1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/net/bna/bfa_sm.h b/drivers/net/bna/bfa_sm.h
new file mode 100644
index 00000000000..46462c49b6f
--- /dev/null
+++ b/drivers/net/bna/bfa_sm.h
@@ -0,0 +1,88 @@
+/*
+ * Linux network driver for Brocade Converged Network Adapter.
+ *
+ * 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.
+ */
+/*
+ * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ */
+
+/**
+ * @file bfasm.h State machine defines
+ */
+
+#ifndef __BFA_SM_H__
+#define __BFA_SM_H__
+
+#include "cna.h"
+
+typedef void (*bfa_sm_t)(void *sm, 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_sm_state_decl(oc, st, otype, etype)		\
+	static void oc ## _sm_ ## st(otype * fsm, etype event)
+
+#define bfa_sm_set_state(_sm, _state)	((_sm)->sm = (bfa_sm_t)(_state))
+#define bfa_sm_send_event(_sm, _event)	((_sm)->sm((_sm), (_event)))
+#define bfa_sm_get_state(_sm)		((_sm)->sm)
+#define bfa_sm_cmp_state(_sm, _state)	((_sm)->sm == (bfa_sm_t)(_state))
+
+/**
+ * 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_get_state(_fsm)			((_fsm)->fsm)
+#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;
+}
+#endif