1 files changed, 1410 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_fcbuild.c b/drivers/scsi/bfa/bfa_fcbuild.c
new file mode 100644
index 000000000000..b7d2657ca82a
--- /dev/null
+++ b/drivers/scsi/bfa/bfa_fcbuild.c
@@ -0,0 +1,1410 @@
+/*
+ * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ *
+ * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (GPL) Version 2 as
+ * published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that 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.
+ */
+/*
+ * fcbuild.c - FC link service frame building and parsing routines
+ */
+
+#include "bfa_os_inc.h"
+#include "bfa_fcbuild.h"
+
+/*
+ * static build functions
+ */
+static void     fc_els_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
+                                 u16 ox_id);
+static void     fc_bls_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
+                                 u16 ox_id);
+static struct fchs_s fc_els_req_tmpl;
+static struct fchs_s fc_els_rsp_tmpl;
+static struct fchs_s fc_bls_req_tmpl;
+static struct fchs_s fc_bls_rsp_tmpl;
+static struct fc_ba_acc_s ba_acc_tmpl;
+static struct fc_logi_s plogi_tmpl;
+static struct fc_prli_s prli_tmpl;
+static struct fc_rrq_s rrq_tmpl;
+static struct fchs_s fcp_fchs_tmpl;
+
+void
+fcbuild_init(void)
+{
+        /*
+         * fc_els_req_tmpl
+         */
+        fc_els_req_tmpl.routing = FC_RTG_EXT_LINK;
+        fc_els_req_tmpl.cat_info = FC_CAT_LD_REQUEST;
+        fc_els_req_tmpl.type = FC_TYPE_ELS;
+        fc_els_req_tmpl.f_ctl =
+                bfa_os_hton3b(FCTL_SEQ_INI | FCTL_FS_EXCH | FCTL_END_SEQ |
+                              FCTL_SI_XFER);
+        fc_els_req_tmpl.rx_id = FC_RXID_ANY;
+
+        /*
+         * fc_els_rsp_tmpl
+         */
+        fc_els_rsp_tmpl.routing = FC_RTG_EXT_LINK;
+        fc_els_rsp_tmpl.cat_info = FC_CAT_LD_REPLY;
+        fc_els_rsp_tmpl.type = FC_TYPE_ELS;
+        fc_els_rsp_tmpl.f_ctl =
+                bfa_os_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
+                              FCTL_END_SEQ | FCTL_SI_XFER);
+        fc_els_rsp_tmpl.rx_id = FC_RXID_ANY;
+
+        /*
+         * fc_bls_req_tmpl
+         */
+        fc_bls_req_tmpl.routing = FC_RTG_BASIC_LINK;
+        fc_bls_req_tmpl.type = FC_TYPE_BLS;
+        fc_bls_req_tmpl.f_ctl = bfa_os_hton3b(FCTL_END_SEQ | FCTL_SI_XFER);
+        fc_bls_req_tmpl.rx_id = FC_RXID_ANY;
+
+        /*
+         * fc_bls_rsp_tmpl
+         */
+        fc_bls_rsp_tmpl.routing = FC_RTG_BASIC_LINK;
+        fc_bls_rsp_tmpl.cat_info = FC_CAT_BA_ACC;
+        fc_bls_rsp_tmpl.type = FC_TYPE_BLS;
+        fc_bls_rsp_tmpl.f_ctl =
+                bfa_os_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
+                              FCTL_END_SEQ | FCTL_SI_XFER);
+        fc_bls_rsp_tmpl.rx_id = FC_RXID_ANY;
+
+        /*
+         * ba_acc_tmpl
+         */
+        ba_acc_tmpl.seq_id_valid = 0;
+        ba_acc_tmpl.low_seq_cnt = 0;
+        ba_acc_tmpl.high_seq_cnt = 0xFFFF;
+
+        /*
+         * plogi_tmpl
+         */
+        plogi_tmpl.csp.verhi = FC_PH_VER_PH_3;
+        plogi_tmpl.csp.verlo = FC_PH_VER_4_3;
+        plogi_tmpl.csp.bbcred = bfa_os_htons(0x0004);
+        plogi_tmpl.csp.ciro = 0x1;
+        plogi_tmpl.csp.cisc = 0x0;
+        plogi_tmpl.csp.altbbcred = 0x0;
+        plogi_tmpl.csp.conseq = bfa_os_htons(0x00FF);
+        plogi_tmpl.csp.ro_bitmap = bfa_os_htons(0x0002);
+        plogi_tmpl.csp.e_d_tov = bfa_os_htonl(2000);
+
+        plogi_tmpl.class3.class_valid = 1;
+        plogi_tmpl.class3.sequential = 1;
+        plogi_tmpl.class3.conseq = 0xFF;
+        plogi_tmpl.class3.ospx = 1;
+
+        /*
+         * prli_tmpl
+         */
+        prli_tmpl.command = FC_ELS_PRLI;
+        prli_tmpl.pglen = 0x10;
+        prli_tmpl.pagebytes = bfa_os_htons(0x0014);
+        prli_tmpl.parampage.type = FC_TYPE_FCP;
+        prli_tmpl.parampage.imagepair = 1;
+        prli_tmpl.parampage.servparams.rxrdisab = 1;
+
+        /*
+         * rrq_tmpl
+         */
+        rrq_tmpl.els_cmd.els_code = FC_ELS_RRQ;
+
+        /*
+         * fcp_struct fchs_s mpl
+         */
+        fcp_fchs_tmpl.routing = FC_RTG_FC4_DEV_DATA;
+        fcp_fchs_tmpl.cat_info = FC_CAT_UNSOLICIT_CMD;
+        fcp_fchs_tmpl.type = FC_TYPE_FCP;
+        fcp_fchs_tmpl.f_ctl =
+                bfa_os_hton3b(FCTL_FS_EXCH | FCTL_END_SEQ | FCTL_SI_XFER);
+        fcp_fchs_tmpl.seq_id = 1;
+        fcp_fchs_tmpl.rx_id = FC_RXID_ANY;
+}
+
+static void
+fc_gs_fchdr_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u32 ox_id)
+{
+        bfa_os_memset(fchs, 0, sizeof(struct fchs_s));
+
+        fchs->routing = FC_RTG_FC4_DEV_DATA;
+        fchs->cat_info = FC_CAT_UNSOLICIT_CTRL;
+        fchs->type = FC_TYPE_SERVICES;
+        fchs->f_ctl =
+                bfa_os_hton3b(FCTL_SEQ_INI | FCTL_FS_EXCH | FCTL_END_SEQ |
+                              FCTL_SI_XFER);
+        fchs->rx_id = FC_RXID_ANY;
+        fchs->d_id = (d_id);
+        fchs->s_id = (s_id);
+        fchs->ox_id = bfa_os_htons(ox_id);
+
+        /**
+         * @todo no need to set ox_id for request
+         *       no need to set rx_id for response
+         */
+}
+
+void
+fc_els_req_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
+{
+        bfa_os_memcpy(fchs, &fc_els_req_tmpl, sizeof(struct fchs_s));
+        fchs->d_id = (d_id);
+        fchs->s_id = (s_id);
+        fchs->ox_id = bfa_os_htons(ox_id);
+}
+
+static void
+fc_els_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
