a55fb8a458
replace mii_phy_probe() altogether. Compared to the latter the advantages of mii_attach() are: - intended to be called multiple times in order to attach PHYs in multiple passes (f.e. in order to only use sub-ranges of the 0 to MII_NPHY - 1 range) - being able to pass along the capability mask from the NIC to the PHY drivers - being able to specify at which address (phyloc) to probe for a PHY (instead of always probing at all addresses from 0 to MII_NPHY - 1) - being able to specify which PHY instance (offloc) to attach - being able to pass along MIIF_* flags from the NIC to the PHY drivers (f.e. as required to indicated to the PHY drivers that flow control is supported by the NIC driver, which actually is the motivation for this change). While at it, I used the opportunity to get rid of some hacks in mii(4) like miibus_probe() generally doing work besides sheer probing and the "EVIL HACK" (which will vanish entirely along with mii_phy_probe()) by passing the struct ifnet pointer via an argument of mii_attach() as well as to fix some resource leaks in mii(4) in case something fails. Commits which will update the PHY drivers to honor the MII flags passed down from the NIC drivers and take advantage of mii_attach() to get rid of certain types of hacks in NIC and PHY drivers as well as a conversion of the remaining uses of mii_phy_probe() will follow shortly. Reviewed by: jhb, yongari Obtained from: NetBSD (partially)
257 lines
8.4 KiB
C
257 lines
8.4 KiB
C
/* $NetBSD: miivar.h,v 1.8 1999/04/23 04:24:32 thorpej Exp $ */
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/*-
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* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
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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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*
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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 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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* $FreeBSD$
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*/
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#ifndef _DEV_MII_MIIVAR_H_
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#define _DEV_MII_MIIVAR_H_
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#include <sys/queue.h>
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/*
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* Media Independent Interface configuration defintions.
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*/
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struct mii_softc;
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/*
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* Callbacks from MII layer into network interface device driver.
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*/
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typedef int (*mii_readreg_t)(struct device *, int, int);
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typedef void (*mii_writereg_t)(struct device *, int, int, int);
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typedef void (*mii_statchg_t)(struct device *);
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/*
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* A network interface driver has one of these structures in its softc.
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* It is the interface from the network interface driver to the MII
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* layer.
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*/
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struct mii_data {
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struct ifmedia mii_media; /* media information */
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struct ifnet *mii_ifp; /* pointer back to network interface */
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/*
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* For network interfaces with multiple PHYs, a list of all
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* PHYs is required so they can all be notified when a media
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* request is made.
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*/
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LIST_HEAD(mii_listhead, mii_softc) mii_phys;
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int mii_instance;
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/*
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* PHY driver fills this in with active media status.
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*/
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int mii_media_status;
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int mii_media_active;
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/*
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* Calls from MII layer into network interface driver.
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*/
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mii_readreg_t mii_readreg;
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mii_writereg_t mii_writereg;
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mii_statchg_t mii_statchg;
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};
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typedef struct mii_data mii_data_t;
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/*
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* This call is used by the MII layer to call into the PHY driver
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* to perform a `service request'.
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*/
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typedef int (*mii_downcall_t)(struct mii_softc *, struct mii_data *, int);
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/*
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* Requests that can be made to the downcall.
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*/
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#define MII_TICK 1 /* once-per-second tick */
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#define MII_MEDIACHG 2 /* user changed media; perform the switch */
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#define MII_POLLSTAT 3 /* user requested media status; fill it in */
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/*
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* Each PHY driver's softc has one of these as the first member.
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* XXX This would be better named "phy_softc", but this is the name
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* XXX BSDI used, and we would like to have the same interface.
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*/
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struct mii_softc {
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device_t mii_dev; /* generic device glue */
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LIST_ENTRY(mii_softc) mii_list; /* entry on parent's PHY list */
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int mii_phy; /* our MII address */
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int mii_inst; /* instance for ifmedia */
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mii_downcall_t mii_service; /* our downcall */
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struct mii_data *mii_pdata; /* pointer to parent's mii_data */
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int mii_flags; /* misc. flags; see below */
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int mii_capabilities; /* capabilities from BMSR */
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int mii_extcapabilities; /* extended capabilities */
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int mii_ticks; /* MII_TICK counter */
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int mii_anegticks; /* ticks before retrying aneg */
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int mii_media_active; /* last active media */
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int mii_media_status; /* last active status */
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};
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typedef struct mii_softc mii_softc_t;
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/* mii_flags */
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#define MIIF_INITDONE 0x00000001 /* has been initialized (mii_data) */
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#define MIIF_NOISOLATE 0x00000002 /* do not isolate the PHY */
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#define MIIF_NOLOOP 0x00000004 /* no loopback capability */
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#define MIIF_AUTOTSLEEP 0x00000010 /* use tsleep(), not callout() */
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#define MIIF_HAVEFIBER 0x00000020 /* from parent: has fiber interface */
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#define MIIF_HAVE_GTCR 0x00000040 /* has 100base-T2/1000base-T CR */
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#define MIIF_IS_1000X 0x00000080 /* is a 1000BASE-X device */
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#define MIIF_DOPAUSE 0x00000100 /* advertise PAUSE capability */
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#define MIIF_IS_HPNA 0x00000200 /* is a HomePNA device */
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#define MIIF_FORCEANEG 0x00000400 /* force auto-negotiation */
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#define MIIF_MACPRIV0 0x01000000 /* private to the MAC driver */
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#define MIIF_MACPRIV1 0x02000000 /* private to the MAC driver */
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#define MIIF_MACPRIV2 0x04000000 /* private to the MAC driver */
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#define MIIF_PHYPRIV0 0x10000000 /* private to the PHY driver */
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#define MIIF_PHYPRIV1 0x20000000 /* private to the PHY driver */
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#define MIIF_PHYPRIV2 0x40000000 /* private to the PHY driver */
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/* Default mii_anegticks values */
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#define MII_ANEGTICKS 5
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#define MII_ANEGTICKS_GIGE 17
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#define MIIF_INHERIT_MASK (MIIF_NOISOLATE|MIIF_NOLOOP|MIIF_AUTOTSLEEP)
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/*
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* Special `locators' passed to mii_attach(). If one of these is not
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* an `any' value, we look for *that* PHY and configure it. If both
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* are not `any', that is an error, and mii_attach() will panic.
