2 * qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx
4 * based on qla2x00t.c code:
6 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
7 * Copyright (C) 2004 - 2005 Leonid Stoljar
8 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
9 * Copyright (C) 2006 - 2010 ID7 Ltd.
11 * Forward port and refactoring to modern qla2xxx and target/configfs
13 * Copyright (C) 2010-2013 Nicholas A. Bellinger <nab@kernel.org>
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation, version 2
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/types.h>
29 #include <linux/blkdev.h>
30 #include <linux/interrupt.h>
31 #include <linux/pci.h>
32 #include <linux/delay.h>
33 #include <linux/list.h>
34 #include <linux/workqueue.h>
35 #include <asm/unaligned.h>
36 #include <scsi/scsi.h>
37 #include <scsi/scsi_host.h>
38 #include <scsi/scsi_tcq.h>
39 #include <target/target_core_base.h>
40 #include <target/target_core_fabric.h>
43 #include "qla_target.h"
45 static int ql2xtgt_tape_enable;
46 module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR);
47 MODULE_PARM_DESC(ql2xtgt_tape_enable,
48 "Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
50 static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
51 module_param(qlini_mode, charp, S_IRUGO);
52 MODULE_PARM_DESC(qlini_mode,
53 "Determines when initiator mode will be enabled. Possible values: "
54 "\"exclusive\" - initiator mode will be enabled on load, "
55 "disabled on enabling target mode and then on disabling target mode "
57 "\"disabled\" - initiator mode will never be enabled; "
58 "\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
60 "\"enabled\" (default) - initiator mode will always stay enabled.");
62 static int ql_dm_tgt_ex_pct = 0;
63 module_param(ql_dm_tgt_ex_pct, int, S_IRUGO|S_IWUSR);
64 MODULE_PARM_DESC(ql_dm_tgt_ex_pct,
65 "For Dual Mode (qlini_mode=dual), this parameter determines "
66 "the percentage of exchanges/cmds FW will allocate resources "
70 module_param(ql2xuctrlirq, int, 0644);
71 MODULE_PARM_DESC(ql2xuctrlirq,
72 "User to control IRQ placement via smp_affinity."
73 "Valid with qlini_mode=disabled."
74 "1(default): enable");
76 int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
78 static int qla_sam_status = SAM_STAT_BUSY;
79 static int tc_sam_status = SAM_STAT_TASK_SET_FULL; /* target core */
82 * From scsi/fc/fc_fcp.h
84 enum fcp_resp_rsp_codes {
86 FCP_DATA_LEN_INVALID = 1,
87 FCP_CMND_FIELDS_INVALID = 2,
88 FCP_DATA_PARAM_MISMATCH = 3,
91 FCP_TMF_INVALID_LUN = 9,
95 * fc_pri_ta from scsi/fc/fc_fcp.h
97 #define FCP_PTA_SIMPLE 0 /* simple task attribute */
98 #define FCP_PTA_HEADQ 1 /* head of queue task attribute */
99 #define FCP_PTA_ORDERED 2 /* ordered task attribute */
100 #define FCP_PTA_ACA 4 /* auto. contingent allegiance */
101 #define FCP_PTA_MASK 7 /* mask for task attribute field */
102 #define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */
103 #define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */
106 * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which
107 * must be called under HW lock and could unlock/lock it inside.
108 * It isn't an issue, since in the current implementation on the time when
109 * those functions are called:
111 * - Either context is IRQ and only IRQ handler can modify HW data,
112 * including rings related fields,
114 * - Or access to target mode variables from struct qla_tgt doesn't
115 * cross those functions boundaries, except tgt_stop, which
116 * additionally protected by irq_cmd_count.
118 /* Predefs for callbacks handed to qla2xxx LLD */
119 static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
120 struct atio_from_isp *pkt, uint8_t);
121 static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp,
123 static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
124 int fn, void *iocb, int flags);
125 static void qlt_send_term_exchange(struct qla_qpair *, struct qla_tgt_cmd
126 *cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort);
127 static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
128 struct atio_from_isp *atio, uint16_t status, int qfull);
129 static void qlt_disable_vha(struct scsi_qla_host *vha);
130 static void qlt_clear_tgt_db(struct qla_tgt *tgt);
131 static void qlt_send_notify_ack(struct qla_qpair *qpair,
132 struct imm_ntfy_from_isp *ntfy,
133 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
134 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan);
135 static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
136 struct imm_ntfy_from_isp *imm, int ha_locked);
137 static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
138 fc_port_t *fcport, bool local);
139 void qlt_unreg_sess(struct fc_port *sess);
140 static void qlt_24xx_handle_abts(struct scsi_qla_host *,
141 struct abts_recv_from_24xx *);
142 static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *,
148 static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
149 struct kmem_cache *qla_tgt_plogi_cachep;
150 static mempool_t *qla_tgt_mgmt_cmd_mempool;
151 static struct workqueue_struct *qla_tgt_wq;
152 static DEFINE_MUTEX(qla_tgt_mutex);
153 static LIST_HEAD(qla_tgt_glist);
155 static const char *prot_op_str(u32 prot_op)
158 case TARGET_PROT_NORMAL: return "NORMAL";
159 case TARGET_PROT_DIN_INSERT: return "DIN_INSERT";
160 case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT";
161 case TARGET_PROT_DIN_STRIP: return "DIN_STRIP";
162 case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP";
163 case TARGET_PROT_DIN_PASS: return "DIN_PASS";
164 case TARGET_PROT_DOUT_PASS: return "DOUT_PASS";
165 default: return "UNKNOWN";
169 /* This API intentionally takes dest as a parameter, rather than returning
170 * int value to avoid caller forgetting to issue wmb() after the store */
171 void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
173 scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
174 *dest = atomic_inc_return(&base_vha->generation_tick);
179 /* Might release hw lock, then reaquire!! */
180 static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
182 /* Send marker if required */
183 if (unlikely(vha->marker_needed != 0)) {
184 int rc = qla2x00_issue_marker(vha, vha_locked);
185 if (rc != QLA_SUCCESS) {
186 ql_dbg(ql_dbg_tgt, vha, 0xe03d,
187 "qla_target(%d): issue_marker() failed\n",
196 struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha,
199 struct scsi_qla_host *host;
202 if ((vha->d_id.b.area == d_id[1]) && (vha->d_id.b.domain == d_id[0]) &&
203 (vha->d_id.b.al_pa == d_id[2]))
206 key = (uint32_t)d_id[0] << 16;
207 key |= (uint32_t)d_id[1] << 8;
208 key |= (uint32_t)d_id[2];
210 host = btree_lookup32(&vha->hw->tgt.host_map, key);
212 ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
213 "Unable to find host %06x\n", key);
219 struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha,
222 struct qla_hw_data *ha = vha->hw;
224 if (vha->vp_idx == vp_idx)
227 BUG_ON(ha->tgt.tgt_vp_map == NULL);
228 if (likely(test_bit(vp_idx, ha->vp_idx_map)))
229 return ha->tgt.tgt_vp_map[vp_idx].vha;
234 static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha)
238 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
240 vha->hw->tgt.num_pend_cmds++;
241 if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds)
242 vha->qla_stats.stat_max_pend_cmds =
243 vha->hw->tgt.num_pend_cmds;
244 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
246 static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha)
250 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
251 vha->hw->tgt.num_pend_cmds--;
252 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
256 static void qlt_queue_unknown_atio(scsi_qla_host_t *vha,
257 struct atio_from_isp *atio, uint8_t ha_locked)
259 struct qla_tgt_sess_op *u;
260 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
264 ql_dbg(ql_dbg_async, vha, 0x502c,
265 "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
270 u = kzalloc(sizeof(*u), GFP_ATOMIC);
275 memcpy(&u->atio, atio, sizeof(*atio));
276 INIT_LIST_HEAD(&u->cmd_list);
278 spin_lock_irqsave(&vha->cmd_list_lock, flags);
279 list_add_tail(&u->cmd_list, &vha->unknown_atio_list);
280 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
282 schedule_delayed_work(&vha->unknown_atio_work, 1);
288 qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0);
292 static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
295 struct qla_tgt_sess_op *u, *t;
296 scsi_qla_host_t *host;
297 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
301 list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) {
303 ql_dbg(ql_dbg_async, vha, 0x502e,
304 "Freeing unknown %s %p, because of Abort\n",
306 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
307 &u->atio, ha_locked, 0);
311 host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
313 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f,
314 "Requeuing unknown ATIO_TYPE7 %p\n", u);
315 qlt_24xx_atio_pkt(host, &u->atio, ha_locked);
316 } else if (tgt->tgt_stop) {
317 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a,
318 "Freeing unknown %s %p, because tgt is being stopped\n",
320 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
321 &u->atio, ha_locked, 0);
323 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
324 "Reschedule u %p, vha %p, host %p\n", u, vha, host);
327 schedule_delayed_work(&vha->unknown_atio_work,
334 spin_lock_irqsave(&vha->cmd_list_lock, flags);
335 list_del(&u->cmd_list);
336 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
341 void qlt_unknown_atio_work_fn(struct work_struct *work)
343 struct scsi_qla_host *vha = container_of(to_delayed_work(work),
344 struct scsi_qla_host, unknown_atio_work);
346 qlt_try_to_dequeue_unknown_atios(vha, 0);
349 static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
350 struct atio_from_isp *atio, uint8_t ha_locked)
352 ql_dbg(ql_dbg_tgt, vha, 0xe072,
353 "%s: qla_target(%d): type %x ox_id %04x\n",
354 __func__, vha->vp_idx, atio->u.raw.entry_type,
355 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
357 switch (atio->u.raw.entry_type) {
360 struct scsi_qla_host *host = qlt_find_host_by_d_id(vha,
361 atio->u.isp24.fcp_hdr.d_id);
362 if (unlikely(NULL == host)) {
363 ql_dbg(ql_dbg_tgt, vha, 0xe03e,
364 "qla_target(%d): Received ATIO_TYPE7 "
365 "with unknown d_id %x:%x:%x\n", vha->vp_idx,
366 atio->u.isp24.fcp_hdr.d_id[0],
367 atio->u.isp24.fcp_hdr.d_id[1],
368 atio->u.isp24.fcp_hdr.d_id[2]);
371 qlt_queue_unknown_atio(vha, atio, ha_locked);
374 if (unlikely(!list_empty(&vha->unknown_atio_list)))
375 qlt_try_to_dequeue_unknown_atios(vha, ha_locked);
377 qlt_24xx_atio_pkt(host, atio, ha_locked);
381 case IMMED_NOTIFY_TYPE:
383 struct scsi_qla_host *host = vha;
384 struct imm_ntfy_from_isp *entry =
385 (struct imm_ntfy_from_isp *)atio;
387 qlt_issue_marker(vha, ha_locked);
389 if ((entry->u.isp24.vp_index != 0xFF) &&
390 (entry->u.isp24.nport_handle != 0xFFFF)) {
391 host = qlt_find_host_by_vp_idx(vha,
392 entry->u.isp24.vp_index);
393 if (unlikely(!host)) {
394 ql_dbg(ql_dbg_tgt, vha, 0xe03f,
395 "qla_target(%d): Received "
396 "ATIO (IMMED_NOTIFY_TYPE) "
397 "with unknown vp_index %d\n",
398 vha->vp_idx, entry->u.isp24.vp_index);
402 qlt_24xx_atio_pkt(host, atio, ha_locked);
406 case VP_RPT_ID_IOCB_TYPE:
407 qla24xx_report_id_acquisition(vha,
408 (struct vp_rpt_id_entry_24xx *)atio);
413 struct abts_recv_from_24xx *entry =
414 (struct abts_recv_from_24xx *)atio;
415 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
419 if (unlikely(!host)) {
420 ql_dbg(ql_dbg_tgt, vha, 0xe00a,
421 "qla_target(%d): Response pkt (ABTS_RECV_24XX) "
422 "received, with unknown vp_index %d\n",
423 vha->vp_idx, entry->vp_index);
427 spin_lock_irqsave(&host->hw->hardware_lock, flags);
428 qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio);
430 spin_unlock_irqrestore(&host->hw->hardware_lock, flags);
434 /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */
437 ql_dbg(ql_dbg_tgt, vha, 0xe040,
438 "qla_target(%d): Received unknown ATIO atio "
439 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
446 void qlt_response_pkt_all_vps(struct scsi_qla_host *vha,
447 struct rsp_que *rsp, response_t *pkt)
449 switch (pkt->entry_type) {
451 ql_dbg(ql_dbg_tgt, vha, 0xe073,
452 "qla_target(%d):%s: CRC2 Response pkt\n",
453 vha->vp_idx, __func__);
457 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
458 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
460 if (unlikely(!host)) {
461 ql_dbg(ql_dbg_tgt, vha, 0xe041,
462 "qla_target(%d): Response pkt (CTIO_TYPE7) "
463 "received, with unknown vp_index %d\n",
464 vha->vp_idx, entry->vp_index);
467 qlt_response_pkt(host, rsp, pkt);
471 case IMMED_NOTIFY_TYPE:
473 struct scsi_qla_host *host = vha;
474 struct imm_ntfy_from_isp *entry =
475 (struct imm_ntfy_from_isp *)pkt;
477 host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index);
478 if (unlikely(!host)) {
479 ql_dbg(ql_dbg_tgt, vha, 0xe042,
480 "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) "
481 "received, with unknown vp_index %d\n",
482 vha->vp_idx, entry->u.isp24.vp_index);
485 qlt_response_pkt(host, rsp, pkt);
489 case NOTIFY_ACK_TYPE:
491 struct scsi_qla_host *host = vha;
492 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
494 if (0xFF != entry->u.isp24.vp_index) {
495 host = qlt_find_host_by_vp_idx(vha,
496 entry->u.isp24.vp_index);
497 if (unlikely(!host)) {
498 ql_dbg(ql_dbg_tgt, vha, 0xe043,
499 "qla_target(%d): Response "
500 "pkt (NOTIFY_ACK_TYPE) "
501 "received, with unknown "
502 "vp_index %d\n", vha->vp_idx,
503 entry->u.isp24.vp_index);
507 qlt_response_pkt(host, rsp, pkt);
513 struct abts_recv_from_24xx *entry =
514 (struct abts_recv_from_24xx *)pkt;
515 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
517 if (unlikely(!host)) {
518 ql_dbg(ql_dbg_tgt, vha, 0xe044,
519 "qla_target(%d): Response pkt "
520 "(ABTS_RECV_24XX) received, with unknown "
521 "vp_index %d\n", vha->vp_idx, entry->vp_index);
524 qlt_response_pkt(host, rsp, pkt);
530 struct abts_resp_to_24xx *entry =
531 (struct abts_resp_to_24xx *)pkt;
532 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
534 if (unlikely(!host)) {
535 ql_dbg(ql_dbg_tgt, vha, 0xe045,
536 "qla_target(%d): Response pkt "
537 "(ABTS_RECV_24XX) received, with unknown "
538 "vp_index %d\n", vha->vp_idx, entry->vp_index);
541 qlt_response_pkt(host, rsp, pkt);
546 qlt_response_pkt(vha, rsp, pkt);
553 * All qlt_plogi_ack_t operations are protected by hardware_lock
555 static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport,
556 struct imm_ntfy_from_isp *ntfy, int type)
558 struct qla_work_evt *e;
559 e = qla2x00_alloc_work(vha, QLA_EVT_NACK);
561 return QLA_FUNCTION_FAILED;
563 e->u.nack.fcport = fcport;
564 e->u.nack.type = type;
565 memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp));
566 return qla2x00_post_work(vha, e);
570 void qla2x00_async_nack_sp_done(void *s, int res)
572 struct srb *sp = (struct srb *)s;
573 struct scsi_qla_host *vha = sp->vha;
576 ql_dbg(ql_dbg_disc, vha, 0x20f2,
577 "Async done-%s res %x %8phC type %d\n",
578 sp->name, res, sp->fcport->port_name, sp->type);
580 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
581 sp->fcport->flags &= ~FCF_ASYNC_SENT;
582 sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
586 sp->fcport->login_gen++;
587 sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
588 sp->fcport->logout_on_delete = 1;
589 sp->fcport->plogi_nack_done_deadline = jiffies + HZ;
590 sp->fcport->send_els_logo = 0;
594 sp->fcport->fw_login_state = DSC_LS_PRLI_COMP;
595 sp->fcport->deleted = 0;
596 sp->fcport->send_els_logo = 0;
598 if (!sp->fcport->login_succ &&
599 !IS_SW_RESV_ADDR(sp->fcport->d_id)) {
600 sp->fcport->login_succ = 1;
603 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
604 qla24xx_sched_upd_fcport(sp->fcport);
605 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
607 sp->fcport->login_retry = 0;
608 sp->fcport->disc_state = DSC_LOGIN_COMPLETE;
609 sp->fcport->deleted = 0;
610 sp->fcport->logout_on_delete = 1;
615 sp->fcport->login_gen++;
616 sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
617 qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE);
620 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
625 int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport,
626 struct imm_ntfy_from_isp *ntfy, int type)
628 int rval = QLA_FUNCTION_FAILED;
632 fcport->flags |= FCF_ASYNC_SENT;
635 fcport->fw_login_state = DSC_LS_PLOGI_PEND;
639 fcport->fw_login_state = DSC_LS_PRLI_PEND;
644 fcport->fw_login_state = DSC_LS_LOGO_PEND;
649 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
656 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
657 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
659 sp->u.iocb_cmd.u.nack.ntfy = ntfy;
660 sp->done = qla2x00_async_nack_sp_done;
662 rval = qla2x00_start_sp(sp);
663 if (rval != QLA_SUCCESS)
666 ql_dbg(ql_dbg_disc, vha, 0x20f4,
667 "Async-%s %8phC hndl %x %s\n",
668 sp->name, fcport->port_name, sp->handle, c);
675 fcport->flags &= ~FCF_ASYNC_SENT;
679 void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
683 switch (e->u.nack.type) {
685 mutex_lock(&vha->vha_tgt.tgt_mutex);
686 t = qlt_create_sess(vha, e->u.nack.fcport, 0);
687 mutex_unlock(&vha->vha_tgt.tgt_mutex);
689 ql_log(ql_log_info, vha, 0xd034,
690 "%s create sess success %p", __func__, t);
691 /* create sess has an extra kref */
692 vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport);
696 qla24xx_async_notify_ack(vha, e->u.nack.fcport,
697 (struct imm_ntfy_from_isp*)e->u.nack.iocb, e->u.nack.type);
700 void qla24xx_delete_sess_fn(struct work_struct *work)
702 fc_port_t *fcport = container_of(work, struct fc_port, del_work);
703 struct qla_hw_data *ha = fcport->vha->hw;
705 if (fcport->se_sess) {
706 ha->tgt.tgt_ops->shutdown_sess(fcport);
707 ha->tgt.tgt_ops->put_sess(fcport);
709 qlt_unreg_sess(fcport);
714 * Called from qla2x00_reg_remote_port()
716 void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
718 struct qla_hw_data *ha = vha->hw;
719 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
720 struct fc_port *sess = fcport;
723 if (!vha->hw->tgt.tgt_ops)
726 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
728 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
732 if (fcport->disc_state == DSC_DELETE_PEND) {
733 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
737 if (!sess->se_sess) {
738 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
740 mutex_lock(&vha->vha_tgt.tgt_mutex);
741 sess = qlt_create_sess(vha, fcport, false);
742 mutex_unlock(&vha->vha_tgt.tgt_mutex);
744 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
746 if (fcport->fw_login_state == DSC_LS_PRLI_COMP) {
747 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
751 if (!kref_get_unless_zero(&sess->sess_kref)) {
752 ql_dbg(ql_dbg_disc, vha, 0x2107,
753 "%s: kref_get fail sess %8phC \n",
754 __func__, sess->port_name);
755 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
759 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c,
760 "qla_target(%u): %ssession for port %8phC "
761 "(loop ID %d) reappeared\n", vha->vp_idx,
762 sess->local ? "local " : "", sess->port_name, sess->loop_id);
764 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007,
765 "Reappeared sess %p\n", sess);
767 ha->tgt.tgt_ops->update_sess(sess, fcport->d_id,
769 (fcport->flags & FCF_CONF_COMP_SUPPORTED));
772 if (sess && sess->local) {
773 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d,
774 "qla_target(%u): local session for "
775 "port %8phC (loop ID %d) became global\n", vha->vp_idx,
776 fcport->port_name, sess->loop_id);
779 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
781 ha->tgt.tgt_ops->put_sess(sess);
785 * This is a zero-base ref-counting solution, since hardware_lock
786 * guarantees that ref_count is not modified concurrently.
787 * Upon successful return content of iocb is undefined
789 static struct qlt_plogi_ack_t *
790 qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
791 struct imm_ntfy_from_isp *iocb)
793 struct qlt_plogi_ack_t *pla;
795 list_for_each_entry(pla, &vha->plogi_ack_list, list) {
796 if (pla->id.b24 == id->b24) {
797 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x210d,
798 "%s %d %8phC Term INOT due to new INOT",
800 pla->iocb.u.isp24.port_name);
801 qlt_send_term_imm_notif(vha, &pla->iocb, 1);
802 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
807 pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC);
809 ql_dbg(ql_dbg_async, vha, 0x5088,
810 "qla_target(%d): Allocation of plogi_ack failed\n",
815 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
817 list_add_tail(&pla->list, &vha->plogi_ack_list);
822 void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
823 struct qlt_plogi_ack_t *pla)
825 struct imm_ntfy_from_isp *iocb = &pla->iocb;
828 fc_port_t *fcport = pla->fcport;
830 BUG_ON(!pla->ref_count);
836 ql_dbg(ql_dbg_disc, vha, 0x5089,
837 "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x"
838 " exch %#x ox_id %#x\n", iocb->u.isp24.port_name,
839 iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1],
840 iocb->u.isp24.port_id[0],
841 le16_to_cpu(iocb->u.isp24.nport_handle),
842 iocb->u.isp24.exchange_address, iocb->ox_id);
844 port_id.b.domain = iocb->u.isp24.port_id[2];
845 port_id.b.area = iocb->u.isp24.port_id[1];
846 port_id.b.al_pa = iocb->u.isp24.port_id[0];
847 port_id.b.rsvd_1 = 0;
849 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
851 fcport->loop_id = loop_id;
852 fcport->d_id = port_id;
853 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
854 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI);
856 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI);
858 list_for_each_entry(fcport, &vha->vp_fcports, list) {
859 if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla)
860 fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
861 if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla)
862 fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
865 list_del(&pla->list);
866 kmem_cache_free(qla_tgt_plogi_cachep, pla);
870 qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla,
871 struct fc_port *sess, enum qlt_plogi_link_t link)
873 struct imm_ntfy_from_isp *iocb = &pla->iocb;
874 /* Inc ref_count first because link might already be pointing at pla */
877 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097,
878 "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC"
879 " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n",
880 sess, link, sess->port_name,
881 iocb->u.isp24.port_name, iocb->u.isp24.port_id[2],
882 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
883 pla->ref_count, pla, link);
885 if (link == QLT_PLOGI_LINK_CONFLICT) {
886 switch (sess->disc_state) {
888 case DSC_DELETE_PEND:
896 if (sess->plogi_link[link])
897 qlt_plogi_ack_unref(vha, sess->plogi_link[link]);
899 if (link == QLT_PLOGI_LINK_SAME_WWN)
902 sess->plogi_link[link] = pla;
906 /* These fields must be initialized by the caller */
909 * number of cmds dropped while we were waiting for
910 * initiator to ack LOGO initialize to 1 if LOGO is
911 * triggered by a command, otherwise, to 0
915 /* These fields are used by callee */
916 struct list_head list;
920 qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
922 qlt_port_logo_t *tmp;
925 mutex_lock(&vha->vha_tgt.tgt_mutex);
927 list_for_each_entry(tmp, &vha->logo_list, list) {
928 if (tmp->id.b24 == logo->id.b24) {
929 tmp->cmd_count += logo->cmd_count;
930 mutex_unlock(&vha->vha_tgt.tgt_mutex);
935 list_add_tail(&logo->list, &vha->logo_list);
937 mutex_unlock(&vha->vha_tgt.tgt_mutex);
939 res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id);
941 mutex_lock(&vha->vha_tgt.tgt_mutex);
942 list_del(&logo->list);
943 mutex_unlock(&vha->vha_tgt.tgt_mutex);
945 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098,
946 "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n",
947 logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa,
948 logo->cmd_count, res);
951 void qlt_free_session_done(struct work_struct *work)
953 struct fc_port *sess = container_of(work, struct fc_port,
955 struct qla_tgt *tgt = sess->tgt;
956 struct scsi_qla_host *vha = sess->vha;
957 struct qla_hw_data *ha = vha->hw;
959 bool logout_started = false;
960 scsi_qla_host_t *base_vha;
961 struct qlt_plogi_ack_t *own =
962 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
964 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf084,
965 "%s: se_sess %p / sess %p from port %8phC loop_id %#04x"
966 " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n",
967 __func__, sess->se_sess, sess, sess->port_name, sess->loop_id,
968 sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa,
969 sess->logout_on_delete, sess->keep_nport_handle,
970 sess->send_els_logo);
972 if (!IS_SW_RESV_ADDR(sess->d_id)) {
973 qla2x00_mark_device_lost(vha, sess, 0, 0);
975 if (sess->send_els_logo) {
976 qlt_port_logo_t logo;
978 logo.id = sess->d_id;
981 qlt_send_first_logo(vha, &logo);
982 sess->send_els_logo = 0;
985 if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
990 (own->iocb.u.isp24.status_subcode == ELS_PLOGI))) {
991 rc = qla2x00_post_async_logout_work(vha, sess,
993 if (rc != QLA_SUCCESS)
994 ql_log(ql_log_warn, vha, 0xf085,
995 "Schedule logo failed sess %p rc %d\n",
998 logout_started = true;
999 } else if (own && (own->iocb.u.isp24.status_subcode ==
1000 ELS_PRLI) && ha->flags.rida_fmt2) {
1001 rc = qla2x00_post_async_prlo_work(vha, sess,
1003 if (rc != QLA_SUCCESS)
1004 ql_log(ql_log_warn, vha, 0xf085,
1005 "Schedule PRLO failed sess %p rc %d\n",
1008 logout_started = true;
1014 * Release the target session for FC Nexus from fabric module code.
