n",
- dev->name, mii_status);
- if (mii_status & 0x0004) {
- int mii_reg5 = mdio_read(ioaddr, vp->phys[0], 5);
- if (! vp->force_fd && mii_reg5 != 0xffff) {
- int duplex = (mii_reg5&0x0100) ||
- (mii_reg5 & 0x01C0) == 0x0040;
- if (vp->full_duplex != duplex) {
- vp->full_duplex = duplex;
- printk(KERN_INFO "%s: Setting %s-duplex based on MII "
- "#%d link partner capability of %4.4x.\n",
- dev->name, vp->full_duplex ? "full" : "half",
- vp->phys[0], mii_reg5);
- /* Set the full-duplex bit. */
- EL3WINDOW(3);
- outb((vp->full_duplex ? 0x20 : 0) |
- (dev->mtu > 1500 ? 0x40 : 0),
- ioaddr + Wn3_MAC_Ctrl);
- }
- next_tick = 60*HZ;
- }
- }
- break;
- default: /* Other media types handled by Tx timeouts. */
- if (vortex_debug > 1)
- printk(KERN_DEBUG "%s: Media %s is has no indication, %x.\n",
- dev->name, media_tbl[dev->if_port].name, media_status);
- ok = 1;
- }
- if ( ! ok) {
- union wn3_config config;
-
- do {
- dev->if_port = media_tbl[dev->if_port].next;
- } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
- if (dev->if_port == XCVR_Default) { /* Go back to default. */
- dev->if_port = vp->default_media;
- if (vortex_debug > 1)
- printk(KERN_DEBUG "%s: Media selection failing, using default "
- "%s port.\n",
- dev->name, media_tbl[dev->if_port].name);
- } else {
- if (vortex_debug > 1)
- printk(KERN_DEBUG "%s: Media selection failed, now trying "
- "%s port.\n",
- dev->name, media_tbl[dev->if_port].name);
- next_tick = media_tbl[dev->if_port].wait;
- }
- outw((media_status & ~(Media_10TP|Media_SQE)) |
- media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
-
- EL3WINDOW(3);
- config.i = inl(ioaddr + Wn3_Config);
- config.u.xcvr = dev->if_port;
- outl(config.i, ioaddr + Wn3_Config);
-
- outw(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
- ioaddr + EL3_CMD);
- }
- EL3WINDOW(old_window);
- enable_irq(dev->irq);
-
- if (vortex_debug > 2)
- printk(KERN_DEBUG "%s: Media selection timer finished, %s.\n",
- dev->name, media_tbl[dev->if_port].name);
-
- vp->timer.expires = RUN_AT(next_tick);
- add_timer(&vp->timer);
- if (vp->deferred)
- outw(FakeIntr, ioaddr + EL3_CMD);
- return;
-}
-
-static void vortex_tx_timeout(struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
-
- printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
- dev->name, inb(ioaddr + TxStatus),
- inw(ioaddr + EL3_STATUS));
- /* Slight code bloat to be user friendly. */
- if ((inb(ioaddr + TxStatus) & 0x88) == 0x88)
- printk(KERN_ERR "%s: Transmitter encountered 16 collisions --"
- " network cable problem?\n", dev->name);
- if (inw(ioaddr + EL3_STATUS) & IntLatch) {
- printk(KERN_ERR "%s: Interrupt posted but not delivered --"
- " IRQ blocked by another device?\n", dev->name);
- /* Bad idea here.. but we might as well handle a few events. */
- vortex_interrupt(dev->irq, dev, 0);
- }
-
-#if ! defined(final_version)
- if (vp->full_bus_master_tx) {
- int i;
- printk(KERN_DEBUG " Flags; bus-master %d, full %d; dirty %d "
- "current %d.\n",
- vp->full_bus_master_tx, vp->tx_full, vp->dirty_tx, vp->cur_tx);
- printk(KERN_DEBUG " Transmit list %8.8x vs. %p.\n",
- inl(ioaddr + DownListPtr),
- &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
- for (i = 0; i < TX_RING_SIZE; i++) {
- printk(KERN_DEBUG " %d: @%p length %8.8x status %8.8x\n", i,
- &vp->tx_ring[i],
- le32_to_cpu(vp->tx_ring[i].length),
- le32_to_cpu(vp->tx_ring[i].status));
- }
- }
-#endif
- wait_for_completion(dev, TxReset);
-
