common/fabric-xlate/fx_subr.c

/*
 * 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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
 */
#include <strings.h>
#include <fm/topo_hc.h>
#include <sys/fm/util.h>
#include <libxml/xpath.h>
#include <libxml/parser.h>
#include <libxml/xpathInternals.h>
#include <libxml/tree.h>

#include "fabric-xlate.h"

#define HAS_PROP(node, name) xmlHasProp(node, (const xmlChar *)name)
#define GET_PROP(node, name) ((char *)xmlGetProp(node, (const xmlChar *)name))
#define FREE_PROP(prop) xmlFree((xmlChar *)prop)

extern xmlXPathContextPtr fab_xpathCtx;

/* ARGSUSED */
int
fab_prep_basic_erpt(fmd_hdl_t *hdl, nvlist_t *nvl, nvlist_t *erpt,
    boolean_t isRC)
{
    uint64_t    *now;
    uint64_t    ena;
    uint_t      nelem;
    nvlist_t    *detector, *new_detector;
    char        rcpath[255];
    int     err = 0;

    /* Grab the tod, ena and detector(FMRI) */
    err |= nvlist_lookup_uint64_array(nvl, "__tod", &now, &nelem);
    err |= nvlist_lookup_uint64(nvl, "ena", &ena);
    err |= nvlist_lookup_nvlist(nvl, FM_EREPORT_DETECTOR, &detector);
    if (err)
        return (err);

    /* Make a copy of the detector */
    err = nvlist_dup(detector, &new_detector, NV_UNIQUE_NAME);
    if (err)
        return (err);

    /* Copy the tod and ena to erpt */
    (void) nvlist_add_uint64(erpt, FM_EREPORT_ENA, ena);
    (void) nvlist_add_uint64_array(erpt, "__tod", now, nelem);

    /*
     * Create the correct ROOT FMRI from PCIe leaf fabric ereports.  Used
     * only by fab_prep_fake_rc_erpt.  See the fab_pciex_fake_rc_erpt_tbl
     * comments for more information.
     */
    if (isRC && fab_get_rcpath(hdl, nvl, rcpath)) {
        /* Create the correct PCIe RC new_detector aka FMRI */
        (void) nvlist_remove(new_detector, FM_FMRI_DEV_PATH,
            DATA_TYPE_STRING);
        (void) nvlist_add_string(new_detector, FM_FMRI_DEV_PATH,
            rcpath);
    }

    /* Copy the FMRI to erpt */
    (void) nvlist_add_nvlist(erpt, FM_EREPORT_DETECTOR, new_detector);

    nvlist_free(new_detector);
    return (err);
}

void
fab_send_tgt_erpt(fmd_hdl_t *hdl, fab_data_t *data, const char *class,
    boolean_t isPrimary)
{
    nvlist_t    *nvl = data->nvl;
    nvlist_t    *erpt;
    char        *fmri = NULL;
    uint32_t    tgt_trans;
    uint64_t    tgt_addr;
    uint16_t    tgt_bdf;

    if (isPrimary) {
        tgt_trans = data->pcie_ue_tgt_trans;
        tgt_addr = data->pcie_ue_tgt_addr;
        tgt_bdf = data->pcie_ue_tgt_bdf;
    } else {
        tgt_trans = data->pcie_sue_tgt_trans;
        tgt_addr = data->pcie_sue_tgt_addr;
        tgt_bdf = data->pcie_sue_tgt_bdf;
    }

    fmd_hdl_debug(hdl, "Sending Target Ereport: "
        "type 0x%x addr 0x%llx fltbdf 0x%x\n",
        tgt_trans, tgt_addr, tgt_bdf);

    if (!tgt_trans)
        return;

    if ((tgt_trans == PF_ADDR_PIO) && tgt_addr)
        fmri = fab_find_addr(hdl, nvl, tgt_addr);
    else if ((tgt_trans == PF_ADDR_CFG || (tgt_trans == PF_ADDR_DMA)) &&
        tgt_bdf)
        fmri = fab_find_bdf(hdl, nvl, tgt_bdf);

    if (fmri) {
        uint64_t    *now;
        uint64_t    ena;
        uint_t      nelem;
        nvlist_t    *detector;
        int     err = 0;

        /* Allocate space for new erpt */
        if (nvlist_alloc(&erpt, NV_UNIQUE_NAME, 0) != 0)
            goto done;

