507 lines
14 KiB
C
507 lines
14 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* zfcp device driver
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*
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* Interface to the FSF support functions.
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*
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* Copyright IBM Corp. 2002, 2020
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*/
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#ifndef FSF_H
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#define FSF_H
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#include <linux/pfn.h>
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#include <linux/scatterlist.h>
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#include <scsi/libfc.h>
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#define FSF_QTCB_CURRENT_VERSION 0x00000001
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/* FSF commands */
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#define FSF_QTCB_FCP_CMND 0x00000001
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#define FSF_QTCB_ABORT_FCP_CMND 0x00000002
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#define FSF_QTCB_OPEN_PORT_WITH_DID 0x00000005
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#define FSF_QTCB_OPEN_LUN 0x00000006
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#define FSF_QTCB_CLOSE_LUN 0x00000007
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#define FSF_QTCB_CLOSE_PORT 0x00000008
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#define FSF_QTCB_CLOSE_PHYSICAL_PORT 0x00000009
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#define FSF_QTCB_SEND_ELS 0x0000000B
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#define FSF_QTCB_SEND_GENERIC 0x0000000C
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#define FSF_QTCB_EXCHANGE_CONFIG_DATA 0x0000000D
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#define FSF_QTCB_EXCHANGE_PORT_DATA 0x0000000E
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#define FSF_QTCB_DOWNLOAD_CONTROL_FILE 0x00000012
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#define FSF_QTCB_UPLOAD_CONTROL_FILE 0x00000013
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/* FSF QTCB types */
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#define FSF_IO_COMMAND 0x00000001
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#define FSF_SUPPORT_COMMAND 0x00000002
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#define FSF_CONFIG_COMMAND 0x00000003
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#define FSF_PORT_COMMAND 0x00000004
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/* FSF protocol states */
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#define FSF_PROT_GOOD 0x00000001
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#define FSF_PROT_QTCB_VERSION_ERROR 0x00000010
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#define FSF_PROT_SEQ_NUMB_ERROR 0x00000020
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#define FSF_PROT_UNSUPP_QTCB_TYPE 0x00000040
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#define FSF_PROT_HOST_CONNECTION_INITIALIZING 0x00000080
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#define FSF_PROT_FSF_STATUS_PRESENTED 0x00000100
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#define FSF_PROT_DUPLICATE_REQUEST_ID 0x00000200
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#define FSF_PROT_LINK_DOWN 0x00000400
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#define FSF_PROT_REEST_QUEUE 0x00000800
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#define FSF_PROT_ERROR_STATE 0x01000000
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/* FSF states */
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#define FSF_GOOD 0x00000000
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#define FSF_PORT_ALREADY_OPEN 0x00000001
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#define FSF_LUN_ALREADY_OPEN 0x00000002
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#define FSF_PORT_HANDLE_NOT_VALID 0x00000003
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#define FSF_LUN_HANDLE_NOT_VALID 0x00000004
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#define FSF_HANDLE_MISMATCH 0x00000005
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#define FSF_SERVICE_CLASS_NOT_SUPPORTED 0x00000006
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#define FSF_FCPLUN_NOT_VALID 0x00000009
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#define FSF_LUN_SHARING_VIOLATION 0x00000012
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#define FSF_FCP_COMMAND_DOES_NOT_EXIST 0x00000022
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#define FSF_DIRECTION_INDICATOR_NOT_VALID 0x00000030
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#define FSF_CMND_LENGTH_NOT_VALID 0x00000033
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#define FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED 0x00000040
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#define FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED 0x00000041
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#define FSF_ELS_COMMAND_REJECTED 0x00000050
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#define FSF_GENERIC_COMMAND_REJECTED 0x00000051
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#define FSF_PORT_BOXED 0x00000059
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#define FSF_LUN_BOXED 0x0000005A
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#define FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE 0x0000005B
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#define FSF_PAYLOAD_SIZE_MISMATCH 0x00000060
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#define FSF_REQUEST_SIZE_TOO_LARGE 0x00000061
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#define FSF_RESPONSE_SIZE_TOO_LARGE 0x00000062
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#define FSF_SBAL_MISMATCH 0x00000063
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#define FSF_INCONSISTENT_PROT_DATA 0x00000070
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#define FSF_INVALID_PROT_PARM 0x00000071
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#define FSF_BLOCK_GUARD_CHECK_FAILURE 0x00000081
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#define FSF_APP_TAG_CHECK_FAILURE 0x00000082
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#define FSF_REF_TAG_CHECK_FAILURE 0x00000083
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#define FSF_SECURITY_ERROR 0x00000090
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#define FSF_ADAPTER_STATUS_AVAILABLE 0x000000AD
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#define FSF_FCP_RSP_AVAILABLE 0x000000AF
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#define FSF_UNKNOWN_COMMAND 0x000000E2
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#define FSF_UNKNOWN_OP_SUBTYPE 0x000000E3
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#define FSF_INVALID_COMMAND_OPTION 0x000000E5
