numam-spdk/lib/iscsi/task.c
Ben Walker d29384bf97 iscsi: Add an iscsi library.
Change-Id: I28f3f4723a66f845eb478a6873d7aedb8f5409b8
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-08-03 14:43:40 -07:00

68 lines
2.5 KiB
C

/*-
* 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 <rte_config.h>
#include <rte_mempool.h>
#include "spdk/log.h"
#include "iscsi/task.h"
static void
spdk_iscsi_task_free(struct spdk_scsi_task *task)
{
spdk_iscsi_task_disassociate_pdu((struct spdk_iscsi_task *)task);
rte_mempool_put(g_spdk_iscsi.task_pool, (void *)task);
}
struct spdk_iscsi_task *
spdk_iscsi_task_get(uint32_t *owner_task_ctr, struct spdk_iscsi_task *parent)
{
struct spdk_iscsi_task *task;
int rc;
rc = rte_mempool_get(g_spdk_iscsi.task_pool, (void **)&task);
if ((rc < 0) || !task) {
SPDK_ERRLOG("Unable to get task\n");
rte_panic("no memory\n");
}
memset(task, 0, sizeof(*task));
spdk_scsi_task_construct((struct spdk_scsi_task *)task, owner_task_ctr,
(struct spdk_scsi_task *)parent);
task->scsi.free_fn = spdk_iscsi_task_free;
return task;
}