diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2008-07-07 00:42:35 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2008-07-07 00:42:35 +0000 |
| commit | a7cb196aee24adfb6a4fe78e540bba0925bd26ee (patch) | |
| tree | 038737c1a1ae94963a518faf81eca2dacc2013ea | |
| parent | d7d896842bac34b66c1d99aafc2c327cb2992bbf (diff) | |
tweak the alignment of the rx buffers so the headers in the frame are
better aligned for fast access. i didnt bench, so maybe this does nothing.
| -rw-r--r-- | sys/dev/pci/if_vic.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/dev/pci/if_vic.c b/sys/dev/pci/if_vic.c index f4024e7b884..8f440957a5c 100644 --- a/sys/dev/pci/if_vic.c +++ b/sys/dev/pci/if_vic.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_vic.c,v 1.52 2007/11/28 11:13:47 reyk Exp $ */ +/* $OpenBSD: if_vic.c,v 1.53 2008/07/07 00:42:34 dlg Exp $ */ /* * Copyright (c) 2006 Reyk Floeter <reyk@openbsd.org> @@ -1337,7 +1337,8 @@ vic_alloc_mbuf(struct vic_softc *sc, bus_dmamap_t map) m_freem(m); return (NULL); } - m->m_len = m->m_pkthdr.len = MCLBYTES; + m->m_data += ETHER_ALIGN; + m->m_len = m->m_pkthdr.len = MCLBYTES - ETHER_ALIGN; if (bus_dmamap_load_mbuf(sc->sc_dmat, map, m, BUS_DMA_NOWAIT) != 0) { printf("%s: could not load mbuf DMA map", DEVNAME(sc)); |