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4f02305016
freebsd/sys/pci/if_de.c
Garrett Wollman 4f02305016 Implement the 802.3 MIB in a way that uses the generic interface 
defined in if_mib.h.
1996-10-10 19:44:10 +00:00

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/*-
* Copyright (c) 1994, 1995, 1996 Matt Thomas (matt@3am-software.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 1.52 1996/09/20 04:35:15 davidg 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).
*/
#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 <machine/clock.h>
#elif defined(__bsdi__) || defined(__NetBSD__)
#include <sys/device.h>
#endif
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_mib.h>
#include <net/if_types.h>
#include <net/route.h>
#include <net/netisr.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/vm_kern.h>
#if defined(__FreeBSD__)
#include <vm/pmap.h>
#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>
#if _BSDI_VERSION < 199510
#include <eisa.h>
#else
#define NEISA 0
#endif
#if NEISA > 0 && _BSDI_VERSION >= 199401
#include <i386/eisa/eisa.h>
#define TULIP_EISA
#endif
#endif /* __bsdi__ */
#if defined(__NetBSD__)
#include <machine/bus.h>
#if defined(__alpha__)
#include <machine/intr.h>
#endif
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/ic/dc21040reg.h>
#endif /* __NetBSD__ */
/*
* Intel CPUs should use I/O mapped access.
*/
#if defined(__i386__) || defined(TULIP_EISA)
#define TULIP_IOMAPPED
#endif
#if 0
/*
* This turns on all sort of debugging stuff and make the
* driver much larger.
*/
#define TULIP_DEBUG
#endif
#if 0
#define TULIP_USE_SOFTINTR
#endif
/*
* This module supports
* the DEC DC21040 PCI Ethernet Controller.
* the DEC DC21041 PCI Ethernet Controller.
* the DEC DC21140 PCI Fast Ethernet Controller.
*/
#ifdef TULIP_IOMAPPED
#define TULIP_EISA_CSRSIZE 16
#define TULIP_EISA_CSROFFSET 0
#define TULIP_PCI_CSRSIZE 8
#define TULIP_PCI_CSROFFSET 0
#if defined(__NetBSD__)
typedef bus_io_size_t tulip_csrptr_t;
#define TULIP_CSR_READ(sc, csr) \
bus_io_read_4((sc)->tulip_bc, (sc)->tulip_ioh, (sc)->tulip_csrs.csr)
#define TULIP_CSR_WRITE(sc, csr, val) \
bus_io_write_4((sc)->tulip_bc, (sc)->tulip_ioh, (sc)->tulip_csrs.csr, (val))
#define TULIP_CSR_READBYTE(sc, csr) \
bus_io_read_1((sc)->tulip_bc, (sc)->tulip_ioh, (sc)->tulip_csrs.csr)
#define TULIP_CSR_WRITEBYTE(sc, csr, val) \
bus_io_write_1((sc)->tulip_bc, (sc)->tulip_ioh, (sc)->tulip_csrs.csr, (val))
#else
typedef tulip_uint16_t tulip_csrptr_t;
#define TULIP_CSR_READ(sc, csr) (inl((sc)->tulip_csrs.csr))
#define TULIP_CSR_WRITE(sc, csr, val) outl((sc)->tulip_csrs.csr, val)
#define TULIP_CSR_READBYTE(sc, csr) (inb((sc)->tulip_csrs.csr))
#define TULIP_CSR_WRITEBYTE(sc, csr, val) outb((sc)->tulip_csrs.csr, val)
#endif /* __NetBSD__ */
#else /* TULIP_IOMAPPED */
#define TULIP_PCI_CSRSIZE 8
#define TULIP_PCI_CSROFFSET 0
#if defined(__NetBSD__)
typedef bus_mem_size_t tulip_csrptr_t;
#define TULIP_CSR_READ(sc, csr) \
bus_mem_read_4((sc)->tulip_bc, (sc)->tulip_memh, (sc)->tulip_csrs.csr)
#define TULIP_CSR_WRITE(sc, csr, val) \
bus_mem_write_4((sc)->tulip_bc, (sc)->tulip_memh, (sc)->tulip_csrs.csr, \
(val))
#else
typedef volatile tulip_uint32_t *tulip_csrptr_t;
/*
* 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_CSR_READ(sc, csr) (0 + *(sc)->tulip_csrs.csr)
#define TULIP_CSR_WRITE(sc, csr, val) ((void)(*(sc)->tulip_csrs.csr = (val)))
#endif /* __NetBSD__ */
#endif /* TULIP_IOMAPPED */
/*
* This structure contains "pointers" for the registers on
* the various 21x4x chips. CSR0 through CSR8 are common
* to all chips. After that, it gets messy...
*/
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_frames; /* 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;
/*
* While 21x4x allows chaining of its descriptors, this driver
* doesn't take advantage of it. We keep the descriptors in a
* traditional FIFO ring.
*/
typedef struct {
tulip_desc_t *ri_first; /* first entry in ring */
tulip_desc_t *ri_last; /* one after last entry */
tulip_desc_t *ri_nextin; /* next to processed by host */
tulip_desc_t *ri_nextout; /* next to processed by adapter */
int ri_max;
int ri_free;
} tulip_ringinfo_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 (unless it's on an
* architecture which can't handle unaligned accesses) because with
* 100Mb/s cards the copying is just too much of a hit.
*/
#if defined(__alpha__)
#define TULIP_COPY_RXDATA 1
#endif
#define TULIP_TXTIMER 3
#define TULIP_RXDESCS 48
#define TULIP_TXDESCS 128
#define TULIP_RXQ_TARGET 32
#if TULIP_RXQ_TARGET >= TULIP_RXDESCS
#error TULIP_RXQ_TARGET must be less than TULIP_RXDESCS
#endif
#define TULIP_RX_BUFLEN ((MCLBYTES < 2048 ? MCLBYTES : 2048) - 16)
/*
* Forward reference to make C happy.
*/
typedef struct _tulip_softc_t tulip_softc_t;
/*
* Some boards need to treated specially. The following enumeration
* identifies the cards with quirks (or those we just want to single
* out for special merit or scorn).
*/
typedef enum {
TULIP_DC21040_GENERIC, /* Generic DC21040 (works with most any board) */
TULIP_DC21040_ZX314_MASTER, /* ZNYX ZX314 Master 21040 (it has the interrupt line) */
TULIP_DC21040_ZX314_SLAVE, /* ZNYX ZX314 Slave 21040 (its interrupt is tied to the master's */
TULIP_DC21140_DEC_EB, /* Digital Semicondutor 21140 Evaluation Board */
TULIP_DC21140_DEC_DE500, /* Digital DE500-?? 10/100 */
TULIP_DC21140_SMC_9332, /* SMC 9332 */
TULIP_DC21140_COGENT_EM100, /* Cogent EM100 100 only */
TULIP_DC21140_ZNYX_ZX34X, /* ZNYX ZX342 10/100 */
TULIP_DC21041_GENERIC, /* Generic DC21041 card */
TULIP_DC21041_DEC_DE450 /* Digital DE450 */
} tulip_board_t;
/*
* This data structure is used to abstract out the quirks.
* media_probe = tries to determine the media type.
* media_select = enables the current media (or autosenses)
* media_preset = 21140, etal requires bit to set before the
* the software reset; hence pre-set. Should be
* pre-reset but that's ugly.
* mii_probe = probe for PHY devices connected via the MII interface
* on 21140, etal.
*/
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);
void (*bd_media_preset)(tulip_softc_t *sc);
void (*bd_mii_probe)(tulip_softc_t *sc);
} tulip_boardsw_t;
/*
* The next few declarations are for MII/PHY based board.
*
* The first enumeration identifies a superset of various datums
* that can be obtained from various PHY chips. Not all PHYs will
* support all datums.
* The modedata structure indicates what register contains
* a datum, what mask is applied the register contents, and what the
* result should be.
* The attr structure records information about a supported PHY.
* The phy structure records information about a PHY instance.
*/
typedef enum {
PHY_MODE_10T,
PHY_MODE_100TX,
PHY_MODE_100T4,
PHY_MODE_FULLDUPLEX,
PHY_MODE_MAX
} phy_mode_t;
typedef struct {
unsigned short pm_regno;
unsigned short pm_mask;
unsigned short pm_value;
} phy_modedata_t;
typedef struct {
const char *attr_name;
unsigned attr_id;
unsigned short attr_flags;
#define PHY_NEED_HARD_RESET 0x0001
#define PHY_DUAL_CYCLE_TA 0x0002
phy_modedata_t attr_modes[PHY_MODE_MAX];
} phy_attr_t;
typedef struct _tulip_phy_t {
const struct _tulip_phy_t *phy_next;
const phy_attr_t *phy_attr;
unsigned phy_devaddr;
unsigned phy_status;
} tulip_phy_t;
/*
* Various probe states used when trying to autosense the media.
* While we could try to autosense on the 21040, it a pain and so
* until someone complain we won't. However, the 21041 and MII
* 2114x do support autosense.
*/
typedef enum {
TULIP_PROBE_INACTIVE, TULIP_PROBE_10BASET, TULIP_PROBE_AUI,
TULIP_PROBE_BNC, TULIP_PROBE_PHYRESET, TULIP_PROBE_PHYAUTONEG,
TULIP_PROBE_MEDIATEST, TULIP_PROBE_FAILED
} tulip_probe_state_t;
typedef struct {
/*
* Transmit Statistics
*/
tulip_uint32_t dot3StatsSingleCollisionFrames;
tulip_uint32_t dot3StatsMultipleCollisionFrames;
tulip_uint32_t dot3StatsSQETestErrors;
tulip_uint32_t dot3StatsDeferredTransmissions;
tulip_uint32_t dot3StatsLateCollisions;
tulip_uint32_t dot3StatsExcessiveCollisions;
tulip_uint32_t dot3StatsInternalMacTransmitErrors;
tulip_uint32_t dot3StatsCarrierSenseErrors;
/*
* Receive Statistics
*/
tulip_uint32_t dot3StatsMissedFrames; /* not in rfc1650! */
tulip_uint32_t dot3StatsAlignmentErrors;
tulip_uint32_t dot3StatsFCSErrors;
tulip_uint32_t dot3StatsFrameTooLongs;
tulip_uint32_t dot3StatsInternalMacReceiveErrors;
} tulip_dot3_stats_t;
/*
* Now to important stuff. This is softc structure (where does softc
* come from??? No idea) for the tulip device.
*
*/
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 */
#if _BSDI_VERSION < 199401
caddr_t tulip_bpf; /* for BPF */
#else
prf_t tulip_pf; /* printf function */
#endif
#endif
#if defined(__NetBSD__)
struct device tulip_dev; /* base device */
void *tulip_ih; /* intrrupt vectoring */
void *tulip_ats; /* shutdown hook */
bus_chipset_tag_t tulip_bc;
pci_chipset_tag_t tulip_pc;
#ifdef TULIP_IOMAPPED
bus_io_handle_t tulip_ioh; /* I/O region handle */
#else
bus_io_handle_t tulip_memh; /* memory region handle */
#endif
#endif
struct arpcom tulip_ac;
tulip_regfile_t tulip_csrs;
unsigned tulip_flags;
#define TULIP_WANTSETUP 0x00000001
#define TULIP_WANTHASH 0x00000002
#define TULIP_DOINGSETUP 0x00000004
#define TULIP_ALTPHYS 0x00000008
#define TULIP_PRINTMEDIA 0x00000010
#define TULIP_TXPROBE_ACTIVE 0x00000020
#define TULIP_TXPROBE_OK 0x00000040
#define TULIP_WANTRXACT 0x00000080
#define TULIP_RXACT 0x00000100
#define TULIP_INRESET 0x00000200
#define TULIP_NEEDRESET 0x00000400
#define TULIP_SQETEST 0x00000800
#define TULIP_ROMOK 0x00001000
#define TULIP_SLAVEDROM 0x00002000
#define TULIP_SLAVEDINTR 0x00004000
#define TULIP_SHAREDINTR 0x00008000
#define TULIP_LINKSUSPECT 0x00010000
#define TULIP_LINKUP 0x00020000
#define TULIP_RXBUFSLOW 0x00040000
#define TULIP_NOMESSAGES 0x00080000
#define TULIP_SYSTEMERROR 0x00100000
#define TULIP_DEVICEPROBE 0x00200000
#define TULIP_FAKEGPTIMEOUT 0x00400000
/* only 10 bits! */
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; /* our copy of csr_intr */
tulip_uint32_t tulip_cmdmode; /* our copy of csr_cmdmode */
tulip_uint32_t tulip_revinfo; /* revision of chip */
tulip_uint32_t tulip_gpticks; /* number of gpticks unless timeout */
tulip_uint32_t tulip_last_system_error : 3; /* last system error (only value is TULIP_SYSTEMERROR is also set) */
tulip_uint32_t tulip_txtimer : 2; /* transmission timer */
tulip_uint32_t tulip_system_errors; /* number of system errors encountered */
tulip_uint32_t tulip_statusbits; /* status bits from CSR5 that may need to be printed */
tulip_uint32_t tulip_abilities; /* remote system's abiltities (as defined in IEEE 802.3u) */
/* tulip_uint32_t tulip_bus; XXX */
tulip_media_t tulip_media; /* current media type */
tulip_probe_state_t tulip_probe_state; /* current media probe state */
tulip_chipid_t tulip_chipid; /* type of chip we are using */
const char *tulip_boardid; /* string for board ID */
char tulip_boardidbuf[16]; /* buffer for board ID */
const tulip_boardsw_t *tulip_boardsw; /* board/chip characteristics */
tulip_softc_t *tulip_slaves; /* slaved devices (ZX3xx) */
tulip_phy_t *tulip_phys; /* 802.3 PHY devices */
#if defined(TULIP_DEBUG)
/*
* Debugging/Statistical information
*/
struct {
tulip_uint32_t dbg_intrs;
tulip_uint32_t dbg_msdelay;
tulip_uint32_t dbg_gpticks;
enum {
TULIP_GPTMR_10MB,
TULIP_GPTMR_10MB_MII,
TULIP_GPTMR_100MB_MII
} dbg_gprate;
tulip_uint32_t dbg_gpintrs;
tulip_uint32_t dbg_gpintrs_hz;
tulip_uint32_t dbg_link_downed;
tulip_uint32_t dbg_link_suspected;
u_int16_t dbg_phyregs[32][4];
tulip_uint32_t dbg_rxlowbufs;
tulip_uint32_t dbg_rxintrs;
tulip_uint32_t dbg_last_rxintrs;
tulip_uint32_t dbg_high_rxintrs_hz;
tulip_uint32_t dbg_rxpktsperintr[TULIP_RXDESCS];
} tulip_dbg;
#endif
struct ifqueue tulip_txq;
struct ifqueue tulip_rxq;
struct ifmib_iso_8802_3 tulip_dot3stats;
tulip_ringinfo_t tulip_rxinfo;
tulip_ringinfo_t tulip_txinfo;
tulip_desc_t tulip_rxdescs[TULIP_RXDESCS];
tulip_desc_t tulip_txdescs[TULIP_TXDESCS];
};
static const char * const tulip_chipdescs[] = {
"DC21040 [10Mb/s]",
#if defined(TULIP_EISA)
"DE425 [10Mb/s]",
#else
NULL,
#endif
"DC21041 [10Mb/s]",
"DC21140 [10-100Mb/s]",
"DC21140A [10-100Mb/s]",
"DC21142 [10-100Mb/s]",
};
#define chip(x) DOT3CHIPSET(dot3VendorDigital, dot3ChipSetDigital##x)
static u_int32_t const tulip_chip2mib[] = {
chip(DC21040), chip(DC21040), chip(DC21041), chip(DC21140),
chip(DC21140A), chip(DC21142)
};
#undef chip
static const char * const tulip_mediums[] = {
"unknown", /* TULIP_MEDIA_UNKNOWN */
"10baseT", /* TULIP_MEDIA_10BASET */
"BNC", /* TULIP_MEDIA_BNC */
"AUI", /* TULIP_MEDIA_AUI */
"BNC/AUI", /* TULIP_MEDIA_BNCAUI */
"Full Duplex 10baseT", /* TULIP_MEDIA_10BASET_FD */
"100baseTX", /* TULIP_MEDIA_100BASET */
"Full Duplex 100baseTX", /* TULIP_MEDIA_100BASET_FD */
"100baseT4", /* TULIP_MEDIA_100BASET4 */
};
static const tulip_media_t tulip_phy_statuses[] = {
TULIP_MEDIA_10BASET, TULIP_MEDIA_10BASET_FD,
TULIP_MEDIA_100BASETX, TULIP_MEDIA_100BASETX_FD,
TULIP_MEDIA_100BASET4
};
static const char * const tulip_system_errors[] = {
"parity error",
"master abort",
"target abort",
"reserved #3",
"reserved #4",
"reserved #5",
"reserved #6",
"reserved #7",
};
static const char * const tulip_status_bits[] = {
NULL,
"transmit process stopped",
NULL,
"transmit jabber timeout",
NULL,
"transmit underflow",
NULL,
"receive underflow",
"receive process stopped",
"receive watchdog timeout",
NULL,
NULL,
"link failure",
NULL,
NULL,
};
#ifndef IFF_ALTPHYS
#define IFF_ALTPHYS IFF_LINK2 /* In case it isn't defined */
#endif
#ifndef IFF_FULLDUPLEX
#define IFF_FULLDUPLEX IFF_LINK1
#endif
#ifndef IFF_NOAUTONEG
#if IFF_ALTPHYS == IFF_LINK2
#define IFF_NOAUTONEG IFF_LINK0
#else
#define IFF_NOAUTONEG IFF_LINK2
#endif
#endif
#if (IFF_ALTPHYS&IFF_FULLDUPLEX&IFF_NOAUTONEG) != 0
#error IFF_ALTPHYS, IFF_FULLDUPLEX, IFF_NOAUTONEG overlap
#endif
/*
* This driver supports a maximum of 32 tulip boards.
