2 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
3 * Copyright (C) 2004 - 2005 Leonid Stoljar
4 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
5 * Copyright (C) 2007 - 2010 ID7 Ltd.
7 * Forward port and refactoring to modern qla2xxx and target/configfs
9 * Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org>
11 * Additional file for the target driver support.
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
24 * This is the global def file that is useful for including from the
28 #ifndef __QLA_TARGET_H
29 #define __QLA_TARGET_H
35 * Must be changed on any change in any initiator visible interfaces or
36 * data in the target add-on
38 #define QLA2XXX_TARGET_MAGIC 269
41 * Must be changed on any change in any target visible interfaces or
42 * data in the initiator
44 #define QLA2XXX_INITIATOR_MAGIC 57222
46 #define QLA2XXX_INI_MODE_STR_EXCLUSIVE "exclusive"
47 #define QLA2XXX_INI_MODE_STR_DISABLED "disabled"
48 #define QLA2XXX_INI_MODE_STR_ENABLED "enabled"
49 #define QLA2XXX_INI_MODE_STR_DUAL "dual"
51 #define QLA2XXX_INI_MODE_EXCLUSIVE 0
52 #define QLA2XXX_INI_MODE_DISABLED 1
53 #define QLA2XXX_INI_MODE_ENABLED 2
54 #define QLA2XXX_INI_MODE_DUAL 3
56 #define QLA2XXX_COMMAND_COUNT_INIT 250
57 #define QLA2XXX_IMMED_NOTIFY_COUNT_INIT 250
60 * Used to mark which completion handles (for RIO Status's) are for CTIO's
61 * vs. regular (non-target) info. This is checked for in
62 * qla2x00_process_response_queue() to see if a handle coming back in a
63 * multi-complete should come to the tgt driver or be handled there by qla2xxx
65 #define CTIO_COMPLETION_HANDLE_MARK BIT_29
66 #if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS)
67 #error "CTIO_COMPLETION_HANDLE_MARK not larger than "
68 "DEFAULT_OUTSTANDING_COMMANDS"
70 #define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK)
72 /* Used to mark CTIO as intermediate */
73 #define CTIO_INTERMEDIATE_HANDLE_MARK BIT_30
74 #define QLA_TGT_NULL_HANDLE 0
76 #define QLA_TGT_HANDLE_MASK 0xF0000000
77 #define QLA_QPID_HANDLE_MASK 0x00FF0000 /* qpair id mask */
78 #define QLA_CMD_HANDLE_MASK 0x0000FFFF
79 #define QLA_TGT_SKIP_HANDLE (0xFFFFFFFF & ~QLA_TGT_HANDLE_MASK)
81 #define QLA_QPID_HANDLE_SHIFT 16
82 #define GET_QID(_h) ((_h & QLA_QPID_HANDLE_MASK) >> QLA_QPID_HANDLE_SHIFT)
87 * ISP target entries - Flags bit definitions.
89 #define OF_SS_MODE_0 0
90 #define OF_SS_MODE_1 1
91 #define OF_SS_MODE_2 2
92 #define OF_SS_MODE_3 3
94 #define OF_EXPL_CONF BIT_5 /* Explicit Confirmation Requested */
95 #define OF_DATA_IN BIT_6 /* Data in to initiator */
96 /* (data from target to initiator) */
97 #define OF_DATA_OUT BIT_7 /* Data out from initiator */
98 /* (data from initiator to target) */
99 #define OF_NO_DATA (BIT_7 | BIT_6)
100 #define OF_INC_RC BIT_8 /* Increment command resource count */
101 #define OF_FAST_POST BIT_9 /* Enable mailbox fast posting. */
102 #define OF_CONF_REQ BIT_13 /* Confirmation Requested */
103 #define OF_TERM_EXCH BIT_14 /* Terminate exchange */
104 #define OF_SSTS BIT_15 /* Send SCSI status */
107 #ifndef QLA_TGT_DATASEGS_PER_CMD32
108 #define QLA_TGT_DATASEGS_PER_CMD32 3
109 #define QLA_TGT_DATASEGS_PER_CONT32 7
110 #define QLA_TGT_MAX_SG32(ql) \
111 (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD32 + \
112 QLA_TGT_DATASEGS_PER_CONT32*((ql) - 1)) : 0)
114 #define QLA_TGT_DATASEGS_PER_CMD64 2
115 #define QLA_TGT_DATASEGS_PER_CONT64 5
116 #define QLA_TGT_MAX_SG64(ql) \
117 (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD64 + \
118 QLA_TGT_DATASEGS_PER_CONT64*((ql) - 1)) : 0)
121 #ifndef QLA_TGT_DATASEGS_PER_CMD_24XX
122 #define QLA_TGT_DATASEGS_PER_CMD_24XX 1
123 #define QLA_TGT_DATASEGS_PER_CONT_24XX 5
124 #define QLA_TGT_MAX_SG_24XX(ql) \
125 (min(1270, ((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD_24XX + \
126 QLA_TGT_DATASEGS_PER_CONT_24XX*((ql) - 1)) : 0))
130 #define GET_TARGET_ID(ha, iocb) ((HAS_EXTENDED_IDS(ha)) \
131 ? le16_to_cpu((iocb)->u.isp2x.target.extended) \
132 : (uint16_t)(iocb)->u.isp2x.target.id.standard)
134 #ifndef NOTIFY_ACK_TYPE
135 #define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */
137 * ISP queue - notify acknowledge entry structure definition.
