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freebsd-dev/sys/pci/if_de.c
Garrett Wollman 1608c58429 Let the user know what errors are experienced on received packets. 
I spent the better part of a day trying to figure out why my
experiment didn't work the way I expected, only to find out that
the router was dropping huge numbers of packets because of PCI bus
priblems.  This does not fix the bug that errors are counted as
input packets because my patch doesn't apply cleanly.
1996-05-21 19:05:31 +00:00

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/*-
* Copyright (c) 1994, 1995 Matt Thomas (matt@lkg.dec.com)
* 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. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR 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_de.c,v 1.46 1996/05/03 21:01:34 phk Exp $
*
*/
/*
* DEC DC21040 PCI Ethernet Controller
*
* Written by Matt Thomas
* BPF support code stolen directly from if_ec.c
*
* This driver supports the DEC DE435 or any other PCI
* board which support DC21040, DC21041, or DC21140 (mostly).
*/
#if defined(__FreeBSD__)
#include "de.h"
#endif
#if NDE > 0 || !defined(__FreeBSD__)
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/proc.h> /* only for declaration of wakeup() used by vm.h */
#if defined(__FreeBSD__)
#include <sys/devconf.h>
#include <machine/clock.h>
#elif defined(__bsdi__) || defined(__NetBSD__)
#include <sys/device.h>
#endif
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_dl.h>
#include <net/route.h>
#include "bpfilter.h"
#if NBPFILTER > 0
#include <net/bpf.h>
#include <net/bpfdesc.h>
#endif
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#ifdef NS
#include <netns/ns.h>
#include <netns/ns_if.h>
#endif
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <vm/vm_kern.h>
#if defined(__FreeBSD__)
#include <pci.h>
#if NPCI > 0
#include <pci/pcivar.h>
#include <pci/dc21040.h>
#endif
#endif /* __FreeBSD__ */
#if defined(__bsdi__)
#include <i386/pci/pci.h>
#include <i386/pci/ic/dc21040.h>
#include <i386/isa/isa.h>
#include <i386/isa/icu.h>
#include <i386/isa/dma.h>
#include <i386/isa/isavar.h>
#include <eisa.h>
#if NEISA > 0
#include <i386/eisa/eisa.h>
#define TULIP_EISA
#endif
#endif /* __bsdi__ */
#if defined(__NetBSD__)
#include <dev/pci/pcivar.h>
#include <dev/ic/dc21040reg.h>
#if defined(__i386__)
#include <i386/isa/isa_machdep.h>
#endif
#endif /* __NetBSD__ */
/*
* Intel CPUs should use I/O mapped access.
* (NetBSD doesn't support it yet)
*/
#if defined(__i386__) && !defined(__NetBSD__)
#define TULIP_IOMAPPED
#endif
/*
* This module supports
* the DEC DC21040 PCI Ethernet Controller.
* the DEC DC21041 PCI Ethernet Controller.
* the DEC DC21140 PCI Fast Ethernet Controller.
*/
typedef struct {
tulip_desc_t *ri_first;
tulip_desc_t *ri_last;
tulip_desc_t *ri_nextin;
tulip_desc_t *ri_nextout;
int ri_max;
int ri_free;
} tulip_ringinfo_t;
#ifdef TULIP_IOMAPPED
typedef tulip_uint16_t tulip_csrptr_t;
#define TULIP_EISA_CSRSIZE 16
#define TULIP_EISA_CSROFFSET 0
#define TULIP_PCI_CSRSIZE 8
#define TULIP_PCI_CSROFFSET 0
#define TULIP_READ_CSR(sc, csr) (inl((sc)->tulip_csrs.csr))
#define TULIP_WRITE_CSR(sc, csr, val) outl((sc)->tulip_csrs.csr, val)
#define TULIP_READ_CSRBYTE(sc, csr) (inb((sc)->tulip_csrs.csr))
#define TULIP_WRITE_CSRBYTE(sc, csr, val) outb((sc)->tulip_csrs.csr, val)
#else /* TULIP_IOMAPPED */
typedef volatile tulip_uint32_t *tulip_csrptr_t;
#if defined(__alpha__)
#define TULIP_PCI_CSRSIZE (256 / sizeof(tulip_uint32_t))
#define TULIP_PCI_CSROFFSET (24 / sizeof(tulip_uint32_t))
#elif defined(__i386__)
#define TULIP_PCI_CSRSIZE (8 / sizeof(tulip_uint32_t))
#define TULIP_PCI_CSROFFSET 0
#endif
/*
* macros to read and write CSRs. Note that the "0 +" in
* READ_CSR is to prevent the macro from being an lvalue
* and WRITE_CSR shouldn't be assigned from.
*/
#define TULIP_READ_CSR(sc, csr) (0 + *(sc)->tulip_csrs.csr)
#ifndef __alpha__
#define TULIP_WRITE_CSR(sc, csr, val) \
((void)(*(sc)->tulip_csrs.csr = (val)))
#else
#define TULIP_WRITE_CSR(sc, csr, val) \
((void)(*(sc)->tulip_csrs.csr = (val), MB()))
#endif
#endif /* TULIP_IOMAPPED */
typedef struct {
tulip_csrptr_t csr_busmode; /* CSR0 */
tulip_csrptr_t csr_txpoll; /* CSR1 */
tulip_csrptr_t csr_rxpoll; /* CSR2 */
tulip_csrptr_t csr_rxlist; /* CSR3 */
tulip_csrptr_t csr_txlist; /* CSR4 */
tulip_csrptr_t csr_status; /* CSR5 */
tulip_csrptr_t csr_command; /* CSR6 */
tulip_csrptr_t csr_intr; /* CSR7 */
tulip_csrptr_t csr_missed_frame; /* CSR8 */
/* DC21040 specific registers */
tulip_csrptr_t csr_enetrom; /* CSR9 */
tulip_csrptr_t csr_reserved; /* CSR10 */
tulip_csrptr_t csr_full_duplex; /* CSR11 */
/* DC21040/DC21041 common registers */
tulip_csrptr_t csr_sia_status; /* CSR12 */
tulip_csrptr_t csr_sia_connectivity; /* CSR13 */
tulip_csrptr_t csr_sia_tx_rx; /* CSR14 */
tulip_csrptr_t csr_sia_general; /* CSR15 */
/* DC21140/DC21041 common registers */
tulip_csrptr_t csr_srom_mii; /* CSR9 */
tulip_csrptr_t csr_gp_timer; /* CSR11 */
/* DC21140 specific registers */
tulip_csrptr_t csr_gp; /* CSR12 */
tulip_csrptr_t csr_watchdog; /* CSR15 */
/* DC21041 specific registers */
tulip_csrptr_t csr_bootrom; /* CSR10 */
} tulip_regfile_t;
/*
* The DC21040 has a stupid restriction in that the receive
* buffers must be longword aligned. But since Ethernet
* headers are not a multiple of longwords in size this forces
* the data to non-longword aligned. Since IP requires the
* data to be longword aligned, we need to copy it after it has
* been DMA'ed in our memory.
*
* Since we have to copy it anyways, we might as well as allocate
* dedicated receive space for the input. This allows to use a
* small receive buffer size and more ring entries to be able to
* better keep with a flood of tiny Ethernet packets.
*
* The receive space MUST ALWAYS be a multiple of the page size.
* And the number of receive descriptors multiplied by the size
* of the receive buffers must equal the recevive space. This
* is so that we can manipulate the page tables so that even if a
* packet wraps around the end of the receive space, we can
* treat it as virtually contiguous.
*
* The above used to be true (the stupid restriction is still true)
* but we gone to directly DMA'ing into MBUFs because with 100Mb
* cards the copying is just too much of a hit.
*/
#if defined(__alpha__)
#define TULIP_COPY_RXDATA 1
#endif
#define TULIP_RXDESCS 16
#define TULIP_TXDESCS 128
#define TULIP_RXQ_TARGET 8
typedef enum {
TULIP_DC21040_GENERIC,
TULIP_DC21040_ZX314_MASTER,
TULIP_DC21040_ZX314_SLAVE,
TULIP_DC21140_DEC_EB,
TULIP_DC21140_DEC_DE500,
TULIP_DC21140_COGENT_EM100,
TULIP_DC21140_ZNYX_ZX34X,
TULIP_DC21041_GENERIC,
TULIP_DC21041_DE450
} tulip_board_t;
typedef struct _tulip_softc_t tulip_softc_t;
typedef struct {
tulip_board_t bd_type;
const char *bd_description;
int (*bd_media_probe)(tulip_softc_t *sc);
void (*bd_media_select)(tulip_softc_t *sc);
} tulip_boardsw_t;
typedef enum {
TULIP_DC21040, TULIP_DC21140,
TULIP_DC21041, TULIP_DE425,
TULIP_CHIPID_UNKNOWN
} tulip_chipid_t;
typedef enum {
TULIP_PROBE_INACTIVE, TULIP_PROBE_10BASET, TULIP_PROBE_AUI,
TULIP_PROBE_BNC
} tulip_probe_state_t;
typedef enum {
TULIP_MEDIA_UNKNOWN, TULIP_MEDIA_10BASET,
TULIP_MEDIA_BNC, TULIP_MEDIA_AUI,
TULIP_MEDIA_BNCAUI, TULIP_MEDIA_100BASET
} tulip_media_t;
struct _tulip_softc_t {
#if defined(__bsdi__)
struct device tulip_dev; /* base device */
struct isadev tulip_id; /* ISA device */
struct intrhand tulip_ih; /* intrrupt vectoring */
struct atshutdown tulip_ats; /* shutdown hook */
#endif
#if defined(__NetBSD__)
struct device tulip_dev; /* base device */
void *tulip_ih; /* intrrupt vectoring */
void *tulip_ats; /* shutdown hook */
#endif
struct arpcom tulip_ac;
tulip_regfile_t tulip_csrs;
unsigned tulip_flags;
#define TULIP_WANTSETUP 0x0001
#define TULIP_WANTHASH 0x0002
#define TULIP_DOINGSETUP 0x0004
#define TULIP_ALTPHYS 0x0008 /* use AUI */
#define TULIP_TXPROBE_ACTIVE 0x0010
#define TULIP_TXPROBE_OK 0x0020
#define TULIP_INRESET 0x0040
#define TULIP_WANTRXACT 0x0080
#define TULIP_SLAVEDROM 0x0100
#define TULIP_ROMOK 0x0200
unsigned char tulip_rombuf[128];
tulip_uint32_t tulip_setupbuf[192/sizeof(tulip_uint32_t)];
tulip_uint32_t tulip_setupdata[192/sizeof(tulip_uint32_t)];
tulip_uint32_t tulip_intrmask;
tulip_uint32_t tulip_cmdmode;
tulip_uint32_t tulip_revinfo;
tulip_uint32_t tulip_gpticks;
/* tulip_uint32_t tulip_bus; XXX */
tulip_media_t tulip_media;
tulip_probe_state_t tulip_probe_state;
tulip_chipid_t tulip_chipid;
const tulip_boardsw_t *tulip_boardsw;
tulip_softc_t *tulip_slaves;
struct ifqueue tulip_txq;
struct ifqueue tulip_rxq;
tulip_ringinfo_t tulip_rxinfo;
tulip_ringinfo_t tulip_txinfo;
};
#ifndef IFF_ALTPHYS
#define IFF_ALTPHYS IFF_LINK0 /* In case it isn't defined */
#endif
static const char *tulip_chipdescs[] = {
"DC21040 [10Mb/s]",
"DC21140 [10-100Mb/s]",
"DC21041 [10Mb/s]",
#if defined(TULIP_EISA)
"DE425 [10Mb/s]"
#endif
};
#if defined(__FreeBSD__)
typedef void ifnet_ret_t;
typedef int ioctl_cmd_t;
static tulip_softc_t *tulips[NDE];
#define TULIP_UNIT_TO_SOFTC(unit) (tulips[unit])
#endif
#if defined(__bsdi__)
typedef int ifnet_ret_t;
typedef int ioctl_cmd_t;
extern struct cfdriver decd;
#define TULIP_UNIT_TO_SOFTC(unit) ((tulip_softc_t *) decd.cd_devs[unit])
#define TULIP_BURSTSIZE(unit) 3
#endif
#if defined(__NetBSD__)
typedef void ifnet_ret_t;
typedef u_long ioctl_cmd_t;
extern struct cfdriver decd;
#define TULIP_UNIT_TO_SOFTC(unit) ((tulip_softc_t *) decd.cd_devs[unit])
#endif
#ifndef TULIP_BURSTSIZE
#define TULIP_BURSTSIZE(unit) 3
#endif
#define tulip_if tulip_ac.ac_if
#define tulip_unit tulip_ac.ac_if.if_unit
#define tulip_name tulip_ac.ac_if.if_name
#define tulip_bpf tulip_ac.ac_if.if_bpf
#define tulip_hwaddr tulip_ac.ac_enaddr
#define TULIP_CRC32_POLY 0xEDB88320UL /* CRC-32 Poly -- Little Endian */
#define TULIP_CHECK_RXCRC 0
#define TULIP_MAX_TXSEG 30
#define TULIP_ADDREQUAL(a1, a2) \
(((u_short *)a1)[0] == ((u_short *)a2)[0] \
&& ((u_short *)a1)[1] == ((u_short *)a2)[1] \
&& ((u_short *)a1)[2] == ((u_short *)a2)[2])
#define TULIP_ADDRBRDCST(a1) \
(((u_short *)a1)[0] == 0xFFFFU \
&& ((u_short *)a1)[1] == 0xFFFFU \
&& ((u_short *)a1)[2] == 0xFFFFU)
static ifnet_ret_t tulip_start(struct ifnet *ifp);
static void tulip_rx_intr(tulip_softc_t *sc);
static void tulip_addr_filter(tulip_softc_t *sc);
static int
tulip_dc21040_media_probe(
tulip_softc_t * const sc)
{
int cnt;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, 0);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
for (cnt = 0; cnt < 2400; cnt++) {
if ((TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) == 0)
break;
DELAY(1000);
}
return (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) != 0;
}
static void
tulip_dc21040_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_THRSHLD160
|TULIP_CMD_BACKOFFCTR;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
printf("%s%d: enabling Thinwire/AUI port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_AUI);
sc->tulip_flags |= TULIP_ALTPHYS;
} else {
if (sc->tulip_flags & TULIP_ALTPHYS)
printf("%s%d: enabling 10baseT/UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
