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Diffstat (limited to 'sys/dev/ie/if_ie.c')
| -rw-r--r-- | sys/dev/ie/if_ie.c | 2436 |
1 files changed, 0 insertions, 2436 deletions
diff --git a/sys/dev/ie/if_ie.c b/sys/dev/ie/if_ie.c deleted file mode 100644 index 4b22ae52bc6c..000000000000 --- a/sys/dev/ie/if_ie.c +++ /dev/null @@ -1,2436 +0,0 @@ -/*- - * Copyright (c) 1992, 1993, University of Vermont and State - * Agricultural College. - * Copyright (c) 1992, 1993, Garrett A. Wollman. - * - * Portions: - * Copyright (c) 1990, 1991, William F. Jolitz - * Copyright (c) 1990, The Regents of the University of California - * - * 3Com 3C507 support: - * Copyright (c) 1993, 1994, Charles M. Hannum - * - * EtherExpress 16 support: - * Copyright (c) 1993, 1994, 1995, Rodney W. Grimes - * Copyright (c) 1997, Aaron C. Smith - * - * 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, 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * Vermont and State Agricultural College and Garrett A. Wollman, by - * William F. Jolitz, by the University of California, Berkeley, - * Lawrence Berkeley Laboratory, and their contributors, by - * Charles M. Hannum, by Rodney W. Grimes, and by Aaron C. Smith. - * 4. Neither the names of the Universities nor the names of the authors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 UNIVERSITY OR AUTHORS 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. - * - * $Id: if_ie.c,v 1.57 1998/10/22 05:58:39 bde Exp $ - */ - -/* - * Intel 82586 Ethernet chip - * Register, bit, and structure definitions. - * - * Written by GAW with reference to the Clarkson Packet Driver code for this - * chip written by Russ Nelson and others. - * - * Intel EtherExpress 16 support from if_ix.c, written by Rodney W. Grimes. - */ - -/* - * The i82586 is a very versatile chip, found in many implementations. - * Programming this chip is mostly the same, but certain details differ - * from card to card. This driver is written so that different cards - * can be automatically detected at run-time. - */ - -/* -Mode of operation: - -We run the 82586 in a standard Ethernet mode. We keep NFRAMES received -frame descriptors around for the receiver to use, and NRXBUFS associated -receive buffer descriptors, both in a circular list. Whenever a frame is -received, we rotate both lists as necessary. (The 586 treats both lists -as a simple queue.) We also keep a transmit command around so that packets -can be sent off quickly. - -We configure the adapter in AL-LOC = 1 mode, which means that the -Ethernet/802.3 MAC header is placed at the beginning of the receive buffer -rather than being split off into various fields in the RFD. This also -means that we must include this header in the transmit buffer as well. - -By convention, all transmit commands, and only transmit commands, shall -have the I (IE_CMD_INTR) bit set in the command. This way, when an -interrupt arrives at ieintr(), it is immediately possible to tell -what precisely caused it. ANY OTHER command-sending routines should -run at splimp(), and should post an acknowledgement to every interrupt -they generate. - -The 82586 has a 24-bit address space internally, and the adaptor's memory -is located at the top of this region. However, the value we are given in -configuration is normally the *bottom* of the adaptor RAM. So, we must go -through a few gyrations to come up with a kernel virtual address which -represents the actual beginning of the 586 address space. First, we -autosize the RAM by running through several possible sizes and trying to -initialize the adapter under the assumption that the selected size is -correct. Then, knowing the correct RAM size, we set up our pointers in -ie_softc[unit]. `iomem' represents the computed base of the 586 address -space. `iomembot' represents the actual configured base of adapter RAM. -Finally, `iosize' represents the calculated size of 586 RAM. Then, when -laying out commands, we use the interval [iomembot, iomembot + iosize); to -make 24-pointers, we subtract iomem, and to make 16-pointers, we subtract -iomem and and with 0xffff. - -*/ - -#include "ie.h" -#if NIE > 0 -#include "opt_inet.h" -#include "opt_ipx.h" - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/conf.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/sockio.h> -#include <sys/syslog.h> - -#include <net/if.h> -#include <net/if_types.h> -#include <net/if_dl.h> - -#include "bpfilter.h" - -#ifdef INET -#include <netinet/in.h> -#include <netinet/if_ether.h> -#endif - -#ifdef IPX -#include <netipx/ipx.h> -#include <netipx/ipx_if.h> -#endif - -#ifdef NS -#include <netns/ns.h> -#include <netns/ns_if.h> -#endif - -#include <machine/clock.h> -#include <machine/md_var.h> - -#include <i386/isa/isa_device.h> -#include <i386/isa/ic/i82586.h> -#include <i386/isa/icu.h> -#include <i386/isa/if_iereg.h> -#include <i386/isa/if_ie507.h> -#include <i386/isa/if_iee16.h> -#include <i386/isa/elink.h> - -#if NBPFILTER > 0 -#include <net/bpf.h> -#endif - -#ifdef DEBUG -#define IED_RINT 0x01 -#define IED_TINT 0x02 -#define IED_RNR 0x04 -#define IED_CNA 0x08 -#define IED_READFRAME 0x10 -static int ie_debug = IED_RNR; - -#endif - -#define IE_BUF_LEN ETHER_MAX_LEN /* length of transmit buffer */ - -/* Forward declaration */ -struct ie_softc; - -static struct mbuf *last_not_for_us; - -static int ieprobe(struct isa_device * dvp); -static int ieattach(struct isa_device * dvp); -static ointhand2_t ieintr; -static int sl_probe(struct isa_device * dvp); -static int el_probe(struct isa_device * dvp); -static int ni_probe(struct isa_device * dvp); -static int ee16_probe(struct isa_device * dvp); - -static int check_ie_present(int unit, caddr_t where, unsigned size); -static void ieinit(int unit); -static void ie_stop(int unit); -static int ieioctl(struct ifnet * ifp, u_long command, caddr_t data); -static void iestart(struct ifnet * ifp); - -static void el_reset_586(int unit); -static void el_chan_attn(int unit); - -static void sl_reset_586(int unit); -static void sl_chan_attn(int unit); - -static void ee16_reset_586(int unit); -static void ee16_chan_attn(int unit); -static __inline void ee16_interrupt_enable(struct ie_softc * ie); -static void ee16_eeprom_outbits(struct ie_softc * ie, int edata, int cnt); -static void ee16_eeprom_clock(struct ie_softc * ie, int state); -static u_short ee16_read_eeprom(struct ie_softc * ie, int location); -static int ee16_eeprom_inbits(struct ie_softc * ie); -static void ee16_shutdown(int howto, void *sc); - -static void iereset(int unit); -static void ie_readframe(int unit, struct ie_softc * ie, int bufno); -static void ie_drop_packet_buffer(int unit, struct ie_softc * ie); -static void sl_read_ether(int unit, unsigned char addr[6]); -static void find_ie_mem_size(int unit); -static void chan_attn_timeout(void *rock); -static int command_and_wait(int unit, int command, - void volatile * pcmd, int); -static void run_tdr(int unit, struct ie_tdr_cmd * cmd); -static int ierint(int unit, struct ie_softc * ie); -static int ietint(int unit, struct ie_softc * ie); -static int iernr(int unit, struct ie_softc * ie); -static void start_receiver(int unit); -static __inline int ieget(int, struct ie_softc *, struct mbuf **, - struct ether_header *, int *); -static caddr_t setup_rfa(caddr_t ptr, struct ie_softc * ie); -static int mc_setup(int, caddr_t, volatile struct ie_sys_ctl_block *); -static void ie_mc_reset(int unit); - -#ifdef DEBUG -static void print_rbd(volatile struct ie_recv_buf_desc * rbd); - -static int in_ierint = 0; -static int in_ietint = 0; - -#endif - -/* - * This tells the autoconf code how to set us up. - */ -struct isa_driver iedriver = { - ieprobe, ieattach, "ie", -}; - -enum ie_hardware { - IE_STARLAN10, - IE_EN100, - IE_SLFIBER, - IE_3C507, - IE_NI5210, - IE_EE16, - IE_UNKNOWN -}; - -static const char *ie_hardware_names[] = { - "StarLAN 10", - "EN100", - "StarLAN