OpenSolaris Launch

1 files changed, 309 insertions, 0 deletions

diff --git a/usr/src/lib/libdiskmgt/common/controller.c b/usr/src/lib/libdiskmgt/common/controller.c
new file mode 100644
index 0000000000..bde953f724
--- /dev/null
+++ b/usr/src/lib/libdiskmgt/common/controller.c
@@ -0,0 +1,309 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (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 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <fcntl.h>
+#include <libdevinfo.h>
+#include <stdlib.h>
+#include <sys/sunddi.h>
+#include <sys/types.h>
+#include <sys/scsi/conf/autoconf.h>
+
+#include "libdiskmgt.h"
+#include "disks_private.h"
+
+static descriptor_t	**get_assoc_buses(descriptor_t *desc, int *errp);
+static descriptor_t	**get_assoc_drives(descriptor_t *desc, int *errp);
+static descriptor_t	**get_assoc_paths(descriptor_t *desc, int *errp);
+
+descriptor_t **
+controller_get_assoc_descriptors(descriptor_t *desc, dm_desc_type_t type,
+    int *errp)
+{
+	switch (type) {
+	case DM_DRIVE:
+	    return (get_assoc_drives(desc, errp));
+	case DM_PATH:
+	    return (get_assoc_paths(desc, errp));
+	case DM_BUS:
+	    return (get_assoc_buses(desc, errp));
+	}
+
+	*errp = EINVAL;
+	return (NULL);
+}
+
+nvlist_t *
+controller_get_attributes(descriptor_t *dp, int *errp)
+{
+	controller_t	*cp;
+	nvlist_t	*attrs;
+
+	if (nvlist_alloc(&attrs, NVATTRS, 0) != 0) {
+	    *errp = ENOMEM;
+	    return (NULL);
+	}
+
+	cp = dp->p.controller;
+
+	if (nvlist_add_string(attrs, DM_CTYPE, cp->ctype) != 0) {
+	    nvlist_free(attrs);
+	    *errp = ENOMEM;
+	    return (NULL);
+	}
+
+	if (cp->multiplex) {
+	    if (nvlist_add_boolean(attrs, DM_MULTIPLEX) != 0) {
+		nvlist_free(attrs);
+		*errp = ENOMEM;
+		return (NULL);
+	    }
+	}
+
+	if (cp->scsi_options != -1) {
+	    if (cp->scsi_options & SCSI_OPTIONS_FAST) {
+		if (nvlist_add_boolean(attrs, DM_FAST) != 0) {
+		    nvlist_free(attrs);
+		    *errp = ENOMEM;
+		    return (NULL);
+		}
+	    }
+	    if (cp->scsi_options & SCSI_OPTIONS_WIDE) {
+		if (nvlist_add_boolean(attrs, DM_WIDE) != 0) {
+		    nvlist_free(attrs);
+		    *errp = ENOMEM;
+		    return (NULL);
+		}
+	    }
+	    if (cp->scsi_options & SCSI_OPTIONS_FAST20) {
+		if (nvlist_add_boolean(attrs, DM_FAST20) != 0) {
+		    nvlist_free(attrs);
+		    *errp = ENOMEM;
+		    return (NULL);
+		}
+	    }
+	    if (cp->scsi_options & SCSI_OPTIONS_FAST40) {
+		if (nvlist_add_boolean(attrs, DM_FAST40) != 0) {
+		    nvlist_free(attrs);
+		    *errp = ENOMEM;
+		    return (NULL);
+		}
+	    }
+	    if (cp->scsi_options & SCSI_OPTIONS_FAST80) {
+		if (nvlist_add_boolean(attrs, DM_FAST80) != 0) {
+		    nvlist_free(attrs);
+		    *errp = ENOMEM;
+		    return (NULL);
+		}
+	    }
+	}
+
+	if (cp->freq != 0) {
+	    if (nvlist_add_uint32(attrs, DM_CLOCK, cp->freq) != 0) {
+		nvlist_free(attrs);
+		*errp = ENOMEM;
+		return (NULL);
+	    }
+	}
+
+	*errp = 0;
+	return (attrs);
+}
+
+descriptor_t *
+controller_get_descriptor_by_name(char *name, int *errp)
+{
+	descriptor_t	**controllers;
+	int		i;
+	descriptor_t	*controller = NULL;
+
+	controllers = cache_get_descriptors(DM_CONTROLLER, errp);
+	if (*errp != 0) {
+	    return (NULL);
+	}
+
+	for (i = 0; controllers[i]; i++) {
