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-rw-r--r--drivers/scsi/libiscsi.c514
-rw-r--r--include/scsi/libiscsi.h22
-rw-r--r--include/scsi/scsi_transport_iscsi.h8
3 files changed, 273 insertions, 271 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index ef92b1b0f16e..92ee6d94aaf9 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -88,61 +88,61 @@ iscsi_update_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr)
88} 88}
89EXPORT_SYMBOL_GPL(iscsi_update_cmdsn); 89EXPORT_SYMBOL_GPL(iscsi_update_cmdsn);
90 90
91void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *ctask, 91void iscsi_prep_unsolicit_data_pdu(struct iscsi_task *task,
92 struct iscsi_data *hdr) 92 struct iscsi_data *hdr)
93{ 93{
94 struct iscsi_conn *conn = ctask->conn; 94 struct iscsi_conn *conn = task->conn;
95 95
96 memset(hdr, 0, sizeof(struct iscsi_data)); 96 memset(hdr, 0, sizeof(struct iscsi_data));
97 hdr->ttt = cpu_to_be32(ISCSI_RESERVED_TAG); 97 hdr->ttt = cpu_to_be32(ISCSI_RESERVED_TAG);
98 hdr->datasn = cpu_to_be32(ctask->unsol_datasn); 98 hdr->datasn = cpu_to_be32(task->unsol_datasn);
99 ctask->unsol_datasn++; 99 task->unsol_datasn++;
100 hdr->opcode = ISCSI_OP_SCSI_DATA_OUT; 100 hdr->opcode = ISCSI_OP_SCSI_DATA_OUT;
101 memcpy(hdr->lun, ctask->hdr->lun, sizeof(hdr->lun)); 101 memcpy(hdr->lun, task->hdr->lun, sizeof(hdr->lun));
102 102
103 hdr->itt = ctask->hdr->itt; 103 hdr->itt = task->hdr->itt;
104 hdr->exp_statsn = cpu_to_be32(conn->exp_statsn); 104 hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
105 hdr->offset = cpu_to_be32(ctask->unsol_offset); 105 hdr->offset = cpu_to_be32(task->unsol_offset);
106 106
107 if (ctask->unsol_count > conn->max_xmit_dlength) { 107 if (task->unsol_count > conn->max_xmit_dlength) {
108 hton24(hdr->dlength, conn->max_xmit_dlength); 108 hton24(hdr->dlength, conn->max_xmit_dlength);
109 ctask->data_count = conn->max_xmit_dlength; 109 task->data_count = conn->max_xmit_dlength;
110 ctask->unsol_offset += ctask->data_count; 110 task->unsol_offset += task->data_count;
111 hdr->flags = 0; 111 hdr->flags = 0;
112 } else { 112 } else {
113 hton24(hdr->dlength, ctask->unsol_count); 113 hton24(hdr->dlength, task->unsol_count);
114 ctask->data_count = ctask->unsol_count; 114 task->data_count = task->unsol_count;
115 hdr->flags = ISCSI_FLAG_CMD_FINAL; 115 hdr->flags = ISCSI_FLAG_CMD_FINAL;
116 } 116 }
117} 117}
118EXPORT_SYMBOL_GPL(iscsi_prep_unsolicit_data_pdu); 118EXPORT_SYMBOL_GPL(iscsi_prep_unsolicit_data_pdu);
119 119
120static int iscsi_add_hdr(struct iscsi_cmd_task *ctask, unsigned len) 120static int iscsi_add_hdr(struct iscsi_task *task, unsigned len)
121{ 121{
122 unsigned exp_len = ctask->hdr_len + len; 122 unsigned exp_len = task->hdr_len + len;
123 123
124 if (exp_len > ctask->hdr_max) { 124 if (exp_len > task->hdr_max) {
125 WARN_ON(1); 125 WARN_ON(1);
126 return -EINVAL; 126 return -EINVAL;
127 } 127 }
128 128
129 WARN_ON(len & (ISCSI_PAD_LEN - 1)); /* caller must pad the AHS */ 129 WARN_ON(len & (ISCSI_PAD_LEN - 1)); /* caller must pad the AHS */
130 ctask->hdr_len = exp_len; 130 task->hdr_len = exp_len;
131 return 0; 131 return 0;
132} 132}
133 133
134/* 134/*
135 * make an extended cdb AHS 135 * make an extended cdb AHS
136 */ 136 */
137static int iscsi_prep_ecdb_ahs(struct iscsi_cmd_task *ctask) 137static int iscsi_prep_ecdb_ahs(struct iscsi_task *task)
138{ 138{
139 struct scsi_cmnd *cmd = ctask->sc; 139 struct scsi_cmnd *cmd = task->sc;
140 unsigned rlen, pad_len; 140 unsigned rlen, pad_len;
141 unsigned short ahslength; 141 unsigned short ahslength;
142 struct iscsi_ecdb_ahdr *ecdb_ahdr; 142 struct iscsi_ecdb_ahdr *ecdb_ahdr;
143 int rc; 143 int rc;
144 144
145 ecdb_ahdr = iscsi_next_hdr(ctask); 145 ecdb_ahdr = iscsi_next_hdr(task);
146 rlen = cmd->cmd_len - ISCSI_CDB_SIZE; 146 rlen = cmd->cmd_len - ISCSI_CDB_SIZE;
147 147
148 BUG_ON(rlen > sizeof(ecdb_ahdr->ecdb)); 148 BUG_ON(rlen > sizeof(ecdb_ahdr->ecdb));
@@ -150,7 +150,7 @@ static int iscsi_prep_ecdb_ahs(struct iscsi_cmd_task *ctask)
150 150
151 pad_len = iscsi_padding(rlen); 151 pad_len = iscsi_padding(rlen);
152 152
153 rc = iscsi_add_hdr(ctask, sizeof(ecdb_ahdr->ahslength) + 153 rc = iscsi_add_hdr(task, sizeof(ecdb_ahdr->ahslength) +
154 sizeof(ecdb_ahdr->ahstype) + ahslength + pad_len); 154 sizeof(ecdb_ahdr->ahstype) + ahslength + pad_len);
155 if (rc) 155 if (rc)
156 return rc; 156 return rc;
@@ -165,19 +165,19 @@ static int iscsi_prep_ecdb_ahs(struct iscsi_cmd_task *ctask)
165 165
166 debug_scsi("iscsi_prep_ecdb_ahs: varlen_cdb_len %d " 166 debug_scsi("iscsi_prep_ecdb_ahs: varlen_cdb_len %d "
167 "rlen %d pad_len %d ahs_length %d iscsi_headers_size %u\n", 167 "rlen %d pad_len %d ahs_length %d iscsi_headers_size %u\n",
168 cmd->cmd_len, rlen, pad_len, ahslength, ctask->hdr_len); 168 cmd->cmd_len, rlen, pad_len, ahslength, task->hdr_len);
169 169
170 return 0; 170 return 0;
171} 171}
172 172
173static int iscsi_prep_bidi_ahs(struct iscsi_cmd_task *ctask) 173static int iscsi_prep_bidi_ahs(struct iscsi_task *task)
174{ 174{
175 struct scsi_cmnd *sc = ctask->sc; 175 struct scsi_cmnd *sc = task->sc;
176 struct iscsi_rlength_ahdr *rlen_ahdr; 176 struct iscsi_rlength_ahdr *rlen_ahdr;
177 int rc; 177 int rc;
178 178
179 rlen_ahdr = iscsi_next_hdr(ctask); 179 rlen_ahdr = iscsi_next_hdr(task);
180 rc = iscsi_add_hdr(ctask, sizeof(*rlen_ahdr)); 180 rc = iscsi_add_hdr(task, sizeof(*rlen_ahdr));
181 if (rc) 181 if (rc)
182 return rc; 182 return rc;
183 183
@@ -197,28 +197,28 @@ static int iscsi_prep_bidi_ahs(struct iscsi_cmd_task *ctask)
197 197
198/** 198/**
199 * iscsi_prep_scsi_cmd_pdu - prep iscsi scsi cmd pdu 199 * iscsi_prep_scsi_cmd_pdu - prep iscsi scsi cmd pdu
200 * @ctask: iscsi task 200 * @task: iscsi task
201 * 201 *
202 * Prep basic iSCSI PDU fields for a scsi cmd pdu. The LLD should set 202 * Prep basic iSCSI PDU fields for a scsi cmd pdu. The LLD should set
203 * fields like dlength or final based on how much data it sends 203 * fields like dlength or final based on how much data it sends
204 */ 204 */
205static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask) 205static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
