LCOV - code coverage report
Current view: top level - spdk/lib/iscsi - task.c (source / functions) Hit Total Coverage
Test: Combined Lines: 40 51 78.4 %
Date: 2024-12-10 17:40:01 Functions: 2 2 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 17 234 7.3 %

           Branch data     Line data    Source code
       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                 :            : #include "iscsi/tgt_node.h"
      12                 :            : 
      13                 :            : static void
      14                 :    6038845 : iscsi_task_free(struct spdk_scsi_task *scsi_task)
      15                 :            : {
      16                 :            :         uint64_t tsc_diff;
      17                 :    6038845 :         struct spdk_iscsi_task *task = iscsi_task_from_scsi_task(scsi_task);
      18                 :            : 
      19   [ -  +  #  #  :    6038845 :         if (task->conn->target->histogram) {
          #  #  #  #  #  
             #  #  #  #  
                      # ]
      20   [ #  #  #  # ]:          0 :                 tsc_diff = spdk_get_ticks() - task->start_tsc;
      21   [ #  #  #  #  :          0 :                 spdk_histogram_data_tally(task->conn->target->histogram, tsc_diff);
          #  #  #  #  #  
                #  #  # ]
      22                 :          0 :         }
      23                 :            : 
      24   [ +  +  #  #  :    6038845 :         if (task->parent) {
                   #  # ]
      25   [ +  +  #  #  :     713487 :                 if (task->scsi.dxfer_dir == SPDK_SCSI_DIR_FROM_DEV) {
             #  #  #  # ]
      26   [ -  +  #  #  :     279628 :                         assert(task->conn->data_in_cnt > 0);
          #  #  #  #  #  
                #  #  # ]
      27   [ #  #  #  #  :     279628 :                         task->conn->data_in_cnt--;
                   #  # ]
      28                 :          0 :                 }
      29                 :            : 
      30   [ #  #  #  #  :     713487 :                 spdk_scsi_task_put(&task->parent->scsi);
                   #  # ]
      31   [ #  #  #  # ]:     713487 :                 task->parent = NULL;
      32                 :          0 :         }
      33                 :            : 
      34         [ +  + ]:    6038845 :         if (iscsi_task_get_mobj(task)) {
      35                 :         36 :                 iscsi_datapool_put(iscsi_task_get_mobj(task));
      36                 :          0 :         }
      37                 :            : 
      38                 :    6038845 :         iscsi_task_disassociate_pdu(task);
      39   [ -  +  #  #  :    6038845 :         assert(task->conn->pending_task_cnt > 0);
          #  #  #  #  #  
                #  #  # ]
      40   [ #  #  #  #  :    6038845 :         task->conn->pending_task_cnt--;
                   #  # ]
      41         [ #  # ]:    6038845 :         spdk_mempool_put(g_iscsi.task_pool, (void *)task);
      42                 :    6038845 : }
      43                 :            : 
      44                 :            : struct spdk_iscsi_task *
      45                 :    6038845 : iscsi_task_get(struct spdk_iscsi_conn *conn, struct spdk_iscsi_task *parent,
      46                 :            :                spdk_scsi_task_cpl cpl_fn)
      47                 :            : {
      48                 :            :         struct spdk_iscsi_task *task;
      49                 :            : 
      50         [ #  # ]:    6038845 :         task = spdk_mempool_get(g_iscsi.task_pool);
      51         [ -  + ]:    6038845 :         if (!task) {
      52                 :          0 :                 SPDK_ERRLOG("Unable to get task\n");
      53         [ #  # ]:          0 :                 abort();
      54                 :            :         }
      55                 :            : 
      56   [ -  +  #  # ]:    6038845 :         assert(conn != NULL);
      57         [ -  + ]:    6038845 :         memset(task, 0, sizeof(*task));
      58   [ #  #  #  # ]:    6038845 :         task->start_tsc = spdk_get_ticks();
      59   [ #  #  #  # ]:    6038845 :         task->conn = conn;
      60   [ -  +  #  #  :    6038845 :         assert(conn->pending_task_cnt < UINT32_MAX);
             #  #  #  # ]
      61         [ #  # ]:    6038845 :         conn->pending_task_cnt++;
      62         [ #  # ]:    6038845 :         spdk_scsi_task_construct(&task->scsi,
      63                 :          0 :                                  cpl_fn,
      64                 :            :                                  iscsi_task_free);
      65         [ +  + ]:    6038845 :         if (parent) {
      66   [ #  #  #  # ]:     713487 :                 parent->scsi.ref++;
      67   [ #  #  #  # ]:     713487 :                 task->parent = parent;
      68   [ #  #  #  #  :     713487 :                 task->tag = parent->tag;
             #  #  #  # ]
      69   [ #  #  #  #  :     713487 :                 task->lun_id = parent->lun_id;
             #  #  #  # ]
      70   [ #  #  #  #  :     713487 :                 task->scsi.dxfer_dir = parent->scsi.dxfer_dir;
          #  #  #  #  #  
                #  #  # ]
      71   [ #  #  #  #  :     713487 :                 task->scsi.transfer_len = parent->scsi.transfer_len;
          #  #  #  #  #  
                #  #  # ]
      72   [ #  #  #  #  :     713487 :                 task->scsi.lun = parent->scsi.lun;
          #  #  #  #  #  
                #  #  # ]
      73   [ #  #  #  #  :     713487 :                 task->scsi.cdb = parent->scsi.cdb;
          #  #  #  #  #  
                #  #  # ]
      74   [ #  #  #  #  :     713487 :                 task->scsi.target_port = parent->scsi.target_port;
          #  #  #  #  #  
                #  #  # ]
      75   [ #  #  #  #  :     713487 :                 task->scsi.initiator_port = parent->scsi.initiator_port;
          #  #  #  #  #  
                #  #  # ]
      76   [ +  +  #  #  :     713487 :                 if (task->scsi.dxfer_dir == SPDK_SCSI_DIR_FROM_DEV) {
             #  #  #  # ]
      77         [ #  # ]:     279628 :                         conn->data_in_cnt++;
      78                 :          0 :                 }
      79                 :          0 :         }
      80                 :            : 
      81                 :    6038845 :         return task;
      82                 :            : }

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