1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>. 5 * Copyright (c) Intel Corporation. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * * Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * * Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * * Neither the name of Intel Corporation nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include "scsi_internal.h" 36 37 int 38 spdk_scsi_init(void) 39 { 40 return 0; 41 } 42 43 void 44 spdk_scsi_fini(void) 45 { 46 } 47 48 SPDK_TRACE_REGISTER_FN(scsi_trace, "scsi", TRACE_GROUP_SCSI) 49 { 50 spdk_trace_register_owner(OWNER_SCSI_DEV, 'd'); 51 spdk_trace_register_object(OBJECT_SCSI_TASK, 't'); 52 spdk_trace_register_description("SCSI_TASK_DONE", TRACE_SCSI_TASK_DONE, 53 OWNER_SCSI_DEV, OBJECT_SCSI_TASK, 0, 54 SPDK_TRACE_ARG_TYPE_INT, ""); 55 spdk_trace_register_description("SCSI_TASK_START", TRACE_SCSI_TASK_START, 56 OWNER_SCSI_DEV, OBJECT_SCSI_TASK, 0, 57 SPDK_TRACE_ARG_TYPE_INT, ""); 58 } 59 60 uint64_t 61 spdk_scsi_lun_id_int_to_fmt(int lun_id) 62 { 63 uint64_t fmt_lun, method; 64 65 if (lun_id < 0x0100) { 66 /* below 256 */ 67 method = 0x00U; 68 fmt_lun = (method & 0x03U) << 62; 69 fmt_lun |= ((uint64_t)lun_id & 0x00ffU) << 48; 70 } else if (lun_id < 0x4000) { 71 /* below 16384 */ 72 method = 0x01U; 73 fmt_lun = (method & 0x03U) << 62; 74 fmt_lun |= ((uint64_t)lun_id & 0x3fffU) << 48; 75 } else { 76 /* XXX */ 77 fmt_lun = 0; 78 } 79 80 return fmt_lun; 81 } 82 83 int 84 spdk_scsi_lun_id_fmt_to_int(uint64_t fmt_lun) 85 { 86 uint64_t method; 87 int lun_i; 88 89 method = (fmt_lun >> 62) & 0x03U; 90 fmt_lun = fmt_lun >> 48; 91 if (method == 0x00U) { 92 lun_i = (int)(fmt_lun & 0x00ffU); 93 } else if (method == 0x01U) { 94 lun_i = (int)(fmt_lun & 0x3fffU); 95 } else { 96 lun_i = 0xffffU; 97 } 98 return lun_i; 99 } 100 101 SPDK_LOG_REGISTER_COMPONENT(scsi) 102