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freebsd-dev/sys/dev/mii/atphy.c

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Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
/*-
* Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org>
* 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 unmodified, 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Driver for the Attansic/Atheros F1 10/100/1000 PHY.
*/
#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_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include "miidevs.h"
#include <dev/mii/atphyreg.h>
#include "miibus_if.h"
static int atphy_probe(device_t);
static int atphy_attach(device_t);
static device_method_t atphy_methods[] = {
/* Device interface. */
DEVMETHOD(device_probe, atphy_probe),
DEVMETHOD(device_attach, atphy_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
Use DEVMETHOD_END.
2011-11-23 20:27:26 +00:00
DEVMETHOD_END
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
};
static devclass_t atphy_devclass;
static driver_t atphy_driver = {
"atphy",
atphy_methods,
- Remove attempts to implement setting of BMCR_LOOP/MIIF_NOLOOP (reporting IFM_LOOP based on BMCR_LOOP is left in place though as it might provide useful for debugging). For most mii(4) drivers it was unclear whether the PHYs driven by them actually support loopback or not. Moreover, typically loopback mode also needs to be activated on the MAC, which none of the Ethernet drivers using mii(4) implements. Given that loopback media has no real use (and obviously hardly had a chance to actually work) besides for driver development (which just loopback mode should be sufficient for though, i.e one doesn't necessary need support for loopback media) support for it is just dropped as both NetBSD and OpenBSD already did quite some time ago. - Let mii_phy_add_media() also announce the support of IFM_NONE. - Restructure the PHY entry points to use a structure of entry points instead of discrete function pointers, and extend this to include a "reset" entry point. Make sure any PHY-specific reset routine is always used, and provide one for lxtphy(4) which disables MII interrupts (as is done for a few other PHYs we have drivers for). This includes changing NIC drivers which previously just called the generic mii_phy_reset() to now actually call the PHY-specific reset routine, which might be crucial in some cases. While at it, the redundant checks in these NIC drivers for mii->mii_instance not being zero before calling the reset routines were removed because as soon as one PHY driver attaches mii->mii_instance is incremented and we hardly can end up in their media change callbacks etc if no PHY driver has attached as mii_attach() would have failed in that case and not attach a miibus(4) instance. Consequently, NIC drivers now no longer should call mii_phy_reset() directly, so it was removed from EXPORT_SYMS. - Add a mii_phy_dev_attach() as a companion helper to mii_phy_dev_probe(). The purpose of that function is to perform the common steps to attach a PHY driver instance and to hook it up to the miibus(4) instance and to optionally also handle the probing, addition and initialization of the supported media. So all a PHY driver without any special requirements has to do in its bus attach method is to call mii_phy_dev_attach() along with PHY-specific MIIF_* flags, a pointer to its PHY functions and the add_media set to one. All PHY drivers were updated to take advantage of mii_phy_dev_attach() as appropriate. Along with these changes the capability mask was added to the mii_softc structure so PHY drivers taking advantage of mii_phy_dev_attach() but still handling media on their own do not need to fiddle with the MII attach arguments anyway. - Keep track of the PHY offset in the mii_softc structure. This is done for compatibility with NetBSD/OpenBSD. - Keep track of the PHY's OUI, model and revision in the mii_softc structure. Several PHY drivers require this information also after attaching and previously had to wrap their own softc around mii_softc. NetBSD/OpenBSD also keep track of the model and revision on their mii_softc structure. All PHY drivers were updated to take advantage as appropriate. - Convert the mebers of the MII data structure to unsigned where appropriate. This is partly inspired by NetBSD/OpenBSD. - According to IEEE 802.3-2002 the bits actually have to be reversed when mapping an OUI to the MII ID registers. All PHY drivers and miidevs where changed as necessary. Actually this now again allows to largely share miidevs with NetBSD, which fixed this problem already 9 years ago. Consequently miidevs was synced as far as possible. - Add MIIF_NOMANPAUSE and mii_phy_flowstatus() calls to drivers that weren't explicitly converted to support flow control before. It's unclear whether flow control actually works with these but typically it should and their net behavior should be more correct with these changes in place than without if the MAC driver sets MIIF_DOPAUSE. Obtained from: NetBSD (partially) Reviewed by: yongari (earlier version), silence on arch@ and net@
