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/*
* Copyright ( c ) 2017 - 2018 Cavium , Inc .
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
*
* 1. Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* 2. 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 .
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS " AS IS "
* AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT LIMITED TO , THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED . IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT , INDIRECT , INCIDENTAL , SPECIAL , EXEMPLARY , OR
* CONSEQUENTIAL DAMAGES ( INCLUDING , BUT NOT LIMITED TO , PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES ; LOSS OF USE , DATA , OR PROFITS ; OR BUSINESS
* INTERRUPTION ) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY , WHETHER IN
* CONTRACT , STRICT LIABILITY , OR TORT ( INCLUDING NEGLIGENCE OR OTHERWISE )
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE , EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE .
*
* $ FreeBSD $
*
*/
# 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) // 0x10000 according to RFC
# 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)
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/*
* Union of data bd_opaque / tq_tid
*/
union bd_opaque_tq_union
{
__le16 bd_opaque /* BDs opaque data */ ;
__le16 tq_tid /* Immediate Data with DIF TQe TID */ ;
} ;
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/*
* ISCSI SGL entry
*/
struct cqe_error_bitmap
{
u8 cqe_error_status_bits ;
# define CQE_ERROR_BITMAP_DIF_ERR_BITS_MASK 0x7 /* Mark task with DIF error (3 bit): [0]-CRC/checksum, [1]-app tag, [2]-reference tag */
# define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT 0
# define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK 0x1 /* Mark task with data digest error (1 bit) */
# define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT 3
# define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK 0x1 /* Mark receive on invalid connection */
# define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4
# define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */
# 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 /* all error bits as uint8 */ ;
struct cqe_error_bitmap error_bits /* cqe errors bitmap */ ;
} ;
/*
* iSCSI Login Response PDU header
*/
struct data_hdr
{
__le32 data [ 12 ] /* iscsi header data */ ;
} ;
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struct lun_mapper_addr_reserved
{
struct regpair lun_mapper_addr /* Lun mapper address */ ;
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 /* 0=512B, 1=4KB */
# define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_SHIFT 6
# define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_MASK 0x1 /* 0=None, 1=DIF */
# define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_SHIFT 7
# define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_MASK 0x3 /* 0=None, 1=DIF, 2=DIX */
# define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_SHIFT 8
# define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_MASK 0xF /* mask for refernce tag handling */
# define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_SHIFT 10
# define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_MASK 0x1 /* Forward application tag with mask */
# define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_SHIFT 14
# define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_MASK 0x1 /* Forward reference tag with mask */
# 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 /* 0 = IP checksum, 1 = CRC */
# define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_SHIFT 3
# define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_MASK 0x3 /* 1/2/3 - Protection Type */
# define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_SHIFT 4
# define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_MASK 0x1 /* 0=0x0000, 1=0xffff */
# define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_SHIFT 6
# define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_MASK 0x1 /* Keep reference tag constant */
# define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_SHIFT 7
u8 reserved_zero [ 5 ] ;
} ;
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/*
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* iSCSI dif on immediate mode attributes union
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*/
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union dif_configuration_params
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{
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struct lun_mapper_addr_reserved lun_mapper_address /* lun mapper address */ ;
struct dif_on_immediate_params def_dif_conf /* default dif on immediate rdif configuration */ ;
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} ;
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/*
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* Union of data / r2t sequence number
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*/
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union iscsi_seq_num
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{
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__le16 data_sn /* data-in sequence number */ ;
__le16 r2t_sn /* r2t pdu sequence number */ ;
} ;
/*
* iSCSI DIF flags
*/
struct iscsi_dif_flags
{
u8 flags ;
# define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF /* Protection log interval (9=512 10=1024 11=2048 12=4096 13=8192) */
# define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
# define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK 0x1 /* If DIF protection is configured against target (0=no, 1=yes) */
# define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT 4
# define ISCSI_DIF_FLAGS_HOST_INTERFACE_MASK 0x7 /* If DIF/DIX protection is configured against the host (0=none, 1=DIF, 2=DIX 2 bytes, 3=DIX 4 bytes, 4=DIX 8 bytes) */
# 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 /* Initiator mode - Expected R2T PDU index in sequence. [variable, initialized 0] */ ;
__le32 buffer_offset /* Payload data offset */ ;
union iscsi_seq_num seq_num /* PDU index in sequence */ ;
struct iscsi_dif_flags dif_flags /* Dif flags */ ;
u8 flags ;
# define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK 0x1 /* local_completion */
# define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0
# define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK 0x1 /* Equals 1 if SGL is predicted and 0 otherwise. */
# define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT 1
# define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK 0x3F
# define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT 2
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} ;
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/*
* The iscsi storm task context of Ystorm
*/
struct ystorm_iscsi_task_rxmit_opt
{
__le32 fast_rxmit_sge_offset /* SGE offset from which to continue dummy-read or start fast retransmit */ ;
__le32 scan_start_buffer_offset /* Starting buffer offset of next retransmit SGL scan */ ;
__le32 fast_rxmit_buffer_offset /* Buffer offset from which to continue dummy-read or start fast retransmit */ ;
u8 scan_start_sgl_index /* Starting SGL index of next retransmit SGL scan */ ;
u8 fast_rxmit_sgl_index /* SGL index from which to continue dummy-read or start fast retransmit */ ;
__le16 reserved /* reserved */ ;
} ;
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/*
* iSCSI Common PDU header
*/
struct iscsi_common_hdr
{
u8 hdr_status /* Status field of ISCSI header */ ;
u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */ ;
u8 hdr_flags /* Flags field of ISCSI header */ ;
u8 hdr_first_byte ;
# define ISCSI_COMMON_HDR_OPCODE_MASK 0x3F /* Opcode */
# define ISCSI_COMMON_HDR_OPCODE_SHIFT 0
# define ISCSI_COMMON_HDR_IMM_MASK 0x1 /* Immediate */
# define ISCSI_COMMON_HDR_IMM_SHIFT 6
# define ISCSI_COMMON_HDR_RSRV_MASK 0x1 /* first bit of iSCSI PDU header */
# define ISCSI_COMMON_HDR_RSRV_SHIFT 7
__le32 hdr_second_dword ;
# define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair lun_reserved /* Bytes 8..15 : LUN (if PDU contains a LUN field) or reserved */ ;
__le32 itt /* ITT - common to all headers */ ;
__le32 ttt /* bytes 20 to 23 - common ttt to various PDU headers */ ;
__le32 cmdstat_sn /* bytes 24 to 27 - common cmd_sn (initiator) or stat_sn (target) to various PDU headers */ ;
__le32 exp_statcmd_sn /* bytes 28 to 31 - common expected stat_sn (initiator) or cmd_sn (target) to various PDU headers */ ;
__le32 max_cmd_sn /* bytes 32 to 35 - common max cmd_sn to various PDU headers */ ;
__le32 data [ 3 ] /* bytes 36 to 47 */ ;
} ;
/*