138 * This is sent to the ISP from the target driver.
141 uint8_t entry_type; /* Entry type. */
142 uint8_t entry_count; /* Entry count. */
143 uint8_t sys_define; /* System defined. */
144 uint8_t entry_status; /* Entry Status. */
147 uint32_t sys_define_2; /* System defined. */
157 uint32_t srr_rel_offs;
160 uint16_t srr_reject_code;
161 uint8_t srr_reject_vendor_uniq;
162 uint8_t srr_reject_code_expl;
163 uint8_t reserved_2[24];
167 uint16_t nport_handle;
172 uint8_t status_subcode;
174 uint32_t exchange_address;
175 uint32_t srr_rel_offs;
178 uint8_t reserved_4[19];
180 uint8_t srr_reject_vendor_uniq;
181 uint8_t srr_reject_code_expl;
182 uint8_t srr_reject_code;
183 uint8_t reserved_5[5];
189 #define NOTIFY_ACK_FLAGS_TERMINATE BIT_3
190 #define NOTIFY_ACK_SRR_FLAGS_ACCEPT 0
191 #define NOTIFY_ACK_SRR_FLAGS_REJECT 1
193 #define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM 0x9
195 #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL 0
196 #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA 0x2a
198 #define NOTIFY_ACK_SUCCESS 0x01
201 #ifndef ACCEPT_TGT_IO_TYPE
202 #define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */
205 #ifndef CONTINUE_TGT_IO_TYPE
206 #define CONTINUE_TGT_IO_TYPE 0x17
208 * ISP queue - Continue Target I/O (CTIO) entry for status mode 0 structure.
209 * This structure is sent to the ISP 2xxx from target driver.
211 struct ctio_to_2xxx {
212 uint8_t entry_type; /* Entry type. */
213 uint8_t entry_count; /* Entry count. */
214 uint8_t sys_define; /* System defined. */
215 uint8_t entry_status; /* Entry Status. */
216 uint32_t handle; /* System defined handle */
221 uint16_t timeout; /* 0 = 30 seconds, 0xFFFF = disable */
222 uint16_t dseg_count; /* Data segment count. */
223 uint32_t relative_offset;
225 uint16_t reserved_1[3];
226 uint16_t scsi_status;
227 uint32_t transfer_length;
230 #define ATIO_PATH_INVALID 0x07
231 #define ATIO_CANT_PROV_CAP 0x16
232 #define ATIO_CDB_VALID 0x3D
234 #define ATIO_EXEC_READ BIT_1
235 #define ATIO_EXEC_WRITE BIT_0
238 #ifndef CTIO_A64_TYPE
239 #define CTIO_A64_TYPE 0x1F
240 #define CTIO_SUCCESS 0x01
241 #define CTIO_ABORTED 0x02
242 #define CTIO_INVALID_RX_ID 0x08
243 #define CTIO_TIMEOUT 0x0B
244 #define CTIO_DIF_ERROR 0x0C /* DIF error detected */
245 #define CTIO_LIP_RESET 0x0E
246 #define CTIO_TARGET_RESET 0x17
247 #define CTIO_PORT_UNAVAILABLE 0x28
248 #define CTIO_PORT_LOGGED_OUT 0x29
249 #define CTIO_PORT_CONF_CHANGED 0x2A
250 #define CTIO_SRR_RECEIVED 0x45
253 #ifndef CTIO_RET_TYPE
254 #define CTIO_RET_TYPE 0x17 /* CTIO return entry */
255 #define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */
287 #define F_CTL_EXCH_CONTEXT_RESP BIT_23
288 #define F_CTL_SEQ_CONTEXT_RESIP BIT_22
289 #define F_CTL_LAST_SEQ BIT_20
290 #define F_CTL_END_SEQ BIT_19
291 #define F_CTL_SEQ_INITIATIVE BIT_16
293 #define R_CTL_BASIC_LINK_SERV 0x80
294 #define R_CTL_B_ACC 0x4
295 #define R_CTL_B_RJT 0x5
297 struct atio7_fcp_cmnd {
302 uint8_t task_mgmt_flags;
303 #define FCP_CMND_TASK_MGMT_CLEAR_ACA 6
304 #define FCP_CMND_TASK_MGMT_TARGET_RESET 5
305 #define FCP_CMND_TASK_MGMT_LU_RESET 4
306 #define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET 2
307 #define FCP_CMND_TASK_MGMT_ABORT_TASK_SET 1
310 uint8_t add_cdb_len:6;
313 * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4
314 * only to make sizeof(struct atio7_fcp_cmnd) be as expected by
315 * BUILD_BUG_ON in qlt_init().
