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 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 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