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* iSCSI Command PDU header
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*/
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struct iscsi_cmd_hdr
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{
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__le16 reserved1 /* reserved */ ;
u8 flags_attr ;
# define ISCSI_CMD_HDR_ATTR_MASK 0x7 /* attributes */
# define ISCSI_CMD_HDR_ATTR_SHIFT 0
# define ISCSI_CMD_HDR_RSRV_MASK 0x3 /* reserved */
# define ISCSI_CMD_HDR_RSRV_SHIFT 3
# define ISCSI_CMD_HDR_WRITE_MASK 0x1 /* write */
# define ISCSI_CMD_HDR_WRITE_SHIFT 5
# define ISCSI_CMD_HDR_READ_MASK 0x1 /* read */
# define ISCSI_CMD_HDR_READ_SHIFT 6
# define ISCSI_CMD_HDR_FINAL_MASK 0x1 /* final */
# define ISCSI_CMD_HDR_FINAL_SHIFT 7
u8 hdr_first_byte ;
# define ISCSI_CMD_HDR_OPCODE_MASK 0x3F /* Opcode */
# define ISCSI_CMD_HDR_OPCODE_SHIFT 0
# define ISCSI_CMD_HDR_IMM_MASK 0x1 /* Immediate delivery */
# define ISCSI_CMD_HDR_IMM_SHIFT 6
# define ISCSI_CMD_HDR_RSRV1_MASK 0x1 /* first bit of iSCSI PDU header */
# define ISCSI_CMD_HDR_RSRV1_SHIFT 7
__le32 hdr_second_dword ;
# define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair lun /* Logical Unit Number. [constant, initialized] */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */ ;
__le32 cmd_sn /* CmdSn. [constant, initialized] */ ;
__le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */ ;
__le32 cdb [ 4 ] /* CDB. [constant, initialized] */ ;
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} ;
/*
* iSCSI Command PDU header with Extended CDB ( Initiator Mode )
*/
struct iscsi_ext_cdb_cmd_hdr
{
__le16 reserved1 /* reserved */ ;
u8 flags_attr ;
# define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK 0x7 /* attributes */
# define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT 0
# define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK 0x3 /* reserved */
# define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT 3
# define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK 0x1 /* write */
# define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT 5
# define ISCSI_EXT_CDB_CMD_HDR_READ_MASK 0x1 /* read */
# define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT 6
# define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK 0x1 /* final */
# define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT 7
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK 0xFF /* The Extended CDB size in bytes. Maximum Extended CDB size supported is CDB 64B. */
# define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT 24
struct regpair lun /* Logical Unit Number. [constant, initialized] */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */ ;
__le32 cmd_sn /* CmdSn. [constant, initialized] */ ;
__le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */ ;
struct scsi_sge cdb_sge /* Extended CDBs dedicated SGE */ ;
} ;
/*
* iSCSI login request PDU header
*/
struct iscsi_login_req_hdr
{
u8 version_min /* Version-min */ ;
u8 version_max /* Version-max */ ;
u8 flags_attr ;
# define ISCSI_LOGIN_REQ_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */
# define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT 0
# define ISCSI_LOGIN_REQ_HDR_CSG_MASK 0x3 /* Current stage (CSG) */
# define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT 2
# define ISCSI_LOGIN_REQ_HDR_RSRV_MASK 0x3 /* reserved */
# define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT 4
# define ISCSI_LOGIN_REQ_HDR_C_MASK 0x1 /* C (Continue) bit */
# define ISCSI_LOGIN_REQ_HDR_C_SHIFT 6
# define ISCSI_LOGIN_REQ_HDR_T_MASK 0x1 /* T (Transit) bit */
# define ISCSI_LOGIN_REQ_HDR_T_SHIFT 7
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24
__le32 isid_tabc /* Session identifier high double word [constant, initialized] */ ;
__le16 tsih /* TSIH */ ;
__le16 isid_d /* Session identifier low word [constant, initialized] */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le16 reserved1 ;
__le16 cid /* Unique Connection ID within the session [constant, initialized] */ ;
__le32 cmd_sn /* CmdSn. [constant, initialized] */ ;
__le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */ ;
__le32 reserved2 [ 4 ] ;
} ;
/*
* iSCSI logout request PDU header
*/
struct iscsi_logout_req_hdr
{
__le16 reserved0 /* reserved */ ;
u8 reason_code /* Reason Code */ ;
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 reserved1 ;
__le32 reserved2 [ 2 ] /* Reserved */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le16 reserved3 /* Reserved */ ;
__le16 cid /* Unique Connection ID within the session [constant, initialized] */ ;
__le32 cmd_sn /* CmdSn. [constant, initialized] */ ;
__le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */ ;
__le32 reserved4 [ 4 ] /* Reserved */ ;
} ;
/*
* iSCSI Data - out PDU header
*/
struct iscsi_data_out_hdr
{
__le16 reserved1 /* reserved */ ;
u8 flags_attr ;
# define ISCSI_DATA_OUT_HDR_RSRV_MASK 0x7F /* reserved */
# define ISCSI_DATA_OUT_HDR_RSRV_SHIFT 0
# define ISCSI_DATA_OUT_HDR_FINAL_MASK 0x1 /* final */
# define ISCSI_DATA_OUT_HDR_FINAL_SHIFT 7
u8 opcode /* opcode */ ;
__le32 reserved2 /* reserved */ ;
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant) */ ;
__le32 ttt /* Target Transfer Tag (from R2T) */ ;
__le32 reserved3 /* resrved */ ;
__le32 exp_stat_sn /* Expected StatSn */ ;
__le32 reserved4 /* resrved */ ;
__le32 data_sn /* DataSN - PDU index in sequnece */ ;
__le32 buffer_offset /* Buffer Offset - offset in task */ ;
__le32 reserved5 /* resrved */ ;
} ;
/*
* iSCSI Data - in PDU header
*/
struct iscsi_data_in_hdr
{
u8 status_rsvd /* Status or reserved */ ;
u8 reserved1 /* reserved */ ;
u8 flags ;
# define ISCSI_DATA_IN_HDR_STATUS_MASK 0x1 /* Status */
# define ISCSI_DATA_IN_HDR_STATUS_SHIFT 0
# define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK 0x1 /* Residual Underflow */
# define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1
# define ISCSI_DATA_IN_HDR_OVERFLOW_MASK 0x1 /* Residual Overflow */
# define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT 2
# define ISCSI_DATA_IN_HDR_RSRV_MASK 0x7 /* reserved - 0 */
# define ISCSI_DATA_IN_HDR_RSRV_SHIFT 3
# define ISCSI_DATA_IN_HDR_ACK_MASK 0x1 /* Acknowledge */
# define ISCSI_DATA_IN_HDR_ACK_SHIFT 6
# define ISCSI_DATA_IN_HDR_FINAL_MASK 0x1 /* final */
# define ISCSI_DATA_IN_HDR_FINAL_SHIFT 7
u8 opcode /* opcode */ ;
__le32 reserved2 /* reserved */ ;
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant) */ ;
__le32 ttt /* Target Transfer Tag (from R2T) */ ;
__le32 stat_sn /* StatSN or reserved */ ;
__le32 exp_cmd_sn /* Expected CmdSn */ ;
__le32 max_cmd_sn /* MaxCmdSn */ ;
__le32 data_sn /* DataSN - PDU index in sequnece */ ;
__le32 buffer_offset /* Buffer Offset - offset in task */ ;
__le32 residual_count /* Residual Count */ ;
} ;
/*
* iSCSI R2T PDU header
*/
struct iscsi_r2t_hdr
{
u8 reserved0 [ 3 ] /* reserved */ ;
u8 opcode /* opcode */ ;
__le32 reserved2 /* reserved */ ;
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag */ ;
__le32 ttt /* Target Transfer Tag */ ;
__le32 stat_sn /* stat sn */ ;
__le32 exp_cmd_sn /* Expected CmdSn */ ;
__le32 max_cmd_sn /* Max CmdSn */ ;
__le32 r2t_sn /* DataSN - PDU index in sequnece */ ;
__le32 buffer_offset /* Buffer Offset - offset in task */ ;
__le32 desired_data_trns_len /* Desired data trnsfer len */ ;
} ;
/*
* iSCSI NOP - out PDU header
*/
struct iscsi_nop_out_hdr
{
__le16 reserved1 /* reserved */ ;
u8 flags_attr ;
# define ISCSI_NOP_OUT_HDR_RSRV_MASK 0x7F /* reserved */
# define ISCSI_NOP_OUT_HDR_RSRV_SHIFT 0
# define ISCSI_NOP_OUT_HDR_CONST1_MASK 0x1 /* const1 */
# define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7
u8 opcode /* opcode */ ;
__le32 reserved2 /* reserved */ ;
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant) */ ;
__le32 ttt /* Target Transfer Tag (from R2T) */ ;
__le32 cmd_sn /* CmdSN */ ;
__le32 exp_stat_sn /* Expected StatSn */ ;
__le32 reserved3 /* reserved */ ;
__le32 reserved4 /* reserved */ ;
__le32 reserved5 /* reserved */ ;
__le32 reserved6 /* reserved */ ;
} ;
/*
* iSCSI NOP - in PDU header
*/
struct iscsi_nop_in_hdr
{
__le16 reserved0 /* reserved */ ;
u8 flags_attr ;
# define ISCSI_NOP_IN_HDR_RSRV_MASK 0x7F /* reserved */
# define ISCSI_NOP_IN_HDR_RSRV_SHIFT 0
# define ISCSI_NOP_IN_HDR_CONST1_MASK 0x1 /* const1 */
# define ISCSI_NOP_IN_HDR_CONST1_SHIFT 7
u8 opcode /* opcode */ ;
__le32 hdr_second_dword ;
# define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant) */ ;
__le32 ttt /* Target Transfer Tag */ ;
__le32 stat_sn /* stat_sn */ ;
__le32 exp_cmd_sn /* exp_cmd_sn */ ;
__le32 max_cmd_sn /* max_cmd_sn */ ;
__le32 reserved5 /* reserved */ ;
__le32 reserved6 /* reserved */ ;
__le32 reserved7 /* reserved */ ;
} ;
/*
