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alistair23-linux/include/scsi/fc_encode.h
Thomas Gleixner a61127c213 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 111 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:06 +02:00

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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright(c) 2008 Intel Corporation. All rights reserved.
*
* 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_ */
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