diff options
Diffstat (limited to 'bsps/shared/net/if_fxp.c')
| -rw-r--r-- | bsps/shared/net/if_fxp.c | 2339 |
1 files changed, 0 insertions, 2339 deletions
diff --git a/bsps/shared/net/if_fxp.c b/bsps/shared/net/if_fxp.c deleted file mode 100644 index 2bf99077f7..0000000000 --- a/bsps/shared/net/if_fxp.c +++ /dev/null @@ -1,2339 +0,0 @@ -/*- - * Copyright (c) 1995, David Greenman - * Copyright (c) 2001 Jonathan Lemon <jlemon@freebsd.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice unmodified, this list of conditions, and the following - * disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD: src/sys/dev/fxp/if_fxp.c,v 1.118 2001/09/05 23:33:58 brooks Exp $ - */ - -/* - * Intel EtherExpress Pro/100B PCI Fast Ethernet driver - */ - -/* - * RTEMS Revision Preliminary History - * - * July XXX, 2002 W. Eric Norum <eric.norum@usask.ca> - * Placed in RTEMS CVS repository. All further modifications will be - * noted in the CVS log and not in this comment. - * - * July 11, 2002 W. Eric Norum <eric.norum@usask.ca> - * Minor modifications to get driver working with NIC on VersaLogic - * Bobcat PC-104 single-board computer. The Bobcat has no video - * driver so printf/printk calls are directed to COM2:. This - * arrangement seems to require delays after the printk calls or - * else things lock up. Perhaps the RTEMS pc386 console code - * should be modified to insert these delays itself. - * - * June 27, 2002 W. Eric Norum <eric.norum@usask.ca> - * Obtained from Thomas Doerfler <Thomas.Doerfler@imd-systems.de>. - * A big thank-you to Thomas for making this available. - * - * October 01, 2001 Thomas Doerfler <Thomas.Doerfler@imd-systems.de> - * Original RTEMS modifications. - */ - -#include <machine/rtems-bsd-kernel-space.h> - -#if defined(__i386__) - -/*#define DEBUG_OUT 0*/ - -#include <rtems.h> -#include <rtems/error.h> -#include <rtems/rtems_bsdnet.h> -#include <bsp.h> -#include <inttypes.h> - -#include <errno.h> -#include <sys/param.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/sockio.h> -#include <net/if.h> -#include <netinet/in.h> -#include <netinet/if_ether.h> -#include <sys/malloc.h> -#include <sys/systm.h> -#include <bsp.h> -#include <bsp/irq.h> -#include <bsp/irq-generic.h> -#include <rtems/pci.h> - -#ifdef NS -#include <netns/ns.h> -#include <netns/ns_if.h> -#endif - -#include <net/bpf.h> - -#include <vm/vm.h> /* for vtophys */ - -#include <net/if_types.h> - -#include "if_fxpreg.h" -#include <libchip/if_fxpvar.h> - -/* - * some adaptation replacements for RTEMS - */ -static rtems_interval fxp_ticksPerSecond; -#define device_printf(device,format,args...) printk(format,## args) -#define DELAY(n) rtems_task_wake_after(((n)*fxp_ticksPerSecond/1000000)+1) -#ifdef DEBUG_OUT -#define DBGLVL_PRINTK(LVL,format, args...) \ -if (DEBUG_OUT >= (LVL)) { \ - printk(format, ## args); \ -} -#else -#define DBGLVL_PRINTK(LVL,format, args...) -#endif - -/* - * RTEMS event used by interrupt handler to signal driver tasks. - * This must not be any of the events used by the network task synchronization. - */ -#define INTERRUPT_EVENT RTEMS_EVENT_1 - -/* - * remapping between PCI device and CPU memmory address view... - */ -#if defined(__i386) -#define vtophys(p) (u_int32_t)(p) -#else -#define vtophys(p) vtophys(p) -#endif - -#define NFXPDRIVER 1 -static struct fxp_softc fxp_softc[NFXPDRIVER]; -static bool fxp_is_verbose = true; -/* - * NOTE! On the Alpha, we have an alignment constraint. The - * card DMAs the packet immediately following the RFA. However, - * the first thing in the packet is a 14-byte Ethernet header. - * This means that the packet is misaligned. To compensate, - * we actually offset the RFA 2 bytes into the cluster. This - * alignes the packet after the Ethernet header at a 32-bit - * boundary. HOWEVER! This means that the RFA is misaligned! - */ -#define RFA_ALIGNMENT_FUDGE 2 - -/* - * Set initial transmit threshold at 64 (512 bytes). This is - * increased by 64 (512 bytes) at a time, to maximum of 192 - * (1536 bytes), if an underrun occurs. - */ -static int tx_threshold = 64; - -/* - * The configuration byte map has several undefined fields which - * must be one or must be zero. Set up a template for these bits - * only, (assuming a 82557 chip) leaving the actual configuration - * to fxp_init. - * - * See struct fxp_cb_config for the bit definitions. - */ -static u_char fxp_cb_config_template[] = { - 0x0, 0x0, /* cb_status */ - 0x0, 0x0, /* cb_command */ - 0x0, 0x0, 0x0, 0x0, /* link_addr */ - 0x0, /* 0 */ - 0x0, /* 1 */ - 0x0, /* 2 */ - 0x0, /* 3 */ - 0x0, /* 4 */ - 0x0, /* 5 */ - 0x32, /* 6 */ - 0x0, /* 7 */ - 0x0, /* 8 */ - 0x0, /* 9 */ - 0x6, /* 10 */ - 0x0, /* 11 */ - 0x0, /* 12 */ - 0x0, /* 13 */ - 0xf2, /* 14 */ - 0x48, /* 15 */ - 0x0, /* 16 */ - 0x40, /* 17 */ - 0xf0, /* 18 */ - 0x0, /* 19 */ - 0x3f, /* 20 */ - 0x5 /* 21 */ -}; - -struct fxp_ident { - u_int16_t devid; - char *name; - int warn; -}; - -#define UNTESTED 1 - -/* - * Claim various Intel PCI device identifiers for this driver. The - * sub-vendor and sub-device field are extensively used to identify - * particular variants, but we don't currently differentiate between - * them. - */ -static struct fxp_ident fxp_ident_table[] = { - { 0x1229, "Intel Pro 10/100B/100+ Ethernet", 0 }, - { 0x2449, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1209, "Intel Embedded 10/100 Ethernet", 0 }, - { 0x1029, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1030, "Intel Pro/100 Ethernet", 0 }, - { 0x1031, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1032, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1033, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1034, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1035, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1036, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1037, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x1038, "Intel Pro/100 Ethernet", UNTESTED }, - { 0x103B, "Intel Pro/100 Ethernet (82801BD PRO/100 VM (LOM))", 0 }, - { 0, NULL, 0 } -}; - -#if 0 -static int fxp_probe(device_t dev); -static int fxp_attach(device_t dev); -static int fxp_detach(device_t dev); -static int fxp_shutdown(device_t dev); -#endif -int fxp_output (struct ifnet *, - struct mbuf *, struct sockaddr *, struct rtentry *); - - -static void fxp_intr(void *arg); -static void fxp_init(void *xsc); -static void fxp_tick(void *xsc); -static void fxp_start(struct ifnet *ifp); -static void fxp_stop(struct fxp_softc *sc); -static void fxp_release(struct fxp_softc *sc); -static int fxp_ioctl(struct ifnet *ifp, ioctl_command_t command, - caddr_t data); -static void fxp_watchdog(struct ifnet *ifp); -static int fxp_add_rfabuf(struct fxp_softc *sc, struct mbuf *oldm); -static void fxp_mc_setup(struct fxp_softc *sc); -static u_int16_t fxp_eeprom_getword(struct fxp_softc *sc, int offset, - int autosize); -static void fxp_eeprom_putword(struct fxp_softc *sc, int offset, - u_int16_t data); -static void fxp_autosize_eeprom(struct fxp_softc *sc); -static void fxp_read_eeprom(struct fxp_softc *sc, u_short *data, - int offset, int words); -static void fxp_write_eeprom(struct fxp_softc *sc, u_short *data, - int offset, int words); -#ifdef NOTUSED -static int fxp_ifmedia_upd(struct ifnet *ifp); -static void fxp_ifmedia_sts(struct ifnet *ifp, - struct ifmediareq *ifmr); -static int fxp_serial_ifmedia_upd(struct ifnet *ifp); -static void fxp_serial_ifmedia_sts(struct ifnet *ifp, - struct ifmediareq *ifmr); -static volatile int fxp_miibus_readreg(device_t dev, int phy, int reg); -static void fxp_miibus_writereg(device_t dev, int phy, int reg, - int value); -#endif -static __inline void fxp_lwcopy(volatile u_int32_t *src, - volatile u_int32_t *dst); -static __inline void fxp_scb_wait(struct fxp_softc *sc); -static __inline void fxp_scb_cmd(struct fxp_softc *sc, int cmd); -static __inline void fxp_dma_wait(volatile u_int16_t *status, - struct fxp_softc *sc); - -/* - * Inline function to