From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 drivers/net/ethernet/brocade/bna/bfa_cs.h | 125 ++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 drivers/net/ethernet/brocade/bna/bfa_cs.h

(limited to 'drivers/net/ethernet/brocade/bna/bfa_cs.h')

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 000000000..af25d8e8f
--- /dev/null
+++ b/drivers/net/ethernet/brocade/bna/bfa_cs.h
@@ -0,0 +1,125 @@
+/*
+ * Linux network driver for QLogic BR-series 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) 2005-2014 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);
+
+/* 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;
+}
+
+/* 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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