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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 
/* 
 * Copyright(c) 2007 Intel Corporation. All rights reserved. 
 * 
 * Maintained at www.Open-FCoE.org 
 */ 
 
#ifndef _FC_GS_H_ 
#define	_FC_GS_H_ 
 
#include <linux/types.h> 
 
/* 
 * Fibre Channel Services - Common Transport. 
 * From T11.org FC-GS-2 Rev 5.3 November 1998. 
 */ 
 
struct fc_ct_hdr { 
	__u8		ct_rev;		/* revision */ 
	__u8		ct_in_id[3];	/* N_Port ID of original requestor */ 
	__u8		ct_fs_type;	/* type of fibre channel service */ 
	__u8		ct_fs_subtype;	/* subtype */ 
	__u8		ct_options; 
	__u8		_ct_resvd1; 
	__be16		ct_cmd;		/* command / response code */ 
	__be16		ct_mr_size;	/* maximum / residual size */ 
	__u8		_ct_resvd2; 
	__u8		ct_reason;	/* reject reason */ 
	__u8		ct_explan;	/* reason code explanation */ 
	__u8		ct_vendor;	/* vendor unique data */ 
}; 
 
#define	FC_CT_HDR_LEN	16	/* expected sizeof (struct fc_ct_hdr) */ 
 
enum fc_ct_rev { 
	FC_CT_REV = 1		/* common transport revision */ 
}; 
 
/* 
 * ct_fs_type values. 
 */ 
enum fc_ct_fs_type { 
	FC_FST_ALIAS =	0xf8,	/* alias service */ 
	FC_FST_MGMT =	0xfa,	/* management service */ 
	FC_FST_TIME =	0xfb,	/* time service */ 
	FC_FST_DIR =	0xfc,	/* directory service */ 
}; 
 
/* 
 * ct_cmd: Command / response codes 
 */ 
enum fc_ct_cmd { 
	FC_FS_RJT =	0x8001,	/* reject */ 
	FC_FS_ACC =	0x8002,	/* accept */ 
}; 
 
/* 
 * FS_RJT reason codes. 
 */ 
enum fc_ct_reason { 
	FC_FS_RJT_CMD =		0x01,	/* invalid command code */ 
	FC_FS_RJT_VER =		0x02,	/* invalid version level */ 
	FC_FS_RJT_LOG =		0x03,	/* logical error */ 
	FC_FS_RJT_IUSIZ =	0x04,	/* invalid IU size */ 
	FC_FS_RJT_BSY =		0x05,	/* logical busy */ 
	FC_FS_RJT_PROTO =	0x07,	/* protocol error */ 
	FC_FS_RJT_UNABL =	0x09,	/* unable to perform command request */ 
	FC_FS_RJT_UNSUP =	0x0b,	/* command not supported */ 
}; 
 
/* 
 * FS_RJT reason code explanations. 
 */ 
enum fc_ct_explan { 
	FC_FS_EXP_NONE =	0x00,	/* no additional explanation */ 
	FC_FS_EXP_PID =		0x01,	/* port ID not registered */ 
	FC_FS_EXP_PNAM =	0x02,	/* port name not registered */ 
	FC_FS_EXP_NNAM =	0x03,	/* node name not registered */ 
	FC_FS_EXP_COS =		0x04,	/* class of service not registered */ 
	FC_FS_EXP_FTNR =	0x07,	/* FC-4 types not registered */ 
	/* definitions not complete */ 
}; 
 
#endif /* _FC_GS_H_ */