1 // SPDX-License-Identifier: GPL-2.0-only
3 * qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx
5 * based on qla2x00t.c code:
7 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
8 * Copyright (C) 2004 - 2005 Leonid Stoljar
9 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
10 * Copyright (C) 2006 - 2010 ID7 Ltd.
12 * Forward port and refactoring to modern qla2xxx and target/configfs
14 * Copyright (C) 2010-2013 Nicholas A. Bellinger <nab@kernel.org>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/types.h>
20 #include <linux/blkdev.h>
21 #include <linux/interrupt.h>
22 #include <linux/pci.h>
23 #include <linux/delay.h>
24 #include <linux/list.h>
25 #include <linux/workqueue.h>
26 #include <asm/unaligned.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_tcq.h>
32 #include "qla_target.h"
34 static int ql2xtgt_tape_enable;
35 module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR);
36 MODULE_PARM_DESC(ql2xtgt_tape_enable,
37 "Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
39 static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
40 module_param(qlini_mode, charp, S_IRUGO);
41 MODULE_PARM_DESC(qlini_mode,
42 "Determines when initiator mode will be enabled. Possible values: "
43 "\"exclusive\" - initiator mode will be enabled on load, "
44 "disabled on enabling target mode and then on disabling target mode "
46 "\"disabled\" - initiator mode will never be enabled; "
47 "\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
49 "\"enabled\" (default) - initiator mode will always stay enabled.");
51 static int ql_dm_tgt_ex_pct = 0;
52 module_param(ql_dm_tgt_ex_pct, int, S_IRUGO|S_IWUSR);
53 MODULE_PARM_DESC(ql_dm_tgt_ex_pct,
54 "For Dual Mode (qlini_mode=dual), this parameter determines "
55 "the percentage of exchanges/cmds FW will allocate resources "
59 module_param(ql2xuctrlirq, int, 0644);
60 MODULE_PARM_DESC(ql2xuctrlirq,
61 "User to control IRQ placement via smp_affinity."
62 "Valid with qlini_mode=disabled."
63 "1(default): enable");
65 int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
67 static int qla_sam_status = SAM_STAT_BUSY;
68 static int tc_sam_status = SAM_STAT_TASK_SET_FULL; /* target core */
71 * From scsi/fc/fc_fcp.h
73 enum fcp_resp_rsp_codes {
75 FCP_DATA_LEN_INVALID = 1,
76 FCP_CMND_FIELDS_INVALID = 2,
77 FCP_DATA_PARAM_MISMATCH = 3,
80 FCP_TMF_INVALID_LUN = 9,
84 * fc_pri_ta from scsi/fc/fc_fcp.h
86 #define FCP_PTA_SIMPLE 0 /* simple task attribute */
87 #define FCP_PTA_HEADQ 1 /* head of queue task attribute */
88 #define FCP_PTA_ORDERED 2 /* ordered task attribute */
89 #define FCP_PTA_ACA 4 /* auto. contingent allegiance */
90 #define FCP_PTA_MASK 7 /* mask for task attribute field */
91 #define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */
92 #define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */
95 * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which
96 * must be called under HW lock and could unlock/lock it inside.
97 * It isn't an issue, since in the current implementation on the time when
98 * those functions are called:
100 * - Either context is IRQ and only IRQ handler can modify HW data,
101 * including rings related fields,
103 * - Or access to target mode variables from struct qla_tgt doesn't
104 * cross those functions boundaries, except tgt_stop, which
105 * additionally protected by irq_cmd_count.
107 /* Predefs for callbacks handed to qla2xxx LLD */
108 static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
109 struct atio_from_isp *pkt, uint8_t);
110 static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp,
112 static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
113 int fn, void *iocb, int flags);
114 static void qlt_send_term_exchange(struct qla_qpair *, struct qla_tgt_cmd
115 *cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort);
116 static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
117 struct atio_from_isp *atio, uint16_t status, int qfull);
118 static void qlt_disable_vha(struct scsi_qla_host *vha);
119 static void qlt_clear_tgt_db(struct qla_tgt *tgt);
120 static void qlt_send_notify_ack(struct qla_qpair *qpair,
121 struct imm_ntfy_from_isp *ntfy,
122 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
123 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan);
124 static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
125 struct imm_ntfy_from_isp *imm, int ha_locked);
126 static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
127 fc_port_t *fcport, bool local);
128 void qlt_unreg_sess(struct fc_port *sess);
129 static void qlt_24xx_handle_abts(struct scsi_qla_host *,
130 struct abts_recv_from_24xx *);
131 static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *,
133 static int qlt_check_reserve_free_req(struct qla_qpair *qpair, uint32_t);
134 static inline uint32_t qlt_make_handle(struct qla_qpair *);
139 static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
140 struct kmem_cache *qla_tgt_plogi_cachep;
141 static mempool_t *qla_tgt_mgmt_cmd_mempool;
142 static struct workqueue_struct *qla_tgt_wq;
143 static DEFINE_MUTEX(qla_tgt_mutex);
144 static LIST_HEAD(qla_tgt_glist);
146 static const char *prot_op_str(u32 prot_op)
149 case TARGET_PROT_NORMAL: return "NORMAL";
150 case TARGET_PROT_DIN_INSERT: return "DIN_INSERT";
151 case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT";
152 case TARGET_PROT_DIN_STRIP: return "DIN_STRIP";
153 case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP";
154 case TARGET_PROT_DIN_PASS: return "DIN_PASS";
155 case TARGET_PROT_DOUT_PASS: return "DOUT_PASS";
156 default: return "UNKNOWN";
160 /* This API intentionally takes dest as a parameter, rather than returning
161 * int value to avoid caller forgetting to issue wmb() after the store */
162 void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
164 scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
165 *dest = atomic_inc_return(&base_vha->generation_tick);
170 /* Might release hw lock, then reaquire!! */
171 static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
173 /* Send marker if required */
174 if (unlikely(vha->marker_needed != 0)) {
175 int rc = qla2x00_issue_marker(vha, vha_locked);
177 if (rc != QLA_SUCCESS) {
178 ql_dbg(ql_dbg_tgt, vha, 0xe03d,
179 "qla_target(%d): issue_marker() failed\n",
187 struct scsi_qla_host *qla_find_host_by_d_id(struct scsi_qla_host *vha,
190 struct scsi_qla_host *host;
193 if (vha->d_id.b.area == d_id.area &&
194 vha->d_id.b.domain == d_id.domain &&
195 vha->d_id.b.al_pa == d_id.al_pa)
198 key = be_to_port_id(d_id).b24;
200 host = btree_lookup32(&vha->hw->host_map, key);
202 ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
203 "Unable to find host %06x\n", key);
209 struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha,
212 struct qla_hw_data *ha = vha->hw;
214 if (vha->vp_idx == vp_idx)
217 BUG_ON(ha->tgt.tgt_vp_map == NULL);
218 if (likely(test_bit(vp_idx, ha->vp_idx_map)))
219 return ha->tgt.tgt_vp_map[vp_idx].vha;
224 static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha)
228 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
230 vha->hw->tgt.num_pend_cmds++;
231 if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds)
232 vha->qla_stats.stat_max_pend_cmds =
233 vha->hw->tgt.num_pend_cmds;
234 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
236 static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha)
240 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
241 vha->hw->tgt.num_pend_cmds--;
242 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
246 static void qlt_queue_unknown_atio(scsi_qla_host_t *vha,
247 struct atio_from_isp *atio, uint8_t ha_locked)
249 struct qla_tgt_sess_op *u;
250 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
254 ql_dbg(ql_dbg_async, vha, 0x502c,
255 "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
260 u = kzalloc(sizeof(*u), GFP_ATOMIC);
265 memcpy(&u->atio, atio, sizeof(*atio));
266 INIT_LIST_HEAD(&u->cmd_list);
268 spin_lock_irqsave(&vha->cmd_list_lock, flags);
269 list_add_tail(&u->cmd_list, &vha->unknown_atio_list);
270 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
272 schedule_delayed_work(&vha->unknown_atio_work, 1);
278 qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0);
282 static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
285 struct qla_tgt_sess_op *u, *t;
286 scsi_qla_host_t *host;
287 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
291 list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) {
293 ql_dbg(ql_dbg_async, vha, 0x502e,
294 "Freeing unknown %s %p, because of Abort\n",
296 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
297 &u->atio, ha_locked, 0);
301 host = qla_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
303 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f,
304 "Requeuing unknown ATIO_TYPE7 %p\n", u);
305 qlt_24xx_atio_pkt(host, &u->atio, ha_locked);
306 } else if (tgt->tgt_stop) {
307 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a,
308 "Freeing unknown %s %p, because tgt is being stopped\n",
310 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
311 &u->atio, ha_locked, 0);
313 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
314 "Reschedule u %p, vha %p, host %p\n", u, vha, host);
317 schedule_delayed_work(&vha->unknown_atio_work,
324 spin_lock_irqsave(&vha->cmd_list_lock, flags);
325 list_del(&u->cmd_list);
326 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
331 void qlt_unknown_atio_work_fn(struct work_struct *work)
333 struct scsi_qla_host *vha = container_of(to_delayed_work(work),
334 struct scsi_qla_host, unknown_atio_work);
336 qlt_try_to_dequeue_unknown_atios(vha, 0);
339 static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
340 struct atio_from_isp *atio, uint8_t ha_locked)
342 ql_dbg(ql_dbg_tgt, vha, 0xe072,
343 "%s: qla_target(%d): type %x ox_id %04x\n",
344 __func__, vha->vp_idx, atio->u.raw.entry_type,
345 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
347 switch (atio->u.raw.entry_type) {
350 struct scsi_qla_host *host = qla_find_host_by_d_id(vha,
351 atio->u.isp24.fcp_hdr.d_id);
352 if (unlikely(NULL == host)) {
353 ql_dbg(ql_dbg_tgt, vha, 0xe03e,
354 "qla_target(%d): Received ATIO_TYPE7 "
355 "with unknown d_id %x:%x:%x\n", vha->vp_idx,
356 atio->u.isp24.fcp_hdr.d_id.domain,
357 atio->u.isp24.fcp_hdr.d_id.area,
358 atio->u.isp24.fcp_hdr.d_id.al_pa);
361 qlt_queue_unknown_atio(vha, atio, ha_locked);
364 if (unlikely(!list_empty(&vha->unknown_atio_list)))
365 qlt_try_to_dequeue_unknown_atios(vha, ha_locked);
367 qlt_24xx_atio_pkt(host, atio, ha_locked);
371 case IMMED_NOTIFY_TYPE:
373 struct scsi_qla_host *host = vha;
374 struct imm_ntfy_from_isp *entry =
375 (struct imm_ntfy_from_isp *)atio;
377 qlt_issue_marker(vha, ha_locked);
379 if ((entry->u.isp24.vp_index != 0xFF) &&
380 (entry->u.isp24.nport_handle != cpu_to_le16(0xFFFF))) {
381 host = qlt_find_host_by_vp_idx(vha,
382 entry->u.isp24.vp_index);
383 if (unlikely(!host)) {
384 ql_dbg(ql_dbg_tgt, vha, 0xe03f,
385 "qla_target(%d): Received "
386 "ATIO (IMMED_NOTIFY_TYPE) "
387 "with unknown vp_index %d\n",
388 vha->vp_idx, entry->u.isp24.vp_index);
392 qlt_24xx_atio_pkt(host, atio, ha_locked);
396 case VP_RPT_ID_IOCB_TYPE:
397 qla24xx_report_id_acquisition(vha,
398 (struct vp_rpt_id_entry_24xx *)atio);
403 struct abts_recv_from_24xx *entry =
404 (struct abts_recv_from_24xx *)atio;
405 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
409 if (unlikely(!host)) {
410 ql_dbg(ql_dbg_tgt, vha, 0xe00a,
411 "qla_target(%d): Response pkt (ABTS_RECV_24XX) "
412 "received, with unknown vp_index %d\n",
413 vha->vp_idx, entry->vp_index);
417 spin_lock_irqsave(&host->hw->hardware_lock, flags);
418 qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio);
420 spin_unlock_irqrestore(&host->hw->hardware_lock, flags);
424 /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */
427 ql_dbg(ql_dbg_tgt, vha, 0xe040,
428 "qla_target(%d): Received unknown ATIO atio "
429 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
436 void qlt_response_pkt_all_vps(struct scsi_qla_host *vha,
437 struct rsp_que *rsp, response_t *pkt)
439 switch (pkt->entry_type) {
441 ql_dbg(ql_dbg_tgt, vha, 0xe073,
442 "qla_target(%d):%s: CRC2 Response pkt\n",
443 vha->vp_idx, __func__);
447 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
448 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
450 if (unlikely(!host)) {
451 ql_dbg(ql_dbg_tgt, vha, 0xe041,
452 "qla_target(%d): Response pkt (CTIO_TYPE7) "
453 "received, with unknown vp_index %d\n",
454 vha->vp_idx, entry->vp_index);
457 qlt_response_pkt(host, rsp, pkt);
461 case IMMED_NOTIFY_TYPE:
463 struct scsi_qla_host *host;
464 struct imm_ntfy_from_isp *entry =
465 (struct imm_ntfy_from_isp *)pkt;
467 host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index);
468 if (unlikely(!host)) {
469 ql_dbg(ql_dbg_tgt, vha, 0xe042,
470 "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) "
471 "received, with unknown vp_index %d\n",
472 vha->vp_idx, entry->u.isp24.vp_index);
475 qlt_response_pkt(host, rsp, pkt);
479 case NOTIFY_ACK_TYPE:
481 struct scsi_qla_host *host = vha;
482 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
484 if (0xFF != entry->u.isp24.vp_index) {
485 host = qlt_find_host_by_vp_idx(vha,
486 entry->u.isp24.vp_index);
487 if (unlikely(!host)) {
488 ql_dbg(ql_dbg_tgt, vha, 0xe043,
489 "qla_target(%d): Response "
490 "pkt (NOTIFY_ACK_TYPE) "
491 "received, with unknown "
492 "vp_index %d\n", vha->vp_idx,
493 entry->u.isp24.vp_index);
497 qlt_response_pkt(host, rsp, pkt);
503 struct abts_recv_from_24xx *entry =
504 (struct abts_recv_from_24xx *)pkt;
505 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
507 if (unlikely(!host)) {
508 ql_dbg(ql_dbg_tgt, vha, 0xe044,
509 "qla_target(%d): Response pkt "
510 "(ABTS_RECV_24XX) received, with unknown "
511 "vp_index %d\n", vha->vp_idx, entry->vp_index);
514 qlt_response_pkt(host, rsp, pkt);
520 struct abts_resp_to_24xx *entry =
521 (struct abts_resp_to_24xx *)pkt;
522 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
524 if (unlikely(!host)) {
525 ql_dbg(ql_dbg_tgt, vha, 0xe045,
526 "qla_target(%d): Response pkt "
527 "(ABTS_RECV_24XX) received, with unknown "
528 "vp_index %d\n", vha->vp_idx, entry->vp_index);
531 qlt_response_pkt(host, rsp, pkt);
535 qlt_response_pkt(vha, rsp, pkt);
542 * All qlt_plogi_ack_t operations are protected by hardware_lock
544 static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport,
545 struct imm_ntfy_from_isp *ntfy, int type)
547 struct qla_work_evt *e;
549 e = qla2x00_alloc_work(vha, QLA_EVT_NACK);
551 return QLA_FUNCTION_FAILED;
553 e->u.nack.fcport = fcport;
554 e->u.nack.type = type;
555 memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp));
556 return qla2x00_post_work(vha, e);
559 static void qla2x00_async_nack_sp_done(srb_t *sp, int res)
561 struct scsi_qla_host *vha = sp->vha;
564 ql_dbg(ql_dbg_disc, vha, 0x20f2,
565 "Async done-%s res %x %8phC type %d\n",
566 sp->name, res, sp->fcport->port_name, sp->type);
568 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
569 sp->fcport->flags &= ~FCF_ASYNC_SENT;
570 sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
574 sp->fcport->login_gen++;
575 sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
576 sp->fcport->logout_on_delete = 1;
577 sp->fcport->plogi_nack_done_deadline = jiffies + HZ;
578 sp->fcport->send_els_logo = 0;
580 if (sp->fcport->flags & FCF_FCSP_DEVICE) {
581 ql_dbg(ql_dbg_edif, vha, 0x20ef,
582 "%s %8phC edif: PLOGI- AUTH WAIT\n", __func__,
583 sp->fcport->port_name);
584 qla2x00_set_fcport_disc_state(sp->fcport,
585 DSC_LOGIN_AUTH_PEND);
586 qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
587 sp->fcport->d_id.b24);
588 qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_NEEDED, sp->fcport->d_id.b24,
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 qla2x00_set_fcport_disc_state(sp->fcport,
610 sp->fcport->deleted = 0;
611 sp->fcport->logout_on_delete = 1;
616 sp->fcport->login_gen++;
617 sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
618 qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE);
621 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
626 int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport,
627 struct imm_ntfy_from_isp *ntfy, int type)
629 int rval = QLA_FUNCTION_FAILED;
633 fcport->flags |= FCF_ASYNC_SENT;
636 fcport->fw_login_state = DSC_LS_PLOGI_PEND;
638 if (vha->hw->flags.edif_enabled &&
639 (le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP))
640 fcport->flags |= FCF_FCSP_DEVICE;
643 fcport->fw_login_state = DSC_LS_PRLI_PEND;
648 fcport->fw_login_state = DSC_LS_LOGO_PEND;
653 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
660 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
661 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
663 sp->u.iocb_cmd.u.nack.ntfy = ntfy;
664 sp->done = qla2x00_async_nack_sp_done;
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);
670 rval = qla2x00_start_sp(sp);
671 if (rval != QLA_SUCCESS)
679 fcport->flags &= ~FCF_ASYNC_SENT;
683 void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
687 switch (e->u.nack.type) {
689 t = e->u.nack.fcport;
690 flush_work(&t->del_work);
691 flush_work(&t->free_work);
692 mutex_lock(&vha->vha_tgt.tgt_mutex);
693 t = qlt_create_sess(vha, e->u.nack.fcport, 0);
694 mutex_unlock(&vha->vha_tgt.tgt_mutex);
696 ql_log(ql_log_info, vha, 0xd034,
697 "%s create sess success %p", __func__, t);
698 /* create sess has an extra kref */
699 vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport);
703 qla24xx_async_notify_ack(vha, e->u.nack.fcport,
704 (struct imm_ntfy_from_isp *)e->u.nack.iocb, e->u.nack.type);
707 void qla24xx_delete_sess_fn(struct work_struct *work)
709 fc_port_t *fcport = container_of(work, struct fc_port, del_work);
710 struct qla_hw_data *ha = NULL;
712 if (!fcport || !fcport->vha || !fcport->vha->hw)
715 ha = fcport->vha->hw;
717 if (fcport->se_sess) {
718 ha->tgt.tgt_ops->shutdown_sess(fcport);
719 ha->tgt.tgt_ops->put_sess(fcport);
721 qlt_unreg_sess(fcport);
726 * Called from qla2x00_reg_remote_port()
728 void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
730 struct qla_hw_data *ha = vha->hw;
731 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
732 struct fc_port *sess = fcport;
735 if (!vha->hw->tgt.tgt_ops)
738 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
740 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
744 if (fcport->disc_state == DSC_DELETE_PEND) {
745 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
749 if (!sess->se_sess) {
750 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
752 mutex_lock(&vha->vha_tgt.tgt_mutex);
753 sess = qlt_create_sess(vha, fcport, false);
754 mutex_unlock(&vha->vha_tgt.tgt_mutex);
756 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
758 if (fcport->fw_login_state == DSC_LS_PRLI_COMP) {
759 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
763 if (!kref_get_unless_zero(&sess->sess_kref)) {
764 ql_dbg(ql_dbg_disc, vha, 0x2107,
765 "%s: kref_get fail sess %8phC \n",
766 __func__, sess->port_name);
767 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
771 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c,
772 "qla_target(%u): %ssession for port %8phC "
773 "(loop ID %d) reappeared\n", vha->vp_idx,
774 sess->local ? "local " : "", sess->port_name, sess->loop_id);
776 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007,
777 "Reappeared sess %p\n", sess);
779 ha->tgt.tgt_ops->update_sess(sess, fcport->d_id,
781 (fcport->flags & FCF_CONF_COMP_SUPPORTED));
784 if (sess && sess->local) {
785 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d,
786 "qla_target(%u): local session for "
787 "port %8phC (loop ID %d) became global\n", vha->vp_idx,
788 fcport->port_name, sess->loop_id);
791 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
793 ha->tgt.tgt_ops->put_sess(sess);
797 * This is a zero-base ref-counting solution, since hardware_lock
798 * guarantees that ref_count is not modified concurrently.
799 * Upon successful return content of iocb is undefined
801 static struct qlt_plogi_ack_t *
802 qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
803 struct imm_ntfy_from_isp *iocb)
805 struct qlt_plogi_ack_t *pla;
807 lockdep_assert_held(&vha->hw->hardware_lock);
809 list_for_each_entry(pla, &vha->plogi_ack_list, list) {
810 if (pla->id.b24 == id->b24) {
811 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x210d,
812 "%s %d %8phC Term INOT due to new INOT",
814 pla->iocb.u.isp24.port_name);
815 qlt_send_term_imm_notif(vha, &pla->iocb, 1);
816 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
821 pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC);
823 ql_dbg(ql_dbg_async, vha, 0x5088,
824 "qla_target(%d): Allocation of plogi_ack failed\n",
829 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
831 list_add_tail(&pla->list, &vha->plogi_ack_list);
836 void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
837 struct qlt_plogi_ack_t *pla)
839 struct imm_ntfy_from_isp *iocb = &pla->iocb;
842 fc_port_t *fcport = pla->fcport;
844 BUG_ON(!pla->ref_count);
850 ql_dbg(ql_dbg_disc, vha, 0x5089,
851 "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x"
852 " exch %#x ox_id %#x\n", iocb->u.isp24.port_name,
853 iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1],
854 iocb->u.isp24.port_id[0],
855 le16_to_cpu(iocb->u.isp24.nport_handle),
856 iocb->u.isp24.exchange_address, iocb->ox_id);
858 port_id.b.domain = iocb->u.isp24.port_id[2];
859 port_id.b.area = iocb->u.isp24.port_id[1];
860 port_id.b.al_pa = iocb->u.isp24.port_id[0];
861 port_id.b.rsvd_1 = 0;
863 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
865 fcport->loop_id = loop_id;
866 fcport->d_id = port_id;
867 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
868 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI);
870 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI);
872 list_for_each_entry(fcport, &vha->vp_fcports, list) {
873 if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla)
874 fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
875 if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla)
876 fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
879 list_del(&pla->list);
880 kmem_cache_free(qla_tgt_plogi_cachep, pla);
884 qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla,
885 struct fc_port *sess, enum qlt_plogi_link_t link)
887 struct imm_ntfy_from_isp *iocb = &pla->iocb;
888 /* Inc ref_count first because link might already be pointing at pla */
891 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097,
892 "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC"
893 " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n",
894 sess, link, sess->port_name,
895 iocb->u.isp24.port_name, iocb->u.isp24.port_id[2],
896 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
897 pla->ref_count, pla, link);
899 if (link == QLT_PLOGI_LINK_CONFLICT) {
900 switch (sess->disc_state) {
902 case DSC_DELETE_PEND:
910 if (sess->plogi_link[link])
911 qlt_plogi_ack_unref(vha, sess->plogi_link[link]);
913 if (link == QLT_PLOGI_LINK_SAME_WWN)
916 sess->plogi_link[link] = pla;
920 /* These fields must be initialized by the caller */
923 * number of cmds dropped while we were waiting for
924 * initiator to ack LOGO initialize to 1 if LOGO is
925 * triggered by a command, otherwise, to 0
929 /* These fields are used by callee */
930 struct list_head list;
934 qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
936 qlt_port_logo_t *tmp;
939 if (test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags)) {
944 mutex_lock(&vha->vha_tgt.tgt_mutex);
946 list_for_each_entry(tmp, &vha->logo_list, list) {
947 if (tmp->id.b24 == logo->id.b24) {
948 tmp->cmd_count += logo->cmd_count;
949 mutex_unlock(&vha->vha_tgt.tgt_mutex);
954 list_add_tail(&logo->list, &vha->logo_list);
956 mutex_unlock(&vha->vha_tgt.tgt_mutex);
958 res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id);
960 mutex_lock(&vha->vha_tgt.tgt_mutex);
961 list_del(&logo->list);
962 mutex_unlock(&vha->vha_tgt.tgt_mutex);
965 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098,
966 "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n",
967 logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa,
968 logo->cmd_count, res);
971 void qlt_free_session_done(struct work_struct *work)
973 struct fc_port *sess = container_of(work, struct fc_port,
975 struct qla_tgt *tgt = sess->tgt;
976 struct scsi_qla_host *vha = sess->vha;
977 struct qla_hw_data *ha = vha->hw;
979 bool logout_started = false;
980 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
981 struct qlt_plogi_ack_t *own =
982 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
984 ql_dbg(ql_dbg_disc, vha, 0xf084,
985 "%s: se_sess %p / sess %p from port %8phC loop_id %#04x"
986 " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n",
987 __func__, sess->se_sess, sess, sess->port_name, sess->loop_id,
988 sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa,
989 sess->logout_on_delete, sess->keep_nport_handle,
990 sess->send_els_logo);
992 if (!IS_SW_RESV_ADDR(sess->d_id)) {
993 if (ha->flags.edif_enabled &&
994 (!own || own->iocb.u.isp24.status_subcode == ELS_PLOGI)) {
995 sess->edif.authok = 0;
996 if (!ha->flags.host_shutting_down) {
997 ql_dbg(ql_dbg_edif, vha, 0x911e,
998 "%s wwpn %8phC calling qla2x00_release_all_sadb\n",
999 __func__, sess->port_name);
1000 qla2x00_release_all_sadb(vha, sess);
1002 ql_dbg(ql_dbg_edif, vha, 0x911e,
1003 "%s bypassing release_all_sadb\n",
1006 qla_edif_clear_appdata(vha, sess);
1007 qla_edif_sess_down(vha, sess);
1009 qla2x00_mark_device_lost(vha, sess, 0);
1011 if (sess->send_els_logo) {
1012 qlt_port_logo_t logo;
1014 logo.id = sess->d_id;
1016 INIT_LIST_HEAD(&logo.list);
1018 qlt_send_first_logo(vha, &logo);
1019 sess->send_els_logo = 0;
1022 if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
1026 (own->iocb.u.isp24.status_subcode == ELS_PLOGI)) {
1027 sess->logout_completed = 0;
1028 rc = qla2x00_post_async_logout_work(vha, sess,
1030 if (rc != QLA_SUCCESS)
1031 ql_log(ql_log_warn, vha, 0xf085,
1032 "Schedule logo failed sess %p rc %d\n",
1035 logout_started = true;
1036 } else if (own && (own->iocb.u.isp24.status_subcode ==
1037 ELS_PRLI) && ha->flags.rida_fmt2) {
1038 rc = qla2x00_post_async_prlo_work(vha, sess,
1040 if (rc != QLA_SUCCESS)
1041 ql_log(ql_log_warn, vha, 0xf085,
1042 "Schedule PRLO failed sess %p rc %d\n",
1045 logout_started = true;
1047 } /* if sess->logout_on_delete */
1049 if (sess->nvme_flag & NVME_FLAG_REGISTERED &&
1050 !(sess->nvme_flag & NVME_FLAG_DELETING)) {
1051 sess->nvme_flag |= NVME_FLAG_DELETING;
1052 qla_nvme_unregister_remote_port(sess);
1057 * Release the target session for FC Nexus from fabric module code.
