Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ntb/ntb_transport.h
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
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1 /*- 2 * Copyright (c) 2016 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 struct ntb_transport_qp; 30 31 enum ntb_link_event { 32 NTB_LINK_DOWN = 0, 33 NTB_LINK_UP, 34 }; 35 36 struct ntb_queue_handlers { 37 void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data, 38 void *data, int len); 39 void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data, 40 void *data, int len); 41 void (*event_handler)(void *data, enum ntb_link_event status); 42 }; 43 44 int ntb_transport_queue_count(device_t dev); 45 struct ntb_transport_qp * 46 ntb_transport_create_queue(device_t dev, int q, 47 const struct ntb_queue_handlers *handlers, void *data); 48 void ntb_transport_free_queue(struct ntb_transport_qp *qp); 49 unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp); 50 unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp); 51 int ntb_transport_rx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data, 52 unsigned int len); 53 int ntb_transport_tx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data, 54 unsigned int len); 55 void *ntb_transport_rx_remove(struct ntb_transport_qp *qp, unsigned int *len); 56 void ntb_transport_link_up(struct ntb_transport_qp *qp); 57 void ntb_transport_link_down(struct ntb_transport_qp *qp); 58 bool ntb_transport_link_query(struct ntb_transport_qp *qp); 59 uint64_t ntb_transport_link_speed(struct ntb_transport_qp *qp); 60 unsigned int ntb_transport_tx_free_entry(struct ntb_transport_qp *qp);
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