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 	union {
18 		struct sockaddr_in addr;
19 		struct sockaddr_in6 addr6;
20 	};
21 };
22 
23 struct clip_tbl {
24 	unsigned int clipt_start;
25 	unsigned int clipt_size;
26 	rwlock_t lock;
27 	atomic_t nfree;
28 	struct list_head ce_free_head;
29 	void *cl_list;
30 	struct list_head hash_list[0];
31 };
32 
33 enum {
34 	CLIPT_MIN_HASH_BUCKETS = 2,
35 };
36 
37 struct clip_tbl *t4_init_clip_tbl(unsigned int clipt_start,
38 				  unsigned int clipt_end);
39 int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6);
40 void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6);
41 int clip_tbl_show(struct seq_file *seq, void *v);
42 int cxgb4_update_root_dev_clip(struct net_device *dev);
43 void t4_cleanup_clip_tbl(struct adapter *adap);
44