+{
+        bfa_os_memcpy(fchs, &fc_els_rsp_tmpl, sizeof(struct fchs_s));
+        fchs->d_id = d_id;
+        fchs->s_id = s_id;
+        fchs->ox_id = ox_id;
+}
+
+enum fc_parse_status
+fc_els_rsp_parse(struct fchs_s *fchs, int len)
+{
+        struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
+        struct fc_ls_rjt_s *ls_rjt = (struct fc_ls_rjt_s *) els_cmd;
+
+        len = len;
+
+        switch (els_cmd->els_code) {
+        case FC_ELS_LS_RJT:
+                if (ls_rjt->reason_code == FC_LS_RJT_RSN_LOGICAL_BUSY)
+                        return FC_PARSE_BUSY;
+                else
+                        return FC_PARSE_FAILURE;
+
+        case FC_ELS_ACC:
+                return FC_PARSE_OK;
+        }
+        return FC_PARSE_OK;
+}
+
+static void
+fc_bls_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
+{
+        bfa_os_memcpy(fchs, &fc_bls_rsp_tmpl, sizeof(struct fchs_s));
+        fchs->d_id = d_id;
+        fchs->s_id = s_id;
+        fchs->ox_id = ox_id;
+}
+
+static          u16
+fc_plogi_x_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
+                 u16 ox_id, wwn_t port_name, wwn_t node_name,
+                 u16 pdu_size, u8 els_code)
+{
+        struct fc_logi_s *plogi = (struct fc_logi_s *) (pld);
+
+        bfa_os_memcpy(plogi, &plogi_tmpl, sizeof(struct fc_logi_s));
+
+        plogi->els_cmd.els_code = els_code;
+        if (els_code == FC_ELS_PLOGI)
+                fc_els_req_build(fchs, d_id, s_id, ox_id);
+        else
+                fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+
+        plogi->csp.rxsz = plogi->class3.rxsz = bfa_os_htons(pdu_size);
+
+        bfa_os_memcpy(&plogi->port_name, &port_name, sizeof(wwn_t));
+        bfa_os_memcpy(&plogi->node_name, &node_name, sizeof(wwn_t));
+
+        return sizeof(struct fc_logi_s);
+}
+
+u16
+fc_flogi_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
+                u16 ox_id, wwn_t port_name, wwn_t node_name, u16 pdu_size,
+               u8 set_npiv, u8 set_auth, u16 local_bb_credits)
+{
+        u32        d_id = bfa_os_hton3b(FC_FABRIC_PORT);
+        u32     *vvl_info;
+
+        bfa_os_memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));
+
+        flogi->els_cmd.els_code = FC_ELS_FLOGI;
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+
+        flogi->csp.rxsz = flogi->class3.rxsz = bfa_os_htons(pdu_size);
+        flogi->port_name = port_name;
+        flogi->node_name = node_name;
+
+        /*
+         * Set the NPIV Capability Bit ( word 1, bit 31) of Common
+         * Service Parameters.
+         */
+        flogi->csp.ciro = set_npiv;
+
+        /* set AUTH capability */
+        flogi->csp.security = set_auth;
+
+        flogi->csp.bbcred = bfa_os_htons(local_bb_credits);
+
+        /* Set brcd token in VVL */
+        vvl_info = (u32 *)&flogi->vvl[0];
+
+        /* set the flag to indicate the presence of VVL */
+        flogi->csp.npiv_supp    = 1; /* @todo. field name is not correct */
+        vvl_info[0]     = bfa_os_htonl(FLOGI_VVL_BRCD);
+
+        return sizeof(struct fc_logi_s);
+}
+
+u16
+fc_flogi_acc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
+                   u16 ox_id, wwn_t port_name, wwn_t node_name,
+                   u16 pdu_size, u16 local_bb_credits)
+{
+        u32        d_id = 0;
+
+        bfa_os_memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+
+        flogi->els_cmd.els_code = FC_ELS_ACC;
+        flogi->csp.rxsz = flogi->class3.rxsz = bfa_os_htons(pdu_size);
+        flogi->port_name = port_name;
+        flogi->node_name = node_name;
+
+        flogi->csp.bbcred = bfa_os_htons(local_bb_credits);
+
+        return sizeof(struct fc_logi_s);
+}
+
+u16
+fc_fdisc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
+                u16 ox_id, wwn_t port_name, wwn_t node_name, u16 pdu_size)
+{
+        u32        d_id = bfa_os_hton3b(FC_FABRIC_PORT);
+
+        bfa_os_memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));
+
+        flogi->els_cmd.els_code = FC_ELS_FDISC;
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+
+        flogi->csp.rxsz = flogi->class3.rxsz = bfa_os_htons(pdu_size);
+        flogi->port_name = port_name;
+        flogi->node_name = node_name;
+
+        return sizeof(struct fc_logi_s);
+}
+
+u16
+fc_plogi_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
+               u16 ox_id, wwn_t port_name, wwn_t node_name,
+               u16 pdu_size)
+{
+        return fc_plogi_x_build(fchs, pld, d_id, s_id, ox_id, port_name,
+                                node_name, pdu_size, FC_ELS_PLOGI);
+}
+
+u16
+fc_plogi_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
+                   u16 ox_id, wwn_t port_name, wwn_t node_name,
+                   u16 pdu_size)
+{
+        return fc_plogi_x_build(fchs, pld, d_id, s_id, ox_id, port_name,
+                                node_name, pdu_size, FC_ELS_ACC);
+}
+
+enum fc_parse_status
+fc_plogi_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name)
+{
+        struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
+        struct fc_logi_s *plogi;
+        struct fc_ls_rjt_s *ls_rjt;
+
+        switch (els_cmd->els_code) {
+        case FC_ELS_LS_RJT:
+                ls_rjt = (struct fc_ls_rjt_s *) (fchs + 1);
+                if (ls_rjt->reason_code == FC_LS_RJT_RSN_LOGICAL_BUSY)
+                        return FC_PARSE_BUSY;
+                else
+                        return FC_PARSE_FAILURE;
