From patchwork Sat Aug 7 04:08:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryder Lee X-Patchwork-Id: 493568 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14F98C432BE for ; Sat, 7 Aug 2021 04:19:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D424F61050 for ; Sat, 7 Aug 2021 04:19:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229651AbhHGEJP (ORCPT ); Sat, 7 Aug 2021 00:09:15 -0400 Received: from mailgw01.mediatek.com ([60.244.123.138]:59160 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S229631AbhHGEJO (ORCPT ); Sat, 7 Aug 2021 00:09:14 -0400 X-UUID: 0bcd7fafcbfc4b55a4f8b61042c0e795-20210807 X-UUID: 0bcd7fafcbfc4b55a4f8b61042c0e795-20210807 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 984609346; Sat, 07 Aug 2021 12:08:54 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 7 Aug 2021 12:08:53 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 7 Aug 2021 12:08:53 +0800 From: Ryder Lee To: Felix Fietkau CC: Lorenzo Bianconi , Shayne Chen , Evelyn Tsai , , , Ryder Lee Subject: [PATCH v2] mt76: mt7915: introduce mt7915_mcu_beacon_check_caps() Date: Sat, 7 Aug 2021 12:08:51 +0800 Message-ID: <05d2df887a583a1ab694f2364520c275bfea9e38.1628306758.git.ryder.lee@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <77372f644903053e09d671325c0cd44cf75e14ac.1628306758.git.ryder.lee@mediatek.com> References: <77372f644903053e09d671325c0cd44cf75e14ac.1628306758.git.ryder.lee@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Strictly check beacon IEs which could be changed by user configuraion, so driver should determinate capability in practice by comparing IEs and hardware capability before association. Co-developed-by: Evelyn Tsai Signed-off-by: Evelyn Tsai Signed-off-by: Ryder Lee --- v2 - clean up codes. --- .../net/wireless/mediatek/mt76/mt7915/main.c | 1 + .../net/wireless/mediatek/mt76/mt7915/mcu.c | 150 ++++++++++++++---- .../wireless/mediatek/mt76/mt7915/mt7915.h | 13 ++ 3 files changed, 130 insertions(+), 34 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c index fc2110dc4a75..20b47ac33083 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c @@ -251,6 +251,7 @@ static int mt7915_add_interface(struct ieee80211_hw *hw, vif->offload_flags |= IEEE80211_OFFLOAD_ENCAP_4ADDR; mt7915_init_bitrate_mask(vif); + memset(&mvif->cap, 1, sizeof(struct mt7915_vif_cap)); out: mutex_unlock(&dev->mt76.mutex); diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index 59731c1831ea..030d6fba59e9 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -1488,8 +1488,10 @@ mt7915_mcu_sta_uapsd_tlv(struct sk_buff *skb, struct ieee80211_sta *sta, } static void -mt7915_mcu_sta_muru_tlv(struct sk_buff *skb, struct ieee80211_sta *sta) +mt7915_mcu_sta_muru_tlv(struct sk_buff *skb, struct ieee80211_sta *sta, + struct ieee80211_vif *vif) { + struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; struct ieee80211_sta_he_cap *he_cap = &sta->he_cap; struct ieee80211_he_cap_elem *elem = &he_cap->he_cap_elem; struct sta_rec_muru *muru; @@ -1499,7 +1501,14 @@ mt7915_mcu_sta_muru_tlv(struct sk_buff *skb, struct ieee80211_sta *sta) muru = (struct sta_rec_muru *)tlv; muru->cfg.ofdma_dl_en = true; - muru->cfg.mimo_dl_en = true; + + /* A non-AP HE station must support MU beamformee */ + if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.he_support) + muru->cfg.mimo_dl_en = true; + else + muru->cfg.mimo_dl_en = mvif->cap.he_mu_ebfer || + mvif->cap.vht_mu_ebfer || + mvif->cap.vht_mu_ebfee; muru->ofdma_dl.punc_pream_rx = HE_PHY(CAP1_PREAMBLE_PUNC_RX_MASK, elem->phy_cap_info[1]); @@ -1620,9 +1629,11 @@ mt7915_mcu_wtbl_smps_tlv(struct sk_buff *skb, struct ieee80211_sta *sta, } static void -mt7915_mcu_wtbl_ht_tlv(struct sk_buff *skb, struct ieee80211_sta *sta, - void *sta_wtbl, void *wtbl_tlv) +mt7915_mcu_wtbl_ht_tlv(struct sk_buff *skb, struct ieee80211_vif *vif, + struct ieee80211_sta *sta, void *sta_wtbl, + void *wtbl_tlv) { + struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; struct wtbl_ht *ht = NULL; struct tlv *tlv; @@ -1631,7 +1642,8 @@ mt7915_mcu_wtbl_ht_tlv(struct sk_buff *skb, struct ieee80211_sta *sta, tlv = mt7915_mcu_add_nested_tlv(skb, WTBL_HT, sizeof(*ht), wtbl_tlv, sta_wtbl); ht = (struct wtbl_ht *)tlv; - ht->ldpc = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING); + ht->ldpc = mvif->cap.ht_ldpc && + (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING); ht->af = sta->ht_cap.ampdu_factor; ht->mm = sta->ht_cap.ampdu_density; ht->ht = true; @@ -1645,7 +1657,8 @@ mt7915_mcu_wtbl_ht_tlv(struct sk_buff *skb, struct ieee80211_sta *sta, tlv = mt7915_mcu_add_nested_tlv(skb, WTBL_VHT, sizeof(*vht), wtbl_tlv, sta_wtbl); vht = (struct wtbl_vht *)tlv; - vht->ldpc = !!(sta->vht_cap.cap & IEEE80211_VHT_CAP_RXLDPC); + vht->ldpc = mvif->cap.vht_ldpc && + (sta->vht_cap.cap & IEEE80211_VHT_CAP_RXLDPC); vht->vht = true; af = FIELD_GET(IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK, @@ -1968,7 +1981,7 @@ mt7915_mcu_add_txbf(struct mt7915_dev *dev, struct ieee80211_vif *vif, struct mt7915_phy *phy; struct sk_buff *skb; int r, len; - bool ebfee = 0, ebf = 0; + bool ebfee = false, ebfer = false; if (vif->type != NL80211_IFTYPE_STATION && vif->type != NL80211_IFTYPE_AP) @@ -1977,42 +1990,32 @@ mt7915_mcu_add_txbf(struct mt7915_dev *dev, struct ieee80211_vif *vif, phy = mvif->band_idx ? mt7915_ext_phy(dev) : &dev->phy; if (sta->he_cap.has_he) { - struct ieee80211_he_cap_elem *pe; - const struct ieee80211_he_cap_elem *ve; - const struct ieee80211_sta_he_cap *vc; - - pe = &sta->he_cap.he_cap_elem; - vc = mt7915_get_he_phy_cap(phy, vif); - ve = &vc->he_cap_elem; - - ebfee = !!(HE_PHY(CAP3_SU_BEAMFORMER, pe->phy_cap_info[3]) && - HE_PHY(CAP4_SU_BEAMFORMEE, ve->phy_cap_info[4])); - ebf = !!(HE_PHY(CAP3_SU_BEAMFORMER, ve->phy_cap_info[3]) && - HE_PHY(CAP4_SU_BEAMFORMEE, pe->phy_cap_info[4])); - } else if (sta->vht_cap.vht_supported) { - struct ieee80211_sta_vht_cap *pc; - struct ieee80211_sta_vht_cap *vc; + struct ieee80211_he_cap_elem *pe = &sta->he_cap.he_cap_elem; - pc = &sta->vht_cap; - vc = &phy->mt76->sband_5g.sband.vht_cap; + ebfee = mvif->cap.he_su_ebfee && + HE_PHY(CAP3_SU_BEAMFORMER, pe->phy_cap_info[3]); + ebfer = mvif->cap.he_su_ebfer && + HE_PHY(CAP4_SU_BEAMFORMEE, pe->phy_cap_info[4]); + } else if (sta->vht_cap.vht_supported) { + u32 cap = sta->vht_cap.cap; - ebfee = !!