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提交 9c19a7d0 编写于 作者: M Mike Christie 提交者： James Bottomley
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[SCSI] libiscsi: rename iscsi_cmd_task to iscsi_task 

This is the second part of the iscsi task merging, and
all it does it rename iscsi_cmd_task to iscsi_task and
mtask/ctask to just task.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
上级 2747fdb2
隐藏空白更改
内联 并排
Showing with 273 addition and 271 deletion
drivers/scsi/libiscsi.c
浏览文件 @ 9c19a7d0
......@@ -88,61 +88,61 @@ iscsi_update_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr)
}
EXPORT_SYMBOL_GPL(iscsi_update_cmdsn);
void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *ctask,
void iscsi_prep_unsolicit_data_pdu(struct iscsi_task *task,
struct iscsi_data *hdr)
{
struct iscsi_conn *conn = ctask->conn;
struct iscsi_conn *conn = task->conn;
memset(hdr, 0, sizeof(struct iscsi_data));
hdr->ttt = cpu_to_be32(ISCSI_RESERVED_TAG);
hdr->datasn = cpu_to_be32(ctask->unsol_datasn);
ctask->unsol_datasn++;
hdr->datasn = cpu_to_be32(task->unsol_datasn);
task->unsol_datasn++;
hdr->opcode = ISCSI_OP_SCSI_DATA_OUT;
memcpy(hdr->lun, ctask->hdr->lun, sizeof(hdr->lun));
memcpy(hdr->lun, task->hdr->lun, sizeof(hdr->lun));
hdr->itt = ctask->hdr->itt;
hdr->itt = task->hdr->itt;
hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
hdr->offset = cpu_to_be32(ctask->unsol_offset);
hdr->offset = cpu_to_be32(task->unsol_offset);
if (ctask->unsol_count > conn->max_xmit_dlength) {
if (task->unsol_count > conn->max_xmit_dlength) {
hton24(hdr->dlength, conn->max_xmit_dlength);
ctask->data_count = conn->max_xmit_dlength;
ctask->unsol_offset += ctask->data_count;
task->data_count = conn->max_xmit_dlength;
task->unsol_offset += task->data_count;
hdr->flags = 0;
} else {
hton24(hdr->dlength, ctask->unsol_count);
ctask->data_count = ctask->unsol_count;
hton24(hdr->dlength, task->unsol_count);
task->data_count = task->unsol_count;
hdr->flags = ISCSI_FLAG_CMD_FINAL;
}
}
EXPORT_SYMBOL_GPL(iscsi_prep_unsolicit_data_pdu);
static int iscsi_add_hdr(struct iscsi_cmd_task *ctask, unsigned len)
static int iscsi_add_hdr(struct iscsi_task *task, unsigned len)
{
unsigned exp_len = ctask->hdr_len + len;
unsigned exp_len = task->hdr_len + len;
if (exp_len > ctask->hdr_max) {
if (exp_len > task->hdr_max) {
WARN_ON(1);
return -EINVAL;
}
WARN_ON(len & (ISCSI_PAD_LEN - 1)); /* caller must pad the AHS */
ctask->hdr_len = exp_len;
task->hdr_len = exp_len;
return 0;
}
/*
* make an extended cdb AHS
*/
static int iscsi_prep_ecdb_ahs(struct iscsi_cmd_task *ctask)
static int iscsi_prep_ecdb_ahs(struct iscsi_task *task)
{
struct scsi_cmnd *cmd = ctask->sc;
struct scsi_cmnd *cmd = task->sc;
unsigned rlen, pad_len;
unsigned short ahslength;
struct iscsi_ecdb_ahdr *ecdb_ahdr;
int rc;
ecdb_ahdr = iscsi_next_hdr(ctask);
ecdb_ahdr = iscsi_next_hdr(task);
rlen = cmd->cmd_len - ISCSI_CDB_SIZE;
BUG_ON(rlen > sizeof(ecdb_ahdr->ecdb));
......@@ -150,7 +150,7 @@ static int iscsi_prep_ecdb_ahs(struct iscsi_cmd_task *ctask)
pad_len = iscsi_padding(rlen);
rc = iscsi_add_hdr(ctask, sizeof(ecdb_ahdr->ahslength) +
rc = iscsi_add_hdr(task, sizeof(ecdb_ahdr->ahslength) +
sizeof(ecdb_ahdr->ahstype) + ahslength + pad_len);
if (rc)
return rc;
......@@ -165,19 +165,19 @@ static int iscsi_prep_ecdb_ahs(struct iscsi_cmd_task *ctask)
debug_scsi("iscsi_prep_ecdb_ahs: varlen_cdb_len %d "
"rlen %d pad_len %d ahs_length %d iscsi_headers_size %u\n",
cmd->cmd_len, rlen, pad_len, ahslength, ctask->hdr_len);
cmd->cmd_len, rlen, pad_len, ahslength, task->hdr_len);
return 0;
}
static int iscsi_prep_bidi_ahs(struct iscsi_cmd_task *ctask)
static int iscsi_prep_bidi_ahs(struct iscsi_task *task)
{
struct scsi_cmnd *sc = ctask->sc;
struct scsi_cmnd *sc = task->sc;
struct iscsi_rlength_ahdr *rlen_ahdr;
int rc;
rlen_ahdr = iscsi_next_hdr(ctask);
rc = iscsi_add_hdr(ctask, sizeof(*rlen_ahdr));
rlen_ahdr = iscsi_next_hdr(task);
rc = iscsi_add_hdr(task, sizeof(*rlen_ahdr));
if (rc)
return rc;
......@@ -197,28 +197,28 @@ static int iscsi_prep_bidi_ahs(struct iscsi_cmd_task *ctask)
/**
