| /* 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 <linux/uaccess.h> |
| |
| /* Kernel compatibility defines, some common to David Hinds' PCMCIA package. |
| This is only in the support-all-kernels source code. */ |
| |
| #define RUN_AT(x) (jiffies + (x)) |
| |
| #include <linux/delay.h> |
| |
| |
| static const char version[] = |
| DRV_NAME ": Donald Becker and others.\n"; |
| |
| MODULE_AUTHOR("Donald Becker <becker@scyld.com>"); |
| MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver "); |
| MODULE_LICENSE("GPL"); |
| |
| |
| /* Operational parameter that usually are not changed. */ |
| |
| /* The Vortex size is twice that of the original EtherLinkIII series: the |
| runtime register window, window 1, is now always mapped in. |
| The Boomerang size is twice as large as the Vortex -- it has additional |
| bus master control registers. */ |
| #define VORTEX_TOTAL_SIZE 0x20 |
| #define BOOMERANG_TOTAL_SIZE 0x40 |
| |
| /* Set iff a MII transceiver on any interface requires mdio preamble. |
| This only set with the original DP83840 on older 3c905 boards, so the extra |
| code size of a per-interface flag is not worthwhile. */ |
| static char mii_preamble_required; |
| |
| #define PFX DRV_NAME ": " |
| |
| |
| |
| /* |
| Theory of Operation |
| |
| I. Board Compatibility |
| |
| This device driver is designed for the 3Com FastEtherLink and FastEtherLink |
| XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs |
| versions of the FastEtherLink cards. The supported product IDs are |
| 3c590, 3c592, 3c595, 3c597, 3c900, 3c905 |
| |
| The related ISA 3c515 is supported with a separate driver, 3c515.c, included |
| with the kernel source or available from |
| cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html |
| |
| II. Board-specific settings |
| |
| PCI bus devices are configured by the system at boot time, so no jumpers |
| need to be set on the board. The system BIOS should be set to assign the |
| PCI INTA signal to an otherwise unused system IRQ line. |
| |
| The EEPROM settings for media type and forced-full-duplex are observed. |
| The EEPROM media type should be left at the default "autoselect" unless using |
| 10base2 or AUI connections which cannot be reliably detected. |
| |
| III. Driver operation |
| |
| The 3c59x series use an interface that's very similar to the previous 3c5x9 |
| series. The primary interface is two programmed-I/O FIFOs, with an |
| alternate single-contiguous-region bus-master transfer (see next). |
| |
| The 3c900 "Boomerang" series uses a full-bus-master interface with separate |
| lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet, |
| DEC Tulip and Intel Speedo3. The first chip version retains a compatible |
| programmed-I/O interface that has been removed in 'B' and subsequent board |
| revisions. |
| |
| One extension that is advertised in a very large font is that the adapters |
| are capable of being bus masters. On the Vortex chip this capability was |
| only for a single contiguous region making it far less useful than the full |
| bus master capability. There is a significant performance impact of taking |
| an extra interrupt or polling for the completion of each transfer, as well |
| as difficulty sharing the single transfer engine between the transmit and |
| receive threads. Using DMA transfers is a win only with large blocks or |
| with the flawed versions of the Intel Orion motherboard PCI controller. |
| |
| The Boomerang chip's full-bus-master interface is useful, and has the |
| currently-unused advantages over other similar chips that queued transmit |
| packets may be reordered and receive buffer groups are associated with a |
| single frame. |
| |
| With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme. |
| Rather than a fixed intermediate receive buffer, this scheme allocates |
| full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as |
| the copying breakpoint: it is chosen to trade-off the memory wasted by |
| passing the full-sized skbuff to the queue layer for all frames vs. the |
| copying cost of copying a frame to a correctly-sized skbuff. |
| |
| IIIC. Synchronization |
| The driver runs as two independent, single-threaded flows of control. One |
| is the send-packet routine, which enforces single-threaded use by the |
| dev->tbusy flag. The other thread is the interrupt handler, which is single |
| threaded by the hardware and other software. |
| |
| IV. Notes |
| |
| Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development |
| 3c590, 3c595, and 3c900 boards. |
| The name "Vortex" is the internal 3Com project name for the PCI ASIC, and |
| the EISA version is called "Demon". According to Terry these names come |
| from rides at the local amusement park. |
| |
| The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes! |
| This driver only supports ethernet packets because of the skbuff allocation |
| limit of 4K. |
| */ |
| |
| /* This table drives the PCI probe routines. It's mostly boilerplate in all |
| of the drivers, and will likely be provided by some future kernel. |
| */ |
| enum pci_flags_bit { |
| PCI_USES_MASTER=4, |
| }; |
| |
| enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8, |
| EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */ |
| HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100, |
| INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800, |
| EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000, |
| EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, }; |
| |
| enum vortex_chips { |
| CH_3C590 = 0, |
| CH_3C592, |
| CH_3C597, |
| CH_3C595_1, |
| CH_3C595_2, |
| |
| CH_3C595_3, |
| CH_3C900_1, |
| CH_3C900_2, |
| CH_3C900_3, |
| CH_3C900_4, |
| |
| CH_3C900_5, |
| CH_3C900B_FL, |
| CH_3C905_1, |
| CH_3C905_2, |
| CH_3C905B_TX, |
| CH_3C905B_1, |
| |
| CH_3C905B_2, |
| CH_3C905B_FX, |
| CH_3C905C, |
| CH_3C9202, |
| CH_3C980, |
| CH_3C9805, |
| |
| CH_3CSOHO100_TX, |
| CH_3C555, |
| CH_3C556, |
| CH_3C556B, |
| CH_3C575, |
| |
| CH_3C575_1, |
| CH_3CCFE575, |
| CH_3CCFE575CT, |
| CH_3CCFE656, |
| CH_3CCFEM656, |
| |
| CH_3CCFEM656_1, |
| CH_3C450, |
| CH_3C920, |
| CH_3C982A, |
| CH_3C982B, |
| |
| CH_905BT4, |
| CH_920B_EMB_WNM, |
| }; |
| |
| |
| /* note: this array directly indexed by above enums, and MUST |
| * be kept in sync with both the enums above, and the PCI device |
| * table below |
| */ |
| static struct vortex_chip_info { |
| const char *name; |
| int flags; |
| int drv_flags; |
| int io_size; |
| } vortex_info_tbl[] = { |
| {"3c590 Vortex 10Mbps", |
| PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */ |
| PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */ |
| PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c595 Vortex 100baseTx", |
| PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c595 Vortex 100baseT4", |
| PCI_USES_MASTER, IS_VORTEX, 32, }, |
| |
| {"3c595 Vortex 100base-MII", |
| PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c900 Boomerang 10baseT", |
| PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, }, |
| {"3c900 Boomerang 10Mbps Combo", |
| PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, }, |
| {"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */ |
| PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| {"3c900 Cyclone 10Mbps Combo", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| |
| {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */ |
| PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| {"3c900B-FL Cyclone 10base-FL", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| {"3c905 Boomerang 100baseTx", |
| PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, }, |
| {"3c905 Boomerang 100baseT4", |
| PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, }, |
| {"3C905B-TX Fast Etherlink XL PCI", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| {"3c905B Cyclone 100baseTx", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| |
| {"3c905B Cyclone 10/100/BNC", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3c905B-FX Cyclone 100baseFx", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| {"3c905C Tornado", |
| PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)", |
| PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, }, |
| {"3c980 Cyclone", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| |
| {"3c980C Python-T", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3cSOHO100-TX Hurricane", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| {"3c555 Laptop Hurricane", |
| PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, }, |
| {"3c556 Laptop Tornado", |
| PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR| |
| HAS_HWCKSM, 128, }, |
| {"3c556B Laptop Hurricane", |
| PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR| |
| WNO_XCVR_PWR|HAS_HWCKSM, 128, }, |
| |
| {"3c575 [Megahertz] 10/100 LAN CardBus", |
| PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, }, |
| {"3c575 Boomerang CardBus", |
| PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, }, |
| {"3CCFE575BT Cyclone CardBus", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT| |
| INVERT_LED_PWR|HAS_HWCKSM, 128, }, |
| {"3CCFE575CT Tornado CardBus", |
| PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR| |
| MAX_COLLISION_RESET|HAS_HWCKSM, 128, }, |
| {"3CCFE656 Cyclone CardBus", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR| |
| INVERT_LED_PWR|HAS_HWCKSM, 128, }, |
| |
| {"3CCFEM656B Cyclone+Winmodem CardBus", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR| |
| INVERT_LED_PWR|HAS_HWCKSM, 128, }, |
| {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */ |
| PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR| |
| MAX_COLLISION_RESET|HAS_HWCKSM, 128, }, |
| {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */ |
| PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3c920 Tornado", |
| PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3c982 Hydra Dual Port A", |
| PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, }, |
| |
| {"3c982 Hydra Dual Port B", |
| PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, }, |
| {"3c905B-T4", |
| PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| {"3c920B-EMB-WNM Tornado", |
| PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, }, |
| |
| {NULL,}, /* NULL terminated list. */ |
| }; |
| |
| |
| static const struct pci_device_id vortex_pci_tbl[] = { |
| { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 }, |
| { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 }, |
| { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 }, |
| { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 }, |
| { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 }, |
| |
| { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 }, |
| { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 }, |
| { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 }, |
| { 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 }, |
| { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 }, |
| |
| { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 }, |
| { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL }, |
| { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 }, |
| { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 }, |
| { 0x10B7, 0x9054, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_TX }, |
| { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 }, |
| |
| { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 }, |
| { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX }, |
| { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C }, |
| { 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 }, |
| { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 }, |
| { 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 }, |
| |
| { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX }, |
| { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 }, |
| { 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 }, |
| { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B }, |
| { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 }, |
| |
| { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 }, |
| { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 }, |
| { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT }, |
| { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 }, |
| { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 }, |
| |
| { 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 }, |
| { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 }, |
| { 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 }, |
| { 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A }, |
| { 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B }, |
| |
| { 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 }, |
| { 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM }, |
| |
| {0,} /* 0 terminated list. */ |
| }; |
| MODULE_DEVICE_TABLE(pci, vortex_pci_tbl); |
| |
| |
| /* Operational definitions. |
| These are not used by other compilation units and thus are not |
| exported in a ".h" file. |
| |
| First the windows. There are eight register windows, with the command |
| and status registers available in each. |
| */ |
| #define EL3_CMD 0x0e |
| #define EL3_STATUS 0x0e |
| |
| /* The top five bits written to EL3_CMD are a command, the lower |
| 11 bits are the parameter, if applicable. |
| Note that 11 parameters bits was fine for ethernet, but the new chip |
| can handle FDDI length frames (~4500 octets) and now parameters count |
| 32-bit 'Dwords' rather than octets. */ |
| |
| enum vortex_cmd { |
| TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11, |
| RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, |
| UpStall = 6<<11, UpUnstall = (6<<11)+1, |
| DownStall = (6<<11)+2, DownUnstall = (6<<11)+3, |
| RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11, |
| FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11, |
| SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11, |
| SetTxThreshold = 18<<11, SetTxStart = 19<<11, |
| StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11, |
| StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,}; |
| |
| /* The SetRxFilter command accepts the following classes: */ |
| enum RxFilter { |
| RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 }; |
| |
| /* Bits in the general status register. */ |
| enum vortex_status { |
| IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004, |
| TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, |
| IntReq = 0x0040, StatsFull = 0x0080, |
| DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10, |
| DMAInProgress = 1<<11, /* DMA controller is still busy.*/ |
| CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/ |
| }; |
| |
| /* Register window 1 offsets, the window used in normal operation. |
| On the Vortex this window is always mapped at offsets 0x10-0x1f. */ |
| enum Window1 { |
| TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14, |
| RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B, |
| TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */ |
| }; |
| enum Window0 { |
| Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */ |
| Wn0EepromData = 12, /* Window 0: EEPROM results register. */ |
| IntrStatus=0x0E, /* Valid in all windows. */ |
| }; |
| enum Win0_EEPROM_bits { |
| EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0, |
| EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */ |
| EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */ |
| }; |
| /* EEPROM locations. */ |
| enum eeprom_offset { |
| PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3, |
| EtherLink3ID=7, IFXcvrIO=8, IRQLine=9, |
| NodeAddr01=10, NodeAddr23=11, NodeAddr45=12, |
| DriverTune=13, Checksum=15}; |
| |
| enum Window2 { /* Window 2. */ |
| Wn2_ResetOptions=12, |
| }; |
| enum Window3 { /* Window 3: MAC/config bits. */ |
| Wn3_Config=0, Wn3_MaxPktSize=4, Wn3_MAC_Ctrl=6, Wn3_Options=8, |
| }; |
| |
| #define BFEXT(value, offset, bitcount) \ |
| ((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1)) |
| |
| #define BFINS(lhs, rhs, offset, bitcount) \ |
| (((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) | \ |
| (((rhs) & ((1 << (bitcount)) - 1)) << (offset))) |
| |
| #define RAM_SIZE(v) BFEXT(v, 0, 3) |
| #define RAM_WIDTH(v) BFEXT(v, 3, 1) |
| #define RAM_SPEED(v) BFEXT(v, 4, 2) |
| #define ROM_SIZE(v) BFEXT(v, 6, 2) |
| #define RAM_SPLIT(v) BFEXT(v, 16, 2) |
| #define XCVR(v) BFEXT(v, 20, 4) |
| #define AUTOSELECT(v) BFEXT(v, 24, 1) |
| |
| enum Window4 { /* Window 4: Xcvr/media bits. */ |
| Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10, |
| }; |
| enum Win4_Media_bits { |
| Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */ |
| Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */ |
| Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */ |
| Media_LnkBeat = 0x0800, |
| }; |
| enum Window7 { /* Window 7: Bus Master control. */ |
| Wn7_MasterAddr = 0, Wn7_VlanEtherType=4, Wn7_MasterLen = 6, |
| Wn7_MasterStatus = 12, |
| }; |
| /* Boomerang bus master control registers. */ |
| enum MasterCtrl { |
| PktStatus = 0x20, DownListPtr = 0x24, FragAddr = 0x28, FragLen = 0x2c, |
| TxFreeThreshold = 0x2f, UpPktStatus = 0x30, UpListPtr = 0x38, |
| }; |
| |
| /* The Rx and Tx descriptor lists. |
| Caution Alpha hackers: these types are 32 bits! Note also the 8 byte |
| alignment contraint on tx_ring[] and rx_ring[]. */ |
| #define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */ |
| #define DN_COMPLETE 0x00010000 /* This packet has been downloaded */ |
| struct boom_rx_desc { |
| __le32 next; /* Last entry points to 0. */ |
| __le32 status; |
| __le32 addr; /* Up to 63 addr/len pairs possible. */ |
| __le32 length; /* Set LAST_FRAG to indicate last pair. */ |
| }; |
| /* Values for the Rx status entry. */ |
| enum rx_desc_status { |
| RxDComplete=0x00008000, RxDError=0x4000, |
| /* See boomerang_rx() for actual error bits */ |
| IPChksumErr=1<<25, TCPChksumErr=1<<26, UDPChksumErr=1<<27, |
| IPChksumValid=1<<29, TCPChksumValid=1<<30, UDPChksumValid=1<<31, |
| }; |
| |
| #ifdef MAX_SKB_FRAGS |
| #define DO_ZEROCOPY 1 |
| #else |
| #define DO_ZEROCOPY 0 |
| #endif |
| |
| struct boom_tx_desc { |
| __le32 next; /* Last entry points to 0. */ |
| __le32 status; /* bits 0:12 length, others see below. */ |
| #if DO_ZEROCOPY |
| struct { |
| __le32 addr; |
| __le32 length; |
| } frag[1+MAX_SKB_FRAGS]; |
| #else |
| __le32 addr; |
| __le32 length; |
| #endif |
| }; |
| |
| /* Values for the Tx status entry. */ |
| enum tx_desc_status { |
| CRCDisable=0x2000, TxDComplete=0x8000, |
| AddIPChksum=0x02000000, AddTCPChksum=0x04000000, AddUDPChksum=0x08000000, |
| TxIntrUploaded=0x80000000, /* IRQ when in FIFO, but maybe not sent. */ |
| }; |
| |
| /* Chip features we care about in vp->capabilities, read from the EEPROM. */ |
| enum ChipCaps { CapBusMaster=0x20, CapPwrMgmt=0x2000 }; |
| |
| struct vortex_extra_stats { |
| unsigned long tx_deferred; |
| unsigned long tx_max_collisions; |
| unsigned long tx_multiple_collisions; |
| unsigned long tx_single_collisions; |
| unsigned long rx_bad_ssd; |
| }; |
| |
| struct vortex_private { |
| /* The Rx and Tx rings should be quad-word-aligned. */ |
| struct boom_rx_desc* rx_ring; |
| struct boom_tx_desc* tx_ring; |
| dma_addr_t rx_ring_dma; |
| dma_addr_t tx_ring_dma; |
| /* The addresses of transmit- and receive-in-place skbuffs. */ |
| struct sk_buff* rx_skbuff[RX_RING_SIZE]; |
| struct sk_buff* tx_skbuff[TX_RING_SIZE]; |
| unsigned int cur_rx, cur_tx; /* The next free ring entry */ |
| unsigned int dirty_tx; /* The ring entries to be free()ed. */ |
| struct vortex_extra_stats xstats; /* NIC-specific extra stats */ |
| struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */ |
| dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */ |
| |
| /* PCI configuration space information. */ |
| struct device *gendev; |
| void __iomem *ioaddr; /* IO address space */ |
| void __iomem *cb_fn_base; /* CardBus function status addr space. */ |
| |
| /* Some values here only for performance evaluation and path-coverage */ |
| int rx_nocopy, rx_copy, queued_packet, rx_csumhits; |
| int card_idx; |
| |
| /* The remainder are related to chip state, mostly media selection. */ |
| struct timer_list timer; /* Media selection timer. */ |
| int options; /* User-settable misc. driver options. */ |
| unsigned int media_override:4, /* Passed-in media type. */ |
| default_media:4, /* Read from the EEPROM/Wn3_Config. */ |
| full_duplex:1, autoselect:1, |
| bus_master:1, /* Vortex can only do a fragment bus-m. */ |
| full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */ |
| flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */ |
| partner_flow_ctrl:1, /* Partner supports flow control */ |
| has_nway:1, |
| enable_wol:1, /* Wake-on-LAN is enabled */ |
| pm_state_valid:1, /* pci_dev->saved_config_space has sane contents */ |
| open:1, |
| medialock:1, |
| large_frames:1, /* accept large frames */ |
| handling_irq:1; /* private in_irq indicator */ |
| /* {get|set}_wol operations are already serialized by rtnl. |
| * no additional locking is required for the enable_wol and acpi_set_WOL() |
| */ |
| int drv_flags; |
| u16 status_enable; |
| u16 intr_enable; |
| u16 available_media; /* From Wn3_Options. */ |
| u16 capabilities, info1, info2; /* Various, from EEPROM. */ |
| u16 advertising; /* NWay media advertisement */ |
| unsigned char phys[2]; /* MII device addresses. */ |
| u16 deferred; /* Resend these interrupts when we |
| * bale from the ISR */ |
| u16 io_size; /* Size of PCI region (for release_region) */ |
| |
| /* Serialises access to hardware other than MII and variables below. |
| * The lock hierarchy is rtnl_lock > {lock, mii_lock} > window_lock. */ |
| spinlock_t lock; |
| |
| spinlock_t mii_lock; /* Serialises access to MII */ |
| struct mii_if_info mii; /* MII lib hooks/info */ |
| spinlock_t window_lock; /* Serialises access to windowed regs */ |
| int window; /* Register window */ |
| }; |
| |
| static void window_set(struct vortex_private *vp, int window) |
| { |
| if (window != vp->window) { |
| iowrite16(SelectWindow + window, vp->ioaddr + EL3_CMD); |
