2024-02-08 23:11:55 +03:00
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/* $NetBSD: mii.c,v 1.59 2024/02/08 20:11:55 andvar Exp $ */
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1998-08-11 03:55:16 +04:00
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/*-
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2020-03-16 02:04:50 +03:00
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* Copyright (c) 1998, 2000, 2020 The NetBSD Foundation, Inc.
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1998-08-11 03:55:16 +04:00
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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1997-10-17 21:33:45 +04:00
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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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1998-08-11 03:55:16 +04:00
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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2024-02-08 23:11:55 +03:00
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* MII bus layer, glues MII-capable network interface drivers to shareable
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2001-03-24 23:44:26 +03:00
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* PHY drivers.
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1997-10-17 21:33:45 +04:00
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*/
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2001-11-13 10:38:28 +03:00
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#include <sys/cdefs.h>
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2024-02-08 23:11:55 +03:00
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__KERNEL_RCSID(0, "$NetBSD: mii.c,v 1.59 2024/02/08 20:11:55 andvar Exp $");
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2020-03-16 02:04:50 +03:00
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#define __IFMEDIA_PRIVATE
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2001-11-13 10:38:28 +03:00
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1997-10-17 21:33:45 +04:00
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#include <sys/param.h>
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#include <sys/device.h>
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1998-08-11 03:55:16 +04:00
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#include <sys/systm.h>
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1997-10-17 21:33:45 +04:00
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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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1998-08-11 03:55:16 +04:00
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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1997-10-17 21:33:45 +04:00
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2004-09-02 00:59:30 +04:00
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#include "locators.h"
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2004-08-23 10:16:06 +04:00
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static int mii_print(void *, const char *);
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1997-10-17 21:33:45 +04:00
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1998-08-11 03:55:16 +04:00
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/*
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* Helper function used by network interface drivers, attaches PHYs
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* to the network interface driver parent.
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*/
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void
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2008-05-04 21:06:09 +04:00
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mii_attach(device_t parent, struct mii_data *mii, int capmask,
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2001-08-25 22:04:01 +04:00
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int phyloc, int offloc, int flags)
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1998-08-11 03:55:16 +04:00
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{
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struct mii_attach_args ma;
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struct mii_softc *child;
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Change MII PHY read/write API from:
int (*mii_readreg_t)(device_t, int, int);
void (*mii_writereg_t)(device_t, int, int, int);
to:
int (*mii_readreg_t)(device_t, int, int, uint16_t *);
int (*mii_writereg_t)(device_t, int, int, uint16_t);
Now we can test if a read/write operation failed or not by the return value.
In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.
Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:
arm/at91/at91emac.c
arm/ep93xx/epe.c
arm/omap/omapl1x_emac.c
mips/ralink/ralink_eth.c
arch/powerpc/booke/dev/pq3etsec.c(read)
dev/cadence/if_cemac.c <- hkenken
dev/ic/lan9118.c
Tested with the following device:
axe+ukphy
axe+rgephy
axen+rgephy (tested by Andrius V)
wm+atphy
wm+ukphy
wm+igphy
wm+ihphy
wm+makphy
sk+makphy
sk+brgphy
sk+gentbi
msk+makphy
sip+icsphy
sip+ukphy
re+rgephy
bge+brgphy
bnx+brgphy
gsip+gphyter
rtk+rlphy
fxp+inphy (tested by Andrius V)
tlp+acphy
ex+exphy
epic+qsphy
vge+ciphy (tested by Andrius V)
vr+ukphy (tested by Andrius V)
vte+ukphy (tested by Andrius V)
Not tested (MAC):
arm:at91emac
arm:cemac
arm:epe
arm:geminigmac
arm:enet
arm:cpsw
arm:emac(omac)
arm:emac(sunxi)
arm:npe
evbppc:temac
macppc:bm
macppc:gm
mips:aumac
mips:ae
mips:cnmac
mips:reth
mips:sbmac
playstation2:smap
powerpc:tsec
powerpc:emac(ibm4xx)
sgimips:mec
sparc:be
sf
ne(ax88190, dl10019)
awge
ep
gem
hme
smsh
mtd
sm
age
alc
ale
bce
cas
et
jme
lii
nfe
pcn
ste
stge
tl
xi
aue
mue
smsc
udav
url
Not tested (PHY):
amhphy
bmtphy
dmphy
etphy
glxtphy
ikphy
iophy
lxtphy
nsphyter
pnaphy
rdcphy
sqphy
tlphy
tqphy
urlphy
2019-01-22 06:42:24 +03:00
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int offset = 0;
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uint16_t bmsr;
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1999-11-04 03:22:07 +03:00
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int phymin, phymax;
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2005-08-25 22:35:38 +04:00
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int locs[MIICF_NLOCS];
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Change MII PHY read/write API from:
int (*mii_readreg_t)(device_t, int, int);
void (*mii_writereg_t)(device_t, int, int, int);
to:
int (*mii_readreg_t)(device_t, int, int, uint16_t *);
int (*mii_writereg_t)(device_t, int, int, uint16_t);
Now we can test if a read/write operation failed or not by the return value.
