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| author | Peter Korsgaard | 2013-12-16 11:35:35 +0100 |
|---|---|---|
| committer | David S. Miller | 2013-12-18 23:46:55 +0100 |
| commit | 4263c86dca5198da6bd3ad826d0b2304fbe25776 (patch) | |
| tree | 9b5705a6b9b1ae2f6d93293acc221897d12ef583 /net/ipv6/ip6_output.c | |
| parent | dm9601: make it clear that dm9620/dm9621a are also supported (diff) | |
| download | kernel-qcow2-linux-4263c86dca5198da6bd3ad826d0b2304fbe25776.tar.gz kernel-qcow2-linux-4263c86dca5198da6bd3ad826d0b2304fbe25776.tar.xz kernel-qcow2-linux-4263c86dca5198da6bd3ad826d0b2304fbe25776.zip | |
dm9601: work around tx fifo sync issue on dm962x
Certain dm962x revisions contain an bug, where if a USB bulk transfer retry
(E.G. if bulk crc mismatch) happens right after a transfer with odd or
maxpacket length, the internal tx hardware fifo gets out of sync causing
the interface to stop working.
Work around it by adding up to 3 bytes of padding to ensure this situation
cannot trigger.
This workaround also means we never pass multiple-of-maxpacket size skb's
to usbnet, so the length adjustment to handle usbnet's padding of those can
be removed.
Cc: <stable@vger.kernel.org>
Reported-by: Joseph Chang <joseph_chang@davicom.com.tw>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_output.c')
0 files changed, 0 insertions, 0 deletions