/* * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin * Copyright (C) 2004 - 2005 Leonid Stoljar * Copyright (C) 2006 Nathaniel Clark * Copyright (C) 2007 - 2010 ID7 Ltd. * * Forward port and refactoring to modern qla2xxx and target/configfs * * Copyright (C) 2010-2011 Nicholas A. Bellinger * * Additional file for the target driver support. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ /* * 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" /* * 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_EXCLUSIVE 0 #define QLA2XXX_INI_MODE_DISABLED 1 #define QLA2XXX_INI_MODE_ENABLED 2 #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 #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 #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 IMMED_NOTIFY_TYPE #define IMMED_NOTIFY_TYPE 0x0D /* Immediate notify entry. */ /* * ISP queue - immediate notify entry structure definition. * This is sent by the ISP to the Target driver. * This IOCB would have report of events sent by the * initiator, that needs to be handled by the target * driver immediately. */ struct imm_ntfy_from_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; uint16_t lun; uint8_t target_id; uint8_t reserved_1; uint16_t status_modifier; 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; #define SRR_IU_DATA_IN 0x1 #define SRR_IU_DATA_OUT 0x5 #define SRR_IU_STATUS 0x7 uint16_t srr_ox_id; uint8_t reserved_2[28]; } isp2x; struct { uint32_t reserved; uint16_t nport_handle; uint16_t reserved_2; uint16_t flags; #define NOTIFY24XX_FLAGS_GLOBAL_TPRLO BIT_1 #define NOTIFY24XX_FLAGS_PUREX_IOCB BIT_0 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_ox_id; union { struct { uint8_t node_name[8]; } plogi; /* PLOGI/ADISC/PDISC */ struct { /* PRLI word 3 bit 0-15 */ uint16_t wd3_lo; uint8_t resv0[6]; } prli; struct { uint8_t port_id[3]; uint8_t resv1; uint16_t nport_handle; uint16_t resv2; } req_els; } u; uint8_t port_name[8]; uint8_t resv3[3]; uint8_t vp_index; uint32_t reserved_5; uint8_t port_id[3]; uint8_t reserved_6; } isp24; } u; uint16_t reserved_7; uint16_t ox_id; } __packed; #endif #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; uint32_t dseg_0_address; /* Data segment 0 address. */ uint32_t dseg_0_length; /* Data segment 0 length. */ uint32_t dseg_1_address; /* Data segment 1 address. */ uint32_t dseg_1_length; /* Data segment 1 length. */ uint32_t dseg_2_address; /* Data segment 2 address. */ uint32_t dseg_2_length; /* Data segment 2 length. */ } __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 */ #endif struct fcp_hdr { uint8_t r_ctl; uint8_t d_id[3]; uint8_t cs_ctl; uint8_t s_id[3]; 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 { uint8_t d_id[3]; uint8_t r_ctl; uint8_t s_id[3]; 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; } #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; uint8_t initiator_id[3]; 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; /* Data segment 0 address. */ uint32_t dseg_0_address[2]; /* Data segment 0 length. */ uint32_t dseg_0_length; } status0; struct { uint16_t sense_length; uint16_t 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 uint8_t initiator_id[3]; /* 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; __le32 crc_context_address[2];/* Data segment address. */ uint16_t crc_context_len; /* Data segment length. */ uint16_t reserved_1; /* MUST be set to 0. */ } __packed; /* 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 qla_tgt_sess; /* * 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 { 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 *); void (*handle_dif_err)(struct qla_tgt_cmd *); int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, uint32_t, uint8_t, uint32_t); void (*free_cmd)(struct qla_tgt_cmd *); void (*free_mcmd)(struct qla_tgt_mgmt_cmd *); void (*free_session)(struct qla_tgt_sess *); int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *, struct qla_tgt_sess *); void (*update_sess)(struct qla_tgt_sess *, port_id_t, uint16_t, bool); struct qla_tgt_sess *(*find_sess_by_loop_id)(struct scsi_qla_host *, const uint16_t); struct qla_tgt_sess *(*find_sess_by_s_id)(struct scsi_qla_host *, const uint8_t *); void (*clear_nacl_from_fcport_map)(struct qla_tgt_sess *); void (*shutdown_sess)(struct qla_tgt_sess *); }; int qla2x00_wait_for_hba_online(struct scsi_qla_host *); #include #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 /* 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 */ /* Special handles */ #define QLA_TGT_NULL_HANDLE 0 #define QLA_TGT_SKIP_HANDLE (0xFFFFFFFF & ~CTIO_COMPLETION_HANDLE_MARK) /* 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 #if (BITS_PER_LONG > 32) || defined(CONFIG_HIGHMEM64G) #define pci_dma_lo32(a) (a & 0xffffffff) #define pci_dma_hi32(a) ((((a) >> 16)>>16) & 0xffffffff) #else #define pci_dma_lo32(a) (a & 0xffffffff) #define pci_dma_hi32(a) 0 #endif #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_tgt { struct scsi_qla_host *vha; struct qla_hw_data *ha; /* * To sync between IRQ handlers and qlt_target_release(). Needed, * because req_pkt() can drop/reaquire HW lock inside. Protected by * HW lock. */ int irq_cmd_count; int atio_irq_cmd_count; int datasegs_per_cmd, datasegs_per_cont, sg_tablesize; /* Target's flags, serialized by pha->hardware_lock */ unsigned int tgt_enable_64bit_addr:1; /* 64-bits PCI addr enabled */ 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. Addition also protected by tgt_mutex. */ struct list_head sess_list; /* Protected by hardware_lock */ struct list_head del_sess_list; struct delayed_work sess_del_work; 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; int ctio_srr_id; int imm_srr_id; spinlock_t srr_lock; struct list_head srr_ctio_list; struct list_head srr_imm_list; struct work_struct srr_work; 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; }; enum qla_sess_deletion { QLA_SESS_DELETION_NONE = 0, QLA_SESS_DELETION_PENDING = 1, /* hopefully we can get rid of * this one */ QLA_SESS_DELETION_IN_PROGRESS = 2, }; typedef enum { QLT_PLOGI_LINK_SAME_WWN, QLT_PLOGI_LINK_CONFLICT, QLT_PLOGI_LINK_MAX } qlt_plogi_link_t; typedef struct { struct list_head list; struct imm_ntfy_from_isp iocb; port_id_t id; int ref_count; } qlt_plogi_ack_t; /* * Equivilant to IT Nexus (Initiator-Target) */ struct qla_tgt_sess { uint16_t loop_id; port_id_t s_id; unsigned int conf_compl_supported:1; unsigned int deleted:2; unsigned int local:1; unsigned int logout_on_delete:1; unsigned int keep_nport_handle:1; unsigned int send_els_logo:1; unsigned char logout_completed; int generation; struct se_session *se_sess; struct kref sess_kref; struct scsi_qla_host *vha; struct qla_tgt *tgt; struct list_head sess_list_entry; unsigned long expires; struct list_head del_list_entry; uint8_t port_name[WWN_SIZE]; struct work_struct free_work; qlt_plogi_ack_t *plogi_link[QLT_PLOGI_LINK_MAX]; }; typedef enum { /* * BIT_0 - Atio Arrival / schedule to work * BIT_1 - qlt_do_work * BIT_2 - qlt_do work failed * BIT_3 - xfer rdy/tcm_qla2xxx_write_pending * BIT_4 - read respond/tcm_qla2xx_queue_data_in * BIT_5 - status respond / tcm_qla2xx_queue_status * BIT_6 - tcm request