2 * Copyright (c) 1995, David Greenman
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/ed/if_ed.c,v 1.224 2003/12/08 07:54:12 obrien Exp $
28 * $DragonFly: src/sys/dev/netif/ed/if_ed.c,v 1.11 2004/03/14 15:36:49 joerg Exp $
32 * Device driver for National Semiconductor DS8390/WD83C690 based ethernet
33 * adapters. By David Greenman, 29-April-1993
35 * Currently supports the Western Digital/SMC 8003 and 8013 series,
36 * the SMC Elite Ultra (8216), the 3Com 3c503, the NE1000 and NE2000,
37 * and a variety of similar clones.
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/sockio.h>
47 #include <sys/kernel.h>
48 #include <sys/socket.h>
49 #include <sys/syslog.h>
51 #include <sys/module.h>
54 #include <machine/bus.h>
56 #include <machine/resource.h>
58 #include <net/ethernet.h>
60 #include <net/if_arp.h>
61 #include <net/if_dl.h>
62 #include <net/if_mib.h>
63 #include <net/if_media.h>
66 #include <dev/netif/mii_layer/mii.h>
67 #include <dev/netif/mii_layer/miivar.h>
72 #include <net/bridge/bridge.h>
74 #include <machine/md_var.h>
79 devclass_t ed_devclass;
81 static void ed_init (void *);
82 static int ed_ioctl (struct ifnet *, u_long, caddr_t);
83 static void ed_start (struct ifnet *);
84 static void ed_reset (struct ifnet *);
85 static void ed_watchdog (struct ifnet *);
87 static void ed_tick (void *);
90 static void ds_getmcaf (struct ed_softc *, u_int32_t *);
92 static void ed_get_packet (struct ed_softc *, char *, /* u_short */ int);
94 static __inline void ed_rint (struct ed_softc *);
95 static __inline void ed_xmit (struct ed_softc *);
96 static __inline char * ed_ring_copy (struct ed_softc *, char *, char *,
98 static void ed_hpp_set_physical_link (struct ed_softc *);
99 static void ed_hpp_readmem (struct ed_softc *, int, unsigned char *,
101 static void ed_hpp_writemem (struct ed_softc *, unsigned char *,
102 /* u_short */ int, /* u_short */ int);
103 static u_short ed_hpp_write_mbufs (struct ed_softc *, struct mbuf *,
106 static u_short ed_pio_write_mbufs (struct ed_softc *, struct mbuf *,
109 static void ed_setrcr (struct ed_softc *);
111 static uint32_t ds_mchash (const uint8_t *);
113 DECLARE_DUMMY_MODULE(if_ed);
116 * Interrupt conversion table for WD/SMC ASIC/83C584
118 static unsigned short ed_intr_val[] = {
130 * Interrupt conversion table for 83C790
132 static unsigned short ed_790_intr_val[] = {
144 * Interrupt conversion table for the HP PC LAN+
147 static unsigned short ed_hpp_intr_val[] = {
167 * Generic probe routine for testing for the existance of a DS8390.
168 * Must be called after the NIC has just been reset. This routine
169 * works by looking at certain register values that are guaranteed
170 * to be initialized a certain way after power-up or reset. Seems
171 * not to currently work on the 83C690.
175 * Register reset bits set bits
176 * Command Register (CR) TXP, STA RD2, STP
177 * Interrupt Status (ISR) RST
178 * Interrupt Mask (IMR) All bits
179 * Data Control (DCR) LAS
180 * Transmit Config. (TCR) LB1, LB0
182 * We only look at the CR and ISR registers, however, because looking at
183 * the others would require changing register pages (which would be
184 * intrusive if this isn't an 8390).
186 * Return 1 if 8390 was found, 0 if not.
190 ed_probe_generic8390(sc)
193 if ((ed_nic_inb(sc, ED_P0_CR) &
194 (ED_CR_RD2 | ED_CR_TXP | ED_CR_STA | ED_CR_STP)) !=
195 (ED_CR_RD2 | ED_CR_STP))
197 if ((ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RST) != ED_ISR_RST)
204 * Probe and vendor-specific initialization routine for SMC/WD80x3 boards
207 ed_probe_WD80x3_generic(dev, flags, intr_vals)
210 unsigned short *intr_vals[];
212 struct ed_softc *sc = device_get_softc(dev);
215 u_int memsize, maddr;
216 u_char iptr, isa16bit, sum, totalsum;
217 u_long conf_maddr, conf_msize, irq, junk;
219 sc->chip_type = ED_CHIP_TYPE_DP8390;
221 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_TOSH_ETHER) {
222 totalsum = ED_WD_ROM_CHECKSUM_TOTAL_TOSH_ETHER;
223 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_POW);
227 totalsum = ED_WD_ROM_CHECKSUM_TOTAL;
230 * Attempt to do a checksum over the station address PROM. If it
231 * fails, it's probably not a SMC/WD board. There is a problem with
232 * this, though: some clone WD boards don't pass the checksum test.
233 * Danpex boards for one.
235 for (sum = 0, i = 0; i < 8; ++i)
236 sum += ed_asic_inb(sc, ED_WD_PROM + i);
238 if (sum != totalsum) {
241 * Checksum is invalid. This often happens with cheap WD8003E
242 * clones. In this case, the checksum byte (the eighth byte)
243 * seems to always be zero.
245 if (ed_asic_inb(sc, ED_WD_CARD_ID) != ED_TYPE_WD8003E ||
246 ed_asic_inb(sc, ED_WD_PROM + 7) != 0)
249 /* reset card to force it into a known state. */
250 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_TOSH_ETHER)
251 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_RST | ED_WD_MSR_POW);
253 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_RST);
256 ed_asic_outb(sc, ED_WD_MSR, ed_asic_inb(sc, ED_WD_MSR) & ~ED_WD_MSR_RST);
257 /* wait in the case this card is reading its EEROM */
260 sc->vendor = ED_VENDOR_WD_SMC;
261 sc->type = ed_asic_inb(sc, ED_WD_CARD_ID);
264 * Set initial values for width/size.
269 case ED_TYPE_WD8003S:
270 sc->type_str = "WD8003S";
272 case ED_TYPE_WD8003E:
273 sc->type_str = "WD8003E";
275 case ED_TYPE_WD8003EB:
276 sc->type_str = "WD8003EB";
278 case ED_TYPE_WD8003W:
279 sc->type_str = "WD8003W";
281 case ED_TYPE_WD8013EBT:
282 sc->type_str = "WD8013EBT";
286 case ED_TYPE_WD8013W:
287 sc->type_str = "WD8013W";
291 case ED_TYPE_WD8013EP: /* also WD8003EP */
292 if (ed_asic_inb(sc, ED_WD_ICR) & ED_WD_ICR_16BIT) {
295 sc->type_str = "WD8013EP";
297 sc->type_str = "WD8003EP";
300 case ED_TYPE_WD8013WC:
301 sc->type_str = "WD8013WC";
305 case ED_TYPE_WD8013EBP:
306 sc->type_str = "WD8013EBP";
310 case ED_TYPE_WD8013EPC:
311 sc->type_str = "WD8013EPC";
315 case ED_TYPE_SMC8216C: /* 8216 has 16K shared mem -- 8416 has 8K */
316 case ED_TYPE_SMC8216T:
317 if (sc->type == ED_TYPE_SMC8216C) {
318 sc->type_str = "SMC8216/SMC8216C";
320 sc->type_str = "SMC8216T";
323 ed_asic_outb(sc, ED_WD790_HWR,
324 ed_asic_inb(sc, ED_WD790_HWR) | ED_WD790_HWR_SWH);
325 switch (ed_asic_inb(sc, ED_WD790_RAR) & ED_WD790_RAR_SZ64) {
326 case ED_WD790_RAR_SZ64:
329 case ED_WD790_RAR_SZ32:
332 case ED_WD790_RAR_SZ16:
335 case ED_WD790_RAR_SZ8:
336 /* 8216 has 16K shared mem -- 8416 has 8K */
337 if (sc->type == ED_TYPE_SMC8216C) {
338 sc->type_str = "SMC8416C/SMC8416BT";
340 sc->type_str = "SMC8416T";
345 ed_asic_outb(sc, ED_WD790_HWR,
346 ed_asic_inb(sc, ED_WD790_HWR) & ~ED_WD790_HWR_SWH);
349 sc->chip_type = ED_CHIP_TYPE_WD790;
351 case ED_TYPE_TOSHIBA1:
352 sc->type_str = "Toshiba1";
356 case ED_TYPE_TOSHIBA4:
357 sc->type_str = "Toshiba4";
367 * Make some adjustments to initial values depending on what is found
370 if (isa16bit && (sc->type != ED_TYPE_WD8013EBT)
371 && (sc->type != ED_TYPE_TOSHIBA1) && (sc->type != ED_TYPE_TOSHIBA4)
372 && ((ed_asic_inb(sc, ED_WD_ICR) & ED_WD_ICR_16BIT) == 0)) {
377 error = bus_get_resource(dev, SYS_RES_MEMORY, 0,
378 &conf_maddr, &conf_msize);
383 printf("type = %x type_str=%s isa16bit=%d memsize=%d id_msize=%d\n",
384 sc->type, sc->type_str, isa16bit, memsize, conf_msize);
385 for (i = 0; i < 8; i++)
386 printf("%x -> %x\n", i, ed_asic_inb(sc, i));
390 * Allow the user to override the autoconfiguration
393 memsize = conf_msize;
396 if (maddr < 0xa0000 || maddr + memsize > 0x1000000) {
397 device_printf(dev, "Invalid ISA memory address range configured: 0x%x - 0x%x\n",
398 maddr, maddr + memsize);
403 * (note that if the user specifies both of the following flags that
404 * '8bit' mode intentionally has precedence)
406 if (flags & ED_FLAGS_FORCE_16BIT_MODE)
408 if (flags & ED_FLAGS_FORCE_8BIT_MODE)
412 * If possible, get the assigned interrupt number from the card and
415 if ((sc->type & ED_WD_SOFTCONFIG) &&
416 (sc->chip_type != ED_CHIP_TYPE_WD790)) {
419 * Assemble together the encoded interrupt number.
421 iptr = (ed_asic_inb(sc, ED_WD_ICR) & ED_WD_ICR_IR2) |
422 ((ed_asic_inb(sc, ED_WD_IRR) &
423 (ED_WD_IRR_IR0 | ED_WD_IRR_IR1)) >> 5);
426 * If no interrupt specified (or "?"), use what the board tells us.
428 error = bus_get_resource(dev, SYS_RES_IRQ, 0,
430 if (error && intr_vals[0] != NULL) {
431 error = bus_set_resource(dev, SYS_RES_IRQ, 0,
432 intr_vals[0][iptr], 1);
438 * Enable the interrupt.
440 ed_asic_outb(sc, ED_WD_IRR,
441 ed_asic_inb(sc, ED_WD_IRR) | ED_WD_IRR_IEN);
443 if (sc->chip_type == ED_CHIP_TYPE_WD790) {
444 ed_asic_outb(sc, ED_WD790_HWR,
445 ed_asic_inb(sc, ED_WD790_HWR) | ED_WD790_HWR_SWH);
446 iptr = (((ed_asic_inb(sc, ED_WD790_GCR) & ED_WD790_GCR_IR2) >> 4) |
447 (ed_asic_inb(sc, ED_WD790_GCR) &
448 (ED_WD790_GCR_IR1 | ED_WD790_GCR_IR0)) >> 2);
449 ed_asic_outb(sc, ED_WD790_HWR,
450 ed_asic_inb(sc, ED_WD790_HWR) & ~ED_WD790_HWR_SWH);
453 * If no interrupt specified (or "?"), use what the board tells us.
