Hi,
I placed a number of test prints in my system trying to find where a
DMA data error might occur. In doing so, I found that 3 slots in the
DMA header cache cross a page boundary. Such a situation is allowed on
my system, but it might be forbidden on Atom processors. Please try
this really ugly hack to see if it makes any difference.
Thanks,
Larry
Index: wireless-testing/drivers/net/wireless/b43/dma.h
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/dma.h
+++ wireless-testing/drivers/net/wireless/b43/dma.h
@@ -160,7 +160,7 @@ struct b43_dmadesc_generic {
#define B43_DMA0_RX_FRAMEOFFSET 30
/* DMA engine tuning knobs */
-#define B43_TXRING_SLOTS 256
+#define B43_TXRING_SLOTS 74
#define B43_RXRING_SLOTS 64
#define B43_DMA0_RX_BUFFERSIZE IEEE80211_MAX_FRAME_LEN
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