From patchwork Tue May 28 11:49:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Crispin X-Patchwork-Id: 10964769 X-Patchwork-Delegate: johannes@sipsolutions.net Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2CE6516C1 for ; Tue, 28 May 2019 11:50:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1D5E027FA5 for ; Tue, 28 May 2019 11:50:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 099D5285B3; Tue, 28 May 2019 11:50:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 103C628420 for ; Tue, 28 May 2019 11:50:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726950AbfE1LuK (ORCPT ); Tue, 28 May 2019 07:50:10 -0400 Received: from nbd.name ([46.4.11.11]:55690 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726937AbfE1LuJ (ORCPT ); Tue, 28 May 2019 07:50:09 -0400 Received: from p5dcfb1b7.dip0.t-ipconnect.de ([93.207.177.183] helo=bertha.datto.lan) by ds12 with esmtpa (Exim 4.89) (envelope-from ) id 1hVacI-0005pk-At; Tue, 28 May 2019 13:50:06 +0200 From: John Crispin To: Johannes Berg Cc: linux-wireless@vger.kernel.org, ath11k@lists.infradead.org, John Crispin , Shashidhar Lakkavalli Subject: [PATCH V2 5/6] mac80211: allow setting spatial reuse parameters from bss_conf Date: Tue, 28 May 2019 13:49:51 +0200 Message-Id: <20190528114952.838-6-john@phrozen.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190528114952.838-1-john@phrozen.org> References: <20190528114952.838-1-john@phrozen.org> MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Store the OBSS PD parameters inside bss_conf when bringing up an AP and/or when a station connects to an AP. This allows the driver to configure the HW accordingly. Signed-off-by: Shashidhar Lakkavalli Signed-off-by: John Crispin --- include/net/cfg80211.h | 15 +++++++++++++ include/net/mac80211.h | 4 ++++ include/uapi/linux/nl80211.h | 27 +++++++++++++++++++++++ net/mac80211/cfg.c | 5 ++++- net/mac80211/he.c | 24 +++++++++++++++++++++ net/mac80211/ieee80211_i.h | 3 +++ net/mac80211/mlme.c | 1 + net/wireless/nl80211.c | 42 ++++++++++++++++++++++++++++++++++++ 8 files changed, 120 insertions(+), 1 deletion(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 044c519a008f..3f67f01b5f7a 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -249,6 +249,19 @@ struct ieee80211_rate { u16 hw_value, hw_value_short; }; +/** + * struct ieee80211_he_obss_pd - AP settings for spatial reuse + * + * @enable: is the feature enabled. + * @min_offset: minimal tx power offset an associated station shall use + * @max_offset: maximum tx power offset an associated station shall use + */ +struct ieee80211_he_obss_pd { + bool enable; + u32 min_offset; + u32 max_offset; +}; + /** * struct ieee80211_sta_ht_cap - STA's HT capabilities * @@ -878,6 +891,7 @@ enum cfg80211_ap_settings_flags { * @vht_required: stations must support VHT * @twt_responder: Enable Target Wait Time * @flags: flags, as defined in enum cfg80211_ap_settings_flags + * @he_obss_pd: OBSS Packet Detection settings */ struct cfg80211_ap_settings { struct cfg80211_chan_def chandef; @@ -905,6 +919,7 @@ struct cfg80211_ap_settings { bool ht_required, vht_required; bool twt_responder; u32 flags; + struct ieee80211_he_obss_pd he_obss_pd; }; /** diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 96359fd3d026..8391e1b4d80b 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -318,6 +318,7 @@ struct ieee80211_vif_chanctx_switch { * @BSS_CHANGED_FTM_RESPONDER: fime