--- /dev/null
+/* EtherLinkXL.c: A 3Com EtherLink PCI III/XL ethernet driver for linux. */
+/*
+ Written 1996-1999 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ This driver is for the 3Com "Vortex" and "Boomerang" series ethercards.
+ Members of the series include Fast EtherLink 3c590/3c592/3c595/3c597
+ and the EtherLink XL 3c900 and 3c905 cards.
+
+ Problem reports and questions should be directed to
+ vortex@scyld.com
+
+ The author may be reached as becker@scyld.com, or C/O
+ Scyld Computing Corporation
+ 410 Severn Ave., Suite 210
+ Annapolis MD 21403
+
+*/
+
+/*
+ * FIXME: This driver _could_ support MTU changing, but doesn't. See Don's hamachi.c implementation
+ * as well as other drivers
+ *
+ * NOTE: If you make 'vortex_debug' a constant (#define vortex_debug 0) the driver shrinks by 2k
+ * due to dead code elimination. There will be some performance benefits from this due to
+ * elimination of all the tests and reduced cache footprint.
+ */
+
+
+#define DRV_NAME "3c59x"
+
+
+
+/* A few values that may be tweaked. */
+/* Keep the ring sizes a power of two for efficiency. */
+#define TX_RING_SIZE 16
+#define RX_RING_SIZE 32
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
+
+/* "Knobs" that adjust features and parameters. */
+/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
+ Setting to > 1512 effectively disables this feature. */
+#ifndef __arm__
+static int rx_copybreak = 200;
+#else
+/* ARM systems perform better by disregarding the bus-master
+ transfer capability of these cards. -- rmk */
+static int rx_copybreak = 1513;
+#endif
+/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
+static const int mtu = 1500;
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static int max_interrupt_work = 32;
+/* Tx timeout interval (millisecs) */
+static int watchdog = 5000;
+
+/* Allow aggregation of Tx interrupts. Saves CPU load at the cost
+ * of possible Tx stalls if the system is blocking interrupts
+ * somewhere else. Undefine this to disable.
+ */
+#define tx_interrupt_mitigation 1
+
+/* Put out somewhat more debugging messages. (0: no msg, 1 minimal .. 6). */
+#define vortex_debug debug
+#ifdef VORTEX_DEBUG
+static int vortex_debug = VORTEX_DEBUG;
+#else
+static int vortex_debug = 1;
+#endif
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/in.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/mii.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/ethtool.h>
+#include <linux/highmem.h>
+#include <linux/eisa.h>
+#include <linux/bitops.h>
+#include <linux/jiffies.h>
+#include <linux/gfp.h>
+#include <asm/irq.h> /* For nr_irqs only. */
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+/* Kernel compatibility defines, some common to David Hinds' PCMCIA package.
+ This is only in the support-all-kernels source code. */
+
+#define RUN_AT(x) (jiffies + (x))
+
+#include <linux/delay.h>
+
+
+static const char version[] =
+ DRV_NAME ": Donald Becker and others.\n";
+
+MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
+MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver ");
+MODULE_LICENSE("GPL");
+
+
+/* Operational parameter that usually are not changed. */
+
+/* The Vortex size is twice that of the original EtherLinkIII series: the
+ runtime register window, window 1, is now always mapped in.
+ The Boomerang size is twice as large as the Vortex -- it has additional
+ bus master control registers. */
+#define VORTEX_TOTAL_SIZE 0x20
+#define BOOMERANG_TOTAL_SIZE 0x40
+
+/* Set iff a MII transceiver on any interface requires mdio preamble.