2011-05-03 19:51:29 +00:00
sizeof(struct mii_softc)
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
};
DRIVER_MODULE(atphy, miibus, atphy_driver, atphy_devclass, 0, 0);
static int atphy_service(struct mii_softc *, struct mii_data *, int);
static void atphy_status(struct mii_softc *);
static void atphy_reset(struct mii_softc *);
static uint16_t atphy_anar(struct ifmedia_entry *);
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
static int atphy_setmedia(struct mii_softc *, int);
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
static const struct mii_phydesc atphys[] = {
- Remove attempts to implement setting of BMCR_LOOP/MIIF_NOLOOP (reporting IFM_LOOP based on BMCR_LOOP is left in place though as it might provide useful for debugging). For most mii(4) drivers it was unclear whether the PHYs driven by them actually support loopback or not. Moreover, typically loopback mode also needs to be activated on the MAC, which none of the Ethernet drivers using mii(4) implements. Given that loopback media has no real use (and obviously hardly had a chance to actually work) besides for driver development (which just loopback mode should be sufficient for though, i.e one doesn't necessary need support for loopback media) support for it is just dropped as both NetBSD and OpenBSD already did quite some time ago. - Let mii_phy_add_media() also announce the support of IFM_NONE. - Restructure the PHY entry points to use a structure of entry points instead of discrete function pointers, and extend this to include a "reset" entry point. Make sure any PHY-specific reset routine is always used, and provide one for lxtphy(4) which disables MII interrupts (as is done for a few other PHYs we have drivers for). This includes changing NIC drivers which previously just called the generic mii_phy_reset() to now actually call the PHY-specific reset routine, which might be crucial in some cases. While at it, the redundant checks in these NIC drivers for mii->mii_instance not being zero before calling the reset routines were removed because as soon as one PHY driver attaches mii->mii_instance is incremented and we hardly can end up in their media change callbacks etc if no PHY driver has attached as mii_attach() would have failed in that case and not attach a miibus(4) instance. Consequently, NIC drivers now no longer should call mii_phy_reset() directly, so it was removed from EXPORT_SYMS. - Add a mii_phy_dev_attach() as a companion helper to mii_phy_dev_probe(). The purpose of that function is to perform the common steps to attach a PHY driver instance and to hook it up to the miibus(4) instance and to optionally also handle the probing, addition and initialization of the supported media. So all a PHY driver without any special requirements has to do in its bus attach method is to call mii_phy_dev_attach() along with PHY-specific MIIF_* flags, a pointer to its PHY functions and the add_media set to one. All PHY drivers were updated to take advantage of mii_phy_dev_attach() as appropriate. Along with these changes the capability mask was added to the mii_softc structure so PHY drivers taking advantage of mii_phy_dev_attach() but still handling media on their own do not need to fiddle with the MII attach arguments anyway. - Keep track of the PHY offset in the mii_softc structure. This is done for compatibility with NetBSD/OpenBSD. - Keep track of the PHY's OUI, model and revision in the mii_softc structure. Several PHY drivers require this information also after attaching and previously had to wrap their own softc around mii_softc. NetBSD/OpenBSD also keep track of the model and revision on their mii_softc structure. All PHY drivers were updated to take advantage as appropriate. - Convert the mebers of the MII data structure to unsigned where appropriate. This is partly inspired by NetBSD/OpenBSD. - According to IEEE 802.3-2002 the bits actually have to be reversed when mapping an OUI to the MII ID registers. All PHY drivers and miidevs where changed as necessary. Actually this now again allows to largely share miidevs with NetBSD, which fixed this problem already 9 years ago. Consequently miidevs was synced as far as possible. - Add MIIF_NOMANPAUSE and mii_phy_flowstatus() calls to drivers that weren't explicitly converted to support flow control before. It's unclear whether flow control actually works with these but typically it should and their net behavior should be more correct with these changes in place than without if the MAC driver sets MIIF_DOPAUSE. Obtained from: NetBSD (partially) Reviewed by: yongari (earlier version), silence on arch@ and net@
