// SPDX-License-Identifier: ISC /* * Copyright (c) 2010 Broadcom Corporation */ #ifndef _BRCMU_UTILS_H_ #define _BRCMU_UTILS_H_ #include <linux/skbuff.h> /* * Spin at most 'us' microseconds while 'exp' is true. * Caller should explicitly test 'exp' when this completes * and take appropriate error action if 'exp' is still true. */ #define SPINWAIT(exp, us) … /* osl multi-precedence packet queue */ #define PKTQ_LEN_DEFAULT … #define PKTQ_MAX_PREC … #define BCME_STRLEN … /* the largest reasonable packet buffer driver uses for ethernet MTU in bytes */ #define PKTBUFSZ … #ifndef setbit #ifndef NBBY /* the BSD family defines NBBY */ #define NBBY … #endif /* #ifndef NBBY */ #define setbit(a, i) … #define clrbit(a, i) … #define isset(a, i) … #define isclr(a, i) … #endif /* setbit */ #define NBITS(type) … #define NBITVAL(nbits) … #define MAXBITVAL(nbits) … #define NBITMASK(nbits) … #define MAXNBVAL(nbyte) … /* crc defines */ #define CRC16_INIT_VALUE … #define CRC16_GOOD_VALUE … /* 18-bytes of Ethernet address buffer length */ #define ETHER_ADDR_STR_LEN … struct pktq_prec { … }; /* multi-priority pkt queue */ struct pktq { … }; /* operations on a specific precedence in packet queue */ static inline int pktq_plen(struct pktq *pq, int prec) { … } static inline int pktq_pavail(struct pktq *pq, int prec) { … } static inline bool pktq_pfull(struct pktq *pq, int prec) { … } static inline bool pktq_pempty(struct pktq *pq, int prec) { … } static inline struct sk_buff *pktq_ppeek(struct pktq *pq, int prec) { … } static inline struct sk_buff *pktq_ppeek_tail(struct pktq *pq, int prec) { … } struct sk_buff *brcmu_pktq_penq(struct pktq *pq, int prec, struct sk_buff *p); struct sk_buff *brcmu_pktq_penq_head(struct pktq *pq, int prec, struct sk_buff *p); struct sk_buff *brcmu_pktq_pdeq(struct pktq *pq, int prec); struct sk_buff *brcmu_pktq_pdeq_tail(struct pktq *pq, int prec); struct sk_buff *brcmu_pktq_pdeq_match(struct pktq *pq, int prec, bool (*match_fn)(struct sk_buff *p, void *arg), void *arg); /* packet primitives */ struct sk_buff *brcmu_pkt_buf_get_skb(uint len); void brcmu_pkt_buf_free_skb(struct sk_buff *skb); /* Empty the queue at particular precedence level */ /* callback function fn(pkt, arg) returns true if pkt belongs to if */ void brcmu_pktq_pflush(struct pktq *pq, int prec, bool dir, bool (*fn)(struct sk_buff *, void *), void *arg); /* operations on a set of precedences in packet queue */ int brcmu_pktq_mlen(struct pktq *pq, uint prec_bmp); struct sk_buff *brcmu_pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out); /* operations on packet queue as a whole */ static inline int pktq_len(struct pktq *pq) { … } static inline int pktq_max(struct pktq *pq) { … } static inline int pktq_avail(struct pktq *pq) { … } static inline bool pktq_full(struct pktq *pq) { … } static inline bool pktq_empty(struct pktq *pq) { … } void brcmu_pktq_init(struct pktq *pq, int num_prec, int max_len); /* prec_out may be NULL if caller is not interested in return value */ struct sk_buff *brcmu_pktq_peek_tail(struct pktq *pq, int *prec_out); void brcmu_pktq_flush(struct pktq *pq, bool dir, bool (*fn)(struct sk_buff *, void *), void *arg); /* externs */ /* ip address */ struct ipv4_addr; /* * bitfield macros using masking and shift * * remark: the mask parameter should be a shifted mask. */ static inline void brcmu_maskset32(u32 *var, u32 mask, u8 shift, u32 value) { … } static inline u32 brcmu_maskget32(u32 var, u32 mask, u8 shift) { … } static inline void brcmu_maskset16(u16 *var, u16 mask, u8 shift, u16 value) { … } static inline u16 brcmu_maskget16(u16 var, u16 mask, u8 shift) { … } /* externs */ /* format/print */ #ifdef DEBUG void brcmu_prpkt(const char *msg, struct sk_buff *p0); #else #define brcmu_prpkt … #endif /* DEBUG */ #ifdef DEBUG __printf(3, 4) void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...); #else __printf(3, 4) static inline void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...) { } #endif #define BRCMU_BOARDREV_LEN … #define BRCMU_DOTREV_LEN … char *brcmu_boardrev_str(u32 brev, char *buf); char *brcmu_dotrev_str(u32 dotrev, char *buf); #endif /* _BRCMU_UTILS_H_ */
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