Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 88 insertions, 0 deletions

diff --git a/src/spdk/lib/iscsi/task.c b/src/spdk/lib/iscsi/task.c
new file mode 100644
index 00000000..6b56cd97
--- /dev/null
+++ b/src/spdk/lib/iscsi/task.c
@@ -0,0 +1,88 @@
+/*-
+ *   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 "spdk/env.h"
+#include "spdk/log.h"
+#include "iscsi/conn.h"
+#include "iscsi/task.h"
+
+static void
+spdk_iscsi_task_free(struct spdk_scsi_task *scsi_task)
+{
+	struct spdk_iscsi_task *task = spdk_iscsi_task_from_scsi_task(scsi_task);
+
+	if (task->parent) {
+		spdk_scsi_task_put(&task->parent->scsi);
+		task->parent = NULL;
+	}
+
+	spdk_iscsi_task_disassociate_pdu(task);
+	assert(task->conn->pending_task_cnt > 0);
+	task->conn->pending_task_cnt--;
+	spdk_mempool_put(g_spdk_iscsi.task_pool, (void *)task);
+}
+
+struct spdk_iscsi_task *
+spdk_iscsi_task_get(struct spdk_iscsi_conn *conn, struct spdk_iscsi_task *parent,
+		    spdk_scsi_task_cpl cpl_fn)
+{
+	struct spdk_iscsi_task *task;
+
+	task = spdk_mempool_get(g_spdk_iscsi.task_pool);
+	if (!task) {
+		SPDK_ERRLOG("Unable to get task\n");
+		abort();
+	}
+
+	memset(task, 0, sizeof(*task));
+	task->conn = conn;
+	assert(conn->pending_task_cnt < UINT32_MAX);
+	conn->pending_task_cnt++;
+	spdk_scsi_task_construct(&task->scsi,
+				 cpl_fn,
+				 spdk_iscsi_task_free);
+	if (parent) {
+		parent->scsi.ref++;
+		task->parent = parent;
+		task->tag = parent->tag;
+		task->scsi.dxfer_dir = parent->scsi.dxfer_dir;
+		task->scsi.transfer_len = parent->scsi.transfer_len;
+		task->scsi.lun = parent->scsi.lun;
+		task->scsi.cdb = parent->scsi.cdb;
+		task->scsi.target_port = parent->scsi.target_port;
+		task->scsi.initiator_port = parent->scsi.initiator_port;
+	}
+
+	return task;
+}