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#define FSF_PROT_STATUS_QUAL_SIZE 16
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#define FSF_STATUS_QUALIFIER_SIZE 16
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/* FSF status qualifier, recommendations */
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#define FSF_SQ_NO_RECOM 0x00
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#define FSF_SQ_FCP_RSP_AVAILABLE 0x01
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#define FSF_SQ_RETRY_IF_POSSIBLE 0x02
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#define FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED 0x03
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#define FSF_SQ_INVOKE_LINK_TEST_PROCEDURE 0x04
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#define FSF_SQ_COMMAND_ABORTED 0x06
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#define FSF_SQ_NO_RETRY_POSSIBLE 0x07
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/* FSF status qualifier (most significant 4 bytes), local link down */
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#define FSF_PSQ_LINK_NO_LIGHT 0x00000004
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#define FSF_PSQ_LINK_WRAP_PLUG 0x00000008
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#define FSF_PSQ_LINK_NO_FCP 0x00000010
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#define FSF_PSQ_LINK_FIRMWARE_UPDATE 0x00000020
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#define FSF_PSQ_LINK_INVALID_WWPN 0x00000100
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#define FSF_PSQ_LINK_NO_NPIV_SUPPORT 0x00000200
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#define FSF_PSQ_LINK_NO_FCP_RESOURCES 0x00000400
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#define FSF_PSQ_LINK_NO_FABRIC_RESOURCES 0x00000800
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#define FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE 0x00001000
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#define FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED 0x00002000
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#define FSF_PSQ_LINK_MODE_TABLE_CURRUPTED 0x00004000
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#define FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT 0x00008000
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/* FSF status qualifier, security error */
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#define FSF_SQ_SECURITY_REQUIRED 0x00000001
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#define FSF_SQ_SECURITY_TIMEOUT 0x00000002
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#define FSF_SQ_SECURITY_KM_UNAVAILABLE 0x00000003
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#define FSF_SQ_SECURITY_RKM_UNAVAILABLE 0x00000004
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#define FSF_SQ_SECURITY_AUTH_FAILURE 0x00000005
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#define FSF_SQ_SECURITY_ENC_FAILURE 0x00000010
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/* payload size in status read buffer */
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#define FSF_STATUS_READ_PAYLOAD_SIZE 4032
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/* number of status read buffers that should be sent by ULP */
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#define FSF_STATUS_READS_RECOM 16
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/* status types in status read buffer */
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#define FSF_STATUS_READ_PORT_CLOSED 0x00000001
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#define FSF_STATUS_READ_INCOMING_ELS 0x00000002
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#define FSF_STATUS_READ_SENSE_DATA_AVAIL 0x00000003
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#define FSF_STATUS_READ_BIT_ERROR_THRESHOLD 0x00000004
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#define FSF_STATUS_READ_LINK_DOWN 0x00000005
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#define FSF_STATUS_READ_LINK_UP 0x00000006
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#define FSF_STATUS_READ_NOTIFICATION_LOST 0x00000009
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#define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C
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#define FSF_STATUS_READ_VERSION_CHANGE 0x0000000D
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/* status subtypes for link down */
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#define FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK 0x00000000
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#define FSF_STATUS_READ_SUB_FDISC_FAILED 0x00000001
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#define FSF_STATUS_READ_SUB_FIRMWARE_UPDATE 0x00000002
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/* status subtypes for unsolicited status notification lost */
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#define FSF_STATUS_READ_SUB_INCOMING_ELS 0x00000001
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#define FSF_STATUS_READ_SUB_VERSION_CHANGE 0x00000100
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/* status subtypes for version change */
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#define FSF_STATUS_READ_SUB_LIC_CHANGE 0x00000001
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/* topologie that is detected by the adapter */
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#define FSF_TOPO_P2P 0x00000001
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#define FSF_TOPO_FABRIC 0x00000002
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#define FSF_TOPO_AL 0x00000003
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/* data direction for FCP commands */
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#define FSF_DATADIR_WRITE 0x00000001
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#define FSF_DATADIR_READ 0x00000002
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#define FSF_DATADIR_CMND 0x00000004
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#define FSF_DATADIR_DIF_WRITE_INSERT 0x00000009
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#define FSF_DATADIR_DIF_READ_STRIP 0x0000000a
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#define FSF_DATADIR_DIF_WRITE_CONVERT 0x0000000b
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#define FSF_DATADIR_DIF_READ_CONVERT 0X0000000c
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/* data protection control flags */
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#define FSF_APP_TAG_CHECK_ENABLE 0x10
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/* fc service class */
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#define FSF_CLASS_3 0x00000003
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/* logging space behind QTCB */
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#define FSF_QTCB_LOG_SIZE 1024
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/* channel features */
