[deliverable/linux.git] / include / scsi / fc_encode.h

/*
 * Copyright(c) 2008 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_ENCODE_H_
#define _FC_ENCODE_H_
#include <asm/unaligned.h>

struct fc_ns_rft {
	struct fc_ns_fid fid;	/* port ID object */
	struct fc_ns_fts fts;	/* FC4-types object */
};

struct fc_ct_req {
	struct fc_ct_hdr hdr;
	union {
		struct fc_ns_gid_ft gid;
		struct fc_ns_rn_id  rn;
		struct fc_ns_rft rft;
		struct fc_ns_fid fid;
		struct fc_ns_rsnn snn;
	} payload;
};

/**
 * fill FC header fields in specified fc_frame
 */
static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl,
				  u32 did, u32 sid, enum fc_fh_type type,
				  u32 f_ctl, u32 parm_offset)
{
	struct fc_frame_header *fh;

	fh = fc_frame_header_get(fp);
	WARN_ON(r_ctl == 0);
	fh->fh_r_ctl = r_ctl;
	hton24(fh->fh_d_id, did);
	hton24(fh->fh_s_id, sid);
	fh->fh_type = type;
	hton24(fh->fh_f_ctl, f_ctl);
	fh->fh_cs_ctl = 0;
	fh->fh_df_ctl = 0;
	fh->fh_parm_offset = htonl(parm_offset);
}

/**
 * fc_adisc_fill() - Fill in adisc request frame
 * @lport: local port.
 * @fp: fc frame where payload will be placed.
 */
static inline void fc_adisc_fill(struct fc_lport *lport, struct fc_frame *fp)
{
	struct fc_els_adisc *adisc;

	adisc = fc_frame_payload_get(fp, sizeof(*adisc));
	memset(adisc, 0, sizeof(*adisc));
	adisc->adisc_cmd = ELS_ADISC;
	put_unaligned_be64(lport->wwpn, &adisc->adisc_wwpn);
	put_unaligned_be64(lport->wwnn, &adisc->adisc_wwnn);
	hton24(adisc->adisc_port_id, fc_host_port_id(lport->host));
}

/**
 * fc_ct_hdr_fill- fills ct header and reset ct payload
 * returns pointer to ct request.
 */
static inline struct fc_ct_req *fc_ct_hdr_fill(const struct fc_frame *fp,
					       unsigned int op, size_t req_size)
{
	struct fc_ct_req *ct;
	size_t ct_plen;

	ct_plen  = sizeof(struct fc_ct_hdr) + req_size;
	ct = fc_frame_payload_get(fp, ct_plen);
	memset(ct, 0, ct_plen);
	ct->hdr.ct_rev = FC_CT_REV;
	ct->hdr.ct_fs_type = FC_FST_DIR;
	ct->hdr.ct_fs_subtype = FC_NS_SUBTYPE;
	ct->hdr.ct_cmd = htons((u16) op);
	return ct;
}

/**
 * fc_ct_fill() - Fill in a name service request frame
 * @lport: local port.
 * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
 * @fp: frame to contain payload.
 * @op: CT opcode.
 * @r_ctl: pointer to FC header R_CTL.
 * @fh_type: pointer to FC-4 type.
 */
static inline int 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)
{
	struct fc_ct_req *ct;

	switch (op) {
	case FC_NS_GPN_FT:
		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_gid_ft));
		ct->payload.gid.fn_fc4_type = FC_TYPE_FCP;
		break;

	case FC_NS_GPN_ID:
		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_fid));
		hton24(ct->payload.fid.fp_fid, fc_id);
		break;

	case FC_NS_RFT_ID:
		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rft));
		hton24(ct->payload.rft.fid.fp_fid,
		       fc_host_port_id(lport->host));
		ct->payload.rft.fts = lport->fcts;
		break;

	case FC_NS_RNN_ID:
		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rn_id));
		hton24(ct->payload.rn.fr_fid.fp_fid,
		       fc_host_port_id(lport->host));
		ct->payload.rft.fts = lport->fcts;
		put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn);
		break;

