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/* fc.h: Definitions for Fibre Channel Physical and Signaling Interface.
*
* Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*
* Sources:
* Fibre Channel Physical & Signaling Interface (FC-PH), dpANS, 1994
* dpANS Fibre Channel Protocol for SCSI (X3.269-199X), Rev. 012, 1995
*/
#ifndef __FC_H
#define __FC_H
/* World Wide Name */
#define NAAID_IEEE 1
#define NAAID_IEEE_EXT 2
#define NAAID_LOCAL 3
#define NAAID_IP 4
#define NAAID_CCITT 12
#define NAAID_CCITT_GRP 14
typedef struct {
u32 naaid:4;
u32 nportid:12;
u32 hi:16;
u32 lo;
} fc_wwn;
/* Frame header for FC-PH frames */
/* r_ctl field */
#define R_CTL_DEVICE_DATA 0x00 /* FC4 Device_Data frame */
#define R_CTL_EXTENDED_SVC 0x20 /* Extended Link_Data frame */
#define R_CTL_FC4_SVC 0x30 /* FC4 Link_Data frame */
#define R_CTL_VIDEO 0x40 /* Video_Data frame */
#define R_CTL_BASIC_SVC 0x80 /* Basic Link_Data frame */
#define R_CTL_LINK_CTL 0xc0 /* Link_Control frame */
/* FC4 Device_Data frames */
#define R_CTL_UNCATEGORIZED 0x00
#define R_CTL_SOLICITED_DATA 0x01
#define R_CTL_UNSOL_CONTROL 0x02
#define R_CTL_SOLICITED_CONTROL 0x03
#define R_CTL_UNSOL_DATA 0x04
#define R_CTL_XFER_RDY 0x05
#define R_CTL_COMMAND 0x06
#define R_CTL_STATUS 0x07
/* Basic Link_Data frames */
#define R_CTL_LS_NOP 0x80
#define R_CTL_LS_ABTS 0x81
#define R_CTL_LS_RMC 0x82
#define R_CTL_LS_BA_ACC 0x84
#define R_CTL_LS_BA_RJT 0x85
/* Extended Link_Data frames */
#define R_CTL_ELS_REQ 0x22
#define R_CTL_ELS_RSP 0x23
/* Link_Control frames */
#define R_CTL_ACK_1 0xc0
#define R_CTL_ACK_N 0xc1
#define R_CTL_P_RJT 0xc2
#define R_CTL_F_RJT 0xc3
#define R_CTL_P_BSY 0xc4
#define R_CTL_F_BSY_DF 0xc5
#define R_CTL_F_BSY_LC 0xc6
#define R_CTL_LCR 0xc7
/* type field */
#define TYPE_BASIC_LS 0x00
#define TYPE_EXTENDED_LS 0x01
#define TYPE_IS8802 0x04
#define TYPE_IS8802_SNAP 0x05
#define TYPE_SCSI_FCP 0x08
#define TYPE_SCSI_GPP 0x09
#define TYPE_HIPP_FP 0x0a
#define TYPE_IPI3_MASTER 0x11
#define TYPE_IPI3_SLAVE 0x12
#define TYPE_IPI3_PEER 0x13
/* f_ctl field */
#define F_CTL_FILL_BYTES 0x000003
#define F_CTL_XCHG_REASSEMBLE 0x000004
#define F_CTL_RO_PRESENT 0x000008
#define F_CTL_ABORT_SEQ 0x000030
#define F_CTL_CONTINUE_SEQ 0x0000c0
#define F_CTL_INVALIDATE_XID 0x004000
#define F_CTL_XID_REASSIGNED 0x008000
#define F_CTL_SEQ_INITIATIVE 0x010000
#define F_CTL_CHAINED_SEQ 0x020000
#define F_CTL_END_CONNECT 0x040000
#define F_CTL_END_SEQ 0x080000
#define F_CTL_LAST_SEQ 0x100000
#define F_CTL_FIRST_SEQ 0x200000
#define F_CTL_SEQ_CONTEXT 0x400000
#define F_CTL_XCHG_CONTEXT 0x800000
typedef struct {
u32 r_ctl:8, did:24;
u32 xxx1:8, sid:24;
u32 type:8, f_ctl:24;
u32 seq_id:8, df_ctl:8, seq_cnt:16;
u16 ox_id, rx_id;
u32 param;
} fc_hdr;
/* The following are ugly macros to make setup of this structure faster */
#define FILL_FCHDR_RCTL_DID(fch, r_ctl, did) *(u32 *)(fch) = ((r_ctl) << 24) | (did);
#define FILL_FCHDR_SID(fch, sid) *((u32 *)(fch)+1) = (sid);
