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 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26
27
28#include "Trace.h"
29#include "Exceptions.h"
30#include "sun_fc.h"
31
32
33
34#include <string.h>
35#include "Handle.h"
36#include "HBA.h"
37#include "HBAPort.h"
38inline HBA_WWN
39getAdapterPortWWN(HBA_HANDLE handle,HBA_UINT32 index) {
40	HBA_WWN hba_wwn;
41	memset(hba_wwn.wwn, 0, sizeof (hba_wwn));
42	try {
43	    Handle *myHandle = Handle::findHandle(handle);
44	    HBA *hba = myHandle->getHBA();
45		HBAPort *port = hba->getPortByIndex(index);
46	    uint64_t tmp = htonll(port->getPortWWN());
47	    memcpy(hba_wwn.wwn, &tmp, sizeof (hba_wwn));
48	} catch (...) { }
49	return (hba_wwn);
50}
51
52#ifdef	__cplusplus
53extern "C" {
54#endif
55
56/**
57 * @memo	    Retrieves the mapping between FCP targets and OS
58 *		    SCSI information
59 * @return	    HBA_STATUS_OK if the mapping structure contains valid
60 *		    mapping data.
61 * @param	    handle The HBA to fetch mappings for
62 * @param	    mapping The user-allocated mapping structure
63 *
64 * @doc		    This routine will call the V2 interface and convert
65 *		    the results to the old data structure.  It will
66 *		    call the V2 interface for all ports on the HBA.
67 */
68HBA_STATUS
69Sun_fcGetFcpTargetMapping(HBA_HANDLE handle, PHBA_FCPTARGETMAPPING mapping) {
70	HBA_STATUS		    status;
71	int			    count;
72	PHBA_FCPTARGETMAPPINGV2	    mappingV2;
73	HBA_ADAPTERATTRIBUTES       attributes;
74	HBA_UINT32                  entries = 0;
75	HBA_UINT32                  current = 0;
76	HBA_UINT32                  port;
77	HBA_UINT32                  limit;
78
79	Trace log("Sun_fcGetFcpTargetMapping");
80
81	if (mapping == NULL) {
82	    log.userError("NULL mapping argument.");
83	    return (HBA_STATUS_ERROR_ARG);
84	}
85
86	entries = mapping->NumberOfEntries;
87
88	/* get adapter attributes for number of ports */
89	status = Sun_fcGetAdapterAttributes(handle,&attributes);
90	if (status != HBA_STATUS_OK) {
91		log.userError("Unable to get adapter attributes");
92		return HBA_STATUS_ERROR;
93	}
94
95	mappingV2 = (PHBA_FCPTARGETMAPPINGV2) new uchar_t[
96	    (sizeof (HBA_FCPSCSIENTRYV2)*(mapping->NumberOfEntries-1)) +
97	    sizeof (HBA_FCPTARGETMAPPINGV2)];
98	mapping->NumberOfEntries = 0;
99
100	for(port = 0; port < attributes.NumberOfPorts; port++) {
101		mappingV2->NumberOfEntries = mapping->NumberOfEntries < entries ?
102		    entries - mapping->NumberOfEntries : 0 ;
103		status = Sun_fcGetFcpTargetMappingV2(handle,
104			getAdapterPortWWN(handle,port), mappingV2);
105		mapping->NumberOfEntries += mappingV2->NumberOfEntries;
106
107		if (status != HBA_STATUS_OK && status != HBA_STATUS_ERROR_MORE_DATA) {
108				log.userError("Unable to get mappings for port");
109				return status;
110		}
111		/*
112		 * need to copy from PHBA_FCPTARGETMAPPINGV2 to
113		 * PHBA_FCPTARGETMAPPING
114		 */
115		limit = (mapping->NumberOfEntries < entries) ? mapping->NumberOfEntries : entries;
116		for (count = current; count < limit; count++) {
117			memcpy(&mapping->entry[count].ScsiId,
118				&mappingV2->entry[count-current].ScsiId,
119			    sizeof (mapping->entry[count].ScsiId));
120			memcpy(&mapping->entry[count].FcpId,
121				&mappingV2->entry[count-current].FcpId,
122			    sizeof (mapping->entry[count].FcpId));
123		}
124		current = mapping->NumberOfEntries;
125	}
126
127	delete(mappingV2);
128	return (status);
129}
130#ifdef	__cplusplus
131}
132#endif
133