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52fa7bf9ea
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 66 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.606369721@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
104 lines
2.2 KiB
C
104 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Linux network driver for QLogic BR-series Converged Network Adapter.
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*/
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/*
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* Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
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* Copyright (c) 2014-2015 QLogic Corporation
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* All rights reserved
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* www.qlogic.com
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*/
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/* BFA common services */
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#ifndef __BFA_CS_H__
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#define __BFA_CS_H__
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#include "cna.h"
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/* BFA state machine interfaces */
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typedef void (*bfa_sm_t)(void *sm, int event);
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/* For converting from state machine function to state encoding. */
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struct bfa_sm_table {
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bfa_sm_t sm; /*!< state machine function */
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int state; /*!< state machine encoding */
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char *name; /*!< state name for display */
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};
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#define BFA_SM(_sm) ((bfa_sm_t)(_sm))
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/* State machine with entry actions. */
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typedef void (*bfa_fsm_t)(void *fsm, int event);
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/* oc - object class eg. bfa_ioc
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* st - state, eg. reset
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* otype - object type, eg. struct bfa_ioc
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* etype - object type, eg. enum ioc_event
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*/
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#define bfa_fsm_state_decl(oc, st, otype, etype) \
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static void oc ## _sm_ ## st(otype * fsm, etype event); \
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static void oc ## _sm_ ## st ## _entry(otype * fsm)
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#define bfa_fsm_set_state(_fsm, _state) do { \
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(_fsm)->fsm = (bfa_fsm_t)(_state); \
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_state ## _entry(_fsm); \
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} while (0)
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#define bfa_fsm_send_event(_fsm, _event) ((_fsm)->fsm((_fsm), (_event)))
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#define bfa_fsm_cmp_state(_fsm, _state) \
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((_fsm)->fsm == (bfa_fsm_t)(_state))
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static inline int
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bfa_sm_to_state(const struct bfa_sm_table *smt, bfa_sm_t sm)
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{
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int i = 0;
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while (smt[i].sm && smt[i].sm != sm)
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i++;
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return smt[i].state;
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}
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/* Generic wait counter. */
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typedef void (*bfa_wc_resume_t) (void *cbarg);
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struct bfa_wc {
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bfa_wc_resume_t wc_resume;
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void *wc_cbarg;
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int wc_count;
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};
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static inline void
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bfa_wc_up(struct bfa_wc *wc)
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{
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wc->wc_count++;
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}
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static inline void
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bfa_wc_down(struct bfa_wc *wc)
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{
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wc->wc_count--;
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if (wc->wc_count == 0)
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wc->wc_resume(wc->wc_cbarg);
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}
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/* Initialize a waiting counter. */
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static inline void
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bfa_wc_init(struct bfa_wc *wc, bfa_wc_resume_t wc_resume, void *wc_cbarg)
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{
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wc->wc_resume = wc_resume;
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wc->wc_cbarg = wc_cbarg;
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wc->wc_count = 0;
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bfa_wc_up(wc);
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}
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/* Wait for counter to reach zero */
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static inline void
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bfa_wc_wait(struct bfa_wc *wc)
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{
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bfa_wc_down(wc);
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}
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#endif /* __BFA_CS_H__ */
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