/* EtherLinkXL.c: A 3Com EtherLink PCI III/XL ethernet driver for linux. */
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/*
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Written 1996-1999 by Donald Becker.
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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This driver is for the 3Com "Vortex" and "Boomerang" series ethercards.
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Members of the series include Fast EtherLink 3c590/3c592/3c595/3c597
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and the EtherLink XL 3c900 and 3c905 cards.
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Problem reports and questions should be directed to
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vortex@scyld.com
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The author may be reached as becker@scyld.com, or C/O
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Scyld Computing Corporation
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410 Severn Ave., Suite 210
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Annapolis MD 21403
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*/
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/*
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* FIXME: This driver _could_ support MTU changing, but doesn't. See Don's hamachi.c implementation
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* as well as other drivers
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*
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* NOTE: If you make 'vortex_debug' a constant (#define vortex_debug 0) the driver shrinks by 2k
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* due to dead code elimination. There will be some performance benefits from this due to
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* elimination of all the tests and reduced cache footprint.
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*/
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#define DRV_NAME "3c59x"
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/* A few values that may be tweaked. */
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/* Keep the ring sizes a power of two for efficiency. */
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#define TX_RING_SIZE 16
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#define RX_RING_SIZE 32
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#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
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/* "Knobs" that adjust features and parameters. */
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/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
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Setting to > 1512 effectively disables this feature. */
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#ifndef __arm__
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static int rx_copybreak = 200;
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#else
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/* ARM systems perform better by disregarding the bus-master
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transfer capability of these cards. -- rmk */
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static int rx_copybreak = 1513;
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#endif
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/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
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static const int mtu = 1500;
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/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
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static int max_interrupt_work = 32;
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/* Tx timeout interval (millisecs) */
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static int watchdog = 5000;
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/* Allow aggregation of Tx interrupts. Saves CPU load at the cost
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* of possible Tx stalls if the system is blocking interrupts
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* somewhere else. Undefine this to disable.
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*/
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#define tx_interrupt_mitigation 1
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/* Put out somewhat more debugging messages. (0: no msg, 1 minimal .. 6). */
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#define vortex_debug debug
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#ifdef VORTEX_DEBUG
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static int vortex_debug = VORTEX_DEBUG;
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#else
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static int vortex_debug = 1;
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#endif
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/errno.h>
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#include <linux/in.h>
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#include <linux/ioport.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/mii.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/ethtool.h>
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#include <linux/highmem.h>
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#include <linux/eisa.h>
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#include <linux/bitops.h>
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#include <linux/jiffies.h>
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#include <linux/gfp.h>
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#include <asm/irq.h> /* For nr_irqs only. */
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#include <asm/io.h>
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#include <linux/uaccess.h>
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/* Kernel compatibility defines, some common to David Hinds' PCMCIA package.
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This is only in the support-all-kernels source code. */
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#define RUN_AT(x) (jiffies + (x))
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#include <linux/delay.h>
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static const char version[] =
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DRV_NAME ": Donald Becker and others.\n";
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MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
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MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver ");
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MODULE_LICENSE("GPL");
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/* Operational parameter that usually are not changed. */
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/* The Vortex size is twice that of the original EtherLinkIII series: the
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runtime register window, window 1, is now always mapped in.
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The Boomerang size is twice as large as the Vortex -- it has additional
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bus master control registers. */
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#define VORTEX_TOTAL_SIZE 0x20
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#define BOOMERANG_TOTAL_SIZE 0x40
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/* Set iff a MII transceiver on any interface requires mdio preamble.
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This only set with the original DP83840 on older 3c905 boards, so the extra
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code size of a per-interface flag is not worthwhile. */
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static char mii_preamble_required;
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#define PFX DRV_NAME ": "
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/*
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Theory of Operation
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I. Board Compatibility
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This device driver is designed for the 3Com FastEtherLink and FastEtherLink
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XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs
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versions of the FastEtherLink cards. The supported product IDs are
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3c590, 3c592, 3c595, 3c597, 3c900, 3c905
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The related ISA 3c515 is supported with a separate driver, 3c515.c, included
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with the kernel source or available from
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cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html
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II. Board-specific settings
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PCI bus devices are configured by the system at boot time, so no jumpers
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need to be set on the board. The system BIOS should be set to assign the
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PCI INTA signal to an otherwise unused system IRQ line.
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The EEPROM settings for media type and forced-full-duplex are observed.
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The EEPROM media type should be left at the default "autoselect" unless using
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10base2 or AUI connections which cannot be reliably detected.
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III. Driver operation
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The 3c59x series use an interface that's very similar to the previous 3c5x9
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series. The primary interface is two programmed-I/O FIFOs, with an
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alternate single-contiguous-region bus-master transfer (see next).
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The 3c900 "Boomerang" series uses a full-bus-master interface with separate
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lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet,
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DEC Tulip and Intel Speedo3. The first chip version retains a compatible
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programmed-I/O interface that has been removed in 'B' and subsequent board
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revisions.
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One extension that is advertised in a very large font is that the adapters
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are capable of being bus masters. On the Vortex chip this capability was
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only for a single contiguous region making it far less useful than the full
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bus master capability. There is a significant performance impact of taking
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an extra interrupt or polling for the completion of each transfer, as well
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as difficulty sharing the single transfer engine between the transmit and
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receive threads. Using DMA transfers is a win only with large blocks or
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with the flawed versions of the Intel Orion motherboard PCI controller.
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The Boomerang chip's full-bus-master interface is useful, and has the
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currently-unused advantages over other similar chips that queued transmit
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packets may be reordered and receive buffer groups are associated with a
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single frame.
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With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme.
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Rather than a fixed intermediate receive buffer, this scheme allocates
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full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as
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the copying breakpoint: it is chosen to trade-off the memory wasted by
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passing the full-sized skbuff to the queue layer for all frames vs. the
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copying cost of copying a frame to a correctly-sized skbuff.
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IIIC. Synchronization
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The driver runs as two independent, single-threaded flows of control. One
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is the send-packet routine, which enforces single-threaded use by the
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dev->tbusy flag. The other thread is the interrupt handler, which is single
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threaded by the hardware and other software.
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IV. Notes
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Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development
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3c590, 3c595, and 3c900 boards.
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The name "Vortex" is the internal 3Com project name for the PCI ASIC, and
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the EISA version is called "Demon". According to Terry these names come
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from rides at the local amusement park.
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The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes!
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This driver only supports ethernet packets because of the skbuff allocation
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limit of 4K.
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*/
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/* This table drives the PCI probe routines. It's mostly boilerplate in all
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of the drivers, and will likely be provided by some future kernel.
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*/
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enum pci_flags_bit {
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PCI_USES_MASTER=4,
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};
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enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8,
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EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */
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HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100,
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INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800,
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EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000,
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EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, };
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enum vortex_chips {
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CH_3C590 = 0,
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CH_3C592,
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CH_3C597,
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CH_3C595_1,
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CH_3C595_2,
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CH_3C595_3,
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CH_3C900_1,
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CH_3C900_2,
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CH_3C900_3,
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CH_3C900_4,
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CH_3C900_5,
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CH_3C900B_FL,
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CH_3C905_1,
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CH_3C905_2,
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CH_3C905B_TX,
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CH_3C905B_1,
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CH_3C905B_2,
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CH_3C905B_FX,
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CH_3C905C,
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CH_3C9202,
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CH_3C980,
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CH_3C9805,
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CH_3CSOHO100_TX,
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CH_3C555,
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CH_3C556,
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CH_3C556B,
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CH_3C575,
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CH_3C575_1,
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CH_3CCFE575,
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CH_3CCFE575CT,
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CH_3CCFE656,
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CH_3CCFEM656,
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CH_3CCFEM656_1,
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CH_3C450,
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CH_3C920,
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CH_3C982A,
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CH_3C982B,
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CH_905BT4,
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CH_920B_EMB_WNM,
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};
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/* note: this array directly indexed by above enums, and MUST
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* be kept in sync with both the enums above, and the PCI device
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* table below
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*/
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static struct vortex_chip_info {
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const char *name;
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int flags;
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int drv_flags;
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int io_size;
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} vortex_info_tbl[] = {
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{"3c590 Vortex 10Mbps",
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PCI_USES_MASTER, IS_VORTEX, 32, },
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{"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
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PCI_USES_MASTER, IS_VORTEX, 32, },
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{"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
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PCI_USES_MASTER, IS_VORTEX, 32, },
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{"3c595 Vortex 100baseTx",
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PCI_USES_MASTER, IS_VORTEX, 32, },
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{"3c595 Vortex 100baseT4",
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PCI_USES_MASTER, IS_VORTEX, 32, },
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{"3c595 Vortex 100base-MII",
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PCI_USES_MASTER, IS_VORTEX, 32, },
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{"3c900 Boomerang 10baseT",
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PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
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{"3c900 Boomerang 10Mbps Combo",
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PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
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{"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */
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PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
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{"3c900 Cyclone 10Mbps Combo",
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PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
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{"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */
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PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
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{"3c900B-FL Cyclone 10base-FL",
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PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
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{"3c905 Boomerang 100baseTx",
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PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
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{"3c905 Boomerang 100baseT4",
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PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
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{"3C905B-TX Fast Etherlink XL PCI",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
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{"3c905B Cyclone 100baseTx",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
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{"3c905B Cyclone 10/100/BNC",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
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{"3c905B-FX Cyclone 100baseFx",
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PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
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{"3c905C Tornado",
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PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
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{"3c920B-EMB-WNM (ATI Radeon 9100 IGP)",
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PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, },
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{"3c980 Cyclone",
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PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
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{"3c980C Python-T",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
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{"3cSOHO100-TX Hurricane",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
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{"3c555 Laptop Hurricane",
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PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, },
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{"3c556 Laptop Tornado",
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PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR|
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HAS_HWCKSM, 128, },
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{"3c556B Laptop Hurricane",
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PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR|
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WNO_XCVR_PWR|HAS_HWCKSM, 128, },
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{"3c575 [Megahertz] 10/100 LAN CardBus",
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PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
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{"3c575 Boomerang CardBus",
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PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
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{"3CCFE575BT Cyclone CardBus",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|
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INVERT_LED_PWR|HAS_HWCKSM, 128, },
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{"3CCFE575CT Tornado CardBus",
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PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
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MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
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{"3CCFE656 Cyclone CardBus",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
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INVERT_LED_PWR|HAS_HWCKSM, 128, },
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{"3CCFEM656B Cyclone+Winmodem CardBus",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
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INVERT_LED_PWR|HAS_HWCKSM, 128, },
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{"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */
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PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
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MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
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{"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */
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PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
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{"3c920 Tornado",
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PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
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{"3c982 Hydra Dual Port A",
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PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
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{"3c982 Hydra Dual Port B",
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PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
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{"3c905B-T4",
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PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
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{"3c920B-EMB-WNM Tornado",
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PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
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{NULL,}, /* NULL terminated list. */
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};
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static const struct pci_device_id vortex_pci_tbl[] = {
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{ 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
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{ 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 },
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{ 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 },
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{ 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 },
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{ 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 },
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{ 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 },
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{ 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 },
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{ 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 },
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{ 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
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{ 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 },
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{ 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 },
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{ 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL },
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{ 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 },
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{ 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 },
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{ 0x10B7, 0x9054, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_TX },
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{ 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 },
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{ 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 },
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{ 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX },
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{ 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C },
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{ 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 },
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{ 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 },
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{ 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 },
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{ 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX },
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{ 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 },
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{ 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 },
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{ 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B },
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{ 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 },
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{ 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 },
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{ 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 },
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{ 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT },
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{ 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 },
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{ 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 },
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{ 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 },
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{ 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 },
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{ 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 },
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{ 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A },
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{ 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B },
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{ 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 },
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{ 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM },
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{0,} /* 0 terminated list. */
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};
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MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
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|
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/* 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 EL3_CMD 0x0e
|
#define EL3_STATUS 0x0e
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|
/* 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_MaxPktSize=4, 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_VlanEtherType=4, 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 {
|
__le32 next; /* Last entry points to 0. */
|
__le32 status;
|
__le32 addr; /* Up to 63 addr/len pairs possible. */
|
__le32 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 {
|
__le32 next; /* Last entry points to 0. */
|
__le32 status; /* bits 0:12 length, others see below. */
|
#if DO_ZEROCOPY
|
struct {
|
__le32 addr;
|
__le32 length;
|
} frag[1+MAX_SKB_FRAGS];
|
#else
|
__le32 addr;
|
__le32 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_extra_stats {
|
unsigned long tx_deferred;
|
unsigned long tx_max_collisions;
|
unsigned long tx_multiple_collisions;
|
unsigned long tx_single_collisions;
|
unsigned long rx_bad_ssd;
|
};
|
|
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];
|
unsigned int cur_rx, cur_tx; /* The next free ring entry */
|
unsigned int dirty_tx; /* The ring entries to be free()ed. */
|
struct vortex_extra_stats xstats; /* NIC-specific extra 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 device *gendev;
|
void __iomem *ioaddr; /* IO address space */
|
void __iomem *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. */
|
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, 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, /* pci_dev->saved_config_space has sane contents */
|
open:1,
|
medialock:1,
|
large_frames:1, /* accept large frames */
|
handling_irq:1; /* private in_irq indicator */
|
/* {get|set}_wol operations are already serialized by rtnl.
