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e1b17582f4
if_watchdog/if_timer to NULL/0 when initializing an ifnet. if_alloc() sets those members to NULL/0 already.
1075 lines
26 KiB
C
1075 lines
26 KiB
C
/*-
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* Copyright (c) 2003
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* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Author: Hartmut Brandt <harti@freebsd.org>
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*
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* Driver for IDT77252 based cards like ProSum's.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_inet.h"
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#include "opt_natm.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/errno.h>
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#include <sys/conf.h>
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#include <sys/module.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sysctl.h>
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#include <sys/queue.h>
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#include <sys/condvar.h>
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#include <vm/uma.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_atm.h>
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#include <net/route.h>
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#ifdef ENABLE_BPF
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#include <net/bpf.h>
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#endif
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#include <netinet/in.h>
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#include <netinet/if_atm.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <sys/mbpool.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/utopia/utopia.h>
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#include <dev/patm/idt77252reg.h>
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#include <dev/patm/if_patmvar.h>
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MODULE_DEPEND(patm, utopia, 1, 1, 1);
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MODULE_DEPEND(patm, pci, 1, 1, 1);
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MODULE_DEPEND(patm, atm, 1, 1, 1);
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MODULE_DEPEND(patm, libmbpool, 1, 1, 1);
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devclass_t patm_devclass;
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static int patm_probe(device_t dev);
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static int patm_attach(device_t dev);
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static int patm_detach(device_t dev);
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static device_method_t patm_methods[] = {
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DEVMETHOD(device_probe, patm_probe),
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DEVMETHOD(device_attach, patm_attach),
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DEVMETHOD(device_detach, patm_detach),
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{0,0}
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};
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static driver_t patm_driver = {
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"patm",
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patm_methods,
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sizeof(struct patm_softc),
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};
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DRIVER_MODULE(patm, pci, patm_driver, patm_devclass, NULL, 0);
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static const struct {
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u_int devid;
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const char *desc;
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} devs[] = {
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{ PCI_DEVICE_IDT77252, "NICStAR (77222/77252) ATM adapter" },
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{ PCI_DEVICE_IDT77v252, "NICStAR (77v252) ATM adapter" },
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{ PCI_DEVICE_IDT77v222, "NICStAR (77v222) ATM adapter" },
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{ 0, NULL }
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};
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SYSCTL_DECL(_hw_atm);
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static int patm_phy_readregs(struct ifatm *, u_int, uint8_t *, u_int *);
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static int patm_phy_writereg(struct ifatm *, u_int, u_int, u_int);
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static const struct utopia_methods patm_utopia_methods = {
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patm_phy_readregs,
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patm_phy_writereg
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};
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static void patm_destroy(struct patm_softc *sc);
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static int patm_sysctl_istats(SYSCTL_HANDLER_ARGS);
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static int patm_sysctl_eeprom(SYSCTL_HANDLER_ARGS);
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static void patm_read_eeprom(struct patm_softc *sc);
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static int patm_sq_init(struct patm_softc *sc);
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static int patm_rbuf_init(struct patm_softc *sc);
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static int patm_txmap_init(struct patm_softc *sc);
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static void patm_env_getuint(struct patm_softc *, u_int *, const char *);
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#ifdef PATM_DEBUG
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static int patm_sysctl_regs(SYSCTL_HANDLER_ARGS);
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static int patm_sysctl_tsq(SYSCTL_HANDLER_ARGS);
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int patm_dump_vc(u_int unit, u_int vc) __unused;
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int patm_dump_regs(u_int unit) __unused;
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int patm_dump_sram(u_int unit, u_int from, u_int words) __unused;
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#endif
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/*
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* Probe for a IDT77252 controller
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*/
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static int
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patm_probe(device_t dev)
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{
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u_int i;
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if (pci_get_vendor(dev) == PCI_VENDOR_IDT) {
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for (i = 0; devs[i].desc != NULL; i++)
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if (pci_get_device(dev) == devs[i].devid) {
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device_set_desc(dev, devs[i].desc);
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return (BUS_PROBE_DEFAULT);
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}
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}
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return (ENXIO);
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}
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/*
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* Attach
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*/
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static int
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patm_attach(device_t dev)
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{
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struct patm_softc *sc;
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int error;
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struct ifnet *ifp;
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int rid;
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u_int a;
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static const struct idt_mmap idt_mmap[4] = IDT_MMAP;
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sc = device_get_softc(dev);
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sc->dev = dev;
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#ifdef IATM_DEBUG
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sc->debug = IATM_DEBUG;