1059 if (sess->se_sess != NULL)
1060 ha->tgt.tgt_ops->free_session(sess);
1062 if (logout_started) {
1063 bool traced = false;
1066 while (!READ_ONCE(sess->logout_completed)) {
1068 ql_dbg(ql_dbg_disc, vha, 0xf086,
1069 "%s: waiting for sess %p logout\n",
1076 * Driver timeout is set to 22 Sec, update count value to loop
1077 * long enough for log-out to complete before advancing. Otherwise,
1078 * straddling logout can interfere with re-login attempt.
1084 ql_dbg(ql_dbg_disc, vha, 0xf087,
1085 "%s: sess %p logout completed\n", __func__, sess);
1088 if (sess->logo_ack_needed) {
1089 sess->logo_ack_needed = 0;
1090 qla24xx_async_notify_ack(vha, sess,
1091 (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO);
1094 spin_lock_irqsave(&vha->work_lock, flags);
1095 sess->flags &= ~FCF_ASYNC_SENT;
1096 spin_unlock_irqrestore(&vha->work_lock, flags);
1098 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1099 if (sess->se_sess) {
1100 sess->se_sess = NULL;
1101 if (tgt && !IS_SW_RESV_ADDR(sess->d_id))
1105 qla2x00_set_fcport_disc_state(sess, DSC_DELETED);
1106 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1107 sess->deleted = QLA_SESS_DELETED;
1109 if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) {
1110 vha->fcport_count--;
1111 sess->login_succ = 0;
1114 qla2x00_clear_loop_id(sess);
1116 if (sess->conflict) {
1117 sess->conflict->login_pause = 0;
1118 sess->conflict = NULL;
1119 if (!test_bit(UNLOADING, &vha->dpc_flags))
1120 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1124 struct qlt_plogi_ack_t *con =
1125 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
1126 struct imm_ntfy_from_isp *iocb;
1128 own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
1132 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099,
1133 "se_sess %p / sess %p port %8phC is gone,"
1134 " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
1135 sess->se_sess, sess, sess->port_name,
1136 own ? "releasing own PLOGI" : "no own PLOGI pending",
1137 own ? own->ref_count : -1,
1138 iocb->u.isp24.port_name, con->ref_count);
1139 qlt_plogi_ack_unref(vha, con);
1140 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
1142 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a,
1143 "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n",
1144 sess->se_sess, sess, sess->port_name,
1145 own ? "releasing own PLOGI" :
1146 "no own PLOGI pending",
1147 own ? own->ref_count : -1);
1151 sess->fw_login_state = DSC_LS_PLOGI_PEND;
1152 qlt_plogi_ack_unref(vha, own);
1153 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
1157 sess->explicit_logout = 0;
1158 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1159 sess->free_pending = 0;
1161 qla2x00_dfs_remove_rport(vha, sess);
1163 ql_dbg(ql_dbg_disc, vha, 0xf001,
1164 "Unregistration of sess %p %8phC finished fcp_cnt %d\n",
1165 sess, sess->port_name, vha->fcport_count);
1167 if (tgt && (tgt->sess_count == 0))
1168 wake_up_all(&tgt->waitQ);
1170 if (!test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags) &&
1171 !(vha->vp_idx && test_bit(VPORT_DELETE, &vha->dpc_flags)) &&
1172 (!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) {
1173 switch (vha->host->active_mode) {
1174 case MODE_INITIATOR:
1176 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1177 qla2xxx_wake_dpc(vha);
1186 if (vha->fcport_count == 0)
1187 wake_up_all(&vha->fcport_waitQ);
1190 /* ha->tgt.sess_lock supposed to be held on entry */
1191 void qlt_unreg_sess(struct fc_port *sess)
1193 struct scsi_qla_host *vha = sess->vha;
1194 unsigned long flags;
1196 ql_dbg(ql_dbg_disc, sess->vha, 0x210a,
1197 "%s sess %p for deletion %8phC\n",
1198 __func__, sess, sess->port_name);
1200 spin_lock_irqsave(&sess->vha->work_lock, flags);
1201 if (sess->free_pending) {
1202 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1205 sess->free_pending = 1;
1207 * Use FCF_ASYNC_SENT flag to block other cmds used in sess
1208 * management from being sent.
1210 sess->flags |= FCF_ASYNC_SENT;
1211 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1214 vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
1216 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1217 qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
1218 sess->last_rscn_gen = sess->rscn_gen;
1219 sess->last_login_gen = sess->login_gen;
1221 queue_work(sess->vha->hw->wq, &sess->free_work);
1223 EXPORT_SYMBOL(qlt_unreg_sess);
1225 static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
1227 struct qla_hw_data *ha = vha->hw;
1228 struct fc_port *sess = NULL;
1231 struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
1232 unsigned long flags;
1234 loop_id = le16_to_cpu(n->u.isp24.nport_handle);
1235 if (loop_id == 0xFFFF) {
1237 atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
1238 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1239 qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
1240 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1242 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1243 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
1244 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1247 ql_dbg(ql_dbg_tgt, vha, 0xe000,
1248 "Using sess for qla_tgt_reset: %p\n", sess);
1254 ql_dbg(ql_dbg_tgt, vha, 0xe047,
1255 "scsi(%ld): resetting (session %p from port %8phC mcmd %x, "
1256 "loop_id %d)\n", vha->host_no, sess, sess->port_name,
1259 return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK);
1262 static void qla24xx_chk_fcp_state(struct fc_port *sess)
1264 if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) {
1265 sess->logout_on_delete = 0;
1266 sess->logo_ack_needed = 0;
1267 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1271 void qlt_schedule_sess_for_deletion(struct fc_port *sess)
1273 struct qla_tgt *tgt = sess->tgt;
1274 unsigned long flags;
1277 switch (sess->disc_state) {
1278 case DSC_DELETE_PEND:
1281 if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
1282 !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) {
1283 if (tgt && tgt->tgt_stop && tgt->sess_count == 0)
1284 wake_up_all(&tgt->waitQ);
1286 if (sess->vha->fcport_count == 0)
1287 wake_up_all(&sess->vha->fcport_waitQ);
1291 case DSC_UPD_FCPORT:
1293 * This port is not done reporting to upper layer.
1296 sess->next_disc_state = DSC_DELETE_PEND;
1297 sec = jiffies_to_msecs(jiffies -
1298 sess->jiffies_at_registration)/1000;
1299 if (sess->sec_since_registration < sec && sec && !(sec % 5)) {
1300 sess->sec_since_registration = sec;
1301 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
1302 "%s %8phC : Slow Rport registration(%d Sec)\n",
1303 __func__, sess->port_name, sec);
1310 spin_lock_irqsave(&sess->vha->work_lock, flags);
1311 if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
1312 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1315 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1316 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1318 sess->prli_pend_timer = 0;
1319 qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
1321 qla24xx_chk_fcp_state(sess);
1323 ql_dbg(ql_log_warn, sess->vha, 0xe001,
1324 "Scheduling sess %p for deletion %8phC fc4_type %x\n",
1325 sess, sess->port_name, sess->fc4_type);
1327 WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work));
1330 static void qlt_clear_tgt_db(struct qla_tgt *tgt)
1332 struct fc_port *sess;
1333 scsi_qla_host_t *vha = tgt->vha;
1335 list_for_each_entry(sess, &vha->vp_fcports, list) {
1337 qlt_schedule_sess_for_deletion(sess);
1340 /* At this point tgt could be already dead */
1343 static int qla24xx_get_loop_id(struct scsi_qla_host *vha, be_id_t s_id,
1346 struct qla_hw_data *ha = vha->hw;
1347 dma_addr_t gid_list_dma;
1348 struct gid_list_info *gid_list, *gid;
1352 gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1353 &gid_list_dma, GFP_KERNEL);
1355 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044,
1356 "qla_target(%d): DMA Alloc failed of %u\n",
1357 vha->vp_idx, qla2x00_gid_list_size(ha));
1361 /* Get list of logged in devices */
1362 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries);
1363 if (rc != QLA_SUCCESS) {
1364 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045,
1365 "qla_target(%d): get_id_list() failed: %x\n",
1368 goto out_free_id_list;
1373 for (i = 0; i < entries; i++) {
1374 if (gid->al_pa == s_id.al_pa &&
1375 gid->area == s_id.area &&
1376 gid->domain == s_id.domain) {
1377 *loop_id = le16_to_cpu(gid->loop_id);
1381 gid = (void *)gid + ha->gid_list_info_size;
1385 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1386 gid_list, gid_list_dma);
1391 * Adds an extra ref to allow to drop hw lock after adding sess to the list.
1392 * Caller must put it.
1394 static struct fc_port *qlt_create_sess(
1395 struct scsi_qla_host *vha,
1399 struct qla_hw_data *ha = vha->hw;
1400 struct fc_port *sess = fcport;
1401 unsigned long flags;
1403 if (vha->vha_tgt.qla_tgt->tgt_stop)
1406 if (fcport->se_sess) {
1407 if (!kref_get_unless_zero(&sess->sess_kref)) {
1408 ql_dbg(ql_dbg_disc, vha, 0x20f6,
1409 "%s: kref_get_unless_zero failed for %8phC\n",
1410 __func__, sess->port_name);
1415 sess->tgt = vha->vha_tgt.qla_tgt;
1416 sess->local = local;
1419 * Under normal circumstances we want to logout from firmware when
1420 * session eventually ends and release corresponding nport handle.
1421 * In the exception cases (e.g. when new PLOGI is waiting) corresponding
1422 * code will adjust these flags as necessary.
1424 sess->logout_on_delete = 1;
1425 sess->keep_nport_handle = 0;
1426 sess->logout_completed = 0;
1428 if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
1429 &fcport->port_name[0], sess) < 0) {
1430 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015,
1431 "(%d) %8phC check_initiator_node_acl failed\n",
1432 vha->vp_idx, fcport->port_name);
1435 kref_init(&fcport->sess_kref);
1437 * Take an extra reference to ->sess_kref here to handle
1438 * fc_port access across ->tgt.sess_lock reaquire.
1440 if (!kref_get_unless_zero(&sess->sess_kref)) {
1441 ql_dbg(ql_dbg_disc, vha, 0x20f7,
1442 "%s: kref_get_unless_zero failed for %8phC\n",
1443 __func__, sess->port_name);
1447 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1448 if (!IS_SW_RESV_ADDR(sess->d_id))
1449 vha->vha_tgt.qla_tgt->sess_count++;
1451 qlt_do_generation_tick(vha, &sess->generation);
1452 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1455 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006,
1456 "Adding sess %p se_sess %p to tgt %p sess_count %d\n",
1457 sess, sess->se_sess, vha->vha_tgt.qla_tgt,
1458 vha->vha_tgt.qla_tgt->sess_count);
1460 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b,
1461 "qla_target(%d): %ssession for wwn %8phC (loop_id %d, "
1462 "s_id %x:%x:%x, confirmed completion %ssupported) added\n",
1463 vha->vp_idx, local ? "local " : "", fcport->port_name,
1464 fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area,
1465 sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not ");
1471 * max_gen - specifies maximum session generation
1472 * at which this deletion requestion is still valid
1475 qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
1477 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1478 struct fc_port *sess = fcport;
1479 unsigned long flags;
1481 if (!vha->hw->tgt.tgt_ops)
1487 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1488 if (tgt->tgt_stop) {
1489 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1492 if (!sess->se_sess) {
1493 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1497 if (max_gen - sess->generation < 0) {
1498 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1499 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092,
1500 "Ignoring stale deletion request for se_sess %p / sess %p"
1501 " for port %8phC, req_gen %d, sess_gen %d\n",
1502 sess->se_sess, sess, sess->port_name, max_gen,
1507 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
1510 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1511 qlt_schedule_sess_for_deletion(sess);
1514 static inline int test_tgt_sess_count(struct qla_tgt *tgt)
1516 struct qla_hw_data *ha = tgt->ha;
1517 unsigned long flags;
1520 * We need to protect against race, when tgt is freed before or
1523 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1524 ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
1525 "tgt %p, sess_count=%d\n",
1526 tgt, tgt->sess_count);
1527 res = (tgt->sess_count == 0);
1528 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1533 /* Called by tcm_qla2xxx configfs code */
1534 int qlt_stop_phase1(struct qla_tgt *tgt)
1536 struct scsi_qla_host *vha = tgt->vha;
1537 struct qla_hw_data *ha = tgt->ha;
1538 unsigned long flags;
1540 mutex_lock(&ha->optrom_mutex);
1541 mutex_lock(&qla_tgt_mutex);
1543 if (tgt->tgt_stop || tgt->tgt_stopped) {
1544 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e,
1545 "Already in tgt->tgt_stop or tgt_stopped state\n");
1546 mutex_unlock(&qla_tgt_mutex);
1547 mutex_unlock(&ha->optrom_mutex);
1551 ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n",
1554 * Mutex needed to sync with qla_tgt_fc_port_[added,deleted].
1555 * Lock is needed, because we still can get an incoming packet.
1557 mutex_lock(&vha->vha_tgt.tgt_mutex);
1559 qlt_clear_tgt_db(tgt);
1560 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1561 mutex_unlock(&qla_tgt_mutex);
1563 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
1564 "Waiting for sess works (tgt %p)", tgt);
1565 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1566 while (!list_empty(&tgt->sess_works_list)) {
1567 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1568 flush_scheduled_work();
1569 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1571 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1573 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
1574 "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count);
1576 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1579 if (!ha->flags.host_shutting_down &&
1580 (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)))
1581 qlt_disable_vha(vha);
1583 /* Wait for sessions to clear out (just in case) */
1584 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1585 mutex_unlock(&ha->optrom_mutex);
1589 EXPORT_SYMBOL(qlt_stop_phase1);
1591 /* Called by tcm_qla2xxx configfs code */
1592 void qlt_stop_phase2(struct qla_tgt *tgt)
1594 scsi_qla_host_t *vha = tgt->vha;
1596 if (tgt->tgt_stopped) {
1597 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f,
1598 "Already in tgt->tgt_stopped state\n");
1602 if (!tgt->tgt_stop) {
1603 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b,
1604 "%s: phase1 stop is not completed\n", __func__);
1609 mutex_lock(&tgt->ha->optrom_mutex);
1610 mutex_lock(&vha->vha_tgt.tgt_mutex);
1612 tgt->tgt_stopped = 1;
1613 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1614 mutex_unlock(&tgt->ha->optrom_mutex);
1616 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n",
1619 switch (vha->qlini_mode) {
1620 case QLA2XXX_INI_MODE_EXCLUSIVE:
1621 vha->flags.online = 1;
1622 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1628 EXPORT_SYMBOL(qlt_stop_phase2);
1630 /* Called from qlt_remove_target() -> qla2x00_remove_one() */
1631 static void qlt_release(struct qla_tgt *tgt)
1633 scsi_qla_host_t *vha = tgt->vha;
1637 struct qla_qpair_hint *h;
1638 struct qla_hw_data *ha = vha->hw;
1640 if (!tgt->tgt_stop && !tgt->tgt_stopped)
1641 qlt_stop_phase1(tgt);
1643 if (!tgt->tgt_stopped)
1644 qlt_stop_phase2(tgt);
1646 for (i = 0; i < vha->hw->max_qpairs + 1; i++) {
1647 unsigned long flags;
1649 h = &tgt->qphints[i];
1651 spin_lock_irqsave(h->qpair->qp_lock_ptr, flags);
1652 list_del(&h->hint_elem);
1653 spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags);
1657 kfree(tgt->qphints);
1658 mutex_lock(&qla_tgt_mutex);
1659 list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
1660 mutex_unlock(&qla_tgt_mutex);
1662 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
1663 btree_remove64(&tgt->lun_qpair_map, key);
1665 btree_destroy64(&tgt->lun_qpair_map);
1668 if (ha->tgt.tgt_ops &&
1669 ha->tgt.tgt_ops->remove_target &&
1670 vha->vha_tgt.target_lport_ptr)
1671 ha->tgt.tgt_ops->remove_target(vha);
1673 vha->vha_tgt.qla_tgt = NULL;
1675 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
1676 "Release of tgt %p finished\n", tgt);
1681 /* ha->hardware_lock supposed to be held on entry */
1682 static int qlt_sched_sess_work(struct qla_tgt *tgt, int type,
1683 const void *param, unsigned int param_size)
1685 struct qla_tgt_sess_work_param *prm;
1686 unsigned long flags;
1688 prm = kzalloc(sizeof(*prm), GFP_ATOMIC);
1690 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050,
1691 "qla_target(%d): Unable to create session "
1692 "work, command will be refused", 0);
1696 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e,
1697 "Scheduling work (type %d, prm %p)"
1698 " to find session for param %p (size %d, tgt %p)\n",
1699 type, prm, param, param_size, tgt);
1702 memcpy(&prm->tm_iocb, param, param_size);
1704 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1705 list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list);
1706 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1708 schedule_work(&tgt->sess_work);
1714 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1716 static void qlt_send_notify_ack(struct qla_qpair *qpair,
1717 struct imm_ntfy_from_isp *ntfy,
1718 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
1719 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan)
1721 struct scsi_qla_host *vha = qpair->vha;
1722 struct qla_hw_data *ha = vha->hw;
1724 struct nack_to_isp *nack;
1726 if (!ha->flags.fw_started)
1729 ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha);
1731 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
1733 ql_dbg(ql_dbg_tgt, vha, 0xe049,
1734 "qla_target(%d): %s failed: unable to allocate "
1735 "request packet\n", vha->vp_idx, __func__);
1739 if (vha->vha_tgt.qla_tgt != NULL)
1740 vha->vha_tgt.qla_tgt->notify_ack_expected++;
1742 pkt->entry_type = NOTIFY_ACK_TYPE;
1743 pkt->entry_count = 1;
1745 nack = (struct nack_to_isp *)pkt;
1746 nack->ox_id = ntfy->ox_id;
1748 nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE;
1749 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
1750 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
1751 nack->u.isp24.flags = ntfy->u.isp24.flags &
1752 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
1754 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
1755 nack->u.isp24.status = ntfy->u.isp24.status;
1756 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
1757 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
1758 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
1759 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
1760 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
1761 nack->u.isp24.srr_flags = cpu_to_le16(srr_flags);
1762 nack->u.isp24.srr_reject_code = srr_reject_code;
1763 nack->u.isp24.srr_reject_code_expl = srr_explan;
1764 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
1766 /* TODO qualify this with EDIF enable */
1767 if (ntfy->u.isp24.status_subcode == ELS_PLOGI &&
1768 (le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
1769 nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP);
1772 ql_dbg(ql_dbg_tgt, vha, 0xe005,
1773 "qla_target(%d): Sending 24xx Notify Ack %d\n",
1774 vha->vp_idx, nack->u.isp24.status);
1776 /* Memory Barrier */
1778 qla2x00_start_iocbs(vha, qpair->req);
1781 static int qlt_build_abts_resp_iocb(struct qla_tgt_mgmt_cmd *mcmd)
1783 struct scsi_qla_host *vha = mcmd->vha;
1784 struct qla_hw_data *ha = vha->hw;
1785 struct abts_resp_to_24xx *resp;
1790 struct abts_recv_from_24xx *abts = &mcmd->orig_iocb.abts;
1791 struct qla_qpair *qpair = mcmd->qpair;
1793 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1794 "Sending task mgmt ABTS response (ha=%p, status=%x)\n",
1795 ha, mcmd->fc_tm_rsp);
1797 rc = qlt_check_reserve_free_req(qpair, 1);
1799 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1800 "qla_target(%d): %s failed: unable to allocate request packet\n",
1801 vha->vp_idx, __func__);
1805 resp = (struct abts_resp_to_24xx *)qpair->req->ring_ptr;
1806 memset(resp, 0, sizeof(*resp));
1808 h = qlt_make_handle(qpair);
1809 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
1811 * CTIO type 7 from the firmware doesn't provide a way to
1812 * know the initiator's LOOP ID, hence we can't find
1813 * the session and, so, the command.
