Edit File: iscsi_common.h
/* QLogic qed NIC Driver * Copyright (c) 2015-2017 QLogic Corporation * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and /or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #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 e4_ystorm_iscsi_task_ag_ctx { u8 reserved; u8 byte1; __le16 word0; u8 flags0; #define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF #define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 #define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 #define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_MASK 0x1 /* bit3 */ #define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_SHIFT 7 u8 flags1; #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 u8 flags2; #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 u8 byte2; __le32 TTT; u8 byte3; u8 byte4; __le16 word1; }; struct e4_mstorm_iscsi_task_ag_ctx { u8 cdu_validation; u8 byte1; __le16 task_cid; u8 flags0; #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 #define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_SHIFT 5 #define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7 u8 flags1; #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 u8 flags2; #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 u8 byte2; __le32 reg0; u8 byte3; u8 byte4; __le16 word1; }; struct e4_ustorm_iscsi_task_ag_ctx { u8 reserved; u8 state; __le16 icid; u8 flags0; #define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF #define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 #define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 #define E4_USTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_SHIFT 5 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6 u8 flags1; #define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 #define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6 u8 flags2; #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0 #define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7 u8 flags3; #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF #define E4_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 e4_iscsi_task_context { struct ystorm_iscsi_task_st_ctx ystorm_st_context; struct e4_ystorm_iscsi_task_ag_ctx ystorm_ag_context; struct regpair ystorm_ag_padding[2]; struct tdif_task_context tdif_context; struct e4_mstorm_iscsi_task_ag_ctx mstorm_ag_context; struct regpair mstorm_ag_padding[2]; struct e4_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; __le32 initial_ack; __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 pbl_page_size_log; u8 pbe_page_size_log; u8 default_cq; __le32 stat_sn; }; /* 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; }; /* spe message header */ struct iscsi_slow_path_hdr { u8 op_code; u8 flags; #define ISCSI_SLOW_PATH_HDR_RESERVED0_MASK 0xF #define ISCSI_SLOW_PATH_HDR_RESERVED0_SHIFT 0 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_MASK 0x7 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_SHIFT 4 #define ISCSI_SLOW_PATH_HDR_RESERVED1_MASK 0x1 #define ISCSI_SLOW_PATH_HDR_RESERVED1_SHIFT 7 }; /* iSCSI connection update params passed by driver to FW in ISCSI update *ramrod. */ struct iscsi_conn_update_ramrod_params { struct iscsi_slow_path_hdr hdr; __le16 conn_id; __le32 fw_cid; 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 reserved0[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 { struct iscsi_slow_path_hdr hdr; __le16 conn_id; __le32 fw_cid; __le16 remote_mac_addr_lo; __le16 remote_mac_addr_mid; __le16 remote_mac_addr_hi; u8 reserved0[2]; }; /* iSCSI and TCP connection (Option 1) offload params passed by driver to FW in * iSCSI offload ramrod. */ struct iscsi_spe_conn_offload { struct iscsi_slow_path_hdr hdr; __le16 conn_id; __le32 fw_cid; 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 { struct iscsi_slow_path_hdr hdr; __le16 conn_id; __le32 fw_cid; struct iscsi_conn_offload_params iscsi; struct tcp_offload_params_opt2 tcp; }; /* iSCSI collect connection statistics request */ struct iscsi_spe_conn_statistics { struct iscsi_slow_path_hdr hdr; __le16 conn_id; __le32 fw_cid; u8 reset_stats; u8 reserved0[7]; struct regpair stats_cnts_addr; }; /* iSCSI connection termination request */ struct iscsi_spe_conn_termination { struct iscsi_slow_path_hdr hdr; __le16 conn_id; __le32 fw_cid; u8 abortive; u8 reserved0[7]; struct regpair queue_cnts_addr; struct regpair query_params_addr; }; /* iSCSI firmware function destroy parameters */ struct iscsi_spe_func_dstry { struct iscsi_slow_path_hdr hdr; __le16 reserved0; __le32 reserved1; }; /* iSCSI firmware function init parameters */ struct iscsi_spe_func_init { struct iscsi_slow_path_hdr hdr; __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; __le16 reserved1; __le32 reserved2; 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 e4_tstorm_iscsi_task_ag_ctx { u8 byte0; u8 byte1; __le16 word0; u8 flags0; #define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF #define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7 u8 flags1; #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6 u8 flags2; #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6 u8 flags3; #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7 u8 flags4; #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 #define E4_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__ */