diff options
Diffstat (limited to 'include/linux/qed/iscsi_common.h')
| -rw-r--r-- | include/linux/qed/iscsi_common.h | 1530 |
1 files changed, 1530 insertions, 0 deletions
diff --git a/include/linux/qed/iscsi_common.h b/include/linux/qed/iscsi_common.h new file mode 100644 index 000000000..1a60285a0 --- /dev/null +++ b/include/linux/qed/iscsi_common.h @@ -0,0 +1,1530 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* QLogic qed NIC Driver + * Copyright (c) 2015-2017 QLogic Corporation + * Copyright (c) 2019-2020 Marvell International Ltd. + */ + +#ifndef __ISCSI_COMMON__ +#define __ISCSI_COMMON__ + +/**********************/ +/* ISCSI FW CONSTANTS */ +/**********************/ + +/* iSCSI HSI constants */ +#define ISCSI_DEFAULT_MTU (1500) + +/* KWQ (kernel work queue) layer codes */ +#define ISCSI_SLOW_PATH_LAYER_CODE (6) + +/* iSCSI parameter defaults */ +#define ISCSI_DEFAULT_HEADER_DIGEST (0) +#define ISCSI_DEFAULT_DATA_DIGEST (0) +#define ISCSI_DEFAULT_INITIAL_R2T (1) +#define ISCSI_DEFAULT_IMMEDIATE_DATA (1) +#define ISCSI_DEFAULT_MAX_PDU_LENGTH (0x2000) +#define ISCSI_DEFAULT_FIRST_BURST_LENGTH (0x10000) +#define ISCSI_DEFAULT_MAX_BURST_LENGTH (0x40000) +#define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T (1) + +/* iSCSI parameter limits */ +#define ISCSI_MIN_VAL_MAX_PDU_LENGTH (0x200) +#define ISCSI_MAX_VAL_MAX_PDU_LENGTH (0xffffff) +#define ISCSI_MIN_VAL_BURST_LENGTH (0x200) +#define ISCSI_MAX_VAL_BURST_LENGTH (0xffffff) +#define ISCSI_MIN_VAL_MAX_OUTSTANDING_R2T (1) +#define ISCSI_MAX_VAL_MAX_OUTSTANDING_R2T (0xff) + +#define ISCSI_AHS_CNTL_SIZE 4 + +#define ISCSI_WQE_NUM_SGES_SLOWIO (0xf) + +/* iSCSI reserved params */ +#define ISCSI_ITT_ALL_ONES (0xffffffff) +#define ISCSI_TTT_ALL_ONES (0xffffffff) + +#define ISCSI_OPTION_1_OFF_CHIP_TCP 1 +#define ISCSI_OPTION_2_ON_CHIP_TCP 2 + +#define ISCSI_INITIATOR_MODE 0 +#define ISCSI_TARGET_MODE 1 + +/* iSCSI request op codes */ +#define ISCSI_OPCODE_NOP_OUT (0) +#define ISCSI_OPCODE_SCSI_CMD (1) +#define ISCSI_OPCODE_TMF_REQUEST (2) +#define ISCSI_OPCODE_LOGIN_REQUEST (3) +#define ISCSI_OPCODE_TEXT_REQUEST (4) +#define ISCSI_OPCODE_DATA_OUT (5) +#define ISCSI_OPCODE_LOGOUT_REQUEST (6) + +/* iSCSI response/messages op codes */ +#define ISCSI_OPCODE_NOP_IN (0x20) +#define ISCSI_OPCODE_SCSI_RESPONSE (0x21) +#define ISCSI_OPCODE_TMF_RESPONSE (0x22) +#define ISCSI_OPCODE_LOGIN_RESPONSE (0x23) +#define ISCSI_OPCODE_TEXT_RESPONSE (0x24) +#define ISCSI_OPCODE_DATA_IN (0x25) +#define ISCSI_OPCODE_LOGOUT_RESPONSE (0x26) +#define ISCSI_OPCODE_R2T (0x31) +#define ISCSI_OPCODE_ASYNC_MSG (0x32) +#define ISCSI_OPCODE_REJECT (0x3f) + +/* iSCSI stages */ +#define ISCSI_STAGE_SECURITY_NEGOTIATION (0) +#define ISCSI_STAGE_LOGIN_OPERATIONAL_NEGOTIATION (1) +#define ISCSI_STAGE_FULL_FEATURE_PHASE (3) + +/* iSCSI CQE errors */ +#define CQE_ERROR_BITMAP_DATA_DIGEST (0x08) +#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN (0x10) +#define CQE_ERROR_BITMAP_DATA_TRUNCATED (0x20) + +/* Union of data bd_opaque/ tq_tid */ +union bd_opaque_tq_union { + __le16 bd_opaque; + __le16 tq_tid; +}; + +/* ISCSI SGL entry */ +struct cqe_error_bitmap { + u8 cqe_error_status_bits; +#define CQE_ERROR_BITMAP_DIF_ERR_BITS_MASK 0x7 +#define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT 0 +#define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK 0x1 +#define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT 3 +#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK 0x1 +#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4 +#define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK 0x1 +#define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_SHIFT 5 +#define CQE_ERROR_BITMAP_UNDER_RUN_ERR_MASK 0x1 +#define CQE_ERROR_BITMAP_UNDER_RUN_ERR_SHIFT 6 +#define CQE_ERROR_BITMAP_RESERVED2_MASK 0x1 +#define CQE_ERROR_BITMAP_RESERVED2_SHIFT 7 +}; + +union cqe_error_status { + u8 error_status; + struct cqe_error_bitmap error_bits; +}; + +/* iSCSI Login Response PDU header */ +struct data_hdr { + __le32 data[12]; +}; + +struct lun_mapper_addr_reserved { + struct regpair lun_mapper_addr; + u8 reserved0[8]; +}; + +/* rdif conetxt for dif on immediate */ +struct dif_on_immediate_params { + __le32 initial_ref_tag; + __le16 application_tag; + __le16 application_tag_mask; + __le16 flags1; +#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_SHIFT 0 +#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_SHIFT 1 +#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_SHIFT 2 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_SHIFT 3 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_SHIFT 4 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_SHIFT 5 +#define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_SHIFT 6 +#define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_SHIFT 7 +#define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_MASK 0x3 +#define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_SHIFT 8 +#define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_MASK 0xF +#define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_SHIFT 10 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_SHIFT 14 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_SHIFT 15 + u8 flags0; +#define DIF_ON_IMMEDIATE_PARAMS_RESERVED_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_RESERVED_SHIFT 0 +#define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_SHIFT 1 +#define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_SHIFT 2 +#define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_SHIFT 