1817 qpair->req->outstanding_cmds[h] = (srb_t *)mcmd;
1820 resp->handle = make_handle(qpair->req->id, h);
1821 resp->entry_type = ABTS_RESP_24XX;
1822 resp->entry_count = 1;
1823 resp->nport_handle = abts->nport_handle;
1824 resp->vp_index = vha->vp_idx;
1825 resp->sof_type = abts->sof_type;
1826 resp->exchange_address = abts->exchange_address;
1827 resp->fcp_hdr_le = abts->fcp_hdr_le;
1828 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1829 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1830 F_CTL_SEQ_INITIATIVE);
1831 p = (uint8_t *)&f_ctl;
1832 resp->fcp_hdr_le.f_ctl[0] = *p++;
1833 resp->fcp_hdr_le.f_ctl[1] = *p++;
1834 resp->fcp_hdr_le.f_ctl[2] = *p;
1836 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
1837 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
1839 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1840 if (mcmd->fc_tm_rsp == FCP_TMF_CMPL) {
1841 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1842 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1843 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1844 resp->payload.ba_acct.high_seq_cnt = cpu_to_le16(0xFFFF);
1845 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1846 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1848 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1849 resp->payload.ba_rjt.reason_code =
1850 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1851 /* Other bytes are zero */
1854 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1856 /* Memory Barrier */
1858 if (qpair->reqq_start_iocbs)
1859 qpair->reqq_start_iocbs(qpair);
1861 qla2x00_start_iocbs(vha, qpair->req);
1867 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1869 static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair,
1870 struct abts_recv_from_24xx *abts, uint32_t status,
1873 struct scsi_qla_host *vha = qpair->vha;
1874 struct qla_hw_data *ha = vha->hw;
1875 struct abts_resp_to_24xx *resp;
1879 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1880 "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
1883 resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair,
1886 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1887 "qla_target(%d): %s failed: unable to allocate "
1888 "request packet", vha->vp_idx, __func__);
1892 resp->entry_type = ABTS_RESP_24XX;
1893 resp->handle = QLA_TGT_SKIP_HANDLE;
1894 resp->entry_count = 1;
1895 resp->nport_handle = abts->nport_handle;
1896 resp->vp_index = vha->vp_idx;
1897 resp->sof_type = abts->sof_type;
1898 resp->exchange_address = abts->exchange_address;
1899 resp->fcp_hdr_le = abts->fcp_hdr_le;
1900 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1901 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1902 F_CTL_SEQ_INITIATIVE);
1903 p = (uint8_t *)&f_ctl;
1904 resp->fcp_hdr_le.f_ctl[0] = *p++;
1905 resp->fcp_hdr_le.f_ctl[1] = *p++;
1906 resp->fcp_hdr_le.f_ctl[2] = *p;
1908 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.d_id;
1909 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.s_id;
1911 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
1912 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
1914 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1915 if (status == FCP_TMF_CMPL) {
1916 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1917 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1918 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1919 resp->payload.ba_acct.high_seq_cnt = cpu_to_le16(0xFFFF);
1920 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1921 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1923 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1924 resp->payload.ba_rjt.reason_code =
1925 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1926 /* Other bytes are zero */
1929 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1931 /* Memory Barrier */
1933 if (qpair->reqq_start_iocbs)
1934 qpair->reqq_start_iocbs(qpair);
1936 qla2x00_start_iocbs(vha, qpair->req);
1940 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1942 static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha,
1943 struct qla_qpair *qpair, response_t *pkt, struct qla_tgt_mgmt_cmd *mcmd)
1945 struct ctio7_to_24xx *ctio;
1947 struct abts_recv_from_24xx *entry;
1949 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, NULL);
1951 ql_dbg(ql_dbg_tgt, vha, 0xe04b,
1952 "qla_target(%d): %s failed: unable to allocate "
1953 "request packet\n", vha->vp_idx, __func__);
1958 /* abts from remote port */
1959 entry = &mcmd->orig_iocb.abts;
1961 /* abts from this driver. */
1962 entry = (struct abts_recv_from_24xx *)pkt;
1965 * We've got on entrance firmware's response on by us generated
1966 * ABTS response. So, in it ID fields are reversed.
1969 ctio->entry_type = CTIO_TYPE7;
1970 ctio->entry_count = 1;
1971 ctio->nport_handle = entry->nport_handle;
1972 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
1973 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
1974 ctio->vp_index = vha->vp_idx;
1975 ctio->exchange_addr = entry->exchange_addr_to_abort;
1976 tmp = (CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE);
1979 ctio->initiator_id = entry->fcp_hdr_le.s_id;
1981 if (mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID)
1982 tmp |= (mcmd->abort_io_attr << 9);
1983 else if (qpair->retry_term_cnt & 1)
1986 ctio->initiator_id = entry->fcp_hdr_le.d_id;
1988 if (qpair->retry_term_cnt & 1)
1991 ctio->u.status1.flags = cpu_to_le16(tmp);
1992 ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id;
1994 ql_dbg(ql_dbg_tgt, vha, 0xe007,
1995 "Sending retry TERM EXCH CTIO7 flags %04xh oxid %04xh attr valid %x\n",
1996 le16_to_cpu(ctio->u.status1.flags),
1997 le16_to_cpu(ctio->u.status1.ox_id),
1998 (mcmd && mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID) ? 1 : 0);
2000 /* Memory Barrier */
2002 if (qpair->reqq_start_iocbs)
2003 qpair->reqq_start_iocbs(qpair);
2005 qla2x00_start_iocbs(vha, qpair->req);
2008 qlt_build_abts_resp_iocb(mcmd);
2010 qlt_24xx_send_abts_resp(qpair,
2011 (struct abts_recv_from_24xx *)entry, FCP_TMF_CMPL, true);
2015 /* drop cmds for the given lun
2016 * XXX only looks for cmds on the port through which lun reset was recieved
2017 * XXX does not go through the list of other port (which may have cmds
2020 static void abort_cmds_for_lun(struct scsi_qla_host *vha, u64 lun, be_id_t s_id)
2022 struct qla_tgt_sess_op *op;
2023 struct qla_tgt_cmd *cmd;
2025 unsigned long flags;
2027 key = sid_to_key(s_id);
2028 spin_lock_irqsave(&vha->cmd_list_lock, flags);
2029 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
2033 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
2034 op_lun = scsilun_to_int(
2035 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
2036 if (op_key == key && op_lun == lun)
2040 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
2044 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
2045 op_lun = scsilun_to_int(
2046 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
2047 if (op_key == key && op_lun == lun)
2051 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
2055 cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
2056 cmd_lun = scsilun_to_int(
2057 (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun);
2058 if (cmd_key == key && cmd_lun == lun)
2061 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
2064 static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha,
2065 uint64_t unpacked_lun)
2067 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
2068 struct qla_qpair_hint *h = NULL;
2070 if (vha->flags.qpairs_available) {
2071 h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun);
2073 h = &tgt->qphints[0];
2075 h = &tgt->qphints[0];
2081 static void qlt_do_tmr_work(struct work_struct *work)
2083 struct qla_tgt_mgmt_cmd *mcmd =
2084 container_of(work, struct qla_tgt_mgmt_cmd, work);
2085 struct qla_hw_data *ha = mcmd->vha->hw;
2088 unsigned long flags;
2090 switch (mcmd->tmr_func) {
2092 tag = le32_to_cpu(mcmd->orig_iocb.abts.exchange_addr_to_abort);
2099 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun,
2100 mcmd->tmr_func, tag);
2103 spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags);
2104 switch (mcmd->tmr_func) {
2106 mcmd->fc_tm_rsp = FCP_TMF_REJECTED;
2107 qlt_build_abts_resp_iocb(mcmd);
2109 case QLA_TGT_LUN_RESET:
2110 case QLA_TGT_CLEAR_TS:
2111 case QLA_TGT_ABORT_TS:
2112 case QLA_TGT_CLEAR_ACA:
2113 case QLA_TGT_TARGET_RESET:
2114 qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio,
2118 case QLA_TGT_ABORT_ALL:
2119 case QLA_TGT_NEXUS_LOSS_SESS:
2120 case QLA_TGT_NEXUS_LOSS:
2121 qlt_send_notify_ack(mcmd->qpair,
2122 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2125 spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags);
2127 ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052,
2128 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
2129 mcmd->vha->vp_idx, rc);
2130 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2134 /* ha->hardware_lock supposed to be held on entry */
2135 static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2136 struct abts_recv_from_24xx *abts, struct fc_port *sess)
2138 struct qla_hw_data *ha = vha->hw;
2139 struct qla_tgt_mgmt_cmd *mcmd;
2140 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
2141 struct qla_tgt_cmd *abort_cmd;
2143 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
2144 "qla_target(%d): task abort (tag=%d)\n",
2145 vha->vp_idx, abts->exchange_addr_to_abort);
2147 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
2149 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051,
2150 "qla_target(%d): %s: Allocation of ABORT cmd failed",
2151 vha->vp_idx, __func__);
2154 memset(mcmd, 0, sizeof(*mcmd));
2155 mcmd->cmd_type = TYPE_TGT_TMCMD;
2157 memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
2158 mcmd->reset_count = ha->base_qpair->chip_reset;
2159 mcmd->tmr_func = QLA_TGT_ABTS;
2160 mcmd->qpair = h->qpair;
2164 * LUN is looked up by target-core internally based on the passed
2165 * abts->exchange_addr_to_abort tag.
2167 mcmd->se_cmd.cpuid = h->cpuid;
2169 abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
2170 le32_to_cpu(abts->exchange_addr_to_abort));
2173 mcmd->unpacked_lun = abort_cmd->se_cmd.orig_fe_lun;
2175 if (abort_cmd->qpair) {
2176 mcmd->qpair = abort_cmd->qpair;
2177 mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid;
2178 mcmd->abort_io_attr = abort_cmd->atio.u.isp24.attr;
2179 mcmd->flags = QLA24XX_MGMT_ABORT_IO_ATTR_VALID;
2182 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
2183 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work);
2189 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2191 static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2192 struct abts_recv_from_24xx *abts)
2194 struct qla_hw_data *ha = vha->hw;
2195 struct fc_port *sess;
2196 uint32_t tag = le32_to_cpu(abts->exchange_addr_to_abort);
2199 unsigned long flags;
2201 if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) {
2202 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053,
2203 "qla_target(%d): ABTS: Abort Sequence not "
2204 "supported\n", vha->vp_idx);
2205 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2210 if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
2211 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010,
2212 "qla_target(%d): ABTS: Unknown Exchange "
2213 "Address received\n", vha->vp_idx);
2214 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2219 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011,
2220 "qla_target(%d): task abort (s_id=%x:%x:%x, "
2221 "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id.domain,
2222 abts->fcp_hdr_le.s_id.area, abts->fcp_hdr_le.s_id.al_pa, tag,
2223 le32_to_cpu(abts->fcp_hdr_le.parameter));
2225 s_id = le_id_to_be(abts->fcp_hdr_le.s_id);
2227 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
2228 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
2230 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
2231 "qla_target(%d): task abort for non-existent session\n",
2233 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2235 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2239 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2242 if (sess->deleted) {
2243 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2248 rc = __qlt_24xx_handle_abts(vha, abts, sess);
2250 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054,
2251 "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
2253 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2260 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2262 static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair,
2263 struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code)
2265 struct scsi_qla_host *ha = mcmd->vha;
2266 struct atio_from_isp *atio = &mcmd->orig_iocb.atio;
2267 struct ctio7_to_24xx *ctio;
2270 ql_dbg(ql_dbg_tgt, ha, 0xe008,
2271 "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n",
2272 ha, atio, resp_code);
2275 ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL);
2277 ql_dbg(ql_dbg_tgt, ha, 0xe04c,
2278 "qla_target(%d): %s failed: unable to allocate "
2279 "request packet\n", ha->vp_idx, __func__);
2283 ctio->entry_type = CTIO_TYPE7;
2284 ctio->entry_count = 1;
2285 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
2286 ctio->nport_handle = cpu_to_le16(mcmd->sess->loop_id);
2287 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2288 ctio->vp_index = ha->vp_idx;
2289 ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2290 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2291 temp = (atio->u.isp24.attr << 9)|
2292 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2293 ctio->u.status1.flags = cpu_to_le16(temp);
2294 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2295 ctio->u.status1.ox_id = cpu_to_le16(temp);
2296 ctio->u.status1.scsi_status =
2297 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
2298 ctio->u.status1.response_len = cpu_to_le16(8);
2299 ctio->u.status1.sense_data[0] = resp_code;
2301 /* Memory Barrier */
2303 if (qpair->reqq_start_iocbs)
2304 qpair->reqq_start_iocbs(qpair);
2306 qla2x00_start_iocbs(ha, qpair->req);
2309 void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
2311 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2313 EXPORT_SYMBOL(qlt_free_mcmd);
2316 * ha->hardware_lock supposed to be held on entry. Might drop it, then
2319 void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
2320 uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq)
2322 struct atio_from_isp *atio = &cmd->atio;
2323 struct ctio7_to_24xx *ctio;
2325 struct scsi_qla_host *vha = cmd->vha;
2327 ql_dbg(ql_dbg_tgt_dif, vha, 0x3066,
2328 "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, "
2329 "sense_key=%02x, asc=%02x, ascq=%02x",
2330 vha, atio, scsi_status, sense_key, asc, ascq);
2332 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
2334 ql_dbg(ql_dbg_async, vha, 0x3067,
2335 "qla2x00t(%ld): %s failed: unable to allocate request packet",
2336 vha->host_no, __func__);
2340 ctio->entry_type = CTIO_TYPE7;
2341 ctio->entry_count = 1;
2342 ctio->handle = QLA_TGT_SKIP_HANDLE;
2343 ctio->nport_handle = cpu_to_le16(cmd->sess->loop_id);
2344 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2345 ctio->vp_index = vha->vp_idx;
2346 ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2347 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2348 temp = (atio->u.isp24.attr << 9) |
2349 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2350 ctio->u.status1.flags = cpu_to_le16(temp);
2351 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2352 ctio->u.status1.ox_id = cpu_to_le16(temp);
2353 ctio->u.status1.scsi_status =
2354 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status);
2355 ctio->u.status1.response_len = cpu_to_le16(18);
2356 ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
2358 if (ctio->u.status1.residual != 0)
2359 ctio->u.status1.scsi_status |=
2360 cpu_to_le16(SS_RESIDUAL_UNDER);
2362 /* Fixed format sense data. */
2363 ctio->u.status1.sense_data[0] = 0x70;
2364 ctio->u.status1.sense_data[2] = sense_key;
2365 /* Additional sense length */
2366 ctio->u.status1.sense_data[7] = 0xa;
2368 ctio->u.status1.sense_data[12] = asc;
2369 ctio->u.status1.sense_data[13] = ascq;
2371 /* Memory Barrier */
2374 if (qpair->reqq_start_iocbs)
2375 qpair->reqq_start_iocbs(qpair);
2377 qla2x00_start_iocbs(vha, qpair->req);
2383 /* callback from target fabric module code */
2384 void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
2386 struct scsi_qla_host *vha = mcmd->sess->vha;
2387 struct qla_hw_data *ha = vha->hw;
2388 unsigned long flags;
2389 struct qla_qpair *qpair = mcmd->qpair;
2390 bool free_mcmd = true;
2392 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013,
2393 "TM response mcmd (%p) status %#x state %#x",
2394 mcmd, mcmd->fc_tm_rsp, mcmd->flags);
2396 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
2398 if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) {
2400 * Either the port is not online or this request was from
2401 * previous life, just abort the processing.
2403 ql_dbg(ql_dbg_async, vha, 0xe100,
2404 "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n",
2405 vha->flags.online, qla2x00_reset_active(vha),
2406 mcmd->reset_count, qpair->chip_reset);
2407 ha->tgt.tgt_ops->free_mcmd(mcmd);
2408 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2412 if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) {
2413 switch (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode) {
2417 ql_dbg(ql_dbg_disc, vha, 0x2106,
2418 "TM response logo %8phC status %#x state %#x",
2419 mcmd->sess->port_name, mcmd->fc_tm_rsp,
2421 qlt_schedule_sess_for_deletion(mcmd->sess);
2424 qlt_send_notify_ack(vha->hw->base_qpair,
2425 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2429 if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) {
2430 qlt_build_abts_resp_iocb(mcmd);
2433 qlt_24xx_send_task_mgmt_ctio(qpair, mcmd,
2437 * Make the callback for ->free_mcmd() to queue_work() and invoke
2438 * target_put_sess_cmd() to drop cmd_kref to 1. The final
2439 * target_put_sess_cmd() call will be made from TFO->check_stop_free()
2440 * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd
2441 * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() ->
2442 * qlt_xmit_tm_rsp() returns here..
2445 ha->tgt.tgt_ops->free_mcmd(mcmd);
2447 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2449 EXPORT_SYMBOL(qlt_xmit_tm_rsp);
2452 static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm)
2454 struct qla_tgt_cmd *cmd = prm->cmd;
2456 BUG_ON(cmd->sg_cnt == 0);
2458 prm->sg = (struct scatterlist *)cmd->sg;
2459 prm->seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev, cmd->sg,
2460 cmd->sg_cnt, cmd->dma_data_direction);
2461 if (unlikely(prm->seg_cnt == 0))
2464 prm->cmd->sg_mapped = 1;
2466 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) {
2468 * If greater than four sg entries then we need to allocate
2469 * the continuation entries
2471 if (prm->seg_cnt > QLA_TGT_DATASEGS_PER_CMD_24XX)
2472 prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt -
2473 QLA_TGT_DATASEGS_PER_CMD_24XX,
2474 QLA_TGT_DATASEGS_PER_CONT_24XX);
2477 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2478 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2479 prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz);
2480 prm->tot_dsds = prm->seg_cnt;
2482 prm->tot_dsds = prm->seg_cnt;
2484 if (cmd->prot_sg_cnt) {
2485 prm->prot_sg = cmd->prot_sg;
2486 prm->prot_seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev,
2487 cmd->prot_sg, cmd->prot_sg_cnt,
2488 cmd->dma_data_direction);
2489 if (unlikely(prm->prot_seg_cnt == 0))
2492 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2493 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2494 /* Dif Bundling not support here */
2495 prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen,
2497 prm->tot_dsds += prm->prot_seg_cnt;
2499 prm->tot_dsds += prm->prot_seg_cnt;
2506 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d,
2507 "qla_target(%d): PCI mapping failed: sg_cnt=%d",
2508 0, prm->cmd->sg_cnt);
2512 static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd)
2514 struct qla_hw_data *ha;
2515 struct qla_qpair *qpair;
2517 if (!cmd->sg_mapped)
2522 dma_unmap_sg(&qpair->pdev->dev, cmd->sg, cmd->sg_cnt,
2523 cmd->dma_data_direction);
2526 if (cmd->prot_sg_cnt)
2527 dma_unmap_sg(&qpair->pdev->dev, cmd->prot_sg, cmd->prot_sg_cnt,
2528 cmd->dma_data_direction);
2533 if (cmd->ctx_dsd_alloced)
2534 qla2x00_clean_dsd_pool(ha, cmd->ctx);
2536 dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma);
2539 static int qlt_check_reserve_free_req(struct qla_qpair *qpair,
2543 struct req_que *req = qpair->req;
2545 if (req->cnt < (req_cnt + 2)) {
2546 cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr :
2547 rd_reg_dword_relaxed(req->req_q_out));
2549 if (req->ring_index < cnt)
2550 req->cnt = cnt - req->ring_index;
2552 req->cnt = req->length - (req->ring_index - cnt);
2554 if (unlikely(req->cnt < (req_cnt + 2)))
2558 req->cnt -= req_cnt;
2564 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2566 static inline void *qlt_get_req_pkt(struct req_que *req)
2568 /* Adjust ring index. */
2570 if (req->ring_index == req->length) {
2571 req->ring_index = 0;
2572 req->ring_ptr = req->ring;
2576 return (cont_entry_t *)req->ring_ptr;
2579 /* ha->hardware_lock supposed to be held on entry */
2580 static inline uint32_t qlt_make_handle(struct qla_qpair *qpair)
2585 struct req_que *req = qpair->req;
2587 h = req->current_outstanding_cmd;
2589 for (index = 1; index < req->num_outstanding_cmds; index++) {
2591 if (h == req->num_outstanding_cmds)
2594 if (h == QLA_TGT_SKIP_HANDLE)
2597 if (!req->outstanding_cmds[h]) {
2604 req->current_outstanding_cmd = h;
2606 ql_dbg(ql_dbg_io, qpair->vha, 0x305b,
2607 "qla_target(%d): Ran out of empty cmd slots\n",
2608 qpair->vha->vp_idx);
2609 h = QLA_TGT_NULL_HANDLE;
2615 /* ha->hardware_lock supposed to be held on entry */
2616 static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair,
2617 struct qla_tgt_prm *prm)
2620 struct ctio7_to_24xx *pkt;
2621 struct atio_from_isp *atio = &prm->cmd->atio;
2623 struct qla_tgt_cmd *cmd = prm->cmd;
2625 pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr;
2627 memset(pkt, 0, sizeof(*pkt));
2629 pkt->entry_type = CTIO_TYPE7;
2630 pkt->entry_count = (uint8_t)prm->req_cnt;
2631 pkt->vp_index = prm->cmd->vp_idx;
2633 h = qlt_make_handle(qpair);
2634 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
2636 * CTIO type 7 from the firmware doesn't provide a way to
2637 * know the initiator's LOOP ID, hence we can't find
2638 * the session and, so, the command.
2642 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
2644 pkt->handle = make_handle(qpair->req->id, h);
2645 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
2646 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
2647 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2648 pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2649 pkt->exchange_addr = atio->u.isp24.exchange_addr;
2650 temp = atio->u.isp24.attr << 9;
2651 pkt->u.status0.flags |= cpu_to_le16(temp);
2652 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2653 pkt->u.status0.ox_id = cpu_to_le16(temp);
2654 pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset);
2657 if (cmd->dma_data_direction == DMA_TO_DEVICE)
2658 prm->cmd->sess->edif.rx_bytes += cmd->bufflen;
2659 if (cmd->dma_data_direction == DMA_FROM_DEVICE)
2660 prm->cmd->sess->edif.tx_bytes += cmd->bufflen;
2662 pkt->u.status0.edif_flags |= EF_EN_EDIF;
2669 * ha->hardware_lock supposed to be held on entry. We have already made sure
2670 * that there is sufficient amount of request entries to not drop it.
2672 static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm)
2675 struct dsd64 *cur_dsd;
2677 /* Build continuation packets */
2678 while (prm->seg_cnt > 0) {
2679 cont_a64_entry_t *cont_pkt64 =
2680 (cont_a64_entry_t *)qlt_get_req_pkt(
2681 prm->cmd->qpair->req);
2684 * Make sure that from cont_pkt64 none of
2685 * 64-bit specific fields used for 32-bit
2686 * addressing. Cast to (cont_entry_t *) for
2690 memset(cont_pkt64, 0, sizeof(*cont_pkt64));
2692 cont_pkt64->entry_count = 1;
2693 cont_pkt64->sys_define = 0;
2695 cont_pkt64->entry_type = CONTINUE_A64_TYPE;
2696 cur_dsd = cont_pkt64->dsd;
2698 /* Load continuation entry data segments */
2700 cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt;
2701 cnt++, prm->seg_cnt--) {
2702 append_dsd64(&cur_dsd, prm->sg);
2703 prm->sg = sg_next(prm->sg);
2709 * ha->hardware_lock supposed to be held on entry. We have already made sure
2710 * that there is sufficient amount of request entries to not drop it.
