From 19fcec84d8d7d21e796c7624e521b60d28ee21ed Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:45:59 +0200 Subject: Adding upstream version 16.2.11+ds. Signed-off-by: Daniel Baumann --- src/spdk/lib/scsi/scsi.c | 110 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 src/spdk/lib/scsi/scsi.c (limited to 'src/spdk/lib/scsi/scsi.c') diff --git a/src/spdk/lib/scsi/scsi.c b/src/spdk/lib/scsi/scsi.c new file mode 100644 index 000000000..c18192e37 --- /dev/null +++ b/src/spdk/lib/scsi/scsi.c @@ -0,0 +1,110 @@ +/*- + * BSD LICENSE + * + * Copyright (C) 2008-2012 Daisuke Aoyama . + * 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) -- cgit v1.2.3