| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * zfcp device driver |
| * |
| * Interface to the FSF support functions. |
| * |
| * Copyright IBM Corp. 2002, 2018 |
| */ |
| |
| #ifndef FSF_H |
| #define FSF_H |
| |
| #include <linux/pfn.h> |
| #include <linux/scatterlist.h> |
| #include <scsi/libfc.h> |
| |
| #define FSF_QTCB_CURRENT_VERSION 0x00000001 |
| |
| /* FSF commands */ |
| #define FSF_QTCB_FCP_CMND 0x00000001 |
| #define FSF_QTCB_ABORT_FCP_CMND 0x00000002 |
| #define FSF_QTCB_OPEN_PORT_WITH_DID 0x00000005 |
| #define FSF_QTCB_OPEN_LUN 0x00000006 |
| #define FSF_QTCB_CLOSE_LUN 0x00000007 |
| #define FSF_QTCB_CLOSE_PORT 0x00000008 |
| #define FSF_QTCB_CLOSE_PHYSICAL_PORT 0x00000009 |
| #define FSF_QTCB_SEND_ELS 0x0000000B |
| #define FSF_QTCB_SEND_GENERIC 0x0000000C |
| #define FSF_QTCB_EXCHANGE_CONFIG_DATA 0x0000000D |
| #define FSF_QTCB_EXCHANGE_PORT_DATA 0x0000000E |
| #define FSF_QTCB_DOWNLOAD_CONTROL_FILE 0x00000012 |
| #define FSF_QTCB_UPLOAD_CONTROL_FILE 0x00000013 |
| |
| /* FSF QTCB types */ |
| #define FSF_IO_COMMAND 0x00000001 |
| #define FSF_SUPPORT_COMMAND 0x00000002 |
| #define FSF_CONFIG_COMMAND 0x00000003 |
| #define FSF_PORT_COMMAND 0x00000004 |
| |
| /* FSF protocol states */ |
| #define FSF_PROT_GOOD 0x00000001 |
| #define FSF_PROT_QTCB_VERSION_ERROR 0x00000010 |
| #define FSF_PROT_SEQ_NUMB_ERROR 0x00000020 |
| #define FSF_PROT_UNSUPP_QTCB_TYPE 0x00000040 |
| #define FSF_PROT_HOST_CONNECTION_INITIALIZING 0x00000080 |
| #define FSF_PROT_FSF_STATUS_PRESENTED 0x00000100 |
| #define FSF_PROT_DUPLICATE_REQUEST_ID 0x00000200 |
| #define FSF_PROT_LINK_DOWN 0x00000400 |
| #define FSF_PROT_REEST_QUEUE 0x00000800 |
| #define FSF_PROT_ERROR_STATE 0x01000000 |
| |
| /* FSF states */ |
| #define FSF_GOOD 0x00000000 |
| #define FSF_PORT_ALREADY_OPEN 0x00000001 |
| #define FSF_LUN_ALREADY_OPEN 0x00000002 |
| #define FSF_PORT_HANDLE_NOT_VALID 0x00000003 |
| #define FSF_LUN_HANDLE_NOT_VALID 0x00000004 |
| #define FSF_HANDLE_MISMATCH 0x00000005 |
| #define FSF_SERVICE_CLASS_NOT_SUPPORTED 0x00000006 |
| #define FSF_FCPLUN_NOT_VALID 0x00000009 |
| #define FSF_LUN_SHARING_VIOLATION 0x00000012 |
| #define FSF_FCP_COMMAND_DOES_NOT_EXIST 0x00000022 |
| #define FSF_DIRECTION_INDICATOR_NOT_VALID 0x00000030 |
| #define FSF_CMND_LENGTH_NOT_VALID 0x00000033 |
| #define FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED 0x00000040 |
| #define FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED 0x00000041 |
| #define FSF_ELS_COMMAND_REJECTED 0x00000050 |
| #define FSF_GENERIC_COMMAND_REJECTED 0x00000051 |
| #define FSF_PORT_BOXED 0x00000059 |
| #define FSF_LUN_BOXED 0x0000005A |
| #define FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE 0x0000005B |
| #define FSF_PAYLOAD_SIZE_MISMATCH 0x00000060 |
| #define FSF_REQUEST_SIZE_TOO_LARGE 0x00000061 |
| #define FSF_RESPONSE_SIZE_TOO_LARGE 0x00000062 |
| #define FSF_SBAL_MISMATCH 0x00000063 |
| #define FSF_INCONSISTENT_PROT_DATA 0x00000070 |
| #define FSF_INVALID_PROT_PARM 0x00000071 |
| #define FSF_BLOCK_GUARD_CHECK_FAILURE 0x00000081 |
| #define FSF_APP_TAG_CHECK_FAILURE 0x00000082 |
| #define FSF_REF_TAG_CHECK_FAILURE 0x00000083 |
| #define FSF_ADAPTER_STATUS_AVAILABLE 0x000000AD |
| #define FSF_FCP_RSP_AVAILABLE 0x000000AF |
| #define FSF_UNKNOWN_COMMAND 0x000000E2 |
