| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net> |
| * Copyright (C) 2004 - 2005 Leonid Stoljar |
| * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us> |
| * Copyright (C) 2007 - 2010 ID7 Ltd. |
| * |
| * Forward port and refactoring to modern qla2xxx and target/configfs |
| * |
| * Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org> |
| * |
| * Additional file for the target driver support. |
| */ |
| /* |
| * This is the global def file that is useful for including from the |
| * target portion. |
| */ |
| |
| #ifndef __QLA_TARGET_H |
| #define __QLA_TARGET_H |
| |
| #include "qla_def.h" |
| #include "qla_dsd.h" |
| |
| /* |
| * Must be changed on any change in any initiator visible interfaces or |
| * data in the target add-on |
| */ |
| #define QLA2XXX_TARGET_MAGIC 269 |
| |
| /* |
| * Must be changed on any change in any target visible interfaces or |
| * data in the initiator |
| */ |
| #define QLA2XXX_INITIATOR_MAGIC 57222 |
| |
| #define QLA2XXX_INI_MODE_STR_EXCLUSIVE "exclusive" |
| #define QLA2XXX_INI_MODE_STR_DISABLED "disabled" |
| #define QLA2XXX_INI_MODE_STR_ENABLED "enabled" |
| #define QLA2XXX_INI_MODE_STR_DUAL "dual" |
| |
| #define QLA2XXX_INI_MODE_EXCLUSIVE 0 |
| #define QLA2XXX_INI_MODE_DISABLED 1 |
| #define QLA2XXX_INI_MODE_ENABLED 2 |
| #define QLA2XXX_INI_MODE_DUAL 3 |
| |
| #define QLA2XXX_COMMAND_COUNT_INIT 250 |
| #define QLA2XXX_IMMED_NOTIFY_COUNT_INIT 250 |
| |
| /* |
| * Used to mark which completion handles (for RIO Status's) are for CTIO's |
| * vs. regular (non-target) info. This is checked for in |
| * qla2x00_process_response_queue() to see if a handle coming back in a |
| * multi-complete should come to the tgt driver or be handled there by qla2xxx |
| */ |
| #define CTIO_COMPLETION_HANDLE_MARK BIT_29 |
| #if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS) |
| #error "CTIO_COMPLETION_HANDLE_MARK not larger than " |
| "DEFAULT_OUTSTANDING_COMMANDS" |
| #endif |
| #define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK) |
| |
| /* Used to mark CTIO as intermediate */ |
| #define CTIO_INTERMEDIATE_HANDLE_MARK BIT_30 |
| #define QLA_TGT_NULL_HANDLE 0 |
| |
| #define QLA_TGT_HANDLE_MASK 0xF0000000 |
| #define QLA_QPID_HANDLE_MASK 0x00FF0000 /* qpair id mask */ |
| #define QLA_CMD_HANDLE_MASK 0x0000FFFF |
| #define QLA_TGT_SKIP_HANDLE (0xFFFFFFFF & ~QLA_TGT_HANDLE_MASK) |
| |
| #define QLA_QPID_HANDLE_SHIFT 16 |
| #define GET_QID(_h) ((_h & QLA_QPID_HANDLE_MASK) >> QLA_QPID_HANDLE_SHIFT) |
| |
| |
| #ifndef OF_SS_MODE_0 |
| /* |
| * ISP target entries - Flags bit definitions. |
| */ |
| #define OF_SS_MODE_0 0 |
| #define OF_SS_MODE_1 1 |
| #define OF_SS_MODE_2 2 |
| #define OF_SS_MODE_3 3 |
| |
| #define OF_EXPL_CONF BIT_5 /* Explicit Confirmation Requested */ |
| #define OF_DATA_IN BIT_6 /* Data in to initiator */ |
| /* (data from target to initiator) */ |
| #define OF_DATA_OUT BIT_7 /* Data out from initiator */ |
| /* (data from initiator to target) */ |
| #define OF_NO_DATA (BIT_7 | BIT_6) |
| #define OF_INC_RC BIT_8 /* Increment command resource count */ |
| #define OF_FAST_POST BIT_9 /* Enable mailbox fast posting. */ |
| #define OF_CONF_REQ BIT_13 /* Confirmation Requested */ |
| #define OF_TERM_EXCH BIT_14 /* Terminate exchange */ |
| #define OF_SSTS BIT_15 /* Send SCSI status */ |
| #endif |
| |
| #ifndef QLA_TGT_DATASEGS_PER_CMD32 |
| #define QLA_TGT_DATASEGS_PER_CMD32 3 |
| #define QLA_TGT_DATASEGS_PER_CONT32 7 |
| #define QLA_TGT_MAX_SG32(ql) \ |
| (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD32 + \ |
| QLA_TGT_DATASEGS_PER_CONT32*((ql) - 1)) : 0) |
| |
| #define QLA_TGT_DATASEGS_PER_CMD64 2 |
| #define QLA_TGT_DATASEGS_PER_CONT64 5 |
| #define QLA_TGT_MAX_SG64(ql) \ |
| (((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD64 + \ |
| QLA_TGT_DATASEGS_PER_CONT64*((ql) - 1)) : 0) |
| #endif |
| |
| #ifndef QLA_TGT_DATASEGS_PER_CMD_24XX |
| #define QLA_TGT_DATASEGS_PER_CMD_24XX 1 |
| #define QLA_TGT_DATASEGS_PER_CONT_24XX 5 |
| #define QLA_TGT_MAX_SG_24XX(ql) \ |
| (min(1270, ((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD_24XX + \ |
| QLA_TGT_DATASEGS_PER_CONT_24XX*((ql) - 1)) : 0)) |
