efd4fc3fb3
support in mii(4):
- Merge generic flow control advertisement (which can be enabled by
passing by MIIF_DOPAUSE to mii_attach(9)) and parsing support from
NetBSD into mii_physubr.c and ukphy_subr.c. Unlike as in NetBSD,
IFM_FLOW isn't implemented as a global option via the "don't care
mask" but instead as a media specific option this. This has the
following advantages:
o allows flow control advertisement with autonegotiation to be
turned on and off via ifconfig(8) with the default typically
being off (though MIIF_FORCEPAUSE has been added causing flow
control to be always advertised, allowing to easily MFC this
changes for drivers that previously used home-grown support for
flow control that behaved that way without breaking POLA)
o allows to deal with PHY drivers where flow control advertisement
with manual selection doesn't work or at least isn't implemented,
like it's the case with brgphy(4), e1000phy(4) and ip1000phy(4),
by setting MIIF_NOMANPAUSE
o the available combinations of media options are readily available
from the `ifconfig -m` output
- Add IFM_FLOW to IFM_SHARED_OPTION_DESCRIPTIONS and IFM_ETH_RXPAUSE
and IFM_ETH_TXPAUSE to IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS so
these are understood by ifconfig(8).
o Make the master/slave support in mii(4) actually usable:
- Change IFM_ETH_MASTER from being implemented as a global option via
the "don't care mask" to a media specific one as it actually is only
applicable to IFM_1000_T to date.
- Let mii_phy_setmedia() set GTCR_MAN_MS in IFM_1000_T slave mode to
actually configure manually selected slave mode (like we also do in
the PHY specific implementations).
- Add IFM_ETH_MASTER to IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS so it
is understood by ifconfig(8).
o Switch bge(4), bce(4), msk(4), nfe(4) and stge(4) along with brgphy(4),
e1000phy(4) and ip1000phy(4) to use the generic flow control support
instead of home-grown solutions via IFM_FLAGs. This includes changing
these PHY drivers and smcphy(4) to no longer unconditionally advertise
support for flow control but only if the selected media has IFM_FLOW
set (or MIIF_FORCEPAUSE is set) and implemented for these media variants,
i.e. typically only for copper.
o Switch brgphy(4), ciphy(4), e1000phy(4) and ip1000phy(4) to report and
set IFM_1000_T master mode via IFM_ETH_MASTER instead of via IFF_LINK0
and some IFM_FLAGn.
o Switch brgphy(4) to add at least the the supported copper media based on
the contents of the BMSR via mii_phy_add_media() instead of hardcoding
them. The latter approach seems to have developed historically, besides
causing unnecessary code duplication it was also undesirable because
brgphy_mii_phy_auto() already based the capability advertisement on the
contents of the BMSR though.
o Let brgphy(4) set IFM_1000_T master mode on all supported PHY and not
just BCM5701. Apparently this was a misinterpretation of a workaround
in the Linux tg3 driver; BCM5701 seem to require RGPHY_1000CTL_MSE and
BRGPHY_1000CTL_MSC to be set when configuring autonegotiation but
this doesn't mean we can't set these as well on other PHYs for manual
media selection.
o Let ukphy_status() report IFM_1000_T master mode via IFM_ETH_MASTER so
IFM_1000_T master mode support now is generally available with all PHY
drivers.
o Don't let e1000phy(4) set master/slave bits for IFM_1000_SX as it's
not applicable there.
Reviewed by: yongari (plus additional testing)
Obtained from: NetBSD (partially), OpenBSD (partially)
MFC after: 2 weeks
213 lines
8.8 KiB
C
213 lines
8.8 KiB
C
/* $NetBSD: mii.h,v 1.9 2001/05/31 03:07:14 thorpej Exp $ */
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/*-
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* Copyright (c) 1997 Manuel Bouyer. All rights reserved.
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*
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* Modification to match BSD/OS 3.0 MII interface by Jason R. Thorpe,
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* Numerical Aerospace Simulation Facility, NASA Ames Research Center.
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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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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _DEV_MII_MII_H_
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#define _DEV_MII_MII_H_
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/*
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* Registers common to all PHYs.
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*/
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#define MII_NPHY 32 /* max # of PHYs per MII */
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/*
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* MII commands, used if a device must drive the MII lines
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* manually.
