It has been confirmed by Atheros that this PCI bug affects the RX side only,
so we can keep the 128B DMA size for TX.
With this change we can double the thruput of ath5k from 15Mps to 30Mbps.
We have been using this patch since more than 6 month in a production
environment without problems and a significant performance improvement.
It has also been said to fix HW encryption:
http://www.mail-archive.com/ath5k-devel@lists.ath5k.org/msg04311.html
Patch from: kentarou matsuyama <matsuyama@thinktube.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25104 3c298f89-4303-0410-b956-a3cf2f4a3e73
Atheros legacy hardware does not perform well on ar71xx unless both TXCFG and RXCFG are forced to 4 bytes.
The previous patch only changed RXCFG. The OpenWrt Madwifi HAL also sets both RXCFG and TXCFG
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17328 3c298f89-4303-0410-b956-a3cf2f4a3e73