	case FC_NS_RSNN_NN:
		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rsnn));
		put_unaligned_be64(lport->wwnn, &ct->payload.snn.fr_wwn);
		strncpy(ct->payload.snn.fr_name,
			fc_host_symbolic_name(lport->host), 255);
		ct->payload.snn.fr_name_len =
			strnlen(ct->payload.snn.fr_name, 255);
		break;

	default:
		return -EINVAL;
	}
	*r_ctl = FC_RCTL_DD_UNSOL_CTL;
	*fh_type = FC_TYPE_CT;
	return 0;
}

/**
 * fc_plogi_fill - Fill in plogi request frame
 */
static inline void fc_plogi_fill(struct fc_lport *lport, struct fc_frame *fp,
				 unsigned int op)
{
	struct fc_els_flogi *plogi;
	struct fc_els_csp *csp;
	struct fc_els_cssp *cp;

	plogi = fc_frame_payload_get(fp, sizeof(*plogi));
	memset(plogi, 0, sizeof(*plogi));
	plogi->fl_cmd = (u8) op;
	put_unaligned_be64(lport->wwpn, &plogi->fl_wwpn);
	put_unaligned_be64(lport->wwnn, &plogi->fl_wwnn);

	csp = &plogi->fl_csp;
	csp->sp_hi_ver = 0x20;
	csp->sp_lo_ver = 0x20;
	csp->sp_bb_cred = htons(10);	/* this gets set by gateway */
	csp->sp_bb_data = htons((u16) lport->mfs);
	cp = &plogi->fl_cssp[3 - 1];	/* class 3 parameters */
	cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
	csp->sp_features = htons(FC_SP_FT_CIRO);
	csp->sp_tot_seq = htons(255);	/* seq. we accept */
	csp->sp_rel_off = htons(0x1f);
	csp->sp_e_d_tov = htonl(lport->e_d_tov);

	cp->cp_rdfs = htons((u16) lport->mfs);
	cp->cp_con_seq = htons(255);
	cp->cp_open_seq = 1;
}

/**
 * fc_flogi_fill - Fill in a flogi request frame.
 */
static inline void fc_flogi_fill(struct fc_lport *lport, struct fc_frame *fp)
{
	struct fc_els_csp *sp;
	struct fc_els_cssp *cp;
	struct fc_els_flogi *flogi;

	flogi = fc_frame_payload_get(fp, sizeof(*flogi));
	memset(flogi, 0, sizeof(*flogi));
	flogi->fl_cmd = (u8) ELS_FLOGI;
	put_unaligned_be64(lport->wwpn, &flogi->fl_wwpn);
	put_unaligned_be64(lport->wwnn, &flogi->fl_wwnn);
	sp = &flogi->fl_csp;
	sp->sp_hi_ver = 0x20;
	sp->sp_lo_ver = 0x20;
	sp->sp_bb_cred = htons(10);	/* this gets set by gateway */
	sp->sp_bb_data = htons((u16) lport->mfs);
	cp = &flogi->fl_cssp[3 - 1];	/* class 3 parameters */
	cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
	if (lport->does_npiv)
		sp->sp_features = htons(FC_SP_FT_NPIV);
}

/**
 * fc_fdisc_fill - Fill in a fdisc request frame.
 */
static inline void fc_fdisc_fill(struct fc_lport *lport, struct fc_frame *fp)
{
	struct fc_els_csp *sp;
	struct fc_els_cssp *cp;
	struct fc_els_flogi *fdisc;

	fdisc = fc_frame_payload_get(fp, sizeof(*fdisc));
	memset(fdisc, 0, sizeof(*fdisc));
	fdisc->fl_cmd = (u8) ELS_FDISC;
	put_unaligned_be64(lport->wwpn, &fdisc->fl_wwpn);
	put_unaligned_be64(lport->wwnn, &fdisc->fl_wwnn);
	sp = &fdisc->fl_csp;
	sp->sp_hi_ver = 0x20;
	sp->sp_lo_ver = 0x20;
	sp->sp_bb_cred = htons(10);	/* this gets set by gateway */
	sp->sp_bb_data = htons((u16) lport->mfs);
	cp = &fdisc->fl_cssp[3 - 1];	/* class 3 parameters */
	cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
}

