iwlwifi: pcie: fix the set of DMA memory mask

Our 9000 device supports 64 bit DMA address for RX only, and
not for TX.
Setting DMA mask to 64 for the whole device is erroneous - we
can do it only for a000 devices where device is capable of
both RX & TX DMA with 64 bit address space.

Fixes: 96a6497bc3ed ("iwlwifi: pcie: add 9000 series multi queue rx DMA support")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index c1d99d15796d205f0e8abdf4314d678064111723..b28d99f61a3581cc36a010abc64288eafe9dddfd 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2953,16 +2953,12 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
                                       PCIE_LINK_STATE_CLKPM);
        }
 
-       if (cfg->mq_rx_supported)
-               addr_size = 64;
-       else
-               addr_size = 36;
-
        if (cfg->use_tfh) {
+               addr_size = 64;
                trans_pcie->max_tbs = IWL_TFH_NUM_TBS;
                trans_pcie->tfd_size = sizeof(struct iwl_tfh_tfd);
-
        } else {
+               addr_size = 36;
                trans_pcie->max_tbs = IWL_NUM_OF_TBS;
                trans_pcie->tfd_size = sizeof(struct iwl_tfd);
        }