| vp->window = window; |
| } |
| } |
| |
| #define DEFINE_WINDOW_IO(size) \ |
| static u ## size \ |
| window_read ## size(struct vortex_private *vp, int window, int addr) \ |
| { \ |
| unsigned long flags; \ |
| u ## size ret; \ |
| spin_lock_irqsave(&vp->window_lock, flags); \ |
| window_set(vp, window); \ |
| ret = ioread ## size(vp->ioaddr + addr); \ |
| spin_unlock_irqrestore(&vp->window_lock, flags); \ |
| return ret; \ |
| } \ |
| static void \ |
| window_write ## size(struct vortex_private *vp, u ## size value, \ |
| int window, int addr) \ |
| { \ |
| unsigned long flags; \ |
| spin_lock_irqsave(&vp->window_lock, flags); \ |
| window_set(vp, window); \ |
| iowrite ## size(value, vp->ioaddr + addr); \ |
| spin_unlock_irqrestore(&vp->window_lock, flags); \ |
| } |
| DEFINE_WINDOW_IO(8) |
| DEFINE_WINDOW_IO(16) |
| DEFINE_WINDOW_IO(32) |
| |
| #ifdef CONFIG_PCI |
| #define DEVICE_PCI(dev) ((dev_is_pci(dev)) ? to_pci_dev((dev)) : NULL) |
| #else |
| #define DEVICE_PCI(dev) NULL |
| #endif |
| |
| #define VORTEX_PCI(vp) \ |
| ((struct pci_dev *) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL)) |
| |
| #ifdef CONFIG_EISA |
| #define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL) |
| #else |
| #define DEVICE_EISA(dev) NULL |
| #endif |
| |
| #define VORTEX_EISA(vp) \ |
| ((struct eisa_device *) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL)) |
| |
| /* The action to take with a media selection timer tick. |
| Note that we deviate from the 3Com order by checking 10base2 before AUI. |
| */ |
| enum xcvr_types { |
| XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx, |
| XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10, |
| }; |
| |
| static const struct media_table { |
| char *name; |
| unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */ |
| mask:8, /* The transceiver-present bit in Wn3_Config.*/ |
| next:8; /* The media type to try next. */ |
| int wait; /* Time before we check media status. */ |
| } media_tbl[] = { |
| { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10}, |
| { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10}, |
| { "undefined", 0, 0x80, XCVR_10baseT, 10000}, |
| { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10}, |
| { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10}, |
| { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10}, |
| { "MII", 0, 0x41, XCVR_10baseT, 3*HZ }, |
| { "undefined", 0, 0x01, XCVR_10baseT, 10000}, |
| { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ}, |
| { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ }, |
| { "Default", 0, 0xFF, XCVR_10baseT, 10000}, |
| }; |
| |
| static struct { |
| const char str[ETH_GSTRING_LEN]; |
| } ethtool_stats_keys[] = { |
| { "tx_deferred" }, |
| { "tx_max_collisions" }, |
| { "tx_multiple_collisions" }, |
| { "tx_single_collisions" }, |
| { "rx_bad_ssd" }, |
| }; |
| |
| /* number of ETHTOOL_GSTATS u64's */ |
| #define VORTEX_NUM_STATS 5 |
| |
| static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq, |
| int chip_idx, int card_idx); |
| static int vortex_up(struct net_device *dev); |
| static void vortex_down(struct net_device *dev, int final); |
| static int vortex_open(struct net_device *dev); |
| static void mdio_sync(struct vortex_private *vp, int bits); |
| static int mdio_read(struct net_device *dev, int phy_id, int location); |
| static void mdio_write(struct net_device *vp, int phy_id, int location, int value); |
| static void vortex_timer(struct timer_list *t); |
| static netdev_tx_t vortex_start_xmit(struct sk_buff *skb, |
| struct net_device *dev); |
| static netdev_tx_t boomerang_start_xmit(struct sk_buff *skb, |
| struct net_device *dev); |
| static int vortex_rx(struct net_device *dev); |
| static int boomerang_rx(struct net_device *dev); |
| static irqreturn_t vortex_boomerang_interrupt(int irq, void *dev_id); |
| static irqreturn_t _vortex_interrupt(int irq, struct net_device *dev); |
| static irqreturn_t _boomerang_interrupt(int irq, struct net_device *dev); |
| static int vortex_close(struct net_device *dev); |
| static void dump_tx_ring(struct net_device *dev); |
| static void update_stats(void __iomem *ioaddr, struct net_device *dev); |
| static struct net_device_stats *vortex_get_stats(struct net_device *dev); |
| static void set_rx_mode(struct net_device *dev); |
| #ifdef CONFIG_PCI |
| static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| #endif |
| static void vortex_tx_timeout(struct net_device *dev, unsigned int txqueue); |
| static void acpi_set_WOL(struct net_device *dev); |
| static const struct ethtool_ops vortex_ethtool_ops; |
| static void set_8021q_mode(struct net_device *dev, int enable); |
| |
| /* This driver uses 'options' to pass the media type, full-duplex flag, etc. */ |
| /* Option count limit only -- unlimited interfaces are supported. */ |
| #define MAX_UNITS 8 |
| static int options[MAX_UNITS] = { [0 ... MAX_UNITS-1] = -1 }; |
| static int full_duplex[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int hw_checksums[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int flow_ctrl[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int enable_wol[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int use_mmio[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int global_options = -1; |
| static int global_full_duplex = -1; |
| static int global_enable_wol = -1; |
| static int global_use_mmio = -1; |
| |
| /* Variables to work-around the Compaq PCI BIOS32 problem. */ |
| static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900; |
| static struct net_device *compaq_net_device; |
| |
| static int vortex_cards_found; |
| |
| module_param(debug, int, 0); |
| module_param(global_options, int, 0); |
| module_param_array(options, int, NULL, 0); |
| module_param(global_full_duplex, int, 0); |
| module_param_array(full_duplex, int, NULL, 0); |
| module_param_array(hw_checksums, int, NULL, 0); |
| module_param_array(flow_ctrl, int, NULL, 0); |
| module_param(global_enable_wol, int, 0); |
| module_param_array(enable_wol, int, NULL, 0); |
| module_param(rx_copybreak, int, 0); |
| module_param(max_interrupt_work, int, 0); |
| module_param_hw(compaq_ioaddr, int, ioport, 0); |
| module_param_hw(compaq_irq, int, irq, 0); |
| module_param(compaq_device_id, int, 0); |
| module_param(watchdog, int, 0); |
| module_param(global_use_mmio, int, 0); |
| module_param_array(use_mmio, int, NULL, 0); |
| MODULE_PARM_DESC(debug, "3c59x debug level (0-6)"); |
| MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex"); |
| MODULE_PARM_DESC(global_options, "3c59x: same as options, but applies to all NICs if options is unset"); |
| MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)"); |
| MODULE_PARM_DESC(global_full_duplex, "3c59x: same as full_duplex, but applies to all NICs if full_duplex is unset"); |
| MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)"); |
| MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)"); |
| MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)"); |
| MODULE_PARM_DESC(global_enable_wol, "3c59x: same as enable_wol, but applies to all NICs if enable_wol is unset"); |
| MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames"); |
| MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt"); |
| MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)"); |
| MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)"); |
| MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)"); |
| MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds"); |
| MODULE_PARM_DESC(global_use_mmio, "3c59x: same as use_mmio, but applies to all NICs if options is unset"); |
| MODULE_PARM_DESC(use_mmio, "3c59x: use memory-mapped PCI I/O resource (0-1)"); |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| static void poll_vortex(struct net_device *dev) |
| { |
| vortex_boomerang_interrupt(dev->irq, dev); |
| } |
| #endif |
| |
| #ifdef CONFIG_PM |
| |
| static int vortex_suspend(struct device *dev) |
| { |
| struct net_device *ndev = dev_get_drvdata(dev); |
| |
| if (!ndev || !netif_running(ndev)) |
| return 0; |
| |
| netif_device_detach(ndev); |
| vortex_down(ndev, 1); |
| |
| return 0; |
| } |
| |
| static int vortex_resume(struct device *dev) |
| { |
| struct net_device *ndev = dev_get_drvdata(dev); |
| int err; |
| |
| if (!ndev || !netif_running(ndev)) |
| return 0; |
| |
| err = vortex_up(ndev); |
| if (err) |
| return err; |
| |
| netif_device_attach(ndev); |
| |
| return 0; |
| } |
| |
| static const struct dev_pm_ops vortex_pm_ops = { |
| .suspend = vortex_suspend, |
| .resume = vortex_resume, |
| .freeze = vortex_suspend, |
| .thaw = vortex_resume, |
| .poweroff = vortex_suspend, |
| .restore = vortex_resume, |
| }; |
| |
| #define VORTEX_PM_OPS (&vortex_pm_ops) |
| |
| #else /* !CONFIG_PM */ |
| |
| #define VORTEX_PM_OPS NULL |
| |
| #endif /* !CONFIG_PM */ |
| |
| #ifdef CONFIG_EISA |
| static const struct eisa_device_id vortex_eisa_ids[] = { |
| { "TCM5920", CH_3C592 }, |
| { "TCM5970", CH_3C597 }, |
| { "" } |
| }; |
| MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids); |
| |
| static int vortex_eisa_probe(struct device *device) |
| { |
| void __iomem *ioaddr; |
| struct eisa_device *edev; |
| |
| edev = to_eisa_device(device); |
| |
| if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME)) |
| return -EBUSY; |
| |
| ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE); |
| |
| if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12, |
| edev->id.driver_data, vortex_cards_found)) { |
| release_region(edev->base_addr, VORTEX_TOTAL_SIZE); |
| return -ENODEV; |
| } |
| |
| vortex_cards_found++; |
| |
| return 0; |
| } |
| |
| static int vortex_eisa_remove(struct device *device) |
| { |
| struct eisa_device *edev; |
| struct net_device *dev; |
| struct vortex_private *vp; |
| void __iomem *ioaddr; |
| |
| edev = to_eisa_device(device); |
| dev = eisa_get_drvdata(edev); |
| |
| if (!dev) { |
| pr_err("vortex_eisa_remove called for Compaq device!\n"); |
| BUG(); |
| } |
| |
| vp = netdev_priv(dev); |
| ioaddr = vp->ioaddr; |
| |
| unregister_netdev(dev); |
| iowrite16(TotalReset|0x14, ioaddr + EL3_CMD); |
| release_region(edev->base_addr, VORTEX_TOTAL_SIZE); |
| |
| free_netdev(dev); |
| return 0; |
| } |
| |
| static struct eisa_driver vortex_eisa_driver = { |
| .id_table = vortex_eisa_ids, |
| .driver = { |
| .name = "3c59x", |
| .probe = vortex_eisa_probe, |
| .remove = vortex_eisa_remove |
| } |
| }; |
| |
| #endif /* CONFIG_EISA */ |
| |
| /* returns count found (>= 0), or negative on error */ |
| static int __init vortex_eisa_init(void) |
| { |
| int eisa_found = 0; |
| int orig_cards_found = vortex_cards_found; |
| |
| #ifdef CONFIG_EISA |
| int err; |
| |
| err = eisa_driver_register (&vortex_eisa_driver); |
| if (!err) { |
| /* |
| * Because of the way EISA bus is probed, we cannot assume |
| * any device have been found when we exit from |
| * eisa_driver_register (the bus root driver may not be |
| * initialized yet). So we blindly assume something was |
| * found, and let the sysfs magic happened... |
| */ |