206{ 206{
207 struct iscsi_conn *conn = ctask->conn; 207 struct iscsi_conn *conn = task->conn;
208 struct iscsi_session *session = conn->session; 208 struct iscsi_session *session = conn->session;
209 struct iscsi_cmd *hdr = ctask->hdr; 209 struct iscsi_cmd *hdr = task->hdr;
210 struct scsi_cmnd *sc = ctask->sc; 210 struct scsi_cmnd *sc = task->sc;
211 unsigned hdrlength, cmd_len; 211 unsigned hdrlength, cmd_len;
212 int rc; 212 int rc;
213 213
214 ctask->hdr_len = 0; 214 task->hdr_len = 0;
215 rc = iscsi_add_hdr(ctask, sizeof(*hdr)); 215 rc = iscsi_add_hdr(task, sizeof(*hdr));
216 if (rc) 216 if (rc)
217 return rc; 217 return rc;
218 hdr->opcode = ISCSI_OP_SCSI_CMD; 218 hdr->opcode = ISCSI_OP_SCSI_CMD;
219 hdr->flags = ISCSI_ATTR_SIMPLE; 219 hdr->flags = ISCSI_ATTR_SIMPLE;
220 int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun); 220 int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
221 hdr->itt = build_itt(ctask->itt, session->age); 221 hdr->itt = build_itt(task->itt, session->age);
222 hdr->cmdsn = cpu_to_be32(session->cmdsn); 222 hdr->cmdsn = cpu_to_be32(session->cmdsn);
223 session->cmdsn++; 223 session->cmdsn++;
224 hdr->exp_statsn = cpu_to_be32(conn->exp_statsn); 224 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)
226 if (cmd_len < ISCSI_CDB_SIZE) 226 if (cmd_len < ISCSI_CDB_SIZE)
227 memset(&hdr->cdb[cmd_len], 0, ISCSI_CDB_SIZE - cmd_len); 227 memset(&hdr->cdb[cmd_len], 0, ISCSI_CDB_SIZE - cmd_len);
228 else if (cmd_len > ISCSI_CDB_SIZE) { 228 else if (cmd_len > ISCSI_CDB_SIZE) {
229 rc = iscsi_prep_ecdb_ahs(ctask); 229 rc = iscsi_prep_ecdb_ahs(task);
230 if (rc) 230 if (rc)
231 return rc; 231 return rc;
232 cmd_len = ISCSI_CDB_SIZE; 232 cmd_len = ISCSI_CDB_SIZE;
233 } 233 }
234 memcpy(hdr->cdb, sc->cmnd, cmd_len); 234 memcpy(hdr->cdb, sc->cmnd, cmd_len);
235 235
236 ctask->imm_count = 0; 236 task->imm_count = 0;
237 if (scsi_bidi_cmnd(sc)) { 237 if (scsi_bidi_cmnd(sc)) {
238 hdr->flags |= ISCSI_FLAG_CMD_READ; 238 hdr->flags |= ISCSI_FLAG_CMD_READ;
239 rc = iscsi_prep_bidi_ahs(ctask); 239 rc = iscsi_prep_bidi_ahs(task);
240 if (rc) 240 if (rc)
241 return rc; 241 return rc;
242 } 242 }
@@ -258,28 +258,28 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
258 * 258 *
259 * pad_count bytes to be sent as zero-padding 259 * pad_count bytes to be sent as zero-padding
260 */ 260 */
261 ctask->unsol_count = 0; 261 task->unsol_count = 0;
262 ctask->unsol_offset = 0; 262 task->unsol_offset = 0;
263 ctask->unsol_datasn = 0; 263 task->unsol_datasn = 0;
264 264
265 if (session->imm_data_en) { 265 if (session->imm_data_en) {
266 if (out_len >= session->first_burst) 266 if (out_len >= session->first_burst)
267 ctask->imm_count = min(session->first_burst, 267 task->imm_count = min(session->first_burst,
268 conn->max_xmit_dlength); 268 conn->max_xmit_dlength);
269 else 269 else
270 ctask->imm_count = min(out_len, 270 task->imm_count = min(out_len,
271 conn->max_xmit_dlength); 271 conn->max_xmit_dlength);
272 hton24(hdr->dlength, ctask->imm_count); 272 hton24(hdr->dlength, task->imm_count);
273 } else 273 } else
274 zero_data(hdr->dlength); 274 zero_data(hdr->dlength);
275 275
276 if (!session->initial_r2t_en) { 276 if (!session->initial_r2t_en) {
277 ctask->unsol_count = min(session->first_burst, out_len) 277 task->unsol_count = min(session->first_burst, out_len)
278 - ctask->imm_count; 278 - task->imm_count;
279 ctask->unsol_offset = ctask->imm_count; 279 task->unsol_offset = task->imm_count;
280 } 280 }
281 281
282 if (!ctask->unsol_count) 282 if (!task->unsol_count)
283 /* No unsolicit Data-Out's */ 283 /* No unsolicit Data-Out's */
284 hdr->flags |= ISCSI_FLAG_CMD_FINAL; 284 hdr->flags |= ISCSI_FLAG_CMD_FINAL;
285 } else { 285 } else {
@@ -292,7 +292,7 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
292 } 292 }
293 293
294 /* calculate size of additional header segments (AHSs) */ 294 /* calculate size of additional header segments (AHSs) */
295 hdrlength = ctask->hdr_len - sizeof(*hdr); 295 hdrlength = task->hdr_len - sizeof(*hdr);
296 296
297 WARN_ON(hdrlength & (ISCSI_PAD_LEN-1)); 297 WARN_ON(hdrlength & (ISCSI_PAD_LEN-1));
298 hdrlength /= ISCSI_PAD_LEN; 298 hdrlength /= ISCSI_PAD_LEN;
@@ -301,17 +301,17 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
301 hdr->hlength = hdrlength & 0xFF; 301 hdr->hlength = hdrlength & 0xFF;
302 302
303 if (conn->session->tt->init_task && 303 if (conn->session->tt->init_task &&
304 conn->session->tt->init_task(ctask)) 304 conn->session->tt->init_task(task))
305 return -EIO; 305 return -EIO;
306 306
307 ctask->state = ISCSI_TASK_RUNNING; 307 task->state = ISCSI_TASK_RUNNING;
308 list_move_tail(&ctask->running, &conn->run_list); 308 list_move_tail(&task->running, &conn->run_list);
309 309
310 conn->scsicmd_pdus_cnt++; 310 conn->scsicmd_pdus_cnt++;
311 debug_scsi("iscsi prep [%s cid %d sc %p cdb 0x%x itt 0x%x len %d " 311 debug_scsi("iscsi prep [%s cid %d sc %p cdb 0x%x itt 0x%x len %d "
312 "bidi_len %d cmdsn %d win %d]\n", scsi_bidi_cmnd(sc) ? 312 "bidi_len %d cmdsn %d win %d]\n", scsi_bidi_cmnd(sc) ?
313 "bidirectional" : sc->sc_data_direction == DMA_TO_DEVICE ? 313 "bidirectional" : sc->sc_data_direction == DMA_TO_DEVICE ?
314 "write" : "read", conn->id, sc, sc->cmnd[0], ctask->itt, 314 "write" : "read", conn->id, sc, sc->cmnd[0], task->itt,
315 scsi_bufflen(sc), 315 scsi_bufflen(sc),
316 scsi_bidi_cmnd(sc) ? scsi_in(sc)->length : 0, 316 scsi_bidi_cmnd(sc) ? scsi_in(sc)->length : 0,
317 session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1); 317 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)
320 320
321/** 321/**
322 * iscsi_complete_command - finish a task 322 * iscsi_complete_command - finish a task
323 * @ctask: iscsi cmd task 323 * @task: iscsi cmd task
324 * 324 *
325 * Must be called with session lock. 325 * Must be called with session lock.
326 * This function returns the scsi command to scsi-ml or cleans 326 * This function returns the scsi command to scsi-ml or cleans
327 * up mgmt tasks then returns the task to the pool. 327 * up mgmt tasks then returns the task to the pool.
