3c59x.c
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- /* 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 General 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.
- Problem reports and questions should be directed to
- vortex@scyld.com
- The author may be reached as becker@scyld.com, or C/O
- Scyld Computing Corporation
- 410 Severn Ave., Suite 210
- Annapolis MD 21403
- Linux Kernel Additions:
-
- 0.99H+lk0.9 - David S. Miller - softnet, PCI DMA updates
- 0.99H+lk1.0 - Jeff Garzik <jgarzik@mandrakesoft.com>
- Remove compatibility defines for kernel versions < 2.2.x.
- Update for new 2.3.x module interface
- LK1.1.2 (March 19, 2000)
- * New PCI interface (jgarzik)
- LK1.1.3 25 April 2000, Andrew Morton <andrewm@uow.edu.au>
- - Merged with 3c575_cb.c
- - Don't set RxComplete in boomerang interrupt enable reg
- - spinlock in vortex_timer to protect mdio functions
- - disable local interrupts around call to vortex_interrupt in
- vortex_tx_timeout() (So vortex_interrupt can use spin_lock())
- - Select window 3 in vortex_timer()'s write to Wn3_MAC_Ctrl
- - In vortex_start_xmit(), move the lock to _after_ we've altered
- vp->cur_tx and vp->tx_full. This defeats the race between
- vortex_start_xmit() and vortex_interrupt which was identified
- by Bogdan Costescu.
- - Merged back support for six new cards from various sources
- - Set vortex_have_pci if pci_module_init returns zero (fixes cardbus
- insertion oops)
- - Tell it that 3c905C has NWAY for 100bT autoneg
- - Fix handling of SetStatusEnd in 'Too much work..' code, as
- per 2.3.99's 3c575_cb (Dave Hinds).
- - Split ISR into two for vortex & boomerang
- - Fix MOD_INC/DEC races
- - Handle resource allocation failures.
- - Fix 3CCFE575CT LED polarity
- - Make tx_interrupt_mitigation the default
- LK1.1.4 25 April 2000, Andrew Morton <andrewm@uow.edu.au>
- - Add extra TxReset to vortex_up() to fix 575_cb hotplug initialisation probs.
- - Put vortex_info_tbl into __devinitdata
- - In the vortex_error StatsFull HACK, disable stats in vp->intr_enable as well
- as in the hardware.
- - Increased the loop counter in issue_and_wait from 2,000 to 4,000.
- LK1.1.5 28 April 2000, andrewm
- - Added powerpc defines (John Daniel <jdaniel@etresoft.com> said these work...)
- - Some extra diagnostics
- - In vortex_error(), reset the Tx on maxCollisions. Otherwise most
- chips usually get a Tx timeout.
- - Added extra_reset module parm
- - Replaced some inline timer manip with mod_timer
- (Franois romieu <Francois.Romieu@nic.fr>)
- - In vortex_up(), don't make Wn3_config initialisation dependent upon has_nway
- (this came across from 3c575_cb).
- LK1.1.6 06 Jun 2000, andrewm
- - Backed out the PPC defines.
- - Use del_timer_sync(), mod_timer().
- - Fix wrapped ulong comparison in boomerang_rx()
- - Add IS_TORNADO, use it to suppress 3c905C checksum error msg
- (Donald Becker, I Lee Hetherington <ilh@sls.lcs.mit.edu>)
- - Replace union wn3_config with BFINS/BFEXT manipulation for
- sparc64 (Pete Zaitcev, Peter Jones)
- - In vortex_error, do_tx_reset and vortex_tx_timeout(Vortex):
- do a netif_wake_queue() to better recover from errors. (Anders Pedersen,
- Donald Becker)
- - Print a warning on out-of-memory (rate limited to 1 per 10 secs)
- - Added two more Cardbus 575 NICs: 5b57 and 6564 (Paul Wagland)
- LK1.1.7 2 Jul 2000 andrewm
- - Better handling of shared IRQs
- - Reset the transmitter on a Tx reclaim error
- - Fixed crash under OOM during vortex_open() (Mark Hemment)
- - Fix Rx cessation problem during OOM (help from Mark Hemment)
- - The spinlocks around the mdio access were blocking interrupts for 300uS.
- Fix all this to use spin_lock_bh() within mdio_read/write
- - Only write to TxFreeThreshold if it's a boomerang - other NICs don't
- have one.
- - Added 802.3x MAC-layer flow control support
- LK1.1.8 13 Aug 2000 andrewm
- - Ignore request_region() return value - already reserved if Cardbus.
- - Merged some additional Cardbus flags from Don's 0.99Qk
- - Some fixes for 3c556 (Fred Maciel)
- - Fix for EISA initialisation (Jan Rekorajski)
- - Renamed MII_XCVR_PWR and EEPROM_230 to align with 3c575_cb and D. Becker's drivers
- - Fixed MII_XCVR_PWR for 3CCFE575CT
- - Added INVERT_LED_PWR, used it.
- - Backed out the extra_reset stuff
- LK1.1.9 12 Sep 2000 andrewm
- - Backed out the tx_reset_resume flags. It was a no-op.
- - In vortex_error, don't reset the Tx on txReclaim errors
- - In vortex_error, don't reset the Tx on maxCollisions errors.
- Hence backed out all the DownListPtr logic here.
- - In vortex_error, give Tornado cards a partial TxReset on
- maxCollisions (David Hinds). Defined MAX_COLLISION_RESET for this.
- - Redid some driver flags and device names based on pcmcia_cs-3.1.20.
- - Fixed a bug where, if vp->tx_full is set when the interface
- is downed, it remains set when the interface is upped. Bad
- things happen.
- LK1.1.10 17 Sep 2000 andrewm
- - Added EEPROM_8BIT for 3c555 (Fred Maciel)
- - Added experimental support for the 3c556B Laptop Hurricane (Louis Gerbarg)
- - Add HAS_NWAY to "3c900 Cyclone 10Mbps TPO"
- LK1.1.11 13 Nov 2000 andrewm
- - Dump MOD_INC/DEC_USE_COUNT, use SET_MODULE_OWNER
- LK1.1.12 1 Jan 2001 andrewm (2.4.0-pre1)
- - Call pci_enable_device before we request our IRQ (Tobias Ringstrom)
- - Add 3c590 PCI latency timer hack to vortex_probe1 (from 0.99Ra)
- - Added extended issue_and_wait for the 3c905CX.
- - Look for an MII on PHY index 24 first (3c905CX oddity).
- - Add HAS_NWAY to 3cSOHO100-TX (Brett Frankenberger)
- - Don't free skbs we don't own on oom path in vortex_open().
- LK1.1.13 27 Jan 2001
- - Added explicit `medialock' flag so we can truly
- lock the media type down with `options'.
- - "check ioremap return and some tidbits" (Arnaldo Carvalho de Melo <acme@conectiva.com.br>)
- - Added and used EEPROM_NORESET for 3c556B PM resumes.
- - Fixed leakage of vp->rx_ring.
- - Break out separate HAS_HWCKSM device capability flag.
- - Kill vp->tx_full (ANK)
- - Merge zerocopy fragment handling (ANK?)
