206 lines
5.7 KiB
C
206 lines
5.7 KiB
C
/*-
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* Copyright (c) 2017 Broadcom. All rights reserved.
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* The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file
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* Generic state machine framework.
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*/
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#include "ocs_os.h"
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#include "ocs_sm.h"
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const char *ocs_sm_id[] = {
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"common",
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"domain",
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"login"
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};
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/**
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* @brief Post an event to a context.
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*
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* @param ctx State machine context
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* @param evt Event to post
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* @param data Event-specific data (if any)
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*
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* @return 0 if successfully posted event; -1 if state machine
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* is disabled
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*/
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int
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ocs_sm_post_event(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *data)
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{
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if (ctx->current_state) {
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ctx->current_state(ctx, evt, data);
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return 0;
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} else {
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return -1;
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}
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}
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/**
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* @brief Transition to a new state.
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*/
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void
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ocs_sm_transition(ocs_sm_ctx_t *ctx, ocs_sm_function_t state, void *data)
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{
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if (ctx->current_state == state) {
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ocs_sm_post_event(ctx, OCS_EVT_REENTER, data);
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} else {
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ocs_sm_post_event(ctx, OCS_EVT_EXIT, data);
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ctx->current_state = state;
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ocs_sm_post_event(ctx, OCS_EVT_ENTER, data);
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}
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}
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/**
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* @brief Disable further state machine processing.
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*/
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void
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ocs_sm_disable(ocs_sm_ctx_t *ctx)
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{
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ctx->current_state = NULL;
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}
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const char *ocs_sm_event_name(ocs_sm_event_t evt)
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{
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switch (evt) {
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#define RETEVT(x) case x: return #x;
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RETEVT(OCS_EVT_ENTER)
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RETEVT(OCS_EVT_REENTER)
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RETEVT(OCS_EVT_EXIT)
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RETEVT(OCS_EVT_SHUTDOWN)
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RETEVT(OCS_EVT_RESPONSE)
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RETEVT(OCS_EVT_RESUME)
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RETEVT(OCS_EVT_TIMER_EXPIRED)
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RETEVT(OCS_EVT_ERROR)
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RETEVT(OCS_EVT_SRRS_ELS_REQ_OK)
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RETEVT(OCS_EVT_SRRS_ELS_CMPL_OK)
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RETEVT(OCS_EVT_SRRS_ELS_REQ_FAIL)
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RETEVT(OCS_EVT_SRRS_ELS_CMPL_FAIL)
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RETEVT(OCS_EVT_SRRS_ELS_REQ_RJT)
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RETEVT(OCS_EVT_NODE_ATTACH_OK)
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RETEVT(OCS_EVT_NODE_ATTACH_FAIL)
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RETEVT(OCS_EVT_NODE_FREE_OK)
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RETEVT(OCS_EVT_ELS_REQ_TIMEOUT)
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RETEVT(OCS_EVT_ELS_REQ_ABORTED)
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RETEVT(OCS_EVT_ABORT_ELS)
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RETEVT(OCS_EVT_ELS_ABORT_CMPL)
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RETEVT(OCS_EVT_DOMAIN_FOUND)
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RETEVT(OCS_EVT_DOMAIN_ALLOC_OK)
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RETEVT(OCS_EVT_DOMAIN_ALLOC_FAIL)
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RETEVT(OCS_EVT_DOMAIN_REQ_ATTACH)
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RETEVT(OCS_EVT_DOMAIN_ATTACH_OK)
