1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
4 * Copyright (C) 2004 - 2005 Leonid Stoljar
5 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
6 * Copyright (C) 2007 - 2010 ID7 Ltd.
8 * Forward port and refactoring to modern qla2xxx and target/configfs
10 * Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org>
12 * Additional file for the target driver support.
15 * This is the global def file that is useful for including from the
19 #ifndef __QLA_TARGET_H
20 #define __QLA_TARGET_H
26 * Must be changed on any change in any initiator visible interfaces or
27 * data in the target add-on
29 #define QLA2XXX_TARGET_MAGIC 269
32 * Must be changed on any change in any target visible interfaces or
33 * data in the initiator
35 #define QLA2XXX_INITIATOR_MAGIC 57222
37 #define QLA2XXX_INI_MODE_STR_EXCLUSIVE "exclusive"
38 #define QLA2XXX_INI_MODE_STR_DISABLED "disabled"
39 #define QLA2XXX_INI_MODE_STR_ENABLED "enabled"
40 #define QLA2XXX_INI_MODE_STR_DUAL "dual"
42 #define QLA2XXX_INI_MODE_EXCLUSIVE 0
43 #define QLA2XXX_INI_MODE_DISABLED 1
44 #define QLA2XXX_INI_MODE_ENABLED 2
45 #define QLA2XXX_INI_MODE_DUAL 3
47 #define QLA2XXX_COMMAND_COUNT_INIT 250
48 #define QLA2XXX_IMMED_NOTIFY_COUNT_INIT 250
51 * Used to mark which completion handles (for RIO Status's) are for CTIO's
52 * vs. regular (non-target) info. This is checked for in
53 * qla2x00_process_response_queue() to see if a handle coming back in a
54 * multi-complete should come to the tgt driver or be handled there by qla2xxx
56 #define CTIO_COMPLETION_HANDLE_MARK BIT_29
57 #if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS)
58 #error "CTIO_COMPLETION_HANDLE_MARK not larger than "
59 "DEFAULT_OUTSTANDING_COMMANDS"
61 #define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK)
63 /* Used to mark CTIO as intermediate */
64 #define CTIO_INTERMEDIATE_HANDLE_MARK BIT_30
65 #define QLA_TGT_NULL_HANDLE 0
67 #define QLA_TGT_HANDLE_MASK 0xF0000000
68 #define QLA_QPID_HANDLE_MASK 0x00FF0000 /* qpair id mask */
69 #define QLA_CMD_HANDLE_MASK 0x0000FFFF
70 #define QLA_TGT_SKIP_HANDLE (0xFFFFFFFF & ~QLA_TGT_HANDLE_MASK)
72 #define QLA_QPID_HANDLE_SHIFT 16
73 #define GET_QID(_h) ((_h & QLA_QPID_HANDLE_MASK) >> QLA_QPID_HANDLE_SHIFT)
78 * ISP target entries - Flags bit definitions.
80 #define OF_SS_MODE_0 0
81 #define OF_SS_MODE_1 1
82 #define OF_SS_MODE_2 2
83 #define OF_SS_MODE_3 3
85 #define OF_EXPL_CONF BIT_5 /* Explicit Confirmation Requested */
86 #define OF_DATA_IN BIT_6 /* Data in to initiator */
87 /* (data from target to initiator) */
88 #define OF_DATA_OUT BIT_7 /* Data out from initiator */
89 /* (data from initiator to target) */
90 #define OF_NO_DATA (BIT_7 | BIT_6)
91 #define OF_INC_RC BIT_8 /* Increment command resource count */
92 #define OF_FAST_POST BIT_9 /* Enable mailbox fast posting. */
93 #define OF_CONF_REQ BIT_13 /* Confirmation Requested */
94 #define OF_TERM_EXCH BIT_14 /* Terminate exchange */
95 #define OF_SSTS BIT_15 /* Send SCSI status */
98 #ifndef QLA_TGT_DATASEGS_PER_CMD32
99 #define QLA_TGT_DATASEGS_PER_CMD32 3
100 #define QLA_TGT_DATASEGS_PER_CONT32 7
101 #define QLA_TGT_MAX_SG32(ql) \
102 (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD32 + \
103 QLA_TGT_DATASEGS_PER_CONT32*((ql) - 1)) : 0)
105 #define QLA_TGT_DATASEGS_PER_CMD64 2
106 #define QLA_TGT_DATASEGS_PER_CONT64 5
107 #define QLA_TGT_MAX_SG64(ql) \
108 (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD64 + \
109 QLA_TGT_DATASEGS_PER_CONT64*((ql) - 1)) : 0)
112 #ifndef QLA_TGT_DATASEGS_PER_CMD_24XX
113 #define QLA_TGT_DATASEGS_PER_CMD_24XX 1
114 #define QLA_TGT_DATASEGS_PER_CONT_24XX 5
115 #define QLA_TGT_MAX_SG_24XX(ql) \
116 (min(1270, ((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD_24XX + \
117 QLA_TGT_DATASEGS_PER_CONT_24XX*((ql) - 1)) : 0))
121 #define GET_TARGET_ID(ha, iocb) ((HAS_EXTENDED_IDS(ha)) \
122 ? le16_to_cpu((iocb)->u.isp2x.target.extended) \
123 : (uint16_t)(iocb)->u.isp2x.target.id.standard)
125 #ifndef NOTIFY_ACK_TYPE
126 #define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */
128 * ISP queue - notify acknowledge entry structure definition.
