2 * qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx
4 * based on qla2x00t.c code:
6 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
7 * Copyright (C) 2004 - 2005 Leonid Stoljar
8 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
9 * Copyright (C) 2006 - 2010 ID7 Ltd.
11 * Forward port and refactoring to modern qla2xxx and target/configfs
13 * Copyright (C) 2010-2013 Nicholas A. Bellinger <nab@kernel.org>
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation, version 2
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/types.h>
29 #include <linux/blkdev.h>
30 #include <linux/interrupt.h>
31 #include <linux/pci.h>
32 #include <linux/delay.h>
33 #include <linux/list.h>
34 #include <linux/workqueue.h>
35 #include <asm/unaligned.h>
36 #include <scsi/scsi.h>
37 #include <scsi/scsi_host.h>
38 #include <scsi/scsi_tcq.h>
39 #include <target/target_core_base.h>
40 #include <target/target_core_fabric.h>
43 #include "qla_target.h"
45 static int ql2xtgt_tape_enable
;
46 module_param(ql2xtgt_tape_enable
, int, S_IRUGO
|S_IWUSR
);
47 MODULE_PARM_DESC(ql2xtgt_tape_enable
,
48 "Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
50 static char *qlini_mode
= QLA2XXX_INI_MODE_STR_ENABLED
;
51 module_param(qlini_mode
, charp
, S_IRUGO
);
52 MODULE_PARM_DESC(qlini_mode
,
53 "Determines when initiator mode will be enabled. Possible values: "
54 "\"exclusive\" - initiator mode will be enabled on load, "
55 "disabled on enabling target mode and then on disabling target mode "
57 "\"disabled\" - initiator mode will never be enabled; "
58 "\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
60 "\"enabled\" (default) - initiator mode will always stay enabled.");
62 static int ql_dm_tgt_ex_pct
= 0;
63 module_param(ql_dm_tgt_ex_pct
, int, S_IRUGO
|S_IWUSR
);
64 MODULE_PARM_DESC(ql_dm_tgt_ex_pct
,
65 "For Dual Mode (qlini_mode=dual), this parameter determines "
66 "the percentage of exchanges/cmds FW will allocate resources "
70 module_param(ql2xuctrlirq
, int, 0644);
71 MODULE_PARM_DESC(ql2xuctrlirq
,
72 "User to control IRQ placement via smp_affinity."
73 "Valid with qlini_mode=disabled."
74 "1(default): enable");
76 int ql2x_ini_mode
= QLA2XXX_INI_MODE_EXCLUSIVE
;
78 static int temp_sam_status
= SAM_STAT_BUSY
;
81 * From scsi/fc/fc_fcp.h
83 enum fcp_resp_rsp_codes
{
85 FCP_DATA_LEN_INVALID
= 1,
86 FCP_CMND_FIELDS_INVALID
= 2,
87 FCP_DATA_PARAM_MISMATCH
= 3,
90 FCP_TMF_INVALID_LUN
= 9,
94 * fc_pri_ta from scsi/fc/fc_fcp.h
96 #define FCP_PTA_SIMPLE 0 /* simple task attribute */
97 #define FCP_PTA_HEADQ 1 /* head of queue task attribute */
98 #define FCP_PTA_ORDERED 2 /* ordered task attribute */
99 #define FCP_PTA_ACA 4 /* auto. contingent allegiance */
100 #define FCP_PTA_MASK 7 /* mask for task attribute field */
101 #define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */
102 #define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */
105 * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which
106 * must be called under HW lock and could unlock/lock it inside.
107 * It isn't an issue, since in the current implementation on the time when
108 * those functions are called:
110 * - Either context is IRQ and only IRQ handler can modify HW data,
111 * including rings related fields,
113 * - Or access to target mode variables from struct qla_tgt doesn't
114 * cross those functions boundaries, except tgt_stop, which
115 * additionally protected by irq_cmd_count.
117 /* Predefs for callbacks handed to qla2xxx LLD */
118 static void qlt_24xx_atio_pkt(struct scsi_qla_host
*ha
,
119 struct atio_from_isp
*pkt
, uint8_t);
120 static void qlt_response_pkt(struct scsi_qla_host
*ha
, struct rsp_que
*rsp
,
122 static int qlt_issue_task_mgmt(struct fc_port
*sess
, u64 lun
,
123 int fn
, void *iocb
, int flags
);
124 static void qlt_send_term_exchange(struct qla_qpair
*, struct qla_tgt_cmd
125 *cmd
, struct atio_from_isp
*atio
, int ha_locked
, int ul_abort
);
126 static void qlt_alloc_qfull_cmd(struct scsi_qla_host
*vha
,
127 struct atio_from_isp
*atio
, uint16_t status
, int qfull
);
128 static void qlt_disable_vha(struct scsi_qla_host
*vha
);
129 static void qlt_clear_tgt_db(struct qla_tgt
*tgt
);
130 static void qlt_send_notify_ack(struct qla_qpair
*qpair
,
131 struct imm_ntfy_from_isp
*ntfy
,
132 uint32_t add_flags
, uint16_t resp_code
, int resp_code_valid
,
133 uint16_t srr_flags
, uint16_t srr_reject_code
, uint8_t srr_explan
);
134 static void qlt_send_term_imm_notif(struct scsi_qla_host
*vha
,
135 struct imm_ntfy_from_isp
*imm
, int ha_locked
);
136 static struct fc_port
*qlt_create_sess(struct scsi_qla_host
*vha
,
137 fc_port_t
*fcport
, bool local
);
138 void qlt_unreg_sess(struct fc_port
*sess
);
139 static void qlt_24xx_handle_abts(struct scsi_qla_host
*,
140 struct abts_recv_from_24xx
*);
141 static void qlt_send_busy(struct qla_qpair
*, struct atio_from_isp
*,
147 static struct kmem_cache
*qla_tgt_mgmt_cmd_cachep
;
148 struct kmem_cache
*qla_tgt_plogi_cachep
;
149 static mempool_t
*qla_tgt_mgmt_cmd_mempool
;
150 static struct workqueue_struct
*qla_tgt_wq
;
151 static DEFINE_MUTEX(qla_tgt_mutex
);
152 static LIST_HEAD(qla_tgt_glist
);
154 static const char *prot_op_str(u32 prot_op
)
157 case TARGET_PROT_NORMAL
: return "NORMAL";
158 case TARGET_PROT_DIN_INSERT
: return "DIN_INSERT";
159 case TARGET_PROT_DOUT_INSERT
: return "DOUT_INSERT";
160 case TARGET_PROT_DIN_STRIP
: return "DIN_STRIP";
161 case TARGET_PROT_DOUT_STRIP
: return "DOUT_STRIP";
162 case TARGET_PROT_DIN_PASS
: return "DIN_PASS";
163 case TARGET_PROT_DOUT_PASS
: return "DOUT_PASS";
164 default: return "UNKNOWN";
168 /* This API intentionally takes dest as a parameter, rather than returning
169 * int value to avoid caller forgetting to issue wmb() after the store */
170 void qlt_do_generation_tick(struct scsi_qla_host
*vha
, int *dest
)
172 scsi_qla_host_t
*base_vha
= pci_get_drvdata(vha
->hw
->pdev
);
173 *dest
= atomic_inc_return(&base_vha
->generation_tick
);
178 /* Might release hw lock, then reaquire!! */
179 static inline int qlt_issue_marker(struct scsi_qla_host
*vha
, int vha_locked
)
181 /* Send marker if required */
182 if (unlikely(vha
->marker_needed
!= 0)) {
183 int rc
= qla2x00_issue_marker(vha
, vha_locked
);
184 if (rc
!= QLA_SUCCESS
) {
185 ql_dbg(ql_dbg_tgt
, vha
, 0xe03d,
186 "qla_target(%d): issue_marker() failed\n",
195 struct scsi_qla_host
*qlt_find_host_by_d_id(struct scsi_qla_host
*vha
,
198 struct scsi_qla_host
*host
;
201 if ((vha
->d_id
.b
.area
== d_id
[1]) && (vha
->d_id
.b
.domain
== d_id
[0]) &&
202 (vha
->d_id
.b
.al_pa
== d_id
[2]))
205 key
= (uint32_t)d_id
[0] << 16;
206 key
|= (uint32_t)d_id
[1] << 8;
207 key
|= (uint32_t)d_id
[2];
209 host
= btree_lookup32(&vha
->hw
->tgt
.host_map
, key
);
211 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf005,
212 "Unable to find host %06x\n", key
);
218 struct scsi_qla_host
*qlt_find_host_by_vp_idx(struct scsi_qla_host
*vha
,
221 struct qla_hw_data
*ha
= vha
->hw
;
223 if (vha
->vp_idx
== vp_idx
)
226 BUG_ON(ha
->tgt
.tgt_vp_map
== NULL
);
227 if (likely(test_bit(vp_idx
, ha
->vp_idx_map
)))
228 return ha
->tgt
.tgt_vp_map
[vp_idx
].vha
;
233 static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host
*vha
)
237 spin_lock_irqsave(&vha
->hw
->tgt
.q_full_lock
, flags
);
239 vha
->hw
->tgt
.num_pend_cmds
++;
240 if (vha
->hw
->tgt
.num_pend_cmds
> vha
->qla_stats
.stat_max_pend_cmds
)
241 vha
->qla_stats
.stat_max_pend_cmds
=
242 vha
->hw
->tgt
.num_pend_cmds
;
243 spin_unlock_irqrestore(&vha
->hw
->tgt
.q_full_lock
, flags
);
245 static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host
*vha
)
249 spin_lock_irqsave(&vha
->hw
->tgt
.q_full_lock
, flags
);
250 vha
->hw
->tgt
.num_pend_cmds
--;
251 spin_unlock_irqrestore(&vha
->hw
->tgt
.q_full_lock
, flags
);
255 static void qlt_queue_unknown_atio(scsi_qla_host_t
*vha
,
256 struct atio_from_isp
*atio
, uint8_t ha_locked
)
258 struct qla_tgt_sess_op
*u
;
259 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
263 ql_dbg(ql_dbg_async
, vha
, 0x502c,
264 "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
269 u
= kzalloc(sizeof(*u
), GFP_ATOMIC
);
274 memcpy(&u
->atio
, atio
, sizeof(*atio
));
275 INIT_LIST_HEAD(&u
->cmd_list
);
277 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
278 list_add_tail(&u
->cmd_list
, &vha
->unknown_atio_list
);
279 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
281 schedule_delayed_work(&vha
->unknown_atio_work
, 1);
287 qlt_send_term_exchange(vha
->hw
->base_qpair
, NULL
, atio
, ha_locked
, 0);
291 static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host
*vha
,
294 struct qla_tgt_sess_op
*u
, *t
;
295 scsi_qla_host_t
*host
;
296 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
300 list_for_each_entry_safe(u
, t
, &vha
->unknown_atio_list
, cmd_list
) {
302 ql_dbg(ql_dbg_async
, vha
, 0x502e,
303 "Freeing unknown %s %p, because of Abort\n",
305 qlt_send_term_exchange(vha
->hw
->base_qpair
, NULL
,
306 &u
->atio
, ha_locked
, 0);
310 host
= qlt_find_host_by_d_id(vha
, u
->atio
.u
.isp24
.fcp_hdr
.d_id
);
312 ql_dbg(ql_dbg_async
, vha
, 0x502f,
313 "Requeuing unknown ATIO_TYPE7 %p\n", u
);
314 qlt_24xx_atio_pkt(host
, &u
->atio
, ha_locked
);
315 } else if (tgt
->tgt_stop
) {
316 ql_dbg(ql_dbg_async
, vha
, 0x503a,
317 "Freeing unknown %s %p, because tgt is being stopped\n",
319 qlt_send_term_exchange(vha
->hw
->base_qpair
, NULL
,
320 &u
->atio
, ha_locked
, 0);
322 ql_dbg(ql_dbg_async
, vha
, 0x503d,
323 "Reschedule u %p, vha %p, host %p\n", u
, vha
, host
);
326 schedule_delayed_work(&vha
->unknown_atio_work
,
333 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
334 list_del(&u
->cmd_list
);
335 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
340 void qlt_unknown_atio_work_fn(struct work_struct
*work
)
342 struct scsi_qla_host
*vha
= container_of(to_delayed_work(work
),
343 struct scsi_qla_host
, unknown_atio_work
);
345 qlt_try_to_dequeue_unknown_atios(vha
, 0);
348 static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host
*vha
,
349 struct atio_from_isp
*atio
, uint8_t ha_locked
)
351 ql_dbg(ql_dbg_tgt
, vha
, 0xe072,
352 "%s: qla_target(%d): type %x ox_id %04x\n",
353 __func__
, vha
->vp_idx
, atio
->u
.raw
.entry_type
,
354 be16_to_cpu(atio
->u
.isp24
.fcp_hdr
.ox_id
));
356 switch (atio
->u
.raw
.entry_type
) {
359 struct scsi_qla_host
*host
= qlt_find_host_by_d_id(vha
,
360 atio
->u
.isp24
.fcp_hdr
.d_id
);
361 if (unlikely(NULL
== host
)) {
362 ql_dbg(ql_dbg_tgt
, vha
, 0xe03e,
363 "qla_target(%d): Received ATIO_TYPE7 "
364 "with unknown d_id %x:%x:%x\n", vha
->vp_idx
,
365 atio
->u
.isp24
.fcp_hdr
.d_id
[0],
366 atio
->u
.isp24
.fcp_hdr
.d_id
[1],
367 atio
->u
.isp24
.fcp_hdr
.d_id
[2]);
370 qlt_queue_unknown_atio(vha
, atio
, ha_locked
);
373 if (unlikely(!list_empty(&vha
->unknown_atio_list
)))
374 qlt_try_to_dequeue_unknown_atios(vha
, ha_locked
);
376 qlt_24xx_atio_pkt(host
, atio
, ha_locked
);
380 case IMMED_NOTIFY_TYPE
:
382 struct scsi_qla_host
*host
= vha
;
383 struct imm_ntfy_from_isp
*entry
=
384 (struct imm_ntfy_from_isp
*)atio
;
386 qlt_issue_marker(vha
, ha_locked
);
388 if ((entry
->u
.isp24
.vp_index
!= 0xFF) &&
389 (entry
->u
.isp24
.nport_handle
!= 0xFFFF)) {
390 host
= qlt_find_host_by_vp_idx(vha
,
391 entry
->u
.isp24
.vp_index
);
392 if (unlikely(!host
)) {
393 ql_dbg(ql_dbg_tgt
, vha
, 0xe03f,
394 "qla_target(%d): Received "
395 "ATIO (IMMED_NOTIFY_TYPE) "
396 "with unknown vp_index %d\n",
397 vha
->vp_idx
, entry
->u
.isp24
.vp_index
);
401 qlt_24xx_atio_pkt(host
, atio
, ha_locked
);
405 case VP_RPT_ID_IOCB_TYPE
:
406 qla24xx_report_id_acquisition(vha
,
407 (struct vp_rpt_id_entry_24xx
*)atio
);
412 struct abts_recv_from_24xx
*entry
=
413 (struct abts_recv_from_24xx
*)atio
;
414 struct scsi_qla_host
*host
= qlt_find_host_by_vp_idx(vha
,
418 if (unlikely(!host
)) {
419 ql_dbg(ql_dbg_tgt
, vha
, 0xe00a,
420 "qla_target(%d): Response pkt (ABTS_RECV_24XX) "
421 "received, with unknown vp_index %d\n",
422 vha
->vp_idx
, entry
->vp_index
);
426 spin_lock_irqsave(&host
->hw
->hardware_lock
, flags
);
427 qlt_24xx_handle_abts(host
, (struct abts_recv_from_24xx
*)atio
);
429 spin_unlock_irqrestore(&host
->hw
->hardware_lock
, flags
);
433 /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */
436 ql_dbg(ql_dbg_tgt
, vha
, 0xe040,
437 "qla_target(%d): Received unknown ATIO atio "
438 "type %x\n", vha
->vp_idx
, atio
->u
.raw
.entry_type
);
445 void qlt_response_pkt_all_vps(struct scsi_qla_host
*vha
,
446 struct rsp_que
*rsp
, response_t
*pkt
)
448 switch (pkt
->entry_type
) {
450 ql_dbg(ql_dbg_tgt
, vha
, 0xe073,
451 "qla_target(%d):%s: CRC2 Response pkt\n",
452 vha
->vp_idx
, __func__
);
455 struct ctio7_from_24xx
*entry
= (struct ctio7_from_24xx
*)pkt
;
456 struct scsi_qla_host
*host
= qlt_find_host_by_vp_idx(vha
,
458 if (unlikely(!host
)) {
459 ql_dbg(ql_dbg_tgt
, vha
, 0xe041,
460 "qla_target(%d): Response pkt (CTIO_TYPE7) "
461 "received, with unknown vp_index %d\n",
462 vha
->vp_idx
, entry
->vp_index
);
465 qlt_response_pkt(host
, rsp
, pkt
);
469 case IMMED_NOTIFY_TYPE
:
471 struct scsi_qla_host
*host
= vha
;
472 struct imm_ntfy_from_isp
*entry
=
473 (struct imm_ntfy_from_isp
*)pkt
;
475 host
= qlt_find_host_by_vp_idx(vha
, entry
->u
.isp24
.vp_index
);
476 if (unlikely(!host
)) {
477 ql_dbg(ql_dbg_tgt
, vha
, 0xe042,
478 "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) "
479 "received, with unknown vp_index %d\n",
480 vha
->vp_idx
, entry
->u
.isp24
.vp_index
);
483 qlt_response_pkt(host
, rsp
, pkt
);
487 case NOTIFY_ACK_TYPE
:
489 struct scsi_qla_host
*host
= vha
;
490 struct nack_to_isp
*entry
= (struct nack_to_isp
*)pkt
;
492 if (0xFF != entry
->u
.isp24
.vp_index
) {
493 host
= qlt_find_host_by_vp_idx(vha
,
494 entry
->u
.isp24
.vp_index
);
495 if (unlikely(!host
)) {
496 ql_dbg(ql_dbg_tgt
, vha
, 0xe043,
497 "qla_target(%d): Response "
498 "pkt (NOTIFY_ACK_TYPE) "
499 "received, with unknown "
500 "vp_index %d\n", vha
->vp_idx
,
501 entry
->u
.isp24
.vp_index
);
505 qlt_response_pkt(host
, rsp
, pkt
);
511 struct abts_recv_from_24xx
*entry
=
512 (struct abts_recv_from_24xx
*)pkt
;
513 struct scsi_qla_host
*host
= qlt_find_host_by_vp_idx(vha
,
515 if (unlikely(!host
)) {
516 ql_dbg(ql_dbg_tgt
, vha
, 0xe044,
517 "qla_target(%d): Response pkt "
518 "(ABTS_RECV_24XX) received, with unknown "
519 "vp_index %d\n", vha
->vp_idx
, entry
->vp_index
);
522 qlt_response_pkt(host
, rsp
, pkt
);
528 struct abts_resp_to_24xx
*entry
=
529 (struct abts_resp_to_24xx
*)pkt
;
530 struct scsi_qla_host
*host
= qlt_find_host_by_vp_idx(vha
,
532 if (unlikely(!host
)) {
533 ql_dbg(ql_dbg_tgt
, vha
, 0xe045,
534 "qla_target(%d): Response pkt "
535 "(ABTS_RECV_24XX) received, with unknown "
536 "vp_index %d\n", vha
->vp_idx
, entry
->vp_index
);
539 qlt_response_pkt(host
, rsp
, pkt
);
544 qlt_response_pkt(vha
, rsp
, pkt
);
551 * All qlt_plogi_ack_t operations are protected by hardware_lock
553 static int qla24xx_post_nack_work(struct scsi_qla_host
*vha
, fc_port_t
*fcport
,
554 struct imm_ntfy_from_isp
*ntfy
, int type
)
556 struct qla_work_evt
*e
;
557 e
= qla2x00_alloc_work(vha
, QLA_EVT_NACK
);
559 return QLA_FUNCTION_FAILED
;
561 e
->u
.nack
.fcport
= fcport
;
562 e
->u
.nack
.type
= type
;
563 memcpy(e
->u
.nack
.iocb
, ntfy
, sizeof(struct imm_ntfy_from_isp
));
564 return qla2x00_post_work(vha
, e
);
568 void qla2x00_async_nack_sp_done(void *s
, int res
)
570 struct srb
*sp
= (struct srb
*)s
;
571 struct scsi_qla_host
*vha
= sp
->vha
;
574 ql_dbg(ql_dbg_disc
, vha
, 0x20f2,
575 "Async done-%s res %x %8phC type %d\n",
576 sp
->name
, res
, sp
->fcport
->port_name
, sp
->type
);
578 spin_lock_irqsave(&vha
->hw
->tgt
.sess_lock
, flags
);
579 sp
->fcport
->flags
&= ~FCF_ASYNC_SENT
;
580 sp
->fcport
->chip_reset
= vha
->hw
->base_qpair
->chip_reset
;
584 sp
->fcport
->login_gen
++;
585 sp
->fcport
->fw_login_state
= DSC_LS_PLOGI_COMP
;
586 sp
->fcport
->logout_on_delete
= 1;
587 sp
->fcport
->plogi_nack_done_deadline
= jiffies
+ HZ
;
588 sp
->fcport
->send_els_logo
= 0;
592 sp
->fcport
->fw_login_state
= DSC_LS_PRLI_COMP
;
593 sp
->fcport
->deleted
= 0;
594 sp
->fcport
->send_els_logo
= 0;
596 if (!sp
->fcport
->login_succ
&&
597 !IS_SW_RESV_ADDR(sp
->fcport
->d_id
)) {
598 sp
->fcport
->login_succ
= 1;
602 if (!IS_IIDMA_CAPABLE(vha
->hw
) ||
603 !vha
->hw
->flags
.gpsc_supported
) {
604 ql_dbg(ql_dbg_disc
, vha
, 0x20f3,
605 "%s %d %8phC post upd_fcport fcp_cnt %d\n",
607 sp
->fcport
->port_name
,
610 qla24xx_post_upd_fcport_work(vha
, sp
->fcport
);
612 ql_dbg(ql_dbg_disc
, vha
, 0x20f5,
613 "%s %d %8phC post gpsc fcp_cnt %d\n",
615 sp
->fcport
->port_name
,
618 qla24xx_post_gpsc_work(vha
, sp
->fcport
);
624 sp
->fcport
->login_gen
++;
625 sp
->fcport
->fw_login_state
= DSC_LS_PORT_UNAVAIL
;
626 qlt_logo_completion_handler(sp
->fcport
, MBS_COMMAND_COMPLETE
);
629 spin_unlock_irqrestore(&vha
->hw
->tgt
.sess_lock
, flags
);
634 int qla24xx_async_notify_ack(scsi_qla_host_t
*vha
, fc_port_t
*fcport
,
635 struct imm_ntfy_from_isp
*ntfy
, int type
)
637 int rval
= QLA_FUNCTION_FAILED
;
641 fcport
->flags
|= FCF_ASYNC_SENT
;
644 fcport
->fw_login_state
= DSC_LS_PLOGI_PEND
;
648 fcport
->fw_login_state
= DSC_LS_PRLI_PEND
;
653 fcport
->fw_login_state
= DSC_LS_LOGO_PEND
;
658 sp
= qla2x00_get_sp(vha
, fcport
, GFP_ATOMIC
);
665 qla2x00_init_timer(sp
, qla2x00_get_async_timeout(vha
)+2);
667 sp
->u
.iocb_cmd
.u
.nack
.ntfy
= ntfy
;
669 sp
->done
= qla2x00_async_nack_sp_done
;
671 rval
= qla2x00_start_sp(sp
);
672 if (rval
!= QLA_SUCCESS
)
675 ql_dbg(ql_dbg_disc
, vha
, 0x20f4,
676 "Async-%s %8phC hndl %x %s\n",
677 sp
->name
, fcport
->port_name
, sp
->handle
, c
);
684 fcport
->flags
&= ~FCF_ASYNC_SENT
;
688 void qla24xx_do_nack_work(struct scsi_qla_host
*vha
, struct qla_work_evt
*e
)
693 switch (e
->u
.nack
.type
) {
695 mutex_lock(&vha
->vha_tgt
.tgt_mutex
);
696 t
= qlt_create_sess(vha
, e
->u
.nack
.fcport
, 0);
697 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
699 ql_log(ql_log_info
, vha
, 0xd034,
700 "%s create sess success %p", __func__
, t
);
701 spin_lock_irqsave(&vha
->hw
->tgt
.sess_lock
, flags
);
702 /* create sess has an extra kref */
703 vha
->hw
->tgt
.tgt_ops
->put_sess(e
->u
.nack
.fcport
);
704 spin_unlock_irqrestore(&vha
->hw
->tgt
.sess_lock
, flags
);
708 qla24xx_async_notify_ack(vha
, e
->u
.nack
.fcport
,
709 (struct imm_ntfy_from_isp
*)e
->u
.nack
.iocb
, e
->u
.nack
.type
);
712 void qla24xx_delete_sess_fn(struct work_struct
*work
)
714 fc_port_t
*fcport
= container_of(work
, struct fc_port
, del_work
);
715 struct qla_hw_data
*ha
= fcport
->vha
->hw
;
718 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
720 if (fcport
->se_sess
) {
721 ha
->tgt
.tgt_ops
->shutdown_sess(fcport
);
722 ha
->tgt
.tgt_ops
->put_sess(fcport
);
724 qlt_unreg_sess(fcport
);
726 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
730 * Called from qla2x00_reg_remote_port()
732 void qlt_fc_port_added(struct scsi_qla_host
*vha
, fc_port_t
*fcport
)
734 struct qla_hw_data
*ha
= vha
->hw
;
735 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
736 struct fc_port
*sess
= fcport
;
739 if (!vha
->hw
->tgt
.tgt_ops
)
742 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
744 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
748 if (fcport
->disc_state
== DSC_DELETE_PEND
) {
749 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
753 if (!sess
->se_sess
) {
754 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
756 mutex_lock(&vha
->vha_tgt
.tgt_mutex
);
757 sess
= qlt_create_sess(vha
, fcport
, false);
758 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
760 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
762 if (fcport
->fw_login_state
== DSC_LS_PRLI_COMP
) {
763 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
767 if (!kref_get_unless_zero(&sess
->sess_kref
)) {
768 ql_dbg(ql_dbg_disc
, vha
, 0x2107,
769 "%s: kref_get fail sess %8phC \n",
770 __func__
, sess
->port_name
);
771 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
775 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf04c,
776 "qla_target(%u): %ssession for port %8phC "
777 "(loop ID %d) reappeared\n", vha
->vp_idx
,
778 sess
->local
? "local " : "", sess
->port_name
, sess
->loop_id
);
780 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf007,
781 "Reappeared sess %p\n", sess
);
783 ha
->tgt
.tgt_ops
->update_sess(sess
, fcport
->d_id
,
785 (fcport
->flags
& FCF_CONF_COMP_SUPPORTED
));
788 if (sess
&& sess
->local
) {
789 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf04d,
790 "qla_target(%u): local session for "
791 "port %8phC (loop ID %d) became global\n", vha
->vp_idx
,
792 fcport
->port_name
, sess
->loop_id
);
795 ha
->tgt
.tgt_ops
->put_sess(sess
);
796 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
800 * This is a zero-base ref-counting solution, since hardware_lock
801 * guarantees that ref_count is not modified concurrently.
802 * Upon successful return content of iocb is undefined
804 static struct qlt_plogi_ack_t
*
805 qlt_plogi_ack_find_add(struct scsi_qla_host
*vha
, port_id_t
*id
,
806 struct imm_ntfy_from_isp
*iocb
)
808 struct qlt_plogi_ack_t
*pla
;
810 list_for_each_entry(pla
, &vha
->plogi_ack_list
, list
) {
811 if (pla
->id
.b24
== id
->b24
) {
812 qlt_send_term_imm_notif(vha
, &pla
->iocb
, 1);
813 memcpy(&pla
->iocb
, iocb
, sizeof(pla
->iocb
));
818 pla
= kmem_cache_zalloc(qla_tgt_plogi_cachep
, GFP_ATOMIC
);
820 ql_dbg(ql_dbg_async
, vha
, 0x5088,
821 "qla_target(%d): Allocation of plogi_ack failed\n",
826 memcpy(&pla
->iocb
, iocb
, sizeof(pla
->iocb
));
828 list_add_tail(&pla
->list
, &vha
->plogi_ack_list
);
833 void qlt_plogi_ack_unref(struct scsi_qla_host
*vha
,
834 struct qlt_plogi_ack_t
*pla
)
836 struct imm_ntfy_from_isp
*iocb
= &pla
->iocb
;
839 fc_port_t
*fcport
= pla
->fcport
;
841 BUG_ON(!pla
->ref_count
);
847 ql_dbg(ql_dbg_disc
, vha
, 0x5089,
848 "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x"
849 " exch %#x ox_id %#x\n", iocb
->u
.isp24
.port_name
,
850 iocb
->u
.isp24
.port_id
[2], iocb
->u
.isp24
.port_id
[1],
851 iocb
->u
.isp24
.port_id
[0],
852 le16_to_cpu(iocb
->u
.isp24
.nport_handle
),
853 iocb
->u
.isp24
.exchange_address
, iocb
->ox_id
);
855 port_id
.b
.domain
= iocb
->u
.isp24
.port_id
[2];
856 port_id
.b
.area
= iocb
->u
.isp24
.port_id
[1];
857 port_id
.b
.al_pa
= iocb
->u
.isp24
.port_id
[0];
858 port_id
.b
.rsvd_1
= 0;
860 loop_id
= le16_to_cpu(iocb
->u
.isp24
.nport_handle
);
862 fcport
->loop_id
= loop_id
;
863 fcport
->d_id
= port_id
;
864 qla24xx_post_nack_work(vha
, fcport
, iocb
, SRB_NACK_PLOGI
);
866 list_for_each_entry(fcport
, &vha
->vp_fcports
, list
) {
867 if (fcport
->plogi_link
[QLT_PLOGI_LINK_SAME_WWN
] == pla
)
868 fcport
->plogi_link
[QLT_PLOGI_LINK_SAME_WWN
] = NULL
;
869 if (fcport
->plogi_link
[QLT_PLOGI_LINK_CONFLICT
] == pla
)
870 fcport
->plogi_link
[QLT_PLOGI_LINK_CONFLICT
] = NULL
;
873 list_del(&pla
->list
);
874 kmem_cache_free(qla_tgt_plogi_cachep
, pla
);
878 qlt_plogi_ack_link(struct scsi_qla_host
*vha
, struct qlt_plogi_ack_t
*pla
,
879 struct fc_port
*sess
, enum qlt_plogi_link_t link
)
881 struct imm_ntfy_from_isp
*iocb
= &pla
->iocb
;
882 /* Inc ref_count first because link might already be pointing at pla */
885 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf097,
886 "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC"
887 " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n",
888 sess
, link
, sess
->port_name
,
889 iocb
->u
.isp24
.port_name
, iocb
->u
.isp24
.port_id
[2],
890 iocb
->u
.isp24
.port_id
[1], iocb
->u
.isp24
.port_id
[0],
891 pla
->ref_count
, pla
, link
);
893 if (sess
->plogi_link
[link
])
894 qlt_plogi_ack_unref(vha
, sess
->plogi_link
[link
]);
896 if (link
== QLT_PLOGI_LINK_SAME_WWN
)
899 sess
->plogi_link
[link
] = pla
;
903 /* These fields must be initialized by the caller */
906 * number of cmds dropped while we were waiting for
907 * initiator to ack LOGO initialize to 1 if LOGO is
908 * triggered by a command, otherwise, to 0
912 /* These fields are used by callee */
913 struct list_head list
;
917 qlt_send_first_logo(struct scsi_qla_host
*vha
, qlt_port_logo_t
*logo
)
919 qlt_port_logo_t
*tmp
;
922 mutex_lock(&vha
->vha_tgt
.tgt_mutex
);
924 list_for_each_entry(tmp
, &vha
->logo_list
, list
) {
925 if (tmp
->id
.b24
== logo
->id
.b24
) {
926 tmp
->cmd_count
+= logo
->cmd_count
;
927 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
932 list_add_tail(&logo
->list
, &vha
->logo_list
);
934 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
936 res
= qla24xx_els_dcmd_iocb(vha
, ELS_DCMD_LOGO
, logo
->id
);
938 mutex_lock(&vha
->vha_tgt
.tgt_mutex
);
939 list_del(&logo
->list
);
940 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
942 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf098,
943 "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n",
944 logo
->id
.b
.domain
, logo
->id
.b
.area
, logo
->id
.b
.al_pa
,
945 logo
->cmd_count
, res
);
948 static void qlt_free_session_done(struct work_struct
*work
)
950 struct fc_port
*sess
= container_of(work
, struct fc_port
,
952 struct qla_tgt
*tgt
= sess
->tgt
;
953 struct scsi_qla_host
*vha
= sess
->vha
;
954 struct qla_hw_data
*ha
= vha
->hw
;
956 bool logout_started
= false;
958 scsi_qla_host_t
*base_vha
;
960 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf084,
961 "%s: se_sess %p / sess %p from port %8phC loop_id %#04x"
962 " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n",
963 __func__
, sess
->se_sess
, sess
, sess
->port_name
, sess
->loop_id
,
964 sess
->d_id
.b
.domain
, sess
->d_id
.b
.area
, sess
->d_id
.b
.al_pa
,
965 sess
->logout_on_delete
, sess
->keep_nport_handle
,
966 sess
->send_els_logo
);
968 if (!IS_SW_RESV_ADDR(sess
->d_id
)) {
969 if (sess
->send_els_logo
) {
970 qlt_port_logo_t logo
;
972 logo
.id
= sess
->d_id
;
974 qlt_send_first_logo(vha
, &logo
);
977 if (sess
->logout_on_delete
) {
980 rc
= qla2x00_post_async_logout_work(vha
, sess
, NULL
);
981 if (rc
!= QLA_SUCCESS
)
982 ql_log(ql_log_warn
, vha
, 0xf085,
983 "Schedule logo failed sess %p rc %d\n",
986 logout_started
= true;
991 * Release the target session for FC Nexus from fabric module code.