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*/
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#define MII_COMMAND_START 0x01
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#define MII_COMMAND_READ 0x02
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#define MII_COMMAND_WRITE 0x01
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#define MII_COMMAND_ACK 0x02
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#define MII_BMCR 0x00 /* Basic mode control register (rw) */
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#define BMCR_RESET 0x8000 /* reset */
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#define BMCR_LOOP 0x4000 /* loopback */
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#define BMCR_SPEED0 0x2000 /* speed selection (LSB) */
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#define BMCR_AUTOEN 0x1000 /* autonegotiation enable */
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#define BMCR_PDOWN 0x0800 /* power down */
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#define BMCR_ISO 0x0400 /* isolate */
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#define BMCR_STARTNEG 0x0200 /* restart autonegotiation */
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#define BMCR_FDX 0x0100 /* Set duplex mode */
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#define BMCR_CTEST 0x0080 /* collision test */
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#define BMCR_SPEED1 0x0040 /* speed selection (MSB) */
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#define BMCR_S10 0x0000 /* 10 Mb/s */
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#define BMCR_S100 BMCR_SPEED0 /* 100 Mb/s */
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#define BMCR_S1000 BMCR_SPEED1 /* 1000 Mb/s */
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#define BMCR_SPEED(x) ((x) & (BMCR_SPEED0|BMCR_SPEED1))
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#define MII_BMSR 0x01 /* Basic mode status register (ro) */
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#define BMSR_100T4 0x8000 /* 100 base T4 capable */
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#define BMSR_100TXFDX 0x4000 /* 100 base Tx full duplex capable */
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#define BMSR_100TXHDX 0x2000 /* 100 base Tx half duplex capable */
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#define BMSR_10TFDX 0x1000 /* 10 base T full duplex capable */
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#define BMSR_10THDX 0x0800 /* 10 base T half duplex capable */
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#define BMSR_100T2FDX 0x0400 /* 100 base T2 full duplex capable */
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#define BMSR_100T2HDX 0x0200 /* 100 base T2 half duplex capable */
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#define BMSR_EXTSTAT 0x0100 /* Extended status in register 15 */
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#define BMSR_MFPS 0x0040 /* MII Frame Preamble Suppression */
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#define BMSR_ACOMP 0x0020 /* Autonegotiation complete */
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#define BMSR_RFAULT 0x0010 /* Link partner fault */
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#define BMSR_ANEG 0x0008 /* Autonegotiation capable */
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#define BMSR_LINK 0x0004 /* Link status */
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#define BMSR_JABBER 0x0002 /* Jabber detected */
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#define BMSR_EXTCAP 0x0001 /* Extended capability */
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#define BMSR_DEFCAPMASK 0xffffffff
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/*
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* Note that the EXTSTAT bit indicates that there is extended status
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* info available in register 15, but 802.3 section 22.2.4.3 also
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* states that that all 1000 Mb/s capable PHYs will set this bit to 1.
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*/
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#if 0
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#define BMSR_MEDIAMASK (BMSR_100T4|BMSR_100TXFDX|BMSR_100TXHDX|BMSR_10TFDX| \
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BMSR_10THDX|BMSR_ANEG)
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#else
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/* NetBSD uses: */
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#define BMSR_MEDIAMASK (BMSR_100T4|BMSR_100TXFDX|BMSR_100TXHDX| \
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BMSR_10TFDX|BMSR_10THDX|BMSR_100T2FDX|BMSR_100T2HDX)
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#endif
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/*
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* Convert BMSR media capabilities to ANAR bits for autonegotiation.
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* Note the shift chopps off the BMSR_ANEG bit.
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*/
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#define BMSR_MEDIA_TO_ANAR(x) (((x) & BMSR_MEDIAMASK) >> 6)
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#define MII_PHYIDR1 0x02 /* ID register 1 (ro) */
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#define MII_PHYIDR2 0x03 /* ID register 2 (ro) */
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#define IDR2_OUILSB 0xfc00 /* OUI LSB */
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#define IDR2_MODEL 0x03f0 /* vendor model */
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#define IDR2_REV 0x000f /* vendor revision */
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#define MII_OUI(id1, id2) (((id1) << 6) | ((id2) >> 10))
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#define MII_MODEL(id2) (((id2) & IDR2_MODEL) >> 4)
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#define MII_REV(id2) ((id2) & IDR2_REV)
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#define MII_ANAR 0x04 /* Autonegotiation advertisement (rw) */
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/* section 28.2.4.1 and 37.2.6.1 */
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#define ANAR_NP 0x8000 /* Next page (ro) */
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#define ANAR_ACK 0x4000 /* link partner abilities acknowledged (ro) */
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#define ANAR_RF 0x2000 /* remote fault (ro) */
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#define ANAR_FC 0x0400 /* local device supports PAUSE */
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#define ANAR_T4 0x0200 /* local device supports 100bT4 */
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#define ANAR_TX_FD 0x0100 /* local device supports 100bTx FD */
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#define ANAR_TX 0x0080 /* local device supports 100bTx */
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#define ANAR_10_FD 0x0040 /* local device supports 10bT FD */
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#define ANAR_10 0x0020 /* local device supports 10bT */
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#define ANAR_CSMA 0x0001 /* protocol selector CSMA/CD */
