LXR linux/drivers/net/wireless/broadcom/brcm80211/brcmfmac/flowring.h

   1/* Copyright (c) 2014 Broadcom Corporation
   2 *
   3 * Permission to use, copy, modify, and/or distribute this software for any
   4 * purpose with or without fee is hereby granted, provided that the above
   5 * copyright notice and this permission notice appear in all copies.
   6 *
   7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  14 */
  15#ifndef BRCMFMAC_FLOWRING_H
  16#define BRCMFMAC_FLOWRING_H
  17
  18
  19#define BRCMF_FLOWRING_HASHSIZE         512             /* has to be 2^x */
  20#define BRCMF_FLOWRING_INVALID_ID       0xFFFFFFFF
  21
  22
  23struct brcmf_flowring_hash {
  24        u8 mac[ETH_ALEN];
  25        u8 fifo;
  26        u8 ifidx;
  27        u16 flowid;
  28};
  29
  30enum ring_status {
  31        RING_CLOSED,
  32        RING_CLOSING,
  33        RING_OPEN
  34};
  35
  36struct brcmf_flowring_ring {
  37        u16 hash_id;
  38        bool blocked;
  39        enum ring_status status;
  40        struct sk_buff_head skblist;
  41};
  42
  43struct brcmf_flowring_tdls_entry {
  44        u8 mac[ETH_ALEN];
  45        struct brcmf_flowring_tdls_entry *next;
  46};
  47
  48struct brcmf_flowring {
  49        struct device *dev;
  50        struct brcmf_flowring_hash hash[BRCMF_FLOWRING_HASHSIZE];
  51        struct brcmf_flowring_ring **rings;
  52        spinlock_t block_lock;
  53        enum proto_addr_mode addr_mode[BRCMF_MAX_IFS];
  54        u16 nrofrings;
  55        bool tdls_active;
  56        struct brcmf_flowring_tdls_entry *tdls_entry;
  57};
  58
  59
  60u32 brcmf_flowring_lookup(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
  61                          u8 prio, u8 ifidx);
  62u32 brcmf_flowring_create(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
  63                          u8 prio, u8 ifidx);
  64void brcmf_flowring_delete(struct brcmf_flowring *flow, u16 flowid);
  65void brcmf_flowring_open(struct brcmf_flowring *flow, u16 flowid);
  66u8 brcmf_flowring_tid(struct brcmf_flowring *flow, u16 flowid);
  67u32 brcmf_flowring_enqueue(struct brcmf_flowring *flow, u16 flowid,
  68                           struct sk_buff *skb);
  69struct sk_buff *brcmf_flowring_dequeue(struct brcmf_flowring *flow, u16 flowid);
  70void brcmf_flowring_reinsert(struct brcmf_flowring *flow, u16 flowid,
  71                             struct sk_buff *skb);
  72u32 brcmf_flowring_qlen(struct brcmf_flowring *flow, u16 flowid);
  73u8 brcmf_flowring_ifidx_get(struct brcmf_flowring *flow, u16 flowid);
  74struct brcmf_flowring *brcmf_flowring_attach(struct device *dev, u16 nrofrings);
  75void brcmf_flowring_detach(struct brcmf_flowring *flow);
  76void brcmf_flowring_configure_addr_mode(struct brcmf_flowring *flow, int ifidx,
  77                                        enum proto_addr_mode addr_mode);
  78void brcmf_flowring_delete_peer(struct brcmf_flowring *flow, int ifidx,
  79                                u8 peer[ETH_ALEN]);
  80void brcmf_flowring_add_tdls_peer(struct brcmf_flowring *flow, int ifidx,
  81                                  u8 peer[ETH_ALEN]);
  82
  83
  84#endif /* BRCMFMAC_FLOWRING_H */
  85