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head/sys/dev/etherswitch/e6000sw/e6060sw.c

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/*-
* Copyright (c) 2016 Hiroki Mori
* Copyright (c) 2013 Luiz Otavio O Souza.
* Copyright (c) 2011-2012 Stefan Bethke.
* Copyright (c) 2012 Adrian Chadd.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
/*
* This code is Marvell 88E6060 ethernet switch support code on etherswitch
* framework.
* Current code is only support port base vlan. Not support ingress/egress
* trailer. This switch chip can't work vlan(4) support.
*/
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/errno.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/ethernet.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <machine/bus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>
#include "mdio_if.h"
#include "miibus_if.h"
#include "etherswitch_if.h"
#define SMI_OFFSET 0x10
#define CORE_REGISTER (SMI_OFFSET + 8)
#define SWITCH_ID 3
#define PORT_VLAN_MAP 6
MALLOC_DECLARE(M_E6060SW);
MALLOC_DEFINE(M_E6060SW, "e6060sw", "e6060sw data structures");
struct e6060sw_softc {
struct mtx sc_mtx; /* serialize access to softc */
device_t sc_dev;
int vlan_mode;
int media; /* cpu port media */
int cpuport; /* which PHY is connected to the CPU */
int phymask; /* PHYs we manage */
int numports; /* number of ports */
int ifpport[MII_NPHY];
int *portphy;
char **ifname;
device_t **miibus;
struct ifnet **ifp;
struct callout callout_tick;
etherswitch_info_t info;
};
#define E6060SW_LOCK(_sc) \
mtx_lock(&(_sc)->sc_mtx)
#define E6060SW_UNLOCK(_sc) \
mtx_unlock(&(_sc)->sc_mtx)
#define E6060SW_LOCK_ASSERT(_sc, _what) \
mtx_assert(&(_sc)->sc_mtx, (_what))
#define E6060SW_TRYLOCK(_sc) \
mtx_trylock(&(_sc)->sc_mtx)
#if defined(DEBUG)
#define DPRINTF(dev, args...) device_printf(dev, args)
#else
#define DPRINTF(dev, args...)
#endif
static inline int e6060sw_portforphy(struct e6060sw_softc *, int);
static void e6060sw_tick(void *);
static int e6060sw_ifmedia_upd(struct ifnet *);
static void e6060sw_ifmedia_sts(struct ifnet *, struct ifmediareq *);
static int
e6060sw_probe(device_t dev)
{
int data;
struct e6060sw_softc *sc;
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
data = MDIO_READREG(device_get_parent(dev), CORE_REGISTER, SWITCH_ID);
if (bootverbose)
device_printf(dev,"Switch Identifier Register %x\n", data);
if ((data >> 4) != 0x060) {
return (ENXIO);
}
device_set_desc_copy(dev, "Marvell 88E6060 MDIO switch driver");
return (BUS_PROBE_DEFAULT);
}
static int
e6060sw_attach_phys(struct e6060sw_softc *sc)
{
int phy, port, err;
char name[IFNAMSIZ];
port = 0;
err = 0;
/* PHYs need an interface, so we generate a dummy one */
snprintf(name, IFNAMSIZ, "%sport", device_get_nameunit(sc->sc_dev));
for (phy = 0; phy < sc->numports; phy++) {
if (((1 << phy) & sc->phymask) == 0)
continue;
sc->ifpport[phy] = port;
sc->portphy[port] = phy;
sc->ifp[port] = if_alloc(IFT_ETHER);
sc->ifp[port]->if_softc = sc;
sc->ifp[port]->if_flags |= IFF_UP | IFF_BROADCAST |
IFF_DRV_RUNNING | IFF_SIMPLEX;
if_initname(sc->ifp[port], name, port);
sc->miibus[port] = malloc(sizeof(device_t), M_E6060SW,
M_WAITOK | M_ZERO);
