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ath9k: use one shot read in ath9k_hw_update_mibstats

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this will reduce some overhead on usb bus.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Oleksij Rempel 2015-03-22 19:29:53 +01:00 committed by Kalle Valo
parent 03822782e8
commit 9c05babd93
1 changed files with 15 additions and 5 deletions
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20
drivers/net/wireless/ath/ath9k/ani.c
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@ -107,11 +107,21 @@ static const struct ani_cck_level_entry cck_level_table[] = {
static void ath9k_hw_update_mibstats(struct ath_hw *ah,
struct ath9k_mib_stats *stats)
{
stats->ackrcv_bad += REG_READ(ah, AR_ACK_FAIL);
stats->rts_bad += REG_READ(ah, AR_RTS_FAIL);
stats->fcs_bad += REG_READ(ah, AR_FCS_FAIL);
stats->rts_good += REG_READ(ah, AR_RTS_OK);
stats->beacons += REG_READ(ah, AR_BEACON_CNT);
u32 addr[5] = {AR_RTS_OK, AR_RTS_FAIL, AR_ACK_FAIL,
AR_FCS_FAIL, AR_BEACON_CNT};
u32 data[5];
REG_READ_MULTI(ah, &addr[0], &data[0], 5);
/* AR_RTS_OK */
stats->rts_good += data[0];
/* AR_RTS_FAIL */
stats->rts_bad += data[1];
/* AR_ACK_FAIL */
stats->ackrcv_bad += data[2];
/* AR_FCS_FAIL */
stats->fcs_bad += data[3];
/* AR_BEACON_CNT */
stats->beacons += data[4];
}
static void ath9k_ani_restart(struct ath_hw *ah)