* iscsi_prep_scsi_cmd_pdu - prep iscsi scsi cmd pdu
* @ctask: iscsi task
* @task: iscsi task
*
* Prep basic iSCSI PDU fields for a scsi cmd pdu. The LLD should set
* fields like dlength or final based on how much data it sends
*/
static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
{
struct iscsi_conn *conn = ctask->conn;
struct iscsi_conn *conn = task->conn;
struct iscsi_session *session = conn->session;
struct iscsi_cmd *hdr = ctask->hdr;
struct scsi_cmnd *sc = ctask->sc;
struct iscsi_cmd *hdr = task->hdr;
struct scsi_cmnd *sc = task->sc;
unsigned hdrlength, cmd_len;
int rc;
ctask->hdr_len = 0;
rc = iscsi_add_hdr(ctask, sizeof(*hdr));
task->hdr_len = 0;
rc = iscsi_add_hdr(task, sizeof(*hdr));
if (rc)
return rc;
hdr->opcode = ISCSI_OP_SCSI_CMD;
hdr->flags = ISCSI_ATTR_SIMPLE;
int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
hdr->itt = build_itt(ctask->itt, session->age);
hdr->itt = build_itt(task->itt, session->age);
hdr->cmdsn = cpu_to_be32(session->cmdsn);
session->cmdsn++;
hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
......@@ -226,17 +226,17 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
if (cmd_len < ISCSI_CDB_SIZE)
memset(&hdr->cdb[cmd_len], 0, ISCSI_CDB_SIZE - cmd_len);
else if (cmd_len > ISCSI_CDB_SIZE) {
rc = iscsi_prep_ecdb_ahs(ctask);
rc = iscsi_prep_ecdb_ahs(task);
if (rc)
return rc;
cmd_len = ISCSI_CDB_SIZE;
}
memcpy(hdr->cdb, sc->cmnd, cmd_len);
ctask->imm_count = 0;
task->imm_count = 0;
if (scsi_bidi_cmnd(sc)) {
hdr->flags |= ISCSI_FLAG_CMD_READ;
rc = iscsi_prep_bidi_ahs(ctask);
rc = iscsi_prep_bidi_ahs(task);
if (rc)
return rc;
}
......@@ -258,28 +258,28 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
*
* pad_count bytes to be sent as zero-padding
*/
ctask->unsol_count = 0;
ctask->unsol_offset = 0;
ctask->unsol_datasn = 0;
task->unsol_count = 0;
task->unsol_offset = 0;
task->unsol_datasn = 0;
if (session->imm_data_en) {
if (out_len >= session->first_burst)
ctask->imm_count = min(session->first_burst,
task->imm_count = min(session->first_burst,
conn->max_xmit_dlength);
else
ctask->imm_count = min(out_len,
task->imm_count = min(out_len,
conn->max_xmit_dlength);
hton24(hdr->dlength, ctask->imm_count);
hton24(hdr->dlength, task->imm_count);
} else
zero_data(hdr->dlength);
if (!session->initial_r2t_en) {
ctask->unsol_count = min(session->first_burst, out_len)
- ctask->imm_count;
ctask->unsol_offset = ctask->imm_count;
task->unsol_count = min(session->first_burst, out_len)
- task->imm_count;
task->unsol_offset = task->imm_count;
}
if (!ctask->unsol_count)
if (!task->unsol_count)
/* No unsolicit Data-Out's */
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
} else {
......@@ -292,7 +292,7 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
}
/* calculate size of additional header segments (AHSs) */
hdrlength = ctask->hdr_len - sizeof(*hdr);
hdrlength = task->hdr_len - sizeof(*hdr);
WARN_ON(hdrlength & (ISCSI_PAD_LEN-1));
hdrlength /= ISCSI_PAD_LEN;
......@@ -301,17 +301,17 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
hdr->hlength = hdrlength & 0xFF;
if (conn->session->tt->init_task &&
conn->session->tt->init_task(ctask))
conn->session->tt->init_task(task))
return -EIO;
ctask->state = ISCSI_TASK_RUNNING;
list_move_tail(&ctask->running, &conn->run_list);
task->state = ISCSI_TASK_RUNNING;
list_move_tail(&task->running, &conn->run_list);
conn->scsicmd_pdus_cnt++;
debug_scsi("iscsi prep [%s cid %d sc %p cdb 0x%x itt 0x%x len %d "
"bidi_len %d cmdsn %d win %d]\n", scsi_bidi_cmnd(sc) ?
"bidirectional" : sc->sc_data_direction == DMA_TO_DEVICE ?
"write" : "read", conn->id, sc, sc->cmnd[0], ctask->itt,
"write" : "read", conn->id, sc, sc->cmnd[0], task->itt,
scsi_bufflen(sc),
scsi_bidi_cmnd(sc) ? scsi_in(sc)->length : 0,
session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1);
......@@ -320,37 +320,37 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
/**
* iscsi_complete_command - finish a task
* @ctask: iscsi cmd task
* @task: iscsi cmd task
*
* Must be called with session lock.
* This function returns the scsi command to scsi-ml or cleans
* up mgmt tasks then returns the task to the pool.