328 */ 328 */
329static void iscsi_complete_command(struct iscsi_cmd_task *ctask) 329static void iscsi_complete_command(struct iscsi_task *task)
330{ 330{
331 struct iscsi_conn *conn = ctask->conn; 331 struct iscsi_conn *conn = task->conn;
332 struct iscsi_session *session = conn->session; 332 struct iscsi_session *session = conn->session;
333 struct scsi_cmnd *sc = ctask->sc; 333 struct scsi_cmnd *sc = task->sc;
334 334
335 list_del_init(&ctask->running); 335 list_del_init(&task->running);
336 ctask->state = ISCSI_TASK_COMPLETED; 336 task->state = ISCSI_TASK_COMPLETED;
337 ctask->sc = NULL; 337 task->sc = NULL;
338 338
339 if (conn->ctask == ctask) 339 if (conn->task == task)
340 conn->ctask = NULL; 340 conn->task = NULL;
341 /* 341 /*
342 * login ctask is preallocated so do not free 342 * login task is preallocated so do not free
343 */ 343 */
344 if (conn->login_ctask == ctask) 344 if (conn->login_task == task)
345 return; 345 return;
346 346
347 __kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*)); 347 __kfifo_put(session->cmdpool.queue, (void*)&task, sizeof(void*));
348 348
349 if (conn->ping_ctask == ctask) 349 if (conn->ping_task == task)
350 conn->ping_ctask = NULL; 350 conn->ping_task = NULL;
351 351
352 if (sc) { 352 if (sc) {
353 ctask->sc = NULL; 353 task->sc = NULL;
354 /* SCSI eh reuses commands to verify us */ 354 /* SCSI eh reuses commands to verify us */
355 sc->SCp.ptr = NULL; 355 sc->SCp.ptr = NULL;
356 /* 356 /*
@@ -362,47 +362,47 @@ static void iscsi_complete_command(struct iscsi_cmd_task *ctask)
362 } 362 }
363} 363}
364 364
365static void __iscsi_get_ctask(struct iscsi_cmd_task *ctask) 365static void __iscsi_get_task(struct iscsi_task *task)
366{ 366{
367 atomic_inc(&ctask->refcount); 367 atomic_inc(&task->refcount);
368} 368}
369 369
370static void __iscsi_put_ctask(struct iscsi_cmd_task *ctask) 370static void __iscsi_put_task(struct iscsi_task *task)
371{ 371{
372 if (atomic_dec_and_test(&ctask->refcount)) 372 if (atomic_dec_and_test(&task->refcount))
373 iscsi_complete_command(ctask); 373 iscsi_complete_command(task);
374} 374}
375 375
376void iscsi_put_ctask(struct iscsi_cmd_task *ctask) 376void iscsi_put_task(struct iscsi_task *task)
377{ 377{
378 struct iscsi_session *session = ctask->conn->session; 378 struct iscsi_session *session = task->conn->session;
379 379
380 spin_lock_bh(&session->lock); 380 spin_lock_bh(&session->lock);
381 __iscsi_put_ctask(ctask); 381 __iscsi_put_task(task);
382 spin_unlock_bh(&session->lock); 382 spin_unlock_bh(&session->lock);
383} 383}
384EXPORT_SYMBOL_GPL(iscsi_put_ctask); 384EXPORT_SYMBOL_GPL(iscsi_put_task);
385 385
386/* 386/*
387 * session lock must be held 387 * session lock must be held
388 */ 388 */
389static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask, 389static void fail_command(struct iscsi_conn *conn, struct iscsi_task *task,
390 int err) 390 int err)
391{ 391{
392 struct scsi_cmnd *sc; 392 struct scsi_cmnd *sc;
393 393
394 sc = ctask->sc; 394 sc = task->sc;
395 if (!sc) 395 if (!sc)
396 return; 396 return;
397 397
398 if (ctask->state == ISCSI_TASK_PENDING) 398 if (task->state == ISCSI_TASK_PENDING)
399 /* 399 /*
400 * cmd never made it to the xmit thread, so we should not count 400 * cmd never made it to the xmit thread, so we should not count
401 * the cmd in the sequencing 401 * the cmd in the sequencing
402 */ 402 */
403 conn->session->queued_cmdsn--; 403 conn->session->queued_cmdsn--;
404 else 404 else
405 conn->session->tt->cleanup_task(conn, ctask); 405 conn->session->tt->cleanup_task(conn, task);
406 406
407 sc->result = err; 407 sc->result = err;
408 408
@@ -413,17 +413,17 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
413 scsi_in(sc)->resid = scsi_in(sc)->length; 413 scsi_in(sc)->resid = scsi_in(sc)->length;
414 } 414 }
415 415
416 if (conn->ctask == ctask) 416 if (conn->task == task)
417 conn->ctask = NULL; 417 conn->task = NULL;
418 /* release ref from queuecommand */ 418 /* release ref from queuecommand */
419 __iscsi_put_ctask(ctask); 419 __iscsi_put_task(task);
420} 420}
421 421
422static int iscsi_prep_mgmt_task(struct iscsi_conn *conn, 422static int iscsi_prep_mgmt_task(struct iscsi_conn *conn,
423 struct iscsi_cmd_task *ctask) 423 struct iscsi_task *task)
424{ 424{
425 struct iscsi_session *session = conn->session; 425 struct iscsi_session *session = conn->session;
426 struct iscsi_hdr *hdr = (struct iscsi_hdr *)ctask->hdr; 426 struct iscsi_hdr *hdr = (struct iscsi_hdr *)task->hdr;
427 struct iscsi_nopout *nop = (struct iscsi_nopout *)hdr; 427 struct iscsi_nopout *nop = (struct iscsi_nopout *)hdr;
428 428
429 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) 429 if (conn->session->state == ISCSI_STATE_LOGGING_OUT)
@@ -437,7 +437,7 @@ static int iscsi_prep_mgmt_task(struct iscsi_conn *conn,
437 */ 437 */
438 nop->cmdsn = cpu_to_be32(session->cmdsn); 438 nop->cmdsn = cpu_to_be32(session->cmdsn);
439 if (hdr->itt != RESERVED_ITT) { 439 if (hdr->itt != RESERVED_ITT) {
440 hdr->itt = build_itt(ctask->itt, session->age); 440 hdr->itt = build_itt(task->itt, session->age);
441 /* 441 /*
442 * TODO: We always use immediate, so we never hit this. 442 * TODO: We always use immediate, so we never hit this.
443 * If we start to send tmfs or nops as non-immediate then 443 * 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,
451 } 451 }
452 452
453 if (session->tt->init_task) 453 if (session->tt->init_task)
454 session->tt->init_task(ctask); 454 session->tt->init_task(task);
455 455
456 if ((hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) 456 if ((hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT)
457 session->state = ISCSI_STATE_LOGGING_OUT; 457 session->state = ISCSI_STATE_LOGGING_OUT;
458 458
459 list_move_tail(&ctask->running, &conn->mgmt_run_list); 459 list_move_tail(&task->running, &conn->mgmt_run_list);
460 debug_scsi("mgmtpdu [op 0x%x hdr->itt 0x%x datalen %d]\n", 460 debug_scsi("mgmtpdu [op 0x%x hdr->itt 0x%x datalen %d]\n",
461 hdr->opcode & ISCSI_OPCODE_MASK, hdr->itt, 461 hdr->opcode & ISCSI_OPCODE_MASK, hdr->itt,
462 ctask->data_count); 462 task->data_count);
463 return 0; 463 return 0;
464} 464}
465 465
466static struct iscsi_cmd_task * 466static struct iscsi_task *
467__iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, 467__iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
468 char *data, uint32_t data_size) 468 char *data, uint32_t data_size)
469{ 469{
470 struct iscsi_session *session = conn->session; 470 struct iscsi_session *session = conn->session;
471 struct iscsi_cmd_task *ctask; 471 struct iscsi_task *task;
472 472
473 if (session->state == ISCSI_STATE_TERMINATE) 473 if (session->state == ISCSI_STATE_TERMINATE)
474 return NULL; 474 return NULL;
@@ -481,18 +481,18 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
481 * Same task can be used. Same ITT must be used. 481 * Same task can be used. Same ITT must be used.
482 * Note that login_task is preallocated at conn_create(). 482 * Note that login_task is preallocated at conn_create().
483 */ 483 */
484 ctask = conn->login_ctask; 484 task = conn->login_task;
485 else { 485 else {
486 BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE); 486 BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE);
487 BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED); 487 BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED);
488 488
489 if (!__kfifo_get(session->cmdpool.queue, 489 if (!__kfifo_get(session->cmdpool.queue,
490 (void*)&ctask, sizeof(void*))) 490 (void*)&task, sizeof(void*)))
491 return NULL; 491 return NULL;
492 492
493 if ((hdr->opcode == (ISCSI_OP_NOOP_OUT | ISCSI_OP_IMMEDIATE)) && 493 if ((hdr->opcode == (ISCSI_OP_NOOP_OUT | ISCSI_OP_IMMEDIATE)) &&
494 hdr->ttt == RESERVED_ITT) { 494 hdr->ttt == RESERVED_ITT) {
495 conn->ping_ctask = ctask; 495 conn->ping_task = task;
496 conn->last_ping = jiffies; 496 conn->last_ping = jiffies;
497 } 497 }
498 } 498 }
@@ -501,33 +501,33 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
501 * released by the lld when it has transmitted the task for 501 * released by the lld when it has transmitted the task for
502 * pdus we do not expect a response for. 502 * pdus we do not expect a response for.
503 */ 503 */
504 atomic_set(&ctask->refcount, 1); 504 atomic_set(&task->refcount, 1);
505 ctask->conn = conn; 505 task->conn = conn;
506 ctask->sc = NULL; 506 task->sc = NULL;
507 507
508 if (data_size) { 508 if (data_size) {
509 memcpy(ctask->data, data, data_size); 509 memcpy(task->data, data, data_size);
510 ctask->data_count = data_size; 510 task->data_count = data_size;
511 } else 511 } else
512 ctask->data_count = 0; 512 task->data_count = 0;
513 513
514 memcpy(ctask->hdr, hdr, sizeof(struct iscsi_hdr)); 514 memcpy(task->hdr, hdr, sizeof(struct iscsi_hdr));
515 INIT_LIST_HEAD(&ctask->running); 515 INIT_LIST_HEAD(&task->running);
516 list_add_tail(&ctask->running, &conn->mgmtqueue); 516 list_add_tail(&task->running, &conn->mgmtqueue);
517 517
518 if (session->tt->caps & CAP_DATA_PATH_OFFLOAD) { 518 if (session->tt->caps & CAP_DATA_PATH_OFFLOAD) {
519 if (iscsi_prep_mgmt_task(conn, ctask)) { 519 if (iscsi_prep_mgmt_task(conn, task)) {
520 __iscsi_put_ctask(ctask); 520 __iscsi_put_task(task);
521 return NULL; 521 return NULL;
522 } 522 }
523 523
524 if (session->tt->xmit_task(ctask)) 524 if (session->tt->xmit_task(task))
525 ctask = NULL; 525 task = NULL;
526 526
527 } else 527 } else
528 scsi_queue_work(conn->session->host, &conn->xmitwork); 528 scsi_queue_work(conn->session->host, &conn->xmitwork);
529 529
530 return ctask; 530 return task;
531} 531}
532 532
533int iscsi_conn_send_pdu(struct iscsi_cls_conn *cls_conn, struct iscsi_hdr *hdr, 533int 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);
549 * iscsi_cmd_rsp - SCSI Command Response processing 549 * iscsi_cmd_rsp - SCSI Command Response processing
550 * @conn: iscsi connection 550 * @conn: iscsi connection
551 * @hdr: iscsi header 551 * @hdr: iscsi header
552 * @ctask: scsi command task 552 * @task: scsi command task
553 * @data: cmd data buffer 553 * @data: cmd data buffer
554 * @datalen: len of buffer 554 * @datalen: len of buffer
555 * 555 *
556 * iscsi_cmd_rsp sets up the scsi_cmnd fields based on the PDU and 556 * iscsi_cmd_rsp sets up the scsi_cmnd fields based on the PDU and
557 * then completes the command and ctask. 557 * then completes the command and task.