318 /* uint32_t data_length; */
322 * ISP queue - Accept Target I/O (ATIO) type entry IOCB structure.
323 * This is sent from the ISP to the target driver.
325 struct atio_from_isp {
329 uint8_t sys_define; /* System defined. */
330 uint8_t entry_status; /* Entry Status. */
331 uint32_t sys_define_2; /* System defined. */
339 uint8_t execution_codes;
340 uint8_t cdb[MAX_CMDSZ];
341 uint32_t data_length;
343 uint8_t initiator_port_name[WWN_SIZE]; /* on qla23xx */
344 uint16_t reserved_32[6];
349 uint8_t fcp_cmnd_len_low;
350 uint8_t fcp_cmnd_len_high:4;
352 uint32_t exchange_addr;
353 #define ATIO_EXCHANGE_ADDRESS_UNKNOWN 0xFFFFFFFF
354 struct fcp_hdr fcp_hdr;
355 struct atio7_fcp_cmnd fcp_cmnd;
358 uint8_t entry_type; /* Entry type. */
359 uint8_t entry_count; /* Entry count. */
360 __le16 attr_n_length;
361 #define FCP_CMD_LENGTH_MASK 0x0fff
362 #define FCP_CMD_LENGTH_MIN 0x38
365 #define ATIO_PROCESSED 0xDEADDEAD /* Signature */
370 static inline int fcpcmd_is_corrupted(struct atio *atio)
372 if (atio->entry_type == ATIO_TYPE7 &&
373 ((le16_to_cpu(atio->attr_n_length) & FCP_CMD_LENGTH_MASK) <
380 /* adjust corrupted atio so we won't trip over the same entry again. */
381 static inline void adjust_corrupted_atio(struct atio_from_isp *atio)
383 atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN);
384 atio->u.isp24.fcp_cmnd.add_cdb_len = 0;
387 static inline int get_datalen_for_atio(struct atio_from_isp *atio)
389 int len = atio->u.isp24.fcp_cmnd.add_cdb_len;
391 return (be32_to_cpu(get_unaligned((uint32_t *)
392 &atio->u.isp24.fcp_cmnd.add_cdb[len * 4])));
395 #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
398 * ISP queue - Continue Target I/O (ATIO) type 7 entry (for 24xx) structure.
399 * This structure is sent to the ISP 24xx from the target driver.
402 struct ctio7_to_24xx {
403 uint8_t entry_type; /* Entry type. */
404 uint8_t entry_count; /* Entry count. */
405 uint8_t sys_define; /* System defined. */
406 uint8_t entry_status; /* Entry Status. */
407 uint32_t handle; /* System defined handle */
408 uint16_t nport_handle;
409 #define CTIO7_NHANDLE_UNRECOGNIZED 0xFFFF
411 uint16_t dseg_count; /* Data segment count. */
414 uint8_t initiator_id[3];
416 uint32_t exchange_addr;
423 uint16_t scsi_status;
424 uint32_t relative_offset;
426 uint32_t transfer_length;
431 uint16_t sense_length;
435 uint16_t scsi_status;
436 uint16_t response_len;
438 uint8_t sense_data[24];
444 * ISP queue - CTIO type 7 from ISP 24xx to target driver
445 * returned entry structure.
