1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright(c) 2008 Intel Corporation. All rights reserved.
4  *
5  * Maintained at www.Open-FCoE.org
6  */
7 
8 #ifndef _FC_ENCODE_H_
9 #define _FC_ENCODE_H_
10 #include <asm/unaligned.h>
11 #include <linux/utsname.h>
12 #include <scsi/fc/fc_ms.h>
13 
14 /*
15  * F_CTL values for simple requests and responses.
16  */
17 #define FC_FCTL_REQ	(FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)
18 #define FC_FCTL_RESP	(FC_FC_EX_CTX | FC_FC_LAST_SEQ | \
19 			FC_FC_END_SEQ | FC_FC_SEQ_INIT)
20 
21 struct fc_ns_rft {
22 	struct fc_ns_fid fid;	/* port ID object */
23 	struct fc_ns_fts fts;	/* FC4-types object */
24 };
25 
26 struct fc_ct_req {
27 	struct fc_ct_hdr hdr;
28 	union {
29 		struct fc_ns_gid_ft gid;
30 		struct fc_ns_rn_id  rn;
31 		struct fc_ns_rft rft;
32 		struct fc_ns_rff_id rff;
33 		struct fc_ns_fid fid;
34 		struct fc_ns_rsnn snn;
35 		struct fc_ns_rspn spn;
36 		struct fc_fdmi_rhba rhba;
37 		struct fc_fdmi_rpa  rpa;
38 		struct fc_fdmi_dprt dprt;
39 		struct fc_fdmi_dhba dhba;
40 	} payload;
41 };
42 
43 /**
44  * fc_adisc_fill() - Fill in adisc request frame
45  * @lport: local port.
46  * @fp: fc frame where payload will be placed.
47  */
fc_adisc_fill(struct fc_lport * lport,struct fc_frame * fp)48 static inline void fc_adisc_fill(struct fc_lport *lport, struct fc_frame *fp)
49 {
50 	struct fc_els_adisc *adisc;
51 
52 	adisc = fc_frame_payload_get(fp, sizeof(*adisc));
53 	memset(adisc, 0, sizeof(*adisc));
54 	adisc->adisc_cmd = ELS_ADISC;
55 	put_unaligned_be64(lport->wwpn, &adisc->adisc_wwpn);
56 	put_unaligned_be64(lport->wwnn, &adisc->adisc_wwnn);
57 	hton24(adisc->adisc_port_id, lport->port_id);
58 }
59 
60 /**
61  * fc_ct_hdr_fill- fills ct header and reset ct payload
62  * returns pointer to ct request.
63  */
fc_ct_hdr_fill(const struct fc_frame * fp,unsigned int op,size_t req_size,enum fc_ct_fs_type fs_type,u8 subtype)64 static inline struct fc_ct_req *fc_ct_hdr_fill(const struct fc_frame *fp,
65 					       unsigned int op, size_t req_size,
66 					       enum fc_ct_fs_type fs_type,
67 					       u8 subtype)
68 {
69 	struct fc_ct_req *ct;
70 	size_t ct_plen;
71 
72 	ct_plen  = sizeof(struct fc_ct_hdr) + req_size;
73 	ct = fc_frame_payload_get(fp, ct_plen);
74 	memset(ct, 0, ct_plen);
75 	ct->hdr.ct_rev = FC_CT_REV;
76 	ct->hdr.ct_fs_type = fs_type;
77 	ct->hdr.ct_fs_subtype = subtype;
78 	ct->hdr.ct_cmd = htons((u16) op);
79 	return ct;
80 }
81 
82 /**
83  * fc_ct_ns_fill() - Fill in a name service request frame
84  * @lport: local port.
85  * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
86  * @fp: frame to contain payload.
87  * @op: CT opcode.
88  * @r_ctl: pointer to FC header R_CTL.
89  * @fh_type: pointer to FC-4 type.