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#endif
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ifp = sc->ifp = if_alloc(IFT_ATM);
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if (ifp == NULL) {
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return (ENOSPC);
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}
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IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_IDTABR25;
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IFP2IFATM(sc->ifp)->mib.serial = 0;
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IFP2IFATM(sc->ifp)->mib.hw_version = 0;
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IFP2IFATM(sc->ifp)->mib.sw_version = 0;
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IFP2IFATM(sc->ifp)->mib.vpi_bits = PATM_VPI_BITS;
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IFP2IFATM(sc->ifp)->mib.vci_bits = 0; /* set below */;
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IFP2IFATM(sc->ifp)->mib.max_vpcs = 0;
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IFP2IFATM(sc->ifp)->mib.max_vccs = 0; /* set below */
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IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_UNKNOWN;
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IFP2IFATM(sc->ifp)->phy = &sc->utopia;
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ifp->if_softc = sc;
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if_initname(ifp, device_get_name(dev), device_get_unit(dev));
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ifp->if_flags = IFF_SIMPLEX;
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ifp->if_init = patm_init;
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ifp->if_ioctl = patm_ioctl;
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ifp->if_start = patm_start;
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/* do this early so we can destroy unconditionally */
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mtx_init(&sc->mtx, device_get_nameunit(dev),
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MTX_NETWORK_LOCK, MTX_DEF);
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mtx_init(&sc->tst_lock, "tst lock", NULL, MTX_DEF);
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cv_init(&sc->vcc_cv, "vcc_close");
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callout_init(&sc->tst_callout, CALLOUT_MPSAFE);
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sysctl_ctx_init(&sc->sysctl_ctx);
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/*
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* Get revision
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*/
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sc->revision = pci_read_config(dev, PCIR_REVID, 4) & 0xf;
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/*
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* Enable PCI bus master and memory
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*/
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pci_enable_busmaster(dev);
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rid = IDT_PCI_REG_MEMBASE;
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sc->memres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
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RF_ACTIVE);
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if (sc->memres == NULL) {
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patm_printf(sc, "could not map memory\n");
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error = ENXIO;
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goto fail;
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}
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sc->memh = rman_get_bushandle(sc->memres);
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sc->memt = rman_get_bustag(sc->memres);
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/*
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* Allocate the interrupt (enable it later)
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*/
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sc->irqid = 0;
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sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid,
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RF_SHAREABLE | RF_ACTIVE);
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if (sc->irqres == 0) {
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patm_printf(sc, "could not allocate irq\n");
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error = ENXIO;
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goto fail;
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}
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/*
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* Construct the sysctl tree
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*/
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error = ENOMEM;
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if ((sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
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SYSCTL_STATIC_CHILDREN(_hw_atm), OID_AUTO,
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device_get_nameunit(dev), CTLFLAG_RD, 0, "")) == NULL)
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goto fail;
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if (SYSCTL_ADD_PROC(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
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OID_AUTO, "istats", CTLFLAG_RD, sc, 0, patm_sysctl_istats,
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"S", "internal statistics") == NULL)
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goto fail;
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if (SYSCTL_ADD_PROC(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
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OID_AUTO, "eeprom", CTLFLAG_RD, sc, 0, patm_sysctl_eeprom,
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"S", "EEPROM contents") == NULL)
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goto fail;
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if (SYSCTL_ADD_UINT(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
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OID_AUTO, "lbuf_max", CTLFLAG_RD, &sc->lbuf_max,
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0, "maximum number of large receive buffers") == NULL)
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goto fail;
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patm_env_getuint(sc, &sc->lbuf_max, "lbuf_max");
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if (SYSCTL_ADD_UINT(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
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OID_AUTO, "max_txmaps", CTLFLAG_RW, &sc->tx_maxmaps,
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0, "maximum number of TX DMA maps") == NULL)
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goto fail;
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patm_env_getuint(sc, &sc->tx_maxmaps, "tx_maxmaps");
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#ifdef PATM_DEBUG
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if (SYSCTL_ADD_UINT(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
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OID_AUTO, "debug", CTLFLAG_RW, &sc->debug,
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0, "debug flags") == NULL)
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goto fail;
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sc->debug = PATM_DEBUG;
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patm_env_getuint(sc, &sc->debug, "debug");
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if (SYSCTL_ADD_PROC(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
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OID_AUTO, "regs", CTLFLAG_RD, sc, 0, patm_sysctl_regs,
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"S", "registers") == NULL)
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goto fail;
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if (SYSCTL_ADD_PROC(&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
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OID_AUTO, "tsq", CTLFLAG_RD, sc, 0, patm_sysctl_tsq,
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"S", "TSQ") == NULL)
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goto fail;
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#endif
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patm_reset(sc);
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/*
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* Detect and attach the phy.
