/*
*
* linux/drivers/s390/scsi/zfcp_fsf.h
*
* FCP adapter driver for IBM eServer zSeries
*
* Copyright 2002 IBM Corporation
* Author(s): Martin Peschke <mpeschke@de.ibm.com>
* Raimund Schroeder <raimund.schroeder@de.ibm.com>
* Aron Zeh <arzeh@de.ibm.com>
* Wolfgang Taphorn <taphorn@de.ibm.com>
* Stefan Bader <stefan.bader@de.ibm.com>
* Heiko Carstens <heiko.carstens@de.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef FSF_H
#define FSF_H
#define FSF_QTCB_VERSION1 0x00000001
#define FSF_QTCB_CURRENT_VERSION FSF_QTCB_VERSION1
/* 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
/* FSF QTCB types */
#define FSF_IO_COMMAND 0x00000001
#define FSF_SUPPORT_COMMAND 0x00000002
#define FSF_CONFIG_COMMAND 0x00000003
/* FSF protocol stati */
#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 stati */
#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_ACCESS_DENIED 0x00000010
#define FSF_ACCESS_TYPE_NOT_VALID 0x00000011
#define FSF_LUN_IN_USE 0x00000012
#define FSF_COMMAND_ABORTED_ULP 0x00000020
#define FSF_COMMAND_ABORTED_ADAPTER 0x00000021
#define FSF_FCP_COMMAND_DOES_NOT_EXIST 0x00000022
#define FSF_DIRECTION_INDICATOR_NOT_VALID 0x00000030
#define FSF_INBOUND_DATA_LENGTH_NOT_VALID 0x00000031 /* FIX: obsolete? */
#define FSF_OUTBOUND_DATA_LENGTH_NOT_VALID 0x00000032 /* FIX: obsolete? */
#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_REQUEST_BUF_NOT_VALID 0x00000042
#define FSF_RESPONSE_BUF_NOT_VALID 0x00000043
#define FSF_ELS_COMMAND_REJECTED 0x00000050
#define FSF_GENERIC_COMMAND_REJECTED 0x00000051
//#define FSF_AUTHORIZATION_FAILURE 0x00000053
#define FSF_PORT_BOXED 0x00000059
//#define FSF_LUN_BOXED 0x0000005A
#define FSF_ADAPTER_STATUS_AVAILABLE 0x000000AD
#define FSF_FCP_RSP_AVAILABLE 0x000000AF
#define FSF_UNKNOWN_COMMAND 0x000000E2
//#define FSF_ERROR 0x000000FF
#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_ULP_PROGRAMMING_ERROR 0x05
#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_NOLIGHT 0x00000004
#define FSF_PSQ_LINK_WRAPPLUG 0x00000008
#define FSF_PSQ_LINK_NOFCP 0x00000010
/* 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_BIT_ERROR_THRESHOLD 0x00000004
#define FSF_STATUS_READ_LINK_DOWN 0x00000005 /* FIXME: really? */
#define FSF_STATUS_READ_LINK_UP 0x00000006
/* status subtypes in status read buffer */
#define FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT 0x00000001
#define FSF_STATUS_READ_SUB_ERROR_PORT 0x00000002
/* topologie that is detected by the adapter */
#define FSF_TOPO_ERROR 0x00000000
#define FSF_TOPO_P2P 0x00000001
#define FSF_TOPO_FABRIC 0x00000002
#define FSF_TOPO_AL 0x00000003
#define FSF_TOPO_FABRIC_VIRT 0x00000004
/* data direction for FCP commands */
#define FSF_DATADIR_WRITE 0x00000001
#define FSF_DATADIR_READ 0x00000002
#define FSF_DATADIR_READ_WRITE 0x00000003
#define FSF_DATADIR_CMND 0x00000004
/* fc service class */
#define FSF_CLASS_1 0x00000001
#define FSF_CLASS_2 0x00000002
#define FSF_CLASS_3 0x00000003
/* SBAL chaining */
#define FSF_MAX_SBALS_PER_REQ 36
/* logging space behind QTCB */
#define FSF_QTCB_LOG_SIZE 1024
struct fsf_queue_designator;
struct fsf_status_read_buffer;
struct fsf_port_closed_payload;
struct fsf_bit_error_payload;
union fsf_prot_status_qual;
struct fsf_qual_version_error;
struct fsf_qual_sequence_error;
struct fsf_qtcb_prefix;
struct fsf_qtcb_header;
struct fsf_qtcb_bottom_config;
struct fsf_qtcb_bottom_support;
struct fsf_qtcb_bottom_io;
union fsf_qtcb_bottom;
struct fsf_queue_designator {
u8 cssid;
u8 chpid;
u8 hla;
u8 ua;
u32 res1;
} __attribute__ ((packed));
struct fsf_port_closed_payload {
struct fsf_queue_designator queue_designator;
u32 port_handle;
} __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_status_read_buffer {
u32 status_type;
u32 status_subtype;
u32 length;
u32 res1;
struct fsf_queue_designator queue_designator;
u32 d_id;
u32 class;
u64 fcp_lun;
u8 res3[24];
u8 payload[FSF_STATUS_READ_PAYLOAD_SIZE];
} __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_locallink_error {
u32 code;
u32 res1[3];
} __attribute__ ((packed));
union fsf_prot_status_qual {
struct fsf_qual_version_error version_error;
struct fsf_qual_sequence_error sequence_error;
struct fsf_qual_locallink_error locallink_error;
} __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));
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)];
struct {
u32 this_cmd;
u32 aborted_cmd;
} port_handle;
struct {
u32 this_cmd;
u32 aborted_cmd;
} lun_handle;
struct {
u64 found;
u64 expected;
} fcp_lun;
} __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));
struct fsf_nport_serv_param {
u8 common_serv_param[16];
u64 wwpn;
u64 wwnn;
u8 class1_serv_param[16];
u8 class2_serv_param[16];
u8 class3_serv_param[16];
u8 class4_serv_param[16];
u8 vendor_version_level[16];
u8 res1[16];
} __attribute__ ((packed));
struct fsf_plogi {
u32 code;
struct fsf_nport_serv_param serv_param;
} __attribute__ ((packed));
#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[8];
u32 fcp_cmnd_length;
u8 res2[12];
u8 fcp_cmnd[FSF_FCP_CMND_SIZE];
u8 fcp_rsp[FSF_FCP_RSP_SIZE];
u8 res3[64];
} __attribute__ ((packed));
struct fsf_qtcb_bottom_support {
u8 res1[16];
u32 d_id;
u32 res2;
u64 fcp_lun;
u64 res3;
u64 req_handle;
u32 service_class;
u8 res4[3];
u8 timeout;
u8 res5[184];
u32 els1_length;
u32 els2_length;
u64 res6;
u8 els[256];
} __attribute__ ((packed));
struct fsf_qtcb_bottom_config {
u32 lic_version;
u32 res1;
u32 high_qtcb_version;
u32 low_qtcb_version;
u32 max_qtcb_size;
u8 res2[12];
u32 fc_topology;
u32 fc_link_speed;
u32 adapter_type;
u32 peer_d_id;
u8 res3[12];
u32 s_id;
struct fsf_nport_serv_param nport_serv_param;
u8 res4[320];
} __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 {
struct fsf_qtcb_prefix prefix;
struct fsf_qtcb_header header;
union fsf_qtcb_bottom bottom;
} __attribute__ ((packed));
#endif /* FSF_H */
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