aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/iwlwifi/iwl-4965.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index aad32a3ffd1..1f22140bec1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -716,7 +716,7 @@ 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_byte_cnt_tbls)) >> 10);
+ offsetof(struct iwl4965_shared, queues_bc_tbls)) >> 10);
/* Disable chain mode for all queues */
iwl_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0);
@@ -1668,21 +1668,22 @@ static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
u16 byte_cnt)
{
- int len;
- int txq_id = txq->q.id;
struct iwl4965_shared *shared_data = priv->shared_virt;
+ 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;
+ __le16 bc_ent;
- len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
+ WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX);
+ bc_ent = cpu_to_le16(len & 0xFFF);
/* Set up byte count within first 256 entries */
- IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[txq->q.write_ptr], byte_cnt, len);
+ shared_data->queues_bc_tbls[txq_id].tfd_offset[write_ptr] = bc_ent;
/* If within first 64 entries, duplicate at end */
- if (txq->q.write_ptr < IWL49_MAX_WIN_SIZE)
- IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[IWL49_QUEUE_SIZE + txq->q.write_ptr],
- byte_cnt, len);
+ if (write_ptr < TFD_QUEUE_SIZE_BC_DUP)
+ shared_data->queues_bc_tbls[txq_id].
+ tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent;
}
/**