diff options
Diffstat (limited to 'cpukit/libnetworking/sys/mbuf.h')
| -rw-r--r-- | cpukit/libnetworking/sys/mbuf.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/cpukit/libnetworking/sys/mbuf.h b/cpukit/libnetworking/sys/mbuf.h index 48e9e40c2e..c54b760b3e 100644 --- a/cpukit/libnetworking/sys/mbuf.h +++ b/cpukit/libnetworking/sys/mbuf.h @@ -39,14 +39,15 @@ #endif /* - * Mbufs are of a single size, MSIZE (machine/machparam.h), which + * Mbufs are of a single size, _SYS_MBUF_LEGACY_MSIZE (machine/machparam.h), which * includes overhead. An mbuf may add a single "mbuf cluster" of size * MCLBYTES (also in machine/machparam.h), which has no additional overhead * and is used instead of the internal data area; this is done when * at least MINCLSIZE of data must be stored. */ -#define MLEN (MSIZE - sizeof(struct m_hdr)) /* normal data len */ +#define _SYS_MBUF_LEGACY_MSIZE 128 +#define MLEN (_SYS_MBUF_LEGACY_MSIZE - sizeof(struct m_hdr)) /* normal data len */ #define MHLEN (MLEN - sizeof(struct pkthdr)) /* data len w/pkthdr */ #define MINCLSIZE (MHLEN + MLEN) /* smallest amount to put in cluster */ #define M_MAXCOMPRESS (MHLEN / 2) /* max amount to copy for compression */ @@ -59,7 +60,7 @@ * cltom(x) -- Convert cluster # to ptr to beginning of cluster */ #define mtod(m, t) ((t)((m)->m_data)) -#define dtom(x) ((struct mbuf *)((intptr_t)(x) & ~(MSIZE-1))) +#define dtom(x) ((struct mbuf *)((intptr_t)(x) & ~(_SYS_MBUF_LEGACY_MSIZE-1))) #define mtocl(x) (((uintptr_t)(x) - (uintptr_t)mbutl) >> MCLSHIFT) #define cltom(x) ((caddr_t)((u_long)mbutl + ((u_long)(x) << MCLSHIFT))) |