/**
 * fc_logo_fill - Fill in a logo request frame.
 */
static inline void fc_logo_fill(struct fc_lport *lport, struct fc_frame *fp)
{
	struct fc_els_logo *logo;

	logo = fc_frame_payload_get(fp, sizeof(*logo));
	memset(logo, 0, sizeof(*logo));
	logo->fl_cmd = ELS_LOGO;
	hton24(logo->fl_n_port_id, fc_host_port_id(lport->host));
	logo->fl_n_port_wwn = htonll(lport->wwpn);
}

/**
 * fc_rtv_fill - Fill in RTV (read timeout value) request frame.
 */
static inline void fc_rtv_fill(struct fc_lport *lport, struct fc_frame *fp)
{
	struct fc_els_rtv *rtv;

	rtv = fc_frame_payload_get(fp, sizeof(*rtv));
	memset(rtv, 0, sizeof(*rtv));
	rtv->rtv_cmd = ELS_RTV;
}

/**
 * fc_rec_fill - Fill in rec request frame
 */
static inline void fc_rec_fill(struct fc_lport *lport, struct fc_frame *fp)
{
	struct fc_els_rec *rec;
	struct fc_exch *ep = fc_seq_exch(fr_seq(fp));

	rec = fc_frame_payload_get(fp, sizeof(*rec));
	memset(rec, 0, sizeof(*rec));
	rec->rec_cmd = ELS_REC;
	hton24(rec->rec_s_id, fc_host_port_id(lport->host));
	rec->rec_ox_id = htons(ep->oxid);
	rec->rec_rx_id = htons(ep->rxid);
}

/**
 * fc_prli_fill - Fill in prli request frame
 */
static inline void fc_prli_fill(struct fc_lport *lport, struct fc_frame *fp)
{
	struct {
		struct fc_els_prli prli;
		struct fc_els_spp spp;
	} *pp;

	pp = fc_frame_payload_get(fp, sizeof(*pp));
	memset(pp, 0, sizeof(*pp));
	pp->prli.prli_cmd = ELS_PRLI;
	pp->prli.prli_spp_len = sizeof(struct fc_els_spp);
	pp->prli.prli_len = htons(sizeof(*pp));
	pp->spp.spp_type = FC_TYPE_FCP;
	pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR;
	pp->spp.spp_params = htonl(lport->service_params);
}

/**
 * fc_scr_fill - Fill in a scr request frame.
 */
static inline void fc_scr_fill(struct fc_lport *lport, struct fc_frame *fp)
{
	struct fc_els_scr *scr;

	scr = fc_frame_payload_get(fp, sizeof(*scr));
	memset(scr, 0, sizeof(*scr));
	scr->scr_cmd = ELS_SCR;
	scr->scr_reg_func = ELS_SCRF_FULL;
}

/**
 * fc_els_fill - Fill in an ELS  request frame
 */
static inline int 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)
{
	switch (op) {
	case ELS_ADISC:
		fc_adisc_fill(lport, fp);
		break;

	case ELS_PLOGI:
		fc_plogi_fill(lport, fp, ELS_PLOGI);
		break;

	case ELS_FLOGI:
		fc_flogi_fill(lport, fp);
		break;

	case ELS_FDISC:
		fc_fdisc_fill(lport, fp);
		break;

	case ELS_LOGO:
		fc_logo_fill(lport, fp);
		break;

	case ELS_RTV:
		fc_rtv_fill(lport, fp);
		break;

	case ELS_REC:
		fc_rec_fill(lport, fp);
		break;

	case ELS_PRLI:
		fc_prli_fill(lport, fp);
		break;