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*/
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patm_debug(sc, ATTACH, "attaching utopia");
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IFP2IFATM(sc->ifp)->phy = &sc->utopia;
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utopia_attach(&sc->utopia, IFP2IFATM(sc->ifp), &sc->media, &sc->mtx,
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&sc->sysctl_ctx, SYSCTL_CHILDREN(sc->sysctl_tree),
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&patm_utopia_methods);
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/*
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* Start the PHY because we need the autodetection
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*/
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patm_debug(sc, ATTACH, "starting utopia");
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mtx_lock(&sc->mtx);
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utopia_start(&sc->utopia);
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utopia_reset(&sc->utopia);
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mtx_unlock(&sc->mtx);
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/* Read EEPROM */
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patm_read_eeprom(sc);
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/* analyze it */
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if (strncmp(sc->eeprom + PATM_PROATM_NAME_OFFSET, PATM_PROATM_NAME,
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strlen(PATM_PROATM_NAME)) == 0) {
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if (sc->utopia.chip->type == UTP_TYPE_IDT77105) {
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IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_PROATM25;
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IFP2IFATM(sc->ifp)->mib.pcr = ATM_RATE_25_6M;
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IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_UTP_25;
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sc->flags |= PATM_25M;
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patm_printf(sc, "ProATM 25 interface; ");
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} else {
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/* cannot really know which media */
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IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_PROATM155;
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IFP2IFATM(sc->ifp)->mib.pcr = ATM_RATE_155M;
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IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_MM_155;
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patm_printf(sc, "ProATM 155 interface; ");
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}
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bcopy(sc->eeprom + PATM_PROATM_MAC_OFFSET, IFP2IFATM(sc->ifp)->mib.esi,
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sizeof(IFP2IFATM(sc->ifp)->mib.esi));
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} else {
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if (sc->utopia.chip->type == UTP_TYPE_IDT77105) {
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IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_IDTABR25;
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IFP2IFATM(sc->ifp)->mib.pcr = ATM_RATE_25_6M;
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IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_UTP_25;
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sc->flags |= PATM_25M;
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patm_printf(sc, "IDT77252 25MBit interface; ");
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} else {
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/* cannot really know which media */
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IFP2IFATM(sc->ifp)->mib.device = ATM_DEVICE_IDTABR155;
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IFP2IFATM(sc->ifp)->mib.pcr = ATM_RATE_155M;
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IFP2IFATM(sc->ifp)->mib.media = IFM_ATM_MM_155;
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patm_printf(sc, "IDT77252 155MBit interface; ");
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}
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bcopy(sc->eeprom + PATM_IDT_MAC_OFFSET, IFP2IFATM(sc->ifp)->mib.esi,
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sizeof(IFP2IFATM(sc->ifp)->mib.esi));
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}
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printf("idt77252 Rev. %c; %s PHY\n", 'A' + sc->revision,
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sc->utopia.chip->name);
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|
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utopia_reset_media(&sc->utopia);
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utopia_init_media(&sc->utopia);
|
|
|
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/*
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* Determine RAM size
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*/
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for (a = 0; a < 0x20000; a++)
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patm_sram_write(sc, a, 0);
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patm_sram_write(sc, 0, 0xdeadbeef);
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if (patm_sram_read(sc, 0x4004) == 0xdeadbeef)
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sc->mmap = &idt_mmap[0];
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else if (patm_sram_read(sc, 0x8000) == 0xdeadbeef)
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sc->mmap = &idt_mmap[1];
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else if (patm_sram_read(sc, 0x20000) == 0xdeadbeef)
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sc->mmap = &idt_mmap[2];