90  */
fc_ct_ns_fill(struct fc_lport * lport,u32 fc_id,struct fc_frame * fp,unsigned int op,enum fc_rctl * r_ctl,enum fc_fh_type * fh_type)91 static inline int fc_ct_ns_fill(struct fc_lport *lport,
92 		      u32 fc_id, struct fc_frame *fp,
93 		      unsigned int op, enum fc_rctl *r_ctl,
94 		      enum fc_fh_type *fh_type)
95 {
96 	struct fc_ct_req *ct;
97 	size_t len;
98 
99 	switch (op) {
100 	case FC_NS_GPN_FT:
101 		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_gid_ft),
102 				    FC_FST_DIR, FC_NS_SUBTYPE);
103 		ct->payload.gid.fn_fc4_type = FC_TYPE_FCP;
104 		break;
105 
106 	case FC_NS_GPN_ID:
107 		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_fid),
108 				    FC_FST_DIR, FC_NS_SUBTYPE);
109 		ct->payload.gid.fn_fc4_type = FC_TYPE_FCP;
110 		hton24(ct->payload.fid.fp_fid, fc_id);
111 		break;
112 
113 	case FC_NS_RFT_ID:
114 		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rft),
115 				    FC_FST_DIR, FC_NS_SUBTYPE);
116 		hton24(ct->payload.rft.fid.fp_fid, lport->port_id);
117 		ct->payload.rft.fts = lport->fcts;
118 		break;
119 
120 	case FC_NS_RFF_ID:
121 		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rff_id),
122 				    FC_FST_DIR, FC_NS_SUBTYPE);
123 		hton24(ct->payload.rff.fr_fid.fp_fid, lport->port_id);
124 		ct->payload.rff.fr_type = FC_TYPE_FCP;
125 		if (lport->service_params & FCP_SPPF_INIT_FCN)
126 			ct->payload.rff.fr_feat = FCP_FEAT_INIT;
127 		if (lport->service_params & FCP_SPPF_TARG_FCN)
128 			ct->payload.rff.fr_feat |= FCP_FEAT_TARG;
129 		break;
130 
131 	case FC_NS_RNN_ID:
132 		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rn_id),
133 				    FC_FST_DIR, FC_NS_SUBTYPE);
134 		hton24(ct->payload.rn.fr_fid.fp_fid, lport->port_id);
135 		put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn);
136 		break;
137 
138 	case FC_NS_RSPN_ID:
139 		len = strnlen(fc_host_symbolic_name(lport->host), 255);
140 		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rspn) + len,
141 				    FC_FST_DIR, FC_NS_SUBTYPE);
142 		hton24(ct->payload.spn.fr_fid.fp_fid, lport->port_id);
143 		strncpy(ct->payload.spn.fr_name,
144 			fc_host_symbolic_name(lport->host), len);
145 		ct->payload.spn.fr_name_len = len;
146 		break;
147 
148 	case FC_NS_RSNN_NN:
149 		len = strnlen(fc_host_symbolic_name(lport->host), 255);
150 		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rsnn) + len,
151 				    FC_FST_DIR, FC_NS_SUBTYPE);
152 		put_unaligned_be64(lport->wwnn, &ct->payload.snn.fr_wwn);
153 		strncpy(ct->payload.snn.fr_name,
154 			fc_host_symbolic_name(lport->host), len);
155 		ct->payload.snn.fr_name_len = len;
156 		break;
157 
158 	default:
159 		return -EINVAL;
160 	}
161 	*r_ctl = FC_RCTL_DD_UNSOL_CTL;
162 	*fh_type = FC_TYPE_CT;
163 	return 0;
164 }
165 
fc_ct_ms_fill_attr(struct fc_fdmi_attr_entry * entry,const char * in,size_t len)166 static inline void fc_ct_ms_fill_attr(struct fc_fdmi_attr_entry *entry,
167 				    const char *in, size_t len)
168 {
169 	int copied;
170 
171 	copied = strscpy(entry->value, in, len);
172 	if (copied > 0 && copied + 1 < len)
173 		memset(entry->value + copied + 1, 0, len - copied - 1);
174 }
175 
176 /**
177  * fc_ct_ms_fill() - Fill in a mgmt service request frame
178  * @lport: local port.
179  * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
180  * @fp: frame to contain payload.
181  * @op: CT opcode.
182  * @r_ctl: pointer to FC header R_CTL.
183  * @fh_type: pointer to FC-4 type.
184  */
fc_ct_ms_fill(struct fc_lport * lport,u32 fc_id,struct fc_frame * fp,unsigned int op,enum fc_rctl * r_ctl,enum fc_fh_type * fh_type)185 static inline int fc_ct_ms_fill(struct fc_lport *lport,
186 		      u32 fc_id, struct fc_frame *fp,
187 		      unsigned int op, enum fc_rctl *r_ctl,
188 		      enum fc_fh_type *fh_type)
189 {
190 	struct fc_ct_req *ct;
191 	size_t len;
192 	struct fc_fdmi_attr_entry *entry;
193 	struct fs_fdmi_attrs *hba_attrs;
194 	int numattrs = 0;
195 	struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
196 
197 	switch (op) {
198 	case FC_FDMI_RHBA:
199 		numattrs = 11;
200 		len = sizeof(struct fc_fdmi_rhba);
201 		len -= sizeof(struct fc_fdmi_attr_entry);
202 		len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
203 		len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
204 		len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
205 		len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
206 		len += FC_FDMI_HBA_ATTR_MODEL_LEN;
207 		len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN;
208 		len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN;
209 		len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN;
210 		len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
211 		len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
212 		len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
213 		len += FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN;
214 
215 		if (fc_host->fdmi_version == FDMI_V2) {
216 			numattrs += 7;
217 			len += FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN;
218 			len += FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN;
219 			len += FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN;
