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86 lines
3.8 KiB
86 lines
3.8 KiB
/* |
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* This file is provided under a dual BSD/GPLv2 license. When using or |
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* redistributing this file, you may do so under either license. |
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* |
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* GPL LICENSE SUMMARY |
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* |
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* Copyright(c) 2012 Intel Corporation. All rights reserved. |
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* Copyright (C) 2015 EMC Corporation. All Rights Reserved. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of version 2 of the GNU General Public License as |
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* published by the Free Software Foundation. |
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* |
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* BSD LICENSE |
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* |
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* Copyright(c) 2012 Intel Corporation. All rights reserved. |
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* Copyright (C) 2015 EMC Corporation. All Rights Reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above copy |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Intel Corporation nor the names of its |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* PCIe NTB Transport Linux driver |
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* |
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* Contact Information: |
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* Jon Mason <[email protected]> |
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*/ |
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struct ntb_transport_qp; |
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struct ntb_transport_client { |
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struct device_driver driver; |
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int (*probe)(struct device *client_dev); |
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void (*remove)(struct device *client_dev); |
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}; |
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int ntb_transport_register_client(struct ntb_transport_client *drvr); |
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void ntb_transport_unregister_client(struct ntb_transport_client *drvr); |
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int ntb_transport_register_client_dev(char *device_name); |
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void ntb_transport_unregister_client_dev(char *device_name); |
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struct ntb_queue_handlers { |
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void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data, |
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void *data, int len); |
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void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data, |
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void *data, int len); |
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void (*event_handler)(void *data, int status); |
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}; |
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unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp); |
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unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp); |
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struct ntb_transport_qp * |
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ntb_transport_create_queue(void *data, struct device *client_dev, |
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const struct ntb_queue_handlers *handlers); |
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void ntb_transport_free_queue(struct ntb_transport_qp *qp); |
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int ntb_transport_rx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data, |
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unsigned int len); |
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int ntb_transport_tx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data, |
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unsigned int len); |
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void *ntb_transport_rx_remove(struct ntb_transport_qp *qp, unsigned int *len); |
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void ntb_transport_link_up(struct ntb_transport_qp *qp); |
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void ntb_transport_link_down(struct ntb_transport_qp *qp); |
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bool ntb_transport_link_query(struct ntb_transport_qp *qp); |
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unsigned int ntb_transport_tx_free_entry(struct ntb_transport_qp *qp);
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