copy a 16-bit aligned 32-bit quantity. - */ -static __inline void -fxp_lwcopy(volatile u_int32_t *src, volatile u_int32_t *dst) -{ -#ifdef __i386__ - *dst = *src; -#else - volatile u_int16_t *a = (volatile u_int16_t*)src; - volatile u_int16_t *b = (volatile u_int16_t*)dst; - - b[0] = a[0]; - b[1] = a[1]; -#endif -} - -/* - * inline access functions to pci space registers - */ -static __inline u_int8_t fxp_csr_read_1(struct fxp_softc *sc,int reg) { - u_int8_t val; - if (sc->pci_regs_are_io) { - inport_byte(sc->pci_regs_base + reg,val); - } - else { - val = *(volatile u_int8_t*)(sc->pci_regs_base+reg); - } - return val; -} -static __inline u_int32_t fxp_csr_read_2(struct fxp_softc *sc,int reg) { - u_int16_t val; - if (sc->pci_regs_are_io) { - inport_word(sc->pci_regs_base + reg,val); - } - else { - val = *(volatile u_int16_t*)(sc->pci_regs_base+reg); - } - return val; -} -static __inline u_int32_t fxp_csr_read_4(struct fxp_softc *sc,int reg) { - u_int32_t val; - if (sc->pci_regs_are_io) { - inport_long(sc->pci_regs_base + reg,val); - } - else { - val = *(volatile u_int32_t*)(sc->pci_regs_base+reg); - } - return val; -} - -/* - * Wait for the previous command to be accepted (but not necessarily - * completed). - */ -static __inline void -fxp_scb_wait(struct fxp_softc *sc) -{ - int i = 10000; - - while (CSR_READ_1(sc, FXP_CSR_SCB_COMMAND) && --i) - DELAY(2); - if (i == 0) - device_printf(sc->dev, "SCB timeout: 0x%d 0x%d" - "0x%d" PRIx32 "0x%" PRIx32 "\n", - CSR_READ_1(sc, FXP_CSR_SCB_COMMAND), - CSR_READ_1(sc, FXP_CSR_SCB_STATACK), - CSR_READ_1(sc, FXP_CSR_SCB_RUSCUS), - CSR_READ_2(sc, FXP_CSR_FLOWCONTROL)); -} - -static __inline void -fxp_scb_cmd(struct fxp_softc *sc, int cmd) -{ - - if (cmd == FXP_SCB_COMMAND_CU_RESUME && sc->cu_resume_bug) { - CSR_WRITE_1(sc, FXP_CSR_SCB_COMMAND, FXP_CB_COMMAND_NOP); - fxp_scb_wait(sc); - } - CSR_WRITE_1(sc, FXP_CSR_SCB_COMMAND, cmd); -} - -static __inline void -fxp_dma_wait(volatile u_int16_t *status, struct fxp_softc *sc) -{ - int i = 10000; - - while (!(*status & FXP_CB_STATUS_C) && --i) - DELAY(2); - if (i == 0) - device_printf(sc->dev, "DMA timeout\n"); -} - - -#define FXP_PCI_CONF_ACCESSOR(_confop, _baseop, _type) \ - \ - static inline int _confop ( \ - struct fxp_softc *sc, \ - int offset, \ - _type data ) \ - { \ - _baseop( \ - sc->pci_bus, \ - sc->pci_dev, \ - sc->pci_fun, \ - offset, \ - data \ - ); \ - return PCIB_ERR_SUCCESS; \ - } - -FXP_PCI_CONF_ACCESSOR( fxp_pci_conf_read8, pci_read_config_byte, uint8_t * ); -FXP_PCI_CONF_ACCESSOR( fxp_pci_conf_read16, pci_read_config_word, uint16_t * ); -FXP_PCI_CONF_ACCESSOR( fxp_pci_conf_read32, pci_read_config_dword, uint32_t * ); -FXP_PCI_CONF_ACCESSOR( fxp_pci_conf_write8, pci_write_config_byte, uint8_t ); -FXP_PCI_CONF_ACCESSOR( fxp_pci_conf_write16, pci_write_config_word, uint16_t ); -FXP_PCI_CONF_ACCESSOR( fxp_pci_conf_write32, pci_write_config_dword, uint32_t ); - -static __inline unsigned int fxp_pci_get_vendor(struct fxp_softc *sc) { - u_int16_t vendor; - fxp_pci_conf_read16(sc, PCI_VENDOR_ID, &vendor); - return vendor; -} - -static __inline unsigned int fxp_pci_get_device(struct fxp_softc *sc) { - u_int16_t device; - fxp_pci_conf_read16(sc, PCI_DEVICE_ID, &device); - return device; -} - -static __inline unsigned int fxp_pci_get_subvendor(struct fxp_softc *sc) { - u_int16_t subvendor; - fxp_pci_conf_read16(sc, PCI_SUBSYSTEM_VENDOR_ID, &subvendor); - return subvendor; -} - -static __inline unsigned int fxp_pci_get_subdevice(struct fxp_softc *sc) { - u_int16_t subdevice; - fxp_pci_conf_read16(sc, PCI_SUBSYSTEM_ID, &subdevice); - return subdevice; -} - -static __inline unsigned int fxp_pci_get_revid(struct fxp_softc *sc) { - u_int8_t revid; - fxp_pci_conf_read8(sc, PCI_REVISION_ID, &revid); - return revid; -} - -/* Prototype to avoid warning. This must be a global symbol. */ -int rtems_fxp_attach(struct rtems_bsdnet_ifconfig *config, int attaching); - -int -rtems_fxp_attach(struct rtems_bsdnet_ifconfig *config, int attaching) -{ - int error = 0; - struct fxp_softc *sc; - struct ifnet *ifp; - uint16_t val16; - uint32_t val32; - uint16_t data; - int i; - int s; - int unitNumber; - char *unitName; - u_int16_t dev_id; - u_int8_t interrupt; - int mtu; - - /* - * Set up some timing values - */ - fxp_ticksPerSecond = rtems_clock_get_ticks_per_second(); - DBGLVL_PRINTK(1,"fxp_attach called\n"); - - /* - * Parse driver name - */ - if ((unitNumber = rtems_bsdnet_parse_driver_name (config, &unitName)) < 0) - return 0; - - /* - * Is driver free? - */ - if ((unitNumber <= 0) || (unitNumber > NFXPDRIVER)) { - device_printf(dev,"Bad FXP unit number.\n"); - return 0; - } - sc = &fxp_softc[unitNumber - 1]; - ifp = &sc->arpcom.ac_if; - if (ifp->if_softc != NULL) { - device_printf(dev,"FXP Driver already in use.\n"); - return 0; - } - - memset(sc, 0, sizeof(*sc)); -#ifdef NOTUSED - sc->dev = dev; - callout_handle_init(&sc->stat_ch); - mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_DEF | MTX_RECURSE); -#endif - s = splimp(); - - /* - * find device on pci bus - */ - { int j; int pbus, pdev, pfun; - - for (j=0; fxp_ident_table[j].devid; j++ ) { - i = pci_find_device( 0x8086, fxp_ident_table[j].devid, - unitNumber-1, &pbus, &pdev, &pfun ); - sc->pci_bus = pbus; - sc->pci_dev = pdev; - sc->pci_fun = pfun; - DBGLVL_PRINTK(2,"fxp_attach: find_devid returned %d ," - "pci bus %d dev %d fun %d \n", - i, sc->pci_bus, sc->pci_dev, sc->pci_fun); - if (PCIB_ERR_SUCCESS == i) { - if ( UNTESTED == fxp_ident_table[j].warn ) { - device_printf(dev, -"WARNING: this chip version has NOT been reported to work under RTEMS yet.\n"); - device_printf(dev, -" If it works OK, report it as tested in 'c/src/libchip/network/if_fxp.c'\n"); - } - break; - } - } - } - - /* - * FIXME: add search for more device types... - */ - if (i != PCIB_ERR_SUCCESS) { - device_printf(dev, "could not find 82559ER device\n"); - return 0; - } - - - /* - * Enable bus mastering. Enable memory space too, in case - * BIOS/Prom forgot about it. - */ - fxp_pci_conf_read16(sc, PCI_COMMAND,&val16); - val16 |= (PCI_COMMAND_MEMORY|PCI_COMMAND_MASTER); - fxp_pci_conf_write16(sc, PCI_COMMAND, val16); - DBGLVL_PRINTK(3,"fxp_attach: PCI_COMMAND_write = 0x%x\n",val16); - fxp_pci_conf_read16(sc, PCI_COMMAND,&val16); - DBGLVL_PRINTK(4,"fxp_attach: PCI_COMMAND_read = 0x%x\n",val16); - - /* - * Figure out which we should try first - memory mapping or i/o mapping? - * We default to memory mapping. Then we accept an override from the - * command line. Then we check to see which one is enabled. - */ -#ifdef NOTUSED - m1 = PCI_COMMAND_MEMORY; - m2 = PCI_COMMAND_IO; - prefer_iomap = 0; - if (resource_int_value(device_get_name(dev), device_get_unit(dev), - "prefer_iomap", &prefer_iomap) == 0 && prefer_iomap != 0) { - m1 = PCI_COMMAND_IO; - m2 = PCI_COMMAND_MEMORY; - } - - if (val & m1) { - sc->rtp = ((m1 == PCI_COMMAND_MEMORY) - ? SYS_RES_MEMORY : SYS_RES_IOPORT); - sc->rgd = ((m1 == PCI_COMMAND_MEMORY) - ? FXP_PCI_MMBA : FXP_PCI_IOBA); - sc->mem = bus_alloc_resource(dev, sc->rtp, &sc->rgd, - 0, ~0, 1, RF_ACTIVE); - } - if (sc->mem == NULL && (val & m2)) { - sc->rtp = ((m2 == PCI_COMMAND_MEMORY) - ? SYS_RES_MEMORY : SYS_RES_IOPORT); - sc->rgd = ((m2 == PCI_COMMAND_MEMORY) - ? FXP_PCI_MMBA : FXP_PCI_IOBA); - sc->mem = bus_alloc_resource(dev, sc->rtp, &sc->rgd, - 0, ~0, 1, RF_ACTIVE); - } - - if (!sc->mem) { - device_printf(dev, "could not map device registers\n"); - error = ENXIO; - goto fail; - } - if (fxp_is_verbose) { - device_printf(dev, "using %s space register mapping\n", - sc->rtp == SYS_RES_MEMORY? "memory" : "I/O"); - } - - sc->sc_st = rman_get_bustag(sc->mem); - sc->sc_sh = rman_get_bushandle(sc->mem); - - /* - * Allocate our interrupt. - */ - rid = 0; - sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, - RF_SHAREABLE | RF_ACTIVE); - if (sc->irq == NULL) { - device_printf(dev, "could not map interrupt\n"); - error = ENXIO; - goto