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
  23 struct brcmf_flowring_hash {
  24         u8 mac[ETH_ALEN];
  25         u8 fifo;
  26         u8 ifidx;
  27         u16 flowid;
  28 };
  29
  30 enum ring_status {
  31         RING_CLOSED,
  32         RING_CLOSING,
  33         RING_OPEN
  34 };
  35
  36 struct brcmf_flowring_ring {
  37         u16 hash_id;
  38         bool blocked;
  39         enum ring_status status;
  40         struct sk_buff_head skblist;
  41 };
  42
  43 struct brcmf_flowring_tdls_entry {
  44         u8 mac[ETH_ALEN];
  45         struct brcmf_flowring_tdls_entry *next;
  46 };
  47
  48 struct 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
  60 u32 brcmf_flowring_lookup(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
  61                           u8 prio, u8 ifidx);
  62 u32 brcmf_flowring_create(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
  63                           u8 prio, u8 ifidx);
  64 void brcmf_flowring_delete(struct brcmf_flowring *flow, u16 flowid);
  65 void brcmf_flowring_open(struct brcmf_flowring *flow, u16 flowid);
  66 u8 brcmf_flowring_tid(struct brcmf_flowring *flow, u16 flowid);
  67 u32 brcmf_flowring_enqueue(struct brcmf_flowring *flow, u16 flowid,
  68                            struct sk_buff *skb);
  69 struct sk_buff *brcmf_flowring_dequeue(struct brcmf_flowring *flow, u16 flowid);
  70 void brcmf_flowring_reinsert(struct brcmf_flowring *flow, u16 flowid,
  71                              struct sk_buff *skb);
  72 u32 brcmf_flowring_qlen(struct brcmf_flowring *flow, u16 flowid);
  73 u8 brcmf_flowring_ifidx_get(struct brcmf_flowring *flow, u16 flowid);
  74 struct brcmf_flowring *brcmf_flowring_attach(struct device *dev, u16 nrofrings);
  75 void brcmf_flowring_detach(struct brcmf_flowring *flow);
  76 void brcmf_flowring_configure_addr_mode(struct brcmf_flowring *flow, int ifidx,
  77                                         enum proto_addr_mode addr_mode);
  78 void brcmf_flowring_delete_peer(struct brcmf_flowring *flow, int ifidx,
  79                                 u8 peer[ETH_ALEN]);
  80 void brcmf_flowring_add_tdls_peer(struct brcmf_flowring *flow, int ifidx,
  81                                   u8 peer[ETH_ALEN]);
  82
  83
  84 #endif /* BRCMFMAC_FLOWRING_H */