447 struct ctio7_from_24xx {
448 uint8_t entry_type; /* Entry type. */
449 uint8_t entry_count; /* Entry count. */
450 uint8_t sys_define; /* System defined. */
451 uint8_t entry_status; /* Entry Status. */
452 uint32_t handle; /* System defined handle */
455 uint16_t dseg_count; /* Data segment count. */
457 uint8_t reserved1[5];
458 uint32_t exchange_address;
464 uint32_t relative_offset;
465 uint8_t reserved4[24];
468 /* CTIO7 flags values */
469 #define CTIO7_FLAGS_SEND_STATUS BIT_15
470 #define CTIO7_FLAGS_TERMINATE BIT_14
471 #define CTIO7_FLAGS_CONFORM_REQ BIT_13
472 #define CTIO7_FLAGS_DONT_RET_CTIO BIT_8
473 #define CTIO7_FLAGS_STATUS_MODE_0 0
474 #define CTIO7_FLAGS_STATUS_MODE_1 BIT_6
475 #define CTIO7_FLAGS_STATUS_MODE_2 BIT_7
476 #define CTIO7_FLAGS_EXPLICIT_CONFORM BIT_5
477 #define CTIO7_FLAGS_CONFIRM_SATISF BIT_4
478 #define CTIO7_FLAGS_DSD_PTR BIT_2
479 #define CTIO7_FLAGS_DATA_IN BIT_1 /* data to initiator */
480 #define CTIO7_FLAGS_DATA_OUT BIT_0 /* data from initiator */
482 #define ELS_PLOGI 0x3
483 #define ELS_FLOGI 0x4
485 #define ELS_PRLI 0x20
486 #define ELS_PRLO 0x21
487 #define ELS_TPRLO 0x24
488 #define ELS_PDISC 0x50
489 #define ELS_ADISC 0x52
492 *CTIO Type CRC_2 IOCB
494 struct ctio_crc2_to_fw {
495 uint8_t entry_type; /* Entry type. */
496 #define CTIO_CRC2 0x7A
497 uint8_t entry_count; /* Entry count. */
498 uint8_t sys_define; /* System defined. */
499 uint8_t entry_status; /* Entry Status. */
501 uint32_t handle; /* System handle. */
502 uint16_t nport_handle; /* N_PORT handle. */
503 __le16 timeout; /* Command timeout. */
505 uint16_t dseg_count; /* Data segment count. */
507 uint8_t add_flags; /* additional flags */
508 #define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3
510 uint8_t initiator_id[3]; /* initiator ID */
512 uint32_t exchange_addr; /* rcv exchange address */
514 __le16 flags; /* refer to CTIO7 flags values */
517 uint16_t scsi_status;
518 __le32 relative_offset;
520 __le32 transfer_length; /* total fc transfer length */
522 __le64 crc_context_address __packed; /* Data segment address. */
523 uint16_t crc_context_len; /* Data segment length. */
524 uint16_t reserved_1; /* MUST be set to 0. */
527 /* CTIO Type CRC_x Status IOCB */
528 struct ctio_crc_from_fw {
529 uint8_t entry_type; /* Entry type. */
530 uint8_t entry_count; /* Entry count. */
531 uint8_t sys_define; /* System defined. */
532 uint8_t entry_status; /* Entry Status. */
534 uint32_t handle; /* System handle. */
536 uint16_t timeout; /* Command timeout. */
537 uint16_t dseg_count; /* Data segment count. */
539 uint16_t state_flags;
540 #define CTIO_CRC_SF_DIF_CHOPPED BIT_4
542 uint32_t exchange_address; /* rcv exchange address */
545 uint32_t resid_xfer_length;
547 uint8_t reserved3[12];
548 uint16_t runt_guard; /* reported runt blk guard */
549 uint8_t actual_dif[8];
550 uint8_t expected_dif[8];
554 * ISP queue - ABTS received/response entries structure definition for 24xx.
556 #define ABTS_RECV_24XX 0x54 /* ABTS received (for 24xx) */
557 #define ABTS_RESP_24XX 0x55 /* ABTS responce (for 24xx) */
560 * ISP queue - ABTS received IOCB entry structure definition for 24xx.
561 * The ABTS BLS received from the wire is sent to the
562 * target driver by the ISP 24xx.
563 * The IOCB is placed on the response queue.
