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
29 /*
30 * Pass scsi request buffer into uscsi command and sent it out via ioctl
31 */
32 static HBA_STATUS
SendScsiReportLUNs(const char * devpath,void * responseBuffer,HBA_UINT32 * responseSize,HBA_UINT8 * scsiStatus,void * senseBuffer,HBA_UINT32 * senseSize)33 SendScsiReportLUNs(const char *devpath, void *responseBuffer,
34 HBA_UINT32 *responseSize, HBA_UINT8 *scsiStatus,
35 void *senseBuffer, HBA_UINT32 *senseSize)
36 {
37 HBA_UINT32 status;
38 struct uscsi_cmd ucmd_buf;
39 union scsi_cdb cdb;
40
41 bzero(&cdb, sizeof (cdb));
42 bzero(&ucmd_buf, sizeof (ucmd_buf));
43 bzero(senseBuffer, *senseSize);
44
45 cdb.scc_cmd = SCMD_REPORT_LUNS;
46 FORMG5COUNT(&cdb, *responseSize);
47
48 ucmd_buf.uscsi_cdb = (char *)&cdb;
49 ucmd_buf.uscsi_cdblen = CDB_GROUP5;
50 ucmd_buf.uscsi_bufaddr = (caddr_t)responseBuffer;
51 ucmd_buf.uscsi_buflen = *responseSize;
52 ucmd_buf.uscsi_rqbuf = (caddr_t)senseBuffer;
53 ucmd_buf.uscsi_rqlen = *senseSize;
54 ucmd_buf.uscsi_flags = USCSI_READ | USCSI_SILENT | USCSI_RQENABLE;
55 ucmd_buf.uscsi_timeout = 60;
56
57 status = send_uscsi_cmd(devpath, &ucmd_buf);
58 *scsiStatus = ucmd_buf.uscsi_status;
59 return (status);
60
61 }
62
63 /*
64 * Send a SCSI report luns command to a remote WWN
65 */
66 HBA_STATUS
Sun_sasScsiReportLUNs(HBA_HANDLE handle,HBA_WWN portWWN,HBA_WWN targetPortWWN,HBA_WWN domainPortWWN,void * responseBuffer,HBA_UINT32 * responseSize,HBA_UINT8 * scsiStatus,void * senseBuffer,HBA_UINT32 * senseSize)67 Sun_sasScsiReportLUNs(HBA_HANDLE handle, HBA_WWN portWWN, HBA_WWN targetPortWWN,
68 HBA_WWN domainPortWWN, void *responseBuffer, HBA_UINT32 *responseSize,
69 HBA_UINT8 *scsiStatus, void *senseBuffer, HBA_UINT32 *senseSize)
70 {
71 const char ROUTINE[] = "Sun_sasScsiReportLUNs";
72 HBA_STATUS status;
73 int index = 0, domainPortFound = 0;
74 int chkDomainPort = 0;
75 int hbaPortFound = 0;
76 struct sun_sas_hba *hba_ptr = NULL;
77 struct sun_sas_port *hba_port_ptr, *hba_disco_port;
78 struct ScsiEntryList *mapping_ptr;
79 hrtime_t start, end;
80 double duration;
81
82 start = gethrtime();
83
84 /* Validate the arguments */
85 if (responseBuffer == NULL) {
86 log(LOG_DEBUG, ROUTINE, "NULL response buffer");
87 return (HBA_STATUS_ERROR_ARG);
88 }
89 if (senseBuffer == NULL) {
90 log(LOG_DEBUG, ROUTINE, "NULL sense buffer");
91 return (HBA_STATUS_ERROR_ARG);
92 }
93 if (responseSize == NULL) {
94 log(LOG_DEBUG, ROUTINE, "NULL response size");
95 return (HBA_STATUS_ERROR_ARG);
96 }
97 if (senseSize == NULL) {
98 log(LOG_DEBUG, ROUTINE, "NULL sense size");
99 return (HBA_STATUS_ERROR_ARG);
100 }
101 if (scsiStatus == NULL) {
102 log(LOG_DEBUG, ROUTINE, "NULL scsi status");
103 return (HBA_STATUS_ERROR_ARG);
104 }
105
106 lock(&all_hbas_lock);
107 index = RetrieveIndex(handle);
108 lock(&open_handles_lock);
109 if ((hba_ptr = RetrieveHandle(index)) == NULL) {
110 log(LOG_DEBUG, ROUTINE, "Invalid handle %08lx", handle);
111 unlock(&open_handles_lock);
112 unlock(&all_hbas_lock);
113 return (HBA_STATUS_ERROR_INVALID_HANDLE);
114 }
115
116 /* Check for stale data */
117 status = verifyAdapter(hba_ptr);
118 if (status != HBA_STATUS_OK) {
119 log(LOG_DEBUG, ROUTINE, "Verify adapter failed");
120 unlock(&open_handles_lock);
121 unlock(&all_hbas_lock);
122 return (status);
123 }
124
125 if (wwnConversion(domainPortWWN.wwn))
126 chkDomainPort = 1;
127 /* Determine which port to use */
128 for (hba_port_ptr = hba_ptr->first_port;
129 hba_port_ptr != NULL;
130 hba_port_ptr = hba_port_ptr->next) {
131
132 if (hbaPortFound == 0) {
133 if (wwnConversion(hba_port_ptr->port_attributes.
