iwlwifi: introduce trans API to get byte count table

In future HW the byte count table address will be configured
by ucode per queue. Add API to expose the byte count table to
the opmode

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/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 883cb487b6521e518d24238536cdc9c58be6ee1e..04e998d9d5fe014863248c84fb51c0f2cc25fa95 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -645,6 +645,8 @@ struct iwl_trans_ops {
        void (*txq_set_shared_mode)(struct iwl_trans *trans, u32 txq_id,
                                    bool shared);
 
+       dma_addr_t (*get_txq_byte_table)(struct iwl_trans *trans, int txq_id);
+
        int (*wait_tx_queue_empty)(struct iwl_trans *trans, u32 txq_bm);
        void (*freeze_txq_timer)(struct iwl_trans *trans, unsigned long txqs,
                                 bool freeze);
@@ -1069,6 +1071,15 @@ static inline void iwl_trans_txq_set_shared_mode(struct iwl_trans *trans,
                trans->ops->txq_set_shared_mode(trans, queue, shared_mode);
 }
 
+static inline dma_addr_t iwl_trans_get_txq_byte_table(struct iwl_trans *trans,
+                                                     int queue)
+{
+       /* we should never be called if the trans doesn't support it */
+       BUG_ON(!trans->ops->get_txq_byte_table);
+
+       return trans->ops->get_txq_byte_table(trans, queue);
+}
+
 static inline void iwl_trans_txq_enable(struct iwl_trans *trans, int queue,
                                        int fifo, int sta_id, int tid,
                                        int frame_limit, u16 ssn,

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index 975900a1efa17f7c5c72c89af2256bf60c89edd6..b9dc82b981e1610152a3c20a0c05fbaa3f2f79cd 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -476,6 +476,7 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int queue,
                                bool configure_scd);
 void iwl_trans_pcie_txq_set_shared_mode(struct iwl_trans *trans, u32 txq_id,
                                        bool shared_mode);
+dma_addr_t iwl_trans_pcie_get_txq_byte_table(struct iwl_trans *trans, int txq);
 void iwl_trans_pcie_log_scd_error(struct iwl_trans *trans,
                                  struct iwl_txq *txq);
 int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 0c2ccbeab167d6e5d832964c12cfe7b0c65e79af..21b1be11100ac1cd710bac7c9fb670ea94832102 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2803,6 +2803,8 @@ static const struct iwl_trans_ops trans_ops_pcie = {
        .txq_disable = iwl_trans_pcie_txq_disable,
        .txq_enable = iwl_trans_pcie_txq_enable,
 
+       .get_txq_byte_table = iwl_trans_pcie_get_txq_byte_table,
+
        .txq_set_shared_mode = iwl_trans_pcie_txq_set_shared_mode,
 
        .wait_tx_queue_empty = iwl_trans_pcie_wait_txq_empty,

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 1c46f146e16844e8d59c3fa8abcc3fceb139fe3a..57a657a17e1e47d64882d488a4563586f160a53c 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -1352,6 +1352,14 @@ void iwl_trans_pcie_txq_set_shared_mode(struct iwl_trans *trans, u32 txq_id,
        txq->ampdu = !shared_mode;
 }
 
+dma_addr_t iwl_trans_pcie_get_txq_byte_table(struct iwl_trans *trans, int txq)
+{
+       struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+
+       return trans_pcie->scd_bc_tbls.dma +
+              txq * sizeof(struct iwlagn_scd_bc_tbl);
+}
+
 void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id,
                                bool configure_scd)
 {