+ This only set with the original DP83840 on older 3c905 boards, so the extra
+ code size of a per-interface flag is not worthwhile. */
+static char mii_preamble_required;
+
+#define PFX DRV_NAME ": "
+
+
+
+/*
+ Theory of Operation
+
+I. Board Compatibility
+
+This device driver is designed for the 3Com FastEtherLink and FastEtherLink
+XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs
+versions of the FastEtherLink cards. The supported product IDs are
+ 3c590, 3c592, 3c595, 3c597, 3c900, 3c905
+
+The related ISA 3c515 is supported with a separate driver, 3c515.c, included
+with the kernel source or available from
+ cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html
+
+II. Board-specific settings
+
+PCI bus devices are configured by the system at boot time, so no jumpers
+need to be set on the board. The system BIOS should be set to assign the
+PCI INTA signal to an otherwise unused system IRQ line.
+
+The EEPROM settings for media type and forced-full-duplex are observed.
+The EEPROM media type should be left at the default "autoselect" unless using
+10base2 or AUI connections which cannot be reliably detected.
+
+III. Driver operation
+
+The 3c59x series use an interface that's very similar to the previous 3c5x9
+series. The primary interface is two programmed-I/O FIFOs, with an
+alternate single-contiguous-region bus-master transfer (see next).
+
+The 3c900 "Boomerang" series uses a full-bus-master interface with separate
+lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet,
+DEC Tulip and Intel Speedo3. The first chip version retains a compatible
+programmed-I/O interface that has been removed in 'B' and subsequent board
+revisions.
+
+One extension that is advertised in a very large font is that the adapters
+are capable of being bus masters. On the Vortex chip this capability was
+only for a single contiguous region making it far less useful than the full
+bus master capability. There is a significant performance impact of taking
+an extra interrupt or polling for the completion of each transfer, as well
+as difficulty sharing the single transfer engine between the transmit and
+receive threads. Using DMA transfers is a win only with large blocks or
+with the flawed versions of the Intel Orion motherboard PCI controller.
+
+The Boomerang chip's full-bus-master interface is useful, and has the
+currently-unused advantages over other similar chips that queued transmit
+packets may be reordered and receive buffer groups are associated with a
+single frame.
+
+With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme.
+Rather than a fixed intermediate receive buffer, this scheme allocates
+full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as
+the copying breakpoint: it is chosen to trade-off the memory wasted by
+passing the full-sized skbuff to the queue layer for all frames vs. the
+copying cost of copying a frame to a correctly-sized skbuff.
+
+IIIC. Synchronization
+The driver runs as two independent, single-threaded flows of control. One
+is the send-packet routine, which enforces single-threaded use by the
+dev->tbusy flag. The other thread is the interrupt handler, which is single
+threaded by the hardware and other software.
+
+IV. Notes
+
+Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development
+3c590, 3c595, and 3c900 boards.
+The name "Vortex" is the internal 3Com project name for the PCI ASIC, and
+the EISA version is called "Demon". According to Terry these names come
+from rides at the local amusement park.
+
+The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes!
+This driver only supports ethernet packets because of the skbuff allocation
+limit of 4K.
+*/
+
+/* This table drives the PCI probe routines. It's mostly boilerplate in all
+ of the drivers, and will likely be provided by some future kernel.
