linux/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h
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   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
  15struct 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
  25struct 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[];
  33};
  34
  35enum {
  36        CLIPT_MIN_HASH_BUCKETS = 2,
  37};
  38
  39struct clip_tbl *t4_init_clip_tbl(unsigned int clipt_start,
  40                                  unsigned int clipt_end);
  41int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6);
  42void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6);
  43int clip_tbl_show(struct seq_file *seq, void *v);
  44int cxgb4_update_root_dev_clip(struct net_device *dev);
  45void t4_cleanup_clip_tbl(struct adapter *adap);
  46