In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.
Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:
arm/at91/at91emac.c
arm/ep93xx/epe.c
arm/omap/omapl1x_emac.c
mips/ralink/ralink_eth.c
arch/powerpc/booke/dev/pq3etsec.c(read)
dev/cadence/if_cemac.c <- hkenken
dev/ic/lan9118.c
Tested with the following device:
axe+ukphy
axe+rgephy
axen+rgephy (tested by Andrius V)
wm+atphy
wm+ukphy
wm+igphy
wm+ihphy
wm+makphy
sk+makphy
sk+brgphy
sk+gentbi
msk+makphy
sip+icsphy
sip+ukphy
re+rgephy
bge+brgphy
bnx+brgphy
gsip+gphyter
rtk+rlphy
fxp+inphy (tested by Andrius V)
tlp+acphy
ex+exphy
epic+qsphy
vge+ciphy (tested by Andrius V)
vr+ukphy (tested by Andrius V)
vte+ukphy (tested by Andrius V)
Not tested (MAC):
arm:at91emac
arm:cemac
arm:epe
arm:geminigmac
arm:enet
arm:cpsw
arm:emac(omac)
arm:emac(sunxi)
arm:npe
evbppc:temac
macppc:bm
macppc:gm
mips:aumac
mips:ae
mips:cnmac
mips:reth
mips:sbmac
playstation2:smap
powerpc:tsec
powerpc:emac(ibm4xx)
sgimips:mec
sparc:be
sf
ne(ax88190, dl10019)
awge
ep
gem
hme
smsh
mtd
sm
age
alc
ale
bce
cas
et
jme
lii
nfe
pcn
ste
stge
tl
xi
aue
mue
smsc
udav
url
Not tested (PHY):
amhphy
bmtphy
dmphy
etphy
glxtphy
ikphy
iophy
lxtphy
nsphyter
pnaphy
rdcphy
sqphy
tlphy
tqphy
urlphy
2019-01-22 06:42:24 +03:00
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int rv;
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1997-10-17 21:33:45 +04:00
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2020-03-16 02:04:50 +03:00
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KASSERT(mii->mii_media.ifm_lock != NULL);
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2004-08-20 19:21:24 +04:00
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if (phyloc != MII_PHY_ANY && offloc != MII_OFFSET_ANY)
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2000-02-02 11:05:26 +03:00
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panic("mii_attach: phyloc and offloc specified");
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1997-10-17 21:33:45 +04:00
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1999-11-04 03:22:07 +03:00
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if (phyloc == MII_PHY_ANY) {
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phymin = 0;
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phymax = MII_NPHY - 1;
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} else
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phymin = phymax = phyloc;
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2020-03-16 02:04:50 +03:00
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mii_lock(mii);
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1999-11-04 03:22:07 +03:00
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if ((mii->mii_flags & MIIF_INITDONE) == 0) {
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LIST_INIT(&mii->mii_phys);
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2020-03-16 02:04:50 +03:00
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cv_init(&mii->mii_probe_cv, "mii_attach");
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1999-11-04 03:22:07 +03:00
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mii->mii_flags |= MIIF_INITDONE;
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}
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2020-03-16 02:04:50 +03:00
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/*
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* Probing temporarily unlocks the MII; wait until anyone
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* else who might be doing this to finish.
