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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_NS_H_
21  #define	_FC_NS_H_
22  
23  #include <linux/types.h>
24  
25  /*
26   * Fibre Channel Services - Name Service (dNS)
27   * From T11.org FC-GS-2 Rev 5.3 November 1998.
28   */
29  
30  /*
31   * Common-transport sub-type for Name Server.
32   */
33  #define	FC_NS_SUBTYPE	    2	/* fs_ct_hdr.ct_fs_subtype */
34  
35  /*
36   * Name server Requests.
37   * Note:  this is an incomplete list, some unused requests are omitted.
38   */
39  enum fc_ns_req {
40  	FC_NS_GA_NXT =	0x0100,		/* get all next */
41  	FC_NS_GI_A =	0x0101,		/* get identifiers - scope */
42  	FC_NS_GPN_ID =	0x0112,		/* get port name by ID */
43  	FC_NS_GNN_ID =	0x0113,		/* get node name by ID */
44  	FC_NS_GSPN_ID = 0x0118,		/* get symbolic port name */
45  	FC_NS_GID_PN =	0x0121,		/* get ID for port name */
46  	FC_NS_GID_NN =	0x0131,		/* get IDs for node name */
47  	FC_NS_GID_FT =	0x0171,		/* get IDs by FC4 type */
48  	FC_NS_GPN_FT =	0x0172,		/* get port names by FC4 type */
49  	FC_NS_GID_PT =	0x01a1,		/* get IDs by port type */
50  	FC_NS_RPN_ID =	0x0212,		/* reg port name for ID */
51  	FC_NS_RNN_ID =	0x0213,		/* reg node name for ID */
52  	FC_NS_RFT_ID =	0x0217,		/* reg FC4 type for ID */
53  	FC_NS_RSPN_ID =	0x0218,		/* reg symbolic port name */
54  	FC_NS_RFF_ID =	0x021f,		/* reg FC4 Features for ID */
55  	FC_NS_RSNN_NN =	0x0239,		/* reg symbolic node name */
56  };
57  
58  /*
59   * Port type values.
60   */
61  enum fc_ns_pt {
62  	FC_NS_UNID_PORT = 0x00,	/* unidentified */
63  	FC_NS_N_PORT =	0x01,	/* N port */
64  	FC_NS_NL_PORT =	0x02,	/* NL port */
65  	FC_NS_FNL_PORT = 0x03,	/* F/NL port */
66  	FC_NS_NX_PORT =	0x7f,	/* Nx port */
67  	FC_NS_F_PORT =	0x81,	/* F port */
68  	FC_NS_FL_PORT =	0x82,	/* FL port */
69  	FC_NS_E_PORT =	0x84,	/* E port */
70  	FC_NS_B_PORT =	0x85,	/* B port */
71  };
72  
73  /*
74   * Port type object.
75   */
76  struct fc_ns_pt_obj {
77  	__u8		pt_type;
78  };
79  
80  /*
81   * Port ID object
82   */
83  struct fc_ns_fid {
84  	__u8		fp_flags;	/* flags for responses only */
85  	__u8		fp_fid[3];
86  };
87  
88  /*
89   * fp_flags in port ID object, for responses only.
90   */
91  #define	FC_NS_FID_LAST	0x80		/* last object */
92  
93  /*
94   * FC4-types object.
95   */
96  #define	FC_NS_TYPES	256	/* number of possible FC-4 types */
97  #define	FC_NS_BPW	32	/* bits per word in bitmap */
98  
99  struct fc_ns_fts {
100  	__be32	ff_type_map[FC_NS_TYPES / FC_NS_BPW]; /* bitmap of FC-4 types */
101  };
102  
103  /*
104   * FC4-features object.
105   */
106  struct fc_ns_ff	{
107  	__be32	fd_feat[FC_NS_TYPES * 4 / FC_NS_BPW]; /* 4-bits per FC-type */
108  };
109  
110  /*
111   * GID_PT request.
112   */
113  struct fc_ns_gid_pt {
114  	__u8		fn_pt_type;
115  	__u8		fn_domain_id_scope;
116  	__u8		fn_area_id_scope;
117  	__u8		fn_resvd;
118  };
119  
120  /*
121   * GID_FT or GPN_FT request.
122   */
123  struct fc_ns_gid_ft {
124  	__u8		fn_resvd;
125  	__u8		fn_domain_id_scope;
126  	__u8		fn_area_id_scope;
127  	__u8		fn_fc4_type;
128  };
129  
130  /*
131   * GPN_FT response.
132   */
133  struct fc_gpn_ft_resp {
134  	__u8		fp_flags;	/* see fp_flags definitions above */
135  	__u8		fp_fid[3];	/* port ID */
136  	__be32		fp_resvd;
137  	__be64		fp_wwpn;	/* port name */
138  };
139  
140  /*
141   * GID_PN request
142   */
143  struct fc_ns_gid_pn {
144  	__be64     fn_wwpn;    /* port name */
145  };
146  
147  /*
148   * GID_PN response or GSPN_ID request
149   */
150  struct fc_gid_pn_resp {
151  	__u8      fp_resvd;
152  	__u8      fp_fid[3];     /* port ID */
153  };
154  
155  /*
156   * GSPN_ID response
157   */
158  struct fc_gspn_resp {
159  	__u8	fp_name_len;
160  	char	fp_name[];
161  };
162  
163  /*
164   * RFT_ID request - register FC-4 types for ID.
165   */
166  struct fc_ns_rft_id {
167  	struct fc_ns_fid fr_fid;	/* port ID object */
168  	struct fc_ns_fts fr_fts;	/* FC-4 types object */
169  };
170  
171  /*
172   * RPN_ID request - register port name for ID.
173   * RNN_ID request - register node name for ID.
174   */
175  struct fc_ns_rn_id {
176  	struct fc_ns_fid fr_fid;	/* port ID object */
177  	__be64		fr_wwn;		/* node name or port name */
178  } __attribute__((__packed__));
179  
180  /*
181   * RSNN_NN request - register symbolic node name
182   */
183  struct fc_ns_rsnn {
184  	__be64		fr_wwn;		/* node name */
185  	__u8		fr_name_len;
186  	char		fr_name[];
187  } __attribute__((__packed__));
188  
189  /*
190   * RSPN_ID request - register symbolic port name
191   */
192  struct fc_ns_rspn {
193  	struct fc_ns_fid fr_fid;	/* port ID object */
194  	__u8		fr_name_len;
195  	char		fr_name[];
196  } __attribute__((__packed__));
197  
198  /*
199   * RFF_ID request - register FC-4 Features for ID.
200   */
201  struct fc_ns_rff_id {
202  	struct fc_ns_fid fr_fid;	/* port ID object */
203  	__u8		fr_resvd[2];
204  	__u8		fr_feat;	/* FC-4 Feature bits */
205  	__u8		fr_type;	/* FC-4 type */
206  } __attribute__((__packed__));
207  
208  #endif /* _FC_NS_H_ */
209