* iSCSI Login Response PDU header
*/
struct iscsi_login_response_hdr
{
u8 version_active /* Version-active */ ;
u8 version_max /* Version-max */ ;
u8 flags_attr ;
# define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */
# define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT 0
# define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK 0x3 /* Current stage (CSG) */
# define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT 2
# define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK 0x3 /* reserved */
# define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT 4
# define ISCSI_LOGIN_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */
# define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT 6
# define ISCSI_LOGIN_RESPONSE_HDR_T_MASK 0x1 /* T (Transit) bit */
# define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT 7
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
__le32 isid_tabc /* Session identifier high double word [constant, initialized] */ ;
__le16 tsih /* TSIH */ ;
__le16 isid_d /* Session identifier low word [constant, initialized] */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 reserved1 ;
__le32 stat_sn /* CmdSn. [constant, initialized] */ ;
__le32 exp_cmd_sn /* various fields for middle-path PDU. [constant, initialized] */ ;
__le32 max_cmd_sn /* max_cmd_sn */ ;
__le16 reserved2 ;
u8 status_detail /* status_detail */ ;
u8 status_class /* status_class */ ;
__le32 reserved4 [ 2 ] ;
} ;
/*
* iSCSI Logout Response PDU header
*/
struct iscsi_logout_response_hdr
{
u8 reserved1 /* reserved */ ;
u8 response /* response */ ;
u8 flags /* flags and attributes */ ;
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
__le32 reserved2 [ 2 ] /* Reserved */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 reserved3 /* Reserved */ ;
__le32 stat_sn /* CmdSN */ ;
__le32 exp_cmd_sn /* Expected StatSn */ ;
__le32 max_cmd_sn /* CmdSN */ ;
__le32 reserved4 /* Reserved */ ;
__le16 time_2_retain /* Time to Retain */ ;
__le16 time_2_wait /* Time to wait */ ;
__le32 reserved5 [ 1 ] /* Reserved */ ;
} ;
/*
* iSCSI Text Request PDU header
*/
struct iscsi_text_request_hdr
{
__le16 reserved0 /* reserved */ ;
u8 flags_attr ;
# define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK 0x3F /* reserved */
# define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT 0
# define ISCSI_TEXT_REQUEST_HDR_C_MASK 0x1 /* C (Continue) bit */
# define ISCSI_TEXT_REQUEST_HDR_C_SHIFT 6
# define ISCSI_TEXT_REQUEST_HDR_F_MASK 0x1 /* F (Final) bit */
# define ISCSI_TEXT_REQUEST_HDR_F_SHIFT 7
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 ttt /* Referenced Task Tag or 0xffffffff */ ;
__le32 cmd_sn /* cmd_sn */ ;
__le32 exp_stat_sn /* exp_stat_sn */ ;
__le32 reserved4 [ 4 ] /* Reserved */ ;
} ;
/*
* iSCSI Text Response PDU header
*/
struct iscsi_text_response_hdr
{
__le16 reserved1 /* reserved */ ;
u8 flags ;
# define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK 0x3F /* reserved */
# define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT 0
# define ISCSI_TEXT_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */
# define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT 6
# define ISCSI_TEXT_RESPONSE_HDR_F_MASK 0x1 /* F (Final) bit */
# define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT 7
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 ttt /* Target Task Tag */ ;
__le32 stat_sn /* CmdSN */ ;
__le32 exp_cmd_sn /* Expected StatSn */ ;
__le32 max_cmd_sn /* CmdSN */ ;
__le32 reserved4 [ 3 ] /* Reserved */ ;
} ;
/*
* iSCSI TMF Request PDU header
*/
struct iscsi_tmf_request_hdr
{
__le16 reserved0 /* reserved */ ;
u8 function /* function */ ;
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 rtt /* Referenced Task Tag or 0xffffffff */ ;
__le32 cmd_sn /* cmd_sn */ ;
__le32 exp_stat_sn /* exp_stat_sn */ ;
__le32 ref_cmd_sn /* ref_cmd_sn */ ;
__le32 exp_data_sn /* exp_data_sn */ ;
__le32 reserved4 [ 2 ] /* Reserved */ ;
} ;
struct iscsi_tmf_response_hdr
{
u8 reserved2 /* reserved2 */ ;
u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */ ;
u8 hdr_flags /* Flags field of ISCSI header */ ;
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair reserved0 ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 reserved1 /* Reserved */ ;
__le32 stat_sn /* stat_sn */ ;
__le32 exp_cmd_sn /* exp_cmd_sn */ ;
__le32 max_cmd_sn /* max_cmd_sn */ ;
__le32 reserved4 [ 3 ] /* Reserved */ ;
} ;
/*
* iSCSI Response PDU header
*/
struct iscsi_response_hdr
{
u8 hdr_status /* Status field of ISCSI header */ ;
u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */ ;
u8 hdr_flags /* Flags field of ISCSI header */ ;
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair lun /* Logical Unit Number */ ;
__le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */ ;
__le32 snack_tag /* Currently ERL>0 is not supported */ ;
__le32 stat_sn /* CmdSN */ ;
__le32 exp_cmd_sn /* Expected StatSn */ ;
__le32 max_cmd_sn /* CmdSN */ ;
__le32 exp_data_sn /* exp_data_sn */ ;
__le32 bi_residual_count /* bi residual count */ ;
__le32 residual_count /* residual count */ ;
} ;
/*
* iSCSI Reject PDU header
*/
struct iscsi_reject_hdr
{
u8 reserved4 /* Reserved */ ;
u8 hdr_reason /* The reject reason */ ;
u8 hdr_flags /* Flags field of ISCSI header */ ;
u8 opcode /* opcode. [constant, initialized] */ ;
__le32 hdr_second_dword ;
# define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair reserved0 ;
__le32 all_ones ;
__le32 reserved2 ;
__le32 stat_sn /* stat_sn */ ;
__le32 exp_cmd_sn /* exp_cmd_sn */ ;
__le32 max_cmd_sn /* max_cmd_sn */ ;
__le32 data_sn /* data_sn */ ;
__le32 reserved3 [ 2 ] /* reserved3 */ ;
} ;
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/*
* iSCSI Asynchronous Message PDU header
*/
struct iscsi_async_msg_hdr
{
__le16 reserved0 /* reserved */ ;
u8 flags_attr ;
# define ISCSI_ASYNC_MSG_HDR_RSRV_MASK 0x7F /* reserved */
# define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT 0
# define ISCSI_ASYNC_MSG_HDR_CONST1_MASK 0x1 /* const1 */
# define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT 7
u8 opcode /* opcode */ ;
__le32 hdr_second_dword ;
# define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
# define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT 0
# define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
# define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24
struct regpair lun /* Logical Unit Number */ ;
__le32 all_ones /* should be 0xffffffff */ ;
__le32 reserved1 /* reserved */ ;
__le32 stat_sn /* stat_sn */ ;
__le32 exp_cmd_sn /* exp_cmd_sn */ ;
__le32 max_cmd_sn /* max_cmd_sn */ ;
__le16 param1_rsrv /* Parameter1 or Reserved */ ;
u8 async_vcode /* AsuncVCode */ ;
u8 async_event /* AsyncEvent */ ;
__le16 param3_rsrv /* Parameter3 or Reserved */ ;
__le16 param2_rsrv /* Parameter2 or Reserved */ ;
__le32 reserved7 /* reserved */ ;
} ;
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/*
* PDU header part of Ystorm task context
*/
union iscsi_task_hdr
{
struct iscsi_common_hdr common /* Command PDU header */ ;
struct data_hdr data /* Command PDU header */ ;
struct iscsi_cmd_hdr cmd /* Command PDU header */ ;
struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd /* Command PDU header with extended CDB - Initiator Mode */ ;
struct iscsi_login_req_hdr login_req /* Login request PDU header */ ;
struct iscsi_logout_req_hdr logout_req /* Logout request PDU header */ ;
struct iscsi_data_out_hdr data_out /* Data-out PDU header */ ;
struct iscsi_data_in_hdr data_in /* Data-in PDU header */ ;
struct iscsi_r2t_hdr r2t /* R2T PDU header */ ;
struct iscsi_nop_out_hdr nop_out /* NOP-out PDU header */ ;
struct iscsi_nop_in_hdr nop_in /* NOP-in PDU header */ ;
struct iscsi_login_response_hdr login_response /* Login response PDU header */ ;
struct iscsi_logout_response_hdr logout_response /* Logout response PDU header */ ;
struct iscsi_text_request_hdr text_request /* Text request PDU header */ ;
struct iscsi_text_response_hdr text_response /* Text response PDU header */ ;
struct iscsi_tmf_request_hdr tmf_request /* TMF request PDU header */ ;
struct iscsi_tmf_response_hdr tmf_response /* TMF response PDU header */ ;
struct iscsi_response_hdr response /* Text response PDU header */ ;
struct iscsi_reject_hdr reject /* Reject PDU header */ ;
struct iscsi_async_msg_hdr async_msg /* Asynchronous Message PDU header */ ;
} ;
/*
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* The iscsi storm task context of Ystorm
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*/
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struct ystorm_iscsi_task_st_ctx
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{
