diff options
| author | Sara Sharon <sara.sharon@intel.com> | 2018-02-05 12:37:05 +0200 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2018-08-02 10:50:06 +0300 |
| commit | 92536c96159b62d73843af5702dd4e00d4bcffdf (patch) | |
| tree | 2fa8b374623444be4ecfab7d2cc673909334bb63 /drivers/net/wireless/intel/iwlwifi/iwl-trans.h | |
| parent | 1b4bbe8bf2eb631974c0688d7eeb350f86de25f8 (diff) | |
iwlwifi: trans: add a new op for getting DMA data
Op mode will need this data in order to feed FW with it.
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-trans.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-trans.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h index 4229992073b6..9483f76476de 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h @@ -440,6 +440,20 @@ struct iwl_trans_txq_scd_cfg { }; /** + * struct iwl_trans_rxq_dma_data - RX queue DMA data + * @fr_bd_cb: DMA address of free BD cyclic buffer + * @fr_bd_wid: Initial write index of the free BD cyclic buffer + * @urbd_stts_wrptr: DMA address of urbd_stts_wrptr + * @ur_bd_cb: DMA address of used BD cyclic buffer + */ +struct iwl_trans_rxq_dma_data { + u64 fr_bd_cb; + u32 fr_bd_wid; + u64 urbd_stts_wrptr; + u64 ur_bd_cb; +}; + +/** * struct iwl_trans_ops - transport specific operations * * All the handlers MUST be implemented @@ -559,6 +573,8 @@ struct iwl_trans_ops { int cmd_id, int size, unsigned int queue_wdg_timeout); void (*txq_free)(struct iwl_trans *trans, int queue); + int (*rxq_dma_data)(struct iwl_trans *trans, int queue, + struct iwl_trans_rxq_dma_data *data); void (*txq_set_shared_mode)(struct iwl_trans *trans, u32 txq_id, bool shared); @@ -947,6 +963,16 @@ iwl_trans_txq_enable_cfg(struct iwl_trans *trans, int queue, u16 ssn, cfg, queue_wdg_timeout); } +static inline int +iwl_trans_get_rxq_dma_data(struct iwl_trans *trans, int queue, + struct iwl_trans_rxq_dma_data *data) +{ + if (WARN_ON_ONCE(!trans->ops->rxq_dma_data)) + return -ENOTSUPP; + + return trans->ops->rxq_dma_data(trans, queue, data); +} + static inline void iwl_trans_txq_free(struct iwl_trans *trans, int queue) { |