1016 if (sess->se_sess != NULL)
1017 ha->tgt.tgt_ops->free_session(sess);
1019 if (logout_started) {
1020 bool traced = false;
1023 while (!READ_ONCE(sess->logout_completed)) {
1025 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf086,
1026 "%s: waiting for sess %p logout\n",
1036 ql_dbg(ql_dbg_disc, vha, 0xf087,
1037 "%s: sess %p logout completed\n", __func__, sess);
1040 if (sess->logo_ack_needed) {
1041 sess->logo_ack_needed = 0;
1042 qla24xx_async_notify_ack(vha, sess,
1043 (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO);
1046 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1047 if (sess->se_sess) {
1048 sess->se_sess = NULL;
1049 if (tgt && !IS_SW_RESV_ADDR(sess->d_id))
1053 sess->disc_state = DSC_DELETED;
1054 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1055 sess->deleted = QLA_SESS_DELETED;
1057 if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) {
1058 vha->fcport_count--;
1059 sess->login_succ = 0;
1062 qla2x00_clear_loop_id(sess);
1064 if (sess->conflict) {
1065 sess->conflict->login_pause = 0;
1066 sess->conflict = NULL;
1067 if (!test_bit(UNLOADING, &vha->dpc_flags))
1068 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1072 struct qlt_plogi_ack_t *con =
1073 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
1074 struct imm_ntfy_from_isp *iocb;
1075 own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
1079 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099,
1080 "se_sess %p / sess %p port %8phC is gone,"
1081 " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
1082 sess->se_sess, sess, sess->port_name,
1083 own ? "releasing own PLOGI" : "no own PLOGI pending",
1084 own ? own->ref_count : -1,
1085 iocb->u.isp24.port_name, con->ref_count);
1086 qlt_plogi_ack_unref(vha, con);
1087 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
1089 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a,
1090 "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n",
1091 sess->se_sess, sess, sess->port_name,
1092 own ? "releasing own PLOGI" :
1093 "no own PLOGI pending",
1094 own ? own->ref_count : -1);
1098 sess->fw_login_state = DSC_LS_PLOGI_PEND;
1099 qlt_plogi_ack_unref(vha, own);
1100 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
1104 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1106 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001,
1107 "Unregistration of sess %p %8phC finished fcp_cnt %d\n",
1108 sess, sess->port_name, vha->fcport_count);
1110 if (tgt && (tgt->sess_count == 0))
1111 wake_up_all(&tgt->waitQ);
1113 if (vha->fcport_count == 0)
1114 wake_up_all(&vha->fcport_waitQ);
1116 base_vha = pci_get_drvdata(ha->pdev);
1118 sess->free_pending = 0;
1120 if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags))
1123 if ((!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);
1138 /* ha->tgt.sess_lock supposed to be held on entry */
1139 void qlt_unreg_sess(struct fc_port *sess)
1141 struct scsi_qla_host *vha = sess->vha;
1142 unsigned long flags;
1144 ql_dbg(ql_dbg_disc, sess->vha, 0x210a,
1145 "%s sess %p for deletion %8phC\n",
1146 __func__, sess, sess->port_name);
1148 spin_lock_irqsave(&sess->vha->work_lock, flags);
1149 if (sess->free_pending) {
1150 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1153 sess->free_pending = 1;
1154 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1157 vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
1159 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1160 sess->disc_state = DSC_DELETE_PEND;
1161 sess->last_rscn_gen = sess->rscn_gen;
1162 sess->last_login_gen = sess->login_gen;
1164 if (sess->nvme_flag & NVME_FLAG_REGISTERED &&
1165 !(sess->nvme_flag & NVME_FLAG_DELETING)) {
1166 sess->nvme_flag |= NVME_FLAG_DELETING;
1167 schedule_work(&sess->nvme_del_work);
1169 INIT_WORK(&sess->free_work, qlt_free_session_done);
1170 schedule_work(&sess->free_work);
1173 EXPORT_SYMBOL(qlt_unreg_sess);
1175 static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
1177 struct qla_hw_data *ha = vha->hw;
1178 struct fc_port *sess = NULL;
1181 struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
1182 unsigned long flags;
1184 loop_id = le16_to_cpu(n->u.isp24.nport_handle);
1185 if (loop_id == 0xFFFF) {
1187 atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
1188 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1189 qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
1190 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1192 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1193 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
1194 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1197 ql_dbg(ql_dbg_tgt, vha, 0xe000,
1198 "Using sess for qla_tgt_reset: %p\n", sess);
1204 ql_dbg(ql_dbg_tgt, vha, 0xe047,
1205 "scsi(%ld): resetting (session %p from port %8phC mcmd %x, "
1206 "loop_id %d)\n", vha->host_no, sess, sess->port_name,
1209 return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK);
1212 static void qla24xx_chk_fcp_state(struct fc_port *sess)
1214 if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) {
1215 sess->logout_on_delete = 0;
1216 sess->logo_ack_needed = 0;
1217 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1221 void qlt_schedule_sess_for_deletion(struct fc_port *sess)
1223 struct qla_tgt *tgt = sess->tgt;
1224 unsigned long flags;
1227 switch (sess->disc_state) {
1228 case DSC_DELETE_PEND:
1231 if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
1232 !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) {
1233 if (tgt && tgt->tgt_stop && tgt->sess_count == 0)
1234 wake_up_all(&tgt->waitQ);
1236 if (sess->vha->fcport_count == 0)
1237 wake_up_all(&sess->vha->fcport_waitQ);
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 if (sess->deleted == QLA_SESS_DELETED)
1261 sess->logout_on_delete = 0;
1263 spin_lock_irqsave(&sess->vha->work_lock, flags);
1264 if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
1265 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1268 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1269 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1271 sess->disc_state = DSC_DELETE_PEND;
1273 qla24xx_chk_fcp_state(sess);
1275 ql_dbg(ql_dbg_tgt, sess->vha, 0xe001,
1276 "Scheduling sess %p for deletion %8phC\n",
1277 sess, sess->port_name);
1279 WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work));
1282 static void qlt_clear_tgt_db(struct qla_tgt *tgt)
1284 struct fc_port *sess;
1285 scsi_qla_host_t *vha = tgt->vha;
1287 list_for_each_entry(sess, &vha->vp_fcports, list) {
1289 qlt_schedule_sess_for_deletion(sess);
1292 /* At this point tgt could be already dead */
1295 static int qla24xx_get_loop_id(struct scsi_qla_host *vha, const uint8_t *s_id,
1298 struct qla_hw_data *ha = vha->hw;
1299 dma_addr_t gid_list_dma;
1300 struct gid_list_info *gid_list;
1305 gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1306 &gid_list_dma, GFP_KERNEL);
1308 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044,
1309 "qla_target(%d): DMA Alloc failed of %u\n",
1310 vha->vp_idx, qla2x00_gid_list_size(ha));
1314 /* Get list of logged in devices */
1315 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries);
1316 if (rc != QLA_SUCCESS) {
1317 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045,
1318 "qla_target(%d): get_id_list() failed: %x\n",
1321 goto out_free_id_list;
1324 id_iter = (char *)gid_list;
1326 for (i = 0; i < entries; i++) {
1327 struct gid_list_info *gid = (struct gid_list_info *)id_iter;
1328 if ((gid->al_pa == s_id[2]) &&
1329 (gid->area == s_id[1]) &&
1330 (gid->domain == s_id[0])) {
1331 *loop_id = le16_to_cpu(gid->loop_id);
1335 id_iter += ha->gid_list_info_size;
1339 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1340 gid_list, gid_list_dma);
1345 * Adds an extra ref to allow to drop hw lock after adding sess to the list.
1346 * Caller must put it.
1348 static struct fc_port *qlt_create_sess(
1349 struct scsi_qla_host *vha,
1353 struct qla_hw_data *ha = vha->hw;
1354 struct fc_port *sess = fcport;
1355 unsigned long flags;
1357 if (vha->vha_tgt.qla_tgt->tgt_stop)
1360 if (fcport->se_sess) {
1361 if (!kref_get_unless_zero(&sess->sess_kref)) {
1362 ql_dbg(ql_dbg_disc, vha, 0x20f6,
1363 "%s: kref_get_unless_zero failed for %8phC\n",
1364 __func__, sess->port_name);
1369 sess->tgt = vha->vha_tgt.qla_tgt;
1370 sess->local = local;
1373 * Under normal circumstances we want to logout from firmware when
1374 * session eventually ends and release corresponding nport handle.
1375 * In the exception cases (e.g. when new PLOGI is waiting) corresponding
1376 * code will adjust these flags as necessary.
1378 sess->logout_on_delete = 1;
1379 sess->keep_nport_handle = 0;
1380 sess->logout_completed = 0;
1382 if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
1383 &fcport->port_name[0], sess) < 0) {
1384 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015,
1385 "(%d) %8phC check_initiator_node_acl failed\n",
1386 vha->vp_idx, fcport->port_name);
1389 kref_init(&fcport->sess_kref);
1391 * Take an extra reference to ->sess_kref here to handle
1392 * fc_port access across ->tgt.sess_lock reaquire.
1394 if (!kref_get_unless_zero(&sess->sess_kref)) {
1395 ql_dbg(ql_dbg_disc, vha, 0x20f7,
1396 "%s: kref_get_unless_zero failed for %8phC\n",
1397 __func__, sess->port_name);
1401 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1402 if (!IS_SW_RESV_ADDR(sess->d_id))
1403 vha->vha_tgt.qla_tgt->sess_count++;
1405 qlt_do_generation_tick(vha, &sess->generation);
1406 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1409 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006,
1410 "Adding sess %p se_sess %p to tgt %p sess_count %d\n",
1411 sess, sess->se_sess, vha->vha_tgt.qla_tgt,
1412 vha->vha_tgt.qla_tgt->sess_count);
1414 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b,
1415 "qla_target(%d): %ssession for wwn %8phC (loop_id %d, "
1416 "s_id %x:%x:%x, confirmed completion %ssupported) added\n",
1417 vha->vp_idx, local ? "local " : "", fcport->port_name,
1418 fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area,
1419 sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not ");
1425 * max_gen - specifies maximum session generation
1426 * at which this deletion requestion is still valid
1429 qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
1431 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1432 struct fc_port *sess = fcport;
1433 unsigned long flags;
1435 if (!vha->hw->tgt.tgt_ops)
1441 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1442 if (tgt->tgt_stop) {
1443 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1446 if (!sess->se_sess) {
1447 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1451 if (max_gen - sess->generation < 0) {
1452 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1453 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092,
1454 "Ignoring stale deletion request for se_sess %p / sess %p"
1455 " for port %8phC, req_gen %d, sess_gen %d\n",
1456 sess->se_sess, sess, sess->port_name, max_gen,
1461 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
1464 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1465 qlt_schedule_sess_for_deletion(sess);
1468 static inline int test_tgt_sess_count(struct qla_tgt *tgt)
1470 struct qla_hw_data *ha = tgt->ha;
1471 unsigned long flags;
1474 * We need to protect against race, when tgt is freed before or
1477 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1478 ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
1479 "tgt %p, sess_count=%d\n",
1480 tgt, tgt->sess_count);
1481 res = (tgt->sess_count == 0);
1482 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1487 /* Called by tcm_qla2xxx configfs code */
1488 int qlt_stop_phase1(struct qla_tgt *tgt)
1490 struct scsi_qla_host *vha = tgt->vha;
1491 struct qla_hw_data *ha = tgt->ha;
1492 unsigned long flags;
1494 mutex_lock(&qla_tgt_mutex);
1495 if (!vha->fc_vport) {
1496 struct Scsi_Host *sh = vha->host;
1497 struct fc_host_attrs *fc_host = shost_to_fc_host(sh);
1500 spin_lock_irqsave(sh->host_lock, flags);
1501 npiv_vports = (fc_host->npiv_vports_inuse);
1502 spin_unlock_irqrestore(sh->host_lock, flags);
1505 mutex_unlock(&qla_tgt_mutex);
1506 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021,
1507 "NPIV is in use. Can not stop target\n");
1511 if (tgt->tgt_stop || tgt->tgt_stopped) {
1512 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e,
1513 "Already in tgt->tgt_stop or tgt_stopped state\n");
1514 mutex_unlock(&qla_tgt_mutex);
1518 ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n",
1521 * Mutex needed to sync with qla_tgt_fc_port_[added,deleted].
1522 * Lock is needed, because we still can get an incoming packet.
1524 mutex_lock(&vha->vha_tgt.tgt_mutex);
1526 qlt_clear_tgt_db(tgt);
1527 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1528 mutex_unlock(&qla_tgt_mutex);
1530 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
1531 "Waiting for sess works (tgt %p)", tgt);
1532 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1533 while (!list_empty(&tgt->sess_works_list)) {
1534 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1535 flush_scheduled_work();
1536 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1538 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1540 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
1541 "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count);
1543 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1546 if (!ha->flags.host_shutting_down &&
1547 (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)))
1548 qlt_disable_vha(vha);
1550 /* Wait for sessions to clear out (just in case) */
1551 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1554 EXPORT_SYMBOL(qlt_stop_phase1);
1556 /* Called by tcm_qla2xxx configfs code */
1557 void qlt_stop_phase2(struct qla_tgt *tgt)
1559 scsi_qla_host_t *vha = tgt->vha;
1561 if (tgt->tgt_stopped) {
1562 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f,
1563 "Already in tgt->tgt_stopped state\n");
1567 if (!tgt->tgt_stop) {
1568 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b,
1569 "%s: phase1 stop is not completed\n", __func__);
1574 mutex_lock(&tgt->ha->optrom_mutex);
1575 mutex_lock(&vha->vha_tgt.tgt_mutex);
1577 tgt->tgt_stopped = 1;
1578 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1579 mutex_unlock(&tgt->ha->optrom_mutex);
1581 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n",
1584 EXPORT_SYMBOL(qlt_stop_phase2);
1586 /* Called from qlt_remove_target() -> qla2x00_remove_one() */
1587 static void qlt_release(struct qla_tgt *tgt)
1589 scsi_qla_host_t *vha = tgt->vha;
1593 struct qla_qpair_hint *h;
1594 struct qla_hw_data *ha = vha->hw;
1596 if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stop &&
1598 qlt_stop_phase1(tgt);
1600 if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped)
1601 qlt_stop_phase2(tgt);
1603 for (i = 0; i < vha->hw->max_qpairs + 1; i++) {
1604 unsigned long flags;
1606 h = &tgt->qphints[i];
1608 spin_lock_irqsave(h->qpair->qp_lock_ptr, flags);
1609 list_del(&h->hint_elem);
1610 spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags);
1614 kfree(tgt->qphints);
1615 mutex_lock(&qla_tgt_mutex);
1616 list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
1617 mutex_unlock(&qla_tgt_mutex);
1619 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
1620 btree_remove64(&tgt->lun_qpair_map, key);
1622 btree_destroy64(&tgt->lun_qpair_map);
1625 if (ha->tgt.tgt_ops &&
1626 ha->tgt.tgt_ops->remove_target &&
1627 vha->vha_tgt.target_lport_ptr)
1628 ha->tgt.tgt_ops->remove_target(vha);
1630 vha->vha_tgt.qla_tgt = NULL;
1632 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
1633 "Release of tgt %p finished\n", tgt);
1638 /* ha->hardware_lock supposed to be held on entry */
1639 static int qlt_sched_sess_work(struct qla_tgt *tgt, int type,
1640 const void *param, unsigned int param_size)
1642 struct qla_tgt_sess_work_param *prm;
1643 unsigned long flags;
1645 prm = kzalloc(sizeof(*prm), GFP_ATOMIC);
1647 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050,
1648 "qla_target(%d): Unable to create session "
1649 "work, command will be refused", 0);
1653 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e,
1654 "Scheduling work (type %d, prm %p)"
1655 " to find session for param %p (size %d, tgt %p)\n",
1656 type, prm, param, param_size, tgt);
1659 memcpy(&prm->tm_iocb, param, param_size);
1661 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1662 list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list);
1663 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1665 schedule_work(&tgt->sess_work);
1671 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1673 static void qlt_send_notify_ack(struct qla_qpair *qpair,
1674 struct imm_ntfy_from_isp *ntfy,
1675 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
1676 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan)
1678 struct scsi_qla_host *vha = qpair->vha;
1679 struct qla_hw_data *ha = vha->hw;
1681 struct nack_to_isp *nack;
1683 if (!ha->flags.fw_started)
1686 ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha);
1688 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
1690 ql_dbg(ql_dbg_tgt, vha, 0xe049,
1691 "qla_target(%d): %s failed: unable to allocate "
1692 "request packet\n", vha->vp_idx, __func__);
1696 if (vha->vha_tgt.qla_tgt != NULL)
1697 vha->vha_tgt.qla_tgt->notify_ack_expected++;
1699 pkt->entry_type = NOTIFY_ACK_TYPE;
1700 pkt->entry_count = 1;
1702 nack = (struct nack_to_isp *)pkt;
1703 nack->ox_id = ntfy->ox_id;
1705 nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE;
1706 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
1707 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
1708 nack->u.isp24.flags = ntfy->u.isp24.flags &
1709 cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
1711 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
1712 nack->u.isp24.status = ntfy->u.isp24.status;
1713 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
1714 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
1715 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
1716 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
1717 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
1718 nack->u.isp24.srr_flags = cpu_to_le16(srr_flags);
1719 nack->u.isp24.srr_reject_code = srr_reject_code;
1720 nack->u.isp24.srr_reject_code_expl = srr_explan;
1721 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
1723 ql_dbg(ql_dbg_tgt, vha, 0xe005,
1724 "qla_target(%d): Sending 24xx Notify Ack %d\n",
1725 vha->vp_idx, nack->u.isp24.status);
1727 /* Memory Barrier */
1729 qla2x00_start_iocbs(vha, qpair->req);
1733 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1735 static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair,
1736 struct abts_recv_from_24xx *abts, uint32_t status,
1739 struct scsi_qla_host *vha = qpair->vha;
1740 struct qla_hw_data *ha = vha->hw;
1741 struct abts_resp_to_24xx *resp;
1745 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1746 "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
1749 resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair,
1752 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1753 "qla_target(%d): %s failed: unable to allocate "
1754 "request packet", vha->vp_idx, __func__);
1758 resp->entry_type = ABTS_RESP_24XX;
1759 resp->entry_count = 1;
1760 resp->nport_handle = abts->nport_handle;
1761 resp->vp_index = vha->vp_idx;
1762 resp->sof_type = abts->sof_type;
1763 resp->exchange_address = abts->exchange_address;
1764 resp->fcp_hdr_le = abts->fcp_hdr_le;
1765 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1766 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1767 F_CTL_SEQ_INITIATIVE);
1768 p = (uint8_t *)&f_ctl;
1769 resp->fcp_hdr_le.f_ctl[0] = *p++;
1770 resp->fcp_hdr_le.f_ctl[1] = *p++;
1771 resp->fcp_hdr_le.f_ctl[2] = *p;
1773 resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.d_id[0];
1774 resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.d_id[1];
1775 resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.d_id[2];
1776 resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.s_id[0];
1777 resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.s_id[1];
1778 resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.s_id[2];
1780 resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.s_id[0];
1781 resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.s_id[1];
1782 resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.s_id[2];
1783 resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.d_id[0];
1784 resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.d_id[1];
1785 resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.d_id[2];
1787 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1788 if (status == FCP_TMF_CMPL) {
1789 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1790 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1791 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1792 resp->payload.ba_acct.high_seq_cnt = 0xFFFF;
1793 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1794 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1796 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1797 resp->payload.ba_rjt.reason_code =
1798 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1799 /* Other bytes are zero */
1802 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1804 /* Memory Barrier */
1806 if (qpair->reqq_start_iocbs)
1807 qpair->reqq_start_iocbs(qpair);
1809 qla2x00_start_iocbs(vha, qpair->req);
1813 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1815 static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha,
1816 struct abts_resp_from_24xx_fw *entry)
1818 struct ctio7_to_24xx *ctio;
1820 ql_dbg(ql_dbg_tgt, vha, 0xe007,
1821 "Sending retry TERM EXCH CTIO7 (ha=%p)\n", vha->hw);
1823 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(
1824 vha->hw->base_qpair, NULL);
1826 ql_dbg(ql_dbg_tgt, vha, 0xe04b,
1827 "qla_target(%d): %s failed: unable to allocate "
1828 "request packet\n", vha->vp_idx, __func__);
1833 * We've got on entrance firmware's response on by us generated
1834 * ABTS response. So, in it ID fields are reversed.