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else
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sc->mmap = &idt_mmap[3];
|
|
|
|
IFP2IFATM(sc->ifp)->mib.vci_bits = sc->mmap->vcbits - IFP2IFATM(sc->ifp)->mib.vpi_bits;
|
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IFP2IFATM(sc->ifp)->mib.max_vccs = sc->mmap->max_conn;
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patm_sram_write(sc, 0, 0);
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patm_printf(sc, "%uK x 32 SRAM; %u connections\n", sc->mmap->sram,
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sc->mmap->max_conn);
|
|
|
|
/* initialize status queues */
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error = patm_sq_init(sc);
|
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if (error != 0)
|
|
goto fail;
|
|
|
|
/* get TST */
|
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sc->tst_soft = malloc(sizeof(uint32_t) * sc->mmap->tst_size,
|
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M_DEVBUF, M_WAITOK);
|
|
|
|
/* allocate all the receive buffer stuff */
|
|
error = patm_rbuf_init(sc);
|
|
if (error != 0)
|
|
goto fail;
|
|
|
|
/*
|
|
* Allocate SCD tag
|
|
*
|
|
* Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
|
|
* bus_dmamem_alloc()
|
|
*/
|
|
error = bus_dma_tag_create(NULL, PAGE_SIZE, 0,
|
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BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
|
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NULL, NULL, sizeof(struct patm_scd), 1,
|
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sizeof(struct patm_scd), 0, NULL, NULL, &sc->scd_tag);
|
|
if (error) {
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patm_printf(sc, "SCD DMA tag create %d\n", error);
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goto fail;
|
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}
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|
LIST_INIT(&sc->scd_list);
|
|
|
|
/* allocate VCC zone and pointers */
|
|
if ((sc->vcc_zone = uma_zcreate("PATM vccs", sizeof(struct patm_vcc),
|
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NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0)) == NULL) {
|
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patm_printf(sc, "cannot allocate zone for vccs\n");
|
|
goto fail;
|
|
}
|
|
sc->vccs = malloc(sizeof(sc->vccs[0]) * sc->mmap->max_conn,
|
|
M_DEVBUF, M_WAITOK | M_ZERO);
|
|
|
|
/* allocate transmission resources */
|
|
error = patm_txmap_init(sc);
|
|
if (error != 0)
|
|
goto fail;
|
|
|
|
/* poll while we are not running */
|
|
sc->utopia.flags |= UTP_FL_POLL_CARRIER;
|
|
|
|
patm_debug(sc, ATTACH, "attaching interface");
|
|
atm_ifattach(ifp);
|
|
|
|
#ifdef ENABLE_BPF
|
|
bpfattach(ifp, DLT_ATM_RFC1483, sizeof(struct atmllc));
|
|
#endif
|
|
|
|
patm_debug(sc, ATTACH, "attaching interrupt handler");
|
|
error = bus_setup_intr(dev, sc->irqres, INTR_TYPE_NET | INTR_MPSAFE,
|
|
NULL, patm_intr, sc, &sc->ih);
|
|
if (error != 0) {
|
|
patm_printf(sc, "could not setup interrupt\n");
|
|
atm_ifdetach(sc->ifp);
|
|
if_free(sc->ifp);
|
|
goto fail;
|
|
}
|
|
|
|
return (0);
|
|
|
|
fail:
|
|
patm_destroy(sc);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Detach
|
|
*/
|
|
static int
|
|
patm_detach(device_t dev)
|
|
{
|
|
struct patm_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
mtx_lock(&sc->mtx);
|
|
patm_stop(sc);
|
|
if (sc->utopia.state & UTP_ST_ATTACHED) {
|
|
patm_debug(sc, ATTACH, "detaching utopia");
|
|
utopia_stop(&sc->utopia);
|
|
utopia_detach(&sc->utopia);
|
|
}
|
|
mtx_unlock(&sc->mtx);
|
|
|
|
atm_ifdetach(sc->ifp);
|
|
|
|
patm_destroy(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Destroy everything. Assume we are stopped.
|
|
*/
|
|
static void
|
|
patm_destroy(struct patm_softc *sc)
|
|
{
|
|
u_int i;
|
|
struct patm_txmap *map;
|
|
|
|
if (sc->ih != NULL)
|
|
bus_teardown_intr(sc->dev, sc->irqres, sc->ih);
|
|
|
|
if (sc->tx_mapzone != NULL) {
|
|
/* all maps must be free */
|
|
while ((map = SLIST_FIRST(&sc->tx_maps_free)) != NULL) {
|
|
bus_dmamap_destroy(sc->tx_tag, map->map);
|
|
SLIST_REMOVE_HEAD(&sc->tx_maps_free, link);
|
|
uma_zfree(sc->tx_mapzone, map);
|
|
}
|
|
uma_zdestroy(sc->tx_mapzone);
|
|
}
|
|
|
|
if (sc->scd_tag != NULL)
|
|
bus_dma_tag_destroy(sc->scd_tag);
|
|
|
|
if (sc->tx_tag != NULL)
|
|
bus_dma_tag_destroy(sc->scd_tag);
|
|
|
|
if (sc->vccs != NULL) {
|
|
for (i = 0; i < sc->mmap->max_conn; i++)
|
|
if (sc->vccs[i] != NULL)
|
|
uma_zfree(sc->vcc_zone, sc->vccs[i]);
|
|
free(sc->vccs, M_DEVBUF);
|
|
}
|
|
if (sc->vcc_zone != NULL)
|
|
uma_zdestroy(sc->vcc_zone);
|
|
|
|
if (sc->lbufs != NULL) {
|
|
for (i = 0; i < sc->lbuf_max; i++)
|
|
bus_dmamap_destroy(sc->lbuf_tag, sc->lbufs[i].map);
|
|
free(sc->lbufs, M_DEVBUF);
|
|
}
|
|
|
|
if (sc->lbuf_tag != NULL)
|
|
bus_dma_tag_destroy(sc->lbuf_tag);
|
|
|
|
if (sc->sbuf_pool != NULL)
|
|
mbp_destroy(sc->sbuf_pool);
|
|
if (sc->vbuf_pool != NULL)
|
|
mbp_destroy(sc->vbuf_pool);
|
|
|
|
if (sc->sbuf_tag != NULL)
|
|
bus_dma_tag_destroy(sc->sbuf_tag);
|
|
|
|
if (sc->tst_soft != NULL)
|
|
free(sc->tst_soft, M_DEVBUF);
|
|
|
|
/*
|
|
* Free all status queue memory resources
|
|
*/
|
|
if (sc->tsq != NULL) {
|
|
bus_dmamap_unload(sc->sq_tag, sc->sq_map);
|
|
bus_dmamem_free(sc->sq_tag, sc->tsq, sc->sq_map);
|
|
bus_dma_tag_destroy(sc->sq_tag);
|
|
}
|
|
|
|
if (sc->irqres != NULL)
|
|
bus_release_resource(sc->dev, SYS_RES_IRQ,
|
|
sc->irqid, sc->irqres);
|
|
if (sc->memres != NULL)
|
|
bus_release_resource(sc->dev, SYS_RES_MEMORY,
|
|
IDT_PCI_REG_MEMBASE, sc->memres);
|
|
|
|
/* this was initialize unconditionally */
|
|
sysctl_ctx_free(&sc->sysctl_ctx);
|
|
cv_destroy(&sc->vcc_cv);
|
|
mtx_destroy(&sc->tst_lock);
|
|
mtx_destroy(&sc->mtx);
|
|
|
|
if (sc->ifp != NULL)
|
|
if_free(sc->ifp);
|
|
}
|
|
|
|
/*
|
|
* Try to find a variable in the environment and parse it as an unsigned
|
|
* integer.
