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stable/11/sys/dev/ocs_fc/ocs_sm.c
Property | Old Value | New Value |
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svn:eol-style | null | native \ No newline at end of property |
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
svn:mime-type | null | text/plain \ No newline at end of property |
/*- | |||||
* Copyright (c) 2017 Broadcom. All rights reserved. | |||||
* The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions are met: | |||||
* | |||||
* 1. Redistributions of source code must retain the above copyright notice, | |||||
* this list of conditions and the following disclaimer. | |||||
* | |||||
* 2. Redistributions in binary form must reproduce the above copyright notice, | |||||
* this list of conditions and the following disclaimer in the documentation | |||||
* and/or other materials provided with the distribution. | |||||
* | |||||
* 3. Neither the name of the copyright holder nor the names of its contributors | |||||
* may be used to endorse or promote products derived from this software | |||||
* without specific prior written permission. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |||||
* POSSIBILITY OF SUCH DAMAGE. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
/** | |||||
* @file | |||||
* Generic state machine framework. | |||||
*/ | |||||
#include "ocs_os.h" | |||||
#include "ocs_sm.h" | |||||
const char *ocs_sm_id[] = { | |||||
"common", | |||||
"domain", | |||||
"login" | |||||
}; | |||||
/** | |||||
* @brief Post an event to a context. | |||||
* | |||||
* @param ctx State machine context | |||||
* @param evt Event to post | |||||
* @param data Event-specific data (if any) | |||||
* | |||||
* @return 0 if successfully posted event; -1 if state machine | |||||
* is disabled | |||||
*/ | |||||
int | |||||
ocs_sm_post_event(ocs_sm_ctx_t *ctx, ocs_sm_event_t evt, void *data) | |||||
{ | |||||
if (ctx->current_state) { | |||||
ctx->current_state(ctx, evt, data); | |||||
return 0; | |||||
} else { | |||||
return -1; | |||||
} | |||||
} | |||||
/** | |||||
* @brief Transition to a new state. | |||||
*/ | |||||
void | |||||
ocs_sm_transition(ocs_sm_ctx_t *ctx, ocs_sm_function_t state, void *data) | |||||
{ | |||||
if (ctx->current_state == state) { | |||||
ocs_sm_post_event(ctx, OCS_EVT_REENTER, data); | |||||
} else { | |||||
ocs_sm_post_event(ctx, OCS_EVT_EXIT, data); | |||||
ctx->current_state = state; | |||||
ocs_sm_post_event(ctx, OCS_EVT_ENTER, data); | |||||
} | |||||
} | |||||
/** | |||||
* @brief Disable further state machine processing. | |||||
*/ | |||||
void | |||||
ocs_sm_disable(ocs_sm_ctx_t *ctx) | |||||
{ | |||||
ctx->current_state = NULL; | |||||
} | |||||
const char *ocs_sm_event_name(ocs_sm_event_t evt) | |||||
{ | |||||
switch (evt) { | |||||
#define RETEVT(x) case x: return #x; | |||||
RETEVT(OCS_EVT_ENTER) | |||||
RETEVT(OCS_EVT_REENTER) | |||||
RETEVT(OCS_EVT_EXIT) | |||||
RETEVT(OCS_EVT_SHUTDOWN) | |||||
RETEVT(OCS_EVT_RESPONSE) | |||||
RETEVT(OCS_EVT_RESUME) | |||||
RETEVT(OCS_EVT_TIMER_EXPIRED) | |||||
RETEVT(OCS_EVT_ERROR) | |||||
RETEVT(OCS_EVT_SRRS_ELS_REQ_OK) | |||||
RETEVT(OCS_EVT_SRRS_ELS_CMPL_OK) | |||||
RETEVT(OCS_EVT_SRRS_ELS_REQ_FAIL) | |||||
RETEVT(OCS_EVT_SRRS_ELS_CMPL_FAIL) | |||||
