1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/net/ethernet/brocade/bna/bfa_cs.h b/drivers/net/ethernet/brocade/bna/bfa_cs.h
new file mode 100644
index 0000000000..858c921294
--- /dev/null
+++ b/drivers/net/ethernet/brocade/bna/bfa_cs.h
@@ -0,0 +1,119 @@
+/* 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__ */