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[SCSI] iser: handle iscsi_cmd_task rename

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This handles the iscsi_cmd_task rename and renames
the iser cmd task to iser task.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Mike Christie
2008-05-21 15:54:11 -05:00
committed by James Bottomley
parent 135a8ad4e0
commit 2261ec3d68
4 changed files with 203 additions and 202 deletions
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114
drivers/infiniband/ulp/iser/iscsi_iser.c
View File

@@ -124,33 +124,33 @@ error:
/**
* iscsi_iser_task_init - Initialize ctask
* @ctask: iscsi ctask
* iscsi_iser_task_init - Initialize task
* @task: iscsi task
*
* Initialize the ctask for the scsi command or mgmt command.
* Initialize the task for the scsi command or mgmt command.
*/
static int
iscsi_iser_task_init(struct iscsi_cmd_task *ctask)
iscsi_iser_task_init(struct iscsi_task *task)
{
struct iscsi_iser_conn *iser_conn = ctask->conn->dd_data;
struct iscsi_iser_cmd_task *iser_ctask = ctask->dd_data;
struct iscsi_iser_conn *iser_conn = task->conn->dd_data;
struct iscsi_iser_task *iser_task = task->dd_data;
/* mgmt ctask */
if (!ctask->sc) {
iser_ctask->desc.data = ctask->data;
/* mgmt task */
if (!task->sc) {
iser_task->desc.data = task->data;
return 0;
}
iser_ctask->command_sent = 0;
iser_ctask->iser_conn = iser_conn;
iser_ctask_rdma_init(iser_ctask);
iser_task->command_sent = 0;
iser_task->iser_conn = iser_conn;
iser_task_rdma_init(iser_task);
return 0;
}
/**
* iscsi_iser_mtask_xmit - xmit management(immediate) ctask
* iscsi_iser_mtask_xmit - xmit management(immediate) task
* @conn: iscsi connection
* @ctask: ctask management ctask
* @task: task management task
*
* Notes:
* The function can return -EAGAIN in which case caller must
@@ -159,19 +159,19 @@ iscsi_iser_task_init(struct iscsi_cmd_task *ctask)
*
**/
static int
iscsi_iser_mtask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
iscsi_iser_mtask_xmit(struct iscsi_conn *conn, struct iscsi_task *task)
{
int error = 0;
debug_scsi("ctask deq [cid %d itt 0x%x]\n", conn->id, ctask->itt);
debug_scsi("task deq [cid %d itt 0x%x]\n", conn->id, task->itt);
error = iser_send_control(conn, ctask);
error = iser_send_control(conn, task);
/* since iser xmits control with zero copy, ctasks can not be recycled
/* since iser xmits control with zero copy, tasks can not be recycled
* right after sending them.
* The recycling scheme is based on whether a response is expected
* - if yes, the ctask is recycled at iscsi_complete_pdu
* - if no, the ctask is recycled at iser_snd_completion
* - if yes, the task is recycled at iscsi_complete_pdu
* - if no, the task is recycled at iser_snd_completion
*/
if (error && error != -ENOBUFS)
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
@@ -181,27 +181,27 @@ iscsi_iser_mtask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
static int
iscsi_iser_task_xmit_unsol_data(struct iscsi_conn *conn,
struct iscsi_cmd_task *ctask)
struct iscsi_task *task)
{
struct iscsi_data hdr;
int error = 0;
/* Send data-out PDUs while there's still unsolicited data to send */
while (ctask->unsol_count > 0) {
iscsi_prep_unsolicit_data_pdu(ctask, &hdr);
while (task->unsol_count > 0) {
iscsi_prep_unsolicit_data_pdu(task, &hdr);
debug_scsi("Sending data-out: itt 0x%x, data count %d\n",
hdr.itt, ctask->data_count);
hdr.itt, task->data_count);
/* the buffer description has been passed with the command */
/* Send the command */
error = iser_send_data_out(conn, ctask, &hdr);
error = iser_send_data_out(conn, task, &hdr);
if (error) {
ctask->unsol_datasn--;
task->unsol_datasn--;
goto iscsi_iser_task_xmit_unsol_data_exit;
}
