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scsi: move data_out_cnt to iSCSI task

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Change-Id: I550de37d5088e2273b9d53ab8a2d6134c486fba0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Daniel Verkamp 2017-05-03 13:44:35 -07:00
parent d4da788057
commit 7e7ed7ec10
3 changed files with 5 additions and 4 deletions
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1
include/spdk/scsi.h
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@ -108,7 +108,6 @@ struct spdk_scsi_task {
uint32_t ref;
uint32_t transfer_len;
uint32_t data_out_cnt;
uint32_t dxfer_dir;
/* Only valid for Read/Write */
uint32_t bytes_completed;

6
lib/iscsi/iscsi.c
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@ -3495,7 +3495,7 @@ spdk_add_transfer_task(struct spdk_iscsi_conn *conn,
max_burst_len = conn->sess->MaxBurstLength;
segment_len = g_spdk_iscsi.MaxRecvDataSegmentLength;
data_out_req = 1 + (transfer_len - data_len - 1) / segment_len;
task->scsi.data_out_cnt = data_out_req;
task->data_out_cnt = data_out_req;
/*
* If we already have too many tasks using R2T, then queue this task
@ -3545,7 +3545,7 @@ void spdk_del_transfer_task(struct spdk_iscsi_conn *conn, uint32_t task_tag)
if (conn->outstanding_r2t_tasks[i]->tag == task_tag) {
task = conn->outstanding_r2t_tasks[i];
conn->outstanding_r2t_tasks[i] = NULL;
conn->data_out_cnt -= task->scsi.data_out_cnt;
conn->data_out_cnt -= task->data_out_cnt;
found = 1;
break;
}
@ -3608,7 +3608,7 @@ void spdk_clear_all_transfer_task(struct spdk_iscsi_conn *conn,
task->outstanding_r2t = 0;
task->next_r2t_offset = 0;
task->next_expected_r2t_offset = 0;
conn->data_out_cnt -= task->scsi.data_out_cnt;
conn->data_out_cnt -= task->data_out_cnt;
conn->pending_r2t--;
}
}

2
lib/iscsi/task.h
View File

@ -46,6 +46,8 @@ struct spdk_iscsi_task {
uint32_t desired_data_transfer_length;
uint32_t data_out_cnt;
/*
* Tracks the current offset of large read io.
*/