134 PortSpecificAttribute.SASPort->LocalSASAddress.wwn)
135 != wwnConversion(portWWN.wwn)) {
136 /*
137 * Since all the ports under the same HBA have
138 * the same LocalSASAddress, we should break
139 * the loop once we find it dosn't match.
140 */
141 break;
142 } else {
143 hbaPortFound = 1;
144 }
145 }
146
147 if (chkDomainPort != 0) {
148 if (hba_port_ptr->first_phy != NULL &&
149 wwnConversion(hba_port_ptr->first_phy->
150 phy.domainPortWWN.wwn) ==
151 wwnConversion(domainPortWWN.wwn)) {
152 domainPortFound = 1;
153 }
154 if (!(domainPortFound)) {
155 continue;
156 }
157 }
158
159 for (hba_disco_port = hba_port_ptr->first_attached_port;
160 hba_disco_port != NULL;
161 hba_disco_port = hba_disco_port->next) {
162
163 /*
164 * If discoveredPort is not given targetPort, skip
165 */
166 if (wwnConversion(hba_disco_port->port_attributes.\
167 PortSpecificAttribute.SASPort->LocalSASAddress.wwn)
168 != wwnConversion(targetPortWWN.wwn)) {
169 /* Does not match */
170 continue;
171 }
172
173 /*
174 * If discoveredPort is not a SAS/SATA port, it is not a
175 * target port
176 */
177 if ((hba_disco_port->port_attributes.PortType !=
178 HBA_PORTTYPE_SATADEVICE) &&
179 (hba_disco_port->port_attributes.PortType !=
180 HBA_PORTTYPE_SASDEVICE)) {
181 unlock(&open_handles_lock);
182 unlock(&all_hbas_lock);
183 log(LOG_DEBUG, ROUTINE, "Target Port WWN "
184 "%016llx on handle %08lx is not a Target",
185 wwnConversion(targetPortWWN.wwn), handle);
186 return (HBA_STATUS_ERROR_NOT_A_TARGET);
187 }
188
189 if ((mapping_ptr = hba_disco_port->scsiInfo) != NULL) {
190
191 status = SendScsiReportLUNs(
192 mapping_ptr->entry.ScsiId.OSDeviceName,
193 responseBuffer, responseSize,
194 scsiStatus, senseBuffer, senseSize);
195
196 unlock(&open_handles_lock);
197 unlock(&all_hbas_lock);
198 end = gethrtime();
199 duration = end - start;
200 duration /= HR_SECOND;
201 log(LOG_DEBUG, ROUTINE, "Took total\
202 of %.4f seconds", duration);
203 return (status);
204 }
205 }
206
207 if (chkDomainPort) {
208 unlock(&open_handles_lock);
209 unlock(&all_hbas_lock);
210 log(LOG_DEBUG, ROUTINE, "Unable to located requested "
211 "Port %016llx on handle %08lx",
212 wwnConversion(targetPortWWN.wwn), handle);
213 return (HBA_STATUS_ERROR_ILLEGAL_WWN);
214 }
215 }
216
217 unlock(&open_handles_lock);
218 unlock(&all_hbas_lock);
219 if (hbaPortFound == 0) {
220 log(LOG_DEBUG, ROUTINE,
221 "Unable to locate requested Port WWN %016llx on "
222 "handle %08lx", wwnConversion(portWWN.wwn), handle);
223 } else if (chkDomainPort && !domainPortFound) {
224 log(LOG_DEBUG, ROUTINE, "Unable to locate requested"
225 " domainPortWWN %016llx on handle %08lx",
226 wwnConversion(domainPortWWN.wwn), handle);
227 } else {
228 log(LOG_DEBUG, ROUTINE, "Unable to locate requested "
229 "Port WWN %016llx on handle %08lx",
230 wwnConversion(targetPortWWN.wwn), handle);
231 }
232 return (HBA_STATUS_ERROR_ILLEGAL_WWN);
233 }
234