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/*-
* BSD LICENSE
*
* Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>.
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "scsi_internal.h"
struct spdk_scsi_globals g_scsi;
int
spdk_scsi_init(void)
{
int rc;
rc = pthread_mutex_init(&g_scsi.mutex, NULL);
if (rc != 0) {
SPDK_ERRLOG("mutex_init() failed\n");
return -1;
}
return 0;
}
void
spdk_scsi_fini(void)
{
pthread_mutex_destroy(&g_scsi.mutex);
}
SPDK_TRACE_REGISTER_FN(scsi_trace, "scsi", TRACE_GROUP_SCSI)
{
spdk_trace_register_owner(OWNER_SCSI_DEV, 'd');
spdk_trace_register_object(OBJECT_SCSI_TASK, 't');
spdk_trace_register_description("SCSI_TASK_DONE", TRACE_SCSI_TASK_DONE,
OWNER_SCSI_DEV, OBJECT_SCSI_TASK, 0, 0, "");
spdk_trace_register_description("SCSI_TASK_START", TRACE_SCSI_TASK_START,
OWNER_SCSI_DEV, OBJECT_SCSI_TASK, 0, 0, "");
}
uint64_t
spdk_scsi_lun_id_int_to_fmt(int lun_id)
{
uint64_t fmt_lun, method;
if (SPDK_SCSI_DEV_MAX_LUN <= 0x0100) {
/* below 256 */
method = 0x00U;
fmt_lun = (method & 0x03U) << 62;
fmt_lun |= ((uint64_t)lun_id & 0x00ffU) << 48;
} else if (SPDK_SCSI_DEV_MAX_LUN <= 0x4000) {
/* below 16384 */
method = 0x01U;
fmt_lun = (method & 0x03U) << 62;
fmt_lun |= ((uint64_t)lun_id & 0x3fffU) << 48;
} else {
/* XXX */
fmt_lun = 0;
}
return fmt_lun;
}
int
spdk_scsi_lun_id_fmt_to_int(uint64_t fmt_lun)
{
uint64_t method;
int lun_i;
method = (fmt_lun >> 62) & 0x03U;
fmt_lun = fmt_lun >> 48;
if (method == 0x00U) {
lun_i = (int)(fmt_lun & 0x00ffU);
} else if (method == 0x01U) {
lun_i = (int)(fmt_lun & 0x3fffU);
} else {
lun_i = 0xffffU;
}
return lun_i;
}
SPDK_LOG_REGISTER_COMPONENT("scsi", SPDK_LOG_SCSI)
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