| #endif |
| #endif |
| |
| #define GET_TARGET_ID(ha, iocb) ((HAS_EXTENDED_IDS(ha)) \ |
| ? le16_to_cpu((iocb)->u.isp2x.target.extended) \ |
| : (uint16_t)(iocb)->u.isp2x.target.id.standard) |
| |
| #ifndef NOTIFY_ACK_TYPE |
| #define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */ |
| /* |
| * ISP queue - notify acknowledge entry structure definition. |
| * This is sent to the ISP from the target driver. |
| */ |
| struct nack_to_isp { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| union { |
| struct { |
| uint32_t sys_define_2; /* System defined. */ |
| target_id_t target; |
| uint8_t target_id; |
| uint8_t reserved_1; |
| uint16_t flags; |
| uint16_t resp_code; |
| uint16_t status; |
| uint16_t task_flags; |
| uint16_t seq_id; |
| uint16_t srr_rx_id; |
| uint32_t srr_rel_offs; |
| uint16_t srr_ui; |
| uint16_t srr_flags; |
| uint16_t srr_reject_code; |
| uint8_t srr_reject_vendor_uniq; |
| uint8_t srr_reject_code_expl; |
| uint8_t reserved_2[24]; |
| } isp2x; |
| struct { |
| uint32_t handle; |
| uint16_t nport_handle; |
| uint16_t reserved_1; |
| uint16_t flags; |
| uint16_t srr_rx_id; |
| uint16_t status; |
| uint8_t status_subcode; |
| uint8_t fw_handle; |
| uint32_t exchange_address; |
| uint32_t srr_rel_offs; |
| uint16_t srr_ui; |
| uint16_t srr_flags; |
| uint8_t reserved_4[19]; |
| uint8_t vp_index; |
| uint8_t srr_reject_vendor_uniq; |
| uint8_t srr_reject_code_expl; |
| uint8_t srr_reject_code; |
| uint8_t reserved_5[5]; |
| } isp24; |
| } u; |
| uint8_t reserved[2]; |
| uint16_t ox_id; |
| } __packed; |
| #define NOTIFY_ACK_FLAGS_TERMINATE BIT_3 |
| #define NOTIFY_ACK_SRR_FLAGS_ACCEPT 0 |
| #define NOTIFY_ACK_SRR_FLAGS_REJECT 1 |
| |
| #define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM 0x9 |
| |
| #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL 0 |
| #define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA 0x2a |
| |
| #define NOTIFY_ACK_SUCCESS 0x01 |
| #endif |
| |
| #ifndef ACCEPT_TGT_IO_TYPE |
| #define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */ |
| #endif |
| |
| #ifndef CONTINUE_TGT_IO_TYPE |
| #define CONTINUE_TGT_IO_TYPE 0x17 |
| /* |
| * ISP queue - Continue Target I/O (CTIO) entry for status mode 0 structure. |
| * This structure is sent to the ISP 2xxx from target driver. |
| */ |
| struct ctio_to_2xxx { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| uint32_t handle; /* System defined handle */ |
| target_id_t target; |
| uint16_t rx_id; |
| uint16_t flags; |
| uint16_t status; |
| uint16_t timeout; /* 0 = 30 seconds, 0xFFFF = disable */ |
| uint16_t dseg_count; /* Data segment count. */ |
| uint32_t relative_offset; |
| uint32_t residual; |
| uint16_t reserved_1[3]; |
| uint16_t scsi_status; |
| uint32_t transfer_length; |
| struct dsd32 dsd[3]; |
| } __packed; |
| #define ATIO_PATH_INVALID 0x07 |
| #define ATIO_CANT_PROV_CAP 0x16 |
| #define ATIO_CDB_VALID 0x3D |
| |
| #define ATIO_EXEC_READ BIT_1 |
| #define ATIO_EXEC_WRITE BIT_0 |
| #endif |
| |
| #ifndef CTIO_A64_TYPE |
| #define CTIO_A64_TYPE 0x1F |
| #define CTIO_SUCCESS 0x01 |
| #define CTIO_ABORTED 0x02 |
| #define CTIO_INVALID_RX_ID 0x08 |
| #define CTIO_TIMEOUT 0x0B |
| #define CTIO_DIF_ERROR 0x0C /* DIF error detected */ |
| #define CTIO_LIP_RESET 0x0E |
| #define CTIO_TARGET_RESET 0x17 |
| #define CTIO_PORT_UNAVAILABLE 0x28 |
| #define CTIO_PORT_LOGGED_OUT 0x29 |
| #define CTIO_PORT_CONF_CHANGED 0x2A |
| #define CTIO_SRR_RECEIVED 0x45 |
| #endif |
| |
| #ifndef CTIO_RET_TYPE |
| #define CTIO_RET_TYPE 0x17 /* CTIO return entry */ |
| #define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */ |
| |
| struct fcp_hdr { |
| uint8_t r_ctl; |
| be_id_t d_id; |
| uint8_t cs_ctl; |
| be_id_t s_id; |
| uint8_t type; |
| uint8_t f_ctl[3]; |
| uint8_t seq_id; |
| uint8_t df_ctl; |
| uint16_t seq_cnt; |
| __be16 ox_id; |
| uint16_t rx_id; |
| uint32_t parameter; |
| } __packed; |
| |
| struct fcp_hdr_le { |
| le_id_t d_id; |
| uint8_t r_ctl; |
| le_id_t s_id; |
| uint8_t cs_ctl; |
| uint8_t f_ctl[3]; |
| uint8_t type; |
| uint16_t seq_cnt; |
| uint8_t df_ctl; |
| uint8_t seq_id; |
| uint16_t rx_id; |