129 * This is sent to the ISP from the target driver.
132 uint8_t entry_type; /* Entry type. */
133 uint8_t entry_count; /* Entry count. */
134 uint8_t sys_define; /* System defined. */
135 uint8_t entry_status; /* Entry Status. */
138 uint32_t sys_define_2; /* System defined. */
148 uint32_t srr_rel_offs;
151 uint16_t srr_reject_code;
152 uint8_t srr_reject_vendor_uniq;
153 uint8_t srr_reject_code_expl;
154 uint8_t reserved_2[24];
158 uint16_t nport_handle;
163 uint8_t status_subcode;
165 uint32_t exchange_address;
166 uint32_t srr_rel_offs;
169 uint8_t reserved_4[19];
171 uint8_t srr_reject_vendor_uniq;
172 uint8_t srr_reject_code_expl;
173 uint8_t srr_reject_code;
174 uint8_t reserved_5[5];
180 #define NOTIFY_ACK_FLAGS_TERMINATE BIT_3
181 #define NOTIFY_ACK_SRR_FLAGS_ACCEPT 0
182 #define NOTIFY_ACK_SRR_FLAGS_REJECT 1
184 #define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM 0x9
186 #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL 0
187 #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA 0x2a
189 #define NOTIFY_ACK_SUCCESS 0x01
192 #ifndef ACCEPT_TGT_IO_TYPE
193 #define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */
196 #ifndef CONTINUE_TGT_IO_TYPE
197 #define CONTINUE_TGT_IO_TYPE 0x17
199 * ISP queue - Continue Target I/O (CTIO) entry for status mode 0 structure.
200 * This structure is sent to the ISP 2xxx from target driver.
202 struct ctio_to_2xxx {
203 uint8_t entry_type; /* Entry type. */
204 uint8_t entry_count; /* Entry count. */
205 uint8_t sys_define; /* System defined. */
206 uint8_t entry_status; /* Entry Status. */
207 uint32_t handle; /* System defined handle */
212 uint16_t timeout; /* 0 = 30 seconds, 0xFFFF = disable */
213 uint16_t dseg_count; /* Data segment count. */
214 uint32_t relative_offset;
216 uint16_t reserved_1[3];
217 uint16_t scsi_status;
218 uint32_t transfer_length;
221 #define ATIO_PATH_INVALID 0x07
222 #define ATIO_CANT_PROV_CAP 0x16
223 #define ATIO_CDB_VALID 0x3D
225 #define ATIO_EXEC_READ BIT_1
226 #define ATIO_EXEC_WRITE BIT_0
229 #ifndef CTIO_A64_TYPE
230 #define CTIO_A64_TYPE 0x1F
231 #define CTIO_SUCCESS 0x01
232 #define CTIO_ABORTED 0x02
233 #define CTIO_INVALID_RX_ID 0x08
234 #define CTIO_TIMEOUT 0x0B
235 #define CTIO_DIF_ERROR 0x0C /* DIF error detected */
236 #define CTIO_LIP_RESET 0x0E
237 #define CTIO_TARGET_RESET 0x17
238 #define CTIO_PORT_UNAVAILABLE 0x28
239 #define CTIO_PORT_LOGGED_OUT 0x29
240 #define CTIO_PORT_CONF_CHANGED 0x2A
241 #define CTIO_SRR_RECEIVED 0x45
244 #ifndef CTIO_RET_TYPE
245 #define CTIO_RET_TYPE 0x17 /* CTIO return entry */
246 #define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */
278 #define F_CTL_EXCH_CONTEXT_RESP BIT_23
279 #define F_CTL_SEQ_CONTEXT_RESIP BIT_22
280 #define F_CTL_LAST_SEQ BIT_20
281 #define F_CTL_END_SEQ BIT_19
282 #define F_CTL_SEQ_INITIATIVE BIT_16
284 #define R_CTL_BASIC_LINK_SERV 0x80
285 #define R_CTL_B_ACC 0x4
286 #define R_CTL_B_RJT 0x5
288 struct atio7_fcp_cmnd {
