iwlwifi: revamp tx scheduler byte count tables handling

This moves byte count tables to tx domain removing completely
ambivalent shared data. Changes handling of allocation
byte count tables and keep warm consistent memory
Moves general tx scheduler definitions from iwl-4956-hw.h
to iwl-fh.h

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 29 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 017e5ea58de6..c43cf2f072cd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -715,8 +715,7 @@ static int iwl4965_alive_notify(struct iwl_priv *priv)
 
         /* Tel 4965 where to find Tx byte count tables */
         iwl_write_prph(priv, IWL49_SCD_DRAM_BASE_ADDR,
-                (priv->shared_phys +
-                 offsetof(struct iwl4965_shared, queues_bc_tbls)) >> 10);
+                        priv->scd_bc_tbls.dma >> 10);
 
         /* Disable chain mode for all queues */
         iwl_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0);
@@ -804,6 +803,8 @@ static int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
         }
 
         priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
+        priv->hw_params.scd_bc_tbls_size =
+                        IWL49_NUM_QUEUES * sizeof(struct iwl4965_scd_bc_tbl);
         priv->hw_params.max_stations = IWL4965_STATION_COUNT;
         priv->hw_params.bcast_sta_id = IWL4965_BROADCAST_ID;
         priv->hw_params.max_data_size = IWL49_RTC_DATA_SIZE;
@@ -1631,28 +1632,6 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
 }
 #endif
 
-static int iwl4965_alloc_shared_mem(struct iwl_priv *priv)
-{
-        priv->shared_virt = pci_alloc_consistent(priv->pci_dev,
-                                        sizeof(struct iwl4965_shared),
-                                        &priv->shared_phys);
-        if (!priv->shared_virt)
-                return -ENOMEM;
-
-        memset(priv->shared_virt, 0, sizeof(struct iwl4965_shared));
-
-        return 0;
-}
-
-static void iwl4965_free_shared_mem(struct iwl_priv *priv)
-{
-        if (priv->shared_virt)
-                pci_free_consistent(priv->pci_dev,
-                                    sizeof(struct iwl4965_shared),
-                                    priv->shared_virt,
-                                    priv->shared_phys);
-}
-
 /**
  * iwl4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
  */
@@ -1660,7 +1639,7 @@ static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
                                             struct iwl_tx_queue *txq,
                                             u16 byte_cnt)
 {
-        struct iwl4965_shared *shared_data = priv->shared_virt;
+        struct iwl4965_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr;
         int txq_id = txq->q.id;
         int write_ptr = txq->q.write_ptr;
         int len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
@@ -1670,11 +1649,11 @@ static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
 
         bc_ent = cpu_to_le16(len & 0xFFF);
         /* Set up byte count within first 256 entries */
-        shared_data->queues_bc_tbls[txq_id].tfd_offset[write_ptr] = bc_ent;
+        scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent;
 
         /* If within first 64 entries, duplicate at end */
         if (write_ptr < TFD_QUEUE_SIZE_BC_DUP)
-                shared_data->queues_bc_tbls[txq_id].
+                scd_bc_tbl[txq_id].
                         tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent;
 }
 
@@ -2296,8 +2275,6 @@ static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
 
 static struct iwl_lib_ops iwl4965_lib = {
         .set_hw_params = iwl4965_hw_set_hw_params,
-        .alloc_shared_mem = iwl4965_alloc_shared_mem,
-        .free_shared_mem = iwl4965_free_shared_mem,
         .txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl,
         .txq_set_sched = iwl4965_txq_set_sched,
         .txq_agg_enable = iwl4965_txq_agg_enable,