+	    if (libdiskmgt_str_eq(name, controllers[i]->p.controller->name)) {
+		controller = controllers[i];
+	    } else {
+		/* clean up the unused descriptors */
+		cache_free_descriptor(controllers[i]);
+	    }
+	}
+	free(controllers);
+
+	if (controller == NULL) {
+	    *errp = ENODEV;
+	}
+
+	return (controller);
+}
+
+/* ARGSUSED */
+descriptor_t **
+controller_get_descriptors(int filter[], int *errp)
+{
+	return (cache_get_descriptors(DM_CONTROLLER, errp));
+}
+
+char *
+controller_get_name(descriptor_t *desc)
+{
+	return (desc->p.controller->name);
+}
+
+/* ARGSUSED */
+nvlist_t *
+controller_get_stats(descriptor_t *dp, int stat_type, int *errp)
+{
+	/* There are no stat types defined for controllers */
+	*errp = EINVAL;
+	return (NULL);
+}
+
+int
+controller_make_descriptors()
+{
+	int		error;
+	controller_t	*cp;
+
+	cp = cache_get_controllerlist();
+	while (cp != NULL) {
+	    cache_load_desc(DM_CONTROLLER, cp, NULL, NULL, &error);
+	    if (error != 0) {
+		return (error);
+	    }
+	    cp = cp->next;
+	}
+
+	return (0);
+}
+
+static descriptor_t **
+get_assoc_buses(descriptor_t *desc, int *errp)
+{
+	controller_t	*cp;
+	descriptor_t	**buses;
+	int		pos = 0;
+
+	cp = desc->p.controller;
+
+	/* make the snapshot */
+	buses = (descriptor_t **)calloc(2, sizeof (descriptor_t *));
+	if (buses == NULL) {
+	    *errp = ENOMEM;
+	    return (NULL);
+	}
+
+	if (cp->bus != NULL) {
+	    buses[pos++] = cache_get_desc(DM_BUS, cp->bus, NULL, NULL, errp);
+	    if (*errp != 0) {
+		cache_free_descriptors(buses);
+		return (NULL);
+	    }
+	}
+	buses[pos] = NULL;
+
+	*errp = 0;
+	return (buses);
+}
+
+static descriptor_t **
+get_assoc_drives(descriptor_t *desc, int *errp)
+{
+	controller_t	*cp;
+	descriptor_t	**drives;
+	int		cnt;
+	int		i;
+
+	cp = desc->p.controller;
+
+	/* Count how many we have. */
+	for (cnt = 0; cp->disks[cnt]; cnt++);
+
+	/* make the snapshot */
+	drives = (descriptor_t **)calloc(cnt + 1, sizeof (descriptor_t *));
+	if (drives == NULL) {
+	    *errp = ENOMEM;
+	    return (NULL);
+	}
+
+	for (i = 0; cp->disks[i]; i++) {
+	    drives[i] = cache_get_desc(DM_DRIVE, cp->disks[i], NULL, NULL,
+		errp);
+	    if (*errp != 0) {
+		cache_free_descriptors(drives);
+		return (NULL);
+	    }
+	}
+	drives[i] = NULL;
+
+	*errp = 0;
+	return (drives);
+}
+
+static descriptor_t **
+get_assoc_paths(descriptor_t *desc, int *errp)
+{
+	path_t		**pp;
+	int		cnt;
+	descriptor_t	**paths;
+	int		i;
+
+	pp = desc->p.controller->paths;
+
+	/* Count how many we have. */
+	cnt = 0;
+	if (pp != NULL) {
+	    for (; pp[cnt]; cnt++);
+	}
+
+	/* make the snapshot */
+	paths = (descriptor_t **)calloc(cnt + 1, sizeof (descriptor_t *));
+	if (paths == NULL) {
+	    *errp = ENOMEM;
+	    return (NULL);
+	}
+
+	/*
+	 * The name field of the descriptor is not filled in.  Thus, we
+	 * know not to try to lookup drive-path state information within
+	 * the path code if we try to get attributes for this descriptor.
+	 */
+	for (i = 0; i < cnt; i++) {
+	    paths[i] = cache_get_desc(DM_PATH, pp[i], NULL, NULL, errp);
+	    if (*errp != 0) {
+		cache_free_descriptors(paths);
+		return (NULL);
+	    }
+	}
+
+	paths[i] = NULL;
+
+	*errp = 0;
+	return (paths);
+}