293 uint8_t task_mgmt_flags;
294 #define FCP_CMND_TASK_MGMT_CLEAR_ACA 6
295 #define FCP_CMND_TASK_MGMT_TARGET_RESET 5
296 #define FCP_CMND_TASK_MGMT_LU_RESET 4
297 #define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET 2
298 #define FCP_CMND_TASK_MGMT_ABORT_TASK_SET 1
301 uint8_t add_cdb_len:6;
304 * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4
305 * only to make sizeof(struct atio7_fcp_cmnd) be as expected by
306 * BUILD_BUG_ON in qlt_init().
309 /* uint32_t data_length; */
313 * ISP queue - Accept Target I/O (ATIO) type entry IOCB structure.
314 * This is sent from the ISP to the target driver.
316 struct atio_from_isp {
320 uint8_t sys_define; /* System defined. */
321 uint8_t entry_status; /* Entry Status. */
322 uint32_t sys_define_2; /* System defined. */
330 uint8_t execution_codes;
331 uint8_t cdb[MAX_CMDSZ];
332 uint32_t data_length;
334 uint8_t initiator_port_name[WWN_SIZE]; /* on qla23xx */
335 uint16_t reserved_32[6];
340 uint8_t fcp_cmnd_len_low;
341 uint8_t fcp_cmnd_len_high:4;
343 uint32_t exchange_addr;
344 #define ATIO_EXCHANGE_ADDRESS_UNKNOWN 0xFFFFFFFF
345 struct fcp_hdr fcp_hdr;
346 struct atio7_fcp_cmnd fcp_cmnd;
349 uint8_t entry_type; /* Entry type. */
350 uint8_t entry_count; /* Entry count. */
351 __le16 attr_n_length;
352 #define FCP_CMD_LENGTH_MASK 0x0fff
353 #define FCP_CMD_LENGTH_MIN 0x38
356 #define ATIO_PROCESSED 0xDEADDEAD /* Signature */
361 static inline int fcpcmd_is_corrupted(struct atio *atio)
363 if (atio->entry_type == ATIO_TYPE7 &&
364 ((le16_to_cpu(atio->attr_n_length) & FCP_CMD_LENGTH_MASK) <
371 /* adjust corrupted atio so we won't trip over the same entry again. */
372 static inline void adjust_corrupted_atio(struct atio_from_isp *atio)
374 atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN);
375 atio->u.isp24.fcp_cmnd.add_cdb_len = 0;
378 static inline int get_datalen_for_atio(struct atio_from_isp *atio)
380 int len = atio->u.isp24.fcp_cmnd.add_cdb_len;
382 return get_unaligned_be32(&atio->u.isp24.fcp_cmnd.add_cdb[len * 4]);
385 #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
388 * ISP queue - Continue Target I/O (ATIO) type 7 entry (for 24xx) structure.
389 * This structure is sent to the ISP 24xx from the target driver.
392 struct ctio7_to_24xx {
393 uint8_t entry_type; /* Entry type. */
394 uint8_t entry_count; /* Entry count. */
395 uint8_t sys_define; /* System defined. */
396 uint8_t entry_status; /* Entry Status. */
397 uint32_t handle; /* System defined handle */
398 uint16_t nport_handle;
399 #define CTIO7_NHANDLE_UNRECOGNIZED 0xFFFF
401 uint16_t dseg_count; /* Data segment count. */
404 le_id_t initiator_id;
406 uint32_t exchange_addr;
413 uint16_t scsi_status;
414 uint32_t relative_offset;
416 uint32_t transfer_length;
421 uint16_t sense_length;
425 uint16_t scsi_status;
426 uint16_t response_len;
428 uint8_t sense_data[24];
434 * ISP queue - CTIO type 7 from ISP 24xx to target driver
435 * returned entry structure.