455 error = bus_get_resource(dev, SYS_RES_IRQ, 0,
457 if (error && intr_vals[1] != NULL) {
458 error = bus_set_resource(dev, SYS_RES_IRQ, 0,
459 intr_vals[1][iptr], 1);
467 ed_asic_outb(sc, ED_WD790_ICR,
468 ed_asic_inb(sc, ED_WD790_ICR) | ED_WD790_ICR_EIL);
470 error = bus_get_resource(dev, SYS_RES_IRQ, 0,
473 device_printf(dev, "%s cards don't support auto-detected/assigned interrupts.\n",
477 sc->isa16bit = isa16bit;
480 error = ed_alloc_memory(dev, 0, memsize);
482 printf("*** ed_alloc_memory() failed! (%d)\n", error);
485 sc->mem_start = (caddr_t) rman_get_virtual(sc->mem_res);
488 * allocate one xmit buffer if < 16k, two buffers otherwise
490 if ((memsize < 16384) ||
491 (flags & ED_FLAGS_NO_MULTI_BUFFERING)) {
496 sc->tx_page_start = ED_WD_PAGE_OFFSET;
497 sc->rec_page_start = ED_WD_PAGE_OFFSET + ED_TXBUF_SIZE * sc->txb_cnt;
498 sc->rec_page_stop = ED_WD_PAGE_OFFSET + memsize / ED_PAGE_SIZE;
499 sc->mem_ring = sc->mem_start + (ED_PAGE_SIZE * sc->rec_page_start);
500 sc->mem_size = memsize;
501 sc->mem_end = sc->mem_start + memsize;
504 * Get station address from on-board ROM
506 for (i = 0; i < ETHER_ADDR_LEN; ++i)
507 sc->arpcom.ac_enaddr[i] = ed_asic_inb(sc, ED_WD_PROM + i);
510 * Set upper address bits and 8/16 bit access to shared memory.
513 if (sc->chip_type == ED_CHIP_TYPE_WD790) {
514 sc->wd_laar_proto = ed_asic_inb(sc, ED_WD_LAAR);
516 sc->wd_laar_proto = ED_WD_LAAR_L16EN |
517 ((kvtop(sc->mem_start) >> 19) & ED_WD_LAAR_ADDRHI);
520 * Enable 16bit access
522 ed_asic_outb(sc, ED_WD_LAAR, sc->wd_laar_proto |
525 if (((sc->type & ED_WD_SOFTCONFIG) ||
526 (sc->type == ED_TYPE_TOSHIBA1) ||
527 (sc->type == ED_TYPE_TOSHIBA4) ||
528 (sc->type == ED_TYPE_WD8013EBT)) &&
529 (sc->chip_type != ED_CHIP_TYPE_WD790)) {
530 sc->wd_laar_proto = (kvtop(sc->mem_start) >> 19) &
532 ed_asic_outb(sc, ED_WD_LAAR, sc->wd_laar_proto);
537 * Set address and enable interface shared memory.
539 if (sc->chip_type != ED_CHIP_TYPE_WD790) {
540 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_TOSH_ETHER) {
541 ed_asic_outb(sc, ED_WD_MSR + 1,
542 ((kvtop(sc->mem_start) >> 8) & 0xe0) | 4);
543 ed_asic_outb(sc, ED_WD_MSR + 2,
544 ((kvtop(sc->mem_start) >> 16) & 0x0f));
545 ed_asic_outb(sc, ED_WD_MSR,
546 ED_WD_MSR_MENB | ED_WD_MSR_POW);
548 ed_asic_outb(sc, ED_WD_MSR,
549 ((kvtop(sc->mem_start) >> 13) &
550 ED_WD_MSR_ADDR) | ED_WD_MSR_MENB);
552 sc->cr_proto = ED_CR_RD2;
554 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_MENB);
555 ed_asic_outb(sc, ED_WD790_HWR, (ed_asic_inb(sc, ED_WD790_HWR) | ED_WD790_HWR_SWH));
556 ed_asic_outb(sc, ED_WD790_RAR, ((kvtop(sc->mem_start) >> 13) & 0x0f) |
557 ((kvtop(sc->mem_start) >> 11) & 0x40) |
558 (ed_asic_inb(sc, ED_WD790_RAR) & 0xb0));
559 ed_asic_outb(sc, ED_WD790_HWR, (ed_asic_inb(sc, ED_WD790_HWR) & ~ED_WD790_HWR_SWH));
564 printf("starting memory performance test at 0x%x, size %d...\n",
565 sc->mem_start, memsize*16384);
566 for (i = 0; i < 16384; i++)
567 bzero(sc->mem_start, memsize);
568 printf("***DONE***\n");
572 * Now zero memory and verify that it is clear
574 bzero(sc->mem_start, memsize);
576 for (i = 0; i < memsize; ++i) {
577 if (sc->mem_start[i]) {
578 device_printf(dev, "failed to clear shared memory at %llx - check configuration\n",
579 (long long)kvtop(sc->mem_start + i));
582 * Disable 16 bit access to shared memory
585 if (sc->chip_type == ED_CHIP_TYPE_WD790) {
586 ed_asic_outb(sc, ED_WD_MSR, 0x00);
588 ed_asic_outb(sc, ED_WD_LAAR, sc->wd_laar_proto &
596 * Disable 16bit access to shared memory - we leave it
597 * disabled so that 1) machines reboot properly when the board
598 * is set 16 bit mode and there are conflicting 8bit
599 * devices/ROMS in the same 128k address space as this boards
600 * shared memory. and 2) so that other 8 bit devices with
601 * shared memory can be used in this 128k region, too.
604 if (sc->chip_type == ED_CHIP_TYPE_WD790) {
605 ed_asic_outb(sc, ED_WD_MSR, 0x00);
607 ed_asic_outb(sc, ED_WD_LAAR, sc->wd_laar_proto &
614 ed_probe_WD80x3(dev, port_rid, flags)
619 struct ed_softc *sc = device_get_softc(dev);
621 static unsigned short *intr_vals[] = {ed_intr_val, ed_790_intr_val};
623 error = ed_alloc_port(dev, port_rid, ED_WD_IO_PORTS);
627 sc->asic_offset = ED_WD_ASIC_OFFSET;
628 sc->nic_offset = ED_WD_NIC_OFFSET;
630 return ed_probe_WD80x3_generic(dev, flags, intr_vals);
634 * Probe and vendor-specific initialization routine for 3Com 3c503 boards
637 ed_probe_3Com(dev, port_rid, flags)
642 struct ed_softc *sc = device_get_softc(dev);
647 u_long conf_maddr, conf_msize, irq, junk;
649 error = ed_alloc_port(dev, 0, ED_3COM_IO_PORTS);
653 sc->asic_offset = ED_3COM_ASIC_OFFSET;
654 sc->nic_offset = ED_3COM_NIC_OFFSET;
657 * Verify that the kernel configured I/O address matches the board
660 switch (ed_asic_inb(sc, ED_3COM_BCFR)) {
661 case ED_3COM_BCFR_300:
662 if (rman_get_start(sc->port_res) != 0x300)
665 case ED_3COM_BCFR_310:
666 if (rman_get_start(sc->port_res) != 0x310)
669 case ED_3COM_BCFR_330:
670 if (rman_get_start(sc->port_res) != 0x330)
673 case ED_3COM_BCFR_350:
674 if (rman_get_start(sc->port_res) != 0x350)
677 case ED_3COM_BCFR_250:
678 if (rman_get_start(sc->port_res) != 0x250)
681 case ED_3COM_BCFR_280:
682 if (rman_get_start(sc->port_res) != 0x280)
685 case ED_3COM_BCFR_2A0:
686 if (rman_get_start(sc->port_res) != 0x2a0)
689 case ED_3COM_BCFR_2E0:
690 if (rman_get_start(sc->port_res) != 0x2e0)
697 error = bus_get_resource(dev, SYS_RES_MEMORY, 0,
698 &conf_maddr, &conf_msize);
703 * Verify that the kernel shared memory address matches the board
704 * configured address.
706 switch (ed_asic_inb(sc, ED_3COM_PCFR)) {
707 case ED_3COM_PCFR_DC000:
708 if (conf_maddr != 0xdc000)
711 case ED_3COM_PCFR_D8000:
712 if (conf_maddr != 0xd8000)
715 case ED_3COM_PCFR_CC000:
716 if (conf_maddr != 0xcc000)
719 case ED_3COM_PCFR_C8000:
720 if (conf_maddr != 0xc8000)
729 * Reset NIC and ASIC. Enable on-board transceiver throughout reset
730 * sequence because it'll lock up if the cable isn't connected if we
733 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_RST | ED_3COM_CR_XSEL);
736 * Wait for a while, then un-reset it
741 * The 3Com ASIC defaults to rather strange settings for the CR after
742 * a reset - it's important to set it again after the following outb
743 * (this is done when we map the PROM below).
745 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL);
748 * Wait a bit for the NIC to recover from the reset
752 sc->vendor = ED_VENDOR_3COM;
753 sc->type_str = "3c503";
755 sc->cr_proto = ED_CR_RD2;
758 * Hmmm...a 16bit 3Com board has 16k of memory, but only an 8k window
764 * Get station address from on-board ROM
768 * First, map ethernet address PROM over the top of where the NIC
769 * registers normally appear.
771 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_EALO | ED_3COM_CR_XSEL);
773 for (i = 0; i < ETHER_ADDR_LEN; ++i)
774 sc->arpcom.ac_enaddr[i] = ed_nic_inb(sc, i);
777 * Unmap PROM - select NIC registers. The proper setting of the
778 * tranceiver is set in ed_init so that the attach code is given a
779 * chance to set the default based on a compile-time config option
781 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL);
784 * Determine if this is an 8bit or 16bit board
788 * select page 0 registers
790 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
793 * Attempt to clear WTS bit. If it doesn't clear, then this is a 16bit
796 ed_nic_outb(sc, ED_P0_DCR, 0);
799 * select page 2 registers
801 ed_nic_outb(sc, ED_P0_CR, ED_CR_PAGE_2 | ED_CR_RD2 | ED_CR_STP);
804 * The 3c503 forces the WTS bit to a one if this is a 16bit board
806 if (ed_nic_inb(sc, ED_P2_DCR) & ED_DCR_WTS)
812 * select page 0 registers
814 ed_nic_outb(sc, ED_P2_CR, ED_CR_RD2 | ED_CR_STP);
816 error = ed_alloc_memory(dev, 0, memsize);
820 sc->mem_start = (caddr_t) rman_get_virtual(sc->mem_res);
821 sc->mem_size = memsize;
822 sc->mem_end = sc->mem_start + memsize;
825 * We have an entire 8k window to put the transmit buffers on the
826 * 16bit boards. But since the 16bit 3c503's shared memory is only
827 * fast enough to overlap the loading of one full-size packet, trying
828 * to load more than 2 buffers can actually leave the transmitter idle
829 * during the load. So 2 seems the best value. (Although a mix of
830 * variable-sized packets might change this assumption. Nonetheless,
831 * we optimize for linear transfers of same-size packets.)
834 if (flags & ED_FLAGS_NO_MULTI_BUFFERING)
839 sc->tx_page_start = ED_3COM_TX_PAGE_OFFSET_16BIT;
840 sc->rec_page_start = ED_3COM_RX_PAGE_OFFSET_16BIT;
841 sc->rec_page_stop = memsize / ED_PAGE_SIZE +
842 ED_3COM_RX_PAGE_OFFSET_16BIT;
843 sc->mem_ring = sc->mem_start;
846 sc->tx_page_start = ED_3COM_TX_PAGE_OFFSET_8BIT;
847 sc->rec_page_start = ED_TXBUF_SIZE + ED_3COM_TX_PAGE_OFFSET_8BIT;
848 sc->rec_page_stop = memsize / ED_PAGE_SIZE +
849 ED_3COM_TX_PAGE_OFFSET_8BIT;
850 sc->mem_ring = sc->mem_start + (ED_PAGE_SIZE * ED_TXBUF_SIZE);
853 sc->isa16bit = isa16bit;
856 * Initialize GA page start/stop registers. Probably only needed if
857 * doing DMA, but what the hell.
