c9f8765a69
This removes the event framework dependency from the scsi library entirely. Change-Id: I73546d06721487f86c4c6a3be24474a5677bdb41 Signed-off-by: Ben Walker <benjamin.walker@intel.com> Reviewed-on: https://review.gerrithub.io/365728 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
136 lines
4.7 KiB
C
136 lines
4.7 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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#include "spdk/conf.h"
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#define DEFAULT_MAX_UNMAP_LBA_COUNT 4194304
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#define DEFAULT_MAX_UNMAP_BLOCK_DESCRIPTOR_COUNT 1
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#define DEFAULT_OPTIMAL_UNMAP_GRANULARITY 0
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#define DEFAULT_UNMAP_GRANULARITY_ALIGNMENT 0
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#define DEFAULT_UGAVALID 0
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#define DEFAULT_MAX_WRITE_SAME_LENGTH 512
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struct spdk_scsi_globals g_spdk_scsi;
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static void
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spdk_set_default_scsi_parameters(void)
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{
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g_spdk_scsi.scsi_params.max_unmap_lba_count = DEFAULT_MAX_UNMAP_LBA_COUNT;
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g_spdk_scsi.scsi_params.max_unmap_block_descriptor_count =
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DEFAULT_MAX_UNMAP_BLOCK_DESCRIPTOR_COUNT;
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g_spdk_scsi.scsi_params.optimal_unmap_granularity =
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DEFAULT_OPTIMAL_UNMAP_GRANULARITY;
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g_spdk_scsi.scsi_params.unmap_granularity_alignment =
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DEFAULT_UNMAP_GRANULARITY_ALIGNMENT;
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g_spdk_scsi.scsi_params.ugavalid = DEFAULT_UGAVALID;
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g_spdk_scsi.scsi_params.max_write_same_length = DEFAULT_MAX_WRITE_SAME_LENGTH;
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}
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static int
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spdk_read_config_scsi_parameters(void)
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{
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struct spdk_conf_section *sp;
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const char *val;
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sp = spdk_conf_find_section(NULL, "Scsi");
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if (sp == NULL) {
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spdk_set_default_scsi_parameters();
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return 0;
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}
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val = spdk_conf_section_get_val(sp, "MaxUnmapLbaCount");
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g_spdk_scsi.scsi_params.max_unmap_lba_count = (val == NULL) ?
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DEFAULT_MAX_UNMAP_LBA_COUNT : strtoul(val, NULL, 10);
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val = spdk_conf_section_get_val(sp, "MaxUnmapBlockDescriptorCount");
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g_spdk_scsi.scsi_params.max_unmap_block_descriptor_count = (val == NULL) ?
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DEFAULT_MAX_UNMAP_BLOCK_DESCRIPTOR_COUNT : strtoul(val, NULL, 10);
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val = spdk_conf_section_get_val(sp, "OptimalUnmapGranularity");
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g_spdk_scsi.scsi_params.optimal_unmap_granularity = (val == NULL) ?
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DEFAULT_OPTIMAL_UNMAP_GRANULARITY : strtoul(val, NULL, 10);
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val = spdk_conf_section_get_val(sp, "UnmapGranularityAlignment");
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g_spdk_scsi.scsi_params.unmap_granularity_alignment = (val == NULL) ?
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DEFAULT_UNMAP_GRANULARITY_ALIGNMENT : strtoul(val, NULL, 10);
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g_spdk_scsi.scsi_params.ugavalid = spdk_conf_section_get_boolval(sp, "Ugavalid", DEFAULT_UGAVALID);
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val = spdk_conf_section_get_val(sp, "MaxWriteSameLength");
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g_spdk_scsi.scsi_params.max_write_same_length = (val == NULL) ?
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DEFAULT_MAX_WRITE_SAME_LENGTH : strtoul(val, NULL, 10);
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return 0;
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}
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int
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spdk_scsi_init(void)
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{
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int rc;
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rc = pthread_mutex_init(&g_spdk_scsi.mutex, NULL);
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if (rc != 0) {
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SPDK_ERRLOG("mutex_init() failed\n");
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return -1;
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}
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rc = spdk_read_config_scsi_parameters();
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if (rc < 0) {
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SPDK_ERRLOG("spdk_scsi_parameters() failed\n");
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return -1;
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}
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return 0;
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}
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int
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spdk_scsi_fini(void)
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{
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pthread_mutex_destroy(&g_spdk_scsi.mutex);
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return 0;
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}
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SPDK_TRACE_REGISTER_FN(scsi_trace)
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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, 0, 0, "");
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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, 0, 0, "");
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}
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SPDK_LOG_REGISTER_TRACE_FLAG("scsi", SPDK_TRACE_SCSI)
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