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 * Returns the number of HBAs supported by the library. This returns the 31 * current number of HBAs, even if this changes 32 * 33 */ 34 HBA_UINT32 Sun_sasGetNumberOfPorts( 35 HBA_HANDLE handle, HBA_UINT32 *numberofports) 36 { 37 const char ROUTINE[] = "Sun_sasGetNumberOfPorts"; 38 int count, index; 39 struct sun_sas_hba *hba_ptr; 40 struct sun_sas_port *hba_port_ptr; 41 42 if (numberofports == NULL) { 43 log(LOG_DEBUG, ROUTINE, "NULL numberofPorts pointer"); 44 return (HBA_STATUS_ERROR_ARG); 45 } 46 47 lock(&all_hbas_lock); 48 index = RetrieveIndex(handle); 49 lock(&open_handles_lock); 50 hba_ptr = RetrieveHandle(index); 51 if (hba_ptr == NULL) { 52 log(LOG_DEBUG, ROUTINE, "Invalid handle %08lx.", handle); 53 /* on error, need to set NumberOfEntries to 0 */ 54 unlock(&open_handles_lock); 55 unlock(&all_hbas_lock); 56 return (HBA_STATUS_ERROR_INVALID_HANDLE); 57 } 58 /* goes through hba list counting all the hbas found */ 59 if (hba_ptr->first_port == NULL) { 60 log(LOG_DEBUG, ROUTINE, "No HBA Port found on handle %08lx.", 61 handle); 62 /* on error, need to set NumberOfPorts to 0 */ 63 *numberofports = 0; 64 unlock(&open_handles_lock); 65 unlock(&all_hbas_lock); 66 return (HBA_STATUS_OK); 67 } 68 69 for (count = 0, hba_port_ptr = hba_ptr->first_port; 70 hba_port_ptr != NULL; hba_port_ptr = hba_port_ptr->next, count++) {} 71 72 *numberofports = count; 73 74 unlock(&open_handles_lock); 75 unlock(&all_hbas_lock); 76 77 return (HBA_STATUS_OK); 78 79 } 80