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/* * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2012 Intel Corporation. All rights reserved. * Copyright (C) 2015 EMC Corporation. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * BSD LICENSE * * Copyright(c) 2012 Intel Corporation. All rights reserved. * Copyright (C) 2015 EMC 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: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copy * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT * OWNER 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. * * PCIe NTB Transport Linux driver * * Contact Information: * Jon Mason <jon.mason@intel.com> */ struct ntb_transport_qp; struct ntb_transport_client { struct device_driver driver; int (*probe)(struct device *client_dev); void (*remove)(struct device *client_dev); }; int ntb_transport_register_client(struct ntb_transport_client *drvr); void ntb_transport_unregister_client(struct ntb_transport_client *drvr); int ntb_transport_register_client_dev(char *device_name); void ntb_transport_unregister_client_dev(char *device_name); struct ntb_queue_handlers { void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data, void *data, int len); void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data, void *data, int len); void (*event_handler)(void *data, int status); }; unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp); unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp); struct ntb_transport_qp * ntb_transport_create_queue(void *data, struct device *client_dev, const struct ntb_queue_handlers *handlers); void ntb_transport_free_queue(struct ntb_transport_qp *qp); int ntb_transport_rx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data, unsigned int len); int ntb_transport_tx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data, unsigned int len); void *ntb_transport_rx_remove(struct ntb_transport_qp *qp, unsigned int *len); void ntb_transport_link_up(struct ntb_transport_qp *qp); void ntb_transport_link_down(struct ntb_transport_qp *qp); bool ntb_transport_link_query(struct ntb_transport_qp *qp); unsigned int ntb_transport_tx_free_entry(struct ntb_transport_qp *qp);
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