fail; - } - - error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, - fxp_intr, sc, &sc->ih); - if (error) { - device_printf(dev, "could not setup irq\n"); - goto fail; - } -#endif - - /* - * get mapping and base address of registers - */ - fxp_pci_conf_read16(sc, PCI_COMMAND,&val16); - DBGLVL_PRINTK(4,"fxp_attach: PCI_COMMAND_read = 0x%x\n",val16); - if((val16 & PCI_COMMAND_IO) != 0) { - sc->pci_regs_are_io = true; - fxp_pci_conf_read32(sc, PCI_BASE_ADDRESS_1, &val32); - sc->pci_regs_base = val32 & PCI_BASE_ADDRESS_IO_MASK; - } - else { - sc->pci_regs_are_io = false; - fxp_pci_conf_read32(sc, PCI_BASE_ADDRESS_0, &val32); - sc->pci_regs_base = val32 & PCI_BASE_ADDRESS_MEM_MASK; - } - DBGLVL_PRINTK(3,"fxp_attach: CSR registers are mapped in %s space" - " at address 0x%x\n", - sc->pci_regs_are_io ? "I/O" : "MEM", - sc->pci_regs_base); - - /* - * get interrupt level to be used - */ - fxp_pci_conf_read8(sc, PCI_INTERRUPT_LINE, &interrupt); - DBGLVL_PRINTK(3,"fxp_attach: interrupt = 0x%x\n",interrupt); - sc->irq_num = interrupt; - /* - * Reset to a stable state. - CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SELECTIVE_RESET); - */ - CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SOFTWARE_RESET); - DELAY(10); - - sc->cbl_base = malloc(sizeof(struct fxp_cb_tx) * FXP_NTXCB, - M_DEVBUF, M_NOWAIT); - DBGLVL_PRINTK(3,"fxp_attach: sc->cbl_base = 0x%x\n",sc->cbl_base); - if (sc->cbl_base == NULL) - goto failmem; - else - memset(sc->cbl_base, 0, sizeof(struct fxp_cb_tx) * FXP_NTXCB); - - sc->fxp_stats = malloc(sizeof(struct fxp_stats), M_DEVBUF, - M_NOWAIT); - DBGLVL_PRINTK(3,"fxp_attach: sc->fxp_stats = 0x%x\n",sc->fxp_stats); - if (sc->fxp_stats == NULL) - goto failmem; - else - memset(sc->fxp_stats, 0, sizeof(struct fxp_stats)); - - sc->mcsp = malloc(sizeof(struct fxp_cb_mcs), M_DEVBUF, M_NOWAIT); - DBGLVL_PRINTK(3,"fxp_attach: sc->mcsp = 0x%x\n",sc->mcsp); - if (sc->mcsp == NULL) - goto failmem; - - /* - * Pre-allocate our receive buffers. - */ - for (i = 0; i < FXP_NRFABUFS; i++) { - if (fxp_add_rfabuf(sc, NULL) != 0) { - goto failmem; - } - } - - /* - * Find out how large of an SEEPROM we have. - */ - DBGLVL_PRINTK(3,"fxp_attach: calling fxp_autosize_eeprom\n"); - fxp_autosize_eeprom(sc); - - /* - * Determine whether we must use the 503 serial interface. - */ - fxp_read_eeprom(sc, &data, 6, 1); - if ((data & FXP_PHY_DEVICE_MASK) != 0 && - (data & FXP_PHY_SERIAL_ONLY)) - sc->flags |= FXP_FLAG_SERIAL_MEDIA; - - /* - * Find out the basic controller type; we currently only - * differentiate between a 82557 and greater. - */ - fxp_read_eeprom(sc, &data, 5, 1); - if ((data >> 8) == 1) - sc->chip = FXP_CHIP_82557; - DBGLVL_PRINTK(3,"fxp_attach: sc->chip = %d\n",sc->chip); - - /* - * Enable workarounds for certain chip revision deficiencies. - * - * Systems based on the ICH2/ICH2-M chip from Intel have a defect - * where the chip can cause a PCI protocol violation if it receives - * a CU_RESUME command when it is entering the IDLE state. The - * workaround is to disable Dynamic Standby Mode, so the chip never - * deasserts CLKRUN#, and always remains in an active state. - * - * See Intel 82801BA/82801BAM Specification Update, Errata #30. - */ -#ifdef NOTUSED - i = fxp_pci_get_device(dev); -#else - fxp_pci_conf_read16(sc, PCI_DEVICE_ID, &dev_id); - DBGLVL_PRINTK(3,"fxp_attach: device id = 0x%x\n",dev_id); -#endif - if (dev_id == 0x2449 || (dev_id > 0x1030 && dev_id < 0x1039)) { - device_printf(dev, "*** See Intel 82801BA/82801BAM Specification Update, Errata #30. ***\n"); - fxp_read_eeprom(sc, &data, 10, 1); - if (data & 0x02) { /* STB enable */ - u_int16_t cksum; - int i; - - device_printf(dev, - "*** DISABLING DYNAMIC STANDBY MODE IN EEPROM ***\n"); - data &= ~0x02; - fxp_write_eeprom(sc, &data, 10, 1); - device_printf(dev, "New EEPROM ID: 0x%x\n", data); - cksum = 0; - for (i = 0; i < (1 << sc->eeprom_size) - 1; i++) { - fxp_read_eeprom(sc, &data, i, 1); - cksum += data; - } - i = (1 << sc->eeprom_size) - 1; - cksum = 0xBABA - cksum; - fxp_read_eeprom(sc, &data, i, 1); - fxp_write_eeprom(sc, &cksum, i, 1); - device_printf(dev, - "EEPROM checksum @ 0x%x: 0x%x -> 0x%x\n", - i, data, cksum); - /* - * We need to do a full PCI reset here. A software - * reset to the port doesn't cut it, but let's try - * anyway. - */ - CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SOFTWARE_RESET); - DELAY(50); - device_printf(dev, - "*** PLEASE REBOOT THE SYSTEM NOW FOR CORRECT OPERATION ***\n"); -#if 1 - /* - * If the user elects to continue, try the software - * workaround, as it is better than nothing. - */ - sc->flags |= FXP_FLAG_CU_RESUME_BUG; -#endif - } - } - - /* - * If we are not a 82557 chip, we can enable extended features. - */ - if (sc->chip != FXP_CHIP_82557) { - u_int8_t tmp_val; - /* - * If MWI is enabled in the PCI configuration, and there - * is a valid cacheline size (8 or 16 dwords), then tell - * the board to turn on MWI. - */ - fxp_pci_conf_read8(sc, PCI_CACHE_LINE_SIZE, &tmp_val); - DBGLVL_PRINTK(3,"fxp_attach: CACHE_LINE_SIZE = %d\n",tmp_val); - if (val16 & PCI_COMMAND_MEMORY && - tmp_val != 0) - sc->flags |= FXP_FLAG_MWI_ENABLE; - - /* turn on the extended TxCB feature */ - sc->flags |= FXP_FLAG_EXT_TXCB; - - /* enable reception of long frames for VLAN */ - sc->flags |= FXP_FLAG_LONG_PKT_EN; - DBGLVL_PRINTK(3,"fxp_attach: sc->flags = 0x%x\n", - sc->flags); - } - - /* - * Read MAC address. - */ - fxp_read_eeprom(sc, (u_int16_t*)sc->arpcom.ac_enaddr, 0, 3); - if (fxp_is_verbose) { - device_printf(dev, "Ethernet address %x:%x:%x:%x:%x:%x %s \n", - ((u_int8_t*)sc->arpcom.ac_enaddr)[0], - ((u_int8_t*)sc->arpcom.ac_enaddr)[1], - ((u_int8_t*)sc->arpcom.ac_enaddr)[2], - ((u_int8_t*)sc->arpcom.ac_enaddr)[3], - ((u_int8_t*)sc->arpcom.ac_enaddr)[4], - ((u_int8_t*)sc->arpcom.ac_enaddr)[5], - sc->flags & FXP_FLAG_SERIAL_MEDIA ? ", 10Mbps" : ""); - device_printf(dev, "PCI IDs: 0x%x 0x%x 0x%x 0x%x 0x%x\n", - fxp_pci_get_vendor(sc), fxp_pci_get_device(sc), - fxp_pci_get_subvendor(sc), fxp_pci_get_subdevice(sc), - fxp_pci_get_revid(sc)); - device_printf(dev, "Chip Type: %d\n", sc->chip); - } - -#ifdef NOTUSED /* do not set up interface at all... */ - /* - * If this is only a 10Mbps device, then there is no MII, and - * the PHY will use a serial interface instead. - * - * The Seeq 80c24 AutoDUPLEX(tm) Ethernet Interface Adapter - * doesn't have a programming interface of any sort. The - * media is sensed automatically based on how the link partner - * is configured. This is, in essence, manual configuration. - */ - if (sc->flags & FXP_FLAG_SERIAL_MEDIA) { - ifmedia_init(&sc->sc_media, 0, fxp_serial_ifmedia_upd, - fxp_serial_ifmedia_sts); - ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL); - ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_MANUAL); - } else { - if (mii_phy_probe(dev, &sc->miibus, fxp_ifmedia_upd, - fxp_ifmedia_sts)) { - device_printf(dev, "MII without any PHY!