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freebsd-skq/sys/dev/mii/rlswitch.c
Marius Strobl 8e5d93dbb4 Convert the PHY drivers to honor the mii_flags passed down and convert 
the NIC drivers as well as the PHY drivers to take advantage of the
mii_attach() introduced in r213878 to get rid of certain hacks. For
the most part these were:
- Artificially limiting miibus_{read,write}reg methods to certain PHY
  addresses; we now let mii_attach() only probe the PHY at the desired
  address(es) instead.
- PHY drivers setting MIIF_* flags based on the NIC driver they hang
  off from, partly even based on grabbing and using the softc of the
  parent; we now pass these flags down from the NIC to the PHY drivers
  via mii_attach(). This got us rid of all such hacks except those of
  brgphy() in combination with bce(4) and bge(4), which is way beyond
  what can be expressed with simple flags.

While at it, I took the opportunity to change the NIC drivers to pass
up the error returned by mii_attach() (previously by mii_phy_probe())
and unify the error message used in this case where and as appropriate
as mii_attach() actually can fail for a number of reasons, not just
because of no PHY(s) being present at the expected address(es).

Reviewed by:	jhb, yongari
2010-10-15 14:52:11 +00:00

414 lines
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/*-
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
* Copyright (c) 2006 Bernd Walter. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* driver for RealTek 8305 pseudo PHYs
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <sys/bus.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include "miidevs.h"
#include <machine/bus.h>
#include <pci/if_rlreg.h>
#include "miibus_if.h"
//#define RL_DEBUG
#define RL_VLAN
static int rlswitch_probe(device_t);
static int rlswitch_attach(device_t);
static device_method_t rlswitch_methods[] = {
/* device interface */
DEVMETHOD(device_probe, rlswitch_probe),
DEVMETHOD(device_attach, rlswitch_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
{ 0, 0 }
};
static devclass_t rlswitch_devclass;
static driver_t rlswitch_driver = {
"rlswitch",
rlswitch_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(rlswitch, miibus, rlswitch_driver, rlswitch_devclass, 0, 0);
static int rlswitch_service(struct mii_softc *, struct mii_data *, int);
static void rlswitch_status(struct mii_softc *);
#ifdef RL_DEBUG
static void rlswitch_phydump(device_t dev);
#endif
static const struct mii_phydesc rlswitches[] = {
MII_PHY_DESC(xxREALTEK, RTL8305SC),
MII_PHY_END
};
static int
rlswitch_probe(device_t dev)
{
int rv;
rv = mii_phy_dev_probe(dev, rlswitches, BUS_PROBE_DEFAULT);
if (rv <= 0)
return (rv);
return (ENXIO);
}
static int
rlswitch_attach(device_t dev)
{
struct mii_softc *sc;
struct mii_attach_args *ma;
struct mii_data *mii;
sc = device_get_softc(dev);
ma = device_get_ivars(dev);
sc->mii_dev = device_get_parent(dev);
mii = ma->mii_data;
LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
sc->mii_flags = miibus_get_flags(dev);
sc->mii_inst = mii->mii_instance++;
sc->mii_phy = ma->mii_phyno;
sc->mii_service = rlswitch_service;
sc->mii_pdata = mii;
/*
* We handle all pseudo PHYs in a single instance.