565 struct abts_recv_from_24xx {
566 uint8_t entry_type; /* Entry type. */
567 uint8_t entry_count; /* Entry count. */
568 uint8_t sys_define; /* System defined. */
569 uint8_t entry_status; /* Entry Status. */
570 uint8_t reserved_1[6];
571 uint16_t nport_handle;
572 uint8_t reserved_2[2];
574 uint8_t reserved_3:4;
576 uint32_t exchange_address;
577 struct fcp_hdr_le fcp_hdr_le;
578 uint8_t reserved_4[16];
579 uint32_t exchange_addr_to_abort;
582 #define ABTS_PARAM_ABORT_SEQ BIT_0
587 uint8_t seq_id_valid;
588 #define SEQ_ID_VALID 0x80
589 #define SEQ_ID_INVALID 0x00
592 uint16_t high_seq_cnt;
593 uint16_t low_seq_cnt;
600 #define BA_RJT_REASON_CODE_INVALID_COMMAND 0x1
601 #define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM 0x9
606 * ISP queue - ABTS Response IOCB entry structure definition for 24xx.
607 * The ABTS response to the ABTS received is sent by the
608 * target driver to the ISP 24xx.
609 * The IOCB is placed on the request queue.
611 struct abts_resp_to_24xx {
612 uint8_t entry_type; /* Entry type. */
613 uint8_t entry_count; /* Entry count. */
614 uint8_t sys_define; /* System defined. */
615 uint8_t entry_status; /* Entry Status. */
618 uint16_t nport_handle;
619 uint16_t control_flags;
620 #define ABTS_CONTR_FLG_TERM_EXCHG BIT_0
622 uint8_t reserved_3:4;
624 uint32_t exchange_address;
625 struct fcp_hdr_le fcp_hdr_le;
627 struct ba_acc_le ba_acct;
628 struct ba_rjt_le ba_rjt;
631 uint32_t exchange_addr_to_abort;
635 * ISP queue - ABTS Response IOCB from ISP24xx Firmware entry structure.
636 * The ABTS response with completion status to the ABTS response
637 * (sent by the target driver to the ISP 24xx) is sent by the
638 * ISP24xx firmware to the target driver.
639 * The IOCB is placed on the response queue.
641 struct abts_resp_from_24xx_fw {
642 uint8_t entry_type; /* Entry type. */
643 uint8_t entry_count; /* Entry count. */
644 uint8_t sys_define; /* System defined. */
645 uint8_t entry_status; /* Entry Status. */
647 uint16_t compl_status;
648 #define ABTS_RESP_COMPL_SUCCESS 0
649 #define ABTS_RESP_COMPL_SUBCODE_ERROR 0x31
650 uint16_t nport_handle;
653 uint8_t reserved_3:4;
655 uint32_t exchange_address;
656 struct fcp_hdr_le fcp_hdr_le;
657 uint8_t reserved_4[8];
658 uint32_t error_subcode1;
659 #define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM 0x1E
660 uint32_t error_subcode2;
661 uint32_t exchange_addr_to_abort;
664 /********************************************************************\
665 * Type Definitions used by initiator & target halves
666 \********************************************************************/
668 struct qla_tgt_mgmt_cmd;
673 * This structure provides a template of function calls that the
674 * target driver (from within qla_target.c) can issue to the
675 * target module (tcm_qla2xxx).
