1 // SPDX-License-Identifier: GPL-2.0-only
3 * qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx
5 * based on qla2x00t.c code:
7 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
8 * Copyright (C) 2004 - 2005 Leonid Stoljar
9 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
10 * Copyright (C) 2006 - 2010 ID7 Ltd.
12 * Forward port and refactoring to modern qla2xxx and target/configfs
14 * Copyright (C) 2010-2013 Nicholas A. Bellinger <nab@kernel.org>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/types.h>
20 #include <linux/blkdev.h>
21 #include <linux/interrupt.h>
22 #include <linux/pci.h>
23 #include <linux/delay.h>
24 #include <linux/list.h>
25 #include <linux/workqueue.h>
26 #include <asm/unaligned.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_tcq.h>
32 #include "qla_target.h"
34 static int ql2xtgt_tape_enable;
35 module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR);
36 MODULE_PARM_DESC(ql2xtgt_tape_enable,
37 "Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
39 static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
40 module_param(qlini_mode, charp, S_IRUGO);
41 MODULE_PARM_DESC(qlini_mode,
42 "Determines when initiator mode will be enabled. Possible values: "
43 "\"exclusive\" - initiator mode will be enabled on load, "
44 "disabled on enabling target mode and then on disabling target mode "
46 "\"disabled\" - initiator mode will never be enabled; "
47 "\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
49 "\"enabled\" (default) - initiator mode will always stay enabled.");
51 static int ql_dm_tgt_ex_pct = 0;
52 module_param(ql_dm_tgt_ex_pct, int, S_IRUGO|S_IWUSR);
53 MODULE_PARM_DESC(ql_dm_tgt_ex_pct,
54 "For Dual Mode (qlini_mode=dual), this parameter determines "
55 "the percentage of exchanges/cmds FW will allocate resources "
59 module_param(ql2xuctrlirq, int, 0644);
60 MODULE_PARM_DESC(ql2xuctrlirq,
61 "User to control IRQ placement via smp_affinity."
62 "Valid with qlini_mode=disabled."
63 "1(default): enable");
65 int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
67 static int qla_sam_status = SAM_STAT_BUSY;
68 static int tc_sam_status = SAM_STAT_TASK_SET_FULL; /* target core */
71 * From scsi/fc/fc_fcp.h
73 enum fcp_resp_rsp_codes {
75 FCP_DATA_LEN_INVALID = 1,
76 FCP_CMND_FIELDS_INVALID = 2,
77 FCP_DATA_PARAM_MISMATCH = 3,
80 FCP_TMF_INVALID_LUN = 9,
84 * fc_pri_ta from scsi/fc/fc_fcp.h
86 #define FCP_PTA_SIMPLE 0 /* simple task attribute */
87 #define FCP_PTA_HEADQ 1 /* head of queue task attribute */
88 #define FCP_PTA_ORDERED 2 /* ordered task attribute */
89 #define FCP_PTA_ACA 4 /* auto. contingent allegiance */
90 #define FCP_PTA_MASK 7 /* mask for task attribute field */
91 #define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */
92 #define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */
95 * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which
96 * must be called under HW lock and could unlock/lock it inside.
97 * It isn't an issue, since in the current implementation on the time when
98 * those functions are called:
100 * - Either context is IRQ and only IRQ handler can modify HW data,
101 * including rings related fields,
103 * - Or access to target mode variables from struct qla_tgt doesn't
104 * cross those functions boundaries, except tgt_stop, which
105 * additionally protected by irq_cmd_count.
107 /* Predefs for callbacks handed to qla2xxx LLD */
108 static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
109 struct atio_from_isp *pkt, uint8_t);
110 static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp,
112 static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
113 int fn, void *iocb, int flags);
114 static void qlt_send_term_exchange(struct qla_qpair *, struct qla_tgt_cmd
115 *cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort);
116 static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
117 struct atio_from_isp *atio, uint16_t status, int qfull);
118 static void qlt_disable_vha(struct scsi_qla_host *vha);
119 static void qlt_clear_tgt_db(struct qla_tgt *tgt);
120 static void qlt_send_notify_ack(struct qla_qpair *qpair,
121 struct imm_ntfy_from_isp *ntfy,
122 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
123 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan);
124 static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
125 struct imm_ntfy_from_isp *imm, int ha_locked);
126 static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
127 fc_port_t *fcport, bool local);
128 void qlt_unreg_sess(struct fc_port *sess);
129 static void qlt_24xx_handle_abts(struct scsi_qla_host *,
130 struct abts_recv_from_24xx *);
131 static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *,
133 static int qlt_check_reserve_free_req(struct qla_qpair *qpair, uint32_t);
134 static inline uint32_t qlt_make_handle(struct qla_qpair *);
139 static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
140 struct kmem_cache *qla_tgt_plogi_cachep;
141 static mempool_t *qla_tgt_mgmt_cmd_mempool;
142 static struct workqueue_struct *qla_tgt_wq;
143 static DEFINE_MUTEX(qla_tgt_mutex);
144 static LIST_HEAD(qla_tgt_glist);
146 static const char *prot_op_str(u32 prot_op)
149 case TARGET_PROT_NORMAL: return "NORMAL";
150 case TARGET_PROT_DIN_INSERT: return "DIN_INSERT";
151 case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT";
152 case TARGET_PROT_DIN_STRIP: return "DIN_STRIP";
153 case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP";
154 case TARGET_PROT_DIN_PASS: return "DIN_PASS";
155 case TARGET_PROT_DOUT_PASS: return "DOUT_PASS";
156 default: return "UNKNOWN";
160 /* This API intentionally takes dest as a parameter, rather than returning
161 * int value to avoid caller forgetting to issue wmb() after the store */
162 void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
164 scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
165 *dest = atomic_inc_return(&base_vha->generation_tick);
170 /* Might release hw lock, then reaquire!! */
171 static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
173 /* Send marker if required */
174 if (unlikely(vha->marker_needed != 0)) {
175 int rc = qla2x00_issue_marker(vha, vha_locked);
177 if (rc != QLA_SUCCESS) {
178 ql_dbg(ql_dbg_tgt, vha, 0xe03d,
179 "qla_target(%d): issue_marker() failed\n",
188 struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha,
191 struct scsi_qla_host *host;
194 if (vha->d_id.b.area == d_id.area &&
195 vha->d_id.b.domain == d_id.domain &&
196 vha->d_id.b.al_pa == d_id.al_pa)
199 key = be_to_port_id(d_id).b24;
201 host = btree_lookup32(&vha->hw->tgt.host_map, key);
203 ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
204 "Unable to find host %06x\n", key);
210 struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha,
213 struct qla_hw_data *ha = vha->hw;
215 if (vha->vp_idx == vp_idx)
218 BUG_ON(ha->tgt.tgt_vp_map == NULL);
219 if (likely(test_bit(vp_idx, ha->vp_idx_map)))
220 return ha->tgt.tgt_vp_map[vp_idx].vha;
225 static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha)
229 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
231 vha->hw->tgt.num_pend_cmds++;
232 if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds)
233 vha->qla_stats.stat_max_pend_cmds =
234 vha->hw->tgt.num_pend_cmds;
235 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
237 static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha)
241 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
242 vha->hw->tgt.num_pend_cmds--;
243 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
247 static void qlt_queue_unknown_atio(scsi_qla_host_t *vha,
248 struct atio_from_isp *atio, uint8_t ha_locked)
250 struct qla_tgt_sess_op *u;
251 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
255 ql_dbg(ql_dbg_async, vha, 0x502c,
256 "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
261 u = kzalloc(sizeof(*u), GFP_ATOMIC);
266 memcpy(&u->atio, atio, sizeof(*atio));
267 INIT_LIST_HEAD(&u->cmd_list);
269 spin_lock_irqsave(&vha->cmd_list_lock, flags);
270 list_add_tail(&u->cmd_list, &vha->unknown_atio_list);
271 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
273 schedule_delayed_work(&vha->unknown_atio_work, 1);
279 qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0);
283 static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
286 struct qla_tgt_sess_op *u, *t;
287 scsi_qla_host_t *host;
288 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
292 list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) {
294 ql_dbg(ql_dbg_async, vha, 0x502e,
295 "Freeing unknown %s %p, because of Abort\n",
297 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
298 &u->atio, ha_locked, 0);
302 host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
304 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f,
305 "Requeuing unknown ATIO_TYPE7 %p\n", u);
306 qlt_24xx_atio_pkt(host, &u->atio, ha_locked);
307 } else if (tgt->tgt_stop) {
308 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a,
309 "Freeing unknown %s %p, because tgt is being stopped\n",
311 qlt_send_term_exchange(vha->hw->base_qpair, NULL,
312 &u->atio, ha_locked, 0);
314 ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
315 "Reschedule u %p, vha %p, host %p\n", u, vha, host);
318 schedule_delayed_work(&vha->unknown_atio_work,
325 spin_lock_irqsave(&vha->cmd_list_lock, flags);
326 list_del(&u->cmd_list);
327 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
332 void qlt_unknown_atio_work_fn(struct work_struct *work)
334 struct scsi_qla_host *vha = container_of(to_delayed_work(work),
335 struct scsi_qla_host, unknown_atio_work);
337 qlt_try_to_dequeue_unknown_atios(vha, 0);
340 static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
341 struct atio_from_isp *atio, uint8_t ha_locked)
343 ql_dbg(ql_dbg_tgt, vha, 0xe072,
344 "%s: qla_target(%d): type %x ox_id %04x\n",
345 __func__, vha->vp_idx, atio->u.raw.entry_type,
346 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
348 switch (atio->u.raw.entry_type) {
351 struct scsi_qla_host *host = qlt_find_host_by_d_id(vha,
352 atio->u.isp24.fcp_hdr.d_id);
353 if (unlikely(NULL == host)) {
354 ql_dbg(ql_dbg_tgt, vha, 0xe03e,
355 "qla_target(%d): Received ATIO_TYPE7 "
356 "with unknown d_id %x:%x:%x\n", vha->vp_idx,
357 atio->u.isp24.fcp_hdr.d_id.domain,
358 atio->u.isp24.fcp_hdr.d_id.area,
359 atio->u.isp24.fcp_hdr.d_id.al_pa);
362 qlt_queue_unknown_atio(vha, atio, ha_locked);
365 if (unlikely(!list_empty(&vha->unknown_atio_list)))
366 qlt_try_to_dequeue_unknown_atios(vha, ha_locked);
368 qlt_24xx_atio_pkt(host, atio, ha_locked);
372 case IMMED_NOTIFY_TYPE:
374 struct scsi_qla_host *host = vha;
375 struct imm_ntfy_from_isp *entry =
376 (struct imm_ntfy_from_isp *)atio;
378 qlt_issue_marker(vha, ha_locked);
380 if ((entry->u.isp24.vp_index != 0xFF) &&
381 (entry->u.isp24.nport_handle != cpu_to_le16(0xFFFF))) {
382 host = qlt_find_host_by_vp_idx(vha,
383 entry->u.isp24.vp_index);
384 if (unlikely(!host)) {
385 ql_dbg(ql_dbg_tgt, vha, 0xe03f,
386 "qla_target(%d): Received "
387 "ATIO (IMMED_NOTIFY_TYPE) "
388 "with unknown vp_index %d\n",
389 vha->vp_idx, entry->u.isp24.vp_index);
393 qlt_24xx_atio_pkt(host, atio, ha_locked);
397 case VP_RPT_ID_IOCB_TYPE:
398 qla24xx_report_id_acquisition(vha,
399 (struct vp_rpt_id_entry_24xx *)atio);
404 struct abts_recv_from_24xx *entry =
405 (struct abts_recv_from_24xx *)atio;
406 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
410 if (unlikely(!host)) {
411 ql_dbg(ql_dbg_tgt, vha, 0xe00a,
412 "qla_target(%d): Response pkt (ABTS_RECV_24XX) "
413 "received, with unknown vp_index %d\n",
414 vha->vp_idx, entry->vp_index);
418 spin_lock_irqsave(&host->hw->hardware_lock, flags);
419 qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio);
421 spin_unlock_irqrestore(&host->hw->hardware_lock, flags);
425 /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */
428 ql_dbg(ql_dbg_tgt, vha, 0xe040,
429 "qla_target(%d): Received unknown ATIO atio "
430 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
437 void qlt_response_pkt_all_vps(struct scsi_qla_host *vha,
438 struct rsp_que *rsp, response_t *pkt)
440 switch (pkt->entry_type) {
442 ql_dbg(ql_dbg_tgt, vha, 0xe073,
443 "qla_target(%d):%s: CRC2 Response pkt\n",
444 vha->vp_idx, __func__);
448 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
449 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
451 if (unlikely(!host)) {
452 ql_dbg(ql_dbg_tgt, vha, 0xe041,
453 "qla_target(%d): Response pkt (CTIO_TYPE7) "
454 "received, with unknown vp_index %d\n",
455 vha->vp_idx, entry->vp_index);
458 qlt_response_pkt(host, rsp, pkt);
462 case IMMED_NOTIFY_TYPE:
464 struct scsi_qla_host *host;
465 struct imm_ntfy_from_isp *entry =
466 (struct imm_ntfy_from_isp *)pkt;
468 host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index);
469 if (unlikely(!host)) {
470 ql_dbg(ql_dbg_tgt, vha, 0xe042,
471 "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) "
472 "received, with unknown vp_index %d\n",
473 vha->vp_idx, entry->u.isp24.vp_index);
476 qlt_response_pkt(host, rsp, pkt);
480 case NOTIFY_ACK_TYPE:
482 struct scsi_qla_host *host = vha;
483 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
485 if (0xFF != entry->u.isp24.vp_index) {
486 host = qlt_find_host_by_vp_idx(vha,
487 entry->u.isp24.vp_index);
488 if (unlikely(!host)) {
489 ql_dbg(ql_dbg_tgt, vha, 0xe043,
490 "qla_target(%d): Response "
491 "pkt (NOTIFY_ACK_TYPE) "
492 "received, with unknown "
493 "vp_index %d\n", vha->vp_idx,
494 entry->u.isp24.vp_index);
498 qlt_response_pkt(host, rsp, pkt);
504 struct abts_recv_from_24xx *entry =
505 (struct abts_recv_from_24xx *)pkt;
506 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
508 if (unlikely(!host)) {
509 ql_dbg(ql_dbg_tgt, vha, 0xe044,
510 "qla_target(%d): Response pkt "
511 "(ABTS_RECV_24XX) received, with unknown "
512 "vp_index %d\n", vha->vp_idx, entry->vp_index);
515 qlt_response_pkt(host, rsp, pkt);
521 struct abts_resp_to_24xx *entry =
522 (struct abts_resp_to_24xx *)pkt;
523 struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha,
525 if (unlikely(!host)) {
526 ql_dbg(ql_dbg_tgt, vha, 0xe045,
527 "qla_target(%d): Response pkt "
528 "(ABTS_RECV_24XX) received, with unknown "
529 "vp_index %d\n", vha->vp_idx, entry->vp_index);
532 qlt_response_pkt(host, rsp, pkt);
536 qlt_response_pkt(vha, rsp, pkt);
543 * All qlt_plogi_ack_t operations are protected by hardware_lock
545 static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport,
546 struct imm_ntfy_from_isp *ntfy, int type)
548 struct qla_work_evt *e;
550 e = qla2x00_alloc_work(vha, QLA_EVT_NACK);
552 return QLA_FUNCTION_FAILED;
554 e->u.nack.fcport = fcport;
555 e->u.nack.type = type;
556 memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp));
557 return qla2x00_post_work(vha, e);
560 static void qla2x00_async_nack_sp_done(srb_t *sp, int res)
562 struct scsi_qla_host *vha = sp->vha;
565 ql_dbg(ql_dbg_disc, vha, 0x20f2,
566 "Async done-%s res %x %8phC type %d\n",
567 sp->name, res, sp->fcport->port_name, sp->type);
569 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
570 sp->fcport->flags &= ~FCF_ASYNC_SENT;
571 sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
575 sp->fcport->login_gen++;
576 sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
577 sp->fcport->logout_on_delete = 1;
578 sp->fcport->plogi_nack_done_deadline = jiffies + HZ;
579 sp->fcport->send_els_logo = 0;
583 sp->fcport->fw_login_state = DSC_LS_PRLI_COMP;
584 sp->fcport->deleted = 0;
585 sp->fcport->send_els_logo = 0;
587 if (!sp->fcport->login_succ &&
588 !IS_SW_RESV_ADDR(sp->fcport->d_id)) {
589 sp->fcport->login_succ = 1;
592 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
593 qla24xx_sched_upd_fcport(sp->fcport);
594 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
596 sp->fcport->login_retry = 0;
597 qla2x00_set_fcport_disc_state(sp->fcport,
599 sp->fcport->deleted = 0;
600 sp->fcport->logout_on_delete = 1;
605 sp->fcport->login_gen++;
606 sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
607 qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE);
610 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
615 int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport,
616 struct imm_ntfy_from_isp *ntfy, int type)
618 int rval = QLA_FUNCTION_FAILED;
622 fcport->flags |= FCF_ASYNC_SENT;
625 fcport->fw_login_state = DSC_LS_PLOGI_PEND;
629 fcport->fw_login_state = DSC_LS_PRLI_PEND;
634 fcport->fw_login_state = DSC_LS_LOGO_PEND;
639 sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
646 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
647 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
649 sp->u.iocb_cmd.u.nack.ntfy = ntfy;
650 sp->done = qla2x00_async_nack_sp_done;
652 ql_dbg(ql_dbg_disc, vha, 0x20f4,
653 "Async-%s %8phC hndl %x %s\n",
654 sp->name, fcport->port_name, sp->handle, c);
656 rval = qla2x00_start_sp(sp);
657 if (rval != QLA_SUCCESS)
665 fcport->flags &= ~FCF_ASYNC_SENT;
669 void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
673 switch (e->u.nack.type) {
675 t = e->u.nack.fcport;
676 flush_work(&t->del_work);
677 flush_work(&t->free_work);
678 mutex_lock(&vha->vha_tgt.tgt_mutex);
679 t = qlt_create_sess(vha, e->u.nack.fcport, 0);
680 mutex_unlock(&vha->vha_tgt.tgt_mutex);
682 ql_log(ql_log_info, vha, 0xd034,
683 "%s create sess success %p", __func__, t);
684 /* create sess has an extra kref */
685 vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport);
689 qla24xx_async_notify_ack(vha, e->u.nack.fcport,
690 (struct imm_ntfy_from_isp *)e->u.nack.iocb, e->u.nack.type);
693 void qla24xx_delete_sess_fn(struct work_struct *work)
695 fc_port_t *fcport = container_of(work, struct fc_port, del_work);
696 struct qla_hw_data *ha = fcport->vha->hw;
698 if (fcport->se_sess) {
699 ha->tgt.tgt_ops->shutdown_sess(fcport);
700 ha->tgt.tgt_ops->put_sess(fcport);
702 qlt_unreg_sess(fcport);
707 * Called from qla2x00_reg_remote_port()
709 void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
711 struct qla_hw_data *ha = vha->hw;
712 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
713 struct fc_port *sess = fcport;
716 if (!vha->hw->tgt.tgt_ops)
719 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
721 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
725 if (fcport->disc_state == DSC_DELETE_PEND) {
726 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
730 if (!sess->se_sess) {
731 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
733 mutex_lock(&vha->vha_tgt.tgt_mutex);
734 sess = qlt_create_sess(vha, fcport, false);
735 mutex_unlock(&vha->vha_tgt.tgt_mutex);
737 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
739 if (fcport->fw_login_state == DSC_LS_PRLI_COMP) {
740 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
744 if (!kref_get_unless_zero(&sess->sess_kref)) {
745 ql_dbg(ql_dbg_disc, vha, 0x2107,
746 "%s: kref_get fail sess %8phC \n",
747 __func__, sess->port_name);
748 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
752 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c,
753 "qla_target(%u): %ssession for port %8phC "
754 "(loop ID %d) reappeared\n", vha->vp_idx,
755 sess->local ? "local " : "", sess->port_name, sess->loop_id);
757 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007,
758 "Reappeared sess %p\n", sess);
760 ha->tgt.tgt_ops->update_sess(sess, fcport->d_id,
762 (fcport->flags & FCF_CONF_COMP_SUPPORTED));
765 if (sess && sess->local) {
766 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d,
767 "qla_target(%u): local session for "
768 "port %8phC (loop ID %d) became global\n", vha->vp_idx,
769 fcport->port_name, sess->loop_id);
772 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
774 ha->tgt.tgt_ops->put_sess(sess);
778 * This is a zero-base ref-counting solution, since hardware_lock
779 * guarantees that ref_count is not modified concurrently.
780 * Upon successful return content of iocb is undefined
782 static struct qlt_plogi_ack_t *
783 qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
784 struct imm_ntfy_from_isp *iocb)
786 struct qlt_plogi_ack_t *pla;
788 lockdep_assert_held(&vha->hw->hardware_lock);
790 list_for_each_entry(pla, &vha->plogi_ack_list, list) {
791 if (pla->id.b24 == id->b24) {
792 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x210d,
793 "%s %d %8phC Term INOT due to new INOT",
795 pla->iocb.u.isp24.port_name);
796 qlt_send_term_imm_notif(vha, &pla->iocb, 1);
797 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
802 pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC);
804 ql_dbg(ql_dbg_async, vha, 0x5088,
805 "qla_target(%d): Allocation of plogi_ack failed\n",
810 memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
812 list_add_tail(&pla->list, &vha->plogi_ack_list);
817 void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
818 struct qlt_plogi_ack_t *pla)
820 struct imm_ntfy_from_isp *iocb = &pla->iocb;
823 fc_port_t *fcport = pla->fcport;
825 BUG_ON(!pla->ref_count);
831 ql_dbg(ql_dbg_disc, vha, 0x5089,
832 "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x"
833 " exch %#x ox_id %#x\n", iocb->u.isp24.port_name,
834 iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1],
835 iocb->u.isp24.port_id[0],
836 le16_to_cpu(iocb->u.isp24.nport_handle),
837 iocb->u.isp24.exchange_address, iocb->ox_id);
839 port_id.b.domain = iocb->u.isp24.port_id[2];
840 port_id.b.area = iocb->u.isp24.port_id[1];
841 port_id.b.al_pa = iocb->u.isp24.port_id[0];
842 port_id.b.rsvd_1 = 0;
844 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
846 fcport->loop_id = loop_id;
847 fcport->d_id = port_id;
848 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
849 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI);
851 qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI);
853 list_for_each_entry(fcport, &vha->vp_fcports, list) {
854 if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla)
855 fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
856 if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla)
857 fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
860 list_del(&pla->list);
861 kmem_cache_free(qla_tgt_plogi_cachep, pla);
865 qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla,
866 struct fc_port *sess, enum qlt_plogi_link_t link)
868 struct imm_ntfy_from_isp *iocb = &pla->iocb;
869 /* Inc ref_count first because link might already be pointing at pla */
872 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097,
873 "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC"
874 " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n",
875 sess, link, sess->port_name,
876 iocb->u.isp24.port_name, iocb->u.isp24.port_id[2],
877 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
878 pla->ref_count, pla, link);
880 if (link == QLT_PLOGI_LINK_CONFLICT) {
881 switch (sess->disc_state) {
883 case DSC_DELETE_PEND:
891 if (sess->plogi_link[link])
892 qlt_plogi_ack_unref(vha, sess->plogi_link[link]);
894 if (link == QLT_PLOGI_LINK_SAME_WWN)
897 sess->plogi_link[link] = pla;
901 /* These fields must be initialized by the caller */
904 * number of cmds dropped while we were waiting for
905 * initiator to ack LOGO initialize to 1 if LOGO is
906 * triggered by a command, otherwise, to 0
910 /* These fields are used by callee */
911 struct list_head list;
915 qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
917 qlt_port_logo_t *tmp;
920 mutex_lock(&vha->vha_tgt.tgt_mutex);
922 list_for_each_entry(tmp, &vha->logo_list, list) {
923 if (tmp->id.b24 == logo->id.b24) {
924 tmp->cmd_count += logo->cmd_count;
925 mutex_unlock(&vha->vha_tgt.tgt_mutex);
930 list_add_tail(&logo->list, &vha->logo_list);
932 mutex_unlock(&vha->vha_tgt.tgt_mutex);
934 res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id);
936 mutex_lock(&vha->vha_tgt.tgt_mutex);
937 list_del(&logo->list);
938 mutex_unlock(&vha->vha_tgt.tgt_mutex);
940 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098,
941 "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n",
942 logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa,
943 logo->cmd_count, res);
946 void qlt_free_session_done(struct work_struct *work)
948 struct fc_port *sess = container_of(work, struct fc_port,
950 struct qla_tgt *tgt = sess->tgt;
951 struct scsi_qla_host *vha = sess->vha;
952 struct qla_hw_data *ha = vha->hw;
954 bool logout_started = false;
955 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
956 struct qlt_plogi_ack_t *own =
957 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
959 ql_dbg(ql_dbg_disc, vha, 0xf084,
960 "%s: se_sess %p / sess %p from port %8phC loop_id %#04x"
961 " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n",
962 __func__, sess->se_sess, sess, sess->port_name, sess->loop_id,
963 sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa,
964 sess->logout_on_delete, sess->keep_nport_handle,
965 sess->send_els_logo);
967 if (!IS_SW_RESV_ADDR(sess->d_id)) {
968 qla2x00_mark_device_lost(vha, sess, 0);
970 if (sess->send_els_logo) {
971 qlt_port_logo_t logo;
973 logo.id = sess->d_id;
976 qlt_send_first_logo(vha, &logo);
977 sess->send_els_logo = 0;
980 if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
984 (own->iocb.u.isp24.status_subcode == ELS_PLOGI)) {
985 rc = qla2x00_post_async_logout_work(vha, sess,
987 if (rc != QLA_SUCCESS)
988 ql_log(ql_log_warn, vha, 0xf085,
989 "Schedule logo failed sess %p rc %d\n",
992 logout_started = true;
993 } else if (own && (own->iocb.u.isp24.status_subcode ==
994 ELS_PRLI) && ha->flags.rida_fmt2) {
995 rc = qla2x00_post_async_prlo_work(vha, sess,
997 if (rc != QLA_SUCCESS)
998 ql_log(ql_log_warn, vha, 0xf085,
999 "Schedule PRLO failed sess %p rc %d\n",
1002 logout_started = true;
1004 } /* if sess->logout_on_delete */
1006 if (sess->nvme_flag & NVME_FLAG_REGISTERED &&
1007 !(sess->nvme_flag & NVME_FLAG_DELETING)) {
1008 sess->nvme_flag |= NVME_FLAG_DELETING;
1009 qla_nvme_unregister_remote_port(sess);
1014 * Release the target session for FC Nexus from fabric module code.