220 			len += FC_FDMI_HBA_ATTR_FABRICNAME_LEN;
221 			len += FC_FDMI_HBA_ATTR_BIOSVERSION_LEN;
222 			len += FC_FDMI_HBA_ATTR_BIOSSTATE_LEN;
223 			len += FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN;
224 		}
225 
226 		ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
227 				FC_FDMI_SUBTYPE);
228 
229 		/* HBA Identifier */
230 		put_unaligned_be64(lport->wwpn, &ct->payload.rhba.hbaid.id);
231 		/* Number of Ports - always 1 */
232 		put_unaligned_be32(1, &ct->payload.rhba.port.numport);
233 		/* Port Name */
234 		put_unaligned_be64(lport->wwpn,
235 				   &ct->payload.rhba.port.port[0].portname);
236 
237 		/* HBA Attributes */
238 		put_unaligned_be32(numattrs,
239 				   &ct->payload.rhba.hba_attrs.numattrs);
240 		hba_attrs = &ct->payload.rhba.hba_attrs;
241 		entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr;
242 		/* NodeName*/
243 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
244 		len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
245 		put_unaligned_be16(FC_FDMI_HBA_ATTR_NODENAME,
246 				   &entry->type);
247 		put_unaligned_be16(len, &entry->len);
248 		put_unaligned_be64(lport->wwnn,
249 				   (__be64 *)&entry->value);
250 
251 		/* Manufacturer */
252 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
253 					FC_FDMI_HBA_ATTR_NODENAME_LEN);
254 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
255 		len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
256 		put_unaligned_be16(FC_FDMI_HBA_ATTR_MANUFACTURER,
257 				   &entry->type);
258 		put_unaligned_be16(len, &entry->len);
259 		fc_ct_ms_fill_attr(entry,
260 			fc_host_manufacturer(lport->host),
261 			FC_FDMI_HBA_ATTR_MANUFACTURER_LEN);
262 
263 		/* SerialNumber */
264 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
265 					FC_FDMI_HBA_ATTR_MANUFACTURER_LEN);
266 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
267 		len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
268 		put_unaligned_be16(FC_FDMI_HBA_ATTR_SERIALNUMBER,
269 				   &entry->type);
270 		put_unaligned_be16(len, &entry->len);
271 		fc_ct_ms_fill_attr(entry,
272 			fc_host_serial_number(lport->host),
273 			FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN);
274 
275 		/* Model */
276 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
277 					FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN);
278 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
279 		len += FC_FDMI_HBA_ATTR_MODEL_LEN;
280 		put_unaligned_be16(FC_FDMI_HBA_ATTR_MODEL,
281 				   &entry->type);
282 		put_unaligned_be16(len, &entry->len);
283 		fc_ct_ms_fill_attr(entry,
284 			fc_host_model(lport->host),
285 			FC_FDMI_HBA_ATTR_MODEL_LEN);
286 
287 		/* Model Description */
288 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
289 					FC_FDMI_HBA_ATTR_MODEL_LEN);
290 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
291 		len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN;
292 		put_unaligned_be16(FC_FDMI_HBA_ATTR_MODELDESCRIPTION,
293 				   &entry->type);
294 		put_unaligned_be16(len, &entry->len);
295 		fc_ct_ms_fill_attr(entry,
296 			fc_host_model_description(lport->host),
297 			FC_FDMI_HBA_ATTR_MODELDESCR_LEN);
298 
299 		/* Hardware Version */
300 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
301 					FC_FDMI_HBA_ATTR_MODELDESCR_LEN);
302 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
303 		len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN;
304 		put_unaligned_be16(FC_FDMI_HBA_ATTR_HARDWAREVERSION,
305 				   &entry->type);
306 		put_unaligned_be16(len, &entry->len);
307 		fc_ct_ms_fill_attr(entry,
308 			fc_host_hardware_version(lport->host),
309 			FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN);
310 
311 		/* Driver Version */
312 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
313 					FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN);
314 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
315 		len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN;
316 		put_unaligned_be16(FC_FDMI_HBA_ATTR_DRIVERVERSION,
317 				   &entry->type);
318 		put_unaligned_be16(len, &entry->len);
319 		fc_ct_ms_fill_attr(entry,
320 			fc_host_driver_version(lport->host),
321 			FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN);
322 
323 		/* OptionROM Version */
324 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
325 					FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN);
326 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
327 		len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
328 		put_unaligned_be16(FC_FDMI_HBA_ATTR_OPTIONROMVERSION,
329 				   &entry->type);
330 		put_unaligned_be16(len, &entry->len);
331 		fc_ct_ms_fill_attr(entry,
332 			"unknown",
333 			FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN);
334 
335 		/* Firmware Version */
336 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
337 					FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN);
338 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
339 		len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
340 		put_unaligned_be16(FC_FDMI_HBA_ATTR_FIRMWAREVERSION,
341 				   &entry->type);
342 		put_unaligned_be16(len, &entry->len);
343 		fc_ct_ms_fill_attr(entry,