sc->tulip_flags &= ~TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_10BASET;
}
}
static const tulip_boardsw_t tulip_dc21040_boardsw = {
TULIP_DC21040_GENERIC,
"",
tulip_dc21040_media_probe,
tulip_dc21040_media_select
};
static int
tulip_zx314_media_probe(
tulip_softc_t * const sc)
{
TULIP_WRITE_CSR(sc, csr_sia_connectivity, 0);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
return 0;
}
static void
tulip_zx314_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_THRSHLD160
|TULIP_CMD_BACKOFFCTR;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
if (sc->tulip_flags & TULIP_ALTPHYS)
printf("%s%d: enabling 10baseT/UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
sc->tulip_flags &= ~TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_10BASET;
}
static const tulip_boardsw_t tulip_dc21040_zx314_master_boardsw = {
TULIP_DC21040_ZX314_MASTER,
"ZNYX ZX314 ",
tulip_zx314_media_probe,
tulip_zx314_media_select
};
static const tulip_boardsw_t tulip_dc21040_zx314_slave_boardsw = {
TULIP_DC21040_ZX314_SLAVE,
"ZNYX ZX314 ",
tulip_zx314_media_probe,
tulip_zx314_media_select
};
static int
tulip_dc21140_evalboard_media_probe(
tulip_softc_t * const sc)
{
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_PINS);
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_INIT);
TULIP_WRITE_CSR(sc, csr_command,
TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT |
TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
TULIP_WRITE_CSR(sc, csr_command,
TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
DELAY(1000000);
return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_EB_OK100) != 0;
}
static void
tulip_dc21140_evalboard_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
|TULIP_CMD_BACKOFFCTR;
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_PINS);
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_INIT);
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
printf("%s%d: enabling 100baseTX UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_flags |= TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_100BASET;
} else {
if (sc->tulip_flags & TULIP_ALTPHYS)
printf("%s%d: enabling 10baseT UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER);
sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_flags &= ~TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_10BASET;
}
}
static const tulip_boardsw_t tulip_dc21140_eb_boardsw = {
TULIP_DC21140_DEC_EB,
"",
tulip_dc21140_evalboard_media_probe,
tulip_dc21140_evalboard_media_select
};
static int
tulip_dc21140_cogent_em100_media_probe(
tulip_softc_t * const sc)
{
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_PINS);
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_INIT);
TULIP_WRITE_CSR(sc, csr_command,
TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT |
TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
TULIP_WRITE_CSR(sc, csr_command,
TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
return 1;
}
static void
tulip_dc21140_cogent_em100_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
|TULIP_CMD_BACKOFFCTR;
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_PINS);
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_INIT);
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
printf("%s%d: enabling 100baseTX UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_flags |= TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_100BASET;
}
static const tulip_boardsw_t tulip_dc21140_cogent_em100_boardsw = {
TULIP_DC21140_COGENT_EM100,
"Cogent EM100 ",
tulip_dc21140_cogent_em100_media_probe,
tulip_dc21140_cogent_em100_media_select
};
static int
tulip_dc21140_znyx_zx34x_media_probe(
tulip_softc_t * const sc)
{
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_ZX34X_PINS);
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_ZX34X_INIT);
TULIP_WRITE_CSR(sc, csr_command,
TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT |
TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
TULIP_WRITE_CSR(sc, csr_command,
TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
DELAY(1000000);
return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_ZX34X_OK10);
}
static void
tulip_dc21140_znyx_zx34x_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
|TULIP_CMD_BACKOFFCTR;
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_ZX34X_PINS);
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_ZX34X_INIT);
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
printf("%s%d: enabling 100baseTX UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_flags |= TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_100BASET;
} else {
if (sc->tulip_flags & TULIP_ALTPHYS)
printf("%s%d: enabling 10baseT UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER);
sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_flags &= ~TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_10BASET;
}
}
static const tulip_boardsw_t tulip_dc21140_znyx_zx34x_boardsw = {
TULIP_DC21140_ZNYX_ZX34X,
"ZNYX ZX34X ",
tulip_dc21140_znyx_zx34x_media_probe,
tulip_dc21140_znyx_zx34x_media_select
};
static int
tulip_dc21140_de500_media_probe(
tulip_softc_t * const sc)
{
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_PINS);
DELAY(1000);
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_HALFDUPLEX);
if ((TULIP_READ_CSR(sc, csr_gp) &
(TULIP_GP_DE500_NOTOK_100|TULIP_GP_DE500_NOTOK_10)) !=
(TULIP_GP_DE500_NOTOK_100|TULIP_GP_DE500_NOTOK_10))
return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_DE500_NOTOK_100) != 0;
TULIP_WRITE_CSR(sc, csr_gp,
TULIP_GP_DE500_HALFDUPLEX|TULIP_GP_DE500_FORCE_100);
TULIP_WRITE_CSR(sc, csr_command,
TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT |
TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
TULIP_WRITE_CSR(sc, csr_command,
TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
DELAY(1000000);
return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_DE500_NOTOK_100) != 0;
}
static void
tulip_dc21140_de500_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
|TULIP_CMD_BACKOFFCTR;
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_PINS);
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
printf("%s%d: enabling 100baseTX UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_flags |= TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_100BASET;
TULIP_WRITE_CSR(sc, csr_gp,
TULIP_GP_DE500_HALFDUPLEX|TULIP_GP_DE500_FORCE_100);
} else {
if (sc->tulip_flags & TULIP_ALTPHYS)
printf("%s%d: enabling 10baseT UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER);
sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_flags &= ~TULIP_ALTPHYS;
sc->tulip_media = TULIP_MEDIA_10BASET;
TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_HALFDUPLEX);
}
}
static const tulip_boardsw_t tulip_dc21140_de500_boardsw = {
TULIP_DC21140_DEC_DE500, "Digital DE500 ",
tulip_dc21140_de500_media_probe,
tulip_dc21140_de500_media_select
};
static int
tulip_dc21041_media_probe(
tulip_softc_t * const sc)
{
return 0;
}
static void
tulip_dc21041_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_ENHCAPTEFFCT
/* |TULIP_CMD_FULLDUPLEX */ |TULIP_CMD_THRSHLD160|TULIP_CMD_BACKOFFCTR;
sc->tulip_intrmask |= TULIP_STS_NORMALINTR|TULIP_STS_GPTIMEOUT
|TULIP_STS_ABNRMLINTR|TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL;
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0) {
sc->tulip_media = TULIP_MEDIA_UNKNOWN;
sc->tulip_flags &= ~(TULIP_TXPROBE_OK|TULIP_TXPROBE_ACTIVE);
sc->tulip_flags |= TULIP_ALTPHYS|TULIP_WANTRXACT;
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
}
} else {
if (sc->tulip_flags & TULIP_ALTPHYS) {
sc->tulip_media = TULIP_MEDIA_UNKNOWN;
sc->tulip_flags &= ~(TULIP_TXPROBE_OK|TULIP_TXPROBE_ACTIVE|TULIP_ALTPHYS);
sc->tulip_flags |= TULIP_WANTRXACT;
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
}
}
if (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) {
if (sc->tulip_media == TULIP_MEDIA_10BASET) {
sc->tulip_media = TULIP_MEDIA_UNKNOWN;
} else if (sc->tulip_media == TULIP_MEDIA_BNC) {
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
TULIP_WRITE_CSR(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_BNC);
TULIP_WRITE_CSR(sc, csr_sia_general, TULIP_DC21041_SIAGEN_BNC);
return;
} else if (sc->tulip_media == TULIP_MEDIA_AUI) {
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
TULIP_WRITE_CSR(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_AUI);
TULIP_WRITE_CSR(sc, csr_sia_general, TULIP_DC21041_SIAGEN_AUI);
return;
}
switch (sc->tulip_probe_state) {
case TULIP_PROBE_INACTIVE: {
TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
sc->tulip_if.if_flags |= IFF_OACTIVE;
sc->tulip_gpticks = 200;
sc->tulip_probe_state = TULIP_PROBE_10BASET;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_10BASET);
TULIP_WRITE_CSR(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_10BASET);
TULIP_WRITE_CSR(sc, csr_sia_general, TULIP_DC21041_SIAGEN_10BASET);
TULIP_WRITE_CSR(sc, csr_gp_timer, 12000000 / 204800); /* 120 ms */
break;
}
case TULIP_PROBE_10BASET: {
if (--sc->tulip_gpticks > 0) {
if ((TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_OTHERRXACTIVITY) == 0) {
TULIP_WRITE_CSR(sc, csr_gp_timer, 12000000 / 204800); /* 120 ms */
TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
break;
}
}
sc->tulip_gpticks = 4;
if (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_OTHERRXACTIVITY) {
sc->tulip_probe_state = TULIP_PROBE_BNC;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
TULIP_WRITE_CSR(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_BNC);
TULIP_WRITE_CSR(sc, csr_sia_general, TULIP_DC21041_SIAGEN_BNC);
TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
} else {
sc->tulip_probe_state = TULIP_PROBE_AUI;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
TULIP_WRITE_CSR(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_AUI);
TULIP_WRITE_CSR(sc, csr_sia_general, TULIP_DC21041_SIAGEN_AUI);
TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
}
break;
}
case TULIP_PROBE_BNC:
case TULIP_PROBE_AUI: {
if (sc->tulip_flags & TULIP_TXPROBE_OK) {
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
sc->tulip_flags &= ~(TULIP_TXPROBE_OK|TULIP_TXPROBE_ACTIVE);
TULIP_WRITE_CSR(sc, csr_gp_timer, 0); /* disable */
if ((sc->tulip_probe_state == TULIP_PROBE_AUI
&& sc->tulip_media != TULIP_MEDIA_AUI)
|| (sc->tulip_probe_state == TULIP_PROBE_BNC
&& sc->tulip_media != TULIP_MEDIA_AUI)) {
printf("%s%d: enabling %s port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit,
sc->tulip_probe_state == TULIP_PROBE_BNC
? "Thinwire/BNC" : "AUI");
if (sc->tulip_probe_state == TULIP_PROBE_AUI)
sc->tulip_media = TULIP_MEDIA_AUI;
else if (sc->tulip_probe_state == TULIP_PROBE_BNC)
sc->tulip_media = TULIP_MEDIA_BNC;
}
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
break;
}
if ((sc->tulip_flags & TULIP_WANTRXACT) == 0
|| (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_RXACTIVITY)) {
if ((sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0) {
struct mbuf *m;
/*
* Before we are sure this is the right media we need
* to send a small packet to make sure there's carrier.
