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authorLuis R. Rodriguez <lrodriguez@atheros.com>2010-07-14 20:08:41 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-07-16 14:03:42 -0400
commit9171acc7e094b3ca88e624f39891a4f3bf9d083c (patch)
tree513857338301a5f04cc07ddae89d19ee9ae4b44a /fs/nfs/Kconfig
parent15804e3e9de52f1baefad34233424488b5672853 (diff)
ath9k_hw: Fix AR9003 MPDU delimeter CRC check for middle subframes
An A-MPDU may contain several subframes each containing its own CRC for the data. Each subframe also has a respective CRC for the MPDU length and 4 reserved bits (aka delimeter CRC). AR9003 will ACK frames that have a valid data CRC but have failed to pass the CRC for the MPDU length, if and only if the subframe is not the last subframe in an A-MPDU and if an OFDM phy OFDM reset error has been caught. Discarding those subframes results in packet loss under heavy stress conditions, an example being UDP video. Since the frames are ACK'd by hardware we need to let these frames through and process them as valid frames. Cc: Tushit Jain <tushit.jain@atheros.com> Cc: Kyungwan Nam <kyungwan.nam@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'fs/nfs/Kconfig')
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