|
* no additional locking is required for the enable_wol and acpi_set_WOL()
|
*/
|
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) */
|
|
/* Serialises access to hardware other than MII and variables below.
|
* The lock hierarchy is rtnl_lock > {lock, mii_lock} > window_lock. */
|
spinlock_t lock;
|
|
spinlock_t mii_lock; /* Serialises access to MII */
|
struct mii_if_info mii; /* MII lib hooks/info */
|
spinlock_t window_lock; /* Serialises access to windowed regs */
|
int window; /* Register window */
|
};
|
|
static void window_set(struct vortex_private *vp, int window)
|
{
|
if (window != vp->window) {
|
iowrite16(SelectWindow + window, vp->ioaddr + EL3_CMD);
|
vp->window = window;
|
}
|
}
|
|
#define DEFINE_WINDOW_IO(size) \
|
static u ## size \
|
window_read ## size(struct vortex_private *vp, int window, int addr) \
|
{ \
|
unsigned long flags; \
|
u ## size ret; \
|
spin_lock_irqsave(&vp->window_lock, flags); \
|
window_set(vp, window); \
|
ret = ioread ## size(vp->ioaddr + addr); \
|
spin_unlock_irqrestore(&vp->window_lock, flags); \
|
return ret; \
|
} \
|
static void \
|
window_write ## size(struct vortex_private *vp, u ## size value, \
|
int window, int addr) \
|
{ \
|
unsigned long flags; \
|
spin_lock_irqsave(&vp->window_lock, flags); \
|
window_set(vp, window); \
|
iowrite ## size(value, vp->ioaddr + addr); \
|
spin_unlock_irqrestore(&vp->window_lock, flags); \
|
}
|
DEFINE_WINDOW_IO(8)
|
DEFINE_WINDOW_IO(16)
|
DEFINE_WINDOW_IO(32)
|
|
#ifdef CONFIG_PCI
|
#define DEVICE_PCI(dev) ((dev_is_pci(dev)) ? to_pci_dev((dev)) : NULL)
|
#else
|
#define DEVICE_PCI(dev) NULL
|
#endif
|
|
#define VORTEX_PCI(vp) \
|
((struct pci_dev *) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL))
|
|
#ifdef CONFIG_EISA
|
#define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL)
|
#else
|
#define DEVICE_EISA(dev) NULL
|
#endif
|
|
#define VORTEX_EISA(vp) \
|
((struct eisa_device *) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL))
|
|
/* 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 const 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 struct {
|
const char str[ETH_GSTRING_LEN];
|
} ethtool_stats_keys[] = {
|
{ "tx_deferred" },
|
{ "tx_max_collisions" },
|
{ "tx_multiple_collisions" },
|
{ "tx_single_collisions" },
|
{ "rx_bad_ssd" },
|
};
|
|
/* number of ETHTOOL_GSTATS u64's */
|
#define VORTEX_NUM_STATS 5
|
|
static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
|
int chip_idx, int card_idx);
|
static int vortex_up(struct net_device *dev);
|
static void vortex_down(struct net_device *dev, int final);
|
static int vortex_open(struct net_device *dev);
|
static void mdio_sync(struct vortex_private *vp, 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(struct timer_list *t);
|
static netdev_tx_t vortex_start_xmit(struct sk_buff *skb,
|
struct net_device *dev);
|
static netdev_tx_t 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 irqreturn_t vortex_boomerang_interrupt(int irq, void *dev_id);
|
static irqreturn_t _vortex_interrupt(int irq, struct net_device *dev);
|
static irqreturn_t _boomerang_interrupt(int irq, struct net_device *dev);
|
static int vortex_close(struct net_device *dev);
|
static void dump_tx_ring(struct net_device *dev);
|
static void update_stats(void __iomem *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);
|
#ifdef CONFIG_PCI
|
static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
|
#endif
|
static void vortex_tx_timeout(struct net_device *dev, unsigned int txqueue);
|
static void acpi_set_WOL(struct net_device *dev);
|
static const struct ethtool_ops vortex_ethtool_ops;
|
static void set_8021q_mode(struct net_device *dev, int enable);
|
|
/* 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] = { [0 ... MAX_UNITS-1] = -1 };
|
static int full_duplex[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
|
static int hw_checksums[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
|
static int flow_ctrl[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
|
static int enable_wol[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
|
static int use_mmio[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
|
static int global_options = -1;
|
static int global_full_duplex = -1;
|
static int global_enable_wol = -1;
|
static int global_use_mmio = -1;
|
|
/* Variables to work-around the Compaq PCI BIOS32 problem. */
|
static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900;
|
static struct net_device *compaq_net_device;
|
|
static int vortex_cards_found;
|
|
module_param(debug, int, 0);
|
module_param(global_options, int, 0);
|
module_param_array(options, int, NULL, 0);
|
module_param(global_full_duplex, int, 0);
|
module_param_array(full_duplex, int, NULL, 0);
|
module_param_array(hw_checksums, int, NULL, 0);
|
module_param_array(flow_ctrl, int, NULL, 0);
|
module_param(global_enable_wol, int, 0);
|
module_param_array(enable_wol, int, NULL, 0);
|
module_param(rx_copybreak, int, 0);
|
module_param(max_interrupt_work, int, 0);
|
module_param_hw(compaq_ioaddr, int, ioport, 0);
|
module_param_hw(compaq_irq, int, irq, 0);
|
module_param(compaq_device_id, int, 0);
|
module_param(watchdog, int, 0);
|
module_param(global_use_mmio, int, 0);
|
module_param_array(use_mmio, int, NULL, 0);
|
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(global_options, "3c59x: same as options, but applies to all NICs if options is unset");
|
MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)");
|
MODULE_PARM_DESC(global_full_duplex, "3c59x: same as full_duplex, but applies to all NICs if full_duplex is unset");
|
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(global_enable_wol, "3c59x: same as enable_wol, but applies to all NICs if enable_wol is unset");
|
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");
|
MODULE_PARM_DESC(global_use_mmio, "3c59x: same as use_mmio, but applies to all NICs if options is unset");
|
MODULE_PARM_DESC(use_mmio, "3c59x: use memory-mapped PCI I/O resource (0-1)");
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
static void poll_vortex(struct net_device *dev)
|
{
|
vortex_boomerang_interrupt(dev->irq, dev);
|
}
|
#endif
|
|
#ifdef CONFIG_PM
|
|
static int vortex_suspend(struct device *dev)
|
{
|
struct net_device *ndev = dev_get_drvdata(dev);
|
|
if (!ndev || !netif_running(ndev))
|
return 0;
|
|
netif_device_detach(ndev);
|
vortex_down(ndev, 1);
|
|
return 0;
|
}
|
|
static int vortex_resume(struct device *dev)
|
{
|
struct net_device *ndev = dev_get_drvdata(dev);
|
int err;
|
|
if (!ndev || !netif_running(ndev))
|
return 0;
|
|
err = vortex_up(ndev);
|
if (err)
|
return err;
|
|
netif_device_attach(ndev);
|
|
return 0;
|
}
|
|
static const struct dev_pm_ops vortex_pm_ops = {
|
.suspend = vortex_suspend,
|
.resume = vortex_resume,
|
.freeze = vortex_suspend,
|
.thaw = vortex_resume,
|
.poweroff = vortex_suspend,
|
.restore = vortex_resume,
|
};
|
|
#define VORTEX_PM_OPS (&vortex_pm_ops)
|
|
#else /* !CONFIG_PM */
|
|
#define VORTEX_PM_OPS NULL
|
|
#endif /* !CONFIG_PM */
|
|
#ifdef CONFIG_EISA
|
static const struct eisa_device_id vortex_eisa_ids[] = {
|
{ "TCM5920", CH_3C592 },
|
{ "TCM5970", CH_3C597 },
|
{ "" }
|
};
|
MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids);
|
|
static int vortex_eisa_probe(struct device *device)
|
{
|
void __iomem *ioaddr;
|
struct eisa_device *edev;
|
|
edev = to_eisa_device(device);
|
|
if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME))
|
return -EBUSY;
|
|
ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE);
|
|
if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12,
|
edev->id.driver_data, vortex_cards_found)) {
|
release_region(edev->base_addr, VORTEX_TOTAL_SIZE);
|
return -ENODEV;
|
}
|
|
vortex_cards_found++;
|
|
return 0;
|
}
|
|
static int vortex_eisa_remove(struct device *device)
|
{
|
struct eisa_device *edev;
|
struct net_device *dev;
|
struct vortex_private *vp;
|
void __iomem *ioaddr;
|
|
edev = to_eisa_device(device);
|
dev = eisa_get_drvdata(edev);
|
|
if (!dev) {
|
pr_err("vortex_eisa_remove called for Compaq device!\n");
|
BUG();
|
}
|
|
vp = netdev_priv(dev);
|
ioaddr = vp->ioaddr;
|
|
unregister_netdev(dev);
|
iowrite16(TotalReset|0x14, ioaddr + EL3_CMD);
|
release_region(edev->base_addr, VORTEX_TOTAL_SIZE);
|
|
free_netdev(dev);
|
return 0;
|
}
|
|
static struct eisa_driver vortex_eisa_driver = {
|
.id_table = vortex_eisa_ids,
|
.driver = {
|
.name = "3c59x",
|
.probe = vortex_eisa_probe,
|
.remove = vortex_eisa_remove
|
}
|
};
|
|
#endif /* CONFIG_EISA */
|
|
/* returns count found (>= 0), or negative on error */
|
static int __init vortex_eisa_init(void)
|
{
|
int eisa_found = 0;
|
int orig_cards_found = vortex_cards_found;
|
|
#ifdef CONFIG_EISA
|
int err;
|
|
err = eisa_driver_register (&vortex_eisa_driver);
|
if (!err) {
|
/*
|
* Because of the way EISA bus is probed, we cannot assume
|
* any device have been found when we exit from
|
* eisa_driver_register (the bus root driver may not be
|
* initialized yet). So we blindly assume something was
|
* found, and let the sysfs magic happened...