859 ed_asic_outb(sc, ED_3COM_PSTR, sc->rec_page_start);
860 ed_asic_outb(sc, ED_3COM_PSPR, sc->rec_page_stop);
863 * Set IRQ. 3c503 only allows a choice of irq 2-5.
865 error = bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, &junk);
872 ed_asic_outb(sc, ED_3COM_IDCFR, ED_3COM_IDCFR_IRQ2);
875 ed_asic_outb(sc, ED_3COM_IDCFR, ED_3COM_IDCFR_IRQ3);
878 ed_asic_outb(sc, ED_3COM_IDCFR, ED_3COM_IDCFR_IRQ4);
881 ed_asic_outb(sc, ED_3COM_IDCFR, ED_3COM_IDCFR_IRQ5);
884 device_printf(dev, "Invalid irq configuration (%ld) must be 3-5,9 for 3c503\n",
890 * Initialize GA configuration register. Set bank and enable shared
893 ed_asic_outb(sc, ED_3COM_GACFR, ED_3COM_GACFR_RSEL |
897 * Initialize "Vector Pointer" registers. These gawd-awful things are
898 * compared to 20 bits of the address on ISA, and if they match, the
899 * shared memory is disabled. We set them to 0xffff0...allegedly the
902 ed_asic_outb(sc, ED_3COM_VPTR2, 0xff);
903 ed_asic_outb(sc, ED_3COM_VPTR1, 0xff);
904 ed_asic_outb(sc, ED_3COM_VPTR0, 0x00);
907 * Zero memory and verify that it is clear
909 bzero(sc->mem_start, memsize);
911 for (i = 0; i < memsize; ++i)
912 if (sc->mem_start[i]) {
913 device_printf(dev, "failed to clear shared memory at %llx - check configuration\n",
914 (unsigned long long)kvtop(sc->mem_start + i));
921 * Probe and vendor-specific initialization routine for SIC boards
924 ed_probe_SIC(dev, port_rid, flags)
929 struct ed_softc *sc = device_get_softc(dev);
933 u_long conf_maddr, conf_msize;
936 error = ed_alloc_port(dev, 0, ED_SIC_IO_PORTS);
940 sc->asic_offset = ED_SIC_ASIC_OFFSET;
941 sc->nic_offset = ED_SIC_NIC_OFFSET;
943 error = bus_get_resource(dev, SYS_RES_MEMORY, 0,
944 &conf_maddr, &conf_msize);
950 memsize = conf_msize;
952 error = ed_alloc_memory(dev, 0, memsize);
956 sc->mem_start = (caddr_t) rman_get_virtual(sc->mem_res);
957 sc->mem_size = memsize;
959 /* Reset card to force it into a known state. */
960 ed_asic_outb(sc, 0, 0x00);
964 * Here we check the card ROM, if the checksum passes, and the
965 * type code and ethernet address check out, then we know we have
968 ed_asic_outb(sc, 0, 0x81);
971 sum = sc->mem_start[6];
972 for (i = 0; i < ETHER_ADDR_LEN; i++) {
973 sum ^= (sc->arpcom.ac_enaddr[i] = sc->mem_start[i]);
976 device_printf(dev, "ed_probe_sic: got address %6D\n",
977 sc->arpcom.ac_enaddr, ":");
982 if ((sc->arpcom.ac_enaddr[0] | sc->arpcom.ac_enaddr[1] |
983 sc->arpcom.ac_enaddr[2]) == 0) {
987 sc->vendor = ED_VENDOR_SIC;
988 sc->type_str = "SIC";
993 * SIC RAM page 0x0000-0x3fff(or 0x7fff)
995 ed_asic_outb(sc, 0, 0x80);
999 * Now zero memory and verify that it is clear
1001 bzero(sc->mem_start, sc->mem_size);
1003 for (i = 0; i < sc->mem_size; i++) {
1004 if (sc->mem_start[i]) {
1005 device_printf(dev, "failed to clear shared memory "
1006 "at %llx - check configuration\n",
1007 (long long)kvtop(sc->mem_start + i));
1014 sc->mem_end = sc->mem_start + sc->mem_size;
1017 * allocate one xmit buffer if < 16k, two buffers otherwise
1019 if ((sc->mem_size < 16384) || (flags & ED_FLAGS_NO_MULTI_BUFFERING)) {
1024 sc->tx_page_start = 0;
1026 sc->rec_page_start = sc->tx_page_start + ED_TXBUF_SIZE * sc->txb_cnt;
1027 sc->rec_page_stop = sc->tx_page_start + sc->mem_size / ED_PAGE_SIZE;
1029 sc->mem_ring = sc->mem_start + sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE;
1035 * Probe and vendor-specific initialization routine for NE1000/2000 boards
1038 ed_probe_Novell_generic(dev, flags)
1042 struct ed_softc *sc = device_get_softc(dev);
1044 u_char romdata[16], tmp;
1045 static char test_pattern[32] = "THIS is A memory TEST pattern";
1046 char test_buffer[32];
1048 /* XXX - do Novell-specific probe here */
1050 /* Reset the board */
1051 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) {
1052 ed_asic_outb(sc, ED_NOVELL_RESET, 0);
1055 tmp = ed_asic_inb(sc, ED_NOVELL_RESET);
1058 * I don't know if this is necessary; probably cruft leftover from
1059 * Clarkson packet driver code. Doesn't do a thing on the boards I've
1060 * tested. -DG [note that an outb(0x84, 0) seems to work here, and is
1061 * non-invasive...but some boards don't seem to reset and I don't have
1062 * complete documentation on what the 'right' thing to do is...so we
1063 * do the invasive thing for now. Yuck.]
1065 ed_asic_outb(sc, ED_NOVELL_RESET, tmp);
1069 * This is needed because some NE clones apparently don't reset the
1070 * NIC properly (or the NIC chip doesn't reset fully on power-up) XXX
1071 * - this makes the probe invasive! ...Done against my better
1074 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
1078 /* Make sure that we really have an 8390 based board */
1079 if (!ed_probe_generic8390(sc))
1082 sc->vendor = ED_VENDOR_NOVELL;
1084 sc->cr_proto = ED_CR_RD2;
1087 * Test the ability to read and write to the NIC memory. This has the
1088 * side affect of determining if this is an NE1000 or an NE2000.
1092 * This prevents packets from being stored in the NIC memory when the
1093 * readmem routine turns on the start bit in the CR.
1095 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_MON);
1097 /* Temporarily initialize DCR for byte operations */
1098 ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_LS);
1100 ed_nic_outb(sc, ED_P0_PSTART, 8192 / ED_PAGE_SIZE);
1101 ed_nic_outb(sc, ED_P0_PSTOP, 16384 / ED_PAGE_SIZE);
1106 * Write a test pattern in byte mode. If this fails, then there
1107 * probably isn't any memory at 8k - which likely means that the board
1110 ed_pio_writemem(sc, test_pattern, 8192, sizeof(test_pattern));
1111 ed_pio_readmem(sc, 8192, test_buffer, sizeof(test_pattern));
1113 if (bcmp(test_pattern, test_buffer, sizeof(test_pattern)) == 0) {
1114 sc->type = ED_TYPE_NE1000;
1115 sc->type_str = "NE1000";
1118 /* neither an NE1000 nor a Linksys - try NE2000 */
1119 ed_nic_outb(sc, ED_P0_DCR, ED_DCR_WTS | ED_DCR_FT1 | ED_DCR_LS);
1120 ed_nic_outb(sc, ED_P0_PSTART, 16384 / ED_PAGE_SIZE);
1121 ed_nic_outb(sc, ED_P0_PSTOP, 32768 / ED_PAGE_SIZE);
1126 * Write a test pattern in word mode. If this also fails, then
1127 * we don't know what this board is.
1129 ed_pio_writemem(sc, test_pattern, 16384, sizeof(test_pattern));
1130 ed_pio_readmem(sc, 16384, test_buffer, sizeof(test_pattern));
1131 if (bcmp(test_pattern, test_buffer, sizeof(test_pattern)) == 0) {
1132 sc->type = ED_TYPE_NE2000;
1133 sc->type_str = "NE2000";
1140 /* 8k of memory plus an additional 8k if 16bit */
1141 memsize = 8192 + sc->isa16bit * 8192;
1143 #if 0 /* probably not useful - NE boards only come two ways */
1144 /* allow kernel config file overrides */
1145 if (isa_dev->id_msize)
1146 memsize = isa_dev->id_msize;
1149 sc->mem_size = memsize;
1151 /* NIC memory doesn't start at zero on an NE board */
1152 /* The start address is tied to the bus width */
1153 sc->mem_start = (char *) 8192 + sc->isa16bit * 8192;
1154 sc->mem_end = sc->mem_start + memsize;
1155 sc->tx_page_start = memsize / ED_PAGE_SIZE;
1157 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) {
1158 int x, i, mstart = 0, msize = 0;
1159 char pbuf0[ED_PAGE_SIZE], pbuf[ED_PAGE_SIZE], tbuf[ED_PAGE_SIZE];
1161 for (i = 0; i < ED_PAGE_SIZE; i++)
1164 /* Clear all the memory. */
1165 for (x = 1; x < 256; x++)
1166 ed_pio_writemem(sc, pbuf0, x * 256, ED_PAGE_SIZE);
1168 /* Search for the start of RAM. */
1169 for (x = 1; x < 256; x++) {
1170 ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE);
1171 if (bcmp(pbuf0, tbuf, ED_PAGE_SIZE) == 0) {
1172 for (i = 0; i < ED_PAGE_SIZE; i++)
1174 ed_pio_writemem(sc, pbuf, x * 256, ED_PAGE_SIZE);
1175 ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE);
1176 if (bcmp(pbuf, tbuf, ED_PAGE_SIZE) == 0) {
1177 mstart = x * ED_PAGE_SIZE;
1178 msize = ED_PAGE_SIZE;
1185 device_printf(dev, "Cannot find start of RAM.\n");
1188 /* Search for the start of RAM. */
1189 for (x = (mstart / ED_PAGE_SIZE) + 1; x < 256; x++) {
1190 ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE);
1191 if (bcmp(pbuf0, tbuf, ED_PAGE_SIZE) == 0) {
1192 for (i = 0; i < ED_PAGE_SIZE; i++)
1194 ed_pio_writemem(sc, pbuf, x * 256, ED_PAGE_SIZE);
1195 ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE);
1196 if (bcmp(pbuf, tbuf, ED_PAGE_SIZE) == 0)
1197 msize += ED_PAGE_SIZE;
1207 device_printf(dev, "Cannot find any RAM, start : %d, x = %d.\n", mstart, x);
1210 device_printf(dev, "RAM start at %d, size : %d.\n", mstart, msize);
1212 sc->mem_size = msize;
1213 sc->mem_start = (caddr_t) mstart;
1214 sc->mem_end = (caddr_t) (msize + mstart);
1215 sc->tx_page_start = mstart / ED_PAGE_SIZE;
1219 * Use one xmit buffer if < 16k, two buffers otherwise (if not told
1222 if ((memsize < 16384) || (flags & ED_FLAGS_NO_MULTI_BUFFERING))
1227 sc->rec_page_start = sc->tx_page_start + sc->txb_cnt * ED_TXBUF_SIZE;
1228 sc->rec_page_stop = sc->tx_page_start + memsize / ED_PAGE_SIZE;
1230 sc->mem_ring = sc->mem_start + sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE;
1232 ed_pio_readmem(sc, 0, romdata, 16);
1233 for (n = 0; n < ETHER_ADDR_LEN; n++)
1234 sc->arpcom.ac_enaddr[n] = romdata[n * (sc->isa16bit + 1)];
1236 if ((ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) &&
1237 (sc->arpcom.ac_enaddr[2] == 0x86)) {
1238 sc->type_str = "Gateway AT";
1241 /* clear any pending interrupts that might have occurred above */
1242 ed_nic_outb(sc, ED_P0_ISR, 0xff);
1248 ed_probe_Novell(dev, port_rid, flags)
1253 struct ed_softc *sc = device_get_softc(dev);
1256 error = ed_alloc_port(dev, port_rid, ED_NOVELL_IO_PORTS);
1260 sc->asic_offset = ED_NOVELL_ASIC_OFFSET;
1261 sc->nic_offset = ED_NOVELL_NIC_OFFSET;
1263 return ed_probe_Novell_generic(dev, flags);
1266 #define ED_HPP_TEST_SIZE 16
1269 * Probe and vendor specific initialization for the HP PC Lan+ Cards.