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#define FSF_FEATURE_NOTIFICATION_LOST 0x00000008
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#define FSF_FEATURE_HBAAPI_MANAGEMENT 0x00000010
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#define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020
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#define FSF_FEATURE_UPDATE_ALERT 0x00000100
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#define FSF_FEATURE_MEASUREMENT_DATA 0x00000200
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#define FSF_FEATURE_REQUEST_SFP_DATA 0x00000200
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#define FSF_FEATURE_REPORT_SFP_DATA 0x00000800
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#define FSF_FEATURE_FC_SECURITY 0x00001000
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#define FSF_FEATURE_DIF_PROT_TYPE1 0x00010000
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#define FSF_FEATURE_DIX_PROT_TCPIP 0x00020000
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/* host connection features */
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#define FSF_FEATURE_NPIV_MODE 0x00000001
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/* option */
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#define FSF_OPEN_LUN_SUPPRESS_BOXING 0x00000001
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/* FC security algorithms */
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#define FSF_FC_SECURITY_AUTH 0x00000001
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#define FSF_FC_SECURITY_ENC_FCSP2 0x00000002
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#define FSF_FC_SECURITY_ENC_ERAS 0x00000004
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struct fsf_queue_designator {
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u8 cssid;
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u8 chpid;
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u8 hla;
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u8 ua;
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u32 res1;
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} __attribute__ ((packed));
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struct fsf_bit_error_payload {
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u32 res1;
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u32 link_failure_error_count;
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u32 loss_of_sync_error_count;
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u32 loss_of_signal_error_count;
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u32 primitive_sequence_error_count;
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u32 invalid_transmission_word_error_count;
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u32 crc_error_count;
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u32 primitive_sequence_event_timeout_count;
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u32 elastic_buffer_overrun_error_count;
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u32 fcal_arbitration_timeout_count;
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u32 advertised_receive_b2b_credit;
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u32 current_receive_b2b_credit;
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u32 advertised_transmit_b2b_credit;
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u32 current_transmit_b2b_credit;
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} __attribute__ ((packed));
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struct fsf_link_down_info {
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u32 error_code;
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u32 res1;
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u8 res2[2];
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u8 primary_status;
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u8 ioerr_code;
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u8 action_code;
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u8 reason_code;
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u8 explanation_code;
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u8 vendor_specific_code;
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} __attribute__ ((packed));
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struct fsf_version_change {
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u32 current_version;
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u32 previous_version;
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} __packed;
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struct fsf_status_read_buffer {
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u32 status_type;
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u32 status_subtype;
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u32 length;
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u32 res1;
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struct fsf_queue_designator queue_designator;
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u8 res2;
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u8 d_id[3];
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u32 class;
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u64 fcp_lun;
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u8 res3[24];
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union {
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u8 data[FSF_STATUS_READ_PAYLOAD_SIZE];
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u32 word[FSF_STATUS_READ_PAYLOAD_SIZE/sizeof(u32)];
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struct fsf_link_down_info link_down_info;
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struct fsf_bit_error_payload bit_error;
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struct fsf_version_change version_change;
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} payload;
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} __attribute__ ((packed));
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struct fsf_qual_version_error {
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u32 fsf_version;
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u32 res1[3];
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} __attribute__ ((packed));
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struct fsf_qual_sequence_error {
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u32 exp_req_seq_no;
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u32 res1[3];
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} __attribute__ ((packed));
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struct fsf_qual_latency_info {
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u32 channel_lat;
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u32 fabric_lat;
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u8 res1[8];
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} __attribute__ ((packed));