* This should be enough for the forseeable future.
*/
#define TULIP_MAX_DEVICES 32
#if defined(TULIP_USE_SOFTINTR)
static tulip_uint32_t tulip_softintr_mask;
static int tulip_softintr_last_unit;
static int tulip_softintr_max_unit;
static void tulip_softintr(void);
#endif
#if defined(__FreeBSD__)
typedef void ifnet_ret_t;
typedef int ioctl_cmd_t;
tulip_softc_t *tulips[TULIP_MAX_DEVICES];
#if BSD >= 199506
#define TULIP_IFP_TO_SOFTC(ifp) ((tulip_softc_t *)((ifp)->if_softc))
#if NBPFILTER > 0
#define TULIP_BPF_MTAP(sc, m) bpf_mtap(&(sc)->tulip_if, m)
#define TULIP_BPF_TAP(sc, p, l) bpf_tap(&(sc)->tulip_if, p, l)
#define TULIP_BPF_ATTACH(sc) bpfattach(&(sc)->tulip_if, DLT_EN10MB, sizeof(struct ether_header))
#endif
#define tulip_intrfunc_t void
#define TULIP_VOID_INTRFUNC
#define IFF_NOTRAILERS 0
#define CLBYTES PAGE_SIZE
#if 0
#define TULIP_KVATOPHYS(sc, va) kvtop(va)
#endif
#define TULIP_EADDR_FMT "%6D"
#define TULIP_EADDR_ARGS(addr) addr, ":"
#else
extern int bootverbose;
#define TULIP_IFP_TO_SOFTC(ifp) (TULIP_UNIT_TO_SOFTC((ifp)->if_unit))
#endif
#if defined(TULIP_USE_SOFTINTR)
NETISR_SET(NETISR_DE, tulip_softintr);
#endif
#define TULIP_UNIT_TO_SOFTC(unit) (tulips[unit])
#define TULIP_BURSTSIZE(unit) pci_max_burst_len
#define loudprintf if (bootverbose) printf
#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_IFP_TO_SOFTC(ifp) (TULIP_UNIT_TO_SOFTC((ifp)->if_unit))
#if _BSDI_VERSION >= 199510
#if 0
#define TULIP_BURSTSIZE(unit) log2_burst_size
#endif
#define loudprintf aprint_verbose
#define printf (*sc->tulip_pf)
#elif _BSDI_VERSION <= 199401
#define DRQNONE 0
#define loudprintf printf
static void
arp_ifinit(
struct arpcom *ac,
struct ifaddr *ifa)
{
ac->ac_ipaddr = IA_SIN(ifa)->sin_addr;
arpwhohas(ac, &ac->ac_ipaddr);
}
#endif
#endif /* __bsdi__ */
#if defined(__NetBSD__)
typedef void ifnet_ret_t;
typedef u_long ioctl_cmd_t;
extern struct cfattach de_ca;
extern struct cfdriver de_cd;
#define TULIP_UNIT_TO_SOFTC(unit) ((tulip_softc_t *) de_cd.cd_devs[unit])
#define TULIP_IFP_TO_SOFTC(ifp) ((tulip_softc_t *)((ifp)->if_softc))
#define tulip_xname tulip_ac.ac_if.if_xname
#define tulip_unit tulip_dev.dv_unit
#define loudprintf printf
#define TULIP_PRINTF_FMT "%s"
#define TULIP_PRINTF_ARGS sc->tulip_xname
#if defined(__alpha__)
/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */
#define TULIP_KVATOPHYS(va) (vtophys(va) | 0x40000000)
#endif
#endif /* __NetBSD__ */
#ifndef TULIP_PRINTF_FMT
#define TULIP_PRINTF_FMT "%s%d"
#endif
#ifndef TULIP_PRINTF_ARGS
#define TULIP_PRINTF_ARGS sc->tulip_name, sc->tulip_unit
#endif
#ifndef TULIP_BURSTSIZE
#define TULIP_BURSTSIZE(unit) 3
#endif
#define tulip_if tulip_ac.ac_if
#ifndef tulip_unit
#define tulip_unit tulip_ac.ac_if.if_unit
#endif
#define tulip_name tulip_ac.ac_if.if_name
#define tulip_hwaddr tulip_ac.ac_enaddr
#if !defined(tulip_bpf) && (!defined(__bsdi__) || _BSDI_VERSION >= 199401)
#define tulip_bpf tulip_ac.ac_if.if_bpf
#endif
#if !defined(tulip_intrfunc_t)
#define tulip_intrfunc_t int
#endif
#if !defined(TULIP_KVATOPHYS)
#define TULIP_KVATOPHYS(sc, va) vtophys(va)
#endif
/*
* While I think FreeBSD's 2.2 change to the bpf is a nice simplification,
* it does add yet more conditional code to this driver. Sigh.
*/
#if !defined(TULIP_BPF_MTAP) && NBPFILTER > 0
#define TULIP_BPF_MTAP(sc, m) bpf_mtap((sc)->tulip_bpf, m)
#define TULIP_BPF_TAP(sc, p, l) bpf_tap((sc)->tulip_bpf, p, l)
#define TULIP_BPF_ATTACH(sc) bpfattach(&(sc)->tulip_bpf, &(sc)->tulip_if, DLT_EN10MB, sizeof(struct ether_header))
#endif
/*
* However, this change to FreeBSD I am much less enamored with.
*/
#if !defined(TULIP_EADDR_FMT)
#define TULIP_EADDR_FMT "%s"
#define TULIP_EADDR_ARGS(addr) ether_sprintf(addr)
#endif
#define TULIP_CRC32_POLY 0xEDB88320UL /* CRC-32 Poly -- Little Endian */
#define TULIP_MAX_TXSEG 30
#define TULIP_ADDREQUAL(a1, a2) \
(((u_int16_t *)a1)[0] == ((u_int16_t *)a2)[0] \
&& ((u_int16_t *)a1)[1] == ((u_int16_t *)a2)[1] \
&& ((u_int16_t *)a1)[2] == ((u_int16_t *)a2)[2])
#define TULIP_ADDRBRDCST(a1) \
(((u_int16_t *)a1)[0] == 0xFFFFU \
&& ((u_int16_t *)a1)[1] == 0xFFFFU \
&& ((u_int16_t *)a1)[2] == 0xFFFFU)
typedef int tulip_spl_t;
static tulip_intrfunc_t tulip_intr_shared(void *arg);
static tulip_intrfunc_t tulip_intr_normal(void *arg);
static void tulip_reset(tulip_softc_t * const sc);
static ifnet_ret_t tulip_ifstart(struct ifnet *ifp);
static void tulip_rx_intr(tulip_softc_t * const sc);
static void tulip_addr_filter(tulip_softc_t * const sc);
static unsigned tulip_mii_readreg(tulip_softc_t * const sc, unsigned devaddr, unsigned regno);
static void tulip_mii_writereg(tulip_softc_t * const sc, unsigned devaddr, unsigned regno, unsigned data);
static int
tulip_dc21040_media_probe(
tulip_softc_t * const sc)
{
int cnt;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, 0);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
for (cnt = 0; cnt < 2400; cnt++) {
if ((TULIP_CSR_READ(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) == 0)
break;
DELAY(1000);
}
sc->tulip_if.if_baudrate = 10000000;
return (TULIP_CSR_READ(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_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
sc->tulip_flags |= TULIP_SQETEST|TULIP_LINKUP;
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_AUI);
sc->tulip_media = TULIP_MEDIA_BNCAUI;
sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX;
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
} else {
if (sc->tulip_if.if_flags & IFF_FULLDUPLEX) {
sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX;
sc->tulip_media = TULIP_MEDIA_10BASET_FD;
sc->tulip_flags &= ~TULIP_SQETEST;
} else {
sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX;
sc->tulip_media = TULIP_MEDIA_10BASET;
}
if (sc->tulip_flags & TULIP_ALTPHYS)
sc->tulip_flags ^= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
}
}
static int
tulip_dc21040_10baset_only_media_probe(
tulip_softc_t * const sc)
{
TULIP_CSR_WRITE(sc, csr_sia_connectivity, 0);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
sc->tulip_if.if_baudrate = 10000000;
return 0;
}
static void
tulip_dc21040_10baset_only_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_THRSHLD160
|TULIP_CMD_BACKOFFCTR;
sc->tulip_flags |= TULIP_LINKUP;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
if (sc->tulip_if.if_flags & IFF_FULLDUPLEX) {
sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX;
sc->tulip_media = TULIP_MEDIA_10BASET_FD;
sc->tulip_flags &= ~TULIP_SQETEST;
} else {
sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX;
sc->tulip_media = TULIP_MEDIA_10BASET;
sc->tulip_flags |= TULIP_SQETEST;
}
if (sc->tulip_flags & TULIP_ALTPHYS)
sc->tulip_flags ^= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_flags &= ~TULIP_ALTPHYS;
}
static int
tulip_dc21040_auibnc_only_media_probe(
tulip_softc_t * const sc)
{
TULIP_CSR_WRITE(sc, csr_sia_connectivity, 0);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_AUI);
sc->tulip_if.if_baudrate = 10000000;
sc->tulip_flags |= TULIP_SQETEST|TULIP_LINKUP;
return 0;
}
static void
tulip_dc21040_auibnc_only_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_THRSHLD160
|TULIP_CMD_BACKOFFCTR;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_AUI);
if (sc->tulip_if.if_flags & IFF_FULLDUPLEX)
sc->tulip_if.if_flags &= ~IFF_FULLDUPLEX;
sc->tulip_media = TULIP_MEDIA_BNCAUI;
sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX;
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_flags &= ~TULIP_ALTPHYS;
}
static const tulip_boardsw_t tulip_dc21040_boardsw = {
TULIP_DC21040_GENERIC,
"",
tulip_dc21040_media_probe,
tulip_dc21040_media_select,
NULL,
NULL
};
static const tulip_boardsw_t tulip_dc21040_10baset_only_boardsw = {
TULIP_DC21040_GENERIC,
"",
tulip_dc21040_10baset_only_media_probe,
tulip_dc21040_10baset_only_media_select,
NULL,
NULL
};
static const tulip_boardsw_t tulip_dc21040_auibnc_only_boardsw = {
TULIP_DC21040_GENERIC,
"",
tulip_dc21040_auibnc_only_media_probe,
tulip_dc21040_auibnc_only_media_select,
NULL,
NULL
};
static const tulip_boardsw_t tulip_dc21040_zx314_master_boardsw = {
TULIP_DC21040_ZX314_MASTER,
"ZNYX ZX314 ",
tulip_dc21040_10baset_only_media_probe,
tulip_dc21040_10baset_only_media_select
};
static const tulip_boardsw_t tulip_dc21040_zx314_slave_boardsw = {
TULIP_DC21040_ZX314_SLAVE,
"ZNYX ZX314 ",
tulip_dc21040_10baset_only_media_probe,
tulip_dc21040_10baset_only_media_select
};
static const phy_attr_t tulip_phy_attrlist[] = {
{ "NS DP83840", 0x20005c00, 0, /* 08-00-17 */
{
{ 0x19, 0x40, 0x40 }, /* 10TX */
{ 0x19, 0x40, 0x00 }, /* 100TX */
}
},
{ "Seeq 80C240", 0x0281F400, 0, /* 00-A0-7D */
{
{ 0x12, 0x10, 0x00 }, /* 10T */
{ }, /* 100TX */
{ 0x12, 0x10, 0x10 }, /* 100T4 */
{ 0x12, 0x08, 0x08 }, /* FULL_DUPLEX */
}
},
{ NULL }
};
static void
tulip_dc21140_mii_probe(
tulip_softc_t * const sc)
{
unsigned devaddr;
for (devaddr = 31; devaddr > 0; devaddr--) {
unsigned status = tulip_mii_readreg(sc, devaddr, PHYREG_STATUS);
unsigned media;
unsigned id;
const phy_attr_t *attr;
tulip_phy_t *phy;
const char *sep;
if (status == 0 || status == 0xFFFF || status < PHYSTS_10BASET)
continue;
if ((status & PHYSTS_EXTENDED_REGS) == 0) {
loudprintf(TULIP_PRINTF_FMT "(phy%d): skipping (no extended register set)\n",
TULIP_PRINTF_ARGS, devaddr);
continue;
}
id = (tulip_mii_readreg(sc, devaddr, PHYREG_IDLOW) << 16) |
tulip_mii_readreg(sc, devaddr, PHYREG_IDHIGH);
for (attr = tulip_phy_attrlist; attr->attr_name != NULL; attr++) {
if ((id & ~0x0F) == attr->attr_id)
break;
}
if (attr->attr_name == NULL) {
loudprintf(TULIP_PRINTF_FMT "(phy%d): skipping (unrecogized id 0x%08x)\n",
TULIP_PRINTF_ARGS, devaddr, id & ~0x0F);
continue;
}
MALLOC(phy, tulip_phy_t *, sizeof(tulip_phy_t), M_DEVBUF, M_NOWAIT);
if (phy == NULL) {
loudprintf(TULIP_PRINTF_FMT "(phy%d): skipping (memory allocation failed)\n",
TULIP_PRINTF_ARGS, devaddr);
continue;
}
phy->phy_attr = attr;
phy->phy_devaddr = devaddr;
phy->phy_status = status;
phy->phy_next = sc->tulip_phys;
sc->tulip_phys = phy;
loudprintf(TULIP_PRINTF_FMT "(phy%d): model = %s%s\n",
TULIP_PRINTF_ARGS,
phy->phy_devaddr, phy->phy_attr->attr_name,
(phy->phy_status & PHYSTS_CAN_AUTONEG)
? " (supports media autonegotiation)"
: "");
loudprintf(TULIP_PRINTF_FMT "(phy%d): media = ",
TULIP_PRINTF_ARGS, phy->phy_devaddr);
for (media = 11, sep = ""; media < 16; media++) {
if (status & (1 << media)) {
loudprintf("%s%s", sep, tulip_mediums[tulip_phy_statuses[media-11]]);
sep = ", ";
}
}
loudprintf("\n");
}
}
/*
* The general purpose timer of the 21140/21140a/21142 is kind
* of strange. It can run on one of 3 speeds depending on the mode
* of the chip.