344 			fc_host_firmware_version(lport->host),
345 			FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN);
346 
347 		/* OS Name and Version */
348 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
349 					FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN);
350 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
351 		len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
352 		put_unaligned_be16(FC_FDMI_HBA_ATTR_OSNAMEVERSION,
353 				   &entry->type);
354 		put_unaligned_be16(len, &entry->len);
355 		snprintf((char *)&entry->value,
356 			FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN,
357 			"%s v%s",
358 			init_utsname()->sysname,
359 			init_utsname()->release);
360 
361 		/* Max CT payload */
362 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
363 					FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN);
364 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
365 		len += FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN;
366 		put_unaligned_be16(FC_FDMI_HBA_ATTR_MAXCTPAYLOAD,
367 				&entry->type);
368 		put_unaligned_be16(len, &entry->len);
369 		put_unaligned_be32(fc_host_max_ct_payload(lport->host),
370 				&entry->value);
371 
372 		if (fc_host->fdmi_version == FDMI_V2) {
373 			/* Node symbolic name */
374 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
375 					FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN);
376 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
377 			len += FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN;
378 			put_unaligned_be16(FC_FDMI_HBA_ATTR_NODESYMBLNAME,
379 					&entry->type);
380 			put_unaligned_be16(len, &entry->len);
381 			fc_ct_ms_fill_attr(entry,
382 					fc_host_symbolic_name(lport->host),
383 					FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN);
384 
385 			/* Vendor specific info */
386 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
387 					FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN);
388 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
389 			len += FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN;
390 			put_unaligned_be16(FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO,
391 					&entry->type);
392 			put_unaligned_be16(len, &entry->len);
393 			put_unaligned_be32(0,
394 					&entry->value);
395 
396 			/* Number of ports */
397 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
398 					FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN);
399 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
400 			len += FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN;
401 			put_unaligned_be16(FC_FDMI_HBA_ATTR_NUMBEROFPORTS,
402 					&entry->type);
403 			put_unaligned_be16(len, &entry->len);
404 			put_unaligned_be32(fc_host_num_ports(lport->host),
405 					&entry->value);
406 
407 			/* Fabric name */
408 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
409 					FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN);
410 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
411 			len += FC_FDMI_HBA_ATTR_FABRICNAME_LEN;
412 			put_unaligned_be16(FC_FDMI_HBA_ATTR_FABRICNAME,
413 					&entry->type);
414 			put_unaligned_be16(len, &entry->len);
415 			put_unaligned_be64(fc_host_fabric_name(lport->host),
416 					&entry->value);
417 
418 			/* BIOS version */
419 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
420 					FC_FDMI_HBA_ATTR_FABRICNAME_LEN);
421 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
422 			len += FC_FDMI_HBA_ATTR_BIOSVERSION_LEN;
423 			put_unaligned_be16(FC_FDMI_HBA_ATTR_BIOSVERSION,
424 					&entry->type);
425 			put_unaligned_be16(len, &entry->len);
426 			fc_ct_ms_fill_attr(entry,
427 					fc_host_bootbios_version(lport->host),
428 					FC_FDMI_HBA_ATTR_BIOSVERSION_LEN);
429 
430 			/* BIOS state */
431 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
432 					FC_FDMI_HBA_ATTR_BIOSVERSION_LEN);
433 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
434 			len += FC_FDMI_HBA_ATTR_BIOSSTATE_LEN;
435 			put_unaligned_be16(FC_FDMI_HBA_ATTR_BIOSSTATE,
436 					&entry->type);
437 			put_unaligned_be16(len, &entry->len);
438 			put_unaligned_be32(fc_host_bootbios_state(lport->host),
439 					&entry->value);
440 
441 			/* Vendor identifier  */
442 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
443 					FC_FDMI_HBA_ATTR_BIOSSTATE_LEN);
444 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
445 			len += FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN;
446 			put_unaligned_be16(FC_FDMI_HBA_ATTR_VENDORIDENTIFIER,
447 					&entry->type);
448 			put_unaligned_be16(len, &entry->len);
449 			fc_ct_ms_fill_attr(entry,
450 					fc_host_vendor_identifier(lport->host),
451 					FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN);
452 		}
453 
454 		break;
455 	case FC_FDMI_RPA:
456 		numattrs = 6;
457 		len = sizeof(struct fc_fdmi_rpa);
458 		len -= sizeof(struct fc_fdmi_attr_entry);
459 		len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
460 		len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
461 		len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
462 		len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