1016 if (sess->se_sess != NULL)
1017 ha->tgt.tgt_ops->free_session(sess);
1019 if (logout_started) {
1020 bool traced = false;
1023 while (!READ_ONCE(sess->logout_completed)) {
1025 ql_dbg(ql_dbg_disc, vha, 0xf086,
1026 "%s: waiting for sess %p logout\n",
1033 * Driver timeout is set to 22 Sec, update count value to loop
1034 * long enough for log-out to complete before advancing. Otherwise,
1035 * straddling logout can interfere with re-login attempt.
1041 ql_dbg(ql_dbg_disc, vha, 0xf087,
1042 "%s: sess %p logout completed\n", __func__, sess);
1045 if (sess->logo_ack_needed) {
1046 sess->logo_ack_needed = 0;
1047 qla24xx_async_notify_ack(vha, sess,
1048 (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO);
1051 spin_lock_irqsave(&vha->work_lock, flags);
1052 sess->flags &= ~FCF_ASYNC_SENT;
1053 spin_unlock_irqrestore(&vha->work_lock, flags);
1055 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1056 if (sess->se_sess) {
1057 sess->se_sess = NULL;
1058 if (tgt && !IS_SW_RESV_ADDR(sess->d_id))
1062 qla2x00_set_fcport_disc_state(sess, DSC_DELETED);
1063 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1064 sess->deleted = QLA_SESS_DELETED;
1066 if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) {
1067 vha->fcport_count--;
1068 sess->login_succ = 0;
1071 qla2x00_clear_loop_id(sess);
1073 if (sess->conflict) {
1074 sess->conflict->login_pause = 0;
1075 sess->conflict = NULL;
1076 if (!test_bit(UNLOADING, &vha->dpc_flags))
1077 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1081 struct qlt_plogi_ack_t *con =
1082 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
1083 struct imm_ntfy_from_isp *iocb;
1085 own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
1089 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099,
1090 "se_sess %p / sess %p port %8phC is gone,"
1091 " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
1092 sess->se_sess, sess, sess->port_name,
1093 own ? "releasing own PLOGI" : "no own PLOGI pending",
1094 own ? own->ref_count : -1,
1095 iocb->u.isp24.port_name, con->ref_count);
1096 qlt_plogi_ack_unref(vha, con);
1097 sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
1099 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a,
1100 "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n",
1101 sess->se_sess, sess, sess->port_name,
1102 own ? "releasing own PLOGI" :
1103 "no own PLOGI pending",
1104 own ? own->ref_count : -1);
1108 sess->fw_login_state = DSC_LS_PLOGI_PEND;
1109 qlt_plogi_ack_unref(vha, own);
1110 sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
1114 sess->explicit_logout = 0;
1115 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1116 sess->free_pending = 0;
1118 qla2x00_dfs_remove_rport(vha, sess);
1120 ql_dbg(ql_dbg_disc, vha, 0xf001,
1121 "Unregistration of sess %p %8phC finished fcp_cnt %d\n",
1122 sess, sess->port_name, vha->fcport_count);
1124 if (tgt && (tgt->sess_count == 0))
1125 wake_up_all(&tgt->waitQ);
1127 if (!test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags) &&
1128 !(vha->vp_idx && test_bit(VPORT_DELETE, &vha->dpc_flags)) &&
1129 (!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) {
1130 switch (vha->host->active_mode) {
1131 case MODE_INITIATOR:
1133 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1134 qla2xxx_wake_dpc(vha);
1143 if (vha->fcport_count == 0)
1144 wake_up_all(&vha->fcport_waitQ);
1147 /* ha->tgt.sess_lock supposed to be held on entry */
1148 void qlt_unreg_sess(struct fc_port *sess)
1150 struct scsi_qla_host *vha = sess->vha;
1151 unsigned long flags;
1153 ql_dbg(ql_dbg_disc, sess->vha, 0x210a,
1154 "%s sess %p for deletion %8phC\n",
1155 __func__, sess, sess->port_name);
1157 spin_lock_irqsave(&sess->vha->work_lock, flags);
1158 if (sess->free_pending) {
1159 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1162 sess->free_pending = 1;
1164 * Use FCF_ASYNC_SENT flag to block other cmds used in sess
1165 * management from being sent.
1167 sess->flags |= FCF_ASYNC_SENT;
1168 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1171 vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
1173 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1174 qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
1175 sess->last_rscn_gen = sess->rscn_gen;
1176 sess->last_login_gen = sess->login_gen;
1178 queue_work(sess->vha->hw->wq, &sess->free_work);
1180 EXPORT_SYMBOL(qlt_unreg_sess);
1182 static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
1184 struct qla_hw_data *ha = vha->hw;
1185 struct fc_port *sess = NULL;
1188 struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
1189 unsigned long flags;
1191 loop_id = le16_to_cpu(n->u.isp24.nport_handle);
1192 if (loop_id == 0xFFFF) {
1194 atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
1195 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1196 qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
1197 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1199 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1200 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
1201 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1204 ql_dbg(ql_dbg_tgt, vha, 0xe000,
1205 "Using sess for qla_tgt_reset: %p\n", sess);
1211 ql_dbg(ql_dbg_tgt, vha, 0xe047,
1212 "scsi(%ld): resetting (session %p from port %8phC mcmd %x, "
1213 "loop_id %d)\n", vha->host_no, sess, sess->port_name,
1216 return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK);
1219 static void qla24xx_chk_fcp_state(struct fc_port *sess)
1221 if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) {
1222 sess->logout_on_delete = 0;
1223 sess->logo_ack_needed = 0;
1224 sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
1228 void qlt_schedule_sess_for_deletion(struct fc_port *sess)
1230 struct qla_tgt *tgt = sess->tgt;
1231 unsigned long flags;
1234 switch (sess->disc_state) {
1235 case DSC_DELETE_PEND:
1238 if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
1239 !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) {
1240 if (tgt && tgt->tgt_stop && tgt->sess_count == 0)
1241 wake_up_all(&tgt->waitQ);
1243 if (sess->vha->fcport_count == 0)
1244 wake_up_all(&sess->vha->fcport_waitQ);
1248 case DSC_UPD_FCPORT:
1250 * This port is not done reporting to upper layer.
1253 sess->next_disc_state = DSC_DELETE_PEND;
1254 sec = jiffies_to_msecs(jiffies -
1255 sess->jiffies_at_registration)/1000;
1256 if (sess->sec_since_registration < sec && sec && !(sec % 5)) {
1257 sess->sec_since_registration = sec;
1258 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
1259 "%s %8phC : Slow Rport registration(%d Sec)\n",
1260 __func__, sess->port_name, sec);
1267 spin_lock_irqsave(&sess->vha->work_lock, flags);
1268 if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
1269 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1272 sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
1273 spin_unlock_irqrestore(&sess->vha->work_lock, flags);
1275 sess->prli_pend_timer = 0;
1276 qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
1278 qla24xx_chk_fcp_state(sess);
1280 ql_dbg(ql_log_warn, sess->vha, 0xe001,
1281 "Scheduling sess %p for deletion %8phC\n",
1282 sess, sess->port_name);
1284 WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work));
1287 static void qlt_clear_tgt_db(struct qla_tgt *tgt)
1289 struct fc_port *sess;
1290 scsi_qla_host_t *vha = tgt->vha;
1292 list_for_each_entry(sess, &vha->vp_fcports, list) {
1294 qlt_schedule_sess_for_deletion(sess);
1297 /* At this point tgt could be already dead */
1300 static int qla24xx_get_loop_id(struct scsi_qla_host *vha, be_id_t s_id,
1303 struct qla_hw_data *ha = vha->hw;
1304 dma_addr_t gid_list_dma;
1305 struct gid_list_info *gid_list, *gid;
1309 gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1310 &gid_list_dma, GFP_KERNEL);
1312 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044,
1313 "qla_target(%d): DMA Alloc failed of %u\n",
1314 vha->vp_idx, qla2x00_gid_list_size(ha));
1318 /* Get list of logged in devices */
1319 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries);
1320 if (rc != QLA_SUCCESS) {
1321 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045,
1322 "qla_target(%d): get_id_list() failed: %x\n",
1325 goto out_free_id_list;
1330 for (i = 0; i < entries; i++) {
1331 if (gid->al_pa == s_id.al_pa &&
1332 gid->area == s_id.area &&
1333 gid->domain == s_id.domain) {
1334 *loop_id = le16_to_cpu(gid->loop_id);
1338 gid = (void *)gid + ha->gid_list_info_size;
1342 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
1343 gid_list, gid_list_dma);
1348 * Adds an extra ref to allow to drop hw lock after adding sess to the list.
1349 * Caller must put it.
1351 static struct fc_port *qlt_create_sess(
1352 struct scsi_qla_host *vha,
1356 struct qla_hw_data *ha = vha->hw;
1357 struct fc_port *sess = fcport;
1358 unsigned long flags;
1360 if (vha->vha_tgt.qla_tgt->tgt_stop)
1363 if (fcport->se_sess) {
1364 if (!kref_get_unless_zero(&sess->sess_kref)) {
1365 ql_dbg(ql_dbg_disc, vha, 0x20f6,
1366 "%s: kref_get_unless_zero failed for %8phC\n",
1367 __func__, sess->port_name);
1372 sess->tgt = vha->vha_tgt.qla_tgt;
1373 sess->local = local;
1376 * Under normal circumstances we want to logout from firmware when
1377 * session eventually ends and release corresponding nport handle.
1378 * In the exception cases (e.g. when new PLOGI is waiting) corresponding
1379 * code will adjust these flags as necessary.
1381 sess->logout_on_delete = 1;
1382 sess->keep_nport_handle = 0;
1383 sess->logout_completed = 0;
1385 if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
1386 &fcport->port_name[0], sess) < 0) {
1387 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015,
1388 "(%d) %8phC check_initiator_node_acl failed\n",
1389 vha->vp_idx, fcport->port_name);
1392 kref_init(&fcport->sess_kref);
1394 * Take an extra reference to ->sess_kref here to handle
1395 * fc_port access across ->tgt.sess_lock reaquire.
1397 if (!kref_get_unless_zero(&sess->sess_kref)) {
1398 ql_dbg(ql_dbg_disc, vha, 0x20f7,
1399 "%s: kref_get_unless_zero failed for %8phC\n",
1400 __func__, sess->port_name);
1404 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1405 if (!IS_SW_RESV_ADDR(sess->d_id))
1406 vha->vha_tgt.qla_tgt->sess_count++;
1408 qlt_do_generation_tick(vha, &sess->generation);
1409 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1412 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006,
1413 "Adding sess %p se_sess %p to tgt %p sess_count %d\n",
1414 sess, sess->se_sess, vha->vha_tgt.qla_tgt,
1415 vha->vha_tgt.qla_tgt->sess_count);
1417 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b,
1418 "qla_target(%d): %ssession for wwn %8phC (loop_id %d, "
1419 "s_id %x:%x:%x, confirmed completion %ssupported) added\n",
1420 vha->vp_idx, local ? "local " : "", fcport->port_name,
1421 fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area,
1422 sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not ");
1428 * max_gen - specifies maximum session generation
1429 * at which this deletion requestion is still valid
1432 qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
1434 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1435 struct fc_port *sess = fcport;
1436 unsigned long flags;
1438 if (!vha->hw->tgt.tgt_ops)
1444 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1445 if (tgt->tgt_stop) {
1446 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1449 if (!sess->se_sess) {
1450 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1454 if (max_gen - sess->generation < 0) {
1455 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1456 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092,
1457 "Ignoring stale deletion request for se_sess %p / sess %p"
1458 " for port %8phC, req_gen %d, sess_gen %d\n",
1459 sess->se_sess, sess, sess->port_name, max_gen,
1464 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
1467 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1468 qlt_schedule_sess_for_deletion(sess);
1471 static inline int test_tgt_sess_count(struct qla_tgt *tgt)
1473 struct qla_hw_data *ha = tgt->ha;
1474 unsigned long flags;
1477 * We need to protect against race, when tgt is freed before or
1480 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1481 ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
1482 "tgt %p, sess_count=%d\n",
1483 tgt, tgt->sess_count);
1484 res = (tgt->sess_count == 0);
1485 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1490 /* Called by tcm_qla2xxx configfs code */
1491 int qlt_stop_phase1(struct qla_tgt *tgt)
1493 struct scsi_qla_host *vha = tgt->vha;
1494 struct qla_hw_data *ha = tgt->ha;
1495 unsigned long flags;
1497 mutex_lock(&ha->optrom_mutex);
1498 mutex_lock(&qla_tgt_mutex);
1500 if (tgt->tgt_stop || tgt->tgt_stopped) {
1501 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e,
1502 "Already in tgt->tgt_stop or tgt_stopped state\n");
1503 mutex_unlock(&qla_tgt_mutex);
1504 mutex_unlock(&ha->optrom_mutex);
1508 ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n",
1511 * Mutex needed to sync with qla_tgt_fc_port_[added,deleted].
1512 * Lock is needed, because we still can get an incoming packet.
1514 mutex_lock(&vha->vha_tgt.tgt_mutex);
1516 qlt_clear_tgt_db(tgt);
1517 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1518 mutex_unlock(&qla_tgt_mutex);
1520 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
1521 "Waiting for sess works (tgt %p)", tgt);
1522 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1523 while (!list_empty(&tgt->sess_works_list)) {
1524 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1525 flush_scheduled_work();
1526 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1528 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1530 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
1531 "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count);
1533 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1536 if (!ha->flags.host_shutting_down &&
1537 (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)))
1538 qlt_disable_vha(vha);
1540 /* Wait for sessions to clear out (just in case) */
1541 wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
1542 mutex_unlock(&ha->optrom_mutex);
1546 EXPORT_SYMBOL(qlt_stop_phase1);
1548 /* Called by tcm_qla2xxx configfs code */
1549 void qlt_stop_phase2(struct qla_tgt *tgt)
1551 scsi_qla_host_t *vha = tgt->vha;
1553 if (tgt->tgt_stopped) {
1554 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f,
1555 "Already in tgt->tgt_stopped state\n");
1559 if (!tgt->tgt_stop) {
1560 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b,
1561 "%s: phase1 stop is not completed\n", __func__);
1566 mutex_lock(&vha->vha_tgt.tgt_mutex);
1568 tgt->tgt_stopped = 1;
1569 mutex_unlock(&vha->vha_tgt.tgt_mutex);
1571 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n",
1574 switch (vha->qlini_mode) {
1575 case QLA2XXX_INI_MODE_EXCLUSIVE:
1576 vha->flags.online = 1;
1577 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1583 EXPORT_SYMBOL(qlt_stop_phase2);
1585 /* Called from qlt_remove_target() -> qla2x00_remove_one() */
1586 static void qlt_release(struct qla_tgt *tgt)
1588 scsi_qla_host_t *vha = tgt->vha;
1592 struct qla_qpair_hint *h;
1593 struct qla_hw_data *ha = vha->hw;
1595 if (!tgt->tgt_stop && !tgt->tgt_stopped)
1596 qlt_stop_phase1(tgt);
1598 if (!tgt->tgt_stopped)
1599 qlt_stop_phase2(tgt);
1601 for (i = 0; i < vha->hw->max_qpairs + 1; i++) {
1602 unsigned long flags;
1604 h = &tgt->qphints[i];
1606 spin_lock_irqsave(h->qpair->qp_lock_ptr, flags);
1607 list_del(&h->hint_elem);
1608 spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags);
1612 kfree(tgt->qphints);
1613 mutex_lock(&qla_tgt_mutex);
1614 list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
1615 mutex_unlock(&qla_tgt_mutex);
1617 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
1618 btree_remove64(&tgt->lun_qpair_map, key);
1620 btree_destroy64(&tgt->lun_qpair_map);
1623 if (ha->tgt.tgt_ops &&
1624 ha->tgt.tgt_ops->remove_target &&
1625 vha->vha_tgt.target_lport_ptr)
1626 ha->tgt.tgt_ops->remove_target(vha);
1628 vha->vha_tgt.qla_tgt = NULL;
1630 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
1631 "Release of tgt %p finished\n", tgt);
1636 /* ha->hardware_lock supposed to be held on entry */
1637 static int qlt_sched_sess_work(struct qla_tgt *tgt, int type,
1638 const void *param, unsigned int param_size)
1640 struct qla_tgt_sess_work_param *prm;
1641 unsigned long flags;
1643 prm = kzalloc(sizeof(*prm), GFP_ATOMIC);
1645 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050,
1646 "qla_target(%d): Unable to create session "
1647 "work, command will be refused", 0);
1651 ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e,
1652 "Scheduling work (type %d, prm %p)"
1653 " to find session for param %p (size %d, tgt %p)\n",
1654 type, prm, param, param_size, tgt);
1657 memcpy(&prm->tm_iocb, param, param_size);
1659 spin_lock_irqsave(&tgt->sess_work_lock, flags);
1660 list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list);
1661 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
1663 schedule_work(&tgt->sess_work);
1669 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1671 static void qlt_send_notify_ack(struct qla_qpair *qpair,
1672 struct imm_ntfy_from_isp *ntfy,
1673 uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
1674 uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan)
1676 struct scsi_qla_host *vha = qpair->vha;
1677 struct qla_hw_data *ha = vha->hw;
1679 struct nack_to_isp *nack;
1681 if (!ha->flags.fw_started)
1684 ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha);
1686 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
1688 ql_dbg(ql_dbg_tgt, vha, 0xe049,
1689 "qla_target(%d): %s failed: unable to allocate "
1690 "request packet\n", vha->vp_idx, __func__);
1694 if (vha->vha_tgt.qla_tgt != NULL)
1695 vha->vha_tgt.qla_tgt->notify_ack_expected++;
1697 pkt->entry_type = NOTIFY_ACK_TYPE;
1698 pkt->entry_count = 1;
1700 nack = (struct nack_to_isp *)pkt;
1701 nack->ox_id = ntfy->ox_id;
1703 nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE;
1704 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
1705 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
1706 nack->u.isp24.flags = ntfy->u.isp24.flags &
1707 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
1709 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
1710 nack->u.isp24.status = ntfy->u.isp24.status;
1711 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
1712 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
1713 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
1714 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
1715 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
1716 nack->u.isp24.srr_flags = cpu_to_le16(srr_flags);
1717 nack->u.isp24.srr_reject_code = srr_reject_code;
1718 nack->u.isp24.srr_reject_code_expl = srr_explan;
1719 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
1721 ql_dbg(ql_dbg_tgt, vha, 0xe005,
1722 "qla_target(%d): Sending 24xx Notify Ack %d\n",
1723 vha->vp_idx, nack->u.isp24.status);
1725 /* Memory Barrier */
1727 qla2x00_start_iocbs(vha, qpair->req);
1730 static int qlt_build_abts_resp_iocb(struct qla_tgt_mgmt_cmd *mcmd)
1732 struct scsi_qla_host *vha = mcmd->vha;
1733 struct qla_hw_data *ha = vha->hw;
1734 struct abts_resp_to_24xx *resp;
1739 struct abts_recv_from_24xx *abts = &mcmd->orig_iocb.abts;
1740 struct qla_qpair *qpair = mcmd->qpair;
1742 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1743 "Sending task mgmt ABTS response (ha=%p, status=%x)\n",
1744 ha, mcmd->fc_tm_rsp);
1746 rc = qlt_check_reserve_free_req(qpair, 1);
1748 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1749 "qla_target(%d): %s failed: unable to allocate request packet\n",
1750 vha->vp_idx, __func__);
1754 resp = (struct abts_resp_to_24xx *)qpair->req->ring_ptr;
1755 memset(resp, 0, sizeof(*resp));
1757 h = qlt_make_handle(qpair);
1758 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
1760 * CTIO type 7 from the firmware doesn't provide a way to
1761 * know the initiator's LOOP ID, hence we can't find
1762 * the session and, so, the command.