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*/
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mii->mii_probe_waiters++;
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for (;;) {
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if (mii->mii_flags & MIIF_EXITING) {
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mii->mii_probe_waiters--;
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cv_signal(&mii->mii_probe_cv);
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mii_unlock(mii);
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return;
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}
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if ((mii->mii_flags & MIIF_PROBING) == 0)
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break;
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cv_wait(&mii->mii_probe_cv, mii->mii_media.ifm_lock);
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}
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mii->mii_probe_waiters--;
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/* ...and old others off. */
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mii->mii_flags |= MIIF_PROBING;
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1999-11-04 03:22:07 +03:00
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for (ma.mii_phyno = phymin; ma.mii_phyno <= phymax; ma.mii_phyno++) {
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1999-09-25 04:10:13 +04:00
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/*
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* Make sure we haven't already configured a PHY at this
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2000-02-02 11:05:26 +03:00
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* address. This allows mii_attach() to be called
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1999-09-25 04:10:13 +04:00
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* multiple times.
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*/
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2007-12-29 11:19:35 +03:00
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LIST_FOREACH(child, &mii->mii_phys, mii_list) {
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1999-09-25 04:10:13 +04:00
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if (child->mii_phy == ma.mii_phyno) {
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/*
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* Yes, there is already something
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* configured at this address.
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*/
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offset++;
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1999-10-27 23:05:44 +04:00
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continue;
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1999-09-25 04:10:13 +04:00
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}
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}
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1998-08-11 03:55:16 +04:00
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/*
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1999-02-05 05:46:34 +03:00
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* Check to see if there is a PHY at this address. Note,
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* many braindead PHYs report 0/0 in their ID registers,
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* so we test for media in the BMSR.
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*/
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Change MII PHY read/write API from:
int (*mii_readreg_t)(device_t, int, int);
void (*mii_writereg_t)(device_t, int, int, int);
to:
int (*mii_readreg_t)(device_t, int, int, uint16_t *);
int (*mii_writereg_t)(device_t, int, int, uint16_t);
Now we can test if a read/write operation failed or not by the return value.
In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.
Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:
arm/at91/at91emac.c
arm/ep93xx/epe.c
arm/omap/omapl1x_emac.c
mips/ralink/ralink_eth.c
arch/powerpc/booke/dev/pq3etsec.c(read)
dev/cadence/if_cemac.c <- hkenken
dev/ic/lan9118.c
Tested with the following device:
axe+ukphy
axe+rgephy
axen+rgephy (tested by Andrius V)
wm+atphy
wm+ukphy
wm+igphy
wm+ihphy
wm+makphy
sk+makphy
sk+brgphy
sk+gentbi
msk+makphy
sip+icsphy
sip+ukphy
re+rgephy
bge+brgphy
bnx+brgphy
gsip+gphyter
rtk+rlphy
fxp+inphy (tested by Andrius V)
tlp+acphy
ex+exphy
epic+qsphy
vge+ciphy (tested by Andrius V)
vr+ukphy (tested by Andrius V)
vte+ukphy (tested by Andrius V)
Not tested (MAC):
arm:at91emac
arm:cemac
arm:epe
arm:geminigmac
arm:enet
arm:cpsw
arm:emac(omac)
arm:emac(sunxi)
arm:npe
evbppc:temac
macppc:bm
macppc:gm
mips:aumac
mips:ae
mips:cnmac
mips:reth
mips:sbmac
playstation2:smap
powerpc:tsec
powerpc:emac(ibm4xx)
sgimips:mec
sparc:be
sf
ne(ax88190, dl10019)
awge
ep
gem
hme
smsh
mtd
sm
age
alc
ale
bce
cas
et
jme
lii
nfe
pcn
ste
stge
tl
xi
aue
mue
smsc
udav
url
Not tested (PHY):
amhphy
bmtphy
dmphy
etphy
glxtphy
ikphy
iophy
lxtphy
nsphyter
pnaphy
rdcphy
sqphy
tlphy
tqphy
urlphy
2019-01-22 06:42:24 +03:00
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bmsr = 0;
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rv = (*mii->mii_readreg)(parent, ma.mii_phyno, MII_BMSR,
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&bmsr);
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if ((rv != 0) || bmsr == 0 || bmsr == 0xffff ||
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2019-03-25 12:20:46 +03:00
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(bmsr & (BMSR_EXTSTAT | BMSR_MEDIAMASK)) == 0) {
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1999-02-05 05:46:34 +03:00
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/* Assume no PHY at this address. */
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continue;
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}
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|
1999-11-04 03:22:07 +03:00
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/*
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* There is a PHY at this address. If we were given an
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* `offset' locator, skip this PHY if it doesn't match.
