[linux-2.6-block.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;
		struct fc_ns_rspn spn;
	} 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));
		put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn);
		break;

	case FC_NS_RSPN_ID:
		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rspn));
		hton24(ct->payload.spn.fr_fid.fp_fid,
		       fc_host_port_id(lport->host));
		strncpy(ct->payload.spn.fr_name,
			fc_host_symbolic_name(lport->host), 255);
		ct->payload.spn.fr_name_len =
			strnlen(ct->payload.spn.fr_name, 255);
		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;
c9866a54	37	struct fc_ns_rspn spn;
42e9a92f RL	38	} payload;
	39	};
	40
	41	/**
	42	* fill FC header fields in specified fc_frame
	43	*/
	44	static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl,
	45	u32 did, u32 sid, enum fc_fh_type type,
	46	u32 f_ctl, u32 parm_offset)
	47	{
	48	struct fc_frame_header *fh;
	49
	50	fh = fc_frame_header_get(fp);
	51	WARN_ON(r_ctl == 0);
	52	fh->fh_r_ctl = r_ctl;
	53	hton24(fh->fh_d_id, did);
	54	hton24(fh->fh_s_id, sid);
	55	fh->fh_type = type;
	56	hton24(fh->fh_f_ctl, f_ctl);
	57	fh->fh_cs_ctl = 0;
	58	fh->fh_df_ctl = 0;
	59	fh->fh_parm_offset = htonl(parm_offset);
	60	}
	61
370c3bd0 JE	62	/**
	63	* fc_adisc_fill() - Fill in adisc request frame
	64	* @lport: local port.
	65	* @fp: fc frame where payload will be placed.
	66	*/
	67	static inline void fc_adisc_fill(struct fc_lport lport, struct fc_frame fp)
	68	{
	69	struct fc_els_adisc *adisc;
	70
	71	adisc = fc_frame_payload_get(fp, sizeof(*adisc));
	72	memset(adisc, 0, sizeof(*adisc));
	73	adisc->adisc_cmd = ELS_ADISC;
	74	put_unaligned_be64(lport->wwpn, &adisc->adisc_wwpn);
	75	put_unaligned_be64(lport->wwnn, &adisc->adisc_wwnn);
	76	hton24(adisc->adisc_port_id, fc_host_port_id(lport->host));
	77	}
	78
42e9a92f RL	79	/**
	80	* fc_ct_hdr_fill- fills ct header and reset ct payload
	81	* returns pointer to ct request.
	82	*/
	83	static inline struct fc_ct_req fc_ct_hdr_fill(const struct fc_frame fp,
	84	unsigned int op, size_t req_size)
	85	{
	86	struct fc_ct_req *ct;
	87	size_t ct_plen;
	88
	89	ct_plen = sizeof(struct fc_ct_hdr) + req_size;
	90	ct = fc_frame_payload_get(fp, ct_plen);
	91	memset(ct, 0, ct_plen);
	92	ct->hdr.ct_rev = FC_CT_REV;
	93	ct->hdr.ct_fs_type = FC_FST_DIR;
	94	ct->hdr.ct_fs_subtype = FC_NS_SUBTYPE;
	95	ct->hdr.ct_cmd = htons((u16) op);
	96	return ct;
	97	}
	98
	99	/**
2ab7e1ec JE	100	* fc_ct_fill() - Fill in a name service request frame
	101	* @lport: local port.
	102	* @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
	103	* @fp: frame to contain payload.
	104	* @op: CT opcode.
	105	* @r_ctl: pointer to FC header R_CTL.
	106	* @fh_type: pointer to FC-4 type.
