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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>4 * Copyright (C) 2004 - 2005 Leonid Stoljar5 * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>6 * Copyright (C) 2007 - 2010 ID7 Ltd.7 *8 * Forward port and refactoring to modern qla2xxx and target/configfs9 *10 * Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org>11 *12 * Additional file for the target driver support.13 */14/*15 * This is the global def file that is useful for including from the16 * target portion.17 */18 19#ifndef __QLA_TARGET_H20#define __QLA_TARGET_H21 22#include "qla_def.h"23#include "qla_dsd.h"24 25/*26 * Must be changed on any change in any initiator visible interfaces or27 * data in the target add-on28 */29#define QLA2XXX_TARGET_MAGIC 26930 31/*32 * Must be changed on any change in any target visible interfaces or33 * data in the initiator34 */35#define QLA2XXX_INITIATOR_MAGIC 5722236 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"41 42#define QLA2XXX_INI_MODE_EXCLUSIVE 043#define QLA2XXX_INI_MODE_DISABLED 144#define QLA2XXX_INI_MODE_ENABLED 245#define QLA2XXX_INI_MODE_DUAL 346 47#define QLA2XXX_COMMAND_COUNT_INIT 25048#define QLA2XXX_IMMED_NOTIFY_COUNT_INIT 25049 50/*51 * Used to mark which completion handles (for RIO Status's) are for CTIO's52 * vs. regular (non-target) info. This is checked for in53 * qla2x00_process_response_queue() to see if a handle coming back in a54 * multi-complete should come to the tgt driver or be handled there by qla2xxx55 */56#define CTIO_COMPLETION_HANDLE_MARK BIT_2957#if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS)58#error "CTIO_COMPLETION_HANDLE_MARK not larger than "59 "DEFAULT_OUTSTANDING_COMMANDS"60#endif61#define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK)62 63/* Used to mark CTIO as intermediate */64#define CTIO_INTERMEDIATE_HANDLE_MARK BIT_3065#define QLA_TGT_NULL_HANDLE 066 67#define QLA_TGT_HANDLE_MASK 0xF000000068#define QLA_QPID_HANDLE_MASK 0x00FF0000 /* qpair id mask */69#define QLA_CMD_HANDLE_MASK 0x0000FFFF70#define QLA_TGT_SKIP_HANDLE (0xFFFFFFFF & ~QLA_TGT_HANDLE_MASK)71 72#define QLA_QPID_HANDLE_SHIFT 1673#define GET_QID(_h) ((_h & QLA_QPID_HANDLE_MASK) >> QLA_QPID_HANDLE_SHIFT)74 75 76#ifndef OF_SS_MODE_077/*78 * ISP target entries - Flags bit definitions.79 */80#define OF_SS_MODE_0 081#define OF_SS_MODE_1 182#define OF_SS_MODE_2 283#define OF_SS_MODE_3 384 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 */96#endif97 98#ifndef QLA_TGT_DATASEGS_PER_CMD3299#define QLA_TGT_DATASEGS_PER_CMD32 3100#define QLA_TGT_DATASEGS_PER_CONT32 7101#define QLA_TGT_MAX_SG32(ql) \102 (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD32 + \103 QLA_TGT_DATASEGS_PER_CONT32*((ql) - 1)) : 0)104 105#define QLA_TGT_DATASEGS_PER_CMD64 2106#define QLA_TGT_DATASEGS_PER_CONT64 5107#define QLA_TGT_MAX_SG64(ql) \108 (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD64 + \109 QLA_TGT_DATASEGS_PER_CONT64*((ql) - 1)) : 0)110#endif111 112#ifndef QLA_TGT_DATASEGS_PER_CMD_24XX113#define QLA_TGT_DATASEGS_PER_CMD_24XX 1114#define QLA_TGT_DATASEGS_PER_CONT_24XX 5115#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))118#endif119 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)123 124#ifndef NOTIFY_ACK_TYPE125#define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */126/*127 * ISP queue - notify acknowledge entry structure definition.128 * This is sent to the ISP from the target driver.129 */130struct nack_to_isp {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. */135 union {136 struct {137 __le32 sys_define_2; /* System