| eisa_found = 1; |
| } |
| #endif |
| |
| /* Special code to work-around the Compaq PCI BIOS32 problem. */ |
| if (compaq_ioaddr) { |
| vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE), |
| compaq_irq, compaq_device_id, vortex_cards_found++); |
| } |
| |
| return vortex_cards_found - orig_cards_found + eisa_found; |
| } |
| |
| /* returns count (>= 0), or negative on error */ |
| static int vortex_init_one(struct pci_dev *pdev, |
| const struct pci_device_id *ent) |
| { |
| int rc, unit, pci_bar; |
| struct vortex_chip_info *vci; |
| void __iomem *ioaddr; |
| |
| /* wake up and enable device */ |
| rc = pci_enable_device(pdev); |
| if (rc < 0) |
| goto out; |
| |
| rc = pci_request_regions(pdev, DRV_NAME); |
| if (rc < 0) |
| goto out_disable; |
| |
| unit = vortex_cards_found; |
| |
| if (global_use_mmio < 0 && (unit >= MAX_UNITS || use_mmio[unit] < 0)) { |
| /* Determine the default if the user didn't override us */ |
| vci = &vortex_info_tbl[ent->driver_data]; |
| pci_bar = vci->drv_flags & (IS_CYCLONE | IS_TORNADO) ? 1 : 0; |
| } else if (unit < MAX_UNITS && use_mmio[unit] >= 0) |
| pci_bar = use_mmio[unit] ? 1 : 0; |
| else |
| pci_bar = global_use_mmio ? 1 : 0; |
| |
| ioaddr = pci_iomap(pdev, pci_bar, 0); |
| if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */ |
| ioaddr = pci_iomap(pdev, 0, 0); |
| if (!ioaddr) { |
| rc = -ENOMEM; |
| goto out_release; |
| } |
| |
| rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq, |
| ent->driver_data, unit); |
| if (rc < 0) |
| goto out_iounmap; |
| |
| vortex_cards_found++; |
| goto out; |
| |
| out_iounmap: |
| pci_iounmap(pdev, ioaddr); |
| out_release: |
| pci_release_regions(pdev); |
| out_disable: |
| pci_disable_device(pdev); |
| out: |
| return rc; |
| } |
| |
| static const struct net_device_ops boomrang_netdev_ops = { |
| .ndo_open = vortex_open, |
| .ndo_stop = vortex_close, |
| .ndo_start_xmit = boomerang_start_xmit, |
| .ndo_tx_timeout = vortex_tx_timeout, |
| .ndo_get_stats = vortex_get_stats, |
| #ifdef CONFIG_PCI |
| .ndo_eth_ioctl = vortex_ioctl, |
| #endif |
| .ndo_set_rx_mode = set_rx_mode, |
| .ndo_set_mac_address = eth_mac_addr, |
| .ndo_validate_addr = eth_validate_addr, |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| .ndo_poll_controller = poll_vortex, |
| #endif |
| }; |
| |
| static const struct net_device_ops vortex_netdev_ops = { |
| .ndo_open = vortex_open, |
| .ndo_stop = vortex_close, |
| .ndo_start_xmit = vortex_start_xmit, |
| .ndo_tx_timeout = vortex_tx_timeout, |
| .ndo_get_stats = vortex_get_stats, |
| #ifdef CONFIG_PCI |
| .ndo_eth_ioctl = vortex_ioctl, |
| #endif |
| .ndo_set_rx_mode = set_rx_mode, |
| .ndo_set_mac_address = eth_mac_addr, |
| .ndo_validate_addr = eth_validate_addr, |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| .ndo_poll_controller = poll_vortex, |
| #endif |
| }; |
| |
| /* |
| * Start up the PCI/EISA device which is described by *gendev. |
| * Return 0 on success. |
| * |
| * NOTE: pdev can be NULL, for the case of a Compaq device |
| */ |
| static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq, |
| int chip_idx, int card_idx) |
| { |
| struct vortex_private *vp; |
| int option; |
| unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */ |
| __be16 addr[ETH_ALEN / 2]; |
| int i, step; |
| struct net_device *dev; |
| static int printed_version; |
| int retval, print_info; |
| struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx]; |
| const char *print_name = "3c59x"; |
| struct pci_dev *pdev = NULL; |
| struct eisa_device *edev = NULL; |
| |
| if (!printed_version) { |
| pr_info("%s", version); |
| printed_version = 1; |
| } |
| |
| if (gendev) { |
| if ((pdev = DEVICE_PCI(gendev))) { |
| print_name = pci_name(pdev); |
| } |
| |
| if ((edev = DEVICE_EISA(gendev))) { |
| print_name = dev_name(&edev->dev); |
| } |
| } |
| |
| dev = alloc_etherdev(sizeof(*vp)); |
| retval = -ENOMEM; |
| if (!dev) |
| goto out; |
| |
| SET_NETDEV_DEV(dev, gendev); |
| vp = netdev_priv(dev); |
| |
| option = global_options; |
| |
| /* The lower four bits are the media type. */ |
| if (dev->mem_start) { |
| /* |
| * The 'options' param is passed in as the third arg to the |
| * LILO 'ether=' argument for non-modular use |
| */ |
| option = dev->mem_start; |
| } |
| else if (card_idx < MAX_UNITS) { |
| if (options[card_idx] >= 0) |
| option = options[card_idx]; |
| } |
| |
| if (option > 0) { |
| if (option & 0x8000) |
| vortex_debug = 7; |
| if (option & 0x4000) |
| vortex_debug = 2; |
| if (option & 0x0400) |
| vp->enable_wol = 1; |
| } |
| |
| print_info = (vortex_debug > 1); |
| if (print_info) |
| pr_info("See Documentation/networking/device_drivers/ethernet/3com/vortex.rst\n"); |
| |
| pr_info("%s: 3Com %s %s at %p.\n", |
| print_name, |
| pdev ? "PCI" : "EISA", |
| vci->name, |
| ioaddr); |
| |
| dev->base_addr = (unsigned long)ioaddr; |
| dev->irq = irq; |
| dev->mtu = mtu; |
| vp->ioaddr = ioaddr; |
| vp->large_frames = mtu > 1500; |
| vp->drv_flags = vci->drv_flags; |
| vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0; |
| vp->io_size = vci->io_size; |
| vp->card_idx = card_idx; |
| vp->window = -1; |
| |
| /* module list only for Compaq device */ |
| if (gendev == NULL) { |
| compaq_net_device = dev; |
| } |
| |
| /* PCI-only startup logic */ |
| if (pdev) { |
| /* enable bus-mastering if necessary */ |
| if (vci->flags & PCI_USES_MASTER) |
| pci_set_master(pdev); |
| |
| if (vci->drv_flags & IS_VORTEX) { |
| u8 pci_latency; |
| u8 new_latency = 248; |
| |
| /* Check the PCI latency value. On the 3c590 series the latency timer |
| must be set to the maximum value to avoid data corruption that occurs |
| when the timer expires during a transfer. This bug exists the Vortex |
| chip only. */ |
| pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency); |
| if (pci_latency < new_latency) { |
| pr_info("%s: Overriding PCI latency timer (CFLT) setting of %d, new value is %d.\n", |
| print_name, pci_latency, new_latency); |
| pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency); |
| } |
| } |
| } |
| |
| spin_lock_init(&vp->lock); |
| spin_lock_init(&vp->mii_lock); |
| spin_lock_init(&vp->window_lock); |
| vp->gendev = gendev; |
| vp->mii.dev = dev; |
| vp->mii.mdio_read = mdio_read; |
| vp->mii.mdio_write = mdio_write; |
| vp->mii.phy_id_mask = 0x1f; |
| vp->mii.reg_num_mask = 0x1f; |
| |
| /* Makes sure rings are at least 16 byte aligned. */ |
| vp->rx_ring = dma_alloc_coherent(gendev, sizeof(struct boom_rx_desc) * RX_RING_SIZE |
| + sizeof(struct boom_tx_desc) * TX_RING_SIZE, |
| &vp->rx_ring_dma, GFP_KERNEL); |
| retval = -ENOMEM; |
| if (!vp->rx_ring) |
| goto free_device; |
| |
| vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE); |
| vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE; |
| |
| /* if we are a PCI driver, we store info in pdev->driver_data |
| * instead of a module list */ |
| if (pdev) |
| pci_set_drvdata(pdev, dev); |
| if (edev) |
| eisa_set_drvdata(edev, dev); |
| |
| vp->media_override = 7; |
| if (option >= 0) { |
| vp->media_override = ((option & 7) == 2) ? 0 : option & 15; |
| if (vp->media_override != 7) |
| vp->medialock = 1; |
| vp->full_duplex = (option & 0x200) ? 1 : 0; |
| vp->bus_master = (option & 16) ? 1 : 0; |
| } |
| |
| if (global_full_duplex > 0) |
| vp->full_duplex = 1; |
| if (global_enable_wol > 0) |
| vp->enable_wol = 1; |
| |
| if (card_idx < MAX_UNITS) { |
| if (full_duplex[card_idx] > 0) |
| vp->full_duplex = 1; |
| if (flow_ctrl[card_idx] > 0) |
| vp->flow_ctrl = 1; |
| if (enable_wol[card_idx] > 0) |
| vp->enable_wol = 1; |
| } |
| |
| vp->mii.force_media = vp->full_duplex; |
| vp->options = option; |
| /* Read the station address from the EEPROM. */ |
| { |
| int base; |
| |
| if (vci->drv_flags & EEPROM_8BIT) |
| base = 0x230; |
| else if (vci->drv_flags & EEPROM_OFFSET) |
| base = EEPROM_Read + 0x30; |
| else |
| base = EEPROM_Read; |
| |
| for (i = 0; i < 0x40; i++) { |
| int timer; |
| window_write16(vp, base + i, 0, Wn0EepromCmd); |
| /* Pause for at least 162 us. for the read to take place. */ |
| for (timer = 10; timer >= 0; timer--) { |
| udelay(162); |
| if ((window_read16(vp, 0, Wn0EepromCmd) & |
| 0x8000) == 0) |
| break; |
| } |
| eeprom[i] = window_read16(vp, 0, Wn0EepromData); |
| } |
| } |
| for (i = 0; i < 0x18; i++) |
| checksum ^= eeprom[i]; |
| checksum = (checksum ^ (checksum >> 8)) & 0xff; |
| if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */ |
| while (i < 0x21) |
| checksum ^= eeprom[i++]; |
| checksum = (checksum ^ (checksum >> 8)) & 0xff; |
| } |
| if ((checksum != 0x00) && !(vci->drv_flags & IS_TORNADO)) |
| pr_cont(" ***INVALID CHECKSUM %4.4x*** ", checksum); |
| for (i = 0; i < 3; i++) |
| addr[i] = htons(eeprom[i + 10]); |
| eth_hw_addr_set(dev, (u8 *)addr); |
| if (print_info) |
| pr_cont(" %pM", dev->dev_addr); |
| /* Unfortunately an all zero eeprom passes the checksum and this |
| gets found in the wild in failure cases. Crypto is hard 8) */ |
| if (!is_valid_ether_addr(dev->dev_addr)) { |
| retval = -EINVAL; |
| pr_err("*** EEPROM MAC address is invalid.\n"); |
| goto free_ring; /* With every pack */ |
| } |
| for (i = 0; i < 6; i++) |
| window_write8(vp, dev->dev_addr[i], 2, i); |
| |
| if (print_info) |
| pr_cont(", IRQ %d\n", dev->irq); |
| /* Tell them about an invalid IRQ. */ |
| if (dev->irq <= 0 || dev->irq >= nr_irqs) |
| pr_warn(" *** Warning: IRQ %d is unlikely to work! ***\n", |
| dev->irq); |
| |
| step = (window_read8(vp, 4, Wn4_NetDiag) & 0x1e) >> 1; |
| if (print_info) { |
| pr_info(" product code %02x%02x rev %02x.%d date %02d-%02d-%02d\n", |
| eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14], |
| step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9); |
| } |
| |
| |
| if (pdev && vci->drv_flags & HAS_CB_FNS) { |
| unsigned short n; |
| |
| vp->cb_fn_base = pci_iomap(pdev, 2, 0); |
| if (!vp->cb_fn_base) { |
| retval = -ENOMEM; |
| goto free_ring; |
| } |
| |
| if (print_info) { |
| pr_info("%s: CardBus functions mapped %16.16llx->%p\n", |
| print_name, |
| (unsigned long long)pci_resource_start(pdev, 2), |
| vp->cb_fn_base); |
| } |
| |
| n = window_read16(vp, 2, Wn2_ResetOptions) & ~0x4010; |
| if (vp->drv_flags & INVERT_LED_PWR) |
| n |= 0x10; |
| if (vp->drv_flags & INVERT_MII_PWR) |
| n |= 0x4000; |
| window_write16(vp, n, 2, Wn2_ResetOptions); |
| if (vp->drv_flags & WNO_XCVR_PWR) { |
| window_write16(vp, 0x0800, 0, 0); |
| } |
| } |
| |
| /* Extract our information from the EEPROM data. */ |
| vp->info1 = eeprom[13]; |
| vp->info2 = eeprom[15]; |
| vp->capabilities = eeprom[16]; |
| |
| if (vp->info1 & 0x8000) { |
| vp->full_duplex = 1; |
| if (print_info) |
| pr_info("Full duplex capable\n"); |
| } |
| |
| { |
| static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"}; |
| unsigned int config; |
| vp->available_media = window_read16(vp, 3, Wn3_Options); |
| if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */ |
| vp->available_media = 0x40; |
| config = window_read32(vp, 3, Wn3_Config); |
| if (print_info) { |
| pr_debug(" Internal config register is %4.4x, transceivers %#x.\n", |
