45dddbc891
Previously we decided which LUN format is used by the macro constant SPDK_SCSI_DEV_MAX_LUN. However, as long as we read SAM, the LUN format can be decided per LUN ID. Linux host SCSI driver supports 256 LUNs per SCSI device at the maximum. So we cannot test this fix on any actual system but we apply this fix for the potential future cases. Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Change-Id: Ifa6a3b66431f5e1eade326348dd99b8b9653408b Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9664 Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Community-CI: Mellanox Build Bot Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>.
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "scsi_internal.h"
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int
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spdk_scsi_init(void)
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{
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return 0;
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}
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void
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spdk_scsi_fini(void)
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{
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}
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SPDK_TRACE_REGISTER_FN(scsi_trace, "scsi", TRACE_GROUP_SCSI)
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{
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spdk_trace_register_owner(OWNER_SCSI_DEV, 'd');
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spdk_trace_register_object(OBJECT_SCSI_TASK, 't');
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spdk_trace_register_description("SCSI_TASK_DONE", TRACE_SCSI_TASK_DONE,
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OWNER_SCSI_DEV, OBJECT_SCSI_TASK, 0,
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SPDK_TRACE_ARG_TYPE_INT, "");
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spdk_trace_register_description("SCSI_TASK_START", TRACE_SCSI_TASK_START,
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OWNER_SCSI_DEV, OBJECT_SCSI_TASK, 0,
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SPDK_TRACE_ARG_TYPE_INT, "");
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}
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uint64_t
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spdk_scsi_lun_id_int_to_fmt(int lun_id)
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{
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uint64_t fmt_lun, method;
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if (lun_id < 0x0100) {
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/* below 256 */
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method = 0x00U;
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fmt_lun = (method & 0x03U) << 62;
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fmt_lun |= ((uint64_t)lun_id & 0x00ffU) << 48;
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} else if (lun_id < 0x4000) {
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/* below 16384 */
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method = 0x01U;
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fmt_lun = (method & 0x03U) << 62;
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fmt_lun |= ((uint64_t)lun_id & 0x3fffU) << 48;
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} else {
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/* XXX */
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fmt_lun = 0;
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}
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return fmt_lun;
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}
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int
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spdk_scsi_lun_id_fmt_to_int(uint64_t fmt_lun)
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{
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uint64_t method;
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int lun_i;
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method = (fmt_lun >> 62) & 0x03U;
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fmt_lun = fmt_lun >> 48;
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if (method == 0x00U) {
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lun_i = (int)(fmt_lun & 0x00ffU);
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} else if (method == 0x01U) {
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lun_i = (int)(fmt_lun & 0x3fffU);
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} else {
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lun_i = 0xffffU;
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}
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return lun_i;
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}
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SPDK_LOG_REGISTER_COMPONENT(scsi)
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