Fiber", - "3C507", - "NI5210", - "EtherExpress 16", - "Unknown" -}; - -/* -sizeof(iscp) == 1+1+2+4 == 8 -sizeof(scb) == 2+2+2+2+2+2+2+2 == 16 -NFRAMES * sizeof(rfd) == NFRAMES*(2+2+2+2+6+6+2+2) == NFRAMES*24 == 384 -sizeof(xmit_cmd) == 2+2+2+2+6+2 == 18 -sizeof(transmit buffer) == 1512 -sizeof(transmit buffer desc) == 8 ------ -1946 - -NRXBUFS * sizeof(rbd) == NRXBUFS*(2+2+4+2+2) == NRXBUFS*12 -NRXBUFS * IE_RBUF_SIZE == NRXBUFS*256 - -NRXBUFS should be (16384 - 1946) / (256 + 12) == 14438 / 268 == 53 - -With NRXBUFS == 48, this leaves us 1574 bytes for another command or -more buffers. Another transmit command would be 18+8+1512 == 1538 ----just barely fits! - -Obviously all these would have to be reduced for smaller memory sizes. -With a larger memory, it would be possible to roughly double the number of -both transmit and receive buffers. -*/ - -#define NFRAMES 8 /* number of receive frames */ -#define NRXBUFS 48 /* number of buffers to allocate */ -#define IE_RBUF_SIZE 256 /* size of each buffer, MUST BE POWER OF TWO */ -#define NTXBUFS 2 /* number of transmit commands */ -#define IE_TBUF_SIZE ETHER_MAX_LEN /* size of transmit buffer */ - -/* - * Ethernet status, per interface. - */ -static struct ie_softc { - struct arpcom arpcom; - void (*ie_reset_586) (int); - void (*ie_chan_attn) (int); - enum ie_hardware hard_type; - int hard_vers; - - u_short port; /* i/o base address for this interface */ - caddr_t iomem; /* memory size */ - caddr_t iomembot; /* memory base address */ - unsigned iosize; - int bus_use; /* 0 means 16bit, 1 means 8 bit adapter */ - - int want_mcsetup; - int promisc; - int nframes; - int nrxbufs; - int ntxbufs; - volatile struct ie_int_sys_conf_ptr *iscp; - volatile struct ie_sys_ctl_block *scb; - volatile struct ie_recv_frame_desc **rframes; /* nframes worth */ - volatile struct ie_recv_buf_desc **rbuffs; /* nrxbufs worth */ - volatile u_char **cbuffs; /* nrxbufs worth */ - int rfhead, rftail, rbhead, rbtail; - - volatile struct ie_xmit_cmd **xmit_cmds; /* ntxbufs worth */ - volatile struct ie_xmit_buf **xmit_buffs; /* ntxbufs worth */ - u_char **xmit_cbuffs; /* ntxbufs worth */ - int xmit_count; - - struct ie_en_addr mcast_addrs[MAXMCAST + 1]; - int mcast_count; - - u_short irq_encoded; /* encoded interrupt on IEE16 */ -} ie_softc[NIE]; - -#define MK_24(base, ptr) ((caddr_t)((uintptr_t)ptr - (uintptr_t)base)) -#define MK_16(base, ptr) ((u_short)(uintptr_t)MK_24(base, ptr)) - -#define PORT ie_softc[unit].port -#define MEM ie_softc[unit].iomem - -int -ieprobe(struct isa_device *dvp) -{ - int ret; - - ret = sl_probe(dvp); - if (!ret) - ret = el_probe(dvp); - if (!ret) - ret = ni_probe(dvp); - if (!ret) - ret = ee16_probe(dvp); - - return (ret); -} - -static int -sl_probe(struct isa_device *dvp) -{ - int unit = dvp->id_unit; - u_char c; - - ie_softc[unit].port = dvp->id_iobase; - ie_softc[unit].iomembot = dvp->id_maddr; - ie_softc[unit].iomem = 0; - ie_softc[unit].bus_use = 0; - - c = inb(PORT + IEATT_REVISION); - switch (SL_BOARD(c)) { - case SL10_BOARD: - ie_softc[unit].hard_type = IE_STARLAN10; - ie_softc[unit].ie_reset_586 = sl_reset_586; - ie_softc[unit].ie_chan_attn = sl_chan_attn; - break; - case EN100_BOARD: - ie_softc[unit].hard_type = IE_EN100; - ie_softc[unit].ie_reset_586 = sl_reset_586; - ie_softc[unit].ie_chan_attn = sl_chan_attn; - break; - case SLFIBER_BOARD: - ie_softc[unit].hard_type = IE_SLFIBER; - ie_softc[unit].ie_reset_586 = sl_reset_586; - ie_softc[unit].ie_chan_attn = sl_chan_attn; - break; - - /* - * Anything else is not recognized or cannot be used. - */ - default: - return (0); - } - - ie_softc[unit].hard_vers = SL_REV(c); - - /* - * Divine memory size on-board the card. Ususally 16k. - */ - find_ie_mem_size(unit); - - if (!ie_softc[unit].iosize) { - return (0); - } - dvp->id_msize = ie_softc[unit].iosize; - - switch (ie_softc[unit].hard_type) { - case IE_EN100: - case IE_STARLAN10: - case IE_SLFIBER: - sl_read_ether(unit, ie_softc[unit].arpcom.ac_enaddr); - break; - - default: - if (bootverbose) - printf("ie%d: unknown AT&T board type code %d\n", unit, - ie_softc[unit].hard_type); - return (0); - } - - return (1); -} - - -static int -el_probe(struct isa_device *dvp) -{ - struct ie_softc *sc = &ie_softc[dvp->id_unit]; - u_char c; - int i; - u_char signature[] = "*3COM*"; - int unit = dvp->id_unit; - - sc->port = dvp->id_iobase; - sc->iomembot = dvp->id_maddr; - sc->bus_use = 0; - - /* Need this for part of the probe. */ - sc->ie_reset_586 = el_reset_586; - sc->ie_chan_attn = el_chan_attn; - - /* Reset and put card in CONFIG state without changing address. */ - elink_reset(); - outb(ELINK_ID_PORT, 0x00); - elink_idseq(ELINK_507_POLY); - elink_idseq(ELINK_507_POLY); - outb(ELINK_ID_PORT, 0xff); - - c = inb(PORT + IE507_MADDR); - if (c & 0x20) { -#ifdef DEBUG - printf("ie%d: can't map 3C507 RAM in high memory\n", unit); -#endif - return (0); - } - /* go to RUN state */ - outb(ELINK_ID_PORT, 0x00); - elink_idseq(ELINK_507_POLY); - outb(ELINK_ID_PORT, 0x00); - - outb(PORT + IE507_CTRL, EL_CTRL_NRST); - - for (i = 0; i < 6; i++) - if (inb(PORT + i) != signature[i]) - return (0); - - c = inb(PORT + IE507_IRQ) & 0x0f; - - if (dvp->id_irq != (1 << c)) { - printf("ie%d: kernel configured irq %d " - "doesn't match board configured irq %d\n", - unit, ffs(dvp->id_irq) - 1, c); - return (0); - } - c = (inb(PORT + IE507_MADDR) & 0x1c) + 0xc0; - - if (kvtop(dvp->id_maddr) != ((int) c << 12)) { - printf("ie%d: kernel configured maddr %lx " - "doesn't match board configured maddr %x\n", - unit, kvtop(dvp->id_maddr), (int) c << 12); - return (0); - } - outb(PORT + IE507_CTRL, EL_CTRL_NORMAL); - - sc->hard_type = IE_3C507; - sc->hard_vers = 0; /* 3C507 has no version number. */ - - /* - * Divine memory size on-board the card. - */ - find_ie_mem_size(unit); - - if (!sc->iosize) { - printf("ie%d: can't find shared memory\n", unit); - outb(PORT + IE507_CTRL, EL_CTRL_NRST); - return (0); - } - if (!dvp->id_msize) - dvp->id_msize = sc->iosize; - else if (dvp->id_msize != sc->iosize) { - printf("ie%d: kernel configured msize %d " - "doesn't match board configured msize %d\n", - unit, dvp->id_msize, sc->iosize); - outb(PORT + IE507_CTRL, EL_CTRL_NRST); - return (0); - } - sl_read_ether(unit, ie_softc[unit].arpcom.ac_enaddr); - - /* Clear the interrupt latch just in case. */ - outb(PORT + IE507_ICTRL, 1); - - return (16); -} - - -static int -ni_probe(struct isa_device *dvp) -{ - int unit = dvp->id_unit; - int boardtype, c; - - ie_softc[unit].port = dvp->id_iobase; - ie_softc[unit].iomembot = dvp->id_maddr; - ie_softc[unit].iomem = 0; - ie_softc[unit].bus_use = 1; - - boardtype = inb(PORT + IEATT_REVISION); - c = inb(PORT + IEATT_REVISION + 1); - boardtype = boardtype + (c << 8); - switch (boardtype) { - case 0x5500: /* This is the magic cookie for the NI5210 */ - ie_softc[unit].hard_type = IE_NI5210; - ie_softc[unit].ie_reset_586 = sl_reset_586; - ie_softc[unit].ie_chan_attn = sl_chan_attn; - break; - - /* - * Anything else is not recognized or cannot be used. - */ - default: - return (0); - } - - ie_softc[unit].hard_vers = 0; - - /* - * Divine memory size on-board the card. Either 8 or 16k. - */ - find_ie_mem_size(unit); - - if (!ie_softc[unit].iosize) { - return (0); - } - if (!dvp->id_msize) - dvp->id_msize = ie_softc[unit].iosize; - else if (dvp->id_msize != ie_softc[unit].iosize) { - printf("ie%d: kernel configured msize %d " - "doesn't match board configured msize %d\n", - unit, dvp->id_msize, ie_softc[unit].iosize); - return (0); - } - sl_read_ether(unit, ie_softc[unit].arpcom.ac_enaddr); - - return (8); - -} - - -static void -ee16_shutdown(int howto, void *sc) -{ - struct ie_softc *ie = (struct ie_softc *)sc; - int unit = ie - &ie_softc[0]; - - ee16_reset_586(unit); - outb(PORT + IEE16_ECTRL, IEE16_RESET_ASIC); - outb(PORT + IEE16_ECTRL, 0); -} - - -/* Taken almost exactly from Rod's if_ix.c. */ - -int -ee16_probe(struct