2712 static void qlt_load_data_segments(struct qla_tgt_prm *prm)
2715 struct dsd64 *cur_dsd;
2716 struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt;
2718 pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen);
2720 /* Setup packet address segment pointer */
2721 cur_dsd = &pkt24->u.status0.dsd;
2723 /* Set total data segment count */
2725 pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
2727 if (prm->seg_cnt == 0) {
2728 /* No data transfer */
2729 cur_dsd->address = 0;
2730 cur_dsd->length = 0;
2734 /* If scatter gather */
2736 /* Load command entry data segments */
2738 (cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt;
2739 cnt++, prm->seg_cnt--) {
2740 append_dsd64(&cur_dsd, prm->sg);
2741 prm->sg = sg_next(prm->sg);
2744 qlt_load_cont_data_segments(prm);
2747 static inline int qlt_has_data(struct qla_tgt_cmd *cmd)
2749 return cmd->bufflen > 0;
2752 static void qlt_print_dif_err(struct qla_tgt_prm *prm)
2754 struct qla_tgt_cmd *cmd;
2755 struct scsi_qla_host *vha;
2757 /* asc 0x10=dif error */
2758 if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) {
2762 switch (prm->sense_buffer[13]) {
2764 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b,
2765 "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2766 "se_cmd=%p tag[%x]",
2767 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2768 cmd->atio.u.isp24.exchange_addr);
2771 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c,
2772 "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2773 "se_cmd=%p tag[%x]",
2774 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2775 cmd->atio.u.isp24.exchange_addr);
2778 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f,
2779 "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2780 "se_cmd=%p tag[%x]",
2781 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2782 cmd->atio.u.isp24.exchange_addr);
2785 ql_dbg(ql_dbg_tgt_dif, vha, 0xe010,
2786 "BE detected Dif ERR: lba[%llx|%lld] len[%x] "
2787 "se_cmd=%p tag[%x]",
2788 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2789 cmd->atio.u.isp24.exchange_addr);
2792 ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16);
2797 * Called without ha->hardware_lock held
2799 static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
2800 struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status,
2801 uint32_t *full_req_cnt)
2803 struct se_cmd *se_cmd = &cmd->se_cmd;
2804 struct qla_qpair *qpair = cmd->qpair;
2807 prm->tgt = cmd->tgt;
2809 prm->rq_result = scsi_status;
2810 prm->sense_buffer = &cmd->sense_buffer[0];
2811 prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER;
2816 prm->add_status_pkt = 0;
2817 prm->prot_sg = NULL;
2818 prm->prot_seg_cnt = 0;
2821 if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) {
2822 if (qlt_pci_map_calc_cnt(prm) != 0)
2826 *full_req_cnt = prm->req_cnt;
2828 if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
2829 prm->residual = se_cmd->residual_count;
2830 ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c,
2831 "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2832 prm->residual, se_cmd->tag,
2833 se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
2834 cmd->bufflen, prm->rq_result);
2835 prm->rq_result |= SS_RESIDUAL_UNDER;
2836 } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
2837 prm->residual = se_cmd->residual_count;
2838 ql_dbg_qp(ql_dbg_io, qpair, 0x305d,
2839 "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2840 prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
2841 se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
2842 prm->rq_result |= SS_RESIDUAL_OVER;
2845 if (xmit_type & QLA_TGT_XMIT_STATUS) {
2847 * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be
2848 * ignored in *xmit_response() below
2850 if (qlt_has_data(cmd)) {
2851 if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
2852 (IS_FWI2_CAPABLE(cmd->vha->hw) &&
2853 (prm->rq_result != 0))) {
2854 prm->add_status_pkt = 1;
2863 static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd,
2866 if (cmd->qpair->enable_class_2)
2870 return cmd->conf_compl_supported;
2872 return cmd->qpair->enable_explicit_conf &&
2873 cmd->conf_compl_supported;
2876 static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
2877 struct qla_tgt_prm *prm)
2879 prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
2880 (uint32_t)sizeof(ctio->u.status1.sense_data));
2881 ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
2882 if (qlt_need_explicit_conf(prm->cmd, 0)) {
2883 ctio->u.status0.flags |= cpu_to_le16(
2884 CTIO7_FLAGS_EXPLICIT_CONFORM |
2885 CTIO7_FLAGS_CONFORM_REQ);
2887 ctio->u.status0.residual = cpu_to_le32(prm->residual);
2888 ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result);
2889 if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
2892 if (qlt_need_explicit_conf(prm->cmd, 1)) {
2893 if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) {
2894 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017,
2895 "Skipping EXPLICIT_CONFORM and "
2896 "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
2897 "non GOOD status\n");
2898 goto skip_explict_conf;
2900 ctio->u.status1.flags |= cpu_to_le16(
2901 CTIO7_FLAGS_EXPLICIT_CONFORM |
2902 CTIO7_FLAGS_CONFORM_REQ);
2905 ctio->u.status1.flags &=
2906 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2907 ctio->u.status1.flags |=
2908 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2909 ctio->u.status1.scsi_status |=
2910 cpu_to_le16(SS_SENSE_LEN_VALID);
2911 ctio->u.status1.sense_length =
2912 cpu_to_le16(prm->sense_buffer_len);
2913 for (i = 0; i < prm->sense_buffer_len/4; i++) {
2916 v = get_unaligned_be32(
2917 &((uint32_t *)prm->sense_buffer)[i]);
2918 put_unaligned_le32(v,
2919 &((uint32_t *)ctio->u.status1.sense_data)[i]);
2921 qlt_print_dif_err(prm);
2924 ctio->u.status1.flags &=
2925 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2926 ctio->u.status1.flags |=
2927 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2928 ctio->u.status1.sense_length = 0;
2929 memset(ctio->u.status1.sense_data, 0,
2930 sizeof(ctio->u.status1.sense_data));
2933 /* Sense with len > 24, is it possible ??? */
2937 qlt_hba_err_chk_enabled(struct se_cmd *se_cmd)
2939 switch (se_cmd->prot_op) {
2940 case TARGET_PROT_DOUT_INSERT:
2941 case TARGET_PROT_DIN_STRIP:
2942 if (ql2xenablehba_err_chk >= 1)
2945 case TARGET_PROT_DOUT_PASS:
2946 case TARGET_PROT_DIN_PASS:
2947 if (ql2xenablehba_err_chk >= 2)
2950 case TARGET_PROT_DIN_INSERT:
2951 case TARGET_PROT_DOUT_STRIP:
2960 qla_tgt_ref_mask_check(struct se_cmd *se_cmd)
2962 switch (se_cmd->prot_op) {
2963 case TARGET_PROT_DIN_INSERT:
2964 case TARGET_PROT_DOUT_INSERT:
2965 case TARGET_PROT_DIN_STRIP:
2966 case TARGET_PROT_DOUT_STRIP:
2967 case TARGET_PROT_DIN_PASS:
2968 case TARGET_PROT_DOUT_PASS:
2977 * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command
2980 qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx,
2981 uint16_t *pfw_prot_opts)
2983 struct se_cmd *se_cmd = &cmd->se_cmd;
2984 uint32_t lba = 0xffffffff & se_cmd->t_task_lba;
2985 scsi_qla_host_t *vha = cmd->tgt->vha;
2986 struct qla_hw_data *ha = vha->hw;
2990 * wait till Mode Sense/Select cmd, modepage Ah, subpage 2
2991 * have been immplemented by TCM, before AppTag is avail.
2992 * Look for modesense_handlers[]
2995 ctx->app_tag_mask[0] = 0x0;
2996 ctx->app_tag_mask[1] = 0x0;
2998 if (IS_PI_UNINIT_CAPABLE(ha)) {
2999 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
3000 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
3001 *pfw_prot_opts |= PO_DIS_VALD_APP_ESC;
3002 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
3003 *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
3006 t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts);
3008 switch (se_cmd->prot_type) {
3009 case TARGET_DIF_TYPE0_PROT:
3011 * No check for ql2xenablehba_err_chk, as it
3012 * would be an I/O error if hba tag generation
3015 ctx->ref_tag = cpu_to_le32(lba);
3016 /* enable ALL bytes of the ref tag */
3017 ctx->ref_tag_mask[0] = 0xff;
3018 ctx->ref_tag_mask[1] = 0xff;
3019 ctx->ref_tag_mask[2] = 0xff;
3020 ctx->ref_tag_mask[3] = 0xff;
3022 case TARGET_DIF_TYPE1_PROT:
3024 * For TYPE 1 protection: 16 bit GUARD tag, 32 bit
3025 * REF tag, and 16 bit app tag.
3027 ctx->ref_tag = cpu_to_le32(lba);
3028 if (!qla_tgt_ref_mask_check(se_cmd) ||
3029 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
3030 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
3033 /* enable ALL bytes of the ref tag */
3034 ctx->ref_tag_mask[0] = 0xff;
3035 ctx->ref_tag_mask[1] = 0xff;
3036 ctx->ref_tag_mask[2] = 0xff;
3037 ctx->ref_tag_mask[3] = 0xff;
3039 case TARGET_DIF_TYPE2_PROT:
3041 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF
3042 * tag has to match LBA in CDB + N
3044 ctx->ref_tag = cpu_to_le32(lba);
3045 if (!qla_tgt_ref_mask_check(se_cmd) ||
3046 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
3047 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
3050 /* enable ALL bytes of the ref tag */
3051 ctx->ref_tag_mask[0] = 0xff;
3052 ctx->ref_tag_mask[1] = 0xff;
3053 ctx->ref_tag_mask[2] = 0xff;
3054 ctx->ref_tag_mask[3] = 0xff;
3056 case TARGET_DIF_TYPE3_PROT:
3057 /* For TYPE 3 protection: 16 bit GUARD only */
3058 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
3059 ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] =
3060 ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00;
3066 qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm)
3068 struct dsd64 *cur_dsd;
3069 uint32_t transfer_length = 0;
3070 uint32_t data_bytes;
3072 uint8_t bundling = 1;
3073 struct crc_context *crc_ctx_pkt = NULL;
3074 struct qla_hw_data *ha;
3075 struct ctio_crc2_to_fw *pkt;
3076 dma_addr_t crc_ctx_dma;
3077 uint16_t fw_prot_opts = 0;
3078 struct qla_tgt_cmd *cmd = prm->cmd;
3079 struct se_cmd *se_cmd = &cmd->se_cmd;
3081 struct atio_from_isp *atio = &prm->cmd->atio;
3082 struct qla_tc_param tc;
3084 scsi_qla_host_t *vha = cmd->vha;
3088 pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr;
3090 memset(pkt, 0, sizeof(*pkt));
3092 ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071,
3093 "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n",
3094 cmd->vp_idx, __func__, se_cmd, se_cmd->prot_op,
3095 prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba);
3097 if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) ||
3098 (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP))
3101 /* Compute dif len and adjust data len to incude protection */
3102 data_bytes = cmd->bufflen;
3103 dif_bytes = (data_bytes / cmd->blk_sz) * 8;
3105 switch (se_cmd->prot_op) {
3106 case TARGET_PROT_DIN_INSERT:
3107 case TARGET_PROT_DOUT_STRIP:
3108 transfer_length = data_bytes;
3109 if (cmd->prot_sg_cnt)
3110 data_bytes += dif_bytes;
3112 case TARGET_PROT_DIN_STRIP:
3113 case TARGET_PROT_DOUT_INSERT:
3114 case TARGET_PROT_DIN_PASS:
3115 case TARGET_PROT_DOUT_PASS:
3116 transfer_length = data_bytes + dif_bytes;
3123 if (!qlt_hba_err_chk_enabled(se_cmd))
3124 fw_prot_opts |= 0x10; /* Disable Guard tag checking */
3125 /* HBA error checking enabled */
3126 else if (IS_PI_UNINIT_CAPABLE(ha)) {
3127 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
3128 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
3129 fw_prot_opts |= PO_DIS_VALD_APP_ESC;
3130 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
3131 fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
3134 switch (se_cmd->prot_op) {
3135 case TARGET_PROT_DIN_INSERT:
3136 case TARGET_PROT_DOUT_INSERT:
3137 fw_prot_opts |= PO_MODE_DIF_INSERT;
3139 case TARGET_PROT_DIN_STRIP:
3140 case TARGET_PROT_DOUT_STRIP:
3141 fw_prot_opts |= PO_MODE_DIF_REMOVE;
3143 case TARGET_PROT_DIN_PASS:
3144 case TARGET_PROT_DOUT_PASS:
3145 fw_prot_opts |= PO_MODE_DIF_PASS;
3146 /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */
3148 default:/* Normal Request */
3149 fw_prot_opts |= PO_MODE_DIF_PASS;
3154 /* Update entry type to indicate Command Type CRC_2 IOCB */
3155 pkt->entry_type = CTIO_CRC2;
3156 pkt->entry_count = 1;
3157 pkt->vp_index = cmd->vp_idx;
3159 h = qlt_make_handle(qpair);
3160 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
3162 * CTIO type 7 from the firmware doesn't provide a way to
3163 * know the initiator's LOOP ID, hence we can't find
3164 * the session and, so, the command.
3168 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
3170 pkt->handle = make_handle(qpair->req->id, h);
3171 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
3172 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
3173 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3174 pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
3175 pkt->exchange_addr = atio->u.isp24.exchange_addr;
3177 /* silence compile warning */
3178 t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3179 pkt->ox_id = cpu_to_le16(t16);
3181 t16 = (atio->u.isp24.attr << 9);
3182 pkt->flags |= cpu_to_le16(t16);
3183 pkt->relative_offset = cpu_to_le32(prm->cmd->offset);
3185 /* Set transfer direction */
3186 if (cmd->dma_data_direction == DMA_TO_DEVICE)
3187 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN);
3188 else if (cmd->dma_data_direction == DMA_FROM_DEVICE)
3189 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT);
3191 pkt->dseg_count = cpu_to_le16(prm->tot_dsds);
3192 /* Fibre channel byte count */
3193 pkt->transfer_length = cpu_to_le32(transfer_length);
3195 /* ----- CRC context -------- */
3197 /* Allocate CRC context from global pool */
3198 crc_ctx_pkt = cmd->ctx =
3199 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
3202 goto crc_queuing_error;
3204 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
3205 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
3208 crc_ctx_pkt->handle = pkt->handle;
3210 qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts);
3212 put_unaligned_le64(crc_ctx_dma, &pkt->crc_context_address);
3213 pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW);
3216 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
3219 * Configure Bundling if we need to fetch interlaving
3220 * protection PCI accesses
3222 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
3223 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
3224 crc_ctx_pkt->u.bundling.dseg_count =
3225 cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt);
3226 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0];
3229 /* Finish the common fields of CRC pkt */
3230 crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz);
3231 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
3232 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
3233 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
3235 memset((uint8_t *)&tc, 0 , sizeof(tc));
3237 tc.blk_sz = cmd->blk_sz;
3238 tc.bufflen = cmd->bufflen;
3240 tc.prot_sg = cmd->prot_sg;
3241 tc.ctx = crc_ctx_pkt;
3242 tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced;
3244 /* Walks data segments */
3245 pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR);
3247 if (!bundling && prm->prot_seg_cnt) {
3248 if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd,
3249 prm->tot_dsds, &tc))
3250 goto crc_queuing_error;
3251 } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd,
3252 (prm->tot_dsds - prm->prot_seg_cnt), &tc))
3253 goto crc_queuing_error;
3255 if (bundling && prm->prot_seg_cnt) {
3256 /* Walks dif segments */
3257 pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA;
3259 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
3260 if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd,
3261 prm->prot_seg_cnt, cmd))
3262 goto crc_queuing_error;
3267 /* Cleanup will be performed by the caller */
3268 qpair->req->outstanding_cmds[h] = NULL;
3270 return QLA_FUNCTION_FAILED;
3274 * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and *
3275 * QLA_TGT_XMIT_STATUS for >= 24xx silicon
3277 int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
3278 uint8_t scsi_status)
3280 struct scsi_qla_host *vha = cmd->vha;
3281 struct qla_qpair *qpair = cmd->qpair;
3282 struct ctio7_to_24xx *pkt;
3283 struct qla_tgt_prm prm;
3284 uint32_t full_req_cnt = 0;
3285 unsigned long flags = 0;
3288 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3289 (cmd->sess && cmd->sess->deleted)) {
3290 cmd->state = QLA_TGT_STATE_PROCESSED;
3294 ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018,
3295 "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n",
3296 (xmit_type & QLA_TGT_XMIT_STATUS) ?
3297 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction,
3298 &cmd->se_cmd, qpair->id);
3300 res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
3302 if (unlikely(res != 0)) {
3306 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3308 if (xmit_type == QLA_TGT_XMIT_STATUS)
3309 qpair->tgt_counters.core_qla_snd_status++;
3311 qpair->tgt_counters.core_qla_que_buf++;
3313 if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) {
3315 * Either the port is not online or this request was from
3316 * previous life, just abort the processing.
3318 cmd->state = QLA_TGT_STATE_PROCESSED;
3319 ql_dbg_qp(ql_dbg_async, qpair, 0xe101,
3320 "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
3321 vha->flags.online, qla2x00_reset_active(vha),
3322 cmd->reset_count, qpair->chip_reset);
3323 goto out_unmap_unlock;
3326 /* Does F/W have an IOCBs for this request */
3327 res = qlt_check_reserve_free_req(qpair, full_req_cnt);
3329 goto out_unmap_unlock;
3331 if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA))
3332 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3334 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3335 if (unlikely(res != 0)) {
3336 qpair->req->cnt += full_req_cnt;
3337 goto out_unmap_unlock;
3340 pkt = (struct ctio7_to_24xx *)prm.pkt;
3342 if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
3343 pkt->u.status0.flags |=
3344 cpu_to_le16(CTIO7_FLAGS_DATA_IN |
3345 CTIO7_FLAGS_STATUS_MODE_0);
3347 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3348 qlt_load_data_segments(&prm);
3350 if (prm.add_status_pkt == 0) {
3351 if (xmit_type & QLA_TGT_XMIT_STATUS) {
3352 pkt->u.status0.scsi_status =
3353 cpu_to_le16(prm.rq_result);
3355 pkt->u.status0.residual =
3356 cpu_to_le32(prm.residual);
3358 pkt->u.status0.flags |= cpu_to_le16(
3359 CTIO7_FLAGS_SEND_STATUS);
3360 if (qlt_need_explicit_conf(cmd, 0)) {
3361 pkt->u.status0.flags |=
3363 CTIO7_FLAGS_EXPLICIT_CONFORM |
3364 CTIO7_FLAGS_CONFORM_REQ);
3370 * We have already made sure that there is sufficient
3371 * amount of request entries to not drop HW lock in
3374 struct ctio7_to_24xx *ctio =
3375 (struct ctio7_to_24xx *)qlt_get_req_pkt(
3378 ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e,
3379 "Building additional status packet 0x%p.\n",
3383 * T10Dif: ctio_crc2_to_fw overlay ontop of
3386 memcpy(ctio, pkt, sizeof(*ctio));
3387 /* reset back to CTIO7 */
3388 ctio->entry_count = 1;
3389 ctio->entry_type = CTIO_TYPE7;
3390 ctio->dseg_count = 0;
3391 ctio->u.status1.flags &= ~cpu_to_le16(
3392 CTIO7_FLAGS_DATA_IN);
3394 /* Real finish is ctio_m1's finish */
3395 pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
3396 pkt->u.status0.flags |= cpu_to_le16(
3397 CTIO7_FLAGS_DONT_RET_CTIO);
3399 /* qlt_24xx_init_ctio_to_isp will correct
3400 * all neccessary fields that's part of CTIO7.
3401 * There should be no residual of CTIO-CRC2 data.
3403 qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio,
3407 qlt_24xx_init_ctio_to_isp(pkt, &prm);
3410 cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */
3411 cmd->cmd_sent_to_fw = 1;
3412 cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
3414 /* Memory Barrier */
3416 if (qpair->reqq_start_iocbs)
3417 qpair->reqq_start_iocbs(qpair);
3419 qla2x00_start_iocbs(vha, qpair->req);
3420 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3425 qlt_unmap_sg(vha, cmd);
3426 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3430 EXPORT_SYMBOL(qlt_xmit_response);
3432 int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
3434 struct ctio7_to_24xx *pkt;
3435 struct scsi_qla_host *vha = cmd->vha;
3436 struct qla_tgt *tgt = cmd->tgt;
3437 struct qla_tgt_prm prm;
3438 unsigned long flags = 0;
3440 struct qla_qpair *qpair = cmd->qpair;
3442 memset(&prm, 0, sizeof(prm));
3448 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3449 (cmd->sess && cmd->sess->deleted)) {
3451 * Either the port is not online or this request was from
3452 * previous life, just abort the processing.
3455 cmd->write_data_transferred = 0;
3456 cmd->state = QLA_TGT_STATE_DATA_IN;
3457 vha->hw->tgt.tgt_ops->handle_data(cmd);
3458 ql_dbg_qp(ql_dbg_async, qpair, 0xe102,
3459 "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
3460 vha->flags.online, qla2x00_reset_active(vha),
3461 cmd->reset_count, qpair->chip_reset);
3465 /* Calculate number of entries and segments required */
3466 if (qlt_pci_map_calc_cnt(&prm) != 0)
3469 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3470 /* Does F/W have an IOCBs for this request */
3471 res = qlt_check_reserve_free_req(qpair, prm.req_cnt);
3473 goto out_unlock_free_unmap;
3474 if (cmd->se_cmd.prot_op)
3475 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3477 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3479 if (unlikely(res != 0)) {
3480 qpair->req->cnt += prm.req_cnt;
3481 goto out_unlock_free_unmap;
3484 pkt = (struct ctio7_to_24xx *)prm.pkt;
3485 pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
3486 CTIO7_FLAGS_STATUS_MODE_0);
3488 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3489 qlt_load_data_segments(&prm);
3491 cmd->state = QLA_TGT_STATE_NEED_DATA;
3492 cmd->cmd_sent_to_fw = 1;
3493 cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
3495 /* Memory Barrier */
3497 if (qpair->reqq_start_iocbs)
3498 qpair->reqq_start_iocbs(qpair);
3500 qla2x00_start_iocbs(vha, qpair->req);
3501 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3505 out_unlock_free_unmap:
3506 qlt_unmap_sg(vha, cmd);
3507 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3511 EXPORT_SYMBOL(qlt_rdy_to_xfer);
3515 * it is assumed either hardware_lock or qpair lock is held.
3518 qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
3519 struct ctio_crc_from_fw *sts)
3521 uint8_t *ap = &sts->actual_dif[0];
3522 uint8_t *ep = &sts->expected_dif[0];
3523 uint64_t lba = cmd->se_cmd.t_task_lba;
3524 uint8_t scsi_status, sense_key, asc, ascq;
3525 unsigned long flags;
3526 struct scsi_qla_host *vha = cmd->vha;
3528 cmd->trc_flags |= TRC_DIF_ERR;
3530 cmd->a_guard = get_unaligned_be16(ap + 0);
3531 cmd->a_app_tag = get_unaligned_be16(ap + 2);
3532 cmd->a_ref_tag = get_unaligned_be32(ap + 4);
3534 cmd->e_guard = get_unaligned_be16(ep + 0);
3535 cmd->e_app_tag = get_unaligned_be16(ep + 2);
3536 cmd->e_ref_tag = get_unaligned_be32(ep + 4);
3538 ql_dbg(ql_dbg_tgt_dif, vha, 0xf075,
3539 "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state);
3541 scsi_status = sense_key = asc = ascq = 0;
3543 /* check appl tag */
3544 if (cmd->e_app_tag != cmd->a_app_tag) {
3545 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d,
3546 "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]",
3547 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3548 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3549 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3550 cmd->atio.u.isp24.fcp_hdr.ox_id);
3552 cmd->dif_err_code = DIF_ERR_APP;
3553 scsi_status = SAM_STAT_CHECK_CONDITION;
3554 sense_key = ABORTED_COMMAND;
3560 if (cmd->e_ref_tag != cmd->a_ref_tag) {
3561 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e,
3562 "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] ",
3563 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3564 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3565 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3566 cmd->atio.u.isp24.fcp_hdr.ox_id);
3568 cmd->dif_err_code = DIF_ERR_REF;
3569 scsi_status = SAM_STAT_CHECK_CONDITION;
3570 sense_key = ABORTED_COMMAND;
3577 if (cmd->e_guard != cmd->a_guard) {
3578 ql_dbg(ql_dbg_tgt_dif, vha, 0xe012,
3579 "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]",
3580 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3581 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3582 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3583 cmd->atio.u.isp24.fcp_hdr.ox_id);
3585 cmd->dif_err_code = DIF_ERR_GRD;
3586 scsi_status = SAM_STAT_CHECK_CONDITION;
3587 sense_key = ABORTED_COMMAND;
3592 switch (cmd->state) {
3593 case QLA_TGT_STATE_NEED_DATA:
3594 /* handle_data will load DIF error code */
3595 cmd->state = QLA_TGT_STATE_DATA_IN;
3596 vha->hw->tgt.tgt_ops->handle_data(cmd);
3599 spin_lock_irqsave(&cmd->cmd_lock, flags);
3601 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3602 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3605 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3607 qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc,
3609 /* assume scsi status gets out on the wire.
3610 * Will not wait for completion.
