pfisher at imaginationhouse
Oct 21, 2003, 6:48 AM
Post #5 of 10
(180 views)
Permalink
|
> From: Keir Fraser [mailto:Keir.Fraser [at] cl]
> Sent: Tuesday, October 21, 2003 7:08 AM
>
> Yeah, none of the drivers we've ported so far rely on teh common mii
> code. It should be easy to add in though.
Thanks.
How do you want outside patches? I've managed to figure out how to get
bitkeeper to generate a changeset for adding these, which is below. Is this
how you want them? Show they be sent to this list?
thanks,
paul
This BitKeeper patch contains the following changesets:
pfisher [at] xen|ChangeSet|20031020214558|21571
# ID:
smh22 [at] boulderdash|ChangeSet|20021120105923|56899|1ee6296af7e15a
82
# User: pfisher
# Host: xen.imaginationhouse.com
# Root: /home/pfisher/xen/xeno-unstable.bk
# Patch vers: 1.3
# Patch type: REGULAR
== ChangeSet ==
smh22 [at] boulderdash|ChangeSet|20021120105923|56899|1ee6296af7e15a
82
kaf24 [at] scramble|ChangeSet|20031017092137|05270
D 1.528 03/10/20 16:45:58-05:00 pfisher [at] xen +3 -0
B
smh22 [at] boulderdash|ChangeSet|20021120105923|56899|1ee6296af7e15a
82
C
c Enable the mii_xxx functions and add their implementation from the
c standard linux sources. These are used by several of the network
c drivers to provide generic mii processing.
K 21571
P ChangeSet
------------------------------------------------
0a0
>
pfisher [at] xen|xen/drivers/net/mii.c|20031020214552|04582|
732fcd56bab80215
pfisher [at] xen|xen/drivers/net/mii.c|20031020214553|16665
>
smh22 [at] boulderdash|xen-2.4.16/include/xeno/mii.h|20021120120209|
27029|2c4ed9538370864d
pfisher [at] xen|xen/include/xeno/mii.h|20031020214552|27076
>
smh22 [at] boulderdash|BitKeeper/etc/logging_ok|20021120120217|03192
|1a0e4366ffd1b425
pfisher [at] xen|BitKeeper/etc/logging_ok|20031020214558|157
81
== xen/drivers/net/mii.c ==
New file: xen/drivers/net/mii.c
f e 4
V 4
pfisher [at] xen|xen/drivers/net/mii.c|20031020214552|04582|
732fcd56bab80215
D 1.0 03/10/20 16:45:52-05:00 pfisher [at] xen +0 -0
B
smh22 [at] boulderdash|ChangeSet|20021120105923|56899|1ee6296af7e15a
82
c BitKeeper file /home/pfisher/xen/xeno-unstable.bk/xen/drivers/net/mii.c
K 4582
P xen/drivers/net/mii.c
R 732fcd56bab80215
X 0x821
------------------------------------------------
pfisher [at] xen|xen/drivers/net/mii.c|20031020214552|04582|
732fcd56bab80215
D 1.1 03/10/20 16:45:52-05:00 pfisher [at] xen +353 -0
B
smh22 [at] boulderdash|ChangeSet|20021120105923|56899|1ee6296af7e15a
82
C
F 1
K 16665
O -rw-rw-r--
P xen/drivers/net/mii.c
------------------------------------------------
I0 353
/*
\
mii.c: MII interface library
\
Maintained by Jeff Garzik <jgarzik [at] pobox>
Copyright 2001,2002 Jeff Garzik
\
Various code came from myson803.c and other files by
Donald Becker. Copyright:
\
Written 1998-2002 by Donald Becker.
\
This software may be used and distributed according
to the terms of the GNU General Public License (GPL),
incorporated herein by reference. Drivers based on
or derived from this code fall under the GPL and must
retain the authorship, copyright and license notice.
This file is not a complete program and may only be
used when the entire operating system is licensed
under the GPL.