1837 ctio->entry_type = CTIO_TYPE7;
1838 ctio->entry_count = 1;
1839 ctio->nport_handle = entry->nport_handle;
1840 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
1841 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
1842 ctio->vp_index = vha->vp_idx;
1843 ctio->initiator_id[0] = entry->fcp_hdr_le.d_id[0];
1844 ctio->initiator_id[1] = entry->fcp_hdr_le.d_id[1];
1845 ctio->initiator_id[2] = entry->fcp_hdr_le.d_id[2];
1846 ctio->exchange_addr = entry->exchange_addr_to_abort;
1847 ctio->u.status1.flags = cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 |
1848 CTIO7_FLAGS_TERMINATE);
1849 ctio->u.status1.ox_id = cpu_to_le16(entry->fcp_hdr_le.ox_id);
1851 /* Memory Barrier */
1853 qla2x00_start_iocbs(vha, vha->req);
1855 qlt_24xx_send_abts_resp(vha->hw->base_qpair,
1856 (struct abts_recv_from_24xx *)entry,
1857 FCP_TMF_CMPL, true);
1860 static int abort_cmd_for_tag(struct scsi_qla_host *vha, uint32_t tag)
1862 struct qla_tgt_sess_op *op;
1863 struct qla_tgt_cmd *cmd;
1864 unsigned long flags;
1866 spin_lock_irqsave(&vha->cmd_list_lock, flags);
1867 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
1868 if (tag == op->atio.u.isp24.exchange_addr) {
1870 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
1875 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
1876 if (tag == op->atio.u.isp24.exchange_addr) {
1878 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
1883 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
1884 if (tag == cmd->atio.u.isp24.exchange_addr) {
1886 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
1890 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
1895 /* drop cmds for the given lun
1896 * XXX only looks for cmds on the port through which lun reset was recieved
1897 * XXX does not go through the list of other port (which may have cmds
1900 static void abort_cmds_for_lun(struct scsi_qla_host *vha,
1901 u64 lun, uint8_t *s_id)
1903 struct qla_tgt_sess_op *op;
1904 struct qla_tgt_cmd *cmd;
1906 unsigned long flags;
1908 key = sid_to_key(s_id);
1909 spin_lock_irqsave(&vha->cmd_list_lock, flags);
1910 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
1914 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
1915 op_lun = scsilun_to_int(
1916 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
1917 if (op_key == key && op_lun == lun)
1921 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
1925 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
1926 op_lun = scsilun_to_int(
1927 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
1928 if (op_key == key && op_lun == lun)
1932 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
1936 cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
1937 cmd_lun = scsilun_to_int(
1938 (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun);
1939 if (cmd_key == key && cmd_lun == lun)
1942 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
1945 static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha,
1946 uint64_t unpacked_lun)
1948 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1949 struct qla_qpair_hint *h = NULL;
1951 if (vha->flags.qpairs_available) {
1952 h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun);
1954 h = &tgt->qphints[0];
1956 h = &tgt->qphints[0];
1962 static void qlt_do_tmr_work(struct work_struct *work)
1964 struct qla_tgt_mgmt_cmd *mcmd =
1965 container_of(work, struct qla_tgt_mgmt_cmd, work);
1966 struct qla_hw_data *ha = mcmd->vha->hw;
1969 unsigned long flags;
1971 switch (mcmd->tmr_func) {
1973 tag = mcmd->orig_iocb.abts.exchange_addr_to_abort;
1980 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun,
1981 mcmd->tmr_func, tag);
1984 spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags);
1985 switch (mcmd->tmr_func) {
1987 qlt_24xx_send_abts_resp(mcmd->qpair,
1988 &mcmd->orig_iocb.abts,
1989 FCP_TMF_REJECTED, false);
1991 case QLA_TGT_LUN_RESET:
1992 case QLA_TGT_CLEAR_TS:
1993 case QLA_TGT_ABORT_TS:
1994 case QLA_TGT_CLEAR_ACA:
1995 case QLA_TGT_TARGET_RESET:
1996 qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio,
2000 case QLA_TGT_ABORT_ALL:
2001 case QLA_TGT_NEXUS_LOSS_SESS:
2002 case QLA_TGT_NEXUS_LOSS:
2003 qlt_send_notify_ack(mcmd->qpair,
2004 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2007 spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags);
2009 ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052,
2010 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
2011 mcmd->vha->vp_idx, rc);
2012 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2016 /* ha->hardware_lock supposed to be held on entry */
2017 static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2018 struct abts_recv_from_24xx *abts, struct fc_port *sess)
2020 struct qla_hw_data *ha = vha->hw;
2021 struct qla_tgt_mgmt_cmd *mcmd;
2022 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
2024 if (abort_cmd_for_tag(vha, abts->exchange_addr_to_abort)) {
2025 /* send TASK_ABORT response immediately */
2026 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_CMPL, false);
2030 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
2031 "qla_target(%d): task abort (tag=%d)\n",
2032 vha->vp_idx, abts->exchange_addr_to_abort);
2034 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
2036 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051,
2037 "qla_target(%d): %s: Allocation of ABORT cmd failed",
2038 vha->vp_idx, __func__);
2041 memset(mcmd, 0, sizeof(*mcmd));
2044 memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
2045 mcmd->reset_count = ha->base_qpair->chip_reset;
2046 mcmd->tmr_func = QLA_TGT_ABTS;
2047 mcmd->qpair = h->qpair;
2051 * LUN is looked up by target-core internally based on the passed
2052 * abts->exchange_addr_to_abort tag.
2054 mcmd->se_cmd.cpuid = h->cpuid;
2056 if (ha->tgt.tgt_ops->find_cmd_by_tag) {
2057 struct qla_tgt_cmd *abort_cmd;
2059 abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
2060 abts->exchange_addr_to_abort);
2061 if (abort_cmd && abort_cmd->qpair) {
2062 mcmd->qpair = abort_cmd->qpair;
2063 mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid;
2067 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
2068 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work);
2074 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2076 static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2077 struct abts_recv_from_24xx *abts)
2079 struct qla_hw_data *ha = vha->hw;
2080 struct fc_port *sess;
2081 uint32_t tag = abts->exchange_addr_to_abort;
2084 unsigned long flags;
2086 if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) {
2087 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053,
2088 "qla_target(%d): ABTS: Abort Sequence not "
2089 "supported\n", vha->vp_idx);
2090 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2095 if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
2096 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010,
2097 "qla_target(%d): ABTS: Unknown Exchange "
2098 "Address received\n", vha->vp_idx);
2099 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2104 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011,
2105 "qla_target(%d): task abort (s_id=%x:%x:%x, "
2106 "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id[2],
2107 abts->fcp_hdr_le.s_id[1], abts->fcp_hdr_le.s_id[0], tag,
2108 le32_to_cpu(abts->fcp_hdr_le.parameter));
2110 s_id[0] = abts->fcp_hdr_le.s_id[2];
2111 s_id[1] = abts->fcp_hdr_le.s_id[1];
2112 s_id[2] = abts->fcp_hdr_le.s_id[0];
2114 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
2115 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
2117 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
2118 "qla_target(%d): task abort for non-existent session\n",
2120 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2122 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2126 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2129 if (sess->deleted) {
2130 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2135 rc = __qlt_24xx_handle_abts(vha, abts, sess);
2137 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054,
2138 "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
2140 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2147 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2149 static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair,
2150 struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code)
2152 struct scsi_qla_host *ha = mcmd->vha;
2153 struct atio_from_isp *atio = &mcmd->orig_iocb.atio;
2154 struct ctio7_to_24xx *ctio;
2157 ql_dbg(ql_dbg_tgt, ha, 0xe008,
2158 "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n",
2159 ha, atio, resp_code);
2162 ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL);
2164 ql_dbg(ql_dbg_tgt, ha, 0xe04c,
2165 "qla_target(%d): %s failed: unable to allocate "
2166 "request packet\n", ha->vp_idx, __func__);
2170 ctio->entry_type = CTIO_TYPE7;
2171 ctio->entry_count = 1;
2172 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
2173 ctio->nport_handle = mcmd->sess->loop_id;
2174 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2175 ctio->vp_index = ha->vp_idx;
2176 ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
2177 ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
2178 ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
2179 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2180 temp = (atio->u.isp24.attr << 9)|
2181 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2182 ctio->u.status1.flags = cpu_to_le16(temp);
2183 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2184 ctio->u.status1.ox_id = cpu_to_le16(temp);
2185 ctio->u.status1.scsi_status =
2186 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
2187 ctio->u.status1.response_len = cpu_to_le16(8);
2188 ctio->u.status1.sense_data[0] = resp_code;
2190 /* Memory Barrier */
2192 if (qpair->reqq_start_iocbs)
2193 qpair->reqq_start_iocbs(qpair);
2195 qla2x00_start_iocbs(ha, qpair->req);
2198 void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
2200 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2202 EXPORT_SYMBOL(qlt_free_mcmd);
2205 * ha->hardware_lock supposed to be held on entry. Might drop it, then
2208 void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
2209 uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq)
2211 struct atio_from_isp *atio = &cmd->atio;
2212 struct ctio7_to_24xx *ctio;
2214 struct scsi_qla_host *vha = cmd->vha;
2216 ql_dbg(ql_dbg_tgt_dif, vha, 0x3066,
2217 "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, "
2218 "sense_key=%02x, asc=%02x, ascq=%02x",
2219 vha, atio, scsi_status, sense_key, asc, ascq);
2221 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
2223 ql_dbg(ql_dbg_async, vha, 0x3067,
2224 "qla2x00t(%ld): %s failed: unable to allocate request packet",
2225 vha->host_no, __func__);
2229 ctio->entry_type = CTIO_TYPE7;
2230 ctio->entry_count = 1;
2231 ctio->handle = QLA_TGT_SKIP_HANDLE;
2232 ctio->nport_handle = cmd->sess->loop_id;
2233 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2234 ctio->vp_index = vha->vp_idx;
2235 ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
2236 ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
2237 ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
2238 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2239 temp = (atio->u.isp24.attr << 9) |
2240 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2241 ctio->u.status1.flags = cpu_to_le16(temp);
2242 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2243 ctio->u.status1.ox_id = cpu_to_le16(temp);
2244 ctio->u.status1.scsi_status =
2245 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status);
2246 ctio->u.status1.response_len = cpu_to_le16(18);
2247 ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
2249 if (ctio->u.status1.residual != 0)
2250 ctio->u.status1.scsi_status |=
2251 cpu_to_le16(SS_RESIDUAL_UNDER);
2253 /* Fixed format sense data. */
2254 ctio->u.status1.sense_data[0] = 0x70;
2255 ctio->u.status1.sense_data[2] = sense_key;
2256 /* Additional sense length */
2257 ctio->u.status1.sense_data[7] = 0xa;
2259 ctio->u.status1.sense_data[12] = asc;
2260 ctio->u.status1.sense_data[13] = ascq;
2262 /* Memory Barrier */
2265 if (qpair->reqq_start_iocbs)
2266 qpair->reqq_start_iocbs(qpair);
2268 qla2x00_start_iocbs(vha, qpair->req);
2274 /* callback from target fabric module code */
2275 void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
2277 struct scsi_qla_host *vha = mcmd->sess->vha;
2278 struct qla_hw_data *ha = vha->hw;
2279 unsigned long flags;
2280 struct qla_qpair *qpair = mcmd->qpair;
2282 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013,
2283 "TM response mcmd (%p) status %#x state %#x",
2284 mcmd, mcmd->fc_tm_rsp, mcmd->flags);
2286 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
2288 if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) {
2290 * Either the port is not online or this request was from
2291 * previous life, just abort the processing.
2293 ql_dbg(ql_dbg_async, vha, 0xe100,
2294 "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n",
2295 vha->flags.online, qla2x00_reset_active(vha),
2296 mcmd->reset_count, qpair->chip_reset);
2297 ha->tgt.tgt_ops->free_mcmd(mcmd);
2298 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2302 if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) {
2303 if (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode ==
2305 mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode ==
2307 mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode ==
2309 ql_dbg(ql_dbg_disc, vha, 0x2106,
2310 "TM response logo %8phC status %#x state %#x",
2311 mcmd->sess->port_name, mcmd->fc_tm_rsp,
2313 qlt_schedule_sess_for_deletion(mcmd->sess);
2315 qlt_send_notify_ack(vha->hw->base_qpair,
2316 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2319 if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX)
2320 qlt_24xx_send_abts_resp(qpair, &mcmd->orig_iocb.abts,
2321 mcmd->fc_tm_rsp, false);
2323 qlt_24xx_send_task_mgmt_ctio(qpair, mcmd,
2327 * Make the callback for ->free_mcmd() to queue_work() and invoke
2328 * target_put_sess_cmd() to drop cmd_kref to 1. The final
2329 * target_put_sess_cmd() call will be made from TFO->check_stop_free()
2330 * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd
2331 * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() ->
2332 * qlt_xmit_tm_rsp() returns here..
2334 ha->tgt.tgt_ops->free_mcmd(mcmd);
2335 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2337 EXPORT_SYMBOL(qlt_xmit_tm_rsp);
2340 static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm)
2342 struct qla_tgt_cmd *cmd = prm->cmd;
2344 BUG_ON(cmd->sg_cnt == 0);
2346 prm->sg = (struct scatterlist *)cmd->sg;
2347 prm->seg_cnt = pci_map_sg(cmd->qpair->pdev, cmd->sg,
2348 cmd->sg_cnt, cmd->dma_data_direction);
2349 if (unlikely(prm->seg_cnt == 0))
2352 prm->cmd->sg_mapped = 1;
2354 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) {
2356 * If greater than four sg entries then we need to allocate
2357 * the continuation entries
2359 if (prm->seg_cnt > QLA_TGT_DATASEGS_PER_CMD_24XX)
2360 prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt -
2361 QLA_TGT_DATASEGS_PER_CMD_24XX,
2362 QLA_TGT_DATASEGS_PER_CONT_24XX);
2365 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2366 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2367 prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz);
2368 prm->tot_dsds = prm->seg_cnt;
2370 prm->tot_dsds = prm->seg_cnt;
2372 if (cmd->prot_sg_cnt) {
2373 prm->prot_sg = cmd->prot_sg;
2374 prm->prot_seg_cnt = pci_map_sg(cmd->qpair->pdev,
2375 cmd->prot_sg, cmd->prot_sg_cnt,
2376 cmd->dma_data_direction);
2377 if (unlikely(prm->prot_seg_cnt == 0))
2380 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2381 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2382 /* Dif Bundling not support here */
2383 prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen,
2385 prm->tot_dsds += prm->prot_seg_cnt;
2387 prm->tot_dsds += prm->prot_seg_cnt;
2394 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d,
2395 "qla_target(%d): PCI mapping failed: sg_cnt=%d",
2396 0, prm->cmd->sg_cnt);
2400 static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd)
2402 struct qla_hw_data *ha;
2403 struct qla_qpair *qpair;
2404 if (!cmd->sg_mapped)
2409 pci_unmap_sg(qpair->pdev, cmd->sg, cmd->sg_cnt,
2410 cmd->dma_data_direction);
2413 if (cmd->prot_sg_cnt)
2414 pci_unmap_sg(qpair->pdev, cmd->prot_sg, cmd->prot_sg_cnt,
2415 cmd->dma_data_direction);
2420 if (cmd->ctx_dsd_alloced)
2421 qla2x00_clean_dsd_pool(ha, cmd->ctx);
2423 dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma);
2426 static int qlt_check_reserve_free_req(struct qla_qpair *qpair,
2430 struct req_que *req = qpair->req;
2432 if (req->cnt < (req_cnt + 2)) {
2433 cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr :
2434 RD_REG_DWORD_RELAXED(req->req_q_out));
2436 if (req->ring_index < cnt)
2437 req->cnt = cnt - req->ring_index;
2439 req->cnt = req->length - (req->ring_index - cnt);
2441 if (unlikely(req->cnt < (req_cnt + 2)))
2445 req->cnt -= req_cnt;
2451 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2453 static inline void *qlt_get_req_pkt(struct req_que *req)
2455 /* Adjust ring index. */
2457 if (req->ring_index == req->length) {
2458 req->ring_index = 0;
2459 req->ring_ptr = req->ring;
2463 return (cont_entry_t *)req->ring_ptr;
2466 /* ha->hardware_lock supposed to be held on entry */
2467 static inline uint32_t qlt_make_handle(struct qla_qpair *qpair)
2472 struct req_que *req = qpair->req;
2474 h = req->current_outstanding_cmd;
2476 for (index = 1; index < req->num_outstanding_cmds; index++) {
2478 if (h == req->num_outstanding_cmds)
2481 if (h == QLA_TGT_SKIP_HANDLE)
2484 if (!req->outstanding_cmds[h]) {
2491 req->current_outstanding_cmd = h;
2493 ql_dbg(ql_dbg_io, qpair->vha, 0x305b,
2494 "qla_target(%d): Ran out of empty cmd slots\n",
2495 qpair->vha->vp_idx);
2496 h = QLA_TGT_NULL_HANDLE;
2502 /* ha->hardware_lock supposed to be held on entry */
2503 static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair,
2504 struct qla_tgt_prm *prm)
2507 struct ctio7_to_24xx *pkt;
2508 struct atio_from_isp *atio = &prm->cmd->atio;
2511 pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr;
2513 memset(pkt, 0, sizeof(*pkt));
2515 pkt->entry_type = CTIO_TYPE7;
2516 pkt->entry_count = (uint8_t)prm->req_cnt;
2517 pkt->vp_index = prm->cmd->vp_idx;
2519 h = qlt_make_handle(qpair);
2520 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
2522 * CTIO type 7 from the firmware doesn't provide a way to
2523 * know the initiator's LOOP ID, hence we can't find
2524 * the session and, so, the command.
2528 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
2530 pkt->handle = MAKE_HANDLE(qpair->req->id, h);
2531 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
2532 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
2533 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2534 pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
2535 pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
2536 pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
2537 pkt->exchange_addr = atio->u.isp24.exchange_addr;
2538 temp = atio->u.isp24.attr << 9;
2539 pkt->u.status0.flags |= cpu_to_le16(temp);
2540 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2541 pkt->u.status0.ox_id = cpu_to_le16(temp);
2542 pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset);
2548 * ha->hardware_lock supposed to be held on entry. We have already made sure
2549 * that there is sufficient amount of request entries to not drop it.
2551 static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm)
2554 uint32_t *dword_ptr;
2556 /* Build continuation packets */
2557 while (prm->seg_cnt > 0) {
2558 cont_a64_entry_t *cont_pkt64 =
2559 (cont_a64_entry_t *)qlt_get_req_pkt(
2560 prm->cmd->qpair->req);
2563 * Make sure that from cont_pkt64 none of
2564 * 64-bit specific fields used for 32-bit
2565 * addressing. Cast to (cont_entry_t *) for
2569 memset(cont_pkt64, 0, sizeof(*cont_pkt64));
2571 cont_pkt64->entry_count = 1;
2572 cont_pkt64->sys_define = 0;
2574 cont_pkt64->entry_type = CONTINUE_A64_TYPE;
2575 dword_ptr = (uint32_t *)&cont_pkt64->dseg_0_address;
2577 /* Load continuation entry data segments */
2579 cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt;
2580 cnt++, prm->seg_cnt--) {
2582 cpu_to_le32(pci_dma_lo32
2583 (sg_dma_address(prm->sg)));
2584 *dword_ptr++ = cpu_to_le32(pci_dma_hi32
2585 (sg_dma_address(prm->sg)));
2586 *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg));
2588 prm->sg = sg_next(prm->sg);
2594 * ha->hardware_lock supposed to be held on entry. We have already made sure
2595 * that there is sufficient amount of request entries to not drop it.
2597 static void qlt_load_data_segments(struct qla_tgt_prm *prm)
2600 uint32_t *dword_ptr;
2601 struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt;
2603 pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen);
2605 /* Setup packet address segment pointer */
2606 dword_ptr = pkt24->u.status0.dseg_0_address;
2608 /* Set total data segment count */
2610 pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
2612 if (prm->seg_cnt == 0) {
2613 /* No data transfer */
2619 /* If scatter gather */
2621 /* Load command entry data segments */
2623 (cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt;
2624 cnt++, prm->seg_cnt--) {
2626 cpu_to_le32(pci_dma_lo32(sg_dma_address(prm->sg)));
2628 *dword_ptr++ = cpu_to_le32(pci_dma_hi32(
2629 sg_dma_address(prm->sg)));
2631 *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg));
2633 prm->sg = sg_next(prm->sg);
2636 qlt_load_cont_data_segments(prm);
2639 static inline int qlt_has_data(struct qla_tgt_cmd *cmd)
2641 return cmd->bufflen > 0;
2644 static void qlt_print_dif_err(struct qla_tgt_prm *prm)
2646 struct qla_tgt_cmd *cmd;
2647 struct scsi_qla_host *vha;
2649 /* asc 0x10=dif error */
2650 if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) {
2654 switch (prm->sense_buffer[13]) {
2656 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b,
2657 "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2658 "se_cmd=%p tag[%x]",
2659 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2660 cmd->atio.u.isp24.exchange_addr);
2663 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c,
2664 "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2665 "se_cmd=%p tag[%x]",
2666 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2667 cmd->atio.u.isp24.exchange_addr);
2670 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f,
2671 "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2672 "se_cmd=%p tag[%x]",
2673 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2674 cmd->atio.u.isp24.exchange_addr);
2677 ql_dbg(ql_dbg_tgt_dif, vha, 0xe010,
2678 "BE detected Dif ERR: lba[%llx|%lld] len[%x] "
2679 "se_cmd=%p tag[%x]",
2680 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2681 cmd->atio.u.isp24.exchange_addr);
2684 ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16);
2689 * Called without ha->hardware_lock held
2691 static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
2692 struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status,
2693 uint32_t *full_req_cnt)
2695 struct se_cmd *se_cmd = &cmd->se_cmd;
2696 struct qla_qpair *qpair = cmd->qpair;
2699 prm->tgt = cmd->tgt;
2701 prm->rq_result = scsi_status;
2702 prm->sense_buffer = &cmd->sense_buffer[0];
2703 prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER;
2708 prm->add_status_pkt = 0;
2709 prm->prot_sg = NULL;
2710 prm->prot_seg_cnt = 0;
2713 if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) {
2714 if (qlt_pci_map_calc_cnt(prm) != 0)
2718 *full_req_cnt = prm->req_cnt;
2720 if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
2721 prm->residual = se_cmd->residual_count;
2722 ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c,
2723 "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2724 prm->residual, se_cmd->tag,
2725 se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
2726 cmd->bufflen, prm->rq_result);
2727 prm->rq_result |= SS_RESIDUAL_UNDER;
2728 } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
2729 prm->residual = se_cmd->residual_count;
2730 ql_dbg_qp(ql_dbg_io, qpair, 0x305d,
2731 "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2732 prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
2733 se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
2734 prm->rq_result |= SS_RESIDUAL_OVER;
2737 if (xmit_type & QLA_TGT_XMIT_STATUS) {
2739 * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be
2740 * ignored in *xmit_response() below
2742 if (qlt_has_data(cmd)) {
2743 if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
2744 (IS_FWI2_CAPABLE(cmd->vha->hw) &&
2745 (prm->rq_result != 0))) {
2746 prm->add_status_pkt = 1;
2755 static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd,
2758 if (cmd->qpair->enable_class_2)
2762 return cmd->conf_compl_supported;
2764 return cmd->qpair->enable_explicit_conf &&
2765 cmd->conf_compl_supported;
2768 static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
2769 struct qla_tgt_prm *prm)
2771 prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
2772 (uint32_t)sizeof(ctio->u.status1.sense_data));
2773 ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
2774 if (qlt_need_explicit_conf(prm->cmd, 0)) {
2775 ctio->u.status0.flags |= cpu_to_le16(
2776 CTIO7_FLAGS_EXPLICIT_CONFORM |
2777 CTIO7_FLAGS_CONFORM_REQ);
2779 ctio->u.status0.residual = cpu_to_le32(prm->residual);
2780 ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result);
2781 if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
2784 if (qlt_need_explicit_conf(prm->cmd, 1)) {
2785 if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) {
2786 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017,
2787 "Skipping EXPLICIT_CONFORM and "
2788 "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
2789 "non GOOD status\n");
2790 goto skip_explict_conf;
2792 ctio->u.status1.flags |= cpu_to_le16(
2793 CTIO7_FLAGS_EXPLICIT_CONFORM |
2794 CTIO7_FLAGS_CONFORM_REQ);
2797 ctio->u.status1.flags &=
2798 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2799 ctio->u.status1.flags |=
2800 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2801 ctio->u.status1.scsi_status |=
2802 cpu_to_le16(SS_SENSE_LEN_VALID);
2803 ctio->u.status1.sense_length =
2804 cpu_to_le16(prm->sense_buffer_len);
2805 for (i = 0; i < prm->sense_buffer_len/4; i++)
2806 ((uint32_t *)ctio->u.status1.sense_data)[i] =
2807 cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]);
2809 qlt_print_dif_err(prm);
2812 ctio->u.status1.flags &=
2813 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2814 ctio->u.status1.flags |=
2815 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2816 ctio->u.status1.sense_length = 0;
2817 memset(ctio->u.status1.sense_data, 0,
2818 sizeof(ctio->u.status1.sense_data));
2821 /* Sense with len > 24, is it possible ??? */
2825 qlt_hba_err_chk_enabled(struct se_cmd *se_cmd)
2827 switch (se_cmd->prot_op) {
2828 case TARGET_PROT_DOUT_INSERT:
2829 case TARGET_PROT_DIN_STRIP:
2830 if (ql2xenablehba_err_chk >= 1)
2833 case TARGET_PROT_DOUT_PASS:
2834 case TARGET_PROT_DIN_PASS:
2835 if (ql2xenablehba_err_chk >= 2)
2838 case TARGET_PROT_DIN_INSERT:
2839 case TARGET_PROT_DOUT_STRIP:
2848 qla_tgt_ref_mask_check(struct se_cmd *se_cmd)
2850 switch (se_cmd->prot_op) {
2851 case TARGET_PROT_DIN_INSERT:
2852 case TARGET_PROT_DOUT_INSERT:
2853 case TARGET_PROT_DIN_STRIP:
2854 case TARGET_PROT_DOUT_STRIP:
2855 case TARGET_PROT_DIN_PASS:
2856 case TARGET_PROT_DOUT_PASS:
2865 * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command
2868 qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx,
2869 uint16_t *pfw_prot_opts)
2871 struct se_cmd *se_cmd = &cmd->se_cmd;
2872 uint32_t lba = 0xffffffff & se_cmd->t_task_lba;
2873 scsi_qla_host_t *vha = cmd->tgt->vha;
2874 struct qla_hw_data *ha = vha->hw;
2878 * wait till Mode Sense/Select cmd, modepage Ah, subpage 2
2879 * have been immplemented by TCM, before AppTag is avail.
