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marcus.erl |
/*
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Written 1997-1998 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 ISA EtherLink XL "Corkscrew" 3c515 ethercard.
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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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2000/2/2- Added support for kernel-level ISAPnP
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by Stephen Frost <sfrost@snowman.net> and Alessandro Zummo
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Cleaned up for 2.3.x/softnet by Jeff Garzik and Alan Cox.
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2001/11/17 - Added ethtool support (jgarzik)
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2002/10/28 - Locking updates for 2.5 (alan@redhat.com)
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*/
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#define DRV_NAME "3c515"
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#define DRV_VERSION "0.99t-ac"
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#define DRV_RELDATE "28-Oct-2002"
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static char *version =
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DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " becker@scyld.com and others\n";
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#define CORKSCREW 1
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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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static int rx_copybreak = 200;
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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 = 20;
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/* Enable the automatic media selection code -- usually set. */
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#define AUTOMEDIA 1
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/* Allow the use of fragment bus master transfers instead of only
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programmed-I/O for Vortex cards. Full-bus-master transfers are always
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enabled by default on Boomerang cards. If VORTEX_BUS_MASTER is defined,
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the feature may be turned on using 'options'. */
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#define VORTEX_BUS_MASTER
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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 16
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#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
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#include <linux/module.h>
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#include <linux/isapnp.h>
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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#include <linux/string.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/slab.h>
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#include <linux/skbuff.h>
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#include <linux/etherdevice.h>
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#include <linux/interrupt.h>
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#include <linux/timer.h>
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#include <linux/ethtool.h>
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#include <linux/bitops.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#define NEW_MULTICAST
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#include <linux/delay.h>
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#define MAX_UNITS 8
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MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
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MODULE_DESCRIPTION("3Com 3c515 Corkscrew driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_VERSION);
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/* "Knobs" for adjusting internal parameters. */
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/* Put out somewhat more debugging messages. (0 - no msg, 1 minimal msgs). */
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#define DRIVER_DEBUG 1
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/* Some values here only for performance evaluation and path-coverage
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debugging. */
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static int rx_nocopy, rx_copy, queued_packet;
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/* Number of times to check to see if the Tx FIFO has space, used in some
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limited cases. */
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#define WAIT_TX_AVAIL 200
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/* Operational parameter that usually are not changed. */
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#define TX_TIMEOUT 40 /* Time in jiffies before concluding Tx hung */
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/* The size here is somewhat misleading: the Corkscrew also uses the ISA
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aliased registers at <base>+0x400.
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*/
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#define CORKSCREW_TOTAL_SIZE 0x20
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#ifdef DRIVER_DEBUG
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static int corkscrew_debug = DRIVER_DEBUG;
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#else
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static int corkscrew_debug = 1;
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#endif
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#define CORKSCREW_ID 10
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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 3c515 ISA Fast EtherLink XL,
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3Com's ISA bus adapter for Fast Ethernet. Due to the unique I/O port layout,
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it's not practical to integrate this driver with the other EtherLink drivers.
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II. Board-specific settings
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The Corkscrew has an EEPROM for configuration, but no special settings are
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needed for Linux.
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III. Driver operation
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The 3c515 series use an interface that's very similar to the 3c900 "Boomerang"
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PCI cards, with the bus master interface extensively modified to work with
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the ISA bus.
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The card is capable of full-bus-master transfers 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.
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This driver uses a "RX_COPYBREAK" scheme rather than a fixed intermediate
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receive buffer. This scheme allocates full-sized skbuffs as receive
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buffers. The value RX_COPYBREAK is used as the copying breakpoint: it is
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chosen to trade-off the memory wasted by passing the full-sized skbuff to
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the queue layer for all frames vs. the copying cost of copying a frame to a
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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 netif
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layer. 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 Terry Murphy of 3Com for providing documentation and a development
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board.
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The names "Vortex", "Boomerang" and "Corkscrew" are the internal 3Com
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project names. I use these names to eliminate confusion -- 3Com product
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numbers and names are very similar and often confused.
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The new chips support both ethernet (1.5K) and FDDI (4.5K) frame sizes!
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This driver only supports ethernet frames because of the recent MTU limit
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of 1.5K, but the changes to support 4.5K are minimal.
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*/
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/* Operational definitions.
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These are not used by other compilation units and thus are not
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exported in a ".h" file.
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First the windows. There are eight register windows, with the command
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and status registers available in each.
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*/
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#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
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#define EL3_CMD 0x0e
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#define EL3_STATUS 0x0e
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/* The top five bits written to EL3_CMD are a command, the lower
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11 bits are the parameter, if applicable.
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Note that 11 parameters bits was fine for ethernet, but the new chips
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can handle FDDI length frames (~4500 octets) and now parameters count
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32-bit 'Dwords' rather than octets. */
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enum corkscrew_cmd {
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TotalReset = 0 << 11, SelectWindow = 1 << 11, StartCoax = 2 << 11,
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RxDisable = 3 << 11, RxEnable = 4 << 11, RxReset = 5 << 11,
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UpStall = 6 << 11, UpUnstall = (6 << 11) + 1, DownStall = (6 << 11) + 2,
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DownUnstall = (6 << 11) + 3, RxDiscard = 8 << 11, TxEnable = 9 << 11,
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TxDisable = 10 << 11, TxReset = 11 << 11, FakeIntr = 12 << 11,
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AckIntr = 13 << 11, SetIntrEnb = 14 << 11, SetStatusEnb = 15 << 11,
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SetRxFilter = 16 << 11, SetRxThreshold = 17 << 11,
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SetTxThreshold = 18 << 11, SetTxStart = 19 << 11, StartDMAUp = 20 << 11,
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StartDMADown = (20 << 11) + 1, StatsEnable = 21 << 11,
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StatsDisable = 22 << 11, StopCoax = 23 << 11,
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};
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/* The SetRxFilter command accepts the following classes: */
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enum RxFilter {
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RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8
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};
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/* Bits in the general status register. */
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enum corkscrew_status {
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IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
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TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
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IntReq = 0x0040, StatsFull = 0x0080,
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DMADone = 1 << 8, DownComplete = 1 << 9, UpComplete = 1 << 10,
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DMAInProgress = 1 << 11, /* DMA controller is still busy. */
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CmdInProgress = 1 << 12, /* EL3_CMD is still busy. */
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};
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/* Register window 1 offsets, the window used in normal operation.
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On the Corkscrew this window is always mapped at offsets 0x10-0x1f. */
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enum Window1 {
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TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
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RxStatus = 0x18, Timer = 0x1A, TxStatus = 0x1B,
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TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
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};
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enum Window0 {
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Wn0IRQ = 0x08,
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#if defined(CORKSCREW)
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Wn0EepromCmd = 0x200A, /* Corkscrew EEPROM command register. */
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Wn0EepromData = 0x200C, /* Corkscrew EEPROM results register. */
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#else
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Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
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Wn0EepromData = 12, /* Window 0: EEPROM results register. */
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#endif
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};
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enum Win0_EEPROM_bits {
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EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
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EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
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EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
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};
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/* EEPROM locations. */
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enum eeprom_offset {
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PhysAddr01 = 0, PhysAddr23 = 1, PhysAddr45 = 2, ModelID = 3,
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EtherLink3ID = 7,
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};
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enum Window3 { /* Window 3: MAC/config bits. */
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Wn3_Config = 0, Wn3_MAC_Ctrl = 6, Wn3_Options = 8,
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};
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enum wn3_config {
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Ram_size = 7,
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Ram_width = 8,
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Ram_speed = 0x30,
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Rom_size = 0xc0,
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Ram_split_shift = 16,
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Ram_split = 3 << Ram_split_shift,
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Xcvr_shift = 20,
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Xcvr = 7 << Xcvr_shift,
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Autoselect = 0x1000000,
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};
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enum Window4 {
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Wn4_NetDiag = 6, Wn4_Media = 10, /* Window 4: Xcvr/media bits. */
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};
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enum Win4_Media_bits {
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Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */
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Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */
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Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */
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Media_LnkBeat = 0x0800,
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};
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enum Window7 { /* Window 7: Bus Master control. */
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Wn7_MasterAddr = 0, Wn7_MasterLen = 6, Wn7_MasterStatus = 12,
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};
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/* Boomerang-style bus master control registers. Note ISA aliases! */
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enum MasterCtrl {
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PktStatus = 0x400, DownListPtr = 0x404, FragAddr = 0x408, FragLen =
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0x40c,
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TxFreeThreshold = 0x40f, UpPktStatus = 0x410, UpListPtr = 0x418,
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};
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/* The Rx and Tx descriptor lists.
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Caution Alpha hackers: these types are 32 bits! Note also the 8 byte
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alignment contraint on tx_ring[] and rx_ring[]. */
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struct boom_rx_desc {
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u32 next;
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s32 status;
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u32 addr;
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s32 length;
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};
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/* Values for the Rx status entry. */
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enum rx_desc_status {
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RxDComplete = 0x00008000, RxDError = 0x4000,
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/* See boomerang_rx() for actual error bits */
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};
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struct boom_tx_desc {
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u32 next;
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s32 status;
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u32 addr;
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s32 length;
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};
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struct corkscrew_private {
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const char *product_name;
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struct list_head list;
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struct net_device *our_dev;
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/* The Rx and Tx rings are here to keep them quad-word-aligned. */
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struct boom_rx_desc rx_ring[RX_RING_SIZE];
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struct boom_tx_desc tx_ring[TX_RING_SIZE];
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/* The addresses of transmit- and receive-in-place skbuffs. */
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struct sk_buff *rx_skbuff[RX_RING_SIZE];
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struct sk_buff *tx_skbuff[TX_RING_SIZE];
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unsigned int cur_rx, cur_tx; /* The next free ring entry */
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unsigned int dirty_rx, dirty_tx;/* The ring entries to be free()ed. */
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struct net_device_stats stats;
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struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
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struct timer_list timer; /* Media selection timer. */
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int capabilities ; /* Adapter capabilities word. */
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int options; /* User-settable misc. driver options. */
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int last_rx_packets; /* For media autoselection. */
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unsigned int available_media:8, /* From Wn3_Options */
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media_override:3, /* Passed-in media type. */
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| 321 |
|
|
default_media:3, /* Read from the EEPROM. */
|
| 322 |
|
|
full_duplex:1, autoselect:1, bus_master:1, /* Vortex can only do a fragment bus-m. */
|
| 323 |
|
|
full_bus_master_tx:1, full_bus_master_rx:1, /* Boomerang */
|
| 324 |
|
|
tx_full:1;
|
| 325 |
|
|
spinlock_t lock;
|
| 326 |
|
|
struct device *dev;
|
| 327 |
|
|
};
|
| 328 |
|
|
|
| 329 |
|
|
/* The action to take with a media selection timer tick.
|
| 330 |
|
|
Note that we deviate from the 3Com order by checking 10base2 before AUI.