+*/
+enum pci_flags_bit {
+ PCI_USES_MASTER=4,
+};
+
+enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8,
+ EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */
+ HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100,
+ INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800,
+ EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000,
+ EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, };
+
+enum vortex_chips {
+ CH_3C590 = 0,
+ CH_3C592,
+ CH_3C597,
+ CH_3C595_1,
+ CH_3C595_2,
+
+ CH_3C595_3,
+ CH_3C900_1,
+ CH_3C900_2,
+ CH_3C900_3,
+ CH_3C900_4,
+
+ CH_3C900_5,
+ CH_3C900B_FL,
+ CH_3C905_1,
+ CH_3C905_2,
+ CH_3C905B_TX,
+ CH_3C905B_1,
+
+ CH_3C905B_2,
+ CH_3C905B_FX,
+ CH_3C905C,
+ CH_3C9202,
+ CH_3C980,
+ CH_3C9805,
+
+ CH_3CSOHO100_TX,
+ CH_3C555,
+ CH_3C556,
+ CH_3C556B,
+ CH_3C575,
+
+ CH_3C575_1,
+ CH_3CCFE575,
+ CH_3CCFE575CT,
+ CH_3CCFE656,
+ CH_3CCFEM656,
+
+ CH_3CCFEM656_1,
+ CH_3C450,
+ CH_3C920,
+ CH_3C982A,
+ CH_3C982B,
+
+ CH_905BT4,
+ CH_920B_EMB_WNM,
+};
+
+
+/* note: this array directly indexed by above enums, and MUST
+ * be kept in sync with both the enums above, and the PCI device
+ * table below
+ */
+static struct vortex_chip_info {
+ const char *name;
+ int flags;
+ int drv_flags;
+ int io_size;
+} vortex_info_tbl[] = {
+ {"3c590 Vortex 10Mbps",
+ PCI_USES_MASTER, IS_VORTEX, 32, },
+ {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
+ PCI_USES_MASTER, IS_VORTEX, 32, },
+ {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
+ PCI_USES_MASTER, IS_VORTEX, 32, },
+ {"3c595 Vortex 100baseTx",
+ PCI_USES_MASTER, IS_VORTEX, 32, },
+ {"3c595 Vortex 100baseT4",
+ PCI_USES_MASTER, IS_VORTEX, 32, },
+
+ {"3c595 Vortex 100base-MII",
+ PCI_USES_MASTER, IS_VORTEX, 32, },
+ {"3c900 Boomerang 10baseT",
+ PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
+ {"3c900 Boomerang 10Mbps Combo",
+ PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
+ {"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */
+ PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
+ {"3c900 Cyclone 10Mbps Combo",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
+
+ {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */
+ PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
+ {"3c900B-FL Cyclone 10base-FL",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
+ {"3c905 Boomerang 100baseTx",
+ PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
+ {"3c905 Boomerang 100baseT4",
+ PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
+ {"3C905B-TX Fast Etherlink XL PCI",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
+ {"3c905B Cyclone 100baseTx",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
+
+ {"3c905B Cyclone 10/100/BNC",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
+ {"3c905B-FX Cyclone 100baseFx",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
+ {"3c905C Tornado",
+ PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
+ {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)",
+ PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, },
+ {"3c980 Cyclone",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
+
+ {"3c980C Python-T",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
+ {"3cSOHO100-TX Hurricane",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
+ {"3c555 Laptop Hurricane",
+ PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, },
+ {"3c556 Laptop Tornado",
+ PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR|
+ HAS_HWCKSM, 128, },
+ {"3c556B Laptop Hurricane",
+ PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR|
+ WNO_XCVR_PWR|HAS_HWCKSM, 128, },
+
+ {"3c575 [Megahertz] 10/100 LAN CardBus",
+ PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
+ {"3c575 Boomerang CardBus",
+ PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
+ {"3CCFE575BT Cyclone CardBus",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|
+ INVERT_LED_PWR|HAS_HWCKSM, 128, },
+ {"3CCFE575CT Tornado CardBus",
+ PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
+ MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
+ {"3CCFE656 Cyclone CardBus",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
+ INVERT_LED_PWR|HAS_HWCKSM, 128, },
+
+ {"3CCFEM656B Cyclone+Winmodem CardBus",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
+ INVERT_LED_PWR|HAS_HWCKSM, 128, },
+ {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */
+ PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
+ MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
+ {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */
+ PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
+ {"3c920 Tornado",
+ PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
+ {"3c982 Hydra Dual Port A",
+ PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
+
+ {"3c982 Hydra Dual Port B",
+ PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
+ {"3c905B-T4",
+ PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
+ {"3c920B-EMB-WNM Tornado",
+ PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
+
+ {NULL,}, /* NULL terminated list. */
+};
+
+
+static const struct pci_device_id vortex_pci_tbl[] = {
+ { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
+ { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 },
+ { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 },
+ { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 },
+ { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 },
+
+ { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 },
+ { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 },
+ { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 },
+ { 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
+ { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 },
+
+ { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 },
+ { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL },
+ { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 },
+ { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 },
+ { 0x10B7, 0x9054, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_TX },
+ { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 },
+
+ { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 },
+ { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX },
+ { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C },
+ { 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 },
+ { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 },
+ { 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 },
+
+ { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX },
+ { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 },
+ { 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 },
+ { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B },
+ { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 },
+
+ { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 },
+ { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 },
+ { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT },
+ { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 },
+ { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 },
+
+ { 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 },
+ { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 },
+ { 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 },
+ { 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A },
+ { 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B },
+
+ { 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 },
+ { 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM },
+
+ {0,} /* 0 terminated list. */
+};
+MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
+
+
+/* Operational definitions.
