1 // SPDX-License-Identifier: GPL-2.0-only
3 * qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx
5 * based on qla2x00t.c code:
7 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
8 * Copyright (C) 2004 - 2005 Leonid Stoljar
9 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
10 * Copyright (C) 2006 - 2010 ID7 Ltd.
12 * Forward port and refactoring to modern qla2xxx and target/configfs
14 * Copyright (C) 2010-2013 Nicholas A. Bellinger <nab@kernel.org>
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>
32 #include "qla_target.h"
34 static int ql2xtgt_tape_enable;
35 module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR);
36 MODULE_PARM_DESC(ql2xtgt_tape_enable,
37 "Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
39 static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
40 module_param(qlini_mode, charp, S_IRUGO);
41 MODULE_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 "
46 "\"disabled\" - initiator mode will never be enabled; "
47 "\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
49 "\"enabled\" (default) - initiator mode will always stay enabled.");
51 static int ql_dm_tgt_ex_pct = 0;
52 module_param(ql_dm_tgt_ex_pct, int, S_IRUGO|S_IWUSR);
53 MODULE_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 "
59 module_param(ql2xuctrlirq, int, 0644);
60 MODULE_PARM_DESC(ql2xuctrlirq,
61 "User to control IRQ placement via smp_affinity."
62 "Valid with qlini_mode=disabled."
63 "1(default): enable");
65 int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
67 static int qla_sam_status = SAM_STAT_BUSY;
68 static int tc_sam_status = SAM_STAT_TASK_SET_FULL; /* target core */
71 * From scsi/fc/fc_fcp.h
73 enum fcp_resp_rsp_codes {
75 FCP_DATA_LEN_INVALID = 1,
76 FCP_CMND_FIELDS_INVALID = 2,
77 FCP_DATA_PARAM_MISMATCH = 3,
80 FCP_TMF_INVALID_LUN = 9,
84 * fc_pri_ta from scsi/fc/fc_fcp.h
86 #define FCP_PTA_SIMPLE 0 /* simple task attribute */
87 #define FCP_PTA_HEADQ 1 /* head of queue task attribute */
88 #define FCP_PTA_ORDERED 2 /* ordered task attribute */
89 #define FCP_PTA_ACA 4 /* auto. contingent allegiance */
90 #define FCP_PTA_MASK 7 /* mask for task attribute field */
91 #define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */
92 #define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */
95 * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which
96 * must be called under HW lock and could unlock/lock it inside.
97 * It isn't an issue, since in the current implementation on the time when
98 * those functions are called:
100 * - Either context is IRQ and only IRQ handler can modify HW data,
101 * including rings related fields,
103 * - Or access to target mode variables from struct qla_tgt doesn't
104 * cross those functions boundaries, except tgt_stop, which
105 * additionally protected by irq_cmd_count.
107 /* Predefs for callbacks handed to qla2xxx LLD */
108 static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
109 struct atio_from_isp *pkt, uint8_t);
110 static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp,
112 static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
113 int fn, void *iocb, int flags);
114 static 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);
116 static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
117 struct atio_from_isp *atio, uint16_t status, int qfull);
118 static void qlt_disable_vha(struct scsi_qla_host *vha);
119 static void qlt_clear_tgt_db(struct qla_tgt *tgt);
120 static 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);
124 static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
125 struct imm_ntfy_from_isp *imm, int ha_locked);
126 static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
127 fc_port_t *fcport, bool local);
128 void qlt_unreg_sess(struct fc_port *sess);
129 static void qlt_24xx_handle_abts(struct scsi_qla_host *,
130 struct abts_recv_from_24xx *);
131 static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *,
133 static int qlt_check_reserve_free_req(struct qla_qpair *qpair, uint32_t);
134 static inline uint32_t qlt_make_handle(struct qla_qpair *);
139 static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
140 struct kmem_cache *qla_tgt_plogi_cachep;
141 static mempool_t *qla_tgt_mgmt_cmd_mempool;
142 static struct workqueue_struct *qla_tgt_wq;
143 static DEFINE_MUTEX(qla_tgt_mutex);
144 static LIST_HEAD(qla_tgt_glist);
146 static const char *prot_op_str(u32 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";
160 /* This API intentionally takes dest as a parameter, rather than returning
161 * int value to avoid caller forgetting to issue wmb() after the store */
162 void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
164 scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
165 *dest = atomic_inc_return(&base_vha->generation_tick);
170 /* Might release hw lock, then reaquire!! */
171 static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
173 /* Send marker if required */
174 if (unlikely(vha->marker_needed != 0)) {
175 int rc = qla2x00_issue_marker(vha, vha_locked);
177 if (rc != QLA_SUCCESS) {
178 ql_dbg(ql_dbg_tgt, vha, 0xe03d,
179 "qla_target(%d): issue_marker() failed\n",
188 struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha,
191 struct scsi_qla_host *host;
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)
199 key = be_to_port_id(d_id).b24;
201 host = btree_lookup32(&vha->hw->tgt.host_map, key);
203 ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
204 "Unable to find host %06x\n", key);
210 struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha,
213 struct qla_hw_data *ha = vha->hw;
215 if (vha->vp_idx == vp_idx)
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;
225 static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha)
229 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
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);
237 static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha)
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);
247 static void qlt_queue_unknown_atio(scsi_qla_host_t *vha,
248 struct atio_from_isp *atio, uint8_t ha_locked)
250 struct qla_tgt_sess_op *u;
251 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
255 ql_dbg(ql_dbg_async, vha, 0x502c,
256 "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
261 u = kzalloc(sizeof(*u), GFP_ATOMIC);
266 memcpy(&u->atio, atio, sizeof(*atio));
267 INIT_LIST_HEAD(&u->cmd_list);
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);
273 schedule_delayed_work(&vha->unknown_atio_work, 1);
279 qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0);
283 static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
286 struct qla_tgt_sess_op *u, *t;
287 scsi_qla_host_t *host;
288 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
292 list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) {
294 ql_dbg(ql_dbg_async, vha, 0x502e,
295 "Freeing unknown %s %p, because of Abort\n",
297 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
298 &u->atio, ha_locked, 0);
302 host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
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",
311 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
312 &u->atio, ha_locked, 0);
314 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
315 "Reschedule u %p, vha %p, host %p\n", u, vha, host);
318 schedule_delayed_work(&vha->unknown_atio_work,
325 spin_lock_irqsave(&vha->cmd_list_lock, flags);
326 list_del(&u->cmd_list);
327 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
332 void qlt_unknown_atio_work_fn(struct work_struct *work)
334 struct scsi_qla_host *vha = container_of(to_delayed_work(work),
335 struct scsi_qla_host, unknown_atio_work);
337 qlt_try_to_dequeue_unknown_atios(vha, 0);
340 static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
341 struct atio_from_isp *atio, uint8_t ha_locked)
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));
348 switch (atio->u.raw.entry_type) {
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);
362 qlt_queue_unknown_atio(vha, atio, ha_locked);
365 if (unlikely(!list_empty(&vha->unknown_atio_list)))
366 qlt_try_to_dequeue_unknown_atios(vha, ha_locked);
368 qlt_24xx_atio_pkt(host, atio, ha_locked);
372 case IMMED_NOTIFY_TYPE:
374 struct scsi_qla_host *host = vha;
375 struct imm_ntfy_from_isp *entry =
376 (struct imm_ntfy_from_isp *)atio;
378 qlt_issue_marker(vha, ha_locked);
380 if ((entry->u.isp24.vp_index != 0xFF) &&
381 (entry->u.isp24.nport_handle != 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);
393 qlt_24xx_atio_pkt(host, atio, ha_locked);
397 case VP_RPT_ID_IOCB_TYPE:
398 qla24xx_report_id_acquisition(vha,
399 (struct vp_rpt_id_entry_24xx *)atio);
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,
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);
418 spin_lock_irqsave(&host->hw->hardware_lock, flags);
419 qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio);
421 spin_unlock_irqrestore(&host->hw->hardware_lock, flags);
425 /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */
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);
437 void qlt_response_pkt_all_vps(struct scsi_qla_host *vha,
438 struct rsp_que *rsp, response_t *pkt)
440 switch (pkt->entry_type) {
442 ql_dbg(ql_dbg_tgt, vha, 0xe073,
443 "qla_target(%d):%s: CRC2 Response pkt\n",
444 vha->vp_idx, __func__);
448 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
449 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
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);
458 qlt_response_pkt(host, rsp, pkt);
462 case IMMED_NOTIFY_TYPE:
464 struct scsi_qla_host *host;
465 struct imm_ntfy_from_isp *entry =
466 (struct imm_ntfy_from_isp *)pkt;
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);
476 qlt_response_pkt(host, rsp, pkt);
480 case NOTIFY_ACK_TYPE:
482 struct scsi_qla_host *host = vha;
483 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
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);
498 qlt_response_pkt(host, rsp, pkt);
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,
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);
515 qlt_response_pkt(host, rsp, pkt);
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,
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);
532 qlt_response_pkt(host, rsp, pkt);
536 qlt_response_pkt(vha, rsp, pkt);
543 * All qlt_plogi_ack_t operations are protected by hardware_lock
545 static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport,
546 struct imm_ntfy_from_isp *ntfy, int type)
548 struct qla_work_evt *e;
550 e = qla2x00_alloc_work(vha, QLA_EVT_NACK);
552 return QLA_FUNCTION_FAILED;
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);
560 static void qla2x00_async_nack_sp_done(srb_t *sp, int res)
562 struct scsi_qla_host *vha = sp->vha;
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);
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;
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;
583 sp->fcport->fw_login_state = DSC_LS_PRLI_COMP;
584 sp->fcport->deleted = 0;
585 sp->fcport->send_els_logo = 0;
587 if (!sp->fcport->login_succ &&
588 !IS_SW_RESV_ADDR(sp->fcport->d_id)) {
589 sp->fcport->login_succ = 1;
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);
596 sp->fcport->login_retry = 0;
597 qla2x00_set_fcport_disc_state(sp->fcport,
599 sp->fcport->deleted = 0;
600 sp->fcport->logout_on_delete = 1;
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);
610 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
615 int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport,
616 struct imm_ntfy_from_isp *ntfy, int type)
618 int rval = QLA_FUNCTION_FAILED;
622 fcport->flags |= FCF_ASYNC_SENT;
625 fcport->fw_login_state = DSC_LS_PLOGI_PEND;
629 fcport->fw_login_state = DSC_LS_PRLI_PEND;
634 fcport->fw_login_state = DSC_LS_LOGO_PEND;
639 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
646 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
647 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
649 sp->u.iocb_cmd.u.nack.ntfy = ntfy;
650 sp->done = qla2x00_async_nack_sp_done;
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);
656 rval = qla2x00_start_sp(sp);
657 if (rval != QLA_SUCCESS)
665 fcport->flags &= ~FCF_ASYNC_SENT;
669 void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
673 switch (e->u.nack.type) {
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);
682 ql_log(ql_log_info, vha, 0xd034,
683 "%s create sess success %p", __func__, t);
684 /* create sess has an extra kref */
685 vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport);
689 qla24xx_async_notify_ack(vha, e->u.nack.fcport,
690 (struct imm_ntfy_from_isp *)e->u.nack.iocb, e->u.nack.type);
693 void qla24xx_delete_sess_fn(struct work_struct *work)
695 fc_port_t *fcport = container_of(work, struct fc_port, del_work);
696 struct qla_hw_data *ha = fcport->vha->hw;
698 if (fcport->se_sess) {
699 ha->tgt.tgt_ops->shutdown_sess(fcport);
700 ha->tgt.tgt_ops->put_sess(fcport);
702 qlt_unreg_sess(fcport);
707 * Called from qla2x00_reg_remote_port()
709 void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
711 struct qla_hw_data *ha = vha->hw;
712 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
713 struct fc_port *sess = fcport;
716 if (!vha->hw->tgt.tgt_ops)
719 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
721 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
725 if (fcport->disc_state == DSC_DELETE_PEND) {
726 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
730 if (!sess->se_sess) {
731 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
733 mutex_lock(&vha->vha_tgt.tgt_mutex);
734 sess = qlt_create_sess(vha, fcport, false);
735 mutex_unlock(&vha->vha_tgt.tgt_mutex);
737 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
739 if (fcport->fw_login_state == DSC_LS_PRLI_COMP) {
740 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
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);
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);
757 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007,
758 "Reappeared sess %p\n", sess);
760 ha->tgt.tgt_ops->update_sess(sess, fcport->d_id,
762 (fcport->flags & FCF_CONF_COMP_SUPPORTED));
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);
772 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
774 ha->tgt.tgt_ops->put_sess(sess);
778 * This is a zero-base ref-counting solution, since hardware_lock
779 * guarantees that ref_count is not modified concurrently.
780 * Upon successful return content of iocb is undefined
782 static struct qlt_plogi_ack_t *
783 qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
784 struct imm_ntfy_from_isp *iocb)
786 struct qlt_plogi_ack_t *pla;
788 lockdep_assert_held(&vha->hw->hardware_lock);
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",
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));
802 pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC);
804 ql_dbg(ql_dbg_async, vha, 0x5088,
805 "qla_target(%d): Allocation of plogi_ack failed\n",
810 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
812 list_add_tail(&pla->list, &vha->plogi_ack_list);
817 void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
818 struct qlt_plogi_ack_t *pla)
820 struct imm_ntfy_from_isp *iocb = &pla->iocb;
823 fc_port_t *fcport = pla->fcport;
825 BUG_ON(!pla->ref_count);
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);
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;
844 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
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);
851 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI);
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;
860 list_del(&pla->list);
861 kmem_cache_free(qla_tgt_plogi_cachep, pla);
865 qlt_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)
868 struct imm_ntfy_from_isp *iocb = &pla->iocb;
869 /* Inc ref_count first because link might already be pointing at pla */
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);
880 if (link == QLT_PLOGI_LINK_CONFLICT) {
881 switch (sess->disc_state) {
883 case DSC_DELETE_PEND:
891 if (sess->plogi_link[link])
892 qlt_plogi_ack_unref(vha, sess->plogi_link[link]);
894 if (link == QLT_PLOGI_LINK_SAME_WWN)
897 sess->plogi_link[link] = pla;
901 /* These fields must be initialized by the caller */
904 * number of cmds dropped while we were waiting for
905 * initiator to ack LOGO initialize to 1 if LOGO is
906 * triggered by a command, otherwise, to 0
910 /* These fields are used by callee */
911 struct list_head list;
915 qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
917 qlt_port_logo_t *tmp;
920 mutex_lock(&vha->vha_tgt.tgt_mutex);
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);
930 list_add_tail(&logo->list, &vha->logo_list);
932 mutex_unlock(&vha->vha_tgt.tgt_mutex);
934 res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id);
936 mutex_lock(&vha->vha_tgt.tgt_mutex);
937 list_del(&logo->list);
938 mutex_unlock(&vha->vha_tgt.tgt_mutex);
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);
946 void qlt_free_session_done(struct work_struct *work)
948 struct fc_port *sess = container_of(work, struct fc_port,
950 struct qla_tgt *tgt = sess->tgt;
951 struct scsi_qla_host *vha = sess->vha;
952 struct qla_hw_data *ha = vha->hw;
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];
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);
967 if (!IS_SW_RESV_ADDR(sess->d_id)) {
968 qla2x00_mark_device_lost(vha, sess, 0);
970 if (sess->send_els_logo) {
971 qlt_port_logo_t logo;
973 logo.id = sess->d_id;
976 qlt_send_first_logo(vha, &logo);
977 sess->send_els_logo = 0;
980 if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
985 (own->iocb.u.isp24.status_subcode == ELS_PLOGI))) {
986 rc = qla2x00_post_async_logout_work(vha, sess,
988 if (rc != QLA_SUCCESS)
989 ql_log(ql_log_warn, vha, 0xf085,
990 "Schedule logo failed sess %p rc %d\n",
993 logout_started = true;
994 } else if (own && (own->iocb.u.isp24.status_subcode ==
995 ELS_PRLI) && ha->flags.rida_fmt2) {
996 rc = qla2x00_post_async_prlo_work(vha, sess,
998 if (rc != QLA_SUCCESS)
999 ql_log(ql_log_warn, vha, 0xf085,
1000 "Schedule PRLO failed sess %p rc %d\n",
1003 logout_started = true;
1005 } /* if sess->logout_on_delete */
1007 if (sess->nvme_flag & NVME_FLAG_REGISTERED &&
1008 !(sess->nvme_flag & NVME_FLAG_DELETING)) {
1009 sess->nvme_flag |= NVME_FLAG_DELETING;
1010 qla_nvme_unregister_remote_port(sess);
1015 * Release the target session for FC Nexus from fabric module code.
1017 if (sess->se_sess != NULL)
1018 ha->tgt.tgt_ops->free_session(sess);
1020 if (logout_started) {
1021 bool traced = false;
1024 while (!READ_ONCE(sess->logout_completed)) {
1026 ql_dbg(ql_dbg_disc, vha, 0xf086,
1027 "%s: waiting for sess %p logout\n",
1037 ql_dbg(ql_dbg_disc, vha, 0xf087,
1038 "%s: sess %p logout completed\n", __func__, sess);
1041 if (sess->logo_ack_needed) {
1042 sess->logo_ack_needed = 0;
1043 qla24xx_async_notify_ack(vha, sess,
1044 (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO);
1047 spin_lock_irqsave(&vha->work_lock, flags);
1048 sess->flags &= ~FCF_ASYNC_SENT;
1049 spin_unlock_irqrestore(&vha->work_lock, flags);
1051 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1052 if (sess->se_sess) {
1053 sess->se_sess = NULL;
1054 if (tgt && !IS_SW_RESV_ADDR(sess->d_id))
1058 qla2x00_set_fcport_disc_state(sess, DSC_DELETED);
1059 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1060 sess->deleted = QLA_SESS_DELETED;
1062 if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) {
1063 vha->fcport_count--;
1064 sess->login_succ = 0;
1067 qla2x00_clear_loop_id(sess);
1069 if (sess->conflict) {
1070 sess->conflict->login_pause = 0;
1071 sess->conflict = NULL;
1072 if (!test_bit(UNLOADING, &vha->dpc_flags))
1073 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1077 struct qlt_plogi_ack_t *con =
1078 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
1079 struct imm_ntfy_from_isp *iocb;
1081 own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
1085 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099,
1086 "se_sess %p / sess %p port %8phC is gone,"
1087 " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
1088 sess->se_sess, sess, sess->port_name,
1089 own ? "releasing own PLOGI" : "no own PLOGI pending",
1090 own ? own->ref_count : -1,
1091 iocb->u.isp24.port_name, con->ref_count);
1092 qlt_plogi_ack_unref(vha, con);
1093 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
1095 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a,
1096 "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n",
1097 sess->se_sess, sess, sess->port_name,
1098 own ? "releasing own PLOGI" :
1099 "no own PLOGI pending",
1100 own ? own->ref_count : -1);
1104 sess->fw_login_state = DSC_LS_PLOGI_PEND;
1105 qlt_plogi_ack_unref(vha, own);
1106 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
1110 sess->explicit_logout = 0;
1111 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1112 sess->free_pending = 0;
1114 ql_dbg(ql_dbg_disc, vha, 0xf001,
1115 "Unregistration of sess %p %8phC finished fcp_cnt %d\n",
1116 sess, sess->port_name, vha->fcport_count);
1118 if (tgt && (tgt->sess_count == 0))
1119 wake_up_all(&tgt->waitQ);
1121 if (!test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags) &&
1122 !(vha->vp_idx && test_bit(VPORT_DELETE, &vha->dpc_flags)) &&
1123 (!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) {
1124 switch (vha->host->active_mode) {
1125 case MODE_INITIATOR:
1127 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1128 qla2xxx_wake_dpc(vha);
1137 if (vha->fcport_count == 0)
1138 wake_up_all(&vha->fcport_waitQ);
1141 /* ha->tgt.sess_lock supposed to be held on entry */
1142 void qlt_unreg_sess(struct fc_port *sess)
1144 struct scsi_qla_host *vha = sess->vha;
1145 unsigned long flags;
1147 ql_dbg(ql_dbg_disc, sess->vha, 0x210a,
1148 "%s sess %p for deletion %8phC\n",
1149 __func__, sess, sess->port_name);
1151 spin_lock_irqsave(&sess->vha->work_lock, flags);
1152 if (sess->free_pending) {
1153 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1156 sess->free_pending = 1;
1158 * Use FCF_ASYNC_SENT flag to block other cmds used in sess
1159 * management from being sent.
1161 sess->flags |= FCF_ASYNC_SENT;
1162 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1165 vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
1167 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1168 qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
1169 sess->last_rscn_gen = sess->rscn_gen;
1170 sess->last_login_gen = sess->login_gen;
1172 queue_work(sess->vha->hw->wq, &sess->free_work);
1174 EXPORT_SYMBOL(qlt_unreg_sess);
1176 static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
1178 struct qla_hw_data *ha = vha->hw;
1179 struct fc_port *sess = NULL;
1182 struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
1183 unsigned long flags;
1185 loop_id = le16_to_cpu(n->u.isp24.nport_handle);
1186 if (loop_id == 0xFFFF) {
1188 atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
1189 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1190 qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
1191 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1193 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1194 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
1195 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1198 ql_dbg(ql_dbg_tgt, vha, 0xe000,
1199 "Using sess for qla_tgt_reset: %p\n", sess);
1205 ql_dbg(ql_dbg_tgt, vha, 0xe047,
1206 "scsi(%ld): resetting (session %p from port %8phC mcmd %x, "
1207 "loop_id %d)\n", vha->host_no, sess, sess->port_name,
1210 return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK);
1213 static void qla24xx_chk_fcp_state(struct fc_port *sess)
1215 if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) {
1216 sess->logout_on_delete = 0;
1217 sess->logo_ack_needed = 0;
1218 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1222 void qlt_schedule_sess_for_deletion(struct fc_port *sess)
1224 struct qla_tgt *tgt = sess->tgt;
1225 unsigned long flags;
1228 switch (sess->disc_state) {
1229 case DSC_DELETE_PEND:
1232 if (tgt && tgt->tgt_stop && (tgt->sess_count == 0))
1233 wake_up_all(&tgt->waitQ);
1234 if (sess->vha->fcport_count == 0)
1235 wake_up_all(&sess->vha->fcport_waitQ);
1237 if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
1238 !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT])
1241 case DSC_UPD_FCPORT:
1243 * This port is not done reporting to upper layer.
