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src/sys/dev/pci/if_dc_pci.c

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/* $OpenBSD: if_dc_pci.c,v 1.78 2022/03/11 18:00:45 mpi Exp $ */
/*
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: src/sys/pci/if_dc.c,v 1.5 2000/01/12 22:24:05 wpaul Exp $
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/timeout.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <net/if_media.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#include <dev/mii/miivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#ifdef __sparc64__
#include <dev/ofw/openfirm.h>
#endif
#ifndef __hppa__
#define DC_USEIOSPACE
#endif
#include <dev/ic/dcreg.h>
/*
* Various supported device vendors/types and their names.
*/
struct dc_type dc_devs[] = {
{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21140 },
{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21142 },
{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9009 },
{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9100 },
{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9102 },
{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM9511 },
{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM9513 },
{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AL981 },
{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN983 },
{ PCI_VENDOR_ASIX, PCI_PRODUCT_ASIX_AX88140A },
{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98713 },
{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98715 },
{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98727 },
{ PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_98713 },
{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNIC },
{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNICII },
{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN1217 },
{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN2242 },
{ PCI_VENDOR_CONEXANT, PCI_PRODUCT_CONEXANT_RS7112 },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_21145 },
{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CSHO100BTX },
{ PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN130 },
{ PCI_VENDOR_XIRCOM, PCI_PRODUCT_XIRCOM_X3201_3_21143 },
{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN985 },
{ PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2500 },
{ PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2500MX },
{ PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_PCM200 },
{ PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DRP32TXD },
{ PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCMPC200 },
{ PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCM200 },
{ PCI_VENDOR_HAWKING, PCI_PRODUCT_HAWKING_PN672TX },
{ PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN120 },
{ 0, 0 }
};
int dc_pci_match(struct device *, void *, void *);
void dc_pci_attach(struct device *, struct device *, void *);
int dc_pci_detach(struct device *, int);
struct dc_pci_softc {
struct dc_softc psc_softc;
pci_chipset_tag_t psc_pc;
bus_size_t psc_mapsize;
};
/*
* Probe for a 21143 or clone chip. Check the PCI vendor and device
* IDs against our list and return a device name if we find a match.
*/
int
dc_pci_match(struct device *parent, void *match, void *aux)
{
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
struct dc_type *t;
/*
* Support for the 21140 chip is experimental. If it works for you,
* that's great. By default, this chip will use de.
*/
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140)
return (1);
/*
* The following chip revision doesn't seem to work so well with dc,
* so let's have de handle it. (de will return a match of 2)
*/
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142 &&
PCI_REVISION(pa->pa_class) == 0x21)
return (1);
for (t = dc_devs; t->dc_vid != 0; t++) {
if ((PCI_VENDOR(pa->pa_id) == t->dc_vid) &&
(PCI_PRODUCT(pa->pa_id) == t->dc_did)) {
return (3);
}
}
return (0);
}
/*
* Attach the interface. Allocate softc structures, do ifmedia
* setup and ethernet/BPF attach.
*/
void
dc_pci_attach(struct device *parent, struct device *self, void *aux)
{
const char *intrstr = NULL;
pcireg_t command;
struct dc_pci_softc *psc = (struct dc_pci_softc *)self;
struct dc_softc *sc = &psc->psc_softc;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
pci_intr_handle_t ih;
int found = 0;
psc->psc_pc = pa->pa_pc;
sc->sc_dmat = pa->pa_dmat;
pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0);
sc->dc_csid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
/*
* Map control/status registers.