	case ELS_SCR:
		fc_scr_fill(lport, fp);
		break;

	default:
		return -EINVAL;
	}

	*r_ctl = FC_RCTL_ELS_REQ;
	*fh_type = FC_TYPE_ELS;
	return 0;
}
#endif /* _FC_ENCODE_H_ */
Commit	Line	Data
42e9a92f RL	1	/*
	2	* Copyright(c) 2008 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_ENCODE_H_
	21	#define _FC_ENCODE_H_
	22	#include <asm/unaligned.h>
	23
	24	struct fc_ns_rft {
	25	struct fc_ns_fid fid; /* port ID object */
	26	struct fc_ns_fts fts; /* FC4-types object */
	27	};
	28
	29	struct fc_ct_req {
	30	struct fc_ct_hdr hdr;
	31	union {
	32	struct fc_ns_gid_ft gid;
	33	struct fc_ns_rn_id rn;
	34	struct fc_ns_rft rft;
2ab7e1ec	35	struct fc_ns_fid fid;
5baa17c3	36	struct fc_ns_rsnn snn;
42e9a92f RL	37	} payload;
	38	};
	39
	40	/**
	41	* fill FC header fields in specified fc_frame
	42	*/
	43	static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl,
	44	u32 did, u32 sid, enum fc_fh_type type,
	45	u32 f_ctl, u32 parm_offset)
	46	{
	47	struct fc_frame_header *fh;
	48
	49	fh = fc_frame_header_get(fp);
	50	WARN_ON(r_ctl == 0);
	51	fh->fh_r_ctl = r_ctl;
	52	hton24(fh->fh_d_id, did);
	53	hton24(fh->fh_s_id, sid);
	54	fh->fh_type = type;
	55	hton24(fh->fh_f_ctl, f_ctl);
	56	fh->fh_cs_ctl = 0;
	57	fh->fh_df_ctl = 0;
	58	fh->fh_parm_offset = htonl(parm_offset);
	59	}
	60
370c3bd0 JE	61	/**
	62	* fc_adisc_fill() - Fill in adisc request frame
	63	* @lport: local port.
	64	* @fp: fc frame where payload will be placed.
	65	*/
	66	static inline void fc_adisc_fill(struct fc_lport lport, struct fc_frame fp)
	67	{
	68	struct fc_els_adisc *adisc;
	69
	70	adisc = fc_frame_payload_get(fp, sizeof(*adisc));
	71	memset(adisc, 0, sizeof(*adisc));
	72	adisc->adisc_cmd = ELS_ADISC;
	73	put_unaligned_be64(lport->wwpn, &adisc->adisc_wwpn);
	74	put_unaligned_be64(lport->wwnn, &adisc->adisc_wwnn);
	75	hton24(adisc->adisc_port_id, fc_host_port_id(lport->host));
	76	}
	77
42e9a92f RL	78	/**
	79	* fc_ct_hdr_fill- fills ct header and reset ct payload
	80	* returns pointer to ct request.
	81	*/
	82	static inline struct fc_ct_req fc_ct_hdr_fill(const struct fc_frame fp,
	83	unsigned int op, size_t req_size)
	84	{
	85	struct fc_ct_req *ct;
	86	size_t ct_plen;
	87
	88	ct_plen = sizeof(struct fc_ct_hdr) + req_size;
	89	ct = fc_frame_payload_get(fp, ct_plen);
	90	memset(ct, 0, ct_plen);
	91	ct->hdr.ct_rev = FC_CT_REV;
	92	ct->hdr.ct_fs_type = FC_FST_DIR;
	93	ct->hdr.ct_fs_subtype = FC_NS_SUBTYPE;
	94	ct->hdr.ct_cmd = htons((u16) op);
	95	return ct;
	96	}
	97
	98	/**
2ab7e1ec JE	99	* fc_ct_fill() - Fill in a name service request frame
	100	* @lport: local port.
	101	* @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
	102	* @fp: frame to contain payload.
	103	* @op: CT opcode.