1270 * (HP Part nos: 27247B and 27252A).
1272 * The card has an asic wrapper around a DS8390 core. The asic handles
1273 * host accesses and offers both standard register IO and memory mapped
1274 * IO. Memory mapped I/O allows better performance at the expense of greater
1275 * chance of an incompatibility with existing ISA cards.
1277 * The card has a few caveats: it isn't tolerant of byte wide accesses, only
1278 * short (16 bit) or word (32 bit) accesses are allowed. Some card revisions
1279 * don't allow 32 bit accesses; these are indicated by a bit in the software
1280 * ID register (see if_edreg.h).
1282 * Other caveats are: we should read the MAC address only when the card
1285 * For more information; please consult the CRYNWR packet driver.
1287 * The AUI port is turned on using the "link2" option on the ifconfig
1291 ed_probe_HP_pclanp(dev, port_rid, flags)
1296 struct ed_softc *sc = device_get_softc(dev);
1298 int n; /* temp var */
1299 int memsize; /* mem on board */
1300 u_char checksum; /* checksum of board address */
1301 u_char irq; /* board configured IRQ */
1302 char test_pattern[ED_HPP_TEST_SIZE]; /* read/write areas for */
1303 char test_buffer[ED_HPP_TEST_SIZE]; /* probing card */
1304 u_long conf_maddr, conf_msize, conf_irq, junk;
1306 error = ed_alloc_port(dev, 0, ED_HPP_IO_PORTS);
1310 /* Fill in basic information */
1311 sc->asic_offset = ED_HPP_ASIC_OFFSET;
1312 sc->nic_offset = ED_HPP_NIC_OFFSET;
1314 sc->chip_type = ED_CHIP_TYPE_DP8390;
1315 sc->isa16bit = 0; /* the 8390 core needs to be in byte mode */
1318 * Look for the HP PCLAN+ signature: "0x50,0x48,0x00,0x53"
1321 if ((ed_asic_inb(sc, ED_HPP_ID) != 0x50) ||
1322 (ed_asic_inb(sc, ED_HPP_ID + 1) != 0x48) ||
1323 ((ed_asic_inb(sc, ED_HPP_ID + 2) & 0xF0) != 0) ||
1324 (ed_asic_inb(sc, ED_HPP_ID + 3) != 0x53))
1328 * Read the MAC address and verify checksum on the address.
1331 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_MAC);
1332 for (n = 0, checksum = 0; n < ETHER_ADDR_LEN; n++)
1333 checksum += (sc->arpcom.ac_enaddr[n] =
1334 ed_asic_inb(sc, ED_HPP_MAC_ADDR + n));
1336 checksum += ed_asic_inb(sc, ED_HPP_MAC_ADDR + ETHER_ADDR_LEN);
1338 if (checksum != 0xFF)
1342 * Verify that the software model number is 0.
1345 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_ID);
1346 if (((sc->hpp_id = ed_asic_inw(sc, ED_HPP_PAGE_4)) &
1347 ED_HPP_ID_SOFT_MODEL_MASK) != 0x0000)
1351 * Read in and save the current options configured on card.
1354 sc->hpp_options = ed_asic_inw(sc, ED_HPP_OPTION);
1356 sc->hpp_options |= (ED_HPP_OPTION_NIC_RESET |
1357 ED_HPP_OPTION_CHIP_RESET |
1358 ED_HPP_OPTION_ENABLE_IRQ);
1361 * Reset the chip. This requires writing to the option register
1362 * so take care to preserve the other bits.
1365 ed_asic_outw(sc, ED_HPP_OPTION,
1366 (sc->hpp_options & ~(ED_HPP_OPTION_NIC_RESET |
1367 ED_HPP_OPTION_CHIP_RESET)));
1369 DELAY(5000); /* wait for chip reset to complete */
1371 ed_asic_outw(sc, ED_HPP_OPTION,
1372 (sc->hpp_options | (ED_HPP_OPTION_NIC_RESET |
1373 ED_HPP_OPTION_CHIP_RESET |
1374 ED_HPP_OPTION_ENABLE_IRQ)));
1378 if (!(ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RST))
1379 return ENXIO; /* reset did not complete */
1382 * Read out configuration information.
1385 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_HW);
1387 irq = ed_asic_inb(sc, ED_HPP_HW_IRQ);
1390 * Check for impossible IRQ.
1393 if (irq >= (sizeof(ed_hpp_intr_val) / sizeof(ed_hpp_intr_val[0])))
1397 * If the kernel IRQ was specified with a '?' use the cards idea
1398 * of the IRQ. If the kernel IRQ was explicitly specified, it
1399 * should match that of the hardware.
1401 error = bus_get_resource(dev, SYS_RES_IRQ, 0,
1404 bus_set_resource(dev, SYS_RES_IRQ, 0,
1405 ed_hpp_intr_val[irq], 1);
1407 if (conf_irq != ed_hpp_intr_val[irq])
1412 * Fill in softconfig info.
1415 sc->vendor = ED_VENDOR_HP;
1416 sc->type = ED_TYPE_HP_PCLANPLUS;
1417 sc->type_str = "HP-PCLAN+";
1419 sc->mem_shared = 0; /* we DON'T have dual ported RAM */
1420 sc->mem_start = 0; /* we use offsets inside the card RAM */
1422 sc->hpp_mem_start = NULL;/* no memory mapped I/O by default */
1425 * The board has 32KB of memory. Is there a way to determine
1426 * this programmatically?
1432 * Check if memory mapping of the I/O registers possible.
1435 if (sc->hpp_options & ED_HPP_OPTION_MEM_ENABLE)
1440 * determine the memory address from the board.
1443 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_HW);
1444 mem_addr = (ed_asic_inw(sc, ED_HPP_HW_MEM_MAP) << 8);
1447 * Check that the kernel specified start of memory and
1448 * hardware's idea of it match.
1450 error = bus_get_resource(dev, SYS_RES_MEMORY, 0,
1451 &conf_maddr, &conf_msize);
1455 if (mem_addr != conf_maddr)
1458 error = ed_alloc_memory(dev, 0, memsize);
1462 sc->hpp_mem_start = rman_get_virtual(sc->mem_res);
1466 * Fill in the rest of the soft config structure.
1470 * The transmit page index.
1473 sc->tx_page_start = ED_HPP_TX_PAGE_OFFSET;
1475 if (device_get_flags(dev) & ED_FLAGS_NO_MULTI_BUFFERING)
1481 * Memory description
1484 sc->mem_size = memsize;
1485 sc->mem_ring = sc->mem_start +
1486 (sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE);
1487 sc->mem_end = sc->mem_start + sc->mem_size;
1490 * Receive area starts after the transmit area and
1491 * continues till the end of memory.
1494 sc->rec_page_start = sc->tx_page_start +
1495 (sc->txb_cnt * ED_TXBUF_SIZE);
1496 sc->rec_page_stop = (sc->mem_size / ED_PAGE_SIZE);
1499 sc->cr_proto = 0; /* value works */
1502 * Set the wrap registers for string I/O reads.
1505 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_HW);
1506 ed_asic_outw(sc, ED_HPP_HW_WRAP,
1507 ((sc->rec_page_start / ED_PAGE_SIZE) |
1508 (((sc->rec_page_stop / ED_PAGE_SIZE) - 1) << 8)));
1511 * Reset the register page to normal operation.
1514 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_PERF);
1517 * Verify that we can read/write from adapter memory.
1518 * Create test pattern.
1521 for (n = 0; n < ED_HPP_TEST_SIZE; n++)
1523 test_pattern[n] = (n*n) ^ ~n;
1526 #undef ED_HPP_TEST_SIZE
1529 * Check that the memory is accessible thru the I/O ports.
1530 * Write out the contents of "test_pattern", read back
1531 * into "test_buffer" and compare the two for any
1535 for (n = 0; n < (32768 / ED_PAGE_SIZE); n ++) {
1537 ed_hpp_writemem(sc, test_pattern, (n * ED_PAGE_SIZE),
1538 sizeof(test_pattern));
1539 ed_hpp_readmem(sc, (n * ED_PAGE_SIZE),
1540 test_buffer, sizeof(test_pattern));
1542 if (bcmp(test_pattern, test_buffer,
1543 sizeof(test_pattern)))
1552 * HP PC Lan+ : Set the physical link to use AUI or TP/TL.
1556 ed_hpp_set_physical_link(struct ed_softc *sc)
1558 struct ifnet *ifp = &sc->arpcom.ac_if;
1561 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_LAN);
1562 lan_page = ed_asic_inw(sc, ED_HPP_PAGE_0);
1564 if (ifp->if_flags & IFF_ALTPHYS) {
1570 lan_page |= ED_HPP_LAN_AUI;
1572 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_LAN);
1573 ed_asic_outw(sc, ED_HPP_PAGE_0, lan_page);
1579 * Use the ThinLan interface
1582 lan_page &= ~ED_HPP_LAN_AUI;
1584 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_LAN);
1585 ed_asic_outw(sc, ED_HPP_PAGE_0, lan_page);
1590 * Wait for the lan card to re-initialize itself
1593 DELAY(150000); /* wait 150 ms */
1596 * Restore normal pages.
1599 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_PERF);
1604 * Allocate a port resource with the given resource id.
1607 ed_alloc_port(dev, rid, size)
1612 struct ed_softc *sc = device_get_softc(dev);
1613 struct resource *res;
1615 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
1616 0ul, ~0ul, size, RF_ACTIVE);
1620 sc->port_used = size;
1628 * Allocate a memory resource with the given resource id.
1631 ed_alloc_memory(dev, rid, size)
1636 struct ed_softc *sc = device_get_softc(dev);
1637 struct resource *res;
1639 res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
1640 0ul, ~0ul, size, RF_ACTIVE);
1644 sc->mem_used = size;
1652 * Allocate an irq resource with the given resource id.
1655 ed_alloc_irq(dev, rid, flags)
1660 struct ed_softc *sc = device_get_softc(dev);
1661 struct resource *res;
1663 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
1664 0ul, ~0ul, 1, (RF_ACTIVE | flags));
1675 * Release all resources
1678 ed_release_resources(dev)
1681 struct ed_softc *sc = device_get_softc(dev);
1684 bus_deactivate_resource(dev, SYS_RES_IOPORT,
1685 sc->port_rid, sc->port_res);
1686 bus_release_resource(dev, SYS_RES_IOPORT,
1687 sc->port_rid, sc->port_res);
1691 bus_deactivate_resource(dev, SYS_RES_MEMORY,
1692 sc->mem_rid, sc->mem_res);
1693 bus_release_resource(dev, SYS_RES_MEMORY,
1694 sc->mem_rid, sc->mem_res);
1698 bus_deactivate_resource(dev, SYS_RES_IRQ,
1699 sc->irq_rid, sc->irq_res);
1700 bus_release_resource(dev, SYS_RES_IRQ,
1701 sc->irq_rid, sc->irq_res);
1707 * Install interface into kernel networking data structures
1710 ed_attach(device_t dev)
1712 struct ed_softc *sc = device_get_softc(dev);
1713 struct ifnet *ifp = &sc->arpcom.ac_if;
1715 callout_handle_init(&sc->tick_ch);
1717 * Set interface to stopped condition (reset)
1722 * Initialize ifnet structure
1725 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
1726 ifp->if_output = ether_output;
1727 ifp->if_mtu = ETHERMTU;
1728 ifp->if_start = ed_start;
1729 ifp->if_ioctl = ed_ioctl;
1730 ifp->if_watchdog = ed_watchdog;
1731 ifp->if_init = ed_init;
1732 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
1733 ifp->if_linkmib = &sc->mibdata;
1734 ifp->if_linkmiblen = sizeof sc->mibdata;
1735 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
1737 * XXX - should do a better job.