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*/
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if (offloc != MII_OFFSET_ANY && offloc != offset) {
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offset++;
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continue;
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}
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1999-02-05 05:46:34 +03:00
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/*
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* Extract the IDs. Braindead PHYs will be handled by
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* the `ukphy' driver, as we have no ID information to
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* match on.
|
1998-08-11 03:55:16 +04:00
|
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*/
|
Change MII PHY read/write API from:
int (*mii_readreg_t)(device_t, int, int);
void (*mii_writereg_t)(device_t, int, int, int);
to:
int (*mii_readreg_t)(device_t, int, int, uint16_t *);
int (*mii_writereg_t)(device_t, int, int, uint16_t);
Now we can test if a read/write operation failed or not by the return value.
In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.
Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:
arm/at91/at91emac.c
arm/ep93xx/epe.c
arm/omap/omapl1x_emac.c
mips/ralink/ralink_eth.c
arch/powerpc/booke/dev/pq3etsec.c(read)
dev/cadence/if_cemac.c <- hkenken
dev/ic/lan9118.c
Tested with the following device:
axe+ukphy
axe+rgephy
axen+rgephy (tested by Andrius V)
wm+atphy
wm+ukphy
wm+igphy
wm+ihphy
wm+makphy
sk+makphy
sk+brgphy
sk+gentbi
msk+makphy
sip+icsphy
sip+ukphy
re+rgephy
bge+brgphy
bnx+brgphy
gsip+gphyter
rtk+rlphy
fxp+inphy (tested by Andrius V)
tlp+acphy
ex+exphy
epic+qsphy
vge+ciphy (tested by Andrius V)
vr+ukphy (tested by Andrius V)
vte+ukphy (tested by Andrius V)
Not tested (MAC):
arm:at91emac
arm:cemac
arm:epe
arm:geminigmac
arm:enet
arm:cpsw
arm:emac(omac)
arm:emac(sunxi)
arm:npe
evbppc:temac
macppc:bm
macppc:gm
mips:aumac
mips:ae
mips:cnmac
mips:reth
mips:sbmac
playstation2:smap
powerpc:tsec
powerpc:emac(ibm4xx)
sgimips:mec
sparc:be
sf
ne(ax88190, dl10019)
awge
ep
gem
hme
smsh
mtd
sm
age
alc
ale
bce
cas
et
jme
lii
nfe
pcn
ste
stge
tl
xi
aue
mue
smsc
udav
url
Not tested (PHY):
amhphy
bmtphy
dmphy
etphy
glxtphy
ikphy
iophy
lxtphy
nsphyter
pnaphy
rdcphy
sqphy
tlphy
tqphy
urlphy
2019-01-22 06:42:24 +03:00
|
|
|
ma.mii_id1 = ma.mii_id2 = 0;
|
|
|
|
rv = (*mii->mii_readreg)(parent, ma.mii_phyno,
|
|
|
|
MII_PHYIDR1, &ma.mii_id1);
|
|
|
|
rv |= (*mii->mii_readreg)(parent, ma.mii_phyno,
|
|
|
|
MII_PHYIDR2, &ma.mii_id2);
|
|
|
|
if (rv != 0)
|
|
|
|
continue;
|
1997-10-17 21:33:45 +04:00
|
|
|
|
1998-08-11 03:55:16 +04:00
|
|
|
ma.mii_data = mii;
|
|
|
|
ma.mii_capmask = capmask;
|
2002-03-25 23:51:24 +03:00
|
|
|
ma.mii_flags = flags | (mii->mii_flags & MIIF_INHERIT_MASK);
|
1997-10-17 21:33:45 +04:00
|
|
|
|
2005-08-25 22:35:38 +04:00
|
|
|
locs[MIICF_PHY] = ma.mii_phyno;
|
2004-09-13 16:55:47 +04:00
|
|
|
|
2020-03-16 02:04:50 +03:00
|
|
|
mii_unlock(mii);
|
|
|
|
|
Merge thorpej-cfargs branch:
Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.
Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)
Remove unnecessary or redundant interface attributes where they're not
needed.
There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)
...and a sentinel value CFARG_EOL.
Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.
Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).
2021-04-25 02:36:23 +03:00
|
|
|
child = device_private(
|
|
|
|
config_found(parent, &ma, mii_print,
|
2021-08-07 19:18:40 +03:00
|
|
|
CFARGS(.submatch = config_stdsubmatch,
|
|
|
|
.iattr = "mii",
|
|
|
|
.locators = locs)));
|
2004-09-13 16:55:47 +04:00
|
|
|
if (child) {
|
2019-03-25 12:20:46 +03:00
|
|
|
/* Link it up in the parent's MII data. */
|
2022-08-14 23:34:26 +03:00
|
|
|
if (child->mii_flags & MIIF_AUTOTSLEEP)
|
|
|
|
cv_init(&child->mii_nway_cv, "miiauto");
|
|
|
|
else
|
|
|
|
callout_init(&child->mii_nway_ch, 0);
|
2020-03-16 02:04:50 +03:00
|
|
|
mii_lock(mii);
|
1998-08-11 03:55:16 +04:00
|
|
|
LIST_INSERT_HEAD(&mii->mii_phys, child, mii_list);
|
1999-09-25 04:10:13 +04:00
|
|
|
child->mii_offset = offset;
|
1998-08-11 03:55:16 +04:00
|
|
|
mii->mii_instance++;
|
2020-03-16 02:04:50 +03:00
|
|
|
} else {
|
|
|
|
mii_lock(mii);
|
1998-08-11 03:55:16 +04:00
|
|
|
}
|
1999-09-25 04:10:13 +04:00
|
|
|
offset++;
|
1998-08-11 03:55:16 +04:00
|
|
|
}
|
2020-03-16 02:04:50 +03:00
|
|
|
|
|
|
|
/* All done! */
|
|
|
|
mii->mii_flags &= ~MIIF_PROBING;
|
|
|
|
cv_signal(&mii->mii_probe_cv);
|
|
|
|
mii_unlock(mii);
|
1998-02-11 22:02:11 +03:00
|
|
|
}
|
|
|
|
|
2000-01-27 19:44:30 +03:00
|
|
|
void
|
2001-08-25 22:04:01 +04:00
|
|
|
mii_detach(struct mii_data *mii, int phyloc, int offloc)
|
2000-01-27 19:44:30 +03:00
|
|
|
{
|
|
|
|
struct mii_softc *child, *nchild;
|
2020-03-16 02:04:50 +03:00
|
|
|
bool exiting = false;
|
2000-01-27 19:44:30 +03:00
|
|
|
|
|
|
|
if (phyloc != MII_PHY_ANY && offloc != MII_PHY_ANY)
|
2000-02-02 11:05:26 +03:00
|
|
|
panic("mii_detach: phyloc and offloc specified");
|
2000-01-27 19:44:30 +03:00
|
|
|
|
2020-03-16 02:04:50 +03:00
|
|
|
mii_lock(mii);
|
|
|
|
|
|
|
|
if ((mii->mii_flags & MIIF_INITDONE) == 0 ||
|
|
|
|
(mii->mii_flags & MIIF_EXITING) != 0) {
|
|
|
|
mii_unlock(mii);
|
2000-01-27 19:44:30 +03:00
|
|
|
return;
|
2020-03-16 02:04:50 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX This is probably not the best hueristic. Consider
|
|
|
|
* XXX adding an argument to mii_detach().