((pc->cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE) && - (vc->cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)); - ebf = !!((vc->cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE) && - (pc->cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)); + ebfee = mvif->cap.vht_su_ebfee && + (cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); + ebfer = mvif->cap.vht_su_ebfer && + (cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); } /* must keep each tag independent */ /* starec bf */ - if (ebf || dev->ibf) { + if (ebfer || dev->ibf) { len = sizeof(struct sta_req_hdr) + sizeof(struct sta_rec_bf); skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta, len); if (IS_ERR(skb)) return PTR_ERR(skb); - mt7915_mcu_sta_bfer_tlv(skb, sta, vif, phy, enable, ebf); + mt7915_mcu_sta_bfer_tlv(skb, sta, vif, phy, enable, ebfer); r = mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_EXT_CMD(STA_REC_UPDATE), true); @@ -2096,7 +2099,8 @@ mt7915_mcu_sta_rate_ctrl_tlv(struct sk_buff *skb, struct mt7915_dev *dev, cap |= STA_CAP_TX_STBC; if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC) cap |= STA_CAP_RX_STBC; - if (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING) + if (mvif->cap.ht_ldpc && + (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING)) cap |= STA_CAP_LDPC; mt7915_mcu_set_sta_ht_mcs(sta, ra->ht_mcs, mcs_mask); @@ -2121,7 +2125,8 @@ mt7915_mcu_sta_rate_ctrl_tlv(struct sk_buff *skb, struct mt7915_dev *dev, cap |= STA_CAP_VHT_TX_STBC; if (sta->vht_cap.cap & IEEE80211_VHT_CAP_RXSTBC_1) cap |= STA_CAP_VHT_RX_STBC; - if (sta->vht_cap.cap & IEEE80211_VHT_CAP_RXLDPC) + if (mvif->cap.vht_ldpc && + (sta->vht_cap.cap & IEEE80211_VHT_CAP_RXLDPC)) cap |= STA_CAP_VHT_LDPC; mt7915_mcu_set_sta_vht_mcs(sta, ra->supp_vht_mcs, mcs_mask); @@ -2226,7 +2231,7 @@ mt7915_mcu_add_mu(struct mt7915_dev *dev, struct ieee80211_vif *vif, /* wait until TxBF and MU ready to update stare vht */ /* starec muru */ - mt7915_mcu_sta_muru_tlv(skb, sta); + mt7915_mcu_sta_muru_tlv(skb, sta, vif); /* starec vht */ mt7915_mcu_sta_vht_tlv(skb, sta); @@ -2285,7 +2290,7 @@ int mt7915_mcu_add_sta(struct mt7915_dev *dev, struct ieee80211_vif *vif, mt7915_mcu_wtbl_generic_tlv(skb, vif, sta, sta_wtbl, wtbl_hdr); mt7915_mcu_wtbl_hdr_trans_tlv(skb, vif, sta, sta_wtbl, wtbl_hdr); if (sta) - mt7915_mcu_wtbl_ht_tlv(skb, sta, sta_wtbl, wtbl_hdr); + mt7915_mcu_wtbl_ht_tlv(skb, vif, sta, sta_wtbl, wtbl_hdr); } return mt76_mcu_skb_send_msg(&dev->mt76, skb, @@ -2426,6 +2431,81 @@ mt7915_mcu_beacon_cont(struct mt7915_dev *dev, struct sk_buff *rskb, memcpy(buf + MT_TXD_SIZE, skb->data, skb->len); } +static void +mt7915_mcu_beacon_check_caps(struct mt7915_phy *phy, struct ieee80211_vif *vif, + struct sk_buff *skb) +{ + struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; + struct mt7915_vif_cap *vc = &mvif->cap; + const struct ieee80211_he_cap_elem *he; + const struct ieee80211_vht_cap *vht; + const struct ieee80211_ht_cap *ht; + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data; + const u8 *ie; + u32 len, bc; + + /* Check