|
*/
|
eisa_found = 1;
|
}
|
#endif
|
|
/* Special code to work-around the Compaq PCI BIOS32 problem. */
|
if (compaq_ioaddr) {
|
vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE),
|
compaq_irq, compaq_device_id, vortex_cards_found++);
|
}
|
|
return vortex_cards_found - orig_cards_found + eisa_found;
|
}
|
|
/* returns count (>= 0), or negative on error */
|
static int vortex_init_one(struct pci_dev *pdev,
|
const struct pci_device_id *ent)
|
{
|
int rc, unit, pci_bar;
|
struct vortex_chip_info *vci;
|
void __iomem *ioaddr;
|
|
/* wake up and enable device */
|
rc = pci_enable_device(pdev);
|
if (rc < 0)
|
goto out;
|
|
rc = pci_request_regions(pdev, DRV_NAME);
|
if (rc < 0)
|
goto out_disable;
|
|
unit = vortex_cards_found;
|
|
if (global_use_mmio < 0 && (unit >= MAX_UNITS || use_mmio[unit] < 0)) {
|
/* Determine the default if the user didn't override us */
|
vci = &vortex_info_tbl[ent->driver_data];
|
pci_bar = vci->drv_flags & (IS_CYCLONE | IS_TORNADO) ? 1 : 0;
|
} else if (unit < MAX_UNITS && use_mmio[unit] >= 0)
|
pci_bar = use_mmio[unit] ? 1 : 0;
|
else
|
pci_bar = global_use_mmio ? 1 : 0;
|
|
ioaddr = pci_iomap(pdev, pci_bar, 0);
|
if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */
|
ioaddr = pci_iomap(pdev, 0, 0);
|
if (!ioaddr) {
|
rc = -ENOMEM;
|
goto out_release;
|
}
|
|
rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq,
|
ent->driver_data, unit);
|
if (rc < 0)
|
goto out_iounmap;
|
|
vortex_cards_found++;
|
goto out;
|
|
out_iounmap:
|
pci_iounmap(pdev, ioaddr);
|
out_release:
|
pci_release_regions(pdev);
|
out_disable:
|
pci_disable_device(pdev);
|
out:
|
return rc;
|
}
|
|
static const struct net_device_ops boomrang_netdev_ops = {
|
.ndo_open = vortex_open,
|
.ndo_stop = vortex_close,
|
.ndo_start_xmit = boomerang_start_xmit,
|
.ndo_tx_timeout = vortex_tx_timeout,
|
.ndo_get_stats = vortex_get_stats,
|
#ifdef CONFIG_PCI
|
.ndo_do_ioctl = vortex_ioctl,
|
#endif
|
.ndo_set_rx_mode = set_rx_mode,
|
.ndo_set_mac_address = eth_mac_addr,
|
.ndo_validate_addr = eth_validate_addr,
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
.ndo_poll_controller = poll_vortex,
|
#endif
|
};
|
|
static const struct net_device_ops vortex_netdev_ops = {
|
.ndo_open = vortex_open,
|
.ndo_stop = vortex_close,
|
.ndo_start_xmit = vortex_start_xmit,
|
.ndo_tx_timeout = vortex_tx_timeout,
|
.ndo_get_stats = vortex_get_stats,
|
#ifdef CONFIG_PCI
|
.ndo_do_ioctl = vortex_ioctl,
|
#endif
|
.ndo_set_rx_mode = set_rx_mode,
|
.ndo_set_mac_address = eth_mac_addr,
|
.ndo_validate_addr = eth_validate_addr,
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
.ndo_poll_controller = poll_vortex,
|
#endif
|
};
|
|
/*
|
* Start up the PCI/EISA device which is described by *gendev.
|
* Return 0 on success.
|
*
|
* NOTE: pdev can be NULL, for the case of a Compaq device
|
*/
|
static int vortex_probe1(struct device *gendev, void __iomem *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];
|
const char *print_name = "3c59x";
|
struct pci_dev *pdev = NULL;
|
struct eisa_device *edev = NULL;
|
|
if (!printed_version) {
|
pr_info("%s", version);
|
printed_version = 1;
|
}
|
|
if (gendev) {
|
if ((pdev = DEVICE_PCI(gendev))) {
|
print_name = pci_name(pdev);
|
}
|
|
if ((edev = DEVICE_EISA(gendev))) {
|
print_name = dev_name(&edev->dev);
|
}
|
}
|
|
dev = alloc_etherdev(sizeof(*vp));
|
retval = -ENOMEM;
|
if (!dev)
|
goto out;
|
|
SET_NETDEV_DEV(dev, gendev);
|
vp = netdev_priv(dev);
|
|
option = global_options;
|
|
/* 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) {
|
if (options[card_idx] >= 0)
|
option = options[card_idx];
|
}
|
|
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)
|
pr_info("See Documentation/networking/device_drivers/ethernet/3com/vortex.rst\n");
|
|
pr_info("%s: 3Com %s %s at %p.\n",
|
print_name,
|
pdev ? "PCI" : "EISA",
|
vci->name,
|
ioaddr);
|
|
dev->base_addr = (unsigned long)ioaddr;
|
dev->irq = irq;
|
dev->mtu = mtu;
|
vp->ioaddr = ioaddr;
|
vp->large_frames = mtu > 1500;
|
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;
|
vp->window = -1;
|
|
/* module list only for Compaq device */
|
if (gendev == NULL) {
|
compaq_net_device = dev;
|
}
|
|
/* PCI-only startup logic */
|
if (pdev) {
|
/* 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) {
|
pr_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->mii_lock);
|
spin_lock_init(&vp->window_lock);
|
vp->gendev = gendev;
|
vp->mii.dev = dev;
|
vp->mii.mdio_read = mdio_read;
|
vp->mii.mdio_write = mdio_write;
|
vp->mii.phy_id_mask = 0x1f;
|
vp->mii.reg_num_mask = 0x1f;
|
|
/* Makes sure rings are at least 16 byte aligned. */
|
vp->rx_ring = dma_alloc_coherent(gendev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
|
+ sizeof(struct boom_tx_desc) * TX_RING_SIZE,
|
&vp->rx_ring_dma, GFP_KERNEL);
|
retval = -ENOMEM;
|
if (!vp->rx_ring)
|
goto free_device;
|
|
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);
|
if (edev)
|
eisa_set_drvdata(edev, 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 (global_full_duplex > 0)
|
vp->full_duplex = 1;
|
if (global_enable_wol > 0)
|
vp->enable_wol = 1;
|
|
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->mii.force_media = vp->full_duplex;
|
vp->options = option;
|
/* Read the station address from the EEPROM. */
|
{
|
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;
|
window_write16(vp, base + i, 0, Wn0EepromCmd);
|
/* Pause for at least 162 us. for the read to take place. */
|
for (timer = 10; timer >= 0; timer--) {
|
udelay(162);
|
if ((window_read16(vp, 0, Wn0EepromCmd) &
|
0x8000) == 0)
|
break;
|
}
|
eeprom[i] = window_read16(vp, 0, 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))
|
pr_cont(" ***INVALID CHECKSUM %4.4x*** ", checksum);
|
for (i = 0; i < 3; i++)
|
((__be16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
|
if (print_info)
|
pr_cont(" %pM", dev->dev_addr);
|
/* Unfortunately an all zero eeprom passes the checksum and this
|
gets found in the wild in failure cases. Crypto is hard 8) */
|
if (!is_valid_ether_addr(dev->dev_addr)) {
|
retval = -EINVAL;
|
pr_err("*** EEPROM MAC address is invalid.\n");
|
goto free_ring; /* With every pack */
|
}
|
for (i = 0; i < 6; i++)
|
window_write8(vp, dev->dev_addr[i], 2, i);
|
|
if (print_info)
|
pr_cont(", IRQ %d\n", dev->irq);
|
/* Tell them about an invalid IRQ. */
|
if (dev->irq <= 0 || dev->irq >= nr_irqs)
|
pr_warn(" *** Warning: IRQ %d is unlikely to work! ***\n",
|
dev->irq);
|
|
step = (window_read8(vp, 4, Wn4_NetDiag) & 0x1e) >> 1;
|
if (print_info) {
|
pr_info(" product code %02x%02x rev %02x.%d date %02d-%02d-%02d\n",
|
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 short n;
|
|
vp->cb_fn_base = pci_iomap(pdev, 2, 0);
|
if (!vp->cb_fn_base) {
|
retval = -ENOMEM;
|
goto free_ring;
|
}
|
|
if (print_info) {
|
pr_info("%s: CardBus functions mapped %16.16llx->%p\n",
|
print_name,
|
(unsigned long long)pci_resource_start(pdev, 2),
|
vp->cb_fn_base);
|
}
|
|
n = window_read16(vp, 2, Wn2_ResetOptions) & ~0x4010;
|
if (vp->drv_flags & INVERT_LED_PWR)
|
n |= 0x10;
|
if (vp->drv_flags & INVERT_MII_PWR)
|
n |= 0x4000;
|
window_write16(vp, n, 2, Wn2_ResetOptions);
|
if (vp->drv_flags & WNO_XCVR_PWR) {
|
window_write16(vp, 0x0800, 0, 0);
|
}
|
}
|
|
/* 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)
|
pr_info("Full duplex capable\n");
|
}
|
|
{
|
static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
|
unsigned int config;
|
vp->available_media = window_read16(vp, 3, Wn3_Options);
|
if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
|
vp->available_media = 0x40;
|
config = window_read32(vp, 3, Wn3_Config);
|
if (print_info) {
|
pr_debug(" Internal config register is %4.4x, transceivers %#x.\n",
|
config, window_read16(vp, 3, Wn3_Options));
|
pr_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) {
|
pr_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 ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) ||
|
dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
|
int phy, phy_idx = 0;
|
mii_preamble_required++;
|
if (vp->drv_flags & EXTRA_PREAMBLE)
|
mii_preamble_required++;
|
mdio_sync(vp, 32);
|
mdio_read(dev, 24, MII_BMSR);
|
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, MII_BMSR);
|
if (mii_status && mii_status != 0xffff) {
|
vp->phys[phy_idx++] = phyx;
|
if (print_info) {
|
pr_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) {
|
pr_warn(" ***WARNING*** No MII transceivers found!\n");
|
vp->phys[0] = 24;
|
} else {
|
vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE);
|
if (vp->full_duplex) {
|
/* Only advertise the FD media types. */
|
vp->advertising &= ~0x02A0;
|
mdio_write(dev, vp->phys[0], 4, vp->advertising);
|
}
|
}
|
vp->mii.phy_id = vp->phys[0];
|
}
|
|
if (vp->capabilities & CapBusMaster) {
|
vp->full_bus_master_tx = 1;
|
if (print_info) {
|
pr_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. */
|
if (vp->full_bus_master_tx) {
|
dev->netdev_ops = &boomrang_netdev_ops;
|
/* Actually, it still should work with iommu. */
|
if (card_idx < MAX_UNITS &&
|
((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) ||
|
hw_checksums[card_idx] == 1)) {
|
dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
|
}
|
} else
|
dev->netdev_ops = &vortex_netdev_ops;
|
|
if (print_info) {
|
pr_info("%s: scatter/gather %sabled. h/w checksums %sabled\n",
|
print_name,
|
(dev->features & NETIF_F_SG) ? "en":"dis",
|
(dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
|
}
|
|
dev->ethtool_ops = &vortex_ethtool_ops;
|
dev->watchdog_timeo = (watchdog * HZ) / 1000;