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union fsf_prot_status_qual {
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u32 word[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u32)];
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u64 doubleword[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u64)];
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struct fsf_qual_version_error version_error;
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struct fsf_qual_sequence_error sequence_error;
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struct fsf_link_down_info link_down_info;
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struct fsf_qual_latency_info latency_info;
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} __attribute__ ((packed));
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struct fsf_qtcb_prefix {
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u64 req_id;
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u32 qtcb_version;
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u32 ulp_info;
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u32 qtcb_type;
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u32 req_seq_no;
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u32 prot_status;
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union fsf_prot_status_qual prot_status_qual;
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u8 res1[20];
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} __attribute__ ((packed));
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struct fsf_statistics_info {
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u64 input_req;
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u64 output_req;
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u64 control_req;
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u64 input_mb;
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u64 output_mb;
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u64 seconds_act;
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} __attribute__ ((packed));
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union fsf_status_qual {
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u8 byte[FSF_STATUS_QUALIFIER_SIZE];
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u16 halfword[FSF_STATUS_QUALIFIER_SIZE / sizeof (u16)];
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u32 word[FSF_STATUS_QUALIFIER_SIZE / sizeof (u32)];
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u64 doubleword[FSF_STATUS_QUALIFIER_SIZE / sizeof(u64)];
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struct fsf_queue_designator fsf_queue_designator;
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struct fsf_link_down_info link_down_info;
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} __attribute__ ((packed));
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struct fsf_qtcb_header {
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u64 req_handle;
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u32 fsf_command;
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u32 res1;
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u32 port_handle;
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u32 lun_handle;
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u32 res2;
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u32 fsf_status;
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union fsf_status_qual fsf_status_qual;
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u8 res3[28];
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u16 log_start;
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u16 log_length;
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u8 res4[16];
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} __attribute__ ((packed));
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#define FSF_PLOGI_MIN_LEN 112
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#define FSF_FCP_CMND_SIZE 288
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#define FSF_FCP_RSP_SIZE 128
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struct fsf_qtcb_bottom_io {
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u32 data_direction;
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u32 service_class;
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u8 res1;
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u8 data_prot_flags;
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u16 app_tag_value;
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u32 ref_tag_value;
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u32 fcp_cmnd_length;
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u32 data_block_length;
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u32 prot_data_length;
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u8 res2[4];
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union {
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u8 byte[FSF_FCP_CMND_SIZE];
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struct fcp_cmnd iu;
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} fcp_cmnd;
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union {
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u8 byte[FSF_FCP_RSP_SIZE];
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struct fcp_resp_with_ext iu;
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} fcp_rsp;
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u8 res3[64];
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} __attribute__ ((packed));
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struct fsf_qtcb_bottom_support {
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u32 operation_subtype;
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u8 res1[13];
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u8 d_id[3];
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u32 option;
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u64 fcp_lun;
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u64 res2;
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u64 req_handle;
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u32 service_class;
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u8 res3[3];
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u8 timeout;
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u32 lun_access_info;
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u32 connection_info;
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u8 res4[176];
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u32 els1_length;
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u32 els2_length;
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u32 req_buf_length;
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u32 resp_buf_length;
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u8 els[256];
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} __attribute__ ((packed));
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#define ZFCP_FSF_TIMER_INT_MASK 0x3FFF
