/* SPDX-License-Identifier: GPL-2.0-only */ /* * Linux network driver for QLogic BR-series Converged Network Adapter. */ /* * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. * Copyright (c) 2014-2015 QLogic Corporation * All rights reserved * www.qlogic.com */ /* BFA common services */ #ifndef __BFA_CS_H__ #define __BFA_CS_H__ #include "cna.h" /* BFA state machine interfaces */ typedef void (*bfa_sm_t)(void *sm, int event); /* For converting from state machine function to state encoding. */ struct bfa_sm_table { bfa_sm_t sm; /*!< state machine function */ int state; /*!< state machine encoding */ char *name; /*!< state name for display */ }; #define BFA_SM(_sm) ((bfa_sm_t)(_sm)) /* State machine with entry actions. */ typedef void (*bfa_fsm_t)(void *fsm, int event); /* oc - object class eg. bfa_ioc * st - state, eg. reset * otype - object type, eg. struct bfa_ioc * etype - object type, eg. enum ioc_event */ #define bfa_fsm_state_decl(oc, st, otype, etype) \ static void oc ## _sm_ ## st(otype * fsm, etype event); \ static void oc ## _sm_ ## st ## _entry(otype * fsm) #define bfa_fsm_set_state(_fsm, _state) do { \ (_fsm)->fsm = (bfa_fsm_t)(_state); \ _state ## _entry(_fsm); \ } while (0) #define bfa_fsm_send_event(_fsm, _event) ((_fsm)->fsm((_fsm), (_event))) #define bfa_fsm_cmp_state(_fsm, _state) \ ((_fsm)->fsm == (bfa_fsm_t)(_state)) static inline int bfa_sm_to_state(const struct bfa_sm_table *smt, bfa_sm_t sm) { int i = 0; while (smt[i].sm && smt[i].sm != sm) i++; return smt[i].state; } /* Generic wait counter. */ typedef void (*bfa_wc_resume_t) (void *cbarg); struct bfa_wc { bfa_wc_resume_t wc_resume; void *wc_cbarg; int wc_count; }; static inline void bfa_wc_up(struct bfa_wc *wc) { wc->wc_count++; } static inline void bfa_wc_down(struct bfa_wc *wc) { wc->wc_count--; if (wc->wc_count == 0) wc->wc_resume(wc->wc_cbarg); } /* Initialize a waiting counter. */ static inline void bfa_wc_init(struct bfa_wc *wc, bfa_wc_resume_t wc_resume, void *wc_cbarg) { wc->wc_resume = wc_resume; wc->wc_cbarg = wc_cbarg; wc->wc_count = 0; bfa_wc_up(wc); } /* Wait for counter to reach zero */ static inline void bfa_wc_wait(struct bfa_wc *wc) { bfa_wc_down(wc); } #endif /* __BFA_CS_H__ */