diff options
Diffstat (limited to 'sys/dev/ntb/ntb_hw/ntb_hw.h')
| -rw-r--r-- | sys/dev/ntb/ntb_hw/ntb_hw.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sys/dev/ntb/ntb_hw/ntb_hw.h b/sys/dev/ntb/ntb_hw/ntb_hw.h new file mode 100644 index 0000000..4f44031 --- /dev/null +++ b/sys/dev/ntb/ntb_hw/ntb_hw.h @@ -0,0 +1,73 @@ +/*- + * Copyright (C) 2013 Intel Corporation + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _NTB_HW_H_ +#define _NTB_HW_H_ + +struct ntb_softc; + +#define NTB_NUM_MW 2 +#define NTB_LINK_DOWN 0 +#define NTB_LINK_UP 1 + +enum ntb_hw_event { + NTB_EVENT_SW_EVENT0 = 0, + NTB_EVENT_SW_EVENT1, + NTB_EVENT_SW_EVENT2, + NTB_EVENT_HW_ERROR, + NTB_EVENT_HW_LINK_UP, + NTB_EVENT_HW_LINK_DOWN, +}; + +typedef void (*ntb_db_callback)(void *data, int db_num); +typedef void (*ntb_event_callback)(void *data, enum ntb_hw_event event); + +int ntb_register_event_callback(struct ntb_softc *ntb, ntb_event_callback func); +void ntb_unregister_event_callback(struct ntb_softc *ntb); +int ntb_register_db_callback(struct ntb_softc *ntb, unsigned int idx, + void *data, ntb_db_callback func); +void ntb_unregister_db_callback(struct ntb_softc *ntb, unsigned int idx); +void *ntb_find_transport(struct ntb_softc *ntb); +struct ntb_softc *ntb_register_transport(struct ntb_softc *ntb, + void *transport); +void ntb_unregister_transport(struct ntb_softc *ntb); +int ntb_get_max_spads(struct ntb_softc *ntb); +int ntb_write_local_spad(struct ntb_softc *ntb, unsigned int idx, uint32_t val); +int ntb_read_local_spad(struct ntb_softc *ntb, unsigned int idx, uint32_t *val); +int ntb_write_remote_spad(struct ntb_softc *ntb, unsigned int idx, + uint32_t val); +int ntb_read_remote_spad(struct ntb_softc *ntb, unsigned int idx, + uint32_t *val); +void *ntb_get_mw_vbase(struct ntb_softc *ntb, unsigned int mw); +vm_paddr_t ntb_get_mw_pbase(struct ntb_softc *ntb, unsigned int mw); +u_long ntb_get_mw_size(struct ntb_softc *ntb, unsigned int mw); +void ntb_set_mw_addr(struct ntb_softc *ntb, unsigned int mw, uint64_t addr); +void ntb_ring_sdb(struct ntb_softc *ntb, unsigned int db); +bool ntb_query_link_status(struct ntb_softc *ntb); + +#endif /* _NTB_HW_H_ */ |