isa_device *dvp) -{ - struct ie_softc *sc = &ie_softc[dvp->id_unit]; - - int i; - int unit = dvp->id_unit; - u_short board_id, id_var1, id_var2, checksum = 0; - u_short eaddrtemp, irq; - u_short pg, adjust, decode, edecode; - u_char bart_config; - u_long bd_maddr; - - short irq_translate[] = {0, IRQ9, IRQ3, IRQ4, IRQ5, IRQ10, IRQ11, 0}; - char irq_encode[] = {0, 0, 0, 2, 3, 4, 0, 0, 0, 1, 5, 6, 0, 0, 0, 0}; - - /* Need this for part of the probe. */ - sc->ie_reset_586 = ee16_reset_586; - sc->ie_chan_attn = ee16_chan_attn; - - /* unsure if this is necessary */ - sc->bus_use = 0; - - /* reset any ee16 at the current iobase */ - outb(dvp->id_iobase + IEE16_ECTRL, IEE16_RESET_ASIC); - outb(dvp->id_iobase + IEE16_ECTRL, 0); - DELAY(240); - - /* now look for ee16. */ - board_id = id_var1 = id_var2 = 0; - for (i = 0; i < 4; i++) { - id_var1 = inb(dvp->id_iobase + IEE16_ID_PORT); - id_var2 = ((id_var1 & 0x03) << 2); - board_id |= ((id_var1 >> 4) << id_var2); - } - - if (board_id != IEE16_ID) { - printf("ie%d: unknown board_id: %x\n", unit, board_id); - return (0); - } - /* need sc->port for ee16_read_eeprom */ - sc->port = dvp->id_iobase; - sc->hard_type = IE_EE16; - - /* - * The shared RAM location on the EE16 is encoded into bits 3-7 of - * EEPROM location 6. We zero the upper byte, and shift the 5 bits - * right 3. The resulting number tells us the RAM location. - * Because the EE16 supports either 16k or 32k of shared RAM, we - * only worry about the 32k locations. - * - * NOTE: if a 64k EE16 exists, it should be added to this switch. then - * the ia->ia_msize would need to be set per case statement. - * - * value msize location ===== ===== ======== 0x03 0x8000 - * 0xCC000 0x06 0x8000 0xD0000 0x0C 0x8000 0xD4000 0x18 - * 0x8000 0xD8000 - * - */ - - bd_maddr = 0; - i = (ee16_read_eeprom(sc, 6) & 0x00ff) >> 3; - switch (i) { - case 0x03: - bd_maddr = 0xCC000; - break; - case 0x06: - bd_maddr = 0xD0000; - break; - case 0x0c: - bd_maddr = 0xD4000; - break; - case 0x18: - bd_maddr = 0xD8000; - break; - default: - bd_maddr = 0; - break; - } - dvp->id_msize = 0x8000; - if (kvtop(dvp->id_maddr) != bd_maddr) { - printf("ie%d: kernel configured maddr %lx " - "doesn't match board configured maddr %lx\n", - unit, kvtop(dvp->id_maddr), bd_maddr); - } - sc->iomembot = dvp->id_maddr; - sc->iomem = 0; /* XXX some probes set this and some don't */ - sc->iosize = dvp->id_msize; - - /* need to put the 586 in RESET while we access the eeprom. */ - outb(PORT + IEE16_ECTRL, IEE16_RESET_586); - - /* read the eeprom and checksum it, should == IEE16_ID */ - for (i = 0; i < 0x40; i++) - checksum += ee16_read_eeprom(sc, i); - - if (checksum != IEE16_ID) { - printf("ie%d: invalid eeprom checksum: %x\n", unit, checksum); - return (0); - } - /* - * Size and test the memory on the board. The size of the memory - * can be one of 16k, 32k, 48k or 64k. It can be located in the - * address range 0xC0000 to 0xEFFFF on 16k boundaries. - * - * If the size does not match the passed in memory allocation size - * issue a warning, but continue with the minimum of the two sizes. - */ - - switch (dvp->id_msize) { - case 65536: - case 32768: /* XXX Only support 32k and 64k right now */ - break; - case 16384: - case 49512: - default: - printf("ie%d: mapped memory size %d not supported\n", unit, - dvp->id_msize); - return (0); - break; /* NOTREACHED */ - } - - if ((kvtop(dvp->id_maddr) < 0xC0000) || - (kvtop(dvp->id_maddr) + sc->iosize > 0xF0000)) { - printf("ie%d: mapped memory location %p out of range\n", unit, - (void *)dvp->id_maddr); - return (0); - } - pg = (kvtop(dvp->id_maddr) & 0x3C000) >> 14; - adjust = IEE16_MCTRL_FMCS16 | (pg & 0x3) << 2; - decode = ((1 << (sc->iosize / 16384)) - 1) << pg; - edecode = ((~decode >> 4) & 0xF0) | (decode >> 8); - - /* ZZZ This should be checked against eeprom location 6, low byte */ - outb(PORT + IEE16_MEMDEC, decode & 0xFF); - /* ZZZ This should be checked against eeprom location 1, low byte */ - outb(PORT + IEE16_MCTRL, adjust); - /* ZZZ Now if I could find this one I would have it made */ - outb(PORT + IEE16_MPCTRL, (~decode & 0xFF)); - /* ZZZ I think this is location 6, high byte */ - outb(PORT + IEE16_MECTRL, edecode); /* XXX disable Exxx */ - - (void) kvtop(dvp->id_maddr); - - /* - * first prime the stupid bart DRAM controller so that it works, - * then zero out all of memory. - */ - bzero(sc->iomembot, 32); - bzero(sc->iomembot, sc->iosize); - - /* - * Get the encoded interrupt number from the EEPROM, check it - * against the passed in IRQ. Issue a warning if they do not match. - * Always use the passed in IRQ, not the one in the EEPROM. - */ - irq = ee16_read_eeprom(sc, IEE16_EEPROM_CONFIG1); - irq = (irq & IEE16_EEPROM_IRQ) >> IEE16_EEPROM_IRQ_SHIFT; - irq = irq_translate[irq]; - if (dvp->id_irq > 0) { - if (irq != dvp->id_irq) { - printf("ie%d: WARNING: board configured " - "at irq %u, using %u\n", - dvp->id_unit, dvp->id_irq, irq); - irq = dvp->id_unit; - } - } else { - dvp->id_irq = irq; - } - sc->irq_encoded = irq_encode[ffs(irq) - 1]; - - /* - * Get the hardware ethernet address from the EEPROM and save it in - * the softc for use by the 586 setup code. - */ - eaddrtemp = ee16_read_eeprom(sc, IEE16_EEPROM_ENET_HIGH); - sc->arpcom.ac_enaddr[1] = eaddrtemp & 0xFF; - sc->arpcom.ac_enaddr[0] = eaddrtemp >> 8; - eaddrtemp = ee16_read_eeprom(sc, IEE16_EEPROM_ENET_MID); - sc->arpcom.ac_enaddr[3] = eaddrtemp & 0xFF; - sc->arpcom.ac_enaddr[2] = eaddrtemp >> 8; - eaddrtemp = ee16_read_eeprom(sc, IEE16_EEPROM_ENET_LOW); - sc->arpcom.ac_enaddr[5] = eaddrtemp & 0xFF; - sc->arpcom.ac_enaddr[4] = eaddrtemp >> 8; - - /* disable the board interrupts */ - outb(PORT + IEE16_IRQ, sc->irq_encoded); - - /* enable loopback to keep bad packets off the wire */ - if (sc->hard_type == IE_EE16) { - bart_config = inb(PORT + IEE16_CONFIG); - bart_config |= IEE16_BART_LOOPBACK; - bart_config |= IEE16_BART_MCS16_TEST;/* inb doesn't get bit! */ - outb(PORT + IEE16_CONFIG, bart_config); - bart_config = inb(PORT + IEE16_CONFIG); - } - /* take the board out of reset state */ - outb(PORT + IEE16_ECTRL, 0); - DELAY(100); - - if (!check_ie_present(unit, dvp->id_maddr, sc->iosize)) - return (0); - - return (16); /* return the number of I/O ports */ -} - -/* - * Taken almost exactly from Bill's if_is.c, then modified beyond recognition. - */ -int -ieattach(struct isa_device *dvp) -{ - int factor; - int unit = dvp->id_unit; - struct ie_softc *ie = &ie_softc[unit]; - struct ifnet *ifp = &ie->arpcom.ac_if; - size_t allocsize; - - dvp->id_ointr = ieintr; - - /* - * based on the amount of memory we have, allocate our tx and rx - * resources. - */ - factor = dvp->id_msize / 16384; - ie->nframes = factor * NFRAMES; - ie->nrxbufs = factor * NRXBUFS; - ie->ntxbufs = factor * NTXBUFS; - - /* - * Since all of these guys are arrays of pointers, allocate as one - * big chunk and dole out accordingly. - */ - allocsize = sizeof(void *) * (ie->nframes - + (ie->nrxbufs * 2) - + (ie->ntxbufs * 3)); - ie->rframes = (volatile struct ie_recv_frame_desc **) malloc(allocsize, - M_DEVBUF, - M_NOWAIT); - if (ie->rframes == NULL) - return (0); - ie->rbuffs = - (volatile struct ie_recv_buf_desc **)&ie->rframes[ie->nframes]; - ie->cbuffs = (volatile u_char **)&ie->rbuffs[ie->nrxbufs]; - ie->xmit_cmds = - (volatile struct ie_xmit_cmd **)&ie->cbuffs[ie->nrxbufs]; - ie->xmit_buffs = - (volatile struct ie_xmit_buf **)&ie->xmit_cmds[ie->ntxbufs]; - ie->xmit_cbuffs = (u_char **)&ie->xmit_buffs[ie->ntxbufs]; - - ifp->if_softc = ie; - ifp->if_unit = unit; - ifp->if_name = iedriver.name; - ifp->if_mtu = ETHERMTU; - printf("ie%d: <%s R%d> address %6D\n", unit, - ie_hardware_names[ie->hard_type], - ie->hard_vers + 1, - ie->arpcom.ac_enaddr, ":"); - - ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; - ifp->if_output = ether_output; - ifp->if_start = iestart; - ifp->if_ioctl = ieioctl; - ifp->if_type = IFT_ETHER; - ifp->if_addrlen = 6; - ifp->if_hdrlen = 14; - - if (ie->hard_type == IE_EE16) - at_shutdown(ee16_shutdown, ie, SHUTDOWN_POST_SYNC); - -#if NBPFILTER > 0 - bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header)); -#endif - - if_attach(ifp); - ether_ifattach(ifp); - return (1); -} - -/* - * What to do upon receipt of an interrupt. - */ -static void -ieintr(int unit) -{ - register struct ie_softc *ie = &ie_softc[unit]; - register u_short status; - - /* Clear the interrupt latch on the 3C507. */ - if (ie->hard_type == IE_3C507 - && (inb(PORT + IE507_CTRL) & EL_CTRL_INTL)) - outb(PORT + IE507_ICTRL, 1); - - /* disable interrupts on the EE16. */ - if (ie->hard_type == IE_EE16) - outb(PORT + IEE16_IRQ, ie->irq_encoded); - - status = ie->scb->ie_status; - -loop: - - /* Don't ack interrupts which we didn't receive */ - ie_ack(ie->scb, IE_ST_WHENCE & status, unit, ie->ie_chan_attn); - - if (status & (IE_ST_RECV | IE_ST_RNR)) { -#ifdef DEBUG - in_ierint++; - if (ie_debug & IED_RINT) - printf("ie%d: rint\n", unit); -#endif - ierint(unit, ie); -#ifdef DEBUG - in_ierint--; -#endif - } - if (status & IE_ST_DONE) { -#ifdef DEBUG - in_ietint++; - if (ie_debug & IED_TINT) - printf("ie%d: tint\n", unit); -#endif - ietint(unit, ie); -#ifdef DEBUG - in_ietint--; -#endif - } - if (status & IE_ST_RNR) { -#ifdef DEBUG - if (ie_debug & IED_RNR) - printf("ie%d: rnr\n", unit); -#endif - iernr(unit, ie); - } -#ifdef DEBUG - if ((status & IE_ST_ALLDONE) - && (ie_debug & IED_CNA)) - printf("ie%d: cna\n", unit); -#endif - - if ((status = ie->scb->ie_status) & IE_ST_WHENCE) - goto loop; - - /* Clear the interrupt latch on the 3C507. */ - if (ie->hard_type == IE_3C507) - outb(PORT + IE507_ICTRL, 1); - - /* enable interrupts on the EE16. */ - if (ie->hard_type == IE_EE16) - outb(PORT + IEE16_IRQ, ie->irq_encoded | IEE16_IRQ_ENABLE); - -} - -/* - * Process a received-frame interrupt. - */ -static int -ierint(int unit, struct ie_softc *ie) -{ - int i, status; - static int timesthru = 1024; - - i = ie->rfhead; - while (1) { - status = ie->rframes[i]->ie_fd_status; - - if ((status & IE_FD_COMPLETE) && (status & IE_FD_OK)) { - ie->arpcom.ac_if.if_ipackets++; - if (!--timesthru) { - ie->arpcom.ac_if.if_ierrors += - ie->scb->ie_err_crc + - ie->scb->ie_err_align + - ie->scb->ie_err_resource + - ie->scb->ie_err_overrun; - ie->scb->ie_err_crc = 0; - ie->scb->ie_err_align = 0; - ie->scb->ie_err_resource = 0; - ie->scb->ie_err_overrun = 0; - timesthru = 1024; - } - ie_readframe(unit, ie, i); - } else { - if (status & IE_FD_RNR) { - if (!(ie->scb->ie_status & IE_RU_READY)) { - ie->rframes[0]->ie_fd_next = - MK_16(MEM, ie->rbuffs[0]); - ie->scb->ie_recv_list = - MK_16(MEM, ie->rframes[0]); - command_and_wait(unit, IE_RU_START, - 0, 0); - } - } - break; - } - i = (i + 1) % ie->nframes; - } - return (0); -} - -/* - * Process a command-complete interrupt. These are only generated by - * the transmission of frames. This routine is deceptively simple, since - * most of the real work is done by iestart(). - */ -static int -ietint(int unit, struct ie_softc *ie) -{ - int status; - int i; - - ie->arpcom.ac_if.if_timer = 0; - ie->arpcom.ac_if.if_flags &= ~IFF_OACTIVE; - - for (i = 0; i < ie->xmit_count; i++) { - status = ie->xmit_cmds[i]->ie_xmit_status; - - if (status & IE_XS_LATECOLL) { - printf("ie%d: late collision\n", unit); - ie->arpcom.ac_if.if_collisions++; - ie->arpcom.ac_if.if_oerrors++; - } else if (status & IE_XS_NOCARRIER) { - printf("ie%d: no carrier\n", unit); - ie->arpcom.ac_if.if_oerrors++; - } else if (status & IE_XS_LOSTCTS) { - printf("ie%d: lost CTS\n", unit); - ie->arpcom.ac_if.if_oerrors++; - } else if (status & IE_XS_UNDERRUN) { - printf("ie%d: DMA underrun\n", unit); - ie->arpcom.ac_if.if_oerrors++; - } else if (status & IE_XS_EXCMAX) { - printf("ie%d: too many collisions\n", unit); - ie->arpcom.ac_if.if_collisions += 16; - ie->arpcom.ac_if.if_oerrors++; - } else { - ie->arpcom.ac_if.if_opackets++; - ie->arpcom.ac_if.if_collisions += status & IE_XS_MAXCOLL; - } - } - ie->xmit_count = 0; - - /* - * If multicast addresses were added or deleted while we were - * transmitting, ie_mc_reset() set the want_mcsetup flag indicating - * that we should do it. - */ - if (ie->want_mcsetup) { - mc_setup(unit, (caddr_t) ie->xmit_cbuffs[0], ie->scb); - ie->want_mcsetup = 0; - } - /* Wish I knew why this seems to be necessary... */ - ie->xmit_cmds[0]->ie_xmit_status |= IE_STAT_COMPL; - - iestart(&ie->arpcom.ac_if); - return (0); /* shouldn't be necessary */ -} - -/* - * Process a receiver-not-ready interrupt. I believe that we get these - * when there aren't enough buffers to go around. For now (FIXME), we - * just restart the receiver, and hope everything's ok. - */ -static int -iernr(int unit, struct ie_softc *ie) -{ -#ifdef doesnt_work - setup_rfa((caddr_t) ie->rframes[0], ie); - - ie->scb->ie_recv_list = MK_16(MEM, ie_softc[unit].rframes[0]); - command_and_wait(unit, IE_RU_START, 0, 0); -#else - /* This doesn't work either, but it doesn't hang either. */ - command_and_wait(unit, IE_RU_DISABLE, 0, 0); /* just in case */ - setup_rfa((caddr_t) ie->rframes[0], ie); /* ignore cast-qual */ - - ie->scb->ie_recv_list = MK_16(MEM, ie_softc[unit].rframes[0]); - command_and_wait(unit, IE_RU_START, 0, 0); /* was ENABLE */ - -#endif - ie_ack(ie->scb, IE_ST_WHENCE, unit, ie->ie_chan_attn); - - ie->arpcom.ac_if.if_ierrors++; - return (0); -} - -/* - * Compare two Ether/802 addresses for equality, inlined and - * unrolled for speed. I'd love to have an inline assembler - * version of this... - */ -static __inline int -ether_equal(u_char * one, u_char * two) -{ - if (one[0] != two[0]) - return (0); - if (one[1] != two[1]) - return (0); - if (one[2] != two[2]) - return (0); - if (one[3] != two[3]) - return (0); - if (one[4] != two[4]) - return (0); - if (one[5] != two[5]) - return (0); - return 1; -} - -/* - * Check for a valid address. to_bpf is filled in with one of the following: - * 0 -> BPF doesn't get this packet - * 1 -> BPF does get this packet - * 2 -> BPF does get this packet, but we don't - * Return value is true if the packet is for us, and false otherwise. - * - * This routine is a mess, but it's also critical that it be as fast - * as possible. It could be made cleaner if we can assume that the - * only client which will fiddle with IFF_PROMISC is BPF. This is - * probably a good assumption, but we do not make it here. (Yet.) - */ -static __inline int -check_eh(struct ie_softc * ie, struct ether_header * eh, int *to_bpf) -{ - int i; - - switch (ie->promisc) { - case IFF_ALLMULTI: - /* - * Receiving all multicasts, but no unicasts except those - * destined for us. - */ -#if NBPFILTER > 0 - /* BPF gets this packet if anybody cares */ - *to_bpf = (ie->arpcom.ac_if.if_bpf != 0); -#endif - if (eh->ether_dhost[0] & 1) { - return (1); - } - if (ether_equal(eh->ether_dhost, ie->arpcom.ac_enaddr)) - return (1); - return (0); - - case IFF_PROMISC: - /* - * Receiving all packets. These need to be passed on to - * BPF. - */ -#if NBPFILTER > 0 - *to_bpf = (ie->arpcom.ac_if.if_bpf != 0); -#endif - /* If for us, accept and hand up to BPF */ - if (ether_equal(eh->ether_dhost, ie->arpcom.ac_enaddr)) - return (1); - -#if NBPFILTER > 0 - if (*to_bpf) - *to_bpf = 2; /* we don't need to see it */ -#endif - - /* - * Not a multicast, so BPF wants to see it but we don't. - */ - if (!