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*/
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#define MII_OFFSET_ANY -1
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#define MII_PHY_ANY -1
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/*
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* Used to attach a PHY to a parent.
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*/
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struct mii_attach_args {
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struct mii_data *mii_data; /* pointer to parent data */
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int mii_phyno; /* MII address */
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int mii_id1; /* PHY ID register 1 */
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int mii_id2; /* PHY ID register 2 */
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int mii_capmask; /* capability mask from BMSR */
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};
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typedef struct mii_attach_args mii_attach_args_t;
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/*
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* Used to match a PHY.
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*/
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struct mii_phydesc {
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u_int32_t mpd_oui; /* the PHY's OUI */
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u_int32_t mpd_model; /* the PHY's model */
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const char *mpd_name; /* the PHY's name */
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};
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#define MII_PHY_DESC(a, b) { MII_OUI_ ## a, MII_MODEL_ ## a ## _ ## b, \
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MII_STR_ ## a ## _ ## b }
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#define MII_PHY_END { 0, 0, NULL }
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/*
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* An array of these structures map MII media types to BMCR/ANAR settings.
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*/
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struct mii_media {
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int mm_bmcr; /* BMCR settings for this media */
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int mm_anar; /* ANAR settings for this media */
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int mm_gtcr; /* 100base-T2 or 1000base-T CR */
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};
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#define MII_MEDIA_NONE 0
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#define MII_MEDIA_10_T 1
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#define MII_MEDIA_10_T_FDX 2
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#define MII_MEDIA_100_T4 3
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#define MII_MEDIA_100_TX 4
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#define MII_MEDIA_100_TX_FDX 5
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#define MII_MEDIA_1000_X 6
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#define MII_MEDIA_1000_X_FDX 7
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#define MII_MEDIA_1000_T 8
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#define MII_MEDIA_1000_T_FDX 9
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#define MII_NMEDIA 10
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#ifdef _KERNEL
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#define PHY_READ(p, r) \
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MIIBUS_READREG((p)->mii_dev, (p)->mii_phy, (r))
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#define PHY_WRITE(p, r, v) \
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MIIBUS_WRITEREG((p)->mii_dev, (p)->mii_phy, (r), (v))
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enum miibus_device_ivars {
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MIIBUS_IVAR_FLAGS
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};
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/*
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* Simplified accessors for miibus
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*/
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#define MIIBUS_ACCESSOR(var, ivar, type) \
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__BUS_ACCESSOR(miibus, var, MIIBUS, ivar, type)
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MIIBUS_ACCESSOR(flags, FLAGS, int)
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extern devclass_t miibus_devclass;
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extern driver_t miibus_driver;
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int miibus_probe(device_t);
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int miibus_attach(device_t);
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int miibus_detach(device_t);
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int mii_attach(device_t, device_t *, struct ifnet *, ifm_change_cb_t,
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ifm_stat_cb_t, int, int, int, int);
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int mii_anar(int);
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void mii_down(struct mii_data *);
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int mii_mediachg(struct mii_data *);
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void mii_tick(struct mii_data *);
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void mii_pollstat(struct mii_data *);
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int mii_phy_probe(device_t, device_t *, ifm_change_cb_t, ifm_stat_cb_t);
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void mii_add_media(struct mii_softc *);
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void mii_phy_add_media(struct mii_softc *);
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int mii_phy_auto(struct mii_softc *);
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int mii_phy_detach(device_t dev);
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void mii_phy_down(struct mii_softc *);
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void mii_phy_reset(struct mii_softc *);
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void mii_phy_setmedia(struct mii_softc *sc);
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void mii_phy_update(struct mii_softc *, int);
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int mii_phy_tick(struct mii_softc *);
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const struct mii_phydesc * mii_phy_match(const struct mii_attach_args *ma,
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const struct mii_phydesc *mpd);
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const struct mii_phydesc * mii_phy_match_gen(const struct mii_attach_args *ma,
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const struct mii_phydesc *mpd, size_t endlen);
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int mii_phy_dev_probe(device_t dev, const struct mii_phydesc *mpd, int mrv);
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void ukphy_status(struct mii_softc *);
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#endif /* _KERNEL */
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#endif /* _DEV_MII_MIIVAR_H_ */
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