mv643xx_eth: enforce multiple-of-8-bytes receive buffer size restriction

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The mv643xx_eth hardware ignores the lower three bits of the buffer
size field in receive descriptors, causing the reception of full-sized
packets to fail at some MTUs.  Fix this by rounding the size of
allocated receive buffers up to a multiple of eight bytes.

While we are at it, add a bit of extra space to each receive buffer so
that we can handle multiple vlan tags on ingress.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>

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Lennert Buytenhek 2008-08-24 03:00:20 +02:00 • committed by Lennert Buytenhek

parent 9e1f377242

commit abe787170b

1 changed files with 13 additions and 5 deletions

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drivers/net/mv643xx_eth.c

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