f0be707d74
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612 lines
15 KiB
C
612 lines
15 KiB
C
/*-
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* Copyright (c) 2013 Luiz Otavio O Souza.
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* Copyright (c) 2011-2012 Stefan Bethke.
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* Copyright (c) 2012 Adrian Chadd.
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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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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/errno.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <net/if.h>
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#include <net/ethernet.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_var.h>
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#include <machine/bus.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/mdio/mdio.h>
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#include <dev/etherswitch/etherswitch.h>
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#include <dev/etherswitch/ip17x/ip17x_phy.h>
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#include <dev/etherswitch/ip17x/ip17x_reg.h>
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#include <dev/etherswitch/ip17x/ip17x_var.h>
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#include <dev/etherswitch/ip17x/ip17x_vlans.h>
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#include <dev/etherswitch/ip17x/ip175c.h>
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#include <dev/etherswitch/ip17x/ip175d.h>
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#include "mdio_if.h"
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#include "miibus_if.h"
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#include "etherswitch_if.h"
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MALLOC_DECLARE(M_IP17X);
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MALLOC_DEFINE(M_IP17X, "ip17x", "ip17x data structures");
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static void ip17x_tick(void *);
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static int ip17x_ifmedia_upd(struct ifnet *);
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static void ip17x_ifmedia_sts(struct ifnet *, struct ifmediareq *);
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static int
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ip17x_probe(device_t dev)
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{
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struct ip17x_softc *sc;
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uint32_t oui, model, phy_id1, phy_id2;
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sc = device_get_softc(dev);
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/* Read ID from PHY 0. */
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phy_id1 = MDIO_READREG(device_get_parent(dev), 0, MII_PHYIDR1);
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phy_id2 = MDIO_READREG(device_get_parent(dev), 0, MII_PHYIDR2);
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oui = MII_OUI(phy_id1, phy_id2);
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model = MII_MODEL(phy_id2);
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/* We only care about IC+ devices. */
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if (oui != IP17X_OUI) {
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device_printf(dev,
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"Unsupported IC+ switch. Unknown OUI: %#x\n", oui);
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return (ENXIO);
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}
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switch (model) {
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case IP17X_IP175A:
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sc->sc_switchtype = IP17X_SWITCH_IP175A;
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break;
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case IP17X_IP175C:
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sc->sc_switchtype = IP17X_SWITCH_IP175C;
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break;
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default:
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device_printf(dev, "Unsupported IC+ switch model: %#x\n",
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model);
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return (ENXIO);
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}
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/* IP175D has a specific ID register. */
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model = MDIO_READREG(device_get_parent(dev), IP175D_ID_PHY,
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IP175D_ID_REG);
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if (model == 0x175d)
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sc->sc_switchtype = IP17X_SWITCH_IP175D;
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else {
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/* IP178 has more PHYs. Try it. */
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model = MDIO_READREG(device_get_parent(dev), 5, MII_PHYIDR1);
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if (phy_id1 == model)
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sc->sc_switchtype = IP17X_SWITCH_IP178C;
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}
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device_set_desc_copy(dev, "IC+ IP17x switch driver");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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ip17x_attach_phys(struct ip17x_softc *sc)
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{
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int err, phy, port;
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char name[IFNAMSIZ];
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port = err = 0;
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/* PHYs need an interface, so we generate a dummy one */
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snprintf(name, IFNAMSIZ, "%sport", device_get_nameunit(sc->sc_dev));
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for (phy = 0; phy < MII_NPHY; phy++) {
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if (((1 << phy) & sc->phymask) == 0)
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continue;
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sc->phyport[phy] = port;
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sc->portphy[port] = phy;
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sc->ifp[port] = if_alloc(IFT_ETHER);
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sc->ifp[port]->if_softc = sc;
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sc->ifp[port]->if_flags |= IFF_UP | IFF_BROADCAST |
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IFF_DRV_RUNNING | IFF_SIMPLEX;
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if_initname(sc->ifp[port], name, port);
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sc->miibus[port] = malloc(sizeof(device_t), M_IP17X,
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M_WAITOK | M_ZERO);
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err = mii_attach(sc->sc_dev, sc->miibus[port], sc->ifp[port],
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ip17x_ifmedia_upd, ip17x_ifmedia_sts, \
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BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, 0);
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DPRINTF(sc->sc_dev, "%s attached to pseudo interface %s\n",
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device_get_nameunit(*sc->miibus[port]),
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sc->ifp[port]->if_xname);
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if (err != 0) {
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device_printf(sc->sc_dev,
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"attaching PHY %d failed\n",
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phy);
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break;