2011-05-03 19:51:29 +00:00
MII_PHY_DESC(xxATHEROS, F1),
MII_PHY_DESC(xxATHEROS, F1_7),
MII_PHY_DESC(xxATHEROS, F2),
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
MII_PHY_END
};
- Remove attempts to implement setting of BMCR_LOOP/MIIF_NOLOOP (reporting IFM_LOOP based on BMCR_LOOP is left in place though as it might provide useful for debugging). For most mii(4) drivers it was unclear whether the PHYs driven by them actually support loopback or not. Moreover, typically loopback mode also needs to be activated on the MAC, which none of the Ethernet drivers using mii(4) implements. Given that loopback media has no real use (and obviously hardly had a chance to actually work) besides for driver development (which just loopback mode should be sufficient for though, i.e one doesn't necessary need support for loopback media) support for it is just dropped as both NetBSD and OpenBSD already did quite some time ago. - Let mii_phy_add_media() also announce the support of IFM_NONE. - Restructure the PHY entry points to use a structure of entry points instead of discrete function pointers, and extend this to include a "reset" entry point. Make sure any PHY-specific reset routine is always used, and provide one for lxtphy(4) which disables MII interrupts (as is done for a few other PHYs we have drivers for). This includes changing NIC drivers which previously just called the generic mii_phy_reset() to now actually call the PHY-specific reset routine, which might be crucial in some cases. While at it, the redundant checks in these NIC drivers for mii->mii_instance not being zero before calling the reset routines were removed because as soon as one PHY driver attaches mii->mii_instance is incremented and we hardly can end up in their media change callbacks etc if no PHY driver has attached as mii_attach() would have failed in that case and not attach a miibus(4) instance. Consequently, NIC drivers now no longer should call mii_phy_reset() directly, so it was removed from EXPORT_SYMS. - Add a mii_phy_dev_attach() as a companion helper to mii_phy_dev_probe(). The purpose of that function is to perform the common steps to attach a PHY driver instance and to hook it up to the miibus(4) instance and to optionally also handle the probing, addition and initialization of the supported media. So all a PHY driver without any special requirements has to do in its bus attach method is to call mii_phy_dev_attach() along with PHY-specific MIIF_* flags, a pointer to its PHY functions and the add_media set to one. All PHY drivers were updated to take advantage of mii_phy_dev_attach() as appropriate. Along with these changes the capability mask was added to the mii_softc structure so PHY drivers taking advantage of mii_phy_dev_attach() but still handling media on their own do not need to fiddle with the MII attach arguments anyway. - Keep track of the PHY offset in the mii_softc structure. This is done for compatibility with NetBSD/OpenBSD. - Keep track of the PHY's OUI, model and revision in the mii_softc structure. Several PHY drivers require this information also after attaching and previously had to wrap their own softc around mii_softc. NetBSD/OpenBSD also keep track of the model and revision on their mii_softc structure. All PHY drivers were updated to take advantage as appropriate. - Convert the mebers of the MII data structure to unsigned where appropriate. This is partly inspired by NetBSD/OpenBSD. - According to IEEE 802.3-2002 the bits actually have to be reversed when mapping an OUI to the MII ID registers. All PHY drivers and miidevs where changed as necessary. Actually this now again allows to largely share miidevs with NetBSD, which fixed this problem already 9 years ago. Consequently miidevs was synced as far as possible. - Add MIIF_NOMANPAUSE and mii_phy_flowstatus() calls to drivers that weren't explicitly converted to support flow control before. It's unclear whether flow control actually works with these but typically it should and their net behavior should be more correct with these changes in place than without if the MAC driver sets MIIF_DOPAUSE. Obtained from: NetBSD (partially) Reviewed by: yongari (earlier version), silence on arch@ and net@
2011-05-03 19:51:29 +00:00
static const struct mii_phy_funcs atphy_funcs = {
atphy_service,
atphy_status,
atphy_reset
};
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
static int
atphy_probe(device_t dev)
{
return (mii_phy_dev_probe(dev, atphys, BUS_PROBE_DEFAULT));
}
static int
atphy_attach(device_t dev)
{