|
|
if (pdev) {
|
vp->pm_state_valid = 1;
|
pci_save_state(pdev);
|
acpi_set_WOL(dev);
|
}
|
retval = register_netdev(dev);
|
if (retval == 0)
|
return 0;
|
|
free_ring:
|
dma_free_coherent(&pdev->dev,
|
sizeof(struct boom_rx_desc) * RX_RING_SIZE +
|
sizeof(struct boom_tx_desc) * TX_RING_SIZE,
|
vp->rx_ring, vp->rx_ring_dma);
|
free_device:
|
free_netdev(dev);
|
pr_err(PFX "vortex_probe1 fails. Returns %d\n", retval);
|
out:
|
return retval;
|
}
|
|
static void
|
issue_and_wait(struct net_device *dev, int cmd)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
int i;
|
|
iowrite16(cmd, ioaddr + EL3_CMD);
|
for (i = 0; i < 2000; i++) {
|
if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
|
return;
|
}
|
|
/* OK, that didn't work. Do it the slow way. One second */
|
for (i = 0; i < 100000; i++) {
|
if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) {
|
if (vortex_debug > 1)
|
pr_info("%s: command 0x%04x took %d usecs\n",
|
dev->name, cmd, i * 10);
|
return;
|
}
|
udelay(10);
|
}
|
pr_err("%s: command 0x%04x did not complete! Status=0x%x\n",
|
dev->name, cmd, ioread16(ioaddr + EL3_STATUS));
|
}
|
|
static void
|
vortex_set_duplex(struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
|
pr_info("%s: setting %s-duplex.\n",
|
dev->name, (vp->full_duplex) ? "full" : "half");
|
|
/* Set the full-duplex bit. */
|
window_write16(vp,
|
((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
|
(vp->large_frames ? 0x40 : 0) |
|
((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
|
0x100 : 0),
|
3, Wn3_MAC_Ctrl);
|
}
|
|
static void vortex_check_media(struct net_device *dev, unsigned int init)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
unsigned int ok_to_print = 0;
|
|
if (vortex_debug > 3)
|
ok_to_print = 1;
|
|
if (mii_check_media(&vp->mii, ok_to_print, init)) {
|
vp->full_duplex = vp->mii.full_duplex;
|
vortex_set_duplex(dev);
|
} else if (init) {
|
vortex_set_duplex(dev);
|
}
|
}
|
|
static int
|
vortex_up(struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
unsigned int config;
|
int i, mii_reg5, err = 0;
|
|
if (VORTEX_PCI(vp)) {
|
pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
|
if (vp->pm_state_valid)
|
pci_restore_state(VORTEX_PCI(vp));
|
err = pci_enable_device(VORTEX_PCI(vp));
|
if (err) {
|
pr_warn("%s: Could not enable device\n", dev->name);
|
goto err_out;
|
}
|
}
|
|
/* Before initializing select the active media port. */
|
config = window_read32(vp, 3, Wn3_Config);
|
|
if (vp->media_override != 7) {
|
pr_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)
|
pr_info("%s: using NWAY device table, not %d\n",
|
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)
|
pr_info("%s: first available media type: %s\n",
|
dev->name, media_tbl[dev->if_port].name);
|
}
|
} else {
|
dev->if_port = vp->default_media;
|
if (vortex_debug > 1)
|
pr_info("%s: using default media %s\n",
|
dev->name, media_tbl[dev->if_port].name);
|
}
|
|
timer_setup(&vp->timer, vortex_timer, 0);
|
mod_timer(&vp->timer, RUN_AT(media_tbl[dev->if_port].wait));
|
|
if (vortex_debug > 1)
|
pr_debug("%s: Initial media type %s.\n",
|
dev->name, media_tbl[dev->if_port].name);
|
|
vp->full_duplex = vp->mii.force_media;
|
config = BFINS(config, dev->if_port, 20, 4);
|
if (vortex_debug > 6)
|
pr_debug("vortex_up(): writing 0x%x to InternalConfig\n", config);
|
window_write32(vp, config, 3, Wn3_Config);
|
|
if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
|
mdio_read(dev, vp->phys[0], MII_BMSR);
|
mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
|
vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
|
vp->mii.full_duplex = vp->full_duplex;
|
|
vortex_check_media(dev, 1);
|
}
|
else
|
vortex_set_duplex(dev);
|
|
issue_and_wait(dev, TxReset);
|
/*
|
* Don't reset the PHY - that upsets autonegotiation during DHCP operations.
|
*/
|
issue_and_wait(dev, RxReset|0x04);
|
|
|
iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
|
|
if (vortex_debug > 1) {
|
pr_debug("%s: vortex_up() irq %d media status %4.4x.\n",
|
dev->name, dev->irq, window_read16(vp, 4, Wn4_Media));
|
}
|
|
/* Set the station address and mask in window 2 each time opened. */
|
for (i = 0; i < 6; i++)
|
window_write8(vp, dev->dev_addr[i], 2, i);
|
for (; i < 12; i+=2)
|
window_write16(vp, 0, 2, i);
|
|
if (vp->cb_fn_base) {
|
unsigned short n = window_read16(vp, 2, Wn2_ResetOptions) & ~0x4010;
|
if (vp->drv_flags & INVERT_LED_PWR)
|
n |= 0x10;
|
if (vp->drv_flags & INVERT_MII_PWR)
|
n |= 0x4000;
|
window_write16(vp, n, 2, Wn2_ResetOptions);
|
}
|
|
if (dev->if_port == XCVR_10base2)
|
/* Start the thinnet transceiver. We should really wait 50ms...*/
|
iowrite16(StartCoax, ioaddr + EL3_CMD);
|
if (dev->if_port != XCVR_NWAY) {
|
window_write16(vp,
|
(window_read16(vp, 4, Wn4_Media) &
|
~(Media_10TP|Media_SQE)) |
|
media_tbl[dev->if_port].media_bits,
|
4, Wn4_Media);
|
}
|
|
/* Switch to the stats window, and clear all stats by reading. */
|
iowrite16(StatsDisable, ioaddr + EL3_CMD);
|
for (i = 0; i < 10; i++)
|
window_read8(vp, 6, i);
|
window_read16(vp, 6, 10);
|
window_read16(vp, 6, 12);
|
/* New: On the Vortex we must also clear the BadSSD counter. */
|
window_read8(vp, 4, 12);
|
/* ..and on the Boomerang we enable the extra statistics bits. */
|
window_write16(vp, 0x0040, 4, Wn4_NetDiag);
|
|
if (vp->full_bus_master_rx) { /* Boomerang bus master. */
|
vp->cur_rx = 0;
|
/* Initialize the RxEarly register as recommended. */
|
iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
|
iowrite32(0x0020, ioaddr + PktStatus);
|
iowrite32(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)
|
iowrite8(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] = NULL;
|
iowrite32(0, ioaddr + DownListPtr);
|
}
|
/* Set receiver mode: presumably accept b-case and phys addr only. */
|
set_rx_mode(dev);
|
/* enable 802.1q tagged frames */
|
set_8021q_mode(dev, 1);
|
iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
|
|
iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
|
iowrite16(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;
|
iowrite16(vp->status_enable, ioaddr + EL3_CMD);
|
/* Ack all pending events, and set active indicator mask. */
|
iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
|
ioaddr + EL3_CMD);
|
iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
|
if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
|
iowrite32(0x8000, vp->cb_fn_base + 4);
|
netif_start_queue (dev);
|
netdev_reset_queue(dev);
|
err_out:
|
return err;
|
}
|
|
static int
|
vortex_open(struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
int i;
|
int retval;
|
dma_addr_t dma;
|
|
/* Use the now-standard shared IRQ implementation. */
|
if ((retval = request_irq(dev->irq, vortex_boomerang_interrupt, IRQF_SHARED, dev->name, dev))) {
|
pr_err("%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
|
goto err;
|
}
|
|
if (vp->full_bus_master_rx) { /* Boomerang bus master. */
|
if (vortex_debug > 2)
|
pr_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 = __netdev_alloc_skb(dev, PKT_BUF_SZ + NET_IP_ALIGN,
|
GFP_KERNEL);
|
vp->rx_skbuff[i] = skb;
|
if (skb == NULL)
|
break; /* Bad news! */
|
|
skb_reserve(skb, NET_IP_ALIGN); /* Align IP on 16 byte boundaries */
|
dma = dma_map_single(vp->gendev, skb->data,
|
PKT_BUF_SZ, DMA_FROM_DEVICE);
|
if (dma_mapping_error(vp->gendev, dma))
|
break;
|
vp->rx_ring[i].addr = cpu_to_le32(dma);
|
}
|
if (i != RX_RING_SIZE) {
|
pr_emerg("%s: no memory for rx ring\n", dev->name);
|
retval = -ENOMEM;
|
goto err_free_skb;
|
}
|
/* Wrap the ring. */
|
vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
|
}
|
|
retval = vortex_up(dev);
|
if (!retval)
|
goto out;
|
|
err_free_skb:
|
for (i = 0; i < RX_RING_SIZE; i++) {
|
if (vp->rx_skbuff[i]) {
|
dev_kfree_skb(vp->rx_skbuff[i]);
|
vp->rx_skbuff[i] = NULL;
|
}
|
}
|
free_irq(dev->irq, dev);
|
err:
|
if (vortex_debug > 1)
|
pr_err("%s: vortex_open() fails: returning %d\n", dev->name, retval);
|
out:
|
return retval;
|
}
|
|
static void
|
vortex_timer(struct timer_list *t)
|
{
|
struct vortex_private *vp = from_timer(vp, t, timer);
|
struct net_device *dev = vp->mii.dev;
|
void __iomem *ioaddr = vp->ioaddr;
|
int next_tick = 60*HZ;
|
int ok = 0;
|
int media_status;
|
|
if (vortex_debug > 2) {
|
pr_debug("%s: Media selection timer tick happened, %s.\n",
|
dev->name, media_tbl[dev->if_port].name);
|
pr_debug("dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
|
}
|
|
media_status = window_read16(vp, 4, Wn4_Media);
|
switch (dev->if_port) {
|
case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
|
if (media_status & Media_LnkBeat) {
|
netif_carrier_on(dev);
|
ok = 1;
|
if (vortex_debug > 1)
|
pr_debug("%s: Media %s has link beat, %x.\n",
|
dev->name, media_tbl[dev->if_port].name, media_status);
|
} else {
|
netif_carrier_off(dev);
|
if (vortex_debug > 1) {
|
pr_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:
|
{
|
ok = 1;
|
vortex_check_media(dev, 0);
|
}
|
break;
|
default: /* Other media types handled by Tx timeouts. */
|
if (vortex_debug > 1)
|
pr_debug("%s: Media %s has no indication, %x.\n",
|
dev->name, media_tbl[dev->if_port].name, media_status);
|
ok = 1;
|
}
|
|
if (dev->flags & IFF_SLAVE || !netif_carrier_ok(dev))
|
next_tick = 5*HZ;
|
|
if (vp->medialock)
|
goto leave_media_alone;
|
|
if (!ok) {
|
unsigned int config;
|
|
spin_lock_irq(&vp->lock);
|
|
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)
|
pr_debug("%s: Media selection failing, using default %s port.\n",
|
dev->name, media_tbl[dev->if_port].name);
|
} else {
|