993 if (sess
->se_sess
!= NULL
)
994 ha
->tgt
.tgt_ops
->free_session(sess
);
996 if (logout_started
) {
999 while (!READ_ONCE(sess
->logout_completed
)) {
1001 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf086,
1002 "%s: waiting for sess %p logout\n",
1009 ql_dbg(ql_dbg_disc
, vha
, 0xf087,
1010 "%s: sess %p logout completed\n",__func__
, sess
);
1013 if (sess
->logo_ack_needed
) {
1014 sess
->logo_ack_needed
= 0;
1015 qla24xx_async_notify_ack(vha
, sess
,
1016 (struct imm_ntfy_from_isp
*)sess
->iocb
, SRB_NACK_LOGO
);
1019 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
1020 if (sess
->se_sess
) {
1021 sess
->se_sess
= NULL
;
1022 if (tgt
&& !IS_SW_RESV_ADDR(sess
->d_id
))
1026 sess
->disc_state
= DSC_DELETED
;
1027 sess
->fw_login_state
= DSC_LS_PORT_UNAVAIL
;
1028 sess
->deleted
= QLA_SESS_DELETED
;
1029 sess
->login_retry
= vha
->hw
->login_retry_count
;
1031 if (sess
->login_succ
&& !IS_SW_RESV_ADDR(sess
->d_id
)) {
1032 vha
->fcport_count
--;
1033 sess
->login_succ
= 0;
1036 if (sess
->chip_reset
!= ha
->base_qpair
->chip_reset
)
1037 qla2x00_clear_loop_id(sess
);
1039 if (sess
->conflict
) {
1040 sess
->conflict
->login_pause
= 0;
1041 sess
->conflict
= NULL
;
1042 if (!test_bit(UNLOADING
, &vha
->dpc_flags
))
1043 set_bit(RELOGIN_NEEDED
, &vha
->dpc_flags
);
1047 struct qlt_plogi_ack_t
*own
=
1048 sess
->plogi_link
[QLT_PLOGI_LINK_SAME_WWN
];
1049 struct qlt_plogi_ack_t
*con
=
1050 sess
->plogi_link
[QLT_PLOGI_LINK_CONFLICT
];
1051 struct imm_ntfy_from_isp
*iocb
;
1055 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf099,
1056 "se_sess %p / sess %p port %8phC is gone,"
1057 " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
1058 sess
->se_sess
, sess
, sess
->port_name
,
1059 own
? "releasing own PLOGI" : "no own PLOGI pending",
1060 own
? own
->ref_count
: -1,
1061 iocb
->u
.isp24
.port_name
, con
->ref_count
);
1062 qlt_plogi_ack_unref(vha
, con
);
1063 sess
->plogi_link
[QLT_PLOGI_LINK_CONFLICT
] = NULL
;
1065 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf09a,
1066 "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n",
1067 sess
->se_sess
, sess
, sess
->port_name
,
1068 own
? "releasing own PLOGI" :
1069 "no own PLOGI pending",
1070 own
? own
->ref_count
: -1);
1074 sess
->fw_login_state
= DSC_LS_PLOGI_PEND
;
1075 qlt_plogi_ack_unref(vha
, own
);
1076 sess
->plogi_link
[QLT_PLOGI_LINK_SAME_WWN
] = NULL
;
1079 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1081 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf001,
1082 "Unregistration of sess %p %8phC finished fcp_cnt %d\n",
1083 sess
, sess
->port_name
, vha
->fcport_count
);
1085 if (tgt
&& (tgt
->sess_count
== 0))
1086 wake_up_all(&tgt
->waitQ
);
1088 if (vha
->fcport_count
== 0)
1089 wake_up_all(&vha
->fcport_waitQ
);
1091 base_vha
= pci_get_drvdata(ha
->pdev
);
1092 if (test_bit(PFLG_DRIVER_REMOVING
, &base_vha
->pci_flags
))
1095 if (!tgt
|| !tgt
->tgt_stop
) {
1096 memset(&ea
, 0, sizeof(ea
));
1097 ea
.event
= FCME_DELETE_DONE
;
1099 qla2x00_fcport_event_handler(vha
, &ea
);
1103 /* ha->tgt.sess_lock supposed to be held on entry */
1104 void qlt_unreg_sess(struct fc_port
*sess
)
1106 struct scsi_qla_host
*vha
= sess
->vha
;
1108 ql_dbg(ql_dbg_disc
, sess
->vha
, 0x210a,
1109 "%s sess %p for deletion %8phC\n",
1110 __func__
, sess
, sess
->port_name
);
1113 vha
->hw
->tgt
.tgt_ops
->clear_nacl_from_fcport_map(sess
);
1115 qla2x00_mark_device_lost(vha
, sess
, 1, 1);
1117 sess
->deleted
= QLA_SESS_DELETION_IN_PROGRESS
;
1118 sess
->disc_state
= DSC_DELETE_PEND
;
1119 sess
->last_rscn_gen
= sess
->rscn_gen
;
1120 sess
->last_login_gen
= sess
->login_gen
;
1122 if (sess
->nvme_flag
& NVME_FLAG_REGISTERED
)
1123 schedule_work(&sess
->nvme_del_work
);
1125 INIT_WORK(&sess
->free_work
, qlt_free_session_done
);
1126 schedule_work(&sess
->free_work
);
1128 EXPORT_SYMBOL(qlt_unreg_sess
);
1130 static int qlt_reset(struct scsi_qla_host
*vha
, void *iocb
, int mcmd
)
1132 struct qla_hw_data
*ha
= vha
->hw
;
1133 struct fc_port
*sess
= NULL
;
1136 struct imm_ntfy_from_isp
*n
= (struct imm_ntfy_from_isp
*)iocb
;
1137 unsigned long flags
;
1139 loop_id
= le16_to_cpu(n
->u
.isp24
.nport_handle
);
1140 if (loop_id
== 0xFFFF) {
1142 atomic_inc(&vha
->vha_tgt
.qla_tgt
->tgt_global_resets_count
);
1143 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
1144 qlt_clear_tgt_db(vha
->vha_tgt
.qla_tgt
);
1145 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1147 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
1148 sess
= ha
->tgt
.tgt_ops
->find_sess_by_loop_id(vha
, loop_id
);
1149 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1152 ql_dbg(ql_dbg_tgt
, vha
, 0xe000,
1153 "Using sess for qla_tgt_reset: %p\n", sess
);
1159 ql_dbg(ql_dbg_tgt
, vha
, 0xe047,
1160 "scsi(%ld): resetting (session %p from port %8phC mcmd %x, "
1161 "loop_id %d)\n", vha
->host_no
, sess
, sess
->port_name
,
1164 return qlt_issue_task_mgmt(sess
, 0, mcmd
, iocb
, QLA24XX_MGMT_SEND_NACK
);
1167 static void qla24xx_chk_fcp_state(struct fc_port
*sess
)
1169 if (sess
->chip_reset
!= sess
->vha
->hw
->base_qpair
->chip_reset
) {
1170 sess
->logout_on_delete
= 0;
1171 sess
->logo_ack_needed
= 0;
1172 sess
->fw_login_state
= DSC_LS_PORT_UNAVAIL
;
1173 sess
->scan_state
= 0;
1177 /* ha->tgt.sess_lock supposed to be held on entry */
1178 void qlt_schedule_sess_for_deletion(struct fc_port
*sess
,
1181 struct qla_tgt
*tgt
= sess
->tgt
;
1183 if (sess
->disc_state
== DSC_DELETE_PEND
)
1186 if (sess
->disc_state
== DSC_DELETED
) {
1187 if (tgt
&& tgt
->tgt_stop
&& (tgt
->sess_count
== 0))
1188 wake_up_all(&tgt
->waitQ
);
1189 if (sess
->vha
->fcport_count
== 0)
1190 wake_up_all(&sess
->vha
->fcport_waitQ
);
1192 if (!sess
->plogi_link
[QLT_PLOGI_LINK_SAME_WWN
] &&
1193 !sess
->plogi_link
[QLT_PLOGI_LINK_CONFLICT
])
1197 sess
->disc_state
= DSC_DELETE_PEND
;
1199 if (sess
->deleted
== QLA_SESS_DELETED
)
1200 sess
->logout_on_delete
= 0;
1202 sess
->deleted
= QLA_SESS_DELETION_IN_PROGRESS
;
1203 qla24xx_chk_fcp_state(sess
);
1205 ql_dbg(ql_dbg_tgt
, sess
->vha
, 0xe001,
1206 "Scheduling sess %p for deletion\n", sess
);
1208 schedule_work(&sess
->del_work
);
1211 void qlt_schedule_sess_for_deletion_lock(struct fc_port
*sess
)
1213 unsigned long flags
;
1214 struct qla_hw_data
*ha
= sess
->vha
->hw
;
1215 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
1216 qlt_schedule_sess_for_deletion(sess
, 1);
1217 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1220 /* ha->tgt.sess_lock supposed to be held on entry */
1221 static void qlt_clear_tgt_db(struct qla_tgt
*tgt
)
1223 struct fc_port
*sess
;
1224 scsi_qla_host_t
*vha
= tgt
->vha
;
1226 list_for_each_entry(sess
, &vha
->vp_fcports
, list
) {
1228 qlt_schedule_sess_for_deletion(sess
, 1);
1231 /* At this point tgt could be already dead */
1234 static int qla24xx_get_loop_id(struct scsi_qla_host
*vha
, const uint8_t *s_id
,
1237 struct qla_hw_data
*ha
= vha
->hw
;
1238 dma_addr_t gid_list_dma
;
1239 struct gid_list_info
*gid_list
;
1244 gid_list
= dma_alloc_coherent(&ha
->pdev
->dev
, qla2x00_gid_list_size(ha
),
1245 &gid_list_dma
, GFP_KERNEL
);
1247 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf044,
1248 "qla_target(%d): DMA Alloc failed of %u\n",
1249 vha
->vp_idx
, qla2x00_gid_list_size(ha
));
1253 /* Get list of logged in devices */
1254 rc
= qla24xx_gidlist_wait(vha
, gid_list
, gid_list_dma
, &entries
);
1255 if (rc
!= QLA_SUCCESS
) {
1256 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf045,
1257 "qla_target(%d): get_id_list() failed: %x\n",
1260 goto out_free_id_list
;
1263 id_iter
= (char *)gid_list
;
1265 for (i
= 0; i
< entries
; i
++) {
1266 struct gid_list_info
*gid
= (struct gid_list_info
*)id_iter
;
1267 if ((gid
->al_pa
== s_id
[2]) &&
1268 (gid
->area
== s_id
[1]) &&
1269 (gid
->domain
== s_id
[0])) {
1270 *loop_id
= le16_to_cpu(gid
->loop_id
);
1274 id_iter
+= ha
->gid_list_info_size
;
1278 dma_free_coherent(&ha
->pdev
->dev
, qla2x00_gid_list_size(ha
),
1279 gid_list
, gid_list_dma
);
1284 * Adds an extra ref to allow to drop hw lock after adding sess to the list.
1285 * Caller must put it.
1287 static struct fc_port
*qlt_create_sess(
1288 struct scsi_qla_host
*vha
,
1292 struct qla_hw_data
*ha
= vha
->hw
;
1293 struct fc_port
*sess
= fcport
;
1294 unsigned long flags
;
1296 if (vha
->vha_tgt
.qla_tgt
->tgt_stop
)
1299 if (fcport
->se_sess
) {
1300 if (!kref_get_unless_zero(&sess
->sess_kref
)) {
1301 ql_dbg(ql_dbg_disc
, vha
, 0x20f6,
1302 "%s: kref_get_unless_zero failed for %8phC\n",
1303 __func__
, sess
->port_name
);
1308 sess
->tgt
= vha
->vha_tgt
.qla_tgt
;
1309 sess
->local
= local
;
1312 * Under normal circumstances we want to logout from firmware when
1313 * session eventually ends and release corresponding nport handle.
1314 * In the exception cases (e.g. when new PLOGI is waiting) corresponding
1315 * code will adjust these flags as necessary.
1317 sess
->logout_on_delete
= 1;
1318 sess
->keep_nport_handle
= 0;
1319 sess
->logout_completed
= 0;
1321 if (ha
->tgt
.tgt_ops
->check_initiator_node_acl(vha
,
1322 &fcport
->port_name
[0], sess
) < 0) {
1323 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf015,
1324 "(%d) %8phC check_initiator_node_acl failed\n",
1325 vha
->vp_idx
, fcport
->port_name
);
1328 kref_init(&fcport
->sess_kref
);
1330 * Take an extra reference to ->sess_kref here to handle
1331 * fc_port access across ->tgt.sess_lock reaquire.
1333 if (!kref_get_unless_zero(&sess
->sess_kref
)) {
1334 ql_dbg(ql_dbg_disc
, vha
, 0x20f7,
1335 "%s: kref_get_unless_zero failed for %8phC\n",
1336 __func__
, sess
->port_name
);
1340 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
1341 if (!IS_SW_RESV_ADDR(sess
->d_id
))
1342 vha
->vha_tgt
.qla_tgt
->sess_count
++;
1344 qlt_do_generation_tick(vha
, &sess
->generation
);
1345 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1348 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf006,
1349 "Adding sess %p se_sess %p to tgt %p sess_count %d\n",
1350 sess
, sess
->se_sess
, vha
->vha_tgt
.qla_tgt
,
1351 vha
->vha_tgt
.qla_tgt
->sess_count
);
1353 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf04b,
1354 "qla_target(%d): %ssession for wwn %8phC (loop_id %d, "
1355 "s_id %x:%x:%x, confirmed completion %ssupported) added\n",
1356 vha
->vp_idx
, local
? "local " : "", fcport
->port_name
,
1357 fcport
->loop_id
, sess
->d_id
.b
.domain
, sess
->d_id
.b
.area
,
1358 sess
->d_id
.b
.al_pa
, sess
->conf_compl_supported
? "" : "not ");
1364 * max_gen - specifies maximum session generation
1365 * at which this deletion requestion is still valid
1368 qlt_fc_port_deleted(struct scsi_qla_host
*vha
, fc_port_t
*fcport
, int max_gen
)
1370 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
1371 struct fc_port
*sess
= fcport
;
1372 unsigned long flags
;
1374 if (!vha
->hw
->tgt
.tgt_ops
)
1380 spin_lock_irqsave(&vha
->hw
->tgt
.sess_lock
, flags
);
1381 if (tgt
->tgt_stop
) {
1382 spin_unlock_irqrestore(&vha
->hw
->tgt
.sess_lock
, flags
);
1385 if (!sess
->se_sess
) {
1386 spin_unlock_irqrestore(&vha
->hw
->tgt
.sess_lock
, flags
);
1390 if (max_gen
- sess
->generation
< 0) {
1391 spin_unlock_irqrestore(&vha
->hw
->tgt
.sess_lock
, flags
);
1392 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf092,
1393 "Ignoring stale deletion request for se_sess %p / sess %p"
1394 " for port %8phC, req_gen %d, sess_gen %d\n",
1395 sess
->se_sess
, sess
, sess
->port_name
, max_gen
,
1400 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf008, "qla_tgt_fc_port_deleted %p", sess
);
1403 qlt_schedule_sess_for_deletion(sess
, false);
1404 spin_unlock_irqrestore(&vha
->hw
->tgt
.sess_lock
, flags
);
1407 static inline int test_tgt_sess_count(struct qla_tgt
*tgt
)
1409 struct qla_hw_data
*ha
= tgt
->ha
;
1410 unsigned long flags
;
1413 * We need to protect against race, when tgt is freed before or
1416 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
1417 ql_dbg(ql_dbg_tgt
, tgt
->vha
, 0xe002,
1418 "tgt %p, sess_count=%d\n",
1419 tgt
, tgt
->sess_count
);
1420 res
= (tgt
->sess_count
== 0);
1421 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1426 /* Called by tcm_qla2xxx configfs code */
1427 int qlt_stop_phase1(struct qla_tgt
*tgt
)
1429 struct scsi_qla_host
*vha
= tgt
->vha
;
1430 struct qla_hw_data
*ha
= tgt
->ha
;
1431 unsigned long flags
;
1433 mutex_lock(&qla_tgt_mutex
);
1434 if (!vha
->fc_vport
) {
1435 struct Scsi_Host
*sh
= vha
->host
;
1436 struct fc_host_attrs
*fc_host
= shost_to_fc_host(sh
);
1439 spin_lock_irqsave(sh
->host_lock
, flags
);
1440 npiv_vports
= (fc_host
->npiv_vports_inuse
);
1441 spin_unlock_irqrestore(sh
->host_lock
, flags
);
1444 mutex_unlock(&qla_tgt_mutex
);
1445 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf021,
1446 "NPIV is in use. Can not stop target\n");
1450 if (tgt
->tgt_stop
|| tgt
->tgt_stopped
) {
1451 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf04e,
1452 "Already in tgt->tgt_stop or tgt_stopped state\n");
1453 mutex_unlock(&qla_tgt_mutex
);
1457 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xe003, "Stopping target for host %ld(%p)\n",
1460 * Mutex needed to sync with qla_tgt_fc_port_[added,deleted].
1461 * Lock is needed, because we still can get an incoming packet.
1463 mutex_lock(&vha
->vha_tgt
.tgt_mutex
);
1464 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
1466 qlt_clear_tgt_db(tgt
);
1467 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1468 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
1469 mutex_unlock(&qla_tgt_mutex
);
1471 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf009,
1472 "Waiting for sess works (tgt %p)", tgt
);
1473 spin_lock_irqsave(&tgt
->sess_work_lock
, flags
);
1474 while (!list_empty(&tgt
->sess_works_list
)) {
1475 spin_unlock_irqrestore(&tgt
->sess_work_lock
, flags
);
1476 flush_scheduled_work();
1477 spin_lock_irqsave(&tgt
->sess_work_lock
, flags
);
1479 spin_unlock_irqrestore(&tgt
->sess_work_lock
, flags
);
1481 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf00a,
1482 "Waiting for tgt %p: sess_count=%d\n", tgt
, tgt
->sess_count
);
1484 wait_event_timeout(tgt
->waitQ
, test_tgt_sess_count(tgt
), 10*HZ
);
1487 if (!ha
->flags
.host_shutting_down
&&
1488 (qla_tgt_mode_enabled(vha
) || qla_dual_mode_enabled(vha
)))
1489 qlt_disable_vha(vha
);
1491 /* Wait for sessions to clear out (just in case) */
1492 wait_event_timeout(tgt
->waitQ
, test_tgt_sess_count(tgt
), 10*HZ
);
1495 EXPORT_SYMBOL(qlt_stop_phase1
);
1497 /* Called by tcm_qla2xxx configfs code */
1498 void qlt_stop_phase2(struct qla_tgt
*tgt
)
1500 scsi_qla_host_t
*vha
= tgt
->vha
;
1502 if (tgt
->tgt_stopped
) {
1503 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf04f,
1504 "Already in tgt->tgt_stopped state\n");
1508 if (!tgt
->tgt_stop
) {
1509 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf00b,
1510 "%s: phase1 stop is not completed\n", __func__
);
1515 mutex_lock(&vha
->vha_tgt
.tgt_mutex
);
1517 tgt
->tgt_stopped
= 1;
1518 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
1520 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf00c, "Stop of tgt %p finished\n",
1523 EXPORT_SYMBOL(qlt_stop_phase2
);
1525 /* Called from qlt_remove_target() -> qla2x00_remove_one() */
1526 static void qlt_release(struct qla_tgt
*tgt
)
1528 scsi_qla_host_t
*vha
= tgt
->vha
;
1532 struct qla_qpair_hint
*h
;
1533 struct qla_hw_data
*ha
= vha
->hw
;
1535 if ((vha
->vha_tgt
.qla_tgt
!= NULL
) && !tgt
->tgt_stop
&&
1537 qlt_stop_phase1(tgt
);
1539 if ((vha
->vha_tgt
.qla_tgt
!= NULL
) && !tgt
->tgt_stopped
)
1540 qlt_stop_phase2(tgt
);
1542 for (i
= 0; i
< vha
->hw
->max_qpairs
+ 1; i
++) {
1543 unsigned long flags
;
1545 h
= &tgt
->qphints
[i
];
1547 spin_lock_irqsave(h
->qpair
->qp_lock_ptr
, flags
);
1548 list_del(&h
->hint_elem
);
1549 spin_unlock_irqrestore(h
->qpair
->qp_lock_ptr
, flags
);
1553 kfree(tgt
->qphints
);
1554 mutex_lock(&qla_tgt_mutex
);
1555 list_del(&vha
->vha_tgt
.qla_tgt
->tgt_list_entry
);
1556 mutex_unlock(&qla_tgt_mutex
);
1558 btree_for_each_safe64(&tgt
->lun_qpair_map
, key
, node
)
1559 btree_remove64(&tgt
->lun_qpair_map
, key
);
1561 btree_destroy64(&tgt
->lun_qpair_map
);
1563 if (ha
->tgt
.tgt_ops
&& ha
->tgt
.tgt_ops
->remove_target
)
1564 ha
->tgt
.tgt_ops
->remove_target(vha
);
1566 vha
->vha_tgt
.qla_tgt
= NULL
;
1568 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf00d,
1569 "Release of tgt %p finished\n", tgt
);
1574 /* ha->hardware_lock supposed to be held on entry */
1575 static int qlt_sched_sess_work(struct qla_tgt
*tgt
, int type
,
1576 const void *param
, unsigned int param_size
)
1578 struct qla_tgt_sess_work_param
*prm
;
1579 unsigned long flags
;
1581 prm
= kzalloc(sizeof(*prm
), GFP_ATOMIC
);
1583 ql_dbg(ql_dbg_tgt_mgt
, tgt
->vha
, 0xf050,
1584 "qla_target(%d): Unable to create session "
1585 "work, command will be refused", 0);
1589 ql_dbg(ql_dbg_tgt_mgt
, tgt
->vha
, 0xf00e,
1590 "Scheduling work (type %d, prm %p)"
1591 " to find session for param %p (size %d, tgt %p)\n",
1592 type
, prm
, param
, param_size
, tgt
);
1595 memcpy(&prm
->tm_iocb
, param
, param_size
);
1597 spin_lock_irqsave(&tgt
->sess_work_lock
, flags
);
1598 list_add_tail(&prm
->sess_works_list_entry
, &tgt
->sess_works_list
);
1599 spin_unlock_irqrestore(&tgt
->sess_work_lock
, flags
);
1601 schedule_work(&tgt
->sess_work
);
1607 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1609 static void qlt_send_notify_ack(struct qla_qpair
*qpair
,
1610 struct imm_ntfy_from_isp
*ntfy
,
1611 uint32_t add_flags
, uint16_t resp_code
, int resp_code_valid
,
1612 uint16_t srr_flags
, uint16_t srr_reject_code
, uint8_t srr_explan
)
1614 struct scsi_qla_host
*vha
= qpair
->vha
;
1615 struct qla_hw_data
*ha
= vha
->hw
;
1617 struct nack_to_isp
*nack
;
1619 if (!ha
->flags
.fw_started
)
1622 ql_dbg(ql_dbg_tgt
, vha
, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha
);
1624 pkt
= (request_t
*)__qla2x00_alloc_iocbs(qpair
, NULL
);
1626 ql_dbg(ql_dbg_tgt
, vha
, 0xe049,
1627 "qla_target(%d): %s failed: unable to allocate "
1628 "request packet\n", vha
->vp_idx
, __func__
);
1632 if (vha
->vha_tgt
.qla_tgt
!= NULL
)
1633 vha
->vha_tgt
.qla_tgt
->notify_ack_expected
++;
1635 pkt
->entry_type
= NOTIFY_ACK_TYPE
;
1636 pkt
->entry_count
= 1;
1638 nack
= (struct nack_to_isp
*)pkt
;
1639 nack
->ox_id
= ntfy
->ox_id
;
1641 nack
->u
.isp24
.handle
= QLA_TGT_SKIP_HANDLE
;
1642 nack
->u
.isp24
.nport_handle
= ntfy
->u
.isp24
.nport_handle
;
1643 if (le16_to_cpu(ntfy
->u
.isp24
.status
) == IMM_NTFY_ELS
) {
1644 nack
->u
.isp24
.flags
= ntfy
->u
.isp24
.flags
&
1645 cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB
);
1647 nack
->u
.isp24
.srr_rx_id
= ntfy
->u
.isp24
.srr_rx_id
;
1648 nack
->u
.isp24
.status
= ntfy
->u
.isp24
.status
;
1649 nack
->u
.isp24
.status_subcode
= ntfy
->u
.isp24
.status_subcode
;
1650 nack
->u
.isp24
.fw_handle
= ntfy
->u
.isp24
.fw_handle
;
1651 nack
->u
.isp24
.exchange_address
= ntfy
->u
.isp24
.exchange_address
;
1652 nack
->u
.isp24
.srr_rel_offs
= ntfy
->u
.isp24
.srr_rel_offs
;
1653 nack
->u
.isp24
.srr_ui
= ntfy
->u
.isp24
.srr_ui
;
1654 nack
->u
.isp24
.srr_flags
= cpu_to_le16(srr_flags
);
1655 nack
->u
.isp24
.srr_reject_code
= srr_reject_code
;
1656 nack
->u
.isp24
.srr_reject_code_expl
= srr_explan
;
1657 nack
->u
.isp24
.vp_index
= ntfy
->u
.isp24
.vp_index
;
1659 ql_dbg(ql_dbg_tgt
, vha
, 0xe005,
1660 "qla_target(%d): Sending 24xx Notify Ack %d\n",
1661 vha
->vp_idx
, nack
->u
.isp24
.status
);
1663 /* Memory Barrier */
1665 qla2x00_start_iocbs(vha
, qpair
->req
);
1669 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1671 static void qlt_24xx_send_abts_resp(struct qla_qpair
*qpair
,
1672 struct abts_recv_from_24xx
*abts
, uint32_t status
,
1675 struct scsi_qla_host
*vha
= qpair
->vha
;
1676 struct qla_hw_data
*ha
= vha
->hw
;
1677 struct abts_resp_to_24xx
*resp
;
1681 ql_dbg(ql_dbg_tgt
, vha
, 0xe006,
1682 "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
1685 resp
= (struct abts_resp_to_24xx
*)qla2x00_alloc_iocbs_ready(qpair
,
1688 ql_dbg(ql_dbg_tgt
, vha
, 0xe04a,
1689 "qla_target(%d): %s failed: unable to allocate "
1690 "request packet", vha
->vp_idx
, __func__
);
1694 resp
->entry_type
= ABTS_RESP_24XX
;
1695 resp
->entry_count
= 1;
1696 resp
->nport_handle
= abts
->nport_handle
;
1697 resp
->vp_index
= vha
->vp_idx
;
1698 resp
->sof_type
= abts
->sof_type
;
1699 resp
->exchange_address
= abts
->exchange_address
;
1700 resp
->fcp_hdr_le
= abts
->fcp_hdr_le
;
1701 f_ctl
= cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP
|
1702 F_CTL_LAST_SEQ
| F_CTL_END_SEQ
|
1703 F_CTL_SEQ_INITIATIVE
);
1704 p
= (uint8_t *)&f_ctl
;
1705 resp
->fcp_hdr_le
.f_ctl
[0] = *p
++;
1706 resp
->fcp_hdr_le
.f_ctl
[1] = *p
++;
1707 resp
->fcp_hdr_le
.f_ctl
[2] = *p
;
1709 resp
->fcp_hdr_le
.d_id
[0] = abts
->fcp_hdr_le
.d_id
[0];
1710 resp
->fcp_hdr_le
.d_id
[1] = abts
->fcp_hdr_le
.d_id
[1];
1711 resp
->fcp_hdr_le
.d_id
[2] = abts
->fcp_hdr_le
.d_id
[2];
1712 resp
->fcp_hdr_le
.s_id
[0] = abts
->fcp_hdr_le
.s_id
[0];
1713 resp
->fcp_hdr_le
.s_id
[1] = abts
->fcp_hdr_le
.s_id
[1];
1714 resp
->fcp_hdr_le
.s_id
[2] = abts
->fcp_hdr_le
.s_id
[2];
1716 resp
->fcp_hdr_le
.d_id
[0] = abts
->fcp_hdr_le
.s_id
[0];
1717 resp
->fcp_hdr_le
.d_id
[1] = abts
->fcp_hdr_le
.s_id
[1];
1718 resp
->fcp_hdr_le
.d_id
[2] = abts
->fcp_hdr_le
.s_id
[2];
1719 resp
->fcp_hdr_le
.s_id
[0] = abts
->fcp_hdr_le
.d_id
[0];
1720 resp
->fcp_hdr_le
.s_id
[1] = abts
->fcp_hdr_le
.d_id
[1];
1721 resp
->fcp_hdr_le
.s_id
[2] = abts
->fcp_hdr_le
.d_id
[2];
1723 resp
->exchange_addr_to_abort
= abts
->exchange_addr_to_abort
;
1724 if (status
== FCP_TMF_CMPL
) {
1725 resp
->fcp_hdr_le
.r_ctl
= R_CTL_BASIC_LINK_SERV
| R_CTL_B_ACC
;
1726 resp
->payload
.ba_acct
.seq_id_valid
= SEQ_ID_INVALID
;
1727 resp
->payload
.ba_acct
.low_seq_cnt
= 0x0000;
1728 resp
->payload
.ba_acct
.high_seq_cnt
= 0xFFFF;
1729 resp
->payload
.ba_acct
.ox_id
= abts
->fcp_hdr_le
.ox_id
;
1730 resp
->payload
.ba_acct
.rx_id
= abts
->fcp_hdr_le
.rx_id
;
1732 resp
->fcp_hdr_le
.r_ctl
= R_CTL_BASIC_LINK_SERV
| R_CTL_B_RJT
;
1733 resp
->payload
.ba_rjt
.reason_code
=
1734 BA_RJT_REASON_CODE_UNABLE_TO_PERFORM
;
1735 /* Other bytes are zero */
1738 vha
->vha_tgt
.qla_tgt
->abts_resp_expected
++;
1740 /* Memory Barrier */
1742 if (qpair
->reqq_start_iocbs
)
1743 qpair
->reqq_start_iocbs(qpair
);
1745 qla2x00_start_iocbs(vha
, qpair
->req
);
1749 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1751 static void qlt_24xx_retry_term_exchange(struct scsi_qla_host
*vha
,
1752 struct abts_resp_from_24xx_fw
*entry
)
1754 struct ctio7_to_24xx
*ctio
;
1756 ql_dbg(ql_dbg_tgt
, vha
, 0xe007,
1757 "Sending retry TERM EXCH CTIO7 (ha=%p)\n", vha
->hw
);
1759 ctio
= (struct ctio7_to_24xx
*)qla2x00_alloc_iocbs_ready(
1760 vha
->hw
->base_qpair
, NULL
);
1762 ql_dbg(ql_dbg_tgt
, vha
, 0xe04b,
1763 "qla_target(%d): %s failed: unable to allocate "
1764 "request packet\n", vha
->vp_idx
, __func__
);
1769 * We've got on entrance firmware's response on by us generated
1770 * ABTS response. So, in it ID fields are reversed.