1766 qpair->req->outstanding_cmds[h] = (srb_t *)mcmd;
1769 resp->handle = make_handle(qpair->req->id, h);
1770 resp->entry_type = ABTS_RESP_24XX;
1771 resp->entry_count = 1;
1772 resp->nport_handle = abts->nport_handle;
1773 resp->vp_index = vha->vp_idx;
1774 resp->sof_type = abts->sof_type;
1775 resp->exchange_address = abts->exchange_address;
1776 resp->fcp_hdr_le = abts->fcp_hdr_le;
1777 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1778 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1779 F_CTL_SEQ_INITIATIVE);
1780 p = (uint8_t *)&f_ctl;
1781 resp->fcp_hdr_le.f_ctl[0] = *p++;
1782 resp->fcp_hdr_le.f_ctl[1] = *p++;
1783 resp->fcp_hdr_le.f_ctl[2] = *p;
1785 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
1786 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
1788 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1789 if (mcmd->fc_tm_rsp == FCP_TMF_CMPL) {
1790 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1791 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1792 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1793 resp->payload.ba_acct.high_seq_cnt = cpu_to_le16(0xFFFF);
1794 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1795 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1797 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1798 resp->payload.ba_rjt.reason_code =
1799 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1800 /* Other bytes are zero */
1803 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1805 /* Memory Barrier */
1807 if (qpair->reqq_start_iocbs)
1808 qpair->reqq_start_iocbs(qpair);
1810 qla2x00_start_iocbs(vha, qpair->req);
1816 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1818 static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair,
1819 struct abts_recv_from_24xx *abts, uint32_t status,
1822 struct scsi_qla_host *vha = qpair->vha;
1823 struct qla_hw_data *ha = vha->hw;
1824 struct abts_resp_to_24xx *resp;
1828 ql_dbg(ql_dbg_tgt, vha, 0xe006,
1829 "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
1832 resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair,
1835 ql_dbg(ql_dbg_tgt, vha, 0xe04a,
1836 "qla_target(%d): %s failed: unable to allocate "
1837 "request packet", vha->vp_idx, __func__);
1841 resp->entry_type = ABTS_RESP_24XX;
1842 resp->handle = QLA_TGT_SKIP_HANDLE;
1843 resp->entry_count = 1;
1844 resp->nport_handle = abts->nport_handle;
1845 resp->vp_index = vha->vp_idx;
1846 resp->sof_type = abts->sof_type;
1847 resp->exchange_address = abts->exchange_address;
1848 resp->fcp_hdr_le = abts->fcp_hdr_le;
1849 f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
1850 F_CTL_LAST_SEQ | F_CTL_END_SEQ |
1851 F_CTL_SEQ_INITIATIVE);
1852 p = (uint8_t *)&f_ctl;
1853 resp->fcp_hdr_le.f_ctl[0] = *p++;
1854 resp->fcp_hdr_le.f_ctl[1] = *p++;
1855 resp->fcp_hdr_le.f_ctl[2] = *p;
1857 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.d_id;
1858 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.s_id;
1860 resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
1861 resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
1863 resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
1864 if (status == FCP_TMF_CMPL) {
1865 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
1866 resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
1867 resp->payload.ba_acct.low_seq_cnt = 0x0000;
1868 resp->payload.ba_acct.high_seq_cnt = cpu_to_le16(0xFFFF);
1869 resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
1870 resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
1872 resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
1873 resp->payload.ba_rjt.reason_code =
1874 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
1875 /* Other bytes are zero */
1878 vha->vha_tgt.qla_tgt->abts_resp_expected++;
1880 /* Memory Barrier */
1882 if (qpair->reqq_start_iocbs)
1883 qpair->reqq_start_iocbs(qpair);
1885 qla2x00_start_iocbs(vha, qpair->req);
1889 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1891 static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha,
1892 struct qla_qpair *qpair, response_t *pkt, struct qla_tgt_mgmt_cmd *mcmd)
1894 struct ctio7_to_24xx *ctio;
1896 struct abts_recv_from_24xx *entry;
1898 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, NULL);
1900 ql_dbg(ql_dbg_tgt, vha, 0xe04b,
1901 "qla_target(%d): %s failed: unable to allocate "
1902 "request packet\n", vha->vp_idx, __func__);
1907 /* abts from remote port */
1908 entry = &mcmd->orig_iocb.abts;
1910 /* abts from this driver. */
1911 entry = (struct abts_recv_from_24xx *)pkt;
1914 * We've got on entrance firmware's response on by us generated
1915 * ABTS response. So, in it ID fields are reversed.
1918 ctio->entry_type = CTIO_TYPE7;
1919 ctio->entry_count = 1;
1920 ctio->nport_handle = entry->nport_handle;
1921 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
1922 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
1923 ctio->vp_index = vha->vp_idx;
1924 ctio->exchange_addr = entry->exchange_addr_to_abort;
1925 tmp = (CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE);
1928 ctio->initiator_id = entry->fcp_hdr_le.s_id;
1930 if (mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID)
1931 tmp |= (mcmd->abort_io_attr << 9);
1932 else if (qpair->retry_term_cnt & 1)
1935 ctio->initiator_id = entry->fcp_hdr_le.d_id;
1937 if (qpair->retry_term_cnt & 1)
1940 ctio->u.status1.flags = cpu_to_le16(tmp);
1941 ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id;
1943 ql_dbg(ql_dbg_tgt, vha, 0xe007,
1944 "Sending retry TERM EXCH CTIO7 flags %04xh oxid %04xh attr valid %x\n",
1945 le16_to_cpu(ctio->u.status1.flags),
1946 le16_to_cpu(ctio->u.status1.ox_id),
1947 (mcmd && mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID) ? 1 : 0);
1949 /* Memory Barrier */
1951 if (qpair->reqq_start_iocbs)
1952 qpair->reqq_start_iocbs(qpair);
1954 qla2x00_start_iocbs(vha, qpair->req);
1957 qlt_build_abts_resp_iocb(mcmd);
1959 qlt_24xx_send_abts_resp(qpair,
1960 (struct abts_recv_from_24xx *)entry, FCP_TMF_CMPL, true);
1964 /* drop cmds for the given lun
1965 * XXX only looks for cmds on the port through which lun reset was recieved
1966 * XXX does not go through the list of other port (which may have cmds
1969 static void abort_cmds_for_lun(struct scsi_qla_host *vha, u64 lun, be_id_t s_id)
1971 struct qla_tgt_sess_op *op;
1972 struct qla_tgt_cmd *cmd;
1974 unsigned long flags;
1976 key = sid_to_key(s_id);
1977 spin_lock_irqsave(&vha->cmd_list_lock, flags);
1978 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
1982 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
1983 op_lun = scsilun_to_int(
1984 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
1985 if (op_key == key && op_lun == lun)
1989 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
1993 op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
1994 op_lun = scsilun_to_int(
1995 (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
1996 if (op_key == key && op_lun == lun)
2000 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
2004 cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
2005 cmd_lun = scsilun_to_int(
2006 (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun);
2007 if (cmd_key == key && cmd_lun == lun)
2010 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
2013 static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha,
2014 uint64_t unpacked_lun)
2016 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
2017 struct qla_qpair_hint *h = NULL;
2019 if (vha->flags.qpairs_available) {
2020 h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun);
2022 h = &tgt->qphints[0];
2024 h = &tgt->qphints[0];
2030 static void qlt_do_tmr_work(struct work_struct *work)
2032 struct qla_tgt_mgmt_cmd *mcmd =
2033 container_of(work, struct qla_tgt_mgmt_cmd, work);
2034 struct qla_hw_data *ha = mcmd->vha->hw;
2037 unsigned long flags;
2039 switch (mcmd->tmr_func) {
2041 tag = le32_to_cpu(mcmd->orig_iocb.abts.exchange_addr_to_abort);
2048 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun,
2049 mcmd->tmr_func, tag);
2052 spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags);
2053 switch (mcmd->tmr_func) {
2055 mcmd->fc_tm_rsp = FCP_TMF_REJECTED;
2056 qlt_build_abts_resp_iocb(mcmd);
2058 case QLA_TGT_LUN_RESET:
2059 case QLA_TGT_CLEAR_TS:
2060 case QLA_TGT_ABORT_TS:
2061 case QLA_TGT_CLEAR_ACA:
2062 case QLA_TGT_TARGET_RESET:
2063 qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio,
2067 case QLA_TGT_ABORT_ALL:
2068 case QLA_TGT_NEXUS_LOSS_SESS:
2069 case QLA_TGT_NEXUS_LOSS:
2070 qlt_send_notify_ack(mcmd->qpair,
2071 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2074 spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags);
2076 ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052,
2077 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
2078 mcmd->vha->vp_idx, rc);
2079 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2083 /* ha->hardware_lock supposed to be held on entry */
2084 static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2085 struct abts_recv_from_24xx *abts, struct fc_port *sess)
2087 struct qla_hw_data *ha = vha->hw;
2088 struct qla_tgt_mgmt_cmd *mcmd;
2089 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
2090 struct qla_tgt_cmd *abort_cmd;
2092 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
2093 "qla_target(%d): task abort (tag=%d)\n",
2094 vha->vp_idx, abts->exchange_addr_to_abort);
2096 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
2098 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051,
2099 "qla_target(%d): %s: Allocation of ABORT cmd failed",
2100 vha->vp_idx, __func__);
2103 memset(mcmd, 0, sizeof(*mcmd));
2104 mcmd->cmd_type = TYPE_TGT_TMCMD;
2106 memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
2107 mcmd->reset_count = ha->base_qpair->chip_reset;
2108 mcmd->tmr_func = QLA_TGT_ABTS;
2109 mcmd->qpair = h->qpair;
2113 * LUN is looked up by target-core internally based on the passed
2114 * abts->exchange_addr_to_abort tag.
2116 mcmd->se_cmd.cpuid = h->cpuid;
2118 abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
2119 le32_to_cpu(abts->exchange_addr_to_abort));
2122 mcmd->unpacked_lun = abort_cmd->se_cmd.orig_fe_lun;
2124 if (abort_cmd->qpair) {
2125 mcmd->qpair = abort_cmd->qpair;
2126 mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid;
2127 mcmd->abort_io_attr = abort_cmd->atio.u.isp24.attr;
2128 mcmd->flags = QLA24XX_MGMT_ABORT_IO_ATTR_VALID;
2131 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
2132 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work);
2138 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2140 static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
2141 struct abts_recv_from_24xx *abts)
2143 struct qla_hw_data *ha = vha->hw;
2144 struct fc_port *sess;
2145 uint32_t tag = le32_to_cpu(abts->exchange_addr_to_abort);
2148 unsigned long flags;
2150 if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) {
2151 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053,
2152 "qla_target(%d): ABTS: Abort Sequence not "
2153 "supported\n", vha->vp_idx);
2154 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2159 if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
2160 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010,
2161 "qla_target(%d): ABTS: Unknown Exchange "
2162 "Address received\n", vha->vp_idx);
2163 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2168 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011,
2169 "qla_target(%d): task abort (s_id=%x:%x:%x, "
2170 "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id.domain,
2171 abts->fcp_hdr_le.s_id.area, abts->fcp_hdr_le.s_id.al_pa, tag,
2172 le32_to_cpu(abts->fcp_hdr_le.parameter));
2174 s_id = le_id_to_be(abts->fcp_hdr_le.s_id);
2176 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
2177 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
2179 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
2180 "qla_target(%d): task abort for non-existent session\n",
2182 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2184 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2188 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
2191 if (sess->deleted) {
2192 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2197 rc = __qlt_24xx_handle_abts(vha, abts, sess);
2199 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054,
2200 "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
2202 qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
2209 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2211 static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair,
2212 struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code)
2214 struct scsi_qla_host *ha = mcmd->vha;
2215 struct atio_from_isp *atio = &mcmd->orig_iocb.atio;
2216 struct ctio7_to_24xx *ctio;
2219 ql_dbg(ql_dbg_tgt, ha, 0xe008,
2220 "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n",
2221 ha, atio, resp_code);
2224 ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL);
2226 ql_dbg(ql_dbg_tgt, ha, 0xe04c,
2227 "qla_target(%d): %s failed: unable to allocate "
2228 "request packet\n", ha->vp_idx, __func__);
2232 ctio->entry_type = CTIO_TYPE7;
2233 ctio->entry_count = 1;
2234 ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
2235 ctio->nport_handle = cpu_to_le16(mcmd->sess->loop_id);
2236 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2237 ctio->vp_index = ha->vp_idx;
2238 ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2239 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2240 temp = (atio->u.isp24.attr << 9)|
2241 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2242 ctio->u.status1.flags = cpu_to_le16(temp);
2243 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2244 ctio->u.status1.ox_id = cpu_to_le16(temp);
2245 ctio->u.status1.scsi_status =
2246 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
2247 ctio->u.status1.response_len = cpu_to_le16(8);
2248 ctio->u.status1.sense_data[0] = resp_code;
2250 /* Memory Barrier */
2252 if (qpair->reqq_start_iocbs)
2253 qpair->reqq_start_iocbs(qpair);
2255 qla2x00_start_iocbs(ha, qpair->req);
2258 void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
2260 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
2262 EXPORT_SYMBOL(qlt_free_mcmd);
2265 * ha->hardware_lock supposed to be held on entry. Might drop it, then
2268 void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
2269 uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq)
2271 struct atio_from_isp *atio = &cmd->atio;
2272 struct ctio7_to_24xx *ctio;
2274 struct scsi_qla_host *vha = cmd->vha;
2276 ql_dbg(ql_dbg_tgt_dif, vha, 0x3066,
2277 "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, "
2278 "sense_key=%02x, asc=%02x, ascq=%02x",
2279 vha, atio, scsi_status, sense_key, asc, ascq);
2281 ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
2283 ql_dbg(ql_dbg_async, vha, 0x3067,
2284 "qla2x00t(%ld): %s failed: unable to allocate request packet",
2285 vha->host_no, __func__);
2289 ctio->entry_type = CTIO_TYPE7;
2290 ctio->entry_count = 1;
2291 ctio->handle = QLA_TGT_SKIP_HANDLE;
2292 ctio->nport_handle = cpu_to_le16(cmd->sess->loop_id);
2293 ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2294 ctio->vp_index = vha->vp_idx;
2295 ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2296 ctio->exchange_addr = atio->u.isp24.exchange_addr;
2297 temp = (atio->u.isp24.attr << 9) |
2298 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
2299 ctio->u.status1.flags = cpu_to_le16(temp);
2300 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2301 ctio->u.status1.ox_id = cpu_to_le16(temp);
2302 ctio->u.status1.scsi_status =
2303 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status);
2304 ctio->u.status1.response_len = cpu_to_le16(18);
2305 ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
2307 if (ctio->u.status1.residual != 0)
2308 ctio->u.status1.scsi_status |=
2309 cpu_to_le16(SS_RESIDUAL_UNDER);
2311 /* Fixed format sense data. */
2312 ctio->u.status1.sense_data[0] = 0x70;
2313 ctio->u.status1.sense_data[2] = sense_key;
2314 /* Additional sense length */
2315 ctio->u.status1.sense_data[7] = 0xa;
2317 ctio->u.status1.sense_data[12] = asc;
2318 ctio->u.status1.sense_data[13] = ascq;
2320 /* Memory Barrier */
2323 if (qpair->reqq_start_iocbs)
2324 qpair->reqq_start_iocbs(qpair);
2326 qla2x00_start_iocbs(vha, qpair->req);
2332 /* callback from target fabric module code */
2333 void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
2335 struct scsi_qla_host *vha = mcmd->sess->vha;
2336 struct qla_hw_data *ha = vha->hw;
2337 unsigned long flags;
2338 struct qla_qpair *qpair = mcmd->qpair;
2339 bool free_mcmd = true;
2341 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013,
2342 "TM response mcmd (%p) status %#x state %#x",
2343 mcmd, mcmd->fc_tm_rsp, mcmd->flags);
2345 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
2347 if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) {
2349 * Either the port is not online or this request was from
2350 * previous life, just abort the processing.
2352 ql_dbg(ql_dbg_async, vha, 0xe100,
2353 "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n",
2354 vha->flags.online, qla2x00_reset_active(vha),
2355 mcmd->reset_count, qpair->chip_reset);
2356 ha->tgt.tgt_ops->free_mcmd(mcmd);
2357 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2361 if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) {
2362 switch (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode) {
2366 ql_dbg(ql_dbg_disc, vha, 0x2106,
2367 "TM response logo %8phC status %#x state %#x",
2368 mcmd->sess->port_name, mcmd->fc_tm_rsp,
2370 qlt_schedule_sess_for_deletion(mcmd->sess);
2373 qlt_send_notify_ack(vha->hw->base_qpair,
2374 &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
2378 if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) {
2379 qlt_build_abts_resp_iocb(mcmd);
2382 qlt_24xx_send_task_mgmt_ctio(qpair, mcmd,
2386 * Make the callback for ->free_mcmd() to queue_work() and invoke
2387 * target_put_sess_cmd() to drop cmd_kref to 1. The final
2388 * target_put_sess_cmd() call will be made from TFO->check_stop_free()
2389 * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd
2390 * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() ->
2391 * qlt_xmit_tm_rsp() returns here..
2394 ha->tgt.tgt_ops->free_mcmd(mcmd);
2396 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2398 EXPORT_SYMBOL(qlt_xmit_tm_rsp);
2401 static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm)
2403 struct qla_tgt_cmd *cmd = prm->cmd;
2405 BUG_ON(cmd->sg_cnt == 0);
2407 prm->sg = (struct scatterlist *)cmd->sg;
2408 prm->seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev, cmd->sg,
2409 cmd->sg_cnt, cmd->dma_data_direction);
2410 if (unlikely(prm->seg_cnt == 0))
2413 prm->cmd->sg_mapped = 1;
2415 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) {
2417 * If greater than four sg entries then we need to allocate
2418 * the continuation entries
2420 if (prm->seg_cnt > QLA_TGT_DATASEGS_PER_CMD_24XX)
2421 prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt -
2422 QLA_TGT_DATASEGS_PER_CMD_24XX,
2423 QLA_TGT_DATASEGS_PER_CONT_24XX);
2426 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2427 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2428 prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz);
2429 prm->tot_dsds = prm->seg_cnt;
2431 prm->tot_dsds = prm->seg_cnt;
2433 if (cmd->prot_sg_cnt) {
2434 prm->prot_sg = cmd->prot_sg;
2435 prm->prot_seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev,
2436 cmd->prot_sg, cmd->prot_sg_cnt,
2437 cmd->dma_data_direction);
2438 if (unlikely(prm->prot_seg_cnt == 0))
2441 if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
2442 (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
2443 /* Dif Bundling not support here */
2444 prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen,
2446 prm->tot_dsds += prm->prot_seg_cnt;
2448 prm->tot_dsds += prm->prot_seg_cnt;
2455 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d,
2456 "qla_target(%d): PCI mapping failed: sg_cnt=%d",
2457 0, prm->cmd->sg_cnt);
2461 static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd)
2463 struct qla_hw_data *ha;
2464 struct qla_qpair *qpair;
2466 if (!cmd->sg_mapped)
2471 dma_unmap_sg(&qpair->pdev->dev, cmd->sg, cmd->sg_cnt,
2472 cmd->dma_data_direction);
2475 if (cmd->prot_sg_cnt)
2476 dma_unmap_sg(&qpair->pdev->dev, cmd->prot_sg, cmd->prot_sg_cnt,
2477 cmd->dma_data_direction);
2482 if (cmd->ctx_dsd_alloced)
2483 qla2x00_clean_dsd_pool(ha, cmd->ctx);
2485 dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma);
2488 static int qlt_check_reserve_free_req(struct qla_qpair *qpair,
2492 struct req_que *req = qpair->req;
2494 if (req->cnt < (req_cnt + 2)) {
2495 cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr :
2496 rd_reg_dword_relaxed(req->req_q_out));
2498 if (req->ring_index < cnt)
2499 req->cnt = cnt - req->ring_index;
2501 req->cnt = req->length - (req->ring_index - cnt);
2503 if (unlikely(req->cnt < (req_cnt + 2)))
2507 req->cnt -= req_cnt;
2513 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2515 static inline void *qlt_get_req_pkt(struct req_que *req)
2517 /* Adjust ring index. */
2519 if (req->ring_index == req->length) {
2520 req->ring_index = 0;
2521 req->ring_ptr = req->ring;
2525 return (cont_entry_t *)req->ring_ptr;
2528 /* ha->hardware_lock supposed to be held on entry */
2529 static inline uint32_t qlt_make_handle(struct qla_qpair *qpair)
2534 struct req_que *req = qpair->req;
2536 h = req->current_outstanding_cmd;
2538 for (index = 1; index < req->num_outstanding_cmds; index++) {
2540 if (h == req->num_outstanding_cmds)
2543 if (h == QLA_TGT_SKIP_HANDLE)
2546 if (!req->outstanding_cmds[h]) {
2553 req->current_outstanding_cmd = h;
2555 ql_dbg(ql_dbg_io, qpair->vha, 0x305b,
2556 "qla_target(%d): Ran out of empty cmd slots\n",
2557 qpair->vha->vp_idx);
2558 h = QLA_TGT_NULL_HANDLE;
2564 /* ha->hardware_lock supposed to be held on entry */
2565 static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair,
2566 struct qla_tgt_prm *prm)
2569 struct ctio7_to_24xx *pkt;
2570 struct atio_from_isp *atio = &prm->cmd->atio;
2573 pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr;
2575 memset(pkt, 0, sizeof(*pkt));
2577 pkt->entry_type = CTIO_TYPE7;
2578 pkt->entry_count = (uint8_t)prm->req_cnt;
2579 pkt->vp_index = prm->cmd->vp_idx;
2581 h = qlt_make_handle(qpair);
2582 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
2584 * CTIO type 7 from the firmware doesn't provide a way to
2585 * know the initiator's LOOP ID, hence we can't find
2586 * the session and, so, the command.
2590 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
2592 pkt->handle = make_handle(qpair->req->id, h);
2593 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
2594 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
2595 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
2596 pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
2597 pkt->exchange_addr = atio->u.isp24.exchange_addr;
2598 temp = atio->u.isp24.attr << 9;
2599 pkt->u.status0.flags |= cpu_to_le16(temp);
2600 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
2601 pkt->u.status0.ox_id = cpu_to_le16(temp);
2602 pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset);
2608 * ha->hardware_lock supposed to be held on entry. We have already made sure
2609 * that there is sufficient amount of request entries to not drop it.
2611 static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm)
2614 struct dsd64 *cur_dsd;
2616 /* Build continuation packets */
2617 while (prm->seg_cnt > 0) {
2618 cont_a64_entry_t *cont_pkt64 =
2619 (cont_a64_entry_t *)qlt_get_req_pkt(
2620 prm->cmd->qpair->req);
2623 * Make sure that from cont_pkt64 none of
2624 * 64-bit specific fields used for 32-bit
2625 * addressing. Cast to (cont_entry_t *) for
2629 memset(cont_pkt64, 0, sizeof(*cont_pkt64));
2631 cont_pkt64->entry_count = 1;
2632 cont_pkt64->sys_define = 0;
2634 cont_pkt64->entry_type = CONTINUE_A64_TYPE;
2635 cur_dsd = cont_pkt64->dsd;
2637 /* Load continuation entry data segments */
2639 cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt;
2640 cnt++, prm->seg_cnt--) {
2641 append_dsd64(&cur_dsd, prm->sg);
2642 prm->sg = sg_next(prm->sg);
2648 * ha->hardware_lock supposed to be held on entry. We have already made sure
2649 * that there is sufficient amount of request entries to not drop it.