- vp->stats.tx_errors++;
- if (vp->full_bus_master_tx) {
- if (vortex_debug > 0)
- printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n",
- dev->name);
- if (vp->cur_tx - vp->dirty_tx > 0 && inl(ioaddr + DownListPtr) == 0)
- outl(virt_to_bus(&vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]),
- ioaddr + DownListPtr);
- if (vp->tx_full && (vp->cur_tx - vp->dirty_tx <= TX_RING_SIZE - 1)) {
- vp->tx_full = 0;
- netif_start_queue (dev);
- }
- if (vp->tx_full)
- netif_stop_queue (dev);
- outb(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
- outw(DownUnstall, ioaddr + EL3_CMD);
- } else
- vp->stats.tx_dropped++;
-
- /* Issue Tx Enable */
- outw(TxEnable, ioaddr + EL3_CMD);
- dev->trans_start = jiffies;
-
- /* Switch to register set 7 for normal use. */
- EL3WINDOW(7);
-}
-
-/*
- * Handle uncommon interrupt sources. This is a separate routine to minimize
- * the cache impact.
- */
-static void
-vortex_error(struct net_device *dev, int status)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
- int do_tx_reset = 0;
-
- if (status & TxComplete) { /* Really "TxError" for us. */
- unsigned char tx_status = inb(ioaddr + TxStatus);
- /* Presumably a tx-timeout. We must merely re-enable. */
- if (vortex_debug > 2
- || (tx_status != 0x88 && vortex_debug > 0))
- printk(KERN_DEBUG"%s: Transmit error, Tx status register %2.2x.\n",
- dev->name, tx_status);
- if (tx_status & 0x14) vp->stats.tx_fifo_errors++;
- if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
- outb(0, ioaddr + TxStatus);
- if (tx_status & 0x30)
- do_tx_reset = 1;
- else /* Merely re-enable the transmitter. */
- outw(TxEnable, ioaddr + EL3_CMD);
- }
- if (status & RxEarly) { /* Rx early is unused. */
- vortex_rx(dev);
- outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
- }
- if (status & StatsFull) { /* Empty statistics. */
- static int DoneDidThat = 0;
- if (vortex_debug > 4)
- printk(KERN_DEBUG "%s: Updating stats.\n", dev->name);
- update_stats(ioaddr, dev);
- /* HACK: Disable statistics as an interrupt source. */
- /* This occurs when we have the wrong media type! */
- if (DoneDidThat == 0 &&
- inw(ioaddr + EL3_STATUS) & StatsFull) {
- printk(KERN_WARNING "%s: Updating statistics failed, disabling "
- "stats as an interrupt source.\n", dev->name);
- EL3WINDOW(5);
- outw(SetIntrEnb | (inw(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
- EL3WINDOW(7);
- DoneDidThat++;
- }
- }
- if (status & IntReq) { /* Restore all interrupt sources. */
- outw(vp->status_enable, ioaddr + EL3_CMD);
- outw(vp->intr_enable, ioaddr + EL3_CMD);
- }
- if (status & HostError) {
- u16 fifo_diag;
- EL3WINDOW(4);
- fifo_diag = inw(ioaddr + Wn4_FIFODiag);
- printk(KERN_ERR "%s: Host error, FIFO diagnostic register %4.4x.\n",
- dev->name, fifo_diag);
- /* Adapter failure requires Tx/Rx reset and reinit. */
- if (vp->full_bus_master_tx) {
- /* In this case, blow the card away */
- vortex_down(dev);
- wait_for_completion(dev, TotalReset | 0xff);
- vortex_up(dev);
- } else if (fifo_diag & 0x0400)
- do_tx_reset = 1;
- if (fifo_diag & 0x3000) {
- wait_for_completion(dev, RxReset);
- /* Set the Rx filter to the current state. */
- set_rx_mode(dev);
- outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
- outw(AckIntr | HostError, ioaddr + EL3_CMD);
- }
- }
- if (do_tx_reset) {
- wait_for_completion(dev, TxReset);
- outw(TxEnable, ioaddr + EL3_CMD);
- }
-
-}
-
-static int
-vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
-