1773 ctio
->entry_type
= CTIO_TYPE7
;
1774 ctio
->entry_count
= 1;
1775 ctio
->nport_handle
= entry
->nport_handle
;
1776 ctio
->handle
= QLA_TGT_SKIP_HANDLE
| CTIO_COMPLETION_HANDLE_MARK
;
1777 ctio
->timeout
= cpu_to_le16(QLA_TGT_TIMEOUT
);
1778 ctio
->vp_index
= vha
->vp_idx
;
1779 ctio
->initiator_id
[0] = entry
->fcp_hdr_le
.d_id
[0];
1780 ctio
->initiator_id
[1] = entry
->fcp_hdr_le
.d_id
[1];
1781 ctio
->initiator_id
[2] = entry
->fcp_hdr_le
.d_id
[2];
1782 ctio
->exchange_addr
= entry
->exchange_addr_to_abort
;
1783 ctio
->u
.status1
.flags
= cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1
|
1784 CTIO7_FLAGS_TERMINATE
);
1785 ctio
->u
.status1
.ox_id
= cpu_to_le16(entry
->fcp_hdr_le
.ox_id
);
1787 /* Memory Barrier */
1789 qla2x00_start_iocbs(vha
, vha
->req
);
1791 qlt_24xx_send_abts_resp(vha
->hw
->base_qpair
,
1792 (struct abts_recv_from_24xx
*)entry
,
1793 FCP_TMF_CMPL
, true);
1796 static int abort_cmd_for_tag(struct scsi_qla_host
*vha
, uint32_t tag
)
1798 struct qla_tgt_sess_op
*op
;
1799 struct qla_tgt_cmd
*cmd
;
1800 unsigned long flags
;
1802 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
1803 list_for_each_entry(op
, &vha
->qla_sess_op_cmd_list
, cmd_list
) {
1804 if (tag
== op
->atio
.u
.isp24
.exchange_addr
) {
1806 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
1811 list_for_each_entry(op
, &vha
->unknown_atio_list
, cmd_list
) {
1812 if (tag
== op
->atio
.u
.isp24
.exchange_addr
) {
1814 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
1819 list_for_each_entry(cmd
, &vha
->qla_cmd_list
, cmd_list
) {
1820 if (tag
== cmd
->atio
.u
.isp24
.exchange_addr
) {
1822 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
1826 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
1831 /* drop cmds for the given lun
1832 * XXX only looks for cmds on the port through which lun reset was recieved
1833 * XXX does not go through the list of other port (which may have cmds
1836 static void abort_cmds_for_lun(struct scsi_qla_host
*vha
,
1837 u64 lun
, uint8_t *s_id
)
1839 struct qla_tgt_sess_op
*op
;
1840 struct qla_tgt_cmd
*cmd
;
1842 unsigned long flags
;
1844 key
= sid_to_key(s_id
);
1845 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
1846 list_for_each_entry(op
, &vha
->qla_sess_op_cmd_list
, cmd_list
) {
1850 op_key
= sid_to_key(op
->atio
.u
.isp24
.fcp_hdr
.s_id
);
1851 op_lun
= scsilun_to_int(
1852 (struct scsi_lun
*)&op
->atio
.u
.isp24
.fcp_cmnd
.lun
);
1853 if (op_key
== key
&& op_lun
== lun
)
1857 list_for_each_entry(op
, &vha
->unknown_atio_list
, cmd_list
) {
1861 op_key
= sid_to_key(op
->atio
.u
.isp24
.fcp_hdr
.s_id
);
1862 op_lun
= scsilun_to_int(
1863 (struct scsi_lun
*)&op
->atio
.u
.isp24
.fcp_cmnd
.lun
);
1864 if (op_key
== key
&& op_lun
== lun
)
1868 list_for_each_entry(cmd
, &vha
->qla_cmd_list
, cmd_list
) {
1872 cmd_key
= sid_to_key(cmd
->atio
.u
.isp24
.fcp_hdr
.s_id
);
1873 cmd_lun
= scsilun_to_int(
1874 (struct scsi_lun
*)&cmd
->atio
.u
.isp24
.fcp_cmnd
.lun
);
1875 if (cmd_key
== key
&& cmd_lun
== lun
)
1878 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
1881 /* ha->hardware_lock supposed to be held on entry */
1882 static int __qlt_24xx_handle_abts(struct scsi_qla_host
*vha
,
1883 struct abts_recv_from_24xx
*abts
, struct fc_port
*sess
)
1885 struct qla_hw_data
*ha
= vha
->hw
;
1886 struct qla_tgt_mgmt_cmd
*mcmd
;
1889 if (abort_cmd_for_tag(vha
, abts
->exchange_addr_to_abort
)) {
1890 /* send TASK_ABORT response immediately */
1891 qlt_24xx_send_abts_resp(ha
->base_qpair
, abts
, FCP_TMF_CMPL
, false);
1895 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf00f,
1896 "qla_target(%d): task abort (tag=%d)\n",
1897 vha
->vp_idx
, abts
->exchange_addr_to_abort
);
1899 mcmd
= mempool_alloc(qla_tgt_mgmt_cmd_mempool
, GFP_ATOMIC
);
1901 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf051,
1902 "qla_target(%d): %s: Allocation of ABORT cmd failed",
1903 vha
->vp_idx
, __func__
);
1906 memset(mcmd
, 0, sizeof(*mcmd
));
1909 memcpy(&mcmd
->orig_iocb
.abts
, abts
, sizeof(mcmd
->orig_iocb
.abts
));
1910 mcmd
->reset_count
= ha
->base_qpair
->chip_reset
;
1911 mcmd
->tmr_func
= QLA_TGT_ABTS
;
1912 mcmd
->qpair
= ha
->base_qpair
;
1916 * LUN is looked up by target-core internally based on the passed
1917 * abts->exchange_addr_to_abort tag.
1919 rc
= ha
->tgt
.tgt_ops
->handle_tmr(mcmd
, 0, mcmd
->tmr_func
,
1920 abts
->exchange_addr_to_abort
);
1922 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf052,
1923 "qla_target(%d): tgt_ops->handle_tmr()"
1924 " failed: %d", vha
->vp_idx
, rc
);
1925 mempool_free(mcmd
, qla_tgt_mgmt_cmd_mempool
);
1933 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
1935 static void qlt_24xx_handle_abts(struct scsi_qla_host
*vha
,
1936 struct abts_recv_from_24xx
*abts
)
1938 struct qla_hw_data
*ha
= vha
->hw
;
1939 struct fc_port
*sess
;
1940 uint32_t tag
= abts
->exchange_addr_to_abort
;
1943 unsigned long flags
;
1945 if (le32_to_cpu(abts
->fcp_hdr_le
.parameter
) & ABTS_PARAM_ABORT_SEQ
) {
1946 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf053,
1947 "qla_target(%d): ABTS: Abort Sequence not "
1948 "supported\n", vha
->vp_idx
);
1949 qlt_24xx_send_abts_resp(ha
->base_qpair
, abts
, FCP_TMF_REJECTED
,
1954 if (tag
== ATIO_EXCHANGE_ADDRESS_UNKNOWN
) {
1955 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf010,
1956 "qla_target(%d): ABTS: Unknown Exchange "
1957 "Address received\n", vha
->vp_idx
);
1958 qlt_24xx_send_abts_resp(ha
->base_qpair
, abts
, FCP_TMF_REJECTED
,
1963 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf011,
1964 "qla_target(%d): task abort (s_id=%x:%x:%x, "
1965 "tag=%d, param=%x)\n", vha
->vp_idx
, abts
->fcp_hdr_le
.s_id
[2],
1966 abts
->fcp_hdr_le
.s_id
[1], abts
->fcp_hdr_le
.s_id
[0], tag
,
1967 le32_to_cpu(abts
->fcp_hdr_le
.parameter
));
1969 s_id
[0] = abts
->fcp_hdr_le
.s_id
[2];
1970 s_id
[1] = abts
->fcp_hdr_le
.s_id
[1];
1971 s_id
[2] = abts
->fcp_hdr_le
.s_id
[0];
1973 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
1974 sess
= ha
->tgt
.tgt_ops
->find_sess_by_s_id(vha
, s_id
);
1976 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf012,
1977 "qla_target(%d): task abort for non-existant session\n",
1979 rc
= qlt_sched_sess_work(vha
->vha_tgt
.qla_tgt
,
1980 QLA_TGT_SESS_WORK_ABORT
, abts
, sizeof(*abts
));
1982 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1985 qlt_24xx_send_abts_resp(ha
->base_qpair
, abts
,
1986 FCP_TMF_REJECTED
, false);
1990 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
1993 if (sess
->deleted
) {
1994 qlt_24xx_send_abts_resp(ha
->base_qpair
, abts
, FCP_TMF_REJECTED
,
1999 rc
= __qlt_24xx_handle_abts(vha
, abts
, sess
);
2001 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf054,
2002 "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
2004 qlt_24xx_send_abts_resp(ha
->base_qpair
, abts
, FCP_TMF_REJECTED
,
2011 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2013 static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair
*qpair
,
2014 struct qla_tgt_mgmt_cmd
*mcmd
, uint32_t resp_code
)
2016 struct scsi_qla_host
*ha
= mcmd
->vha
;
2017 struct atio_from_isp
*atio
= &mcmd
->orig_iocb
.atio
;
2018 struct ctio7_to_24xx
*ctio
;
2021 ql_dbg(ql_dbg_tgt
, ha
, 0xe008,
2022 "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n",
2023 ha
, atio
, resp_code
);
2026 ctio
= (struct ctio7_to_24xx
*)__qla2x00_alloc_iocbs(qpair
, NULL
);
2028 ql_dbg(ql_dbg_tgt
, ha
, 0xe04c,
2029 "qla_target(%d): %s failed: unable to allocate "
2030 "request packet\n", ha
->vp_idx
, __func__
);
2034 ctio
->entry_type
= CTIO_TYPE7
;
2035 ctio
->entry_count
= 1;
2036 ctio
->handle
= QLA_TGT_SKIP_HANDLE
| CTIO_COMPLETION_HANDLE_MARK
;
2037 ctio
->nport_handle
= mcmd
->sess
->loop_id
;
2038 ctio
->timeout
= cpu_to_le16(QLA_TGT_TIMEOUT
);
2039 ctio
->vp_index
= ha
->vp_idx
;
2040 ctio
->initiator_id
[0] = atio
->u
.isp24
.fcp_hdr
.s_id
[2];
2041 ctio
->initiator_id
[1] = atio
->u
.isp24
.fcp_hdr
.s_id
[1];
2042 ctio
->initiator_id
[2] = atio
->u
.isp24
.fcp_hdr
.s_id
[0];
2043 ctio
->exchange_addr
= atio
->u
.isp24
.exchange_addr
;
2044 temp
= (atio
->u
.isp24
.attr
<< 9)|
2045 CTIO7_FLAGS_STATUS_MODE_1
| CTIO7_FLAGS_SEND_STATUS
;
2046 ctio
->u
.status1
.flags
= cpu_to_le16(temp
);
2047 temp
= be16_to_cpu(atio
->u
.isp24
.fcp_hdr
.ox_id
);
2048 ctio
->u
.status1
.ox_id
= cpu_to_le16(temp
);
2049 ctio
->u
.status1
.scsi_status
=
2050 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID
);
2051 ctio
->u
.status1
.response_len
= cpu_to_le16(8);
2052 ctio
->u
.status1
.sense_data
[0] = resp_code
;
2054 /* Memory Barrier */
2056 if (qpair
->reqq_start_iocbs
)
2057 qpair
->reqq_start_iocbs(qpair
);
2059 qla2x00_start_iocbs(ha
, qpair
->req
);
2062 void qlt_free_mcmd(struct qla_tgt_mgmt_cmd
*mcmd
)
2064 mempool_free(mcmd
, qla_tgt_mgmt_cmd_mempool
);
2066 EXPORT_SYMBOL(qlt_free_mcmd
);
2069 * ha->hardware_lock supposed to be held on entry. Might drop it, then
2072 void qlt_send_resp_ctio(struct qla_qpair
*qpair
, struct qla_tgt_cmd
*cmd
,
2073 uint8_t scsi_status
, uint8_t sense_key
, uint8_t asc
, uint8_t ascq
)
2075 struct atio_from_isp
*atio
= &cmd
->atio
;
2076 struct ctio7_to_24xx
*ctio
;
2078 struct scsi_qla_host
*vha
= cmd
->vha
;
2080 ql_dbg(ql_dbg_tgt_dif
, vha
, 0x3066,
2081 "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, "
2082 "sense_key=%02x, asc=%02x, ascq=%02x",
2083 vha
, atio
, scsi_status
, sense_key
, asc
, ascq
);
2085 ctio
= (struct ctio7_to_24xx
*)qla2x00_alloc_iocbs(vha
, NULL
);
2087 ql_dbg(ql_dbg_async
, vha
, 0x3067,
2088 "qla2x00t(%ld): %s failed: unable to allocate request packet",
2089 vha
->host_no
, __func__
);
2093 ctio
->entry_type
= CTIO_TYPE7
;
2094 ctio
->entry_count
= 1;
2095 ctio
->handle
= QLA_TGT_SKIP_HANDLE
;
2096 ctio
->nport_handle
= cmd
->sess
->loop_id
;
2097 ctio
->timeout
= cpu_to_le16(QLA_TGT_TIMEOUT
);
2098 ctio
->vp_index
= vha
->vp_idx
;
2099 ctio
->initiator_id
[0] = atio
->u
.isp24
.fcp_hdr
.s_id
[2];
2100 ctio
->initiator_id
[1] = atio
->u
.isp24
.fcp_hdr
.s_id
[1];
2101 ctio
->initiator_id
[2] = atio
->u
.isp24
.fcp_hdr
.s_id
[0];
2102 ctio
->exchange_addr
= atio
->u
.isp24
.exchange_addr
;
2103 temp
= (atio
->u
.isp24
.attr
<< 9) |
2104 CTIO7_FLAGS_STATUS_MODE_1
| CTIO7_FLAGS_SEND_STATUS
;
2105 ctio
->u
.status1
.flags
= cpu_to_le16(temp
);
2106 temp
= be16_to_cpu(atio
->u
.isp24
.fcp_hdr
.ox_id
);
2107 ctio
->u
.status1
.ox_id
= cpu_to_le16(temp
);
2108 ctio
->u
.status1
.scsi_status
=
2109 cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID
| scsi_status
);
2110 ctio
->u
.status1
.response_len
= cpu_to_le16(18);
2111 ctio
->u
.status1
.residual
= cpu_to_le32(get_datalen_for_atio(atio
));
2113 if (ctio
->u
.status1
.residual
!= 0)
2114 ctio
->u
.status1
.scsi_status
|=
2115 cpu_to_le16(SS_RESIDUAL_UNDER
);
2117 /* Response code and sense key */
2118 put_unaligned_le32(((0x70 << 24) | (sense_key
<< 8)),
2119 (&ctio
->u
.status1
.sense_data
)[0]);
2120 /* Additional sense length */
2121 put_unaligned_le32(0x0a, (&ctio
->u
.status1
.sense_data
)[1]);
2123 put_unaligned_le32(((asc
<< 24) | (ascq
<< 16)),
2124 (&ctio
->u
.status1
.sense_data
)[3]);
2126 /* Memory Barrier */
2129 if (qpair
->reqq_start_iocbs
)
2130 qpair
->reqq_start_iocbs(qpair
);
2132 qla2x00_start_iocbs(vha
, qpair
->req
);
2138 /* callback from target fabric module code */
2139 void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd
*mcmd
)
2141 struct scsi_qla_host
*vha
= mcmd
->sess
->vha
;
2142 struct qla_hw_data
*ha
= vha
->hw
;
2143 unsigned long flags
;
2144 struct qla_qpair
*qpair
= mcmd
->qpair
;
2146 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf013,
2147 "TM response mcmd (%p) status %#x state %#x",
2148 mcmd
, mcmd
->fc_tm_rsp
, mcmd
->flags
);
2150 spin_lock_irqsave(qpair
->qp_lock_ptr
, flags
);
2152 if (!vha
->flags
.online
|| mcmd
->reset_count
!= qpair
->chip_reset
) {
2154 * Either the port is not online or this request was from
2155 * previous life, just abort the processing.
2157 ql_dbg(ql_dbg_async
, vha
, 0xe100,
2158 "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n",
2159 vha
->flags
.online
, qla2x00_reset_active(vha
),
2160 mcmd
->reset_count
, qpair
->chip_reset
);
2161 ha
->tgt
.tgt_ops
->free_mcmd(mcmd
);
2162 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
2166 if (mcmd
->flags
== QLA24XX_MGMT_SEND_NACK
) {
2167 if (mcmd
->orig_iocb
.imm_ntfy
.u
.isp24
.status_subcode
==
2169 mcmd
->orig_iocb
.imm_ntfy
.u
.isp24
.status_subcode
==
2171 mcmd
->orig_iocb
.imm_ntfy
.u
.isp24
.status_subcode
==
2173 ql_dbg(ql_dbg_disc
, vha
, 0x2106,
2174 "TM response logo %phC status %#x state %#x",
2175 mcmd
->sess
->port_name
, mcmd
->fc_tm_rsp
,
2177 qlt_schedule_sess_for_deletion_lock(mcmd
->sess
);
2179 qlt_send_notify_ack(vha
->hw
->base_qpair
,
2180 &mcmd
->orig_iocb
.imm_ntfy
, 0, 0, 0, 0, 0, 0);
2183 if (mcmd
->orig_iocb
.atio
.u
.raw
.entry_type
== ABTS_RECV_24XX
)
2184 qlt_24xx_send_abts_resp(qpair
, &mcmd
->orig_iocb
.abts
,
2185 mcmd
->fc_tm_rsp
, false);
2187 qlt_24xx_send_task_mgmt_ctio(qpair
, mcmd
,
2191 * Make the callback for ->free_mcmd() to queue_work() and invoke
2192 * target_put_sess_cmd() to drop cmd_kref to 1. The final
2193 * target_put_sess_cmd() call will be made from TFO->check_stop_free()
2194 * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd
2195 * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() ->
2196 * qlt_xmit_tm_rsp() returns here..
2198 ha
->tgt
.tgt_ops
->free_mcmd(mcmd
);
2199 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
2201 EXPORT_SYMBOL(qlt_xmit_tm_rsp
);
2204 static int qlt_pci_map_calc_cnt(struct qla_tgt_prm
*prm
)
2206 struct qla_tgt_cmd
*cmd
= prm
->cmd
;
2208 BUG_ON(cmd
->sg_cnt
== 0);
2210 prm
->sg
= (struct scatterlist
*)cmd
->sg
;
2211 prm
->seg_cnt
= pci_map_sg(cmd
->qpair
->pdev
, cmd
->sg
,
2212 cmd
->sg_cnt
, cmd
->dma_data_direction
);
2213 if (unlikely(prm
->seg_cnt
== 0))
2216 prm
->cmd
->sg_mapped
= 1;
2218 if (cmd
->se_cmd
.prot_op
== TARGET_PROT_NORMAL
) {
2220 * If greater than four sg entries then we need to allocate
2221 * the continuation entries
2223 if (prm
->seg_cnt
> QLA_TGT_DATASEGS_PER_CMD_24XX
)
2224 prm
->req_cnt
+= DIV_ROUND_UP(prm
->seg_cnt
-
2225 QLA_TGT_DATASEGS_PER_CMD_24XX
,
2226 QLA_TGT_DATASEGS_PER_CONT_24XX
);
2229 if ((cmd
->se_cmd
.prot_op
== TARGET_PROT_DIN_INSERT
) ||
2230 (cmd
->se_cmd
.prot_op
== TARGET_PROT_DOUT_STRIP
)) {
2231 prm
->seg_cnt
= DIV_ROUND_UP(cmd
->bufflen
, cmd
->blk_sz
);
2232 prm
->tot_dsds
= prm
->seg_cnt
;
2234 prm
->tot_dsds
= prm
->seg_cnt
;
2236 if (cmd
->prot_sg_cnt
) {
2237 prm
->prot_sg
= cmd
->prot_sg
;
2238 prm
->prot_seg_cnt
= pci_map_sg(cmd
->qpair
->pdev
,
2239 cmd
->prot_sg
, cmd
->prot_sg_cnt
,
2240 cmd
->dma_data_direction
);
2241 if (unlikely(prm
->prot_seg_cnt
== 0))
2244 if ((cmd
->se_cmd
.prot_op
== TARGET_PROT_DIN_INSERT
) ||
2245 (cmd
->se_cmd
.prot_op
== TARGET_PROT_DOUT_STRIP
)) {
2246 /* Dif Bundling not support here */
2247 prm
->prot_seg_cnt
= DIV_ROUND_UP(cmd
->bufflen
,
2249 prm
->tot_dsds
+= prm
->prot_seg_cnt
;
2251 prm
->tot_dsds
+= prm
->prot_seg_cnt
;
2258 ql_dbg_qp(ql_dbg_tgt
, prm
->cmd
->qpair
, 0xe04d,
2259 "qla_target(%d): PCI mapping failed: sg_cnt=%d",
2260 0, prm
->cmd
->sg_cnt
);
2264 static void qlt_unmap_sg(struct scsi_qla_host
*vha
, struct qla_tgt_cmd
*cmd
)
2266 struct qla_hw_data
*ha
;
2267 struct qla_qpair
*qpair
;
2268 if (!cmd
->sg_mapped
)
2273 pci_unmap_sg(qpair
->pdev
, cmd
->sg
, cmd
->sg_cnt
,
2274 cmd
->dma_data_direction
);
2277 if (cmd
->prot_sg_cnt
)
2278 pci_unmap_sg(qpair
->pdev
, cmd
->prot_sg
, cmd
->prot_sg_cnt
,
2279 cmd
->dma_data_direction
);
2284 if (cmd
->ctx_dsd_alloced
)
2285 qla2x00_clean_dsd_pool(ha
, cmd
->ctx
);
2287 dma_pool_free(ha
->dl_dma_pool
, cmd
->ctx
, cmd
->ctx
->crc_ctx_dma
);
2290 static int qlt_check_reserve_free_req(struct qla_qpair
*qpair
,
2294 struct req_que
*req
= qpair
->req
;
2296 if (req
->cnt
< (req_cnt
+ 2)) {
2297 cnt
= (uint16_t)(qpair
->use_shadow_reg
? *req
->out_ptr
:
2298 RD_REG_DWORD_RELAXED(req
->req_q_out
));
2300 if (req
->ring_index
< cnt
)
2301 req
->cnt
= cnt
- req
->ring_index
;
2303 req
->cnt
= req
->length
- (req
->ring_index
- cnt
);
2305 if (unlikely(req
->cnt
< (req_cnt
+ 2)))
2309 req
->cnt
-= req_cnt
;
2315 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
2317 static inline void *qlt_get_req_pkt(struct req_que
*req
)
2319 /* Adjust ring index. */
2321 if (req
->ring_index
== req
->length
) {
2322 req
->ring_index
= 0;
2323 req
->ring_ptr
= req
->ring
;
2327 return (cont_entry_t
*)req
->ring_ptr
;
2330 /* ha->hardware_lock supposed to be held on entry */
2331 static inline uint32_t qlt_make_handle(struct qla_qpair
*qpair
)
2336 struct req_que
*req
= qpair
->req
;
2338 h
= req
->current_outstanding_cmd
;
2340 for (index
= 1; index
< req
->num_outstanding_cmds
; index
++) {
2342 if (h
== req
->num_outstanding_cmds
)
2345 if (h
== QLA_TGT_SKIP_HANDLE
)
2348 if (!req
->outstanding_cmds
[h
]) {
2355 req
->current_outstanding_cmd
= h
;
2357 ql_dbg(ql_dbg_io
, qpair
->vha
, 0x305b,
2358 "qla_target(%d): Ran out of empty cmd slots\n",
2359 qpair
->vha
->vp_idx
);
2360 h
= QLA_TGT_NULL_HANDLE
;
2366 /* ha->hardware_lock supposed to be held on entry */
2367 static int qlt_24xx_build_ctio_pkt(struct qla_qpair
*qpair
,
2368 struct qla_tgt_prm
*prm
)
2371 struct ctio7_to_24xx
*pkt
;
2372 struct atio_from_isp
*atio
= &prm
->cmd
->atio
;
2375 pkt
= (struct ctio7_to_24xx
*)qpair
->req
->ring_ptr
;
2377 memset(pkt
, 0, sizeof(*pkt
));
2379 pkt
->entry_type
= CTIO_TYPE7
;
2380 pkt
->entry_count
= (uint8_t)prm
->req_cnt
;
2381 pkt
->vp_index
= prm
->cmd
->vp_idx
;
2383 h
= qlt_make_handle(qpair
);
2384 if (unlikely(h
== QLA_TGT_NULL_HANDLE
)) {
2386 * CTIO type 7 from the firmware doesn't provide a way to
2387 * know the initiator's LOOP ID, hence we can't find
2388 * the session and, so, the command.
2392 qpair
->req
->outstanding_cmds
[h
] = (srb_t
*)prm
->cmd
;
2394 pkt
->handle
= MAKE_HANDLE(qpair
->req
->id
, h
);
2395 pkt
->handle
|= CTIO_COMPLETION_HANDLE_MARK
;
2396 pkt
->nport_handle
= cpu_to_le16(prm
->cmd
->loop_id
);
2397 pkt
->timeout
= cpu_to_le16(QLA_TGT_TIMEOUT
);
2398 pkt
->initiator_id
[0] = atio
->u
.isp24
.fcp_hdr
.s_id
[2];
2399 pkt
->initiator_id
[1] = atio
->u
.isp24
.fcp_hdr
.s_id
[1];
2400 pkt
->initiator_id
[2] = atio
->u
.isp24
.fcp_hdr
.s_id
[0];
2401 pkt
->exchange_addr
= atio
->u
.isp24
.exchange_addr
;
2402 temp
= atio
->u
.isp24
.attr
<< 9;
2403 pkt
->u
.status0
.flags
|= cpu_to_le16(temp
);
2404 temp
= be16_to_cpu(atio
->u
.isp24
.fcp_hdr
.ox_id
);
2405 pkt
->u
.status0
.ox_id
= cpu_to_le16(temp
);
2406 pkt
->u
.status0
.relative_offset
= cpu_to_le32(prm
->cmd
->offset
);
2412 * ha->hardware_lock supposed to be held on entry. We have already made sure
2413 * that there is sufficient amount of request entries to not drop it.
2415 static void qlt_load_cont_data_segments(struct qla_tgt_prm
*prm
)
2418 uint32_t *dword_ptr
;
2420 /* Build continuation packets */
2421 while (prm
->seg_cnt
> 0) {
2422 cont_a64_entry_t
*cont_pkt64
=
2423 (cont_a64_entry_t
*)qlt_get_req_pkt(
2424 prm
->cmd
->qpair
->req
);
2427 * Make sure that from cont_pkt64 none of
2428 * 64-bit specific fields used for 32-bit
2429 * addressing. Cast to (cont_entry_t *) for
2433 memset(cont_pkt64
, 0, sizeof(*cont_pkt64
));
2435 cont_pkt64
->entry_count
= 1;
2436 cont_pkt64
->sys_define
= 0;
2438 cont_pkt64
->entry_type
= CONTINUE_A64_TYPE
;
2439 dword_ptr
= (uint32_t *)&cont_pkt64
->dseg_0_address
;
2441 /* Load continuation entry data segments */
2443 cnt
< QLA_TGT_DATASEGS_PER_CONT_24XX
&& prm
->seg_cnt
;
2444 cnt
++, prm
->seg_cnt
--) {
2446 cpu_to_le32(pci_dma_lo32
2447 (sg_dma_address(prm
->sg
)));
2448 *dword_ptr
++ = cpu_to_le32(pci_dma_hi32
2449 (sg_dma_address(prm
->sg
)));
2450 *dword_ptr
++ = cpu_to_le32(sg_dma_len(prm
->sg
));
2452 prm
->sg
= sg_next(prm
->sg
);
2458 * ha->hardware_lock supposed to be held on entry. We have already made sure
2459 * that there is sufficient amount of request entries to not drop it.
2461 static void qlt_load_data_segments(struct qla_tgt_prm
*prm
)
2464 uint32_t *dword_ptr
;
2465 struct ctio7_to_24xx
*pkt24
= (struct ctio7_to_24xx
*)prm
->pkt
;
2467 pkt24
->u
.status0
.transfer_length
= cpu_to_le32(prm
->cmd
->bufflen
);
2469 /* Setup packet address segment pointer */
2470 dword_ptr
= pkt24
->u
.status0
.dseg_0_address
;
2472 /* Set total data segment count */
2474 pkt24
->dseg_count
= cpu_to_le16(prm
->seg_cnt
);
2476 if (prm
->seg_cnt
== 0) {
2477 /* No data transfer */
2483 /* If scatter gather */
2485 /* Load command entry data segments */
2487 (cnt
< QLA_TGT_DATASEGS_PER_CMD_24XX
) && prm
->seg_cnt
;
2488 cnt
++, prm
->seg_cnt
--) {
2490 cpu_to_le32(pci_dma_lo32(sg_dma_address(prm
->sg
)));
2492 *dword_ptr
++ = cpu_to_le32(pci_dma_hi32(
2493 sg_dma_address(prm
->sg
)));
2495 *dword_ptr
++ = cpu_to_le32(sg_dma_len(prm
->sg
));
2497 prm
->sg
= sg_next(prm
->sg
);
2500 qlt_load_cont_data_segments(prm
);
2503 static inline int qlt_has_data(struct qla_tgt_cmd
*cmd
)
2505 return cmd
->bufflen
> 0;
2508 static void qlt_print_dif_err(struct qla_tgt_prm
*prm
)
2510 struct qla_tgt_cmd
*cmd
;
2511 struct scsi_qla_host
*vha
;
2513 /* asc 0x10=dif error */
2514 if (prm
->sense_buffer
&& (prm
->sense_buffer
[12] == 0x10)) {
2518 switch (prm
->sense_buffer
[13]) {
2520 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xe00b,
2521 "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2522 "se_cmd=%p tag[%x]",
2523 cmd
->lba
, cmd
->lba
, cmd
->num_blks
, &cmd
->se_cmd
,
2524 cmd
->atio
.u
.isp24
.exchange_addr
);
2527 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xe00c,
2528 "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2529 "se_cmd=%p tag[%x]",
2530 cmd
->lba
, cmd
->lba
, cmd
->num_blks
, &cmd
->se_cmd
,
2531 cmd
->atio
.u
.isp24
.exchange_addr
);
2534 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xe00f,
2535 "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] "
2536 "se_cmd=%p tag[%x]",
2537 cmd
->lba
, cmd
->lba
, cmd
->num_blks
, &cmd
->se_cmd
,
2538 cmd
->atio
.u
.isp24
.exchange_addr
);
2541 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xe010,
2542 "BE detected Dif ERR: lba[%llx|%lld] len[%x] "
2543 "se_cmd=%p tag[%x]",
2544 cmd
->lba
, cmd
->lba
, cmd
->num_blks
, &cmd
->se_cmd
,
2545 cmd
->atio
.u
.isp24
.exchange_addr
);
2548 ql_dump_buffer(ql_dbg_tgt_dif
, vha
, 0xe011, cmd
->cdb
, 16);
2553 * Called without ha->hardware_lock held
2555 static int qlt_pre_xmit_response(struct qla_tgt_cmd
*cmd
,
2556 struct qla_tgt_prm
*prm
, int xmit_type
, uint8_t scsi_status
,
2557 uint32_t *full_req_cnt
)
2559 struct se_cmd
*se_cmd
= &cmd
->se_cmd
;
2560 struct qla_qpair
*qpair
= cmd
->qpair
;
2563 prm
->tgt
= cmd
->tgt
;
2565 prm
->rq_result
= scsi_status
;
2566 prm
->sense_buffer
= &cmd
->sense_buffer
[0];
2567 prm
->sense_buffer_len
= TRANSPORT_SENSE_BUFFER
;
2572 prm
->add_status_pkt
= 0;
2573 prm
->prot_sg
= NULL
;
2574 prm
->prot_seg_cnt
= 0;
2577 if ((xmit_type
& QLA_TGT_XMIT_DATA
) && qlt_has_data(cmd
)) {
2578 if (qlt_pci_map_calc_cnt(prm
) != 0)
2582 *full_req_cnt
= prm
->req_cnt
;
2584 if (se_cmd
->se_cmd_flags
& SCF_UNDERFLOW_BIT
) {
2585 prm
->residual
= se_cmd
->residual_count
;
2586 ql_dbg_qp(ql_dbg_io
+ ql_dbg_verbose
, qpair
, 0x305c,
2587 "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2588 prm
->residual
, se_cmd
->tag
,
2589 se_cmd
->t_task_cdb
? se_cmd
->t_task_cdb
[0] : 0,
2590 cmd
->bufflen
, prm
->rq_result
);
2591 prm
->rq_result
|= SS_RESIDUAL_UNDER
;
2592 } else if (se_cmd
->se_cmd_flags
& SCF_OVERFLOW_BIT
) {
2593 prm
->residual
= se_cmd
->residual_count
;
2594 ql_dbg_qp(ql_dbg_io
, qpair
, 0x305d,
2595 "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
2596 prm
->residual
, se_cmd
->tag
, se_cmd
->t_task_cdb
?