err = mii_attach(sc->sc_dev, sc->miibus[port], sc->ifp[port],
e6060sw_ifmedia_upd, e6060sw_ifmedia_sts, \
BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, 0);
DPRINTF(sc->sc_dev, "%s attached to pseudo interface %s\n",
device_get_nameunit(*sc->miibus[port]),
sc->ifp[port]->if_xname);
if (err != 0) {
device_printf(sc->sc_dev,
"attaching PHY %d failed\n",
phy);
break;
}
++port;
}
sc->info.es_nports = port;
if (sc->cpuport != -1) {
/* assume cpuport is last one */
sc->ifpport[sc->cpuport] = port;
sc->portphy[port] = sc->cpuport;
++sc->info.es_nports;
}
return (err);
}
static int
e6060sw_attach(device_t dev)
{
struct e6060sw_softc *sc;
int err;
sc = device_get_softc(dev);
err = 0;
sc->sc_dev = dev;
mtx_init(&sc->sc_mtx, "e6060sw", NULL, MTX_DEF);
strlcpy(sc->info.es_name, device_get_desc(dev),
sizeof(sc->info.es_name));
/* XXX Defaults */
sc->numports = 6;
sc->phymask = 0x1f;
sc->cpuport = 5;
sc->media = 100;
(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
"numports", &sc->numports);
(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
"phymask", &sc->phymask);
(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
"cpuport", &sc->cpuport);
(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
"media", &sc->media);
sc->info.es_nvlangroups = sc->numports;
sc->info.es_vlan_caps = ETHERSWITCH_VLAN_PORT;
sc->ifp = malloc(sizeof(struct ifnet *) * sc->numports, M_E6060SW,
M_WAITOK | M_ZERO);
sc->ifname = malloc(sizeof(char *) * sc->numports, M_E6060SW,
M_WAITOK | M_ZERO);
sc->miibus = malloc(sizeof(device_t *) * sc->numports, M_E6060SW,
M_WAITOK | M_ZERO);
sc->portphy = malloc(sizeof(int) * sc->numports, M_E6060SW,
M_WAITOK | M_ZERO);
/*
* Attach the PHYs and complete the bus enumeration.
*/
err = e6060sw_attach_phys(sc);
if (err != 0)
return (err);
bus_generic_probe(dev);
bus_enumerate_hinted_children(dev);
err = bus_generic_attach(dev);
if (err != 0)
return (err);
callout_init(&sc->callout_tick, 0);
e6060sw_tick(sc);
return (err);
}
static int
e6060sw_detach(device_t dev)
{
struct e6060sw_softc *sc;
int i, port;
sc = device_get_softc(dev);
callout_drain(&sc->callout_tick);
for (i = 0; i < MII_NPHY; i++) {
if (((1 << i) & sc->phymask) == 0)
continue;
port = e6060sw_portforphy(sc, i);
if (sc->miibus[port] != NULL)
device_delete_child(dev, (*sc->miibus[port]));
if (sc->ifp[port] != NULL)
if_free(sc->ifp[port]);
free(sc->ifname[port], M_E6060SW);
free(sc->miibus[port], M_E6060SW);
}
free(sc->portphy, M_E6060SW);
free(sc->miibus, M_E6060SW);
free(sc->ifname, M_E6060SW);
free(sc->ifp, M_E6060SW);
bus_generic_detach(dev);
mtx_destroy(&sc->sc_mtx);
return (0);
}
/*
* Convert PHY number to port number.
*/
static inline int
e6060sw_portforphy(struct e6060sw_softc *sc, int phy)
{
return (sc->ifpport[phy]);
}
static inline struct mii_data *
e6060sw_miiforport(struct e6060sw_softc *sc, int port)
{
if (port < 0 || port > sc->numports)
return (NULL);
if (port == sc->cpuport)
return (NULL);
return (device_get_softc(*sc->miibus[port]));
}
static inline struct ifnet *
e6060sw_ifpforport(struct e6060sw_softc *sc, int port)
{
if (port < 0 || port > sc->numports)
return (NULL);
return (sc->ifp[port]);
}
/*
* Poll the status for all PHYs.