+        case FC_ELS_ACC:
+                plogi = (struct fc_logi_s *) (fchs + 1);
+                if (len < sizeof(struct fc_logi_s))
+                        return FC_PARSE_FAILURE;
+
+                if (!wwn_is_equal(plogi->port_name, port_name))
+                        return FC_PARSE_FAILURE;
+
+                if (!plogi->class3.class_valid)
+                        return FC_PARSE_FAILURE;
+
+                if (bfa_os_ntohs(plogi->class3.rxsz) < (FC_MIN_PDUSZ))
+                        return FC_PARSE_FAILURE;
+
+                return FC_PARSE_OK;
+        default:
+                return FC_PARSE_FAILURE;
+        }
+}
+
+enum fc_parse_status
+fc_plogi_parse(struct fchs_s *fchs)
+{
+        struct fc_logi_s *plogi = (struct fc_logi_s *) (fchs + 1);
+
+        if (plogi->class3.class_valid != 1)
+                return FC_PARSE_FAILURE;
+
+        if ((bfa_os_ntohs(plogi->class3.rxsz) < FC_MIN_PDUSZ)
+            || (bfa_os_ntohs(plogi->class3.rxsz) > FC_MAX_PDUSZ)
+            || (plogi->class3.rxsz == 0))
+                return FC_PARSE_FAILURE;
+
+        return FC_PARSE_OK;
+}
+
+u16
+fc_prli_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
+              u16 ox_id)
+{
+        struct fc_prli_s *prli = (struct fc_prli_s *) (pld);
+
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+        bfa_os_memcpy(prli, &prli_tmpl, sizeof(struct fc_prli_s));
+
+        prli->command = FC_ELS_PRLI;
+        prli->parampage.servparams.initiator     = 1;
+        prli->parampage.servparams.retry         = 1;
+        prli->parampage.servparams.rec_support   = 1;
+        prli->parampage.servparams.task_retry_id = 0;
+        prli->parampage.servparams.confirm       = 1;
+
+        return sizeof(struct fc_prli_s);
+}
+
+u16
+fc_prli_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
+                  u16 ox_id, enum bfa_lport_role role)
+{
+        struct fc_prli_s *prli = (struct fc_prli_s *) (pld);
+
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+        bfa_os_memcpy(prli, &prli_tmpl, sizeof(struct fc_prli_s));
+
+        prli->command = FC_ELS_ACC;
+
+        prli->parampage.servparams.initiator = 1;
+
+        prli->parampage.rspcode = FC_PRLI_ACC_XQTD;
+
+        return sizeof(struct fc_prli_s);
+}
+
+enum fc_parse_status
+fc_prli_rsp_parse(struct fc_prli_s *prli, int len)
+{
+        if (len < sizeof(struct fc_prli_s))
+                return FC_PARSE_FAILURE;
+
+        if (prli->command != FC_ELS_ACC)
+                return FC_PARSE_FAILURE;
+
+        if ((prli->parampage.rspcode != FC_PRLI_ACC_XQTD)
+            && (prli->parampage.rspcode != FC_PRLI_ACC_PREDEF_IMG))
+                return FC_PARSE_FAILURE;
+
+        if (prli->parampage.servparams.target != 1)
+                return FC_PARSE_FAILURE;
+
+        return FC_PARSE_OK;
+}
+
+enum fc_parse_status
+fc_prli_parse(struct fc_prli_s *prli)
+{
+        if (prli->parampage.type != FC_TYPE_FCP)
+                return FC_PARSE_FAILURE;
+
+        if (!prli->parampage.imagepair)
+                return FC_PARSE_FAILURE;
+
+        if (!prli->parampage.servparams.initiator)
+                return FC_PARSE_FAILURE;
+
+        return FC_PARSE_OK;
+}
+
+u16
+fc_logo_build(struct fchs_s *fchs, struct fc_logo_s *logo, u32 d_id, u32 s_id,
+              u16 ox_id, wwn_t port_name)
+{
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+
+        bfa_os_memset(logo, '\0', sizeof(struct fc_logo_s));
+        logo->els_cmd.els_code = FC_ELS_LOGO;
+        logo->nport_id = (s_id);
+        logo->orig_port_name = port_name;
+
+        return sizeof(struct fc_logo_s);
+}
+
+static          u16
+fc_adisc_x_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
+                 u32 s_id, u16 ox_id, wwn_t port_name,
+                 wwn_t node_name, u8 els_code)
+{
+        bfa_os_memset(adisc, '\0', sizeof(struct fc_adisc_s));
+
+        adisc->els_cmd.els_code = els_code;
+
+        if (els_code == FC_ELS_ADISC)
+                fc_els_req_build(fchs, d_id, s_id, ox_id);
+        else
+                fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+
+        adisc->orig_HA = 0;
+        adisc->orig_port_name = port_name;
+        adisc->orig_node_name = node_name;
+        adisc->nport_id = (s_id);
+
+        return sizeof(struct fc_adisc_s);
+}
+
+u16
+fc_adisc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
+                u32 s_id, u16 ox_id, wwn_t port_name, wwn_t node_name)
+{
+        return fc_adisc_x_build(fchs, adisc, d_id, s_id, ox_id, port_name,
+                                node_name, FC_ELS_ADISC);
+}
+
+u16
+fc_adisc_acc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
+                   u32 s_id, u16 ox_id, wwn_t port_name,
+                   wwn_t node_name)
+{
+        return fc_adisc_x_build(fchs, adisc, d_id, s_id, ox_id, port_name,
+                                node_name, FC_ELS_ACC);
+}
+
+enum fc_parse_status
+fc_adisc_rsp_parse(struct fc_adisc_s *adisc, int len, wwn_t port_name,
+                                 wwn_t node_name)
+{
+
+        if (len < sizeof(struct fc_adisc_s))
+                return FC_PARSE_FAILURE;
+
+        if (adisc->els_cmd.els_code != FC_ELS_ACC)
+                return FC_PARSE_FAILURE;
+
+        if (!wwn_is_equal(adisc->orig_port_name, port_name))
+                return FC_PARSE_FAILURE;
+
+        return FC_PARSE_OK;
+}
+
+enum fc_parse_status
+fc_adisc_parse(struct fchs_s *fchs, void *pld, u32 host_dap, wwn_t node_name,
+               wwn_t port_name)