#define FILL_FCHDR_TYPE_FCTL(fch, type, f_ctl) *((u32 *)(fch)+2) = ((type) << 24) | (f_ctl);
#define FILL_FCHDR_SEQ_DF_SEQ(fch, seq_id, df_ctl, seq_cnt) *((u32 *)(fch)+3) = ((seq_id) << 24) | ((df_ctl) << 16) | (seq_cnt);
#define FILL_FCHDR_OXRX(fch, ox_id, rx_id) *((u32 *)(fch)+4) = ((ox_id) << 16) | (rx_id);
/* Well known addresses */
#define FS_GENERAL_MULTICAST 0xfffff7
#define FS_WELL_KNOWN_MULTICAST 0xfffff8
#define FS_HUNT_GROUP 0xfffff9
#define FS_MANAGEMENT_SERVER 0xfffffa
#define FS_TIME_SERVER 0xfffffb
#define FS_NAME_SERVER 0xfffffc
#define FS_FABRIC_CONTROLLER 0xfffffd
#define FS_FABRIC_F_PORT 0xfffffe
#define FS_BROADCAST 0xffffff
/* Reject frames */
/* The param field should be cast to this structure */
typedef struct {
u8 action;
u8 reason;
u8 xxx;
u8 vendor_unique;
} rjt_param;
/* Reject action codes */
#define RJT_RETRY 0x01
#define RJT_NONRETRY 0x02
/* Reject reason codes */
#define RJT_INVALID_DID 0x01
#define RJT_INVALID_SID 0x02
#define RJT_NPORT_NOT_AVAIL_TEMP 0x03
#define RJT_NPORT_NOT_AVAIL_PERM 0x04
#define RJT_CLASS_NOT_SUPPORTED 0x05
#define RJT_DELIMITER_ERROR 0x06
#define RJT_TYPE_NOT_SUPPORTED 0x07
#define RJT_INVALID_LINK_CONTROL 0x08
#define RJT_INVALID_R_CTL 0x09
#define RJT_INVALID_F_CTL 0x0a
#define RJT_INVALID_OX_ID 0x0b
#define RJT_INVALID_RX_ID 0x0c
#define RJT_INVALID_SEQ_ID 0x0d
#define RJT_INVALID_DF_CTL 0x0e
#define RJT_INVALID_SEQ_CNT 0x0f
#define RJT_INVALID_PARAMETER 0x10
#define RJT_EXCHANGE_ERROR 0x11
#define RJT_PROTOCOL_ERROR 0x12
#define RJT_INCORRECT_LENGTH 0x13
#define RJT_UNEXPECTED_ACK 0x14
#define RJT_UNEXPECTED_LINK_RESP 0x15
#define RJT_LOGIN_REQUIRED 0x16
#define RJT_EXCESSIVE_SEQUENCES 0x17
#define RJT_CANT_ESTABLISH_EXCHANGE 0x18
#define RJT_SECURITY_NOT_SUPPORTED 0x19
#define RJT_FABRIC_NA 0x1a
#define RJT_VENDOR_UNIQUE 0xff
#define SP_F_PORT_LOGIN 0x10
/* Extended SVC commands */
#define LS_RJT 0x01000000
#define LS_ACC 0x02000000
#define LS_PLOGI 0x03000000
#define LS_FLOGI 0x04000000
#define LS_LOGO 0x05000000
#define LS_ABTX 0x06000000
#define LS_RCS 0x07000000
#define LS_RES 0x08000000
#define LS_RSS 0x09000000
#define LS_RSI 0x0a000000
#define LS_ESTS 0x0b000000
#define LS_ESTC 0x0c000000
#define LS_ADVC 0x0d000000
#define LS_RTV 0x0e000000
#define LS_RLS 0x0f000000
#define LS_ECHO 0x10000000
#define LS_TEST 0x11000000
#define LS_RRQ 0x12000000
#define LS_IDENT 0x20000000
#define LS_DISPLAY 0x21000000
typedef struct {
u8 fcph_hi, fcph_lo;
u16 buf2buf_credit;
u8 common_features;
u8 xxx1;
u16 buf2buf_size;
u8 xxx2;
u8 total_concurrent;
u16 off_by_info;
u32 e_d_tov;
} common_svc_parm;
typedef struct {
u16 serv_opts;
u16 initiator_ctl;
u16 rcpt_ctl;
u16 recv_size;
u8 xxx1;
u8 concurrent_seqs;
u16 end2end_credit;
u16 open_seqs_per_xchg;
u16 xxx2;
} svc_parm;
/* Login */
typedef struct {
u32 code;
common_svc_parm common;
fc_wwn nport_wwn;
fc_wwn node_wwn;
svc_parm class1;
svc_parm class2;
svc_parm class3;
} logi;
#endif /* !(__FC_H) */
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