1246 sess->next_disc_state = DSC_DELETE_PEND;
1247 sec = jiffies_to_msecs(jiffies -
1248 sess->jiffies_at_registration)/1000;
1249 if (sess->sec_since_registration < sec && sec && !(sec % 5)) {
1250 sess->sec_since_registration = sec;
1251 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
1252 "%s %8phC : Slow Rport registration(%d Sec)\n",
1253 __func__, sess->port_name, sec);
1260 spin_lock_irqsave(&sess->vha->work_lock, flags);
1261 if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
1262 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1265 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1266 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1268 sess->prli_pend_timer = 0;
1269 qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
1271 qla24xx_chk_fcp_state(sess);
1273 ql_dbg(ql_dbg_tgt, sess->vha, 0xe001,
1274 "Scheduling sess %p for deletion %8phC\n",
1275 sess, sess->port_name);
1277 WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work));
1280 static void qlt_clear_tgt_db(struct qla_tgt *tgt)
1282 struct fc_port *sess;
1283 scsi_qla_host_t *vha = tgt->vha;
1285 list_for_each_entry(sess, &vha->vp_fcports, list) {
1287 qlt_schedule_sess_for_deletion(sess);
1290 /* At this point tgt could be already dead */
1293 static int qla24xx_get_loop_id(struct scsi_qla_host *vha, be_id_t s_id,
1296 struct qla_hw_data *ha = vha->hw;
1297 dma_addr_t gid_list_dma;
1298 struct gid_list_info *gid_list, *gid;
1302 gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1303 &gid_list_dma, GFP_KERNEL);
1305 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044,
1306 "qla_target(%d): DMA Alloc failed of %u\n",
1307 vha->vp_idx, qla2x00_gid_list_size(ha));
1311 /* Get list of logged in devices */
1312 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries);
1313 if (rc != QLA_SUCCESS) {
1314 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045,
1315 "qla_target(%d): get_id_list() failed: %x\n",
1318 goto out_free_id_list;
1323 for (i = 0; i < entries; i++) {
1324 if (gid->al_pa == s_id.al_pa &&
1325 gid->area == s_id.area &&
1326 gid->domain == s_id.domain) {
1327 *loop_id = le16_to_cpu(gid->loop_id);
1331 gid = (void *)gid + ha->gid_list_info_size;
1335 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1336 gid_list, gid_list_dma);
1341 * Adds an extra ref to allow to drop hw lock after adding sess to the list.
1342 * Caller must put it.
1344 static struct fc_port *qlt_create_sess(
1345 struct scsi_qla_host *vha,
1349 struct qla_hw_data *ha = vha->hw;
1350 struct fc_port *sess = fcport;
1351 unsigned long flags;
1353 if (vha->vha_tgt.qla_tgt->tgt_stop)
1356 if (fcport->se_sess) {
1357 if (!kref_get_unless_zero(&sess->sess_kref)) {
1358 ql_dbg(ql_dbg_disc, vha, 0x20f6,
1359 "%s: kref_get_unless_zero failed for %8phC\n",
1360 __func__, sess->port_name);
1365 sess->tgt = vha->vha_tgt.qla_tgt;
1366 sess->local = local;
1369 * Under normal circumstances we want to logout from firmware when
1370 * session eventually ends and release corresponding nport handle.
1371 * In the exception cases (e.g. when new PLOGI is waiting) corresponding
1372 * code will adjust these flags as necessary.
1374 sess->logout_on_delete = 1;
1375 sess->keep_nport_handle = 0;
1376 sess->logout_completed = 0;
1378 if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
1379 &fcport->port_name[0], sess) < 0) {
1380 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015,
1381 "(%d) %8phC check_initiator_node_acl failed\n",
1382 vha->vp_idx, fcport->port_name);
1385 kref_init(&fcport->sess_kref);
1387 * Take an extra reference to ->sess_kref here to handle
1388 * fc_port access across ->tgt.sess_lock reaquire.
1390 if (!kref_get_unless_zero(&sess->sess_kref)) {
1391 ql_dbg(ql_dbg_disc, vha, 0x20f7,
1392 "%s: kref_get_unless_zero failed for %8phC\n",
1393 __func__, sess->port_name);
1397 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1398 if (!IS_SW_RESV_ADDR(sess->d_id))
1399 vha->vha_tgt.qla_tgt->sess_count++;
1401 qlt_do_generation_tick(vha, &sess->generation);
1402 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1405 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006,
1406 "Adding sess %p se_sess %p to tgt %p sess_count %d\n",
1407 sess, sess->se_sess, vha->vha_tgt.qla_tgt,
1408 vha->vha_tgt.qla_tgt->sess_count);
1410 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b,
1411 "qla_target(%d): %ssession for wwn %8phC (loop_id %d, "
1412 "s_id %x:%x:%x, confirmed completion %ssupported) added\n",
1413 vha->vp_idx, local ? "local " : "", fcport->port_name,
1414 fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area,
1415 sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not ");
1421 * max_gen - specifies maximum session generation
1422 * at which this deletion requestion is still valid
1425 qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
1427 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1428 struct fc_port *sess = fcport;
1429 unsigned long flags;
1431 if (!vha->hw->tgt.tgt_ops)
1437 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1438 if (tgt->tgt_stop) {
1439 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1442 if (!sess->se_sess) {
1443 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1447 if (max_gen - sess->generation < 0) {
1448 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1449 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092,
1450 "Ignoring stale deletion request for se_sess %p / sess %p"
1451 " for port %8phC, req_gen %d, sess_gen %d\n",
1452 sess->se_sess, sess, sess->port_name, max_gen,
1457 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
1460 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1461 qlt_schedule_sess_for_deletion(sess);
1464 static inline int test_tgt_sess_count(struct qla_tgt *tgt)
1466 struct qla_hw_data *ha = tgt->ha;
1467 unsigned long flags;
1470 * We need to protect against race, when tgt is freed before or
1473 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1474 ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
1475 "tgt %p, sess_count=%d\n",
1476 tgt, tgt->sess_count);
1477 res = (tgt->sess_count == 0);
1478 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1483 /* Called by tcm_qla2xxx configfs code */
1484 int qlt_stop_phase1(struct qla_tgt *tgt)
1486 struct scsi_qla_host *vha = tgt->vha;
1487 struct qla_hw_data *ha = tgt->ha;
1488 unsigned long flags;
1490 mutex_lock(&ha->optrom_mutex);
1491 mutex_lock(&qla_tgt_mutex);
1493 if (tgt->tgt_stop || tgt->tgt_stopped) {
1494 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e,
1495 "Already in tgt->tgt_stop or tgt_stopped state\n");
1496 mutex_unlock(&qla_tgt_mutex);
1497 mutex_unlock(&ha->optrom_mutex);
1501 ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n",
1504 * Mutex needed to sync with qla_tgt_fc_port_[added,deleted].
1505 * Lock is needed, because we still can get an incoming packet.
1507 mutex_lock(&vha->vha_tgt.tgt_mutex);
1509 qlt_clear_tgt_db(tgt);
1510 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1511 mutex_unlock(&qla_tgt_mutex);
1513 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
1514 "Waiting for sess works (tgt %p)", tgt);
1515 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1516 while (!list_empty(&tgt->sess_works_list)) {
1517 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1518 flush_scheduled_work();
1519 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1521 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1523 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
1524 "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count);
1526 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1529 if (!ha->flags.host_shutting_down &&
1530 (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)))
1531 qlt_disable_vha(vha);
1533 /* Wait for sessions to clear out (just in case) */
1534 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1535 mutex_unlock(&ha->optrom_mutex);
1539 EXPORT_SYMBOL(qlt_stop_phase1);
1541 /* Called by tcm_qla2xxx configfs code */
1542 void qlt_stop_phase2(struct qla_tgt *tgt)
1544 scsi_qla_host_t *vha = tgt->vha;
1546 if (tgt->tgt_stopped) {
1547 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f,
1548 "Already in tgt->tgt_stopped state\n");
1552 if (!tgt->tgt_stop) {
1553 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b,
1554 "%s: phase1 stop is not completed\n", __func__);
1559 mutex_lock(&vha->vha_tgt.tgt_mutex);
1561 tgt->tgt_stopped = 1;
1562 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1564 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n",
1567 switch (vha->qlini_mode) {
1568 case QLA2XXX_INI_MODE_EXCLUSIVE:
1569 vha->flags.online = 1;
1570 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1576 EXPORT_SYMBOL(qlt_stop_phase2);
1578 /* Called from qlt_remove_target() -> qla2x00_remove_one() */
1579 static void qlt_release(struct qla_tgt *tgt)
1581 scsi_qla_host_t *vha = tgt->vha;
1585 struct qla_qpair_hint *h;
1586 struct qla_hw_data *ha = vha->hw;
1588 if (!tgt->tgt_stop && !tgt->tgt_stopped)
1589 qlt_stop_phase1(tgt);
1591 if (!tgt->tgt_stopped)
1592 qlt_stop_phase2(tgt);
1594 for (i = 0; i < vha->hw->max_qpairs + 1; i++) {
1595 unsigned long flags;
1597 h = &tgt->qphints[i];
1599 spin_lock_irqsave(h->qpair->qp_lock_ptr, flags);
1600 list_del(&h->hint_elem);
1601 spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags);
1605 kfree(tgt->qphints);
1606 mutex_lock(&qla_tgt_mutex);
1607 list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
1608 mutex_unlock(&qla_tgt_mutex);
1610 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
1611 btree_remove64(&tgt->lun_qpair_map, key);
1613 btree_destroy64(&tgt->lun_qpair_map);
1616 if (ha->tgt.tgt_ops &&
1617 ha->tgt.tgt_ops->remove_target &&
1618 vha->vha_tgt.target_lport_ptr)
1619 ha->tgt.tgt_ops->remove_target(vha);
1621 vha->vha_tgt.qla_tgt = NULL;
1623 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
1624 "Release of tgt %p finished\n", tgt);
1629 /* ha->hardware_lock supposed to be held on entry */
1630 static int qlt_sched_sess_work(struct qla_tgt *tgt, int type,
1631 const void *param, unsigned int param_size)
1633 struct qla_tgt_sess_work_param *prm;
1634 unsigned long flags;
1636 prm = kzalloc(sizeof(*prm), GFP_ATOMIC);
1638 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050,
1639 "qla_target(%d): Unable to create session "
1640 "work, command will be refused", 0);
1644 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e,
1645 "Scheduling work (type %d, prm %p)"
1646 " to find session for param %p (size %d, tgt %p)\n",
1647 type, prm, param, param_size, tgt);
1650 memcpy(&prm->tm_iocb, param, param_size);
1652 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1653 list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list);
1654 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1656 schedule_work(&tgt->sess_work);
1662 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1664 static void qlt_send_notify_ack(struct qla_qpair *qpair,
1665 struct imm_ntfy_from_isp *ntfy,
1666 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
1667 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan)
1669 struct scsi_qla_host *vha = qpair->vha;
1670 struct qla_hw_data *ha = vha->hw;
1672 struct nack_to_isp *nack;
1674 if (!ha->flags.fw_started)
1677 ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha);
1679 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
1681 ql_dbg(ql_dbg_tgt, vha, 0xe049,
1682 "qla_target(%d): %s failed: unable to allocate "
1683 "request packet\n", vha->vp_idx, __func__);
1687 if (vha->vha_tgt.qla_tgt != NULL)
1688 vha->vha_tgt.qla_tgt->notify_ack_expected++;
1690 pkt->entry_type = NOTIFY_ACK_TYPE;
1691 pkt->entry_count = 1;
1693 nack = (struct nack_to_isp *)pkt;
1694 nack->ox_id = ntfy->ox_id;
1696 nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE;
1697 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
1698 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
1699 nack->u.isp24.flags = ntfy->u.isp24.flags &
1700 cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
1702 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
1703 nack->u.isp24.status = ntfy->u.isp24.status;
1704 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
1705 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
1706 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
1707 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
1708 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
1709 nack->u.isp24.srr_flags = cpu_to_le16(srr_flags);
1710 nack->u.isp24.srr_reject_code = srr_reject_code;
1711 nack->u.isp24.srr_reject_code_expl = srr_explan;
1712 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
1714 ql_dbg(ql_dbg_tgt, vha, 0xe005,
1715 "qla_target(%d): Sending 24xx Notify Ack %d\n",
1716 vha->vp_idx, nack->u.isp24.status);
1718 /* Memory Barrier */
1720 qla2x00_start_iocbs(vha, qpair->req);
1723 static int qlt_build_abts_resp_iocb(struct qla_tgt_mgmt_cmd *mcmd)
1725 struct scsi_qla_host *vha = mcmd->vha;
1726 struct qla_hw_data *ha = vha->hw;
1727 struct abts_resp_to_24xx *resp;
1731 struct abts_recv_from_24xx *abts = &mcmd->orig_iocb.abts;
1732 struct qla_qpair *qpair = mcmd->qpair;
1734 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1735 "Sending task mgmt ABTS response (ha=%p, status=%x)\n",
1736 ha, mcmd->fc_tm_rsp);
1738 rc = qlt_check_reserve_free_req(qpair, 1);
1740 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1741 "qla_target(%d): %s failed: unable to allocate request packet\n",
1742 vha->vp_idx, __func__);
1746 resp = (struct abts_resp_to_24xx *)qpair->req->ring_ptr;
1747 memset(resp, 0, sizeof(*resp));
1749 h = qlt_make_handle(qpair);
1750 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
1752 * CTIO type 7 from the firmware doesn't provide a way to
1753 * know the initiator's LOOP ID, hence we can't find
1754 * the session and, so, the command.
1758 qpair->req->outstanding_cmds[h] = (srb_t *)mcmd;
1761 resp->handle = make_handle(qpair->req->id, h);
1762 resp->entry_type = ABTS_RESP_24XX;
1763 resp->entry_count = 1;
1764 resp->nport_handle = abts->nport_handle;
1765 resp->vp_index = vha->vp_idx;
1766 resp->sof_type = abts->sof_type;
1767 resp->exchange_address = abts->exchange_address;
1768 resp->fcp_hdr_le = abts->fcp_hdr_le;
1769 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1770 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1771 F_CTL_SEQ_INITIATIVE);
1772 p = (uint8_t *)&f_ctl;
1773 resp->fcp_hdr_le.f_ctl[0] = *p++;
1774 resp->fcp_hdr_le.f_ctl[1] = *p++;
1775 resp->fcp_hdr_le.f_ctl[2] = *p;
1777 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
1778 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
1780 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1781 if (mcmd->fc_tm_rsp == FCP_TMF_CMPL) {
1782 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1783 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1784 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1785 resp->payload.ba_acct.high_seq_cnt = 0xFFFF;
1786 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1787 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1789 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1790 resp->payload.ba_rjt.reason_code =
1791 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1792 /* Other bytes are zero */
1795 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1797 /* Memory Barrier */
1799 if (qpair->reqq_start_iocbs)
1800 qpair->reqq_start_iocbs(qpair);
1802 qla2x00_start_iocbs(vha, qpair->req);
1808 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1810 static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair,
1811 struct abts_recv_from_24xx *abts, uint32_t status,
1814 struct scsi_qla_host *vha = qpair->vha;
1815 struct qla_hw_data *ha = vha->hw;
1816 struct abts_resp_to_24xx *resp;
1820 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1821 "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
1824 resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair,
1827 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1828 "qla_target(%d): %s failed: unable to allocate "
1829 "request packet", vha->vp_idx, __func__);
1833 resp->entry_type = ABTS_RESP_24XX;
1834 resp->handle = QLA_TGT_SKIP_HANDLE;
1835 resp->entry_count = 1;
1836 resp->nport_handle = abts->nport_handle;
1837 resp->vp_index = vha->vp_idx;
1838 resp->sof_type = abts->sof_type;
1839 resp->exchange_address = abts->exchange_address;
1840 resp->fcp_hdr_le = abts->fcp_hdr_le;
1841 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1842 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1843 F_CTL_SEQ_INITIATIVE);
1844 p = (uint8_t *)&f_ctl;
1845 resp->fcp_hdr_le.f_ctl[0] = *p++;
1846 resp->fcp_hdr_le.f_ctl[1] = *p++;
1847 resp->fcp_hdr_le.f_ctl[2] = *p;
1849 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.d_id;
1850 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.s_id;
1852 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
1853 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
1855 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1856 if (status == FCP_TMF_CMPL) {
1857 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1858 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1859 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1860 resp->payload.ba_acct.high_seq_cnt = 0xFFFF;
1861 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1862 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1864 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1865 resp->payload.ba_rjt.reason_code =
1866 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1867 /* Other bytes are zero */
1870 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1872 /* Memory Barrier */
1874 if (qpair->reqq_start_iocbs)
1875 qpair->reqq_start_iocbs(qpair);
1877 qla2x00_start_iocbs(vha, qpair->req);
1881 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1883 static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha,
1884 struct qla_qpair *qpair, response_t *pkt, struct qla_tgt_mgmt_cmd *mcmd)
1886 struct ctio7_to_24xx *ctio;
1888 struct abts_recv_from_24xx *entry;
1890 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, NULL);
1892 ql_dbg(ql_dbg_tgt, vha, 0xe04b,
1893 "qla_target(%d): %s failed: unable to allocate "
1894 "request packet\n", vha->vp_idx, __func__);
1899 /* abts from remote port */
1900 entry = &mcmd->orig_iocb.abts;
1902 /* abts from this driver. */
1903 entry = (struct abts_recv_from_24xx *)pkt;
1906 * We've got on entrance firmware's response on by us generated
1907 * ABTS response. So, in it ID fields are reversed.
1910 ctio->entry_type = CTIO_TYPE7;
1911 ctio->entry_count = 1;
1912 ctio->nport_handle = entry->nport_handle;
1913 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
1914 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
1915 ctio->vp_index = vha->vp_idx;
1916 ctio->exchange_addr = entry->exchange_addr_to_abort;
1917 tmp = (CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE);
1920 ctio->initiator_id = entry->fcp_hdr_le.s_id;
1922 if (mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID)
1923 tmp |= (mcmd->abort_io_attr << 9);
1924 else if (qpair->retry_term_cnt & 1)
1927 ctio->initiator_id = entry->fcp_hdr_le.d_id;
1929 if (qpair->retry_term_cnt & 1)
1932 ctio->u.status1.flags = cpu_to_le16(tmp);
1933 ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id;
1935 ql_dbg(ql_dbg_tgt, vha, 0xe007,
1936 "Sending retry TERM EXCH CTIO7 flags %04xh oxid %04xh attr valid %x\n",
1937 le16_to_cpu(ctio->u.status1.flags),
1938 le16_to_cpu(ctio->u.status1.ox_id),
1939 (mcmd && mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID) ? 1 : 0);
1941 /* Memory Barrier */
1943 if (qpair->reqq_start_iocbs)
1944 qpair->reqq_start_iocbs(qpair);
1946 qla2x00_start_iocbs(vha, qpair->req);
1949 qlt_build_abts_resp_iocb(mcmd);
1951 qlt_24xx_send_abts_resp(qpair,
1952 (struct abts_recv_from_24xx *)entry, FCP_TMF_CMPL, true);
1956 /* drop cmds for the given lun
1957 * XXX only looks for cmds on the port through which lun reset was recieved
1958 * XXX does not go through the list of other port (which may have cmds
1961 static void abort_cmds_for_lun(struct scsi_qla_host *vha, u64 lun, be_id_t s_id)
1963 struct qla_tgt_sess_op *op;
1964 struct qla_tgt_cmd *cmd;
1966 unsigned long flags;
1968 key = sid_to_key(s_id);
1969 spin_lock_irqsave(&vha->cmd_list_lock, flags);
1970 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
1974 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
1975 op_lun = scsilun_to_int(
1976 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
1977 if (op_key == key && op_lun == lun)
1981 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
1985 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
1986 op_lun = scsilun_to_int(
1987 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
1988 if (op_key == key && op_lun == lun)
1992 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
1996 cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
1997 cmd_lun = scsilun_to_int(
1998 (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun);
1999 if (cmd_key == key && cmd_lun == lun)
2002 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
2005 static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha,
2006 uint64_t unpacked_lun)
2008 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
2009 struct qla_qpair_hint *h = NULL;
2011 if (vha->flags.qpairs_available) {
2012 h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun);
2014 h = &tgt->qphints[0];
2016 h = &tgt->qphints[0];
2022 static void qlt_do_tmr_work(struct work_struct *work)
2024 struct qla_tgt_mgmt_cmd *mcmd =
2025 container_of(work, struct qla_tgt_mgmt_cmd, work);
2026 struct qla_hw_data *ha = mcmd->vha->hw;
2029 unsigned long flags;
2031 switch (mcmd->tmr_func) {
2033 tag = mcmd->orig_iocb.abts.exchange_addr_to_abort;
2040 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun,
2041 mcmd->tmr_func, tag);
2044 spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags);
2045 switch (mcmd->tmr_func) {
2047 mcmd->fc_tm_rsp = FCP_TMF_REJECTED;
2048 qlt_build_abts_resp_iocb(mcmd);
2050 case QLA_TGT_LUN_RESET:
2051 case QLA_TGT_CLEAR_TS:
2052 case QLA_TGT_ABORT_TS:
2053 case QLA_TGT_CLEAR_ACA:
2054 case QLA_TGT_TARGET_RESET:
2055 qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio,
2059 case QLA_TGT_ABORT_ALL:
2060 case QLA_TGT_NEXUS_LOSS_SESS:
2061 case QLA_TGT_NEXUS_LOSS:
2062 qlt_send_notify_ack(mcmd->qpair,
2063 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2066 spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags);
2068 ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052,
2069 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
2070 mcmd->vha->vp_idx, rc);
2071 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2075 /* ha->hardware_lock supposed to be held on entry */
2076 static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2077 struct abts_recv_from_24xx *abts, struct fc_port *sess)
2079 struct qla_hw_data *ha = vha->hw;
2080 struct qla_tgt_mgmt_cmd *mcmd;
2081 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
2083 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
2084 "qla_target(%d): task abort (tag=%d)\n",
2085 vha->vp_idx, abts->exchange_addr_to_abort);
2087 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
2089 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051,
2090 "qla_target(%d): %s: Allocation of ABORT cmd failed",
2091 vha->vp_idx, __func__);
2094 memset(mcmd, 0, sizeof(*mcmd));
2095 mcmd->cmd_type = TYPE_TGT_TMCMD;
2097 memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
2098 mcmd->reset_count = ha->base_qpair->chip_reset;
2099 mcmd->tmr_func = QLA_TGT_ABTS;
2100 mcmd->qpair = h->qpair;
2104 * LUN is looked up by target-core internally based on the passed
2105 * abts->exchange_addr_to_abort tag.
