2 * Linux network driver for Brocade Converged Network Adapter.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License (GPL) Version 2 as
6 * published by the Free Software Foundation
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
14 * Copyright (c) 2005-2011 Brocade Communications Systems, Inc.
19 /* BFA common services */
26 /* BFA state machine interfaces */
28 typedef void (*bfa_sm_t)(void *sm, int event);
30 /* oc - object class eg. bfa_ioc
31 * st - state, eg. reset
32 * otype - object type, eg. struct bfa_ioc
33 * etype - object type, eg. enum ioc_event
35 #define bfa_sm_state_decl(oc, st, otype, etype) \
36 static void oc ## _sm_ ## st(otype * fsm, etype event)
38 #define bfa_sm_set_state(_sm, _state) ((_sm)->sm = (bfa_sm_t)(_state))
39 #define bfa_sm_send_event(_sm, _event) ((_sm)->sm((_sm), (_event)))
40 #define bfa_sm_get_state(_sm) ((_sm)->sm)
41 #define bfa_sm_cmp_state(_sm, _state) ((_sm)->sm == (bfa_sm_t)(_state))
43 /* For converting from state machine function to state encoding. */
45 bfa_sm_t sm; /*!< state machine function */
46 int state; /*!< state machine encoding */
47 char *name; /*!< state name for display */
49 #define BFA_SM(_sm) ((bfa_sm_t)(_sm))
51 /* State machine with entry actions. */
52 typedef void (*bfa_fsm_t)(void *fsm, int event);
54 /* oc - object class eg. bfa_ioc
55 * st - state, eg. reset
56 * otype - object type, eg. struct bfa_ioc
57 * etype - object type, eg. enum ioc_event
59 #define bfa_fsm_state_decl(oc, st, otype, etype) \
60 static void oc ## _sm_ ## st(otype * fsm, etype event); \
61 static void oc ## _sm_ ## st ## _entry(otype * fsm)
63 #define bfa_fsm_set_state(_fsm, _state) do { \
64 (_fsm)->fsm = (bfa_fsm_t)(_state); \
65 _state ## _entry(_fsm); \
68 #define bfa_fsm_send_event(_fsm, _event) ((_fsm)->fsm((_fsm), (_event)))
69 #define bfa_fsm_get_state(_fsm) ((_fsm)->fsm)
70 #define bfa_fsm_cmp_state(_fsm, _state) \
71 ((_fsm)->fsm == (bfa_fsm_t)(_state))
74 bfa_sm_to_state(const struct bfa_sm_table *smt, bfa_sm_t sm)
78 while (smt[i].sm && smt[i].sm != sm)
83 /* Generic wait counter. */
85 typedef void (*bfa_wc_resume_t) (void *cbarg);
88 bfa_wc_resume_t wc_resume;
94 bfa_wc_up(struct bfa_wc *wc)
100 bfa_wc_down(struct bfa_wc *wc)
103 if (wc->wc_count == 0)
104 wc->wc_resume(wc->wc_cbarg);
107 /* Initialize a waiting counter. */
109 bfa_wc_init(struct bfa_wc *wc, bfa_wc_resume_t wc_resume, void *wc_cbarg)
111 wc->wc_resume = wc_resume;
112 wc->wc_cbarg = wc_cbarg;
117 /* Wait for counter to reach zero */
119 bfa_wc_wait(struct bfa_wc *wc)
124 #endif /* __BFA_CS_H__ */