| uint16_t ox_id; |
| uint32_t parameter; |
| } __packed; |
| |
| #define F_CTL_EXCH_CONTEXT_RESP BIT_23 |
| #define F_CTL_SEQ_CONTEXT_RESIP BIT_22 |
| #define F_CTL_LAST_SEQ BIT_20 |
| #define F_CTL_END_SEQ BIT_19 |
| #define F_CTL_SEQ_INITIATIVE BIT_16 |
| |
| #define R_CTL_BASIC_LINK_SERV 0x80 |
| #define R_CTL_B_ACC 0x4 |
| #define R_CTL_B_RJT 0x5 |
| |
| struct atio7_fcp_cmnd { |
| uint64_t lun; |
| uint8_t cmnd_ref; |
| uint8_t task_attr:3; |
| uint8_t reserved:5; |
| uint8_t task_mgmt_flags; |
| #define FCP_CMND_TASK_MGMT_CLEAR_ACA 6 |
| #define FCP_CMND_TASK_MGMT_TARGET_RESET 5 |
| #define FCP_CMND_TASK_MGMT_LU_RESET 4 |
| #define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET 2 |
| #define FCP_CMND_TASK_MGMT_ABORT_TASK_SET 1 |
| uint8_t wrdata:1; |
| uint8_t rddata:1; |
| uint8_t add_cdb_len:6; |
| uint8_t cdb[16]; |
| /* |
| * add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4 |
| * only to make sizeof(struct atio7_fcp_cmnd) be as expected by |
| * BUILD_BUG_ON in qlt_init(). |
| */ |
| uint8_t add_cdb[4]; |
| /* uint32_t data_length; */ |
| } __packed; |
| |
| /* |
| * ISP queue - Accept Target I/O (ATIO) type entry IOCB structure. |
| * This is sent from the ISP to the target driver. |
| */ |
| struct atio_from_isp { |
| union { |
| struct { |
| uint16_t entry_hdr; |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| uint32_t sys_define_2; /* System defined. */ |
| target_id_t target; |
| uint16_t rx_id; |
| uint16_t flags; |
| uint16_t status; |
| uint8_t command_ref; |
| uint8_t task_codes; |
| uint8_t task_flags; |
| uint8_t execution_codes; |
| uint8_t cdb[MAX_CMDSZ]; |
| uint32_t data_length; |
| uint16_t lun; |
| uint8_t initiator_port_name[WWN_SIZE]; /* on qla23xx */ |
| uint16_t reserved_32[6]; |
| uint16_t ox_id; |
| } isp2x; |
| struct { |
| uint16_t entry_hdr; |
| uint8_t fcp_cmnd_len_low; |
| uint8_t fcp_cmnd_len_high:4; |
| uint8_t attr:4; |
| uint32_t exchange_addr; |
| #define ATIO_EXCHANGE_ADDRESS_UNKNOWN 0xFFFFFFFF |
| struct fcp_hdr fcp_hdr; |
| struct atio7_fcp_cmnd fcp_cmnd; |
| } isp24; |
| struct { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| __le16 attr_n_length; |
| #define FCP_CMD_LENGTH_MASK 0x0fff |
| #define FCP_CMD_LENGTH_MIN 0x38 |
| uint8_t data[56]; |
| uint32_t signature; |
| #define ATIO_PROCESSED 0xDEADDEAD /* Signature */ |
| } raw; |
| } u; |
| } __packed; |
| |
| static inline int fcpcmd_is_corrupted(struct atio *atio) |
| { |
| if (atio->entry_type == ATIO_TYPE7 && |
| ((le16_to_cpu(atio->attr_n_length) & FCP_CMD_LENGTH_MASK) < |
| FCP_CMD_LENGTH_MIN)) |
| return 1; |
| else |
| return 0; |
| } |
| |
| /* adjust corrupted atio so we won't trip over the same entry again. */ |
| static inline void adjust_corrupted_atio(struct atio_from_isp *atio) |
| { |
| atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN); |
| atio->u.isp24.fcp_cmnd.add_cdb_len = 0; |
| } |
| |
| static inline int get_datalen_for_atio(struct atio_from_isp *atio) |
| { |
| int len = atio->u.isp24.fcp_cmnd.add_cdb_len; |
| |
| return (be32_to_cpu(get_unaligned((uint32_t *) |
| &atio->u.isp24.fcp_cmnd.add_cdb[len * 4]))); |
| } |
| |
| #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */ |
| |
| /* |
| * ISP queue - Continue Target I/O (ATIO) type 7 entry (for 24xx) structure. |
| * This structure is sent to the ISP 24xx from the target driver. |
| */ |
| |
| struct ctio7_to_24xx { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| uint32_t handle; /* System defined handle */ |
| uint16_t nport_handle; |
| #define CTIO7_NHANDLE_UNRECOGNIZED 0xFFFF |
| uint16_t timeout; |
| uint16_t dseg_count; /* Data segment count. */ |
| uint8_t vp_index; |
| uint8_t add_flags; |
| le_id_t initiator_id; |
| uint8_t reserved; |
| uint32_t exchange_addr; |
| union { |
| struct { |
| uint16_t reserved1; |
| __le16 flags; |
| uint32_t residual; |
| __le16 ox_id; |
| uint16_t scsi_status; |
| uint32_t relative_offset; |
| uint32_t reserved2; |
| uint32_t transfer_length; |
| uint32_t reserved3; |
| struct dsd64 dsd; |
| } status0; |
| struct { |
| uint16_t sense_length; |
| __le16 flags; |
| uint32_t residual; |
