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371c15517c
Use the host number as the host number when constructing the sysfs path instead of the variable we are trying to fill. https://bugzilla.redhat.com/show_bug.cgi?id=973543
140 lines
4.1 KiB
C
140 lines
4.1 KiB
C
/*
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* node_device_linux_sysfs.c: Linux specific code to gather device data
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* not available through HAL.
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*
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* Copyright (C) 2009-2013 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#include <config.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include "node_device_driver.h"
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#include "node_device_hal.h"
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#include "virerror.h"
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#include "viralloc.h"
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#include "virlog.h"
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#include "virfile.h"
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#include "virstring.h"
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#define VIR_FROM_THIS VIR_FROM_NODEDEV
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#ifdef __linux__
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int
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detect_scsi_host_caps(union _virNodeDevCapData *d)
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{
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char *max_vports = NULL;
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char *vports = NULL;
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int ret = -1;
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VIR_DEBUG("Checking if host%d is an FC HBA", d->scsi_host.host);
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if (virIsCapableFCHost(NULL, d->scsi_host.host)) {
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d->scsi_host.flags |= VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST;
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if (virReadFCHost(NULL,
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d->scsi_host.host,
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"port_name",
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&d->scsi_host.wwpn) < 0) {
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VIR_ERROR(_("Failed to read WWPN for host%d"), d->scsi_host.host);
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goto cleanup;
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}
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if (virReadFCHost(NULL,
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d->scsi_host.host,
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"node_name",
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&d->scsi_host.wwnn) < 0) {
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VIR_ERROR(_("Failed to read WWNN for host%d"), d->scsi_host.host);
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goto cleanup;
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}
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if (virReadFCHost(NULL,
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d->scsi_host.host,
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"fabric_name",
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&d->scsi_host.fabric_wwn) < 0) {
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VIR_ERROR(_("Failed to read fabric WWN for host%d"),
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d->scsi_host.host);
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goto cleanup;
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}
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}
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if (virIsCapableVport(NULL, d->scsi_host.host)) {
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d->scsi_host.flags |= VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS;
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if (virReadFCHost(NULL,
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d->scsi_host.host,
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"max_npiv_vports",
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&max_vports) < 0) {
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VIR_ERROR(_("Failed to read max_npiv_vports for host%d"),
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d->scsi_host.host);
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goto cleanup;
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}
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if (virReadFCHost(NULL,
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d->scsi_host.host,
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"npiv_vports_inuse",
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&vports) < 0) {
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VIR_ERROR(_("Failed to read npiv_vports_inuse for host%d"),
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d->scsi_host.host);
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goto cleanup;
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}
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if (virStrToLong_i(max_vports, NULL, 10,
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&d->scsi_host.max_vports) < 0) {
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VIR_ERROR(_("Failed to parse value of max_npiv_vports '%s'"),
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max_vports);
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goto cleanup;
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}
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if (virStrToLong_i(vports, NULL, 10,
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&d->scsi_host.vports) < 0) {
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VIR_ERROR(_("Failed to parse value of npiv_vports_inuse '%s'"),
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vports);
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goto cleanup;
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}
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}
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ret = 0;
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cleanup:
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if (ret < 0) {
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/* Clear the two flags in case of producing confusing XML output */
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d->scsi_host.flags &= ~(VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST |
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VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS);
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VIR_FREE(d->scsi_host.wwnn);
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VIR_FREE(d->scsi_host.wwpn);
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VIR_FREE(d->scsi_host.fabric_wwn);
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}
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VIR_FREE(max_vports);
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VIR_FREE(vports);
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return ret;
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}
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#else
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int
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detect_scsi_host_caps(union _virNodeDevCapData *d ATTRIBUTE_UNUSED)
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{
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return -1;
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}
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#endif /* __linux__ */
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