- Remove attempts to implement setting of BMCR_LOOP/MIIF_NOLOOP (reporting IFM_LOOP based on BMCR_LOOP is left in place though as it might provide useful for debugging). For most mii(4) drivers it was unclear whether the PHYs driven by them actually support loopback or not. Moreover, typically loopback mode also needs to be activated on the MAC, which none of the Ethernet drivers using mii(4) implements. Given that loopback media has no real use (and obviously hardly had a chance to actually work) besides for driver development (which just loopback mode should be sufficient for though, i.e one doesn't necessary need support for loopback media) support for it is just dropped as both NetBSD and OpenBSD already did quite some time ago. - Let mii_phy_add_media() also announce the support of IFM_NONE. - Restructure the PHY entry points to use a structure of entry points instead of discrete function pointers, and extend this to include a "reset" entry point. Make sure any PHY-specific reset routine is always used, and provide one for lxtphy(4) which disables MII interrupts (as is done for a few other PHYs we have drivers for). This includes changing NIC drivers which previously just called the generic mii_phy_reset() to now actually call the PHY-specific reset routine, which might be crucial in some cases. While at it, the redundant checks in these NIC drivers for mii->mii_instance not being zero before calling the reset routines were removed because as soon as one PHY driver attaches mii->mii_instance is incremented and we hardly can end up in their media change callbacks etc if no PHY driver has attached as mii_attach() would have failed in that case and not attach a miibus(4) instance. Consequently, NIC drivers now no longer should call mii_phy_reset() directly, so it was removed from EXPORT_SYMS. - Add a mii_phy_dev_attach() as a companion helper to mii_phy_dev_probe(). The purpose of that function is to perform the common steps to attach a PHY driver instance and to hook it up to the miibus(4) instance and to optionally also handle the probing, addition and initialization of the supported media. So all a PHY driver without any special requirements has to do in its bus attach method is to call mii_phy_dev_attach() along with PHY-specific MIIF_* flags, a pointer to its PHY functions and the add_media set to one. All PHY drivers were updated to take advantage of mii_phy_dev_attach() as appropriate. Along with these changes the capability mask was added to the mii_softc structure so PHY drivers taking advantage of mii_phy_dev_attach() but still handling media on their own do not need to fiddle with the MII attach arguments anyway. - Keep track of the PHY offset in the mii_softc structure. This is done for compatibility with NetBSD/OpenBSD. - Keep track of the PHY's OUI, model and revision in the mii_softc structure. Several PHY drivers require this information also after attaching and previously had to wrap their own softc around mii_softc. NetBSD/OpenBSD also keep track of the model and revision on their mii_softc structure. All PHY drivers were updated to take advantage as appropriate. - Convert the mebers of the MII data structure to unsigned where appropriate. This is partly inspired by NetBSD/OpenBSD. - According to IEEE 802.3-2002 the bits actually have to be reversed when mapping an OUI to the MII ID registers. All PHY drivers and miidevs where changed as necessary. Actually this now again allows to largely share miidevs with NetBSD, which fixed this problem already 9 years ago. Consequently miidevs was synced as far as possible. - Add MIIF_NOMANPAUSE and mii_phy_flowstatus() calls to drivers that weren't explicitly converted to support flow control before. It's unclear whether flow control actually works with these but typically it should and their net behavior should be more correct with these changes in place than without if the MAC driver sets MIIF_DOPAUSE. Obtained from: NetBSD (partially) Reviewed by: yongari (earlier version), silence on arch@ and net@
2011-05-03 19:51:29 +00:00
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &atphy_funcs, 1);
- In the spirit of previous simplifications factor out the checks for a different PHY instance being selected and isolation out into the wrappers around the service methods rather than duplicating them over and over again (besides, a PHY driver shouldn't need to care about which instance it actually is). - Centralize the check for the need to isolate a non-zero PHY instance not supporting isolation in mii_mediachg() and just ignore it rather than panicing, which should sufficient given that a) things are likely to just work anyway if one doesn't plug in more than one port at a time and b) refusing to attach in this case just leaves us in a unknown but most likely also not exactly correct configuration (besides several drivers setting MIIF_NOISOLATE didn't care about these anyway, probably due to setting this flag for no real reason). - Minor fixes like removing unnecessary setting of sc->mii_anegticks, using sc->mii_anegticks instead of hardcoded values etc.