if (vortex_debug > 1)
|
pr_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;
|
}
|
window_write16(vp,
|
(media_status & ~(Media_10TP|Media_SQE)) |
|
media_tbl[dev->if_port].media_bits,
|
4, Wn4_Media);
|
|
config = window_read32(vp, 3, Wn3_Config);
|
config = BFINS(config, dev->if_port, 20, 4);
|
window_write32(vp, config, 3, Wn3_Config);
|
|
iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
|
ioaddr + EL3_CMD);
|
if (vortex_debug > 1)
|
pr_debug("wrote 0x%08x to Wn3_Config\n", config);
|
/* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
|
|
spin_unlock_irq(&vp->lock);
|
}
|
|
leave_media_alone:
|
if (vortex_debug > 2)
|
pr_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)
|
iowrite16(FakeIntr, ioaddr + EL3_CMD);
|
}
|
|
static void vortex_tx_timeout(struct net_device *dev, unsigned int txqueue)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
|
pr_err("%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
|
dev->name, ioread8(ioaddr + TxStatus),
|
ioread16(ioaddr + EL3_STATUS));
|
pr_err(" diagnostics: net %04x media %04x dma %08x fifo %04x\n",
|
window_read16(vp, 4, Wn4_NetDiag),
|
window_read16(vp, 4, Wn4_Media),
|
ioread32(ioaddr + PktStatus),
|
window_read16(vp, 4, Wn4_FIFODiag));
|
/* Slight code bloat to be user friendly. */
|
if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
|
pr_err("%s: Transmitter encountered 16 collisions --"
|
" network cable problem?\n", dev->name);
|
if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
|
pr_err("%s: Interrupt posted but not delivered --"
|
" IRQ blocked by another device?\n", dev->name);
|
/* Bad idea here.. but we might as well handle a few events. */
|
vortex_boomerang_interrupt(dev->irq, dev);
|
}
|
|
if (vortex_debug > 0)
|
dump_tx_ring(dev);
|
|
issue_and_wait(dev, TxReset);
|
|
dev->stats.tx_errors++;
|
if (vp->full_bus_master_tx) {
|
pr_debug("%s: Resetting the Tx ring pointer.\n", dev->name);
|
if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
|
iowrite32(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);
|
netdev_reset_queue (dev);
|
}
|
if (vp->drv_flags & IS_BOOMERANG)
|
iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
|
iowrite16(DownUnstall, ioaddr + EL3_CMD);
|
} else {
|
dev->stats.tx_dropped++;
|
netif_wake_queue(dev);
|
netdev_reset_queue(dev);
|
}
|
/* Issue Tx Enable */
|
iowrite16(TxEnable, ioaddr + EL3_CMD);
|
netif_trans_update(dev); /* prevent tx timeout */
|
}
|
|
/*
|
* 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 = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
int do_tx_reset = 0, reset_mask = 0;
|
unsigned char tx_status = 0;
|
|
if (vortex_debug > 2) {
|
pr_err("%s: vortex_error(), status=0x%x\n", dev->name, status);
|
}
|
|
if (status & TxComplete) { /* Really "TxError" for us. */
|
tx_status = ioread8(ioaddr + TxStatus);
|
/* Presumably a tx-timeout. We must merely re-enable. */
|
if (vortex_debug > 2 ||
|
(tx_status != 0x88 && vortex_debug > 0)) {
|
pr_err("%s: Transmit error, Tx status register %2.2x.\n",
|
dev->name, tx_status);
|
if (tx_status == 0x82) {
|
pr_err("Probably a duplex mismatch. See "
|
"Documentation/networking/device_drivers/ethernet/3com/vortex.rst\n");
|
}
|
dump_tx_ring(dev);
|
}
|
if (tx_status & 0x14) dev->stats.tx_fifo_errors++;
|
if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
|
if (tx_status & 0x08) vp->xstats.tx_max_collisions++;
|
iowrite8(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. */
|
iowrite16(TxEnable, ioaddr + EL3_CMD);
|
}
|
}
|
|
if (status & RxEarly) /* Rx early is unused. */
|
iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
|
|
if (status & StatsFull) { /* Empty statistics. */
|
static int DoneDidThat;
|
if (vortex_debug > 4)
|
pr_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 &&
|
ioread16(ioaddr + EL3_STATUS) & StatsFull) {
|
pr_warn("%s: Updating statistics failed, disabling stats as an interrupt source\n",
|
dev->name);
|
iowrite16(SetIntrEnb |
|
(window_read16(vp, 5, 10) & ~StatsFull),
|
ioaddr + EL3_CMD);
|
vp->intr_enable &= ~StatsFull;
|
DoneDidThat++;
|
}
|
}
|
if (status & IntReq) { /* Restore all interrupt sources. */
|
iowrite16(vp->status_enable, ioaddr + EL3_CMD);
|
iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
|
}
|
if (status & HostError) {
|
u16 fifo_diag;
|
fifo_diag = window_read16(vp, 4, Wn4_FIFODiag);
|
pr_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 = ioread32(ioaddr + PktStatus);
|
/* 0x80000000 PCI master abort. */
|
/* 0x40000000 PCI target abort. */
|
if (vortex_debug)
|
pr_err("%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
|
|
/* In this case, blow the card away */
|
/* Must not enter D3 or we can't legally issue the reset! */
|
vortex_down(dev, 0);
|
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);
|
/* enable 802.1q VLAN tagged frames */
|
set_8021q_mode(dev, 1);
|
iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
|
iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
|
}
|
}
|
|
if (do_tx_reset) {
|
issue_and_wait(dev, TxReset|reset_mask);
|
iowrite16(TxEnable, ioaddr + EL3_CMD);
|
if (!vp->full_bus_master_tx)
|
netif_wake_queue(dev);
|
}
|
}
|
|
static netdev_tx_t
|
vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
int skblen = skb->len;
|
|
/* Put out the doubleword header... */
|
iowrite32(skb->len, ioaddr + TX_FIFO);
|
if (vp->bus_master) {
|
/* Set the bus-master controller to transfer the packet. */
|
int len = (skb->len + 3) & ~3;
|
vp->tx_skb_dma = dma_map_single(vp->gendev, skb->data, len,
|
DMA_TO_DEVICE);
|
if (dma_mapping_error(vp->gendev, vp->tx_skb_dma)) {
|
dev_kfree_skb_any(skb);
|
dev->stats.tx_dropped++;
|
return NETDEV_TX_OK;
|
}
|
|
spin_lock_irq(&vp->window_lock);
|
window_set(vp, 7);
|
iowrite32(vp->tx_skb_dma, ioaddr + Wn7_MasterAddr);
|
iowrite16(len, ioaddr + Wn7_MasterLen);
|
spin_unlock_irq(&vp->window_lock);
|
vp->tx_skb = skb;
|
skb_tx_timestamp(skb);
|
iowrite16(StartDMADown, ioaddr + EL3_CMD);
|
/* netif_wake_queue() will be called at the DMADone interrupt. */
|
} else {
|
/* ... and the packet rounded to a doubleword. */
|
skb_tx_timestamp(skb);
|
iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
|
dev_consume_skb_any (skb);
|
if (ioread16(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);
|
iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
|
}
|
}
|
|
netdev_sent_queue(dev, skblen);
|
|
/* Clear the Tx status stack. */
|
{
|
int tx_status;
|
int i = 32;
|
|
while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
|
if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
|
if (vortex_debug > 2)
|
pr_debug("%s: Tx error, status %2.2x.\n",
|
dev->name, tx_status);
|
if (tx_status & 0x04) dev->stats.tx_fifo_errors++;
|
if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
|
if (tx_status & 0x30) {
|
issue_and_wait(dev, TxReset);
|
}
|
iowrite16(TxEnable, ioaddr + EL3_CMD);
|
}
|
iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
|
}
|
}
|
return NETDEV_TX_OK;
|
}
|
|
static netdev_tx_t
|
boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
/* Calculate the next Tx descriptor entry. */
|
int entry = vp->cur_tx % TX_RING_SIZE;
|
int skblen = skb->len;
|
struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
|
unsigned long flags;
|
dma_addr_t dma_addr;
|
|
if (vortex_debug > 6) {
|
pr_debug("boomerang_start_xmit()\n");
|
pr_debug("%s: Trying to send a packet, Tx index %d.\n",
|
dev->name, vp->cur_tx);
|
}
|
|
/*
|
* We can't allow a recursion from our interrupt handler back into the
|
* tx routine, as they take the same spin lock, and that causes
|
* deadlock. Just return NETDEV_TX_BUSY and let the stack try again in
|
* a bit
|
*/
|
if (vp->handling_irq)
|
return NETDEV_TX_BUSY;
|
|
if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
|
if (vortex_debug > 0)
|
pr_warn("%s: BUG! Tx Ring full, refusing to send buffer\n",
|
dev->name);
|
netif_stop_queue(dev);
|
return NETDEV_TX_BUSY;
|
}
|
|
vp->tx_skbuff[entry] = skb;
|
|
vp->tx_ring[entry].next = 0;
|
#if DO_ZEROCOPY
|
if (skb->ip_summed != CHECKSUM_PARTIAL)
|
vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
|
else
|
vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
|
|
if (!skb_shinfo(skb)->nr_frags) {
|
dma_addr = dma_map_single(vp->gendev, skb->data, skb->len,
|
DMA_TO_DEVICE);
|
if (dma_mapping_error(vp->gendev, dma_addr))
|
goto out_dma_err;
|
|
vp->tx_ring[entry].frag[0].addr = cpu_to_le32(dma_addr);
|
vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
|
} else {
|
int i;
|
|
dma_addr = dma_map_single(vp->gendev, skb->data,
|
skb_headlen(skb), DMA_TO_DEVICE);
|
if (dma_mapping_error(vp->gendev, dma_addr))
|
goto out_dma_err;
|
|
vp->tx_ring[entry].frag[0].addr = cpu_to_le32(dma_addr);
|
vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb_headlen(skb));
|
|
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
|
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
|
|
dma_addr = skb_frag_dma_map(vp->gendev, frag,
|
0,
|
skb_frag_size(frag),
|
DMA_TO_DEVICE);
|
if (dma_mapping_error(vp->gendev, dma_addr)) {
|
for(i = i-1; i >= 0; i--)
|
dma_unmap_page(vp->gendev,
|
le32_to_cpu(vp->tx_ring[entry].frag[i+1].addr),
|
le32_to_cpu(vp->tx_ring[entry].frag[i+1].length),
|
DMA_TO_DEVICE);
|
|
dma_unmap_single(vp->gendev,
|
le32_to_cpu(vp->tx_ring[entry].frag[0].addr),
|
le32_to_cpu(vp->tx_ring[entry].frag[0].length),
|
DMA_TO_DEVICE);
|
|
goto out_dma_err;
|
}
|
|
vp->tx_ring[entry].frag[i+1].addr =
|
cpu_to_le32(dma_addr);
|
|
if (i == skb_shinfo(skb)->nr_frags-1)
|
vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(skb_frag_size(frag)|LAST_FRAG);
|
else
|
vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(skb_frag_size(frag));
|
}
|
}
|
#else
|
dma_addr = dma_map_single(vp->gendev, skb->data, skb->len, DMA_TO_DEVICE);
|
if (dma_mapping_error(vp->gendev, dma_addr))
|
goto out_dma_err;
|
vp->tx_ring[entry].addr = cpu_to_le32(dma_addr);
|
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 (ioread32(ioaddr + DownListPtr) == 0) {
|
iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
|
vp->queued_packet++;
|
}
|
|
vp->cur_tx++;
|
netdev_sent_queue(dev, skblen);
|
|
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
|
}
|
skb_tx_timestamp(skb);
|
iowrite16(DownUnstall, ioaddr + EL3_CMD);
|
spin_unlock_irqrestore(&vp->lock, flags);
|
out:
|
return NETDEV_TX_OK;
|
out_dma_err:
|
dev_err(vp->gendev, "Error mapping dma buffer\n");
|
goto out;
|
}
|
|
/* 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 irqreturn_t
|
_vortex_interrupt(int irq, struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr;
|
int status;
|
int work_done = max_interrupt_work;
|
int handled = 0;
|
unsigned int bytes_compl = 0, pkts_compl = 0;
|
|
ioaddr = vp->ioaddr;
|
|
status = ioread16(ioaddr + EL3_STATUS);
|
|
if (vortex_debug > 6)
|
pr_debug("vortex_interrupt(). status=0x%4x\n", status);
|
|
if ((status & IntLatch) == 0)
|
goto handler_exit; /* No interrupt: shared IRQs cause this */
|
handled = 1;
|
|
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)
|
pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n",
|
dev->name, status, ioread8(ioaddr + Timer));
|
|
spin_lock(&vp->window_lock);
|
window_set(vp, 7);
|
|
do {
|
if (vortex_debug > 5)
|
pr_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)
|
pr_debug(" TX room bit was handled.\n");
|
/* There's room in the FIFO for a full-sized packet. */
|
iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
|
netif_wake_queue (dev);
|
}
|
|
if (status & DMADone) {
|
if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
|
iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
|
dma_unmap_single(vp->gendev, vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, DMA_TO_DEVICE);
|
pkts_compl++;
|
bytes_compl += vp->tx_skb->len;
|
dev_consume_skb_irq(vp->tx_skb); /* Release the transferred buffer */
|
if (ioread16(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. */
|
iowrite16(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;
|
if (status & RxEarly)
|
vortex_rx(dev);
|
spin_unlock(&vp->window_lock);
|
vortex_error(dev, status);
|
spin_lock(&vp->window_lock);
|
window_set(vp, 7);
|
}
|
|
if (--work_done < 0) {
|
pr_warn("%s: Too much work in interrupt, status %4.4x\n",
|
dev->name, status);
|
/* Disable all pending interrupts. */
|
do {
|
vp->deferred |= status;
|
iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
|
ioaddr + EL3_CMD);
|
iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
|
} while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
|
/* The timer will reenable interrupts. */
|
mod_timer(&vp->timer, jiffies + 1*HZ);
|
break;
|
}
|
/* Acknowledge the IRQ. */
|
iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
|
} while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
|
|
netdev_completed_queue(dev, pkts_compl, bytes_compl);
|
spin_unlock(&vp->window_lock);
|
|
if (vortex_debug > 4)
|
pr_debug("%s: exiting interrupt, status %4.4x.\n",
|
dev->name, status);
|
handler_exit:
|
return IRQ_RETVAL(handled);
|
}
|
|
/*
|
* This is the ISR for the boomerang series chips.
|
* full_bus_master_tx == 1 && full_bus_master_rx == 1
|
*/
|
|
static irqreturn_t
|
_boomerang_interrupt(int irq, struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr;
|
int status;
|
int work_done = max_interrupt_work;
|
int handled = 0;
|
unsigned int bytes_compl = 0, pkts_compl = 0;
|
|
ioaddr = vp->ioaddr;
|
|
vp->handling_irq = 1;
|
|
status = ioread16(ioaddr + EL3_STATUS);
|
|
if (vortex_debug > 6)
|
pr_debug("boomerang_interrupt. status=0x%4x\n", status);
|
|
if ((status & IntLatch) == 0)
|
goto handler_exit; /* No interrupt: shared IRQs can cause this */
|
handled = 1;
|
|
if (status == 0xffff) { /* h/w no longer present (hotplug)? */
|
if (vortex_debug > 1)
|
pr_debug("boomerang_interrupt(1): status = 0xffff\n");
|
goto handler_exit;
|
}
|
|
if (status & IntReq) {
|
status |= vp->deferred;
|
vp->deferred = 0;
|
}
|
|
if (vortex_debug > 4)
|
pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n",
|
dev->name, status, ioread8(ioaddr + Timer));
|
do {
|
if (vortex_debug > 5)
|
pr_debug("%s: In interrupt loop, status %4.4x.\n",
|
dev->name, status);
|
if (status & UpComplete) {
|
iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
|
if (vortex_debug > 5)
|
pr_debug("boomerang_interrupt->boomerang_rx\n");
|
boomerang_rx(dev);
|
}
|
|
if (status & DownComplete) {
|
unsigned int dirty_tx = vp->dirty_tx;
|
|
iowrite16(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 (ioread32(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;
|
dma_unmap_single(vp->gendev,
|
le32_to_cpu(vp->tx_ring[entry].frag[0].addr),
|
le32_to_cpu(vp->tx_ring[entry].frag[0].length)&0xFFF,
|
DMA_TO_DEVICE);
|
|
for (i=1; i<=skb_shinfo(skb)->nr_frags; i++)
|
dma_unmap_page(vp->gendev,
|
le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
|
le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
|
DMA_TO_DEVICE);
|
#else
|
dma_unmap_single(vp->gendev,
|
le32_to_cpu(vp->tx_ring[entry].addr), skb->len, DMA_TO_DEVICE);
|
#endif
|
pkts_compl++;
|
bytes_compl += skb->len;
|
dev_consume_skb_irq(skb);
|
vp->tx_skbuff[entry] = NULL;
|
} else {
|
pr_debug("boomerang_interrupt: no skb!\n");
|
}
|
/* dev->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)
|
pr_debug("boomerang_interrupt: wake queue\n");
|
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) {
|
pr_warn("%s: Too much work in interrupt, status %4.4x\n",
|
dev->name, status);
|
/* Disable all pending interrupts. */
|
do {
|
vp->deferred |= status;
|
iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
|
ioaddr + EL3_CMD);
|
iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
|
} while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
|
/* The timer will reenable interrupts. */
|
mod_timer(&vp->timer, jiffies + 1*HZ);
|
break;
|
}
|
/* Acknowledge the IRQ. */
|
iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
|
if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
|
iowrite32(0x8000, vp->cb_fn_base + 4);
|
|
} while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
|
netdev_completed_queue(dev, pkts_compl, bytes_compl);
|
|
if (vortex_debug > 4)
|
pr_debug("%s: exiting interrupt, status %4.4x.\n",
|
dev->name, status);
|
handler_exit:
|
vp->handling_irq = 0;
|
return IRQ_RETVAL(handled);
|
}
|
|
static irqreturn_t
|
vortex_boomerang_interrupt(int irq, void *dev_id)
|
{
|
struct net_device *dev = dev_id;
|
struct vortex_private *vp = netdev_priv(dev);
|
unsigned long flags;
|
irqreturn_t ret;
|
|
spin_lock_irqsave(&vp->lock, flags);
|
|
if (vp->full_bus_master_rx)
|
ret = _boomerang_interrupt(dev->irq, dev);
|
else
|
ret = _vortex_interrupt(dev->irq, dev);
|
|
spin_unlock_irqrestore(&vp->lock, flags);
|
|
return ret;
|
}
|
|
static int vortex_rx(struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
int i;
|
short rx_status;
|
|
if (vortex_debug > 5)
|
pr_debug("vortex_rx(): status %4.4x, rx_status %4.4x.\n",
|
ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
|
while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
|
if (rx_status & 0x4000) { /* Error, update stats. */
|
unsigned char rx_error = ioread8(ioaddr + RxErrors);
|
if (vortex_debug > 2)
|
pr_debug(" Rx error: status %2.2x.\n", rx_error);
|
dev->stats.rx_errors++;
|
if (rx_error & 0x01) dev->stats.rx_over_errors++;
|
if (rx_error & 0x02) dev->stats.rx_length_errors++;
|
if (rx_error & 0x04) dev->stats.rx_frame_errors++;
|
if (rx_error & 0x08) dev->stats.rx_crc_errors++;
|
if (rx_error & 0x10) dev->stats.rx_length_errors++;
|
} else {
|
/* The packet length: up to 4.5K!. */
|
int pkt_len = rx_status & 0x1fff;
|
struct sk_buff *skb;
|
|
skb = netdev_alloc_skb(dev, pkt_len + 5);
|
if (vortex_debug > 4)
|
pr_debug("Receiving packet size %d status %4.4x.\n",
|
pkt_len, rx_status);
|
if (skb != NULL) {
|
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 &&
|
! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
|
dma_addr_t dma = dma_map_single(vp->gendev, skb_put(skb, pkt_len),
|
pkt_len, DMA_FROM_DEVICE);
|
iowrite32(dma, ioaddr + Wn7_MasterAddr);
|
iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
|
iowrite16(StartDMAUp, ioaddr + EL3_CMD);
|
while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
|
;
|
dma_unmap_single(vp->gendev, dma, pkt_len, DMA_FROM_DEVICE);
|
} else {
|
ioread32_rep(ioaddr + RX_FIFO,
|
skb_put(skb, pkt_len),
|
(pkt_len + 3) >> 2);
|
}
|
iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
|
skb->protocol = eth_type_trans(skb, dev);
|
netif_rx(skb);
|
dev->stats.rx_packets++;
|
/* Wait a limited time to go to next packet. */
|
for (i = 200; i >= 0; i--)
|
if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
|
break;
|
continue;
|
} else if (vortex_debug > 0)
|
pr_notice("%s: No memory to allocate a sk_buff of size %d.\n",
|
dev->name, pkt_len);
|
dev->stats.rx_dropped++;
|
}
|
issue_and_wait(dev, RxDiscard);
|
}
|
|
return 0;
|
}
|
|
static int
|
boomerang_rx(struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
int entry = vp->cur_rx % RX_RING_SIZE;
|
void __iomem *ioaddr = vp->ioaddr;
|
int rx_status;