677 struct qla_tgt_func_tmpl {
678 struct qla_tgt_cmd *(*find_cmd_by_tag)(struct fc_port *, uint64_t);
679 int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *,
680 unsigned char *, uint32_t, int, int, int);
681 void (*handle_data)(struct qla_tgt_cmd *);
682 int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, u64, uint16_t,
684 void (*free_cmd)(struct qla_tgt_cmd *);
685 void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
686 void (*free_session)(struct fc_port *);
688 int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
690 void (*update_sess)(struct fc_port *, port_id_t, uint16_t, bool);
691 struct fc_port *(*find_sess_by_loop_id)(struct scsi_qla_host *,
693 struct fc_port *(*find_sess_by_s_id)(struct scsi_qla_host *,
695 void (*clear_nacl_from_fcport_map)(struct fc_port *);
696 void (*put_sess)(struct fc_port *);
697 void (*shutdown_sess)(struct fc_port *);
698 int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts);
699 int (*chk_dif_tags)(uint32_t tag);
700 void (*add_target)(struct scsi_qla_host *);
701 void (*remove_target)(struct scsi_qla_host *);
704 int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
706 #include <target/target_core_base.h>
708 #define QLA_TGT_TIMEOUT 10 /* in seconds */
710 #define QLA_TGT_MAX_HW_PENDING_TIME 60 /* in seconds */
712 /* Immediate notify status constants */
713 #define IMM_NTFY_LIP_RESET 0x000E
714 #define IMM_NTFY_LIP_LINK_REINIT 0x000F
715 #define IMM_NTFY_IOCB_OVERFLOW 0x0016
716 #define IMM_NTFY_ABORT_TASK 0x0020
717 #define IMM_NTFY_PORT_LOGOUT 0x0029
718 #define IMM_NTFY_PORT_CONFIG 0x002A
719 #define IMM_NTFY_GLBL_TPRLO 0x002D
720 #define IMM_NTFY_GLBL_LOGO 0x002E
721 #define IMM_NTFY_RESOURCE 0x0034
722 #define IMM_NTFY_MSG_RX 0x0036
723 #define IMM_NTFY_SRR 0x0045
724 #define IMM_NTFY_ELS 0x0046
726 /* Immediate notify task flags */
727 #define IMM_NTFY_TASK_MGMT_SHIFT 8
729 #define QLA_TGT_CLEAR_ACA 0x40
730 #define QLA_TGT_TARGET_RESET 0x20
731 #define QLA_TGT_LUN_RESET 0x10
732 #define QLA_TGT_CLEAR_TS 0x04
733 #define QLA_TGT_ABORT_TS 0x02
734 #define QLA_TGT_ABORT_ALL_SESS 0xFFFF
735 #define QLA_TGT_ABORT_ALL 0xFFFE
736 #define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD
737 #define QLA_TGT_NEXUS_LOSS 0xFFFC
738 #define QLA_TGT_ABTS 0xFFFB
739 #define QLA_TGT_2G_ABORT_TASK 0xFFFA
741 /* Notify Acknowledge flags */
742 #define NOTIFY_ACK_RES_COUNT BIT_8
743 #define NOTIFY_ACK_CLEAR_LIP_RESET BIT_5
744 #define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4
746 /* Command's states */
747 #define QLA_TGT_STATE_NEW 0 /* New command + target processing */
748 #define QLA_TGT_STATE_NEED_DATA 1 /* target needs data to continue */
749 #define QLA_TGT_STATE_DATA_IN 2 /* Data arrived + target processing */
750 #define QLA_TGT_STATE_PROCESSED 3 /* target done processing */
752 /* ATIO task_codes field */
753 #define ATIO_SIMPLE_QUEUE 0
754 #define ATIO_HEAD_OF_QUEUE 1
755 #define ATIO_ORDERED_QUEUE 2
756 #define ATIO_ACA_QUEUE 4
757 #define ATIO_UNTAGGED 5
759 /* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */
760 #define FC_TM_SUCCESS 0
761 #define FC_TM_BAD_FCP_DATA 1
762 #define FC_TM_BAD_CMD 2
763 #define FC_TM_FCP_DATA_MISMATCH 3
764 #define FC_TM_REJECT 4
765 #define FC_TM_FAILED 5
767 #define QLA_TGT_SENSE_VALID(sense) ((sense != NULL) && \
768 (((const uint8_t *)(sense))[0] & 0x70) == 0x70)
770 struct qla_port_24xx_data {
771 uint8_t port_name[WWN_SIZE];
776 struct qla_qpair_hint {
777 struct list_head hint_elem;
778 struct qla_qpair *qpair;
784 struct scsi_qla_host *vha;
785 struct qla_hw_data *ha;
786 struct btree_head64 lun_qpair_map;
787 struct qla_qpair_hint *qphints;
789 * To sync between IRQ handlers and qlt_target_release(). Needed,
790 * because req_pkt() can drop/reaquire HW lock inside. Protected by
793 int atio_irq_cmd_count;
797 /* Target's flags, serialized by pha->hardware_lock */
798 unsigned int link_reinit_iocb_pending:1;
801 * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex
802 * OR hardware_lock for reading.