| __le16 ox_id; |
| uint16_t scsi_status; |
| uint16_t response_len; |
| uint16_t reserved; |
| uint8_t sense_data[24]; |
| } status1; |
| } u; |
| } __packed; |
| |
| /* |
| * ISP queue - CTIO type 7 from ISP 24xx to target driver |
| * returned entry structure. |
| */ |
| struct ctio7_from_24xx { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| uint32_t handle; /* System defined handle */ |
| uint16_t status; |
| uint16_t timeout; |
| uint16_t dseg_count; /* Data segment count. */ |
| uint8_t vp_index; |
| uint8_t reserved1[5]; |
| uint32_t exchange_address; |
| uint16_t reserved2; |
| uint16_t flags; |
| uint32_t residual; |
| uint16_t ox_id; |
| uint16_t reserved3; |
| uint32_t relative_offset; |
| uint8_t reserved4[24]; |
| } __packed; |
| |
| /* CTIO7 flags values */ |
| #define CTIO7_FLAGS_SEND_STATUS BIT_15 |
| #define CTIO7_FLAGS_TERMINATE BIT_14 |
| #define CTIO7_FLAGS_CONFORM_REQ BIT_13 |
| #define CTIO7_FLAGS_DONT_RET_CTIO BIT_8 |
| #define CTIO7_FLAGS_STATUS_MODE_0 0 |
| #define CTIO7_FLAGS_STATUS_MODE_1 BIT_6 |
| #define CTIO7_FLAGS_STATUS_MODE_2 BIT_7 |
| #define CTIO7_FLAGS_EXPLICIT_CONFORM BIT_5 |
| #define CTIO7_FLAGS_CONFIRM_SATISF BIT_4 |
| #define CTIO7_FLAGS_DSD_PTR BIT_2 |
| #define CTIO7_FLAGS_DATA_IN BIT_1 /* data to initiator */ |
| #define CTIO7_FLAGS_DATA_OUT BIT_0 /* data from initiator */ |
| |
| #define ELS_PLOGI 0x3 |
| #define ELS_FLOGI 0x4 |
| #define ELS_LOGO 0x5 |
| #define ELS_PRLI 0x20 |
| #define ELS_PRLO 0x21 |
| #define ELS_TPRLO 0x24 |
| #define ELS_PDISC 0x50 |
| #define ELS_ADISC 0x52 |
| |
| /* |
| *CTIO Type CRC_2 IOCB |
| */ |
| struct ctio_crc2_to_fw { |
| uint8_t entry_type; /* Entry type. */ |
| #define CTIO_CRC2 0x7A |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| |
| uint32_t handle; /* System handle. */ |
| uint16_t nport_handle; /* N_PORT handle. */ |
| __le16 timeout; /* Command timeout. */ |
| |
| uint16_t dseg_count; /* Data segment count. */ |
| uint8_t vp_index; |
| uint8_t add_flags; /* additional flags */ |
| #define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3 |
| |
| le_id_t initiator_id; /* initiator ID */ |
| uint8_t reserved1; |
| uint32_t exchange_addr; /* rcv exchange address */ |
| uint16_t reserved2; |
| __le16 flags; /* refer to CTIO7 flags values */ |
| uint32_t residual; |
| __le16 ox_id; |
| uint16_t scsi_status; |
| __le32 relative_offset; |
| uint32_t reserved5; |
| __le32 transfer_length; /* total fc transfer length */ |
| uint32_t reserved6; |
| __le64 crc_context_address __packed; /* Data segment address. */ |
| uint16_t crc_context_len; /* Data segment length. */ |
| uint16_t reserved_1; /* MUST be set to 0. */ |
| }; |
| |
| /* CTIO Type CRC_x Status IOCB */ |
| struct ctio_crc_from_fw { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| |
| uint32_t handle; /* System handle. */ |
| uint16_t status; |
| uint16_t timeout; /* Command timeout. */ |
| uint16_t dseg_count; /* Data segment count. */ |
| uint32_t reserved1; |
| uint16_t state_flags; |
| #define CTIO_CRC_SF_DIF_CHOPPED BIT_4 |
| |
| uint32_t exchange_address; /* rcv exchange address */ |
| uint16_t reserved2; |
| uint16_t flags; |
| uint32_t resid_xfer_length; |
| uint16_t ox_id; |
| uint8_t reserved3[12]; |
| uint16_t runt_guard; /* reported runt blk guard */ |
| uint8_t actual_dif[8]; |
| uint8_t expected_dif[8]; |
| } __packed; |
| |
| /* |
| * ISP queue - ABTS received/response entries structure definition for 24xx. |
| */ |
| #define ABTS_RECV_24XX 0x54 /* ABTS received (for 24xx) */ |
| #define ABTS_RESP_24XX 0x55 /* ABTS responce (for 24xx) */ |
| |
| /* |
| * ISP queue - ABTS received IOCB entry structure definition for 24xx. |
| * The ABTS BLS received from the wire is sent to the |
| * target driver by the ISP 24xx. |
| * The IOCB is placed on the response queue. |
| */ |
| struct abts_recv_from_24xx { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| uint8_t reserved_1[6]; |
| uint16_t nport_handle; |
| uint8_t reserved_2[2]; |
| uint8_t vp_index; |
| uint8_t reserved_3:4; |
| uint8_t sof_type:4; |
| uint32_t exchange_address; |
| struct fcp_hdr_le fcp_hdr_le; |
| uint8_t reserved_4[16]; |