\
The author may be reached as becker [at] scyld, or C/O
Scyld Computing Corporation
410 Severn Ave., Suite 210
Annapolis MD 21403
\
\
*/
\
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
\
int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
{
struct net_device *dev = mii->dev;
u32 advert, bmcr, lpa, nego;
\
ecmd->supported =
(SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII);
\
/* only supports twisted-pair */
ecmd->port = PORT_MII;
\
/* only supports internal transceiver */
ecmd->transceiver = XCVR_INTERNAL;
\
/* this isn't fully supported at higher layers */
ecmd->phy_address = mii->phy_id;
\
ecmd->advertising = ADVERTISED_TP | ADVERTISED_MII;
advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE);
if (advert & ADVERTISE_10HALF)
ecmd->advertising |= ADVERTISED_10baseT_Half;
if (advert & ADVERTISE_10FULL)
ecmd->advertising |= ADVERTISED_10baseT_Full;
if (advert & ADVERTISE_100HALF)
ecmd->advertising |= ADVERTISED_100baseT_Half;
if (advert & ADVERTISE_100FULL)
ecmd->advertising |= ADVERTISED_100baseT_Full;
\
bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
lpa = mii->mdio_read(dev, mii->phy_id, MII_LPA);
if (bmcr & BMCR_ANENABLE) {
ecmd->advertising |= ADVERTISED_Autoneg;
ecmd->autoneg = AUTONEG_ENABLE;
nego = mii_nway_result(advert & lpa);
if (nego == LPA_100FULL || nego == LPA_100HALF)
ecmd->speed = SPEED_100;
else
ecmd->speed = SPEED_10;
if (nego == LPA_100FULL || nego == LPA_10FULL) {
ecmd->duplex = DUPLEX_FULL;
mii->full_duplex = 1;
} else {
ecmd->duplex = DUPLEX_HALF;
mii->full_duplex = 0;
}
} else {
ecmd->autoneg = AUTONEG_DISABLE;
\
ecmd->speed = (bmcr & BMCR_SPEED100) ? SPEED_100 : SPEED_10;
ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
}
\
/* ignore maxtxpkt, maxrxpkt for now */
\
return 0;
}
\
int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
{
struct net_device *dev = mii->dev;
\
if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
return -EINVAL;
if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
return -EINVAL;
if (ecmd->port != PORT_MII)
return -EINVAL;
if (ecmd->transceiver != XCVR_INTERNAL)
return -EINVAL;
if (ecmd->phy_address != mii->phy_id)
return -EINVAL;
if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
return -EINVAL;
/* ignore supported, maxtxpkt, maxrxpkt */
if (ecmd->autoneg == AUTONEG_ENABLE) {
u32 bmcr, advert, tmp;
\
if ((ecmd->advertising & (ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full)) == 0)
return -EINVAL;
\
/* advertise only what has been requested */
advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE);
tmp = advert & ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
if (ecmd->advertising & ADVERTISED_10baseT_Half)
tmp |= ADVERTISE_10HALF;
if (ecmd->advertising & ADVERTISED_10baseT_Full)
tmp |= ADVERTISE_10FULL;
if (ecmd->advertising & ADVERTISED_100baseT_Half)
tmp |= ADVERTISE_100HALF;
if (ecmd->advertising & ADVERTISED_100baseT_Full)
tmp |= ADVERTISE_100FULL;
if (advert != tmp) {
mii->mdio_write(dev, mii->phy_id, MII_ADVERTISE, tmp);
mii->advertising = tmp;
}
/* turn on autonegotiation, and force a renegotiate */
bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
mii->mdio_write(dev, mii->phy_id, MII_BMCR, bmcr);
\
mii->force_media = 0;
} else {
u32 bmcr, tmp;
\
/* turn off auto negotiation, set speed and duplexity */
bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | BMCR_FULLDPLX);
if (ecmd->speed == SPEED_100)
tmp |= BMCR_SPEED100;
if (ecmd->duplex == DUPLEX_FULL) {
tmp |= BMCR_FULLDPLX;
mii->full_duplex = 1;
} else
mii->full_duplex = 0;
if (bmcr != tmp)
mii->mdio_write(dev, mii->phy_id, MII_BMCR, tmp);
\
mii->force_media = 1;
}
return 0;
}
\
int mii_link_ok (struct mii_if_info *mii)
{
/* first, a dummy read, needed to latch some MII phys */
mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR);
if (mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR) & BMSR_LSTATUS)
return 1;
return 0;
}
\
int mii_nway_restart (struct mii_if_info *mii)
{
int bmcr;
int r = -EINVAL;
\
/* if autoneg is off, it's an error */
bmcr = mii->mdio_read(mii->dev, mii->phy_id, MII_BMCR);
\
if (bmcr & BMCR_ANENABLE) {
bmcr |= BMCR_ANRESTART;
mii->mdio_write(mii->dev, mii->phy_id, MII_BMCR, bmcr);
r = 0;
}
\
return r;
}
\
void mii_check_link (struct mii_if_info *mii)
{
int cur_link = mii_link_ok(mii);
int prev_link = netif_carrier_ok(mii->dev);
\
if (cur_link && !prev_link)
netif_carrier_on(mii->dev);
else if (prev_link && !cur_link)
netif_carrier_off(mii->dev);
}
\
unsigned int mii_check_media (struct mii_if_info *mii,
unsigned int ok_to_print,
unsigned int init_media)
{
unsigned int old_carrier, new_carrier;
int advertise, lpa, media, duplex;
\
/* if forced media, go no further */
if (mii->force_media)
return 0; /* duplex did not change */
\
/* check current and old link status */
old_carrier = netif_carrier_ok(mii->dev) ? 1 : 0;
new_carrier = (unsigned int) mii_link_ok(mii);
\
/* if carrier state did not change, this is a "bounce",
* just exit as everything is already set correctly
*/
if ((!init_media) && (old_carrier == new_carrier))
return 0; /* duplex did not change */
\
/* no carrier, nothing much to do */
if (!new_carrier) {
netif_carrier_off(mii->dev);
if (ok_to_print)
printk(KERN_INFO "%s: link down\n", mii->dev->name);
return 0; /* duplex did not change */
}
\
/*
* we have carrier, see who's on the other end
*/
netif_carrier_on(mii->dev);
\
/* get MII advertise and LPA values */
if ((!init_media) && (mii->advertising))
advertise = mii->advertising;
else {
advertise = mii->mdio_read(mii->dev, mii->phy_id, MII_ADVERTISE);
mii->advertising = advertise;
}
lpa = mii->mdio_read(mii->dev, mii->phy_id, MII_LPA);
\
/* figure out media and duplex from advertise and LPA values */
media = mii_nway_result(lpa & advertise);
duplex = (media & ADVERTISE_FULL) ? 1 : 0;
\
if (ok_to_print)
printk(KERN_INFO "%s: link up, %sMbps, %s-duplex, lpa 0x%04X\n",
mii->dev->name,
media & (ADVERTISE_100FULL | ADVERTISE_100HALF) ?
