sun4v/xaui/xaui.c

	xaui.c revision 9c94f155585ea35e938fea603bc227c685223abd
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <string.h>
#include <fm/topo_mod.h>
#include <fm/topo_hc.h>
#include <sys/fm/protocol.h>
#include "xaui.h"

/*
 * xaui.c
 *  sun4v specific xaui enumerators
 */

#ifdef __cplusplus
extern "C" {
#endif

#define XAUI_VERSION    TOPO_VERSION
#define XFP_MAX 1   /* max number of xfp per xaui card */

static int xaui_enum(topo_mod_t *, tnode_t *, const char *, topo_instance_t,
            topo_instance_t, void *, void *);

static const topo_modops_t xaui_ops =
    { xaui_enum, NULL };

const topo_modinfo_t xaui_info =
    {XAUI, FM_FMRI_SCHEME_HC, XAUI_VERSION, &xaui_ops};

static const topo_pgroup_info_t xaui_auth_pgroup = {
    FM_FMRI_AUTHORITY,
    TOPO_STABILITY_PRIVATE,
    TOPO_STABILITY_PRIVATE,
    1
};

/*ARGSUSED*/
void
_topo_init(topo_mod_t *mod, topo_version_t version)
{
    /*
     * Turn on module debugging output
     */
    if (getenv("TOPOXAUIDBG") != NULL)
        topo_mod_setdebug(mod);
    topo_mod_dprintf(mod, "initializing xaui enumerator\n");

    if (topo_mod_register(mod, &xaui_info, TOPO_VERSION) < 0) {
        topo_mod_dprintf(mod, "xaui registration failed: %s\n",
            topo_mod_errmsg(mod));
        return; /* mod errno already set */
    }
    topo_mod_dprintf(mod, "xaui enum initd\n");
}

void
_topo_fini(topo_mod_t *mod)
{
    topo_mod_unregister(mod);
}

static tnode_t *
xaui_tnode_create(topo_mod_t *mod, tnode_t *parent,
    const char *name, topo_instance_t i, void *priv)
{
    int err;
    nvlist_t *fmri;
    tnode_t *ntn;
    nvlist_t *auth = topo_mod_auth(mod, parent);

    fmri = topo_mod_hcfmri(mod, parent, FM_HC_SCHEME_VERSION, name, i,
        NULL, auth, NULL, NULL, NULL);
    nvlist_free(auth);

    if (fmri == NULL) {
        topo_mod_dprintf(mod,
            "Unable to make nvlist for %s bind: %s.\n",
            name, topo_mod_errmsg(mod));
        return (NULL);
    }

    ntn = topo_node_bind(mod, parent, name, i, fmri);
    nvlist_free(fmri);
    if (ntn == NULL) {
        topo_mod_dprintf(mod,
            "topo_node_bind (%s%d/%s%d) failed: %s\n",
            topo_node_name(parent), topo_node_instance(parent),
            name, i,
            topo_strerror(topo_mod_errno(mod)));
        return (NULL);
    }

    topo_node_setspecific(ntn, priv);
    if (topo_pgroup_create(ntn, &xaui_auth_pgroup, &err) == 0) {
        (void) topo_prop_inherit(ntn, FM_FMRI_AUTHORITY,
            FM_FMRI_AUTH_PRODUCT, &err);
        (void) topo_prop_inherit(ntn, FM_FMRI_AUTHORITY,
            FM_FMRI_AUTH_PRODUCT_SN, &err);
        (void) topo_prop_inherit(ntn, FM_FMRI_AUTHORITY,
            FM_FMRI_AUTH_CHASSIS, &err);
        (void) topo_prop_inherit(ntn, FM_FMRI_AUTHORITY,
            FM_FMRI_AUTH_SERVER, &err);
    }
    return (ntn);
}


static int
xaui_fru_set(topo_mod_t *mp, tnode_t *tn)
{
    nvlist_t *fmri;
    int err, e;

    if (topo_node_resource(tn, &fmri, &err) < 0 ||
        fmri == NULL) {
        topo_mod_dprintf(mp, "FRU_fmri_set error: %s\n",
            topo_strerror(topo_mod_errno(mp)));
        return (topo_mod_seterrno(mp, err));
    }
    e = topo_node_fru_set(tn, fmri, 0, &err);
    nvlist_free(fmri);
    if (e < 0)
        return (topo_mod_seterrno(mp, err));
    return (0);
}