2597 se_cmd
->t_task_cdb
[0] : 0, cmd
->bufflen
, prm
->rq_result
);
2598 prm
->rq_result
|= SS_RESIDUAL_OVER
;
2601 if (xmit_type
& QLA_TGT_XMIT_STATUS
) {
2603 * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be
2604 * ignored in *xmit_response() below
2606 if (qlt_has_data(cmd
)) {
2607 if (QLA_TGT_SENSE_VALID(prm
->sense_buffer
) ||
2608 (IS_FWI2_CAPABLE(cmd
->vha
->hw
) &&
2609 (prm
->rq_result
!= 0))) {
2610 prm
->add_status_pkt
= 1;
2619 static inline int qlt_need_explicit_conf(struct qla_tgt_cmd
*cmd
,
2622 if (cmd
->qpair
->enable_class_2
)
2626 return cmd
->conf_compl_supported
;
2628 return cmd
->qpair
->enable_explicit_conf
&&
2629 cmd
->conf_compl_supported
;
2632 static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx
*ctio
,
2633 struct qla_tgt_prm
*prm
)
2635 prm
->sense_buffer_len
= min_t(uint32_t, prm
->sense_buffer_len
,
2636 (uint32_t)sizeof(ctio
->u
.status1
.sense_data
));
2637 ctio
->u
.status0
.flags
|= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS
);
2638 if (qlt_need_explicit_conf(prm
->cmd
, 0)) {
2639 ctio
->u
.status0
.flags
|= cpu_to_le16(
2640 CTIO7_FLAGS_EXPLICIT_CONFORM
|
2641 CTIO7_FLAGS_CONFORM_REQ
);
2643 ctio
->u
.status0
.residual
= cpu_to_le32(prm
->residual
);
2644 ctio
->u
.status0
.scsi_status
= cpu_to_le16(prm
->rq_result
);
2645 if (QLA_TGT_SENSE_VALID(prm
->sense_buffer
)) {
2648 if (qlt_need_explicit_conf(prm
->cmd
, 1)) {
2649 if ((prm
->rq_result
& SS_SCSI_STATUS_BYTE
) != 0) {
2650 ql_dbg_qp(ql_dbg_tgt
, prm
->cmd
->qpair
, 0xe017,
2651 "Skipping EXPLICIT_CONFORM and "
2652 "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
2653 "non GOOD status\n");
2654 goto skip_explict_conf
;
2656 ctio
->u
.status1
.flags
|= cpu_to_le16(
2657 CTIO7_FLAGS_EXPLICIT_CONFORM
|
2658 CTIO7_FLAGS_CONFORM_REQ
);
2661 ctio
->u
.status1
.flags
&=
2662 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0
);
2663 ctio
->u
.status1
.flags
|=
2664 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1
);
2665 ctio
->u
.status1
.scsi_status
|=
2666 cpu_to_le16(SS_SENSE_LEN_VALID
);
2667 ctio
->u
.status1
.sense_length
=
2668 cpu_to_le16(prm
->sense_buffer_len
);
2669 for (i
= 0; i
< prm
->sense_buffer_len
/4; i
++)
2670 ((uint32_t *)ctio
->u
.status1
.sense_data
)[i
] =
2671 cpu_to_be32(((uint32_t *)prm
->sense_buffer
)[i
]);
2673 qlt_print_dif_err(prm
);
2676 ctio
->u
.status1
.flags
&=
2677 ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0
);
2678 ctio
->u
.status1
.flags
|=
2679 cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1
);
2680 ctio
->u
.status1
.sense_length
= 0;
2681 memset(ctio
->u
.status1
.sense_data
, 0,
2682 sizeof(ctio
->u
.status1
.sense_data
));
2685 /* Sense with len > 24, is it possible ??? */
2689 qlt_hba_err_chk_enabled(struct se_cmd
*se_cmd
)
2691 switch (se_cmd
->prot_op
) {
2692 case TARGET_PROT_DOUT_INSERT
:
2693 case TARGET_PROT_DIN_STRIP
:
2694 if (ql2xenablehba_err_chk
>= 1)
2697 case TARGET_PROT_DOUT_PASS
:
2698 case TARGET_PROT_DIN_PASS
:
2699 if (ql2xenablehba_err_chk
>= 2)
2702 case TARGET_PROT_DIN_INSERT
:
2703 case TARGET_PROT_DOUT_STRIP
:
2712 qla_tgt_ref_mask_check(struct se_cmd
*se_cmd
)
2714 switch (se_cmd
->prot_op
) {
2715 case TARGET_PROT_DIN_INSERT
:
2716 case TARGET_PROT_DOUT_INSERT
:
2717 case TARGET_PROT_DIN_STRIP
:
2718 case TARGET_PROT_DOUT_STRIP
:
2719 case TARGET_PROT_DIN_PASS
:
2720 case TARGET_PROT_DOUT_PASS
:
2729 * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command
2732 qla_tgt_set_dif_tags(struct qla_tgt_cmd
*cmd
, struct crc_context
*ctx
,
2733 uint16_t *pfw_prot_opts
)
2735 struct se_cmd
*se_cmd
= &cmd
->se_cmd
;
2736 uint32_t lba
= 0xffffffff & se_cmd
->t_task_lba
;
2737 scsi_qla_host_t
*vha
= cmd
->tgt
->vha
;
2738 struct qla_hw_data
*ha
= vha
->hw
;
2742 * wait till Mode Sense/Select cmd, modepage Ah, subpage 2
2743 * have been immplemented by TCM, before AppTag is avail.
2744 * Look for modesense_handlers[]
2747 ctx
->app_tag_mask
[0] = 0x0;
2748 ctx
->app_tag_mask
[1] = 0x0;
2750 if (IS_PI_UNINIT_CAPABLE(ha
)) {
2751 if ((se_cmd
->prot_type
== TARGET_DIF_TYPE1_PROT
) ||
2752 (se_cmd
->prot_type
== TARGET_DIF_TYPE2_PROT
))
2753 *pfw_prot_opts
|= PO_DIS_VALD_APP_ESC
;
2754 else if (se_cmd
->prot_type
== TARGET_DIF_TYPE3_PROT
)
2755 *pfw_prot_opts
|= PO_DIS_VALD_APP_REF_ESC
;
2758 t32
= ha
->tgt
.tgt_ops
->get_dif_tags(cmd
, pfw_prot_opts
);
2760 switch (se_cmd
->prot_type
) {
2761 case TARGET_DIF_TYPE0_PROT
:
2763 * No check for ql2xenablehba_err_chk, as it
2764 * would be an I/O error if hba tag generation
2767 ctx
->ref_tag
= cpu_to_le32(lba
);
2768 /* enable ALL bytes of the ref tag */
2769 ctx
->ref_tag_mask
[0] = 0xff;
2770 ctx
->ref_tag_mask
[1] = 0xff;
2771 ctx
->ref_tag_mask
[2] = 0xff;
2772 ctx
->ref_tag_mask
[3] = 0xff;
2774 case TARGET_DIF_TYPE1_PROT
:
2776 * For TYPE 1 protection: 16 bit GUARD tag, 32 bit
2777 * REF tag, and 16 bit app tag.
2779 ctx
->ref_tag
= cpu_to_le32(lba
);
2780 if (!qla_tgt_ref_mask_check(se_cmd
) ||
2781 !(ha
->tgt
.tgt_ops
->chk_dif_tags(t32
))) {
2782 *pfw_prot_opts
|= PO_DIS_REF_TAG_VALD
;
2785 /* enable ALL bytes of the ref tag */
2786 ctx
->ref_tag_mask
[0] = 0xff;
2787 ctx
->ref_tag_mask
[1] = 0xff;
2788 ctx
->ref_tag_mask
[2] = 0xff;
2789 ctx
->ref_tag_mask
[3] = 0xff;
2791 case TARGET_DIF_TYPE2_PROT
:
2793 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF
2794 * tag has to match LBA in CDB + N
2796 ctx
->ref_tag
= cpu_to_le32(lba
);
2797 if (!qla_tgt_ref_mask_check(se_cmd
) ||
2798 !(ha
->tgt
.tgt_ops
->chk_dif_tags(t32
))) {
2799 *pfw_prot_opts
|= PO_DIS_REF_TAG_VALD
;
2802 /* enable ALL bytes of the ref tag */
2803 ctx
->ref_tag_mask
[0] = 0xff;
2804 ctx
->ref_tag_mask
[1] = 0xff;
2805 ctx
->ref_tag_mask
[2] = 0xff;
2806 ctx
->ref_tag_mask
[3] = 0xff;
2808 case TARGET_DIF_TYPE3_PROT
:
2809 /* For TYPE 3 protection: 16 bit GUARD only */
2810 *pfw_prot_opts
|= PO_DIS_REF_TAG_VALD
;
2811 ctx
->ref_tag_mask
[0] = ctx
->ref_tag_mask
[1] =
2812 ctx
->ref_tag_mask
[2] = ctx
->ref_tag_mask
[3] = 0x00;
2818 qlt_build_ctio_crc2_pkt(struct qla_qpair
*qpair
, struct qla_tgt_prm
*prm
)
2821 uint32_t transfer_length
= 0;
2822 uint32_t data_bytes
;
2824 uint8_t bundling
= 1;
2826 struct crc_context
*crc_ctx_pkt
= NULL
;
2827 struct qla_hw_data
*ha
;
2828 struct ctio_crc2_to_fw
*pkt
;
2829 dma_addr_t crc_ctx_dma
;
2830 uint16_t fw_prot_opts
= 0;
2831 struct qla_tgt_cmd
*cmd
= prm
->cmd
;
2832 struct se_cmd
*se_cmd
= &cmd
->se_cmd
;
2834 struct atio_from_isp
*atio
= &prm
->cmd
->atio
;
2835 struct qla_tc_param tc
;
2837 scsi_qla_host_t
*vha
= cmd
->vha
;
2841 pkt
= (struct ctio_crc2_to_fw
*)qpair
->req
->ring_ptr
;
2843 memset(pkt
, 0, sizeof(*pkt
));
2845 ql_dbg_qp(ql_dbg_tgt
, cmd
->qpair
, 0xe071,
2846 "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n",
2847 cmd
->vp_idx
, __func__
, se_cmd
, se_cmd
->prot_op
,
2848 prm
->prot_sg
, prm
->prot_seg_cnt
, se_cmd
->t_task_lba
);
2850 if ((se_cmd
->prot_op
== TARGET_PROT_DIN_INSERT
) ||
2851 (se_cmd
->prot_op
== TARGET_PROT_DOUT_STRIP
))
2854 /* Compute dif len and adjust data len to incude protection */
2855 data_bytes
= cmd
->bufflen
;
2856 dif_bytes
= (data_bytes
/ cmd
->blk_sz
) * 8;
2858 switch (se_cmd
->prot_op
) {
2859 case TARGET_PROT_DIN_INSERT
:
2860 case TARGET_PROT_DOUT_STRIP
:
2861 transfer_length
= data_bytes
;
2862 if (cmd
->prot_sg_cnt
)
2863 data_bytes
+= dif_bytes
;
2865 case TARGET_PROT_DIN_STRIP
:
2866 case TARGET_PROT_DOUT_INSERT
:
2867 case TARGET_PROT_DIN_PASS
:
2868 case TARGET_PROT_DOUT_PASS
:
2869 transfer_length
= data_bytes
+ dif_bytes
;
2876 if (!qlt_hba_err_chk_enabled(se_cmd
))
2877 fw_prot_opts
|= 0x10; /* Disable Guard tag checking */
2878 /* HBA error checking enabled */
2879 else if (IS_PI_UNINIT_CAPABLE(ha
)) {
2880 if ((se_cmd
->prot_type
== TARGET_DIF_TYPE1_PROT
) ||
2881 (se_cmd
->prot_type
== TARGET_DIF_TYPE2_PROT
))
2882 fw_prot_opts
|= PO_DIS_VALD_APP_ESC
;
2883 else if (se_cmd
->prot_type
== TARGET_DIF_TYPE3_PROT
)
2884 fw_prot_opts
|= PO_DIS_VALD_APP_REF_ESC
;
2887 switch (se_cmd
->prot_op
) {
2888 case TARGET_PROT_DIN_INSERT
:
2889 case TARGET_PROT_DOUT_INSERT
:
2890 fw_prot_opts
|= PO_MODE_DIF_INSERT
;
2892 case TARGET_PROT_DIN_STRIP
:
2893 case TARGET_PROT_DOUT_STRIP
:
2894 fw_prot_opts
|= PO_MODE_DIF_REMOVE
;
2896 case TARGET_PROT_DIN_PASS
:
2897 case TARGET_PROT_DOUT_PASS
:
2898 fw_prot_opts
|= PO_MODE_DIF_PASS
;
2899 /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */
2901 default:/* Normal Request */
2902 fw_prot_opts
|= PO_MODE_DIF_PASS
;
2907 /* Update entry type to indicate Command Type CRC_2 IOCB */
2908 pkt
->entry_type
= CTIO_CRC2
;
2909 pkt
->entry_count
= 1;
2910 pkt
->vp_index
= cmd
->vp_idx
;
2912 h
= qlt_make_handle(qpair
);
2913 if (unlikely(h
== QLA_TGT_NULL_HANDLE
)) {
2915 * CTIO type 7 from the firmware doesn't provide a way to
2916 * know the initiator's LOOP ID, hence we can't find
2917 * the session and, so, the command.
2921 qpair
->req
->outstanding_cmds
[h
] = (srb_t
*)prm
->cmd
;
2923 pkt
->handle
= MAKE_HANDLE(qpair
->req
->id
, h
);
2924 pkt
->handle
|= CTIO_COMPLETION_HANDLE_MARK
;
2925 pkt
->nport_handle
= cpu_to_le16(prm
->cmd
->loop_id
);
2926 pkt
->timeout
= cpu_to_le16(QLA_TGT_TIMEOUT
);
2927 pkt
->initiator_id
[0] = atio
->u
.isp24
.fcp_hdr
.s_id
[2];
2928 pkt
->initiator_id
[1] = atio
->u
.isp24
.fcp_hdr
.s_id
[1];
2929 pkt
->initiator_id
[2] = atio
->u
.isp24
.fcp_hdr
.s_id
[0];
2930 pkt
->exchange_addr
= atio
->u
.isp24
.exchange_addr
;
2932 /* silence compile warning */
2933 t16
= be16_to_cpu(atio
->u
.isp24
.fcp_hdr
.ox_id
);
2934 pkt
->ox_id
= cpu_to_le16(t16
);
2936 t16
= (atio
->u
.isp24
.attr
<< 9);
2937 pkt
->flags
|= cpu_to_le16(t16
);
2938 pkt
->relative_offset
= cpu_to_le32(prm
->cmd
->offset
);
2940 /* Set transfer direction */
2941 if (cmd
->dma_data_direction
== DMA_TO_DEVICE
)
2942 pkt
->flags
= cpu_to_le16(CTIO7_FLAGS_DATA_IN
);
2943 else if (cmd
->dma_data_direction
== DMA_FROM_DEVICE
)
2944 pkt
->flags
= cpu_to_le16(CTIO7_FLAGS_DATA_OUT
);
2946 pkt
->dseg_count
= prm
->tot_dsds
;
2947 /* Fibre channel byte count */
2948 pkt
->transfer_length
= cpu_to_le32(transfer_length
);
2950 /* ----- CRC context -------- */
2952 /* Allocate CRC context from global pool */
2953 crc_ctx_pkt
= cmd
->ctx
=
2954 dma_pool_alloc(ha
->dl_dma_pool
, GFP_ATOMIC
, &crc_ctx_dma
);
2957 goto crc_queuing_error
;
2959 /* Zero out CTX area. */
2960 clr_ptr
= (uint8_t *)crc_ctx_pkt
;
2961 memset(clr_ptr
, 0, sizeof(*crc_ctx_pkt
));
2963 crc_ctx_pkt
->crc_ctx_dma
= crc_ctx_dma
;
2964 INIT_LIST_HEAD(&crc_ctx_pkt
->dsd_list
);
2967 crc_ctx_pkt
->handle
= pkt
->handle
;
2969 qla_tgt_set_dif_tags(cmd
, crc_ctx_pkt
, &fw_prot_opts
);
2971 pkt
->crc_context_address
[0] = cpu_to_le32(LSD(crc_ctx_dma
));
2972 pkt
->crc_context_address
[1] = cpu_to_le32(MSD(crc_ctx_dma
));
2973 pkt
->crc_context_len
= CRC_CONTEXT_LEN_FW
;
2976 cur_dsd
= (uint32_t *) &crc_ctx_pkt
->u
.nobundling
.data_address
;
2979 * Configure Bundling if we need to fetch interlaving
2980 * protection PCI accesses
2982 fw_prot_opts
|= PO_ENABLE_DIF_BUNDLING
;
2983 crc_ctx_pkt
->u
.bundling
.dif_byte_count
= cpu_to_le32(dif_bytes
);
2984 crc_ctx_pkt
->u
.bundling
.dseg_count
=
2985 cpu_to_le16(prm
->tot_dsds
- prm
->prot_seg_cnt
);
2986 cur_dsd
= (uint32_t *) &crc_ctx_pkt
->u
.bundling
.data_address
;
2989 /* Finish the common fields of CRC pkt */
2990 crc_ctx_pkt
->blk_size
= cpu_to_le16(cmd
->blk_sz
);
2991 crc_ctx_pkt
->prot_opts
= cpu_to_le16(fw_prot_opts
);
2992 crc_ctx_pkt
->byte_count
= cpu_to_le32(data_bytes
);
2993 crc_ctx_pkt
->guard_seed
= cpu_to_le16(0);
2995 memset((uint8_t *)&tc
, 0 , sizeof(tc
));
2997 tc
.blk_sz
= cmd
->blk_sz
;
2998 tc
.bufflen
= cmd
->bufflen
;
3000 tc
.prot_sg
= cmd
->prot_sg
;
3001 tc
.ctx
= crc_ctx_pkt
;
3002 tc
.ctx_dsd_alloced
= &cmd
->ctx_dsd_alloced
;
3004 /* Walks data segments */
3005 pkt
->flags
|= cpu_to_le16(CTIO7_FLAGS_DSD_PTR
);
3007 if (!bundling
&& prm
->prot_seg_cnt
) {
3008 if (qla24xx_walk_and_build_sglist_no_difb(ha
, NULL
, cur_dsd
,
3009 prm
->tot_dsds
, &tc
))
3010 goto crc_queuing_error
;
3011 } else if (qla24xx_walk_and_build_sglist(ha
, NULL
, cur_dsd
,
3012 (prm
->tot_dsds
- prm
->prot_seg_cnt
), &tc
))
3013 goto crc_queuing_error
;
3015 if (bundling
&& prm
->prot_seg_cnt
) {
3016 /* Walks dif segments */
3017 pkt
->add_flags
|= CTIO_CRC2_AF_DIF_DSD_ENA
;
3019 cur_dsd
= (uint32_t *) &crc_ctx_pkt
->u
.bundling
.dif_address
;
3020 if (qla24xx_walk_and_build_prot_sglist(ha
, NULL
, cur_dsd
,
3021 prm
->prot_seg_cnt
, &tc
))
3022 goto crc_queuing_error
;
3027 /* Cleanup will be performed by the caller */
3028 qpair
->req
->outstanding_cmds
[h
] = NULL
;
3030 return QLA_FUNCTION_FAILED
;
3034 * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and *
3035 * QLA_TGT_XMIT_STATUS for >= 24xx silicon
3037 int qlt_xmit_response(struct qla_tgt_cmd
*cmd
, int xmit_type
,
3038 uint8_t scsi_status
)
3040 struct scsi_qla_host
*vha
= cmd
->vha
;
3041 struct qla_qpair
*qpair
= cmd
->qpair
;
3042 struct ctio7_to_24xx
*pkt
;
3043 struct qla_tgt_prm prm
;
3044 uint32_t full_req_cnt
= 0;
3045 unsigned long flags
= 0;
3048 if (cmd
->sess
&& cmd
->sess
->deleted
) {
3049 cmd
->state
= QLA_TGT_STATE_PROCESSED
;
3050 if (cmd
->sess
->logout_completed
)
3051 /* no need to terminate. FW already freed exchange. */
3052 qlt_abort_cmd_on_host_reset(cmd
->vha
, cmd
);
3054 qlt_send_term_exchange(qpair
, cmd
, &cmd
->atio
, 0, 0);
3058 ql_dbg_qp(ql_dbg_tgt
, qpair
, 0xe018,
3059 "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n",
3060 (xmit_type
& QLA_TGT_XMIT_STATUS
) ?
3061 1 : 0, cmd
->bufflen
, cmd
->sg_cnt
, cmd
->dma_data_direction
,
3062 &cmd
->se_cmd
, qpair
->id
);
3064 res
= qlt_pre_xmit_response(cmd
, &prm
, xmit_type
, scsi_status
,
3066 if (unlikely(res
!= 0)) {
3070 spin_lock_irqsave(qpair
->qp_lock_ptr
, flags
);
3072 if (xmit_type
== QLA_TGT_XMIT_STATUS
)
3073 qpair
->tgt_counters
.core_qla_snd_status
++;
3075 qpair
->tgt_counters
.core_qla_que_buf
++;
3077 if (!qpair
->fw_started
|| cmd
->reset_count
!= qpair
->chip_reset
) {
3079 * Either the port is not online or this request was from
3080 * previous life, just abort the processing.
3082 cmd
->state
= QLA_TGT_STATE_PROCESSED
;
3083 qlt_abort_cmd_on_host_reset(cmd
->vha
, cmd
);
3084 ql_dbg_qp(ql_dbg_async
, qpair
, 0xe101,
3085 "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
3086 vha
->flags
.online
, qla2x00_reset_active(vha
),
3087 cmd
->reset_count
, qpair
->chip_reset
);
3088 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
3092 /* Does F/W have an IOCBs for this request */
3093 res
= qlt_check_reserve_free_req(qpair
, full_req_cnt
);
3095 goto out_unmap_unlock
;
3097 if (cmd
->se_cmd
.prot_op
&& (xmit_type
& QLA_TGT_XMIT_DATA
))
3098 res
= qlt_build_ctio_crc2_pkt(qpair
, &prm
);
3100 res
= qlt_24xx_build_ctio_pkt(qpair
, &prm
);
3101 if (unlikely(res
!= 0)) {
3102 qpair
->req
->cnt
+= full_req_cnt
;
3103 goto out_unmap_unlock
;
3106 pkt
= (struct ctio7_to_24xx
*)prm
.pkt
;
3108 if (qlt_has_data(cmd
) && (xmit_type
& QLA_TGT_XMIT_DATA
)) {
3109 pkt
->u
.status0
.flags
|=
3110 cpu_to_le16(CTIO7_FLAGS_DATA_IN
|
3111 CTIO7_FLAGS_STATUS_MODE_0
);
3113 if (cmd
->se_cmd
.prot_op
== TARGET_PROT_NORMAL
)
3114 qlt_load_data_segments(&prm
);
3116 if (prm
.add_status_pkt
== 0) {
3117 if (xmit_type
& QLA_TGT_XMIT_STATUS
) {
3118 pkt
->u
.status0
.scsi_status
=
3119 cpu_to_le16(prm
.rq_result
);
3120 pkt
->u
.status0
.residual
=
3121 cpu_to_le32(prm
.residual
);
3122 pkt
->u
.status0
.flags
|= cpu_to_le16(
3123 CTIO7_FLAGS_SEND_STATUS
);
3124 if (qlt_need_explicit_conf(cmd
, 0)) {
3125 pkt
->u
.status0
.flags
|=
3127 CTIO7_FLAGS_EXPLICIT_CONFORM
|
3128 CTIO7_FLAGS_CONFORM_REQ
);
3134 * We have already made sure that there is sufficient
3135 * amount of request entries to not drop HW lock in
3138 struct ctio7_to_24xx
*ctio
=
3139 (struct ctio7_to_24xx
*)qlt_get_req_pkt(
3142 ql_dbg_qp(ql_dbg_tgt
, qpair
, 0x305e,
3143 "Building additional status packet 0x%p.\n",
3147 * T10Dif: ctio_crc2_to_fw overlay ontop of
3150 memcpy(ctio
, pkt
, sizeof(*ctio
));
3151 /* reset back to CTIO7 */
3152 ctio
->entry_count
= 1;
3153 ctio
->entry_type
= CTIO_TYPE7
;
3154 ctio
->dseg_count
= 0;
3155 ctio
->u
.status1
.flags
&= ~cpu_to_le16(
3156 CTIO7_FLAGS_DATA_IN
);
3158 /* Real finish is ctio_m1's finish */
3159 pkt
->handle
|= CTIO_INTERMEDIATE_HANDLE_MARK
;
3160 pkt
->u
.status0
.flags
|= cpu_to_le16(
3161 CTIO7_FLAGS_DONT_RET_CTIO
);
3163 /* qlt_24xx_init_ctio_to_isp will correct
3164 * all neccessary fields that's part of CTIO7.
3165 * There should be no residual of CTIO-CRC2 data.
3167 qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx
*)ctio
,
3171 qlt_24xx_init_ctio_to_isp(pkt
, &prm
);
3174 cmd
->state
= QLA_TGT_STATE_PROCESSED
; /* Mid-level is done processing */
3175 cmd
->cmd_sent_to_fw
= 1;
3177 /* Memory Barrier */
3179 if (qpair
->reqq_start_iocbs
)
3180 qpair
->reqq_start_iocbs(qpair
);
3182 qla2x00_start_iocbs(vha
, qpair
->req
);
3183 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
3188 qlt_unmap_sg(vha
, cmd
);
3189 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
3193 EXPORT_SYMBOL(qlt_xmit_response
);
3195 int qlt_rdy_to_xfer(struct qla_tgt_cmd
*cmd
)
3197 struct ctio7_to_24xx
*pkt
;
3198 struct scsi_qla_host
*vha
= cmd
->vha
;
3199 struct qla_tgt
*tgt
= cmd
->tgt
;
3200 struct qla_tgt_prm prm
;
3201 unsigned long flags
= 0;
3203 struct qla_qpair
*qpair
= cmd
->qpair
;
3205 memset(&prm
, 0, sizeof(prm
));
3211 /* Calculate number of entries and segments required */
3212 if (qlt_pci_map_calc_cnt(&prm
) != 0)
3215 if (!qpair
->fw_started
|| (cmd
->reset_count
!= qpair
->chip_reset
) ||
3216 (cmd
->sess
&& cmd
->sess
->deleted
)) {
3218 * Either the port is not online or this request was from
3219 * previous life, just abort the processing.
3221 cmd
->state
= QLA_TGT_STATE_NEED_DATA
;
3222 qlt_abort_cmd_on_host_reset(cmd
->vha
, cmd
);
3223 ql_dbg_qp(ql_dbg_async
, qpair
, 0xe102,
3224 "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
3225 vha
->flags
.online
, qla2x00_reset_active(vha
),
3226 cmd
->reset_count
, qpair
->chip_reset
);
3230 spin_lock_irqsave(qpair
->qp_lock_ptr
, flags
);
3231 /* Does F/W have an IOCBs for this request */
3232 res
= qlt_check_reserve_free_req(qpair
, prm
.req_cnt
);
3234 goto out_unlock_free_unmap
;
3235 if (cmd
->se_cmd
.prot_op
)
3236 res
= qlt_build_ctio_crc2_pkt(qpair
, &prm
);
3238 res
= qlt_24xx_build_ctio_pkt(qpair
, &prm
);
3240 if (unlikely(res
!= 0)) {
3241 qpair
->req
->cnt
+= prm
.req_cnt
;
3242 goto out_unlock_free_unmap
;
3245 pkt
= (struct ctio7_to_24xx
*)prm
.pkt
;
3246 pkt
->u
.status0
.flags
|= cpu_to_le16(CTIO7_FLAGS_DATA_OUT
|
3247 CTIO7_FLAGS_STATUS_MODE_0
);
3249 if (cmd
->se_cmd
.prot_op
== TARGET_PROT_NORMAL
)
3250 qlt_load_data_segments(&prm
);
3252 cmd
->state
= QLA_TGT_STATE_NEED_DATA
;
3253 cmd
->cmd_sent_to_fw
= 1;
3255 /* Memory Barrier */
3257 if (qpair
->reqq_start_iocbs
)
3258 qpair
->reqq_start_iocbs(qpair
);
3260 qla2x00_start_iocbs(vha
, qpair
->req
);
3261 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
3265 out_unlock_free_unmap
:
3266 qlt_unmap_sg(vha
, cmd
);
3267 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
3271 EXPORT_SYMBOL(qlt_rdy_to_xfer
);
3275 * it is assumed either hardware_lock or qpair lock is held.
3278 qlt_handle_dif_error(struct qla_qpair
*qpair
, struct qla_tgt_cmd
*cmd
,
3279 struct ctio_crc_from_fw
*sts
)
3281 uint8_t *ap
= &sts
->actual_dif
[0];
3282 uint8_t *ep
= &sts
->expected_dif
[0];
3283 uint64_t lba
= cmd
->se_cmd
.t_task_lba
;
3284 uint8_t scsi_status
, sense_key
, asc
, ascq
;
3285 unsigned long flags
;
3286 struct scsi_qla_host
*vha
= cmd
->vha
;
3288 cmd
->trc_flags
|= TRC_DIF_ERR
;
3290 cmd
->a_guard
= be16_to_cpu(*(uint16_t *)(ap
+ 0));
3291 cmd
->a_app_tag
= be16_to_cpu(*(uint16_t *)(ap
+ 2));
3292 cmd
->a_ref_tag
= be32_to_cpu(*(uint32_t *)(ap
+ 4));
3294 cmd
->e_guard
= be16_to_cpu(*(uint16_t *)(ep
+ 0));
3295 cmd
->e_app_tag
= be16_to_cpu(*(uint16_t *)(ep
+ 2));
3296 cmd
->e_ref_tag
= be32_to_cpu(*(uint32_t *)(ep
+ 4));
3298 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xf075,
3299 "%s: aborted %d state %d\n", __func__
, cmd
->aborted
, cmd
->state
);
3301 scsi_status
= sense_key
= asc
= ascq
= 0;
3303 /* check appl tag */
3304 if (cmd
->e_app_tag
!= cmd
->a_app_tag
) {
3305 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xe00d,
3306 "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]",
3307 cmd
->cdb
[0], lba
, (lba
+cmd
->num_blks
), cmd
->num_blks
,
3308 cmd
->a_ref_tag
, cmd
->e_ref_tag
, cmd
->a_app_tag
,
3309 cmd
->e_app_tag
, cmd
->a_guard
, cmd
->e_guard
, cmd
,
3310 cmd
->atio
.u
.isp24
.fcp_hdr
.ox_id
);
3312 cmd
->dif_err_code
= DIF_ERR_APP
;
3313 scsi_status
= SAM_STAT_CHECK_CONDITION
;
3314 sense_key
= ABORTED_COMMAND
;
3320 if (cmd
->e_ref_tag
!= cmd
->a_ref_tag
) {
3321 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xe00e,
3322 "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] ",
3323 cmd
->cdb
[0], lba
, (lba
+cmd
->num_blks
), cmd
->num_blks
,
3324 cmd
->a_ref_tag
, cmd
->e_ref_tag
, cmd
->a_app_tag
,
3325 cmd
->e_app_tag
, cmd
->a_guard
, cmd
->e_guard
, cmd
,
3326 cmd
->atio
.u
.isp24
.fcp_hdr
.ox_id
);
3328 cmd
->dif_err_code
= DIF_ERR_REF
;
3329 scsi_status
= SAM_STAT_CHECK_CONDITION
;
3330 sense_key
= ABORTED_COMMAND
;
3337 if (cmd
->e_guard
!= cmd
->a_guard
) {
3338 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xe012,
3339 "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]",
3340 cmd
->cdb
[0], lba
, (lba
+cmd
->num_blks
), cmd
->num_blks
,
3341 cmd
->a_ref_tag
, cmd
->e_ref_tag
, cmd
->a_app_tag
,
3342 cmd
->e_app_tag
, cmd
->a_guard
, cmd
->e_guard
, cmd
,
3343 cmd
->atio
.u
.isp24
.fcp_hdr
.ox_id
);
3345 cmd
->dif_err_code
= DIF_ERR_GRD
;
3346 scsi_status
= SAM_STAT_CHECK_CONDITION
;
3347 sense_key
= ABORTED_COMMAND
;
3352 switch (cmd
->state
) {
3353 case QLA_TGT_STATE_NEED_DATA
:
3354 /* handle_data will load DIF error code */
3355 cmd
->state
= QLA_TGT_STATE_DATA_IN
;
3356 vha
->hw
->tgt
.tgt_ops
->handle_data(cmd
);
3359 spin_lock_irqsave(&cmd
->cmd_lock
, flags
);
3361 spin_unlock_irqrestore(&cmd
->cmd_lock
, flags
);
3362 vha
->hw
->tgt
.tgt_ops
->free_cmd(cmd
);
3365 spin_unlock_irqrestore(&cmd
->cmd_lock
, flags
);
3367 qlt_send_resp_ctio(qpair
, cmd
, scsi_status
, sense_key
, asc
,
3369 /* assume scsi status gets out on the wire.
3370 * Will not wait for completion.