ctask->unsol_count -= ctask->data_count;
task->unsol_count -= task->data_count;
debug_scsi("Need to send %d more as data-out PDUs\n",
ctask->unsol_count);
task->unsol_count);
}
iscsi_iser_task_xmit_unsol_data_exit:
@@ -209,37 +209,37 @@ iscsi_iser_task_xmit_unsol_data_exit:
}
static int
iscsi_iser_task_xmit(struct iscsi_cmd_task *ctask)
iscsi_iser_task_xmit(struct iscsi_task *task)
{
struct iscsi_conn *conn = ctask->conn;
struct iscsi_iser_cmd_task *iser_ctask = ctask->dd_data;
struct iscsi_conn *conn = task->conn;
struct iscsi_iser_task *iser_task = task->dd_data;
int error = 0;
if (!ctask->sc)
return iscsi_iser_mtask_xmit(conn, ctask);
if (!task->sc)
return iscsi_iser_mtask_xmit(conn, task);
if (ctask->sc->sc_data_direction == DMA_TO_DEVICE) {
BUG_ON(scsi_bufflen(ctask->sc) == 0);
if (task->sc->sc_data_direction == DMA_TO_DEVICE) {
BUG_ON(scsi_bufflen(task->sc) == 0);
debug_scsi("cmd [itt %x total %d imm %d unsol_data %d\n",
ctask->itt, scsi_bufflen(ctask->sc),
ctask->imm_count, ctask->unsol_count);
task->itt, scsi_bufflen(task->sc),
task->imm_count, task->unsol_count);
}
debug_scsi("ctask deq [cid %d itt 0x%x]\n",
conn->id, ctask->itt);
debug_scsi("task deq [cid %d itt 0x%x]\n",
conn->id, task->itt);
/* Send the cmd PDU */
if (!iser_ctask->command_sent) {
error = iser_send_command(conn, ctask);
if (!iser_task->command_sent) {
error = iser_send_command(conn, task);
if (error)
goto iscsi_iser_task_xmit_exit;
iser_ctask->command_sent = 1;
iser_task->command_sent = 1;
}
/* Send unsolicited data-out PDU(s) if necessary */
if (ctask->unsol_count)
error = iscsi_iser_task_xmit_unsol_data(conn, ctask);
if (task->unsol_count)
error = iscsi_iser_task_xmit_unsol_data(conn, task);
iscsi_iser_task_xmit_exit:
if (error && error != -ENOBUFS)
@@ -248,17 +248,17 @@ iscsi_iser_task_xmit(struct iscsi_cmd_task *ctask)
}
static void
iscsi_iser_cleanup_task(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
iscsi_iser_cleanup_task(struct iscsi_conn *conn, struct iscsi_task *task)
{
struct iscsi_iser_cmd_task *iser_ctask = ctask->dd_data;
struct iscsi_iser_task *iser_task = task->dd_data;
/* mgmt tasks do not need special cleanup */
if (!ctask->sc)
if (!task->sc)
return;
if (iser_ctask->status == ISER_TASK_STATUS_STARTED) {
iser_ctask->status = ISER_TASK_STATUS_COMPLETED;
iser_ctask_rdma_finalize(iser_ctask);
if (iser_task->status == ISER_TASK_STATUS_STARTED) {
iser_task->status = ISER_TASK_STATUS_COMPLETED;
iser_task_rdma_finalize(iser_task);
}
}
@@ -408,8 +408,8 @@ iscsi_iser_session_create(struct Scsi_Host *shost,
struct iscsi_cls_session *cls_session;
struct iscsi_session *session;
int i;
struct iscsi_cmd_task *ctask;
struct iscsi_iser_cmd_task *iser_ctask;
struct iscsi_task *task;
struct iscsi_iser_task *iser_task;
if (shost) {
printk(KERN_ERR "iscsi_tcp: invalid shost %d.\n",
@@ -436,7 +436,7 @@ iscsi_iser_session_create(struct Scsi_Host *shost,
*/
cls_session = iscsi_session_setup(&iscsi_iser_transport, shost,
ISCSI_DEF_XMIT_CMDS_MAX,
sizeof(struct iscsi_iser_cmd_task),
sizeof(struct iscsi_iser_task),
initial_cmdsn);
if (!cls_session)
goto remove_host;
@@ -445,10 +445,10 @@ iscsi_iser_session_create(struct Scsi_Host *shost,
shost->can_queue = session->scsi_cmds_max;
/* libiscsi setup itts, data and pool so just set desc fields */
for (i = 0; i < session->cmds_max; i++) {
ctask = session->cmds[i];
iser_ctask = ctask->dd_data;
ctask->hdr = (struct iscsi_cmd *)&iser_ctask->desc.iscsi_header;
ctask->hdr_max = sizeof(iser_ctask->desc.iscsi_header);
task = session->cmds[i];
iser_task = task->dd_data;
task->hdr = (struct iscsi_cmd *)&iser_task->desc.iscsi_header;
task->hdr_max = sizeof(iser_task->desc.iscsi_header);
}
return cls_session;