|
int rx_work_limit = RX_RING_SIZE;
|
|
if (vortex_debug > 5)
|
pr_debug("boomerang_rx(): status %4.4x\n", ioread16(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)
|
pr_debug(" Rx error: status %2.2x.\n", rx_error);
|
dev->stats.rx_errors++;
|
if (rx_error & 0x01) dev->stats.rx_over_errors++;
|
if (rx_error & 0x02) dev->stats.rx_length_errors++;
|
if (rx_error & 0x04) dev->stats.rx_frame_errors++;
|
if (rx_error & 0x08) dev->stats.rx_crc_errors++;
|
if (rx_error & 0x10) dev->stats.rx_length_errors++;
|
} else {
|
/* The packet length: up to 4.5K!. */
|
int pkt_len = rx_status & 0x1fff;
|
struct sk_buff *skb, *newskb;
|
dma_addr_t newdma;
|
dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
|
|
if (vortex_debug > 4)
|
pr_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 = netdev_alloc_skb(dev, pkt_len + 2)) != NULL) {
|
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
|
dma_sync_single_for_cpu(vp->gendev, dma, PKT_BUF_SZ, DMA_FROM_DEVICE);
|
/* 'skb_put()' points to the start of sk_buff data area. */
|
skb_put_data(skb, vp->rx_skbuff[entry]->data,
|
pkt_len);
|
dma_sync_single_for_device(vp->gendev, dma, PKT_BUF_SZ, DMA_FROM_DEVICE);
|
vp->rx_copy++;
|
} else {
|
/* Pre-allocate the replacement skb. If it or its
|
* mapping fails then recycle the buffer thats already
|
* in place
|
*/
|
newskb = netdev_alloc_skb_ip_align(dev, PKT_BUF_SZ);
|
if (!newskb) {
|
dev->stats.rx_dropped++;
|
goto clear_complete;
|
}
|
newdma = dma_map_single(vp->gendev, newskb->data,
|
PKT_BUF_SZ, DMA_FROM_DEVICE);
|
if (dma_mapping_error(vp->gendev, newdma)) {
|
dev->stats.rx_dropped++;
|
consume_skb(newskb);
|
goto clear_complete;
|
}
|
|
/* Pass up the skbuff already on the Rx ring. */
|
skb = vp->rx_skbuff[entry];
|
vp->rx_skbuff[entry] = newskb;
|
vp->rx_ring[entry].addr = cpu_to_le32(newdma);
|
skb_put(skb, pkt_len);
|
dma_unmap_single(vp->gendev, dma, PKT_BUF_SZ, DMA_FROM_DEVICE);
|
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->stats.rx_packets++;
|
}
|
|
clear_complete:
|
vp->rx_ring[entry].status = 0; /* Clear complete bit. */
|
iowrite16(UpUnstall, ioaddr + EL3_CMD);
|
entry = (++vp->cur_rx) % RX_RING_SIZE;
|
}
|
return 0;
|
}
|
|
static void
|
vortex_down(struct net_device *dev, int final_down)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
|
netdev_reset_queue(dev);
|
netif_stop_queue(dev);
|
|
del_timer_sync(&vp->timer);
|
|
/* Turn off statistics ASAP. We update dev->stats below. */
|
iowrite16(StatsDisable, ioaddr + EL3_CMD);
|
|
/* Disable the receiver and transmitter. */
|
iowrite16(RxDisable, ioaddr + EL3_CMD);
|
iowrite16(TxDisable, ioaddr + EL3_CMD);
|
|
/* Disable receiving 802.1q tagged frames */
|
set_8021q_mode(dev, 0);
|
|
if (dev->if_port == XCVR_10base2)
|
/* Turn off thinnet power. Green! */
|
iowrite16(StopCoax, ioaddr + EL3_CMD);
|
|
iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
|
|
update_stats(ioaddr, dev);
|
if (vp->full_bus_master_rx)
|
iowrite32(0, ioaddr + UpListPtr);
|
if (vp->full_bus_master_tx)
|
iowrite32(0, ioaddr + DownListPtr);
|
|
if (final_down && VORTEX_PCI(vp)) {
|
vp->pm_state_valid = 1;
|
pci_save_state(VORTEX_PCI(vp));
|
acpi_set_WOL(dev);
|
}
|
}
|
|
static int
|
vortex_close(struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
int i;
|
|
if (netif_device_present(dev))
|
vortex_down(dev, 1);
|
|
if (vortex_debug > 1) {
|
pr_debug("%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
|
dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
|
pr_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 &&
|
(vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
|
pr_warn("%s supports hardware checksums, and we're not using them!\n",
|
dev->name);
|
}
|
#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]) {
|
dma_unmap_single(vp->gendev, le32_to_cpu(vp->rx_ring[i].addr),
|
PKT_BUF_SZ, DMA_FROM_DEVICE);
|
dev_kfree_skb(vp->rx_skbuff[i]);
|
vp->rx_skbuff[i] = NULL;
|
}
|
}
|
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++)
|
dma_unmap_single(vp->gendev,
|
le32_to_cpu(vp->tx_ring[i].frag[k].addr),
|
le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
|
DMA_TO_DEVICE);
|
#else
|
dma_unmap_single(vp->gendev, le32_to_cpu(vp->tx_ring[i].addr), skb->len, DMA_TO_DEVICE);
|
#endif
|
dev_kfree_skb(skb);
|
vp->tx_skbuff[i] = NULL;
|
}
|
}
|
}
|
|
return 0;
|
}
|
|
static void
|
dump_tx_ring(struct net_device *dev)
|
{
|
if (vortex_debug > 0) {
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
|
if (vp->full_bus_master_tx) {
|
int i;
|
int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
|
|
pr_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);
|
pr_err(" Transmit list %8.8x vs. %p.\n",
|
ioread32(ioaddr + DownListPtr),
|
&vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
|
issue_and_wait(dev, DownStall);
|
for (i = 0; i < TX_RING_SIZE; i++) {
|
unsigned int length;
|
|
#if DO_ZEROCOPY
|
length = le32_to_cpu(vp->tx_ring[i].frag[0].length);
|
#else
|
length = le32_to_cpu(vp->tx_ring[i].length);
|
#endif
|
pr_err(" %d: @%p length %8.8x status %8.8x\n",
|
i, &vp->tx_ring[i], length,
|
le32_to_cpu(vp->tx_ring[i].status));
|
}
|
if (!stalled)
|
iowrite16(DownUnstall, ioaddr + EL3_CMD);
|
}
|
}
|
}
|
|
static struct net_device_stats *vortex_get_stats(struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
unsigned long flags;
|
|
if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
|
spin_lock_irqsave (&vp->lock, flags);
|
update_stats(ioaddr, dev);
|
spin_unlock_irqrestore (&vp->lock, flags);
|
}
|
return &dev->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(void __iomem *ioaddr, struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
|
/* Unlike the 3c5x9 we need not turn off stats updates while reading. */
|
/* Switch to the stats window, and read everything. */
|
dev->stats.tx_carrier_errors += window_read8(vp, 6, 0);
|
dev->stats.tx_heartbeat_errors += window_read8(vp, 6, 1);
|
dev->stats.tx_window_errors += window_read8(vp, 6, 4);
|
dev->stats.rx_fifo_errors += window_read8(vp, 6, 5);
|
dev->stats.tx_packets += window_read8(vp, 6, 6);
|
dev->stats.tx_packets += (window_read8(vp, 6, 9) &
|
0x30) << 4;
|
/* Rx packets */ window_read8(vp, 6, 7); /* Must read to clear */
|
/* 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. */
|
dev->stats.rx_bytes += window_read16(vp, 6, 10);
|
dev->stats.tx_bytes += window_read16(vp, 6, 12);
|
/* Extra stats for get_ethtool_stats() */
|
vp->xstats.tx_multiple_collisions += window_read8(vp, 6, 2);
|
vp->xstats.tx_single_collisions += window_read8(vp, 6, 3);
|
vp->xstats.tx_deferred += window_read8(vp, 6, 8);
|
vp->xstats.rx_bad_ssd += window_read8(vp, 4, 12);
|
|
dev->stats.collisions = vp->xstats.tx_multiple_collisions
|
+ vp->xstats.tx_single_collisions
|
+ vp->xstats.tx_max_collisions;
|
|
{
|
u8 up = window_read8(vp, 4, 13);
|
dev->stats.rx_bytes += (up & 0x0f) << 16;
|
dev->stats.tx_bytes += (up & 0xf0) << 12;
|
}
|
}
|
|
static int vortex_nway_reset(struct net_device *dev)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
|
return mii_nway_restart(&vp->mii);
|
}
|
|
static int vortex_get_link_ksettings(struct net_device *dev,
|
struct ethtool_link_ksettings *cmd)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
|
mii_ethtool_get_link_ksettings(&vp->mii, cmd);
|
|
return 0;
|
}
|
|
static int vortex_set_link_ksettings(struct net_device *dev,
|
const struct ethtool_link_ksettings *cmd)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
|
return mii_ethtool_set_link_ksettings(&vp->mii, cmd);
|
}
|
|
static u32 vortex_get_msglevel(struct net_device *dev)
|
{
|
return vortex_debug;
|
}
|
|
static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
|
{
|
vortex_debug = dbg;
|
}
|
|
static int vortex_get_sset_count(struct net_device *dev, int sset)
|
{
|
switch (sset) {
|
case ETH_SS_STATS:
|
return VORTEX_NUM_STATS;
|
default:
|
return -EOPNOTSUPP;
|
}
|
}
|
|
static void vortex_get_ethtool_stats(struct net_device *dev,
|
struct ethtool_stats *stats, u64 *data)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
unsigned long flags;
|
|
spin_lock_irqsave(&vp->lock, flags);
|
update_stats(ioaddr, dev);
|
spin_unlock_irqrestore(&vp->lock, flags);
|
|
data[0] = vp->xstats.tx_deferred;
|
data[1] = vp->xstats.tx_max_collisions;
|
data[2] = vp->xstats.tx_multiple_collisions;
|
data[3] = vp->xstats.tx_single_collisions;
|
data[4] = vp->xstats.rx_bad_ssd;
|
}
|
|
|
static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
|
{
|
switch (stringset) {
|
case ETH_SS_STATS:
|
memcpy(data, ðtool_stats_keys, sizeof(ethtool_stats_keys));
|
break;
|
default:
|
WARN_ON(1);
|
break;
|
}
|
}
|
|
static void vortex_get_drvinfo(struct net_device *dev,
|
struct ethtool_drvinfo *info)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
|
strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
|
if (VORTEX_PCI(vp)) {
|
strlcpy(info->bus_info, pci_name(VORTEX_PCI(vp)),
|
sizeof(info->bus_info));
|
} else {
|
if (VORTEX_EISA(vp))
|
strlcpy(info->bus_info, dev_name(vp->gendev),
|
sizeof(info->bus_info));
|
else
|
snprintf(info->bus_info, sizeof(info->bus_info),
|
"EISA 0x%lx %d", dev->base_addr, dev->irq);
|
}
|
}
|
|
static void vortex_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
|
if (!VORTEX_PCI(vp))
|
return;
|
|
wol->supported = WAKE_MAGIC;
|
|
wol->wolopts = 0;
|
if (vp->enable_wol)
|
wol->wolopts |= WAKE_MAGIC;
|
}
|
|
static int vortex_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
|
if (!VORTEX_PCI(vp))
|
return -EOPNOTSUPP;
|
|
if (wol->wolopts & ~WAKE_MAGIC)
|