558 **/ 558 **/
559static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr, 559static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
560 struct iscsi_cmd_task *ctask, char *data, 560 struct iscsi_task *task, char *data,
561 int datalen) 561 int datalen)
562{ 562{
563 struct iscsi_cmd_rsp *rhdr = (struct iscsi_cmd_rsp *)hdr; 563 struct iscsi_cmd_rsp *rhdr = (struct iscsi_cmd_rsp *)hdr;
564 struct iscsi_session *session = conn->session; 564 struct iscsi_session *session = conn->session;
565 struct scsi_cmnd *sc = ctask->sc; 565 struct scsi_cmnd *sc = task->sc;
566 566
567 iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr); 567 iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr);
568 conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1; 568 conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1;
@@ -622,10 +622,10 @@ invalid_datalen:
622 } 622 }
623out: 623out:
624 debug_scsi("done [sc %lx res %d itt 0x%x]\n", 624 debug_scsi("done [sc %lx res %d itt 0x%x]\n",
625 (long)sc, sc->result, ctask->itt); 625 (long)sc, sc->result, task->itt);
626 conn->scsirsp_pdus_cnt++; 626 conn->scsirsp_pdus_cnt++;
627 627
628 __iscsi_put_ctask(ctask); 628 __iscsi_put_task(task);
629} 629}
630 630
631static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) 631static 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)
650static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr) 650static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
651{ 651{
652 struct iscsi_nopout hdr; 652 struct iscsi_nopout hdr;
653 struct iscsi_cmd_task *ctask; 653 struct iscsi_task *task;
654 654
655 if (!rhdr && conn->ping_ctask) 655 if (!rhdr && conn->ping_task)
656 return; 656 return;
657 657
658 memset(&hdr, 0, sizeof(struct iscsi_nopout)); 658 memset(&hdr, 0, sizeof(struct iscsi_nopout));
@@ -666,8 +666,8 @@ static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
666 } else 666 } else
667 hdr.ttt = RESERVED_ITT; 667 hdr.ttt = RESERVED_ITT;
668 668
669 ctask = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0); 669 task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0);
670 if (!ctask) 670 if (!task)
671 iscsi_conn_printk(KERN_ERR, conn, "Could not send nopout\n"); 671 iscsi_conn_printk(KERN_ERR, conn, "Could not send nopout\n");
672} 672}
673 673
@@ -712,7 +712,7 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
712{ 712{
713 struct iscsi_session *session = conn->session; 713 struct iscsi_session *session = conn->session;
714 int opcode = hdr->opcode & ISCSI_OPCODE_MASK, rc = 0; 714 int opcode = hdr->opcode & ISCSI_OPCODE_MASK, rc = 0;
715 struct iscsi_cmd_task *ctask; 715 struct iscsi_task *task;
716 uint32_t itt; 716 uint32_t itt;
717 717
718 conn->last_recv = jiffies; 718 conn->last_recv = jiffies;
@@ -758,27 +758,27 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
758 goto out; 758 goto out;
759 } 759 }
760 760
761 ctask = session->cmds[itt]; 761 task = session->cmds[itt];
762 switch(opcode) { 762 switch(opcode) {
763 case ISCSI_OP_SCSI_CMD_RSP: 763 case ISCSI_OP_SCSI_CMD_RSP:
764 if (!ctask->sc) { 764 if (!task->sc) {
765 rc = ISCSI_ERR_NO_SCSI_CMD; 765 rc = ISCSI_ERR_NO_SCSI_CMD;
766 break; 766 break;
767 } 767 }
768 BUG_ON((void*)ctask != ctask->sc->SCp.ptr); 768 BUG_ON((void*)task != task->sc->SCp.ptr);
769 iscsi_scsi_cmd_rsp(conn, hdr, ctask, data, datalen); 769 iscsi_scsi_cmd_rsp(conn, hdr, task, data, datalen);
770 break; 770 break;
771 case ISCSI_OP_SCSI_DATA_IN: 771 case ISCSI_OP_SCSI_DATA_IN:
772 if (!ctask->sc) { 772 if (!task->sc) {
773 rc = ISCSI_ERR_NO_SCSI_CMD; 773 rc = ISCSI_ERR_NO_SCSI_CMD;
774 break; 774 break;
775 } 775 }
776 BUG_ON((void*)ctask != ctask->sc->SCp.ptr); 776 BUG_ON((void*)task != task->sc->SCp.ptr);
777 if (hdr->flags & ISCSI_FLAG_DATA_STATUS) { 777 if (hdr->flags & ISCSI_FLAG_DATA_STATUS) {
778 conn->scsirsp_pdus_cnt++; 778 conn->scsirsp_pdus_cnt++;
779 iscsi_update_cmdsn(session, 779 iscsi_update_cmdsn(session,
780 (struct iscsi_nopin*) hdr); 780 (struct iscsi_nopin*) hdr);
781 __iscsi_put_ctask(ctask); 781 __iscsi_put_task(task);
782 } 782 }
783 break; 783 break;
784 case ISCSI_OP_R2T: 784 case ISCSI_OP_R2T:
@@ -808,7 +808,7 @@ static int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
808 } 808 }
809 809
810 iscsi_tmf_rsp(conn, hdr); 810 iscsi_tmf_rsp(conn, hdr);
811 __iscsi_put_ctask(ctask); 811 __iscsi_put_task(task);
812 break; 812 break;
813 case ISCSI_OP_NOOP_IN: 813 case ISCSI_OP_NOOP_IN:
814 iscsi_update_cmdsn(session, (struct iscsi_nopin*)hdr); 814 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,
818 } 818 }
819 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; 819 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
820 820
821 if (conn->ping_ctask != ctask) 821 if (conn->ping_task != task)
822 /* 822 /*
823 * If this is not in response to one of our 823 * If this is not in response to one of our
824 * nops then it must be from userspace. 824 * nops then it must be from userspace.
825 */ 825 */
826 goto recv_pdu; 826 goto recv_pdu;
827 __iscsi_put_ctask(ctask); 827
828 mod_timer(&conn->transport_timer, jiffies + conn->recv_timeout);
829 __iscsi_put_task(task);
828 break; 830 break;
829 default: 831 default:
830 rc = ISCSI_ERR_BAD_OPCODE; 832 rc = ISCSI_ERR_BAD_OPCODE;
@@ -836,7 +838,7 @@ out:
836recv_pdu: 838recv_pdu:
837 if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) 839 if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
838 rc = ISCSI_ERR_CONN_FAILED; 840 rc = ISCSI_ERR_CONN_FAILED;
839 __iscsi_put_ctask(ctask); 841 __iscsi_put_task(task);
840 return rc; 842 return rc;
841} 843}
842 844
@@ -855,7 +857,7 @@ EXPORT_SYMBOL_GPL(iscsi_complete_pdu);
855int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt) 857int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt)
856{ 858{
857 struct iscsi_session *session = conn->session; 859 struct iscsi_session *session = conn->session;
858 struct iscsi_cmd_task *ctask; 860 struct iscsi_task *task;
859 uint32_t i; 861 uint32_t i;
860 862
861 if (itt == RESERVED_ITT) 863 if (itt == RESERVED_ITT)
@@ -878,11 +880,11 @@ int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt)
878 return ISCSI_ERR_BAD_ITT; 880 return ISCSI_ERR_BAD_ITT;
879 } 881 }
880 882
881 ctask = session->cmds[i]; 883 task = session->cmds[i];
882 if (ctask->sc && ctask->sc->SCp.phase != session->age) { 884 if (task->sc && task->sc->SCp.phase != session->age) {
883 iscsi_conn_printk(KERN_ERR, conn, 885 iscsi_conn_printk(KERN_ERR, conn,
884 "iscsi: ctask's session age %d, " 886 "iscsi: task's session age %d, "
885 "expected %d\n", ctask->sc->SCp.phase, 887 "expected %d\n", task->sc->SCp.phase,
886 session->age); 888 session->age);
887 return ISCSI_ERR_SESSION_FAILED; 889 return ISCSI_ERR_SESSION_FAILED;
888 } 890 }
@@ -890,11 +892,11 @@ int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt)
890} 892}
891EXPORT_SYMBOL_GPL(iscsi_verify_itt); 893EXPORT_SYMBOL_GPL(iscsi_verify_itt);
892 894
893struct iscsi_cmd_task * 895struct iscsi_task *
894iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt) 896iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt)
895{ 897{
896 struct iscsi_session *session = conn->session; 898 struct iscsi_session *session = conn->session;
897 struct iscsi_cmd_task *ctask; 899 struct iscsi_task *task;
898 uint32_t i; 900 uint32_t i;
899 901
900 if (iscsi_verify_itt(conn, itt)) 902 if (iscsi_verify_itt(conn, itt))
@@ -907,14 +909,14 @@ iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt)
907 if (i >= session->cmds_max) 909 if (i >= session->cmds_max)
908 return NULL; 910 return NULL;
909 911
910 ctask = session->cmds[i]; 912 task = session->cmds[i];
911 if (!ctask->sc) 913 if (!task->sc)
912 return NULL; 914 return NULL;
913 915
914 if (ctask->sc->SCp.phase != session->age) 916 if (task->sc->SCp.phase != session->age)
915 return NULL; 917 return NULL;
916 918
917 return ctask; 919 return task;
918} 920}
919EXPORT_SYMBOL_GPL(iscsi_itt_to_ctask); 921EXPORT_SYMBOL_GPL(iscsi_itt_to_ctask);
920 922
@@ -955,38 +957,38 @@ static int iscsi_check_cmdsn_window_closed(struct iscsi_conn *conn)
955 return 0; 957 return 0;
956} 958}
957 959
958static int iscsi_xmit_ctask(struct iscsi_conn *conn) 960static int iscsi_xmit_task(struct iscsi_conn *conn)
959{ 961{
960 struct iscsi_cmd_task *ctask = conn->ctask; 962 struct iscsi_task *task = conn->task;
961 int rc; 963 int rc;
962 964
963 __iscsi_get_ctask(ctask); 965 __iscsi_get_task(task);
964 spin_unlock_bh(&conn->session->lock); 966 spin_unlock_bh(&conn->session->lock);
965 rc = conn->session->tt->xmit_task(ctask); 967 rc = conn->session->tt->xmit_task(task);
966 spin_lock_bh(&conn->session->lock); 968 spin_lock_bh(&conn->session->lock);
967 __iscsi_put_ctask(ctask); 969 __iscsi_put_task(task);
968 if (!rc) 970 if (!rc)
969 /* done with this ctask */ 971 /* done with this task */
970 conn->ctask = NULL; 972 conn->task = NULL;
971 return rc; 973 return rc;
972} 974}
973 975
974/** 976/**
975 * iscsi_requeue_ctask - requeue ctask to run from session workqueue 977 * iscsi_requeue_task - requeue task to run from session workqueue
976 * @ctask: ctask to requeue 978 * @task: task to requeue
977 * 979 *
978 * LLDs that need to run a ctask from the session workqueue should call 980 * LLDs that need to run a task from the session workqueue should call
979 * this. The session lock must be held. This should only be called 981 * this. The session lock must be held. This should only be called
980 * by software drivers. 982 * by software drivers.
