This is a note to let you know that I've just added the patch titled
b43: Increase number of RX DMA slots
to the 3.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
b43-increase-number-of-rx-dma-slots.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From ccae0e50c16a7f7adb029c169147400d1ce9f703 Mon Sep 17 00:00:00 2001
From: Larry Finger <[email protected]>
Date: Sun, 17 Feb 2013 17:01:20 +0000
Subject: b43: Increase number of RX DMA slots
From: Larry Finger <[email protected]>
commit ccae0e50c16a7f7adb029c169147400d1ce9f703 upstream.
Bastian Bittorf reported that some of the silent freezes on a Linksys WRT54G
were due to overflow of the RX DMA ring buffer, which was created with 64
slots. That finding reminded me that I was seeing similar crashed on a netbook,
which also has a relatively slow processor. After increasing the number of
slots to 128, runs on the netbook that previously failed now worked; however,
I found that 109 slots had been used in one test. For that reason, the number
of slots is being increased to 256.
Signed-off-by: Larry Finger <[email protected]>
Cc: Bastian Bittorf <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/b43/dma.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/b43/dma.h
+++ b/drivers/net/wireless/b43/dma.h
@@ -169,7 +169,7 @@ struct b43_dmadesc_generic {
/* DMA engine tuning knobs */
#define B43_TXRING_SLOTS 256
-#define B43_RXRING_SLOTS 64
+#define B43_RXRING_SLOTS 256
#define B43_DMA0_RX_FW598_BUFSIZE (B43_DMA0_RX_FW598_FO +
IEEE80211_MAX_FRAME_LEN)
#define B43_DMA0_RX_FW351_BUFSIZE (B43_DMA0_RX_FW351_FO +
IEEE80211_MAX_FRAME_LEN)
Patches currently in stable-queue which might be from [email protected]
are
queue-3.8/rtlwifi-rtl8192cu-add-new-usb-id.patch
queue-3.8/rtlwifi-rtl8192cu-fix-null-dereference-bug-when-using-new_id.patch
queue-3.8/b43-increase-number-of-rx-dma-slots.patch
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