167 lines
4.7 KiB
C
167 lines
4.7 KiB
C
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/*
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* Copyright 2007-2010 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
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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 the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Compatibility file for Linux wireless for kernels 2.6.29.
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*/
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#include <linux/compat.h>
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#include <linux/usb.h>
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#include <linux/etherdevice.h>
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/*
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* If you don't see your net_device_ops implemented on
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* netdev_attach_ops() then you are shit out of luck and
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* you must do the nasty ifdef magic, unless you figure
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* out a way to squeze your hacks into this routine :)
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*/
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void netdev_attach_ops(struct net_device *dev,
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const struct net_device_ops *ops)
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{
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dev->open = ops->ndo_open;
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dev->init = ops->ndo_init;
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dev->stop = ops->ndo_stop;
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dev->hard_start_xmit = ops->ndo_start_xmit;
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dev->change_rx_flags = ops->ndo_change_rx_flags;
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dev->set_multicast_list = ops->ndo_set_multicast_list;
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dev->validate_addr = ops->ndo_validate_addr;
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dev->do_ioctl = ops->ndo_do_ioctl;
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dev->set_config = ops->ndo_set_config;
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dev->change_mtu = ops->ndo_change_mtu;
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dev->set_mac_address = ops->ndo_set_mac_address;
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dev->tx_timeout = ops->ndo_tx_timeout;
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if (ops->ndo_get_stats)
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dev->get_stats = ops->ndo_get_stats;
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dev->vlan_rx_register = ops->ndo_vlan_rx_register;
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dev->vlan_rx_add_vid = ops->ndo_vlan_rx_add_vid;
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dev->vlan_rx_kill_vid = ops->ndo_vlan_rx_kill_vid;
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#ifdef CONFIG_NET_POLL_CONTROLLER
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dev->poll_controller = ops->ndo_poll_controller;
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#endif
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27))
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dev->select_queue = ops->ndo_select_queue;
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#endif
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}
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EXPORT_SYMBOL_GPL(netdev_attach_ops);
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23))
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#if defined(CONFIG_USB) || defined(CONFIG_USB_MODULE)
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/**
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* usb_unpoison_anchored_urbs - let an anchor be used successfully again
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* @anchor: anchor the requests are bound to
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*
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* Reverses the effect of usb_poison_anchored_urbs
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* the anchor can be used normally after it returns
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*/
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void usb_unpoison_anchored_urbs(struct usb_anchor *anchor)
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{
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unsigned long flags;
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struct urb *lazarus;
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spin_lock_irqsave(&anchor->lock, flags);
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list_for_each_entry(lazarus, &anchor->urb_list, anchor_list) {
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usb_unpoison_urb(lazarus);
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}
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//anchor->poisoned = 0; /* XXX: cannot backport */
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spin_unlock_irqrestore(&anchor->lock, flags);
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}
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EXPORT_SYMBOL_GPL(usb_unpoison_anchored_urbs);
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#endif /* CONFIG_USB */
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#endif
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/**
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* eth_mac_addr - set new Ethernet hardware address
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* @dev: network device
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* @p: socket address
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* Change hardware address of device.
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*
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* This doesn't change hardware matching, so needs to be overridden
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* for most real devices.
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*/
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int eth_mac_addr(struct net_device *dev, void *p)
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{
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struct sockaddr *addr = p;
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if (netif_running(dev))
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return -EBUSY;
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if (!is_valid_ether_addr(addr->sa_data))
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return -EADDRNOTAVAIL;
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memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
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return 0;
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}
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EXPORT_SYMBOL_GPL(eth_mac_addr);
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/**
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* eth_change_mtu - set new MTU size
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* @dev: network device
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* @new_mtu: new Maximum Transfer Unit
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*
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* Allow changing MTU size. Needs to be overridden for devices
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* supporting jumbo frames.
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*/
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int eth_change_mtu(struct net_device *dev, int new_mtu)
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{
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if (new_mtu < 68 || new_mtu > ETH_DATA_LEN)
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return -EINVAL;
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dev->mtu = new_mtu;
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return 0;
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}
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EXPORT_SYMBOL_GPL(eth_change_mtu);
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int eth_validate_addr(struct net_device *dev)
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{
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if (!is_valid_ether_addr(dev->dev_addr))
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return -EADDRNOTAVAIL;
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return 0;
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}
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EXPORT_SYMBOL_GPL(eth_validate_addr);
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/* Source: net/ethernet/eth.c */
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#define NETREG_DUMMY 5
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/**
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* init_dummy_netdev - init a dummy network device for NAPI
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* @dev: device to init
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*
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* This takes a network device structure and initialize the minimum
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* amount of fields so it can be used to schedule NAPI polls without
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* registering a full blown interface. This is to be used by drivers
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* that need to tie several hardware interfaces to a single NAPI
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* poll scheduler due to HW limitations.
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*/
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int init_dummy_netdev(struct net_device *dev)
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{
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/* Clear everything. Note we don't initialize spinlocks
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* are they aren't supposed to be taken by any of the
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* NAPI code and this dummy netdev is supposed to be
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* only ever used for NAPI polls
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*/
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memset(dev, 0, sizeof(struct net_device));
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/* make sure we BUG if trying to hit standard
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* register/unregister code path
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*/
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dev->reg_state = NETREG_DUMMY;
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/* initialize the ref count */
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atomic_set(&dev->refcnt, 1);
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#ifdef CONFIG_NETPOLL
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/* NAPI wants this */
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INIT_LIST_HEAD(&dev->napi_list);
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#endif
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/* a dummy interface is started by default */
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set_bit(__LINK_STATE_PRESENT, &dev->state);
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set_bit(__LINK_STATE_START, &dev->state);
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return 0;
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}
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EXPORT_SYMBOL_GPL(init_dummy_netdev);
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/* Source: net/core/dev.c */
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