        /* Generate the target ereport class */
        (void) snprintf(fab_buf, FM_MAX_CLASS, "ereport.io.%s.%s",
            PCI_ERROR_SUBCLASS, class);
        (void) nvlist_add_string(erpt, FM_CLASS, fab_buf);

        /* Grab the tod, ena and detector(FMRI) */
        err |= nvlist_lookup_uint64_array(nvl, "__tod", &now, &nelem);
        err |= nvlist_lookup_uint64(nvl, "ena", &ena);

        /* Copy the tod and ena to erpt */
        (void) nvlist_add_uint64(erpt, FM_EREPORT_ENA, ena);
        (void) nvlist_add_uint64_array(erpt, "__tod", now, nelem);

        /* Create the correct FMRI */
        if (nvlist_alloc(&detector, NV_UNIQUE_NAME, 0) != 0) {
            nvlist_free(erpt);
            goto done;
        }
        (void) nvlist_add_uint8(detector, FM_VERSION,
            FM_DEV_SCHEME_VERSION);
        (void) nvlist_add_string(detector, FM_FMRI_SCHEME,
            FM_FMRI_SCHEME_DEV);
        (void) nvlist_add_string(detector, FM_FMRI_DEV_PATH, fmri);
        (void) nvlist_add_nvlist(erpt, FM_EREPORT_DETECTOR, detector);
        nvlist_free(detector);

        /* Add the address payload */
        (void) nvlist_add_uint64(erpt, PCI_PA, tgt_addr);

        fmd_hdl_debug(hdl, "Sending target ereport: %s 0x%x\n",
            fab_buf, tgt_addr);
        fmd_xprt_post(hdl, fab_fmd_xprt, erpt, 0);
        if (fmd_xprt_error(hdl, fab_fmd_xprt))
            goto done;
        fmd_hdl_strfree(hdl, fmri);
    } else {
        fmd_hdl_debug(hdl,
            "Cannot find Target FMRI addr:0x%llx bdf 0x%x\n",
            tgt_addr, tgt_bdf);
    }

    return;
done:
    if (fmri)
        xmlFree(fmri);
    fmd_hdl_debug(hdl, "Failed to send Target PCI ereport\n");
}

void
fab_send_erpt(fmd_hdl_t *hdl, fab_data_t *data, fab_err_tbl_t *tbl)
{
    fab_erpt_tbl_t  *erpt_tbl, *entry;
    nvlist_t    *erpt;
    uint32_t    reg;

    erpt_tbl = tbl->erpt_tbl;
    if (tbl->reg_size == 16) {
        reg = (uint32_t)*((uint16_t *)
            ((uint32_t)data + tbl->reg_offset));
    } else {
        reg = *((uint32_t *)((uint32_t)data + tbl->reg_offset));
    }

    for (entry = erpt_tbl; entry->err_class; entry++) {
        if (!(reg & entry->reg_bit))
            continue;

        if (nvlist_alloc(&erpt, NV_UNIQUE_NAME, 0) != 0)
            goto done;
        if (tbl->fab_prep(hdl, data, erpt, entry) != 0) {
            fmd_hdl_debug(hdl, "Prepping ereport failed: "
                "class = %s\n", entry->err_class);
            nvlist_free(erpt);
            continue;
        }

        if (data->pcie_rp_send_all) {
            fab_send_erpt_all_rps(hdl, erpt);
            nvlist_free(erpt);
            return;
        }

        fmd_hdl_debug(hdl, "Sending ereport: %s 0x%x\n", fab_buf, reg);
        fmd_xprt_post(hdl, fab_fmd_xprt, erpt, 0);
        if (fmd_xprt_error(hdl, fab_fmd_xprt)) {
            fmd_hdl_debug(hdl, "Failed to send PCI ereport\n");
            return;
        }
    }

    return;
done:
    fmd_hdl_debug(hdl, "Failed  to send PCI ereport\n");
}

char *
fab_xpath_query(fmd_hdl_t *hdl, const char *query)
{
    xmlXPathObjectPtr xpathObj;
    xmlNodeSetPtr nodes;
    char *temp, *res;

    fmd_hdl_debug(hdl, "xpathObj query %s\n", query);

    xpathObj = xmlXPathEvalExpression((const xmlChar *)query,
        fab_xpathCtx);

    if (xpathObj == NULL)
        return (NULL);

    fmd_hdl_debug(hdl, "xpathObj 0x%p type %d\n", xpathObj,
        xpathObj->type);
    nodes = xpathObj->nodesetval;

    if (nodes) {
        temp = (char *)xmlNodeGetContent(nodes->nodeTab[0]);
        fmd_hdl_debug(hdl, "query result: %s\n", temp);
        res = fmd_hdl_strdup(hdl, temp, FMD_SLEEP);
        xmlFree(temp);
        xmlXPathFreeObject(xpathObj);
        return (res);
    }
    xmlXPathFreeObject(xpathObj);
    return (NULL);
}

