package/kernel/mac80211/patches/367-ath10k-fix-DMA-related-firmware-crashes-on-multiple-.patch

   1 From: Felix Fietkau <nbd@openwrt.org>
   2 Date: Sun, 13 Sep 2015 22:26:10 +0200
   3 Subject: [PATCH] ath10k: fix DMA related firmware crashes on multiple devices
   4
   5 Some platforms really don't like DMA bursts of 256 bytes, and this
   6 causes the firmware to crash when sending beacons.
   7 Also, changing this based on the firmware version does not seem to make
   8 much sense, so use 128 bytes for all versions.
   9
  10 Cc: stable@vger.kernel.org
  11 Signed-off-by: Felix Fietkau <nbd@openwrt.org>
  12 ---
  13
  14 --- a/drivers/net/wireless/ath/ath10k/hw.h
  15 +++ b/drivers/net/wireless/ath/ath10k/hw.h
  16 @@ -253,7 +253,7 @@ struct ath10k_pktlog_hdr {
  17  #define TARGET_10X_MAX_FRAG_ENTRIES            0
  18
  19  /* 10.2 parameters */
  20 -#define TARGET_10_2_DMA_BURST_SIZE             1
  21 +#define TARGET_10_2_DMA_BURST_SIZE             0
  22
  23  /* Target specific defines for WMI-TLV firmware */
  24  #define TARGET_TLV_NUM_VDEVS                   3