1 // SPDX-License-Identifier: ISC
2 /*
3  * Copyright (c) 2014 Broadcom Corporation
4  */
5 #ifndef BRCMFMAC_FLOWRING_H
6 #define BRCMFMAC_FLOWRING_H
7 
8 
9 #define BRCMF_FLOWRING_HASHSIZE		512		/* has to be 2^x */
10 #define BRCMF_FLOWRING_INVALID_ID	0xFFFFFFFF
11 
12 
13 struct brcmf_flowring_hash {
14 	u8 mac[ETH_ALEN];
15 	u8 fifo;
16 	u8 ifidx;
17 	u16 flowid;
18 };
19 
20 enum ring_status {
21 	RING_CLOSED,
22 	RING_CLOSING,
23 	RING_OPEN
24 };
25 
26 struct brcmf_flowring_ring {
27 	u16 hash_id;
28 	bool blocked;
29 	enum ring_status status;
30 	struct sk_buff_head skblist;
31 };
32 
33 struct brcmf_flowring_tdls_entry {
34 	u8 mac[ETH_ALEN];
35 	struct brcmf_flowring_tdls_entry *next;
36 };
37 
38 struct brcmf_flowring {
39 	struct device *dev;
40 	struct brcmf_flowring_hash hash[BRCMF_FLOWRING_HASHSIZE];
41 	struct brcmf_flowring_ring **rings;
42 	spinlock_t block_lock;
43 	enum proto_addr_mode addr_mode[BRCMF_MAX_IFS];
44 	u16 nrofrings;
45 	bool tdls_active;
46 	struct brcmf_flowring_tdls_entry *tdls_entry;
47 };
48 
49 
50 u32 brcmf_flowring_lookup(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
51 			  u8 prio, u8 ifidx);
52 u32 brcmf_flowring_create(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
53 			  u8 prio, u8 ifidx);
54 void brcmf_flowring_delete(struct brcmf_flowring *flow, u16 flowid);
55 void brcmf_flowring_open(struct brcmf_flowring *flow, u16 flowid);
56 u8 brcmf_flowring_tid(struct brcmf_flowring *flow, u16 flowid);
57 u32 brcmf_flowring_enqueue(struct brcmf_flowring *flow, u16 flowid,
58 			   struct sk_buff *skb);
59 struct sk_buff *brcmf_flowring_dequeue(struct brcmf_flowring *flow, u16 flowid);
60 void brcmf_flowring_reinsert(struct brcmf_flowring *flow, u16 flowid,
61 			     struct sk_buff *skb);
62 u32 brcmf_flowring_qlen(struct brcmf_flowring *flow, u16 flowid);
63 u8 brcmf_flowring_ifidx_get(struct brcmf_flowring *flow, u16 flowid);
64 struct brcmf_flowring *brcmf_flowring_attach(struct device *dev, u16 nrofrings);
65 void brcmf_flowring_detach(struct brcmf_flowring *flow);
66 void brcmf_flowring_configure_addr_mode(struct brcmf_flowring *flow, int ifidx,
67 					enum proto_addr_mode addr_mode);
68 void brcmf_flowring_delete_peer(struct brcmf_flowring *flow, int ifidx,
69 				u8 peer[ETH_ALEN]);
70 void brcmf_flowring_add_tdls_peer(struct brcmf_flowring *flow, int ifidx,
71 				  u8 peer[ETH_ALEN]);
72 
73 
74 #endif /* BRCMFMAC_FLOWRING_H */
75