\n"); - error = ENXIO; - goto fail; - } - } -#endif - if (config->mtu) - mtu = config->mtu; - else - mtu = ETHERMTU; - - ifp->if_softc = sc; - ifp->if_unit = unitNumber; - ifp->if_name = unitName; - ifp->if_mtu = mtu; - ifp->if_baudrate = 100000000; - ifp->if_init = fxp_init; - ifp->if_ioctl = fxp_ioctl; - ifp->if_start = fxp_start; - ifp->if_output = ether_output; - ifp->if_watchdog = fxp_watchdog; - ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX /*| IFF_MULTICAST*/; - if (ifp->if_snd.ifq_maxlen == 0) - ifp->if_snd.ifq_maxlen = ifqmaxlen; - - /* - * Attach the interface. - */ - DBGLVL_PRINTK(3,"fxp_attach: calling if_attach\n"); - if_attach (ifp); - DBGLVL_PRINTK(3,"fxp_attach: calling ether_if_attach\n"); - ether_ifattach(ifp); - DBGLVL_PRINTK(3,"fxp_attach: return from ether_if_attach\n"); - -#ifdef NOTUSED - /* - * Tell the upper layer(s) we support long frames. - */ - ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); -#endif - /* - * Let the system queue as many packets as we have available - * TX descriptors. - */ - ifp->if_snd.ifq_maxlen = FXP_NTXCB - 1; - - splx(s); - return (0); - -failmem: - device_printf(dev, "Failed to malloc memory\n"); - error = ENOMEM; -#ifdef NOTUSED -fail: -#endif - splx(s); - fxp_release(sc); - return (error); -} - -/* - * release all resources - */ -static void -fxp_release(struct fxp_softc *sc) -{ - -#ifdef NOTUSED - bus_generic_detach(sc->dev); - if (sc->miibus) - device_delete_child(sc->dev, sc->miibus); -#endif - if (sc->cbl_base) - free(sc->cbl_base, M_DEVBUF); - if (sc->fxp_stats) - free(sc->fxp_stats, M_DEVBUF); - if (sc->mcsp) - free(sc->mcsp, M_DEVBUF); - if (sc->rfa_headm) - m_freem(sc->rfa_headm); - -#ifdef NOTUSED - if (sc->ih) - bus_teardown_intr(sc->dev, sc->irq, sc->ih); - if (sc->irq) - bus_release_resource(sc->dev, SYS_RES_IRQ, 0, sc->irq); - if (sc->mem) - bus_release_resource(sc->dev, sc->rtp, sc->rgd, sc->mem); - mtx_destroy(&sc->sc_mtx); -#endif -} - -#if NOTUSED -/* - * Detach interface. - */ -static int -fxp_detach(device_t dev) -{ - struct fxp_softc *sc = device_get_softc(dev); - int s; - - /* disable interrupts */ - CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, FXP_SCB_INTR_DISABLE); - - s = splimp(); - - /* - * Stop DMA and drop transmit queue. - */ - fxp_stop(sc); - - /* - * Close down routes etc. - */ - ether_ifdetach(&sc->arpcom.ac_if, ETHER_BPF_SUPPORTED); - - /* - * Free all media structures. - */ - ifmedia_removeall(&sc->sc_media); - - splx(s); - - /* Release our allocated resources. */ - fxp_release(sc); - - return (0); -} - -/* - * Device shutdown routine. Called at system shutdown after sync. The - * main purpose of this routine is to shut off receiver DMA so that - * kernel memory doesn't get clobbered during warmboot. - */ -static int -fxp_shutdown(device_t dev) -{ - /* - * Make sure that DMA is disabled prior to reboot. Not doing - * do could allow DMA to corrupt kernel memory during the - * reboot before the driver initializes. - */ - fxp_stop((struct fxp_softc *) device_get_softc(dev)); - return (0); -} -#endif - -/* - * Show interface statistics - */ -static void -fxp_stats(struct fxp_softc *sc) -{ - struct ifnet *ifp = &sc->sc_if; - - printf (" Output packets:%-8" PRIu64, ifp->if_opackets); - printf (" Collisions:%-8" PRIu64, ifp->if_collisions); - printf (" Output errors:%-8" PRIu64 "\n", ifp->if_oerrors); - printf (" Input packets:%-8" PRIu64, ifp->if_ipackets); - printf (" Input errors:%-8" PRIu64 "\n", ifp->if_ierrors); -} - -static void -fxp_eeprom_shiftin(struct fxp_softc *sc, int data, int length) -{ - u_int16_t reg; - int x; - - /* - * Shift in data. - */ - for (x = 1 << (length - 1); x; x >>= 1) { - if (data & x) - reg = FXP_EEPROM_EECS | FXP_EEPROM_EEDI; - else - reg = FXP_EEPROM_EECS; - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg); - DELAY(1); - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg | FXP_EEPROM_EESK); - DELAY(1); - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg); - DELAY(1); - } -} - -/* - * Read from the serial EEPROM. Basically, you manually shift in - * the read opcode (one bit at a time) and then shift in the address, - * and then you shift out the data (all of this one bit at a time). - * The word size is 16 bits, so you have to provide the address for - * every 16 bits of data. - */ -static u_int16_t -fxp_eeprom_getword(struct fxp_softc *sc, int offset, int autosize) -{ - u_int16_t reg, data; - int x; - - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS); - /* - * Shift in read opcode. - */ - fxp_eeprom_shiftin(sc, FXP_EEPROM_OPC_READ, 3); - /* - * Shift in address. - */ - data = 0; - for (x = 1 << (sc->eeprom_size - 1); x; x >>= 1) { - if (offset & x) - reg = FXP_EEPROM_EECS | FXP_EEPROM_EEDI; - else - reg = FXP_EEPROM_EECS; - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg); - DELAY(1); - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg | FXP_EEPROM_EESK); - DELAY(1); - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg); - DELAY(1); - reg = CSR_READ_2(sc, FXP_CSR_EEPROMCONTROL) & FXP_EEPROM_EEDO; - data++; - if (autosize && reg == 0) { - sc->eeprom_size = data; - break; - } - } - /* - * Shift out data. - */ - data = 0; - reg = FXP_EEPROM_EECS; - for (x = 1 << 15; x; x >>= 1) { - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg | FXP_EEPROM_EESK); - DELAY(1); - if (CSR_READ_2(sc, FXP_CSR_EEPROMCONTROL) & FXP_EEPROM_EEDO) - data |= x; - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg); - DELAY(1); - } - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0); - DELAY(1); - - return (data); -} - -static void -fxp_eeprom_putword(struct fxp_softc *sc, int offset, u_int16_t data) -{ - int i; - - /* - * Erase/write enable. - */ - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS); - fxp_eeprom_shiftin(sc, 0x4, 3); - fxp_eeprom_shiftin(sc, 0x03 << (sc->eeprom_size - 2), sc->eeprom_size); - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0); - DELAY(1); - /* - * Shift in write opcode, address, data. - */ - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS); - fxp_eeprom_shiftin(sc, FXP_EEPROM_OPC_WRITE, 3); - fxp_eeprom_shiftin(sc, offset, sc->eeprom_size); - fxp_eeprom_shiftin(sc, data, 16); - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0); - DELAY(1); - /* - * Wait for EEPROM to finish up. - */ - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS); - DELAY(1); - for (i = 0; i < 1000; i++) { - if (CSR_READ_2(sc, FXP_CSR_EEPROMCONTROL) & FXP_EEPROM_EEDO) - break; - DELAY(50); - } - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0); - DELAY(1); - /* - * Erase/write disable. - */ - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS); - fxp_eeprom_shiftin(sc, 0x4, 3); - fxp_eeprom_shiftin(sc, 0, sc->eeprom_size); - CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0); - DELAY(1); -} - -/* - * From NetBSD: - * - * Figure out EEPROM size. - * - * 559's can have either 64-word or 256-word EEPROMs, the 558 - * datasheet only talks about 64-word EEPROMs, and the 557 datasheet - * talks about the existance of 16 to 256 word EEPROMs. - * - * The only known sizes are 64 and 256, where the 256 version is used - * by CardBus cards to store CIS information. - * - * The address is shifted in msb-to-lsb, and after the last - * address-bit the EEPROM is supposed to output a `dummy zero' bit, - * after which follows the actual data. We try to detect this zero, by - * probing the data-out bit in the EEPROM control register just after - * having shifted in a bit. If the bit is zero, we assume we've - * shifted enough address bits. The data-out should be tri-state, - * before this, which should translate to a logical one. - */ -static void -fxp_autosize_eeprom(struct fxp_softc *sc) -{ - - /* guess maximum size of 256 words */ - sc->eeprom_size = 8; - - /* autosize */ - (void) fxp_eeprom_getword(sc, 0, 1); -} - -static void -fxp_read_eeprom(struct fxp_softc *sc, u_short *data, int offset, int words) -{ - int i; - - for (i = 0; i < words; i++) { - data[i] = fxp_eeprom_getword(sc, offset + i, 0); - DBGLVL_PRINTK(4,"fxp_eeprom_read(off=0x%x)=0x%x\n", - offset+i,data[i]); - } -} - -static void -fxp_write_eeprom(struct fxp_softc *sc, u_short *data, int offset, int words) -{ - int i; - - for (i = 0; i < words; i++) - fxp_eeprom_putword(sc, offset + i, data[i]); - DBGLVL_PRINTK(4,"fxp_eeprom_write(off=0x%x,0x%x)\n", - offset+i,data[i]); -} - -/* - * Start packet transmission on the interface. - */ -static void -fxp_start(struct ifnet *ifp) -{ - struct fxp_softc *sc = ifp->if_softc; - struct fxp_cb_tx *txp; - - DBGLVL_PRINTK(3,"fxp_start called\n"); - - /* - * See if we need to suspend xmit until the multicast filter - * has been reprogrammed (which can only be done at the head - * of the command chain). - */ - if (sc->need_mcsetup) { - DBGLVL_PRINTK(3,"fxp_start need_mcsetup\n"); - return; - } - - txp = NULL; - - /* - * We're finished if there is nothing more to add to the list or if - * we're all filled up with buffers to transmit. - * NOTE: One TxCB is reserved to guarantee that