|
|
*/
|
|
static void
|
|
patm_env_getuint(struct patm_softc *sc, u_int *var, const char *name)
|
|
{
|
|
char full[IFNAMSIZ + 3 + 20];
|
|
char *val, *end;
|
|
u_long u;
|
|
|
|
snprintf(full, sizeof(full), "hw.%s.%s",
|
|
device_get_nameunit(sc->dev), name);
|
|
|
|
if ((val = getenv(full)) != NULL) {
|
|
u = strtoul(val, &end, 0);
|
|
if (end > val && *end == '\0') {
|
|
if (bootverbose)
|
|
patm_printf(sc, "%s=%lu\n", full, u);
|
|
*var = u;
|
|
}
|
|
freeenv(val);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Sysctl handler for internal statistics
|
|
*
|
|
* LOCK: unlocked, needed
|
|
*/
|
|
static int
|
|
patm_sysctl_istats(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct patm_softc *sc = arg1;
|
|
uint32_t *ret;
|
|
int error;
|
|
|
|
ret = malloc(sizeof(sc->stats), M_TEMP, M_WAITOK);
|
|
|
|
mtx_lock(&sc->mtx);
|
|
bcopy(&sc->stats, ret, sizeof(sc->stats));
|
|
mtx_unlock(&sc->mtx);
|
|
|
|
error = SYSCTL_OUT(req, ret, sizeof(sc->stats));
|
|
free(ret, M_TEMP);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Sysctl handler for EEPROM
|
|
*
|
|
* LOCK: unlocked, needed
|
|
*/
|
|
static int
|
|
patm_sysctl_eeprom(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct patm_softc *sc = arg1;
|
|
void *ret;
|
|
int error;
|
|
|
|
ret = malloc(sizeof(sc->eeprom), M_TEMP, M_WAITOK);
|
|
|
|
mtx_lock(&sc->mtx);
|
|
bcopy(sc->eeprom, ret, sizeof(sc->eeprom));
|
|
mtx_unlock(&sc->mtx);
|
|
|
|
error = SYSCTL_OUT(req, ret, sizeof(sc->eeprom));
|
|
free(ret, M_TEMP);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Read the EEPROM. We assume that this is a XIRCOM 25020
|
|
*/
|
|
static void
|
|
patm_read_eeprom(struct patm_softc *sc)
|
|
{
|
|
u_int gp;
|
|
uint8_t byte;
|
|
int i, addr;
|
|
|
|
static const uint32_t tab[] = {
|
|
/* CS transition to reset the chip */
|
|
IDT_GP_EECS | IDT_GP_EESCLK, 0,
|
|
/* read command 0x03 */
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, IDT_GP_EEDO,
|
|
IDT_GP_EESCLK | IDT_GP_EEDO, IDT_GP_EEDO,
|
|
IDT_GP_EESCLK | IDT_GP_EEDO, 0,
|
|
/* address 0x00 */
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
IDT_GP_EESCLK, 0,
|
|
};
|
|
|
|
/* go to a known state (chip enabled) */
|
|
gp = patm_nor_read(sc, IDT_NOR_GP);
|
|
gp &= ~(IDT_GP_EESCLK | IDT_GP_EECS | IDT_GP_EEDO);
|
|
|
|
for (i = 0; i < sizeof(tab) / sizeof(tab[0]); i++) {
|
|
patm_nor_write(sc, IDT_NOR_GP, gp | tab[i]);
|
|
DELAY(40);
|
|
}
|
|
|
|
/* read out the prom */
|
|
for (addr = 0; addr < 256; addr++) {
|
|
byte = 0;
|
|
for (i = 0; i < 8; i++) {
|
|
byte <<= 1;
|
|
if (patm_nor_read(sc, IDT_NOR_GP) & IDT_GP_EEDI)
|
|
byte |= 1;
|
|
/* rising CLK */
|
|
patm_nor_write(sc, IDT_NOR_GP, gp | IDT_GP_EESCLK);
|
|
DELAY(40);
|
|
/* falling clock */
|
|
patm_nor_write(sc, IDT_NOR_GP, gp);
|
|
DELAY(40);
|
|
}
|
|
sc->eeprom[addr] = byte;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* PHY access read
|
|
*/
|
|
static int
|
|
patm_phy_readregs(struct ifatm *ifatm, u_int reg, uint8_t *val, u_int *n)
|
|
{
|
|
struct patm_softc *sc = ifatm->ifp->if_softc;
|
|
u_int cnt = *n;
|
|
|
|
if (reg >= 0x100)
|
|
return (EINVAL);
|
|
|
|
patm_cmd_wait(sc);
|