463 		len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN;
464 		len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
465 		len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
466 
467 
468 		if (fc_host->fdmi_version == FDMI_V2) {
469 			numattrs += 10;
470 
471 			len += FC_FDMI_PORT_ATTR_NODENAME_LEN;
472 			len += FC_FDMI_PORT_ATTR_PORTNAME_LEN;
473 			len += FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN;
474 			len += FC_FDMI_PORT_ATTR_PORTTYPE_LEN;
475 			len += FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN;
476 			len += FC_FDMI_PORT_ATTR_FABRICNAME_LEN;
477 			len += FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN;
478 			len += FC_FDMI_PORT_ATTR_PORTSTATE_LEN;
479 			len += FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN;
480 			len += FC_FDMI_PORT_ATTR_PORTID_LEN;
481 
482 		}
483 
484 		ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
485 				    FC_FDMI_SUBTYPE);
486 
487 		/* Port Name */
488 		put_unaligned_be64(lport->wwpn,
489 				   &ct->payload.rpa.port.portname);
490 
491 		/* Port Attributes */
492 		put_unaligned_be32(numattrs,
493 				   &ct->payload.rpa.hba_attrs.numattrs);
494 
495 		hba_attrs = &ct->payload.rpa.hba_attrs;
496 		entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr;
497 
498 		/* FC4 types */
499 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
500 		len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
501 		put_unaligned_be16(FC_FDMI_PORT_ATTR_FC4TYPES,
502 				   &entry->type);
503 		put_unaligned_be16(len, &entry->len);
504 		memcpy(&entry->value, fc_host_supported_fc4s(lport->host),
505 		       FC_FDMI_PORT_ATTR_FC4TYPES_LEN);
506 
507 		/* Supported Speed */
508 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
509 					FC_FDMI_PORT_ATTR_FC4TYPES_LEN);
510 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
511 		len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
512 		put_unaligned_be16(FC_FDMI_PORT_ATTR_SUPPORTEDSPEED,
513 				   &entry->type);
514 		put_unaligned_be16(len, &entry->len);
515 
516 		put_unaligned_be32(fc_host_supported_speeds(lport->host),
517 				   &entry->value);
518 
519 		/* Current Port Speed */
520 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
521 					FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN);
522 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
523 		len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
524 		put_unaligned_be16(FC_FDMI_PORT_ATTR_CURRENTPORTSPEED,
525 				   &entry->type);
526 		put_unaligned_be16(len, &entry->len);
527 		put_unaligned_be32(lport->link_speed,
528 				   &entry->value);
529 
530 		/* Max Frame Size */
531 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
532 					FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN);
533 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
534 		len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN;
535 		put_unaligned_be16(FC_FDMI_PORT_ATTR_MAXFRAMESIZE,
536 				   &entry->type);
537 		put_unaligned_be16(len, &entry->len);
538 		put_unaligned_be32(fc_host_maxframe_size(lport->host),
539 				   &entry->value);
540 
541 		/* OS Device Name */
542 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
543 					FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN);
544 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
545 		len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
546 		put_unaligned_be16(FC_FDMI_PORT_ATTR_OSDEVICENAME,
547 				   &entry->type);
548 		put_unaligned_be16(len, &entry->len);
549 		/* Use the sysfs device name */
550 		fc_ct_ms_fill_attr(entry,
551 			dev_name(&lport->host->shost_gendev),
552 			strnlen(dev_name(&lport->host->shost_gendev),
553 				FC_FDMI_PORT_ATTR_HOSTNAME_LEN));
554 
555 		/* Host Name */
556 		entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
557 					FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN);
558 		len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
559 		len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
560 		put_unaligned_be16(FC_FDMI_PORT_ATTR_HOSTNAME,
561 				   &entry->type);
562 		put_unaligned_be16(len, &entry->len);
563 		if (strlen(fc_host_system_hostname(lport->host)))
564 			fc_ct_ms_fill_attr(entry,
565 				fc_host_system_hostname(lport->host),
566 				strnlen(fc_host_system_hostname(lport->host),
567 					FC_FDMI_PORT_ATTR_HOSTNAME_LEN));
568 		else
569 			fc_ct_ms_fill_attr(entry,
570 				init_utsname()->nodename,
571 				FC_FDMI_PORT_ATTR_HOSTNAME_LEN);
572 
573 
574 		if (fc_host->fdmi_version == FDMI_V2) {
575 
576 			/* Node name */
577 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
578 					FC_FDMI_PORT_ATTR_HOSTNAME_LEN);
579 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
580 			len += FC_FDMI_PORT_ATTR_NODENAME_LEN;
581 			put_unaligned_be16(FC_FDMI_PORT_ATTR_NODENAME,
582 					&entry->type);
583 			put_unaligned_be16(len, &entry->len);
584 			put_unaligned_be64(fc_host_node_name(lport->host),
585 					&entry->value);
586 
587 			/* Port name  */
588 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
589 					FC_FDMI_PORT_ATTR_NODENAME_LEN);
590 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
591 			len += FC_FDMI_PORT_ATTR_PORTNAME_LEN;
