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))
120 #define GET_TARGET_ID(ha, iocb) ((HAS_EXTENDED_IDS(ha)) \
121 ? le16_to_cpu((iocb)->u.isp2x.target.extended) \
122 : (uint16_t)(iocb)->u.isp2x.target.id.standard)
124 #ifndef NOTIFY_ACK_TYPE
125 #define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */
127 * ISP queue - notify acknowledge entry structure definition.
128 * This is sent to the ISP from the target driver.
131 uint8_t entry_type; /* Entry type. */
132 uint8_t entry_count; /* Entry count. */
133 uint8_t sys_define; /* System defined. */
134 uint8_t entry_status; /* Entry Status. */
137 __le32 sys_define_2; /* System defined. */
150 __le16 srr_reject_code;
151 uint8_t srr_reject_vendor_uniq;
152 uint8_t srr_reject_code_expl;
153 uint8_t reserved_2[24];
162 uint8_t status_subcode;
164 __le32 exchange_address;
168 uint8_t reserved_4[19];
170 uint8_t srr_reject_vendor_uniq;
171 uint8_t srr_reject_code_expl;
172 uint8_t srr_reject_code;
173 uint8_t reserved_5[5];
179 #define NOTIFY_ACK_FLAGS_FCSP BIT_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 __le16 timeout; /* 0 = 30 seconds, 0xFFFF = disable */
213 __le16 dseg_count; /* Data segment count. */
214 __le32 relative_offset;
216 __le16 reserved_1[3];
218 __le32 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
242 #define CTIO_FAST_AUTH_ERR 0x63
243 #define CTIO_FAST_INCOMP_PAD_LEN 0x65
244 #define CTIO_FAST_INVALID_REQ 0x66
245 #define CTIO_FAST_SPI_ERR 0x67
248 #ifndef CTIO_RET_TYPE
249 #define CTIO_RET_TYPE 0x17 /* CTIO return entry */
250 #define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */
283 #define F_CTL_EXCH_CONTEXT_RESP BIT_23
284 #define F_CTL_SEQ_CONTEXT_RESIP BIT_22
285 #define F_CTL_LAST_SEQ BIT_20
286 #define F_CTL_END_SEQ BIT_19
287 #define F_CTL_SEQ_INITIATIVE BIT_16
289 #define R_CTL_BASIC_LINK_SERV 0x80
290 #define R_CTL_B_ACC 0x4
291 #define R_CTL_B_RJT 0x5
293 struct atio7_fcp_cmnd {
298 uint8_t task_mgmt_flags;
299 #define FCP_CMND_TASK_MGMT_CLEAR_ACA 6
300 #define FCP_CMND_TASK_MGMT_TARGET_RESET 5
301 #define FCP_CMND_TASK_MGMT_LU_RESET 4
302 #define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET 2
303 #define FCP_CMND_TASK_MGMT_ABORT_TASK_SET 1
306 uint8_t add_cdb_len:6;
309 * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4
310 * only to make sizeof(struct atio7_fcp_cmnd) be as expected by
311 * BUILD_BUG_ON in qlt_init().
314 /* __le32 data_length; */
318 * ISP queue - Accept Target I/O (ATIO) type entry IOCB structure.
319 * This is sent from the ISP to the target driver.