- netif_stop_queue (dev);
-
- /* Put out the doubleword header... */
- outl(skb->len, ioaddr + TX_FIFO);
- if (vp->bus_master) {
- /* Set the bus-master controller to transfer the packet. */
- outl(virt_to_bus(skb->data), ioaddr + Wn7_MasterAddr);
- outw((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
- vp->tx_skb = skb;
- outw(StartDMADown, ioaddr + EL3_CMD);
- /* dev->tbusy will be cleared at the DMADone interrupt. */
- } else {
- /* ... and the packet rounded to a doubleword. */
- outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
- dev_kfree_skb (skb);
- if (inw(ioaddr + TxFree) > 1536) {
- netif_start_queue (dev);
- } else
- /* Interrupt us when the FIFO has room for max-sized packet. */
- outw(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
- }
-
- dev->trans_start = jiffies;
-
- /* Clear the Tx status stack. */
- {
- int tx_status;
- int i = 32;
-
- while (--i > 0 && (tx_status = inb(ioaddr + TxStatus)) > 0) {
- if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
- if (vortex_debug > 2)
- printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n",
- dev->name, tx_status);
- if (tx_status & 0x04) vp->stats.tx_fifo_errors++;
- if (tx_status & 0x38) vp->stats.tx_aborted_errors++;
- if (tx_status & 0x30) {
- wait_for_completion(dev, TxReset);
- }
- outw(TxEnable, ioaddr + EL3_CMD);
- }
- outb(0x00, ioaddr + TxStatus); /* Pop the status stack. */
- }
- }
- return 0;
-}
-
-static int
-boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
-
- netif_stop_queue (dev);
- if (1) {
- /* Calculate the next Tx descriptor entry. */
- int entry = vp->cur_tx % TX_RING_SIZE;
- struct boom_tx_desc *prev_entry =
- &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
- unsigned long flags;
-
- if (vortex_debug > 3)
- printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.\n",
- dev->name, vp->cur_tx);
- if (vp->tx_full) {
- if (vortex_debug >0)
- printk(KERN_WARNING "%s: Tx Ring full, refusing to send buffer.\n",
- dev->name);
- return 1;
- }
- vp->tx_skbuff[entry] = skb;
- vp->tx_ring[entry].next = 0;
- vp->tx_ring[entry].addr = cpu_to_le32(virt_to_bus(skb->data));
- vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
- vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
-
- spin_lock_irqsave(&vp->lock, flags);
- /* Wait for the stall to complete. */
- wait_for_completion(dev, DownStall);
- prev_entry->next = cpu_to_le32(virt_to_bus(&vp->tx_ring[entry]));
- if (inl(ioaddr + DownListPtr) == 0) {
- outl(virt_to_bus(&vp->tx_ring[entry]), ioaddr + DownListPtr);
- queued_packet++;
- }
- outw(DownUnstall, ioaddr + EL3_CMD);
- spin_unlock_irqrestore(&vp->lock, flags);
-
- vp->cur_tx++;
- if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
- vp->tx_full = 1;
- netif_stop_queue (dev);
- } else { /* Clear previous interrupt enable. */
-#if defined(tx_interrupt_mitigation)
- prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
-#endif
- netif_start_queue (dev);
- }
- 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 vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *dev = dev_id;
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr;
- int latency, status;
- int work_done = max_interrupt_work;
-
- spin_lock (&vp->lock);
-
- ioaddr = dev->base_addr;
- latency = inb(ioaddr + Timer);
- status = inw(ioaddr + EL3_STATUS);
- if (status & IntReq) {
- status |= vp->deferred;
- vp->deferred = 0;
- }
-
- if (status == 0xffff)
- goto handler_exit;
- if (vortex_debug > 4)
- printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
- dev->name, status, latency);
- do {
- if (vortex_debug > 5)
- printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
- dev->name, status);
- if (status & RxComplete)
- vortex_rx(dev);
- if (status & UpComplete) {
- outw(AckIntr | UpComplete, ioaddr + EL3_CMD);
- boomerang_rx(dev);
- }
-
- if (status & TxAvailable) {
- if (vortex_debug > 5)
- printk(KERN_DEBUG " TX room bit was handled.\n");
- /* There's room in the FIFO for a full-sized packet. */
- outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
- netif_wake_queue (dev);
- }
-
- if (status & DownComplete) {
- unsigned int dirty_tx = vp->dirty_tx;
-
- outw(AckIntr | DownComplete, ioaddr + EL3_CMD);
- while (vp->cur_tx - dirty_tx > 0) {
- int entry = dirty_tx % TX_RING_SIZE;
- if (inl(ioaddr + DownListPtr) ==
- virt_to_bus(&vp->tx_ring[entry]))
- break; /* It still hasn't been processed. */
- if (vp->tx_skbuff[entry]) {
- dev_kfree_skb_irq(vp->tx_skbuff[entry]);
- vp->tx_skbuff[entry] = 0;
- }
- /* vp->stats.tx_packets++; Counted below. */
- dirty_tx++;
- }
- vp->dirty_tx = dirty_tx;
- if (vp->tx_full && (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1)) {
- vp->tx_full = 0;
- netif_wake_queue (dev);
- }
- }
- if (vp->tx_full)
- netif_stop_queue (dev);
- if (status & DMADone) {
- if (inw(ioaddr + Wn7_MasterStatus) & 0x1000) {
- outw(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
- dev_kfree_skb_irq(vp->tx_skb); /* Release the transfered buffer */
- if (inw(ioaddr + TxFree) > 1536) {
- netif_wake_queue (dev);
- } else { /* Interrupt when FIFO has room for max-sized packet. */
- outw(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
- netif_stop_queue (dev);
- }
- }
- }
- /* Check for all uncommon interrupts at once. */
- if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
- if (status == 0xffff)
- break;
- vortex_error(dev, status);
- }
-
- if (--work_done < 0) {
- printk(KERN_WARNING "%s: Too much work in interrupt, status "
- "%4.4x.\n", dev->name, status);
- /* Disable all pending interrupts. */
- do {
- vp->deferred |= status;
- outw(SetStatusEnb | (~vp->deferred & vp->status_enable),
- ioaddr + EL3_CMD);
- outw(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
- } while ((status = inw(ioaddr + EL3_CMD)) & IntLatch);
- /* The timer will reenable interrupts. */
- del_timer(&vp->timer);
- vp->timer.expires = RUN_AT(1);
- add_timer(&vp->timer);
- break;
- }
- /* Acknowledge the IRQ. */
- outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
- if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
- writel(0x8000, vp->cb_fn_base + 4);
-
- } while ((status = inw(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
-
- if (vortex_debug > 4)
- printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
- dev->name, status);
-handler_exit:
- spin_unlock (&vp->lock);
-}
-
-static int vortex_rx(struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
- int i;
- short rx_status;
-
- if (vortex_debug > 5)
- printk(KERN_DEBUG" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
- inw(ioaddr+EL3_STATUS), inw(ioaddr+RxStatus));
- while ((rx_status = inw(ioaddr + RxStatus)) > 0) {
- if (rx_status & 0x4000) { /* Error, update stats. */
- unsigned char rx_error = inb(ioaddr + RxErrors);
- if (vortex_debug > 2)
- printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
- vp->stats.rx_errors++;
- if (rx_error & 0x01) vp->stats.rx_over_errors++;