|
|
|
|
*/
|
|
|
|
if (phyloc == MII_PHY_ANY && MII_PHY_ANY == MII_OFFSET_ANY)
|
|
|
|
exiting = true;
|
|
|
|
|
|
|
|
if (exiting) {
|
|
|
|
mii->mii_flags |= MIIF_EXITING;
|
|
|
|
cv_broadcast(&mii->mii_probe_cv);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Wait for everyone else to get out. */
|
|
|
|
mii->mii_probe_waiters++;
|
|
|
|
for (;;) {
|
|
|
|
/*
|
|
|
|
* If we've been waiting to do a less-than-exit, and
|
|
|
|
* *someone else* initiated an exit, then get out.
|
|
|
|
*/
|
|
|
|
if (!exiting && (mii->mii_flags & MIIF_EXITING) != 0) {
|
|
|
|
mii->mii_probe_waiters--;
|
|
|
|
cv_signal(&mii->mii_probe_cv);
|
|
|
|
mii_unlock(mii);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if ((mii->mii_flags & MIIF_PROBING) == 0 &&
|
|
|
|
(!exiting || (exiting && mii->mii_probe_waiters == 1)))
|
|
|
|
break;
|
|
|
|
cv_wait(&mii->mii_probe_cv, mii->mii_media.ifm_lock);
|
|
|
|
}
|
|
|
|
mii->mii_probe_waiters--;
|
|
|
|
|
|
|
|
if (!exiting)
|
|
|
|
mii->mii_flags |= MIIF_PROBING;
|
2000-01-27 19:44:30 +03:00
|
|
|
|
2020-03-16 02:04:50 +03:00
|
|
|
LIST_FOREACH_SAFE(child, &mii->mii_phys, mii_list, nchild) {
|
2000-01-27 19:44:30 +03:00
|
|
|
if (phyloc != MII_PHY_ANY || offloc != MII_OFFSET_ANY) {
|
|
|
|
if (phyloc != MII_PHY_ANY &&
|
|
|
|
phyloc != child->mii_phy)
|
|
|
|
continue;
|
|
|
|
if (offloc != MII_OFFSET_ANY &&
|
|
|
|
offloc != child->mii_offset)
|
|
|
|
continue;
|
|
|
|
}
|
2020-03-16 02:04:50 +03:00
|
|
|
LIST_REMOVE(child, mii_list);
|
|
|
|
mii_unlock(mii);
|
2008-05-04 21:06:09 +04:00
|
|
|
(void)config_detach(child->mii_dev, DETACH_FORCE);
|
2020-03-16 02:04:50 +03:00
|
|
|
mii_lock(mii);
|
2000-01-27 19:44:30 +03:00
|
|
|
}
|
2020-03-16 02:04:50 +03:00
|
|
|
|
|
|
|
if (exiting) {
|
|
|
|
cv_destroy(&mii->mii_probe_cv);
|
|
|
|
} else {
|
|
|
|
mii->mii_flags &= ~MIIF_PROBING;
|
|
|
|
cv_signal(&mii->mii_probe_cv);
|
|
|
|
}
|
|
|
|
|
|
|
|
mii_unlock(mii);
|
2000-01-27 19:44:30 +03:00
|
|
|
}
|
|
|
|
|
2004-08-23 10:16:06 +04:00
|
|
|
static int
|
2001-08-25 22:04:01 +04:00
|
|
|
mii_print(void *aux, const char *pnp)
|
1997-10-17 21:33:45 +04:00
|
|
|
{
|
1998-08-11 03:55:16 +04:00
|
|
|
struct mii_attach_args *ma = aux;
|
1997-11-17 11:52:38 +03:00
|
|
|
|
1998-08-11 03:55:16 +04:00
|
|
|
if (pnp != NULL)
|
2003-01-01 03:10:15 +03:00
|
|
|
aprint_normal("OUI 0x%06x model 0x%04x rev %d at %s",
|
1998-08-11 03:55:16 +04:00
|
|
|
MII_OUI(ma->mii_id1, ma->mii_id2), MII_MODEL(ma->mii_id2),
|
|
|
|
MII_REV(ma->mii_id2), pnp);
|
1997-10-17 21:33:45 +04:00
|
|
|
|
2003-01-01 03:10:15 +03:00
|
|
|
aprint_normal(" phy %d", ma->mii_phyno);
|