timing reasurement request responder * functionality changed for this BSS (AP mode). * @BSS_CHANGED_TWT: TWT status changed + * @BSS_CHANGED_HE_OBSS_PD: OBSS Packet Detection status changed. * */ enum ieee80211_bss_change { @@ -349,6 +350,7 @@ enum ieee80211_bss_change { BSS_CHANGED_MCAST_RATE = 1<<25, BSS_CHANGED_FTM_RESPONDER = 1<<26, BSS_CHANGED_TWT = 1<<27, + BSS_CHANGED_HE_OBSS_PD = 1<<28, /* when adding here, make sure to change ieee80211_reconfig */ }; @@ -604,6 +606,7 @@ struct ieee80211_ftm_responder_params { * @profile_periodicity: the least number of beacon frames need to be received * in order to discover all the nontransmitted BSSIDs in the set. * @he_operation: HE operation information of the AP we are connected to + * @he_obss_pd: OBSS Packet Detection parameters. */ struct ieee80211_bss_conf { const u8 *bssid; @@ -666,6 +669,7 @@ struct ieee80211_bss_conf { bool ema_ap; u8 profile_periodicity; struct ieee80211_he_operation he_operation; + struct ieee80211_he_obss_pd he_obss_pd; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 07d3f1949f96..78f3326ae0ea 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -2310,6 +2310,9 @@ enum nl80211_commands { * * @NL80211_ATTR_TWT_RESPONDER: Enable target wait time responder support. * + * @NL80211_ATTR_HE_OBSS_PD: nested attribute for OBSS Packet Detection + * functionality. + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -2763,6 +2766,8 @@ enum nl80211_attrs { NL80211_ATTR_TWT_RESPONDER, + NL80211_ATTR_HE_OBSS_PD, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -6390,4 +6395,26 @@ enum nl80211_peer_measurement_ftm_resp { NL80211_PMSR_FTM_RESP_ATTR_MAX = NUM_NL80211_PMSR_FTM_RESP_ATTR - 1 }; +/** + * enum nl80211_he_spr - spatial reuse attributes + * @__NL80211_HE_OBSS_PD_ATTR_INVALID: Invalid + * + * @NL80211_ATTR_HE_OBSS_PD_MIN_OFFSET: the OBSS PD minimum tx power offset. + * @NL80211_ATTR_HE_OBSS_PD_MAX_OFFSET: the OBSS PD maximum tx power offset. + * + * @__NL80211_HE_OBSS_PD_ATTR_LAST: Internal + * @NL80211_HE_OBSS_PD_ATTR_MAX: highest spiatl reuse attribute. + */ +enum nl80211_he_spr_attributes { + __NL80211_HE_OBSS_PD_ATTR_INVALID, + + NL80211_ATTR_HE_OBSS_PD_MIN_OFFSET, + NL80211_ATTR_HE_OBSS_PD_MAX_OFFSET, + + /* keep last */ + __NL80211_ATTR_HE_OBSS_PD_LAST, + NL80211_HE_OBSS_PD_ATTR_MAX = __NL80211_ATTR_HE_OBSS_PD_LAST - 1, +}; + + #endif /* __LINUX_NL80211_H */ diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 8be2f32fedfc..742b62187a4c 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -940,7 +940,8 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS | BSS_CHANGED_TXPOWER | - BSS_CHANGED_TWT; + BSS_CHANGED_TWT | + BSS_CHANGED_HE_OBSS_PD; int err; int prev_beacon_int; @@ -1011,6 +1012,8 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, sdata->vif.bss_conf.enable_beacon = true; sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; sdata->vif.bss_conf.twt_responder = params->twt_responder; + memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd, + sizeof(struct ieee80211_he_obss_pd)); sdata->vif.bss_conf.ssid_len = params->ssid_len; if (params->ssid_len) diff --git a/net/mac80211/he.c b/net/mac80211/he.c index 2d7a885bd531..5dd8c131cd19 100644 --- a/net/mac80211/he.c +++ b/net/mac80211/he.c @@ -67,3 +67,27 @@ ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, } memcpy(he_operation, he_op_ie_elem, sizeof(*he_operation)); } + +void +ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, + const