| uint32_t exchange_addr_to_abort; |
| } __packed; |
| |
| #define ABTS_PARAM_ABORT_SEQ BIT_0 |
| |
| struct ba_acc_le { |
| uint16_t reserved; |
| uint8_t seq_id_last; |
| uint8_t seq_id_valid; |
| #define SEQ_ID_VALID 0x80 |
| #define SEQ_ID_INVALID 0x00 |
| uint16_t rx_id; |
| uint16_t ox_id; |
| uint16_t high_seq_cnt; |
| uint16_t low_seq_cnt; |
| } __packed; |
| |
| struct ba_rjt_le { |
| uint8_t vendor_uniq; |
| uint8_t reason_expl; |
| uint8_t reason_code; |
| #define BA_RJT_REASON_CODE_INVALID_COMMAND 0x1 |
| #define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM 0x9 |
| uint8_t reserved; |
| } __packed; |
| |
| /* |
| * ISP queue - ABTS Response IOCB entry structure definition for 24xx. |
| * The ABTS response to the ABTS received is sent by the |
| * target driver to the ISP 24xx. |
| * The IOCB is placed on the request queue. |
| */ |
| struct abts_resp_to_24xx { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| uint32_t handle; |
| uint16_t reserved_1; |
| uint16_t nport_handle; |
| uint16_t control_flags; |
| #define ABTS_CONTR_FLG_TERM_EXCHG BIT_0 |
| uint8_t vp_index; |
| uint8_t reserved_3:4; |
| uint8_t sof_type:4; |
| uint32_t exchange_address; |
| struct fcp_hdr_le fcp_hdr_le; |
| union { |
| struct ba_acc_le ba_acct; |
| struct ba_rjt_le ba_rjt; |
| } __packed payload; |
| uint32_t reserved_4; |
| uint32_t exchange_addr_to_abort; |
| } __packed; |
| |
| /* |
| * ISP queue - ABTS Response IOCB from ISP24xx Firmware entry structure. |
| * The ABTS response with completion status to the ABTS response |
| * (sent by the target driver to the ISP 24xx) is sent by the |
| * ISP24xx firmware to the target driver. |
| * The IOCB is placed on the response queue. |
| */ |
| struct abts_resp_from_24xx_fw { |
| uint8_t entry_type; /* Entry type. */ |
| uint8_t entry_count; /* Entry count. */ |
| uint8_t sys_define; /* System defined. */ |
| uint8_t entry_status; /* Entry Status. */ |
| uint32_t handle; |
| uint16_t compl_status; |
| #define ABTS_RESP_COMPL_SUCCESS 0 |
| #define ABTS_RESP_COMPL_SUBCODE_ERROR 0x31 |
| uint16_t nport_handle; |
| uint16_t reserved_1; |
| uint8_t reserved_2; |
| uint8_t reserved_3:4; |
| uint8_t sof_type:4; |
| uint32_t exchange_address; |
| struct fcp_hdr_le fcp_hdr_le; |
| uint8_t reserved_4[8]; |
| uint32_t error_subcode1; |
| #define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM 0x1E |
| uint32_t error_subcode2; |
| uint32_t exchange_addr_to_abort; |
| } __packed; |
| |
| /********************************************************************\ |
| * Type Definitions used by initiator & target halves |
| \********************************************************************/ |
| |
| struct qla_tgt_mgmt_cmd; |
| struct fc_port; |
| struct qla_tgt_cmd; |
| |
| /* |
| * This structure provides a template of function calls that the |
| * target driver (from within qla_target.c) can issue to the |
| * target module (tcm_qla2xxx). |
| */ |
| struct qla_tgt_func_tmpl { |
| struct qla_tgt_cmd *(*find_cmd_by_tag)(struct fc_port *, uint64_t); |
| int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *, |
| unsigned char *, uint32_t, int, int, int); |
| void (*handle_data)(struct qla_tgt_cmd *); |
| int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, u64, uint16_t, |
| uint32_t); |
| void (*free_cmd)(struct qla_tgt_cmd *); |
| void (*free_mcmd)(struct qla_tgt_mgmt_cmd *); |
| void (*free_session)(struct fc_port *); |
| |
| int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *, |
| struct fc_port *); |
| void (*update_sess)(struct fc_port *, port_id_t, uint16_t, bool); |
| struct fc_port *(*find_sess_by_loop_id)(struct scsi_qla_host *, |
| const uint16_t); |
| struct fc_port *(*find_sess_by_s_id)(struct scsi_qla_host *, |
| const be_id_t); |
| void (*clear_nacl_from_fcport_map)(struct fc_port *); |
| void (*put_sess)(struct fc_port *); |
| void (*shutdown_sess)(struct fc_port *); |
| int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts); |
| int (*chk_dif_tags)(uint32_t tag); |
| void (*add_target)(struct scsi_qla_host *); |
| void (*remove_target)(struct scsi_qla_host *); |
| }; |
| |