*/
#ifdef DC_USEIOSPACE
if (pci_mapreg_map(pa, DC_PCI_CFBIO,
PCI_MAPREG_TYPE_IO, 0,
&sc->dc_btag, &sc->dc_bhandle, NULL, &psc->psc_mapsize, 0)) {
printf(": can't map i/o space\n");
return;
}
#else
if (pci_mapreg_map(pa, DC_PCI_CFBMA,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&sc->dc_btag, &sc->dc_bhandle, NULL, &psc->psc_mapsize, 0)) {
printf(": can't map mem space\n");
return;
}
#endif
/* Allocate interrupt */
if (pci_intr_map(pa, &ih)) {
printf(": couldn't map interrupt\n");
goto fail_1;
}
intrstr = pci_intr_string(pc, ih);
sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dc_intr, sc,
self->dv_xname);
if (sc->sc_ih == NULL) {
printf(": couldn't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
goto fail_1;
}
printf(": %s", intrstr);
/* Need this info to decide on a chip type. */
sc->dc_revision = PCI_REVISION(pa->pa_class);
/* Get the eeprom width, if possible */
if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LITEON &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC))
; /* PNIC has non-standard eeprom */
else if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_XIRCOM &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_XIRCOM_X3201_3_21143))
; /* XIRCOM has non-standard eeprom */
else
dc_eeprom_width(sc);
switch (PCI_VENDOR(pa->pa_id)) {
case PCI_VENDOR_DEC:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142) {
found = 1;
sc->dc_type = DC_TYPE_21143;
sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
sc->dc_flags |= DC_REDUCED_MII_POLL;
dc_read_srom(sc, sc->dc_romwidth);
}
break;
case PCI_VENDOR_INTEL:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_21145) {
found = 1;
sc->dc_type = DC_TYPE_21145;
sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
sc->dc_flags |= DC_REDUCED_MII_POLL;
dc_read_srom(sc, sc->dc_romwidth);
}
break;
case PCI_VENDOR_DAVICOM:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9100 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9102 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9009) {
found = 1;
sc->dc_type = DC_TYPE_DM9102;
sc->dc_flags |= DC_TX_COALESCE|DC_TX_INTR_ALWAYS;
sc->dc_flags |= DC_REDUCED_MII_POLL|DC_TX_STORENFWD;
sc->dc_flags |= DC_TX_ALIGN;
sc->dc_pmode = DC_PMODE_MII;
/* Increase the latency timer value. */
command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFLT);
command &= 0xFFFF00FF;
command |= 0x00008000;
pci_conf_write(pc, pa->pa_tag, DC_PCI_CFLT, command);
}
break;
case PCI_VENDOR_ADMTEK:
case PCI_VENDOR_3COM:
case PCI_VENDOR_MICROSOFT:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AL981) {
found = 1;
sc->dc_type = DC_TYPE_AL981;
sc->dc_flags |= DC_TX_USE_TX_INTR;
sc->dc_flags |= DC_TX_ADMTEK_WAR;
sc->dc_pmode = DC_PMODE_MII;
dc_read_srom(sc, sc->dc_romwidth);
}
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_ADM9511 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_ADM9513 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AN983 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3COM_3CSHO100BTX ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MICROSOFT_MN130) {
found = 1;
sc->dc_type = DC_TYPE_AN983;
sc->dc_flags |= DC_TX_USE_TX_INTR;
sc->dc_flags |= DC_TX_ADMTEK_WAR;
sc->dc_flags |= DC_64BIT_HASH;
sc->dc_pmode = DC_PMODE_MII;
/* Don't read SROM for - auto-loaded on reset */
}
break;
case PCI_VENDOR_MACRONIX:
case PCI_VENDOR_ACCTON:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN2242) {
found = 1;
sc->dc_type = DC_TYPE_AN983;
sc->dc_flags |= DC_TX_USE_TX_INTR;
sc->dc_flags |= DC_TX_ADMTEK_WAR;
sc->dc_flags |= DC_64BIT_HASH;
sc->dc_pmode = DC_PMODE_MII;
/* Don't read SROM for - auto-loaded on reset */
}
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98713) {
found = 1;
if (sc->dc_revision < DC_REVISION_98713A)
sc->dc_type = DC_TYPE_98713;
if (sc->dc_revision >= DC_REVISION_98713A) {
sc->dc_type = DC_TYPE_98713A;
sc->dc_flags |= DC_21143_NWAY;
}
sc->dc_flags |= DC_REDUCED_MII_POLL;
sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
}
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98715 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN1217) {
found = 1;
if (sc->dc_revision >= DC_REVISION_98715AEC_C &&
sc->dc_revision < DC_REVISION_98725)
sc->dc_flags |= DC_128BIT_HASH;
sc->dc_type = DC_TYPE_987x5;
sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
}
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98727) {
found = 1;
sc->dc_type = DC_TYPE_987x5;
sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
}
break;
case PCI_VENDOR_COMPEX:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPEX_98713) {
found = 1;
if (sc->dc_revision < DC_REVISION_98713A) {
sc->dc_type = DC_TYPE_98713;
sc->dc_flags |= DC_REDUCED_MII_POLL;
}
if (sc->dc_revision >= DC_REVISION_98713A)