to abort/Term exchange. * pre_xmit_response->qlt_send_term_exchange * BIT_7 - SRR received (qlt_handle_srr->qlt_xmit_response) * BIT_8 - SRR received (qlt_handle_srr->qlt_rdy_to_xfer) * BIT_9 - SRR received (qla_handle_srr->qlt_send_term_exchange) * BIT_10 - Data in - hanlde_data->tcm_qla2xxx_handle_data * BIT_12 - good completion - qlt_ctio_do_completion -->free_cmd * BIT_13 - Bad completion - * qlt_ctio_do_completion --> qlt_term_ctio_exchange * BIT_14 - Back end data received/sent. * BIT_15 - SRR prepare ctio * BIT_16 - complete free * BIT_17 - flush - qlt_abort_cmd_on_host_reset * BIT_18 - completion w/abort status * BIT_19 - completion w/unknown status * BIT_20 - tcm_qla2xxx_free_cmd */ CMD_FLAG_DATA_WORK = BIT_11, CMD_FLAG_DATA_WORK_FREE = BIT_21, } cmd_flags_t; struct qla_tgt_cmd { struct se_cmd se_cmd; struct qla_tgt_sess *sess; int state; struct work_struct free_work; 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 ctx_dsd_alloced:1; unsigned int q_full:1; unsigned int term_exchg:1; unsigned int cmd_sent_to_fw:1; unsigned int cmd_in_wq:1; unsigned int aborted:1; struct scatterlist *sg; /* cmd data buffer SG vector */ int sg_cnt; /* SG segments count */ int bufflen; /* cmd buffer length */ int offset; uint32_t unpacked_lun; enum dma_data_direction dma_data_direction; uint32_t reset_count; 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; /* t10dif */ struct scatterlist *prot_sg; uint32_t prot_sg_cnt; uint32_t blk_sz; struct crc_context *ctx; uint64_t jiffies_at_alloc; uint64_t jiffies_at_free; cmd_flags_t cmd_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 tmr_func; uint8_t fc_tm_rsp; struct qla_tgt_sess *sess; struct se_cmd se_cmd; struct work_struct free_work; unsigned int flags; uint32_t reset_count; #define QLA24XX_MGMT_SEND_NACK 1 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; uint16_t scsi_status; int sense_buffer_len; int residual; int add_status_pkt; /* dif */ struct scatterlist *prot_sg; uint16_t prot_seg_cnt; uint16_t tot_dsds; }; struct qla_tgt_srr_imm { struct list_head srr_list_entry; int srr_id; struct imm_ntfy_from_isp imm_ntfy; }; struct qla_tgt_srr_ctio { struct list_head srr_list_entry; int srr_id; struct qla_tgt_cmd *cmd; }; /* Check for Switch reserved address */ #define IS_SW_RESV_ADDR(_s_id) \ ((_s_id.b.domain == 0xff) && (_s_id.b.area == 0xfc)) #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 *); void qlt_put_sess(struct qla_tgt_sess *sess); 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); /* * 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 void qla_reverse_ini_mode(struct scsi_qla_host *ha) { if (ha->host->active_mode & MODE_INITIATOR) ha->host->active_mode &= ~MODE_INITIATOR; else ha->host->active_mode |= MODE_INITIATOR; } static inline uint32_t sid_to_key(const uint8_t *s_id) { uint32_t key; key = (((unsigned long)s_id[0] << 16) | ((unsigned long)s_id[1] << 8) | (unsigned long)s_id[2]); return key; } static inline void sid_to_portid(const uint8_t *s_id, port_id_t *p) { memset(p, 0, sizeof(*p)); p->b.domain = s_id[0]; p->b.area = s_id[1]; p->b.al_pa = s_id[2]; } /* * Exported symbols from qla_target.c LLD logic used by qla2xxx code.. */ extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, 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 void qlt_rff_id(struct scsi_qla_host *, struct ct_sns_req *); 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 scsi_qla_host *); extern void qlt_logo_completion_handler(fc_port_t *, int); extern void qlt_do_generation_tick(struct scsi_qla_host *, int *); #endif /* __QLA_TARGET_H */