3 +#define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_MASK 0x3 +#define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_SHIFT 4 +#define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_SHIFT 6 +#define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_MASK 0x1 +#define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_SHIFT 7 + u8 reserved_zero[5]; +}; + +/* iSCSI dif on immediate mode attributes union */ +union dif_configuration_params { + struct lun_mapper_addr_reserved lun_mapper_address; + struct dif_on_immediate_params def_dif_conf; +}; + +/* Union of data/r2t sequence number */ +union iscsi_seq_num { + __le16 data_sn; + __le16 r2t_sn; +}; + +/* iSCSI DIF flags */ +struct iscsi_dif_flags { + u8 flags; +#define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF +#define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0 +#define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK 0x1 +#define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT 4 +#define ISCSI_DIF_FLAGS_HOST_INTERFACE_MASK 0x7 +#define ISCSI_DIF_FLAGS_HOST_INTERFACE_SHIFT 5 +}; + +/* The iscsi storm task context of Ystorm */ +struct ystorm_iscsi_task_state { + struct scsi_cached_sges data_desc; + struct scsi_sgl_params sgl_params; + __le32 exp_r2t_sn; + __le32 buffer_offset; + union iscsi_seq_num seq_num; + struct iscsi_dif_flags dif_flags; + u8 flags; +#define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK 0x1 +#define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0 +#define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK 0x1 +#define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT 1 +#define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_MASK 0x1 +#define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_SHIFT 2 +#define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK 0x1F +#define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT 3 +}; + +/* The iscsi storm task context of Ystorm */ +struct ystorm_iscsi_task_rxmit_opt { + __le32 fast_rxmit_sge_offset; + __le32 scan_start_buffer_offset; + __le32 fast_rxmit_buffer_offset; + u8 scan_start_sgl_index; + u8 fast_rxmit_sgl_index; + __le16 reserved; +}; + +/* iSCSI Common PDU header */ +struct iscsi_common_hdr { + u8 hdr_status; + u8 hdr_response; + u8 hdr_flags; + u8 hdr_first_byte; +#define ISCSI_COMMON_HDR_OPCODE_MASK 0x3F +#define ISCSI_COMMON_HDR_OPCODE_SHIFT 0 +#define ISCSI_COMMON_HDR_IMM_MASK 0x1 +#define ISCSI_COMMON_HDR_IMM_SHIFT 6 +#define ISCSI_COMMON_HDR_RSRV_MASK 0x1 +#define ISCSI_COMMON_HDR_RSRV_SHIFT 7 + __le32 hdr_second_dword; +#define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair lun_reserved; + __le32 itt; + __le32 ttt; + __le32 cmdstat_sn; + __le32 exp_statcmd_sn; + __le32 max_cmd_sn; + __le32 data[3]; +}; + +/* iSCSI Command PDU header */ +struct iscsi_cmd_hdr { + __le16 reserved1; + u8 flags_attr; +#define ISCSI_CMD_HDR_ATTR_MASK 0x7 +#define ISCSI_CMD_HDR_ATTR_SHIFT 0 +#define ISCSI_CMD_HDR_RSRV_MASK 0x3 +#define ISCSI_CMD_HDR_RSRV_SHIFT 3 +#define ISCSI_CMD_HDR_WRITE_MASK 0x1 +#define ISCSI_CMD_HDR_WRITE_SHIFT 5 +#define ISCSI_CMD_HDR_READ_MASK 0x1 +#define ISCSI_CMD_HDR_READ_SHIFT 6 +#define ISCSI_CMD_HDR_FINAL_MASK 0x1 +#define ISCSI_CMD_HDR_FINAL_SHIFT 7 + u8 hdr_first_byte; +#define ISCSI_CMD_HDR_OPCODE_MASK 0x3F +#define ISCSI_CMD_HDR_OPCODE_SHIFT 0 +#define ISCSI_CMD_HDR_IMM_MASK 0x1 +#define ISCSI_CMD_HDR_IMM_SHIFT 6 +#define ISCSI_CMD_HDR_RSRV1_MASK 0x1 +#define ISCSI_CMD_HDR_RSRV1_SHIFT 7 + __le32 hdr_second_dword; +#define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair lun; + __le32 itt; + __le32 expected_transfer_length; + __le32 cmd_sn; + __le32 exp_stat_sn; + __le32 cdb[4]; +}; + +/* iSCSI Command PDU header with Extended CDB (Initiator Mode) */ +struct iscsi_ext_cdb_cmd_hdr { + __le16 reserved1; + u8 flags_attr; +#define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK 0x7 +#define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT 0 +#define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK 0x3 +#define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT 3 +#define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK 0x1 +#define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT 5 +#define ISCSI_EXT_CDB_CMD_HDR_READ_MASK 0x1 +#define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT 6 +#define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK 0x1 +#define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT 7 + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK 0xFF +#define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT 24 + struct regpair lun; + __le32 itt; + __le32 expected_transfer_length; + __le32 cmd_sn; + __le32 exp_stat_sn; + struct scsi_sge cdb_sge; +}; + +/* iSCSI login request PDU header */ +struct iscsi_login_req_hdr { + u8 version_min; + u8 version_max; + u8 flags_attr; +#define ISCSI_LOGIN_REQ_HDR_NSG_MASK 0x3 +#define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT 0 +#define ISCSI_LOGIN_REQ_HDR_CSG_MASK 0x3 +#define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT 2 +#define ISCSI_LOGIN_REQ_HDR_RSRV_MASK 0x3 +#define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT 4 +#define ISCSI_LOGIN_REQ_HDR_C_MASK 0x1 +#define ISCSI_LOGIN_REQ_HDR_C_SHIFT 6 +#define ISCSI_LOGIN_REQ_HDR_T_MASK 0x1 +#define ISCSI_LOGIN_REQ_HDR_T_SHIFT 7 + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24 + __le32 isid_tabc; + __le16 tsih; + __le16 isid_d; + __le32 itt; + __le16 reserved1; + __le16 cid; + __le32 cmd_sn; + __le32 