diff options
Diffstat (limited to 'drivers/net/3c59x.c')
| -rw-r--r-- | drivers/net/3c59x.c | 3326 |
1 files changed, 0 insertions, 3326 deletions
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c deleted file mode 100644 index 8cc22568ebd3..000000000000 --- a/drivers/net/3c59x.c +++ /dev/null @@ -1,3326 +0,0 @@ -/* EtherLinkXL.c: A 3Com EtherLink PCI III/XL ethernet driver for linux. */ -/* - Written 1996-1999 by Donald Becker. - - This software may be used and distributed according to the terms - of the GNU 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[] __devinitconst = - 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[] __devinitdata = { - {"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 DEFINE_PCI_DEVICE_TABLE(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, - must_free_region:1, /* Flag: if zero, Cardbus owns the I/O region */ - 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)->bus == &pci_bus_type) ? 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(flags); - (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev); - local_irq_restore(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 __devexit 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(dev->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 = __devexit_p(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 __devinit 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; - - 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) { - pci_disable_device(pdev); - rc = -ENOMEM; - goto out; - } - - rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq, - ent->driver_data, unit); - if (rc < 0) { - pci_iounmap(pdev, ioaddr); - pci_disable_device(pdev); - goto out; - } - - vortex_cards_found++; - -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_multicast_list = 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_multicast_list = 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 __devinit 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) { - pr_err(PFX "unable to allocate etherdev, aborting\n"); - 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) { - /* EISA resources already marked, so only PCI needs to do this here */ - /* Ignore return value, because Cardbus drivers already allocate for us */ - if (request_region(dev->base_addr, vci->io_size, print_name) != NULL) - vp->must_free_region = 1; - - /* enable bus-mastering if necessary */ - if (vci->flags & PCI_USES_MASTER) - pci_set_master(pdev); - - if (vci->drv_flags & IS_VORTEX) { - u8 pci_latency; - u8 new_latency = 248; - - /* Check the PCI latency value. On the 3c590 series the latency timer - must be set to the maximum value to avoid data corruption that occurs - when the timer expires during a transfer. This bug exists the Vortex - chip only. */ - pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency); - if (pci_latency < new_latency) { - 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_region; - - vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE); - vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE; - - /* if we are a PCI driver, we store info in pdev->driver_data - * instead of a module list */ - if (pdev) - pci_set_drvdata(pdev, dev); - 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]); - memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); - 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_warning(" *** 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_warning(" ***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(VORTEX_PCI(vp)); - acpi_set_WOL(dev); - } - retval = register_netdev(dev); - if (retval == 0) - return 0; - -free_ring: - pci_free_consistent(pdev, - sizeof(struct boom_rx_desc) * RX_RING_SIZE - + sizeof(struct boom_tx_desc) * TX_RING_SIZE, - vp->rx_ring, - vp->rx_ring_dma); -free_region: - if (vp->must_free_region) - release_region(dev->base_addr, vci->io_size); - 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_warning("%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 (!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(flags); - if (vp->full_bus_master_tx) - boomerang_interrupt(dev->irq, dev); - else - vortex_interrupt(dev->irq, dev); - local_irq_restore(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_warning("%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; - iowrite16(StartDMADown, ioaddr + EL3_CMD); - /* netif_wake_queue() will be called at the DMADone interrupt. */ - } else { - /* ... and the packet rounded to a doubleword. */ - iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); - dev_kfree_skb (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; - - 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_warning("%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) { - vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, - skb->len, PCI_DMA_TODEVICE)); - vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG); - } else { - int i; - - vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, - skb_headlen(skb), PCI_DMA_TODEVICE)); - 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]; - - vp->tx_ring[entry].frag[i+1].addr = - cpu_to_le32(pci_map_single(VORTEX_PCI(vp), - (void*)page_address(frag->page) + frag->page_offset, - frag->size, PCI_DMA_TODEVICE)); - - if (i == skb_shinfo(skb)->nr_frags-1) - vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG); - else - vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size); - } - } -#else - vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE)); - vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG); - vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded); -#endif - - spin_lock_irqsave(&vp->lock, flags); - /* Wait for the stall to complete. */ - issue_and_wait(dev, DownStall); - prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc)); - if (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 - } - iowrite16(DownUnstall, ioaddr + EL3_CMD); - spin_unlock_irqrestore(&vp->lock, flags); - return NETDEV_TX_OK; -} - -/* 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_warning("%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_warning("%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 = dev_alloc_skb(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 = dev_alloc_skb(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_warning("%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_warning("%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); - - strcpy(info->driver, DRV_NAME); - if (VORTEX_PCI(vp)) { - strcpy(info->bus_info, pci_name(VORTEX_PCI(vp))); - } else { - if (VORTEX_EISA(vp)) - strcpy(info->bus_info, dev_name(vp->gendev)); - else - sprintf(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, -}; - -#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 __devexit 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(VORTEX_PCI(vp), vp->cb_fn_base); - - unregister_netdev(dev); - - 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)); - pci_disable_device(VORTEX_PCI(vp)); - } - /* Should really use issue_and_wait() here */ - iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14), - vp->ioaddr + EL3_CMD); - - pci_iounmap(VORTEX_PCI(vp), 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); - if (vp->must_free_region) - release_region(dev->base_addr, vp->io_size); - free_netdev(dev); -} - - -static struct pci_driver vortex_driver = { - .name = "3c59x", - .probe = vortex_init_one, - .remove = __devexit_p(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) -{ - struct vortex_private *vp; - void __iomem *ioaddr; - -#ifdef CONFIG_EISA - /* Take care of the EISA devices */ - eisa_driver_unregister(&vortex_eisa_driver); -#endif - - if (compaq_net_device) { - vp = netdev_priv(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); |