*/
static void
e6060sw_miipollstat(struct e6060sw_softc *sc)
{
int i, port;
struct mii_data *mii;
struct mii_softc *miisc;
E6060SW_LOCK_ASSERT(sc, MA_NOTOWNED);
for (i = 0; i < MII_NPHY; i++) {
if (((1 << i) & sc->phymask) == 0)
continue;
port = e6060sw_portforphy(sc, i);
if ((*sc->miibus[port]) == NULL)
continue;
mii = device_get_softc(*sc->miibus[port]);
LIST_FOREACH(miisc, &mii->mii_phys, mii_list) {
if (IFM_INST(mii->mii_media.ifm_cur->ifm_media) !=
miisc->mii_inst)
continue;
ukphy_status(miisc);
mii_phy_update(miisc, MII_POLLSTAT);
}
}
}
static void
e6060sw_tick(void *arg)
{
struct e6060sw_softc *sc;
sc = arg;
e6060sw_miipollstat(sc);
callout_reset(&sc->callout_tick, hz, e6060sw_tick, sc);
}
static void
e6060sw_lock(device_t dev)
{
struct e6060sw_softc *sc;
sc = device_get_softc(dev);
E6060SW_LOCK_ASSERT(sc, MA_NOTOWNED);
E6060SW_LOCK(sc);
}
static void
e6060sw_unlock(device_t dev)
{
struct e6060sw_softc *sc;
sc = device_get_softc(dev);
E6060SW_LOCK_ASSERT(sc, MA_OWNED);
E6060SW_UNLOCK(sc);
}
static etherswitch_info_t *
e6060sw_getinfo(device_t dev)
{
struct e6060sw_softc *sc;
sc = device_get_softc(dev);
return (&sc->info);
}
static int
e6060sw_getport(device_t dev, etherswitch_port_t *p)
{
struct e6060sw_softc *sc;
struct mii_data *mii;
struct ifmediareq *ifmr;
int err, phy;
sc = device_get_softc(dev);
ifmr = &p->es_ifmr;
if (p->es_port < 0 || p->es_port >= sc->numports)
return (ENXIO);
p->es_pvid = 0;
phy = sc->portphy[p->es_port];
mii = e6060sw_miiforport(sc, p->es_port);
if (sc->cpuport != -1 && phy == sc->cpuport) {
/* fill in fixed values for CPU port */
p->es_flags |= ETHERSWITCH_PORT_CPU;
ifmr->ifm_count = 0;
if (sc->media == 100)
ifmr->ifm_current = ifmr->ifm_active =
IFM_ETHER | IFM_100_TX | IFM_FDX;
else
ifmr->ifm_current = ifmr->ifm_active =
IFM_ETHER | IFM_1000_T | IFM_FDX;
ifmr->ifm_mask = 0;
ifmr->ifm_status = IFM_ACTIVE | IFM_AVALID;
} else if (mii != NULL) {
err = ifmedia_ioctl(mii->mii_ifp, &p->es_ifr,
&mii->mii_media, SIOCGIFMEDIA);
if (err)
return (err);
} else {
return (ENXIO);
}
return (0);
}
static int
e6060sw_setport(device_t dev, etherswitch_port_t *p)
{
struct e6060sw_softc *sc;
struct ifmedia *ifm;
struct mii_data *mii;
struct ifnet *ifp;
int err;
sc = device_get_softc(dev);
if (p->es_port < 0 || p->es_port >= sc->numports)
return (ENXIO);
if (sc->portphy[p->es_port] == sc->cpuport)
return (ENXIO);
mii = e6060sw_miiforport(sc, p->es_port);
if (mii == NULL)
return (ENXIO);
ifp = e6060sw_ifpforport(sc, p->es_port);
ifm = &mii->mii_media;
err = ifmedia_ioctl(ifp, &p->es_ifr, ifm, SIOCSIFMEDIA);
return (err);
}
static int
e6060sw_getvgroup(device_t dev, etherswitch_vlangroup_t *vg)
{
struct e6060sw_softc *sc;
int data;
sc = device_get_softc(dev);
if (sc->vlan_mode == ETHERSWITCH_VLAN_PORT) {