- if (rx_error & 0x02) vp->stats.rx_length_errors++;
- if (rx_error & 0x04) vp->stats.rx_frame_errors++;
- if (rx_error & 0x08) vp->stats.rx_crc_errors++;
- if (rx_error & 0x10) vp->stats.rx_length_errors++;
- } else {
- /* The packet length: up to 4.5K!. */
- int pkt_len = rx_status & 0x1fff;
- struct sk_buff *skb;
-
- skb = dev_alloc_skb(pkt_len + 5);
- if (vortex_debug > 4)
- printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
- pkt_len, rx_status);
- if (skb != NULL) {
- skb->dev = dev;
- skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
- /* 'skb_put()' points to the start of sk_buff data area. */
- if (vp->bus_master &&
- ! (inw(ioaddr + Wn7_MasterStatus) & 0x8000)) {
- outl(virt_to_bus(skb_put(skb, pkt_len)),
- ioaddr + Wn7_MasterAddr);
- outw((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
- outw(StartDMAUp, ioaddr + EL3_CMD);
- while (inw(ioaddr + Wn7_MasterStatus) & 0x8000)
- ;
- } else {
- insl(ioaddr + RX_FIFO, skb_put(skb, pkt_len),
- (pkt_len + 3) >> 2);
- }
- outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
- dev->last_rx = jiffies;
- vp->stats.rx_packets++;
- /* Wait a limited time to go to next packet. */
- for (i = 200; i >= 0; i--)
- if ( ! (inw(ioaddr + EL3_STATUS) & CmdInProgress))
- break;
- continue;
- } else if (vortex_debug)
- printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of "
- "size %d.\n", dev->name, pkt_len);
- }
- vp->stats.rx_dropped++;
- wait_for_completion(dev, RxDiscard);
- }
-
- return 0;
-}
-
-static int
-boomerang_rx(struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- int entry = vp->cur_rx % RX_RING_SIZE;
- long ioaddr = dev->base_addr;
- int rx_status;
- int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
-
- if (vortex_debug > 5)
- printk(KERN_DEBUG " In boomerang_rx(), status %4.4x, rx_status "
- "%4.4x.\n",
- inw(ioaddr+EL3_STATUS), inw(ioaddr+RxStatus));
- while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
- if (--rx_work_limit < 0)
- break;
- if (rx_status & RxDError) { /* Error, update stats. */
- unsigned char rx_error = rx_status >> 16;
- if (vortex_debug > 2)
- printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
- vp->stats.rx_errors++;
- if (rx_error & 0x01) vp->stats.rx_over_errors++;
- if (rx_error & 0x02) vp->stats.rx_length_errors++;
- if (rx_error & 0x04) vp->stats.rx_frame_errors++;
- if (rx_error & 0x08) vp->stats.rx_crc_errors++;
- if (rx_error & 0x10) vp->stats.rx_length_errors++;
- } else {
- /* The packet length: up to 4.5K!. */
- int pkt_len = rx_status & 0x1fff;
- struct sk_buff *skb;
-
- if (vortex_debug > 4)
- printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
- pkt_len, rx_status);
-
- /* 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)) != 0) {
- skb->dev = dev;
- skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
- /* 'skb_put()' points to the start of sk_buff data area. */
- memcpy(skb_put(skb, pkt_len),
- bus_to_virt(le32_to_cpu(vp->rx_ring[entry].addr)),
- pkt_len);
- rx_copy++;
- } else {
- void *temp;
- /* Pass up the skbuff already on the Rx ring. */
- skb = vp->rx_skbuff[entry];
- vp->rx_skbuff[entry] = NULL;
- temp = skb_put(skb, pkt_len);
- /* Remove this checking code for final release. */
- if (bus_to_virt(le32_to_cpu(vp->rx_ring[entry].addr)) != temp)
- printk(KERN_ERR "%s: Warning -- the skbuff addresses do not match"
- " in boomerang_rx: %p vs. %p.\n", dev->name,
- bus_to_virt(le32_to_cpu(vp->rx_ring[entry].addr)),