|
| 331 |
|
|
*/
|
| 332 |
|
|
enum xcvr_types {
|
| 333 |
|
|
XCVR_10baseT = 0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
|
| 334 |
|
|
XCVR_100baseFx, XCVR_MII = 6, XCVR_Default = 8,
|
| 335 |
|
|
};
|
| 336 |
|
|
|
| 337 |
|
|
static struct media_table {
|
| 338 |
|
|
char *name;
|
| 339 |
|
|
unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
|
| 340 |
|
|
mask:8, /* The transceiver-present bit in Wn3_Config. */
|
| 341 |
|
|
next:8; /* The media type to try next. */
|
| 342 |
|
|
short wait; /* Time before we check media status. */
|
| 343 |
|
|
} media_tbl[] = {
|
| 344 |
|
|
{ "10baseT", Media_10TP, 0x08, XCVR_10base2, (14 * HZ) / 10 },
|
| 345 |
|
|
{ "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1 * HZ) / 10},
|
| 346 |
|
|
{ "undefined", 0, 0x80, XCVR_10baseT, 10000},
|
| 347 |
|
|
{ "10base2", 0, 0x10, XCVR_AUI, (1 * HZ) / 10},
|
| 348 |
|
|
{ "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14 * HZ) / 10},
|
| 349 |
|
|
{ "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14 * HZ) / 10},
|
| 350 |
|
|
{ "MII", 0, 0x40, XCVR_10baseT, 3 * HZ},
|
| 351 |
|
|
{ "undefined", 0, 0x01, XCVR_10baseT, 10000},
|
| 352 |
|
|
{ "Default", 0, 0xFF, XCVR_10baseT, 10000},
|
| 353 |
|
|
};
|
| 354 |
|
|
|
| 355 |
|
|
#ifdef __ISAPNP__
|
| 356 |
|
|
static struct isapnp_device_id corkscrew_isapnp_adapters[] = {
|
| 357 |
|
|
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
|
| 358 |
|
|
ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5051),
|
| 359 |
|
|
(long) "3Com Fast EtherLink ISA" },
|
| 360 |
|
|
{ } /* terminate list */
|
| 361 |
|
|
};
|
| 362 |
|
|
|
| 363 |
|
|
MODULE_DEVICE_TABLE(isapnp, corkscrew_isapnp_adapters);
|
| 364 |
|
|
|
| 365 |
|
|
static int nopnp;
|
| 366 |
|
|
#endif /* __ISAPNP__ */
|
| 367 |
|
|
|
| 368 |
|
|
static struct net_device *corkscrew_scan(int unit);
|
| 369 |
|
|
static int corkscrew_setup(struct net_device *dev, int ioaddr,
|
| 370 |
|
|
struct pnp_dev *idev, int card_number);
|
| 371 |
|
|
static int corkscrew_open(struct net_device *dev);
|
| 372 |
|
|
static void corkscrew_timer(unsigned long arg);
|
| 373 |
|
|
static int corkscrew_start_xmit(struct sk_buff *skb,
|
| 374 |
|
|
struct net_device *dev);
|
| 375 |
|
|
static int corkscrew_rx(struct net_device *dev);
|
| 376 |
|
|
static void corkscrew_timeout(struct net_device *dev);
|
| 377 |
|
|
static int boomerang_rx(struct net_device *dev);
|
| 378 |
|
|
static irqreturn_t corkscrew_interrupt(int irq, void *dev_id);
|
| 379 |
|
|
static int corkscrew_close(struct net_device *dev);
|
| 380 |
|
|
static void update_stats(int addr, struct net_device *dev);
|
| 381 |
|
|
static struct net_device_stats *corkscrew_get_stats(struct net_device *dev);
|
| 382 |
|
|
static void set_rx_mode(struct net_device *dev);
|
| 383 |
|
|
static const struct ethtool_ops netdev_ethtool_ops;
|
| 384 |
|
|
|
| 385 |
|
|
|
| 386 |
|
|
/*
|
| 387 |
|
|
Unfortunately maximizing the shared code between the integrated and
|
| 388 |
|
|
module version of the driver results in a complicated set of initialization
|
| 389 |
|
|
procedures.
|
| 390 |
|
|
init_module() -- modules / tc59x_init() -- built-in
|
| 391 |
|
|
The wrappers for corkscrew_scan()
|
| 392 |
|
|
corkscrew_scan() The common routine that scans for PCI and EISA cards
|
| 393 |
|
|
corkscrew_found_device() Allocate a device structure when we find a card.
|
| 394 |
|
|
Different versions exist for modules and built-in.
|
| 395 |
|
|
corkscrew_probe1() Fill in the device structure -- this is separated
|
| 396 |
|
|
so that the modules code can put it in dev->init.
|
| 397 |
|
|
*/
|
| 398 |
|
|
/* This driver uses 'options' to pass the media type, full-duplex flag, etc. */
|
| 399 |
|
|
/* Note: this is the only limit on the number of cards supported!! */
|
| 400 |
|
|
static int options[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1, };
|
| 401 |
|
|
|
| 402 |
|
|
#ifdef MODULE
|
| 403 |
|
|
static int debug = -1;
|
| 404 |
|
|
|
| 405 |
|
|
module_param(debug, int, 0);
|
| 406 |
|
|
module_param_array(options, int, NULL, 0);
|
| 407 |
|
|
module_param(rx_copybreak, int, 0);
|
| 408 |
|
|
module_param(max_interrupt_work, int, 0);
|
| 409 |
|
|
MODULE_PARM_DESC(debug, "3c515 debug level (0-6)");
|
| 410 |
|
|
MODULE_PARM_DESC(options, "3c515: Bits 0-2: media type, bit 3: full duplex, bit 4: bus mastering");
|
| 411 |
|
|
MODULE_PARM_DESC(rx_copybreak, "3c515 copy breakpoint for copy-only-tiny-frames");
|
| 412 |
|
|
MODULE_PARM_DESC(max_interrupt_work, "3c515 maximum events handled per interrupt");
|
| 413 |
|
|
|
| 414 |
|
|
/* A list of all installed Vortex devices, for removing the driver module. */
|
| 415 |
|
|
/* we will need locking (and refcounting) if we ever use it for more */
|
| 416 |
|
|
static LIST_HEAD(root_corkscrew_dev);
|
| 417 |
|
|
|
| 418 |
|
|
int init_module(void)
|
| 419 |
|
|
{
|
| 420 |
|
|
int found = 0;
|
| 421 |
|
|
if (debug >= 0)
|
| 422 |
|
|
corkscrew_debug = debug;
|
| 423 |
|
|
if (corkscrew_debug)
|
| 424 |
|
|
printk(version);
|
| 425 |
|
|
while (corkscrew_scan(-1))
|
| 426 |
|
|
found++;
|
| 427 |
|
|
return found ? 0 : -ENODEV;
|
| 428 |
|
|
}
|
| 429 |
|
|
|
| 430 |
|
|
#else
|
| 431 |
|
|
struct net_device *tc515_probe(int unit)
|
| 432 |
|
|
{
|
| 433 |
|
|
struct net_device *dev = corkscrew_scan(unit);
|
| 434 |
|
|
static int printed;
|
| 435 |
|
|
|
| 436 |
|
|
if (!dev)
|
| 437 |
|
|
return ERR_PTR(-ENODEV);
|
| 438 |
|
|
|
| 439 |
|
|
if (corkscrew_debug > 0 && !printed) {
|
| 440 |
|
|
printed = 1;
|
| 441 |
|
|
printk(version);
|
| 442 |
|
|
}
|
| 443 |
|
|
|
| 444 |
|
|
return dev;
|
| 445 |
|
|
}
|
| 446 |
|
|
#endif /* not MODULE */
|
| 447 |
|
|
|
| 448 |
|
|
static int check_device(unsigned ioaddr)
|
| 449 |
|
|
{
|
| 450 |
|
|
int timer;
|
| 451 |
|
|
|
| 452 |
|
|
if (!request_region(ioaddr, CORKSCREW_TOTAL_SIZE, "3c515"))
|
| 453 |
|
|
return 0;
|
| 454 |
|
|
/* Check the resource configuration for a matching ioaddr. */
|
| 455 |
|
|
if ((inw(ioaddr + 0x2002) & 0x1f0) != (ioaddr & 0x1f0)) {
|
| 456 |
|
|
release_region(ioaddr, CORKSCREW_TOTAL_SIZE);
|
| 457 |
|
|
return 0;
|
| 458 |
|
|
}
|
| 459 |
|
|
/* Verify by reading the device ID from the EEPROM. */
|
| 460 |
|
|
outw(EEPROM_Read + 7, ioaddr + Wn0EepromCmd);
|
| 461 |
|
|
/* Pause for at least 162 us. for the read to take place. */
|
| 462 |
|
|
for (timer = 4; timer >= 0; timer--) {
|
| 463 |
|
|
udelay(162);
|
| 464 |
|
|
if ((inw(ioaddr + Wn0EepromCmd) & 0x0200) == 0)
|
| 465 |
|
|
break;
|
| 466 |
|
|
}
|
| 467 |
|
|
if (inw(ioaddr + Wn0EepromData) != 0x6d50) {
|
| 468 |
|
|
release_region(ioaddr, CORKSCREW_TOTAL_SIZE);
|
| 469 |
|
|
return 0;
|
| 470 |
|
|
}
|
| 471 |
|
|
return 1;
|
| 472 |
|
|
}
|
| 473 |
|
|
|
| 474 |
|
|
static void cleanup_card(struct net_device *dev)
|
| 475 |
|
|
{
|
| 476 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 477 |
|
|
list_del_init(&vp->list);
|
| 478 |
|
|
if (dev->dma)
|
| 479 |
|
|
free_dma(dev->dma);
|
| 480 |
|
|
outw(TotalReset, dev->base_addr + EL3_CMD);
|
| 481 |
|
|
release_region(dev->base_addr, CORKSCREW_TOTAL_SIZE);
|
| 482 |
|
|
if (vp->dev)
|
| 483 |
|
|
pnp_device_detach(to_pnp_dev(vp->dev));
|
| 484 |
|
|
}
|
| 485 |
|
|
|
| 486 |
|
|
static struct net_device *corkscrew_scan(int unit)
|
| 487 |
|
|
{
|
| 488 |
|
|
struct net_device *dev;
|
| 489 |
|
|
static int cards_found = 0;
|
| 490 |
|
|
static int ioaddr;
|
| 491 |
|
|
int err;
|
| 492 |
|
|
#ifdef __ISAPNP__
|
| 493 |
|
|
short i;
|
| 494 |
|
|
static int pnp_cards;
|
| 495 |
|
|
#endif
|
| 496 |
|
|
|
| 497 |
|
|