* Strangely, BNC and AUI will "see" receive data if
* either is connected so the transmit is the only way
* to verify the connectivity.
*/
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL) {
TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
break;
}
/*
* Construct a LLC TEST message which will point to ourselves.
*/
bcopy(sc->tulip_hwaddr, mtod(m, struct ether_header *)->ether_dhost, 6);
bcopy(sc->tulip_hwaddr, mtod(m, struct ether_header *)->ether_shost, 6);
mtod(m, struct ether_header *)->ether_type = htons(3);
mtod(m, unsigned char *)[14] = 0;
mtod(m, unsigned char *)[15] = 0;
mtod(m, unsigned char *)[16] = 0xE3; /* LLC Class1 TEST (no poll) */
m->m_len = m->m_pkthdr.len = sizeof(struct ether_header) + 3;
/*
* send it!
*/
sc->tulip_flags |= TULIP_TXPROBE_ACTIVE;
sc->tulip_flags &= ~TULIP_TXPROBE_OK;
sc->tulip_cmdmode |= TULIP_CMD_TXRUN;
TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
IF_PREPEND(&sc->tulip_if.if_snd, m);
tulip_start(&sc->tulip_if);
break;
}
sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE;
}
/*
* Take 2 passes through before deciding to not
* wait for receive activity. Then take another
* two passes before spitting out a warning.
*/
if (sc->tulip_gpticks > 0 && --sc->tulip_gpticks == 0) {
if (sc->tulip_flags & TULIP_WANTRXACT) {
sc->tulip_flags &= ~TULIP_WANTRXACT;
sc->tulip_gpticks = 4;
} else {
printf("%s%d: autosense failed: cable problem?\n",
sc->tulip_name, sc->tulip_unit);
}
}
/*
* Since this media failed to probe, try the other one.
*/
if (sc->tulip_probe_state == TULIP_PROBE_AUI) {
sc->tulip_probe_state = TULIP_PROBE_BNC;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
TULIP_WRITE_CSR(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_BNC);
TULIP_WRITE_CSR(sc, csr_sia_general, TULIP_DC21041_SIAGEN_BNC);
TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
} else {
sc->tulip_probe_state = TULIP_PROBE_AUI;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
TULIP_WRITE_CSR(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_AUI);
TULIP_WRITE_CSR(sc, csr_sia_general, TULIP_DC21041_SIAGEN_AUI);
TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
}
TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
break;
}
}
} else {
/*
* If the link has passed LinkPass, 10baseT is the
* proper media to use.
*/
if (sc->tulip_media != TULIP_MEDIA_10BASET)
printf("%s%d: enabling 10baseT/UTP port\n",
sc->tulip_if.if_name, sc->tulip_if.if_unit);
if (sc->tulip_media != TULIP_MEDIA_10BASET
|| (sc->tulip_flags & TULIP_INRESET)) {
sc->tulip_media = TULIP_MEDIA_10BASET;
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_10BASET);
TULIP_WRITE_CSR(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_10BASET);
TULIP_WRITE_CSR(sc, csr_sia_general, TULIP_DC21041_SIAGEN_10BASET);
}
TULIP_WRITE_CSR(sc, csr_gp_timer, 0); /* disable */
sc->tulip_gpticks = 1;
sc->tulip_probe_state = TULIP_PROBE_10BASET;
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
sc->tulip_if.if_flags &= ~IFF_OACTIVE;
}
TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
}
static const tulip_boardsw_t tulip_dc21041_boardsw = {
TULIP_DC21041_GENERIC,
"",
tulip_dc21041_media_probe,
tulip_dc21041_media_select
};
static const tulip_boardsw_t tulip_dc21041_de450_boardsw = {
TULIP_DC21041_DE450,
"Digital DE450 ",
tulip_dc21041_media_probe,
tulip_dc21041_media_select
};
static void
tulip_reset(
tulip_softc_t * const sc)
{
tulip_ringinfo_t *ri;
tulip_desc_t *di;
TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at
33MHz that comes to two microseconds but wait a
bit longer anyways) */
sc->tulip_flags |= TULIP_INRESET;
sc->tulip_intrmask = 0;
TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
TULIP_WRITE_CSR(sc, csr_txlist, vtophys(&sc->tulip_txinfo.ri_first[0]));
TULIP_WRITE_CSR(sc, csr_rxlist, vtophys(&sc->tulip_rxinfo.ri_first[0]));
TULIP_WRITE_CSR(sc, csr_busmode,
(1 << (TULIP_BURSTSIZE(sc->tulip_unit) + 8))
|TULIP_BUSMODE_CACHE_ALIGN8
|(BYTE_ORDER != LITTLE_ENDIAN ? TULIP_BUSMODE_BIGENDIAN : 0));
sc->tulip_txq.ifq_maxlen = TULIP_TXDESCS;
/*
* Free all the mbufs that were on the transmit ring.
*/
for (;;) {
struct mbuf *m;
IF_DEQUEUE(&sc->tulip_txq, m);
if (m == NULL)
break;
m_freem(m);
}
ri = &sc->tulip_txinfo;
ri->ri_nextin = ri->ri_nextout = ri->ri_first;
ri->ri_free = ri->ri_max;
for (di = ri->ri_first; di < ri->ri_last; di++)
di->d_status = 0;
/*
* We need to collect all the mbufs were on the
* receive ring before we reinit it either to put
* them back on or to know if we have to allocate
* more.