3372 vha
->hw
->tgt
.tgt_ops
->free_cmd(cmd
);
3377 /* If hardware_lock held on entry, might drop it, then reaquire */
3378 /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */
3379 static int __qlt_send_term_imm_notif(struct scsi_qla_host
*vha
,
3380 struct imm_ntfy_from_isp
*ntfy
)
3382 struct nack_to_isp
*nack
;
3383 struct qla_hw_data
*ha
= vha
->hw
;
3387 ql_dbg(ql_dbg_tgt_tmr
, vha
, 0xe01c,
3388 "Sending TERM ELS CTIO (ha=%p)\n", ha
);
3390 pkt
= (request_t
*)qla2x00_alloc_iocbs(vha
, NULL
);
3392 ql_dbg(ql_dbg_tgt
, vha
, 0xe080,
3393 "qla_target(%d): %s failed: unable to allocate "
3394 "request packet\n", vha
->vp_idx
, __func__
);
3398 pkt
->entry_type
= NOTIFY_ACK_TYPE
;
3399 pkt
->entry_count
= 1;
3400 pkt
->handle
= QLA_TGT_SKIP_HANDLE
;
3402 nack
= (struct nack_to_isp
*)pkt
;
3403 nack
->ox_id
= ntfy
->ox_id
;
3405 nack
->u
.isp24
.nport_handle
= ntfy
->u
.isp24
.nport_handle
;
3406 if (le16_to_cpu(ntfy
->u
.isp24
.status
) == IMM_NTFY_ELS
) {
3407 nack
->u
.isp24
.flags
= ntfy
->u
.isp24
.flags
&
3408 __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB
);
3412 nack
->u
.isp24
.flags
|=
3413 __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE
);
3415 nack
->u
.isp24
.srr_rx_id
= ntfy
->u
.isp24
.srr_rx_id
;
3416 nack
->u
.isp24
.status
= ntfy
->u
.isp24
.status
;
3417 nack
->u
.isp24
.status_subcode
= ntfy
->u
.isp24
.status_subcode
;
3418 nack
->u
.isp24
.fw_handle
= ntfy
->u
.isp24
.fw_handle
;
3419 nack
->u
.isp24
.exchange_address
= ntfy
->u
.isp24
.exchange_address
;
3420 nack
->u
.isp24
.srr_rel_offs
= ntfy
->u
.isp24
.srr_rel_offs
;
3421 nack
->u
.isp24
.srr_ui
= ntfy
->u
.isp24
.srr_ui
;
3422 nack
->u
.isp24
.vp_index
= ntfy
->u
.isp24
.vp_index
;
3424 qla2x00_start_iocbs(vha
, vha
->req
);
3428 static void qlt_send_term_imm_notif(struct scsi_qla_host
*vha
,
3429 struct imm_ntfy_from_isp
*imm
, int ha_locked
)
3431 unsigned long flags
= 0;
3435 rc
= __qlt_send_term_imm_notif(vha
, imm
);
3439 qlt_alloc_qfull_cmd(vha
, imm
, 0, 0);
3447 spin_lock_irqsave(&vha
->hw
->hardware_lock
, flags
);
3448 rc
= __qlt_send_term_imm_notif(vha
, imm
);
3452 qlt_alloc_qfull_cmd(vha
, imm
, 0, 0);
3457 spin_unlock_irqrestore(&vha
->hw
->hardware_lock
, flags
);
3461 * If hardware_lock held on entry, might drop it, then reaquire
3462 * This function sends the appropriate CTIO to ISP 2xxx or 24xx
3464 static int __qlt_send_term_exchange(struct qla_qpair
*qpair
,
3465 struct qla_tgt_cmd
*cmd
,
3466 struct atio_from_isp
*atio
)
3468 struct scsi_qla_host
*vha
= qpair
->vha
;
3469 struct ctio7_to_24xx
*ctio24
;
3470 struct qla_hw_data
*ha
= vha
->hw
;
3475 ql_dbg(ql_dbg_tgt
, vha
, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha
);
3480 pkt
= (request_t
*)qla2x00_alloc_iocbs_ready(qpair
, NULL
);
3482 ql_dbg(ql_dbg_tgt
, vha
, 0xe050,
3483 "qla_target(%d): %s failed: unable to allocate "
3484 "request packet\n", vha
->vp_idx
, __func__
);
3489 if (cmd
->state
< QLA_TGT_STATE_PROCESSED
) {
3490 ql_dbg(ql_dbg_tgt
, vha
, 0xe051,
3491 "qla_target(%d): Terminating cmd %p with "
3492 "incorrect state %d\n", vha
->vp_idx
, cmd
,
3498 qpair
->tgt_counters
.num_term_xchg_sent
++;
3499 pkt
->entry_count
= 1;
3500 pkt
->handle
= QLA_TGT_SKIP_HANDLE
| CTIO_COMPLETION_HANDLE_MARK
;
3502 ctio24
= (struct ctio7_to_24xx
*)pkt
;
3503 ctio24
->entry_type
= CTIO_TYPE7
;
3504 ctio24
->nport_handle
= CTIO7_NHANDLE_UNRECOGNIZED
;
3505 ctio24
->timeout
= cpu_to_le16(QLA_TGT_TIMEOUT
);
3506 ctio24
->vp_index
= vha
->vp_idx
;
3507 ctio24
->initiator_id
[0] = atio
->u
.isp24
.fcp_hdr
.s_id
[2];
3508 ctio24
->initiator_id
[1] = atio
->u
.isp24
.fcp_hdr
.s_id
[1];
3509 ctio24
->initiator_id
[2] = atio
->u
.isp24
.fcp_hdr
.s_id
[0];
3510 ctio24
->exchange_addr
= atio
->u
.isp24
.exchange_addr
;
3511 temp
= (atio
->u
.isp24
.attr
<< 9) | CTIO7_FLAGS_STATUS_MODE_1
|
3512 CTIO7_FLAGS_TERMINATE
;
3513 ctio24
->u
.status1
.flags
= cpu_to_le16(temp
);
3514 temp
= be16_to_cpu(atio
->u
.isp24
.fcp_hdr
.ox_id
);
3515 ctio24
->u
.status1
.ox_id
= cpu_to_le16(temp
);
3517 /* Most likely, it isn't needed */
3518 ctio24
->u
.status1
.residual
= get_unaligned((uint32_t *)
3519 &atio
->u
.isp24
.fcp_cmnd
.add_cdb
[
3520 atio
->u
.isp24
.fcp_cmnd
.add_cdb_len
]);
3521 if (ctio24
->u
.status1
.residual
!= 0)
3522 ctio24
->u
.status1
.scsi_status
|= SS_RESIDUAL_UNDER
;
3524 /* Memory Barrier */
3526 if (qpair
->reqq_start_iocbs
)
3527 qpair
->reqq_start_iocbs(qpair
);
3529 qla2x00_start_iocbs(vha
, qpair
->req
);
3533 static void qlt_send_term_exchange(struct qla_qpair
*qpair
,
3534 struct qla_tgt_cmd
*cmd
, struct atio_from_isp
*atio
, int ha_locked
,
3537 struct scsi_qla_host
*vha
;
3538 unsigned long flags
= 0;
3541 /* why use different vha? NPIV */
3548 rc
= __qlt_send_term_exchange(qpair
, cmd
, atio
);
3550 qlt_alloc_qfull_cmd(vha
, atio
, 0, 0);
3553 spin_lock_irqsave(qpair
->qp_lock_ptr
, flags
);
3554 rc
= __qlt_send_term_exchange(qpair
, cmd
, atio
);
3556 qlt_alloc_qfull_cmd(vha
, atio
, 0, 0);
3559 if (cmd
&& !ul_abort
&& !cmd
->aborted
) {
3561 qlt_unmap_sg(vha
, cmd
);
3562 vha
->hw
->tgt
.tgt_ops
->free_cmd(cmd
);
3566 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
3571 static void qlt_init_term_exchange(struct scsi_qla_host
*vha
)
3573 struct list_head free_list
;
3574 struct qla_tgt_cmd
*cmd
, *tcmd
;
3576 vha
->hw
->tgt
.leak_exchg_thresh_hold
=
3577 (vha
->hw
->cur_fw_xcb_count
/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT
;
3580 if (!list_empty(&vha
->hw
->tgt
.q_full_list
)) {
3581 INIT_LIST_HEAD(&free_list
);
3582 list_splice_init(&vha
->hw
->tgt
.q_full_list
, &free_list
);
3584 list_for_each_entry_safe(cmd
, tcmd
, &free_list
, cmd_list
) {
3585 list_del(&cmd
->cmd_list
);
3586 /* This cmd was never sent to TCM. There is no need
3587 * to schedule free or call free_cmd
3590 vha
->hw
->tgt
.num_qfull_cmds_alloc
--;
3593 vha
->hw
->tgt
.num_qfull_cmds_dropped
= 0;
3596 static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host
*vha
)
3598 uint32_t total_leaked
;
3600 total_leaked
= vha
->hw
->tgt
.num_qfull_cmds_dropped
;
3602 if (vha
->hw
->tgt
.leak_exchg_thresh_hold
&&
3603 (total_leaked
> vha
->hw
->tgt
.leak_exchg_thresh_hold
)) {
3605 ql_dbg(ql_dbg_tgt
, vha
, 0xe079,
3606 "Chip reset due to exchange starvation: %d/%d.\n",
3607 total_leaked
, vha
->hw
->cur_fw_xcb_count
);
3609 if (IS_P3P_TYPE(vha
->hw
))
3610 set_bit(FCOE_CTX_RESET_NEEDED
, &vha
->dpc_flags
);
3612 set_bit(ISP_ABORT_NEEDED
, &vha
->dpc_flags
);
3613 qla2xxx_wake_dpc(vha
);
3618 int qlt_abort_cmd(struct qla_tgt_cmd
*cmd
)
3620 struct qla_tgt
*tgt
= cmd
->tgt
;
3621 struct scsi_qla_host
*vha
= tgt
->vha
;
3622 struct se_cmd
*se_cmd
= &cmd
->se_cmd
;
3623 unsigned long flags
;
3625 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf014,
3626 "qla_target(%d): terminating exchange for aborted cmd=%p "
3627 "(se_cmd=%p, tag=%llu)", vha
->vp_idx
, cmd
, &cmd
->se_cmd
,
3630 spin_lock_irqsave(&cmd
->cmd_lock
, flags
);
3632 spin_unlock_irqrestore(&cmd
->cmd_lock
, flags
);
3634 * It's normal to see 2 calls in this path:
3635 * 1) XFER Rdy completion + CMD_T_ABORT
3636 * 2) TCM TMR - drain_state_list
3638 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf016,
3639 "multiple abort. %p transport_state %x, t_state %x, "
3640 "se_cmd_flags %x\n", cmd
, cmd
->se_cmd
.transport_state
,
3641 cmd
->se_cmd
.t_state
, cmd
->se_cmd
.se_cmd_flags
);
3645 cmd
->trc_flags
|= TRC_ABORT
;
3646 spin_unlock_irqrestore(&cmd
->cmd_lock
, flags
);
3648 qlt_send_term_exchange(cmd
->qpair
, cmd
, &cmd
->atio
, 0, 1);
3651 EXPORT_SYMBOL(qlt_abort_cmd
);
3653 void qlt_free_cmd(struct qla_tgt_cmd
*cmd
)
3655 struct fc_port
*sess
= cmd
->sess
;
3657 ql_dbg(ql_dbg_tgt
, cmd
->vha
, 0xe074,
3658 "%s: se_cmd[%p] ox_id %04x\n",
3659 __func__
, &cmd
->se_cmd
,
3660 be16_to_cpu(cmd
->atio
.u
.isp24
.fcp_hdr
.ox_id
));
3662 BUG_ON(cmd
->cmd_in_wq
);
3665 qlt_unmap_sg(cmd
->vha
, cmd
);
3668 qlt_decr_num_pend_cmds(cmd
->vha
);
3670 BUG_ON(cmd
->sg_mapped
);
3671 cmd
->jiffies_at_free
= get_jiffies_64();
3672 if (unlikely(cmd
->free_sg
))
3675 if (!sess
|| !sess
->se_sess
) {
3679 cmd
->jiffies_at_free
= get_jiffies_64();
3680 percpu_ida_free(&sess
->se_sess
->sess_tag_pool
, cmd
->se_cmd
.map_tag
);
3682 EXPORT_SYMBOL(qlt_free_cmd
);
3685 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3687 static int qlt_term_ctio_exchange(struct qla_qpair
*qpair
, void *ctio
,
3688 struct qla_tgt_cmd
*cmd
, uint32_t status
)
3691 struct scsi_qla_host
*vha
= qpair
->vha
;
3693 if (cmd
->se_cmd
.prot_op
)
3694 ql_dbg(ql_dbg_tgt_dif
, vha
, 0xe013,
3695 "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] "
3696 "se_cmd=%p tag[%x] op %#x/%s",
3698 cmd
->num_blks
, &cmd
->se_cmd
,
3699 cmd
->atio
.u
.isp24
.exchange_addr
,
3700 cmd
->se_cmd
.prot_op
,
3701 prot_op_str(cmd
->se_cmd
.prot_op
));
3704 struct ctio7_from_24xx
*c
= (struct ctio7_from_24xx
*)ctio
;
3706 cpu_to_le16(OF_TERM_EXCH
));
3711 qlt_term_ctio_exchange(qpair
, ctio
, cmd
, status
);
3717 /* ha->hardware_lock supposed to be held on entry */
3718 static struct qla_tgt_cmd
*qlt_ctio_to_cmd(struct scsi_qla_host
*vha
,
3719 struct rsp_que
*rsp
, uint32_t handle
, void *ctio
)
3721 struct qla_tgt_cmd
*cmd
= NULL
;
3722 struct req_que
*req
;
3723 int qid
= GET_QID(handle
);
3724 uint32_t h
= handle
& ~QLA_TGT_HANDLE_MASK
;
3726 if (unlikely(h
== QLA_TGT_SKIP_HANDLE
))
3729 if (qid
== rsp
->req
->id
) {
3731 } else if (vha
->hw
->req_q_map
[qid
]) {
3732 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0x1000a,
3733 "qla_target(%d): CTIO completion with different QID %d handle %x\n",
3734 vha
->vp_idx
, rsp
->id
, handle
);
3735 req
= vha
->hw
->req_q_map
[qid
];
3740 h
&= QLA_CMD_HANDLE_MASK
;
3742 if (h
!= QLA_TGT_NULL_HANDLE
) {
3743 if (unlikely(h
>= req
->num_outstanding_cmds
)) {
3744 ql_dbg(ql_dbg_tgt
, vha
, 0xe052,
3745 "qla_target(%d): Wrong handle %x received\n",
3746 vha
->vp_idx
, handle
);
3750 cmd
= (struct qla_tgt_cmd
*)req
->outstanding_cmds
[h
];
3751 if (unlikely(cmd
== NULL
)) {
3752 ql_dbg(ql_dbg_async
, vha
, 0xe053,
3753 "qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n",
3754 vha
->vp_idx
, handle
, req
->id
, rsp
->id
);
3757 req
->outstanding_cmds
[h
] = NULL
;
3758 } else if (ctio
!= NULL
) {
3759 /* We can't get loop ID from CTIO7 */
3760 ql_dbg(ql_dbg_tgt
, vha
, 0xe054,
3761 "qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
3762 "support NULL handles\n", vha
->vp_idx
);
3769 /* hardware_lock should be held by caller. */
3771 qlt_abort_cmd_on_host_reset(struct scsi_qla_host
*vha
, struct qla_tgt_cmd
*cmd
)
3773 struct qla_hw_data
*ha
= vha
->hw
;
3776 qlt_unmap_sg(vha
, cmd
);
3778 /* TODO: fix debug message type and ids. */
3779 if (cmd
->state
== QLA_TGT_STATE_PROCESSED
) {
3780 ql_dbg(ql_dbg_io
, vha
, 0xff00,
3781 "HOST-ABORT: state=PROCESSED.\n");
3782 } else if (cmd
->state
== QLA_TGT_STATE_NEED_DATA
) {
3783 cmd
->write_data_transferred
= 0;
3784 cmd
->state
= QLA_TGT_STATE_DATA_IN
;
3786 ql_dbg(ql_dbg_io
, vha
, 0xff01,
3787 "HOST-ABORT: state=DATA_IN.\n");
3789 ha
->tgt
.tgt_ops
->handle_data(cmd
);
3792 ql_dbg(ql_dbg_io
, vha
, 0xff03,
3793 "HOST-ABORT: state=BAD(%d).\n",
3798 cmd
->trc_flags
|= TRC_FLUSH
;
3799 ha
->tgt
.tgt_ops
->free_cmd(cmd
);
3803 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
3805 static void qlt_do_ctio_completion(struct scsi_qla_host
*vha
,
3806 struct rsp_que
*rsp
, uint32_t handle
, uint32_t status
, void *ctio
)
3808 struct qla_hw_data
*ha
= vha
->hw
;
3809 struct se_cmd
*se_cmd
;
3810 struct qla_tgt_cmd
*cmd
;
3811 struct qla_qpair
*qpair
= rsp
->qpair
;
3813 if (handle
& CTIO_INTERMEDIATE_HANDLE_MARK
) {
3814 /* That could happen only in case of an error/reset/abort */
3815 if (status
!= CTIO_SUCCESS
) {
3816 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf01d,
3817 "Intermediate CTIO received"
3818 " (status %x)\n", status
);
3823 cmd
= qlt_ctio_to_cmd(vha
, rsp
, handle
, ctio
);
3827 se_cmd
= &cmd
->se_cmd
;
3828 cmd
->cmd_sent_to_fw
= 0;
3830 qlt_unmap_sg(vha
, cmd
);
3832 if (unlikely(status
!= CTIO_SUCCESS
)) {
3833 switch (status
& 0xFFFF) {
3834 case CTIO_LIP_RESET
:
3835 case CTIO_TARGET_RESET
:
3837 /* driver request abort via Terminate exchange */
3839 case CTIO_INVALID_RX_ID
:
3841 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf058,
3842 "qla_target(%d): CTIO with "
3843 "status %#x received, state %x, se_cmd %p, "
3844 "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
3845 "TIMEOUT=b, INVALID_RX_ID=8)\n", vha
->vp_idx
,
3846 status
, cmd
->state
, se_cmd
);
3849 case CTIO_PORT_LOGGED_OUT
:
3850 case CTIO_PORT_UNAVAILABLE
:
3853 (status
& 0xFFFF) == CTIO_PORT_LOGGED_OUT
;
3855 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf059,
3856 "qla_target(%d): CTIO with %s status %x "
3857 "received (state %x, se_cmd %p)\n", vha
->vp_idx
,
3858 logged_out
? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
3859 status
, cmd
->state
, se_cmd
);
3861 if (logged_out
&& cmd
->sess
) {
3863 * Session is already logged out, but we need
3864 * to notify initiator, who's not aware of this
3866 cmd
->sess
->logout_on_delete
= 0;
3867 cmd
->sess
->send_els_logo
= 1;
3868 ql_dbg(ql_dbg_disc
, vha
, 0x20f8,
3869 "%s %d %8phC post del sess\n",
3870 __func__
, __LINE__
, cmd
->sess
->port_name
);
3872 qlt_schedule_sess_for_deletion_lock(cmd
->sess
);
3876 case CTIO_DIF_ERROR
: {
3877 struct ctio_crc_from_fw
*crc
=
3878 (struct ctio_crc_from_fw
*)ctio
;
3879 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf073,
3880 "qla_target(%d): CTIO with DIF_ERROR status %x "
3881 "received (state %x, ulp_cmd %p) actual_dif[0x%llx] "
3882 "expect_dif[0x%llx]\n",
3883 vha
->vp_idx
, status
, cmd
->state
, se_cmd
,
3884 *((u64
*)&crc
->actual_dif
[0]),
3885 *((u64
*)&crc
->expected_dif
[0]));
3887 qlt_handle_dif_error(qpair
, cmd
, ctio
);
3891 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf05b,
3892 "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n",
3893 vha
->vp_idx
, status
, cmd
->state
, se_cmd
);
3898 /* "cmd->aborted" means
3899 * cmd is already aborted/terminated, we don't
3900 * need to terminate again. The exchange is already
3901 * cleaned up/freed at FW level. Just cleanup at driver
3904 if ((cmd
->state
!= QLA_TGT_STATE_NEED_DATA
) &&
3906 cmd
->trc_flags
|= TRC_CTIO_ERR
;
3907 if (qlt_term_ctio_exchange(qpair
, ctio
, cmd
, status
))
3912 if (cmd
->state
== QLA_TGT_STATE_PROCESSED
) {
3913 cmd
->trc_flags
|= TRC_CTIO_DONE
;
3914 } else if (cmd
->state
== QLA_TGT_STATE_NEED_DATA
) {
3915 cmd
->state
= QLA_TGT_STATE_DATA_IN
;
3917 if (status
== CTIO_SUCCESS
)
3918 cmd
->write_data_transferred
= 1;
3920 ha
->tgt
.tgt_ops
->handle_data(cmd
);
3922 } else if (cmd
->aborted
) {
3923 cmd
->trc_flags
|= TRC_CTIO_ABORTED
;
3924 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf01e,
3925 "Aborted command %p (tag %lld) finished\n", cmd
, se_cmd
->tag
);
3927 cmd
->trc_flags
|= TRC_CTIO_STRANGE
;
3928 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf05c,
3929 "qla_target(%d): A command in state (%d) should "
3930 "not return a CTIO complete\n", vha
->vp_idx
, cmd
->state
);
3933 if (unlikely(status
!= CTIO_SUCCESS
) &&
3935 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf01f, "Finishing failed CTIO\n");
3939 ha
->tgt
.tgt_ops
->free_cmd(cmd
);
3942 static inline int qlt_get_fcp_task_attr(struct scsi_qla_host
*vha
,
3947 switch (task_codes
) {
3948 case ATIO_SIMPLE_QUEUE
:
3949 fcp_task_attr
= TCM_SIMPLE_TAG
;
3951 case ATIO_HEAD_OF_QUEUE
:
3952 fcp_task_attr
= TCM_HEAD_TAG
;
3954 case ATIO_ORDERED_QUEUE
:
3955 fcp_task_attr
= TCM_ORDERED_TAG
;
3957 case ATIO_ACA_QUEUE
:
3958 fcp_task_attr
= TCM_ACA_TAG
;
3961 fcp_task_attr
= TCM_SIMPLE_TAG
;
3964 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf05d,
3965 "qla_target: unknown task code %x, use ORDERED instead\n",
3967 fcp_task_attr
= TCM_ORDERED_TAG
;
3971 return fcp_task_attr
;
3974 static struct fc_port
*qlt_make_local_sess(struct scsi_qla_host
*,
3977 * Process context for I/O path into tcm_qla2xxx code
3979 static void __qlt_do_work(struct qla_tgt_cmd
*cmd
)
3981 scsi_qla_host_t
*vha
= cmd
->vha
;
3982 struct qla_hw_data
*ha
= vha
->hw
;
3983 struct fc_port
*sess
= cmd
->sess
;
3984 struct atio_from_isp
*atio
= &cmd
->atio
;
3986 unsigned long flags
;
3987 uint32_t data_length
;
3988 int ret
, fcp_task_attr
, data_dir
, bidi
= 0;
3989 struct qla_qpair
*qpair
= cmd
->qpair
;
3992 cmd
->trc_flags
|= TRC_DO_WORK
;
3995 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf082,
3996 "cmd with tag %u is aborted\n",
3997 cmd
->atio
.u
.isp24
.exchange_addr
);
4001 spin_lock_init(&cmd
->cmd_lock
);
4002 cdb
= &atio
->u
.isp24
.fcp_cmnd
.cdb
[0];
4003 cmd
->se_cmd
.tag
= atio
->u
.isp24
.exchange_addr
;
4005 if (atio
->u
.isp24
.fcp_cmnd
.rddata
&&
4006 atio
->u
.isp24
.fcp_cmnd
.wrdata
) {
4008 data_dir
= DMA_TO_DEVICE
;
4009 } else if (atio
->u
.isp24
.fcp_cmnd
.rddata
)
4010 data_dir
= DMA_FROM_DEVICE
;
4011 else if (atio
->u
.isp24
.fcp_cmnd
.wrdata
)
4012 data_dir
= DMA_TO_DEVICE
;
4014 data_dir
= DMA_NONE
;
4016 fcp_task_attr
= qlt_get_fcp_task_attr(vha
,
4017 atio
->u
.isp24
.fcp_cmnd
.task_attr
);
4018 data_length
= be32_to_cpu(get_unaligned((uint32_t *)
4019 &atio
->u
.isp24
.fcp_cmnd
.add_cdb
[
4020 atio
->u
.isp24
.fcp_cmnd
.add_cdb_len
]));
4022 ret
= ha
->tgt
.tgt_ops
->handle_cmd(vha
, cmd
, cdb
, data_length
,
4023 fcp_task_attr
, data_dir
, bidi
);
4027 * Drop extra session reference from qla_tgt_handle_cmd_for_atio*(
4029 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
4030 ha
->tgt
.tgt_ops
->put_sess(sess
);
4031 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
4035 ql_dbg(ql_dbg_io
, vha
, 0x3060, "Terminating work cmd %p", cmd
);
4037 * cmd has not sent to target yet, so pass NULL as the second
4038 * argument to qlt_send_term_exchange() and free the memory here.
4040 cmd
->trc_flags
|= TRC_DO_WORK_ERR
;
4041 spin_lock_irqsave(qpair
->qp_lock_ptr
, flags
);
4042 qlt_send_term_exchange(qpair
, NULL
, &cmd
->atio
, 1, 0);
4044 qlt_decr_num_pend_cmds(vha
);
4045 percpu_ida_free(&sess
->se_sess
->sess_tag_pool
, cmd
->se_cmd
.map_tag
);
4046 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
4048 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
4049 ha
->tgt
.tgt_ops
->put_sess(sess
);
4050 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
4053 static void qlt_do_work(struct work_struct
*work
)
4055 struct qla_tgt_cmd
*cmd
= container_of(work
, struct qla_tgt_cmd
, work
);
4056 scsi_qla_host_t
*vha
= cmd
->vha
;
4057 unsigned long flags
;
4059 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
4060 list_del(&cmd
->cmd_list
);
4061 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
4066 void qlt_clr_qp_table(struct scsi_qla_host
*vha
)
4068 unsigned long flags
;
4069 struct qla_hw_data
*ha
= vha
->hw
;
4070 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
4074 ql_log(ql_log_info
, vha
, 0x706c,
4075 "User update Number of Active Qpairs %d\n",
4076 ha
->tgt
.num_act_qpairs
);
4078 spin_lock_irqsave(&ha
->tgt
.atio_lock
, flags
);
4080 btree_for_each_safe64(&tgt
->lun_qpair_map
, key
, node
)
4081 btree_remove64(&tgt
->lun_qpair_map
, key
);
4083 ha
->base_qpair
->lun_cnt
= 0;
4084 for (key
= 0; key
< ha
->max_qpairs
; key
++)
4085 if (ha
->queue_pair_map
[key
])
4086 ha
->queue_pair_map
[key
]->lun_cnt
= 0;
4088 spin_unlock_irqrestore(&ha
->tgt
.atio_lock
, flags
);
4091 static void qlt_assign_qpair(struct scsi_qla_host
*vha
,
4092 struct qla_tgt_cmd
*cmd
)
4094 struct qla_qpair
*qpair
, *qp
;
4095 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
4096 struct qla_qpair_hint
*h
;
4098 if (vha
->flags
.qpairs_available
) {
4099 h
= btree_lookup64(&tgt
->lun_qpair_map
, cmd
->unpacked_lun
);
4101 /* spread lun to qpair ratio evently */
4103 struct scsi_qla_host
*base_vha
=
4104 pci_get_drvdata(vha
->hw
->pdev
);
4106 qpair
= vha
->hw
->base_qpair
;
4107 if (qpair
->lun_cnt
== 0) {
4109 h
= qla_qpair_to_hint(tgt
, qpair
);
4111 rc
= btree_insert64(&tgt
->lun_qpair_map
,
4112 cmd
->unpacked_lun
, h
, GFP_ATOMIC
);
4115 ql_log(ql_log_info
, vha
, 0xd037,
4116 "Unable to insert lun %llx into lun_qpair_map\n",
4121 lcnt
= qpair
->lun_cnt
;
4125 list_for_each_entry(qp
, &base_vha
->qp_list
,
4127 if (qp
->lun_cnt
== 0) {
4129 h
= qla_qpair_to_hint(tgt
, qp
);
4131 rc
= btree_insert64(&tgt
->lun_qpair_map
,
4132 cmd
->unpacked_lun
, h
, GFP_ATOMIC
);
4135 ql_log(ql_log_info
, vha
, 0xd038,
4136 "Unable to insert lun %llx into lun_qpair_map\n",
4142 if (qp
->lun_cnt
< lcnt
) {
4151 h
= qla_qpair_to_hint(tgt
, qpair
);
4153 rc
= btree_insert64(&tgt
->lun_qpair_map
,
4154 cmd
->unpacked_lun
, h
, GFP_ATOMIC
);
4157 ql_log(ql_log_info
, vha
, 0xd039,
4158 "Unable to insert lun %llx into lun_qpair_map\n",
4163 h
= &tgt
->qphints
[0];
4166 cmd
->qpair
= h
->qpair
;
4167 cmd
->se_cmd
.cpuid
= h
->cpuid
;
4170 static struct qla_tgt_cmd
*qlt_get_tag(scsi_qla_host_t
*vha
,
4171 struct fc_port
*sess
,
4172 struct atio_from_isp
*atio
)
4174 struct se_session
*se_sess
= sess
->se_sess
;
4175 struct qla_tgt_cmd
*cmd
;
4178 tag
= percpu_ida_alloc(&se_sess
->sess_tag_pool
, TASK_RUNNING
);
4182 cmd
= &((struct qla_tgt_cmd
*)se_sess
->sess_cmd_map
)[tag
];
4183 memset(cmd
, 0, sizeof(struct qla_tgt_cmd
));
4184 cmd
->cmd_type
= TYPE_TGT_CMD
;
4185 memcpy(&cmd
->atio
, atio
, sizeof(*atio
));
4186 cmd
->state
= QLA_TGT_STATE_NEW
;
4187 cmd
->tgt
= vha
->vha_tgt
.qla_tgt
;
4188 qlt_incr_num_pend_cmds(vha
);
4190 cmd
->se_cmd
.map_tag
= tag
;
4192 cmd
->loop_id
= sess
->loop_id
;
4193 cmd
->conf_compl_supported
= sess
->conf_compl_supported
;
4196 cmd
->jiffies_at_alloc
= get_jiffies_64();
4198 cmd
->unpacked_lun
= scsilun_to_int(
4199 (struct scsi_lun
*)&atio
->u
.isp24
.fcp_cmnd
.lun
);
4200 qlt_assign_qpair(vha
, cmd
);
4201 cmd
->reset_count
= vha
->hw
->base_qpair
->chip_reset
;
4202 cmd
->vp_idx
= vha
->vp_idx
;
4207 static void qlt_create_sess_from_atio(struct work_struct
*work
)
4209 struct qla_tgt_sess_op
*op
= container_of(work
,
4210 struct qla_tgt_sess_op
, work
);
4211 scsi_qla_host_t
*vha
= op
->vha
;
4212 struct qla_hw_data
*ha
= vha
->hw
;
4213 struct fc_port
*sess
;
4214 struct qla_tgt_cmd
*cmd
;
4215 unsigned long flags
;
4216 uint8_t *s_id
= op
->atio
.u
.isp24
.fcp_hdr
.s_id
;
4218 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
4219 list_del(&op
->cmd_list
);
4220 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
4223 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf083,
4224 "sess_op with tag %u is aborted\n",
4225 op
->atio
.u
.isp24
.exchange_addr
);
4229 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf022,
4230 "qla_target(%d): Unable to find wwn login"
4231 " (s_id %x:%x:%x), trying to create it manually\n",
4232 vha
->vp_idx
, s_id
[0], s_id
[1], s_id
[2]);
4234 if (op
->atio
.u
.raw
.entry_count
> 1) {
4235 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf023,
4236 "Dropping multy entry atio %p\n", &op
->atio
);
4240 sess
= qlt_make_local_sess(vha
, s_id
);
4241 /* sess has an extra creation ref. */
4246 * Now obtain a pre-allocated session tag using the original op->atio
4247 * packet header, and dispatch into __qlt_do_work() using the existing
4250 cmd
= qlt_get_tag(vha
, sess
, &op
->atio
);
4252 struct qla_qpair
*qpair
= ha
->base_qpair
;
4254 spin_lock_irqsave(qpair
->qp_lock_ptr
, flags
);
4255 qlt_send_busy(qpair
, &op
->atio
, SAM_STAT_BUSY
);
4256 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
4258 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
4259 ha
->tgt
.tgt_ops
->put_sess(sess
);
4260 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
4266 * __qlt_do_work() will call qlt_put_sess() to release
4267 * the extra reference taken above by qlt_make_local_sess()
4273 qlt_send_term_exchange(vha
->hw
->base_qpair
, NULL
, &op
->atio
, 0, 0);
4277 /* ha->hardware_lock supposed to be held on entry */
4278 static int qlt_handle_cmd_for_atio(struct scsi_qla_host
*vha
,
4279 struct atio_from_isp
*atio
)
4281 struct qla_hw_data
*ha
= vha
->hw
;
4282 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
4283 struct fc_port
*sess
;
4284 struct qla_tgt_cmd
*cmd
;
4285 unsigned long flags
;
4287 if (unlikely(tgt
->tgt_stop
)) {
4288 ql_dbg(ql_dbg_io
, vha
, 0x3061,
4289 "New command while device %p is shutting down\n", tgt
);
4293 sess
= ha
->tgt
.tgt_ops
->find_sess_by_s_id(vha
, atio
->u
.isp24
.fcp_hdr
.s_id
);
4294 if (unlikely(!sess
)) {
4295 struct qla_tgt_sess_op
*op
= kzalloc(sizeof(struct qla_tgt_sess_op
),
4300 memcpy(&op
->atio
, atio
, sizeof(*atio
));
4303 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
4304 list_add_tail(&op
->cmd_list
, &vha
->qla_sess_op_cmd_list
);
4305 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
4307 INIT_WORK(&op
->work
, qlt_create_sess_from_atio
);
4308 queue_work(qla_tgt_wq
, &op
->work
);
4312 /* Another WWN used to have our s_id. Our PLOGI scheduled its
4313 * session deletion, but it's still in sess_del_work wq */
4314 if (sess
->deleted
) {
4315 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf002,
4316 "New command while old session %p is being deleted\n",
4322 * Do kref_get() before returning + dropping qla_hw_data->hardware_lock.