| #define FSF_UNKNOWN_OP_SUBTYPE 0x000000E3 |
| #define FSF_INVALID_COMMAND_OPTION 0x000000E5 |
| |
| #define FSF_PROT_STATUS_QUAL_SIZE 16 |
| #define FSF_STATUS_QUALIFIER_SIZE 16 |
| |
| /* FSF status qualifier, recommendations */ |
| #define FSF_SQ_NO_RECOM 0x00 |
| #define FSF_SQ_FCP_RSP_AVAILABLE 0x01 |
| #define FSF_SQ_RETRY_IF_POSSIBLE 0x02 |
| #define FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED 0x03 |
| #define FSF_SQ_INVOKE_LINK_TEST_PROCEDURE 0x04 |
| #define FSF_SQ_COMMAND_ABORTED 0x06 |
| #define FSF_SQ_NO_RETRY_POSSIBLE 0x07 |
| |
| /* FSF status qualifier (most significant 4 bytes), local link down */ |
| #define FSF_PSQ_LINK_NO_LIGHT 0x00000004 |
| #define FSF_PSQ_LINK_WRAP_PLUG 0x00000008 |
| #define FSF_PSQ_LINK_NO_FCP 0x00000010 |
| #define FSF_PSQ_LINK_FIRMWARE_UPDATE 0x00000020 |
| #define FSF_PSQ_LINK_INVALID_WWPN 0x00000100 |
| #define FSF_PSQ_LINK_NO_NPIV_SUPPORT 0x00000200 |
| #define FSF_PSQ_LINK_NO_FCP_RESOURCES 0x00000400 |
| #define FSF_PSQ_LINK_NO_FABRIC_RESOURCES 0x00000800 |
| #define FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE 0x00001000 |
| #define FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED 0x00002000 |
| #define FSF_PSQ_LINK_MODE_TABLE_CURRUPTED 0x00004000 |
| #define FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT 0x00008000 |
| |
| /* payload size in status read buffer */ |
| #define FSF_STATUS_READ_PAYLOAD_SIZE 4032 |
| |
| /* number of status read buffers that should be sent by ULP */ |
| #define FSF_STATUS_READS_RECOM 16 |
| |
| /* status types in status read buffer */ |
| #define FSF_STATUS_READ_PORT_CLOSED 0x00000001 |
| #define FSF_STATUS_READ_INCOMING_ELS 0x00000002 |
| #define FSF_STATUS_READ_SENSE_DATA_AVAIL 0x00000003 |
| #define FSF_STATUS_READ_BIT_ERROR_THRESHOLD 0x00000004 |
| #define FSF_STATUS_READ_LINK_DOWN 0x00000005 |
| #define FSF_STATUS_READ_LINK_UP 0x00000006 |
| #define FSF_STATUS_READ_NOTIFICATION_LOST 0x00000009 |
| #define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C |
| |
| /* status subtypes for link down */ |
| #define FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK 0x00000000 |
| #define FSF_STATUS_READ_SUB_FDISC_FAILED 0x00000001 |
| #define FSF_STATUS_READ_SUB_FIRMWARE_UPDATE 0x00000002 |
| |
| /* status subtypes for unsolicited status notification lost */ |
| #define FSF_STATUS_READ_SUB_INCOMING_ELS 0x00000001 |
| |
| /* topologie that is detected by the adapter */ |
| #define FSF_TOPO_P2P 0x00000001 |
| #define FSF_TOPO_FABRIC 0x00000002 |
| #define FSF_TOPO_AL 0x00000003 |
| |
| /* data direction for FCP commands */ |
| #define FSF_DATADIR_WRITE 0x00000001 |
| #define FSF_DATADIR_READ 0x00000002 |
| #define FSF_DATADIR_CMND 0x00000004 |
| #define FSF_DATADIR_DIF_WRITE_INSERT 0x00000009 |
| #define FSF_DATADIR_DIF_READ_STRIP 0x0000000a |
| #define FSF_DATADIR_DIF_WRITE_CONVERT 0x0000000b |
| #define FSF_DATADIR_DIF_READ_CONVERT 0X0000000c |
| |
| /* data protection control flags */ |
| #define FSF_APP_TAG_CHECK_ENABLE 0x10 |
| |
| /* fc service class */ |
| #define FSF_CLASS_3 0x00000003 |
| |
| /* logging space behind QTCB */ |
| #define FSF_QTCB_LOG_SIZE 1024 |
| |
| /* channel features */ |
| #define FSF_FEATURE_NOTIFICATION_LOST 0x00000008 |
| #define FSF_FEATURE_HBAAPI_MANAGEMENT 0x00000010 |