321 struct atio_from_isp {
325 uint8_t sys_define; /* System defined. */
326 uint8_t entry_status; /* Entry Status. */
327 __le32 sys_define_2; /* System defined. */
335 uint8_t execution_codes;
336 uint8_t cdb[MAX_CMDSZ];
339 uint8_t initiator_port_name[WWN_SIZE]; /* on qla23xx */
340 __le16 reserved_32[6];
345 uint8_t fcp_cmnd_len_low;
346 uint8_t fcp_cmnd_len_high:4;
348 __le32 exchange_addr;
349 #define ATIO_EXCHANGE_ADDRESS_UNKNOWN 0xFFFFFFFF
350 struct fcp_hdr fcp_hdr;
351 struct atio7_fcp_cmnd fcp_cmnd;
354 uint8_t entry_type; /* Entry type. */
355 uint8_t entry_count; /* Entry count. */
356 __le16 attr_n_length;
357 #define FCP_CMD_LENGTH_MASK 0x0fff
358 #define FCP_CMD_LENGTH_MIN 0x38
361 #define ATIO_PROCESSED 0xDEADDEAD /* Signature */
366 static inline int fcpcmd_is_corrupted(struct atio *atio)
368 if (atio->entry_type == ATIO_TYPE7 &&
369 ((le16_to_cpu(atio->attr_n_length) & FCP_CMD_LENGTH_MASK) <
376 /* adjust corrupted atio so we won't trip over the same entry again. */
377 static inline void adjust_corrupted_atio(struct atio_from_isp *atio)
379 atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN);
380 atio->u.isp24.fcp_cmnd.add_cdb_len = 0;
383 static inline int get_datalen_for_atio(struct atio_from_isp *atio)
385 int len = atio->u.isp24.fcp_cmnd.add_cdb_len;
387 return get_unaligned_be32(&atio->u.isp24.fcp_cmnd.add_cdb[len * 4]);
390 #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
393 * ISP queue - Continue Target I/O (ATIO) type 7 entry (for 24xx) structure.
394 * This structure is sent to the ISP 24xx from the target driver.
397 struct ctio7_to_24xx {
398 uint8_t entry_type; /* Entry type. */
399 uint8_t entry_count; /* Entry count. */
400 uint8_t sys_define; /* System defined. */
401 uint8_t entry_status; /* Entry Status. */
402 uint32_t handle; /* System defined handle */
404 #define CTIO7_NHANDLE_UNRECOGNIZED 0xFFFF
406 __le16 dseg_count; /* Data segment count. */
409 le_id_t initiator_id;
411 __le32 exchange_addr;
421 #define EF_EN_EDIF BIT_0
422 #define EF_NEW_SA BIT_1
428 __le32 relative_offset;
430 __le32 transfer_length;
442 uint8_t sense_data[24];
448 * ISP queue - CTIO type 7 from ISP 24xx to target driver
449 * returned entry structure.
451 struct ctio7_from_24xx {
452 uint8_t entry_type; /* Entry type. */
453 uint8_t entry_count; /* Entry count. */
454 uint8_t sys_define; /* System defined. */
455 uint8_t entry_status; /* Entry Status. */
456 uint32_t handle; /* System defined handle */
459 __le16 dseg_count; /* Data segment count. */
461 uint8_t reserved1[5];
462 __le32 exchange_address;
463 __le16 edif_sa_index;
468 __le32 relative_offset;
469 uint8_t reserved4[24];
472 /* CTIO7 flags values */
473 #define CTIO7_FLAGS_SEND_STATUS BIT_15
474 #define CTIO7_FLAGS_TERMINATE BIT_14
475 #define CTIO7_FLAGS_CONFORM_REQ BIT_13
476 #define CTIO7_FLAGS_DONT_RET_CTIO BIT_8
477 #define CTIO7_FLAGS_STATUS_MODE_0 0
478 #define CTIO7_FLAGS_STATUS_MODE_1 BIT_6
479 #define CTIO7_FLAGS_STATUS_MODE_2 BIT_7
480 #define CTIO7_FLAGS_EXPLICIT_CONFORM BIT_5
481 #define CTIO7_FLAGS_CONFIRM_SATISF BIT_4
482 #define CTIO7_FLAGS_DSD_PTR BIT_2
483 #define CTIO7_FLAGS_DATA_IN BIT_1 /* data to initiator */
484 #define CTIO7_FLAGS_DATA_OUT BIT_0 /* data from initiator */
486 #define ELS_PLOGI 0x3
487 #define ELS_FLOGI 0x4
489 #define ELS_PRLI 0x20
490 #define ELS_PRLO 0x21
491 #define ELS_TPRLO 0x24
492 #define ELS_PDISC 0x50
493 #define ELS_ADISC 0x52