- LK1.1.14 15 Feb 2001
- - Enable WOL. Can be turned on with `enable_wol' module option.
- - EISA and PCI initialisation fixes (jgarzik, Manfred Spraul)
- - If a device's internalconfig register reports it has NWAY,
- use it, even if autoselect is enabled.
- LK1.1.15 6 June 2001 akpm
- - Prevent double counting of received bytes (Lars Christensen)
- - Add ethtool support (jgarzik)
- - Add module parm descriptions (Andrzej M. Krzysztofowicz)
- - Implemented alloc_etherdev() API
- - Special-case the 'Tx error 82' message.
- LK1.1.16 18 July 2001 akpm
- - Make NETIF_F_SG dependent upon nr_free_highpages(), not on CONFIG_HIGHMEM
- - Lessen verbosity of bootup messages
- - Fix WOL - use new PM API functions.
- - Use netif_running() instead of vp->open in suspend/resume.
- - Don't reset the interface logic on open/close/rmmod. It upsets
- autonegotiation, and hence DHCP (from 0.99T).
- - Back out EEPROM_NORESET flag because of the above (we do it for all
- NICs).
- - Correct 3c982 identification string
- - Rename wait_for_completion() to issue_and_wait() to avoid completion.h
- clash.
- - See http://www.uow.edu.au/~andrewm/linux/#3c59x-2.3 for more details.
- - Also see Documentation/networking/vortex.txt
- */
- /*
- * FIXME: This driver _could_ support MTU changing, but doesn't. See Don's hamachi.c implementation
- * as well as other drivers
- *
- * NOTE: If you make 'vortex_debug' a constant (#define vortex_debug 0) the driver shrinks by 2k
- * due to dead code elimination. There will be some performance benefits from this due to
- * elimination of all the tests and reduced cache footprint.
- */
- #define DRV_NAME "3c59x"
- #define DRV_VERSION "LK1.1.16"
- #define DRV_RELDATE "19 July 2001"
- /* A few values that may be tweaked. */
- /* 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.*/
- /* "Knobs" that adjust features and parameters. */
- /* Set the copy breakpoint for the copy-only-tiny-frames scheme.
- Setting to > 1512 effectively disables this feature. */
- #ifndef __arm__
- static const int rx_copybreak = 200;
- #else
- /* ARM systems perform better by disregarding the bus-master
- transfer capability of these cards. -- rmk */
- static const int rx_copybreak = 1513;
- #endif
- /* 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;
- /* Tx timeout interval (millisecs) */
- static int watchdog = 5000;
- /* Allow aggregation of Tx interrupts. Saves CPU load at the cost
- * of possible Tx stalls if the system is blocking interrupts
- * somewhere else. Undefine this to disable.
- */
- #define tx_interrupt_mitigation 1
- /* 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
- #ifndef __OPTIMIZE__
- #error You must compile this file with the correct options!
- #error See the last lines of the source file.
- #error You must compile this driver with "-O".
- #endif
- #include <linux/config.h>
- #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/slab.h>
- #include <linux/interrupt.h>
- #include <linux/pci.h>
- #include <linux/mii.h>
- #include <linux/init.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/skbuff.h>
- #include <linux/ethtool.h>
- #include <linux/highmem.h>
- #include <asm/irq.h> /* For NR_IRQS only. */
- #include <asm/bitops.h>
- #include <asm/io.h>
- #include <asm/uaccess.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>
- static char version[] __devinitdata =
- DRV_NAME ": Donald Becker and others. www.scyld.com/network/vortex.htmln";
- MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
- MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver "
- DRV_VERSION " " DRV_RELDATE);
- MODULE_LICENSE("GPL");
- MODULE_PARM(debug, "i");
- MODULE_PARM(options, "1-" __MODULE_STRING(8) "i");
- MODULE_PARM(full_duplex, "1-" __MODULE_STRING(8) "i");
- MODULE_PARM(hw_checksums, "1-" __MODULE_STRING(8) "i");
- MODULE_PARM(flow_ctrl, "1-" __MODULE_STRING(8) "i");
- MODULE_PARM(enable_wol, "1-" __MODULE_STRING(8) "i");
- MODULE_PARM(rx_copybreak, "i");
- MODULE_PARM(max_interrupt_work, "i");
- MODULE_PARM(compaq_ioaddr, "i");
- MODULE_PARM(compaq_irq, "i");
- MODULE_PARM(compaq_device_id, "i");
- MODULE_PARM(watchdog, "i");
- MODULE_PARM_DESC(debug, "3c59x debug level (0-6)");
- MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex");
- MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)");
- MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)");
- MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)");
- MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)");
- MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames");
- MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt");
- MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)");
- MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)");
- MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)");
- MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds");
- /* 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;
- #define PFX DRV_NAME ": "
- /*
- 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, IS_TORNADO=8,
- EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */
- HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100,
- INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800,
- EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000 };
- enum vortex_chips {
- CH_3C590 = 0,
- CH_3C592,
- CH_3C597,
- CH_3C595_1,
- CH_3C595_2,
- CH_3C595_3,
- CH_3C900_1,
- CH_3C900_2,
- CH_3C900_3,
- CH_3C900_4,
- CH_3C900_5,
- CH_3C900B_FL,
- CH_3C905_1,
- CH_3C905_2,
- CH_3C905B_1,
- CH_3C905B_2,
- CH_3C905B_FX,
- CH_3C905C,
- CH_3C980,
- CH_3C9805,
- CH_3CSOHO100_TX,
- CH_3C555,
- CH_3C556,
- CH_3C556B,
- CH_3C575,
- CH_3C575_1,
- CH_3CCFE575,
- CH_3CCFE575CT,
- CH_3CCFE656,
- CH_3CCFEM656,
- CH_3CCFEM656_1,
- CH_3C450,
- };
- /* 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[] __devinitdata = {
- #define EISA_TBL_OFFSET 0 /* Offset of this entry for vortex_eisa_init */
- {"3c590 Vortex 10Mbps",
- PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
- {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
- PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, },
- {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
- 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, },
- {"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 TPO", /* AKPM: from Don's 0.99M */
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
- {"3c900 Cyclone 10Mbps Combo",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
- {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
- {"3c900B-FL Cyclone 10base-FL",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 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|HAS_HWCKSM, 128, },
- {"3c905B Cyclone 10/100/BNC",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
- {"3c905B-FX Cyclone 100baseFx",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
- {"3c905C Tornado",
- PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
- {"3c980 Cyclone",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
- {"3c982 Dual Port Server Cyclone",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
- {"3cSOHO100-TX Hurricane",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
- {"3c555 Laptop Hurricane",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, },
- {"3c556 Laptop Tornado",
- PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR|
- HAS_HWCKSM, 128, },
- {"3c556B Laptop Hurricane",
- PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR|
- HAS_HWCKSM, 128, },
- {"3c575 [Megahertz] 10/100 LAN CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
- {"3c575 Boomerang CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
- {"3CCFE575BT Cyclone CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|
- INVERT_LED_PWR|HAS_HWCKSM, 128, },
- {"3CCFE575CT Tornado CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
- MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
- {"3CCFE656 Cyclone CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
- INVERT_LED_PWR|HAS_HWCKSM, 128, },
- {"3CCFEM656B Cyclone+Winmodem CardBus",
- PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
- INVERT_LED_PWR|HAS_HWCKSM, 128, },
- {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */
- PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
- MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
- {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */
- PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
- {0,}, /* 0 terminated list. */
- };
- static struct pci_device_id vortex_pci_tbl[] __devinitdata = {
- { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
- { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 },
- { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 },
- { 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, 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, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
- { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 },
- { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 },
- { 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, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 },
- { 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, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 },
- { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B },
- { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 },
- { 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, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 },
- { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 },
- {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,
- };
- #define BFEXT(value, offset, bitcount)
- ((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1))
- #define BFINS(lhs, rhs, offset, bitcount)
- (((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) |
- (((rhs) & ((1 << (bitcount)) - 1)) << (offset)))
- #define RAM_SIZE(v) BFEXT(v, 0, 3)
- #define RAM_WIDTH(v) BFEXT(v, 3, 1)
- #define RAM_SPEED(v) BFEXT(v, 4, 2)
- #define ROM_SIZE(v) BFEXT(v, 6, 2)
- #define RAM_SPLIT(v) BFEXT(v, 16, 2)
- #define XCVR(v) BFEXT(v, 20, 4)
- #define AUTOSELECT(v) BFEXT(v, 24, 1)
- 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. */
- #define DN_COMPLETE 0x00010000 /* This packet has been downloaded */
- 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,
- };
- #ifdef MAX_SKB_FRAGS
- #define DO_ZEROCOPY 1
- #else
- #define DO_ZEROCOPY 0
- #endif
- struct boom_tx_desc {
- u32 next; /* Last entry points to 0. */
- s32 status; /* bits 0:12 length, others see below. */
- #if DO_ZEROCOPY
- struct {
- u32 addr;
- s32 length;
- } frag[1+MAX_SKB_FRAGS];
- #else
- u32 addr;
- s32 length;
- #endif
- };
- /* 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;
- struct boom_tx_desc* tx_ring;
- dma_addr_t rx_ring_dma;
- dma_addr_t tx_ring_dma;
- /* 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 */
- 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. */
- dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */
- /* PCI configuration space information. */
- struct pci_dev *pdev;
- char *cb_fn_base; /* CardBus function status addr space. */
- /* Some values here only for performance evaluation and path-coverage */
- int rx_nocopy, rx_copy, queued_packet, rx_csumhits;
- int card_idx;
- /* The remainder are related to chip state, mostly media selection. */
- struct timer_list timer; /* Media selection timer. */
- struct timer_list rx_oom_timer; /* Rx skb allocation retry 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 */
- flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */
- partner_flow_ctrl:1, /* Partner supports flow control */
- has_nway:1,
- enable_wol:1, /* Wake-on-LAN is enabled */
- pm_state_valid:1, /* power_state[] has sane contents */
- open:1,
- medialock:1,
- must_free_region:1; /* Flag: if zero, Cardbus owns the I/O region */
- int drv_flags;
- 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; /* Resend these interrupts when we
- * bale from the ISR */
- u16 io_size; /* Size of PCI region (for release_region) */
- spinlock_t lock; /* Serialise access to device & its vortex_private */
- spinlock_t mdio_lock; /* Serialise access to mdio hardware */
- u32 power_state[16];
- };
- /* 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(struct net_device *dev, int phy_id, int location);
- static void mdio_write(struct net_device *vp, int phy_id, int location, int value);
- static void vortex_timer(unsigned long arg);
- static void rx_oom_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 void boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs);
- static int vortex_close(struct net_device *dev);
- static void dump_tx_ring(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};
- static int hw_checksums[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
- static int flow_ctrl[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
- static int enable_wol[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
- /* #define dev_alloc_skb dev_alloc_skb_debug */
- /* A list of all installed Vortex EISA devices, for removing the driver module. */
- static struct net_device *root_vortex_eisa_dev;
- /* Variables to work-around the Compaq PCI BIOS32 problem. */
- static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900;
- static int vortex_cards_found;
- #ifdef CONFIG_PM
- static int vortex_suspend (struct pci_dev *pdev, u32 state)
- {
- struct net_device *dev = pci_get_drvdata(pdev);
- if (dev && dev->priv) {
- if (netif_running(dev)) {
- netif_device_detach(dev);
- vortex_down(dev);
- }
- }
- return 0;
- }
- static int vortex_resume (struct pci_dev *pdev)
- {
- struct net_device *dev = pci_get_drvdata(pdev);
- if (dev && dev->priv) {
- if (netif_running(dev)) {
- vortex_up(dev);
- netif_device_attach(dev);
- }
- }
- return 0;
- }
- #endif /* CONFIG_PM */
- /* 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, DRV_NAME) == 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,
- EISA_TBL_OFFSET, vortex_cards_found);
- if (rc == 0)
- vortex_cards_found++;
- else
- release_region (ioaddr, VORTEX_TOTAL_SIZE);
- }
- /* Special code to work-around the Compaq PCI BIOS32 problem. */
- if (compaq_ioaddr) {
- vortex_probe1(NULL, compaq_ioaddr, compaq_irq,
- compaq_device_id, vortex_cards_found++);
- }
- 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;
- /* wake up and enable device */
- if (pci_enable_device (pdev)) {
- rc = -EIO;
- } else {
- 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;
- }
- /*
- * Start up the PCI device which is described by *pdev.
- * Return 0 on success.
