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17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/types.h>
20#include <linux/blkdev.h>
21#include <linux/interrupt.h>
22#include <linux/pci.h>
23#include <linux/delay.h>
24#include <linux/list.h>
25#include <linux/workqueue.h>
26#include <asm/unaligned.h>
27#include <scsi/scsi.h>
28#include <scsi/scsi_host.h>
29#include <scsi/scsi_tcq.h>
30
31#include "qla_def.h"
32#include "qla_target.h"
33
34static int ql2xtgt_tape_enable;
35module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR);
36MODULE_PARM_DESC(ql2xtgt_tape_enable,
37 "Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
38
39static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
40module_param(qlini_mode, charp, S_IRUGO);
41MODULE_PARM_DESC(qlini_mode,
42 "Determines when initiator mode will be enabled. Possible values: "
43 "\"exclusive\" - initiator mode will be enabled on load, "
44 "disabled on enabling target mode and then on disabling target mode "
45 "enabled back; "
46 "\"disabled\" - initiator mode will never be enabled; "
47 "\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
48 "when ready "
49 "\"enabled\" (default) - initiator mode will always stay enabled.");
50
51static int ql_dm_tgt_ex_pct = 0;
52module_param(ql_dm_tgt_ex_pct, int, S_IRUGO|S_IWUSR);
53MODULE_PARM_DESC(ql_dm_tgt_ex_pct,
54 "For Dual Mode (qlini_mode=dual), this parameter determines "
55 "the percentage of exchanges/cmds FW will allocate resources "
56 "for Target mode.");
57
58int ql2xuctrlirq = 1;
59module_param(ql2xuctrlirq, int, 0644);
60MODULE_PARM_DESC(ql2xuctrlirq,
61 "User to control IRQ placement via smp_affinity."
62 "Valid with qlini_mode=disabled."
63 "1(default): enable");
64
65int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
66
67static int qla_sam_status = SAM_STAT_BUSY;
68static int tc_sam_status = SAM_STAT_TASK_SET_FULL;
69
70
71
72
73enum fcp_resp_rsp_codes {
74 FCP_TMF_CMPL = 0,
75 FCP_DATA_LEN_INVALID = 1,
76 FCP_CMND_FIELDS_INVALID = 2,
77 FCP_DATA_PARAM_MISMATCH = 3,
78 FCP_TMF_REJECTED = 4,
79 FCP_TMF_FAILED = 5,
80 FCP_TMF_INVALID_LUN = 9,
81};
82
83
84
85
86#define FCP_PTA_SIMPLE 0
87#define FCP_PTA_HEADQ 1
88#define FCP_PTA_ORDERED 2
89#define FCP_PTA_ACA 4
90#define FCP_PTA_MASK 7
91#define FCP_PRI_SHIFT 3
92#define FCP_PRI_RESVD_MASK 0x80
93
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106
107
108static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
109 struct atio_from_isp *pkt, uint8_t);
110static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp,
111 response_t *pkt);
112static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
113 int fn, void *iocb, int flags);
114static void qlt_send_term_exchange(struct qla_qpair *, struct qla_tgt_cmd
115 *cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort);
116static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
117 struct atio_from_isp *atio, uint16_t status, int qfull);
118static void qlt_disable_vha(struct scsi_qla_host *vha);
119static void qlt_clear_tgt_db(struct qla_tgt *tgt);
120static void qlt_send_notify_ack(struct qla_qpair *qpair,
121 struct imm_ntfy_from_isp *ntfy,
122 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
123 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan);
124static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
125 struct imm_ntfy_from_isp *imm, int ha_locked);
126static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
127 fc_port_t *fcport, bool local);
128void qlt_unreg_sess(struct fc_port *sess);
129static void qlt_24xx_handle_abts(struct scsi_qla_host *,
130 struct abts_recv_from_24xx *);
131static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *,
132 uint16_t);
133static int qlt_check_reserve_free_req(struct qla_qpair *qpair, uint32_t);
134static inline uint32_t qlt_make_handle(struct qla_qpair *);
135
136
137
138
139static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
140struct kmem_cache *qla_tgt_plogi_cachep;
141static mempool_t *qla_tgt_mgmt_cmd_mempool;
142static struct workqueue_struct *qla_tgt_wq;
143static DEFINE_MUTEX(qla_tgt_mutex);
144static LIST_HEAD(qla_tgt_glist);
145
146static const char *prot_op_str(u32 prot_op)
147{
148 switch (prot_op) {
149 case TARGET_PROT_NORMAL: return "NORMAL";
150 case TARGET_PROT_DIN_INSERT: return "DIN_INSERT";
151 case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT";
152 case TARGET_PROT_DIN_STRIP: return "DIN_STRIP";
153 case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP";
154 case TARGET_PROT_DIN_PASS: return "DIN_PASS";
155 case TARGET_PROT_DOUT_PASS: return "DOUT_PASS";
156 default: return "UNKNOWN";
157 }
158}
159
160
161
162void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
163{
164 scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
165 *dest = atomic_inc_return(&base_vha->generation_tick);
166
167 wmb();
168}
169
170
171static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
172{
173
174 if (unlikely(vha->marker_needed != 0)) {
175 int rc = qla2x00_issue_marker(vha, vha_locked);
176
177 if (rc != QLA_SUCCESS) {
178 ql_dbg(ql_dbg_tgt, vha, 0xe03d,
179 "qla_target(%d): issue_marker() failed\n",
180 vha->vp_idx);
181 }
182 return rc;
183 }
184 return QLA_SUCCESS;
185}
186
187static inline
188struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha,
189 be_id_t d_id)
190{
191 struct scsi_qla_host *host;
192 uint32_t key;
193
194 if (vha->d_id.b.area == d_id.area &&
195 vha->d_id.b.domain == d_id.domain &&
196 vha->d_id.b.al_pa == d_id.al_pa)
197 return vha;
198
199 key = be_to_port_id(d_id).b24;
200
201 host = btree_lookup32(&vha->hw->tgt.host_map, key);
202 if (!host)
203 ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
204 "Unable to find host %06x\n", key);
205
206 return host;
207}
208
209static inline
210struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha,
211 uint16_t vp_idx)
212{
213 struct qla_hw_data *ha = vha->hw;
214
215 if (vha->vp_idx == vp_idx)
216 return vha;
217
218 BUG_ON(ha->tgt.tgt_vp_map == NULL);
219 if (likely(test_bit(vp_idx, ha->vp_idx_map)))
220 return ha->tgt.tgt_vp_map[vp_idx].vha;
221
222 return NULL;
223}
224
225static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha)
226{
227 unsigned long flags;
228
229 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
230
231 vha->hw->tgt.num_pend_cmds++;
232 if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds)
233 vha->qla_stats.stat_max_pend_cmds =
234 vha->hw->tgt.num_pend_cmds;
235 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
236}
237static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha)
238{
239 unsigned long flags;
240
241 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
242 vha->hw->tgt.num_pend_cmds--;
243 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
244}
245
246
247static void qlt_queue_unknown_atio(scsi_qla_host_t *vha,
248 struct atio_from_isp *atio, uint8_t ha_locked)
249{
250 struct qla_tgt_sess_op *u;
251 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
252 unsigned long flags;
253
254 if (tgt->tgt_stop) {
255 ql_dbg(ql_dbg_async, vha, 0x502c,
256 "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
257 vha->vp_idx);
258 goto out_term;
259 }
260
261 u = kzalloc(sizeof(*u), GFP_ATOMIC);
262 if (u == NULL)
263 goto out_term;
264
265 u->vha = vha;
266 memcpy(&u->atio, atio, sizeof(*atio));
267 INIT_LIST_HEAD(&u->cmd_list);
268
269 spin_lock_irqsave(&vha->cmd_list_lock, flags);
270 list_add_tail(&u->cmd_list, &vha->unknown_atio_list);
271 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
272
273 schedule_delayed_work(&vha->unknown_atio_work, 1);
274
275out:
276 return;
277
278out_term:
279 qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0);
280 goto out;
281}
282
283static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
284 uint8_t ha_locked)
285{
286 struct qla_tgt_sess_op *u, *t;
287 scsi_qla_host_t *host;
288 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
289 unsigned long flags;
290 uint8_t queued = 0;
291
292 list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) {
293 if (u->aborted) {
294 ql_dbg(ql_dbg_async, vha, 0x502e,
295 "Freeing unknown %s %p, because of Abort\n",
296 "ATIO_TYPE7", u);
297 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
298 &u->atio, ha_locked, 0);
299 goto abort;
300 }
301
302 host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
303 if (host != NULL) {
304 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f,
305 "Requeuing unknown ATIO_TYPE7 %p\n", u);
306 qlt_24xx_atio_pkt(host, &u->atio, ha_locked);
307 } else if (tgt->tgt_stop) {
308 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a,
309 "Freeing unknown %s %p, because tgt is being stopped\n",
310 "ATIO_TYPE7", u);
311 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
312 &u->atio, ha_locked, 0);
313 } else {
314 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
315 "Reschedule u %p, vha %p, host %p\n", u, vha, host);
316 if (!queued) {
317 queued = 1;
318 schedule_delayed_work(&vha->unknown_atio_work,
319 1);
320 }
321 continue;
322 }
323
324abort:
325 spin_lock_irqsave(&vha->cmd_list_lock, flags);
326 list_del(&u->cmd_list);
327 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
328 kfree(u);
329 }
330}
331
332void qlt_unknown_atio_work_fn(struct work_struct *work)
333{
334 struct scsi_qla_host *vha = container_of(to_delayed_work(work),
335 struct scsi_qla_host, unknown_atio_work);
336
337 qlt_try_to_dequeue_unknown_atios(vha, 0);
338}
339
340static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
341 struct atio_from_isp *atio, uint8_t ha_locked)
342{
343 ql_dbg(ql_dbg_tgt, vha, 0xe072,
344 "%s: qla_target(%d): type %x ox_id %04x\n",
345 __func__, vha->vp_idx, atio->u.raw.entry_type,
346 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
347
348 switch (atio->u.raw.entry_type) {
349 case ATIO_TYPE7:
350 {
351 struct scsi_qla_host *host = qlt_find_host_by_d_id(vha,
352 atio->u.isp24.fcp_hdr.d_id);
353 if (unlikely(NULL == host)) {
354 ql_dbg(ql_dbg_tgt, vha, 0xe03e,
355 "qla_target(%d): Received ATIO_TYPE7 "
356 "with unknown d_id %x:%x:%x\n", vha->vp_idx,
357 atio->u.isp24.fcp_hdr.d_id.domain,
358 atio->u.isp24.fcp_hdr.d_id.area,
359 atio->u.isp24.fcp_hdr.d_id.al_pa);
360
361
362 qlt_queue_unknown_atio(vha, atio, ha_locked);
363 break;
364 }
365 if (unlikely(!list_empty(&vha->unknown_atio_list)))
366 qlt_try_to_dequeue_unknown_atios(vha, ha_locked);
367
368 qlt_24xx_atio_pkt(host, atio, ha_locked);
369 break;
370 }
371
372 case IMMED_NOTIFY_TYPE:
373 {
374 struct scsi_qla_host *host = vha;
375 struct imm_ntfy_from_isp *entry =
376 (struct imm_ntfy_from_isp *)atio;
377
378 qlt_issue_marker(vha, ha_locked);
379
380 if ((entry->u.isp24.vp_index != 0xFF) &&
381 (entry->u.isp24.nport_handle != cpu_to_le16(0xFFFF))) {
382 host = qlt_find_host_by_vp_idx(vha,
383 entry->u.isp24.vp_index);
384 if (unlikely(!host)) {
385 ql_dbg(ql_dbg_tgt, vha, 0xe03f,
386 "qla_target(%d): Received "
387 "ATIO (IMMED_NOTIFY_TYPE) "
388 "with unknown vp_index %d\n",
389 vha->vp_idx, entry->u.isp24.vp_index);
390 break;
391 }
392 }
393 qlt_24xx_atio_pkt(host, atio, ha_locked);
394 break;
395 }
396
397 case VP_RPT_ID_IOCB_TYPE:
398 qla24xx_report_id_acquisition(vha,
399 (struct vp_rpt_id_entry_24xx *)atio);
400 break;
401
402 case ABTS_RECV_24XX:
403 {
404 struct abts_recv_from_24xx *entry =
405 (struct abts_recv_from_24xx *)atio;
406 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
407 entry->vp_index);
408 unsigned long flags;
409
410 if (unlikely(!host)) {
411 ql_dbg(ql_dbg_tgt, vha, 0xe00a,
412 "qla_target(%d): Response pkt (ABTS_RECV_24XX) "
413 "received, with unknown vp_index %d\n",
414 vha->vp_idx, entry->vp_index);
415 break;
416 }
417 if (!ha_locked)
418 spin_lock_irqsave(&host->hw->hardware_lock, flags);
419 qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio);
420 if (!ha_locked)
421 spin_unlock_irqrestore(&host->hw->hardware_lock, flags);
422 break;
423 }
424
425
426
427 default:
428 ql_dbg(ql_dbg_tgt, vha, 0xe040,
429 "qla_target(%d): Received unknown ATIO atio "
430 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
431 break;
432 }
433
434 return false;
435}
436
437void qlt_response_pkt_all_vps(struct scsi_qla_host *vha,
438 struct rsp_que *rsp, response_t *pkt)
439{
440 switch (pkt->entry_type) {
441 case CTIO_CRC2:
442 ql_dbg(ql_dbg_tgt, vha, 0xe073,
443 "qla_target(%d):%s: CRC2 Response pkt\n",
444 vha->vp_idx, __func__);
445 fallthrough;
446 case CTIO_TYPE7:
447 {
448 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
449 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
450 entry->vp_index);
451 if (unlikely(!host)) {
452 ql_dbg(ql_dbg_tgt, vha, 0xe041,
453 "qla_target(%d): Response pkt (CTIO_TYPE7) "
454 "received, with unknown vp_index %d\n",
455 vha->vp_idx, entry->vp_index);
456 break;
457 }
458 qlt_response_pkt(host, rsp, pkt);
459 break;
460 }
461
462 case IMMED_NOTIFY_TYPE:
463 {
464 struct scsi_qla_host *host;
465 struct imm_ntfy_from_isp *entry =
466 (struct imm_ntfy_from_isp *)pkt;
467
468 host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index);
469 if (unlikely(!host)) {
470 ql_dbg(ql_dbg_tgt, vha, 0xe042,
471 "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) "
472 "received, with unknown vp_index %d\n",
473 vha->vp_idx, entry->u.isp24.vp_index);
474 break;
475 }
476 qlt_response_pkt(host, rsp, pkt);
477 break;
478 }
479
480 case NOTIFY_ACK_TYPE:
481 {
482 struct scsi_qla_host *host = vha;
483 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
484
485 if (0xFF != entry->u.isp24.vp_index) {
486 host = qlt_find_host_by_vp_idx(vha,
487 entry->u.isp24.vp_index);
488 if (unlikely(!host)) {
489 ql_dbg(ql_dbg_tgt, vha, 0xe043,
490 "qla_target(%d): Response "
491 "pkt (NOTIFY_ACK_TYPE) "
492 "received, with unknown "
493 "vp_index %d\n", vha->vp_idx,
494 entry->u.isp24.vp_index);
495 break;
496 }
497 }
498 qlt_response_pkt(host, rsp, pkt);
499 break;
500 }
501
502 case ABTS_RECV_24XX:
503 {
504 struct abts_recv_from_24xx *entry =
505 (struct abts_recv_from_24xx *)pkt;
506 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
507 entry->vp_index);
508 if (unlikely(!host)) {
509 ql_dbg(ql_dbg_tgt, vha, 0xe044,
510 "qla_target(%d): Response pkt "
511 "(ABTS_RECV_24XX) received, with unknown "
512 "vp_index %d\n", vha->vp_idx, entry->vp_index);
513 break;
514 }
515 qlt_response_pkt(host, rsp, pkt);
516 break;
517 }
518
519 case ABTS_RESP_24XX:
520 {
521 struct abts_resp_to_24xx *entry =
522 (struct abts_resp_to_24xx *)pkt;
523 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
524 entry->vp_index);
525 if (unlikely(!host)) {
526 ql_dbg(ql_dbg_tgt, vha, 0xe045,
527 "qla_target(%d): Response pkt "
528 "(ABTS_RECV_24XX) received, with unknown "
529 "vp_index %d\n", vha->vp_idx, entry->vp_index);
530 break;
531 }
532 qlt_response_pkt(host, rsp, pkt);
533 break;
534 }
535 default:
536 qlt_response_pkt(vha, rsp, pkt);
537 break;
538 }
539
540}
541
542
543
544
545static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport,
546 struct imm_ntfy_from_isp *ntfy, int type)
547{
548 struct qla_work_evt *e;
549
550 e = qla2x00_alloc_work(vha, QLA_EVT_NACK);
551 if (!e)
552 return QLA_FUNCTION_FAILED;
553
554 e->u.nack.fcport = fcport;
555 e->u.nack.type = type;
556 memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp));
557 return qla2x00_post_work(vha, e);
558}
559
560static void qla2x00_async_nack_sp_done(srb_t *sp, int res)
561{
562 struct scsi_qla_host *vha = sp->vha;
563 unsigned long flags;
564
565 ql_dbg(ql_dbg_disc, vha, 0x20f2,
566 "Async done-%s res %x %8phC type %d\n",
567 sp->name, res, sp->fcport->port_name, sp->type);
568
569 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
570 sp->fcport->flags &= ~FCF_ASYNC_SENT;
571 sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
572
573 switch (sp->type) {
574 case SRB_NACK_PLOGI:
575 sp->fcport->login_gen++;
576 sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
577 sp->fcport->logout_on_delete = 1;
578 sp->fcport->plogi_nack_done_deadline = jiffies + HZ;
579 sp->fcport->send_els_logo = 0;
580 break;
581
582 case SRB_NACK_PRLI:
583 sp->fcport->fw_login_state = DSC_LS_PRLI_COMP;
584 sp->fcport->deleted = 0;
585 sp->fcport->send_els_logo = 0;
586
587 if (!sp->fcport->login_succ &&
588 !IS_SW_RESV_ADDR(sp->fcport->d_id)) {
589 sp->fcport->login_succ = 1;
590
591 vha->fcport_count++;
592 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
593 qla24xx_sched_upd_fcport(sp->fcport);
594 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
595 } else {
596 sp->fcport->login_retry = 0;
597 qla2x00_set_fcport_disc_state(sp->fcport,
598 DSC_LOGIN_COMPLETE);
599 sp->fcport->deleted = 0;
600 sp->fcport->logout_on_delete = 1;
601 }
602 break;
603
604 case SRB_NACK_LOGO:
605 sp->fcport->login_gen++;
606 sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
607 qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE);
608 break;
609 }
610 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
611
612 sp->free(sp);
613}
614
615int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport,
616 struct imm_ntfy_from_isp *ntfy, int type)
617{
618 int rval = QLA_FUNCTION_FAILED;
619 srb_t *sp;
620 char *c = NULL;
621
622 fcport->flags |= FCF_ASYNC_SENT;
623 switch (type) {
624 case SRB_NACK_PLOGI:
625 fcport->fw_login_state = DSC_LS_PLOGI_PEND;
626 c = "PLOGI";
627 break;
628 case SRB_NACK_PRLI:
629 fcport->fw_login_state = DSC_LS_PRLI_PEND;
630 fcport->deleted = 0;
631 c = "PRLI";
632 break;
633 case SRB_NACK_LOGO:
634 fcport->fw_login_state = DSC_LS_LOGO_PEND;
635 c = "LOGO";
636 break;
637 }
638
639 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
640 if (!sp)
641 goto done;
642
643 sp->type = type;
644 sp->name = "nack";
645
646 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
647 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
648
649 sp->u.iocb_cmd.u.nack.ntfy = ntfy;
650 sp->done = qla2x00_async_nack_sp_done;
651
652 ql_dbg(ql_dbg_disc, vha, 0x20f4,
653 "Async-%s %8phC hndl %x %s\n",
654 sp->name, fcport->port_name, sp->handle, c);
655
656 rval = qla2x00_start_sp(sp);
657 if (rval != QLA_SUCCESS)
658 goto done_free_sp;
659
660 return rval;
661
662done_free_sp:
663 sp->free(sp);
664done:
665 fcport->flags &= ~FCF_ASYNC_SENT;
666 return rval;
667}
668
669void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
670{
671 fc_port_t *t;
672
673 switch (e->u.nack.type) {
674 case SRB_NACK_PRLI:
675 t = e->u.nack.fcport;
676 flush_work(&t->del_work);
677 flush_work(&t->free_work);
678 mutex_lock(&vha->vha_tgt.tgt_mutex);
679 t = qlt_create_sess(vha, e->u.nack.fcport, 0);
680 mutex_unlock(&vha->vha_tgt.tgt_mutex);
681 if (t) {
682 ql_log(ql_log_info, vha, 0xd034,
683 "%s create sess success %p", __func__, t);
684
685 vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport);
686 }
687 break;
688 }
689 qla24xx_async_notify_ack(vha, e->u.nack.fcport,
690 (struct imm_ntfy_from_isp *)e->u.nack.iocb, e->u.nack.type);
691}
692
693void qla24xx_delete_sess_fn(struct work_struct *work)
694{
695 fc_port_t *fcport = container_of(work, struct fc_port, del_work);
696 struct qla_hw_data *ha = fcport->vha->hw;
697
698 if (fcport->se_sess) {
699 ha->tgt.tgt_ops->shutdown_sess(fcport);
700 ha->tgt.tgt_ops->put_sess(fcport);
701 } else {
702 qlt_unreg_sess(fcport);
703 }
704}
705
706
707
708
709void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
710{
711 struct qla_hw_data *ha = vha->hw;
712 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
713 struct fc_port *sess = fcport;
714 unsigned long flags;
715
716 if (!vha->hw->tgt.tgt_ops)
717 return;
718
719 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
720 if (tgt->tgt_stop) {
721 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
722 return;
723 }
724
725 if (fcport->disc_state == DSC_DELETE_PEND) {
726 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
727 return;
728 }
729
730 if (!sess->se_sess) {
731 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
732
733 mutex_lock(&vha->vha_tgt.tgt_mutex);
734 sess = qlt_create_sess(vha, fcport, false);
735 mutex_unlock(&vha->vha_tgt.tgt_mutex);
736
737 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
738 } else {
739 if (fcport->fw_login_state == DSC_LS_PRLI_COMP) {
740 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
741 return;
742 }
743
744 if (!kref_get_unless_zero(&sess->sess_kref)) {
745 ql_dbg(ql_dbg_disc, vha, 0x2107,
746 "%s: kref_get fail sess %8phC \n",
747 __func__, sess->port_name);
748 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
749 return;
750 }
751
752 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c,
753 "qla_target(%u): %ssession for port %8phC "
754 "(loop ID %d) reappeared\n", vha->vp_idx,
755 sess->local ? "local " : "", sess->port_name, sess->loop_id);
756
757 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007,
758 "Reappeared sess %p\n", sess);
759
760 ha->tgt.tgt_ops->update_sess(sess, fcport->d_id,
761 fcport->loop_id,
762 (fcport->flags & FCF_CONF_COMP_SUPPORTED));
763 }
764
765 if (sess && sess->local) {
766 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d,
767 "qla_target(%u): local session for "
768 "port %8phC (loop ID %d) became global\n", vha->vp_idx,
769 fcport->port_name, sess->loop_id);
770 sess->local = 0;
771 }
772 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
773
774 ha->tgt.tgt_ops->put_sess(sess);
775}
776
777
778
779
780
781
782static struct qlt_plogi_ack_t *
783qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
784 struct imm_ntfy_from_isp *iocb)
785{
786 struct qlt_plogi_ack_t *pla;
787
788 lockdep_assert_held(&vha->hw->hardware_lock);
789
790 list_for_each_entry(pla, &vha->plogi_ack_list, list) {
791 if (pla->id.b24 == id->b24) {
792 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x210d,
793 "%s %d %8phC Term INOT due to new INOT",
794 __func__, __LINE__,
795 pla->iocb.u.isp24.port_name);
796 qlt_send_term_imm_notif(vha, &pla->iocb, 1);
797 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
798 return pla;
799 }
800 }
801
802 pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC);
803 if (!pla) {
804 ql_dbg(ql_dbg_async, vha, 0x5088,
805 "qla_target(%d): Allocation of plogi_ack failed\n",
806 vha->vp_idx);
807 return NULL;
808 }
809
810 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
811 pla->id = *id;
812 list_add_tail(&pla->list, &vha->plogi_ack_list);
813
814 return pla;
815}
816
817void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
818 struct qlt_plogi_ack_t *pla)
819{
820 struct imm_ntfy_from_isp *iocb = &pla->iocb;
821 port_id_t port_id;
822 uint16_t loop_id;
823 fc_port_t *fcport = pla->fcport;
824
825 BUG_ON(!pla->ref_count);
826 pla->ref_count--;
827
828 if (pla->ref_count)
829 return;
830
831 ql_dbg(ql_dbg_disc, vha, 0x5089,
832 "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x"
833 " exch %#x ox_id %#x\n", iocb->u.isp24.port_name,
834 iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1],
835 iocb->u.isp24.port_id[0],
836 le16_to_cpu(iocb->u.isp24.nport_handle),
837 iocb->u.isp24.exchange_address, iocb->ox_id);
838
839 port_id.b.domain = iocb->u.isp24.port_id[2];
840 port_id.b.area = iocb->u.isp24.port_id[1];
841 port_id.b.al_pa = iocb->u.isp24.port_id[0];
842 port_id.b.rsvd_1 = 0;
843
844 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
845
846 fcport->loop_id = loop_id;
847 fcport->d_id = port_id;
848 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
849 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI);
850 else
851 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI);
852
853 list_for_each_entry(fcport, &vha->vp_fcports, list) {
854 if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla)
855 fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
856 if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla)
857 fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
858 }
859
860 list_del(&pla->list);
861 kmem_cache_free(qla_tgt_plogi_cachep, pla);
862}
863
864void
865qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla,
866 struct fc_port *sess, enum qlt_plogi_link_t link)
867{
868 struct imm_ntfy_from_isp *iocb = &pla->iocb;
869
870 pla->ref_count++;
871
872 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097,
873 "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC"
874 " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n",
875 sess, link, sess->port_name,
876 iocb->u.isp24.port_name, iocb->u.isp24.port_id[2],
877 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
878 pla->ref_count, pla, link);
879
880 if (link == QLT_PLOGI_LINK_CONFLICT) {
881 switch (sess->disc_state) {
882 case DSC_DELETED:
883 case DSC_DELETE_PEND:
