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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2013-02-18 20:44:26 +0000 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2013-02-18 20:44:26 +0000 |
| commit | 48bc2fbff3bcde1f7e848d04bac2216e5e3c016f (patch) | |
| tree | aa59a9297c36926c5321c9ba74c39c70f5d39b53 | |
| parent | f5b63ffd33c15a74391cdd2cecee8d733a873a91 (diff) | |
| download | upstream-48bc2fbff3bcde1f7e848d04bac2216e5e3c016f.tar.gz upstream-48bc2fbff3bcde1f7e848d04bac2216e5e3c016f.tar.bz2 upstream-48bc2fbff3bcde1f7e848d04bac2216e5e3c016f.zip | |
mac80211: b43: Increase number of RX DMA slots
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 <Larry.Finger@lwfinger.net>
SVN-Revision: 35671
| -rw-r--r-- | package/mac80211/patches/840-43-increase_number_of_rx_dma_slots.patch | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/package/mac80211/patches/840-43-increase_number_of_rx_dma_slots.patch b/package/mac80211/patches/840-43-increase_number_of_rx_dma_slots.patch new file mode 100644 index 0000000000..94c6ff2dbb --- /dev/null +++ b/package/mac80211/patches/840-43-increase_number_of_rx_dma_slots.patch @@ -0,0 +1,11 @@ +--- 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) + |