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| author | yongari <yongari@FreeBSD.org> | 2009-12-20 19:11:32 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2009-12-20 19:11:32 +0000 |
| commit | d7fc8c3ed3e3340ccb60233ff6fe86cb3b63bb10 (patch) | |
| tree | 9b0b05ce8b62373830ad06ab2125b0107aa2786e /sys/dev/vge | |
| parent | 8af5f7e769af4c1a0e6e0c231f031b842287d0b2 (diff) | |
| download | FreeBSD-src-d7fc8c3ed3e3340ccb60233ff6fe86cb3b63bb10.zip FreeBSD-src-d7fc8c3ed3e3340ccb60233ff6fe86cb3b63bb10.tar.gz | |
VT6130 datasheet was wrong. If VT6130 receive a jumbo frame the
controller will split the jumbo frame into multiple RX buffers.
However it seems the hardware always dma the frame to 8 bytes
boundary for the split frames. Only the first part of the fragment
can have 4 byte alignment and subsequent buffers should be 8 bytes
aligned. Change RX buffer the alignment requirement to 8 bytes from
4 bytes.
Diffstat (limited to 'sys/dev/vge')
| -rw-r--r-- | sys/dev/vge/if_vgevar.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/vge/if_vgevar.h b/sys/dev/vge/if_vgevar.h index 7af0328..da8f6c5 100644 --- a/sys/dev/vge/if_vgevar.h +++ b/sys/dev/vge/if_vgevar.h @@ -39,7 +39,7 @@ #define VGE_TX_RING_ALIGN 64 #define VGE_RX_RING_ALIGN 64 #define VGE_MAXTXSEGS 6 -#define VGE_RX_BUF_ALIGN sizeof(uint32_t) +#define VGE_RX_BUF_ALIGN sizeof(uint64_t) /* * VIA Velocity allows 64bit DMA addressing but high 16bits |