fxp_mc_setup() can add - * a NOP command when needed. - */ - while (ifp->if_snd.ifq_head != NULL && sc->tx_queued < FXP_NTXCB - 1) { - struct mbuf *m, *mb_head; - int segment; - - /* - * Grab a packet to transmit. - */ - IF_DEQUEUE(&ifp->if_snd, mb_head); - - /* - * Get pointer to next available tx desc. - */ - txp = sc->cbl_last->next; - - /* - * Go through each of the mbufs in the chain and initialize - * the transmit buffer descriptors with the physical address - * and size of the mbuf. - */ -tbdinit: - for (m = mb_head, segment = 0; m != NULL; m = m->m_next) { - if (m->m_len != 0) { - if (segment == FXP_NTXSEG) - break; - txp->tbd[segment].tb_addr = - vtophys(mtod(m, vm_offset_t)); - txp->tbd[segment].tb_size = m->m_len; - segment++; - } - } - if (m != NULL) { - struct mbuf *mn; - - /* - * We ran out of segments. We have to recopy this - * mbuf chain first. Bail out if we can't get the - * new buffers. - */ - MGETHDR(mn, M_DONTWAIT, MT_DATA); - if (mn == NULL) { - m_freem(mb_head); - break; - } - if (mb_head->m_pkthdr.len > MHLEN) { - MCLGET(mn, M_DONTWAIT); - if ((mn->m_flags & M_EXT) == 0) { - m_freem(mn); - m_freem(mb_head); - break; - } - } - m_copydata(mb_head, 0, mb_head->m_pkthdr.len, - mtod(mn, caddr_t)); - mn->m_pkthdr.len = mn->m_len = mb_head->m_pkthdr.len; - m_freem(mb_head); - mb_head = mn; - goto tbdinit; - } - - txp->tbd_number = segment; - txp->mb_head = mb_head; - txp->cb_status = 0; - if (sc->tx_queued != FXP_CXINT_THRESH - 1) { - txp->cb_command = - FXP_CB_COMMAND_XMIT | FXP_CB_COMMAND_SF | - FXP_CB_COMMAND_S; - } else { - txp->cb_command = - FXP_CB_COMMAND_XMIT | FXP_CB_COMMAND_SF | - FXP_CB_COMMAND_S | FXP_CB_COMMAND_I; - /* - * Set a 5 second timer just in case we don't hear - * from the card again. - */ - ifp->if_timer = 5; - } - txp->tx_threshold = tx_threshold; - - /* - * Advance the end of list forward. - */ - -#ifdef __alpha__ - /* - * On platforms which can't access memory in 16-bit - * granularities, we must prevent the card from DMA'ing - * up the status while we update the command field. - * This could cause us to overwrite the completion status. - */ - atomic_clear_short(&sc->cbl_last->cb_command, - FXP_CB_COMMAND_S); -#else - sc->cbl_last->cb_command &= ~FXP_CB_COMMAND_S; -#endif /*__alpha__*/ - sc->cbl_last = txp; - - /* - * Advance the beginning of the list forward if there are - * no other packets queued (when nothing is queued, cbl_first - * sits on the last TxCB that was sent out). - */ - if (sc->tx_queued == 0) - sc->cbl_first = txp; - - sc->tx_queued++; - -#ifdef NOTUSED - /* - * Pass packet to bpf if there is a listener. - */ - if (ifp->if_bpf) - bpf_mtap(ifp, mb_head); -#endif - } - - /* - * We're finished. If we added to the list, issue a RESUME to get DMA - * going again if suspended. - */ - if (txp != NULL) { - fxp_scb_wait(sc); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_RESUME); - } - - /* - * reenable interrupts - */ - RTEMS_COMPILER_MEMORY_BARRIER(); - CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL,0); - bsp_interrupt_vector_enable(sc->irq_num); - RTEMS_COMPILER_MEMORY_BARRIER(); -} - -/* - * Process interface interrupts. - */ -static void fxp_intr(void *arg) -{ - /* - * Obtain device state - */ - struct fxp_softc *sc = (struct fxp_softc *)arg; - - /* - * disable interrupts - */ - CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, FXP_SCB_INTR_DISABLE); - /* - * send event to deamon - */ - rtems_bsdnet_event_send (sc->daemonTid, INTERRUPT_EVENT); -} - -static void fxp_daemon(void *xsc) -{ - struct fxp_softc *sc = xsc; - struct ifnet *ifp = &sc->sc_if; - u_int8_t statack; - rtems_event_set events; - -#ifdef NOTUSED - if (sc->suspended) { - return; - } -#endif - for (;;) { - - DBGLVL_PRINTK(4,"fxp_daemon waiting for event, INTRCNTL 0x%02x\n", - CSR_READ_1(sc, FXP_CSR_SCB_INTRCNTL)); - /* - * wait for event to receive from interrupt function - */ - rtems_bsdnet_event_receive (INTERRUPT_EVENT, - RTEMS_WAIT|RTEMS_EVENT_ANY, - RTEMS_NO_TIMEOUT, - &events); - while ((statack = CSR_READ_1(sc, FXP_CSR_SCB_STATACK)) != 0) { - DBGLVL_PRINTK(4,"fxp_daemon: processing event, statack = 0x%x\n", - statack); -#ifdef NOTUSED - /* - * It should not be possible to have all bits set; the - * FXP_SCB_INTR_SWI bit always returns 0 on a read. If - * all bits are set, this may indicate that the card has - * been physically ejected, so ignore it. - */ - if (statack == 0xff) - return; -#endif - - /* - * First ACK all the interrupts in this pass. - */ - CSR_WRITE_1(sc, FXP_CSR_SCB_STATACK, statack); - - /* - * Free any finished transmit mbuf chains. - * - * Handle the CNA event likt a CXTNO event. It used to - * be that this event (control unit not ready) was not - * encountered, but it is now with the SMPng modifications. - * The exact sequence of events that occur when the interface - * is brought up are different now, and if this event - * goes unhandled, the configuration/rxfilter setup sequence - * can stall for several seconds. The result is that no - * packets go out onto the wire for about 5 to 10 seconds - * after the interface is ifconfig'ed for the first time. - */ - if (statack & (FXP_SCB_STATACK_CXTNO | FXP_SCB_STATACK_CNA)) { - struct fxp_cb_tx *txp; - - for (txp = sc->cbl_first; sc->tx_queued && - (txp->cb_status & FXP_CB_STATUS_C) != 0; - txp = txp->next) { - if (txp->mb_head != NULL) { - m_freem(txp->mb_head); - txp->mb_head = NULL; - } - sc->tx_queued--; - } - sc->cbl_first = txp; - ifp->if_timer = 0; - if (sc->tx_queued == 0) { - if (sc->need_mcsetup) - fxp_mc_setup(sc); - } - /* - * Try to start more packets transmitting. - */ - if (ifp->if_snd.ifq_head != NULL) - fxp_start(ifp); - } - /* - * Process receiver interrupts. If a no-resource (RNR) - * condition exists, get whatever packets we can and - * re-start the receiver. - */ - if (statack & (FXP_SCB_STATACK_FR | FXP_SCB_STATACK_RNR)) { - struct mbuf *m; - struct fxp_rfa *rfa; -rcvloop: - m = sc->rfa_headm; - rfa = (struct fxp_rfa *)(m->m_ext.ext_buf + - RFA_ALIGNMENT_FUDGE); - - if (rfa->rfa_status & FXP_RFA_STATUS_C) { - /* - * Remove first packet from the chain. - */ - sc->rfa_headm = m->m_next; - m->m_next = NULL; - - /* - * Add a new buffer to the receive chain. - * If this fails, the old buffer is recycled - * instead. - */ - if (fxp_add_rfabuf(sc, m) == 0) { - struct ether_header *eh; - int total_len; - - total_len = rfa->actual_size & - (MCLBYTES - 1); - if (total_len < - sizeof(struct ether_header)) { - m_freem(m); - goto rcvloop; - } - - /* - * Drop the packet if it has CRC - * errors. This test is only needed - * when doing 802.1q VLAN on the 82557 - * chip. - */ - if (rfa->rfa_status & - FXP_RFA_STATUS_CRC) { - m_freem(m); - goto rcvloop; - } - - m->m_pkthdr.rcvif = ifp; - m->m_pkthdr.len = m->m_len = total_len; - eh = mtod(m, struct ether_header *); - m->m_data += - sizeof(struct ether_header); - m->m_len -= - sizeof(struct ether_header); - m->m_pkthdr.len = m->m_len; - ether_input(ifp, eh, m); - } - goto rcvloop; - } - if (statack & FXP_SCB_STATACK_RNR) { - fxp_scb_wait(sc); - CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, - vtophys(sc->rfa_headm->m_ext.ext_buf) + - RFA_ALIGNMENT_FUDGE); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_RU_START); - } - } - } - /* - * reenable interrupts - */ - RTEMS_COMPILER_MEMORY_BARRIER(); - CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL,0); - RTEMS_COMPILER_MEMORY_BARRIER(); - } -} - -/* - * Update packet in/out/collision statistics. The i82557 doesn't - * allow you to access these counters without doing a fairly - * expensive DMA to get _all_ of the statistics it maintains, so - * we do this operation here only once per second. The statistics - * counters in the kernel are updated from the previous dump-stats - * DMA and then a new dump-stats DMA is started. The on-chip - * counters are zeroed when the DMA completes. If we can't start - * the DMA immediately, we don't wait - we just prepare to read - * them