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diff --git a/include/scsi/fc/fc_ns.h b/include/scsi/fc/fc_ns.h
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+/*
+ * Copyright(c) 2007 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Maintained at www.Open-FCoE.org
+ */
+
+#ifndef _FC_NS_H_
+#define _FC_NS_H_
+
+/*
+ * Fibre Channel Services - Name Service (dNS)
+ * From T11.org FC-GS-2 Rev 5.3 November 1998.
+ */
+
+/*
+ * Common-transport sub-type for Name Server.
+ */
+#define FC_NS_SUBTYPE 2 /* fs_ct_hdr.ct_fs_subtype */
+
+/*
+ * Name server Requests.
+ * Note: this is an incomplete list, some unused requests are omitted.
+ */
+enum fc_ns_req {
+ FC_NS_GA_NXT = 0x0100, /* get all next */
+ FC_NS_GI_A = 0x0101, /* get identifiers - scope */
+ FC_NS_GPN_ID = 0x0112, /* get port name by ID */
+ FC_NS_GNN_ID = 0x0113, /* get node name by ID */
+ FC_NS_GID_PN = 0x0121, /* get ID for port name */
+ FC_NS_GID_NN = 0x0131, /* get IDs for node name */
+ FC_NS_GID_FT = 0x0171, /* get IDs by FC4 type */
+ FC_NS_GPN_FT = 0x0172, /* get port names by FC4 type */
+ FC_NS_GID_PT = 0x01a1, /* get IDs by port type */
+ FC_NS_RFT_ID = 0x0217, /* reg FC4 type for ID */
+ FC_NS_RPN_ID = 0x0212, /* reg port name for ID */
+ FC_NS_RNN_ID = 0x0213, /* reg node name for ID */
+};
+
+/*
+ * Port type values.
+ */
+enum fc_ns_pt {
+ FC_NS_UNID_PORT = 0x00, /* unidentified */
+ FC_NS_N_PORT = 0x01, /* N port */
+ FC_NS_NL_PORT = 0x02, /* NL port */
+ FC_NS_FNL_PORT = 0x03, /* F/NL port */
+ FC_NS_NX_PORT = 0x7f, /* Nx port */
+ FC_NS_F_PORT = 0x81, /* F port */
+ FC_NS_FL_PORT = 0x82, /* FL port */
+ FC_NS_E_PORT = 0x84, /* E port */
+ FC_NS_B_PORT = 0x85, /* B port */
+};
+
+/*
+ * Port type object.
+ */
+struct fc_ns_pt_obj {
+ __u8 pt_type;
+};
+
+/*
+ * Port ID object
+ */
+struct fc_ns_fid {
+ __u8 fp_flags; /* flags for responses only */
+ __u8 fp_fid[3];
+};
+
+/*
+ * fp_flags in port ID object, for responses only.
+ */
+#define FC_NS_FID_LAST 0x80 /* last object */
+
+/*
+ * FC4-types object.
+ */
+#define FC_NS_TYPES 256 /* number of possible FC-4 types */
+#define FC_NS_BPW 32 /* bits per word in bitmap */
+
+struct fc_ns_fts {
+ __be32 ff_type_map[FC_NS_TYPES / FC_NS_BPW]; /* bitmap of FC-4 types */
+};
+
+/*
+ * GID_PT request.
+ */
+struct fc_ns_gid_pt {
+ __u8 fn_pt_type;
+ __u8 fn_domain_id_scope;
+ __u8 fn_area_id_scope;
+ __u8 fn_resvd;
+};
+
+/*
+ * GID_FT or GPN_FT request.
+ */
+struct fc_ns_gid_ft {
+ __u8 fn_resvd;
+ __u8 fn_domain_id_scope;
+ __u8 fn_area_id_scope;
+ __u8 fn_fc4_type;
+};
+
+/*
+ * GPN_FT response.
+ */
+struct fc_gpn_ft_resp {
+ __u8 fp_flags; /* see fp_flags definitions above */
+ __u8 fp_fid[3]; /* port ID */
+ __be32 fp_resvd;
+ __be64 fp_wwpn; /* port name */
+};
+
+/*
+ * GID_PN request
+ */
+struct fc_ns_gid_pn {
+ __be64 fn_wwpn; /* port name */
+};
+
+/*
+ * GID_PN response
+ */
+struct fc_gid_pn_resp {
+ __u8 fp_resvd;
+ __u8 fp_fid[3]; /* port ID */
+};
+
+/*
+ * RFT_ID request - register FC-4 types for ID.
+ */
+struct fc_ns_rft_id {
+ struct fc_ns_fid fr_fid; /* port ID object */
+ struct fc_ns_fts fr_fts; /* FC-4 types object */
+};
+
+/*
+ * RPN_ID request - register port name for ID.
+ * RNN_ID request - register node name for ID.
+ */
+struct fc_ns_rn_id {
+ struct fc_ns_fid fr_fid; /* port ID object */
+ __be64 fr_wwn; /* node name or port name */
+} __attribute__((__packed__));
+
+#endif /* _FC_NS_H_ */