- *
- * 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, step;
- struct net_device *dev;
- static int printed_version;
- int retval, print_info;
- struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx];
- char *print_name;
- if (!printed_version) {
- printk (version);
- printed_version = 1;
- }
- print_name = pdev ? pdev->slot_name : "3c59x";
- dev = alloc_etherdev(sizeof(*vp));
- retval = -ENOMEM;
- if (!dev) {
- printk (KERN_ERR PFX "unable to allocate etherdev, abortingn");
- goto out;
- }
- SET_MODULE_OWNER(dev);
- vp = dev->priv;
- /* The lower four bits are the media type. */
- if (dev->mem_start) {
- /*
- * The 'options' param is passed in as the third arg to the
- * LILO 'ether=' argument for non-modular use
- */
- option = dev->mem_start;
- }
- else if (card_idx < MAX_UNITS)
- option = options[card_idx];
- else
- option = -1;
- if (option > 0) {
- if (option & 0x8000)
- vortex_debug = 7;
- if (option & 0x4000)
- vortex_debug = 2;
- if (option & 0x0400)
- vp->enable_wol = 1;
- }
- print_info = (vortex_debug > 1);
- if (print_info)
- printk (KERN_INFO "See Documentation/networking/vortex.txtn");
- printk(KERN_INFO "%s: 3Com %s %s at 0x%lx. Vers " DRV_VERSION "n",
- print_name,
- pdev ? "PCI" : "EISA",
- vci->name,
- ioaddr);
- dev->base_addr = ioaddr;
- dev->irq = irq;
- dev->mtu = mtu;
- vp->drv_flags = vci->drv_flags;
- vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0;
- vp->io_size = vci->io_size;
- vp->card_idx = card_idx;
- /* 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 */
- /* Ignore return value, because Cardbus drivers already allocate for us */
- if (request_region(ioaddr, vci->io_size, print_name) != NULL)
- vp->must_free_region = 1;
- /* enable bus-mastering if necessary */
- if (vci->flags & PCI_USES_MASTER)
- pci_set_master (pdev);
- if (vci->drv_flags & IS_VORTEX) {
- u8 pci_latency;
- u8 new_latency = 248;
- /* Check the PCI latency value. On the 3c590 series the latency timer
- must be set to the maximum value to avoid data corruption that occurs
- when the timer expires during a transfer. This bug exists the Vortex
- chip only. */
- pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
- if (pci_latency < new_latency) {
- printk(KERN_INFO "%s: Overriding PCI latency"
- " timer (CFLT) setting of %d, new value is %d.n",
- print_name, pci_latency, new_latency);
- pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
- }
- }
- }
- spin_lock_init(&vp->lock);
- spin_lock_init(&vp->mdio_lock);
- vp->pdev = pdev;
- /* Makes sure rings are at least 16 byte aligned. */
- vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
- + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
- &vp->rx_ring_dma);
- retval = -ENOMEM;
- if (vp->rx_ring == 0)
- goto free_region;
- vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE);
- vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE;
- /* if we are a PCI driver, we store info in pdev->driver_data
- * instead of a module list */
- if (pdev)
- pci_set_drvdata(pdev, dev);
- vp->media_override = 7;
- if (option >= 0) {
- vp->media_override = ((option & 7) == 2) ? 0 : option & 15;
- if (vp->media_override != 7)
- vp->medialock = 1;
- vp->full_duplex = (option & 0x200) ? 1 : 0;
- vp->bus_master = (option & 16) ? 1 : 0;
- }
- if (card_idx < MAX_UNITS) {
- if (full_duplex[card_idx] > 0)
- vp->full_duplex = 1;
- if (flow_ctrl[card_idx] > 0)
- vp->flow_ctrl = 1;
- if (enable_wol[card_idx] > 0)
- vp->enable_wol = 1;
- }
- vp->force_fd = vp->full_duplex;
- vp->options = option;
- /* Read the station address from the EEPROM. */
- EL3WINDOW(0);
- {
- int base;
- if (vci->drv_flags & EEPROM_8BIT)
- base = 0x230;
- else if (vci->drv_flags & EEPROM_OFFSET)
- base = EEPROM_Read + 0x30;
- else
- base = EEPROM_Read;
- for (i = 0; i < 0x40; i++) {
- int timer;
- outw(base + i, ioaddr + Wn0EepromCmd);
- /* 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) && !(vci->drv_flags & IS_TORNADO))
- printk(" ***INVALID CHECKSUM %4.4x*** ", checksum);
- for (i = 0; i < 3; i++)
- ((u16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
- if (print_info) {
- 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__
- if (print_info)
- printk(", IRQ %sn", __irq_itoa(dev->irq));
- #else
- if (print_info)
- printk(", IRQ %dn", dev->irq);
- /* Tell them about an invalid IRQ. */
- if (dev->irq <= 0 || dev->irq >= NR_IRQS)
- printk(KERN_WARNING " *** Warning: IRQ %d is unlikely to work! ***n",
- dev->irq);
- #endif
- EL3WINDOW(4);
- step = (inb(ioaddr + Wn4_NetDiag) & 0x1e) >> 1;
- if (print_info) {
- printk(KERN_INFO " product code %02x%02x rev %02x.%d date %02d-"
- "%02d-%02dn", eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
- step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9);
- }
- if (pdev && vci->drv_flags & HAS_CB_FNS) {
- unsigned long fn_st_addr; /* Cardbus function status space */
- unsigned short n;
- fn_st_addr = pci_resource_start (pdev, 2);
- if (fn_st_addr) {
- vp->cb_fn_base = ioremap(fn_st_addr, 128);
- retval = -ENOMEM;
- if (!vp->cb_fn_base)
- goto free_ring;
- }
- if (print_info) {
- printk(KERN_INFO "%s: CardBus functions mapped %8.8lx->%pn",
- print_name, fn_st_addr, vp->cb_fn_base);
- }
- EL3WINDOW(2);
- n = inw(ioaddr + Wn2_ResetOptions) & ~0x4010;
- if (vp->drv_flags & INVERT_LED_PWR)
- n |= 0x10;
- if (vp->drv_flags & INVERT_MII_PWR)
- n |= 0x4000;
- outw(n, ioaddr + Wn2_ResetOptions);
- }
- /* 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;
- if (print_info)
- printk(KERN_INFO "Full duplex capablen");
- }
- {
- static const char * ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
- unsigned int config;
- EL3WINDOW(3);
- vp->available_media = inw(ioaddr + Wn3_Options);
- if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
- vp->available_media = 0x40;
- config = inl(ioaddr + Wn3_Config);
- if (print_info) {
- printk(KERN_DEBUG " Internal config register is %4.4x, "
- "transceivers %#x.n", config, inw(ioaddr + Wn3_Options));
- printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.n",
- 8 << RAM_SIZE(config),
- RAM_WIDTH(config) ? "word" : "byte",
- ram_split[RAM_SPLIT(config)],
- AUTOSELECT(config) ? "autoselect/" : "",
- XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" :
- media_tbl[XCVR(config)].name);
- }
- vp->default_media = XCVR(config);
- if (vp->default_media == XCVR_NWAY)
- vp->has_nway = 1;
- vp->autoselect = AUTOSELECT(config);
- }
- if (vp->media_override != 7) {
- printk(KERN_INFO "%s: Media override to transceiver type %d (%s).n",
- print_name, 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(dev, 24, 1);
- for (phy = 0; phy < 32 && phy_idx < 1; phy++) {
- int mii_status, phyx;
- /*
- * For the 3c905CX we look at index 24 first, because it bogusly
- * reports an external PHY at all indices
- */
- if (phy == 0)
- phyx = 24;
- else if (phy <= 24)
- phyx = phy - 1;
- else
- phyx = phy;
- mii_status = mdio_read(dev, phyx, 1);
- if (mii_status && mii_status != 0xffff) {
- vp->phys[phy_idx++] = phyx;
- if (print_info) {
- 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(dev, vp->phys[0], 4);
- if (vp->full_duplex) {
- /* Only advertise the FD media types. */
- vp->advertising &= ~0x02A0;
- mdio_write(dev, vp->phys[0], 4, vp->advertising);
- }
- }
- }
- if (vp->capabilities & CapBusMaster) {