884 pla->ref_count--;
885 return;
886 default:
887 break;
888 }
889 }
890
891 if (sess->plogi_link[link])
892 qlt_plogi_ack_unref(vha, sess->plogi_link[link]);
893
894 if (link == QLT_PLOGI_LINK_SAME_WWN)
895 pla->fcport = sess;
896
897 sess->plogi_link[link] = pla;
898}
899
900typedef struct {
901
902 port_id_t id;
903
904
905
906
907
908 int cmd_count;
909
910
911 struct list_head list;
912} qlt_port_logo_t;
913
914static void
915qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
916{
917 qlt_port_logo_t *tmp;
918 int res;
919
920 mutex_lock(&vha->vha_tgt.tgt_mutex);
921
922 list_for_each_entry(tmp, &vha->logo_list, list) {
923 if (tmp->id.b24 == logo->id.b24) {
924 tmp->cmd_count += logo->cmd_count;
925 mutex_unlock(&vha->vha_tgt.tgt_mutex);
926 return;
927 }
928 }
929
930 list_add_tail(&logo->list, &vha->logo_list);
931
932 mutex_unlock(&vha->vha_tgt.tgt_mutex);
933
934 res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id);
935
936 mutex_lock(&vha->vha_tgt.tgt_mutex);
937 list_del(&logo->list);
938 mutex_unlock(&vha->vha_tgt.tgt_mutex);
939
940 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098,
941 "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n",
942 logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa,
943 logo->cmd_count, res);
944}
945
946void qlt_free_session_done(struct work_struct *work)
947{
948 struct fc_port *sess = container_of(work, struct fc_port,
949 free_work);
950 struct qla_tgt *tgt = sess->tgt;
951 struct scsi_qla_host *vha = sess->vha;
952 struct qla_hw_data *ha = vha->hw;
953 unsigned long flags;
954 bool logout_started = false;
955 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
956 struct qlt_plogi_ack_t *own =
957 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
958
959 ql_dbg(ql_dbg_disc, vha, 0xf084,
960 "%s: se_sess %p / sess %p from port %8phC loop_id %#04x"
961 " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n",
962 __func__, sess->se_sess, sess, sess->port_name, sess->loop_id,
963 sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa,
964 sess->logout_on_delete, sess->keep_nport_handle,
965 sess->send_els_logo);
966
967 if (!IS_SW_RESV_ADDR(sess->d_id)) {
968 qla2x00_mark_device_lost(vha, sess, 0);
969
970 if (sess->send_els_logo) {
971 qlt_port_logo_t logo;
972
973 logo.id = sess->d_id;
974 logo.cmd_count = 0;
975 if (!own)
976 qlt_send_first_logo(vha, &logo);
977 sess->send_els_logo = 0;
978 }
979
980 if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
981 int rc;
982
983 if (!own ||
984 (own->iocb.u.isp24.status_subcode == ELS_PLOGI)) {
985 rc = qla2x00_post_async_logout_work(vha, sess,
986 NULL);
987 if (rc != QLA_SUCCESS)
988 ql_log(ql_log_warn, vha, 0xf085,
989 "Schedule logo failed sess %p rc %d\n",
990 sess, rc);
991 else
992 logout_started = true;
993 } else if (own && (own->iocb.u.isp24.status_subcode ==
994 ELS_PRLI) && ha->flags.rida_fmt2) {
995 rc = qla2x00_post_async_prlo_work(vha, sess,
996 NULL);
997 if (rc != QLA_SUCCESS)
998 ql_log(ql_log_warn, vha, 0xf085,
999 "Schedule PRLO failed sess %p rc %d\n",
1000 sess, rc);
1001 else
1002 logout_started = true;
1003 }
1004 }
1005
1006 if (sess->nvme_flag & NVME_FLAG_REGISTERED &&
1007 !(sess->nvme_flag & NVME_FLAG_DELETING)) {
1008 sess->nvme_flag |= NVME_FLAG_DELETING;
1009 qla_nvme_unregister_remote_port(sess);
1010 }
1011 }
1012
1013
1014
1015
1016 if (sess->se_sess != NULL)
1017 ha->tgt.tgt_ops->free_session(sess);
1018
1019 if (logout_started) {
1020 bool traced = false;
1021 u16 cnt = 0;
1022
1023 while (!READ_ONCE(sess->logout_completed)) {
1024 if (!traced) {
1025 ql_dbg(ql_dbg_disc, vha, 0xf086,
1026 "%s: waiting for sess %p logout\n",
1027 __func__, sess);
1028 traced = true;
1029 }
1030 msleep(100);
1031 cnt++;
1032
1033
1034
1035
1036
1037 if (cnt > 230)
1038 break;
1039 }
1040
1041 ql_dbg(ql_dbg_disc, vha, 0xf087,
1042 "%s: sess %p logout completed\n", __func__, sess);
1043 }
1044
1045 if (sess->logo_ack_needed) {
1046 sess->logo_ack_needed = 0;
1047 qla24xx_async_notify_ack(vha, sess,
1048 (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO);
1049 }
1050
1051 spin_lock_irqsave(&vha->work_lock, flags);
1052 sess->flags &= ~FCF_ASYNC_SENT;
1053 spin_unlock_irqrestore(&vha->work_lock, flags);
1054
1055 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1056 if (sess->se_sess) {
1057 sess->se_sess = NULL;
1058 if (tgt && !IS_SW_RESV_ADDR(sess->d_id))
1059 tgt->sess_count--;
1060 }
1061
1062 qla2x00_set_fcport_disc_state(sess, DSC_DELETED);
1063 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1064 sess->deleted = QLA_SESS_DELETED;
1065
1066 if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) {
1067 vha->fcport_count--;
1068 sess->login_succ = 0;
1069 }
1070
1071 qla2x00_clear_loop_id(sess);
1072
1073 if (sess->conflict) {
1074 sess->conflict->login_pause = 0;
1075 sess->conflict = NULL;
1076 if (!test_bit(UNLOADING, &vha->dpc_flags))
1077 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1078 }
1079
1080 {
1081 struct qlt_plogi_ack_t *con =
1082 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
1083 struct imm_ntfy_from_isp *iocb;
1084
1085 own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
1086
1087 if (con) {
1088 iocb = &con->iocb;
1089 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099,
1090 "se_sess %p / sess %p port %8phC is gone,"
1091 " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
1092 sess->se_sess, sess, sess->port_name,
1093 own ? "releasing own PLOGI" : "no own PLOGI pending",
1094 own ? own->ref_count : -1,
1095 iocb->u.isp24.port_name, con->ref_count);
1096 qlt_plogi_ack_unref(vha, con);
1097 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
1098 } else {
1099 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a,
1100 "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n",
1101 sess->se_sess, sess, sess->port_name,
1102 own ? "releasing own PLOGI" :
1103 "no own PLOGI pending",
1104 own ? own->ref_count : -1);
1105 }
1106
1107 if (own) {
1108 sess->fw_login_state = DSC_LS_PLOGI_PEND;
1109 qlt_plogi_ack_unref(vha, own);
1110 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
1111 }
1112 }
1113
1114 sess->explicit_logout = 0;
1115 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1116 sess->free_pending = 0;
1117
1118 qla2x00_dfs_remove_rport(vha, sess);
1119
1120 ql_dbg(ql_dbg_disc, vha, 0xf001,
1121 "Unregistration of sess %p %8phC finished fcp_cnt %d\n",
1122 sess, sess->port_name, vha->fcport_count);
1123
1124 if (tgt && (tgt->sess_count == 0))
1125 wake_up_all(&tgt->waitQ);
1126
1127 if (!test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags) &&
1128 !(vha->vp_idx && test_bit(VPORT_DELETE, &vha->dpc_flags)) &&
1129 (!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) {
1130 switch (vha->host->active_mode) {
1131 case MODE_INITIATOR:
1132 case MODE_DUAL:
1133 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1134 qla2xxx_wake_dpc(vha);
1135 break;
1136 case MODE_TARGET:
1137 default:
1138
1139 break;
1140 }
1141 }
1142
1143 if (vha->fcport_count == 0)
1144 wake_up_all(&vha->fcport_waitQ);
1145}
1146
1147
1148void qlt_unreg_sess(struct fc_port *sess)
1149{
1150 struct scsi_qla_host *vha = sess->vha;
1151 unsigned long flags;
1152
1153 ql_dbg(ql_dbg_disc, sess->vha, 0x210a,
1154 "%s sess %p for deletion %8phC\n",
1155 __func__, sess, sess->port_name);
1156
1157 spin_lock_irqsave(&sess->vha->work_lock, flags);
1158 if (sess->free_pending) {
1159 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1160 return;
1161 }
1162 sess->free_pending = 1;
1163
1164
1165
1166
1167 sess->flags |= FCF_ASYNC_SENT;
1168 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1169
1170 if (sess->se_sess)
1171 vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
1172
1173 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1174 qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
1175 sess->last_rscn_gen = sess->rscn_gen;
1176 sess->last_login_gen = sess->login_gen;
1177
1178 queue_work(sess->vha->hw->wq, &sess->free_work);
1179}
1180EXPORT_SYMBOL(qlt_unreg_sess);
1181
1182static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
1183{
1184 struct qla_hw_data *ha = vha->hw;
1185 struct fc_port *sess = NULL;
1186 uint16_t loop_id;
1187 int res = 0;
1188 struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
1189 unsigned long flags;
1190
1191 loop_id = le16_to_cpu(n->u.isp24.nport_handle);
1192 if (loop_id == 0xFFFF) {
1193
1194 atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
1195 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1196 qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
1197 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1198 } else {
1199 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1200 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
1201 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1202 }
1203
1204 ql_dbg(ql_dbg_tgt, vha, 0xe000,
1205 "Using sess for qla_tgt_reset: %p\n", sess);
1206 if (!sess) {
1207 res = -ESRCH;
1208 return res;
1209 }
1210
1211 ql_dbg(ql_dbg_tgt, vha, 0xe047,
1212 "scsi(%ld): resetting (session %p from port %8phC mcmd %x, "
1213 "loop_id %d)\n", vha->host_no, sess, sess->port_name,
1214 mcmd, loop_id);
1215
1216 return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK);
1217}
1218
1219static void qla24xx_chk_fcp_state(struct fc_port *sess)
1220{
1221 if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) {
1222 sess->logout_on_delete = 0;
1223 sess->logo_ack_needed = 0;
1224 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1225 }
1226}
1227
1228void qlt_schedule_sess_for_deletion(struct fc_port *sess)
1229{
1230 struct qla_tgt *tgt = sess->tgt;
1231 unsigned long flags;
1232 u16 sec;
1233
1234 switch (sess->disc_state) {
1235 case DSC_DELETE_PEND:
1236 return;
1237 case DSC_DELETED:
1238 if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
1239 !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) {
1240 if (tgt && tgt->tgt_stop && tgt->sess_count == 0)
1241 wake_up_all(&tgt->waitQ);
1242
1243 if (sess->vha->fcport_count == 0)
1244 wake_up_all(&sess->vha->fcport_waitQ);
1245 return;
1246 }
1247 break;
1248 case DSC_UPD_FCPORT:
1249
1250
1251
1252
1253 sess->next_disc_state = DSC_DELETE_PEND;
1254 sec = jiffies_to_msecs(jiffies -
1255 sess->jiffies_at_registration)/1000;
1256 if (sess->sec_since_registration < sec && sec && !(sec % 5)) {
1257 sess->sec_since_registration = sec;
1258 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
1259 "%s %8phC : Slow Rport registration(%d Sec)\n",
1260 __func__, sess->port_name, sec);
1261 }
1262 return;
1263 default:
1264 break;
1265 }
1266
1267 spin_lock_irqsave(&sess->vha->work_lock, flags);
1268 if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
1269 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1270 return;
1271 }
1272 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1273 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1274
1275 sess->prli_pend_timer = 0;
1276 qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
1277
1278 qla24xx_chk_fcp_state(sess);
1279
1280 ql_dbg(ql_log_warn, sess->vha, 0xe001,
1281 "Scheduling sess %p for deletion %8phC\n",
1282 sess, sess->port_name);
1283
1284 WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work));
1285}
1286
1287static void qlt_clear_tgt_db(struct qla_tgt *tgt)
1288{
1289 struct fc_port *sess;
1290 scsi_qla_host_t *vha = tgt->vha;
1291
1292 list_for_each_entry(sess, &vha->vp_fcports, list) {
1293 if (sess->se_sess)
1294 qlt_schedule_sess_for_deletion(sess);
1295 }
1296
1297
1298}
1299
1300static int qla24xx_get_loop_id(struct scsi_qla_host *vha, be_id_t s_id,
1301 uint16_t *loop_id)
1302{
1303 struct qla_hw_data *ha = vha->hw;
1304 dma_addr_t gid_list_dma;
1305 struct gid_list_info *gid_list, *gid;
1306 int res, rc, i;
1307 uint16_t entries;
1308
1309 gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1310 &gid_list_dma, GFP_KERNEL);
1311 if (!gid_list) {
1312 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044,
1313 "qla_target(%d): DMA Alloc failed of %u\n",
1314 vha->vp_idx, qla2x00_gid_list_size(ha));
1315 return -ENOMEM;
1316 }
1317
1318
1319 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries);
1320 if (rc != QLA_SUCCESS) {
1321 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045,
1322 "qla_target(%d): get_id_list() failed: %x\n",
1323 vha->vp_idx, rc);
1324 res = -EBUSY;
1325 goto out_free_id_list;
1326 }
1327
1328 gid = gid_list;
1329 res = -ENOENT;
1330 for (i = 0; i < entries; i++) {
1331 if (gid->al_pa == s_id.al_pa &&
1332 gid->area == s_id.area &&
1333 gid->domain == s_id.domain) {
1334 *loop_id = le16_to_cpu(gid->loop_id);
1335 res = 0;
1336 break;
1337 }
1338 gid = (void *)gid + ha->gid_list_info_size;
1339 }
1340
1341out_free_id_list:
1342 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1343 gid_list, gid_list_dma);
1344 return res;
1345}
1346
1347
1348
1349
1350
1351static struct fc_port *qlt_create_sess(
1352 struct scsi_qla_host *vha,
1353 fc_port_t *fcport,
1354 bool local)
1355{
1356 struct qla_hw_data *ha = vha->hw;
1357 struct fc_port *sess = fcport;
1358 unsigned long flags;
1359
1360 if (vha->vha_tgt.qla_tgt->tgt_stop)
1361 return NULL;
1362
1363 if (fcport->se_sess) {
1364 if (!kref_get_unless_zero(&sess->sess_kref)) {
1365 ql_dbg(ql_dbg_disc, vha, 0x20f6,
1366 "%s: kref_get_unless_zero failed for %8phC\n",
1367 __func__, sess->port_name);
1368 return NULL;
1369 }
1370 return fcport;
1371 }
1372 sess->tgt = vha->vha_tgt.qla_tgt;
1373 sess->local = local;
1374
1375
1376
1377
1378
1379
1380
1381 sess->logout_on_delete = 1;
1382 sess->keep_nport_handle = 0;
1383 sess->logout_completed = 0;
1384
1385 if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
1386 &fcport->port_name[0], sess) < 0) {
1387 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015,
1388 "(%d) %8phC check_initiator_node_acl failed\n",
1389 vha->vp_idx, fcport->port_name);
1390 return NULL;
1391 } else {
1392 kref_init(&fcport->sess_kref);
1393
1394
1395
1396
1397 if (!kref_get_unless_zero(&sess->sess_kref)) {
1398 ql_dbg(ql_dbg_disc, vha, 0x20f7,
1399 "%s: kref_get_unless_zero failed for %8phC\n",
1400 __func__, sess->port_name);
1401 return NULL;
1402 }
1403
1404 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1405 if (!IS_SW_RESV_ADDR(sess->d_id))
1406 vha->vha_tgt.qla_tgt->sess_count++;
1407
1408 qlt_do_generation_tick(vha, &sess->generation);
1409 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1410 }
1411
1412 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006,
1413 "Adding sess %p se_sess %p to tgt %p sess_count %d\n",
1414 sess, sess->se_sess, vha->vha_tgt.qla_tgt,
1415 vha->vha_tgt.qla_tgt->sess_count);
1416
1417 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b,
1418 "qla_target(%d): %ssession for wwn %8phC (loop_id %d, "
1419 "s_id %x:%x:%x, confirmed completion %ssupported) added\n",
1420 vha->vp_idx, local ? "local " : "", fcport->port_name,
1421 fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area,
1422 sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not ");
1423
1424 return sess;
1425}
1426
1427
1428
1429
1430
1431void
1432qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
1433{
1434 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1435 struct fc_port *sess = fcport;
1436 unsigned long flags;
1437
1438 if (!vha->hw->tgt.tgt_ops)
1439 return;
1440
1441 if (!tgt)
1442 return;
1443
1444 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1445 if (tgt->tgt_stop) {
1446 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1447 return;
1448 }
1449 if (!sess->se_sess) {
1450 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1451 return;
1452 }
1453
1454 if (max_gen - sess->generation < 0) {
1455 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1456 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092,
1457 "Ignoring stale deletion request for se_sess %p / sess %p"
1458 " for port %8phC, req_gen %d, sess_gen %d\n",
1459 sess->se_sess, sess, sess->port_name, max_gen,
1460 sess->generation);
1461 return;
1462 }
1463
1464 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
1465
1466 sess->local = 1;
1467 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1468 qlt_schedule_sess_for_deletion(sess);
1469}
1470
1471static inline int test_tgt_sess_count(struct qla_tgt *tgt)
1472{
1473 struct qla_hw_data *ha = tgt->ha;
1474 unsigned long flags;
1475 int res;
1476
1477
1478
1479
1480 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1481 ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
1482 "tgt %p, sess_count=%d\n",
1483 tgt, tgt->sess_count);
1484 res = (tgt->sess_count == 0);
1485 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1486
1487 return res;
1488}
1489
1490
1491int qlt_stop_phase1(struct qla_tgt *tgt)
1492{
1493 struct scsi_qla_host *vha = tgt->vha;
1494 struct qla_hw_data *ha = tgt->ha;
1495 unsigned long flags;
1496
1497 mutex_lock(&ha->optrom_mutex);
1498 mutex_lock(&qla_tgt_mutex);
1499
1500 if (tgt->tgt_stop || tgt->tgt_stopped) {
1501 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e,
1502 "Already in tgt->tgt_stop or tgt_stopped state\n");
1503 mutex_unlock(&qla_tgt_mutex);
1504 mutex_unlock(&ha->optrom_mutex);
1505 return -EPERM;
1506 }
1507
1508 ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n",
1509 vha->host_no, vha);
1510
1511
1512
1513
1514 mutex_lock(&vha->vha_tgt.tgt_mutex);
1515 tgt->tgt_stop = 1;
1516 qlt_clear_tgt_db(tgt);
1517 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1518 mutex_unlock(&qla_tgt_mutex);
1519
1520 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
1521 "Waiting for sess works (tgt %p)", tgt);
1522 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1523 while (!list_empty(&tgt->sess_works_list)) {
1524 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1525 flush_scheduled_work();
1526 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1527 }
1528 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1529
1530 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
1531 "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count);
1532
1533 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1534
1535
1536 if (!ha->flags.host_shutting_down &&
1537 (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)))
1538 qlt_disable_vha(vha);
1539
1540
1541 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1542 mutex_unlock(&ha->optrom_mutex);
1543
1544 return 0;
1545}
1546EXPORT_SYMBOL(qlt_stop_phase1);
1547
1548
1549void qlt_stop_phase2(struct qla_tgt *tgt)
1550{
1551 scsi_qla_host_t *vha = tgt->vha;
1552
1553 if (tgt->tgt_stopped) {
1554 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f,
1555 "Already in tgt->tgt_stopped state\n");
1556 dump_stack();
1557 return;
1558 }
1559 if (!tgt->tgt_stop) {
1560 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b,
1561 "%s: phase1 stop is not completed\n", __func__);
1562 dump_stack();
1563 return;
1564 }
1565
1566 mutex_lock(&tgt->ha->optrom_mutex);
1567 mutex_lock(&vha->vha_tgt.tgt_mutex);
1568 tgt->tgt_stop = 0;
1569 tgt->tgt_stopped = 1;
1570 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1571 mutex_unlock(&tgt->ha->optrom_mutex);
1572
1573 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n",
1574 tgt);
1575
1576 switch (vha->qlini_mode) {
1577 case QLA2XXX_INI_MODE_EXCLUSIVE:
1578 vha->flags.online = 1;
1579 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1580 break;
1581 default:
1582 break;
1583 }
1584}
1585EXPORT_SYMBOL(qlt_stop_phase2);
1586
1587
1588static void qlt_release(struct qla_tgt *tgt)
1589{
1590 scsi_qla_host_t *vha = tgt->vha;
1591 void *node;
1592 u64 key = 0;
1593 u16 i;
1594 struct qla_qpair_hint *h;
1595 struct qla_hw_data *ha = vha->hw;
1596
1597 if (!tgt->tgt_stop && !tgt->tgt_stopped)
1598 qlt_stop_phase1(tgt);
1599
1600 if (!tgt->tgt_stopped)
1601 qlt_stop_phase2(tgt);
1602
1603 for (i = 0; i < vha->hw->max_qpairs + 1; i++) {
1604 unsigned long flags;
1605
1606 h = &tgt->qphints[i];
1607 if (h->qpair) {
1608 spin_lock_irqsave(h->qpair->qp_lock_ptr, flags);
1609 list_del(&h->hint_elem);
1610 spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags);
1611 h->qpair = NULL;
1612 }
1613 }
1614 kfree(tgt->qphints);
1615 mutex_lock(&qla_tgt_mutex);
1616 list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
1617 mutex_unlock(&qla_tgt_mutex);
1618
1619 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
1620 btree_remove64(&tgt->lun_qpair_map, key);
1621
1622 btree_destroy64(&tgt->lun_qpair_map);
1623
1624 if (vha->vp_idx)
1625 if (ha->tgt.tgt_ops &&
1626 ha->tgt.tgt_ops->remove_target &&
1627 vha->vha_tgt.target_lport_ptr)
1628 ha->tgt.tgt_ops->remove_target(vha);
1629
1630 vha->vha_tgt.qla_tgt = NULL;
1631
1632 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
1633 "Release of tgt %p finished\n", tgt);
1634
1635 kfree(tgt);
1636}
1637
1638
1639static int qlt_sched_sess_work(struct qla_tgt *tgt, int type,
1640 const void *param, unsigned int param_size)
1641{
1642 struct qla_tgt_sess_work_param *prm;
1643 unsigned long flags;
1644
1645 prm = kzalloc(sizeof(*prm), GFP_ATOMIC);
1646 if (!prm) {
1647 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050,
1648 "qla_target(%d): Unable to create session "
1649 "work, command will be refused", 0);
1650 return -ENOMEM;
1651 }
1652
1653 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e,
1654 "Scheduling work (type %d, prm %p)"
1655 " to find session for param %p (size %d, tgt %p)\n",
1656 type, prm, param, param_size, tgt);
1657
1658 prm->type = type;
1659 memcpy(&prm->tm_iocb, param, param_size);
1660
1661 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1662 list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list);
1663 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1664
1665 schedule_work(&tgt->sess_work);
1666
1667 return 0;
1668}
1669
1670
1671
1672
1673static void qlt_send_notify_ack(struct qla_qpair *qpair,
1674 struct imm_ntfy_from_isp *ntfy,
1675 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
1676 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan)
1677{
1678 struct scsi_qla_host *vha = qpair->vha;
1679 struct qla_hw_data *ha = vha->hw;
1680 request_t *pkt;
1681 struct nack_to_isp *nack;
1682
1683 if (!ha->flags.fw_started)
1684 return;
1685
1686 ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha);
1687
1688 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
1689 if (!pkt) {
1690 ql_dbg(ql_dbg_tgt, vha, 0xe049,
1691 "qla_target(%d): %s failed: unable to allocate "
1692 "request packet\n", vha->vp_idx, __func__);
1693 return;
1694 }
1695
1696 if (vha->vha_tgt.qla_tgt != NULL)
1697 vha->vha_tgt.qla_tgt->notify_ack_expected++;
1698
1699 pkt->entry_type = NOTIFY_ACK_TYPE;
1700 pkt->entry_count = 1;
1701
1702 nack = (struct nack_to_isp *)pkt;
1703 nack->ox_id = ntfy->ox_id;
1704
1705 nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE;
1706 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
1707 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
1708 nack->u.isp24.flags = ntfy->u.isp24.flags &
1709 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
1710 }
1711 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
1712 nack->u.isp24.status = ntfy->u.isp24.status;
1713 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
1714 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
1715 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
1716 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
1717 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
1718 nack->u.isp24.srr_flags = cpu_to_le16(srr_flags);
1719 nack->u.isp24.srr_reject_code = srr_reject_code;
1720 nack->u.isp24.srr_reject_code_expl = srr_explan;
1721 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
1722
1723 ql_dbg(ql_dbg_tgt, vha, 0xe005,
1724 "qla_target(%d): Sending 24xx Notify Ack %d\n",
1725 vha->vp_idx, nack->u.isp24.status);
1726
1727
1728 wmb();
1729 qla2x00_start_iocbs(vha, qpair->req);
1730}
1731
1732static int qlt_build_abts_resp_iocb(struct qla_tgt_mgmt_cmd *mcmd)
1733{
1734 struct scsi_qla_host *vha = mcmd->vha;
1735 struct qla_hw_data *ha = vha->hw;
1736 struct abts_resp_to_24xx *resp;
1737 __le32 f_ctl;
1738 uint32_t h;
1739 uint8_t *p;
1740 int rc;
1741 struct abts_recv_from_24xx *abts = &mcmd->orig_iocb.abts;
1742 struct qla_qpair *qpair = mcmd->qpair;
1743
1744 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1745 "Sending task mgmt ABTS response (ha=%p, status=%x)\n",
1746 ha, mcmd->fc_tm_rsp);
1747
1748 rc = qlt_check_reserve_free_req(qpair, 1);
1749 if (rc) {
1750 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1751 "qla_target(%d): %s failed: unable to allocate request packet\n",