42e9a92f	107	*/
a46f327a	108	static inline int fc_ct_fill(struct fc_lport *lport,
2ab7e1ec	109	u32 fc_id, struct fc_frame *fp,
a46f327a	110	unsigned int op, enum fc_rctl *r_ctl,
42e9a92f RL	111	enum fc_fh_type *fh_type)
	112	{
	113	struct fc_ct_req *ct;
	114
	115	switch (op) {
	116	case FC_NS_GPN_FT:
	117	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_gid_ft));
	118	ct->payload.gid.fn_fc4_type = FC_TYPE_FCP;
	119	break;
	120
2ab7e1ec JE	121	case FC_NS_GPN_ID:
	122	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_fid));
	123	hton24(ct->payload.fid.fp_fid, fc_id);
	124	break;
	125
42e9a92f RL	126	case FC_NS_RFT_ID:
	127	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rft));
	128	hton24(ct->payload.rft.fid.fp_fid,
	129	fc_host_port_id(lport->host));
	130	ct->payload.rft.fts = lport->fcts;
	131	break;
	132
c9c7bd7a	133	case FC_NS_RNN_ID:
42e9a92f RL	134	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rn_id));
	135	hton24(ct->payload.rn.fr_fid.fp_fid,
	136	fc_host_port_id(lport->host));
c9c7bd7a	137	put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn);
42e9a92f RL	138	break;
42e9a92f RL	139
c9866a54 CL	140	case FC_NS_RSPN_ID:
	141	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rspn));
	142	hton24(ct->payload.spn.fr_fid.fp_fid,
	143	fc_host_port_id(lport->host));
	144	strncpy(ct->payload.spn.fr_name,
	145	fc_host_symbolic_name(lport->host), 255);
	146	ct->payload.spn.fr_name_len =
	147	strnlen(ct->payload.spn.fr_name, 255);
	148	break;
	149
5baa17c3 CL	150	case FC_NS_RSNN_NN:
	151	ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rsnn));
	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), 255);
	155	ct->payload.snn.fr_name_len =
	156	strnlen(ct->payload.snn.fr_name, 255);
	157	break;
	158
42e9a92f	159	default:
42e9a92f RL	160	return -EINVAL;
	161	}
	162	*r_ctl = FC_RCTL_DD_UNSOL_CTL;
42e9a92f RL	163	*fh_type = FC_TYPE_CT;
	164	return 0;
	165	}
	166
	167	/**
	168	* fc_plogi_fill - Fill in plogi request frame
	169	*/
	170	static inline void fc_plogi_fill(struct fc_lport lport, struct fc_frame fp,
	171	unsigned int op)
	172	{
	173	struct fc_els_flogi *plogi;
	174	struct fc_els_csp *csp;
	175	struct fc_els_cssp *cp;
	176
	177	plogi = fc_frame_payload_get(fp, sizeof(*plogi));
	178	memset(plogi, 0, sizeof(*plogi));
	179	plogi->fl_cmd = (u8) op;
	180	put_unaligned_be64(lport->wwpn, &plogi->fl_wwpn);
	181	put_unaligned_be64(lport->wwnn, &plogi->fl_wwnn);
	182
	183	csp = &plogi->fl_csp;
	184	csp->sp_hi_ver = 0x20;
	185	csp->sp_lo_ver = 0x20;
	186	csp->sp_bb_cred = htons(10); /* this gets set by gateway */
	187	csp->sp_bb_data = htons((u16) lport->mfs);
	188	cp = &plogi->fl_cssp[3 - 1]; /* class 3 parameters */
	189	cp->cp_class = htons(FC_CPC_VALID \| FC_CPC_SEQ);
	190	csp->sp_features = htons(FC_SP_FT_CIRO);
	191	csp->sp_tot_seq = htons(255); /* seq. we accept */
	192	csp->sp_rel_off = htons(0x1f);
	193	csp->sp_e_d_tov = htonl(lport->e_d_tov);
	194
	195	cp->cp_rdfs = htons((u16) lport->mfs);
	196	cp->cp_con_seq = htons(255);
	197	cp->cp_open_seq = 1;
	198	}
	199
	200	/**
	201	* fc_flogi_fill - Fill in a flogi request frame.