defined. */138 target_id_t target;139 uint8_t target_id;140 uint8_t reserved_1;141 __le16 flags;142 __le16 resp_code;143 __le16 status;144 __le16 task_flags;145 __le16 seq_id;146 __le16 srr_rx_id;147 __le32 srr_rel_offs;148 __le16 srr_ui;149 __le16 srr_flags;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];154 } isp2x;155 struct {156 uint32_t handle;157 __le16 nport_handle;158 uint16_t reserved_1;159 __le16 flags;160 __le16 srr_rx_id;161 __le16 status;162 uint8_t status_subcode;163 uint8_t fw_handle;164 __le32 exchange_address;165 __le32 srr_rel_offs;166 __le16 srr_ui;167 __le16 srr_flags;168 uint8_t reserved_4[19];169 uint8_t vp_index;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];174 } isp24;175 } u;176 uint8_t reserved[2];177 __le16 ox_id;178} __packed;179#define NOTIFY_ACK_FLAGS_FCSP BIT_5180#define NOTIFY_ACK_FLAGS_TERMINATE BIT_3181#define NOTIFY_ACK_SRR_FLAGS_ACCEPT 0182#define NOTIFY_ACK_SRR_FLAGS_REJECT 1183 184#define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM 0x9185 186#define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL 0187#define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA 0x2a188 189#define NOTIFY_ACK_SUCCESS 0x01190#endif191 192#ifndef ACCEPT_TGT_IO_TYPE193#define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */194#endif195 196#ifndef CONTINUE_TGT_IO_TYPE197#define CONTINUE_TGT_IO_TYPE 0x17198/*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.201 */202struct 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 */208 target_id_t target;209 __le16 rx_id;210 __le16 flags;211 __le16 status;212 __le16 timeout; /* 0 = 30 seconds, 0xFFFF = disable */213 __le16 dseg_count; /* Data segment count. */214 __le32 relative_offset;215 __le32 residual;216 __le16 reserved_1[3];217 __le16 scsi_status;218 __le32 transfer_length;219 struct dsd32 dsd[3];220} __packed;221#define ATIO_PATH_INVALID 0x07222#define ATIO_CANT_PROV_CAP 0x16223#define ATIO_CDB_VALID 0x3D224 225#define ATIO_EXEC_READ BIT_1226#define ATIO_EXEC_WRITE BIT_0227#endif228 229#ifndef CTIO_A64_TYPE230#define CTIO_A64_TYPE 0x1F231#define CTIO_SUCCESS 0x01232#define CTIO_ABORTED 0x02233#define CTIO_INVALID_RX_ID 0x08234#define CTIO_TIMEOUT 0x0B235#define CTIO_DIF_ERROR 0x0C /* DIF error detected */236#define CTIO_LIP_RESET 0x0E237#define CTIO_TARGET_RESET 0x17238#define CTIO_PORT_UNAVAILABLE 0x28239#define CTIO_PORT_LOGGED_OUT 0x29240#define CTIO_PORT_CONF_CHANGED 0x2A241#define CTIO_SRR_RECEIVED 0x45242#define CTIO_FAST_AUTH_ERR 0x63243#define CTIO_FAST_INCOMP_PAD_LEN 0x65244#define CTIO_FAST_INVALID_REQ 0x66245#define CTIO_FAST_SPI_ERR 0x67246#endif247 248#ifndef CTIO_RET_TYPE249#define CTIO_RET_TYPE 0x17 /* CTIO return entry */250#define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */251#endif252 253struct fcp_hdr {254 uint8_t r_ctl;255 be_id_t d_id;256 uint8_t cs_ctl;257 be_id_t s_id;258 uint8_t type;259 uint8_t f_ctl[3];260 uint8_t seq_id;261 uint8_t df_ctl;262 uint16_t seq_cnt;263 __be16 ox_id;264 uint16_t rx_id;265 __le32 parameter;266};267 268struct fcp_hdr_le {269 le_id_t d_id;270 uint8_t r_ctl;271 le_id_t s_id;272 uint8_t cs_ctl;273 uint8_t f_ctl[3];274 uint8_t type;275 __le16 seq_cnt;276 uint8_t df_ctl;277 uint8_t seq_id;278 __le16 rx_id;279 __le16 ox_id;280 __le32 parameter;281};282 283#define F_CTL_EXCH_CONTEXT_RESP BIT_23284#define F_CTL_SEQ_CONTEXT_RESIP BIT_22285#define F_CTL_LAST_SEQ BIT_20286#define F_CTL_END_SEQ BIT_19287#define F_CTL_SEQ_INITIATIVE BIT_16288 289#define R_CTL_BASIC_LINK_SERV 0x80290#define R_CTL_B_ACC 0x4291#define R_CTL_B_RJT 0x5292 293struct atio7_fcp_cmnd {294 uint64_t lun;295 uint8_t cmnd_ref;296 uint8_t task_attr:3;297 uint8_t reserved:5;298 uint8_t task_mgmt_flags;299#define FCP_CMND_TASK_MGMT_CLEAR_ACA 6300#define FCP_CMND_TASK_MGMT_TARGET_RESET 5301#define FCP_CMND_TASK_MGMT_LU_RESET 4302#define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET 2303#define FCP_CMND_TASK_MGMT_ABORT_TASK_SET 1304 uint8_t wrdata:1;305 uint8_t rddata:1;306 uint8_t add_cdb_len:6;307 uint8_t cdb[16];308 /*309 * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4310 * only to make sizeof(struct atio7_fcp_cmnd) be as expected by311 * BUILD_BUG_ON in qlt_init().312 */313 uint8_t add_cdb[4];314 /* __le32 data_length; */315} __packed;316 317/*318 * ISP queue - Accept Target I/O (ATIO) type entry IOCB structure.319 * This is sent from the ISP to the target driver.320 */321struct atio_from_isp {322 union {323 struct {324 __le16 entry_hdr;325 uint8_t sys_define; /* System defined. */326 uint8_t entry_status; /* Entry Status. */327 __le32 sys_define_2; /* System defined. */328 target_id_t target;329 __le16 rx_id;330 __le16 flags;331 __le16 status;332 uint8_t command_ref;333 uint8_t task_codes;334 uint8_t task_flags;335 uint8_t execution_codes;336 uint8_t cdb[MAX_CMDSZ];337 __le32 data_length;338 __le16 lun;339 uint8_t initiator_port_name[WWN_SIZE]; /* on qla23xx */340 __le16 reserved_32[6];341 __le16 ox_id;342 } isp2x;343 struct {344 __le16 entry_hdr;345 uint8_t fcp_cmnd_len_low;346 uint8_t fcp_cmnd_len_high:4;347 uint8_t attr:4;348 __le32 exchange_addr;349#define ATIO_EXCHANGE_ADDRESS_UNKNOWN 0xFFFFFFFF350 struct fcp_hdr fcp_hdr;351 struct atio7_fcp_cmnd fcp_cmnd;352 } isp24;353 struct {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 0x0fff358#define FCP_CMD_LENGTH_MIN 0x38359 uint8_t data[56];360 __le32 signature;361#define ATIO_PROCESSED 0xDEADDEAD /* Signature */362 } raw;363 } u;364} __packed;365 366static inline int fcpcmd_is_corrupted(struct atio *atio)367{368 if (atio->entry_type == ATIO_TYPE7 &&369 ((le16_to_cpu(atio->attr_n_length) & FCP_CMD_LENGTH_MASK) <370 FCP_CMD_LENGTH_MIN))371 return 1;372 else373 return 0;374}375 376/* adjust corrupted atio so we won't trip over the same entry again. */377static inline void adjust_corrupted_atio(struct atio_from_isp *atio)378{379 atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN);380 atio->u.isp24.fcp_cmnd.add_cdb_len = 0;381}382 383static inline int get_datalen_for_atio(struct atio_from_isp *atio)384{385 int len = atio->u.isp24.fcp_cmnd.add_cdb_len;386 387 return get_unaligned_be32(&atio->u.isp24.fcp_cmnd.add_cdb[len * 4]);388}389 390#define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */391 392/*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.395 */396 397struct 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 */403 __le16 nport_handle;404#define CTIO7_NHANDLE_UNRECOGNIZED 0xFFFF405 __le16 timeout;406 __le16 dseg_count; /* Data segment count. */407 uint8_t vp_index;408 uint8_t add_flags;409 le_id_t initiator_id;410 uint8_t reserved;411 __le32 exchange_addr;412 union {413 struct {414 __le16 reserved1;415 __le16 flags;416 union {417 __le32 residual;418 struct {419 uint8_t rsvd1;420 uint8_t edif_flags;421#define EF_EN_EDIF BIT_0422#define EF_NEW_SA BIT_1423 uint16_t rsvd2;424 };425 };426 __le16 ox_id;427 __le16 scsi_status;428 __le32 relative_offset;429 __le32 reserved2;430 __le32 transfer_length;431 __le32 reserved3;432 struct dsd64 dsd;433 } status0;434 struct {435 __le16 sense_length;436 __le16 flags;437 __le32 residual;438 __le16 ox_id;439 __le16 scsi_status;440 __le16 response_len;441 __le16 reserved;442 