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4039e22e46
If detect_scsi_host_caps reports errors but keeps libvirtd going on startup, the user is misled by the error messages. Transforming them into warning still shows the problems, but indicates this is not fatal.
148 lines
4.3 KiB
C
148 lines
4.3 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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VIR_LOG_INIT("node_device.node_device_linux_sysfs");
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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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if (virReadSCSIUniqueId(NULL, d->scsi_host.host,
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&d->scsi_host.unique_id) < 0) {
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VIR_DEBUG("Failed to read unique_id for host%d", d->scsi_host.host);
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d->scsi_host.unique_id = -1;
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}
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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_WARN("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_WARN("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_WARN("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_WARN("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_WARN("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_WARN("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_WARN("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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