*/
static void iscsi_complete_command(struct iscsi_cmd_task *ctask)
static void iscsi_complete_command(struct iscsi_task *task)
{
struct iscsi_conn *conn = ctask->conn;
struct iscsi_conn *conn = task->conn;
struct iscsi_session *session = conn->session;
struct scsi_cmnd *sc = ctask->sc;
struct scsi_cmnd *sc = task->sc;
list_del_init(&ctask->running);
ctask->state = ISCSI_TASK_COMPLETED;
ctask->sc = NULL;
list_del_init(&task->running);
task->state = ISCSI_TASK_COMPLETED;
task->sc = NULL;
if (conn->ctask == ctask)
conn->ctask = NULL;
if (conn->task == task)
conn->task = NULL;
/*
* login ctask is preallocated so do not free
* login task is preallocated so do not free
*/
if (conn->login_ctask == ctask)
if (conn->login_task == task)
return;
__kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*));
__kfifo_put(session->cmdpool.queue, (void*)&task, sizeof(void*));
if (conn->ping_ctask == ctask)
conn->ping_ctask = NULL;
if (conn->ping_task == task)
conn->ping_task = NULL;
if (sc) {
ctask->sc = NULL;
task->sc = NULL;
/* SCSI eh reuses commands to verify us */
sc->SCp.ptr = NULL;
/*
......@@ -362,47 +362,47 @@ static void iscsi_complete_command(struct iscsi_cmd_task *ctask)
}
}
static void __iscsi_get_ctask(struct iscsi_cmd_task *ctask)
static void __iscsi_get_task(struct iscsi_task *task)
{
atomic_inc(&ctask->refcount);
atomic_inc(&task->refcount);
}
static void __iscsi_put_ctask(struct iscsi_cmd_task *ctask)
static void __iscsi_put_task(struct iscsi_task *task)
{
if (atomic_dec_and_test(&ctask->refcount))
iscsi_complete_command(ctask);
if (atomic_dec_and_test(&task->refcount))
iscsi_complete_command(task);
}
void iscsi_put_ctask(struct iscsi_cmd_task *ctask)
void iscsi_put_task(struct iscsi_task *task)
{
struct iscsi_session *session = ctask->conn->session;
struct iscsi_session *session = task->conn->session;
spin_lock_bh(&session->lock);
__iscsi_put_ctask(ctask);
__iscsi_put_task(task);
spin_unlock_bh(&session->lock);
}
EXPORT_SYMBOL_GPL(iscsi_put_ctask);
EXPORT_SYMBOL_GPL(iscsi_put_task);
/*
* session lock must be held
*/
static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
static void fail_command(struct iscsi_conn *conn, struct iscsi_task *task,
int err)
{
struct scsi_cmnd *sc;
sc = ctask->sc;
sc = task->sc;
if (!sc)
return;
if (ctask->state == ISCSI_TASK_PENDING)
if (task->state == ISCSI_TASK_PENDING)
/*
* cmd never made it to the xmit thread, so we should not count
* the cmd in the sequencing
*/
conn->session->queued_cmdsn--;
else
conn->session->tt->cleanup_task(conn, ctask);
conn->session->tt->cleanup_task(conn, task);
sc->result = err;
......@@ -413,17 +413,17 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
scsi_in(sc)->resid = scsi_in(sc)->length;
}
if (conn->ctask == ctask)
conn->ctask = NULL;
if (conn->task == task)
conn->task = NULL;
/* release ref from queuecommand */
__iscsi_put_ctask(ctask);
__iscsi_put_task(task);
}
static int iscsi_prep_mgmt_task(struct iscsi_conn *conn,
struct iscsi_cmd_task *ctask)
struct iscsi_task *task)
{
struct iscsi_session *session = conn->session;
struct iscsi_hdr *hdr = (struct iscsi_hdr *)ctask->hdr;
struct iscsi_hdr *hdr = (struct iscsi_hdr *)task->hdr;
struct iscsi_nopout *nop = (struct iscsi_nopout *)hdr;
if (conn->session->state == ISCSI_STATE_LOGGING_OUT)
......@@ -437,7 +437,7 @@ static int iscsi_prep_mgmt_task(struct iscsi_conn *conn,
*/
nop->cmdsn = cpu_to_be32(session->cmdsn);
if (hdr->itt != RESERVED_ITT) {
hdr->itt = build_itt(ctask->itt, session->age);
hdr->itt = build_itt(task->itt, session->age);
/*
* TODO: We always use immediate, so we never hit this.
* If we start to send tmfs or nops as non-immediate then
......@@ -451,24 +451,24 @@ static int iscsi_prep_mgmt_task(struct iscsi_conn *conn,
}
if (session->tt->init_task)
session->tt->init_task(ctask);
session->tt->init_task(task);
if ((hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT)
session->state = ISCSI_STATE_LOGGING_OUT;
list_move_tail(&ctask->running, &conn->mgmt_run_list);
list_move_tail(&task->running, &conn->mgmt_run_list);
debug_scsi("mgmtpdu [op 0x%x hdr->itt 0x%x datalen %d]\n",
hdr->opcode & ISCSI_OPCODE_MASK, hdr->itt,
ctask->data_count);
task->data_count);
return 0;
}
static struct iscsi_cmd_task *
static struct iscsi_task *
__iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
char *data, uint32_t data_size)
{
struct iscsi_session *session = conn->session;
struct iscsi_cmd_task *ctask;
struct iscsi_task *task;
if (session->state == ISCSI_STATE_TERMINATE)
return NULL;
......@@ -481,18 +481,18 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
* Same task can be used. Same ITT must be used.
* Note that login_task is preallocated at conn_create().
*/
ctask = conn->login_ctask;
task = conn->login_task;
else {
BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE);
BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED);
if (!__kfifo_get(session->cmdpool.queue,
(void*)&ctask, sizeof(void*)))
(void*)&task, sizeof(void*)))
return NULL;
if ((hdr->opcode == (ISCSI_OP_NOOP_OUT | ISCSI_OP_IMMEDIATE)) &&
hdr->ttt == RESERVED_ITT) {
conn->ping_ctask = ctask;
conn->ping_task = task;
conn->last_ping = jiffies;
}
}
......@@ -501,33 +501,33 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
* released by the lld when it has transmitted the task for
* pdus we do not expect a response for.
*/
atomic_set(&ctask->refcount, 1);
ctask->conn = conn;
ctask->sc = NULL;
atomic_set(&task->refcount, 1);
task->conn = conn;
task->sc = NULL;
if (data_size) {
memcpy(ctask->data, data, data_size);
ctask->data_count = data_size;
memcpy(task->data, data, data_size);
task->data_count = data_size;
} else
ctask->data_count = 0;
task->data_count = 0;
memcpy(ctask->hdr, hdr, sizeof(struct iscsi_hdr));
INIT_LIST_HEAD(&ctask->running);
list_add_tail(&ctask->running, &conn->mgmtqueue);
memcpy(task->hdr, hdr, sizeof(struct iscsi_hdr));
INIT_LIST_HEAD(&task->running);
list_add_tail(&task->running, &conn->mgmtqueue);
if (session->tt->caps & CAP_DATA_PATH_OFFLOAD) {
if (iscsi_prep_mgmt_task(conn, ctask)) {
__iscsi_put_ctask(ctask);
if (iscsi_prep_mgmt_task(conn, task)) {
__iscsi_put_task(task);
return NULL;
}
if (session->tt->xmit_task(ctask))
ctask = NULL;
if (session->tt->xmit_task(task))
task = NULL;
} else
scsi_queue_work(conn->session->host, &conn->xmitwork);
return ctask;
return task;
}
int iscsi_conn_send_pdu(struct iscsi_cls_conn *cls_conn, struct iscsi_hdr *hdr,
......@@ -549,20 +549,20 @@ EXPORT_SYMBOL_GPL(iscsi_conn_send_pdu);
* iscsi_cmd_rsp - SCSI Command Response processing
* @conn: iscsi connection
* @hdr: iscsi header
* @ctask: scsi command task
* @task: scsi command task
* @data: cmd data buffer
* @datalen: len of buffer
*
* iscsi_cmd_rsp sets up the scsi_cmnd fields based on the PDU and
* then completes the command and ctask.