+ These are not used by other compilation units and thus are not
+ exported in a ".h" file.
+
+ First the windows. There are eight register windows, with the command
+ and status registers available in each.
+ */
+#define EL3_CMD 0x0e
+#define EL3_STATUS 0x0e
+
+/* The top five bits written to EL3_CMD are a command, the lower
+ 11 bits are the parameter, if applicable.
+ Note that 11 parameters bits was fine for ethernet, but the new chip
+ can handle FDDI length frames (~4500 octets) and now parameters count
+ 32-bit 'Dwords' rather than octets. */
+
+enum vortex_cmd {
+ TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
+ RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11,
+ UpStall = 6<<11, UpUnstall = (6<<11)+1,
+ DownStall = (6<<11)+2, DownUnstall = (6<<11)+3,
+ RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
+ FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
+ SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
+ SetTxThreshold = 18<<11, SetTxStart = 19<<11,
+ StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11,
+ StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,};
+
+/* The SetRxFilter command accepts the following classes: */
+enum RxFilter {
+ RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
+
+/* Bits in the general status register. */
+enum vortex_status {
+ IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004,
+ TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
+ IntReq = 0x0040, StatsFull = 0x0080,
+ DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10,
+ DMAInProgress = 1<<11, /* DMA controller is still busy.*/
+ CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/
+};
+
+/* Register window 1 offsets, the window used in normal operation.
+ On the Vortex this window is always mapped at offsets 0x10-0x1f. */
+enum Window1 {
+ TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
+ RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B,
+ TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
+};
+enum Window0 {
+ Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
+ Wn0EepromData = 12, /* Window 0: EEPROM results register. */
+ IntrStatus=0x0E, /* Valid in all windows. */
+};
+enum Win0_EEPROM_bits {
+ EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
+ EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
+ EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
+};
+/* EEPROM locations. */
+enum eeprom_offset {
+ PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3,
+ EtherLink3ID=7, IFXcvrIO=8, IRQLine=9,
+ NodeAddr01=10, NodeAddr23=11, NodeAddr45=12,
+ DriverTune=13, Checksum=15};
+
+enum Window2 { /* Window 2. */
+ Wn2_ResetOptions=12,
+};
+enum Window3 { /* Window 3: MAC/config bits. */
+ Wn3_Config=0, Wn3_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_rx, 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. */
+ struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */
+ int options; /* User-settable misc. driver options. */
+ unsigned int media_override:4, /* Passed-in media type. */
+ default_media:4, /* Read from the EEPROM/Wn3_Config. */
+ full_duplex:1, 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(unsigned long arg);
+static void rx_oom_timer(unsigned long arg);
+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_interrupt(int irq, void *dev_id);
+static irqreturn_t boomerang_interrupt(int irq, void *dev_id);
+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);
+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(compaq_ioaddr, int, 0);
+module_param(compaq_irq, int, 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)
+{
+ struct vortex_private *vp = netdev_priv(dev);
+ unsigned long flags;
+ local_irq_save_nort(flags);
+ (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev);
+ local_irq_restore_nort(flags);
+}
+#endif
+
+#ifdef CONFIG_PM
+
+static int vortex_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *ndev = pci_get_drvdata(pdev);
+
+ 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 pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *ndev = pci_get_drvdata(pdev);
+ 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 struct eisa_device_id vortex_eisa_ids[] = {
+ { "TCM5920", CH_3C592 },
+ { "TCM5970", CH_3C597 },
+ { "" }
+};
+MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids);
+