+{
+        struct fc_adisc_s *adisc = (struct fc_adisc_s *) pld;
+
+        if (adisc->els_cmd.els_code != FC_ELS_ACC)
+                return FC_PARSE_FAILURE;
+
+        if ((adisc->nport_id == (host_dap))
+            && wwn_is_equal(adisc->orig_port_name, port_name)
+            && wwn_is_equal(adisc->orig_node_name, node_name))
+                return FC_PARSE_OK;
+
+        return FC_PARSE_FAILURE;
+}
+
+enum fc_parse_status
+fc_pdisc_parse(struct fchs_s *fchs, wwn_t node_name, wwn_t port_name)
+{
+        struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);
+
+        if (pdisc->class3.class_valid != 1)
+                return FC_PARSE_FAILURE;
+
+        if ((bfa_os_ntohs(pdisc->class3.rxsz) <
+                (FC_MIN_PDUSZ - sizeof(struct fchs_s)))
+            || (pdisc->class3.rxsz == 0))
+                return FC_PARSE_FAILURE;
+
+        if (!wwn_is_equal(pdisc->port_name, port_name))
+                return FC_PARSE_FAILURE;
+
+        if (!wwn_is_equal(pdisc->node_name, node_name))
+                return FC_PARSE_FAILURE;
+
+        return FC_PARSE_OK;
+}
+
+u16
+fc_abts_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
+{
+        bfa_os_memcpy(fchs, &fc_bls_req_tmpl, sizeof(struct fchs_s));
+        fchs->cat_info = FC_CAT_ABTS;
+        fchs->d_id = (d_id);
+        fchs->s_id = (s_id);
+        fchs->ox_id = bfa_os_htons(ox_id);
+
+        return sizeof(struct fchs_s);
+}
+
+enum fc_parse_status
+fc_abts_rsp_parse(struct fchs_s *fchs, int len)
+{
+        if ((fchs->cat_info == FC_CAT_BA_ACC)
+            || (fchs->cat_info == FC_CAT_BA_RJT))
+                return FC_PARSE_OK;
+
+        return FC_PARSE_FAILURE;
+}
+
+u16
+fc_rrq_build(struct fchs_s *fchs, struct fc_rrq_s *rrq, u32 d_id, u32 s_id,
+             u16 ox_id, u16 rrq_oxid)
+{
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+
+        /*
+         * build rrq payload
+         */
+        bfa_os_memcpy(rrq, &rrq_tmpl, sizeof(struct fc_rrq_s));
+        rrq->s_id = (s_id);
+        rrq->ox_id = bfa_os_htons(rrq_oxid);
+        rrq->rx_id = FC_RXID_ANY;
+
+        return sizeof(struct fc_rrq_s);
+}
+
+u16
+fc_logo_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
+                  u16 ox_id)
+{
+        struct fc_els_cmd_s *acc = pld;
+
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+
+        bfa_os_memset(acc, 0, sizeof(struct fc_els_cmd_s));
+        acc->els_code = FC_ELS_ACC;
+
+        return sizeof(struct fc_els_cmd_s);
+}
+
+u16
+fc_ls_rjt_build(struct fchs_s *fchs, struct fc_ls_rjt_s *ls_rjt, u32 d_id,
+                u32 s_id, u16 ox_id, u8 reason_code,
+                u8 reason_code_expl)
+{
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+        bfa_os_memset(ls_rjt, 0, sizeof(struct fc_ls_rjt_s));
+
+        ls_rjt->els_cmd.els_code = FC_ELS_LS_RJT;
+        ls_rjt->reason_code = reason_code;
+        ls_rjt->reason_code_expl = reason_code_expl;
+        ls_rjt->vendor_unique = 0x00;
+
+        return sizeof(struct fc_ls_rjt_s);
+}
+
+u16
+fc_ba_acc_build(struct fchs_s *fchs, struct fc_ba_acc_s *ba_acc, u32 d_id,
+                u32 s_id, u16 ox_id, u16 rx_id)
+{
+        fc_bls_rsp_build(fchs, d_id, s_id, ox_id);
+
+        bfa_os_memcpy(ba_acc, &ba_acc_tmpl, sizeof(struct fc_ba_acc_s));
+
+        fchs->rx_id = rx_id;
+
+        ba_acc->ox_id = fchs->ox_id;
+        ba_acc->rx_id = fchs->rx_id;
+
+        return sizeof(struct fc_ba_acc_s);
+}
+
+u16
+fc_ls_acc_build(struct fchs_s *fchs, struct fc_els_cmd_s *els_cmd, u32 d_id,
+                u32 s_id, u16 ox_id)
+{
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+        bfa_os_memset(els_cmd, 0, sizeof(struct fc_els_cmd_s));
+        els_cmd->els_code = FC_ELS_ACC;
+
+        return sizeof(struct fc_els_cmd_s);
+}
+
+int
+fc_logout_params_pages(struct fchs_s *fc_frame, u8 els_code)
+{
+        int             num_pages = 0;
+        struct fc_prlo_s *prlo;
+        struct fc_tprlo_s *tprlo;
+
+        if (els_code == FC_ELS_PRLO) {
+                prlo = (struct fc_prlo_s *) (fc_frame + 1);
+                num_pages = (bfa_os_ntohs(prlo->payload_len) - 4) / 16;
+        } else {
+                tprlo = (struct fc_tprlo_s *) (fc_frame + 1);
+                num_pages = (bfa_os_ntohs(tprlo->payload_len) - 4) / 16;
+        }
+        return num_pages;
+}
+
+u16
+fc_tprlo_acc_build(struct fchs_s *fchs, struct fc_tprlo_acc_s *tprlo_acc,
+                u32 d_id, u32 s_id, u16 ox_id, int num_pages)
+{
+        int             page;
+
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+
+        bfa_os_memset(tprlo_acc, 0, (num_pages * 16) + 4);
+        tprlo_acc->command = FC_ELS_ACC;
+
+        tprlo_acc->page_len = 0x10;
+        tprlo_acc->payload_len = bfa_os_htons((num_pages * 16) + 4);
+
+        for (page = 0; page < num_pages; page++) {
+                tprlo_acc->tprlo_acc_params[page].opa_valid = 0;
+                tprlo_acc->tprlo_acc_params[page].rpa_valid = 0;
+                tprlo_acc->tprlo_acc_params[page].fc4type_csp = FC_TYPE_FCP;
+                tprlo_acc->tprlo_acc_params[page].orig_process_assc = 0;
+                tprlo_acc->tprlo_acc_params[page].resp_process_assc = 0;
+        }
+        return bfa_os_ntohs(tprlo_acc->payload_len);
+}
+
+u16
+fc_prlo_acc_build(struct fchs_s *fchs, struct fc_prlo_acc_s *prlo_acc, u32 d_id,
+                  u32 s_id, u16 ox_id, int num_pages)
+{
+        int             page;
+
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+