1752 vha->vp_idx, __func__);
1753 return -EAGAIN;
1754 }
1755
1756 resp = (struct abts_resp_to_24xx *)qpair->req->ring_ptr;
1757 memset(resp, 0, sizeof(*resp));
1758
1759 h = qlt_make_handle(qpair);
1760 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
1761
1762
1763
1764
1765
1766 return -EAGAIN;
1767 } else {
1768 qpair->req->outstanding_cmds[h] = (srb_t *)mcmd;
1769 }
1770
1771 resp->handle = make_handle(qpair->req->id, h);
1772 resp->entry_type = ABTS_RESP_24XX;
1773 resp->entry_count = 1;
1774 resp->nport_handle = abts->nport_handle;
1775 resp->vp_index = vha->vp_idx;
1776 resp->sof_type = abts->sof_type;
1777 resp->exchange_address = abts->exchange_address;
1778 resp->fcp_hdr_le = abts->fcp_hdr_le;
1779 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1780 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1781 F_CTL_SEQ_INITIATIVE);
1782 p = (uint8_t *)&f_ctl;
1783 resp->fcp_hdr_le.f_ctl[0] = *p++;
1784 resp->fcp_hdr_le.f_ctl[1] = *p++;
1785 resp->fcp_hdr_le.f_ctl[2] = *p;
1786
1787 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
1788 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
1789
1790 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1791 if (mcmd->fc_tm_rsp == FCP_TMF_CMPL) {
1792 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1793 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1794 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1795 resp->payload.ba_acct.high_seq_cnt = cpu_to_le16(0xFFFF);
1796 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1797 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1798 } else {
1799 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1800 resp->payload.ba_rjt.reason_code =
1801 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1802
1803 }
1804
1805 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1806
1807
1808 wmb();
1809 if (qpair->reqq_start_iocbs)
1810 qpair->reqq_start_iocbs(qpair);
1811 else
1812 qla2x00_start_iocbs(vha, qpair->req);
1813
1814 return rc;
1815}
1816
1817
1818
1819
1820static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair,
1821 struct abts_recv_from_24xx *abts, uint32_t status,
1822 bool ids_reversed)
1823{
1824 struct scsi_qla_host *vha = qpair->vha;
1825 struct qla_hw_data *ha = vha->hw;
1826 struct abts_resp_to_24xx *resp;
1827 __le32 f_ctl;
1828 uint8_t *p;
1829
1830 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1831 "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
1832 ha, abts, status);
1833
1834 resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair,
1835 NULL);
1836 if (!resp) {
1837 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1838 "qla_target(%d): %s failed: unable to allocate "
1839 "request packet", vha->vp_idx, __func__);
1840 return;
1841 }
1842
1843 resp->entry_type = ABTS_RESP_24XX;
1844 resp->handle = QLA_TGT_SKIP_HANDLE;
1845 resp->entry_count = 1;
1846 resp->nport_handle = abts->nport_handle;
1847 resp->vp_index = vha->vp_idx;
1848 resp->sof_type = abts->sof_type;
1849 resp->exchange_address = abts->exchange_address;
1850 resp->fcp_hdr_le = abts->fcp_hdr_le;
1851 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1852 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1853 F_CTL_SEQ_INITIATIVE);
1854 p = (uint8_t *)&f_ctl;
1855 resp->fcp_hdr_le.f_ctl[0] = *p++;
1856 resp->fcp_hdr_le.f_ctl[1] = *p++;
1857 resp->fcp_hdr_le.f_ctl[2] = *p;
1858 if (ids_reversed) {
1859 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.d_id;
1860 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.s_id;
1861 } else {
1862 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
1863 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
1864 }
1865 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1866 if (status == FCP_TMF_CMPL) {
1867 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1868 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1869 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1870 resp->payload.ba_acct.high_seq_cnt = cpu_to_le16(0xFFFF);
1871 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1872 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1873 } else {
1874 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1875 resp->payload.ba_rjt.reason_code =
1876 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1877
1878 }
1879
1880 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1881
1882
1883 wmb();
1884 if (qpair->reqq_start_iocbs)
1885 qpair->reqq_start_iocbs(qpair);
1886 else
1887 qla2x00_start_iocbs(vha, qpair->req);
1888}
1889
1890
1891
1892
1893static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha,
1894 struct qla_qpair *qpair, response_t *pkt, struct qla_tgt_mgmt_cmd *mcmd)
1895{
1896 struct ctio7_to_24xx *ctio;
1897 u16 tmp;
1898 struct abts_recv_from_24xx *entry;
1899
1900 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, NULL);
1901 if (ctio == NULL) {
1902 ql_dbg(ql_dbg_tgt, vha, 0xe04b,
1903 "qla_target(%d): %s failed: unable to allocate "
1904 "request packet\n", vha->vp_idx, __func__);
1905 return;
1906 }
1907
1908 if (mcmd)
1909
1910 entry = &mcmd->orig_iocb.abts;
1911 else
1912
1913 entry = (struct abts_recv_from_24xx *)pkt;
1914
1915
1916
1917
1918
1919
1920 ctio->entry_type = CTIO_TYPE7;
1921 ctio->entry_count = 1;
1922 ctio->nport_handle = entry->nport_handle;
1923 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
1924 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
1925 ctio->vp_index = vha->vp_idx;
1926 ctio->exchange_addr = entry->exchange_addr_to_abort;
1927 tmp = (CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE);
1928
1929 if (mcmd) {
1930 ctio->initiator_id = entry->fcp_hdr_le.s_id;
1931
1932 if (mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID)
1933 tmp |= (mcmd->abort_io_attr << 9);
1934 else if (qpair->retry_term_cnt & 1)
1935 tmp |= (0x4 << 9);
1936 } else {
1937 ctio->initiator_id = entry->fcp_hdr_le.d_id;
1938
1939 if (qpair->retry_term_cnt & 1)
1940 tmp |= (0x4 << 9);
1941 }
1942 ctio->u.status1.flags = cpu_to_le16(tmp);
1943 ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id;
1944
1945 ql_dbg(ql_dbg_tgt, vha, 0xe007,
1946 "Sending retry TERM EXCH CTIO7 flags %04xh oxid %04xh attr valid %x\n",
1947 le16_to_cpu(ctio->u.status1.flags),
1948 le16_to_cpu(ctio->u.status1.ox_id),
1949 (mcmd && mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID) ? 1 : 0);
1950
1951
1952 wmb();
1953 if (qpair->reqq_start_iocbs)
1954 qpair->reqq_start_iocbs(qpair);
1955 else
1956 qla2x00_start_iocbs(vha, qpair->req);
1957
1958 if (mcmd)
1959 qlt_build_abts_resp_iocb(mcmd);
1960 else
1961 qlt_24xx_send_abts_resp(qpair,
1962 (struct abts_recv_from_24xx *)entry, FCP_TMF_CMPL, true);
1963
1964}
1965
1966
1967
1968
1969
1970
1971static void abort_cmds_for_lun(struct scsi_qla_host *vha, u64 lun, be_id_t s_id)
1972{
1973 struct qla_tgt_sess_op *op;
1974 struct qla_tgt_cmd *cmd;
1975 uint32_t key;
1976 unsigned long flags;
1977
1978 key = sid_to_key(s_id);
1979 spin_lock_irqsave(&vha->cmd_list_lock, flags);
1980 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
1981 uint32_t op_key;
1982 u64 op_lun;
1983
1984 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
1985 op_lun = scsilun_to_int(
1986 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
1987 if (op_key == key && op_lun == lun)
1988 op->aborted = true;
1989 }
1990
1991 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
1992 uint32_t op_key;
1993 u64 op_lun;
1994
1995 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
1996 op_lun = scsilun_to_int(
1997 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
1998 if (op_key == key && op_lun == lun)
1999 op->aborted = true;
2000 }
2001
2002 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
2003 uint32_t cmd_key;
2004 u64 cmd_lun;
2005
2006 cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
2007 cmd_lun = scsilun_to_int(
2008 (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun);
2009 if (cmd_key == key && cmd_lun == lun)
2010 cmd->aborted = 1;
2011 }
2012 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
2013}
2014
2015static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha,
2016 uint64_t unpacked_lun)
2017{
2018 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
2019 struct qla_qpair_hint *h = NULL;
2020
2021 if (vha->flags.qpairs_available) {
2022 h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun);
2023 if (!h)
2024 h = &tgt->qphints[0];
2025 } else {
2026 h = &tgt->qphints[0];
2027 }
2028
2029 return h;
2030}
2031
2032static void qlt_do_tmr_work(struct work_struct *work)
2033{
2034 struct qla_tgt_mgmt_cmd *mcmd =
2035 container_of(work, struct qla_tgt_mgmt_cmd, work);
2036 struct qla_hw_data *ha = mcmd->vha->hw;
2037 int rc;
2038 uint32_t tag;
2039 unsigned long flags;
2040
2041 switch (mcmd->tmr_func) {
2042 case QLA_TGT_ABTS:
2043 tag = le32_to_cpu(mcmd->orig_iocb.abts.exchange_addr_to_abort);
2044 break;
2045 default:
2046 tag = 0;
2047 break;
2048 }
2049
2050 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun,
2051 mcmd->tmr_func, tag);
2052
2053 if (rc != 0) {
2054 spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags);
2055 switch (mcmd->tmr_func) {
2056 case QLA_TGT_ABTS:
2057 mcmd->fc_tm_rsp = FCP_TMF_REJECTED;
2058 qlt_build_abts_resp_iocb(mcmd);
2059 break;
2060 case QLA_TGT_LUN_RESET:
2061 case QLA_TGT_CLEAR_TS:
2062 case QLA_TGT_ABORT_TS:
2063 case QLA_TGT_CLEAR_ACA:
2064 case QLA_TGT_TARGET_RESET:
2065 qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio,
2066 qla_sam_status);
2067 break;
2068
2069 case QLA_TGT_ABORT_ALL:
2070 case QLA_TGT_NEXUS_LOSS_SESS:
2071 case QLA_TGT_NEXUS_LOSS:
2072 qlt_send_notify_ack(mcmd->qpair,
2073 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2074 break;
2075 }
2076 spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags);
2077
2078 ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052,
2079 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
2080 mcmd->vha->vp_idx, rc);
2081 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2082 }
2083}
2084
2085
2086static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2087 struct abts_recv_from_24xx *abts, struct fc_port *sess)
2088{
2089 struct qla_hw_data *ha = vha->hw;
2090 struct qla_tgt_mgmt_cmd *mcmd;
2091 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
2092 struct qla_tgt_cmd *abort_cmd;
2093
2094 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
2095 "qla_target(%d): task abort (tag=%d)\n",
2096 vha->vp_idx, abts->exchange_addr_to_abort);
2097
2098 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
2099 if (mcmd == NULL) {
2100 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051,
2101 "qla_target(%d): %s: Allocation of ABORT cmd failed",
2102 vha->vp_idx, __func__);
2103 return -ENOMEM;
2104 }
2105 memset(mcmd, 0, sizeof(*mcmd));
2106 mcmd->cmd_type = TYPE_TGT_TMCMD;
2107 mcmd->sess = sess;
2108 memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
2109 mcmd->reset_count = ha->base_qpair->chip_reset;
2110 mcmd->tmr_func = QLA_TGT_ABTS;
2111 mcmd->qpair = h->qpair;
2112 mcmd->vha = vha;
2113
2114
2115
2116
2117
2118 mcmd->se_cmd.cpuid = h->cpuid;
2119
2120 abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
2121 le32_to_cpu(abts->exchange_addr_to_abort));
2122 if (!abort_cmd)
2123 return -EIO;
2124 mcmd->unpacked_lun = abort_cmd->se_cmd.orig_fe_lun;
2125
2126 if (abort_cmd->qpair) {
2127 mcmd->qpair = abort_cmd->qpair;
2128 mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid;
2129 mcmd->abort_io_attr = abort_cmd->atio.u.isp24.attr;
2130 mcmd->flags = QLA24XX_MGMT_ABORT_IO_ATTR_VALID;
2131 }
2132
2133 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
2134 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work);
2135
2136 return 0;
2137}
2138
2139
2140
2141
2142static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2143 struct abts_recv_from_24xx *abts)
2144{
2145 struct qla_hw_data *ha = vha->hw;
2146 struct fc_port *sess;
2147 uint32_t tag = le32_to_cpu(abts->exchange_addr_to_abort);
2148 be_id_t s_id;
2149 int rc;
2150 unsigned long flags;
2151
2152 if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) {
2153 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053,
2154 "qla_target(%d): ABTS: Abort Sequence not "
2155 "supported\n", vha->vp_idx);
2156 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2157 false);
2158 return;
2159 }
2160
2161 if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
2162 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010,
2163 "qla_target(%d): ABTS: Unknown Exchange "
2164 "Address received\n", vha->vp_idx);
2165 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2166 false);
2167 return;
2168 }
2169
2170 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011,
2171 "qla_target(%d): task abort (s_id=%x:%x:%x, "
2172 "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id.domain,
2173 abts->fcp_hdr_le.s_id.area, abts->fcp_hdr_le.s_id.al_pa, tag,
2174 le32_to_cpu(abts->fcp_hdr_le.parameter));
2175
2176 s_id = le_id_to_be(abts->fcp_hdr_le.s_id);
2177
2178 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
2179 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
2180 if (!sess) {
2181 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
2182 "qla_target(%d): task abort for non-existent session\n",
2183 vha->vp_idx);
2184 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2185
2186 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2187 false);
2188 return;
2189 }
2190 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2191
2192
2193 if (sess->deleted) {
2194 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2195 false);
2196 return;
2197 }
2198
2199 rc = __qlt_24xx_handle_abts(vha, abts, sess);
2200 if (rc != 0) {
2201 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054,
2202 "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
2203 vha->vp_idx, rc);
2204 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2205 false);
2206 return;
2207 }
2208}
2209
2210
2211
2212
2213static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair,
2214 struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code)
2215{
2216 struct scsi_qla_host *ha = mcmd->vha;
2217 struct atio_from_isp *atio = &mcmd->orig_iocb.atio;
2218 struct ctio7_to_24xx *ctio;
2219 uint16_t temp;
2220
2221 ql_dbg(ql_dbg_tgt, ha, 0xe008,
2222 "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n",
2223 ha, atio, resp_code);
2224
2225
2226 ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL);
2227 if (ctio == NULL) {
2228 ql_dbg(ql_dbg_tgt, ha, 0xe04c,
2229 "qla_target(%d): %s failed: unable to allocate "
2230 "request packet\n", ha->vp_idx, __func__);
2231 return;
2232 }
2233
2234 ctio->entry_type = CTIO_TYPE7;
2235 ctio->entry_count = 1;
2236 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
2237 ctio->nport_handle = cpu_to_le16(mcmd->sess->loop_id);
2238 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2239 ctio->vp_index = ha->vp_idx;
2240 ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2241 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2242 temp = (atio->u.isp24.attr << 9)|
2243 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2244 ctio->u.status1.flags = cpu_to_le16(temp);
2245 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2246 ctio->u.status1.ox_id = cpu_to_le16(temp);
2247 ctio->u.status1.scsi_status =
2248 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
2249 ctio->u.status1.response_len = cpu_to_le16(8);
2250 ctio->u.status1.sense_data[0] = resp_code;
2251
2252
2253 wmb();
2254 if (qpair->reqq_start_iocbs)
2255 qpair->reqq_start_iocbs(qpair);
2256 else
2257 qla2x00_start_iocbs(ha, qpair->req);
2258}
2259
2260void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
2261{
2262 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2263}
2264EXPORT_SYMBOL(qlt_free_mcmd);
2265
2266
2267
2268
2269
2270void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
2271 uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq)
2272{
2273 struct atio_from_isp *atio = &cmd->atio;
2274 struct ctio7_to_24xx *ctio;
2275 uint16_t temp;
2276 struct scsi_qla_host *vha = cmd->vha;
2277
2278 ql_dbg(ql_dbg_tgt_dif, vha, 0x3066,
2279 "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, "
2280 "sense_key=%02x, asc=%02x, ascq=%02x",
2281 vha, atio, scsi_status, sense_key, asc, ascq);
2282
2283 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
2284 if (!ctio) {
2285 ql_dbg(ql_dbg_async, vha, 0x3067,
2286 "qla2x00t(%ld): %s failed: unable to allocate request packet",
2287 vha->host_no, __func__);
2288 goto out;
2289 }
2290
2291 ctio->entry_type = CTIO_TYPE7;
2292 ctio->entry_count = 1;
2293 ctio->handle = QLA_TGT_SKIP_HANDLE;
2294 ctio->nport_handle = cpu_to_le16(cmd->sess->loop_id);
2295 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2296 ctio->vp_index = vha->vp_idx;
2297 ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2298 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2299 temp = (atio->u.isp24.attr << 9) |
2300 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2301 ctio->u.status1.flags = cpu_to_le16(temp);
2302 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2303 ctio->u.status1.ox_id = cpu_to_le16(temp);
2304 ctio->u.status1.scsi_status =
2305 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status);
2306 ctio->u.status1.response_len = cpu_to_le16(18);
2307 ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
2308
2309 if (ctio->u.status1.residual != 0)
2310 ctio->u.status1.scsi_status |=
2311 cpu_to_le16(SS_RESIDUAL_UNDER);
2312
2313
2314 ctio->u.status1.sense_data[0] = 0x70;
2315 ctio->u.status1.sense_data[2] = sense_key;
2316
2317 ctio->u.status1.sense_data[7] = 0xa;
2318
2319 ctio->u.status1.sense_data[12] = asc;
2320 ctio->u.status1.sense_data[13] = ascq;
2321
2322
2323 wmb();
2324
2325 if (qpair->reqq_start_iocbs)
2326 qpair->reqq_start_iocbs(qpair);
2327 else
2328 qla2x00_start_iocbs(vha, qpair->req);
2329
2330out:
2331 return;
2332}
2333
2334
2335void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
2336{
2337 struct scsi_qla_host *vha = mcmd->sess->vha;
2338 struct qla_hw_data *ha = vha->hw;
2339 unsigned long flags;
2340 struct qla_qpair *qpair = mcmd->qpair;
2341 bool free_mcmd = true;
2342
2343 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013,
2344 "TM response mcmd (%p) status %#x state %#x",
2345 mcmd, mcmd->fc_tm_rsp, mcmd->flags);
2346
2347 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
2348
2349 if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) {
2350
2351
2352
2353
2354 ql_dbg(ql_dbg_async, vha, 0xe100,
2355 "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n",
2356 vha->flags.online, qla2x00_reset_active(vha),
2357 mcmd->reset_count, qpair->chip_reset);
2358 ha->tgt.tgt_ops->free_mcmd(mcmd);
2359 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2360 return;
2361 }
2362
2363 if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) {
2364 switch (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode) {
2365 case ELS_LOGO:
2366 case ELS_PRLO:
2367 case ELS_TPRLO:
2368 ql_dbg(ql_dbg_disc, vha, 0x2106,
2369 "TM response logo %8phC status %#x state %#x",
2370 mcmd->sess->port_name, mcmd->fc_tm_rsp,
2371 mcmd->flags);
2372 qlt_schedule_sess_for_deletion(mcmd->sess);
2373 break;
2374 default:
2375 qlt_send_notify_ack(vha->hw->base_qpair,
2376 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2377 break;
2378 }
2379 } else {
2380 if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) {
2381 qlt_build_abts_resp_iocb(mcmd);
2382 free_mcmd = false;
2383 } else
2384 qlt_24xx_send_task_mgmt_ctio(qpair, mcmd,
2385 mcmd->fc_tm_rsp);
2386 }
2387
2388
2389
2390
2391
2392
2393
2394
2395 if (free_mcmd)
2396 ha->tgt.tgt_ops->free_mcmd(mcmd);
2397
2398 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2399}
2400EXPORT_SYMBOL(qlt_xmit_tm_rsp);
2401
2402
2403static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm)
2404{
2405 struct qla_tgt_cmd *cmd = prm->cmd;
2406
2407 BUG_ON(cmd->sg_cnt == 0);
2408
2409 prm->sg = (struct scatterlist *)cmd->sg;
2410 prm->seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev, cmd->sg,
2411 cmd->sg_cnt, cmd->dma_data_direction);
2412 if (unlikely(prm->seg_cnt == 0))
2413 goto out_err;
2414
2415 prm->cmd->sg_mapped = 1;
2416
2417 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) {
2418
2419
2420
2421
2422 if (prm->seg_cnt > QLA_TGT_DATASEGS_PER_CMD_24XX)
2423 prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt -
2424 QLA_TGT_DATASEGS_PER_CMD_24XX,
2425 QLA_TGT_DATASEGS_PER_CONT_24XX);
2426 } else {
2427
2428 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2429 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2430 prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz);
2431 prm->tot_dsds = prm->seg_cnt;
2432 } else
2433 prm->tot_dsds = prm->seg_cnt;
2434
2435 if (cmd->prot_sg_cnt) {
2436 prm->prot_sg = cmd->prot_sg;
2437 prm->prot_seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev,
2438 cmd->prot_sg, cmd->prot_sg_cnt,
2439 cmd->dma_data_direction);
2440 if (unlikely(prm->prot_seg_cnt == 0))
2441 goto out_err;
2442
2443 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2444 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2445
2446 prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen,
2447 cmd->blk_sz);
2448 prm->tot_dsds += prm->prot_seg_cnt;
2449 } else
2450 prm->tot_dsds += prm->prot_seg_cnt;
2451 }
2452 }
2453
2454 return 0;
2455
2456out_err:
2457 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d,
2458 "qla_target(%d): PCI mapping failed: sg_cnt=%d",
2459 0, prm->cmd->sg_cnt);
2460 return -1;
2461}
2462
2463static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd)
2464{
2465 struct qla_hw_data *ha;
2466 struct qla_qpair *qpair;
2467
2468 if (!cmd->sg_mapped)
2469 return;
2470
2471 qpair = cmd->qpair;
2472
2473 dma_unmap_sg(&qpair->pdev->dev, cmd->sg, cmd->sg_cnt,
2474 cmd->dma_data_direction);
2475 cmd->sg_mapped = 0;
2476
2477 if (cmd->prot_sg_cnt)
2478 dma_unmap_sg(&qpair->pdev->dev, cmd->prot_sg, cmd->prot_sg_cnt,
2479 cmd->dma_data_direction);
2480
2481 if (!cmd->ctx)
2482 return;
2483 ha = vha->hw;
2484 if (cmd->ctx_dsd_alloced)
2485 qla2x00_clean_dsd_pool(ha, cmd->ctx);
2486
2487 dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma);
2488}
2489
2490static int qlt_check_reserve_free_req(struct qla_qpair *qpair,
2491 uint32_t req_cnt)
2492{
2493 uint32_t cnt;
2494 struct req_que *req = qpair->req;
2495
2496 if (req->cnt < (req_cnt + 2)) {
2497 cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr :
2498 rd_reg_dword_relaxed(req->req_q_out));
2499
2500 if (req->ring_index < cnt)
2501 req->cnt = cnt - req->ring_index;
2502 else
2503 req->cnt = req->length - (req->ring_index - cnt);
2504
2505 if (unlikely(req->cnt < (req_cnt + 2)))
2506 return -EAGAIN;
2507 }
2508
2509 req->cnt -= req_cnt;
2510
2511 return 0;
2512}
2513
2514
2515
2516
2517static inline void *qlt_get_req_pkt(struct req_que *req)
2518{
2519
2520 req->ring_index++;
2521 if (req->ring_index == req->length) {
2522 req->ring_index = 0;
2523 req->ring_ptr = req->ring;
2524 } else {
2525 req->ring_ptr++;
2526 }
2527 return (cont_entry_t *)req->ring_ptr;
2528}
2529
2530
2531static inline uint32_t qlt_make_handle(struct qla_qpair *qpair)
2532{
2533 uint32_t h;
2534 int index;
2535 uint8_t found = 0;
2536 struct req_que *req = qpair->req;
2537
2538 h = req->current_outstanding_cmd;
2539
2540 for (index = 1; index < req->num_outstanding_cmds; index++) {
2541 h++;
2542 if (h == req->num_outstanding_cmds)
2543 h = 1;
2544
2545 if (h == QLA_TGT_SKIP_HANDLE)
2546 continue;
2547
2548 if (!req->outstanding_cmds[h]) {
2549 found = 1;
2550 break;
2551 }
2552 }
2553
2554 if (found) {
2555 req->current_outstanding_cmd = h;
2556 } else {
2557 ql_dbg(ql_dbg_io, qpair->vha, 0x305b,
2558 "qla_target(%d): Ran out of empty cmd slots\n",
2559 qpair->vha->vp_idx);
2560 h = QLA_TGT_NULL_HANDLE;
2561 }
2562
2563 return h;
2564}
2565
2566
2567static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair,
2568 struct qla_tgt_prm *prm)
2569{
2570 uint32_t h;
2571 struct ctio7_to_24xx *pkt;
2572 struct atio_from_isp *atio = &prm->cmd->atio;
2573 uint16_t temp;
2574
2575 pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr;
2576 prm->pkt = pkt;
2577 memset(pkt, 0, sizeof(*pkt));
2578
2579 pkt->entry_type = CTIO_TYPE7;
2580 pkt->entry_count = (uint8_t)prm->req_cnt;
2581 pkt->vp_index = prm->cmd->vp_idx;
2582
2583 h = qlt_make_handle(qpair);
2584 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
2585
2586
2587
2588
2589
2590 return -EAGAIN;
2591 } else
2592 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