- temp);
- rx_nocopy++;
- }
- skb->protocol = eth_type_trans(skb, dev);
- { /* Use hardware checksum info. */
- int csum_bits = rx_status & 0xee000000;
- if (csum_bits &&
- (csum_bits == (IPChksumValid | TCPChksumValid) ||
- csum_bits == (IPChksumValid | UDPChksumValid))) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- rx_csumhits++;
- }
- }
- netif_rx(skb);
- dev->last_rx = jiffies;
- vp->stats.rx_packets++;
- }
- entry = (++vp->cur_rx) % RX_RING_SIZE;
- }
- /* Refill the Rx ring buffers. */
- for (; vp->dirty_rx < vp->cur_rx; vp->dirty_rx++) {
- struct sk_buff *skb;
- entry = vp->dirty_rx % RX_RING_SIZE;
- if (vp->rx_skbuff[entry] == NULL) {
- skb = dev_alloc_skb(PKT_BUF_SZ);
- if (skb == NULL)
- break; /* Bad news! */
- skb->dev = dev; /* Mark as being used by this device. */
- skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
- vp->rx_ring[entry].addr = cpu_to_le32(virt_to_bus(skb->tail));
- vp->rx_skbuff[entry] = skb;
- }
- vp->rx_ring[entry].status = 0; /* Clear complete bit. */
- outw(UpUnstall, ioaddr + EL3_CMD);
- }
- return 0;
-}
-
-static void
-vortex_down(struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
-
- netif_stop_queue (dev);
-
- del_timer(&vp->timer);
-
- /* Turn off statistics ASAP. We update vp->stats below. */
- outw(StatsDisable, ioaddr + EL3_CMD);
-
- /* Disable the receiver and transmitter. */
- outw(RxDisable, ioaddr + EL3_CMD);
- outw(TxDisable, ioaddr + EL3_CMD);
-
- if (dev->if_port == XCVR_10base2)
- /* Turn off thinnet power. Green! */
- outw(StopCoax, ioaddr + EL3_CMD);
-
- outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
-
- update_stats(ioaddr, dev);
- if (vp->full_bus_master_rx)
- outl(0, ioaddr + UpListPtr);
- if (vp->full_bus_master_tx)
- outl(0, ioaddr + DownListPtr);
-
- if (vp->capabilities & CapPwrMgmt)
- acpi_set_WOL(dev);
-}
-
-static int
-vortex_close(struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
- int i;
-
- if (netif_device_present(dev))
- vortex_down(dev);
-
- if (vortex_debug > 1) {
- printk(KERN_DEBUG"%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
- dev->name, inw(ioaddr + EL3_STATUS), inb(ioaddr + TxStatus));
- printk(KERN_DEBUG "%s: vortex close stats: rx_nocopy %d rx_copy %d"
- " tx_queued %d Rx pre-checksummed %d.\n",
- dev->name, rx_nocopy, rx_copy, queued_packet, rx_csumhits);
- }
-
- free_irq(dev->irq, dev);
-
- if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
- for (i = 0; i < RX_RING_SIZE; i++)
- if (vp->rx_skbuff[i]) {
- dev_kfree_skb(vp->rx_skbuff[i]);
- vp->rx_skbuff[i] = 0;
- }
- }
- if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
- for (i = 0; i < TX_RING_SIZE; i++)
- if (vp->tx_skbuff[i]) {
- dev_kfree_skb(vp->tx_skbuff[i]);
- vp->tx_skbuff[i] = 0;
- }
- }
-
- MOD_DEC_USE_COUNT;
- vp->open = 0;
- return 0;
-}
-
-static struct net_device_stats *vortex_get_stats(struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- unsigned long flags;
-
- if (netif_device_present(dev)) {
- spin_lock_irqsave (&vp->lock, flags);
- update_stats(dev->base_addr, dev);
- spin_unlock_irqrestore (&vp->lock, flags);
- }
- return &vp->stats;
-}
-
-/* Update statistics.
- Unlike with the EL3 we need not worry about interrupts changing
- the window setting from underneath us, but we must still guard
- against a race condition with a StatsUpdate interrupt updating the
- table. This is done by checking that the ASM (!) code generated uses
- atomic updates with '+='.