804 int tgt_stop; /* the target mode driver is being stopped */
805 int tgt_stopped; /* the target mode driver has been stopped */
807 /* Count of sessions refering qla_tgt. Protected by hardware_lock. */
810 /* Protected by hardware_lock */
811 struct list_head del_sess_list;
813 spinlock_t sess_work_lock;
814 struct list_head sess_works_list;
815 struct work_struct sess_work;
817 struct imm_ntfy_from_isp link_reinit_iocb;
818 wait_queue_head_t waitQ;
819 int notify_ack_expected;
820 int abts_resp_expected;
821 int modify_lun_expected;
822 atomic_t tgt_global_resets_count;
823 struct list_head tgt_list_entry;
826 struct qla_tgt_sess_op {
827 struct scsi_qla_host *vha;
829 struct atio_from_isp atio;
830 struct work_struct work;
831 struct list_head cmd_list;
839 TRC_DO_WORK_ERR = BIT_2,
841 TRC_XMIT_DATA = BIT_4,
842 TRC_XMIT_STATUS = BIT_5,
844 TRC_SRR_XRDY = BIT_7,
845 TRC_SRR_TERM = BIT_8,
846 TRC_SRR_CTIO = BIT_9,
848 TRC_CTIO_ERR = BIT_11,
849 TRC_CTIO_DONE = BIT_12,
850 TRC_CTIO_ABORTED = BIT_13,
851 TRC_CTIO_STRANGE = BIT_14,
852 TRC_CMD_DONE = BIT_15,
853 TRC_CMD_CHK_STOP = BIT_16,
854 TRC_CMD_FREE = BIT_17,
855 TRC_DATA_IN = BIT_18,
857 TRC_DIF_ERR = BIT_20,
862 * Do not move cmd_type field. it needs to line up with srb->cmd_type
866 struct se_cmd se_cmd;
867 struct fc_port *sess;
868 struct qla_qpair *qpair;
869 uint32_t reset_count;
871 struct work_struct work;
872 /* Sense buffer that will be mapped into outgoing status */
873 unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
876 /* to save extra sess dereferences */
877 unsigned int conf_compl_supported:1;
878 unsigned int sg_mapped:1;
879 unsigned int free_sg:1;
880 unsigned int write_data_transferred:1;
881 unsigned int q_full:1;
882 unsigned int term_exchg:1;
883 unsigned int cmd_sent_to_fw:1;
884 unsigned int cmd_in_wq:1;
887 * This variable may be set from outside the LIO and I/O completion
888 * callback functions. Do not declare this member variable as a
889 * bitfield to avoid a read-modify-write operation when this variable
892 unsigned int aborted;
894 struct scatterlist *sg; /* cmd data buffer SG vector */
895 int sg_cnt; /* SG segments count */
896 int bufflen; /* cmd buffer length */
899 enum dma_data_direction dma_data_direction;
903 uint16_t loop_id; /* to save extra sess dereferences */
904 struct qla_tgt *tgt; /* to save extra sess dereferences */
905 struct scsi_qla_host *vha;
906 struct list_head cmd_list;
908 struct atio_from_isp atio;
910 uint8_t ctx_dsd_alloced;
913 #define DIF_ERR_NONE 0
914 #define DIF_ERR_GRD 1
915 #define DIF_ERR_REF 2
916 #define DIF_ERR_APP 3
918 struct scatterlist *prot_sg;
919 uint32_t prot_sg_cnt;
920 uint32_t blk_sz, num_blks;
921 uint8_t scsi_status, sense_key, asc, ascq;
923 struct crc_context *ctx;
926 uint16_t a_guard, e_guard, a_app_tag, e_app_tag;
927 uint32_t a_ref_tag, e_ref_tag;
928 #define DIF_BUNDL_DMA_VALID 1
931 uint64_t jiffies_at_alloc;
932 uint64_t jiffies_at_free;
934 enum trace_flags trc_flags;
937 struct qla_tgt_sess_work_param {
938 struct list_head sess_works_list_entry;
940 #define QLA_TGT_SESS_WORK_ABORT 1
941 #define QLA_TGT_SESS_WORK_TM 2
945 struct abts_recv_from_24xx abts;
946 struct imm_ntfy_from_isp tm_iocb;
947 struct atio_from_isp tm_iocb2;
951 struct qla_tgt_mgmt_cmd {
956 uint8_t abort_io_attr;
957 struct fc_port *sess;
958 struct qla_qpair *qpair;
959 struct scsi_qla_host *vha;
960 struct se_cmd se_cmd;
961 struct work_struct free_work;
963 #define QLA24XX_MGMT_SEND_NACK BIT_0
964 #define QLA24XX_MGMT_ABORT_IO_ATTR_VALID BIT_1
965 uint32_t reset_count;
966 struct work_struct work;
967 uint64_t unpacked_lun;
969 struct atio_from_isp atio;
970 struct imm_ntfy_from_isp imm_ntfy;
971 struct abts_recv_from_24xx abts;
972 } __packed orig_iocb;
976 struct qla_tgt_cmd *cmd;
979 struct scatterlist *sg; /* cmd data buffer SG vector */
980 unsigned char *sense_buffer;
984 int sense_buffer_len;
988 struct scatterlist *prot_sg;
989 uint16_t prot_seg_cnt;
993 /* Check for Switch reserved address */
994 #define IS_SW_RESV_ADDR(_s_id) \
995 ((_s_id.b.domain == 0xff) && ((_s_id.b.area & 0xf0) == 0xf0))
997 #define QLA_TGT_XMIT_DATA 1
998 #define QLA_TGT_XMIT_STATUS 2
999 #define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
1002 extern struct qla_tgt_data qla_target;
1005 * Function prototypes for qla_target.c logic used by qla2xxx LLD code.
