diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | 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 00c490833ba7..c422d5c92d46 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 */ |