2593
2594 pkt->handle = make_handle(qpair->req->id, h);
2595 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
2596 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
2597 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2598 pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2599 pkt->exchange_addr = atio->u.isp24.exchange_addr;
2600 temp = atio->u.isp24.attr << 9;
2601 pkt->u.status0.flags |= cpu_to_le16(temp);
2602 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2603 pkt->u.status0.ox_id = cpu_to_le16(temp);
2604 pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset);
2605
2606 return 0;
2607}
2608
2609
2610
2611
2612
2613static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm)
2614{
2615 int cnt;
2616 struct dsd64 *cur_dsd;
2617
2618
2619 while (prm->seg_cnt > 0) {
2620 cont_a64_entry_t *cont_pkt64 =
2621 (cont_a64_entry_t *)qlt_get_req_pkt(
2622 prm->cmd->qpair->req);
2623
2624
2625
2626
2627
2628
2629
2630
2631 memset(cont_pkt64, 0, sizeof(*cont_pkt64));
2632
2633 cont_pkt64->entry_count = 1;
2634 cont_pkt64->sys_define = 0;
2635
2636 cont_pkt64->entry_type = CONTINUE_A64_TYPE;
2637 cur_dsd = cont_pkt64->dsd;
2638
2639
2640 for (cnt = 0;
2641 cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt;
2642 cnt++, prm->seg_cnt--) {
2643 append_dsd64(&cur_dsd, prm->sg);
2644 prm->sg = sg_next(prm->sg);
2645 }
2646 }
2647}
2648
2649
2650
2651
2652
2653static void qlt_load_data_segments(struct qla_tgt_prm *prm)
2654{
2655 int cnt;
2656 struct dsd64 *cur_dsd;
2657 struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt;
2658
2659 pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen);
2660
2661
2662 cur_dsd = &pkt24->u.status0.dsd;
2663
2664
2665 if (prm->seg_cnt)
2666 pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
2667
2668 if (prm->seg_cnt == 0) {
2669
2670 cur_dsd->address = 0;
2671 cur_dsd->length = 0;
2672 return;
2673 }
2674
2675
2676
2677
2678 for (cnt = 0;
2679 (cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt;
2680 cnt++, prm->seg_cnt--) {
2681 append_dsd64(&cur_dsd, prm->sg);
2682 prm->sg = sg_next(prm->sg);
2683 }
2684
2685 qlt_load_cont_data_segments(prm);
2686}
2687
2688static inline int qlt_has_data(struct qla_tgt_cmd *cmd)
2689{
2690 return cmd->bufflen > 0;
2691}
2692
2693static void qlt_print_dif_err(struct qla_tgt_prm *prm)
2694{
2695 struct qla_tgt_cmd *cmd;
2696 struct scsi_qla_host *vha;
2697
2698
2699 if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) {
2700 cmd = prm->cmd;
2701 vha = cmd->vha;
2702
2703 switch (prm->sense_buffer[13]) {
2704 case 1:
2705 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b,
2706 "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2707 "se_cmd=%p tag[%x]",
2708 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2709 cmd->atio.u.isp24.exchange_addr);
2710 break;
2711 case 2:
2712 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c,
2713 "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2714 "se_cmd=%p tag[%x]",
2715 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2716 cmd->atio.u.isp24.exchange_addr);
2717 break;
2718 case 3:
2719 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f,
2720 "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2721 "se_cmd=%p tag[%x]",
2722 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2723 cmd->atio.u.isp24.exchange_addr);
2724 break;
2725 default:
2726 ql_dbg(ql_dbg_tgt_dif, vha, 0xe010,
2727 "BE detected Dif ERR: lba[%llx|%lld] len[%x] "
2728 "se_cmd=%p tag[%x]",
2729 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2730 cmd->atio.u.isp24.exchange_addr);
2731 break;
2732 }
2733 ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16);
2734 }
2735}
2736
2737
2738
2739
2740static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
2741 struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status,
2742 uint32_t *full_req_cnt)
2743{
2744 struct se_cmd *se_cmd = &cmd->se_cmd;
2745 struct qla_qpair *qpair = cmd->qpair;
2746
2747 prm->cmd = cmd;
2748 prm->tgt = cmd->tgt;
2749 prm->pkt = NULL;
2750 prm->rq_result = scsi_status;
2751 prm->sense_buffer = &cmd->sense_buffer[0];
2752 prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER;
2753 prm->sg = NULL;
2754 prm->seg_cnt = -1;
2755 prm->req_cnt = 1;
2756 prm->residual = 0;
2757 prm->add_status_pkt = 0;
2758 prm->prot_sg = NULL;
2759 prm->prot_seg_cnt = 0;
2760 prm->tot_dsds = 0;
2761
2762 if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) {
2763 if (qlt_pci_map_calc_cnt(prm) != 0)
2764 return -EAGAIN;
2765 }
2766
2767 *full_req_cnt = prm->req_cnt;
2768
2769 if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
2770 prm->residual = se_cmd->residual_count;
2771 ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c,
2772 "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2773 prm->residual, se_cmd->tag,
2774 se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
2775 cmd->bufflen, prm->rq_result);
2776 prm->rq_result |= SS_RESIDUAL_UNDER;
2777 } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
2778 prm->residual = se_cmd->residual_count;
2779 ql_dbg_qp(ql_dbg_io, qpair, 0x305d,
2780 "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2781 prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
2782 se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
2783 prm->rq_result |= SS_RESIDUAL_OVER;
2784 }
2785
2786 if (xmit_type & QLA_TGT_XMIT_STATUS) {
2787
2788
2789
2790
2791 if (qlt_has_data(cmd)) {
2792 if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
2793 (IS_FWI2_CAPABLE(cmd->vha->hw) &&
2794 (prm->rq_result != 0))) {
2795 prm->add_status_pkt = 1;
2796 (*full_req_cnt)++;
2797 }
2798 }
2799 }
2800
2801 return 0;
2802}
2803
2804static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd,
2805 int sending_sense)
2806{
2807 if (cmd->qpair->enable_class_2)
2808 return 0;
2809
2810 if (sending_sense)
2811 return cmd->conf_compl_supported;
2812 else
2813 return cmd->qpair->enable_explicit_conf &&
2814 cmd->conf_compl_supported;
2815}
2816
2817static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
2818 struct qla_tgt_prm *prm)
2819{
2820 prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
2821 (uint32_t)sizeof(ctio->u.status1.sense_data));
2822 ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
2823 if (qlt_need_explicit_conf(prm->cmd, 0)) {
2824 ctio->u.status0.flags |= cpu_to_le16(
2825 CTIO7_FLAGS_EXPLICIT_CONFORM |
2826 CTIO7_FLAGS_CONFORM_REQ);
2827 }
2828 ctio->u.status0.residual = cpu_to_le32(prm->residual);
2829 ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result);
2830 if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
2831 int i;
2832
2833 if (qlt_need_explicit_conf(prm->cmd, 1)) {
2834 if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) {
2835 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017,
2836 "Skipping EXPLICIT_CONFORM and "
2837 "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
2838 "non GOOD status\n");
2839 goto skip_explict_conf;
2840 }
2841 ctio->u.status1.flags |= cpu_to_le16(
2842 CTIO7_FLAGS_EXPLICIT_CONFORM |
2843 CTIO7_FLAGS_CONFORM_REQ);
2844 }
2845skip_explict_conf:
2846 ctio->u.status1.flags &=
2847 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2848 ctio->u.status1.flags |=
2849 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2850 ctio->u.status1.scsi_status |=
2851 cpu_to_le16(SS_SENSE_LEN_VALID);
2852 ctio->u.status1.sense_length =
2853 cpu_to_le16(prm->sense_buffer_len);
2854 for (i = 0; i < prm->sense_buffer_len/4; i++) {
2855 uint32_t v;
2856
2857 v = get_unaligned_be32(
2858 &((uint32_t *)prm->sense_buffer)[i]);
2859 put_unaligned_le32(v,
2860 &((uint32_t *)ctio->u.status1.sense_data)[i]);
2861 }
2862 qlt_print_dif_err(prm);
2863
2864 } else {
2865 ctio->u.status1.flags &=
2866 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2867 ctio->u.status1.flags |=
2868 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2869 ctio->u.status1.sense_length = 0;
2870 memset(ctio->u.status1.sense_data, 0,
2871 sizeof(ctio->u.status1.sense_data));
2872 }
2873
2874
2875}
2876
2877static inline int
2878qlt_hba_err_chk_enabled(struct se_cmd *se_cmd)
2879{
2880 switch (se_cmd->prot_op) {
2881 case TARGET_PROT_DOUT_INSERT:
2882 case TARGET_PROT_DIN_STRIP:
2883 if (ql2xenablehba_err_chk >= 1)
2884 return 1;
2885 break;
2886 case TARGET_PROT_DOUT_PASS:
2887 case TARGET_PROT_DIN_PASS:
2888 if (ql2xenablehba_err_chk >= 2)
2889 return 1;
2890 break;
2891 case TARGET_PROT_DIN_INSERT:
2892 case TARGET_PROT_DOUT_STRIP:
2893 return 1;
2894 default:
2895 break;
2896 }
2897 return 0;
2898}
2899
2900static inline int
2901qla_tgt_ref_mask_check(struct se_cmd *se_cmd)
2902{
2903 switch (se_cmd->prot_op) {
2904 case TARGET_PROT_DIN_INSERT:
2905 case TARGET_PROT_DOUT_INSERT:
2906 case TARGET_PROT_DIN_STRIP:
2907 case TARGET_PROT_DOUT_STRIP:
2908 case TARGET_PROT_DIN_PASS:
2909 case TARGET_PROT_DOUT_PASS:
2910 return 1;
2911 default:
2912 return 0;
2913 }
2914 return 0;
2915}
2916
2917
2918
2919
2920static void
2921qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx,
2922 uint16_t *pfw_prot_opts)
2923{
2924 struct se_cmd *se_cmd = &cmd->se_cmd;
2925 uint32_t lba = 0xffffffff & se_cmd->t_task_lba;
2926 scsi_qla_host_t *vha = cmd->tgt->vha;
2927 struct qla_hw_data *ha = vha->hw;
2928 uint32_t t32 = 0;
2929
2930
2931
2932
2933
2934
2935 ctx->app_tag = 0;
2936 ctx->app_tag_mask[0] = 0x0;
2937 ctx->app_tag_mask[1] = 0x0;
2938
2939 if (IS_PI_UNINIT_CAPABLE(ha)) {
2940 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
2941 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
2942 *pfw_prot_opts |= PO_DIS_VALD_APP_ESC;
2943 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
2944 *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
2945 }
2946
2947 t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts);
2948
2949 switch (se_cmd->prot_type) {
2950 case TARGET_DIF_TYPE0_PROT:
2951
2952
2953
2954
2955
2956 ctx->ref_tag = cpu_to_le32(lba);
2957
2958 ctx->ref_tag_mask[0] = 0xff;
2959 ctx->ref_tag_mask[1] = 0xff;
2960 ctx->ref_tag_mask[2] = 0xff;
2961 ctx->ref_tag_mask[3] = 0xff;
2962 break;
2963 case TARGET_DIF_TYPE1_PROT:
2964
2965
2966
2967
2968 ctx->ref_tag = cpu_to_le32(lba);
2969 if (!qla_tgt_ref_mask_check(se_cmd) ||
2970 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
2971 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2972 break;
2973 }
2974
2975 ctx->ref_tag_mask[0] = 0xff;
2976 ctx->ref_tag_mask[1] = 0xff;
2977 ctx->ref_tag_mask[2] = 0xff;
2978 ctx->ref_tag_mask[3] = 0xff;
2979 break;
2980 case TARGET_DIF_TYPE2_PROT:
2981
2982
2983
2984
2985 ctx->ref_tag = cpu_to_le32(lba);
2986 if (!qla_tgt_ref_mask_check(se_cmd) ||
2987 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
2988 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2989 break;
2990 }
2991
2992 ctx->ref_tag_mask[0] = 0xff;
2993 ctx->ref_tag_mask[1] = 0xff;
2994 ctx->ref_tag_mask[2] = 0xff;
2995 ctx->ref_tag_mask[3] = 0xff;
2996 break;
2997 case TARGET_DIF_TYPE3_PROT:
2998
2999 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
3000 ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] =
3001 ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00;
3002 break;
3003 }
3004}
3005
3006static inline int
3007qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm)
3008{
3009 struct dsd64 *cur_dsd;
3010 uint32_t transfer_length = 0;
3011 uint32_t data_bytes;
3012 uint32_t dif_bytes;
3013 uint8_t bundling = 1;
3014 struct crc_context *crc_ctx_pkt = NULL;
3015 struct qla_hw_data *ha;
3016 struct ctio_crc2_to_fw *pkt;
3017 dma_addr_t crc_ctx_dma;
3018 uint16_t fw_prot_opts = 0;
3019 struct qla_tgt_cmd *cmd = prm->cmd;
3020 struct se_cmd *se_cmd = &cmd->se_cmd;
3021 uint32_t h;
3022 struct atio_from_isp *atio = &prm->cmd->atio;
3023 struct qla_tc_param tc;
3024 uint16_t t16;
3025 scsi_qla_host_t *vha = cmd->vha;
3026
3027 ha = vha->hw;
3028
3029 pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr;
3030 prm->pkt = pkt;
3031 memset(pkt, 0, sizeof(*pkt));
3032
3033 ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071,
3034 "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n",
3035 cmd->vp_idx, __func__, se_cmd, se_cmd->prot_op,
3036 prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba);
3037
3038 if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) ||
3039 (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP))
3040 bundling = 0;
3041
3042
3043 data_bytes = cmd->bufflen;
3044 dif_bytes = (data_bytes / cmd->blk_sz) * 8;
3045
3046 switch (se_cmd->prot_op) {
3047 case TARGET_PROT_DIN_INSERT:
3048 case TARGET_PROT_DOUT_STRIP:
3049 transfer_length = data_bytes;
3050 if (cmd->prot_sg_cnt)
3051 data_bytes += dif_bytes;
3052 break;
3053 case TARGET_PROT_DIN_STRIP:
3054 case TARGET_PROT_DOUT_INSERT:
3055 case TARGET_PROT_DIN_PASS:
3056 case TARGET_PROT_DOUT_PASS:
3057 transfer_length = data_bytes + dif_bytes;
3058 break;
3059 default:
3060 BUG();
3061 break;
3062 }
3063
3064 if (!qlt_hba_err_chk_enabled(se_cmd))
3065 fw_prot_opts |= 0x10;
3066
3067 else if (IS_PI_UNINIT_CAPABLE(ha)) {
3068 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
3069 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
3070 fw_prot_opts |= PO_DIS_VALD_APP_ESC;
3071 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
3072 fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
3073 }
3074
3075 switch (se_cmd->prot_op) {
3076 case TARGET_PROT_DIN_INSERT:
3077 case TARGET_PROT_DOUT_INSERT:
3078 fw_prot_opts |= PO_MODE_DIF_INSERT;
3079 break;
3080 case TARGET_PROT_DIN_STRIP:
3081 case TARGET_PROT_DOUT_STRIP:
3082 fw_prot_opts |= PO_MODE_DIF_REMOVE;
3083 break;
3084 case TARGET_PROT_DIN_PASS:
3085 case TARGET_PROT_DOUT_PASS:
3086 fw_prot_opts |= PO_MODE_DIF_PASS;
3087
3088 break;
3089 default:
3090 fw_prot_opts |= PO_MODE_DIF_PASS;
3091 break;
3092 }
3093
3094
3095
3096 pkt->entry_type = CTIO_CRC2;
3097 pkt->entry_count = 1;
3098 pkt->vp_index = cmd->vp_idx;
3099
3100 h = qlt_make_handle(qpair);
3101 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
3102
3103
3104
3105
3106
3107 return -EAGAIN;
3108 } else
3109 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
3110
3111 pkt->handle = make_handle(qpair->req->id, h);
3112 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
3113 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
3114 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3115 pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
3116 pkt->exchange_addr = atio->u.isp24.exchange_addr;
3117
3118
3119 t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3120 pkt->ox_id = cpu_to_le16(t16);
3121
3122 t16 = (atio->u.isp24.attr << 9);
3123 pkt->flags |= cpu_to_le16(t16);
3124 pkt->relative_offset = cpu_to_le32(prm->cmd->offset);
3125
3126
3127 if (cmd->dma_data_direction == DMA_TO_DEVICE)
3128 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN);
3129 else if (cmd->dma_data_direction == DMA_FROM_DEVICE)
3130 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT);
3131
3132 pkt->dseg_count = cpu_to_le16(prm->tot_dsds);
3133
3134 pkt->transfer_length = cpu_to_le32(transfer_length);
3135
3136
3137
3138
3139 crc_ctx_pkt = cmd->ctx =
3140 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
3141
3142 if (!crc_ctx_pkt)
3143 goto crc_queuing_error;
3144
3145 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
3146 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
3147
3148
3149 crc_ctx_pkt->handle = pkt->handle;
3150
3151 qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts);
3152
3153 put_unaligned_le64(crc_ctx_dma, &pkt->crc_context_address);
3154 pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW);
3155
3156 if (!bundling) {
3157 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
3158 } else {
3159
3160
3161
3162
3163 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
3164 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
3165 crc_ctx_pkt->u.bundling.dseg_count =
3166 cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt);
3167 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0];
3168 }
3169
3170
3171 crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz);
3172 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
3173 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
3174 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
3175
3176 memset((uint8_t *)&tc, 0 , sizeof(tc));
3177 tc.vha = vha;
3178 tc.blk_sz = cmd->blk_sz;
3179 tc.bufflen = cmd->bufflen;
3180 tc.sg = cmd->sg;
3181 tc.prot_sg = cmd->prot_sg;
3182 tc.ctx = crc_ctx_pkt;
3183 tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced;
3184
3185
3186 pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR);
3187
3188 if (!bundling && prm->prot_seg_cnt) {
3189 if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd,
3190 prm->tot_dsds, &tc))
3191 goto crc_queuing_error;
3192 } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd,
3193 (prm->tot_dsds - prm->prot_seg_cnt), &tc))
3194 goto crc_queuing_error;
3195
3196 if (bundling && prm->prot_seg_cnt) {
3197
3198 pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA;
3199
3200 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
3201 if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd,
3202 prm->prot_seg_cnt, cmd))
3203 goto crc_queuing_error;
3204 }
3205 return QLA_SUCCESS;
3206
3207crc_queuing_error:
3208
3209 qpair->req->outstanding_cmds[h] = NULL;
3210
3211 return QLA_FUNCTION_FAILED;
3212}
3213
3214
3215
3216
3217
3218int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
3219 uint8_t scsi_status)
3220{
3221 struct scsi_qla_host *vha = cmd->vha;
3222 struct qla_qpair *qpair = cmd->qpair;
3223 struct ctio7_to_24xx *pkt;
3224 struct qla_tgt_prm prm;
3225 uint32_t full_req_cnt = 0;
3226 unsigned long flags = 0;
3227 int res;
3228
3229 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3230 (cmd->sess && cmd->sess->deleted)) {
3231 cmd->state = QLA_TGT_STATE_PROCESSED;
3232 return 0;
3233 }
3234
3235 ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018,
3236 "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n",
3237 (xmit_type & QLA_TGT_XMIT_STATUS) ?
3238 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction,
3239 &cmd->se_cmd, qpair->id);
3240
3241 res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
3242 &full_req_cnt);
3243 if (unlikely(res != 0)) {
3244 return res;
3245 }
3246
3247 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3248
3249 if (xmit_type == QLA_TGT_XMIT_STATUS)
3250 qpair->tgt_counters.core_qla_snd_status++;
3251 else
3252 qpair->tgt_counters.core_qla_que_buf++;
3253
3254 if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) {
3255
3256
3257
3258
3259 cmd->state = QLA_TGT_STATE_PROCESSED;
3260 ql_dbg_qp(ql_dbg_async, qpair, 0xe101,
3261 "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
3262 vha->flags.online, qla2x00_reset_active(vha),
3263 cmd->reset_count, qpair->chip_reset);
3264 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3265 return 0;
3266 }
3267
3268
3269 res = qlt_check_reserve_free_req(qpair, full_req_cnt);
3270 if (unlikely(res))
3271 goto out_unmap_unlock;
3272
3273 if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA))
3274 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3275 else
3276 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3277 if (unlikely(res != 0)) {
3278 qpair->req->cnt += full_req_cnt;
3279 goto out_unmap_unlock;
3280 }
3281
3282 pkt = (struct ctio7_to_24xx *)prm.pkt;
3283
3284 if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
3285 pkt->u.status0.flags |=
3286 cpu_to_le16(CTIO7_FLAGS_DATA_IN |
3287 CTIO7_FLAGS_STATUS_MODE_0);
3288
3289 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3290 qlt_load_data_segments(&prm);
3291
3292 if (prm.add_status_pkt == 0) {
3293 if (xmit_type & QLA_TGT_XMIT_STATUS) {
3294 pkt->u.status0.scsi_status =
3295 cpu_to_le16(prm.rq_result);
3296 pkt->u.status0.residual =
3297 cpu_to_le32(prm.residual);
3298 pkt->u.status0.flags |= cpu_to_le16(
3299 CTIO7_FLAGS_SEND_STATUS);
3300 if (qlt_need_explicit_conf(cmd, 0)) {
3301 pkt->u.status0.flags |=
3302 cpu_to_le16(
3303 CTIO7_FLAGS_EXPLICIT_CONFORM |
3304 CTIO7_FLAGS_CONFORM_REQ);
3305 }
3306 }
3307
3308 } else {
3309
3310
3311
3312
3313
3314 struct ctio7_to_24xx *ctio =
3315 (struct ctio7_to_24xx *)qlt_get_req_pkt(
3316 qpair->req);
3317
3318 ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e,
3319 "Building additional status packet 0x%p.\n",
3320 ctio);
3321
3322
3323
3324
3325
3326 memcpy(ctio, pkt, sizeof(*ctio));
3327
3328 ctio->entry_count = 1;
3329 ctio->entry_type = CTIO_TYPE7;
3330 ctio->dseg_count = 0;
3331 ctio->u.status1.flags &= ~cpu_to_le16(
3332 CTIO7_FLAGS_DATA_IN);
3333
3334
3335 pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
3336 pkt->u.status0.flags |= cpu_to_le16(
3337 CTIO7_FLAGS_DONT_RET_CTIO);
3338
3339
3340
3341
3342
3343 qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio,
3344 &prm);
3345 }
3346 } else
3347 qlt_24xx_init_ctio_to_isp(pkt, &prm);
3348
3349
3350 cmd->state = QLA_TGT_STATE_PROCESSED;
3351 cmd->cmd_sent_to_fw = 1;
3352 cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
3353
3354
3355 wmb();
3356 if (qpair->reqq_start_iocbs)
3357 qpair->reqq_start_iocbs(qpair);
3358 else
3359 qla2x00_start_iocbs(vha, qpair->req);
3360 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3361
3362 return 0;
3363
3364out_unmap_unlock:
3365 qlt_unmap_sg(vha, cmd);
3366 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3367
3368 return res;
3369}
3370EXPORT_SYMBOL(qlt_xmit_response);
3371
3372int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
3373{
3374 struct ctio7_to_24xx *pkt;
3375 struct scsi_qla_host *vha = cmd->vha;
3376 struct qla_tgt *tgt = cmd->tgt;
3377 struct qla_tgt_prm prm;
3378 unsigned long flags = 0;
3379 int res = 0;
3380 struct qla_qpair *qpair = cmd->qpair;
3381
3382 memset(&prm, 0, sizeof(prm));
3383 prm.cmd = cmd;
3384 prm.tgt = tgt;
3385 prm.sg = NULL;
3386 prm.req_cnt = 1;
3387
3388
3389 if (qlt_pci_map_calc_cnt(&prm) != 0)
3390 return -EAGAIN;
3391
3392 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3393 (cmd->sess && cmd->sess->deleted)) {
3394
3395
3396
3397
3398 cmd->aborted = 1;
3399 cmd->write_data_transferred = 0;
3400 cmd->state = QLA_TGT_STATE_DATA_IN;
3401 vha->hw->tgt.tgt_ops->handle_data(cmd);
3402 ql_dbg_qp(ql_dbg_async, qpair, 0xe102,
3403 "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
3404 vha->flags.online, qla2x00_reset_active(vha),
3405 cmd->reset_count, qpair->chip_reset);
3406 return 0;
3407 }
3408
3409 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3410
3411 res = qlt_check_reserve_free_req(qpair, prm.req_cnt);
3412 if (res != 0)
3413 goto out_unlock_free_unmap;
3414 if (cmd->se_cmd.prot_op)
3415 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3416 else
3417 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3418
3419 if (unlikely(res != 0)) {
3420 qpair->req->cnt += prm.req_cnt;
3421 goto out_unlock_free_unmap;
3422 }
3423
3424 pkt = (struct ctio7_to_24xx *)prm.pkt;
3425 pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
3426 CTIO7_FLAGS_STATUS_MODE_0);
3427
3428 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3429 qlt_load_data_segments(&prm);
3430
3431 cmd->state = QLA_TGT_STATE_NEED_DATA;
3432 cmd->cmd_sent_to_fw = 1;
3433 cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
3434
3435
3436 wmb();
3437 if (qpair->reqq_start_iocbs)
3438 qpair->reqq_start_iocbs(qpair);
3439 else
3440 qla2x00_start_iocbs(vha, qpair->req);
3441 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3442
3443 return res;
3444
3445out_unlock_free_unmap:
3446 qlt_unmap_sg(vha, cmd);
3447 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3448
3449 return res;
3450}
3451EXPORT_SYMBOL(qlt_rdy_to_xfer);
3452
3453
3454
3455
3456
3457static void
3458qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
3459 struct ctio_crc_from_fw *sts)
3460{
3461 uint8_t *ap = &sts->actual_dif[0];
3462 uint8_t *ep = &sts->expected_dif[0];
3463 uint64_t lba = cmd->se_cmd.t_task_lba;
3464 uint8_t scsi_status, sense_key, asc, ascq;
3465 unsigned long flags;
3466 struct scsi_qla_host *vha = cmd->vha;
3467
3468 cmd->trc_flags |= TRC_DIF_ERR;
3469
3470 cmd->a_guard = get_unaligned_be16(ap + 0);
3471 cmd->a_app_tag = get_unaligned_be16(ap + 2);
3472 cmd->a_ref_tag = get_unaligned_be32(ap + 4);
3473
3474 cmd->e_guard = get_unaligned_be16(ep + 0);
3475 cmd->e_app_tag = get_unaligned_be16(ep + 2);
3476 cmd->e_ref_tag = get_unaligned_be32(ep + 4);
3477
3478 ql_dbg(ql_dbg_tgt_dif, vha, 0xf075,
3479 "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state);
3480
3481 scsi_status = sense_key = asc = ascq = 0;
3482
3483