uint8_t sense_data[24];443 } status1;444 } u;445} __packed;446 447/*448 * ISP queue - CTIO type 7 from ISP 24xx to target driver449 * returned entry structure.450 */451struct 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 */457 __le16 status;458 __le16 timeout;459 __le16 dseg_count; /* Data segment count. */460 uint8_t vp_index;461 uint8_t reserved1[5];462 __le32 exchange_address;463 __le16 edif_sa_index;464 __le16 flags;465 __le32 residual;466 __le16 ox_id;467 __le16 reserved3;468 __le32 relative_offset;469 uint8_t reserved4[24];470} __packed;471 472/* CTIO7 flags values */473#define CTIO7_FLAGS_SEND_STATUS BIT_15474#define CTIO7_FLAGS_TERMINATE BIT_14475#define CTIO7_FLAGS_CONFORM_REQ BIT_13476#define CTIO7_FLAGS_DONT_RET_CTIO BIT_8477#define CTIO7_FLAGS_STATUS_MODE_0 0478#define CTIO7_FLAGS_STATUS_MODE_1 BIT_6479#define CTIO7_FLAGS_STATUS_MODE_2 BIT_7480#define CTIO7_FLAGS_EXPLICIT_CONFORM BIT_5481#define CTIO7_FLAGS_CONFIRM_SATISF BIT_4482#define CTIO7_FLAGS_DSD_PTR BIT_2483#define CTIO7_FLAGS_DATA_IN BIT_1 /* data to initiator */484#define CTIO7_FLAGS_DATA_OUT BIT_0 /* data from initiator */485 486#define ELS_PLOGI 0x3487#define ELS_FLOGI 0x4488#define ELS_LOGO 0x5489#define ELS_PRLI 0x20490#define ELS_PRLO 0x21491#define ELS_TPRLO 0x24492#define ELS_PDISC 0x50493#define ELS_ADISC 0x52494 495/*496 *CTIO Type CRC_2 IOCB497 */498struct ctio_crc2_to_fw {499 uint8_t entry_type; /* Entry type. */500#define CTIO_CRC2 0x7A501 uint8_t entry_count; /* Entry count. */502 uint8_t sys_define; /* System defined. */503 uint8_t entry_status; /* Entry Status. */504 505 uint32_t handle; /* System handle. */506 __le16 nport_handle; /* N_PORT handle. */507 __le16 timeout; /* Command timeout. */508 509 __le16 dseg_count; /* Data segment count. */510 uint8_t vp_index;511 uint8_t add_flags; /* additional flags */512#define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3513 514 le_id_t initiator_id; /* initiator ID */515 uint8_t reserved1;516 __le32 exchange_addr; /* rcv exchange address */517 __le16 reserved2;518 __le16 flags; /* refer to CTIO7 flags values */519 __le32 residual;520 __le16 ox_id;521 __le16 scsi_status;522 __le32 relative_offset;523 __le32 reserved5;524 __le32 transfer_length; /* total fc transfer length */525 __le32 reserved6;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. */529};530 531/* CTIO Type CRC_x Status IOCB */532struct 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. */537 538 uint32_t handle; /* System handle. */539 __le16 status;540 __le16 timeout; /* Command timeout. */541 __le16 dseg_count; /* Data segment count. */542 __le32 reserved1;543 __le16 state_flags;544#define CTIO_CRC_SF_DIF_CHOPPED BIT_4545 546 __le32 exchange_address; /* rcv exchange address */547 __le16 reserved2;548 __le16 flags;549 __le32 resid_xfer_length;550 __le16 ox_id;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];555} __packed;556 557/*558 * ISP queue - ABTS received/response entries structure definition for 24xx.559 */560#define ABTS_RECV_24XX 0x54 /* ABTS received (for 24xx) */561#define ABTS_RESP_24XX 0x55 /* ABTS responce (for 24xx) */562 563/*564 * ISP queue - ABTS received IOCB entry structure definition for 24xx.565 * The ABTS BLS received from the wire is sent to the566 * target driver by the ISP 24xx.567 * The IOCB is placed on the response queue.568 */569struct 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];575 __le16 nport_handle;576 uint8_t reserved_2[2];577 uint8_t vp_index;578 uint8_t reserved_3:4;579 uint8_t sof_type: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;584} __packed;585 