592 			put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTNAME,
593 					&entry->type);
594 			put_unaligned_be16(len, &entry->len);
595 			put_unaligned_be64(lport->wwpn,
596 					&entry->value);
597 
598 			/* Port symbolic name */
599 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
600 					FC_FDMI_PORT_ATTR_PORTNAME_LEN);
601 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
602 			len += FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN;
603 			put_unaligned_be16(FC_FDMI_PORT_ATTR_SYMBOLICNAME,
604 					&entry->type);
605 			put_unaligned_be16(len, &entry->len);
606 			fc_ct_ms_fill_attr(entry,
607 					fc_host_symbolic_name(lport->host),
608 					FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN);
609 
610 			/* Port type */
611 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
612 					FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN);
613 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
614 			len += FC_FDMI_PORT_ATTR_PORTTYPE_LEN;
615 			put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTTYPE,
616 					&entry->type);
617 			put_unaligned_be16(len, &entry->len);
618 			put_unaligned_be32(fc_host_port_type(lport->host),
619 					&entry->value);
620 
621 			/* Supported class of service */
622 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
623 					FC_FDMI_PORT_ATTR_PORTTYPE_LEN);
624 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
625 			len += FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN;
626 			put_unaligned_be16(FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC,
627 					&entry->type);
628 			put_unaligned_be16(len, &entry->len);
629 			put_unaligned_be32(fc_host_supported_classes(lport->host),
630 					&entry->value);
631 
632 			/* Port Fabric name */
633 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
634 					FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN);
635 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
636 			len += FC_FDMI_PORT_ATTR_FABRICNAME_LEN;
637 			put_unaligned_be16(FC_FDMI_PORT_ATTR_FABRICNAME,
638 					&entry->type);
639 			put_unaligned_be16(len, &entry->len);
640 			put_unaligned_be64(fc_host_fabric_name(lport->host),
641 					&entry->value);
642 
643 			/* Port active FC-4 */
644 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
645 					FC_FDMI_PORT_ATTR_FABRICNAME_LEN);
646 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
647 			len += FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN;
648 			put_unaligned_be16(FC_FDMI_PORT_ATTR_CURRENTFC4TYPE,
649 					&entry->type);
650 			put_unaligned_be16(len, &entry->len);
651 			memcpy(&entry->value, fc_host_active_fc4s(lport->host),
652 					FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN);
653 
654 			/* Port state */
655 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
656 					FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN);
657 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
658 			len += FC_FDMI_PORT_ATTR_PORTSTATE_LEN;
659 			put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTSTATE,
660 					&entry->type);
661 			put_unaligned_be16(len, &entry->len);
662 			put_unaligned_be32(fc_host_port_state(lport->host),
663 					&entry->value);
664 
665 			/* Discovered ports */
666 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
667 					FC_FDMI_PORT_ATTR_PORTSTATE_LEN);
668 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
669 			len += FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN;
670 			put_unaligned_be16(FC_FDMI_PORT_ATTR_DISCOVEREDPORTS,
671 					&entry->type);
672 			put_unaligned_be16(len, &entry->len);
673 			put_unaligned_be32(fc_host_num_discovered_ports(lport->host),
674 					&entry->value);
675 
676 			/* Port ID */
677 			entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
678 					FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN);
679 			len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
680 			len += FC_FDMI_PORT_ATTR_PORTID_LEN;
681 			put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTID,
682 					&entry->type);
683 			put_unaligned_be16(len, &entry->len);
684 			put_unaligned_be32(fc_host_port_id(lport->host),
685 					&entry->value);
686 		}
687 
688 		break;
689 	case FC_FDMI_DPRT:
690 		len = sizeof(struct fc_fdmi_dprt);
691 		ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
692 				    FC_FDMI_SUBTYPE);
693 		/* Port Name */
694 		put_unaligned_be64(lport->wwpn,
695 				   &ct->payload.dprt.port.portname);
696 		break;
697 	case FC_FDMI_DHBA:
698 		len = sizeof(struct fc_fdmi_dhba);
699 		ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
700 				    FC_FDMI_SUBTYPE);
701 		/* HBA Identifier */
702 		put_unaligned_be64(lport->wwpn, &ct->payload.dhba.hbaid.id);
703 		break;
704 	default:
705 		return -EINVAL;
706 	}
707 	*r_ctl = FC_RCTL_DD_UNSOL_CTL;
708 	*fh_type = FC_TYPE_CT;
709 	return 0;
710 }
711 
712 /**
713  * fc_ct_fill() - Fill in a common transport service request frame
714  * @lport: local port.
715  * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
716  * @fp: frame to contain payload.
717  * @op: CT opcode.
718  * @r_ctl: pointer to FC header R_CTL.
719  * @fh_type: pointer to FC-4 type.