again next time. - */ -static void -fxp_tick(void *xsc) -{ - struct fxp_softc *sc = xsc; - struct ifnet *ifp = &sc->sc_if; - struct fxp_stats *sp = sc->fxp_stats; - struct fxp_cb_tx *txp; - int s; - - DBGLVL_PRINTK(4,"fxp_tick called\n"); - - ifp->if_opackets += sp->tx_good; - ifp->if_collisions += sp->tx_total_collisions; - if (sp->rx_good) { - ifp->if_ipackets += sp->rx_good; - sc->rx_idle_secs = 0; - } else { - /* - * Receiver's been idle for another second. - */ - sc->rx_idle_secs++; - } - ifp->if_ierrors += - sp->rx_crc_errors + - sp->rx_alignment_errors + - sp->rx_rnr_errors + - sp->rx_overrun_errors; - /* - * If any transmit underruns occured, bump up the transmit - * threshold by another 512 bytes (64 * 8). - */ - if (sp->tx_underruns) { - ifp->if_oerrors += sp->tx_underruns; - if (tx_threshold < 192) - tx_threshold += 64; - } - s = splimp(); - /* - * Release any xmit buffers that have completed DMA. This isn't - * strictly necessary to do here, but it's advantagous for mbufs - * with external storage to be released in a timely manner rather - * than being defered for a potentially long time. This limits - * the delay to a maximum of one second. - */ - for (txp = sc->cbl_first; sc->tx_queued && - (txp->cb_status & FXP_CB_STATUS_C) != 0; - txp = txp->next) { - if (txp->mb_head != NULL) { - m_freem(txp->mb_head); - txp->mb_head = NULL; - } - sc->tx_queued--; - } - sc->cbl_first = txp; - /* - * If we haven't received any packets in FXP_MAC_RX_IDLE seconds, - * then assume the receiver has locked up and attempt to clear - * the condition by reprogramming the multicast filter. This is - * a work-around for a bug in the 82557 where the receiver locks - * up if it gets certain types of garbage in the syncronization - * bits prior to the packet header. This bug is supposed to only - * occur in 10Mbps mode, but has been seen to occur in 100Mbps - * mode as well (perhaps due to a 10/100 speed transition). - */ - if (sc->rx_idle_secs > FXP_MAX_RX_IDLE) { - sc->rx_idle_secs = 0; - fxp_mc_setup(sc); - } - /* - * If there is no pending command, start another stats - * dump. Otherwise punt for now. - */ - if (CSR_READ_1(sc, FXP_CSR_SCB_COMMAND) == 0) { - /* - * Start another stats dump. - */ - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_DUMPRESET); - } else { - /* - * A previous command is still waiting to be accepted. - * Just zero our copy of the stats and wait for the - * next timer event to update them. - */ - sp->tx_good = 0; - sp->tx_underruns = 0; - sp->tx_total_collisions = 0; - - sp->rx_good = 0; - sp->rx_crc_errors = 0; - sp->rx_alignment_errors = 0; - sp->rx_rnr_errors = 0; - sp->rx_overrun_errors = 0; - } -#ifdef NOTUSED - if (sc->miibus != NULL) - mii_tick(device_get_softc(sc->miibus)); -#endif - splx(s); - /* - * Schedule another timeout one second from now. - */ - if (sc->stat_ch == fxp_timeout_running) { - timeout(fxp_tick, sc, hz); - } - else if (sc->stat_ch == fxp_timeout_stop_rq) { - sc->stat_ch = fxp_timeout_stopped; - } -} - -/* - * Stop the interface. Cancels the statistics updater and resets - * the interface. - */ -static void -fxp_stop(struct fxp_softc *sc) -{ - struct ifnet *ifp = &sc->sc_if; - struct fxp_cb_tx *txp; - int i; - - DBGLVL_PRINTK(2,"fxp_stop called\n"); - - ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); - ifp->if_timer = 0; - - /* - * stop stats updater. - */ - if (sc->stat_ch == fxp_timeout_running) { - DBGLVL_PRINTK(3,"fxp_stop: trying to stop stat update tick\n"); - sc->stat_ch = fxp_timeout_stop_rq; - while(sc->stat_ch != fxp_timeout_stopped) { - rtems_bsdnet_semaphore_release(); - rtems_task_wake_after(fxp_ticksPerSecond); - rtems_bsdnet_semaphore_obtain(); - } - DBGLVL_PRINTK(3,"fxp_stop: stat update tick stopped\n"); - } - /* - * Issue software reset - */ - DBGLVL_PRINTK(3,"fxp_stop: issue software reset\n"); - CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SELECTIVE_RESET); - DELAY(10); - - /* - * Release any xmit buffers. - */ - DBGLVL_PRINTK(3,"fxp_stop: releasing xmit buffers\n"); - txp = sc->cbl_base; - if (txp != NULL) { - for (i = 0; i < FXP_NTXCB; i++) { - if (txp[i].mb_head != NULL) { - m_freem(txp[i].mb_head); - txp[i].mb_head = NULL; - } - } - } - sc->tx_queued = 0; - - /* - * Free all the receive buffers then reallocate/reinitialize - */ - DBGLVL_PRINTK(3,"fxp_stop: free and reinit all receive buffers\n"); - if (sc->rfa_headm != NULL) - m_freem(sc->rfa_headm); - sc->rfa_headm = NULL; - sc->rfa_tailm = NULL; - for (i = 0; i < FXP_NRFABUFS; i++) { - if (fxp_add_rfabuf(sc, NULL) != 0) { - /* - * This "can't happen" - we're at splimp() - * and we just freed all the buffers we need - * above. - */ - panic("fxp_stop: no buffers!"); - } - } - DBGLVL_PRINTK(2,"fxp_stop: finished\n"); -} - -/* - * Watchdog/transmission transmit timeout handler. Called when a - * transmission is started on the interface, but no interrupt is - * received before the timeout. This usually indicates that the - * card has wedged for some reason. - */ -static void -fxp_watchdog(struct ifnet *ifp) -{ - struct fxp_softc *sc = ifp->if_softc; - - device_printf(sc->dev, "device timeout\n"); - ifp->if_oerrors++; - - fxp_init(sc); -} - -static void -fxp_init(void *xsc) -{ - struct fxp_softc *sc = xsc; - struct ifnet *ifp = &sc->sc_if; - struct fxp_cb_config *cbp; - struct fxp_cb_ias *cb_ias; - struct fxp_cb_tx *txp; - int i, prm, s; - rtems_status_code statcode; - -rtems_task_wake_after(100); - DBGLVL_PRINTK(2,"fxp_init called\n"); - - s = splimp(); - /* - * Cancel any pending I/O - */ - /* - * E. Norum 2004-10-11 - * Add line suggested by "Eugene Denisov" <dea@sendmail.ru>. - * Prevents lockup at initialization. - */ - sc->stat_ch = fxp_timeout_stopped; - fxp_stop(sc); - - prm = (ifp->if_flags & IFF_PROMISC) ? 1 : 0; - - DBGLVL_PRINTK(5,"fxp_init: Initializing base of CBL and RFA memory\n"); - /* - * Initialize base of CBL and RFA memory. Loading with zero - * sets it up for regular linear addressing. - */ - CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, 0); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_BASE); - - fxp_scb_wait(sc); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_RU_BASE); - - /* - * Initialize base of dump-stats buffer. - */ - DBGLVL_PRINTK(5,"fxp_init: Initializing base of dump-stats buffer\n"); - fxp_scb_wait(sc); - CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, vtophys(sc->fxp_stats)); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_DUMP_ADR); - - /* - * We temporarily use memory that contains the TxCB list to - * construct the config CB. The TxCB list memory is rebuilt - * later. - */ - cbp = (struct fxp_cb_config *) sc->cbl_base; - DBGLVL_PRINTK(5,"fxp_init: cbp = 0x%x\n",cbp); - - /* - * This memcpy is kind of disgusting, but there are a bunch of must be - * zero and must be one bits in this structure and this is the easiest - * way to initialize them all to proper values. - */ - memcpy( (void *)(u_int32_t*)(volatile void *)&cbp->cb_status, - fxp_cb_config_template, - sizeof(fxp_cb_config_template)); - - cbp->cb_status = 0; - cbp->cb_command = FXP_CB_COMMAND_CONFIG | FXP_CB_COMMAND_EL; - cbp->link_addr = -1; /* (no) next command */ - cbp->byte_count = 22; /* (22) bytes to config */ - cbp->rx_fifo_limit = 8; /* rx fifo threshold (32 bytes) */ - cbp->tx_fifo_limit = 0; /* tx fifo threshold (0 bytes) */ - cbp->adaptive_ifs = 0; /* (no) adaptive interframe spacing */ - cbp->mwi_enable = sc->flags & FXP_FLAG_MWI_ENABLE ? 1 : 0; - cbp->type_enable = 0; /* actually reserved */ - cbp->read_align_en = sc->flags & FXP_FLAG_READ_ALIGN ? 1 : 0; - cbp->end_wr_on_cl = sc->flags & FXP_FLAG_WRITE_ALIGN ? 1 : 0; - cbp->rx_dma_bytecount = 0; /* (no) rx DMA max */ - cbp->tx_dma_bytecount = 0; /* (no) tx DMA max */ - cbp->dma_mbce = 0; /* (disable) dma max counters */ - cbp->late_scb = 0; /* (don't) defer SCB update */ - cbp->direct_dma_dis = 1; /* disable direct rcv dma mode */ - cbp->tno_int_or_tco_en =0; /* (disable) tx not okay interrupt */ - cbp->ci_int = 1; /* interrupt on CU idle */ - cbp->ext_txcb_dis = sc->flags & FXP_FLAG_EXT_TXCB ? 