* then completes the command and task.
**/
static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
struct iscsi_cmd_task *ctask, char *data,
struct iscsi_task *task, char *data,
int datalen)
{
struct iscsi_cmd_rsp *rhdr = (struct iscsi_cmd_rsp *)hdr;
struct iscsi_session *session = conn->session;
struct scsi_cmnd *sc = ctask->sc;
struct scsi_cmnd *sc = task->sc;
iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr);
conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1;
......@@ -622,10 +622,10 @@ static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
}
out:
debug_scsi("done [sc %lx res %d itt 0x%x]\n",
(long)sc, sc->result, ctask->itt);
(long)sc, sc->result, task->itt);
conn->scsirsp_pdus_cnt++;
__iscsi_put_ctask(ctask);
__iscsi_put_task(task);
}
static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
......@@ -650,9 +650,9 @@ static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
{
struct iscsi_nopout hdr;
struct iscsi_cmd_task *ctask;
struct iscsi_task *task;
if (!rhdr && conn->ping_ctask)
if (!rhdr && conn->ping_task)
return;
memset(&hdr, 0, sizeof(struct iscsi_nopout));
......@@ -666,8 +666,8 @@ static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
} else
hdr.ttt = RESERVED_ITT;
ctask = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0);
if (!ctask)
task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0);
if (!task)
iscsi_conn_printk(KERN_ERR, conn, "Could not send nopout\n");
}
......@@ -712,7 +712,7 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
{
struct iscsi_session *session = conn->session;
int opcode = hdr->opcode & ISCSI_OPCODE_MASK, rc = 0;
struct iscsi_cmd_task *ctask;
struct iscsi_task *task;
uint32_t itt;
conn->last_recv = jiffies;
......@@ -758,27 +758,27 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
goto out;
}
ctask = session->cmds[itt];
task = session->cmds[itt];
switch(opcode) {
case ISCSI_OP_SCSI_CMD_RSP:
if (!ctask->sc) {
if (!task->sc) {
rc = ISCSI_ERR_NO_SCSI_CMD;
break;
}
BUG_ON((void*)ctask != ctask->sc->SCp.ptr);
iscsi_scsi_cmd_rsp(conn, hdr, ctask, data, datalen);
BUG_ON((void*)task != task->sc->SCp.ptr);
iscsi_scsi_cmd_rsp(conn, hdr, task, data, datalen);
break;
case ISCSI_OP_SCSI_DATA_IN:
if (!ctask->sc) {
if (!task->sc) {
rc = ISCSI_ERR_NO_SCSI_CMD;
break;
}
BUG_ON((void*)ctask != ctask->sc->SCp.ptr);
BUG_ON((void*)task != task->sc->SCp.ptr);
if (hdr->flags & ISCSI_FLAG_DATA_STATUS) {
conn->scsirsp_pdus_cnt++;
iscsi_update_cmdsn(session,
(struct iscsi_nopin*) hdr);
__iscsi_put_ctask(ctask);
__iscsi_put_task(task);
}
break;
case ISCSI_OP_R2T:
......@@ -808,7 +808,7 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
}
iscsi_tmf_rsp(conn, hdr);
__iscsi_put_ctask(ctask);
__iscsi_put_task(task);
break;
case ISCSI_OP_NOOP_IN:
iscsi_update_cmdsn(session, (struct iscsi_nopin*)hdr);
......@@ -818,13 +818,15 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
}
conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
if (conn->ping_ctask != ctask)
if (conn->ping_task != task)
/*
* If this is not in response to one of our
* nops then it must be from userspace.
*/
goto recv_pdu;
__iscsi_put_ctask(ctask);
mod_timer(&conn->transport_timer, jiffies + conn->recv_timeout);
__iscsi_put_task(task);
break;
default:
rc = ISCSI_ERR_BAD_OPCODE;
......@@ -836,7 +838,7 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
recv_pdu:
if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
rc = ISCSI_ERR_CONN_FAILED;
__iscsi_put_ctask(ctask);
__iscsi_put_task(task);
return rc;
}
......@@ -855,7 +857,7 @@ EXPORT_SYMBOL_GPL(iscsi_complete_pdu);
int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt)
{
struct iscsi_session *session = conn->session;
struct iscsi_cmd_task *ctask;
struct iscsi_task *task;
uint32_t i;
if (itt == RESERVED_ITT)
......@@ -878,11 +880,11 @@ int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt)
return ISCSI_ERR_BAD_ITT;
}
ctask = session->cmds[i];
if (ctask->sc && ctask->sc->SCp.phase != session->age) {
task = session->cmds[i];
if (task->sc && task->sc->SCp.phase != session->age) {
iscsi_conn_printk(KERN_ERR, conn,
"iscsi: ctask's session age %d, "
"expected %d\n", ctask->sc->SCp.phase,
"iscsi: task's session age %d, "
"expected %d\n", task->sc->SCp.phase,
session->age);
return ISCSI_ERR_SESSION_FAILED;
}
......@@ -890,11 +892,11 @@ int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt)
}
EXPORT_SYMBOL_GPL(iscsi_verify_itt);
struct iscsi_cmd_task *
struct iscsi_task *
iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt)
{
struct iscsi_session *session = conn->session;
struct iscsi_cmd_task *ctask;
struct iscsi_task *task;
uint32_t i;
if (iscsi_verify_itt(conn, itt))
......@@ -907,14 +909,14 @@ iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt)
if (i >= session->cmds_max)
return NULL;
ctask = session->cmds[i];
if (!ctask->sc)
task = session->cmds[i];
if (!task->sc)
return NULL;
if (ctask->sc->SCp.phase != session->age)
if (task->sc->SCp.phase != session->age)
return NULL;
return ctask;
return task;
}
EXPORT_SYMBOL_GPL(iscsi_itt_to_ctask);
......@@ -955,38 +957,38 @@ static int iscsi_check_cmdsn_window_closed(struct iscsi_conn *conn)
return 0;
}
static int iscsi_xmit_ctask(struct iscsi_conn *conn)
static int iscsi_xmit_task(struct iscsi_conn *conn)
{
struct iscsi_cmd_task *ctask = conn->ctask;
struct iscsi_task *task = conn->task;
int rc;
__iscsi_get_ctask(ctask);
__iscsi_get_task(task);
spin_unlock_bh(&conn->session->lock);
rc = conn->session->tt->xmit_task(ctask);
rc = conn->session->tt->xmit_task(task);
spin_lock_bh(&conn->session->lock);
__iscsi_put_ctask(ctask);
__iscsi_put_task(task);
if (!rc)
/* done with this ctask */
conn->ctask = NULL;
/* done with this task */
conn->task = NULL;
return rc;
}
/**
* iscsi_requeue_ctask - requeue ctask to run from session workqueue
* @ctask: ctask to requeue
* iscsi_requeue_task - requeue task to run from session workqueue
* @task: task to requeue
*
* LLDs that need to run a ctask from the session workqueue should call
* LLDs that need to run a task from the session workqueue should call
* this. The session lock must be held. This should only be called
* by software drivers.
