path: root/drivers/scsi/bfa/fdmi.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.
 */

/**
 *  port_api.c BFA FCS port
 */


#include <bfa.h>
#include <bfa_svc.h>
#include "fcs_lport.h"
#include "fcs_rport.h"
#include "lport_priv.h"
#include "fcs_trcmod.h"
#include "fcs_fcxp.h"
#include <fcs/bfa_fcs_fdmi.h>

BFA_TRC_FILE(FCS, FDMI);

#define BFA_FCS_FDMI_CMD_MAX_RETRIES 2

/*
 * forward declarations
 */
static void     bfa_fcs_port_fdmi_send_rhba(void *fdmi_cbarg,
					    struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_port_fdmi_send_rprt(void *fdmi_cbarg,
					    struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_port_fdmi_send_rpa(void *fdmi_cbarg,
					   struct bfa_fcxp_s *fcxp_alloced);
static void     bfa_fcs_port_fdmi_rhba_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_fdmi_rprt_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_fdmi_rpa_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_fdmi_timeout(void *arg);
static u16 bfa_fcs_port_fdmi_build_rhba_pyld(
			struct bfa_fcs_port_fdmi_s *fdmi, u8 *pyld);
static u16 bfa_fcs_port_fdmi_build_rprt_pyld(
			struct bfa_fcs_port_fdmi_s *fdmi, u8 *pyld);
static u16 bfa_fcs_port_fdmi_build_rpa_pyld(
			struct bfa_fcs_port_fdmi_s *fdmi, u8 *pyld);
static u16 bfa_fcs_port_fdmi_build_portattr_block(
			struct bfa_fcs_port_fdmi_s *fdmi, u8 *pyld);
static void bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_port_fdmi_s *fdmi,
			struct bfa_fcs_fdmi_hba_attr_s *hba_attr);
static void bfa_fcs_fdmi_get_portattr(struct bfa_fcs_port_fdmi_s *fdmi,
			struct bfa_fcs_fdmi_port_attr_s *port_attr);
/**
 *  fcs_fdmi_sm FCS FDMI state machine
 */

/**
 *  FDMI State Machine events
 */
enum port_fdmi_event {
	FDMISM_EVENT_PORT_ONLINE = 1,
	FDMISM_EVENT_PORT_OFFLINE = 2,
	FDMISM_EVENT_RSP_OK = 4,
	FDMISM_EVENT_RSP_ERROR = 5,
	FDMISM_EVENT_TIMEOUT = 6,
	FDMISM_EVENT_RHBA_SENT = 7,
	FDMISM_EVENT_RPRT_SENT = 8,
	FDMISM_EVENT_RPA_SENT = 9,
};

static void bfa_fcs_port_fdmi_sm_offline(struct bfa_fcs_port_fdmi_s *fdmi,
			enum port_fdmi_event event);
static void bfa_fcs_port_fdmi_sm_sending_rhba(struct bfa_fcs_port_fdmi_s *fdmi,
			enum port_fdmi_eve