Edit File: 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> #include <linux/utsname.h> /* * F_CTL values for simple requests and responses. */ #define FC_FCTL_REQ (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT) #define FC_FCTL_RESP (FC_FC_EX_CTX | FC_FC_LAST_SEQ | \ FC_FC_END_SEQ | FC_FC_SEQ_INIT) 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_rff_id rff; struct fc_ns_fid fid; struct fc_ns_rsnn snn; struct fc_ns_rspn spn; struct fc_fdmi_rhba rhba; struct fc_fdmi_rpa rpa; struct fc_fdmi_dprt dprt; struct fc_fdmi_dhba dhba; } payload; }; static inline void __fc_fill_fc_hdr(struct fc_frame_header *fh, enum fc_rctl r_ctl, u32 did, u32 sid, enum fc_fh_type type, u32 f_ctl, u32 parm_offset) { 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); } /** * 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); __fc_fill_fc_hdr(fh, r_ctl, did, sid, type, f_ctl, 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, lport->port_id); } /** * 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, enum fc_ct_fs_type fs_type, u8 subtype) { 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 = fs_type; ct->hdr.ct_fs_subtype = subtype; ct->hdr.ct_cmd = htons((u16) op); return ct; } /** * fc_ct_ns_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_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) { struct fc_ct_req *ct; size_t len; switch (op) { case FC_NS_GPN_FT: ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_gid_ft), FC_FST_DIR, FC_NS_SUBTYPE); 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), FC_FST_DIR, FC_NS_SUBTYPE); ct->payload.gid.fn_fc4_type = FC_TYPE_FCP; 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), FC_FST_DIR, FC_NS_SUBTYPE); hton24(ct->payload.rft.fid.fp_fid, lport->port_id); ct->payload.rft.fts = lport->fcts; break; case FC_NS_RFF_ID: ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rff_id), FC_FST_DIR, FC_NS_SUBTYPE); hton24(ct->payload.rff.fr_fid.fp_fid, lport->port_id); ct->payload.rff.fr_type = FC_TYPE_FCP; if (lport->service_params & FCP_SPPF_INIT_FCN) ct->payload.rff.fr_feat = FCP_FEAT_INIT; if (lport->service_params & FCP_SPPF_TARG_FCN) ct->payload.rff.fr_feat |= FCP_FEAT_TARG; break; case FC_NS_RNN_ID: ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rn_id), FC_FST_DIR, FC_NS_SUBTYPE); hton24(ct->payload.rn.fr_fid.fp_fid, lport->port_id); put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn); break; case FC_NS_RSPN_ID: len = strnlen(fc_host_symbolic_name(lport->host), 255); ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rspn) + len, FC_FST_DIR, FC_NS_SUBTYPE); hton24(ct->payload.spn.fr_fid.fp_fid, lport->port_id); strncpy(ct->payload.spn.fr_name, fc_host_symbolic_name(lport->host), len); ct->payload.spn.fr_name_len = len; break; case FC_NS_RSNN_NN: len = strnlen(fc_host_symbolic_name(lport->host), 255); ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rsnn) + len, FC_FST_DIR, FC_NS_SUBTYPE); put_unaligned_be64(lport->wwnn, &ct->payload.snn.fr_wwn); strncpy(ct->payload.snn.fr_name, fc_host_symbolic_name(lport->host), len); ct->payload.snn.fr_name_len = len; break; default: return -EINVAL; } *r_ctl = FC_RCTL_DD_UNSOL_CTL; *fh_type = FC_TYPE_CT; return 0; } /** * fc_ct_ms_fill() - Fill in a mgmt 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_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) { struct fc_ct_req *ct; size_t len; struct fc_fdmi_attr_entry *entry; struct fs_fdmi_attrs *hba_attrs; int numattrs = 0; switch (op) { case FC_FDMI_RHBA: numattrs = 10; len = sizeof(struct fc_fdmi_rhba); len -= sizeof(struct fc_fdmi_attr_entry); len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN); len += FC_FDMI_HBA_ATTR_NODENAME_LEN; len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN; len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN; len += FC_FDMI_HBA_ATTR_MODEL_LEN; len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN; len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN; len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN; len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN; len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN; len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN; ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT, FC_FDMI_SUBTYPE); /* HBA Identifier */ put_unaligned_be64(lport->wwpn, &ct->payload.rhba.hbaid.id); /* Number of Ports - always 1 */ put_unaligned_be32(1, &ct->payload.rhba.port.numport); /* Port Name */ put_unaligned_be64(lport->wwpn, &ct->payload.rhba.port.port[0].portname); /* HBA Attributes */ put_unaligned_be32(numattrs, &ct->payload.rhba.hba_attrs.numattrs); hba_attrs = &ct->payload.rhba.hba_attrs; entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr; /* NodeName*/ len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_NODENAME_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_NODENAME, &entry->type); put_unaligned_be16(len, &entry->len); put_unaligned_be64(lport->wwnn, (__be64 *)&entry->value[0]); /* Manufacturer */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_NODENAME_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_MANUFACTURER, &entry->type); put_unaligned_be16(len, &entry->len); strncpy((char *)&entry->value, fc_host_manufacturer(lport->host), FC_FDMI_HBA_ATTR_MANUFACTURER_LEN); /* SerialNumber */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_MANUFACTURER_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_SERIALNUMBER, &entry->type); put_unaligned_be16(len, &entry->len); strncpy((char *)&entry->value, fc_host_serial_number(lport->host), FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN); /* Model */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_MODEL_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_MODEL, &entry->type); put_unaligned_be16(len, &entry->len); strncpy((char *)&entry->value, fc_host_model(lport->host), FC_FDMI_HBA_ATTR_MODEL_LEN); /* Model Description */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_MODEL_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_MODELDESCRIPTION, &entry->type); put_unaligned_be16(len, &entry->len); strncpy((char *)&entry->value, fc_host_model_description(lport->host), FC_FDMI_HBA_ATTR_MODELDESCR_LEN); /* Hardware Version */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_MODELDESCR_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_HARDWAREVERSION, &entry->type); put_unaligned_be16(len, &entry->len); strncpy((char *)&entry->value, fc_host_hardware_version(lport->host), FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN); /* Driver Version */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_DRIVERVERSION, &entry->type); put_unaligned_be16(len, &entry->len); strncpy((char *)&entry->value, fc_host_driver_version(lport->host), FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN); /* OptionROM Version */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_OPTIONROMVERSION, &entry->type); put_unaligned_be16(len, &entry->len); strncpy((char *)&entry->value, fc_host_optionrom_version(lport->host), FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN); /* Firmware Version */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_FIRMWAREVERSION, &entry->type); put_unaligned_be16(len, &entry->len); strncpy((char *)&entry->value, fc_host_firmware_version(lport->host), FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN); /* OS Name and Version */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN; put_unaligned_be16(FC_FDMI_HBA_ATTR_OSNAMEVERSION, &entry->type); put_unaligned_be16(len, &entry->len); snprintf((char *)&entry->value, FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN, "%s v%s", init_utsname()->sysname, init_utsname()->release); break; case FC_FDMI_RPA: numattrs = 6; len = sizeof(struct fc_fdmi_rpa); len -= sizeof(struct fc_fdmi_attr_entry); len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN); len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN; len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN; len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN; len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN; len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN; len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN; ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT, FC_FDMI_SUBTYPE); /* Port Name */ put_unaligned_be64(lport->wwpn, &ct->payload.rpa.port.portname); /* Port Attributes */ put_unaligned_be32(numattrs, &ct->payload.rpa.hba_attrs.numattrs); hba_attrs = &ct->payload.rpa.hba_attrs; entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr; /* FC4 types */ len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN; put_unaligned_be16(FC_FDMI_PORT_ATTR_FC4TYPES, &entry->type); put_unaligned_be16(len, &entry->len); memcpy(&entry->value, fc_host_supported_fc4s(lport->host), FC_FDMI_PORT_ATTR_FC4TYPES_LEN); /* Supported Speed */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_PORT_ATTR_FC4TYPES_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN; put_unaligned_be16(FC_FDMI_PORT_ATTR_SUPPORTEDSPEED, &entry->type); put_unaligned_be16(len, &entry->len); put_unaligned_be32(fc_host_supported_speeds(lport->host), &entry->value); /* Current Port Speed */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN; put_unaligned_be16(FC_FDMI_PORT_ATTR_CURRENTPORTSPEED, &entry->type); put_unaligned_be16(len, &entry->len); put_unaligned_be32(lport->link_speed, &entry->value); /* Max Frame Size */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN; put_unaligned_be16(FC_FDMI_PORT_ATTR_MAXFRAMESIZE, &entry->type); put_unaligned_be16(len, &entry->len); put_unaligned_be32(fc_host_maxframe_size(lport->host), &entry->value); /* OS Device Name */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN; put_unaligned_be16(FC_FDMI_PORT_ATTR_OSDEVICENAME, &entry->type); put_unaligned_be16(len, &entry->len); /* Use the sysfs device name */ strncpy((char *)&entry->value, dev_name(&lport->host->shost_gendev), strnlen(dev_name(&lport->host->shost_gendev), FC_FDMI_PORT_ATTR_HOSTNAME_LEN)); /* Host Name */ entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN); len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN; put_unaligned_be16(FC_FDMI_PORT_ATTR_HOSTNAME, &entry->type); put_unaligned_be16(len, &entry->len); if (strlen(fc_host_system_hostname(lport->host))) strncpy((char *)&entry->value, fc_host_system_hostname(lport->host), strnlen(fc_host_system_hostname(lport->host), FC_FDMI_PORT_ATTR_HOSTNAME_LEN)); else strncpy((char *)&entry->value, init_utsname()->nodename, FC_FDMI_PORT_ATTR_HOSTNAME_LEN); break; case FC_FDMI_DPRT: len = sizeof(struct fc_fdmi_dprt); ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT, FC_FDMI_SUBTYPE); /* Port Name */ put_unaligned_be64(lport->wwpn, &ct->payload.dprt.port.portname); break; case FC_FDMI_DHBA: len = sizeof(struct fc_fdmi_dhba); ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT, FC_FDMI_SUBTYPE); /* HBA Identifier */ put_unaligned_be64(lport->wwpn, &ct->payload.dhba.hbaid.id); break; default: return -EINVAL; } *r_ctl = FC_RCTL_DD_UNSOL_CTL; *fh_type = FC_TYPE_CT; return 0; } /** * fc_ct_fill() - Fill in a common transport 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, u32 *did) { int rc = -EINVAL; switch (fc_id) { case FC_FID_MGMT_SERV: rc = fc_ct_ms_fill(lport, fc_id, fp, op, r_ctl, fh_type); *did = FC_FID_MGMT_SERV; break; case FC_FID_DIR_SERV: default: rc = fc_ct_ns_fill(lport, fc_id, fp, op, r_ctl, fh_type); *did = FC_FID_DIR_SERV; break; } return rc; } /** * 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, lport->port_id); 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, lport->port_id); 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_ */