981 */ 983 */
982void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask) 984void iscsi_requeue_task(struct iscsi_task *task)
983{ 985{
984 struct iscsi_conn *conn = ctask->conn; 986 struct iscsi_conn *conn = task->conn;
985 987
986 list_move_tail(&ctask->running, &conn->requeue); 988 list_move_tail(&task->running, &conn->requeue);
987 scsi_queue_work(conn->session->host, &conn->xmitwork); 989 scsi_queue_work(conn->session->host, &conn->xmitwork);
988} 990}
989EXPORT_SYMBOL_GPL(iscsi_requeue_ctask); 991EXPORT_SYMBOL_GPL(iscsi_requeue_task);
990 992
991/** 993/**
992 * iscsi_data_xmit - xmit any command into the scheduled connection 994 * iscsi_data_xmit - xmit any command into the scheduled connection
@@ -1008,8 +1010,8 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
1008 return -ENODATA; 1010 return -ENODATA;
1009 } 1011 }
1010 1012
1011 if (conn->ctask) { 1013 if (conn->task) {
1012 rc = iscsi_xmit_ctask(conn); 1014 rc = iscsi_xmit_task(conn);
1013 if (rc) 1015 if (rc)
1014 goto again; 1016 goto again;
1015 } 1017 }
@@ -1021,14 +1023,14 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
1021 */ 1023 */
1022check_mgmt: 1024check_mgmt:
1023 while (!list_empty(&conn->mgmtqueue)) { 1025 while (!list_empty(&conn->mgmtqueue)) {
1024 conn->ctask = list_entry(conn->mgmtqueue.next, 1026 conn->task = list_entry(conn->mgmtqueue.next,
1025 struct iscsi_cmd_task, running); 1027 struct iscsi_task, running);
1026 if (iscsi_prep_mgmt_task(conn, conn->ctask)) { 1028 if (iscsi_prep_mgmt_task(conn, conn->task)) {
1027 __iscsi_put_ctask(conn->ctask); 1029 __iscsi_put_task(conn->task);
1028 conn->ctask = NULL; 1030 conn->task = NULL;
1029 continue; 1031 continue;
1030 } 1032 }
1031 rc = iscsi_xmit_ctask(conn); 1033 rc = iscsi_xmit_task(conn);
1032 if (rc) 1034 if (rc)
1033 goto again; 1035 goto again;
1034 } 1036 }
@@ -1038,21 +1040,21 @@ check_mgmt:
1038 if (conn->tmf_state == TMF_QUEUED) 1040 if (conn->tmf_state == TMF_QUEUED)
1039 break; 1041 break;
1040 1042
1041 conn->ctask = list_entry(conn->xmitqueue.next, 1043 conn->task = list_entry(conn->xmitqueue.next,
1042 struct iscsi_cmd_task, running); 1044 struct iscsi_task, running);
1043 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) { 1045 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) {
1044 fail_command(conn, conn->ctask, DID_IMM_RETRY << 16); 1046 fail_command(conn, conn->task, DID_IMM_RETRY << 16);
1045 continue; 1047 continue;
1046 } 1048 }
1047 if (iscsi_prep_scsi_cmd_pdu(conn->ctask)) { 1049 if (iscsi_prep_scsi_cmd_pdu(conn->task)) {
1048 fail_command(conn, conn->ctask, DID_ABORT << 16); 1050 fail_command(conn, conn->task, DID_ABORT << 16);
1049 continue; 1051 continue;
1050 } 1052 }
1051 rc = iscsi_xmit_ctask(conn); 1053 rc = iscsi_xmit_task(conn);
1052 if (rc) 1054 if (rc)
1053 goto again; 1055 goto again;
1054 /* 1056 /*
1055 * we could continuously get new ctask requests so 1057 * we could continuously get new task requests so
1056 * we need to check the mgmt queue for nops that need to 1058 * we need to check the mgmt queue for nops that need to
1057 * be sent to aviod starvation 1059 * be sent to aviod starvation
1058 */ 1060 */
@@ -1070,11 +1072,11 @@ check_mgmt:
1070 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) 1072 if (conn->session->state == ISCSI_STATE_LOGGING_OUT)
1071 break; 1073 break;
1072 1074
1073 conn->ctask = list_entry(conn->requeue.next, 1075 conn->task = list_entry(conn->requeue.next,
1074 struct iscsi_cmd_task, running); 1076 struct iscsi_task, running);
1075 conn->ctask->state = ISCSI_TASK_RUNNING; 1077 conn->task->state = ISCSI_TASK_RUNNING;
1076 list_move_tail(conn->requeue.next, &conn->run_list); 1078 list_move_tail(conn->requeue.next, &conn->run_list);
1077 rc = iscsi_xmit_ctask(conn); 1079 rc = iscsi_xmit_task(conn);
1078 if (rc) 1080 if (rc)
1079 goto again; 1081 goto again;
1080 if (!list_empty(&conn->mgmtqueue)) 1082 if (!list_empty(&conn->mgmtqueue))
@@ -1123,7 +1125,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
1123 int reason = 0; 1125 int reason = 0;
1124 struct iscsi_session *session; 1126 struct iscsi_session *session;
1125 struct iscsi_conn *conn; 1127 struct iscsi_conn *conn;
1126 struct iscsi_cmd_task *ctask = NULL; 1128 struct iscsi_task *task = NULL;
1127 1129
1128 sc->scsi_done = done; 1130 sc->scsi_done = done;
1129 sc->result = 0; 1131 sc->result = 0;
@@ -1191,31 +1193,31 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
1191 goto reject; 1193 goto reject;
1192 } 1194 }
1193 1195
1194 if (!__kfifo_get(session->cmdpool.queue, (void*)&ctask, 1196 if (!__kfifo_get(session->cmdpool.queue, (void*)&task,
1195 sizeof(void*))) { 1197 sizeof(void*))) {
1196 reason = FAILURE_OOM; 1198 reason = FAILURE_OOM;
1197 goto reject; 1199 goto reject;
1198 } 1200 }
1199 sc->SCp.phase = session->age; 1201 sc->SCp.phase = session->age;
1200 sc->SCp.ptr = (char *)ctask; 1202 sc->SCp.ptr = (char *)task;
1201 1203
1202 atomic_set(&ctask->refcount, 1); 1204 atomic_set(&task->refcount, 1);
1203 ctask->state = ISCSI_TASK_PENDING; 1205 task->state = ISCSI_TASK_PENDING;
1204 ctask->conn = conn; 1206 task->conn = conn;
1205 ctask->sc = sc; 1207 task->sc = sc;
1206 INIT_LIST_HEAD(&ctask->running); 1208 INIT_LIST_HEAD(&task->running);
1207 list_add_tail(&ctask->running, &conn->xmitqueue); 1209 list_add_tail(&task->running, &conn->xmitqueue);
1208 1210
1209 if (session->tt->caps & CAP_DATA_PATH_OFFLOAD) { 1211 if (session->tt->caps & CAP_DATA_PATH_OFFLOAD) {
1210 if (iscsi_prep_scsi_cmd_pdu(ctask)) { 1212 if (iscsi_prep_scsi_cmd_pdu(task)) {
1211 sc->result = DID_ABORT << 16; 1213 sc->result = DID_ABORT << 16;
1212 sc->scsi_done = NULL; 1214 sc->scsi_done = NULL;
1213 iscsi_complete_command(ctask); 1215 iscsi_complete_command(task);
1214 goto fault; 1216 goto fault;
1215 } 1217 }
1216 if (session->tt->xmit_task(ctask)) { 1218 if (session->tt->xmit_task(task)) {
1217 sc->scsi_done = NULL; 1219 sc->scsi_done = NULL;
1218 iscsi_complete_command(ctask); 1220 iscsi_complete_command(task);
1219 reason = FAILURE_SESSION_NOT_READY; 1221 reason = FAILURE_SESSION_NOT_READY;
1220 goto reject; 1222 goto reject;
1221 } 1223 }
@@ -1336,16 +1338,16 @@ static void iscsi_tmf_timedout(unsigned long data)
1336 spin_unlock(&session->lock); 1338 spin_unlock(&session->lock);
1337} 1339}
1338 1340
1339static int iscsi_exec_ctask_mgmt_fn(struct iscsi_conn *conn, 1341static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
1340 struct iscsi_tm *hdr, int age, 1342 struct iscsi_tm *hdr, int age,
1341 int timeout) 1343 int timeout)
1342{ 1344{
1343 struct iscsi_session *session = conn->session; 1345 struct iscsi_session *session = conn->session;
1344 struct iscsi_cmd_task *ctask; 1346 struct iscsi_task *task;
1345 1347
1346 ctask = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)hdr, 1348 task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)hdr,
1347 NULL, 0); 1349 NULL, 0);
1348 if (!ctask) { 1350 if (!task) {
1349 spin_unlock_bh(&session->lock); 1351 spin_unlock_bh(&session->lock);
1350 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); 1352 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
1351 spin_lock_bh(&session->lock); 1353 spin_lock_bh(&session->lock);
@@ -1379,7 +1381,7 @@ static int iscsi_exec_ctask_mgmt_fn(struct iscsi_conn *conn,
1379 1381
1380 mutex_lock(&session->eh_mutex); 1382 mutex_lock(&session->eh_mutex);