*/
sc->mii_flags |= MIIF_NOISOLATE;
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
#if 0
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
MII_MEDIA_100_TX);
#endif
sc->mii_capabilities = BMSR_100TXFDX & ma->mii_capmask;
device_printf(dev, " ");
mii_phy_add_media(sc);
printf("\n");
#undef ADD
#ifdef RL_DEBUG
rlswitch_phydump(dev);
#endif
#ifdef RL_VLAN
int val;
/* Global Control 0 */
val = 0;
val |= 0 << 10; /* enable 802.1q VLAN Tag support */
val |= 0 << 9; /* enable VLAN ingress filtering */
val |= 1 << 8; /* disable VLAN tag admit control */
val |= 1 << 6; /* internal use */
val |= 1 << 5; /* internal use */
val |= 1 << 4; /* internal use */
val |= 1 << 3; /* internal use */
val |= 1 << 1; /* reserved */
MIIBUS_WRITEREG(sc->mii_dev, 0, 16, val);
/* Global Control 2 */
val = 0;
val |= 1 << 15; /* reserved */
val |= 0 << 14; /* enable 1552 Bytes support */
val |= 1 << 13; /* enable broadcast input drop */
val |= 1 << 12; /* forward reserved control frames */
val |= 1 << 11; /* disable forwarding unicast frames to other VLAN's */
val |= 1 << 10; /* disable forwarding ARP broadcasts to other VLAN's */
val |= 1 << 9; /* enable 48 pass 1 */
val |= 0 << 8; /* enable VLAN */
val |= 1 << 7; /* reserved */
val |= 1 << 6; /* enable defer */
val |= 1 << 5; /* 43ms LED blink time */
val |= 3 << 3; /* 16:1 queue weight */
val |= 1 << 2; /* disable broadcast storm control */
val |= 1 << 1; /* enable power-on LED blinking */
val |= 1 << 0; /* reserved */
MIIBUS_WRITEREG(sc->mii_dev, 0, 18, val);
/* Port 0 Control Register 0 */
val = 0;
val |= 1 << 15; /* reserved */
val |= 1 << 11; /* drop received packets with wrong VLAN tag */
val |= 1 << 10; /* disable 802.1p priority classification */
val |= 1 << 9; /* disable diffserv priority classification */
val |= 1 << 6; /* internal use */
val |= 3 << 4; /* internal use */
val |= 1 << 3; /* internal use */
val |= 1 << 2; /* internal use */
val |= 1 << 0; /* remove VLAN tags on output */
MIIBUS_WRITEREG(sc->mii_dev, 0, 22, val);
/* Port 1 Control Register 0 */
val = 0;
val |= 1 << 15; /* reserved */
val |= 1 << 11; /* drop received packets with wrong VLAN tag */
val |= 1 << 10; /* disable 802.1p priority classification */
val |= 1 << 9; /* disable diffserv priority classification */
val |= 1 << 6; /* internal use */
val |= 3 << 4; /* internal use */
val |= 1 << 3; /* internal use */
val |= 1 << 2; /* internal use */
val |= 1 << 0; /* remove VLAN tags on output */
MIIBUS_WRITEREG(sc->mii_dev, 1, 22, val);
/* Port 2 Control Register 0 */
val = 0;
val |= 1 << 15; /* reserved */
val |= 1 << 11; /* drop received packets with wrong VLAN tag */
val |= 1 << 10; /* disable 802.1p priority classification */
val |= 1 << 9; /* disable diffserv priority classification */
val |= 1 << 6; /* internal use */
val |= 3 << 4; /* internal use */
val |= 1 << 3; /* internal use */
val |= 1 << 2; /* internal use */
val |= 1 << 0; /* remove VLAN tags on output */
MIIBUS_WRITEREG(sc->mii_dev, 2, 22, val);
/* Port 3 Control Register 0 */
val = 0;
val |= 1 << 15; /* reserved */
val |= 1 << 11; /* drop received packets with wrong VLAN tag */
val |= 1 << 10; /* disable 802.1p priority classification */
val |= 1 << 9; /* disable diffserv priority classification */
val |= 1 << 6; /* internal use */
val |= 3 << 4; /* internal use */
val |= 1 << 3; /* internal use */
val |= 1 << 2; /* internal use */
val |= 1 << 0; /* remove VLAN tags on output */
MIIBUS_WRITEREG(sc->mii_dev, 3, 22, val);
/* Port 4 (system port) Control Register 0 */
val = 0;
val |= 1 << 15; /* reserved */
val |= 0 << 11; /* don't drop received packets with wrong VLAN tag */
val |= 1 << 10; /* disable 802.1p priority classification */
val |= 1 << 9; /* disable diffserv priority classification */
val |= 1 << 6; /* internal use */
val |= 3 << 4; /* internal use */
val |= 1 << 3; /* internal use */
val |= 1 << 2; /* internal use */
val |= 2 << 0; /* add VLAN tags for untagged packets on output */
MIIBUS_WRITEREG(sc->mii_dev, 4, 22, val);
/* Port 0 Control Register 1 and VLAN A */
val = 0;
val |= 0x0 << 12; /* Port 0 VLAN Index */
