From patchwork Wed Jul 21 17:36:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jouni Malinen X-Patchwork-Id: 483686 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 B4885C12002 for ; Wed, 21 Jul 2021 17:37:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8F9DD6023B for ; Wed, 21 Jul 2021 17:37:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229961AbhGUQ4f (ORCPT ); Wed, 21 Jul 2021 12:56:35 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:31197 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229895AbhGUQ4f (ORCPT ); Wed, 21 Jul 2021 12:56:35 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1626889031; h=Content-Transfer-Encoding: MIME-Version: Message-Id: Date: Subject: Cc: To: From: Sender; bh=d+3K8Rh/ZN2RkI4rs/cFatBAfvEApLmsIaV+mOawdJM=; b=k75yD6fQg3XH+N8dDPDHjnWyIPRiVa1T+hjCQP2mj72O+GAaIqbIVEfYW/MmoUSDDqNHhqNC DLMJm4gnndCIc9kZ+sIn4zTzp9QgKJafOLUbpoEf4Vbf2pYUXLCTNG/mnwMMkPrYAsm7rRGU sKnUkY/D/9mRESn/rHG1TkJlKnA= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n06.prod.us-east-1.postgun.com with SMTP id 60f85b334815712f3ad9d3a6 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 21 Jul 2021 17:36:51 GMT Sender: jouni=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id C4828C43460; Wed, 21 Jul 2021 17:36:50 +0000 (UTC) Received: from jouni.codeaurora.org (85-76-67-217-nat.elisa-mobile.fi [85.76.67.217]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jouni) by smtp.codeaurora.org (Postfix) with ESMTPSA id 71C64C433F1; Wed, 21 Jul 2021 17:36:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 71C64C433F1 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=jouni@codeaurora.org From: Jouni Malinen To: Kalle Valo Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, Miles Hu , Aloka Dixit , Lavanya Suresh , Pradeep Chitrapu , Venkateswara Naralasetty , Jouni Malinen Subject: [PATCH 1/2] ath11k: add support for setting fixed HE rate/gi/ltf Date: Wed, 21 Jul 2021 20:36:14 +0300 Message-Id: <20210721173615.75637-1-jouni@codeaurora.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Miles Hu Support setting fixed HE rate/gi/ltf values that we are now able to send to the kernel using nl80211. The added code is reusing parts of the existing code path already used for HT/VHT. The new helpers are symmetric to how we do it for HT/VHT. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00235-QCAHKSWPL_SILICONZ-1 Signed-off-by: Miles Hu Co-developed-by: Aloka Dixit Signed-off-by: Aloka Dixit Co-developed-by: Lavanya Suresh Signed-off-by: Lavanya Suresh Co-developed-by: Pradeep Chitrapu Signed-off-by: Pradeep Chitrapu Signed-off-by: Venkateswara Naralasetty Signed-off-by: Jouni Malinen --- drivers/net/wireless/ath/ath11k/mac.c | 586 ++++++++++++++++++++++++-- drivers/net/wireless/ath/ath11k/wmi.c | 4 +- drivers/net/wireless/ath/ath11k/wmi.h | 20 + 3 files changed, 570 insertions(+), 40 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index b9d4e8914482..4dcc1b377642 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -354,6 +354,18 @@ ath11k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) return 1; } +static u32 +ath11k_mac_max_he_nss(const u16 he_mcs_mask[NL80211_HE_NSS_MAX]) +{ + int nss; + + for (nss = NL80211_HE_NSS_MAX - 1; nss >= 0; nss--) + if (he_mcs_mask[nss]) + return nss + 1; + + return 1; +} + static u8 ath11k_parse_mpdudensity(u8 mpdudensity) { /* 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": @@ -1391,6 +1403,14 @@ static void ath11k_peer_assoc_h_ht(struct ath11k *ar, arg->peer_rate_caps |= WMI_HOST_RC_CW40_FLAG; } + /* As firmware handles this two flags (IEEE80211_HT_CAP_SGI_20 + * and IEEE80211_HT_CAP_SGI_40) for enabling