#define FAB_HC2DEV_QUERY_SIZE_MIN 160
#define FAB_HC2DEV_QUERY_SIZE(sz) \
    ((sz + FAB_HC2DEV_QUERY_SIZE_MIN) * sizeof (char))

/*
 * hc_path is in form of "/motherboard=0/hostbridge=0/pciexrc=0"
 */
boolean_t
fab_hc2dev(fmd_hdl_t *hdl, const char *hc_path, char **dev_path)
{
    char *query;
    uint_t len = FAB_HC2DEV_QUERY_SIZE_MIN + strlen(hc_path);

    query = fmd_hdl_alloc(hdl, len, FMD_SLEEP);
    (void) snprintf(query, len, "//propval[@name='resource' and contains("
        "substring(@value, string-length(@value) - %d + 1), '%s')]"
        "/parent::*/following-sibling::*/propval[@name='dev']/@value",
        strlen(hc_path) + 1, hc_path);

    *dev_path = fab_xpath_query(hdl, query);

    fmd_hdl_free(hdl, query, len);

    return (*dev_path != NULL);
}

static boolean_t
fab_hc_path(fmd_hdl_t *hdl, nvlist_t *detector, char **hcpath, size_t *lenp)
{
    char c, *name, *id, *buf;
    uint_t i, size;
    nvlist_t **hcl;
    size_t len = 0, buf_size = 0;

    if (nvlist_lookup_nvlist_array(detector, FM_FMRI_HC_LIST, &hcl,
        &size) != 0)
        return (B_FALSE);

    for (i = 0; i < size; i++) {
        if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME, &name) != 0)
            return (B_FALSE);
        if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &id) != 0)
            return (B_FALSE);
        buf_size += snprintf(&c, 1, "/%s=%s", name, id);
    }

    buf_size++;
    buf = fmd_hdl_alloc(hdl, buf_size, FMD_SLEEP);

    for (i = 0; i < size; i++) {
        (void) nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME, &name);
        (void) nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &id);
        len += snprintf(buf + len, buf_size - len, "/%s=%s", name, id);
    }

    *hcpath = buf;
    *lenp = buf_size;

    return (B_TRUE);
}

boolean_t
fab_hc2dev_nvl(fmd_hdl_t *hdl, nvlist_t *detector, char **dev_path)
{
    char *hcl;
    size_t len;

    if (! fab_hc_path(hdl, detector, &hcl, &len))
        return (B_FALSE);

    (void) fab_hc2dev(hdl, hcl, dev_path);

    fmd_hdl_free(hdl, hcl, len);

    return (*dev_path != NULL);
}

boolean_t
fab_get_hcpath(fmd_hdl_t *hdl, nvlist_t *nvl, char **hcpath, size_t *len)
{
    nvlist_t *detector;
    char *scheme;

    if (nvlist_lookup_nvlist(nvl, FM_EREPORT_DETECTOR, &detector) != 0 ||
        nvlist_lookup_string(detector, FM_FMRI_SCHEME, &scheme) != 0 ||
        ! STRCMP(scheme, FM_FMRI_SCHEME_HC))
        return (B_FALSE);

    return (fab_hc_path(hdl, detector, hcpath, len));
}

char *
fab_find_rppath_by_df(fmd_hdl_t *hdl, nvlist_t *nvl, uint8_t df)
{
    char    query[500];
    char    str[10];
    char    *hcpath;
    size_t  len;

    (void) snprintf(str, sizeof (str), "%0hhx", df);

    /*
     * get the string form of the hc detector, eg
     * /chassis=0/motherboard=0/hostbridge=0
     */
    if (!fab_get_hcpath(hdl, nvl, &hcpath, &len))
        return (NULL);