+        bfa_os_memset(prlo_acc, 0, (num_pages * 16) + 4);
+        prlo_acc->command = FC_ELS_ACC;
+        prlo_acc->page_len = 0x10;
+        prlo_acc->payload_len = bfa_os_htons((num_pages * 16) + 4);
+
+        for (page = 0; page < num_pages; page++) {
+                prlo_acc->prlo_acc_params[page].opa_valid = 0;
+                prlo_acc->prlo_acc_params[page].rpa_valid = 0;
+                prlo_acc->prlo_acc_params[page].fc4type_csp = FC_TYPE_FCP;
+                prlo_acc->prlo_acc_params[page].orig_process_assc = 0;
+                prlo_acc->prlo_acc_params[page].resp_process_assc = 0;
+        }
+
+        return bfa_os_ntohs(prlo_acc->payload_len);
+}
+
+u16
+fc_rnid_build(struct fchs_s *fchs, struct fc_rnid_cmd_s *rnid, u32 d_id,
+                u32 s_id, u16 ox_id, u32 data_format)
+{
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+
+        bfa_os_memset(rnid, 0, sizeof(struct fc_rnid_cmd_s));
+
+        rnid->els_cmd.els_code = FC_ELS_RNID;
+        rnid->node_id_data_format = data_format;
+
+        return sizeof(struct fc_rnid_cmd_s);
+}
+
+u16
+fc_rnid_acc_build(struct fchs_s *fchs, struct fc_rnid_acc_s *rnid_acc, u32 d_id,
+                  u32 s_id, u16 ox_id, u32 data_format,
+                  struct fc_rnid_common_id_data_s *common_id_data,
+                  struct fc_rnid_general_topology_data_s *gen_topo_data)
+{
+        bfa_os_memset(rnid_acc, 0, sizeof(struct fc_rnid_acc_s));
+
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+
+        rnid_acc->els_cmd.els_code = FC_ELS_ACC;
+        rnid_acc->node_id_data_format = data_format;
+        rnid_acc->common_id_data_length =
+                        sizeof(struct fc_rnid_common_id_data_s);
+        rnid_acc->common_id_data = *common_id_data;
+
+        if (data_format == RNID_NODEID_DATA_FORMAT_DISCOVERY) {
+                rnid_acc->specific_id_data_length =
+                        sizeof(struct fc_rnid_general_topology_data_s);
+                bfa_os_assign(rnid_acc->gen_topology_data, *gen_topo_data);
+                return sizeof(struct fc_rnid_acc_s);
+        } else {
+                return sizeof(struct fc_rnid_acc_s) -
+                        sizeof(struct fc_rnid_general_topology_data_s);
+        }
+
+}
+
+u16
+fc_rpsc_build(struct fchs_s *fchs, struct fc_rpsc_cmd_s *rpsc, u32 d_id,
+                u32 s_id, u16 ox_id)
+{
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+
+        bfa_os_memset(rpsc, 0, sizeof(struct fc_rpsc_cmd_s));
+
+        rpsc->els_cmd.els_code = FC_ELS_RPSC;
+        return sizeof(struct fc_rpsc_cmd_s);
+}
+
+u16
+fc_rpsc2_build(struct fchs_s *fchs, struct fc_rpsc2_cmd_s *rpsc2, u32 d_id,
+                u32 s_id, u32 *pid_list, u16 npids)
+{
+        u32 dctlr_id = FC_DOMAIN_CTRLR(bfa_os_hton3b(d_id));
+        int i = 0;
+
+        fc_els_req_build(fchs, bfa_os_hton3b(dctlr_id), s_id, 0);
+
+        bfa_os_memset(rpsc2, 0, sizeof(struct fc_rpsc2_cmd_s));
+
+        rpsc2->els_cmd.els_code = FC_ELS_RPSC;
+        rpsc2->token = bfa_os_htonl(FC_BRCD_TOKEN);
+        rpsc2->num_pids  = bfa_os_htons(npids);
+        for (i = 0; i < npids; i++)
+                rpsc2->pid_list[i].pid = pid_list[i];
+
+        return sizeof(struct fc_rpsc2_cmd_s) + ((npids - 1) * (sizeof(u32)));
+}
+
+u16
+fc_rpsc_acc_build(struct fchs_s *fchs, struct fc_rpsc_acc_s *rpsc_acc,
+                u32 d_id, u32 s_id, u16 ox_id,
+                  struct fc_rpsc_speed_info_s *oper_speed)
+{
+        bfa_os_memset(rpsc_acc, 0, sizeof(struct fc_rpsc_acc_s));
+
+        fc_els_rsp_build(fchs, d_id, s_id, ox_id);
+
+        rpsc_acc->command = FC_ELS_ACC;
+        rpsc_acc->num_entries = bfa_os_htons(1);
+
+        rpsc_acc->speed_info[0].port_speed_cap =
+                bfa_os_htons(oper_speed->port_speed_cap);
+
+        rpsc_acc->speed_info[0].port_op_speed =
+                bfa_os_htons(oper_speed->port_op_speed);
+
+        return sizeof(struct fc_rpsc_acc_s);
+}
+
+/*
+ * TBD -
+ * . get rid of unnecessary memsets
+ */
+
+u16
+fc_logo_rsp_parse(struct fchs_s *fchs, int len)
+{
+        struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
+
+        len = len;
+        if (els_cmd->els_code != FC_ELS_ACC)
+                return FC_PARSE_FAILURE;
+
+        return FC_PARSE_OK;
+}
+
+u16
+fc_pdisc_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
+               wwn_t port_name, wwn_t node_name, u16 pdu_size)
+{
+        struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);
+
+        bfa_os_memcpy(pdisc, &plogi_tmpl, sizeof(struct fc_logi_s));
+
+        pdisc->els_cmd.els_code = FC_ELS_PDISC;
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+
+        pdisc->csp.rxsz = pdisc->class3.rxsz = bfa_os_htons(pdu_size);
+        pdisc->port_name = port_name;
+        pdisc->node_name = node_name;
+
+        return sizeof(struct fc_logi_s);
+}
+
+u16
+fc_pdisc_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name)
+{
+        struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);
+
+        if (len < sizeof(struct fc_logi_s))
+                return FC_PARSE_LEN_INVAL;
+
+        if (pdisc->els_cmd.els_code != FC_ELS_ACC)
+                return FC_PARSE_ACC_INVAL;
+
+        if (!wwn_is_equal(pdisc->port_name, port_name))
+                return FC_PARSE_PWWN_NOT_EQUAL;
+
+        if (!pdisc->class3.class_valid)
+                return FC_PARSE_NWWN_NOT_EQUAL;
+
+        if (bfa_os_ntohs(pdisc->class3.rxsz) < (FC_MIN_PDUSZ))
+                return FC_PARSE_RXSZ_INVAL;