3612 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3617 /* If hardware_lock held on entry, might drop it, then reaquire */
3618 /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */
3619 static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3620 struct imm_ntfy_from_isp *ntfy)
3622 struct nack_to_isp *nack;
3623 struct qla_hw_data *ha = vha->hw;
3627 ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c,
3628 "Sending TERM ELS CTIO (ha=%p)\n", ha);
3630 pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
3632 ql_dbg(ql_dbg_tgt, vha, 0xe080,
3633 "qla_target(%d): %s failed: unable to allocate "
3634 "request packet\n", vha->vp_idx, __func__);
3638 pkt->entry_type = NOTIFY_ACK_TYPE;
3639 pkt->entry_count = 1;
3640 pkt->handle = QLA_TGT_SKIP_HANDLE;
3642 nack = (struct nack_to_isp *)pkt;
3643 nack->ox_id = ntfy->ox_id;
3645 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3646 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3647 nack->u.isp24.flags = ntfy->u.isp24.flags &
3648 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
3652 nack->u.isp24.flags |=
3653 __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE);
3655 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3656 nack->u.isp24.status = ntfy->u.isp24.status;
3657 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3658 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3659 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3660 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3661 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3662 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3664 qla2x00_start_iocbs(vha, vha->req);
3668 static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3669 struct imm_ntfy_from_isp *imm, int ha_locked)
3673 WARN_ON_ONCE(!ha_locked);
3674 rc = __qlt_send_term_imm_notif(vha, imm);
3675 pr_debug("rc = %d\n", rc);
3679 * If hardware_lock held on entry, might drop it, then reaquire
3680 * This function sends the appropriate CTIO to ISP 2xxx or 24xx
3682 static int __qlt_send_term_exchange(struct qla_qpair *qpair,
3683 struct qla_tgt_cmd *cmd,
3684 struct atio_from_isp *atio)
3686 struct scsi_qla_host *vha = qpair->vha;
3687 struct ctio7_to_24xx *ctio24;
3688 struct qla_hw_data *ha = vha->hw;
3693 ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha);
3698 pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL);
3700 ql_dbg(ql_dbg_tgt, vha, 0xe050,
3701 "qla_target(%d): %s failed: unable to allocate "
3702 "request packet\n", vha->vp_idx, __func__);
3707 if (cmd->state < QLA_TGT_STATE_PROCESSED) {
3708 ql_dbg(ql_dbg_tgt, vha, 0xe051,
3709 "qla_target(%d): Terminating cmd %p with "
3710 "incorrect state %d\n", vha->vp_idx, cmd,
3716 qpair->tgt_counters.num_term_xchg_sent++;
3717 pkt->entry_count = 1;
3718 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
3720 ctio24 = (struct ctio7_to_24xx *)pkt;
3721 ctio24->entry_type = CTIO_TYPE7;
3722 ctio24->nport_handle = cpu_to_le16(CTIO7_NHANDLE_UNRECOGNIZED);
3723 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3724 ctio24->vp_index = vha->vp_idx;
3725 ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
3726 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
3727 temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 |
3728 CTIO7_FLAGS_TERMINATE;
3729 ctio24->u.status1.flags = cpu_to_le16(temp);
3730 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3731 ctio24->u.status1.ox_id = cpu_to_le16(temp);
3733 /* Memory Barrier */
3735 if (qpair->reqq_start_iocbs)
3736 qpair->reqq_start_iocbs(qpair);
3738 qla2x00_start_iocbs(vha, qpair->req);
3742 static void qlt_send_term_exchange(struct qla_qpair *qpair,
3743 struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked,
3746 struct scsi_qla_host *vha;
3747 unsigned long flags = 0;
3750 /* why use different vha? NPIV */
3757 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3759 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3762 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3763 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3765 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3768 if (cmd && !ul_abort && !cmd->aborted) {
3770 qlt_unmap_sg(vha, cmd);
3771 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3775 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3780 static void qlt_init_term_exchange(struct scsi_qla_host *vha)
3782 struct list_head free_list;
3783 struct qla_tgt_cmd *cmd, *tcmd;
3785 vha->hw->tgt.leak_exchg_thresh_hold =
3786 (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT;
3789 if (!list_empty(&vha->hw->tgt.q_full_list)) {
3790 INIT_LIST_HEAD(&free_list);
3791 list_splice_init(&vha->hw->tgt.q_full_list, &free_list);
3793 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
3794 list_del(&cmd->cmd_list);
3795 /* This cmd was never sent to TCM. There is no need
3796 * to schedule free or call free_cmd
3799 vha->hw->tgt.num_qfull_cmds_alloc--;
3802 vha->hw->tgt.num_qfull_cmds_dropped = 0;
3805 static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha)
3807 uint32_t total_leaked;
3809 total_leaked = vha->hw->tgt.num_qfull_cmds_dropped;
3811 if (vha->hw->tgt.leak_exchg_thresh_hold &&
3812 (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) {
3814 ql_dbg(ql_dbg_tgt, vha, 0xe079,
3815 "Chip reset due to exchange starvation: %d/%d.\n",
3816 total_leaked, vha->hw->cur_fw_xcb_count);
3818 if (IS_P3P_TYPE(vha->hw))
3819 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3821 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3822 qla2xxx_wake_dpc(vha);
3827 int qlt_abort_cmd(struct qla_tgt_cmd *cmd)
3829 struct qla_tgt *tgt = cmd->tgt;
3830 struct scsi_qla_host *vha = tgt->vha;
3831 struct se_cmd *se_cmd = &cmd->se_cmd;
3832 unsigned long flags;
3834 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
3835 "qla_target(%d): terminating exchange for aborted cmd=%p "
3836 "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd,
3839 spin_lock_irqsave(&cmd->cmd_lock, flags);
3841 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3843 * It's normal to see 2 calls in this path:
3844 * 1) XFER Rdy completion + CMD_T_ABORT
3845 * 2) TCM TMR - drain_state_list
3847 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016,
3848 "multiple abort. %p transport_state %x, t_state %x, "
3849 "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state,
3850 cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags);
3854 cmd->trc_flags |= TRC_ABORT;
3855 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3857 qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1);
3860 EXPORT_SYMBOL(qlt_abort_cmd);
3862 void qlt_free_cmd(struct qla_tgt_cmd *cmd)
3864 struct fc_port *sess = cmd->sess;
3866 ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074,
3867 "%s: se_cmd[%p] ox_id %04x\n",
3868 __func__, &cmd->se_cmd,
3869 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
3871 BUG_ON(cmd->cmd_in_wq);
3874 qlt_decr_num_pend_cmds(cmd->vha);
3876 BUG_ON(cmd->sg_mapped);
3877 cmd->jiffies_at_free = get_jiffies_64();
3878 if (unlikely(cmd->free_sg))
3881 if (!sess || !sess->se_sess) {
3885 cmd->jiffies_at_free = get_jiffies_64();
3886 cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
3888 EXPORT_SYMBOL(qlt_free_cmd);
3891 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3893 static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio,
3894 struct qla_tgt_cmd *cmd, uint32_t status)
3897 struct scsi_qla_host *vha = qpair->vha;
3899 if (cmd->se_cmd.prot_op)
3900 ql_dbg(ql_dbg_tgt_dif, vha, 0xe013,
3901 "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] "
3902 "se_cmd=%p tag[%x] op %#x/%s",
3904 cmd->num_blks, &cmd->se_cmd,
3905 cmd->atio.u.isp24.exchange_addr,
3906 cmd->se_cmd.prot_op,
3907 prot_op_str(cmd->se_cmd.prot_op));
3910 struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
3913 cpu_to_le16(OF_TERM_EXCH));
3918 qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0);
3924 /* ha->hardware_lock supposed to be held on entry */
3925 static void *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
3926 struct rsp_que *rsp, uint32_t handle, void *ctio)
3929 struct req_que *req;
3930 int qid = GET_QID(handle);
3931 uint32_t h = handle & ~QLA_TGT_HANDLE_MASK;
3933 if (unlikely(h == QLA_TGT_SKIP_HANDLE))
3936 if (qid == rsp->req->id) {
3938 } else if (vha->hw->req_q_map[qid]) {
3939 ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a,
3940 "qla_target(%d): CTIO completion with different QID %d handle %x\n",
3941 vha->vp_idx, rsp->id, handle);
3942 req = vha->hw->req_q_map[qid];
3947 h &= QLA_CMD_HANDLE_MASK;
3949 if (h != QLA_TGT_NULL_HANDLE) {
3950 if (unlikely(h >= req->num_outstanding_cmds)) {
3951 ql_dbg(ql_dbg_tgt, vha, 0xe052,
3952 "qla_target(%d): Wrong handle %x received\n",
3953 vha->vp_idx, handle);
3957 cmd = req->outstanding_cmds[h];
3958 if (unlikely(cmd == NULL)) {
3959 ql_dbg(ql_dbg_async, vha, 0xe053,
3960 "qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n",
3961 vha->vp_idx, handle, req->id, rsp->id);
3964 req->outstanding_cmds[h] = NULL;
3965 } else if (ctio != NULL) {
3966 /* We can't get loop ID from CTIO7 */
3967 ql_dbg(ql_dbg_tgt, vha, 0xe054,
3968 "qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
3969 "support NULL handles\n", vha->vp_idx);
3977 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3979 static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
3980 struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio)
3982 struct qla_hw_data *ha = vha->hw;
3983 struct se_cmd *se_cmd;
3984 struct qla_tgt_cmd *cmd;
3985 struct qla_qpair *qpair = rsp->qpair;
3987 if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
3988 /* That could happen only in case of an error/reset/abort */
3989 if (status != CTIO_SUCCESS) {
3990 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
3991 "Intermediate CTIO received"
3992 " (status %x)\n", status);
3997 cmd = qlt_ctio_to_cmd(vha, rsp, handle, ctio);
4001 if ((le16_to_cpu(((struct ctio7_from_24xx *)ctio)->flags) & CTIO7_FLAGS_DATA_OUT) &&
4003 qlt_chk_edif_rx_sa_delete_pending(vha, cmd->sess,
4004 (struct ctio7_from_24xx *)ctio);
4007 se_cmd = &cmd->se_cmd;
4008 cmd->cmd_sent_to_fw = 0;
4010 qlt_unmap_sg(vha, cmd);
4012 if (unlikely(status != CTIO_SUCCESS)) {
4013 switch (status & 0xFFFF) {
4014 case CTIO_INVALID_RX_ID:
4015 if (printk_ratelimit())
4016 dev_info(&vha->hw->pdev->dev,
4017 "qla_target(%d): CTIO with INVALID_RX_ID ATIO attr %x CTIO Flags %x|%x\n",
4018 vha->vp_idx, cmd->atio.u.isp24.attr,
4019 ((cmd->ctio_flags >> 9) & 0xf),
4023 case CTIO_LIP_RESET:
4024 case CTIO_TARGET_RESET:
4026 /* driver request abort via Terminate exchange */
4029 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
4030 "qla_target(%d): CTIO with "
4031 "status %#x received, state %x, se_cmd %p, "
4032 "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
4033 "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx,
4034 status, cmd->state, se_cmd);
4037 case CTIO_PORT_LOGGED_OUT:
4038 case CTIO_PORT_UNAVAILABLE:
4041 (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT;
4043 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
4044 "qla_target(%d): CTIO with %s status %x "
4045 "received (state %x, se_cmd %p)\n", vha->vp_idx,
4046 logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
4047 status, cmd->state, se_cmd);
4049 if (logged_out && cmd->sess) {
4051 * Session is already logged out, but we need
4052 * to notify initiator, who's not aware of this
4054 cmd->sess->send_els_logo = 1;
4055 ql_dbg(ql_dbg_disc, vha, 0x20f8,
4056 "%s %d %8phC post del sess\n",
4057 __func__, __LINE__, cmd->sess->port_name);
4059 qlt_schedule_sess_for_deletion(cmd->sess);
4063 case CTIO_DIF_ERROR: {
4064 struct ctio_crc_from_fw *crc =
4065 (struct ctio_crc_from_fw *)ctio;
4066 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073,
4067 "qla_target(%d): CTIO with DIF_ERROR status %x "
4068 "received (state %x, ulp_cmd %p) actual_dif[0x%llx] "
4069 "expect_dif[0x%llx]\n",
4070 vha->vp_idx, status, cmd->state, se_cmd,
4071 *((u64 *)&crc->actual_dif[0]),
4072 *((u64 *)&crc->expected_dif[0]));
4074 qlt_handle_dif_error(qpair, cmd, ctio);
4078 case CTIO_FAST_AUTH_ERR:
4079 case CTIO_FAST_INCOMP_PAD_LEN:
4080 case CTIO_FAST_INVALID_REQ:
4081 case CTIO_FAST_SPI_ERR:
4082 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
4083 "qla_target(%d): CTIO with EDIF error status 0x%x received (state %x, se_cmd %p\n",
4084 vha->vp_idx, status, cmd->state, se_cmd);
4088 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
4089 "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n",
4090 vha->vp_idx, status, cmd->state, se_cmd);
4095 /* "cmd->aborted" means
4096 * cmd is already aborted/terminated, we don't
4097 * need to terminate again. The exchange is already
4098 * cleaned up/freed at FW level. Just cleanup at driver
4101 if ((cmd->state != QLA_TGT_STATE_NEED_DATA) &&
4103 cmd->trc_flags |= TRC_CTIO_ERR;
4104 if (qlt_term_ctio_exchange(qpair, ctio, cmd, status))
4109 if (cmd->state == QLA_TGT_STATE_PROCESSED) {
4110 cmd->trc_flags |= TRC_CTIO_DONE;
4111 } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
4112 cmd->state = QLA_TGT_STATE_DATA_IN;
4114 if (status == CTIO_SUCCESS)
4115 cmd->write_data_transferred = 1;
4117 ha->tgt.tgt_ops->handle_data(cmd);
4119 } else if (cmd->aborted) {
4120 cmd->trc_flags |= TRC_CTIO_ABORTED;
4121 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
4122 "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
4124 cmd->trc_flags |= TRC_CTIO_STRANGE;
4125 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
4126 "qla_target(%d): A command in state (%d) should "
4127 "not return a CTIO complete\n", vha->vp_idx, cmd->state);
4130 if (unlikely(status != CTIO_SUCCESS) &&
4132 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n");
4136 ha->tgt.tgt_ops->free_cmd(cmd);
4139 static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
4144 switch (task_codes) {
4145 case ATIO_SIMPLE_QUEUE:
4146 fcp_task_attr = TCM_SIMPLE_TAG;
4148 case ATIO_HEAD_OF_QUEUE:
4149 fcp_task_attr = TCM_HEAD_TAG;
4151 case ATIO_ORDERED_QUEUE:
4152 fcp_task_attr = TCM_ORDERED_TAG;
4154 case ATIO_ACA_QUEUE:
4155 fcp_task_attr = TCM_ACA_TAG;
4158 fcp_task_attr = TCM_SIMPLE_TAG;
4161 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
4162 "qla_target: unknown task code %x, use ORDERED instead\n",
4164 fcp_task_attr = TCM_ORDERED_TAG;
4168 return fcp_task_attr;
4172 * Process context for I/O path into tcm_qla2xxx code
4174 static void __qlt_do_work(struct qla_tgt_cmd *cmd)
4176 scsi_qla_host_t *vha = cmd->vha;
4177 struct qla_hw_data *ha = vha->hw;
4178 struct fc_port *sess = cmd->sess;
4179 struct atio_from_isp *atio = &cmd->atio;
4181 unsigned long flags;
4182 uint32_t data_length;
4183 int ret, fcp_task_attr, data_dir, bidi = 0;
4184 struct qla_qpair *qpair = cmd->qpair;
4187 cmd->trc_flags |= TRC_DO_WORK;
4190 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082,
4191 "cmd with tag %u is aborted\n",
4192 cmd->atio.u.isp24.exchange_addr);
4196 spin_lock_init(&cmd->cmd_lock);
4197 cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
4198 cmd->se_cmd.tag = le32_to_cpu(atio->u.isp24.exchange_addr);
4200 if (atio->u.isp24.fcp_cmnd.rddata &&
4201 atio->u.isp24.fcp_cmnd.wrdata) {
4203 data_dir = DMA_TO_DEVICE;
4204 } else if (atio->u.isp24.fcp_cmnd.rddata)
4205 data_dir = DMA_FROM_DEVICE;
4206 else if (atio->u.isp24.fcp_cmnd.wrdata)
4207 data_dir = DMA_TO_DEVICE;
4209 data_dir = DMA_NONE;
4211 fcp_task_attr = qlt_get_fcp_task_attr(vha,
4212 atio->u.isp24.fcp_cmnd.task_attr);
4213 data_length = get_datalen_for_atio(atio);
4215 ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length,
4216 fcp_task_attr, data_dir, bidi);
4220 * Drop extra session reference from qlt_handle_cmd_for_atio().
4222 ha->tgt.tgt_ops->put_sess(sess);
4226 ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd);
4228 * cmd has not sent to target yet, so pass NULL as the second
4229 * argument to qlt_send_term_exchange() and free the memory here.
4231 cmd->trc_flags |= TRC_DO_WORK_ERR;
4232 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
4233 qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0);
4235 qlt_decr_num_pend_cmds(vha);
4236 cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
4237 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
4239 ha->tgt.tgt_ops->put_sess(sess);
4242 static void qlt_do_work(struct work_struct *work)
4244 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
4245 scsi_qla_host_t *vha = cmd->vha;
4246 unsigned long flags;
4248 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4249 list_del(&cmd->cmd_list);
4250 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4255 void qlt_clr_qp_table(struct scsi_qla_host *vha)
4257 unsigned long flags;
4258 struct qla_hw_data *ha = vha->hw;
4259 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4263 ql_log(ql_log_info, vha, 0x706c,
4264 "User update Number of Active Qpairs %d\n",
4265 ha->tgt.num_act_qpairs);
4267 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4269 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
4270 btree_remove64(&tgt->lun_qpair_map, key);
4272 ha->base_qpair->lun_cnt = 0;
4273 for (key = 0; key < ha->max_qpairs; key++)
4274 if (ha->queue_pair_map[key])
4275 ha->queue_pair_map[key]->lun_cnt = 0;
4277 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4280 static void qlt_assign_qpair(struct scsi_qla_host *vha,
4281 struct qla_tgt_cmd *cmd)
4283 struct qla_qpair *qpair, *qp;
4284 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4285 struct qla_qpair_hint *h;
4287 if (vha->flags.qpairs_available) {
4288 h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun);
4290 /* spread lun to qpair ratio evently */
4292 struct scsi_qla_host *base_vha =
4293 pci_get_drvdata(vha->hw->pdev);
4295 qpair = vha->hw->base_qpair;
4296 if (qpair->lun_cnt == 0) {
4298 h = qla_qpair_to_hint(tgt, qpair);
4300 rc = btree_insert64(&tgt->lun_qpair_map,
4301 cmd->unpacked_lun, h, GFP_ATOMIC);
4304 ql_log(ql_log_info, vha, 0xd037,
4305 "Unable to insert lun %llx into lun_qpair_map\n",
4310 lcnt = qpair->lun_cnt;
4314 list_for_each_entry(qp, &base_vha->qp_list,
4316 if (qp->lun_cnt == 0) {
4318 h = qla_qpair_to_hint(tgt, qp);
4320 rc = btree_insert64(&tgt->lun_qpair_map,
4321 cmd->unpacked_lun, h, GFP_ATOMIC);
4324 ql_log(ql_log_info, vha, 0xd038,
4325 "Unable to insert lun %llx into lun_qpair_map\n",
4331 if (qp->lun_cnt < lcnt) {
4340 h = qla_qpair_to_hint(tgt, qpair);
4342 rc = btree_insert64(&tgt->lun_qpair_map,
4343 cmd->unpacked_lun, h, GFP_ATOMIC);
4346 ql_log(ql_log_info, vha, 0xd039,
4347 "Unable to insert lun %llx into lun_qpair_map\n",
4352 h = &tgt->qphints[0];
4355 cmd->qpair = h->qpair;
4356 cmd->se_cmd.cpuid = h->cpuid;
4359 static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
4360 struct fc_port *sess,
4361 struct atio_from_isp *atio)
4363 struct qla_tgt_cmd *cmd;
4365 cmd = vha->hw->tgt.tgt_ops->get_cmd(sess);
4369 cmd->cmd_type = TYPE_TGT_CMD;
4370 memcpy(&cmd->atio, atio, sizeof(*atio));
4371 INIT_LIST_HEAD(&cmd->sess_cmd_list);
4372 cmd->state = QLA_TGT_STATE_NEW;
4373 cmd->tgt = vha->vha_tgt.qla_tgt;
4374 qlt_incr_num_pend_cmds(vha);
4377 cmd->loop_id = sess->loop_id;
4378 cmd->conf_compl_supported = sess->conf_compl_supported;
4381 cmd->jiffies_at_alloc = get_jiffies_64();
4383 cmd->unpacked_lun = scsilun_to_int(
4384 (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
4385 qlt_assign_qpair(vha, cmd);
4386 cmd->reset_count = vha->hw->base_qpair->chip_reset;
4387 cmd->vp_idx = vha->vp_idx;
4388 cmd->edif = sess->edif.enable;
4393 /* ha->hardware_lock supposed to be held on entry */
4394 static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
4395 struct atio_from_isp *atio)
4397 struct qla_hw_data *ha = vha->hw;
4398 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4399 struct fc_port *sess;
4400 struct qla_tgt_cmd *cmd;
4401 unsigned long flags;
4404 if (unlikely(tgt->tgt_stop)) {
4405 ql_dbg(ql_dbg_io, vha, 0x3061,
4406 "New command while device %p is shutting down\n", tgt);
4410 id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
4411 if (IS_SW_RESV_ADDR(id))
4414 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
4415 if (unlikely(!sess))
4418 /* Another WWN used to have our s_id. Our PLOGI scheduled its
4419 * session deletion, but it's still in sess_del_work wq */
4420 if (sess->deleted) {
4421 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
4422 "New command while old session %p is being deleted\n",
4428 * Do kref_get() before returning + dropping qla_hw_data->hardware_lock.
4430 if (!kref_get_unless_zero(&sess->sess_kref)) {
4431 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
4432 "%s: kref_get fail, %8phC oxid %x \n",
4433 __func__, sess->port_name,
4434 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
4438 cmd = qlt_get_tag(vha, sess, atio);
4440 ql_dbg(ql_dbg_io, vha, 0x3062,
4441 "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
4442 ha->tgt.tgt_ops->put_sess(sess);
4447 cmd->trc_flags |= TRC_NEW_CMD;
4449 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4450 list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);
4451 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4453 INIT_WORK(&cmd->work, qlt_do_work);
4454 if (vha->flags.qpairs_available) {
4455 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work);
4456 } else if (ha->msix_count) {
4457 if (cmd->atio.u.isp24.fcp_cmnd.rddata)
4458 queue_work_on(smp_processor_id(), qla_tgt_wq,
4461 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq,
4464 queue_work(qla_tgt_wq, &cmd->work);
4470 /* ha->hardware_lock supposed to be held on entry */
4471 static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
4472 int fn, void *iocb, int flags)
4474 struct scsi_qla_host *vha = sess->vha;
4475 struct qla_hw_data *ha = vha->hw;
4476 struct qla_tgt_mgmt_cmd *mcmd;
4477 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4478 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
4480 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4482 ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009,
4483 "qla_target(%d): Allocation of management "
4484 "command failed, some commands and their data could "
4485 "leak\n", vha->vp_idx);
4488 memset(mcmd, 0, sizeof(*mcmd));
4492 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4493 sizeof(mcmd->orig_iocb.imm_ntfy));
4495 mcmd->tmr_func = fn;
4496 mcmd->flags = flags;
4497 mcmd->reset_count = ha->base_qpair->chip_reset;
4498 mcmd->qpair = h->qpair;
4500 mcmd->se_cmd.cpuid = h->cpuid;
4501 mcmd->unpacked_lun = lun;
4504 case QLA_TGT_LUN_RESET:
4505 case QLA_TGT_CLEAR_TS:
4506 case QLA_TGT_ABORT_TS:
4507 abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id);
4509 case QLA_TGT_CLEAR_ACA:
4510 h = qlt_find_qphint(vha, mcmd->unpacked_lun);
4511 mcmd->qpair = h->qpair;
4512 mcmd->se_cmd.cpuid = h->cpuid;
4515 case QLA_TGT_TARGET_RESET:
4516 case QLA_TGT_NEXUS_LOSS_SESS:
4517 case QLA_TGT_NEXUS_LOSS:
4518 case QLA_TGT_ABORT_ALL:
4524 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
4525 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq,
4531 /* ha->hardware_lock supposed to be held on entry */
4532 static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
4534 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4535 struct qla_hw_data *ha = vha->hw;
4536 struct fc_port *sess;
4539 unsigned long flags;
4541 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
4543 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4544 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
4545 a->u.isp24.fcp_hdr.s_id);
4546 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4549 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4551 if (sess == NULL || sess->deleted)
4554 return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
4557 /* ha->hardware_lock supposed to be held on entry */
4558 static int __qlt_abort_task(struct scsi_qla_host *vha,
4559 struct imm_ntfy_from_isp *iocb, struct fc_port *sess)
4561 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4562 struct qla_hw_data *ha = vha->hw;
4563 struct qla_tgt_mgmt_cmd *mcmd;
4567 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4569 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f,
4570 "qla_target(%d): %s: Allocation of ABORT cmd failed\n",
4571 vha->vp_idx, __func__);
4574 memset(mcmd, 0, sizeof(*mcmd));
4577 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4578 sizeof(mcmd->orig_iocb.imm_ntfy));
4581 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4582 mcmd->reset_count = ha->base_qpair->chip_reset;
4583 mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK;
4584 mcmd->qpair = ha->base_qpair;
4586 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func,
4587 le16_to_cpu(iocb->u.isp2x.seq_id));
4589 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060,
4590 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
4592 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
4599 /* ha->hardware_lock supposed to be held on entry */
4600 static int qlt_abort_task(struct scsi_qla_host *vha,
4601 struct imm_ntfy_from_isp *iocb)
4603 struct qla_hw_data *ha = vha->hw;
4604 struct fc_port *sess;
4606 unsigned long flags;
4608 loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb);
4610 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4611 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
4612 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4615 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025,
4616 "qla_target(%d): task abort for unexisting "
4617 "session\n", vha->vp_idx);
4618 return qlt_sched_sess_work(vha->vha_tgt.qla_tgt,
4619 QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb));
4622 return __qlt_abort_task(vha, iocb, sess);
4625 void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
4627 if (rc != MBS_COMMAND_COMPLETE) {
4628 ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093,
4629 "%s: se_sess %p / sess %p from"
4630 " port %8phC loop_id %#04x s_id %02x:%02x:%02x"
4631 " LOGO failed: %#x\n",
4635 fcport->port_name, fcport->loop_id,
4636 fcport->d_id.b.domain, fcport->d_id.b.area,
4637 fcport->d_id.b.al_pa, rc);
4640 fcport->logout_completed = 1;
4644 * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list)
4646 * Schedules sessions with matching port_id/loop_id but different wwn for
4647 * deletion. Returns existing session with matching wwn if present.