1381 spin_lock_bh(&session->lock); 1383 spin_lock_bh(&session->lock);
1382 /* if the session drops it will clean up the ctask */ 1384 /* if the session drops it will clean up the task */
1383 if (age != session->age || 1385 if (age != session->age ||
1384 session->state != ISCSI_STATE_LOGGED_IN) 1386 session->state != ISCSI_STATE_LOGGED_IN)
1385 return -ENOTCONN; 1387 return -ENOTCONN;
@@ -1393,34 +1395,34 @@ static int iscsi_exec_ctask_mgmt_fn(struct iscsi_conn *conn,
1393static void fail_all_commands(struct iscsi_conn *conn, unsigned lun, 1395static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
1394 int error) 1396 int error)
1395{ 1397{
1396 struct iscsi_cmd_task *ctask, *tmp; 1398 struct iscsi_task *task, *tmp;
1397 1399
1398 if (conn->ctask && (conn->ctask->sc->device->lun == lun || lun == -1)) 1400 if (conn->task && (conn->task->sc->device->lun == lun || lun == -1))
1399 conn->ctask = NULL; 1401 conn->task = NULL;
1400 1402
1401 /* flush pending */ 1403 /* flush pending */
1402 list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) { 1404 list_for_each_entry_safe(task, tmp, &conn->xmitqueue, running) {
1403 if (lun == ctask->sc->device->lun || lun == -1) { 1405 if (lun == task->sc->device->lun || lun == -1) {
1404 debug_scsi("failing pending sc %p itt 0x%x\n", 1406 debug_scsi("failing pending sc %p itt 0x%x\n",
1405 ctask->sc, ctask->itt); 1407 task->sc, task->itt);
1406 fail_command(conn, ctask, error << 16); 1408 fail_command(conn, task, error << 16);
1407 } 1409 }
1408 } 1410 }
1409 1411
1410 list_for_each_entry_safe(ctask, tmp, &conn->requeue, running) { 1412 list_for_each_entry_safe(task, tmp, &conn->requeue, running) {
1411 if (lun == ctask->sc->device->lun || lun == -1) { 1413 if (lun == task->sc->device->lun || lun == -1) {
1412 debug_scsi("failing requeued sc %p itt 0x%x\n", 1414 debug_scsi("failing requeued sc %p itt 0x%x\n",
1413 ctask->sc, ctask->itt); 1415 task->sc, task->itt);
1414 fail_command(conn, ctask, error << 16); 1416 fail_command(conn, task, error << 16);
1415 } 1417 }
1416 } 1418 }
1417 1419
1418 /* fail all other running */ 1420 /* fail all other running */
1419 list_for_each_entry_safe(ctask, tmp, &conn->run_list, running) { 1421 list_for_each_entry_safe(task, tmp, &conn->run_list, running) {
1420 if (lun == ctask->sc->device->lun || lun == -1) { 1422 if (lun == task->sc->device->lun || lun == -1) {
1421 debug_scsi("failing in progress sc %p itt 0x%x\n", 1423 debug_scsi("failing in progress sc %p itt 0x%x\n",
1422 ctask->sc, ctask->itt); 1424 task->sc, task->itt);
1423 fail_command(conn, ctask, DID_BUS_BUSY << 16); 1425 fail_command(conn, task, DID_BUS_BUSY << 16);
1424 } 1426 }
1425 } 1427 }
1426} 1428}
@@ -1486,7 +1488,7 @@ static enum scsi_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
1486 jiffies)) 1488 jiffies))
1487 rc = EH_RESET_TIMER; 1489 rc = EH_RESET_TIMER;
1488 /* if in the middle of checking the transport then give us more time */ 1490 /* if in the middle of checking the transport then give us more time */
1489 if (conn->ping_ctask) 1491 if (conn->ping_task)
1490 rc = EH_RESET_TIMER; 1492 rc = EH_RESET_TIMER;
1491done: 1493done:
1492 spin_unlock(&session->lock); 1494 spin_unlock(&session->lock);
@@ -1510,7 +1512,7 @@ static void iscsi_check_transport_timeouts(unsigned long data)
1510 1512
1511 recv_timeout *= HZ; 1513 recv_timeout *= HZ;
1512 last_recv = conn->last_recv; 1514 last_recv = conn->last_recv;
1513 if (conn->ping_ctask && 1515 if (conn->ping_task &&
1514 time_before_eq(conn->last_ping + (conn->ping_timeout * HZ), 1516 time_before_eq(conn->last_ping + (conn->ping_timeout * HZ),
1515 jiffies)) { 1517 jiffies)) {
1516 iscsi_conn_printk(KERN_ERR, conn, "ping timeout of %d secs " 1518 iscsi_conn_printk(KERN_ERR, conn, "ping timeout of %d secs "
@@ -1536,16 +1538,16 @@ done:
1536 spin_unlock(&session->lock); 1538 spin_unlock(&session->lock);
1537} 1539}
1538 1540
1539static void iscsi_prep_abort_ctask_pdu(struct iscsi_cmd_task *ctask, 1541static void iscsi_prep_abort_task_pdu(struct iscsi_task *task,
1540 struct iscsi_tm *hdr) 1542 struct iscsi_tm *hdr)
1541{ 1543{
1542 memset(hdr, 0, sizeof(*hdr)); 1544 memset(hdr, 0, sizeof(*hdr));
1543 hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE; 1545 hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE;
1544 hdr->flags = ISCSI_TM_FUNC_ABORT_TASK & ISCSI_FLAG_TM_FUNC_MASK; 1546 hdr->flags = ISCSI_TM_FUNC_ABORT_TASK & ISCSI_FLAG_TM_FUNC_MASK;
1545 hdr->flags |= ISCSI_FLAG_CMD_FINAL; 1547 hdr->flags |= ISCSI_FLAG_CMD_FINAL;
1546 memcpy(hdr->lun, ctask->hdr->lun, sizeof(hdr->lun)); 1548 memcpy(hdr->lun, task->hdr->lun, sizeof(hdr->lun));
1547 hdr->rtt = ctask->hdr->itt; 1549 hdr->rtt = task->hdr->itt;
1548 hdr->refcmdsn = ctask->hdr->cmdsn; 1550 hdr->refcmdsn = task->hdr->cmdsn;
1549} 1551}
1550 1552
1551int iscsi_eh_abort(struct scsi_cmnd *sc) 1553int iscsi_eh_abort(struct scsi_cmnd *sc)
@@ -1553,7 +1555,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
1553 struct iscsi_cls_session *cls_session; 1555 struct iscsi_cls_session *cls_session;
1554 struct iscsi_session *session; 1556 struct iscsi_session *session;
1555 struct iscsi_conn *conn; 1557 struct iscsi_conn *conn;
1556 struct iscsi_cmd_task *ctask; 1558 struct iscsi_task *task;
1557 struct iscsi_tm *hdr; 1559 struct iscsi_tm *hdr;
1558 int rc, age; 1560 int rc, age;
1559 1561
@@ -1588,17 +1590,17 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
1588 conn->eh_abort_cnt++; 1590 conn->eh_abort_cnt++;
1589 age = session->age; 1591 age = session->age;
1590 1592
1591 ctask = (struct iscsi_cmd_task *)sc->SCp.ptr; 1593 task = (struct iscsi_task *)sc->SCp.ptr;
1592 debug_scsi("aborting [sc %p itt 0x%x]\n", sc, ctask->itt); 1594 debug_scsi("aborting [sc %p itt 0x%x]\n", sc, task->itt);
1593 1595
1594 /* ctask completed before time out */ 1596 /* task completed before time out */
1595 if (!ctask->sc) { 1597 if (!task->sc) {
1596 debug_scsi("sc completed while abort in progress\n"); 1598 debug_scsi("sc completed while abort in progress\n");
1597 goto success; 1599 goto success;
1598 } 1600 }
1599 1601
1600 if (ctask->state == ISCSI_TASK_PENDING) { 1602 if (task->state == ISCSI_TASK_PENDING) {
1601 fail_command(conn, ctask, DID_ABORT << 16); 1603 fail_command(conn, task, DID_ABORT << 16);
1602 goto success; 1604 goto success;
1603 } 1605 }
1604 1606
@@ -1608,9 +1610,9 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
1608 conn->tmf_state = TMF_QUEUED; 1610 conn->tmf_state = TMF_QUEUED;
1609 1611
1610 hdr = &conn->tmhdr; 1612 hdr = &conn->tmhdr;
1611 iscsi_prep_abort_ctask_pdu(ctask, hdr); 1613 iscsi_prep_abort_task_pdu(task, hdr);
1612 1614
1613 if (iscsi_exec_ctask_mgmt_fn(conn, hdr, age, session->abort_timeout)) { 1615 if (iscsi_exec_task_mgmt_fn(conn, hdr, age, session->abort_timeout)) {
1614 rc = FAILED; 1616 rc = FAILED;
1615 goto failed; 1617 goto failed;
1616 } 1618 }
@@ -1620,11 +1622,11 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
1620 spin_unlock_bh(&session->lock); 1622 spin_unlock_bh(&session->lock);
1621 iscsi_suspend_tx(conn); 1623 iscsi_suspend_tx(conn);
1622 /* 1624 /*
1623 * clean up ctask if aborted. grab the recv lock as a writer 1625 * clean up task if aborted. grab the recv lock as a writer
1624 */ 1626 */
1625 write_lock_bh(conn->recv_lock); 1627 write_lock_bh(conn->recv_lock);
1626 spin_lock(&session->lock); 1628 spin_lock(&session->lock);