|
while (reg < 0x100 && cnt > 0) {
|
|
patm_nor_write(sc, IDT_NOR_CMD, IDT_MKCMD_RUTIL(1, 0, reg));
|
|
patm_cmd_wait(sc);
|
|
*val = patm_nor_read(sc, IDT_NOR_D0);
|
|
patm_debug(sc, PHY, "phy(%02x)=%02x", reg, *val);
|
|
val++;
|
|
reg++;
|
|
cnt--;
|
|
}
|
|
*n = *n - cnt;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Write PHY reg
|
|
*/
|
|
static int
|
|
patm_phy_writereg(struct ifatm *ifatm, u_int reg, u_int mask, u_int val)
|
|
{
|
|
struct patm_softc *sc = ifatm->ifp->if_softc;
|
|
u_int old, new;
|
|
|
|
if (reg >= 0x100)
|
|
return (EINVAL);
|
|
|
|
patm_cmd_wait(sc);
|
|
patm_nor_write(sc, IDT_NOR_CMD, IDT_MKCMD_RUTIL(1, 0, reg));
|
|
patm_cmd_wait(sc);
|
|
|
|
old = patm_nor_read(sc, IDT_NOR_D0);
|
|
new = (old & ~mask) | (val & mask);
|
|
patm_debug(sc, PHY, "phy(%02x) %02x -> %02x", reg, old, new);
|
|
|
|
patm_nor_write(sc, IDT_NOR_D0, new);
|
|
patm_nor_write(sc, IDT_NOR_CMD, IDT_MKCMD_WUTIL(1, 0, reg));
|
|
patm_cmd_wait(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Allocate a large chunk of DMA able memory for the transmit
|
|
* and receive status queues. We align this to a page boundary
|
|
* to ensure the alignment.
|
|
*/
|
|
static int
|
|
patm_sq_init(struct patm_softc *sc)
|
|
{
|
|
int error;
|
|
void *p;
|
|
|
|
/* compute size of the two queues */
|
|
sc->sq_size = IDT_TSQ_SIZE * IDT_TSQE_SIZE +
|
|
PATM_RSQ_SIZE * IDT_RSQE_SIZE +
|
|
IDT_RAWHND_SIZE;
|
|
|
|
patm_debug(sc, ATTACH,
|
|
"allocating status queues (%zu) ...", sc->sq_size);
|
|
|
|
/*
|
|
* allocate tag
|
|
* Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
|
|
* bus_dmamem_alloc()
|
|
*/
|
|
error = bus_dma_tag_create(NULL, PATM_SQ_ALIGNMENT, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
|
|
NULL, NULL, sc->sq_size, 1, sc->sq_size,
|
|
0, NULL, NULL, &sc->sq_tag);
|
|
if (error) {
|
|
patm_printf(sc, "memory DMA tag create %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
/* allocate memory */
|
|
error = bus_dmamem_alloc(sc->sq_tag, &p, 0, &sc->sq_map);
|
|
if (error) {
|
|
patm_printf(sc, "memory DMA alloc %d\n", error);
|
|
bus_dma_tag_destroy(sc->sq_tag);
|
|
return (error);
|
|
}
|
|
|
|
/* map it */
|
|
sc->tsq_phy = 0x1fff;
|
|
error = bus_dmamap_load(sc->sq_tag, sc->sq_map, p,
|
|
sc->sq_size, patm_load_callback, &sc->tsq_phy, BUS_DMA_NOWAIT);
|
|
if (error) {
|
|
patm_printf(sc, "memory DMA map load %d\n", error);
|
|
bus_dmamem_free(sc->sq_tag, p, sc->sq_map);
|
|
bus_dma_tag_destroy(sc->sq_tag);
|
|
return (error);
|
|
}
|
|
|
|
/* set queue start */
|
|
sc->tsq = p;
|
|
sc->rsq = (void *)((char *)p + IDT_TSQ_SIZE * IDT_TSQE_SIZE);
|
|
sc->rsq_phy = sc->tsq_phy + IDT_TSQ_SIZE * IDT_TSQE_SIZE;
|
|
sc->rawhnd = (void *)((char *)sc->rsq + PATM_RSQ_SIZE * IDT_RSQE_SIZE);
|
|
sc->rawhnd_phy = sc->rsq_phy + PATM_RSQ_SIZE * IDT_RSQE_SIZE;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Initialize all receive buffer stuff
|
|
*/
|
|
static int
|
|
patm_rbuf_init(struct patm_softc *sc)
|
|
{
|
|
u_int i;
|
|
int error;
|
|
|
|
patm_debug(sc, ATTACH, "allocating Rx buffer resources ...");
|
|
/*
|
|
* Create a tag for small buffers. We allocate these page wise.
