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17#ifndef _BRCMU_UTILS_H_
18#define _BRCMU_UTILS_H_
19
20#include <linux/skbuff.h>
21
22
23
24
25
26
27#define SPINWAIT(exp, us) { \
28 uint countdown = (us) + 9; \
29 while ((exp) && (countdown >= 10)) {\
30 udelay(10); \
31 countdown -= 10; \
32 } \
33}
34
35
36#define PKTQ_LEN_DEFAULT 128
37#define PKTQ_MAX_PREC 16
38
39#define BCME_STRLEN 64
40
41
42#define PKTBUFSZ 2048
43
44#ifndef setbit
45#ifndef NBBY
46#define NBBY 8
47#endif
48#define setbit(a, i) (((u8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY))
49#define clrbit(a, i) (((u8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
50#define isset(a, i) (((const u8 *)a)[(i)/NBBY] & (1<<((i)%NBBY)))
51#define isclr(a, i) ((((const u8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
52#endif
53
54#define NBITS(type) (sizeof(type) * 8)
55#define NBITVAL(nbits) (1 << (nbits))
56#define MAXBITVAL(nbits) ((1 << (nbits)) - 1)
57#define NBITMASK(nbits) MAXBITVAL(nbits)
58#define MAXNBVAL(nbyte) MAXBITVAL((nbyte) * 8)
59
60
61#define CRC16_INIT_VALUE 0xffff
62#define CRC16_GOOD_VALUE 0xf0b8
63
64
65#define ETHER_ADDR_STR_LEN 18
66
67struct pktq_prec {
68 struct sk_buff_head skblist;
69 u16 max;
70};
71
72
73struct pktq {
74 u16 num_prec;
75 u16 hi_prec;
76 u16 max;
77 u16 len;
78
79
80
81
82 struct pktq_prec q[PKTQ_MAX_PREC];
83};
84
85
86
87static inline int pktq_plen(struct pktq *pq, int prec)
88{
89 return pq->q[prec].skblist.qlen;
90}
91
92static inline int pktq_pavail(struct pktq *pq, int prec)
93{
94 return pq->q[prec].max - pq->q[prec].skblist.qlen;
95}
96
97static inline bool pktq_pfull(struct pktq *pq, int prec)
98{
99 return pq->q[prec].skblist.qlen >= pq->q[prec].max;
100}
101
102static inline bool pktq_pempty(struct pktq *pq, int prec)
103{
104 return skb_queue_empty(&pq->q[prec].skblist);
105}
106
107static inline struct sk_buff *pktq_ppeek(struct pktq *pq, int prec)
108{
109 return skb_peek(&pq->q[prec].skblist);
110}
111
112static inline struct sk_buff *pktq_ppeek_tail(struct pktq *pq, int prec)
113{
114 return skb_peek_tail(&pq->q[prec].skblist);
115}
116
117struct sk_buff *brcmu_pktq_penq(struct pktq *pq, int prec, struct sk_buff *p);
118struct sk_buff *brcmu_pktq_penq_head(struct pktq *pq, int prec,
119 struct sk_buff *p);
120struct sk_buff *brcmu_pktq_pdeq(struct pktq *pq, int prec);
121struct sk_buff *brcmu_pktq_pdeq_tail(struct pktq *pq, int prec);
122struct sk_buff *brcmu_pktq_pdeq_match(struct pktq *pq, int prec,
123 bool (*match_fn)(struct sk_buff *p,
124 void *arg),
125 void *arg);
126
127
128struct sk_buff *brcmu_pkt_buf_get_skb(uint len);
129void brcmu_pkt_buf_free_skb(struct sk_buff *skb);
130
131
132
133void brcmu_pktq_pflush(struct pktq *pq, int prec, bool dir,
134 bool (*fn)(struct sk_buff *, void *), void *arg);
135
136
137
138int brcmu_pktq_mlen(struct pktq *pq, uint prec_bmp);
139struct sk_buff *brcmu_pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
140
141
142
143static inline int pktq_len(struct pktq *pq)
144{
145 return (int)pq->len;
146}
147
148static inline int pktq_max(struct pktq *pq)
149{
150 return (int)pq->max;
151}
152
153static inline int pktq_avail(struct pktq *pq)
154{
155 return (int)(pq->max - pq->len);
156}
157
158static inline bool pktq_full(struct pktq *pq)
159{
160 return pq->len >= pq->max;
161}
162
163static inline bool pktq_empty(struct pktq *pq)
164{
165 return pq->len == 0;
166}
167
168void brcmu_pktq_init(struct pktq *pq, int num_prec, int max_len);
169
170struct sk_buff *brcmu_pktq_peek_tail(struct pktq *pq, int *prec_out);
171void brcmu_pktq_flush(struct pktq *pq, bool dir,
172 bool (*fn)(struct sk_buff *, void *), void *arg);
173
174
175
176struct ipv4_addr;
177
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180
181
182
183static inline void brcmu_maskset32(u32 *var, u32 mask, u8 shift, u32 value)
184{
185 value = (value << shift) & mask;
186 *var = (*var & ~mask) | value;
187}
188static inline u32 brcmu_maskget32(u32 var, u32 mask, u8 shift)
189{
190 return (var & mask) >> shift;
191}
192static inline void brcmu_maskset16(u16 *var, u16 mask, u8 shift, u16 value)
193{
194 value = (value << shift) & mask;
195 *var = (*var & ~mask) | value;
196}
197static inline u16 brcmu_maskget16(u16 var, u16 mask, u8 shift)
198{
199 return (var & mask) >> shift;
200}
201
202
203
204#ifdef DEBUG
205void brcmu_prpkt(const char *msg, struct sk_buff *p0);
206#else
207#define brcmu_prpkt(a, b)
208#endif
209
210#ifdef DEBUG
211__printf(3, 4)
212void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...);
213#else
214__printf(3, 4)
215static inline
216void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...)
217{
218}
219#endif
220
221#define BRCMU_BOARDREV_LEN 8
222#define BRCMU_DOTREV_LEN 16
223
224char *brcmu_boardrev_str(u32 brev, char *buf);
225char *brcmu_dotrev_str(u32 dotrev, char *buf);
226
227#endif
228