- */
-static void update_stats(long ioaddr, struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- int old_window = inw(ioaddr + EL3_CMD);
-
- if (old_window == 0xffff) /* Chip suspended or ejected. */
- return;
- /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
- /* Switch to the stats window, and read everything. */
- EL3WINDOW(6);
- vp->stats.tx_carrier_errors += inb(ioaddr + 0);
- vp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
- /* Multiple collisions. */ inb(ioaddr + 2);
- vp->stats.collisions += inb(ioaddr + 3);
- vp->stats.tx_window_errors += inb(ioaddr + 4);
- vp->stats.rx_fifo_errors += inb(ioaddr + 5);
- vp->stats.tx_packets += inb(ioaddr + 6);
- vp->stats.tx_packets += (inb(ioaddr + 9)&0x30) << 4;
- /* Rx packets */ inb(ioaddr + 7); /* Must read to clear */
- /* Tx deferrals */ inb(ioaddr + 8);
- /* Don't bother with register 9, an extension of registers 6&7.
- If we do use the 6&7 values the atomic update assumption above
- is invalid. */
- vp->stats.rx_bytes += inw(ioaddr + 10);
- vp->stats.tx_bytes += inw(ioaddr + 12);
- /* New: On the Vortex we must also clear the BadSSD counter. */
- EL3WINDOW(4);
- inb(ioaddr + 12);
-
- {
- u8 up = inb(ioaddr + 13);
- vp->stats.rx_bytes += (up & 0x0f) << 16;
- vp->stats.tx_bytes += (up & 0xf0) << 12;
- }
-
- /* We change back to window 7 (not 1) with the Vortex. */
- EL3WINDOW(old_window >> 13);
- return;
-}
-
-static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
- u16 *data = (u16 *)&rq->ifr_data;
- int phy = vp->phys[0] & 0x1f;
-
- switch(cmd) {
- case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */
- data[0] = phy;
- case SIOCDEVPRIVATE+1: /* Read the specified MII register. */
- EL3WINDOW(4);
- data[3] = mdio_read(ioaddr, data[0] & 0x1f, data[1] & 0x1f);
- return 0;
- case SIOCDEVPRIVATE+2: /* Write the specified MII register */
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- EL3WINDOW(4);
- mdio_write(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2]);
- return 0;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-/* Pre-Cyclone chips have no documented multicast filter, so the only
- multicast setting is to receive all multicast frames. At least
- the chip has a very clean way to set the mode, unlike many others. */
-static void set_rx_mode(struct net_device *dev)
-{
- long ioaddr = dev->base_addr;
- int new_mode;
-
- if (dev->flags & IFF_PROMISC) {
- if (vortex_debug > 0)
- printk(KERN_NOTICE "%s: Setting promiscuous mode.\n", dev->name);
- new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
- } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
- new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
- } else
- new_mode = SetRxFilter | RxStation | RxBroadcast;
-
- outw(new_mode, ioaddr + EL3_CMD);
-}
-
-/* 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. */
-#define mdio_delay() inl(mdio_addr)
-
-#define MDIO_SHIFT_CLK 0x01
-#define MDIO_DIR_WRITE 0x04
-#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
-#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
-#define MDIO_DATA_READ 0x02
-#define MDIO_ENB_IN 0x00
-
-/* Generate the preamble required for initial synchronization and
- a few older transceivers. */
-static void mdio_sync(long ioaddr, int bits)
-{
- long mdio_addr = ioaddr + Wn4_PhysicalMgmt;
-
- /* Establish sync by sending at least 32 logic ones. */
- while (-- bits >= 0) {
- outw(MDIO_DATA_WRITE1, mdio_addr);
- mdio_delay();
- outw(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
- mdio_delay();
- }
-}
-
-static int mdio_read(long ioaddr, int phy_id, int location)
-{
- int i;
- int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
- unsigned int retval = 0;
- long mdio_addr = ioaddr + Wn4_PhysicalMgmt;
-
- if (mii_preamble_required)
- mdio_sync(ioaddr, 32);
-
- /* Shift the read command bits out. */
- for (i = 14; i >= 0; i--) {
- int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