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struct fsf_qtcb_bottom_config {
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u32 lic_version;
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u32 feature_selection;
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u32 high_qtcb_version;
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u32 low_qtcb_version;
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u32 max_qtcb_size;
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u32 max_data_transfer_size;
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u32 adapter_features;
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u32 connection_features;
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u32 fc_topology;
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u32 fc_link_speed; /* one of ZFCP_FSF_PORTSPEED_* */
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u32 adapter_type;
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u8 res0;
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u8 peer_d_id[3];
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u16 status_read_buf_num;
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u16 timer_interval;
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u8 res2[9];
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u8 s_id[3];
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u8 nport_serv_param[128];
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u8 res3[8];
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u32 adapter_ports;
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u32 hardware_version;
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u8 serial_number[32];
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u8 plogi_payload[112];
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struct fsf_statistics_info stat_info;
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u8 res4[112];
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} __attribute__ ((packed));
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struct fsf_qtcb_bottom_port {
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u64 wwpn;
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u32 fc_port_id;
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u32 port_type;
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u32 port_state;
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u32 class_of_service; /* should be 0x00000006 for class 2 and 3 */
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u8 supported_fc4_types[32]; /* should be 0x00000100 for scsi fcp */
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u8 active_fc4_types[32];
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u32 supported_speed; /* any combination of ZFCP_FSF_PORTSPEED_* */
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u32 maximum_frame_size; /* fixed value of 2112 */
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u64 seconds_since_last_reset;
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u64 tx_frames;
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u64 tx_words;
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u64 rx_frames;
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u64 rx_words;
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u64 lip; /* 0 */
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u64 nos; /* currently 0 */
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u64 error_frames; /* currently 0 */
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u64 dumped_frames; /* currently 0 */
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u64 link_failure;
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u64 loss_of_sync;
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u64 loss_of_signal;
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u64 psp_error_counts;
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u64 invalid_tx_words;
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u64 invalid_crcs;
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u64 input_requests;
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u64 output_requests;
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u64 control_requests;
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u64 input_mb; /* where 1 MByte == 1.000.000 Bytes */
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u64 output_mb; /* where 1 MByte == 1.000.000 Bytes */
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u8 cp_util;
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u8 cb_util;
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u8 a_util;
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u8 res2;
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s16 temperature;
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u16 vcc;
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u16 tx_bias;
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u16 tx_power;
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u16 rx_power;
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union {
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u16 raw;
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struct {
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u16 fec_active :1;
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u16:7;
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u16 connector_type :2;
|
|
u16 sfp_invalid :1;
|
|
u16 optical_port :1;
|
|
u16 port_tx_type :4;
|
|
};
|
|
} sfp_flags;
|
|
u32 fc_security_algorithms;
|
|
u8 res3[236];
|
|
} __attribute__ ((packed));
|
|
|
|
union fsf_qtcb_bottom {
|
|
struct fsf_qtcb_bottom_io io;
|
|
struct fsf_qtcb_bottom_support support;
|
|
struct fsf_qtcb_bottom_config config;
|
|
struct fsf_qtcb_bottom_port port;
|
|
};
|
|
|
|
struct fsf_qtcb {
|
|
struct fsf_qtcb_prefix prefix;
|
|
struct fsf_qtcb_header header;
|
|
union fsf_qtcb_bottom bottom;
|
|
u8 log[FSF_QTCB_LOG_SIZE];
|
|
} __attribute__ ((packed));
|
|
|
|
struct zfcp_blk_drv_data {
|
|
#define ZFCP_BLK_DRV_DATA_MAGIC 0x1
|
|
u32 magic;
|
|
#define ZFCP_BLK_LAT_VALID 0x1
|
|
#define ZFCP_BLK_REQ_ERROR 0x2
|
|
u16 flags;
|
|
u8 inb_usage;
|
|
u8 outb_usage;
|
|
u64 channel_lat;
|
|
u64 fabric_lat;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* struct zfcp_fsf_ct_els - zfcp data for ct or els request
|
|
* @req: scatter-gather list for request, points to &zfcp_fc_req.sg_req or BSG
|
|
* @resp: scatter-gather list for response, points to &zfcp_fc_req.sg_rsp or BSG
|
|
* @handler: handler function (called for response to the request)
|
|
* @handler_data: data passed to handler function
|
|
* @port: Optional pointer to port for zfcp internal ELS (only test link ADISC)
|
|
* @status: used to pass error status to calling function
|
|
* @d_id: Destination ID of either open WKA port for CT or of D_ID for ELS
|
|
*/
|
|
struct zfcp_fsf_ct_els {
|
|
struct scatterlist *req;
|
|
struct scatterlist *resp;
|
|
void (*handler)(void *);
|
|
void *handler_data;
|
|
struct zfcp_port *port;
|
|
int status;
|
|
u32 d_id;
|
|
};
|
|
|
|
#endif /* FSF_H */
|