*
* 10Mb/s port 204.8 microseconds (also speed of DC21041 timer)
* 100Mb/s MII 81.92 microseconds
* 10Mb/s MII 819.2 microseconds
*
* So we use a tick of a 819.2 microseconds and bias the number of ticks
* required based on the mode in which we are running. 2560/3125 = .8192
* so we use the reciprocal to scale the ms delay to 21140 ticks.
*/
static void
tulip_dc21140_gp_timer_set(
tulip_softc_t * const sc,
unsigned msdelay)
{
tulip_uint32_t cmdmode = TULIP_CSR_READ(sc, csr_command);
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_msdelay = msdelay;
#endif
if ((cmdmode & TULIP_CMD_PORTSELECT) == 0) {
msdelay *= 4;
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_gprate = TULIP_GPTMR_10MB_MII;
#endif
} else if ((cmdmode & TULIP_CMD_TXTHRSHLDCTL) == 0) {
msdelay *= 10;
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_gprate = TULIP_GPTMR_100MB_MII;
} else {
sc->tulip_dbg.dbg_gprate = TULIP_GPTMR_10MB;
#endif
}
#if 0
if (sc->tulip_chipid == TULIP_DC21140A)
msdelay *= 10;
#endif
TULIP_CSR_WRITE(sc, csr_status, TULIP_STS_GPTIMEOUT);
TULIP_CSR_WRITE(sc, csr_gp_timer, (msdelay * 313 + 128) / 256);
if (sc->tulip_flags & TULIP_DEVICEPROBE) {
sc->tulip_flags |= TULIP_FAKEGPTIMEOUT;
} else {
TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask);
sc->tulip_flags &= ~TULIP_FAKEGPTIMEOUT;
}
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_gpticks = (msdelay * 313 + 128) / 256;
#endif
}
static int
tulip_dc21140_map_abilities(
tulip_softc_t * const sc,
const tulip_phy_t * const phy,
unsigned abilities)
{
sc->tulip_abilities = abilities;
if (abilities & PHYSTS_100BASETX_FD) {
sc->tulip_media = TULIP_MEDIA_100BASETX_FD;
} else if (abilities & PHYSTS_100BASETX) {
sc->tulip_media = TULIP_MEDIA_100BASETX;
} else if (abilities & PHYSTS_100BASET4) {
sc->tulip_media = TULIP_MEDIA_100BASET4;
} else if (abilities & PHYSTS_10BASET_FD) {
sc->tulip_media = TULIP_MEDIA_10BASET_FD;
} else if (abilities & PHYSTS_10BASET) {
sc->tulip_media = TULIP_MEDIA_10BASET;
} else {
sc->tulip_media = TULIP_MEDIA_UNKNOWN;
sc->tulip_probe_state = TULIP_PROBE_MEDIATEST;
return 1;
}
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE;
sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_NEEDRESET;
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
return 0;
}
static void
tulip_dc21140_autonegotiate(
tulip_softc_t * const sc,
const tulip_phy_t * const phy)
{
tulip_uint32_t data;
if (sc->tulip_flags & TULIP_INRESET) {
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
}
if (sc->tulip_if.if_flags & IFF_NOAUTONEG) {
sc->tulip_probe_state = TULIP_PROBE_MEDIATEST;
data = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_CONTROL);
if (data & PHYCTL_AUTONEG_ENABLE) {
data &= ~PHYCTL_AUTONEG_ENABLE;
tulip_mii_writereg(sc, phy->phy_devaddr, PHYREG_CONTROL, data);
}
return;
}
again:
switch (sc->tulip_probe_state) {
case TULIP_PROBE_INACTIVE: {
sc->tulip_flags |= TULIP_TXPROBE_ACTIVE;
tulip_mii_writereg(sc, phy->phy_devaddr, PHYREG_CONTROL, PHYCTL_RESET);
sc->tulip_gpticks = 10;
sc->tulip_intrmask |= TULIP_STS_ABNRMLINTR|TULIP_STS_GPTIMEOUT|TULIP_STS_NORMALINTR;
sc->tulip_probe_state = TULIP_PROBE_PHYRESET;
goto again;
}
case TULIP_PROBE_PHYRESET: {
data = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_CONTROL);
if (data & PHYCTL_RESET) {
if (--sc->tulip_gpticks > 0) {
tulip_dc21140_gp_timer_set(sc, 100);
return;
}
printf(TULIP_PRINTF_FMT "(phy%d): error: reset of PHY never completed!\n",
TULIP_PRINTF_ARGS, phy->phy_devaddr);
sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE;
sc->tulip_probe_state = TULIP_PROBE_FAILED;
sc->tulip_if.if_flags &= ~(IFF_UP|IFF_RUNNING);
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
return;
}
if ((phy->phy_status & PHYSTS_CAN_AUTONEG) == 0
&& (sc->tulip_if.if_flags & IFF_NOAUTONEG)) {
#ifdef TULIP_DEBUG
loudprintf(TULIP_PRINTF_FMT "(phy%d): autonegotiation disabled\n",
TULIP_PRINTF_ARGS, phy->phy_devaddr);
#endif
sc->tulip_probe_state = TULIP_PROBE_MEDIATEST;
return;
}
if (tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_AUTONEG_ADVERTISEMENT) != ((phy->phy_status >> 6) | 0x01))
tulip_mii_writereg(sc, phy->phy_devaddr, PHYREG_AUTONEG_ADVERTISEMENT, (phy->phy_status >> 6) | 0x01);
tulip_mii_writereg(sc, phy->phy_devaddr, PHYREG_CONTROL, data|PHYCTL_AUTONEG_RESTART|PHYCTL_AUTONEG_ENABLE);
data = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_CONTROL);
#ifdef TULIP_DEBUG
if ((data & PHYCTL_AUTONEG_ENABLE) == 0)
loudprintf(TULIP_PRINTF_FMT "(phy%d): oops: enable autonegotiation failed: 0x%04x\n",
TULIP_PRINTF_ARGS, phy->phy_devaddr, data);
else
loudprintf(TULIP_PRINTF_FMT "(phy%d): autonegotiation restarted: 0x%04x\n",
TULIP_PRINTF_ARGS, phy->phy_devaddr, data);
#endif
sc->tulip_probe_state = TULIP_PROBE_PHYAUTONEG;
sc->tulip_gpticks = 60;
goto again;
}
case TULIP_PROBE_PHYAUTONEG: {
data = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_STATUS);
if ((data & PHYSTS_AUTONEG_DONE) == 0) {
if (--sc->tulip_gpticks > 0) {
tulip_dc21140_gp_timer_set(sc, 100);
return;
}
#ifdef TULIP_DEBUG
loudprintf(TULIP_PRINTF_FMT "(phy%d): autonegotiation timeout: sts=0x%04x, ctl=0x%04x\n",
TULIP_PRINTF_ARGS, phy->phy_devaddr, data,
tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_CONTROL));
#endif
sc->tulip_probe_state = TULIP_PROBE_MEDIATEST;
return;
}
data = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_AUTONEG_ABILITIES);
#ifdef TULIP_DEBUG
loudprintf(TULIP_PRINTF_FMT "(phy%d): autonegotiation complete: 0x%04x\n",
TULIP_PRINTF_ARGS, phy->phy_devaddr, data);
#endif
data = (data << 6) & phy->phy_status;
tulip_dc21140_map_abilities(sc, phy, data);
return;
}
}
#ifdef TULIP_DEBUG
loudprintf(TULIP_PRINTF_FMT "(phy%d): autonegotiation failure: state = %d\n",
TULIP_PRINTF_ARGS, phy->phy_devaddr, sc->tulip_probe_state);
#endif
}
static tulip_media_t
tulip_dc21140_phy_readspecific(
tulip_softc_t * const sc,
const tulip_phy_t * const phy)
{
const phy_attr_t * const attr = phy->phy_attr;
unsigned data;
unsigned idx = 0;
static const tulip_media_t table[] = {
TULIP_MEDIA_UNKNOWN,
TULIP_MEDIA_10BASET,
TULIP_MEDIA_100BASETX,
TULIP_MEDIA_100BASET4,
TULIP_MEDIA_UNKNOWN,
TULIP_MEDIA_10BASET_FD,
TULIP_MEDIA_100BASETX_FD,
TULIP_MEDIA_UNKNOWN
};
/*
* Don't read phy specific registers if link is not up.
*/
data = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_STATUS);
if ((data & PHYSTS_LINK_UP) == 0)
return TULIP_MEDIA_UNKNOWN;
if (attr->attr_modes[PHY_MODE_100TX].pm_regno) {
const phy_modedata_t * const pm = &attr->attr_modes[PHY_MODE_100TX];
data = tulip_mii_readreg(sc, phy->phy_devaddr, pm->pm_regno);
if ((data & pm->pm_mask) == pm->pm_value)
idx = 2;
}
if (idx == 0 && attr->attr_modes[PHY_MODE_100T4].pm_regno) {
const phy_modedata_t * const pm = &attr->attr_modes[PHY_MODE_100T4];
data = tulip_mii_readreg(sc, phy->phy_devaddr, pm->pm_regno);
if ((data & pm->pm_mask) == pm->pm_value)
idx = 3;
}
if (idx == 0 && attr->attr_modes[PHY_MODE_10T].pm_regno) {
const phy_modedata_t * const pm = &attr->attr_modes[PHY_MODE_10T];
data = tulip_mii_readreg(sc, phy->phy_devaddr, pm->pm_regno);
if ((data & pm->pm_mask) == pm->pm_value)
idx = 1;
}
if (idx != 0 && attr->attr_modes[PHY_MODE_FULLDUPLEX].pm_regno) {
const phy_modedata_t * const pm = &attr->attr_modes[PHY_MODE_FULLDUPLEX];
data = tulip_mii_readreg(sc, phy->phy_devaddr, pm->pm_regno);
idx += ((data & pm->pm_mask) == pm->pm_value ? 4 : 0);
}
return table[idx];
}
static void
tulip_dc21140_mii_link_monitor(
tulip_softc_t * const sc,
const tulip_phy_t * const phy)
{
tulip_uint32_t data;
tulip_dc21140_gp_timer_set(sc, 425);
/*
* Have we seen some packets? If so, the link must be good.
*/
if ((sc->tulip_flags & (TULIP_RXACT|TULIP_LINKSUSPECT|TULIP_LINKUP)) == (TULIP_RXACT|TULIP_LINKUP)) {
sc->tulip_flags &= ~TULIP_RXACT;
return;
}
/*
* Read the PHY status register.
*/
data = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_STATUS);
if ((sc->tulip_if.if_flags & IFF_NOAUTONEG) == 0 && (data & PHYSTS_AUTONEG_DONE)) {
/*
* If autonegotiation hasn't been disabled and the PHY has complete
* autonegotiation, see the if the remote systems abilities have changed.
* If so, upgrade or downgrade as appropriate.
*/
unsigned abilities = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_AUTONEG_ABILITIES);
abilities = (abilities << 6) & phy->phy_status;
if (abilities != sc->tulip_abilities) {
sc->tulip_flags |= TULIP_PRINTMEDIA;
#ifdef TULIP_DEBUG
loudprintf(TULIP_PRINTF_FMT "(phy%d): autonegotiation changed: 0x%04x -> 0x%04x\n",
TULIP_PRINTF_ARGS, phy->phy_devaddr,
sc->tulip_abilities, abilities);
#endif
tulip_dc21140_map_abilities(sc, phy, abilities);
return;
}
}
/*
* The link is now up. If was down, say its back up.
*/
if ((data & (PHYSTS_LINK_UP|PHYSTS_REMOTE_FAULT)) == PHYSTS_LINK_UP) {
if ((sc->tulip_if.if_flags & IFF_NOAUTONEG) == 0) {
tulip_media_t media = tulip_dc21140_phy_readspecific(sc, phy);
if (media != sc->tulip_media && media != TULIP_MEDIA_UNKNOWN) {
sc->tulip_media = media;
sc->tulip_flags |= TULIP_PRINTMEDIA;
}
}
sc->tulip_gpticks = 0;
if (sc->tulip_flags & TULIP_PRINTMEDIA) {
printf(TULIP_PRINTF_FMT ": %senabling %s port\n",
TULIP_PRINTF_ARGS,
(sc->tulip_flags & TULIP_LINKUP) ? "" : "link up: ",
tulip_mediums[sc->tulip_media]);
} else if ((sc->tulip_flags & TULIP_LINKUP) == 0) {
printf(TULIP_PRINTF_FMT ": link up\n", TULIP_PRINTF_ARGS);
}
sc->tulip_flags &= ~(TULIP_PRINTMEDIA|TULIP_LINKSUSPECT|TULIP_RXACT);
sc->tulip_flags |= TULIP_LINKUP;
return;
}
/*
* The link may be down. Mark it as suspect. If suspect for 12 ticks,
* mark it down. If autonegotiation is not disabled, restart the media
* probe to see if the media has changed.