|
|
* Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
|
|
* bus_dmamem_alloc()
|
|
*/
|
|
if ((error = bus_dma_tag_create(NULL, PAGE_SIZE, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
SMBUF_PAGE_SIZE, 1, SMBUF_PAGE_SIZE, 0,
|
|
NULL, NULL, &sc->sbuf_tag)) != 0) {
|
|
patm_printf(sc, "sbuf DMA tag create %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
error = mbp_create(&sc->sbuf_pool, "patm sbufs", sc->sbuf_tag,
|
|
SMBUF_MAX_PAGES, SMBUF_PAGE_SIZE, SMBUF_CHUNK_SIZE);
|
|
if (error != 0) {
|
|
patm_printf(sc, "smbuf pool create %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
error = mbp_create(&sc->vbuf_pool, "patm vbufs", sc->sbuf_tag,
|
|
VMBUF_MAX_PAGES, SMBUF_PAGE_SIZE, VMBUF_CHUNK_SIZE);
|
|
if (error != 0) {
|
|
patm_printf(sc, "vmbuf pool create %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Create a tag for large buffers.
|
|
* Don't use BUS_DMA_ALLOCNOW, because it makes no sense with multiple
|
|
* maps using one tag. Rather use BUS_DMA_NOWAIT when loading the map
|
|
* to prevent EINPROGRESS.
|
|
*/
|
|
if ((error = bus_dma_tag_create(NULL, 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
MCLBYTES, 1, MCLBYTES, 0,
|
|
NULL, NULL, &sc->lbuf_tag)) != 0) {
|
|
patm_printf(sc, "lbuf DMA tag create %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
if (sc->lbuf_max < IDT_FBQ_SIZE)
|
|
sc->lbuf_max = LMBUF_MAX;
|
|
sc->lbufs = malloc(sizeof(sc->lbufs[0]) * sc->lbuf_max,
|
|
M_DEVBUF, M_ZERO | M_WAITOK);
|
|
|
|
SLIST_INIT(&sc->lbuf_free_list);
|
|
for (i = 0; i < sc->lbuf_max; i++) {
|
|
struct lmbuf *b = &sc->lbufs[i];
|
|
|
|
error = bus_dmamap_create(sc->lbuf_tag, 0, &b->map);
|
|
if (error) {
|
|
/* must deallocate here, because a test for NULL
|
|
* does not work on most archs */
|
|
while (i-- > 0)
|
|
bus_dmamap_destroy(sc->lbuf_tag,
|
|
sc->lbufs[i].map);
|
|
free(sc->lbufs, M_DEVBUF);
|
|
sc->lbufs = NULL;
|
|
return (error);
|
|
}
|
|
b->handle = i;
|
|
SLIST_INSERT_HEAD(&sc->lbuf_free_list, b, link);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Allocate everything needed for the transmission maps.
|
|
*/
|
|
static int
|
|
patm_txmap_init(struct patm_softc *sc)
|
|
{
|
|
int error;
|
|
struct patm_txmap *map;
|
|
|
|
/* get transmission tag */
|
|
error = bus_dma_tag_create(NULL, 1, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
|
|
NULL, NULL, 65536, IDT_SCQ_SIZE - 1, 65536,
|
|
0, NULL, NULL, &sc->tx_tag);
|
|
if (error) {
|
|
patm_printf(sc, "cannot allocate TX tag %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
if ((sc->tx_mapzone = uma_zcreate("PATM tx maps",
|
|
sizeof(struct patm_txmap), NULL, NULL, NULL, NULL,
|
|
UMA_ALIGN_PTR, 0)) == NULL)
|
|
return (ENOMEM);
|
|
|
|
if (sc->tx_maxmaps < PATM_CFG_TXMAPS_MAX)
|
|
sc->tx_maxmaps = PATM_CFG_TXMAPS_MAX;
|
|
sc->tx_nmaps = PATM_CFG_TXMAPS_INIT;
|
|
|
|
for (sc->tx_nmaps = 0; sc->tx_nmaps < PATM_CFG_TXMAPS_INIT;
|
|
sc->tx_nmaps++) {
|
|
map = uma_zalloc(sc->tx_mapzone, M_WAITOK);
|
|
error = bus_dmamap_create(sc->tx_tag, 0, &map->map);
|
|
if (error) {
|
|
uma_zfree(sc->tx_mapzone, map);
|
|
return (ENOMEM);
|
|
}
|
|
SLIST_INSERT_HEAD(&sc->tx_maps_free, map, link);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef PATM_DEBUG