*/
void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask)
void iscsi_requeue_task(struct iscsi_task *task)
{
struct iscsi_conn *conn = ctask->conn;
struct iscsi_conn *conn = task->conn;
list_move_tail(&ctask->running, &conn->requeue);
list_move_tail(&task->running, &conn->requeue);
scsi_queue_work(conn->session->host, &conn->xmitwork);
}
EXPORT_SYMBOL_GPL(iscsi_requeue_ctask);
EXPORT_SYMBOL_GPL(iscsi_requeue_task);
/**
* iscsi_data_xmit - xmit any command into the scheduled connection
......@@ -1008,8 +1010,8 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
return -ENODATA;
}
if (conn->ctask) {
rc = iscsi_xmit_ctask(conn);
if (conn->task) {
rc = iscsi_xmit_task(conn);
if (rc)
goto again;
}
......@@ -1021,14 +1023,14 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
*/
check_mgmt:
while (!list_empty(&conn->mgmtqueue)) {
conn->ctask = list_entry(conn->mgmtqueue.next,
struct iscsi_cmd_task, running);
if (iscsi_prep_mgmt_task(conn, conn->ctask)) {
__iscsi_put_ctask(conn->ctask);
conn->ctask = NULL;
conn->task = list_entry(conn->mgmtqueue.next,
struct iscsi_task, running);
if (iscsi_prep_mgmt_task(conn, conn->task)) {
__iscsi_put_task(conn->task);
conn->task = NULL;
continue;
}
rc = iscsi_xmit_ctask(conn);
rc = iscsi_xmit_task(conn);
if (rc)
goto again;
}
......@@ -1038,21 +1040,21 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
if (conn->tmf_state == TMF_QUEUED)
break;
conn->ctask = list_entry(conn->xmitqueue.next,
struct iscsi_cmd_task, running);
conn->task = list_entry(conn->xmitqueue.next,
struct iscsi_task, running);
if (conn->session->state == ISCSI_STATE_LOGGING_OUT) {
fail_command(conn, conn->ctask, DID_IMM_RETRY << 16);
fail_command(conn, conn->task, DID_IMM_RETRY << 16);
continue;
}
if (iscsi_prep_scsi_cmd_pdu(conn->ctask)) {
fail_command(conn, conn->ctask, DID_ABORT << 16);
if (iscsi_prep_scsi_cmd_pdu(conn->task)) {
fail_command(conn, conn->task, DID_ABORT << 16);
continue;
}
rc = iscsi_xmit_ctask(conn);
rc = iscsi_xmit_task(conn);
if (rc)
goto again;
/*
* we could continuously get new ctask requests so
* we could continuously get new task requests so
* we need to check the mgmt queue for nops that need to
* be sent to aviod starvation
*/
......@@ -1070,11 +1072,11 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
if (conn->session->state == ISCSI_STATE_LOGGING_OUT)
break;
conn->ctask = list_entry(conn->requeue.next,
struct iscsi_cmd_task, running);
conn->ctask->state = ISCSI_TASK_RUNNING;
conn->task = list_entry(conn->requeue.next,
struct iscsi_task, running);
conn->task->state = ISCSI_TASK_RUNNING;
list_move_tail(conn->requeue.next, &conn->run_list);
rc = iscsi_xmit_ctask(conn);
rc = iscsi_xmit_task(conn);
if (rc)
goto again;
if (!list_empty(&conn->mgmtqueue))
......@@ -1123,7 +1125,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
int reason = 0;
struct iscsi_session *session;
struct iscsi_conn *conn;
struct iscsi_cmd_task *ctask = NULL;
struct iscsi_task *task = NULL;
sc->scsi_done = done;
sc->result = 0;
......@@ -1191,31 +1193,31 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
goto reject;
}
if (!__kfifo_get(session->cmdpool.queue, (void*)&ctask,
if (!__kfifo_get(session->cmdpool.queue, (void*)&task,
sizeof(void*))) {
reason = FAILURE_OOM;
goto reject;
}
sc->SCp.phase = session->age;
sc->SCp.ptr = (char *)ctask;
sc->SCp.ptr = (char *)task;
atomic_set(&ctask->refcount, 1);
ctask->state = ISCSI_TASK_PENDING;
ctask->conn = conn;
ctask->sc = sc;
INIT_LIST_HEAD(&ctask->running);
list_add_tail(&ctask->running, &conn->xmitqueue);
atomic_set(&task->refcount, 1);
task->state = ISCSI_TASK_PENDING;
task->conn = conn;
task->sc = sc;
INIT_LIST_HEAD(&task->running);
list_add_tail(&task->running, &conn->xmitqueue);
if (session->tt->caps & CAP_DATA_PATH_OFFLOAD) {
if (iscsi_prep_scsi_cmd_pdu(ctask)) {
if (iscsi_prep_scsi_cmd_pdu(task)) {
sc->result = DID_ABORT << 16;
sc->scsi_done = NULL;
iscsi_complete_command(ctask);
iscsi_complete_command(task);
goto fault;
}
if (session->tt->xmit_task(ctask)) {
if (session->tt->xmit_task(task)) {
sc->scsi_done = NULL;
iscsi_complete_command(ctask);
iscsi_complete_command(task);
reason = FAILURE_SESSION_NOT_READY;
goto reject;
}
......@@ -1336,16 +1338,16 @@ static void iscsi_tmf_timedout(unsigned long data)
spin_unlock(&session->lock);
}
static int iscsi_exec_ctask_mgmt_fn(struct iscsi_conn *conn,
static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
struct iscsi_tm *hdr, int age,
int timeout)
{
struct iscsi_session *session = conn->session;
struct iscsi_cmd_task *ctask;
struct iscsi_task *task;
ctask = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)hdr,
task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)hdr,
NULL, 0);
if (!ctask) {
if (!task) {
spin_unlock_bh(&session->lock);
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
spin_lock_bh(&session->lock);