SGI, we reset + * both flags if guard interval is Default GI + */ + if (arvif->bitrate_mask.control[band].gi == NL80211_TXRATE_DEFAULT_GI) + arg->peer_ht_caps &= ~(IEEE80211_HT_CAP_SGI_20 | + IEEE80211_HT_CAP_SGI_40); + if (arvif->bitrate_mask.control[band].gi != NL80211_TXRATE_FORCE_LGI) { if (ht_cap->cap & (IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40)) @@ -1514,10 +1534,11 @@ static void ath11k_peer_assoc_h_vht(struct ath11k *ar, struct ath11k_vif *arvif = (void *)vif->drv_priv; struct cfg80211_chan_def def; enum nl80211_band band; - const u16 *vht_mcs_mask; + u16 *vht_mcs_mask; u8 ampdu_factor; u8 max_nss, vht_mcs; - int i; + int i, vht_nss, nss_idx; + bool user_rate_valid = true; if (WARN_ON(ath11k_mac_vif_chan(vif, &def))) return; @@ -1560,6 +1581,24 @@ static void ath11k_peer_assoc_h_vht(struct ath11k *ar, if (sta->bandwidth == IEEE80211_STA_RX_BW_160) arg->bw_160 = true; + vht_nss = ath11k_mac_max_vht_nss(vht_mcs_mask); + + if (vht_nss > sta->rx_nss) { + user_rate_valid = false; + for (nss_idx = sta->rx_nss - 1; nss_idx >= 0; nss_idx--) { + if (vht_mcs_mask[nss_idx]) { + user_rate_valid = true; + break; + } + } + } + + if (!user_rate_valid) { + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "Setting vht range MCS value to peer supported nss:%d for peer %pM\n", + sta->rx_nss, sta->addr); + vht_mcs_mask[sta->rx_nss - 1] = vht_mcs_mask[vht_nss - 1]; + } + /* Calculate peer NSS capability from VHT capabilities if STA * supports VHT. */ @@ -1598,18 +1637,100 @@ static void ath11k_peer_assoc_h_vht(struct ath11k *ar, /* TODO: rxnss_override */ } +static int ath11k_mac_get_max_he_mcs_map(u16 mcs_map, int nss) +{ + switch ((mcs_map >> (2 * nss)) & 0x3) { + case IEEE80211_HE_MCS_SUPPORT_0_7: return BIT(8) - 1; + case IEEE80211_HE_MCS_SUPPORT_0_9: return BIT(10) - 1; + case IEEE80211_HE_MCS_SUPPORT_0_11: return BIT(12) - 1; + } + return 0; +} + +static u16 ath11k_peer_assoc_h_he_limit(u16 tx_mcs_set, + const u16 he_mcs_limit[NL80211_HE_NSS_MAX]) +{ + int idx_limit; + int nss; + u16 mcs_map; + u16 mcs; + + for (nss = 0; nss < NL80211_HE_NSS_MAX; nss++) { + mcs_map = ath11k_mac_get_max_he_mcs_map(tx_mcs_set, nss) & + he_mcs_limit[nss]; + + if (mcs_map) + idx_limit = fls(mcs_map) - 1; + else + idx_limit = -1; + + switch (idx_limit) { + case 0 ... 7: + mcs = IEEE80211_HE_MCS_SUPPORT_0_7; + break; + case 8: + case 9: + mcs = IEEE80211_HE_MCS_SUPPORT_0_9; + break; + case 10: + case 11: + mcs = IEEE80211_HE_MCS_SUPPORT_0_11; + break; + default: + WARN_ON(1); + fallthrough; + case -1: + mcs = IEEE80211_HE_MCS_NOT_SUPPORTED; + break; + } + + tx_mcs_set &= ~(0x3 << (nss * 2)); + tx_mcs_set |= mcs << (nss * 2); + } + + return tx_mcs_set; +} + +static bool +ath11k_peer_assoc_h_he_masked(const u16 he_mcs_mask[NL80211_HE_NSS_MAX]) +{ + int nss; + + for (nss = 0; nss < NL80211_HE_NSS_MAX; nss++) + if (he_mcs_mask[nss]) + return false; + + return true; +} + static void ath11k_peer_assoc_h_he(struct ath11k *ar, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct peer_assoc_params *arg) { + struct ath11k_vif *arvif = (void *)vif->drv_priv; + struct cfg80211_chan_def def; const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap; u8 ampdu_factor; - u16 v; + enum nl80211_band band; + u16 *he_mcs_mask; + u8 max_nss, he_mcs; + u16 he_tx_mcs = 0, v = 0; + int i, he_nss, nss_idx; + bool user_rate_valid = true; + + if (WARN_ON(ath11k_mac_vif_chan(vif, &def))) + return; if (!he_cap->has_he) return; + band = def.chan->band; + he_mcs_mask = arvif->bitrate_mask.control[band].he_mcs; + + if (ath11k_peer_assoc_h_he_masked(he_mcs_mask)) + return; + arg->he_flag = true; memcpy_and_pad(&arg->peer_he_cap_macinfo, @@ -1686,25 +1807,48 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, if (he_cap->he_cap_elem.mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_TWT_REQ) arg->twt_requester = true; + he_nss = ath11k_mac_max_he_nss(he_mcs_mask); + + if (he_nss > sta->rx_nss) { + user_rate_valid = false; + for (nss_idx = sta->rx_nss - 1; nss_idx >= 0; nss_idx--) { + if (he_mcs_mask[nss_idx]) { + user_rate_valid = true; + break; + } + } + } + + if (!user_rate_valid) { + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "Setting he range MCS value to peer supported nss:%d for peer %pM\n", + sta->rx_nss, sta->addr); + he_mcs_mask[sta->rx_nss - 1] = he_mcs_mask[he_nss - 1]; + } + switch (sta->bandwidth) { case IEEE80211_STA_RX_BW_160: if (he_cap->he_cap_elem.phy_cap_info[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) { v = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80p80); + v = ath11k_peer_assoc_h_he_limit(v, he_mcs_mask); arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80_80] = v; v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_80p80); arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80_80] = v; arg->peer_he_mcs_count++; + he_tx_mcs = v; } v = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160); arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_160] = v; v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_160); + v = ath11k_peer_assoc_h_he_limit(v, he_mcs_mask); arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_160] = v; arg->peer_he_mcs_count++; + if (!he_tx_mcs) + he_tx_mcs = v; fallthrough; default: @@ -1712,11 +1856,34 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80] = v; v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_80); + v = ath11k_peer_assoc_h_he_limit(v, he_mcs_mask); arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80] = v; arg->peer_he_mcs_count++; + if (!he_tx_mcs) + he_tx_mcs = v; break; } + + /* Calculate peer NSS capability from HE capabilities if STA + * supports HE. + */ + for (i = 0, max_nss = 0, he_mcs = 0; i < NL80211_HE_NSS_MAX; i++) { + he_mcs = he_tx_mcs >> (2 * i) & 3; + + /* In case of fixed rates, MCS Range in he_tx_mcs might have + * unsupported range, with he_mcs_mask set, so check either of them + * to find nss. + */ + if (he_mcs != IEEE80211_HE_MCS_NOT_SUPPORTED || + he_mcs_mask[i]) + max_nss = i + 1; + } + arg->peer_nss = min(sta->rx_nss, max_nss); + + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, + "mac he peer %pM nss %d mcs cnt %d\n", + sta->addr, arg->peer_nss, arg->peer_he_mcs_count); } static void ath11k_peer_assoc_h_smps(struct ieee80211_sta *sta, @@ -1919,6 +2086,7 @@ static void ath11k_peer_assoc_h_phymode(struct ath11k *ar, enum nl80211_band band; const u8 *ht_mcs_mask; const u16 *vht_mcs_mask; + const u16 *he_mcs_mask; enum wmi_phy_mode phymode = MODE_UNKNOWN; if (WARN_ON(ath11k_mac_vif_chan(vif, &def))) @@ -1927,10 +2095,12 @@ static void ath11k_peer_assoc_h_phymode(struct ath11k *ar, band = def.chan->band; ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs; vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs; + he_mcs_mask = arvif->bitrate_mask.control[band].he_mcs; switch (band) { case NL80211_BAND_2GHZ: - if (sta->he_cap.has_he) { + if (sta->he_cap.has_he && + !ath11k_peer_assoc_h_he_masked(he_mcs_mask)) { if (sta->bandwidth == IEEE80211_STA_RX_BW_80) phymode = MODE_11AX_HE80_2G; else if (sta->bandwidth == IEEE80211_STA_RX_BW_40) @@ -1958,7 +2128,8 @@ static void ath11k_peer_assoc_h_phymode(struct ath11k *ar, case NL80211_BAND_5GHZ: case NL80211_BAND_6GHZ: /* Check HE first */ - if (sta->he_cap.has_he) { + if (sta->he_cap.has_he && + !ath11k_peer_assoc_h_he_masked(he_mcs_mask)) { phymode = ath11k_mac_get_phymode_he(ar, sta); } else if (sta->vht_cap.vht_supported && !ath11k_peer_assoc_h_vht_masked(vht_mcs_mask)) { @@ -3184,6 +3355,20 @@ ath11k_mac_bitrate_mask_num_vht_rates(struct ath11k *ar, return num_rates; } +static int +ath11k_mac_bitrate_mask_num_he_rates(struct ath11k *ar, + enum nl80211_band band, + const struct cfg80211_bitrate_mask *mask) +{ + int num_rates = 0; + int i; + + for (i = 0; i < ARRAY_SIZE(mask->control[band].he_mcs); i++) + num_rates += hweight16(mask->control[band].he_mcs[i]); + + return num_rates; +} + static int ath11k_mac_set_peer_vht_fixed_rate(struct ath11k_vif *arvif, struct ieee80211_sta *sta, @@ -3212,6 +3397,10 @@ ath11k_mac_set_peer_vht_fixed_rate(struct ath11k_vif *arvif, return -EINVAL; } + /* Avoid updating invalid nss as fixed rate*/ + if (nss > sta->rx_nss) + return -EINVAL; + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "Setting Fixed VHT Rate for peer %pM. Device will not switch to any other selected rates", sta->addr); @@ -3230,6 +3419,57 @@ ath11k_mac_set_peer_vht_fixed_rate(struct ath11k_vif *arvif, return ret; } +static int +ath11k_mac_set_peer_he_fixed_rate(struct ath11k_vif *arvif, + struct ieee80211_sta *sta, + const struct cfg80211_bitrate_mask *mask, + enum nl80211_band band) +{ + struct ath11k *ar = arvif->ar; + u8 he_rate, nss; + u32 rate_code; + int ret, i; + + lockdep_assert_held(&ar->conf_mutex); + + nss = 0; + + for (i = 0; i < ARRAY_SIZE(mask->control[band].he_mcs); i++) { + if (hweight16(mask->control[band].he_mcs[i]) == 1) { + nss = i + 1; + he_rate = ffs(mask->control[band].he_mcs[i]) - 1; + } + } + + if (!nss) { + ath11k_warn(ar->ab, "No single HE Fixed rate found to set for %pM", + sta->addr); + return -EINVAL; + } + + /* Avoid updating invalid nss as fixed rate*/ + if (nss > sta->rx_nss) + return -EINVAL; + + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, + "Setting Fixed HE Rate for peer %pM. Device will not switch to any other selected rates", + sta->addr); + + rate_code = ATH11K_HW_RATE_CODE(he_rate, nss - 1, + WMI_RATE_PREAMBLE_HE); + + ret = ath11k_wmi_set_peer_param(ar, sta->addr, + arvif->vdev_id, + WMI_PEER_PARAM_FIXED_RATE, + rate_code); + if (ret) + ath11k_warn(ar->ab, + "failed to update STA %pM Fixed Rate %d: %d\n", + sta->addr, rate_code, ret); + + return ret; +} + static int ath11k_station_assoc(struct ath11k *ar, struct ieee80211_vif *vif, struct ieee80211_sta *sta, @@ -3241,7 +3481,7 @@ static int ath11k_station_assoc(struct ath11k *ar, struct cfg80211_chan_def def; enum nl80211_band band; struct cfg80211_bitrate_mask *mask; - u8 num_vht_rates; + u8 num_vht_rates, num_he_rates; lockdep_assert_held(&ar->conf_mutex); @@ -3267,9 +3507,10 @@ static int ath11k_station_assoc(struct ath11k *ar, } num_vht_rates = ath11k_mac_bitrate_mask_num_vht_rates(ar, band, mask); + num_he_rates = ath11k_mac_bitrate_mask_num_he_rates(ar, band, mask); - /* If single VHT rate is configured (by set_bitrate_mask()), - * peer_assoc will disable VHT. This is now enabled by a peer specific + /* If single VHT/HE rate is configured (by set_bitrate_mask()), + * peer_assoc will disable VHT/HE. This is now enabled by a peer specific * fixed param. * Note that all other rates and NSS will be disabled for this peer. */ @@ -3278,6 +3519,11 @@ static int ath11k_station_assoc(struct ath11k *ar, band); if (ret) return ret; + } else if (sta->he_cap.has_he && num_he_rates == 1) { + ret = ath11k_mac_set_peer_he_fixed_rate(arvif, sta, mask, + band); + if (ret) + return ret; } /* Re-assoc is run only to update supported rates for given station. It @@ -3348,8 +3594,9 