vg->es_vid = ETHERSWITCH_VID_VALID;
vg->es_vid |= vg->es_vlangroup;
data = MDIO_READREG(device_get_parent(dev), CORE_REGISTER + vg->es_vlangroup, PORT_VLAN_MAP);
vg->es_member_ports = data & 0x3f;
vg->es_untagged_ports = vg->es_member_ports;
vg->es_fid = 0;
} else {
vg->es_vid = 0;
}
return (0);
}
static int
e6060sw_setvgroup(device_t dev, etherswitch_vlangroup_t *vg)
{
struct e6060sw_softc *sc;
int data;
sc = device_get_softc(dev);
if (sc->vlan_mode == ETHERSWITCH_VLAN_PORT) {
data = MDIO_READREG(device_get_parent(dev), CORE_REGISTER + vg->es_vlangroup, PORT_VLAN_MAP);
data &= ~0x3f;
data |= vg->es_member_ports;
MDIO_WRITEREG(device_get_parent(dev), CORE_REGISTER + vg->es_vlangroup, PORT_VLAN_MAP, data);
}
return (0);
}
static void
e6060sw_reset_vlans(device_t dev)
{
struct e6060sw_softc *sc;
uint32_t ports;
int i;
int data;
sc = device_get_softc(dev);
for (i = 0; i <= sc->numports; i++) {
ports = (1 << (sc->numports + 1)) - 1;
ports &= ~(1 << i);
if (sc->vlan_mode == ETHERSWITCH_VLAN_PORT) {
data = i << 12;
} else {
data = 0;
}
data |= ports;
MDIO_WRITEREG(device_get_parent(dev), CORE_REGISTER + i, PORT_VLAN_MAP, data);
}
}
static int
e6060sw_getconf(device_t dev, etherswitch_conf_t *conf)
{
struct e6060sw_softc *sc;
sc = device_get_softc(dev);
/* Return the VLAN mode. */
conf->cmd = ETHERSWITCH_CONF_VLAN_MODE;
conf->vlan_mode = sc->vlan_mode;
return (0);
}
static int
e6060sw_setconf(device_t dev, etherswitch_conf_t *conf)
{
struct e6060sw_softc *sc;
sc = device_get_softc(dev);
/* Set the VLAN mode. */
if (conf->cmd & ETHERSWITCH_CONF_VLAN_MODE) {
if (conf->vlan_mode == ETHERSWITCH_VLAN_PORT) {
sc->vlan_mode = ETHERSWITCH_VLAN_PORT;
} else {
sc->vlan_mode = 0;
}
/* Reset VLANs. */
e6060sw_reset_vlans(dev);
}
return (0);
}
static void
e6060sw_statchg(device_t dev)
{
DPRINTF(dev, "%s\n", __func__);
}
static int
e6060sw_ifmedia_upd(struct ifnet *ifp)
{
struct e6060sw_softc *sc;
struct mii_data *mii;
sc = ifp->if_softc;
mii = e6060sw_miiforport(sc, ifp->if_dunit);
DPRINTF(sc->sc_dev, "%s\n", __func__);
if (mii == NULL)
return (ENXIO);
mii_mediachg(mii);
return (0);
}
static void
e6060sw_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct e6060sw_softc *sc;
struct mii_data *mii;
sc = ifp->if_softc;
mii = e6060sw_miiforport(sc, ifp->if_dunit);
DPRINTF(sc->sc_dev, "%s\n", __func__);
if (mii == NULL)
return;
mii_pollstat(mii);
ifmr->ifm_active = mii->mii_media_active;
ifmr->ifm_status = mii->mii_media_status;
}
static int
e6060sw_readphy(device_t dev, int phy, int reg)
{
struct e6060sw_softc *sc;
int data;
phy += SMI_OFFSET;
sc = device_get_softc(dev);
E6060SW_LOCK_ASSERT(sc, MA_NOTOWNED);
if (phy < 0 || phy >= 32)
return (ENXIO);
if (reg < 0 || reg >= 32)
return (ENXIO);
E6060SW_LOCK(sc);
data = MDIO_READREG(device_get_parent(dev), phy, reg);
E6060SW_UNLOCK(sc);