| config, window_read16(vp, 3, Wn3_Options)); |
| pr_info(" %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n", |
| 8 << RAM_SIZE(config), |
| RAM_WIDTH(config) ? "word" : "byte", |
| ram_split[RAM_SPLIT(config)], |
| AUTOSELECT(config) ? "autoselect/" : "", |
| XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" : |
| media_tbl[XCVR(config)].name); |
| } |
| vp->default_media = XCVR(config); |
| if (vp->default_media == XCVR_NWAY) |
| vp->has_nway = 1; |
| vp->autoselect = AUTOSELECT(config); |
| } |
| |
| if (vp->media_override != 7) { |
| pr_info("%s: Media override to transceiver type %d (%s).\n", |
| print_name, vp->media_override, |
| media_tbl[vp->media_override].name); |
| dev->if_port = vp->media_override; |
| } else |
| dev->if_port = vp->default_media; |
| |
| if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) || |
| dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) { |
| int phy, phy_idx = 0; |
| mii_preamble_required++; |
| if (vp->drv_flags & EXTRA_PREAMBLE) |
| mii_preamble_required++; |
| mdio_sync(vp, 32); |
| mdio_read(dev, 24, MII_BMSR); |
| for (phy = 0; phy < 32 && phy_idx < 1; phy++) { |
| int mii_status, phyx; |
| |
| /* |
| * For the 3c905CX we look at index 24 first, because it bogusly |
| * reports an external PHY at all indices |
| */ |
| if (phy == 0) |
| phyx = 24; |
| else if (phy <= 24) |
| phyx = phy - 1; |
| else |
| phyx = phy; |
| mii_status = mdio_read(dev, phyx, MII_BMSR); |
| if (mii_status && mii_status != 0xffff) { |
| vp->phys[phy_idx++] = phyx; |
| if (print_info) { |
| pr_info(" MII transceiver found at address %d, status %4x.\n", |
| phyx, mii_status); |
| } |
| if ((mii_status & 0x0040) == 0) |
| mii_preamble_required++; |
| } |
| } |
| mii_preamble_required--; |
| if (phy_idx == 0) { |
| pr_warn(" ***WARNING*** No MII transceivers found!\n"); |
| vp->phys[0] = 24; |
| } else { |
| vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE); |
| if (vp->full_duplex) { |
| /* Only advertise the FD media types. */ |
| vp->advertising &= ~0x02A0; |
| mdio_write(dev, vp->phys[0], 4, vp->advertising); |
| } |
| } |
| vp->mii.phy_id = vp->phys[0]; |
| } |
| |
| if (vp->capabilities & CapBusMaster) { |
| vp->full_bus_master_tx = 1; |
| if (print_info) { |
| pr_info(" Enabling bus-master transmits and %s receives.\n", |
| (vp->info2 & 1) ? "early" : "whole-frame" ); |
| } |
| vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2; |
| vp->bus_master = 0; /* AKPM: vortex only */ |
| } |
| |
| /* The 3c59x-specific entries in the device structure. */ |
| if (vp->full_bus_master_tx) { |
| dev->netdev_ops = &boomrang_netdev_ops; |
| /* Actually, it still should work with iommu. */ |
| if (card_idx < MAX_UNITS && |
| ((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) || |
| hw_checksums[card_idx] == 1)) { |
| dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; |
| } |
| } else |
| dev->netdev_ops = &vortex_netdev_ops; |
| |
| if (print_info) { |
| pr_info("%s: scatter/gather %sabled. h/w checksums %sabled\n", |
| print_name, |
| (dev->features & NETIF_F_SG) ? "en":"dis", |
| (dev->features & NETIF_F_IP_CSUM) ? "en":"dis"); |
| } |
| |
| dev->ethtool_ops = &vortex_ethtool_ops; |
| dev->watchdog_timeo = (watchdog * HZ) / 1000; |
| |
| if (pdev) { |
| vp->pm_state_valid = 1; |
| pci_save_state(pdev); |
| acpi_set_WOL(dev); |
| } |
| retval = register_netdev(dev); |
| if (retval == 0) |
| return 0; |
| |
| free_ring: |
| dma_free_coherent(&pdev->dev, |
| sizeof(struct boom_rx_desc) * RX_RING_SIZE + |
| sizeof(struct boom_tx_desc) * TX_RING_SIZE, |
| vp->rx_ring, vp->rx_ring_dma); |
| free_device: |
| free_netdev(dev); |
| pr_err(PFX "vortex_probe1 fails. Returns %d\n", retval); |
| out: |
| return retval; |
| } |
| |
| static void |
| issue_and_wait(struct net_device *dev, int cmd) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int i; |
| |
| iowrite16(cmd, ioaddr + EL3_CMD); |
| for (i = 0; i < 2000; i++) { |
| if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) |
| return; |
| } |
| |
| /* OK, that didn't work. Do it the slow way. One second */ |
| for (i = 0; i < 100000; i++) { |
| if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) { |
| if (vortex_debug > 1) |
| pr_info("%s: command 0x%04x took %d usecs\n", |
| dev->name, cmd, i * 10); |
| return; |
| } |
| udelay(10); |
| } |
| pr_err("%s: command 0x%04x did not complete! Status=0x%x\n", |
| dev->name, cmd, ioread16(ioaddr + EL3_STATUS)); |
| } |
| |
| static void |
| vortex_set_duplex(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| |
| pr_info("%s: setting %s-duplex.\n", |
| dev->name, (vp->full_duplex) ? "full" : "half"); |
| |
| /* Set the full-duplex bit. */ |
| window_write16(vp, |
| ((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) | |
| (vp->large_frames ? 0x40 : 0) | |
| ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? |
| 0x100 : 0), |
| 3, Wn3_MAC_Ctrl); |
| } |
| |
| static void vortex_check_media(struct net_device *dev, unsigned int init) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| unsigned int ok_to_print = 0; |
| |
| if (vortex_debug > 3) |
| ok_to_print = 1; |
| |
| if (mii_check_media(&vp->mii, ok_to_print, init)) { |
| vp->full_duplex = vp->mii.full_duplex; |
| vortex_set_duplex(dev); |
| } else if (init) { |
| vortex_set_duplex(dev); |
| } |
| } |
| |
| static int |
| vortex_up(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned int config; |
| int i, mii_reg5, err = 0; |
| |
| if (VORTEX_PCI(vp)) { |
| pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */ |
| if (vp->pm_state_valid) |
| pci_restore_state(VORTEX_PCI(vp)); |
| err = pci_enable_device(VORTEX_PCI(vp)); |
| if (err) { |
| pr_warn("%s: Could not enable device\n", dev->name); |
| goto err_out; |
| } |
| } |
| |
| /* Before initializing select the active media port. */ |
| config = window_read32(vp, 3, Wn3_Config); |
| |
| if (vp->media_override != 7) { |
| pr_info("%s: Media override to transceiver %d (%s).\n", |
| dev->name, vp->media_override, |
| media_tbl[vp->media_override].name); |
| dev->if_port = vp->media_override; |
| } else if (vp->autoselect) { |
| if (vp->has_nway) { |
| if (vortex_debug > 1) |
| pr_info("%s: using NWAY device table, not %d\n", |
| dev->name, dev->if_port); |
| dev->if_port = XCVR_NWAY; |
| } else { |
| /* Find first available media type, starting with 100baseTx. */ |
| dev->if_port = XCVR_100baseTx; |
| while (! (vp->available_media & media_tbl[dev->if_port].mask)) |
| dev->if_port = media_tbl[dev->if_port].next; |
| if (vortex_debug > 1) |
| pr_info("%s: first available media type: %s\n", |
| dev->name, media_tbl[dev->if_port].name); |
| } |
| } else { |
| dev->if_port = vp->default_media; |
| if (vortex_debug > 1) |
| pr_info("%s: using default media %s\n", |
| dev->name, media_tbl[dev->if_port].name); |
| } |
| |
| timer_setup(&vp->timer, vortex_timer, 0); |
| mod_timer(&vp->timer, RUN_AT(media_tbl[dev->if_port].wait)); |
| |
| if (vortex_debug > 1) |
| pr_debug("%s: Initial media type %s.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| |
| vp->full_duplex = vp->mii.force_media; |
| config = BFINS(config, dev->if_port, 20, 4); |
| if (vortex_debug > 6) |
| pr_debug("vortex_up(): writing 0x%x to InternalConfig\n", config); |
| window_write32(vp, config, 3, Wn3_Config); |
| |
| if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) { |
| mdio_read(dev, vp->phys[0], MII_BMSR); |
| mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA); |
| vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0); |
| vp->mii.full_duplex = vp->full_duplex; |
| |
| vortex_check_media(dev, 1); |
| } |
| else |
| vortex_set_duplex(dev); |
| |
| issue_and_wait(dev, TxReset); |
| /* |
| * Don't reset the PHY - that upsets autonegotiation during DHCP operations. |
| */ |
| issue_and_wait(dev, RxReset|0x04); |
| |
| |
| iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD); |
| |
| if (vortex_debug > 1) { |
| pr_debug("%s: vortex_up() irq %d media status %4.4x.\n", |
| dev->name, dev->irq, window_read16(vp, 4, Wn4_Media)); |
| } |
| |
| /* Set the station address and mask in window 2 each time opened. */ |
| for (i = 0; i < 6; i++) |
| window_write8(vp, dev->dev_addr[i], 2, i); |
| for (; i < 12; i+=2) |
| window_write16(vp, 0, 2, i); |
| |
| if (vp->cb_fn_base) { |
| unsigned short n = window_read16(vp, 2, Wn2_ResetOptions) & ~0x4010; |
| if (vp->drv_flags & INVERT_LED_PWR) |
| n |= 0x10; |
| if (vp->drv_flags & INVERT_MII_PWR) |
| n |= 0x4000; |
| window_write16(vp, n, 2, Wn2_ResetOptions); |
| } |
| |
| if (dev->if_port == XCVR_10base2) |
| /* Start the thinnet transceiver. We should really wait 50ms...*/ |
| iowrite16(StartCoax, ioaddr + EL3_CMD); |
| if (dev->if_port != XCVR_NWAY) { |
| window_write16(vp, |
| (window_read16(vp, 4, Wn4_Media) & |
| ~(Media_10TP|Media_SQE)) | |
| media_tbl[dev->if_port].media_bits, |
| 4, Wn4_Media); |
| } |
| |
| /* Switch to the stats window, and clear all stats by reading. */ |
| iowrite16(StatsDisable, ioaddr + EL3_CMD); |
| for (i = 0; i < 10; i++) |
| window_read8(vp, 6, i); |
| window_read16(vp, 6, 10); |
| window_read16(vp, 6, 12); |
| /* New: On the Vortex we must also clear the BadSSD counter. */ |
| window_read8(vp, 4, 12); |
| /* ..and on the Boomerang we enable the extra statistics bits. */ |
| window_write16(vp, 0x0040, 4, Wn4_NetDiag); |
| |
| if (vp->full_bus_master_rx) { /* Boomerang bus master. */ |
| vp->cur_rx = 0; |
| /* Initialize the RxEarly register as recommended. */ |
| iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD); |
| iowrite32(0x0020, ioaddr + PktStatus); |
| iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr); |
| } |
| if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */ |
| vp->cur_tx = vp->dirty_tx = 0; |
| if (vp->drv_flags & IS_BOOMERANG) |
| iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */ |
| /* Clear the Rx, Tx rings. */ |
| for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */ |
| vp->rx_ring[i].status = 0; |
| for (i = 0; i < TX_RING_SIZE; i++) |
| vp->tx_skbuff[i] = NULL; |
| iowrite32(0, ioaddr + DownListPtr); |
| } |
| /* Set receiver mode: presumably accept b-case and phys addr only. */ |
| set_rx_mode(dev); |
| /* enable 802.1q tagged frames */ |
| set_8021q_mode(dev, 1); |
| iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */ |
| |
| iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */ |
| iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */ |
| /* Allow status bits to be seen. */ |
| vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete| |
| (vp->full_bus_master_tx ? DownComplete : TxAvailable) | |
| (vp->full_bus_master_rx ? UpComplete : RxComplete) | |
| (vp->bus_master ? DMADone : 0); |
| vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable | |
| (vp->full_bus_master_rx ? 0 : RxComplete) | |
| StatsFull | HostError | TxComplete | IntReq |
| | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete; |
| iowrite16(vp->status_enable, ioaddr + EL3_CMD); |
| /* Ack all pending events, and set active indicator mask. */ |
| iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, |
| ioaddr + EL3_CMD); |
