[PATCH 06/13] wifi: mt76: add EHT rate stats for ethtool

[Shayne Chen (陳軒丞)]

On Wed, 2023-01-18 at 17:13 +0100, Lorenzo Bianconi wrote:
> > Add support to get EHT rate stats from ethtool.
> > This is the preliminary patch to add EHT support for mt7996.
> > 
> > Signed-off-by: Shayne Chen <shayne.chen at mediatek.com>
> > ---
> >  drivers/net/wireless/mediatek/mt76/mt76.h        | 2 +-
> >  drivers/net/wireless/mediatek/mt76/mt7996/main.c | 6 ++++++
> >  2 files changed, 7 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h
> > b/drivers/net/wireless/mediatek/mt76/mt76.h
> > index b3fd3abfdd9f..3d3c68b9e1cf 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt76.h
> > +++ b/drivers/net/wireless/mediatek/mt76/mt76.h
> > @@ -272,7 +272,7 @@ enum mt76_phy_type {
> >  
> >  struct mt76_sta_stats {
> >  	u64 tx_mode[__MT_PHY_TYPE_MAX];
> > -	u64 tx_bw[4];		/* 20, 40, 80, 160 */
> > +	u64 tx_bw[5];		/* 20, 40, 80, 160, 320 */
> 
> Hi Shayne,
> 
Hi Lorenzo,

> I think this change will break mt7915 ethtool support. In particular
> it will
> break tx_bw for loop in mt76_ethtool_worker().
> 
I'll fix this in v2 by adding an additional eht parameter to
mt76_ethtool_worker(), thanks.

Regards,
Shayne

> Regards,
> Lorenzo
> 
> >  	u64 tx_nss[4];		/* 1, 2, 3, 4 */
> >  	u64 tx_mcs[16];		/* mcs idx */
> >  	u64 tx_bytes;
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > index c423b052e4f4..9ea2e1198477 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
> > @@ -1084,10 +1084,14 @@ static const char
> > mt7996_gstrings_stats[][ETH_GSTRING_LEN] = {
> >  	"v_tx_mode_he_ext_su",
> >  	"v_tx_mode_he_tb",
> >  	"v_tx_mode_he_mu",
> > +	"v_tx_mode_eht_su",
> > +	"v_tx_mode_eht_trig",
> > +	"v_tx_mode_eht_mu",
> >  	"v_tx_bw_20",
> >  	"v_tx_bw_40",
> >  	"v_tx_bw_80",
> >  	"v_tx_bw_160",
> > +	"v_tx_bw_320",
> >  	"v_tx_mcs_0",
> >  	"v_tx_mcs_1",
> >  	"v_tx_mcs_2",
> > @@ -1100,6 +1104,8 @@ static const char
> > mt7996_gstrings_stats[][ETH_GSTRING_LEN] = {
> >  	"v_tx_mcs_9",
> >  	"v_tx_mcs_10",
> >  	"v_tx_mcs_11",
> > +	"v_tx_mcs_12",
> > +	"v_tx_mcs_13",
> >  };
> >  
> >  #define MT7996_SSTATS_LEN ARRAY_SIZE(mt7996_gstrings_stats)
> > -- 
> > 2.25.1
> >