	202	*/
	203	static inline void fc_flogi_fill(struct fc_lport lport, struct fc_frame fp)
	204	{
	205	struct fc_els_csp *sp;
	206	struct fc_els_cssp *cp;
	207	struct fc_els_flogi *flogi;
	208
	209	flogi = fc_frame_payload_get(fp, sizeof(*flogi));
	210	memset(flogi, 0, sizeof(*flogi));
	211	flogi->fl_cmd = (u8) ELS_FLOGI;
	212	put_unaligned_be64(lport->wwpn, &flogi->fl_wwpn);
	213	put_unaligned_be64(lport->wwnn, &flogi->fl_wwnn);
	214	sp = &flogi->fl_csp;
	215	sp->sp_hi_ver = 0x20;
	216	sp->sp_lo_ver = 0x20;
	217	sp->sp_bb_cred = htons(10); /* this gets set by gateway */
	218	sp->sp_bb_data = htons((u16) lport->mfs);
	219	cp = &flogi->fl_cssp[3 - 1]; /* class 3 parameters */
	220	cp->cp_class = htons(FC_CPC_VALID \| FC_CPC_SEQ);
db36c06c CL	221	if (lport->does_npiv)
	222	sp->sp_features = htons(FC_SP_FT_NPIV);
	223	}
	224
	225	/**
	226	* fc_fdisc_fill - Fill in a fdisc request frame.
	227	*/
	228	static inline void fc_fdisc_fill(struct fc_lport lport, struct fc_frame fp)
	229	{
	230	struct fc_els_csp *sp;
	231	struct fc_els_cssp *cp;
	232	struct fc_els_flogi *fdisc;
	233
	234	fdisc = fc_frame_payload_get(fp, sizeof(*fdisc));
	235	memset(fdisc, 0, sizeof(*fdisc));
	236	fdisc->fl_cmd = (u8) ELS_FDISC;
	237	put_unaligned_be64(lport->wwpn, &fdisc->fl_wwpn);
	238	put_unaligned_be64(lport->wwnn, &fdisc->fl_wwnn);
	239	sp = &fdisc->fl_csp;
	240	sp->sp_hi_ver = 0x20;
	241	sp->sp_lo_ver = 0x20;
	242	sp->sp_bb_cred = htons(10); /* this gets set by gateway */
	243	sp->sp_bb_data = htons((u16) lport->mfs);
	244	cp = &fdisc->fl_cssp[3 - 1]; /* class 3 parameters */
	245	cp->cp_class = htons(FC_CPC_VALID \| FC_CPC_SEQ);
42e9a92f RL	246	}
	247
	248	/**
	249	* fc_logo_fill - Fill in a logo request frame.
	250	*/
	251	static inline void fc_logo_fill(struct fc_lport lport, struct fc_frame fp)
	252	{
	253	struct fc_els_logo *logo;
	254
	255	logo = fc_frame_payload_get(fp, sizeof(*logo));
	256	memset(logo, 0, sizeof(*logo));
	257	logo->fl_cmd = ELS_LOGO;
	258	hton24(logo->fl_n_port_id, fc_host_port_id(lport->host));
	259	logo->fl_n_port_wwn = htonll(lport->wwpn);
	260	}
	261
	262	/**
	263	* fc_rtv_fill - Fill in RTV (read timeout value) request frame.
