From: Chad Monroe Date: Tue, 26 Nov 2024 20:40:49 +0000 (+0000) Subject: wifi: mt76: mt7996: exclude tx backoff time from airtime X-Git-Tag: block-6.14-20240131~28^2~20^2~4^2~76 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=1e232a9fb1937f6f8d6846845f34f7d0bb799084;p=linux-block.git wifi: mt76: mt7996: exclude tx backoff time from airtime This helps to make STA airtime counters more accurate. Signed-off-by: Chad Monroe Suggested-by: Ryder Lee Link: https://patch.msgid.link/88821d8f08e2715927939b35e630a06171962636.1732653612.git.chad@monroe.io Signed-off-by: Felix Fietkau --- diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c index 8cfb122b48ac..260cd1c34c64 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c @@ -457,6 +457,10 @@ mt7996_mac_init_band(struct mt7996_dev *dev, u8 band) mt76_clear(dev, MT_WF_RMAC_MIB_AIRTIME4(band), MT_WF_RMAC_MIB_QOS23_BACKOFF); + /* clear backoff time for Tx duration */ + mt76_clear(dev, MT_WTBLOFF_ACR(band), + MT_WTBLOFF_ADM_BACKOFFTIME); + /* clear backoff time and set software compensation for OBSS time */ mask = MT_WF_RMAC_MIB_OBSS_BACKOFF | MT_WF_RMAC_MIB_ED_OFFSET; set = FIELD_PREP(MT_WF_RMAC_MIB_OBSS_BACKOFF, 0) | diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h index 06e307b5b02e..1876a968c92d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h @@ -175,6 +175,9 @@ enum offs_rev { #define MT_WTBLOFF_RSCR_RCPI_MODE GENMASK(31, 30) #define MT_WTBLOFF_RSCR_RCPI_PARAM GENMASK(25, 24) +#define MT_WTBLOFF_ACR(_band) MT_WTBLOFF(_band, 0x010) +#define MT_WTBLOFF_ADM_BACKOFFTIME BIT(29) + /* ETBF: band 0(0x820ea000), band 1(0x820fa000), band 2(0x830ea000) */ #define MT_WF_ETBF_BASE(_band) __BASE(WF_ETBF_BASE, (_band)) #define MT_WF_ETBF(_band, ofs) (MT_WF_ETBF_BASE(_band) + (ofs))