2880 * Look for modesense_handlers[]
2883 ctx->app_tag_mask[0] = 0x0;
2884 ctx->app_tag_mask[1] = 0x0;
2886 if (IS_PI_UNINIT_CAPABLE(ha)) {
2887 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
2888 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
2889 *pfw_prot_opts |= PO_DIS_VALD_APP_ESC;
2890 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
2891 *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
2894 t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts);
2896 switch (se_cmd->prot_type) {
2897 case TARGET_DIF_TYPE0_PROT:
2899 * No check for ql2xenablehba_err_chk, as it
2900 * would be an I/O error if hba tag generation
2903 ctx->ref_tag = cpu_to_le32(lba);
2904 /* enable ALL bytes of the ref tag */
2905 ctx->ref_tag_mask[0] = 0xff;
2906 ctx->ref_tag_mask[1] = 0xff;
2907 ctx->ref_tag_mask[2] = 0xff;
2908 ctx->ref_tag_mask[3] = 0xff;
2910 case TARGET_DIF_TYPE1_PROT:
2912 * For TYPE 1 protection: 16 bit GUARD tag, 32 bit
2913 * REF tag, and 16 bit app tag.
2915 ctx->ref_tag = cpu_to_le32(lba);
2916 if (!qla_tgt_ref_mask_check(se_cmd) ||
2917 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
2918 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2921 /* enable ALL bytes of the ref tag */
2922 ctx->ref_tag_mask[0] = 0xff;
2923 ctx->ref_tag_mask[1] = 0xff;
2924 ctx->ref_tag_mask[2] = 0xff;
2925 ctx->ref_tag_mask[3] = 0xff;
2927 case TARGET_DIF_TYPE2_PROT:
2929 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF
2930 * tag has to match LBA in CDB + N
2932 ctx->ref_tag = cpu_to_le32(lba);
2933 if (!qla_tgt_ref_mask_check(se_cmd) ||
2934 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
2935 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2938 /* enable ALL bytes of the ref tag */
2939 ctx->ref_tag_mask[0] = 0xff;
2940 ctx->ref_tag_mask[1] = 0xff;
2941 ctx->ref_tag_mask[2] = 0xff;
2942 ctx->ref_tag_mask[3] = 0xff;
2944 case TARGET_DIF_TYPE3_PROT:
2945 /* For TYPE 3 protection: 16 bit GUARD only */
2946 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2947 ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] =
2948 ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00;
2954 qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm)
2957 uint32_t transfer_length = 0;
2958 uint32_t data_bytes;
2960 uint8_t bundling = 1;
2961 struct crc_context *crc_ctx_pkt = NULL;
2962 struct qla_hw_data *ha;
2963 struct ctio_crc2_to_fw *pkt;
2964 dma_addr_t crc_ctx_dma;
2965 uint16_t fw_prot_opts = 0;
2966 struct qla_tgt_cmd *cmd = prm->cmd;
2967 struct se_cmd *se_cmd = &cmd->se_cmd;
2969 struct atio_from_isp *atio = &prm->cmd->atio;
2970 struct qla_tc_param tc;
2972 scsi_qla_host_t *vha = cmd->vha;
2976 pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr;
2978 memset(pkt, 0, sizeof(*pkt));
2980 ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071,
2981 "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n",
2982 cmd->vp_idx, __func__, se_cmd, se_cmd->prot_op,
2983 prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba);
2985 if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) ||
2986 (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP))
2989 /* Compute dif len and adjust data len to incude protection */
2990 data_bytes = cmd->bufflen;
2991 dif_bytes = (data_bytes / cmd->blk_sz) * 8;
2993 switch (se_cmd->prot_op) {
2994 case TARGET_PROT_DIN_INSERT:
2995 case TARGET_PROT_DOUT_STRIP:
2996 transfer_length = data_bytes;
2997 if (cmd->prot_sg_cnt)
2998 data_bytes += dif_bytes;
3000 case TARGET_PROT_DIN_STRIP:
3001 case TARGET_PROT_DOUT_INSERT:
3002 case TARGET_PROT_DIN_PASS:
3003 case TARGET_PROT_DOUT_PASS:
3004 transfer_length = data_bytes + dif_bytes;
3011 if (!qlt_hba_err_chk_enabled(se_cmd))
3012 fw_prot_opts |= 0x10; /* Disable Guard tag checking */
3013 /* HBA error checking enabled */
3014 else if (IS_PI_UNINIT_CAPABLE(ha)) {
3015 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
3016 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
3017 fw_prot_opts |= PO_DIS_VALD_APP_ESC;
3018 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
3019 fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
3022 switch (se_cmd->prot_op) {
3023 case TARGET_PROT_DIN_INSERT:
3024 case TARGET_PROT_DOUT_INSERT:
3025 fw_prot_opts |= PO_MODE_DIF_INSERT;
3027 case TARGET_PROT_DIN_STRIP:
3028 case TARGET_PROT_DOUT_STRIP:
3029 fw_prot_opts |= PO_MODE_DIF_REMOVE;
3031 case TARGET_PROT_DIN_PASS:
3032 case TARGET_PROT_DOUT_PASS:
3033 fw_prot_opts |= PO_MODE_DIF_PASS;
3034 /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */
3036 default:/* Normal Request */
3037 fw_prot_opts |= PO_MODE_DIF_PASS;
3042 /* Update entry type to indicate Command Type CRC_2 IOCB */
3043 pkt->entry_type = CTIO_CRC2;
3044 pkt->entry_count = 1;
3045 pkt->vp_index = cmd->vp_idx;
3047 h = qlt_make_handle(qpair);
3048 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
3050 * CTIO type 7 from the firmware doesn't provide a way to
3051 * know the initiator's LOOP ID, hence we can't find
3052 * the session and, so, the command.
3056 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
3058 pkt->handle = MAKE_HANDLE(qpair->req->id, h);
3059 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
3060 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
3061 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3062 pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
3063 pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
3064 pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
3065 pkt->exchange_addr = atio->u.isp24.exchange_addr;
3067 /* silence compile warning */
3068 t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3069 pkt->ox_id = cpu_to_le16(t16);
3071 t16 = (atio->u.isp24.attr << 9);
3072 pkt->flags |= cpu_to_le16(t16);
3073 pkt->relative_offset = cpu_to_le32(prm->cmd->offset);
3075 /* Set transfer direction */
3076 if (cmd->dma_data_direction == DMA_TO_DEVICE)
3077 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN);
3078 else if (cmd->dma_data_direction == DMA_FROM_DEVICE)
3079 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT);
3081 pkt->dseg_count = prm->tot_dsds;
3082 /* Fibre channel byte count */
3083 pkt->transfer_length = cpu_to_le32(transfer_length);
3085 /* ----- CRC context -------- */
3087 /* Allocate CRC context from global pool */
3088 crc_ctx_pkt = cmd->ctx =
3089 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
3092 goto crc_queuing_error;
3094 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
3095 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
3098 crc_ctx_pkt->handle = pkt->handle;
3100 qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts);
3102 pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma));
3103 pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma));
3104 pkt->crc_context_len = CRC_CONTEXT_LEN_FW;
3107 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address;
3110 * Configure Bundling if we need to fetch interlaving
3111 * protection PCI accesses
3113 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
3114 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
3115 crc_ctx_pkt->u.bundling.dseg_count =
3116 cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt);
3117 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address;
3120 /* Finish the common fields of CRC pkt */
3121 crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz);
3122 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
3123 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
3124 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
3126 memset((uint8_t *)&tc, 0 , sizeof(tc));
3128 tc.blk_sz = cmd->blk_sz;
3129 tc.bufflen = cmd->bufflen;
3131 tc.prot_sg = cmd->prot_sg;
3132 tc.ctx = crc_ctx_pkt;
3133 tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced;
3135 /* Walks data segments */
3136 pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR);
3138 if (!bundling && prm->prot_seg_cnt) {
3139 if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd,
3140 prm->tot_dsds, &tc))
3141 goto crc_queuing_error;
3142 } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd,
3143 (prm->tot_dsds - prm->prot_seg_cnt), &tc))
3144 goto crc_queuing_error;
3146 if (bundling && prm->prot_seg_cnt) {
3147 /* Walks dif segments */
3148 pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA;
3150 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address;
3151 if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd,
3152 prm->prot_seg_cnt, &tc))
3153 goto crc_queuing_error;
3158 /* Cleanup will be performed by the caller */
3159 qpair->req->outstanding_cmds[h] = NULL;
3161 return QLA_FUNCTION_FAILED;
3165 * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and *
3166 * QLA_TGT_XMIT_STATUS for >= 24xx silicon
3168 int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
3169 uint8_t scsi_status)
3171 struct scsi_qla_host *vha = cmd->vha;
3172 struct qla_qpair *qpair = cmd->qpair;
3173 struct ctio7_to_24xx *pkt;
3174 struct qla_tgt_prm prm;
3175 uint32_t full_req_cnt = 0;
3176 unsigned long flags = 0;
3179 if (cmd->sess && cmd->sess->deleted) {
3180 cmd->state = QLA_TGT_STATE_PROCESSED;
3181 if (cmd->sess->logout_completed)
3182 /* no need to terminate. FW already freed exchange. */
3183 qlt_abort_cmd_on_host_reset(cmd->vha, cmd);
3185 qlt_send_term_exchange(qpair, cmd, &cmd->atio, 0, 0);
3189 ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018,
3190 "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n",
3191 (xmit_type & QLA_TGT_XMIT_STATUS) ?
3192 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction,
3193 &cmd->se_cmd, qpair->id);
3195 res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
3197 if (unlikely(res != 0)) {
3201 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3203 if (xmit_type == QLA_TGT_XMIT_STATUS)
3204 qpair->tgt_counters.core_qla_snd_status++;
3206 qpair->tgt_counters.core_qla_que_buf++;
3208 if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) {
3210 * Either the port is not online or this request was from
3211 * previous life, just abort the processing.
3213 cmd->state = QLA_TGT_STATE_PROCESSED;
3214 qlt_abort_cmd_on_host_reset(cmd->vha, cmd);
3215 ql_dbg_qp(ql_dbg_async, qpair, 0xe101,
3216 "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
3217 vha->flags.online, qla2x00_reset_active(vha),
3218 cmd->reset_count, qpair->chip_reset);
3220 goto out_unmap_unlock;
3223 /* Does F/W have an IOCBs for this request */
3224 res = qlt_check_reserve_free_req(qpair, full_req_cnt);
3226 goto out_unmap_unlock;
3228 if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA))
3229 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3231 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3232 if (unlikely(res != 0)) {
3233 qpair->req->cnt += full_req_cnt;
3234 goto out_unmap_unlock;
3237 pkt = (struct ctio7_to_24xx *)prm.pkt;
3239 if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
3240 pkt->u.status0.flags |=
3241 cpu_to_le16(CTIO7_FLAGS_DATA_IN |
3242 CTIO7_FLAGS_STATUS_MODE_0);
3244 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3245 qlt_load_data_segments(&prm);
3247 if (prm.add_status_pkt == 0) {
3248 if (xmit_type & QLA_TGT_XMIT_STATUS) {
3249 pkt->u.status0.scsi_status =
3250 cpu_to_le16(prm.rq_result);
3251 pkt->u.status0.residual =
3252 cpu_to_le32(prm.residual);
3253 pkt->u.status0.flags |= cpu_to_le16(
3254 CTIO7_FLAGS_SEND_STATUS);
3255 if (qlt_need_explicit_conf(cmd, 0)) {
3256 pkt->u.status0.flags |=
3258 CTIO7_FLAGS_EXPLICIT_CONFORM |
3259 CTIO7_FLAGS_CONFORM_REQ);
3265 * We have already made sure that there is sufficient
3266 * amount of request entries to not drop HW lock in
3269 struct ctio7_to_24xx *ctio =
3270 (struct ctio7_to_24xx *)qlt_get_req_pkt(
3273 ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e,
3274 "Building additional status packet 0x%p.\n",
3278 * T10Dif: ctio_crc2_to_fw overlay ontop of
3281 memcpy(ctio, pkt, sizeof(*ctio));
3282 /* reset back to CTIO7 */
3283 ctio->entry_count = 1;
3284 ctio->entry_type = CTIO_TYPE7;
3285 ctio->dseg_count = 0;
3286 ctio->u.status1.flags &= ~cpu_to_le16(
3287 CTIO7_FLAGS_DATA_IN);
3289 /* Real finish is ctio_m1's finish */
3290 pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
3291 pkt->u.status0.flags |= cpu_to_le16(
3292 CTIO7_FLAGS_DONT_RET_CTIO);
3294 /* qlt_24xx_init_ctio_to_isp will correct
3295 * all neccessary fields that's part of CTIO7.
3296 * There should be no residual of CTIO-CRC2 data.
3298 qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio,
3302 qlt_24xx_init_ctio_to_isp(pkt, &prm);
3305 cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */
3306 cmd->cmd_sent_to_fw = 1;
3308 /* Memory Barrier */
3310 if (qpair->reqq_start_iocbs)
3311 qpair->reqq_start_iocbs(qpair);
3313 qla2x00_start_iocbs(vha, qpair->req);
3314 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3319 qlt_unmap_sg(vha, cmd);
3320 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3324 EXPORT_SYMBOL(qlt_xmit_response);
3326 int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
3328 struct ctio7_to_24xx *pkt;
3329 struct scsi_qla_host *vha = cmd->vha;
3330 struct qla_tgt *tgt = cmd->tgt;
3331 struct qla_tgt_prm prm;
3332 unsigned long flags = 0;
3334 struct qla_qpair *qpair = cmd->qpair;
3336 memset(&prm, 0, sizeof(prm));
3342 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3343 (cmd->sess && cmd->sess->deleted)) {
3345 * Either the port is not online or this request was from
3346 * previous life, just abort the processing.
3348 cmd->state = QLA_TGT_STATE_NEED_DATA;
3349 qlt_abort_cmd_on_host_reset(cmd->vha, cmd);
3350 ql_dbg_qp(ql_dbg_async, qpair, 0xe102,
3351 "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
3352 vha->flags.online, qla2x00_reset_active(vha),
3353 cmd->reset_count, qpair->chip_reset);
3357 /* Calculate number of entries and segments required */
3358 if (qlt_pci_map_calc_cnt(&prm) != 0)
3361 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3362 /* Does F/W have an IOCBs for this request */
3363 res = qlt_check_reserve_free_req(qpair, prm.req_cnt);
3365 goto out_unlock_free_unmap;
3366 if (cmd->se_cmd.prot_op)
3367 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3369 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3371 if (unlikely(res != 0)) {
3372 qpair->req->cnt += prm.req_cnt;
3373 goto out_unlock_free_unmap;
3376 pkt = (struct ctio7_to_24xx *)prm.pkt;
3377 pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
3378 CTIO7_FLAGS_STATUS_MODE_0);
3380 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3381 qlt_load_data_segments(&prm);
3383 cmd->state = QLA_TGT_STATE_NEED_DATA;
3384 cmd->cmd_sent_to_fw = 1;
3386 /* Memory Barrier */
3388 if (qpair->reqq_start_iocbs)
3389 qpair->reqq_start_iocbs(qpair);
3391 qla2x00_start_iocbs(vha, qpair->req);
3392 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3396 out_unlock_free_unmap:
3397 qlt_unmap_sg(vha, cmd);
3398 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3402 EXPORT_SYMBOL(qlt_rdy_to_xfer);
3406 * it is assumed either hardware_lock or qpair lock is held.
3409 qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
3410 struct ctio_crc_from_fw *sts)
3412 uint8_t *ap = &sts->actual_dif[0];
3413 uint8_t *ep = &sts->expected_dif[0];
3414 uint64_t lba = cmd->se_cmd.t_task_lba;
3415 uint8_t scsi_status, sense_key, asc, ascq;
3416 unsigned long flags;
3417 struct scsi_qla_host *vha = cmd->vha;
3419 cmd->trc_flags |= TRC_DIF_ERR;
3421 cmd->a_guard = be16_to_cpu(*(uint16_t *)(ap + 0));
3422 cmd->a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2));
3423 cmd->a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4));
3425 cmd->e_guard = be16_to_cpu(*(uint16_t *)(ep + 0));
3426 cmd->e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2));
3427 cmd->e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4));
3429 ql_dbg(ql_dbg_tgt_dif, vha, 0xf075,
3430 "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state);
3432 scsi_status = sense_key = asc = ascq = 0;
3434 /* check appl tag */
3435 if (cmd->e_app_tag != cmd->a_app_tag) {
3436 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d,
3437 "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]",
3438 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3439 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3440 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3441 cmd->atio.u.isp24.fcp_hdr.ox_id);
3443 cmd->dif_err_code = DIF_ERR_APP;
3444 scsi_status = SAM_STAT_CHECK_CONDITION;
3445 sense_key = ABORTED_COMMAND;
3451 if (cmd->e_ref_tag != cmd->a_ref_tag) {
3452 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e,
3453 "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] ",
3454 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3455 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3456 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3457 cmd->atio.u.isp24.fcp_hdr.ox_id);
3459 cmd->dif_err_code = DIF_ERR_REF;
3460 scsi_status = SAM_STAT_CHECK_CONDITION;
3461 sense_key = ABORTED_COMMAND;
3468 if (cmd->e_guard != cmd->a_guard) {
3469 ql_dbg(ql_dbg_tgt_dif, vha, 0xe012,
3470 "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]",
3471 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3472 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3473 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3474 cmd->atio.u.isp24.fcp_hdr.ox_id);
3476 cmd->dif_err_code = DIF_ERR_GRD;
3477 scsi_status = SAM_STAT_CHECK_CONDITION;
3478 sense_key = ABORTED_COMMAND;
3483 switch (cmd->state) {
3484 case QLA_TGT_STATE_NEED_DATA:
3485 /* handle_data will load DIF error code */
3486 cmd->state = QLA_TGT_STATE_DATA_IN;
3487 vha->hw->tgt.tgt_ops->handle_data(cmd);
3490 spin_lock_irqsave(&cmd->cmd_lock, flags);
3492 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3493 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3496 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3498 qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc,
3500 /* assume scsi status gets out on the wire.
3501 * Will not wait for completion.