3484 if (cmd->e_app_tag != cmd->a_app_tag) {
3485 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d,
3486 "App Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard [%x|%x] cmd=%p ox_id[%04x]",
3487 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3488 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3489 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3490 cmd->atio.u.isp24.fcp_hdr.ox_id);
3491
3492 cmd->dif_err_code = DIF_ERR_APP;
3493 scsi_status = SAM_STAT_CHECK_CONDITION;
3494 sense_key = ABORTED_COMMAND;
3495 asc = 0x10;
3496 ascq = 0x2;
3497 }
3498
3499
3500 if (cmd->e_ref_tag != cmd->a_ref_tag) {
3501 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e,
3502 "Ref Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard[%x|%x] cmd=%p ox_id[%04x] ",
3503 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3504 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3505 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3506 cmd->atio.u.isp24.fcp_hdr.ox_id);
3507
3508 cmd->dif_err_code = DIF_ERR_REF;
3509 scsi_status = SAM_STAT_CHECK_CONDITION;
3510 sense_key = ABORTED_COMMAND;
3511 asc = 0x10;
3512 ascq = 0x3;
3513 goto out;
3514 }
3515
3516
3517 if (cmd->e_guard != cmd->a_guard) {
3518 ql_dbg(ql_dbg_tgt_dif, vha, 0xe012,
3519 "Guard ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard [%x|%x] cmd=%p ox_id[%04x]",
3520 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3521 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3522 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3523 cmd->atio.u.isp24.fcp_hdr.ox_id);
3524
3525 cmd->dif_err_code = DIF_ERR_GRD;
3526 scsi_status = SAM_STAT_CHECK_CONDITION;
3527 sense_key = ABORTED_COMMAND;
3528 asc = 0x10;
3529 ascq = 0x1;
3530 }
3531out:
3532 switch (cmd->state) {
3533 case QLA_TGT_STATE_NEED_DATA:
3534
3535 cmd->state = QLA_TGT_STATE_DATA_IN;
3536 vha->hw->tgt.tgt_ops->handle_data(cmd);
3537 break;
3538 default:
3539 spin_lock_irqsave(&cmd->cmd_lock, flags);
3540 if (cmd->aborted) {
3541 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3542 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3543 break;
3544 }
3545 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3546
3547 qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc,
3548 ascq);
3549
3550
3551
3552 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3553 break;
3554 }
3555}
3556
3557
3558
3559static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3560 struct imm_ntfy_from_isp *ntfy)
3561{
3562 struct nack_to_isp *nack;
3563 struct qla_hw_data *ha = vha->hw;
3564 request_t *pkt;
3565 int ret = 0;
3566
3567 ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c,
3568 "Sending TERM ELS CTIO (ha=%p)\n", ha);
3569
3570 pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
3571 if (pkt == NULL) {
3572 ql_dbg(ql_dbg_tgt, vha, 0xe080,
3573 "qla_target(%d): %s failed: unable to allocate "
3574 "request packet\n", vha->vp_idx, __func__);
3575 return -ENOMEM;
3576 }
3577
3578 pkt->entry_type = NOTIFY_ACK_TYPE;
3579 pkt->entry_count = 1;
3580 pkt->handle = QLA_TGT_SKIP_HANDLE;
3581
3582 nack = (struct nack_to_isp *)pkt;
3583 nack->ox_id = ntfy->ox_id;
3584
3585 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3586 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3587 nack->u.isp24.flags = ntfy->u.isp24.flags &
3588 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
3589 }
3590
3591
3592 nack->u.isp24.flags |=
3593 __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE);
3594
3595 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3596 nack->u.isp24.status = ntfy->u.isp24.status;
3597 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3598 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3599 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3600 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3601 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3602 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3603
3604 qla2x00_start_iocbs(vha, vha->req);
3605 return ret;
3606}
3607
3608static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3609 struct imm_ntfy_from_isp *imm, int ha_locked)
3610{
3611 int rc;
3612
3613 WARN_ON_ONCE(!ha_locked);
3614 rc = __qlt_send_term_imm_notif(vha, imm);
3615 pr_debug("rc = %d\n", rc);
3616}
3617
3618
3619
3620
3621
3622static int __qlt_send_term_exchange(struct qla_qpair *qpair,
3623 struct qla_tgt_cmd *cmd,
3624 struct atio_from_isp *atio)
3625{
3626 struct scsi_qla_host *vha = qpair->vha;
3627 struct ctio7_to_24xx *ctio24;
3628 struct qla_hw_data *ha = vha->hw;
3629 request_t *pkt;
3630 int ret = 0;
3631 uint16_t temp;
3632
3633 ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha);
3634
3635 if (cmd)
3636 vha = cmd->vha;
3637
3638 pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL);
3639 if (pkt == NULL) {
3640 ql_dbg(ql_dbg_tgt, vha, 0xe050,
3641 "qla_target(%d): %s failed: unable to allocate "
3642 "request packet\n", vha->vp_idx, __func__);
3643 return -ENOMEM;
3644 }
3645
3646 if (cmd != NULL) {
3647 if (cmd->state < QLA_TGT_STATE_PROCESSED) {
3648 ql_dbg(ql_dbg_tgt, vha, 0xe051,
3649 "qla_target(%d): Terminating cmd %p with "
3650 "incorrect state %d\n", vha->vp_idx, cmd,
3651 cmd->state);
3652 } else
3653 ret = 1;
3654 }
3655
3656 qpair->tgt_counters.num_term_xchg_sent++;
3657 pkt->entry_count = 1;
3658 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
3659
3660 ctio24 = (struct ctio7_to_24xx *)pkt;
3661 ctio24->entry_type = CTIO_TYPE7;
3662 ctio24->nport_handle = cpu_to_le16(CTIO7_NHANDLE_UNRECOGNIZED);
3663 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3664 ctio24->vp_index = vha->vp_idx;
3665 ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
3666 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
3667 temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 |
3668 CTIO7_FLAGS_TERMINATE;
3669 ctio24->u.status1.flags = cpu_to_le16(temp);
3670 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3671 ctio24->u.status1.ox_id = cpu_to_le16(temp);
3672
3673
3674 wmb();
3675 if (qpair->reqq_start_iocbs)
3676 qpair->reqq_start_iocbs(qpair);
3677 else
3678 qla2x00_start_iocbs(vha, qpair->req);
3679 return ret;
3680}
3681
3682static void qlt_send_term_exchange(struct qla_qpair *qpair,
3683 struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked,
3684 int ul_abort)
3685{
3686 struct scsi_qla_host *vha;
3687 unsigned long flags = 0;
3688 int rc;
3689
3690
3691 if (cmd)
3692 vha = cmd->vha;
3693 else
3694 vha = qpair->vha;
3695
3696 if (ha_locked) {
3697 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3698 if (rc == -ENOMEM)
3699 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3700 goto done;
3701 }
3702 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3703 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3704 if (rc == -ENOMEM)
3705 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3706
3707done:
3708 if (cmd && !ul_abort && !cmd->aborted) {
3709 if (cmd->sg_mapped)
3710 qlt_unmap_sg(vha, cmd);
3711 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3712 }
3713
3714 if (!ha_locked)
3715 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3716
3717 return;
3718}
3719
3720static void qlt_init_term_exchange(struct scsi_qla_host *vha)
3721{
3722 struct list_head free_list;
3723 struct qla_tgt_cmd *cmd, *tcmd;
3724
3725 vha->hw->tgt.leak_exchg_thresh_hold =
3726 (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT;
3727
3728 cmd = tcmd = NULL;
3729 if (!list_empty(&vha->hw->tgt.q_full_list)) {
3730 INIT_LIST_HEAD(&free_list);
3731 list_splice_init(&vha->hw->tgt.q_full_list, &free_list);
3732
3733 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
3734 list_del(&cmd->cmd_list);
3735
3736
3737
3738 qlt_free_cmd(cmd);
3739 vha->hw->tgt.num_qfull_cmds_alloc--;
3740 }
3741 }
3742 vha->hw->tgt.num_qfull_cmds_dropped = 0;
3743}
3744
3745static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha)
3746{
3747 uint32_t total_leaked;
3748
3749 total_leaked = vha->hw->tgt.num_qfull_cmds_dropped;
3750
3751 if (vha->hw->tgt.leak_exchg_thresh_hold &&
3752 (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) {
3753
3754 ql_dbg(ql_dbg_tgt, vha, 0xe079,
3755 "Chip reset due to exchange starvation: %d/%d.\n",
3756 total_leaked, vha->hw->cur_fw_xcb_count);
3757
3758 if (IS_P3P_TYPE(vha->hw))
3759 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3760 else
3761 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3762 qla2xxx_wake_dpc(vha);
3763 }
3764
3765}
3766
3767int qlt_abort_cmd(struct qla_tgt_cmd *cmd)
3768{
3769 struct qla_tgt *tgt = cmd->tgt;
3770 struct scsi_qla_host *vha = tgt->vha;
3771 struct se_cmd *se_cmd = &cmd->se_cmd;
3772 unsigned long flags;
3773
3774 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
3775 "qla_target(%d): terminating exchange for aborted cmd=%p "
3776 "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd,
3777 se_cmd->tag);
3778
3779 spin_lock_irqsave(&cmd->cmd_lock, flags);
3780 if (cmd->aborted) {
3781 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3782
3783
3784
3785
3786
3787 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016,
3788 "multiple abort. %p transport_state %x, t_state %x, "
3789 "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state,
3790 cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags);
3791 return -EIO;
3792 }
3793 cmd->aborted = 1;
3794 cmd->trc_flags |= TRC_ABORT;
3795 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3796
3797 qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1);
3798 return 0;
3799}
3800EXPORT_SYMBOL(qlt_abort_cmd);
3801
3802void qlt_free_cmd(struct qla_tgt_cmd *cmd)
3803{
3804 struct fc_port *sess = cmd->sess;
3805
3806 ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074,
3807 "%s: se_cmd[%p] ox_id %04x\n",
3808 __func__, &cmd->se_cmd,
3809 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
3810
3811 BUG_ON(cmd->cmd_in_wq);
3812
3813 if (cmd->sg_mapped)
3814 qlt_unmap_sg(cmd->vha, cmd);
3815
3816 if (!cmd->q_full)
3817 qlt_decr_num_pend_cmds(cmd->vha);
3818
3819 BUG_ON(cmd->sg_mapped);
3820 cmd->jiffies_at_free = get_jiffies_64();
3821 if (unlikely(cmd->free_sg))
3822 kfree(cmd->sg);
3823
3824 if (!sess || !sess->se_sess) {
3825 WARN_ON(1);
3826 return;
3827 }
3828 cmd->jiffies_at_free = get_jiffies_64();
3829 cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
3830}
3831EXPORT_SYMBOL(qlt_free_cmd);
3832
3833
3834
3835
3836static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio,
3837 struct qla_tgt_cmd *cmd, uint32_t status)
3838{
3839 int term = 0;
3840 struct scsi_qla_host *vha = qpair->vha;
3841
3842 if (cmd->se_cmd.prot_op)
3843 ql_dbg(ql_dbg_tgt_dif, vha, 0xe013,
3844 "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] "
3845 "se_cmd=%p tag[%x] op %#x/%s",
3846 cmd->lba, cmd->lba,
3847 cmd->num_blks, &cmd->se_cmd,
3848 cmd->atio.u.isp24.exchange_addr,
3849 cmd->se_cmd.prot_op,
3850 prot_op_str(cmd->se_cmd.prot_op));
3851
3852 if (ctio != NULL) {
3853 struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
3854
3855 term = !(c->flags &
3856 cpu_to_le16(OF_TERM_EXCH));
3857 } else
3858 term = 1;
3859
3860 if (term)
3861 qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0);
3862
3863 return term;
3864}
3865
3866
3867
3868static void *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
3869 struct rsp_que *rsp, uint32_t handle, void *ctio)
3870{
3871 void *cmd = NULL;
3872 struct req_que *req;
3873 int qid = GET_QID(handle);
3874 uint32_t h = handle & ~QLA_TGT_HANDLE_MASK;
3875
3876 if (unlikely(h == QLA_TGT_SKIP_HANDLE))
3877 return NULL;
3878
3879 if (qid == rsp->req->id) {
3880 req = rsp->req;
3881 } else if (vha->hw->req_q_map[qid]) {
3882 ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a,
3883 "qla_target(%d): CTIO completion with different QID %d handle %x\n",
3884 vha->vp_idx, rsp->id, handle);
3885 req = vha->hw->req_q_map[qid];
3886 } else {
3887 return NULL;
3888 }
3889
3890 h &= QLA_CMD_HANDLE_MASK;
3891
3892 if (h != QLA_TGT_NULL_HANDLE) {
3893 if (unlikely(h >= req->num_outstanding_cmds)) {
3894 ql_dbg(ql_dbg_tgt, vha, 0xe052,
3895 "qla_target(%d): Wrong handle %x received\n",
3896 vha->vp_idx, handle);
3897 return NULL;
3898 }
3899
3900 cmd = req->outstanding_cmds[h];
3901 if (unlikely(cmd == NULL)) {
3902 ql_dbg(ql_dbg_async, vha, 0xe053,
3903 "qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n",
3904 vha->vp_idx, handle, req->id, rsp->id);
3905 return NULL;
3906 }
3907 req->outstanding_cmds[h] = NULL;
3908 } else if (ctio != NULL) {
3909
3910 ql_dbg(ql_dbg_tgt, vha, 0xe054,
3911 "qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
3912 "support NULL handles\n", vha->vp_idx);
3913 return NULL;
3914 }
3915
3916 return cmd;
3917}
3918
3919
3920
3921
3922static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
3923 struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio)
3924{
3925 struct qla_hw_data *ha = vha->hw;
3926 struct se_cmd *se_cmd;
3927 struct qla_tgt_cmd *cmd;
3928 struct qla_qpair *qpair = rsp->qpair;
3929
3930 if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
3931
3932 if (status != CTIO_SUCCESS) {
3933 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
3934 "Intermediate CTIO received"
3935 " (status %x)\n", status);
3936 }
3937 return;
3938 }
3939
3940 cmd = qlt_ctio_to_cmd(vha, rsp, handle, ctio);
3941 if (cmd == NULL)
3942 return;
3943
3944 se_cmd = &cmd->se_cmd;
3945 cmd->cmd_sent_to_fw = 0;
3946
3947 qlt_unmap_sg(vha, cmd);
3948
3949 if (unlikely(status != CTIO_SUCCESS)) {
3950 switch (status & 0xFFFF) {
3951 case CTIO_INVALID_RX_ID:
3952 if (printk_ratelimit())
3953 dev_info(&vha->hw->pdev->dev,
3954 "qla_target(%d): CTIO with INVALID_RX_ID ATIO attr %x CTIO Flags %x|%x\n",
3955 vha->vp_idx, cmd->atio.u.isp24.attr,
3956 ((cmd->ctio_flags >> 9) & 0xf),
3957 cmd->ctio_flags);
3958
3959 break;
3960 case CTIO_LIP_RESET:
3961 case CTIO_TARGET_RESET:
3962 case CTIO_ABORTED:
3963
3964 case CTIO_TIMEOUT:
3965
3966 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
3967 "qla_target(%d): CTIO with "
3968 "status %#x received, state %x, se_cmd %p, "
3969 "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
3970 "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx,
3971 status, cmd->state, se_cmd);
3972 break;
3973
3974 case CTIO_PORT_LOGGED_OUT:
3975 case CTIO_PORT_UNAVAILABLE:
3976 {
3977 int logged_out =
3978 (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT;
3979
3980 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
3981 "qla_target(%d): CTIO with %s status %x "
3982 "received (state %x, se_cmd %p)\n", vha->vp_idx,
3983 logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
3984 status, cmd->state, se_cmd);
3985
3986 if (logged_out && cmd->sess) {
3987
3988
3989
3990
3991 cmd->sess->send_els_logo = 1;
3992 ql_dbg(ql_dbg_disc, vha, 0x20f8,
3993 "%s %d %8phC post del sess\n",
3994 __func__, __LINE__, cmd->sess->port_name);
3995
3996 qlt_schedule_sess_for_deletion(cmd->sess);
3997 }
3998 break;
3999 }
4000 case CTIO_DIF_ERROR: {
4001 struct ctio_crc_from_fw *crc =
4002 (struct ctio_crc_from_fw *)ctio;
4003 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073,
4004 "qla_target(%d): CTIO with DIF_ERROR status %x "
4005 "received (state %x, ulp_cmd %p) actual_dif[0x%llx] "
4006 "expect_dif[0x%llx]\n",
4007 vha->vp_idx, status, cmd->state, se_cmd,
4008 *((u64 *)&crc->actual_dif[0]),
4009 *((u64 *)&crc->expected_dif[0]));
4010
4011 qlt_handle_dif_error(qpair, cmd, ctio);
4012 return;
4013 }
4014 default:
4015 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
4016 "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n",
4017 vha->vp_idx, status, cmd->state, se_cmd);
4018 break;
4019 }
4020
4021
4022
4023
4024
4025
4026
4027
4028 if ((cmd->state != QLA_TGT_STATE_NEED_DATA) &&
4029 (!cmd->aborted)) {
4030 cmd->trc_flags |= TRC_CTIO_ERR;
4031 if (qlt_term_ctio_exchange(qpair, ctio, cmd, status))
4032 return;
4033 }
4034 }
4035
4036 if (cmd->state == QLA_TGT_STATE_PROCESSED) {
4037 cmd->trc_flags |= TRC_CTIO_DONE;
4038 } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
4039 cmd->state = QLA_TGT_STATE_DATA_IN;
4040
4041 if (status == CTIO_SUCCESS)
4042 cmd->write_data_transferred = 1;
4043
4044 ha->tgt.tgt_ops->handle_data(cmd);
4045 return;
4046 } else if (cmd->aborted) {
4047 cmd->trc_flags |= TRC_CTIO_ABORTED;
4048 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
4049 "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
4050 } else {
4051 cmd->trc_flags |= TRC_CTIO_STRANGE;
4052 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
4053 "qla_target(%d): A command in state (%d) should "
4054 "not return a CTIO complete\n", vha->vp_idx, cmd->state);
4055 }
4056
4057 if (unlikely(status != CTIO_SUCCESS) &&
4058 !cmd->aborted) {
4059 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n");
4060 dump_stack();
4061 }
4062
4063 ha->tgt.tgt_ops->free_cmd(cmd);
4064}
4065
4066static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
4067 uint8_t task_codes)
4068{
4069 int fcp_task_attr;
4070
4071 switch (task_codes) {
4072 case ATIO_SIMPLE_QUEUE:
4073 fcp_task_attr = TCM_SIMPLE_TAG;
4074 break;
4075 case ATIO_HEAD_OF_QUEUE:
4076 fcp_task_attr = TCM_HEAD_TAG;
4077 break;
4078 case ATIO_ORDERED_QUEUE:
4079 fcp_task_attr = TCM_ORDERED_TAG;
4080 break;
4081 case ATIO_ACA_QUEUE:
4082 fcp_task_attr = TCM_ACA_TAG;
4083 break;
4084 case ATIO_UNTAGGED:
4085 fcp_task_attr = TCM_SIMPLE_TAG;
4086 break;
4087 default:
4088 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
4089 "qla_target: unknown task code %x, use ORDERED instead\n",
4090 task_codes);
4091 fcp_task_attr = TCM_ORDERED_TAG;
4092 break;
4093 }
4094
4095 return fcp_task_attr;
4096}
4097
4098
4099
4100
4101static void __qlt_do_work(struct qla_tgt_cmd *cmd)
4102{
4103 scsi_qla_host_t *vha = cmd->vha;
4104 struct qla_hw_data *ha = vha->hw;
4105 struct fc_port *sess = cmd->sess;
4106 struct atio_from_isp *atio = &cmd->atio;
4107 unsigned char *cdb;
4108 unsigned long flags;
4109 uint32_t data_length;
4110 int ret, fcp_task_attr, data_dir, bidi = 0;
4111 struct qla_qpair *qpair = cmd->qpair;
4112
4113 cmd->cmd_in_wq = 0;
4114 cmd->trc_flags |= TRC_DO_WORK;
4115
4116 if (cmd->aborted) {
4117 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082,
4118 "cmd with tag %u is aborted\n",
4119 cmd->atio.u.isp24.exchange_addr);
4120 goto out_term;
4121 }
4122
4123 spin_lock_init(&cmd->cmd_lock);
4124 cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
4125 cmd->se_cmd.tag = le32_to_cpu(atio->u.isp24.exchange_addr);
4126
4127 if (atio->u.isp24.fcp_cmnd.rddata &&
4128 atio->u.isp24.fcp_cmnd.wrdata) {
4129 bidi = 1;
4130 data_dir = DMA_TO_DEVICE;
4131 } else if (atio->u.isp24.fcp_cmnd.rddata)
4132 data_dir = DMA_FROM_DEVICE;
4133 else if (atio->u.isp24.fcp_cmnd.wrdata)
4134 data_dir = DMA_TO_DEVICE;
4135 else
4136 data_dir = DMA_NONE;
4137
4138 fcp_task_attr = qlt_get_fcp_task_attr(vha,
4139 atio->u.isp24.fcp_cmnd.task_attr);
4140 data_length = get_datalen_for_atio(atio);
4141
4142 ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length,
4143 fcp_task_attr, data_dir, bidi);
4144 if (ret != 0)
4145 goto out_term;
4146
4147
4148
4149 ha->tgt.tgt_ops->put_sess(sess);
4150 return;
4151
4152out_term:
4153 ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd);
4154
4155
4156
4157
4158 cmd->trc_flags |= TRC_DO_WORK_ERR;
4159 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
4160 qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0);
4161
4162 qlt_decr_num_pend_cmds(vha);
4163 cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
4164 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
4165
4166 ha->tgt.tgt_ops->put_sess(sess);
4167}
4168
4169static void qlt_do_work(struct work_struct *work)
4170{
4171 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
4172 scsi_qla_host_t *vha = cmd->vha;
4173 unsigned long flags;
4174
4175 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4176 list_del(&cmd->cmd_list);
4177 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4178
4179 __qlt_do_work(cmd);
4180}
4181
4182void qlt_clr_qp_table(struct scsi_qla_host *vha)
4183{
4184 unsigned long flags;
4185 struct qla_hw_data *ha = vha->hw;
4186 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4187 void *node;
4188 u64 key = 0;
4189
4190 ql_log(ql_log_info, vha, 0x706c,
4191 "User update Number of Active Qpairs %d\n",
4192 ha->tgt.num_act_qpairs);
4193
4194 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4195
4196 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
4197 btree_remove64(&tgt->lun_qpair_map, key);
4198
4199 ha->base_qpair->lun_cnt = 0;
4200 for (key = 0; key < ha->max_qpairs; key++)
4201 if (ha->queue_pair_map[key])
4202 ha->queue_pair_map[key]->lun_cnt = 0;
4203
4204 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4205}
4206
4207static void qlt_assign_qpair(struct scsi_qla_host *vha,
4208 struct qla_tgt_cmd *cmd)
4209{
4210 struct qla_qpair *qpair, *qp;
4211 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4212 struct qla_qpair_hint *h;
4213
4214 if (vha->flags.qpairs_available) {
4215 h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun);
4216 if (unlikely(!h)) {
4217
4218 int lcnt = 0, rc;
4219 struct scsi_qla_host *base_vha =
4220 pci_get_drvdata(vha->hw->pdev);
4221
4222 qpair = vha->hw->base_qpair;
4223 if (qpair->lun_cnt == 0) {
4224 qpair->lun_cnt++;
4225 h = qla_qpair_to_hint(tgt, qpair);
4226 BUG_ON(!h);
4227 rc = btree_insert64(&tgt->lun_qpair_map,
4228 cmd->unpacked_lun, h, GFP_ATOMIC);
4229 if (rc) {
4230 qpair->lun_cnt--;
4231 ql_log(ql_log_info, vha, 0xd037,
4232 "Unable to insert lun %llx into lun_qpair_map\n",
4233 cmd->unpacked_lun);
4234 }
4235 goto out;
4236 } else {
4237 lcnt = qpair->lun_cnt;
4238 }
4239
4240 h = NULL;
4241 list_for_each_entry(qp, &base_vha->qp_list,
4242 qp_list_elem) {
4243 if (qp->lun_cnt == 0) {
4244 qp->lun_cnt++;
4245 h = qla_qpair_to_hint(tgt, qp);
4246 BUG_ON(!h);
4247 rc = btree_insert64(&tgt->lun_qpair_map,
4248 cmd->unpacked_lun, h, GFP_ATOMIC);
4249 if (rc) {
4250 qp->lun_cnt--;
4251 ql_log(ql_log_info, vha, 0xd038,
4252 "Unable to insert lun %llx into lun_qpair_map\n",
4253 cmd->unpacked_lun);
4254 }
4255 qpair = qp;
4256 goto out;
4257 } else {
4258 if (qp->lun_cnt < lcnt) {
4259 lcnt = qp->lun_cnt;
4260 qpair = qp;
4261 continue;
4262 }
4263 }
4264 }
4265 BUG_ON(!qpair);
4266 qpair->lun_cnt++;
4267 h = qla_qpair_to_hint(tgt, qpair);
4268 BUG_ON(!h);
4269 rc = btree_insert64(&tgt->lun_qpair_map,
4270 cmd->unpacked_lun, h, GFP_ATOMIC);
4271 if (rc) {
4272 qpair->lun_cnt--;
4273 ql_log(ql_log_info, vha, 0xd039,
4274 "Unable to insert lun %llx into lun_qpair_map\n",
4275 cmd->unpacked_lun);
4276 }
4277 }
4278 } else {
4279 h = &tgt->qphints[0];
4280 }
4281out:
4282 cmd->qpair = h->qpair;
4283 cmd->se_cmd.cpuid = h->cpuid;
4284}
4285
4286static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
4287 struct fc_port *sess,
4288 struct atio_from_isp *atio)
4289{
4290 struct qla_tgt_cmd *cmd;
4291
4292 cmd = vha->hw->tgt.tgt_ops->get_cmd(sess);
4293 if (!cmd)
4294 return NULL;
4295
4296 cmd->cmd_type = TYPE_TGT_CMD;
4297 memcpy(&cmd->atio, atio, sizeof(*atio));
4298 INIT_LIST_HEAD(&cmd->sess_cmd_list);
4299 cmd->state = QLA_TGT_STATE_NEW;
4300 cmd->tgt = vha->vha_tgt.qla_tgt;
4301 qlt_incr_num_pend_cmds(vha);
4302 cmd->vha = vha;
4303 cmd->sess = sess;
4304 cmd->loop_id = sess->loop_id;
4305 cmd->conf_compl_supported = sess->conf_compl_supported;
4306
4307 cmd->trc_flags = 0;
4308 cmd->jiffies_at_alloc = get_jiffies_64();
4309
4310 cmd->unpacked_lun = scsilun_to_int(
4311 (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
4312 qlt_assign_qpair(vha, cmd);
4313 cmd->reset_count = vha->hw->base_qpair->chip_reset;
4314 cmd->vp_idx = vha->vp_idx;
4315
4316 return cmd;
4317}
4318
4319
4320static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
4321 struct atio_from_isp *atio)
4322{
4323 struct qla_hw_data *ha = vha->hw;
4324 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4325 struct fc_port *sess;
4326 struct qla_tgt_cmd *cmd;
4327 unsigned long flags;
4328 port_id_t id;
4329
4330 if (unlikely(tgt->tgt_stop)) {
4331 ql_dbg(ql_dbg_io, vha, 0x3061,
4332 "New command while device %p is shutting down\n", tgt);
4333 return -ENODEV;
4334 }
4335
4336 id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
4337 if (IS_SW_RESV_ADDR(id))
4338 return -EBUSY;
4339
4340 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
4341 if (unlikely(!sess))
4342 return -EFAULT;
4343
4344
4345
4346 if (sess->deleted) {
4347 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
4348 "New command while old session %p is being deleted\n",
4349 sess);