	104	* @r_ctl: pointer to FC header R_CTL.
	105	* @fh_type: pointer to FC-4 type.
42e9a92f	106	*/
a46f327a	107	static inline int fc_ct_fill(struct fc_lport *lport,
2ab7e1ec	108	u32 fc_id, struct fc_frame *fp,
a46f327a	109	unsigned int op, enum fc_rctl *r_ctl,
42e9a92f RL	110	enum fc_fh_type *fh_type)
	111	{
	112	struct fc_ct_req *ct;
	113
	114	switch (op) {
	115	case FC_NS_GPN_FT:
	116	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_gid_ft));
	117	ct->payload.gid.fn_fc4_type = FC_TYPE_FCP;
	118	break;
	119
2ab7e1ec JE	120	case FC_NS_GPN_ID:
	121	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_fid));
	122	hton24(ct->payload.fid.fp_fid, fc_id);
	123	break;
	124
42e9a92f RL	125	case FC_NS_RFT_ID:
	126	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rft));
	127	hton24(ct->payload.rft.fid.fp_fid,
	128	fc_host_port_id(lport->host));
	129	ct->payload.rft.fts = lport->fcts;
	130	break;
	131
c9c7bd7a	132	case FC_NS_RNN_ID:
42e9a92f RL	133	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rn_id));
	134	hton24(ct->payload.rn.fr_fid.fp_fid,
	135	fc_host_port_id(lport->host));
	136	ct->payload.rft.fts = lport->fcts;
c9c7bd7a	137	put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn);
42e9a92f RL	138	break;
42e9a92f RL	139
5baa17c3 CL	140	case FC_NS_RSNN_NN:
	141	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rsnn));
	142	put_unaligned_be64(lport->wwnn, &ct->payload.snn.fr_wwn);
	143	strncpy(ct->payload.snn.fr_name,
	144	fc_host_symbolic_name(lport->host), 255);
	145	ct->payload.snn.fr_name_len =
	146	strnlen(ct->payload.snn.fr_name, 255);
	147	break;
	148
42e9a92f	149	default:
42e9a92f RL	150	return -EINVAL;
	151	}
	152	*r_ctl = FC_RCTL_DD_UNSOL_CTL;
42e9a92f RL	153	*fh_type = FC_TYPE_CT;
	154	return 0;
	155	}
	156
	157	/**
	158	* fc_plogi_fill - Fill in plogi request frame
	159	*/
	160	static inline void fc_plogi_fill(struct fc_lport lport, struct fc_frame fp,
	161	unsigned int op)
	162	{
	163	struct fc_els_flogi *plogi;
	164	struct fc_els_csp *csp;
	165	struct fc_els_cssp *cp;
	166
	167	plogi = fc_frame_payload_get(fp, sizeof(*plogi));
	168	memset(plogi, 0, sizeof(*plogi));
	169	plogi->fl_cmd = (u8) op;
	170	put_unaligned_be64(lport->wwpn, &plogi->fl_wwpn);
	171	put_unaligned_be64(lport->wwnn, &plogi->fl_wwnn);
	172
	173	csp = &plogi->fl_csp;
	174	csp->sp_hi_ver = 0x20;
	175	csp->sp_lo_ver = 0x20;
	176	csp->sp_bb_cred = htons(10); /* this gets set by gateway */
	177	csp->sp_bb_data = htons((u16) lport->mfs);
	178	cp = &plogi->fl_cssp[3 - 1]; /* class 3 parameters */
	179	cp->cp_class = htons(FC_CPC_VALID \| FC_CPC_SEQ);
	180	csp->sp_features = htons(FC_SP_FT_CIRO);
	181	csp->sp_tot_seq = htons(255); /* seq. we accept */
