1 /*
2  *  This file is part of the Chelsio T4 Ethernet driver for Linux.
3  *  Copyright (C) 2003-2014 Chelsio Communications.  All rights reserved.
4  *
5  *  Written by Deepak (deepak.s@chelsio.com)
6  *
7  *  This program is distributed in the hope that it will be useful, but WITHOUT
8  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
9  *  FITNESS FOR A PARTICULAR PURPOSE.  See the LICENSE file included in this
10  *  release for licensing terms and conditions.
11  */
12 
13 struct clip_entry {
14 	spinlock_t lock;	/* Hold while modifying clip reference */
15 	atomic_t refcnt;
16 	struct list_head list;
17 	u32 addr[4];
18 	int addr_len;
19 };
20 
21 struct clip_tbl {
22 	unsigned int clipt_start;
23 	unsigned int clipt_size;
24 	rwlock_t lock;
25 	atomic_t nfree;
26 	struct list_head ce_free_head;
27 	void *cl_list;
28 	struct list_head hash_list[0];
29 };
30 
31 enum {
32 	CLIPT_MIN_HASH_BUCKETS = 2,
33 };
34 
35 struct clip_tbl *t4_init_clip_tbl(unsigned int clipt_start,
36 				  unsigned int clipt_end);
37 int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6);
38 void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6);
39 int clip_tbl_show(struct seq_file *seq, void *v);
40 int cxgb4_update_root_dev_clip(struct net_device *dev);
41 void t4_cleanup_clip_tbl(struct adapter *adap);
42