1739 if (sc->chip_type == ED_CHIP_TYPE_WD790)
1740 sc->mibdata.dot3StatsEtherChipSet =
1741 DOT3CHIPSET(dot3VendorWesternDigital,
1742 dot3ChipSetWesternDigital83C790);
1744 sc->mibdata.dot3StatsEtherChipSet =
1745 DOT3CHIPSET(dot3VendorNational,
1746 dot3ChipSetNational8390);
1747 sc->mibdata.dot3Compliance = DOT3COMPLIANCE_COLLS;
1750 * Set default state for ALTPHYS flag (used to disable the
1751 * tranceiver for AUI operation), based on compile-time
1754 if (device_get_flags(dev) & ED_FLAGS_DISABLE_TRANCEIVER)
1755 ifp->if_flags |= IFF_ALTPHYS;
1758 * Attach the interface
1760 ether_ifattach(ifp, sc->arpcom.ac_enaddr);
1762 /* device attach does transition from UNCONFIGURED to IDLE state */
1765 * Print additional info when attached
1767 if_printf(ifp, "address %6D, ", sc->arpcom.ac_enaddr, ":");
1769 if (sc->type_str && (*sc->type_str != 0))
1770 printf("type %s ", sc->type_str);
1772 printf("type unknown (0x%x) ", sc->type);
1774 if (sc->vendor == ED_VENDOR_HP)
1775 printf("(%s %s IO)", (sc->hpp_id & ED_HPP_ID_16_BIT_ACCESS) ?
1776 "16-bit" : "32-bit",
1777 sc->hpp_mem_start ? "memory mapped" : "regular");
1779 printf("%s ", sc->isa16bit ? "(16 bit)" : "(8 bit)");
1781 printf("%s\n", (((sc->vendor == ED_VENDOR_3COM) ||
1782 (sc->vendor == ED_VENDOR_HP)) &&
1783 (ifp->if_flags & IFF_ALTPHYS)) ? " tranceiver disabled" : "");
1795 struct ed_softc *sc = ifp->if_softc;
1803 * Stop interface and re-initialize.
1812 * Take interface offline.
1816 struct ed_softc *sc;
1820 #ifndef ED_NO_MIIBUS
1821 untimeout(ed_tick, sc, sc->tick_ch);
1822 callout_handle_init(&sc->tick_ch);
1827 * Stop everything on the interface, and select page 0 registers.
1829 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP);
1832 * Wait for interface to enter stopped state, but limit # of checks to
1833 * 'n' (about 5ms). It shouldn't even take 5us on modern DS8390's, but
1834 * just in case it's an old one.
1836 if (sc->chip_type != ED_CHIP_TYPE_AX88190)
1837 while (((ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RST) == 0) && --n);
1841 * Device timeout/watchdog routine. Entered if the device neglects to
1842 * generate an interrupt after a transmit has been started on it.
1848 struct ed_softc *sc = ifp->if_softc;
1852 log(LOG_ERR, "%s: device timeout\n", ifp->if_xname);
1858 #ifndef ED_NO_MIIBUS
1863 struct ed_softc *sc = arg;
1864 struct mii_data *mii;
1868 callout_handle_init(&sc->tick_ch);
1872 if (sc->miibus != NULL) {
1873 mii = device_get_softc(sc->miibus);
1876 sc->tick_ch = timeout(ed_tick, sc, hz);
1882 * Initialize device.
1888 struct ed_softc *sc = xsc;
1889 struct ifnet *ifp = &sc->arpcom.ac_if;
1895 /* address not known */
1896 if (TAILQ_EMPTY(&ifp->if_addrhead)) /* unlikely? XXX */
1900 * Initialize the NIC in the exact order outlined in the NS manual.
1901 * This init procedure is "mandatory"...don't change what or when
1906 /* reset transmitter flags */
1912 sc->txb_next_tx = 0;
1914 /* This variable is used below - don't move this assignment */
1915 sc->next_packet = sc->rec_page_start + 1;
1918 * Set interface for page 0, Remote DMA complete, Stopped
1920 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP);
1925 * Set FIFO threshold to 8, No auto-init Remote DMA, byte
1926 * order=80x86, word-wide DMA xfers,
1928 ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_WTS | ED_DCR_LS);
1932 * Same as above, but byte-wide DMA xfers
1934 ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_LS);
1938 * Clear Remote Byte Count Registers
1940 ed_nic_outb(sc, ED_P0_RBCR0, 0);
1941 ed_nic_outb(sc, ED_P0_RBCR1, 0);
1944 * For the moment, don't store incoming packets in memory.
1946 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_MON);
1949 * Place NIC in internal loopback mode
1951 ed_nic_outb(sc, ED_P0_TCR, ED_TCR_LB0);
1954 * Initialize transmit/receive (ring-buffer) Page Start
1956 ed_nic_outb(sc, ED_P0_TPSR, sc->tx_page_start);
1957 ed_nic_outb(sc, ED_P0_PSTART, sc->rec_page_start);
1958 /* Set lower bits of byte addressable framing to 0 */
1959 if (sc->chip_type == ED_CHIP_TYPE_WD790)
1960 ed_nic_outb(sc, 0x09, 0);
1963 * Initialize Receiver (ring-buffer) Page Stop and Boundry
1965 ed_nic_outb(sc, ED_P0_PSTOP, sc->rec_page_stop);
1966 ed_nic_outb(sc, ED_P0_BNRY, sc->rec_page_start);
1969 * Clear all interrupts. A '1' in each bit position clears the
1970 * corresponding flag.
1972 ed_nic_outb(sc, ED_P0_ISR, 0xff);
1975 * Enable the following interrupts: receive/transmit complete,
1976 * receive/transmit error, and Receiver OverWrite.
1978 * Counter overflow and Remote DMA complete are *not* enabled.
1980 ed_nic_outb(sc, ED_P0_IMR,
1981 ED_IMR_PRXE | ED_IMR_PTXE | ED_IMR_RXEE | ED_IMR_TXEE | ED_IMR_OVWE);
1984 * Program Command Register for page 1
1986 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_PAGE_1 | ED_CR_STP);
1989 * Copy out our station address
1991 for (i = 0; i < ETHER_ADDR_LEN; ++i)
1992 ed_nic_outb(sc, ED_P1_PAR(i), sc->arpcom.ac_enaddr[i]);
1995 * Set Current Page pointer to next_packet (initialized above)
1997 ed_nic_outb(sc, ED_P1_CURR, sc->next_packet);
2000 * Program Receiver Configuration Register and multicast filter. CR is
2001 * set to page 0 on return.
2006 * Take interface out of loopback
2008 ed_nic_outb(sc, ED_P0_TCR, 0);
2011 * If this is a 3Com board, the tranceiver must be software enabled
2012 * (there is no settable hardware default).
2014 if (sc->vendor == ED_VENDOR_3COM) {
2015 if (ifp->if_flags & IFF_ALTPHYS) {
2016 ed_asic_outb(sc, ED_3COM_CR, 0);
2018 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL);
2022 #ifndef ED_NO_MIIBUS
2023 if (sc->miibus != NULL) {
2024 struct mii_data *mii;
2025 mii = device_get_softc(sc->miibus);
2030 * Set 'running' flag, and clear output active flag.
2032 ifp->if_flags |= IFF_RUNNING;
2033 ifp->if_flags &= ~IFF_OACTIVE;
2036 * ...and attempt to start output
2040 #ifndef ED_NO_MIIBUS
2041 untimeout(ed_tick, sc, sc->tick_ch);
2042 sc->tick_ch = timeout(ed_tick, sc, hz);
2048 * This routine actually starts the transmission on the interface
2050 static __inline void
2052 struct ed_softc *sc;
2054 struct ifnet *ifp = (struct ifnet *)sc;
2059 len = sc->txb_len[sc->txb_next_tx];
2062 * Set NIC for page 0 register access
2064 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA);
2067 * Set TX buffer start page
2069 ed_nic_outb(sc, ED_P0_TPSR, sc->tx_page_start +
2070 sc->txb_next_tx * ED_TXBUF_SIZE);
2075 ed_nic_outb(sc, ED_P0_TBCR0, len);
2076 ed_nic_outb(sc, ED_P0_TBCR1, len >> 8);
2079 * Set page 0, Remote DMA complete, Transmit Packet, and *Start*
2081 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_TXP | ED_CR_STA);
2085 * Point to next transmit buffer slot and wrap if necessary.
2088 if (sc->txb_next_tx == sc->txb_cnt)
2089 sc->txb_next_tx = 0;
2092 * Set a timer just in case we never hear from the board again
2098 * Start output on interface.
2099 * We make two assumptions here:
2100 * 1) that the current priority is set to splimp _before_ this code
2101 * is called *and* is returned to the appropriate priority after
2103 * 2) that the IFF_OACTIVE flag is checked before this code is called
2104 * (i.e. that the output part of the interface is idle)
2110 struct ed_softc *sc = ifp->if_softc;
2111 struct mbuf *m0, *m;
2116 printf("ed_start(%p) GONE\n",ifp);
2122 * First, see if there are buffered packets and an idle transmitter -
2123 * should never happen at this point.
2125 if (sc->txb_inuse && (sc->xmit_busy == 0)) {
2126 printf("ed: packets buffered, but transmitter idle\n");
2131 * See if there is room to put another packet in the buffer.
2133 if (sc->txb_inuse == sc->txb_cnt) {
2136 * No room. Indicate this to the outside world and exit.
2138 ifp->if_flags |= IFF_OACTIVE;
2141 IF_DEQUEUE(&ifp->if_snd, m);
2145 * We are using the !OACTIVE flag to indicate to the outside
2146 * world that we can accept an additional packet rather than
2147 * that the transmitter is _actually_ active. Indeed, the
2148 * transmitter may be active, but if we haven't filled all the
2149 * buffers with data then we still want to accept more.
2151 ifp->if_flags &= ~IFF_OACTIVE;
2156 * Copy the mbuf chain into the transmit buffer
2161 /* txb_new points to next open buffer slot */
2162 buffer = sc->mem_start + (sc->txb_new * ED_TXBUF_SIZE * ED_PAGE_SIZE);
2164 if (sc->mem_shared) {
2167 * Special case setup for 16 bit boards...
2170 switch (sc->vendor) {
2173 * For 16bit 3Com boards (which have 16k of
2174 * memory), we have the xmit buffers in a
2175 * different page of memory ('page 0') - so
2178 case ED_VENDOR_3COM:
2179 ed_asic_outb(sc, ED_3COM_GACFR,
2180 ED_3COM_GACFR_RSEL);
2184 * Enable 16bit access to shared memory on
2187 case ED_VENDOR_WD_SMC:
2188 ed_asic_outb(sc, ED_WD_LAAR,
2189 sc->wd_laar_proto | ED_WD_LAAR_M16EN);
2190 if (sc->chip_type == ED_CHIP_TYPE_WD790) {
2191 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_MENB);
2196 for (len = 0; m != 0; m = m->m_next) {
2197 bcopy(mtod(m, caddr_t), buffer, m->m_len);
2203 * Restore previous shared memory access
2206 switch (sc->vendor) {
2207 case ED_VENDOR_3COM:
2208 ed_asic_outb(sc, ED_3COM_GACFR,
2209 ED_3COM_GACFR_RSEL | ED_3COM_GACFR_MBS0);
2211 case ED_VENDOR_WD_SMC:
2212 if (sc->chip_type == ED_CHIP_TYPE_WD790) {
2213 ed_asic_outb(sc, ED_WD_MSR, 0x00);
2215 ed_asic_outb(sc, ED_WD_LAAR,
2216 sc->wd_laar_proto & ~ED_WD_LAAR_M16EN);
2221 len = ed_pio_write_mbufs(sc, m, (int)buffer);
2228 sc->txb_len[sc->txb_new] = max(len, (ETHER_MIN_LEN-ETHER_CRC_LEN));
2233 * Point to next buffer slot and wrap if necessary.
