version 1.1.2.7, 2013/06/25 08:45:50
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version 1.1.2.8, 2013/06/25 08:53:22
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Line 198 io_etherSend(int eth, const void *buf, size_t buflen)
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Line 198 io_etherSend(int eth, const void *buf, size_t buflen)
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} |
} |
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#ifdef __FreeBSD__ |
#ifdef __FreeBSD__ |
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static inline void |
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ackZCbuf(struct bpf_zbuf_header * __restrict bzh) |
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{ |
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atomic_store_rel_int(&bzh->bzh_user_gen, bzh->bzh_kernel_gen); |
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} |
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static inline int |
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chkZCbuf(struct bpf_zbuf_header * __restrict bzh) |
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{ |
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/* return true if userspace owns buffer, and false otherwise. */ |
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return (bzh->bzh_user_gen != atomic_load_acq_int(&bzh->bzh_kernel_gen)); |
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} |
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static inline ssize_t |
static inline ssize_t |
nextZCbuf(void ** __restrict zcache, struct bpf_zbuf * __restrict zbuf, |
nextZCbuf(void ** __restrict zcache, struct bpf_zbuf * __restrict zbuf, |
const void * __restrict buf) |
const void * __restrict buf) |
Line 207 nextZCbuf(void ** __restrict zcache, struct bpf_zbuf *
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Line 220 nextZCbuf(void ** __restrict zcache, struct bpf_zbuf *
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if (!*zcache || *zcache == zbuf->bz_bufb) { |
if (!*zcache || *zcache == zbuf->bz_bufb) { |
bzh = (struct bpf_zbuf_header *) zbuf->bz_bufa; |
bzh = (struct bpf_zbuf_header *) zbuf->bz_bufa; |
if (bzh->bzh_user_gen != atomic_load_acq_int(&bzh->bzh_kernel_gen)) { | if (chkZCbuf(bzh)) { |
rlen = atomic_load_acq_int(&bzh->bzh_kernel_len); |
rlen = atomic_load_acq_int(&bzh->bzh_kernel_len); |
*zcache = zbuf->bz_bufa; |
*zcache = zbuf->bz_bufa; |
if (buf) |
if (buf) |
buf = ((caddr_t) *zcache) + sizeof(struct bpf_zbuf_header); |
buf = ((caddr_t) *zcache) + sizeof(struct bpf_zbuf_header); |
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ackZCbuf(bzh); |
} |
} |
} else if (*zcache == zbuf->bz_bufa) { |
} else if (*zcache == zbuf->bz_bufa) { |
bzh = (struct bpf_zbuf_header *) zbuf->bz_bufb; |
bzh = (struct bpf_zbuf_header *) zbuf->bz_bufb; |
if (bzh->bzh_user_gen != atomic_load_acq_int(&bzh->bzh_kernel_gen)) { | if (chkZCbuf(bzh)) { |
rlen = atomic_load_acq_int(&bzh->bzh_kernel_len); |
rlen = atomic_load_acq_int(&bzh->bzh_kernel_len); |
*zcache = zbuf->bz_bufb; |
*zcache = zbuf->bz_bufb; |
if (buf) |
if (buf) |
buf = ((caddr_t) *zcache) + sizeof(struct bpf_zbuf_header); |
buf = ((caddr_t) *zcache) + sizeof(struct bpf_zbuf_header); |
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ackZCbuf(bzh); |
} |
} |
} |
} |
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