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-rw-r--r--drivers/net/wireless/intel/iwlwifi/iwl-fh.h4
-rw-r--r--drivers/net/wireless/intel/iwlwifi/pcie/rx.c8
2 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-fh.h b/drivers/net/wireless/intel/iwlwifi/iwl-fh.h
index 270f39ecd2d4..f08cdeef2d30 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-fh.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-fh.h
@@ -384,7 +384,9 @@ static inline unsigned int FH_MEM_CBBC_QUEUE(unsigned int chnl)
#define RFH_GEN_CFG 0xA09800
#define RFH_GEN_CFG_SERVICE_DMA_SNOOP BIT(0)
#define RFH_GEN_CFG_RFH_DMA_SNOOP BIT(1)
-#define RFH_GEN_CFG_RB_CHUNK_SIZE BIT(4) /* 0 - 64B, 1- 128B */
+#define RFH_GEN_CFG_RB_CHUNK_SIZE_POS 4
+#define RFH_GEN_CFG_RB_CHUNK_SIZE_128 1
+#define RFH_GEN_CFG_RB_CHUNK_SIZE_64 0
#define RFH_GEN_CFG_DEFAULT_RXQ_NUM_MASK 0xF00
#define RFH_GEN_CFG_DEFAULT_RXQ_NUM_POS 8
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index f1e309d3deee..27ff74d6ad66 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -848,13 +848,17 @@ static void iwl_pcie_rx_mq_hw_init(struct iwl_trans *trans)
/*
* Activate DMA snooping.
- * Set RX DMA chunk size to 64B
+ * Set RX DMA chunk size to 64B for IOSF and 128B for PCIe
* Default queue is 0
*/
iwl_write_prph_no_grab(trans, RFH_GEN_CFG, RFH_GEN_CFG_RFH_DMA_SNOOP |
(DEFAULT_RXQ_NUM <<
RFH_GEN_CFG_DEFAULT_RXQ_NUM_POS) |
- RFH_GEN_CFG_SERVICE_DMA_SNOOP);
+ RFH_GEN_CFG_SERVICE_DMA_SNOOP |
+ (trans->cfg->integrated ?
+ RFH_GEN_CFG_RB_CHUNK_SIZE_64 :
+ RFH_GEN_CFG_RB_CHUNK_SIZE_128) <<
+ RFH_GEN_CFG_RB_CHUNK_SIZE_POS);
/* Enable the relevant rx queues */
iwl_write_prph_no_grab(trans, RFH_RXF_RXQ_ACTIVE, enabled);