586#define ABTS_PARAM_ABORT_SEQ BIT_0587 588struct ba_acc_le {589 __le16 reserved;590 uint8_t seq_id_last;591 uint8_t seq_id_valid;592#define SEQ_ID_VALID 0x80593#define SEQ_ID_INVALID 0x00594 __le16 rx_id;595 __le16 ox_id;596 __le16 high_seq_cnt;597 __le16 low_seq_cnt;598} __packed;599 600struct ba_rjt_le {601 uint8_t vendor_uniq;602 uint8_t reason_expl;603 uint8_t reason_code;604#define BA_RJT_REASON_CODE_INVALID_COMMAND 0x1605#define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM 0x9606 uint8_t reserved;607} __packed;608 609/*610 * ISP queue - ABTS Response IOCB entry structure definition for 24xx.611 * The ABTS response to the ABTS received is sent by the612 * target driver to the ISP 24xx.613 * The IOCB is placed on the request queue.614 */615struct 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. */620 uint32_t handle;621 __le16 reserved_1;622 __le16 nport_handle;623 __le16 control_flags;624#define ABTS_CONTR_FLG_TERM_EXCHG BIT_0625 uint8_t vp_index;626 uint8_t reserved_3:4;627 uint8_t sof_type:4;628 __le32 exchange_address;629 struct fcp_hdr_le fcp_hdr_le;630 union {631 struct ba_acc_le ba_acct;632 struct ba_rjt_le ba_rjt;633 } __packed payload;634 __le32 reserved_4;635 __le32 exchange_addr_to_abort;636} __packed;637 638/*639 * ISP queue - ABTS Response IOCB from ISP24xx Firmware entry structure.640 * The ABTS response with completion status to the ABTS response641 * (sent by the target driver to the ISP 24xx) is sent by the642 * ISP24xx firmware to the target driver.643 * The IOCB is placed on the response queue.644 */645struct 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. */650 uint32_t handle;651 __le16 compl_status;652#define ABTS_RESP_COMPL_SUCCESS 0653#define ABTS_RESP_COMPL_SUBCODE_ERROR 0x31654 __le16 nport_handle;655 __le16 reserved_1;656 uint8_t reserved_2;657 uint8_t reserved_3:4;658 uint8_t sof_type: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 0x1E664 __le32 error_subcode2;665 __le32 exchange_addr_to_abort;666} __packed;667 668/********************************************************************\669 * Type Definitions used by initiator & target halves670\********************************************************************/671 672struct qla_tgt_mgmt_cmd;673struct fc_port;674struct qla_tgt_cmd;675 676/*677 * This structure provides a template of function calls that the678 * target driver (from within qla_target.c) can issue to the679 * target module (tcm_qla2xxx).680 */681struct 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,687 uint32_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 *);693 694 int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,695 struct fc_port *);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 *,698 const uint16_t);699 struct fc_port *(*find_sess_by_s_id)(struct scsi_qla_host *,700 const be_id_t);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 *);708};709 710int qla2x00_wait_for_hba_online(struct scsi_qla_host *);711 712#include <target/target_core_base.h>713 714#define QLA_TGT_TIMEOUT 10 /* in seconds */715 716#define QLA_TGT_MAX_HW_PENDING_TIME 60 /* in seconds */717 718/* Immediate notify status constants */719#define IMM_NTFY_LIP_RESET 0x000E720#define IMM_NTFY_LIP_LINK_REINIT 0x000F721#define IMM_NTFY_IOCB_OVERFLOW 0x0016722#define IMM_NTFY_ABORT_TASK 0x0020723#define IMM_NTFY_PORT_LOGOUT 0x0029724#define IMM_NTFY_PORT_CONFIG 0x002A725#define IMM_NTFY_GLBL_TPRLO 0x002D726#define IMM_NTFY_GLBL_LOGO 0x002E727#define IMM_NTFY_RESOURCE 0x0034728#define IMM_NTFY_MSG_RX 0x0036729#define IMM_NTFY_SRR 0x0045730#define