return -EINVAL;
|
|
if (wol->wolopts & WAKE_MAGIC)
|
vp->enable_wol = 1;
|
else
|
vp->enable_wol = 0;
|
acpi_set_WOL(dev);
|
|
return 0;
|
}
|
|
static const struct ethtool_ops vortex_ethtool_ops = {
|
.get_drvinfo = vortex_get_drvinfo,
|
.get_strings = vortex_get_strings,
|
.get_msglevel = vortex_get_msglevel,
|
.set_msglevel = vortex_set_msglevel,
|
.get_ethtool_stats = vortex_get_ethtool_stats,
|
.get_sset_count = vortex_get_sset_count,
|
.get_link = ethtool_op_get_link,
|
.nway_reset = vortex_nway_reset,
|
.get_wol = vortex_get_wol,
|
.set_wol = vortex_set_wol,
|
.get_ts_info = ethtool_op_get_ts_info,
|
.get_link_ksettings = vortex_get_link_ksettings,
|
.set_link_ksettings = vortex_set_link_ksettings,
|
};
|
|
#ifdef CONFIG_PCI
|
/*
|
* Must power the device up to do MDIO operations
|
*/
|
static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
{
|
int err;
|
struct vortex_private *vp = netdev_priv(dev);
|
pci_power_t state = 0;
|
|
if(VORTEX_PCI(vp))
|
state = VORTEX_PCI(vp)->current_state;
|
|
/* The kernel core really should have pci_get_power_state() */
|
|
if(state != 0)
|
pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
|
err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
|
if(state != 0)
|
pci_set_power_state(VORTEX_PCI(vp), state);
|
|
return err;
|
}
|
#endif
|
|
|
/* 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)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
int new_mode;
|
|
if (dev->flags & IFF_PROMISC) {
|
if (vortex_debug > 3)
|
pr_notice("%s: Setting promiscuous mode.\n", dev->name);
|
new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
|
} else if (!netdev_mc_empty(dev) || dev->flags & IFF_ALLMULTI) {
|
new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
|
} else
|
new_mode = SetRxFilter | RxStation | RxBroadcast;
|
|
iowrite16(new_mode, ioaddr + EL3_CMD);
|
}
|
|
#if IS_ENABLED(CONFIG_VLAN_8021Q)
|
/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
|
Note that this must be done after each RxReset due to some backwards
|
compatibility logic in the Cyclone and Tornado ASICs */
|
|
/* The Ethernet Type used for 802.1q tagged frames */
|
#define VLAN_ETHER_TYPE 0x8100
|
|
static void set_8021q_mode(struct net_device *dev, int enable)
|
{
|
struct vortex_private *vp = netdev_priv(dev);
|
int mac_ctrl;
|
|
if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
|
/* cyclone and tornado chipsets can recognize 802.1q
|
* tagged frames and treat them correctly */
|
|
int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
|
if (enable)
|
max_pkt_size += 4; /* 802.1Q VLAN tag */
|
|
window_write16(vp, max_pkt_size, 3, Wn3_MaxPktSize);
|
|
/* set VlanEtherType to let the hardware checksumming
|
treat tagged frames correctly */
|
window_write16(vp, VLAN_ETHER_TYPE, 7, Wn7_VlanEtherType);
|
} else {
|
/* on older cards we have to enable large frames */
|
|
vp->large_frames = dev->mtu > 1500 || enable;
|
|
mac_ctrl = window_read16(vp, 3, Wn3_MAC_Ctrl);
|
if (vp->large_frames)
|
mac_ctrl |= 0x40;
|
else
|
mac_ctrl &= ~0x40;
|
window_write16(vp, mac_ctrl, 3, Wn3_MAC_Ctrl);
|
}
|
}
|
#else
|
|
static void set_8021q_mode(struct net_device *dev, int enable)
|
{
|
}
|
|
|
#endif
|
|
/* 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. */
|
static void mdio_delay(struct vortex_private *vp)
|
{
|
window_read32(vp, 4, Wn4_PhysicalMgmt);
|
}
|
|
#define MDIO_SHIFT_CLK 0x01
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#define MDIO_DIR_WRITE 0x04
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#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
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#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
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#define MDIO_DATA_READ 0x02
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#define MDIO_ENB_IN 0x00
|
|
/* Generate the preamble required for initial synchronization and
|
a few older transceivers. */
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static void mdio_sync(struct vortex_private *vp, int bits)
|
{
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/* Establish sync by sending at least 32 logic ones. */
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while (-- bits >= 0) {
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window_write16(vp, MDIO_DATA_WRITE1, 4, Wn4_PhysicalMgmt);
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mdio_delay(vp);
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window_write16(vp, MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK,
|
4, Wn4_PhysicalMgmt);
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mdio_delay(vp);
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}
|
}
|
|
static int mdio_read(struct net_device *dev, int phy_id, int location)
|
{
|
int i;
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struct vortex_private *vp = netdev_priv(dev);
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int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
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unsigned int retval = 0;
|
|
spin_lock_bh(&vp->mii_lock);
|
|
if (mii_preamble_required)
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mdio_sync(vp, 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;
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window_write16(vp, dataval, 4, Wn4_PhysicalMgmt);
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mdio_delay(vp);
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window_write16(vp, dataval | MDIO_SHIFT_CLK,
|
4, Wn4_PhysicalMgmt);
|
mdio_delay(vp);
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}
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/* Read the two transition, 16 data, and wire-idle bits. */
|
for (i = 19; i > 0; i--) {
|
window_write16(vp, MDIO_ENB_IN, 4, Wn4_PhysicalMgmt);
|
mdio_delay(vp);
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retval = (retval << 1) |
|
((window_read16(vp, 4, Wn4_PhysicalMgmt) &
|
MDIO_DATA_READ) ? 1 : 0);
|
window_write16(vp, MDIO_ENB_IN | MDIO_SHIFT_CLK,
|
4, Wn4_PhysicalMgmt);
|
mdio_delay(vp);
|
}
|
|
spin_unlock_bh(&vp->mii_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 = netdev_priv(dev);
|
int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
|
int i;
|
|
spin_lock_bh(&vp->mii_lock);
|
|
if (mii_preamble_required)
|
mdio_sync(vp, 32);
|
|
/* Shift the command bits out. */
|
for (i = 31; i >= 0; i--) {
|
int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
|
window_write16(vp, dataval, 4, Wn4_PhysicalMgmt);
|
mdio_delay(vp);
|
window_write16(vp, dataval | MDIO_SHIFT_CLK,
|
4, Wn4_PhysicalMgmt);
|
mdio_delay(vp);
|
}
|
/* Leave the interface idle. */
|
for (i = 1; i >= 0; i--) {
|
window_write16(vp, MDIO_ENB_IN, 4, Wn4_PhysicalMgmt);
|
mdio_delay(vp);
|
window_write16(vp, MDIO_ENB_IN | MDIO_SHIFT_CLK,
|
4, Wn4_PhysicalMgmt);
|
mdio_delay(vp);
|
}
|
|
spin_unlock_bh(&vp->mii_lock);
|
}
|
|
/* 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 = netdev_priv(dev);
|
void __iomem *ioaddr = vp->ioaddr;
|
|
device_set_wakeup_enable(vp->gendev, vp->enable_wol);
|
|
if (vp->enable_wol) {
|
/* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
|
window_write16(vp, 2, 7, 0x0c);
|
/* The RxFilter must accept the WOL frames. */
|
iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
|
iowrite16(RxEnable, ioaddr + EL3_CMD);
|
|
if (pci_enable_wake(VORTEX_PCI(vp), PCI_D3hot, 1)) {
|
pr_info("%s: WOL not supported.\n", pci_name(VORTEX_PCI(vp)));
|
|
vp->enable_wol = 0;
|
return;
|
}
|
|
if (VORTEX_PCI(vp)->current_state < PCI_D3hot)
|
return;
|
|
/* Change the power state to D3; RxEnable doesn't take effect. */
|
pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
|
}
|
}
|
|
|
static void vortex_remove_one(struct pci_dev *pdev)
|
{
|
struct net_device *dev = pci_get_drvdata(pdev);
|
struct vortex_private *vp;
|
|
if (!dev) {
|
pr_err("vortex_remove_one called for Compaq device!\n");
|
BUG();
|
}
|
|
vp = netdev_priv(dev);
|
|
if (vp->cb_fn_base)
|
pci_iounmap(pdev, vp->cb_fn_base);
|
|
unregister_netdev(dev);
|
|
pci_set_power_state(pdev, PCI_D0); /* Go active */
|
if (vp->pm_state_valid)
|
pci_restore_state(pdev);
|
pci_disable_device(pdev);
|
|
/* Should really use issue_and_wait() here */
|
iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
|
vp->ioaddr + EL3_CMD);
|
|
pci_iounmap(pdev, vp->ioaddr);
|
|
dma_free_coherent(&pdev->dev,
|
sizeof(struct boom_rx_desc) * RX_RING_SIZE +
|
sizeof(struct boom_tx_desc) * TX_RING_SIZE,
|
vp->rx_ring, vp->rx_ring_dma);
|
|
pci_release_regions(pdev);
|
|
free_netdev(dev);
|
}
|
|
|
static struct pci_driver vortex_driver = {
|
.name = "3c59x",
|
.probe = vortex_init_one,
|
.remove = vortex_remove_one,
|
.id_table = vortex_pci_tbl,
|
.driver.pm = VORTEX_PM_OPS,
|
};
|
|
|
static int vortex_have_pci;
|
static int vortex_have_eisa;
|
|
|
static int __init vortex_init(void)
|
{
|
int pci_rc, eisa_rc;
|
|
pci_rc = pci_register_driver(&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)
|
{
|
void __iomem *ioaddr;
|
|
#ifdef CONFIG_EISA
|
/* Take care of the EISA devices */
|
eisa_driver_unregister(&vortex_eisa_driver);
|
#endif
|
|
if (compaq_net_device) {
|
ioaddr = ioport_map(compaq_net_device->base_addr,
|
VORTEX_TOTAL_SIZE);
|
|
unregister_netdev(compaq_net_device);
|
iowrite16(TotalReset, ioaddr + EL3_CMD);
|
release_region(compaq_net_device->base_addr,
|
VORTEX_TOTAL_SIZE);
|
|
free_netdev(compaq_net_device);
|
}
|
}
|
|
|
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);
|
