Subversion Repositories or1k

/* fc.h: Definitions for Fibre Channel Physical and Signaling Interface.

 *

 * Copyright (C) 1996-1997,1999 Jakub Jelinek (jj@ultra.linux.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_IEEE_REG          5

#define NAAID_IEEE_REG_EXT      6

#define NAAID_CCITT             12

#define NAAID_CCITT_GRP         14

/* This is NAAID_IEEE_EXT scheme */

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_PRLI_ACC             0x02100014

#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_PRLI                 0x20100014

#define LS_DISPLAY              0x21000000

#define LS_PRLO                 0x21100014

#define LS_PDISC                0x50000000

#define LS_ADISC                0x52000000

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) */