    /*
     * Explanation of the XSL XPATH Query
     * Line 1: Look at all nodes with the node name "propval"
     * Line 2: See if the "BDF" of the node matches DF
     * Line 3-4: See if the the node is pciexrc
     * Line 5-6: See if the "ASRU" contains root complex
     * Line 7-8: Go up one level and get prop value of io/dev
     */
    (void) snprintf(query, sizeof (query), "//propval["
        "@name='BDF' and contains(substring(@value, "
        "string-length(@value) - 1), '%s')]"
        "/parent::*/parent::*/propgroup[@name='pci']/propval"
        "[@name='extended-capabilities' and @value='%s']"
        "/parent::*/parent::*/propgroup[@name='protocol']"
        "/propval[@name='resource' and contains(@value, '%s')]"
        "/parent::*/parent::*/propgroup[@name='io']"
        "/propval[@name='dev']/@value", str, PCIEX_ROOT, hcpath);

    fmd_hdl_free(hdl, hcpath, len);

    return (fab_xpath_query(hdl, query));
}

char *
fab_find_rppath_by_devbdf(fmd_hdl_t *hdl, nvlist_t *nvl, pcie_req_id_t bdf)
{
    xmlXPathObjectPtr xpathObj;
    xmlNodeSetPtr nodes;
    xmlNodePtr devNode;
    char    *retval, *temp;
    char    query[500];
    int i, size, bus, dev, fn;
    char    *hcpath;
    size_t  len;

    if (bdf != (uint16_t)-1) {
        bus = (bdf & PCIE_REQ_ID_BUS_MASK) >> PCIE_REQ_ID_BUS_SHIFT;
        dev = (bdf & PCIE_REQ_ID_DEV_MASK) >> PCIE_REQ_ID_DEV_SHIFT;
        fn = (bdf & PCIE_REQ_ID_FUNC_MASK) >> PCIE_REQ_ID_FUNC_SHIFT;
    }

    /*
     * get the string form of the hc detector, eg
     * /chassis=0/motherboard=0/hostbridge=0
     */
    if (!fab_get_hcpath(hdl, nvl, &hcpath, &len))
        goto fail;

    /*
     * Explanation of the XSL XPATH Query
     * Line 1: Look at all nodes with the node name "propval"
     * Line 2-3: See if the "value" of the node ends with correct PCIEx BDF
     * Line 4-5: See if the "value" of the node ends with correct PCI BDF
     * Line 6: Go up one level to the parent of the current node
     * Line 7: See if child node contains "ASRU" with the same PCIe Root
     * Line 8: Go up see all the ancestors
     */
    (void) snprintf(query, sizeof (query), "//propval["
        "contains(substring(@value, string-length(@value) - 34), "
        "'pciexbus=%d/pciexdev=%d/pciexfn=%d') or "
        "contains(substring(@value, string-length(@value) - 28), "
        "'pcibus=%d/pcidev=%d/pcifn=%d')"
        "]/parent::"
        "*/propval[@name='resource' and contains(@value, '%s')]"
        "/ancestor::*",
        bus, dev, fn, bus, dev, fn, hcpath);

    fmd_hdl_free(hdl, hcpath, len);

    fmd_hdl_debug(hdl, "xpathObj query %s\n", query);

    xpathObj = xmlXPathEvalExpression((const xmlChar *)query, fab_xpathCtx);

    if (xpathObj == NULL)
        goto fail;

    nodes = xpathObj->nodesetval;
    size = (nodes) ? nodes->nodeNr : 0;

    fmd_hdl_debug(hdl, "xpathObj 0x%p type %d size %d\n",
        xpathObj, xpathObj->type, size);

    for (i = 0; i < size; i++) {
        devNode = nodes->nodeTab[i];
        if (STRCMP(devNode->name, "range") &&
            HAS_PROP(devNode, "name")) {
            char *tprop = GET_PROP(devNode, "name");

            /* find "range name='pciexrc'" in ancestors */
            if (STRCMP(tprop, PCIEX_ROOT)) {
                /* go down to the pciexrc instance node */
                FREE_PROP(tprop);
                devNode = nodes->nodeTab[i+1];
                goto found;
            }
            FREE_PROP(tprop);
        }
    }
    goto fail;

found:
    /* Traverse down the xml tree to find the right propgroup */
    for (devNode = devNode->children; devNode; devNode = devNode->next) {
        if (STRCMP(devNode->name, "propgroup")) {
            char *tprop = GET_PROP(devNode, "name");

            if (STRCMP(tprop, "io")) {
                FREE_PROP(tprop);
                goto propgroup;
            }
            FREE_PROP(tprop);
        }
    }
    goto fail;