+
+        return FC_PARSE_OK;
+}
+
+u16
+fc_prlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
+              int num_pages)
+{
+        struct fc_prlo_s *prlo = (struct fc_prlo_s *) (fchs + 1);
+        int             page;
+
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+        bfa_os_memset(prlo, 0, (num_pages * 16) + 4);
+        prlo->command = FC_ELS_PRLO;
+        prlo->page_len = 0x10;
+        prlo->payload_len = bfa_os_htons((num_pages * 16) + 4);
+
+        for (page = 0; page < num_pages; page++) {
+                prlo->prlo_params[page].type = FC_TYPE_FCP;
+                prlo->prlo_params[page].opa_valid = 0;
+                prlo->prlo_params[page].rpa_valid = 0;
+                prlo->prlo_params[page].orig_process_assc = 0;
+                prlo->prlo_params[page].resp_process_assc = 0;
+        }
+
+        return bfa_os_ntohs(prlo->payload_len);
+}
+
+u16
+fc_prlo_rsp_parse(struct fchs_s *fchs, int len)
+{
+        struct fc_prlo_acc_s *prlo = (struct fc_prlo_acc_s *) (fchs + 1);
+        int             num_pages = 0;
+        int             page = 0;
+
+        len = len;
+
+        if (prlo->command != FC_ELS_ACC)
+                return FC_PARSE_FAILURE;
+
+        num_pages = ((bfa_os_ntohs(prlo->payload_len)) - 4) / 16;
+
+        for (page = 0; page < num_pages; page++) {
+                if (prlo->prlo_acc_params[page].type != FC_TYPE_FCP)
+                        return FC_PARSE_FAILURE;
+
+                if (prlo->prlo_acc_params[page].opa_valid != 0)
+                        return FC_PARSE_FAILURE;
+
+                if (prlo->prlo_acc_params[page].rpa_valid != 0)
+                        return FC_PARSE_FAILURE;
+
+                if (prlo->prlo_acc_params[page].orig_process_assc != 0)
+                        return FC_PARSE_FAILURE;
+
+                if (prlo->prlo_acc_params[page].resp_process_assc != 0)
+                        return FC_PARSE_FAILURE;
+        }
+        return FC_PARSE_OK;
+
+}
+
+u16
+fc_tprlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
+               int num_pages, enum fc_tprlo_type tprlo_type, u32 tpr_id)
+{
+        struct fc_tprlo_s *tprlo = (struct fc_tprlo_s *) (fchs + 1);
+        int             page;
+
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+        bfa_os_memset(tprlo, 0, (num_pages * 16) + 4);
+        tprlo->command = FC_ELS_TPRLO;
+        tprlo->page_len = 0x10;
+        tprlo->payload_len = bfa_os_htons((num_pages * 16) + 4);
+
+        for (page = 0; page < num_pages; page++) {
+                tprlo->tprlo_params[page].type = FC_TYPE_FCP;
+                tprlo->tprlo_params[page].opa_valid = 0;
+                tprlo->tprlo_params[page].rpa_valid = 0;
+                tprlo->tprlo_params[page].orig_process_assc = 0;
+                tprlo->tprlo_params[page].resp_process_assc = 0;
+                if (tprlo_type == FC_GLOBAL_LOGO) {
+                        tprlo->tprlo_params[page].global_process_logout = 1;
+                } else if (tprlo_type == FC_TPR_LOGO) {
+                        tprlo->tprlo_params[page].tpo_nport_valid = 1;
+                        tprlo->tprlo_params[page].tpo_nport_id = (tpr_id);
+                }
+        }
+
+        return bfa_os_ntohs(tprlo->payload_len);
+}
+
+u16
+fc_tprlo_rsp_parse(struct fchs_s *fchs, int len)
+{
+        struct fc_tprlo_acc_s *tprlo = (struct fc_tprlo_acc_s *) (fchs + 1);
+        int             num_pages = 0;
+        int             page = 0;
+
+        len = len;
+
+        if (tprlo->command != FC_ELS_ACC)
+                return FC_PARSE_ACC_INVAL;
+
+        num_pages = (bfa_os_ntohs(tprlo->payload_len) - 4) / 16;
+
+        for (page = 0; page < num_pages; page++) {
+                if (tprlo->tprlo_acc_params[page].type != FC_TYPE_FCP)
+                        return FC_PARSE_NOT_FCP;
+                if (tprlo->tprlo_acc_params[page].opa_valid != 0)
+                        return FC_PARSE_OPAFLAG_INVAL;
+                if (tprlo->tprlo_acc_params[page].rpa_valid != 0)
+                        return FC_PARSE_RPAFLAG_INVAL;
+                if (tprlo->tprlo_acc_params[page].orig_process_assc != 0)
+                        return FC_PARSE_OPA_INVAL;
+                if (tprlo->tprlo_acc_params[page].resp_process_assc != 0)
+                        return FC_PARSE_RPA_INVAL;
+        }
+        return FC_PARSE_OK;
+}
+
+enum fc_parse_status
+fc_rrq_rsp_parse(struct fchs_s *fchs, int len)
+{
+        struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
+
+        len = len;
+        if (els_cmd->els_code != FC_ELS_ACC)
+                return FC_PARSE_FAILURE;
+
+        return FC_PARSE_OK;
+}
+
+u16
+fc_ba_rjt_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
+                u32 reason_code, u32 reason_expl)
+{
+        struct fc_ba_rjt_s *ba_rjt = (struct fc_ba_rjt_s *) (fchs + 1);
+
+        fc_bls_rsp_build(fchs, d_id, s_id, ox_id);
+
+        fchs->cat_info = FC_CAT_BA_RJT;
+        ba_rjt->reason_code = reason_code;
+        ba_rjt->reason_expl = reason_expl;
+        return sizeof(struct fc_ba_rjt_s);
+}
+
+static void
+fc_gs_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code)
+{
+        bfa_os_memset(cthdr, 0, sizeof(struct ct_hdr_s));
+        cthdr->rev_id = CT_GS3_REVISION;
+        cthdr->gs_type = CT_GSTYPE_DIRSERVICE;
+        cthdr->gs_sub_type = CT_GSSUBTYPE_NAMESERVER;
+        cthdr->cmd_rsp_code = bfa_os_htons(cmd_code);
+}
+
+static void
