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Merge pull request #4773 from Yonezawa-T2/rbuf_int_size

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rbuf: made `RBUF_INT_SIZE` configurable
This commit is contained in:
Peter Kietzmann 2016-02-29 10:57:37 +01:00
commit 10cc38e3dc
1 changed files with 10 additions and 1 deletions
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11
sys/net/gnrc/network_layer/sixlowpan/frag/rbuf.c
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@ -29,8 +29,17 @@
#define ENABLE_DEBUG (0)
#include "debug.h"
/* estimated fragment payload size to determinate RBUF_INT_SIZE, default to
* MAC payload size - fragment header. */
#ifndef GNRC_SIXLOWPAN_FRAG_SIZE
/* assuming 64-bit source/destination address, source PAN ID omitted */
#define GNRC_SIXLOWPAN_FRAG_SIZE (104 - 5)
#endif
#ifndef RBUF_INT_SIZE
#define RBUF_INT_SIZE (GNRC_IPV6_NETIF_DEFAULT_MTU * RBUF_SIZE / 127)
/* same as ((int) ceil((double) N / D)) */
#define DIV_CEIL(N, D) (((N) + (D) - 1) / (D))
#define RBUF_INT_SIZE (DIV_CEIL(GNRC_IPV6_NETIF_DEFAULT_MTU, GNRC_SIXLOWPAN_FRAG_SIZE) * RBUF_SIZE)
#endif
static rbuf_int_t rbuf_int[RBUF_INT_SIZE];