2010-10-02 18:53:12 +00:00
return (0);
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
}
static int
atphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
uint16_t anar, bmcr, bmsr;
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
/*
* If the interface is not up, don't do anything.
*/
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
break;
if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO ||
IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
atphy_setmedia(sc, ife->ifm_media);
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
break;
}
bmcr = 0;
switch (IFM_SUBTYPE(ife->ifm_media)) {
case IFM_100_TX:
bmcr = BMCR_S100;
break;
case IFM_10_T:
bmcr = BMCR_S10;
break;
case IFM_NONE:
bmcr = PHY_READ(sc, MII_BMCR);
/*
* XXX
* Due to an unknown reason powering down PHY resulted
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
* in unexpected results such as inaccessibility of
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
* hardware of freshly rebooted system. Disable
* powering down PHY until I got more information for
* Attansic/Atheros PHY hardwares.
*/
PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO);
goto done;
default:
return (EINVAL);
}
anar = atphy_anar(ife);
- Masking IFM_GMASK when also masking IFM_FDX is redundant and just complicates the code. - Don't let atphy_setmedia() announce PAUSE support for half-duplex when MIIF_FORCEPAUSE is set. - Simplify e1000phy_service() and ip1000phy_service() to only set the manual configuration bits once after we have figured them all out. For ip1000phy_service() this also means we no longer unnecessarily update the hardware along the road. MFC after: 1 week
2011-01-14 19:16:59 +00:00
if ((ife->ifm_media & IFM_FDX) != 0) {
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
bmcr |= BMCR_FDX;
- Masking IFM_GMASK when also masking IFM_FDX is redundant and just complicates the code. - Don't let atphy_setmedia() announce PAUSE support for half-duplex when MIIF_FORCEPAUSE is set. - Simplify e1000phy_service() and ip1000phy_service() to only set the manual configuration bits once after we have figured them all out. For ip1000phy_service() this also means we no longer unnecessarily update the hardware along the road. MFC after: 1 week
2011-01-14 19:16:59 +00:00
if ((ife->ifm_media & IFM_FLOW) != 0 ||
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
(sc->mii_flags & MIIF_FORCEPAUSE) != 0)
anar |= ANAR_PAUSE_TOWARDS;
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
}
if ((sc->mii_extcapabilities & (EXTSR_1000TFDX |
EXTSR_1000THDX)) != 0)
PHY_WRITE(sc, MII_100T2CR, 0);
PHY_WRITE(sc, MII_ANAR, anar | ANAR_CSMA);
/*
* Reset the PHY so all changes take effect.
*/
Use auto-negotiation for manual media type selection. This fixes establishment of 10/100Mbps link on Atheros AR8121(L1E).
2008-10-25 06:39:17 +00:00
PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET | BMCR_AUTOEN |
BMCR_STARTNEG);
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
done:
break;
case MII_TICK:
/*
* Is the interface even up?
*/
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
return (0);
/*
* Only used for autonegotiation.
*/
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
sc->mii_ticks = 0;
break;
}
/*
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
* Check for link.
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
* Read the status register twice; BMSR_LINK is latch-low.