4350 return -EFAULT;
4351 }
4352
4353
4354
4355
4356 if (!kref_get_unless_zero(&sess->sess_kref)) {
4357 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
4358 "%s: kref_get fail, %8phC oxid %x \n",
4359 __func__, sess->port_name,
4360 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
4361 return -EFAULT;
4362 }
4363
4364 cmd = qlt_get_tag(vha, sess, atio);
4365 if (!cmd) {
4366 ql_dbg(ql_dbg_io, vha, 0x3062,
4367 "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
4368 ha->tgt.tgt_ops->put_sess(sess);
4369 return -EBUSY;
4370 }
4371
4372 cmd->cmd_in_wq = 1;
4373 cmd->trc_flags |= TRC_NEW_CMD;
4374
4375 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4376 list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);
4377 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4378
4379 INIT_WORK(&cmd->work, qlt_do_work);
4380 if (vha->flags.qpairs_available) {
4381 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work);
4382 } else if (ha->msix_count) {
4383 if (cmd->atio.u.isp24.fcp_cmnd.rddata)
4384 queue_work_on(smp_processor_id(), qla_tgt_wq,
4385 &cmd->work);
4386 else
4387 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq,
4388 &cmd->work);
4389 } else {
4390 queue_work(qla_tgt_wq, &cmd->work);
4391 }
4392
4393 return 0;
4394}
4395
4396
4397static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
4398 int fn, void *iocb, int flags)
4399{
4400 struct scsi_qla_host *vha = sess->vha;
4401 struct qla_hw_data *ha = vha->hw;
4402 struct qla_tgt_mgmt_cmd *mcmd;
4403 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4404 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
4405
4406 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4407 if (!mcmd) {
4408 ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009,
4409 "qla_target(%d): Allocation of management "
4410 "command failed, some commands and their data could "
4411 "leak\n", vha->vp_idx);
4412 return -ENOMEM;
4413 }
4414 memset(mcmd, 0, sizeof(*mcmd));
4415 mcmd->sess = sess;
4416
4417 if (iocb) {
4418 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4419 sizeof(mcmd->orig_iocb.imm_ntfy));
4420 }
4421 mcmd->tmr_func = fn;
4422 mcmd->flags = flags;
4423 mcmd->reset_count = ha->base_qpair->chip_reset;
4424 mcmd->qpair = h->qpair;
4425 mcmd->vha = vha;
4426 mcmd->se_cmd.cpuid = h->cpuid;
4427 mcmd->unpacked_lun = lun;
4428
4429 switch (fn) {
4430 case QLA_TGT_LUN_RESET:
4431 case QLA_TGT_CLEAR_TS:
4432 case QLA_TGT_ABORT_TS:
4433 abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id);
4434 fallthrough;
4435 case QLA_TGT_CLEAR_ACA:
4436 h = qlt_find_qphint(vha, mcmd->unpacked_lun);
4437 mcmd->qpair = h->qpair;
4438 mcmd->se_cmd.cpuid = h->cpuid;
4439 break;
4440
4441 case QLA_TGT_TARGET_RESET:
4442 case QLA_TGT_NEXUS_LOSS_SESS:
4443 case QLA_TGT_NEXUS_LOSS:
4444 case QLA_TGT_ABORT_ALL:
4445 default:
4446
4447 break;
4448 }
4449
4450 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
4451 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq,
4452 &mcmd->work);
4453
4454 return 0;
4455}
4456
4457
4458static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
4459{
4460 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4461 struct qla_hw_data *ha = vha->hw;
4462 struct fc_port *sess;
4463 u64 unpacked_lun;
4464 int fn;
4465 unsigned long flags;
4466
4467 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
4468
4469 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4470 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
4471 a->u.isp24.fcp_hdr.s_id);
4472 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4473
4474 unpacked_lun =
4475 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4476
4477 if (sess == NULL || sess->deleted)
4478 return -EFAULT;
4479
4480 return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
4481}
4482
4483
4484static int __qlt_abort_task(struct scsi_qla_host *vha,
4485 struct imm_ntfy_from_isp *iocb, struct fc_port *sess)
4486{
4487 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4488 struct qla_hw_data *ha = vha->hw;
4489 struct qla_tgt_mgmt_cmd *mcmd;
4490 u64 unpacked_lun;
4491 int rc;
4492
4493 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4494 if (mcmd == NULL) {
4495 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f,
4496 "qla_target(%d): %s: Allocation of ABORT cmd failed\n",
4497 vha->vp_idx, __func__);
4498 return -ENOMEM;
4499 }
4500 memset(mcmd, 0, sizeof(*mcmd));
4501
4502 mcmd->sess = sess;
4503 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4504 sizeof(mcmd->orig_iocb.imm_ntfy));
4505
4506 unpacked_lun =
4507 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4508 mcmd->reset_count = ha->base_qpair->chip_reset;
4509 mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK;
4510 mcmd->qpair = ha->base_qpair;
4511
4512 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func,
4513 le16_to_cpu(iocb->u.isp2x.seq_id));
4514 if (rc != 0) {
4515 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060,
4516 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
4517 vha->vp_idx, rc);
4518 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
4519 return -EFAULT;
4520 }
4521
4522 return 0;
4523}
4524
4525
4526static int qlt_abort_task(struct scsi_qla_host *vha,
4527 struct imm_ntfy_from_isp *iocb)
4528{
4529 struct qla_hw_data *ha = vha->hw;
4530 struct fc_port *sess;
4531 int loop_id;
4532 unsigned long flags;
4533
4534 loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb);
4535
4536 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4537 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
4538 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4539
4540 if (sess == NULL) {
4541 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025,
4542 "qla_target(%d): task abort for unexisting "
4543 "session\n", vha->vp_idx);
4544 return qlt_sched_sess_work(vha->vha_tgt.qla_tgt,
4545 QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb));
4546 }
4547
4548 return __qlt_abort_task(vha, iocb, sess);
4549}
4550
4551void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
4552{
4553 if (rc != MBS_COMMAND_COMPLETE) {
4554 ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093,
4555 "%s: se_sess %p / sess %p from"
4556 " port %8phC loop_id %#04x s_id %02x:%02x:%02x"
4557 " LOGO failed: %#x\n",
4558 __func__,
4559 fcport->se_sess,
4560 fcport,
4561 fcport->port_name, fcport->loop_id,
4562 fcport->d_id.b.domain, fcport->d_id.b.area,
4563 fcport->d_id.b.al_pa, rc);
4564 }
4565
4566 fcport->logout_completed = 1;
4567}
4568
4569
4570
4571
4572
4573
4574
4575
4576struct fc_port *
4577qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
4578 port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess)
4579{
4580 struct fc_port *sess = NULL, *other_sess;
4581 uint64_t other_wwn;
4582
4583 *conflict_sess = NULL;
4584
4585 list_for_each_entry(other_sess, &vha->vp_fcports, list) {
4586
4587 other_wwn = wwn_to_u64(other_sess->port_name);
4588
4589 if (wwn == other_wwn) {
4590 WARN_ON(sess);
4591 sess = other_sess;
4592 continue;
4593 }
4594
4595
4596 if (port_id.b24 == other_sess->d_id.b24) {
4597 if (loop_id != other_sess->loop_id) {
4598 ql_dbg(ql_dbg_disc, vha, 0x1000c,
4599 "Invalidating sess %p loop_id %d wwn %llx.\n",
4600 other_sess, other_sess->loop_id, other_wwn);
4601
4602
4603
4604
4605
4606
4607
4608 qlt_schedule_sess_for_deletion(other_sess);
4609 } else {
4610
4611
4612
4613
4614 ql_dbg(ql_dbg_disc, vha, 0xf01b,
4615 "Invalidating sess %p loop_id %d wwn %llx.\n",
4616 other_sess, other_sess->loop_id, other_wwn);
4617
4618 other_sess->keep_nport_handle = 1;
4619 if (other_sess->disc_state != DSC_DELETED)
4620 *conflict_sess = other_sess;
4621 qlt_schedule_sess_for_deletion(other_sess);
4622 }
4623 continue;
4624 }
4625
4626
4627 if ((loop_id == other_sess->loop_id) &&
4628 (loop_id != FC_NO_LOOP_ID)) {
4629 ql_dbg(ql_dbg_disc, vha, 0x1000d,
4630 "Invalidating sess %p loop_id %d wwn %llx.\n",
4631 other_sess, other_sess->loop_id, other_wwn);
4632
4633
4634
4635 qlt_schedule_sess_for_deletion(other_sess);
4636 }
4637 }
4638
4639 return sess;
4640}
4641
4642
4643static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
4644{
4645 struct qla_tgt_sess_op *op;
4646 struct qla_tgt_cmd *cmd;
4647 uint32_t key;
4648 int count = 0;
4649 unsigned long flags;
4650
4651 key = (((u32)s_id->b.domain << 16) |
4652 ((u32)s_id->b.area << 8) |
4653 ((u32)s_id->b.al_pa));
4654
4655 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4656 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
4657 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4658
4659 if (op_key == key) {
4660 op->aborted = true;
4661 count++;
4662 }
4663 }
4664
4665 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
4666 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4667
4668 if (op_key == key) {
4669 op->aborted = true;
4670 count++;
4671 }
4672 }
4673
4674 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
4675 uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
4676
4677 if (cmd_key == key) {
4678 cmd->aborted = 1;
4679 count++;
4680 }
4681 }
4682 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4683
4684 return count;
4685}
4686
4687static int qlt_handle_login(struct scsi_qla_host *vha,
4688 struct imm_ntfy_from_isp *iocb)
4689{
4690 struct fc_port *sess = NULL, *conflict_sess = NULL;
4691 uint64_t wwn;
4692 port_id_t port_id;
4693 uint16_t loop_id, wd3_lo;
4694 int res = 0;
4695 struct qlt_plogi_ack_t *pla;
4696 unsigned long flags;
4697
4698 lockdep_assert_held(&vha->hw->hardware_lock);
4699
4700 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4701
4702 port_id.b.domain = iocb->u.isp24.port_id[2];
4703 port_id.b.area = iocb->u.isp24.port_id[1];
4704 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4705 port_id.b.rsvd_1 = 0;
4706
4707 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4708
4709
4710 abort_cmds_for_s_id(vha, &port_id);
4711
4712 if (wwn) {
4713 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
4714 sess = qlt_find_sess_invalidate_other(vha, wwn,
4715 port_id, loop_id, &conflict_sess);
4716 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
4717 } else {
4718 ql_dbg(ql_dbg_disc, vha, 0xffff,
4719 "%s %d Term INOT due to WWN=0 lid=%d, NportID %06X ",
4720 __func__, __LINE__, loop_id, port_id.b24);
4721 qlt_send_term_imm_notif(vha, iocb, 1);
4722 goto out;
4723 }
4724
4725 if (IS_SW_RESV_ADDR(port_id)) {
4726 res = 1;
4727 goto out;
4728 }
4729
4730 pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
4731 if (!pla) {
4732 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
4733 "%s %d %8phC Term INOT due to mem alloc fail",
4734 __func__, __LINE__,
4735 iocb->u.isp24.port_name);
4736 qlt_send_term_imm_notif(vha, iocb, 1);
4737 goto out;
4738 }
4739
4740 if (conflict_sess) {
4741 conflict_sess->login_gen++;
4742 qlt_plogi_ack_link(vha, pla, conflict_sess,
4743 QLT_PLOGI_LINK_CONFLICT);
4744 }
4745
4746 if (!sess) {
4747 pla->ref_count++;
4748 ql_dbg(ql_dbg_disc, vha, 0xffff,
4749 "%s %d %8phC post new sess\n",
4750 __func__, __LINE__, iocb->u.isp24.port_name);
4751 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
4752 qla24xx_post_newsess_work(vha, &port_id,
4753 iocb->u.isp24.port_name,
4754 iocb->u.isp24.u.plogi.node_name,
4755 pla, 0);
4756 else
4757 qla24xx_post_newsess_work(vha, &port_id,
4758 iocb->u.isp24.port_name, NULL,
4759 pla, 0);
4760
4761 goto out;
4762 }
4763
4764 if (sess->disc_state == DSC_UPD_FCPORT) {
4765 u16 sec;
4766
4767
4768
4769
4770
4771
4772 sess->next_disc_state = DSC_DELETE_PEND;
4773 sec = jiffies_to_msecs(jiffies -
4774 sess->jiffies_at_registration) / 1000;
4775 if (sess->sec_since_registration < sec && sec &&
4776 !(sec % 5)) {
4777 sess->sec_since_registration = sec;
4778 ql_dbg(ql_dbg_disc, vha, 0xffff,
4779 "%s %8phC - Slow Rport registration (%d Sec)\n",
4780 __func__, sess->port_name, sec);
4781 }
4782
4783 if (!conflict_sess) {
4784 list_del(&pla->list);
4785 kmem_cache_free(qla_tgt_plogi_cachep, pla);
4786 }
4787
4788 qlt_send_term_imm_notif(vha, iocb, 1);
4789 goto out;
4790 }
4791
4792 qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
4793 sess->d_id = port_id;
4794 sess->login_gen++;
4795
4796 if (iocb->u.isp24.status_subcode == ELS_PRLI) {
4797 sess->fw_login_state = DSC_LS_PRLI_PEND;
4798 sess->local = 0;
4799 sess->loop_id = loop_id;
4800 sess->d_id = port_id;
4801 sess->fw_login_state = DSC_LS_PRLI_PEND;
4802 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4803
4804 if (wd3_lo & BIT_7)
4805 sess->conf_compl_supported = 1;
4806
4807 if ((wd3_lo & BIT_4) == 0)
4808 sess->port_type = FCT_INITIATOR;
4809 else
4810 sess->port_type = FCT_TARGET;
4811
4812 } else
4813 sess->fw_login_state = DSC_LS_PLOGI_PEND;
4814
4815
4816 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4817 "%s %d %8phC DS %d\n",
4818 __func__, __LINE__, sess->port_name, sess->disc_state);
4819
4820 switch (sess->disc_state) {
4821 case DSC_DELETED:
4822 case DSC_LOGIN_PEND:
4823 qlt_plogi_ack_unref(vha, pla);
4824 break;
4825
4826 default:
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845 sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
4846 (sess->d_id.b24 == port_id.b24));
4847
4848 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4849 "%s %d %8phC post del sess\n",
4850 __func__, __LINE__, sess->port_name);
4851
4852
4853 qlt_schedule_sess_for_deletion(sess);
4854 break;
4855 }
4856out:
4857 return res;
4858}
4859
4860
4861
4862
4863static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
4864 struct imm_ntfy_from_isp *iocb)
4865{
4866 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4867 struct qla_hw_data *ha = vha->hw;
4868 struct fc_port *sess = NULL, *conflict_sess = NULL;
4869 uint64_t wwn;
4870 port_id_t port_id;
4871 uint16_t loop_id;
4872 uint16_t wd3_lo;
4873 int res = 0;
4874 unsigned long flags;
4875
4876 lockdep_assert_held(&ha->hardware_lock);
4877
4878 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4879
4880 port_id.b.domain = iocb->u.isp24.port_id[2];
4881 port_id.b.area = iocb->u.isp24.port_id[1];
4882 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4883 port_id.b.rsvd_1 = 0;
4884
4885 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4886
4887 ql_dbg(ql_dbg_disc, vha, 0xf026,
4888 "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n",
4889 vha->vp_idx, iocb->u.isp24.port_id[2],
4890 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
4891 iocb->u.isp24.status_subcode, loop_id,
4892 iocb->u.isp24.port_name);
4893
4894
4895
4896
4897 switch (iocb->u.isp24.status_subcode) {
4898 case ELS_PLOGI:
4899 res = qlt_handle_login(vha, iocb);
4900 break;
4901
4902 case ELS_PRLI:
4903 if (N2N_TOPO(ha)) {
4904 sess = qla2x00_find_fcport_by_wwpn(vha,
4905 iocb->u.isp24.port_name, 1);
4906
4907 if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) {
4908 ql_dbg(ql_dbg_disc, vha, 0xffff,
4909 "%s %d %8phC Term PRLI due to PLOGI ACK not completed\n",
4910 __func__, __LINE__,
4911 iocb->u.isp24.port_name);
4912 qlt_send_term_imm_notif(vha, iocb, 1);
4913 break;
4914 }
4915
4916 res = qlt_handle_login(vha, iocb);
4917 break;
4918 }
4919
4920 if (IS_SW_RESV_ADDR(port_id)) {
4921 res = 1;
4922 break;
4923 }
4924
4925 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4926
4927 if (wwn) {
4928 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
4929 sess = qlt_find_sess_invalidate_other(vha, wwn, port_id,
4930 loop_id, &conflict_sess);
4931 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
4932 }
4933
4934 if (conflict_sess) {
4935 switch (conflict_sess->disc_state) {
4936 case DSC_DELETED:
4937 case DSC_DELETE_PEND:
4938 break;
4939 default:
4940 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
4941 "PRLI with conflicting sess %p port %8phC\n",
4942 conflict_sess, conflict_sess->port_name);
4943 conflict_sess->fw_login_state =
4944 DSC_LS_PORT_UNAVAIL;
4945 qlt_send_term_imm_notif(vha, iocb, 1);
4946 res = 0;
4947 break;
4948 }
4949 }
4950
4951 if (sess != NULL) {
4952 bool delete = false;
4953 int sec;
4954
4955 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
4956 switch (sess->fw_login_state) {
4957 case DSC_LS_PLOGI_PEND:
4958 case DSC_LS_PLOGI_COMP:
4959 case DSC_LS_PRLI_COMP:
4960 break;
4961 default:
4962 delete = true;
4963 break;
4964 }
4965
4966 switch (sess->disc_state) {
4967 case DSC_UPD_FCPORT:
4968 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
4969 flags);
4970
4971 sec = jiffies_to_msecs(jiffies -
4972 sess->jiffies_at_registration)/1000;
4973 if (sess->sec_since_registration < sec && sec &&
4974 !(sec % 5)) {
4975 sess->sec_since_registration = sec;
4976 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
4977 "%s %8phC : Slow Rport registration(%d Sec)\n",
4978 __func__, sess->port_name, sec);
4979 }
4980 qlt_send_term_imm_notif(vha, iocb, 1);
4981 return 0;
4982
4983 case DSC_LOGIN_PEND:
4984 case DSC_GPDB:
4985 case DSC_LOGIN_COMPLETE:
4986 case DSC_ADISC:
4987 delete = false;
4988 break;
4989 default:
4990 break;
4991 }
4992
4993 if (delete) {
4994 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
4995 flags);
4996
4997
4998
4999
5000
5001 ql_log(ql_log_warn, sess->vha, 0xf095,
5002 "sess %p PRLI received, before plogi ack.\n",
5003 sess);
5004 qlt_send_term_imm_notif(vha, iocb, 1);
5005 res = 0;
5006 break;
5007 }
5008
5009
5010
5011
5012
5013 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096,
5014 "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n",
5015 sess->loop_id, sess, iocb->u.isp24.nport_handle);
5016
5017 sess->local = 0;
5018 sess->loop_id = loop_id;
5019 sess->d_id = port_id;
5020 sess->fw_login_state = DSC_LS_PRLI_PEND;
5021
5022 if (wd3_lo & BIT_7)
5023 sess->conf_compl_supported = 1;
5024
5025 if ((wd3_lo & BIT_4) == 0)
5026 sess->port_type = FCT_INITIATOR;
5027 else
5028 sess->port_type = FCT_TARGET;
5029
5030 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
5031 }
5032 res = 1;
5033
5034
5035 if (ha->current_topology != ISP_CFG_F) {
5036 if (sess) {
5037 ql_dbg(ql_dbg_disc, vha, 0x20fa,
5038 "%s %d %8phC post nack\n",
5039 __func__, __LINE__, sess->port_name);
5040 qla24xx_post_nack_work(vha, sess, iocb,
5041 SRB_NACK_PRLI);
5042 res = 0;
5043 } else {
5044 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5045 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5046 qla2xxx_wake_dpc(vha);
5047 }
5048 } else {
5049 if (sess) {
5050 ql_dbg(ql_dbg_disc, vha, 0x20fb,
5051 "%s %d %8phC post nack\n",
5052 __func__, __LINE__, sess->port_name);
5053 qla24xx_post_nack_work(vha, sess, iocb,
5054 SRB_NACK_PRLI);
5055 res = 0;
5056 }
5057 }
5058 break;
5059
5060 case ELS_TPRLO:
5061 if (le16_to_cpu(iocb->u.isp24.flags) &
5062 NOTIFY24XX_FLAGS_GLOBAL_TPRLO) {
5063 loop_id = 0xFFFF;
5064 qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS);
5065 res = 1;
5066 break;
5067 }
5068 fallthrough;
5069 case ELS_LOGO:
5070 case ELS_PRLO:
5071 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5072 sess = qla2x00_find_fcport_by_loopid(vha, loop_id);
5073 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5074
5075 if (sess) {
5076 sess->login_gen++;
5077 sess->fw_login_state = DSC_LS_LOGO_PEND;
5078 sess->logo_ack_needed = 1;
5079 memcpy(sess->iocb, iocb, IOCB_SIZE);
5080 }
5081
5082 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5083
5084 ql_dbg(ql_dbg_disc, vha, 0x20fc,
5085 "%s: logo %llx res %d sess %p ",
5086 __func__, wwn, res, sess);
5087 if (res == 0) {
5088
5089
5090
5091
5092 BUG_ON(!sess);
5093 res = 0;
5094 } else {
5095
5096 if (sess) {
5097 qlt_schedule_sess_for_deletion(sess);
5098 res = 0;
5099 }
5100
5101 }
5102 break;
5103 case ELS_PDISC:
5104 case ELS_ADISC:
5105 {
5106 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5107
5108 if (tgt->link_reinit_iocb_pending) {
5109 qlt_send_notify_ack(ha->base_qpair,
5110 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5111 tgt->link_reinit_iocb_pending = 0;
5112 }
5113
5114 sess = qla2x00_find_fcport_by_wwpn(vha,
5115 iocb->u.isp24.port_name, 1);
5116 if (sess) {
5117 ql_dbg(ql_dbg_disc, vha, 0x20fd,
5118 "sess %p lid %d|%d DS %d LS %d\n",
5119 sess, sess->loop_id, loop_id,
5120 sess->disc_state, sess->fw_login_state);
5121 }
5122
5123 res = 1;
5124 break;
5125 }
5126
5127 case ELS_FLOGI:
5128 default:
5129 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061,
5130 "qla_target(%d): Unsupported ELS command %x "
5131 "received\n", vha->vp_idx, iocb->u.isp24.status_subcode);
5132 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5133 break;
5134 }
5135
5136 ql_dbg(ql_dbg_disc, vha, 0xf026,
5137 "qla_target(%d): Exit ELS opcode: 0x%02x res %d\n",
5138 vha->vp_idx, iocb->u.isp24.status_subcode, res);
5139
5140 return res;
5141}
5142
5143
5144
5145
5146static void qlt_handle_imm_notify(struct scsi_qla_host *vha,
5147 struct imm_ntfy_from_isp *iocb)
5148{
5149 struct qla_hw_data *ha = vha->hw;
5150 uint32_t add_flags = 0;
5151 int send_notify_ack = 1;
5152 uint16_t status;
5153
5154 lockdep_assert_held(&ha->hardware_lock);
5155
5156 status = le16_to_cpu(iocb->u.isp2x.status);
5157 switch (status) {
5158 case IMM_NTFY_LIP_RESET:
5159 {
5160 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032,
5161 "qla_target(%d): LIP reset (loop %#x), subcode %x\n",
5162 vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle),
5163 iocb->u.isp24.status_subcode);
5164
5165 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5166 send_notify_ack = 0;
5167 break;
5168 }
5169
5170 case IMM_NTFY_LIP_LINK_REINIT:
5171 {
5172 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5173
5174 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033,
5175 "qla_target(%d): LINK REINIT (loop %#x, "
5176 "subcode %x)\n", vha->vp_idx,
5177 le16_to_cpu(iocb->u.isp24.nport_handle),
5178 iocb->u.isp24.status_subcode);
5179 if (tgt->link_reinit_iocb_pending) {
5180 qlt_send_notify_ack(ha->base_qpair,
5181 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5182 }
5183 memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb));
5184 tgt->link_reinit_iocb_pending = 1;
5185
5186
5187
5188
5189 send_notify_ack = 0;
5190 break;
5191 }
5192
5193 case IMM_NTFY_PORT_LOGOUT:
5194 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034,
5195 "qla_target(%d): Port logout (loop "
5196 "%#x, subcode %x)\n", vha->vp_idx,
5197 le16_to_cpu(iocb->u.isp24.nport_handle),
5198 iocb->u.isp24.status_subcode);
5199
5200 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0)
5201 send_notify_ack = 0;
5202
5203 break;
5204
5205 case IMM_NTFY_GLBL_TPRLO:
5206 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035,
5207 "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status);
5208 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5209 send_notify_ack = 0;
5210
5211 break;
5212
5213 case IMM_NTFY_PORT_CONFIG:
5214 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036,
5215 "qla_target(%d): Port config changed (%x)\n", vha->vp_idx,
5216 status);
5217 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5218 send_notify_ack = 0;
5219
5220 break;
5221
5222 case IMM_NTFY_GLBL_LOGO:
5223 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
5224 "qla_target(%d): Link failure detected\n",
5225 vha->vp_idx);
5226
5227 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5228 send_notify_ack = 0;
5229 break;
5230
5231 case IMM_NTFY_IOCB_OVERFLOW:
5232 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b,
5233 "qla_target(%d): Cannot provide requested "
5234 "capability (IOCB overflowed the immediate notify "
5235 "resource count)\n", vha->vp_idx);
5236 break;
5237
5238 case IMM_NTFY_ABORT_TASK:
5239 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037,
5240 "qla_target(%d): Abort Task (S %08x I %#x -> "
5241 "L %#x)\n", vha->vp_idx,
5242 le16_to_cpu(iocb->u.isp2x.seq_id),
5243 GET_TARGET_ID(ha, (struct atio_from_isp *)iocb),
5244 le16_to_cpu(iocb->u.isp2x.lun));
5245 if (qlt_abort_task(vha, iocb) == 0)
5246 send_notify_ack = 0;
5247 break;
5248
5249 case IMM_NTFY_RESOURCE:
5250 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c,
5251 "qla_target(%d): Out of resources, host %ld\n",
5252 vha->vp_idx, vha->host_no);
5253 break;
5254
5255 case IMM_NTFY_MSG_RX:
5256 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038,
5257 "qla_target(%d): Immediate notify task %x\n",
5258 vha->vp_idx, iocb->u.isp2x.task_flags);
5259 break;
5260
5261 case IMM_NTFY_ELS:
5262 if (qlt_24xx_handle_els(vha, iocb) == 0)
5263 send_notify_ack = 0;
5264 break;
5265 default:
5266 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d,
5267 "qla_target(%d): Received unknown immediate "
5268 "notify status %x\n", vha->vp_idx, status);
5269 break;
5270 }
5271
5272 if (send_notify_ack)
5273 qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0,