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RETEVT(OCS_EVT_DOMAIN_ATTACH_FAIL)
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RETEVT(OCS_EVT_DOMAIN_LOST)
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RETEVT(OCS_EVT_DOMAIN_FREE_OK)
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RETEVT(OCS_EVT_DOMAIN_FREE_FAIL)
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RETEVT(OCS_EVT_HW_DOMAIN_REQ_ATTACH)
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RETEVT(OCS_EVT_HW_DOMAIN_REQ_FREE)
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RETEVT(OCS_EVT_ALL_CHILD_NODES_FREE)
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RETEVT(OCS_EVT_SPORT_ALLOC_OK)
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RETEVT(OCS_EVT_SPORT_ALLOC_FAIL)
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RETEVT(OCS_EVT_SPORT_ATTACH_OK)
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RETEVT(OCS_EVT_SPORT_ATTACH_FAIL)
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RETEVT(OCS_EVT_SPORT_FREE_OK)
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RETEVT(OCS_EVT_SPORT_FREE_FAIL)
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RETEVT(OCS_EVT_SPORT_TOPOLOGY_NOTIFY)
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RETEVT(OCS_EVT_HW_PORT_ALLOC_OK)
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RETEVT(OCS_EVT_HW_PORT_ALLOC_FAIL)
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RETEVT(OCS_EVT_HW_PORT_ATTACH_OK)
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RETEVT(OCS_EVT_HW_PORT_REQ_ATTACH)
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RETEVT(OCS_EVT_HW_PORT_REQ_FREE)
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RETEVT(OCS_EVT_HW_PORT_FREE_OK)
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RETEVT(OCS_EVT_NODE_FREE_FAIL)
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RETEVT(OCS_EVT_ABTS_RCVD)
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RETEVT(OCS_EVT_NODE_MISSING)
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RETEVT(OCS_EVT_NODE_REFOUND)
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RETEVT(OCS_EVT_SHUTDOWN_IMPLICIT_LOGO)
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RETEVT(OCS_EVT_SHUTDOWN_EXPLICIT_LOGO)
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RETEVT(OCS_EVT_ELS_FRAME)
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RETEVT(OCS_EVT_PLOGI_RCVD)
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RETEVT(OCS_EVT_FLOGI_RCVD)
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RETEVT(OCS_EVT_LOGO_RCVD)
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RETEVT(OCS_EVT_PRLI_RCVD)
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RETEVT(OCS_EVT_PRLO_RCVD)
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RETEVT(OCS_EVT_PDISC_RCVD)
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RETEVT(OCS_EVT_FDISC_RCVD)
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RETEVT(OCS_EVT_ADISC_RCVD)
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RETEVT(OCS_EVT_RSCN_RCVD)
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RETEVT(OCS_EVT_SCR_RCVD)
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RETEVT(OCS_EVT_ELS_RCVD)
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RETEVT(OCS_EVT_LAST)
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RETEVT(OCS_EVT_FCP_CMD_RCVD)
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RETEVT(OCS_EVT_RFT_ID_RCVD)
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RETEVT(OCS_EVT_RFF_ID_RCVD)
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RETEVT(OCS_EVT_GNN_ID_RCVD)
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RETEVT(OCS_EVT_GPN_ID_RCVD)
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RETEVT(OCS_EVT_GFPN_ID_RCVD)
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RETEVT(OCS_EVT_GFF_ID_RCVD)
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RETEVT(OCS_EVT_GID_FT_RCVD)
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RETEVT(OCS_EVT_GID_PT_RCVD)
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RETEVT(OCS_EVT_RPN_ID_RCVD)
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RETEVT(OCS_EVT_RNN_ID_RCVD)
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RETEVT(OCS_EVT_RCS_ID_RCVD)
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RETEVT(OCS_EVT_RSNN_NN_RCVD)
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RETEVT(OCS_EVT_RSPN_ID_RCVD)
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RETEVT(OCS_EVT_RHBA_RCVD)
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RETEVT(OCS_EVT_RPA_RCVD)
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RETEVT(OCS_EVT_GIDPT_DELAY_EXPIRED)
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RETEVT(OCS_EVT_ABORT_IO)
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RETEVT(OCS_EVT_ABORT_IO_NO_RESP)
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RETEVT(OCS_EVT_IO_CMPL)
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RETEVT(OCS_EVT_IO_CMPL_ERRORS)
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RETEVT(OCS_EVT_RESP_CMPL)
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RETEVT(OCS_EVT_ABORT_CMPL)
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RETEVT(OCS_EVT_NODE_ACTIVE_IO_LIST_EMPTY)
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RETEVT(OCS_EVT_NODE_DEL_INI_COMPLETE)
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RETEVT(OCS_EVT_NODE_DEL_TGT_COMPLETE)
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RETEVT(OCS_EVT_IO_ABORTED_BY_TMF)
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RETEVT(OCS_EVT_IO_ABORT_IGNORED)
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RETEVT(OCS_EVT_IO_FIRST_BURST)
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RETEVT(OCS_EVT_IO_FIRST_BURST_ERR)
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RETEVT(OCS_EVT_IO_FIRST_BURST_ABORTED)
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default:
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break;
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#undef RETEVT
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}
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return "unknown";
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}
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