- vp->full_bus_master_tx = 1;
- if (print_info) {
- 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;
- vp->bus_master = 0; /* AKPM: vortex only */
- }
- /* The 3c59x-specific entries in the device structure. */
- dev->open = vortex_open;
- if (vp->full_bus_master_tx) {
- dev->hard_start_xmit = boomerang_start_xmit;
- /* Actually, it still should work with iommu. */
- dev->features |= NETIF_F_SG;
- if (((hw_checksums[card_idx] == -1) && (vp->drv_flags & HAS_HWCKSM)) ||
- (hw_checksums[card_idx] == 1)) {
- dev->features |= NETIF_F_IP_CSUM;
- }
- } else {
- dev->hard_start_xmit = vortex_start_xmit;
- }
- if (print_info) {
- printk(KERN_INFO "%s: scatter/gather %sabled. h/w checksums %sabledn",
- print_name,
- (dev->features & NETIF_F_SG) ? "en":"dis",
- (dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
- }
- 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 = (watchdog * HZ) / 1000;
- if (pdev && vp->enable_wol) {
- vp->pm_state_valid = 1;
- pci_save_state(vp->pdev, vp->power_state);
- acpi_set_WOL(dev);
- }
- retval = register_netdev(dev);
- if (retval == 0)
- return 0;
- free_ring:
- pci_free_consistent(pdev,
- sizeof(struct boom_rx_desc) * RX_RING_SIZE
- + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
- vp->rx_ring,
- vp->rx_ring_dma);
- free_region:
- if (vp->must_free_region)
- release_region(ioaddr, vci->io_size);
- kfree (dev);
- printk(KERN_ERR PFX "vortex_probe1 fails. Returns %dn", retval);
- out:
- return retval;
- }
- static void
- issue_and_wait(struct net_device *dev, int cmd)
- {
- int i;
- outw(cmd, dev->base_addr + EL3_CMD);
- for (i = 0; i < 2000; i++) {
- if (!(inw(dev->base_addr + EL3_STATUS) & CmdInProgress))
- return;
- }
- /* OK, that didn't work. Do it the slow way. One second */
- for (i = 0; i < 100000; i++) {
- if (!(inw(dev->base_addr + EL3_STATUS) & CmdInProgress)) {
- if (vortex_debug > 1)
- printk(KERN_INFO "%s: command 0x%04x took %d usecsn",
- dev->name, cmd, i * 10);
- return;
- }
- udelay(10);
- }
- printk(KERN_ERR "%s: command 0x%04x did not complete! Status=0x%xn",
- dev->name, cmd, inw(dev->base_addr + EL3_STATUS));
- }
- static void
- vortex_up(struct net_device *dev)
- {
- long ioaddr = dev->base_addr;
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- unsigned int config;
- int i;
- if (vp->pdev && vp->enable_wol) {
- pci_set_power_state(vp->pdev, 0); /* Go active */
- pci_restore_state(vp->pdev, vp->power_state);
- }
- /* Before initializing select the active media port. */
- EL3WINDOW(3);
- config = inl(ioaddr + Wn3_Config);
- if (vp->media_override != 7) {
- 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 (vp->has_nway) {
- if (vortex_debug > 1)
- printk(KERN_INFO "%s: using NWAY device table, not %dn",
- dev->name, dev->if_port);
- 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;
- if (vortex_debug > 1)
- printk(KERN_INFO "%s: first available media type: %sn",
- dev->name, media_tbl[dev->if_port].name);
- }
- } else {
- dev->if_port = vp->default_media;
- if (vortex_debug > 1)
- printk(KERN_INFO "%s: using default media %sn",
- dev->name, media_tbl[dev->if_port].name);
- }
- 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);
- init_timer(&vp->rx_oom_timer);
- vp->rx_oom_timer.data = (unsigned long)dev;
- vp->rx_oom_timer.function = rx_oom_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 = BFINS(config, dev->if_port, 20, 4);
- if (vortex_debug > 6)
- printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfign", config);
- outl(config, 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(dev, vp->phys[0], 1);
- mii_reg5 = mdio_read(dev, 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;
- vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
- if (vortex_debug > 1)
- printk(KERN_INFO "%s: MII #%d status %4.4x, link partner capability %4.4x,"
- " info1 %04x, setting %s-duplex.n",
- dev->name, vp->phys[0],
- mii_reg1, mii_reg5,
- vp->info1, ((vp->info1 & 0x8000) || vp->full_duplex) ? "full" : "half");
- EL3WINDOW(3);
- }
- /* Set the full-duplex bit. */
- outw( ((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
- (dev->mtu > 1500 ? 0x40 : 0) |
- ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? 0x100 : 0),
- ioaddr + Wn3_MAC_Ctrl);
- if (vortex_debug > 1) {
- printk(KERN_DEBUG "%s: vortex_up() InternalConfig %8.8x.n",
- dev->name, config);
- }
- issue_and_wait(dev, TxReset);
- /*
- * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
- */
- issue_and_wait(dev, RxReset|0x04);
- outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
- if (vortex_debug > 1) {
- EL3WINDOW(4);
- printk(KERN_DEBUG "%s: vortex_up() 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) {
- unsigned short n = inw(ioaddr + Wn2_ResetOptions) & ~0x4010;
- if (vp->drv_flags & INVERT_LED_PWR)
- n |= 0x10;
- if (vp->drv_flags & INVERT_MII_PWR)
- 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(vp->rx_ring_dma, ioaddr + UpListPtr);
- }
- if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
- vp->cur_tx = vp->dirty_tx = 0;
- if (vp->drv_flags & IS_BOOMERANG)
- outb(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
- /* Clear the Rx, Tx rings. */
- for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
- 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. */
- // issue_and_wait(dev, SetTxStart|0x07ff);
- 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 |
- (vp->full_bus_master_rx ? 0 : 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);
- netif_start_queue (dev);
- }
- static int
- vortex_open(struct net_device *dev)
- {
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- int i;
- int retval;
- /* Use the now-standard shared IRQ implementation. */
- if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
- &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev))) {
- printk(KERN_ERR "%s: Could not reserve IRQ %dn", dev->name, dev->irq);
- goto out;
- }
- 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(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (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(pci_map_single(vp->pdev, skb->tail, PKT_BUF_SZ, PCI_DMA_FROMDEVICE));
- }
- if (i != RX_RING_SIZE) {
- int j;
- printk(KERN_EMERG "%s: no memory for rx ringn", dev->name);
- for (j = 0; j < i; j++) {
- if (vp->rx_skbuff[j]) {
- dev_kfree_skb(vp->rx_skbuff[j]);
- vp->rx_skbuff[j] = 0;
- }
- }
- retval = -ENOMEM;
- goto out_free_irq;
- }
- /* Wrap the ring. */
- vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
- }
- vortex_up(dev);
- return 0;
- out_free_irq:
- free_irq(dev->irq, dev);
- out:
- if (vortex_debug > 1)
- printk(KERN_ERR "%s: vortex_open() fails: returning %dn", dev->name, retval);
- return retval;
- }
- 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 > 2) {
- printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.n",
- dev->name, media_tbl[dev->if_port].name);
- printk(KERN_DEBUG "dev->watchdog_timeo=%dn", dev->watchdog_timeo);
- }
- if (vp->medialock)
- goto leave_media_alone;
- 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 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(dev, vp->phys[0], 1);
- ok = 1;
- if (vortex_debug > 2)
- printk(KERN_DEBUG "%s: MII transceiver has status %4.4x.n",
- dev->name, mii_status);
- if (mii_status & 0x0004) {
- int mii_reg5 = mdio_read(dev, 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);
