iwlwifi: TX update chicken bits

This instructs FH to increment the retry count of a packet when
it is brought from the memory to TX-FIFO to save transactions
during aggregation flow.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h
index bc20acb36aa6..c3dadb03701c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fh.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fh.h
@@ -396,6 +396,11 @@
 #define FH_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \
                 (FH_SRVC_LOWER_BOUND + ((_chnl) - 9) * 0x4)
 
+#define FH_TX_CHICKEN_BITS_REG  (FH_MEM_LOWER_BOUND + 0xE98)
+/* Instruct FH to increment the retry count of a packet when
+ * it is brought from the memory to TX-FIFO
+ */
+#define FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN    (0x00000002)
 
 /**
  * struct iwl_rb_status - reseve buffer status