dev = alloc_etherdev(sizeof(struct corkscrew_private));
|
| 498 |
|
|
if (!dev)
|
| 499 |
|
|
return ERR_PTR(-ENOMEM);
|
| 500 |
|
|
|
| 501 |
|
|
if (unit >= 0) {
|
| 502 |
|
|
sprintf(dev->name, "eth%d", unit);
|
| 503 |
|
|
netdev_boot_setup_check(dev);
|
| 504 |
|
|
}
|
| 505 |
|
|
|
| 506 |
|
|
#ifdef __ISAPNP__
|
| 507 |
|
|
if(nopnp == 1)
|
| 508 |
|
|
goto no_pnp;
|
| 509 |
|
|
for(i=0; corkscrew_isapnp_adapters[i].vendor != 0; i++) {
|
| 510 |
|
|
struct pnp_dev *idev = NULL;
|
| 511 |
|
|
int irq;
|
| 512 |
|
|
while((idev = pnp_find_dev(NULL,
|
| 513 |
|
|
corkscrew_isapnp_adapters[i].vendor,
|
| 514 |
|
|
corkscrew_isapnp_adapters[i].function,
|
| 515 |
|
|
idev))) {
|
| 516 |
|
|
|
| 517 |
|
|
if (pnp_device_attach(idev) < 0)
|
| 518 |
|
|
continue;
|
| 519 |
|
|
if (pnp_activate_dev(idev) < 0) {
|
| 520 |
|
|
printk("pnp activate failed (out of resources?)\n");
|
| 521 |
|
|
pnp_device_detach(idev);
|
| 522 |
|
|
continue;
|
| 523 |
|
|
}
|
| 524 |
|
|
if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) {
|
| 525 |
|
|
pnp_device_detach(idev);
|
| 526 |
|
|
continue;
|
| 527 |
|
|
}
|
| 528 |
|
|
ioaddr = pnp_port_start(idev, 0);
|
| 529 |
|
|
irq = pnp_irq(idev, 0);
|
| 530 |
|
|
if (!check_device(ioaddr)) {
|
| 531 |
|
|
pnp_device_detach(idev);
|
| 532 |
|
|
continue;
|
| 533 |
|
|
}
|
| 534 |
|
|
if(corkscrew_debug)
|
| 535 |
|
|
printk ("ISAPNP reports %s at i/o 0x%x, irq %d\n",
|
| 536 |
|
|
(char*) corkscrew_isapnp_adapters[i].driver_data, ioaddr, irq);
|
| 537 |
|
|
printk(KERN_INFO "3c515 Resource configuration register %#4.4x, DCR %4.4x.\n",
|
| 538 |
|
|
inl(ioaddr + 0x2002), inw(ioaddr + 0x2000));
|
| 539 |
|
|
/* irq = inw(ioaddr + 0x2002) & 15; */ /* Use the irq from isapnp */
|
| 540 |
|
|
SET_NETDEV_DEV(dev, &idev->dev);
|
| 541 |
|
|
pnp_cards++;
|
| 542 |
|
|
err = corkscrew_setup(dev, ioaddr, idev, cards_found++);
|
| 543 |
|
|
if (!err)
|
| 544 |
|
|
return dev;
|
| 545 |
|
|
cleanup_card(dev);
|
| 546 |
|
|
}
|
| 547 |
|
|
}
|
| 548 |
|
|
no_pnp:
|
| 549 |
|
|
#endif /* __ISAPNP__ */
|
| 550 |
|
|
|
| 551 |
|
|
/* Check all locations on the ISA bus -- evil! */
|
| 552 |
|
|
for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x20) {
|
| 553 |
|
|
if (!check_device(ioaddr))
|
| 554 |
|
|
continue;
|
| 555 |
|
|
|
| 556 |
|
|
printk(KERN_INFO "3c515 Resource configuration register %#4.4x, DCR %4.4x.\n",
|
| 557 |
|
|
inl(ioaddr + 0x2002), inw(ioaddr + 0x2000));
|
| 558 |
|
|
err = corkscrew_setup(dev, ioaddr, NULL, cards_found++);
|
| 559 |
|
|
if (!err)
|
| 560 |
|
|
return dev;
|
| 561 |
|
|
cleanup_card(dev);
|
| 562 |
|
|
}
|
| 563 |
|
|
free_netdev(dev);
|
| 564 |
|
|
return NULL;
|
| 565 |
|
|
}
|
| 566 |
|
|
|
| 567 |
|
|
static int corkscrew_setup(struct net_device *dev, int ioaddr,
|
| 568 |
|
|
struct pnp_dev *idev, int card_number)
|
| 569 |
|
|
{
|
| 570 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 571 |
|
|
unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */
|
| 572 |
|
|
int i;
|
| 573 |
|
|
int irq;
|
| 574 |
|
|
DECLARE_MAC_BUF(mac);
|
| 575 |
|
|
|
| 576 |
|
|
if (idev) {
|
| 577 |
|
|
irq = pnp_irq(idev, 0);
|
| 578 |
|
|
vp->dev = &idev->dev;
|
| 579 |
|
|
} else {
|
| 580 |
|
|
irq = inw(ioaddr + 0x2002) & 15;
|
| 581 |
|
|
}
|
| 582 |
|
|
|
| 583 |
|
|
dev->base_addr = ioaddr;
|
| 584 |
|
|
dev->irq = irq;
|
| 585 |
|
|
dev->dma = inw(ioaddr + 0x2000) & 7;
|
| 586 |
|
|
vp->product_name = "3c515";
|
| 587 |
|
|
vp->options = dev->mem_start;
|
| 588 |
|
|
vp->our_dev = dev;
|
| 589 |
|
|
|
| 590 |
|
|
if (!vp->options) {
|
| 591 |
|
|
if (card_number >= MAX_UNITS)
|
| 592 |
|
|
vp->options = -1;
|
| 593 |
|
|
else
|
| 594 |
|
|
vp->options = options[card_number];
|
| 595 |
|
|
}
|
| 596 |
|
|
|
| 597 |
|
|
if (vp->options >= 0) {
|
| 598 |
|
|
vp->media_override = vp->options & 7;
|
| 599 |
|
|
if (vp->media_override == 2)
|
| 600 |
|
|
vp->media_override = 0;
|
| 601 |
|
|
vp->full_duplex = (vp->options & 8) ? 1 : 0;
|
| 602 |
|
|
vp->bus_master = (vp->options & 16) ? 1 : 0;
|
| 603 |
|
|
} else {
|
| 604 |
|
|
vp->media_override = 7;
|
| 605 |
|
|
vp->full_duplex = 0;
|
| 606 |
|
|
vp->bus_master = 0;
|
| 607 |
|
|
}
|
| 608 |
|
|
#ifdef MODULE
|
| 609 |
|
|
list_add(&vp->list, &root_corkscrew_dev);
|
| 610 |
|
|
#endif
|
| 611 |
|
|
|
| 612 |
|
|
printk(KERN_INFO "%s: 3Com %s at %#3x,", dev->name, vp->product_name, ioaddr);
|
| 613 |
|
|
|
| 614 |
|
|
spin_lock_init(&vp->lock);
|
| 615 |
|
|
|
| 616 |
|
|
/* Read the station address from the EEPROM. */
|
| 617 |
|
|
EL3WINDOW(0);
|
| 618 |
|
|
for (i = 0; i < 0x18; i++) {
|
| 619 |
|
|
__be16 *phys_addr = (__be16 *) dev->dev_addr;
|
| 620 |
|
|
int timer;
|
| 621 |
|
|
outw(EEPROM_Read + i, ioaddr + Wn0EepromCmd);
|
| 622 |
|
|
/* Pause for at least 162 us. for the read to take place. */
|
| 623 |
|
|
for (timer = 4; timer >= 0; timer--) {
|
| 624 |
|
|
udelay(162);
|
| 625 |
|
|
if ((inw(ioaddr + Wn0EepromCmd) & 0x0200) == 0)
|
| 626 |
|
|
break;
|
| 627 |
|
|
}
|
| 628 |
|
|
eeprom[i] = inw(ioaddr + Wn0EepromData);
|
| 629 |
|
|
checksum ^= eeprom[i];
|
| 630 |
|
|
if (i < 3)
|
| 631 |
|
|
phys_addr[i] = htons(eeprom[i]);
|
| 632 |
|
|
}
|
| 633 |
|
|
checksum = (checksum ^ (checksum >> 8)) & 0xff;
|
| 634 |
|
|
if (checksum != 0x00)
|
| 635 |
|
|
printk(" ***INVALID CHECKSUM %4.4x*** ", checksum);
|
| 636 |
|
|
printk(" %s", print_mac(mac, dev->dev_addr));
|
| 637 |
|
|
if (eeprom[16] == 0x11c7) { /* Corkscrew */
|
| 638 |
|
|
if (request_dma(dev->dma, "3c515")) {
|
| 639 |
|
|
printk(", DMA %d allocation failed", dev->dma);
|
| 640 |
|
|
dev->dma = 0;
|
| 641 |
|
|
} else
|
| 642 |
|
|
printk(", DMA %d", dev->dma);
|
| 643 |
|
|
}
|
| 644 |
|
|
printk(", IRQ %d\n", dev->irq);
|
| 645 |
|
|
/* Tell them about an invalid IRQ. */
|
| 646 |
|
|
if (corkscrew_debug && (dev->irq <= 0 || dev->irq > 15))
|
| 647 |
|
|
printk(KERN_WARNING " *** Warning: this IRQ is unlikely to work! ***\n");
|
| 648 |
|
|
|
| 649 |
|
|
{
|
| 650 |
|
|
char *ram_split[] = { "5:3", "3:1", "1:1", "3:5" };
|
| 651 |
|
|
__u32 config;
|
| 652 |
|
|
EL3WINDOW(3);
|
| 653 |
|
|
vp->available_media = inw(ioaddr + Wn3_Options);
|
| 654 |
|
|
config = inl(ioaddr + Wn3_Config);
|
| 655 |
|
|
if (corkscrew_debug > 1)
|
| 656 |
|
|
printk(KERN_INFO " Internal config register is %4.4x, transceivers %#x.\n",
|
| 657 |
|
|
config, inw(ioaddr + Wn3_Options));
|
| 658 |
|
|
printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
|
| 659 |
|
|
8 << config & Ram_size,
|
| 660 |
|
|
config & Ram_width ? "word" : "byte",
|
| 661 |
|
|
ram_split[(config & Ram_split) >> Ram_split_shift],
|
| 662 |
|
|
config & Autoselect ? "autoselect/" : "",
|
| 663 |
|
|
media_tbl[(config & Xcvr) >> Xcvr_shift].name);
|
| 664 |
|
|
vp->default_media = (config & Xcvr) >> Xcvr_shift;
|
| 665 |
|
|
vp->autoselect = config & Autoselect ? 1 : 0;
|
| 666 |
|
|
dev->if_port = vp->default_media;
|
| 667 |
|
|
}
|
| 668 |
|
|
if (vp->media_override != 7) {
|
| 669 |
|
|
printk(KERN_INFO " Media override to transceiver type %d (%s).\n",
|
| 670 |
|
|
vp->media_override,
|
| 671 |
|
|
media_tbl[vp->media_override].name);
|
| 672 |
|
|
dev->if_port = vp->media_override;
|
| 673 |
|
|
}
|
| 674 |
|
|
|
| 675 |
|
|
vp->capabilities = eeprom[16];
|
| 676 |
|
|
vp->full_bus_master_tx = (vp->capabilities & 0x20) ? 1 : 0;
|
| 677 |
|
|
/* Rx is broken at 10mbps, so we always disable it. */
|
| 678 |
|
|
/* vp->full_bus_master_rx = 0; */
|
| 679 |
|
|
vp->full_bus_master_rx = (vp->capabilities & 0x20) ? 1 : 0;
|
| 680 |
|
|
|
| 681 |
|
|
/* The 3c51x-specific entries in the device structure. */