437 struct ctio7_from_24xx {
438 uint8_t entry_type; /* Entry type. */
439 uint8_t entry_count; /* Entry count. */
440 uint8_t sys_define; /* System defined. */
441 uint8_t entry_status; /* Entry Status. */
442 uint32_t handle; /* System defined handle */
445 uint16_t dseg_count; /* Data segment count. */
447 uint8_t reserved1[5];
448 uint32_t exchange_address;
454 uint32_t relative_offset;
455 uint8_t reserved4[24];
458 /* CTIO7 flags values */
459 #define CTIO7_FLAGS_SEND_STATUS BIT_15
460 #define CTIO7_FLAGS_TERMINATE BIT_14
461 #define CTIO7_FLAGS_CONFORM_REQ BIT_13
462 #define CTIO7_FLAGS_DONT_RET_CTIO BIT_8
463 #define CTIO7_FLAGS_STATUS_MODE_0 0
464 #define CTIO7_FLAGS_STATUS_MODE_1 BIT_6
465 #define CTIO7_FLAGS_STATUS_MODE_2 BIT_7
466 #define CTIO7_FLAGS_EXPLICIT_CONFORM BIT_5
467 #define CTIO7_FLAGS_CONFIRM_SATISF BIT_4
468 #define CTIO7_FLAGS_DSD_PTR BIT_2
469 #define CTIO7_FLAGS_DATA_IN BIT_1 /* data to initiator */
470 #define CTIO7_FLAGS_DATA_OUT BIT_0 /* data from initiator */
472 #define ELS_PLOGI 0x3
473 #define ELS_FLOGI 0x4
475 #define ELS_PRLI 0x20
476 #define ELS_PRLO 0x21
477 #define ELS_TPRLO 0x24
478 #define ELS_PDISC 0x50
479 #define ELS_ADISC 0x52
482 *CTIO Type CRC_2 IOCB
484 struct ctio_crc2_to_fw {
485 uint8_t entry_type; /* Entry type. */
486 #define CTIO_CRC2 0x7A
487 uint8_t entry_count; /* Entry count. */
488 uint8_t sys_define; /* System defined. */
489 uint8_t entry_status; /* Entry Status. */
491 uint32_t handle; /* System handle. */
492 uint16_t nport_handle; /* N_PORT handle. */
493 __le16 timeout; /* Command timeout. */
495 uint16_t dseg_count; /* Data segment count. */
497 uint8_t add_flags; /* additional flags */
498 #define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3
500 le_id_t initiator_id; /* initiator ID */
502 uint32_t exchange_addr; /* rcv exchange address */
504 __le16 flags; /* refer to CTIO7 flags values */
507 uint16_t scsi_status;
508 __le32 relative_offset;
510 __le32 transfer_length; /* total fc transfer length */
512 __le64 crc_context_address __packed; /* Data segment address. */
513 uint16_t crc_context_len; /* Data segment length. */
514 uint16_t reserved_1; /* MUST be set to 0. */
517 /* CTIO Type CRC_x Status IOCB */
518 struct ctio_crc_from_fw {
519 uint8_t entry_type; /* Entry type. */
520 uint8_t entry_count; /* Entry count. */
521 uint8_t sys_define; /* System defined. */
522 uint8_t entry_status; /* Entry Status. */
524 uint32_t handle; /* System handle. */
526 uint16_t timeout; /* Command timeout. */
527 uint16_t dseg_count; /* Data segment count. */
529 uint16_t state_flags;
530 #define CTIO_CRC_SF_DIF_CHOPPED BIT_4
532 uint32_t exchange_address; /* rcv exchange address */
535 uint32_t resid_xfer_length;
537 uint8_t reserved3[12];
538 uint16_t runt_guard; /* reported runt blk guard */
539 uint8_t actual_dif[8];
540 uint8_t expected_dif[8];
544 * ISP queue - ABTS received/response entries structure definition for 24xx.
546 #define ABTS_RECV_24XX 0x54 /* ABTS received (for 24xx) */
547 #define ABTS_RESP_24XX 0x55 /* ABTS responce (for 24xx) */
550 * ISP queue - ABTS received IOCB entry structure definition for 24xx.