496 *CTIO Type CRC_2 IOCB
498 struct ctio_crc2_to_fw {
499 uint8_t entry_type; /* Entry type. */
500 #define CTIO_CRC2 0x7A
501 uint8_t entry_count; /* Entry count. */
502 uint8_t sys_define; /* System defined. */
503 uint8_t entry_status; /* Entry Status. */
505 uint32_t handle; /* System handle. */
506 __le16 nport_handle; /* N_PORT handle. */
507 __le16 timeout; /* Command timeout. */
509 __le16 dseg_count; /* Data segment count. */
511 uint8_t add_flags; /* additional flags */
512 #define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3
514 le_id_t initiator_id; /* initiator ID */
516 __le32 exchange_addr; /* rcv exchange address */
518 __le16 flags; /* refer to CTIO7 flags values */
522 __le32 relative_offset;
524 __le32 transfer_length; /* total fc transfer length */
526 __le64 crc_context_address __packed; /* Data segment address. */
527 __le16 crc_context_len; /* Data segment length. */
528 __le16 reserved_1; /* MUST be set to 0. */
531 /* CTIO Type CRC_x Status IOCB */
532 struct ctio_crc_from_fw {
533 uint8_t entry_type; /* Entry type. */
534 uint8_t entry_count; /* Entry count. */
535 uint8_t sys_define; /* System defined. */
536 uint8_t entry_status; /* Entry Status. */
538 uint32_t handle; /* System handle. */
540 __le16 timeout; /* Command timeout. */
541 __le16 dseg_count; /* Data segment count. */
544 #define CTIO_CRC_SF_DIF_CHOPPED BIT_4
546 __le32 exchange_address; /* rcv exchange address */
549 __le32 resid_xfer_length;
551 uint8_t reserved3[12];
552 __le16 runt_guard; /* reported runt blk guard */
553 uint8_t actual_dif[8];
554 uint8_t expected_dif[8];
558 * ISP queue - ABTS received/response entries structure definition for 24xx.
560 #define ABTS_RECV_24XX 0x54 /* ABTS received (for 24xx) */
561 #define ABTS_RESP_24XX 0x55 /* ABTS responce (for 24xx) */
564 * ISP queue - ABTS received IOCB entry structure definition for 24xx.
565 * The ABTS BLS received from the wire is sent to the
566 * target driver by the ISP 24xx.
567 * The IOCB is placed on the response queue.
569 struct abts_recv_from_24xx {
570 uint8_t entry_type; /* Entry type. */
571 uint8_t entry_count; /* Entry count. */
572 uint8_t sys_define; /* System defined. */
573 uint8_t entry_status; /* Entry Status. */
574 uint8_t reserved_1[6];
576 uint8_t reserved_2[2];
578 uint8_t reserved_3:4;
580 __le32 exchange_address;
581 struct fcp_hdr_le fcp_hdr_le;
582 uint8_t reserved_4[16];
583 __le32 exchange_addr_to_abort;
586 #define ABTS_PARAM_ABORT_SEQ BIT_0
591 uint8_t seq_id_valid;
592 #define SEQ_ID_VALID 0x80
593 #define SEQ_ID_INVALID 0x00
604 #define BA_RJT_REASON_CODE_INVALID_COMMAND 0x1
605 #define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM 0x9
610 * ISP queue - ABTS Response IOCB entry structure definition for 24xx.
611 * The ABTS response to the ABTS received is sent by the
612 * target driver to the ISP 24xx.
613 * The IOCB is placed on the request queue.
615 struct abts_resp_to_24xx {
616 uint8_t entry_type; /* Entry type. */
617 uint8_t entry_count; /* Entry count. */
618 uint8_t sys_define; /* System defined. */
619 uint8_t entry_status; /* Entry Status. */
623 __le16 control_flags;
624 #define ABTS_CONTR_FLG_TERM_EXCHG BIT_0
626 uint8_t reserved_3:4;
628 __le32 exchange_address;
629 struct fcp_hdr_le fcp_hdr_le;
631 struct ba_acc_le ba_acct;
632 struct ba_rjt_le ba_rjt;
635 __le32 exchange_addr_to_abort;
639 * ISP queue - ABTS Response IOCB from ISP24xx Firmware entry structure.