|
| 682 |
|
|
dev->open = &corkscrew_open;
|
| 683 |
|
|
dev->hard_start_xmit = &corkscrew_start_xmit;
|
| 684 |
|
|
dev->tx_timeout = &corkscrew_timeout;
|
| 685 |
|
|
dev->watchdog_timeo = (400 * HZ) / 1000;
|
| 686 |
|
|
dev->stop = &corkscrew_close;
|
| 687 |
|
|
dev->get_stats = &corkscrew_get_stats;
|
| 688 |
|
|
dev->set_multicast_list = &set_rx_mode;
|
| 689 |
|
|
dev->ethtool_ops = &netdev_ethtool_ops;
|
| 690 |
|
|
|
| 691 |
|
|
return register_netdev(dev);
|
| 692 |
|
|
}
|
| 693 |
|
|
|
| 694 |
|
|
|
| 695 |
|
|
static int corkscrew_open(struct net_device *dev)
|
| 696 |
|
|
{
|
| 697 |
|
|
int ioaddr = dev->base_addr;
|
| 698 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 699 |
|
|
__u32 config;
|
| 700 |
|
|
int i;
|
| 701 |
|
|
|
| 702 |
|
|
/* Before initializing select the active media port. */
|
| 703 |
|
|
EL3WINDOW(3);
|
| 704 |
|
|
if (vp->full_duplex)
|
| 705 |
|
|
outb(0x20, ioaddr + Wn3_MAC_Ctrl); /* Set the full-duplex bit. */
|
| 706 |
|
|
config = inl(ioaddr + Wn3_Config);
|
| 707 |
|
|
|
| 708 |
|
|
if (vp->media_override != 7) {
|
| 709 |
|
|
if (corkscrew_debug > 1)
|
| 710 |
|
|
printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n",
|
| 711 |
|
|
dev->name, vp->media_override,
|
| 712 |
|
|
media_tbl[vp->media_override].name);
|
| 713 |
|
|
dev->if_port = vp->media_override;
|
| 714 |
|
|
} else if (vp->autoselect) {
|
| 715 |
|
|
/* Find first available media type, starting with 100baseTx. */
|
| 716 |
|
|
dev->if_port = 4;
|
| 717 |
|
|
while (!(vp->available_media & media_tbl[dev->if_port].mask))
|
| 718 |
|
|
dev->if_port = media_tbl[dev->if_port].next;
|
| 719 |
|
|
|
| 720 |
|
|
if (corkscrew_debug > 1)
|
| 721 |
|
|
printk("%s: Initial media type %s.\n",
|
| 722 |
|
|
dev->name, media_tbl[dev->if_port].name);
|
| 723 |
|
|
|
| 724 |
|
|
init_timer(&vp->timer);
|
| 725 |
|
|
vp->timer.expires = jiffies + media_tbl[dev->if_port].wait;
|
| 726 |
|
|
vp->timer.data = (unsigned long) dev;
|
| 727 |
|
|
vp->timer.function = &corkscrew_timer; /* timer handler */
|
| 728 |
|
|
add_timer(&vp->timer);
|
| 729 |
|
|
} else
|
| 730 |
|
|
dev->if_port = vp->default_media;
|
| 731 |
|
|
|
| 732 |
|
|
config = (config & ~Xcvr) | (dev->if_port << Xcvr_shift);
|
| 733 |
|
|
outl(config, ioaddr + Wn3_Config);
|
| 734 |
|
|
|
| 735 |
|
|
if (corkscrew_debug > 1) {
|
| 736 |
|
|
printk("%s: corkscrew_open() InternalConfig %8.8x.\n",
|
| 737 |
|
|
dev->name, config);
|
| 738 |
|
|
}
|
| 739 |
|
|
|
| 740 |
|
|
outw(TxReset, ioaddr + EL3_CMD);
|
| 741 |
|
|
for (i = 20; i >= 0; i--)
|
| 742 |
|
|
if (!(inw(ioaddr + EL3_STATUS) & CmdInProgress))
|
| 743 |
|
|
break;
|
| 744 |
|
|
|
| 745 |
|
|
outw(RxReset, ioaddr + EL3_CMD);
|
| 746 |
|
|
/* Wait a few ticks for the RxReset command to complete. */
|
| 747 |
|
|
for (i = 20; i >= 0; i--)
|
| 748 |
|
|
if (!(inw(ioaddr + EL3_STATUS) & CmdInProgress))
|
| 749 |
|
|
break;
|
| 750 |
|
|
|
| 751 |
|
|
outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
|
| 752 |
|
|
|
| 753 |
|
|
/* Use the now-standard shared IRQ implementation. */
|
| 754 |
|
|
if (vp->capabilities == 0x11c7) {
|
| 755 |
|
|
/* Corkscrew: Cannot share ISA resources. */
|
| 756 |
|
|
if (dev->irq == 0
|
| 757 |
|
|
|| dev->dma == 0
|
| 758 |
|
|
|| request_irq(dev->irq, &corkscrew_interrupt, 0,
|
| 759 |
|
|
vp->product_name, dev)) return -EAGAIN;
|
| 760 |
|
|
enable_dma(dev->dma);
|
| 761 |
|
|
set_dma_mode(dev->dma, DMA_MODE_CASCADE);
|
| 762 |
|
|
} else if (request_irq(dev->irq, &corkscrew_interrupt, IRQF_SHARED,
|
| 763 |
|
|
vp->product_name, dev)) {
|
| 764 |
|
|
return -EAGAIN;
|
| 765 |
|
|
}
|
| 766 |
|
|
|
| 767 |
|
|
if (corkscrew_debug > 1) {
|
| 768 |
|
|
EL3WINDOW(4);
|
| 769 |
|
|
printk("%s: corkscrew_open() irq %d media status %4.4x.\n",
|
| 770 |
|
|
dev->name, dev->irq, inw(ioaddr + Wn4_Media));
|
| 771 |
|
|
}
|
| 772 |
|
|
|
| 773 |
|
|
/* Set the station address and mask in window 2 each time opened. */
|
| 774 |
|
|
EL3WINDOW(2);
|
| 775 |
|
|
for (i = 0; i < 6; i++)
|
| 776 |
|
|
outb(dev->dev_addr[i], ioaddr + i);
|
| 777 |
|
|
for (; i < 12; i += 2)
|
| 778 |
|
|
outw(0, ioaddr + i);
|
| 779 |
|
|
|
| 780 |
|
|
if (dev->if_port == 3)
|
| 781 |
|
|
/* Start the thinnet transceiver. We should really wait 50ms... */
|
| 782 |
|
|
outw(StartCoax, ioaddr + EL3_CMD);
|
| 783 |
|
|
EL3WINDOW(4);
|
| 784 |
|
|
outw((inw(ioaddr + Wn4_Media) & ~(Media_10TP | Media_SQE)) |
|
| 785 |
|
|
media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
|
| 786 |
|
|
|
| 787 |
|
|
/* Switch to the stats window, and clear all stats by reading. */
|
| 788 |
|
|
outw(StatsDisable, ioaddr + EL3_CMD);
|
| 789 |
|
|
EL3WINDOW(6);
|
| 790 |
|
|
for (i = 0; i < 10; i++)
|
| 791 |
|
|
inb(ioaddr + i);
|
| 792 |
|
|
inw(ioaddr + 10);
|
| 793 |
|
|
inw(ioaddr + 12);
|
| 794 |
|
|
/* New: On the Vortex we must also clear the BadSSD counter. */
|
| 795 |
|
|
EL3WINDOW(4);
|
| 796 |
|
|
inb(ioaddr + 12);
|
| 797 |
|
|
/* ..and on the Boomerang we enable the extra statistics bits. */
|
| 798 |
|
|
outw(0x0040, ioaddr + Wn4_NetDiag);
|
| 799 |
|
|
|
| 800 |
|
|
/* Switch to register set 7 for normal use. */
|
| 801 |
|
|
EL3WINDOW(7);
|
| 802 |
|
|
|
| 803 |
|
|
if (vp->full_bus_master_rx) { /* Boomerang bus master. */
|
| 804 |
|
|
vp->cur_rx = vp->dirty_rx = 0;
|
| 805 |
|
|
if (corkscrew_debug > 2)
|
| 806 |
|
|
printk("%s: Filling in the Rx ring.\n",
|
| 807 |
|
|
dev->name);
|
| 808 |
|
|
for (i = 0; i < RX_RING_SIZE; i++) {
|
| 809 |
|
|
struct sk_buff *skb;
|
| 810 |
|
|
if (i < (RX_RING_SIZE - 1))
|
| 811 |
|
|
vp->rx_ring[i].next =
|
| 812 |
|
|
isa_virt_to_bus(&vp->rx_ring[i + 1]);
|
| 813 |
|
|
else
|
| 814 |
|
|
vp->rx_ring[i].next = 0;
|
| 815 |
|
|
vp->rx_ring[i].status = 0; /* Clear complete bit. */
|
| 816 |
|
|
vp->rx_ring[i].length = PKT_BUF_SZ | 0x80000000;
|
| 817 |
|
|
skb = dev_alloc_skb(PKT_BUF_SZ);
|
| 818 |
|
|
vp->rx_skbuff[i] = skb;
|
| 819 |
|
|
if (skb == NULL)
|
| 820 |
|
|
break; /* Bad news! */
|
| 821 |
|
|
skb->dev = dev; /* Mark as being used by this device. */
|
| 822 |
|
|
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
|
| 823 |
|
|
vp->rx_ring[i].addr = isa_virt_to_bus(skb->data);
|
| 824 |
|
|
}
|
| 825 |
|
|
vp->rx_ring[i - 1].next = isa_virt_to_bus(&vp->rx_ring[0]); /* Wrap the ring. */
|
| 826 |
|
|
outl(isa_virt_to_bus(&vp->rx_ring[0]), ioaddr + UpListPtr);
|
| 827 |
|
|
}
|
| 828 |
|
|
if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
|
| 829 |
|
|
vp->cur_tx = vp->dirty_tx = 0;
|
| 830 |
|
|
outb(PKT_BUF_SZ >> 8, ioaddr + TxFreeThreshold); /* Room for a packet. */
|
| 831 |
|
|
/* Clear the Tx ring. */
|
| 832 |
|
|
for (i = 0; i < TX_RING_SIZE; i++)
|
| 833 |
|
|
vp->tx_skbuff[i] = NULL;
|
| 834 |
|
|
outl(0, ioaddr + DownListPtr);
|
| 835 |
|
|
}
|
| 836 |
|
|
/* Set receiver mode: presumably accept b-case and phys addr only. */
|
| 837 |
|
|
set_rx_mode(dev);
|
| 838 |
|
|
outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
|
| 839 |
|
|
|
| 840 |
|
|
netif_start_queue(dev);
|
| 841 |
|
|
|
| 842 |
|
|
outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
|
| 843 |
|
|
outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
|
| 844 |
|
|
/* Allow status bits to be seen. */
|
| 845 |
|
|
outw(SetStatusEnb | AdapterFailure | IntReq | StatsFull |
|
| 846 |
|
|
(vp->full_bus_master_tx ? DownComplete : TxAvailable) |
|
| 847 |
|
|
(vp->full_bus_master_rx ? UpComplete : RxComplete) |
|
| 848 |
|
|
(vp->bus_master ? DMADone : 0), ioaddr + EL3_CMD);
|
| 849 |
|
|
/* Ack all pending events, and set active indicator mask. */