*/
ri = &sc->tulip_rxinfo;
ri->ri_nextin = ri->ri_nextout = ri->ri_first;
ri->ri_free = ri->ri_max;
for (di = ri->ri_first; di < ri->ri_last; di++) {
di->d_status = 0;
di->d_length1 = 0; di->d_addr1 = 0;
di->d_length2 = 0; di->d_addr2 = 0;
}
for (;;) {
struct mbuf *m;
IF_DEQUEUE(&sc->tulip_rxq, m);
if (m == NULL)
break;
m_freem(m);
}
(*sc->tulip_boardsw->bd_media_select)(sc);
sc->tulip_intrmask |= TULIP_STS_NORMALINTR|TULIP_STS_RXINTR|TULIP_STS_TXINTR
|TULIP_STS_ABNRMLINTR|TULIP_STS_SYSERROR|TULIP_STS_TXSTOPPED
|TULIP_STS_TXBABBLE|TULIP_STS_LINKFAIL|TULIP_STS_RXSTOPPED;
sc->tulip_flags &= ~(TULIP_DOINGSETUP|TULIP_WANTSETUP|TULIP_INRESET);
tulip_addr_filter(sc);
}
static void
tulip_init(
tulip_softc_t * const sc)
{
if (sc->tulip_if.if_flags & IFF_UP) {
sc->tulip_if.if_flags |= IFF_RUNNING;
if (sc->tulip_if.if_flags & IFF_PROMISC) {
sc->tulip_cmdmode |= TULIP_CMD_PROMISCUOUS;
} else {
sc->tulip_cmdmode &= ~TULIP_CMD_PROMISCUOUS;
if (sc->tulip_if.if_flags & IFF_ALLMULTI) {
sc->tulip_cmdmode |= TULIP_CMD_ALLMULTI;
} else {
sc->tulip_cmdmode &= ~TULIP_CMD_ALLMULTI;
}
}
sc->tulip_cmdmode |= TULIP_CMD_TXRUN;
if ((sc->tulip_flags & TULIP_WANTSETUP) == 0) {
tulip_rx_intr(sc);
sc->tulip_cmdmode |= TULIP_CMD_RXRUN;
sc->tulip_intrmask |= TULIP_STS_RXSTOPPED;
} else {
sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED;
tulip_start(&sc->tulip_if);
}
TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
} else {
tulip_reset(sc);
sc->tulip_if.if_flags &= ~IFF_RUNNING;
}
}
#if TULIP_CHECK_RXCRC
static unsigned
tulip_crc32(
u_char *addr,
int len)
{
unsigned int crc = 0xFFFFFFFF;
static unsigned int crctbl[256];
int idx;
static int done;
/*
* initialize the multicast address CRC table
*/
for (idx = 0; !done && idx < 256; idx++) {
unsigned int tmp = idx;
tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */
tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */
tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */
tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */
tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */
tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */
tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */
tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */
crctbl[idx] = tmp;
}
done = 1;
while (len-- > 0)
crc = (crc >> 8) ^ crctbl[*addr++] ^ crctbl[crc & 0xFF];
return crc;
}
#endif
static void
tulip_rx_intr(
tulip_softc_t * const sc)
{
tulip_ringinfo_t * const ri = &sc->tulip_rxinfo;
struct ifnet * const ifp = &sc->tulip_if;
for (;;) {
struct ether_header eh;
tulip_desc_t *eop = ri->ri_nextin;
int total_len = 0;
struct mbuf *m = NULL;
int accept = 0;
if (sc->tulip_rxq.ifq_len < TULIP_RXQ_TARGET)
goto queue_mbuf;
if (((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER)
break;
total_len = ((eop->d_status >> 16) & 0x7FF) - 4;
IF_DEQUEUE(&sc->tulip_rxq, m);
if ((eop->d_status & TULIP_DSTS_ERRSUM) == 0) {
#if TULIP_CHECK_RXCRC
unsigned crc = tulip_crc32(mtod(m, unsigned char *), total_len);
if (~crc != *((unsigned *) &bufaddr[total_len])) {
printf("%s%d: bad rx crc: %08x [rx] != %08x\n",
sc->tulip_name, sc->tulip_unit,
*((unsigned *) &bufaddr[total_len]), ~crc);
goto next;
}
#endif
eh = *mtod(m, struct ether_header *);
#if NBPFILTER > 0
if (sc->tulip_bpf != NULL)
bpf_tap(ifp, mtod(m, caddr_t), total_len);
#endif
if ((sc->tulip_if.if_flags & IFF_PROMISC)
&& (eh.ether_dhost[0] & 1) == 0
&& !TULIP_ADDREQUAL(eh.ether_dhost, sc->tulip_ac.ac_enaddr))
goto next;
accept = 1;
total_len -= sizeof(struct ether_header);
} else {
#define RXERR(which, what) \
if (eop->d_status & which) \
printf("de%d: receiver: %s\n", ifp->if_unit, what)
RXERR(TULIP_DSTS_RxBADLENGTH, "packet length error");
RXERR(TULIP_DSTS_RxRUNT, "runt frame");
RXERR(TULIP_DSTS_RxTOOLONG, "frame too long");
RXERR(TULIP_DSTS_RxCOLLSEEN, "late collision");
RXERR(TULIP_DSTS_RxBADCRC, "CRC error");
RXERR(TULIP_DSTS_RxOVERFLOW, "FIFO overflow");
#undef RXERR
ifp->if_ierrors++;
}
next:
ifp->if_ipackets++;
if (++ri->ri_nextin == ri->ri_last)
ri->ri_nextin = ri->ri_first;
queue_mbuf:
/*
* Either we are priming the TULIP with mbufs (m == NULL)
* or we are about to accept an mbuf for the upper layers
* so we need to allocate an mbuf to replace it. If we
* can't replace, then count it as an input error and reuse
* the mbuf.
*/
if (accept || m == NULL) {
struct mbuf *m0;
MGETHDR(m0, M_DONTWAIT, MT_DATA);
if (m0 != NULL) {
#if defined(TULIP_COPY_RXDATA)
if (!accept || total_len >= MHLEN) {
#endif
MCLGET(m0, M_DONTWAIT);
if ((m0->m_flags & M_EXT) == 0) {
m_freem(m0);
m0 = NULL;
}
#if defined(TULIP_COPY_RXDATA)
}
#endif
}
if (accept) {
if (m0 != NULL) {
#if defined(__bsdi__)
eh.ether_type = ntohs(eh.ether_type);
#endif
#if !defined(TULIP_COPY_RXDATA)
m->m_data += sizeof(struct ether_header);
m->m_len = m->m_pkthdr.len = total_len;
m->m_pkthdr.rcvif = ifp;
ether_input(ifp, &eh, m);
m = m0;
#else
bcopy(mtod(m, caddr_t) + sizeof(struct ether_header),
mtod(m0, caddr_t), total_len);
m0->m_len = m0->m_pkthdr.len = total_len;
m0->m_pkthdr.rcvif = ifp;
ether_input(ifp, &eh, m0);
#endif
} else {
ifp->if_ierrors++;
}
} else {
m = m0;
}
}
if (m == NULL)
break;
/*
* Now give the buffer to the TULIP and save in our
* receive queue.
*/
ri->ri_nextout->d_length1 = MCLBYTES - 4;
ri->ri_nextout->d_addr1 = vtophys(mtod(m, caddr_t));
ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
if (++ri->ri_nextout == ri->ri_last)
ri->ri_nextout = ri->ri_first;
IF_ENQUEUE(&sc->tulip_rxq, m);
}
}
static int
tulip_tx_intr(
tulip_softc_t * const sc)
{
tulip_ringinfo_t * const ri = &sc->tulip_txinfo;
struct mbuf *m;
int xmits = 0;
while (ri->ri_free < ri->ri_max) {
if (((volatile tulip_desc_t *) ri->ri_nextin)->d_status & TULIP_DSTS_OWNER)
break;
if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxLASTSEG) {
if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxSETUPPKT) {
/*
* We've just finished processing a setup packet.
* Mark that we can finished it. If there's not
* another pending, startup the TULIP receiver.
* Make sure we ack the RXSTOPPED so we won't get
* an abormal interrupt indication.
*/
sc->tulip_flags &= ~TULIP_DOINGSETUP;
if ((sc->tulip_flags & TULIP_WANTSETUP) == 0) {
tulip_rx_intr(sc);
sc->tulip_cmdmode |= TULIP_CMD_RXRUN;
sc->tulip_intrmask |= TULIP_STS_RXSTOPPED;
TULIP_WRITE_CSR(sc, csr_status, TULIP_STS_RXSTOPPED);
TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
}
} else {
IF_DEQUEUE(&sc->tulip_txq, m);
m_freem(m);
xmits++;
if (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) {
if ((ri->ri_nextin->d_status & (TULIP_DSTS_TxNOCARR|TULIP_DSTS_TxEXCCOLL)) == 0)
sc->tulip_flags |= TULIP_TXPROBE_OK;
(*sc->tulip_boardsw->bd_media_select)(sc);
} else {
sc->tulip_if.if_collisions +=
(ri->ri_nextin->d_status & TULIP_DSTS_TxCOLLMASK)
>> TULIP_DSTS_V_TxCOLLCNT;
if (ri->ri_nextin->d_status & TULIP_DSTS_ERRSUM)
sc->tulip_if.if_oerrors++;
}
}
}
if (++ri->ri_nextin == ri->ri_last)
ri->ri_nextin = ri->ri_first;
ri->ri_free++;
sc->tulip_if.if_flags &= ~IFF_OACTIVE;
}
sc->tulip_if.if_opackets += xmits;
return xmits;
}
static ifnet_ret_t
tulip_start(
struct ifnet * const ifp)
{
tulip_softc_t * const sc = ifp->if_softc;
struct ifqueue * const ifq = &ifp->if_snd;
tulip_ringinfo_t * const ri = &sc->tulip_txinfo;
struct mbuf *m, *m0, *next_m0;
if ((ifp->if_flags & IFF_RUNNING) == 0
&& (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0)
return;
for (;;) {
tulip_desc_t *eop, *nextout;
int segcnt, free, recopy;
tulip_uint32_t d_status;
if (sc->tulip_flags & TULIP_WANTSETUP) {
if ((sc->tulip_flags & TULIP_DOINGSETUP) || ri->ri_free == 1) {
ifp->if_flags |= IFF_OACTIVE;
return;
}
bcopy(sc->tulip_setupdata, sc->tulip_setupbuf,
sizeof(sc->tulip_setupbuf));
sc->tulip_flags &= ~TULIP_WANTSETUP;
sc->tulip_flags |= TULIP_DOINGSETUP;
ri->ri_free--;
ri->ri_nextout->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN;
ri->ri_nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG|TULIP_DFLAG_TxLASTSEG
|TULIP_DFLAG_TxSETUPPKT|TULIP_DFLAG_TxWANTINTR;
if (sc->tulip_flags & TULIP_WANTHASH)
ri->ri_nextout->d_flag |= TULIP_DFLAG_TxHASHFILT;
ri->ri_nextout->d_length1 = sizeof(sc->tulip_setupbuf);
ri->ri_nextout->d_addr1 = vtophys(sc->tulip_setupbuf);
ri->ri_nextout->d_length2 = 0;
ri->ri_nextout->d_addr2 = 0;
ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
TULIP_WRITE_CSR(sc, csr_txpoll, 1);
/*
* Advance the ring for the next transmit packet.
*/
if (++ri->ri_nextout == ri->ri_last)
ri->ri_nextout = ri->ri_first;
/*
* Make sure the next descriptor is owned by us since it
* may have been set up above if we ran out of room in the
* ring.
*/
ri->ri_nextout->d_status = 0;
}
IF_DEQUEUE(ifq, m);
if (m == NULL)
break;
/*
* Now we try to fill in our transmit descriptors. This is
* a bit reminiscent of going on the Ark two by two
* since each descriptor for the TULIP can describe
* two buffers. So we advance through packet filling
* each of the two entries at a time to to fill each
* descriptor. Clear the first and last segment bits
* in each descriptor (actually just clear everything
* but the end-of-ring or chain bits) to make sure
* we don't get messed up by previously sent packets.
*
* We may fail to put the entire packet on the ring if
* there is either not enough ring entries free or if the
* packet has more than MAX_TXSEG segments. In the former
* case we will just wait for the ring to empty. In the
* latter case we have to recopy.
*/
d_status = 0;
recopy = 0;
eop = nextout = ri->ri_nextout;
m0 = m;
segcnt = 0;
free = ri->ri_free;
do {
int len = m0->m_len;
caddr_t addr = mtod(m0, caddr_t);
unsigned clsize = PAGE_SIZE - (((u_long) addr) & PAGE_MASK);
next_m0 = m0->m_next;
while (len > 0) {
unsigned slen = min(len, clsize);
segcnt++;
if (segcnt > TULIP_MAX_TXSEG) {
recopy = 1;
next_m0 = NULL; /* to break out of outside loop */
break;
}
if (segcnt & 1) {
if (--free == 0) {
/*
* There's no more room but since nothing
* has been committed at this point, just
* show output is active, put back the
* mbuf and return.