propgroup:
    /* Retrive the "dev" propval and return */
    for (devNode = devNode->children; devNode; devNode = devNode->next) {
        if (STRCMP(devNode->name, "propval")) {
            char *tprop = GET_PROP(devNode, "name");

            if (STRCMP(tprop, "dev")) {
                temp = GET_PROP(devNode, "value");
                retval = fmd_hdl_strdup(hdl, temp, FMD_SLEEP);
                fmd_hdl_debug(hdl, "RP Path: %s\n", retval);
                xmlFree(temp);
                xmlXPathFreeObject(xpathObj);
            }
            FREE_PROP(tprop);

            return (retval);
        }
    }
fail:
    if (xpathObj != NULL)
        xmlXPathFreeObject(xpathObj);
    return (NULL);
}

char *
fab_find_rppath_by_devpath(fmd_hdl_t *hdl, const char *devpath)
{
    char    query[500];

    /*
     * Explanation of the XSL XPATH Query
     * Line 1: Look at all nodes with the node name "propval"
     * Line 2: See if the node is pciexrc
     * Line 3: Go up to the io pgroup
     * Line 4: See if the "dev" prop is parent of devpath
     * Line 5: Get the 'dev' prop
     */
    (void) snprintf(query, sizeof (query), "//propval"
        "[@name='extended-capabilities' and @value='%s']"
        "/parent::*/parent::*/propgroup[@name='io']"
        "/propval[@name='dev' and starts-with('%s', concat(@value, '/'))]"
        "/@value", PCIEX_ROOT, devpath);

    return (fab_xpath_query(hdl, query));
}

/* ARGSUSED */
boolean_t
fab_get_rcpath(fmd_hdl_t *hdl, nvlist_t *nvl, char *rcpath)
{
    nvlist_t    *detector;
    char        *path, *scheme;

    if (nvlist_lookup_nvlist(nvl, FM_EREPORT_DETECTOR, &detector) != 0)
        goto fail;
    if (nvlist_lookup_string(detector, FM_FMRI_SCHEME, &scheme) != 0)
        goto fail;

    if (STRCMP(scheme, FM_FMRI_SCHEME_DEV)) {
        if (nvlist_lookup_string(detector, FM_FMRI_DEV_PATH,
            &path) != 0)
            goto fail;
        (void) strncpy(rcpath, path, FM_MAX_CLASS);
    } else if (STRCMP(scheme, FM_FMRI_SCHEME_HC)) {
        /*
         * This should only occur for ereports that come from the RC
         * itself.  In this case convert HC scheme to dev path.
         */
        if (fab_hc2dev_nvl(hdl, detector, &path)) {
            (void) strncpy(rcpath, path, FM_MAX_CLASS);
            fmd_hdl_strfree(hdl, path);
        } else {
            goto fail;
        }
    } else {
        return (B_FALSE);
    }

    /*
     * Extract the RC path by taking the first device in the dev path
     *
     * /pci@0,0/pci8086,3605@2/pci8086,3500@0/pci8086,3514@1/pci8086,105e@0
     * - to -
     * /pci@0,0
     */
    path = strchr(rcpath + 1, '/');
    if (path)
        path[0] = '\0';

    return (B_TRUE);
fail:
    return (B_FALSE);
}

char *
fab_find_bdf(fmd_hdl_t *hdl, nvlist_t *nvl, pcie_req_id_t bdf)
{
    char    *retval;
    char    query[500];
    int bus, dev, fn;
    char    rcpath[255];

    if (bdf != (uint16_t)-1) {
        bus = (bdf & PCIE_REQ_ID_BUS_MASK) >> PCIE_REQ_ID_BUS_SHIFT;
        dev = (bdf & PCIE_REQ_ID_DEV_MASK) >> PCIE_REQ_ID_DEV_SHIFT;
        fn = (bdf & PCIE_REQ_ID_FUNC_MASK) >> PCIE_REQ_ID_FUNC_SHIFT;
    }

    if (!fab_get_rcpath(hdl, nvl, rcpath))
        goto fail;