720  */
fc_ct_fill(struct fc_lport * lport,u32 fc_id,struct fc_frame * fp,unsigned int op,enum fc_rctl * r_ctl,enum fc_fh_type * fh_type,u32 * did)721 static inline int fc_ct_fill(struct fc_lport *lport,
722 		      u32 fc_id, struct fc_frame *fp,
723 		      unsigned int op, enum fc_rctl *r_ctl,
724 		      enum fc_fh_type *fh_type, u32 *did)
725 {
726 	int rc = -EINVAL;
727 
728 	switch (fc_id) {
729 	case FC_FID_MGMT_SERV:
730 		rc = fc_ct_ms_fill(lport, fc_id, fp, op, r_ctl, fh_type);
731 		*did = FC_FID_MGMT_SERV;
732 		break;
733 	case FC_FID_DIR_SERV:
734 	default:
735 		rc = fc_ct_ns_fill(lport, fc_id, fp, op, r_ctl, fh_type);
736 		*did = FC_FID_DIR_SERV;
737 		break;
738 	}
739 
740 	return rc;
741 }
742 /**
743  * fc_plogi_fill - Fill in plogi request frame
744  */
fc_plogi_fill(struct fc_lport * lport,struct fc_frame * fp,unsigned int op)745 static inline void fc_plogi_fill(struct fc_lport *lport, struct fc_frame *fp,
746 				 unsigned int op)
747 {
748 	struct fc_els_flogi *plogi;
749 	struct fc_els_csp *csp;
750 	struct fc_els_cssp *cp;
751 
752 	plogi = fc_frame_payload_get(fp, sizeof(*plogi));
753 	memset(plogi, 0, sizeof(*plogi));
754 	plogi->fl_cmd = (u8) op;
755 	put_unaligned_be64(lport->wwpn, &plogi->fl_wwpn);
756 	put_unaligned_be64(lport->wwnn, &plogi->fl_wwnn);
757 
758 	csp = &plogi->fl_csp;
759 	csp->sp_hi_ver = 0x20;
760 	csp->sp_lo_ver = 0x20;
761 	csp->sp_bb_cred = htons(10);	/* this gets set by gateway */
762 	csp->sp_bb_data = htons((u16) lport->mfs);
763 	cp = &plogi->fl_cssp[3 - 1];	/* class 3 parameters */
764 	cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
765 	csp->sp_features = htons(FC_SP_FT_CIRO);
766 	csp->sp_tot_seq = htons(255);	/* seq. we accept */
767 	csp->sp_rel_off = htons(0x1f);
768 	csp->sp_e_d_tov = htonl(lport->e_d_tov);
769 
770 	cp->cp_rdfs = htons((u16) lport->mfs);
771 	cp->cp_con_seq = htons(255);
772 	cp->cp_open_seq = 1;
773 }
774 
775 /**
776  * fc_flogi_fill - Fill in a flogi request frame.
777  */
fc_flogi_fill(struct fc_lport * lport,struct fc_frame * fp)778 static inline void fc_flogi_fill(struct fc_lport *lport, struct fc_frame *fp)
779 {
780 	struct fc_els_csp *sp;
781 	struct fc_els_cssp *cp;
782 	struct fc_els_flogi *flogi;
783 
784 	flogi = fc_frame_payload_get(fp, sizeof(*flogi));
785 	memset(flogi, 0, sizeof(*flogi));
786 	flogi->fl_cmd = (u8) ELS_FLOGI;
787 	put_unaligned_be64(lport->wwpn, &flogi->fl_wwpn);
788 	put_unaligned_be64(lport->wwnn, &flogi->fl_wwnn);
789 	sp = &flogi->fl_csp;
790 	sp->sp_hi_ver = 0x20;
791 	sp->sp_lo_ver = 0x20;
792 	sp->sp_bb_cred = htons(10);	/* this gets set by gateway */
793 	sp->sp_bb_data = htons((u16) lport->mfs);
794 	cp = &flogi->fl_cssp[3 - 1];	/* class 3 parameters */
795 	cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
796 	if (lport->does_npiv)
797 		sp->sp_features = htons(FC_SP_FT_NPIV);
798 }
799 
800 /**
801  * fc_fdisc_fill - Fill in a fdisc request frame.
802  */
fc_fdisc_fill(struct fc_lport * lport,struct fc_frame * fp)803 static inline void fc_fdisc_fill(struct fc_lport *lport, struct fc_frame *fp)
804 {
805 	struct fc_els_csp *sp;
806 	struct fc_els_cssp *cp;
807 	struct fc_els_flogi *fdisc;
808 
809 	fdisc = fc_frame_payload_get(fp, sizeof(*fdisc));
810 	memset(fdisc, 0, sizeof(*fdisc));
811 	fdisc->fl_cmd = (u8) ELS_FDISC;
812 	put_unaligned_be64(lport->wwpn, &fdisc->fl_wwpn);
813 	put_unaligned_be64(lport->wwnn, &fdisc->fl_wwnn);
814 	sp = &fdisc->fl_csp;
815 	sp->sp_hi_ver = 0x20;
816 	sp->sp_lo_ver = 0x20;
817 	sp->sp_bb_cred = htons(10);	/* this gets set by gateway */
818 	sp->sp_bb_data = htons((u16) lport->mfs);
819 	cp = &fdisc->fl_cssp[3 - 1];	/* class 3 parameters */
820 	cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
821 }
822 
823 /**
824  * fc_logo_fill - Fill in a logo request frame.