640 * The ABTS response with completion status to the ABTS response
641 * (sent by the target driver to the ISP 24xx) is sent by the
642 * ISP24xx firmware to the target driver.
643 * The IOCB is placed on the response queue.
645 struct abts_resp_from_24xx_fw {
646 uint8_t entry_type; /* Entry type. */
647 uint8_t entry_count; /* Entry count. */
648 uint8_t sys_define; /* System defined. */
649 uint8_t entry_status; /* Entry Status. */
652 #define ABTS_RESP_COMPL_SUCCESS 0
653 #define ABTS_RESP_COMPL_SUBCODE_ERROR 0x31
657 uint8_t reserved_3:4;
659 __le32 exchange_address;
660 struct fcp_hdr_le fcp_hdr_le;
661 uint8_t reserved_4[8];
662 __le32 error_subcode1;
663 #define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM 0x1E
664 __le32 error_subcode2;
665 __le32 exchange_addr_to_abort;
668 /********************************************************************\
669 * Type Definitions used by initiator & target halves
670 \********************************************************************/
672 struct qla_tgt_mgmt_cmd;
677 * This structure provides a template of function calls that the
678 * target driver (from within qla_target.c) can issue to the
679 * target module (tcm_qla2xxx).
681 struct qla_tgt_func_tmpl {
682 struct qla_tgt_cmd *(*find_cmd_by_tag)(struct fc_port *, uint64_t);
683 int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *,
684 unsigned char *, uint32_t, int, int, int);
685 void (*handle_data)(struct qla_tgt_cmd *);
686 int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, u64, uint16_t,
688 struct qla_tgt_cmd *(*get_cmd)(struct fc_port *);
689 void (*rel_cmd)(struct qla_tgt_cmd *);
690 void (*free_cmd)(struct qla_tgt_cmd *);
691 void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
692 void (*free_session)(struct fc_port *);
694 int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
696 void (*update_sess)(struct fc_port *, port_id_t, uint16_t, bool);
697 struct fc_port *(*find_sess_by_loop_id)(struct scsi_qla_host *,
699 struct fc_port *(*find_sess_by_s_id)(struct scsi_qla_host *,
701 void (*clear_nacl_from_fcport_map)(struct fc_port *);
702 void (*put_sess)(struct fc_port *);
703 void (*shutdown_sess)(struct fc_port *);
704 int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts);
705 int (*chk_dif_tags)(uint32_t tag);
706 void (*add_target)(struct scsi_qla_host *);
707 void (*remove_target)(struct scsi_qla_host *);
710 int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
712 #include <target/target_core_base.h>
714 #define QLA_TGT_TIMEOUT 10 /* in seconds */
716 #define QLA_TGT_MAX_HW_PENDING_TIME 60 /* in seconds */
718 /* Immediate notify status constants */
