diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_mac.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_mac.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c index 10c812e353a6..f5896aa30005 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c @@ -410,12 +410,36 @@ static void ar9003_hw_set11n_ratescenario(struct ath_hw *ah, void *ds, static void ar9003_hw_set11n_aggr_first(struct ath_hw *ah, void *ds, u32 aggrLen) { +#define FIRST_DESC_NDELIMS 60 struct ar9003_txc *ads = (struct ar9003_txc *) ds; ads->ctl12 |= (AR_IsAggr | AR_MoreAggr); - ads->ctl17 &= ~AR_AggrLen; - ads->ctl17 |= SM(aggrLen, AR_AggrLen); + if (ah->ent_mode & AR_ENT_OTP_MPSD) { + u32 ctl17, ndelim; + /* + * Add delimiter when using RTS/CTS with aggregation + * and non enterprise AR9003 card + */ + ctl17 = ads->ctl17; + ndelim = MS(ctl17, AR_PadDelim); + + if (ndelim < FIRST_DESC_NDELIMS) { + aggrLen += (FIRST_DESC_NDELIMS - ndelim) * 4; + ndelim = FIRST_DESC_NDELIMS; + } + + ctl17 &= ~AR_AggrLen; + ctl17 |= SM(aggrLen, AR_AggrLen); + + ctl17 &= ~AR_PadDelim; + ctl17 |= SM(ndelim, AR_PadDelim); + + ads->ctl17 = ctl17; + } else { + ads->ctl17 &= ~AR_AggrLen; + ads->ctl17 |= SM(aggrLen, AR_AggrLen); + } } static void ar9003_hw_set11n_aggr_middle(struct ath_hw *ah, void *ds, |