* Move setting of tx retry limits on a separate function
(we 'll clean up this AR5210 mess later)
Signed-off-by: Nick Kossifidis <mickfl...@gmail.com>
---
drivers/net/wireless/ath/ath5k/qcu.c | 92 ++++++++++++++++++++-------------
1 files changed, 56 insertions(+), 36 deletions(-)
diff --git a/drivers/net/wireless/ath/ath5k/qcu.c
b/drivers/net/wireless/ath/ath5k/qcu.c
index 00c4908..c422d5c 100644
--- a/drivers/net/wireless/ath/ath5k/qcu.c
+++ b/drivers/net/wireless/ath/ath5k/qcu.c
@@ -226,11 +226,61 @@ int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah, enum
ath5k_tx_queue queue_type,
\*******************************/
/*
+ * Set tx retry limits on DCU
+ */
+static void ath5k_hw_set_tx_retry_limits(struct ath5k_hw *ah,
+ unsigned int queue)
+{
+ u32 retry_lg, retry_sh;
+
+ /*
+ * Calculate and set retry limits
+ */
+ if (ah->ah_software_retry) {
+ /* XXX Need to test this */
+ retry_lg = ah->ah_limit_tx_retries;
+ retry_sh = retry_lg = retry_lg > AR5K_DCU_RETRY_LMT_SH_RETRY ?
+ AR5K_DCU_RETRY_LMT_SH_RETRY : retry_lg;
+ } else {
+ retry_lg = AR5K_INIT_LG_RETRY;
+ retry_sh = AR5K_INIT_SH_RETRY;
+ }
+
+ /* Single data queue on AR5210 */
+ if (ah->ah_version == AR5K_AR5210) {
+ struct ath5k_txq_info *tq = &ah->ah_txq[queue];
+
+ if (queue > 0)
+ return;
+
+ ath5k_hw_reg_write(ah,
+ (tq->tqi_cw_min << AR5K_NODCU_RETRY_LMT_CW_MIN_S)
+ | AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
+ AR5K_NODCU_RETRY_LMT_SLG_RETRY)
+ | AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
+ AR5K_NODCU_RETRY_LMT_SSH_RETRY)
+ | AR5K_REG_SM(retry_lg, AR5K_NODCU_RETRY_LMT_LG_RETRY)
+ | AR5K_REG_SM(retry_sh, AR5K_NODCU_RETRY_LMT_SH_RETRY),
+ AR5K_NODCU_RETRY_LMT);
+ /* DCU on AR5211+ */
+ } else {
+ ath5k_hw_reg_write(ah,
+ AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
+ AR5K_DCU_RETRY_LMT_SLG_RETRY) |
+ AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
+ AR5K_DCU_RETRY_LMT_SSH_RETRY) |
+ AR5K_REG_SM(retry_lg, AR5K_DCU_RETRY_LMT_LG_RETRY) |
+ AR5K_REG_SM(retry_sh, AR5K_DCU_RETRY_LMT_SH_RETRY),
+ AR5K_QUEUE_DFS_RETRY_LIMIT(queue));
+ }
+ return;
+}
+
+/*
* Set DFS properties for a transmit queue on DCU
*/
int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue)
{
- u32 retry_lg, retry_sh;
struct ath5k_txq_info *tq = &ah->ah_txq[queue];
AR5K_ASSERT_ENTRY(queue, ah->ah_capabilities.cap_queues.q_tx_num);
@@ -271,42 +321,7 @@ int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned
int queue)
ath5k_hw_reg_write(ah, (ah->ah_bwmode == AR5K_BWMODE_40MHZ) ?
AR5K_INIT_PROTO_TIME_CNTRL_TURBO :
AR5K_INIT_PROTO_TIME_CNTRL, AR5K_IFS1);
- }
-
- /*
- * Calculate and set retry limits
- */
- if (ah->ah_software_retry) {
- /* XXX Need to test this */
- retry_lg = ah->ah_limit_tx_retries;
- retry_sh = retry_lg = retry_lg > AR5K_DCU_RETRY_LMT_SH_RETRY ?
- AR5K_DCU_RETRY_LMT_SH_RETRY : retry_lg;
} else {
- retry_lg = AR5K_INIT_LG_RETRY;
- retry_sh = AR5K_INIT_SH_RETRY;
- }
-
- /*No QCU/DCU [5210]*/
- if (ah->ah_version == AR5K_AR5210) {
- ath5k_hw_reg_write(ah,
- (tq->tqi_cw_min << AR5K_NODCU_RETRY_LMT_CW_MIN_S)
- | AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
- AR5K_NODCU_RETRY_LMT_SLG_RETRY)
- | AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
- AR5K_NODCU_RETRY_LMT_SSH_RETRY)
- | AR5K_REG_SM(retry_lg, AR5K_NODCU_RETRY_LMT_LG_RETRY)
- | AR5K_REG_SM(retry_sh, AR5K_NODCU_RETRY_LMT_SH_RETRY),
- AR5K_NODCU_RETRY_LMT);
- } else {
- /*QCU/DCU [5211+]*/
- ath5k_hw_reg_write(ah,
- AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
- AR5K_DCU_RETRY_LMT_SLG_RETRY) |
- AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
- AR5K_DCU_RETRY_LMT_SSH_RETRY) |
- AR5K_REG_SM(retry_lg, AR5K_DCU_RETRY_LMT_LG_RETRY) |
- AR5K_REG_SM(retry_sh, AR5K_DCU_RETRY_LMT_SH_RETRY),
- AR5K_QUEUE_DFS_RETRY_LIMIT(queue));
/*===Rest is also for QCU/DCU only [5211+]===*/
@@ -321,6 +336,11 @@ int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned
int queue)
AR5K_QUEUE_DFS_LOCAL_IFS(queue));
/*
+ * Set tx retry limits for this queue
+ */
+ ath5k_hw_set_tx_retry_limits(ah, queue);
+
+ /*
* Set misc registers
*/
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