+static int __init 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_change_mtu = eth_change_mtu,
+ .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_change_mtu = eth_change_mtu,
+ .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/vortex.txt\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 = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
+ + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
+ &vp->rx_ring_dma);
+ retval = -ENOMEM;
+ if (!vp->rx_ring)
+ 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:
+ pci_free_consistent(pdev,
+ sizeof(struct boom_rx_desc) * RX_RING_SIZE
+ + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
+ vp->rx_ring,
+ vp->rx_ring_dma);
+free_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_reg1, 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);
+ }
+
+ init_timer(&vp->timer);
+ vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
+ vp->timer.data = (unsigned long)dev;
+ vp->timer.function = vortex_timer; /* timer handler */
+ add_timer(&vp->timer);
+
+ init_timer(&vp->rx_oom_timer);
+ vp->rx_oom_timer.data = (unsigned long)dev;
+ vp->rx_oom_timer.function = rx_oom_timer;
+
+ if (vortex_debug > 1)
+ 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) {
+ mii_reg1 = 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 = vp->dirty_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);
+err_out:
+ return err;
+}
+
+static int
+vortex_open(struct net_device *dev)
+{
+ struct vortex_private *vp = netdev_priv(dev);
+ int i;
+ int retval;
+
+ /* Use the now-standard shared IRQ implementation. */
+ if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
+ boomerang_interrupt : vortex_interrupt, 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 */
+ vp->rx_ring[i].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE));
+ }
+ if (i != RX_RING_SIZE) {
+ int j;
+ pr_emerg("%s: no memory for rx ring\n", dev->name);
+ for (j = 0; j < i; j++) {
+ if (vp->rx_skbuff[j]) {
+ dev_kfree_skb(vp->rx_skbuff[j]);
+ vp->rx_skbuff[j] = NULL;
+ }
+ }
+ retval = -ENOMEM;
+ goto err_free_irq;
+ }
+ /* 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_irq:
+ 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(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct vortex_private *vp = netdev_priv(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)
+{
+ 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. */
+ {
+ /*
+ * Block interrupts because vortex_interrupt does a bare spin_lock()
+ */
+ unsigned long flags;
+ local_irq_save_nort(flags);
+ if (vp->full_bus_master_tx)
+ boomerang_interrupt(dev->irq, dev);
+ else
+ vortex_interrupt(dev->irq, dev);
+ local_irq_restore_nort(flags);
+ }
+ }
+
+ 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);
+ 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);
+ }
+
+ /* Issue Tx Enable */
+ iowrite16(TxEnable, ioaddr + EL3_CMD);
+ dev->trans_start = jiffies; /* 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/vortex.txt\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;
+
+ /* 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 = pci_map_single(VORTEX_PCI(vp), skb->data, len,
+ PCI_DMA_TODEVICE);
+ 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);
+ }
+ }
+
+
+ /* 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;
+ 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 = pci_map_single(VORTEX_PCI(vp), skb->data, skb->len,
+ PCI_DMA_TODEVICE);
+ if (dma_mapping_error(&VORTEX_PCI(vp)->dev, 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 = pci_map_single(VORTEX_PCI(vp), skb->data,
+ skb_headlen(skb), PCI_DMA_TODEVICE);
+ if (dma_mapping_error(&VORTEX_PCI(vp)->dev, 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(&VORTEX_PCI(vp)->dev, frag,
+ 0,
+ frag->size,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) {
+ for(i = i-1; i >= 0; i--)
+ dma_unmap_page(&VORTEX_PCI(vp)->dev,
+ 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);
+
+ pci_unmap_single(VORTEX_PCI(vp),
+ le32_to_cpu(vp->tx_ring[entry].frag[0].addr),
+ le32_to_cpu(vp->tx_ring[entry].frag[0].length),
+ PCI_DMA_TODEVICE);
+
+ 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 = pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE);
+ if (dma_mapping_error(&VORTEX_PCI(vp)->dev, 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++;