1627 fail_command(conn, ctask, DID_ABORT << 16); 1629 fail_command(conn, task, DID_ABORT << 16);
1628 conn->tmf_state = TMF_INITIAL; 1630 conn->tmf_state = TMF_INITIAL;
1629 spin_unlock(&session->lock); 1631 spin_unlock(&session->lock);
1630 write_unlock_bh(conn->recv_lock); 1632 write_unlock_bh(conn->recv_lock);
@@ -1637,7 +1639,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
1637 case TMF_NOT_FOUND: 1639 case TMF_NOT_FOUND:
1638 if (!sc->SCp.ptr) { 1640 if (!sc->SCp.ptr) {
1639 conn->tmf_state = TMF_INITIAL; 1641 conn->tmf_state = TMF_INITIAL;
1640 /* ctask completed before tmf abort response */ 1642 /* task completed before tmf abort response */
1641 debug_scsi("sc completed while abort in progress\n"); 1643 debug_scsi("sc completed while abort in progress\n");
1642 goto success; 1644 goto success;
1643 } 1645 }
@@ -1650,7 +1652,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
1650success: 1652success:
1651 spin_unlock_bh(&session->lock); 1653 spin_unlock_bh(&session->lock);
1652success_unlocked: 1654success_unlocked:
1653 debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, ctask->itt); 1655 debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, task->itt);
1654 mutex_unlock(&session->eh_mutex); 1656 mutex_unlock(&session->eh_mutex);
1655 return SUCCESS; 1657 return SUCCESS;
1656 1658
@@ -1658,7 +1660,7 @@ failed:
1658 spin_unlock_bh(&session->lock); 1660 spin_unlock_bh(&session->lock);
1659failed_unlocked: 1661failed_unlocked:
1660 debug_scsi("abort failed [sc %p itt 0x%x]\n", sc, 1662 debug_scsi("abort failed [sc %p itt 0x%x]\n", sc,
1661 ctask ? ctask->itt : 0); 1663 task ? task->itt : 0);
1662 mutex_unlock(&session->eh_mutex); 1664 mutex_unlock(&session->eh_mutex);
1663 return FAILED; 1665 return FAILED;
1664} 1666}
@@ -1705,7 +1707,7 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc)
1705 hdr = &conn->tmhdr; 1707 hdr = &conn->tmhdr;
1706 iscsi_prep_lun_reset_pdu(sc, hdr); 1708 iscsi_prep_lun_reset_pdu(sc, hdr);
1707 1709
1708 if (iscsi_exec_ctask_mgmt_fn(conn, hdr, session->age, 1710 if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age,
1709 session->lu_reset_timeout)) { 1711 session->lu_reset_timeout)) {
1710 rc = FAILED; 1712 rc = FAILED;
1711 goto unlock; 1713 goto unlock;
@@ -1886,7 +1888,7 @@ EXPORT_SYMBOL_GPL(iscsi_host_free);
1886 * @iscsit: iscsi transport template 1888 * @iscsit: iscsi transport template
1887 * @shost: scsi host 1889 * @shost: scsi host
1888 * @cmds_max: session can queue 1890 * @cmds_max: session can queue
1889 * @cmd_ctask_size: LLD ctask private data size 1891 * @cmd_task_size: LLD task private data size
1890 * @initial_cmdsn: initial CmdSN 1892 * @initial_cmdsn: initial CmdSN
1891 * 1893 *
1892 * This can be used by software iscsi_transports that allocate 1894 * This can be used by software iscsi_transports that allocate
@@ -1894,7 +1896,7 @@ EXPORT_SYMBOL_GPL(iscsi_host_free);
1894 */ 1896 */
1895struct iscsi_cls_session * 1897struct iscsi_cls_session *
1896iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost, 1898iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
1897 uint16_t scsi_cmds_max, int cmd_ctask_size, 1899 uint16_t scsi_cmds_max, int cmd_task_size,
1898 uint32_t initial_cmdsn) 1900 uint32_t initial_cmdsn)
1899{ 1901{
1900 struct iscsi_session *session; 1902 struct iscsi_session *session;
@@ -1902,7 +1904,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
1902 int cmd_i, cmds_max; 1904 int cmd_i, cmds_max;
1903 1905
1904 /* 1906 /*
1905 * The iscsi layer needs some ctasks for nop handling and tmfs. 1907 * The iscsi layer needs some tasks for nop handling and tmfs.
1906 */ 1908 */
1907 if (scsi_cmds_max < 1) 1909 if (scsi_cmds_max < 1)
1908 scsi_cmds_max = ISCSI_MGMT_CMDS_MAX; 1910 scsi_cmds_max = ISCSI_MGMT_CMDS_MAX;
@@ -1939,17 +1941,17 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
1939 /* initialize SCSI PDU commands pool */ 1941 /* initialize SCSI PDU commands pool */
1940 if (iscsi_pool_init(&session->cmdpool, session->cmds_max, 1942 if (iscsi_pool_init(&session->cmdpool, session->cmds_max,
1941 (void***)&session->cmds, 1943 (void***)&session->cmds,
1942 cmd_ctask_size + sizeof(struct iscsi_cmd_task))) 1944 cmd_task_size + sizeof(struct iscsi_task)))
1943 goto cmdpool_alloc_fail; 1945 goto cmdpool_alloc_fail;
1944 1946
1945 /* pre-format cmds pool with ITT */ 1947 /* pre-format cmds pool with ITT */
1946 for (cmd_i = 0; cmd_i < session->cmds_max; cmd_i++) { 1948 for (cmd_i = 0; cmd_i < session->cmds_max; cmd_i++) {
1947 struct iscsi_cmd_task *ctask = session->cmds[cmd_i]; 1949 struct iscsi_task *task = session->cmds[cmd_i];
1948 1950
1949 if (cmd_ctask_size) 1951 if (cmd_task_size)
1950 ctask->dd_data = &ctask[1]; 1952 task->dd_data = &task[1];
1951 ctask->itt = cmd_i; 1953 task->itt = cmd_i;
1952 INIT_LIST_HEAD(&ctask->running); 1954 INIT_LIST_HEAD(&task->running);
1953 } 1955 }
1954 1956
1955 if (!try_module_get(iscsit->owner)) 1957 if (!try_module_get(iscsit->owner))
@@ -2035,30 +2037,30 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size,
2035 INIT_LIST_HEAD(&conn->requeue); 2037 INIT_LIST_HEAD(&conn->requeue);
2036 INIT_WORK(&conn->xmitwork, iscsi_xmitworker); 2038 INIT_WORK(&conn->xmitwork, iscsi_xmitworker);
2037 2039
2038 /* allocate login_ctask used for the login/text sequences */ 2040 /* allocate login_task used for the login/text sequences */
2039 spin_lock_bh(&session->lock); 2041 spin_lock_bh(&session->lock);
2040 if (!__kfifo_get(session->cmdpool.queue, 2042 if (!__kfifo_get(session->cmdpool.queue,
2041 (void*)&conn->login_ctask, 2043 (void*)&conn->login_task,
2042 sizeof(void*))) { 2044 sizeof(void*))) {
2043 spin_unlock_bh(&session->lock); 2045 spin_unlock_bh(&session->lock);
2044 goto login_ctask_alloc_fail; 2046 goto login_task_alloc_fail;
2045 } 2047 }
2046 spin_unlock_bh(&session->lock); 2048 spin_unlock_bh(&session->lock);
2047 2049
2048 data = kmalloc(ISCSI_DEF_MAX_RECV_SEG_LEN, GFP_KERNEL); 2050 data = kmalloc(ISCSI_DEF_MAX_RECV_SEG_LEN, GFP_KERNEL);
2049 if (!data) 2051 if (!data)
2050 goto login_ctask_data_alloc_fail; 2052 goto login_task_data_alloc_fail;
2051 conn->login_ctask->data = conn->data = data; 2053 conn->login_task->data = conn->data = data;
2052 2054
2053 init_timer(&conn->tmf_timer); 2055 init_timer(&conn->tmf_timer);
2054 init_waitqueue_head(&conn->ehwait); 2056 init_waitqueue_head(&conn->ehwait);
2055 2057
2056 return cls_conn; 2058 return cls_conn;
2057 2059
2058login_ctask_data_alloc_fail: 2060login_task_data_alloc_fail:
2059 __kfifo_put(session->cmdpool.queue, (void*)&conn->login_ctask, 2061 __kfifo_put(session->cmdpool.queue, (void*)&conn->login_task,
2060 sizeof(void*)); 2062 sizeof(void*));
2061login_ctask_alloc_fail: 2063login_task_alloc_fail:
2062 iscsi_destroy_conn(cls_conn); 2064 iscsi_destroy_conn(cls_conn);
2063 return NULL; 2065 return NULL;
2064} 2066}
@@ -2118,7 +2120,7 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
2118 spin_lock_bh(&session->lock); 2120 spin_lock_bh(&session->lock);
2119 kfree(conn->data); 2121 kfree(conn->data);
2120 kfree(conn->persistent_address); 2122 kfree(conn->persistent_address);
2121 __kfifo_put(session->cmdpool.queue, (void*)&conn->login_ctask, 2123 __kfifo_put(session->cmdpool.queue, (void*)&conn->login_task,
2122 sizeof(void*)); 2124 sizeof(void*));
2123 if (session->leadconn == conn) 2125 if (session->leadconn == conn)
2124 session->leadconn = NULL; 2126 session->leadconn = NULL;