719 #define IMM_NTFY_LIP_RESET 0x000E
720 #define IMM_NTFY_LIP_LINK_REINIT 0x000F
721 #define IMM_NTFY_IOCB_OVERFLOW 0x0016
722 #define IMM_NTFY_ABORT_TASK 0x0020
723 #define IMM_NTFY_PORT_LOGOUT 0x0029
724 #define IMM_NTFY_PORT_CONFIG 0x002A
725 #define IMM_NTFY_GLBL_TPRLO 0x002D
726 #define IMM_NTFY_GLBL_LOGO 0x002E
727 #define IMM_NTFY_RESOURCE 0x0034
728 #define IMM_NTFY_MSG_RX 0x0036
729 #define IMM_NTFY_SRR 0x0045
730 #define IMM_NTFY_ELS 0x0046
732 /* Immediate notify task flags */
733 #define IMM_NTFY_TASK_MGMT_SHIFT 8
735 #define QLA_TGT_CLEAR_ACA 0x40
736 #define QLA_TGT_TARGET_RESET 0x20
737 #define QLA_TGT_LUN_RESET 0x10
738 #define QLA_TGT_CLEAR_TS 0x04
739 #define QLA_TGT_ABORT_TS 0x02
740 #define QLA_TGT_ABORT_ALL_SESS 0xFFFF
741 #define QLA_TGT_ABORT_ALL 0xFFFE
742 #define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD
743 #define QLA_TGT_NEXUS_LOSS 0xFFFC
744 #define QLA_TGT_ABTS 0xFFFB
745 #define QLA_TGT_2G_ABORT_TASK 0xFFFA
747 /* Notify Acknowledge flags */
748 #define NOTIFY_ACK_RES_COUNT BIT_8
749 #define NOTIFY_ACK_CLEAR_LIP_RESET BIT_5
750 #define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4
752 /* Command's states */
753 #define QLA_TGT_STATE_NEW 0 /* New command + target processing */
754 #define QLA_TGT_STATE_NEED_DATA 1 /* target needs data to continue */
755 #define QLA_TGT_STATE_DATA_IN 2 /* Data arrived + target processing */
756 #define QLA_TGT_STATE_PROCESSED 3 /* target done processing */
758 /* ATIO task_codes field */
759 #define ATIO_SIMPLE_QUEUE 0
760 #define ATIO_HEAD_OF_QUEUE 1
761 #define ATIO_ORDERED_QUEUE 2
762 #define ATIO_ACA_QUEUE 4
763 #define ATIO_UNTAGGED 5
765 /* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */
766 #define FC_TM_SUCCESS 0
767 #define FC_TM_BAD_FCP_DATA 1
768 #define FC_TM_BAD_CMD 2
769 #define FC_TM_FCP_DATA_MISMATCH 3
770 #define FC_TM_REJECT 4
771 #define FC_TM_FAILED 5
773 #define QLA_TGT_SENSE_VALID(sense) ((sense != NULL) && \
774 (((const uint8_t *)(sense))[0] & 0x70) == 0x70)
776 struct qla_port_24xx_data {
777 uint8_t port_name[WWN_SIZE];
782 struct qla_qpair_hint {
783 struct list_head hint_elem;
784 struct qla_qpair *qpair;
790 struct scsi_qla_host *vha;
791 struct qla_hw_data *ha;
792 struct btree_head64 lun_qpair_map;
793 struct qla_qpair_hint *qphints;
795 * To sync between IRQ handlers and qlt_target_release(). Needed,
796 * because req_pkt() can drop/reaquire HW lock inside. Protected by
799 int atio_irq_cmd_count;
803 /* Target's flags, serialized by pha->hardware_lock */
804 unsigned int link_reinit_iocb_pending:1;
807 * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex
808 * OR hardware_lock for reading.