	264	*/
	265	static inline void fc_rtv_fill(struct fc_lport lport, struct fc_frame fp)
	266	{
	267	struct fc_els_rtv *rtv;
	268
	269	rtv = fc_frame_payload_get(fp, sizeof(*rtv));
	270	memset(rtv, 0, sizeof(*rtv));
	271	rtv->rtv_cmd = ELS_RTV;
	272	}
	273
	274	/**
	275	* fc_rec_fill - Fill in rec request frame
	276	*/
	277	static inline void fc_rec_fill(struct fc_lport lport, struct fc_frame fp)
	278	{
	279	struct fc_els_rec *rec;
	280	struct fc_exch *ep = fc_seq_exch(fr_seq(fp));
	281
	282	rec = fc_frame_payload_get(fp, sizeof(*rec));
	283	memset(rec, 0, sizeof(*rec));
	284	rec->rec_cmd = ELS_REC;
	285	hton24(rec->rec_s_id, fc_host_port_id(lport->host));
	286	rec->rec_ox_id = htons(ep->oxid);
	287	rec->rec_rx_id = htons(ep->rxid);
	288	}
	289
	290	/**
	291	* fc_prli_fill - Fill in prli request frame
	292	*/
	293	static inline void fc_prli_fill(struct fc_lport lport, struct fc_frame fp)
	294	{
	295	struct {
	296	struct fc_els_prli prli;
	297	struct fc_els_spp spp;
	298	} *pp;
	299
	300	pp = fc_frame_payload_get(fp, sizeof(*pp));
	301	memset(pp, 0, sizeof(*pp));
	302	pp->prli.prli_cmd = ELS_PRLI;
	303	pp->prli.prli_spp_len = sizeof(struct fc_els_spp);
	304	pp->prli.prli_len = htons(sizeof(*pp));
	305	pp->spp.spp_type = FC_TYPE_FCP;
	306	pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR;
	307	pp->spp.spp_params = htonl(lport->service_params);
	308	}
	309
310	/**
311	* fc_scr_fill - Fill in a scr request frame.
312	*/
313	static inline void fc_scr_fill(struct fc_lport lport, struct fc_frame fp)
314	{
315	struct fc_els_scr *scr;
316
317	scr = fc_frame_payload_get(fp, sizeof(*scr));
318	memset(scr, 0, sizeof(*scr));
319	scr->scr_cmd = ELS_SCR;
320	scr->scr_reg_func = ELS_SCRF_FULL;
321	}
322
323	/**
324	* fc_els_fill - Fill in an ELS request frame
325	*/
9fb9d328	326	static inline int fc_els_fill(struct fc_lport *lport,
a46f327a	327	u32 did,
42e9a92f	328	struct fc_frame *fp, unsigned int op,
a46f327a	329	enum fc_rctl r_ctl, enum fc_fh_type fh_type)
42e9a92f RL	330	{
42e9a92f RL	331	switch (op) {
370c3bd0 JE	332	case ELS_ADISC:
	333	fc_adisc_fill(lport, fp);
	334	break;
	335
42e9a92f RL	336	case ELS_PLOGI:
42e9a92f RL	337	fc_plogi_fill(lport, fp, ELS_PLOGI);
42e9a92f RL	338	break;
	339
	340	case ELS_FLOGI:
	341	fc_flogi_fill(lport, fp);
42e9a92f RL	342	break;
42e9a92f RL	343
db36c06c CL	344	case ELS_FDISC:
	345	fc_fdisc_fill(lport, fp);
	346	break;
	347
42e9a92f RL	348	case ELS_LOGO:
42e9a92f RL	349	fc_logo_fill(lport, fp);
42e9a92f RL	350	break;
	351
	352	case ELS_RTV:
	353	fc_rtv_fill(lport, fp);
42e9a92f RL	354	break;
	355
	356	case ELS_REC:
	357	fc_rec_fill(lport, fp);
42e9a92f RL	358	break;
	359
	360	case ELS_PRLI:
	361	fc_prli_fill(lport, fp);
42e9a92f RL	362	break;
	363
	364	case ELS_SCR:
	365	fc_scr_fill(lport, fp);
42e9a92f RL	366	break;
	367
	368	default:
42e9a92f RL	369	return -EINVAL;
	370	}
	371
	372	*r_ctl = FC_RCTL_ELS_REQ;
	373	*fh_type = FC_TYPE_ELS;
	374	return 0;
	375	}
	376	#endif /* _FC_ENCODE_H_ */