2107 mcmd->se_cmd.cpuid = h->cpuid;
2109 if (ha->tgt.tgt_ops->find_cmd_by_tag) {
2110 struct qla_tgt_cmd *abort_cmd;
2112 abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
2113 abts->exchange_addr_to_abort);
2114 if (abort_cmd && abort_cmd->qpair) {
2115 mcmd->qpair = abort_cmd->qpair;
2116 mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid;
2117 mcmd->abort_io_attr = abort_cmd->atio.u.isp24.attr;
2118 mcmd->flags = QLA24XX_MGMT_ABORT_IO_ATTR_VALID;
2122 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
2123 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work);
2129 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2131 static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2132 struct abts_recv_from_24xx *abts)
2134 struct qla_hw_data *ha = vha->hw;
2135 struct fc_port *sess;
2136 uint32_t tag = abts->exchange_addr_to_abort;
2139 unsigned long flags;
2141 if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) {
2142 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053,
2143 "qla_target(%d): ABTS: Abort Sequence not "
2144 "supported\n", vha->vp_idx);
2145 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2150 if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
2151 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010,
2152 "qla_target(%d): ABTS: Unknown Exchange "
2153 "Address received\n", vha->vp_idx);
2154 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2159 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011,
2160 "qla_target(%d): task abort (s_id=%x:%x:%x, "
2161 "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id.domain,
2162 abts->fcp_hdr_le.s_id.area, abts->fcp_hdr_le.s_id.al_pa, tag,
2163 le32_to_cpu(abts->fcp_hdr_le.parameter));
2165 s_id = le_id_to_be(abts->fcp_hdr_le.s_id);
2167 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
2168 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
2170 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
2171 "qla_target(%d): task abort for non-existent session\n",
2173 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2175 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2179 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2182 if (sess->deleted) {
2183 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2188 rc = __qlt_24xx_handle_abts(vha, abts, sess);
2190 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054,
2191 "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
2193 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2200 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2202 static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair,
2203 struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code)
2205 struct scsi_qla_host *ha = mcmd->vha;
2206 struct atio_from_isp *atio = &mcmd->orig_iocb.atio;
2207 struct ctio7_to_24xx *ctio;
2210 ql_dbg(ql_dbg_tgt, ha, 0xe008,
2211 "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n",
2212 ha, atio, resp_code);
2215 ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL);
2217 ql_dbg(ql_dbg_tgt, ha, 0xe04c,
2218 "qla_target(%d): %s failed: unable to allocate "
2219 "request packet\n", ha->vp_idx, __func__);
2223 ctio->entry_type = CTIO_TYPE7;
2224 ctio->entry_count = 1;
2225 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
2226 ctio->nport_handle = mcmd->sess->loop_id;
2227 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2228 ctio->vp_index = ha->vp_idx;
2229 ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2230 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2231 temp = (atio->u.isp24.attr << 9)|
2232 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2233 ctio->u.status1.flags = cpu_to_le16(temp);
2234 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2235 ctio->u.status1.ox_id = cpu_to_le16(temp);
2236 ctio->u.status1.scsi_status =
2237 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
2238 ctio->u.status1.response_len = cpu_to_le16(8);
2239 ctio->u.status1.sense_data[0] = resp_code;
2241 /* Memory Barrier */
2243 if (qpair->reqq_start_iocbs)
2244 qpair->reqq_start_iocbs(qpair);
2246 qla2x00_start_iocbs(ha, qpair->req);
2249 void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
2251 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2253 EXPORT_SYMBOL(qlt_free_mcmd);
2256 * ha->hardware_lock supposed to be held on entry. Might drop it, then
2259 void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
2260 uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq)
2262 struct atio_from_isp *atio = &cmd->atio;
2263 struct ctio7_to_24xx *ctio;
2265 struct scsi_qla_host *vha = cmd->vha;
2267 ql_dbg(ql_dbg_tgt_dif, vha, 0x3066,
2268 "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, "
2269 "sense_key=%02x, asc=%02x, ascq=%02x",
2270 vha, atio, scsi_status, sense_key, asc, ascq);
2272 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
2274 ql_dbg(ql_dbg_async, vha, 0x3067,
2275 "qla2x00t(%ld): %s failed: unable to allocate request packet",
2276 vha->host_no, __func__);
2280 ctio->entry_type = CTIO_TYPE7;
2281 ctio->entry_count = 1;
2282 ctio->handle = QLA_TGT_SKIP_HANDLE;
2283 ctio->nport_handle = cmd->sess->loop_id;
2284 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2285 ctio->vp_index = vha->vp_idx;
2286 ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2287 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2288 temp = (atio->u.isp24.attr << 9) |
2289 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2290 ctio->u.status1.flags = cpu_to_le16(temp);
2291 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2292 ctio->u.status1.ox_id = cpu_to_le16(temp);
2293 ctio->u.status1.scsi_status =
2294 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status);
2295 ctio->u.status1.response_len = cpu_to_le16(18);
2296 ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
2298 if (ctio->u.status1.residual != 0)
2299 ctio->u.status1.scsi_status |=
2300 cpu_to_le16(SS_RESIDUAL_UNDER);
2302 /* Fixed format sense data. */
2303 ctio->u.status1.sense_data[0] = 0x70;
2304 ctio->u.status1.sense_data[2] = sense_key;
2305 /* Additional sense length */
2306 ctio->u.status1.sense_data[7] = 0xa;
2308 ctio->u.status1.sense_data[12] = asc;
2309 ctio->u.status1.sense_data[13] = ascq;
2311 /* Memory Barrier */
2314 if (qpair->reqq_start_iocbs)
2315 qpair->reqq_start_iocbs(qpair);
2317 qla2x00_start_iocbs(vha, qpair->req);
2323 /* callback from target fabric module code */
2324 void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
2326 struct scsi_qla_host *vha = mcmd->sess->vha;
2327 struct qla_hw_data *ha = vha->hw;
2328 unsigned long flags;
2329 struct qla_qpair *qpair = mcmd->qpair;
2330 bool free_mcmd = true;
2332 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013,
2333 "TM response mcmd (%p) status %#x state %#x",
2334 mcmd, mcmd->fc_tm_rsp, mcmd->flags);
2336 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
2338 if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) {
2340 * Either the port is not online or this request was from
2341 * previous life, just abort the processing.
2343 ql_dbg(ql_dbg_async, vha, 0xe100,
2344 "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n",
2345 vha->flags.online, qla2x00_reset_active(vha),
2346 mcmd->reset_count, qpair->chip_reset);
2347 ha->tgt.tgt_ops->free_mcmd(mcmd);
2348 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2352 if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) {
2353 switch (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode) {
2357 ql_dbg(ql_dbg_disc, vha, 0x2106,
2358 "TM response logo %8phC status %#x state %#x",
2359 mcmd->sess->port_name, mcmd->fc_tm_rsp,
2361 qlt_schedule_sess_for_deletion(mcmd->sess);
2364 qlt_send_notify_ack(vha->hw->base_qpair,
2365 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2369 if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) {
2370 qlt_build_abts_resp_iocb(mcmd);
2373 qlt_24xx_send_task_mgmt_ctio(qpair, mcmd,
2377 * Make the callback for ->free_mcmd() to queue_work() and invoke
2378 * target_put_sess_cmd() to drop cmd_kref to 1. The final
2379 * target_put_sess_cmd() call will be made from TFO->check_stop_free()
2380 * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd
2381 * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() ->
2382 * qlt_xmit_tm_rsp() returns here..
2385 ha->tgt.tgt_ops->free_mcmd(mcmd);
2387 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2389 EXPORT_SYMBOL(qlt_xmit_tm_rsp);
2392 static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm)
2394 struct qla_tgt_cmd *cmd = prm->cmd;
2396 BUG_ON(cmd->sg_cnt == 0);
2398 prm->sg = (struct scatterlist *)cmd->sg;
2399 prm->seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev, cmd->sg,
2400 cmd->sg_cnt, cmd->dma_data_direction);
2401 if (unlikely(prm->seg_cnt == 0))
2404 prm->cmd->sg_mapped = 1;
2406 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) {
2408 * If greater than four sg entries then we need to allocate
2409 * the continuation entries
2411 if (prm->seg_cnt > QLA_TGT_DATASEGS_PER_CMD_24XX)
2412 prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt -
2413 QLA_TGT_DATASEGS_PER_CMD_24XX,
2414 QLA_TGT_DATASEGS_PER_CONT_24XX);
2417 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2418 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2419 prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz);
2420 prm->tot_dsds = prm->seg_cnt;
2422 prm->tot_dsds = prm->seg_cnt;
2424 if (cmd->prot_sg_cnt) {
2425 prm->prot_sg = cmd->prot_sg;
2426 prm->prot_seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev,
2427 cmd->prot_sg, cmd->prot_sg_cnt,
2428 cmd->dma_data_direction);
2429 if (unlikely(prm->prot_seg_cnt == 0))
2432 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2433 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2434 /* Dif Bundling not support here */
2435 prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen,
2437 prm->tot_dsds += prm->prot_seg_cnt;
2439 prm->tot_dsds += prm->prot_seg_cnt;
2446 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d,
2447 "qla_target(%d): PCI mapping failed: sg_cnt=%d",
2448 0, prm->cmd->sg_cnt);
2452 static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd)
2454 struct qla_hw_data *ha;
2455 struct qla_qpair *qpair;
2457 if (!cmd->sg_mapped)
2462 dma_unmap_sg(&qpair->pdev->dev, cmd->sg, cmd->sg_cnt,
2463 cmd->dma_data_direction);
2466 if (cmd->prot_sg_cnt)
2467 dma_unmap_sg(&qpair->pdev->dev, cmd->prot_sg, cmd->prot_sg_cnt,
2468 cmd->dma_data_direction);
2473 if (cmd->ctx_dsd_alloced)
2474 qla2x00_clean_dsd_pool(ha, cmd->ctx);
2476 dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma);
2479 static int qlt_check_reserve_free_req(struct qla_qpair *qpair,
2483 struct req_que *req = qpair->req;
2485 if (req->cnt < (req_cnt + 2)) {
2486 cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr :
2487 RD_REG_DWORD_RELAXED(req->req_q_out));
2489 if (req->ring_index < cnt)
2490 req->cnt = cnt - req->ring_index;
2492 req->cnt = req->length - (req->ring_index - cnt);
2494 if (unlikely(req->cnt < (req_cnt + 2)))
2498 req->cnt -= req_cnt;
2504 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2506 static inline void *qlt_get_req_pkt(struct req_que *req)
2508 /* Adjust ring index. */
2510 if (req->ring_index == req->length) {
2511 req->ring_index = 0;
2512 req->ring_ptr = req->ring;
2516 return (cont_entry_t *)req->ring_ptr;
2519 /* ha->hardware_lock supposed to be held on entry */
2520 static inline uint32_t qlt_make_handle(struct qla_qpair *qpair)
2525 struct req_que *req = qpair->req;
2527 h = req->current_outstanding_cmd;
2529 for (index = 1; index < req->num_outstanding_cmds; index++) {
2531 if (h == req->num_outstanding_cmds)
2534 if (h == QLA_TGT_SKIP_HANDLE)
2537 if (!req->outstanding_cmds[h]) {
2544 req->current_outstanding_cmd = h;
2546 ql_dbg(ql_dbg_io, qpair->vha, 0x305b,
2547 "qla_target(%d): Ran out of empty cmd slots\n",
2548 qpair->vha->vp_idx);
2549 h = QLA_TGT_NULL_HANDLE;
2555 /* ha->hardware_lock supposed to be held on entry */
2556 static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair,
2557 struct qla_tgt_prm *prm)
2560 struct ctio7_to_24xx *pkt;
2561 struct atio_from_isp *atio = &prm->cmd->atio;
2564 pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr;
2566 memset(pkt, 0, sizeof(*pkt));
2568 pkt->entry_type = CTIO_TYPE7;
2569 pkt->entry_count = (uint8_t)prm->req_cnt;
2570 pkt->vp_index = prm->cmd->vp_idx;
2572 h = qlt_make_handle(qpair);
2573 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
2575 * CTIO type 7 from the firmware doesn't provide a way to
2576 * know the initiator's LOOP ID, hence we can't find
2577 * the session and, so, the command.
2581 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
2583 pkt->handle = make_handle(qpair->req->id, h);
2584 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
2585 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
2586 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2587 pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2588 pkt->exchange_addr = atio->u.isp24.exchange_addr;
2589 temp = atio->u.isp24.attr << 9;
2590 pkt->u.status0.flags |= cpu_to_le16(temp);
2591 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2592 pkt->u.status0.ox_id = cpu_to_le16(temp);
2593 pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset);
2599 * ha->hardware_lock supposed to be held on entry. We have already made sure
2600 * that there is sufficient amount of request entries to not drop it.
2602 static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm)
2605 struct dsd64 *cur_dsd;
2607 /* Build continuation packets */
2608 while (prm->seg_cnt > 0) {
2609 cont_a64_entry_t *cont_pkt64 =
2610 (cont_a64_entry_t *)qlt_get_req_pkt(
2611 prm->cmd->qpair->req);
2614 * Make sure that from cont_pkt64 none of
2615 * 64-bit specific fields used for 32-bit
2616 * addressing. Cast to (cont_entry_t *) for
2620 memset(cont_pkt64, 0, sizeof(*cont_pkt64));
2622 cont_pkt64->entry_count = 1;
2623 cont_pkt64->sys_define = 0;
2625 cont_pkt64->entry_type = CONTINUE_A64_TYPE;
2626 cur_dsd = cont_pkt64->dsd;
2628 /* Load continuation entry data segments */
2630 cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt;
2631 cnt++, prm->seg_cnt--) {
2632 append_dsd64(&cur_dsd, prm->sg);
2633 prm->sg = sg_next(prm->sg);
2639 * ha->hardware_lock supposed to be held on entry. We have already made sure
2640 * that there is sufficient amount of request entries to not drop it.
2642 static void qlt_load_data_segments(struct qla_tgt_prm *prm)
2645 struct dsd64 *cur_dsd;
2646 struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt;
2648 pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen);
2650 /* Setup packet address segment pointer */
2651 cur_dsd = &pkt24->u.status0.dsd;
2653 /* Set total data segment count */
2655 pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
2657 if (prm->seg_cnt == 0) {
2658 /* No data transfer */
2659 cur_dsd->address = 0;
2660 cur_dsd->length = 0;
2664 /* If scatter gather */
2666 /* Load command entry data segments */
2668 (cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt;
2669 cnt++, prm->seg_cnt--) {
2670 append_dsd64(&cur_dsd, prm->sg);
2671 prm->sg = sg_next(prm->sg);
2674 qlt_load_cont_data_segments(prm);
2677 static inline int qlt_has_data(struct qla_tgt_cmd *cmd)
2679 return cmd->bufflen > 0;
2682 static void qlt_print_dif_err(struct qla_tgt_prm *prm)
2684 struct qla_tgt_cmd *cmd;
2685 struct scsi_qla_host *vha;
2687 /* asc 0x10=dif error */
2688 if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) {
2692 switch (prm->sense_buffer[13]) {
2694 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b,
2695 "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2696 "se_cmd=%p tag[%x]",
2697 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2698 cmd->atio.u.isp24.exchange_addr);
2701 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c,
2702 "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2703 "se_cmd=%p tag[%x]",
2704 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2705 cmd->atio.u.isp24.exchange_addr);
2708 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f,
2709 "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2710 "se_cmd=%p tag[%x]",
2711 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2712 cmd->atio.u.isp24.exchange_addr);
2715 ql_dbg(ql_dbg_tgt_dif, vha, 0xe010,
2716 "BE detected Dif ERR: lba[%llx|%lld] len[%x] "
2717 "se_cmd=%p tag[%x]",
2718 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2719 cmd->atio.u.isp24.exchange_addr);
2722 ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16);
2727 * Called without ha->hardware_lock held
2729 static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
2730 struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status,
2731 uint32_t *full_req_cnt)
2733 struct se_cmd *se_cmd = &cmd->se_cmd;
2734 struct qla_qpair *qpair = cmd->qpair;
2737 prm->tgt = cmd->tgt;
2739 prm->rq_result = scsi_status;
2740 prm->sense_buffer = &cmd->sense_buffer[0];
2741 prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER;
2746 prm->add_status_pkt = 0;
2747 prm->prot_sg = NULL;
2748 prm->prot_seg_cnt = 0;
2751 if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) {
2752 if (qlt_pci_map_calc_cnt(prm) != 0)
2756 *full_req_cnt = prm->req_cnt;
2758 if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
2759 prm->residual = se_cmd->residual_count;
2760 ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c,
2761 "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2762 prm->residual, se_cmd->tag,
2763 se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
2764 cmd->bufflen, prm->rq_result);
2765 prm->rq_result |= SS_RESIDUAL_UNDER;
2766 } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
2767 prm->residual = se_cmd->residual_count;
2768 ql_dbg_qp(ql_dbg_io, qpair, 0x305d,
2769 "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2770 prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
2771 se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
2772 prm->rq_result |= SS_RESIDUAL_OVER;
2775 if (xmit_type & QLA_TGT_XMIT_STATUS) {
2777 * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be
2778 * ignored in *xmit_response() below
2780 if (qlt_has_data(cmd)) {
2781 if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
2782 (IS_FWI2_CAPABLE(cmd->vha->hw) &&
2783 (prm->rq_result != 0))) {
2784 prm->add_status_pkt = 1;
2793 static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd,
2796 if (cmd->qpair->enable_class_2)
2800 return cmd->conf_compl_supported;
2802 return cmd->qpair->enable_explicit_conf &&
2803 cmd->conf_compl_supported;
2806 static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
2807 struct qla_tgt_prm *prm)
2809 prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
2810 (uint32_t)sizeof(ctio->u.status1.sense_data));
2811 ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
2812 if (qlt_need_explicit_conf(prm->cmd, 0)) {
2813 ctio->u.status0.flags |= cpu_to_le16(
2814 CTIO7_FLAGS_EXPLICIT_CONFORM |
2815 CTIO7_FLAGS_CONFORM_REQ);
2817 ctio->u.status0.residual = cpu_to_le32(prm->residual);
2818 ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result);
2819 if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
2822 if (qlt_need_explicit_conf(prm->cmd, 1)) {
2823 if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) {
2824 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017,
2825 "Skipping EXPLICIT_CONFORM and "
2826 "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
2827 "non GOOD status\n");
2828 goto skip_explict_conf;
2830 ctio->u.status1.flags |= cpu_to_le16(
2831 CTIO7_FLAGS_EXPLICIT_CONFORM |
2832 CTIO7_FLAGS_CONFORM_REQ);
2835 ctio->u.status1.flags &=
2836 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2837 ctio->u.status1.flags |=
2838 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2839 ctio->u.status1.scsi_status |=
2840 cpu_to_le16(SS_SENSE_LEN_VALID);
2841 ctio->u.status1.sense_length =
2842 cpu_to_le16(prm->sense_buffer_len);
2843 for (i = 0; i < prm->sense_buffer_len/4; i++)
2844 ((uint32_t *)ctio->u.status1.sense_data)[i] =
2845 cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]);
2847 qlt_print_dif_err(prm);
2850 ctio->u.status1.flags &=
2851 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2852 ctio->u.status1.flags |=
2853 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2854 ctio->u.status1.sense_length = 0;
2855 memset(ctio->u.status1.sense_data, 0,
2856 sizeof(ctio->u.status1.sense_data));
2859 /* Sense with len > 24, is it possible ??? */
2863 qlt_hba_err_chk_enabled(struct se_cmd *se_cmd)
2865 switch (se_cmd->prot_op) {
2866 case TARGET_PROT_DOUT_INSERT:
2867 case TARGET_PROT_DIN_STRIP:
2868 if (ql2xenablehba_err_chk >= 1)
2871 case TARGET_PROT_DOUT_PASS:
2872 case TARGET_PROT_DIN_PASS:
2873 if (ql2xenablehba_err_chk >= 2)
2876 case TARGET_PROT_DIN_INSERT:
2877 case TARGET_PROT_DOUT_STRIP:
2886 qla_tgt_ref_mask_check(struct se_cmd *se_cmd)
2888 switch (se_cmd->prot_op) {
2889 case TARGET_PROT_DIN_INSERT:
2890 case TARGET_PROT_DOUT_INSERT:
2891 case TARGET_PROT_DIN_STRIP:
2892 case TARGET_PROT_DOUT_STRIP:
2893 case TARGET_PROT_DIN_PASS:
2894 case TARGET_PROT_DOUT_PASS:
2903 * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command
2906 qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx,
2907 uint16_t *pfw_prot_opts)
2909 struct se_cmd *se_cmd = &cmd->se_cmd;
2910 uint32_t lba = 0xffffffff & se_cmd->t_task_lba;
2911 scsi_qla_host_t *vha = cmd->tgt->vha;
2912 struct qla_hw_data *ha = vha->hw;
2916 * wait till Mode Sense/Select cmd, modepage Ah, subpage 2
2917 * have been immplemented by TCM, before AppTag is avail.
2918 * Look for modesense_handlers[]
2921 ctx->app_tag_mask[0] = 0x0;
2922 ctx->app_tag_mask[1] = 0x0;
2924 if (IS_PI_UNINIT_CAPABLE(ha)) {
2925 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
2926 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
2927 *pfw_prot_opts |= PO_DIS_VALD_APP_ESC;
2928 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
2929 *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
2932 t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts);
2934 switch (se_cmd->prot_type) {
2935 case TARGET_DIF_TYPE0_PROT:
2937 * No check for ql2xenablehba_err_chk, as it
2938 * would be an I/O error if hba tag generation
2941 ctx->ref_tag = cpu_to_le32(lba);
2942 /* enable ALL bytes of the ref tag */
2943 ctx->ref_tag_mask[0] = 0xff;
2944 ctx->ref_tag_mask[1] = 0xff;
2945 ctx->ref_tag_mask[2] = 0xff;
2946 ctx->ref_tag_mask[3] = 0xff;
2948 case TARGET_DIF_TYPE1_PROT:
2950 * For TYPE 1 protection: 16 bit GUARD tag, 32 bit
2951 * REF tag, and 16 bit app tag.