struct ieee80211_he_spr *he_spr_ie_elem) +{ + struct ieee80211_he_obss_pd *he_obss_pd = + &vif->bss_conf.he_obss_pd; + const u8 *data = he_spr_ie_elem->optional; + + memset(he_obss_pd, 0, sizeof(*he_obss_pd)); + + if (!he_spr_ie_elem) + return; + + if (he_spr_ie_elem->he_sr_control & + IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT) + data++; + if (he_spr_ie_elem->he_sr_control & + IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT) { + he_obss_pd->max_offset = *data++; + he_obss_pd->min_offset = *data++; + he_obss_pd->enable = true; + } +} diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 0f0d0e1ac91c..b3d0fa3ae814 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1870,6 +1870,9 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, struct ieee80211_supported_band *sband, const u8 *he_cap_ie, u8 he_cap_len, struct sta_info *sta); +void +ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, + const struct ieee80211_he_spr *he_spr_ie_elem); void ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 32309f13fcb1..632c522cad0e 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3377,6 +3377,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, bss_conf->uora_ocw_range = elems.uora_element[0]; ieee80211_he_op_ie_to_bss_conf(&sdata->vif, elems.he_operation); + ieee80211_he_spr_ie_to_bss_conf(&sdata->vif, elems.he_spr); /* TODO: OPEN: what happens if BSS color disable is set? */ } diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index b4dbb6b56853..266636ce3803 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -542,6 +542,7 @@ const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { NLA_POLICY_NESTED(nl80211_pmsr_attr_policy), [NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1), [NL80211_ATTR_TWT_RESPONDER] = { .type = NLA_FLAG }, + [NL80211_ATTR_HE_OBSS_PD] = { .type = NLA_NESTED }, }; /* policy for the key attributes */ @@ -4253,6 +4254,40 @@ static int nl80211_parse_beacon(struct cfg80211_registered_device *rdev, return 0; } +static const struct nla_policy + he_spr_policy[NL80211_HE_OBSS_PD_ATTR_MAX + 1] = { + [NL80211_ATTR_HE_OBSS_PD_MIN_OFFSET] = { .type = NLA_U32 }, + [NL80211_ATTR_HE_OBSS_PD_MAX_OFFSET] = { .type = NLA_U32 }, +}; + +static int nl80211_parse_he_obss_pd(struct nlattr *attrs, + struct ieee80211_he_obss_pd *he_obss_pd) +{ + struct nlattr *tb[NL80211_HE_OBSS_PD_ATTR_MAX + 1]; + int err; + + err = nla_parse_nested(tb, NL80211_HE_OBSS_PD_ATTR_MAX, attrs, + he_spr_policy, NULL); + if (err) + return err; + + if (!tb[NL80211_ATTR_HE_OBSS_PD_MIN_OFFSET] || + !tb[NL80211_ATTR_HE_OBSS_PD_MAX_OFFSET]) + return -EINVAL; + + he_obss_pd->min_offset = + nla_get_u32(tb[NL80211_ATTR_HE_OBSS_PD_MIN_OFFSET]); + he_obss_pd->max_offset = + nla_get_u32(tb[NL80211_ATTR_HE_OBSS_PD_MAX_OFFSET]); + + if (he_obss_pd->min_offset >= he_obss_pd->max_offset) + return -EINVAL; + + he_obss_pd->enable = true; + + return 0; +} + static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params, const u8 *rates) { @@ -4536,6 +4571,13 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) params.twt_responder = nla_get_flag(info->attrs[NL80211_ATTR_TWT_RESPONDER]); + if (info->attrs[NL80211_ATTR_HE_OBSS_PD]) { + err = nl80211_parse_he_obss_pd(info->attrs[NL80211_ATTR_HE_OBSS_PD], + ¶ms.he_obss_pd); + if (err) + return err; + } + nl80211_calculate_ap_params(¶ms); if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])