2236 if (sc->txb_new == sc->txb_cnt)
2239 if (sc->xmit_busy == 0)
2243 * Tap off here if there is a bpf listener.
2252 * Loop back to the top to possibly buffer more packets
2258 * Ethernet interface receiver interrupt.
2260 static __inline void
2262 struct ed_softc *sc;
2264 struct ifnet *ifp = &sc->arpcom.ac_if;
2267 struct ed_ring packet_hdr;
2274 * Set NIC to page 1 registers to get 'current' pointer
2276 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_PAGE_1 | ED_CR_STA);
2279 * 'sc->next_packet' is the logical beginning of the ring-buffer -
2280 * i.e. it points to where new data has been buffered. The 'CURR'
2281 * (current) register points to the logical end of the ring-buffer -
2282 * i.e. it points to where additional new data will be added. We loop
2283 * here until the logical beginning equals the logical end (or in
2284 * other words, until the ring-buffer is empty).
2286 while (sc->next_packet != ed_nic_inb(sc, ED_P1_CURR)) {
2288 /* get pointer to this buffer's header structure */
2289 packet_ptr = sc->mem_ring +
2290 (sc->next_packet - sc->rec_page_start) * ED_PAGE_SIZE;
2293 * The byte count includes a 4 byte header that was added by
2297 packet_hdr = *(struct ed_ring *) packet_ptr;
2299 ed_pio_readmem(sc, (int)packet_ptr, (char *) &packet_hdr,
2300 sizeof(packet_hdr));
2301 len = packet_hdr.count;
2302 if (len > (ETHER_MAX_LEN - ETHER_CRC_LEN + sizeof(struct ed_ring)) ||
2303 len < (ETHER_MIN_LEN - ETHER_CRC_LEN + sizeof(struct ed_ring))) {
2305 * Length is a wild value. There's a good chance that
2306 * this was caused by the NIC being old and buggy.
2307 * The bug is that the length low byte is duplicated in
2308 * the high byte. Try to recalculate the length based on
2309 * the pointer to the next packet.
2312 * NOTE: sc->next_packet is pointing at the current packet.
2314 len &= ED_PAGE_SIZE - 1; /* preserve offset into page */
2315 if (packet_hdr.next_packet >= sc->next_packet) {
2316 len += (packet_hdr.next_packet - sc->next_packet) * ED_PAGE_SIZE;
2318 len += ((packet_hdr.next_packet - sc->rec_page_start) +
2319 (sc->rec_page_stop - sc->next_packet)) * ED_PAGE_SIZE;
2322 * because buffers are aligned on 256-byte boundary,
2323 * the length computed above is off by 256 in almost
2324 * all cases. Fix it...
2328 if (len > (ETHER_MAX_LEN - ETHER_CRC_LEN
2329 + sizeof(struct ed_ring)))
2330 sc->mibdata.dot3StatsFrameTooLongs++;
2333 * Be fairly liberal about what we allow as a "reasonable" length
2334 * so that a [crufty] packet will make it to BPF (and can thus
2335 * be analyzed). Note that all that is really important is that
2336 * we have a length that will fit into one mbuf cluster or less;
2337 * the upper layer protocols can then figure out the length from
2338 * their own length field(s).
2339 * But make sure that we have at least a full ethernet header
2340 * or we would be unable to call ether_input() later.
2342 if ((len >= sizeof(struct ed_ring) + ETHER_HDR_LEN) &&
2343 (len <= MCLBYTES) &&
2344 (packet_hdr.next_packet >= sc->rec_page_start) &&
2345 (packet_hdr.next_packet < sc->rec_page_stop)) {
2349 ed_get_packet(sc, packet_ptr + sizeof(struct ed_ring),
2350 len - sizeof(struct ed_ring));
2354 * Really BAD. The ring pointers are corrupted.
2357 "%s: NIC memory corrupt - invalid packet length %d\n",
2358 ifp->if_xname, len);
2365 * Update next packet pointer
2367 sc->next_packet = packet_hdr.next_packet;
2370 * Update NIC boundry pointer - being careful to keep it one
2371 * buffer behind. (as recommended by NS databook)
2373 boundry = sc->next_packet - 1;
2374 if (boundry < sc->rec_page_start)
2375 boundry = sc->rec_page_stop - 1;
2378 * Set NIC to page 0 registers to update boundry register
2380 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA);
2382 ed_nic_outb(sc, ED_P0_BNRY, boundry);
2385 * Set NIC to page 1 registers before looping to top (prepare
2386 * to get 'CURR' current pointer)
2388 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_PAGE_1 | ED_CR_STA);
2393 * Ethernet interface interrupt processor
2399 struct ed_softc *sc = (struct ed_softc*) arg;
2400 struct ifnet *ifp = (struct ifnet *)sc;
2407 * Set NIC to page 0 registers
2409 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA);
2412 * loop until there are no more new interrupts. When the card
2413 * goes away, the hardware will read back 0xff. Looking at
2414 * the interrupts, it would appear that 0xff is impossible,
2415 * or at least extremely unlikely.
2417 while ((isr = ed_nic_inb(sc, ED_P0_ISR)) != 0 && isr != 0xff) {
2420 * reset all the bits that we are 'acknowledging' by writing a
2421 * '1' to each bit position that was set (writing a '1'
2424 ed_nic_outb(sc, ED_P0_ISR, isr);
2427 * XXX workaround for AX88190
2428 * We limit this to 5000 iterations. At 1us per inb/outb,
2429 * this translates to about 15ms, which should be plenty
2430 * of time, and also gives protection in the card eject
2433 if (sc->chip_type == ED_CHIP_TYPE_AX88190) {
2434 count = 5000; /* 15ms */
2435 while (count-- && (ed_nic_inb(sc, ED_P0_ISR) & isr)) {
2436 ed_nic_outb(sc, ED_P0_ISR,0);
2437 ed_nic_outb(sc, ED_P0_ISR,isr);
2444 * Handle transmitter interrupts. Handle these first because
2445 * the receiver will reset the board under some conditions.
2447 if (isr & (ED_ISR_PTX | ED_ISR_TXE)) {
2448 u_char collisions = ed_nic_inb(sc, ED_P0_NCR) & 0x0f;
2451 * Check for transmit error. If a TX completed with an
2452 * error, we end up throwing the packet away. Really
2453 * the only error that is possible is excessive
2454 * collisions, and in this case it is best to allow
2455 * the automatic mechanisms of TCP to backoff the
2456 * flow. Of course, with UDP we're screwed, but this
2457 * is expected when a network is heavily loaded.
2459 (void) ed_nic_inb(sc, ED_P0_TSR);
2460 if (isr & ED_ISR_TXE) {
2464 * Excessive collisions (16)
2466 tsr = ed_nic_inb(sc, ED_P0_TSR);
2467 if ((tsr & ED_TSR_ABT)
2468 && (collisions == 0)) {
2471 * When collisions total 16, the
2472 * P0_NCR will indicate 0, and the
2476 sc->mibdata.dot3StatsExcessiveCollisions++;
2477 sc->mibdata.dot3StatsCollFrequencies[15]++;
2479 if (tsr & ED_TSR_OWC)
2480 sc->mibdata.dot3StatsLateCollisions++;
2481 if (tsr & ED_TSR_CDH)
2482 sc->mibdata.dot3StatsSQETestErrors++;
2483 if (tsr & ED_TSR_CRS)
2484 sc->mibdata.dot3StatsCarrierSenseErrors++;
2485 if (tsr & ED_TSR_FU)
2486 sc->mibdata.dot3StatsInternalMacTransmitErrors++;
2489 * update output errors counter
2495 * Update total number of successfully
2496 * transmitted packets.
2502 * reset tx busy and output active flags
2505 ifp->if_flags &= ~IFF_OACTIVE;
2508 * clear watchdog timer
2513 * Add in total number of collisions on last
2516 ifp->if_collisions += collisions;
2517 switch(collisions) {
2522 sc->mibdata.dot3StatsSingleCollisionFrames++;
2523 sc->mibdata.dot3StatsCollFrequencies[0]++;
2526 sc->mibdata.dot3StatsMultipleCollisionFrames++;
2528 dot3StatsCollFrequencies[collisions-1]
2534 * Decrement buffer in-use count if not zero (can only
2535 * be zero if a transmitter interrupt occured while
2536 * not actually transmitting). If data is ready to
2537 * transmit, start it transmitting, otherwise defer
2538 * until after handling receiver
2540 if (sc->txb_inuse && --sc->txb_inuse)
2545 * Handle receiver interrupts
2547 if (isr & (ED_ISR_PRX | ED_ISR_RXE | ED_ISR_OVW)) {
2550 * Overwrite warning. In order to make sure that a
2551 * lockup of the local DMA hasn't occurred, we reset
2552 * and re-init the NIC. The NSC manual suggests only a
2553 * partial reset/re-init is necessary - but some chips
2554 * seem to want more. The DMA lockup has been seen
2555 * only with early rev chips - Methinks this bug was
2556 * fixed in later revs. -DG
2558 if (isr & ED_ISR_OVW) {
2562 "%s: warning - receiver ring buffer overrun\n",
2567 * Stop/reset/re-init NIC
2573 * Receiver Error. One or more of: CRC error,
2574 * frame alignment error FIFO overrun, or
2577 if (isr & ED_ISR_RXE) {
2579 rsr = ed_nic_inb(sc, ED_P0_RSR);
2580 if (rsr & ED_RSR_CRC)
2581 sc->mibdata.dot3StatsFCSErrors++;
2582 if (rsr & ED_RSR_FAE)
2583 sc->mibdata.dot3StatsAlignmentErrors++;
2584 if (rsr & ED_RSR_FO)
2585 sc->mibdata.dot3StatsInternalMacReceiveErrors++;
2588 if_printf("receive error %x\n",
2589 ed_nic_inb(sc, ED_P0_RSR));
2594 * Go get the packet(s) XXX - Doing this on an
2595 * error is dubious because there shouldn't be
2596 * any data to get (we've configured the
2597 * interface to not accept packets with
2602 * Enable 16bit access to shared memory first
2606 (sc->vendor == ED_VENDOR_WD_SMC)) {
2608 ed_asic_outb(sc, ED_WD_LAAR,
2609 sc->wd_laar_proto | ED_WD_LAAR_M16EN);
2610 if (sc->chip_type == ED_CHIP_TYPE_WD790) {
2611 ed_asic_outb(sc, ED_WD_MSR,
2617 /* disable 16bit access */
2619 (sc->vendor == ED_VENDOR_WD_SMC)) {
2621 if (sc->chip_type == ED_CHIP_TYPE_WD790) {
2622 ed_asic_outb(sc, ED_WD_MSR, 0x00);
2624 ed_asic_outb(sc, ED_WD_LAAR,
2625 sc->wd_laar_proto & ~ED_WD_LAAR_M16EN);
2631 * If it looks like the transmitter can take more data,
2632 * attempt to start output on the interface. This is done
2633 * after handling the receiver to give the receiver priority.