    /*
     * Explanation of the XSL XPATH Query
     * Line 1: Look at all nodes with the node name "propval"
     * Line 2-3: See if the "value" of the node ends with correct PCIEx BDF
     * Line 4-5: See if the "value" of the node ends with correct PCI BDF
     * Line 6: Go up one level to the parent of the current node
     * Line 7: See if child node contains "ASRU" with the same PCIe Root
     * Line 8: Traverse up the parent and the other siblings and look for
     *     the io "propgroup" and get the value of the dev "propval"
     */
    (void) snprintf(query, sizeof (query), "//propval["
        "contains(substring(@value, string-length(@value) - 34), "
        "'pciexbus=%d/pciexdev=%d/pciexfn=%d') or "
        "contains(substring(@value, string-length(@value) - 28), "
        "'pcibus=%d/pcidev=%d/pcifn=%d')"
        "]/parent::"
        "*/propval[@name='ASRU' and contains(@value, '%s')]"
        "/parent::*/following-sibling::*[@name='io']/propval[@name='dev']/"
        "@value", bus, dev, fn, bus, dev, fn, rcpath);

    retval = fab_xpath_query(hdl, query);
    if (retval) {
        fmd_hdl_debug(hdl, "BDF Dev Path: %s\n", retval);
        return (retval);
    }
fail:
    return (NULL);
}

char *
fab_find_addr(fmd_hdl_t *hdl, nvlist_t *nvl, uint64_t addr)
{
    xmlXPathObjectPtr xpathObj;
    xmlNodeSetPtr nodes;
    xmlNodePtr devNode;
    char *retval, *temp;
    char query[500];
    int size, i, j;
    uint32_t prop[50];
    char *token;
    pci_regspec_t *assign_p;
    uint64_t low, hi;
    char rcpath[255];

    if (!fab_get_rcpath(hdl, nvl, rcpath))
        goto fail;

    (void) snprintf(query, sizeof (query), "//propval["
        "@name='ASRU' and contains(@value, '%s')]/"
        "parent::*/following-sibling::*[@name='pci']/"
        "propval[@name='assigned-addresses']", rcpath);

    fmd_hdl_debug(hdl, "xpathObj query %s\n", query);

    xpathObj = xmlXPathEvalExpression((const xmlChar *)query, fab_xpathCtx);

    if (xpathObj == NULL)
        goto fail;

    fmd_hdl_debug(hdl, "xpathObj 0x%p type %d\n", xpathObj, xpathObj->type);

    nodes = xpathObj->nodesetval;
    size = (nodes) ? nodes->nodeNr : 0;

    /* Decode the list of assigned addresses xml nodes for each device */
    for (i = 0; i < size; i++) {
        char *tprop;

        devNode = nodes->nodeTab[i];
        if (!HAS_PROP(devNode, "value"))
            continue;

        /* Convert "string" assigned-addresses to pci_regspec_t */
        j = 0;
        tprop = GET_PROP(devNode, "value");
        for (token = strtok(tprop, " "); token;
            token = strtok(NULL, " ")) {
            prop[j++] = strtoul(token, (char **)NULL, 16);
        }
        prop[j] = (uint32_t)-1;
        FREE_PROP(tprop);

        /* Check if address belongs to this device */
        for (assign_p = (pci_regspec_t *)prop;
            assign_p->pci_phys_hi != (uint_t)-1; assign_p++) {
            low = assign_p->pci_phys_low;
            hi = low + assign_p->pci_size_low;
            if ((addr < hi) && (addr >= low)) {
                fmd_hdl_debug(hdl, "Found Address\n");
                goto found;
            }
        }
    }
    goto fail;

found:
    /* Traverse up the xml tree and back down to find the right propgroup */
    for (devNode = devNode->parent->parent->children;
        devNode; devNode = devNode->next) {
        char    *tprop;

        tprop = GET_PROP(devNode, "name");
        if (STRCMP(devNode->name, "propgroup") &&
            STRCMP(tprop, "io")) {
            FREE_PROP(tprop);
            goto propgroup;
        }
        FREE_PROP(tprop);
    }
    goto fail;

propgroup:
    /* Retrive the "dev" propval and return */
    for (devNode = devNode->children; devNode; devNode = devNode->next) {
        char    *tprop;

        tprop = GET_PROP(devNode, "name");
        if (STRCMP(devNode->name, "propval") &&
            STRCMP(tprop, "dev")) {
            FREE_PROP(tprop);
            temp = GET_PROP(devNode, "value");
            retval = fmd_hdl_strdup(hdl, temp, FMD_SLEEP);
            fmd_hdl_debug(hdl, "Addr Dev Path: %s\n", retval);
            xmlFree(temp);
            xmlXPathFreeObject(xpathObj);
            return (retval);
        }
        FREE_PROP(tprop);
    }
fail:
    if (xpathObj != NULL)
        xmlXPathFreeObject(xpathObj);
    return (NULL);
}