2651 static void qlt_load_data_segments(struct qla_tgt_prm *prm)
2654 struct dsd64 *cur_dsd;
2655 struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt;
2657 pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen);
2659 /* Setup packet address segment pointer */
2660 cur_dsd = &pkt24->u.status0.dsd;
2662 /* Set total data segment count */
2664 pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
2666 if (prm->seg_cnt == 0) {
2667 /* No data transfer */
2668 cur_dsd->address = 0;
2669 cur_dsd->length = 0;
2673 /* If scatter gather */
2675 /* Load command entry data segments */
2677 (cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt;
2678 cnt++, prm->seg_cnt--) {
2679 append_dsd64(&cur_dsd, prm->sg);
2680 prm->sg = sg_next(prm->sg);
2683 qlt_load_cont_data_segments(prm);
2686 static inline int qlt_has_data(struct qla_tgt_cmd *cmd)
2688 return cmd->bufflen > 0;
2691 static void qlt_print_dif_err(struct qla_tgt_prm *prm)
2693 struct qla_tgt_cmd *cmd;
2694 struct scsi_qla_host *vha;
2696 /* asc 0x10=dif error */
2697 if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) {
2701 switch (prm->sense_buffer[13]) {
2703 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b,
2704 "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2705 "se_cmd=%p tag[%x]",
2706 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2707 cmd->atio.u.isp24.exchange_addr);
2710 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c,
2711 "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2712 "se_cmd=%p tag[%x]",
2713 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2714 cmd->atio.u.isp24.exchange_addr);
2717 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f,
2718 "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2719 "se_cmd=%p tag[%x]",
2720 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2721 cmd->atio.u.isp24.exchange_addr);
2724 ql_dbg(ql_dbg_tgt_dif, vha, 0xe010,
2725 "BE detected Dif ERR: lba[%llx|%lld] len[%x] "
2726 "se_cmd=%p tag[%x]",
2727 cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
2728 cmd->atio.u.isp24.exchange_addr);
2731 ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16);
2736 * Called without ha->hardware_lock held
2738 static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
2739 struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status,
2740 uint32_t *full_req_cnt)
2742 struct se_cmd *se_cmd = &cmd->se_cmd;
2743 struct qla_qpair *qpair = cmd->qpair;
2746 prm->tgt = cmd->tgt;
2748 prm->rq_result = scsi_status;
2749 prm->sense_buffer = &cmd->sense_buffer[0];
2750 prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER;
2755 prm->add_status_pkt = 0;
2756 prm->prot_sg = NULL;
2757 prm->prot_seg_cnt = 0;
2760 if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) {
2761 if (qlt_pci_map_calc_cnt(prm) != 0)
2765 *full_req_cnt = prm->req_cnt;
2767 if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
2768 prm->residual = se_cmd->residual_count;
2769 ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c,
2770 "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2771 prm->residual, se_cmd->tag,
2772 se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
2773 cmd->bufflen, prm->rq_result);
2774 prm->rq_result |= SS_RESIDUAL_UNDER;
2775 } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
2776 prm->residual = se_cmd->residual_count;
2777 ql_dbg_qp(ql_dbg_io, qpair, 0x305d,
2778 "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2779 prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
2780 se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
2781 prm->rq_result |= SS_RESIDUAL_OVER;
2784 if (xmit_type & QLA_TGT_XMIT_STATUS) {
2786 * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be
2787 * ignored in *xmit_response() below
2789 if (qlt_has_data(cmd)) {
2790 if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
2791 (IS_FWI2_CAPABLE(cmd->vha->hw) &&
2792 (prm->rq_result != 0))) {
2793 prm->add_status_pkt = 1;
2802 static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd,
2805 if (cmd->qpair->enable_class_2)
2809 return cmd->conf_compl_supported;
2811 return cmd->qpair->enable_explicit_conf &&
2812 cmd->conf_compl_supported;
2815 static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
2816 struct qla_tgt_prm *prm)
2818 prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
2819 (uint32_t)sizeof(ctio->u.status1.sense_data));
2820 ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
2821 if (qlt_need_explicit_conf(prm->cmd, 0)) {
2822 ctio->u.status0.flags |= cpu_to_le16(
2823 CTIO7_FLAGS_EXPLICIT_CONFORM |
2824 CTIO7_FLAGS_CONFORM_REQ);
2826 ctio->u.status0.residual = cpu_to_le32(prm->residual);
2827 ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result);
2828 if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
2831 if (qlt_need_explicit_conf(prm->cmd, 1)) {
2832 if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) {
2833 ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017,
2834 "Skipping EXPLICIT_CONFORM and "
2835 "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
2836 "non GOOD status\n");
2837 goto skip_explict_conf;
2839 ctio->u.status1.flags |= cpu_to_le16(
2840 CTIO7_FLAGS_EXPLICIT_CONFORM |
2841 CTIO7_FLAGS_CONFORM_REQ);
2844 ctio->u.status1.flags &=
2845 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2846 ctio->u.status1.flags |=
2847 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2848 ctio->u.status1.scsi_status |=
2849 cpu_to_le16(SS_SENSE_LEN_VALID);
2850 ctio->u.status1.sense_length =
2851 cpu_to_le16(prm->sense_buffer_len);
2852 for (i = 0; i < prm->sense_buffer_len/4; i++) {
2855 v = get_unaligned_be32(
2856 &((uint32_t *)prm->sense_buffer)[i]);
2857 put_unaligned_le32(v,
2858 &((uint32_t *)ctio->u.status1.sense_data)[i]);
2860 qlt_print_dif_err(prm);
2863 ctio->u.status1.flags &=
2864 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
2865 ctio->u.status1.flags |=
2866 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
2867 ctio->u.status1.sense_length = 0;
2868 memset(ctio->u.status1.sense_data, 0,
2869 sizeof(ctio->u.status1.sense_data));
2872 /* Sense with len > 24, is it possible ??? */
2876 qlt_hba_err_chk_enabled(struct se_cmd *se_cmd)
2878 switch (se_cmd->prot_op) {
2879 case TARGET_PROT_DOUT_INSERT:
2880 case TARGET_PROT_DIN_STRIP:
2881 if (ql2xenablehba_err_chk >= 1)
2884 case TARGET_PROT_DOUT_PASS:
2885 case TARGET_PROT_DIN_PASS:
2886 if (ql2xenablehba_err_chk >= 2)
2889 case TARGET_PROT_DIN_INSERT:
2890 case TARGET_PROT_DOUT_STRIP:
2899 qla_tgt_ref_mask_check(struct se_cmd *se_cmd)
2901 switch (se_cmd->prot_op) {
2902 case TARGET_PROT_DIN_INSERT:
2903 case TARGET_PROT_DOUT_INSERT:
2904 case TARGET_PROT_DIN_STRIP:
2905 case TARGET_PROT_DOUT_STRIP:
2906 case TARGET_PROT_DIN_PASS:
2907 case TARGET_PROT_DOUT_PASS:
2916 * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command
2919 qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx,
2920 uint16_t *pfw_prot_opts)
2922 struct se_cmd *se_cmd = &cmd->se_cmd;
2923 uint32_t lba = 0xffffffff & se_cmd->t_task_lba;
2924 scsi_qla_host_t *vha = cmd->tgt->vha;
2925 struct qla_hw_data *ha = vha->hw;
2929 * wait till Mode Sense/Select cmd, modepage Ah, subpage 2
2930 * have been immplemented by TCM, before AppTag is avail.
2931 * Look for modesense_handlers[]
2934 ctx->app_tag_mask[0] = 0x0;
2935 ctx->app_tag_mask[1] = 0x0;
2937 if (IS_PI_UNINIT_CAPABLE(ha)) {
2938 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
2939 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
2940 *pfw_prot_opts |= PO_DIS_VALD_APP_ESC;
2941 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
2942 *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
2945 t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts);
2947 switch (se_cmd->prot_type) {
2948 case TARGET_DIF_TYPE0_PROT:
2950 * No check for ql2xenablehba_err_chk, as it
2951 * would be an I/O error if hba tag generation
2954 ctx->ref_tag = cpu_to_le32(lba);
2955 /* enable ALL bytes of the ref tag */
2956 ctx->ref_tag_mask[0] = 0xff;
2957 ctx->ref_tag_mask[1] = 0xff;
2958 ctx->ref_tag_mask[2] = 0xff;
2959 ctx->ref_tag_mask[3] = 0xff;
2961 case TARGET_DIF_TYPE1_PROT:
2963 * For TYPE 1 protection: 16 bit GUARD tag, 32 bit
2964 * REF tag, and 16 bit app tag.
2966 ctx->ref_tag = cpu_to_le32(lba);
2967 if (!qla_tgt_ref_mask_check(se_cmd) ||
2968 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
2969 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2972 /* enable ALL bytes of the ref tag */
2973 ctx->ref_tag_mask[0] = 0xff;
2974 ctx->ref_tag_mask[1] = 0xff;
2975 ctx->ref_tag_mask[2] = 0xff;
2976 ctx->ref_tag_mask[3] = 0xff;
2978 case TARGET_DIF_TYPE2_PROT:
2980 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF
2981 * tag has to match LBA in CDB + N
2983 ctx->ref_tag = cpu_to_le32(lba);
2984 if (!qla_tgt_ref_mask_check(se_cmd) ||
2985 !(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
2986 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2989 /* enable ALL bytes of the ref tag */
2990 ctx->ref_tag_mask[0] = 0xff;
2991 ctx->ref_tag_mask[1] = 0xff;
2992 ctx->ref_tag_mask[2] = 0xff;
2993 ctx->ref_tag_mask[3] = 0xff;
2995 case TARGET_DIF_TYPE3_PROT:
2996 /* For TYPE 3 protection: 16 bit GUARD only */
2997 *pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
2998 ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] =
2999 ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00;
3005 qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm)
3007 struct dsd64 *cur_dsd;
3008 uint32_t transfer_length = 0;
3009 uint32_t data_bytes;
3011 uint8_t bundling = 1;
3012 struct crc_context *crc_ctx_pkt = NULL;
3013 struct qla_hw_data *ha;
3014 struct ctio_crc2_to_fw *pkt;
3015 dma_addr_t crc_ctx_dma;
3016 uint16_t fw_prot_opts = 0;
3017 struct qla_tgt_cmd *cmd = prm->cmd;
3018 struct se_cmd *se_cmd = &cmd->se_cmd;
3020 struct atio_from_isp *atio = &prm->cmd->atio;
3021 struct qla_tc_param tc;
3023 scsi_qla_host_t *vha = cmd->vha;
3027 pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr;
3029 memset(pkt, 0, sizeof(*pkt));
3031 ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071,
3032 "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n",
3033 cmd->vp_idx, __func__, se_cmd, se_cmd->prot_op,
3034 prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba);
3036 if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) ||
3037 (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP))
3040 /* Compute dif len and adjust data len to incude protection */
3041 data_bytes = cmd->bufflen;
3042 dif_bytes = (data_bytes / cmd->blk_sz) * 8;
3044 switch (se_cmd->prot_op) {
3045 case TARGET_PROT_DIN_INSERT:
3046 case TARGET_PROT_DOUT_STRIP:
3047 transfer_length = data_bytes;
3048 if (cmd->prot_sg_cnt)
3049 data_bytes += dif_bytes;
3051 case TARGET_PROT_DIN_STRIP:
3052 case TARGET_PROT_DOUT_INSERT:
3053 case TARGET_PROT_DIN_PASS:
3054 case TARGET_PROT_DOUT_PASS:
3055 transfer_length = data_bytes + dif_bytes;
3062 if (!qlt_hba_err_chk_enabled(se_cmd))
3063 fw_prot_opts |= 0x10; /* Disable Guard tag checking */
3064 /* HBA error checking enabled */
3065 else if (IS_PI_UNINIT_CAPABLE(ha)) {
3066 if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
3067 (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
3068 fw_prot_opts |= PO_DIS_VALD_APP_ESC;
3069 else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
3070 fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
3073 switch (se_cmd->prot_op) {
3074 case TARGET_PROT_DIN_INSERT:
3075 case TARGET_PROT_DOUT_INSERT:
3076 fw_prot_opts |= PO_MODE_DIF_INSERT;
3078 case TARGET_PROT_DIN_STRIP:
3079 case TARGET_PROT_DOUT_STRIP:
3080 fw_prot_opts |= PO_MODE_DIF_REMOVE;
3082 case TARGET_PROT_DIN_PASS:
3083 case TARGET_PROT_DOUT_PASS:
3084 fw_prot_opts |= PO_MODE_DIF_PASS;
3085 /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */
3087 default:/* Normal Request */
3088 fw_prot_opts |= PO_MODE_DIF_PASS;
3093 /* Update entry type to indicate Command Type CRC_2 IOCB */
3094 pkt->entry_type = CTIO_CRC2;
3095 pkt->entry_count = 1;
3096 pkt->vp_index = cmd->vp_idx;
3098 h = qlt_make_handle(qpair);
3099 if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
3101 * CTIO type 7 from the firmware doesn't provide a way to
3102 * know the initiator's LOOP ID, hence we can't find
3103 * the session and, so, the command.
3107 qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
3109 pkt->handle = make_handle(qpair->req->id, h);
3110 pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
3111 pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
3112 pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3113 pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
3114 pkt->exchange_addr = atio->u.isp24.exchange_addr;
3116 /* silence compile warning */
3117 t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3118 pkt->ox_id = cpu_to_le16(t16);
3120 t16 = (atio->u.isp24.attr << 9);
3121 pkt->flags |= cpu_to_le16(t16);
3122 pkt->relative_offset = cpu_to_le32(prm->cmd->offset);
3124 /* Set transfer direction */
3125 if (cmd->dma_data_direction == DMA_TO_DEVICE)
3126 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN);
3127 else if (cmd->dma_data_direction == DMA_FROM_DEVICE)
3128 pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT);
3130 pkt->dseg_count = cpu_to_le16(prm->tot_dsds);
3131 /* Fibre channel byte count */
3132 pkt->transfer_length = cpu_to_le32(transfer_length);
3134 /* ----- CRC context -------- */
3136 /* Allocate CRC context from global pool */
3137 crc_ctx_pkt = cmd->ctx =
3138 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
3141 goto crc_queuing_error;
3143 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
3144 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
3147 crc_ctx_pkt->handle = pkt->handle;
3149 qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts);
3151 put_unaligned_le64(crc_ctx_dma, &pkt->crc_context_address);
3152 pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW);
3155 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
3158 * Configure Bundling if we need to fetch interlaving
3159 * protection PCI accesses
3161 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
3162 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
3163 crc_ctx_pkt->u.bundling.dseg_count =
3164 cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt);
3165 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0];
3168 /* Finish the common fields of CRC pkt */
3169 crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz);
3170 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
3171 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
3172 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
3174 memset((uint8_t *)&tc, 0 , sizeof(tc));
3176 tc.blk_sz = cmd->blk_sz;
3177 tc.bufflen = cmd->bufflen;
3179 tc.prot_sg = cmd->prot_sg;
3180 tc.ctx = crc_ctx_pkt;
3181 tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced;
3183 /* Walks data segments */
3184 pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR);
3186 if (!bundling && prm->prot_seg_cnt) {
3187 if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd,
3188 prm->tot_dsds, &tc))
3189 goto crc_queuing_error;
3190 } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd,
3191 (prm->tot_dsds - prm->prot_seg_cnt), &tc))
3192 goto crc_queuing_error;
3194 if (bundling && prm->prot_seg_cnt) {
3195 /* Walks dif segments */
3196 pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA;
3198 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
3199 if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd,
3200 prm->prot_seg_cnt, cmd))
3201 goto crc_queuing_error;
3206 /* Cleanup will be performed by the caller */
3207 qpair->req->outstanding_cmds[h] = NULL;
3209 return QLA_FUNCTION_FAILED;
3213 * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and *
3214 * QLA_TGT_XMIT_STATUS for >= 24xx silicon
3216 int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
3217 uint8_t scsi_status)
3219 struct scsi_qla_host *vha = cmd->vha;
3220 struct qla_qpair *qpair = cmd->qpair;
3221 struct ctio7_to_24xx *pkt;
3222 struct qla_tgt_prm prm;
3223 uint32_t full_req_cnt = 0;
3224 unsigned long flags = 0;
3227 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3228 (cmd->sess && cmd->sess->deleted)) {
3229 cmd->state = QLA_TGT_STATE_PROCESSED;
3233 ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018,
3234 "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n",
3235 (xmit_type & QLA_TGT_XMIT_STATUS) ?
3236 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction,
3237 &cmd->se_cmd, qpair->id);
3239 res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
3241 if (unlikely(res != 0)) {
3245 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3247 if (xmit_type == QLA_TGT_XMIT_STATUS)
3248 qpair->tgt_counters.core_qla_snd_status++;
3250 qpair->tgt_counters.core_qla_que_buf++;
3252 if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) {
3254 * Either the port is not online or this request was from
3255 * previous life, just abort the processing.
3257 cmd->state = QLA_TGT_STATE_PROCESSED;
3258 ql_dbg_qp(ql_dbg_async, qpair, 0xe101,
3259 "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
3260 vha->flags.online, qla2x00_reset_active(vha),
3261 cmd->reset_count, qpair->chip_reset);
3262 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3266 /* Does F/W have an IOCBs for this request */
3267 res = qlt_check_reserve_free_req(qpair, full_req_cnt);
3269 goto out_unmap_unlock;
3271 if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA))
3272 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3274 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3275 if (unlikely(res != 0)) {
3276 qpair->req->cnt += full_req_cnt;
3277 goto out_unmap_unlock;
3280 pkt = (struct ctio7_to_24xx *)prm.pkt;
3282 if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
3283 pkt->u.status0.flags |=
3284 cpu_to_le16(CTIO7_FLAGS_DATA_IN |
3285 CTIO7_FLAGS_STATUS_MODE_0);
3287 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3288 qlt_load_data_segments(&prm);
3290 if (prm.add_status_pkt == 0) {
3291 if (xmit_type & QLA_TGT_XMIT_STATUS) {
3292 pkt->u.status0.scsi_status =
3293 cpu_to_le16(prm.rq_result);
3294 pkt->u.status0.residual =
3295 cpu_to_le32(prm.residual);
3296 pkt->u.status0.flags |= cpu_to_le16(
3297 CTIO7_FLAGS_SEND_STATUS);
3298 if (qlt_need_explicit_conf(cmd, 0)) {
3299 pkt->u.status0.flags |=
3301 CTIO7_FLAGS_EXPLICIT_CONFORM |
3302 CTIO7_FLAGS_CONFORM_REQ);
3308 * We have already made sure that there is sufficient
3309 * amount of request entries to not drop HW lock in
3312 struct ctio7_to_24xx *ctio =
3313 (struct ctio7_to_24xx *)qlt_get_req_pkt(
3316 ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e,
3317 "Building additional status packet 0x%p.\n",
3321 * T10Dif: ctio_crc2_to_fw overlay ontop of
3324 memcpy(ctio, pkt, sizeof(*ctio));
3325 /* reset back to CTIO7 */
3326 ctio->entry_count = 1;
3327 ctio->entry_type = CTIO_TYPE7;
3328 ctio->dseg_count = 0;
3329 ctio->u.status1.flags &= ~cpu_to_le16(
3330 CTIO7_FLAGS_DATA_IN);
3332 /* Real finish is ctio_m1's finish */
3333 pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
3334 pkt->u.status0.flags |= cpu_to_le16(
3335 CTIO7_FLAGS_DONT_RET_CTIO);
3337 /* qlt_24xx_init_ctio_to_isp will correct
3338 * all neccessary fields that's part of CTIO7.
3339 * There should be no residual of CTIO-CRC2 data.
3341 qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio,
3345 qlt_24xx_init_ctio_to_isp(pkt, &prm);
3348 cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */
3349 cmd->cmd_sent_to_fw = 1;
3350 cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
3352 /* Memory Barrier */
3354 if (qpair->reqq_start_iocbs)
3355 qpair->reqq_start_iocbs(qpair);
3357 qla2x00_start_iocbs(vha, qpair->req);
3358 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3363 qlt_unmap_sg(vha, cmd);
3364 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3368 EXPORT_SYMBOL(qlt_xmit_response);
3370 int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
3372 struct ctio7_to_24xx *pkt;
3373 struct scsi_qla_host *vha = cmd->vha;
3374 struct qla_tgt *tgt = cmd->tgt;
3375 struct qla_tgt_prm prm;
3376 unsigned long flags = 0;
3378 struct qla_qpair *qpair = cmd->qpair;
3380 memset(&prm, 0, sizeof(prm));
3386 /* Calculate number of entries and segments required */
3387 if (qlt_pci_map_calc_cnt(&prm) != 0)
3390 if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
3391 (cmd->sess && cmd->sess->deleted)) {
3393 * Either the port is not online or this request was from
3394 * previous life, just abort the processing.
3397 cmd->write_data_transferred = 0;
3398 cmd->state = QLA_TGT_STATE_DATA_IN;
3399 vha->hw->tgt.tgt_ops->handle_data(cmd);
3400 ql_dbg_qp(ql_dbg_async, qpair, 0xe102,
3401 "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
3402 vha->flags.online, qla2x00_reset_active(vha),
3403 cmd->reset_count, qpair->chip_reset);
3407 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3408 /* Does F/W have an IOCBs for this request */
3409 res = qlt_check_reserve_free_req(qpair, prm.req_cnt);
3411 goto out_unlock_free_unmap;
3412 if (cmd->se_cmd.prot_op)
3413 res = qlt_build_ctio_crc2_pkt(qpair, &prm);
3415 res = qlt_24xx_build_ctio_pkt(qpair, &prm);
3417 if (unlikely(res != 0)) {
3418 qpair->req->cnt += prm.req_cnt;
3419 goto out_unlock_free_unmap;
3422 pkt = (struct ctio7_to_24xx *)prm.pkt;
3423 pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
3424 CTIO7_FLAGS_STATUS_MODE_0);
3426 if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
3427 qlt_load_data_segments(&prm);
3429 cmd->state = QLA_TGT_STATE_NEED_DATA;
3430 cmd->cmd_sent_to_fw = 1;
3431 cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
3433 /* Memory Barrier */
3435 if (qpair->reqq_start_iocbs)
3436 qpair->reqq_start_iocbs(qpair);
3438 qla2x00_start_iocbs(vha, qpair->req);
3439 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3443 out_unlock_free_unmap:
3444 qlt_unmap_sg(vha, cmd);
3445 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3449 EXPORT_SYMBOL(qlt_rdy_to_xfer);
3453 * it is assumed either hardware_lock or qpair lock is held.
3456 qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
3457 struct ctio_crc_from_fw *sts)
3459 uint8_t *ap = &sts->actual_dif[0];
3460 uint8_t *ep = &sts->expected_dif[0];
3461 uint64_t lba = cmd->se_cmd.t_task_lba;
3462 uint8_t scsi_status, sense_key, asc, ascq;
3463 unsigned long flags;
3464 struct scsi_qla_host *vha = cmd->vha;
3466 cmd->trc_flags |= TRC_DIF_ERR;
3468 cmd->a_guard = get_unaligned_be16(ap + 0);
3469 cmd->a_app_tag = get_unaligned_be16(ap + 2);
3470 cmd->a_ref_tag = get_unaligned_be32(ap + 4);
3472 cmd->e_guard = get_unaligned_be16(ep + 0);
3473 cmd->e_app_tag = get_unaligned_be16(ep + 2);
3474 cmd->e_ref_tag = get_unaligned_be32(ep + 4);
3476 ql_dbg(ql_dbg_tgt_dif, vha, 0xf075,
3477 "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state);
3479 scsi_status = sense_key = asc = ascq = 0;
3481 /* check appl tag */
3482 if (cmd->e_app_tag != cmd->a_app_tag) {
3483 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d,
3484 "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]",
3485 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3486 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3487 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3488 cmd->atio.u.isp24.fcp_hdr.ox_id);
3490 cmd->dif_err_code = DIF_ERR_APP;
3491 scsi_status = SAM_STAT_CHECK_CONDITION;
3492 sense_key = ABORTED_COMMAND;
3498 if (cmd->e_ref_tag != cmd->a_ref_tag) {
3499 ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e,
3500 "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] ",
3501 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3502 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3503 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3504 cmd->atio.u.isp24.fcp_hdr.ox_id);
3506 cmd->dif_err_code = DIF_ERR_REF;
3507 scsi_status = SAM_STAT_CHECK_CONDITION;
3508 sense_key = ABORTED_COMMAND;
3515 if (cmd->e_guard != cmd->a_guard) {
3516 ql_dbg(ql_dbg_tgt_dif, vha, 0xe012,
3517 "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]",
3518 cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
3519 cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
3520 cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
3521 cmd->atio.u.isp24.fcp_hdr.ox_id);
3523 cmd->dif_err_code = DIF_ERR_GRD;
3524 scsi_status = SAM_STAT_CHECK_CONDITION;
3525 sense_key = ABORTED_COMMAND;
3530 switch (cmd->state) {
3531 case QLA_TGT_STATE_NEED_DATA:
3532 /* handle_data will load DIF error code */
3533 cmd->state = QLA_TGT_STATE_DATA_IN;
3534 vha->hw->tgt.tgt_ops->handle_data(cmd);
3537 spin_lock_irqsave(&cmd->cmd_lock, flags);
3539 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3540 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3543 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3545 qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc,
3547 /* assume scsi status gets out on the wire.
3548 * Will not wait for completion.