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}
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sc->info.es_nports = port + 1;
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if (++port >= sc->numports)
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break;
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}
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return (err);
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}
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static int
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ip17x_attach(device_t dev)
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{
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struct ip17x_softc *sc;
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int err;
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sc = device_get_softc(dev);
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sc->sc_dev = dev;
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mtx_init(&sc->sc_mtx, "ip17x", NULL, MTX_DEF);
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strlcpy(sc->info.es_name, device_get_desc(dev),
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sizeof(sc->info.es_name));
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/* XXX Defaults */
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sc->phymask = 0x0f;
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sc->media = 100;
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(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
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"phymask", &sc->phymask);
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/* Number of vlans supported by the switch. */
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sc->info.es_nvlangroups = IP17X_MAX_VLANS;
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/* Attach the switch related functions. */
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if (IP17X_IS_SWITCH(sc, IP175C))
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ip175c_attach(sc);
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else if (IP17X_IS_SWITCH(sc, IP175D))
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ip175d_attach(sc);
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else
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/* We don't have support to all the models yet :-/ */
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return (ENXIO);
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/* Always attach the cpu port. */
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sc->phymask |= (1 << sc->cpuport);
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sc->ifp = malloc(sizeof(struct ifnet *) * sc->numports, M_IP17X,
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M_WAITOK | M_ZERO);
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sc->pvid = malloc(sizeof(uint32_t) * sc->numports, M_IP17X,
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M_WAITOK | M_ZERO);
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sc->miibus = malloc(sizeof(device_t *) * sc->numports, M_IP17X,
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M_WAITOK | M_ZERO);
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sc->portphy = malloc(sizeof(int) * sc->numports, M_IP17X,
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M_WAITOK | M_ZERO);
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/* Initialize the switch. */
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sc->hal.ip17x_reset(sc);
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/*
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* Attach the PHYs and complete the bus enumeration.
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*/
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err = ip17x_attach_phys(sc);
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if (err != 0)
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return (err);
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/*
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* Set the switch to port based vlans or disabled (if not supported
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* on this model).
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*/
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sc->hal.ip17x_set_vlan_mode(sc, ETHERSWITCH_VLAN_PORT);
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bus_generic_probe(dev);
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bus_enumerate_hinted_children(dev);
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err = bus_generic_attach(dev);
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if (err != 0)
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return (err);
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callout_init(&sc->callout_tick, 0);
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ip17x_tick(sc);
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return (0);
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}
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static int
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ip17x_detach(device_t dev)
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{
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struct ip17x_softc *sc;
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int i, port;
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sc = device_get_softc(dev);
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callout_drain(&sc->callout_tick);
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for (i=0; i < MII_NPHY; i++) {
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if (((1 << i) & sc->phymask) == 0)
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continue;
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port = sc->phyport[i];
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if (sc->miibus[port] != NULL)
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device_delete_child(dev, (*sc->miibus[port]));
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if (sc->ifp[port] != NULL)
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if_free(sc->ifp[port]);
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free(sc->miibus[port], M_IP17X);
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}
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free(sc->portphy, M_IP17X);
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free(sc->miibus, M_IP17X);
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free(sc->pvid, M_IP17X);
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free(sc->ifp, M_IP17X);
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/* Reset the switch. */
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sc->hal.ip17x_reset(sc);
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bus_generic_detach(dev);
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mtx_destroy(&sc->sc_mtx);
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return (0);
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}
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static inline struct mii_data *
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ip17x_miiforport(struct ip17x_softc *sc, int port)
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{
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if (port < 0 || port > sc->numports)
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return (NULL);
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return (device_get_softc(*sc->miibus[port]));
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}
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static inline struct ifnet *
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ip17x_ifpforport(struct ip17x_softc *sc, int port)
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{
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if (port < 0 || port > sc->numports)
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return (NULL);
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return (sc->ifp[port]);
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}
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/*
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* Poll the status for all PHYs.