| int qla2x00_wait_for_hba_online(struct scsi_qla_host *); |
| |
| #include <target/target_core_base.h> |
| |
| #define QLA_TGT_TIMEOUT 10 /* in seconds */ |
| |
| #define QLA_TGT_MAX_HW_PENDING_TIME 60 /* in seconds */ |
| |
| /* Immediate notify status constants */ |
| #define IMM_NTFY_LIP_RESET 0x000E |
| #define IMM_NTFY_LIP_LINK_REINIT 0x000F |
| #define IMM_NTFY_IOCB_OVERFLOW 0x0016 |
| #define IMM_NTFY_ABORT_TASK 0x0020 |
| #define IMM_NTFY_PORT_LOGOUT 0x0029 |
| #define IMM_NTFY_PORT_CONFIG 0x002A |
| #define IMM_NTFY_GLBL_TPRLO 0x002D |
| #define IMM_NTFY_GLBL_LOGO 0x002E |
| #define IMM_NTFY_RESOURCE 0x0034 |
| #define IMM_NTFY_MSG_RX 0x0036 |
| #define IMM_NTFY_SRR 0x0045 |
| #define IMM_NTFY_ELS 0x0046 |
| |
| /* Immediate notify task flags */ |
| #define IMM_NTFY_TASK_MGMT_SHIFT 8 |
| |
| #define QLA_TGT_CLEAR_ACA 0x40 |
| #define QLA_TGT_TARGET_RESET 0x20 |
| #define QLA_TGT_LUN_RESET 0x10 |
| #define QLA_TGT_CLEAR_TS 0x04 |
| #define QLA_TGT_ABORT_TS 0x02 |
| #define QLA_TGT_ABORT_ALL_SESS 0xFFFF |
| #define QLA_TGT_ABORT_ALL 0xFFFE |
| #define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD |
| #define QLA_TGT_NEXUS_LOSS 0xFFFC |
| #define QLA_TGT_ABTS 0xFFFB |
| #define QLA_TGT_2G_ABORT_TASK 0xFFFA |
| |
| /* Notify Acknowledge flags */ |
| #define NOTIFY_ACK_RES_COUNT BIT_8 |
| #define NOTIFY_ACK_CLEAR_LIP_RESET BIT_5 |
| #define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4 |
| |
| /* Command's states */ |
| #define QLA_TGT_STATE_NEW 0 /* New command + target processing */ |
| #define QLA_TGT_STATE_NEED_DATA 1 /* target needs data to continue */ |
| #define QLA_TGT_STATE_DATA_IN 2 /* Data arrived + target processing */ |
| #define QLA_TGT_STATE_PROCESSED 3 /* target done processing */ |
| |
| /* ATIO task_codes field */ |
| #define ATIO_SIMPLE_QUEUE 0 |
| #define ATIO_HEAD_OF_QUEUE 1 |
| #define ATIO_ORDERED_QUEUE 2 |
| #define ATIO_ACA_QUEUE 4 |
| #define ATIO_UNTAGGED 5 |
| |
| /* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */ |
| #define FC_TM_SUCCESS 0 |
| #define FC_TM_BAD_FCP_DATA 1 |
| #define FC_TM_BAD_CMD 2 |
| #define FC_TM_FCP_DATA_MISMATCH 3 |
| #define FC_TM_REJECT 4 |
| #define FC_TM_FAILED 5 |
| |
| #define QLA_TGT_SENSE_VALID(sense) ((sense != NULL) && \ |
| (((const uint8_t *)(sense))[0] & 0x70) == 0x70) |
| |
| struct qla_port_24xx_data { |
| uint8_t port_name[WWN_SIZE]; |
| uint16_t loop_id; |
| uint16_t reserved; |
| }; |
| |
| struct qla_qpair_hint { |
| struct list_head hint_elem; |
| struct qla_qpair *qpair; |
| u16 cpuid; |
| uint8_t cmd_cnt; |
| }; |
| |
| struct qla_tgt { |
| struct scsi_qla_host *vha; |
| struct qla_hw_data *ha; |
| struct btree_head64 lun_qpair_map; |
| struct qla_qpair_hint *qphints; |
| /* |
| * To sync between IRQ handlers and qlt_target_release(). Needed, |
| * because req_pkt() can drop/reaquire HW lock inside. Protected by |
| * HW lock. |
| */ |
| int atio_irq_cmd_count; |
| |
| int sg_tablesize; |
| |
| /* Target's flags, serialized by pha->hardware_lock */ |
| unsigned int link_reinit_iocb_pending:1; |
| |
| /* |
| * Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex |
| * OR hardware_lock for reading. |
| */ |
| int tgt_stop; /* the target mode driver is being stopped */ |
| int tgt_stopped; /* the target mode driver has been stopped */ |
| |
| /* Count of sessions refering qla_tgt. Protected by hardware_lock. */ |
| int sess_count; |
| |
| /* Protected by hardware_lock */ |
| struct list_head del_sess_list; |
| |
| spinlock_t sess_work_lock; |
| struct list_head sess_works_list; |
| struct work_struct sess_work; |
| |
| struct imm_ntfy_from_isp link_reinit_iocb; |
| wait_queue_head_t waitQ; |
| int notify_ack_expected; |
| int abts_resp_expected; |
| int modify_lun_expected; |
| atomic_t tgt_global_resets_count; |
| struct list_head tgt_list_entry; |
| }; |
| |
| struct qla_tgt_sess_op { |
| struct scsi_qla_host *vha; |
| uint32_t chip_reset; |
| struct atio_from_isp atio; |
| struct work_struct work; |
| struct list_head cmd_list; |
| bool aborted; |
| struct rsp_que *rsp; |
| }; |
| |
| enum trace_flags { |
| TRC_NEW_CMD = BIT_0, |
| TRC_DO_WORK = BIT_1, |