551 * The ABTS BLS received from the wire is sent to the
552 * target driver by the ISP 24xx.
553 * The IOCB is placed on the response queue.
555 struct abts_recv_from_24xx {
556 uint8_t entry_type; /* Entry type. */
557 uint8_t entry_count; /* Entry count. */
558 uint8_t sys_define; /* System defined. */
559 uint8_t entry_status; /* Entry Status. */
560 uint8_t reserved_1[6];
561 uint16_t nport_handle;
562 uint8_t reserved_2[2];
564 uint8_t reserved_3:4;
566 uint32_t exchange_address;
567 struct fcp_hdr_le fcp_hdr_le;
568 uint8_t reserved_4[16];
569 uint32_t exchange_addr_to_abort;
572 #define ABTS_PARAM_ABORT_SEQ BIT_0
577 uint8_t seq_id_valid;
578 #define SEQ_ID_VALID 0x80
579 #define SEQ_ID_INVALID 0x00
582 uint16_t high_seq_cnt;
583 uint16_t low_seq_cnt;
590 #define BA_RJT_REASON_CODE_INVALID_COMMAND 0x1
591 #define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM 0x9
596 * ISP queue - ABTS Response IOCB entry structure definition for 24xx.
597 * The ABTS response to the ABTS received is sent by the
598 * target driver to the ISP 24xx.
599 * The IOCB is placed on the request queue.
601 struct abts_resp_to_24xx {
602 uint8_t entry_type; /* Entry type. */
603 uint8_t entry_count; /* Entry count. */
604 uint8_t sys_define; /* System defined. */
605 uint8_t entry_status; /* Entry Status. */
608 uint16_t nport_handle;
609 uint16_t control_flags;
610 #define ABTS_CONTR_FLG_TERM_EXCHG BIT_0
612 uint8_t reserved_3:4;
614 uint32_t exchange_address;
615 struct fcp_hdr_le fcp_hdr_le;
617 struct ba_acc_le ba_acct;
618 struct ba_rjt_le ba_rjt;
621 uint32_t exchange_addr_to_abort;
625 * ISP queue - ABTS Response IOCB from ISP24xx Firmware entry structure.
626 * The ABTS response with completion status to the ABTS response
627 * (sent by the target driver to the ISP 24xx) is sent by the
628 * ISP24xx firmware to the target driver.
629 * The IOCB is placed on the response queue.
631 struct abts_resp_from_24xx_fw {
632 uint8_t entry_type; /* Entry type. */
633 uint8_t entry_count; /* Entry count. */
634 uint8_t sys_define; /* System defined. */
635 uint8_t entry_status; /* Entry Status. */
637 uint16_t compl_status;
638 #define ABTS_RESP_COMPL_SUCCESS 0
639 #define ABTS_RESP_COMPL_SUBCODE_ERROR 0x31
640 uint16_t nport_handle;
643 uint8_t reserved_3:4;
645 uint32_t exchange_address;
646 struct fcp_hdr_le fcp_hdr_le;
647 uint8_t reserved_4[8];
648 uint32_t error_subcode1;
649 #define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM 0x1E
650 uint32_t error_subcode2;
651 uint32_t exchange_addr_to_abort;
654 /********************************************************************\
655 * Type Definitions used by initiator & target halves
656 \********************************************************************/
658 struct qla_tgt_mgmt_cmd;
663 * This structure provides a template of function calls that the
664 * target driver (from within qla_target.c) can issue to the
665 * target module (tcm_qla2xxx).