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*/
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static void
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ip17x_miipollstat(struct ip17x_softc *sc)
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{
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struct mii_softc *miisc;
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struct mii_data *mii;
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int i, port;
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IP17X_LOCK_ASSERT(sc, MA_NOTOWNED);
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for (i = 0; i < MII_NPHY; i++) {
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if (((1 << i) & sc->phymask) == 0)
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continue;
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port = sc->phyport[i];
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if ((*sc->miibus[port]) == NULL)
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continue;
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mii = device_get_softc(*sc->miibus[port]);
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LIST_FOREACH(miisc, &mii->mii_phys, mii_list) {
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if (IFM_INST(mii->mii_media.ifm_cur->ifm_media) !=
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miisc->mii_inst)
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continue;
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ukphy_status(miisc);
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mii_phy_update(miisc, MII_POLLSTAT);
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}
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}
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}
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static void
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ip17x_tick(void *arg)
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{
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struct ip17x_softc *sc;
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sc = arg;
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ip17x_miipollstat(sc);
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callout_reset(&sc->callout_tick, hz, ip17x_tick, sc);
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}
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static void
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ip17x_lock(device_t dev)
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{
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struct ip17x_softc *sc;
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sc = device_get_softc(dev);
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IP17X_LOCK_ASSERT(sc, MA_NOTOWNED);
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IP17X_LOCK(sc);
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}
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static void
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ip17x_unlock(device_t dev)
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{
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struct ip17x_softc *sc;
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sc = device_get_softc(dev);
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IP17X_LOCK_ASSERT(sc, MA_OWNED);
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IP17X_UNLOCK(sc);
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}
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static etherswitch_info_t *
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ip17x_getinfo(device_t dev)
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{
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struct ip17x_softc *sc;
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sc = device_get_softc(dev);
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return (&sc->info);
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}
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static int
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ip17x_getport(device_t dev, etherswitch_port_t *p)
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{
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struct ip17x_softc *sc;
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struct ifmediareq *ifmr;
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struct mii_data *mii;
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int err, phy;
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sc = device_get_softc(dev);
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if (p->es_port < 0 || p->es_port >= sc->numports)
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return (ENXIO);
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phy = sc->portphy[p->es_port];
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/* Retrieve the PVID. */
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p->es_pvid = sc->pvid[phy];
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/* Port flags. */
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if (sc->addtag & (1 << phy))
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p->es_flags |= ETHERSWITCH_PORT_ADDTAG;
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if (sc->striptag & (1 << phy))
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p->es_flags |= ETHERSWITCH_PORT_STRIPTAG;