2953 ctx->ref_tag = cpu_to_le32(lba);
2954 if (!qla_tgt_ref_mask_check(se_cmd) ||
2955 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
2956 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2959 /* enable ALL bytes of the ref tag */
2960 ctx->ref_tag_mask[0] = 0xff;
2961 ctx->ref_tag_mask[1] = 0xff;
2962 ctx->ref_tag_mask[2] = 0xff;
2963 ctx->ref_tag_mask[3] = 0xff;
2965 case TARGET_DIF_TYPE2_PROT:
2967 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF
2968 * tag has to match LBA in CDB + N
2970 ctx->ref_tag = cpu_to_le32(lba);
2971 if (!qla_tgt_ref_mask_check(se_cmd) ||
2972 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
2973 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2976 /* enable ALL bytes of the ref tag */
2977 ctx->ref_tag_mask[0] = 0xff;
2978 ctx->ref_tag_mask[1] = 0xff;
2979 ctx->ref_tag_mask[2] = 0xff;
2980 ctx->ref_tag_mask[3] = 0xff;
2982 case TARGET_DIF_TYPE3_PROT:
2983 /* For TYPE 3 protection: 16 bit GUARD only */
2984 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2985 ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] =
2986 ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00;
2992 qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm)
2994 struct dsd64 *cur_dsd;
2995 uint32_t transfer_length = 0;
2996 uint32_t data_bytes;
2998 uint8_t bundling = 1;
2999 struct crc_context *crc_ctx_pkt = NULL;
3000 struct qla_hw_data *ha;
3001 struct ctio_crc2_to_fw *pkt;
3002 dma_addr_t crc_ctx_dma;
3003 uint16_t fw_prot_opts = 0;
3004 struct qla_tgt_cmd *cmd = prm->cmd;
3005 struct se_cmd *se_cmd = &cmd->se_cmd;
3007 struct atio_from_isp *atio = &prm->cmd->atio;
3008 struct qla_tc_param tc;
3010 scsi_qla_host_t *vha = cmd->vha;
3014 pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr;
3016 memset(pkt, 0, sizeof(*pkt));
3018 ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071,
3019 "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n",
3020 cmd->vp_idx, __func__, se_cmd, se_cmd->prot_op,
3021 prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba);
3023 if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) ||
3024 (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP))
3027 /* Compute dif len and adjust data len to incude protection */
3028 data_bytes = cmd->bufflen;
3029 dif_bytes = (data_bytes / cmd->blk_sz) * 8;
3031 switch (se_cmd->prot_op) {
3032 case TARGET_PROT_DIN_INSERT:
3033 case TARGET_PROT_DOUT_STRIP:
3034 transfer_length = data_bytes;
3035 if (cmd->prot_sg_cnt)
3036 data_bytes += dif_bytes;
3038 case TARGET_PROT_DIN_STRIP:
3039 case TARGET_PROT_DOUT_INSERT:
3040 case TARGET_PROT_DIN_PASS:
3041 case TARGET_PROT_DOUT_PASS:
3042 transfer_length = data_bytes + dif_bytes;
3049 if (!qlt_hba_err_chk_enabled(se_cmd))
3050 fw_prot_opts |= 0x10; /* Disable Guard tag checking */
3051 /* HBA error checking enabled */
3052 else if (IS_PI_UNINIT_CAPABLE(ha)) {
3053 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
3054 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
3055 fw_prot_opts |= PO_DIS_VALD_APP_ESC;
3056 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
3057 fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
3060 switch (se_cmd->prot_op) {
3061 case TARGET_PROT_DIN_INSERT:
3062 case TARGET_PROT_DOUT_INSERT:
3063 fw_prot_opts |= PO_MODE_DIF_INSERT;
3065 case TARGET_PROT_DIN_STRIP:
3066 case TARGET_PROT_DOUT_STRIP:
3067 fw_prot_opts |= PO_MODE_DIF_REMOVE;
3069 case TARGET_PROT_DIN_PASS:
3070 case TARGET_PROT_DOUT_PASS:
3071 fw_prot_opts |= PO_MODE_DIF_PASS;
3072 /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */
3074 default:/* Normal Request */
3075 fw_prot_opts |= PO_MODE_DIF_PASS;
3080 /* Update entry type to indicate Command Type CRC_2 IOCB */
3081 pkt->entry_type = CTIO_CRC2;
3082 pkt->entry_count = 1;
3083 pkt->vp_index = cmd->vp_idx;
3085 h = qlt_make_handle(qpair);
3086 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
3088 * CTIO type 7 from the firmware doesn't provide a way to
3089 * know the initiator's LOOP ID, hence we can't find
3090 * the session and, so, the command.
3094 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
3096 pkt->handle = make_handle(qpair->req->id, h);
3097 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
3098 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
3099 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3100 pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
3101 pkt->exchange_addr = atio->u.isp24.exchange_addr;
3103 /* silence compile warning */
3104 t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3105 pkt->ox_id = cpu_to_le16(t16);
3107 t16 = (atio->u.isp24.attr << 9);
3108 pkt->flags |= cpu_to_le16(t16);
3109 pkt->relative_offset = cpu_to_le32(prm->cmd->offset);
3111 /* Set transfer direction */
3112 if (cmd->dma_data_direction == DMA_TO_DEVICE)
3113 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN);
3114 else if (cmd->dma_data_direction == DMA_FROM_DEVICE)
3115 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT);
3117 pkt->dseg_count = prm->tot_dsds;
3118 /* Fibre channel byte count */
3119 pkt->transfer_length = cpu_to_le32(transfer_length);
3121 /* ----- CRC context -------- */
3123 /* Allocate CRC context from global pool */
3124 crc_ctx_pkt = cmd->ctx =
3125 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
3128 goto crc_queuing_error;
3130 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
3131 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
3134 crc_ctx_pkt->handle = pkt->handle;
3136 qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts);
3138 put_unaligned_le64(crc_ctx_dma, &pkt->crc_context_address);
3139 pkt->crc_context_len = CRC_CONTEXT_LEN_FW;
3142 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
3145 * Configure Bundling if we need to fetch interlaving
3146 * protection PCI accesses
3148 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
3149 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
3150 crc_ctx_pkt->u.bundling.dseg_count =
3151 cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt);
3152 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0];
3155 /* Finish the common fields of CRC pkt */
3156 crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz);
3157 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
3158 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
3159 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
3161 memset((uint8_t *)&tc, 0 , sizeof(tc));
3163 tc.blk_sz = cmd->blk_sz;
3164 tc.bufflen = cmd->bufflen;
3166 tc.prot_sg = cmd->prot_sg;
3167 tc.ctx = crc_ctx_pkt;
3168 tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced;
3170 /* Walks data segments */
3171 pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR);
3173 if (!bundling && prm->prot_seg_cnt) {
3174 if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd,
3175 prm->tot_dsds, &tc))
3176 goto crc_queuing_error;
3177 } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd,
3178 (prm->tot_dsds - prm->prot_seg_cnt), &tc))
3179 goto crc_queuing_error;
3181 if (bundling && prm->prot_seg_cnt) {
3182 /* Walks dif segments */
3183 pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA;
3185 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
3186 if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd,
3187 prm->prot_seg_cnt, cmd))
3188 goto crc_queuing_error;
3193 /* Cleanup will be performed by the caller */
3194 qpair->req->outstanding_cmds[h] = NULL;
3196 return QLA_FUNCTION_FAILED;
3200 * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and *
3201 * QLA_TGT_XMIT_STATUS for >= 24xx silicon
3203 int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
3204 uint8_t scsi_status)
3206 struct scsi_qla_host *vha = cmd->vha;
3207 struct qla_qpair *qpair = cmd->qpair;
3208 struct ctio7_to_24xx *pkt;
3209 struct qla_tgt_prm prm;
3210 uint32_t full_req_cnt = 0;
3211 unsigned long flags = 0;
3214 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3215 (cmd->sess && cmd->sess->deleted)) {
3216 cmd->state = QLA_TGT_STATE_PROCESSED;
3221 ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018,
3222 "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n",
3223 (xmit_type & QLA_TGT_XMIT_STATUS) ?
3224 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction,
3225 &cmd->se_cmd, qpair->id);
3227 res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
3229 if (unlikely(res != 0))
3232 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3234 if (xmit_type == QLA_TGT_XMIT_STATUS)
3235 qpair->tgt_counters.core_qla_snd_status++;
3237 qpair->tgt_counters.core_qla_que_buf++;
3239 if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) {
3241 * Either the port is not online or this request was from
3242 * previous life, just abort the processing.
3244 cmd->state = QLA_TGT_STATE_PROCESSED;
3245 ql_dbg_qp(ql_dbg_async, qpair, 0xe101,
3246 "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
3247 vha->flags.online, qla2x00_reset_active(vha),
3248 cmd->reset_count, qpair->chip_reset);
3249 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3254 /* Does F/W have an IOCBs for this request */
3255 res = qlt_check_reserve_free_req(qpair, full_req_cnt);
3257 goto out_unmap_unlock;
3259 if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA))
3260 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3262 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3263 if (unlikely(res != 0)) {
3264 qpair->req->cnt += full_req_cnt;
3265 goto out_unmap_unlock;
3268 pkt = (struct ctio7_to_24xx *)prm.pkt;
3270 if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
3271 pkt->u.status0.flags |=
3272 cpu_to_le16(CTIO7_FLAGS_DATA_IN |
3273 CTIO7_FLAGS_STATUS_MODE_0);
3275 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3276 qlt_load_data_segments(&prm);
3278 if (prm.add_status_pkt == 0) {
3279 if (xmit_type & QLA_TGT_XMIT_STATUS) {
3280 pkt->u.status0.scsi_status =
3281 cpu_to_le16(prm.rq_result);
3282 pkt->u.status0.residual =
3283 cpu_to_le32(prm.residual);
3284 pkt->u.status0.flags |= cpu_to_le16(
3285 CTIO7_FLAGS_SEND_STATUS);
3286 if (qlt_need_explicit_conf(cmd, 0)) {
3287 pkt->u.status0.flags |=
3289 CTIO7_FLAGS_EXPLICIT_CONFORM |
3290 CTIO7_FLAGS_CONFORM_REQ);
3296 * We have already made sure that there is sufficient
3297 * amount of request entries to not drop HW lock in
3300 struct ctio7_to_24xx *ctio =
3301 (struct ctio7_to_24xx *)qlt_get_req_pkt(
3304 ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e,
3305 "Building additional status packet 0x%p.\n",
3309 * T10Dif: ctio_crc2_to_fw overlay ontop of
3312 memcpy(ctio, pkt, sizeof(*ctio));
3313 /* reset back to CTIO7 */
3314 ctio->entry_count = 1;
3315 ctio->entry_type = CTIO_TYPE7;
3316 ctio->dseg_count = 0;
3317 ctio->u.status1.flags &= ~cpu_to_le16(
3318 CTIO7_FLAGS_DATA_IN);
3320 /* Real finish is ctio_m1's finish */
3321 pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
3322 pkt->u.status0.flags |= cpu_to_le16(
3323 CTIO7_FLAGS_DONT_RET_CTIO);
3325 /* qlt_24xx_init_ctio_to_isp will correct
3326 * all neccessary fields that's part of CTIO7.
3327 * There should be no residual of CTIO-CRC2 data.
3329 qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio,
3333 qlt_24xx_init_ctio_to_isp(pkt, &prm);
3336 cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */
3337 cmd->cmd_sent_to_fw = 1;
3338 cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
3340 /* Memory Barrier */
3342 if (qpair->reqq_start_iocbs)
3343 qpair->reqq_start_iocbs(qpair);
3345 qla2x00_start_iocbs(vha, qpair->req);
3346 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3351 qlt_unmap_sg(vha, cmd);
3352 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3355 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3358 EXPORT_SYMBOL(qlt_xmit_response);
3360 int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
3362 struct ctio7_to_24xx *pkt;
3363 struct scsi_qla_host *vha = cmd->vha;
3364 struct qla_tgt *tgt = cmd->tgt;
3365 struct qla_tgt_prm prm;
3366 unsigned long flags = 0;
3368 struct qla_qpair *qpair = cmd->qpair;
3370 memset(&prm, 0, sizeof(prm));
3376 /* Calculate number of entries and segments required */
3377 if (qlt_pci_map_calc_cnt(&prm) != 0)
3380 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3381 (cmd->sess && cmd->sess->deleted)) {
3383 * Either the port is not online or this request was from
3384 * previous life, just abort the processing.
3387 cmd->write_data_transferred = 0;
3388 cmd->state = QLA_TGT_STATE_DATA_IN;
3389 vha->hw->tgt.tgt_ops->handle_data(cmd);
3390 ql_dbg_qp(ql_dbg_async, qpair, 0xe102,
3391 "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
3392 vha->flags.online, qla2x00_reset_active(vha),
3393 cmd->reset_count, qpair->chip_reset);
3397 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3398 /* Does F/W have an IOCBs for this request */
3399 res = qlt_check_reserve_free_req(qpair, prm.req_cnt);
3401 goto out_unlock_free_unmap;
3402 if (cmd->se_cmd.prot_op)
3403 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3405 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3407 if (unlikely(res != 0)) {
3408 qpair->req->cnt += prm.req_cnt;
3409 goto out_unlock_free_unmap;
3412 pkt = (struct ctio7_to_24xx *)prm.pkt;
3413 pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
3414 CTIO7_FLAGS_STATUS_MODE_0);
3416 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3417 qlt_load_data_segments(&prm);
3419 cmd->state = QLA_TGT_STATE_NEED_DATA;
3420 cmd->cmd_sent_to_fw = 1;
3421 cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
3423 /* Memory Barrier */
3425 if (qpair->reqq_start_iocbs)
3426 qpair->reqq_start_iocbs(qpair);
3428 qla2x00_start_iocbs(vha, qpair->req);
3429 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3433 out_unlock_free_unmap:
3434 qlt_unmap_sg(vha, cmd);
3435 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3439 EXPORT_SYMBOL(qlt_rdy_to_xfer);
3443 * it is assumed either hardware_lock or qpair lock is held.
3446 qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
3447 struct ctio_crc_from_fw *sts)
3449 uint8_t *ap = &sts->actual_dif[0];
3450 uint8_t *ep = &sts->expected_dif[0];
3451 uint64_t lba = cmd->se_cmd.t_task_lba;
3452 uint8_t scsi_status, sense_key, asc, ascq;
3453 unsigned long flags;
3454 struct scsi_qla_host *vha = cmd->vha;
3456 cmd->trc_flags |= TRC_DIF_ERR;
3458 cmd->a_guard = get_unaligned_be16(ap + 0);
3459 cmd->a_app_tag = get_unaligned_be16(ap + 2);
3460 cmd->a_ref_tag = get_unaligned_be32(ap + 4);
3462 cmd->e_guard = get_unaligned_be16(ep + 0);
3463 cmd->e_app_tag = get_unaligned_be16(ep + 2);
3464 cmd->e_ref_tag = get_unaligned_be32(ep + 4);
3466 ql_dbg(ql_dbg_tgt_dif, vha, 0xf075,
3467 "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state);
3469 scsi_status = sense_key = asc = ascq = 0;
3471 /* check appl tag */
3472 if (cmd->e_app_tag != cmd->a_app_tag) {
3473 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d,
3474 "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]",
3475 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3476 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3477 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3478 cmd->atio.u.isp24.fcp_hdr.ox_id);
3480 cmd->dif_err_code = DIF_ERR_APP;
3481 scsi_status = SAM_STAT_CHECK_CONDITION;
3482 sense_key = ABORTED_COMMAND;
3488 if (cmd->e_ref_tag != cmd->a_ref_tag) {
3489 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e,
3490 "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] ",
3491 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3492 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3493 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3494 cmd->atio.u.isp24.fcp_hdr.ox_id);
3496 cmd->dif_err_code = DIF_ERR_REF;
3497 scsi_status = SAM_STAT_CHECK_CONDITION;
3498 sense_key = ABORTED_COMMAND;
3505 if (cmd->e_guard != cmd->a_guard) {
3506 ql_dbg(ql_dbg_tgt_dif, vha, 0xe012,
3507 "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]",
3508 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3509 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3510 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3511 cmd->atio.u.isp24.fcp_hdr.ox_id);
3513 cmd->dif_err_code = DIF_ERR_GRD;
3514 scsi_status = SAM_STAT_CHECK_CONDITION;
3515 sense_key = ABORTED_COMMAND;
3520 switch (cmd->state) {
3521 case QLA_TGT_STATE_NEED_DATA:
3522 /* handle_data will load DIF error code */
3523 cmd->state = QLA_TGT_STATE_DATA_IN;
3524 vha->hw->tgt.tgt_ops->handle_data(cmd);
3527 spin_lock_irqsave(&cmd->cmd_lock, flags);
3529 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3530 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3533 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3535 qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc,
3537 /* assume scsi status gets out on the wire.
3538 * Will not wait for completion.