......@@ -1379,7 +1381,7 @@ static int iscsi_exec_ctask_mgmt_fn(struct iscsi_conn *conn,
mutex_lock(&session->eh_mutex);
spin_lock_bh(&session->lock);
/* if the session drops it will clean up the ctask */
/* if the session drops it will clean up the task */
if (age != session->age ||
session->state != ISCSI_STATE_LOGGED_IN)
return -ENOTCONN;
......@@ -1393,34 +1395,34 @@ static int iscsi_exec_ctask_mgmt_fn(struct iscsi_conn *conn,
static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
int error)
{
struct iscsi_cmd_task *ctask, *tmp;
struct iscsi_task *task, *tmp;
if (conn->ctask && (conn->ctask->sc->device->lun == lun || lun == -1))
conn->ctask = NULL;
if (conn->task && (conn->task->sc->device->lun == lun || lun == -1))
conn->task = NULL;
/* flush pending */
list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) {
if (lun == ctask->sc->device->lun || lun == -1) {
list_for_each_entry_safe(task, tmp, &conn->xmitqueue, running) {
if (lun == task->sc->device->lun || lun == -1) {
debug_scsi("failing pending sc %p itt 0x%x\n",
ctask->sc, ctask->itt);
fail_command(conn, ctask, error << 16);
task->sc, task->itt);
fail_command(conn, task, error << 16);
}
}
list_for_each_entry_safe(ctask, tmp, &conn->requeue, running) {
if (lun == ctask->sc->device->lun || lun == -1) {
list_for_each_entry_safe(task, tmp, &conn->requeue, running) {
if (lun == task->sc->device->lun || lun == -1) {
debug_scsi("failing requeued sc %p itt 0x%x\n",
ctask->sc, ctask->itt);
fail_command(conn, ctask, error << 16);
task->sc, task->itt);
fail_command(conn, task, error << 16);
}
}
/* fail all other running */
list_for_each_entry_safe(ctask, tmp, &conn->run_list, running) {
if (lun == ctask->sc->device->lun || lun == -1) {
list_for_each_entry_safe(task, tmp, &conn->run_list, running) {
if (lun == task->sc->device->lun || lun == -1) {
debug_scsi("failing in progress sc %p itt 0x%x\n",
ctask->sc, ctask->itt);
fail_command(conn, ctask, DID_BUS_BUSY << 16);
task->sc, task->itt);
fail_command(conn, task, DID_BUS_BUSY << 16);
}
}
}
......@@ -1486,7 +1488,7 @@ static enum scsi_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
jiffies))
rc = EH_RESET_TIMER;
/* if in the middle of checking the transport then give us more time */
if (conn->ping_ctask)
if (conn->ping_task)
rc = EH_RESET_TIMER;
done:
spin_unlock(&session->lock);
......@@ -1510,7 +1512,7 @@ static void iscsi_check_transport_timeouts(unsigned long data)
recv_timeout *= HZ;
last_recv = conn->last_recv;
if (conn->ping_ctask &&
if (conn->ping_task &&
time_before_eq(conn->last_ping + (conn->ping_timeout * HZ),
jiffies)) {
iscsi_conn_printk(KERN_ERR, conn, "ping timeout of %d secs "
......@@ -1536,16 +1538,16 @@ static void iscsi_check_transport_timeouts(unsigned long data)
spin_unlock(&session->lock);
}
static void iscsi_prep_abort_ctask_pdu(struct iscsi_cmd_task *ctask,
static void iscsi_prep_abort_task_pdu(struct iscsi_task *task,
struct iscsi_tm *hdr)
{
memset(hdr, 0, sizeof(*hdr));
hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE;
hdr->flags = ISCSI_TM_FUNC_ABORT_TASK & ISCSI_FLAG_TM_FUNC_MASK;
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
memcpy(hdr->lun, ctask->hdr->lun, sizeof(hdr->lun));
hdr->rtt = ctask->hdr->itt;
hdr->refcmdsn = ctask->hdr->cmdsn;
memcpy(hdr->lun, task->hdr->lun, sizeof(hdr->lun));
hdr->rtt = task->hdr->itt;
hdr->refcmdsn = task->hdr->cmdsn;
}
int iscsi_eh_abort(struct scsi_cmnd *sc)
......@@ -1553,7 +1555,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
struct iscsi_cls_session *cls_session;
struct iscsi_session *session;
struct iscsi_conn *conn;
struct iscsi_cmd_task *ctask;
struct iscsi_task *task;
struct iscsi_tm *hdr;
int rc, age;
......@@ -1588,17 +1590,17 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
conn->eh_abort_cnt++;
age = session->age;
ctask = (struct iscsi_cmd_task *)sc->SCp.ptr;
debug_scsi("aborting [sc %p itt 0x%x]\n", sc, ctask->itt);
task = (struct iscsi_task *)sc->SCp.ptr;
debug_scsi("aborting [sc %p itt 0x%x]\n", sc, task->itt);
/* ctask completed before time out */
if (!ctask->sc) {
/* task completed before time out */
if (!task->sc) {
debug_scsi("sc completed while abort in progress\n");
goto success;
}
if (ctask->state == ISCSI_TASK_PENDING) {
fail_command(conn, ctask, DID_ABORT << 16);
if (task->state == ISCSI_TASK_PENDING) {
fail_command(conn, task, DID_ABORT << 16);
goto success;
}
......@@ -1608,9 +1610,9 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
conn->tmf_state = TMF_QUEUED;
hdr = &conn->tmhdr;
iscsi_prep_abort_ctask_pdu(ctask, hdr);
iscsi_prep_abort_task_pdu(task, hdr);
if (iscsi_exec_ctask_mgmt_fn(conn, hdr, age, session->abort_timeout)) {
if (iscsi_exec_task_mgmt_fn(conn, hdr, age, session->abort_timeout)) {
rc = FAILED;
goto failed;
}
......@@ -1620,11 +1622,11 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