val |= 1 << 11; /* internal use */
val |= 1 << 10; /* internal use */
val |= 1 << 9; /* internal use */
val |= 1 << 7; /* internal use */
val |= 1 << 6; /* internal use */
val |= 0x11 << 0; /* VLAN A membership */
MIIBUS_WRITEREG(sc->mii_dev, 0, 24, val);
/* Port 0 Control Register 2 and VLAN A */
val = 0;
val |= 1 << 15; /* internal use */
val |= 1 << 14; /* internal use */
val |= 1 << 13; /* internal use */
val |= 1 << 12; /* internal use */
val |= 0x100 << 0; /* VLAN A ID */
MIIBUS_WRITEREG(sc->mii_dev, 0, 25, val);
/* Port 1 Control Register 1 and VLAN B */
val = 0;
val |= 0x1 << 12; /* Port 1 VLAN Index */
val |= 1 << 11; /* internal use */
val |= 1 << 10; /* internal use */
val |= 1 << 9; /* internal use */
val |= 1 << 7; /* internal use */
val |= 1 << 6; /* internal use */
val |= 0x12 << 0; /* VLAN B membership */
MIIBUS_WRITEREG(sc->mii_dev, 1, 24, val);
/* Port 1 Control Register 2 and VLAN B */
val = 0;
val |= 1 << 15; /* internal use */
val |= 1 << 14; /* internal use */
val |= 1 << 13; /* internal use */
val |= 1 << 12; /* internal use */
val |= 0x101 << 0; /* VLAN B ID */
MIIBUS_WRITEREG(sc->mii_dev, 1, 25, val);
/* Port 2 Control Register 1 and VLAN C */
val = 0;
val |= 0x2 << 12; /* Port 2 VLAN Index */
val |= 1 << 11; /* internal use */
val |= 1 << 10; /* internal use */
val |= 1 << 9; /* internal use */
val |= 1 << 7; /* internal use */
val |= 1 << 6; /* internal use */
val |= 0x14 << 0; /* VLAN C membership */
MIIBUS_WRITEREG(sc->mii_dev, 2, 24, val);
/* Port 2 Control Register 2 and VLAN C */
val = 0;
val |= 1 << 15; /* internal use */
val |= 1 << 14; /* internal use */
val |= 1 << 13; /* internal use */
val |= 1 << 12; /* internal use */
val |= 0x102 << 0; /* VLAN C ID */
MIIBUS_WRITEREG(sc->mii_dev, 2, 25, val);
/* Port 3 Control Register 1 and VLAN D */
val = 0;
val |= 0x3 << 12; /* Port 3 VLAN Index */
val |= 1 << 11; /* internal use */
val |= 1 << 10; /* internal use */
val |= 1 << 9; /* internal use */
val |= 1 << 7; /* internal use */
val |= 1 << 6; /* internal use */
val |= 0x18 << 0; /* VLAN D membership */
MIIBUS_WRITEREG(sc->mii_dev, 3, 24, val);
/* Port 3 Control Register 2 and VLAN D */
val = 0;
val |= 1 << 15; /* internal use */
val |= 1 << 14; /* internal use */
val |= 1 << 13; /* internal use */
val |= 1 << 12; /* internal use */
val |= 0x103 << 0; /* VLAN D ID */
MIIBUS_WRITEREG(sc->mii_dev, 3, 25, val);
/* Port 4 Control Register 1 and VLAN E */
val = 0;
val |= 0x0 << 12; /* Port 4 VLAN Index */
val |= 1 << 11; /* internal use */
val |= 1 << 10; /* internal use */
val |= 1 << 9; /* internal use */
val |= 1 << 7; /* internal use */
val |= 1 << 6; /* internal use */
val |= 0 << 0; /* VLAN E membership */
MIIBUS_WRITEREG(sc->mii_dev, 4, 24, val);
/* Port 4 Control Register 2 and VLAN E */
val = 0;
val |= 1 << 15; /* internal use */
val |= 1 << 14; /* internal use */
val |= 1 << 13; /* internal use */
val |= 1 << 12; /* internal use */
val |= 0x104 << 0; /* VLAN E ID */
MIIBUS_WRITEREG(sc->mii_dev, 4, 25, val);
#endif
#ifdef RL_DEBUG
rlswitch_phydump(dev);
#endif
MIIBUS_MEDIAINIT(sc->mii_dev);
return (0);
}
static int
rlswitch_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
break;
case MII_TICK:
/*
* Is the interface even up?
*/
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
return (0);
break;
}
/* Update the media status. */
rlswitch_status(sc);
/* Callback if something changed. */
// mii_phy_update(sc, cmd);
return (0);
}
static void
rlswitch_status(struct mii_softc *phy)
{
struct mii_data *mii = phy->mii_pdata;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
mii->mii_media_status |= IFM_ACTIVE;
mii->mii_media_active |= IFM_100_TX|IFM_FDX;
}
#ifdef RL_DEBUG
static void
rlswitch_phydump(device_t dev) {
int phy, reg, val;
struct mii_softc *sc;
sc = device_get_softc(dev);
device_printf(dev, "rlswitchphydump\n");
for (phy = 0; phy <= 5; phy++) {
printf("PHY%i:", phy);
for (reg = 0; reg <= 31; reg++) {
val = MIIBUS_READREG(sc->mii_dev, phy, reg);
printf(" 0x%x", val);
}
printf("\n");
}
}
#endif
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