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ifmr = &p->es_ifmr;
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/* No media settings ? */
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if (p->es_ifmr.ifm_count == 0)
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return (0);
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mii = ip17x_miiforport(sc, p->es_port);
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if (mii == NULL)
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return (ENXIO);
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if (phy == sc->cpuport) {
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/* fill in fixed values for CPU port */
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p->es_flags |= ETHERSWITCH_PORT_CPU;
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ifmr->ifm_count = 0;
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if (sc->media == 100)
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ifmr->ifm_current = ifmr->ifm_active =
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IFM_ETHER | IFM_100_TX | IFM_FDX;
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else
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ifmr->ifm_current = ifmr->ifm_active =
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IFM_ETHER | IFM_1000_T | IFM_FDX;
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ifmr->ifm_mask = 0;
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ifmr->ifm_status = IFM_ACTIVE | IFM_AVALID;
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} else {
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err = ifmedia_ioctl(mii->mii_ifp, &p->es_ifr,
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&mii->mii_media, SIOCGIFMEDIA);
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if (err)
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return (err);
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}
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return (0);
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}
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static int
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ip17x_setport(device_t dev, etherswitch_port_t *p)
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{
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struct ip17x_softc *sc;
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struct ifmedia *ifm;
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struct ifnet *ifp;
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struct mii_data *mii;
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int phy;
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sc = device_get_softc(dev);
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if (p->es_port < 0 || p->es_port >= sc->numports)
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return (ENXIO);
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phy = sc->portphy[p->es_port];
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ifp = ip17x_ifpforport(sc, p->es_port);
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mii = ip17x_miiforport(sc, p->es_port);
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if (ifp == NULL || mii == NULL)
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return (ENXIO);
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/* Port flags. */
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if (sc->vlan_mode == ETHERSWITCH_VLAN_DOT1Q) {
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/* Set the PVID. */
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if (p->es_pvid != 0) {
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if (IP17X_IS_SWITCH(sc, IP175C) &&
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p->es_pvid > IP175C_LAST_VLAN)
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return (ENXIO);
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sc->pvid[phy] = p->es_pvid;
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}
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/* Mutually exclusive. */
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if (p->es_flags & ETHERSWITCH_PORT_ADDTAG &&
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p->es_flags & ETHERSWITCH_PORT_STRIPTAG)
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return (EINVAL);
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/* Reset the settings for this port. */
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sc->addtag &= ~(1 << phy);
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sc->striptag &= ~(1 << phy);
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/* And then set it to the new value. */
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if (p->es_flags & ETHERSWITCH_PORT_ADDTAG)
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sc->addtag |= (1 << phy);
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if (p->es_flags & ETHERSWITCH_PORT_STRIPTAG)
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sc->striptag |= (1 << phy);
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}
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/* Update the switch configuration. */
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if (sc->hal.ip17x_hw_setup(sc))
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return (ENXIO);