spin_unlock_bh(&session->lock);
iscsi_suspend_tx(conn);
/*
* clean up ctask if aborted. grab the recv lock as a writer
* clean up task if aborted. grab the recv lock as a writer
*/
write_lock_bh(conn->recv_lock);
spin_lock(&session->lock);
fail_command(conn, ctask, DID_ABORT << 16);
fail_command(conn, task, DID_ABORT << 16);
conn->tmf_state = TMF_INITIAL;
spin_unlock(&session->lock);
write_unlock_bh(conn->recv_lock);
......@@ -1637,7 +1639,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
case TMF_NOT_FOUND:
if (!sc->SCp.ptr) {
conn->tmf_state = TMF_INITIAL;
/* ctask completed before tmf abort response */
/* task completed before tmf abort response */
debug_scsi("sc completed while abort in progress\n");
goto success;
}
......@@ -1650,7 +1652,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
success:
spin_unlock_bh(&session->lock);
success_unlocked:
debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, ctask->itt);
debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, task->itt);
mutex_unlock(&session->eh_mutex);
return SUCCESS;
......@@ -1658,7 +1660,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
spin_unlock_bh(&session->lock);
failed_unlocked:
debug_scsi("abort failed [sc %p itt 0x%x]\n", sc,
ctask ? ctask->itt : 0);
task ? task->itt : 0);
mutex_unlock(&session->eh_mutex);
return FAILED;
}
......@@ -1705,7 +1707,7 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc)
hdr = &conn->tmhdr;
iscsi_prep_lun_reset_pdu(sc, hdr);
if (iscsi_exec_ctask_mgmt_fn(conn, hdr, session->age,
if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age,
session->lu_reset_timeout)) {
rc = FAILED;
goto unlock;
......@@ -1886,7 +1888,7 @@ EXPORT_SYMBOL_GPL(iscsi_host_free);
* @iscsit: iscsi transport template
* @shost: scsi host
* @cmds_max: session can queue
* @cmd_ctask_size: LLD ctask private data size
* @cmd_task_size: LLD task private data size
* @initial_cmdsn: initial CmdSN
*
* This can be used by software iscsi_transports that allocate
......@@ -1894,7 +1896,7 @@ EXPORT_SYMBOL_GPL(iscsi_host_free);
*/
struct iscsi_cls_session *
iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
uint16_t scsi_cmds_max, int cmd_ctask_size,
uint16_t scsi_cmds_max, int cmd_task_size,
uint32_t initial_cmdsn)
{
struct iscsi_session *session;
......@@ -1902,7 +1904,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
int cmd_i, cmds_max;
/*
* The iscsi layer needs some ctasks for nop handling and tmfs.
* The iscsi layer needs some tasks for nop handling and tmfs.
*/
if (scsi_cmds_max < 1)
scsi_cmds_max = ISCSI_MGMT_CMDS_MAX;
......@@ -1939,17 +1941,17 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
/* initialize SCSI PDU commands pool */
if (iscsi_pool_init(&session->cmdpool, session->cmds_max,
(void***)&session->cmds,
cmd_ctask_size + sizeof(struct iscsi_cmd_task)))
cmd_task_size + sizeof(struct iscsi_task)))
goto cmdpool_alloc_fail;
/* pre-format cmds pool with ITT */
for (cmd_i = 0; cmd_i < session->cmds_max; cmd_i++) {
struct iscsi_cmd_task *ctask = session->cmds[cmd_i];
struct iscsi_task *task = session->cmds[cmd_i];
if (cmd_ctask_size)
ctask->dd_data = &ctask[1];
ctask->itt = cmd_i;
INIT_LIST_HEAD(&ctask->running);
if (cmd_task_size)
task->dd_data = &task[1];
task->itt = cmd_i;
INIT_LIST_HEAD(&task->running);
}
if (!try_module_get(iscsit->owner))
......@@ -2035,30 +2037,30 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size,
INIT_LIST_HEAD(&conn->requeue);
INIT_WORK(&conn->xmitwork, iscsi_xmitworker);
/* allocate login_ctask used for the login/text sequences */
/* allocate login_task used for the login/text sequences */
spin_lock_bh(&session->lock);
if (!__kfifo_get(session->cmdpool.queue,
(void*)&conn->login_ctask,
(void*)&conn->login_task,
sizeof(void*))) {
spin_unlock_bh(&session->lock);
goto login_ctask_alloc_fail;
goto login_task_alloc_fail;
}
spin_unlock_bh(&session->lock);
data = kmalloc(ISCSI_DEF_MAX_RECV_SEG_LEN, GFP_KERNEL);
if (!data)
goto login_ctask_data_alloc_fail;
conn->login_ctask->data = conn->data = data;
goto login_task_data_alloc_fail;
conn->login_task->data = conn->data = data;
init_timer(&conn->tmf_timer);
init_waitqueue_head(&conn->ehwait);
return cls_conn;
login_ctask_data_alloc_fail:
__kfifo_put(session->cmdpool.queue, (void*)&conn->login_ctask,
login_task_data_alloc_fail:
__kfifo_put(session->cmdpool.queue, (void*)&conn->login_task,
sizeof(void*));
login_ctask_alloc_fail:
login_task_alloc_fail:
iscsi_destroy_conn(cls_conn);
return NULL;
}
......@@ -2118,7 +2120,7 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
spin_lock_bh(&session->lock);
kfree(conn->data);
kfree(conn->persistent_address);
__kfifo_put(session->cmdpool.queue, (void*)&conn->login_ctask,
__kfifo_put(session->cmdpool.queue, (void*)&conn->login_task,
sizeof(void*));
if (session->leadconn == conn)
session->leadconn = NULL;
......@@ -2199,23 +2201,23 @@ EXPORT_SYMBOL_GPL(iscsi_conn_start);
