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 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <devfsadm.h> 30 #include <strings.h> 31 #include <stdlib.h> 32 #include <limits.h> 33 #include <bsm/devalloc.h> 34 35 #define SMP_LINK_RE "^smp/expd[0-9]+$" 36 #define SMP_CLASS "sas" 37 #define SMP_DRV_NAME "smp" 38 39 static int smp_callback(di_minor_t minor, di_node_t node); 40 41 static devfsadm_create_t smp_create_cbt[] = { 42 { SMP_CLASS, "ddi_sas_smp", SMP_DRV_NAME, 43 TYPE_EXACT | DRV_EXACT, ILEVEL_0, smp_callback 44 } 45 }; 46 47 DEVFSADM_CREATE_INIT_V0(smp_create_cbt); 48 49 /* 50 * HOT auto cleanup of smp links not desired. 51 */ 52 static devfsadm_remove_t smp_remove_cbt[] = { 53 { SMP_CLASS, SMP_LINK_RE, RM_PRE, 54 ILEVEL_0, devfsadm_rm_all 55 } 56 }; 57 58 DEVFSADM_REMOVE_INIT_V0(smp_remove_cbt); 59 60 /* 61 * Create link for expander devices as form 62 * dev/smp/expd0 -> ../../devices/pci@0,0/.../smp@w5001636000005aff:smp 63 */ 64 static int 65 smp_callback(di_minor_t minor, di_node_t node) 66 { 67 char l_path[PATH_MAX + 1]; 68 char *buf; 69 char *mn; 70 char *devfspath; 71 devfsadm_enumerate_t rules[1] = {"smp/expd([0-9]+)", 1, MATCH_ADDR}; 72 73 mn = di_minor_name(minor); 74 75 devfspath = di_devfs_path(node); 76 77 (void) strcpy(l_path, devfspath); 78 (void) strcat(l_path, ":"); 79 (void) strcat(l_path, mn); 80 81 di_devfs_path_free(devfspath); 82 83 if (devfsadm_enumerate_int(l_path, 0, &buf, rules, 1)) { 84 return (DEVFSADM_CONTINUE); 85 } 86 87 (void) strcpy(l_path, "smp/expd"); 88 (void) strcat(l_path, buf); 89 free(buf); 90 91 (void) devfsadm_mklink(l_path, node, minor, 0); 92 93 return (DEVFSADM_CONTINUE); 94 } 95