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struct ystorm_iscsi_task_state state /* iSCSI task parameters and state */ ;
struct ystorm_iscsi_task_rxmit_opt rxmit_opt /* iSCSI retransmit optimizations parameters */ ;
union iscsi_task_hdr pdu_hdr /* PDU header - [constant initialized] */ ;
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} ;
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struct e4_ystorm_iscsi_task_ag_ctx
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{
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u8 reserved /* cdu_validation */ ;
u8 byte1 /* state */ ;
__le16 word0 /* icid */ ;
u8 flags0 ;
# define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
# define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
# define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
# define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
# define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
u8 flags1 ;
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
u8 flags2 ;
# define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
# define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
u8 byte2 /* byte2 */ ;
__le32 TTT /* reg0 */ ;
u8 byte3 /* byte3 */ ;
u8 byte4 /* byte4 */ ;
__le16 word1 /* word1 */ ;
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} ;
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struct e4_mstorm_iscsi_task_ag_ctx
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{
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u8 cdu_validation /* cdu_validation */ ;
u8 byte1 /* state */ ;
__le16 task_cid /* icid */ ;
u8 flags0 ;
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
# define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
# define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
# define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
# define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */
# 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 /* cf0 */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4
# define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
u8 flags2 ;
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
# define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
u8 byte2 /* byte2 */ ;
__le32 reg0 /* reg0 */ ;
u8 byte3 /* byte3 */ ;
u8 byte4 /* byte4 */ ;
__le16 word1 /* word1 */ ;
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} ;
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struct e4_ustorm_iscsi_task_ag_ctx
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{
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u8 reserved /* cdu_validation */ ;
u8 state /* state */ ;
__le16 icid /* icid */ ;
u8 flags0 ;
# define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
# define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
# define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
# define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
# define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
# define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
# define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */
# define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6
u8 flags1 ;
# define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */
# define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0
# define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */
# define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2
# define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
# define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4
# define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* cf4 */
# 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 /* cf0en */
# 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 /* cf1en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1
# define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2
# define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3
# define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */
# 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 /* rule0en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6
# define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */
# 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 /* rule3en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
# define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3
# define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* nibble1 */
# define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
__le32 dif_err_intervals /* reg0 */ ;
__le32 dif_error_1st_interval /* reg1 */ ;
__le32 rcv_cont_len /* reg2 */ ;
__le32 exp_cont_len /* reg3 */ ;
__le32 total_data_acked /* reg4 */ ;
__le32 exp_data_acked /* reg5 */ ;
u8 next_tid_valid /* byte2 */ ;
u8 byte3 /* byte3 */ ;
__le16 word1 /* word1 */ ;
__le16 next_tid /* word2 */ ;
__le16 word3 /* word3 */ ;
__le32 hdr_residual_count /* reg6 */ ;
__le32 exp_r2t_sn /* reg7 */ ;
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} ;
/*
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* The iscsi storm task context of Mstorm
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*/
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struct mstorm_iscsi_task_st_ctx
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{
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struct scsi_cached_sges data_desc /* Union of Data SGL / cached sge */ ;
struct scsi_sgl_params sgl_params ;
__le32 rem_task_size /* Remaining task size, used for placement verification */ ;
__le32 data_buffer_offset /* Buffer offset */ ;
u8 task_type /* Task type, (use: iscsi_task_type enum) */ ;
struct iscsi_dif_flags dif_flags /* sizes of host/peer protection intervals + protection log interval */ ;
__le16 dif_task_icid /* save tasks CID for validation - dif on immediate flow */ ;
struct regpair sense_db /* Pointer to sense data buffer */ ;
__le32 expected_itt /* ITT - for target mode validations */ ;
__le32 reserved1 /* reserved1 */ ;
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} ;
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struct iscsi_reg1
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{
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__le32 reg1_map ;
# define ISCSI_REG1_NUM_SGES_MASK 0xF /* Written to R2tQE */
# define ISCSI_REG1_NUM_SGES_SHIFT 0
# define ISCSI_REG1_RESERVED1_MASK 0xFFFFFFF /* reserved */
# define ISCSI_REG1_RESERVED1_SHIFT 4
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} ;
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struct tqe_opaque
{
__le16 opaque [ 2 ] /* TQe opaque */ ;
} ;
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/*
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* The iscsi storm task context of Ustorm
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*/
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struct ustorm_iscsi_task_st_ctx
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{
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__le32 rem_rcv_len /* Remaining data to be received in bytes. Used in validations */ ;
__le32 exp_data_transfer_len /* iSCSI Initiator - The size of the transmitted task, iSCSI Target - the size of the Rx continuation */ ;
__le32 exp_data_sn /* Expected data SN */ ;
struct regpair lun /* LUN */ ;
struct iscsi_reg1 reg1 ;
u8 flags2 ;
# define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK 0x1 /* Initiator Mode - Mark AHS exist */
# 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 /* Dif flags (written to R2T WQE) */ ;
__le16 reserved3 ;
struct tqe_opaque tqe_opaque_list ;
__le32 reserved5 ;
__le32 reserved6 ;
__le32 reserved7 ;
u8 task_type /* Task Type */ ;
u8 error_flags ;
# define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK 0x1 /* Mark task with data digest error (1 bit) */
# define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT 0
# define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */
# 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 /* mark task cqe write (for cleanup flow) */
# define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT 0
# define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK 0x1 /* local completion bit */
# define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT 2
# define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK 0x1 /* write R2TQE from Q0 flow */
# define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT 3
# define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK 0x1 /* Mark total data acked or disabled */
# define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4
# define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK 0x1 /* Mark HQ scanned or disabled */
# define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT 5
# define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK 0x1 /* Mark HQ scanned or disabled */
# 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 /* Task CQ_RSS number 0.63 */ ;
} ;