sc->dc_type = DC_TYPE_98713A;
sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
}
break;
case PCI_VENDOR_LITEON:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNICII) {
found = 1;
sc->dc_type = DC_TYPE_PNICII;
sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
sc->dc_flags |= DC_128BIT_HASH;
}
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC) {
found = 1;
sc->dc_type = DC_TYPE_PNIC;
sc->dc_flags |= DC_TX_STORENFWD|DC_TX_INTR_ALWAYS;
sc->dc_flags |= DC_PNIC_RX_BUG_WAR;
sc->dc_pnic_rx_buf = malloc(ETHER_MAX_DIX_LEN * 5,
M_DEVBUF, M_NOWAIT);
if (sc->dc_pnic_rx_buf == NULL)
panic("dc_pci_attach");
if (sc->dc_revision < DC_REVISION_82C169)
sc->dc_pmode = DC_PMODE_SYM;
}
break;
case PCI_VENDOR_ASIX:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ASIX_AX88140A) {
found = 1;
sc->dc_type = DC_TYPE_ASIX;
sc->dc_flags |= DC_TX_USE_TX_INTR|DC_TX_INTR_FIRSTFRAG;
sc->dc_flags |= DC_REDUCED_MII_POLL;
sc->dc_pmode = DC_PMODE_MII;
}
break;
case PCI_VENDOR_CONEXANT:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CONEXANT_RS7112) {
found = 1;
sc->dc_type = DC_TYPE_CONEXANT;
sc->dc_flags |= DC_TX_INTR_ALWAYS;
sc->dc_flags |= DC_REDUCED_MII_POLL;
sc->dc_pmode = DC_PMODE_MII;
dc_read_srom(sc, sc->dc_romwidth);
}
break;
case PCI_VENDOR_XIRCOM:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_XIRCOM_X3201_3_21143) {
found = 1;
sc->dc_type = DC_TYPE_XIRCOM;
sc->dc_flags |= DC_TX_INTR_ALWAYS;
sc->dc_flags |= DC_TX_COALESCE;
sc->dc_flags |= DC_TX_ALIGN;
sc->dc_pmode = DC_PMODE_MII;
}
break;
}
if (found == 0) {
/* This shouldn't happen if probe has done its job... */
printf(": unknown device: %x:%x\n",
PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id));
goto fail_2;
}
/* Save the cache line size. */
if (DC_IS_DAVICOM(sc))
sc->dc_cachesize = 0;
else
sc->dc_cachesize = pci_conf_read(pc, pa->pa_tag,
DC_PCI_CFLT) & 0xFF;
/* Reset the adapter. */
dc_reset(sc);
/* Take 21143 out of snooze mode */
if (DC_IS_INTEL(sc) || DC_IS_XIRCOM(sc)) {
command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
pci_conf_write(pc, pa->pa_tag, DC_PCI_CFDD, command);
}
/*
* If we discover later (in dc_attach) that we have an
* MII with no PHY, we need to have the 21143 drive the LEDs.
* Except there are some systems like the NEC VersaPro NoteBook PC
* which have no LEDs, and twiddling these bits has adverse effects
* on them. (I.e. you suddenly can't get a link.)
*
* If mii_attach() returns an error, we leave the DC_TULIP_LEDS
* bit set, else we clear it. Since our dc(4) driver is split into
* bus-dependent and bus-independent parts, we must do set this bit
* here while we are able to do PCI configuration reads.
*/
if (DC_IS_INTEL(sc)) {
if (pci_conf_read(pc, pa->pa_tag, DC_PCI_CSID) != 0x80281033)
sc->dc_flags |= DC_TULIP_LEDS;
}
/*
* Try to learn something about the supported media.
* We know that ASIX and ADMtek and Davicom devices
* will *always* be using MII media, so that's a no-brainer.
* The tricky ones are the Macronix/PNIC II and the
* Intel 21143.
*/
if (DC_IS_INTEL(sc))
dc_parse_21143_srom(sc);
else if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) {
if (sc->dc_type == DC_TYPE_98713)
sc->dc_pmode = DC_PMODE_MII;
else
sc->dc_pmode = DC_PMODE_SYM;
} else if (!sc->dc_pmode)
sc->dc_pmode = DC_PMODE_MII;
#ifdef __sparc64__
{
extern void myetheraddr(u_char *);
if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address",
sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
myetheraddr(sc->sc_arpcom.ac_enaddr);
if (sc->sc_arpcom.ac_enaddr[0] == 0x00 &&
sc->sc_arpcom.ac_enaddr[1] == 0x03 &&
sc->sc_arpcom.ac_enaddr[2] == 0xcc)
sc->dc_flags |= DC_MOMENCO_BOTCH;
sc->sc_hasmac = 1;
}
#endif
#ifdef SRM_MEDIA
sc->dc_srm_media = 0;
/* Remember the SRM console media setting */
if (DC_IS_INTEL(sc)) {
command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
switch ((command >> 8) & 0xff) {
case 3:
sc->dc_srm_media = IFM_10_T;
break;
case 4:
sc->dc_srm_media = IFM_10_T | IFM_FDX;
break;
case 5:
sc->dc_srm_media = IFM_100_TX;
break;
case 6:
sc->dc_srm_media = IFM_100_TX | IFM_FDX;
break;
}
if (sc->dc_srm_media)
sc->dc_srm_media |= IFM_ACTIVE | IFM_ETHER;
}
#endif
dc_attach(sc);
return;
fail_2:
pci_intr_disestablish(pc, sc->sc_ih);
fail_1:
bus_space_unmap(sc->dc_btag, sc->dc_bhandle, psc->psc_mapsize);
}
int
dc_pci_detach(struct device *self, int flags)
{
struct dc_pci_softc *psc = (void *)self;
struct dc_softc *sc = &psc->psc_softc;
if (sc->sc_ih != NULL)
pci_intr_disestablish(psc->psc_pc, sc->sc_ih);
dc_detach(sc);
bus_space_unmap(sc->dc_btag, sc->dc_bhandle, psc->psc_mapsize);
return (0);
}
const struct cfattach dc_pci_ca = {
sizeof(struct dc_softc), dc_pci_match, dc_pci_attach, dc_pci_detach,
dc_activate
};
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