3550 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3555 /* If hardware_lock held on entry, might drop it, then reaquire */
3556 /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */
3557 static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3558 struct imm_ntfy_from_isp *ntfy)
3560 struct nack_to_isp *nack;
3561 struct qla_hw_data *ha = vha->hw;
3565 ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c,
3566 "Sending TERM ELS CTIO (ha=%p)\n", ha);
3568 pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
3570 ql_dbg(ql_dbg_tgt, vha, 0xe080,
3571 "qla_target(%d): %s failed: unable to allocate "
3572 "request packet\n", vha->vp_idx, __func__);
3576 pkt->entry_type = NOTIFY_ACK_TYPE;
3577 pkt->entry_count = 1;
3578 pkt->handle = QLA_TGT_SKIP_HANDLE;
3580 nack = (struct nack_to_isp *)pkt;
3581 nack->ox_id = ntfy->ox_id;
3583 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3584 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3585 nack->u.isp24.flags = ntfy->u.isp24.flags &
3586 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
3590 nack->u.isp24.flags |=
3591 __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE);
3593 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3594 nack->u.isp24.status = ntfy->u.isp24.status;
3595 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3596 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3597 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3598 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3599 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3600 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3602 qla2x00_start_iocbs(vha, vha->req);
3606 static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
3607 struct imm_ntfy_from_isp *imm, int ha_locked)
3611 WARN_ON_ONCE(!ha_locked);
3612 rc = __qlt_send_term_imm_notif(vha, imm);
3613 pr_debug("rc = %d\n", rc);
3617 * If hardware_lock held on entry, might drop it, then reaquire
3618 * This function sends the appropriate CTIO to ISP 2xxx or 24xx
3620 static int __qlt_send_term_exchange(struct qla_qpair *qpair,
3621 struct qla_tgt_cmd *cmd,
3622 struct atio_from_isp *atio)
3624 struct scsi_qla_host *vha = qpair->vha;
3625 struct ctio7_to_24xx *ctio24;
3626 struct qla_hw_data *ha = vha->hw;
3631 ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha);
3636 pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL);
3638 ql_dbg(ql_dbg_tgt, vha, 0xe050,
3639 "qla_target(%d): %s failed: unable to allocate "
3640 "request packet\n", vha->vp_idx, __func__);
3645 if (cmd->state < QLA_TGT_STATE_PROCESSED) {
3646 ql_dbg(ql_dbg_tgt, vha, 0xe051,
3647 "qla_target(%d): Terminating cmd %p with "
3648 "incorrect state %d\n", vha->vp_idx, cmd,
3654 qpair->tgt_counters.num_term_xchg_sent++;
3655 pkt->entry_count = 1;
3656 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
3658 ctio24 = (struct ctio7_to_24xx *)pkt;
3659 ctio24->entry_type = CTIO_TYPE7;
3660 ctio24->nport_handle = cpu_to_le16(CTIO7_NHANDLE_UNRECOGNIZED);
3661 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
3662 ctio24->vp_index = vha->vp_idx;
3663 ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
3664 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
3665 temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 |
3666 CTIO7_FLAGS_TERMINATE;
3667 ctio24->u.status1.flags = cpu_to_le16(temp);
3668 temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
3669 ctio24->u.status1.ox_id = cpu_to_le16(temp);
3671 /* Memory Barrier */
3673 if (qpair->reqq_start_iocbs)
3674 qpair->reqq_start_iocbs(qpair);
3676 qla2x00_start_iocbs(vha, qpair->req);
3680 static void qlt_send_term_exchange(struct qla_qpair *qpair,
3681 struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked,
3684 struct scsi_qla_host *vha;
3685 unsigned long flags = 0;
3688 /* why use different vha? NPIV */
3695 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3697 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3700 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
3701 rc = __qlt_send_term_exchange(qpair, cmd, atio);
3703 qlt_alloc_qfull_cmd(vha, atio, 0, 0);
3706 if (cmd && !ul_abort && !cmd->aborted) {
3708 qlt_unmap_sg(vha, cmd);
3709 vha->hw->tgt.tgt_ops->free_cmd(cmd);
3713 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
3718 static void qlt_init_term_exchange(struct scsi_qla_host *vha)
3720 struct list_head free_list;
3721 struct qla_tgt_cmd *cmd, *tcmd;
3723 vha->hw->tgt.leak_exchg_thresh_hold =
3724 (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT;
3727 if (!list_empty(&vha->hw->tgt.q_full_list)) {
3728 INIT_LIST_HEAD(&free_list);
3729 list_splice_init(&vha->hw->tgt.q_full_list, &free_list);
3731 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
3732 list_del(&cmd->cmd_list);
3733 /* This cmd was never sent to TCM. There is no need
3734 * to schedule free or call free_cmd
3737 vha->hw->tgt.num_qfull_cmds_alloc--;
3740 vha->hw->tgt.num_qfull_cmds_dropped = 0;
3743 static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha)
3745 uint32_t total_leaked;
3747 total_leaked = vha->hw->tgt.num_qfull_cmds_dropped;
3749 if (vha->hw->tgt.leak_exchg_thresh_hold &&
3750 (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) {
3752 ql_dbg(ql_dbg_tgt, vha, 0xe079,
3753 "Chip reset due to exchange starvation: %d/%d.\n",
3754 total_leaked, vha->hw->cur_fw_xcb_count);
3756 if (IS_P3P_TYPE(vha->hw))
3757 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3759 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3760 qla2xxx_wake_dpc(vha);
3765 int qlt_abort_cmd(struct qla_tgt_cmd *cmd)
3767 struct qla_tgt *tgt = cmd->tgt;
3768 struct scsi_qla_host *vha = tgt->vha;
3769 struct se_cmd *se_cmd = &cmd->se_cmd;
3770 unsigned long flags;
3772 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
3773 "qla_target(%d): terminating exchange for aborted cmd=%p "
3774 "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd,
3777 spin_lock_irqsave(&cmd->cmd_lock, flags);
3779 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3781 * It's normal to see 2 calls in this path:
3782 * 1) XFER Rdy completion + CMD_T_ABORT
3783 * 2) TCM TMR - drain_state_list
3785 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016,
3786 "multiple abort. %p transport_state %x, t_state %x, "
3787 "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state,
3788 cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags);
3792 cmd->trc_flags |= TRC_ABORT;
3793 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
3795 qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1);
3798 EXPORT_SYMBOL(qlt_abort_cmd);
3800 void qlt_free_cmd(struct qla_tgt_cmd *cmd)
3802 struct fc_port *sess = cmd->sess;
3804 ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074,
3805 "%s: se_cmd[%p] ox_id %04x\n",
3806 __func__, &cmd->se_cmd,
3807 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
3809 BUG_ON(cmd->cmd_in_wq);
3812 qlt_unmap_sg(cmd->vha, cmd);
3815 qlt_decr_num_pend_cmds(cmd->vha);
3817 BUG_ON(cmd->sg_mapped);
3818 cmd->jiffies_at_free = get_jiffies_64();
3819 if (unlikely(cmd->free_sg))
3822 if (!sess || !sess->se_sess) {
3826 cmd->jiffies_at_free = get_jiffies_64();
3827 cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
3829 EXPORT_SYMBOL(qlt_free_cmd);
3832 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3834 static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio,
3835 struct qla_tgt_cmd *cmd, uint32_t status)
3838 struct scsi_qla_host *vha = qpair->vha;
3840 if (cmd->se_cmd.prot_op)
3841 ql_dbg(ql_dbg_tgt_dif, vha, 0xe013,
3842 "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] "
3843 "se_cmd=%p tag[%x] op %#x/%s",
3845 cmd->num_blks, &cmd->se_cmd,
3846 cmd->atio.u.isp24.exchange_addr,
3847 cmd->se_cmd.prot_op,
3848 prot_op_str(cmd->se_cmd.prot_op));
3851 struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
3854 cpu_to_le16(OF_TERM_EXCH));
3859 qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0);
3865 /* ha->hardware_lock supposed to be held on entry */
3866 static void *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
3867 struct rsp_que *rsp, uint32_t handle, void *ctio)
3870 struct req_que *req;
3871 int qid = GET_QID(handle);
3872 uint32_t h = handle & ~QLA_TGT_HANDLE_MASK;
3874 if (unlikely(h == QLA_TGT_SKIP_HANDLE))
3877 if (qid == rsp->req->id) {
3879 } else if (vha->hw->req_q_map[qid]) {
3880 ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a,
3881 "qla_target(%d): CTIO completion with different QID %d handle %x\n",
3882 vha->vp_idx, rsp->id, handle);
3883 req = vha->hw->req_q_map[qid];
3888 h &= QLA_CMD_HANDLE_MASK;
3890 if (h != QLA_TGT_NULL_HANDLE) {
3891 if (unlikely(h >= req->num_outstanding_cmds)) {
3892 ql_dbg(ql_dbg_tgt, vha, 0xe052,
3893 "qla_target(%d): Wrong handle %x received\n",
3894 vha->vp_idx, handle);
3898 cmd = req->outstanding_cmds[h];
3899 if (unlikely(cmd == NULL)) {
3900 ql_dbg(ql_dbg_async, vha, 0xe053,
3901 "qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n",
3902 vha->vp_idx, handle, req->id, rsp->id);
3905 req->outstanding_cmds[h] = NULL;
3906 } else if (ctio != NULL) {
3907 /* We can't get loop ID from CTIO7 */
3908 ql_dbg(ql_dbg_tgt, vha, 0xe054,
3909 "qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
3910 "support NULL handles\n", vha->vp_idx);
3918 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3920 static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
3921 struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio)
3923 struct qla_hw_data *ha = vha->hw;
3924 struct se_cmd *se_cmd;
3925 struct qla_tgt_cmd *cmd;
3926 struct qla_qpair *qpair = rsp->qpair;
3928 if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
3929 /* That could happen only in case of an error/reset/abort */
3930 if (status != CTIO_SUCCESS) {
3931 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
3932 "Intermediate CTIO received"
3933 " (status %x)\n", status);
3938 cmd = qlt_ctio_to_cmd(vha, rsp, handle, ctio);
3942 se_cmd = &cmd->se_cmd;
3943 cmd->cmd_sent_to_fw = 0;
3945 qlt_unmap_sg(vha, cmd);
3947 if (unlikely(status != CTIO_SUCCESS)) {
3948 switch (status & 0xFFFF) {
3949 case CTIO_INVALID_RX_ID:
3950 if (printk_ratelimit())
3951 dev_info(&vha->hw->pdev->dev,
3952 "qla_target(%d): CTIO with INVALID_RX_ID ATIO attr %x CTIO Flags %x|%x\n",
3953 vha->vp_idx, cmd->atio.u.isp24.attr,
3954 ((cmd->ctio_flags >> 9) & 0xf),
3958 case CTIO_LIP_RESET:
3959 case CTIO_TARGET_RESET:
3961 /* driver request abort via Terminate exchange */
3964 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
3965 "qla_target(%d): CTIO with "
3966 "status %#x received, state %x, se_cmd %p, "
3967 "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
3968 "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx,
3969 status, cmd->state, se_cmd);
3972 case CTIO_PORT_LOGGED_OUT:
3973 case CTIO_PORT_UNAVAILABLE:
3976 (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT;
3978 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
3979 "qla_target(%d): CTIO with %s status %x "
3980 "received (state %x, se_cmd %p)\n", vha->vp_idx,
3981 logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
3982 status, cmd->state, se_cmd);
3984 if (logged_out && cmd->sess) {
3986 * Session is already logged out, but we need
3987 * to notify initiator, who's not aware of this
3989 cmd->sess->send_els_logo = 1;
3990 ql_dbg(ql_dbg_disc, vha, 0x20f8,
3991 "%s %d %8phC post del sess\n",
3992 __func__, __LINE__, cmd->sess->port_name);
3994 qlt_schedule_sess_for_deletion(cmd->sess);
3998 case CTIO_DIF_ERROR: {
3999 struct ctio_crc_from_fw *crc =
4000 (struct ctio_crc_from_fw *)ctio;
4001 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073,
4002 "qla_target(%d): CTIO with DIF_ERROR status %x "
4003 "received (state %x, ulp_cmd %p) actual_dif[0x%llx] "
4004 "expect_dif[0x%llx]\n",
4005 vha->vp_idx, status, cmd->state, se_cmd,
4006 *((u64 *)&crc->actual_dif[0]),
4007 *((u64 *)&crc->expected_dif[0]));
4009 qlt_handle_dif_error(qpair, cmd, ctio);
4013 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
4014 "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n",
4015 vha->vp_idx, status, cmd->state, se_cmd);
4020 /* "cmd->aborted" means
4021 * cmd is already aborted/terminated, we don't
4022 * need to terminate again. The exchange is already
4023 * cleaned up/freed at FW level. Just cleanup at driver
4026 if ((cmd->state != QLA_TGT_STATE_NEED_DATA) &&
4028 cmd->trc_flags |= TRC_CTIO_ERR;
4029 if (qlt_term_ctio_exchange(qpair, ctio, cmd, status))
4034 if (cmd->state == QLA_TGT_STATE_PROCESSED) {
4035 cmd->trc_flags |= TRC_CTIO_DONE;
4036 } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
4037 cmd->state = QLA_TGT_STATE_DATA_IN;
4039 if (status == CTIO_SUCCESS)
4040 cmd->write_data_transferred = 1;
4042 ha->tgt.tgt_ops->handle_data(cmd);
4044 } else if (cmd->aborted) {
4045 cmd->trc_flags |= TRC_CTIO_ABORTED;
4046 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
4047 "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
4049 cmd->trc_flags |= TRC_CTIO_STRANGE;
4050 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
4051 "qla_target(%d): A command in state (%d) should "
4052 "not return a CTIO complete\n", vha->vp_idx, cmd->state);
4055 if (unlikely(status != CTIO_SUCCESS) &&
4057 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n");
4061 ha->tgt.tgt_ops->free_cmd(cmd);
4064 static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
4069 switch (task_codes) {
4070 case ATIO_SIMPLE_QUEUE:
4071 fcp_task_attr = TCM_SIMPLE_TAG;
4073 case ATIO_HEAD_OF_QUEUE:
4074 fcp_task_attr = TCM_HEAD_TAG;
4076 case ATIO_ORDERED_QUEUE:
4077 fcp_task_attr = TCM_ORDERED_TAG;
4079 case ATIO_ACA_QUEUE:
4080 fcp_task_attr = TCM_ACA_TAG;
4083 fcp_task_attr = TCM_SIMPLE_TAG;
4086 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
4087 "qla_target: unknown task code %x, use ORDERED instead\n",
4089 fcp_task_attr = TCM_ORDERED_TAG;
4093 return fcp_task_attr;
4097 * Process context for I/O path into tcm_qla2xxx code
4099 static void __qlt_do_work(struct qla_tgt_cmd *cmd)
4101 scsi_qla_host_t *vha = cmd->vha;
4102 struct qla_hw_data *ha = vha->hw;
4103 struct fc_port *sess = cmd->sess;
4104 struct atio_from_isp *atio = &cmd->atio;
4106 unsigned long flags;
4107 uint32_t data_length;
4108 int ret, fcp_task_attr, data_dir, bidi = 0;
4109 struct qla_qpair *qpair = cmd->qpair;
4112 cmd->trc_flags |= TRC_DO_WORK;
4115 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082,
4116 "cmd with tag %u is aborted\n",
4117 cmd->atio.u.isp24.exchange_addr);
4121 spin_lock_init(&cmd->cmd_lock);
4122 cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
4123 cmd->se_cmd.tag = le32_to_cpu(atio->u.isp24.exchange_addr);
4125 if (atio->u.isp24.fcp_cmnd.rddata &&
4126 atio->u.isp24.fcp_cmnd.wrdata) {
4128 data_dir = DMA_TO_DEVICE;
4129 } else if (atio->u.isp24.fcp_cmnd.rddata)
4130 data_dir = DMA_FROM_DEVICE;
4131 else if (atio->u.isp24.fcp_cmnd.wrdata)
4132 data_dir = DMA_TO_DEVICE;
4134 data_dir = DMA_NONE;
4136 fcp_task_attr = qlt_get_fcp_task_attr(vha,
4137 atio->u.isp24.fcp_cmnd.task_attr);
4138 data_length = get_datalen_for_atio(atio);
4140 ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length,
4141 fcp_task_attr, data_dir, bidi);
4145 * Drop extra session reference from qlt_handle_cmd_for_atio().
4147 ha->tgt.tgt_ops->put_sess(sess);
4151 ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd);
4153 * cmd has not sent to target yet, so pass NULL as the second
4154 * argument to qlt_send_term_exchange() and free the memory here.
4156 cmd->trc_flags |= TRC_DO_WORK_ERR;
4157 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
4158 qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0);
4160 qlt_decr_num_pend_cmds(vha);
4161 cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
4162 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
4164 ha->tgt.tgt_ops->put_sess(sess);
4167 static void qlt_do_work(struct work_struct *work)
4169 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
4170 scsi_qla_host_t *vha = cmd->vha;
4171 unsigned long flags;
4173 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4174 list_del(&cmd->cmd_list);
4175 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4180 void qlt_clr_qp_table(struct scsi_qla_host *vha)
4182 unsigned long flags;
4183 struct qla_hw_data *ha = vha->hw;
4184 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4188 ql_log(ql_log_info, vha, 0x706c,
4189 "User update Number of Active Qpairs %d\n",
4190 ha->tgt.num_act_qpairs);
4192 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4194 btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
4195 btree_remove64(&tgt->lun_qpair_map, key);
4197 ha->base_qpair->lun_cnt = 0;
4198 for (key = 0; key < ha->max_qpairs; key++)
4199 if (ha->queue_pair_map[key])
4200 ha->queue_pair_map[key]->lun_cnt = 0;
4202 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4205 static void qlt_assign_qpair(struct scsi_qla_host *vha,
4206 struct qla_tgt_cmd *cmd)
4208 struct qla_qpair *qpair, *qp;
4209 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4210 struct qla_qpair_hint *h;
4212 if (vha->flags.qpairs_available) {
4213 h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun);
4215 /* spread lun to qpair ratio evently */
4217 struct scsi_qla_host *base_vha =
4218 pci_get_drvdata(vha->hw->pdev);
4220 qpair = vha->hw->base_qpair;
4221 if (qpair->lun_cnt == 0) {
4223 h = qla_qpair_to_hint(tgt, qpair);
4225 rc = btree_insert64(&tgt->lun_qpair_map,
4226 cmd->unpacked_lun, h, GFP_ATOMIC);
4229 ql_log(ql_log_info, vha, 0xd037,
4230 "Unable to insert lun %llx into lun_qpair_map\n",
4235 lcnt = qpair->lun_cnt;
4239 list_for_each_entry(qp, &base_vha->qp_list,
4241 if (qp->lun_cnt == 0) {
4243 h = qla_qpair_to_hint(tgt, qp);
4245 rc = btree_insert64(&tgt->lun_qpair_map,
4246 cmd->unpacked_lun, h, GFP_ATOMIC);
4249 ql_log(ql_log_info, vha, 0xd038,
4250 "Unable to insert lun %llx into lun_qpair_map\n",
4256 if (qp->lun_cnt < lcnt) {
4265 h = qla_qpair_to_hint(tgt, qpair);
4267 rc = btree_insert64(&tgt->lun_qpair_map,
4268 cmd->unpacked_lun, h, GFP_ATOMIC);
4271 ql_log(ql_log_info, vha, 0xd039,
4272 "Unable to insert lun %llx into lun_qpair_map\n",
4277 h = &tgt->qphints[0];
4280 cmd->qpair = h->qpair;
4281 cmd->se_cmd.cpuid = h->cpuid;
4284 static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
4285 struct fc_port *sess,
4286 struct atio_from_isp *atio)
4288 struct qla_tgt_cmd *cmd;
4290 cmd = vha->hw->tgt.tgt_ops->get_cmd(sess);
4294 cmd->cmd_type = TYPE_TGT_CMD;
4295 memcpy(&cmd->atio, atio, sizeof(*atio));
4296 INIT_LIST_HEAD(&cmd->sess_cmd_list);
4297 cmd->state = QLA_TGT_STATE_NEW;
4298 cmd->tgt = vha->vha_tgt.qla_tgt;
4299 qlt_incr_num_pend_cmds(vha);
4302 cmd->loop_id = sess->loop_id;
4303 cmd->conf_compl_supported = sess->conf_compl_supported;
4306 cmd->jiffies_at_alloc = get_jiffies_64();
4308 cmd->unpacked_lun = scsilun_to_int(
4309 (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
4310 qlt_assign_qpair(vha, cmd);
4311 cmd->reset_count = vha->hw->base_qpair->chip_reset;
4312 cmd->vp_idx = vha->vp_idx;
4317 /* ha->hardware_lock supposed to be held on entry */
4318 static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
4319 struct atio_from_isp *atio)
4321 struct qla_hw_data *ha = vha->hw;
4322 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4323 struct fc_port *sess;
4324 struct qla_tgt_cmd *cmd;
4325 unsigned long flags;
4328 if (unlikely(tgt->tgt_stop)) {
4329 ql_dbg(ql_dbg_io, vha, 0x3061,
4330 "New command while device %p is shutting down\n", tgt);
4334 id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
4335 if (IS_SW_RESV_ADDR(id))
4338 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
4339 if (unlikely(!sess))
4342 /* Another WWN used to have our s_id. Our PLOGI scheduled its
4343 * session deletion, but it's still in sess_del_work wq */
4344 if (sess->deleted) {
4345 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
4346 "New command while old session %p is being deleted\n",
4352 * Do kref_get() before returning + dropping qla_hw_data->hardware_lock.
4354 if (!kref_get_unless_zero(&sess->sess_kref)) {
4355 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
4356 "%s: kref_get fail, %8phC oxid %x \n",
4357 __func__, sess->port_name,
4358 be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
4362 cmd = qlt_get_tag(vha, sess, atio);
4364 ql_dbg(ql_dbg_io, vha, 0x3062,
4365 "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
4366 ha->tgt.tgt_ops->put_sess(sess);
4371 cmd->trc_flags |= TRC_NEW_CMD;
4373 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4374 list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);
4375 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4377 INIT_WORK(&cmd->work, qlt_do_work);
4378 if (vha->flags.qpairs_available) {
4379 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work);
4380 } else if (ha->msix_count) {
4381 if (cmd->atio.u.isp24.fcp_cmnd.rddata)
4382 queue_work_on(smp_processor_id(), qla_tgt_wq,
4385 queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq,
4388 queue_work(qla_tgt_wq, &cmd->work);
4394 /* ha->hardware_lock supposed to be held on entry */
4395 static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
4396 int fn, void *iocb, int flags)
4398 struct scsi_qla_host *vha = sess->vha;
4399 struct qla_hw_data *ha = vha->hw;
4400 struct qla_tgt_mgmt_cmd *mcmd;
4401 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4402 struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
4404 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4406 ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009,
4407 "qla_target(%d): Allocation of management "
4408 "command failed, some commands and their data could "
4409 "leak\n", vha->vp_idx);
4412 memset(mcmd, 0, sizeof(*mcmd));
4416 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4417 sizeof(mcmd->orig_iocb.imm_ntfy));
4419 mcmd->tmr_func = fn;
4420 mcmd->flags = flags;
4421 mcmd->reset_count = ha->base_qpair->chip_reset;
4422 mcmd->qpair = h->qpair;
4424 mcmd->se_cmd.cpuid = h->cpuid;
4425 mcmd->unpacked_lun = lun;
4428 case QLA_TGT_LUN_RESET:
4429 case QLA_TGT_CLEAR_TS:
4430 case QLA_TGT_ABORT_TS:
4431 abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id);
4433 case QLA_TGT_CLEAR_ACA:
4434 h = qlt_find_qphint(vha, mcmd->unpacked_lun);
4435 mcmd->qpair = h->qpair;
4436 mcmd->se_cmd.cpuid = h->cpuid;
4439 case QLA_TGT_TARGET_RESET:
4440 case QLA_TGT_NEXUS_LOSS_SESS:
4441 case QLA_TGT_NEXUS_LOSS:
4442 case QLA_TGT_ABORT_ALL:
4448 INIT_WORK(&mcmd->work, qlt_do_tmr_work);
4449 queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq,
4455 /* ha->hardware_lock supposed to be held on entry */
4456 static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
4458 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4459 struct qla_hw_data *ha = vha->hw;
4460 struct fc_port *sess;
4463 unsigned long flags;
4465 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
4467 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4468 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
4469 a->u.isp24.fcp_hdr.s_id);
4470 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4473 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4475 if (sess == NULL || sess->deleted)
4478 return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
4481 /* ha->hardware_lock supposed to be held on entry */
4482 static int __qlt_abort_task(struct scsi_qla_host *vha,
4483 struct imm_ntfy_from_isp *iocb, struct fc_port *sess)
4485 struct atio_from_isp *a = (struct atio_from_isp *)iocb;
4486 struct qla_hw_data *ha = vha->hw;
4487 struct qla_tgt_mgmt_cmd *mcmd;
4491 mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
4493 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f,
4494 "qla_target(%d): %s: Allocation of ABORT cmd failed\n",
4495 vha->vp_idx, __func__);
4498 memset(mcmd, 0, sizeof(*mcmd));
4501 memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
4502 sizeof(mcmd->orig_iocb.imm_ntfy));
4505 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
4506 mcmd->reset_count = ha->base_qpair->chip_reset;
4507 mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK;
4508 mcmd->qpair = ha->base_qpair;
4510 rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func,
4511 le16_to_cpu(iocb->u.isp2x.seq_id));
4513 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060,
4514 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
4516 mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
4523 /* ha->hardware_lock supposed to be held on entry */
4524 static int qlt_abort_task(struct scsi_qla_host *vha,
4525 struct imm_ntfy_from_isp *iocb)
4527 struct qla_hw_data *ha = vha->hw;
4528 struct fc_port *sess;
4530 unsigned long flags;
4532 loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb);
4534 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
4535 sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
4536 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
4539 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025,
4540 "qla_target(%d): task abort for unexisting "
4541 "session\n", vha->vp_idx);
4542 return qlt_sched_sess_work(vha->vha_tgt.qla_tgt,
4543 QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb));
4546 return __qlt_abort_task(vha, iocb, sess);
4549 void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
4551 if (rc != MBS_COMMAND_COMPLETE) {
4552 ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093,
4553 "%s: se_sess %p / sess %p from"
4554 " port %8phC loop_id %#04x s_id %02x:%02x:%02x"
4555 " LOGO failed: %#x\n",
4559 fcport->port_name, fcport->loop_id,
4560 fcport->d_id.b.domain, fcport->d_id.b.area,
4561 fcport->d_id.b.al_pa, rc);
4564 fcport->logout_completed = 1;
4568 * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list)
4570 * Schedules sessions with matching port_id/loop_id but different wwn for
4571 * deletion. Returns existing session with matching wwn if present.