4651 qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
4652 port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess)
4654 struct fc_port *sess = NULL, *other_sess;
4657 *conflict_sess = NULL;
4659 list_for_each_entry(other_sess, &vha->vp_fcports, list) {
4661 other_wwn = wwn_to_u64(other_sess->port_name);
4663 if (wwn == other_wwn) {
4669 /* find other sess with nport_id collision */
4670 if (port_id.b24 == other_sess->d_id.b24) {
4671 if (loop_id != other_sess->loop_id) {
4672 ql_dbg(ql_dbg_disc, vha, 0x1000c,
4673 "Invalidating sess %p loop_id %d wwn %llx.\n",
4674 other_sess, other_sess->loop_id, other_wwn);
4677 * logout_on_delete is set by default, but another
4678 * session that has the same s_id/loop_id combo
4679 * might have cleared it when requested this session
4680 * deletion, so don't touch it
4682 qlt_schedule_sess_for_deletion(other_sess);
4685 * Another wwn used to have our s_id/loop_id
4686 * kill the session, but don't free the loop_id
4688 ql_dbg(ql_dbg_disc, vha, 0xf01b,
4689 "Invalidating sess %p loop_id %d wwn %llx.\n",
4690 other_sess, other_sess->loop_id, other_wwn);
4692 other_sess->keep_nport_handle = 1;
4693 if (other_sess->disc_state != DSC_DELETED)
4694 *conflict_sess = other_sess;
4695 qlt_schedule_sess_for_deletion(other_sess);
4700 /* find other sess with nport handle collision */
4701 if ((loop_id == other_sess->loop_id) &&
4702 (loop_id != FC_NO_LOOP_ID)) {
4703 ql_dbg(ql_dbg_disc, vha, 0x1000d,
4704 "Invalidating sess %p loop_id %d wwn %llx.\n",
4705 other_sess, other_sess->loop_id, other_wwn);
4707 /* Same loop_id but different s_id
4708 * Ok to kill and logout */
4709 qlt_schedule_sess_for_deletion(other_sess);
4716 /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */
4717 static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
4719 struct qla_tgt_sess_op *op;
4720 struct qla_tgt_cmd *cmd;
4723 unsigned long flags;
4725 key = (((u32)s_id->b.domain << 16) |
4726 ((u32)s_id->b.area << 8) |
4727 ((u32)s_id->b.al_pa));
4729 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4730 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
4731 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4733 if (op_key == key) {
4739 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
4740 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4742 if (op_key == key) {
4748 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
4749 uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
4751 if (cmd_key == key) {
4756 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4761 static int qlt_handle_login(struct scsi_qla_host *vha,
4762 struct imm_ntfy_from_isp *iocb)
4764 struct fc_port *sess = NULL, *conflict_sess = NULL;
4767 uint16_t loop_id, wd3_lo;
4769 struct qlt_plogi_ack_t *pla;
4770 unsigned long flags;
4772 lockdep_assert_held(&vha->hw->hardware_lock);
4774 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4776 port_id.b.domain = iocb->u.isp24.port_id[2];
4777 port_id.b.area = iocb->u.isp24.port_id[1];
4778 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4779 port_id.b.rsvd_1 = 0;
4781 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4783 /* Mark all stale commands sitting in qla_tgt_wq for deletion */
4784 abort_cmds_for_s_id(vha, &port_id);
4787 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
4788 sess = qlt_find_sess_invalidate_other(vha, wwn,
4789 port_id, loop_id, &conflict_sess);
4790 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
4792 ql_dbg(ql_dbg_disc, vha, 0xffff,
4793 "%s %d Term INOT due to WWN=0 lid=%d, NportID %06X ",
4794 __func__, __LINE__, loop_id, port_id.b24);
4795 qlt_send_term_imm_notif(vha, iocb, 1);
4799 if (IS_SW_RESV_ADDR(port_id)) {
4804 if (vha->hw->flags.edif_enabled &&
4805 !(vha->e_dbell.db_flags & EDB_ACTIVE) &&
4806 iocb->u.isp24.status_subcode == ELS_PLOGI &&
4807 !(le16_to_cpu(iocb->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
4808 ql_dbg(ql_dbg_disc, vha, 0xffff,
4809 "%s %d Term INOT due to app not available lid=%d, NportID %06X ",
4810 __func__, __LINE__, loop_id, port_id.b24);
4811 qlt_send_term_imm_notif(vha, iocb, 1);
4815 if (vha->hw->flags.edif_enabled) {
4816 if (DBELL_INACTIVE(vha)) {
4817 ql_dbg(ql_dbg_disc, vha, 0xffff,
4818 "%s %d Term INOT due to app not started lid=%d, NportID %06X ",
4819 __func__, __LINE__, loop_id, port_id.b24);
4820 qlt_send_term_imm_notif(vha, iocb, 1);
4822 } else if (iocb->u.isp24.status_subcode == ELS_PLOGI &&
4823 !(le16_to_cpu(iocb->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
4824 ql_dbg(ql_dbg_disc, vha, 0xffff,
4825 "%s %d Term INOT due to unsecure lid=%d, NportID %06X ",
4826 __func__, __LINE__, loop_id, port_id.b24);
4827 qlt_send_term_imm_notif(vha, iocb, 1);
4832 pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
4834 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
4835 "%s %d %8phC Term INOT due to mem alloc fail",
4837 iocb->u.isp24.port_name);
4838 qlt_send_term_imm_notif(vha, iocb, 1);
4842 if (conflict_sess) {
4843 conflict_sess->login_gen++;
4844 qlt_plogi_ack_link(vha, pla, conflict_sess,
4845 QLT_PLOGI_LINK_CONFLICT);
4850 ql_dbg(ql_dbg_disc, vha, 0xffff,
4851 "%s %d %8phC post new sess\n",
4852 __func__, __LINE__, iocb->u.isp24.port_name);
4853 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
4854 qla24xx_post_newsess_work(vha, &port_id,
4855 iocb->u.isp24.port_name,
4856 iocb->u.isp24.u.plogi.node_name,
4859 qla24xx_post_newsess_work(vha, &port_id,
4860 iocb->u.isp24.port_name, NULL,
4866 if (sess->disc_state == DSC_UPD_FCPORT) {
4870 * Remote port registration is still going on from
4871 * previous login. Allow it to finish before we
4872 * accept the new login.
4874 sess->next_disc_state = DSC_DELETE_PEND;
4875 sec = jiffies_to_msecs(jiffies -
4876 sess->jiffies_at_registration) / 1000;
4877 if (sess->sec_since_registration < sec && sec &&
4879 sess->sec_since_registration = sec;
4880 ql_dbg(ql_dbg_disc, vha, 0xffff,
4881 "%s %8phC - Slow Rport registration (%d Sec)\n",
4882 __func__, sess->port_name, sec);
4885 if (!conflict_sess) {
4886 list_del(&pla->list);
4887 kmem_cache_free(qla_tgt_plogi_cachep, pla);
4890 qlt_send_term_imm_notif(vha, iocb, 1);
4894 qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
4895 sess->d_id = port_id;
4897 sess->loop_id = loop_id;
4899 if (iocb->u.isp24.status_subcode == ELS_PLOGI) {
4900 /* remote port has assigned Port ID */
4901 if (N2N_TOPO(vha->hw) && fcport_is_bigger(sess))
4902 vha->d_id = sess->d_id;
4904 ql_dbg(ql_dbg_disc, vha, 0xffff,
4905 "%s %8phC - send port online\n",
4906 __func__, sess->port_name);
4908 qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
4912 if (iocb->u.isp24.status_subcode == ELS_PRLI) {
4913 sess->fw_login_state = DSC_LS_PRLI_PEND;
4915 sess->loop_id = loop_id;
4916 sess->d_id = port_id;
4917 sess->fw_login_state = DSC_LS_PRLI_PEND;
4918 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4921 sess->conf_compl_supported = 1;
4923 if ((wd3_lo & BIT_4) == 0)
4924 sess->port_type = FCT_INITIATOR;
4926 sess->port_type = FCT_TARGET;
4929 sess->fw_login_state = DSC_LS_PLOGI_PEND;
4932 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4933 "%s %d %8phC DS %d\n",
4934 __func__, __LINE__, sess->port_name, sess->disc_state);
4936 switch (sess->disc_state) {
4938 case DSC_LOGIN_PEND:
4939 qlt_plogi_ack_unref(vha, pla);
4944 * Under normal circumstances we want to release nport handle
4945 * during LOGO process to avoid nport handle leaks inside FW.
4946 * The exception is when LOGO is done while another PLOGI with
4947 * the same nport handle is waiting as might be the case here.
4948 * Note: there is always a possibily of a race where session
4949 * deletion has already started for other reasons (e.g. ACL
4950 * removal) and now PLOGI arrives:
4951 * 1. if PLOGI arrived in FW after nport handle has been freed,
4952 * FW must have assigned this PLOGI a new/same handle and we
4953 * can proceed ACK'ing it as usual when session deletion
4955 * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
4956 * bit reached it, the handle has now been released. We'll
4957 * get an error when we ACK this PLOGI. Nothing will be sent
4958 * back to initiator. Initiator should eventually retry
4959 * PLOGI and situation will correct itself.
4961 sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
4962 (sess->d_id.b24 == port_id.b24));
4964 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4965 "%s %d %8phC post del sess\n",
4966 __func__, __LINE__, sess->port_name);
4969 qlt_schedule_sess_for_deletion(sess);
4977 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
4979 static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
4980 struct imm_ntfy_from_isp *iocb)
4982 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4983 struct qla_hw_data *ha = vha->hw;
4984 struct fc_port *sess = NULL, *conflict_sess = NULL;
4990 unsigned long flags;
4992 lockdep_assert_held(&ha->hardware_lock);
4994 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4996 port_id.b.domain = iocb->u.isp24.port_id[2];
4997 port_id.b.area = iocb->u.isp24.port_id[1];
4998 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4999 port_id.b.rsvd_1 = 0;
5001 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
5003 ql_dbg(ql_dbg_disc, vha, 0xf026,
5004 "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n",
5005 vha->vp_idx, iocb->u.isp24.port_id[2],
5006 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
5007 iocb->u.isp24.status_subcode, loop_id,
5008 iocb->u.isp24.port_name);
5010 /* res = 1 means ack at the end of thread
5011 * res = 0 means ack async/later.
5013 switch (iocb->u.isp24.status_subcode) {
5015 res = qlt_handle_login(vha, iocb);
5020 sess = qla2x00_find_fcport_by_wwpn(vha,
5021 iocb->u.isp24.port_name, 1);
5023 if (vha->hw->flags.edif_enabled && sess &&
5024 (!(sess->flags & FCF_FCSP_DEVICE) ||
5025 !sess->edif.authok)) {
5026 ql_dbg(ql_dbg_disc, vha, 0xffff,
5027 "%s %d %8phC Term PRLI due to unauthorize PRLI\n",
5028 __func__, __LINE__, iocb->u.isp24.port_name);
5029 qlt_send_term_imm_notif(vha, iocb, 1);
5033 if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) {
5034 ql_dbg(ql_dbg_disc, vha, 0xffff,
5035 "%s %d %8phC Term PRLI due to PLOGI ACK not completed\n",
5037 iocb->u.isp24.port_name);
5038 qlt_send_term_imm_notif(vha, iocb, 1);
5042 res = qlt_handle_login(vha, iocb);
5046 if (IS_SW_RESV_ADDR(port_id)) {
5051 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
5054 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
5055 sess = qlt_find_sess_invalidate_other(vha, wwn, port_id,
5056 loop_id, &conflict_sess);
5057 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
5060 if (conflict_sess) {
5061 switch (conflict_sess->disc_state) {
5063 case DSC_DELETE_PEND:
5066 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
5067 "PRLI with conflicting sess %p port %8phC\n",
5068 conflict_sess, conflict_sess->port_name);
5069 conflict_sess->fw_login_state =
5070 DSC_LS_PORT_UNAVAIL;
5071 qlt_send_term_imm_notif(vha, iocb, 1);
5078 bool delete = false;
5081 if (vha->hw->flags.edif_enabled && sess &&
5082 (!(sess->flags & FCF_FCSP_DEVICE) ||
5083 !sess->edif.authok)) {
5084 ql_dbg(ql_dbg_disc, vha, 0xffff,
5085 "%s %d %8phC Term PRLI due to unauthorize prli\n",
5086 __func__, __LINE__, iocb->u.isp24.port_name);
5087 qlt_send_term_imm_notif(vha, iocb, 1);
5091 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
5092 switch (sess->fw_login_state) {
5093 case DSC_LS_PLOGI_PEND:
5094 case DSC_LS_PLOGI_COMP:
5095 case DSC_LS_PRLI_COMP:
5102 switch (sess->disc_state) {
5103 case DSC_UPD_FCPORT:
5104 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
5107 sec = jiffies_to_msecs(jiffies -
5108 sess->jiffies_at_registration)/1000;
5109 if (sess->sec_since_registration < sec && sec &&
5111 sess->sec_since_registration = sec;
5112 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
5113 "%s %8phC : Slow Rport registration(%d Sec)\n",
5114 __func__, sess->port_name, sec);
5116 qlt_send_term_imm_notif(vha, iocb, 1);
5119 case DSC_LOGIN_PEND:
5121 case DSC_LOGIN_COMPLETE:
5130 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
5133 * Impatient initiator sent PRLI before last
5134 * PLOGI could finish. Will force him to re-try,
5135 * while last one finishes.
5137 ql_log(ql_log_warn, sess->vha, 0xf095,
5138 "sess %p PRLI received, before plogi ack.\n",
5140 qlt_send_term_imm_notif(vha, iocb, 1);
5146 * This shouldn't happen under normal circumstances,
5147 * since we have deleted the old session during PLOGI
5149 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096,
5150 "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n",
5151 sess->loop_id, sess, iocb->u.isp24.nport_handle);
5154 sess->loop_id = loop_id;
5155 sess->d_id = port_id;
5156 sess->fw_login_state = DSC_LS_PRLI_PEND;
5159 sess->conf_compl_supported = 1;
5161 if ((wd3_lo & BIT_4) == 0)
5162 sess->port_type = FCT_INITIATOR;
5164 sess->port_type = FCT_TARGET;
5166 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
5168 res = 1; /* send notify ack */
5170 /* Make session global (not used in fabric mode) */
5171 if (ha->current_topology != ISP_CFG_F) {
5173 ql_dbg(ql_dbg_disc, vha, 0x20fa,
5174 "%s %d %8phC post nack\n",
5175 __func__, __LINE__, sess->port_name);
5176 qla24xx_post_nack_work(vha, sess, iocb,
5180 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5181 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5182 qla2xxx_wake_dpc(vha);
5186 ql_dbg(ql_dbg_disc, vha, 0x20fb,
5187 "%s %d %8phC post nack\n",
5188 __func__, __LINE__, sess->port_name);
5189 qla24xx_post_nack_work(vha, sess, iocb,
5197 if (le16_to_cpu(iocb->u.isp24.flags) &
5198 NOTIFY24XX_FLAGS_GLOBAL_TPRLO) {
5200 qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS);
5207 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5208 sess = qla2x00_find_fcport_by_loopid(vha, loop_id);
5209 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5213 sess->fw_login_state = DSC_LS_LOGO_PEND;
5214 sess->logo_ack_needed = 1;
5215 memcpy(sess->iocb, iocb, IOCB_SIZE);
5218 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5220 ql_dbg(ql_dbg_disc, vha, 0x20fc,
5221 "%s: logo %llx res %d sess %p ",
5222 __func__, wwn, res, sess);
5225 * cmd went upper layer, look for qlt_xmit_tm_rsp()
5226 * for LOGO_ACK & sess delete
5231 /* cmd did not go to upper layer. */
5233 qlt_schedule_sess_for_deletion(sess);
5236 /* else logo will be ack */
5242 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5244 if (tgt->link_reinit_iocb_pending) {
5245 qlt_send_notify_ack(ha->base_qpair,
5246 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5247 tgt->link_reinit_iocb_pending = 0;
5250 sess = qla2x00_find_fcport_by_wwpn(vha,
5251 iocb->u.isp24.port_name, 1);
5253 ql_dbg(ql_dbg_disc, vha, 0x20fd,
5254 "sess %p lid %d|%d DS %d LS %d\n",
5255 sess, sess->loop_id, loop_id,
5256 sess->disc_state, sess->fw_login_state);
5259 res = 1; /* send notify ack */
5263 case ELS_FLOGI: /* should never happen */
5265 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061,
5266 "qla_target(%d): Unsupported ELS command %x "
5267 "received\n", vha->vp_idx, iocb->u.isp24.status_subcode);
5268 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5272 ql_dbg(ql_dbg_disc, vha, 0xf026,
5273 "qla_target(%d): Exit ELS opcode: 0x%02x res %d\n",
5274 vha->vp_idx, iocb->u.isp24.status_subcode, res);
5280 * ha->hardware_lock supposed to be held on entry.
5281 * Might drop it, then reacquire.
5283 static void qlt_handle_imm_notify(struct scsi_qla_host *vha,
5284 struct imm_ntfy_from_isp *iocb)
5286 struct qla_hw_data *ha = vha->hw;
5287 uint32_t add_flags = 0;
5288 int send_notify_ack = 1;
5291 lockdep_assert_held(&ha->hardware_lock);
5293 status = le16_to_cpu(iocb->u.isp2x.status);
5295 case IMM_NTFY_LIP_RESET:
5297 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032,
5298 "qla_target(%d): LIP reset (loop %#x), subcode %x\n",
5299 vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle),
5300 iocb->u.isp24.status_subcode);
5302 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5303 send_notify_ack = 0;
5307 case IMM_NTFY_LIP_LINK_REINIT:
5309 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5311 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033,
5312 "qla_target(%d): LINK REINIT (loop %#x, "
5313 "subcode %x)\n", vha->vp_idx,
5314 le16_to_cpu(iocb->u.isp24.nport_handle),
5315 iocb->u.isp24.status_subcode);
5316 if (tgt->link_reinit_iocb_pending) {
5317 qlt_send_notify_ack(ha->base_qpair,
5318 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5320 memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb));
5321 tgt->link_reinit_iocb_pending = 1;
5323 * QLogic requires to wait after LINK REINIT for possible
5324 * PDISC or ADISC ELS commands
5326 send_notify_ack = 0;
5330 case IMM_NTFY_PORT_LOGOUT:
5331 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034,
5332 "qla_target(%d): Port logout (loop "
5333 "%#x, subcode %x)\n", vha->vp_idx,
5334 le16_to_cpu(iocb->u.isp24.nport_handle),
5335 iocb->u.isp24.status_subcode);
5337 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0)
5338 send_notify_ack = 0;
5339 /* The sessions will be cleared in the callback, if needed */
5342 case IMM_NTFY_GLBL_TPRLO:
5343 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035,
5344 "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status);
5345 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5346 send_notify_ack = 0;
5347 /* The sessions will be cleared in the callback, if needed */
5350 case IMM_NTFY_PORT_CONFIG:
5351 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036,
5352 "qla_target(%d): Port config changed (%x)\n", vha->vp_idx,
5354 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5355 send_notify_ack = 0;
5356 /* The sessions will be cleared in the callback, if needed */
5359 case IMM_NTFY_GLBL_LOGO:
5360 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
5361 "qla_target(%d): Link failure detected\n",
5363 /* I_T nexus loss */
5364 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5365 send_notify_ack = 0;
5368 case IMM_NTFY_IOCB_OVERFLOW:
5369 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b,
5370 "qla_target(%d): Cannot provide requested "
5371 "capability (IOCB overflowed the immediate notify "
5372 "resource count)\n", vha->vp_idx);
5375 case IMM_NTFY_ABORT_TASK:
5376 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037,
5377 "qla_target(%d): Abort Task (S %08x I %#x -> "
5378 "L %#x)\n", vha->vp_idx,
5379 le16_to_cpu(iocb->u.isp2x.seq_id),
5380 GET_TARGET_ID(ha, (struct atio_from_isp *)iocb),
5381 le16_to_cpu(iocb->u.isp2x.lun));
5382 if (qlt_abort_task(vha, iocb) == 0)
5383 send_notify_ack = 0;
5386 case IMM_NTFY_RESOURCE:
5387 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c,
5388 "qla_target(%d): Out of resources, host %ld\n",
5389 vha->vp_idx, vha->host_no);
5392 case IMM_NTFY_MSG_RX:
5393 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038,
5394 "qla_target(%d): Immediate notify task %x\n",
5395 vha->vp_idx, iocb->u.isp2x.task_flags);
5399 if (qlt_24xx_handle_els(vha, iocb) == 0)
5400 send_notify_ack = 0;
5403 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d,
5404 "qla_target(%d): Received unknown immediate "
5405 "notify status %x\n", vha->vp_idx, status);
5409 if (send_notify_ack)
5410 qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0,
5415 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5416 * This function sends busy to ISP 2xxx or 24xx.
5418 static int __qlt_send_busy(struct qla_qpair *qpair,
5419 struct atio_from_isp *atio, uint16_t status)
5421 struct scsi_qla_host *vha = qpair->vha;
5422 struct ctio7_to_24xx *ctio24;
5423 struct qla_hw_data *ha = vha->hw;
5425 struct fc_port *sess = NULL;
5426 unsigned long flags;
5430 id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
5432 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5433 sess = qla2x00_find_fcport_by_nportid(vha, &id, 1);
5434 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5436 qlt_send_term_exchange(qpair, NULL, atio, 1, 0);
5439 /* Sending marker isn't necessary, since we called from ISR */
5441 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
5443 ql_dbg(ql_dbg_io, vha, 0x3063,
5444 "qla_target(%d): %s failed: unable to allocate "
5445 "request packet", vha->vp_idx, __func__);
5449 qpair->tgt_counters.num_q_full_sent++;
5450 pkt->entry_count = 1;
5451 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
5453 ctio24 = (struct ctio7_to_24xx *)pkt;
5454 ctio24->entry_type = CTIO_TYPE7;
5455 ctio24->nport_handle = cpu_to_le16(sess->loop_id);
5456 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
5457 ctio24->vp_index = vha->vp_idx;
5458 ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
5459 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
5460 temp = (atio->u.isp24.attr << 9) |
5461 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
5462 CTIO7_FLAGS_DONT_RET_CTIO;
5463 ctio24->u.status1.flags = cpu_to_le16(temp);
5465 * CTIO from fw w/o se_cmd doesn't provide enough info to retry it,
5466 * if the explicit conformation is used.