exp_stat_sn; + __le32 reserved2[4]; +}; + +/* iSCSI logout request PDU header */ +struct iscsi_logout_req_hdr { + __le16 reserved0; + u8 reason_code; + u8 opcode; + __le32 reserved1; + __le32 reserved2[2]; + __le32 itt; + __le16 reserved3; + __le16 cid; + __le32 cmd_sn; + __le32 exp_stat_sn; + __le32 reserved4[4]; +}; + +/* iSCSI Data-out PDU header */ +struct iscsi_data_out_hdr { + __le16 reserved1; + u8 flags_attr; +#define ISCSI_DATA_OUT_HDR_RSRV_MASK 0x7F +#define ISCSI_DATA_OUT_HDR_RSRV_SHIFT 0 +#define ISCSI_DATA_OUT_HDR_FINAL_MASK 0x1 +#define ISCSI_DATA_OUT_HDR_FINAL_SHIFT 7 + u8 opcode; + __le32 reserved2; + struct regpair lun; + __le32 itt; + __le32 ttt; + __le32 reserved3; + __le32 exp_stat_sn; + __le32 reserved4; + __le32 data_sn; + __le32 buffer_offset; + __le32 reserved5; +}; + +/* iSCSI Data-in PDU header */ +struct iscsi_data_in_hdr { + u8 status_rsvd; + u8 reserved1; + u8 flags; +#define ISCSI_DATA_IN_HDR_STATUS_MASK 0x1 +#define ISCSI_DATA_IN_HDR_STATUS_SHIFT 0 +#define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK 0x1 +#define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1 +#define ISCSI_DATA_IN_HDR_OVERFLOW_MASK 0x1 +#define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT 2 +#define ISCSI_DATA_IN_HDR_RSRV_MASK 0x7 +#define ISCSI_DATA_IN_HDR_RSRV_SHIFT 3 +#define ISCSI_DATA_IN_HDR_ACK_MASK 0x1 +#define ISCSI_DATA_IN_HDR_ACK_SHIFT 6 +#define ISCSI_DATA_IN_HDR_FINAL_MASK 0x1 +#define ISCSI_DATA_IN_HDR_FINAL_SHIFT 7 + u8 opcode; + __le32 reserved2; + struct regpair lun; + __le32 itt; + __le32 ttt; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le32 data_sn; + __le32 buffer_offset; + __le32 residual_count; +}; + +/* iSCSI R2T PDU header */ +struct iscsi_r2t_hdr { + u8 reserved0[3]; + u8 opcode; + __le32 reserved2; + struct regpair lun; + __le32 itt; + __le32 ttt; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le32 r2t_sn; + __le32 buffer_offset; + __le32 desired_data_trns_len; +}; + +/* iSCSI NOP-out PDU header */ +struct iscsi_nop_out_hdr { + __le16 reserved1; + u8 flags_attr; +#define ISCSI_NOP_OUT_HDR_RSRV_MASK 0x7F +#define ISCSI_NOP_OUT_HDR_RSRV_SHIFT 0 +#define ISCSI_NOP_OUT_HDR_CONST1_MASK 0x1 +#define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7 + u8 opcode; + __le32 reserved2; + struct regpair lun; + __le32 itt; + __le32 ttt; + __le32 cmd_sn; + __le32 exp_stat_sn; + __le32 reserved3; + __le32 reserved4; + __le32 reserved5; + __le32 reserved6; +}; + +/* iSCSI NOP-in PDU header */ +struct iscsi_nop_in_hdr { + __le16 reserved0; + u8 flags_attr; +#define ISCSI_NOP_IN_HDR_RSRV_MASK 0x7F +#define ISCSI_NOP_IN_HDR_RSRV_SHIFT 0 +#define ISCSI_NOP_IN_HDR_CONST1_MASK 0x1 +#define ISCSI_NOP_IN_HDR_CONST1_SHIFT 7 + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair lun; + __le32 itt; + __le32 ttt; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le32 reserved5; + __le32 reserved6; + __le32 reserved7; +}; + +/* iSCSI Login Response PDU header */ +struct iscsi_login_response_hdr { + u8 version_active; + u8 version_max; + u8 flags_attr; +#define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK 0x3 +#define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT 0 +#define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK 0x3 +#define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT 2 +#define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK 0x3 +#define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT 4 +#define ISCSI_LOGIN_RESPONSE_HDR_C_MASK 0x1 +#define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT 6 +#define ISCSI_LOGIN_RESPONSE_HDR_T_MASK 0x1 +#define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT 7 + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 + __le32 isid_tabc; + __le16 tsih; + __le16 isid_d; + __le32 itt; + __le32 reserved1; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le16 reserved2; + u8 status_detail; + u8 status_class; + __le32 reserved4[2]; +}; + +/* iSCSI Logout Response PDU header */ +struct iscsi_logout_response_hdr { + u8 reserved1; + u8 response; + u8 flags; + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 + __le32 reserved2[2]; + __le32 itt; + __le32 reserved3; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le32 reserved4; + __le16 time_2_retain; + __le16 time_2_wait; + __le32 reserved5[1]; +}; + +/* iSCSI Text Request PDU header */ +struct iscsi_text_request_hdr { + __le16 reserved0; + u8 flags_attr; +#define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK 0x3F +#define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT 0 +#define ISCSI_TEXT_REQUEST_HDR_C_MASK 0x1 +#define ISCSI_TEXT_REQUEST_HDR_C_SHIFT 6 +#define ISCSI_TEXT_REQUEST_HDR_F_MASK 0x1 +#define ISCSI_TEXT_REQUEST_HDR_F_SHIFT 7 + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair lun; + __le32 itt; + __le32 ttt; + __le32 cmd_sn; + __le32 exp_stat_sn; + __le32 reserved4[4]; +}; + +/* iSCSI Text Response PDU header */ +struct iscsi_text_response_hdr { + __le16 reserved1; + u8 flags; +#define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK 0x3F +#define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT 0 +#define ISCSI_TEXT_RESPONSE_HDR_C_MASK 0x1 +#define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT 6 +#define ISCSI_TEXT_RESPONSE_HDR_F_MASK 0x1 +#define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT 7 + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair lun; + __le32 itt; + __le32 ttt; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le32 reserved4[3]; +}; + +/* iSCSI TMF Request PDU header */ +struct iscsi_tmf_request_hdr { + __le16 reserved0; + u8 function; + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair lun; + __le32 itt; + __le32 rtt; + __le32 cmd_sn; + __le32 exp_stat_sn; + __le32 ref_cmd_sn; + __le32 exp_data_sn; + __le32 reserved4[2]; +}; + +struct iscsi_tmf_response_hdr { + u8 reserved2; + u8 hdr_response; + u8 hdr_flags; + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair reserved0; + __le32 itt; + __le32 reserved1; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le32 reserved4[3]; +}; + +/* iSCSI Response PDU header */ +struct iscsi_response_hdr { + u8 hdr_status; + u8 hdr_response; + u8 hdr_flags; + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair lun; + __le32 itt; + __le32 snack_tag; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le32 exp_data_sn; + __le32 bi_residual_count; + __le32 residual_count; +}; + +/* iSCSI Reject PDU header */ +struct iscsi_reject_hdr { + u8 reserved4; + u8 hdr_reason; + u8 hdr_flags; + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair reserved0; + __le32 all_ones; + __le32 reserved2; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le32 data_sn; + __le32 reserved3[2]; +}; + +/* iSCSI Asynchronous Message PDU header */ +struct iscsi_async_msg_hdr { + __le16 reserved0; + u8 flags_attr; +#define ISCSI_ASYNC_MSG_HDR_RSRV_MASK 0x7F +#define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT 0 +#define ISCSI_ASYNC_MSG_HDR_CONST1_MASK 0x1 +#define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT 7 + u8 opcode; + __le32 hdr_second_dword; +#define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK 0xFFFFFF +#define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT 0 +#define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK 0xFF +#define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24 + struct regpair lun; + __le32 all_ones; + __le32 reserved1; + __le32 stat_sn; + __le32 exp_cmd_sn; + __le32 max_cmd_sn; + __le16 param1_rsrv; + u8 async_vcode; + u8 async_event; + __le16 param3_rsrv; + __le16 param2_rsrv; + __le32 reserved7; +}; + +/* PDU header part of Ystorm task context */ +union iscsi_task_hdr { + struct iscsi_common_hdr common; + struct data_hdr data; + struct iscsi_cmd_hdr cmd; + struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd; + struct iscsi_login_req_hdr login_req; + struct iscsi_logout_req_hdr logout_req; + struct iscsi_data_out_hdr data_out; + struct iscsi_data_in_hdr data_in; + struct iscsi_r2t_hdr r2t; + struct iscsi_nop_out_hdr nop_out; + struct iscsi_nop_in_hdr nop_in; + struct iscsi_login_response_hdr login_response; + struct iscsi_logout_response_hdr logout_response; + struct iscsi_text_request_hdr text_request; + struct iscsi_text_response_hdr text_response; + struct iscsi_tmf_request_hdr tmf_request; + struct iscsi_tmf_response_hdr tmf_response; + struct iscsi_response_hdr response; + struct iscsi_reject_hdr reject; + struct iscsi_async_msg_hdr async_msg; +}; + +/* The iscsi storm task context of Ystorm */ +struct ystorm_iscsi_task_st_ctx { + struct ystorm_iscsi_task_state state; + struct ystorm_iscsi_task_rxmit_opt rxmit_opt; + union iscsi_task_hdr pdu_hdr; +}; + +struct ystorm_iscsi_task_ag_ctx { + u8 reserved; + u8 byte1; + __le16 word0; + u8 flags0; +#define YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF +#define YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 +#define YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 +#define YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 +#define YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 +#define YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_MASK 0x1 /* bit3 */ +#define YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_SHIFT 7 + u8 flags1; +#define YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 +#define YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0 +#define YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 +#define YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 +#define YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 +#define YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4 +#define YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6 +#define YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 + u8 flags2; +#define YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 +#define YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 + u8 byte2; + __le32 TTT; + u8 byte3; + u8 byte4; + __le16 word1; +}; + +struct mstorm_iscsi_task_ag_ctx { + u8 cdu_validation; + u8 byte1; + __le16 task_cid; + u8 flags0; +#define MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF +#define MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 +#define MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 +#define MSTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_SHIFT 5 +#define MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 +#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7 + u8 flags1; +#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 +#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0 +#define MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 +#define MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 +#define MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 +#define MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4 +#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6 +#define MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 + u8 flags2; +#define MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 +#define MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 + u8 byte2; + __le32 reg0; + u8 byte3; + u8 byte4; + __le16 word1; +}; + +struct ustorm_iscsi_task_ag_ctx { + u8 reserved; + u8 state; + __le16 icid; + u8 flags0; +#define USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF +#define USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 +#define USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 +#define USTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_SHIFT 5 +#define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 +#define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6 + u8 flags1; +#define USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 +#define USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0 +#define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 +#define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2 +#define USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 +#define USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4 +#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 +#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6 + u8 flags2; +#define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0 +#define USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1 +#define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2 +#define USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3 +#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4 +#define USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5 +#define USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6 +#define USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7 + u8 flags3; +#define USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0 +#define USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1 +#define USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2 +#define USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 +#define USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3 +#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF +#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4 + __le32 dif_err_intervals; + __le32 dif_error_1st_interval; + __le32 rcv_cont_len; + __le32 exp_cont_len; + __le32 total_data_acked; + __le32 exp_data_acked; + u8 byte2; + u8 byte3; + __le16 word1; + __le16 next_tid; + __le16 word3; + __le32 hdr_residual_count; + __le32 exp_r2t_sn; +}; + +/* The iscsi storm task context of Mstorm */ +struct mstorm_iscsi_task_st_ctx { + struct scsi_cached_sges data_desc; + struct scsi_sgl_params sgl_params; + __le32 rem_task_size; + __le32 data_buffer_offset; + u8 task_type; + struct iscsi_dif_flags dif_flags; + __le16 dif_task_icid; + struct regpair sense_db; + __le32 expected_itt; + __le32 reserved1; +}; + +struct iscsi_reg1 { + __le32 reg1_map; +#define ISCSI_REG1_NUM_SGES_MASK 0xF +#define ISCSI_REG1_NUM_SGES_SHIFT 0 +#define ISCSI_REG1_RESERVED1_MASK 0xFFFFFFF +#define ISCSI_REG1_RESERVED1_SHIFT 4 +}; + +struct tqe_opaque { + __le16 opaque[2]; +}; + +/* The iscsi storm task context of Ustorm */ +struct ustorm_iscsi_task_st_ctx { + __le32 rem_rcv_len; + __le32 exp_data_transfer_len; + __le32 exp_data_sn; + struct regpair lun; + struct iscsi_reg1 reg1; + u8 flags2; +#define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_SHIFT 0 +#define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_MASK 0x7F +#define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_SHIFT 1 + struct iscsi_dif_flags dif_flags; + __le16 reserved3; + struct tqe_opaque tqe_opaque_list; + __le32 reserved5; + __le32 reserved6; + __le32 reserved7; + u8 task_type; + u8 error_flags; +#define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT 0 +#define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_SHIFT 1 +#define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_SHIFT 2 +#define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_MASK 0x1F +#define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_SHIFT 3 + u8 flags; +#define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_MASK 0x3 +#define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT 0 +#define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT 2 +#define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT 3 +#define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4 +#define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT 5 +#define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_SHIFT 6 +#define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_MASK 0x1 +#define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_SHIFT 7 + u8 cq_rss_number; +}; + +/* iscsi task context */ +struct iscsi_task_context { + struct ystorm_iscsi_task_st_ctx ystorm_st_context; + struct ystorm_iscsi_task_ag_ctx ystorm_ag_context; + struct regpair ystorm_ag_padding[2]; + struct tdif_task_context tdif_context; + struct mstorm_iscsi_task_ag_ctx mstorm_ag_context; + struct regpair mstorm_ag_padding[2]; + struct ustorm_iscsi_task_ag_ctx ustorm_ag_context; + struct mstorm_iscsi_task_st_ctx mstorm_st_context; + struct ustorm_iscsi_task_st_ctx ustorm_st_context; + struct rdif_task_context rdif_context; +}; + +/* iSCSI connection offload params passed by driver to FW in ISCSI offload + * ramrod. + */ +struct iscsi_conn_offload_params { + struct regpair sq_pbl_addr; + struct regpair r2tq_pbl_addr; + struct regpair xhq_pbl_addr; + struct regpair uhq_pbl_addr; + __le16 physical_q0; + __le16 physical_q1; + u8 flags; +#define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_MASK 0x1 +#define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0 +#define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK 0x1 +#define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT 1 +#define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK 0x1 +#define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2 +#define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK 0x1F +#define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT 3 + u8 default_cq; + __le16 reserved0; + __le32 stat_sn; + __le32 initial_ack; +}; + +/* iSCSI connection statistics */ +struct iscsi_conn_stats_params { + struct regpair iscsi_tcp_tx_packets_cnt; + struct regpair iscsi_tcp_tx_bytes_cnt; + struct regpair iscsi_tcp_tx_rxmit_cnt; + struct regpair iscsi_tcp_rx_packets_cnt; + struct regpair iscsi_tcp_rx_bytes_cnt; + struct regpair iscsi_tcp_rx_dup_ack_cnt; + __le32 iscsi_tcp_rx_chksum_err_cnt; + __le32 reserved; +}; + + +/* iSCSI connection update params passed by driver to FW in ISCSI update + *ramrod. + */ +struct iscsi_conn_update_ramrod_params { + __le16 reserved0; + __le16 conn_id; + __le32 reserved1; + u8 flags; +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK 0x1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT 0 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK 0x1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT 1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK 0x1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT 2 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK 0x1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK 0x1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK 0x1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_MASK 0x1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_SHIFT 6 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_MASK 0x1 +#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_SHIFT 7 + u8 reserved3[3]; + __le32 max_seq_size; + __le32 max_send_pdu_length; + __le32 max_recv_pdu_length; + __le32 first_seq_length; + __le32 exp_stat_sn; + union dif_configuration_params dif_on_imme_params; +}; + +/* iSCSI CQ element */ +struct iscsi_cqe_common { + __le16 conn_id; + u8 cqe_type; + union cqe_error_status error_bitmap; + __le32 reserved[3]; + union iscsi_task_hdr iscsi_hdr; +}; + +/* iSCSI CQ element */ +struct iscsi_cqe_solicited { + __le16 conn_id; + u8 cqe_type; + union cqe_error_status error_bitmap; + __le16 itid; + u8 task_type; + u8 fw_dbg_field; + u8 caused_conn_err; + u8 reserved0[3]; + __le32 data_truncated_bytes; + union iscsi_task_hdr iscsi_hdr; +}; + +/* iSCSI CQ element */ +struct iscsi_cqe_unsolicited { + __le16 conn_id; + u8 cqe_type; + union cqe_error_status error_bitmap; + __le16 reserved0; + u8 reserved1; + u8 unsol_cqe_type; + __le16 rqe_opaque; + __le16 reserved2[3]; + union iscsi_task_hdr iscsi_hdr; +}; + +/* iSCSI CQ element */ +union iscsi_cqe { + struct iscsi_cqe_common cqe_common; + struct iscsi_cqe_solicited cqe_solicited; + struct iscsi_cqe_unsolicited cqe_unsolicited; +}; + +/* iSCSI CQE type */ +enum iscsi_cqes_type { + ISCSI_CQE_TYPE_SOLICITED = 1, + ISCSI_CQE_TYPE_UNSOLICITED, + ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE, + ISCSI_CQE_TYPE_TASK_CLEANUP, + ISCSI_CQE_TYPE_DUMMY, + MAX_ISCSI_CQES_TYPE +}; + +/* iSCSI CQE type */ +enum iscsi_cqe_unsolicited_type { + ISCSI_CQE_UNSOLICITED_NONE, + ISCSI_CQE_UNSOLICITED_SINGLE, + ISCSI_CQE_UNSOLICITED_FIRST, + ISCSI_CQE_UNSOLICITED_MIDDLE, + ISCSI_CQE_UNSOLICITED_LAST, + MAX_ISCSI_CQE_UNSOLICITED_TYPE +}; + +/* iscsi debug modes */ +struct iscsi_debug_modes { + u8 flags; +#define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_MASK 0x1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT 0 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK 0x1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT 1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK 0x1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT 2 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK 0x1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT 3 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK 0x1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK 0x1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT 5 +#define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_MASK 0x1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_SHIFT 6 +#define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_MASK 0x1 +#define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_SHIFT 7 +}; + +/* iSCSI kernel completion queue IDs */ +enum iscsi_eqe_opcode { + ISCSI_EVENT_TYPE_INIT_FUNC = 0, + ISCSI_EVENT_TYPE_DESTROY_FUNC, + ISCSI_EVENT_TYPE_OFFLOAD_CONN, + ISCSI_EVENT_TYPE_UPDATE_CONN, + ISCSI_EVENT_TYPE_CLEAR_SQ, + ISCSI_EVENT_TYPE_TERMINATE_CONN, + ISCSI_EVENT_TYPE_MAC_UPDATE_CONN, + ISCSI_EVENT_TYPE_COLLECT_STATS_CONN, + ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE, + ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE, + ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES = 10, + ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD, + ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD, + ISCSI_EVENT_TYPE_ASYN_SYN_RCVD, + ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME, + ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT, + ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT, + ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2, + ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR, + ISCSI_EVENT_TYPE_TCP_CONN_ERROR, + MAX_ISCSI_EQE_OPCODE +}; + +/* iSCSI EQE and CQE