2635 if ((ifp->if_flags & IFF_OACTIVE) == 0)
2639 * return NIC CR to standard state: page 0, remote DMA
2640 * complete, start (toggling the TXP bit off, even if was just
2641 * set in the transmit routine, is *okay* - it is 'edge'
2642 * triggered from low to high)
2644 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA);
2647 * If the Network Talley Counters overflow, read them to reset
2648 * them. It appears that old 8390's won't clear the ISR flag
2649 * otherwise - resulting in an infinite loop.
2651 if (isr & ED_ISR_CNT) {
2652 (void) ed_nic_inb(sc, ED_P0_CNTR0);
2653 (void) ed_nic_inb(sc, ED_P0_CNTR1);
2654 (void) ed_nic_inb(sc, ED_P0_CNTR2);
2660 * Process an ioctl request. This code needs some work - it looks
2664 ed_ioctl(ifp, command, data)
2669 struct ed_softc *sc = ifp->if_softc;
2670 #ifndef ED_NO_MIIBUS
2671 struct ifreq *ifr = (struct ifreq *)data;
2672 struct mii_data *mii;
2676 if (sc == NULL || sc->gone) {
2677 ifp->if_flags &= ~IFF_RUNNING;
2687 error = ether_ioctl(ifp, command, data);
2693 * If the interface is marked up and stopped, then start it.
2694 * If it is marked down and running, then stop it.
2696 if (ifp->if_flags & IFF_UP) {
2697 if ((ifp->if_flags & IFF_RUNNING) == 0)
2700 if (ifp->if_flags & IFF_RUNNING) {
2702 ifp->if_flags &= ~IFF_RUNNING;
2707 * Promiscuous flag may have changed, so reprogram the RCR.
2712 * An unfortunate hack to provide the (required) software
2713 * control of the tranceiver for 3Com boards. The ALTPHYS flag
2714 * disables the tranceiver if set.
2716 if (sc->vendor == ED_VENDOR_3COM) {
2717 if (ifp->if_flags & IFF_ALTPHYS) {
2718 ed_asic_outb(sc, ED_3COM_CR, 0);
2720 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL);
2722 } else if (sc->vendor == ED_VENDOR_HP)
2723 ed_hpp_set_physical_link(sc);
2729 * Multicast list has changed; set the hardware filter
2736 #ifndef ED_NO_MIIBUS
2739 if (sc->miibus == NULL) {
2743 mii = device_get_softc(sc->miibus);
2744 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
2756 * Given a source and destination address, copy 'amount' of a packet from
2757 * the ring buffer into a linear destination buffer. Takes into account
2760 static __inline char *
2761 ed_ring_copy(sc, src, dst, amount)
2762 struct ed_softc *sc;
2769 /* does copy wrap to lower addr in ring buffer? */
2770 if (src + amount > sc->mem_end) {
2771 tmp_amount = sc->mem_end - src;
2773 /* copy amount up to end of NIC memory */
2775 bcopy(src, dst, tmp_amount);
2777 ed_pio_readmem(sc, (int)src, dst, tmp_amount);
2779 amount -= tmp_amount;
2784 bcopy(src, dst, amount);
2786 ed_pio_readmem(sc, (int)src, dst, amount);
2788 return (src + amount);
2792 * Retreive packet from shared memory and send to the next level up via
2796 ed_get_packet(sc, buf, len)
2797 struct ed_softc *sc;
2801 struct ifnet *ifp = &sc->arpcom.ac_if;
2802 struct ether_header *eh;
2805 /* Allocate a header mbuf */
2806 MGETHDR(m, M_DONTWAIT, MT_DATA);
2809 m->m_pkthdr.rcvif = ifp;
2810 m->m_pkthdr.len = m->m_len = len;
2813 * We always put the received packet in a single buffer -
2814 * either with just an mbuf header or in a cluster attached
2815 * to the header. The +2 is to compensate for the alignment
2818 if ((len + 2) > MHLEN) {
2819 /* Attach an mbuf cluster */
2820 MCLGET(m, M_DONTWAIT);
2822 /* Insist on getting a cluster */
2823 if ((m->m_flags & M_EXT) == 0) {
2830 * The +2 is to longword align the start of the real packet.
2831 * This is important for NFS.
2834 eh = mtod(m, struct ether_header *);
2837 * Don't read in the entire packet if we know we're going to drop it
2838 * and no bpf is active.
2840 if (!ifp->if_bpf && BDG_ACTIVE( (ifp) ) ) {
2843 ed_ring_copy(sc, buf, (char *)eh, ETHER_HDR_LEN);
2844 bif = bridge_in_ptr(ifp, eh) ;
2845 if (bif == BDG_DROP) {
2849 if (len > ETHER_HDR_LEN)
2850 ed_ring_copy(sc, buf + ETHER_HDR_LEN,
2851 (char *)(eh + 1), len - ETHER_HDR_LEN);
2854 * Get packet, including link layer address, from interface.
2856 ed_ring_copy(sc, buf, (char *)eh, len);
2859 * Remove link layer address.
2861 m->m_pkthdr.len = m->m_len = len - sizeof(struct ether_header);
2862 m->m_data += sizeof(struct ether_header);
2864 ether_input(ifp, eh, m);
2868 * Supporting routines
2872 * Given a NIC memory source address and a host memory destination
2873 * address, copy 'amount' from NIC to host using Programmed I/O.
2874 * The 'amount' is rounded up to a word - okay as long as mbufs
2876 * This routine is currently Novell-specific.
2879 ed_pio_readmem(sc, src, dst, amount)
2880 struct ed_softc *sc;
2883 unsigned short amount;
2885 /* HP PC Lan+ cards need special handling */
2886 if (sc->vendor == ED_VENDOR_HP && sc->type == ED_TYPE_HP_PCLANPLUS) {
2887 ed_hpp_readmem(sc, src, dst, amount);
2891 /* Regular Novell cards */
2892 /* select page 0 registers */
2893 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STA);
2895 /* round up to a word */
2899 /* set up DMA byte count */
2900 ed_nic_outb(sc, ED_P0_RBCR0, amount);
2901 ed_nic_outb(sc, ED_P0_RBCR1, amount >> 8);
2903 /* set up source address in NIC mem */
2904 ed_nic_outb(sc, ED_P0_RSAR0, src);
2905 ed_nic_outb(sc, ED_P0_RSAR1, src >> 8);
2907 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD0 | ED_CR_STA);
2910 ed_asic_insw(sc, ED_NOVELL_DATA, dst, amount / 2);
2912 ed_asic_insb(sc, ED_NOVELL_DATA, dst, amount);
2917 * Stripped down routine for writing a linear buffer to NIC memory.
2918 * Only used in the probe routine to test the memory. 'len' must
2922 ed_pio_writemem(sc, src, dst, len)
2923 struct ed_softc *sc;
2928 int maxwait = 200; /* about 240us */
2930 /* select page 0 registers */
2931 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STA);
2933 /* reset remote DMA complete flag */
2934 ed_nic_outb(sc, ED_P0_ISR, ED_ISR_RDC);
2936 /* set up DMA byte count */
2937 ed_nic_outb(sc, ED_P0_RBCR0, len);
2938 ed_nic_outb(sc, ED_P0_RBCR1, len >> 8);
2940 /* set up destination address in NIC mem */
2941 ed_nic_outb(sc, ED_P0_RSAR0, dst);
2942 ed_nic_outb(sc, ED_P0_RSAR1, dst >> 8);
2944 /* set remote DMA write */
2945 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD1 | ED_CR_STA);
2948 ed_asic_outsw(sc, ED_NOVELL_DATA, src, len / 2);
2950 ed_asic_outsb(sc, ED_NOVELL_DATA, src, len);
2954 * Wait for remote DMA complete. This is necessary because on the
2955 * transmit side, data is handled internally by the NIC in bursts and
2956 * we can't start another remote DMA until this one completes. Not
2957 * waiting causes really bad things to happen - like the NIC
2958 * irrecoverably jamming the ISA bus.
2960 while (((ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RDC) != ED_ISR_RDC) && --maxwait);
2964 * Write an mbuf chain to the destination NIC memory address using
2968 ed_pio_write_mbufs(sc, m, dst)
2969 struct ed_softc *sc;
2973 struct ifnet *ifp = (struct ifnet *)sc;
2974 unsigned short total_len, dma_len;
2976 int maxwait = 200; /* about 240us */
2978 /* HP PC Lan+ cards need special handling */
2979 if (sc->vendor == ED_VENDOR_HP && sc->type == ED_TYPE_HP_PCLANPLUS) {
2980 return ed_hpp_write_mbufs(sc, m, dst);
2983 /* Regular Novell cards */
2984 /* First, count up the total number of bytes to copy */
2985 for (total_len = 0, mp = m; mp; mp = mp->m_next)
2986 total_len += mp->m_len;
2988 dma_len = total_len;
2989 if (sc->isa16bit && (dma_len & 1))
2992 /* select page 0 registers */
2993 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STA);
2995 /* reset remote DMA complete flag */
2996 ed_nic_outb(sc, ED_P0_ISR, ED_ISR_RDC);
2998 /* set up DMA byte count */
2999 ed_nic_outb(sc, ED_P0_RBCR0, dma_len);
3000 ed_nic_outb(sc, ED_P0_RBCR1, dma_len >> 8);
3002 /* set up destination address in NIC mem */
3003 ed_nic_outb(sc, ED_P0_RSAR0, dst);
3004 ed_nic_outb(sc, ED_P0_RSAR1, dst >> 8);
3006 /* set remote DMA write */
3007 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD1 | ED_CR_STA);
3010 * Transfer the mbuf chain to the NIC memory.
3011 * 16-bit cards require that data be transferred as words, and only words.
3012 * So that case requires some extra code to patch over odd-length mbufs.
3015 if (!sc->isa16bit) {
3016 /* NE1000s are easy */
3019 ed_asic_outsb(sc, ED_NOVELL_DATA,
3020 m->m_data, m->m_len);
3025 /* NE2000s are a pain */
3026 unsigned char *data;
3028 unsigned char savebyte[2];
3035 data = mtod(m, caddr_t);
3036 /* finish the last word */
3038 savebyte[1] = *data;
3039 ed_asic_outw(sc, ED_NOVELL_DATA,
3040 *(u_short *)savebyte);
3045 /* output contiguous words */
3047 ed_asic_outsw(sc, ED_NOVELL_DATA,
3052 /* save last byte, if necessary */
3054 savebyte[0] = *data;
3060 /* spit last byte */
3062 ed_asic_outw(sc, ED_NOVELL_DATA, *(u_short *)savebyte);
3067 * Wait for remote DMA complete. This is necessary because on the
3068 * transmit side, data is handled internally by the NIC in bursts and
3069 * we can't start another remote DMA until this one completes. Not
3070 * waiting causes really bad things to happen - like the NIC
3071 * irrecoverably jamming the ISA bus.
3073 while (((ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RDC) != ED_ISR_RDC) && --maxwait);
3076 log(LOG_WARNING, "%s: remote transmit DMA failed to complete\n",
3085 * Support routines to handle the HP PC Lan+ card.
3089 * HP PC Lan+: Read from NIC memory, using either PIO or memory mapped
3094 ed_hpp_readmem(sc, src, dst, amount)
3095 struct ed_softc *sc;
3098 unsigned short amount;
3101 int use_32bit_access = !(sc->hpp_id & ED_HPP_ID_16_BIT_ACCESS);
3104 /* Program the source address in RAM */
3105 ed_asic_outw(sc, ED_HPP_PAGE_2, src);
3108 * The HP PC Lan+ card supports word reads as well as
3109 * a memory mapped i/o port that is aliased to every
3110 * even address on the board.