+fc_gs_fdmi_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code)
+{
+        bfa_os_memset(cthdr, 0, sizeof(struct ct_hdr_s));
+        cthdr->rev_id = CT_GS3_REVISION;
+        cthdr->gs_type = CT_GSTYPE_MGMTSERVICE;
+        cthdr->gs_sub_type = CT_GSSUBTYPE_HBA_MGMTSERVER;
+        cthdr->cmd_rsp_code = bfa_os_htons(cmd_code);
+}
+
+static void
+fc_gs_ms_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code,
+                                         u8 sub_type)
+{
+        bfa_os_memset(cthdr, 0, sizeof(struct ct_hdr_s));
+        cthdr->rev_id = CT_GS3_REVISION;
+        cthdr->gs_type = CT_GSTYPE_MGMTSERVICE;
+        cthdr->gs_sub_type = sub_type;
+        cthdr->cmd_rsp_code = bfa_os_htons(cmd_code);
+}
+
+u16
+fc_gidpn_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
+               wwn_t port_name)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_gidpn_req_s *gidpn = (struct fcgs_gidpn_req_s *)(cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
+        fc_gs_cthdr_build(cthdr, s_id, GS_GID_PN);
+
+        bfa_os_memset(gidpn, 0, sizeof(struct fcgs_gidpn_req_s));
+        gidpn->port_name = port_name;
+        return sizeof(struct fcgs_gidpn_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_gpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
+               u32 port_id)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        fcgs_gpnid_req_t *gpnid = (fcgs_gpnid_req_t *) (cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
+        fc_gs_cthdr_build(cthdr, s_id, GS_GPN_ID);
+
+        bfa_os_memset(gpnid, 0, sizeof(fcgs_gpnid_req_t));
+        gpnid->dap = port_id;
+        return sizeof(fcgs_gpnid_req_t) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_gnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
+               u32 port_id)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        fcgs_gnnid_req_t *gnnid = (fcgs_gnnid_req_t *) (cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
+        fc_gs_cthdr_build(cthdr, s_id, GS_GNN_ID);
+
+        bfa_os_memset(gnnid, 0, sizeof(fcgs_gnnid_req_t));
+        gnnid->dap = port_id;
+        return sizeof(fcgs_gnnid_req_t) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_ct_rsp_parse(struct ct_hdr_s *cthdr)
+{
+        if (bfa_os_ntohs(cthdr->cmd_rsp_code) != CT_RSP_ACCEPT) {
+                if (cthdr->reason_code == CT_RSN_LOGICAL_BUSY)
+                        return FC_PARSE_BUSY;
+                else
+                        return FC_PARSE_FAILURE;
+        }
+
+        return FC_PARSE_OK;
+}
+
+u16
+fc_scr_build(struct fchs_s *fchs, struct fc_scr_s *scr,
+                u8 set_br_reg, u32 s_id, u16 ox_id)
+{
+        u32        d_id = bfa_os_hton3b(FC_FABRIC_CONTROLLER);
+
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+
+        bfa_os_memset(scr, 0, sizeof(struct fc_scr_s));
+        scr->command = FC_ELS_SCR;
+        scr->reg_func = FC_SCR_REG_FUNC_FULL;
+        if (set_br_reg)
+                scr->vu_reg_func = FC_VU_SCR_REG_FUNC_FABRIC_NAME_CHANGE;
+
+        return sizeof(struct fc_scr_s);
+}
+
+u16
+fc_rscn_build(struct fchs_s *fchs, struct fc_rscn_pl_s *rscn,
+                u32 s_id, u16 ox_id)
+{
+        u32        d_id = bfa_os_hton3b(FC_FABRIC_CONTROLLER);
+        u16        payldlen;
+
+        fc_els_req_build(fchs, d_id, s_id, ox_id);
+        rscn->command = FC_ELS_RSCN;
+        rscn->pagelen = sizeof(rscn->event[0]);
+
+        payldlen = sizeof(u32) + rscn->pagelen;
+        rscn->payldlen = bfa_os_htons(payldlen);
+
+        rscn->event[0].format = FC_RSCN_FORMAT_PORTID;
+        rscn->event[0].portid = s_id;
+
+        return sizeof(struct fc_rscn_pl_s);
+}
+
+u16
+fc_rftid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
+               enum bfa_lport_role roles)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rftid_req_s *rftid = (struct fcgs_rftid_req_s *)(cthdr + 1);
+        u32        type_value, d_id = bfa_os_hton3b(FC_NAME_SERVER);
+        u8         index;
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RFT_ID);
+
+        bfa_os_memset(rftid, 0, sizeof(struct fcgs_rftid_req_s));
+
+        rftid->dap = s_id;
+
+        /* By default, FCP FC4 Type is registered */
+        index = FC_TYPE_FCP >> 5;
+        type_value = 1 << (FC_TYPE_FCP % 32);
+        rftid->fc4_type[index] = bfa_os_htonl(type_value);
+
+        return sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_rftid_build_sol(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
+                   u8 *fc4_bitmap, u32 bitmap_size)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rftid_req_s *rftid = (struct fcgs_rftid_req_s *)(cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RFT_ID);
+
+        bfa_os_memset(rftid, 0, sizeof(struct fcgs_rftid_req_s));
+
+        rftid->dap = s_id;
+        bfa_os_memcpy((void *)rftid->fc4_type, (void *)fc4_bitmap,
+                (bitmap_size < 32 ? bitmap_size : 32));
+
+        return sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_rffid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
+               u8 fc4_type, u8 fc4_ftrs)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rffid_req_s *rffid = (struct fcgs_rffid_req_s *)(cthdr + 1);
+        u32         d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RFF_ID);
+
+        bfa_os_memset(rffid, 0, sizeof(struct fcgs_rffid_req_s));
+
+        rffid->dap          = s_id;
+        rffid->fc4ftr_bits  = fc4_ftrs;
+        rffid->fc4_type     = fc4_type;
+