void
fab_pr(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl)
{
    nvpair_t *nvp;

    for (nvp = nvlist_next_nvpair(nvl, NULL);
        nvp != NULL;
        nvp = nvlist_next_nvpair(nvl, nvp)) {

        data_type_t type = nvpair_type(nvp);
        const char *name = nvpair_name(nvp);

        boolean_t b;
        uint8_t i8;
        uint16_t i16;
        uint32_t i32;
        uint64_t i64;
        char *str;
        nvlist_t *cnv;

        nvlist_t **nvlarr;
        uint_t arrsize;
        int arri;


        if (STRCMP(name, FM_CLASS))
            continue; /* already printed by caller */

        fmd_hdl_debug(hdl, " %s=", name);

        switch (type) {
        case DATA_TYPE_BOOLEAN:
            fmd_hdl_debug(hdl, "DATA_TYPE_BOOLEAN 1");
            break;

        case DATA_TYPE_BOOLEAN_VALUE:
            (void) nvpair_value_boolean_value(nvp, &b);
            fmd_hdl_debug(hdl, "DATA_TYPE_BOOLEAN_VALUE %d",
                b ? "1" : "0");
            break;

        case DATA_TYPE_BYTE:
            (void) nvpair_value_byte(nvp, &i8);
            fmd_hdl_debug(hdl, "DATA_TYPE_BYTE 0x%x", i8);
            break;

        case DATA_TYPE_INT8:
            (void) nvpair_value_int8(nvp, (void *)&i8);
            fmd_hdl_debug(hdl, "DATA_TYPE_INT8 0x%x", i8);
            break;

        case DATA_TYPE_UINT8:
            (void) nvpair_value_uint8(nvp, &i8);
            fmd_hdl_debug(hdl, "DATA_TYPE_UINT8 0x%x", i8);
            break;

        case DATA_TYPE_INT16:
            (void) nvpair_value_int16(nvp, (void *)&i16);
            fmd_hdl_debug(hdl, "DATA_TYPE_INT16 0x%x", i16);
            break;

        case DATA_TYPE_UINT16:
            (void) nvpair_value_uint16(nvp, &i16);
            fmd_hdl_debug(hdl, "DATA_TYPE_UINT16 0x%x", i16);
            break;

        case DATA_TYPE_INT32:
            (void) nvpair_value_int32(nvp, (void *)&i32);
            fmd_hdl_debug(hdl, "DATA_TYPE_INT32 0x%x", i32);
            break;

        case DATA_TYPE_UINT32:
            (void) nvpair_value_uint32(nvp, &i32);
            fmd_hdl_debug(hdl, "DATA_TYPE_UINT32 0x%x", i32);
            break;

        case DATA_TYPE_INT64:
            (void) nvpair_value_int64(nvp, (void *)&i64);
            fmd_hdl_debug(hdl, "DATA_TYPE_INT64 0x%llx",
                (u_longlong_t)i64);
            break;

        case DATA_TYPE_UINT64:
            (void) nvpair_value_uint64(nvp, &i64);
            fmd_hdl_debug(hdl, "DATA_TYPE_UINT64 0x%llx",
                (u_longlong_t)i64);
            break;

        case DATA_TYPE_HRTIME:
            (void) nvpair_value_hrtime(nvp, (void *)&i64);
            fmd_hdl_debug(hdl, "DATA_TYPE_HRTIME 0x%llx",
                (u_longlong_t)i64);
            break;

        case DATA_TYPE_STRING:
            (void) nvpair_value_string(nvp, &str);
            fmd_hdl_debug(hdl, "DATA_TYPE_STRING \"%s\"",
                str ? str : "<NULL>");
            break;

        case DATA_TYPE_NVLIST:
            fmd_hdl_debug(hdl, "[");
            (void) nvpair_value_nvlist(nvp, &cnv);
            fab_pr(hdl, NULL, cnv);
            fmd_hdl_debug(hdl, " ]");
            break;