5468 ctio24->u.status1.ox_id =
5469 cpu_to_le16(be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
5470 ctio24->u.status1.scsi_status = cpu_to_le16(status);
5472 ctio24->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
5474 if (ctio24->u.status1.residual != 0)
5475 ctio24->u.status1.scsi_status |= cpu_to_le16(SS_RESIDUAL_UNDER);
5477 /* Memory Barrier */
5479 if (qpair->reqq_start_iocbs)
5480 qpair->reqq_start_iocbs(qpair);
5482 qla2x00_start_iocbs(vha, qpair->req);
5487 * This routine is used to allocate a command for either a QFull condition
5488 * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go
5492 qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
5493 struct atio_from_isp *atio, uint16_t status, int qfull)
5495 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5496 struct qla_hw_data *ha = vha->hw;
5497 struct fc_port *sess;
5498 struct qla_tgt_cmd *cmd;
5499 unsigned long flags;
5501 if (unlikely(tgt->tgt_stop)) {
5502 ql_dbg(ql_dbg_io, vha, 0x300a,
5503 "New command while device %p is shutting down\n", tgt);
5507 if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) {
5508 vha->hw->tgt.num_qfull_cmds_dropped++;
5509 if (vha->hw->tgt.num_qfull_cmds_dropped >
5510 vha->qla_stats.stat_max_qfull_cmds_dropped)
5511 vha->qla_stats.stat_max_qfull_cmds_dropped =
5512 vha->hw->tgt.num_qfull_cmds_dropped;
5514 ql_dbg(ql_dbg_io, vha, 0x3068,
5515 "qla_target(%d): %s: QFull CMD dropped[%d]\n",
5516 vha->vp_idx, __func__,
5517 vha->hw->tgt.num_qfull_cmds_dropped);
5519 qlt_chk_exch_leak_thresh_hold(vha);
5523 sess = ha->tgt.tgt_ops->find_sess_by_s_id
5524 (vha, atio->u.isp24.fcp_hdr.s_id);
5528 cmd = ha->tgt.tgt_ops->get_cmd(sess);
5530 ql_dbg(ql_dbg_io, vha, 0x3009,
5531 "qla_target(%d): %s: Allocation of cmd failed\n",
5532 vha->vp_idx, __func__);
5534 vha->hw->tgt.num_qfull_cmds_dropped++;
5535 if (vha->hw->tgt.num_qfull_cmds_dropped >
5536 vha->qla_stats.stat_max_qfull_cmds_dropped)
5537 vha->qla_stats.stat_max_qfull_cmds_dropped =
5538 vha->hw->tgt.num_qfull_cmds_dropped;
5540 qlt_chk_exch_leak_thresh_hold(vha);
5544 qlt_incr_num_pend_cmds(vha);
5545 INIT_LIST_HEAD(&cmd->cmd_list);
5546 memcpy(&cmd->atio, atio, sizeof(*atio));
5548 cmd->tgt = vha->vha_tgt.qla_tgt;
5550 cmd->reset_count = ha->base_qpair->chip_reset;
5552 cmd->qpair = ha->base_qpair;
5556 /* NOTE: borrowing the state field to carry the status */
5557 cmd->state = status;
5559 cmd->term_exchg = 1;
5561 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5562 list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list);
5564 vha->hw->tgt.num_qfull_cmds_alloc++;
5565 if (vha->hw->tgt.num_qfull_cmds_alloc >
5566 vha->qla_stats.stat_max_qfull_cmds_alloc)
5567 vha->qla_stats.stat_max_qfull_cmds_alloc =
5568 vha->hw->tgt.num_qfull_cmds_alloc;
5569 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5573 qlt_free_qfull_cmds(struct qla_qpair *qpair)
5575 struct scsi_qla_host *vha = qpair->vha;
5576 struct qla_hw_data *ha = vha->hw;
5577 unsigned long flags;
5578 struct qla_tgt_cmd *cmd, *tcmd;
5579 struct list_head free_list, q_full_list;
5582 if (list_empty(&ha->tgt.q_full_list))
5585 INIT_LIST_HEAD(&free_list);
5586 INIT_LIST_HEAD(&q_full_list);
5588 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5589 if (list_empty(&ha->tgt.q_full_list)) {
5590 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5594 list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list);
5595 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5597 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
5598 list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) {
5600 /* cmd->state is a borrowed field to hold status */
5601 rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state);
5602 else if (cmd->term_exchg)
5603 rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio);
5609 ql_dbg(ql_dbg_io, vha, 0x3006,
5610 "%s: busy sent for ox_id[%04x]\n", __func__,
5611 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5612 else if (cmd->term_exchg)
5613 ql_dbg(ql_dbg_io, vha, 0x3007,
5614 "%s: Term exchg sent for ox_id[%04x]\n", __func__,
5615 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5617 ql_dbg(ql_dbg_io, vha, 0x3008,
5618 "%s: Unexpected cmd in QFull list %p\n", __func__,
5621 list_move_tail(&cmd->cmd_list, &free_list);
5623 /* piggy back on hardware_lock for protection */
5624 vha->hw->tgt.num_qfull_cmds_alloc--;
5626 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
5630 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
5631 list_del(&cmd->cmd_list);
5632 /* This cmd was never sent to TCM. There is no need
5633 * to schedule free or call free_cmd
5638 if (!list_empty(&q_full_list)) {
5639 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5640 list_splice(&q_full_list, &vha->hw->tgt.q_full_list);
5641 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5648 qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio,
5652 struct scsi_qla_host *vha = qpair->vha;
5654 rc = __qlt_send_busy(qpair, atio, status);
5656 qlt_alloc_qfull_cmd(vha, atio, status, 1);
5660 qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
5661 struct atio_from_isp *atio, uint8_t ha_locked)
5663 struct qla_hw_data *ha = vha->hw;
5664 unsigned long flags;
5666 if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
5670 spin_lock_irqsave(&ha->hardware_lock, flags);
5671 qlt_send_busy(qpair, atio, qla_sam_status);
5673 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5678 /* ha->hardware_lock supposed to be held on entry */
5679 /* called via callback from qla2xxx */
5680 static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
5681 struct atio_from_isp *atio, uint8_t ha_locked)
5683 struct qla_hw_data *ha = vha->hw;
5684 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5686 unsigned long flags = 0;
5688 if (unlikely(tgt == NULL)) {
5689 ql_dbg(ql_dbg_tgt, vha, 0x3064,
5690 "ATIO pkt, but no tgt (ha %p)", ha);
5694 * In tgt_stop mode we also should allow all requests to pass.
5695 * Otherwise, some commands can stuck.
5698 tgt->atio_irq_cmd_count++;
5700 switch (atio->u.raw.entry_type) {
5702 if (unlikely(atio->u.isp24.exchange_addr ==
5703 cpu_to_le32(ATIO_EXCHANGE_ADDRESS_UNKNOWN))) {
5704 ql_dbg(ql_dbg_io, vha, 0x3065,
5705 "qla_target(%d): ATIO_TYPE7 "
5706 "received with UNKNOWN exchange address, "
5707 "sending QUEUE_FULL\n", vha->vp_idx);
5709 spin_lock_irqsave(&ha->hardware_lock, flags);
5710 qlt_send_busy(ha->base_qpair, atio, qla_sam_status);
5712 spin_unlock_irqrestore(&ha->hardware_lock,
5717 if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) {
5718 rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair,
5721 tgt->atio_irq_cmd_count--;
5724 rc = qlt_handle_cmd_for_atio(vha, atio);
5726 rc = qlt_handle_task_mgmt(vha, atio);
5728 if (unlikely(rc != 0)) {
5730 spin_lock_irqsave(&ha->hardware_lock, flags);
5733 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5734 "qla_target: Unable to send command to target\n");
5737 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5738 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5739 qlt_send_term_exchange(ha->base_qpair, NULL,
5743 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5744 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5746 qlt_send_busy(ha->base_qpair, atio,
5750 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5751 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5753 qlt_send_busy(ha->base_qpair, atio,
5758 spin_unlock_irqrestore(&ha->hardware_lock,
5763 case IMMED_NOTIFY_TYPE:
5765 if (unlikely(atio->u.isp2x.entry_status != 0)) {
5766 ql_dbg(ql_dbg_tgt, vha, 0xe05b,
5767 "qla_target(%d): Received ATIO packet %x "
5768 "with error status %x\n", vha->vp_idx,
5769 atio->u.raw.entry_type,
5770 atio->u.isp2x.entry_status);
5773 ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
5776 spin_lock_irqsave(&ha->hardware_lock, flags);
5777 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio);
5779 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5784 ql_dbg(ql_dbg_tgt, vha, 0xe05c,
5785 "qla_target(%d): Received unknown ATIO atio "
5786 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
5790 tgt->atio_irq_cmd_count--;
5794 * qpair lock is assume to be held
5795 * rc = 0 : send terminate & abts respond
5796 * rc != 0: do not send term & abts respond
5798 static int qlt_chk_unresolv_exchg(struct scsi_qla_host *vha,
5799 struct qla_qpair *qpair, struct abts_resp_from_24xx_fw *entry)
5801 struct qla_hw_data *ha = vha->hw;
5805 * Detect unresolved exchange. If the same ABTS is unable
5806 * to terminate an existing command and the same ABTS loops
5807 * between FW & Driver, then force FW dump. Under 1 jiff,
5808 * we should see multiple loops.
5810 if (qpair->retry_term_exchg_addr == entry->exchange_addr_to_abort &&
5811 qpair->retry_term_jiff == jiffies) {
5812 /* found existing exchange */
5813 qpair->retry_term_cnt++;
5814 if (qpair->retry_term_cnt >= 5) {
5816 qpair->retry_term_cnt = 0;
5817 ql_log(ql_log_warn, vha, 0xffff,
5818 "Unable to send ABTS Respond. Dumping firmware.\n");
5819 ql_dump_buffer(ql_dbg_tgt_mgt + ql_dbg_buffer,
5820 vha, 0xffff, (uint8_t *)entry, sizeof(*entry));
5822 if (qpair == ha->base_qpair)
5823 ha->isp_ops->fw_dump(vha);
5825 qla2xxx_dump_fw(vha);
5827 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
5828 qla2xxx_wake_dpc(vha);
5830 } else if (qpair->retry_term_jiff != jiffies) {
5831 qpair->retry_term_exchg_addr = entry->exchange_addr_to_abort;
5832 qpair->retry_term_cnt = 0;
5833 qpair->retry_term_jiff = jiffies;
5840 static void qlt_handle_abts_completion(struct scsi_qla_host *vha,
5841 struct rsp_que *rsp, response_t *pkt)
5843 struct abts_resp_from_24xx_fw *entry =
5844 (struct abts_resp_from_24xx_fw *)pkt;
5845 u32 h = pkt->handle & ~QLA_TGT_HANDLE_MASK;
5846 struct qla_tgt_mgmt_cmd *mcmd;
5847 struct qla_hw_data *ha = vha->hw;
5849 mcmd = qlt_ctio_to_cmd(vha, rsp, pkt->handle, pkt);
5850 if (mcmd == NULL && h != QLA_TGT_SKIP_HANDLE) {
5851 ql_dbg(ql_dbg_async, vha, 0xe064,
5852 "qla_target(%d): ABTS Comp without mcmd\n",
5859 vha->vha_tgt.qla_tgt->abts_resp_expected--;
5861 ql_dbg(ql_dbg_tgt, vha, 0xe038,
5862 "ABTS_RESP_24XX: compl_status %x\n",
5863 entry->compl_status);
5865 if (le16_to_cpu(entry->compl_status) != ABTS_RESP_COMPL_SUCCESS) {
5866 if (le32_to_cpu(entry->error_subcode1) == 0x1E &&
5867 le32_to_cpu(entry->error_subcode2) == 0) {
5868 if (qlt_chk_unresolv_exchg(vha, rsp->qpair, entry)) {
5869 ha->tgt.tgt_ops->free_mcmd(mcmd);
5872 qlt_24xx_retry_term_exchange(vha, rsp->qpair,
5875 ql_dbg(ql_dbg_tgt, vha, 0xe063,
5876 "qla_target(%d): ABTS_RESP_24XX failed %x (subcode %x:%x)",
5877 vha->vp_idx, entry->compl_status,
5878 entry->error_subcode1,
5879 entry->error_subcode2);
5880 ha->tgt.tgt_ops->free_mcmd(mcmd);
5883 ha->tgt.tgt_ops->free_mcmd(mcmd);
5887 /* ha->hardware_lock supposed to be held on entry */
5888 /* called via callback from qla2xxx */
5889 static void qlt_response_pkt(struct scsi_qla_host *vha,
5890 struct rsp_que *rsp, response_t *pkt)
5892 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5894 if (unlikely(tgt == NULL)) {
5895 ql_dbg(ql_dbg_tgt, vha, 0xe05d,
5896 "qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
5897 vha->vp_idx, pkt->entry_type, vha->hw);
5902 * In tgt_stop mode we also should allow all requests to pass.
5903 * Otherwise, some commands can stuck.
5906 switch (pkt->entry_type) {
5910 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
5912 qlt_do_ctio_completion(vha, rsp, entry->handle,
5913 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5918 case ACCEPT_TGT_IO_TYPE:
5920 struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
5923 if (atio->u.isp2x.status !=
5924 cpu_to_le16(ATIO_CDB_VALID)) {
5925 ql_dbg(ql_dbg_tgt, vha, 0xe05e,
5926 "qla_target(%d): ATIO with error "
5927 "status %x received\n", vha->vp_idx,
5928 le16_to_cpu(atio->u.isp2x.status));
5932 rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1);
5936 rc = qlt_handle_cmd_for_atio(vha, atio);
5937 if (unlikely(rc != 0)) {
5940 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5941 "qla_target: Unable to send command to target\n");
5944 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5945 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5946 qlt_send_term_exchange(rsp->qpair, NULL,
5950 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5951 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5953 qlt_send_busy(rsp->qpair, atio,
5957 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5958 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5960 qlt_send_busy(rsp->qpair, atio,
5968 case CONTINUE_TGT_IO_TYPE:
5970 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5972 qlt_do_ctio_completion(vha, rsp, entry->handle,
5973 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5980 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5982 qlt_do_ctio_completion(vha, rsp, entry->handle,
5983 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5988 case IMMED_NOTIFY_TYPE:
5989 ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n");
5990 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt);
5993 case NOTIFY_ACK_TYPE:
5994 if (tgt->notify_ack_expected > 0) {
5995 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
5997 ql_dbg(ql_dbg_tgt, vha, 0xe036,
5998 "NOTIFY_ACK seq %08x status %x\n",
5999 le16_to_cpu(entry->u.isp2x.seq_id),
6000 le16_to_cpu(entry->u.isp2x.status));
6001 tgt->notify_ack_expected--;
6002 if (entry->u.isp2x.status !=
6003 cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
6004 ql_dbg(ql_dbg_tgt, vha, 0xe061,
6005 "qla_target(%d): NOTIFY_ACK "
6006 "failed %x\n", vha->vp_idx,
6007 le16_to_cpu(entry->u.isp2x.status));
6010 ql_dbg(ql_dbg_tgt, vha, 0xe062,
6011 "qla_target(%d): Unexpected NOTIFY_ACK received\n",
6016 case ABTS_RECV_24XX:
6017 ql_dbg(ql_dbg_tgt, vha, 0xe037,
6018 "ABTS_RECV_24XX: instance %d\n", vha->vp_idx);
6019 qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt);
6022 case ABTS_RESP_24XX:
6023 if (tgt->abts_resp_expected > 0) {
6024 qlt_handle_abts_completion(vha, rsp, pkt);
6026 ql_dbg(ql_dbg_tgt, vha, 0xe064,
6027 "qla_target(%d): Unexpected ABTS_RESP_24XX "
6028 "received\n", vha->vp_idx);
6033 ql_dbg(ql_dbg_tgt, vha, 0xe065,
6034 "qla_target(%d): Received unknown response pkt "
6035 "type %x\n", vha->vp_idx, pkt->entry_type);
6042 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
6044 void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
6047 struct qla_hw_data *ha = vha->hw;
6048 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6051 if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
6054 if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
6058 * In tgt_stop mode we also should allow all requests to pass.
6059 * Otherwise, some commands can stuck.
6064 case MBA_RESET: /* Reset */
6065 case MBA_SYSTEM_ERR: /* System Error */
6066 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
6067 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
6068 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a,
6069 "qla_target(%d): System error async event %#x "
6070 "occurred", vha->vp_idx, code);
6072 case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */
6073 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6078 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b,
6079 "qla_target(%d): Async LOOP_UP occurred "
6080 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx,
6081 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
6082 if (tgt->link_reinit_iocb_pending) {
6083 qlt_send_notify_ack(ha->base_qpair,
6084 &tgt->link_reinit_iocb,
6086 tgt->link_reinit_iocb_pending = 0;
6091 case MBA_LIP_OCCURRED:
6094 case MBA_RSCN_UPDATE:
6095 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c,
6096 "qla_target(%d): Async event %#x occurred "
6097 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code,
6098 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
6101 case MBA_REJECTED_FCP_CMD:
6102 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017,
6103 "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)",
6105 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
6107 if (mailbox[3] == 1) {
6108 /* exchange starvation. */
6109 vha->hw->exch_starvation++;
6110 if (vha->hw->exch_starvation > 5) {
6111 ql_log(ql_log_warn, vha, 0xd03a,
6112 "Exchange starvation-. Resetting RISC\n");
6114 vha->hw->exch_starvation = 0;
6115 if (IS_P3P_TYPE(vha->hw))
6116 set_bit(FCOE_CTX_RESET_NEEDED,
6119 set_bit(ISP_ABORT_NEEDED,
6121 qla2xxx_wake_dpc(vha);
6126 case MBA_PORT_UPDATE:
6127 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d,
6128 "qla_target(%d): Port update async event %#x "
6129 "occurred: updating the ports database (m[0]=%x, m[1]=%x, "
6130 "m[2]=%x, m[3]=%x)", vha->vp_idx, code,
6131 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
6133 login_code = mailbox[2];
6134 if (login_code == 0x4) {
6135 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e,
6136 "Async MB 2: Got PLOGI Complete\n");
6137 vha->hw->exch_starvation = 0;
6138 } else if (login_code == 0x7)
6139 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f,
6140 "Async MB 2: Port Logged Out\n");
6148 static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
6151 fc_port_t *fcport, *tfcp, *del;
6153 unsigned long flags;
6156 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6158 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
6159 "qla_target(%d): Allocation of tmp FC port failed",
6164 fcport->loop_id = loop_id;
6166 rc = qla24xx_gpdb_wait(vha, fcport, 0);
6167 if (rc != QLA_SUCCESS) {
6168 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070,
6169 "qla_target(%d): Failed to retrieve fcport "
6170 "information -- get_port_database() returned %x "
6171 "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
6177 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
6178 tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1);
6181 tfcp->d_id = fcport->d_id;
6182 tfcp->port_type = fcport->port_type;
6183 tfcp->supported_classes = fcport->supported_classes;
6184 tfcp->flags |= fcport->flags;
6185 tfcp->scan_state = QLA_FCPORT_FOUND;
6190 if (vha->hw->current_topology == ISP_CFG_F)
6191 fcport->flags |= FCF_FABRIC_DEVICE;
6193 list_add_tail(&fcport->list, &vha->vp_fcports);
6194 if (!IS_SW_RESV_ADDR(fcport->d_id))
6195 vha->fcport_count++;
6196 fcport->login_gen++;
6197 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
6198 fcport->login_succ = 1;
6202 fcport->deleted = 0;
6203 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6205 switch (vha->host->active_mode) {
6206 case MODE_INITIATOR:
6209 if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) {
6210 qla24xx_sched_upd_fcport(fcport);
6212 ql_dbg(ql_dbg_disc, vha, 0x20ff,
6213 "%s %d %8phC post gpsc fcp_cnt %d\n",
6214 __func__, __LINE__, fcport->port_name, vha->fcport_count);
6215 qla24xx_post_gpsc_work(vha, fcport);
6225 qla2x00_free_fcport(del);
6230 /* Must be called under tgt_mutex */
6231 static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha,
6234 struct fc_port *sess = NULL;
6235 fc_port_t *fcport = NULL;
6236 int rc, global_resets;
6237 uint16_t loop_id = 0;
6239 if (s_id.domain == 0xFF && s_id.area == 0xFC) {
6241 * This is Domain Controller, so it should be
6242 * OK to drop SCSI commands from it.
6244 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042,
6245 "Unable to find initiator with S_ID %x:%x:%x",
6246 s_id.domain, s_id.area, s_id.al_pa);
6250 mutex_lock(&vha->vha_tgt.tgt_mutex);
6254 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
6256 rc = qla24xx_get_loop_id(vha, s_id, &loop_id);
6258 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6260 ql_log(ql_log_info, vha, 0xf071,
6261 "qla_target(%d): Unable to find "
6262 "initiator with S_ID %x:%x:%x",
6263 vha->vp_idx, s_id.domain, s_id.area, s_id.al_pa);
6265 if (rc == -ENOENT) {
6266 qlt_port_logo_t logo;
6268 logo.id = be_to_port_id(s_id);
6270 qlt_send_first_logo(vha, &logo);
6276 fcport = qlt_get_port_database(vha, loop_id);
6278 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6282 if (global_resets !=
6283 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) {
6284 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043,
6285 "qla_target(%d): global reset during session discovery "
6286 "(counter was %d, new %d), retrying", vha->vp_idx,
6288 atomic_read(&vha->vha_tgt.