*/
bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
if (bmsr & BMSR_LINK) {
sc->mii_ticks = 0;
break;
}
/* Announce link loss right after it happens. */
if (sc->mii_ticks++ == 0)
break;
if (sc->mii_ticks <= sc->mii_anegticks)
return (0);
sc->mii_ticks = 0;
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
atphy_setmedia(sc, ife->ifm_media);
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
break;
}
/* Update the media status. */
- Remove attempts to implement setting of BMCR_LOOP/MIIF_NOLOOP (reporting IFM_LOOP based on BMCR_LOOP is left in place though as it might provide useful for debugging). For most mii(4) drivers it was unclear whether the PHYs driven by them actually support loopback or not. Moreover, typically loopback mode also needs to be activated on the MAC, which none of the Ethernet drivers using mii(4) implements. Given that loopback media has no real use (and obviously hardly had a chance to actually work) besides for driver development (which just loopback mode should be sufficient for though, i.e one doesn't necessary need support for loopback media) support for it is just dropped as both NetBSD and OpenBSD already did quite some time ago. - Let mii_phy_add_media() also announce the support of IFM_NONE. - Restructure the PHY entry points to use a structure of entry points instead of discrete function pointers, and extend this to include a "reset" entry point. Make sure any PHY-specific reset routine is always used, and provide one for lxtphy(4) which disables MII interrupts (as is done for a few other PHYs we have drivers for). This includes changing NIC drivers which previously just called the generic mii_phy_reset() to now actually call the PHY-specific reset routine, which might be crucial in some cases. While at it, the redundant checks in these NIC drivers for mii->mii_instance not being zero before calling the reset routines were removed because as soon as one PHY driver attaches mii->mii_instance is incremented and we hardly can end up in their media change callbacks etc if no PHY driver has attached as mii_attach() would have failed in that case and not attach a miibus(4) instance. Consequently, NIC drivers now no longer should call mii_phy_reset() directly, so it was removed from EXPORT_SYMS. - Add a mii_phy_dev_attach() as a companion helper to mii_phy_dev_probe(). The purpose of that function is to perform the common steps to attach a PHY driver instance and to hook it up to the miibus(4) instance and to optionally also handle the probing, addition and initialization of the supported media. So all a PHY driver without any special requirements has to do in its bus attach method is to call mii_phy_dev_attach() along with PHY-specific MIIF_* flags, a pointer to its PHY functions and the add_media set to one. All PHY drivers were updated to take advantage of mii_phy_dev_attach() as appropriate. Along with these changes the capability mask was added to the mii_softc structure so PHY drivers taking advantage of mii_phy_dev_attach() but still handling media on their own do not need to fiddle with the MII attach arguments anyway. - Keep track of the PHY offset in the mii_softc structure. This is done for compatibility with NetBSD/OpenBSD. - Keep track of the PHY's OUI, model and revision in the mii_softc structure. Several PHY drivers require this information also after attaching and previously had to wrap their own softc around mii_softc. NetBSD/OpenBSD also keep track of the model and revision on their mii_softc structure. All PHY drivers were updated to take advantage as appropriate. - Convert the mebers of the MII data structure to unsigned where appropriate. This is partly inspired by NetBSD/OpenBSD. - According to IEEE 802.3-2002 the bits actually have to be reversed when mapping an OUI to the MII ID registers. All PHY drivers and miidevs where changed as necessary. Actually this now again allows to largely share miidevs with NetBSD, which fixed this problem already 9 years ago. Consequently miidevs was synced as far as possible. - Add MIIF_NOMANPAUSE and mii_phy_flowstatus() calls to drivers that weren't explicitly converted to support flow control before. It's unclear whether flow control actually works with these but typically it should and their net behavior should be more correct with these changes in place than without if the MAC driver sets MIIF_DOPAUSE. Obtained from: NetBSD (partially) Reviewed by: yongari (earlier version), silence on arch@ and net@
2011-05-03 19:51:29 +00:00
PHY_STATUS(sc);
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}
static void
atphy_status(struct mii_softc *sc)
{
struct mii_data *mii = sc->mii_pdata;
uint32_t bmsr, bmcr, ssr;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
if ((bmsr & BMSR_LINK) != 0)
mii->mii_media_status |= IFM_ACTIVE;
bmcr = PHY_READ(sc, MII_BMCR);
if ((bmcr & BMCR_ISO) != 0) {
mii->mii_media_active |= IFM_NONE;
mii->mii_media_status = 0;
return;
}
if ((bmcr & BMCR_LOOP) != 0)
mii->mii_media_active |= IFM_LOOP;
ssr = PHY_READ(sc, ATPHY_SSR);
if ((ssr & ATPHY_SSR_SPD_DPLX_RESOLVED) == 0) {
/* Erg, still trying, I guess... */
mii->mii_media_active |= IFM_NONE;
return;
}
switch (ssr & ATPHY_SSR_SPEED_MASK) {
case ATPHY_SSR_1000MBS:
mii->mii_media_active |= IFM_1000_T;
/*
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
* atphy(4) has a valid link so reset mii_ticks.