        case DATA_TYPE_BOOLEAN_ARRAY:
        case DATA_TYPE_BYTE_ARRAY:
        case DATA_TYPE_INT8_ARRAY:
        case DATA_TYPE_UINT8_ARRAY:
        case DATA_TYPE_INT16_ARRAY:
        case DATA_TYPE_UINT16_ARRAY:
        case DATA_TYPE_INT32_ARRAY:
        case DATA_TYPE_UINT32_ARRAY:
        case DATA_TYPE_INT64_ARRAY:
        case DATA_TYPE_UINT64_ARRAY:
        case DATA_TYPE_STRING_ARRAY:
            fmd_hdl_debug(hdl, "[...]");
            break;
        case DATA_TYPE_NVLIST_ARRAY:
            arrsize = 0;
            (void) nvpair_value_nvlist_array(nvp, &nvlarr,
                &arrsize);

            for (arri = 0; arri < arrsize; arri++) {
                fab_pr(hdl, ep, nvlarr[arri]);
            }

            break;
        case DATA_TYPE_UNKNOWN:
            fmd_hdl_debug(hdl, "<unknown>");
            break;
        }
    }
}

char *
fab_get_rpdev(fmd_hdl_t *hdl)
{
    char    *retval;
    char    query[500];

    (void) snprintf(query, sizeof (query), "//propval["
        "@name='extended-capabilities' and contains(@value, '%s')]"
        "/parent::*/parent::*/propgroup[@name='io']"
        "/propval[@name='dev']/@value", PCIEX_ROOT);

    retval = fab_xpath_query(hdl, query);
    if (retval) {
        fmd_hdl_debug(hdl, "Root port path is %s\n", retval);
        return (retval);
    }

    return (NULL);
}

void
fab_send_erpt_all_rps(fmd_hdl_t *hdl, nvlist_t *erpt)
{
    xmlXPathObjectPtr xpathObj;
    xmlNodeSetPtr nodes;
    char    *rppath, *hbpath;
    char    query[600];
    nvlist_t *detector, *nvl;
    uint_t  i, size;
    size_t len;

    /* get hostbridge's path */
    if (!fab_get_hcpath(hdl, erpt, &hbpath, &len)) {
        fmd_hdl_debug(hdl,
            "fab_send_erpt_on_all_rps: fab_get_hcpath() failed.\n");
        return;
    }

    (void) snprintf(query, sizeof (query), "//propval["
        "@name='extended-capabilities' and contains(@value, '%s')]"
        "/parent::*/parent::*/propgroup[@name='protocol']"
        "/propval[@name='resource' and contains(@value, '%s/')"
        "]/parent::*/parent::*/propgroup[@name='io']"
        "/propval[@name='dev']/@value", PCIEX_ROOT, hbpath);

    fmd_hdl_free(hdl, hbpath, len);

    fmd_hdl_debug(hdl, "xpathObj query %s\n", query);

    xpathObj = xmlXPathEvalExpression((const xmlChar *)query, fab_xpathCtx);

    if (xpathObj == NULL)
        return;

    nodes = xpathObj->nodesetval;
    size = (nodes) ? nodes->nodeNr : 0;

    fmd_hdl_debug(hdl, "xpathObj 0x%p type %d size %d\n",
        xpathObj, xpathObj->type, size);

    for (i = 0; i < size; i++) {
        rppath = (char *)xmlNodeGetContent(nodes->nodeTab[i]);
        fmd_hdl_debug(hdl, "query result: %s\n", rppath);

        nvl = detector = NULL;
        if (nvlist_dup(erpt, &nvl, NV_UNIQUE_NAME) != 0 ||
            nvlist_alloc(&detector, NV_UNIQUE_NAME, 0) != 0) {
            xmlFree(rppath);
            nvlist_free(nvl);
            continue;
        }

        /*
         * set the detector in the original ereport to the root port
         */
        (void) nvlist_add_string(detector, FM_VERSION,
            FM_DEV_SCHEME_VERSION);
        (void) nvlist_add_string(detector, FM_FMRI_SCHEME,
            FM_FMRI_SCHEME_DEV);
        (void) nvlist_add_string(detector, FM_FMRI_DEV_PATH,
            rppath);
        (void) nvlist_remove_all(nvl, FM_EREPORT_DETECTOR);
        (void) nvlist_add_nvlist(nvl, FM_EREPORT_DETECTOR,
            detector);
        nvlist_free(detector);
        xmlFree(rppath);

        fmd_hdl_debug(hdl, "Sending ereport: %s\n", fab_buf);
        fmd_xprt_post(hdl, fab_fmd_xprt, nvl, 0);
        if (fmd_xprt_error(hdl, fab_fmd_xprt))
            fmd_hdl_debug(hdl,
                "Failed to send PCI ereport\n");
    }

    xmlXPathFreeObject(xpathObj);
}