825  */
fc_logo_fill(struct fc_lport * lport,struct fc_frame * fp)826 static inline void fc_logo_fill(struct fc_lport *lport, struct fc_frame *fp)
827 {
828 	struct fc_els_logo *logo;
829 
830 	logo = fc_frame_payload_get(fp, sizeof(*logo));
831 	memset(logo, 0, sizeof(*logo));
832 	logo->fl_cmd = ELS_LOGO;
833 	hton24(logo->fl_n_port_id, lport->port_id);
834 	logo->fl_n_port_wwn = htonll(lport->wwpn);
835 }
836 
837 /**
838  * fc_rtv_fill - Fill in RTV (read timeout value) request frame.
839  */
fc_rtv_fill(struct fc_lport * lport,struct fc_frame * fp)840 static inline void fc_rtv_fill(struct fc_lport *lport, struct fc_frame *fp)
841 {
842 	struct fc_els_rtv *rtv;
843 
844 	rtv = fc_frame_payload_get(fp, sizeof(*rtv));
845 	memset(rtv, 0, sizeof(*rtv));
846 	rtv->rtv_cmd = ELS_RTV;
847 }
848 
849 /**
850  * fc_rec_fill - Fill in rec request frame
851  */
fc_rec_fill(struct fc_lport * lport,struct fc_frame * fp)852 static inline void fc_rec_fill(struct fc_lport *lport, struct fc_frame *fp)
853 {
854 	struct fc_els_rec *rec;
855 	struct fc_exch *ep = fc_seq_exch(fr_seq(fp));
856 
857 	rec = fc_frame_payload_get(fp, sizeof(*rec));
858 	memset(rec, 0, sizeof(*rec));
859 	rec->rec_cmd = ELS_REC;
860 	hton24(rec->rec_s_id, lport->port_id);
861 	rec->rec_ox_id = htons(ep->oxid);
862 	rec->rec_rx_id = htons(ep->rxid);
863 }
864 
865 /**
866  * fc_prli_fill - Fill in prli request frame
867  */
fc_prli_fill(struct fc_lport * lport,struct fc_frame * fp)868 static inline void fc_prli_fill(struct fc_lport *lport, struct fc_frame *fp)
869 {
870 	struct {
871 		struct fc_els_prli prli;
872 		struct fc_els_spp spp;
873 	} *pp;
874 
875 	pp = fc_frame_payload_get(fp, sizeof(*pp));
876 	memset(pp, 0, sizeof(*pp));
877 	pp->prli.prli_cmd = ELS_PRLI;
878 	pp->prli.prli_spp_len = sizeof(struct fc_els_spp);
879 	pp->prli.prli_len = htons(sizeof(*pp));
880 	pp->spp.spp_type = FC_TYPE_FCP;
881 	pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR;
882 	pp->spp.spp_params = htonl(lport->service_params);
883 }
884 
885 /**
886  * fc_scr_fill - Fill in a scr request frame.
887  */
fc_scr_fill(struct fc_lport * lport,struct fc_frame * fp)888 static inline void fc_scr_fill(struct fc_lport *lport, struct fc_frame *fp)
889 {
890 	struct fc_els_scr *scr;
891 
892 	scr = fc_frame_payload_get(fp, sizeof(*scr));
893 	memset(scr, 0, sizeof(*scr));
894 	scr->scr_cmd = ELS_SCR;
895 	scr->scr_reg_func = ELS_SCRF_FULL;
896 }
897 
898 /**
899  * fc_els_fill - Fill in an ELS  request frame
900  */
fc_els_fill(struct fc_lport * lport,u32 did,struct fc_frame * fp,unsigned int op,enum fc_rctl * r_ctl,enum fc_fh_type * fh_type)901 static inline int fc_els_fill(struct fc_lport *lport,
902 		       u32 did,
903 		       struct fc_frame *fp, unsigned int op,
904 		       enum fc_rctl *r_ctl, enum fc_fh_type *fh_type)
905 {
906 	switch (op) {
907 	case ELS_ADISC:
908 		fc_adisc_fill(lport, fp);
909 		break;
910 
911 	case ELS_PLOGI:
912 		fc_plogi_fill(lport, fp, ELS_PLOGI);
913 		break;
914 
915 	case ELS_FLOGI:
916 		fc_flogi_fill(lport, fp);
917 		break;
918 
919 	case ELS_FDISC:
920 		fc_fdisc_fill(lport, fp);
921 		break;
922 
923 	case ELS_LOGO:
924 		fc_logo_fill(lport, fp);
925 		break;
926 
927 	case ELS_RTV:
928 		fc_rtv_fill(lport, fp);
929 		break;
930 
931 	case ELS_REC:
932 		fc_rec_fill(lport, fp);
933 		break;
934 
935 	case ELS_PRLI:
936 		fc_prli_fill(lport, fp);
937 		break;
938 
939 	case ELS_SCR:
940 		fc_scr_fill(lport, fp);
941 		break;
942 
943 	default:
944 		return -EINVAL;
945 	}
946 
947 	*r_ctl = FC_RCTL_ELS_REQ;
948 	*fh_type = FC_TYPE_ELS;
949 	return 0;
950 }
951 #endif /* _FC_ENCODE_H_ */
952