*/
if ((sc->tulip_flags & TULIP_LINKSUSPECT) == 0) {
sc->tulip_flags |= TULIP_LINKSUSPECT;
sc->tulip_flags &= ~TULIP_LINKUP;
sc->tulip_gpticks = 12;
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_link_suspected++;
#endif
return;
}
if (--sc->tulip_gpticks > 0)
return;
if (sc->tulip_flags & TULIP_LINKSUSPECT) {
printf(TULIP_PRINTF_FMT ": link down: cable problem?\n", TULIP_PRINTF_ARGS);
sc->tulip_flags &= ~TULIP_LINKSUSPECT;
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_link_downed++;
#endif
}
if (sc->tulip_if.if_flags & IFF_NOAUTONEG)
return;
sc->tulip_media = TULIP_MEDIA_UNKNOWN;
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
tulip_dc21140_autonegotiate(sc, phy);
}
static void
tulip_dc21140_nomii_media_preset(
tulip_softc_t * const sc)
{
sc->tulip_flags &= ~TULIP_SQETEST;
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
sc->tulip_if.if_baudrate = 100000000;
} else {
sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER);
sc->tulip_if.if_baudrate = 10000000;
if ((sc->tulip_cmdmode & TULIP_CMD_FULLDUPLEX) == 0)
sc->tulip_flags |= TULIP_SQETEST;
}
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
}
static void
tulip_dc21140_mii_media_preset(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT;
sc->tulip_flags &= ~TULIP_SQETEST;
if (sc->tulip_media != TULIP_MEDIA_UNKNOWN) {
switch (sc->tulip_media) {
case TULIP_MEDIA_10BASET: {
sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX;
sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_if.if_baudrate = 10000000;
sc->tulip_flags |= TULIP_SQETEST;
break;
}
case TULIP_MEDIA_10BASET_FD: {
sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX|TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_if.if_baudrate = 10000000;
break;
}
case TULIP_MEDIA_100BASET4:
case TULIP_MEDIA_100BASETX: {
sc->tulip_cmdmode &= ~(TULIP_CMD_FULLDUPLEX|TULIP_CMD_TXTHRSHLDCTL);
sc->tulip_if.if_baudrate = 100000000;
break;
}
case TULIP_MEDIA_100BASETX_FD: {
sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_if.if_baudrate = 100000000;
break;
}
}
}
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
}
static void
tulip_dc21140_nomii_100only_media_preset(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
}
static int
tulip_dc21140_evalboard_media_probe(
tulip_softc_t * const sc)
{
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EB_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EB_INIT);
TULIP_CSR_WRITE(sc, csr_command,
TULIP_CSR_READ(sc, csr_command) | TULIP_CMD_PORTSELECT |
TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
TULIP_CSR_WRITE(sc, csr_command,
TULIP_CSR_READ(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
DELAY(1000000);
return (TULIP_CSR_READ(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;
sc->tulip_flags |= TULIP_LINKUP;
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EB_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EB_INIT);
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_media = TULIP_MEDIA_100BASETX;
sc->tulip_flags &= ~TULIP_SQETEST;
} else {
if (sc->tulip_flags & TULIP_ALTPHYS)
sc->tulip_flags ^= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_media = TULIP_MEDIA_10BASET;
sc->tulip_flags |= TULIP_SQETEST;
}
#ifdef BIG_PACKET
if (sc->tulip_if.if_mtu > ETHERMTU) {
TULIP_CSR_WRITE(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
}
#endif
}
static const tulip_boardsw_t tulip_dc21140_eb_boardsw = {
TULIP_DC21140_DEC_EB,
"",
tulip_dc21140_evalboard_media_probe,
tulip_dc21140_evalboard_media_select,
tulip_dc21140_nomii_media_preset,
};
static int
tulip_dc21140_smc9332_media_probe(
tulip_softc_t * const sc)
{
int idx, cnt = 0;
TULIP_CSR_WRITE(sc, csr_command, TULIP_CMD_PORTSELECT|TULIP_CMD_MUSTBEONE);
TULIP_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microseconds (actually 50 PCI cycles but at
33MHz that comes to two microseconds but wait a
bit longer anyways) */
TULIP_CSR_WRITE(sc, csr_command, TULIP_CMD_PORTSELECT |
TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_SMC_9332_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_SMC_9332_INIT);
DELAY(200000);
for (idx = 1000; idx > 0; idx--) {
tulip_uint32_t csr = TULIP_CSR_READ(sc, csr_gp);
if ((csr & (TULIP_GP_SMC_9332_OK10|TULIP_GP_SMC_9332_OK100)) == (TULIP_GP_SMC_9332_OK10|TULIP_GP_SMC_9332_OK100)) {
if (++cnt > 100)
break;
} else if ((csr & TULIP_GP_SMC_9332_OK10) == 0) {
break;
} else {
cnt = 0;
}
DELAY(1000);
}
return cnt > 100;
}
static void
tulip_dc21140_smc9332_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
|TULIP_CMD_BACKOFFCTR;
sc->tulip_flags |= TULIP_LINKUP;
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_SMC_9332_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_SMC_9332_INIT);
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_media = TULIP_MEDIA_100BASETX;
sc->tulip_flags &= ~TULIP_SQETEST;
} else {
if (sc->tulip_flags & TULIP_ALTPHYS)
sc->tulip_flags ^= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_media = TULIP_MEDIA_10BASET;
sc->tulip_flags |= TULIP_SQETEST;
}
#ifdef BIG_PACKET
if (sc->tulip_if.if_mtu > ETHERMTU) {
TULIP_CSR_WRITE(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
}
#endif
}
static const tulip_boardsw_t tulip_dc21140_smc9332_boardsw = {
TULIP_DC21140_SMC_9332,
"SMC 9332 ",
tulip_dc21140_smc9332_media_probe,
tulip_dc21140_smc9332_media_select,
tulip_dc21140_nomii_media_preset,
};
static int
tulip_dc21140_cogent_em100_media_probe(
tulip_softc_t * const sc)
{
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_INIT);
TULIP_CSR_WRITE(sc, csr_command,
TULIP_CSR_READ(sc, csr_command) | TULIP_CMD_PORTSELECT |
TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
TULIP_CSR_WRITE(sc, csr_command,
TULIP_CSR_READ(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;
sc->tulip_flags |= TULIP_LINKUP;
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_INIT);
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_media = TULIP_MEDIA_100BASETX;
#ifdef BIG_PACKET
if (sc->tulip_if.if_mtu > ETHERMTU) {
TULIP_CSR_WRITE(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
}
#endif
}
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,
tulip_dc21140_nomii_100only_media_preset
};
static int
tulip_dc21140_znyx_zx34x_media_probe(
tulip_softc_t * const sc)
{
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_ZX34X_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_ZX34X_INIT);
TULIP_CSR_WRITE(sc, csr_command,
TULIP_CSR_READ(sc, csr_command) | TULIP_CMD_PORTSELECT |
TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
TULIP_CSR_WRITE(sc, csr_command,
TULIP_CSR_READ(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
DELAY(1000000);
return (TULIP_CSR_READ(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;
sc->tulip_flags |= TULIP_LINKUP;
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_ZX34X_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_ZX34X_INIT);
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_media = TULIP_MEDIA_100BASETX;
} else {
if (sc->tulip_flags & TULIP_ALTPHYS)
sc->tulip_flags ^= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
sc->tulip_media = TULIP_MEDIA_10BASET;
}
#ifdef BIG_PACKET
if (sc->tulip_if.if_mtu > ETHERMTU) {
TULIP_CSR_WRITE(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
}
#endif
}
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,
tulip_dc21140_nomii_media_preset,
};
static const struct {
unsigned short value_gp;
unsigned short value_phyctl;
} tulip_dc21140_de500_csrvalues[] = {
{ TULIP_GP_DE500_HALFDUPLEX, 0 }, /* TULIP_MEDIA_UNKNOWN */
{ TULIP_GP_DE500_HALFDUPLEX, 0 }, /* TULIP_MEDIA_10BASET */
{ /* n/a */ }, /* TULIP_MEDIA_BNC */
{ /* n/a */ }, /* TULIP_MEDIA_AUI */
{ /* n/a */ }, /* TULIP_MEDIA_BNCAUI */
{ 0, PHYCTL_FULL_DUPLEX }, /* TULIP_MEDIA_10BASET_FD */
{ TULIP_GP_DE500_HALFDUPLEX| /* TULIP_MEDIA_100BASET */
TULIP_GP_DE500_FORCE_100, PHYCTL_SELECT_100MB },
{ TULIP_GP_DE500_FORCE_100, /* TULIP_MEDIA_100BASET_FD */
PHYCTL_SELECT_100MB|PHYCTL_FULL_DUPLEX },
{ TULIP_GP_DE500_HALFDUPLEX| /* TULIP_MEDIA_100BASET4 */
TULIP_GP_DE500_FORCE_100, PHYCTL_SELECT_100MB },
};
static void
tulip_dc21140_de500_media_select(
tulip_softc_t * const sc)
{
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
if (sc->tulip_if.if_flags & IFF_FULLDUPLEX) {
sc->tulip_media = TULIP_MEDIA_100BASETX_FD;
sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX;
} else {
sc->tulip_media = TULIP_MEDIA_100BASETX;
sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX;
}
if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
} else {
if (sc->tulip_if.if_flags & IFF_FULLDUPLEX) {
sc->tulip_media = TULIP_MEDIA_10BASET_FD;
sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX;
} else {
sc->tulip_media = TULIP_MEDIA_10BASET;
sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX;
}
if (sc->tulip_flags & TULIP_ALTPHYS)
sc->tulip_flags ^= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
}
}
static int
tulip_dc21140_de500xa_media_probe(
tulip_softc_t * const sc)
{
int idx;
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_DE500_PINS);
DELAY(500);
TULIP_CSR_WRITE(sc, csr_gp,
TULIP_GP_DE500_HALFDUPLEX|TULIP_GP_DE500_FORCE_100);
DELAY(1000);
TULIP_CSR_WRITE(sc, csr_command,
TULIP_CSR_READ(sc, csr_command)
|TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION
|TULIP_CMD_SCRAMBLER|TULIP_CMD_MUSTBEONE);
TULIP_CSR_WRITE(sc, csr_command,
TULIP_CSR_READ(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
for (idx = 2400; idx > 0; idx--) {
tulip_uint32_t data;
DELAY(1000);
data = ~TULIP_CSR_READ(sc, csr_gp);
if ((data & (TULIP_GP_DE500_LINK_PASS|TULIP_GP_DE500_SYM_LINK)) == (TULIP_GP_DE500_SYM_LINK|TULIP_GP_DE500_LINK_PASS))
return 1;
}
return 0;
}
static void
tulip_dc21140_de500xa_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
|TULIP_CMD_BACKOFFCTR;
sc->tulip_flags |= TULIP_LINKUP;
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_DE500_PINS);
tulip_dc21140_de500_media_select(sc);
TULIP_CSR_WRITE(sc, csr_gp, tulip_dc21140_de500_csrvalues[sc->tulip_media].value_gp);
#ifdef BIG_PACKET
if (sc->tulip_if.if_mtu > ETHERMTU) {
TULIP_CSR_WRITE(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
}
#endif
}
static const tulip_boardsw_t tulip_dc21140_de500xa_boardsw = {
TULIP_DC21140_DEC_DE500, "Digital DE500-XA ",
tulip_dc21140_de500xa_media_probe,
tulip_dc21140_de500xa_media_select,
tulip_dc21140_nomii_media_preset,
};
static int
tulip_dc21140_de500aa_media_probe(
tulip_softc_t * const sc)
{
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_DE500_PINS);
TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_DE500_PHY_RESET);
DELAY(1000);
TULIP_CSR_WRITE(sc, csr_gp, 0);
TULIP_CSR_WRITE(sc, csr_command, TULIP_CMD_PORTSELECT);
return 0;
}
static void
tulip_dc21140_de500aa_media_select(
tulip_softc_t * const sc)
{
const tulip_phy_t *phy = sc->tulip_phys;
tulip_uint32_t data;
if (phy == NULL)
return;
/*
* Defer autosensing until out of device probe (will be
* triggered by ifwatchdog or ifioctl).
*/
if (sc->tulip_media == TULIP_MEDIA_UNKNOWN) {
tulip_media_t old_media;
if (sc->tulip_probe_state != TULIP_PROBE_MEDIATEST)
tulip_dc21140_autonegotiate(sc, phy);
if (sc->tulip_probe_state != TULIP_PROBE_MEDIATEST)
return;
old_media = sc->tulip_media;
if (sc->tulip_if.if_flags & IFF_NOAUTONEG) {
tulip_dc21140_de500_media_select(sc);
} else {
sc->tulip_media = tulip_dc21140_phy_readspecific(sc, phy);
if (sc->tulip_media == TULIP_MEDIA_UNKNOWN) {
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
tulip_dc21140_autonegotiate(sc, phy);
return;
}
sc->tulip_flags |= TULIP_PRINTMEDIA;
}
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE;
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
if (sc->tulip_flags & TULIP_INRESET)
goto in_reset;
if (sc->tulip_media != old_media)
sc->tulip_flags |= TULIP_NEEDRESET;
return;
}
if ((sc->tulip_flags & TULIP_INRESET) == 0) {
tulip_dc21140_mii_link_monitor(sc, phy);
return;
}
in_reset:
if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
sc->tulip_flags |= TULIP_ALTPHYS;
} else {
sc->tulip_flags &= ~TULIP_ALTPHYS;
}
sc->tulip_gpticks = 8;
sc->tulip_intrmask |= TULIP_STS_ABNRMLINTR|TULIP_STS_GPTIMEOUT|TULIP_STS_NORMALINTR;
tulip_dc21140_gp_timer_set(sc, 425);
data = tulip_mii_readreg(sc, phy->phy_devaddr, PHYREG_CONTROL);
if ((data & PHYCTL_AUTONEG_ENABLE) == 0) {
data &= ~(PHYCTL_SELECT_100MB|PHYCTL_FULL_DUPLEX);
data |= tulip_dc21140_de500_csrvalues[sc->tulip_media].value_phyctl;
tulip_mii_writereg(sc, phy->phy_devaddr, PHYREG_CONTROL, data);
}
}
static const tulip_boardsw_t tulip_dc21140_de500aa_boardsw = {
TULIP_DC21140_DEC_DE500, "Digital DE500-AA ",
tulip_dc21140_de500aa_media_probe,
tulip_dc21140_de500aa_media_select,
tulip_dc21140_mii_media_preset,
tulip_dc21140_mii_probe,
};
static int
tulip_dc21041_media_probe(
tulip_softc_t * const sc)
{
sc->tulip_if.if_baudrate = 10000000;
return 0;
}
#ifdef BIG_PACKET
#define TULIP_DC21041_SIAGEN_WATCHDOG (sc->tulip_if.if_mtu > ETHERMTU ? TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE : 0)
#else
#define TULIP_DC21041_SIAGEN_WATCHDOG 0
#endif
static void
tulip_dc21041_media_select(
tulip_softc_t * const sc)
{
sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_ENHCAPTEFFCT
|TULIP_CMD_THRSHLD160|TULIP_CMD_BACKOFFCTR;
sc->tulip_intrmask |= TULIP_STS_NORMALINTR|TULIP_STS_GPTIMEOUT|TULIP_STS_TXINTR
|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_CSR_READ(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) {
if (sc->tulip_media == TULIP_MEDIA_BNC) {
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_BNC);
TULIP_CSR_WRITE(sc, csr_sia_general, TULIP_DC21041_SIAGEN_BNC|TULIP_DC21041_SIAGEN_WATCHDOG);
return;
} else if (sc->tulip_media == TULIP_MEDIA_AUI) {
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_AUI);
TULIP_CSR_WRITE(sc, csr_sia_general, TULIP_DC21041_SIAGEN_AUI|TULIP_DC21041_SIAGEN_WATCHDOG);
return;
}
/*
* If we've been reset, the SIA is reset. Restart the probe.