4575 qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
4576 port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess)
4578 struct fc_port *sess = NULL, *other_sess;
4581 *conflict_sess = NULL;
4583 list_for_each_entry(other_sess, &vha->vp_fcports, list) {
4585 other_wwn = wwn_to_u64(other_sess->port_name);
4587 if (wwn == other_wwn) {
4593 /* find other sess with nport_id collision */
4594 if (port_id.b24 == other_sess->d_id.b24) {
4595 if (loop_id != other_sess->loop_id) {
4596 ql_dbg(ql_dbg_disc, vha, 0x1000c,
4597 "Invalidating sess %p loop_id %d wwn %llx.\n",
4598 other_sess, other_sess->loop_id, other_wwn);
4601 * logout_on_delete is set by default, but another
4602 * session that has the same s_id/loop_id combo
4603 * might have cleared it when requested this session
4604 * deletion, so don't touch it
4606 qlt_schedule_sess_for_deletion(other_sess);
4609 * Another wwn used to have our s_id/loop_id
4610 * kill the session, but don't free the loop_id
4612 ql_dbg(ql_dbg_disc, vha, 0xf01b,
4613 "Invalidating sess %p loop_id %d wwn %llx.\n",
4614 other_sess, other_sess->loop_id, other_wwn);
4616 other_sess->keep_nport_handle = 1;
4617 if (other_sess->disc_state != DSC_DELETED)
4618 *conflict_sess = other_sess;
4619 qlt_schedule_sess_for_deletion(other_sess);
4624 /* find other sess with nport handle collision */
4625 if ((loop_id == other_sess->loop_id) &&
4626 (loop_id != FC_NO_LOOP_ID)) {
4627 ql_dbg(ql_dbg_disc, vha, 0x1000d,
4628 "Invalidating sess %p loop_id %d wwn %llx.\n",
4629 other_sess, other_sess->loop_id, other_wwn);
4631 /* Same loop_id but different s_id
4632 * Ok to kill and logout */
4633 qlt_schedule_sess_for_deletion(other_sess);
4640 /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */
4641 static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
4643 struct qla_tgt_sess_op *op;
4644 struct qla_tgt_cmd *cmd;
4647 unsigned long flags;
4649 key = (((u32)s_id->b.domain << 16) |
4650 ((u32)s_id->b.area << 8) |
4651 ((u32)s_id->b.al_pa));
4653 spin_lock_irqsave(&vha->cmd_list_lock, flags);
4654 list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) {
4655 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4657 if (op_key == key) {
4663 list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
4664 uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
4666 if (op_key == key) {
4672 list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
4673 uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
4675 if (cmd_key == key) {
4680 spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
4685 static int qlt_handle_login(struct scsi_qla_host *vha,
4686 struct imm_ntfy_from_isp *iocb)
4688 struct fc_port *sess = NULL, *conflict_sess = NULL;
4691 uint16_t loop_id, wd3_lo;
4693 struct qlt_plogi_ack_t *pla;
4694 unsigned long flags;
4696 lockdep_assert_held(&vha->hw->hardware_lock);
4698 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4700 port_id.b.domain = iocb->u.isp24.port_id[2];
4701 port_id.b.area = iocb->u.isp24.port_id[1];
4702 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4703 port_id.b.rsvd_1 = 0;
4705 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4707 /* Mark all stale commands sitting in qla_tgt_wq for deletion */
4708 abort_cmds_for_s_id(vha, &port_id);
4711 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
4712 sess = qlt_find_sess_invalidate_other(vha, wwn,
4713 port_id, loop_id, &conflict_sess);
4714 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
4716 ql_dbg(ql_dbg_disc, vha, 0xffff,
4717 "%s %d Term INOT due to WWN=0 lid=%d, NportID %06X ",
4718 __func__, __LINE__, loop_id, port_id.b24);
4719 qlt_send_term_imm_notif(vha, iocb, 1);
4723 if (IS_SW_RESV_ADDR(port_id)) {
4728 pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
4730 ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
4731 "%s %d %8phC Term INOT due to mem alloc fail",
4733 iocb->u.isp24.port_name);
4734 qlt_send_term_imm_notif(vha, iocb, 1);
4738 if (conflict_sess) {
4739 conflict_sess->login_gen++;
4740 qlt_plogi_ack_link(vha, pla, conflict_sess,
4741 QLT_PLOGI_LINK_CONFLICT);
4746 ql_dbg(ql_dbg_disc, vha, 0xffff,
4747 "%s %d %8phC post new sess\n",
4748 __func__, __LINE__, iocb->u.isp24.port_name);
4749 if (iocb->u.isp24.status_subcode == ELS_PLOGI)
4750 qla24xx_post_newsess_work(vha, &port_id,
4751 iocb->u.isp24.port_name,
4752 iocb->u.isp24.u.plogi.node_name,
4755 qla24xx_post_newsess_work(vha, &port_id,
4756 iocb->u.isp24.port_name, NULL,
4762 if (sess->disc_state == DSC_UPD_FCPORT) {
4766 * Remote port registration is still going on from
4767 * previous login. Allow it to finish before we
4768 * accept the new login.
4770 sess->next_disc_state = DSC_DELETE_PEND;
4771 sec = jiffies_to_msecs(jiffies -
4772 sess->jiffies_at_registration) / 1000;
4773 if (sess->sec_since_registration < sec && sec &&
4775 sess->sec_since_registration = sec;
4776 ql_dbg(ql_dbg_disc, vha, 0xffff,
4777 "%s %8phC - Slow Rport registration (%d Sec)\n",
4778 __func__, sess->port_name, sec);
4781 if (!conflict_sess) {
4782 list_del(&pla->list);
4783 kmem_cache_free(qla_tgt_plogi_cachep, pla);
4786 qlt_send_term_imm_notif(vha, iocb, 1);
4790 qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
4791 sess->d_id = port_id;
4794 if (iocb->u.isp24.status_subcode == ELS_PRLI) {
4795 sess->fw_login_state = DSC_LS_PRLI_PEND;
4797 sess->loop_id = loop_id;
4798 sess->d_id = port_id;
4799 sess->fw_login_state = DSC_LS_PRLI_PEND;
4800 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4803 sess->conf_compl_supported = 1;
4805 if ((wd3_lo & BIT_4) == 0)
4806 sess->port_type = FCT_INITIATOR;
4808 sess->port_type = FCT_TARGET;
4811 sess->fw_login_state = DSC_LS_PLOGI_PEND;
4814 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4815 "%s %d %8phC DS %d\n",
4816 __func__, __LINE__, sess->port_name, sess->disc_state);
4818 switch (sess->disc_state) {
4820 case DSC_LOGIN_PEND:
4821 qlt_plogi_ack_unref(vha, pla);
4826 * Under normal circumstances we want to release nport handle
4827 * during LOGO process to avoid nport handle leaks inside FW.
4828 * The exception is when LOGO is done while another PLOGI with
4829 * the same nport handle is waiting as might be the case here.
4830 * Note: there is always a possibily of a race where session
4831 * deletion has already started for other reasons (e.g. ACL
4832 * removal) and now PLOGI arrives:
4833 * 1. if PLOGI arrived in FW after nport handle has been freed,
4834 * FW must have assigned this PLOGI a new/same handle and we
4835 * can proceed ACK'ing it as usual when session deletion
4837 * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
4838 * bit reached it, the handle has now been released. We'll
4839 * get an error when we ACK this PLOGI. Nothing will be sent
4840 * back to initiator. Initiator should eventually retry
4841 * PLOGI and situation will correct itself.
4843 sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
4844 (sess->d_id.b24 == port_id.b24));
4846 ql_dbg(ql_dbg_disc, vha, 0x20f9,
4847 "%s %d %8phC post del sess\n",
4848 __func__, __LINE__, sess->port_name);
4851 qlt_schedule_sess_for_deletion(sess);
4859 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
4861 static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
4862 struct imm_ntfy_from_isp *iocb)
4864 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
4865 struct qla_hw_data *ha = vha->hw;
4866 struct fc_port *sess = NULL, *conflict_sess = NULL;
4872 unsigned long flags;
4874 lockdep_assert_held(&ha->hardware_lock);
4876 wwn = wwn_to_u64(iocb->u.isp24.port_name);
4878 port_id.b.domain = iocb->u.isp24.port_id[2];
4879 port_id.b.area = iocb->u.isp24.port_id[1];
4880 port_id.b.al_pa = iocb->u.isp24.port_id[0];
4881 port_id.b.rsvd_1 = 0;
4883 loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
4885 ql_dbg(ql_dbg_disc, vha, 0xf026,
4886 "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n",
4887 vha->vp_idx, iocb->u.isp24.port_id[2],
4888 iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
4889 iocb->u.isp24.status_subcode, loop_id,
4890 iocb->u.isp24.port_name);
4892 /* res = 1 means ack at the end of thread
4893 * res = 0 means ack async/later.
4895 switch (iocb->u.isp24.status_subcode) {
4897 res = qlt_handle_login(vha, iocb);
4902 sess = qla2x00_find_fcport_by_wwpn(vha,
4903 iocb->u.isp24.port_name, 1);
4905 if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) {
4906 ql_dbg(ql_dbg_disc, vha, 0xffff,
4907 "%s %d %8phC Term PRLI due to PLOGI ACK not completed\n",
4909 iocb->u.isp24.port_name);
4910 qlt_send_term_imm_notif(vha, iocb, 1);
4914 res = qlt_handle_login(vha, iocb);
4918 if (IS_SW_RESV_ADDR(port_id)) {
4923 wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
4926 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
4927 sess = qlt_find_sess_invalidate_other(vha, wwn, port_id,
4928 loop_id, &conflict_sess);
4929 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
4932 if (conflict_sess) {
4933 switch (conflict_sess->disc_state) {
4935 case DSC_DELETE_PEND:
4938 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
4939 "PRLI with conflicting sess %p port %8phC\n",
4940 conflict_sess, conflict_sess->port_name);
4941 conflict_sess->fw_login_state =
4942 DSC_LS_PORT_UNAVAIL;
4943 qlt_send_term_imm_notif(vha, iocb, 1);
4950 bool delete = false;
4953 spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
4954 switch (sess->fw_login_state) {
4955 case DSC_LS_PLOGI_PEND:
4956 case DSC_LS_PLOGI_COMP:
4957 case DSC_LS_PRLI_COMP:
4964 switch (sess->disc_state) {
4965 case DSC_UPD_FCPORT:
4966 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
4969 sec = jiffies_to_msecs(jiffies -
4970 sess->jiffies_at_registration)/1000;
4971 if (sess->sec_since_registration < sec && sec &&
4973 sess->sec_since_registration = sec;
4974 ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
4975 "%s %8phC : Slow Rport registration(%d Sec)\n",
4976 __func__, sess->port_name, sec);
4978 qlt_send_term_imm_notif(vha, iocb, 1);
4981 case DSC_LOGIN_PEND:
4983 case DSC_LOGIN_COMPLETE:
4992 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
4995 * Impatient initiator sent PRLI before last
4996 * PLOGI could finish. Will force him to re-try,
4997 * while last one finishes.
4999 ql_log(ql_log_warn, sess->vha, 0xf095,
5000 "sess %p PRLI received, before plogi ack.\n",
5002 qlt_send_term_imm_notif(vha, iocb, 1);
5008 * This shouldn't happen under normal circumstances,
5009 * since we have deleted the old session during PLOGI
5011 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096,
5012 "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n",
5013 sess->loop_id, sess, iocb->u.isp24.nport_handle);
5016 sess->loop_id = loop_id;
5017 sess->d_id = port_id;
5018 sess->fw_login_state = DSC_LS_PRLI_PEND;
5021 sess->conf_compl_supported = 1;
5023 if ((wd3_lo & BIT_4) == 0)
5024 sess->port_type = FCT_INITIATOR;
5026 sess->port_type = FCT_TARGET;
5028 spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
5030 res = 1; /* send notify ack */
5032 /* Make session global (not used in fabric mode) */
5033 if (ha->current_topology != ISP_CFG_F) {
5035 ql_dbg(ql_dbg_disc, vha, 0x20fa,
5036 "%s %d %8phC post nack\n",
5037 __func__, __LINE__, sess->port_name);
5038 qla24xx_post_nack_work(vha, sess, iocb,
5042 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5043 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5044 qla2xxx_wake_dpc(vha);
5048 ql_dbg(ql_dbg_disc, vha, 0x20fb,
5049 "%s %d %8phC post nack\n",
5050 __func__, __LINE__, sess->port_name);
5051 qla24xx_post_nack_work(vha, sess, iocb,
5059 if (le16_to_cpu(iocb->u.isp24.flags) &
5060 NOTIFY24XX_FLAGS_GLOBAL_TPRLO) {
5062 qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS);
5069 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5070 sess = qla2x00_find_fcport_by_loopid(vha, loop_id);
5071 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5075 sess->fw_login_state = DSC_LS_LOGO_PEND;
5076 sess->logo_ack_needed = 1;
5077 memcpy(sess->iocb, iocb, IOCB_SIZE);
5080 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5082 ql_dbg(ql_dbg_disc, vha, 0x20fc,
5083 "%s: logo %llx res %d sess %p ",
5084 __func__, wwn, res, sess);
5087 * cmd went upper layer, look for qlt_xmit_tm_rsp()
5088 * for LOGO_ACK & sess delete
5093 /* cmd did not go to upper layer. */
5095 qlt_schedule_sess_for_deletion(sess);
5098 /* else logo will be ack */
5104 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5106 if (tgt->link_reinit_iocb_pending) {
5107 qlt_send_notify_ack(ha->base_qpair,
5108 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5109 tgt->link_reinit_iocb_pending = 0;
5112 sess = qla2x00_find_fcport_by_wwpn(vha,
5113 iocb->u.isp24.port_name, 1);
5115 ql_dbg(ql_dbg_disc, vha, 0x20fd,
5116 "sess %p lid %d|%d DS %d LS %d\n",
5117 sess, sess->loop_id, loop_id,
5118 sess->disc_state, sess->fw_login_state);
5121 res = 1; /* send notify ack */
5125 case ELS_FLOGI: /* should never happen */
5127 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061,
5128 "qla_target(%d): Unsupported ELS command %x "
5129 "received\n", vha->vp_idx, iocb->u.isp24.status_subcode);
5130 res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
5134 ql_dbg(ql_dbg_disc, vha, 0xf026,
5135 "qla_target(%d): Exit ELS opcode: 0x%02x res %d\n",
5136 vha->vp_idx, iocb->u.isp24.status_subcode, res);
5142 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5144 static void qlt_handle_imm_notify(struct scsi_qla_host *vha,
5145 struct imm_ntfy_from_isp *iocb)
5147 struct qla_hw_data *ha = vha->hw;
5148 uint32_t add_flags = 0;
5149 int send_notify_ack = 1;
5152 lockdep_assert_held(&ha->hardware_lock);
5154 status = le16_to_cpu(iocb->u.isp2x.status);
5156 case IMM_NTFY_LIP_RESET:
5158 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032,
5159 "qla_target(%d): LIP reset (loop %#x), subcode %x\n",
5160 vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle),
5161 iocb->u.isp24.status_subcode);
5163 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5164 send_notify_ack = 0;
5168 case IMM_NTFY_LIP_LINK_REINIT:
5170 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5172 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033,
5173 "qla_target(%d): LINK REINIT (loop %#x, "
5174 "subcode %x)\n", vha->vp_idx,
5175 le16_to_cpu(iocb->u.isp24.nport_handle),
5176 iocb->u.isp24.status_subcode);
5177 if (tgt->link_reinit_iocb_pending) {
5178 qlt_send_notify_ack(ha->base_qpair,
5179 &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
5181 memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb));
5182 tgt->link_reinit_iocb_pending = 1;
5184 * QLogic requires to wait after LINK REINIT for possible
5185 * PDISC or ADISC ELS commands
5187 send_notify_ack = 0;
5191 case IMM_NTFY_PORT_LOGOUT:
5192 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034,
5193 "qla_target(%d): Port logout (loop "
5194 "%#x, subcode %x)\n", vha->vp_idx,
5195 le16_to_cpu(iocb->u.isp24.nport_handle),
5196 iocb->u.isp24.status_subcode);
5198 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0)
5199 send_notify_ack = 0;
5200 /* The sessions will be cleared in the callback, if needed */
5203 case IMM_NTFY_GLBL_TPRLO:
5204 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035,
5205 "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status);
5206 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5207 send_notify_ack = 0;
5208 /* The sessions will be cleared in the callback, if needed */
5211 case IMM_NTFY_PORT_CONFIG:
5212 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036,
5213 "qla_target(%d): Port config changed (%x)\n", vha->vp_idx,
5215 if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
5216 send_notify_ack = 0;
5217 /* The sessions will be cleared in the callback, if needed */
5220 case IMM_NTFY_GLBL_LOGO:
5221 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
5222 "qla_target(%d): Link failure detected\n",
5224 /* I_T nexus loss */
5225 if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
5226 send_notify_ack = 0;
5229 case IMM_NTFY_IOCB_OVERFLOW:
5230 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b,
5231 "qla_target(%d): Cannot provide requested "
5232 "capability (IOCB overflowed the immediate notify "
5233 "resource count)\n", vha->vp_idx);
5236 case IMM_NTFY_ABORT_TASK:
5237 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037,
5238 "qla_target(%d): Abort Task (S %08x I %#x -> "
5239 "L %#x)\n", vha->vp_idx,
5240 le16_to_cpu(iocb->u.isp2x.seq_id),
5241 GET_TARGET_ID(ha, (struct atio_from_isp *)iocb),
5242 le16_to_cpu(iocb->u.isp2x.lun));
5243 if (qlt_abort_task(vha, iocb) == 0)
5244 send_notify_ack = 0;
5247 case IMM_NTFY_RESOURCE:
5248 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c,
5249 "qla_target(%d): Out of resources, host %ld\n",
5250 vha->vp_idx, vha->host_no);
5253 case IMM_NTFY_MSG_RX:
5254 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038,
5255 "qla_target(%d): Immediate notify task %x\n",
5256 vha->vp_idx, iocb->u.isp2x.task_flags);
5260 if (qlt_24xx_handle_els(vha, iocb) == 0)
5261 send_notify_ack = 0;
5264 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d,
5265 "qla_target(%d): Received unknown immediate "
5266 "notify status %x\n", vha->vp_idx, status);
5270 if (send_notify_ack)
5271 qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0,
5276 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5277 * This function sends busy to ISP 2xxx or 24xx.
5279 static int __qlt_send_busy(struct qla_qpair *qpair,
5280 struct atio_from_isp *atio, uint16_t status)
5282 struct scsi_qla_host *vha = qpair->vha;
5283 struct ctio7_to_24xx *ctio24;
5284 struct qla_hw_data *ha = vha->hw;
5286 struct fc_port *sess = NULL;
5287 unsigned long flags;
5291 id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
5293 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5294 sess = qla2x00_find_fcport_by_nportid(vha, &id, 1);
5295 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
5297 qlt_send_term_exchange(qpair, NULL, atio, 1, 0);
5300 /* Sending marker isn't necessary, since we called from ISR */
5302 pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
5304 ql_dbg(ql_dbg_io, vha, 0x3063,
5305 "qla_target(%d): %s failed: unable to allocate "
5306 "request packet", vha->vp_idx, __func__);
5310 qpair->tgt_counters.num_q_full_sent++;
5311 pkt->entry_count = 1;
5312 pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
5314 ctio24 = (struct ctio7_to_24xx *)pkt;
5315 ctio24->entry_type = CTIO_TYPE7;
5316 ctio24->nport_handle = cpu_to_le16(sess->loop_id);
5317 ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
5318 ctio24->vp_index = vha->vp_idx;
5319 ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
5320 ctio24->exchange_addr = atio->u.isp24.exchange_addr;
5321 temp = (atio->u.isp24.attr << 9) |
5322 CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
5323 CTIO7_FLAGS_DONT_RET_CTIO;
5324 ctio24->u.status1.flags = cpu_to_le16(temp);
5326 * CTIO from fw w/o se_cmd doesn't provide enough info to retry it,
5327 * if the explicit conformation is used.
5329 ctio24->u.status1.ox_id =
5330 cpu_to_le16(be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
5331 ctio24->u.status1.scsi_status = cpu_to_le16(status);
5333 ctio24->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
5335 if (ctio24->u.status1.residual != 0)
5336 ctio24->u.status1.scsi_status |= cpu_to_le16(SS_RESIDUAL_UNDER);
5338 /* Memory Barrier */
5340 if (qpair->reqq_start_iocbs)
5341 qpair->reqq_start_iocbs(qpair);
5343 qla2x00_start_iocbs(vha, qpair->req);
5348 * This routine is used to allocate a command for either a QFull condition
5349 * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go
5353 qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
5354 struct atio_from_isp *atio, uint16_t status, int qfull)
5356 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5357 struct qla_hw_data *ha = vha->hw;
5358 struct fc_port *sess;
5359 struct qla_tgt_cmd *cmd;
5360 unsigned long flags;
5362 if (unlikely(tgt->tgt_stop)) {
5363 ql_dbg(ql_dbg_io, vha, 0x300a,
5364 "New command while device %p is shutting down\n", tgt);
5368 if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) {
5369 vha->hw->tgt.num_qfull_cmds_dropped++;
5370 if (vha->hw->tgt.num_qfull_cmds_dropped >
5371 vha->qla_stats.stat_max_qfull_cmds_dropped)
5372 vha->qla_stats.stat_max_qfull_cmds_dropped =
5373 vha->hw->tgt.num_qfull_cmds_dropped;
5375 ql_dbg(ql_dbg_io, vha, 0x3068,
5376 "qla_target(%d): %s: QFull CMD dropped[%d]\n",
5377 vha->vp_idx, __func__,
5378 vha->hw->tgt.num_qfull_cmds_dropped);
5380 qlt_chk_exch_leak_thresh_hold(vha);
5384 sess = ha->tgt.tgt_ops->find_sess_by_s_id
5385 (vha, atio->u.isp24.fcp_hdr.s_id);
5389 cmd = ha->tgt.tgt_ops->get_cmd(sess);
5391 ql_dbg(ql_dbg_io, vha, 0x3009,
5392 "qla_target(%d): %s: Allocation of cmd failed\n",
5393 vha->vp_idx, __func__);
5395 vha->hw->tgt.num_qfull_cmds_dropped++;
5396 if (vha->hw->tgt.num_qfull_cmds_dropped >
5397 vha->qla_stats.stat_max_qfull_cmds_dropped)
5398 vha->qla_stats.stat_max_qfull_cmds_dropped =
5399 vha->hw->tgt.num_qfull_cmds_dropped;
5401 qlt_chk_exch_leak_thresh_hold(vha);
5405 qlt_incr_num_pend_cmds(vha);
5406 INIT_LIST_HEAD(&cmd->cmd_list);
5407 memcpy(&cmd->atio, atio, sizeof(*atio));
5409 cmd->tgt = vha->vha_tgt.qla_tgt;
5411 cmd->reset_count = ha->base_qpair->chip_reset;
5413 cmd->qpair = ha->base_qpair;
5417 /* NOTE: borrowing the state field to carry the status */
5418 cmd->state = status;
5420 cmd->term_exchg = 1;
5422 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5423 list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list);
5425 vha->hw->tgt.num_qfull_cmds_alloc++;
5426 if (vha->hw->tgt.num_qfull_cmds_alloc >
5427 vha->qla_stats.stat_max_qfull_cmds_alloc)
5428 vha->qla_stats.stat_max_qfull_cmds_alloc =
5429 vha->hw->tgt.num_qfull_cmds_alloc;
5430 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5434 qlt_free_qfull_cmds(struct qla_qpair *qpair)
5436 struct scsi_qla_host *vha = qpair->vha;
5437 struct qla_hw_data *ha = vha->hw;
5438 unsigned long flags;
5439 struct qla_tgt_cmd *cmd, *tcmd;
5440 struct list_head free_list, q_full_list;
5443 if (list_empty(&ha->tgt.q_full_list))
5446 INIT_LIST_HEAD(&free_list);
5447 INIT_LIST_HEAD(&q_full_list);
5449 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5450 if (list_empty(&ha->tgt.q_full_list)) {
5451 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5455 list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list);
5456 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5458 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
5459 list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) {
5461 /* cmd->state is a borrowed field to hold status */
5462 rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state);
5463 else if (cmd->term_exchg)
5464 rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio);
5470 ql_dbg(ql_dbg_io, vha, 0x3006,
5471 "%s: busy sent for ox_id[%04x]\n", __func__,
5472 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5473 else if (cmd->term_exchg)
5474 ql_dbg(ql_dbg_io, vha, 0x3007,
5475 "%s: Term exchg sent for ox_id[%04x]\n", __func__,
5476 be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
5478 ql_dbg(ql_dbg_io, vha, 0x3008,
5479 "%s: Unexpected cmd in QFull list %p\n", __func__,
5482 list_del(&cmd->cmd_list);
5483 list_add_tail(&cmd->cmd_list, &free_list);
5485 /* piggy back on hardware_lock for protection */
5486 vha->hw->tgt.num_qfull_cmds_alloc--;
5488 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
5492 list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
5493 list_del(&cmd->cmd_list);
5494 /* This cmd was never sent to TCM. There is no need
5495 * to schedule free or call free_cmd
5500 if (!list_empty(&q_full_list)) {
5501 spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
5502 list_splice(&q_full_list, &vha->hw->tgt.q_full_list);
5503 spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
5510 qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio,
5514 struct scsi_qla_host *vha = qpair->vha;
5516 rc = __qlt_send_busy(qpair, atio, status);
5518 qlt_alloc_qfull_cmd(vha, atio, status, 1);
5522 qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
5523 struct atio_from_isp *atio, uint8_t ha_locked)
5525 struct qla_hw_data *ha = vha->hw;
5526 unsigned long flags;
5528 if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
5532 spin_lock_irqsave(&ha->hardware_lock, flags);
5533 qlt_send_busy(qpair, atio, qla_sam_status);
5535 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5540 /* ha->hardware_lock supposed to be held on entry */
5541 /* called via callback from qla2xxx */
5542 static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
5543 struct atio_from_isp *atio, uint8_t ha_locked)
5545 struct qla_hw_data *ha = vha->hw;
5546 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5548 unsigned long flags = 0;
5550 if (unlikely(tgt == NULL)) {
5551 ql_dbg(ql_dbg_tgt, vha, 0x3064,
5552 "ATIO pkt, but no tgt (ha %p)", ha);
5556 * In tgt_stop mode we also should allow all requests to pass.