(eh->ether_dhost[0] & 1)) - return (1); - - /* - * If it's one of our multicast groups, accept it and pass - * it up. - */ - for (i = 0; i < ie->mcast_count; i++) { - if (ether_equal(eh->ether_dhost, - (u_char *)&ie->mcast_addrs[i])) { -#if NBPFILTER > 0 - if (*to_bpf) - *to_bpf = 1; -#endif - return (1); - } - } - return (1); - - case IFF_ALLMULTI | IFF_PROMISC: - /* - * Acting as a multicast router, and BPF running at the same - * time. Whew! (Hope this is a fast machine...) - */ -#if NBPFILTER > 0 - *to_bpf = (ie->arpcom.ac_if.if_bpf != 0); -#endif - /* We want to see multicasts. */ - if (eh->ether_dhost[0] & 1) - return (1); - - /* We want to see our own packets */ - if (ether_equal(eh->ether_dhost, ie->arpcom.ac_enaddr)) - return (1); - - /* Anything else goes to BPF but nothing else. */ -#if NBPFILTER > 0 - if (*to_bpf) - *to_bpf = 2; -#endif - return (1); - - default: - /* - * Only accept unicast packets destined for us, or - * multicasts for groups that we belong to. For now, we - * assume that the '586 will only return packets that we - * asked it for. This isn't strictly true (it uses hashing - * for the multicast filter), but it will do in this case, - * and we want to get out of here as quickly as possible. - */ -#if NBPFILTER > 0 - *to_bpf = (ie->arpcom.ac_if.if_bpf != 0); -#endif - return (1); - } - return (0); -} - -/* - * We want to isolate the bits that have meaning... This assumes that - * IE_RBUF_SIZE is an even power of two. If somehow the act_len exceeds - * the size of the buffer, then we are screwed anyway. - */ -static __inline int -ie_buflen(struct ie_softc * ie, int head) -{ - return (ie->rbuffs[head]->ie_rbd_actual - & (IE_RBUF_SIZE | (IE_RBUF_SIZE - 1))); -} - -static __inline int -ie_packet_len(int unit, struct ie_softc * ie) -{ - int i; - int head = ie->rbhead; - int acc = 0; - - do { - if (!(ie->rbuffs[ie->rbhead]->ie_rbd_actual & IE_RBD_USED)) { -#ifdef DEBUG - print_rbd(ie->rbuffs[ie->rbhead]); -#endif - log(LOG_ERR, - "ie%d: receive descriptors out of sync at %d\n", - unit, ie->rbhead); - iereset(unit); - return (-1); - } - i = ie->rbuffs[head]->ie_rbd_actual & IE_RBD_LAST; - - acc += ie_buflen(ie, head); - head = (head + 1) % ie->nrxbufs; - } while (!i); - - return (acc); -} - -/* - * Read data off the interface, and turn it into an mbuf chain. - * - * This code is DRAMATICALLY different from the previous version; this - * version tries to allocate the entire mbuf chain up front, given the - * length of the data available. This enables us to allocate mbuf - * clusters in many situations where before we would have had a long - * chain of partially-full mbufs. This should help to speed up the - * operation considerably. (Provided that it works, of course.) - */ -static __inline int -ieget(int unit, struct ie_softc *ie, struct mbuf **mp, - struct ether_header *ehp, int *to_bpf) -{ - struct mbuf *m, *top, **mymp; - int i; - int offset; - int totlen, resid; - int thismboff; - int head; - - totlen = ie_packet_len(unit, ie); - if (totlen <= 0) - return (-1); - - i = ie->rbhead; - - /* - * Snarf the Ethernet header. - */ - bcopy((caddr_t) ie->cbuffs[i], (caddr_t) ehp, sizeof *ehp); - /* ignore cast-qual warning here */ - - /* - * As quickly as possible, check if this packet is for us. If not, - * don't waste a single cycle copying the rest of the packet in. - * This is only a consideration when FILTER is defined; i.e., when - * we are either running BPF or doing multicasting. - */ - if (!check_eh(ie, ehp, to_bpf)) { - ie_drop_packet_buffer(unit, ie); - ie->arpcom.ac_if.if_ierrors--; /* just this case, it's not an - * error - */ - return (-1); - } - totlen -= (offset = sizeof *ehp); - - MGETHDR(*mp, M_DONTWAIT, MT_DATA); - if (!*mp) { - ie_drop_packet_buffer(unit, ie); - return (-1); - } - m = *mp; - m->m_pkthdr.rcvif = &ie->arpcom.ac_if; - m->m_len = MHLEN; - resid = m->m_pkthdr.len = totlen; - top = 0; - mymp = ⊤ - - /* - * This loop goes through and allocates mbufs for all the data we - * will be copying in. It does not actually do the copying yet. - */ - do { /* while(resid > 0) */ - /* - * Try to allocate an mbuf to hold the data that we have. - * If we already allocated one, just get another one and - * stick it on the end (eventually). If we don't already - * have one, try to allocate an mbuf cluster big enough to - * hold the whole packet, if we think it's reasonable, or a - * single mbuf which may or may not be big enough. Got that? - */ - if (top) { - MGET(m, M_DONTWAIT, MT_DATA); - if (!m) { - m_freem(top); - ie_drop_packet_buffer(unit, ie); - return (-1); - } - m->m_len = MLEN; - } - if (resid >= MINCLSIZE) { - MCLGET(m, M_DONTWAIT); - if (m->m_flags & M_EXT) - m->m_len = min(resid, MCLBYTES); - } else { - if (resid < m->m_len) { - if (!top && resid + max_linkhdr <= m->m_len) - m->m_data += max_linkhdr; - m->m_len = resid; - } - } - resid -= m->m_len; - *mymp = m; - mymp = &m->m_next; - } while (resid > 0); - - resid = totlen; - m = top; - thismboff = 0; - head = ie->rbhead; - - /* - * Now we take the mbuf chain (hopefully only one mbuf most of the - * time) and stuff the data into it. There are no possible failures - * at or after this point. - */ - while (resid > 0) { /* while there's stuff left */ - int thislen = ie_buflen(ie, head) - offset; - - /* - * If too much data for the current mbuf, then fill the - * current one up, go to the next one, and try again. - */ - if (thislen > m->m_len - thismboff) { - int newlen = m->m_len - thismboff; - - bcopy((caddr_t) (ie->cbuffs[head] + offset), - mtod(m, caddr_t) +thismboff, (unsigned) newlen); - /* ignore cast-qual warning */ - m = m->m_next; - thismboff = 0; /* new mbuf, so no offset */ - offset += newlen; /* we are now this far into - * the packet */ - resid -= newlen; /* so there is this much left - * to get */ - continue; - } - /* - * If there is more than enough space in the mbuf to hold - * the contents of this buffer, copy everything in, advance - * pointers, and so on. - */ - if (thislen < m->m_len - thismboff) { - bcopy((caddr_t) (ie->cbuffs[head] + offset), - mtod(m, caddr_t) +thismboff, (unsigned) thislen); - thismboff += thislen; /* we are this far into the - * mbuf */ - resid -= thislen; /* and this much is left */ - goto nextbuf; - } - /* - * Otherwise, there is exactly enough space to put this - * buffer's contents into the current mbuf. Do the - * combination of the above actions. - */ - bcopy((caddr_t) (ie->cbuffs[head] + offset), - mtod(m, caddr_t) + thismboff, (unsigned) thislen); - m = m->m_next; - thismboff = 0; /* new mbuf, start at the beginning */ - resid -= thislen; /* and we are this far through */ - - /* - * Advance all the pointers. We can get here from either of - * the last two cases, but never the first. - */ -nextbuf: - offset = 0; - ie->rbuffs[head]->ie_rbd_actual = 0; - ie->rbuffs[head]->ie_rbd_length |= IE_RBD_LAST; - ie->rbhead = head = (head + 1) % ie->nrxbufs; - ie->rbuffs[ie->rbtail]->ie_rbd_length &= ~IE_RBD_LAST; - ie->rbtail = (ie->rbtail + 1) % ie->nrxbufs; - } - - /* - * Unless something changed strangely while we were doing the copy, - * we have now copied everything in from the shared memory. This - * means that we are done. - */ - return (0); -} - -/* - * Read frame NUM from unit UNIT (pre-cached as IE). - * - * This routine reads the RFD at NUM, and copies in the buffers from - * the list of RBD, then rotates the RBD and RFD lists so that the receiver - * doesn't start complaining. Trailers are DROPPED---there's no point - * in wasting time on confusing code to deal with them. Hopefully, - * this machine will never ARP for trailers anyway. - */ -static void -ie_readframe(int unit, struct ie_softc *ie, int num/* frame number to read */) -{ - struct ie_recv_frame_desc rfd; - struct mbuf *m = 0; - struct ether_header eh; - -#if NBPFILTER > 0 - int bpf_gets_it = 0; - -#endif - - bcopy((caddr_t) (ie->rframes[num]), &rfd, - sizeof(struct ie_recv_frame_desc)); - - /* - * Immediately advance the RFD list, since we we have copied ours - * now. - */ - ie->rframes[num]->ie_fd_status = 0; - ie->rframes[num]->ie_fd_last |= IE_FD_LAST; - ie->rframes[ie->rftail]->ie_fd_last &= ~IE_FD_LAST; - ie->rftail = (ie->rftail + 1) % ie->nframes; - ie->rfhead = (ie->rfhead + 1) % ie->nframes; - - if (rfd.ie_fd_status & IE_FD_OK) { -#if NBPFILTER > 0 - if (ieget(unit, ie, &m, &eh, &bpf_gets_it)) { -#else - if (ieget(unit, ie, &m, &eh, (int *)0)) { -#endif - ie->arpcom.ac_if.if_ierrors++; /* this counts as an - * error */ - return; - } - } -#ifdef DEBUG - if (ie_debug & IED_READFRAME) { - printf("ie%d: frame from ether %6D type %x\n", unit, - eh.ether_shost, ":", (unsigned) eh.ether_type); - } - if (ntohs(eh.ether_type) > ETHERTYPE_TRAIL - && ntohs(eh.ether_type) < (ETHERTYPE_TRAIL + ETHERTYPE_NTRAILER)) - printf("received trailer!