- outw( (vp->full_duplex ? 0x20 : 0) |
- (dev->mtu > 1500 ? 0x40 : 0) |
- ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? 0x100 : 0),
- ioaddr + Wn3_MAC_Ctrl);
- if (vortex_debug > 1)
- printk(KERN_DEBUG "Setting duplex in Wn3_MAC_Ctrln");
- /* AKPM: bug: should reset Tx and Rx after setting Duplex. Page 180 */
- }
- }
- }
- }
- break;
- default: /* Other media types handled by Tx timeouts. */
- if (vortex_debug > 1)
- printk(KERN_DEBUG "%s: Media %s has no indication, %x.n",
- dev->name, media_tbl[dev->if_port].name, media_status);
- ok = 1;
- }
- if ( ! ok) {
- unsigned int 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 = inl(ioaddr + Wn3_Config);
- config = BFINS(config, dev->if_port, 20, 4);
- outl(config, ioaddr + Wn3_Config);
- outw(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
- ioaddr + EL3_CMD);
- if (vortex_debug > 1)
- printk(KERN_DEBUG "wrote 0x%08x to Wn3_Confign", config);
- /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
- }
- EL3WINDOW(old_window);
- enable_irq(dev->irq);
- leave_media_alone:
- if (vortex_debug > 2)
- printk(KERN_DEBUG "%s: Media selection timer finished, %s.n",
- dev->name, media_tbl[dev->if_port].name);
- mod_timer(&vp->timer, RUN_AT(next_tick));
- 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));
- EL3WINDOW(4);
- printk(KERN_ERR " diagnostics: net %04x media %04x dma %8.8x.n",
- inw(ioaddr + Wn4_NetDiag), inw(ioaddr + Wn4_Media),
- inl(ioaddr + PktStatus));
- /* 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. */
- {
- /*
- * Block interrupts because vortex_interrupt does a bare spin_lock()
- */
- unsigned long flags;
- local_irq_save(flags);
- if (vp->full_bus_master_tx)
- boomerang_interrupt(dev->irq, dev, 0);
- else
- vortex_interrupt(dev->irq, dev, 0);
- local_irq_restore(flags);
- }
- }
- if (vortex_debug > 0)
- dump_tx_ring(dev);
- issue_and_wait(dev, TxReset);
- vp->stats.tx_errors++;
- if (vp->full_bus_master_tx) {
- 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(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
- ioaddr + DownListPtr);
- if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
- netif_wake_queue (dev);
- if (vp->drv_flags & IS_BOOMERANG)
- outb(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
- outw(DownUnstall, ioaddr + EL3_CMD);
- } else {
- vp->stats.tx_dropped++;
- netif_wake_queue(dev);
- }
-
- /* 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, reset_mask = 0;
- unsigned char tx_status = 0;
- if (vortex_debug > 2) {
- printk(KERN_ERR "%s: vortex_error(), status=0x%xn", dev->name, status);
- }
- if (status & TxComplete) { /* Really "TxError" for us. */
- 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_ERR "%s: Transmit error, Tx status register %2.2x.n",
- dev->name, tx_status);
- if (tx_status == 0x82) {
- printk(KERN_ERR "Probably a duplex mismatch. See "
- "Documentation/networking/vortex.txtn");
- }
- dump_tx_ring(dev);
- }
- 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) { /* txJabber or txUnderrun */
- do_tx_reset = 1;
- } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
- do_tx_reset = 1;
- reset_mask = 0x0108; /* Reset interface logic, but not download logic */
- } 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;
- 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);
- vp->intr_enable &= ~StatsFull;
- 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) {
- int bus_status = inl(ioaddr + PktStatus);
- /* 0x80000000 PCI master abort. */
- /* 0x40000000 PCI target abort. */
- if (vortex_debug)
- printk(KERN_ERR "%s: PCI bus error, bus status %8.8xn", dev->name, bus_status);
- /* In this case, blow the card away */
- vortex_down(dev);
- issue_and_wait(dev, TotalReset | 0xff);
- vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
- } else if (fifo_diag & 0x0400)
- do_tx_reset = 1;
- if (fifo_diag & 0x3000) {
- /* Reset Rx fifo and upload logic */
- issue_and_wait(dev, RxReset|0x07);
- /* 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) {
- issue_and_wait(dev, TxReset|reset_mask);
- outw(TxEnable, ioaddr + EL3_CMD);
- if (!vp->full_bus_master_tx)
- netif_wake_queue(dev);
- }
- }
- 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;
- /* Put out the doubleword header... */
- outl(skb->len, ioaddr + TX_FIFO);
- if (vp->bus_master) {
- /* Set the bus-master controller to transfer the packet. */
- int len = (skb->len + 3) & ~3;
- outl( vp->tx_skb_dma = pci_map_single(vp->pdev, skb->data, len, PCI_DMA_TODEVICE),
- ioaddr + Wn7_MasterAddr);
- outw(len, ioaddr + Wn7_MasterLen);
- vp->tx_skb = skb;
- outw(StartDMADown, ioaddr + EL3_CMD);
- /* netif_wake_queue() will be called 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); /* AKPM: redundant? */
- } else {
- /* Interrupt us when the FIFO has room for max-sized packet. */
- netif_stop_queue(dev);
- 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) {
- issue_and_wait(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;
- /* 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 > 6) {
- printk(KERN_DEBUG "boomerang_start_xmit()n");
- if (vortex_debug > 3)
- printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.n",
- dev->name, vp->cur_tx);
- }
- if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
- if (vortex_debug > 0)
- printk(KERN_WARNING "%s: BUG! Tx Ring full, refusing to send buffer.n",
- dev->name);
- netif_stop_queue(dev);
- return 1;
- }
- vp->tx_skbuff[entry] = skb;
- vp->tx_ring[entry].next = 0;
- #if DO_ZEROCOPY
- if (skb->ip_summed != CHECKSUM_HW)
- vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
- else
- vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum);
- if (!skb_shinfo(skb)->nr_frags) {
- vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(vp->pdev, skb->data,
- skb->len, PCI_DMA_TODEVICE));
- vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
- } else {
- int i;
- vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(vp->pdev, skb->data,
- skb->len-skb->data_len, PCI_DMA_TODEVICE));
- vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len);
- for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
- vp->tx_ring[entry].frag[i+1].addr =
- cpu_to_le32(pci_map_single(vp->pdev,
- (void*)page_address(frag->page) + frag->page_offset,
- frag->size, PCI_DMA_TODEVICE));
- if (i == skb_shinfo(skb)->nr_frags-1)
- vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
- else
- vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
- }
- }
- #else
- vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(vp->pdev, skb->data, skb->len, PCI_DMA_TODEVICE));
- vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
- vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
- #endif
- spin_lock_irqsave(&vp->lock, flags);
- /* Wait for the stall to complete. */
- issue_and_wait(dev, DownStall);
- prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
- if (inl(ioaddr + DownListPtr) == 0) {
- outl(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
- vp->queued_packet++;
- }
- vp->cur_tx++;
- if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
- netif_stop_queue (dev);
- } else { /* Clear previous interrupt enable. */
- #if defined(tx_interrupt_mitigation)
- /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
- * were selected, this would corrupt DN_COMPLETE. No?