@@ -2199,23 +2201,23 @@ EXPORT_SYMBOL_GPL(iscsi_conn_start);
2199static void 2201static void
2200flush_control_queues(struct iscsi_session *session, struct iscsi_conn *conn) 2202flush_control_queues(struct iscsi_session *session, struct iscsi_conn *conn)
2201{ 2203{
2202 struct iscsi_cmd_task *ctask, *tmp; 2204 struct iscsi_task *task, *tmp;
2203 2205
2204 /* handle pending */ 2206 /* handle pending */
2205 list_for_each_entry_safe(ctask, tmp, &conn->mgmtqueue, running) { 2207 list_for_each_entry_safe(task, tmp, &conn->mgmtqueue, running) {
2206 debug_scsi("flushing pending mgmt ctask itt 0x%x\n", ctask->itt); 2208 debug_scsi("flushing pending mgmt task itt 0x%x\n", task->itt);
2207 /* release ref from prep ctask */ 2209 /* release ref from prep task */
2208 __iscsi_put_ctask(ctask); 2210 __iscsi_put_task(task);
2209 } 2211 }
2210 2212
2211 /* handle running */ 2213 /* handle running */
2212 list_for_each_entry_safe(ctask, tmp, &conn->mgmt_run_list, running) { 2214 list_for_each_entry_safe(task, tmp, &conn->mgmt_run_list, running) {
2213 debug_scsi("flushing running mgmt ctask itt 0x%x\n", ctask->itt); 2215 debug_scsi("flushing running mgmt task itt 0x%x\n", task->itt);
2214 /* release ref from prep ctask */ 2216 /* release ref from prep task */
2215 __iscsi_put_ctask(ctask); 2217 __iscsi_put_task(task);
2216 } 2218 }
2217 2219
2218 conn->ctask = NULL; 2220 conn->task = NULL;
2219} 2221}
2220 2222
2221static void iscsi_start_session_recovery(struct iscsi_session *session, 2223static void iscsi_start_session_recovery(struct iscsi_session *session,
@@ -2246,7 +2248,7 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
2246 2248
2247 /* 2249 /*
2248 * When this is called for the in_login state, we only want to clean 2250 * When this is called for the in_login state, we only want to clean
2249 * up the login ctask and connection. We do not need to block and set 2251 * up the login task and connection. We do not need to block and set
2250 * the recovery state again 2252 * the recovery state again
2251 */ 2253 */
2252 if (flag == STOP_CONN_TERM) 2254 if (flag == STOP_CONN_TERM)
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index d1c36759b350..176353c117b6 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -92,7 +92,7 @@ enum {
92 ISCSI_TASK_RUNNING, 92 ISCSI_TASK_RUNNING,
93}; 93};
94 94
95struct iscsi_cmd_task { 95struct iscsi_task {
96 /* 96 /*
97 * Because LLDs allocate their hdr differently, this is a pointer 97 * Because LLDs allocate their hdr differently, this is a pointer
98 * and length to that storage. It must be setup at session 98 * and length to that storage. It must be setup at session
@@ -120,9 +120,9 @@ struct iscsi_cmd_task {
120 void *dd_data; /* driver/transport data */ 120 void *dd_data; /* driver/transport data */
121}; 121};
122 122
123static inline void* iscsi_next_hdr(struct iscsi_cmd_task *ctask) 123static inline void* iscsi_next_hdr(struct iscsi_task *task)
124{ 124{
125 return (void*)ctask->hdr + ctask->hdr_len; 125 return (void*)task->hdr + task->hdr_len;
126} 126}
127 127
128/* Connection's states */ 128/* Connection's states */
@@ -151,7 +151,7 @@ struct iscsi_conn {
151 unsigned long last_ping; 151 unsigned long last_ping;
152 int ping_timeout; 152 int ping_timeout;
153 int recv_timeout; 153 int recv_timeout;
154 struct iscsi_cmd_task *ping_ctask; 154 struct iscsi_task *ping_task;
155 155
156 /* iSCSI connection-wide sequencing */ 156 /* iSCSI connection-wide sequencing */
157 uint32_t exp_statsn; 157 uint32_t exp_statsn;
@@ -167,8 +167,8 @@ struct iscsi_conn {
167 * should always fit in this buffer 167 * should always fit in this buffer
168 */ 168 */
169 char *data; 169 char *data;
170 struct iscsi_cmd_task *login_ctask; /* mtask used for login/text */ 170 struct iscsi_task *login_task; /* mtask used for login/text */
171 struct iscsi_cmd_task *ctask; /* xmit task in progress */ 171 struct iscsi_task *task; /* xmit task in progress */
172 172
173 /* xmit */ 173 /* xmit */
174 struct list_head mgmtqueue; /* mgmt (control) xmit queue */ 174 struct list_head mgmtqueue; /* mgmt (control) xmit queue */
@@ -285,7 +285,7 @@ struct iscsi_session {
285 285
286 int scsi_cmds_max; /* max scsi commands */ 286 int scsi_cmds_max; /* max scsi commands */
287 int cmds_max; /* size of cmds array */ 287 int cmds_max; /* size of cmds array */
288 struct iscsi_cmd_task **cmds; /* Original Cmds arr */ 288 struct iscsi_task **cmds; /* Original Cmds arr */
289 struct iscsi_pool cmdpool; /* PDU's pool */ 289 struct iscsi_pool cmdpool; /* PDU's pool */
290}; 290};
291 291
@@ -365,16 +365,16 @@ extern void iscsi_suspend_tx(struct iscsi_conn *conn);
365 * pdu and task processing 365 * pdu and task processing
366 */ 366 */
367extern void iscsi_update_cmdsn(struct iscsi_session *, struct iscsi_nopin *); 367extern void iscsi_update_cmdsn(struct iscsi_session *, struct iscsi_nopin *);
368extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *, 368extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_task *,
369 struct iscsi_data *hdr); 369 struct iscsi_data *hdr);
370extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *, 370extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *,
371 char *, uint32_t); 371 char *, uint32_t);
372extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *, 372extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
373 char *, int); 373 char *, int);
374extern int iscsi_verify_itt(struct iscsi_conn *, itt_t); 374extern int iscsi_verify_itt(struct iscsi_conn *, itt_t);
375extern struct iscsi_cmd_task *iscsi_itt_to_ctask(struct iscsi_conn *, itt_t); 375extern struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *, itt_t);
376extern void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask); 376extern void iscsi_requeue_task(struct iscsi_task *task);
377extern void iscsi_put_ctask(struct iscsi_cmd_task *ctask); 377extern void iscsi_put_task(struct iscsi_task *task);
378 378
379/* 379/*
380 * generic helpers 380 * generic helpers
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 3f24503dfdf9..0553240796e9 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -33,7 +33,7 @@ struct iscsi_transport;
33struct Scsi_Host; 33struct Scsi_Host;
34struct iscsi_cls_conn; 34struct iscsi_cls_conn;
35struct iscsi_conn; 35struct iscsi_conn;
36struct iscsi_cmd_task; 36struct iscsi_task;
37struct sockaddr; 37struct sockaddr;
38 38
39/** 39/**
@@ -112,10 +112,10 @@ struct iscsi_transport {
112 char *data, uint32_t data_size); 112 char *data, uint32_t data_size);
113 void (*get_stats) (struct iscsi_cls_conn *conn, 113 void (*get_stats) (struct iscsi_cls_conn *conn,
114 struct iscsi_stats *stats); 114 struct iscsi_stats *stats);
115 int (*init_task) (struct iscsi_cmd_task *task); 115 int (*init_task) (struct iscsi_task *task);
116 int (*xmit_task) (struct iscsi_cmd_task *task); 116 int (*xmit_task) (struct iscsi_task *task);
117 void (*cleanup_task) (struct iscsi_conn *conn, 117 void (*cleanup_task) (struct iscsi_conn *conn,
118 struct iscsi_cmd_task *task); 118 struct iscsi_task *task);
119 void (*session_recovery_timedout) (struct iscsi_cls_session *session); 119 void (*session_recovery_timedout) (struct iscsi_cls_session *session);
120 int (*ep_connect) (struct sockaddr *dst_addr, int non_blocking, 120 int (*ep_connect) (struct sockaddr *dst_addr, int non_blocking,
121 uint64_t *ep_handle); 121 uint64_t *ep_handle);