5557 * Otherwise, some commands can stuck.
5560 tgt->atio_irq_cmd_count++;
5562 switch (atio->u.raw.entry_type) {
5564 if (unlikely(atio->u.isp24.exchange_addr ==
5565 cpu_to_le32(ATIO_EXCHANGE_ADDRESS_UNKNOWN))) {
5566 ql_dbg(ql_dbg_io, vha, 0x3065,
5567 "qla_target(%d): ATIO_TYPE7 "
5568 "received with UNKNOWN exchange address, "
5569 "sending QUEUE_FULL\n", vha->vp_idx);
5571 spin_lock_irqsave(&ha->hardware_lock, flags);
5572 qlt_send_busy(ha->base_qpair, atio, qla_sam_status);
5574 spin_unlock_irqrestore(&ha->hardware_lock,
5579 if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) {
5580 rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair,
5583 tgt->atio_irq_cmd_count--;
5586 rc = qlt_handle_cmd_for_atio(vha, atio);
5588 rc = qlt_handle_task_mgmt(vha, atio);
5590 if (unlikely(rc != 0)) {
5592 spin_lock_irqsave(&ha->hardware_lock, flags);
5595 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5596 "qla_target: Unable to send command to target\n");
5599 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5600 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5601 qlt_send_term_exchange(ha->base_qpair, NULL,
5605 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5606 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5608 qlt_send_busy(ha->base_qpair, atio,
5612 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5613 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5615 qlt_send_busy(ha->base_qpair, atio,
5620 spin_unlock_irqrestore(&ha->hardware_lock,
5625 case IMMED_NOTIFY_TYPE:
5627 if (unlikely(atio->u.isp2x.entry_status != 0)) {
5628 ql_dbg(ql_dbg_tgt, vha, 0xe05b,
5629 "qla_target(%d): Received ATIO packet %x "
5630 "with error status %x\n", vha->vp_idx,
5631 atio->u.raw.entry_type,
5632 atio->u.isp2x.entry_status);
5635 ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
5638 spin_lock_irqsave(&ha->hardware_lock, flags);
5639 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio);
5641 spin_unlock_irqrestore(&ha->hardware_lock, flags);
5646 ql_dbg(ql_dbg_tgt, vha, 0xe05c,
5647 "qla_target(%d): Received unknown ATIO atio "
5648 "type %x\n", vha->vp_idx, atio->u.raw.entry_type);
5652 tgt->atio_irq_cmd_count--;
5656 * qpair lock is assume to be held
5657 * rc = 0 : send terminate & abts respond
5658 * rc != 0: do not send term & abts respond
5660 static int qlt_chk_unresolv_exchg(struct scsi_qla_host *vha,
5661 struct qla_qpair *qpair, struct abts_resp_from_24xx_fw *entry)
5663 struct qla_hw_data *ha = vha->hw;
5667 * Detect unresolved exchange. If the same ABTS is unable
5668 * to terminate an existing command and the same ABTS loops
5669 * between FW & Driver, then force FW dump. Under 1 jiff,
5670 * we should see multiple loops.
5672 if (qpair->retry_term_exchg_addr == entry->exchange_addr_to_abort &&
5673 qpair->retry_term_jiff == jiffies) {
5674 /* found existing exchange */
5675 qpair->retry_term_cnt++;
5676 if (qpair->retry_term_cnt >= 5) {
5678 qpair->retry_term_cnt = 0;
5679 ql_log(ql_log_warn, vha, 0xffff,
5680 "Unable to send ABTS Respond. Dumping firmware.\n");
5681 ql_dump_buffer(ql_dbg_tgt_mgt + ql_dbg_buffer,
5682 vha, 0xffff, (uint8_t *)entry, sizeof(*entry));
5684 if (qpair == ha->base_qpair)
5685 ha->isp_ops->fw_dump(vha);
5687 qla2xxx_dump_fw(vha);
5689 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
5690 qla2xxx_wake_dpc(vha);
5692 } else if (qpair->retry_term_jiff != jiffies) {
5693 qpair->retry_term_exchg_addr = entry->exchange_addr_to_abort;
5694 qpair->retry_term_cnt = 0;
5695 qpair->retry_term_jiff = jiffies;
5702 static void qlt_handle_abts_completion(struct scsi_qla_host *vha,
5703 struct rsp_que *rsp, response_t *pkt)
5705 struct abts_resp_from_24xx_fw *entry =
5706 (struct abts_resp_from_24xx_fw *)pkt;
5707 u32 h = pkt->handle & ~QLA_TGT_HANDLE_MASK;
5708 struct qla_tgt_mgmt_cmd *mcmd;
5709 struct qla_hw_data *ha = vha->hw;
5711 mcmd = qlt_ctio_to_cmd(vha, rsp, pkt->handle, pkt);
5712 if (mcmd == NULL && h != QLA_TGT_SKIP_HANDLE) {
5713 ql_dbg(ql_dbg_async, vha, 0xe064,
5714 "qla_target(%d): ABTS Comp without mcmd\n",
5721 vha->vha_tgt.qla_tgt->abts_resp_expected--;
5723 ql_dbg(ql_dbg_tgt, vha, 0xe038,
5724 "ABTS_RESP_24XX: compl_status %x\n",
5725 entry->compl_status);
5727 if (le16_to_cpu(entry->compl_status) != ABTS_RESP_COMPL_SUCCESS) {
5728 if (le32_to_cpu(entry->error_subcode1) == 0x1E &&
5729 le32_to_cpu(entry->error_subcode2) == 0) {
5730 if (qlt_chk_unresolv_exchg(vha, rsp->qpair, entry)) {
5731 ha->tgt.tgt_ops->free_mcmd(mcmd);
5734 qlt_24xx_retry_term_exchange(vha, rsp->qpair,
5737 ql_dbg(ql_dbg_tgt, vha, 0xe063,
5738 "qla_target(%d): ABTS_RESP_24XX failed %x (subcode %x:%x)",
5739 vha->vp_idx, entry->compl_status,
5740 entry->error_subcode1,
5741 entry->error_subcode2);
5742 ha->tgt.tgt_ops->free_mcmd(mcmd);
5745 ha->tgt.tgt_ops->free_mcmd(mcmd);
5749 /* ha->hardware_lock supposed to be held on entry */
5750 /* called via callback from qla2xxx */
5751 static void qlt_response_pkt(struct scsi_qla_host *vha,
5752 struct rsp_que *rsp, response_t *pkt)
5754 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5756 if (unlikely(tgt == NULL)) {
5757 ql_dbg(ql_dbg_tgt, vha, 0xe05d,
5758 "qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
5759 vha->vp_idx, pkt->entry_type, vha->hw);
5764 * In tgt_stop mode we also should allow all requests to pass.
5765 * Otherwise, some commands can stuck.
5768 switch (pkt->entry_type) {
5772 struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
5774 qlt_do_ctio_completion(vha, rsp, entry->handle,
5775 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5780 case ACCEPT_TGT_IO_TYPE:
5782 struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
5785 if (atio->u.isp2x.status !=
5786 cpu_to_le16(ATIO_CDB_VALID)) {
5787 ql_dbg(ql_dbg_tgt, vha, 0xe05e,
5788 "qla_target(%d): ATIO with error "
5789 "status %x received\n", vha->vp_idx,
5790 le16_to_cpu(atio->u.isp2x.status));
5794 rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1);
5798 rc = qlt_handle_cmd_for_atio(vha, atio);
5799 if (unlikely(rc != 0)) {
5802 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5803 "qla_target: Unable to send command to target\n");
5806 ql_dbg(ql_dbg_tgt, vha, 0xe05f,
5807 "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
5808 qlt_send_term_exchange(rsp->qpair, NULL,
5812 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5813 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5815 qlt_send_busy(rsp->qpair, atio,
5819 ql_dbg(ql_dbg_tgt, vha, 0xe060,
5820 "qla_target(%d): Unable to send command to target, sending BUSY status\n",
5822 qlt_send_busy(rsp->qpair, atio,
5830 case CONTINUE_TGT_IO_TYPE:
5832 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5834 qlt_do_ctio_completion(vha, rsp, entry->handle,
5835 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5842 struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
5844 qlt_do_ctio_completion(vha, rsp, entry->handle,
5845 le16_to_cpu(entry->status)|(pkt->entry_status << 16),
5850 case IMMED_NOTIFY_TYPE:
5851 ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n");
5852 qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt);
5855 case NOTIFY_ACK_TYPE:
5856 if (tgt->notify_ack_expected > 0) {
5857 struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
5859 ql_dbg(ql_dbg_tgt, vha, 0xe036,
5860 "NOTIFY_ACK seq %08x status %x\n",
5861 le16_to_cpu(entry->u.isp2x.seq_id),
5862 le16_to_cpu(entry->u.isp2x.status));
5863 tgt->notify_ack_expected--;
5864 if (entry->u.isp2x.status !=
5865 cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
5866 ql_dbg(ql_dbg_tgt, vha, 0xe061,
5867 "qla_target(%d): NOTIFY_ACK "
5868 "failed %x\n", vha->vp_idx,
5869 le16_to_cpu(entry->u.isp2x.status));
5872 ql_dbg(ql_dbg_tgt, vha, 0xe062,
5873 "qla_target(%d): Unexpected NOTIFY_ACK received\n",
5878 case ABTS_RECV_24XX:
5879 ql_dbg(ql_dbg_tgt, vha, 0xe037,
5880 "ABTS_RECV_24XX: instance %d\n", vha->vp_idx);
5881 qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt);
5884 case ABTS_RESP_24XX:
5885 if (tgt->abts_resp_expected > 0) {
5886 qlt_handle_abts_completion(vha, rsp, pkt);
5888 ql_dbg(ql_dbg_tgt, vha, 0xe064,
5889 "qla_target(%d): Unexpected ABTS_RESP_24XX "
5890 "received\n", vha->vp_idx);
5895 ql_dbg(ql_dbg_tgt, vha, 0xe065,
5896 "qla_target(%d): Received unknown response pkt "
5897 "type %x\n", vha->vp_idx, pkt->entry_type);
5904 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5906 void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
5909 struct qla_hw_data *ha = vha->hw;
5910 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
5913 if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
5916 if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
5920 * In tgt_stop mode we also should allow all requests to pass.
5921 * Otherwise, some commands can stuck.
5926 case MBA_RESET: /* Reset */
5927 case MBA_SYSTEM_ERR: /* System Error */
5928 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
5929 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
5930 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a,
5931 "qla_target(%d): System error async event %#x "
5932 "occurred", vha->vp_idx, code);
5934 case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */
5935 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
5940 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b,
5941 "qla_target(%d): Async LOOP_UP occurred "
5942 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx,
5943 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
5944 if (tgt->link_reinit_iocb_pending) {
5945 qlt_send_notify_ack(ha->base_qpair,
5946 &tgt->link_reinit_iocb,
5948 tgt->link_reinit_iocb_pending = 0;
5953 case MBA_LIP_OCCURRED:
5956 case MBA_RSCN_UPDATE:
5957 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c,
5958 "qla_target(%d): Async event %#x occurred "
5959 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code,
5960 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
5963 case MBA_REJECTED_FCP_CMD:
5964 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017,
5965 "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)",
5967 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
5969 if (mailbox[3] == 1) {
5970 /* exchange starvation. */
5971 vha->hw->exch_starvation++;
5972 if (vha->hw->exch_starvation > 5) {
5973 ql_log(ql_log_warn, vha, 0xd03a,
5974 "Exchange starvation-. Resetting RISC\n");
5976 vha->hw->exch_starvation = 0;
5977 if (IS_P3P_TYPE(vha->hw))
5978 set_bit(FCOE_CTX_RESET_NEEDED,
5981 set_bit(ISP_ABORT_NEEDED,
5983 qla2xxx_wake_dpc(vha);
5988 case MBA_PORT_UPDATE:
5989 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d,
5990 "qla_target(%d): Port update async event %#x "
5991 "occurred: updating the ports database (m[0]=%x, m[1]=%x, "
5992 "m[2]=%x, m[3]=%x)", vha->vp_idx, code,
5993 mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
5995 login_code = mailbox[2];
5996 if (login_code == 0x4) {
5997 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e,
5998 "Async MB 2: Got PLOGI Complete\n");
5999 vha->hw->exch_starvation = 0;
6000 } else if (login_code == 0x7)
6001 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f,
6002 "Async MB 2: Port Logged Out\n");
6010 static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
6013 fc_port_t *fcport, *tfcp, *del;
6015 unsigned long flags;
6018 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6020 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
6021 "qla_target(%d): Allocation of tmp FC port failed",
6026 fcport->loop_id = loop_id;
6028 rc = qla24xx_gpdb_wait(vha, fcport, 0);
6029 if (rc != QLA_SUCCESS) {
6030 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070,
6031 "qla_target(%d): Failed to retrieve fcport "
6032 "information -- get_port_database() returned %x "
6033 "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
6039 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
6040 tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1);
6043 tfcp->d_id = fcport->d_id;
6044 tfcp->port_type = fcport->port_type;
6045 tfcp->supported_classes = fcport->supported_classes;
6046 tfcp->flags |= fcport->flags;
6047 tfcp->scan_state = QLA_FCPORT_FOUND;
6052 if (vha->hw->current_topology == ISP_CFG_F)
6053 fcport->flags |= FCF_FABRIC_DEVICE;
6055 list_add_tail(&fcport->list, &vha->vp_fcports);
6056 if (!IS_SW_RESV_ADDR(fcport->d_id))
6057 vha->fcport_count++;
6058 fcport->login_gen++;
6059 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
6060 fcport->login_succ = 1;
6064 fcport->deleted = 0;
6065 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6067 switch (vha->host->active_mode) {
6068 case MODE_INITIATOR:
6071 if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) {
6072 qla24xx_sched_upd_fcport(fcport);
6074 ql_dbg(ql_dbg_disc, vha, 0x20ff,
6075 "%s %d %8phC post gpsc fcp_cnt %d\n",
6076 __func__, __LINE__, fcport->port_name, vha->fcport_count);
6077 qla24xx_post_gpsc_work(vha, fcport);
6087 qla2x00_free_fcport(del);
6092 /* Must be called under tgt_mutex */
6093 static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha,
6096 struct fc_port *sess = NULL;
6097 fc_port_t *fcport = NULL;
6098 int rc, global_resets;
6099 uint16_t loop_id = 0;
6101 if (s_id.domain == 0xFF && s_id.area == 0xFC) {
6103 * This is Domain Controller, so it should be
6104 * OK to drop SCSI commands from it.
6106 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042,
6107 "Unable to find initiator with S_ID %x:%x:%x",
6108 s_id.domain, s_id.area, s_id.al_pa);
6112 mutex_lock(&vha->vha_tgt.tgt_mutex);
6116 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
6118 rc = qla24xx_get_loop_id(vha, s_id, &loop_id);
6120 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6122 ql_log(ql_log_info, vha, 0xf071,
6123 "qla_target(%d): Unable to find "
6124 "initiator with S_ID %x:%x:%x",
6125 vha->vp_idx, s_id.domain, s_id.area, s_id.al_pa);
6127 if (rc == -ENOENT) {
6128 qlt_port_logo_t logo;
6130 logo.id = be_to_port_id(s_id);
6132 qlt_send_first_logo(vha, &logo);
6138 fcport = qlt_get_port_database(vha, loop_id);
6140 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6144 if (global_resets !=
6145 atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) {
6146 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043,
6147 "qla_target(%d): global reset during session discovery "
6148 "(counter was %d, new %d), retrying", vha->vp_idx,
6150 atomic_read(&vha->vha_tgt.