- */
- prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
- #endif
- }
- outw(DownUnstall, ioaddr + EL3_CMD);
- spin_unlock_irqrestore(&vp->lock, flags);
- dev->trans_start = jiffies;
- return 0;
- }
- /* The interrupt handler does all of the Rx thread work and cleans up
- after the Tx thread. */
- /*
- * This is the ISR for the vortex series chips.
- * full_bus_master_tx == 0 && full_bus_master_rx == 0
- */
- 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 status;
- int work_done = max_interrupt_work;
-
- ioaddr = dev->base_addr;
- spin_lock(&vp->lock);
- status = inw(ioaddr + EL3_STATUS);
- if (vortex_debug > 6)
- printk("vortex_interrupt(). status=0x%4xn", status);
- if ((status & IntLatch) == 0)
- goto handler_exit; /* No interrupt: shared IRQs cause this */
- if (status & IntReq) {
- status |= vp->deferred;
- vp->deferred = 0;
- }
- if (status == 0xffff) /* h/w no longer present (hotplug)? */
- goto handler_exit;
- if (vortex_debug > 4)
- printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.n",
- dev->name, status, inb(ioaddr + Timer));
- 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 & 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 & DMADone) {
- if (inw(ioaddr + Wn7_MasterStatus) & 0x1000) {
- outw(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
- pci_unmap_single(vp->pdev, vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
- dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
- if (inw(ioaddr + TxFree) > 1536) {
- /*
- * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
- * insufficient FIFO room, the TxAvailable test will succeed and call
- * netif_wake_queue()
- */
- 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. */
- mod_timer(&vp->timer, jiffies + 1*HZ);
- break;
- }
- /* Acknowledge the IRQ. */
- outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
- } 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);
- }
- /*
- * This is the ISR for the boomerang series chips.
- * full_bus_master_tx == 1 && full_bus_master_rx == 1
- */
- static void boomerang_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 status;
- int work_done = max_interrupt_work;
- ioaddr = dev->base_addr;
- /*
- * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
- * and boomerang_start_xmit
- */
- spin_lock(&vp->lock);
- status = inw(ioaddr + EL3_STATUS);
- if (vortex_debug > 6)
- printk(KERN_DEBUG "boomerang_interrupt. status=0x%4xn", status);
- if ((status & IntLatch) == 0)
- goto handler_exit; /* No interrupt: shared IRQs can cause this */
- if (status == 0xffff) { /* h/w no longer present (hotplug)? */
- if (vortex_debug > 1)
- printk(KERN_DEBUG "boomerang_interrupt(1): status = 0xffffn");
- goto handler_exit;
- }
- if (status & IntReq) {
- status |= vp->deferred;
- vp->deferred = 0;
- }
- if (vortex_debug > 4)
- printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.n",
- dev->name, status, inb(ioaddr + Timer));
- do {
- if (vortex_debug > 5)
- printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.n",
- dev->name, status);
- if (status & UpComplete) {
- outw(AckIntr | UpComplete, ioaddr + EL3_CMD);
- if (vortex_debug > 5)
- printk(KERN_DEBUG "boomerang_interrupt->boomerang_rxn");
- boomerang_rx(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 1 /* AKPM: the latter is faster, but cyclone-only */
- if (inl(ioaddr + DownListPtr) ==
- vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
- break; /* It still hasn't been processed. */
- #else
- if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
- break; /* It still hasn't been processed. */
- #endif
-
- if (vp->tx_skbuff[entry]) {
- struct sk_buff *skb = vp->tx_skbuff[entry];
- #if DO_ZEROCOPY
- int i;
- for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
- pci_unmap_single(vp->pdev,
- le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
- le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
- PCI_DMA_TODEVICE);
- #else
- pci_unmap_single(vp->pdev,
- le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
- #endif
- dev_kfree_skb_irq(skb);
- vp->tx_skbuff[entry] = 0;
- } else {
- printk(KERN_DEBUG "boomerang_interrupt: no skb!n");
- }
- /* vp->stats.tx_packets++; Counted below. */
- dirty_tx++;
- }
- vp->dirty_tx = dirty_tx;
- if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
- if (vortex_debug > 6)
- printk(KERN_DEBUG "boomerang_interrupt: wake queuen");
- netif_wake_queue (dev);
- }
- }
- /* Check for all uncommon interrupts at once. */
- if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
- 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. */
- mod_timer(&vp->timer, jiffies + 1*HZ);
- 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);
- 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 "vortex_rx(): 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)) {
- dma_addr_t dma = pci_map_single(vp->pdev, skb_put(skb, pkt_len),
- pkt_len, PCI_DMA_FROMDEVICE);
- outl(dma, ioaddr + Wn7_MasterAddr);
- outw((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
- outw(StartDMAUp, ioaddr + EL3_CMD);
- while (inw(ioaddr + Wn7_MasterStatus) & 0x8000)
- ;
- pci_unmap_single(vp->pdev, dma, pkt_len, PCI_DMA_FROMDEVICE);
- } 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 > 0)
- printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of "
- "size %d.n", dev->name, pkt_len);
- }
- vp->stats.rx_dropped++;
- issue_and_wait(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 "boomerang_rx(): status %4.4xn", inw(ioaddr+EL3_STATUS));
- 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;
- dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
- 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 */
- pci_dma_sync_single(vp->pdev, dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
- /* 'skb_put()' points to the start of sk_buff data area. */
- memcpy(skb_put(skb, pkt_len),
- vp->rx_skbuff[entry]->tail,
- pkt_len);
- vp->rx_copy++;
- } else {
- /* Pass up the skbuff already on the Rx ring. */
- skb = vp->rx_skbuff[entry];
- vp->rx_skbuff[entry] = NULL;
- skb_put(skb, pkt_len);
- pci_unmap_single(vp->pdev, dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
- vp->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;
- vp->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->cur_rx - vp->dirty_rx > 0; 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) {
- static unsigned long last_jif;
- if ((jiffies - last_jif) > 10 * HZ) {
- printk(KERN_WARNING "%s: memory shortagen", dev->name);
- last_jif = jiffies;
- }
- if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
- mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
- 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(pci_map_single(vp->pdev, skb->tail, PKT_BUF_SZ, PCI_DMA_FROMDEVICE));
- vp->rx_skbuff[entry] = skb;
- }
- vp->rx_ring[entry].status = 0; /* Clear complete bit. */
- outw(UpUnstall, ioaddr + EL3_CMD);
- }
- return 0;
- }
- /*
- * If we've hit a total OOM refilling the Rx ring we poll once a second
- * for some memory. Otherwise there is no way to restart the rx process.