*/
if (sc->tulip_probe_state == TULIP_PROBE_10BASET
&& (sc->tulip_flags & TULIP_INRESET))
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
/*
* Reset OACTIVE in case were being called from tulip_reset.
*/
sc->tulip_if.if_flags |= IFF_OACTIVE;
switch (sc->tulip_probe_state) {
case TULIP_PROBE_INACTIVE: {
sc->tulip_gpticks = 200;
sc->tulip_probe_state = TULIP_PROBE_10BASET;
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_10BASET);
if (sc->tulip_cmdmode & TULIP_CMD_FULLDUPLEX)
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_10BASET_FD);
else
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_10BASET);
TULIP_CSR_WRITE(sc, csr_sia_general, TULIP_DC21041_SIAGEN_10BASET|TULIP_DC21041_SIAGEN_WATCHDOG);
TULIP_CSR_WRITE(sc, csr_gp_timer, 12000000 / 204800); /* 120 ms */
TULIP_CSR_WRITE(sc, csr_status, TULIP_STS_GPTIMEOUT);
break;
}
case TULIP_PROBE_10BASET: {
if (--sc->tulip_gpticks > 0) {
if ((TULIP_CSR_READ(sc, csr_sia_status) & TULIP_SIASTS_OTHERRXACTIVITY) == 0) {
TULIP_CSR_WRITE(sc, csr_gp_timer, 12000000 / 204800); /* 120 ms */
break;
}
}
sc->tulip_gpticks = 4;
if (TULIP_CSR_READ(sc, csr_sia_status) & TULIP_SIASTS_OTHERRXACTIVITY) {
sc->tulip_probe_state = TULIP_PROBE_BNC;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_BNC);
TULIP_CSR_WRITE(sc, csr_sia_general, TULIP_DC21041_SIAGEN_BNC|TULIP_DC21041_SIAGEN_WATCHDOG);
TULIP_CSR_WRITE(sc, csr_sia_status, TULIP_SIASTS_OTHERRXACTIVITY);
TULIP_CSR_WRITE(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
} else {
sc->tulip_probe_state = TULIP_PROBE_AUI;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_AUI);
TULIP_CSR_WRITE(sc, csr_sia_general, TULIP_DC21041_SIAGEN_AUI|TULIP_DC21041_SIAGEN_WATCHDOG);
TULIP_CSR_WRITE(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);
sc->tulip_flags |= TULIP_LINKUP;
TULIP_CSR_WRITE(sc, csr_gp_timer, 0); /* disable */
if (sc->tulip_probe_state == TULIP_PROBE_AUI) {
if (sc->tulip_media != TULIP_MEDIA_AUI) {
sc->tulip_media = TULIP_MEDIA_AUI;
sc->tulip_flags |= TULIP_PRINTMEDIA;
}
} else if (sc->tulip_probe_state == TULIP_PROBE_BNC) {
if (sc->tulip_media != TULIP_MEDIA_BNC) {
sc->tulip_media = TULIP_MEDIA_BNC;
sc->tulip_flags |= TULIP_PRINTMEDIA;
}
}
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
break;
}
if ((sc->tulip_flags & TULIP_WANTRXACT) == 0
|| (TULIP_CSR_READ(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_CSR_WRITE(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_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
IF_PREPEND(&sc->tulip_if.if_snd, m);
tulip_ifstart(&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(TULIP_PRINTF_FMT ": autosense failed: cable problem?\n",
TULIP_PRINTF_ARGS);
}
}
/*
* 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_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_BNC);
TULIP_CSR_WRITE(sc, csr_sia_general, TULIP_DC21041_SIAGEN_BNC|TULIP_DC21041_SIAGEN_WATCHDOG);
TULIP_CSR_WRITE(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
} else {
sc->tulip_probe_state = TULIP_PROBE_AUI;
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_AUI);
TULIP_CSR_WRITE(sc, csr_sia_general, TULIP_DC21041_SIAGEN_AUI|TULIP_DC21041_SIAGEN_WATCHDOG);
TULIP_CSR_WRITE(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
}
break;
}
}
} else {
/*
* If the link has passed LinkPass, 10baseT is the
* proper media to use.
*/
if (sc->tulip_if.if_flags & IFF_FULLDUPLEX) {
if (sc->tulip_media != TULIP_MEDIA_10BASET_FD) {
sc->tulip_media = TULIP_MEDIA_10BASET_FD;
sc->tulip_flags |= TULIP_PRINTMEDIA;
sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX;
}
} else {
if (sc->tulip_media != TULIP_MEDIA_10BASET) {
sc->tulip_media = TULIP_MEDIA_10BASET;
sc->tulip_flags |= TULIP_PRINTMEDIA;
sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX;
}
}
if (sc->tulip_flags & (TULIP_INRESET|TULIP_PRINTMEDIA)) {
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_10BASET);
if (sc->tulip_cmdmode & TULIP_CMD_FULLDUPLEX)
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_10BASET_FD);
else
TULIP_CSR_WRITE(sc, csr_sia_tx_rx, TULIP_DC21041_SIATXRX_10BASET);
TULIP_CSR_WRITE(sc, csr_sia_general, TULIP_DC21041_SIAGEN_10BASET|TULIP_DC21041_SIAGEN_WATCHDOG);
}
TULIP_CSR_WRITE(sc, csr_gp_timer, 0); /* disable */
sc->tulip_gpticks = 0;
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
sc->tulip_flags |= TULIP_LINKUP;
sc->tulip_flags &= ~(TULIP_TXPROBE_OK|TULIP_TXPROBE_ACTIVE);
sc->tulip_if.if_flags &= ~IFF_OACTIVE;
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
}
if (sc->tulip_flags & TULIP_DEVICEPROBE) {
sc->tulip_flags |= TULIP_FAKEGPTIMEOUT;
} else {
TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask);
sc->tulip_flags &= ~TULIP_FAKEGPTIMEOUT;
}
}
static const tulip_boardsw_t tulip_dc21041_boardsw = {
TULIP_DC21041_GENERIC,
"",
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;
/*
* Brilliant. Simply brilliant. When switching modes/speeds
* on a DC2114*, you need to set the appriopriate MII/PCS/SCL/PS
* bits in CSR6 and then do a software reset to get the DC21140
* to properly reset its internal pathways to the right places.
* Grrrr.
*/
if (sc->tulip_boardsw->bd_media_preset != NULL)
(*sc->tulip_boardsw->bd_media_preset)(sc);
TULIP_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microseconds (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_flags &= ~(TULIP_NEEDRESET|TULIP_RXBUFSLOW);
sc->tulip_intrmask = 0;
TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask);
TULIP_CSR_WRITE(sc, csr_txlist, TULIP_KVATOPHYS(sc, &sc->tulip_txinfo.ri_first[0]));
TULIP_CSR_WRITE(sc, csr_rxlist, TULIP_KVATOPHYS(sc, &sc->tulip_rxinfo.ri_first[0]));
TULIP_CSR_WRITE(sc, csr_busmode,
(1 << (TULIP_BURSTSIZE(sc->tulip_unit) + 8))
|TULIP_BUSMODE_CACHE_ALIGN8
|(BYTE_ORDER != LITTLE_ENDIAN ? TULIP_BUSMODE_BIGENDIAN : 0));
sc->tulip_txtimer = 0;
sc->tulip_txq.ifq_maxlen = TULIP_TXDESCS;
sc->tulip_if.if_flags &= ~IFF_OACTIVE;
/*
* 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);
#ifdef TULIP_DEBUG
if ((sc->tulip_flags & (TULIP_DEVICEPROBE|TULIP_NEEDRESET)) == TULIP_NEEDRESET)
printf(TULIP_PRINTF_FMT ": tulip_reset: additional reset needed?!?\n",
TULIP_PRINTF_ARGS);
#endif
if ((sc->tulip_flags & (TULIP_LINKUP|TULIP_PRINTMEDIA)) == (TULIP_LINKUP|TULIP_PRINTMEDIA)) {
printf(TULIP_PRINTF_FMT ": enabling %s port\n",
TULIP_PRINTF_ARGS,
tulip_mediums[sc->tulip_media]);
sc->tulip_flags &= ~TULIP_PRINTMEDIA;
}
if (sc->tulip_chipid == TULIP_DC21041)
TULIP_CSR_WRITE(sc, csr_sia_status, TULIP_CSR_READ(sc, csr_sia_status));
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_RXACT);
tulip_addr_filter(sc);
}
static void
tulip_init(
tulip_softc_t * const sc)
{
if (sc->tulip_if.if_flags & IFF_UP) {
if ((sc->tulip_if.if_flags & IFF_RUNNING) == 0) {
/* initialize the media */
tulip_reset(sc);
}
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_ifstart(&sc->tulip_if);
}
TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask);
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
} else {
sc->tulip_if.if_flags &= ~IFF_RUNNING;
tulip_reset(sc);
}
}
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;
int fillok = 1;
#ifdef TULIP_DEBUG
int cnt = 0;
#endif
for (;;) {
struct ether_header eh;
tulip_desc_t *eop = ri->ri_nextin;
int total_len = 0, last_offset = 0;
struct mbuf *ms = NULL, *me = NULL;
int accept = 0;
if (fillok && sc->tulip_rxq.ifq_len < TULIP_RXQ_TARGET)
goto queue_mbuf;
#ifdef TULIP_DEBUG
if (cnt == ri->ri_max)
break;
#endif
/*
* If the TULIP has no descriptors, there can't be any receive
* descriptors to process.
*/
if (eop == ri->ri_nextout)
break;
/*
* 90% of the packets will fit in one descriptor. So we optimize
* for that case.
*/
if ((((volatile tulip_desc_t *) eop)->d_status & (TULIP_DSTS_OWNER|TULIP_DSTS_RxFIRSTDESC|TULIP_DSTS_RxLASTDESC)) == (TULIP_DSTS_RxFIRSTDESC|TULIP_DSTS_RxLASTDESC)) {
IF_DEQUEUE(&sc->tulip_rxq, ms);
me = ms;
} else {
/*
* If still owned by the TULIP, don't touch it.
*/
if (((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER)
break;
/*
* It is possible (though improbable unless the BIG_PACKET support
* is enabled or MCLBYTES < 1518) for a received packet to cross
* more than one receive descriptor.
*/
while ((((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_RxLASTDESC) == 0) {
if (++eop == ri->ri_last)
eop = ri->ri_first;
if (eop == ri->ri_nextout || ((((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER))) {
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_rxintrs++;
sc->tulip_dbg.dbg_rxpktsperintr[cnt]++;
#endif
return;
}
total_len++;
}
/*
* Dequeue the first buffer for the start of the packet. Hopefully
* this will be the only one we need to dequeue. However, if the
* packet consumed multiple descriptors, then we need to dequeue
* those buffers and chain to the starting mbuf. All buffers but
* the last buffer have the same length so we can set that now.
* (we add to last_offset instead of multiplying since we normally
* won't go into the loop and thereby saving a ourselves from
* doing a multiplication by 0 in the normal case).
*/
IF_DEQUEUE(&sc->tulip_rxq, ms);
for (me = ms; total_len > 0; total_len--) {
me->m_len = TULIP_RX_BUFLEN;
last_offset += TULIP_RX_BUFLEN;
IF_DEQUEUE(&sc->tulip_rxq, me->m_next);
me = me->m_next;
}
}
/*
* Now get the size of received packet (minus the CRC).
*/
total_len = ((eop->d_status >> 16) & 0x7FFF) - 4;
if ((eop->d_status & TULIP_DSTS_ERRSUM) == 0
#ifdef BIG_PACKET
|| (total_len <= sc->tulip_if.if_mtu + sizeof(struct ether_header) &&
(eop->d_status & (TULIP_DSTS_RxBADLENGTH|TULIP_DSTS_RxRUNT|
TULIP_DSTS_RxCOLLSEEN|TULIP_DSTS_RxBADCRC|
TULIP_DSTS_RxOVERFLOW)) == 0)
#endif
) {
me->m_len = total_len - last_offset;
eh = *mtod(ms, struct ether_header *);
#if NBPFILTER > 0
if (sc->tulip_bpf != NULL)
if (me == ms)
TULIP_BPF_TAP(sc, mtod(ms, caddr_t), total_len);
else
TULIP_BPF_MTAP(sc, ms);
#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;
sc->tulip_flags |= TULIP_RXACT;
total_len -= sizeof(struct ether_header);
} else {
ifp->if_ierrors++;
if (eop->d_status & (TULIP_DSTS_RxBADLENGTH|TULIP_DSTS_RxOVERFLOW|TULIP_DSTS_RxWATCHDOG)) {
sc->tulip_dot3stats.dot3StatsInternalMacReceiveErrors++;
} else {
const char *error = NULL;
if (eop->d_status & TULIP_DSTS_RxTOOLONG) {
sc->tulip_dot3stats.dot3StatsFrameTooLongs++;
error = "frame too long";
}
if (eop->d_status & TULIP_DSTS_RxBADCRC) {
if (eop->d_status & TULIP_DSTS_RxDRBBLBIT) {
sc->tulip_dot3stats.dot3StatsAlignmentErrors++;
error = "alignment error";
} else {
sc->tulip_dot3stats.dot3StatsFCSErrors++;
error = "bad crc";
}
}
if (error != NULL && (sc->tulip_flags & TULIP_NOMESSAGES) == 0) {
printf(TULIP_PRINTF_FMT ": receive: " TULIP_EADDR_FMT ": %s\n",
TULIP_PRINTF_ARGS,
TULIP_EADDR_ARGS(mtod(ms, u_char *) + 6),
error);
sc->tulip_flags |= TULIP_NOMESSAGES;
}
}
}
next:
#ifdef TULIP_DEBUG
cnt++;
#endif
ifp->if_ipackets++;
if (++eop == ri->ri_last)
eop = ri->ri_first;
ri->ri_nextin = eop;
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 it, send up it anyways. This may cause
* us to drop packets in the future but that's better than
* being caught in livelock.