6289 qla_tgt->tgt_global_resets_count));
6293 sess = qlt_create_sess(vha, fcport, true);
6295 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6300 static void qlt_abort_work(struct qla_tgt *tgt,
6301 struct qla_tgt_sess_work_param *prm)
6303 struct scsi_qla_host *vha = tgt->vha;
6304 struct qla_hw_data *ha = vha->hw;
6305 struct fc_port *sess = NULL;
6306 unsigned long flags = 0, flags2 = 0;
6310 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6315 s_id = le_id_to_be(prm->abts.fcp_hdr_le.s_id);
6317 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6319 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6321 sess = qlt_make_local_sess(vha, s_id);
6322 /* sess has got an extra creation ref */
6324 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6328 if (sess->deleted) {
6333 if (!kref_get_unless_zero(&sess->sess_kref)) {
6334 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c,
6335 "%s: kref_get fail %8phC \n",
6336 __func__, sess->port_name);
6342 rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
6343 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6345 ha->tgt.tgt_ops->put_sess(sess);
6352 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6355 spin_lock_irqsave(&ha->hardware_lock, flags);
6356 qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts,
6357 FCP_TMF_REJECTED, false);
6358 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6361 static void qlt_tmr_work(struct qla_tgt *tgt,
6362 struct qla_tgt_sess_work_param *prm)
6364 struct atio_from_isp *a = &prm->tm_iocb2;
6365 struct scsi_qla_host *vha = tgt->vha;
6366 struct qla_hw_data *ha = vha->hw;
6367 struct fc_port *sess;
6368 unsigned long flags;
6375 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6380 s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id;
6381 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6383 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6385 sess = qlt_make_local_sess(vha, s_id);
6386 /* sess has got an extra creation ref */
6388 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6392 if (sess->deleted) {
6396 if (!kref_get_unless_zero(&sess->sess_kref)) {
6397 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020,
6398 "%s: kref_get fail %8phC\n",
6399 __func__, sess->port_name);
6405 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
6407 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
6409 rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
6410 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6412 ha->tgt.tgt_ops->put_sess(sess);
6419 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6421 qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0);
6424 static void qlt_sess_work_fn(struct work_struct *work)
6426 struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
6427 struct scsi_qla_host *vha = tgt->vha;
6428 unsigned long flags;
6430 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt);
6432 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6433 while (!list_empty(&tgt->sess_works_list)) {
6434 struct qla_tgt_sess_work_param *prm = list_entry(
6435 tgt->sess_works_list.next, typeof(*prm),
6436 sess_works_list_entry);
6439 * This work can be scheduled on several CPUs at time, so we
6440 * must delete the entry to eliminate double processing
6442 list_del(&prm->sess_works_list_entry);
6444 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6446 switch (prm->type) {
6447 case QLA_TGT_SESS_WORK_ABORT:
6448 qlt_abort_work(tgt, prm);
6450 case QLA_TGT_SESS_WORK_TM:
6451 qlt_tmr_work(tgt, prm);
6458 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6462 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6465 /* Must be called under tgt_host_action_mutex */
6466 int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
6468 struct qla_tgt *tgt;
6470 struct qla_qpair_hint *h;
6472 if (!QLA_TGT_MODE_ENABLED())
6475 if (!IS_TGT_MODE_CAPABLE(ha)) {
6476 ql_log(ql_log_warn, base_vha, 0xe070,
6477 "This adapter does not support target mode.\n");
6481 ql_dbg(ql_dbg_tgt, base_vha, 0xe03b,
6482 "Registering target for host %ld(%p).\n", base_vha->host_no, ha);
6484 BUG_ON(base_vha->vha_tgt.qla_tgt != NULL);
6486 tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL);
6488 ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
6489 "Unable to allocate struct qla_tgt\n");
6493 tgt->qphints = kcalloc(ha->max_qpairs + 1,
6494 sizeof(struct qla_qpair_hint),
6496 if (!tgt->qphints) {
6498 ql_log(ql_log_warn, base_vha, 0x0197,
6499 "Unable to allocate qpair hints.\n");
6503 if (!(base_vha->host->hostt->supported_mode & MODE_TARGET))
6504 base_vha->host->hostt->supported_mode |= MODE_TARGET;
6506 rc = btree_init64(&tgt->lun_qpair_map);
6508 kfree(tgt->qphints);
6510 ql_log(ql_log_info, base_vha, 0x0198,
6511 "Unable to initialize lun_qpair_map btree\n");
6514 h = &tgt->qphints[0];
6515 h->qpair = ha->base_qpair;
6516 INIT_LIST_HEAD(&h->hint_elem);
6517 h->cpuid = ha->base_qpair->cpuid;
6518 list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list);
6520 for (i = 0; i < ha->max_qpairs; i++) {
6521 unsigned long flags;
6523 struct qla_qpair *qpair = ha->queue_pair_map[i];
6525 h = &tgt->qphints[i + 1];
6526 INIT_LIST_HEAD(&h->hint_elem);
6529 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
6530 list_add_tail(&h->hint_elem, &qpair->hints_list);
6531 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
6532 h->cpuid = qpair->cpuid;
6537 tgt->vha = base_vha;
6538 init_waitqueue_head(&tgt->waitQ);
6539 INIT_LIST_HEAD(&tgt->del_sess_list);
6540 spin_lock_init(&tgt->sess_work_lock);
6541 INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
6542 INIT_LIST_HEAD(&tgt->sess_works_list);
6543 atomic_set(&tgt->tgt_global_resets_count, 0);
6545 base_vha->vha_tgt.qla_tgt = tgt;
6547 ql_dbg(ql_dbg_tgt, base_vha, 0xe067,
6548 "qla_target(%d): using 64 Bit PCI addressing",
6551 tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3);
6553 mutex_lock(&qla_tgt_mutex);
6554 list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist);
6555 mutex_unlock(&qla_tgt_mutex);
6557 if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target)
6558 ha->tgt.tgt_ops->add_target(base_vha);
6563 /* Must be called under tgt_host_action_mutex */
6564 int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
6566 if (!vha->vha_tgt.qla_tgt)
6569 if (vha->fc_vport) {
6570 qlt_release(vha->vha_tgt.qla_tgt);
6574 /* free left over qfull cmds */
6575 qlt_init_term_exchange(vha);
6577 ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
6579 qlt_release(vha->vha_tgt.qla_tgt);
6584 void qla_remove_hostmap(struct qla_hw_data *ha)
6586 struct scsi_qla_host *node;
6589 btree_for_each_safe32(&ha->host_map, key, node)
6590 btree_remove32(&ha->host_map, key);
6592 btree_destroy32(&ha->host_map);
6595 static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn,
6598 pr_debug("qla2xxx HW vha->node_name: %8phC\n", vha->node_name);
6599 pr_debug("qla2xxx HW vha->port_name: %8phC\n", vha->port_name);
6600 put_unaligned_be64(wwpn, b);
6601 pr_debug("qla2xxx passed configfs WWPN: %8phC\n", b);
6605 * qlt_lport_register - register lport with external module
6607 * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data
6608 * @phys_wwpn: physical port WWPN
6609 * @npiv_wwpn: NPIV WWPN
6610 * @npiv_wwnn: NPIV WWNN
6611 * @callback: lport initialization callback for tcm_qla2xxx code
6613 int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn,
6614 u64 npiv_wwpn, u64 npiv_wwnn,
6615 int (*callback)(struct scsi_qla_host *, void *, u64, u64))
6617 struct qla_tgt *tgt;
6618 struct scsi_qla_host *vha;
6619 struct qla_hw_data *ha;
6620 struct Scsi_Host *host;
6621 unsigned long flags;
6625 mutex_lock(&qla_tgt_mutex);
6626 list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) {
6634 if (!(host->hostt->supported_mode & MODE_TARGET))
6637 if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
6640 spin_lock_irqsave(&ha->hardware_lock, flags);
6641 if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) {
6642 pr_debug("MODE_TARGET already active on qla2xxx(%d)\n",
6644 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6647 if (tgt->tgt_stop) {
6648 pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n",
6650 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6653 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6655 if (!scsi_host_get(host)) {
6656 ql_dbg(ql_dbg_tgt, vha, 0xe068,
6657 "Unable to scsi_host_get() for"
6658 " qla2xxx scsi_host\n");
6661 qlt_lport_dump(vha, phys_wwpn, b);
6663 if (memcmp(vha->port_name, b, WWN_SIZE)) {
6664 scsi_host_put(host);
6667 rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn);
6669 scsi_host_put(host);
6671 mutex_unlock(&qla_tgt_mutex);
6674 mutex_unlock(&qla_tgt_mutex);
6678 EXPORT_SYMBOL(qlt_lport_register);
6681 * qlt_lport_deregister - Degister lport
6683 * @vha: Registered scsi_qla_host pointer
6685 void qlt_lport_deregister(struct scsi_qla_host *vha)
6687 struct qla_hw_data *ha = vha->hw;
6688 struct Scsi_Host *sh = vha->host;
6690 * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data
6692 vha->vha_tgt.target_lport_ptr = NULL;
6693 ha->tgt.tgt_ops = NULL;
6695 * Release the Scsi_Host reference for the underlying qla2xxx host
6699 EXPORT_SYMBOL(qlt_lport_deregister);
6701 /* Must be called under HW lock */
6702 void qlt_set_mode(struct scsi_qla_host *vha)
6704 switch (vha->qlini_mode) {
6705 case QLA2XXX_INI_MODE_DISABLED:
6706 case QLA2XXX_INI_MODE_EXCLUSIVE:
6707 vha->host->active_mode = MODE_TARGET;
6709 case QLA2XXX_INI_MODE_ENABLED:
6710 vha->host->active_mode = MODE_INITIATOR;
6712 case QLA2XXX_INI_MODE_DUAL:
6713 vha->host->active_mode = MODE_DUAL;
6720 /* Must be called under HW lock */
6721 static void qlt_clear_mode(struct scsi_qla_host *vha)
6723 switch (vha->qlini_mode) {
6724 case QLA2XXX_INI_MODE_DISABLED:
6725 vha->host->active_mode = MODE_UNKNOWN;
6727 case QLA2XXX_INI_MODE_EXCLUSIVE:
6728 vha->host->active_mode = MODE_INITIATOR;
6730 case QLA2XXX_INI_MODE_ENABLED:
6731 case QLA2XXX_INI_MODE_DUAL:
6732 vha->host->active_mode = MODE_INITIATOR;
6740 * qla_tgt_enable_vha - NO LOCK HELD
6742 * host_reset, bring up w/ Target Mode Enabled
6745 qlt_enable_vha(struct scsi_qla_host *vha)
6747 struct qla_hw_data *ha = vha->hw;
6748 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6749 unsigned long flags;
6750 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6753 ql_dbg(ql_dbg_tgt, vha, 0xe069,
6754 "Unable to locate qla_tgt pointer from"
6755 " struct qla_hw_data\n");
6759 if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
6762 if (ha->tgt.num_act_qpairs > ha->max_qpairs)
6763 ha->tgt.num_act_qpairs = ha->max_qpairs;
6764 spin_lock_irqsave(&ha->hardware_lock, flags);
6765 tgt->tgt_stopped = 0;
6767 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6769 mutex_lock(&ha->optrom_mutex);
6770 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021,
6773 qla24xx_disable_vp(vha);
6774 qla24xx_enable_vp(vha);
6776 set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
6777 qla2xxx_wake_dpc(base_vha);
6778 WARN_ON_ONCE(qla2x00_wait_for_hba_online(base_vha) !=
6781 mutex_unlock(&ha->optrom_mutex);
6783 EXPORT_SYMBOL(qlt_enable_vha);
6786 * qla_tgt_disable_vha - NO LOCK HELD
6788 * Disable Target Mode and reset the adapter
6790 static void qlt_disable_vha(struct scsi_qla_host *vha)
6792 struct qla_hw_data *ha = vha->hw;
6793 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6794 unsigned long flags;
6797 ql_dbg(ql_dbg_tgt, vha, 0xe06a,
6798 "Unable to locate qla_tgt pointer from"
6799 " struct qla_hw_data\n");
6804 spin_lock_irqsave(&ha->hardware_lock, flags);
6805 qlt_clear_mode(vha);
6806 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6808 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6809 qla2xxx_wake_dpc(vha);
6812 * We are expecting the offline state.
6813 * QLA_FUNCTION_FAILED means that adapter is offline.
6815 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
6816 ql_dbg(ql_dbg_tgt, vha, 0xe081,
6817 "adapter is offline\n");
6821 * Called from qla_init.c:qla24xx_vport_create() contex to setup
6822 * the target mode specific struct scsi_qla_host and struct qla_hw_data
6826 qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
6828 vha->vha_tgt.qla_tgt = NULL;
6830 mutex_init(&vha->vha_tgt.tgt_mutex);
6831 mutex_init(&vha->vha_tgt.tgt_host_action_mutex);
6833 qlt_clear_mode(vha);
6836 * NOTE: Currently the value is kept the same for <24xx and
6837 * >=24xx ISPs. If it is necessary to change it,
6838 * the check should be added for specific ISPs,
6839 * assigning the value appropriately.
6841 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
6843 qlt_add_target(ha, vha);
6847 qlt_rff_id(struct scsi_qla_host *vha)
6851 * FC-4 Feature bit 0 indicates target functionality to the name server.
6853 if (qla_tgt_mode_enabled(vha)) {
6854 fc4_feature = BIT_0;
6855 } else if (qla_ini_mode_enabled(vha)) {
6856 fc4_feature = BIT_1;
6857 } else if (qla_dual_mode_enabled(vha))
6858 fc4_feature = BIT_0 | BIT_1;
6864 * qlt_init_atio_q_entries() - Initializes ATIO queue entries.
6867 * Beginning of ATIO ring has initialization control block already built
6868 * by nvram config routine.
6870 * Returns 0 on success.
6873 qlt_init_atio_q_entries(struct scsi_qla_host *vha)
6875 struct qla_hw_data *ha = vha->hw;
6877 struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring;
6879 if (qla_ini_mode_enabled(vha))
6882 for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) {
6883 pkt->u.raw.signature = cpu_to_le32(ATIO_PROCESSED);
6890 * qlt_24xx_process_atio_queue() - Process ATIO queue entries.
6891 * @ha: SCSI driver HA context
6894 qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked)
6896 struct qla_hw_data *ha = vha->hw;
6897 struct atio_from_isp *pkt;
6900 if (!ha->flags.fw_started)
6903 while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
6904 fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
6905 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6906 cnt = pkt->u.raw.entry_count;
6908 if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
6910 * This packet is corrupted. The header + payload
6911 * can not be trusted. There is no point in passing
6914 ql_log(ql_log_warn, vha, 0xd03c,
6915 "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
6916 &pkt->u.isp24.fcp_hdr.s_id,
6917 be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
6918 pkt->u.isp24.exchange_addr, pkt);
6920 adjust_corrupted_atio(pkt);
6921 qlt_send_term_exchange(ha->base_qpair, NULL, pkt,
6924 qlt_24xx_atio_pkt_all_vps(vha,
6925 (struct atio_from_isp *)pkt, ha_locked);
6928 for (i = 0; i < cnt; i++) {
6929 ha->tgt.atio_ring_index++;
6930 if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) {
6931 ha->tgt.atio_ring_index = 0;
6932 ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
6934 ha->tgt.atio_ring_ptr++;
6936 pkt->u.raw.signature = cpu_to_le32(ATIO_PROCESSED);
6937 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6942 /* Adjust ring index */
6943 wrt_reg_dword(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index);
6947 qlt_24xx_config_rings(struct scsi_qla_host *vha)
6949 struct qla_hw_data *ha = vha->hw;
6950 struct qla_msix_entry *msix = &ha->msix_entries[2];
6951 struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb;
6953 if (!QLA_TGT_MODE_ENABLED())
6956 wrt_reg_dword(ISP_ATIO_Q_IN(vha), 0);
6957 wrt_reg_dword(ISP_ATIO_Q_OUT(vha), 0);
6958 rd_reg_dword(ISP_ATIO_Q_OUT(vha));
6960 if (ha->flags.msix_enabled) {
6961 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
6962 if (IS_QLA2071(ha)) {
6963 /* 4 ports Baker: Enable Interrupt Handshake */
6965 icb->firmware_options_2 |= cpu_to_le32(BIT_26);
6967 icb->msix_atio = cpu_to_le16(msix->entry);
6968 icb->firmware_options_2 &= cpu_to_le32(~BIT_26);
6970 ql_dbg(ql_dbg_init, vha, 0xf072,
6971 "Registering ICB vector 0x%x for atio que.\n",
6976 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
6978 icb->firmware_options_2 |= cpu_to_le32(BIT_26);
6979 ql_dbg(ql_dbg_init, vha, 0xf072,
6980 "%s: Use INTx for ATIOQ.\n", __func__);
6986 qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
6988 struct qla_hw_data *ha = vha->hw;
6991 if (!QLA_TGT_MODE_ENABLED())
6994 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6995 if (!ha->tgt.saved_set) {
6996 /* We save only once */
6997 ha->tgt.saved_exchange_count = nv->exchange_count;
6998 ha->tgt.saved_firmware_options_1 =
6999 nv->firmware_options_1;
7000 ha->tgt.saved_firmware_options_2 =
7001 nv->firmware_options_2;
7002 ha->tgt.saved_firmware_options_3 =
7003 nv->firmware_options_3;
7004 ha->tgt.saved_set = 1;
7007 if (qla_tgt_mode_enabled(vha))
7008 nv->exchange_count = cpu_to_le16(0xFFFF);
7010 nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
7012 /* Enable target mode */
7013 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
7015 /* Disable ini mode, if requested */
7016 if (qla_tgt_mode_enabled(vha))
7017 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
7019 /* Disable Full Login after LIP */
7020 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
7021 /* Enable initial LIP */
7022 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
7023 if (ql2xtgt_tape_enable)
7024 /* Enable FC Tape support */
7025 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7027 /* Disable FC Tape support */
7028 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
7030 /* Disable Full Login after LIP */
7031 nv->host_p &= cpu_to_le32(~BIT_10);
7034 * clear BIT 15 explicitly as we have seen at least
7035 * a couple of instances where this was set and this
7036 * was causing the firmware to not be initialized.
7038 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
7039 /* Enable target PRLI control */
7040 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
7042 if (IS_QLA25XX(ha)) {
7043 /* Change Loop-prefer to Pt-Pt */
7044 tmp = ~(BIT_4|BIT_5|BIT_6);
7045 nv->firmware_options_2 &= cpu_to_le32(tmp);
7047 nv->firmware_options_2 |= cpu_to_le32(tmp);
7050 if (ha->tgt.saved_set) {
7051 nv->exchange_count = ha->tgt.saved_exchange_count;
7052 nv->firmware_options_1 =
7053 ha->tgt.saved_firmware_options_1;
7054 nv->firmware_options_2 =
7055 ha->tgt.saved_firmware_options_2;
7056 nv->firmware_options_3 =
7057 ha->tgt.saved_firmware_options_3;
7062 if (ha->base_qpair->enable_class_2) {
7063 if (vha->flags.init_done)
7064 fc_host_supported_classes(vha->host) =
7065 FC_COS_CLASS2 | FC_COS_CLASS3;
7067 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
7069 if (vha->flags.init_done)
7070 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
7072 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
7077 qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha,
7078 struct init_cb_24xx *icb)
7080 struct qla_hw_data *ha = vha->hw;
7082 if (!QLA_TGT_MODE_ENABLED())
7085 if (ha->tgt.node_name_set) {
7086 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
7087 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
7092 qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
7094 struct qla_hw_data *ha = vha->hw;
7097 if (!QLA_TGT_MODE_ENABLED())
7100 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
7101 if (!ha->tgt.saved_set) {
7102 /* We save only once */
7103 ha->tgt.saved_exchange_count = nv->exchange_count;
7104 ha->tgt.saved_firmware_options_1 =
7105 nv->firmware_options_1;
7106 ha->tgt.saved_firmware_options_2 =
7107 nv->firmware_options_2;
7108 ha->tgt.saved_firmware_options_3 =
7109 nv->firmware_options_3;
7110 ha->tgt.saved_set = 1;
7113 if (qla_tgt_mode_enabled(vha))
7114 nv->exchange_count = cpu_to_le16(0xFFFF);
7116 nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
7118 /* Enable target mode */
7119 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
7121 /* Disable ini mode, if requested */
7122 if (qla_tgt_mode_enabled(vha))
7123 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
7124 /* Disable Full Login after LIP */
7125 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
7126 /* Enable initial LIP */
7127 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
7129 * clear BIT 15 explicitly as we have seen at
7130 * least a couple of instances where this was set
7131 * and this was causing the firmware to not be
7134 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
7135 if (ql2xtgt_tape_enable)
7136 /* Enable FC tape support */
7137 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7139 /* Disable FC tape support */
7140 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
7142 /* Disable Full Login after LIP */
7143 nv->host_p &= cpu_to_le32(~BIT_10);
7144 /* Enable target PRLI control */
7145 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
7147 /* Change Loop-prefer to Pt-Pt */
7148 tmp = ~(BIT_4|BIT_5|BIT_6);
7149 nv->firmware_options_2 &= cpu_to_le32(tmp);
7151 nv->firmware_options_2 |= cpu_to_le32(tmp);
7153 if (ha->tgt.saved_set) {
7154 nv->exchange_count = ha->tgt.saved_exchange_count;
7155 nv->firmware_options_1 =
7156 ha->tgt.saved_firmware_options_1;
7157 nv->firmware_options_2 =
7158 ha->tgt.saved_firmware_options_2;
7159 nv->firmware_options_3 =
7160 ha->tgt.saved_firmware_options_3;
7165 if (ha->base_qpair->enable_class_2) {
7166 if (vha->flags.init_done)
7167 fc_host_supported_classes(vha->host) =
7168 FC_COS_CLASS2 | FC_COS_CLASS3;
7170 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
7172 if (vha->flags.init_done)
7173 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
7175 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
7180 qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha,
7181 struct init_cb_81xx *icb)
7183 struct qla_hw_data *ha = vha->hw;
7185 if (!QLA_TGT_MODE_ENABLED())
7188 if (ha->tgt.node_name_set) {
7189 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
7190 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
7195 qlt_83xx_iospace_config(struct qla_hw_data *ha)
7197 if (!QLA_TGT_MODE_ENABLED())
7200 ha->msix_count += 1; /* For ATIO Q */
7205 qlt_modify_vp_config(struct scsi_qla_host *vha,
7206 struct vp_config_entry_24xx *vpmod)
7208 /* enable target mode. Bit5 = 1 => disable */
7209 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
7210 vpmod->options_idx1 &= ~BIT_5;
7212 /* Disable ini mode, if requested. bit4 = 1 => disable */
7213 if (qla_tgt_mode_enabled(vha))
7214 vpmod->options_idx1 &= ~BIT_4;
7218 qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha)
7220 mutex_init(&base_vha->vha_tgt.tgt_mutex);
7221 if (!QLA_TGT_MODE_ENABLED())
7224 if ((ql2xenablemsix == 0) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
7226 ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in;
7227 ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out;
7229 ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in;
7230 ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out;
7233 mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex);
7235 INIT_LIST_HEAD(&base_vha->unknown_atio_list);
7236 INIT_DELAYED_WORK(&base_vha->unknown_atio_work,
7237 qlt_unknown_atio_work_fn);
7239 qlt_clear_mode(base_vha);
7241 qlt_update_vp_map(base_vha, SET_VP_IDX);
7245 qla83xx_msix_atio_q(int irq, void *dev_id)
7247 struct rsp_que *rsp;
7248 scsi_qla_host_t *vha;
7249 struct qla_hw_data *ha;
7250 unsigned long flags;
7252 rsp = (struct rsp_que *) dev_id;
7254 vha = pci_get_drvdata(ha->pdev);
7256 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7258 qlt_24xx_process_atio_queue(vha, 0);
7260 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7266 qlt_handle_abts_recv_work(struct work_struct *work)
7268 struct qla_tgt_sess_op *op = container_of(work,
7269 struct qla_tgt_sess_op, work);
7270 scsi_qla_host_t *vha = op->vha;
7271 struct qla_hw_data *ha = vha->hw;
7272 unsigned long flags;
7274 if (qla2x00_reset_active(vha) ||
7275 (op->chip_reset != ha->base_qpair->chip_reset))
7278 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7279 qlt_24xx_process_atio_queue(vha, 0);
7280 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7282 spin_lock_irqsave(&ha->hardware_lock, flags);
7283 qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio);
7284 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7290 qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp,
7293 struct qla_tgt_sess_op *op;
7295 op = kzalloc(sizeof(*op), GFP_ATOMIC);
7298 /* do not reach for ATIO queue here. This is best effort err
7299 * recovery at this point.
7301 qlt_response_pkt_all_vps(vha, rsp, pkt);
7305 memcpy(&op->atio, pkt, sizeof(*pkt));
7307 op->chip_reset = vha->hw->base_qpair->chip_reset;
7309 INIT_WORK(&op->work, qlt_handle_abts_recv_work);
7310 queue_work(qla_tgt_wq, &op->work);
7315 qlt_mem_alloc(struct qla_hw_data *ha)
7317 if (!QLA_TGT_MODE_ENABLED())
7320 ha->tgt.tgt_vp_map = kcalloc(MAX_MULTI_ID_FABRIC,
7321 sizeof(struct qla_tgt_vp_map),
7323 if (!ha->tgt.tgt_vp_map)
7326 ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev,
7327 (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp),
7328 &ha->tgt.atio_dma, GFP_KERNEL);
7329 if (!ha->tgt.atio_ring) {
7330 kfree(ha->tgt.tgt_vp_map);
7337 qlt_mem_free(struct qla_hw_data *ha)
7339 if (!QLA_TGT_MODE_ENABLED())
7342 if (ha->tgt.atio_ring) {
7343 dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) *
7344 sizeof(struct atio_from_isp), ha->tgt.atio_ring,
7347 ha->tgt.atio_ring = NULL;
7348 ha->tgt.atio_dma = 0;
7349 kfree(ha->tgt.tgt_vp_map);
7350 ha->tgt.tgt_vp_map = NULL;
7353 /* vport_slock to be held by the caller */
7355 qlt_update_vp_map(struct scsi_qla_host *vha, int cmd)
7361 key = vha->d_id.b24;
7365 if (!QLA_TGT_MODE_ENABLED())
7367 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha;
7370 slot = btree_lookup32(&vha->hw->host_map, key);
7372 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018,
7373 "Save vha in host_map %p %06x\n", vha, key);
7374 rc = btree_insert32(&vha->hw->host_map,
7375 key, vha, GFP_ATOMIC);
7377 ql_log(ql_log_info, vha, 0xd03e,
7378 "Unable to insert s_id into host_map: %06x\n",
7382 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019,
7383 "replace existing vha in host_map %p %06x\n", vha, key);
7384 btree_update32(&vha->hw->host_map, key, vha);
7387 if (!QLA_TGT_MODE_ENABLED())
7389 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL;
7392 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a,
7393 "clear vha in host_map %p %06x\n", vha, key);
7394 slot = btree_lookup32(&vha->hw->host_map, key);
7396 btree_remove32(&vha->hw->host_map, key);
7402 void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id)
7405 if (!vha->d_id.b24) {
7407 qlt_update_vp_map(vha, SET_AL_PA);
7408 } else if (vha->d_id.b24 != id.b24) {
7409 qlt_update_vp_map(vha, RESET_AL_PA);
7411 qlt_update_vp_map(vha, SET_AL_PA);
7415 static int __init qlt_parse_ini_mode(void)
7417 if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0)
7418 ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
7419 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0)
7420 ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED;
7421 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0)
7422 ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED;
7423 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0)
7424 ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL;
7431 int __init qlt_init(void)
7435 BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
7436 BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
7438 if (!qlt_parse_ini_mode()) {
7439 ql_log(ql_log_fatal, NULL, 0xe06b,
7440 "qlt_parse_ini_mode() failed\n");
7444 if (!QLA_TGT_MODE_ENABLED())
7447 qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep",
7448 sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct
7449 qla_tgt_mgmt_cmd), 0, NULL);
7450 if (!qla_tgt_mgmt_cmd_cachep) {
7451 ql_log(ql_log_fatal, NULL, 0xd04b,
7452 "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
7456 qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep",
7457 sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t),
7460 if (!qla_tgt_plogi_cachep) {
7461 ql_log(ql_log_fatal, NULL, 0xe06d,
7462 "kmem_cache_create for qla_tgt_plogi_cachep failed\n");
7464 goto out_mgmt_cmd_cachep;
7467 qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab,
7468 mempool_free_slab, qla_tgt_mgmt_cmd_cachep);
7469 if (!qla_tgt_mgmt_cmd_mempool) {
7470 ql_log(ql_log_fatal, NULL, 0xe06e,
7471 "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
7473 goto out_plogi_cachep;
7476 qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0);
7478 ql_log(ql_log_fatal, NULL, 0xe06f,
7479 "alloc_workqueue for qla_tgt_wq failed\n");
7481 goto out_cmd_mempool;
7484 * Return 1 to signal that initiator-mode is being disabled
7486 return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0;
7489 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7491 kmem_cache_destroy(qla_tgt_plogi_cachep);
7492 out_mgmt_cmd_cachep:
7493 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
7499 if (!QLA_TGT_MODE_ENABLED())
7502 destroy_workqueue(qla_tgt_wq);
7503 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7504 kmem_cache_destroy(qla_tgt_plogi_cachep);
7505 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);