810 int tgt_stop; /* the target mode driver is being stopped */
811 int tgt_stopped; /* the target mode driver has been stopped */
813 /* Count of sessions refering qla_tgt. Protected by hardware_lock. */
816 /* Protected by hardware_lock */
817 struct list_head del_sess_list;
819 spinlock_t sess_work_lock;
820 struct list_head sess_works_list;
821 struct work_struct sess_work;
823 struct imm_ntfy_from_isp link_reinit_iocb;
824 wait_queue_head_t waitQ;
825 int notify_ack_expected;
826 int abts_resp_expected;
827 int modify_lun_expected;
828 atomic_t tgt_global_resets_count;
829 struct list_head tgt_list_entry;
832 struct qla_tgt_sess_op {
833 struct scsi_qla_host *vha;
835 struct atio_from_isp atio;
836 struct work_struct work;
837 struct list_head cmd_list;
845 TRC_DO_WORK_ERR = BIT_2,
847 TRC_XMIT_DATA = BIT_4,
848 TRC_XMIT_STATUS = BIT_5,
850 TRC_SRR_XRDY = BIT_7,
851 TRC_SRR_TERM = BIT_8,
852 TRC_SRR_CTIO = BIT_9,
854 TRC_CTIO_ERR = BIT_11,
855 TRC_CTIO_DONE = BIT_12,
856 TRC_CTIO_ABORTED = BIT_13,
857 TRC_CTIO_STRANGE = BIT_14,
858 TRC_CMD_DONE = BIT_15,
859 TRC_CMD_CHK_STOP = BIT_16,
860 TRC_CMD_FREE = BIT_17,
861 TRC_DATA_IN = BIT_18,
863 TRC_DIF_ERR = BIT_20,
868 * Do not move cmd_type field. it needs to line up with srb->cmd_type
872 struct se_cmd se_cmd;
873 struct list_head sess_cmd_list;
874 struct fc_port *sess;
875 struct qla_qpair *qpair;
876 uint32_t reset_count;
878 struct work_struct work;
879 /* Sense buffer that will be mapped into outgoing status */
880 unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
883 /* to save extra sess dereferences */
884 unsigned int conf_compl_supported:1;
885 unsigned int sg_mapped:1;
886 unsigned int free_sg:1;
887 unsigned int write_data_transferred:1;
888 unsigned int q_full:1;
889 unsigned int term_exchg:1;
890 unsigned int cmd_sent_to_fw:1;
891 unsigned int cmd_in_wq:1;
895 * This variable may be set from outside the LIO and I/O completion
896 * callback functions. Do not declare this member variable as a
897 * bitfield to avoid a read-modify-write operation when this variable
900 unsigned int aborted;
902 struct scatterlist *sg; /* cmd data buffer SG vector */
903 int sg_cnt; /* SG segments count */
904 int bufflen; /* cmd buffer length */
907 enum dma_data_direction dma_data_direction;
911 uint16_t loop_id; /* to save extra sess dereferences */
912 struct qla_tgt *tgt; /* to save extra sess dereferences */
913 struct scsi_qla_host *vha;
914 struct list_head cmd_list;
916 struct atio_from_isp atio;
918 uint8_t ctx_dsd_alloced;
921 #define DIF_ERR_NONE 0
922 #define DIF_ERR_GRD 1
923 #define DIF_ERR_REF 2
924 #define DIF_ERR_APP 3
926 struct scatterlist *prot_sg;
927 uint32_t prot_sg_cnt;
928 uint32_t blk_sz, num_blks;
929 uint8_t scsi_status, sense_key, asc, ascq;
931 struct crc_context *ctx;
934 uint16_t a_guard, e_guard, a_app_tag, e_app_tag;
935 uint32_t a_ref_tag, e_ref_tag;
936 #define DIF_BUNDL_DMA_VALID 1
939 uint64_t jiffies_at_alloc;
940 uint64_t jiffies_at_free;
942 enum trace_flags trc_flags;
945 struct qla_tgt_sess_work_param {
946 struct list_head sess_works_list_entry;
948 #define QLA_TGT_SESS_WORK_ABORT 1
949 #define QLA_TGT_SESS_WORK_TM 2
953 struct abts_recv_from_24xx abts;
954 struct imm_ntfy_from_isp tm_iocb;
955 struct atio_from_isp tm_iocb2;
959 struct qla_tgt_mgmt_cmd {
964 uint8_t abort_io_attr;
965 struct fc_port *sess;
966 struct qla_qpair *qpair;
967 struct scsi_qla_host *vha;
968 struct se_cmd se_cmd;
969 struct work_struct free_work;
971 #define QLA24XX_MGMT_SEND_NACK BIT_0
972 #define QLA24XX_MGMT_ABORT_IO_ATTR_VALID BIT_1
973 uint32_t reset_count;
974 struct work_struct work;
975 uint64_t unpacked_lun;
977 struct atio_from_isp atio;
978 struct imm_ntfy_from_isp imm_ntfy;
979 struct abts_recv_from_24xx abts;
980 } __packed orig_iocb;
984 struct qla_tgt_cmd *cmd;
987 struct scatterlist *sg; /* cmd data buffer SG vector */
988 unsigned char *sense_buffer;
992 int sense_buffer_len;
996 struct scatterlist *prot_sg;
997 uint16_t prot_seg_cnt;
1001 /* Check for Switch reserved address */
1002 #define IS_SW_RESV_ADDR(_s_id) \
1003 ((_s_id.b.domain == 0xff) && ((_s_id.b.area & 0xf0) == 0xf0))
1005 #define QLA_TGT_XMIT_DATA 1
1006 #define QLA_TGT_XMIT_STATUS 2
1007 #define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
1010 extern struct qla_tgt_data qla_target;
1013 * Function prototypes for qla_target.c logic used by qla2xxx LLD code.