IMM_NTFY_ELS 0x0046731 732/* Immediate notify task flags */733#define IMM_NTFY_TASK_MGMT_SHIFT 8734 735#define QLA_TGT_CLEAR_ACA 0x40736#define QLA_TGT_TARGET_RESET 0x20737#define QLA_TGT_LUN_RESET 0x10738#define QLA_TGT_CLEAR_TS 0x04739#define QLA_TGT_ABORT_TS 0x02740#define QLA_TGT_ABORT_ALL_SESS 0xFFFF741#define QLA_TGT_ABORT_ALL 0xFFFE742#define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD743#define QLA_TGT_NEXUS_LOSS 0xFFFC744#define QLA_TGT_ABTS 0xFFFB745#define QLA_TGT_2G_ABORT_TASK 0xFFFA746 747/* Notify Acknowledge flags */748#define NOTIFY_ACK_RES_COUNT BIT_8749#define NOTIFY_ACK_CLEAR_LIP_RESET BIT_5750#define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4751 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 */757 758/* ATIO task_codes field */759#define ATIO_SIMPLE_QUEUE 0760#define ATIO_HEAD_OF_QUEUE 1761#define ATIO_ORDERED_QUEUE 2762#define ATIO_ACA_QUEUE 4763#define ATIO_UNTAGGED 5764 765/* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */766#define FC_TM_SUCCESS 0767#define FC_TM_BAD_FCP_DATA 1768#define FC_TM_BAD_CMD 2769#define FC_TM_FCP_DATA_MISMATCH 3770#define FC_TM_REJECT 4771#define FC_TM_FAILED 5772 773#define QLA_TGT_SENSE_VALID(sense) ((sense != NULL) && \774 (((const uint8_t *)(sense))[0] & 0x70) == 0x70)775 776struct qla_port_24xx_data {777 uint8_t port_name[WWN_SIZE];778 uint16_t loop_id;779 uint16_t reserved;780};781 782struct qla_qpair_hint {783 struct list_head hint_elem;784 struct qla_qpair *qpair;785 u16 cpuid;786 uint8_t cmd_cnt;787};788 789struct qla_tgt {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;794 /*795 * To sync between IRQ handlers and qlt_target_release(). Needed,796 * because req_pkt() can drop/reaquire HW lock inside. Protected by797 * HW lock.798 */799 int atio_irq_cmd_count;800 801 int sg_tablesize;802 803 /* Target's flags, serialized by pha->hardware_lock */804 unsigned int link_reinit_iocb_pending:1;805 806 /*807 * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex808 * OR hardware_lock for reading.809 */810 int tgt_stop; /* the target mode driver is being stopped */811 int tgt_stopped; /* the target mode driver has been stopped */812 813 /* Count of sessions refering qla_tgt. Protected by hardware_lock. */814 int sess_count;815 816 spinlock_t sess_work_lock;817 struct list_head sess_works_list;818 struct work_struct sess_work;819 820 struct imm_ntfy_from_isp link_reinit_iocb;821 wait_queue_head_t waitQ;822 int notify_ack_expected;823 int abts_resp_expected;824 int modify_lun_expected;825 atomic_t tgt_global_resets_count;826 struct list_head tgt_list_entry;827};828 829struct qla_tgt_sess_op {830 struct scsi_qla_host *vha;831 uint32_t chip_reset;832 struct atio_from_isp atio;833 struct work_struct work;834 struct list_head cmd_list;835 bool aborted;836 struct rsp_que *rsp;837};838 839enum trace_flags {840 TRC_NEW_CMD = BIT_0,841 TRC_DO_WORK = BIT_1,842 TRC_DO_WORK_ERR = BIT_2,843 TRC_XFR_RDY = BIT_3,844 TRC_XMIT_DATA = BIT_4,845 TRC_XMIT_STATUS = BIT_5,846 TRC_SRR_RSP = BIT_6,847 TRC_SRR_XRDY = BIT_7,848 TRC_SRR_TERM = BIT_8,849 TRC_SRR_CTIO = BIT_9,850 TRC_FLUSH = BIT_10,851 TRC_CTIO_ERR = BIT_11,852 TRC_CTIO_DONE = BIT_12,853 TRC_CTIO_ABORTED = BIT_13,854 TRC_CTIO_STRANGE = BIT_14,855 TRC_CMD_DONE = BIT_15,856 TRC_CMD_CHK_STOP = BIT_16,857 TRC_CMD_FREE = BIT_17,858 TRC_DATA_IN = BIT_18,859 TRC_ABORT = BIT_19,860 TRC_DIF_ERR = BIT_20,861};862 863struct qla_tgt_cmd {864 /*865 * Do not move cmd_type field. it needs to line up with srb->cmd_type866 */867 uint8_t cmd_type;868 uint8_t pad[7];869 struct se_cmd se_cmd;870 struct list_head