| iowrite16(vp->intr_enable, ioaddr + EL3_CMD); |
| if (vp->cb_fn_base) /* The PCMCIA people are idiots. */ |
| iowrite32(0x8000, vp->cb_fn_base + 4); |
| netif_start_queue (dev); |
| netdev_reset_queue(dev); |
| err_out: |
| return err; |
| } |
| |
| static int |
| vortex_open(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| int i; |
| int retval; |
| dma_addr_t dma; |
| |
| /* Use the now-standard shared IRQ implementation. */ |
| if ((retval = request_irq(dev->irq, vortex_boomerang_interrupt, IRQF_SHARED, dev->name, dev))) { |
| pr_err("%s: Could not reserve IRQ %d\n", dev->name, dev->irq); |
| goto err; |
| } |
| |
| if (vp->full_bus_master_rx) { /* Boomerang bus master. */ |
| if (vortex_debug > 2) |
| pr_debug("%s: Filling in the Rx ring.\n", dev->name); |
| for (i = 0; i < RX_RING_SIZE; i++) { |
| struct sk_buff *skb; |
| vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1)); |
| vp->rx_ring[i].status = 0; /* Clear complete bit. */ |
| vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG); |
| |
| skb = __netdev_alloc_skb(dev, PKT_BUF_SZ + NET_IP_ALIGN, |
| GFP_KERNEL); |
| vp->rx_skbuff[i] = skb; |
| if (skb == NULL) |
| break; /* Bad news! */ |
| |
| skb_reserve(skb, NET_IP_ALIGN); /* Align IP on 16 byte boundaries */ |
| dma = dma_map_single(vp->gendev, skb->data, |
| PKT_BUF_SZ, DMA_FROM_DEVICE); |
| if (dma_mapping_error(vp->gendev, dma)) |
| break; |
| vp->rx_ring[i].addr = cpu_to_le32(dma); |
| } |
| if (i != RX_RING_SIZE) { |
| pr_emerg("%s: no memory for rx ring\n", dev->name); |
| retval = -ENOMEM; |
| goto err_free_skb; |
| } |
| /* Wrap the ring. */ |
| vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma); |
| } |
| |
| retval = vortex_up(dev); |
| if (!retval) |
| goto out; |
| |
| err_free_skb: |
| for (i = 0; i < RX_RING_SIZE; i++) { |
| if (vp->rx_skbuff[i]) { |
| dev_kfree_skb(vp->rx_skbuff[i]); |
| vp->rx_skbuff[i] = NULL; |
| } |
| } |
| free_irq(dev->irq, dev); |
| err: |
| if (vortex_debug > 1) |
| pr_err("%s: vortex_open() fails: returning %d\n", dev->name, retval); |
| out: |
| return retval; |
| } |
| |
| static void |
| vortex_timer(struct timer_list *t) |
| { |
| struct vortex_private *vp = from_timer(vp, t, timer); |
| struct net_device *dev = vp->mii.dev; |
| void __iomem *ioaddr = vp->ioaddr; |
| int next_tick = 60*HZ; |
| int ok = 0; |
| int media_status; |
| |
| if (vortex_debug > 2) { |
| pr_debug("%s: Media selection timer tick happened, %s.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| pr_debug("dev->watchdog_timeo=%d\n", dev->watchdog_timeo); |
| } |
| |
| media_status = window_read16(vp, 4, Wn4_Media); |
| switch (dev->if_port) { |
| case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx: |
| if (media_status & Media_LnkBeat) { |
| netif_carrier_on(dev); |
| ok = 1; |
| if (vortex_debug > 1) |
| pr_debug("%s: Media %s has link beat, %x.\n", |
| dev->name, media_tbl[dev->if_port].name, media_status); |
| } else { |
| netif_carrier_off(dev); |
| if (vortex_debug > 1) { |
| pr_debug("%s: Media %s has no link beat, %x.\n", |
| dev->name, media_tbl[dev->if_port].name, media_status); |
| } |
| } |
| break; |
| case XCVR_MII: case XCVR_NWAY: |
| { |
| ok = 1; |
| vortex_check_media(dev, 0); |
| } |
| break; |
| default: /* Other media types handled by Tx timeouts. */ |
| if (vortex_debug > 1) |
| pr_debug("%s: Media %s has no indication, %x.\n", |
| dev->name, media_tbl[dev->if_port].name, media_status); |
| ok = 1; |
| } |
| |
| if (dev->flags & IFF_SLAVE || !netif_carrier_ok(dev)) |
| next_tick = 5*HZ; |
| |
| if (vp->medialock) |
| goto leave_media_alone; |
| |
| if (!ok) { |
| unsigned int config; |
| |
| spin_lock_irq(&vp->lock); |
| |
| do { |
| dev->if_port = media_tbl[dev->if_port].next; |
| } while ( ! (vp->available_media & media_tbl[dev->if_port].mask)); |
| if (dev->if_port == XCVR_Default) { /* Go back to default. */ |
| dev->if_port = vp->default_media; |
| if (vortex_debug > 1) |
| pr_debug("%s: Media selection failing, using default %s port.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| } else { |
| if (vortex_debug > 1) |
| pr_debug("%s: Media selection failed, now trying %s port.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| next_tick = media_tbl[dev->if_port].wait; |
| } |
| window_write16(vp, |
| (media_status & ~(Media_10TP|Media_SQE)) | |
| media_tbl[dev->if_port].media_bits, |
| 4, Wn4_Media); |
| |
| config = window_read32(vp, 3, Wn3_Config); |
| config = BFINS(config, dev->if_port, 20, 4); |
| window_write32(vp, config, 3, Wn3_Config); |
| |
| iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax, |
| ioaddr + EL3_CMD); |
| if (vortex_debug > 1) |
| pr_debug("wrote 0x%08x to Wn3_Config\n", config); |
| /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */ |
| |
| spin_unlock_irq(&vp->lock); |
| } |
| |
| leave_media_alone: |
| if (vortex_debug > 2) |
| pr_debug("%s: Media selection timer finished, %s.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| |
| mod_timer(&vp->timer, RUN_AT(next_tick)); |
| if (vp->deferred) |
| iowrite16(FakeIntr, ioaddr + EL3_CMD); |
| } |
| |
| static void vortex_tx_timeout(struct net_device *dev, unsigned int txqueue) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| |
| pr_err("%s: transmit timed out, tx_status %2.2x status %4.4x.\n", |
| dev->name, ioread8(ioaddr + TxStatus), |
| ioread16(ioaddr + EL3_STATUS)); |
| pr_err(" diagnostics: net %04x media %04x dma %08x fifo %04x\n", |
| window_read16(vp, 4, Wn4_NetDiag), |
| window_read16(vp, 4, Wn4_Media), |
| ioread32(ioaddr + PktStatus), |
| window_read16(vp, 4, Wn4_FIFODiag)); |
| /* Slight code bloat to be user friendly. */ |
| if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88) |
| pr_err("%s: Transmitter encountered 16 collisions --" |
| " network cable problem?\n", dev->name); |
| if (ioread16(ioaddr + EL3_STATUS) & IntLatch) { |
| pr_err("%s: Interrupt posted but not delivered --" |
| " IRQ blocked by another device?\n", dev->name); |
| /* Bad idea here.. but we might as well handle a few events. */ |
| vortex_boomerang_interrupt(dev->irq, dev); |
| } |
| |
| if (vortex_debug > 0) |
| dump_tx_ring(dev); |
| |
| issue_and_wait(dev, TxReset); |
| |
| dev->stats.tx_errors++; |
| if (vp->full_bus_master_tx) { |
| pr_debug("%s: Resetting the Tx ring pointer.\n", dev->name); |
| if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0) |
| iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc), |
| ioaddr + DownListPtr); |
| if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE) { |
| netif_wake_queue (dev); |
| netdev_reset_queue (dev); |
| } |
| if (vp->drv_flags & IS_BOOMERANG) |
| iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); |
| iowrite16(DownUnstall, ioaddr + EL3_CMD); |
| } else { |
| dev->stats.tx_dropped++; |
| netif_wake_queue(dev); |
| netdev_reset_queue(dev); |
| } |
| /* Issue Tx Enable */ |
| iowrite16(TxEnable, ioaddr + EL3_CMD); |
| netif_trans_update(dev); /* prevent tx timeout */ |
| } |
| |
| /* |
| * Handle uncommon interrupt sources. This is a separate routine to minimize |
| * the cache impact. |
| */ |
| static void |
| vortex_error(struct net_device *dev, int status) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int do_tx_reset = 0, reset_mask = 0; |
| unsigned char tx_status = 0; |
| |
| if (vortex_debug > 2) { |
| pr_err("%s: vortex_error(), status=0x%x\n", dev->name, status); |
| } |
| |
| if (status & TxComplete) { /* Really "TxError" for us. */ |
| tx_status = ioread8(ioaddr + TxStatus); |
| /* Presumably a tx-timeout. We must merely re-enable. */ |
| if (vortex_debug > 2 || |
| (tx_status != 0x88 && vortex_debug > 0)) { |
| pr_err("%s: Transmit error, Tx status register %2.2x.\n", |
| dev->name, tx_status); |
| if (tx_status == 0x82) { |
| pr_err("Probably a duplex mismatch. See " |
| "Documentation/networking/device_drivers/ethernet/3com/vortex.rst\n"); |
| } |
| dump_tx_ring(dev); |
| } |
| if (tx_status & 0x14) dev->stats.tx_fifo_errors++; |
| if (tx_status & 0x38) dev->stats.tx_aborted_errors++; |
| if (tx_status & 0x08) vp->xstats.tx_max_collisions++; |
| iowrite8(0, ioaddr + TxStatus); |
| if (tx_status & 0x30) { /* txJabber or txUnderrun */ |
| do_tx_reset = 1; |
| } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */ |
| do_tx_reset = 1; |
| reset_mask = 0x0108; /* Reset interface logic, but not download logic */ |
| } else { /* Merely re-enable the transmitter. */ |
| iowrite16(TxEnable, ioaddr + EL3_CMD); |
| } |
| } |
| |
| if (status & RxEarly) /* Rx early is unused. */ |
| iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD); |
| |
| if (status & StatsFull) { /* Empty statistics. */ |
| static int DoneDidThat; |
| if (vortex_debug > 4) |
| pr_debug("%s: Updating stats.\n", dev->name); |
| update_stats(ioaddr, dev); |
| /* HACK: Disable statistics as an interrupt source. */ |
| /* This occurs when we have the wrong media type! */ |
| if (DoneDidThat == 0 && |
| ioread16(ioaddr + EL3_STATUS) & StatsFull) { |
| pr_warn("%s: Updating statistics failed, disabling stats as an interrupt source\n", |
| dev->name); |
| iowrite16(SetIntrEnb | |
| (window_read16(vp, 5, 10) & ~StatsFull), |
| ioaddr + EL3_CMD); |
| vp->intr_enable &= ~StatsFull; |
| DoneDidThat++; |
| } |
| } |
| if (status & IntReq) { /* Restore all interrupt sources. */ |
| iowrite16(vp->status_enable, ioaddr + EL3_CMD); |
| iowrite16(vp->intr_enable, ioaddr + EL3_CMD); |
| } |
| if (status & HostError) { |
| u16 fifo_diag; |
| fifo_diag = window_read16(vp, 4, Wn4_FIFODiag); |
| pr_err("%s: Host error, FIFO diagnostic register %4.4x.\n", |
| dev->name, fifo_diag); |
| /* Adapter failure requires Tx/Rx reset and reinit. */ |
| if (vp->full_bus_master_tx) { |
| int bus_status = ioread32(ioaddr + PktStatus); |
| /* 0x80000000 PCI master abort. */ |
| /* 0x40000000 PCI target abort. */ |
| if (vortex_debug) |
| pr_err("%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status); |
| |
| /* In this case, blow the card away */ |
| /* Must not enter D3 or we can't legally issue the reset! */ |
| vortex_down(dev, 0); |
| issue_and_wait(dev, TotalReset | 0xff); |
| vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */ |
| } else if (fifo_diag & 0x0400) |
| do_tx_reset = 1; |
| if (fifo_diag & 0x3000) { |
| /* Reset Rx fifo and upload logic */ |
| issue_and_wait(dev, RxReset|0x07); |
| /* Set the Rx filter to the current state. */ |
| set_rx_mode(dev); |
| /* enable 802.1q VLAN tagged frames */ |
| set_8021q_mode(dev, 1); |
| iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */ |
| iowrite16(AckIntr | HostError, ioaddr + EL3_CMD); |
| } |
| } |
| |
| if (do_tx_reset) { |
| issue_and_wait(dev, TxReset|reset_mask); |
| iowrite16(TxEnable, ioaddr + EL3_CMD); |
| if (!vp->full_bus_master_tx) |
| netif_wake_queue(dev); |
| } |
| } |
| |
| static netdev_tx_t |
| vortex_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int skblen = skb->len; |
| |
| /* Put out the doubleword header... */ |
| iowrite32(skb->len, ioaddr + TX_FIFO); |
| if (vp->bus_master) { |
| /* Set the bus-master controller to transfer the packet. */ |
| int len = (skb->len + 3) & ~3; |
