89 строки
3.6 KiB
C
89 строки
3.6 KiB
C
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/*
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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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*
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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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*
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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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* Intel PCIe NTB Linux driver
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*
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* Contact Information:
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* Jon Mason <jon.mason@intel.com>
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*/
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struct ntb_transport_qp;
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struct ntb_client {
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struct device_driver driver;
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int (*probe)(struct pci_dev *pdev);
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void (*remove)(struct pci_dev *pdev);
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};
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enum {
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NTB_LINK_DOWN = 0,
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NTB_LINK_UP,
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};
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int ntb_transport_register_client(struct ntb_client *drvr);
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void ntb_transport_unregister_client(struct ntb_client *drvr);
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int ntb_register_client_dev(char *device_name);
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void ntb_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 pci_dev *pdev,
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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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