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#define ANAR_PAUSE_NONE (0 << 10)
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#define ANAR_PAUSE_SYM (1 << 10)
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#define ANAR_PAUSE_ASYM (2 << 10)
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#define ANAR_PAUSE_TOWARDS (3 << 10)
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#define ANAR_X_FD 0x0020 /* local device supports 1000BASE-X FD */
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#define ANAR_X_HD 0x0040 /* local device supports 1000BASE-X HD */
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#define ANAR_X_PAUSE_NONE (0 << 7)
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#define ANAR_X_PAUSE_SYM (1 << 7)
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#define ANAR_X_PAUSE_ASYM (2 << 7)
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#define ANAR_X_PAUSE_TOWARDS (3 << 7)
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#define MII_ANLPAR 0x05 /* Autonegotiation lnk partner abilities (rw) */
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/* section 28.2.4.1 and 37.2.6.1 */
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#define ANLPAR_NP 0x8000 /* Next page (ro) */
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#define ANLPAR_ACK 0x4000 /* link partner accepted ACK (ro) */
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#define ANLPAR_RF 0x2000 /* remote fault (ro) */
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#define ANLPAR_FC 0x0400 /* link partner supports PAUSE */
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#define ANLPAR_T4 0x0200 /* link partner supports 100bT4 */
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#define ANLPAR_TX_FD 0x0100 /* link partner supports 100bTx FD */
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#define ANLPAR_TX 0x0080 /* link partner supports 100bTx */
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#define ANLPAR_10_FD 0x0040 /* link partner supports 10bT FD */
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#define ANLPAR_10 0x0020 /* link partner supports 10bT */
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#define ANLPAR_CSMA 0x0001 /* protocol selector CSMA/CD */
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#define ANLPAR_PAUSE_MASK (3 << 10)
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#define ANLPAR_PAUSE_NONE (0 << 10)
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#define ANLPAR_PAUSE_SYM (1 << 10)
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#define ANLPAR_PAUSE_ASYM (2 << 10)
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#define ANLPAR_PAUSE_TOWARDS (3 << 10)
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#define ANLPAR_X_FD 0x0020 /* local device supports 1000BASE-X FD */
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#define ANLPAR_X_HD 0x0040 /* local device supports 1000BASE-X HD */
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#define ANLPAR_X_PAUSE_MASK (3 << 7)
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#define ANLPAR_X_PAUSE_NONE (0 << 7)
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#define ANLPAR_X_PAUSE_SYM (1 << 7)
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#define ANLPAR_X_PAUSE_ASYM (2 << 7)
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#define ANLPAR_X_PAUSE_TOWARDS (3 << 7)
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#define MII_ANER 0x06 /* Autonegotiation expansion (ro) */
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/* section 28.2.4.1 and 37.2.6.1 */
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#define ANER_MLF 0x0010 /* multiple link detection fault */
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#define ANER_LPNP 0x0008 /* link parter next page-able */
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#define ANER_NP 0x0004 /* next page-able */
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#define ANER_PAGE_RX 0x0002 /* Page received */
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#define ANER_LPAN 0x0001 /* link parter autoneg-able */
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#define MII_ANNP 0x07 /* Autonegotiation next page */
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/* section 28.2.4.1 and 37.2.6.1 */
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#define MII_ANLPRNP 0x08 /* Autonegotiation link partner rx next page */
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/* section 32.5.1 and 37.2.6.1 */
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/* This is also the 1000baseT control register */
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#define MII_100T2CR 0x09 /* 100base-T2 control register */
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#define GTCR_TEST_MASK 0xe000 /* see 802.3ab ss. 40.6.1.1.2 */
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#define GTCR_MAN_MS 0x1000 /* enable manual master/slave control */
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#define GTCR_ADV_MS 0x0800 /* 1 = adv. master, 0 = adv. slave */
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#define GTCR_PORT_TYPE 0x0400 /* 1 = DCE, 0 = DTE (NIC) */
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#define GTCR_ADV_1000TFDX 0x0200 /* adv. 1000baseT FDX */
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#define GTCR_ADV_1000THDX 0x0100 /* adv. 1000baseT HDX */
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/* This is also the 1000baseT status register */
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#define MII_100T2SR 0x0a /* 100base-T2 status register */
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#define GTSR_MAN_MS_FLT 0x8000 /* master/slave config fault */
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#define GTSR_MS_RES 0x4000 /* result: 1 = master, 0 = slave */
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#define GTSR_LRS 0x2000 /* local rx status, 1 = ok */
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#define GTSR_RRS 0x1000 /* remove rx status, 1 = ok */
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#define GTSR_LP_1000TFDX 0x0800 /* link partner 1000baseT FDX capable */
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#define GTSR_LP_1000THDX 0x0400 /* link partner 1000baseT HDX capable */
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#define GTSR_LP_ASM_DIR 0x0200 /* link partner asym. pause dir. capable */
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#define GTSR_IDLE_ERR 0x00ff /* IDLE error count */
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#define MII_EXTSR 0x0f /* Extended status register */
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#define EXTSR_1000XFDX 0x8000 /* 1000X full-duplex capable */
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#define EXTSR_1000XHDX 0x4000 /* 1000X half-duplex capable */
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#define EXTSR_1000TFDX 0x2000 /* 1000T full-duplex capable */
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#define EXTSR_1000THDX 0x1000 /* 1000T half-duplex capable */
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#define EXTSR_MEDIAMASK (EXTSR_1000XFDX|EXTSR_1000XHDX| \
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EXTSR_1000TFDX|EXTSR_1000THDX)
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#endif /* _DEV_MII_MII_H_ */
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