Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / ethernet / brocade / bna / bfa_cs.h

diff --git a/kernel/drivers/net/ethernet/brocade/bna/bfa_cs.h b/kernel/drivers/net/ethernet/brocade/bna/bfa_cs.h
new file mode 100644 (file)
index 0000000..af25d8e
--- /dev/null
+++ b/kernel/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__ */