*/
ifp->if_flags |= IFF_OACTIVE;
IF_PREPEND(ifq, m);
return;
}
eop = nextout;
if (++nextout == ri->ri_last)
nextout = ri->ri_first;
eop->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN;
eop->d_status = d_status;
eop->d_addr1 = vtophys(addr); eop->d_length1 = slen;
} else {
/*
* Fill in second half of descriptor
*/
eop->d_addr2 = vtophys(addr); eop->d_length2 = slen;
}
d_status = TULIP_DSTS_OWNER;
len -= slen;
addr += slen;
clsize = PAGE_SIZE;
}
} while ((m0 = next_m0) != NULL);
/*
* The packet exceeds the number of transmit buffer
* entries that we can use for one packet, so we have
* recopy it into one mbuf and then try again.
*/
if (recopy) {
MGETHDR(m0, M_DONTWAIT, MT_DATA);
if (m0 != NULL) {
if (m->m_pkthdr.len > MHLEN) {
MCLGET(m0, M_DONTWAIT);
if ((m0->m_flags & M_EXT) == 0) {
m_freem(m);
m_freem(m0);
continue;
}
}
m_copydata(m, 0, m->m_pkthdr.len, mtod(m0, caddr_t));
m0->m_pkthdr.len = m0->m_len = m->m_pkthdr.len;
IF_PREPEND(ifq, m0);
}
m_freem(m);
continue;
}
/*
* The descriptors have been filled in. Now get ready
* to transmit.
*/
#if NBPFILTER > 0
if (sc->tulip_bpf != NULL)
bpf_mtap(ifp, m);
#endif
IF_ENQUEUE(&sc->tulip_txq, m);
/*
* Make sure the next descriptor after this packet is owned
* by us since it may have been set up above if we ran out
* of room in the ring.
*/
nextout->d_status = 0;
/*
* If we only used the first segment of the last descriptor,
* make sure the second segment will not be used.
*/
if (segcnt & 1) {
eop->d_addr2 = 0;
eop->d_length2 = 0;
}
/*
* Mark the last and first segments, indicate we want a transmit
* complete interrupt, give the descriptors to the TULIP, and tell
* it to transmit!
*/
eop->d_flag |= TULIP_DFLAG_TxLASTSEG|TULIP_DFLAG_TxWANTINTR;
/*
* Note that ri->ri_nextout is still the start of the packet
* and until we set the OWNER bit, we can still back out of
* everything we have done.
*/
ri->ri_nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG;
ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
/*
* This advances the ring for us.
*/
ri->ri_nextout = nextout;
ri->ri_free = free;
TULIP_WRITE_CSR(sc, csr_txpoll, 1);
}
if (m != NULL) {
ifp->if_flags |= IFF_OACTIVE;
IF_PREPEND(ifq, m);
}
}
static void
tulip_intr(
void *arg)
{
tulip_softc_t * sc = (tulip_softc_t *) arg;
tulip_uint32_t csr;
#if defined(__bsdi__)
int progress = 1;
#else
int progress = 0;
#endif
do {
while ((csr = TULIP_READ_CSR(sc, csr_status)) & (TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR)) {
progress = 1;
TULIP_WRITE_CSR(sc, csr_status, csr & sc->tulip_intrmask);
if (csr & TULIP_STS_SYSERROR) {
if ((csr & TULIP_STS_ERRORMASK) == TULIP_STS_ERR_PARITY) {
tulip_reset(sc);
tulip_init(sc);
break;
}
}
if (csr & (TULIP_STS_GPTIMEOUT|TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL)) {
if (sc->tulip_chipid == TULIP_DC21041) {
(*sc->tulip_boardsw->bd_media_select)(sc);
if (csr & (TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL))
csr &= ~TULIP_STS_ABNRMLINTR;
}
}
if (csr & TULIP_STS_ABNRMLINTR) {
printf("%s%d: abnormal interrupt: 0x%05x [0x%05x]\n",
sc->tulip_name, sc->tulip_unit, csr, csr & sc->tulip_intrmask);
TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
}
if (csr & TULIP_STS_RXINTR)
tulip_rx_intr(sc);
if (sc->tulip_txinfo.ri_free < sc->tulip_txinfo.ri_max) {
tulip_tx_intr(sc);
tulip_start(&sc->tulip_if);
}
}
} while ((sc = sc->tulip_slaves) != NULL);
}
/*
*
*/
static void
tulip_delay_300ns(
tulip_softc_t * const sc)
{
TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
}
#define EMIT do { TULIP_WRITE_CSR(sc, csr_srom_mii, csr); tulip_delay_300ns(sc); } while (0)
static void
tulip_idle_srom(
tulip_softc_t * const sc)
{
unsigned bit, csr;
csr = SROMSEL | SROMRD; EMIT;
csr ^= SROMCS; EMIT;
csr ^= SROMCLKON; EMIT;
/*
* Write 25 cycles of 0 which will force the SROM to be idle.
*/
for (bit = 3 + SROM_BITWIDTH + 16; bit > 0; bit--) {
csr ^= SROMCLKOFF; EMIT; /* clock low; data not valid */
csr ^= SROMCLKON; EMIT; /* clock high; data valid */
}
csr ^= SROMCLKOFF; EMIT;
csr ^= SROMCS; EMIT; EMIT;
csr = 0; EMIT;
}
static void
tulip_read_srom(
tulip_softc_t * const sc)
{
int idx;
const unsigned bitwidth = SROM_BITWIDTH;
const unsigned cmdmask = (SROMCMD_RD << bitwidth);
const unsigned msb = 1 << (bitwidth + 3 - 1);
unsigned lastidx = (1 << bitwidth) - 1;
tulip_idle_srom(sc);
for (idx = 0; idx <= lastidx; idx++) {
unsigned lastbit, data, bits, bit, csr;
csr = SROMSEL | SROMRD; EMIT;
csr ^= SROMCSON; EMIT;
csr ^= SROMCLKON; EMIT;
lastbit = 0;
for (bits = idx|cmdmask, bit = bitwidth + 3; bit > 0; bit--, bits <<= 1) {
const unsigned thisbit = bits & msb;
csr ^= SROMCLKOFF; EMIT; /* clock low; data not valid */
if (thisbit != lastbit) {
csr ^= SROMDOUT; EMIT; /* clock low; invert data */
}
csr ^= SROMCLKON; EMIT; /* clock high; data valid */
lastbit = thisbit;
}
csr ^= SROMCLKOFF; EMIT;
for (data = 0, bits = 0; bits < 16; bits++) {
data <<= 1;
csr ^= SROMCLKON; EMIT; /* clock high; data valid */
data |= TULIP_READ_CSR(sc, csr_srom_mii) & SROMDIN ? 1 : 0;
csr ^= SROMCLKOFF; EMIT; /* clock low; data not valid */
}
sc->tulip_rombuf[idx*2] = data & 0xFF;
sc->tulip_rombuf[idx*2+1] = data >> 8;
csr = SROMSEL | SROMRD; EMIT;
csr = 0; EMIT;
}
}
#define tulip_mchash(mca) (tulip_crc32(mca, 6) & 0x1FF)
#define tulip_srom_crcok(databuf) ( \
((tulip_crc32(databuf, 126) & 0xFFFF) ^ 0xFFFF)== \
((databuf)[126] | ((databuf)[127] << 8)))
static unsigned
tulip_crc32(
const unsigned char *databuf,
size_t datalen)
{
u_int idx, bit, data, crc = 0xFFFFFFFFUL;
for (idx = 0; idx < datalen; idx++)
for (data = *databuf++, bit = 0; bit < 8; bit++, data >>= 1)
crc = (crc >> 1) ^ (((crc ^ data) & 1) ? TULIP_CRC32_POLY : 0);
return crc;
}
/*
* This deals with the vagaries of the address roms and the
* brain-deadness that various vendors commit in using them.
*/
static int
tulip_read_macaddr(
tulip_softc_t *sc)
{
int cksum, rom_cksum, idx;
tulip_uint32_t csr;
unsigned char tmpbuf[8];
static const u_char testpat[] = { 0xFF, 0, 0x55, 0xAA, 0xFF, 0, 0x55, 0xAA };
if (sc->tulip_chipid == TULIP_DC21040) {
TULIP_WRITE_CSR(sc, csr_enetrom, 1);
for (idx = 0; idx < 32; idx++) {
int cnt = 0;
while (((csr = TULIP_READ_CSR(sc, csr_enetrom)) & 0x80000000L) && cnt < 10000)
cnt++;
sc->tulip_rombuf[idx] = csr & 0xFF;
}
sc->tulip_boardsw = &tulip_dc21040_boardsw;
#if defined(TULIP_EISA)
} else if (sc->tulip_chipid == TULIP_DE425) {
int cnt;
for (idx = 0, cnt = 0; idx < sizeof(testpat) && cnt < 32; cnt++) {
tmpbuf[idx] = TULIP_READ_CSRBYTE(sc, csr_enetrom);
if (tmpbuf[idx] == testpat[idx])
++idx;
else
idx = 0;
}
for (idx = 0; idx < 32; idx++)
sc->tulip_rombuf[idx] = TULIP_READ_CSRBYTE(sc, csr_enetrom);
sc->tulip_boardsw = &tulip_dc21040_boardsw;
#endif /* TULIP_EISA */
} else {
int new_srom_fmt = 0;
/*
* Assume all DC21140 board are compatible with the
* DEC 10/100 evaluation board. Not really valid but
* it's the best we can do until every one switches to
* the new SROM format.
*/
if (sc->tulip_chipid == TULIP_DC21140)
sc->tulip_boardsw = &tulip_dc21140_eb_boardsw;
/*
* Thankfully all DC21041's act the same.
*/
if (sc->tulip_chipid == TULIP_DC21041)
sc->tulip_boardsw = &tulip_dc21041_boardsw;
tulip_read_srom(sc);
if (tulip_srom_crcok(sc->tulip_rombuf)) {
/*
* SROM CRC is valid therefore it must be in the
* new format.
*/
new_srom_fmt = 1;
} else if (sc->tulip_rombuf[126] == 0xff && sc->tulip_rombuf[127] == 0xFF) {
/*
* No checksum is present. See if the SROM id checks out;
* the first 18 bytes should be 0 followed by a 1 followed
* by the number of adapters (which we don't deal with yet).
*/
for (idx = 0; idx < 18; idx++) {
if (sc->tulip_rombuf[idx] != 0)
break;
}
if (idx == 18 && sc->tulip_rombuf[18] == 1 && sc->tulip_rombuf[19] != 0)
new_srom_fmt = 2;
}
if (new_srom_fmt) {
/*
* New SROM format. Copy out the Ethernet address.
* If it contains a DE500-XA string, then it must be
* a DE500-XA.
