| Message ID | 4e5cff1c538cbd9ecca171e0e4d6fddd87c3dfa0.1675893838.git.ryder.lee@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/2] wifi: mac80211: add EHT MU-MIMO related flags in ieee80211_bss_conf | expand |
On Thu, 2023-02-09 at 06:09 +0800, Ryder Lee wrote: > This is utilized to pass LDPC configurations from user space (i.e. hostap) to driver. again, hostapd why do we need this? > + * @ht_ldpc: in AP mode, indicates interface owns HT LDPC capability. > + * @vht_ldpc: in AP mode, indicates interface owns VHT LDPC capability. > + * @he_ldpc: in AP mode, indicates interface owns HE LDPC capability. what do you mean by "owns" the capability? Has? Uses it? > diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c > index 6bf1cdf254f6..a080010da8fb 100644 > --- a/net/mac80211/cfg.c > +++ b/net/mac80211/cfg.c > @@ -1252,7 +1252,16 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, > prev_beacon_int = link_conf->beacon_int; > link_conf->beacon_int = params->beacon_interval; > > + if (params->ht_cap) { > + link_conf->ht_ldpc = > + params->ht_cap->cap_info & > + cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); > + } No need for braces. johannes
On Wed, 2023-02-15 at 18:43 +0100, Johannes Berg wrote: > On Thu, 2023-02-09 at 06:09 +0800, Ryder Lee wrote: > > This is utilized to pass LDPC configurations from user space (i.e. > > hostap) to driver. > > again, hostapd > > why do we need this? > User can configure hostapd.conf "# LDPC coding capability: [LDPC] = supported" to decide if an AP mode has LDPC caps. They are actaully long-standing configurations of hostapd, but have never been propegated to kernel. One of our use cases is for certification setup. > > + * @ht_ldpc: in AP mode, indicates interface owns HT LDPC > > capability. > > + * @vht_ldpc: in AP mode, indicates interface owns VHT LDPC > > capability. > > + * @he_ldpc: in AP mode, indicates interface owns HE LDPC > > capability. > > what do you mean by "owns" the capability? Has? Uses it? Copy-and-pasted from @mu_mimo_owner, but indeed, "has" is better. Will fix. > > diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c > > index 6bf1cdf254f6..a080010da8fb 100644 > > --- a/net/mac80211/cfg.c > > +++ b/net/mac80211/cfg.c > > @@ -1252,7 +1252,16 @@ static int ieee80211_start_ap(struct wiphy > > *wiphy, struct net_device *dev, > > prev_beacon_int = link_conf->beacon_int; > > link_conf->beacon_int = params->beacon_interval; > > > > + if (params->ht_cap) { > > + link_conf->ht_ldpc = > > + params->ht_cap->cap_info & > > + cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODIN > > G); > > + } > > No need for braces. > OK. Ryder
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 943f2aec6042..76a12bec71d5 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -653,6 +653,9 @@ struct ieee80211_fils_discovery { * write-protected by sdata_lock and local->mtx so holding either is fine * for read access. * @color_change_color: the bss color that will be used after the change. + * @ht_ldpc: in AP mode, indicates interface owns HT LDPC capability. + * @vht_ldpc: in AP mode, indicates interface owns VHT LDPC capability. + * @he_ldpc: in AP mode, indicates interface owns HE LDPC capability. * @vht_su_beamformer: in AP mode, does this BSS support operation as an VHT SU * beamformer * @vht_su_beamformee: in AP mode, does this BSS support operation as an VHT SU @@ -750,6 +753,9 @@ struct ieee80211_bss_conf { bool color_change_active; u8 color_change_color; + bool ht_ldpc; + bool vht_ldpc; + bool he_ldpc; bool vht_su_beamformer; bool vht_su_beamformee; bool vht_mu_beamformer; diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 6bf1cdf254f6..a080010da8fb 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1252,7 +1252,16 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, prev_beacon_int = link_conf->beacon_int; link_conf->beacon_int = params->beacon_interval; + if (params->ht_cap) { + link_conf->ht_ldpc = + params->ht_cap->cap_info & + cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); + } + if (params->vht_cap) { + link_conf->vht_ldpc = + params->vht_cap->vht_cap_info & + cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); link_conf->vht_su_beamformer = params->vht_cap->vht_cap_info & cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); @@ -1282,6 +1291,9 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, } if (params->he_cap) { + link_conf->he_ldpc = + params->he_cap->phy_cap_info[1] & + IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; link_conf->he_su_beamformer = params->he_cap->phy_cap_info[3] & IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
This is utilized to pass LDPC configurations from user space (i.e. hostap) to driver. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> --- include/net/mac80211.h | 6 ++++++ net/mac80211/cfg.c | 12 ++++++++++++ 2 files changed, 18 insertions(+)