4324 if (!kref_get_unless_zero(&sess
->sess_kref
)) {
4325 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf004,
4326 "%s: kref_get fail, %8phC oxid %x \n",
4327 __func__
, sess
->port_name
,
4328 be16_to_cpu(atio
->u
.isp24
.fcp_hdr
.ox_id
));
4332 cmd
= qlt_get_tag(vha
, sess
, atio
);
4334 ql_dbg(ql_dbg_io
, vha
, 0x3062,
4335 "qla_target(%d): Allocation of cmd failed\n", vha
->vp_idx
);
4336 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
4337 ha
->tgt
.tgt_ops
->put_sess(sess
);
4338 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
4343 cmd
->trc_flags
|= TRC_NEW_CMD
;
4345 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
4346 list_add_tail(&cmd
->cmd_list
, &vha
->qla_cmd_list
);
4347 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
4349 INIT_WORK(&cmd
->work
, qlt_do_work
);
4350 if (vha
->flags
.qpairs_available
) {
4351 queue_work_on(cmd
->se_cmd
.cpuid
, qla_tgt_wq
, &cmd
->work
);
4352 } else if (ha
->msix_count
) {
4353 if (cmd
->atio
.u
.isp24
.fcp_cmnd
.rddata
)
4354 queue_work_on(smp_processor_id(), qla_tgt_wq
,
4357 queue_work_on(cmd
->se_cmd
.cpuid
, qla_tgt_wq
,
4360 queue_work(qla_tgt_wq
, &cmd
->work
);
4366 /* ha->hardware_lock supposed to be held on entry */
4367 static int qlt_issue_task_mgmt(struct fc_port
*sess
, u64 lun
,
4368 int fn
, void *iocb
, int flags
)
4370 struct scsi_qla_host
*vha
= sess
->vha
;
4371 struct qla_hw_data
*ha
= vha
->hw
;
4372 struct qla_tgt_mgmt_cmd
*mcmd
;
4373 struct atio_from_isp
*a
= (struct atio_from_isp
*)iocb
;
4376 mcmd
= mempool_alloc(qla_tgt_mgmt_cmd_mempool
, GFP_ATOMIC
);
4378 ql_dbg(ql_dbg_tgt_tmr
, vha
, 0x10009,
4379 "qla_target(%d): Allocation of management "
4380 "command failed, some commands and their data could "
4381 "leak\n", vha
->vp_idx
);
4384 memset(mcmd
, 0, sizeof(*mcmd
));
4388 memcpy(&mcmd
->orig_iocb
.imm_ntfy
, iocb
,
4389 sizeof(mcmd
->orig_iocb
.imm_ntfy
));
4391 mcmd
->tmr_func
= fn
;
4392 mcmd
->flags
= flags
;
4393 mcmd
->reset_count
= ha
->base_qpair
->chip_reset
;
4394 mcmd
->qpair
= ha
->base_qpair
;
4398 case QLA_TGT_LUN_RESET
:
4399 abort_cmds_for_lun(vha
, lun
, a
->u
.isp24
.fcp_hdr
.s_id
);
4403 res
= ha
->tgt
.tgt_ops
->handle_tmr(mcmd
, lun
, mcmd
->tmr_func
, 0);
4405 ql_dbg(ql_dbg_tgt_tmr
, vha
, 0x1000b,
4406 "qla_target(%d): tgt.tgt_ops->handle_tmr() failed: %d\n",
4407 sess
->vha
->vp_idx
, res
);
4408 mempool_free(mcmd
, qla_tgt_mgmt_cmd_mempool
);
4415 /* ha->hardware_lock supposed to be held on entry */
4416 static int qlt_handle_task_mgmt(struct scsi_qla_host
*vha
, void *iocb
)
4418 struct atio_from_isp
*a
= (struct atio_from_isp
*)iocb
;
4419 struct qla_hw_data
*ha
= vha
->hw
;
4420 struct qla_tgt
*tgt
;
4421 struct fc_port
*sess
;
4424 unsigned long flags
;
4426 tgt
= vha
->vha_tgt
.qla_tgt
;
4428 fn
= a
->u
.isp24
.fcp_cmnd
.task_mgmt_flags
;
4430 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
4431 sess
= ha
->tgt
.tgt_ops
->find_sess_by_s_id(vha
,
4432 a
->u
.isp24
.fcp_hdr
.s_id
);
4433 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
4436 scsilun_to_int((struct scsi_lun
*)&a
->u
.isp24
.fcp_cmnd
.lun
);
4439 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf024,
4440 "qla_target(%d): task mgmt fn 0x%x for "
4441 "non-existant session\n", vha
->vp_idx
, fn
);
4442 return qlt_sched_sess_work(tgt
, QLA_TGT_SESS_WORK_TM
, iocb
,
4443 sizeof(struct atio_from_isp
));
4449 return qlt_issue_task_mgmt(sess
, unpacked_lun
, fn
, iocb
, 0);
4452 /* ha->hardware_lock supposed to be held on entry */
4453 static int __qlt_abort_task(struct scsi_qla_host
*vha
,
4454 struct imm_ntfy_from_isp
*iocb
, struct fc_port
*sess
)
4456 struct atio_from_isp
*a
= (struct atio_from_isp
*)iocb
;
4457 struct qla_hw_data
*ha
= vha
->hw
;
4458 struct qla_tgt_mgmt_cmd
*mcmd
;
4462 mcmd
= mempool_alloc(qla_tgt_mgmt_cmd_mempool
, GFP_ATOMIC
);
4464 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf05f,
4465 "qla_target(%d): %s: Allocation of ABORT cmd failed\n",
4466 vha
->vp_idx
, __func__
);
4469 memset(mcmd
, 0, sizeof(*mcmd
));
4472 memcpy(&mcmd
->orig_iocb
.imm_ntfy
, iocb
,
4473 sizeof(mcmd
->orig_iocb
.imm_ntfy
));
4476 scsilun_to_int((struct scsi_lun
*)&a
->u
.isp24
.fcp_cmnd
.lun
);
4477 mcmd
->reset_count
= ha
->base_qpair
->chip_reset
;
4478 mcmd
->tmr_func
= QLA_TGT_2G_ABORT_TASK
;
4479 mcmd
->qpair
= ha
->base_qpair
;
4481 rc
= ha
->tgt
.tgt_ops
->handle_tmr(mcmd
, unpacked_lun
, mcmd
->tmr_func
,
4482 le16_to_cpu(iocb
->u
.isp2x
.seq_id
));
4484 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf060,
4485 "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
4487 mempool_free(mcmd
, qla_tgt_mgmt_cmd_mempool
);
4494 /* ha->hardware_lock supposed to be held on entry */
4495 static int qlt_abort_task(struct scsi_qla_host
*vha
,
4496 struct imm_ntfy_from_isp
*iocb
)
4498 struct qla_hw_data
*ha
= vha
->hw
;
4499 struct fc_port
*sess
;
4501 unsigned long flags
;
4503 loop_id
= GET_TARGET_ID(ha
, (struct atio_from_isp
*)iocb
);
4505 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
4506 sess
= ha
->tgt
.tgt_ops
->find_sess_by_loop_id(vha
, loop_id
);
4507 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
4510 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf025,
4511 "qla_target(%d): task abort for unexisting "
4512 "session\n", vha
->vp_idx
);
4513 return qlt_sched_sess_work(vha
->vha_tgt
.qla_tgt
,
4514 QLA_TGT_SESS_WORK_ABORT
, iocb
, sizeof(*iocb
));
4517 return __qlt_abort_task(vha
, iocb
, sess
);
4520 void qlt_logo_completion_handler(fc_port_t
*fcport
, int rc
)
4522 if (rc
!= MBS_COMMAND_COMPLETE
) {
4523 ql_dbg(ql_dbg_tgt_mgt
, fcport
->vha
, 0xf093,
4524 "%s: se_sess %p / sess %p from"
4525 " port %8phC loop_id %#04x s_id %02x:%02x:%02x"
4526 " LOGO failed: %#x\n",
4530 fcport
->port_name
, fcport
->loop_id
,
4531 fcport
->d_id
.b
.domain
, fcport
->d_id
.b
.area
,
4532 fcport
->d_id
.b
.al_pa
, rc
);
4535 fcport
->logout_completed
= 1;
4539 * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list)
4541 * Schedules sessions with matching port_id/loop_id but different wwn for
4542 * deletion. Returns existing session with matching wwn if present.
4546 qlt_find_sess_invalidate_other(scsi_qla_host_t
*vha
, uint64_t wwn
,
4547 port_id_t port_id
, uint16_t loop_id
, struct fc_port
**conflict_sess
)
4549 struct fc_port
*sess
= NULL
, *other_sess
;
4552 *conflict_sess
= NULL
;
4554 list_for_each_entry(other_sess
, &vha
->vp_fcports
, list
) {
4556 other_wwn
= wwn_to_u64(other_sess
->port_name
);
4558 if (wwn
== other_wwn
) {
4564 /* find other sess with nport_id collision */
4565 if (port_id
.b24
== other_sess
->d_id
.b24
) {
4566 if (loop_id
!= other_sess
->loop_id
) {
4567 ql_dbg(ql_dbg_tgt_tmr
, vha
, 0x1000c,
4568 "Invalidating sess %p loop_id %d wwn %llx.\n",
4569 other_sess
, other_sess
->loop_id
, other_wwn
);
4572 * logout_on_delete is set by default, but another
4573 * session that has the same s_id/loop_id combo
4574 * might have cleared it when requested this session
4575 * deletion, so don't touch it
4577 qlt_schedule_sess_for_deletion(other_sess
, true);
4580 * Another wwn used to have our s_id/loop_id
4581 * kill the session, but don't free the loop_id
4583 ql_dbg(ql_dbg_tgt_tmr
, vha
, 0xf01b,
4584 "Invalidating sess %p loop_id %d wwn %llx.\n",
4585 other_sess
, other_sess
->loop_id
, other_wwn
);
4588 other_sess
->keep_nport_handle
= 1;
4589 *conflict_sess
= other_sess
;
4590 qlt_schedule_sess_for_deletion(other_sess
,
4596 /* find other sess with nport handle collision */
4597 if ((loop_id
== other_sess
->loop_id
) &&
4598 (loop_id
!= FC_NO_LOOP_ID
)) {
4599 ql_dbg(ql_dbg_tgt_tmr
, vha
, 0x1000d,
4600 "Invalidating sess %p loop_id %d wwn %llx.\n",
4601 other_sess
, other_sess
->loop_id
, other_wwn
);
4603 /* Same loop_id but different s_id
4604 * Ok to kill and logout */
4605 qlt_schedule_sess_for_deletion(other_sess
, true);
4612 /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */
4613 static int abort_cmds_for_s_id(struct scsi_qla_host
*vha
, port_id_t
*s_id
)
4615 struct qla_tgt_sess_op
*op
;
4616 struct qla_tgt_cmd
*cmd
;
4619 unsigned long flags
;
4621 key
= (((u32
)s_id
->b
.domain
<< 16) |
4622 ((u32
)s_id
->b
.area
<< 8) |
4623 ((u32
)s_id
->b
.al_pa
));
4625 spin_lock_irqsave(&vha
->cmd_list_lock
, flags
);
4626 list_for_each_entry(op
, &vha
->qla_sess_op_cmd_list
, cmd_list
) {
4627 uint32_t op_key
= sid_to_key(op
->atio
.u
.isp24
.fcp_hdr
.s_id
);
4629 if (op_key
== key
) {
4635 list_for_each_entry(op
, &vha
->unknown_atio_list
, cmd_list
) {
4636 uint32_t op_key
= sid_to_key(op
->atio
.u
.isp24
.fcp_hdr
.s_id
);
4637 if (op_key
== key
) {
4643 list_for_each_entry(cmd
, &vha
->qla_cmd_list
, cmd_list
) {
4644 uint32_t cmd_key
= sid_to_key(cmd
->atio
.u
.isp24
.fcp_hdr
.s_id
);
4645 if (cmd_key
== key
) {
4650 spin_unlock_irqrestore(&vha
->cmd_list_lock
, flags
);
4656 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
4658 static int qlt_24xx_handle_els(struct scsi_qla_host
*vha
,
4659 struct imm_ntfy_from_isp
*iocb
)
4661 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
4662 struct qla_hw_data
*ha
= vha
->hw
;
4663 struct fc_port
*sess
= NULL
, *conflict_sess
= NULL
;
4669 struct qlt_plogi_ack_t
*pla
;
4670 unsigned long flags
;
4672 wwn
= wwn_to_u64(iocb
->u
.isp24
.port_name
);
4674 port_id
.b
.domain
= iocb
->u
.isp24
.port_id
[2];
4675 port_id
.b
.area
= iocb
->u
.isp24
.port_id
[1];
4676 port_id
.b
.al_pa
= iocb
->u
.isp24
.port_id
[0];
4677 port_id
.b
.rsvd_1
= 0;
4679 loop_id
= le16_to_cpu(iocb
->u
.isp24
.nport_handle
);
4681 ql_dbg(ql_dbg_disc
, vha
, 0xf026,
4682 "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n",
4683 vha
->vp_idx
, iocb
->u
.isp24
.port_id
[2],
4684 iocb
->u
.isp24
.port_id
[1], iocb
->u
.isp24
.port_id
[0],
4685 iocb
->u
.isp24
.status_subcode
, loop_id
,
4686 iocb
->u
.isp24
.port_name
);
4688 /* res = 1 means ack at the end of thread
4689 * res = 0 means ack async/later.
4691 switch (iocb
->u
.isp24
.status_subcode
) {
4694 /* Mark all stale commands in qla_tgt_wq for deletion */
4695 abort_cmds_for_s_id(vha
, &port_id
);
4698 spin_lock_irqsave(&tgt
->ha
->tgt
.sess_lock
, flags
);
4699 sess
= qlt_find_sess_invalidate_other(vha
, wwn
,
4700 port_id
, loop_id
, &conflict_sess
);
4701 spin_unlock_irqrestore(&tgt
->ha
->tgt
.sess_lock
, flags
);
4704 if (IS_SW_RESV_ADDR(port_id
)) {
4709 pla
= qlt_plogi_ack_find_add(vha
, &port_id
, iocb
);
4711 qlt_send_term_imm_notif(vha
, iocb
, 1);
4717 if (conflict_sess
) {
4718 conflict_sess
->login_gen
++;
4719 qlt_plogi_ack_link(vha
, pla
, conflict_sess
,
4720 QLT_PLOGI_LINK_CONFLICT
);
4725 qla24xx_post_newsess_work(vha
, &port_id
,
4726 iocb
->u
.isp24
.port_name
, pla
);
4731 qlt_plogi_ack_link(vha
, pla
, sess
, QLT_PLOGI_LINK_SAME_WWN
);
4732 sess
->fw_login_state
= DSC_LS_PLOGI_PEND
;
4733 sess
->d_id
= port_id
;
4736 switch (sess
->disc_state
) {
4738 qlt_plogi_ack_unref(vha
, pla
);
4743 * Under normal circumstances we want to release nport handle
4744 * during LOGO process to avoid nport handle leaks inside FW.
4745 * The exception is when LOGO is done while another PLOGI with
4746 * the same nport handle is waiting as might be the case here.
4747 * Note: there is always a possibily of a race where session
4748 * deletion has already started for other reasons (e.g. ACL
4749 * removal) and now PLOGI arrives:
4750 * 1. if PLOGI arrived in FW after nport handle has been freed,
4751 * FW must have assigned this PLOGI a new/same handle and we
4752 * can proceed ACK'ing it as usual when session deletion
4754 * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
4755 * bit reached it, the handle has now been released. We'll
4756 * get an error when we ACK this PLOGI. Nothing will be sent
4757 * back to initiator. Initiator should eventually retry
4758 * PLOGI and situation will correct itself.
4760 sess
->keep_nport_handle
= ((sess
->loop_id
== loop_id
) &&
4761 (sess
->d_id
.b24
== port_id
.b24
));
4763 ql_dbg(ql_dbg_disc
, vha
, 0x20f9,
4764 "%s %d %8phC post del sess\n",
4765 __func__
, __LINE__
, sess
->port_name
);
4768 qlt_schedule_sess_for_deletion_lock(sess
);
4775 wd3_lo
= le16_to_cpu(iocb
->u
.isp24
.u
.prli
.wd3_lo
);
4778 spin_lock_irqsave(&tgt
->ha
->tgt
.sess_lock
, flags
);
4779 sess
= qlt_find_sess_invalidate_other(vha
, wwn
, port_id
,
4780 loop_id
, &conflict_sess
);
4781 spin_unlock_irqrestore(&tgt
->ha
->tgt
.sess_lock
, flags
);
4784 if (conflict_sess
) {
4785 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf09b,
4786 "PRLI with conflicting sess %p port %8phC\n",
4787 conflict_sess
, conflict_sess
->port_name
);
4788 qlt_send_term_imm_notif(vha
, iocb
, 1);
4794 if (sess
->fw_login_state
!= DSC_LS_PLOGI_PEND
&&
4795 sess
->fw_login_state
!= DSC_LS_PLOGI_COMP
) {
4797 * Impatient initiator sent PRLI before last
4798 * PLOGI could finish. Will force him to re-try,
4799 * while last one finishes.
4801 ql_log(ql_log_warn
, sess
->vha
, 0xf095,
4802 "sess %p PRLI received, before plogi ack.\n",
4804 qlt_send_term_imm_notif(vha
, iocb
, 1);
4810 * This shouldn't happen under normal circumstances,
4811 * since we have deleted the old session during PLOGI
4813 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf096,
4814 "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n",
4815 sess
->loop_id
, sess
, iocb
->u
.isp24
.nport_handle
);
4818 sess
->loop_id
= loop_id
;
4819 sess
->d_id
= port_id
;
4820 sess
->fw_login_state
= DSC_LS_PRLI_PEND
;
4823 sess
->conf_compl_supported
= 1;
4825 if ((wd3_lo
& BIT_4
) == 0)
4826 sess
->port_type
= FCT_INITIATOR
;
4828 sess
->port_type
= FCT_TARGET
;
4830 res
= 1; /* send notify ack */
4832 /* Make session global (not used in fabric mode) */
4833 if (ha
->current_topology
!= ISP_CFG_F
) {
4835 ql_dbg(ql_dbg_disc
, vha
, 0x20fa,
4836 "%s %d %8phC post nack\n",
4837 __func__
, __LINE__
, sess
->port_name
);
4838 qla24xx_post_nack_work(vha
, sess
, iocb
,
4842 set_bit(LOOP_RESYNC_NEEDED
, &vha
->dpc_flags
);
4843 set_bit(LOCAL_LOOP_UPDATE
, &vha
->dpc_flags
);
4844 qla2xxx_wake_dpc(vha
);
4848 ql_dbg(ql_dbg_disc
, vha
, 0x20fb,
4849 "%s %d %8phC post nack\n",
4850 __func__
, __LINE__
, sess
->port_name
);
4851 qla24xx_post_nack_work(vha
, sess
, iocb
,
4859 if (le16_to_cpu(iocb
->u
.isp24
.flags
) &
4860 NOTIFY24XX_FLAGS_GLOBAL_TPRLO
) {
4862 qlt_reset(vha
, iocb
, QLA_TGT_NEXUS_LOSS
);
4869 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
4870 sess
= qla2x00_find_fcport_by_loopid(vha
, loop_id
);
4871 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
4875 sess
->fw_login_state
= DSC_LS_LOGO_PEND
;
4876 sess
->logo_ack_needed
= 1;
4877 memcpy(sess
->iocb
, iocb
, IOCB_SIZE
);
4880 res
= qlt_reset(vha
, iocb
, QLA_TGT_NEXUS_LOSS_SESS
);
4882 ql_dbg(ql_dbg_disc
, vha
, 0x20fc,
4883 "%s: logo %llx res %d sess %p ",
4884 __func__
, wwn
, res
, sess
);
4887 * cmd went upper layer, look for qlt_xmit_tm_rsp()
4888 * for LOGO_ACK & sess delete
4893 /* cmd did not go to upper layer. */
4895 qlt_schedule_sess_for_deletion_lock(sess
);
4898 /* else logo will be ack */
4904 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
4905 if (tgt
->link_reinit_iocb_pending
) {
4906 qlt_send_notify_ack(ha
->base_qpair
,
4907 &tgt
->link_reinit_iocb
, 0, 0, 0, 0, 0, 0);
4908 tgt
->link_reinit_iocb_pending
= 0;
4911 sess
= qla2x00_find_fcport_by_wwpn(vha
,
4912 iocb
->u
.isp24
.port_name
, 1);
4914 ql_dbg(ql_dbg_disc
, vha
, 0x20fd,
4915 "sess %p lid %d|%d DS %d LS %d\n",
4916 sess
, sess
->loop_id
, loop_id
,
4917 sess
->disc_state
, sess
->fw_login_state
);
4920 res
= 1; /* send notify ack */
4924 case ELS_FLOGI
: /* should never happen */
4926 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf061,
4927 "qla_target(%d): Unsupported ELS command %x "
4928 "received\n", vha
->vp_idx
, iocb
->u
.isp24
.status_subcode
);
4929 res
= qlt_reset(vha
, iocb
, QLA_TGT_NEXUS_LOSS_SESS
);
4937 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
4939 static void qlt_handle_imm_notify(struct scsi_qla_host
*vha
,
4940 struct imm_ntfy_from_isp
*iocb
)
4942 struct qla_hw_data
*ha
= vha
->hw
;
4943 uint32_t add_flags
= 0;
4944 int send_notify_ack
= 1;
4947 status
= le16_to_cpu(iocb
->u
.isp2x
.status
);
4949 case IMM_NTFY_LIP_RESET
:
4951 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf032,
4952 "qla_target(%d): LIP reset (loop %#x), subcode %x\n",
4953 vha
->vp_idx
, le16_to_cpu(iocb
->u
.isp24
.nport_handle
),
4954 iocb
->u
.isp24
.status_subcode
);
4956 if (qlt_reset(vha
, iocb
, QLA_TGT_ABORT_ALL
) == 0)
4957 send_notify_ack
= 0;
4961 case IMM_NTFY_LIP_LINK_REINIT
:
4963 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
4964 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf033,
4965 "qla_target(%d): LINK REINIT (loop %#x, "
4966 "subcode %x)\n", vha
->vp_idx
,
4967 le16_to_cpu(iocb
->u
.isp24
.nport_handle
),
4968 iocb
->u
.isp24
.status_subcode
);
4969 if (tgt
->link_reinit_iocb_pending
) {
4970 qlt_send_notify_ack(ha
->base_qpair
,
4971 &tgt
->link_reinit_iocb
, 0, 0, 0, 0, 0, 0);
4973 memcpy(&tgt
->link_reinit_iocb
, iocb
, sizeof(*iocb
));
4974 tgt
->link_reinit_iocb_pending
= 1;
4976 * QLogic requires to wait after LINK REINIT for possible
4977 * PDISC or ADISC ELS commands
4979 send_notify_ack
= 0;
4983 case IMM_NTFY_PORT_LOGOUT
:
4984 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf034,
4985 "qla_target(%d): Port logout (loop "
4986 "%#x, subcode %x)\n", vha
->vp_idx
,
4987 le16_to_cpu(iocb
->u
.isp24
.nport_handle
),
4988 iocb
->u
.isp24
.status_subcode
);
4990 if (qlt_reset(vha
, iocb
, QLA_TGT_NEXUS_LOSS_SESS
) == 0)
4991 send_notify_ack
= 0;
4992 /* The sessions will be cleared in the callback, if needed */
4995 case IMM_NTFY_GLBL_TPRLO
:
4996 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf035,
4997 "qla_target(%d): Global TPRLO (%x)\n", vha
->vp_idx
, status
);
4998 if (qlt_reset(vha
, iocb
, QLA_TGT_NEXUS_LOSS
) == 0)
4999 send_notify_ack
= 0;
5000 /* The sessions will be cleared in the callback, if needed */
5003 case IMM_NTFY_PORT_CONFIG
:
5004 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf036,
5005 "qla_target(%d): Port config changed (%x)\n", vha
->vp_idx
,
5007 if (qlt_reset(vha
, iocb
, QLA_TGT_ABORT_ALL
) == 0)
5008 send_notify_ack
= 0;
5009 /* The sessions will be cleared in the callback, if needed */
5012 case IMM_NTFY_GLBL_LOGO
:
5013 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf06a,
5014 "qla_target(%d): Link failure detected\n",
5016 /* I_T nexus loss */
5017 if (qlt_reset(vha
, iocb
, QLA_TGT_NEXUS_LOSS
) == 0)
5018 send_notify_ack
= 0;
5021 case IMM_NTFY_IOCB_OVERFLOW
:
5022 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf06b,
5023 "qla_target(%d): Cannot provide requested "
5024 "capability (IOCB overflowed the immediate notify "
5025 "resource count)\n", vha
->vp_idx
);
5028 case IMM_NTFY_ABORT_TASK
:
5029 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf037,
5030 "qla_target(%d): Abort Task (S %08x I %#x -> "
5031 "L %#x)\n", vha
->vp_idx
,
5032 le16_to_cpu(iocb
->u
.isp2x
.seq_id
),
5033 GET_TARGET_ID(ha
, (struct atio_from_isp
*)iocb
),
5034 le16_to_cpu(iocb
->u
.isp2x
.lun
));
5035 if (qlt_abort_task(vha
, iocb
) == 0)
5036 send_notify_ack
= 0;
5039 case IMM_NTFY_RESOURCE
:
5040 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf06c,
5041 "qla_target(%d): Out of resources, host %ld\n",
5042 vha
->vp_idx
, vha
->host_no
);
5045 case IMM_NTFY_MSG_RX
:
5046 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf038,
5047 "qla_target(%d): Immediate notify task %x\n",
5048 vha
->vp_idx
, iocb
->u
.isp2x
.task_flags
);
5049 if (qlt_handle_task_mgmt(vha
, iocb
) == 0)
5050 send_notify_ack
= 0;
5054 if (qlt_24xx_handle_els(vha
, iocb
) == 0)
5055 send_notify_ack
= 0;
5058 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf06d,
5059 "qla_target(%d): Received unknown immediate "
5060 "notify status %x\n", vha
->vp_idx
, status
);
5064 if (send_notify_ack
)
5065 qlt_send_notify_ack(ha
->base_qpair
, iocb
, add_flags
, 0, 0, 0,
5070 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5071 * This function sends busy to ISP 2xxx or 24xx.
5073 static int __qlt_send_busy(struct qla_qpair
*qpair
,
5074 struct atio_from_isp
*atio
, uint16_t status
)
5076 struct scsi_qla_host
*vha
= qpair
->vha
;
5077 struct ctio7_to_24xx
*ctio24
;
5078 struct qla_hw_data
*ha
= vha
->hw
;
5080 struct fc_port
*sess
= NULL
;
5081 unsigned long flags
;
5084 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
5085 sess
= ha
->tgt
.tgt_ops
->find_sess_by_s_id(vha
,
5086 atio
->u
.isp24
.fcp_hdr
.s_id
);
5087 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
5089 qlt_send_term_exchange(qpair
, NULL
, atio
, 1, 0);
5092 /* Sending marker isn't necessary, since we called from ISR */
5094 pkt
= (request_t
*)__qla2x00_alloc_iocbs(qpair
, NULL
);
5096 ql_dbg(ql_dbg_io
, vha
, 0x3063,
5097 "qla_target(%d): %s failed: unable to allocate "
5098 "request packet", vha
->vp_idx
, __func__
);
5102 qpair
->tgt_counters
.num_q_full_sent
++;
5103 pkt
->entry_count
= 1;
5104 pkt
->handle
= QLA_TGT_SKIP_HANDLE
| CTIO_COMPLETION_HANDLE_MARK
;
5106 ctio24
= (struct ctio7_to_24xx
*)pkt
;
5107 ctio24
->entry_type
= CTIO_TYPE7
;
5108 ctio24
->nport_handle
= sess
->loop_id
;
5109 ctio24
->timeout
= cpu_to_le16(QLA_TGT_TIMEOUT
);
5110 ctio24
->vp_index
= vha
->vp_idx
;
5111 ctio24
->initiator_id
[0] = atio
->u
.isp24
.fcp_hdr
.s_id
[2];
5112 ctio24
->initiator_id
[1] = atio
->u
.isp24
.fcp_hdr
.s_id
[1];
5113 ctio24
->initiator_id
[2] = atio
->u
.isp24
.fcp_hdr
.s_id
[0];
5114 ctio24
->exchange_addr
= atio
->u
.isp24
.exchange_addr
;
5115 temp
= (atio
->u
.isp24
.attr
<< 9) |
5116 CTIO7_FLAGS_STATUS_MODE_1
| CTIO7_FLAGS_SEND_STATUS
|
5117 CTIO7_FLAGS_DONT_RET_CTIO
;
5118 ctio24
->u
.status1
.flags
= cpu_to_le16(temp
);
5120 * CTIO from fw w/o se_cmd doesn't provide enough info to retry it,
5121 * if the explicit conformation is used.