*
* Note that if this packet crossed multiple descriptors
* we don't even try to reallocate all the mbufs here.
* Instead we rely on the test of the beginning of
* the loop to refill for the extra consumed mbufs.
*/
if (accept || ms == 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 defined(__bsdi__)
eh.ether_type = ntohs(eh.ether_type);
#endif
#if !defined(TULIP_COPY_RXDATA)
ms->m_data += sizeof(struct ether_header);
ms->m_len -= sizeof(struct ether_header);
ms->m_pkthdr.len = total_len;
ms->m_pkthdr.rcvif = ifp;
ether_input(ifp, &eh, ms);
#else
#ifdef BIG_PACKET
#error BIG_PACKET is incompatible with TULIP_COPY_RXDATA
#endif
if (ms == me)
bcopy(mtod(ms, caddr_t) + sizeof(struct ether_header),
mtod(m0, caddr_t), total_len);
else
m_copydata(ms, 0, total_len, mtod(m0, caddr_t));
m0->m_len = m0->m_pkthdr.len = total_len;
m0->m_pkthdr.rcvif = ifp;
ether_input(ifp, &eh, m0);
m0 = ms;
#endif
}
ms = m0;
}
if (ms == NULL) {
/*
* Couldn't allocate a new buffer. Don't bother
* trying to replenish the receive queue.
*/
fillok = 0;
sc->tulip_flags |= TULIP_RXBUFSLOW;
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_rxlowbufs++;
#endif
continue;
}
/*
* Now give the buffer(s) to the TULIP and save in our
* receive queue.
*/
do {
ri->ri_nextout->d_length1 = TULIP_RX_BUFLEN;
ri->ri_nextout->d_addr1 = TULIP_KVATOPHYS(sc, mtod(ms, caddr_t));
ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
if (++ri->ri_nextout == ri->ri_last)
ri->ri_nextout = ri->ri_first;
me = ms->m_next;
ms->m_next = NULL;
IF_ENQUEUE(&sc->tulip_rxq, ms);
} while ((ms = me) != NULL);
if (sc->tulip_rxq.ifq_len >= TULIP_RXQ_TARGET)
sc->tulip_flags &= ~TULIP_RXBUFSLOW;
}
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_rxintrs++;
sc->tulip_dbg.dbg_rxpktsperintr[cnt]++;
#endif
}
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_CSR_WRITE(sc, csr_status, TULIP_STS_RXSTOPPED);
if ((sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0)
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask);
}
} else {
tulip_desc_t * eop = ri->ri_nextin;
IF_DEQUEUE(&sc->tulip_txq, m);
m_freem(m);
xmits++;
if (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) {
if ((eop->d_status & (TULIP_DSTS_TxNOCARR|TULIP_DSTS_TxEXCCOLL)) == 0)
sc->tulip_flags |= TULIP_TXPROBE_OK;
(*sc->tulip_boardsw->bd_media_select)(sc);
if (sc->tulip_chipid == TULIP_DC21041)
TULIP_CSR_WRITE(sc, csr_sia_status, TULIP_CSR_READ(sc, csr_sia_status));
} else {
if (eop->d_status & TULIP_DSTS_ERRSUM) {
sc->tulip_if.if_oerrors++;
if (eop->d_status & TULIP_DSTS_TxEXCCOLL)
sc->tulip_dot3stats.dot3StatsExcessiveCollisions++;
if (eop->d_status & TULIP_DSTS_TxLATECOLL)
sc->tulip_dot3stats.dot3StatsLateCollisions++;
if (eop->d_status & (TULIP_DSTS_TxNOCARR|TULIP_DSTS_TxCARRLOSS))
sc->tulip_dot3stats.dot3StatsCarrierSenseErrors++;
if (eop->d_status & (TULIP_DSTS_TxUNDERFLOW|TULIP_DSTS_TxBABBLE))
sc->tulip_dot3stats.dot3StatsInternalMacTransmitErrors++;
} else {
tulip_uint32_t collisions =
(eop->d_status & TULIP_DSTS_TxCOLLMASK)
>> TULIP_DSTS_V_TxCOLLCNT;
sc->tulip_if.if_collisions += collisions;
if (collisions == 1)
sc->tulip_dot3stats.dot3StatsSingleCollisionFrames++;
else if (collisions > 1)
sc->tulip_dot3stats.dot3StatsMultipleCollisionFrames++;
else if (eop->d_status & TULIP_DSTS_TxDEFERRED)
sc->tulip_dot3stats.dot3StatsDeferredTransmissions++;
/*
* SQE is only valid for 10baseT/BNC/AUI when not
* running in full-duplex. In order to speed up the
* test, the corresponding bit in tulip_flags needs to
* set as well to get us to count SQE Test Errors.
*/
if (eop->d_status & TULIP_DSTS_TxNOHRTBT & sc->tulip_flags)
sc->tulip_dot3stats.dot3StatsSQETestErrors++;
}
}
}
}
if (++ri->ri_nextin == ri->ri_last)
ri->ri_nextin = ri->ri_first;
ri->ri_free++;
sc->tulip_if.if_flags &= ~IFF_OACTIVE;
}
/*
* If nothing left to transmit, disable the timer.
* Else if progress, reset the timer back to 2 ticks.
*/
if (ri->ri_free == ri->ri_max || (sc->tulip_flags & TULIP_TXPROBE_ACTIVE))
sc->tulip_txtimer = 0;
else if (xmits > 0)
sc->tulip_txtimer = TULIP_TXTIMER;
sc->tulip_if.if_opackets += xmits;
return xmits;
}
static void
tulip_print_abnormal_interrupt(
tulip_softc_t * const sc,
tulip_uint32_t csr)
{
const char * const *msgp = tulip_status_bits;
const char *sep;
csr &= (1 << (sizeof(tulip_status_bits)/sizeof(tulip_status_bits[0]))) - 1;
printf(TULIP_PRINTF_FMT ": abnormal interrupt:", TULIP_PRINTF_ARGS);
for (sep = " "; csr != 0; csr >>= 1, msgp++) {
if ((csr & 1) && *msgp != NULL) {
printf("%s%s", sep, *msgp);
sep = ", ";
}
}
printf("\n");
}
static void
tulip_intr_handler(
tulip_softc_t * const sc,
int *progress_p)
{
tulip_uint32_t csr;
while ((csr = TULIP_CSR_READ(sc, csr_status)) & sc->tulip_intrmask) {
*progress_p = 1;
TULIP_CSR_WRITE(sc, csr_status, csr);
if (csr & TULIP_STS_SYSERROR) {
sc->tulip_last_system_error = (csr & TULIP_STS_ERRORMASK) >> TULIP_STS_ERR_SHIFT;
if (sc->tulip_flags & TULIP_NOMESSAGES) {
sc->tulip_flags |= TULIP_SYSTEMERROR;
} else {
printf(TULIP_PRINTF_FMT ": system error: %s\n",
TULIP_PRINTF_ARGS,
tulip_system_errors[sc->tulip_last_system_error]);
}
sc->tulip_flags |= TULIP_NEEDRESET;
sc->tulip_system_errors++;
break;
}
if (csr & (TULIP_STS_GPTIMEOUT|TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL)) {
#if defined(TULIP_DEBUG)
sc->tulip_dbg.dbg_gpintrs++;
#endif
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;
TULIP_CSR_WRITE(sc, csr_sia_status, TULIP_CSR_READ(sc, csr_sia_status));
} else if (sc->tulip_chipid == TULIP_DC21140 || sc->tulip_chipid == TULIP_DC21140A) {
(*sc->tulip_boardsw->bd_media_select)(sc);
csr &= ~(TULIP_STS_ABNRMLINTR|TULIP_STS_GPTIMEOUT);
}
if ((sc->tulip_flags & (TULIP_LINKUP|TULIP_PRINTMEDIA)) == (TULIP_LINKUP|TULIP_PRINTMEDIA)) {
printf(TULIP_PRINTF_FMT ": enabling %s port\n",
TULIP_PRINTF_ARGS,
tulip_mediums[sc->tulip_media]);
sc->tulip_flags &= ~TULIP_PRINTMEDIA;
}
}
if (csr & TULIP_STS_ABNRMLINTR) {
tulip_uint32_t tmp = csr & sc->tulip_intrmask
& ~(TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR);
if (sc->tulip_flags & TULIP_NOMESSAGES) {
sc->tulip_statusbits |= tmp;
} else {
tulip_print_abnormal_interrupt(sc, tmp);
sc->tulip_flags |= TULIP_NOMESSAGES;
}
TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
}
if (csr & (TULIP_STS_RXINTR|TULIP_STS_RXNOBUF)) {
tulip_rx_intr(sc);
if (csr & TULIP_STS_RXNOBUF)
sc->tulip_dot3stats.dot3StatsMissedFrames +=
TULIP_CSR_READ(sc, csr_missed_frames) & 0xFFFF;
}
if (sc->tulip_txinfo.ri_free < sc->tulip_txinfo.ri_max) {
tulip_tx_intr(sc);
if ((sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0)
tulip_ifstart(&sc->tulip_if);
}
}
if (sc->tulip_flags & TULIP_NEEDRESET) {
tulip_reset(sc);
tulip_init(sc);
}
}
#if defined(TULIP_USE_SOFTINTR)
/*
* This is a experimental idea to alleviate problems due to interrupt
* livelock. What is interrupt livelock? It's when you spend all your
* time servicing device interrupts and never drop below device ipl
* to do "useful" work.
*
* So what we do here is see if the device needs service and if so,
* disable interrupts (dismiss the interrupt), place it in a list of devices
* needing service, and issue a network software interrupt.
*
* When our network software interrupt routine gets called, we simply
* walk done the list of devices that we have created and deal with them
* at splnet/splsoftnet.
*
*/
static void
tulip_hardintr_handler(
tulip_softc_t * const sc,
int *progress_p)
{
if (TULIP_CSR_READ(sc, csr_status) & (TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR) == 0)
return;
*progress_p = 1;
/*
* disable interrupts
*/
TULIP_CSR_WRITE(sc, csr_intr, 0);
/*
* mark it as needing a software interrupt
*/
tulip_softintr_mask |= (1U << sc->tulip_unit);
}
static void
tulip_softintr(
void)
{
tulip_uint32_t softintr_mask, mask;
int progress = 0;
int unit;
tulip_spl_t s;
/*
* Copy mask to local copy and reset global one to 0.
*/
s = splimp();
softintr_mask = tulip_softintr_mask;
tulip_softintr_mask = 0;
splx(s);
/*
* Optimize for the single unit case.
*/
if (tulip_softintr_max_unit == 0) {
if (softintr_mask & 1) {
tulip_softc_t * const sc = TULIP_UNIT_TO_SOFTC(0);
/*
* Handle the "interrupt" and then reenable interrupts
*/
tulip_intr_handler(sc, &progress);
TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask);
}
return;
}
/*
* Handle all "queued" interrupts in a round robin fashion.
* This is done so as not to favor a particular interface.
*/
unit = tulip_softintr_last_unit;
mask = (1U << unit);
while (softintr_mask != 0) {
if (tulip_softintr_max_unit == unit) {
unit = 0; mask = 1;
} else {
unit += 1; mask <<= 1;
}
if (softintr_mask & mask) {
tulip_softc_t * const sc = TULIP_UNIT_TO_SOFTC(unit);
/*
* Handle the "interrupt" and then reenable interrupts
*/
tulip_intr_handler(sc, &progress);
TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask);
softintr_mask ^= mask;
}
}
/*
* Save where we ending up.