missing configuration options to allow AP mode in mac80211 + * to remain in sync with hostapd settings, and get a subset of + * beacon and hardware capabilities. + */ + if (WARN_ON_ONCE(skb->len <= (mgmt->u.beacon.variable - skb->data))) + return; + + len = skb->len - (mgmt->u.beacon.variable - skb->data); + + ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, mgmt->u.beacon.variable, + len); + if (ie && ie[1] >= sizeof(*ht)) { + ht = (void *)(ie + 2); + bc = le32_to_cpu(ht->cap_info); + + vc->ht_ldpc = !!(bc & IEEE80211_HT_CAP_LDPC_CODING); + } + + ie = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, mgmt->u.beacon.variable, + len); + if (ie && ie[1] >= sizeof(*vht)) { + u32 pc = phy->mt76->sband_5g.sband.vht_cap.cap; + + vht = (void *)(ie + 2); + bc = le32_to_cpu(vht->vht_cap_info); + + vc->vht_ldpc = !!(bc & IEEE80211_VHT_CAP_RXLDPC); + vc->vht_su_ebfer = + (bc & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE) && + (pc & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); + vc->vht_su_ebfee = + (bc & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) && + (pc & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); + vc->vht_mu_ebfer = + (bc & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE) && + (pc & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); + vc->vht_mu_ebfee = + (bc & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) && + (pc & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); + } + + ie = cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, + mgmt->u.beacon.variable, len); + if (ie && ie[1] >= sizeof(*he) + 1) { + const struct ieee80211_sta_he_cap *pc = + mt7915_get_he_phy_cap(phy, vif); + const struct ieee80211_he_cap_elem *pe = &pc->he_cap_elem; + + he = (void *)(ie + 3); + + vc->he_su_ebfer = + HE_PHY(CAP3_SU_BEAMFORMER, he->phy_cap_info[3]) && + HE_PHY(CAP3_SU_BEAMFORMER, pe->phy_cap_info[3]); + vc->he_su_ebfee = + HE_PHY(CAP4_SU_BEAMFORMEE, he->phy_cap_info[4]) && + HE_PHY(CAP4_SU_BEAMFORMEE, pe->phy_cap_info[4]); + vc->he_mu_ebfer = + HE_PHY(CAP4_MU_BEAMFORMER, he->phy_cap_info[4]) && + HE_PHY(CAP4_MU_BEAMFORMER, pe->phy_cap_info[4]); + } +} + int mt7915_mcu_add_beacon(struct ieee80211_hw *hw, struct ieee80211_vif *vif, bool en) { @@ -2466,6 +2546,8 @@ int mt7915_mcu_add_beacon(struct ieee80211_hw *hw, info->hw_queue |= MT_TX_HW_QUEUE_EXT_PHY; } + mt7915_mcu_beacon_check_caps(phy, vif, skb); + /* TODO: subtag - bss color count & 11v MBSSID */ mt7915_mcu_beacon_csa(rskb, skb, bcn, &offs); mt7915_mcu_beacon_cont(dev, rskb, skb, bcn, &offs); diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h index cc74dd2c2c72..1f5065ed6a59 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h @@ -83,12 +83,25 @@ struct mt7915_sta { struct mt7915_sta_key_conf bip; }; +struct mt7915_vif_cap { + bool ht_ldpc:1; + bool vht_ldpc:1; + bool vht_su_ebfer:1; + bool vht_su_ebfee:1; + bool vht_mu_ebfer:1; + bool vht_mu_ebfee:1; + bool he_su_ebfer:1; + bool he_su_ebfee:1; + bool he_mu_ebfer:1; +}; + struct mt7915_vif { u16 idx; u8 omac_idx; u8 band_idx; u8 wmm_idx; + struct mt7915_vif_cap cap; struct mt7915_sta sta; struct mt7915_phy *phy;