- */
- static void
- rx_oom_timer(unsigned long arg)
- {
- struct net_device *dev = (struct net_device *)arg;
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- spin_lock_irq(&vp->lock);
- if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
- boomerang_rx(dev);
- if (vortex_debug > 1) {
- printk(KERN_DEBUG "%s: rx_oom_timer %sn", dev->name,
- ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
- }
- spin_unlock_irq(&vp->lock);
- }
- 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_sync(&vp->rx_oom_timer);
- del_timer_sync(&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->pdev && vp->enable_wol) {
- pci_save_state(vp->pdev, vp->power_state);
- 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, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
- }
- #if DO_ZEROCOPY
- if ( vp->rx_csumhits &&
- ((vp->drv_flags & HAS_HWCKSM) == 0) &&
- (hw_checksums[vp->card_idx] == -1)) {
- printk(KERN_WARNING "%s supports hardware checksums, and we're not using them!n", dev->name);
- printk(KERN_WARNING "Please see http://www.uow.edu.au/~andrewm/zerocopy.htmln");
- }
- #endif
-
- 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]) {
- pci_unmap_single( vp->pdev, le32_to_cpu(vp->rx_ring[i].addr),
- PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
- 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]) {
- struct sk_buff *skb = vp->tx_skbuff[i];
- #if DO_ZEROCOPY
- int k;
- for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
- pci_unmap_single(vp->pdev,
- le32_to_cpu(vp->tx_ring[i].frag[k].addr),
- le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
- PCI_DMA_TODEVICE);
- #else
- pci_unmap_single(vp->pdev, le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
- #endif
- dev_kfree_skb(skb);
- vp->tx_skbuff[i] = 0;
- }
- }
- }
- return 0;
- }
- static void
- dump_tx_ring(struct net_device *dev)
- {
- if (vortex_debug > 0) {
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
-
- if (vp->full_bus_master_tx) {
- int i;
- int stalled = inl(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
- printk(KERN_ERR " Flags; bus-master %d, dirty %d(%d) current %d(%d)n",
- vp->full_bus_master_tx,
- vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
- vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
- printk(KERN_ERR " Transmit list %8.8x vs. %p.n",
- inl(ioaddr + DownListPtr),
- &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
- issue_and_wait(dev, DownStall);
- for (i = 0; i < TX_RING_SIZE; i++) {
- printk(KERN_ERR " %d: @%p length %8.8x status %8.8xn", i,
- &vp->tx_ring[i],
- #if DO_ZEROCOPY
- le32_to_cpu(vp->tx_ring[i].frag[0].length),
- #else
- le32_to_cpu(vp->tx_ring[i].length),
- #endif
- le32_to_cpu(vp->tx_ring[i].status));
- }
- if (!stalled)
- outw(DownUnstall, ioaddr + EL3_CMD);
- }
- }
- }
- 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)) { /* AKPM: Used to be netif_running */
- 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;
- }
- EL3WINDOW(old_window >> 13);
- return;
- }
- static int netdev_ethtool_ioctl(struct net_device *dev, void *useraddr)
- {
- struct vortex_private *vp = dev->priv;
- u32 ethcmd;
-
- if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd)))
- return -EFAULT;
- switch (ethcmd) {
- case ETHTOOL_GDRVINFO: {
- struct ethtool_drvinfo info = {ETHTOOL_GDRVINFO};
- strcpy(info.driver, DRV_NAME);
- strcpy(info.version, DRV_VERSION);
- if (vp->pdev)
- strcpy(info.bus_info, vp->pdev->slot_name);
- else
- sprintf(info.bus_info, "EISA 0x%lx %d",
- dev->base_addr, dev->irq);
- if (copy_to_user(useraddr, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- }
-
- return -EOPNOTSUPP;
- }
- 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;
- struct mii_ioctl_data *data = (struct mii_ioctl_data *)&rq->ifr_data;
- int phy = vp->phys[0] & 0x1f;
- int retval;
- switch(cmd) {
- case SIOCETHTOOL:
- return netdev_ethtool_ioctl(dev, (void *) rq->ifr_data);
- case SIOCGMIIPHY: /* Get address of MII PHY in use. */
- case SIOCDEVPRIVATE: /* for binary compat, remove in 2.5 */
- data->phy_id = phy;
- case SIOCGMIIREG: /* Read MII PHY register. */
- case SIOCDEVPRIVATE+1: /* for binary compat, remove in 2.5 */
- EL3WINDOW(4);
- data->val_out = mdio_read(dev, data->phy_id & 0x1f, data->reg_num & 0x1f);
- retval = 0;
- break;
- case SIOCSMIIREG: /* Write MII PHY register. */
- case SIOCDEVPRIVATE+2: /* for binary compat, remove in 2.5 */
- if (!capable(CAP_NET_ADMIN)) {
- retval = -EPERM;
- } else {
- EL3WINDOW(4);
- mdio_write(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
- retval = 0;
- }
- break;
- default:
- retval = -EOPNOTSUPP;
- break;
- }
- return retval;
- }
- /* 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(struct net_device *dev, int phy_id, int location)
- {
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- int i;
- long ioaddr = dev->base_addr;
- int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
- unsigned int retval = 0;
- long mdio_addr = ioaddr + Wn4_PhysicalMgmt;
- spin_lock_bh(&vp->mdio_lock);
- 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();
- }
- spin_unlock_bh(&vp->mdio_lock);
- return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
- }
- static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
- {
- struct vortex_private *vp = (struct vortex_private *)dev->priv;
- long ioaddr = dev->base_addr;
- int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
- long mdio_addr = ioaddr + Wn4_PhysicalMgmt;
- int i;
- spin_lock_bh(&vp->mdio_lock);
- 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();
- }
- spin_unlock_bh(&vp->mdio_lock);
- 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_enable_wake(vp->pdev, 0, 1);
- pci_set_power_state(vp->pdev, 3);
- }
- static void __devexit vortex_remove_one (struct pci_dev *pdev)
- {
- struct net_device *dev = pci_get_drvdata(pdev);
- struct vortex_private *vp;
- if (!dev) {
- printk("vortex_remove_one called for EISA device!n");
- BUG();
- }
- vp = dev->priv;
- /* AKPM: FIXME: we should have
- * if (vp->cb_fn_base) iounmap(vp->cb_fn_base);
- * here
- */
- unregister_netdev(dev);
- /* Should really use issue_and_wait() here */
- outw(TotalReset|0x14, dev->base_addr + EL3_CMD);
- if (vp->pdev && vp->enable_wol) {
- pci_set_power_state(vp->pdev, 0); /* Go active */
- if (vp->pm_state_valid)
- pci_restore_state(vp->pdev, vp->power_state);
- }
- pci_free_consistent(pdev,
- sizeof(struct boom_rx_desc) * RX_RING_SIZE
- + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
- vp->rx_ring,
- vp->rx_ring_dma);
- if (vp->must_free_region)
- release_region(dev->base_addr, vp->io_size);
- kfree(dev);
- }
- static struct pci_driver vortex_driver = {
- name: "3c59x",
- probe: vortex_init_one,
- remove: __devexit_p(vortex_remove_one),
- id_table: vortex_pci_tbl,
- #ifdef CONFIG_PM
- suspend: vortex_suspend,
- resume: vortex_resume,
- #endif
- };
- static int vortex_have_pci;
- static int vortex_have_eisa;
- static int __init vortex_init (void)
- {
- int pci_rc, eisa_rc;
- pci_rc = pci_module_init(&vortex_driver);
- eisa_rc = vortex_eisa_init();
- if (pci_rc == 0)
- vortex_have_pci = 1;
- if (eisa_rc > 0)
- vortex_have_eisa = 1;
- return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
- }
- 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:
- * c-indent-level: 4
- * c-basic-offset: 4
- * tab-width: 4
- * End:
- */