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1 : : /* SPDX-License-Identifier: BSD-3-Clause 2 : : * Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>. 3 : : * Copyright (C) 2016 Intel Corporation. 4 : : * All rights reserved. 5 : : */ 6 : : 7 : : #include "spdk/env.h" 8 : : #include "spdk/log.h" 9 : : #include "iscsi/conn.h" 10 : : #include "iscsi/task.h" 11 : : 12 : : static void 13 : 23990677 : iscsi_task_free(struct spdk_scsi_task *scsi_task) 14 : : { 15 : 23990677 : struct spdk_iscsi_task *task = iscsi_task_from_scsi_task(scsi_task); 16 : : 17 [ + + # # : 23990677 : if (task->parent) { # # ] 18 [ + + # # : 1378873 : if (task->scsi.dxfer_dir == SPDK_SCSI_DIR_FROM_DEV) { # # # # ] 19 [ - + # # : 441350 : assert(task->conn->data_in_cnt > 0); # # # # # # # # ] 20 [ # # # # : 441350 : task->conn->data_in_cnt--; # # ] 21 : 0 : } 22 : : 23 [ # # # # : 1378873 : spdk_scsi_task_put(&task->parent->scsi); # # ] 24 [ # # # # ]: 1378873 : task->parent = NULL; 25 : 0 : } 26 : : 27 [ + + ]: 23990677 : if (iscsi_task_get_mobj(task)) { 28 : 45 : iscsi_datapool_put(iscsi_task_get_mobj(task)); 29 : 0 : } 30 : : 31 : 23990677 : iscsi_task_disassociate_pdu(task); 32 [ - + # # : 23990677 : assert(task->conn->pending_task_cnt > 0); # # # # # # # # ] 33 [ # # # # : 23990677 : task->conn->pending_task_cnt--; # # ] 34 [ # # ]: 23990677 : spdk_mempool_put(g_iscsi.task_pool, (void *)task); 35 : 23990677 : } 36 : : 37 : : struct spdk_iscsi_task * 38 : 23990677 : iscsi_task_get(struct spdk_iscsi_conn *conn, struct spdk_iscsi_task *parent, 39 : : spdk_scsi_task_cpl cpl_fn) 40 : : { 41 : 0 : struct spdk_iscsi_task *task; 42 : : 43 [ # # ]: 23990677 : task = spdk_mempool_get(g_iscsi.task_pool); 44 [ - + ]: 23990677 : if (!task) { 45 : 0 : SPDK_ERRLOG("Unable to get task\n"); 46 [ # # ]: 0 : abort(); 47 : : } 48 : : 49 [ - + # # ]: 23990677 : assert(conn != NULL); 50 [ - + ]: 23990677 : memset(task, 0, sizeof(*task)); 51 [ # # # # ]: 23990677 : task->conn = conn; 52 [ - + # # : 23990677 : assert(conn->pending_task_cnt < UINT32_MAX); # # # # ] 53 [ # # ]: 23990677 : conn->pending_task_cnt++; 54 [ # # ]: 23990677 : spdk_scsi_task_construct(&task->scsi, 55 : 0 : cpl_fn, 56 : : iscsi_task_free); 57 [ + + ]: 23990677 : if (parent) { 58 [ # # # # ]: 1378873 : parent->scsi.ref++; 59 [ # # # # ]: 1378873 : task->parent = parent; 60 [ # # # # : 1378873 : task->tag = parent->tag; # # # # ] 61 [ # # # # : 1378873 : task->lun_id = parent->lun_id; # # # # ] 62 [ # # # # : 1378873 : task->scsi.dxfer_dir = parent->scsi.dxfer_dir; # # # # # # # # ] 63 [ # # # # : 1378873 : task->scsi.transfer_len = parent->scsi.transfer_len; # # # # # # # # ] 64 [ # # # # : 1378873 : task->scsi.lun = parent->scsi.lun; # # # # # # # # ] 65 [ # # # # : 1378873 : task->scsi.cdb = parent->scsi.cdb; # # # # # # # # ] 66 [ # # # # : 1378873 : task->scsi.target_port = parent->scsi.target_port; # # # # # # # # ] 67 [ # # # # : 1378873 : task->scsi.initiator_port = parent->scsi.initiator_port; # # # # # # # # ] 68 [ + + # # : 1378873 : if (task->scsi.dxfer_dir == SPDK_SCSI_DIR_FROM_DEV) { # # # # ] 69 [ # # ]: 441350 : conn->data_in_cnt++; 70 : 0 : } 71 : 0 : } 72 : : 73 : 23990677 : return task; 74 : 0 : }