\n"); -#endif - - if (!m) - return; - - if (last_not_for_us) { - m_freem(last_not_for_us); - last_not_for_us = 0; - } -#if NBPFILTER > 0 - /* - * Check for a BPF filter; if so, hand it up. Note that we have to - * stick an extra mbuf up front, because bpf_mtap expects to have - * the ether header at the front. It doesn't matter that this - * results in an ill-formatted mbuf chain, since BPF just looks at - * the data. (It doesn't try to free the mbuf, tho' it will make a - * copy for tcpdump.) - */ - if (bpf_gets_it) { - struct mbuf m0; - - m0.m_len = sizeof eh; - m0.m_data = (caddr_t)&eh; - m0.m_next = m; - - /* Pass it up */ - bpf_mtap(&ie->arpcom.ac_if, &m0); - } - /* - * A signal passed up from the filtering code indicating that the - * packet is intended for BPF but not for the protocol machinery. We - * can save a few cycles by not handing it off to them. - */ - if (bpf_gets_it == 2) { - last_not_for_us = m; - return; - } -#endif /* NBPFILTER > 0 */ - /* - * In here there used to be code to check destination addresses upon - * receipt of a packet. We have deleted that code, and replaced it - * with code to check the address much earlier in the cycle, before - * copying the data in; this saves us valuable cycles when operating - * as a multicast router or when using BPF. - */ - - /* - * Finally pass this packet up to higher layers. - */ - ether_input(&ie->arpcom.ac_if, &eh, m); -} - -static void -ie_drop_packet_buffer(int unit, struct ie_softc * ie) -{ - int i; - - do { - /* - * This means we are somehow out of sync. So, we reset the - * adapter. - */ - if (!(ie->rbuffs[ie->rbhead]->ie_rbd_actual & IE_RBD_USED)) { -#ifdef DEBUG - print_rbd(ie->rbuffs[ie->rbhead]); -#endif - log(LOG_ERR, "ie%d: receive descriptors out of sync at %d\n", - unit, ie->rbhead); - iereset(unit); - return; - } - i = ie->rbuffs[ie->rbhead]->ie_rbd_actual & IE_RBD_LAST; - - ie->rbuffs[ie->rbhead]->ie_rbd_length |= IE_RBD_LAST; - ie->rbuffs[ie->rbhead]->ie_rbd_actual = 0; - ie->rbhead = (ie->rbhead + 1) % ie->nrxbufs; - ie->rbuffs[ie->rbtail]->ie_rbd_length &= ~IE_RBD_LAST; - ie->rbtail = (ie->rbtail + 1) % ie->nrxbufs; - } while (!i); -} - - -/* - * Start transmission on an interface. - */ -static void -iestart(struct ifnet *ifp) -{ - struct ie_softc *ie = ifp->if_softc; - struct mbuf *m0, *m; - unsigned char *buffer; - u_short len; - - /* - * This is not really volatile, in this routine, but it makes gcc - * happy. - */ - volatile u_short *bptr = &ie->scb->ie_command_list; - - if (!(ifp->if_flags & IFF_RUNNING)) - return; - if (ifp->if_flags & IFF_OACTIVE) - return; - - do { - IF_DEQUEUE(&ie->arpcom.ac_if.if_snd, m); - if (!m) - break; - - buffer = ie->xmit_cbuffs[ie->xmit_count]; - len = 0; - - for (m0 = m; m && len < IE_BUF_LEN; m = m->m_next) { - bcopy(mtod(m, caddr_t), buffer, m->m_len); - buffer += m->m_len; - len += m->m_len; - } - - m_freem(m0); - len = max(len, ETHER_MIN_LEN); - -#if NBPFILTER > 0 - /* - * See if bpf is listening on this interface, let it see the - * packet before we commit it to the wire. - */ - if (ie->arpcom.ac_if.if_bpf) - bpf_tap(&ie->arpcom.ac_if, - ie->xmit_cbuffs[ie->xmit_count], len); -#endif - - ie->xmit_buffs[ie->xmit_count]->ie_xmit_flags = - IE_XMIT_LAST|len; - ie->xmit_buffs[ie->xmit_count]->ie_xmit_next = 0xffff; - ie->xmit_buffs[ie->xmit_count]->ie_xmit_buf = - MK_24(ie->iomem, ie->xmit_cbuffs[ie->xmit_count]); - - ie->xmit_cmds[ie->xmit_count]->com.ie_cmd_cmd = IE_CMD_XMIT; - ie->xmit_cmds[ie->xmit_count]->ie_xmit_status = 0; - ie->xmit_cmds[ie->xmit_count]->ie_xmit_desc = - MK_16(ie->iomem, ie->xmit_buffs[ie->xmit_count]); - - *bptr = MK_16(ie->iomem, ie->xmit_cmds[ie->xmit_count]); - bptr = &ie->xmit_cmds[ie->xmit_count]->com.ie_cmd_link; - ie->xmit_count++; - } while (ie->xmit_count < ie->ntxbufs); - - /* - * If we queued up anything for transmission, send it. - */ - if (ie->xmit_count) { - ie->xmit_cmds[ie->xmit_count - 1]->com.ie_cmd_cmd |= - IE_CMD_LAST | IE_CMD_INTR; - - /* - * By passing the command pointer as a null, we tell - * command_and_wait() to pretend that this isn't an action - * command. I wish I understood what was happening here. - */ - command_and_wait(ifp->if_unit, IE_CU_START, 0, 0); - ifp->if_flags |= IFF_OACTIVE; - } - return; -} - -/* - * Check to see if there's an 82586 out there. - */ -static int -check_ie_present(int unit, caddr_t where, unsigned size) -{ - volatile struct ie_sys_conf_ptr *scp; - volatile struct ie_int_sys_conf_ptr *iscp; - volatile struct ie_sys_ctl_block *scb; - u_long realbase; - int s; - - s = splimp(); - - realbase = (uintptr_t) where + size - (1 << 24); - - scp = (volatile struct ie_sys_conf_ptr *) (uintptr_t) - (realbase + IE_SCP_ADDR); - bzero((char *) scp, sizeof *scp); - - /* - * First we put the ISCP at the bottom of memory; this tests to make - * sure that our idea of the size of memory is the same as the - * controller's. This is NOT where the ISCP will be in normal - * operation. - */ - iscp = (volatile struct ie_int_sys_conf_ptr *) where; - bzero((char *)iscp, sizeof *iscp); - - scb = (volatile struct ie_sys_ctl_block *) where; - bzero((char *)scb, sizeof *scb); - - scp->ie_bus_use = ie_softc[unit].bus_use; /* 8-bit or 16-bit */ - scp->ie_iscp_ptr = (caddr_t) ((volatile caddr_t) iscp - - (volatile caddr_t) (volatile uintptr_t) - realbase); - - iscp->ie_busy = 1; - iscp->ie_scb_offset = MK_16(realbase, scb) + 256; - - (*ie_softc[unit].ie_reset_586) (unit); - (*ie_softc[unit].ie_chan_attn) (unit); - - DELAY(100); /* wait a while... */ - - if (iscp->ie_busy) { - splx(s); - return (0); - } - /* - * Now relocate the ISCP to its real home, and reset the controller - * again. - */ - iscp = (void *) Align((caddr_t) (uintptr_t) - (realbase + IE_SCP_ADDR - - sizeof(struct ie_int_sys_conf_ptr))); - bzero((char *) iscp, sizeof *iscp); /* ignore cast-qual */ - - scp->ie_iscp_ptr = (caddr_t) ((caddr_t) iscp - - (caddr_t) (uintptr_t) realbase); - /* ignore cast-qual */ - - iscp->ie_busy = 1; - iscp->ie_scb_offset = MK_16(realbase, scb); - - (*ie_softc[unit].ie_reset_586) (unit); - (*ie_softc[unit].ie_chan_attn) (unit); - - DELAY(100); - - if (iscp->ie_busy) { - splx(s); - return (0); - } - ie_softc[unit].iosize = size; - ie_softc[unit].iomem = (caddr_t) (uintptr_t) realbase; - - ie_softc[unit].iscp = iscp; - ie_softc[unit].scb = scb; - - /* - * Acknowledge any interrupts we may have caused... - */ - ie_ack(scb, IE_ST_WHENCE, unit, ie_softc[unit].ie_chan_attn); - splx(s); - - return (1); -} - -/* - * Divine the memory size of ie board UNIT. - * Better hope there's nothing important hiding just below the ie card... - */ -static void -find_ie_mem_size(int unit) -{ - unsigned size; - - ie_softc[unit].iosize = 0; - - for (size = 65536; size >= 8192; size -= 8192) { - if (check_ie_present(unit, ie_softc[unit].iomembot, size)) { - return; - } - } - - return; -} - -void -el_reset_586(int unit) -{ - outb(PORT + IE507_CTRL, EL_CTRL_RESET); - DELAY(100); - outb(PORT + IE507_CTRL, EL_CTRL_NORMAL); - DELAY(100); -} - -void -sl_reset_586(int unit) -{ - outb(PORT + IEATT_RESET, 0); -} - -void -ee16_reset_586(int unit) -{ - outb(PORT + IEE16_ECTRL, IEE16_RESET_586); - DELAY(100); - outb(PORT + IEE16_ECTRL, 0); - DELAY(100); -} - -void -el_chan_attn(int unit) -{ - outb(PORT + IE507_ATTN, 1); -} - -void -sl_chan_attn(int unit) -{ - outb(PORT + IEATT_ATTN, 0); -} - -void -ee16_chan_attn(int unit) -{ - outb(PORT + IEE16_ATTN, 0); -} - -u_short -ee16_read_eeprom(struct ie_softc *sc, int location) -{ - int ectrl, edata; - - ectrl = inb(sc->port + IEE16_ECTRL); - ectrl &= IEE16_ECTRL_MASK; - ectrl |= IEE16_ECTRL_EECS; - outb(sc->port + IEE16_ECTRL, ectrl); - - ee16_eeprom_outbits(sc, IEE16_EEPROM_READ, IEE16_EEPROM_OPSIZE1); - ee16_eeprom_outbits(sc, location, IEE16_EEPROM_ADDR_SIZE); - edata = ee16_eeprom_inbits(sc); - ectrl = inb(sc->port + IEE16_ECTRL); - ectrl &= ~(IEE16_RESET_ASIC | IEE16_ECTRL_EEDI | IEE16_ECTRL_EECS); - outb(sc->port + IEE16_ECTRL, ectrl); - ee16_eeprom_clock(sc, 1); - ee16_eeprom_clock(sc, 0); - return edata; -} - -void -ee16_eeprom_outbits(struct ie_softc *sc, int edata, int count) -{ - int ectrl, i; - - ectrl = inb(sc->port + IEE16_ECTRL); - ectrl &= ~IEE16_RESET_ASIC; - for (i = count - 1; i >= 0; i--) { - ectrl &= ~IEE16_ECTRL_EEDI; - if (edata & (1 << i)) { - ectrl |= IEE16_ECTRL_EEDI; - } - outb(sc->port + IEE16_ECTRL, ectrl); - DELAY(1); /* eeprom data must be setup for 0.4 uSec */ - ee16_eeprom_clock(sc, 1); - ee16_eeprom_clock(sc, 0); - } - ectrl &= ~IEE16_ECTRL_EEDI; - outb(sc->port + IEE16_ECTRL, ectrl); - DELAY(1); /* eeprom data must be held for 0.4 uSec */ -} - -int -ee16_eeprom_inbits(struct ie_softc *sc) -{ - int ectrl, edata, i; - - ectrl = inb(sc->port + IEE16_ECTRL); - ectrl &= ~IEE16_RESET_ASIC; - for (edata = 0, i = 0; i < 16; i++) { - edata = edata << 1; - ee16_eeprom_clock(sc, 1); - ectrl = inb(sc->port + IEE16_ECTRL); - if (ectrl & IEE16_ECTRL_EEDO) { - edata |= 1; - } - ee16_eeprom_clock(sc, 0); - } - return (edata); -} - -void -ee16_eeprom_clock(struct ie_softc *sc, int state) -{ - int ectrl; - - ectrl = inb(sc->port + IEE16_ECTRL); - ectrl &= ~(IEE16_RESET_ASIC | IEE16_ECTRL_EESK); - if (state) { - ectrl |= IEE16_ECTRL_EESK; - } - outb(sc->port + IEE16_ECTRL, ectrl); - DELAY(9); /* EESK must be stable for 8.38 uSec */ -} - -static __inline void -ee16_interrupt_enable(struct ie_softc *sc) -{ - DELAY(100); - outb(sc->port + IEE16_IRQ, sc->irq_encoded | IEE16_IRQ_ENABLE); - DELAY(100); -} - -void -sl_read_ether(int unit, unsigned char addr[6]) -{ - int i; - - for (i = 0; i < 6; i++) - addr[i] = inb(PORT + i); -} - - -static void -iereset(int unit) -{ - int s = splimp(); - - if (unit >= NIE) { - splx(s); - return; - } - printf("ie%d: reset\n", unit); - ie_softc[unit].arpcom.ac_if.if_flags &= ~IFF_UP; - ieioctl(&ie_softc[unit].arpcom.ac_if, SIOCSIFFLAGS, 0); - - /* - * Stop i82586 dead in its tracks. - */ - if (command_and_wait(unit, IE_RU_ABORT | IE_CU_ABORT, 0, 0)) - printf("ie%d: abort commands timed out\n", unit); - - if (command_and_wait(unit, IE_RU_DISABLE | IE_CU_STOP, 0, 0)) - printf("ie%d: disable commands timed out\n", unit); - -#ifdef notdef - if (!check_ie_present(unit, ie_softc[unit].iomembot, - e_softc[unit].iosize)) - panic("ie disappeared!"); -#endif - - ie_softc[unit].arpcom.ac_if.if_flags |= IFF_UP; - ieioctl(&ie_softc[unit].arpcom.ac_if, SIOCSIFFLAGS, 0); - - splx(s); - return; -} - -/* - * This is called if we time out. - */ -static void -chan_attn_timeout(void *rock) -{ - *(int *) rock = 1; -} - -/* - * Send a command to the controller and wait for it to either - * complete or be accepted, depending on the command. If the - * command pointer is null, then pretend that the command is - * not an action command. If the command pointer is not null, - * and the command is an action command, wait for - * ((volatile struct ie_cmd_common *)pcmd)->ie_cmd_status & MASK - * to become true. - */ -static int -command_and_wait(int unit, int cmd, volatile void *pcmd, int mask) -{ - volatile struct ie_cmd_common *cc = pcmd; - volatile int timedout = 0; - struct callout_handle ch; - - ie_softc[unit].scb->ie_command = (u_short) cmd; - - if (IE_ACTION_COMMAND(cmd) && pcmd) { - (*ie_softc[unit].ie_chan_attn) (unit); - - /* - * According to the packet driver, the minimum timeout - * should be .369 seconds, which we round up to .37. - */ - ch = timeout(chan_attn_timeout, (caddr_t)&timedout, - 37 * hz / 100); - /* ignore cast-qual */ - - /* - * Now spin-lock waiting for status. This is not a very - * nice thing to do, but I haven't figured out how, or - * indeed if, we can put the process waiting for action to - * sleep. (We may be getting called through some other - * timeout running in the kernel.) - */ - while (1) { - if ((cc->ie_cmd_status & mask) || timedout) - break; - } - - untimeout(chan_attn_timeout, (caddr_t)&timedout, ch); - /* ignore cast-qual */ - - return (timedout); - } else { - - /* - * Otherwise, just wait for the command to be accepted. - */ - (*ie_softc[unit].ie_chan_attn) (unit); - - while (ie_softc[unit].scb->ie_command); /* spin lock */ - - return (0); - } -} - -/* - * Run the time-domain reflectometer... - */ -static void -run_tdr(int unit, struct ie_tdr_cmd *cmd) -{ - int result; - - cmd->com.ie_cmd_status = 0; - cmd->com.ie_cmd_cmd = IE_CMD_TDR | IE_CMD_LAST; - cmd->com.ie_cmd_link = 0xffff; - cmd->ie_tdr_time = 0; - - ie_softc[unit].scb->ie_command_list = MK_16(MEM, cmd); - cmd->ie_tdr_time = 0; - - if (command_and_wait(unit, IE_CU_START, cmd, IE_STAT_COMPL)) - result = 0x2000; - else - result = cmd->ie_tdr_time; - - ie_ack(ie_softc[unit].scb, IE_ST_WHENCE, unit, - ie_softc[unit].ie_chan_attn); - - if (result & IE_TDR_SUCCESS) - return; - - if (result & IE_TDR_XCVR) { - printf("ie%d: transceiver problem\n", unit); - } else if (result & IE_TDR_OPEN) { - printf("ie%d: TDR detected an open %d clocks away\n", unit, - result & IE_TDR_TIME); - } else if (result & IE_TDR_SHORT) { - printf("ie%d: TDR detected a short %d clocks away\n", unit, - result & IE_TDR_TIME); - } else { - printf("ie%d: TDR returned unknown status %x\n", unit, result); - } -} - -static void -start_receiver(int unit) -{ - int s = splimp(); - - ie_softc[unit].scb->ie_recv_list = MK_16(MEM, ie_softc[unit].rframes[0]); - command_and_wait(unit, IE_RU_START, 0, 0); - - ie_ack(ie_softc[unit].scb, IE_ST_WHENCE, unit, ie_softc[unit].ie_chan_attn); - - splx(s); -} - -/* - * Here is a helper routine for iernr() and ieinit(). This sets up - * the RFA. - */ -static caddr_t -setup_rfa(caddr_t ptr, struct ie_softc * ie) -{ - volatile struct ie_recv_frame_desc *rfd = (void *) ptr; - volatile struct ie_recv_buf_desc *rbd; - int i; - int unit = ie - &ie_softc[0]; - - /* First lay them out */ - for (i = 0; i < ie->nframes; i++) { - ie->rframes[i] = rfd; - bzero((char *) rfd, sizeof *rfd); /* ignore cast-qual */ - rfd++; - } - - ptr = (caddr_t) Align((caddr_t) rfd); /* ignore cast-qual */ - - /* Now link them together */ - for (i = 0; i < ie->nframes; i++) { - ie->rframes[i]->ie_fd_next = - MK_16(MEM, ie->rframes[(i + 1) % ie->nframes]); - } - - /* Finally, set the EOL bit on the last one. */ - ie->rframes[ie->nframes - 1]->ie_fd_last |= IE_FD_LAST; - - /* - * Now lay out some buffers for the incoming frames. Note that we - * set aside a bit of slop in each buffer, to make sure that we have - * enough space to hold a single frame in every buffer. - */ - rbd = (void *) ptr; - - for (i = 0; i < ie->nrxbufs; i++) { - ie->rbuffs[i] = rbd; - bzero((char *)rbd, sizeof *rbd); - ptr = (caddr_t) Align(ptr + sizeof *rbd); - rbd->ie_rbd_length = IE_RBUF_SIZE; - rbd->ie_rbd_buffer = MK_24(MEM, ptr); - ie->cbuffs[i] = (void *) ptr; - ptr += IE_RBUF_SIZE; - rbd = (void *) ptr; - } - - /* Now link them together */ - for (i = 0; i < ie->nrxbufs; i++) { - ie->rbuffs[i]->ie_rbd_next = - MK_16(MEM, ie->rbuffs[(i + 1) % ie->nrxbufs]); - } - - /* Tag EOF on the last one */ - ie->rbuffs[ie->nrxbufs - 1]->ie_rbd_length |= IE_RBD_LAST; - - /* - * We use the head and tail pointers on receive to keep track of the - * order in which RFDs and RBDs are used. - */ - ie->rfhead = 0; - ie->rftail = ie->nframes - 1; - ie->rbhead = 0; - ie->rbtail = ie->nrxbufs - 1; - - ie->scb->ie_recv_list = MK_16(MEM, ie->rframes[0]); - ie->rframes[0]->ie_fd_buf_desc = MK_16(MEM, ie->rbuffs[0]); - - ptr = Align(ptr); - return (ptr); -} - -/* - * Run the multicast setup command. - * Call at splimp(). - */ -static int -mc_setup(int unit, caddr_t ptr, - volatile struct ie_sys_ctl_block * scb) -{ - struct ie_softc *ie = &ie_softc[unit]; - volatile struct ie_mcast_cmd *cmd = (void *) ptr; - - cmd->com.ie_cmd_status = 0; - cmd->com.ie_cmd_cmd = IE_CMD_MCAST | IE_CMD_LAST; - cmd->com.ie_cmd_link = 0xffff; - - /* ignore cast-qual */ - bcopy((caddr_t) ie->mcast_addrs, (caddr_t) cmd->ie_mcast_addrs, - ie->mcast_count * sizeof *ie->mcast_addrs); - - cmd->ie_mcast_bytes = ie->mcast_count * 6; /* grrr... */ - - scb->ie_command_list = MK_16(MEM, cmd); - if (command_and_wait(unit, IE_CU_START, cmd, IE_STAT_COMPL) - || !