|
| 850 |
|
|
outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
|
| 851 |
|
|
ioaddr + EL3_CMD);
|
| 852 |
|
|
outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
|
| 853 |
|
|
| (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete,
|
| 854 |
|
|
ioaddr + EL3_CMD);
|
| 855 |
|
|
|
| 856 |
|
|
return 0;
|
| 857 |
|
|
}
|
| 858 |
|
|
|
| 859 |
|
|
static void corkscrew_timer(unsigned long data)
|
| 860 |
|
|
{
|
| 861 |
|
|
#ifdef AUTOMEDIA
|
| 862 |
|
|
struct net_device *dev = (struct net_device *) data;
|
| 863 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 864 |
|
|
int ioaddr = dev->base_addr;
|
| 865 |
|
|
unsigned long flags;
|
| 866 |
|
|
int ok = 0;
|
| 867 |
|
|
|
| 868 |
|
|
if (corkscrew_debug > 1)
|
| 869 |
|
|
printk("%s: Media selection timer tick happened, %s.\n",
|
| 870 |
|
|
dev->name, media_tbl[dev->if_port].name);
|
| 871 |
|
|
|
| 872 |
|
|
spin_lock_irqsave(&vp->lock, flags);
|
| 873 |
|
|
|
| 874 |
|
|
{
|
| 875 |
|
|
int old_window = inw(ioaddr + EL3_CMD) >> 13;
|
| 876 |
|
|
int media_status;
|
| 877 |
|
|
EL3WINDOW(4);
|
| 878 |
|
|
media_status = inw(ioaddr + Wn4_Media);
|
| 879 |
|
|
switch (dev->if_port) {
|
| 880 |
|
|
case 0:
|
| 881 |
|
|
case 4:
|
| 882 |
|
|
case 5: /* 10baseT, 100baseTX, 100baseFX */
|
| 883 |
|
|
if (media_status & Media_LnkBeat) {
|
| 884 |
|
|
ok = 1;
|
| 885 |
|
|
if (corkscrew_debug > 1)
|
| 886 |
|
|
printk("%s: Media %s has link beat, %x.\n",
|
| 887 |
|
|
dev->name,
|
| 888 |
|
|
media_tbl[dev->if_port].name,
|
| 889 |
|
|
media_status);
|
| 890 |
|
|
} else if (corkscrew_debug > 1)
|
| 891 |
|
|
printk("%s: Media %s is has no link beat, %x.\n",
|
| 892 |
|
|
dev->name,
|
| 893 |
|
|
media_tbl[dev->if_port].name,
|
| 894 |
|
|
media_status);
|
| 895 |
|
|
|
| 896 |
|
|
break;
|
| 897 |
|
|
default: /* Other media types handled by Tx timeouts. */
|
| 898 |
|
|
if (corkscrew_debug > 1)
|
| 899 |
|
|
printk("%s: Media %s is has no indication, %x.\n",
|
| 900 |
|
|
dev->name,
|
| 901 |
|
|
media_tbl[dev->if_port].name,
|
| 902 |
|
|
media_status);
|
| 903 |
|
|
ok = 1;
|
| 904 |
|
|
}
|
| 905 |
|
|
if (!ok) {
|
| 906 |
|
|
__u32 config;
|
| 907 |
|
|
|
| 908 |
|
|
do {
|
| 909 |
|
|
dev->if_port =
|
| 910 |
|
|
media_tbl[dev->if_port].next;
|
| 911 |
|
|
}
|
| 912 |
|
|
while (!(vp->available_media & media_tbl[dev->if_port].mask));
|
| 913 |
|
|
|
| 914 |
|
|
if (dev->if_port == 8) { /* Go back to default. */
|
| 915 |
|
|
dev->if_port = vp->default_media;
|
| 916 |
|
|
if (corkscrew_debug > 1)
|
| 917 |
|
|
printk("%s: Media selection failing, using default %s port.\n",
|
| 918 |
|
|
dev->name,
|
| 919 |
|
|
media_tbl[dev->if_port].name);
|
| 920 |
|
|
} else {
|
| 921 |
|
|
if (corkscrew_debug > 1)
|
| 922 |
|
|
printk("%s: Media selection failed, now trying %s port.\n",
|
| 923 |
|
|
dev->name,
|
| 924 |
|
|
media_tbl[dev->if_port].name);
|
| 925 |
|
|
vp->timer.expires = jiffies + media_tbl[dev->if_port].wait;
|
| 926 |
|
|
add_timer(&vp->timer);
|
| 927 |
|
|
}
|
| 928 |
|
|
outw((media_status & ~(Media_10TP | Media_SQE)) |
|
| 929 |
|
|
media_tbl[dev->if_port].media_bits,
|
| 930 |
|
|
ioaddr + Wn4_Media);
|
| 931 |
|
|
|
| 932 |
|
|
EL3WINDOW(3);
|
| 933 |
|
|
config = inl(ioaddr + Wn3_Config);
|
| 934 |
|
|
config = (config & ~Xcvr) | (dev->if_port << Xcvr_shift);
|
| 935 |
|
|
outl(config, ioaddr + Wn3_Config);
|
| 936 |
|
|
|
| 937 |
|
|
outw(dev->if_port == 3 ? StartCoax : StopCoax,
|
| 938 |
|
|
ioaddr + EL3_CMD);
|
| 939 |
|
|
}
|
| 940 |
|
|
EL3WINDOW(old_window);
|
| 941 |
|
|
}
|
| 942 |
|
|
|
| 943 |
|
|
spin_unlock_irqrestore(&vp->lock, flags);
|
| 944 |
|
|
if (corkscrew_debug > 1)
|
| 945 |
|
|
printk("%s: Media selection timer finished, %s.\n",
|
| 946 |
|
|
dev->name, media_tbl[dev->if_port].name);
|
| 947 |
|
|
|
| 948 |
|
|
#endif /* AUTOMEDIA */
|
| 949 |
|
|
return;
|
| 950 |
|
|
}
|
| 951 |
|
|
|
| 952 |
|
|
static void corkscrew_timeout(struct net_device *dev)
|
| 953 |
|
|
{
|
| 954 |
|
|
int i;
|
| 955 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 956 |
|
|
int ioaddr = dev->base_addr;
|
| 957 |
|
|
|
| 958 |
|
|
printk(KERN_WARNING
|
| 959 |
|
|
"%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
|
| 960 |
|
|
dev->name, inb(ioaddr + TxStatus),
|
| 961 |
|
|
inw(ioaddr + EL3_STATUS));
|
| 962 |
|
|
/* Slight code bloat to be user friendly. */
|
| 963 |
|
|
if ((inb(ioaddr + TxStatus) & 0x88) == 0x88)
|
| 964 |
|
|
printk(KERN_WARNING
|
| 965 |
|
|
"%s: Transmitter encountered 16 collisions -- network"
|
| 966 |
|
|
" network cable problem?\n", dev->name);
|
| 967 |
|
|
#ifndef final_version
|
| 968 |
|
|
printk(" Flags; bus-master %d, full %d; dirty %d current %d.\n",
|
| 969 |
|
|
vp->full_bus_master_tx, vp->tx_full, vp->dirty_tx,
|
| 970 |
|
|
vp->cur_tx);
|
| 971 |
|
|
printk(" Down list %8.8x vs. %p.\n", inl(ioaddr + DownListPtr),
|
| 972 |
|
|
&vp->tx_ring[0]);
|
| 973 |
|
|
for (i = 0; i < TX_RING_SIZE; i++) {
|
| 974 |
|
|
printk(" %d: %p length %8.8x status %8.8x\n", i,
|
| 975 |
|
|
&vp->tx_ring[i],
|
| 976 |
|
|
vp->tx_ring[i].length, vp->tx_ring[i].status);
|
| 977 |
|
|
}
|
| 978 |
|
|
#endif
|
| 979 |
|
|
/* Issue TX_RESET and TX_START commands. */
|
| 980 |
|
|
outw(TxReset, ioaddr + EL3_CMD);
|
| 981 |
|
|
for (i = 20; i >= 0; i--)
|
| 982 |
|
|
if (!(inw(ioaddr + EL3_STATUS) & CmdInProgress))
|
| 983 |
|
|
break;
|
| 984 |
|
|
outw(TxEnable, ioaddr + EL3_CMD);
|
| 985 |
|
|
dev->trans_start = jiffies;
|
| 986 |
|
|
vp->stats.tx_errors++;
|
| 987 |
|
|
vp->stats.tx_dropped++;
|
| 988 |
|
|
netif_wake_queue(dev);
|
| 989 |
|
|
}
|
| 990 |
|
|
|
| 991 |
|
|
static int corkscrew_start_xmit(struct sk_buff *skb,
|
| 992 |
|
|
struct net_device *dev)
|
| 993 |
|
|
{
|
| 994 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 995 |
|
|
int ioaddr = dev->base_addr;
|
| 996 |
|
|
|
| 997 |
|
|
/* Block a timer-based transmit from overlapping. */
|
| 998 |
|
|
|
| 999 |
|
|
netif_stop_queue(dev);
|
| 1000 |
|
|
|
| 1001 |
|
|
if (vp->full_bus_master_tx) { /* BOOMERANG bus-master */
|
| 1002 |
|
|
/* Calculate the next Tx descriptor entry. */
|
| 1003 |
|
|
int entry = vp->cur_tx % TX_RING_SIZE;
|
| 1004 |
|
|
struct boom_tx_desc *prev_entry;
|
| 1005 |
|
|
unsigned long flags;
|
| 1006 |
|
|
int i;
|
| 1007 |
|
|
|
| 1008 |
|
|
if (vp->tx_full) /* No room to transmit with */
|
| 1009 |
|
|
return 1;
|
| 1010 |
|
|
if (vp->cur_tx != 0)
|
| 1011 |
|
|
prev_entry = &vp->tx_ring[(vp->cur_tx - 1) % TX_RING_SIZE];
|
| 1012 |
|
|
else
|
| 1013 |
|
|
prev_entry = NULL;
|
| 1014 |
|
|
if (corkscrew_debug > 3)
|
| 1015 |
|
|
printk("%s: Trying to send a packet, Tx index %d.\n",
|
| 1016 |
|
|
dev->name, vp->cur_tx);
|
| 1017 |
|
|
/* vp->tx_full = 1; */
|
| 1018 |
|
|
vp->tx_skbuff[entry] = skb;
|
| 1019 |
|
|
vp->tx_ring[entry].next = 0;
|
| 1020 |
|
|
vp->tx_ring[entry].addr = isa_virt_to_bus(skb->data);
|
| 1021 |
|
|
vp->tx_ring[entry].length = skb->len | 0x80000000;
|
| 1022 |
|
|
vp->tx_ring[entry].status = skb->len | 0x80000000;
|
| 1023 |
|
|
|
| 1024 |
|
|
spin_lock_irqsave(&vp->lock, flags);
|
| 1025 |
|
|
outw(DownStall, ioaddr + EL3_CMD);
|
| 1026 |
|
|
/* Wait for the stall to complete. */
|
| 1027 |
|
|
for (i = 20; i >= 0; i--)
|
| 1028 |
|
|
if ((inw(ioaddr + EL3_STATUS) & CmdInProgress) == 0)
|
| 1029 |
|
|
break;
|
| 1030 |
|
|
if (prev_entry)
|
| 1031 |
|
|
prev_entry->next = isa_virt_to_bus(&vp->tx_ring[entry]);
|
| 1032 |
|
|
if (inl(ioaddr + DownListPtr) == 0) {
|
| 1033 |
|
|
outl(isa_virt_to_bus(&vp->tx_ring[entry]),
|
| 1034 |
|
|
ioaddr + DownListPtr);
|
| 1035 |
|
|