6151 qla_tgt->tgt_global_resets_count));
6155 sess = qlt_create_sess(vha, fcport, true);
6157 mutex_unlock(&vha->vha_tgt.tgt_mutex);
6162 static void qlt_abort_work(struct qla_tgt *tgt,
6163 struct qla_tgt_sess_work_param *prm)
6165 struct scsi_qla_host *vha = tgt->vha;
6166 struct qla_hw_data *ha = vha->hw;
6167 struct fc_port *sess = NULL;
6168 unsigned long flags = 0, flags2 = 0;
6172 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6177 s_id = le_id_to_be(prm->abts.fcp_hdr_le.s_id);
6179 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6181 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6183 sess = qlt_make_local_sess(vha, s_id);
6184 /* sess has got an extra creation ref */
6186 spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
6190 if (sess->deleted) {
6195 if (!kref_get_unless_zero(&sess->sess_kref)) {
6196 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c,
6197 "%s: kref_get fail %8phC \n",
6198 __func__, sess->port_name);
6204 rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
6205 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6207 ha->tgt.tgt_ops->put_sess(sess);
6214 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
6217 spin_lock_irqsave(&ha->hardware_lock, flags);
6218 qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts,
6219 FCP_TMF_REJECTED, false);
6220 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6223 static void qlt_tmr_work(struct qla_tgt *tgt,
6224 struct qla_tgt_sess_work_param *prm)
6226 struct atio_from_isp *a = &prm->tm_iocb2;
6227 struct scsi_qla_host *vha = tgt->vha;
6228 struct qla_hw_data *ha = vha->hw;
6229 struct fc_port *sess;
6230 unsigned long flags;
6237 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6242 s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id;
6243 sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
6245 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6247 sess = qlt_make_local_sess(vha, s_id);
6248 /* sess has got an extra creation ref */
6250 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
6254 if (sess->deleted) {
6258 if (!kref_get_unless_zero(&sess->sess_kref)) {
6259 ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020,
6260 "%s: kref_get fail %8phC\n",
6261 __func__, sess->port_name);
6267 fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
6269 scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
6271 rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
6272 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6274 ha->tgt.tgt_ops->put_sess(sess);
6281 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
6283 qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0);
6286 static void qlt_sess_work_fn(struct work_struct *work)
6288 struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
6289 struct scsi_qla_host *vha = tgt->vha;
6290 unsigned long flags;
6292 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt);
6294 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6295 while (!list_empty(&tgt->sess_works_list)) {
6296 struct qla_tgt_sess_work_param *prm = list_entry(
6297 tgt->sess_works_list.next, typeof(*prm),
6298 sess_works_list_entry);
6301 * This work can be scheduled on several CPUs at time, so we
6302 * must delete the entry to eliminate double processing
6304 list_del(&prm->sess_works_list_entry);
6306 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6308 switch (prm->type) {
6309 case QLA_TGT_SESS_WORK_ABORT:
6310 qlt_abort_work(tgt, prm);
6312 case QLA_TGT_SESS_WORK_TM:
6313 qlt_tmr_work(tgt, prm);
6320 spin_lock_irqsave(&tgt->sess_work_lock, flags);
6324 spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
6327 /* Must be called under tgt_host_action_mutex */
6328 int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
6330 struct qla_tgt *tgt;
6332 struct qla_qpair_hint *h;
6334 if (!QLA_TGT_MODE_ENABLED())
6337 if (!IS_TGT_MODE_CAPABLE(ha)) {
6338 ql_log(ql_log_warn, base_vha, 0xe070,
6339 "This adapter does not support target mode.\n");
6343 ql_dbg(ql_dbg_tgt, base_vha, 0xe03b,
6344 "Registering target for host %ld(%p).\n", base_vha->host_no, ha);
6346 BUG_ON(base_vha->vha_tgt.qla_tgt != NULL);
6348 tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL);
6350 ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
6351 "Unable to allocate struct qla_tgt\n");
6355 tgt->qphints = kcalloc(ha->max_qpairs + 1,
6356 sizeof(struct qla_qpair_hint),
6358 if (!tgt->qphints) {
6360 ql_log(ql_log_warn, base_vha, 0x0197,
6361 "Unable to allocate qpair hints.\n");
6365 if (!(base_vha->host->hostt->supported_mode & MODE_TARGET))
6366 base_vha->host->hostt->supported_mode |= MODE_TARGET;
6368 rc = btree_init64(&tgt->lun_qpair_map);
6370 kfree(tgt->qphints);
6372 ql_log(ql_log_info, base_vha, 0x0198,
6373 "Unable to initialize lun_qpair_map btree\n");
6376 h = &tgt->qphints[0];
6377 h->qpair = ha->base_qpair;
6378 INIT_LIST_HEAD(&h->hint_elem);
6379 h->cpuid = ha->base_qpair->cpuid;
6380 list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list);
6382 for (i = 0; i < ha->max_qpairs; i++) {
6383 unsigned long flags;
6385 struct qla_qpair *qpair = ha->queue_pair_map[i];
6387 h = &tgt->qphints[i + 1];
6388 INIT_LIST_HEAD(&h->hint_elem);
6391 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
6392 list_add_tail(&h->hint_elem, &qpair->hints_list);
6393 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
6394 h->cpuid = qpair->cpuid;
6399 tgt->vha = base_vha;
6400 init_waitqueue_head(&tgt->waitQ);
6401 INIT_LIST_HEAD(&tgt->del_sess_list);
6402 spin_lock_init(&tgt->sess_work_lock);
6403 INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
6404 INIT_LIST_HEAD(&tgt->sess_works_list);
6405 atomic_set(&tgt->tgt_global_resets_count, 0);
6407 base_vha->vha_tgt.qla_tgt = tgt;
6409 ql_dbg(ql_dbg_tgt, base_vha, 0xe067,
6410 "qla_target(%d): using 64 Bit PCI addressing",
6413 tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3);
6415 mutex_lock(&qla_tgt_mutex);
6416 list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist);
6417 mutex_unlock(&qla_tgt_mutex);
6419 if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target)
6420 ha->tgt.tgt_ops->add_target(base_vha);
6425 /* Must be called under tgt_host_action_mutex */
6426 int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
6428 if (!vha->vha_tgt.qla_tgt)
6431 if (vha->fc_vport) {
6432 qlt_release(vha->vha_tgt.qla_tgt);
6436 /* free left over qfull cmds */
6437 qlt_init_term_exchange(vha);
6439 ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
6441 qlt_release(vha->vha_tgt.qla_tgt);
6446 void qlt_remove_target_resources(struct qla_hw_data *ha)
6448 struct scsi_qla_host *node;
6451 btree_for_each_safe32(&ha->tgt.host_map, key, node)
6452 btree_remove32(&ha->tgt.host_map, key);
6454 btree_destroy32(&ha->tgt.host_map);
6457 static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn,
6460 pr_debug("qla2xxx HW vha->node_name: %8phC\n", vha->node_name);
6461 pr_debug("qla2xxx HW vha->port_name: %8phC\n", vha->port_name);
6462 put_unaligned_be64(wwpn, b);
6463 pr_debug("qla2xxx passed configfs WWPN: %8phC\n", b);
6467 * qlt_lport_register - register lport with external module
6469 * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data
6470 * @phys_wwpn: physical port WWPN
6471 * @npiv_wwpn: NPIV WWPN
6472 * @npiv_wwnn: NPIV WWNN
6473 * @callback: lport initialization callback for tcm_qla2xxx code
6475 int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn,
6476 u64 npiv_wwpn, u64 npiv_wwnn,
6477 int (*callback)(struct scsi_qla_host *, void *, u64, u64))
6479 struct qla_tgt *tgt;
6480 struct scsi_qla_host *vha;
6481 struct qla_hw_data *ha;
6482 struct Scsi_Host *host;
6483 unsigned long flags;
6487 mutex_lock(&qla_tgt_mutex);
6488 list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) {
6496 if (!(host->hostt->supported_mode & MODE_TARGET))
6499 if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
6502 spin_lock_irqsave(&ha->hardware_lock, flags);
6503 if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) {
6504 pr_debug("MODE_TARGET already active on qla2xxx(%d)\n",
6506 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6509 if (tgt->tgt_stop) {
6510 pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n",
6512 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6515 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6517 if (!scsi_host_get(host)) {
6518 ql_dbg(ql_dbg_tgt, vha, 0xe068,
6519 "Unable to scsi_host_get() for"
6520 " qla2xxx scsi_host\n");
6523 qlt_lport_dump(vha, phys_wwpn, b);
6525 if (memcmp(vha->port_name, b, WWN_SIZE)) {
6526 scsi_host_put(host);
6529 rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn);
6531 scsi_host_put(host);
6533 mutex_unlock(&qla_tgt_mutex);
6536 mutex_unlock(&qla_tgt_mutex);
6540 EXPORT_SYMBOL(qlt_lport_register);
6543 * qlt_lport_deregister - Degister lport
6545 * @vha: Registered scsi_qla_host pointer
6547 void qlt_lport_deregister(struct scsi_qla_host *vha)
6549 struct qla_hw_data *ha = vha->hw;
6550 struct Scsi_Host *sh = vha->host;
6552 * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data
6554 vha->vha_tgt.target_lport_ptr = NULL;
6555 ha->tgt.tgt_ops = NULL;
6557 * Release the Scsi_Host reference for the underlying qla2xxx host
6561 EXPORT_SYMBOL(qlt_lport_deregister);
6563 /* Must be called under HW lock */
6564 void qlt_set_mode(struct scsi_qla_host *vha)
6566 switch (vha->qlini_mode) {
6567 case QLA2XXX_INI_MODE_DISABLED:
6568 case QLA2XXX_INI_MODE_EXCLUSIVE:
6569 vha->host->active_mode = MODE_TARGET;
6571 case QLA2XXX_INI_MODE_ENABLED:
6572 vha->host->active_mode = MODE_INITIATOR;
6574 case QLA2XXX_INI_MODE_DUAL:
6575 vha->host->active_mode = MODE_DUAL;
6582 /* Must be called under HW lock */
6583 static void qlt_clear_mode(struct scsi_qla_host *vha)
6585 switch (vha->qlini_mode) {
6586 case QLA2XXX_INI_MODE_DISABLED:
6587 vha->host->active_mode = MODE_UNKNOWN;
6589 case QLA2XXX_INI_MODE_EXCLUSIVE:
6590 vha->host->active_mode = MODE_INITIATOR;
6592 case QLA2XXX_INI_MODE_ENABLED:
6593 case QLA2XXX_INI_MODE_DUAL:
6594 vha->host->active_mode = MODE_INITIATOR;
6602 * qla_tgt_enable_vha - NO LOCK HELD
6604 * host_reset, bring up w/ Target Mode Enabled
6607 qlt_enable_vha(struct scsi_qla_host *vha)
6609 struct qla_hw_data *ha = vha->hw;
6610 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6611 unsigned long flags;
6612 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6615 ql_dbg(ql_dbg_tgt, vha, 0xe069,
6616 "Unable to locate qla_tgt pointer from"
6617 " struct qla_hw_data\n");
6621 if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
6624 if (ha->tgt.num_act_qpairs > ha->max_qpairs)
6625 ha->tgt.num_act_qpairs = ha->max_qpairs;
6626 spin_lock_irqsave(&ha->hardware_lock, flags);
6627 tgt->tgt_stopped = 0;
6629 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6631 mutex_lock(&ha->optrom_mutex);
6632 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021,
6635 qla24xx_disable_vp(vha);
6636 qla24xx_enable_vp(vha);
6638 set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
6639 qla2xxx_wake_dpc(base_vha);
6640 WARN_ON_ONCE(qla2x00_wait_for_hba_online(base_vha) !=
6643 mutex_unlock(&ha->optrom_mutex);
6645 EXPORT_SYMBOL(qlt_enable_vha);
6648 * qla_tgt_disable_vha - NO LOCK HELD
6650 * Disable Target Mode and reset the adapter
6652 static void qlt_disable_vha(struct scsi_qla_host *vha)
6654 struct qla_hw_data *ha = vha->hw;
6655 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
6656 unsigned long flags;
6659 ql_dbg(ql_dbg_tgt, vha, 0xe06a,
6660 "Unable to locate qla_tgt pointer from"
6661 " struct qla_hw_data\n");
6666 spin_lock_irqsave(&ha->hardware_lock, flags);
6667 qlt_clear_mode(vha);
6668 spin_unlock_irqrestore(&ha->hardware_lock, flags);
6670 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6671 qla2xxx_wake_dpc(vha);
6674 * We are expecting the offline state.
6675 * QLA_FUNCTION_FAILED means that adapter is offline.
6677 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
6678 ql_dbg(ql_dbg_tgt, vha, 0xe081,
6679 "adapter is offline\n");
6683 * Called from qla_init.c:qla24xx_vport_create() contex to setup
6684 * the target mode specific struct scsi_qla_host and struct qla_hw_data
6688 qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
6690 vha->vha_tgt.qla_tgt = NULL;
6692 mutex_init(&vha->vha_tgt.tgt_mutex);
6693 mutex_init(&vha->vha_tgt.tgt_host_action_mutex);
6695 qlt_clear_mode(vha);
6698 * NOTE: Currently the value is kept the same for <24xx and
6699 * >=24xx ISPs. If it is necessary to change it,
6700 * the check should be added for specific ISPs,
6701 * assigning the value appropriately.
6703 ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
6705 qlt_add_target(ha, vha);
6709 qlt_rff_id(struct scsi_qla_host *vha)
6713 * FC-4 Feature bit 0 indicates target functionality to the name server.
6715 if (qla_tgt_mode_enabled(vha)) {
6716 fc4_feature = BIT_0;
6717 } else if (qla_ini_mode_enabled(vha)) {
6718 fc4_feature = BIT_1;
6719 } else if (qla_dual_mode_enabled(vha))
6720 fc4_feature = BIT_0 | BIT_1;
6726 * qlt_init_atio_q_entries() - Initializes ATIO queue entries.
6729 * Beginning of ATIO ring has initialization control block already built
6730 * by nvram config routine.
6732 * Returns 0 on success.
6735 qlt_init_atio_q_entries(struct scsi_qla_host *vha)
6737 struct qla_hw_data *ha = vha->hw;
6739 struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring;
6741 if (qla_ini_mode_enabled(vha))
6744 for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) {
6745 pkt->u.raw.signature = cpu_to_le32(ATIO_PROCESSED);
6752 * qlt_24xx_process_atio_queue() - Process ATIO queue entries.
6753 * @ha: SCSI driver HA context
6756 qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked)
6758 struct qla_hw_data *ha = vha->hw;
6759 struct atio_from_isp *pkt;
6762 if (!ha->flags.fw_started)
6765 while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
6766 fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
6767 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6768 cnt = pkt->u.raw.entry_count;
6770 if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
6772 * This packet is corrupted. The header + payload
6773 * can not be trusted. There is no point in passing
6776 ql_log(ql_log_warn, vha, 0xd03c,
6777 "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
6778 &pkt->u.isp24.fcp_hdr.s_id,
6779 be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
6780 pkt->u.isp24.exchange_addr, pkt);
6782 adjust_corrupted_atio(pkt);
6783 qlt_send_term_exchange(ha->base_qpair, NULL, pkt,
6786 qlt_24xx_atio_pkt_all_vps(vha,
6787 (struct atio_from_isp *)pkt, ha_locked);
6790 for (i = 0; i < cnt; i++) {
6791 ha->tgt.atio_ring_index++;
6792 if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) {
6793 ha->tgt.atio_ring_index = 0;
6794 ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
6796 ha->tgt.atio_ring_ptr++;
6798 pkt->u.raw.signature = cpu_to_le32(ATIO_PROCESSED);
6799 pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
6804 /* Adjust ring index */
6805 wrt_reg_dword(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index);
6809 qlt_24xx_config_rings(struct scsi_qla_host *vha)
6811 struct qla_hw_data *ha = vha->hw;
6812 struct qla_msix_entry *msix = &ha->msix_entries[2];
6813 struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb;
6815 if (!QLA_TGT_MODE_ENABLED())
6818 wrt_reg_dword(ISP_ATIO_Q_IN(vha), 0);
6819 wrt_reg_dword(ISP_ATIO_Q_OUT(vha), 0);
6820 rd_reg_dword(ISP_ATIO_Q_OUT(vha));
6822 if (ha->flags.msix_enabled) {
6823 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
6824 if (IS_QLA2071(ha)) {
6825 /* 4 ports Baker: Enable Interrupt Handshake */
6827 icb->firmware_options_2 |= cpu_to_le32(BIT_26);
6829 icb->msix_atio = cpu_to_le16(msix->entry);
6830 icb->firmware_options_2 &= cpu_to_le32(~BIT_26);
6832 ql_dbg(ql_dbg_init, vha, 0xf072,
6833 "Registering ICB vector 0x%x for atio que.\n",
6838 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
6840 icb->firmware_options_2 |= cpu_to_le32(BIT_26);
6841 ql_dbg(ql_dbg_init, vha, 0xf072,
6842 "%s: Use INTx for ATIOQ.\n", __func__);
6848 qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
6850 struct qla_hw_data *ha = vha->hw;
6853 if (!QLA_TGT_MODE_ENABLED())
6856 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6857 if (!ha->tgt.saved_set) {
6858 /* We save only once */
6859 ha->tgt.saved_exchange_count = nv->exchange_count;
6860 ha->tgt.saved_firmware_options_1 =
6861 nv->firmware_options_1;
6862 ha->tgt.saved_firmware_options_2 =
6863 nv->firmware_options_2;
6864 ha->tgt.saved_firmware_options_3 =
6865 nv->firmware_options_3;
6866 ha->tgt.saved_set = 1;
6869 if (qla_tgt_mode_enabled(vha))
6870 nv->exchange_count = cpu_to_le16(0xFFFF);
6872 nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
6874 /* Enable target mode */
6875 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
6877 /* Disable ini mode, if requested */
6878 if (qla_tgt_mode_enabled(vha))
6879 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
6881 /* Disable Full Login after LIP */
6882 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6883 /* Enable initial LIP */
6884 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
6885 if (ql2xtgt_tape_enable)
6886 /* Enable FC Tape support */
6887 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
6889 /* Disable FC Tape support */
6890 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
6892 /* Disable Full Login after LIP */
6893 nv->host_p &= cpu_to_le32(~BIT_10);
6896 * clear BIT 15 explicitly as we have seen at least
6897 * a couple of instances where this was set and this
6898 * was causing the firmware to not be initialized.
6900 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
6901 /* Enable target PRLI control */
6902 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
6904 if (IS_QLA25XX(ha)) {
6905 /* Change Loop-prefer to Pt-Pt */
6906 tmp = ~(BIT_4|BIT_5|BIT_6);
6907 nv->firmware_options_2 &= cpu_to_le32(tmp);
6909 nv->firmware_options_2 |= cpu_to_le32(tmp);
6912 if (ha->tgt.saved_set) {
6913 nv->exchange_count = ha->tgt.saved_exchange_count;
6914 nv->firmware_options_1 =
6915 ha->tgt.saved_firmware_options_1;
6916 nv->firmware_options_2 =
6917 ha->tgt.saved_firmware_options_2;
6918 nv->firmware_options_3 =
6919 ha->tgt.saved_firmware_options_3;
6924 if (ha->base_qpair->enable_class_2) {
6925 if (vha->flags.init_done)
6926 fc_host_supported_classes(vha->host) =
6927 FC_COS_CLASS2 | FC_COS_CLASS3;
6929 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
6931 if (vha->flags.init_done)
6932 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
6934 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
6939 qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha,
6940 struct init_cb_24xx *icb)
6942 struct qla_hw_data *ha = vha->hw;
6944 if (!QLA_TGT_MODE_ENABLED())
6947 if (ha->tgt.node_name_set) {
6948 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
6949 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
6954 qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
6956 struct qla_hw_data *ha = vha->hw;
6959 if (!QLA_TGT_MODE_ENABLED())
6962 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6963 if (!ha->tgt.saved_set) {
6964 /* We save only once */
6965 ha->tgt.saved_exchange_count = nv->exchange_count;
6966 ha->tgt.saved_firmware_options_1 =
6967 nv->firmware_options_1;
6968 ha->tgt.saved_firmware_options_2 =
6969 nv->firmware_options_2;
6970 ha->tgt.saved_firmware_options_3 =
6971 nv->firmware_options_3;
6972 ha->tgt.saved_set = 1;
6975 if (qla_tgt_mode_enabled(vha))
6976 nv->exchange_count = cpu_to_le16(0xFFFF);
6978 nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
6980 /* Enable target mode */
6981 nv->firmware_options_1 |= cpu_to_le32(BIT_4);
6983 /* Disable ini mode, if requested */
6984 if (qla_tgt_mode_enabled(vha))
6985 nv->firmware_options_1 |= cpu_to_le32(BIT_5);
6986 /* Disable Full Login after LIP */
6987 nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6988 /* Enable initial LIP */
6989 nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
6991 * clear BIT 15 explicitly as we have seen at
6992 * least a couple of instances where this was set
6993 * and this was causing the firmware to not be
6996 nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
6997 if (ql2xtgt_tape_enable)
6998 /* Enable FC tape support */
6999 nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7001 /* Disable FC tape support */
7002 nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
7004 /* Disable Full Login after LIP */
7005 nv->host_p &= cpu_to_le32(~BIT_10);
7006 /* Enable target PRLI control */
7007 nv->firmware_options_2 |= cpu_to_le32(BIT_14);
7009 /* Change Loop-prefer to Pt-Pt */
7010 tmp = ~(BIT_4|BIT_5|BIT_6);
7011 nv->firmware_options_2 &= cpu_to_le32(tmp);
7013 nv->firmware_options_2 |= cpu_to_le32(tmp);
7015 if (ha->tgt.saved_set) {
7016 nv->exchange_count = ha->tgt.saved_exchange_count;
7017 nv->firmware_options_1 =
7018 ha->tgt.saved_firmware_options_1;
7019 nv->firmware_options_2 =
7020 ha->tgt.saved_firmware_options_2;
7021 nv->firmware_options_3 =
7022 ha->tgt.saved_firmware_options_3;
7027 if (ha->base_qpair->enable_class_2) {
7028 if (vha->flags.init_done)
7029 fc_host_supported_classes(vha->host) =
7030 FC_COS_CLASS2 | FC_COS_CLASS3;
7032 nv->firmware_options_2 |= cpu_to_le32(BIT_8);
7034 if (vha->flags.init_done)
7035 fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
7037 nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
7042 qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha,
7043 struct init_cb_81xx *icb)
7045 struct qla_hw_data *ha = vha->hw;
7047 if (!QLA_TGT_MODE_ENABLED())
7050 if (ha->tgt.node_name_set) {
7051 memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
7052 icb->firmware_options_1 |= cpu_to_le32(BIT_14);
7057 qlt_83xx_iospace_config(struct qla_hw_data *ha)
7059 if (!QLA_TGT_MODE_ENABLED())
7062 ha->msix_count += 1; /* For ATIO Q */
7067 qlt_modify_vp_config(struct scsi_qla_host *vha,
7068 struct vp_config_entry_24xx *vpmod)
7070 /* enable target mode. Bit5 = 1 => disable */
7071 if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
7072 vpmod->options_idx1 &= ~BIT_5;
7074 /* Disable ini mode, if requested. bit4 = 1 => disable */
7075 if (qla_tgt_mode_enabled(vha))
7076 vpmod->options_idx1 &= ~BIT_4;
7080 qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha)
7084 if (!QLA_TGT_MODE_ENABLED())
7087 if ((ql2xenablemsix == 0) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
7089 ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in;
7090 ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out;
7092 ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in;
7093 ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out;
7096 mutex_init(&base_vha->vha_tgt.tgt_mutex);
7097 mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex);
7099 INIT_LIST_HEAD(&base_vha->unknown_atio_list);
7100 INIT_DELAYED_WORK(&base_vha->unknown_atio_work,
7101 qlt_unknown_atio_work_fn);
7103 qlt_clear_mode(base_vha);
7105 rc = btree_init32(&ha->tgt.host_map);
7107 ql_log(ql_log_info, base_vha, 0xd03d,
7108 "Unable to initialize ha->host_map btree\n");
7110 qlt_update_vp_map(base_vha, SET_VP_IDX);
7114 qla83xx_msix_atio_q(int irq, void *dev_id)
7116 struct rsp_que *rsp;
7117 scsi_qla_host_t *vha;
7118 struct qla_hw_data *ha;
7119 unsigned long flags;
7121 rsp = (struct rsp_que *) dev_id;
7123 vha = pci_get_drvdata(ha->pdev);
7125 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7127 qlt_24xx_process_atio_queue(vha, 0);
7129 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7135 qlt_handle_abts_recv_work(struct work_struct *work)
7137 struct qla_tgt_sess_op *op = container_of(work,
7138 struct qla_tgt_sess_op, work);
7139 scsi_qla_host_t *vha = op->vha;
7140 struct qla_hw_data *ha = vha->hw;
7141 unsigned long flags;
7143 if (qla2x00_reset_active(vha) ||
7144 (op->chip_reset != ha->base_qpair->chip_reset))
7147 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
7148 qlt_24xx_process_atio_queue(vha, 0);
7149 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
7151 spin_lock_irqsave(&ha->hardware_lock, flags);
7152 qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio);
7153 spin_unlock_irqrestore(&ha->hardware_lock, flags);
7159 qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp,
7162 struct qla_tgt_sess_op *op;
7164 op = kzalloc(sizeof(*op), GFP_ATOMIC);
7167 /* do not reach for ATIO queue here. This is best effort err
7168 * recovery at this point.
7170 qlt_response_pkt_all_vps(vha, rsp, pkt);
7174 memcpy(&op->atio, pkt, sizeof(*pkt));
7176 op->chip_reset = vha->hw->base_qpair->chip_reset;
7178 INIT_WORK(&op->work, qlt_handle_abts_recv_work);
7179 queue_work(qla_tgt_wq, &op->work);
7184 qlt_mem_alloc(struct qla_hw_data *ha)
7186 if (!QLA_TGT_MODE_ENABLED())
7189 ha->tgt.tgt_vp_map = kcalloc(MAX_MULTI_ID_FABRIC,
7190 sizeof(struct qla_tgt_vp_map),
7192 if (!ha->tgt.tgt_vp_map)
7195 ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev,
7196 (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp),
7197 &ha->tgt.atio_dma, GFP_KERNEL);
7198 if (!ha->tgt.atio_ring) {
7199 kfree(ha->tgt.tgt_vp_map);
7206 qlt_mem_free(struct qla_hw_data *ha)
7208 if (!QLA_TGT_MODE_ENABLED())
7211 if (ha->tgt.atio_ring) {
7212 dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) *
7213 sizeof(struct atio_from_isp), ha->tgt.atio_ring,
7216 ha->tgt.atio_ring = NULL;
7217 ha->tgt.atio_dma = 0;
7218 kfree(ha->tgt.tgt_vp_map);
7219 ha->tgt.tgt_vp_map = NULL;
7222 /* vport_slock to be held by the caller */
7224 qlt_update_vp_map(struct scsi_qla_host *vha, int cmd)
7230 if (!QLA_TGT_MODE_ENABLED())
7233 key = vha->d_id.b24;
7237 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha;
7240 slot = btree_lookup32(&vha->hw->tgt.host_map, key);
7242 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018,
7243 "Save vha in host_map %p %06x\n", vha, key);
7244 rc = btree_insert32(&vha->hw->tgt.host_map,
7245 key, vha, GFP_ATOMIC);
7247 ql_log(ql_log_info, vha, 0xd03e,
7248 "Unable to insert s_id into host_map: %06x\n",
7252 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019,
7253 "replace existing vha in host_map %p %06x\n", vha, key);
7254 btree_update32(&vha->hw->tgt.host_map, key, vha);
7257 vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL;
7260 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a,
7261 "clear vha in host_map %p %06x\n", vha, key);
7262 slot = btree_lookup32(&vha->hw->tgt.host_map, key);
7264 btree_remove32(&vha->hw->tgt.host_map, key);
7270 void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id)
7273 if (!vha->d_id.b24) {
7275 qlt_update_vp_map(vha, SET_AL_PA);
7276 } else if (vha->d_id.b24 != id.b24) {
7277 qlt_update_vp_map(vha, RESET_AL_PA);
7279 qlt_update_vp_map(vha, SET_AL_PA);
7283 static int __init qlt_parse_ini_mode(void)
7285 if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0)
7286 ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
7287 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0)
7288 ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED;
7289 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0)
7290 ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED;
7291 else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0)
7292 ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL;
7299 int __init qlt_init(void)
7303 BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
7304 BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
7306 if (!qlt_parse_ini_mode()) {
7307 ql_log(ql_log_fatal, NULL, 0xe06b,
7308 "qlt_parse_ini_mode() failed\n");
7312 if (!QLA_TGT_MODE_ENABLED())
7315 qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep",
7316 sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct
7317 qla_tgt_mgmt_cmd), 0, NULL);
7318 if (!qla_tgt_mgmt_cmd_cachep) {
7319 ql_log(ql_log_fatal, NULL, 0xd04b,
7320 "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
7324 qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep",
7325 sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t),
7328 if (!qla_tgt_plogi_cachep) {
7329 ql_log(ql_log_fatal, NULL, 0xe06d,
7330 "kmem_cache_create for qla_tgt_plogi_cachep failed\n");
7332 goto out_mgmt_cmd_cachep;
7335 qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab,
7336 mempool_free_slab, qla_tgt_mgmt_cmd_cachep);
7337 if (!qla_tgt_mgmt_cmd_mempool) {
7338 ql_log(ql_log_fatal, NULL, 0xe06e,
7339 "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
7341 goto out_plogi_cachep;
7344 qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0);
7346 ql_log(ql_log_fatal, NULL, 0xe06f,
7347 "alloc_workqueue for qla_tgt_wq failed\n");
7349 goto out_cmd_mempool;
7352 * Return 1 to signal that initiator-mode is being disabled
7354 return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0;
7357 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7359 kmem_cache_destroy(qla_tgt_plogi_cachep);
7360 out_mgmt_cmd_cachep:
7361 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
7367 if (!QLA_TGT_MODE_ENABLED())
7370 destroy_workqueue(qla_tgt_wq);
7371 mempool_destroy(qla_tgt_mgmt_cmd_mempool);
7372 kmem_cache_destroy(qla_tgt_plogi_cachep);
7373 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);