3540 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3545 /* If hardware_lock held on entry, might drop it, then reaquire */
3546 /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */
3547 static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3548 struct imm_ntfy_from_isp *ntfy)
3550 struct nack_to_isp *nack;
3551 struct qla_hw_data *ha = vha->hw;
3555 ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c,
3556 "Sending TERM ELS CTIO (ha=%p)\n", ha);
3558 pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
3560 ql_dbg(ql_dbg_tgt, vha, 0xe080,
3561 "qla_target(%d): %s failed: unable to allocate "
3562 "request packet\n", vha->vp_idx, __func__);
3566 pkt->entry_type = NOTIFY_ACK_TYPE;
3567 pkt->entry_count = 1;
3568 pkt->handle = QLA_TGT_SKIP_HANDLE;
3570 nack = (struct nack_to_isp *)pkt;
3571 nack->ox_id = ntfy->ox_id;
3573 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3574 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3575 nack->u.isp24.flags = ntfy->u.isp24.flags &
3576 __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
3580 nack->u.isp24.flags |=
3581 __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE);
3583 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3584 nack->u.isp24.status = ntfy->u.isp24.status;
3585 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3586 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3587 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3588 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3589 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3590 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3592 qla2x00_start_iocbs(vha, vha->req);
3596 static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3597 struct imm_ntfy_from_isp *imm, int ha_locked)
3601 WARN_ON_ONCE(!ha_locked);
3602 rc = __qlt_send_term_imm_notif(vha, imm);
3603 pr_debug("rc = %d\n", rc);
3607 * If hardware_lock held on entry, might drop it, then reaquire
3608 * This function sends the appropriate CTIO to ISP 2xxx or 24xx
3610 static int __qlt_send_term_exchange(struct qla_qpair *qpair,
3611 struct qla_tgt_cmd *cmd,
3612 struct atio_from_isp *atio)
3614 struct scsi_qla_host *vha = qpair->vha;
3615 struct ctio7_to_24xx *ctio24;
3616 struct qla_hw_data *ha = vha->hw;
3621 ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha);
3626 pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL);
3628 ql_dbg(ql_dbg_tgt, vha, 0xe050,
3629 "qla_target(%d): %s failed: unable to allocate "
3630 "request packet\n", vha->vp_idx, __func__);
3635 if (cmd->state < QLA_TGT_STATE_PROCESSED) {
3636 ql_dbg(ql_dbg_tgt, vha, 0xe051,
3637 "qla_target(%d): Terminating cmd %p with "
3638 "incorrect state %d\n", vha->vp_idx, cmd,
3644 qpair->tgt_counters.num_term_xchg_sent++;
3645 pkt->entry_count = 1;
3646 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
3648 ctio24 = (struct ctio7_to_24xx *)pkt;
3649 ctio24->entry_type = CTIO_TYPE7;
3650 ctio24->nport_handle = CTIO7_NHANDLE_UNRECOGNIZED;
3651 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3652 ctio24->vp_index = vha->vp_idx;
3653 ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
3654 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
3655 temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 |
3656 CTIO7_FLAGS_TERMINATE;
3657 ctio24->u.status1.flags = cpu_to_le16(temp);
3658 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3659 ctio24->u.status1.ox_id = cpu_to_le16(temp);
3661 /* Memory Barrier */
3663 if (qpair->reqq_start_iocbs)
3664 qpair->reqq_start_iocbs(qpair);
3666 qla2x00_start_iocbs(vha, qpair->req);
3670 static void qlt_send_term_exchange(struct qla_qpair *qpair,
3671 struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked,
3674 struct scsi_qla_host *vha;
3675 unsigned long flags = 0;
3678 /* why use different vha? NPIV */
3685 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3687 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3690 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3691 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3693 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3696 if (cmd && !ul_abort && !cmd->aborted) {
3698 qlt_unmap_sg(vha, cmd);
3699 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3703 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3708 static void qlt_init_term_exchange(struct scsi_qla_host *vha)
3710 struct list_head free_list;
3711 struct qla_tgt_cmd *cmd, *tcmd;
3713 vha->hw->tgt.leak_exchg_thresh_hold =
3714 (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT;
3717 if (!list_empty(&vha->hw->tgt.q_full_list)) {
3718 INIT_LIST_HEAD(&free_list);
3719 list_splice_init(&vha->hw->tgt.q_full_list, &free_list);
3721 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
3722 list_del(&cmd->cmd_list);
3723 /* This cmd was never sent to TCM. There is no need
3724 * to schedule free or call free_cmd
3727 vha->hw->tgt.num_qfull_cmds_alloc--;
3730 vha->hw->tgt.num_qfull_cmds_dropped = 0;
3733 static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha)
3735 uint32_t total_leaked;
3737 total_leaked = vha->hw->tgt.num_qfull_cmds_dropped;
3739 if (vha->hw->tgt.leak_exchg_thresh_hold &&
3740 (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) {
3742 ql_dbg(ql_dbg_tgt, vha, 0xe079,
3743 "Chip reset due to exchange starvation: %d/%d.\n",
3744 total_leaked, vha->hw->cur_fw_xcb_count);
3746 if (IS_P3P_TYPE(vha->hw))
3747 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3749 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3750 qla2xxx_wake_dpc(vha);
3755 int qlt_abort_cmd(struct qla_tgt_cmd *cmd)
3757 struct qla_tgt *tgt = cmd->tgt;
3758 struct scsi_qla_host *vha = tgt->vha;
3759 struct se_cmd *se_cmd = &cmd->se_cmd;
3760 unsigned long flags;
3762 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
3763 "qla_target(%d): terminating exchange for aborted cmd=%p "
3764 "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd,
3767 spin_lock_irqsave(&cmd->cmd_lock, flags);
3769 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3771 * It's normal to see 2 calls in this path:
3772 * 1) XFER Rdy completion + CMD_T_ABORT
3773 * 2) TCM TMR - drain_state_list
3775 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016,
3776 "multiple abort. %p transport_state %x, t_state %x, "
3777 "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state,
3778 cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags);
3782 cmd->trc_flags |= TRC_ABORT;
3783 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3785 qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1);
3788 EXPORT_SYMBOL(qlt_abort_cmd);
3790 void qlt_free_cmd(struct qla_tgt_cmd *cmd)
3792 struct fc_port *sess = cmd->sess;
3794 ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074,
3795 "%s: se_cmd[%p] ox_id %04x\n",
3796 __func__, &cmd->se_cmd,
3797 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
3799 BUG_ON(cmd->cmd_in_wq);
3802 qlt_unmap_sg(cmd->vha, cmd);
3805 qlt_decr_num_pend_cmds(cmd->vha);
3807 BUG_ON(cmd->sg_mapped);
3808 cmd->jiffies_at_free = get_jiffies_64();
3809 if (unlikely(cmd->free_sg))
3812 if (!sess || !sess->se_sess) {
3816 cmd->jiffies_at_free = get_jiffies_64();
3817 cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
3819 EXPORT_SYMBOL(qlt_free_cmd);
3822 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3824 static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio,
3825 struct qla_tgt_cmd *cmd, uint32_t status)
3828 struct scsi_qla_host *vha = qpair->vha;
3830 if (cmd->se_cmd.prot_op)
3831 ql_dbg(ql_dbg_tgt_dif, vha, 0xe013,
3832 "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] "
3833 "se_cmd=%p tag[%x] op %#x/%s",
3835 cmd->num_blks, &cmd->se_cmd,
3836 cmd->atio.u.isp24.exchange_addr,
3837 cmd->se_cmd.prot_op,
3838 prot_op_str(cmd->se_cmd.prot_op));
3841 struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
3844 cpu_to_le16(OF_TERM_EXCH));
3849 qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0);
3855 /* ha->hardware_lock supposed to be held on entry */
3856 static void *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
3857 struct rsp_que *rsp, uint32_t handle, void *ctio)
3860 struct req_que *req;
3861 int qid = GET_QID(handle);
3862 uint32_t h = handle & ~QLA_TGT_HANDLE_MASK;
3864 if (unlikely(h == QLA_TGT_SKIP_HANDLE))
3867 if (qid == rsp->req->id) {
3869 } else if (vha->hw->req_q_map[qid]) {
3870 ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a,
3871 "qla_target(%d): CTIO completion with different QID %d handle %x\n",
3872 vha->vp_idx, rsp->id, handle);
3873 req = vha->hw->req_q_map[qid];
3878 h &= QLA_CMD_HANDLE_MASK;
3880 if (h != QLA_TGT_NULL_HANDLE) {
3881 if (unlikely(h >= req->num_outstanding_cmds)) {
3882 ql_dbg(ql_dbg_tgt, vha, 0xe052,
3883 "qla_target(%d): Wrong handle %x received\n",
3884 vha->vp_idx, handle);
3888 cmd = (void *) req->outstanding_cmds[h];
3889 if (unlikely(cmd == NULL)) {
3890 ql_dbg(ql_dbg_async, vha, 0xe053,
3891 "qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n",
3892 vha->vp_idx, handle, req->id, rsp->id);
3895 req->outstanding_cmds[h] = NULL;
3896 } else if (ctio != NULL) {
3897 /* We can't get loop ID from CTIO7 */
3898 ql_dbg(ql_dbg_tgt, vha, 0xe054,
3899 "qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
3900 "support NULL handles\n", vha->vp_idx);
3908 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3910 static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
3911 struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio)
3913 struct qla_hw_data *ha = vha->hw;
3914 struct se_cmd *se_cmd;
3915 struct qla_tgt_cmd *cmd;
3916 struct qla_qpair *qpair = rsp->qpair;
3918 if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
3919 /* That could happen only in case of an error/reset/abort */
3920 if (status != CTIO_SUCCESS) {
3921 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
3922 "Intermediate CTIO received"
3923 " (status %x)\n", status);
3928 cmd = qlt_ctio_to_cmd(vha, rsp, handle, ctio);
3932 se_cmd = &cmd->se_cmd;
3933 cmd->cmd_sent_to_fw = 0;
3935 qlt_unmap_sg(vha, cmd);
3937 if (unlikely(status != CTIO_SUCCESS)) {
3938 switch (status & 0xFFFF) {
3939 case CTIO_INVALID_RX_ID:
3940 if (printk_ratelimit())
3941 dev_info(&vha->hw->pdev->dev,
3942 "qla_target(%d): CTIO with INVALID_RX_ID ATIO attr %x CTIO Flags %x|%x\n",
3943 vha->vp_idx, cmd->atio.u.isp24.attr,
3944 ((cmd->ctio_flags >> 9) & 0xf),
3948 case CTIO_LIP_RESET:
3949 case CTIO_TARGET_RESET:
3951 /* driver request abort via Terminate exchange */
3954 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
3955 "qla_target(%d): CTIO with "
3956 "status %#x received, state %x, se_cmd %p, "
3957 "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
3958 "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx,
3959 status, cmd->state, se_cmd);
3962 case CTIO_PORT_LOGGED_OUT:
3963 case CTIO_PORT_UNAVAILABLE:
3966 (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT;
3968 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
3969 "qla_target(%d): CTIO with %s status %x "
3970 "received (state %x, se_cmd %p)\n", vha->vp_idx,
3971 logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
3972 status, cmd->state, se_cmd);
3974 if (logged_out && cmd->sess) {
3976 * Session is already logged out, but we need
3977 * to notify initiator, who's not aware of this
3979 cmd->sess->send_els_logo = 1;
3980 ql_dbg(ql_dbg_disc, vha, 0x20f8,
3981 "%s %d %8phC post del sess\n",
3982 __func__, __LINE__, cmd->sess->port_name);
3984 qlt_schedule_sess_for_deletion(cmd->sess);
3988 case CTIO_DIF_ERROR: {
3989 struct ctio_crc_from_fw *crc =
3990 (struct ctio_crc_from_fw *)ctio;
3991 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073,
3992 "qla_target(%d): CTIO with DIF_ERROR status %x "
3993 "received (state %x, ulp_cmd %p) actual_dif[0x%llx] "
3994 "expect_dif[0x%llx]\n",
3995 vha->vp_idx, status, cmd->state, se_cmd,
3996 *((u64 *)&crc->actual_dif[0]),
3997 *((u64 *)&crc->expected_dif[0]));
3999 qlt_handle_dif_error(qpair, cmd, ctio);
4003 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
4004 "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n",
4005 vha->vp_idx, status, cmd->state, se_cmd);
4010 /* "cmd->aborted" means
4011 * cmd is already aborted/terminated, we don't
4012 * need to terminate again. The exchange is already
4013 * cleaned up/freed at FW level. Just cleanup at driver
4016 if ((cmd->state != QLA_TGT_STATE_NEED_DATA) &&
4018 cmd->trc_flags |= TRC_CTIO_ERR;
4019 if (qlt_term_ctio_exchange(qpair, ctio, cmd, status))
4024 if (cmd->state == QLA_TGT_STATE_PROCESSED) {
4025 cmd->trc_flags |= TRC_CTIO_DONE;
4026 } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
4027 cmd->state = QLA_TGT_STATE_DATA_IN;
4029 if (status == CTIO_SUCCESS)
4030 cmd->write_data_transferred = 1;
4032 ha->tgt.tgt_ops->handle_data(cmd);
4034 } else if (cmd->aborted) {
4035 cmd->trc_flags |= TRC_CTIO_ABORTED;
4036 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
4037 "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
4039 cmd->trc_flags |= TRC_CTIO_STRANGE;
4040 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
4041 "qla_target(%d): A command in state (%d) should "
4042 "not return a CTIO complete\n", vha->vp_idx, cmd->state);
4045 if (unlikely(status != CTIO_SUCCESS) &&
4047 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n");
4051 ha->tgt.tgt_ops->free_cmd(cmd);
4054 static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
4059 switch (task_codes) {
4060 case ATIO_SIMPLE_QUEUE:
4061 fcp_task_attr = TCM_SIMPLE_TAG;
4063 case ATIO_HEAD_OF_QUEUE:
4064 fcp_task_attr = TCM_HEAD_TAG;
4066 case ATIO_ORDERED_QUEUE:
4067 fcp_task_attr = TCM_ORDERED_TAG;
4069 case ATIO_ACA_QUEUE:
4070 fcp_task_attr = TCM_ACA_TAG;
4073 fcp_task_attr = TCM_SIMPLE_TAG;
4076 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
4077 "qla_target: unknown task code %x, use ORDERED instead\n",
4079 fcp_task_attr = TCM_ORDERED_TAG;
4083 return fcp_task_attr;
4087 * Process context for I/O path into tcm_qla2xxx code
4089 static void __qlt_do_work(struct qla_tgt_cmd *cmd)
4091 scsi_qla_host_t *vha = cmd->vha;
4092 struct qla_hw_data *ha = vha->hw;
4093 struct fc_port *sess = cmd->sess;
4094 struct atio_from_isp *atio = &cmd->atio;
4096 unsigned long flags;
4097 uint32_t data_length;
4098 int ret, fcp_task_attr, data_dir, bidi = 0;
4099 struct qla_qpair *qpair = cmd->qpair;
4102 cmd->trc_flags |= TRC_DO_WORK;
4105 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082,
4106 "cmd with tag %u is aborted\n",
4107 cmd->atio.u.isp24.exchange_addr);
4111 spin_lock_init(&cmd->cmd_lock);
4112 cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
4113 cmd->se_cmd.tag = atio->u.isp24.exchange_addr;
4115 if (atio->u.isp24.fcp_cmnd.rddata &&
4116 atio->u.isp24.fcp_cmnd.wrdata) {
4118 data_dir = DMA_TO_DEVICE;
4119 } else if (atio->u.isp24.fcp_cmnd.rddata)
4120 data_dir = DMA_FROM_DEVICE;
4121 else if (atio->u.isp24.fcp_cmnd.wrdata)
4122 data_dir = DMA_TO_DEVICE;
4124 data_dir = DMA_NONE;
4126 fcp_task_attr = qlt_get_fcp_task_attr(vha,
4127 atio->u.isp24.fcp_cmnd.task_attr);
4128 data_length = get_datalen_for_atio(atio);
4130 ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length,
4131 fcp_task_attr, data_dir, bidi);
4135 * Drop extra session reference from qlt_handle_cmd_for_atio().
4137 ha->tgt.tgt_ops->put_sess(sess);
4141 ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd);
4143 * cmd has not sent to target yet, so pass NULL as the second
4144 * argument to qlt_send_term_exchange() and free the memory here.
4146 cmd->trc_flags |= TRC_DO_WORK_ERR;
4147 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
4148 qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0);
4150 qlt_decr_num_pend_cmds(vha);
4151 cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
4152 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
4154 ha->tgt.tgt_ops->put_sess(sess);
4157 static void qlt_do_work(struct work_struct *work)
4159 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
4160 scsi_qla_host_t *vha = cmd->vha;
4161 unsigned long flags;
4163 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4164 list_del(&cmd->cmd_list);
4165 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4170 void qlt_clr_qp_table(struct scsi_qla_host *vha)
4172 unsigned long flags;
4173 struct qla_hw_data *ha = vha->hw;
4174 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4178 ql_log(ql_log_info, vha, 0x706c,
4179 "User update Number of Active Qpairs %d\n",
4180 ha->tgt.num_act_qpairs);
4182 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4184 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
4185 btree_remove64(&tgt->lun_qpair_map, key);
4187 ha->base_qpair->lun_cnt = 0;
4188 for (key = 0; key < ha->max_qpairs; key++)
4189 if (ha->queue_pair_map[key])
4190 ha->queue_pair_map[key]->lun_cnt = 0;
4192 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4195 static void qlt_assign_qpair(struct scsi_qla_host *vha,
4196 struct qla_tgt_cmd *cmd)
4198 struct qla_qpair *qpair, *qp;
4199 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4200 struct qla_qpair_hint *h;
4202 if (vha->flags.qpairs_available) {
4203 h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun);
4205 /* spread lun to qpair ratio evently */
4207 struct scsi_qla_host *base_vha =
4208 pci_get_drvdata(vha->hw->pdev);
4210 qpair = vha->hw->base_qpair;
4211 if (qpair->lun_cnt == 0) {
4213 h = qla_qpair_to_hint(tgt, qpair);
4215 rc = btree_insert64(&tgt->lun_qpair_map,
4216 cmd->unpacked_lun, h, GFP_ATOMIC);
4219 ql_log(ql_log_info, vha, 0xd037,
4220 "Unable to insert lun %llx into lun_qpair_map\n",
4225 lcnt = qpair->lun_cnt;
4229 list_for_each_entry(qp, &base_vha->qp_list,
4231 if (qp->lun_cnt == 0) {
4233 h = qla_qpair_to_hint(tgt, qp);
4235 rc = btree_insert64(&tgt->lun_qpair_map,
4236 cmd->unpacked_lun, h, GFP_ATOMIC);
4239 ql_log(ql_log_info, vha, 0xd038,
4240 "Unable to insert lun %llx into lun_qpair_map\n",
4246 if (qp->lun_cnt < lcnt) {
4255 h = qla_qpair_to_hint(tgt, qpair);
4257 rc = btree_insert64(&tgt->lun_qpair_map,
4258 cmd->unpacked_lun, h, GFP_ATOMIC);
4261 ql_log(ql_log_info, vha, 0xd039,
4262 "Unable to insert lun %llx into lun_qpair_map\n",
4267 h = &tgt->qphints[0];
4270 cmd->qpair = h->qpair;
4271 cmd->se_cmd.cpuid = h->cpuid;
4274 static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
4275 struct fc_port *sess,
4276 struct atio_from_isp *atio)
4278 struct qla_tgt_cmd *cmd;
4280 cmd = vha->hw->tgt.tgt_ops->get_cmd(sess);
4284 cmd->cmd_type = TYPE_TGT_CMD;
4285 memcpy(&cmd->atio, atio, sizeof(*atio));
4286 cmd->state = QLA_TGT_STATE_NEW;
4287 cmd->tgt = vha->vha_tgt.qla_tgt;
4288 qlt_incr_num_pend_cmds(vha);
4291 cmd->loop_id = sess->loop_id;
4292 cmd->conf_compl_supported = sess->conf_compl_supported;
4295 cmd->jiffies_at_alloc = get_jiffies_64();
4297 cmd->unpacked_lun = scsilun_to_int(
4298 (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
4299 qlt_assign_qpair(vha, cmd);
4300 cmd->reset_count = vha->hw->base_qpair->chip_reset;
4301 cmd->vp_idx = vha->vp_idx;
4306 /* ha->hardware_lock supposed to be held on entry */
4307 static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
4308 struct atio_from_isp *atio)
4310 struct qla_hw_data *ha = vha->hw;
4311 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4312 struct fc_port *sess;
4313 struct qla_tgt_cmd *cmd;
4314 unsigned long flags;
4317 if (unlikely(tgt->tgt_stop)) {
4318 ql_dbg(ql_dbg_io, vha, 0x3061,
4319 "New command while device %p is shutting down\n", tgt);
4323 id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
4324 if (IS_SW_RESV_ADDR(id))
4327 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
4328 if (unlikely(!sess))
4331 /* Another WWN used to have our s_id. Our PLOGI scheduled its
4332 * session deletion, but it's still in sess_del_work wq */
4333 if (sess->deleted) {
4334 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
4335 "New command while old session %p is being deleted\n",
4341 * Do kref_get() before returning + dropping qla_hw_data->hardware_lock.
4343 if (!kref_get_unless_zero(&sess->sess_kref)) {
4344 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
4345 "%s: kref_get fail, %8phC oxid %x \n",
4346 __func__, sess->port_name,
4347 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
4351 cmd = qlt_get_tag(vha, sess, atio);
4353 ql_dbg(ql_dbg_io, vha, 0x3062,
4354 "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
4355 ha->tgt.tgt_ops->put_sess(sess);
4360 cmd->trc_flags |= TRC_NEW_CMD;
4362 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4363 list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);
4364 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4366 INIT_WORK(&cmd->work, qlt_do_work);
4367 if (vha->flags.qpairs_available) {
4368 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work);
4369 } else if (ha->msix_count) {
4370 if (cmd->atio.u.isp24.fcp_cmnd.rddata)
4371 queue_work_on(smp_processor_id(), qla_tgt_wq,
4374 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq,
4377 queue_work(qla_tgt_wq, &cmd->work);
4383 /* ha->hardware_lock supposed to be held on entry */
4384 static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
4385 int fn, void *iocb, int flags)
4387 struct scsi_qla_host *vha = sess->vha;
4388 struct qla_hw_data *ha = vha->hw;
4389 struct qla_tgt_mgmt_cmd *mcmd;
4390 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4391 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
4393 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4395 ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009,
4396 "qla_target(%d): Allocation of management "
4397 "command failed, some commands and their data could "
4398 "leak\n", vha->vp_idx);
4401 memset(mcmd, 0, sizeof(*mcmd));
4405 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4406 sizeof(mcmd->orig_iocb.imm_ntfy));
4408 mcmd->tmr_func = fn;
4409 mcmd->flags = flags;
4410 mcmd->reset_count = ha->base_qpair->chip_reset;
4411 mcmd->qpair = h->qpair;
4413 mcmd->se_cmd.cpuid = h->cpuid;
4414 mcmd->unpacked_lun = lun;
4417 case QLA_TGT_LUN_RESET:
4418 case QLA_TGT_CLEAR_TS:
4419 case QLA_TGT_ABORT_TS:
4420 abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id);
4422 case QLA_TGT_CLEAR_ACA:
4423 h = qlt_find_qphint(vha, mcmd->unpacked_lun);
4424 mcmd->qpair = h->qpair;
4425 mcmd->se_cmd.cpuid = h->cpuid;
4428 case QLA_TGT_TARGET_RESET:
4429 case QLA_TGT_NEXUS_LOSS_SESS:
4430 case QLA_TGT_NEXUS_LOSS:
4431 case QLA_TGT_ABORT_ALL:
4437 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
4438 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq,
4444 /* ha->hardware_lock supposed to be held on entry */
4445 static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
4447 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4448 struct qla_hw_data *ha = vha->hw;
4449 struct fc_port *sess;
4452 unsigned long flags;
4454 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
4456 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4457 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
4458 a->u.isp24.fcp_hdr.s_id);
4459 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4462 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4464 if (sess == NULL || sess->deleted)
4467 return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
4470 /* ha->hardware_lock supposed to be held on entry */
4471 static int __qlt_abort_task(struct scsi_qla_host *vha,
4472 struct imm_ntfy_from_isp *iocb, struct fc_port *sess)
4474 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4475 struct qla_hw_data *ha = vha->hw;
4476 struct qla_tgt_mgmt_cmd *mcmd;
4480 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4482 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f,
4483 "qla_target(%d): %s: Allocation of ABORT cmd failed\n",
4484 vha->vp_idx, __func__);
4487 memset(mcmd, 0, sizeof(*mcmd));
4490 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4491 sizeof(mcmd->orig_iocb.imm_ntfy));
4494 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4495 mcmd->reset_count = ha->base_qpair->chip_reset;
4496 mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK;
4497 mcmd->qpair = ha->base_qpair;
4499 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func,
4500 le16_to_cpu(iocb->u.isp2x.seq_id));
4502 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060,
4503 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
4505 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
4512 /* ha->hardware_lock supposed to be held on entry */
4513 static int qlt_abort_task(struct scsi_qla_host *vha,
4514 struct imm_ntfy_from_isp *iocb)
4516 struct qla_hw_data *ha = vha->hw;
4517 struct fc_port *sess;
4519 unsigned long flags;
4521 loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb);
4523 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4524 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
4525 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4528 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025,
4529 "qla_target(%d): task abort for unexisting "
4530 "session\n", vha->vp_idx);
4531 return qlt_sched_sess_work(vha->vha_tgt.qla_tgt,
4532 QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb));
4535 return __qlt_abort_task(vha, iocb, sess);
4538 void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
4540 if (rc != MBS_COMMAND_COMPLETE) {
4541 ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093,
4542 "%s: se_sess %p / sess %p from"
4543 " port %8phC loop_id %#04x s_id %02x:%02x:%02x"
4544 " LOGO failed: %#x\n",
4548 fcport->port_name, fcport->loop_id,
4549 fcport->d_id.b.domain, fcport->d_id.b.area,
4550 fcport->d_id.b.al_pa, rc);
4553 fcport->logout_completed = 1;
4557 * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list)
4559 * Schedules sessions with matching port_id/loop_id but different wwn for
4560 * deletion. Returns existing session with matching wwn if present.
4564 qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
4565 port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess)
4567 struct fc_port *sess = NULL, *other_sess;
4570 *conflict_sess = NULL;
4572 list_for_each_entry(other_sess, &vha->vp_fcports, list) {
4574 other_wwn = wwn_to_u64(other_sess->port_name);
4576 if (wwn == other_wwn) {
4582 /* find other sess with nport_id collision */
4583 if (port_id.b24 == other_sess->d_id.b24) {
4584 if (loop_id != other_sess->loop_id) {
4585 ql_dbg(ql_dbg_disc, vha, 0x1000c,
4586 "Invalidating sess %p loop_id %d wwn %llx.\n",
4587 other_sess, other_sess->loop_id, other_wwn);
4590 * logout_on_delete is set by default, but another
4591 * session that has the same s_id/loop_id combo
4592 * might have cleared it when requested this session
4593 * deletion, so don't touch it
4595 qlt_schedule_sess_for_deletion(other_sess);
4598 * Another wwn used to have our s_id/loop_id
4599 * kill the session, but don't free the loop_id
4601 ql_dbg(ql_dbg_disc, vha, 0xf01b,
4602 "Invalidating sess %p loop_id %d wwn %llx.\n",
4603 other_sess, other_sess->loop_id, other_wwn);
4605 other_sess->keep_nport_handle = 1;
4606 if (other_sess->disc_state != DSC_DELETED)
4607 *conflict_sess = other_sess;
4608 qlt_schedule_sess_for_deletion(other_sess);
4613 /* find other sess with nport handle collision */
4614 if ((loop_id == other_sess->loop_id) &&
4615 (loop_id != FC_NO_LOOP_ID)) {
4616 ql_dbg(ql_dbg_disc, vha, 0x1000d,
4617 "Invalidating sess %p loop_id %d wwn %llx.\n",
4618 other_sess, other_sess->loop_id, other_wwn);
4620 /* Same loop_id but different s_id
4621 * Ok to kill and logout */
4622 qlt_schedule_sess_for_deletion(other_sess);
4629 /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */
4630 static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
4632 struct qla_tgt_sess_op *op;
4633 struct qla_tgt_cmd *cmd;
4636 unsigned long flags;
4638 key = (((u32)s_id->b.domain << 16) |
4639 ((u32)s_id->b.area << 8) |
4640 ((u32)s_id->b.al_pa));
4642 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4643 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
4644 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4646 if (op_key == key) {
4652 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
4653 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4655 if (op_key == key) {
4661 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
4662 uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
4664 if (cmd_key == key) {
4669 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4674 static int qlt_handle_login(struct scsi_qla_host *vha,
4675 struct imm_ntfy_from_isp *iocb)
4677 struct fc_port *sess = NULL, *conflict_sess = NULL;
4680 uint16_t loop_id, wd3_lo;
4682 struct qlt_plogi_ack_t *pla;
4683 unsigned long flags;
4685 lockdep_assert_held(&vha->hw->hardware_lock);
4687 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4689 port_id.b.domain = iocb->u.isp24.port_id[2];
4690 port_id.b.area = iocb->u.isp24.port_id[1];
4691 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4692 port_id.b.rsvd_1 = 0;
4694 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4696 /* Mark all stale commands sitting in qla_tgt_wq for deletion */
4697 abort_cmds_for_s_id(vha, &port_id);
4700 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
4701 sess = qlt_find_sess_invalidate_other(vha, wwn,
4702 port_id, loop_id, &conflict_sess);
4703 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
4705 ql_dbg(ql_dbg_disc, vha, 0xffff,
4706 "%s %d Term INOT due to WWN=0 lid=%d, NportID %06X ",
4707 __func__, __LINE__, loop_id, port_id.b24);
4708 qlt_send_term_imm_notif(vha, iocb, 1);
4712 if (IS_SW_RESV_ADDR(port_id)) {
4717 pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
4719 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
4720 "%s %d %8phC Term INOT due to mem alloc fail",
4722 iocb->u.isp24.port_name);
4723 qlt_send_term_imm_notif(vha, iocb, 1);
4727 if (conflict_sess) {
4728 conflict_sess->login_gen++;
4729 qlt_plogi_ack_link(vha, pla, conflict_sess,
4730 QLT_PLOGI_LINK_CONFLICT);
4735 ql_dbg(ql_dbg_disc, vha, 0xffff,
4736 "%s %d %8phC post new sess\n",
4737 __func__, __LINE__, iocb->u.isp24.port_name);
4738 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
4739 qla24xx_post_newsess_work(vha, &port_id,
4740 iocb->u.isp24.port_name,
4741 iocb->u.isp24.u.plogi.node_name,
4744 qla24xx_post_newsess_work(vha, &port_id,
4745 iocb->u.isp24.port_name, NULL,
4751 if (sess->disc_state == DSC_UPD_FCPORT) {
4755 * Remote port registration is still going on from
4756 * previous login. Allow it to finish before we
4757 * accept the new login.