"100" : "10",
duplex ? "full" : "half",
lpa);
\
if ((init_media) || (mii->full_duplex != duplex)) {
mii->full_duplex = duplex;
return 1; /* duplex changed */
}
\
return 0; /* duplex did not change */
}
\
int generic_mii_ioctl(struct mii_if_info *mii_if,
struct mii_ioctl_data *mii_data, int cmd,
unsigned int *duplex_chg_out)
{
int rc = 0;
unsigned int duplex_changed = 0;
\
if (duplex_chg_out)
*duplex_chg_out = 0;
\
mii_data->phy_id &= mii_if->phy_id_mask;
mii_data->reg_num &= mii_if->reg_num_mask;
\
switch(cmd) {
case SIOCDEVPRIVATE: /* binary compat, remove in 2.5 */
case SIOCGMIIPHY:
mii_data->phy_id = mii_if->phy_id;
/* fall through */
\
case SIOCDEVPRIVATE + 1:/* binary compat, remove in 2.5 */
case SIOCGMIIREG:
mii_data->val_out =
mii_if->mdio_read(mii_if->dev, mii_data->phy_id,
mii_data->reg_num);
break;
\
case SIOCDEVPRIVATE + 2:/* binary compat, remove in 2.5 */
case SIOCSMIIREG: {
u16 val = mii_data->val_in;
\
if (!capable(CAP_NET_ADMIN))
return -EPERM;
\
if (mii_data->phy_id == mii_if->phy_id) {
switch(mii_data->reg_num) {
case MII_BMCR: {
unsigned int new_duplex = 0;
if (val & (BMCR_RESET|BMCR_ANENABLE))
mii_if->force_media = 0;
else
mii_if->force_media = 1;
if (mii_if->force_media &&
(val & BMCR_FULLDPLX))
new_duplex = 1;
if (mii_if->full_duplex != new_duplex) {
duplex_changed = 1;
mii_if->full_duplex = new_duplex;
}
break;
}
case MII_ADVERTISE:
mii_if->advertising = val;
break;
default:
/* do nothing */
break;
}
}
\
mii_if->mdio_write(mii_if->dev, mii_data->phy_id,
mii_data->reg_num, val);
break;
}
\
default:
rc = -EOPNOTSUPP;
break;
}
\
if ((rc == 0) && (duplex_chg_out) && (duplex_changed))
*duplex_chg_out = 1;
\
return rc;
}
\
MODULE_AUTHOR ("Jeff Garzik <jgarzik [at] pobox>");
MODULE_DESCRIPTION ("MII hardware support library");
MODULE_LICENSE("GPL");
\
EXPORT_SYMBOL(mii_link_ok);
EXPORT_SYMBOL(mii_nway_restart);
EXPORT_SYMBOL(mii_ethtool_gset);
EXPORT_SYMBOL(mii_ethtool_sset);
EXPORT_SYMBOL(mii_check_link);
EXPORT_SYMBOL(mii_check_media);
EXPORT_SYMBOL(generic_mii_ioctl);
\
== BitKeeper/etc/logging_ok ==
smh22 [at] boulderdash|BitKeeper/etc/logging_ok|20021120120217|03192
|1a0e4366ffd1b425
iap10 [at] striker|BitKeeper/etc/logging_ok|20031001155431|12496
D 1.31 03/10/20 16:45:58-05:00 pfisher [at] xen +1 -0
B
smh22 [at] boulderdash|ChangeSet|20021120105923|56899|1ee6296af7e15a
82
C
c Logging to logging [at] openlogging accepted
K 15781
O -rw-rw-r--
P BitKeeper/etc/logging_ok
------------------------------------------------
I18 1
pfisher [at] xen
== xen/include/xeno/mii.h ==
smh22 [at] boulderdash|xen-2.4.16/include/xeno/mii.h|20021120120209|
27029|2c4ed9538370864d
kaf24 [at] scramble|xen/include/xeno/mii.h|20030709162606|27971
D 1.4 03/10/20 16:45:52-05:00 pfisher [at] xen +0 -2
B
smh22 [at] boulderdash|ChangeSet|20021120105923|56899|1ee6296af7e15a
82
C
c Enable the generic mii processing routines.
K 27076
O -rw-rw-r--
P xen/include/xeno/mii.h
------------------------------------------------
D124 1
D136 1
# Patch checksum=1da1ed8f
-------------------------------------------------------
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