3113 if (sc->hpp_mem_start) {
3115 /* Enable memory mapped access. */
3116 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options &
3117 ~(ED_HPP_OPTION_MEM_DISABLE |
3118 ED_HPP_OPTION_BOOT_ROM_ENB));
3120 if (use_32bit_access && (amount > 3)) {
3121 u_int32_t *dl = (u_int32_t *) dst;
3122 volatile u_int32_t *const sl =
3123 (u_int32_t *) sc->hpp_mem_start;
3124 u_int32_t *const fence = dl + (amount >> 2);
3126 /* Copy out NIC data. We could probably write this
3127 as a `movsl'. The currently generated code is lousy.
3133 dst += (amount & ~3);
3138 /* Finish off any words left, as a series of short reads */
3140 u_short *d = (u_short *) dst;
3141 volatile u_short *const s =
3142 (u_short *) sc->hpp_mem_start;
3143 u_short *const fence = d + (amount >> 1);
3145 /* Copy out NIC data. */
3150 dst += (amount & ~1);
3155 * read in a byte; however we need to always read 16 bits
3156 * at a time or the hardware gets into a funny state
3160 /* need to read in a short and copy LSB */
3161 volatile u_short *const s =
3162 (volatile u_short *) sc->hpp_mem_start;
3167 /* Restore Boot ROM access. */
3169 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options);
3173 /* Read in data using the I/O port */
3174 if (use_32bit_access && (amount > 3)) {
3175 ed_asic_insl(sc, ED_HPP_PAGE_4, dst, amount >> 2);
3176 dst += (amount & ~3);
3180 ed_asic_insw(sc, ED_HPP_PAGE_4, dst, amount >> 1);
3181 dst += (amount & ~1);
3184 if (amount == 1) { /* read in a short and keep the LSB */
3185 *dst = ed_asic_inw(sc, ED_HPP_PAGE_4) & 0xFF;
3191 * HP PC Lan+: Write to NIC memory, using either PIO or memory mapped
3193 * Only used in the probe routine to test the memory. 'len' must
3197 ed_hpp_writemem(sc, src, dst, len)
3198 struct ed_softc *sc;
3203 /* reset remote DMA complete flag */
3204 ed_nic_outb(sc, ED_P0_ISR, ED_ISR_RDC);
3206 /* program the write address in RAM */
3207 ed_asic_outw(sc, ED_HPP_PAGE_0, dst);
3209 if (sc->hpp_mem_start) {
3210 u_short *s = (u_short *) src;
3211 volatile u_short *d = (u_short *) sc->hpp_mem_start;
3212 u_short *const fence = s + (len >> 1);
3215 * Enable memory mapped access.
3218 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options &
3219 ~(ED_HPP_OPTION_MEM_DISABLE |
3220 ED_HPP_OPTION_BOOT_ROM_ENB));
3223 * Copy to NIC memory.
3230 * Restore Boot ROM access.
3233 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options);
3236 /* write data using I/O writes */
3237 ed_asic_outsw(sc, ED_HPP_PAGE_4, src, len / 2);
3242 * Write to HP PC Lan+ NIC memory. Access to the NIC can be by using
3243 * outsw() or via the memory mapped interface to the same register.
3244 * Writes have to be in word units; byte accesses won't work and may cause
3245 * the NIC to behave weirdly. Long word accesses are permitted if the ASIC
3250 ed_hpp_write_mbufs(struct ed_softc *sc, struct mbuf *m, int dst)
3253 unsigned short total_len;
3254 unsigned char savebyte[2];
3255 volatile u_short * const d =
3256 (volatile u_short *) sc->hpp_mem_start;
3257 int use_32bit_accesses = !(sc->hpp_id & ED_HPP_ID_16_BIT_ACCESS);
3259 /* select page 0 registers */
3260 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA);
3262 /* reset remote DMA complete flag */
3263 ed_nic_outb(sc, ED_P0_ISR, ED_ISR_RDC);
3265 /* program the write address in RAM */
3266 ed_asic_outw(sc, ED_HPP_PAGE_0, dst);
3268 if (sc->hpp_mem_start) /* enable memory mapped I/O */
3269 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options &
3270 ~(ED_HPP_OPTION_MEM_DISABLE |
3271 ED_HPP_OPTION_BOOT_ROM_ENB));
3276 if (sc->hpp_mem_start) { /* Memory mapped I/O port */
3278 total_len += (len = m->m_len);
3280 caddr_t data = mtod(m, caddr_t);
3281 /* finish the last word of the previous mbuf */
3283 savebyte[1] = *data;
3284 *d = *((u_short *) savebyte);
3285 data++; len--; wantbyte = 0;
3287 /* output contiguous words */
3288 if ((len > 3) && (use_32bit_accesses)) {
3289 volatile u_int32_t *const dl =
3290 (volatile u_int32_t *) d;
3291 u_int32_t *sl = (u_int32_t *) data;
3292 u_int32_t *fence = sl + (len >> 2);
3300 /* finish off remain 16 bit writes */
3302 u_short *s = (u_short *) data;
3303 u_short *fence = s + (len >> 1);
3311 /* save last byte if needed */
3312 if ((wantbyte = (len == 1)) != 0)
3313 savebyte[0] = *data;
3315 m = m->m_next; /* to next mbuf */
3317 if (wantbyte) /* write last byte */
3318 *d = *((u_short *) savebyte);
3320 /* use programmed I/O */
3322 total_len += (len = m->m_len);
3324 caddr_t data = mtod(m, caddr_t);
3325 /* finish the last word of the previous mbuf */
3327 savebyte[1] = *data;
3328 ed_asic_outw(sc, ED_HPP_PAGE_4,
3329 *((u_short *)savebyte));
3334 /* output contiguous words */
3335 if ((len > 3) && use_32bit_accesses) {
3336 ed_asic_outsl(sc, ED_HPP_PAGE_4,
3341 /* finish off remaining 16 bit accesses */
3343 ed_asic_outsw(sc, ED_HPP_PAGE_4,
3348 if ((wantbyte = (len == 1)) != 0)
3349 savebyte[0] = *data;
3354 if (wantbyte) /* spit last byte */
3355 ed_asic_outw(sc, ED_HPP_PAGE_4, *(u_short *)savebyte);
3359 if (sc->hpp_mem_start) /* turn off memory mapped i/o */
3360 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options);
3365 #ifndef ED_NO_MIIBUS
3367 * MII bus support routines.
3370 ed_miibus_readreg(dev, phy, reg)
3374 struct ed_softc *sc;
3378 sc = device_get_softc(dev);
3384 (*sc->mii_writebits)(sc, 0xffffffff, 32);
3385 (*sc->mii_writebits)(sc, ED_MII_STARTDELIM, ED_MII_STARTDELIM_BITS);
3386 (*sc->mii_writebits)(sc, ED_MII_READOP, ED_MII_OP_BITS);
3387 (*sc->mii_writebits)(sc, phy, ED_MII_PHY_BITS);
3388 (*sc->mii_writebits)(sc, reg, ED_MII_REG_BITS);
3390 failed = (*sc->mii_readbits)(sc, ED_MII_ACK_BITS);
3391 val = (*sc->mii_readbits)(sc, ED_MII_DATA_BITS);
3392 (*sc->mii_writebits)(sc, ED_MII_IDLE, ED_MII_IDLE_BITS);
3395 return (failed ? 0 : val);
3399 ed_miibus_writereg(dev, phy, reg, data)
3403 struct ed_softc *sc;
3407 sc = device_get_softc(dev);
3413 (*sc->mii_writebits)(sc, 0xffffffff, 32);
3414 (*sc->mii_writebits)(sc, ED_MII_STARTDELIM, ED_MII_STARTDELIM_BITS);
3415 (*sc->mii_writebits)(sc, ED_MII_WRITEOP, ED_MII_OP_BITS);
3416 (*sc->mii_writebits)(sc, phy, ED_MII_PHY_BITS);
3417 (*sc->mii_writebits)(sc, reg, ED_MII_REG_BITS);
3418 (*sc->mii_writebits)(sc, ED_MII_TURNAROUND, ED_MII_TURNAROUND_BITS);
3419 (*sc->mii_writebits)(sc, data, ED_MII_DATA_BITS);
3420 (*sc->mii_writebits)(sc, ED_MII_IDLE, ED_MII_IDLE_BITS);
3429 struct ed_softc *sc;
3430 struct mii_data *mii;
3433 if (sc->gone || sc->miibus == NULL)
3436 mii = device_get_softc(sc->miibus);
3437 return mii_mediachg(mii);
3441 ed_ifmedia_sts(ifp, ifmr)
3443 struct ifmediareq *ifmr;
3445 struct ed_softc *sc;
3446 struct mii_data *mii;
3449 if (sc->gone || sc->miibus == NULL)
3452 mii = device_get_softc(sc->miibus);
3454 ifmr->ifm_active = mii->mii_media_active;
3455 ifmr->ifm_status = mii->mii_media_status;
3459 ed_child_detached(dev, child)
3463 struct ed_softc *sc;
3465 sc = device_get_softc(dev);
3466 if (child == sc->miibus)
3473 struct ed_softc *sc;
3475 struct ifnet *ifp = (struct ifnet *)sc;
3479 /* Bit 6 in AX88190 RCR register must be set. */
3480 if (sc->chip_type == ED_CHIP_TYPE_AX88190)
3485 /* set page 1 registers */
3486 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_PAGE_1 | ED_CR_STP);
3488 if (ifp->if_flags & IFF_PROMISC) {
3491 * Reconfigure the multicast filter.
3493 for (i = 0; i < 8; i++)
3494 ed_nic_outb(sc, ED_P1_MAR(i), 0xff);
3497 * And turn on promiscuous mode. Also enable reception of
3498 * runts and packets with CRC & alignment errors.
3500 /* Set page 0 registers */
3501 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP);
3503 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_PRO | ED_RCR_AM |
3504 ED_RCR_AB | ED_RCR_AR | ED_RCR_SEP | reg1);
3506 /* set up multicast addresses and filter modes */
3507 if (ifp->if_flags & IFF_MULTICAST) {
3510 if (ifp->if_flags & IFF_ALLMULTI) {
3511 mcaf[0] = 0xffffffff;
3512 mcaf[1] = 0xffffffff;
3514 ds_getmcaf(sc, mcaf);
3517 * Set multicast filter on chip.
3519 for (i = 0; i < 8; i++)
3520 ed_nic_outb(sc, ED_P1_MAR(i), ((u_char *) mcaf)[i]);
3522 /* Set page 0 registers */
3523 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP);
3525 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_AM | ED_RCR_AB | reg1);
3529 * Initialize multicast address hashing registers to
3530 * not accept multicasts.
3532 for (i = 0; i < 8; ++i)
3533 ed_nic_outb(sc, ED_P1_MAR(i), 0x00);
3535 /* Set page 0 registers */
3536 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP);
3538 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_AB | reg1);
3545 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA);
3549 * Compute crc for ethernet address
3553 const uint8_t *addr;
3555 #define ED_POLYNOMIAL 0x04c11db6
3556 register uint32_t crc = 0xffffffff;
3557 register int carry, idx, bit;
3558 register uint8_t data;
3560 for (idx = 6; --idx >= 0;) {
3561 for (data = *addr++, bit = 8; --bit >= 0; data >>=1 ) {
3562 carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01);
3565 crc = (crc ^ ED_POLYNOMIAL) | carry;
3573 * Compute the multicast address filter from the
3574 * list of multicast addresses we need to listen to.
3577 ds_getmcaf(sc, mcaf)
3578 struct ed_softc *sc;
3582 u_char *af = (u_char *) mcaf;
3583 struct ifmultiaddr *ifma;
3588 for (ifma = sc->arpcom.ac_if.if_multiaddrs.lh_first; ifma;
3589 ifma = ifma->ifma_link.le_next) {
3590 if (ifma->ifma_addr->sa_family != AF_LINK)
3592 index = ds_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr))
3594 af[index >> 3] |= 1 << (index & 7);