*/
tulip_softintr_last_unit = unit;
}
#endif /* TULIP_USE_SOFTINTR */
static tulip_intrfunc_t
tulip_intr_shared(
void *arg)
{
tulip_softc_t * sc;
int progress = 0;
for (sc = (tulip_softc_t *) arg; sc != NULL; sc = sc->tulip_slaves) {
#if defined(TULIP_DEBUG)
sc->tulip_dbg.dbg_intrs++;
#endif
#if defined(TULIP_USE_SOFTINTR)
tulip_hardintr_handler(sc, &progress);
#else
tulip_intr_handler(sc, &progress);
#endif
}
#if defined(TULIP_USE_SOFTINTR)
if (progress)
schednetisr(NETISR_DE);
#endif
#if !defined(TULIP_VOID_INTRFUNC)
return progress;
#endif
}
static tulip_intrfunc_t
tulip_intr_normal(
void *arg)
{
tulip_softc_t * sc = (tulip_softc_t *) arg;
int progress = 0;
#if defined(TULIP_DEBUG)
sc->tulip_dbg.dbg_intrs++;
#endif
#if defined(TULIP_USE_SOFTINTR)
tulip_hardintr_handler(sc, &progress);
if (progress)
schednetisr(NETISR_DE);
#else
tulip_intr_handler(sc, &progress);
#endif
#if !defined(TULIP_VOID_INTRFUNC)
return progress;
#endif
}
/*
*
*/
static void
tulip_delay_300ns(
tulip_softc_t * const sc)
{
int idx;
for (idx = (300 / 33) + 1; idx > 0; idx--)
TULIP_CSR_READ(sc, csr_busmode);
}
#define EMIT do { TULIP_CSR_WRITE(sc, csr_srom_mii, csr); tulip_delay_300ns(sc); } while (0)
static void
tulip_srom_idle(
tulip_softc_t * const sc)
{
unsigned bit, csr;
csr = SROMSEL ; EMIT;
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;
csr = 0; EMIT;
}
static void
tulip_srom_read(
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_srom_idle(sc);
for (idx = 0; idx <= lastidx; idx++) {
unsigned lastbit, data, bits, bit, csr;
csr = SROMSEL ; EMIT;
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 */
} else {
EMIT;
}
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_CSR_READ(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;
}
tulip_srom_idle(sc);
}
#define MII_EMIT do { TULIP_CSR_WRITE(sc, csr_srom_mii, csr); tulip_delay_300ns(sc); } while (0)
static void
tulip_mii_sendbits(
tulip_softc_t * const sc,
unsigned data,
unsigned bits)
{
unsigned msb = 1 << (bits - 1);
unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK);
unsigned lastbit = (csr & MII_DOUT) ? msb : 0;
csr |= MII_WR; MII_EMIT; /* clock low; assert write */
for (; bits > 0; bits--, data <<= 1) {
const unsigned thisbit = data & msb;
if (thisbit != lastbit) {
csr ^= MII_DOUT; MII_EMIT; /* clock low; invert data */
}
csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */
lastbit = thisbit;
csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */
}
}
static void
tulip_mii_turnaround(
tulip_softc_t * const sc,
unsigned cmd)
{
unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK);
if (cmd == MII_WRCMD) {
csr |= MII_DOUT; MII_EMIT; /* clock low; change data */
csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */
csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */
csr ^= MII_DOUT; MII_EMIT; /* clock low; change data */
} else {
csr |= MII_RD; MII_EMIT; /* clock low; switch to read */
}
csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */
csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */
}
static unsigned
tulip_mii_readbits(
tulip_softc_t * const sc)
{
unsigned data;
unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK);
int idx;
for (idx = 0, data = 0; idx < 16; idx++) {
data <<= 1; /* this is NOOP on the first pass through */
csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */
if (TULIP_CSR_READ(sc, csr_srom_mii) & MII_DIN)
data |= 1;
csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */
}
csr ^= MII_RD; MII_EMIT; /* clock low; turn off read */
return data;
}
static unsigned
tulip_mii_readreg(
tulip_softc_t * const sc,
unsigned devaddr,
unsigned regno)
{
unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK);
unsigned data;
csr &= ~(MII_RD|MII_CLK); MII_EMIT;
tulip_mii_sendbits(sc, MII_PREAMBLE, 32);
tulip_mii_sendbits(sc, MII_RDCMD, 8);
tulip_mii_sendbits(sc, devaddr, 5);
tulip_mii_sendbits(sc, regno, 5);
tulip_mii_turnaround(sc, MII_RDCMD);
data = tulip_mii_readbits(sc);
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_phyregs[regno][0] = data;
sc->tulip_dbg.dbg_phyregs[regno][1]++;
#endif
return data;
}
static void
tulip_mii_writereg(
tulip_softc_t * const sc,
unsigned devaddr,
unsigned regno,
unsigned data)
{
unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK);
csr &= ~(MII_RD|MII_CLK); MII_EMIT;
tulip_mii_sendbits(sc, MII_PREAMBLE, 32);
tulip_mii_sendbits(sc, MII_WRCMD, 8);
tulip_mii_sendbits(sc, devaddr, 5);
tulip_mii_sendbits(sc, regno, 5);
tulip_mii_turnaround(sc, MII_WRCMD);
tulip_mii_sendbits(sc, data, 16);
#ifdef TULIP_DEBUG
sc->tulip_dbg.dbg_phyregs[regno][2] = data;
sc->tulip_dbg.dbg_phyregs[regno][3]++;
#endif
}
#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;
}
static void
tulip_identify_smc_nic(
tulip_softc_t *sc)
{
tulip_uint32_t id1, id2, ei;
int auibnc = 0, utp = 0;
char *cp;
if (sc->tulip_chipid == TULIP_DC21041)
return;
if (sc->tulip_chipid == TULIP_DC21140) {
sc->tulip_boardsw = &tulip_dc21140_smc9332_boardsw;
return;
}
id1 = sc->tulip_rombuf[0x60] | (sc->tulip_rombuf[0x61] << 8);
id2 = sc->tulip_rombuf[0x62] | (sc->tulip_rombuf[0x63] << 8);
ei = sc->tulip_rombuf[0x66] | (sc->tulip_rombuf[0x67] << 8);
strcpy(sc->tulip_boardidbuf, "SMC 8432");
cp = &sc->tulip_boardidbuf[8];
if ((id1 & 1) == 0)
*cp++ = 'B', auibnc = 1;
if ((id1 & 0xFF) > 0x32)
*cp++ = 'T', utp = 1;
if ((id1 & 0x4000) == 0)
*cp++ = 'A', auibnc = 1;
if (id2 == 0x15) {
sc->tulip_boardidbuf[7] = '4';
*cp++ = '-';
*cp++ = 'C';
*cp++ = 'H';
*cp++ = (ei ? '2' : '1');
}
*cp++ = ' ';
*cp = '\0';
if (utp && !auibnc)
sc->tulip_boardsw = &tulip_dc21040_10baset_only_boardsw;
else if (!utp && auibnc)
sc->tulip_boardsw = &tulip_dc21040_auibnc_only_boardsw;
}
/*
* 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_CSR_WRITE(sc, csr_enetrom, 1);
for (idx = 0; idx < sizeof(sc->tulip_rombuf); idx++) {
int cnt = 0;
while (((csr = TULIP_CSR_READ(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_CSR_READBYTE(sc, csr_enetrom);
if (tmpbuf[idx] == testpat[idx])
++idx;
else
idx = 0;
}
for (idx = 0; idx < 32; idx++)
sc->tulip_rombuf[idx] = TULIP_CSR_READBYTE(sc, csr_enetrom);
sc->tulip_boardsw = &tulip_dc21040_boardsw;
#endif /* TULIP_EISA */
} else {
int new_srom_fmt = 0;
/*
* Thankfully all DC21041's act the same.
* 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_DC21041)
sc->tulip_boardsw = &tulip_dc21041_boardsw;
else
sc->tulip_boardsw = &tulip_dc21140_eb_boardsw;
tulip_srom_read(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) {
int copy_name = 0;
/*
* 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_de500xa_boardsw;
copy_name = 1;
} else if (bcmp(sc->tulip_rombuf + 29, "DE500-AA", 8) == 0) {
sc->tulip_boardsw = &tulip_dc21140_de500aa_boardsw;
copy_name = 1;
} else if (bcmp(sc->tulip_rombuf + 29, "DE450", 5) == 0) {
copy_name = 1;
}
if (copy_name) {
bcopy(sc->tulip_rombuf + 29, sc->tulip_boardidbuf, 8);
sc->tulip_boardidbuf[8] = ' ';
sc->tulip_boardid = sc->tulip_boardidbuf;
}
if (sc->tulip_boardsw == NULL)
return -6;
goto check_oui;
}
}
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???) (well sometimes they put in a checksum so we'll
* start at 8).
*/
for (idx = 8; 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;
goto check_oui;
} 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;
sc->tulip_flags |= TULIP_SLAVEDINTR;
}
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_int16_t *) &sc->tulip_hwaddr[0];
cksum *= 2;
if (cksum > 65535) cksum -= 65535;
cksum += *(u_int16_t *) &sc->tulip_hwaddr[2];
if (cksum > 65535) cksum -= 65535;
cksum *= 2;
if (cksum > 65535) cksum -= 65535;
cksum += *(u_int16_t *) &sc->tulip_hwaddr[4];
if (cksum >= 65535) cksum -= 65535;
rom_cksum = *(u_int16_t *) &sc->tulip_rombuf[6];
if (cksum != rom_cksum)
return -1;
check_oui:
/*
* Check for various boards based on OUI. Did I say braindead?
*/
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_chipid == TULIP_DC21140 || sc->tulip_chipid == TULIP_DC21140A) {
if (sc->tulip_rombuf[32] == TULIP_COGENT_EM100_ID)
sc->tulip_boardsw = &tulip_dc21140_cogent_em100_boardsw;
}
} else 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) {
if (sc->tulip_chipid == TULIP_DC21140 || sc->tulip_chipid == TULIP_DC21140A) {
/* this at least works for the zx342 from Znyx */
sc->tulip_boardsw = &tulip_dc21140_znyx_zx34x_boardsw;
} else if (sc->tulip_chipid == TULIP_DC21040
&& (sc->tulip_hwaddr[3] & ~3) == 0xF0
&& (sc->tulip_hwaddr[5] & 3) == 0) {
sc->tulip_boardsw = &tulip_dc21040_zx314_master_boardsw;
sc->tulip_flags |= TULIP_SHAREDINTR;
}
} else if (sc->tulip_hwaddr[0] == TULIP_OUI_SMC_0
&& sc->tulip_hwaddr[1] == TULIP_OUI_SMC_1
&& sc->tulip_hwaddr[2] == TULIP_OUI_SMC_2) {
tulip_identify_smc_nic(sc);
}
if (sc->tulip_boardidbuf[0] != '\0')
sc->tulip_boardid = sc->tulip_boardidbuf;
else
sc->tulip_boardid = sc->tulip_boardsw->bd_description;
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 = 0;
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_int16_t *) sc->tulip_ac.ac_enaddr)[0];
sp[40] = ((u_int16_t *) sc->tulip_ac.ac_enaddr)[1];
sp[41] = ((u_int16_t *) sc->tulip_ac.ac_enaddr)[2];
} else {
/*
* Else can get perfect filtering for 16 addresses.
*/
ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm);
for (; enm != NULL; i++) {
*sp++ = ((u_int16_t *) enm->enm_addrlo)[0];
*sp++ = ((u_int16_t *) enm->enm_addrlo)[1];
*sp++ = ((u_int16_t *) 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_int16_t *) sc->tulip_ac.ac_enaddr)[0];
*sp++ = ((u_int16_t *) sc->tulip_ac.ac_enaddr)[1];
*sp++ = ((u_int16_t *) sc->tulip_ac.ac_enaddr)[2];
}
}
}
/*
* This routine is entered at splnet() and thereby imposes no problems
* when TULIP_USE_SOFTINTR is defined or not.
*/
static int
tulip_ifioctl(
struct ifnet * const ifp,
ioctl_cmd_t cmd,
caddr_t data)
{
tulip_softc_t * const sc = TULIP_IFP_TO_SOFTC(ifp);
struct ifreq *ifr = (struct ifreq *) data;
tulip_spl_t s;
int error = 0;
#if defined(TULIP_USE_SOFTINTR)
s = splnet();
#else
s = splimp();
#endif
switch (cmd) {
case SIOCSIFADDR:
case SIOCGIFADDR:
ether_ioctl(ifp, cmd, data);
break;
case SIOCSIFFLAGS: {
/*
* Changing the connection forces a reset.
*/
if (sc->tulip_flags & TULIP_ALTPHYS) {
if ((ifp->if_flags & IFF_ALTPHYS) == 0) {
sc->tulip_flags |= TULIP_NEEDRESET;
}
} else {
if (ifp->if_flags & IFF_ALTPHYS) {
sc->tulip_flags |= TULIP_NEEDRESET;
}
}
if (sc->tulip_flags & TULIP_NEEDRESET) {
sc->tulip_media = TULIP_MEDIA_UNKNOWN;
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
sc->tulip_flags &= ~(TULIP_TXPROBE_ACTIVE|TULIP_TXPROBE_OK|TULIP_WANTRXACT);
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
#ifdef BIG_PACKET
&& sc->tulip_chipid != TULIP_DC21140
&& sc->tulip_chipid != TULIP_DC21140A
&& sc->tulip_chipid != TULIP_DC21041
#endif
) {
error = EINVAL;
break;
}
ifp->if_mtu = ifr->ifr_mtu;
#ifdef BIG_PACKET
tulip_reset(sc);
tulip_init(sc);
#endif
break;
#endif /* SIOCSIFMTU */
default: {
error = EINVAL;
break;
}
}
splx(s);
return error;
}
/*
* This routine gets called at splimp (from ether_output). This might pose
* a problem for TULIP_USE_SOFTINTR if ether_output is called at splimp
* from another driver.
*/
static ifnet_ret_t
tulip_ifstart(
struct ifnet * const ifp)
{
tulip_softc_t * const sc = TULIP_IFP_TO_SOFTC(ifp);
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 = TULIP_KVATOPHYS(sc, sc->tulip_setupbuf);
ri->ri_nextout->d_length2 = 0;
ri->ri_nextout->d_addr2 = 0;
ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
TULIP_CSR_WRITE(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;
#if defined(TULIP_DEBUG)
if ((sc->tulip_cmdmode & TULIP_CMD_TXRUN) == 0) {
printf(TULIP_PRINTF_FMT ": ifstart%s: tx not running\n",
TULIP_PRINTF_ARGS,
(sc->tulip_flags & TULIP_TXPROBE_ACTIVE) ? "(probe)" : "");
ifp->if_flags |= IFF_OACTIVE;
IF_PREPEND(ifq, m);
return;
}
#endif
/*
* 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 = CLBYTES - (((u_long) addr) & (CLBYTES-1));
next_m0 = m0->m_next;
while (len > 0) {
unsigned slen = min(len, clsize);
#ifdef BIG_PACKET
int partial = 0;
if (slen >= 2048)
slen = 2040, partial = 1;
#endif
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 = TULIP_KVATOPHYS(sc, addr);
eop->d_length1 = slen;
} else {
/*
* Fill in second half of descriptor
*/
eop->d_addr2 = TULIP_KVATOPHYS(sc, addr);
eop->d_length2 = slen;
}
d_status = TULIP_DSTS_OWNER;
len -= slen;
addr += slen;
#ifdef BIG_PACKET
if (partial)
continue;
#endif
clsize = CLBYTES;
}
} 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)
TULIP_BPF_MTAP(sc, 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_CSR_WRITE(sc, csr_txpoll, 1);
if (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) {
ifp->if_flags |= IFF_OACTIVE;
return;
}
if (sc->tulip_txtimer == 0)
sc->tulip_txtimer = TULIP_TXTIMER;
}
if (m != NULL) {
ifp->if_flags |= IFF_OACTIVE;
IF_PREPEND(ifq, m);
}
}
/*
* Even though this routine runs at splimp, it does not break
* our use of splnet (splsoftnet under NetBSD) for the majority
* of this driver (if TULIP_USE_SOFTINTR defined) since
* if_watcbog is called from if_watchdog which is called from
* splsoftclock which is below splnet.
*/
static void
tulip_ifwatchdog(
struct ifnet *ifp)
{
tulip_softc_t * const sc = TULIP_IFP_TO_SOFTC(ifp);
#if defined(TULIP_DEBUG)
tulip_uint32_t rxintrs = sc->tulip_dbg.dbg_rxintrs - sc->tulip_dbg.dbg_last_rxintrs;
if (rxintrs > sc->tulip_dbg.dbg_high_rxintrs_hz)
sc->tulip_dbg.dbg_high_rxintrs_hz = rxintrs;
sc->tulip_dbg.dbg_last_rxintrs = sc->tulip_dbg.dbg_rxintrs;
sc->tulip_dbg.dbg_gpintrs_hz = sc->tulip_dbg.dbg_gpintrs;
sc->tulip_dbg.dbg_gpintrs = 0;
#endif /* TULIP_DEBUG */
sc->tulip_if.if_timer = 1;
/*
* These should be rare so do a bulk test up front so we can just skip
* them if needed.
*/
if (sc->tulip_flags & (TULIP_SYSTEMERROR|TULIP_RXBUFSLOW|TULIP_FAKEGPTIMEOUT|TULIP_NOMESSAGES)) {
/*
* This for those devices that need to autosense. Interrupts are not
* allowed during device probe so we fake one here to start the
* autosense. Do this before the others since it can effect their
* state.
