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authorDuan Fugang-B38611 <B38611@freescale.com>2014-02-20 18:14:39 +0800
committerDavid S. Miller <davem@davemloft.net>2014-02-20 13:16:13 -0500
commitfb8ef788680d48523321e5f150b23700a1caf980 (patch)
tree5ed3d875d32a6e6b3b63808e5144ab9d4fec7356 /net/sctp
parentcf71d2bc0b8a473209d5c770ce560853bd720d14 (diff)
downloadlinux-fb8ef788680d48523321e5f150b23700a1caf980.tar.bz2
net: fec: fix potential issue to avoid fec interrupt lost and crc error
The current flow: Set TX BD ready, and then set "INT" and "PINS" bit to enable tx interrupt generation and crc checksum. There has potential issue like as: CPU fec uDMA Set tx ready bit uDMA start the BD transmission Set "INT" bit Set "PINS" bit ... Above situation cause fec tx interrupt lost and fec MAC don't do CRC checksum. The patch fix the potential issue. Signed-off-by: Fugang Duan <B38611@freescale.com> Acked-by: Frank Li <Frank.li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
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