queued_packet++;
|
| 1036 |
|
|
}
|
| 1037 |
|
|
outw(DownUnstall, ioaddr + EL3_CMD);
|
| 1038 |
|
|
spin_unlock_irqrestore(&vp->lock, flags);
|
| 1039 |
|
|
|
| 1040 |
|
|
vp->cur_tx++;
|
| 1041 |
|
|
if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1)
|
| 1042 |
|
|
vp->tx_full = 1;
|
| 1043 |
|
|
else { /* Clear previous interrupt enable. */
|
| 1044 |
|
|
if (prev_entry)
|
| 1045 |
|
|
prev_entry->status &= ~0x80000000;
|
| 1046 |
|
|
netif_wake_queue(dev);
|
| 1047 |
|
|
}
|
| 1048 |
|
|
dev->trans_start = jiffies;
|
| 1049 |
|
|
return 0;
|
| 1050 |
|
|
}
|
| 1051 |
|
|
/* Put out the doubleword header... */
|
| 1052 |
|
|
outl(skb->len, ioaddr + TX_FIFO);
|
| 1053 |
|
|
vp->stats.tx_bytes += skb->len;
|
| 1054 |
|
|
#ifdef VORTEX_BUS_MASTER
|
| 1055 |
|
|
if (vp->bus_master) {
|
| 1056 |
|
|
/* Set the bus-master controller to transfer the packet. */
|
| 1057 |
|
|
outl((int) (skb->data), ioaddr + Wn7_MasterAddr);
|
| 1058 |
|
|
outw((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
|
| 1059 |
|
|
vp->tx_skb = skb;
|
| 1060 |
|
|
outw(StartDMADown, ioaddr + EL3_CMD);
|
| 1061 |
|
|
/* queue will be woken at the DMADone interrupt. */
|
| 1062 |
|
|
} else {
|
| 1063 |
|
|
/* ... and the packet rounded to a doubleword. */
|
| 1064 |
|
|
outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
|
| 1065 |
|
|
dev_kfree_skb(skb);
|
| 1066 |
|
|
if (inw(ioaddr + TxFree) > 1536) {
|
| 1067 |
|
|
netif_wake_queue(dev);
|
| 1068 |
|
|
} else
|
| 1069 |
|
|
/* Interrupt us when the FIFO has room for max-sized packet. */
|
| 1070 |
|
|
outw(SetTxThreshold + (1536 >> 2),
|
| 1071 |
|
|
ioaddr + EL3_CMD);
|
| 1072 |
|
|
}
|
| 1073 |
|
|
#else
|
| 1074 |
|
|
/* ... and the packet rounded to a doubleword. */
|
| 1075 |
|
|
outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
|
| 1076 |
|
|
dev_kfree_skb(skb);
|
| 1077 |
|
|
if (inw(ioaddr + TxFree) > 1536) {
|
| 1078 |
|
|
netif_wake_queue(dev);
|
| 1079 |
|
|
} else
|
| 1080 |
|
|
/* Interrupt us when the FIFO has room for max-sized packet. */
|
| 1081 |
|
|
outw(SetTxThreshold + (1536 >> 2), ioaddr + EL3_CMD);
|
| 1082 |
|
|
#endif /* bus master */
|
| 1083 |
|
|
|
| 1084 |
|
|
dev->trans_start = jiffies;
|
| 1085 |
|
|
|
| 1086 |
|
|
/* Clear the Tx status stack. */
|
| 1087 |
|
|
{
|
| 1088 |
|
|
short tx_status;
|
| 1089 |
|
|
int i = 4;
|
| 1090 |
|
|
|
| 1091 |
|
|
while (--i > 0 && (tx_status = inb(ioaddr + TxStatus)) > 0) {
|
| 1092 |
|
|
if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
|
| 1093 |
|
|
if (corkscrew_debug > 2)
|
| 1094 |
|
|
printk("%s: Tx error, status %2.2x.\n",
|
| 1095 |
|
|
dev->name, tx_status);
|
| 1096 |
|
|
if (tx_status & 0x04)
|
| 1097 |
|
|
vp->stats.tx_fifo_errors++;
|
| 1098 |
|
|
if (tx_status & 0x38)
|
| 1099 |
|
|
vp->stats.tx_aborted_errors++;
|
| 1100 |
|
|
if (tx_status & 0x30) {
|
| 1101 |
|
|
int j;
|
| 1102 |
|
|
outw(TxReset, ioaddr + EL3_CMD);
|
| 1103 |
|
|
for (j = 20; j >= 0; j--)
|
| 1104 |
|
|
if (!(inw(ioaddr + EL3_STATUS) & CmdInProgress))
|
| 1105 |
|
|
break;
|
| 1106 |
|
|
}
|
| 1107 |
|
|
outw(TxEnable, ioaddr + EL3_CMD);
|
| 1108 |
|
|
}
|
| 1109 |
|
|
outb(0x00, ioaddr + TxStatus); /* Pop the status stack. */
|
| 1110 |
|
|
}
|
| 1111 |
|
|
}
|
| 1112 |
|
|
return 0;
|
| 1113 |
|
|
}
|
| 1114 |
|
|
|
| 1115 |
|
|
/* The interrupt handler does all of the Rx thread work and cleans up
|
| 1116 |
|
|
after the Tx thread. */
|
| 1117 |
|
|
|
| 1118 |
|
|
static irqreturn_t corkscrew_interrupt(int irq, void *dev_id)
|
| 1119 |
|
|
{
|
| 1120 |
|
|
/* Use the now-standard shared IRQ implementation. */
|
| 1121 |
|
|
struct net_device *dev = dev_id;
|
| 1122 |
|
|
struct corkscrew_private *lp = netdev_priv(dev);
|
| 1123 |
|
|
int ioaddr, status;
|
| 1124 |
|
|
int latency;
|
| 1125 |
|
|
int i = max_interrupt_work;
|
| 1126 |
|
|
|
| 1127 |
|
|
ioaddr = dev->base_addr;
|
| 1128 |
|
|
latency = inb(ioaddr + Timer);
|
| 1129 |
|
|
|
| 1130 |
|
|
spin_lock(&lp->lock);
|
| 1131 |
|
|
|
| 1132 |
|
|
status = inw(ioaddr + EL3_STATUS);
|
| 1133 |
|
|
|
| 1134 |
|
|
if (corkscrew_debug > 4)
|
| 1135 |
|
|
printk("%s: interrupt, status %4.4x, timer %d.\n",
|
| 1136 |
|
|
dev->name, status, latency);
|
| 1137 |
|
|
if ((status & 0xE000) != 0xE000) {
|
| 1138 |
|
|
static int donedidthis;
|
| 1139 |
|
|
/* Some interrupt controllers store a bogus interrupt from boot-time.
|
| 1140 |
|
|
Ignore a single early interrupt, but don't hang the machine for
|
| 1141 |
|
|
other interrupt problems. */
|
| 1142 |
|
|
if (donedidthis++ > 100) {
|
| 1143 |
|
|
printk(KERN_ERR "%s: Bogus interrupt, bailing. Status %4.4x, start=%d.\n",
|
| 1144 |
|
|
dev->name, status, netif_running(dev));
|
| 1145 |
|
|
free_irq(dev->irq, dev);
|
| 1146 |
|
|
dev->irq = -1;
|
| 1147 |
|
|
}
|
| 1148 |
|
|
}
|
| 1149 |
|
|
|
| 1150 |
|
|
do {
|
| 1151 |
|
|
if (corkscrew_debug > 5)
|
| 1152 |
|
|
printk("%s: In interrupt loop, status %4.4x.\n",
|
| 1153 |
|
|
dev->name, status);
|
| 1154 |
|
|
if (status & RxComplete)
|
| 1155 |
|
|
corkscrew_rx(dev);
|
| 1156 |
|
|
|
| 1157 |
|
|
if (status & TxAvailable) {
|
| 1158 |
|
|
if (corkscrew_debug > 5)
|
| 1159 |
|
|
printk(" TX room bit was handled.\n");
|
| 1160 |
|
|
/* There's room in the FIFO for a full-sized packet. */
|
| 1161 |
|
|
outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
|
| 1162 |
|
|
netif_wake_queue(dev);
|
| 1163 |
|
|
}
|
| 1164 |
|
|
if (status & DownComplete) {
|
| 1165 |
|
|
unsigned int dirty_tx = lp->dirty_tx;
|
| 1166 |
|
|
|
| 1167 |
|
|
while (lp->cur_tx - dirty_tx > 0) {
|
| 1168 |
|
|
int entry = dirty_tx % TX_RING_SIZE;
|
| 1169 |
|
|
if (inl(ioaddr + DownListPtr) == isa_virt_to_bus(&lp->tx_ring[entry]))
|
| 1170 |
|
|
break; /* It still hasn't been processed. */
|
| 1171 |
|
|
if (lp->tx_skbuff[entry]) {
|
| 1172 |
|
|
dev_kfree_skb_irq(lp->tx_skbuff[entry]);
|
| 1173 |
|
|
lp->tx_skbuff[entry] = NULL;
|
| 1174 |
|
|
}
|
| 1175 |
|
|
dirty_tx++;
|
| 1176 |
|
|
}
|
| 1177 |
|
|
lp->dirty_tx = dirty_tx;
|
| 1178 |
|
|
outw(AckIntr | DownComplete, ioaddr + EL3_CMD);
|
| 1179 |
|
|
if (lp->tx_full && (lp->cur_tx - dirty_tx <= TX_RING_SIZE - 1)) {
|
| 1180 |
|
|
lp->tx_full = 0;
|
| 1181 |
|
|
netif_wake_queue(dev);
|
| 1182 |
|
|
}
|
| 1183 |
|
|
}
|
| 1184 |
|
|
#ifdef VORTEX_BUS_MASTER
|
| 1185 |
|
|
if (status & DMADone) {
|
| 1186 |
|
|
outw(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
|
| 1187 |
|
|
dev_kfree_skb_irq(lp->tx_skb); /* Release the transferred buffer */
|
| 1188 |
|
|
netif_wake_queue(dev);
|
| 1189 |
|
|
}
|
| 1190 |
|
|
#endif
|
| 1191 |
|
|
if (status & UpComplete) {
|
| 1192 |
|
|
boomerang_rx(dev);
|
| 1193 |
|
|
outw(AckIntr | UpComplete, ioaddr + EL3_CMD);
|
| 1194 |
|
|
}
|
| 1195 |
|
|
if (status & (AdapterFailure | RxEarly | StatsFull)) {
|
| 1196 |
|
|
/* Handle all uncommon interrupts at once. */
|
| 1197 |
|
|
if (status & RxEarly) { /* Rx early is unused. */
|
| 1198 |
|
|
corkscrew_rx(dev);
|
| 1199 |
|
|
outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
|
| 1200 |
|
|
}
|
| 1201 |
|
|
if (status & StatsFull) { /* Empty statistics. */
|
| 1202 |
|
|
static int DoneDidThat;
|
| 1203 |
|
|
if (corkscrew_debug > 4)
|
| 1204 |
|
|
printk("%s: Updating stats.\n", dev->name);
|
| 1205 |
|
|
update_stats(ioaddr, dev);
|
| 1206 |
|
|
/* DEBUG HACK: Disable statistics as an interrupt source. */
|
| 1207 |
|
|
/* This occurs when we have the wrong media type! */
|
| 1208 |
|
|
if (DoneDidThat == 0 && inw(ioaddr + EL3_STATUS) & StatsFull) {
|
| 1209 |
|
|
int win, reg;
|
| 1210 |
|
|
printk("%s: Updating stats failed, disabling stats as an"
