1 files changed, 110 insertions, 0 deletions
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 <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)