5274 0, 0);
5275}
5276
5277
5278
5279
5280
5281static int __qlt_send_busy(struct qla_qpair *qpair,
5282 struct atio_from_isp *atio, uint16_t status)
5283{
5284 struct scsi_qla_host *vha = qpair->vha;
5285 struct ctio7_to_24xx *ctio24;
5286 struct qla_hw_data *ha = vha->hw;
5287 request_t *pkt;
5288 struct fc_port *sess = NULL;
5289 unsigned long flags;
5290 u16 temp;
5291 port_id_t id;
5292
5293 id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
5294
5295 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5296 sess = qla2x00_find_fcport_by_nportid(vha, &id, 1);
5297 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5298 if (!sess) {
5299 qlt_send_term_exchange(qpair, NULL, atio, 1, 0);
5300 return 0;
5301 }
5302
5303
5304 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
5305 if (!pkt) {
5306 ql_dbg(ql_dbg_io, vha, 0x3063,
5307 "qla_target(%d): %s failed: unable to allocate "
5308 "request packet", vha->vp_idx, __func__);
5309 return -ENOMEM;
5310 }
5311
5312 qpair->tgt_counters.num_q_full_sent++;
5313 pkt->entry_count = 1;
5314 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
5315
5316 ctio24 = (struct ctio7_to_24xx *)pkt;
5317 ctio24->entry_type = CTIO_TYPE7;
5318 ctio24->nport_handle = cpu_to_le16(sess->loop_id);
5319 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
5320 ctio24->vp_index = vha->vp_idx;
5321 ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
5322 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
5323 temp = (atio->u.isp24.attr << 9) |
5324 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
5325 CTIO7_FLAGS_DONT_RET_CTIO;
5326 ctio24->u.status1.flags = cpu_to_le16(temp);
5327
5328
5329
5330
5331 ctio24->u.status1.ox_id =
5332 cpu_to_le16(be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
5333 ctio24->u.status1.scsi_status = cpu_to_le16(status);
5334
5335 ctio24->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
5336
5337 if (ctio24->u.status1.residual != 0)
5338 ctio24->u.status1.scsi_status |= cpu_to_le16(SS_RESIDUAL_UNDER);
5339
5340
5341 wmb();
5342 if (qpair->reqq_start_iocbs)
5343 qpair->reqq_start_iocbs(qpair);
5344 else
5345 qla2x00_start_iocbs(vha, qpair->req);
5346 return 0;
5347}
5348
5349
5350
5351
5352
5353
5354static void
5355qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
5356 struct atio_from_isp *atio, uint16_t status, int qfull)
5357{
5358 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5359 struct qla_hw_data *ha = vha->hw;
5360 struct fc_port *sess;
5361 struct qla_tgt_cmd *cmd;
5362 unsigned long flags;
5363
5364 if (unlikely(tgt->tgt_stop)) {
5365 ql_dbg(ql_dbg_io, vha, 0x300a,
5366 "New command while device %p is shutting down\n", tgt);
5367 return;
5368 }
5369
5370 if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) {
5371 vha->hw->tgt.num_qfull_cmds_dropped++;
5372 if (vha->hw->tgt.num_qfull_cmds_dropped >
5373 vha->qla_stats.stat_max_qfull_cmds_dropped)
5374 vha->qla_stats.stat_max_qfull_cmds_dropped =
5375 vha->hw->tgt.num_qfull_cmds_dropped;
5376
5377 ql_dbg(ql_dbg_io, vha, 0x3068,
5378 "qla_target(%d): %s: QFull CMD dropped[%d]\n",
5379 vha->vp_idx, __func__,
5380 vha->hw->tgt.num_qfull_cmds_dropped);
5381
5382 qlt_chk_exch_leak_thresh_hold(vha);
5383 return;
5384 }
5385
5386 sess = ha->tgt.tgt_ops->find_sess_by_s_id
5387 (vha, atio->u.isp24.fcp_hdr.s_id);
5388 if (!sess)
5389 return;
5390
5391 cmd = ha->tgt.tgt_ops->get_cmd(sess);
5392 if (!cmd) {
5393 ql_dbg(ql_dbg_io, vha, 0x3009,
5394 "qla_target(%d): %s: Allocation of cmd failed\n",
5395 vha->vp_idx, __func__);
5396
5397 vha->hw->tgt.num_qfull_cmds_dropped++;
5398 if (vha->hw->tgt.num_qfull_cmds_dropped >
5399 vha->qla_stats.stat_max_qfull_cmds_dropped)
5400 vha->qla_stats.stat_max_qfull_cmds_dropped =
5401 vha->hw->tgt.num_qfull_cmds_dropped;
5402
5403 qlt_chk_exch_leak_thresh_hold(vha);
5404 return;
5405 }
5406
5407 qlt_incr_num_pend_cmds(vha);
5408 INIT_LIST_HEAD(&cmd->cmd_list);
5409 memcpy(&cmd->atio, atio, sizeof(*atio));
5410
5411 cmd->tgt = vha->vha_tgt.qla_tgt;
5412 cmd->vha = vha;
5413 cmd->reset_count = ha->base_qpair->chip_reset;
5414 cmd->q_full = 1;
5415 cmd->qpair = ha->base_qpair;
5416
5417 if (qfull) {
5418 cmd->q_full = 1;
5419
5420 cmd->state = status;
5421 } else
5422 cmd->term_exchg = 1;
5423
5424 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5425 list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list);
5426
5427 vha->hw->tgt.num_qfull_cmds_alloc++;
5428 if (vha->hw->tgt.num_qfull_cmds_alloc >
5429 vha->qla_stats.stat_max_qfull_cmds_alloc)
5430 vha->qla_stats.stat_max_qfull_cmds_alloc =
5431 vha->hw->tgt.num_qfull_cmds_alloc;
5432 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5433}
5434
5435int
5436qlt_free_qfull_cmds(struct qla_qpair *qpair)
5437{
5438 struct scsi_qla_host *vha = qpair->vha;
5439 struct qla_hw_data *ha = vha->hw;
5440 unsigned long flags;
5441 struct qla_tgt_cmd *cmd, *tcmd;
5442 struct list_head free_list, q_full_list;
5443 int rc = 0;
5444
5445 if (list_empty(&ha->tgt.q_full_list))
5446 return 0;
5447
5448 INIT_LIST_HEAD(&free_list);
5449 INIT_LIST_HEAD(&q_full_list);
5450
5451 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5452 if (list_empty(&ha->tgt.q_full_list)) {
5453 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5454 return 0;
5455 }
5456
5457 list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list);
5458 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5459
5460 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
5461 list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) {
5462 if (cmd->q_full)
5463
5464 rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state);
5465 else if (cmd->term_exchg)
5466 rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio);
5467
5468 if (rc == -ENOMEM)
5469 break;
5470
5471 if (cmd->q_full)
5472 ql_dbg(ql_dbg_io, vha, 0x3006,
5473 "%s: busy sent for ox_id[%04x]\n", __func__,
5474 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5475 else if (cmd->term_exchg)
5476 ql_dbg(ql_dbg_io, vha, 0x3007,
5477 "%s: Term exchg sent for ox_id[%04x]\n", __func__,
5478 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5479 else
5480 ql_dbg(ql_dbg_io, vha, 0x3008,
5481 "%s: Unexpected cmd in QFull list %p\n", __func__,
5482 cmd);
5483
5484 list_move_tail(&cmd->cmd_list, &free_list);
5485
5486
5487 vha->hw->tgt.num_qfull_cmds_alloc--;
5488 }
5489 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
5490
5491 cmd = NULL;
5492
5493 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
5494 list_del(&cmd->cmd_list);
5495
5496
5497
5498 qlt_free_cmd(cmd);
5499 }
5500
5501 if (!list_empty(&q_full_list)) {
5502 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5503 list_splice(&q_full_list, &vha->hw->tgt.q_full_list);
5504 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5505 }
5506
5507 return rc;
5508}
5509
5510static void
5511qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio,
5512 uint16_t status)
5513{
5514 int rc = 0;
5515 struct scsi_qla_host *vha = qpair->vha;
5516
5517 rc = __qlt_send_busy(qpair, atio, status);
5518 if (rc == -ENOMEM)
5519 qlt_alloc_qfull_cmd(vha, atio, status, 1);
5520}
5521
5522static int
5523qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
5524 struct atio_from_isp *atio, uint8_t ha_locked)
5525{
5526 struct qla_hw_data *ha = vha->hw;
5527 unsigned long flags;
5528
5529 if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
5530 return 0;
5531
5532 if (!ha_locked)
5533 spin_lock_irqsave(&ha->hardware_lock, flags);
5534 qlt_send_busy(qpair, atio, qla_sam_status);
5535 if (!ha_locked)
5536 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5537
5538 return 1;
5539}
5540
5541
5542
5543static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
5544 struct atio_from_isp *atio, uint8_t ha_locked)
5545{
5546 struct qla_hw_data *ha = vha->hw;
5547 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5548 int rc;
5549 unsigned long flags = 0;
5550
5551 if (unlikely(tgt == NULL)) {
5552 ql_dbg(ql_dbg_tgt, vha, 0x3064,
5553 "ATIO pkt, but no tgt (ha %p)", ha);
5554 return;
5555 }
5556
5557
5558
5559
5560
5561 tgt->atio_irq_cmd_count++;
5562
5563 switch (atio->u.raw.entry_type) {
5564 case ATIO_TYPE7:
5565 if (unlikely(atio->u.isp24.exchange_addr ==
5566 cpu_to_le32(ATIO_EXCHANGE_ADDRESS_UNKNOWN))) {
5567 ql_dbg(ql_dbg_io, vha, 0x3065,
5568 "qla_target(%d): ATIO_TYPE7 "
5569 "received with UNKNOWN exchange address, "
5570 "sending QUEUE_FULL\n", vha->vp_idx);
5571 if (!ha_locked)
5572 spin_lock_irqsave(&ha->hardware_lock, flags);
5573 qlt_send_busy(ha->base_qpair, atio, qla_sam_status);
5574 if (!ha_locked)
5575 spin_unlock_irqrestore(&ha->hardware_lock,
5576 flags);
5577 break;
5578 }
5579
5580 if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) {
5581 rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair,
5582 atio, ha_locked);
5583 if (rc != 0) {
5584 tgt->atio_irq_cmd_count--;
5585 return;
5586 }
5587 rc = qlt_handle_cmd_for_atio(vha, atio);
5588 } else {
5589 rc = qlt_handle_task_mgmt(vha, atio);
5590 }
5591 if (unlikely(rc != 0)) {
5592 if (!ha_locked)
5593 spin_lock_irqsave(&ha->hardware_lock, flags);
5594 switch (rc) {
5595 case -ENODEV:
5596 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5597 "qla_target: Unable to send command to target\n");
5598 break;
5599 case -EBADF:
5600 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5601 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5602 qlt_send_term_exchange(ha->base_qpair, NULL,
5603 atio, 1, 0);
5604 break;
5605 case -EBUSY:
5606 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5607 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5608 vha->vp_idx);
5609 qlt_send_busy(ha->base_qpair, atio,
5610 tc_sam_status);
5611 break;
5612 default:
5613 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5614 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5615 vha->vp_idx);
5616 qlt_send_busy(ha->base_qpair, atio,
5617 qla_sam_status);
5618 break;
5619 }
5620 if (!ha_locked)
5621 spin_unlock_irqrestore(&ha->hardware_lock,
5622 flags);
5623 }
5624 break;
5625
5626 case IMMED_NOTIFY_TYPE:
5627 {
5628 if (unlikely(atio->u.isp2x.entry_status != 0)) {
5629 ql_dbg(ql_dbg_tgt, vha, 0xe05b,
5630 "qla_target(%d): Received ATIO packet %x "
5631 "with error status %x\n", vha->vp_idx,
5632 atio->u.raw.entry_type,
5633 atio->u.isp2x.entry_status);
5634 break;
5635 }
5636 ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
5637
5638 if (!ha_locked)
5639 spin_lock_irqsave(&ha->hardware_lock, flags);
5640 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio);
5641 if (!ha_locked)
5642 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5643 break;
5644 }
5645
5646 default:
5647 ql_dbg(ql_dbg_tgt, vha, 0xe05c,
5648 "qla_target(%d): Received unknown ATIO atio "
5649 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
5650 break;
5651 }
5652
5653 tgt->atio_irq_cmd_count--;
5654}
5655
5656
5657
5658
5659
5660
5661static int qlt_chk_unresolv_exchg(struct scsi_qla_host *vha,
5662 struct qla_qpair *qpair, struct abts_resp_from_24xx_fw *entry)
5663{
5664 struct qla_hw_data *ha = vha->hw;
5665 int rc = 0;
5666
5667
5668
5669
5670
5671
5672
5673 if (qpair->retry_term_exchg_addr == entry->exchange_addr_to_abort &&
5674 qpair->retry_term_jiff == jiffies) {
5675
5676 qpair->retry_term_cnt++;
5677 if (qpair->retry_term_cnt >= 5) {
5678 rc = -EIO;
5679 qpair->retry_term_cnt = 0;
5680 ql_log(ql_log_warn, vha, 0xffff,
5681 "Unable to send ABTS Respond. Dumping firmware.\n");
5682 ql_dump_buffer(ql_dbg_tgt_mgt + ql_dbg_buffer,
5683 vha, 0xffff, (uint8_t *)entry, sizeof(*entry));
5684
5685 if (qpair == ha->base_qpair)
5686 ha->isp_ops->fw_dump(vha);
5687 else
5688 qla2xxx_dump_fw(vha);
5689
5690 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
5691 qla2xxx_wake_dpc(vha);
5692 }
5693 } else if (qpair->retry_term_jiff != jiffies) {
5694 qpair->retry_term_exchg_addr = entry->exchange_addr_to_abort;
5695 qpair->retry_term_cnt = 0;
5696 qpair->retry_term_jiff = jiffies;
5697 }
5698
5699 return rc;
5700}
5701
5702
5703static void qlt_handle_abts_completion(struct scsi_qla_host *vha,
5704 struct rsp_que *rsp, response_t *pkt)
5705{
5706 struct abts_resp_from_24xx_fw *entry =
5707 (struct abts_resp_from_24xx_fw *)pkt;
5708 u32 h = pkt->handle & ~QLA_TGT_HANDLE_MASK;
5709 struct qla_tgt_mgmt_cmd *mcmd;
5710 struct qla_hw_data *ha = vha->hw;
5711
5712 mcmd = qlt_ctio_to_cmd(vha, rsp, pkt->handle, pkt);
5713 if (mcmd == NULL && h != QLA_TGT_SKIP_HANDLE) {
5714 ql_dbg(ql_dbg_async, vha, 0xe064,
5715 "qla_target(%d): ABTS Comp without mcmd\n",
5716 vha->vp_idx);
5717 return;
5718 }
5719
5720 if (mcmd)
5721 vha = mcmd->vha;
5722 vha->vha_tgt.qla_tgt->abts_resp_expected--;
5723
5724 ql_dbg(ql_dbg_tgt, vha, 0xe038,
5725 "ABTS_RESP_24XX: compl_status %x\n",
5726 entry->compl_status);
5727
5728 if (le16_to_cpu(entry->compl_status) != ABTS_RESP_COMPL_SUCCESS) {
5729 if (le32_to_cpu(entry->error_subcode1) == 0x1E &&
5730 le32_to_cpu(entry->error_subcode2) == 0) {
5731 if (qlt_chk_unresolv_exchg(vha, rsp->qpair, entry)) {
5732 ha->tgt.tgt_ops->free_mcmd(mcmd);
5733 return;
5734 }
5735 qlt_24xx_retry_term_exchange(vha, rsp->qpair,
5736 pkt, mcmd);
5737 } else {
5738 ql_dbg(ql_dbg_tgt, vha, 0xe063,
5739 "qla_target(%d): ABTS_RESP_24XX failed %x (subcode %x:%x)",
5740 vha->vp_idx, entry->compl_status,
5741 entry->error_subcode1,
5742 entry->error_subcode2);
5743 ha->tgt.tgt_ops->free_mcmd(mcmd);
5744 }
5745 } else if (mcmd) {
5746 ha->tgt.tgt_ops->free_mcmd(mcmd);
5747 }
5748}
5749
5750
5751
5752static void qlt_response_pkt(struct scsi_qla_host *vha,
5753 struct rsp_que *rsp, response_t *pkt)
5754{
5755 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5756
5757 if (unlikely(tgt == NULL)) {
5758 ql_dbg(ql_dbg_tgt, vha, 0xe05d,
5759 "qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
5760 vha->vp_idx, pkt->entry_type, vha->hw);
5761 return;
5762 }
5763
5764
5765
5766
5767
5768
5769 switch (pkt->entry_type) {
5770 case CTIO_CRC2:
5771 case CTIO_TYPE7:
5772 {
5773 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
5774
5775 qlt_do_ctio_completion(vha, rsp, entry->handle,
5776 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5777 entry);
5778 break;
5779 }
5780
5781 case ACCEPT_TGT_IO_TYPE:
5782 {
5783 struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
5784 int rc;
5785
5786 if (atio->u.isp2x.status !=
5787 cpu_to_le16(ATIO_CDB_VALID)) {
5788 ql_dbg(ql_dbg_tgt, vha, 0xe05e,
5789 "qla_target(%d): ATIO with error "
5790 "status %x received\n", vha->vp_idx,
5791 le16_to_cpu(atio->u.isp2x.status));
5792 break;
5793 }
5794
5795 rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1);
5796 if (rc != 0)
5797 return;
5798
5799 rc = qlt_handle_cmd_for_atio(vha, atio);
5800 if (unlikely(rc != 0)) {
5801 switch (rc) {
5802 case -ENODEV:
5803 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5804 "qla_target: Unable to send command to target\n");
5805 break;
5806 case -EBADF:
5807 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5808 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5809 qlt_send_term_exchange(rsp->qpair, NULL,
5810 atio, 1, 0);
5811 break;
5812 case -EBUSY:
5813 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5814 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5815 vha->vp_idx);
5816 qlt_send_busy(rsp->qpair, atio,
5817 tc_sam_status);
5818 break;
5819 default:
5820 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5821 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5822 vha->vp_idx);
5823 qlt_send_busy(rsp->qpair, atio,
5824 qla_sam_status);
5825 break;
5826 }
5827 }
5828 }
5829 break;
5830
5831 case CONTINUE_TGT_IO_TYPE:
5832 {
5833 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5834
5835 qlt_do_ctio_completion(vha, rsp, entry->handle,
5836 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5837 entry);
5838 break;
5839 }
5840
5841 case CTIO_A64_TYPE:
5842 {
5843 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5844
5845 qlt_do_ctio_completion(vha, rsp, entry->handle,
5846 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5847 entry);
5848 break;
5849 }
5850
5851 case IMMED_NOTIFY_TYPE:
5852 ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n");
5853 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt);
5854 break;
5855
5856 case NOTIFY_ACK_TYPE:
5857 if (tgt->notify_ack_expected > 0) {
5858 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
5859
5860 ql_dbg(ql_dbg_tgt, vha, 0xe036,
5861 "NOTIFY_ACK seq %08x status %x\n",
5862 le16_to_cpu(entry->u.isp2x.seq_id),
5863 le16_to_cpu(entry->u.isp2x.status));
5864 tgt->notify_ack_expected--;
5865 if (entry->u.isp2x.status !=
5866 cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
5867 ql_dbg(ql_dbg_tgt, vha, 0xe061,
5868 "qla_target(%d): NOTIFY_ACK "
5869 "failed %x\n", vha->vp_idx,
5870 le16_to_cpu(entry->u.isp2x.status));
5871 }
5872 } else {
5873 ql_dbg(ql_dbg_tgt, vha, 0xe062,
5874 "qla_target(%d): Unexpected NOTIFY_ACK received\n",
5875 vha->vp_idx);
5876 }
5877 break;
5878
5879 case ABTS_RECV_24XX:
5880 ql_dbg(ql_dbg_tgt, vha, 0xe037,
5881 "ABTS_RECV_24XX: instance %d\n", vha->vp_idx);
5882 qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt);
5883 break;
5884
5885 case ABTS_RESP_24XX:
5886 if (tgt->abts_resp_expected > 0) {
5887 qlt_handle_abts_completion(vha, rsp, pkt);
5888 } else {
5889 ql_dbg(ql_dbg_tgt, vha, 0xe064,
5890 "qla_target(%d): Unexpected ABTS_RESP_24XX "
5891 "received\n", vha->vp_idx);
5892 }
5893 break;
5894
5895 default:
5896 ql_dbg(ql_dbg_tgt, vha, 0xe065,
5897 "qla_target(%d): Received unknown response pkt "
5898 "type %x\n", vha->vp_idx, pkt->entry_type);
5899 break;
5900 }
5901
5902}
5903
5904
5905
5906
5907void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
5908 uint16_t *mailbox)
5909{
5910 struct qla_hw_data *ha = vha->hw;
5911 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5912 int login_code;
5913
5914 if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
5915 return;
5916
5917 if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
5918 IS_QLA2100(ha))
5919 return;
5920
5921
5922
5923
5924
5925
5926 switch (code) {
5927 case MBA_RESET:
5928 case MBA_SYSTEM_ERR:
5929 case MBA_REQ_TRANSFER_ERR:
5930 case MBA_RSP_TRANSFER_ERR:
5931 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a,
5932 "qla_target(%d): System error async event %#x "
5933 "occurred", vha->vp_idx, code);
5934 break;
5935 case MBA_WAKEUP_THRES:
5936 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
5937 break;
5938
5939 case MBA_LOOP_UP:
5940 {
5941 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b,
5942 "qla_target(%d): Async LOOP_UP occurred "
5943 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx,
5944 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
5945 if (tgt->link_reinit_iocb_pending) {
5946 qlt_send_notify_ack(ha->base_qpair,
5947 &tgt->link_reinit_iocb,
5948 0, 0, 0, 0, 0, 0);
5949 tgt->link_reinit_iocb_pending = 0;
5950 }
5951 break;
5952 }
5953
5954 case MBA_LIP_OCCURRED:
5955 case MBA_LOOP_DOWN:
5956 case MBA_LIP_RESET:
5957 case MBA_RSCN_UPDATE:
5958 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c,
5959 "qla_target(%d): Async event %#x occurred "
5960 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code,
5961 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
5962 break;
5963
5964 case MBA_REJECTED_FCP_CMD:
5965 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017,
5966 "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)",
5967 vha->vp_idx,
5968 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
5969
5970 if (mailbox[3] == 1) {
5971
5972 vha->hw->exch_starvation++;
5973 if (vha->hw->exch_starvation > 5) {
5974 ql_log(ql_log_warn, vha, 0xd03a,
5975 "Exchange starvation-. Resetting RISC\n");
5976
5977 vha->hw->exch_starvation = 0;
5978 if (IS_P3P_TYPE(vha->hw))
5979 set_bit(FCOE_CTX_RESET_NEEDED,
5980 &vha->dpc_flags);
5981 else
5982 set_bit(ISP_ABORT_NEEDED,
5983 &vha->dpc_flags);
5984 qla2xxx_wake_dpc(vha);
5985 }
5986 }
5987 break;
5988
5989 case MBA_PORT_UPDATE:
5990 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d,
5991 "qla_target(%d): Port update async event %#x "
5992 "occurred: updating the ports database (m[0]=%x, m[1]=%x, "
5993 "m[2]=%x, m[3]=%x)", vha->vp_idx, code,
5994 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
5995
5996 login_code = mailbox[2];
5997 if (login_code == 0x4) {
5998 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e,
5999 "Async MB 2: Got PLOGI Complete\n");
6000 vha->hw->exch_starvation = 0;
6001 } else if (login_code == 0x7)
6002 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f,
6003 "Async MB 2: Port Logged Out\n");
6004 break;
6005 default:
6006 break;
6007 }
6008
6009}
6010
6011static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
6012 uint16_t loop_id)
6013{
6014 fc_port_t *fcport, *tfcp, *del;
6015 int rc;
6016 unsigned long flags;
6017 u8 newfcport = 0;
6018
6019 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6020 if (!fcport) {
6021 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
6022 "qla_target(%d): Allocation of tmp FC port failed",
6023 vha->vp_idx);
6024 return NULL;
6025 }
6026
6027 fcport->loop_id = loop_id;
6028
6029 rc = qla24xx_gpdb_wait(vha, fcport, 0);
6030 if (rc != QLA_SUCCESS) {
6031 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070,
6032 "qla_target(%d): Failed to retrieve fcport "
6033 "information -- get_port_database() returned %x "
6034 "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
6035 kfree(fcport);
6036 return NULL;
6037 }
6038
6039 del = NULL;
6040 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
6041 tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1);
6042
6043 if (tfcp) {
6044 tfcp->d_id = fcport->d_id;
6045 tfcp->port_type = fcport->port_type;
6046 tfcp->supported_classes = fcport->supported_classes;
6047 tfcp->flags |= fcport->flags;
6048 tfcp->scan_state = QLA_FCPORT_FOUND;
6049
6050 del = fcport;
6051 fcport = tfcp;
6052 } else {
6053 if (vha->hw->current_topology == ISP_CFG_F)
6054 fcport->flags |= FCF_FABRIC_DEVICE;
6055
6056 list_add_tail(&fcport->list, &vha->vp_fcports);
6057 if (!IS_SW_RESV_ADDR(fcport->d_id))
6058 vha->fcport_count++;
6059 fcport->login_gen++;
6060 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
6061 fcport->login_succ = 1;
6062 newfcport = 1;
6063 }
6064
6065 fcport->deleted = 0;
6066 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6067
6068 switch (vha->host->active_mode) {
6069 case MODE_INITIATOR:
6070 case MODE_DUAL:
6071 if (newfcport) {
6072 if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) {
6073 qla24xx_sched_upd_fcport(fcport);
6074 } else {
6075 ql_dbg(ql_dbg_disc, vha, 0x20ff,
6076 "%s %d %8phC post gpsc fcp_cnt %d\n",
6077 __func__, __LINE__, fcport->port_name, vha->fcport_count);
6078 qla24xx_post_gpsc_work(vha, fcport);
6079 }
6080 }
6081 break;
6082
6083 case MODE_TARGET:
6084 default:
6085 break;
6086 }
6087 if (del)
6088 qla2x00_free_fcport(del);
6089
6090 return fcport;
6091}
6092
6093
6094static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha,
6095 be_id_t s_id)
6096{
6097 struct fc_port *sess = NULL;
6098 fc_port_t *fcport = NULL;
6099 int rc, global_resets;
6100 uint16_t loop_id = 0;
6101
6102 if (s_id.domain == 0xFF && s_id.area == 0xFC) {
6103
6104
6105
6106
6107 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042,
6108 "Unable to find initiator with S_ID %x:%x:%x",
6109 s_id.domain, s_id.area, s_id.al_pa);
6110 return NULL;
6111 }
6112
6113 mutex_lock(&vha->vha_tgt.tgt_mutex);
6114
6115retry:
6116 global_resets =
6117 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
6118
6119 rc = qla24xx_get_loop_id(vha, s_id, &loop_id);
6120 if (rc != 0) {
6121 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6122
6123 ql_log(ql_log_info, vha, 0xf071,
6124 "qla_target(%d): Unable to find "
6125 "initiator with S_ID %x:%x:%x",
6126 vha->vp_idx, s_id.domain, s_id.area, s_id.al_pa);
6127
6128 if (rc == -ENOENT) {
6129 qlt_port_logo_t logo;
6130
6131 logo.id = be_to_port_id(s_id);
6132 logo.cmd_count = 1;
6133 qlt_send_first_logo(vha, &logo);
6134 }
6135
6136 return NULL;
6137 }
6138
6139 fcport = qlt_get_port_database(vha, loop_id);
6140 if (!fcport) {
6141 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6142 return NULL;
6143 }
6144
6145 if (global_resets !=
6146 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) {
6147 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043,
6148 "qla_target(%d): global reset during session discovery "
6149 "(counter was %d, new %d), retrying", vha->vp_idx,
6150 global_resets,
6151 atomic_read(&vha->vha_tgt.
