1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <devfsadm.h> 30*0Sstevel@tonic-gate #include <stdio.h> 31*0Sstevel@tonic-gate #include <strings.h> 32*0Sstevel@tonic-gate #include <stdlib.h> 33*0Sstevel@tonic-gate #include <limits.h> 34*0Sstevel@tonic-gate #include <ctype.h> 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #define SGEN_LINK_RE "^scsi/.+/c[0-9]+t[0-9A-F]+d[0-9]+$" 37*0Sstevel@tonic-gate #define SGEN_DIR "scsi" 38*0Sstevel@tonic-gate #define SGEN_CLASS "generic-scsi" 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate static int sgen_callback(di_minor_t minor, di_node_t node); 41*0Sstevel@tonic-gate static char *find_ctrlr(di_node_t node, di_minor_t minor); 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate static devfsadm_create_t sgen_create_cbt[] = { 45*0Sstevel@tonic-gate { SGEN_CLASS, "ddi_generic:scsi", NULL, 46*0Sstevel@tonic-gate TYPE_EXACT | CREATE_DEFER, ILEVEL_0, sgen_callback 47*0Sstevel@tonic-gate } 48*0Sstevel@tonic-gate }; 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate DEVFSADM_CREATE_INIT_V0(sgen_create_cbt); 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate /* 53*0Sstevel@tonic-gate * HOT auto cleanup of sgen links not desired. 54*0Sstevel@tonic-gate */ 55*0Sstevel@tonic-gate static devfsadm_remove_t sgen_remove_cbt[] = { 56*0Sstevel@tonic-gate { SGEN_CLASS, SGEN_LINK_RE, RM_POST, 57*0Sstevel@tonic-gate ILEVEL_0, devfsadm_rm_all 58*0Sstevel@tonic-gate } 59*0Sstevel@tonic-gate }; 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate DEVFSADM_REMOVE_INIT_V0(sgen_remove_cbt); 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate static int 64*0Sstevel@tonic-gate sgen_callback(di_minor_t minor, di_node_t node) 65*0Sstevel@tonic-gate { 66*0Sstevel@tonic-gate char *baddr, *cnum, *tstr; 67*0Sstevel@tonic-gate char lpath[PATH_MAX], buf[PATH_MAX]; 68*0Sstevel@tonic-gate uchar_t *wwn; 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate if ((cnum = find_ctrlr(node, minor)) == NULL) 71*0Sstevel@tonic-gate goto done; 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate if (di_prop_lookup_strings(DDI_DEV_T_ANY, node, 74*0Sstevel@tonic-gate "client-guid", (char **)&wwn) > 0) { 75*0Sstevel@tonic-gate /* 76*0Sstevel@tonic-gate * MPXIO-enabled devices; lun is always 0. 77*0Sstevel@tonic-gate */ 78*0Sstevel@tonic-gate if (strlcpy((char *)buf, (char *)wwn, sizeof (buf)) >= 79*0Sstevel@tonic-gate sizeof (buf)) 80*0Sstevel@tonic-gate goto done; 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate for (tstr = buf; *tstr != '\0'; tstr++) { 83*0Sstevel@tonic-gate *tstr = toupper(*tstr); 84*0Sstevel@tonic-gate } 85*0Sstevel@tonic-gate if (snprintf(lpath, sizeof (lpath), "%s/%s/c%st%sd0", SGEN_DIR, 86*0Sstevel@tonic-gate di_minor_name(minor), cnum, buf) >= sizeof (lpath)) 87*0Sstevel@tonic-gate goto done; 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate } else if (di_prop_lookup_bytes(DDI_DEV_T_ANY, node, 90*0Sstevel@tonic-gate "port-wwn", &wwn) == 8) { 91*0Sstevel@tonic-gate /* 92*0Sstevel@tonic-gate * "normal" fibre channel devices 93*0Sstevel@tonic-gate */ 94*0Sstevel@tonic-gate int lun, *lunp, count; 95*0Sstevel@tonic-gate if (di_prop_lookup_ints(DDI_DEV_T_ANY, node, "lun", &lunp) > 0) 96*0Sstevel@tonic-gate lun = *lunp; 97*0Sstevel@tonic-gate else 98*0Sstevel@tonic-gate lun = 0; 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate for (count = 0, tstr = buf; count < 8; count++, tstr += 2) 101*0Sstevel@tonic-gate (void) sprintf(tstr, "%02X", wwn[count]); 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate *tstr = '\0'; 104*0Sstevel@tonic-gate if (snprintf(lpath, sizeof (lpath), "%s/%s/c%st%sd%d", SGEN_DIR, 105*0Sstevel@tonic-gate di_minor_name(minor), cnum, buf, lun) >= sizeof (lpath)) 106*0Sstevel@tonic-gate goto done; 107*0Sstevel@tonic-gate } else { 108*0Sstevel@tonic-gate /* 109*0Sstevel@tonic-gate * Parallel SCSI devices 110*0Sstevel@tonic-gate */ 111*0Sstevel@tonic-gate uint_t targ, lun; 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate if ((baddr = di_bus_addr(node)) == NULL) 114*0Sstevel@tonic-gate goto done; 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate if (sscanf(baddr, "%X,%X", &targ, &lun) != 2) 117*0Sstevel@tonic-gate goto done; 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate if (snprintf(lpath, sizeof (lpath), "%s/%s/c%st%dd%d", SGEN_DIR, 120*0Sstevel@tonic-gate di_minor_name(minor), cnum, targ, lun) >= sizeof (lpath)) 121*0Sstevel@tonic-gate goto done; 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate (void) devfsadm_mklink(lpath, node, minor, 0); 125*0Sstevel@tonic-gate done: 126*0Sstevel@tonic-gate free(cnum); 127*0Sstevel@tonic-gate return (DEVFSADM_CONTINUE); 128*0Sstevel@tonic-gate } 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate /* index of enumeration rule applicable to this module */ 131*0Sstevel@tonic-gate #define RULE_INDEX 2 132*0Sstevel@tonic-gate 133*0Sstevel@tonic-gate static char * 134*0Sstevel@tonic-gate find_ctrlr(di_node_t node, di_minor_t minor) 135*0Sstevel@tonic-gate { 136*0Sstevel@tonic-gate char path[PATH_MAX + 1]; 137*0Sstevel@tonic-gate char *devfspath; 138*0Sstevel@tonic-gate char *buf, *mn; 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate devfsadm_enumerate_t rules[3] = { 141*0Sstevel@tonic-gate {"^r?dsk$/^c([0-9]+)", 1, MATCH_PARENT}, 142*0Sstevel@tonic-gate {"^cfg$/^c([0-9]+)$", 1, MATCH_ADDR}, 143*0Sstevel@tonic-gate {"^scsi$/^.+$/^c([0-9]+)", 1, MATCH_PARENT} 144*0Sstevel@tonic-gate }; 145*0Sstevel@tonic-gate 146*0Sstevel@tonic-gate mn = di_minor_name(minor); 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate if ((devfspath = di_devfs_path(node)) == NULL) { 149*0Sstevel@tonic-gate return (NULL); 150*0Sstevel@tonic-gate } 151*0Sstevel@tonic-gate (void) strcpy(path, devfspath); 152*0Sstevel@tonic-gate (void) strcat(path, ":"); 153*0Sstevel@tonic-gate (void) strcat(path, mn); 154*0Sstevel@tonic-gate di_devfs_path_free(devfspath); 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate /* 157*0Sstevel@tonic-gate * Use controller (parent) component of device path 158*0Sstevel@tonic-gate */ 159*0Sstevel@tonic-gate if (disk_enumerate_int(path, RULE_INDEX, &buf, rules, 3) == 160*0Sstevel@tonic-gate DEVFSADM_MULTIPLE) { 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate /* 163*0Sstevel@tonic-gate * We failed because there are multiple logical controller 164*0Sstevel@tonic-gate * numbers for a single physical controller. If we use node 165*0Sstevel@tonic-gate * name also for DEVICE paths in the match it should fix this 166*0Sstevel@tonic-gate * and only find one logical controller. (See 4045879). 167*0Sstevel@tonic-gate * NOTE: Rules for controllers are not changed, as there is 168*0Sstevel@tonic-gate * no unique controller number for them in this case. 169*0Sstevel@tonic-gate * 170*0Sstevel@tonic-gate * MATCH_UNCACHED flag is private to the "disks" and "sgen" 171*0Sstevel@tonic-gate * modules. NOT to be used by other modules. 172*0Sstevel@tonic-gate */ 173*0Sstevel@tonic-gate rules[0].flags = MATCH_NODE | MATCH_UNCACHED; /* disks */ 174*0Sstevel@tonic-gate rules[2].flags = MATCH_NODE | MATCH_UNCACHED; /* generic scsi */ 175*0Sstevel@tonic-gate if (devfsadm_enumerate_int(path, RULE_INDEX, &buf, rules, 3)) { 176*0Sstevel@tonic-gate return (NULL); 177*0Sstevel@tonic-gate } 178*0Sstevel@tonic-gate } 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate return (buf); 181*0Sstevel@tonic-gate } 182