|
| 1211 |
|
|
" interrupt source.\n", dev->name);
|
| 1212 |
|
|
for (win = 0; win < 8; win++) {
|
| 1213 |
|
|
EL3WINDOW(win);
|
| 1214 |
|
|
printk("\n Vortex window %d:", win);
|
| 1215 |
|
|
for (reg = 0; reg < 16; reg++)
|
| 1216 |
|
|
printk(" %2.2x", inb(ioaddr + reg));
|
| 1217 |
|
|
}
|
| 1218 |
|
|
EL3WINDOW(7);
|
| 1219 |
|
|
outw(SetIntrEnb | TxAvailable |
|
| 1220 |
|
|
RxComplete | AdapterFailure |
|
| 1221 |
|
|
UpComplete | DownComplete |
|
| 1222 |
|
|
TxComplete, ioaddr + EL3_CMD);
|
| 1223 |
|
|
DoneDidThat++;
|
| 1224 |
|
|
}
|
| 1225 |
|
|
}
|
| 1226 |
|
|
if (status & AdapterFailure) {
|
| 1227 |
|
|
/* Adapter failure requires Rx reset and reinit. */
|
| 1228 |
|
|
outw(RxReset, ioaddr + EL3_CMD);
|
| 1229 |
|
|
/* Set the Rx filter to the current state. */
|
| 1230 |
|
|
set_rx_mode(dev);
|
| 1231 |
|
|
outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
|
| 1232 |
|
|
outw(AckIntr | AdapterFailure,
|
| 1233 |
|
|
ioaddr + EL3_CMD);
|
| 1234 |
|
|
}
|
| 1235 |
|
|
}
|
| 1236 |
|
|
|
| 1237 |
|
|
if (--i < 0) {
|
| 1238 |
|
|
printk(KERN_ERR "%s: Too much work in interrupt, status %4.4x. "
|
| 1239 |
|
|
"Disabling functions (%4.4x).\n", dev->name,
|
| 1240 |
|
|
status, SetStatusEnb | ((~status) & 0x7FE));
|
| 1241 |
|
|
/* Disable all pending interrupts. */
|
| 1242 |
|
|
outw(SetStatusEnb | ((~status) & 0x7FE), ioaddr + EL3_CMD);
|
| 1243 |
|
|
outw(AckIntr | 0x7FF, ioaddr + EL3_CMD);
|
| 1244 |
|
|
break;
|
| 1245 |
|
|
}
|
| 1246 |
|
|
/* Acknowledge the IRQ. */
|
| 1247 |
|
|
outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
|
| 1248 |
|
|
|
| 1249 |
|
|
} while ((status = inw(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
|
| 1250 |
|
|
|
| 1251 |
|
|
spin_unlock(&lp->lock);
|
| 1252 |
|
|
|
| 1253 |
|
|
if (corkscrew_debug > 4)
|
| 1254 |
|
|
printk("%s: exiting interrupt, status %4.4x.\n", dev->name, status);
|
| 1255 |
|
|
return IRQ_HANDLED;
|
| 1256 |
|
|
}
|
| 1257 |
|
|
|
| 1258 |
|
|
static int corkscrew_rx(struct net_device *dev)
|
| 1259 |
|
|
{
|
| 1260 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 1261 |
|
|
int ioaddr = dev->base_addr;
|
| 1262 |
|
|
int i;
|
| 1263 |
|
|
short rx_status;
|
| 1264 |
|
|
|
| 1265 |
|
|
if (corkscrew_debug > 5)
|
| 1266 |
|
|
printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
|
| 1267 |
|
|
inw(ioaddr + EL3_STATUS), inw(ioaddr + RxStatus));
|
| 1268 |
|
|
while ((rx_status = inw(ioaddr + RxStatus)) > 0) {
|
| 1269 |
|
|
if (rx_status & 0x4000) { /* Error, update stats. */
|
| 1270 |
|
|
unsigned char rx_error = inb(ioaddr + RxErrors);
|
| 1271 |
|
|
if (corkscrew_debug > 2)
|
| 1272 |
|
|
printk(" Rx error: status %2.2x.\n",
|
| 1273 |
|
|
rx_error);
|
| 1274 |
|
|
vp->stats.rx_errors++;
|
| 1275 |
|
|
if (rx_error & 0x01)
|
| 1276 |
|
|
vp->stats.rx_over_errors++;
|
| 1277 |
|
|
if (rx_error & 0x02)
|
| 1278 |
|
|
vp->stats.rx_length_errors++;
|
| 1279 |
|
|
if (rx_error & 0x04)
|
| 1280 |
|
|
vp->stats.rx_frame_errors++;
|
| 1281 |
|
|
if (rx_error & 0x08)
|
| 1282 |
|
|
vp->stats.rx_crc_errors++;
|
| 1283 |
|
|
if (rx_error & 0x10)
|
| 1284 |
|
|
vp->stats.rx_length_errors++;
|
| 1285 |
|
|
} else {
|
| 1286 |
|
|
/* The packet length: up to 4.5K!. */
|
| 1287 |
|
|
short pkt_len = rx_status & 0x1fff;
|
| 1288 |
|
|
struct sk_buff *skb;
|
| 1289 |
|
|
|
| 1290 |
|
|
skb = dev_alloc_skb(pkt_len + 5 + 2);
|
| 1291 |
|
|
if (corkscrew_debug > 4)
|
| 1292 |
|
|
printk("Receiving packet size %d status %4.4x.\n",
|
| 1293 |
|
|
pkt_len, rx_status);
|
| 1294 |
|
|
if (skb != NULL) {
|
| 1295 |
|
|
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
|
| 1296 |
|
|
/* 'skb_put()' points to the start of sk_buff data area. */
|
| 1297 |
|
|
insl(ioaddr + RX_FIFO,
|
| 1298 |
|
|
skb_put(skb, pkt_len),
|
| 1299 |
|
|
(pkt_len + 3) >> 2);
|
| 1300 |
|
|
outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
|
| 1301 |
|
|
skb->protocol = eth_type_trans(skb, dev);
|
| 1302 |
|
|
netif_rx(skb);
|
| 1303 |
|
|
dev->last_rx = jiffies;
|
| 1304 |
|
|
vp->stats.rx_packets++;
|
| 1305 |
|
|
vp->stats.rx_bytes += pkt_len;
|
| 1306 |
|
|
/* Wait a limited time to go to next packet. */
|
| 1307 |
|
|
for (i = 200; i >= 0; i--)
|
| 1308 |
|
|
if (! (inw(ioaddr + EL3_STATUS) & CmdInProgress))
|
| 1309 |
|
|
break;
|
| 1310 |
|
|
continue;
|
| 1311 |
|
|
} else if (corkscrew_debug)
|
| 1312 |
|
|
printk("%s: Couldn't allocate a sk_buff of size %d.\n", dev->name, pkt_len);
|
| 1313 |
|
|
}
|
| 1314 |
|
|
outw(RxDiscard, ioaddr + EL3_CMD);
|
| 1315 |
|
|
vp->stats.rx_dropped++;
|
| 1316 |
|
|
/* Wait a limited time to skip this packet. */
|
| 1317 |
|
|
for (i = 200; i >= 0; i--)
|
| 1318 |
|
|
if (!(inw(ioaddr + EL3_STATUS) & CmdInProgress))
|
| 1319 |
|
|
break;
|
| 1320 |
|
|
}
|
| 1321 |
|
|
return 0;
|
| 1322 |
|
|
}
|
| 1323 |
|
|
|
| 1324 |
|
|
static int boomerang_rx(struct net_device *dev)
|
| 1325 |
|
|
{
|
| 1326 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 1327 |
|
|
int entry = vp->cur_rx % RX_RING_SIZE;
|
| 1328 |
|
|
int ioaddr = dev->base_addr;
|
| 1329 |
|
|
int rx_status;
|
| 1330 |
|
|
|
| 1331 |
|
|
if (corkscrew_debug > 5)
|
| 1332 |
|
|
printk(" In boomerang_rx(), status %4.4x, rx_status %4.4x.\n",
|
| 1333 |
|
|
inw(ioaddr + EL3_STATUS), inw(ioaddr + RxStatus));
|
| 1334 |
|
|
while ((rx_status = vp->rx_ring[entry].status) & RxDComplete) {
|
| 1335 |
|
|
if (rx_status & RxDError) { /* Error, update stats. */
|
| 1336 |
|
|
unsigned char rx_error = rx_status >> 16;
|
| 1337 |
|
|
if (corkscrew_debug > 2)
|
| 1338 |
|
|
printk(" Rx error: status %2.2x.\n",
|
| 1339 |
|
|
rx_error);
|
| 1340 |
|
|
vp->stats.rx_errors++;
|
| 1341 |
|
|
if (rx_error & 0x01)
|
| 1342 |
|
|
vp->stats.rx_over_errors++;
|
| 1343 |
|
|
if (rx_error & 0x02)
|
| 1344 |
|
|
vp->stats.rx_length_errors++;
|
| 1345 |
|
|
if (rx_error & 0x04)
|
| 1346 |
|
|
vp->stats.rx_frame_errors++;
|
| 1347 |
|
|
if (rx_error & 0x08)
|
| 1348 |
|
|
vp->stats.rx_crc_errors++;
|
| 1349 |
|
|
if (rx_error & 0x10)
|
| 1350 |
|
|
vp->stats.rx_length_errors++;
|
| 1351 |
|
|
} else {
|
| 1352 |
|
|
/* The packet length: up to 4.5K!. */
|
| 1353 |
|
|
short pkt_len = rx_status & 0x1fff;
|
| 1354 |
|
|
struct sk_buff *skb;
|
| 1355 |
|
|
|
| 1356 |
|
|
vp->stats.rx_bytes += pkt_len;
|
| 1357 |
|
|
if (corkscrew_debug > 4)
|
| 1358 |
|
|
printk("Receiving packet size %d status %4.4x.\n",
|
| 1359 |
|
|
pkt_len, rx_status);
|
| 1360 |
|
|
|
| 1361 |
|
|
/* Check if the packet is long enough to just accept without
|
| 1362 |
|
|
copying to a properly sized skbuff. */
|
| 1363 |
|
|
if (pkt_len < rx_copybreak
|
| 1364 |
|
|
&& (skb = dev_alloc_skb(pkt_len + 4)) != 0) {
|
| 1365 |
|
|
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
|
| 1366 |
|
|
/* 'skb_put()' points to the start of sk_buff data area. */
|
| 1367 |
|
|
memcpy(skb_put(skb, pkt_len),
|
| 1368 |
|
|
isa_bus_to_virt(vp->rx_ring[entry].
|
| 1369 |
|
|
addr), pkt_len);
|
| 1370 |
|
|
rx_copy++;
|
| 1371 |
|
|
} else {
|
| 1372 |
|
|
void *temp;
|
| 1373 |
|
|
/* Pass up the skbuff already on the Rx ring. */
|
| 1374 |
|
|
skb = vp->rx_skbuff[entry];
|
| 1375 |
|
|
vp->rx_skbuff[entry] = NULL;
|
| 1376 |
|
|
temp = skb_put(skb, pkt_len);
|
| 1377 |
|
|
/* Remove this checking code for final release. */
|
| 1378 |
|
|
if (isa_bus_to_virt(vp->rx_ring[entry].addr) != temp)
|
| 1379 |
|
|
printk("%s: Warning -- the skbuff addresses do not match"
|
| 1380 |
|
|
" in boomerang_rx: %p vs. %p / %p.\n",
|
| 1381 |
|
|
dev->name,
|
| 1382 |
|
|
isa_bus_to_virt(vp->
|
| 1383 |
|
|
rx_ring[entry].