*/
if (sc->tulip_flags & TULIP_FAKEGPTIMEOUT)
(*sc->tulip_boardsw->bd_media_select)(sc);
/*
* If the number of receive buffer is low, try to refill
*/
if (sc->tulip_flags & TULIP_RXBUFSLOW)
tulip_rx_intr(sc);
if (sc->tulip_flags & TULIP_SYSTEMERROR) {
printf(TULIP_PRINTF_FMT ": %d system errors: last was %s\n",
TULIP_PRINTF_ARGS, sc->tulip_system_errors,
tulip_system_errors[sc->tulip_last_system_error]);
}
if (sc->tulip_statusbits) {
tulip_print_abnormal_interrupt(sc, sc->tulip_statusbits);
sc->tulip_statusbits = 0;
}
sc->tulip_flags &= ~(TULIP_NOMESSAGES|TULIP_SYSTEMERROR);
}
if (sc->tulip_txtimer && --sc->tulip_txtimer == 0) {
printf(TULIP_PRINTF_FMT ": transmission timeout\n", TULIP_PRINTF_ARGS);
sc->tulip_media = TULIP_MEDIA_UNKNOWN;
sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
sc->tulip_flags &= ~(TULIP_TXPROBE_ACTIVE|TULIP_TXPROBE_OK|TULIP_WANTRXACT|TULIP_LINKUP|TULIP_LINKSUSPECT);
tulip_reset(sc);
tulip_init(sc);
}
}
#if defined(__bsdi__) || (defined(__FreeBSD__) && BSD < 199506)
static ifnet_ret_t
tulip_ifwatchdog_wrapper(
int unit)
{
tulip_ifwatchdog(&TULIP_UNIT_TO_SOFTC(unit)->tulip_if);
}
#define tulip_ifwatchdog tulip_ifwatchdog_wrapper
#endif
/*
* All printf's are real as of now!
*/
#ifdef printf
#undef printf
#endif
#if !defined(IFF_NOTRAILERS)
#define IFF_NOTRAILERS 0
#endif
static void
tulip_attach(
tulip_softc_t * const sc)
{
struct ifnet * const ifp = &sc->tulip_if;
ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
ifp->if_ioctl = tulip_ifioctl;
ifp->if_start = tulip_ifstart;
ifp->if_watchdog = tulip_ifwatchdog;
ifp->if_init = (if_init_f_t*)tulip_init;
ifp->if_timer = 1;
#if !defined(__bsdi__) || _BSDI_VERSION < 199401
ifp->if_output = ether_output;
#endif
#if defined(__bsdi__) && _BSDI_VERSION < 199401
ifp->if_mtu = ETHERMTU;
#endif
#if defined(__bsdi__) && _BSDI_VERSION >= 199510
aprint_naive(": DEC Ethernet");
aprint_normal(": %s%s", sc->tulip_boardid,
tulip_chipdescs[sc->tulip_chipid]);
aprint_verbose(" pass %d.%d", (sc->tulip_revinfo & 0xF0) >> 4,
sc->tulip_revinfo & 0x0F);
printf("\n");
sc->tulip_pf = aprint_normal;
aprint_normal(TULIP_PRINTF_FMT ": address " TULIP_EADDR_FMT "\n",
TULIP_PRINTF_ARGS,
TULIP_EADDR_ARGS(sc->tulip_hwaddr));
#else
printf(
#if defined(__bsdi__)
"\n"
#endif
TULIP_PRINTF_FMT ": %s%s pass %d.%d\n",
TULIP_PRINTF_ARGS,
sc->tulip_boardid,
tulip_chipdescs[sc->tulip_chipid],
(sc->tulip_revinfo & 0xF0) >> 4,
sc->tulip_revinfo & 0x0F);
printf(TULIP_PRINTF_FMT ": address " TULIP_EADDR_FMT "\n",
TULIP_PRINTF_ARGS,
TULIP_EADDR_ARGS(sc->tulip_hwaddr));
#endif
sc->tulip_dot3stats.dot3Compliance = DOT3COMPLIANCE_STATS;
sc->tulip_dot3stats.dot3StatsEtherChipSet =
tulip_chip2mib[sc->tulip_chipid];
if (sc->tulip_boardsw->bd_mii_probe != NULL)
(*sc->tulip_boardsw->bd_mii_probe)(sc);
if ((*sc->tulip_boardsw->bd_media_probe)(sc)) {
ifp->if_flags |= IFF_ALTPHYS;
} else {
sc->tulip_flags |= TULIP_ALTPHYS;
}
sc->tulip_flags |= TULIP_DEVICEPROBE;
tulip_reset(sc);
sc->tulip_flags &= ~TULIP_DEVICEPROBE;
ifp->if_linkmib = &sc->tulip_dot3stats;
ifp->if_linkmiblen = sizeof sc->tulip_dot3stats;
#if defined(__bsdi__) && _BSDI_VERSION >= 199510
sc->tulip_pf = printf;
ether_attach(ifp);
#else
if_attach(ifp);
#if defined(__NetBSD__) || (defined(__FreeBSD__) && BSD >= 199506)
ether_ifattach(ifp);
#endif
#endif /* __bsdi__ */
#if NBPFILTER > 0
TULIP_BPF_ATTACH(sc);
#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_frames = 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_chipid == TULIP_DC21140A) {
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 void
tulip_shutdown(
int howto,
void *sc)
{
TULIP_CSR_WRITE((tulip_softc_t *) sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microseconds (actually 50 PCI cycles but at
33MHz that comes to two microseconds but wait a
bit longer anyways) */
}
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) {
tulip_uint32_t revinfo = pci_conf_read(config_id, PCI_CFRV) & 0xFF;
if (revinfo >= 0x20)
return "Digital DC21140A Fast Ethernet";
else
return "Digital DC21140 Fast Ethernet";
}
return NULL;
}
static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS);
static u_long tulip_pci_count;
struct pci_device dedevice = {
"de",
tulip_pci_probe,
tulip_pci_attach,
&tulip_pci_count,
NULL
};
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_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microseconds (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 _BSDI_VERSION >= 199401
switch (ia->ia_bustype) {
case BUS_PCI:
#endif
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 _BSDI_VERSION >= 199401
break;
#if defined(TULIP_EISA)
case BUS_EISA: {
unsigned tmp;
if ((slot = eisa_match(cf, ia)) == 0)
return 0;
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;
break;
}
#endif /* TULIP_EISA */
default:
return 0;
}
#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 = irq;
#ifdef IRQSHARE
ia->ia_irq |= IRQSHARE;
#endif
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,
#if _BSDI_VERSION >= 199401
DV_IFNET,
#endif
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_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10); /* Wait 10 microseconds (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 cfattach de_ca = {
sizeof(tulip_softc_t), tulip_pci_probe, tulip_pci_attach
};
struct cfdriver de_cd = {
0, "de", DV_IFNET
};
#endif /* __NetBSD__ */
static void
tulip_pci_attach(
TULIP_PCI_ATTACH_ARGS)
{
#if defined(__FreeBSD__)
tulip_softc_t *sc;
#define PCI_CONF_WRITE(r, v) pci_conf_write(config_id, (r), (v))
#define PCI_CONF_READ(r) pci_conf_read(config_id, (r))
#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;
const int unit = sc->tulip_dev.dv_unit;
#define PCI_CONF_WRITE(r, v) pci_outl(pa, (r), (v))
#define PCI_CONF_READ(r) pci_inl(pa, (r))
#endif
#if defined(__NetBSD__)
tulip_softc_t * const sc = (tulip_softc_t *) self;
struct pci_attach_args * const pa = (struct pci_attach_args *) aux;
const int unit = sc->tulip_dev.dv_unit;
#if defined(TULIP_IOMAPPED)
bus_io_addr_t iobase;
bus_io_size_t iosize;
#else
bus_mem_addr_t membase;
bus_mem_size_t memsize;
#endif
#define PCI_CONF_WRITE(r, v) pci_conf_write(pa->pa_pc, pa->pa_tag, (r), (v))
#define PCI_CONF_READ(r) pci_conf_read(pa->pa_pc, pa->pa_tag, (r))
#endif /* __NetBSD__ */
int retval, idx;
tulip_uint32_t revinfo, cfdainfo, id;
#if !defined(TULIP_IOMAPPED) && defined(__FreeBSD__)
vm_offset_t pa_csrs;
#endif
unsigned csroffset = TULIP_PCI_CSROFFSET;
unsigned csrsize = TULIP_PCI_CSRSIZE;
tulip_csrptr_t csr_base;
tulip_chipid_t chipid = TULIP_CHIPID_UNKNOWN;
if (unit >= TULIP_MAX_DEVICES) {
#ifdef __FreeBSD__
printf("de%d", unit);
#endif
printf(": not configured; limit of %d reached or exceeded\n",
TULIP_MAX_DEVICES);
return;
}
#if defined(__bsdi__)
if (pa != NULL) {
revinfo = pci_inl(pa, PCI_CFRV) & 0xFF;
id = pci_inl(pa, PCI_CFID);
cfdainfo = pci_inl(pa, PCI_CFDA);
#if defined(TULIP_EISA)
} else {
revinfo = inl(ia->ia_iobase + DE425_CFRV) & 0xFF;
csroffset = TULIP_EISA_CSROFFSET;
csrsize = TULIP_EISA_CSRSIZE;
chipid = TULIP_DE425;
cfdainfo = 0;
#endif
}
#else /* __bsdi__ */
revinfo = PCI_CONF_READ(PCI_CFRV) & 0xFF;
id = PCI_CONF_READ(PCI_CFID);
cfdainfo = PCI_CONF_READ(PCI_CFDA);
#endif
if (PCI_VENDORID(id) == DEC_VENDORID) {
if (PCI_CHIPID(id) == DC21040_CHIPID) chipid = TULIP_DC21040;
else if (PCI_CHIPID(id) == DC21140_CHIPID) {
chipid = (revinfo >= 0x20) ? TULIP_DC21140A : 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) {
#ifndef __FreeBSD__
printf("\n");
#endif
printf("de%d: not configured; DC21140 pass 1.1 required (%d.%d found)\n",
unit, revinfo >> 4, revinfo & 0x0f);
return;
}
if ((chipid == TULIP_DC21041 || chipid == TULIP_DC21140A)
&& (cfdainfo & (TULIP_CFDA_SLEEP|TULIP_CFDA_SNOOZE))) {
cfdainfo &= ~(TULIP_CFDA_SLEEP|TULIP_CFDA_SNOOZE);
PCI_CONF_WRITE(PCI_CFDA, cfdainfo);
printf("de%d: waking device from sleep/snooze mode\n", unit);
DELAY(11*1000);
}
#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
sc->tulip_chipid = chipid;
#if defined(__NetBSD__)
bcopy(self->dv_xname, sc->tulip_if.if_xname, IFNAMSIZ);
sc->tulip_if.if_softc = sc;
sc->tulip_bc = pa->pa_bc;
sc->tulip_pc = pa->pa_pc;
#else
sc->tulip_unit = unit;
sc->tulip_name = "de";
#endif
sc->tulip_revinfo = revinfo;
#if defined(__FreeBSD__)
#if BSD >= 199506
sc->tulip_if.if_softc = sc;
#endif
#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) 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__)
csr_base = 0;
#if defined(TULIP_IOMAPPED)
if (pci_io_find(pa->pa_pc, pa->pa_tag, PCI_CBIO, &iobase, &iosize)
|| bus_io_map(pa->pa_bc, iobase, iosize, &sc->tulip_ioh))
return;
#else
if (pci_mem_find(pa->pa_pc, pa->pa_tag, PCI_CBMA, &membase, &memsize, NULL)
|| bus_mem_map(pa->pa_bc, membase, memsize, 0, &sc->tulip_memh))
return;
#endif
#endif /* __NetBSD__ */
tulip_initcsrs(sc, csr_base + csroffset, csrsize);
tulip_initring(sc, &sc->tulip_rxinfo, sc->tulip_rxdescs, TULIP_RXDESCS);
tulip_initring(sc, &sc->tulip_txinfo, sc->tulip_txdescs, TULIP_TXDESCS);
/*
* Make sure there won't be any interrupts or such...
*/
TULIP_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(100); /* Wait 10 microseconds (actually 50 PCI cycles but at
33MHz that comes to two microseconds but wait a
bit longer anyways) */
if ((retval = tulip_read_macaddr(sc)) < 0) {
#ifdef __FreeBSD__
printf(TULIP_PRINTF_FMT, TULIP_PRINTF_ARGS);
#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(TULIP_PRINTF_FMT ": %s%s pass %d.%d\n",
TULIP_PRINTF_ARGS,
(sc->tulip_boardid != NULL ? sc->tulip_boardid : ""),
tulip_chipdescs[sc->tulip_chipid],
(sc->tulip_revinfo & 0xF0) >> 4, sc->tulip_revinfo & 0x0F);
printf(TULIP_PRINTF_FMT ": address unknown\n", TULIP_PRINTF_ARGS);
} else {
int s;
tulip_intrfunc_t (*intr_rtn)(void *) = tulip_intr_normal;
if (sc->tulip_flags & TULIP_SHAREDINTR)
intr_rtn = tulip_intr_shared;
#if defined(__NetBSD__)
if ((sc->tulip_flags & TULIP_SLAVEDINTR) == 0) {
pci_intr_handle_t intrhandle;
const char *intrstr;
if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
pa->pa_intrline, &intrhandle)) {
printf(": couldn't map interrupt\n");
return;
}
intrstr = pci_intr_string(pa->pa_pc, intrhandle);
sc->tulip_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_NET,
intr_rtn, sc);
if (sc->tulip_ih == NULL)
printf(": couldn't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
if (sc->tulip_ih == NULL)
return;
}
sc->tulip_ats = shutdownhook_establish(tulip_pci_shutdown, sc);
if (sc->tulip_ats == NULL)
printf("\n%s: warning: couldn't establish shutdown hook\n",
sc->tulip_xname);
#endif
#if defined(__FreeBSD__)
if ((sc->tulip_flags & TULIP_SLAVEDINTR) == 0) {
if (!pci_map_int (config_id, intr_rtn, (void*) sc, &net_imask)) {
printf(TULIP_PRINTF_FMT ": couldn't map interrupt\n",
TULIP_PRINTF_ARGS);
return;
}
}
at_shutdown(tulip_shutdown, sc, SHUTDOWN_POST_SYNC);
#endif
#if defined(__bsdi__)
if ((sc->tulip_flags & TULIP_SLAVEDINTR) == 0) {
isa_establish(&sc->tulip_id, &sc->tulip_dev);
sc->tulip_ih.ih_fun = intr_rtn;
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
#if defined(TULIP_USE_SOFTINTR)
if (sc->tulip_unit > tulip_softintr_max_unit)
tulip_softintr_max_unit = sc->tulip_unit;
#endif
#if defined(TULIP_DEBUG)
if (sc->tulip_chipid == TULIP_DC21041) {
TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
DELAY(1000);
PCI_CONF_WRITE(PCI_CFDA, TULIP_CFDA_SLEEP);
DELAY(20000);
PCI_CONF_WRITE(PCI_CFDA, 0);
DELAY(20000);
}
#endif
s = splimp();
tulip_reset(sc);
tulip_attach(sc);
splx(s);
}
}
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