2019-03-25 12:20:46 +03:00
|
|
|
return UNCONF;
|
1997-10-17 21:33:45 +04:00
|
|
|
}
|
|
|
|
|
2007-12-29 22:34:55 +03:00
|
|
|
static inline int
|
|
|
|
phy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
|
|
|
|
{
|
2019-03-25 12:20:46 +03:00
|
|
|
|
2008-05-04 21:06:09 +04:00
|
|
|
if (!device_is_active(sc->mii_dev))
|
2007-12-29 22:34:55 +03:00
|
|
|
return ENXIO;
|
|
|
|
return PHY_SERVICE(sc, mii, cmd);
|
|
|
|
}
|
|
|
|
|
2008-01-10 10:29:41 +03:00
|
|
|
int
|
|
|
|
mii_ifmedia_change(struct mii_data *mii)
|
|
|
|
{
|
2020-03-16 02:04:50 +03:00
|
|
|
|
|
|
|
KASSERT(mii_locked(mii) ||
|
|
|
|
ifmedia_islegacy(&mii->mii_media));
|
2008-01-10 10:29:41 +03:00
|
|
|
return ifmedia_change(&mii->mii_media, mii->mii_ifp);
|
|
|
|
}
|
|
|
|
|
1998-08-11 03:55:16 +04:00
|
|
|
/*
|
|
|
|
* Media changed; notify all PHYs.
|
|
|
|
*/
|
1997-11-17 11:52:38 +03:00
|
|
|
int
|
2001-08-25 22:04:01 +04:00
|
|
|
mii_mediachg(struct mii_data *mii)
|
1997-10-17 21:33:45 +04:00
|
|
|
{
|
1998-08-11 03:55:16 +04:00
|
|
|
struct mii_softc *child;
|
2020-03-16 02:04:50 +03:00
|
|
|
int rv = 0;
|
|
|
|
|
|
|
|
IFMEDIA_LOCK_FOR_LEGACY(&mii->mii_media);
|
|
|
|
KASSERT(mii_locked(mii));
|
1997-10-17 21:33:45 +04:00
|
|
|
|
1998-08-11 03:55:16 +04:00
|
|
|
mii->mii_media_status = 0;
|
|
|
|
mii->mii_media_active = IFM_NONE;
|
1997-10-17 21:33:45 +04:00
|
|
|
|
2007-12-29 11:19:35 +03:00
|
|
|
LIST_FOREACH(child, &mii->mii_phys, mii_list) {
|
2007-12-29 22:34:55 +03:00
|
|
|
rv = phy_service(child, mii, MII_MEDIACHG);
|
1998-08-11 03:55:16 +04:00
|
|
|
if (rv)
|
2020-03-16 02:04:50 +03:00
|
|
|
break;
|
1997-10-17 21:33:45 +04:00
|
|
|
}
|
2020-03-16 02:04:50 +03:00
|
|
|
IFMEDIA_UNLOCK_FOR_LEGACY(&mii->mii_media);
|
|
|
|
return rv;
|
1997-10-17 21:33:45 +04:00
|
|
|
}
|
|
|
|
|
1998-08-11 03:55:16 +04:00
|
|
|
/*
|
|
|
|
* Call the PHY tick routines, used during autonegotiation.
|
|
|
|
*/
|
1997-11-17 11:52:38 +03:00
|
|
|
void
|
2001-08-25 22:04:01 +04:00
|
|
|
mii_tick(struct mii_data *mii)
|
1997-10-17 21:33:45 +04:00
|
|
|
{
|
1998-08-11 03:55:16 +04:00
|
|
|
struct mii_softc *child;
|
1997-10-17 21:33:45 +04:00
|
|
|
|
2020-03-16 02:04:50 +03:00
|
|
|
IFMEDIA_LOCK_FOR_LEGACY(&mii->mii_media);
|
|
|
|
KASSERT(mii_locked(mii));
|
|
|
|
|
2007-12-29 11:19:35 +03:00
|
|
|
LIST_FOREACH(child, &mii->mii_phys, mii_list)
|
2007-12-29 22:34:55 +03:00
|
|
|
(void)phy_service(child, mii, MII_TICK);
|
2020-03-16 02:04:50 +03:00
|
|
|
|
|
|
|
IFMEDIA_UNLOCK_FOR_LEGACY(&mii->mii_media);
|
1997-10-17 21:33:45 +04:00
|
|
|
}
|
|
|
|
|
1998-08-11 03:55:16 +04:00
|
|
|
/*
|
|
|
|
* Get media status from PHYs.