/*
* iscsi task context
*/
struct e4_iscsi_task_context
{
struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */ ;
struct e4_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */ ;
struct regpair ystorm_ag_padding [ 2 ] /* padding */ ;
struct tdif_task_context tdif_context /* tdif context */ ;
struct e4_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */ ;
struct regpair mstorm_ag_padding [ 2 ] /* padding */ ;
struct e4_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */ ;
struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */ ;
struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */ ;
struct rdif_task_context rdif_context /* rdif context */ ;
} ;
struct e5_ystorm_iscsi_task_ag_ctx
{
u8 reserved /* cdu_validation */ ;
u8 byte1 /* state_and_core_id */ ;
__le16 word0 /* icid */ ;
u8 flags0 ;
# define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
# define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
# define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
# define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
# define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
u8 flags1 ;
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
u8 flags2 ;
# define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
u8 flags3 ;
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit5 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */
# define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7
__le32 TTT /* reg0 */ ;
u8 byte2 /* byte2 */ ;
u8 byte3 /* byte3 */ ;
u8 byte4 /* byte4 */ ;
u8 e4_reserved7 /* byte5 */ ;
} ;
struct e5_mstorm_iscsi_task_ag_ctx
{
u8 cdu_validation /* cdu_validation */ ;
u8 byte1 /* state_and_core_id */ ;
__le16 task_cid /* icid */ ;
u8 flags0 ;
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
# define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
# define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
# define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
# define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7
u8 flags1 ;
# define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4
# define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
u8 flags2 ;
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
u8 flags3 ;
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit4 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */
# define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7
__le32 reg0 /* reg0 */ ;
u8 byte2 /* byte2 */ ;
u8 byte3 /* byte3 */ ;
u8 byte4 /* byte4 */ ;
u8 e4_reserved7 /* byte5 */ ;
} ;
struct e5_ustorm_iscsi_task_ag_ctx
{
u8 reserved /* cdu_validation */ ;
u8 state_and_core_id /* state_and_core_id */ ;
__le16 icid /* icid */ ;
u8 flags0 ;
# define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
# define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
# define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
# define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
# define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
# define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
# define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */
# define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6
u8 flags1 ;
# define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */
# define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0
# define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */
# define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2
# define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
# define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4
# define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* dif_error_cf */
# define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
u8 flags2 ;
# define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0
# define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1
# define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2
# define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3
# define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
# define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6
# define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7
u8 flags3 ;
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit2 */
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 4
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x1 /* bit3 */
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 5
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x1 /* bit4 */
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 6
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* rule7en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 7
u8 flags4 ;
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x3 /* cf5 */
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 0
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* cf5en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 2
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_MASK 0x1 /* rule8en */
# define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_SHIFT 3
# define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* dif_error_type */
# define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
u8 next_tid_valid /* byte2 */ ;
u8 byte3 /* byte3 */ ;
u8 e4_reserved8 /* byte4 */ ;
__le32 dif_err_intervals /* dif_err_intervals */ ;
__le32 dif_error_1st_interval /* dif_error_1st_interval */ ;
__le32 rcv_cont_len /* reg2 */ ;
__le32 exp_cont_len /* reg3 */ ;
__le32 total_data_acked /* reg4 */ ;
__le32 exp_data_acked /* reg5 */ ;
__le16 word1 /* word1 */ ;
__le16 next_tid /* word2 */ ;
__le32 hdr_residual_count /* reg6 */ ;
__le32 exp_r2t_sn /* reg7 */ ;
} ;
/*
* iscsi task context
*/
struct e5_iscsi_task_context
{
struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */ ;
struct e5_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */ ;
struct regpair ystorm_ag_padding [ 2 ] /* padding */ ;
struct tdif_task_context tdif_context /* tdif context */ ;
struct e5_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */ ;
struct regpair mstorm_ag_padding [ 2 ] /* padding */ ;
struct e5_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */ ;
struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */ ;
struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */ ;
struct rdif_task_context rdif_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 /* PBL SQ pointer */ ;
struct regpair r2tq_pbl_addr /* PBL R2TQ pointer */ ;
struct regpair xhq_pbl_addr /* PBL XHQ pointer */ ;
struct regpair uhq_pbl_addr /* PBL UHQ pointer */ ;
__le32 initial_ack /* Initial ack, received from TCP */ ;
__le16 physical_q0 /* Physical QM queue to be tied to logical Q0 */ ;
__le16 physical_q1 /* Physical QM queue to be tied to logical Q1 */ ;
u8 flags ;
# define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_MASK 0x1 /* TCP connect/terminate option. 0 - TCP on host (option-1); 1 - TCP on chip (option-2). */
# define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0
# define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK 0x1 /* iSCSI connect mode: 0-iSCSI Initiator, 1-iSCSI Target */
# define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT 1
# define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK 0x1 /* Restricted mode: 0 - un-restricted (deviating from the RFC), 1 - restricted (according to the RFC) */
# define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2
# define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK 0x1F /* reserved */
# define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT 3
u8 pbl_page_size_log /* Page size with PBEs log; Page Size = 2^(page_size_log+12) */ ;
u8 pbe_page_size_log /* PBE page size with log; Page Size = 2^(page_size_log+12) */ ;
u8 default_cq /* Default CQ used to write unsolicited data */ ;
__le32 stat_sn /* StatSn for Target Mode only: the first Login Response StatSn value for Target mode */ ;
} ;
/*
* spe message header
*/
struct iscsi_slow_path_hdr
{
u8 op_code /* iscsi bus-drv message opcode */ ;
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 /* protocol layer (L2,L3,L4,L5) */
# 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 /* spe message header. */ ;
__le16 conn_id /* ISCSI Connection ID. (MOTI_COHEN : draft for DrvSim sake) */ ;
__le32 fw_cid /* Context ID (cid) of the connection. (MOTI_COHEN : draft for DrvSim sake) */ ;
u8 flags ;
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK 0x1 /* Is header digest enabled */