1015 extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
1016 extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
1017 extern int qlt_lport_register(void *, u64, u64, u64,
1018 int (*callback)(struct scsi_qla_host *, void *, u64, u64));
1019 extern void qlt_lport_deregister(struct scsi_qla_host *);
1020 extern void qlt_unreg_sess(struct fc_port *);
1021 extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
1022 extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
1023 extern int __init qlt_init(void);
1024 extern void qlt_exit(void);
1025 extern void qlt_update_vp_map(struct scsi_qla_host *, int);
1026 extern void qlt_free_session_done(struct work_struct *);
1028 * This macro is used during early initializations when host->active_mode
1029 * is not set. Right now, ha value is ignored.
1031 #define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
1033 extern int ql2x_ini_mode;
1035 static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
1037 return ha->host->active_mode == MODE_TARGET;
1040 static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
1042 return ha->host->active_mode == MODE_INITIATOR;
1045 static inline bool qla_dual_mode_enabled(struct scsi_qla_host *ha)
1047 return (ha->host->active_mode == MODE_DUAL);
1050 static inline uint32_t sid_to_key(const be_id_t s_id)
1052 return s_id.domain << 16 |
1058 * Exported symbols from qla_target.c LLD logic used by qla2xxx code..
1060 extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, struct rsp_que *,
1062 extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
1063 extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
1064 extern int qlt_abort_cmd(struct qla_tgt_cmd *);
1065 extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
1066 extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
1067 extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
1068 extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
1069 extern void qlt_enable_vha(struct scsi_qla_host *);
1070 extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
1071 extern u8 qlt_rff_id(struct scsi_qla_host *);
1072 extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
1073 extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);
1074 extern void qlt_24xx_config_rings(struct scsi_qla_host *);
1075 extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
1076 struct nvram_24xx *);
1077 extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
1078 struct init_cb_24xx *);
1079 extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
1080 struct init_cb_81xx *);
1081 extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
1082 struct nvram_81xx *);
1083 extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
1084 struct sts_entry_24xx *);
1085 extern void qlt_modify_vp_config(struct scsi_qla_host *,
1086 struct vp_config_entry_24xx *);
1087 extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
1088 extern int qlt_mem_alloc(struct qla_hw_data *);
1089 extern void qlt_mem_free(struct qla_hw_data *);
1090 extern int qlt_stop_phase1(struct qla_tgt *);
1091 extern void qlt_stop_phase2(struct qla_tgt *);
1092 extern irqreturn_t qla83xx_msix_atio_q(int, void *);
1093 extern void qlt_83xx_iospace_config(struct qla_hw_data *);
1094 extern int qlt_free_qfull_cmds(struct qla_qpair *);
1095 extern void qlt_logo_completion_handler(fc_port_t *, int);
1096 extern void qlt_do_generation_tick(struct scsi_qla_host *, int *);
1098 void qlt_send_resp_ctio(struct qla_qpair *, struct qla_tgt_cmd *, uint8_t,
1099 uint8_t, uint8_t, uint8_t);
1101 #endif /* __QLA_TARGET_H */