3503 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3508 /* If hardware_lock held on entry, might drop it, then reaquire */
3509 /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */
3510 static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3511 struct imm_ntfy_from_isp *ntfy)
3513 struct nack_to_isp *nack;
3514 struct qla_hw_data *ha = vha->hw;
3518 ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c,
3519 "Sending TERM ELS CTIO (ha=%p)\n", ha);
3521 pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
3523 ql_dbg(ql_dbg_tgt, vha, 0xe080,
3524 "qla_target(%d): %s failed: unable to allocate "
3525 "request packet\n", vha->vp_idx, __func__);
3529 pkt->entry_type = NOTIFY_ACK_TYPE;
3530 pkt->entry_count = 1;
3531 pkt->handle = QLA_TGT_SKIP_HANDLE;
3533 nack = (struct nack_to_isp *)pkt;
3534 nack->ox_id = ntfy->ox_id;
3536 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3537 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3538 nack->u.isp24.flags = ntfy->u.isp24.flags &
3539 __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB);
3543 nack->u.isp24.flags |=
3544 __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE);
3546 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3547 nack->u.isp24.status = ntfy->u.isp24.status;
3548 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3549 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3550 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3551 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3552 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3553 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3555 qla2x00_start_iocbs(vha, vha->req);
3559 static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3560 struct imm_ntfy_from_isp *imm, int ha_locked)
3562 unsigned long flags = 0;
3566 rc = __qlt_send_term_imm_notif(vha, imm);
3570 qlt_alloc_qfull_cmd(vha, imm, 0, 0);
3578 spin_lock_irqsave(&vha->hw->hardware_lock, flags);
3579 rc = __qlt_send_term_imm_notif(vha, imm);
3583 qlt_alloc_qfull_cmd(vha, imm, 0, 0);
3588 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
3592 * If hardware_lock held on entry, might drop it, then reaquire
3593 * This function sends the appropriate CTIO to ISP 2xxx or 24xx
3595 static int __qlt_send_term_exchange(struct qla_qpair *qpair,
3596 struct qla_tgt_cmd *cmd,
3597 struct atio_from_isp *atio)
3599 struct scsi_qla_host *vha = qpair->vha;
3600 struct ctio7_to_24xx *ctio24;
3601 struct qla_hw_data *ha = vha->hw;
3606 ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha);
3611 pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL);
3613 ql_dbg(ql_dbg_tgt, vha, 0xe050,
3614 "qla_target(%d): %s failed: unable to allocate "
3615 "request packet\n", vha->vp_idx, __func__);
3620 if (cmd->state < QLA_TGT_STATE_PROCESSED) {
3621 ql_dbg(ql_dbg_tgt, vha, 0xe051,
3622 "qla_target(%d): Terminating cmd %p with "
3623 "incorrect state %d\n", vha->vp_idx, cmd,
3629 qpair->tgt_counters.num_term_xchg_sent++;
3630 pkt->entry_count = 1;
3631 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
3633 ctio24 = (struct ctio7_to_24xx *)pkt;
3634 ctio24->entry_type = CTIO_TYPE7;
3635 ctio24->nport_handle = CTIO7_NHANDLE_UNRECOGNIZED;
3636 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3637 ctio24->vp_index = vha->vp_idx;
3638 ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
3639 ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
3640 ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
3641 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
3642 temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 |
3643 CTIO7_FLAGS_TERMINATE;
3644 ctio24->u.status1.flags = cpu_to_le16(temp);
3645 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3646 ctio24->u.status1.ox_id = cpu_to_le16(temp);
3648 /* Memory Barrier */
3650 if (qpair->reqq_start_iocbs)
3651 qpair->reqq_start_iocbs(qpair);
3653 qla2x00_start_iocbs(vha, qpair->req);
3657 static void qlt_send_term_exchange(struct qla_qpair *qpair,
3658 struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked,
3661 struct scsi_qla_host *vha;
3662 unsigned long flags = 0;
3665 /* why use different vha? NPIV */
3672 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3674 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3677 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3678 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3680 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3683 if (cmd && !ul_abort && !cmd->aborted) {
3685 qlt_unmap_sg(vha, cmd);
3686 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3690 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3695 static void qlt_init_term_exchange(struct scsi_qla_host *vha)
3697 struct list_head free_list;
3698 struct qla_tgt_cmd *cmd, *tcmd;
3700 vha->hw->tgt.leak_exchg_thresh_hold =
3701 (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT;
3704 if (!list_empty(&vha->hw->tgt.q_full_list)) {
3705 INIT_LIST_HEAD(&free_list);
3706 list_splice_init(&vha->hw->tgt.q_full_list, &free_list);
3708 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
3709 list_del(&cmd->cmd_list);
3710 /* This cmd was never sent to TCM. There is no need
3711 * to schedule free or call free_cmd
3714 vha->hw->tgt.num_qfull_cmds_alloc--;
3717 vha->hw->tgt.num_qfull_cmds_dropped = 0;
3720 static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha)
3722 uint32_t total_leaked;
3724 total_leaked = vha->hw->tgt.num_qfull_cmds_dropped;
3726 if (vha->hw->tgt.leak_exchg_thresh_hold &&
3727 (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) {
3729 ql_dbg(ql_dbg_tgt, vha, 0xe079,
3730 "Chip reset due to exchange starvation: %d/%d.\n",
3731 total_leaked, vha->hw->cur_fw_xcb_count);
3733 if (IS_P3P_TYPE(vha->hw))
3734 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3736 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3737 qla2xxx_wake_dpc(vha);
3742 int qlt_abort_cmd(struct qla_tgt_cmd *cmd)
3744 struct qla_tgt *tgt = cmd->tgt;
3745 struct scsi_qla_host *vha = tgt->vha;
3746 struct se_cmd *se_cmd = &cmd->se_cmd;
3747 unsigned long flags;
3749 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
3750 "qla_target(%d): terminating exchange for aborted cmd=%p "
3751 "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd,
3754 spin_lock_irqsave(&cmd->cmd_lock, flags);
3757 qlt_unmap_sg(vha, cmd);
3759 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3761 * It's normal to see 2 calls in this path:
3762 * 1) XFER Rdy completion + CMD_T_ABORT
3763 * 2) TCM TMR - drain_state_list
3765 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016,
3766 "multiple abort. %p transport_state %x, t_state %x, "
3767 "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state,
3768 cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags);
3772 cmd->trc_flags |= TRC_ABORT;
3773 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3775 qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1);
3778 EXPORT_SYMBOL(qlt_abort_cmd);
3780 void qlt_free_cmd(struct qla_tgt_cmd *cmd)
3782 struct fc_port *sess = cmd->sess;
3784 ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074,
3785 "%s: se_cmd[%p] ox_id %04x\n",
3786 __func__, &cmd->se_cmd,
3787 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
3789 BUG_ON(cmd->cmd_in_wq);
3792 qlt_decr_num_pend_cmds(cmd->vha);
3794 BUG_ON(cmd->sg_mapped);
3795 cmd->jiffies_at_free = get_jiffies_64();
3796 if (unlikely(cmd->free_sg))
3799 if (!sess || !sess->se_sess) {
3803 cmd->jiffies_at_free = get_jiffies_64();
3804 target_free_tag(sess->se_sess, &cmd->se_cmd);
3806 EXPORT_SYMBOL(qlt_free_cmd);
3809 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3811 static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio,
3812 struct qla_tgt_cmd *cmd, uint32_t status)
3815 struct scsi_qla_host *vha = qpair->vha;
3817 if (cmd->se_cmd.prot_op)
3818 ql_dbg(ql_dbg_tgt_dif, vha, 0xe013,
3819 "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] "
3820 "se_cmd=%p tag[%x] op %#x/%s",
3822 cmd->num_blks, &cmd->se_cmd,
3823 cmd->atio.u.isp24.exchange_addr,
3824 cmd->se_cmd.prot_op,
3825 prot_op_str(cmd->se_cmd.prot_op));
3828 struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
3830 cpu_to_le16(OF_TERM_EXCH));
3835 qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0);
3841 /* ha->hardware_lock supposed to be held on entry */
3842 static struct qla_tgt_cmd *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
3843 struct rsp_que *rsp, uint32_t handle, void *ctio)
3845 struct qla_tgt_cmd *cmd = NULL;
3846 struct req_que *req;
3847 int qid = GET_QID(handle);
3848 uint32_t h = handle & ~QLA_TGT_HANDLE_MASK;
3850 if (unlikely(h == QLA_TGT_SKIP_HANDLE))
3853 if (qid == rsp->req->id) {
3855 } else if (vha->hw->req_q_map[qid]) {
3856 ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a,
3857 "qla_target(%d): CTIO completion with different QID %d handle %x\n",
3858 vha->vp_idx, rsp->id, handle);
3859 req = vha->hw->req_q_map[qid];
3864 h &= QLA_CMD_HANDLE_MASK;
3866 if (h != QLA_TGT_NULL_HANDLE) {
3867 if (unlikely(h >= req->num_outstanding_cmds)) {
3868 ql_dbg(ql_dbg_tgt, vha, 0xe052,
3869 "qla_target(%d): Wrong handle %x received\n",
3870 vha->vp_idx, handle);
3874 cmd = (struct qla_tgt_cmd *)req->outstanding_cmds[h];
3875 if (unlikely(cmd == NULL)) {
3876 ql_dbg(ql_dbg_async, vha, 0xe053,
3877 "qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n",
3878 vha->vp_idx, handle, req->id, rsp->id);
3881 req->outstanding_cmds[h] = NULL;
3882 } else if (ctio != NULL) {
3883 /* We can't get loop ID from CTIO7 */
3884 ql_dbg(ql_dbg_tgt, vha, 0xe054,
3885 "qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
3886 "support NULL handles\n", vha->vp_idx);
3893 /* hardware_lock should be held by caller. */
3895 qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd)
3897 struct qla_hw_data *ha = vha->hw;
3900 qlt_unmap_sg(vha, cmd);
3902 /* TODO: fix debug message type and ids. */
3903 if (cmd->state == QLA_TGT_STATE_PROCESSED) {
3904 ql_dbg(ql_dbg_io, vha, 0xff00,
3905 "HOST-ABORT: state=PROCESSED.\n");
3906 } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
3907 cmd->write_data_transferred = 0;
3908 cmd->state = QLA_TGT_STATE_DATA_IN;
3910 ql_dbg(ql_dbg_io, vha, 0xff01,
3911 "HOST-ABORT: state=DATA_IN.\n");
3913 ha->tgt.tgt_ops->handle_data(cmd);
3916 ql_dbg(ql_dbg_io, vha, 0xff03,
3917 "HOST-ABORT: state=BAD(%d).\n",
3922 cmd->trc_flags |= TRC_FLUSH;
3923 ha->tgt.tgt_ops->free_cmd(cmd);
3927 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3929 static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
3930 struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio)
3932 struct qla_hw_data *ha = vha->hw;
3933 struct se_cmd *se_cmd;
3934 struct qla_tgt_cmd *cmd;
3935 struct qla_qpair *qpair = rsp->qpair;
3937 if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
3938 /* That could happen only in case of an error/reset/abort */
3939 if (status != CTIO_SUCCESS) {
3940 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
3941 "Intermediate CTIO received"
3942 " (status %x)\n", status);
3947 cmd = qlt_ctio_to_cmd(vha, rsp, handle, ctio);
3951 se_cmd = &cmd->se_cmd;
3952 cmd->cmd_sent_to_fw = 0;
3954 qlt_unmap_sg(vha, cmd);
3956 if (unlikely(status != CTIO_SUCCESS)) {
3957 switch (status & 0xFFFF) {
3958 case CTIO_LIP_RESET:
3959 case CTIO_TARGET_RESET:
3961 /* driver request abort via Terminate exchange */
3963 case CTIO_INVALID_RX_ID:
3965 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
3966 "qla_target(%d): CTIO with "
3967 "status %#x received, state %x, se_cmd %p, "
3968 "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
3969 "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx,
3970 status, cmd->state, se_cmd);
3973 case CTIO_PORT_LOGGED_OUT:
3974 case CTIO_PORT_UNAVAILABLE:
3977 (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT;
3979 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
3980 "qla_target(%d): CTIO with %s status %x "
3981 "received (state %x, se_cmd %p)\n", vha->vp_idx,
3982 logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
3983 status, cmd->state, se_cmd);
3985 if (logged_out && cmd->sess) {
3987 * Session is already logged out, but we need
3988 * to notify initiator, who's not aware of this
3990 cmd->sess->logout_on_delete = 0;
3991 cmd->sess->send_els_logo = 1;
3992 ql_dbg(ql_dbg_disc, vha, 0x20f8,
3993 "%s %d %8phC post del sess\n",
3994 __func__, __LINE__, cmd->sess->port_name);
3996 qlt_schedule_sess_for_deletion(cmd->sess);
4000 case CTIO_DIF_ERROR: {
4001 struct ctio_crc_from_fw *crc =
4002 (struct ctio_crc_from_fw *)ctio;
4003 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073,
4004 "qla_target(%d): CTIO with DIF_ERROR status %x "
4005 "received (state %x, ulp_cmd %p) actual_dif[0x%llx] "
4006 "expect_dif[0x%llx]\n",
4007 vha->vp_idx, status, cmd->state, se_cmd,
4008 *((u64 *)&crc->actual_dif[0]),
4009 *((u64 *)&crc->expected_dif[0]));
4011 qlt_handle_dif_error(qpair, cmd, ctio);
4015 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
4016 "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n",
4017 vha->vp_idx, status, cmd->state, se_cmd);
4022 /* "cmd->aborted" means
4023 * cmd is already aborted/terminated, we don't
4024 * need to terminate again. The exchange is already
4025 * cleaned up/freed at FW level. Just cleanup at driver
4028 if ((cmd->state != QLA_TGT_STATE_NEED_DATA) &&
4030 cmd->trc_flags |= TRC_CTIO_ERR;
4031 if (qlt_term_ctio_exchange(qpair, ctio, cmd, status))
4036 if (cmd->state == QLA_TGT_STATE_PROCESSED) {
4037 cmd->trc_flags |= TRC_CTIO_DONE;
4038 } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
4039 cmd->state = QLA_TGT_STATE_DATA_IN;
4041 if (status == CTIO_SUCCESS)
4042 cmd->write_data_transferred = 1;
4044 ha->tgt.tgt_ops->handle_data(cmd);
4046 } else if (cmd->aborted) {
4047 cmd->trc_flags |= TRC_CTIO_ABORTED;
4048 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
4049 "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
4051 cmd->trc_flags |= TRC_CTIO_STRANGE;
4052 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
4053 "qla_target(%d): A command in state (%d) should "
4054 "not return a CTIO complete\n", vha->vp_idx, cmd->state);
4057 if (unlikely(status != CTIO_SUCCESS) &&
4059 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n");
4063 ha->tgt.tgt_ops->free_cmd(cmd);
4066 static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
4071 switch (task_codes) {
4072 case ATIO_SIMPLE_QUEUE:
4073 fcp_task_attr = TCM_SIMPLE_TAG;
4075 case ATIO_HEAD_OF_QUEUE:
4076 fcp_task_attr = TCM_HEAD_TAG;
4078 case ATIO_ORDERED_QUEUE:
4079 fcp_task_attr = TCM_ORDERED_TAG;
4081 case ATIO_ACA_QUEUE:
4082 fcp_task_attr = TCM_ACA_TAG;
4085 fcp_task_attr = TCM_SIMPLE_TAG;
4088 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
4089 "qla_target: unknown task code %x, use ORDERED instead\n",
4091 fcp_task_attr = TCM_ORDERED_TAG;
4095 return fcp_task_attr;
4098 static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *,
4101 * Process context for I/O path into tcm_qla2xxx code
4103 static void __qlt_do_work(struct qla_tgt_cmd *cmd)
4105 scsi_qla_host_t *vha = cmd->vha;
4106 struct qla_hw_data *ha = vha->hw;
4107 struct fc_port *sess = cmd->sess;
4108 struct atio_from_isp *atio = &cmd->atio;
4110 unsigned long flags;
4111 uint32_t data_length;
4112 int ret, fcp_task_attr, data_dir, bidi = 0;
4113 struct qla_qpair *qpair = cmd->qpair;
4116 cmd->trc_flags |= TRC_DO_WORK;
4119 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082,
4120 "cmd with tag %u is aborted\n",
4121 cmd->atio.u.isp24.exchange_addr);
4125 spin_lock_init(&cmd->cmd_lock);
4126 cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
4127 cmd->se_cmd.tag = atio->u.isp24.exchange_addr;
4129 if (atio->u.isp24.fcp_cmnd.rddata &&
4130 atio->u.isp24.fcp_cmnd.wrdata) {
4132 data_dir = DMA_TO_DEVICE;
4133 } else if (atio->u.isp24.fcp_cmnd.rddata)
4134 data_dir = DMA_FROM_DEVICE;
4135 else if (atio->u.isp24.fcp_cmnd.wrdata)
4136 data_dir = DMA_TO_DEVICE;
4138 data_dir = DMA_NONE;
4140 fcp_task_attr = qlt_get_fcp_task_attr(vha,
4141 atio->u.isp24.fcp_cmnd.task_attr);
4142 data_length = get_datalen_for_atio(atio);
4144 ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length,
4145 fcp_task_attr, data_dir, bidi);
4149 * Drop extra session reference from qla_tgt_handle_cmd_for_atio*(
4151 ha->tgt.tgt_ops->put_sess(sess);
4155 ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd);
4157 * cmd has not sent to target yet, so pass NULL as the second
4158 * argument to qlt_send_term_exchange() and free the memory here.
4160 cmd->trc_flags |= TRC_DO_WORK_ERR;
4161 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
4162 qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0);
4164 qlt_decr_num_pend_cmds(vha);
4165 target_free_tag(sess->se_sess, &cmd->se_cmd);
4166 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
4168 ha->tgt.tgt_ops->put_sess(sess);
4171 static void qlt_do_work(struct work_struct *work)
4173 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
4174 scsi_qla_host_t *vha = cmd->vha;
4175 unsigned long flags;
4177 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4178 list_del(&cmd->cmd_list);
4179 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4184 void qlt_clr_qp_table(struct scsi_qla_host *vha)
4186 unsigned long flags;
4187 struct qla_hw_data *ha = vha->hw;
4188 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4192 ql_log(ql_log_info, vha, 0x706c,
4193 "User update Number of Active Qpairs %d\n",
4194 ha->tgt.num_act_qpairs);
4196 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4198 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
4199 btree_remove64(&tgt->lun_qpair_map, key);
4201 ha->base_qpair->lun_cnt = 0;
4202 for (key = 0; key < ha->max_qpairs; key++)
4203 if (ha->queue_pair_map[key])
4204 ha->queue_pair_map[key]->lun_cnt = 0;
4206 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4209 static void qlt_assign_qpair(struct scsi_qla_host *vha,
4210 struct qla_tgt_cmd *cmd)
4212 struct qla_qpair *qpair, *qp;
4213 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4214 struct qla_qpair_hint *h;
4216 if (vha->flags.qpairs_available) {
4217 h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun);
4219 /* spread lun to qpair ratio evently */
4221 struct scsi_qla_host *base_vha =
4222 pci_get_drvdata(vha->hw->pdev);
4224 qpair = vha->hw->base_qpair;
4225 if (qpair->lun_cnt == 0) {
4227 h = qla_qpair_to_hint(tgt, qpair);
4229 rc = btree_insert64(&tgt->lun_qpair_map,
4230 cmd->unpacked_lun, h, GFP_ATOMIC);
4233 ql_log(ql_log_info, vha, 0xd037,
4234 "Unable to insert lun %llx into lun_qpair_map\n",
4239 lcnt = qpair->lun_cnt;
4243 list_for_each_entry(qp, &base_vha->qp_list,
4245 if (qp->lun_cnt == 0) {
4247 h = qla_qpair_to_hint(tgt, qp);
4249 rc = btree_insert64(&tgt->lun_qpair_map,
4250 cmd->unpacked_lun, h, GFP_ATOMIC);
4253 ql_log(ql_log_info, vha, 0xd038,
4254 "Unable to insert lun %llx into lun_qpair_map\n",
4260 if (qp->lun_cnt < lcnt) {
4269 h = qla_qpair_to_hint(tgt, qpair);
4271 rc = btree_insert64(&tgt->lun_qpair_map,
4272 cmd->unpacked_lun, h, GFP_ATOMIC);
4275 ql_log(ql_log_info, vha, 0xd039,
4276 "Unable to insert lun %llx into lun_qpair_map\n",
4281 h = &tgt->qphints[0];
4284 cmd->qpair = h->qpair;
4285 cmd->se_cmd.cpuid = h->cpuid;
4288 static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
4289 struct fc_port *sess,
4290 struct atio_from_isp *atio)
4292 struct se_session *se_sess = sess->se_sess;
4293 struct qla_tgt_cmd *cmd;
4296 tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu);
4300 cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag];
4301 memset(cmd, 0, sizeof(struct qla_tgt_cmd));
4302 cmd->cmd_type = TYPE_TGT_CMD;
4303 memcpy(&cmd->atio, atio, sizeof(*atio));
4304 cmd->state = QLA_TGT_STATE_NEW;
4305 cmd->tgt = vha->vha_tgt.qla_tgt;
4306 qlt_incr_num_pend_cmds(vha);
4308 cmd->se_cmd.map_tag = tag;
4309 cmd->se_cmd.map_cpu = cpu;
4311 cmd->loop_id = sess->loop_id;
4312 cmd->conf_compl_supported = sess->conf_compl_supported;
4315 cmd->jiffies_at_alloc = get_jiffies_64();
4317 cmd->unpacked_lun = scsilun_to_int(
4318 (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
4319 qlt_assign_qpair(vha, cmd);
4320 cmd->reset_count = vha->hw->base_qpair->chip_reset;
4321 cmd->vp_idx = vha->vp_idx;
4326 /* ha->hardware_lock supposed to be held on entry */
4327 static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
4328 struct atio_from_isp *atio)
4330 struct qla_hw_data *ha = vha->hw;
4331 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4332 struct fc_port *sess;
4333 struct qla_tgt_cmd *cmd;
4334 unsigned long flags;
4337 if (unlikely(tgt->tgt_stop)) {
4338 ql_dbg(ql_dbg_io, vha, 0x3061,
4339 "New command while device %p is shutting down\n", tgt);
4343 id.b.al_pa = atio->u.isp24.fcp_hdr.s_id[2];
4344 id.b.area = atio->u.isp24.fcp_hdr.s_id[1];
4345 id.b.domain = atio->u.isp24.fcp_hdr.s_id[0];
4346 if (IS_SW_RESV_ADDR(id))
4349 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
4350 if (unlikely(!sess))
4353 /* Another WWN used to have our s_id. Our PLOGI scheduled its
4354 * session deletion, but it's still in sess_del_work wq */
4355 if (sess->deleted) {
4356 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
4357 "New command while old session %p is being deleted\n",
4363 * Do kref_get() before returning + dropping qla_hw_data->hardware_lock.
4365 if (!kref_get_unless_zero(&sess->sess_kref)) {
4366 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
4367 "%s: kref_get fail, %8phC oxid %x \n",
4368 __func__, sess->port_name,
4369 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
4373 cmd = qlt_get_tag(vha, sess, atio);
4375 ql_dbg(ql_dbg_io, vha, 0x3062,
4376 "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
4377 ha->tgt.tgt_ops->put_sess(sess);
4382 cmd->trc_flags |= TRC_NEW_CMD;
4384 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4385 list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);
4386 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4388 INIT_WORK(&cmd->work, qlt_do_work);
4389 if (vha->flags.qpairs_available) {
4390 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work);
4391 } else if (ha->msix_count) {
4392 if (cmd->atio.u.isp24.fcp_cmnd.rddata)
4393 queue_work_on(smp_processor_id(), qla_tgt_wq,
4396 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq,
4399 queue_work(qla_tgt_wq, &cmd->work);
4405 /* ha->hardware_lock supposed to be held on entry */
4406 static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
4407 int fn, void *iocb, int flags)
4409 struct scsi_qla_host *vha = sess->vha;
4410 struct qla_hw_data *ha = vha->hw;
4411 struct qla_tgt_mgmt_cmd *mcmd;
4412 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4413 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
4415 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4417 ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009,
4418 "qla_target(%d): Allocation of management "
4419 "command failed, some commands and their data could "
4420 "leak\n", vha->vp_idx);
4423 memset(mcmd, 0, sizeof(*mcmd));
4427 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4428 sizeof(mcmd->orig_iocb.imm_ntfy));
4430 mcmd->tmr_func = fn;
4431 mcmd->flags = flags;
4432 mcmd->reset_count = ha->base_qpair->chip_reset;
4433 mcmd->qpair = h->qpair;
4435 mcmd->se_cmd.cpuid = h->cpuid;
4436 mcmd->unpacked_lun = lun;
4439 case QLA_TGT_LUN_RESET:
4440 case QLA_TGT_CLEAR_TS:
4441 case QLA_TGT_ABORT_TS:
4442 abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id);
4444 case QLA_TGT_CLEAR_ACA:
4445 h = qlt_find_qphint(vha, mcmd->unpacked_lun);
4446 mcmd->qpair = h->qpair;
4447 mcmd->se_cmd.cpuid = h->cpuid;
4450 case QLA_TGT_TARGET_RESET:
4451 case QLA_TGT_NEXUS_LOSS_SESS:
4452 case QLA_TGT_NEXUS_LOSS:
4453 case QLA_TGT_ABORT_ALL:
4459 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
4460 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq,
4466 /* ha->hardware_lock supposed to be held on entry */
4467 static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
4469 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4470 struct qla_hw_data *ha = vha->hw;
4471 struct fc_port *sess;
4474 unsigned long flags;
4476 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
4478 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4479 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
4480 a->u.isp24.fcp_hdr.s_id);
4481 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4484 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4486 if (sess == NULL || sess->deleted)
4489 return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
4492 /* ha->hardware_lock supposed to be held on entry */
4493 static int __qlt_abort_task(struct scsi_qla_host *vha,
4494 struct imm_ntfy_from_isp *iocb, struct fc_port *sess)
4496 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4497 struct qla_hw_data *ha = vha->hw;
4498 struct qla_tgt_mgmt_cmd *mcmd;
4502 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4504 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f,
4505 "qla_target(%d): %s: Allocation of ABORT cmd failed\n",
4506 vha->vp_idx, __func__);
4509 memset(mcmd, 0, sizeof(*mcmd));
4512 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4513 sizeof(mcmd->orig_iocb.imm_ntfy));
4516 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4517 mcmd->reset_count = ha->base_qpair->chip_reset;
4518 mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK;
4519 mcmd->qpair = ha->base_qpair;
4521 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func,
4522 le16_to_cpu(iocb->u.isp2x.seq_id));
4524 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060,
4525 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
4527 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
4534 /* ha->hardware_lock supposed to be held on entry */
4535 static int qlt_abort_task(struct scsi_qla_host *vha,
4536 struct imm_ntfy_from_isp *iocb)
4538 struct qla_hw_data *ha = vha->hw;
4539 struct fc_port *sess;
4541 unsigned long flags;
4543 loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb);
4545 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4546 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
4547 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4550 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025,
4551 "qla_target(%d): task abort for unexisting "
4552 "session\n", vha->vp_idx);
4553 return qlt_sched_sess_work(vha->vha_tgt.qla_tgt,
4554 QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb));
4557 return __qlt_abort_task(vha, iocb, sess);
4560 void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
4562 if (rc != MBS_COMMAND_COMPLETE) {
4563 ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093,
4564 "%s: se_sess %p / sess %p from"
4565 " port %8phC loop_id %#04x s_id %02x:%02x:%02x"
4566 " LOGO failed: %#x\n",
4570 fcport->port_name, fcport->loop_id,
4571 fcport->d_id.b.domain, fcport->d_id.b.area,
4572 fcport->d_id.b.al_pa, rc);
4575 fcport->logout_completed = 1;
4579 * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list)
4581 * Schedules sessions with matching port_id/loop_id but different wwn for
4582 * deletion. Returns existing session with matching wwn if present.