4759 sess->next_disc_state = DSC_DELETE_PEND;
4760 sec = jiffies_to_msecs(jiffies -
4761 sess->jiffies_at_registration) / 1000;
4762 if (sess->sec_since_registration < sec && sec &&
4764 sess->sec_since_registration = sec;
4765 ql_dbg(ql_dbg_disc, vha, 0xffff,
4766 "%s %8phC - Slow Rport registration (%d Sec)\n",
4767 __func__, sess->port_name, sec);
4770 if (!conflict_sess) {
4771 list_del(&pla->list);
4772 kmem_cache_free(qla_tgt_plogi_cachep, pla);
4775 qlt_send_term_imm_notif(vha, iocb, 1);
4779 qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
4780 sess->d_id = port_id;
4783 if (iocb->u.isp24.status_subcode == ELS_PRLI) {
4784 sess->fw_login_state = DSC_LS_PRLI_PEND;
4786 sess->loop_id = loop_id;
4787 sess->d_id = port_id;
4788 sess->fw_login_state = DSC_LS_PRLI_PEND;
4789 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4792 sess->conf_compl_supported = 1;
4794 if ((wd3_lo & BIT_4) == 0)
4795 sess->port_type = FCT_INITIATOR;
4797 sess->port_type = FCT_TARGET;
4800 sess->fw_login_state = DSC_LS_PLOGI_PEND;
4803 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4804 "%s %d %8phC DS %d\n",
4805 __func__, __LINE__, sess->port_name, sess->disc_state);
4807 switch (sess->disc_state) {
4809 case DSC_LOGIN_PEND:
4810 qlt_plogi_ack_unref(vha, pla);
4815 * Under normal circumstances we want to release nport handle
4816 * during LOGO process to avoid nport handle leaks inside FW.
4817 * The exception is when LOGO is done while another PLOGI with
4818 * the same nport handle is waiting as might be the case here.
4819 * Note: there is always a possibily of a race where session
4820 * deletion has already started for other reasons (e.g. ACL
4821 * removal) and now PLOGI arrives:
4822 * 1. if PLOGI arrived in FW after nport handle has been freed,
4823 * FW must have assigned this PLOGI a new/same handle and we
4824 * can proceed ACK'ing it as usual when session deletion
4826 * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
4827 * bit reached it, the handle has now been released. We'll
4828 * get an error when we ACK this PLOGI. Nothing will be sent
4829 * back to initiator. Initiator should eventually retry
4830 * PLOGI and situation will correct itself.
4832 sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
4833 (sess->d_id.b24 == port_id.b24));
4835 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4836 "%s %d %8phC post del sess\n",
4837 __func__, __LINE__, sess->port_name);
4840 qlt_schedule_sess_for_deletion(sess);
4848 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
4850 static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
4851 struct imm_ntfy_from_isp *iocb)
4853 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4854 struct qla_hw_data *ha = vha->hw;
4855 struct fc_port *sess = NULL, *conflict_sess = NULL;
4861 unsigned long flags;
4863 lockdep_assert_held(&ha->hardware_lock);
4865 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4867 port_id.b.domain = iocb->u.isp24.port_id[2];
4868 port_id.b.area = iocb->u.isp24.port_id[1];
4869 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4870 port_id.b.rsvd_1 = 0;
4872 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4874 ql_dbg(ql_dbg_disc, vha, 0xf026,
4875 "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n",
4876 vha->vp_idx, iocb->u.isp24.port_id[2],
4877 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
4878 iocb->u.isp24.status_subcode, loop_id,
4879 iocb->u.isp24.port_name);
4881 /* res = 1 means ack at the end of thread
4882 * res = 0 means ack async/later.
4884 switch (iocb->u.isp24.status_subcode) {
4886 res = qlt_handle_login(vha, iocb);
4891 sess = qla2x00_find_fcport_by_wwpn(vha,
4892 iocb->u.isp24.port_name, 1);
4894 if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) {
4895 ql_dbg(ql_dbg_disc, vha, 0xffff,
4896 "%s %d %8phC Term PRLI due to PLOGI ACK not completed\n",
4898 iocb->u.isp24.port_name);
4899 qlt_send_term_imm_notif(vha, iocb, 1);
4903 res = qlt_handle_login(vha, iocb);
4907 if (IS_SW_RESV_ADDR(port_id)) {
4912 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4915 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
4916 sess = qlt_find_sess_invalidate_other(vha, wwn, port_id,
4917 loop_id, &conflict_sess);
4918 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
4921 if (conflict_sess) {
4922 switch (conflict_sess->disc_state) {
4924 case DSC_DELETE_PEND:
4927 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
4928 "PRLI with conflicting sess %p port %8phC\n",
4929 conflict_sess, conflict_sess->port_name);
4930 conflict_sess->fw_login_state =
4931 DSC_LS_PORT_UNAVAIL;
4932 qlt_send_term_imm_notif(vha, iocb, 1);
4939 bool delete = false;
4942 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
4943 switch (sess->fw_login_state) {
4944 case DSC_LS_PLOGI_PEND:
4945 case DSC_LS_PLOGI_COMP:
4946 case DSC_LS_PRLI_COMP:
4953 switch (sess->disc_state) {
4954 case DSC_UPD_FCPORT:
4955 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
4958 sec = jiffies_to_msecs(jiffies -
4959 sess->jiffies_at_registration)/1000;
4960 if (sess->sec_since_registration < sec && sec &&
4962 sess->sec_since_registration = sec;
4963 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
4964 "%s %8phC : Slow Rport registration(%d Sec)\n",
4965 __func__, sess->port_name, sec);
4967 qlt_send_term_imm_notif(vha, iocb, 1);
4970 case DSC_LOGIN_PEND:
4972 case DSC_LOGIN_COMPLETE:
4981 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
4984 * Impatient initiator sent PRLI before last
4985 * PLOGI could finish. Will force him to re-try,
4986 * while last one finishes.
4988 ql_log(ql_log_warn, sess->vha, 0xf095,
4989 "sess %p PRLI received, before plogi ack.\n",
4991 qlt_send_term_imm_notif(vha, iocb, 1);
4997 * This shouldn't happen under normal circumstances,
4998 * since we have deleted the old session during PLOGI
5000 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096,
5001 "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n",
5002 sess->loop_id, sess, iocb->u.isp24.nport_handle);
5005 sess->loop_id = loop_id;
5006 sess->d_id = port_id;
5007 sess->fw_login_state = DSC_LS_PRLI_PEND;
5010 sess->conf_compl_supported = 1;
5012 if ((wd3_lo & BIT_4) == 0)
5013 sess->port_type = FCT_INITIATOR;
5015 sess->port_type = FCT_TARGET;
5017 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
5019 res = 1; /* send notify ack */
5021 /* Make session global (not used in fabric mode) */
5022 if (ha->current_topology != ISP_CFG_F) {
5024 ql_dbg(ql_dbg_disc, vha, 0x20fa,
5025 "%s %d %8phC post nack\n",
5026 __func__, __LINE__, sess->port_name);
5027 qla24xx_post_nack_work(vha, sess, iocb,
5031 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5032 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5033 qla2xxx_wake_dpc(vha);
5037 ql_dbg(ql_dbg_disc, vha, 0x20fb,
5038 "%s %d %8phC post nack\n",
5039 __func__, __LINE__, sess->port_name);
5040 qla24xx_post_nack_work(vha, sess, iocb,
5048 if (le16_to_cpu(iocb->u.isp24.flags) &
5049 NOTIFY24XX_FLAGS_GLOBAL_TPRLO) {
5051 qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS);
5058 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5059 sess = qla2x00_find_fcport_by_loopid(vha, loop_id);
5060 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5064 sess->fw_login_state = DSC_LS_LOGO_PEND;
5065 sess->logo_ack_needed = 1;
5066 memcpy(sess->iocb, iocb, IOCB_SIZE);
5069 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5071 ql_dbg(ql_dbg_disc, vha, 0x20fc,
5072 "%s: logo %llx res %d sess %p ",
5073 __func__, wwn, res, sess);
5076 * cmd went upper layer, look for qlt_xmit_tm_rsp()
5077 * for LOGO_ACK & sess delete
5082 /* cmd did not go to upper layer. */
5084 qlt_schedule_sess_for_deletion(sess);
5087 /* else logo will be ack */
5093 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5095 if (tgt->link_reinit_iocb_pending) {
5096 qlt_send_notify_ack(ha->base_qpair,
5097 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5098 tgt->link_reinit_iocb_pending = 0;
5101 sess = qla2x00_find_fcport_by_wwpn(vha,
5102 iocb->u.isp24.port_name, 1);
5104 ql_dbg(ql_dbg_disc, vha, 0x20fd,
5105 "sess %p lid %d|%d DS %d LS %d\n",
5106 sess, sess->loop_id, loop_id,
5107 sess->disc_state, sess->fw_login_state);
5110 res = 1; /* send notify ack */
5114 case ELS_FLOGI: /* should never happen */
5116 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061,
5117 "qla_target(%d): Unsupported ELS command %x "
5118 "received\n", vha->vp_idx, iocb->u.isp24.status_subcode);
5119 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5123 ql_dbg(ql_dbg_disc, vha, 0xf026,
5124 "qla_target(%d): Exit ELS opcode: 0x%02x res %d\n",
5125 vha->vp_idx, iocb->u.isp24.status_subcode, res);
5131 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5133 static void qlt_handle_imm_notify(struct scsi_qla_host *vha,
5134 struct imm_ntfy_from_isp *iocb)
5136 struct qla_hw_data *ha = vha->hw;
5137 uint32_t add_flags = 0;
5138 int send_notify_ack = 1;
5141 lockdep_assert_held(&ha->hardware_lock);
5143 status = le16_to_cpu(iocb->u.isp2x.status);
5145 case IMM_NTFY_LIP_RESET:
5147 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032,
5148 "qla_target(%d): LIP reset (loop %#x), subcode %x\n",
5149 vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle),
5150 iocb->u.isp24.status_subcode);
5152 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5153 send_notify_ack = 0;
5157 case IMM_NTFY_LIP_LINK_REINIT:
5159 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5161 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033,
5162 "qla_target(%d): LINK REINIT (loop %#x, "
5163 "subcode %x)\n", vha->vp_idx,
5164 le16_to_cpu(iocb->u.isp24.nport_handle),
5165 iocb->u.isp24.status_subcode);
5166 if (tgt->link_reinit_iocb_pending) {
5167 qlt_send_notify_ack(ha->base_qpair,
5168 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5170 memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb));
5171 tgt->link_reinit_iocb_pending = 1;
5173 * QLogic requires to wait after LINK REINIT for possible
5174 * PDISC or ADISC ELS commands
5176 send_notify_ack = 0;
5180 case IMM_NTFY_PORT_LOGOUT:
5181 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034,
5182 "qla_target(%d): Port logout (loop "
5183 "%#x, subcode %x)\n", vha->vp_idx,
5184 le16_to_cpu(iocb->u.isp24.nport_handle),
5185 iocb->u.isp24.status_subcode);
5187 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0)
5188 send_notify_ack = 0;
5189 /* The sessions will be cleared in the callback, if needed */
5192 case IMM_NTFY_GLBL_TPRLO:
5193 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035,
5194 "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status);
5195 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5196 send_notify_ack = 0;
5197 /* The sessions will be cleared in the callback, if needed */
5200 case IMM_NTFY_PORT_CONFIG:
5201 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036,
5202 "qla_target(%d): Port config changed (%x)\n", vha->vp_idx,
5204 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5205 send_notify_ack = 0;
5206 /* The sessions will be cleared in the callback, if needed */
5209 case IMM_NTFY_GLBL_LOGO:
5210 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
5211 "qla_target(%d): Link failure detected\n",
5213 /* I_T nexus loss */
5214 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5215 send_notify_ack = 0;
5218 case IMM_NTFY_IOCB_OVERFLOW:
5219 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b,
5220 "qla_target(%d): Cannot provide requested "
5221 "capability (IOCB overflowed the immediate notify "
5222 "resource count)\n", vha->vp_idx);
5225 case IMM_NTFY_ABORT_TASK:
5226 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037,
5227 "qla_target(%d): Abort Task (S %08x I %#x -> "
5228 "L %#x)\n", vha->vp_idx,
5229 le16_to_cpu(iocb->u.isp2x.seq_id),
5230 GET_TARGET_ID(ha, (struct atio_from_isp *)iocb),
5231 le16_to_cpu(iocb->u.isp2x.lun));
5232 if (qlt_abort_task(vha, iocb) == 0)
5233 send_notify_ack = 0;
5236 case IMM_NTFY_RESOURCE:
5237 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c,
5238 "qla_target(%d): Out of resources, host %ld\n",
5239 vha->vp_idx, vha->host_no);
5242 case IMM_NTFY_MSG_RX:
5243 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038,
5244 "qla_target(%d): Immediate notify task %x\n",
5245 vha->vp_idx, iocb->u.isp2x.task_flags);
5249 if (qlt_24xx_handle_els(vha, iocb) == 0)
5250 send_notify_ack = 0;
5253 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d,
5254 "qla_target(%d): Received unknown immediate "
5255 "notify status %x\n", vha->vp_idx, status);
5259 if (send_notify_ack)
5260 qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0,
5265 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5266 * This function sends busy to ISP 2xxx or 24xx.
5268 static int __qlt_send_busy(struct qla_qpair *qpair,
5269 struct atio_from_isp *atio, uint16_t status)
5271 struct scsi_qla_host *vha = qpair->vha;
5272 struct ctio7_to_24xx *ctio24;
5273 struct qla_hw_data *ha = vha->hw;
5275 struct fc_port *sess = NULL;
5276 unsigned long flags;
5280 id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
5282 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5283 sess = qla2x00_find_fcport_by_nportid(vha, &id, 1);
5284 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5286 qlt_send_term_exchange(qpair, NULL, atio, 1, 0);
5289 /* Sending marker isn't necessary, since we called from ISR */
5291 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
5293 ql_dbg(ql_dbg_io, vha, 0x3063,
5294 "qla_target(%d): %s failed: unable to allocate "
5295 "request packet", vha->vp_idx, __func__);
5299 qpair->tgt_counters.num_q_full_sent++;
5300 pkt->entry_count = 1;
5301 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
5303 ctio24 = (struct ctio7_to_24xx *)pkt;
5304 ctio24->entry_type = CTIO_TYPE7;
5305 ctio24->nport_handle = sess->loop_id;
5306 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
5307 ctio24->vp_index = vha->vp_idx;
5308 ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
5309 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
5310 temp = (atio->u.isp24.attr << 9) |
5311 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
5312 CTIO7_FLAGS_DONT_RET_CTIO;
5313 ctio24->u.status1.flags = cpu_to_le16(temp);
5315 * CTIO from fw w/o se_cmd doesn't provide enough info to retry it,
5316 * if the explicit conformation is used.
5318 ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id);
5319 ctio24->u.status1.scsi_status = cpu_to_le16(status);
5321 ctio24->u.status1.residual = get_datalen_for_atio(atio);
5323 if (ctio24->u.status1.residual != 0)
5324 ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER;
5326 /* Memory Barrier */
5328 if (qpair->reqq_start_iocbs)
5329 qpair->reqq_start_iocbs(qpair);
5331 qla2x00_start_iocbs(vha, qpair->req);
5336 * This routine is used to allocate a command for either a QFull condition
5337 * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go
5341 qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
5342 struct atio_from_isp *atio, uint16_t status, int qfull)
5344 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5345 struct qla_hw_data *ha = vha->hw;
5346 struct fc_port *sess;
5347 struct qla_tgt_cmd *cmd;
5348 unsigned long flags;
5350 if (unlikely(tgt->tgt_stop)) {
5351 ql_dbg(ql_dbg_io, vha, 0x300a,
5352 "New command while device %p is shutting down\n", tgt);
5356 if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) {
5357 vha->hw->tgt.num_qfull_cmds_dropped++;
5358 if (vha->hw->tgt.num_qfull_cmds_dropped >
5359 vha->qla_stats.stat_max_qfull_cmds_dropped)
5360 vha->qla_stats.stat_max_qfull_cmds_dropped =
5361 vha->hw->tgt.num_qfull_cmds_dropped;
5363 ql_dbg(ql_dbg_io, vha, 0x3068,
5364 "qla_target(%d): %s: QFull CMD dropped[%d]\n",
5365 vha->vp_idx, __func__,
5366 vha->hw->tgt.num_qfull_cmds_dropped);
5368 qlt_chk_exch_leak_thresh_hold(vha);
5372 sess = ha->tgt.tgt_ops->find_sess_by_s_id
5373 (vha, atio->u.isp24.fcp_hdr.s_id);
5377 cmd = ha->tgt.tgt_ops->get_cmd(sess);
5379 ql_dbg(ql_dbg_io, vha, 0x3009,
5380 "qla_target(%d): %s: Allocation of cmd failed\n",
5381 vha->vp_idx, __func__);
5383 vha->hw->tgt.num_qfull_cmds_dropped++;
5384 if (vha->hw->tgt.num_qfull_cmds_dropped >
5385 vha->qla_stats.stat_max_qfull_cmds_dropped)
5386 vha->qla_stats.stat_max_qfull_cmds_dropped =
5387 vha->hw->tgt.num_qfull_cmds_dropped;
5389 qlt_chk_exch_leak_thresh_hold(vha);
5393 qlt_incr_num_pend_cmds(vha);
5394 INIT_LIST_HEAD(&cmd->cmd_list);
5395 memcpy(&cmd->atio, atio, sizeof(*atio));
5397 cmd->tgt = vha->vha_tgt.qla_tgt;
5399 cmd->reset_count = ha->base_qpair->chip_reset;
5401 cmd->qpair = ha->base_qpair;
5405 /* NOTE: borrowing the state field to carry the status */
5406 cmd->state = status;
5408 cmd->term_exchg = 1;
5410 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5411 list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list);
5413 vha->hw->tgt.num_qfull_cmds_alloc++;
5414 if (vha->hw->tgt.num_qfull_cmds_alloc >
5415 vha->qla_stats.stat_max_qfull_cmds_alloc)
5416 vha->qla_stats.stat_max_qfull_cmds_alloc =
5417 vha->hw->tgt.num_qfull_cmds_alloc;
5418 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5422 qlt_free_qfull_cmds(struct qla_qpair *qpair)
5424 struct scsi_qla_host *vha = qpair->vha;
5425 struct qla_hw_data *ha = vha->hw;
5426 unsigned long flags;
5427 struct qla_tgt_cmd *cmd, *tcmd;
5428 struct list_head free_list, q_full_list;
5431 if (list_empty(&ha->tgt.q_full_list))
5434 INIT_LIST_HEAD(&free_list);
5435 INIT_LIST_HEAD(&q_full_list);
5437 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5438 if (list_empty(&ha->tgt.q_full_list)) {
5439 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5443 list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list);
5444 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5446 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
5447 list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) {
5449 /* cmd->state is a borrowed field to hold status */
5450 rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state);
5451 else if (cmd->term_exchg)
5452 rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio);
5458 ql_dbg(ql_dbg_io, vha, 0x3006,
5459 "%s: busy sent for ox_id[%04x]\n", __func__,
5460 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5461 else if (cmd->term_exchg)
5462 ql_dbg(ql_dbg_io, vha, 0x3007,
5463 "%s: Term exchg sent for ox_id[%04x]\n", __func__,
5464 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5466 ql_dbg(ql_dbg_io, vha, 0x3008,
5467 "%s: Unexpected cmd in QFull list %p\n", __func__,
5470 list_del(&cmd->cmd_list);
5471 list_add_tail(&cmd->cmd_list, &free_list);
5473 /* piggy back on hardware_lock for protection */
5474 vha->hw->tgt.num_qfull_cmds_alloc--;
5476 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
5480 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
5481 list_del(&cmd->cmd_list);
5482 /* This cmd was never sent to TCM. There is no need
5483 * to schedule free or call free_cmd
5488 if (!list_empty(&q_full_list)) {
5489 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5490 list_splice(&q_full_list, &vha->hw->tgt.q_full_list);
5491 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5498 qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio,
5502 struct scsi_qla_host *vha = qpair->vha;
5504 rc = __qlt_send_busy(qpair, atio, status);
5506 qlt_alloc_qfull_cmd(vha, atio, status, 1);
5510 qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
5511 struct atio_from_isp *atio, uint8_t ha_locked)
5513 struct qla_hw_data *ha = vha->hw;
5514 unsigned long flags;
5516 if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
5520 spin_lock_irqsave(&ha->hardware_lock, flags);
5521 qlt_send_busy(qpair, atio, qla_sam_status);
5523 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5528 /* ha->hardware_lock supposed to be held on entry */
5529 /* called via callback from qla2xxx */
5530 static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
5531 struct atio_from_isp *atio, uint8_t ha_locked)
5533 struct qla_hw_data *ha = vha->hw;
5534 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5536 unsigned long flags = 0;
5538 if (unlikely(tgt == NULL)) {
5539 ql_dbg(ql_dbg_tgt, vha, 0x3064,
5540 "ATIO pkt, but no tgt (ha %p)", ha);
5544 * In tgt_stop mode we also should allow all requests to pass.