+        return sizeof(struct fcgs_rffid_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_rspnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
+                u8 *name)
+{
+
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rspnid_req_s *rspnid =
+                        (struct fcgs_rspnid_req_s *)(cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RSPN_ID);
+
+        bfa_os_memset(rspnid, 0, sizeof(struct fcgs_rspnid_req_s));
+
+        rspnid->dap = s_id;
+        rspnid->spn_len = (u8) strlen((char *)name);
+        strncpy((char *)rspnid->spn, (char *)name, rspnid->spn_len);
+
+        return sizeof(struct fcgs_rspnid_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_gid_ft_build(struct fchs_s *fchs, void *pyld, u32 s_id, u8 fc4_type)
+{
+
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_gidft_req_s *gidft = (struct fcgs_gidft_req_s *)(cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+
+        fc_gs_cthdr_build(cthdr, s_id, GS_GID_FT);
+
+        bfa_os_memset(gidft, 0, sizeof(struct fcgs_gidft_req_s));
+        gidft->fc4_type = fc4_type;
+        gidft->domain_id = 0;
+        gidft->area_id = 0;
+
+        return sizeof(struct fcgs_gidft_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_rpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
+               wwn_t port_name)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rpnid_req_s *rpnid = (struct fcgs_rpnid_req_s *)(cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RPN_ID);
+
+        bfa_os_memset(rpnid, 0, sizeof(struct fcgs_rpnid_req_s));
+        rpnid->port_id = port_id;
+        rpnid->port_name = port_name;
+
+        return sizeof(struct fcgs_rpnid_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_rnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
+               wwn_t node_name)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rnnid_req_s *rnnid = (struct fcgs_rnnid_req_s *)(cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RNN_ID);
+
+        bfa_os_memset(rnnid, 0, sizeof(struct fcgs_rnnid_req_s));
+        rnnid->port_id = port_id;
+        rnnid->node_name = node_name;
+
+        return sizeof(struct fcgs_rnnid_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_rcsid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
+               u32 cos)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rcsid_req_s *rcsid =
+                        (struct fcgs_rcsid_req_s *) (cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RCS_ID);
+
+        bfa_os_memset(rcsid, 0, sizeof(struct fcgs_rcsid_req_s));
+        rcsid->port_id = port_id;
+        rcsid->cos = cos;
+
+        return sizeof(struct fcgs_rcsid_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_rptid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
+               u8 port_type)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rptid_req_s *rptid = (struct fcgs_rptid_req_s *)(cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RPT_ID);
+
+        bfa_os_memset(rptid, 0, sizeof(struct fcgs_rptid_req_s));
+        rptid->port_id = port_id;
+        rptid->port_type = port_type;
+
+        return sizeof(struct fcgs_rptid_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
+fc_ganxt_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_ganxt_req_s *ganxt = (struct fcgs_ganxt_req_s *)(cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_cthdr_build(cthdr, s_id, GS_GA_NXT);
+
+        bfa_os_memset(ganxt, 0, sizeof(struct fcgs_ganxt_req_s));
+        ganxt->port_id = port_id;
+
+        return sizeof(struct ct_hdr_s) + sizeof(struct fcgs_ganxt_req_s);
+}
+
+/*
+ * Builds fc hdr and ct hdr for FDMI requests.
+ */
+u16
+fc_fdmi_reqhdr_build(struct fchs_s *fchs, void *pyld, u32 s_id,
+                     u16 cmd_code)
+{
+
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        u32        d_id = bfa_os_hton3b(FC_MGMT_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_fdmi_cthdr_build(cthdr, s_id, cmd_code);
+
+        return sizeof(struct ct_hdr_s);
+}
+
+/*
+ * Given a FC4 Type, this function returns a fc4 type bitmask
+ */
+void
+fc_get_fc4type_bitmask(u8 fc4_type, u8 *bit_mask)
+{
+        u8         index;
+        u32       *ptr = (u32 *) bit_mask;
+        u32        type_value;
+
+        /*
+         * @todo : Check for bitmask size
+         */
+
+        index = fc4_type >> 5;
+        type_value = 1 << (fc4_type % 32);
+        ptr[index] = bfa_os_htonl(type_value);
+
+}
+
+/*
+ *      GMAL Request
+ */
+u16
+fc_gmal_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        fcgs_gmal_req_t *gmal = (fcgs_gmal_req_t *) (cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_MGMT_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_ms_cthdr_build(cthdr, s_id, GS_FC_GMAL_CMD,
+                        CT_GSSUBTYPE_CFGSERVER);
+
+        bfa_os_memset(gmal, 0, sizeof(fcgs_gmal_req_t));
+        gmal->wwn = wwn;
+
+        return sizeof(struct ct_hdr_s) + sizeof(fcgs_gmal_req_t);
+}
+
+/*
+ * GFN (Get Fabric Name) Request
+ */
+u16
+fc_gfn_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        fcgs_gfn_req_t *gfn = (fcgs_gfn_req_t *) (cthdr + 1);
+        u32        d_id = bfa_os_hton3b(FC_MGMT_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_ms_cthdr_build(cthdr, s_id, GS_FC_GFN_CMD,
+                        CT_GSSUBTYPE_CFGSERVER);
+
+        bfa_os_memset(gfn, 0, sizeof(fcgs_gfn_req_t));
+        gfn->wwn = wwn;
+
+        return sizeof(struct ct_hdr_s) + sizeof(fcgs_gfn_req_t);
+}