	182	csp->sp_rel_off = htons(0x1f);
	183	csp->sp_e_d_tov = htonl(lport->e_d_tov);
	184
	185	cp->cp_rdfs = htons((u16) lport->mfs);
	186	cp->cp_con_seq = htons(255);
	187	cp->cp_open_seq = 1;
	188	}
	189
	190	/**
	191	* fc_flogi_fill - Fill in a flogi request frame.
	192	*/
	193	static inline void fc_flogi_fill(struct fc_lport lport, struct fc_frame fp)
	194	{
	195	struct fc_els_csp *sp;
	196	struct fc_els_cssp *cp;
	197	struct fc_els_flogi *flogi;
	198
	199	flogi = fc_frame_payload_get(fp, sizeof(*flogi));
	200	memset(flogi, 0, sizeof(*flogi));
	201	flogi->fl_cmd = (u8) ELS_FLOGI;
	202	put_unaligned_be64(lport->wwpn, &flogi->fl_wwpn);
	203	put_unaligned_be64(lport->wwnn, &flogi->fl_wwnn);
	204	sp = &flogi->fl_csp;
	205	sp->sp_hi_ver = 0x20;
	206	sp->sp_lo_ver = 0x20;
	207	sp->sp_bb_cred = htons(10); /* this gets set by gateway */
	208	sp->sp_bb_data = htons((u16) lport->mfs);
	209	cp = &flogi->fl_cssp[3 - 1]; /* class 3 parameters */
	210	cp->cp_class = htons(FC_CPC_VALID \| FC_CPC_SEQ);
db36c06c CL	211	if (lport->does_npiv)
	212	sp->sp_features = htons(FC_SP_FT_NPIV);
	213	}
	214
	215	/**
	216	* fc_fdisc_fill - Fill in a fdisc request frame.
	217	*/
	218	static inline void fc_fdisc_fill(struct fc_lport lport, struct fc_frame fp)
	219	{
	220	struct fc_els_csp *sp;
	221	struct fc_els_cssp *cp;
	222	struct fc_els_flogi *fdisc;
	223
	224	fdisc = fc_frame_payload_get(fp, sizeof(*fdisc));
	225	memset(fdisc, 0, sizeof(*fdisc));
	226	fdisc->fl_cmd = (u8) ELS_FDISC;
	227	put_unaligned_be64(lport->wwpn, &fdisc->fl_wwpn);
	228	put_unaligned_be64(lport->wwnn, &fdisc->fl_wwnn);
	229	sp = &fdisc->fl_csp;
	230	sp->sp_hi_ver = 0x20;
	231	sp->sp_lo_ver = 0x20;
	232	sp->sp_bb_cred = htons(10); /* this gets set by gateway */
	233	sp->sp_bb_data = htons((u16) lport->mfs);
	234	cp = &fdisc->fl_cssp[3 - 1]; /* class 3 parameters */
	235	cp->cp_class = htons(FC_CPC_VALID \| FC_CPC_SEQ);
42e9a92f RL	236	}
	237
	238	/**
	239	* fc_logo_fill - Fill in a logo request frame.
	240	*/
	241	static inline void fc_logo_fill(struct fc_lport lport, struct fc_frame fp)
	242	{
	243	struct fc_els_logo *logo;
	244
	245	logo = fc_frame_payload_get(fp, sizeof(*logo));
	246	memset(logo, 0, sizeof(*logo));
	247	logo->fl_cmd = ELS_LOGO;
	248	hton24(logo->fl_n_port_id, fc_host_port_id(lport->host));
	249	logo->fl_n_port_wwn = htonll(lport->wwpn);
	250	}
	251
	252	/**
	253	* fc_rtv_fill - Fill in RTV (read timeout value) request frame.
	254	*/
	255	static inline void fc_rtv_fill(struct fc_lport lport, struct fc_frame fp)
	256	{
	257	struct fc_els_rtv *rtv;
	258
	259	rtv = fc_frame_payload_get(fp, sizeof(*rtv));
	260	memset(rtv, 0, sizeof(*rtv));
	261	rtv->rtv_cmd = ELS_RTV;
	262	}
	263
	264	/**