static void
flush_control_queues(struct iscsi_session *session, struct iscsi_conn *conn)
{
struct iscsi_cmd_task *ctask, *tmp;
struct iscsi_task *task, *tmp;
/* handle pending */
list_for_each_entry_safe(ctask, tmp, &conn->mgmtqueue, running) {
debug_scsi("flushing pending mgmt ctask itt 0x%x\n", ctask->itt);
/* release ref from prep ctask */
__iscsi_put_ctask(ctask);
list_for_each_entry_safe(task, tmp, &conn->mgmtqueue, running) {
debug_scsi("flushing pending mgmt task itt 0x%x\n", task->itt);
/* release ref from prep task */
__iscsi_put_task(task);
}
/* handle running */
list_for_each_entry_safe(ctask, tmp, &conn->mgmt_run_list, running) {
debug_scsi("flushing running mgmt ctask itt 0x%x\n", ctask->itt);
/* release ref from prep ctask */
__iscsi_put_ctask(ctask);
list_for_each_entry_safe(task, tmp, &conn->mgmt_run_list, running) {
debug_scsi("flushing running mgmt task itt 0x%x\n", task->itt);
/* release ref from prep task */
__iscsi_put_task(task);
}
conn->ctask = NULL;
conn->task = NULL;
}
static void iscsi_start_session_recovery(struct iscsi_session *session,
......@@ -2246,7 +2248,7 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
/*
* When this is called for the in_login state, we only want to clean
* up the login ctask and connection. We do not need to block and set
* up the login task and connection. We do not need to block and set
* the recovery state again
*/
if (flag == STOP_CONN_TERM)
......
include/scsi/libiscsi.h
浏览文件 @ 9c19a7d0
......@@ -92,7 +92,7 @@ enum {
ISCSI_TASK_RUNNING,
};
struct iscsi_cmd_task {
struct iscsi_task {
/*
* Because LLDs allocate their hdr differently, this is a pointer
* and length to that storage. It must be setup at session
......@@ -120,9 +120,9 @@ struct iscsi_cmd_task {
void *dd_data; /* driver/transport data */
};
static inline void* iscsi_next_hdr(struct iscsi_cmd_task *ctask)
static inline void* iscsi_next_hdr(struct iscsi_task *task)
{
return (void*)ctask->hdr + ctask->hdr_len;
return (void*)task->hdr + task->hdr_len;
}
/* Connection's states */
......@@ -151,7 +151,7 @@ struct iscsi_conn {
unsigned long last_ping;
int ping_timeout;
int recv_timeout;
struct iscsi_cmd_task *ping_ctask;
struct iscsi_task *ping_task;
/* iSCSI connection-wide sequencing */
uint32_t exp_statsn;
......@@ -167,8 +167,8 @@ struct iscsi_conn {
* should always fit in this buffer
*/
char *data;
struct iscsi_cmd_task *login_ctask; /* mtask used for login/text */
struct iscsi_cmd_task *ctask; /* xmit task in progress */
struct iscsi_task *login_task; /* mtask used for login/text */
struct iscsi_task *task; /* xmit task in progress */
/* xmit */
struct list_head mgmtqueue; /* mgmt (control) xmit queue */
......@@ -285,7 +285,7 @@ struct iscsi_session {
int scsi_cmds_max; /* max scsi commands */
int cmds_max; /* size of cmds array */
struct iscsi_cmd_task **cmds; /* Original Cmds arr */
struct iscsi_task **cmds; /* Original Cmds arr */
struct iscsi_pool cmdpool; /* PDU's pool */
};
......@@ -365,16 +365,16 @@ extern void iscsi_suspend_tx(struct iscsi_conn *conn);
* pdu and task processing
*/
extern void iscsi_update_cmdsn(struct iscsi_session *, struct iscsi_nopin *);
extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *,
extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_task *,
struct iscsi_data *hdr);
extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *,
char *, uint32_t);
extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
char *, int);
extern int iscsi_verify_itt(struct iscsi_conn *, itt_t);
extern struct iscsi_cmd_task *iscsi_itt_to_ctask(struct iscsi_conn *, itt_t);
extern void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask);
extern void iscsi_put_ctask(struct iscsi_cmd_task *ctask);
extern struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *, itt_t);
extern void iscsi_requeue_task(struct iscsi_task *task);
extern void iscsi_put_task(struct iscsi_task *task);
/*
* generic helpers
......
include/scsi/scsi_transport_iscsi.h
浏览文件 @ 9c19a7d0
......@@ -33,7 +33,7 @@ struct iscsi_transport;
struct Scsi_Host;
struct iscsi_cls_conn;
struct iscsi_conn;
struct iscsi_cmd_task;
struct iscsi_task;
struct sockaddr;
/**
......@@ -112,10 +112,10 @@ struct iscsi_transport {
char *data, uint32_t data_size);
void (*get_stats) (struct iscsi_cls_conn *conn,
struct iscsi_stats *stats);
int (*init_task) (struct iscsi_cmd_task *task);
int (*xmit_task) (struct iscsi_cmd_task *task);
int (*init_task) (struct iscsi_task *task);
int (*xmit_task) (struct iscsi_task *task);
void (*cleanup_task) (struct iscsi_conn *conn,
struct iscsi_cmd_task *task);
struct iscsi_task *task);
void (*session_recovery_timedout) (struct iscsi_cls_session *session);
int (*ep_connect) (struct sockaddr *dst_addr, int non_blocking,
uint64_t *ep_handle);
......
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