RETEVT(OCS_EVT_SRRS_ELS_REQ_RJT) | |||||
RETEVT(OCS_EVT_NODE_ATTACH_OK) | |||||
RETEVT(OCS_EVT_NODE_ATTACH_FAIL) | |||||
RETEVT(OCS_EVT_NODE_FREE_OK) | |||||
RETEVT(OCS_EVT_ELS_REQ_TIMEOUT) | |||||
RETEVT(OCS_EVT_ELS_REQ_ABORTED) | |||||
RETEVT(OCS_EVT_ABORT_ELS) | |||||
RETEVT(OCS_EVT_ELS_ABORT_CMPL) | |||||
RETEVT(OCS_EVT_DOMAIN_FOUND) | |||||
RETEVT(OCS_EVT_DOMAIN_ALLOC_OK) | |||||
RETEVT(OCS_EVT_DOMAIN_ALLOC_FAIL) | |||||
RETEVT(OCS_EVT_DOMAIN_REQ_ATTACH) | |||||
RETEVT(OCS_EVT_DOMAIN_ATTACH_OK) | |||||
RETEVT(OCS_EVT_DOMAIN_ATTACH_FAIL) | |||||
RETEVT(OCS_EVT_DOMAIN_LOST) | |||||
RETEVT(OCS_EVT_DOMAIN_FREE_OK) | |||||
RETEVT(OCS_EVT_DOMAIN_FREE_FAIL) | |||||
RETEVT(OCS_EVT_HW_DOMAIN_REQ_ATTACH) | |||||
RETEVT(OCS_EVT_HW_DOMAIN_REQ_FREE) | |||||
RETEVT(OCS_EVT_ALL_CHILD_NODES_FREE) | |||||
RETEVT(OCS_EVT_SPORT_ALLOC_OK) | |||||
RETEVT(OCS_EVT_SPORT_ALLOC_FAIL) | |||||
RETEVT(OCS_EVT_SPORT_ATTACH_OK) | |||||
RETEVT(OCS_EVT_SPORT_ATTACH_FAIL) | |||||
RETEVT(OCS_EVT_SPORT_FREE_OK) | |||||
RETEVT(OCS_EVT_SPORT_FREE_FAIL) | |||||
RETEVT(OCS_EVT_SPORT_TOPOLOGY_NOTIFY) | |||||
RETEVT(OCS_EVT_HW_PORT_ALLOC_OK) | |||||
RETEVT(OCS_EVT_HW_PORT_ALLOC_FAIL) | |||||
RETEVT(OCS_EVT_HW_PORT_ATTACH_OK) | |||||
RETEVT(OCS_EVT_HW_PORT_REQ_ATTACH) | |||||
RETEVT(OCS_EVT_HW_PORT_REQ_FREE) | |||||
RETEVT(OCS_EVT_HW_PORT_FREE_OK) | |||||
RETEVT(OCS_EVT_NODE_FREE_FAIL) | |||||
RETEVT(OCS_EVT_ABTS_RCVD) | |||||
RETEVT(OCS_EVT_NODE_MISSING) | |||||
RETEVT(OCS_EVT_NODE_REFOUND) | |||||
RETEVT(OCS_EVT_SHUTDOWN_IMPLICIT_LOGO) | |||||
RETEVT(OCS_EVT_SHUTDOWN_EXPLICIT_LOGO) | |||||
RETEVT(OCS_EVT_ELS_FRAME) | |||||
RETEVT(OCS_EVT_PLOGI_RCVD) | |||||
RETEVT(OCS_EVT_FLOGI_RCVD) | |||||
RETEVT(OCS_EVT_LOGO_RCVD) | |||||
RETEVT(OCS_EVT_PRLI_RCVD) | |||||
RETEVT(OCS_EVT_PRLO_RCVD) | |||||
RETEVT(OCS_EVT_PDISC_RCVD) | |||||
RETEVT(OCS_EVT_FDISC_RCVD) | |||||
RETEVT(OCS_EVT_ADISC_RCVD) | |||||
RETEVT(OCS_EVT_RSCN_RCVD) | |||||
RETEVT(OCS_EVT_SCR_RCVD) | |||||
RETEVT(OCS_EVT_ELS_RCVD) | |||||
RETEVT(OCS_EVT_LAST) | |||||
RETEVT(OCS_EVT_FCP_CMD_RCVD) | |||||
RETEVT(OCS_EVT_RFT_ID_RCVD) | |||||
RETEVT(OCS_EVT_RFF_ID_RCVD) | |||||
RETEVT(OCS_EVT_GNN_ID_RCVD) | |||||
RETEVT(OCS_EVT_GPN_ID_RCVD) | |||||
RETEVT(OCS_EVT_GFPN_ID_RCVD) | |||||
RETEVT(OCS_EVT_GFF_ID_RCVD) | |||||
RETEVT(OCS_EVT_GID_FT_RCVD) | |||||
RETEVT(OCS_EVT_GID_PT_RCVD) | |||||
RETEVT(OCS_EVT_RPN_ID_RCVD) | |||||
RETEVT(OCS_EVT_RNN_ID_RCVD) | |||||
RETEVT(OCS_EVT_RCS_ID_RCVD) | |||||
RETEVT(OCS_EVT_RSNN_NN_RCVD) | |||||
RETEVT(OCS_EVT_RSPN_ID_RCVD) | |||||
RETEVT(OCS_EVT_RHBA_RCVD) | |||||
RETEVT(OCS_EVT_RPA_RCVD) | |||||
RETEVT(OCS_EVT_GIDPT_DELAY_EXPIRED) | |||||
RETEVT(OCS_EVT_ABORT_IO) | |||||
RETEVT(OCS_EVT_ABORT_IO_NO_RESP) | |||||
RETEVT(OCS_EVT_IO_CMPL) | |||||
RETEVT(OCS_EVT_IO_CMPL_ERRORS) | |||||
RETEVT(OCS_EVT_RESP_CMPL) | |||||
RETEVT(OCS_EVT_ABORT_CMPL) | |||||
RETEVT(OCS_EVT_NODE_ACTIVE_IO_LIST_EMPTY) | |||||
RETEVT(OCS_EVT_NODE_DEL_INI_COMPLETE) | |||||
RETEVT(OCS_EVT_NODE_DEL_TGT_COMPLETE) | |||||
RETEVT(OCS_EVT_IO_ABORTED_BY_TMF) | |||||
RETEVT(OCS_EVT_IO_ABORT_IGNORED) | |||||
RETEVT(OCS_EVT_IO_FIRST_BURST) | |||||
RETEVT(OCS_EVT_IO_FIRST_BURST_ERR) | |||||
RETEVT(OCS_EVT_IO_FIRST_BURST_ABORTED) | |||||
default: | |||||
break; | |||||
#undef RETEVT | |||||
} | |||||
return "unknown"; | |||||
} |