6152 qla_tgt->tgt_global_resets_count));
6153 goto retry;
6154 }
6155
6156 sess = qlt_create_sess(vha, fcport, true);
6157
6158 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6159
6160 return sess;
6161}
6162
6163static void qlt_abort_work(struct qla_tgt *tgt,
6164 struct qla_tgt_sess_work_param *prm)
6165{
6166 struct scsi_qla_host *vha = tgt->vha;
6167 struct qla_hw_data *ha = vha->hw;
6168 struct fc_port *sess = NULL;
6169 unsigned long flags = 0, flags2 = 0;
6170 be_id_t s_id;
6171 int rc;
6172
6173 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6174
6175 if (tgt->tgt_stop)
6176 goto out_term2;
6177
6178 s_id = le_id_to_be(prm->abts.fcp_hdr_le.s_id);
6179
6180 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6181 if (!sess) {
6182 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6183
6184 sess = qlt_make_local_sess(vha, s_id);
6185
6186
6187 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6188 if (!sess)
6189 goto out_term2;
6190 } else {
6191 if (sess->deleted) {
6192 sess = NULL;
6193 goto out_term2;
6194 }
6195
6196 if (!kref_get_unless_zero(&sess->sess_kref)) {
6197 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c,
6198 "%s: kref_get fail %8phC \n",
6199 __func__, sess->port_name);
6200 sess = NULL;
6201 goto out_term2;
6202 }
6203 }
6204
6205 rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
6206 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6207
6208 ha->tgt.tgt_ops->put_sess(sess);
6209
6210 if (rc != 0)
6211 goto out_term;
6212 return;
6213
6214out_term2:
6215 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6216
6217out_term:
6218 spin_lock_irqsave(&ha->hardware_lock, flags);
6219 qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts,
6220 FCP_TMF_REJECTED, false);
6221 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6222}
6223
6224static void qlt_tmr_work(struct qla_tgt *tgt,
6225 struct qla_tgt_sess_work_param *prm)
6226{
6227 struct atio_from_isp *a = &prm->tm_iocb2;
6228 struct scsi_qla_host *vha = tgt->vha;
6229 struct qla_hw_data *ha = vha->hw;
6230 struct fc_port *sess;
6231 unsigned long flags;
6232 be_id_t s_id;
6233 int rc;
6234 u64 unpacked_lun;
6235 int fn;
6236 void *iocb;
6237
6238 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6239
6240 if (tgt->tgt_stop)
6241 goto out_term2;
6242
6243 s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id;
6244 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6245 if (!sess) {
6246 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6247
6248 sess = qlt_make_local_sess(vha, s_id);
6249
6250
6251 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6252 if (!sess)
6253 goto out_term2;
6254 } else {
6255 if (sess->deleted) {
6256 goto out_term2;
6257 }
6258
6259 if (!kref_get_unless_zero(&sess->sess_kref)) {
6260 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020,
6261 "%s: kref_get fail %8phC\n",
6262 __func__, sess->port_name);
6263 goto out_term2;
6264 }
6265 }
6266
6267 iocb = a;
6268 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
6269 unpacked_lun =
6270 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
6271
6272 rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
6273 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6274
6275 ha->tgt.tgt_ops->put_sess(sess);
6276
6277 if (rc != 0)
6278 goto out_term;
6279 return;
6280
6281out_term2:
6282 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6283out_term:
6284 qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0);
6285}
6286
6287static void qlt_sess_work_fn(struct work_struct *work)
6288{
6289 struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
6290 struct scsi_qla_host *vha = tgt->vha;
6291 unsigned long flags;
6292
6293 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt);
6294
6295 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6296 while (!list_empty(&tgt->sess_works_list)) {
6297 struct qla_tgt_sess_work_param *prm = list_entry(
6298 tgt->sess_works_list.next, typeof(*prm),
6299 sess_works_list_entry);
6300
6301
6302
6303
6304
6305 list_del(&prm->sess_works_list_entry);
6306
6307 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6308
6309 switch (prm->type) {
6310 case QLA_TGT_SESS_WORK_ABORT:
6311 qlt_abort_work(tgt, prm);
6312 break;
6313 case QLA_TGT_SESS_WORK_TM:
6314 qlt_tmr_work(tgt, prm);
6315 break;
6316 default:
6317 BUG_ON(1);
6318 break;
6319 }
6320
6321 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6322
6323 kfree(prm);
6324 }
6325 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6326}
6327
6328
6329int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
6330{
6331 struct qla_tgt *tgt;
6332 int rc, i;
6333 struct qla_qpair_hint *h;
6334
6335 if (!QLA_TGT_MODE_ENABLED())
6336 return 0;
6337
6338 if (!IS_TGT_MODE_CAPABLE(ha)) {
6339 ql_log(ql_log_warn, base_vha, 0xe070,
6340 "This adapter does not support target mode.\n");
6341 return 0;
6342 }
6343
6344 ql_dbg(ql_dbg_tgt, base_vha, 0xe03b,
6345 "Registering target for host %ld(%p).\n", base_vha->host_no, ha);
6346
6347 BUG_ON(base_vha->vha_tgt.qla_tgt != NULL);
6348
6349 tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL);
6350 if (!tgt) {
6351 ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
6352 "Unable to allocate struct qla_tgt\n");
6353 return -ENOMEM;
6354 }
6355
6356 tgt->qphints = kcalloc(ha->max_qpairs + 1,
6357 sizeof(struct qla_qpair_hint),
6358 GFP_KERNEL);
6359 if (!tgt->qphints) {
6360 kfree(tgt);
6361 ql_log(ql_log_warn, base_vha, 0x0197,
6362 "Unable to allocate qpair hints.\n");
6363 return -ENOMEM;
6364 }
6365
6366 if (!(base_vha->host->hostt->supported_mode & MODE_TARGET))
6367 base_vha->host->hostt->supported_mode |= MODE_TARGET;
6368
6369 rc = btree_init64(&tgt->lun_qpair_map);
6370 if (rc) {
6371 kfree(tgt->qphints);
6372 kfree(tgt);
6373 ql_log(ql_log_info, base_vha, 0x0198,
6374 "Unable to initialize lun_qpair_map btree\n");
6375 return -EIO;
6376 }
6377 h = &tgt->qphints[0];
6378 h->qpair = ha->base_qpair;
6379 INIT_LIST_HEAD(&h->hint_elem);
6380 h->cpuid = ha->base_qpair->cpuid;
6381 list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list);
6382
6383 for (i = 0; i < ha->max_qpairs; i++) {
6384 unsigned long flags;
6385
6386 struct qla_qpair *qpair = ha->queue_pair_map[i];
6387
6388 h = &tgt->qphints[i + 1];
6389 INIT_LIST_HEAD(&h->hint_elem);
6390 if (qpair) {
6391 h->qpair = qpair;
6392 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
6393 list_add_tail(&h->hint_elem, &qpair->hints_list);
6394 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
6395 h->cpuid = qpair->cpuid;
6396 }
6397 }
6398
6399 tgt->ha = ha;
6400 tgt->vha = base_vha;
6401 init_waitqueue_head(&tgt->waitQ);
6402 INIT_LIST_HEAD(&tgt->del_sess_list);
6403 spin_lock_init(&tgt->sess_work_lock);
6404 INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
6405 INIT_LIST_HEAD(&tgt->sess_works_list);
6406 atomic_set(&tgt->tgt_global_resets_count, 0);
6407
6408 base_vha->vha_tgt.qla_tgt = tgt;
6409
6410 ql_dbg(ql_dbg_tgt, base_vha, 0xe067,
6411 "qla_target(%d): using 64 Bit PCI addressing",
6412 base_vha->vp_idx);
6413
6414 tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3);
6415
6416 mutex_lock(&qla_tgt_mutex);
6417 list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist);
6418 mutex_unlock(&qla_tgt_mutex);
6419
6420 if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target)
6421 ha->tgt.tgt_ops->add_target(base_vha);
6422
6423 return 0;
6424}
6425
6426
6427int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
6428{
6429 if (!vha->vha_tgt.qla_tgt)
6430 return 0;
6431
6432 if (vha->fc_vport) {
6433 qlt_release(vha->vha_tgt.qla_tgt);
6434 return 0;
6435 }
6436
6437
6438 qlt_init_term_exchange(vha);
6439
6440 ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
6441 vha->host_no, ha);
6442 qlt_release(vha->vha_tgt.qla_tgt);
6443
6444 return 0;
6445}
6446
6447void qlt_remove_target_resources(struct qla_hw_data *ha)
6448{
6449 struct scsi_qla_host *node;
6450 u32 key = 0;
6451
6452 btree_for_each_safe32(&ha->tgt.host_map, key, node)
6453 btree_remove32(&ha->tgt.host_map, key);
6454
6455 btree_destroy32(&ha->tgt.host_map);
6456}
6457
6458static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn,
6459 unsigned char *b)
6460{
6461 pr_debug("qla2xxx HW vha->node_name: %8phC\n", vha->node_name);
6462 pr_debug("qla2xxx HW vha->port_name: %8phC\n", vha->port_name);
6463 put_unaligned_be64(wwpn, b);
6464 pr_debug("qla2xxx passed configfs WWPN: %8phC\n", b);
6465}
6466
6467
6468
6469
6470
6471
6472
6473
6474
6475
6476int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn,
6477 u64 npiv_wwpn, u64 npiv_wwnn,
6478 int (*callback)(struct scsi_qla_host *, void *, u64, u64))
6479{
6480 struct qla_tgt *tgt;
6481 struct scsi_qla_host *vha;
6482 struct qla_hw_data *ha;
6483 struct Scsi_Host *host;
6484 unsigned long flags;
6485 int rc;
6486 u8 b[WWN_SIZE];
6487
6488 mutex_lock(&qla_tgt_mutex);
6489 list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) {
6490 vha = tgt->vha;
6491 ha = vha->hw;
6492
6493 host = vha->host;
6494 if (!host)
6495 continue;
6496
6497 if (!(host->hostt->supported_mode & MODE_TARGET))
6498 continue;
6499
6500 if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
6501 continue;
6502
6503 spin_lock_irqsave(&ha->hardware_lock, flags);
6504 if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) {
6505 pr_debug("MODE_TARGET already active on qla2xxx(%d)\n",
6506 host->host_no);
6507 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6508 continue;
6509 }
6510 if (tgt->tgt_stop) {
6511 pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n",
6512 host->host_no);
6513 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6514 continue;
6515 }
6516 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6517
6518 if (!scsi_host_get(host)) {
6519 ql_dbg(ql_dbg_tgt, vha, 0xe068,
6520 "Unable to scsi_host_get() for"
6521 " qla2xxx scsi_host\n");
6522 continue;
6523 }
6524 qlt_lport_dump(vha, phys_wwpn, b);
6525
6526 if (memcmp(vha->port_name, b, WWN_SIZE)) {
6527 scsi_host_put(host);
6528 continue;
6529 }
6530 rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn);
6531 if (rc != 0)
6532 scsi_host_put(host);
6533
6534 mutex_unlock(&qla_tgt_mutex);
6535 return rc;
6536 }
6537 mutex_unlock(&qla_tgt_mutex);
6538
6539 return -ENODEV;
6540}
6541EXPORT_SYMBOL(qlt_lport_register);
6542
6543
6544
6545
6546
6547
6548void qlt_lport_deregister(struct scsi_qla_host *vha)
6549{
6550 struct qla_hw_data *ha = vha->hw;
6551 struct Scsi_Host *sh = vha->host;
6552
6553
6554
6555 vha->vha_tgt.target_lport_ptr = NULL;
6556 ha->tgt.tgt_ops = NULL;
6557
6558
6559
6560 scsi_host_put(sh);
6561}
6562EXPORT_SYMBOL(qlt_lport_deregister);
6563
6564
6565void qlt_set_mode(struct scsi_qla_host *vha)
6566{
6567 switch (vha->qlini_mode) {
6568 case QLA2XXX_INI_MODE_DISABLED:
6569 case QLA2XXX_INI_MODE_EXCLUSIVE:
6570 vha->host->active_mode = MODE_TARGET;
6571 break;
6572 case QLA2XXX_INI_MODE_ENABLED:
6573 vha->host->active_mode = MODE_INITIATOR;
6574 break;
6575 case QLA2XXX_INI_MODE_DUAL:
6576 vha->host->active_mode = MODE_DUAL;
6577 break;
6578 default:
6579 break;
6580 }
6581}
6582
6583
6584static void qlt_clear_mode(struct scsi_qla_host *vha)
6585{
6586 switch (vha->qlini_mode) {
6587 case QLA2XXX_INI_MODE_DISABLED:
6588 vha->host->active_mode = MODE_UNKNOWN;
6589 break;
6590 case QLA2XXX_INI_MODE_EXCLUSIVE:
6591 vha->host->active_mode = MODE_INITIATOR;
6592 break;
6593 case QLA2XXX_INI_MODE_ENABLED:
6594 case QLA2XXX_INI_MODE_DUAL:
6595 vha->host->active_mode = MODE_INITIATOR;
6596 break;
6597 default:
6598 break;
6599 }
6600}
6601
6602
6603
6604
6605
6606
6607void
6608qlt_enable_vha(struct scsi_qla_host *vha)
6609{
6610 struct qla_hw_data *ha = vha->hw;
6611 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6612 unsigned long flags;
6613 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6614
6615 if (!tgt) {
6616 ql_dbg(ql_dbg_tgt, vha, 0xe069,
6617 "Unable to locate qla_tgt pointer from"
6618 " struct qla_hw_data\n");
6619 dump_stack();
6620 return;
6621 }
6622 if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
6623 return;
6624
6625 if (ha->tgt.num_act_qpairs > ha->max_qpairs)
6626 ha->tgt.num_act_qpairs = ha->max_qpairs;
6627 spin_lock_irqsave(&ha->hardware_lock, flags);
6628 tgt->tgt_stopped = 0;
6629 qlt_set_mode(vha);
6630 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6631
6632 mutex_lock(&ha->optrom_mutex);
6633 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021,
6634 "%s.\n", __func__);
6635 if (vha->vp_idx) {
6636 qla24xx_disable_vp(vha);
6637 qla24xx_enable_vp(vha);
6638 } else {
6639 set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
6640 qla2xxx_wake_dpc(base_vha);
6641 WARN_ON_ONCE(qla2x00_wait_for_hba_online(base_vha) !=
6642 QLA_SUCCESS);
6643 }
6644 mutex_unlock(&ha->optrom_mutex);
6645}
6646EXPORT_SYMBOL(qlt_enable_vha);
6647
6648
6649
6650
6651
6652
6653static void qlt_disable_vha(struct scsi_qla_host *vha)
6654{
6655 struct qla_hw_data *ha = vha->hw;
6656 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6657 unsigned long flags;
6658
6659 if (!tgt) {
6660 ql_dbg(ql_dbg_tgt, vha, 0xe06a,
6661 "Unable to locate qla_tgt pointer from"
6662 " struct qla_hw_data\n");
6663 dump_stack();
6664 return;
6665 }
6666
6667 spin_lock_irqsave(&ha->hardware_lock, flags);
6668 qlt_clear_mode(vha);
6669 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6670
6671 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6672 qla2xxx_wake_dpc(vha);
6673
6674
6675
6676
6677
6678 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
6679 ql_dbg(ql_dbg_tgt, vha, 0xe081,
6680 "adapter is offline\n");
6681}
6682
6683
6684
6685
6686
6687
6688void
6689qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
6690{
6691 vha->vha_tgt.qla_tgt = NULL;
6692
6693 mutex_init(&vha->vha_tgt.tgt_mutex);
6694 mutex_init(&vha->vha_tgt.tgt_host_action_mutex);
6695
6696 qlt_clear_mode(vha);
6697
6698
6699
6700
6701
6702
6703
6704 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
6705
6706 qlt_add_target(ha, vha);
6707}
6708
6709u8
6710qlt_rff_id(struct scsi_qla_host *vha)
6711{
6712 u8 fc4_feature = 0;
6713
6714
6715
6716 if (qla_tgt_mode_enabled(vha)) {
6717 fc4_feature = BIT_0;
6718 } else if (qla_ini_mode_enabled(vha)) {
6719 fc4_feature = BIT_1;
6720 } else if (qla_dual_mode_enabled(vha))
6721 fc4_feature = BIT_0 | BIT_1;
6722
6723 return fc4_feature;
6724}
6725
6726
6727
6728
6729
6730
6731
6732
6733
6734
6735void
6736qlt_init_atio_q_entries(struct scsi_qla_host *vha)
6737{
6738 struct qla_hw_data *ha = vha->hw;
6739 uint16_t cnt;
6740 struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring;
6741
6742 if (qla_ini_mode_enabled(vha))
6743 return;
6744
6745 for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) {
6746 pkt->u.raw.signature = cpu_to_le32(ATIO_PROCESSED);
6747 pkt++;
6748 }
6749
6750}
6751
6752
6753
6754
6755
6756void
6757qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked)
6758{
6759 struct qla_hw_data *ha = vha->hw;
6760 struct atio_from_isp *pkt;
6761 int cnt, i;
6762
6763 if (!ha->flags.fw_started)
6764 return;
6765
6766 while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
6767 fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
6768 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6769 cnt = pkt->u.raw.entry_count;
6770
6771 if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
6772
6773
6774
6775
6776
6777 ql_log(ql_log_warn, vha, 0xd03c,
6778 "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
6779 &pkt->u.isp24.fcp_hdr.s_id,
6780 be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
6781 pkt->u.isp24.exchange_addr, pkt);
6782
6783 adjust_corrupted_atio(pkt);
6784 qlt_send_term_exchange(ha->base_qpair, NULL, pkt,
6785 ha_locked, 0);
6786 } else {
6787 qlt_24xx_atio_pkt_all_vps(vha,
6788 (struct atio_from_isp *)pkt, ha_locked);
6789 }
6790
6791 for (i = 0; i < cnt; i++) {
6792 ha->tgt.atio_ring_index++;
6793 if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) {
6794 ha->tgt.atio_ring_index = 0;
6795 ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
6796 } else
6797 ha->tgt.atio_ring_ptr++;
6798
6799 pkt->u.raw.signature = cpu_to_le32(ATIO_PROCESSED);
6800 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6801 }
6802 wmb();
6803 }
6804
6805
6806 wrt_reg_dword(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index);
6807}
6808
6809void
6810qlt_24xx_config_rings(struct scsi_qla_host *vha)
6811{
6812 struct qla_hw_data *ha = vha->hw;
6813 struct qla_msix_entry *msix = &ha->msix_entries[2];
6814 struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb;
6815
6816 if (!QLA_TGT_MODE_ENABLED())
6817 return;
6818
6819 wrt_reg_dword(ISP_ATIO_Q_IN(vha), 0);
6820 wrt_reg_dword(ISP_ATIO_Q_OUT(vha), 0);
6821 rd_reg_dword(ISP_ATIO_Q_OUT(vha));
6822
6823 if (ha->flags.msix_enabled) {
6824 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
6825 if (IS_QLA2071(ha)) {
6826
6827 icb->msix_atio = 0;
6828 icb->firmware_options_2 |= cpu_to_le32(BIT_26);
6829 } else {
6830 icb->msix_atio = cpu_to_le16(msix->entry);
6831 icb->firmware_options_2 &= cpu_to_le32(~BIT_26);
6832 }
6833 ql_dbg(ql_dbg_init, vha, 0xf072,
6834 "Registering ICB vector 0x%x for atio que.\n",
6835 msix->entry);
6836 }
6837 } else {
6838
6839 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
6840 icb->msix_atio = 0;
6841 icb->firmware_options_2 |= cpu_to_le32(BIT_26);
6842 ql_dbg(ql_dbg_init, vha, 0xf072,
6843 "%s: Use INTx for ATIOQ.\n", __func__);
6844 }
6845 }
6846}
6847
6848void
6849qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
6850{
6851 struct qla_hw_data *ha = vha->hw;
6852 u32 tmp;
6853
6854 if (!QLA_TGT_MODE_ENABLED())
6855 return;
6856
6857 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6858 if (!ha->tgt.saved_set) {
6859
6860 ha->tgt.saved_exchange_count = nv->exchange_count;
6861 ha->tgt.saved_firmware_options_1 =
6862 nv->firmware_options_1;
6863 ha->tgt.saved_firmware_options_2 =
6864 nv->firmware_options_2;
6865 ha->tgt.saved_firmware_options_3 =
6866 nv->firmware_options_3;
6867 ha->tgt.saved_set = 1;
6868 }
6869
6870 if (qla_tgt_mode_enabled(vha))
6871 nv->exchange_count = cpu_to_le16(0xFFFF);
6872 else
6873 nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
6874
6875
6876 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
6877
6878
6879 if (qla_tgt_mode_enabled(vha))
6880 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
6881
6882
6883 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6884
6885 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
6886 if (ql2xtgt_tape_enable)
6887
6888 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
6889 else
6890
6891 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
6892
6893
6894 nv->host_p &= cpu_to_le32(~BIT_10);
6895
6896
6897
6898
6899
6900
6901 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
6902
6903 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
6904
6905 if (IS_QLA25XX(ha)) {
6906
6907 tmp = ~(BIT_4|BIT_5|BIT_6);
6908 nv->firmware_options_2 &= cpu_to_le32(tmp);
6909 tmp = P2P << 4;
6910 nv->firmware_options_2 |= cpu_to_le32(tmp);
6911 }
6912 } else {
6913 if (ha->tgt.saved_set) {
6914 nv->exchange_count = ha->tgt.saved_exchange_count;
6915 nv->firmware_options_1 =
6916 ha->tgt.saved_firmware_options_1;
6917 nv->firmware_options_2 =
6918 ha->tgt.saved_firmware_options_2;
6919 nv->firmware_options_3 =
6920 ha->tgt.saved_firmware_options_3;
6921 }
6922 return;
6923 }
6924
6925 if (ha->base_qpair->enable_class_2) {
6926 if (vha->flags.init_done)
6927 fc_host_supported_classes(vha->host) =
6928 FC_COS_CLASS2 | FC_COS_CLASS3;
6929
6930 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
6931 } else {
6932 if (vha->flags.init_done)
6933 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
6934
6935 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
6936 }
6937}
6938
6939void
6940qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha,
6941 struct init_cb_24xx *icb)
6942{
6943 struct qla_hw_data *ha = vha->hw;
6944
6945 if (!QLA_TGT_MODE_ENABLED())
6946 return;
6947
6948 if (ha->tgt.node_name_set) {
6949 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
6950 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
6951 }
6952}
6953
6954void
6955qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
6956{
6957 struct qla_hw_data *ha = vha->hw;
6958 u32 tmp;
6959
6960 if (!QLA_TGT_MODE_ENABLED())
6961 return;
6962
6963 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6964 if (!ha->tgt.saved_set) {
6965
6966 ha->tgt.saved_exchange_count = nv->exchange_count;
6967 ha->tgt.saved_firmware_options_1 =
6968 nv->firmware_options_1;
6969 ha->tgt.saved_firmware_options_2 =
6970 nv->firmware_options_2;
6971 ha->tgt.saved_firmware_options_3 =
6972 nv->firmware_options_3;
6973 ha->tgt.saved_set = 1;
6974 }
6975
6976 if (qla_tgt_mode_enabled(vha))
6977 nv->exchange_count = cpu_to_le16(0xFFFF);
6978 else
6979 nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
6980
6981
6982 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
6983
6984
6985 if (qla_tgt_mode_enabled(vha))
6986 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
6987
6988 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6989
6990 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
6991
6992
6993
6994
6995
6996
6997 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
6998 if (ql2xtgt_tape_enable)
6999
7000 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7001 else
7002
7003 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
7004
7005
7006 nv->host_p &= cpu_to_le32(~BIT_10);
7007
7008 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
7009
7010
7011 tmp = ~(BIT_4|BIT_5|BIT_6);
7012 nv->firmware_options_2 &= cpu_to_le32(tmp);
7013 tmp = P2P << 4;
7014 nv->firmware_options_2 |= cpu_to_le32(tmp);
7015 } else {
7016 if (ha->tgt.saved_set) {
7017 nv->exchange_count = ha->tgt.saved_exchange_count;
7018 nv->firmware_options_1 =
7019 ha->tgt.saved_firmware_options_1;
7020 nv->firmware_options_2 =
7021 ha->tgt.saved_firmware_options_2;
7022 nv->firmware_options_3 =
7023 ha->tgt.saved_firmware_options_3;
7024 }
7025 return;
7026 }
7027
7028 if (ha->base_qpair->enable_class_2) {
7029 if (vha->flags.init_done)
7030 fc_host_supported_classes(vha->host) =
7031 FC_COS_CLASS2 | FC_COS_CLASS3;
7032
7033 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
7034 } else {
7035 if (vha->flags.init_done)
7036 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
7037
7038 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
7039 }
7040}
7041
7042void
7043qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha,
7044 struct init_cb_81xx *icb)
7045{
7046 struct qla_hw_data *ha = vha->hw;
7047
7048 if (!QLA_TGT_MODE_ENABLED())
7049 return;
7050
7051 if (ha->tgt.node_name_set) {
7052 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
7053 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
7054 }
7055}
7056
7057void
7058qlt_83xx_iospace_config(struct qla_hw_data *ha)
7059{
7060 if (!QLA_TGT_MODE_ENABLED())
7061 return;
7062
7063 ha->msix_count += 1;
7064}
7065
7066
7067void
7068qlt_modify_vp_config(struct scsi_qla_host *vha,
7069 struct vp_config_entry_24xx *vpmod)
7070{
7071
7072 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
7073 vpmod->options_idx1 &= ~BIT_5;
7074
7075
7076 if (qla_tgt_mode_enabled(vha))
7077 vpmod->options_idx1 &= ~BIT_4;
7078}
7079
7080void
7081qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha)
7082{
7083 int rc;
7084
7085 if (!QLA_TGT_MODE_ENABLED())
7086 return;
7087
7088 if ((ql2xenablemsix == 0) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
7089 IS_QLA28XX(ha)) {
7090 ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in;
7091 ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out;
7092 } else {
7093 ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in;
7094 ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out;
7095 }
7096
7097 mutex_init(&base_vha->vha_tgt.tgt_mutex);
7098 mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex);
7099
7100 INIT_LIST_HEAD(&base_vha->unknown_atio_list);
7101 INIT_DELAYED_WORK(&base_vha->unknown_atio_work,
7102 qlt_unknown_atio_work_fn);
7103
7104 qlt_clear_mode(base_vha);
7105
7106 rc = btree_init32(&ha->tgt.host_map);
7107 if (rc)
7108 ql_log(ql_log_info, base_vha, 0xd03d,
7109 "Unable to initialize ha->host_map btree\n");
7110
7111 qlt_update_vp_map(base_vha, SET_VP_IDX);
7112}
7113
7114irqreturn_t
7115qla83xx_msix_atio_q(int irq, void *dev_id)
7116{
7117 struct rsp_que *rsp;
7118 scsi_qla_host_t *vha;
7119 struct qla_hw_data *ha;
7120 unsigned long flags;
7121
7122 rsp = (struct rsp_que *) dev_id;
7123 ha = rsp->hw;
7124 vha = pci_get_drvdata(ha->pdev);
7125
7126 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7127
7128 qlt_24xx_process_atio_queue(vha, 0);
7129
7130 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7131
7132 return IRQ_HANDLED;
7133}
7134
7135static void
7136qlt_handle_abts_recv_work(struct work_struct *work)
7137{
7138 struct qla_tgt_sess_op *op = container_of(work,
7139 struct qla_tgt_sess_op, work);
7140 scsi_qla_host_t *vha = op->vha;
7141 struct qla_hw_data *ha = vha->hw;
7142 unsigned long flags;
7143
7144 if (qla2x00_reset_active(vha) ||
7145 (op->chip_reset != ha->base_qpair->chip_reset))
7146 return;
7147
7148 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7149 qlt_24xx_process_atio_queue(vha, 0);
7150 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7151
7152 spin_lock_irqsave(&ha->hardware_lock, flags);
7153 qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio);
7154 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7155
7156 kfree(op);
7157}
7158
7159void
7160qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp,
7161 response_t *pkt)
7162{
7163 struct qla_tgt_sess_op *op;
7164
7165 op = kzalloc(sizeof(*op), GFP_ATOMIC);
7166
7167 if (!op) {
7168
7169
7170
7171 qlt_response_pkt_all_vps(vha, rsp, pkt);
7172 return;
7173 }
7174
7175 memcpy(&op->atio, pkt, sizeof(*pkt));
7176 op->vha = vha;
7177 op->chip_reset = vha->hw->base_qpair->chip_reset;
7178 op->rsp = rsp;
7179 INIT_WORK(&op->work, qlt_handle_abts_recv_work);
7180 queue_work(qla_tgt_wq, &op->work);
7181 return;
7182}
7183
7184int
7185qlt_mem_alloc(struct qla_hw_data *ha)
7186{
7187 if (!QLA_TGT_MODE_ENABLED())
7188 return 0;
7189
7190 ha->tgt.tgt_vp_map = kcalloc(MAX_MULTI_ID_FABRIC,
7191 sizeof(struct qla_tgt_vp_map),
7192 GFP_KERNEL);
7193 if (!ha->tgt.tgt_vp_map)
7194 return -ENOMEM;
7195
7196 ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev,
7197 (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp),
7198 &ha->tgt.atio_dma, GFP_KERNEL);
7199 if (!ha->tgt.atio_ring) {
7200 kfree(ha->tgt.tgt_vp_map);
7201 return -ENOMEM;
7202 }
7203 return 0;
7204}
7205
7206void
7207qlt_mem_free(struct qla_hw_data *ha)
7208{
7209 if (!QLA_TGT_MODE_ENABLED())
7210 return;
7211
7212 if (ha->tgt.atio_ring) {
7213 dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) *
7214 sizeof(struct atio_from_isp), ha->tgt.atio_ring,
7215 ha->tgt.atio_dma);
7216 }
7217 ha->tgt.atio_ring = NULL;
7218 ha->tgt.atio_dma = 0;
7219 kfree(ha->tgt.tgt_vp_map);
7220 ha->tgt.tgt_vp_map = NULL;
7221}
7222
7223
7224void
7225qlt_update_vp_map(struct scsi_qla_host *vha, int cmd)
7226{
7227 void *slot;
7228 u32 key;
7229 int rc;
7230
7231 if (!QLA_TGT_MODE_ENABLED())
7232 return;
7233
7234 key = vha->d_id.b24;
7235
7236 switch (cmd) {
7237 case SET_VP_IDX:
7238 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha;
7239 break;
7240 case SET_AL_PA:
7241 slot = btree_lookup32(&vha->hw->tgt.host_map, key);
7242 if (!slot) {
7243 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018,
7244 "Save vha in host_map %p %06x\n", vha, key);
7245 rc = btree_insert32(&vha->hw->tgt.host_map,
7246 key, vha, GFP_ATOMIC);
7247 if (rc)
7248 ql_log(ql_log_info, vha, 0xd03e,
7249 "Unable to insert s_id into host_map: %06x\n",
7250 key);
7251 return;
7252 }
7253 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019,
7254 "replace existing vha in host_map %p %06x\n", vha, key);
7255 btree_update32(&vha->hw->tgt.host_map, key, vha);
7256 break;
7257 case RESET_VP_IDX:
7258 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL;
7259 break;
7260 case RESET_AL_PA:
7261 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a,
7262 "clear vha in host_map %p %06x\n", vha, key);
7263 slot = btree_lookup32(&vha->hw->tgt.host_map, key);
7264 if (slot)
7265 btree_remove32(&vha->hw->tgt.host_map, key);
7266 vha->d_id.b24 = 0;
7267 break;
7268 }
7269}
7270
7271void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id)
7272{
7273
7274 if (!vha->d_id.b24) {
7275 vha->d_id = id;
7276 qlt_update_vp_map(vha, SET_AL_PA);
7277 } else if (vha->d_id.b24 != id.b24) {
7278 qlt_update_vp_map(vha, RESET_AL_PA);
7279 vha->d_id = id;
7280 qlt_update_vp_map(vha, SET_AL_PA);
7281 }
7282}
7283
7284static int __init qlt_parse_ini_mode(void)
7285{
7286 if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0)
7287 ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
7288 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0)
7289 ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED;
7290 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0)
7291 ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED;
7292 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0)
7293 ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL;
7294 else
7295 return false;
7296
7297 return true;
7298}
7299
7300int __init qlt_init(void)
7301{
7302 int ret;
7303
7304 BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
7305 BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
7306
7307 if (!qlt_parse_ini_mode()) {
7308 ql_log(ql_log_fatal, NULL, 0xe06b,
7309 "qlt_parse_ini_mode() failed\n");
7310 return -EINVAL;
7311 }
7312
7313 if (!QLA_TGT_MODE_ENABLED())
7314 return 0;
7315
7316 qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep",
7317 sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct
7318 qla_tgt_mgmt_cmd), 0, NULL);
7319 if (!qla_tgt_mgmt_cmd_cachep) {
7320 ql_log(ql_log_fatal, NULL, 0xd04b,
7321 "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
7322 return -ENOMEM;
7323 }
7324
7325 qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep",
7326 sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t),
7327 0, NULL);
7328
7329 if (!qla_tgt_plogi_cachep) {
7330 ql_log(ql_log_fatal, NULL, 0xe06d,
7331 "kmem_cache_create for qla_tgt_plogi_cachep failed\n");
7332 ret = -ENOMEM;
7333 goto out_mgmt_cmd_cachep;
7334 }
7335
7336 qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab,
7337 mempool_free_slab, qla_tgt_mgmt_cmd_cachep);
7338 if (!qla_tgt_mgmt_cmd_mempool) {
7339 ql_log(ql_log_fatal, NULL, 0xe06e,
7340 "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
7341 ret = -ENOMEM;
7342 goto out_plogi_cachep;
7343 }
7344
7345 qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0);
7346 if (!qla_tgt_wq) {
7347 ql_log(ql_log_fatal, NULL, 0xe06f,
7348 "alloc_workqueue for qla_tgt_wq failed\n");
7349 ret = -ENOMEM;
7350 goto out_cmd_mempool;
7351 }
7352
7353
7354
7355 return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0;
7356
7357out_cmd_mempool:
7358 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7359out_plogi_cachep:
7360 kmem_cache_destroy(qla_tgt_plogi_cachep);
7361out_mgmt_cmd_cachep:
7362 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
7363 return ret;
7364}
7365
7366void qlt_exit(void)
7367{
7368 if (!QLA_TGT_MODE_ENABLED())
7369 return;
7370
7371 destroy_workqueue(qla_tgt_wq);
7372 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7373 kmem_cache_destroy(qla_tgt_plogi_cachep);
7374 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
7375}
7376