4586 qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
4587 port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess)
4589 struct fc_port *sess = NULL, *other_sess;
4592 *conflict_sess = NULL;
4594 list_for_each_entry(other_sess, &vha->vp_fcports, list) {
4596 other_wwn = wwn_to_u64(other_sess->port_name);
4598 if (wwn == other_wwn) {
4604 /* find other sess with nport_id collision */
4605 if (port_id.b24 == other_sess->d_id.b24) {
4606 if (loop_id != other_sess->loop_id) {
4607 ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000c,
4608 "Invalidating sess %p loop_id %d wwn %llx.\n",
4609 other_sess, other_sess->loop_id, other_wwn);
4612 * logout_on_delete is set by default, but another
4613 * session that has the same s_id/loop_id combo
4614 * might have cleared it when requested this session
4615 * deletion, so don't touch it
4617 qlt_schedule_sess_for_deletion(other_sess);
4620 * Another wwn used to have our s_id/loop_id
4621 * kill the session, but don't free the loop_id
4623 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01b,
4624 "Invalidating sess %p loop_id %d wwn %llx.\n",
4625 other_sess, other_sess->loop_id, other_wwn);
4627 other_sess->keep_nport_handle = 1;
4628 if (other_sess->disc_state != DSC_DELETED)
4629 *conflict_sess = other_sess;
4630 qlt_schedule_sess_for_deletion(other_sess);
4635 /* find other sess with nport handle collision */
4636 if ((loop_id == other_sess->loop_id) &&
4637 (loop_id != FC_NO_LOOP_ID)) {
4638 ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000d,
4639 "Invalidating sess %p loop_id %d wwn %llx.\n",
4640 other_sess, other_sess->loop_id, other_wwn);
4642 /* Same loop_id but different s_id
4643 * Ok to kill and logout */
4644 qlt_schedule_sess_for_deletion(other_sess);
4651 /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */
4652 static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
4654 struct qla_tgt_sess_op *op;
4655 struct qla_tgt_cmd *cmd;
4658 unsigned long flags;
4660 key = (((u32)s_id->b.domain << 16) |
4661 ((u32)s_id->b.area << 8) |
4662 ((u32)s_id->b.al_pa));
4664 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4665 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
4666 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4668 if (op_key == key) {
4674 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
4675 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4676 if (op_key == key) {
4682 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
4683 uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
4684 if (cmd_key == key) {
4689 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4694 static int qlt_handle_login(struct scsi_qla_host *vha,
4695 struct imm_ntfy_from_isp *iocb)
4697 struct fc_port *sess = NULL, *conflict_sess = NULL;
4700 uint16_t loop_id, wd3_lo;
4702 struct qlt_plogi_ack_t *pla;
4703 unsigned long flags;
4705 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4707 port_id.b.domain = iocb->u.isp24.port_id[2];
4708 port_id.b.area = iocb->u.isp24.port_id[1];
4709 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4710 port_id.b.rsvd_1 = 0;
4712 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4714 /* Mark all stale commands sitting in qla_tgt_wq for deletion */
4715 abort_cmds_for_s_id(vha, &port_id);
4718 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
4719 sess = qlt_find_sess_invalidate_other(vha, wwn,
4720 port_id, loop_id, &conflict_sess);
4721 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
4723 ql_dbg(ql_dbg_disc, vha, 0xffff,
4724 "%s %d Term INOT due to WWN=0 lid=%d, NportID %06X ",
4725 __func__, __LINE__, loop_id, port_id.b24);
4726 qlt_send_term_imm_notif(vha, iocb, 1);
4730 if (IS_SW_RESV_ADDR(port_id)) {
4735 pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
4737 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
4738 "%s %d %8phC Term INOT due to mem alloc fail",
4740 iocb->u.isp24.port_name);
4741 qlt_send_term_imm_notif(vha, iocb, 1);
4745 if (conflict_sess) {
4746 conflict_sess->login_gen++;
4747 qlt_plogi_ack_link(vha, pla, conflict_sess,
4748 QLT_PLOGI_LINK_CONFLICT);
4753 ql_dbg(ql_dbg_disc, vha, 0xffff,
4754 "%s %d %8phC post new sess\n",
4755 __func__, __LINE__, iocb->u.isp24.port_name);
4756 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
4757 qla24xx_post_newsess_work(vha, &port_id,
4758 iocb->u.isp24.port_name,
4759 iocb->u.isp24.u.plogi.node_name,
4760 pla, FC4_TYPE_UNKNOWN);
4762 qla24xx_post_newsess_work(vha, &port_id,
4763 iocb->u.isp24.port_name, NULL,
4764 pla, FC4_TYPE_UNKNOWN);
4769 if (sess->disc_state == DSC_UPD_FCPORT) {
4773 * Remote port registration is still going on from
4774 * previous login. Allow it to finish before we
4775 * accept the new login.
4777 sess->next_disc_state = DSC_DELETE_PEND;
4778 sec = jiffies_to_msecs(jiffies -
4779 sess->jiffies_at_registration) / 1000;
4780 if (sess->sec_since_registration < sec && sec &&
4782 sess->sec_since_registration = sec;
4783 ql_dbg(ql_dbg_disc, vha, 0xffff,
4784 "%s %8phC - Slow Rport registration (%d Sec)\n",
4785 __func__, sess->port_name, sec);
4789 kmem_cache_free(qla_tgt_plogi_cachep, pla);
4791 qlt_send_term_imm_notif(vha, iocb, 1);
4795 qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
4796 sess->d_id = port_id;
4799 if (iocb->u.isp24.status_subcode == ELS_PRLI) {
4800 sess->fw_login_state = DSC_LS_PRLI_PEND;
4802 sess->loop_id = loop_id;
4803 sess->d_id = port_id;
4804 sess->fw_login_state = DSC_LS_PRLI_PEND;
4805 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4808 sess->conf_compl_supported = 1;
4810 if ((wd3_lo & BIT_4) == 0)
4811 sess->port_type = FCT_INITIATOR;
4813 sess->port_type = FCT_TARGET;
4816 sess->fw_login_state = DSC_LS_PLOGI_PEND;
4819 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4820 "%s %d %8phC DS %d\n",
4821 __func__, __LINE__, sess->port_name, sess->disc_state);
4823 switch (sess->disc_state) {
4825 case DSC_LOGIN_PEND:
4826 qlt_plogi_ack_unref(vha, pla);
4831 * Under normal circumstances we want to release nport handle
4832 * during LOGO process to avoid nport handle leaks inside FW.
4833 * The exception is when LOGO is done while another PLOGI with
4834 * the same nport handle is waiting as might be the case here.
4835 * Note: there is always a possibily of a race where session
4836 * deletion has already started for other reasons (e.g. ACL
4837 * removal) and now PLOGI arrives:
4838 * 1. if PLOGI arrived in FW after nport handle has been freed,
4839 * FW must have assigned this PLOGI a new/same handle and we
4840 * can proceed ACK'ing it as usual when session deletion
4842 * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
4843 * bit reached it, the handle has now been released. We'll
4844 * get an error when we ACK this PLOGI. Nothing will be sent
4845 * back to initiator. Initiator should eventually retry
4846 * PLOGI and situation will correct itself.
4848 sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
4849 (sess->d_id.b24 == port_id.b24));
4851 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4852 "%s %d %8phC post del sess\n",
4853 __func__, __LINE__, sess->port_name);
4856 qlt_schedule_sess_for_deletion(sess);
4864 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
4866 static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
4867 struct imm_ntfy_from_isp *iocb)
4869 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4870 struct qla_hw_data *ha = vha->hw;
4871 struct fc_port *sess = NULL, *conflict_sess = NULL;
4877 unsigned long flags;
4879 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4881 port_id.b.domain = iocb->u.isp24.port_id[2];
4882 port_id.b.area = iocb->u.isp24.port_id[1];
4883 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4884 port_id.b.rsvd_1 = 0;
4886 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4888 ql_dbg(ql_dbg_disc, vha, 0xf026,
4889 "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n",
4890 vha->vp_idx, iocb->u.isp24.port_id[2],
4891 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
4892 iocb->u.isp24.status_subcode, loop_id,
4893 iocb->u.isp24.port_name);
4895 /* res = 1 means ack at the end of thread
4896 * res = 0 means ack async/later.
4898 switch (iocb->u.isp24.status_subcode) {
4900 res = qlt_handle_login(vha, iocb);
4905 sess = qla2x00_find_fcport_by_wwpn(vha,
4906 iocb->u.isp24.port_name, 1);
4908 if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) {
4909 ql_dbg(ql_dbg_disc, vha, 0xffff,
4910 "%s %d %8phC Term PRLI due to PLOGI ACK not completed\n",
4912 iocb->u.isp24.port_name);
4913 qlt_send_term_imm_notif(vha, iocb, 1);
4917 res = qlt_handle_login(vha, iocb);
4921 if (IS_SW_RESV_ADDR(port_id)) {
4926 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4929 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
4930 sess = qlt_find_sess_invalidate_other(vha, wwn, port_id,
4931 loop_id, &conflict_sess);
4932 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
4935 if (conflict_sess) {
4936 switch (conflict_sess->disc_state) {
4938 case DSC_DELETE_PEND:
4941 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
4942 "PRLI with conflicting sess %p port %8phC\n",
4943 conflict_sess, conflict_sess->port_name);
4944 conflict_sess->fw_login_state =
4945 DSC_LS_PORT_UNAVAIL;
4946 qlt_send_term_imm_notif(vha, iocb, 1);
4953 bool delete = false;
4955 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
4956 switch (sess->fw_login_state) {
4957 case DSC_LS_PLOGI_PEND:
4958 case DSC_LS_PLOGI_COMP:
4959 case DSC_LS_PRLI_COMP:
4966 switch (sess->disc_state) {
4967 case DSC_UPD_FCPORT:
4968 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
4971 sec = jiffies_to_msecs(jiffies -
4972 sess->jiffies_at_registration)/1000;
4973 if (sess->sec_since_registration < sec && sec &&
4975 sess->sec_since_registration = sec;
4976 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
4977 "%s %8phC : Slow Rport registration(%d Sec)\n",
4978 __func__, sess->port_name, sec);
4980 qlt_send_term_imm_notif(vha, iocb, 1);
4983 case DSC_LOGIN_PEND:
4985 case DSC_LOGIN_COMPLETE:
4994 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
4997 * Impatient initiator sent PRLI before last
4998 * PLOGI could finish. Will force him to re-try,
4999 * while last one finishes.
5001 ql_log(ql_log_warn, sess->vha, 0xf095,
5002 "sess %p PRLI received, before plogi ack.\n",
5004 qlt_send_term_imm_notif(vha, iocb, 1);
5010 * This shouldn't happen under normal circumstances,
5011 * since we have deleted the old session during PLOGI
5013 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096,
5014 "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n",
5015 sess->loop_id, sess, iocb->u.isp24.nport_handle);
5018 sess->loop_id = loop_id;
5019 sess->d_id = port_id;
5020 sess->fw_login_state = DSC_LS_PRLI_PEND;
5023 sess->conf_compl_supported = 1;
5025 if ((wd3_lo & BIT_4) == 0)
5026 sess->port_type = FCT_INITIATOR;
5028 sess->port_type = FCT_TARGET;
5030 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
5032 res = 1; /* send notify ack */
5034 /* Make session global (not used in fabric mode) */
5035 if (ha->current_topology != ISP_CFG_F) {
5037 ql_dbg(ql_dbg_disc, vha, 0x20fa,
5038 "%s %d %8phC post nack\n",
5039 __func__, __LINE__, sess->port_name);
5040 qla24xx_post_nack_work(vha, sess, iocb,
5044 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5045 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5046 qla2xxx_wake_dpc(vha);
5050 ql_dbg(ql_dbg_disc, vha, 0x20fb,
5051 "%s %d %8phC post nack\n",
5052 __func__, __LINE__, sess->port_name);
5053 qla24xx_post_nack_work(vha, sess, iocb,
5061 if (le16_to_cpu(iocb->u.isp24.flags) &
5062 NOTIFY24XX_FLAGS_GLOBAL_TPRLO) {
5064 qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS);
5071 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5072 sess = qla2x00_find_fcport_by_loopid(vha, loop_id);
5073 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5077 sess->fw_login_state = DSC_LS_LOGO_PEND;
5078 sess->logo_ack_needed = 1;
5079 memcpy(sess->iocb, iocb, IOCB_SIZE);
5082 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5084 ql_dbg(ql_dbg_disc, vha, 0x20fc,
5085 "%s: logo %llx res %d sess %p ",
5086 __func__, wwn, res, sess);
5089 * cmd went upper layer, look for qlt_xmit_tm_rsp()
5090 * for LOGO_ACK & sess delete
5095 /* cmd did not go to upper layer. */
5097 qlt_schedule_sess_for_deletion(sess);
5100 /* else logo will be ack */
5106 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5107 if (tgt->link_reinit_iocb_pending) {
5108 qlt_send_notify_ack(ha->base_qpair,
5109 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5110 tgt->link_reinit_iocb_pending = 0;
5113 sess = qla2x00_find_fcport_by_wwpn(vha,
5114 iocb->u.isp24.port_name, 1);
5116 ql_dbg(ql_dbg_disc, vha, 0x20fd,
5117 "sess %p lid %d|%d DS %d LS %d\n",
5118 sess, sess->loop_id, loop_id,
5119 sess->disc_state, sess->fw_login_state);
5122 res = 1; /* send notify ack */
5126 case ELS_FLOGI: /* should never happen */
5128 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061,
5129 "qla_target(%d): Unsupported ELS command %x "
5130 "received\n", vha->vp_idx, iocb->u.isp24.status_subcode);
5131 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5135 ql_dbg(ql_dbg_disc, vha, 0xf026,
5136 "qla_target(%d): Exit ELS opcode: 0x%02x res %d\n",
5137 vha->vp_idx, iocb->u.isp24.status_subcode, res);
5143 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5145 static void qlt_handle_imm_notify(struct scsi_qla_host *vha,
5146 struct imm_ntfy_from_isp *iocb)
5148 struct qla_hw_data *ha = vha->hw;
5149 uint32_t add_flags = 0;
5150 int send_notify_ack = 1;
5153 status = le16_to_cpu(iocb->u.isp2x.status);
5155 case IMM_NTFY_LIP_RESET:
5157 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032,
5158 "qla_target(%d): LIP reset (loop %#x), subcode %x\n",
5159 vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle),
5160 iocb->u.isp24.status_subcode);
5162 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5163 send_notify_ack = 0;
5167 case IMM_NTFY_LIP_LINK_REINIT:
5169 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5170 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033,
5171 "qla_target(%d): LINK REINIT (loop %#x, "
5172 "subcode %x)\n", vha->vp_idx,
5173 le16_to_cpu(iocb->u.isp24.nport_handle),
5174 iocb->u.isp24.status_subcode);
5175 if (tgt->link_reinit_iocb_pending) {
5176 qlt_send_notify_ack(ha->base_qpair,
5177 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5179 memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb));
5180 tgt->link_reinit_iocb_pending = 1;
5182 * QLogic requires to wait after LINK REINIT for possible
5183 * PDISC or ADISC ELS commands
5185 send_notify_ack = 0;
5189 case IMM_NTFY_PORT_LOGOUT:
5190 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034,
5191 "qla_target(%d): Port logout (loop "
5192 "%#x, subcode %x)\n", vha->vp_idx,
5193 le16_to_cpu(iocb->u.isp24.nport_handle),
5194 iocb->u.isp24.status_subcode);
5196 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0)
5197 send_notify_ack = 0;
5198 /* The sessions will be cleared in the callback, if needed */
5201 case IMM_NTFY_GLBL_TPRLO:
5202 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035,
5203 "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status);
5204 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5205 send_notify_ack = 0;
5206 /* The sessions will be cleared in the callback, if needed */
5209 case IMM_NTFY_PORT_CONFIG:
5210 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036,
5211 "qla_target(%d): Port config changed (%x)\n", vha->vp_idx,
5213 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5214 send_notify_ack = 0;
5215 /* The sessions will be cleared in the callback, if needed */
5218 case IMM_NTFY_GLBL_LOGO:
5219 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
5220 "qla_target(%d): Link failure detected\n",
5222 /* I_T nexus loss */
5223 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5224 send_notify_ack = 0;
5227 case IMM_NTFY_IOCB_OVERFLOW:
5228 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b,
5229 "qla_target(%d): Cannot provide requested "
5230 "capability (IOCB overflowed the immediate notify "
5231 "resource count)\n", vha->vp_idx);
5234 case IMM_NTFY_ABORT_TASK:
5235 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037,
5236 "qla_target(%d): Abort Task (S %08x I %#x -> "
5237 "L %#x)\n", vha->vp_idx,
5238 le16_to_cpu(iocb->u.isp2x.seq_id),
5239 GET_TARGET_ID(ha, (struct atio_from_isp *)iocb),
5240 le16_to_cpu(iocb->u.isp2x.lun));
5241 if (qlt_abort_task(vha, iocb) == 0)
5242 send_notify_ack = 0;
5245 case IMM_NTFY_RESOURCE:
5246 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c,
5247 "qla_target(%d): Out of resources, host %ld\n",
5248 vha->vp_idx, vha->host_no);
5251 case IMM_NTFY_MSG_RX:
5252 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038,
5253 "qla_target(%d): Immediate notify task %x\n",
5254 vha->vp_idx, iocb->u.isp2x.task_flags);
5258 if (qlt_24xx_handle_els(vha, iocb) == 0)
5259 send_notify_ack = 0;
5262 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d,
5263 "qla_target(%d): Received unknown immediate "
5264 "notify status %x\n", vha->vp_idx, status);
5268 if (send_notify_ack)
5269 qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0,
5274 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5275 * This function sends busy to ISP 2xxx or 24xx.
5277 static int __qlt_send_busy(struct qla_qpair *qpair,
5278 struct atio_from_isp *atio, uint16_t status)
5280 struct scsi_qla_host *vha = qpair->vha;
5281 struct ctio7_to_24xx *ctio24;
5282 struct qla_hw_data *ha = vha->hw;
5284 struct fc_port *sess = NULL;
5285 unsigned long flags;
5289 id.b.al_pa = atio->u.isp24.fcp_hdr.s_id[2];
5290 id.b.area = atio->u.isp24.fcp_hdr.s_id[1];
5291 id.b.domain = atio->u.isp24.fcp_hdr.s_id[0];
5294 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5295 sess = qla2x00_find_fcport_by_nportid(vha, &id, 1);
5296 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5298 qlt_send_term_exchange(qpair, NULL, atio, 1, 0);
5301 /* Sending marker isn't necessary, since we called from ISR */
5303 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
5305 ql_dbg(ql_dbg_io, vha, 0x3063,
5306 "qla_target(%d): %s failed: unable to allocate "
5307 "request packet", vha->vp_idx, __func__);
5311 qpair->tgt_counters.num_q_full_sent++;
5312 pkt->entry_count = 1;
5313 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
5315 ctio24 = (struct ctio7_to_24xx *)pkt;
5316 ctio24->entry_type = CTIO_TYPE7;
5317 ctio24->nport_handle = sess->loop_id;
5318 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
5319 ctio24->vp_index = vha->vp_idx;
5320 ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2];
5321 ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1];
5322 ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0];
5323 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
5324 temp = (atio->u.isp24.attr << 9) |
5325 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
5326 CTIO7_FLAGS_DONT_RET_CTIO;
5327 ctio24->u.status1.flags = cpu_to_le16(temp);
5329 * CTIO from fw w/o se_cmd doesn't provide enough info to retry it,
5330 * if the explicit conformation is used.