| #define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020 |
| #define FSF_FEATURE_UPDATE_ALERT 0x00000100 |
| #define FSF_FEATURE_MEASUREMENT_DATA 0x00000200 |
| #define FSF_FEATURE_DIF_PROT_TYPE1 0x00010000 |
| #define FSF_FEATURE_DIX_PROT_TCPIP 0x00020000 |
| |
| /* host connection features */ |
| #define FSF_FEATURE_NPIV_MODE 0x00000001 |
| |
| /* option */ |
| #define FSF_OPEN_LUN_SUPPRESS_BOXING 0x00000001 |
| |
| struct fsf_queue_designator { |
| u8 cssid; |
| u8 chpid; |
| u8 hla; |
| u8 ua; |
| u32 res1; |
| } __attribute__ ((packed)); |
| |
| struct fsf_bit_error_payload { |
| u32 res1; |
| u32 link_failure_error_count; |
| u32 loss_of_sync_error_count; |
| u32 loss_of_signal_error_count; |
| u32 primitive_sequence_error_count; |
| u32 invalid_transmission_word_error_count; |
| u32 crc_error_count; |
| u32 primitive_sequence_event_timeout_count; |
| u32 elastic_buffer_overrun_error_count; |
| u32 fcal_arbitration_timeout_count; |
| u32 advertised_receive_b2b_credit; |
| u32 current_receive_b2b_credit; |
| u32 advertised_transmit_b2b_credit; |
| u32 current_transmit_b2b_credit; |
| } __attribute__ ((packed)); |
| |
| struct fsf_link_down_info { |
| u32 error_code; |
| u32 res1; |
| u8 res2[2]; |
| u8 primary_status; |
| u8 ioerr_code; |
| u8 action_code; |
| u8 reason_code; |
| u8 explanation_code; |
| u8 vendor_specific_code; |
| } __attribute__ ((packed)); |
| |
| struct fsf_status_read_buffer { |
| u32 status_type; |
| u32 status_subtype; |
| u32 length; |
| u32 res1; |
| struct fsf_queue_designator queue_designator; |
| u8 res2; |
| u8 d_id[3]; |
| u32 class; |
| u64 fcp_lun; |
| u8 res3[24]; |
| union { |
| u8 data[FSF_STATUS_READ_PAYLOAD_SIZE]; |
| u32 word[FSF_STATUS_READ_PAYLOAD_SIZE/sizeof(u32)]; |
| struct fsf_link_down_info link_down_info; |
| struct fsf_bit_error_payload bit_error; |
| } payload; |
| } __attribute__ ((packed)); |
| |
| struct fsf_qual_version_error { |
| u32 fsf_version; |
| u32 res1[3]; |
| } __attribute__ ((packed)); |
| |
| struct fsf_qual_sequence_error { |
| u32 exp_req_seq_no; |
| u32 res1[3]; |
| } __attribute__ ((packed)); |
| |
| struct fsf_qual_latency_info { |
| u32 channel_lat; |
| u32 fabric_lat; |
| u8 res1[8]; |
| } __attribute__ ((packed)); |
| |
| union fsf_prot_status_qual { |
| u32 word[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u32)]; |
| u64 doubleword[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u64)]; |
| struct fsf_qual_version_error version_error; |
| struct fsf_qual_sequence_error sequence_error; |
| struct fsf_link_down_info link_down_info; |
| struct fsf_qual_latency_info latency_info; |
| } __attribute__ ((packed)); |
| |
| struct fsf_qtcb_prefix { |
| u64 req_id; |
| u32 qtcb_version; |
| u32 ulp_info; |
| u32 qtcb_type; |
| u32 req_seq_no; |
| u32 prot_status; |
| union fsf_prot_status_qual prot_status_qual; |
| u8 res1[20]; |
| } __attribute__ ((packed)); |
| |
| struct fsf_statistics_info { |
| u64 input_req; |
| u64 output_req; |
| u64 control_req; |
| u64 input_mb; |
| u64 output_mb; |
| u64 seconds_act; |
| } __attribute__ ((packed)); |
| |
| union fsf_status_qual { |
| u8 byte[FSF_STATUS_QUALIFIER_SIZE]; |
| u16 halfword[FSF_STATUS_QUALIFIER_SIZE / sizeof (u16)]; |
| u32 word[FSF_STATUS_QUALIFIER_SIZE / sizeof (u32)]; |
| u64 doubleword[FSF_STATUS_QUALIFIER_SIZE / sizeof(u64)]; |
