xref: /illumos-gate/usr/src/lib/sun_sas/common/verify.c (revision 3ce5372277f4657ad0e52d36c979527c4ca22de2)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include <sun_sas.h>
28 #include <signal.h>
29 
30 /*
31  * Verify that a given adapter is present on the system.
32  * No checks will be performed on the targets, and it is assumed
33  * that an adapter can't change the number of ports it has.
34  */
35 HBA_STATUS
36 verifyAdapter(struct sun_sas_hba *hba_ptr) {
37 	const char	    ROUTINE[] = "verifyAdapter";
38 	char		    *charptr, path[MAXPATHLEN+1];
39 	di_node_t	    node;
40 	uint_t		    state;
41 
42 	/*
43 	 * valid test for a removed HBA.
44 	 */
45 	if (hba_ptr == NULL) {
46 	    log(LOG_DEBUG, ROUTINE, "Null hba_ptr argument");
47 	    return (HBA_STATUS_ERROR);
48 	}
49 	(void) strlcpy(path, hba_ptr->device_path, sizeof (path));
50 
51 	charptr = strrchr(path, ':');
52 	if (charptr) {
53 	    *charptr = '\0';
54 	}
55 
56 	errno = 0;
57 
58 	node = di_init(path, DINFOCPYALL);
59 	if (node == DI_NODE_NIL) {
60 		log(LOG_DEBUG, ROUTINE,
61 		    "Unable to take devinfo snapshot on HBA \"%s\" due to %s",
62 		    path, strerror(errno));
63 		return (HBA_STATUS_ERROR);
64 	} else {
65 		state = di_state(node);
66 		if (((state & DI_DRIVER_DETACHED) == DI_DRIVER_DETACHED) ||
67 		    ((state & DI_BUS_DOWN) == DI_BUS_DOWN) ||
68 		    ((state & DI_BUS_QUIESCED) == DI_BUS_QUIESCED)) {
69 			di_fini(node);
70 			log(LOG_DEBUG, ROUTINE,
71 			    "devinfo node is not online state: %d", state);
72 			return (HBA_STATUS_ERROR);
73 		}
74 	}
75 
76 	di_fini(node);
77 
78 	return (HBA_STATUS_OK);
79 }
80