0 : 1; - cbp->ext_stats_dis = 1; /* disable extended counters */ - cbp->keep_overrun_rx = 0; /* don't pass overrun frames to host */ - cbp->save_bf = sc->chip == FXP_CHIP_82557 ? 1 : prm; - cbp->disc_short_rx = !prm; /* discard short packets */ - cbp->underrun_retry = 1; /* retry mode (once) on DMA underrun */ - cbp->two_frames = 0; /* do not limit FIFO to 2 frames */ - cbp->dyn_tbd = 0; /* (no) dynamic TBD mode */ - cbp->mediatype = sc->flags & FXP_FLAG_SERIAL_MEDIA ? 0 : 1; - cbp->csma_dis = 0; /* (don't) disable link */ - cbp->tcp_udp_cksum = 0; /* (don't) enable checksum */ - cbp->vlan_tco = 0; /* (don't) enable vlan wakeup */ - cbp->link_wake_en = 0; /* (don't) assert PME# on link change */ - cbp->arp_wake_en = 0; /* (don't) assert PME# on arp */ - cbp->mc_wake_en = 0; /* (don't) enable PME# on mcmatch */ - cbp->nsai = 1; /* (don't) disable source addr insert */ - cbp->preamble_length = 2; /* (7 byte) preamble */ - cbp->loopback = 0; /* (don't) loopback */ - cbp->linear_priority = 0; /* (normal CSMA/CD operation) */ - cbp->linear_pri_mode = 0; /* (wait after xmit only) */ - cbp->interfrm_spacing = 6; /* (96 bits of) interframe spacing */ - cbp->promiscuous = prm; /* promiscuous mode */ - cbp->bcast_disable = 0; /* (don't) disable broadcasts */ - cbp->wait_after_win = 0; /* (don't) enable modified backoff alg*/ - cbp->ignore_ul = 0; /* consider U/L bit in IA matching */ - cbp->crc16_en = 0; /* (don't) enable crc-16 algorithm */ - cbp->crscdt = sc->flags & FXP_FLAG_SERIAL_MEDIA ? 1 : 0; - - cbp->stripping = !prm; /* truncate rx packet to byte count */ - cbp->padding = 1; /* (do) pad short tx packets */ - cbp->rcv_crc_xfer = 0; /* (don't) xfer CRC to host */ - cbp->long_rx_en = sc->flags & FXP_FLAG_LONG_PKT_EN ? 1 : 0; - cbp->ia_wake_en = 0; /* (don't) wake up on address match */ - cbp->magic_pkt_dis = 0; /* (don't) disable magic packet */ - /* must set wake_en in PMCSR also */ - cbp->force_fdx = 0; /* (don't) force full duplex */ - cbp->fdx_pin_en = 1; /* (enable) FDX# pin */ - cbp->multi_ia = 0; /* (don't) accept multiple IAs */ - cbp->mc_all = sc->flags & FXP_FLAG_ALL_MCAST ? 1 : 0; - - DBGLVL_PRINTK(5,"fxp_init: cbp initialized\n"); - if (sc->chip == FXP_CHIP_82557) { - /* - * The 82557 has no hardware flow control, the values - * below are the defaults for the chip. - */ - cbp->fc_delay_lsb = 0; - cbp->fc_delay_msb = 0x40; - cbp->pri_fc_thresh = 3; - cbp->tx_fc_dis = 0; - cbp->rx_fc_restop = 0; - cbp->rx_fc_restart = 0; - cbp->fc_filter = 0; - cbp->pri_fc_loc = 1; - } else { - cbp->fc_delay_lsb = 0x1f; - cbp->fc_delay_msb = 0x01; - cbp->pri_fc_thresh = 3; - cbp->tx_fc_dis = 0; /* enable transmit FC */ - cbp->rx_fc_restop = 1; /* enable FC restop frames */ - cbp->rx_fc_restart = 1; /* enable FC restart frames */ - cbp->fc_filter = !prm; /* drop FC frames to host */ - cbp->pri_fc_loc = 1; /* FC pri location (byte31) */ - } - - /* - * Start the config command/DMA. - */ - DBGLVL_PRINTK(5,"fxp_init: starting config command/DMA\n"); - fxp_scb_wait(sc); - CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, vtophys(&cbp->cb_status)); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START); - /* ...and wait for it to complete. */ - fxp_dma_wait(&cbp->cb_status, sc); - - /* - * Now initialize the station address. Temporarily use the TxCB - * memory area like we did above for the config CB. - */ - DBGLVL_PRINTK(5,"fxp_init: initialize station address\n"); - cb_ias = (struct fxp_cb_ias *) sc->cbl_base; - cb_ias->cb_status = 0; - cb_ias->cb_command = FXP_CB_COMMAND_IAS | FXP_CB_COMMAND_EL; - cb_ias->link_addr = -1; - memcpy((void *)(u_int32_t*)(volatile void *)cb_ias->macaddr, - sc->arpcom.ac_enaddr, - sizeof(sc->arpcom.ac_enaddr)); - - /* - * Start the IAS (Individual Address Setup) command/DMA. - */ - DBGLVL_PRINTK(5,"fxp_init: start IAS command/DMA\n"); - fxp_scb_wait(sc); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START); - /* ...and wait for it to complete. */ - fxp_dma_wait(&cb_ias->cb_status, sc); - - /* - * Initialize transmit control block (TxCB) list. - */ - - DBGLVL_PRINTK(5,"fxp_init: initialize TxCB list\n"); - txp = sc->cbl_base; - memset(txp, 0, sizeof(struct fxp_cb_tx) * FXP_NTXCB); - for (i = 0; i < FXP_NTXCB; i++) { - txp[i].cb_status = FXP_CB_STATUS_C | FXP_CB_STATUS_OK; - txp[i].cb_command = FXP_CB_COMMAND_NOP; - txp[i].link_addr = - vtophys(&txp[(i + 1) & FXP_TXCB_MASK].cb_status); - if (sc->flags & FXP_FLAG_EXT_TXCB) - txp[i].tbd_array_addr = vtophys(&txp[i].tbd[2]); - else - txp[i].tbd_array_addr = vtophys(&txp[i].tbd[0]); - txp[i].next = &txp[(i + 1) & FXP_TXCB_MASK]; - } - /* - * Set the suspend flag on the first TxCB and start the control - * unit. It will execute the NOP and then suspend. - */ - DBGLVL_PRINTK(5,"fxp_init: setup suspend flag\n"); - txp->cb_command = FXP_CB_COMMAND_NOP | FXP_CB_COMMAND_S; - sc->cbl_first = sc->cbl_last = txp; - sc->tx_queued = 1; - - fxp_scb_wait(sc); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START); - - /* - * Initialize receiver buffer area - RFA. - */ - DBGLVL_PRINTK(5,"fxp_init: initialize RFA\n"); - fxp_scb_wait(sc); - CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, - vtophys(sc->rfa_headm->m_ext.ext_buf) + RFA_ALIGNMENT_FUDGE); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_RU_START); - -#ifdef NOTUSED - /* - * Set current media. - */ - if (sc->miibus != NULL) - mii_mediachg(device_get_softc(sc->miibus)); -#endif - - ifp->if_flags |= IFF_RUNNING; - ifp->if_flags &= ~IFF_OACTIVE; - - if (sc->daemonTid == 0) { - /* - * Start driver task - */ - sc->daemonTid = rtems_bsdnet_newproc ("FXPd", 4096, fxp_daemon, sc); - - /* - * Set up interrupts - */ - statcode = rtems_interrupt_handler_install( - sc->irq_num, - "fxp_intr", - RTEMS_INTERRUPT_SHARED, - fxp_intr, - sc - ); - - if ( statcode != RTEMS_SUCCESSFUL ) { - rtems_panic ("Can't attach fxp interrupt handler for irq %d\n", - sc->irq_num); - } - } - - /* - * Enable interrupts. - */ - CSR_WRITE_1(sc, FXP_CSR_SCB_INTRCNTL, 0); - splx(s); - - /* - * Start stats updater. - */ - sc->stat_ch = fxp_timeout_running; - DBGLVL_PRINTK(2,"fxp_init: stats updater timeout called with hz=%d\n", hz); - timeout(fxp_tick, sc, hz); - DBGLVL_PRINTK(2,"fxp_init finished\n"); -} - -#ifdef NOTUSED -static int -fxp_serial_ifmedia_upd(struct ifnet *ifp) -{ - - return (0); -} - -static void -fxp_serial_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) -{ - - ifmr->ifm_active = IFM_ETHER|IFM_MANUAL; -} - -/* - * Change media according to request. - */ -static int -fxp_ifmedia_upd(struct ifnet *ifp) -{ - struct fxp_softc *sc = ifp->if_softc; - struct mii_data *mii; - - mii = device_get_softc(sc->miibus); - mii_mediachg(mii); - return (0); -} - -/* - * Notify the world which media we're using. - */ -static void -fxp_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) -{ - struct fxp_softc *sc = ifp->if_softc; - struct mii_data *mii; - - mii = device_get_softc(sc->miibus); - mii_pollstat(mii); - ifmr->ifm_active = mii->mii_media_active; - ifmr->ifm_status = mii->mii_media_status; - - if (ifmr->ifm_status & IFM_10_T && sc->flags & FXP_FLAG_CU_RESUME_BUG) - sc->cu_resume_bug = 1; - else - sc->cu_resume_bug = 0; -} -#endif - -/* - * Add a buffer to the end of the RFA buffer list. - * Return 0 if successful, 1 for failure. A failure results in - * adding the 'oldm' (if non-NULL) on to the end of the list - - * tossing out its old contents and recycling it. - * The RFA struct is stuck at the beginning of mbuf cluster and the - * data pointer is fixed up to point just past it. - */ -static int -fxp_add_rfabuf(struct fxp_softc *sc, struct mbuf *oldm) -{ - u_int32_t v; - struct mbuf *m; - struct fxp_rfa *rfa, *p_rfa; - - DBGLVL_PRINTK(4,"fxp_add_rfabuf called\n"); - - MGETHDR(m, M_DONTWAIT, MT_DATA); - if (m != NULL) { - MCLGET(m, M_DONTWAIT); - if ((m->m_flags & M_EXT) == 0) { - m_freem(m); - if (oldm == NULL) - return 1; - m = oldm; - m->m_data = m->m_ext.ext_buf; - } - } else { - if (oldm == NULL) - return 1; - m = oldm; - m->m_data = m->m_ext.ext_buf; - } - - /* - * Move the data pointer up so that the incoming data packet - * will be 32-bit aligned. - */ - m->m_data += RFA_ALIGNMENT_FUDGE; - - /* - * Get a pointer to the base of the mbuf cluster and move - * data start past it. - */ - rfa = mtod(m, struct fxp_rfa *); - m->m_data += sizeof(struct fxp_rfa); - rfa->size = (u_int16_t)(MCLBYTES - sizeof(struct fxp_rfa) - RFA_ALIGNMENT_FUDGE); - - /* - * Initialize the rest of the RFA. Note that since the RFA - * is misaligned, we cannot store values directly. Instead, - * we use an optimized, inline copy. - */ - - rfa->rfa_status = 0; - rfa->rfa_control = FXP_RFA_CONTROL_EL; - rfa->actual_size = 0; - - v = -1; - fxp_lwcopy(&v, (volatile u_int32_t*) rfa->link_addr); - fxp_lwcopy(&v, (volatile u_int32_t*) rfa->rbd_addr); - - /* - * If there are other buffers already on the list, attach this - * one to the end by fixing up the tail to point to this one. - */ - if (sc->rfa_headm != NULL) { - p_rfa = (struct fxp_rfa *) (sc->rfa_tailm->m_ext.ext_buf + - RFA_ALIGNMENT_FUDGE); - sc->rfa_tailm->m_next = m; - v = vtophys(rfa); - fxp_lwcopy(&v, (volatile u_int32_t*) p_rfa->link_addr); - p_rfa->rfa_control = 0; - } else { - sc->rfa_headm = m; - } - sc->rfa_tailm = m; - - return (m == oldm); -} - -#ifdef NOTUSED -static volatile int -fxp_miibus_readreg(device_t dev, int phy, int reg) -{ - struct fxp_softc *sc = device_get_softc(dev); - int count = 10000; - int value; - - CSR_WRITE_4(sc, FXP_CSR_MDICONTROL, - (FXP_MDI_READ << 26) | (reg << 16) | (phy << 21)); - - while (((value = CSR_READ_4(sc, FXP_CSR_MDICONTROL)) & 0x10000000) == 0 - && count--) - DELAY(10); - - if (count <= 0) - device_printf(dev, "fxp_miibus_readreg: timed out\n"); - - return (value & 0xffff); -} - -static void -fxp_miibus_writereg(device_t dev, int phy, int reg, int value) -{ - struct fxp_softc *sc = device_get_softc(dev); - int count = 10000; - - CSR_WRITE_4(sc, FXP_CSR_MDICONTROL, - (FXP_MDI_WRITE << 26) | (reg << 16) | (phy << 21) | - (value & 0xffff)); - - while ((CSR_READ_4(sc, FXP_CSR_MDICONTROL) & 0x10000000) == 0 && - count--) - DELAY(10); - - if (count <= 0) - device_printf(dev, "fxp_miibus_writereg: timed out\n"); -} -#endif - -static int -fxp_ioctl(struct ifnet *ifp, ioctl_command_t command, caddr_t data) -{ - struct fxp_softc *sc = ifp->if_softc; -#ifdef NOTUSED - struct ifreq *ifr = (struct ifreq *)data; - struct mii_data *mii; -#endif - int s, error = 0; - - DBGLVL_PRINTK(2,"fxp_ioctl called\n"); - - s = splimp(); - - switch (command) { - case SIOCSIFADDR: - case SIOCGIFADDR: - case SIOCSIFMTU: - error = ether_ioctl(ifp, command, data); - break; - - case SIOCSIFFLAGS: - if (ifp->if_flags & IFF_ALLMULTI) - sc->flags |= FXP_FLAG_ALL_MCAST; - else - sc->flags &= ~FXP_FLAG_ALL_MCAST; - - /* - * If interface is marked up and not running, then start it. - * If it is marked down and running, stop it. - * XXX If it's up then re-initialize it. This is so flags - * such as IFF_PROMISC are handled. - */ - if (ifp->if_flags & IFF_UP) { - fxp_init(sc); - } else { - if (ifp->if_flags & IFF_RUNNING) - fxp_stop(sc); - } - break; - - case SIOCADDMULTI: - case SIOCDELMULTI: - if (ifp->if_flags & IFF_ALLMULTI) - sc->flags |= FXP_FLAG_ALL_MCAST; - else - sc->flags &= ~FXP_FLAG_ALL_MCAST; - /* - * Multicast list has changed; set the hardware filter - * accordingly. - */ - if ((sc->flags & FXP_FLAG_ALL_MCAST) == 0) - fxp_mc_setup(sc); - /* - * fxp_mc_setup() can set FXP_FLAG_ALL_MCAST, so check it - * again rather than else {}. - */ - if (sc->flags & FXP_FLAG_ALL_MCAST) - fxp_init(sc); - error = 0; - break; - -#ifdef NOTUSED - case SIOCSIFMEDIA: - case SIOCGIFMEDIA: - if (sc->miibus != NULL) { - mii = device_get_softc(sc->miibus); - error = ifmedia_ioctl(ifp, ifr, - &mii->mii_media, command); - } else { - error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, command); - } - break; -#endif - - case SIO_RTEMS_SHOW_STATS: - fxp_stats(sc); - break; - - default: - error = EINVAL; - } - splx(s); - return (error); -} - -/* - * Program the multicast filter. - * - * We have an artificial restriction that the multicast setup command - * must be the first command in the chain, so we take steps to ensure - * this. By requiring this, it allows us to keep up the performance of - * the pre-initialized command ring (esp. link pointers) by not actually - * inserting the mcsetup command in the ring - i.e. its link pointer - * points to the TxCB ring, but the mcsetup descriptor itself is not part - * of it. We then can do 'CU_START' on the mcsetup descriptor and have it - * lead into the regular TxCB ring when it completes. - * - * This function must be called at splimp. - */ -static void -fxp_mc_setup(struct fxp_softc *sc) -{ - struct fxp_cb_mcs *mcsp = sc->mcsp; - struct ifnet *ifp = &sc->sc_if; -#ifdef NOTUSED - struct ifmultiaddr *ifma; -#endif - int nmcasts; - int count; - - DBGLVL_PRINTK(2,"fxp_mc_setup called\n"); - - /* - * If there are queued commands, we must wait until they are all - * completed. If we are already waiting, then add a NOP command - * with interrupt option so that we're notified when all commands - * have been completed - fxp_start() ensures that no additional - * TX commands will be added when need_mcsetup is true. - */ - if (sc->tx_queued) { - struct fxp_cb_tx *txp; - - /* - * need_mcsetup will be true if we are already waiting for the - * NOP command to be completed (see below). In this case, bail. - */ - if (sc->need_mcsetup) - return; - sc->need_mcsetup = 1; - - /* - * Add a NOP command with interrupt so that we are notified when all - * TX commands have been processed. - */ - txp = sc->cbl_last->next; - txp->mb_head = NULL; - txp->cb_status = 0; - txp->cb_command = FXP_CB_COMMAND_NOP | - FXP_CB_COMMAND_S | FXP_CB_COMMAND_I; - /* - * Advance the end of list forward. - */ - sc->cbl_last->cb_command &= ~FXP_CB_COMMAND_S; - sc->cbl_last = txp; - sc->tx_queued++; - /* - * Issue a resume in case the CU has just suspended. - */ - fxp_scb_wait(sc); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_RESUME); - /* - * Set a 5 second timer just in case we don't hear from the - * card again. - */ - ifp->if_timer = 5; - - return; - } - sc->need_mcsetup = 0; - - /* - * Initialize multicast setup descriptor. - */ - mcsp->next = sc->cbl_base; - mcsp->mb_head = NULL; - mcsp->cb_status = 0; - mcsp->cb_command = FXP_CB_COMMAND_MCAS | - FXP_CB_COMMAND_S | FXP_CB_COMMAND_I; - mcsp->link_addr = vtophys(&sc->cbl_base->cb_status); - - nmcasts = 0; -#ifdef NOTUSED /* FIXME: Multicast not supported? */ - if ((sc->flags & FXP_FLAG_ALL_MCAST) == 0) { -#if __FreeBSD_version < 500000 - LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { -#else - TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { -#endif - if (ifma->ifma_addr->sa_family != AF_LINK) - continue; - if (nmcasts >= MAXMCADDR) { - sc->flags |= FXP_FLAG_ALL_MCAST; - nmcasts = 0; - break; - } - memcpy((void *)(uintptr_t)(volatile void *) - &sc->mcsp->mc_addr[nmcasts][0], - LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 6); - nmcasts++; - } - } -#endif - mcsp->mc_cnt = nmcasts * 6; - sc->cbl_first = sc->cbl_last = (struct fxp_cb_tx *) mcsp; - sc->tx_queued = 1; - - /* - * Wait until command unit is not active. This should never - * be the case when nothing is queued, but make sure anyway. - */ - count = 100; - while ((CSR_READ_1(sc, FXP_CSR_SCB_RUSCUS) >> 6) == - FXP_SCB_CUS_ACTIVE && --count) - DELAY(10); - if (count == 0) { - device_printf(sc->dev, "command queue timeout\n"); - return; - } - - /* - * Start the multicast setup command. - */ - fxp_scb_wait(sc); - CSR_WRITE_4(sc, FXP_CSR_SCB_GENERAL, vtophys(&mcsp->cb_status)); - fxp_scb_cmd(sc, FXP_SCB_COMMAND_CU_START); - - ifp->if_timer = 2; - return; - } - -#endif /* defined(__i386__) */ |