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| 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/iwl-fh.h | |
| parent | iwlwifi: mvm: support dqa-mode agg on non-shared queue (diff) | |
| download | wireguard-linux-1554ed20882798b1da3d9830b0d996a0bc1aaecd.tar.xz wireguard-linux-1554ed20882798b1da3d9830b0d996a0bc1aaecd.zip | |
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/iwl-fh.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-fh.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-fh.h b/drivers/net/wireless/intel/iwlwifi/iwl-fh.h index 582008a66069..270f39ecd2d4 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-fh.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-fh.h @@ -321,6 +321,9 @@ static inline unsigned int FH_MEM_CBBC_QUEUE(unsigned int chnl) /* Write index table */ #define RFH_Q0_FRBDCB_WIDX 0xA08080 #define RFH_Q_FRBDCB_WIDX(q) (RFH_Q0_FRBDCB_WIDX + (q) * 4) +/* Write index table - shadow registers */ +#define RFH_Q0_FRBDCB_WIDX_TRG 0x1C80 +#define RFH_Q_FRBDCB_WIDX_TRG(q) (RFH_Q0_FRBDCB_WIDX_TRG + (q) * 4) /* Read index table */ #define RFH_Q0_FRBDCB_RIDX 0xA080C0 #define RFH_Q_FRBDCB_RIDX(q) (RFH_Q0_FRBDCB_RIDX + (q) * 4) |