+ 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(&VORTEX_PCI(vp)->dev, "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, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+ struct vortex_private *vp = netdev_priv(dev);
+ void __iomem *ioaddr;
+ int status;
+ int work_done = max_interrupt_work;
+ int handled = 0;
+
+ ioaddr = vp->ioaddr;
+ spin_lock(&vp->lock);
+
+ 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. */
+ pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
+ dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
+ if (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));
+
+ spin_unlock(&vp->window_lock);
+
+ if (vortex_debug > 4)
+ pr_debug("%s: exiting interrupt, status %4.4x.\n",
+ dev->name, status);
+handler_exit:
+ spin_unlock(&vp->lock);
+ 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, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+ struct vortex_private *vp = netdev_priv(dev);
+ void __iomem *ioaddr;
+ int status;
+ int work_done = max_interrupt_work;
+
+ ioaddr = vp->ioaddr;
+
+
+ /*
+ * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
+ * and boomerang_start_xmit
+ */
+ spin_lock(&vp->lock);
+ 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 */
+
+ 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;
+ for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
+ pci_unmap_single(VORTEX_PCI(vp),
+ le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
+ le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
+ PCI_DMA_TODEVICE);
+#else
+ pci_unmap_single(VORTEX_PCI(vp),
+ le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
+#endif
+ dev_kfree_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);
+
+ if (vortex_debug > 4)
+ pr_debug("%s: exiting interrupt, status %4.4x.\n",
+ dev->name, status);
+handler_exit:
+ vp->handling_irq = 0;
+ spin_unlock(&vp->lock);
+ return IRQ_HANDLED;
+}
+
+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 = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
+ pkt_len, PCI_DMA_FROMDEVICE);
+ iowrite32(dma, ioaddr + Wn7_MasterAddr);
+ iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
+ iowrite16(StartDMAUp, ioaddr + EL3_CMD);
+ while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
+ ;
+ pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
+ } 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 = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
+
+ 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;
+ 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 */
+ pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
+ /* 'skb_put()' points to the start of sk_buff data area. */
+ memcpy(skb_put(skb, pkt_len),
+ vp->rx_skbuff[entry]->data,
+ pkt_len);
+ pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
+ vp->rx_copy++;
+ } else {
+ /* Pass up the skbuff already on the Rx ring. */
+ skb = vp->rx_skbuff[entry];
+ vp->rx_skbuff[entry] = NULL;
+ skb_put(skb, pkt_len);
+ pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
+ vp->rx_nocopy++;
+ }
+ skb->protocol = eth_type_trans(skb, dev);
+ { /* Use hardware checksum info. */
+ int csum_bits = rx_status & 0xee000000;
+ if (csum_bits &&
+ (csum_bits == (IPChksumValid | TCPChksumValid) ||
+ csum_bits == (IPChksumValid | UDPChksumValid))) {
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ vp->rx_csumhits++;
+ }
+ }
+ netif_rx(skb);
+ dev->stats.rx_packets++;
+ }
+ entry = (++vp->cur_rx) % RX_RING_SIZE;
+ }
+ /* Refill the Rx ring buffers. */
+ for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
+ struct sk_buff *skb;
+ entry = vp->dirty_rx % RX_RING_SIZE;
+ if (vp->rx_skbuff[entry] == NULL) {
+ skb = netdev_alloc_skb_ip_align(dev, PKT_BUF_SZ);
+ if (skb == NULL) {
+ static unsigned long last_jif;
+ if (time_after(jiffies, last_jif + 10 * HZ)) {
+ pr_warn("%s: memory shortage\n",
+ dev->name);
+ last_jif = jiffies;
+ }
+ if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
+ mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
+ break; /* Bad news! */
+ }
+
+ vp->rx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE));
+ vp->rx_skbuff[entry] = skb;
+ }
+ vp->rx_ring[entry].status = 0; /* Clear complete bit. */
+ iowrite16(UpUnstall, ioaddr + EL3_CMD);
+ }
+ return 0;
+}
+
+/*
+ * If we've hit a total OOM refilling the Rx ring we poll once a second
+ * for some memory. Otherwise there is no way to restart the rx process.