5545 * Otherwise, some commands can stuck.
5548 tgt->atio_irq_cmd_count++;
5550 switch (atio->u.raw.entry_type) {
5552 if (unlikely(atio->u.isp24.exchange_addr ==
5553 ATIO_EXCHANGE_ADDRESS_UNKNOWN)) {
5554 ql_dbg(ql_dbg_io, vha, 0x3065,
5555 "qla_target(%d): ATIO_TYPE7 "
5556 "received with UNKNOWN exchange address, "
5557 "sending QUEUE_FULL\n", vha->vp_idx);
5559 spin_lock_irqsave(&ha->hardware_lock, flags);
5560 qlt_send_busy(ha->base_qpair, atio, qla_sam_status);
5562 spin_unlock_irqrestore(&ha->hardware_lock,
5567 if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) {
5568 rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair,
5571 tgt->atio_irq_cmd_count--;
5574 rc = qlt_handle_cmd_for_atio(vha, atio);
5576 rc = qlt_handle_task_mgmt(vha, atio);
5578 if (unlikely(rc != 0)) {
5580 spin_lock_irqsave(&ha->hardware_lock, flags);
5583 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5584 "qla_target: Unable to send command to target\n");
5587 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5588 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5589 qlt_send_term_exchange(ha->base_qpair, NULL,
5593 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5594 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5596 qlt_send_busy(ha->base_qpair, atio,
5600 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5601 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5603 qlt_send_busy(ha->base_qpair, atio,
5608 spin_unlock_irqrestore(&ha->hardware_lock,
5613 case IMMED_NOTIFY_TYPE:
5615 if (unlikely(atio->u.isp2x.entry_status != 0)) {
5616 ql_dbg(ql_dbg_tgt, vha, 0xe05b,
5617 "qla_target(%d): Received ATIO packet %x "
5618 "with error status %x\n", vha->vp_idx,
5619 atio->u.raw.entry_type,
5620 atio->u.isp2x.entry_status);
5623 ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
5626 spin_lock_irqsave(&ha->hardware_lock, flags);
5627 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio);
5629 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5634 ql_dbg(ql_dbg_tgt, vha, 0xe05c,
5635 "qla_target(%d): Received unknown ATIO atio "
5636 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
5640 tgt->atio_irq_cmd_count--;
5644 * qpair lock is assume to be held
5645 * rc = 0 : send terminate & abts respond
5646 * rc != 0: do not send term & abts respond
5648 static int qlt_chk_unresolv_exchg(struct scsi_qla_host *vha,
5649 struct qla_qpair *qpair, struct abts_resp_from_24xx_fw *entry)
5651 struct qla_hw_data *ha = vha->hw;
5655 * Detect unresolved exchange. If the same ABTS is unable
5656 * to terminate an existing command and the same ABTS loops
5657 * between FW & Driver, then force FW dump. Under 1 jiff,
5658 * we should see multiple loops.
5660 if (qpair->retry_term_exchg_addr == entry->exchange_addr_to_abort &&
5661 qpair->retry_term_jiff == jiffies) {
5662 /* found existing exchange */
5663 qpair->retry_term_cnt++;
5664 if (qpair->retry_term_cnt >= 5) {
5666 qpair->retry_term_cnt = 0;
5667 ql_log(ql_log_warn, vha, 0xffff,
5668 "Unable to send ABTS Respond. Dumping firmware.\n");
5669 ql_dump_buffer(ql_dbg_tgt_mgt + ql_dbg_buffer,
5670 vha, 0xffff, (uint8_t *)entry, sizeof(*entry));
5672 if (qpair == ha->base_qpair)
5673 ha->isp_ops->fw_dump(vha);
5675 qla2xxx_dump_fw(vha);
5677 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
5678 qla2xxx_wake_dpc(vha);
5680 } else if (qpair->retry_term_jiff != jiffies) {
5681 qpair->retry_term_exchg_addr = entry->exchange_addr_to_abort;
5682 qpair->retry_term_cnt = 0;
5683 qpair->retry_term_jiff = jiffies;
5690 static void qlt_handle_abts_completion(struct scsi_qla_host *vha,
5691 struct rsp_que *rsp, response_t *pkt)
5693 struct abts_resp_from_24xx_fw *entry =
5694 (struct abts_resp_from_24xx_fw *)pkt;
5695 u32 h = pkt->handle & ~QLA_TGT_HANDLE_MASK;
5696 struct qla_tgt_mgmt_cmd *mcmd;
5697 struct qla_hw_data *ha = vha->hw;
5699 mcmd = qlt_ctio_to_cmd(vha, rsp, pkt->handle, pkt);
5700 if (mcmd == NULL && h != QLA_TGT_SKIP_HANDLE) {
5701 ql_dbg(ql_dbg_async, vha, 0xe064,
5702 "qla_target(%d): ABTS Comp without mcmd\n",
5709 vha->vha_tgt.qla_tgt->abts_resp_expected--;
5711 ql_dbg(ql_dbg_tgt, vha, 0xe038,
5712 "ABTS_RESP_24XX: compl_status %x\n",
5713 entry->compl_status);
5715 if (le16_to_cpu(entry->compl_status) != ABTS_RESP_COMPL_SUCCESS) {
5716 if ((entry->error_subcode1 == 0x1E) &&
5717 (entry->error_subcode2 == 0)) {
5718 if (qlt_chk_unresolv_exchg(vha, rsp->qpair, entry)) {
5719 ha->tgt.tgt_ops->free_mcmd(mcmd);
5722 qlt_24xx_retry_term_exchange(vha, rsp->qpair,
5725 ql_dbg(ql_dbg_tgt, vha, 0xe063,
5726 "qla_target(%d): ABTS_RESP_24XX failed %x (subcode %x:%x)",
5727 vha->vp_idx, entry->compl_status,
5728 entry->error_subcode1,
5729 entry->error_subcode2);
5730 ha->tgt.tgt_ops->free_mcmd(mcmd);
5733 ha->tgt.tgt_ops->free_mcmd(mcmd);
5737 /* ha->hardware_lock supposed to be held on entry */
5738 /* called via callback from qla2xxx */
5739 static void qlt_response_pkt(struct scsi_qla_host *vha,
5740 struct rsp_que *rsp, response_t *pkt)
5742 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5744 if (unlikely(tgt == NULL)) {
5745 ql_dbg(ql_dbg_tgt, vha, 0xe05d,
5746 "qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
5747 vha->vp_idx, pkt->entry_type, vha->hw);
5752 * In tgt_stop mode we also should allow all requests to pass.
5753 * Otherwise, some commands can stuck.
5756 switch (pkt->entry_type) {
5760 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
5762 qlt_do_ctio_completion(vha, rsp, entry->handle,
5763 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5768 case ACCEPT_TGT_IO_TYPE:
5770 struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
5773 if (atio->u.isp2x.status !=
5774 cpu_to_le16(ATIO_CDB_VALID)) {
5775 ql_dbg(ql_dbg_tgt, vha, 0xe05e,
5776 "qla_target(%d): ATIO with error "
5777 "status %x received\n", vha->vp_idx,
5778 le16_to_cpu(atio->u.isp2x.status));
5782 rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1);
5786 rc = qlt_handle_cmd_for_atio(vha, atio);
5787 if (unlikely(rc != 0)) {
5790 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5791 "qla_target: Unable to send command to target\n");
5794 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5795 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5796 qlt_send_term_exchange(rsp->qpair, NULL,
5800 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5801 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5803 qlt_send_busy(rsp->qpair, atio,
5807 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5808 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5810 qlt_send_busy(rsp->qpair, atio,
5818 case CONTINUE_TGT_IO_TYPE:
5820 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5822 qlt_do_ctio_completion(vha, rsp, entry->handle,
5823 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5830 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5832 qlt_do_ctio_completion(vha, rsp, entry->handle,
5833 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5838 case IMMED_NOTIFY_TYPE:
5839 ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n");
5840 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt);
5843 case NOTIFY_ACK_TYPE:
5844 if (tgt->notify_ack_expected > 0) {
5845 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
5847 ql_dbg(ql_dbg_tgt, vha, 0xe036,
5848 "NOTIFY_ACK seq %08x status %x\n",
5849 le16_to_cpu(entry->u.isp2x.seq_id),
5850 le16_to_cpu(entry->u.isp2x.status));
5851 tgt->notify_ack_expected--;
5852 if (entry->u.isp2x.status !=
5853 cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
5854 ql_dbg(ql_dbg_tgt, vha, 0xe061,
5855 "qla_target(%d): NOTIFY_ACK "
5856 "failed %x\n", vha->vp_idx,
5857 le16_to_cpu(entry->u.isp2x.status));
5860 ql_dbg(ql_dbg_tgt, vha, 0xe062,
5861 "qla_target(%d): Unexpected NOTIFY_ACK received\n",
5866 case ABTS_RECV_24XX:
5867 ql_dbg(ql_dbg_tgt, vha, 0xe037,
5868 "ABTS_RECV_24XX: instance %d\n", vha->vp_idx);
5869 qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt);
5872 case ABTS_RESP_24XX:
5873 if (tgt->abts_resp_expected > 0) {
5874 qlt_handle_abts_completion(vha, rsp, pkt);
5876 ql_dbg(ql_dbg_tgt, vha, 0xe064,
5877 "qla_target(%d): Unexpected ABTS_RESP_24XX "
5878 "received\n", vha->vp_idx);
5883 ql_dbg(ql_dbg_tgt, vha, 0xe065,
5884 "qla_target(%d): Received unknown response pkt "
5885 "type %x\n", vha->vp_idx, pkt->entry_type);
5892 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5894 void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
5897 struct qla_hw_data *ha = vha->hw;
5898 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5901 if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
5904 if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
5908 * In tgt_stop mode we also should allow all requests to pass.
5909 * Otherwise, some commands can stuck.
5914 case MBA_RESET: /* Reset */
5915 case MBA_SYSTEM_ERR: /* System Error */
5916 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
5917 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
5918 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a,
5919 "qla_target(%d): System error async event %#x "
5920 "occurred", vha->vp_idx, code);
5922 case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */
5923 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
5928 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b,
5929 "qla_target(%d): Async LOOP_UP occurred "
5930 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx,
5931 le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
5932 le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
5933 if (tgt->link_reinit_iocb_pending) {
5934 qlt_send_notify_ack(ha->base_qpair,
5935 (void *)&tgt->link_reinit_iocb,
5937 tgt->link_reinit_iocb_pending = 0;
5942 case MBA_LIP_OCCURRED:
5945 case MBA_RSCN_UPDATE:
5946 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c,
5947 "qla_target(%d): Async event %#x occurred "
5948 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code,
5949 le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
5950 le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
5953 case MBA_REJECTED_FCP_CMD:
5954 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017,
5955 "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)",
5957 le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
5958 le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
5960 if (le16_to_cpu(mailbox[3]) == 1) {
5961 /* exchange starvation. */
5962 vha->hw->exch_starvation++;
5963 if (vha->hw->exch_starvation > 5) {
5964 ql_log(ql_log_warn, vha, 0xd03a,
5965 "Exchange starvation-. Resetting RISC\n");
5967 vha->hw->exch_starvation = 0;
5968 if (IS_P3P_TYPE(vha->hw))
5969 set_bit(FCOE_CTX_RESET_NEEDED,
5972 set_bit(ISP_ABORT_NEEDED,
5974 qla2xxx_wake_dpc(vha);
5979 case MBA_PORT_UPDATE:
5980 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d,
5981 "qla_target(%d): Port update async event %#x "
5982 "occurred: updating the ports database (m[0]=%x, m[1]=%x, "
5983 "m[2]=%x, m[3]=%x)", vha->vp_idx, code,
5984 le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
5985 le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
5987 login_code = le16_to_cpu(mailbox[2]);
5988 if (login_code == 0x4) {
5989 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e,
5990 "Async MB 2: Got PLOGI Complete\n");
5991 vha->hw->exch_starvation = 0;
5992 } else if (login_code == 0x7)
5993 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f,
5994 "Async MB 2: Port Logged Out\n");
6002 static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
6005 fc_port_t *fcport, *tfcp, *del;
6007 unsigned long flags;
6010 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6012 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
6013 "qla_target(%d): Allocation of tmp FC port failed",
6018 fcport->loop_id = loop_id;
6020 rc = qla24xx_gpdb_wait(vha, fcport, 0);
6021 if (rc != QLA_SUCCESS) {
6022 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070,
6023 "qla_target(%d): Failed to retrieve fcport "
6024 "information -- get_port_database() returned %x "
6025 "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
6031 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
6032 tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1);
6035 tfcp->d_id = fcport->d_id;
6036 tfcp->port_type = fcport->port_type;
6037 tfcp->supported_classes = fcport->supported_classes;
6038 tfcp->flags |= fcport->flags;
6039 tfcp->scan_state = QLA_FCPORT_FOUND;
6044 if (vha->hw->current_topology == ISP_CFG_F)
6045 fcport->flags |= FCF_FABRIC_DEVICE;
6047 list_add_tail(&fcport->list, &vha->vp_fcports);
6048 if (!IS_SW_RESV_ADDR(fcport->d_id))
6049 vha->fcport_count++;
6050 fcport->login_gen++;
6051 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
6052 fcport->login_succ = 1;
6056 fcport->deleted = 0;
6057 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6059 switch (vha->host->active_mode) {
6060 case MODE_INITIATOR:
6063 if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) {
6064 qla24xx_sched_upd_fcport(fcport);
6066 ql_dbg(ql_dbg_disc, vha, 0x20ff,
6067 "%s %d %8phC post gpsc fcp_cnt %d\n",
6068 __func__, __LINE__, fcport->port_name, vha->fcport_count);
6069 qla24xx_post_gpsc_work(vha, fcport);
6079 qla2x00_free_fcport(del);
6084 /* Must be called under tgt_mutex */
6085 static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha,
6088 struct fc_port *sess = NULL;
6089 fc_port_t *fcport = NULL;
6090 int rc, global_resets;
6091 uint16_t loop_id = 0;
6093 if (s_id.domain == 0xFF && s_id.area == 0xFC) {
6095 * This is Domain Controller, so it should be
6096 * OK to drop SCSI commands from it.
6098 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042,
6099 "Unable to find initiator with S_ID %x:%x:%x",
6100 s_id.domain, s_id.area, s_id.al_pa);
6104 mutex_lock(&vha->vha_tgt.tgt_mutex);
6108 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
6110 rc = qla24xx_get_loop_id(vha, s_id, &loop_id);
6112 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6114 ql_log(ql_log_info, vha, 0xf071,
6115 "qla_target(%d): Unable to find "
6116 "initiator with S_ID %x:%x:%x",
6117 vha->vp_idx, s_id.domain, s_id.area, s_id.al_pa);
6119 if (rc == -ENOENT) {
6120 qlt_port_logo_t logo;
6122 logo.id = be_to_port_id(s_id);
6124 qlt_send_first_logo(vha, &logo);
6130 fcport = qlt_get_port_database(vha, loop_id);
6132 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6136 if (global_resets !=
6137 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) {
6138 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043,
6139 "qla_target(%d): global reset during session discovery "
6140 "(counter was %d, new %d), retrying", vha->vp_idx,
6142 atomic_read(&vha->vha_tgt.
6143 qla_tgt->tgt_global_resets_count));
6147 sess = qlt_create_sess(vha, fcport, true);
6149 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6154 static void qlt_abort_work(struct qla_tgt *tgt,
6155 struct qla_tgt_sess_work_param *prm)
6157 struct scsi_qla_host *vha = tgt->vha;
6158 struct qla_hw_data *ha = vha->hw;
6159 struct fc_port *sess = NULL;
6160 unsigned long flags = 0, flags2 = 0;
6164 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6169 s_id = le_id_to_be(prm->abts.fcp_hdr_le.s_id);
6171 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6173 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6175 sess = qlt_make_local_sess(vha, s_id);
6176 /* sess has got an extra creation ref */
6178 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6182 if (sess->deleted) {
6187 if (!kref_get_unless_zero(&sess->sess_kref)) {
6188 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c,
6189 "%s: kref_get fail %8phC \n",
6190 __func__, sess->port_name);
6196 rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
6197 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6199 ha->tgt.tgt_ops->put_sess(sess);
6206 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6209 spin_lock_irqsave(&ha->hardware_lock, flags);
6210 qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts,
6211 FCP_TMF_REJECTED, false);
6212 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6215 static void qlt_tmr_work(struct qla_tgt *tgt,
6216 struct qla_tgt_sess_work_param *prm)
6218 struct atio_from_isp *a = &prm->tm_iocb2;
6219 struct scsi_qla_host *vha = tgt->vha;
6220 struct qla_hw_data *ha = vha->hw;
6221 struct fc_port *sess;
6222 unsigned long flags;
6229 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6234 s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id;
6235 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6237 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6239 sess = qlt_make_local_sess(vha, s_id);
6240 /* sess has got an extra creation ref */
6242 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6246 if (sess->deleted) {
6250 if (!kref_get_unless_zero(&sess->sess_kref)) {
6251 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020,
6252 "%s: kref_get fail %8phC\n",
6253 __func__, sess->port_name);
6259 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
6261 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
6263 rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
6264 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6266 ha->tgt.tgt_ops->put_sess(sess);
6273 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6275 qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0);
6278 static void qlt_sess_work_fn(struct work_struct *work)
6280 struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
6281 struct scsi_qla_host *vha = tgt->vha;
6282 unsigned long flags;
6284 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt);
6286 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6287 while (!list_empty(&tgt->sess_works_list)) {
6288 struct qla_tgt_sess_work_param *prm = list_entry(
6289 tgt->sess_works_list.next, typeof(*prm),
6290 sess_works_list_entry);
6293 * This work can be scheduled on several CPUs at time, so we
6294 * must delete the entry to eliminate double processing
6296 list_del(&prm->sess_works_list_entry);
6298 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6300 switch (prm->type) {
6301 case QLA_TGT_SESS_WORK_ABORT:
6302 qlt_abort_work(tgt, prm);
6304 case QLA_TGT_SESS_WORK_TM:
6305 qlt_tmr_work(tgt, prm);
6312 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6316 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6319 /* Must be called under tgt_host_action_mutex */
6320 int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
6322 struct qla_tgt *tgt;
6324 struct qla_qpair_hint *h;
6326 if (!QLA_TGT_MODE_ENABLED())
6329 if (!IS_TGT_MODE_CAPABLE(ha)) {
6330 ql_log(ql_log_warn, base_vha, 0xe070,
6331 "This adapter does not support target mode.\n");
6335 ql_dbg(ql_dbg_tgt, base_vha, 0xe03b,
6336 "Registering target for host %ld(%p).\n", base_vha->host_no, ha);
6338 BUG_ON(base_vha->vha_tgt.qla_tgt != NULL);
6340 tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL);
6342 ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
6343 "Unable to allocate struct qla_tgt\n");
6347 tgt->qphints = kcalloc(ha->max_qpairs + 1,
6348 sizeof(struct qla_qpair_hint),
6350 if (!tgt->qphints) {
6352 ql_log(ql_log_warn, base_vha, 0x0197,
6353 "Unable to allocate qpair hints.\n");
6357 if (!(base_vha->host->hostt->supported_mode & MODE_TARGET))
6358 base_vha->host->hostt->supported_mode |= MODE_TARGET;
6360 rc = btree_init64(&tgt->lun_qpair_map);
6362 kfree(tgt->qphints);
6364 ql_log(ql_log_info, base_vha, 0x0198,
6365 "Unable to initialize lun_qpair_map btree\n");
6368 h = &tgt->qphints[0];
6369 h->qpair = ha->base_qpair;
6370 INIT_LIST_HEAD(&h->hint_elem);
6371 h->cpuid = ha->base_qpair->cpuid;
6372 list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list);
6374 for (i = 0; i < ha->max_qpairs; i++) {
6375 unsigned long flags;
6377 struct qla_qpair *qpair = ha->queue_pair_map[i];
6379 h = &tgt->qphints[i + 1];
6380 INIT_LIST_HEAD(&h->hint_elem);
6383 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
6384 list_add_tail(&h->hint_elem, &qpair->hints_list);
6385 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
6386 h->cpuid = qpair->cpuid;
6391 tgt->vha = base_vha;
6392 init_waitqueue_head(&tgt->waitQ);
6393 INIT_LIST_HEAD(&tgt->del_sess_list);
6394 spin_lock_init(&tgt->sess_work_lock);
6395 INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
6396 INIT_LIST_HEAD(&tgt->sess_works_list);
6397 atomic_set(&tgt->tgt_global_resets_count, 0);
6399 base_vha->vha_tgt.qla_tgt = tgt;
6401 ql_dbg(ql_dbg_tgt, base_vha, 0xe067,
6402 "qla_target(%d): using 64 Bit PCI addressing",
6405 tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3);
6407 mutex_lock(&qla_tgt_mutex);
6408 list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist);
6409 mutex_unlock(&qla_tgt_mutex);
6411 if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target)
6412 ha->tgt.tgt_ops->add_target(base_vha);
6417 /* Must be called under tgt_host_action_mutex */
6418 int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
6420 if (!vha->vha_tgt.qla_tgt)
6423 if (vha->fc_vport) {
6424 qlt_release(vha->vha_tgt.qla_tgt);
6428 /* free left over qfull cmds */
6429 qlt_init_term_exchange(vha);
6431 ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
6433 qlt_release(vha->vha_tgt.qla_tgt);
6438 void qlt_remove_target_resources(struct qla_hw_data *ha)
6440 struct scsi_qla_host *node;
6443 btree_for_each_safe32(&ha->tgt.host_map, key, node)
6444 btree_remove32(&ha->tgt.host_map, key);
6446 btree_destroy32(&ha->tgt.host_map);
6449 static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn,
6452 pr_debug("qla2xxx HW vha->node_name: %8phC\n", vha->node_name);
6453 pr_debug("qla2xxx HW vha->port_name: %8phC\n", vha->port_name);
6454 put_unaligned_be64(wwpn, b);
6455 pr_debug("qla2xxx passed configfs WWPN: %8phC\n", b);
6459 * qla_tgt_lport_register - register lport with external module
6461 * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data
6462 * @phys_wwpn: physical port WWPN
6463 * @npiv_wwpn: NPIV WWPN
6464 * @npiv_wwnn: NPIV WWNN
6465 * @callback: lport initialization callback for tcm_qla2xxx code
6467 int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn,
6468 u64 npiv_wwpn, u64 npiv_wwnn,
6469 int (*callback)(struct scsi_qla_host *, void *, u64, u64))
6471 struct qla_tgt *tgt;
6472 struct scsi_qla_host *vha;
6473 struct qla_hw_data *ha;
6474 struct Scsi_Host *host;
6475 unsigned long flags;
6479 mutex_lock(&qla_tgt_mutex);
6480 list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) {
6488 if (!(host->hostt->supported_mode & MODE_TARGET))
6491 if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
6494 spin_lock_irqsave(&ha->hardware_lock, flags);
6495 if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) {
6496 pr_debug("MODE_TARGET already active on qla2xxx(%d)\n",
6498 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6501 if (tgt->tgt_stop) {
6502 pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n",
6504 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6507 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6509 if (!scsi_host_get(host)) {
6510 ql_dbg(ql_dbg_tgt, vha, 0xe068,
6511 "Unable to scsi_host_get() for"
6512 " qla2xxx scsi_host\n");
6515 qlt_lport_dump(vha, phys_wwpn, b);
6517 if (memcmp(vha->port_name, b, WWN_SIZE)) {
6518 scsi_host_put(host);
6521 rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn);
6523 scsi_host_put(host);
6525 mutex_unlock(&qla_tgt_mutex);
6528 mutex_unlock(&qla_tgt_mutex);
6532 EXPORT_SYMBOL(qlt_lport_register);
6535 * qla_tgt_lport_deregister - Degister lport
6537 * @vha: Registered scsi_qla_host pointer
6539 void qlt_lport_deregister(struct scsi_qla_host *vha)
6541 struct qla_hw_data *ha = vha->hw;
6542 struct Scsi_Host *sh = vha->host;
6544 * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data
6546 vha->vha_tgt.target_lport_ptr = NULL;
6547 ha->tgt.tgt_ops = NULL;
6549 * Release the Scsi_Host reference for the underlying qla2xxx host
6553 EXPORT_SYMBOL(qlt_lport_deregister);
6555 /* Must be called under HW lock */
6556 void qlt_set_mode(struct scsi_qla_host *vha)
6558 switch (vha->qlini_mode) {
6559 case QLA2XXX_INI_MODE_DISABLED:
6560 case QLA2XXX_INI_MODE_EXCLUSIVE:
6561 vha->host->active_mode = MODE_TARGET;
6563 case QLA2XXX_INI_MODE_ENABLED:
6564 vha->host->active_mode = MODE_INITIATOR;
6566 case QLA2XXX_INI_MODE_DUAL:
6567 vha->host->active_mode = MODE_DUAL;
6574 /* Must be called under HW lock */
6575 static void qlt_clear_mode(struct scsi_qla_host *vha)
6577 switch (vha->qlini_mode) {
6578 case QLA2XXX_INI_MODE_DISABLED:
6579 vha->host->active_mode = MODE_UNKNOWN;
6581 case QLA2XXX_INI_MODE_EXCLUSIVE:
6582 vha->host->active_mode = MODE_INITIATOR;
6584 case QLA2XXX_INI_MODE_ENABLED:
6585 case QLA2XXX_INI_MODE_DUAL:
6586 vha->host->active_mode = MODE_INITIATOR;
6594 * qla_tgt_enable_vha - NO LOCK HELD
6596 * host_reset, bring up w/ Target Mode Enabled
6599 qlt_enable_vha(struct scsi_qla_host *vha)
6601 struct qla_hw_data *ha = vha->hw;
6602 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6603 unsigned long flags;
6604 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6607 ql_dbg(ql_dbg_tgt, vha, 0xe069,
6608 "Unable to locate qla_tgt pointer from"
6609 " struct qla_hw_data\n");
6613 if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
6616 if (ha->tgt.num_act_qpairs > ha->max_qpairs)
6617 ha->tgt.num_act_qpairs = ha->max_qpairs;
6618 spin_lock_irqsave(&ha->hardware_lock, flags);
6619 tgt->tgt_stopped = 0;
6621 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6623 mutex_lock(&ha->optrom_mutex);
6624 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021,
6627 qla24xx_disable_vp(vha);
6628 qla24xx_enable_vp(vha);
6630 set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
6631 qla2xxx_wake_dpc(base_vha);
6632 WARN_ON_ONCE(qla2x00_wait_for_hba_online(base_vha) !=
6635 mutex_unlock(&ha->optrom_mutex);
6637 EXPORT_SYMBOL(qlt_enable_vha);
6640 * qla_tgt_disable_vha - NO LOCK HELD
6642 * Disable Target Mode and reset the adapter
6644 static void qlt_disable_vha(struct scsi_qla_host *vha)
6646 struct qla_hw_data *ha = vha->hw;
6647 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6648 unsigned long flags;
6651 ql_dbg(ql_dbg_tgt, vha, 0xe06a,
6652 "Unable to locate qla_tgt pointer from"
6653 " struct qla_hw_data\n");
6658 spin_lock_irqsave(&ha->hardware_lock, flags);
6659 qlt_clear_mode(vha);
6660 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6662 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6663 qla2xxx_wake_dpc(vha);
6666 * We are expecting the offline state.