5123 ctio24
->u
.status1
.ox_id
= swab16(atio
->u
.isp24
.fcp_hdr
.ox_id
);
5124 ctio24
->u
.status1
.scsi_status
= cpu_to_le16(status
);
5125 /* Memory Barrier */
5127 if (qpair
->reqq_start_iocbs
)
5128 qpair
->reqq_start_iocbs(qpair
);
5130 qla2x00_start_iocbs(vha
, qpair
->req
);
5135 * This routine is used to allocate a command for either a QFull condition
5136 * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go
5140 qlt_alloc_qfull_cmd(struct scsi_qla_host
*vha
,
5141 struct atio_from_isp
*atio
, uint16_t status
, int qfull
)
5143 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
5144 struct qla_hw_data
*ha
= vha
->hw
;
5145 struct fc_port
*sess
;
5146 struct se_session
*se_sess
;
5147 struct qla_tgt_cmd
*cmd
;
5149 unsigned long flags
;
5151 if (unlikely(tgt
->tgt_stop
)) {
5152 ql_dbg(ql_dbg_io
, vha
, 0x300a,
5153 "New command while device %p is shutting down\n", tgt
);
5157 if ((vha
->hw
->tgt
.num_qfull_cmds_alloc
+ 1) > MAX_QFULL_CMDS_ALLOC
) {
5158 vha
->hw
->tgt
.num_qfull_cmds_dropped
++;
5159 if (vha
->hw
->tgt
.num_qfull_cmds_dropped
>
5160 vha
->qla_stats
.stat_max_qfull_cmds_dropped
)
5161 vha
->qla_stats
.stat_max_qfull_cmds_dropped
=
5162 vha
->hw
->tgt
.num_qfull_cmds_dropped
;
5164 ql_dbg(ql_dbg_io
, vha
, 0x3068,
5165 "qla_target(%d): %s: QFull CMD dropped[%d]\n",
5166 vha
->vp_idx
, __func__
,
5167 vha
->hw
->tgt
.num_qfull_cmds_dropped
);
5169 qlt_chk_exch_leak_thresh_hold(vha
);
5173 sess
= ha
->tgt
.tgt_ops
->find_sess_by_s_id
5174 (vha
, atio
->u
.isp24
.fcp_hdr
.s_id
);
5178 se_sess
= sess
->se_sess
;
5180 tag
= percpu_ida_alloc(&se_sess
->sess_tag_pool
, TASK_RUNNING
);
5184 cmd
= &((struct qla_tgt_cmd
*)se_sess
->sess_cmd_map
)[tag
];
5186 ql_dbg(ql_dbg_io
, vha
, 0x3009,
5187 "qla_target(%d): %s: Allocation of cmd failed\n",
5188 vha
->vp_idx
, __func__
);
5190 vha
->hw
->tgt
.num_qfull_cmds_dropped
++;
5191 if (vha
->hw
->tgt
.num_qfull_cmds_dropped
>
5192 vha
->qla_stats
.stat_max_qfull_cmds_dropped
)
5193 vha
->qla_stats
.stat_max_qfull_cmds_dropped
=
5194 vha
->hw
->tgt
.num_qfull_cmds_dropped
;
5196 qlt_chk_exch_leak_thresh_hold(vha
);
5200 memset(cmd
, 0, sizeof(struct qla_tgt_cmd
));
5202 qlt_incr_num_pend_cmds(vha
);
5203 INIT_LIST_HEAD(&cmd
->cmd_list
);
5204 memcpy(&cmd
->atio
, atio
, sizeof(*atio
));
5206 cmd
->tgt
= vha
->vha_tgt
.qla_tgt
;
5208 cmd
->reset_count
= ha
->base_qpair
->chip_reset
;
5210 cmd
->qpair
= ha
->base_qpair
;
5214 /* NOTE: borrowing the state field to carry the status */
5215 cmd
->state
= status
;
5217 cmd
->term_exchg
= 1;
5219 spin_lock_irqsave(&vha
->hw
->tgt
.q_full_lock
, flags
);
5220 list_add_tail(&cmd
->cmd_list
, &vha
->hw
->tgt
.q_full_list
);
5222 vha
->hw
->tgt
.num_qfull_cmds_alloc
++;
5223 if (vha
->hw
->tgt
.num_qfull_cmds_alloc
>
5224 vha
->qla_stats
.stat_max_qfull_cmds_alloc
)
5225 vha
->qla_stats
.stat_max_qfull_cmds_alloc
=
5226 vha
->hw
->tgt
.num_qfull_cmds_alloc
;
5227 spin_unlock_irqrestore(&vha
->hw
->tgt
.q_full_lock
, flags
);
5231 qlt_free_qfull_cmds(struct qla_qpair
*qpair
)
5233 struct scsi_qla_host
*vha
= qpair
->vha
;
5234 struct qla_hw_data
*ha
= vha
->hw
;
5235 unsigned long flags
;
5236 struct qla_tgt_cmd
*cmd
, *tcmd
;
5237 struct list_head free_list
, q_full_list
;
5240 if (list_empty(&ha
->tgt
.q_full_list
))
5243 INIT_LIST_HEAD(&free_list
);
5244 INIT_LIST_HEAD(&q_full_list
);
5246 spin_lock_irqsave(&vha
->hw
->tgt
.q_full_lock
, flags
);
5247 if (list_empty(&ha
->tgt
.q_full_list
)) {
5248 spin_unlock_irqrestore(&vha
->hw
->tgt
.q_full_lock
, flags
);
5252 list_splice_init(&vha
->hw
->tgt
.q_full_list
, &q_full_list
);
5253 spin_unlock_irqrestore(&vha
->hw
->tgt
.q_full_lock
, flags
);
5255 spin_lock_irqsave(qpair
->qp_lock_ptr
, flags
);
5256 list_for_each_entry_safe(cmd
, tcmd
, &q_full_list
, cmd_list
) {
5258 /* cmd->state is a borrowed field to hold status */
5259 rc
= __qlt_send_busy(qpair
, &cmd
->atio
, cmd
->state
);
5260 else if (cmd
->term_exchg
)
5261 rc
= __qlt_send_term_exchange(qpair
, NULL
, &cmd
->atio
);
5267 ql_dbg(ql_dbg_io
, vha
, 0x3006,
5268 "%s: busy sent for ox_id[%04x]\n", __func__
,
5269 be16_to_cpu(cmd
->atio
.u
.isp24
.fcp_hdr
.ox_id
));
5270 else if (cmd
->term_exchg
)
5271 ql_dbg(ql_dbg_io
, vha
, 0x3007,
5272 "%s: Term exchg sent for ox_id[%04x]\n", __func__
,
5273 be16_to_cpu(cmd
->atio
.u
.isp24
.fcp_hdr
.ox_id
));
5275 ql_dbg(ql_dbg_io
, vha
, 0x3008,
5276 "%s: Unexpected cmd in QFull list %p\n", __func__
,
5279 list_del(&cmd
->cmd_list
);
5280 list_add_tail(&cmd
->cmd_list
, &free_list
);
5282 /* piggy back on hardware_lock for protection */
5283 vha
->hw
->tgt
.num_qfull_cmds_alloc
--;
5285 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
5289 list_for_each_entry_safe(cmd
, tcmd
, &free_list
, cmd_list
) {
5290 list_del(&cmd
->cmd_list
);
5291 /* This cmd was never sent to TCM. There is no need
5292 * to schedule free or call free_cmd
5297 if (!list_empty(&q_full_list
)) {
5298 spin_lock_irqsave(&vha
->hw
->tgt
.q_full_lock
, flags
);
5299 list_splice(&q_full_list
, &vha
->hw
->tgt
.q_full_list
);
5300 spin_unlock_irqrestore(&vha
->hw
->tgt
.q_full_lock
, flags
);
5307 qlt_send_busy(struct qla_qpair
*qpair
, struct atio_from_isp
*atio
,
5311 struct scsi_qla_host
*vha
= qpair
->vha
;
5313 rc
= __qlt_send_busy(qpair
, atio
, status
);
5315 qlt_alloc_qfull_cmd(vha
, atio
, status
, 1);
5319 qlt_chk_qfull_thresh_hold(struct scsi_qla_host
*vha
, struct qla_qpair
*qpair
,
5320 struct atio_from_isp
*atio
, uint8_t ha_locked
)
5322 struct qla_hw_data
*ha
= vha
->hw
;
5324 unsigned long flags
;
5326 if (ha
->tgt
.num_pend_cmds
< Q_FULL_THRESH_HOLD(ha
))
5330 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
5331 status
= temp_sam_status
;
5332 qlt_send_busy(qpair
, atio
, status
);
5334 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
5339 /* ha->hardware_lock supposed to be held on entry */
5340 /* called via callback from qla2xxx */
5341 static void qlt_24xx_atio_pkt(struct scsi_qla_host
*vha
,
5342 struct atio_from_isp
*atio
, uint8_t ha_locked
)
5344 struct qla_hw_data
*ha
= vha
->hw
;
5345 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
5347 unsigned long flags
;
5349 if (unlikely(tgt
== NULL
)) {
5350 ql_dbg(ql_dbg_tgt
, vha
, 0x3064,
5351 "ATIO pkt, but no tgt (ha %p)", ha
);
5355 * In tgt_stop mode we also should allow all requests to pass.
5356 * Otherwise, some commands can stuck.
5359 tgt
->atio_irq_cmd_count
++;
5361 switch (atio
->u
.raw
.entry_type
) {
5363 if (unlikely(atio
->u
.isp24
.exchange_addr
==
5364 ATIO_EXCHANGE_ADDRESS_UNKNOWN
)) {
5365 ql_dbg(ql_dbg_io
, vha
, 0x3065,
5366 "qla_target(%d): ATIO_TYPE7 "
5367 "received with UNKNOWN exchange address, "
5368 "sending QUEUE_FULL\n", vha
->vp_idx
);
5370 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
5371 qlt_send_busy(ha
->base_qpair
, atio
,
5372 SAM_STAT_TASK_SET_FULL
);
5374 spin_unlock_irqrestore(&ha
->hardware_lock
,
5379 if (likely(atio
->u
.isp24
.fcp_cmnd
.task_mgmt_flags
== 0)) {
5380 rc
= qlt_chk_qfull_thresh_hold(vha
, ha
->base_qpair
,
5383 tgt
->atio_irq_cmd_count
--;
5386 rc
= qlt_handle_cmd_for_atio(vha
, atio
);
5388 rc
= qlt_handle_task_mgmt(vha
, atio
);
5390 if (unlikely(rc
!= 0)) {
5393 spin_lock_irqsave(&ha
->hardware_lock
,
5396 #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */
5397 qlt_send_busy(ha
->base_qpair
, atio
,
5400 qlt_send_term_exchange(ha
->base_qpair
, NULL
,
5404 spin_unlock_irqrestore(
5405 &ha
->hardware_lock
, flags
);
5407 if (tgt
->tgt_stop
) {
5408 ql_dbg(ql_dbg_tgt
, vha
, 0xe059,
5409 "qla_target: Unable to send "
5410 "command to target for req, "
5413 ql_dbg(ql_dbg_tgt
, vha
, 0xe05a,
5414 "qla_target(%d): Unable to send "
5415 "command to target, sending BUSY "
5416 "status.\n", vha
->vp_idx
);
5419 &ha
->hardware_lock
, flags
);
5420 qlt_send_busy(ha
->base_qpair
,
5421 atio
, SAM_STAT_BUSY
);
5423 spin_unlock_irqrestore(
5424 &ha
->hardware_lock
, flags
);
5430 case IMMED_NOTIFY_TYPE
:
5432 if (unlikely(atio
->u
.isp2x
.entry_status
!= 0)) {
5433 ql_dbg(ql_dbg_tgt
, vha
, 0xe05b,
5434 "qla_target(%d): Received ATIO packet %x "
5435 "with error status %x\n", vha
->vp_idx
,
5436 atio
->u
.raw
.entry_type
,
5437 atio
->u
.isp2x
.entry_status
);
5440 ql_dbg(ql_dbg_tgt
, vha
, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
5443 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
5444 qlt_handle_imm_notify(vha
, (struct imm_ntfy_from_isp
*)atio
);
5446 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
5451 ql_dbg(ql_dbg_tgt
, vha
, 0xe05c,
5452 "qla_target(%d): Received unknown ATIO atio "
5453 "type %x\n", vha
->vp_idx
, atio
->u
.raw
.entry_type
);
5457 tgt
->atio_irq_cmd_count
--;
5460 /* ha->hardware_lock supposed to be held on entry */
5461 /* called via callback from qla2xxx */
5462 static void qlt_response_pkt(struct scsi_qla_host
*vha
,
5463 struct rsp_que
*rsp
, response_t
*pkt
)
5465 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
5467 if (unlikely(tgt
== NULL
)) {
5468 ql_dbg(ql_dbg_tgt
, vha
, 0xe05d,
5469 "qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
5470 vha
->vp_idx
, pkt
->entry_type
, vha
->hw
);
5475 * In tgt_stop mode we also should allow all requests to pass.
5476 * Otherwise, some commands can stuck.
5479 switch (pkt
->entry_type
) {
5483 struct ctio7_from_24xx
*entry
= (struct ctio7_from_24xx
*)pkt
;
5484 qlt_do_ctio_completion(vha
, rsp
, entry
->handle
,
5485 le16_to_cpu(entry
->status
)|(pkt
->entry_status
<< 16),
5490 case ACCEPT_TGT_IO_TYPE
:
5492 struct atio_from_isp
*atio
= (struct atio_from_isp
*)pkt
;
5494 if (atio
->u
.isp2x
.status
!=
5495 cpu_to_le16(ATIO_CDB_VALID
)) {
5496 ql_dbg(ql_dbg_tgt
, vha
, 0xe05e,
5497 "qla_target(%d): ATIO with error "
5498 "status %x received\n", vha
->vp_idx
,
5499 le16_to_cpu(atio
->u
.isp2x
.status
));
5503 rc
= qlt_chk_qfull_thresh_hold(vha
, rsp
->qpair
, atio
, 1);
5507 rc
= qlt_handle_cmd_for_atio(vha
, atio
);
5508 if (unlikely(rc
!= 0)) {
5510 #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */
5511 qlt_send_busy(rsp
->qpair
, atio
, 0);
5513 qlt_send_term_exchange(rsp
->qpair
, NULL
, atio
, 1, 0);
5516 if (tgt
->tgt_stop
) {
5517 ql_dbg(ql_dbg_tgt
, vha
, 0xe05f,
5518 "qla_target: Unable to send "
5519 "command to target, sending TERM "
5520 "EXCHANGE for rsp\n");
5521 qlt_send_term_exchange(rsp
->qpair
, NULL
,
5524 ql_dbg(ql_dbg_tgt
, vha
, 0xe060,
5525 "qla_target(%d): Unable to send "
5526 "command to target, sending BUSY "
5527 "status\n", vha
->vp_idx
);
5528 qlt_send_busy(rsp
->qpair
, atio
, 0);
5535 case CONTINUE_TGT_IO_TYPE
:
5537 struct ctio_to_2xxx
*entry
= (struct ctio_to_2xxx
*)pkt
;
5538 qlt_do_ctio_completion(vha
, rsp
, entry
->handle
,
5539 le16_to_cpu(entry
->status
)|(pkt
->entry_status
<< 16),
5546 struct ctio_to_2xxx
*entry
= (struct ctio_to_2xxx
*)pkt
;
5547 qlt_do_ctio_completion(vha
, rsp
, entry
->handle
,
5548 le16_to_cpu(entry
->status
)|(pkt
->entry_status
<< 16),
5553 case IMMED_NOTIFY_TYPE
:
5554 ql_dbg(ql_dbg_tgt
, vha
, 0xe035, "%s", "IMMED_NOTIFY\n");
5555 qlt_handle_imm_notify(vha
, (struct imm_ntfy_from_isp
*)pkt
);
5558 case NOTIFY_ACK_TYPE
:
5559 if (tgt
->notify_ack_expected
> 0) {
5560 struct nack_to_isp
*entry
= (struct nack_to_isp
*)pkt
;
5561 ql_dbg(ql_dbg_tgt
, vha
, 0xe036,
5562 "NOTIFY_ACK seq %08x status %x\n",
5563 le16_to_cpu(entry
->u
.isp2x
.seq_id
),
5564 le16_to_cpu(entry
->u
.isp2x
.status
));
5565 tgt
->notify_ack_expected
--;
5566 if (entry
->u
.isp2x
.status
!=
5567 cpu_to_le16(NOTIFY_ACK_SUCCESS
)) {
5568 ql_dbg(ql_dbg_tgt
, vha
, 0xe061,
5569 "qla_target(%d): NOTIFY_ACK "
5570 "failed %x\n", vha
->vp_idx
,
5571 le16_to_cpu(entry
->u
.isp2x
.status
));
5574 ql_dbg(ql_dbg_tgt
, vha
, 0xe062,
5575 "qla_target(%d): Unexpected NOTIFY_ACK received\n",
5580 case ABTS_RECV_24XX
:
5581 ql_dbg(ql_dbg_tgt
, vha
, 0xe037,
5582 "ABTS_RECV_24XX: instance %d\n", vha
->vp_idx
);
5583 qlt_24xx_handle_abts(vha
, (struct abts_recv_from_24xx
*)pkt
);
5586 case ABTS_RESP_24XX
:
5587 if (tgt
->abts_resp_expected
> 0) {
5588 struct abts_resp_from_24xx_fw
*entry
=
5589 (struct abts_resp_from_24xx_fw
*)pkt
;
5590 ql_dbg(ql_dbg_tgt
, vha
, 0xe038,
5591 "ABTS_RESP_24XX: compl_status %x\n",
5592 entry
->compl_status
);
5593 tgt
->abts_resp_expected
--;
5594 if (le16_to_cpu(entry
->compl_status
) !=
5595 ABTS_RESP_COMPL_SUCCESS
) {
5596 if ((entry
->error_subcode1
== 0x1E) &&
5597 (entry
->error_subcode2
== 0)) {
5599 * We've got a race here: aborted
5600 * exchange not terminated, i.e.
5601 * response for the aborted command was
5602 * sent between the abort request was
5603 * received and processed.
5604 * Unfortunately, the firmware has a
5605 * silly requirement that all aborted
5606 * exchanges must be explicitely
5607 * terminated, otherwise it refuses to
5608 * send responses for the abort
5609 * requests. So, we have to
5610 * (re)terminate the exchange and retry
5611 * the abort response.
5613 qlt_24xx_retry_term_exchange(vha
,
5616 ql_dbg(ql_dbg_tgt
, vha
, 0xe063,
5617 "qla_target(%d): ABTS_RESP_24XX "
5618 "failed %x (subcode %x:%x)",
5619 vha
->vp_idx
, entry
->compl_status
,
5620 entry
->error_subcode1
,
5621 entry
->error_subcode2
);
5624 ql_dbg(ql_dbg_tgt
, vha
, 0xe064,
5625 "qla_target(%d): Unexpected ABTS_RESP_24XX "
5626 "received\n", vha
->vp_idx
);
5631 ql_dbg(ql_dbg_tgt
, vha
, 0xe065,
5632 "qla_target(%d): Received unknown response pkt "
5633 "type %x\n", vha
->vp_idx
, pkt
->entry_type
);
5640 * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
5642 void qlt_async_event(uint16_t code
, struct scsi_qla_host
*vha
,
5645 struct qla_hw_data
*ha
= vha
->hw
;
5646 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
5649 if (!tgt
|| tgt
->tgt_stop
|| tgt
->tgt_stopped
)
5652 if (((code
== MBA_POINT_TO_POINT
) || (code
== MBA_CHG_IN_CONNECTION
)) &&
5656 * In tgt_stop mode we also should allow all requests to pass.
5657 * Otherwise, some commands can stuck.
5662 case MBA_RESET
: /* Reset */
5663 case MBA_SYSTEM_ERR
: /* System Error */
5664 case MBA_REQ_TRANSFER_ERR
: /* Request Transfer Error */
5665 case MBA_RSP_TRANSFER_ERR
: /* Response Transfer Error */
5666 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf03a,
5667 "qla_target(%d): System error async event %#x "
5668 "occurred", vha
->vp_idx
, code
);
5670 case MBA_WAKEUP_THRES
: /* Request Queue Wake-up. */
5671 set_bit(ISP_ABORT_NEEDED
, &vha
->dpc_flags
);
5676 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf03b,
5677 "qla_target(%d): Async LOOP_UP occurred "
5678 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha
->vp_idx
,
5679 le16_to_cpu(mailbox
[0]), le16_to_cpu(mailbox
[1]),
5680 le16_to_cpu(mailbox
[2]), le16_to_cpu(mailbox
[3]));
5681 if (tgt
->link_reinit_iocb_pending
) {
5682 qlt_send_notify_ack(ha
->base_qpair
,
5683 (void *)&tgt
->link_reinit_iocb
,
5685 tgt
->link_reinit_iocb_pending
= 0;
5690 case MBA_LIP_OCCURRED
:
5693 case MBA_RSCN_UPDATE
:
5694 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf03c,
5695 "qla_target(%d): Async event %#x occurred "
5696 "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha
->vp_idx
, code
,
5697 le16_to_cpu(mailbox
[0]), le16_to_cpu(mailbox
[1]),
5698 le16_to_cpu(mailbox
[2]), le16_to_cpu(mailbox
[3]));
5701 case MBA_REJECTED_FCP_CMD
:
5702 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf017,
5703 "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)",
5705 le16_to_cpu(mailbox
[0]), le16_to_cpu(mailbox
[1]),
5706 le16_to_cpu(mailbox
[2]), le16_to_cpu(mailbox
[3]));
5708 if (le16_to_cpu(mailbox
[3]) == 1) {
5709 /* exchange starvation. */
5710 vha
->hw
->exch_starvation
++;
5711 if (vha
->hw
->exch_starvation
> 5) {
5712 ql_log(ql_log_warn
, vha
, 0xd03a,
5713 "Exchange starvation-. Resetting RISC\n");
5715 vha
->hw
->exch_starvation
= 0;
5716 if (IS_P3P_TYPE(vha
->hw
))
5717 set_bit(FCOE_CTX_RESET_NEEDED
,
5720 set_bit(ISP_ABORT_NEEDED
,
5722 qla2xxx_wake_dpc(vha
);
5727 case MBA_PORT_UPDATE
:
5728 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf03d,
5729 "qla_target(%d): Port update async event %#x "
5730 "occurred: updating the ports database (m[0]=%x, m[1]=%x, "
5731 "m[2]=%x, m[3]=%x)", vha
->vp_idx
, code
,
5732 le16_to_cpu(mailbox
[0]), le16_to_cpu(mailbox
[1]),
5733 le16_to_cpu(mailbox
[2]), le16_to_cpu(mailbox
[3]));
5735 login_code
= le16_to_cpu(mailbox
[2]);
5736 if (login_code
== 0x4) {
5737 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf03e,
5738 "Async MB 2: Got PLOGI Complete\n");
5739 vha
->hw
->exch_starvation
= 0;
5740 } else if (login_code
== 0x7)
5741 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf03f,
5742 "Async MB 2: Port Logged Out\n");
5750 static fc_port_t
*qlt_get_port_database(struct scsi_qla_host
*vha
,
5753 fc_port_t
*fcport
, *tfcp
, *del
;
5755 unsigned long flags
;
5758 fcport
= kzalloc(sizeof(*fcport
), GFP_KERNEL
);
5760 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf06f,
5761 "qla_target(%d): Allocation of tmp FC port failed",
5766 fcport
->loop_id
= loop_id
;
5768 rc
= qla24xx_gpdb_wait(vha
, fcport
, 0);
5769 if (rc
!= QLA_SUCCESS
) {
5770 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf070,
5771 "qla_target(%d): Failed to retrieve fcport "
5772 "information -- get_port_database() returned %x "
5773 "(loop_id=0x%04x)", vha
->vp_idx
, rc
, loop_id
);
5779 spin_lock_irqsave(&vha
->hw
->tgt
.sess_lock
, flags
);
5780 tfcp
= qla2x00_find_fcport_by_wwpn(vha
, fcport
->port_name
, 1);
5783 tfcp
->d_id
= fcport
->d_id
;
5784 tfcp
->port_type
= fcport
->port_type
;
5785 tfcp
->supported_classes
= fcport
->supported_classes
;
5786 tfcp
->flags
|= fcport
->flags
;
5791 if (vha
->hw
->current_topology
== ISP_CFG_F
)
5792 fcport
->flags
|= FCF_FABRIC_DEVICE
;
5794 list_add_tail(&fcport
->list
, &vha
->vp_fcports
);
5795 if (!IS_SW_RESV_ADDR(fcport
->d_id
))
5796 vha
->fcport_count
++;
5797 fcport
->login_gen
++;
5798 fcport
->disc_state
= DSC_LOGIN_COMPLETE
;
5799 fcport
->login_succ
= 1;
5803 fcport
->deleted
= 0;
5804 spin_unlock_irqrestore(&vha
->hw
->tgt
.sess_lock
, flags
);
5806 switch (vha
->host
->active_mode
) {
5807 case MODE_INITIATOR
:
5810 if (!IS_IIDMA_CAPABLE(vha
->hw
) || !vha
->hw
->flags
.gpsc_supported
) {
5811 ql_dbg(ql_dbg_disc
, vha
, 0x20fe,
5812 "%s %d %8phC post upd_fcport fcp_cnt %d\n",
5813 __func__
, __LINE__
, fcport
->port_name
, vha
->fcport_count
);
5814 qla24xx_post_upd_fcport_work(vha
, fcport
);
5816 ql_dbg(ql_dbg_disc
, vha
, 0x20ff,
5817 "%s %d %8phC post gpsc fcp_cnt %d\n",
5818 __func__
, __LINE__
, fcport
->port_name
, vha
->fcport_count
);
5819 qla24xx_post_gpsc_work(vha
, fcport
);
5829 qla2x00_free_fcport(del
);
5834 /* Must be called under tgt_mutex */
5835 static struct fc_port
*qlt_make_local_sess(struct scsi_qla_host
*vha
,
5838 struct fc_port
*sess
= NULL
;
5839 fc_port_t
*fcport
= NULL
;
5840 int rc
, global_resets
;
5841 uint16_t loop_id
= 0;
5843 if ((s_id
[0] == 0xFF) && (s_id
[1] == 0xFC)) {
5845 * This is Domain Controller, so it should be
5846 * OK to drop SCSI commands from it.
5848 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf042,
5849 "Unable to find initiator with S_ID %x:%x:%x",
5850 s_id
[0], s_id
[1], s_id
[2]);
5854 mutex_lock(&vha
->vha_tgt
.tgt_mutex
);
5858 atomic_read(&vha
->vha_tgt
.qla_tgt
->tgt_global_resets_count
);
5860 rc
= qla24xx_get_loop_id(vha
, s_id
, &loop_id
);
5862 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
5864 ql_log(ql_log_info
, vha
, 0xf071,
5865 "qla_target(%d): Unable to find "
5866 "initiator with S_ID %x:%x:%x",
5867 vha
->vp_idx
, s_id
[0], s_id
[1],
5870 if (rc
== -ENOENT
) {
5871 qlt_port_logo_t logo
;
5872 sid_to_portid(s_id
, &logo
.id
);
5874 qlt_send_first_logo(vha
, &logo
);
5880 fcport
= qlt_get_port_database(vha
, loop_id
);
5882 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
5886 if (global_resets
!=
5887 atomic_read(&vha
->vha_tgt
.qla_tgt
->tgt_global_resets_count
)) {
5888 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf043,
5889 "qla_target(%d): global reset during session discovery "
5890 "(counter was %d, new %d), retrying", vha
->vp_idx
,
5892 atomic_read(&vha
->vha_tgt
.
5893 qla_tgt
->tgt_global_resets_count
));
5897 sess
= qlt_create_sess(vha
, fcport
, true);
5899 mutex_unlock(&vha
->vha_tgt
.tgt_mutex
);
5904 static void qlt_abort_work(struct qla_tgt
*tgt
,
5905 struct qla_tgt_sess_work_param
*prm
)
5907 struct scsi_qla_host
*vha
= tgt
->vha
;
5908 struct qla_hw_data
*ha
= vha
->hw
;
5909 struct fc_port
*sess
= NULL
;
5910 unsigned long flags
= 0, flags2
= 0;
5915 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags2
);
5920 s_id
[0] = prm
->abts
.fcp_hdr_le
.s_id
[2];
5921 s_id
[1] = prm
->abts
.fcp_hdr_le
.s_id
[1];
5922 s_id
[2] = prm
->abts
.fcp_hdr_le
.s_id
[0];
5924 sess
= ha
->tgt
.tgt_ops
->find_sess_by_s_id(vha
,
5925 (unsigned char *)&be_s_id
);
5927 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags2
);
5929 sess
= qlt_make_local_sess(vha
, s_id
);
5930 /* sess has got an extra creation ref */
5932 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags2
);
5936 if (sess
->deleted
) {
5941 if (!kref_get_unless_zero(&sess
->sess_kref
)) {
5942 ql_dbg(ql_dbg_tgt_tmr
, vha
, 0xf01c,
5943 "%s: kref_get fail %8phC \n",
5944 __func__
, sess
->port_name
);
5950 rc
= __qlt_24xx_handle_abts(vha
, &prm
->abts
, sess
);
5951 ha
->tgt
.tgt_ops
->put_sess(sess
);
5952 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags2
);
5960 ha
->tgt
.tgt_ops
->put_sess(sess
);
5961 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags2
);
5964 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
5965 qlt_24xx_send_abts_resp(ha
->base_qpair
, &prm
->abts
,
5966 FCP_TMF_REJECTED
, false);
5967 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
5970 static void qlt_tmr_work(struct qla_tgt
*tgt
,
5971 struct qla_tgt_sess_work_param
*prm
)
5973 struct atio_from_isp
*a
= &prm
->tm_iocb2
;
5974 struct scsi_qla_host
*vha
= tgt
->vha
;
5975 struct qla_hw_data
*ha
= vha
->hw
;
5976 struct fc_port
*sess
= NULL
;
5977 unsigned long flags
;
5978 uint8_t *s_id
= NULL
; /* to hide compiler warnings */
5984 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
5989 s_id
= prm
->tm_iocb2
.u
.isp24
.fcp_hdr
.s_id
;
5990 sess
= ha
->tgt
.tgt_ops
->find_sess_by_s_id(vha
, s_id
);
5992 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
5994 sess
= qlt_make_local_sess(vha
, s_id
);
5995 /* sess has got an extra creation ref */
5997 spin_lock_irqsave(&ha
->tgt
.sess_lock
, flags
);
6001 if (sess
->deleted
) {
6006 if (!kref_get_unless_zero(&sess
->sess_kref
)) {
6007 ql_dbg(ql_dbg_tgt_tmr
, vha
, 0xf020,
6008 "%s: kref_get fail %8phC\n",
6009 __func__
, sess
->port_name
);
6016 fn
= a
->u
.isp24
.fcp_cmnd
.task_mgmt_flags
;
6018 scsilun_to_int((struct scsi_lun
*)&a
->u
.isp24
.fcp_cmnd
.lun
);
6020 rc
= qlt_issue_task_mgmt(sess
, unpacked_lun
, fn
, iocb
, 0);
6021 ha
->tgt
.tgt_ops
->put_sess(sess
);
6022 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
6030 ha
->tgt
.tgt_ops
->put_sess(sess
);
6031 spin_unlock_irqrestore(&ha
->tgt
.sess_lock
, flags
);
6033 qlt_send_term_exchange(ha
->base_qpair
, NULL
, &prm
->tm_iocb2
, 1, 0);
6036 static void qlt_sess_work_fn(struct work_struct
*work
)
6038 struct qla_tgt
*tgt
= container_of(work
, struct qla_tgt
, sess_work
);
6039 struct scsi_qla_host
*vha
= tgt
->vha
;
6040 unsigned long flags
;
6042 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf000, "Sess work (tgt %p)", tgt
);
6044 spin_lock_irqsave(&tgt
->sess_work_lock
, flags
);
6045 while (!list_empty(&tgt
->sess_works_list
)) {
6046 struct qla_tgt_sess_work_param
*prm
= list_entry(
6047 tgt
->sess_works_list
.next
, typeof(*prm
),
6048 sess_works_list_entry
);
6051 * This work can be scheduled on several CPUs at time, so we
6052 * must delete the entry to eliminate double processing
6054 list_del(&prm
->sess_works_list_entry
);
6056 spin_unlock_irqrestore(&tgt
->sess_work_lock
, flags
);
6058 switch (prm
->type
) {
6059 case QLA_TGT_SESS_WORK_ABORT
:
6060 qlt_abort_work(tgt
, prm
);
6062 case QLA_TGT_SESS_WORK_TM
:
6063 qlt_tmr_work(tgt
, prm
);
6070 spin_lock_irqsave(&tgt
->sess_work_lock
, flags
);
6074 spin_unlock_irqrestore(&tgt
->sess_work_lock
, flags
);
6077 /* Must be called under tgt_host_action_mutex */
6078 int qlt_add_target(struct qla_hw_data
*ha
, struct scsi_qla_host
*base_vha
)
6080 struct qla_tgt
*tgt
;
6082 struct qla_qpair_hint
*h
;
6084 if (!QLA_TGT_MODE_ENABLED())
6087 if (!IS_TGT_MODE_CAPABLE(ha
)) {
6088 ql_log(ql_log_warn
, base_vha
, 0xe070,
6089 "This adapter does not support target mode.\n");
6093 ql_dbg(ql_dbg_tgt
, base_vha
, 0xe03b,
6094 "Registering target for host %ld(%p).\n", base_vha
->host_no
, ha
);
6096 BUG_ON(base_vha
->vha_tgt
.qla_tgt
!= NULL
);
6098 tgt
= kzalloc(sizeof(struct qla_tgt
), GFP_KERNEL
);
6100 ql_dbg(ql_dbg_tgt
, base_vha
, 0xe066,
6101 "Unable to allocate struct qla_tgt\n");
6105 tgt
->qphints
= kzalloc((ha
->max_qpairs
+ 1) *
6106 sizeof(struct qla_qpair_hint
), GFP_KERNEL
);
6107 if (!tgt
->qphints
) {
6109 ql_log(ql_log_warn
, base_vha
, 0x0197,
6110 "Unable to allocate qpair hints.\n");
6114 if (!(base_vha
->host
->hostt
->supported_mode
& MODE_TARGET
))
6115 base_vha
->host
->hostt
->supported_mode
|= MODE_TARGET
;
6117 rc
= btree_init64(&tgt
->lun_qpair_map
);
6119 kfree(tgt
->qphints
);
6121 ql_log(ql_log_info
, base_vha
, 0x0198,
6122 "Unable to initialize lun_qpair_map btree\n");
6125 h
= &tgt
->qphints
[0];
6126 h
->qpair
= ha
->base_qpair
;
6127 INIT_LIST_HEAD(&h
->hint_elem
);
6128 h
->cpuid
= ha
->base_qpair
->cpuid
;
6129 list_add_tail(&h
->hint_elem
, &ha
->base_qpair
->hints_list
);
6131 for (i
= 0; i
< ha
->max_qpairs
; i
++) {
6132 unsigned long flags
;
6134 struct qla_qpair
*qpair
= ha
->queue_pair_map
[i
];
6135 h
= &tgt
->qphints
[i
+ 1];
6136 INIT_LIST_HEAD(&h
->hint_elem
);
6139 spin_lock_irqsave(qpair
->qp_lock_ptr
, flags
);
6140 list_add_tail(&h
->hint_elem
, &qpair
->hints_list
);
6141 spin_unlock_irqrestore(qpair
->qp_lock_ptr
, flags
);
6142 h
->cpuid
= qpair
->cpuid
;
6147 tgt
->vha
= base_vha
;
6148 init_waitqueue_head(&tgt
->waitQ
);
6149 INIT_LIST_HEAD(&tgt
->del_sess_list
);
6150 spin_lock_init(&tgt
->sess_work_lock
);
6151 INIT_WORK(&tgt
->sess_work
, qlt_sess_work_fn
);
6152 INIT_LIST_HEAD(&tgt
->sess_works_list
);
6153 atomic_set(&tgt
->tgt_global_resets_count
, 0);
6155 base_vha
->vha_tgt
.qla_tgt
= tgt
;
6157 ql_dbg(ql_dbg_tgt
, base_vha
, 0xe067,
6158 "qla_target(%d): using 64 Bit PCI addressing",
6161 tgt
->sg_tablesize
= QLA_TGT_MAX_SG_24XX(base_vha
->req
->length
- 3);
6163 mutex_lock(&qla_tgt_mutex
);
6164 list_add_tail(&tgt
->tgt_list_entry
, &qla_tgt_glist
);
6165 mutex_unlock(&qla_tgt_mutex
);
6167 if (ha
->tgt
.tgt_ops
&& ha
->tgt
.tgt_ops
->add_target
)
6168 ha
->tgt
.tgt_ops
->add_target(base_vha
);
6173 /* Must be called under tgt_host_action_mutex */
6174 int qlt_remove_target(struct qla_hw_data
*ha
, struct scsi_qla_host
*vha
)
6176 if (!vha
->vha_tgt
.qla_tgt
)
6179 if (vha
->fc_vport
) {
6180 qlt_release(vha
->vha_tgt
.qla_tgt
);
6184 /* free left over qfull cmds */
6185 qlt_init_term_exchange(vha
);
6187 ql_dbg(ql_dbg_tgt
, vha
, 0xe03c, "Unregistering target for host %ld(%p)",
6189 qlt_release(vha
->vha_tgt
.qla_tgt
);
6194 void qlt_remove_target_resources(struct qla_hw_data
*ha
)
6196 struct scsi_qla_host
*node
;
6199 btree_for_each_safe32(&ha
->tgt
.host_map
, key
, node
)
6200 btree_remove32(&ha
->tgt
.host_map
, key
);
6202 btree_destroy32(&ha
->tgt
.host_map
);
6205 static void qlt_lport_dump(struct scsi_qla_host
*vha
, u64 wwpn
,
6210 pr_debug("qla2xxx HW vha->node_name: ");
6211 for (i
= 0; i
< WWN_SIZE
; i
++)
6212 pr_debug("%02x ", vha
->node_name
[i
]);
6214 pr_debug("qla2xxx HW vha->port_name: ");
6215 for (i
= 0; i
< WWN_SIZE
; i
++)
6216 pr_debug("%02x ", vha
->port_name
[i
]);
6219 pr_debug("qla2xxx passed configfs WWPN: ");
6220 put_unaligned_be64(wwpn
, b
);
6221 for (i
= 0; i
< WWN_SIZE
; i
++)
6222 pr_debug("%02x ", b
[i
]);
6227 * qla_tgt_lport_register - register lport with external module
6229 * @qla_tgt_ops: Pointer for tcm_qla2xxx qla_tgt_ops
6230 * @wwpn: Passwd FC target WWPN
6231 * @callback: lport initialization callback for tcm_qla2xxx code
6232 * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data
6234 int qlt_lport_register(void *target_lport_ptr
, u64 phys_wwpn
,
6235 u64 npiv_wwpn
, u64 npiv_wwnn
,
6236 int (*callback
)(struct scsi_qla_host
*, void *, u64
, u64
))
6238 struct qla_tgt
*tgt
;
6239 struct scsi_qla_host
*vha
;
6240 struct qla_hw_data
*ha
;
6241 struct Scsi_Host
*host
;
6242 unsigned long flags
;
6246 mutex_lock(&qla_tgt_mutex
);
6247 list_for_each_entry(tgt
, &qla_tgt_glist
, tgt_list_entry
) {
6255 if (!(host
->hostt
->supported_mode
& MODE_TARGET
))
6258 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
6259 if ((!npiv_wwpn
|| !npiv_wwnn
) && host
->active_mode
& MODE_TARGET
) {
6260 pr_debug("MODE_TARGET already active on qla2xxx(%d)\n",
6262 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
6265 if (tgt
->tgt_stop
) {
6266 pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n",
6268 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
6271 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
6273 if (!scsi_host_get(host
)) {
6274 ql_dbg(ql_dbg_tgt
, vha
, 0xe068,
6275 "Unable to scsi_host_get() for"
6276 " qla2xxx scsi_host\n");
6279 qlt_lport_dump(vha
, phys_wwpn
, b
);
6281 if (memcmp(vha
->port_name
, b
, WWN_SIZE
)) {
6282 scsi_host_put(host
);
6285 rc
= (*callback
)(vha
, target_lport_ptr
, npiv_wwpn
, npiv_wwnn
);
6287 scsi_host_put(host
);
6289 mutex_unlock(&qla_tgt_mutex
);
6292 mutex_unlock(&qla_tgt_mutex
);
6296 EXPORT_SYMBOL(qlt_lport_register
);
6299 * qla_tgt_lport_deregister - Degister lport
6301 * @vha: Registered scsi_qla_host pointer
6303 void qlt_lport_deregister(struct scsi_qla_host
*vha
)
6305 struct qla_hw_data
*ha
= vha
->hw
;
6306 struct Scsi_Host
*sh
= vha
->host
;
6308 * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data
6310 vha
->vha_tgt
.target_lport_ptr
= NULL
;
6311 ha
->tgt
.tgt_ops
= NULL
;
6313 * Release the Scsi_Host reference for the underlying qla2xxx host
6317 EXPORT_SYMBOL(qlt_lport_deregister
);
6319 /* Must be called under HW lock */
6320 static void qlt_set_mode(struct scsi_qla_host
*vha
)
6322 switch (ql2x_ini_mode
) {
6323 case QLA2XXX_INI_MODE_DISABLED
:
6324 case QLA2XXX_INI_MODE_EXCLUSIVE
:
6325 vha
->host
->active_mode
= MODE_TARGET
;
6327 case QLA2XXX_INI_MODE_ENABLED
:
6328 vha
->host
->active_mode
= MODE_UNKNOWN
;
6330 case QLA2XXX_INI_MODE_DUAL
:
6331 vha
->host
->active_mode
= MODE_DUAL
;
6338 /* Must be called under HW lock */
6339 static void qlt_clear_mode(struct scsi_qla_host
*vha
)
6341 switch (ql2x_ini_mode
) {
6342 case QLA2XXX_INI_MODE_DISABLED
:
6343 vha
->host
->active_mode
= MODE_UNKNOWN
;
6345 case QLA2XXX_INI_MODE_EXCLUSIVE
:
6346 vha
->host
->active_mode
= MODE_INITIATOR
;
6348 case QLA2XXX_INI_MODE_ENABLED
:
6349 case QLA2XXX_INI_MODE_DUAL
:
6350 vha
->host
->active_mode
= MODE_INITIATOR
;
6358 * qla_tgt_enable_vha - NO LOCK HELD
6360 * host_reset, bring up w/ Target Mode Enabled
6363 qlt_enable_vha(struct scsi_qla_host
*vha
)
6365 struct qla_hw_data
*ha
= vha
->hw
;
6366 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
6367 unsigned long flags
;
6368 scsi_qla_host_t
*base_vha
= pci_get_drvdata(ha
->pdev
);
6371 ql_dbg(ql_dbg_tgt
, vha
, 0xe069,
6372 "Unable to locate qla_tgt pointer from"
6373 " struct qla_hw_data\n");
6378 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
6379 tgt
->tgt_stopped
= 0;
6381 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
6384 qla24xx_disable_vp(vha
);
6385 qla24xx_enable_vp(vha
);
6387 set_bit(ISP_ABORT_NEEDED
, &base_vha
->dpc_flags
);
6388 qla2xxx_wake_dpc(base_vha
);
6389 qla2x00_wait_for_hba_online(base_vha
);
6392 EXPORT_SYMBOL(qlt_enable_vha
);
6395 * qla_tgt_disable_vha - NO LOCK HELD
6397 * Disable Target Mode and reset the adapter
6399 static void qlt_disable_vha(struct scsi_qla_host
*vha
)
6401 struct qla_hw_data
*ha
= vha
->hw
;
6402 struct qla_tgt
*tgt
= vha
->vha_tgt
.qla_tgt
;
6403 unsigned long flags
;
6406 ql_dbg(ql_dbg_tgt
, vha
, 0xe06a,
6407 "Unable to locate qla_tgt pointer from"
6408 " struct qla_hw_data\n");
6413 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
6414 qlt_clear_mode(vha
);
6415 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
6417 set_bit(ISP_ABORT_NEEDED
, &vha
->dpc_flags
);
6418 qla2xxx_wake_dpc(vha
);
6419 qla2x00_wait_for_hba_online(vha
);
6423 * Called from qla_init.c:qla24xx_vport_create() contex to setup
6424 * the target mode specific struct scsi_qla_host and struct qla_hw_data
6428 qlt_vport_create(struct scsi_qla_host
*vha
, struct qla_hw_data
*ha
)
6430 vha
->vha_tgt
.qla_tgt
= NULL
;
6432 mutex_init(&vha
->vha_tgt
.tgt_mutex
);
6433 mutex_init(&vha
->vha_tgt
.tgt_host_action_mutex
);
6435 qlt_clear_mode(vha
);
6438 * NOTE: Currently the value is kept the same for <24xx and
6439 * >=24xx ISPs. If it is necessary to change it,
6440 * the check should be added for specific ISPs,
6441 * assigning the value appropriately.