	265	* fc_rec_fill - Fill in rec request frame
	266	*/
	267	static inline void fc_rec_fill(struct fc_lport lport, struct fc_frame fp)
	268	{
	269	struct fc_els_rec *rec;
	270	struct fc_exch *ep = fc_seq_exch(fr_seq(fp));
	271
	272	rec = fc_frame_payload_get(fp, sizeof(*rec));
	273	memset(rec, 0, sizeof(*rec));
	274	rec->rec_cmd = ELS_REC;
	275	hton24(rec->rec_s_id, fc_host_port_id(lport->host));
	276	rec->rec_ox_id = htons(ep->oxid);
	277	rec->rec_rx_id = htons(ep->rxid);
	278	}
	279
	280	/**
	281	* fc_prli_fill - Fill in prli request frame
	282	*/
	283	static inline void fc_prli_fill(struct fc_lport lport, struct fc_frame fp)
	284	{
	285	struct {
	286	struct fc_els_prli prli;
	287	struct fc_els_spp spp;
	288	} *pp;
	289
	290	pp = fc_frame_payload_get(fp, sizeof(*pp));
	291	memset(pp, 0, sizeof(*pp));
	292	pp->prli.prli_cmd = ELS_PRLI;
	293	pp->prli.prli_spp_len = sizeof(struct fc_els_spp);
	294	pp->prli.prli_len = htons(sizeof(*pp));
	295	pp->spp.spp_type = FC_TYPE_FCP;
	296	pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR;
	297	pp->spp.spp_params = htonl(lport->service_params);
	298	}
	299
300	/**
301	* fc_scr_fill - Fill in a scr request frame.
302	*/
303	static inline void fc_scr_fill(struct fc_lport lport, struct fc_frame fp)
304	{
305	struct fc_els_scr *scr;
306
307	scr = fc_frame_payload_get(fp, sizeof(*scr));
308	memset(scr, 0, sizeof(*scr));
309	scr->scr_cmd = ELS_SCR;
310	scr->scr_reg_func = ELS_SCRF_FULL;
311	}
312
313	/**
314	* fc_els_fill - Fill in an ELS request frame
315	*/
9fb9d328	316	static inline int fc_els_fill(struct fc_lport *lport,
a46f327a	317	u32 did,
42e9a92f	318	struct fc_frame *fp, unsigned int op,
a46f327a	319	enum fc_rctl r_ctl, enum fc_fh_type fh_type)
42e9a92f RL	320	{
42e9a92f RL	321	switch (op) {
370c3bd0 JE	322	case ELS_ADISC:
	323	fc_adisc_fill(lport, fp);
	324	break;
	325
42e9a92f RL	326	case ELS_PLOGI:
42e9a92f RL	327	fc_plogi_fill(lport, fp, ELS_PLOGI);
42e9a92f RL	328	break;
	329
	330	case ELS_FLOGI:
	331	fc_flogi_fill(lport, fp);
42e9a92f RL	332	break;
42e9a92f RL	333
db36c06c CL	334	case ELS_FDISC:
	335	fc_fdisc_fill(lport, fp);
	336	break;
	337
42e9a92f RL	338	case ELS_LOGO:
42e9a92f RL	339	fc_logo_fill(lport, fp);
42e9a92f RL	340	break;
	341
	342	case ELS_RTV:
	343	fc_rtv_fill(lport, fp);
42e9a92f RL	344	break;
	345
	346	case ELS_REC:
	347	fc_rec_fill(lport, fp);
42e9a92f RL	348	break;
	349
	350	case ELS_PRLI:
	351	fc_prli_fill(lport, fp);
42e9a92f RL	352	break;
	353
	354	case ELS_SCR:
	355	fc_scr_fill(lport, fp);
42e9a92f RL	356	break;
	357
	358	default:
42e9a92f RL	359	return -EINVAL;
	360	}
	361
	362	*r_ctl = FC_RCTL_ELS_REQ;
	363	*fh_type = FC_TYPE_ELS;
	364	return 0;
	365	}
	366	#endif /* _FC_ENCODE_H_ */