667 struct qla_tgt_func_tmpl {
668 struct qla_tgt_cmd *(*find_cmd_by_tag)(struct fc_port *, uint64_t);
669 int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *,
670 unsigned char *, uint32_t, int, int, int);
671 void (*handle_data)(struct qla_tgt_cmd *);
672 int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, u64, uint16_t,
674 void (*free_cmd)(struct qla_tgt_cmd *);
675 void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
676 void (*free_session)(struct fc_port *);
678 int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
680 void (*update_sess)(struct fc_port *, port_id_t, uint16_t, bool);
681 struct fc_port *(*find_sess_by_loop_id)(struct scsi_qla_host *,
683 struct fc_port *(*find_sess_by_s_id)(struct scsi_qla_host *,
685 void (*clear_nacl_from_fcport_map)(struct fc_port *);
686 void (*put_sess)(struct fc_port *);
687 void (*shutdown_sess)(struct fc_port *);
688 int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts);
689 int (*chk_dif_tags)(uint32_t tag);
690 void (*add_target)(struct scsi_qla_host *);
691 void (*remove_target)(struct scsi_qla_host *);
694 int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
696 #include <target/target_core_base.h>
698 #define QLA_TGT_TIMEOUT 10 /* in seconds */
700 #define QLA_TGT_MAX_HW_PENDING_TIME 60 /* in seconds */
702 /* Immediate notify status constants */
703 #define IMM_NTFY_LIP_RESET 0x000E
704 #define IMM_NTFY_LIP_LINK_REINIT 0x000F
705 #define IMM_NTFY_IOCB_OVERFLOW 0x0016
706 #define IMM_NTFY_ABORT_TASK 0x0020
707 #define IMM_NTFY_PORT_LOGOUT 0x0029
708 #define IMM_NTFY_PORT_CONFIG 0x002A
709 #define IMM_NTFY_GLBL_TPRLO 0x002D
710 #define IMM_NTFY_GLBL_LOGO 0x002E
711 #define IMM_NTFY_RESOURCE 0x0034
712 #define IMM_NTFY_MSG_RX 0x0036
713 #define IMM_NTFY_SRR 0x0045
714 #define IMM_NTFY_ELS 0x0046
716 /* Immediate notify task flags */
717 #define IMM_NTFY_TASK_MGMT_SHIFT 8
719 #define QLA_TGT_CLEAR_ACA 0x40
720 #define QLA_TGT_TARGET_RESET 0x20
721 #define QLA_TGT_LUN_RESET 0x10
722 #define QLA_TGT_CLEAR_TS 0x04
723 #define QLA_TGT_ABORT_TS 0x02
724 #define QLA_TGT_ABORT_ALL_SESS 0xFFFF
725 #define QLA_TGT_ABORT_ALL 0xFFFE
726 #define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD
727 #define QLA_TGT_NEXUS_LOSS 0xFFFC
728 #define QLA_TGT_ABTS 0xFFFB
729 #define QLA_TGT_2G_ABORT_TASK 0xFFFA
731 /* Notify Acknowledge flags */
732 #define NOTIFY_ACK_RES_COUNT BIT_8
733 #define NOTIFY_ACK_CLEAR_LIP_RESET BIT_5
734 #define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4
736 /* Command's states */
737 #define QLA_TGT_STATE_NEW 0 /* New command + target processing */
738 #define QLA_TGT_STATE_NEED_DATA 1 /* target needs data to continue */
739 #define QLA_TGT_STATE_DATA_IN 2 /* Data arrived + target processing */
740 #define QLA_TGT_STATE_PROCESSED 3 /* target done processing */
742 /* ATIO task_codes field */
743 #define ATIO_SIMPLE_QUEUE 0
744 #define ATIO_HEAD_OF_QUEUE 1
745 #define ATIO_ORDERED_QUEUE 2
746 #define ATIO_ACA_QUEUE 4
747 #define ATIO_UNTAGGED 5
749 /* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */
750 #define FC_TM_SUCCESS 0
751 #define FC_TM_BAD_FCP_DATA 1
752 #define FC_TM_BAD_CMD 2
753 #define FC_TM_FCP_DATA_MISMATCH 3
754 #define FC_TM_REJECT 4
755 #define FC_TM_FAILED 5
757 #define QLA_TGT_SENSE_VALID(sense) ((sense != NULL) && \
758 (((const uint8_t *)(sense))[0] & 0x70) == 0x70)
760 struct qla_port_24xx_data {
761 uint8_t port_name[WWN_SIZE];
766 struct qla_qpair_hint {
767 struct list_head hint_elem;
768 struct qla_qpair *qpair;
774 struct scsi_qla_host *vha;
775 struct qla_hw_data *ha;
776 struct btree_head64 lun_qpair_map;
777 struct qla_qpair_hint *qphints;
779 * To sync between IRQ handlers and qlt_target_release(). Needed,
780 * because req_pkt() can drop/reaquire HW lock inside. Protected by
783 int atio_irq_cmd_count;
787 /* Target's flags, serialized by pha->hardware_lock */
788 unsigned int link_reinit_iocb_pending:1;
791 * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex
792 * OR hardware_lock for reading.