return (data);
}
static int
e6060sw_writephy(device_t dev, int phy, int reg, int data)
{
struct e6060sw_softc *sc;
int err;
phy += SMI_OFFSET;
sc = device_get_softc(dev);
E6060SW_LOCK_ASSERT(sc, MA_NOTOWNED);
if (phy < 0 || phy >= 32)
return (ENXIO);
if (reg < 0 || reg >= 32)
return (ENXIO);
E6060SW_LOCK(sc);
err = MDIO_WRITEREG(device_get_parent(dev), phy, reg, data);
E6060SW_UNLOCK(sc);
return (err);
}
/* addr is 5-8 bit is SMI Device Addres, 0-4 bit is SMI Register Address */
static int
e6060sw_readreg(device_t dev, int addr)
{
int devaddr, regaddr;
devaddr = (addr >> 5) & 0xf;
regaddr = addr & 0x1f;
return MDIO_READREG(device_get_parent(dev), devaddr+SMI_OFFSET, regaddr);
}
/* addr is 5-8 bit is SMI Device Addres, 0-4 bit is SMI Register Address */
static int
e6060sw_writereg(device_t dev, int addr, int value)
{
int devaddr, regaddr;
devaddr = (addr >> 5) & 0xf;
regaddr = addr & 0x1f;
return (MDIO_WRITEREG(device_get_parent(dev), devaddr+SMI_OFFSET, regaddr, value));
}
static device_method_t e6060sw_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, e6060sw_probe),
DEVMETHOD(device_attach, e6060sw_attach),
DEVMETHOD(device_detach, e6060sw_detach),
/* bus interface */
DEVMETHOD(bus_add_child, device_add_child_ordered),
/* MII interface */
DEVMETHOD(miibus_readreg, e6060sw_readphy),
DEVMETHOD(miibus_writereg, e6060sw_writephy),
DEVMETHOD(miibus_statchg, e6060sw_statchg),
/* MDIO interface */
DEVMETHOD(mdio_readreg, e6060sw_readphy),
DEVMETHOD(mdio_writereg, e6060sw_writephy),
/* etherswitch interface */
DEVMETHOD(etherswitch_lock, e6060sw_lock),
DEVMETHOD(etherswitch_unlock, e6060sw_unlock),
DEVMETHOD(etherswitch_getinfo, e6060sw_getinfo),
DEVMETHOD(etherswitch_readreg, e6060sw_readreg),
DEVMETHOD(etherswitch_writereg, e6060sw_writereg),
DEVMETHOD(etherswitch_readphyreg, e6060sw_readphy),
DEVMETHOD(etherswitch_writephyreg, e6060sw_writephy),
DEVMETHOD(etherswitch_getport, e6060sw_getport),
DEVMETHOD(etherswitch_setport, e6060sw_setport),
DEVMETHOD(etherswitch_getvgroup, e6060sw_getvgroup),
DEVMETHOD(etherswitch_setvgroup, e6060sw_setvgroup),
DEVMETHOD(etherswitch_setconf, e6060sw_setconf),
DEVMETHOD(etherswitch_getconf, e6060sw_getconf),
DEVMETHOD_END
};
DEFINE_CLASS_0(e6060sw, e6060sw_driver, e6060sw_methods,
sizeof(struct e6060sw_softc));
static devclass_t e6060sw_devclass;
DRIVER_MODULE(e6060sw, mdio, e6060sw_driver, e6060sw_devclass, 0, 0);
DRIVER_MODULE(miibus, e6060sw, miibus_driver, miibus_devclass, 0, 0);
DRIVER_MODULE(mdio, e6060sw, mdio_driver, mdio_devclass, 0, 0);
DRIVER_MODULE(etherswitch, e6060sw, etherswitch_driver, etherswitch_devclass, 0, 0);
MODULE_VERSION(e6060sw, 1);
MODULE_DEPEND(e6060sw, miibus, 1, 1, 1); /* XXX which versions? */
MODULE_DEPEND(e6060sw, etherswitch, 1, 1, 1); /* XXX which versions? */