Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next

[firefly-linux-kernel-4.4.55.git] / drivers / net / wireless / iwlwifi / pcie / trans.c

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 9db8c6eaa1530df95fe2279e21936b6ab193a43b..cc935168ae52b9849753925b19abd79b612767c3 100644 (file)
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1083,6 +1083,11 @@ static void iwl_tx_start(struct iwl_trans *trans)
        iwl_write_prph(trans, SCD_DRAM_BASE_ADDR,
                       trans_pcie->scd_bc_tbls.dma >> 10);
 
+       /* The chain extension of the SCD doesn't work well. This feature is
+        * enabled by default by the HW, so we need to disable it manually.
+        */
+       iwl_write_prph(trans, SCD_CHAINEXT_EN, 0);
+
        for (i = 0; i < trans_pcie->n_q_to_fifo; i++) {
                int fifo = trans_pcie->setup_q_to_fifo[i];