1007 extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
1008 extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
1009 extern int qlt_lport_register(void *, u64, u64, u64,
1010 int (*callback)(struct scsi_qla_host *, void *, u64, u64));
1011 extern void qlt_lport_deregister(struct scsi_qla_host *);
1012 extern void qlt_unreg_sess(struct fc_port *);
1013 extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
1014 extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
1015 extern int __init qlt_init(void);
1016 extern void qlt_exit(void);
1017 extern void qlt_update_vp_map(struct scsi_qla_host *, int);
1018 extern void qlt_free_session_done(struct work_struct *);
1020 * This macro is used during early initializations when host->active_mode
1021 * is not set. Right now, ha value is ignored.
1023 #define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
1025 extern int ql2x_ini_mode;
1027 static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
1029 return ha->host->active_mode == MODE_TARGET;
1032 static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
1034 return ha->host->active_mode == MODE_INITIATOR;
1037 static inline bool qla_dual_mode_enabled(struct scsi_qla_host *ha)
1039 return (ha->host->active_mode == MODE_DUAL);
1042 static inline uint32_t sid_to_key(const uint8_t *s_id)
1046 key = (((unsigned long)s_id[0] << 16) |
1047 ((unsigned long)s_id[1] << 8) |
1048 (unsigned long)s_id[2]);
1052 static inline void sid_to_portid(const uint8_t *s_id, port_id_t *p)
1054 memset(p, 0, sizeof(*p));
1055 p->b.domain = s_id[0];
1056 p->b.area = s_id[1];
1057 p->b.al_pa = s_id[2];
1061 * Exported symbols from qla_target.c LLD logic used by qla2xxx code..
1063 extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, struct rsp_que *,
1065 extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
1066 extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
1067 extern int qlt_abort_cmd(struct qla_tgt_cmd *);
1068 extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
1069 extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
1070 extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
1071 extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
1072 extern void qlt_enable_vha(struct scsi_qla_host *);
1073 extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
1074 extern u8 qlt_rff_id(struct scsi_qla_host *);
1075 extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
1076 extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);
1077 extern void qlt_24xx_config_rings(struct scsi_qla_host *);
1078 extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
1079 struct nvram_24xx *);
1080 extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
1081 struct init_cb_24xx *);
1082 extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
1083 struct init_cb_81xx *);
1084 extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
1085 struct nvram_81xx *);
1086 extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
1087 struct sts_entry_24xx *);
1088 extern void qlt_modify_vp_config(struct scsi_qla_host *,
1089 struct vp_config_entry_24xx *);
1090 extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
1091 extern int qlt_mem_alloc(struct qla_hw_data *);
1092 extern void qlt_mem_free(struct qla_hw_data *);
1093 extern int qlt_stop_phase1(struct qla_tgt *);
1094 extern void qlt_stop_phase2(struct qla_tgt *);
1095 extern irqreturn_t qla83xx_msix_atio_q(int, void *);
1096 extern void qlt_83xx_iospace_config(struct qla_hw_data *);
1097 extern int qlt_free_qfull_cmds(struct qla_qpair *);
1098 extern void qlt_logo_completion_handler(fc_port_t *, int);
1099 extern void qlt_do_generation_tick(struct scsi_qla_host *, int *);
1101 void qlt_send_resp_ctio(struct qla_qpair *, struct qla_tgt_cmd *, uint8_t,
1102 uint8_t, uint8_t, uint8_t);
1104 #endif /* __QLA_TARGET_H */