5332 ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id);
5333 ctio24->u.status1.scsi_status = cpu_to_le16(status);
5335 ctio24->u.status1.residual = get_datalen_for_atio(atio);
5337 if (ctio24->u.status1.residual != 0)
5338 ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER;
5340 /* Memory Barrier */
5342 if (qpair->reqq_start_iocbs)
5343 qpair->reqq_start_iocbs(qpair);
5345 qla2x00_start_iocbs(vha, qpair->req);
5350 * This routine is used to allocate a command for either a QFull condition
5351 * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go
5355 qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
5356 struct atio_from_isp *atio, uint16_t status, int qfull)
5358 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5359 struct qla_hw_data *ha = vha->hw;
5360 struct fc_port *sess;
5361 struct se_session *se_sess;
5362 struct qla_tgt_cmd *cmd;
5364 unsigned long flags;
5366 if (unlikely(tgt->tgt_stop)) {
5367 ql_dbg(ql_dbg_io, vha, 0x300a,
5368 "New command while device %p is shutting down\n", tgt);
5372 if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) {
5373 vha->hw->tgt.num_qfull_cmds_dropped++;
5374 if (vha->hw->tgt.num_qfull_cmds_dropped >
5375 vha->qla_stats.stat_max_qfull_cmds_dropped)
5376 vha->qla_stats.stat_max_qfull_cmds_dropped =
5377 vha->hw->tgt.num_qfull_cmds_dropped;
5379 ql_dbg(ql_dbg_io, vha, 0x3068,
5380 "qla_target(%d): %s: QFull CMD dropped[%d]\n",
5381 vha->vp_idx, __func__,
5382 vha->hw->tgt.num_qfull_cmds_dropped);
5384 qlt_chk_exch_leak_thresh_hold(vha);
5388 sess = ha->tgt.tgt_ops->find_sess_by_s_id
5389 (vha, atio->u.isp24.fcp_hdr.s_id);
5393 se_sess = sess->se_sess;
5395 tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu);
5397 ql_dbg(ql_dbg_io, vha, 0x3009,
5398 "qla_target(%d): %s: Allocation of cmd failed\n",
5399 vha->vp_idx, __func__);
5401 vha->hw->tgt.num_qfull_cmds_dropped++;
5402 if (vha->hw->tgt.num_qfull_cmds_dropped >
5403 vha->qla_stats.stat_max_qfull_cmds_dropped)
5404 vha->qla_stats.stat_max_qfull_cmds_dropped =
5405 vha->hw->tgt.num_qfull_cmds_dropped;
5407 qlt_chk_exch_leak_thresh_hold(vha);
5411 cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag];
5412 memset(cmd, 0, sizeof(struct qla_tgt_cmd));
5414 qlt_incr_num_pend_cmds(vha);
5415 INIT_LIST_HEAD(&cmd->cmd_list);
5416 memcpy(&cmd->atio, atio, sizeof(*atio));
5418 cmd->tgt = vha->vha_tgt.qla_tgt;
5420 cmd->reset_count = ha->base_qpair->chip_reset;
5422 cmd->qpair = ha->base_qpair;
5423 cmd->se_cmd.map_cpu = cpu;
5427 /* NOTE: borrowing the state field to carry the status */
5428 cmd->state = status;
5430 cmd->term_exchg = 1;
5432 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5433 list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list);
5435 vha->hw->tgt.num_qfull_cmds_alloc++;
5436 if (vha->hw->tgt.num_qfull_cmds_alloc >
5437 vha->qla_stats.stat_max_qfull_cmds_alloc)
5438 vha->qla_stats.stat_max_qfull_cmds_alloc =
5439 vha->hw->tgt.num_qfull_cmds_alloc;
5440 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5444 qlt_free_qfull_cmds(struct qla_qpair *qpair)
5446 struct scsi_qla_host *vha = qpair->vha;
5447 struct qla_hw_data *ha = vha->hw;
5448 unsigned long flags;
5449 struct qla_tgt_cmd *cmd, *tcmd;
5450 struct list_head free_list, q_full_list;
5453 if (list_empty(&ha->tgt.q_full_list))
5456 INIT_LIST_HEAD(&free_list);
5457 INIT_LIST_HEAD(&q_full_list);
5459 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5460 if (list_empty(&ha->tgt.q_full_list)) {
5461 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5465 list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list);
5466 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5468 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
5469 list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) {
5471 /* cmd->state is a borrowed field to hold status */
5472 rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state);
5473 else if (cmd->term_exchg)
5474 rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio);
5480 ql_dbg(ql_dbg_io, vha, 0x3006,
5481 "%s: busy sent for ox_id[%04x]\n", __func__,
5482 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5483 else if (cmd->term_exchg)
5484 ql_dbg(ql_dbg_io, vha, 0x3007,
5485 "%s: Term exchg sent for ox_id[%04x]\n", __func__,
5486 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5488 ql_dbg(ql_dbg_io, vha, 0x3008,
5489 "%s: Unexpected cmd in QFull list %p\n", __func__,
5492 list_del(&cmd->cmd_list);
5493 list_add_tail(&cmd->cmd_list, &free_list);
5495 /* piggy back on hardware_lock for protection */
5496 vha->hw->tgt.num_qfull_cmds_alloc--;
5498 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
5502 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
5503 list_del(&cmd->cmd_list);
5504 /* This cmd was never sent to TCM. There is no need
5505 * to schedule free or call free_cmd
5510 if (!list_empty(&q_full_list)) {
5511 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5512 list_splice(&q_full_list, &vha->hw->tgt.q_full_list);
5513 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5520 qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio,
5524 struct scsi_qla_host *vha = qpair->vha;
5526 rc = __qlt_send_busy(qpair, atio, status);
5528 qlt_alloc_qfull_cmd(vha, atio, status, 1);
5532 qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
5533 struct atio_from_isp *atio, uint8_t ha_locked)
5535 struct qla_hw_data *ha = vha->hw;
5536 unsigned long flags;
5538 if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
5542 spin_lock_irqsave(&ha->hardware_lock, flags);
5543 qlt_send_busy(qpair, atio, qla_sam_status);
5545 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5550 /* ha->hardware_lock supposed to be held on entry */
5551 /* called via callback from qla2xxx */
5552 static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
5553 struct atio_from_isp *atio, uint8_t ha_locked)
5555 struct qla_hw_data *ha = vha->hw;
5556 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5558 unsigned long flags = 0;
5560 if (unlikely(tgt == NULL)) {
5561 ql_dbg(ql_dbg_tgt, vha, 0x3064,
5562 "ATIO pkt, but no tgt (ha %p)", ha);
5566 * In tgt_stop mode we also should allow all requests to pass.
5567 * Otherwise, some commands can stuck.
5570 tgt->atio_irq_cmd_count++;
5572 switch (atio->u.raw.entry_type) {
5574 if (unlikely(atio->u.isp24.exchange_addr ==
5575 ATIO_EXCHANGE_ADDRESS_UNKNOWN)) {
5576 ql_dbg(ql_dbg_io, vha, 0x3065,
5577 "qla_target(%d): ATIO_TYPE7 "
5578 "received with UNKNOWN exchange address, "
5579 "sending QUEUE_FULL\n", vha->vp_idx);
5581 spin_lock_irqsave(&ha->hardware_lock, flags);
5582 qlt_send_busy(ha->base_qpair, atio, qla_sam_status);
5584 spin_unlock_irqrestore(&ha->hardware_lock,
5589 if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) {
5590 rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair,
5593 tgt->atio_irq_cmd_count--;
5596 rc = qlt_handle_cmd_for_atio(vha, atio);
5598 rc = qlt_handle_task_mgmt(vha, atio);
5600 if (unlikely(rc != 0)) {
5602 spin_lock_irqsave(&ha->hardware_lock, flags);
5605 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5606 "qla_target: Unable to send command to target\n");
5609 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5610 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5611 qlt_send_term_exchange(ha->base_qpair, NULL,
5615 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5616 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5618 qlt_send_busy(ha->base_qpair, atio,
5622 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5623 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5625 qlt_send_busy(ha->base_qpair, atio,
5630 spin_unlock_irqrestore(&ha->hardware_lock,
5635 case IMMED_NOTIFY_TYPE:
5637 if (unlikely(atio->u.isp2x.entry_status != 0)) {
5638 ql_dbg(ql_dbg_tgt, vha, 0xe05b,
5639 "qla_target(%d): Received ATIO packet %x "
5640 "with error status %x\n", vha->vp_idx,
5641 atio->u.raw.entry_type,
5642 atio->u.isp2x.entry_status);
5645 ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
5648 spin_lock_irqsave(&ha->hardware_lock, flags);
5649 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio);
5651 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5656 ql_dbg(ql_dbg_tgt, vha, 0xe05c,
5657 "qla_target(%d): Received unknown ATIO atio "
5658 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
5662 tgt->atio_irq_cmd_count--;
5665 /* ha->hardware_lock supposed to be held on entry */
5666 /* called via callback from qla2xxx */
5667 static void qlt_response_pkt(struct scsi_qla_host *vha,
5668 struct rsp_que *rsp, response_t *pkt)
5670 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5672 if (unlikely(tgt == NULL)) {
5673 ql_dbg(ql_dbg_tgt, vha, 0xe05d,
5674 "qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
5675 vha->vp_idx, pkt->entry_type, vha->hw);
5680 * In tgt_stop mode we also should allow all requests to pass.
5681 * Otherwise, some commands can stuck.
5684 switch (pkt->entry_type) {
5688 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
5689 qlt_do_ctio_completion(vha, rsp, entry->handle,
5690 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5695 case ACCEPT_TGT_IO_TYPE:
5697 struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
5699 if (atio->u.isp2x.status !=
5700 cpu_to_le16(ATIO_CDB_VALID)) {
5701 ql_dbg(ql_dbg_tgt, vha, 0xe05e,
5702 "qla_target(%d): ATIO with error "
5703 "status %x received\n", vha->vp_idx,
5704 le16_to_cpu(atio->u.isp2x.status));
5708 rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1);
5712 rc = qlt_handle_cmd_for_atio(vha, atio);
5713 if (unlikely(rc != 0)) {
5716 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5717 "qla_target: Unable to send command to target\n");
5720 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5721 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5722 qlt_send_term_exchange(rsp->qpair, NULL,
5726 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5727 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5729 qlt_send_busy(rsp->qpair, atio,
5733 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5734 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5736 qlt_send_busy(rsp->qpair, atio,
5744 case CONTINUE_TGT_IO_TYPE:
5746 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5747 qlt_do_ctio_completion(vha, rsp, entry->handle,
5748 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5755 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5756 qlt_do_ctio_completion(vha, rsp, entry->handle,
5757 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5762 case IMMED_NOTIFY_TYPE:
5763 ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n");
5764 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt);
5767 case NOTIFY_ACK_TYPE:
5768 if (tgt->notify_ack_expected > 0) {
5769 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
5770 ql_dbg(ql_dbg_tgt, vha, 0xe036,
5771 "NOTIFY_ACK seq %08x status %x\n",
5772 le16_to_cpu(entry->u.isp2x.seq_id),
5773 le16_to_cpu(entry->u.isp2x.status));
5774 tgt->notify_ack_expected--;
5775 if (entry->u.isp2x.status !=
5776 cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
5777 ql_dbg(ql_dbg_tgt, vha, 0xe061,
5778 "qla_target(%d): NOTIFY_ACK "
5779 "failed %x\n", vha->vp_idx,
5780 le16_to_cpu(entry->u.isp2x.status));
5783 ql_dbg(ql_dbg_tgt, vha, 0xe062,
5784 "qla_target(%d): Unexpected NOTIFY_ACK received\n",
5789 case ABTS_RECV_24XX:
5790 ql_dbg(ql_dbg_tgt, vha, 0xe037,
5791 "ABTS_RECV_24XX: instance %d\n", vha->vp_idx);
5792 qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt);
5795 case ABTS_RESP_24XX:
5796 if (tgt->abts_resp_expected > 0) {
5797 struct abts_resp_from_24xx_fw *entry =
5798 (struct abts_resp_from_24xx_fw *)pkt;
5799 ql_dbg(ql_dbg_tgt, vha, 0xe038,
5800 "ABTS_RESP_24XX: compl_status %x\n",
5801 entry->compl_status);
5802 tgt->abts_resp_expected--;
5803 if (le16_to_cpu(entry->compl_status) !=
5804 ABTS_RESP_COMPL_SUCCESS) {
5805 if ((entry->error_subcode1 == 0x1E) &&
5806 (entry->error_subcode2 == 0)) {
5808 * We've got a race here: aborted
5809 * exchange not terminated, i.e.
5810 * response for the aborted command was
5811 * sent between the abort request was
5812 * received and processed.
5813 * Unfortunately, the firmware has a
5814 * silly requirement that all aborted
5815 * exchanges must be explicitely
5816 * terminated, otherwise it refuses to
5817 * send responses for the abort
5818 * requests. So, we have to
5819 * (re)terminate the exchange and retry
5820 * the abort response.
5822 qlt_24xx_retry_term_exchange(vha,
5825 ql_dbg(ql_dbg_tgt, vha, 0xe063,
5826 "qla_target(%d): ABTS_RESP_24XX "
5827 "failed %x (subcode %x:%x)",
5828 vha->vp_idx, entry->compl_status,
5829 entry->error_subcode1,
5830 entry->error_subcode2);
5833 ql_dbg(ql_dbg_tgt, vha, 0xe064,
5834 "qla_target(%d): Unexpected ABTS_RESP_24XX "
5835 "received\n", vha->vp_idx);
5840 ql_dbg(ql_dbg_tgt, vha, 0xe065,
5841 "qla_target(%d): Received unknown response pkt "
5842 "type %x\n", vha->vp_idx, pkt->entry_type);
5849 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5851 void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
5854 struct qla_hw_data *ha = vha->hw;
5855 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5858 if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
5861 if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
5865 * In tgt_stop mode we also should allow all requests to pass.
5866 * Otherwise, some commands can stuck.
5871 case MBA_RESET: /* Reset */
5872 case MBA_SYSTEM_ERR: /* System Error */
5873 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
5874 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
5875 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a,
5876 "qla_target(%d): System error async event %#x "
5877 "occurred", vha->vp_idx, code);
5879 case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */
5880 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
5885 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b,
5886 "qla_target(%d): Async LOOP_UP occurred "
5887 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx,
5888 le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
5889 le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
5890 if (tgt->link_reinit_iocb_pending) {
5891 qlt_send_notify_ack(ha->base_qpair,
5892 (void *)&tgt->link_reinit_iocb,
5894 tgt->link_reinit_iocb_pending = 0;
5899 case MBA_LIP_OCCURRED:
5902 case MBA_RSCN_UPDATE:
5903 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c,
5904 "qla_target(%d): Async event %#x occurred "
5905 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code,
5906 le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
5907 le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
5910 case MBA_REJECTED_FCP_CMD:
5911 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017,
5912 "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)",
5914 le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
5915 le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
5917 if (le16_to_cpu(mailbox[3]) == 1) {
5918 /* exchange starvation. */
5919 vha->hw->exch_starvation++;
5920 if (vha->hw->exch_starvation > 5) {
5921 ql_log(ql_log_warn, vha, 0xd03a,
5922 "Exchange starvation-. Resetting RISC\n");
5924 vha->hw->exch_starvation = 0;
5925 if (IS_P3P_TYPE(vha->hw))
5926 set_bit(FCOE_CTX_RESET_NEEDED,
5929 set_bit(ISP_ABORT_NEEDED,
5931 qla2xxx_wake_dpc(vha);
5936 case MBA_PORT_UPDATE:
5937 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d,
5938 "qla_target(%d): Port update async event %#x "
5939 "occurred: updating the ports database (m[0]=%x, m[1]=%x, "
5940 "m[2]=%x, m[3]=%x)", vha->vp_idx, code,
5941 le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]),
5942 le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3]));
5944 login_code = le16_to_cpu(mailbox[2]);
5945 if (login_code == 0x4) {
5946 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e,
5947 "Async MB 2: Got PLOGI Complete\n");
5948 vha->hw->exch_starvation = 0;
5949 } else if (login_code == 0x7)
5950 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f,
5951 "Async MB 2: Port Logged Out\n");
5959 static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
5962 fc_port_t *fcport, *tfcp, *del;
5964 unsigned long flags;
5967 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5969 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
5970 "qla_target(%d): Allocation of tmp FC port failed",
5975 fcport->loop_id = loop_id;
5977 rc = qla24xx_gpdb_wait(vha, fcport, 0);
5978 if (rc != QLA_SUCCESS) {
5979 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070,
5980 "qla_target(%d): Failed to retrieve fcport "
5981 "information -- get_port_database() returned %x "
5982 "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
5988 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5989 tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1);
5992 tfcp->d_id = fcport->d_id;
5993 tfcp->port_type = fcport->port_type;
5994 tfcp->supported_classes = fcport->supported_classes;
5995 tfcp->flags |= fcport->flags;
5996 tfcp->scan_state = QLA_FCPORT_FOUND;
6001 if (vha->hw->current_topology == ISP_CFG_F)
6002 fcport->flags |= FCF_FABRIC_DEVICE;
6004 list_add_tail(&fcport->list, &vha->vp_fcports);
6005 if (!IS_SW_RESV_ADDR(fcport->d_id))
6006 vha->fcport_count++;
6007 fcport->login_gen++;
6008 fcport->disc_state = DSC_LOGIN_COMPLETE;
6009 fcport->login_succ = 1;
6013 fcport->deleted = 0;
6014 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6016 switch (vha->host->active_mode) {
6017 case MODE_INITIATOR:
6020 if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) {
6021 qla24xx_sched_upd_fcport(fcport);
6023 ql_dbg(ql_dbg_disc, vha, 0x20ff,
6024 "%s %d %8phC post gpsc fcp_cnt %d\n",
6025 __func__, __LINE__, fcport->port_name, vha->fcport_count);
6026 qla24xx_post_gpsc_work(vha, fcport);
6036 qla2x00_free_fcport(del);
6041 /* Must be called under tgt_mutex */
6042 static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha,
6045 struct fc_port *sess = NULL;
6046 fc_port_t *fcport = NULL;
6047 int rc, global_resets;
6048 uint16_t loop_id = 0;
6050 if ((s_id[0] == 0xFF) && (s_id[1] == 0xFC)) {
6052 * This is Domain Controller, so it should be
6053 * OK to drop SCSI commands from it.
6055 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042,
6056 "Unable to find initiator with S_ID %x:%x:%x",
6057 s_id[0], s_id[1], s_id[2]);
6061 mutex_lock(&vha->vha_tgt.tgt_mutex);
6065 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
6067 rc = qla24xx_get_loop_id(vha, s_id, &loop_id);
6069 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6071 ql_log(ql_log_info, vha, 0xf071,
6072 "qla_target(%d): Unable to find "
6073 "initiator with S_ID %x:%x:%x",
6074 vha->vp_idx, s_id[0], s_id[1],
6077 if (rc == -ENOENT) {
6078 qlt_port_logo_t logo;
6079 sid_to_portid(s_id, &logo.id);
6081 qlt_send_first_logo(vha, &logo);
6087 fcport = qlt_get_port_database(vha, loop_id);
6089 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6093 if (global_resets !=
6094 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) {
6095 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043,
6096 "qla_target(%d): global reset during session discovery "
6097 "(counter was %d, new %d), retrying", vha->vp_idx,
6099 atomic_read(&vha->vha_tgt.