6443 ha
->tgt
.atio_q_length
= ATIO_ENTRY_CNT_24XX
;
6445 qlt_add_target(ha
, vha
);
6449 qlt_rff_id(struct scsi_qla_host
*vha
, struct ct_sns_req
*ct_req
)
6452 * FC-4 Feature bit 0 indicates target functionality to the name server.
6454 if (qla_tgt_mode_enabled(vha
)) {
6455 ct_req
->req
.rff_id
.fc4_feature
= BIT_0
;
6456 } else if (qla_ini_mode_enabled(vha
)) {
6457 ct_req
->req
.rff_id
.fc4_feature
= BIT_1
;
6458 } else if (qla_dual_mode_enabled(vha
))
6459 ct_req
->req
.rff_id
.fc4_feature
= BIT_0
| BIT_1
;
6463 * qlt_init_atio_q_entries() - Initializes ATIO queue entries.
6466 * Beginning of ATIO ring has initialization control block already built
6467 * by nvram config routine.
6469 * Returns 0 on success.
6472 qlt_init_atio_q_entries(struct scsi_qla_host
*vha
)
6474 struct qla_hw_data
*ha
= vha
->hw
;
6476 struct atio_from_isp
*pkt
= (struct atio_from_isp
*)ha
->tgt
.atio_ring
;
6478 if (qla_ini_mode_enabled(vha
))
6481 for (cnt
= 0; cnt
< ha
->tgt
.atio_q_length
; cnt
++) {
6482 pkt
->u
.raw
.signature
= ATIO_PROCESSED
;
6489 * qlt_24xx_process_atio_queue() - Process ATIO queue entries.
6490 * @ha: SCSI driver HA context
6493 qlt_24xx_process_atio_queue(struct scsi_qla_host
*vha
, uint8_t ha_locked
)
6495 struct qla_hw_data
*ha
= vha
->hw
;
6496 struct atio_from_isp
*pkt
;
6499 if (!ha
->flags
.fw_started
)
6502 while ((ha
->tgt
.atio_ring_ptr
->signature
!= ATIO_PROCESSED
) ||
6503 fcpcmd_is_corrupted(ha
->tgt
.atio_ring_ptr
)) {
6504 pkt
= (struct atio_from_isp
*)ha
->tgt
.atio_ring_ptr
;
6505 cnt
= pkt
->u
.raw
.entry_count
;
6507 if (unlikely(fcpcmd_is_corrupted(ha
->tgt
.atio_ring_ptr
))) {
6509 * This packet is corrupted. The header + payload
6510 * can not be trusted. There is no point in passing
6513 ql_log(ql_log_warn
, vha
, 0xd03c,
6514 "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
6515 pkt
->u
.isp24
.fcp_hdr
.s_id
,
6516 be16_to_cpu(pkt
->u
.isp24
.fcp_hdr
.ox_id
),
6517 le32_to_cpu(pkt
->u
.isp24
.exchange_addr
), pkt
);
6519 adjust_corrupted_atio(pkt
);
6520 qlt_send_term_exchange(ha
->base_qpair
, NULL
, pkt
,
6523 qlt_24xx_atio_pkt_all_vps(vha
,
6524 (struct atio_from_isp
*)pkt
, ha_locked
);
6527 for (i
= 0; i
< cnt
; i
++) {
6528 ha
->tgt
.atio_ring_index
++;
6529 if (ha
->tgt
.atio_ring_index
== ha
->tgt
.atio_q_length
) {
6530 ha
->tgt
.atio_ring_index
= 0;
6531 ha
->tgt
.atio_ring_ptr
= ha
->tgt
.atio_ring
;
6533 ha
->tgt
.atio_ring_ptr
++;
6535 pkt
->u
.raw
.signature
= ATIO_PROCESSED
;
6536 pkt
= (struct atio_from_isp
*)ha
->tgt
.atio_ring_ptr
;
6541 /* Adjust ring index */
6542 WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha
), ha
->tgt
.atio_ring_index
);
6546 qlt_24xx_config_rings(struct scsi_qla_host
*vha
)
6548 struct qla_hw_data
*ha
= vha
->hw
;
6549 struct init_cb_24xx
*icb
;
6550 if (!QLA_TGT_MODE_ENABLED())
6553 WRT_REG_DWORD(ISP_ATIO_Q_IN(vha
), 0);
6554 WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha
), 0);
6555 RD_REG_DWORD(ISP_ATIO_Q_OUT(vha
));
6557 icb
= (struct init_cb_24xx
*)ha
->init_cb
;
6559 if ((ql2xenablemsix
!= 0) && IS_ATIO_MSIX_CAPABLE(ha
)) {
6560 struct qla_msix_entry
*msix
= &ha
->msix_entries
[2];
6562 icb
->msix_atio
= cpu_to_le16(msix
->entry
);
6563 ql_dbg(ql_dbg_init
, vha
, 0xf072,
6564 "Registering ICB vector 0x%x for atio que.\n",
6566 } else if (ql2xenablemsix
== 0) {
6567 icb
->firmware_options_2
|= cpu_to_le32(BIT_26
);
6568 ql_dbg(ql_dbg_init
, vha
, 0xf07f,
6569 "Registering INTx vector for ATIO.\n");
6574 qlt_24xx_config_nvram_stage1(struct scsi_qla_host
*vha
, struct nvram_24xx
*nv
)
6576 struct qla_hw_data
*ha
= vha
->hw
;
6578 if (!QLA_TGT_MODE_ENABLED())
6581 if (qla_tgt_mode_enabled(vha
) || qla_dual_mode_enabled(vha
)) {
6582 if (!ha
->tgt
.saved_set
) {
6583 /* We save only once */
6584 ha
->tgt
.saved_exchange_count
= nv
->exchange_count
;
6585 ha
->tgt
.saved_firmware_options_1
=
6586 nv
->firmware_options_1
;
6587 ha
->tgt
.saved_firmware_options_2
=
6588 nv
->firmware_options_2
;
6589 ha
->tgt
.saved_firmware_options_3
=
6590 nv
->firmware_options_3
;
6591 ha
->tgt
.saved_set
= 1;
6594 if (qla_tgt_mode_enabled(vha
))
6595 nv
->exchange_count
= cpu_to_le16(0xFFFF);
6597 nv
->exchange_count
= cpu_to_le16(ql2xexchoffld
);
6599 /* Enable target mode */
6600 nv
->firmware_options_1
|= cpu_to_le32(BIT_4
);
6602 /* Disable ini mode, if requested */
6603 if (qla_tgt_mode_enabled(vha
))
6604 nv
->firmware_options_1
|= cpu_to_le32(BIT_5
);
6606 /* Disable Full Login after LIP */
6607 nv
->firmware_options_1
&= cpu_to_le32(~BIT_13
);
6608 /* Enable initial LIP */
6609 nv
->firmware_options_1
&= cpu_to_le32(~BIT_9
);
6610 if (ql2xtgt_tape_enable
)
6611 /* Enable FC Tape support */
6612 nv
->firmware_options_2
|= cpu_to_le32(BIT_12
);
6614 /* Disable FC Tape support */
6615 nv
->firmware_options_2
&= cpu_to_le32(~BIT_12
);
6617 /* Disable Full Login after LIP */
6618 nv
->host_p
&= cpu_to_le32(~BIT_10
);
6621 * clear BIT 15 explicitly as we have seen at least
6622 * a couple of instances where this was set and this
6623 * was causing the firmware to not be initialized.
6625 nv
->firmware_options_1
&= cpu_to_le32(~BIT_15
);
6626 /* Enable target PRLI control */
6627 nv
->firmware_options_2
|= cpu_to_le32(BIT_14
);
6629 if (ha
->tgt
.saved_set
) {
6630 nv
->exchange_count
= ha
->tgt
.saved_exchange_count
;
6631 nv
->firmware_options_1
=
6632 ha
->tgt
.saved_firmware_options_1
;
6633 nv
->firmware_options_2
=
6634 ha
->tgt
.saved_firmware_options_2
;
6635 nv
->firmware_options_3
=
6636 ha
->tgt
.saved_firmware_options_3
;
6641 if (ha
->base_qpair
->enable_class_2
) {
6642 if (vha
->flags
.init_done
)
6643 fc_host_supported_classes(vha
->host
) =
6644 FC_COS_CLASS2
| FC_COS_CLASS3
;
6646 nv
->firmware_options_2
|= cpu_to_le32(BIT_8
);
6648 if (vha
->flags
.init_done
)
6649 fc_host_supported_classes(vha
->host
) = FC_COS_CLASS3
;
6651 nv
->firmware_options_2
&= ~cpu_to_le32(BIT_8
);
6656 qlt_24xx_config_nvram_stage2(struct scsi_qla_host
*vha
,
6657 struct init_cb_24xx
*icb
)
6659 struct qla_hw_data
*ha
= vha
->hw
;
6661 if (!QLA_TGT_MODE_ENABLED())
6664 if (ha
->tgt
.node_name_set
) {
6665 memcpy(icb
->node_name
, ha
->tgt
.tgt_node_name
, WWN_SIZE
);
6666 icb
->firmware_options_1
|= cpu_to_le32(BIT_14
);
6669 /* disable ZIO at start time. */
6670 if (!vha
->flags
.init_done
) {
6672 tmp
= le32_to_cpu(icb
->firmware_options_2
);
6673 tmp
&= ~(BIT_3
| BIT_2
| BIT_1
| BIT_0
);
6674 icb
->firmware_options_2
= cpu_to_le32(tmp
);
6679 qlt_81xx_config_nvram_stage1(struct scsi_qla_host
*vha
, struct nvram_81xx
*nv
)
6681 struct qla_hw_data
*ha
= vha
->hw
;
6683 if (!QLA_TGT_MODE_ENABLED())
6686 if (qla_tgt_mode_enabled(vha
) || qla_dual_mode_enabled(vha
)) {
6687 if (!ha
->tgt
.saved_set
) {
6688 /* We save only once */
6689 ha
->tgt
.saved_exchange_count
= nv
->exchange_count
;
6690 ha
->tgt
.saved_firmware_options_1
=
6691 nv
->firmware_options_1
;
6692 ha
->tgt
.saved_firmware_options_2
=
6693 nv
->firmware_options_2
;
6694 ha
->tgt
.saved_firmware_options_3
=
6695 nv
->firmware_options_3
;
6696 ha
->tgt
.saved_set
= 1;
6699 if (qla_tgt_mode_enabled(vha
))
6700 nv
->exchange_count
= cpu_to_le16(0xFFFF);
6702 nv
->exchange_count
= cpu_to_le16(ql2xexchoffld
);
6704 /* Enable target mode */
6705 nv
->firmware_options_1
|= cpu_to_le32(BIT_4
);
6707 /* Disable ini mode, if requested */
6708 if (qla_tgt_mode_enabled(vha
))
6709 nv
->firmware_options_1
|= cpu_to_le32(BIT_5
);
6710 /* Disable Full Login after LIP */
6711 nv
->firmware_options_1
&= cpu_to_le32(~BIT_13
);
6712 /* Enable initial LIP */
6713 nv
->firmware_options_1
&= cpu_to_le32(~BIT_9
);
6715 * clear BIT 15 explicitly as we have seen at
6716 * least a couple of instances where this was set
6717 * and this was causing the firmware to not be
6720 nv
->firmware_options_1
&= cpu_to_le32(~BIT_15
);
6721 if (ql2xtgt_tape_enable
)
6722 /* Enable FC tape support */
6723 nv
->firmware_options_2
|= cpu_to_le32(BIT_12
);
6725 /* Disable FC tape support */
6726 nv
->firmware_options_2
&= cpu_to_le32(~BIT_12
);
6728 /* Disable Full Login after LIP */
6729 nv
->host_p
&= cpu_to_le32(~BIT_10
);
6730 /* Enable target PRLI control */
6731 nv
->firmware_options_2
|= cpu_to_le32(BIT_14
);
6733 if (ha
->tgt
.saved_set
) {
6734 nv
->exchange_count
= ha
->tgt
.saved_exchange_count
;
6735 nv
->firmware_options_1
=
6736 ha
->tgt
.saved_firmware_options_1
;
6737 nv
->firmware_options_2
=
6738 ha
->tgt
.saved_firmware_options_2
;
6739 nv
->firmware_options_3
=
6740 ha
->tgt
.saved_firmware_options_3
;
6745 if (ha
->base_qpair
->enable_class_2
) {
6746 if (vha
->flags
.init_done
)
6747 fc_host_supported_classes(vha
->host
) =
6748 FC_COS_CLASS2
| FC_COS_CLASS3
;
6750 nv
->firmware_options_2
|= cpu_to_le32(BIT_8
);
6752 if (vha
->flags
.init_done
)
6753 fc_host_supported_classes(vha
->host
) = FC_COS_CLASS3
;
6755 nv
->firmware_options_2
&= ~cpu_to_le32(BIT_8
);
6760 qlt_81xx_config_nvram_stage2(struct scsi_qla_host
*vha
,
6761 struct init_cb_81xx
*icb
)
6763 struct qla_hw_data
*ha
= vha
->hw
;
6765 if (!QLA_TGT_MODE_ENABLED())
6768 if (ha
->tgt
.node_name_set
) {
6769 memcpy(icb
->node_name
, ha
->tgt
.tgt_node_name
, WWN_SIZE
);
6770 icb
->firmware_options_1
|= cpu_to_le32(BIT_14
);
6773 /* disable ZIO at start time. */
6774 if (!vha
->flags
.init_done
) {
6776 tmp
= le32_to_cpu(icb
->firmware_options_2
);
6777 tmp
&= ~(BIT_3
| BIT_2
| BIT_1
| BIT_0
);
6778 icb
->firmware_options_2
= cpu_to_le32(tmp
);
6784 qlt_83xx_iospace_config(struct qla_hw_data
*ha
)
6786 if (!QLA_TGT_MODE_ENABLED())
6789 ha
->msix_count
+= 1; /* For ATIO Q */
6794 qlt_modify_vp_config(struct scsi_qla_host
*vha
,
6795 struct vp_config_entry_24xx
*vpmod
)
6797 /* enable target mode. Bit5 = 1 => disable */
6798 if (qla_tgt_mode_enabled(vha
) || qla_dual_mode_enabled(vha
))
6799 vpmod
->options_idx1
&= ~BIT_5
;
6801 /* Disable ini mode, if requested. bit4 = 1 => disable */
6802 if (qla_tgt_mode_enabled(vha
))
6803 vpmod
->options_idx1
&= ~BIT_4
;
6807 qlt_probe_one_stage1(struct scsi_qla_host
*base_vha
, struct qla_hw_data
*ha
)
6811 if (!QLA_TGT_MODE_ENABLED())
6814 if ((ql2xenablemsix
== 0) || IS_QLA83XX(ha
) || IS_QLA27XX(ha
)) {
6815 ISP_ATIO_Q_IN(base_vha
) = &ha
->mqiobase
->isp25mq
.atio_q_in
;
6816 ISP_ATIO_Q_OUT(base_vha
) = &ha
->mqiobase
->isp25mq
.atio_q_out
;
6818 ISP_ATIO_Q_IN(base_vha
) = &ha
->iobase
->isp24
.atio_q_in
;
6819 ISP_ATIO_Q_OUT(base_vha
) = &ha
->iobase
->isp24
.atio_q_out
;
6822 mutex_init(&base_vha
->vha_tgt
.tgt_mutex
);
6823 mutex_init(&base_vha
->vha_tgt
.tgt_host_action_mutex
);
6825 INIT_LIST_HEAD(&base_vha
->unknown_atio_list
);
6826 INIT_DELAYED_WORK(&base_vha
->unknown_atio_work
,
6827 qlt_unknown_atio_work_fn
);
6829 qlt_clear_mode(base_vha
);
6831 rc
= btree_init32(&ha
->tgt
.host_map
);
6833 ql_log(ql_log_info
, base_vha
, 0xd03d,
6834 "Unable to initialize ha->host_map btree\n");
6836 qlt_update_vp_map(base_vha
, SET_VP_IDX
);
6840 qla83xx_msix_atio_q(int irq
, void *dev_id
)
6842 struct rsp_que
*rsp
;
6843 scsi_qla_host_t
*vha
;
6844 struct qla_hw_data
*ha
;
6845 unsigned long flags
;
6847 rsp
= (struct rsp_que
*) dev_id
;
6849 vha
= pci_get_drvdata(ha
->pdev
);
6851 spin_lock_irqsave(&ha
->tgt
.atio_lock
, flags
);
6853 qlt_24xx_process_atio_queue(vha
, 0);
6855 spin_unlock_irqrestore(&ha
->tgt
.atio_lock
, flags
);
6861 qlt_handle_abts_recv_work(struct work_struct
*work
)
6863 struct qla_tgt_sess_op
*op
= container_of(work
,
6864 struct qla_tgt_sess_op
, work
);
6865 scsi_qla_host_t
*vha
= op
->vha
;
6866 struct qla_hw_data
*ha
= vha
->hw
;
6867 unsigned long flags
;
6869 if (qla2x00_reset_active(vha
) ||
6870 (op
->chip_reset
!= ha
->base_qpair
->chip_reset
))
6873 spin_lock_irqsave(&ha
->tgt
.atio_lock
, flags
);
6874 qlt_24xx_process_atio_queue(vha
, 0);
6875 spin_unlock_irqrestore(&ha
->tgt
.atio_lock
, flags
);
6877 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
6878 qlt_response_pkt_all_vps(vha
, op
->rsp
, (response_t
*)&op
->atio
);
6879 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
6885 qlt_handle_abts_recv(struct scsi_qla_host
*vha
, struct rsp_que
*rsp
,
6888 struct qla_tgt_sess_op
*op
;
6890 op
= kzalloc(sizeof(*op
), GFP_ATOMIC
);
6893 /* do not reach for ATIO queue here. This is best effort err
6894 * recovery at this point.
6896 qlt_response_pkt_all_vps(vha
, rsp
, pkt
);
6900 memcpy(&op
->atio
, pkt
, sizeof(*pkt
));
6902 op
->chip_reset
= vha
->hw
->base_qpair
->chip_reset
;
6904 INIT_WORK(&op
->work
, qlt_handle_abts_recv_work
);
6905 queue_work(qla_tgt_wq
, &op
->work
);
6910 qlt_mem_alloc(struct qla_hw_data
*ha
)
6912 if (!QLA_TGT_MODE_ENABLED())
6915 ha
->tgt
.tgt_vp_map
= kzalloc(sizeof(struct qla_tgt_vp_map
) *
6916 MAX_MULTI_ID_FABRIC
, GFP_KERNEL
);
6917 if (!ha
->tgt
.tgt_vp_map
)
6920 ha
->tgt
.atio_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
6921 (ha
->tgt
.atio_q_length
+ 1) * sizeof(struct atio_from_isp
),
6922 &ha
->tgt
.atio_dma
, GFP_KERNEL
);
6923 if (!ha
->tgt
.atio_ring
) {
6924 kfree(ha
->tgt
.tgt_vp_map
);
6931 qlt_mem_free(struct qla_hw_data
*ha
)
6933 if (!QLA_TGT_MODE_ENABLED())
6936 if (ha
->tgt
.atio_ring
) {
6937 dma_free_coherent(&ha
->pdev
->dev
, (ha
->tgt
.atio_q_length
+ 1) *
6938 sizeof(struct atio_from_isp
), ha
->tgt
.atio_ring
,
6941 kfree(ha
->tgt
.tgt_vp_map
);
6944 /* vport_slock to be held by the caller */
6946 qlt_update_vp_map(struct scsi_qla_host
*vha
, int cmd
)
6952 if (!QLA_TGT_MODE_ENABLED())
6955 key
= vha
->d_id
.b24
;
6959 vha
->hw
->tgt
.tgt_vp_map
[vha
->vp_idx
].vha
= vha
;
6962 slot
= btree_lookup32(&vha
->hw
->tgt
.host_map
, key
);
6964 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf018,
6965 "Save vha in host_map %p %06x\n", vha
, key
);
6966 rc
= btree_insert32(&vha
->hw
->tgt
.host_map
,
6967 key
, vha
, GFP_ATOMIC
);
6969 ql_log(ql_log_info
, vha
, 0xd03e,
6970 "Unable to insert s_id into host_map: %06x\n",
6974 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf019,
6975 "replace existing vha in host_map %p %06x\n", vha
, key
);
6976 btree_update32(&vha
->hw
->tgt
.host_map
, key
, vha
);
6979 vha
->hw
->tgt
.tgt_vp_map
[vha
->vp_idx
].vha
= NULL
;
6982 ql_dbg(ql_dbg_tgt_mgt
, vha
, 0xf01a,
6983 "clear vha in host_map %p %06x\n", vha
, key
);
6984 slot
= btree_lookup32(&vha
->hw
->tgt
.host_map
, key
);
6986 btree_remove32(&vha
->hw
->tgt
.host_map
, key
);
6992 void qlt_update_host_map(struct scsi_qla_host
*vha
, port_id_t id
)
6994 unsigned long flags
;
6995 struct qla_hw_data
*ha
= vha
->hw
;
6997 if (!vha
->d_id
.b24
) {
6998 spin_lock_irqsave(&ha
->vport_slock
, flags
);
7000 qlt_update_vp_map(vha
, SET_AL_PA
);
7001 spin_unlock_irqrestore(&ha
->vport_slock
, flags
);
7002 } else if (vha
->d_id
.b24
!= id
.b24
) {
7003 spin_lock_irqsave(&ha
->vport_slock
, flags
);
7004 qlt_update_vp_map(vha
, RESET_AL_PA
);
7006 qlt_update_vp_map(vha
, SET_AL_PA
);
7007 spin_unlock_irqrestore(&ha
->vport_slock
, flags
);
7011 static int __init
qlt_parse_ini_mode(void)
7013 if (strcasecmp(qlini_mode
, QLA2XXX_INI_MODE_STR_EXCLUSIVE
) == 0)
7014 ql2x_ini_mode
= QLA2XXX_INI_MODE_EXCLUSIVE
;
7015 else if (strcasecmp(qlini_mode
, QLA2XXX_INI_MODE_STR_DISABLED
) == 0)
7016 ql2x_ini_mode
= QLA2XXX_INI_MODE_DISABLED
;
7017 else if (strcasecmp(qlini_mode
, QLA2XXX_INI_MODE_STR_ENABLED
) == 0)
7018 ql2x_ini_mode
= QLA2XXX_INI_MODE_ENABLED
;
7019 else if (strcasecmp(qlini_mode
, QLA2XXX_INI_MODE_STR_DUAL
) == 0)
7020 ql2x_ini_mode
= QLA2XXX_INI_MODE_DUAL
;
7027 int __init
qlt_init(void)
7031 if (!qlt_parse_ini_mode()) {
7032 ql_log(ql_log_fatal
, NULL
, 0xe06b,
7033 "qlt_parse_ini_mode() failed\n");
7037 if (!QLA_TGT_MODE_ENABLED())
7040 qla_tgt_mgmt_cmd_cachep
= kmem_cache_create("qla_tgt_mgmt_cmd_cachep",
7041 sizeof(struct qla_tgt_mgmt_cmd
), __alignof__(struct
7042 qla_tgt_mgmt_cmd
), 0, NULL
);
7043 if (!qla_tgt_mgmt_cmd_cachep
) {
7044 ql_log(ql_log_fatal
, NULL
, 0xd04b,
7045 "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
7049 qla_tgt_plogi_cachep
= kmem_cache_create("qla_tgt_plogi_cachep",
7050 sizeof(struct qlt_plogi_ack_t
), __alignof__(struct qlt_plogi_ack_t
),
7053 if (!qla_tgt_plogi_cachep
) {
7054 ql_log(ql_log_fatal
, NULL
, 0xe06d,
7055 "kmem_cache_create for qla_tgt_plogi_cachep failed\n");
7057 goto out_mgmt_cmd_cachep
;
7060 qla_tgt_mgmt_cmd_mempool
= mempool_create(25, mempool_alloc_slab
,
7061 mempool_free_slab
, qla_tgt_mgmt_cmd_cachep
);
7062 if (!qla_tgt_mgmt_cmd_mempool
) {
7063 ql_log(ql_log_fatal
, NULL
, 0xe06e,
7064 "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
7066 goto out_plogi_cachep
;
7069 qla_tgt_wq
= alloc_workqueue("qla_tgt_wq", 0, 0);
7071 ql_log(ql_log_fatal
, NULL
, 0xe06f,
7072 "alloc_workqueue for qla_tgt_wq failed\n");
7074 goto out_cmd_mempool
;
7077 * Return 1 to signal that initiator-mode is being disabled
7079 return (ql2x_ini_mode
== QLA2XXX_INI_MODE_DISABLED
) ? 1 : 0;
7082 mempool_destroy(qla_tgt_mgmt_cmd_mempool
);
7084 kmem_cache_destroy(qla_tgt_plogi_cachep
);
7085 out_mgmt_cmd_cachep
:
7086 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep
);
7092 if (!QLA_TGT_MODE_ENABLED())
7095 destroy_workqueue(qla_tgt_wq
);
7096 mempool_destroy(qla_tgt_mgmt_cmd_mempool
);
7097 kmem_cache_destroy(qla_tgt_plogi_cachep
);
7098 kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep
);