|
|
|
|
*/
|
1997-11-17 11:52:38 +03:00
|
|
|
void
|
2001-08-25 22:04:01 +04:00
|
|
|
mii_pollstat(struct mii_data *mii)
|
1997-10-17 21:33:45 +04:00
|
|
|
{
|
1998-08-11 03:55:16 +04:00
|
|
|
struct mii_softc *child;
|
1997-10-17 21:33:45 +04:00
|
|
|
|
2020-03-16 02:04:50 +03:00
|
|
|
IFMEDIA_LOCK_FOR_LEGACY(&mii->mii_media);
|
|
|
|
KASSERT(mii_locked(mii));
|
|
|
|
|
1998-08-11 03:55:16 +04:00
|
|
|
mii->mii_media_status = 0;
|
|
|
|
mii->mii_media_active = IFM_NONE;
|
|
|
|
|
2007-12-29 11:19:35 +03:00
|
|
|
LIST_FOREACH(child, &mii->mii_phys, mii_list)
|
2007-12-29 22:34:55 +03:00
|
|
|
(void)phy_service(child, mii, MII_POLLSTAT);
|
2020-03-16 02:04:50 +03:00
|
|
|
|
|
|
|
IFMEDIA_UNLOCK_FOR_LEGACY(&mii->mii_media);
|
1997-10-17 21:33:45 +04:00
|
|
|
}
|
1999-11-12 21:12:59 +03:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Inform the PHYs that the interface is down.
|
|
|
|
*/
|
|
|
|
void
|
2001-08-25 22:04:01 +04:00
|
|
|
mii_down(struct mii_data *mii)
|
1999-11-12 21:12:59 +03:00
|
|
|
{
|
|
|
|
struct mii_softc *child;
|
|
|
|
|
2020-03-16 02:04:50 +03:00
|
|
|
IFMEDIA_LOCK_FOR_LEGACY(&mii->mii_media);
|
|
|
|
KASSERT(mii_locked(mii));
|
|
|
|
|
2007-12-29 11:19:35 +03:00
|
|
|
LIST_FOREACH(child, &mii->mii_phys, mii_list)
|
2007-12-29 22:34:55 +03:00
|
|
|
(void)phy_service(child, mii, MII_DOWN);
|
2020-03-16 02:04:50 +03:00
|
|
|
|
|
|
|
IFMEDIA_UNLOCK_FOR_LEGACY(&mii->mii_media);
|
1999-11-12 21:12:59 +03:00
|
|
|
}
|
2001-03-28 18:13:06 +04:00
|
|
|
|
|
|
|
static unsigned char
|
|
|
|
bitreverse(unsigned char x)
|
|
|
|
{
|
2015-06-11 08:22:55 +03:00
|
|
|
static const unsigned char nibbletab[16] = {
|
2001-03-28 18:13:06 +04:00
|
|
|
0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15
|
|
|
|
};
|
|
|
|
|
|
|
|
return ((nibbletab[x & 15] << 4) | nibbletab[x >> 4]);
|
|
|
|
}
|
|
|
|
|
2002-11-07 10:41:22 +03:00
|
|
|
u_int
|
2019-04-09 14:28:45 +03:00
|
|
|
mii_oui(uint16_t id1, uint16_t id2)
|
2001-03-28 18:13:06 +04:00
|
|
|
{
|
2002-11-07 10:41:22 +03:00
|
|
|
u_int h;
|
2001-03-28 18:13:06 +04:00
|
|
|
|
|
|
|
h = (id1 << 6) | (id2 >> 10);
|
|
|
|
|
|
|
|
return ((bitreverse(h >> 16) << 16) |
|
|
|
|
(bitreverse((h >> 8) & 255) << 8) |
|
|
|
|
bitreverse(h & 255));
|
|
|
|
}
|