sym.c revision 12092:d8c71dc8ec0d
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 (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26/* 27 * Implementation of "scsi_vhci_f_sym" symmetric failover_ops. 28 * 29 * This file was historically meant for only symmetric implementation. It has 30 * been extended to manage SUN "supported" symmetric controllers. The supported 31 * VID/PID shall be listed in the symmetric_dev_table. 32 */ 33 34#include <sys/conf.h> 35#include <sys/file.h> 36#include <sys/ddi.h> 37#include <sys/sunddi.h> 38#include <sys/scsi/scsi.h> 39#include <sys/scsi/adapters/scsi_vhci.h> 40 41/* Supported device table entries. */ 42char *symmetric_dev_table[] = { 43/* " 111111" */ 44/* "012345670123456789012345" */ 45/* "|-VID--||-----PID------|" */ 46 /* disks */ 47 "IBM DDYFT", 48 "IBM IC", 49 "SEAGATE ST", 50 /* enclosures */ 51 "SUN SENA", /* SES device */ 52 "SUN SESS01", /* VICOM SVE box */ 53 "SUNW SUNWGS", /* Daktari enclosure */ 54 /* arrays */ 55 "HITACHI OPEN", /* Hitachi storage */ 56 "SUN PSX1000", /* Pirus Matterhorn */ 57 "SUN SE6920", /* Pirus */ 58 "SUN SE6940", /* DSP - Nauset */ 59 "SUN StorEdge 3510", /* Minnow FC */ 60 "SUN StorEdge 3511", /* Minnow SATA RAID */ 61 "SUN StorageTek 6920", /* DSP */ 62 "SUN StorageTek 6940", /* DSP - Nauset */ 63 "SUN StorageTek NAS", /* StorageTek NAS */ 64 "SUN MRA300_R", /* Shamrock - Controller */ 65 "SUN MRA300_E", /* Shamrock - Expansion */ 66 "STEC ZeusIOPs", /* Zeus SAS SSD */ 67 68 NULL 69}; 70 71/* Failover module plumbing. */ 72SCSI_FAILOVER_OP(SFO_NAME_SYM, symmetric); 73 74/* ARGSUSED */ 75static int 76symmetric_device_probe(struct scsi_device *sd, struct scsi_inquiry *stdinq, 77void **ctpriv) 78{ 79 char **dt; 80 81 VHCI_DEBUG(6, (CE_NOTE, NULL, "!inq str: %s\n", stdinq->inq_vid)); 82 for (dt = symmetric_dev_table; *dt; dt++) 83 if (strncmp(stdinq->inq_vid, *dt, strlen(*dt)) == 0) 84 return (SFO_DEVICE_PROBE_VHCI); 85 86 /* 87 * No match, check for generic Sun supported disks: 88 * 89 * "|-VID--||-----PID------|" 90 * "012345670123456789012345" 91 * ".................SUN..G." 92 * ".................SUN..T." 93 * ".................SUN...G" 94 * ".................SUN...T" 95 */ 96 if (bcmp(&stdinq->inq_pid[9], "SUN", 3) == 0) { 97 if ((stdinq->inq_pid[14] == 'G' || stdinq->inq_pid[15] == 'G' || 98 stdinq->inq_pid[14] == 'T' || stdinq->inq_pid[15] == 'T') && 99 (stdinq->inq_dtype == DTYPE_DIRECT)) { 100 return (SFO_DEVICE_PROBE_VHCI); 101 } 102 } 103 if (bcmp(&stdinq->inq_vid[0], "ATA ", 8) == 0) { 104 return (SFO_DEVICE_PROBE_VHCI); 105 } 106 return (SFO_DEVICE_PROBE_PHCI); 107} 108 109/* ARGSUSED */ 110static void 111symmetric_device_unprobe(struct scsi_device *sd, void *ctpriv) 112{ 113 /* 114 * NOP for symmetric 115 */ 116} 117 118/* ARGSUSED */ 119static int 120symmetric_path_activate(struct scsi_device *sd, char *pathclass, void *ctpriv) 121{ 122 return (0); 123} 124 125/* ARGSUSED */ 126static int 127symmetric_path_deactivate(struct scsi_device *sd, char *pathclass, 128void *ctpriv) 129{ 130 return (0); 131} 132 133/* ARGSUSED */ 134static int 135symmetric_path_get_opinfo(struct scsi_device *sd, 136struct scsi_path_opinfo *opinfo, void *ctpriv) 137{ 138 opinfo->opinfo_rev = OPINFO_REV; 139 (void) strcpy(opinfo->opinfo_path_attr, "primary"); 140 opinfo->opinfo_path_state = SCSI_PATH_ACTIVE; 141 opinfo->opinfo_pswtch_best = 0; /* N/A */ 142 opinfo->opinfo_pswtch_worst = 0; /* N/A */ 143 opinfo->opinfo_xlf_capable = 0; 144 opinfo->opinfo_mode = SCSI_NO_FAILOVER; 145 opinfo->opinfo_preferred = 1; 146 147 return (0); 148} 149 150/* ARGSUSED */ 151static int 152symmetric_path_ping(struct scsi_device *sd, void *ctpriv) 153{ 154 return (1); 155} 156 157/* ARGSUSED */ 158static int 159symmetric_analyze_sense(struct scsi_device *sd, 160uint8_t *sense, void *ctpriv) 161{ 162 return (SCSI_SENSE_NOFAILOVER); 163} 164 165/* ARGSUSED */ 166static int 167symmetric_pathclass_next(char *cur, char **nxt, void *ctpriv) 168{ 169 if (cur == NULL) { 170 *nxt = PCLASS_PRIMARY; 171 return (0); 172 } else if (strcmp(cur, PCLASS_PRIMARY) == 0) { 173 return (ENOENT); 174 } else { 175 return (EINVAL); 176 } 177} 178