Revision 6f335a7afa6bc57603f39430dc6f9e57de288a91 authored by Ben Skeggs on 29 March 2010, 00:06:09 UTC, committed by Ben Skeggs on 09 April 2010, 00:15:38 UTC
This value interacts with some registers we don't currently know how to program properly ourselves. The default of 5 that we were using matches what the VBIOS on early DP cards do, but later ones use 6, which would cause nouveau to program an incorrect mode on these chips. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
1 parent d327dd4
p8022.c
/*
* NET3: Support for 802.2 demultiplexing off Ethernet (Token ring
* is kept separate see p8022tr.c)
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Demultiplex 802.2 encoded protocols. We match the entry by the
* SSAP/DSAP pair and then deliver to the registered datalink that
* matches. The control byte is ignored and handling of such items
* is up to the routine passed the frame.
*
* Unlike the 802.3 datalink we have a list of 802.2 entries as
* there are multiple protocols to demux. The list is currently
* short (3 or 4 entries at most). The current demux assumes this.
*/
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <net/datalink.h>
#include <linux/mm.h>
#include <linux/in.h>
#include <linux/init.h>
#include <net/llc.h>
#include <net/p8022.h>
static int p8022_request(struct datalink_proto *dl, struct sk_buff *skb,
unsigned char *dest)
{
llc_build_and_send_ui_pkt(dl->sap, skb, dest, dl->sap->laddr.lsap);
return 0;
}
struct datalink_proto *register_8022_client(unsigned char type,
int (*func)(struct sk_buff *skb,
struct net_device *dev,
struct packet_type *pt,
struct net_device *orig_dev))
{
struct datalink_proto *proto;
proto = kmalloc(sizeof(*proto), GFP_ATOMIC);
if (proto) {
proto->type[0] = type;
proto->header_length = 3;
proto->request = p8022_request;
proto->sap = llc_sap_open(type, func);
if (!proto->sap) {
kfree(proto);
proto = NULL;
}
}
return proto;
}
void unregister_8022_client(struct datalink_proto *proto)
{
llc_sap_put(proto->sap);
kfree(proto);
}
EXPORT_SYMBOL(register_8022_client);
EXPORT_SYMBOL(unregister_8022_client);
MODULE_LICENSE("GPL");
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