static int
xaui_label_set(topo_mod_t *mod, tnode_t *node, topo_instance_t n)
{
    const char *label = NULL;
    char *plat, *pp;
    int err;
    int i, p;

    if (Phyxaui_Names == NULL)
        return (-1);

    if (topo_prop_get_string(node,
        FM_FMRI_AUTHORITY, FM_FMRI_AUTH_PRODUCT, &plat, &err) < 0) {
        return (topo_mod_seterrno(mod, err));
    }
    /*
     * Trim SUNW, from the platform name
     */
    pp = strchr(plat, ',');
    if (pp == NULL)
        pp = plat;
    else
        ++pp;

    for (p = 0; p < Phyxaui_Names->psn_nplats; p++) {
        if (strcmp(Phyxaui_Names->psn_names[p].pnm_platform,
            pp) != 0)
            continue;
        for (i = 0; i < Phyxaui_Names->psn_names[p].pnm_nnames; i++) {
            physnm_t ps;
            ps = Phyxaui_Names->psn_names[p].pnm_names[i];
            if (ps.ps_num == n) {
                label = ps.ps_label;
                break;
            }
        }
        break;
    }
    topo_mod_strfree(mod, plat);

    if (label != NULL) {
        if (topo_prop_set_string(node, TOPO_PGROUP_PROTOCOL,
            TOPO_PROP_LABEL, TOPO_PROP_IMMUTABLE,
            label, &err) != 0) {
            return (topo_mod_seterrno(mod, err));
        }
    }
    return (0);
}
/*ARGSUSED*/
static tnode_t *
xaui_declare(tnode_t *parent, const char *name, topo_instance_t i,
    void *priv, topo_mod_t *mod)
{
    tnode_t *ntn;
    nvlist_t *fmri = NULL;
    int e;

    if ((ntn = xaui_tnode_create(mod, parent, name, i, NULL)) == NULL) {
        topo_mod_dprintf(mod, "%s ntn = NULL\n", name);
        return (NULL);
    }

    (void) xaui_fru_set(mod, ntn);

    (void) xaui_label_set(mod, ntn, i);

    /* set ASRU to resource fmri */
    if (topo_prop_get_fmri(ntn, TOPO_PGROUP_PROTOCOL,
        TOPO_PROP_RESOURCE, &fmri, &e) == 0)
        (void) topo_node_asru_set(ntn, fmri, 0, &e);
    nvlist_free(fmri);

    if (topo_node_range_create(mod, ntn, XFP,
        0, XFP_MAX) < 0) {
        topo_node_unbind(ntn);
        topo_mod_dprintf(mod, "child_range_add of XFP"
            "failed: %s\n",
            topo_strerror(topo_mod_errno(mod)));
        return (NULL); /* mod_errno already set */
    }
    return (ntn);
}

static topo_mod_t *
xfp_enum_load(topo_mod_t *mp)
{
    topo_mod_t *rp = NULL;

    if ((rp = topo_mod_load(mp, XFP, TOPO_VERSION)) == NULL) {
        topo_mod_dprintf(mp,
            "%s enumerator could not load %s enum.\n", XAUI, XFP);
    }
    return (rp);
}
/*ARGSUSED*/
static int
xaui_enum(topo_mod_t *mod, tnode_t *rnode, const char *name,
    topo_instance_t min, topo_instance_t max, void *arg, void *notused)
{
    tnode_t *xauin;

    if (strcmp(name, XAUI) != 0) {
        topo_mod_dprintf(mod,
            "Currently only know how to enumerate %s components.\n",
            XAUI);
        return (0);
    }
    /*
     * Load XFP enum
     */
    if (xfp_enum_load(mod) == NULL)
        return (-1);

    if ((xauin = xaui_declare(rnode, name, min, arg, mod)) == NULL)
        return (-1);

    /* set the private data to be the instance number of niufn */
    if (topo_mod_enumerate(mod,
        xauin, XFP, XFP, 0, 0, NULL) != 0) {
        return (topo_mod_seterrno(mod, EMOD_PARTIAL_ENUM));
    }
    return (0);
}