usr/src/lib/fm/topo/modules/common/pcibus/did_impl.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _DID_IMPL_H
  28 #define _DID_IMPL_H
  29
  30 #include <sys/pci.h>
  31 #include <fm/libtopo.h>
  32 #include <libdevinfo.h>
  33 #include <libnvpair.h>
  34 #include <did.h>
  35
  36 #ifdef __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 #define REC_HASHLEN     253
  41
  42 /*
  43  * Slot name info is attached to devinfo nodes, compressed inside of
  44  * a "slot-names" property.  When we dig this out we store each name
  45  * as an FMRI, along with the device number to which it applies.
  46  */
  47 typedef struct slotnm {
  48         topo_mod_t *snm_mod;    /* module that allocated the slot name */
  49         struct slotnm *snm_next;
  50         int snm_dev;    /* device on the bus that implements the slot */
  51         char *snm_name; /* name describing the slot */
  52 } slotnm_t;
  53
  54 typedef struct did_hash did_hash_t;
  55
  56 /*
  57  * Private data stored with a tnode_t.  We collect slot-name info from
  58  * di_nodes that describe buses, but then don't use it until we get to
  59  * a tnode_t actually describing a function of a device.  We also use
  60  * this struct to pass around bus, dev, function info so that doesn't
  61  * have to be re-computed.
  62  */
  63 struct did {
  64         struct did *dp_next;    /* for chaining in a hash bucket */
  65         struct did *dp_link;    /* for chaining to related did_t */
  66         struct did *dp_chain;   /* for chaining to another chain of did_ts */
  67         did_hash_t *dp_hash;    /* the hash table where we reside */
  68         topo_mod_t *dp_mod;     /* module that allocated the private data */
  69         di_node_t dp_src;       /* di_node_t from which the info was derived */
  70         int dp_refcnt;          /* multiple nodes may point at a did_t */
  71         uint_t dp_excap;        /* PCI-Express port/device type */
  72         int dp_physlot;         /* PCI-Express physical slot # */
  73         char *dp_physlot_name;  /* PCI-Express physical slot name */
  74         int dp_class;           /* PCI class */
  75         int dp_subclass;        /* PCI subclass */
  76         char *dp_devtype;       /* PCI 1275 spec device-type */
  77         int dp_board;           /* Board number */
  78         int dp_bridge;          /* Bridge number */
  79         int dp_rc;              /* Root Complex number */
  80         int dp_bus;             /* PCI bus number */
  81         int dp_dev;             /* PCI device number on the above bus */
  82         int dp_fn;              /* PCI function number of the above device */
  83         int dp_bdf;             /* PCI "real" bdf */
  84         int dp_nslots;          /* PCI number of slots described */
  85         slotnm_t *dp_slotnames; /* PCI slot names list */
  86         tnode_t *dp_tnode;      /* the parent tnode */
  87         char *dp_slot_label;    /* the slot label */
  88 };
  89
  90 struct did_hash {
  91         did_t **dph_hash;       /* hash bucket array */
  92         uint_t dph_hashlen;     /* size of hash bucket array */
  93         uint_t dph_nelems;      /* number of elements in the hash */
  94         topo_mod_t *dph_mod;    /* module that allocated the hash table */
  95 };
  96
  97 #ifdef __cplusplus
  98 }
  99 #endif
 100
 101 #endif /* _DID_IMPL_H */