/***
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*
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* include/rtmac/rtmac_disc.h
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*
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* rtmac - real-time networking media access control subsystem
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* Copyright (C) 2002 Marc Kleine-Budde <kleine-budde@gmx.de>,
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* 2003, 2004 Jan Kiszka <Jan.Kiszka@web.de>
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef __RTMAC_DISC_H_
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#define __RTMAC_DISC_H_
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#include <linux/list.h>
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#include <linux/netdevice.h>
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#include <rtdev.h>
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#include <rtnet_chrdev.h>
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#define RTMAC_NO_VNIC NULL
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#define RTMAC_DEFAULT_VNIC rtmac_vnic_xmit
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typedef int (*vnic_xmit_handler)(struct sk_buff *skb, struct net_device *dev);
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struct rtmac_priv {
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int (*orig_start_xmit)(struct rtskb *skb, struct rtnet_device *dev);
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struct net_device *vnic;
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struct net_device_stats vnic_stats;
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struct rtskb_pool vnic_skb_pool;
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unsigned int vnic_max_mtu;
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u8 disc_priv[0] __attribute__((aligned(16)));
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};
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struct rtmac_proc_entry {
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const char *name;
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int (*handler)(struct xnvfile_regular_iterator *it, void *data);
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struct xnvfile_regular vfile;
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};
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struct rtmac_disc {
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struct list_head list;
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const char *name;
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unsigned int priv_size; /* size of rtmac_priv.disc_priv */
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u16 disc_type;
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int (*packet_rx)(struct rtskb *skb);
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/* rt_packet_tx prototype must be compatible with hard_start_xmit */
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int (*rt_packet_tx)(struct rtskb *skb, struct rtnet_device *dev);
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int (*nrt_packet_tx)(struct rtskb *skb);
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unsigned int (*get_mtu)(struct rtnet_device *rtdev,
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unsigned int priority);
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vnic_xmit_handler vnic_xmit;
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int (*attach)(struct rtnet_device *rtdev, void *disc_priv);
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int (*detach)(struct rtnet_device *rtdev, void *disc_priv);
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struct rtnet_ioctls ioctls;
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struct rtmac_proc_entry *proc_entries;
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unsigned nr_proc_entries;
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struct module *owner;
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};
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int rtmac_disc_attach(struct rtnet_device *rtdev, struct rtmac_disc *disc);
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int rtmac_disc_detach(struct rtnet_device *rtdev);
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int __rtmac_disc_register(struct rtmac_disc *disc, struct module *module);
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#define rtmac_disc_register(disc) __rtmac_disc_register(disc, THIS_MODULE)
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void rtmac_disc_deregister(struct rtmac_disc *disc);
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#ifdef CONFIG_XENO_OPT_VFILE
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int rtnet_rtmac_disciplines_show(struct xnvfile_regular_iterator *it, void *d);
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#endif /* CONFIG_XENO_OPT_VFILE */
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#endif /* __RTMAC_DISC_H_ */
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