| struct fsf_queue_designator fsf_queue_designator; |
| struct fsf_link_down_info link_down_info; |
| } __attribute__ ((packed)); |
| |
| struct fsf_qtcb_header { |
| u64 req_handle; |
| u32 fsf_command; |
| u32 res1; |
| u32 port_handle; |
| u32 lun_handle; |
| u32 res2; |
| u32 fsf_status; |
| union fsf_status_qual fsf_status_qual; |
| u8 res3[28]; |
| u16 log_start; |
| u16 log_length; |
| u8 res4[16]; |
| } __attribute__ ((packed)); |
| |
| #define FSF_PLOGI_MIN_LEN 112 |
| |
| #define FSF_FCP_CMND_SIZE 288 |
| #define FSF_FCP_RSP_SIZE 128 |
| |
| struct fsf_qtcb_bottom_io { |
| u32 data_direction; |
| u32 service_class; |
| u8 res1; |
| u8 data_prot_flags; |
| u16 app_tag_value; |
| u32 ref_tag_value; |
| u32 fcp_cmnd_length; |
| u32 data_block_length; |
| u32 prot_data_length; |
| u8 res2[4]; |
| union { |
| u8 byte[FSF_FCP_CMND_SIZE]; |
| struct fcp_cmnd iu; |
| } fcp_cmnd; |
| union { |
| u8 byte[FSF_FCP_RSP_SIZE]; |
| struct fcp_resp_with_ext iu; |
| } fcp_rsp; |
| u8 res3[64]; |
| } __attribute__ ((packed)); |
| |
| struct fsf_qtcb_bottom_support { |
| u32 operation_subtype; |
| u8 res1[13]; |
| u8 d_id[3]; |
| u32 option; |
| u64 fcp_lun; |
| u64 res2; |
| u64 req_handle; |
| u32 service_class; |
| u8 res3[3]; |
| u8 timeout; |
| u32 lun_access_info; |
| u8 res4[180]; |
| u32 els1_length; |
| u32 els2_length; |
| u32 req_buf_length; |
| u32 resp_buf_length; |
| u8 els[256]; |
| } __attribute__ ((packed)); |
| |
| #define ZFCP_FSF_TIMER_INT_MASK 0x3FFF |
| |
| struct fsf_qtcb_bottom_config { |
| u32 lic_version; |
| u32 feature_selection; |
| u32 high_qtcb_version; |
| u32 low_qtcb_version; |
| u32 max_qtcb_size; |
| u32 max_data_transfer_size; |
| u32 adapter_features; |
| u32 connection_features; |
| u32 fc_topology; |
| u32 fc_link_speed; /* one of ZFCP_FSF_PORTSPEED_* */ |
| u32 adapter_type; |
| u8 res0; |
| u8 peer_d_id[3]; |
| u16 status_read_buf_num; |
| u16 timer_interval; |
| u8 res2[9]; |
| u8 s_id[3]; |
| u8 nport_serv_param[128]; |
| u8 res3[8]; |
| u32 adapter_ports; |
| u32 hardware_version; |
| u8 serial_number[32]; |
| u8 plogi_payload[112]; |
| struct fsf_statistics_info stat_info; |
| u8 res4[112]; |
| } __attribute__ ((packed)); |
| |
| struct fsf_qtcb_bottom_port { |
| u64 wwpn; |
| u32 fc_port_id; |
| u32 port_type; |
| u32 port_state; |
| u32 class_of_service; /* should be 0x00000006 for class 2 and 3 */ |
| u8 supported_fc4_types[32]; /* should be 0x00000100 for scsi fcp */ |
| u8 active_fc4_types[32]; |
| u32 supported_speed; /* any combination of ZFCP_FSF_PORTSPEED_* */ |
| u32 maximum_frame_size; /* fixed value of 2112 */ |
| u64 seconds_since_last_reset; |
| u64 tx_frames; |
| u64 tx_words; |
| u64 rx_frames; |
| u64 rx_words; |
| u64 lip; /* 0 */ |
| u64 nos; /* currently 0 */ |
| u64 error_frames; /* currently 0 */ |
| u64 dumped_frames; /* currently 0 */ |
| u64 link_failure; |
| u64 loss_of_sync; |
| u64 loss_of_signal; |
| u64 psp_error_counts; |
| u64 invalid_tx_words; |
| u64 invalid_crcs; |
| u64 input_requests; |
| u64 output_requests; |
| u64 control_requests; |
| u64 input_mb; /* where 1 MByte == 1.000.000 Bytes */ |
| u64 output_mb; /* where 1 MByte == 1.000.000 Bytes */ |
| u8 cp_util; |
| u8 cb_util; |
| u8 a_util; |
| u8 res2[253]; |
| } __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 */ |
