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| author | Hauke Mehrtens <hauke@openwrt.org> | 2013-02-18 20:44:26 +0000 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@openwrt.org> | 2013-02-18 20:44:26 +0000 |
| commit | 5ff0c7a66c3932b202f4bd309c3d3ca911cde2e3 (patch) | |
| tree | bf64752fbc5f2e606b5feb486067a94cba9481b8 | |
| parent | a96a74fc06f7257707d01ac6bf0ce4c365300172 (diff) | |
| download | upstream-5ff0c7a66c3932b202f4bd309c3d3ca911cde2e3.tar.gz upstream-5ff0c7a66c3932b202f4bd309c3d3ca911cde2e3.tar.bz2 upstream-5ff0c7a66c3932b202f4bd309c3d3ca911cde2e3.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>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35671 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -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) + |