| TRC_DO_WORK_ERR = BIT_2, |
| TRC_XFR_RDY = BIT_3, |
| TRC_XMIT_DATA = BIT_4, |
| TRC_XMIT_STATUS = BIT_5, |
| TRC_SRR_RSP = BIT_6, |
| TRC_SRR_XRDY = BIT_7, |
| TRC_SRR_TERM = BIT_8, |
| TRC_SRR_CTIO = BIT_9, |
| TRC_FLUSH = BIT_10, |
| TRC_CTIO_ERR = BIT_11, |
| TRC_CTIO_DONE = BIT_12, |
| TRC_CTIO_ABORTED = BIT_13, |
| TRC_CTIO_STRANGE = BIT_14, |
| TRC_CMD_DONE = BIT_15, |
| TRC_CMD_CHK_STOP = BIT_16, |
| TRC_CMD_FREE = BIT_17, |
| TRC_DATA_IN = BIT_18, |
| TRC_ABORT = BIT_19, |
| TRC_DIF_ERR = BIT_20, |
| }; |
| |
| struct qla_tgt_cmd { |
| /* |
| * Do not move cmd_type field. it needs to line up with srb->cmd_type |
| */ |
| uint8_t cmd_type; |
| uint8_t pad[7]; |
| struct se_cmd se_cmd; |
| struct fc_port *sess; |
| struct qla_qpair *qpair; |
| uint32_t reset_count; |
| int state; |
| struct work_struct work; |
| /* Sense buffer that will be mapped into outgoing status */ |
| unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER]; |
| |
| spinlock_t cmd_lock; |
| /* to save extra sess dereferences */ |
| unsigned int conf_compl_supported:1; |
| unsigned int sg_mapped:1; |
| unsigned int free_sg:1; |
| unsigned int write_data_transferred:1; |
| unsigned int q_full:1; |
| unsigned int term_exchg:1; |
| unsigned int cmd_sent_to_fw:1; |
| unsigned int cmd_in_wq:1; |
| |
| /* |
| * This variable may be set from outside the LIO and I/O completion |
| * callback functions. Do not declare this member variable as a |
| * bitfield to avoid a read-modify-write operation when this variable |
| * is set. |
| */ |
| unsigned int aborted; |
| |
| struct scatterlist *sg; /* cmd data buffer SG vector */ |
| int sg_cnt; /* SG segments count */ |
| int bufflen; /* cmd buffer length */ |
| int offset; |
| u64 unpacked_lun; |
| enum dma_data_direction dma_data_direction; |
| |
| uint16_t ctio_flags; |
| uint16_t vp_idx; |
| uint16_t loop_id; /* to save extra sess dereferences */ |
| struct qla_tgt *tgt; /* to save extra sess dereferences */ |
| struct scsi_qla_host *vha; |
| struct list_head cmd_list; |
| |
| struct atio_from_isp atio; |
| |
| uint8_t ctx_dsd_alloced; |
| |
| /* T10-DIF */ |
| #define DIF_ERR_NONE 0 |
| #define DIF_ERR_GRD 1 |
| #define DIF_ERR_REF 2 |
| #define DIF_ERR_APP 3 |
| int8_t dif_err_code; |
| struct scatterlist *prot_sg; |
| uint32_t prot_sg_cnt; |
| uint32_t blk_sz, num_blks; |
| uint8_t scsi_status, sense_key, asc, ascq; |
| |
| struct crc_context *ctx; |
| const uint8_t *cdb; |
| uint64_t lba; |
| uint16_t a_guard, e_guard, a_app_tag, e_app_tag; |
| uint32_t a_ref_tag, e_ref_tag; |
| #define DIF_BUNDL_DMA_VALID 1 |
| uint16_t prot_flags; |
| |
| uint64_t jiffies_at_alloc; |
| uint64_t jiffies_at_free; |
| |
| enum trace_flags trc_flags; |
| }; |
| |
| struct qla_tgt_sess_work_param { |
| struct list_head sess_works_list_entry; |
| |
| #define QLA_TGT_SESS_WORK_ABORT 1 |
| #define QLA_TGT_SESS_WORK_TM 2 |
| int type; |
| |
| union { |
| struct abts_recv_from_24xx abts; |
| struct imm_ntfy_from_isp tm_iocb; |
| struct atio_from_isp tm_iocb2; |
| }; |
| }; |
| |
| struct qla_tgt_mgmt_cmd { |
| uint8_t cmd_type; |
| uint8_t pad[3]; |
| uint16_t tmr_func; |
| uint8_t fc_tm_rsp; |
| uint8_t abort_io_attr; |
| struct fc_port *sess; |
| struct qla_qpair *qpair; |
| struct scsi_qla_host *vha; |
| struct se_cmd se_cmd; |
| struct work_struct free_work; |
| unsigned int flags; |
| #define QLA24XX_MGMT_SEND_NACK BIT_0 |
| #define QLA24XX_MGMT_ABORT_IO_ATTR_VALID BIT_1 |
| uint32_t reset_count; |
| struct work_struct work; |
| uint64_t unpacked_lun; |
| union { |
| struct atio_from_isp atio; |
| struct imm_ntfy_from_isp imm_ntfy; |
| struct abts_recv_from_24xx abts; |
| } __packed orig_iocb; |
| }; |
| |
| struct qla_tgt_prm { |
| struct qla_tgt_cmd *cmd; |
| struct qla_tgt *tgt; |
| void *pkt; |
| struct scatterlist *sg; /* cmd data buffer SG vector */ |
| unsigned char *sense_buffer; |
| int seg_cnt; |
| int req_cnt; |
| uint16_t rq_result; |
| int sense_buffer_len; |
| int residual; |
| int add_status_pkt; |
| /* dif */ |
| struct scatterlist *prot_sg; |
| uint16_t prot_seg_cnt; |
| uint16_t tot_dsds; |
| }; |
| |
| /* Check for Switch reserved address */ |