|
|
|
|
/*
|
|
* Sysctl handler for REGS
|
|
*
|
|
* LOCK: unlocked, needed
|
|
*/
|
|
static int
|
|
patm_sysctl_regs(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct patm_softc *sc = arg1;
|
|
uint32_t *ret;
|
|
int error, i;
|
|
|
|
ret = malloc(IDT_NOR_END, M_TEMP, M_WAITOK);
|
|
|
|
mtx_lock(&sc->mtx);
|
|
for (i = 0; i < IDT_NOR_END; i += 4)
|
|
ret[i / 4] = patm_nor_read(sc, i);
|
|
mtx_unlock(&sc->mtx);
|
|
|
|
error = SYSCTL_OUT(req, ret, IDT_NOR_END);
|
|
free(ret, M_TEMP);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Sysctl handler for TSQ
|
|
*
|
|
* LOCK: unlocked, needed
|
|
*/
|
|
static int
|
|
patm_sysctl_tsq(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct patm_softc *sc = arg1;
|
|
void *ret;
|
|
int error;
|
|
|
|
ret = malloc(IDT_TSQ_SIZE * IDT_TSQE_SIZE, M_TEMP, M_WAITOK);
|
|
|
|
mtx_lock(&sc->mtx);
|
|
memcpy(ret, sc->tsq, IDT_TSQ_SIZE * IDT_TSQE_SIZE);
|
|
mtx_unlock(&sc->mtx);
|
|
|
|
error = SYSCTL_OUT(req, ret, IDT_TSQ_SIZE * IDT_TSQE_SIZE);
|
|
free(ret, M_TEMP);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* debugging
|
|
*/
|
|
static struct patm_softc *
|
|
patm_dump_unit(u_int unit)
|
|
{
|
|
devclass_t dc;
|
|
struct patm_softc *sc;
|
|
|
|
dc = devclass_find("patm");
|
|
if (dc == NULL) {
|
|
printf("%s: can't find devclass\n", __func__);
|
|
return (NULL);
|
|
}
|
|
sc = devclass_get_softc(dc, unit);
|
|
if (sc == NULL) {
|
|
printf("%s: invalid unit number: %d\n", __func__, unit);
|
|
return (NULL);
|
|
}
|
|
return (sc);
|
|
}
|
|
|
|
int
|
|
patm_dump_vc(u_int unit, u_int vc)
|
|
{
|
|
struct patm_softc *sc;
|
|
uint32_t tct[8];
|
|
uint32_t rct[4];
|
|
uint32_t scd[12];
|
|
u_int i;
|
|
|
|
if ((sc = patm_dump_unit(unit)) == NULL)
|
|
return (0);
|
|
|
|
for (i = 0; i < 8; i++)
|
|
tct[i] = patm_sram_read(sc, vc * 8 + i);
|
|
for (i = 0; i < 4; i++)
|
|
rct[i] = patm_sram_read(sc, sc->mmap->rct + vc * 4 + i);
|
|
for (i = 0; i < 12; i++)
|
|
scd[i] = patm_sram_read(sc, (tct[0] & 0x7ffff) + i);
|
|
|
|
printf("TCT%3u: %08x %08x %08x %08x %08x %08x %08x %08x\n", vc,
|
|
tct[0], tct[1], tct[2], tct[3], tct[4], tct[5], tct[6], tct[7]);
|
|
printf("RCT%3u: %08x %08x %08x %08x\n", vc,
|
|
rct[0], rct[1], rct[2], rct[3]);
|
|
printf("SCD%3u: %08x %08x %08x %08x %08x %08x %08x %08x\n", vc,
|
|
scd[0], scd[1], scd[2], scd[3], scd[4], scd[5], scd[6], scd[7]);
|
|
printf(" %08x %08x %08x %08x\n",
|
|
scd[8], scd[9], scd[10], scd[11]);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
patm_dump_regs(u_int unit)
|
|
{
|
|
struct patm_softc *sc;
|
|
u_int i;
|
|
|
|
if ((sc = patm_dump_unit(unit)) == NULL)
|
|
return (0);
|
|
|
|
for (i = 0; i <= IDT_NOR_DNOW; i += 4)
|
|
printf("%x: %08x\n", i, patm_nor_read(sc, i));
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
patm_dump_sram(u_int unit, u_int from, u_int words)
|
|
{
|
|
struct patm_softc *sc;
|
|
u_int i;
|
|
|
|
if ((sc = patm_dump_unit(unit)) == NULL)
|
|
return (0);
|
|
|
|
for (i = 0; i < words; i++) {
|
|
if (i % 8 == 0)
|
|
printf("%05x:", from + i);
|
|
printf(" %08x", patm_sram_read(sc, from + i));
|
|
if (i % 8 == 7)
|
|
printf("\n");
|
|
}
|
|
if (i % 8 != 0)
|
|
printf("\n");
|
|
return (0);
|
|
}
|
|
#endif
|