mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 17:54:13 +08:00
31b9c19bfe
Make functions only used in one file local. Remove lots of dead code, relating to unsupported functions in mainline driver like RSS, IPv6, and TCP offload. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
108 lines
4.0 KiB
C
108 lines
4.0 KiB
C
/*
|
|
* This file is part of the Chelsio T4 Ethernet driver for Linux.
|
|
*
|
|
* Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* 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
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#ifndef __CXGB4_L2T_H
|
|
#define __CXGB4_L2T_H
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/if_ether.h>
|
|
#include <asm/atomic.h>
|
|
|
|
struct adapter;
|
|
struct l2t_data;
|
|
struct neighbour;
|
|
struct net_device;
|
|
struct file_operations;
|
|
struct cpl_l2t_write_rpl;
|
|
|
|
/*
|
|
* Each L2T entry plays multiple roles. First of all, it keeps state for the
|
|
* corresponding entry of the HW L2 table and maintains a queue of offload
|
|
* packets awaiting address resolution. Second, it is a node of a hash table
|
|
* chain, where the nodes of the chain are linked together through their next
|
|
* pointer. Finally, each node is a bucket of a hash table, pointing to the
|
|
* first element in its chain through its first pointer.
|
|
*/
|
|
struct l2t_entry {
|
|
u16 state; /* entry state */
|
|
u16 idx; /* entry index */
|
|
u32 addr[4]; /* next hop IP or IPv6 address */
|
|
int ifindex; /* neighbor's net_device's ifindex */
|
|
struct neighbour *neigh; /* associated neighbour */
|
|
struct l2t_entry *first; /* start of hash chain */
|
|
struct l2t_entry *next; /* next l2t_entry on chain */
|
|
struct sk_buff *arpq_head; /* queue of packets awaiting resolution */
|
|
struct sk_buff *arpq_tail;
|
|
spinlock_t lock;
|
|
atomic_t refcnt; /* entry reference count */
|
|
u16 hash; /* hash bucket the entry is on */
|
|
u16 vlan; /* VLAN TCI (id: bits 0-11, prio: 13-15 */
|
|
u8 v6; /* whether entry is for IPv6 */
|
|
u8 lport; /* associated offload logical interface */
|
|
u8 dmac[ETH_ALEN]; /* neighbour's MAC address */
|
|
};
|
|
|
|
typedef void (*arp_err_handler_t)(void *handle, struct sk_buff *skb);
|
|
|
|
/*
|
|
* Callback stored in an skb to handle address resolution failure.
|
|
*/
|
|
struct l2t_skb_cb {
|
|
void *handle;
|
|
arp_err_handler_t arp_err_handler;
|
|
};
|
|
|
|
#define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb)
|
|
|
|
static inline void t4_set_arp_err_handler(struct sk_buff *skb, void *handle,
|
|
arp_err_handler_t handler)
|
|
{
|
|
L2T_SKB_CB(skb)->handle = handle;
|
|
L2T_SKB_CB(skb)->arp_err_handler = handler;
|
|
}
|
|
|
|
void cxgb4_l2t_release(struct l2t_entry *e);
|
|
int cxgb4_l2t_send(struct net_device *dev, struct sk_buff *skb,
|
|
struct l2t_entry *e);
|
|
struct l2t_entry *cxgb4_l2t_get(struct l2t_data *d, struct neighbour *neigh,
|
|
const struct net_device *physdev,
|
|
unsigned int priority);
|
|
|
|
void t4_l2t_update(struct adapter *adap, struct neighbour *neigh);
|
|
struct l2t_data *t4_init_l2t(void);
|
|
void do_l2t_write_rpl(struct adapter *p, const struct cpl_l2t_write_rpl *rpl);
|
|
|
|
extern const struct file_operations t4_l2t_fops;
|
|
#endif /* __CXGB4_L2T_H */
|