6667 * QLA_FUNCTION_FAILED means that adapter is offline.
6669 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
6670 ql_dbg(ql_dbg_tgt, vha, 0xe081,
6671 "adapter is offline\n");
6675 * Called from qla_init.c:qla24xx_vport_create() contex to setup
6676 * the target mode specific struct scsi_qla_host and struct qla_hw_data
6680 qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
6682 vha->vha_tgt.qla_tgt = NULL;
6684 mutex_init(&vha->vha_tgt.tgt_mutex);
6685 mutex_init(&vha->vha_tgt.tgt_host_action_mutex);
6687 qlt_clear_mode(vha);
6690 * NOTE: Currently the value is kept the same for <24xx and
6691 * >=24xx ISPs. If it is necessary to change it,
6692 * the check should be added for specific ISPs,
6693 * assigning the value appropriately.
6695 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
6697 qlt_add_target(ha, vha);
6701 qlt_rff_id(struct scsi_qla_host *vha)
6705 * FC-4 Feature bit 0 indicates target functionality to the name server.
6707 if (qla_tgt_mode_enabled(vha)) {
6708 fc4_feature = BIT_0;
6709 } else if (qla_ini_mode_enabled(vha)) {
6710 fc4_feature = BIT_1;
6711 } else if (qla_dual_mode_enabled(vha))
6712 fc4_feature = BIT_0 | BIT_1;
6718 * qlt_init_atio_q_entries() - Initializes ATIO queue entries.
6721 * Beginning of ATIO ring has initialization control block already built
6722 * by nvram config routine.
6724 * Returns 0 on success.
6727 qlt_init_atio_q_entries(struct scsi_qla_host *vha)
6729 struct qla_hw_data *ha = vha->hw;
6731 struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring;
6733 if (qla_ini_mode_enabled(vha))
6736 for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) {
6737 pkt->u.raw.signature = ATIO_PROCESSED;
6744 * qlt_24xx_process_atio_queue() - Process ATIO queue entries.
6745 * @ha: SCSI driver HA context
6748 qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked)
6750 struct qla_hw_data *ha = vha->hw;
6751 struct atio_from_isp *pkt;
6754 if (!ha->flags.fw_started)
6757 while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
6758 fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
6759 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6760 cnt = pkt->u.raw.entry_count;
6762 if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
6764 * This packet is corrupted. The header + payload
6765 * can not be trusted. There is no point in passing
6768 ql_log(ql_log_warn, vha, 0xd03c,
6769 "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
6770 &pkt->u.isp24.fcp_hdr.s_id,
6771 be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
6772 le32_to_cpu(pkt->u.isp24.exchange_addr), pkt);
6774 adjust_corrupted_atio(pkt);
6775 qlt_send_term_exchange(ha->base_qpair, NULL, pkt,
6778 qlt_24xx_atio_pkt_all_vps(vha,
6779 (struct atio_from_isp *)pkt, ha_locked);
6782 for (i = 0; i < cnt; i++) {
6783 ha->tgt.atio_ring_index++;
6784 if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) {
6785 ha->tgt.atio_ring_index = 0;
6786 ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
6788 ha->tgt.atio_ring_ptr++;
6790 pkt->u.raw.signature = ATIO_PROCESSED;
6791 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6796 /* Adjust ring index */
6797 WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index);
6801 qlt_24xx_config_rings(struct scsi_qla_host *vha)
6803 struct qla_hw_data *ha = vha->hw;
6804 struct qla_msix_entry *msix = &ha->msix_entries[2];
6805 struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb;
6807 if (!QLA_TGT_MODE_ENABLED())
6810 WRT_REG_DWORD(ISP_ATIO_Q_IN(vha), 0);
6811 WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), 0);
6812 RD_REG_DWORD(ISP_ATIO_Q_OUT(vha));
6814 if (ha->flags.msix_enabled) {
6815 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
6816 if (IS_QLA2071(ha)) {
6817 /* 4 ports Baker: Enable Interrupt Handshake */
6819 icb->firmware_options_2 |= BIT_26;
6821 icb->msix_atio = cpu_to_le16(msix->entry);
6822 icb->firmware_options_2 &= ~BIT_26;
6824 ql_dbg(ql_dbg_init, vha, 0xf072,
6825 "Registering ICB vector 0x%x for atio que.\n",
6830 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
6832 icb->firmware_options_2 |= BIT_26;
6833 ql_dbg(ql_dbg_init, vha, 0xf072,
6834 "%s: Use INTx for ATIOQ.\n", __func__);
6840 qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
6842 struct qla_hw_data *ha = vha->hw;
6845 if (!QLA_TGT_MODE_ENABLED())
6848 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6849 if (!ha->tgt.saved_set) {
6850 /* We save only once */
6851 ha->tgt.saved_exchange_count = nv->exchange_count;
6852 ha->tgt.saved_firmware_options_1 =
6853 nv->firmware_options_1;
6854 ha->tgt.saved_firmware_options_2 =
6855 nv->firmware_options_2;
6856 ha->tgt.saved_firmware_options_3 =
6857 nv->firmware_options_3;
6858 ha->tgt.saved_set = 1;
6861 if (qla_tgt_mode_enabled(vha))
6862 nv->exchange_count = cpu_to_le16(0xFFFF);
6864 nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
6866 /* Enable target mode */
6867 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
6869 /* Disable ini mode, if requested */
6870 if (qla_tgt_mode_enabled(vha))
6871 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
6873 /* Disable Full Login after LIP */
6874 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6875 /* Enable initial LIP */
6876 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
6877 if (ql2xtgt_tape_enable)
6878 /* Enable FC Tape support */
6879 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
6881 /* Disable FC Tape support */
6882 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
6884 /* Disable Full Login after LIP */
6885 nv->host_p &= cpu_to_le32(~BIT_10);
6888 * clear BIT 15 explicitly as we have seen at least
6889 * a couple of instances where this was set and this
6890 * was causing the firmware to not be initialized.
6892 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
6893 /* Enable target PRLI control */
6894 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
6896 if (IS_QLA25XX(ha)) {
6897 /* Change Loop-prefer to Pt-Pt */
6898 tmp = ~(BIT_4|BIT_5|BIT_6);
6899 nv->firmware_options_2 &= cpu_to_le32(tmp);
6901 nv->firmware_options_2 |= cpu_to_le32(tmp);
6904 if (ha->tgt.saved_set) {
6905 nv->exchange_count = ha->tgt.saved_exchange_count;
6906 nv->firmware_options_1 =
6907 ha->tgt.saved_firmware_options_1;
6908 nv->firmware_options_2 =
6909 ha->tgt.saved_firmware_options_2;
6910 nv->firmware_options_3 =
6911 ha->tgt.saved_firmware_options_3;
6916 if (ha->base_qpair->enable_class_2) {
6917 if (vha->flags.init_done)
6918 fc_host_supported_classes(vha->host) =
6919 FC_COS_CLASS2 | FC_COS_CLASS3;
6921 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
6923 if (vha->flags.init_done)
6924 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
6926 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
6931 qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha,
6932 struct init_cb_24xx *icb)
6934 struct qla_hw_data *ha = vha->hw;
6936 if (!QLA_TGT_MODE_ENABLED())
6939 if (ha->tgt.node_name_set) {
6940 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
6941 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
6946 qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
6948 struct qla_hw_data *ha = vha->hw;
6951 if (!QLA_TGT_MODE_ENABLED())
6954 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6955 if (!ha->tgt.saved_set) {
6956 /* We save only once */
6957 ha->tgt.saved_exchange_count = nv->exchange_count;
6958 ha->tgt.saved_firmware_options_1 =
6959 nv->firmware_options_1;
6960 ha->tgt.saved_firmware_options_2 =
6961 nv->firmware_options_2;
6962 ha->tgt.saved_firmware_options_3 =
6963 nv->firmware_options_3;
6964 ha->tgt.saved_set = 1;
6967 if (qla_tgt_mode_enabled(vha))
6968 nv->exchange_count = cpu_to_le16(0xFFFF);
6970 nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
6972 /* Enable target mode */
6973 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
6975 /* Disable ini mode, if requested */
6976 if (qla_tgt_mode_enabled(vha))
6977 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
6978 /* Disable Full Login after LIP */
6979 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6980 /* Enable initial LIP */
6981 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
6983 * clear BIT 15 explicitly as we have seen at
6984 * least a couple of instances where this was set
6985 * and this was causing the firmware to not be
6988 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
6989 if (ql2xtgt_tape_enable)
6990 /* Enable FC tape support */
6991 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
6993 /* Disable FC tape support */
6994 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
6996 /* Disable Full Login after LIP */
6997 nv->host_p &= cpu_to_le32(~BIT_10);
6998 /* Enable target PRLI control */
6999 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
7001 /* Change Loop-prefer to Pt-Pt */
7002 tmp = ~(BIT_4|BIT_5|BIT_6);
7003 nv->firmware_options_2 &= cpu_to_le32(tmp);
7005 nv->firmware_options_2 |= cpu_to_le32(tmp);
7007 if (ha->tgt.saved_set) {
7008 nv->exchange_count = ha->tgt.saved_exchange_count;
7009 nv->firmware_options_1 =
7010 ha->tgt.saved_firmware_options_1;
7011 nv->firmware_options_2 =
7012 ha->tgt.saved_firmware_options_2;
7013 nv->firmware_options_3 =
7014 ha->tgt.saved_firmware_options_3;
7019 if (ha->base_qpair->enable_class_2) {
7020 if (vha->flags.init_done)
7021 fc_host_supported_classes(vha->host) =
7022 FC_COS_CLASS2 | FC_COS_CLASS3;
7024 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
7026 if (vha->flags.init_done)
7027 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
7029 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
7034 qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha,
7035 struct init_cb_81xx *icb)
7037 struct qla_hw_data *ha = vha->hw;
7039 if (!QLA_TGT_MODE_ENABLED())
7042 if (ha->tgt.node_name_set) {
7043 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
7044 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
7049 qlt_83xx_iospace_config(struct qla_hw_data *ha)
7051 if (!QLA_TGT_MODE_ENABLED())
7054 ha->msix_count += 1; /* For ATIO Q */
7059 qlt_modify_vp_config(struct scsi_qla_host *vha,
7060 struct vp_config_entry_24xx *vpmod)
7062 /* enable target mode. Bit5 = 1 => disable */
7063 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
7064 vpmod->options_idx1 &= ~BIT_5;
7066 /* Disable ini mode, if requested. bit4 = 1 => disable */
7067 if (qla_tgt_mode_enabled(vha))
7068 vpmod->options_idx1 &= ~BIT_4;
7072 qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha)
7076 if (!QLA_TGT_MODE_ENABLED())
7079 if ((ql2xenablemsix == 0) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
7081 ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in;
7082 ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out;
7084 ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in;
7085 ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out;
7088 mutex_init(&base_vha->vha_tgt.tgt_mutex);
7089 mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex);
7091 INIT_LIST_HEAD(&base_vha->unknown_atio_list);
7092 INIT_DELAYED_WORK(&base_vha->unknown_atio_work,
7093 qlt_unknown_atio_work_fn);
7095 qlt_clear_mode(base_vha);
7097 rc = btree_init32(&ha->tgt.host_map);
7099 ql_log(ql_log_info, base_vha, 0xd03d,
7100 "Unable to initialize ha->host_map btree\n");
7102 qlt_update_vp_map(base_vha, SET_VP_IDX);
7106 qla83xx_msix_atio_q(int irq, void *dev_id)
7108 struct rsp_que *rsp;
7109 scsi_qla_host_t *vha;
7110 struct qla_hw_data *ha;
7111 unsigned long flags;
7113 rsp = (struct rsp_que *) dev_id;
7115 vha = pci_get_drvdata(ha->pdev);
7117 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7119 qlt_24xx_process_atio_queue(vha, 0);
7121 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7127 qlt_handle_abts_recv_work(struct work_struct *work)
7129 struct qla_tgt_sess_op *op = container_of(work,
7130 struct qla_tgt_sess_op, work);
7131 scsi_qla_host_t *vha = op->vha;
7132 struct qla_hw_data *ha = vha->hw;
7133 unsigned long flags;
7135 if (qla2x00_reset_active(vha) ||
7136 (op->chip_reset != ha->base_qpair->chip_reset))
7139 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7140 qlt_24xx_process_atio_queue(vha, 0);
7141 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7143 spin_lock_irqsave(&ha->hardware_lock, flags);
7144 qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio);
7145 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7151 qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp,
7154 struct qla_tgt_sess_op *op;
7156 op = kzalloc(sizeof(*op), GFP_ATOMIC);
7159 /* do not reach for ATIO queue here. This is best effort err
7160 * recovery at this point.
7162 qlt_response_pkt_all_vps(vha, rsp, pkt);
7166 memcpy(&op->atio, pkt, sizeof(*pkt));
7168 op->chip_reset = vha->hw->base_qpair->chip_reset;
7170 INIT_WORK(&op->work, qlt_handle_abts_recv_work);
7171 queue_work(qla_tgt_wq, &op->work);
7176 qlt_mem_alloc(struct qla_hw_data *ha)
7178 if (!QLA_TGT_MODE_ENABLED())
7181 ha->tgt.tgt_vp_map = kcalloc(MAX_MULTI_ID_FABRIC,
7182 sizeof(struct qla_tgt_vp_map),
7184 if (!ha->tgt.tgt_vp_map)
7187 ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev,
7188 (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp),
7189 &ha->tgt.atio_dma, GFP_KERNEL);
7190 if (!ha->tgt.atio_ring) {
7191 kfree(ha->tgt.tgt_vp_map);
7198 qlt_mem_free(struct qla_hw_data *ha)
7200 if (!QLA_TGT_MODE_ENABLED())
7203 if (ha->tgt.atio_ring) {
7204 dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) *
7205 sizeof(struct atio_from_isp), ha->tgt.atio_ring,
7208 ha->tgt.atio_ring = NULL;
7209 ha->tgt.atio_dma = 0;
7210 kfree(ha->tgt.tgt_vp_map);
7211 ha->tgt.tgt_vp_map = NULL;
7214 /* vport_slock to be held by the caller */
7216 qlt_update_vp_map(struct scsi_qla_host *vha, int cmd)
7222 if (!QLA_TGT_MODE_ENABLED())
7225 key = vha->d_id.b24;
7229 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha;
7232 slot = btree_lookup32(&vha->hw->tgt.host_map, key);
7234 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018,
7235 "Save vha in host_map %p %06x\n", vha, key);
7236 rc = btree_insert32(&vha->hw->tgt.host_map,
7237 key, vha, GFP_ATOMIC);
7239 ql_log(ql_log_info, vha, 0xd03e,
7240 "Unable to insert s_id into host_map: %06x\n",
7244 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019,
7245 "replace existing vha in host_map %p %06x\n", vha, key);
7246 btree_update32(&vha->hw->tgt.host_map, key, vha);
7249 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL;
7252 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a,
7253 "clear vha in host_map %p %06x\n", vha, key);
7254 slot = btree_lookup32(&vha->hw->tgt.host_map, key);
7256 btree_remove32(&vha->hw->tgt.host_map, key);
7262 void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id)
7265 if (!vha->d_id.b24) {
7267 qlt_update_vp_map(vha, SET_AL_PA);
7268 } else if (vha->d_id.b24 != id.b24) {
7269 qlt_update_vp_map(vha, RESET_AL_PA);
7271 qlt_update_vp_map(vha, SET_AL_PA);
7275 static int __init qlt_parse_ini_mode(void)
7277 if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0)
7278 ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
7279 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0)
7280 ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED;
7281 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0)
7282 ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED;
7283 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0)
7284 ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL;
7291 int __init qlt_init(void)
7295 BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
7296 BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
7298 if (!qlt_parse_ini_mode()) {
7299 ql_log(ql_log_fatal, NULL, 0xe06b,
7300 "qlt_parse_ini_mode() failed\n");
7304 if (!QLA_TGT_MODE_ENABLED())
7307 qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep",
7308 sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct
7309 qla_tgt_mgmt_cmd), 0, NULL);
7310 if (!qla_tgt_mgmt_cmd_cachep) {
7311 ql_log(ql_log_fatal, NULL, 0xd04b,
7312 "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
7316 qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep",
7317 sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t),
7320 if (!qla_tgt_plogi_cachep) {
7321 ql_log(ql_log_fatal, NULL, 0xe06d,
7322 "kmem_cache_create for qla_tgt_plogi_cachep failed\n");
7324 goto out_mgmt_cmd_cachep;
7327 qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab,
7328 mempool_free_slab, qla_tgt_mgmt_cmd_cachep);
7329 if (!qla_tgt_mgmt_cmd_mempool) {
7330 ql_log(ql_log_fatal, NULL, 0xe06e,
7331 "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
7333 goto out_plogi_cachep;
7336 qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0);
7338 ql_log(ql_log_fatal, NULL, 0xe06f,
7339 "alloc_workqueue for qla_tgt_wq failed\n");
7341 goto out_cmd_mempool;
7344 * Return 1 to signal that initiator-mode is being disabled
7346 return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0;
7349 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7351 kmem_cache_destroy(qla_tgt_plogi_cachep);
7352 out_mgmt_cmd_cachep:
7353 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
7359 if (!QLA_TGT_MODE_ENABLED())
7362 destroy_workqueue(qla_tgt_wq);
7363 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7364 kmem_cache_destroy(qla_tgt_plogi_cachep);
7365 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);