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
* Resetting mii_ticks is needed in order to
* detect link loss after auto-negotiation.
*/
sc->mii_ticks = 0;
break;
case ATPHY_SSR_100MBS:
mii->mii_media_active |= IFM_100_TX;
sc->mii_ticks = 0;
break;
case ATPHY_SSR_10MBS:
mii->mii_media_active |= IFM_10_T;
sc->mii_ticks = 0;
break;
default:
mii->mii_media_active |= IFM_NONE;
return;
}
if ((ssr & ATPHY_SSR_DUPLEX) != 0)
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc);
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
else
mii->mii_media_active |= IFM_HDX;
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
if ((IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) &&
(PHY_READ(sc, MII_100T2SR) & GTSR_MS_RES) != 0)
mii->mii_media_active |= IFM_ETH_MASTER;
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
}
static void
atphy_reset(struct mii_softc *sc)
{
Fix a bug introduced with r215298; when atphy_reset() is called from atphy_attach() the current media has not been set, yet, leading to a NULL-dereference in atphy_setmedia(). Submitted by: jkim (initial version)
2010-11-18 17:58:59 +00:00
struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
uint32_t reg;
int i;
/* Take PHY out of power down mode. */
PHY_WRITE(sc, 29, 0x29);
PHY_WRITE(sc, 30, 0);
reg = PHY_READ(sc, ATPHY_SCR);
/* Enable automatic crossover. */
reg |= ATPHY_SCR_AUTO_X_MODE;
/* Disable power down. */
reg &= ~ATPHY_SCR_MAC_PDOWN;
/* Enable CRS on Tx. */
reg |= ATPHY_SCR_ASSERT_CRS_ON_TX;
/* Auto correction for reversed cable polarity. */
reg |= ATPHY_SCR_POLARITY_REVERSAL;
PHY_WRITE(sc, ATPHY_SCR, reg);
/* Workaround F1 bug to reset phy. */
Fix a bug introduced with r215298; when atphy_reset() is called from atphy_attach() the current media has not been set, yet, leading to a NULL-dereference in atphy_setmedia(). Submitted by: jkim (initial version)
2010-11-18 17:58:59 +00:00
atphy_setmedia(sc, ife == NULL ? IFM_AUTO : ife->ifm_media);
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
for (i = 0; i < 1000; i++) {
DELAY(1);
if ((PHY_READ(sc, MII_BMCR) & BMCR_RESET) == 0)
break;
}
}
static uint16_t
atphy_anar(struct ifmedia_entry *ife)
{
uint16_t anar;
anar = 0;
switch (IFM_SUBTYPE(ife->ifm_media)) {
case IFM_AUTO:
anar |= ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10;
return (anar);
case IFM_1000_T:
return (anar);
case IFM_100_TX:
anar |= ANAR_TX;
break;
case IFM_10_T:
anar |= ANAR_10;
break;
default:
return (0);
}
- Masking IFM_GMASK when also masking IFM_FDX is redundant and just complicates the code. - Don't let atphy_setmedia() announce PAUSE support for half-duplex when MIIF_FORCEPAUSE is set. - Simplify e1000phy_service() and ip1000phy_service() to only set the manual configuration bits once after we have figured them all out. For ip1000phy_service() this also means we no longer unnecessarily update the hardware along the road. MFC after: 1 week
2011-01-14 19:16:59 +00:00
if ((ife->ifm_media & IFM_FDX) != 0) {
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
if (IFM_SUBTYPE(ife->ifm_media) == IFM_100_TX)
anar |= ANAR_TX_FD;
else
anar |= ANAR_10_FD;
}
return (anar);
}
static int
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