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/* Do not allow media changes on CPU port. */
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if (phy == sc->cpuport)
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return (0);
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/* No media settings ? */
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if (p->es_ifmr.ifm_count == 0)
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return (0);
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ifm = &mii->mii_media;
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return (ifmedia_ioctl(ifp, &p->es_ifr, ifm, SIOCSIFMEDIA));
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}
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static void
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ip17x_statchg(device_t dev)
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{
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DPRINTF(dev, "%s\n", __func__);
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}
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static int
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ip17x_ifmedia_upd(struct ifnet *ifp)
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{
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struct ip17x_softc *sc;
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struct mii_data *mii;
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sc = ifp->if_softc;
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DPRINTF(sc->sc_dev, "%s\n", __func__);
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mii = ip17x_miiforport(sc, ifp->if_dunit);
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if (mii == NULL)
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return (ENXIO);
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mii_mediachg(mii);
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return (0);
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}
|
|
|
|
static void
|
|
ip17x_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
|
|
{
|
|
struct ip17x_softc *sc;
|
|
struct mii_data *mii;
|
|
|
|
sc = ifp->if_softc;
|
|
DPRINTF(sc->sc_dev, "%s\n", __func__);
|
|
mii = ip17x_miiforport(sc, ifp->if_dunit);
|
|
if (mii == NULL)
|
|
return;
|
|
mii_pollstat(mii);
|
|
ifmr->ifm_active = mii->mii_media_active;
|
|
ifmr->ifm_status = mii->mii_media_status;
|
|
}
|
|
|
|
static int
|
|
ip17x_readreg(device_t dev, int addr)
|
|
{
|
|
struct ip17x_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
IP17X_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
/* Not supported. */
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ip17x_writereg(device_t dev, int addr, int value)
|
|
{
|
|
struct ip17x_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
IP17X_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
/* Not supported. */
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ip17x_getconf(device_t dev, etherswitch_conf_t *conf)
|
|
{
|
|
struct ip17x_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
/* Return the VLAN mode. */
|
|
conf->cmd = ETHERSWITCH_CONF_VLAN_MODE;
|
|
conf->vlan_mode = sc->hal.ip17x_get_vlan_mode(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ip17x_setconf(device_t dev, etherswitch_conf_t *conf)
|
|
{
|
|
struct ip17x_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
/* Set the VLAN mode. */
|
|
if (conf->cmd & ETHERSWITCH_CONF_VLAN_MODE)
|
|
sc->hal.ip17x_set_vlan_mode(sc, conf->vlan_mode);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t ip17x_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, ip17x_probe),
|
|
DEVMETHOD(device_attach, ip17x_attach),
|
|
DEVMETHOD(device_detach, ip17x_detach),
|
|
|
|
/* bus interface */
|
|
DEVMETHOD(bus_add_child, device_add_child_ordered),
|
|
|
|
/* MII interface */
|
|
DEVMETHOD(miibus_readreg, ip17x_readphy),
|
|
DEVMETHOD(miibus_writereg, ip17x_writephy),
|
|
DEVMETHOD(miibus_statchg, ip17x_statchg),
|
|
|
|
/* MDIO interface */
|
|
DEVMETHOD(mdio_readreg, ip17x_readphy),
|
|
DEVMETHOD(mdio_writereg, ip17x_writephy),
|
|
|
|
/* etherswitch interface */
|
|
DEVMETHOD(etherswitch_lock, ip17x_lock),
|
|
DEVMETHOD(etherswitch_unlock, ip17x_unlock),
|
|
DEVMETHOD(etherswitch_getinfo, ip17x_getinfo),
|
|
DEVMETHOD(etherswitch_readreg, ip17x_readreg),
|
|
DEVMETHOD(etherswitch_writereg, ip17x_writereg),
|
|
DEVMETHOD(etherswitch_readphyreg, ip17x_readphy),
|
|
DEVMETHOD(etherswitch_writephyreg, ip17x_writephy),
|
|
DEVMETHOD(etherswitch_getport, ip17x_getport),
|
|
DEVMETHOD(etherswitch_setport, ip17x_setport),
|
|
DEVMETHOD(etherswitch_getvgroup, ip17x_getvgroup),
|
|
DEVMETHOD(etherswitch_setvgroup, ip17x_setvgroup),
|
|
DEVMETHOD(etherswitch_getconf, ip17x_getconf),
|
|
DEVMETHOD(etherswitch_setconf, ip17x_setconf),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_0(ip17x, ip17x_driver, ip17x_methods,
|
|
sizeof(struct ip17x_softc));
|
|
static devclass_t ip17x_devclass;
|
|
|
|
DRIVER_MODULE(ip17x, mdio, ip17x_driver, ip17x_devclass, 0, 0);
|
|
DRIVER_MODULE(miibus, ip17x, miibus_driver, miibus_devclass, 0, 0);
|
|
DRIVER_MODULE(mdio, ip17x, mdio_driver, mdio_devclass, 0, 0);
|
|
DRIVER_MODULE(etherswitch, ip17x, etherswitch_driver, etherswitch_devclass, 0, 0);
|
|
MODULE_VERSION(ip17x, 1);
|
|
MODULE_DEPEND(ip17x, miibus, 1, 1, 1); /* XXX which versions? */
|
|
MODULE_DEPEND(ip17x, etherswitch, 1, 1, 1); /* XXX which versions? */
|