| #define IS_SW_RESV_ADDR(_s_id) \ |
| ((_s_id.b.domain == 0xff) && ((_s_id.b.area & 0xf0) == 0xf0)) |
| |
| #define QLA_TGT_XMIT_DATA 1 |
| #define QLA_TGT_XMIT_STATUS 2 |
| #define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA) |
| |
| |
| extern struct qla_tgt_data qla_target; |
| |
| /* |
| * Function prototypes for qla_target.c logic used by qla2xxx LLD code. |
| */ |
| extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *); |
| extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *); |
| extern int qlt_lport_register(void *, u64, u64, u64, |
| int (*callback)(struct scsi_qla_host *, void *, u64, u64)); |
| extern void qlt_lport_deregister(struct scsi_qla_host *); |
| extern void qlt_unreg_sess(struct fc_port *); |
| extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *); |
| extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int); |
| extern int __init qlt_init(void); |
| extern void qlt_exit(void); |
| extern void qlt_update_vp_map(struct scsi_qla_host *, int); |
| extern void qlt_free_session_done(struct work_struct *); |
| /* |
| * This macro is used during early initializations when host->active_mode |
| * is not set. Right now, ha value is ignored. |
| */ |
| #define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED) |
| |
| extern int ql2x_ini_mode; |
| |
| static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha) |
| { |
| return ha->host->active_mode == MODE_TARGET; |
| } |
| |
| static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha) |
| { |
| return ha->host->active_mode == MODE_INITIATOR; |
| } |
| |
| static inline bool qla_dual_mode_enabled(struct scsi_qla_host *ha) |
| { |
| return (ha->host->active_mode == MODE_DUAL); |
| } |
| |
| static inline uint32_t sid_to_key(const be_id_t s_id) |
| { |
| return s_id.domain << 16 | |
| s_id.area << 8 | |
| s_id.al_pa; |
| } |
| |
| /* |
| * Exported symbols from qla_target.c LLD logic used by qla2xxx code.. |
| */ |
| extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, struct rsp_que *, |
| response_t *); |
| extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *); |
| extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t); |
| extern int qlt_abort_cmd(struct qla_tgt_cmd *); |
| extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *); |
| extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *); |
| extern void qlt_free_cmd(struct qla_tgt_cmd *cmd); |
| extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *); |
| extern void qlt_enable_vha(struct scsi_qla_host *); |
| extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *); |
| extern u8 qlt_rff_id(struct scsi_qla_host *); |
| extern void qlt_init_atio_q_entries(struct scsi_qla_host *); |
| extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t); |
| extern void qlt_24xx_config_rings(struct scsi_qla_host *); |
| extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *, |
| struct nvram_24xx *); |
| extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *, |
| struct init_cb_24xx *); |
| extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *, |
| struct init_cb_81xx *); |
| extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *, |
| struct nvram_81xx *); |
| extern int qlt_24xx_process_response_error(struct scsi_qla_host *, |
| struct sts_entry_24xx *); |
| extern void qlt_modify_vp_config(struct scsi_qla_host *, |
| struct vp_config_entry_24xx *); |
| extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *); |
| extern int qlt_mem_alloc(struct qla_hw_data *); |
| extern void qlt_mem_free(struct qla_hw_data *); |
| extern int qlt_stop_phase1(struct qla_tgt *); |
| extern void qlt_stop_phase2(struct qla_tgt *); |
| extern irqreturn_t qla83xx_msix_atio_q(int, void *); |
| extern void qlt_83xx_iospace_config(struct qla_hw_data *); |
| extern int qlt_free_qfull_cmds(struct qla_qpair *); |
| extern void qlt_logo_completion_handler(fc_port_t *, int); |
| extern void qlt_do_generation_tick(struct scsi_qla_host *, int *); |
| |
| void qlt_send_resp_ctio(struct qla_qpair *, struct qla_tgt_cmd *, uint8_t, |
| uint8_t, uint8_t, uint8_t); |
| |
| #endif /* __QLA_TARGET_H */ |