6100 qla_tgt->tgt_global_resets_count));
6104 sess = qlt_create_sess(vha, fcport, true);
6106 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6111 static void qlt_abort_work(struct qla_tgt *tgt,
6112 struct qla_tgt_sess_work_param *prm)
6114 struct scsi_qla_host *vha = tgt->vha;
6115 struct qla_hw_data *ha = vha->hw;
6116 struct fc_port *sess = NULL;
6117 unsigned long flags = 0, flags2 = 0;
6121 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6126 s_id[0] = prm->abts.fcp_hdr_le.s_id[2];
6127 s_id[1] = prm->abts.fcp_hdr_le.s_id[1];
6128 s_id[2] = prm->abts.fcp_hdr_le.s_id[0];
6130 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6132 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6134 sess = qlt_make_local_sess(vha, s_id);
6135 /* sess has got an extra creation ref */
6137 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6141 if (sess->deleted) {
6146 if (!kref_get_unless_zero(&sess->sess_kref)) {
6147 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c,
6148 "%s: kref_get fail %8phC \n",
6149 __func__, sess->port_name);
6155 rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
6156 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6158 ha->tgt.tgt_ops->put_sess(sess);
6165 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6168 ha->tgt.tgt_ops->put_sess(sess);
6171 spin_lock_irqsave(&ha->hardware_lock, flags);
6172 qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts,
6173 FCP_TMF_REJECTED, false);
6174 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6177 static void qlt_tmr_work(struct qla_tgt *tgt,
6178 struct qla_tgt_sess_work_param *prm)
6180 struct atio_from_isp *a = &prm->tm_iocb2;
6181 struct scsi_qla_host *vha = tgt->vha;
6182 struct qla_hw_data *ha = vha->hw;
6183 struct fc_port *sess = NULL;
6184 unsigned long flags;
6185 uint8_t *s_id = NULL; /* to hide compiler warnings */
6191 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6196 s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id;
6197 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6199 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6201 sess = qlt_make_local_sess(vha, s_id);
6202 /* sess has got an extra creation ref */
6204 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6208 if (sess->deleted) {
6213 if (!kref_get_unless_zero(&sess->sess_kref)) {
6214 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020,
6215 "%s: kref_get fail %8phC\n",
6216 __func__, sess->port_name);
6223 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
6225 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
6227 rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
6228 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6230 ha->tgt.tgt_ops->put_sess(sess);
6238 ha->tgt.tgt_ops->put_sess(sess);
6239 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6241 qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0);
6244 static void qlt_sess_work_fn(struct work_struct *work)
6246 struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
6247 struct scsi_qla_host *vha = tgt->vha;
6248 unsigned long flags;
6250 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt);
6252 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6253 while (!list_empty(&tgt->sess_works_list)) {
6254 struct qla_tgt_sess_work_param *prm = list_entry(
6255 tgt->sess_works_list.next, typeof(*prm),
6256 sess_works_list_entry);
6259 * This work can be scheduled on several CPUs at time, so we
6260 * must delete the entry to eliminate double processing
6262 list_del(&prm->sess_works_list_entry);
6264 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6266 switch (prm->type) {
6267 case QLA_TGT_SESS_WORK_ABORT:
6268 qlt_abort_work(tgt, prm);
6270 case QLA_TGT_SESS_WORK_TM:
6271 qlt_tmr_work(tgt, prm);
6278 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6282 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6285 /* Must be called under tgt_host_action_mutex */
6286 int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
6288 struct qla_tgt *tgt;
6290 struct qla_qpair_hint *h;
6292 if (!QLA_TGT_MODE_ENABLED())
6295 if (!IS_TGT_MODE_CAPABLE(ha)) {
6296 ql_log(ql_log_warn, base_vha, 0xe070,
6297 "This adapter does not support target mode.\n");
6301 ql_dbg(ql_dbg_tgt, base_vha, 0xe03b,
6302 "Registering target for host %ld(%p).\n", base_vha->host_no, ha);
6304 BUG_ON(base_vha->vha_tgt.qla_tgt != NULL);
6306 tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL);
6308 ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
6309 "Unable to allocate struct qla_tgt\n");
6313 tgt->qphints = kcalloc(ha->max_qpairs + 1,
6314 sizeof(struct qla_qpair_hint),
6316 if (!tgt->qphints) {
6318 ql_log(ql_log_warn, base_vha, 0x0197,
6319 "Unable to allocate qpair hints.\n");
6323 if (!(base_vha->host->hostt->supported_mode & MODE_TARGET))
6324 base_vha->host->hostt->supported_mode |= MODE_TARGET;
6326 rc = btree_init64(&tgt->lun_qpair_map);
6328 kfree(tgt->qphints);
6330 ql_log(ql_log_info, base_vha, 0x0198,
6331 "Unable to initialize lun_qpair_map btree\n");
6334 h = &tgt->qphints[0];
6335 h->qpair = ha->base_qpair;
6336 INIT_LIST_HEAD(&h->hint_elem);
6337 h->cpuid = ha->base_qpair->cpuid;
6338 list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list);
6340 for (i = 0; i < ha->max_qpairs; i++) {
6341 unsigned long flags;
6343 struct qla_qpair *qpair = ha->queue_pair_map[i];
6344 h = &tgt->qphints[i + 1];
6345 INIT_LIST_HEAD(&h->hint_elem);
6348 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
6349 list_add_tail(&h->hint_elem, &qpair->hints_list);
6350 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
6351 h->cpuid = qpair->cpuid;
6356 tgt->vha = base_vha;
6357 init_waitqueue_head(&tgt->waitQ);
6358 INIT_LIST_HEAD(&tgt->del_sess_list);
6359 spin_lock_init(&tgt->sess_work_lock);
6360 INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
6361 INIT_LIST_HEAD(&tgt->sess_works_list);
6362 atomic_set(&tgt->tgt_global_resets_count, 0);
6364 base_vha->vha_tgt.qla_tgt = tgt;
6366 ql_dbg(ql_dbg_tgt, base_vha, 0xe067,
6367 "qla_target(%d): using 64 Bit PCI addressing",
6370 tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3);
6372 mutex_lock(&qla_tgt_mutex);
6373 list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist);
6374 mutex_unlock(&qla_tgt_mutex);
6376 if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target)
6377 ha->tgt.tgt_ops->add_target(base_vha);
6382 /* Must be called under tgt_host_action_mutex */
6383 int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
6385 if (!vha->vha_tgt.qla_tgt)
6388 if (vha->fc_vport) {
6389 qlt_release(vha->vha_tgt.qla_tgt);
6393 /* free left over qfull cmds */
6394 qlt_init_term_exchange(vha);
6396 ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
6398 qlt_release(vha->vha_tgt.qla_tgt);
6403 void qlt_remove_target_resources(struct qla_hw_data *ha)
6405 struct scsi_qla_host *node;
6408 btree_for_each_safe32(&ha->tgt.host_map, key, node)
6409 btree_remove32(&ha->tgt.host_map, key);
6411 btree_destroy32(&ha->tgt.host_map);
6414 static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn,
6419 pr_debug("qla2xxx HW vha->node_name: ");
6420 for (i = 0; i < WWN_SIZE; i++)
6421 pr_debug("%02x ", vha->node_name[i]);
6423 pr_debug("qla2xxx HW vha->port_name: ");
6424 for (i = 0; i < WWN_SIZE; i++)
6425 pr_debug("%02x ", vha->port_name[i]);
6428 pr_debug("qla2xxx passed configfs WWPN: ");
6429 put_unaligned_be64(wwpn, b);
6430 for (i = 0; i < WWN_SIZE; i++)
6431 pr_debug("%02x ", b[i]);
6436 * qla_tgt_lport_register - register lport with external module
6438 * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data
6442 * @callback: lport initialization callback for tcm_qla2xxx code
6444 int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn,
6445 u64 npiv_wwpn, u64 npiv_wwnn,
6446 int (*callback)(struct scsi_qla_host *, void *, u64, u64))
6448 struct qla_tgt *tgt;
6449 struct scsi_qla_host *vha;
6450 struct qla_hw_data *ha;
6451 struct Scsi_Host *host;
6452 unsigned long flags;
6456 mutex_lock(&qla_tgt_mutex);
6457 list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) {
6465 if (!(host->hostt->supported_mode & MODE_TARGET))
6468 spin_lock_irqsave(&ha->hardware_lock, flags);
6469 if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) {
6470 pr_debug("MODE_TARGET already active on qla2xxx(%d)\n",
6472 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6475 if (tgt->tgt_stop) {
6476 pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n",
6478 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6481 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6483 if (!scsi_host_get(host)) {
6484 ql_dbg(ql_dbg_tgt, vha, 0xe068,
6485 "Unable to scsi_host_get() for"
6486 " qla2xxx scsi_host\n");
6489 qlt_lport_dump(vha, phys_wwpn, b);
6491 if (memcmp(vha->port_name, b, WWN_SIZE)) {
6492 scsi_host_put(host);
6495 rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn);
6497 scsi_host_put(host);
6499 mutex_unlock(&qla_tgt_mutex);
6502 mutex_unlock(&qla_tgt_mutex);
6506 EXPORT_SYMBOL(qlt_lport_register);
6509 * qla_tgt_lport_deregister - Degister lport
6511 * @vha: Registered scsi_qla_host pointer
6513 void qlt_lport_deregister(struct scsi_qla_host *vha)
6515 struct qla_hw_data *ha = vha->hw;
6516 struct Scsi_Host *sh = vha->host;
6518 * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data
6520 vha->vha_tgt.target_lport_ptr = NULL;
6521 ha->tgt.tgt_ops = NULL;
6523 * Release the Scsi_Host reference for the underlying qla2xxx host
6527 EXPORT_SYMBOL(qlt_lport_deregister);
6529 /* Must be called under HW lock */
6530 static void qlt_set_mode(struct scsi_qla_host *vha)
6532 switch (ql2x_ini_mode) {
6533 case QLA2XXX_INI_MODE_DISABLED:
6534 case QLA2XXX_INI_MODE_EXCLUSIVE:
6535 vha->host->active_mode = MODE_TARGET;
6537 case QLA2XXX_INI_MODE_ENABLED:
6538 vha->host->active_mode = MODE_UNKNOWN;
6540 case QLA2XXX_INI_MODE_DUAL:
6541 vha->host->active_mode = MODE_DUAL;
6548 /* Must be called under HW lock */
6549 static void qlt_clear_mode(struct scsi_qla_host *vha)
6551 switch (ql2x_ini_mode) {
6552 case QLA2XXX_INI_MODE_DISABLED:
6553 vha->host->active_mode = MODE_UNKNOWN;
6555 case QLA2XXX_INI_MODE_EXCLUSIVE:
6556 vha->host->active_mode = MODE_INITIATOR;
6558 case QLA2XXX_INI_MODE_ENABLED:
6559 case QLA2XXX_INI_MODE_DUAL:
6560 vha->host->active_mode = MODE_INITIATOR;
6568 * qla_tgt_enable_vha - NO LOCK HELD
6570 * host_reset, bring up w/ Target Mode Enabled
6573 qlt_enable_vha(struct scsi_qla_host *vha)
6575 struct qla_hw_data *ha = vha->hw;
6576 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6577 unsigned long flags;
6578 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6581 ql_dbg(ql_dbg_tgt, vha, 0xe069,
6582 "Unable to locate qla_tgt pointer from"
6583 " struct qla_hw_data\n");
6588 spin_lock_irqsave(&ha->hardware_lock, flags);
6589 tgt->tgt_stopped = 0;
6591 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6594 qla24xx_disable_vp(vha);
6595 qla24xx_enable_vp(vha);
6597 set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
6598 qla2xxx_wake_dpc(base_vha);
6599 WARN_ON_ONCE(qla2x00_wait_for_hba_online(base_vha) !=
6603 EXPORT_SYMBOL(qlt_enable_vha);
6606 * qla_tgt_disable_vha - NO LOCK HELD
6608 * Disable Target Mode and reset the adapter
6610 static void qlt_disable_vha(struct scsi_qla_host *vha)
6612 struct qla_hw_data *ha = vha->hw;
6613 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6614 unsigned long flags;
6617 ql_dbg(ql_dbg_tgt, vha, 0xe06a,
6618 "Unable to locate qla_tgt pointer from"
6619 " struct qla_hw_data\n");
6624 spin_lock_irqsave(&ha->hardware_lock, flags);
6625 qlt_clear_mode(vha);
6626 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6628 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6629 qla2xxx_wake_dpc(vha);
6630 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
6631 ql_dbg(ql_dbg_tgt, vha, 0xe081,
6632 "qla2x00_wait_for_hba_online() failed\n");
6636 * Called from qla_init.c:qla24xx_vport_create() contex to setup
6637 * the target mode specific struct scsi_qla_host and struct qla_hw_data
6641 qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
6643 vha->vha_tgt.qla_tgt = NULL;
6645 mutex_init(&vha->vha_tgt.tgt_mutex);
6646 mutex_init(&vha->vha_tgt.tgt_host_action_mutex);
6648 qlt_clear_mode(vha);
6651 * NOTE: Currently the value is kept the same for <24xx and
6652 * >=24xx ISPs. If it is necessary to change it,
6653 * the check should be added for specific ISPs,
6654 * assigning the value appropriately.
6656 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
6658 qlt_add_target(ha, vha);
6662 qlt_rff_id(struct scsi_qla_host *vha)
6666 * FC-4 Feature bit 0 indicates target functionality to the name server.
6668 if (qla_tgt_mode_enabled(vha)) {
6669 fc4_feature = BIT_0;
6670 } else if (qla_ini_mode_enabled(vha)) {
6671 fc4_feature = BIT_1;
6672 } else if (qla_dual_mode_enabled(vha))
6673 fc4_feature = BIT_0 | BIT_1;
6679 * qlt_init_atio_q_entries() - Initializes ATIO queue entries.
6682 * Beginning of ATIO ring has initialization control block already built
6683 * by nvram config routine.
6685 * Returns 0 on success.
6688 qlt_init_atio_q_entries(struct scsi_qla_host *vha)
6690 struct qla_hw_data *ha = vha->hw;
6692 struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring;
6694 if (qla_ini_mode_enabled(vha))
6697 for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) {
6698 pkt->u.raw.signature = ATIO_PROCESSED;
6705 * qlt_24xx_process_atio_queue() - Process ATIO queue entries.
6706 * @ha: SCSI driver HA context
6709 qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked)
6711 struct qla_hw_data *ha = vha->hw;
6712 struct atio_from_isp *pkt;
6715 if (!ha->flags.fw_started)
6718 while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
6719 fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
6720 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6721 cnt = pkt->u.raw.entry_count;
6723 if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
6725 * This packet is corrupted. The header + payload
6726 * can not be trusted. There is no point in passing
6729 ql_log(ql_log_warn, vha, 0xd03c,
6730 "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
6731 pkt->u.isp24.fcp_hdr.s_id,
6732 be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
6733 le32_to_cpu(pkt->u.isp24.exchange_addr), pkt);
6735 adjust_corrupted_atio(pkt);
6736 qlt_send_term_exchange(ha->base_qpair, NULL, pkt,
6739 qlt_24xx_atio_pkt_all_vps(vha,
6740 (struct atio_from_isp *)pkt, ha_locked);
6743 for (i = 0; i < cnt; i++) {
6744 ha->tgt.atio_ring_index++;
6745 if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) {
6746 ha->tgt.atio_ring_index = 0;
6747 ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
6749 ha->tgt.atio_ring_ptr++;
6751 pkt->u.raw.signature = ATIO_PROCESSED;
6752 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6757 /* Adjust ring index */
6758 WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index);
6762 qlt_24xx_config_rings(struct scsi_qla_host *vha)
6764 struct qla_hw_data *ha = vha->hw;
6765 struct qla_msix_entry *msix = &ha->msix_entries[2];
6766 struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb;
6768 if (!QLA_TGT_MODE_ENABLED())
6771 WRT_REG_DWORD(ISP_ATIO_Q_IN(vha), 0);
6772 WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), 0);
6773 RD_REG_DWORD(ISP_ATIO_Q_OUT(vha));
6775 if (ha->flags.msix_enabled) {
6776 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
6777 if (IS_QLA2071(ha)) {
6778 /* 4 ports Baker: Enable Interrupt Handshake */
6780 icb->firmware_options_2 |= BIT_26;
6782 icb->msix_atio = cpu_to_le16(msix->entry);
6783 icb->firmware_options_2 &= ~BIT_26;
6785 ql_dbg(ql_dbg_init, vha, 0xf072,
6786 "Registering ICB vector 0x%x for atio que.\n",
6791 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
6793 icb->firmware_options_2 |= BIT_26;
6794 ql_dbg(ql_dbg_init, vha, 0xf072,
6795 "%s: Use INTx for ATIOQ.\n", __func__);
6801 qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
6803 struct qla_hw_data *ha = vha->hw;
6806 if (!QLA_TGT_MODE_ENABLED())
6809 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6810 if (!ha->tgt.saved_set) {
6811 /* We save only once */
6812 ha->tgt.saved_exchange_count = nv->exchange_count;
6813 ha->tgt.saved_firmware_options_1 =
6814 nv->firmware_options_1;
6815 ha->tgt.saved_firmware_options_2 =
6816 nv->firmware_options_2;
6817 ha->tgt.saved_firmware_options_3 =
6818 nv->firmware_options_3;
6819 ha->tgt.saved_set = 1;
6822 if (qla_tgt_mode_enabled(vha))
6823 nv->exchange_count = cpu_to_le16(0xFFFF);
6825 nv->exchange_count = cpu_to_le16(ql2xexchoffld);
6827 /* Enable target mode */
6828 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
6830 /* Disable ini mode, if requested */
6831 if (qla_tgt_mode_enabled(vha))
6832 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
6834 /* Disable Full Login after LIP */
6835 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6836 /* Enable initial LIP */
6837 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
6838 if (ql2xtgt_tape_enable)
6839 /* Enable FC Tape support */
6840 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
6842 /* Disable FC Tape support */
6843 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
6845 /* Disable Full Login after LIP */
6846 nv->host_p &= cpu_to_le32(~BIT_10);
6849 * clear BIT 15 explicitly as we have seen at least
6850 * a couple of instances where this was set and this
6851 * was causing the firmware to not be initialized.
6853 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
6854 /* Enable target PRLI control */
6855 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
6857 if (IS_QLA25XX(ha)) {
6858 /* Change Loop-prefer to Pt-Pt */
6859 tmp = ~(BIT_4|BIT_5|BIT_6);
6860 nv->firmware_options_2 &= cpu_to_le32(tmp);
6862 nv->firmware_options_2 |= cpu_to_le32(tmp);
6865 if (ha->tgt.saved_set) {
6866 nv->exchange_count = ha->tgt.saved_exchange_count;
6867 nv->firmware_options_1 =
6868 ha->tgt.saved_firmware_options_1;
6869 nv->firmware_options_2 =
6870 ha->tgt.saved_firmware_options_2;
6871 nv->firmware_options_3 =
6872 ha->tgt.saved_firmware_options_3;
6877 if (ha->base_qpair->enable_class_2) {
6878 if (vha->flags.init_done)
6879 fc_host_supported_classes(vha->host) =
6880 FC_COS_CLASS2 | FC_COS_CLASS3;
6882 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
6884 if (vha->flags.init_done)
6885 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
6887 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
6892 qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha,
6893 struct init_cb_24xx *icb)
6895 struct qla_hw_data *ha = vha->hw;
6897 if (!QLA_TGT_MODE_ENABLED())
6900 if (ha->tgt.node_name_set) {
6901 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
6902 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
6905 /* disable ZIO at start time. */
6906 if (!vha->flags.init_done) {
6908 tmp = le32_to_cpu(icb->firmware_options_2);
6909 tmp &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
6910 icb->firmware_options_2 = cpu_to_le32(tmp);
6915 qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
6917 struct qla_hw_data *ha = vha->hw;
6920 if (!QLA_TGT_MODE_ENABLED())
6923 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6924 if (!ha->tgt.saved_set) {
6925 /* We save only once */
6926 ha->tgt.saved_exchange_count = nv->exchange_count;
6927 ha->tgt.saved_firmware_options_1 =
6928 nv->firmware_options_1;
6929 ha->tgt.saved_firmware_options_2 =
6930 nv->firmware_options_2;
6931 ha->tgt.saved_firmware_options_3 =
6932 nv->firmware_options_3;
6933 ha->tgt.saved_set = 1;
6936 if (qla_tgt_mode_enabled(vha))
6937 nv->exchange_count = cpu_to_le16(0xFFFF);
6939 nv->exchange_count = cpu_to_le16(ql2xexchoffld);
6941 /* Enable target mode */
6942 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
6944 /* Disable ini mode, if requested */
6945 if (qla_tgt_mode_enabled(vha))
6946 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
6947 /* Disable Full Login after LIP */
6948 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6949 /* Enable initial LIP */
6950 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
6952 * clear BIT 15 explicitly as we have seen at
6953 * least a couple of instances where this was set
6954 * and this was causing the firmware to not be
6957 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
6958 if (ql2xtgt_tape_enable)
6959 /* Enable FC tape support */
6960 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
6962 /* Disable FC tape support */
6963 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
6965 /* Disable Full Login after LIP */
6966 nv->host_p &= cpu_to_le32(~BIT_10);
6967 /* Enable target PRLI control */
6968 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
6970 /* Change Loop-prefer to Pt-Pt */
6971 tmp = ~(BIT_4|BIT_5|BIT_6);
6972 nv->firmware_options_2 &= cpu_to_le32(tmp);
6974 nv->firmware_options_2 |= cpu_to_le32(tmp);
6976 if (ha->tgt.saved_set) {
6977 nv->exchange_count = ha->tgt.saved_exchange_count;
6978 nv->firmware_options_1 =
6979 ha->tgt.saved_firmware_options_1;
6980 nv->firmware_options_2 =
6981 ha->tgt.saved_firmware_options_2;
6982 nv->firmware_options_3 =
6983 ha->tgt.saved_firmware_options_3;
6988 if (ha->base_qpair->enable_class_2) {
6989 if (vha->flags.init_done)
6990 fc_host_supported_classes(vha->host) =
6991 FC_COS_CLASS2 | FC_COS_CLASS3;
6993 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
6995 if (vha->flags.init_done)
6996 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
6998 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
7003 qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha,
7004 struct init_cb_81xx *icb)
7006 struct qla_hw_data *ha = vha->hw;
7008 if (!QLA_TGT_MODE_ENABLED())
7011 if (ha->tgt.node_name_set) {
7012 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
7013 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
7016 /* disable ZIO at start time. */
7017 if (!vha->flags.init_done) {
7019 tmp = le32_to_cpu(icb->firmware_options_2);
7020 tmp &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
7021 icb->firmware_options_2 = cpu_to_le32(tmp);
7027 qlt_83xx_iospace_config(struct qla_hw_data *ha)
7029 if (!QLA_TGT_MODE_ENABLED())
7032 ha->msix_count += 1; /* For ATIO Q */
7037 qlt_modify_vp_config(struct scsi_qla_host *vha,
7038 struct vp_config_entry_24xx *vpmod)
7040 /* enable target mode. Bit5 = 1 => disable */
7041 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
7042 vpmod->options_idx1 &= ~BIT_5;
7044 /* Disable ini mode, if requested. bit4 = 1 => disable */
7045 if (qla_tgt_mode_enabled(vha))
7046 vpmod->options_idx1 &= ~BIT_4;
7050 qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha)
7054 if (!QLA_TGT_MODE_ENABLED())
7057 if ((ql2xenablemsix == 0) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
7058 ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in;
7059 ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out;
7061 ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in;
7062 ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out;
7065 mutex_init(&base_vha->vha_tgt.tgt_mutex);
7066 mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex);
7068 INIT_LIST_HEAD(&base_vha->unknown_atio_list);
7069 INIT_DELAYED_WORK(&base_vha->unknown_atio_work,
7070 qlt_unknown_atio_work_fn);
7072 qlt_clear_mode(base_vha);
7074 rc = btree_init32(&ha->tgt.host_map);
7076 ql_log(ql_log_info, base_vha, 0xd03d,
7077 "Unable to initialize ha->host_map btree\n");
7079 qlt_update_vp_map(base_vha, SET_VP_IDX);
7083 qla83xx_msix_atio_q(int irq, void *dev_id)
7085 struct rsp_que *rsp;
7086 scsi_qla_host_t *vha;
7087 struct qla_hw_data *ha;
7088 unsigned long flags;
7090 rsp = (struct rsp_que *) dev_id;
7092 vha = pci_get_drvdata(ha->pdev);
7094 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7096 qlt_24xx_process_atio_queue(vha, 0);
7098 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7104 qlt_handle_abts_recv_work(struct work_struct *work)
7106 struct qla_tgt_sess_op *op = container_of(work,
7107 struct qla_tgt_sess_op, work);
7108 scsi_qla_host_t *vha = op->vha;
7109 struct qla_hw_data *ha = vha->hw;
7110 unsigned long flags;
7112 if (qla2x00_reset_active(vha) ||
7113 (op->chip_reset != ha->base_qpair->chip_reset))
7116 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7117 qlt_24xx_process_atio_queue(vha, 0);
7118 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7120 spin_lock_irqsave(&ha->hardware_lock, flags);
7121 qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio);
7122 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7128 qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp,
7131 struct qla_tgt_sess_op *op;
7133 op = kzalloc(sizeof(*op), GFP_ATOMIC);
7136 /* do not reach for ATIO queue here. This is best effort err
7137 * recovery at this point.
7139 qlt_response_pkt_all_vps(vha, rsp, pkt);
7143 memcpy(&op->atio, pkt, sizeof(*pkt));
7145 op->chip_reset = vha->hw->base_qpair->chip_reset;
7147 INIT_WORK(&op->work, qlt_handle_abts_recv_work);
7148 queue_work(qla_tgt_wq, &op->work);
7153 qlt_mem_alloc(struct qla_hw_data *ha)
7155 if (!QLA_TGT_MODE_ENABLED())
7158 ha->tgt.tgt_vp_map = kcalloc(MAX_MULTI_ID_FABRIC,
7159 sizeof(struct qla_tgt_vp_map),
7161 if (!ha->tgt.tgt_vp_map)
7164 ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev,
7165 (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp),
7166 &ha->tgt.atio_dma, GFP_KERNEL);
7167 if (!ha->tgt.atio_ring) {
7168 kfree(ha->tgt.tgt_vp_map);
7175 qlt_mem_free(struct qla_hw_data *ha)
7177 if (!QLA_TGT_MODE_ENABLED())
7180 if (ha->tgt.atio_ring) {
7181 dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) *
7182 sizeof(struct atio_from_isp), ha->tgt.atio_ring,
7185 kfree(ha->tgt.tgt_vp_map);
7188 /* vport_slock to be held by the caller */
7190 qlt_update_vp_map(struct scsi_qla_host *vha, int cmd)
7196 if (!QLA_TGT_MODE_ENABLED())
7199 key = vha->d_id.b24;
7203 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha;
7206 slot = btree_lookup32(&vha->hw->tgt.host_map, key);
7208 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018,
7209 "Save vha in host_map %p %06x\n", vha, key);
7210 rc = btree_insert32(&vha->hw->tgt.host_map,
7211 key, vha, GFP_ATOMIC);
7213 ql_log(ql_log_info, vha, 0xd03e,
7214 "Unable to insert s_id into host_map: %06x\n",
7218 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019,
7219 "replace existing vha in host_map %p %06x\n", vha, key);
7220 btree_update32(&vha->hw->tgt.host_map, key, vha);
7223 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL;
7226 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a,
7227 "clear vha in host_map %p %06x\n", vha, key);
7228 slot = btree_lookup32(&vha->hw->tgt.host_map, key);
7230 btree_remove32(&vha->hw->tgt.host_map, key);
7236 void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id)
7239 if (!vha->d_id.b24) {
7241 qlt_update_vp_map(vha, SET_AL_PA);
7242 } else if (vha->d_id.b24 != id.b24) {
7243 qlt_update_vp_map(vha, RESET_AL_PA);
7245 qlt_update_vp_map(vha, SET_AL_PA);
7249 static int __init qlt_parse_ini_mode(void)
7251 if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0)
7252 ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
7253 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0)
7254 ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED;
7255 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0)
7256 ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED;
7257 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0)
7258 ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL;
7265 int __init qlt_init(void)
7269 if (!qlt_parse_ini_mode()) {
7270 ql_log(ql_log_fatal, NULL, 0xe06b,
7271 "qlt_parse_ini_mode() failed\n");
7275 if (!QLA_TGT_MODE_ENABLED())
7278 qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep",
7279 sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct
7280 qla_tgt_mgmt_cmd), 0, NULL);
7281 if (!qla_tgt_mgmt_cmd_cachep) {
7282 ql_log(ql_log_fatal, NULL, 0xd04b,
7283 "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
7287 qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep",
7288 sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t),
7291 if (!qla_tgt_plogi_cachep) {
7292 ql_log(ql_log_fatal, NULL, 0xe06d,
7293 "kmem_cache_create for qla_tgt_plogi_cachep failed\n");
7295 goto out_mgmt_cmd_cachep;
7298 qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab,
7299 mempool_free_slab, qla_tgt_mgmt_cmd_cachep);
7300 if (!qla_tgt_mgmt_cmd_mempool) {
7301 ql_log(ql_log_fatal, NULL, 0xe06e,
7302 "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
7304 goto out_plogi_cachep;
7307 qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0);
7309 ql_log(ql_log_fatal, NULL, 0xe06f,
7310 "alloc_workqueue for qla_tgt_wq failed\n");
7312 goto out_cmd_mempool;
7315 * Return 1 to signal that initiator-mode is being disabled
7317 return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0;
7320 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7322 kmem_cache_destroy(qla_tgt_plogi_cachep);
7323 out_mgmt_cmd_cachep:
7324 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
7330 if (!QLA_TGT_MODE_ENABLED())
7333 destroy_workqueue(qla_tgt_wq);
7334 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7335 kmem_cache_destroy(qla_tgt_plogi_cachep);
7336 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);