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static void ntb_netdev_rx_handler(struct ntb_transport_qp *qp, void *qp_data,/* * 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 Network Linux driver * * Contact Information: * Jon Mason <jon.mason@intel.com> */MODULE_DESCRIPTION(KBUILD_MODNAME);MODULE_VERSION(NTB_NETDEV_VER);MODULE_LICENSE("Dual BSD/GPL");MODULE_AUTHOR("Intel Corporation");/* Time in usecs for tx resource reaper */static unsigned int tx_time = 1;/* Number of descriptors to free before resuming tx */static unsigned int tx_start = 10;/* Number of descriptors still available before stop upper layer tx */static unsigned int tx_stop = 5;struct ntb_netdev { struct pci_dev *pdev; struct net_device *ndev; struct ntb_transport_qp *qp; struct timer_list tx_timer;};static void ntb_netdev_event_handler(void *data, int link_is_up){ struct net_device *ndev = data; struct ntb_netdev *dev = netdev_priv(ndev); netdev_dbg(ndev, "Event %x, Link %x\n", link_is_up, ntb_transport_link_query(dev->qp)); if (link_is_up) { if (ntb_transport_link_query(dev->qp))