*/
bcopy(sc->tulip_rombuf + 20, sc->tulip_hwaddr, 6);
if (bcmp(sc->tulip_rombuf + 29, "DE500-XA", 8) == 0)
sc->tulip_boardsw = &tulip_dc21140_de500_boardsw;
if (bcmp(sc->tulip_rombuf + 29, "DE450", 5) == 0)
sc->tulip_boardsw = &tulip_dc21041_de450_boardsw;
if (sc->tulip_boardsw == NULL)
return -6;
sc->tulip_flags |= TULIP_ROMOK;
return 0;
}
}
if (bcmp(&sc->tulip_rombuf[0], &sc->tulip_rombuf[16], 8) != 0) {
/*
* Some folks don't use the standard ethernet rom format
* but instead just put the address in the first 6 bytes
* of the rom and let the rest be all 0xffs. (Can we say
* ZNYX???)
*/
for (idx = 6; idx < 32; idx++) {
if (sc->tulip_rombuf[idx] != 0xFF)
return -4;
}
/*
* Make sure the address is not multicast or locally assigned
* that the OUI is not 00-00-00.
*/
if ((sc->tulip_rombuf[0] & 3) != 0)
return -4;
if (sc->tulip_rombuf[0] == 0 && sc->tulip_rombuf[1] == 0
&& sc->tulip_rombuf[2] == 0)
return -4;
bcopy(sc->tulip_rombuf, sc->tulip_hwaddr, 6);
sc->tulip_flags |= TULIP_ROMOK;
if (sc->tulip_hwaddr[0] == TULIP_OUI_ZNYX_0
&& sc->tulip_hwaddr[1] == TULIP_OUI_ZNYX_1
&& sc->tulip_hwaddr[2] == TULIP_OUI_ZNYX_2
&& (sc->tulip_hwaddr[3] & ~3) == 0xF0) {
/*
* Now if the OUI is ZNYX and hwaddr[3] == 0xF0 .. 0xF3
* then it's a ZX314 Master port.
*/
sc->tulip_boardsw = &tulip_dc21040_zx314_master_boardsw;
}
return 0;
} else {
/*
* A number of makers of multiport boards (ZNYX and Cogent)
* only put on one address ROM on their DC21040 boards. So
* if the ROM is all zeros and this is a DC21040, look at the
* previous configured boards (as long as they are on the same
* PCI bus and the bus number is non-zero) until we find the
* master board with address ROM. We then use its address ROM
* as the base for this board. (we add our relative board
* to the last byte of its address).
*/
if (sc->tulip_chipid == TULIP_DC21040 /* && sc->tulip_bus != 0 XXX */) {
for (idx = 0; idx < 32; idx++) {
if (sc->tulip_rombuf[idx] != 0)
break;
}
if (idx == 32) {
int root_unit;
tulip_softc_t *root_sc = NULL;
for (root_unit = sc->tulip_unit - 1; root_unit >= 0; root_unit--) {
root_sc = TULIP_UNIT_TO_SOFTC(root_unit);
if (root_sc == NULL || (root_sc->tulip_flags & (TULIP_ROMOK|TULIP_SLAVEDROM)) == TULIP_ROMOK)
break;
root_sc = NULL;
}
if (root_sc != NULL
/* && root_sc->tulip_bus == sc->tulip_bus XXX */) {
bcopy(root_sc->tulip_hwaddr, sc->tulip_hwaddr, 6);
sc->tulip_hwaddr[5] += sc->tulip_unit - root_sc->tulip_unit;
sc->tulip_flags |= TULIP_SLAVEDROM;
if (root_sc->tulip_boardsw->bd_type == TULIP_DC21040_ZX314_MASTER) {
sc->tulip_boardsw = &tulip_dc21040_zx314_slave_boardsw;
/*
* Now for a truly disgusting kludge: all 4 DC21040s on
* the ZX314 share the same INTA line so the mapping
* setup by the BIOS on the PCI bridge is worthless.
* Rather than reprogramming the value in the config
* register, we will handle this internally.
*/
sc->tulip_slaves = root_sc->tulip_slaves;
root_sc->tulip_slaves = sc;
}
return 0;
}
}
}
}
/*
* This is the standard DEC address ROM test.
*/
if (bcmp(&sc->tulip_rombuf[24], testpat, 8) != 0)
return -3;
tmpbuf[0] = sc->tulip_rombuf[15]; tmpbuf[1] = sc->tulip_rombuf[14];
tmpbuf[2] = sc->tulip_rombuf[13]; tmpbuf[3] = sc->tulip_rombuf[12];
tmpbuf[4] = sc->tulip_rombuf[11]; tmpbuf[5] = sc->tulip_rombuf[10];
tmpbuf[6] = sc->tulip_rombuf[9]; tmpbuf[7] = sc->tulip_rombuf[8];
if (bcmp(&sc->tulip_rombuf[0], tmpbuf, 8) != 0)
return -2;
bcopy(sc->tulip_rombuf, sc->tulip_hwaddr, 6);
cksum = *(u_short *) &sc->tulip_hwaddr[0];
cksum *= 2;
if (cksum > 65535) cksum -= 65535;
cksum += *(u_short *) &sc->tulip_hwaddr[2];
if (cksum > 65535) cksum -= 65535;
cksum *= 2;
if (cksum > 65535) cksum -= 65535;
cksum += *(u_short *) &sc->tulip_hwaddr[4];
if (cksum >= 65535) cksum -= 65535;
rom_cksum = *(u_short *) &sc->tulip_rombuf[6];
if (cksum != rom_cksum)
return -1;
/*
* Check for various boards based on OUI. Did I say braindead?
*/
if (sc->tulip_chipid == TULIP_DC21140) {
if (sc->tulip_hwaddr[0] == TULIP_OUI_COGENT_0
&& sc->tulip_hwaddr[1] == TULIP_OUI_COGENT_1
&& sc->tulip_hwaddr[2] == TULIP_OUI_COGENT_2) {
if (sc->tulip_rombuf[32] == TULIP_COGENT_EM100_ID)
sc->tulip_boardsw = &tulip_dc21140_cogent_em100_boardsw;
}
if (sc->tulip_hwaddr[0] == TULIP_OUI_ZNYX_0
&& sc->tulip_hwaddr[1] == TULIP_OUI_ZNYX_1
&& sc->tulip_hwaddr[2] == TULIP_OUI_ZNYX_2) {
/* this at least works for the zx342 from Znyx */
sc->tulip_boardsw = &tulip_dc21140_znyx_zx34x_boardsw;
}
}
sc->tulip_flags |= TULIP_ROMOK;
return 0;
}
static void
tulip_addr_filter(
tulip_softc_t * const sc)
{
tulip_uint32_t *sp = sc->tulip_setupdata;
struct ether_multistep step;
struct ether_multi *enm;
int i;
sc->tulip_flags &= ~TULIP_WANTHASH;
sc->tulip_flags |= TULIP_WANTSETUP;
sc->tulip_cmdmode &= ~TULIP_CMD_RXRUN;
sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED;
if (sc->tulip_ac.ac_multicnt > 14) {
unsigned hash;
/*
* If we have more than 14 multicasts, we have
* go into hash perfect mode (512 bit multicast
* hash and one perfect hardware).
*/
bzero(sc->tulip_setupdata, sizeof(sc->tulip_setupdata));
hash = tulip_mchash(etherbroadcastaddr);
sp[hash >> 4] |= 1 << (hash & 0xF);
ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm);
while (enm != NULL) {
hash = tulip_mchash(enm->enm_addrlo);
sp[hash >> 4] |= 1 << (hash & 0xF);
ETHER_NEXT_MULTI(step, enm);
}
sc->tulip_flags |= TULIP_WANTHASH;
sp[39] = ((u_short *) sc->tulip_ac.ac_enaddr)[0];
sp[40] = ((u_short *) sc->tulip_ac.ac_enaddr)[1];
sp[41] = ((u_short *) sc->tulip_ac.ac_enaddr)[2];
} else {
/*
* Else can get perfect filtering for 16 addresses.
*/
i = 0;
ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm);
for (; enm != NULL; i++) {
*sp++ = ((u_short *) enm->enm_addrlo)[0];
*sp++ = ((u_short *) enm->enm_addrlo)[1];
*sp++ = ((u_short *) enm->enm_addrlo)[2];
ETHER_NEXT_MULTI(step, enm);
}
/*
* Add the broadcast address.
*/
i++;
*sp++ = 0xFFFF;
*sp++ = 0xFFFF;
*sp++ = 0xFFFF;
/*
* Pad the rest with our hardware address
*/
for (; i < 16; i++) {
*sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[0];
*sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[1];
*sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[2];
}
}
}
static int
tulip_ioctl(
struct ifnet * const ifp,
ioctl_cmd_t cmd,
caddr_t data)
{
tulip_softc_t * const sc = ifp->if_softc;
struct ifaddr *ifa = (struct ifaddr *)data;
struct ifreq *ifr = (struct ifreq *) data;
int s, error = 0;
s = splimp();
switch (cmd) {
case SIOCSIFADDR: {
ifp->if_flags |= IFF_UP;
switch(ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET: {
tulip_init(sc);
#if defined(__FreeBSD__) || defined(__NetBSD__)
arp_ifinit(&sc->tulip_ac, ifa);
#elif defined(__bsdi__)
sc->tulip_ac.ac_ipaddr = IA_SIN(ifa)->sin_addr;
arpwhohas(&sc->tulip_ac, &IA_SIN(ifa)->sin_addr);
#endif
break;
}
#endif /* INET */
#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 *)(sc->tulip_ac.ac_enaddr);
} else {
ifp->if_flags &= ~IFF_RUNNING;
bcopy((caddr_t)ina->x_host.c_host,
(caddr_t)sc->tulip_ac.ac_enaddr,
sizeof sc->tulip_ac.ac_enaddr);
}
tulip_init(sc);
break;
}
#endif /* NS */
default: {
tulip_init(sc);
break;
}
}
break;
}
case SIOCGIFADDR: {
bcopy((caddr_t) sc->tulip_ac.ac_enaddr,
(caddr_t) ((struct sockaddr *)&ifr->ifr_data)->sa_data,
6);
break;
}
case SIOCSIFFLAGS: {
/*
* Changing the connection forces a reset.
*/
if (sc->tulip_flags & TULIP_ALTPHYS) {
if ((ifp->if_flags & IFF_ALTPHYS) == 0)
tulip_reset(sc);
} else {
if (ifp->if_flags & IFF_ALTPHYS)
tulip_reset(sc);
}
tulip_init(sc);
break;
}
case SIOCADDMULTI:
case SIOCDELMULTI: {
/*
* Update multicast listeners
*/
if (cmd == SIOCADDMULTI)
error = ether_addmulti(ifr, &sc->tulip_ac);
else
error = ether_delmulti(ifr, &sc->tulip_ac);
if (error == ENETRESET) {
tulip_addr_filter(sc); /* reset multicast filtering */
tulip_init(sc);
error = 0;
}
break;
}
#if defined(SIOCSIFMTU)
#if !defined(ifr_mtu)
#define ifr_mtu ifr_metric
#endif
case SIOCSIFMTU:
/*
* Set the interface MTU.