(cmd->com.ie_cmd_status & IE_STAT_OK)) { - printf("ie%d: multicast address setup command failed\n", unit); - return (0); - } - return (1); -} - -/* - * This routine takes the environment generated by check_ie_present() - * and adds to it all the other structures we need to operate the adapter. - * This includes executing the CONFIGURE, IA-SETUP, and MC-SETUP commands, - * starting the receiver unit, and clearing interrupts. - * - * THIS ROUTINE MUST BE CALLED AT splimp() OR HIGHER. - */ -static void -ieinit(int unit) -{ - struct ie_softc *ie = &ie_softc[unit]; - volatile struct ie_sys_ctl_block *scb = ie->scb; - caddr_t ptr; - int i; - - ptr = (caddr_t) Align((caddr_t) scb + sizeof *scb); - - /* - * Send the configure command first. - */ - { - volatile struct ie_config_cmd *cmd = (void *) ptr; - - ie_setup_config(cmd, ie->promisc, - ie->hard_type == IE_STARLAN10); - cmd->com.ie_cmd_status = 0; - cmd->com.ie_cmd_cmd = IE_CMD_CONFIG | IE_CMD_LAST; - cmd->com.ie_cmd_link = 0xffff; - - scb->ie_command_list = MK_16(MEM, cmd); - - if (command_and_wait(unit, IE_CU_START, cmd, IE_STAT_COMPL) - || !(cmd->com.ie_cmd_status & IE_STAT_OK)) { - printf("ie%d: configure command failed\n", unit); - return; - } - } - /* - * Now send the Individual Address Setup command. - */ - { - volatile struct ie_iasetup_cmd *cmd = (void *) ptr; - - cmd->com.ie_cmd_status = 0; - cmd->com.ie_cmd_cmd = IE_CMD_IASETUP | IE_CMD_LAST; - cmd->com.ie_cmd_link = 0xffff; - - bcopy((char *)ie_softc[unit].arpcom.ac_enaddr, - (char *)&cmd->ie_address, sizeof cmd->ie_address); - scb->ie_command_list = MK_16(MEM, cmd); - if (command_and_wait(unit, IE_CU_START, cmd, IE_STAT_COMPL) - || !(cmd->com.ie_cmd_status & IE_STAT_OK)) { - printf("ie%d: individual address " - "setup command failed\n", unit); - return; - } - } - - /* - * Now run the time-domain reflectometer. - */ - run_tdr(unit, (void *) ptr); - - /* - * Acknowledge any interrupts we have generated thus far. - */ - ie_ack(ie->scb, IE_ST_WHENCE, unit, ie->ie_chan_attn); - - /* - * Set up the RFA. - */ - ptr = setup_rfa(ptr, ie); - - /* - * Finally, the transmit command and buffer are the last little bit - * of work. - */ - - /* transmit command buffers */ - for (i = 0; i < ie->ntxbufs; i++) { - ie->xmit_cmds[i] = (void *) ptr; - ptr += sizeof *ie->xmit_cmds[i]; - ptr = Align(ptr); - ie->xmit_buffs[i] = (void *)ptr; - ptr += sizeof *ie->xmit_buffs[i]; - ptr = Align(ptr); - } - - /* transmit buffers */ - for (i = 0; i < ie->ntxbufs - 1; i++) { - ie->xmit_cbuffs[i] = (void *)ptr; - ptr += IE_BUF_LEN; - ptr = Align(ptr); - } - ie->xmit_cbuffs[ie->ntxbufs - 1] = (void *) ptr; - - for (i = 1; i < ie->ntxbufs; i++) { - bzero((caddr_t) ie->xmit_cmds[i], sizeof *ie->xmit_cmds[i]); - bzero((caddr_t) ie->xmit_buffs[i], sizeof *ie->xmit_buffs[i]); - } - - /* - * This must be coordinated with iestart() and ietint(). - */ - ie->xmit_cmds[0]->ie_xmit_status = IE_STAT_COMPL; - - /* take the ee16 out of loopback */ - if (ie->hard_type == IE_EE16) { - u_int8_t bart_config; - - bart_config = inb(PORT + IEE16_CONFIG); - bart_config &= ~IEE16_BART_LOOPBACK; - /* inb doesn't get bit! */ - bart_config |= IEE16_BART_MCS16_TEST; - outb(PORT + IEE16_CONFIG, bart_config); - ee16_interrupt_enable(ie); - ee16_chan_attn(unit); - } - ie->arpcom.ac_if.if_flags |= IFF_RUNNING; /* tell higher levels - * we're here */ - start_receiver(unit); - - return; -} - -static void -ie_stop(int unit) -{ - command_and_wait(unit, IE_RU_DISABLE, 0, 0); -} - -static int -ieioctl(struct ifnet *ifp, u_long command, caddr_t data) -{ - struct ifaddr *ifa = (struct ifaddr *) data; -#if defined(IPX) || defined(NS) - struct ie_softc *ie = ifp->if_softc; -#endif - struct ifreq *ifr = (struct ifreq *) data; - int s, error = 0; - - s = splimp(); - - switch (command) { - case SIOCSIFADDR: - ifp->if_flags |= IFF_UP; - - switch (ifa->ifa_addr->sa_family) { -#ifdef INET - case AF_INET: - ieinit(ifp->if_unit); - arp_ifinit((struct arpcom *) ifp, ifa); - break; -#endif /* INET */ - -#ifdef IPX - /* - * This magic copied from if_is.c; I don't use XNS, - * so I have no way of telling if this actually - * works or not. - */ - case AF_IPX: - { - struct ipx_addr *ina = - &(IA_SIPX(ifa)->sipx_addr); - - if (ipx_nullhost(*ina)) { - ina->x_host = *(union ipx_host *) (ie->arpcom.ac_enaddr); - } else { - ifp->if_flags &= ~IFF_RUNNING; - bcopy((caddr_t) ina->x_host.c_host, - (caddr_t) ie->arpcom.ac_enaddr, - sizeof ie->arpcom.ac_enaddr); - } - - ieinit(ifp->if_unit); - } - break; -#endif /* IPX */ - -#ifdef NS - /* - * This magic copied from if_is.c; I don't use XNS, - * so I have no way of telling if this actually - * works or not. - */ - case AF_NS: - { - struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr); - - if (ns_nullhost(*ina)) { - ina->x_host = *(union ns_host *)(ie->arpcom.ac_enaddr); - } else { - ifp->if_flags &= ~IFF_RUNNING; - bcopy((caddr_t) ina->x_host.c_host, - (caddr_t) ie->arpcom.ac_enaddr, - sizeof ie->arpcom.ac_enaddr); - } - - ieinit(ifp->if_unit); - } - break; -#endif /* NS */ - - default: - ieinit(ifp->if_unit); - break; - } - break; - - case SIOCSIFFLAGS: - /* - * Note that this device doesn't have an "all multicast" - * mode, so we must turn on promiscuous mode and do the - * filtering manually. - */ - if ((ifp->if_flags & IFF_UP) == 0 && - (ifp->if_flags & IFF_RUNNING)) { - ifp->if_flags &= ~IFF_RUNNING; - ie_stop(ifp->if_unit); - } else if ((ifp->if_flags & IFF_UP) && - (ifp->if_flags & IFF_RUNNING) == 0) { - ie_softc[ifp->if_unit].promisc = - ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI); - ieinit(ifp->if_unit); - } else if (ie_softc[ifp->if_unit].promisc ^ - (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI))) { - ie_softc[ifp->if_unit].promisc = - ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI); - ieinit(ifp->if_unit); - } - break; - - case SIOCADDMULTI: - case SIOCDELMULTI: - /* - * Update multicast listeners - */ - /* reset multicast filtering */ - ie_mc_reset(ifp->if_unit); - error = 0; - break; - - case SIOCSIFMTU: - /* - * Set the interface MTU. - */ - if (ifr->ifr_mtu > ETHERMTU) { - error = EINVAL; - } else { - ifp->if_mtu = ifr->ifr_mtu; - } - break; - - default: - error = EINVAL; - } - - splx(s); - return (error); -} - -static void -ie_mc_reset(int unit) -{ - struct ie_softc *ie = &ie_softc[unit]; - struct ifmultiaddr *ifma; - - /* - * Step through the list of addresses. - */ - ie->mcast_count = 0; - for (ifma = ie->arpcom.ac_if.if_multiaddrs.lh_first; ifma; - ifma = ifma->ifma_link.le_next) { - if (ifma->ifma_addr->sa_family != AF_LINK) - continue; - - /* XXX - this is broken... */ - if (ie->mcast_count >= MAXMCAST) { - ie->arpcom.ac_if.if_flags |= IFF_ALLMULTI; - ieioctl(&ie->arpcom.ac_if, SIOCSIFFLAGS, (void *) 0); - goto setflag; - } - bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr), - &(ie->mcast_addrs[ie->mcast_count]), 6); - ie->mcast_count++; - } - -setflag: - ie->want_mcsetup = 1; -} - - -#ifdef DEBUG -static void -print_rbd(volatile struct ie_recv_buf_desc * rbd) -{ - printf("RBD at %p:\n" - "actual %04x, next %04x, buffer %p\n" - "length %04x, mbz %04x\n", - (void *) rbd, - rbd->ie_rbd_actual, rbd->ie_rbd_next, - (void *) rbd->ie_rbd_buffer, - rbd->ie_rbd_length, rbd->mbz); -} - -#endif /* DEBUG */ -#endif /* NIE > 0 */ |