| vp->tx_skb_dma = dma_map_single(vp->gendev, skb->data, len, |
| DMA_TO_DEVICE); |
| if (dma_mapping_error(vp->gendev, vp->tx_skb_dma)) { |
| dev_kfree_skb_any(skb); |
| dev->stats.tx_dropped++; |
| return NETDEV_TX_OK; |
| } |
| |
| spin_lock_irq(&vp->window_lock); |
| window_set(vp, 7); |
| iowrite32(vp->tx_skb_dma, ioaddr + Wn7_MasterAddr); |
| iowrite16(len, ioaddr + Wn7_MasterLen); |
| spin_unlock_irq(&vp->window_lock); |
| vp->tx_skb = skb; |
| skb_tx_timestamp(skb); |
| iowrite16(StartDMADown, ioaddr + EL3_CMD); |
| /* netif_wake_queue() will be called at the DMADone interrupt. */ |
| } else { |
| /* ... and the packet rounded to a doubleword. */ |
| skb_tx_timestamp(skb); |
| iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); |
| dev_consume_skb_any (skb); |
| if (ioread16(ioaddr + TxFree) > 1536) { |
| netif_start_queue (dev); /* AKPM: redundant? */ |
| } else { |
| /* Interrupt us when the FIFO has room for max-sized packet. */ |
| netif_stop_queue(dev); |
| iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD); |
| } |
| } |
| |
| netdev_sent_queue(dev, skblen); |
| |
| /* Clear the Tx status stack. */ |
| { |
| int tx_status; |
| int i = 32; |
| |
| while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) { |
| if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */ |
| if (vortex_debug > 2) |
| pr_debug("%s: Tx error, status %2.2x.\n", |
| dev->name, tx_status); |
| if (tx_status & 0x04) dev->stats.tx_fifo_errors++; |
| if (tx_status & 0x38) dev->stats.tx_aborted_errors++; |
| if (tx_status & 0x30) { |
| issue_and_wait(dev, TxReset); |
| } |
| iowrite16(TxEnable, ioaddr + EL3_CMD); |
| } |
| iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */ |
| } |
| } |
| return NETDEV_TX_OK; |
| } |
| |
| static netdev_tx_t |
| boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| /* Calculate the next Tx descriptor entry. */ |
| int entry = vp->cur_tx % TX_RING_SIZE; |
| int skblen = skb->len; |
| struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE]; |
| unsigned long flags; |
| dma_addr_t dma_addr; |
| |
| if (vortex_debug > 6) { |
| pr_debug("boomerang_start_xmit()\n"); |
| pr_debug("%s: Trying to send a packet, Tx index %d.\n", |
| dev->name, vp->cur_tx); |
| } |
| |
| /* |
| * We can't allow a recursion from our interrupt handler back into the |
| * tx routine, as they take the same spin lock, and that causes |
| * deadlock. Just return NETDEV_TX_BUSY and let the stack try again in |
| * a bit |
| */ |
| if (vp->handling_irq) |
| return NETDEV_TX_BUSY; |
| |
| if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) { |
| if (vortex_debug > 0) |
| pr_warn("%s: BUG! Tx Ring full, refusing to send buffer\n", |
| dev->name); |
| netif_stop_queue(dev); |
| return NETDEV_TX_BUSY; |
| } |
| |
| vp->tx_skbuff[entry] = skb; |
| |
| vp->tx_ring[entry].next = 0; |
| #if DO_ZEROCOPY |
| if (skb->ip_summed != CHECKSUM_PARTIAL) |
| vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded); |
| else |
| vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum); |
| |
| if (!skb_shinfo(skb)->nr_frags) { |
| dma_addr = dma_map_single(vp->gendev, skb->data, skb->len, |
| DMA_TO_DEVICE); |
| if (dma_mapping_error(vp->gendev, dma_addr)) |
| goto out_dma_err; |
| |
| vp->tx_ring[entry].frag[0].addr = cpu_to_le32(dma_addr); |
| vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG); |
| } else { |
| int i; |
| |
| dma_addr = dma_map_single(vp->gendev, skb->data, |
| skb_headlen(skb), DMA_TO_DEVICE); |
| if (dma_mapping_error(vp->gendev, dma_addr)) |
| goto out_dma_err; |
| |
| vp->tx_ring[entry].frag[0].addr = cpu_to_le32(dma_addr); |
| vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb_headlen(skb)); |
| |
| for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| |
| dma_addr = skb_frag_dma_map(vp->gendev, frag, |
| 0, |
| skb_frag_size(frag), |
| DMA_TO_DEVICE); |
| if (dma_mapping_error(vp->gendev, dma_addr)) { |
| for(i = i-1; i >= 0; i--) |
| dma_unmap_page(vp->gendev, |
| le32_to_cpu(vp->tx_ring[entry].frag[i+1].addr), |
| le32_to_cpu(vp->tx_ring[entry].frag[i+1].length), |
| DMA_TO_DEVICE); |
| |
| dma_unmap_single(vp->gendev, |
| le32_to_cpu(vp->tx_ring[entry].frag[0].addr), |
| le32_to_cpu(vp->tx_ring[entry].frag[0].length), |
| DMA_TO_DEVICE); |
| |
| goto out_dma_err; |
| } |
| |
| vp->tx_ring[entry].frag[i+1].addr = |
| cpu_to_le32(dma_addr); |
| |
| if (i == skb_shinfo(skb)->nr_frags-1) |
| vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(skb_frag_size(frag)|LAST_FRAG); |
| else |
| vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(skb_frag_size(frag)); |
| } |
| } |
| #else |
| dma_addr = dma_map_single(vp->gendev, skb->data, skb->len, DMA_TO_DEVICE); |
| if (dma_mapping_error(vp->gendev, dma_addr)) |
| goto out_dma_err; |
| vp->tx_ring[entry].addr = cpu_to_le32(dma_addr); |
| vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG); |
| vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded); |
| #endif |
| |
| spin_lock_irqsave(&vp->lock, flags); |
| /* Wait for the stall to complete. */ |
| issue_and_wait(dev, DownStall); |
| prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc)); |
| if (ioread32(ioaddr + DownListPtr) == 0) { |
| iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr); |
| vp->queued_packet++; |
| } |
| |
| vp->cur_tx++; |
| netdev_sent_queue(dev, skblen); |
| |
| if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) { |
| netif_stop_queue (dev); |
| } else { /* Clear previous interrupt enable. */ |
| #if defined(tx_interrupt_mitigation) |
| /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef |
| * were selected, this would corrupt DN_COMPLETE. No? |
| */ |
| prev_entry->status &= cpu_to_le32(~TxIntrUploaded); |
| #endif |
| } |
| skb_tx_timestamp(skb); |
| iowrite16(DownUnstall, ioaddr + EL3_CMD); |
| spin_unlock_irqrestore(&vp->lock, flags); |
| out: |
| return NETDEV_TX_OK; |
| out_dma_err: |
| dev_err(vp->gendev, "Error mapping dma buffer\n"); |
| goto out; |
| } |
| |
| /* The interrupt handler does all of the Rx thread work and cleans up |
| after the Tx thread. */ |
| |
| /* |
| * This is the ISR for the vortex series chips. |
| * full_bus_master_tx == 0 && full_bus_master_rx == 0 |
| */ |
| |
| static irqreturn_t |
| _vortex_interrupt(int irq, struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr; |
| int status; |
| int work_done = max_interrupt_work; |
| int handled = 0; |
| unsigned int bytes_compl = 0, pkts_compl = 0; |
| |
| ioaddr = vp->ioaddr; |
| |
| status = ioread16(ioaddr + EL3_STATUS); |
| |
| if (vortex_debug > 6) |
| pr_debug("vortex_interrupt(). status=0x%4x\n", status); |
| |
| if ((status & IntLatch) == 0) |
| goto handler_exit; /* No interrupt: shared IRQs cause this */ |
| handled = 1; |
| |
| if (status & IntReq) { |
| status |= vp->deferred; |
| vp->deferred = 0; |
| } |
| |
| if (status == 0xffff) /* h/w no longer present (hotplug)? */ |
| goto handler_exit; |
| |
| if (vortex_debug > 4) |
| pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n", |
| dev->name, status, ioread8(ioaddr + Timer)); |
| |
| spin_lock(&vp->window_lock); |
| window_set(vp, 7); |
| |
| do { |
| if (vortex_debug > 5) |
| pr_debug("%s: In interrupt loop, status %4.4x.\n", |
| dev->name, status); |
| if (status & RxComplete) |
| vortex_rx(dev); |
| |
| if (status & TxAvailable) { |
| if (vortex_debug > 5) |
| pr_debug(" TX room bit was handled.\n"); |
| /* There's room in the FIFO for a full-sized packet. */ |
| iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD); |
| netif_wake_queue (dev); |
| } |
| |
| if (status & DMADone) { |
| if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) { |
| iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */ |
| dma_unmap_single(vp->gendev, vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, DMA_TO_DEVICE); |
| pkts_compl++; |
| bytes_compl += vp->tx_skb->len; |
| dev_consume_skb_irq(vp->tx_skb); /* Release the transferred buffer */ |
| if (ioread16(ioaddr + TxFree) > 1536) { |
| /* |
| * AKPM: FIXME: I don't think we need this. If the queue was stopped due to |
| * insufficient FIFO room, the TxAvailable test will succeed and call |
| * netif_wake_queue() |
| */ |
| netif_wake_queue(dev); |
| } else { /* Interrupt when FIFO has room for max-sized packet. */ |
| iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD); |
| netif_stop_queue(dev); |
| } |
| } |
| } |
| /* Check for all uncommon interrupts at once. */ |
| if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) { |
| if (status == 0xffff) |
| break; |
| if (status & RxEarly) |
| vortex_rx(dev); |
| spin_unlock(&vp->window_lock); |
| vortex_error(dev, status); |
| spin_lock(&vp->window_lock); |
| window_set(vp, 7); |
| } |
| |
| if (--work_done < 0) { |
| pr_warn("%s: Too much work in interrupt, status %4.4x\n", |
| dev->name, status); |
| /* Disable all pending interrupts. */ |
| do { |
| vp->deferred |= status; |
| iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable), |
| ioaddr + EL3_CMD); |
| iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD); |
| } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch); |
| /* The timer will reenable interrupts. */ |
| mod_timer(&vp->timer, jiffies + 1*HZ); |
| break; |
| } |
| /* Acknowledge the IRQ. */ |
| iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); |
| } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete)); |
| |
| netdev_completed_queue(dev, pkts_compl, bytes_compl); |
| spin_unlock(&vp->window_lock); |
| |
| if (vortex_debug > 4) |
| pr_debug("%s: exiting interrupt, status %4.4x.\n", |
| dev->name, status); |
| handler_exit: |
| return IRQ_RETVAL(handled); |
| } |
| |
| /* |
| * This is the ISR for the boomerang series chips. |
| * full_bus_master_tx == 1 && full_bus_master_rx == 1 |
| */ |
| |
| static irqreturn_t |
| _boomerang_interrupt(int irq, struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr; |
| int status; |
| int work_done = max_interrupt_work; |
| int handled = 0; |
| unsigned int bytes_compl = 0, pkts_compl = 0; |
| |
| ioaddr = vp->ioaddr; |
| |
| vp->handling_irq = 1; |
| |
| status = ioread16(ioaddr + EL3_STATUS); |
| |
| if (vortex_debug > 6) |
| pr_debug("boomerang_interrupt. status=0x%4x\n", status); |
| |
| if ((status & IntLatch) == 0) |
| goto handler_exit; /* No interrupt: shared IRQs can cause this */ |
| handled = 1; |
| |
| if (status == 0xffff) { /* h/w no longer present (hotplug)? */ |
| if (vortex_debug > 1) |
| pr_debug("boomerang_interrupt(1): status = 0xffff\n"); |
| goto handler_exit; |
| } |
| |
| if (status & IntReq) { |
| status |= vp->deferred; |
| vp->deferred = 0; |
| } |
| |
| if (vortex_debug > 4) |
| pr_debug("%s: interrupt, status %4.4x, latency %d ticks.\n", |
| dev->name, status, ioread8(ioaddr + Timer)); |
| do { |
| if (vortex_debug > 5) |
| pr_debug("%s: In interrupt loop, status %4.4x.\n", |
| dev->name, status); |
| if (status & UpComplete) { |
| iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD); |
| if (vortex_debug > 5) |
| pr_debug("boomerang_interrupt->boomerang_rx\n"); |
| boomerang_rx(dev); |
| } |
| |
| if (status & DownComplete) { |
