diff options
| author | Sara Sharon <sara.sharon@intel.com> | 2016-04-17 15:08:59 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2016-05-10 22:34:09 +0300 |
| commit | 1554ed20882798b1da3d9830b0d996a0bc1aaecd (patch) | |
| tree | a3b01f8f8aea476448f056452bd42e7c837682c6 /drivers/net/wireless/intel/iwlwifi/pcie/rx.c | |
| parent | cf961e16620f88686e0662753bd92d8383f36862 (diff) | |
| download | linux-next-1554ed20882798b1da3d9830b0d996a0bc1aaecd.tar.gz | |
iwlwifi: pcie: use shadow registers for updating write pointer
The RX queues have a shadow register for the write pointer
that enables updates without grabbing NIC access. Use them
instead of the periphery registers because accessing those
is much more expensive.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/rx.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index 89f87f7fb0d6..347782157407 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -208,8 +208,8 @@ static void iwl_pcie_rxq_inc_wr_ptr(struct iwl_trans *trans, rxq->write_actual = round_down(rxq->write, 8); if (trans->cfg->mq_rx_supported) - iwl_write_prph(trans, RFH_Q_FRBDCB_WIDX(rxq->id), - rxq->write_actual); + iwl_write32(trans, RFH_Q_FRBDCB_WIDX_TRG(rxq->id), + rxq->write_actual); /* * write to FH_RSCSR_CHNL0_WPTR register even in MQ as a W/A to * hardware shadow registers bug - writing to RFH_Q_FRBDCB_WIDX will |