diff options
| author | bmilekic <bmilekic@FreeBSD.org> | 2000-10-08 03:52:27 +0000 |
|---|---|---|
| committer | bmilekic <bmilekic@FreeBSD.org> | 2000-10-08 03:52:27 +0000 |
| commit | 003596e09842fe00c72052b07fb5a0f0e5fac8f0 (patch) | |
| tree | 70cad3956bb02ab8d771a67ff83f154c3ca0686a /sys/alpha/include | |
| parent | 90447d2ee78c3d0cd03cbe5a31ab1929f48c5131 (diff) | |
| download | FreeBSD-src-003596e09842fe00c72052b07fb5a0f0e5fac8f0.zip FreeBSD-src-003596e09842fe00c72052b07fb5a0f0e5fac8f0.tar.gz | |
Cleanup comment in machine/param.h regarding mbuf-related sizes, and get rid
of MCLOFSET, which does not appear to be used anywhere anymore, and if it is,
it probably shouldn't be.
Diffstat (limited to 'sys/alpha/include')
| -rw-r--r-- | sys/alpha/include/param.h | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/sys/alpha/include/param.h b/sys/alpha/include/param.h index 28bef01..efd4efe 100644 --- a/sys/alpha/include/param.h +++ b/sys/alpha/include/param.h @@ -120,18 +120,16 @@ /* * Constants related to network buffer management. - * MCLBYTES must be no larger than CLBYTES (the software page size), and, - * on machines that exchange pages of input or output buffers with mbuf - * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple - * of the hardware page size. + * MCLBYTES must be no larger than PAGE_SIZE. */ +#ifndef MSIZE #define MSIZE 256 /* size of an mbuf */ +#endif /* MSIZE */ + #ifndef MCLSHIFT -# define MCLSHIFT 11 /* convert bytes to m_buf clusters */ - /* 2K cluster can hold Ether frame */ +#define MCLSHIFT 11 /* convert bytes to mbuf clusters */ #endif /* MCLSHIFT */ -#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ -#define MCLOFSET (MCLBYTES - 1) +#define MCLBYTES (1 << MCLSHIFT) /* size of a mbuf cluster */ /* pages ("clicks") to disk blocks */ #define ctod(x) ((x) << (PAGE_SHIFT - DEV_BSHIFT)) |