sess_cmd_list;871 struct fc_port *sess;872 struct qla_qpair *qpair;873 uint32_t reset_count;874 int state;875 struct work_struct work;876 /* Sense buffer that will be mapped into outgoing status */877 unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];878 879 spinlock_t cmd_lock;880 /* to save extra sess dereferences */881 unsigned int conf_compl_supported:1;882 unsigned int sg_mapped:1;883 unsigned int write_data_transferred:1;884 unsigned int q_full:1;885 unsigned int term_exchg:1;886 unsigned int cmd_sent_to_fw:1;887 unsigned int cmd_in_wq:1;888 unsigned int edif:1;889 890 /*891 * This variable may be set from outside the LIO and I/O completion892 * callback functions. Do not declare this member variable as a893 * bitfield to avoid a read-modify-write operation when this variable894 * is set.895 */896 unsigned int aborted;897 898 struct scatterlist *sg; /* cmd data buffer SG vector */899 int sg_cnt; /* SG segments count */900 int bufflen; /* cmd buffer length */901 int offset;902 u64 unpacked_lun;903 enum dma_data_direction dma_data_direction;904 905 uint16_t ctio_flags;906 uint16_t vp_idx;907 uint16_t loop_id; /* to save extra sess dereferences */908 struct qla_tgt *tgt; /* to save extra sess dereferences */909 struct scsi_qla_host *vha;910 struct list_head cmd_list;911 912 struct atio_from_isp atio;913 914 uint8_t ctx_dsd_alloced;915 916 /* T10-DIF */917#define DIF_ERR_NONE 0918#define DIF_ERR_GRD 1919#define DIF_ERR_REF 2920#define DIF_ERR_APP 3921 int8_t dif_err_code;922 struct scatterlist *prot_sg;923 uint32_t prot_sg_cnt;924 uint32_t blk_sz, num_blks;925 uint8_t scsi_status, sense_key, asc, ascq;926 927 struct crc_context *ctx;928 const uint8_t *cdb;929 uint64_t lba;930 uint16_t a_guard, e_guard, a_app_tag, e_app_tag;931 uint32_t a_ref_tag, e_ref_tag;932#define DIF_BUNDL_DMA_VALID 1933 uint16_t prot_flags;934 935 uint64_t jiffies_at_alloc;936 uint64_t jiffies_at_free;937 938 enum trace_flags trc_flags;939};940 941struct qla_tgt_sess_work_param {942 struct list_head sess_works_list_entry;943 944#define QLA_TGT_SESS_WORK_ABORT 1945 int type;946 947 union {948 struct abts_recv_from_24xx abts;949 struct imm_ntfy_from_isp tm_iocb;950 struct atio_from_isp tm_iocb2;951 };952};953 954struct qla_tgt_mgmt_cmd {955 uint8_t cmd_type;956 uint8_t pad[3];957 uint16_t tmr_func;958 uint8_t fc_tm_rsp;959 uint8_t abort_io_attr;960 struct fc_port *sess;961 struct qla_qpair *qpair;962 struct scsi_qla_host *vha;963 struct se_cmd se_cmd;964 struct work_struct free_work;965 unsigned int flags;966#define QLA24XX_MGMT_SEND_NACK BIT_0967#define QLA24XX_MGMT_ABORT_IO_ATTR_VALID BIT_1968 uint32_t reset_count;969 struct work_struct work;970 uint64_t unpacked_lun;971 union {972 struct atio_from_isp atio;973 struct imm_ntfy_from_isp imm_ntfy;974 struct abts_recv_from_24xx abts;975 } __packed orig_iocb;976};977 978struct qla_tgt_prm {979 struct qla_tgt_cmd *cmd;980 struct qla_tgt *tgt;981 void *pkt;982 struct scatterlist *sg; /* cmd data buffer SG vector */983 unsigned char *sense_buffer;984 int seg_cnt;985 int req_cnt;986 uint16_t rq_result;987 int sense_buffer_len;988 int residual;989 int add_status_pkt;990 /* dif */991 struct scatterlist *prot_sg;992 uint16_t prot_seg_cnt;993 uint16_t tot_dsds;994};995 996/* Check for Switch reserved address */997#define IS_SW_RESV_ADDR(_s_id) \998 ((_s_id.b.domain == 0xff) && ((_s_id.b.area & 0xf0) == 0xf0))999 1000#define QLA_TGT_XMIT_DATA 11001#define QLA_TGT_XMIT_STATUS 21002#define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)1003 1004 1005extern struct qla_tgt_data qla_target;1006 1007/*1008 * Function prototypes for qla_target.c logic used by qla2xxx LLD code.1009 */1010extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);1011extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);1012extern int qlt_lport_register(void *, u64, u64, u64,1013 int (*callback)(struct scsi_qla_host *, void *, u64, u64));1014extern void qlt_lport_deregister(struct scsi_qla_host *);1015extern void qlt_unreg_sess(struct fc_port *);1016extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);1017extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);1018extern int __init qlt_init(void);1019extern void qlt_exit(void);1020extern void qlt_free_session_done(struct work_struct *);1021/*1022 * This macro is used during early initializations when host->active_mode1023 * is not set. Right now, ha value is ignored.1024 */1025#define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)1026 1027extern int ql2x_ini_mode;1028 1029static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)1030{1031 return ha->host->active_mode == MODE_TARGET;1032}1033 1034static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)1035{1036 return ha->host->active_mode == MODE_INITIATOR;1037}1038 1039static inline bool qla_dual_mode_enabled(struct scsi_qla_host *ha)1040{1041 return (ha->host->active_mode == MODE_DUAL);1042}1043 1044static inline uint32_t sid_to_key(const be_id_t s_id)1045{1046 return s_id.domain << 16 |1047 s_id.area << 8 |1048 s_id.al_pa;1049}1050 1051/*1052 * Exported symbols from qla_target.c LLD logic used by qla2xxx code..1053 */1054extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, struct rsp_que *,1055 response_t *);1056extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);1057extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);1058extern int qlt_abort_cmd(struct qla_tgt_cmd *);1059extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);1060extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);1061extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);1062extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);1063extern void qlt_enable_vha(struct scsi_qla_host *);1064extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);1065extern u8 qlt_rff_id(struct scsi_qla_host *);1066extern void qlt_init_atio_q_entries(struct scsi_qla_host *);1067extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);1068extern void qlt_24xx_config_rings(struct scsi_qla_host *);1069extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,1070 struct nvram_24xx *);1071extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,1072 struct init_cb_24xx *);1073extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,1074 struct init_cb_81xx *);1075extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,1076 struct nvram_81xx *);1077extern void qlt_modify_vp_config(struct scsi_qla_host *,1078 struct vp_config_entry_24xx *);1079extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);1080extern int qlt_mem_alloc(struct qla_hw_data *);1081extern void qlt_mem_free(struct qla_hw_data *);1082extern int qlt_stop_phase1(struct qla_tgt *);1083extern void qlt_stop_phase2(struct qla_tgt *);1084extern irqreturn_t qla83xx_msix_atio_q(int, void *);1085extern void qlt_83xx_iospace_config(struct qla_hw_data *);1086extern int qlt_free_qfull_cmds(struct qla_qpair *);1087extern void qlt_logo_completion_handler(fc_port_t *, int);1088extern void qlt_do_generation_tick(struct scsi_qla_host *, int *);1089 1090void qlt_send_resp_ctio(struct qla_qpair *, struct qla_tgt_cmd *, uint8_t,1091 uint8_t, uint8_t, uint8_t);1092 1093#endif /* __QLA_TARGET_H */1094