794 int tgt_stop; /* the target mode driver is being stopped */
795 int tgt_stopped; /* the target mode driver has been stopped */
797 /* Count of sessions refering qla_tgt. Protected by hardware_lock. */
800 /* Protected by hardware_lock */
801 struct list_head del_sess_list;
803 spinlock_t sess_work_lock;
804 struct list_head sess_works_list;
805 struct work_struct sess_work;
807 struct imm_ntfy_from_isp link_reinit_iocb;
808 wait_queue_head_t waitQ;
809 int notify_ack_expected;
810 int abts_resp_expected;
811 int modify_lun_expected;
812 atomic_t tgt_global_resets_count;
813 struct list_head tgt_list_entry;
816 struct qla_tgt_sess_op {
817 struct scsi_qla_host *vha;
819 struct atio_from_isp atio;
820 struct work_struct work;
821 struct list_head cmd_list;
829 TRC_DO_WORK_ERR = BIT_2,
831 TRC_XMIT_DATA = BIT_4,
832 TRC_XMIT_STATUS = BIT_5,
834 TRC_SRR_XRDY = BIT_7,
835 TRC_SRR_TERM = BIT_8,
836 TRC_SRR_CTIO = BIT_9,
838 TRC_CTIO_ERR = BIT_11,
839 TRC_CTIO_DONE = BIT_12,
840 TRC_CTIO_ABORTED = BIT_13,
841 TRC_CTIO_STRANGE = BIT_14,
842 TRC_CMD_DONE = BIT_15,
843 TRC_CMD_CHK_STOP = BIT_16,
844 TRC_CMD_FREE = BIT_17,
845 TRC_DATA_IN = BIT_18,
847 TRC_DIF_ERR = BIT_20,
852 * Do not move cmd_type field. it needs to line up with srb->cmd_type
856 struct se_cmd se_cmd;
857 struct fc_port *sess;
858 struct qla_qpair *qpair;
859 uint32_t reset_count;
861 struct work_struct work;
862 /* Sense buffer that will be mapped into outgoing status */
863 unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
866 /* to save extra sess dereferences */
867 unsigned int conf_compl_supported:1;
868 unsigned int sg_mapped:1;
869 unsigned int free_sg:1;
870 unsigned int write_data_transferred:1;
871 unsigned int q_full:1;
872 unsigned int term_exchg:1;
873 unsigned int cmd_sent_to_fw:1;
874 unsigned int cmd_in_wq:1;
877 * This variable may be set from outside the LIO and I/O completion
878 * callback functions. Do not declare this member variable as a
879 * bitfield to avoid a read-modify-write operation when this variable
882 unsigned int aborted;
884 struct scatterlist *sg; /* cmd data buffer SG vector */
885 int sg_cnt; /* SG segments count */
886 int bufflen; /* cmd buffer length */
889 enum dma_data_direction dma_data_direction;
893 uint16_t loop_id; /* to save extra sess dereferences */
894 struct qla_tgt *tgt; /* to save extra sess dereferences */
895 struct scsi_qla_host *vha;
896 struct list_head cmd_list;
898 struct atio_from_isp atio;
900 uint8_t ctx_dsd_alloced;
903 #define DIF_ERR_NONE 0
904 #define DIF_ERR_GRD 1
905 #define DIF_ERR_REF 2
906 #define DIF_ERR_APP 3
908 struct scatterlist *prot_sg;
909 uint32_t prot_sg_cnt;
910 uint32_t blk_sz, num_blks;
911 uint8_t scsi_status, sense_key, asc, ascq;
913 struct crc_context *ctx;
916 uint16_t a_guard, e_guard, a_app_tag, e_app_tag;
917 uint32_t a_ref_tag, e_ref_tag;
918 #define DIF_BUNDL_DMA_VALID 1
921 uint64_t jiffies_at_alloc;
922 uint64_t jiffies_at_free;
924 enum trace_flags trc_flags;
927 struct qla_tgt_sess_work_param {
928 struct list_head sess_works_list_entry;
930 #define QLA_TGT_SESS_WORK_ABORT 1
931 #define QLA_TGT_SESS_WORK_TM 2
935 struct abts_recv_from_24xx abts;
936 struct imm_ntfy_from_isp tm_iocb;
937 struct atio_from_isp tm_iocb2;
941 struct qla_tgt_mgmt_cmd {
946 uint8_t abort_io_attr;
947 struct fc_port *sess;
948 struct qla_qpair *qpair;
949 struct scsi_qla_host *vha;
950 struct se_cmd se_cmd;
951 struct work_struct free_work;
953 #define QLA24XX_MGMT_SEND_NACK BIT_0
954 #define QLA24XX_MGMT_ABORT_IO_ATTR_VALID BIT_1
955 uint32_t reset_count;
956 struct work_struct work;
957 uint64_t unpacked_lun;
959 struct atio_from_isp atio;
960 struct imm_ntfy_from_isp imm_ntfy;
961 struct abts_recv_from_24xx abts;
962 } __packed orig_iocb;
966 struct qla_tgt_cmd *cmd;
969 struct scatterlist *sg; /* cmd data buffer SG vector */
970 unsigned char *sense_buffer;
974 int sense_buffer_len;
978 struct scatterlist *prot_sg;
979 uint16_t prot_seg_cnt;
983 /* Check for Switch reserved address */
984 #define IS_SW_RESV_ADDR(_s_id) \
985 ((_s_id.b.domain == 0xff) && ((_s_id.b.area & 0xf0) == 0xf0))
987 #define QLA_TGT_XMIT_DATA 1
988 #define QLA_TGT_XMIT_STATUS 2
989 #define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
992 extern struct qla_tgt_data qla_target;
995 * Function prototypes for qla_target.c logic used by qla2xxx LLD code.