*/
if (ifr->ifr_mtu > ETHERMTU) {
error = EINVAL;
break;
}
ifp->if_mtu = ifr->ifr_mtu;
break;
#endif
default: {
error = EINVAL;
break;
}
}
splx(s);
return error;
}
static void
tulip_attach(
tulip_softc_t * const sc)
{
struct ifnet * const ifp = &sc->tulip_if;
ifp->if_softc = sc;
ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST;
ifp->if_ioctl = tulip_ioctl;
ifp->if_output = ether_output;
ifp->if_start = tulip_start;
#ifdef __FreeBSD__
printf("%s%d", sc->tulip_name, sc->tulip_unit);
#endif
printf(": %s%s pass %d.%d Ethernet address %6D\n",
sc->tulip_boardsw->bd_description,
tulip_chipdescs[sc->tulip_chipid],
(sc->tulip_revinfo & 0xF0) >> 4,
sc->tulip_revinfo & 0x0F,
sc->tulip_hwaddr, ":");
if ((*sc->tulip_boardsw->bd_media_probe)(sc)) {
ifp->if_flags |= IFF_ALTPHYS;
} else {
sc->tulip_flags |= TULIP_ALTPHYS;
}
tulip_reset(sc);
if_attach(ifp);
ether_ifattach(ifp);
#if NBPFILTER > 0
bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header));
#endif
}
static void
tulip_initcsrs(
tulip_softc_t * const sc,
tulip_csrptr_t csr_base,
size_t csr_size)
{
sc->tulip_csrs.csr_busmode = csr_base + 0 * csr_size;
sc->tulip_csrs.csr_txpoll = csr_base + 1 * csr_size;
sc->tulip_csrs.csr_rxpoll = csr_base + 2 * csr_size;
sc->tulip_csrs.csr_rxlist = csr_base + 3 * csr_size;
sc->tulip_csrs.csr_txlist = csr_base + 4 * csr_size;
sc->tulip_csrs.csr_status = csr_base + 5 * csr_size;
sc->tulip_csrs.csr_command = csr_base + 6 * csr_size;
sc->tulip_csrs.csr_intr = csr_base + 7 * csr_size;
sc->tulip_csrs.csr_missed_frame = csr_base + 8 * csr_size;
if (sc->tulip_chipid == TULIP_DC21040) {
sc->tulip_csrs.csr_enetrom = csr_base + 9 * csr_size;
sc->tulip_csrs.csr_reserved = csr_base + 10 * csr_size;
sc->tulip_csrs.csr_full_duplex = csr_base + 11 * csr_size;
sc->tulip_csrs.csr_sia_status = csr_base + 12 * csr_size;
sc->tulip_csrs.csr_sia_connectivity = csr_base + 13 * csr_size;
sc->tulip_csrs.csr_sia_tx_rx = csr_base + 14 * csr_size;
sc->tulip_csrs.csr_sia_general = csr_base + 15 * csr_size;
#if defined(TULIP_EISA)
} else if (sc->tulip_chipid == TULIP_DE425) {
sc->tulip_csrs.csr_enetrom = csr_base + DE425_ENETROM_OFFSET;
sc->tulip_csrs.csr_reserved = csr_base + 10 * csr_size;
sc->tulip_csrs.csr_full_duplex = csr_base + 11 * csr_size;
sc->tulip_csrs.csr_sia_status = csr_base + 12 * csr_size;
sc->tulip_csrs.csr_sia_connectivity = csr_base + 13 * csr_size;
sc->tulip_csrs.csr_sia_tx_rx = csr_base + 14 * csr_size;
sc->tulip_csrs.csr_sia_general = csr_base + 15 * csr_size;
#endif /* TULIP_EISA */
} else if (sc->tulip_chipid == TULIP_DC21140) {
sc->tulip_csrs.csr_srom_mii = csr_base + 9 * csr_size;
sc->tulip_csrs.csr_gp_timer = csr_base + 11 * csr_size;
sc->tulip_csrs.csr_gp = csr_base + 12 * csr_size;
sc->tulip_csrs.csr_watchdog = csr_base + 15 * csr_size;
} else if (sc->tulip_chipid == TULIP_DC21041) {
sc->tulip_csrs.csr_srom_mii = csr_base + 9 * csr_size;
sc->tulip_csrs.csr_bootrom = csr_base + 10 * csr_size;
sc->tulip_csrs.csr_gp_timer = csr_base + 11 * csr_size;
sc->tulip_csrs.csr_sia_status = csr_base + 12 * csr_size;
sc->tulip_csrs.csr_sia_connectivity = csr_base + 13 * csr_size;
sc->tulip_csrs.csr_sia_tx_rx = csr_base + 14 * csr_size;
sc->tulip_csrs.csr_sia_general = csr_base + 15 * csr_size;
}
}
static void
tulip_initring(
tulip_softc_t * const sc,
tulip_ringinfo_t * const ri,
tulip_desc_t *descs,
int ndescs)
{
ri->ri_max = ndescs;
ri->ri_first = descs;
ri->ri_last = ri->ri_first + ri->ri_max;
bzero((caddr_t) ri->ri_first, sizeof(ri->ri_first[0]) * ri->ri_max);
ri->ri_last[-1].d_flag = TULIP_DFLAG_ENDRING;
}
/*
* This is the PCI configuration support. Since the DC21040 is available
* on both EISA and PCI boards, one must be careful in how defines the
* DC21040 in the config file.
*/
#define PCI_CFID 0x00 /* Configuration ID */
#define PCI_CFCS 0x04 /* Configurtion Command/Status */
#define PCI_CFRV 0x08 /* Configuration Revision */
#define PCI_CFLT 0x0c /* Configuration Latency Timer */
#define PCI_CBIO 0x10 /* Configuration Base IO Address */
#define PCI_CBMA 0x14 /* Configuration Base Memory Address */
#define PCI_CFIT 0x3c /* Configuration Interrupt */
#define PCI_CFDA 0x40 /* Configuration Driver Area */
#if defined(TULIP_EISA)
static const int tulip_eisa_irqs[4] = { IRQ5, IRQ9, IRQ10, IRQ11 };
#endif
#if defined(__FreeBSD__)
#define TULIP_PCI_ATTACH_ARGS pcici_t config_id, int unit
static int
tulip_pci_shutdown(
struct kern_devconf * const kdc,
int force)
{
if (kdc->kdc_unit < NDE) {
tulip_softc_t * const sc = TULIP_UNIT_TO_SOFTC(kdc->kdc_unit);
TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at
33MHz that comes to two microseconds but wait a
bit longer anyways) */
}
(void) dev_detach(kdc);
return 0;
}
static char*
tulip_pci_probe(
pcici_t config_id,
pcidi_t device_id)
{
if (PCI_VENDORID(device_id) != DEC_VENDORID)
return NULL;
if (PCI_CHIPID(device_id) == DC21040_CHIPID)
return "Digital DC21040 Ethernet";
if (PCI_CHIPID(device_id) == DC21041_CHIPID)
return "Digital DC21041 Ethernet";
if (PCI_CHIPID(device_id) == DC21140_CHIPID)
return "Digital DC21140 Fast Ethernet";
return NULL;
}
static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS);
static u_long tulip_pci_count;
static struct pci_device dedevice = {
"de",
tulip_pci_probe,
tulip_pci_attach,
&tulip_pci_count,
tulip_pci_shutdown,
};
DATA_SET (pcidevice_set, dedevice);
#endif /* __FreeBSD__ */
#if defined(__bsdi__)
#define TULIP_PCI_ATTACH_ARGS struct device * const parent, struct device * const self, void * const aux
static void
tulip_shutdown(
void *arg)
{
tulip_softc_t * const sc = (tulip_softc_t *) arg;
TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at
33MHz that comes to two microseconds but wait a
bit longer anyways) */
}
static int
tulip_pci_match(
pci_devaddr_t *pa)
{
int irq;
unsigned id;
id = pci_inl(pa, PCI_VENDOR_ID);
if (PCI_VENDORID(id) != DEC_VENDORID)
return 0;
id = PCI_CHIPID(id);
if (id != DC21040_CHIPID && id != DC21041_CHIPID && id != DC21140_CHIPID)
return 0;
irq = pci_inl(pa, PCI_I_LINE) & 0xFF;
if (irq == 0 || irq >= 16) {
printf("de?: invalid IRQ %d; skipping\n", irq);
return 0;
}
return 1;
}
static int
tulip_probe(
struct device *parent,
struct cfdata *cf,
void *aux)
{
struct isa_attach_args * const ia = (struct isa_attach_args *) aux;
unsigned irq, slot;
pci_devaddr_t *pa;
#if defined(TULIP_EISA)
if ((slot = eisa_match(cf, ia)) != 0) {
unsigned tmp;
ia->ia_iobase = slot << 12;
ia->ia_iosize = EISA_NPORT;
eisa_slotalloc(slot);
tmp = inb(ia->ia_iobase + DE425_CFG0);
irq = tulip_eisa_irqs[(tmp >> 1) & 0x03];
/*
* Until BSD/OS likes level interrupts, force
* the DE425 into edge-triggered mode.
