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/* 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 */
/* For converting from state machine function to state encoding. */
#define BFA_SM_TABLE(n, s, e, t) \
struct s; \
enum e; \
typedef void (*t)(struct s *, enum e); \
\
struct n ## _sm_table_s { \
t sm; /* state machine function */ \
int state; /* state machine encoding */ \
char *name; /* state name for display */ \
}; \
\
static inline int \
n ## _sm_to_state(struct n ## _sm_table_s *smt, t sm) \
{ \
int i = 0; \
\
while (smt[i].sm && smt[i].sm != sm) \
i++; \
return smt[i].state; \
}
BFA_SM_TABLE(iocpf, bfa_iocpf, iocpf_event, bfa_fsm_iocpf_t)
BFA_SM_TABLE(ioc, bfa_ioc, ioc_event, bfa_fsm_ioc_t)
BFA_SM_TABLE(cmdq, bfa_msgq_cmdq, cmdq_event, bfa_fsm_msgq_cmdq_t)
BFA_SM_TABLE(rspq, bfa_msgq_rspq, rspq_event, bfa_fsm_msgq_rspq_t)
BFA_SM_TABLE(ioceth, bna_ioceth, bna_ioceth_event, bna_fsm_ioceth_t)
BFA_SM_TABLE(enet, bna_enet, bna_enet_event, bna_fsm_enet_t)
BFA_SM_TABLE(ethport, bna_ethport, bna_ethport_event, bna_fsm_ethport_t)
BFA_SM_TABLE(tx, bna_tx, bna_tx_event, bna_fsm_tx_t)
BFA_SM_TABLE(rxf, bna_rxf, bna_rxf_event, bna_fsm_rxf_t)
BFA_SM_TABLE(rx, bna_rx, bna_rx_event, bna_fsm_rx_t)
#undef BFA_SM_TABLE
#define BFA_SM(_sm) (_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 = (_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 == (_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__ */
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