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT 0
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK 0x1 /* Is data digest enabled */
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT 1
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK 0x1 /* Initial R2T */
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT 2
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK 0x1 /* Immediate data */
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK 0x1 /* 0 - 512B, 1 - 4K */
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK 0x1 /* 0 - no DIF, 1 - could be enabled per task */
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_MASK 0x1 /* Support DIF on immediate, 1-Yes, 0-No */
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_SHIFT 6
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_MASK 0x1 /* valid only if dif_on_imm_en=1 Does this connection has dif configuration per Lun or Default dif configuration */
# define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_SHIFT 7
u8 reserved0 [ 3 ] ;
__le32 max_seq_size /* Maximum sequence size. Valid for TX and RX */ ;
__le32 max_send_pdu_length /* Maximum PDU size. Valid for the TX */ ;
__le32 max_recv_pdu_length /* Maximum PDU size. Valid for the RX */ ;
__le32 first_seq_length /* Initial sequence length */ ;
__le32 exp_stat_sn /* ExpStatSn - Option1 Only */ ;
union dif_configuration_params dif_on_imme_params /* dif on immmediate params - Target mode Only */ ;
} ;
/*
* iSCSI CQ element
*/
struct iscsi_cqe_common
{
__le16 conn_id /* Drivers connection Id */ ;
u8 cqe_type /* Indicates CQE type */ ;
union cqe_error_status error_bitmap /* CQE error status */ ;
__le32 reserved [ 3 ] ;
union iscsi_task_hdr iscsi_hdr /* iscsi header union */ ;
} ;
/*
* iSCSI CQ element
*/
struct iscsi_cqe_solicited
{
__le16 conn_id /* Drivers connection Id */ ;
u8 cqe_type /* Indicates CQE type */ ;
union cqe_error_status error_bitmap /* CQE error status */ ;
__le16 itid /* initiator itt (Initiator mode) or target ttt (Target mode) */ ;
u8 task_type /* Task type */ ;
u8 fw_dbg_field /* FW debug params */ ;
u8 caused_conn_err /* Equals 1 if this TID caused the connection error, otherwise equals 0. */ ;
u8 reserved0 [ 3 ] ;
__le32 reserved1 [ 1 ] ;
union iscsi_task_hdr iscsi_hdr /* iscsi header union */ ;
} ;
/*
* iSCSI CQ element
*/
struct iscsi_cqe_unsolicited
{
__le16 conn_id /* Drivers connection Id */ ;
u8 cqe_type /* Indicates CQE type */ ;
union cqe_error_status error_bitmap /* CQE error status */ ;
__le16 reserved0 /* Reserved */ ;
u8 reserved1 /* Reserved */ ;
u8 unsol_cqe_type /* Represent this unsolicited CQE position in a sequence of packets belonging to the same unsolicited PDU */ ;
__le16 rqe_opaque /* Relevant for Unsolicited CQE only: The opaque data of RQ BDQ */ ;
__le16 reserved2 [ 3 ] /* Reserved */ ;
union iscsi_task_hdr iscsi_hdr /* iscsi header union */ ;
} ;
/*
* iSCSI CQ element
*/
union iscsi_cqe
{
struct iscsi_cqe_common cqe_common /* Common CQE */ ;
struct iscsi_cqe_solicited cqe_solicited /* Solicited CQE */ ;
struct iscsi_cqe_unsolicited cqe_unsolicited /* Unsolicited CQE. relevant only when cqe_opcode == ISCSI_CQE_TYPE_UNSOLICITED */ ;
} ;
/*
* iSCSI CQE type
*/
enum iscsi_cqes_type
{
ISCSI_CQE_TYPE_SOLICITED = 1 /* iSCSI CQE with solicited data */ ,
ISCSI_CQE_TYPE_UNSOLICITED /* iSCSI CQE with unsolicited data */ ,
ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE /* iSCSI CQE with solicited with sense data */ ,
ISCSI_CQE_TYPE_TASK_CLEANUP /* iSCSI CQE task cleanup */ ,
ISCSI_CQE_TYPE_DUMMY /* iSCSI Dummy CQE */ ,
MAX_ISCSI_CQES_TYPE
} ;
/*
* iSCSI CQE type
*/
enum iscsi_cqe_unsolicited_type
{
ISCSI_CQE_UNSOLICITED_NONE /* iSCSI CQE with unsolicited data */ ,
ISCSI_CQE_UNSOLICITED_SINGLE /* iSCSI CQE with unsolicited data */ ,
ISCSI_CQE_UNSOLICITED_FIRST /* iSCSI CQE with unsolicited data */ ,
ISCSI_CQE_UNSOLICITED_MIDDLE /* iSCSI CQE with unsolicited data */ ,
ISCSI_CQE_UNSOLICITED_LAST /* iSCSI CQE with unsolicited data */ ,
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 /* Assert on Rx connection error */
# define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT 0
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK 0x1 /* Assert if TCP RESET arrived */
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT 1
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK 0x1 /* Assert if TCP FIN arrived */
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# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT 2
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK 0x1 /* Assert if cleanup flow */
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT 3
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK 0x1 /* Assert if REJECT PDU or ASYNC PDU arrived */
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK 0x1 /* Assert if NOP IN PDU or NOP OUT PDU arrived */
# define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT 5
# define ISCSI_DEBUG_MODES_ASSERT_IF_DATA_DIGEST_ERROR_MASK 0x1 /* Assert if data digest error */
# define ISCSI_DEBUG_MODES_ASSERT_IF_DATA_DIGEST_ERROR_SHIFT 6
# define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_ERROR_MASK 0x1 /* Assert if DIF error */
# define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_ERROR_SHIFT 7
} ;
/*
* iSCSI kernel completion queue IDs
*/
enum iscsi_eqe_opcode
{
ISCSI_EVENT_TYPE_INIT_FUNC = 0 /* iSCSI response after init Ramrod */ ,
ISCSI_EVENT_TYPE_DESTROY_FUNC /* iSCSI response after destroy Ramrod */ ,
ISCSI_EVENT_TYPE_OFFLOAD_CONN /* iSCSI response after option 2 offload Ramrod */ ,
ISCSI_EVENT_TYPE_UPDATE_CONN /* iSCSI response after update Ramrod */ ,
ISCSI_EVENT_TYPE_CLEAR_SQ /* iSCSI response after clear sq Ramrod */ ,
ISCSI_EVENT_TYPE_TERMINATE_CONN /* iSCSI response after termination Ramrod */ ,
ISCSI_EVENT_TYPE_MAC_UPDATE_CONN /* iSCSI response after MAC address update Ramrod */ ,
ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE /* iSCSI response after option 2 connect completed (A-syn EQE) */ ,
ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE /* iSCSI response after option 2 termination completed (A-syn EQE) */ ,
RESERVED9 /* reserved9 */ ,
ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES = 10 /* Never returned in EQE, used to separate Regular event types from Error event types */ ,
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ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD /* iSCSI abort response after TCP RST packet recieve (A-syn EQE) */ ,
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ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD /* iSCSI response after close receive (A-syn EQE) */ ,
ISCSI_EVENT_TYPE_ASYN_SYN_RCVD /* iSCSI response after TCP SYN+ACK packet receive (A-syn EQE) */ ,
ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME /* iSCSI error - tcp max retransmit time (A-syn EQE) */ ,
ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT /* iSCSI error - tcp max retransmit count (A-syn EQE) */ ,
ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT /* iSCSI error - tcp ka probes count (A-syn EQE) */ ,
ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2 /* iSCSI error - tcp fin wait 2 (A-syn EQE) */ ,
ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR /* iSCSI error response (A-syn EQE) */ ,
ISCSI_EVENT_TYPE_TCP_CONN_ERROR /* iSCSI error - tcp error (A-syn EQE) */ ,
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 connection error - Corrupted Task context */ ,
ISCSI_CONN_ERROR_TASK_NOT_VALID /* iSCSI connection error - The task is not valid */ ,
ISCSI_CONN_ERROR_RQ_RING_IS_FULL /* iSCSI connection error - RQ full */ ,
ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL /* iSCSI connection error - CMDQ full (Target only) */ ,
ISCSI_CONN_ERROR_HQE_CACHING_FAILED /* iSCSI connection error - HQ error */ ,
ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR /* iSCSI connection error - Header digest error */ ,
ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR /* iSCSI connection error - Local completion bit is not correct (A-syn EQE) */ ,
ISCSI_CONN_ERROR_DATA_OVERRUN /* iSCSI connection error - data overrun */ ,
ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR /* iSCSI connection error - out of sges in task context */ ,
ISCSI_CONN_ERROR_IP_OPTIONS_ERROR /* TCP connection error - IP option error */ ,
ISCSI_CONN_ERROR_PRS_ERRORS /* TCP connection error - error indication form parser */ ,
ISCSI_CONN_ERROR_CONNECT_INVALID_TCP_OPTION /* TCP connection error - tcp options error(option 2 only) */ ,
ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR /* TCP connection error - IP fragmentation error */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN /* iSCSI connection error - invalid AHS length (Target only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE /* iSCSI connection error - invalid AHS type (Target only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE /* iSCSI connection error - invalid ITT */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE /* iSCSI connection error - invalid TTT (Target only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE /* iSCSI connection error - PDU data_seg_len > max receive pdu size */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE /* iSCSI connection error - invalid PDU opcode */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE /* iSCSI connection error - invalid PDU opcode before update ramrod (Option 2 only) */ ,
ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL /* iSCSI connection error - NOPIN dsl > 0 and ITT = 0xffffffff (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA /* iSCSI connection error - R2T dsl > 0 (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN /* iSCSI connection error - DATA-SN error */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT /* iSCSI connection error - DATA-IN TTT error (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT /* iSCSI connection error - DATA-OUT ITT error (Target only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT /* iSCSI connection error - R2T TTT error (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET /* iSCSI connection error - R2T buffer offset error (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO /* iSCSI connection error - DATA PDU buffer offset error */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN /* iSCSI connection error - R2T SN error (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 /* iSCSI connection error - R2T desired data transfer length = 0 (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 /* iSCSI connection error - R2T desired data transfer length less then max burst size (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2 /* iSCSI connection error - R2T desired data transfer length + buffer offset > task size (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN /* iSCSI connection error - R2T unvalid LUN (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO /* iSCSI connection error - All data has been already received, however it is not the end of sequence (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE /* iSCSI connection error - S-bit and final bit = 1 (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN /* iSCSI connection error - STAT SN error (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO /* iSCSI connection error - TMF or LOGOUT PDUs dsl > 0 (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL /* iSCSI connection error - CMD PDU dsl>0 while immediate data is disabled (Target only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG /* iSCSI connection error - Data In overrun (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT /* iSCSI connection error - >1 outstanding R2T (Initiator only) */ ,
ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX /* iSCSI connection error - DIF Tx error + DIF error drop is enabled (Target only) */ ,
ISCSI_CONN_ERROR_SENSE_DATA_LENGTH /* iSCSI connection error - Sense data length > 256 (Initiator only) */ ,
ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR /* iSCSI connection error - Data placement error */ ,
ISCSI_CONN_ERROR_INVALID_ITT /* iSCSI connection error - Invalid ITT (Target Only) */ ,
ISCSI_ERROR_UNKNOWN /* iSCSI connection error */ ,
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 function init Ramrod */ ,
ISCSI_RAMROD_CMD_ID_DESTROY_FUNC = 2 /* iSCSI function destroy Ramrod */ ,
ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN = 3 /* iSCSI connection offload Ramrod */ ,
ISCSI_RAMROD_CMD_ID_UPDATE_CONN = 4 /* iSCSI connection update Ramrod */ ,
ISCSI_RAMROD_CMD_ID_TERMINATION_CONN = 5 /* iSCSI connection offload Ramrod. Command ID known only to FW and VBD */ ,
ISCSI_RAMROD_CMD_ID_CLEAR_SQ = 6 /* iSCSI connection clear-sq ramrod. */ ,
ISCSI_RAMROD_CMD_ID_MAC_UPDATE = 7 /* iSCSI connection update MAC address ramrod. */ ,
MAX_ISCSI_RAMROD_CMD_ID
} ;
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/*
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* ISCSI connection termination request
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*/
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struct iscsi_spe_conn_mac_update
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{
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struct iscsi_slow_path_hdr hdr /* spe message header. */ ;
__le16 conn_id /* ISCSI Connection ID. */ ;
__le32 fw_cid /* Context ID (cid) of the connection. */ ;
__le16 remote_mac_addr_lo /* new remote mac address lo */ ;
__le16 remote_mac_addr_mid /* new remote mac address mid */ ;
__le16 remote_mac_addr_hi /* new remote mac address hi */ ;
u8 reserved0 [ 2 ] ;
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} ;
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/*
* ISCSI and TCP connection ( Option 1 ) offload params passed by driver to FW in ISCSI offload ramrod
*/
struct iscsi_spe_conn_offload
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{
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struct iscsi_slow_path_hdr hdr /* spe message header. */ ;
__le16 conn_id /* ISCSI Connection ID. */ ;
__le32 fw_cid ;
struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */ ;
struct tcp_offload_params tcp /* iSCSI session offload params */ ;
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} ;
/*
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* ISCSI and TCP connection ( Option 2 ) offload params passed by driver to FW in ISCSI offload ramrod
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*/
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struct iscsi_spe_conn_offload_option2
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{
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struct iscsi_slow_path_hdr hdr /* spe message header. */ ;
__le16 conn_id /* ISCSI Connection ID. */ ;
__le32 fw_cid ;
struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */ ;
struct tcp_offload_params_opt2 tcp /* iSCSI session offload params */ ;
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} ;
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/*
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* ISCSI connection termination request
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*/
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struct iscsi_spe_conn_termination
{
struct iscsi_slow_path_hdr hdr /* spe message header. */ ;
__le16 conn_id /* ISCSI Connection ID. */ ;
__le32 fw_cid /* Context ID (cid) of the connection. */ ;
u8 abortive /* Mark termination as abort(reset) flow */ ;
u8 reserved0 [ 7 ] ;
struct regpair queue_cnts_addr /* cmdq and unsolicited counters termination params */ ;
struct regpair query_params_addr /* query_params_ptr */ ;
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} ;
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/*
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* iSCSI firmware function destroy parameters
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*/
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struct iscsi_spe_func_dstry
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{
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struct iscsi_slow_path_hdr hdr /* spe message header. */ ;
__le16 reserved0 ;
__le32 reserved1 ;
} ;
/*
* iSCSI firmware function init parameters
*/
struct iscsi_spe_func_init
{
struct iscsi_slow_path_hdr hdr /* spe message header. */ ;
__le16 half_way_close_timeout /* Half Way Close Timeout in Option 2 Close */ ;
u8 num_sq_pages_in_ring /* Number of entries in the SQ PBL. Provided by driver at function init spe */ ;
u8 num_r2tq_pages_in_ring /* Number of entries in the R2TQ PBL. Provided by driver at function init spe */ ;
u8 num_uhq_pages_in_ring /* Number of entries in the uHQ PBL (xHQ entries is X2). Provided by driver at function init spe */ ;
u8 ll2_rx_queue_id /* Queue ID of the Light-L2 Rx Queue */ ;
u8 ooo_enable /* Enable Out Of Order mode (enable = 1) */ ;
struct iscsi_debug_modes debug_mode /* Use iscsi_debug_mode flags */ ;
__le16 reserved1 ;
__le32 reserved2 ;
struct scsi_init_func_params func_params /* Common SCSI init params passed by driver to FW in function init ramrod */ ;
struct scsi_init_func_queues q_params /* SCSI RQ/CQ firmware function init parameters */ ;
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} ;
/*
* 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 ,