completion status */ +enum iscsi_error_types { + ISCSI_STATUS_NONE = 0, + ISCSI_CQE_ERROR_UNSOLICITED_RCV_ON_INVALID_CONN = 1, + ISCSI_CONN_ERROR_TASK_CID_MISMATCH, + ISCSI_CONN_ERROR_TASK_NOT_VALID, + ISCSI_CONN_ERROR_RQ_RING_IS_FULL, + ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL, + ISCSI_CONN_ERROR_HQE_CACHING_FAILED, + ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR, + ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR, + ISCSI_CONN_ERROR_DATA_OVERRUN, + ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR, + ISCSI_CONN_ERROR_IP_OPTIONS_ERROR, + ISCSI_CONN_ERROR_PRS_ERRORS, + ISCSI_CONN_ERROR_CONNECT_INVALID_TCP_OPTION, + ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR, + ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN, + ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE, + ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE, + ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE, + ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE, + ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE, + ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL, + ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT, + ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT, + ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET, + ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO, + ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2, + ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN, + ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO, + ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE, + ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO, + ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG, + ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT, + ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX, + ISCSI_CONN_ERROR_SENSE_DATA_LENGTH, + ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR, + ISCSI_CONN_ERROR_INVALID_ITT, + ISCSI_ERROR_UNKNOWN, + MAX_ISCSI_ERROR_TYPES +}; + +/* iSCSI Ramrod Command IDs */ +enum iscsi_ramrod_cmd_id { + ISCSI_RAMROD_CMD_ID_UNUSED = 0, + ISCSI_RAMROD_CMD_ID_INIT_FUNC = 1, + ISCSI_RAMROD_CMD_ID_DESTROY_FUNC = 2, + ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN = 3, + ISCSI_RAMROD_CMD_ID_UPDATE_CONN = 4, + ISCSI_RAMROD_CMD_ID_TERMINATION_CONN = 5, + ISCSI_RAMROD_CMD_ID_CLEAR_SQ = 6, + ISCSI_RAMROD_CMD_ID_MAC_UPDATE = 7, + ISCSI_RAMROD_CMD_ID_CONN_STATS = 8, + MAX_ISCSI_RAMROD_CMD_ID +}; + +/* iSCSI connection termination request */ +struct iscsi_spe_conn_mac_update { + __le16 reserved0; + __le16 conn_id; + __le32 reserved1; + __le16 remote_mac_addr_lo; + __le16 remote_mac_addr_mid; + __le16 remote_mac_addr_hi; + u8 reserved2[2]; +}; + +/* iSCSI and TCP connection (Option 1) offload params passed by driver to FW in + * iSCSI offload ramrod. + */ +struct iscsi_spe_conn_offload { + __le16 reserved0; + __le16 conn_id; + __le32 reserved1; + struct iscsi_conn_offload_params iscsi; + struct tcp_offload_params tcp; +}; + +/* iSCSI and TCP connection(Option 2) offload params passed by driver to FW in + * iSCSI offload ramrod. + */ +struct iscsi_spe_conn_offload_option2 { + __le16 reserved0; + __le16 conn_id; + __le32 reserved1; + struct iscsi_conn_offload_params iscsi; + struct tcp_offload_params_opt2 tcp; +}; + +/* iSCSI collect connection statistics request */ +struct iscsi_spe_conn_statistics { + __le16 reserved0; + __le16 conn_id; + __le32 reserved1; + u8 reset_stats; + u8 reserved2[7]; + struct regpair stats_cnts_addr; +}; + +/* iSCSI connection termination request */ +struct iscsi_spe_conn_termination { + __le16 reserved0; + __le16 conn_id; + __le32 reserved1; + u8 abortive; + u8 reserved2[7]; + struct regpair queue_cnts_addr; + struct regpair query_params_addr; +}; + +/* iSCSI firmware function init parameters */ +struct iscsi_spe_func_init { + __le16 half_way_close_timeout; + u8 num_sq_pages_in_ring; + u8 num_r2tq_pages_in_ring; + u8 num_uhq_pages_in_ring; + u8 ll2_rx_queue_id; + u8 flags; +#define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_MASK 0x1 +#define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_SHIFT 0 +#define ISCSI_SPE_FUNC_INIT_RESERVED0_MASK 0x7F +#define ISCSI_SPE_FUNC_INIT_RESERVED0_SHIFT 1 + struct iscsi_debug_modes debug_mode; + u8 params; +#define ISCSI_SPE_FUNC_INIT_MAX_SYN_RT_MASK 0xF +#define ISCSI_SPE_FUNC_INIT_MAX_SYN_RT_SHIFT 0 +#define ISCSI_SPE_FUNC_INIT_RESERVED1_MASK 0xF +#define ISCSI_SPE_FUNC_INIT_RESERVED1_SHIFT 4 + u8 reserved2[7]; + struct scsi_init_func_params func_params; + struct scsi_init_func_queues q_params; +}; + +/* iSCSI task type */ +enum iscsi_task_type { + ISCSI_TASK_TYPE_INITIATOR_WRITE, + ISCSI_TASK_TYPE_INITIATOR_READ, + ISCSI_TASK_TYPE_MIDPATH, + ISCSI_TASK_TYPE_UNSOLIC, + ISCSI_TASK_TYPE_EXCHCLEANUP, + ISCSI_TASK_TYPE_IRRELEVANT, + ISCSI_TASK_TYPE_TARGET_WRITE, + ISCSI_TASK_TYPE_TARGET_READ, + ISCSI_TASK_TYPE_TARGET_RESPONSE, + ISCSI_TASK_TYPE_LOGIN_RESPONSE, + ISCSI_TASK_TYPE_TARGET_IMM_W_DIF, + MAX_ISCSI_TASK_TYPE +}; + +/* iSCSI DesiredDataTransferLength/ttt union */ +union iscsi_ttt_txlen_union { + __le32 desired_tx_len; + __le32 ttt; +}; + +/* iSCSI uHQ element */ +struct iscsi_uhqe { + __le32 reg1; +#define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK 0xFFFFF +#define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT 0 +#define ISCSI_UHQE_LOCAL_COMP_MASK 0x1 +#define ISCSI_UHQE_LOCAL_COMP_SHIFT 20 +#define ISCSI_UHQE_TOGGLE_BIT_MASK 0x1 +#define ISCSI_UHQE_TOGGLE_BIT_SHIFT 21 +#define ISCSI_UHQE_PURE_PAYLOAD_MASK 0x1 +#define