*/
if ((tmp & 1) == 0)
outb(ia->ia_iobase + DE425_CFG0, tmp | 1);
/*
* CBIO needs to map to the EISA slot
* enable I/O access and Master
*/
outl(ia->ia_iobase + DE425_CBIO, ia->ia_iobase);
outl(ia->ia_iobase + DE425_CFCS, 5 | inl(ia->ia_iobase + DE425_CFCS));
ia->ia_aux = NULL;
} else {
#endif /* TULIP_EISA */
pa = pci_scan(tulip_pci_match);
if (pa == NULL)
return 0;
irq = (1 << (pci_inl(pa, PCI_I_LINE) & 0xFF));
/* Get the base address; assume the BIOS set it up correctly */
#if defined(TULIP_IOMAPPED)
ia->ia_maddr = NULL;
ia->ia_msize = 0;
ia->ia_iobase = pci_inl(pa, PCI_CBIO) & ~7;
pci_outl(pa, PCI_CBIO, 0xFFFFFFFF);
ia->ia_iosize = ((~pci_inl(pa, PCI_CBIO)) | 7) + 1;
pci_outl(pa, PCI_CBIO, (int) ia->ia_iobase);
/* Disable memory space access */
pci_outl(pa, PCI_COMMAND, pci_inl(pa, PCI_COMMAND) & ~2);
#else
ia->ia_maddr = (caddr_t) (pci_inl(pa, PCI_CBMA) & ~7);
pci_outl(pa, PCI_CBMA, 0xFFFFFFFF);
ia->ia_msize = ((~pci_inl(pa, PCI_CBMA)) | 7) + 1;
pci_outl(pa, PCI_CBMA, (int) ia->ia_maddr);
ia->ia_iobase = 0;
ia->ia_iosize = 0;
/* Disable I/O space access */
pci_outl(pa, PCI_COMMAND, pci_inl(pa, PCI_COMMAND) & ~1);
#endif /* TULIP_IOMAPPED */
ia->ia_aux = (void *) pa;
#if defined(TULIP_EISA)
}
#endif
/* PCI bus masters don't use host DMA channels */
ia->ia_drq = DRQNONE;
if (ia->ia_irq != IRQUNK && irq != ia->ia_irq) {
printf("de%d: error: desired IRQ of %d does not match device's actual IRQ of %d,\n",
cf->cf_unit,
ffs(ia->ia_irq) - 1, ffs(irq) - 1);
return 0;
}
if (ia->ia_irq == IRQUNK && (ia->ia_irq = isa_irqalloc(irq)) == 0) {
printf("de%d: warning: IRQ %d is shared\n", cf->cf_unit, ffs(irq) - 1);
ia->ia_irq = irq;
}
return 1;
}
static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS);
#if defined(TULIP_EISA)
static char *tulip_eisa_ids[] = {
"DEC4250",
NULL
};
#endif
struct cfdriver decd = {
0, "de", tulip_probe, tulip_pci_attach, DV_IFNET, sizeof(tulip_softc_t),
#if defined(TULIP_EISA)
tulip_eisa_ids
#endif
};
#endif /* __bsdi__ */
#if defined(__NetBSD__)
#define TULIP_PCI_ATTACH_ARGS struct device * const parent, struct device * const self, void * const aux
static void
tulip_pci_shutdown(
void *arg)
{
tulip_softc_t * const sc = (tulip_softc_t *) arg;
TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at
33MHz that comes to two microseconds but wait a
bit longer anyways) */
}
static int
tulip_pci_probe(
struct device *parent,
void *match,
void *aux)
{
struct pci_attach_args *pa = (struct pci_attach_args *) aux;
if (PCI_VENDORID(pa->pa_id) != DEC_VENDORID)
return 0;
if (PCI_CHIPID(pa->pa_id) == DC21040_CHIPID
|| PCI_CHIPID(pa->pa_id) == DC21041_CHIPID
|| PCI_CHIPID(pa->pa_id) == DC21140_CHIPID)
return 1;
return 0;
}
static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS);
struct cfdriver decd = {
0, "de", tulip_pci_probe, tulip_pci_attach, DV_IFNET, sizeof(tulip_softc_t)
};
#endif /* __NetBSD__ */
static void
tulip_pci_attach(
TULIP_PCI_ATTACH_ARGS)
{
#if defined(__FreeBSD__)
tulip_softc_t *sc;
#endif
#if defined(__bsdi__)
tulip_softc_t * const sc = (tulip_softc_t *) self;
struct isa_attach_args * const ia = (struct isa_attach_args *) aux;
pci_devaddr_t *pa = (pci_devaddr_t *) ia->ia_aux;
int unit = sc->tulip_dev.dv_unit;
#endif
#if defined(__NetBSD__)
tulip_softc_t * const sc = (tulip_softc_t *) self;
struct pci_attach_args * const pa = (struct pci_attach_args *) aux;
int unit = sc->tulip_dev.dv_unit;
#endif
int retval, idx, revinfo, id;
#if !defined(TULIP_IOMAPPED) && !defined(__bsdi__)
vm_offset_t pa_csrs;
#endif
unsigned csroffset = TULIP_PCI_CSROFFSET;
unsigned csrsize = TULIP_PCI_CSRSIZE;
tulip_csrptr_t csr_base;
tulip_desc_t *rxdescs, *txdescs;
tulip_chipid_t chipid = TULIP_CHIPID_UNKNOWN;
#if defined(__FreeBSD__)
if (unit >= NDE) {
printf("de%d: not configured; kernel is built for only %d device%s.\n",
unit, NDE, NDE == 1 ? "" : "s");
return;
}
#endif
#if defined(__FreeBSD__)
revinfo = pci_conf_read(config_id, PCI_CFRV) & 0xFF;
id = pci_conf_read(config_id, PCI_CFID);
#endif
#if defined(__bsdi__)
if (pa != NULL) {
revinfo = pci_inl(pa, PCI_CFRV) & 0xFF;
id = pci_inl(pa, PCI_CFID);
#if defined(TULIP_EISA)
} else {
revinfo = inl(ia->ia_iobase + DE425_CFRV) & 0xFF;
csroffset = TULIP_EISA_CSROFFSET;
csrsize = TULIP_EISA_CSRSIZE;
chipid = TULIP_DE425;
#endif
}
#endif
#if defined(__NetBSD__)
revinfo = pci_conf_read(pa->pa_tag, PCI_CFRV) & 0xFF;
id = pa->pa_id;
#endif
if (PCI_VENDORID(id) == DEC_VENDORID) {
if (PCI_CHIPID(id) == DC21040_CHIPID) chipid = TULIP_DC21040;
else if (PCI_CHIPID(id) == DC21140_CHIPID) chipid = TULIP_DC21140;
else if (PCI_CHIPID(id) == DC21041_CHIPID) chipid = TULIP_DC21041;
}
if (chipid == TULIP_CHIPID_UNKNOWN)
return;
if ((chipid == TULIP_DC21040 || chipid == TULIP_DE425) && revinfo < 0x20) {
#ifdef __FreeBSD__
printf("de%d", unit);
#endif
printf(": not configured; DC21040 pass 2.0 required (%d.%d found)\n",
revinfo >> 4, revinfo & 0x0f);
return;
} else if (chipid == TULIP_DC21140 && revinfo < 0x11) {
#ifdef __FreeBSD__
printf("de%d", unit);
#endif
printf(": not configured; DC21140 pass 1.1 required (%d.%d found)\n",
revinfo >> 4, revinfo & 0x0f);
return;
}
#if defined(__FreeBSD__)
sc = (tulip_softc_t *) malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT);
if (sc == NULL)
return;
bzero(sc, sizeof(*sc)); /* Zero out the softc*/
#endif
rxdescs = (tulip_desc_t *)
malloc(sizeof(tulip_desc_t) * TULIP_RXDESCS, M_DEVBUF, M_NOWAIT);
if (rxdescs == NULL) {
#if defined(__FreeBSD__)
free((caddr_t) sc, M_DEVBUF);
#endif
return;
}
txdescs = (tulip_desc_t *)
malloc(sizeof(tulip_desc_t) * TULIP_TXDESCS, M_DEVBUF, M_NOWAIT);
if (txdescs == NULL) {
free((caddr_t) rxdescs, M_DEVBUF);
#if defined(__FreeBSD__)
free((caddr_t) sc, M_DEVBUF);
#endif
return;
}
sc->tulip_chipid = chipid;
sc->tulip_unit = unit;
sc->tulip_name = "de";
sc->tulip_revinfo = revinfo;
#if defined(__FreeBSD__)
#if defined(TULIP_IOMAPPED)
retval = pci_map_port(config_id, PCI_CBIO, &csr_base);
#else
retval = pci_map_mem(config_id, PCI_CBMA, (vm_offset_t *) &csr_base, &pa_csrs);
#endif
if (!retval) {
free((caddr_t) txdescs, M_DEVBUF);
free((caddr_t) rxdescs, M_DEVBUF);
free((caddr_t) sc, M_DEVBUF);
return;
}
tulips[unit] = sc;
#endif /* __FreeBSD__ */
#if defined(__bsdi__)
#if defined(TULIP_IOMAPPED)
csr_base = ia->ia_iobase;
#else
csr_base = (vm_offset_t) mapphys((vm_offset_t) ia->ia_maddr, ia->ia_msize);
#endif
#endif /* __bsdi__ */
#if defined(__NetBSD__)
#if defined(TULIP_IOMAPPED)
retval = pci_map_io(pa->pa_tag, PCI_CBIO, &csr_base);
#else
retval = pci_map_mem(pa->pa_tag, PCI_CBMA, (vm_offset_t *) &csr_base, &pa_csrs);
#endif
if (retval) {
free((caddr_t) txdescs, M_DEVBUF);
free((caddr_t) rxdescs, M_DEVBUF);
return;
}
#endif /* __NetBSD__ */
tulip_initcsrs(sc, csr_base + csroffset, csrsize);
tulip_initring(sc, &sc->tulip_rxinfo, rxdescs, TULIP_RXDESCS);
tulip_initring(sc, &sc->tulip_txinfo, txdescs, TULIP_TXDESCS);
if ((retval = tulip_read_macaddr(sc)) < 0) {
#ifdef __FreeBSD__
printf("%s%d", sc->tulip_name, sc->tulip_unit);
#endif
printf(": can't read ENET ROM (why=%d) (", retval);
for (idx = 0; idx < 32; idx++)
printf("%02x", sc->tulip_rombuf[idx]);
printf("\n");
printf("%s%d: %s%s pass %d.%d Ethernet address %s\n",
sc->tulip_name, sc->tulip_unit,
(sc->tulip_boardsw != NULL ? sc->tulip_boardsw->bd_description : ""),
tulip_chipdescs[sc->tulip_chipid],
(sc->tulip_revinfo & 0xF0) >> 4, sc->tulip_revinfo & 0x0F,
"unknown");
} else {
/*
* Make sure there won't be any interrupts or such...
*/
TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at
33MHz that comes to two microseconds but wait a
bit longer anyways) */
#if defined(__NetBSD__)
if (sc->tulip_boardsw->bd_type != TULIP_DC21040_ZX314_SLAVE) {
sc->tulip_ih = pci_map_int(pa->pa_tag, PCI_IPL_NET, tulip_intr, sc);
if (sc->tulip_ih == NULL) {
printf("%s%d: couldn't map interrupt\n",
sc->tulip_name, sc->tulip_unit);
return;
}
#if defined(__i386__)
/* gross but netbsd won't print the irq otherwise */
printf(" irq %d", ((struct intrhand *) sc->tulip_ih)->ih_irq);
#endif
}
sc->tulip_ats = shutdownhook_establish(tulip_pci_shutdown, sc);
if (sc->tulip_ats == NULL)
printf("%s%d: warning: couldn't establish shutdown hook\n",
sc->tulip_name, sc->tulip_unit);
#endif
#if defined(__FreeBSD__)
if (sc->tulip_boardsw->bd_type != TULIP_DC21040_ZX314_SLAVE) {
if (!pci_map_int(config_id, tulip_intr, (void*) sc, &net_imask)) {
printf("%s%d: couldn't map interrupt\n",
sc->tulip_name, sc->tulip_unit);
return;
}
}
#endif
#if defined(__bsdi__)
if (sc->tulip_boardsw->bd_type != TULIP_DC21040_ZX314_SLAVE) {
isa_establish(&sc->tulip_id, &sc->tulip_dev);
sc->tulip_ih.ih_fun = tulip_intr;
sc->tulip_ih.ih_arg = (void *)sc;
intr_establish(ia->ia_irq, &sc->tulip_ih, DV_NET);
}
sc->tulip_ats.func = tulip_shutdown;
sc->tulip_ats.arg = (void *) sc;
atshutdown(&sc->tulip_ats, ATSH_ADD);
#endif
tulip_reset(sc);
tulip_attach(sc);
}
}
#endif /* NDE > 0 */
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