997 extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
998 extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
999 extern int qlt_lport_register(void *, u64, u64, u64,
1000 int (*callback)(struct scsi_qla_host *, void *, u64, u64));
1001 extern void qlt_lport_deregister(struct scsi_qla_host *);
1002 extern void qlt_unreg_sess(struct fc_port *);
1003 extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
1004 extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
1005 extern int __init qlt_init(void);
1006 extern void qlt_exit(void);
1007 extern void qlt_update_vp_map(struct scsi_qla_host *, int);
1008 extern void qlt_free_session_done(struct work_struct *);
1010 * This macro is used during early initializations when host->active_mode
1011 * is not set. Right now, ha value is ignored.
1013 #define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
1015 extern int ql2x_ini_mode;
1017 static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
1019 return ha->host->active_mode == MODE_TARGET;
1022 static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
1024 return ha->host->active_mode == MODE_INITIATOR;
1027 static inline bool qla_dual_mode_enabled(struct scsi_qla_host *ha)
1029 return (ha->host->active_mode == MODE_DUAL);
1032 static inline uint32_t sid_to_key(const be_id_t s_id)
1034 return s_id.domain << 16 |
1040 * Exported symbols from qla_target.c LLD logic used by qla2xxx code..
1042 extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, struct rsp_que *,
1044 extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
1045 extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
1046 extern int qlt_abort_cmd(struct qla_tgt_cmd *);
1047 extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
1048 extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
1049 extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
1050 extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
1051 extern void qlt_enable_vha(struct scsi_qla_host *);
1052 extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
1053 extern u8 qlt_rff_id(struct scsi_qla_host *);
1054 extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
1055 extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);
1056 extern void qlt_24xx_config_rings(struct scsi_qla_host *);
1057 extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
1058 struct nvram_24xx *);
1059 extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
1060 struct init_cb_24xx *);
1061 extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
1062 struct init_cb_81xx *);
1063 extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
1064 struct nvram_81xx *);
1065 extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
1066 struct sts_entry_24xx *);
1067 extern void qlt_modify_vp_config(struct scsi_qla_host *,
1068 struct vp_config_entry_24xx *);
1069 extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
1070 extern int qlt_mem_alloc(struct qla_hw_data *);
1071 extern void qlt_mem_free(struct qla_hw_data *);
1072 extern int qlt_stop_phase1(struct qla_tgt *);
1073 extern void qlt_stop_phase2(struct qla_tgt *);
1074 extern irqreturn_t qla83xx_msix_atio_q(int, void *);
1075 extern void qlt_83xx_iospace_config(struct qla_hw_data *);
1076 extern int qlt_free_qfull_cmds(struct qla_qpair *);
1077 extern void qlt_logo_completion_handler(fc_port_t *, int);
1078 extern void qlt_do_generation_tick(struct scsi_qla_host *, int *);
1080 void qlt_send_resp_ctio(struct qla_qpair *, struct qla_tgt_cmd *, uint8_t,
1081 uint8_t, uint8_t, uint8_t);
1083 #endif /* __QLA_TARGET_H */