|
| 1384 |
|
|
addr), skb->head,
|
| 1385 |
|
|
temp);
|
| 1386 |
|
|
rx_nocopy++;
|
| 1387 |
|
|
}
|
| 1388 |
|
|
skb->protocol = eth_type_trans(skb, dev);
|
| 1389 |
|
|
netif_rx(skb);
|
| 1390 |
|
|
dev->last_rx = jiffies;
|
| 1391 |
|
|
vp->stats.rx_packets++;
|
| 1392 |
|
|
}
|
| 1393 |
|
|
entry = (++vp->cur_rx) % RX_RING_SIZE;
|
| 1394 |
|
|
}
|
| 1395 |
|
|
/* Refill the Rx ring buffers. */
|
| 1396 |
|
|
for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
|
| 1397 |
|
|
struct sk_buff *skb;
|
| 1398 |
|
|
entry = vp->dirty_rx % RX_RING_SIZE;
|
| 1399 |
|
|
if (vp->rx_skbuff[entry] == NULL) {
|
| 1400 |
|
|
skb = dev_alloc_skb(PKT_BUF_SZ);
|
| 1401 |
|
|
if (skb == NULL)
|
| 1402 |
|
|
break; /* Bad news! */
|
| 1403 |
|
|
skb->dev = dev; /* Mark as being used by this device. */
|
| 1404 |
|
|
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
|
| 1405 |
|
|
vp->rx_ring[entry].addr = isa_virt_to_bus(skb->data);
|
| 1406 |
|
|
vp->rx_skbuff[entry] = skb;
|
| 1407 |
|
|
}
|
| 1408 |
|
|
vp->rx_ring[entry].status = 0; /* Clear complete bit. */
|
| 1409 |
|
|
}
|
| 1410 |
|
|
return 0;
|
| 1411 |
|
|
}
|
| 1412 |
|
|
|
| 1413 |
|
|
static int corkscrew_close(struct net_device *dev)
|
| 1414 |
|
|
{
|
| 1415 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 1416 |
|
|
int ioaddr = dev->base_addr;
|
| 1417 |
|
|
int i;
|
| 1418 |
|
|
|
| 1419 |
|
|
netif_stop_queue(dev);
|
| 1420 |
|
|
|
| 1421 |
|
|
if (corkscrew_debug > 1) {
|
| 1422 |
|
|
printk("%s: corkscrew_close() status %4.4x, Tx status %2.2x.\n",
|
| 1423 |
|
|
dev->name, inw(ioaddr + EL3_STATUS),
|
| 1424 |
|
|
inb(ioaddr + TxStatus));
|
| 1425 |
|
|
printk("%s: corkscrew close stats: rx_nocopy %d rx_copy %d"
|
| 1426 |
|
|
" tx_queued %d.\n", dev->name, rx_nocopy, rx_copy,
|
| 1427 |
|
|
queued_packet);
|
| 1428 |
|
|
}
|
| 1429 |
|
|
|
| 1430 |
|
|
del_timer(&vp->timer);
|
| 1431 |
|
|
|
| 1432 |
|
|
/* Turn off statistics ASAP. We update lp->stats below. */
|
| 1433 |
|
|
outw(StatsDisable, ioaddr + EL3_CMD);
|
| 1434 |
|
|
|
| 1435 |
|
|
/* Disable the receiver and transmitter. */
|
| 1436 |
|
|
outw(RxDisable, ioaddr + EL3_CMD);
|
| 1437 |
|
|
outw(TxDisable, ioaddr + EL3_CMD);
|
| 1438 |
|
|
|
| 1439 |
|
|
if (dev->if_port == XCVR_10base2)
|
| 1440 |
|
|
/* Turn off thinnet power. Green! */
|
| 1441 |
|
|
outw(StopCoax, ioaddr + EL3_CMD);
|
| 1442 |
|
|
|
| 1443 |
|
|
free_irq(dev->irq, dev);
|
| 1444 |
|
|
|
| 1445 |
|
|
outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
|
| 1446 |
|
|
|
| 1447 |
|
|
update_stats(ioaddr, dev);
|
| 1448 |
|
|
if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
|
| 1449 |
|
|
outl(0, ioaddr + UpListPtr);
|
| 1450 |
|
|
for (i = 0; i < RX_RING_SIZE; i++)
|
| 1451 |
|
|
if (vp->rx_skbuff[i]) {
|
| 1452 |
|
|
dev_kfree_skb(vp->rx_skbuff[i]);
|
| 1453 |
|
|
vp->rx_skbuff[i] = NULL;
|
| 1454 |
|
|
}
|
| 1455 |
|
|
}
|
| 1456 |
|
|
if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
|
| 1457 |
|
|
outl(0, ioaddr + DownListPtr);
|
| 1458 |
|
|
for (i = 0; i < TX_RING_SIZE; i++)
|
| 1459 |
|
|
if (vp->tx_skbuff[i]) {
|
| 1460 |
|
|
dev_kfree_skb(vp->tx_skbuff[i]);
|
| 1461 |
|
|
vp->tx_skbuff[i] = NULL;
|
| 1462 |
|
|
}
|
| 1463 |
|
|
}
|
| 1464 |
|
|
|
| 1465 |
|
|
return 0;
|
| 1466 |
|
|
}
|
| 1467 |
|
|
|
| 1468 |
|
|
static struct net_device_stats *corkscrew_get_stats(struct net_device *dev)
|
| 1469 |
|
|
{
|
| 1470 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 1471 |
|
|
unsigned long flags;
|
| 1472 |
|
|
|
| 1473 |
|
|
if (netif_running(dev)) {
|
| 1474 |
|
|
spin_lock_irqsave(&vp->lock, flags);
|
| 1475 |
|
|
update_stats(dev->base_addr, dev);
|
| 1476 |
|
|
spin_unlock_irqrestore(&vp->lock, flags);
|
| 1477 |
|
|
}
|
| 1478 |
|
|
return &vp->stats;
|
| 1479 |
|
|
}
|
| 1480 |
|
|
|
| 1481 |
|
|
/* Update statistics.
|
| 1482 |
|
|
Unlike with the EL3 we need not worry about interrupts changing
|
| 1483 |
|
|
the window setting from underneath us, but we must still guard
|
| 1484 |
|
|
against a race condition with a StatsUpdate interrupt updating the
|
| 1485 |
|
|
table. This is done by checking that the ASM (!) code generated uses
|
| 1486 |
|
|
atomic updates with '+='.
|
| 1487 |
|
|
*/
|
| 1488 |
|
|
static void update_stats(int ioaddr, struct net_device *dev)
|
| 1489 |
|
|
{
|
| 1490 |
|
|
struct corkscrew_private *vp = netdev_priv(dev);
|
| 1491 |
|
|
|
| 1492 |
|
|
/* Unlike the 3c5x9 we need not turn off stats updates while reading. */
|
| 1493 |
|
|
/* Switch to the stats window, and read everything. */
|
| 1494 |
|
|
EL3WINDOW(6);
|
| 1495 |
|
|
vp->stats.tx_carrier_errors += inb(ioaddr + 0);
|
| 1496 |
|
|
vp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
|
| 1497 |
|
|
/* Multiple collisions. */ inb(ioaddr + 2);
|
| 1498 |
|
|
vp->stats.collisions += inb(ioaddr + 3);
|
| 1499 |
|
|
vp->stats.tx_window_errors += inb(ioaddr + 4);
|
| 1500 |
|
|
vp->stats.rx_fifo_errors += inb(ioaddr + 5);
|
| 1501 |
|
|
vp->stats.tx_packets += inb(ioaddr + 6);
|
| 1502 |
|
|
vp->stats.tx_packets += (inb(ioaddr + 9) & 0x30) << 4;
|
| 1503 |
|
|
/* Rx packets */ inb(ioaddr + 7);
|
| 1504 |
|
|
/* Must read to clear */
|
| 1505 |
|
|
/* Tx deferrals */ inb(ioaddr + 8);
|
| 1506 |
|
|
/* Don't bother with register 9, an extension of registers 6&7.
|
| 1507 |
|
|
If we do use the 6&7 values the atomic update assumption above
|
| 1508 |
|
|
is invalid. */
|
| 1509 |
|
|
inw(ioaddr + 10); /* Total Rx and Tx octets. */
|
| 1510 |
|
|
inw(ioaddr + 12);
|
| 1511 |
|
|
/* New: On the Vortex we must also clear the BadSSD counter. */
|
| 1512 |
|
|
EL3WINDOW(4);
|
| 1513 |
|
|
inb(ioaddr + 12);
|
| 1514 |
|
|
|
| 1515 |
|
|
/* We change back to window 7 (not 1) with the Vortex. */
|
| 1516 |
|
|
EL3WINDOW(7);
|
| 1517 |
|
|
return;
|
| 1518 |
|
|
}
|
| 1519 |
|
|
|
| 1520 |
|
|
/* This new version of set_rx_mode() supports v1.4 kernels.
|
| 1521 |
|
|
The Vortex chip has no documented multicast filter, so the only
|
| 1522 |
|
|
multicast setting is to receive all multicast frames. At least
|
| 1523 |
|
|
the chip has a very clean way to set the mode, unlike many others. */
|
| 1524 |
|
|
static void set_rx_mode(struct net_device *dev)
|
| 1525 |
|
|
{
|
| 1526 |
|
|
int ioaddr = dev->base_addr;
|
| 1527 |
|
|
short new_mode;
|
| 1528 |
|
|
|
| 1529 |
|
|
if (dev->flags & IFF_PROMISC) {
|
| 1530 |
|
|
if (corkscrew_debug > 3)
|
| 1531 |
|
|
printk("%s: Setting promiscuous mode.\n",
|
| 1532 |
|
|
dev->name);
|
| 1533 |
|
|
new_mode = SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm;
|
| 1534 |
|
|
} else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
|
| 1535 |
|
|
new_mode = SetRxFilter | RxStation | RxMulticast | RxBroadcast;
|
| 1536 |
|
|
} else
|
| 1537 |
|
|
new_mode = SetRxFilter | RxStation | RxBroadcast;
|
| 1538 |
|
|
|
| 1539 |
|
|
outw(new_mode, ioaddr + EL3_CMD);
|
| 1540 |
|
|
}
|
| 1541 |
|
|
|
| 1542 |
|
|
static void netdev_get_drvinfo(struct net_device *dev,
|
| 1543 |
|
|
struct ethtool_drvinfo *info)
|
| 1544 |
|
|
{
|
| 1545 |
|
|
strcpy(info->driver, DRV_NAME);
|
| 1546 |
|
|
strcpy(info->version, DRV_VERSION);
|
| 1547 |
|
|
sprintf(info->bus_info, "ISA 0x%lx", dev->base_addr);
|
| 1548 |
|
|
}
|
| 1549 |
|
|
|
| 1550 |
|
|
static u32 netdev_get_msglevel(struct net_device *dev)
|
| 1551 |
|
|
{
|
| 1552 |
|
|
return corkscrew_debug;
|
| 1553 |
|
|
}
|
| 1554 |
|
|
|
| 1555 |
|
|
static void netdev_set_msglevel(struct net_device *dev, u32 level)
|
| 1556 |
|
|
{
|
| 1557 |
|
|
corkscrew_debug = level;
|
| 1558 |
|
|
}
|
| 1559 |
|
|
|
| 1560 |
|
|
static const struct ethtool_ops netdev_ethtool_ops = {
|
| 1561 |
|
|
.get_drvinfo = netdev_get_drvinfo,
|
| 1562 |
|
|
.get_msglevel = netdev_get_msglevel,
|
| 1563 |
|
|
.set_msglevel = netdev_set_msglevel,
|
| 1564 |
|
|
};
|
| 1565 |
|
|
|
| 1566 |
|
|
|
| 1567 |
|
|
#ifdef MODULE
|
| 1568 |
|
|
void cleanup_module(void)
|
| 1569 |
|
|
{
|
| 1570 |
|
|
while (!list_empty(&root_corkscrew_dev)) {
|
| 1571 |
|
|
struct net_device *dev;
|
| 1572 |
|
|
struct corkscrew_private *vp;
|
| 1573 |
|
|
|
| 1574 |
|
|
vp = list_entry(root_corkscrew_dev.next,
|
| 1575 |
|
|
struct corkscrew_private, list);
|
| 1576 |
|
|
dev = vp->our_dev;
|
| 1577 |
|
|
unregister_netdev(dev);
|
| 1578 |
|
|
cleanup_card(dev);
|
| 1579 |
|
|
free_netdev(dev);
|
| 1580 |
|
|
}
|
| 1581 |
|
|
}
|
| 1582 |
|
|
#endif /* MODULE */
|
| 1583 |
|
|
|
| 1584 |
|
|
/*
|
| 1585 |
|
|
* Local variables:
|
| 1586 |
|
|
* compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c 3c515.c"
|
| 1587 |
|
|
* c-indent-level: 4
|
| 1588 |
|
|
* tab-width: 4
|
| 1589 |
|
|
* End:
|
| 1590 |
|
|
*/
|