| unsigned int dirty_tx = vp->dirty_tx; |
| |
| iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD); |
| while (vp->cur_tx - dirty_tx > 0) { |
| int entry = dirty_tx % TX_RING_SIZE; |
| #if 1 /* AKPM: the latter is faster, but cyclone-only */ |
| if (ioread32(ioaddr + DownListPtr) == |
| vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc)) |
| break; /* It still hasn't been processed. */ |
| #else |
| if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0) |
| break; /* It still hasn't been processed. */ |
| #endif |
| |
| if (vp->tx_skbuff[entry]) { |
| struct sk_buff *skb = vp->tx_skbuff[entry]; |
| #if DO_ZEROCOPY |
| int i; |
| dma_unmap_single(vp->gendev, |
| le32_to_cpu(vp->tx_ring[entry].frag[0].addr), |
| le32_to_cpu(vp->tx_ring[entry].frag[0].length)&0xFFF, |
| DMA_TO_DEVICE); |
| |
| for (i=1; i<=skb_shinfo(skb)->nr_frags; i++) |
| dma_unmap_page(vp->gendev, |
| le32_to_cpu(vp->tx_ring[entry].frag[i].addr), |
| le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF, |
| DMA_TO_DEVICE); |
| #else |
| dma_unmap_single(vp->gendev, |
| le32_to_cpu(vp->tx_ring[entry].addr), skb->len, DMA_TO_DEVICE); |
| #endif |
| pkts_compl++; |
| bytes_compl += skb->len; |
| dev_consume_skb_irq(skb); |
| vp->tx_skbuff[entry] = NULL; |
| } else { |
| pr_debug("boomerang_interrupt: no skb!\n"); |
| } |
| /* dev->stats.tx_packets++; Counted below. */ |
| dirty_tx++; |
| } |
| vp->dirty_tx = dirty_tx; |
| if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) { |
| if (vortex_debug > 6) |
| pr_debug("boomerang_interrupt: wake queue\n"); |
| netif_wake_queue (dev); |
| } |
| } |
| |
| /* Check for all uncommon interrupts at once. */ |
| if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) |
| vortex_error(dev, status); |
| |
| if (--work_done < 0) { |
| pr_warn("%s: Too much work in interrupt, status %4.4x\n", |
| dev->name, status); |
| /* Disable all pending interrupts. */ |
| do { |
| vp->deferred |= status; |
| iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable), |
| ioaddr + EL3_CMD); |
| iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD); |
| } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch); |
| /* The timer will reenable interrupts. */ |
| mod_timer(&vp->timer, jiffies + 1*HZ); |
| break; |
| } |
| /* Acknowledge the IRQ. */ |
| iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); |
| if (vp->cb_fn_base) /* The PCMCIA people are idiots. */ |
| iowrite32(0x8000, vp->cb_fn_base + 4); |
| |
| } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch); |
| netdev_completed_queue(dev, pkts_compl, bytes_compl); |
| |
| if (vortex_debug > 4) |
| pr_debug("%s: exiting interrupt, status %4.4x.\n", |
| dev->name, status); |
| handler_exit: |
| vp->handling_irq = 0; |
| return IRQ_RETVAL(handled); |
| } |
| |
| static irqreturn_t |
| vortex_boomerang_interrupt(int irq, void *dev_id) |
| { |
| struct net_device *dev = dev_id; |
| struct vortex_private *vp = netdev_priv(dev); |
| unsigned long flags; |
| irqreturn_t ret; |
| |
| spin_lock_irqsave(&vp->lock, flags); |
| |
| if (vp->full_bus_master_rx) |
| ret = _boomerang_interrupt(dev->irq, dev); |
| else |
| ret = _vortex_interrupt(dev->irq, dev); |
| |
| spin_unlock_irqrestore(&vp->lock, flags); |
| |
| return ret; |
| } |
| |
| static int vortex_rx(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int i; |
| short rx_status; |
| |
| if (vortex_debug > 5) |
| pr_debug("vortex_rx(): status %4.4x, rx_status %4.4x.\n", |
| ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus)); |
| while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) { |
| if (rx_status & 0x4000) { /* Error, update stats. */ |
| unsigned char rx_error = ioread8(ioaddr + RxErrors); |
| if (vortex_debug > 2) |
| pr_debug(" Rx error: status %2.2x.\n", rx_error); |
| dev->stats.rx_errors++; |
| if (rx_error & 0x01) dev->stats.rx_over_errors++; |
| if (rx_error & 0x02) dev->stats.rx_length_errors++; |
| if (rx_error & 0x04) dev->stats.rx_frame_errors++; |
| if (rx_error & 0x08) dev->stats.rx_crc_errors++; |
| if (rx_error & 0x10) dev->stats.rx_length_errors++; |
| } else { |
| /* The packet length: up to 4.5K!. */ |
| int pkt_len = rx_status & 0x1fff; |
| struct sk_buff *skb; |
| |
| skb = netdev_alloc_skb(dev, pkt_len + 5); |
| if (vortex_debug > 4) |
| pr_debug("Receiving packet size %d status %4.4x.\n", |
| pkt_len, rx_status); |
| if (skb != NULL) { |
| skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ |
| /* 'skb_put()' points to the start of sk_buff data area. */ |
| if (vp->bus_master && |
| ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) { |
| dma_addr_t dma = dma_map_single(vp->gendev, skb_put(skb, pkt_len), |
| pkt_len, DMA_FROM_DEVICE); |
| iowrite32(dma, ioaddr + Wn7_MasterAddr); |
| iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen); |
| iowrite16(StartDMAUp, ioaddr + EL3_CMD); |
| while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000) |
| ; |
| dma_unmap_single(vp->gendev, dma, pkt_len, DMA_FROM_DEVICE); |
| } else { |
| ioread32_rep(ioaddr + RX_FIFO, |
| skb_put(skb, pkt_len), |
| (pkt_len + 3) >> 2); |
| } |
| iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */ |
| skb->protocol = eth_type_trans(skb, dev); |
| netif_rx(skb); |
| dev->stats.rx_packets++; |
| /* Wait a limited time to go to next packet. */ |
| for (i = 200; i >= 0; i--) |
| if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) |
| break; |
| continue; |
| } else if (vortex_debug > 0) |
| pr_notice("%s: No memory to allocate a sk_buff of size %d.\n", |
| dev->name, pkt_len); |
| dev->stats.rx_dropped++; |
| } |
| issue_and_wait(dev, RxDiscard); |
| } |
| |
| return 0; |
| } |
| |
| static int |
| boomerang_rx(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| int entry = vp->cur_rx % RX_RING_SIZE; |
| void __iomem *ioaddr = vp->ioaddr; |
| int rx_status; |
| int rx_work_limit = RX_RING_SIZE; |
| |
| if (vortex_debug > 5) |
| pr_debug("boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS)); |
| |
| while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){ |
| if (--rx_work_limit < 0) |
| break; |
| if (rx_status & RxDError) { /* Error, update stats. */ |
| unsigned char rx_error = rx_status >> 16; |
| if (vortex_debug > 2) |
| pr_debug(" Rx error: status %2.2x.\n", rx_error); |
| dev->stats.rx_errors++; |
| if (rx_error & 0x01) dev->stats.rx_over_errors++; |
| if (rx_error & 0x02) dev->stats.rx_length_errors++; |
| if (rx_error & 0x04) dev->stats.rx_frame_errors++; |
| if (rx_error & 0x08) dev->stats.rx_crc_errors++; |
| if (rx_error & 0x10) dev->stats.rx_length_errors++; |
| } else { |
| /* The packet length: up to 4.5K!. */ |
| int pkt_len = rx_status & 0x1fff; |
| struct sk_buff *skb, *newskb; |
| dma_addr_t newdma; |
| dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr); |
| |
| if (vortex_debug > 4) |
| pr_debug("Receiving packet size %d status %4.4x.\n", |
| pkt_len, rx_status); |
| |
| /* Check if the packet is long enough to just accept without |
| copying to a properly sized skbuff. */ |
| if (pkt_len < rx_copybreak && |
| (skb = netdev_alloc_skb(dev, pkt_len + 2)) != NULL) { |
| skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ |
| dma_sync_single_for_cpu(vp->gendev, dma, PKT_BUF_SZ, DMA_FROM_DEVICE); |
| /* 'skb_put()' points to the start of sk_buff data area. */ |
| skb_put_data(skb, vp->rx_skbuff[entry]->data, |
| pkt_len); |
| dma_sync_single_for_device(vp->gendev, dma, PKT_BUF_SZ, DMA_FROM_DEVICE); |
| vp->rx_copy++; |
| } else { |
| /* Pre-allocate the replacement skb. If it or its |
| * mapping fails then recycle the buffer thats already |
| * in place |
| */ |
| newskb = netdev_alloc_skb_ip_align(dev, PKT_BUF_SZ); |
| if (!newskb) { |
| dev->stats.rx_dropped++; |
| goto clear_complete; |
| } |
| newdma = dma_map_single(vp->gendev, newskb->data, |
| PKT_BUF_SZ, DMA_FROM_DEVICE); |
| if (dma_mapping_error(vp->gendev, newdma)) { |
| dev->stats.rx_dropped++; |
| consume_skb(newskb); |
| goto clear_complete; |
| } |
| |
| /* Pass up the skbuff already on the Rx ring. */ |
| skb = vp->rx_skbuff[entry]; |
| vp->rx_skbuff[entry] = newskb; |
| vp->rx_ring[entry].addr = cpu_to_le32(newdma); |
| skb_put(skb, pkt_len); |
| dma_unmap_single(vp->gendev, dma, PKT_BUF_SZ, DMA_FROM_DEVICE); |
| vp->rx_nocopy++; |
| } |
| skb->protocol = eth_type_trans(skb, dev); |
| { /* Use hardware checksum info. */ |
| int csum_bits = rx_status & 0xee000000; |
| if (csum_bits && |
| (csum_bits == (IPChksumValid | TCPChksumValid) || |
| csum_bits == (IPChksumValid | UDPChksumValid))) { |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| vp->rx_csumhits++; |
| } |
| } |
| netif_rx(skb); |
| dev->stats.rx_packets++; |
| } |
| |
| clear_complete: |
| vp->rx_ring[entry].status = 0; /* Clear complete bit. */ |
| iowrite16(UpUnstall, ioaddr + EL3_CMD); |
| entry = (++vp->cur_rx) % RX_RING_SIZE; |
| } |
| return 0; |
| } |
| |
| static void |
| vortex_down(struct net_device *dev, int final_down) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| |
| netdev_reset_queue(dev); |
| netif_stop_queue(dev); |
| |
| del_timer_sync(&vp->timer); |
| |
| /* Turn off statistics ASAP. We update dev->stats below. */ |
| iowrite16(StatsDisable, ioaddr + EL3_CMD); |
| |
| /* Disable the receiver and transmitter. */ |
| iowrite16(RxDisable, ioaddr + EL3_CMD); |
| iowrite16(TxDisable, ioaddr + EL3_CMD); |
| |
| /* Disable receiving 802.1q tagged frames */ |
| set_8021q_mode(dev, 0); |
| |
| if (dev->if_port == XCVR_10base2) |
| /* Turn off thinnet power. Green! */ |
| iowrite16(StopCoax, ioaddr + EL3_CMD); |
| |
| iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD); |
| |
| update_stats(ioaddr, dev); |
| if (vp->full_bus_master_rx) |
| iowrite32(0, ioaddr + UpListPtr); |
| if (vp->full_bus_master_tx) |
| iowrite32(0, ioaddr + DownListPtr); |
| |
| if (final_down && VORTEX_PCI(vp)) { |
| vp->pm_state_valid = 1; |
| pci_save_state(VORTEX_PCI(vp)); |
| acpi_set_WOL(dev); |
| } |
| } |
| |
| static int |
| vortex_close(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int i; |
| |
| if (netif_device_present(dev)) |
| vortex_down(dev, 1); |
| |
| if (vortex_debug > 1) { |
| pr_debug("%s: vortex_close() status %4.4x, Tx status %2.2x.\n", |
| dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus)); |
| pr_debug("%s: vortex close stats: rx_nocopy %d rx_copy %d" |
| " tx_queued %d Rx pre-checksummed %d.\n", |
| dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits); |
| } |
| |
| #if DO_ZEROCOPY |
| if (vp->rx_csumhits && |
| (vp->drv_flags & HAS_HWCKSM) == 0 && |
| (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) { |
| pr_warn("%s supports hardware checksums, and we're not using them!\n", |
| dev->name); |
| } |
| #endif |
| |
| free_irq(dev->irq, dev); |
| |
| if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */ |
| for (i = 0; i < RX_RING_SIZE; i++) |
| if (vp->rx_skbuff[i]) { |
| dma_unmap_single(vp->gendev, le32_to_cpu(vp->rx_ring[i].addr), |
| PKT_BUF_SZ, DMA_FROM_DEVICE); |
| dev_kfree_skb(vp->rx_skbuff[i]); |
| vp->rx_skbuff[i] = NULL; |
| } |
| } |
| if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */ |
| |