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authorJohn Crispin <john@phrozen.org>2016-06-10 13:28:02 +0200
committerDavid S. Miller <davem@davemloft.net>2016-06-11 08:29:29 +0200
commit6675086d04e7c0748cd5884f7c8611b5f0836250 (patch)
treea4374f888e8773e7961888e798eb558eb9fb49ca /Documentation/s390
parentnet: mediatek: dropped rx packets are not being counted properly (diff)
downloadlinux-6675086d04e7c0748cd5884f7c8611b5f0836250.tar.xz
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net: mediatek: add next data pointer coherency protection
The QDMA engine can fail to update the register pointing to the next TX descriptor if this bit does not get set in the QDMA configuration register. Not setting this bit can result in invalid values inside the TX rings registers which will causes TX stalls. Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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