+ */
+static void
+rx_oom_timer(unsigned long arg)
+{
+ struct net_device *dev = (struct net_device *)arg;
+ struct vortex_private *vp = netdev_priv(dev);
+
+ spin_lock_irq(&vp->lock);
+ if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
+ boomerang_rx(dev);
+ if (vortex_debug > 1) {
+ pr_debug("%s: rx_oom_timer %s\n", dev->name,
+ ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
+ }
+ spin_unlock_irq(&vp->lock);
+}
+
+static void
+vortex_down(struct net_device *dev, int final_down)
+{
+ struct vortex_private *vp = netdev_priv(dev);
+ void __iomem *ioaddr = vp->ioaddr;
+
+ netif_stop_queue (dev);
+
+ del_timer_sync(&vp->rx_oom_timer);
+ 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]) {
+ pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
+ PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(vp->rx_skbuff[i]);
+ vp->rx_skbuff[i] = 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++)
+ pci_unmap_single(VORTEX_PCI(vp),
+ le32_to_cpu(vp->tx_ring[i].frag[k].addr),
+ le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
+ PCI_DMA_TODEVICE);
+#else
+ pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
+#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_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct vortex_private *vp = netdev_priv(dev);
+
+ return mii_ethtool_gset(&vp->mii, cmd);
+}
+
+static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct vortex_private *vp = netdev_priv(dev);
+
+ return mii_ethtool_sset(&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_settings = vortex_get_settings,
+ .set_settings = vortex_set_settings,
+ .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,
+};
+
+#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 defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+/* 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
+#define MDIO_DIR_WRITE 0x04
+#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
+#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
+#define MDIO_DATA_READ 0x02
+#define MDIO_ENB_IN 0x00
+
+/* Generate the preamble required for initial synchronization and
+ a few older transceivers. */
+static void mdio_sync(struct vortex_private *vp, int bits)
+{
+ /* Establish sync by sending at least 32 logic ones. */
+ while (-- bits >= 0) {
+ window_write16(vp, MDIO_DATA_WRITE1, 4, Wn4_PhysicalMgmt);
+ mdio_delay(vp);
+ window_write16(vp, MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK,
+ 4, Wn4_PhysicalMgmt);
+ mdio_delay(vp);
+ }
+}
+
+static int mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ int i;
+ struct vortex_private *vp = netdev_priv(dev);
+ int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
+ unsigned int retval = 0;
+
+ spin_lock_bh(&vp->mii_lock);
+
+ if (mii_preamble_required)
+ 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;
+ window_write16(vp, dataval, 4, Wn4_PhysicalMgmt);
+ mdio_delay(vp);
+ window_write16(vp, dataval | MDIO_SHIFT_CLK,
+ 4, Wn4_PhysicalMgmt);
+ mdio_delay(vp);
+ }
+ /* 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);
+ 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);
+
+ pci_free_consistent(pdev,
+ sizeof(struct boom_rx_desc) * RX_RING_SIZE
+ + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
+ vp->rx_ring,
+ vp->rx_ring_dma);
+
+ 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);
Code Review / kvmfornfv.git / blobdiff