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 #include <linux/refcount.h>
14 
15 struct clip_entry {
16 	spinlock_t lock;	/* Hold while modifying clip reference */
17 	refcount_t refcnt;
18 	struct list_head list;
19 	union {
20 		struct sockaddr_in addr;
21 		struct sockaddr_in6 addr6;
22 	};
23 };
24 
25 struct clip_tbl {
26 	unsigned int clipt_start;
27 	unsigned int clipt_size;
28 	rwlock_t lock;
29 	atomic_t nfree;
30 	struct list_head ce_free_head;
31 	void *cl_list;
32 	struct list_head hash_list[0];
33 };
34 
35 enum {
36 	CLIPT_MIN_HASH_BUCKETS = 2,
37 };
38 
39 struct clip_tbl *t4_init_clip_tbl(unsigned int clipt_start,
40 				  unsigned int clipt_end);
41 int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6);
42 void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6);
43 int clip_tbl_show(struct seq_file *seq, void *v);
44 int cxgb4_update_root_dev_clip(struct net_device *dev);
45 void t4_cleanup_clip_tbl(struct adapter *adap);
46