path: root/drivers/scsi/bfa/ns.c

/*
 * Copyright (c) 2005-2009 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.
 */

/**
 * @page ns_sm_info VPORT NS State Machine
 *
 * @section ns_sm_interactions VPORT NS State Machine Interactions
 *
 * @section ns_sm VPORT NS State Machine
 * 	img ns_sm.jpg
 */
#include <bfa.h>
#include <bfa_svc.h>
#include <bfa_iocfc.h>
#include "fcs_lport.h"
#include "fcs_rport.h"
#include "fcs_trcmod.h"
#include "fcs_fcxp.h"
#include "fcs.h"
#include "lport_priv.h"

BFA_TRC_FILE(FCS, NS);

/*
 * forward declarations
 */
static void     bfa_fcs_port_ns_send_plogi(void *ns_cbarg,
					   struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_port_ns_send_rspn_id(void *ns_cbarg,
					     struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_port_ns_send_rft_id(void *ns_cbarg,
					    struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_port_ns_send_rff_id(void *ns_cbarg,
					    struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_port_ns_send_gid_ft(void *ns_cbarg,
					    struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_port_ns_timeout(void *arg);
static void     bfa_fcs_port_ns_plogi_response(void *fcsarg,
					       struct bfa_fcxp_s *fcxp,
					       void *cbarg,
					       bfa_status_t req_status,
					       u32 rsp_len,
					       u32 resid_len,
					       struct fchs_s *rsp_fchs);
static void     bfa_fcs_port_ns_rspn_id_response(void *fcsarg,
						 struct bfa_fcxp_s *fcxp,
						 void *cbarg,
						 bfa_status_t req_status,
						 u32 rsp_len,
						 u32 resid_len,
						 struct fchs_s *rsp_fchs);
static void     bfa_fcs_port_ns_rft_id_response(void *fcsarg,
						struct bfa_fcxp_s *fcxp,
						void *cbarg,
						bfa_status_t req_status,
						u32 rsp_len,
						u32 resid_len,
						struct fchs_s *rsp_fchs);
static void     bfa_fcs_port_ns_rff_id_response(void *fcsarg,
						struct bfa_fcxp_s *fcxp,
						void *cbarg,
						bfa_status_t req_status,
						u32 rsp_len,
						u32 resid_len,
						struct fchs_s *rsp_fchs);
static void     bfa_fcs_port_ns_gid_ft_response(void *fcsarg,
						struct bfa_fcxp_s *fcxp,
						void *cbarg,
						bfa_status_t req_status,
						u32 rsp_len,
						u32 resid_len,
						struct fchs_s *rsp_fchs);
static void     bfa_fcs_port_ns_process_gidft_pids(struct bfa_fcs_port_s *port,
						   u32 *pid_buf,
						   u32 n_pids);

static void     bfa_fcs_port_ns_boot_target_disc(struct bfa_fcs_port_s *port);
/**
 *  fcs_ns_sm FCS nameserver interface state machine
 */

/**
 * VPort NS State Machine events
 */
enum vport_ns_event {
	NSSM_EVENT_PORT_ONLINE = 1,
	NSSM_EVENT_PORT_OFFLINE = 2,
	NSSM_EVENT_PLOGI_SENT =