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ISCSI_TASK_TYPE_TARGET_IMM_W_DIF ,
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MAX_ISCSI_TASK_TYPE
} ;
/*
* iSCSI DesiredDataTransferLength / ttt union
*/
union iscsi_ttt_txlen_union
{
__le32 desired_tx_len /* desired data transfer length */ ;
__le32 ttt /* target transfer tag */ ;
} ;
/*
* iSCSI uHQ element
*/
struct iscsi_uhqe
{
__le32 reg1 ;
# define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK 0xFFFFF /* iSCSI payload (doesnt include padding or digest) or AHS length */
# define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT 0
# define ISCSI_UHQE_LOCAL_COMP_MASK 0x1 /* local compleiton flag */
# define ISCSI_UHQE_LOCAL_COMP_SHIFT 20
# define ISCSI_UHQE_TOGGLE_BIT_MASK 0x1 /* toggle bit to protect from uHQ full */
# define ISCSI_UHQE_TOGGLE_BIT_SHIFT 21
# define ISCSI_UHQE_PURE_PAYLOAD_MASK 0x1 /* indicates whether pdu_payload_len contains pure payload length. if not, pdu_payload_len is AHS length */
# define ISCSI_UHQE_PURE_PAYLOAD_SHIFT 22
# define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK 0x1 /* indicates login pdu */
# define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23
# define ISCSI_UHQE_TASK_ID_HI_MASK 0xFF /* most significant byte of task_id */
# define ISCSI_UHQE_TASK_ID_HI_SHIFT 24
__le32 reg2 ;
# define ISCSI_UHQE_BUFFER_OFFSET_MASK 0xFFFFFF /* absolute offset in task */
# define ISCSI_UHQE_BUFFER_OFFSET_SHIFT 0
# define ISCSI_UHQE_TASK_ID_LO_MASK 0xFF /* least significant byte of task_id */
# define ISCSI_UHQE_TASK_ID_LO_SHIFT 24
} ;
/*
* iSCSI WQ element
*/
struct iscsi_wqe
{
__le16 task_id /* The task identifier (itt) includes all the relevant information required for the task processing */ ;
u8 flags ;
# define ISCSI_WQE_WQE_TYPE_MASK 0x7 /* Wqe type [use iscsi_wqe_type] */
# define ISCSI_WQE_WQE_TYPE_SHIFT 0
# define ISCSI_WQE_NUM_SGES_MASK 0xF /* The driver will give a hint about sizes of SGEs for better credits evaluation at Xstorm */
# define ISCSI_WQE_NUM_SGES_SHIFT 3
# define ISCSI_WQE_RESPONSE_MASK 0x1 /* 1 if this Wqe triggers a response and advances stat_sn, 0 otherwise */
# define ISCSI_WQE_RESPONSE_SHIFT 7
struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */ ;
__le32 contlen_cdbsize ;
# define ISCSI_WQE_CONT_LEN_MASK 0xFFFFFF /* expected/desired data transfer length */
# define ISCSI_WQE_CONT_LEN_SHIFT 0
# define ISCSI_WQE_CDB_SIZE_MASK 0xFF /* Initiator mode only: equals SCSI command CDB size if extended CDB is used, otherwise equals zero. */
# define ISCSI_WQE_CDB_SIZE_SHIFT 24
} ;
/*
* iSCSI wqe type
*/
enum iscsi_wqe_type
{
ISCSI_WQE_TYPE_NORMAL /* iSCSI WQE type normal. excluding status bit in target mode. */ ,
ISCSI_WQE_TYPE_TASK_CLEANUP /* iSCSI WQE type task cleanup */ ,
ISCSI_WQE_TYPE_MIDDLE_PATH /* iSCSI WQE type middle path */ ,
ISCSI_WQE_TYPE_LOGIN /* iSCSI WQE type login */ ,
ISCSI_WQE_TYPE_FIRST_R2T_CONT /* iSCSI WQE type First Write Continuation (Target) */ ,
ISCSI_WQE_TYPE_NONFIRST_R2T_CONT /* iSCSI WQE type Non-First Write Continuation (Target) */ ,
ISCSI_WQE_TYPE_RESPONSE /* iSCSI WQE type SCSI response */ ,
MAX_ISCSI_WQE_TYPE
} ;
/*
* iSCSI xHQ element
*/
struct iscsi_xhqe
{
union iscsi_ttt_txlen_union ttt_or_txlen /* iSCSI DesiredDataTransferLength/ttt union */ ;
__le32 exp_stat_sn /* expected StatSn */ ;
struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */ ;
u8 total_ahs_length /* Initiator mode only: Total AHS Length. greater than zero if and only if PDU is SCSI command and CDB > 16 */ ;
u8 opcode /* Type opcode for command PDU */ ;
u8 flags ;
# define ISCSI_XHQE_FINAL_MASK 0x1 /* The Final(F) for this PDU */
# define ISCSI_XHQE_FINAL_SHIFT 0
# define ISCSI_XHQE_STATUS_BIT_MASK 0x1 /* Whether this PDU is Data-In PDU with status_bit = 1 */
# define ISCSI_XHQE_STATUS_BIT_SHIFT 1
# define ISCSI_XHQE_NUM_SGES_MASK 0xF /* If Predicted IO equals Min(8, number of SGEs in SGL), otherwise equals 0 */
# define ISCSI_XHQE_NUM_SGES_SHIFT 2
# define ISCSI_XHQE_RESERVED0_MASK 0x3 /* reserved */
# define ISCSI_XHQE_RESERVED0_SHIFT 6
union iscsi_seq_num seq_num /* R2T/DataSN sequence number */ ;
__le16 reserved1 ;
} ;
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/*
* Per PF iSCSI receive path statistics - mStorm RAM structure
*/
struct mstorm_iscsi_stats_drv
{
struct regpair iscsi_rx_dropped_PDUs_task_not_valid /* Number of Rx silently dropped PDUs due to task not valid */ ;
} ;
/*
* Per PF iSCSI transmit path statistics - pStorm RAM structure
*/
struct pstorm_iscsi_stats_drv
{
struct regpair iscsi_tx_bytes_cnt /* Counts the number of tx bytes that were transmitted */ ;
struct regpair iscsi_tx_packet_cnt /* Counts the number of tx packets that were transmitted */ ;
} ;
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/*
* Per PF iSCSI receive path statistics - tStorm RAM structure
*/
struct tstorm_iscsi_stats_drv
{
struct regpair iscsi_rx_bytes_cnt /* Counts the number of rx bytes that were received */ ;
struct regpair iscsi_rx_packet_cnt /* Counts the number of rx packets that were received */ ;
struct regpair iscsi_rx_new_ooo_isle_events_cnt /* Counts the number of new out-of-order isle event */ ;
__le32 iscsi_cmdq_threshold_cnt /* Counts the number of times elements in cmdQ reached threshold */ ;
__le32 iscsi_rq_threshold_cnt /* Counts the number of times elements in RQQ reached threshold */ ;
__le32 iscsi_immq_threshold_cnt /* Counts the number of times elements in immQ reached threshold */ ;
} ;
/*
* Per PF iSCSI receive path statistics - uStorm RAM structure
*/
struct ustorm_iscsi_stats_drv
{
struct regpair iscsi_rx_data_pdu_cnt /* Number of data PDUs that were received */ ;
struct regpair iscsi_rx_r2t_pdu_cnt /* Number of R2T PDUs that were received */ ;
struct regpair iscsi_rx_total_pdu_cnt /* Number of total PDUs that were received */ ;
} ;
/*
* Per PF iSCSI transmit path statistics - xStorm RAM structure
*/
struct xstorm_iscsi_stats_drv
{
struct regpair iscsi_tx_go_to_slow_start_event_cnt /* Number of times slow start event occurred */ ;
struct regpair iscsi_tx_fast_retransmit_event_cnt /* Number of times fast retransmit event occurred */ ;
} ;
/*
* Per PF iSCSI transmit path statistics - yStorm RAM structure
*/
struct ystorm_iscsi_stats_drv
{
struct regpair iscsi_tx_data_pdu_cnt /* Number of data PDUs that were transmitted */ ;
struct regpair iscsi_tx_r2t_pdu_cnt /* Number of R2T PDUs that were transmitted */ ;
struct regpair iscsi_tx_total_pdu_cnt /* Number of total PDUs that were transmitted */ ;
} ;
struct e4_tstorm_iscsi_task_ag_ctx
{
u8 byte0 /* cdu_validation */ ;
u8 byte1 /* state */ ;
__le16 word0 /* icid */ ;
u8 flags0 ;
# define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
u8 flags1 ;
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6
u8 flags2 ;
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6
u8 flags3 ;
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7
u8 flags4 ;
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
# define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
u8 byte2 /* byte2 */ ;
__le16 word1 /* word1 */ ;
__le32 reg0 /* reg0 */ ;
u8 byte3 /* byte3 */ ;
u8 byte4 /* byte4 */ ;
__le16 word2 /* word2 */ ;
__le16 word3 /* word3 */ ;
__le16 word4 /* word4 */ ;
__le32 reg1 /* reg1 */ ;
__le32 reg2 /* reg2 */ ;
} ;
struct e5_tstorm_iscsi_task_ag_ctx
{
u8 byte0 /* cdu_validation */ ;
u8 byte1 /* state_and_core_id */ ;
__le16 word0 /* icid */ ;
u8 flags0 ;
# define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
u8 flags1 ;
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6
u8 flags2 ;
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6
u8 flags3 ;
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7
u8 flags4 ;
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
# define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
u8 byte2 /* byte2 */ ;
__le16 word1 /* word1 */ ;
__le32 reg0 /* reg0 */ ;
u8 byte3 /* regpair0 */ ;
u8 byte4 /* byte4 */ ;
__le16 word2 /* word2 */ ;
__le16 word3 /* word3 */ ;
__le16 word4 /* word4 */ ;
__le32 reg1 /* regpair1 */ ;
__le32 reg2 /* reg2 */ ;
} ;
/*
* iSCSI doorbell data
*/
struct iscsi_db_data
{
u8 params ;
# define ISCSI_DB_DATA_DEST_MASK 0x3 /* destination of doorbell (use enum db_dest) */
# define ISCSI_DB_DATA_DEST_SHIFT 0
# define ISCSI_DB_DATA_AGG_CMD_MASK 0x3 /* aggregative command to CM (use enum db_agg_cmd_sel) */
# define ISCSI_DB_DATA_AGG_CMD_SHIFT 2
# define ISCSI_DB_DATA_BYPASS_EN_MASK 0x1 /* enable QM bypass */
# 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 /* aggregative value selection */
# define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6
u8 agg_flags /* bit for every DQ counter flags in CM context that DQ can increment */ ;
__le16 sq_prod ;
} ;
# endif /* __ISCSI_COMMON__ */