- outw(dataval, mdio_addr);
- mdio_delay();
- outw(dataval | MDIO_SHIFT_CLK, mdio_addr);
- mdio_delay();
- }
- /* Read the two transition, 16 data, and wire-idle bits. */
- for (i = 19; i > 0; i--) {
- outw(MDIO_ENB_IN, mdio_addr);
- mdio_delay();
- retval = (retval << 1) | ((inw(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
- outw(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
- mdio_delay();
- }
- return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
-}
-
-static void mdio_write(long ioaddr, int phy_id, int location, int value)
-{
- int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
- long mdio_addr = ioaddr + Wn4_PhysicalMgmt;
- int i;
-
- if (mii_preamble_required)
- mdio_sync(ioaddr, 32);
-
- /* Shift the command bits out. */
- for (i = 31; i >= 0; i--) {
- int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
- outw(dataval, mdio_addr);
- mdio_delay();
- outw(dataval | MDIO_SHIFT_CLK, mdio_addr);
- mdio_delay();
- }
- /* Leave the interface idle. */
- for (i = 1; i >= 0; i--) {
- outw(MDIO_ENB_IN, mdio_addr);
- mdio_delay();
- outw(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
- mdio_delay();
- }
-
- return;
-}
-
-/* ACPI: Advanced Configuration and Power Interface. */
-/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
-static void acpi_set_WOL(struct net_device *dev)
-{
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
-
- /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
- EL3WINDOW(7);
- outw(2, ioaddr + 0x0c);
- /* The RxFilter must accept the WOL frames. */
- outw(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
- outw(RxEnable, ioaddr + EL3_CMD);
- /* Change the power state to D3; RxEnable doesn't take effect. */
- pci_write_config_word(vp->pdev, 0xe0, 0x8103);
-}
-
-
-static void __devexit vortex_remove_one (struct pci_dev *pdev)
-{
- struct net_device *dev = pdev->driver_data;
- struct vortex_private *vp;
-
- if (!dev)
- return;
-
- vp = (void *)(dev->priv);
-
- /* No need to check MOD_IN_USE, as sys_delete_module() checks. */
- unregister_netdev(dev);
- outw(TotalReset, dev->base_addr + EL3_CMD);
- release_region(dev->base_addr, vortex_info_tbl[vp->chip_id].io_size);
- kfree(dev);
-}
-
-
-static struct pci_driver vortex_driver = {
- name: "3c575_cb",
- probe: vortex_init_one,
- remove: vortex_remove_one,
- suspend: vortex_suspend,
- resume: vortex_resume,
- id_table: vortex_pci_tbl,
-};
-
-
-static int vortex_have_pci = 0;
-static int vortex_have_eisa = 0;
-
-
-static int __init vortex_init (void)
-{
- int rc;
-
- MOD_INC_USE_COUNT;
-
- rc = pci_module_init (&vortex_driver);
- if (rc < 0)
- goto out;
- if (rc > 0)
- vortex_have_pci = 1;
-
- rc = vortex_eisa_init ();
- if (rc < 0)
- goto out;
- if (rc > 0)
- vortex_have_eisa = 1;
-
-out:
- MOD_DEC_USE_COUNT;
- return rc;
-}
-
-
-static void __exit vortex_eisa_cleanup (void)
-{
- struct net_device *dev, *tmp;
- struct vortex_private *vp;
- long ioaddr;
-
- dev = root_vortex_eisa_dev;
-
- while (dev) {
- vp = dev->priv;
- ioaddr = dev->base_addr;
-
- unregister_netdev (dev);
- outw (TotalReset, ioaddr + EL3_CMD);
- release_region (ioaddr, VORTEX_TOTAL_SIZE);
-
- tmp = dev;
- dev = vp->next_module;
-
- kfree (tmp);
- }
-}
-
-
-static void __exit vortex_cleanup (void)
-{
- if (vortex_have_pci)
- pci_unregister_driver (&vortex_driver);
- if (vortex_have_eisa)
- vortex_eisa_cleanup ();
-}
-
-
-module_init(vortex_init);
-module_exit(vortex_cleanup);
-
-
-
-/*
- * Local variables:
- * compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c 3c575_cb.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
- * SMP-compile-command: "gcc -D__SMP__ -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c 3c575_cb.c"
- * cardbus-compile-command: "gcc -DCONFIG_HOTPLUG -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c 3c575_cb.c -o 3c575_cb.o -I/usr/src/linux/pcmcia-cs-3.0.9/include/"
- * 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)