On Thu, Nov 08, 2018 at 05:02:14PM +0100, Felix Fietkau wrote: > >> > + if (changed & BSS_CHANGED_BASIC_RATES && > >> > + vif->type == NL80211_IFTYPE_STATION) { > >> > + mt76_wr(dev, MT_LEGACY_BASIC_RATE, info->basic_rates);
It's a bit hard to interpret how vendor driver set LEGACY_BIT_RATE in MlmeUpdateTxRates(). It seems to always enable bits for OFDM6/OFDM12/OFDM24 (bitmask 0x150) or maybe just do this for 5GHz, I'm not sure. Need more investigation on this. > >> > + mt76_wr(dev, MT_VHT_HT_FBK_CFG0, 0x65432100); > >> > + mt76_wr(dev, MT_VHT_HT_FBK_CFG1, 0xedcba980); > >> > + mt76_wr(dev, MT_LG_FBK_CFG0, 0xedcba988); > >> > + if (is_mt76x2(dev)) > >> > + mt76_wr(dev, MT_LG_FBK_CFG1, 0x87872100); > >> > + else > >> > + mt76_wr(dev, MT_LG_FBK_CFG1, 0x00872100); > >> > + } > >> > + > >> > >> since these values are constant, why not put them init_vals? > > > > I wanted them to be used only in STA mode like vendor driver does. > > However if we will have AP+STA , we still will configure them, > > so better to configure them anyway and put in init_vals . > Yes, I think we should put them in initvals. Also, I think we should > keep the values the shared between mt76x0 and mt76x2. > > For MT_LG_FBK_CFG1 there is no need to make a distinction between 76x2 > and 76x0, because 76x0 will simply ignore the upper values (they apply > to 2SS transmission only). > Also, I don't think MT_VHT_HT_FBK_CFG1 even gets used on mt76x0, because > it is for 2SS rates only. However, the value in there seems more useful > than the one we currently use on mt76x2, because it allows fallback from > 2SS MCS0 to 1SS MCS0. > The contents of MT_LG_FBK_CFG0 also match the default initialization > values documented in the 7612E datasheet. > > I don't think there is any meaningful difference between the 76x2 and > the 76x0 MAC except for the missing 2SS support. Since there are different initvals tables for mt76x2 and mt76x0, I use different values of MT_LG_FBK_CFG1. Will post a patches soon, please comment there, if something is not correct. Thanks Stanislaw