atphy_setmedia(struct mii_softc *sc, int media)
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
{
uint16_t anar;
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA;
- Masking IFM_GMASK when also masking IFM_FDX is redundant and just complicates the code. - Don't let atphy_setmedia() announce PAUSE support for half-duplex when MIIF_FORCEPAUSE is set. - Simplify e1000phy_service() and ip1000phy_service() to only set the manual configuration bits once after we have figured them all out. For ip1000phy_service() this also means we no longer unnecessarily update the hardware along the road. MFC after: 1 week
2011-01-14 19:16:59 +00:00
if ((IFM_SUBTYPE(media) == IFM_AUTO || (media & IFM_FDX) != 0) &&
((media & IFM_FLOW) != 0 ||
(sc->mii_flags & MIIF_FORCEPAUSE) != 0))
- Change these drivers to take advantage and use the generic IEEE 802.3 annex 31B full duplex flow control as well as the IFM_1000_T master support committed in r215297. For atphy(4) and jmphy(4) this includes changing these PHY drivers to no longer unconditionally advertise support for flow control but only if the selected media has IFM_FLOW set (or MIIF_FORCEPAUSE is set). - Rename {atphy,jmphy}_auto() to {atphy,jmphy}_setmedia() as these handle other media types as well. Reviewed by: yongari (plus additional testing) Obtained from: NetBSD (partially), OpenBSD (partially) MFC after: 2 weeks
2010-11-14 13:31:01 +00:00
anar |= ANAR_PAUSE_TOWARDS;
PHY_WRITE(sc, MII_ANAR, anar);
- Masking IFM_GMASK when also masking IFM_FDX is redundant and just complicates the code. - Don't let atphy_setmedia() announce PAUSE support for half-duplex when MIIF_FORCEPAUSE is set. - Simplify e1000phy_service() and ip1000phy_service() to only set the manual configuration bits once after we have figured them all out. For ip1000phy_service() this also means we no longer unnecessarily update the hardware along the road. MFC after: 1 week
2011-01-14 19:16:59 +00:00
if ((sc->mii_extcapabilities &
(EXTSR_1000TFDX | EXTSR_1000THDX)) != 0)
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
PHY_WRITE(sc, MII_100T2CR, GTCR_ADV_1000TFDX |
GTCR_ADV_1000THDX);
Explicitly clear 1000baseT control register for F1 PHY used in AR8132 FastEthernet controller. The PHY has no ability to establish a gigabit link. Previously only link parters which support down-shifting was able to establish link. This change should fix a long standing link establishment issue of AR8132. PR: kern/156935 MFC after: 1 week
2011-05-12 17:11:31 +00:00
else if (sc->mii_mpd_model == MII_MODEL_xxATHEROS_F1) {
/*
* AR8132 has 10/100 PHY and the PHY uses the same
* model number of F1 gigabit PHY. The PHY has no
* ability to establish gigabit link so explicitly
* disable 1000baseT configuration for the PHY.
* Otherwise, there is a case that atphy(4) could
* not establish a link against gigabit link partner
* unless the link partner supports down-shifting.
*/
PHY_WRITE(sc, MII_100T2CR, 0);
}
Add Attansic/Atheros F1 PHY driver.
2008-05-19 01:12:10 +00:00
PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN | BMCR_STARTNEG);
return (EJUSTRETURN);
}
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