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      1 /*
      2  * Copyright(c) 2007 Intel Corporation. All rights reserved.
      3  *
      4  * This program is free software; you can redistribute it and/or modify it
      5  * under the terms and conditions of the GNU General Public License,
      6  * version 2, as published by the Free Software Foundation.
      7  *
      8  * This program is distributed in the hope it will be useful, but WITHOUT
      9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
     11  * more details.
     12  *
     13  * You should have received a copy of the GNU General Public License along with
     14  * this program; if not, write to the Free Software Foundation, Inc.,
     15  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
     16  *
     17  * Maintained at www.Open-FCoE.org
     18  */
     19 
     20 #ifndef _FC_GS_H_
     21 #define	_FC_GS_H_
     22 
     23 #include <linux/types.h>
     24 
     25 /*
     26  * Fibre Channel Services - Common Transport.
     27  * From T11.org FC-GS-2 Rev 5.3 November 1998.
     28  */
     29 
     30 struct fc_ct_hdr {
     31 	__u8		ct_rev;		/* revision */
     32 	__u8		ct_in_id[3];	/* N_Port ID of original requestor */
     33 	__u8		ct_fs_type;	/* type of fibre channel service */
     34 	__u8		ct_fs_subtype;	/* subtype */
     35 	__u8		ct_options;
     36 	__u8		_ct_resvd1;
     37 	__be16		ct_cmd;		/* command / response code */
     38 	__be16		ct_mr_size;	/* maximum / residual size */
     39 	__u8		_ct_resvd2;
     40 	__u8		ct_reason;	/* reject reason */
     41 	__u8		ct_explan;	/* reason code explanation */
     42 	__u8		ct_vendor;	/* vendor unique data */
     43 };
     44 
     45 #define	FC_CT_HDR_LEN	16	/* expected sizeof (struct fc_ct_hdr) */
     46 
     47 enum fc_ct_rev {
     48 	FC_CT_REV = 1		/* common transport revision */
     49 };
     50 
     51 /*
     52  * ct_fs_type values.
     53  */
     54 enum fc_ct_fs_type {
     55 	FC_FST_ALIAS =	0xf8,	/* alias service */
     56 	FC_FST_MGMT =	0xfa,	/* management service */
     57 	FC_FST_TIME =	0xfb,	/* time service */
     58 	FC_FST_DIR =	0xfc,	/* directory service */
     59 };
     60 
     61 /*
     62  * ct_cmd: Command / response codes
     63  */
     64 enum fc_ct_cmd {
     65 	FC_FS_RJT =	0x8001,	/* reject */
     66 	FC_FS_ACC =	0x8002,	/* accept */
     67 };
     68 
     69 /*
     70  * FS_RJT reason codes.
     71  */
     72 enum fc_ct_reason {
     73 	FC_FS_RJT_CMD =		0x01,	/* invalid command code */
     74 	FC_FS_RJT_VER =		0x02,	/* invalid version level */
     75 	FC_FS_RJT_LOG =		0x03,	/* logical error */
     76 	FC_FS_RJT_IUSIZ =	0x04,	/* invalid IU size */
     77 	FC_FS_RJT_BSY =		0x05,	/* logical busy */
     78 	FC_FS_RJT_PROTO =	0x07,	/* protocol error */
     79 	FC_FS_RJT_UNABL =	0x09,	/* unable to perform command request */
     80 	FC_FS_RJT_UNSUP =	0x0b,	/* command not supported */
     81 };
     82 
     83 /*
     84  * FS_RJT reason code explanations.
     85  */
     86 enum fc_ct_explan {
     87 	FC_FS_EXP_NONE =	0x00,	/* no additional explanation */
     88 	FC_FS_EXP_PID =		0x01,	/* port ID not registered */
     89 	FC_FS_EXP_PNAM =	0x02,	/* port name not registered */
     90 	FC_FS_EXP_NNAM =	0x03,	/* node name not registered */
     91 	FC_FS_EXP_COS =		0x04,	/* class of service not registered */
     92 	FC_FS_EXP_FTNR =	0x07,	/* FC-4 types not registered */
     93 	/* definitions not complete */
     94 };
     95 
     96 #endif /* _FC_GS_H_ */
     97