ISCSI_UHQE_PURE_PAYLOAD_SHIFT 22 +#define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK 0x1 +#define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23 +#define ISCSI_UHQE_TASK_ID_HI_MASK 0xFF +#define ISCSI_UHQE_TASK_ID_HI_SHIFT 24 + __le32 reg2; +#define ISCSI_UHQE_BUFFER_OFFSET_MASK 0xFFFFFF +#define ISCSI_UHQE_BUFFER_OFFSET_SHIFT 0 +#define ISCSI_UHQE_TASK_ID_LO_MASK 0xFF +#define ISCSI_UHQE_TASK_ID_LO_SHIFT 24 +}; + +/* iSCSI WQ element */ +struct iscsi_wqe { + __le16 task_id; + u8 flags; +#define ISCSI_WQE_WQE_TYPE_MASK 0x7 +#define ISCSI_WQE_WQE_TYPE_SHIFT 0 +#define ISCSI_WQE_NUM_SGES_MASK 0xF +#define ISCSI_WQE_NUM_SGES_SHIFT 3 +#define ISCSI_WQE_RESPONSE_MASK 0x1 +#define ISCSI_WQE_RESPONSE_SHIFT 7 + struct iscsi_dif_flags prot_flags; + __le32 contlen_cdbsize; +#define ISCSI_WQE_CONT_LEN_MASK 0xFFFFFF +#define ISCSI_WQE_CONT_LEN_SHIFT 0 +#define ISCSI_WQE_CDB_SIZE_MASK 0xFF +#define ISCSI_WQE_CDB_SIZE_SHIFT 24 +}; + +/* iSCSI wqe type */ +enum iscsi_wqe_type { + ISCSI_WQE_TYPE_NORMAL, + ISCSI_WQE_TYPE_TASK_CLEANUP, + ISCSI_WQE_TYPE_MIDDLE_PATH, + ISCSI_WQE_TYPE_LOGIN, + ISCSI_WQE_TYPE_FIRST_R2T_CONT, + ISCSI_WQE_TYPE_NONFIRST_R2T_CONT, + ISCSI_WQE_TYPE_RESPONSE, + MAX_ISCSI_WQE_TYPE +}; + +/* iSCSI xHQ element */ +struct iscsi_xhqe { + union iscsi_ttt_txlen_union ttt_or_txlen; + __le32 exp_stat_sn; + struct iscsi_dif_flags prot_flags; + u8 total_ahs_length; + u8 opcode; + u8 flags; +#define ISCSI_XHQE_FINAL_MASK 0x1 +#define ISCSI_XHQE_FINAL_SHIFT 0 +#define ISCSI_XHQE_STATUS_BIT_MASK 0x1 +#define ISCSI_XHQE_STATUS_BIT_SHIFT 1 +#define ISCSI_XHQE_NUM_SGES_MASK 0xF +#define ISCSI_XHQE_NUM_SGES_SHIFT 2 +#define ISCSI_XHQE_RESERVED0_MASK 0x3 +#define ISCSI_XHQE_RESERVED0_SHIFT 6 + union iscsi_seq_num seq_num; + __le16 reserved1; +}; + +/* Per PF iSCSI receive path statistics - mStorm RAM structure */ +struct mstorm_iscsi_stats_drv { + struct regpair iscsi_rx_dropped_pdus_task_not_valid; + struct regpair iscsi_rx_dup_ack_cnt; +}; + +/* Per PF iSCSI transmit path statistics - pStorm RAM structure */ +struct pstorm_iscsi_stats_drv { + struct regpair iscsi_tx_bytes_cnt; + struct regpair iscsi_tx_packet_cnt; +}; + +/* Per PF iSCSI receive path statistics - tStorm RAM structure */ +struct tstorm_iscsi_stats_drv { + struct regpair iscsi_rx_bytes_cnt; + struct regpair iscsi_rx_packet_cnt; + struct regpair iscsi_rx_new_ooo_isle_events_cnt; + struct regpair iscsi_rx_tcp_payload_bytes_cnt; + struct regpair iscsi_rx_tcp_pkt_cnt; + struct regpair iscsi_rx_pure_ack_cnt; + __le32 iscsi_cmdq_threshold_cnt; + __le32 iscsi_rq_threshold_cnt; + __le32 iscsi_immq_threshold_cnt; +}; + +/* Per PF iSCSI receive path statistics - uStorm RAM structure */ +struct ustorm_iscsi_stats_drv { + struct regpair iscsi_rx_data_pdu_cnt; + struct regpair iscsi_rx_r2t_pdu_cnt; + struct regpair iscsi_rx_total_pdu_cnt; +}; + +/* Per PF iSCSI transmit path statistics - xStorm RAM structure */ +struct xstorm_iscsi_stats_drv { + struct regpair iscsi_tx_go_to_slow_start_event_cnt; + struct regpair iscsi_tx_fast_retransmit_event_cnt; + struct regpair iscsi_tx_pure_ack_cnt; + struct regpair iscsi_tx_delayed_ack_cnt; +}; + +/* Per PF iSCSI transmit path statistics - yStorm RAM structure */ +struct ystorm_iscsi_stats_drv { + struct regpair iscsi_tx_data_pdu_cnt; + struct regpair iscsi_tx_r2t_pdu_cnt; + struct regpair iscsi_tx_total_pdu_cnt; + struct regpair iscsi_tx_tcp_payload_bytes_cnt; + struct regpair iscsi_tx_tcp_pkt_cnt; +}; + +struct tstorm_iscsi_task_ag_ctx { + u8 byte0; + u8 byte1; + __le16 word0; + u8 flags0; +#define TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF +#define TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7 + u8 flags1; +#define TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2 +#define TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4 +#define TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6 + u8 flags2; +#define TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0 +#define TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2 +#define TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4 +#define TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6 + u8 flags3; +#define TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0 +#define TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2 +#define TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3 +#define TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4 +#define TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5 +#define TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6 +#define TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7 + u8 flags4; +#define TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0 +#define TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 +#define TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7 + u8 byte2; + __le16 word1; + __le32 reg0; + u8 byte3; + u8 byte4; + __le16 word2; + __le16 word3; + __le16 word4; + __le32 reg1; + __le32 reg2; +}; + +/* iSCSI doorbell data */ +struct iscsi_db_data { + u8 params; +#define ISCSI_DB_DATA_DEST_MASK 0x3 +#define ISCSI_DB_DATA_DEST_SHIFT 0 +#define ISCSI_DB_DATA_AGG_CMD_MASK 0x3 +#define ISCSI_DB_DATA_AGG_CMD_SHIFT 2 +#define ISCSI_DB_DATA_BYPASS_EN_MASK 0x1 +#define ISCSI_DB_DATA_BYPASS_EN_SHIFT 4 +#define ISCSI_DB_DATA_RESERVED_MASK 0x1 +#define ISCSI_DB_DATA_RESERVED_SHIFT 5 +#define ISCSI_DB_DATA_AGG_VAL_SEL_MASK 0x3 +#define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6 + u8 agg_flags; + __le16 sq_prod; +}; + +#endif /* __ISCSI_COMMON__ */ |