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk) enum nl80211_band band; const u8 *ht_mcs_mask; const u16 *vht_mcs_mask; + const u16 *he_mcs_mask; u32 changed, bw, nss, smps; - int err, num_vht_rates; + int err, num_vht_rates, num_he_rates; const struct cfg80211_bitrate_mask *mask; struct peer_assoc_params peer_arg; @@ -3364,6 +3611,7 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk) band = def.chan->band; ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs; vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs; + he_mcs_mask = arvif->bitrate_mask.control[band].he_mcs; spin_lock_bh(&ar->data_lock); @@ -3379,8 +3627,9 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk) mutex_lock(&ar->conf_mutex); nss = max_t(u32, 1, nss); - nss = min(nss, max(ath11k_mac_max_ht_nss(ht_mcs_mask), - ath11k_mac_max_vht_nss(vht_mcs_mask))); + nss = min(nss, max(max(ath11k_mac_max_ht_nss(ht_mcs_mask), + ath11k_mac_max_vht_nss(vht_mcs_mask)), + ath11k_mac_max_he_nss(he_mcs_mask))); if (changed & IEEE80211_RC_BW_CHANGED) { err = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id, @@ -3416,6 +3665,8 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk) mask = &arvif->bitrate_mask; num_vht_rates = ath11k_mac_bitrate_mask_num_vht_rates(ar, band, mask); + num_he_rates = ath11k_mac_bitrate_mask_num_he_rates(ar, band, + mask); /* Peer_assoc_prepare will reject vht rates in * bitrate_mask if its not available in range format and @@ -3431,11 +3682,25 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk) if (sta->vht_cap.vht_supported && num_vht_rates == 1) { ath11k_mac_set_peer_vht_fixed_rate(arvif, sta, mask, band); + } else if (sta->he_cap.has_he && num_he_rates == 1) { + ath11k_mac_set_peer_he_fixed_rate(arvif, sta, mask, + band); } else { - /* If the peer is non-VHT or no fixed VHT rate + /* If the peer is non-VHT/HE or no fixed VHT/HE rate * is provided in the new bitrate mask we set the - * other rates using peer_assoc command. + * other rates using peer_assoc command. Also clear + * the peer fixed rate settings as it has higher proprity + * than peer assoc */ + err = ath11k_wmi_set_peer_param(ar, sta->addr, + arvif->vdev_id, + WMI_PEER_PARAM_FIXED_RATE, + WMI_FIXED_RATE_NONE); + if (err) + ath11k_warn(ar->ab, + "failed to disable peer fixed rate for STA %pM ret %d\n", + sta->addr, err); + ath11k_peer_assoc_prepare(ar, arvif->vif, sta, &peer_arg, true); @@ -5045,10 +5310,13 @@ static int ath11k_mac_op_add_interface(struct ieee80211_hw *hw, for (i = 0; i < ARRAY_SIZE(arvif->bitrate_mask.control); i++) { arvif->bitrate_mask.control[i].legacy = 0xffffffff; + arvif->bitrate_mask.control[i].gi = NL80211_TXRATE_FORCE_SGI; memset(arvif->bitrate_mask.control[i].ht_mcs, 0xff, sizeof(arvif->bitrate_mask.control[i].ht_mcs)); memset(arvif->bitrate_mask.control[i].vht_mcs, 0xff, sizeof(arvif->bitrate_mask.control[i].vht_mcs)); + memset(arvif->bitrate_mask.control[i].he_mcs, 0xff, + sizeof(arvif->bitrate_mask.control[i].he_mcs)); } bit = __ffs64(ab->free_vdev_map); @@ -6086,9 +6354,26 @@ ath11k_mac_has_single_legacy_rate(struct ath11k *ar, if (ath11k_mac_bitrate_mask_num_vht_rates(ar, band, mask)) return false; + if (ath11k_mac_bitrate_mask_num_he_rates(ar, band, mask)) + return false; + return num_rates == 1; } +static __le16 +ath11k_mac_get_tx_mcs_map(const struct ieee80211_sta_he_cap *he_cap) +{ + if (he_cap->he_cap_elem.phy_cap_info[0] & + IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) + return he_cap->he_mcs_nss_supp.tx_mcs_80p80; + + if (he_cap->he_cap_elem.phy_cap_info[0] & + IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G) + return he_cap->he_mcs_nss_supp.tx_mcs_160; + + return he_cap->he_mcs_nss_supp.tx_mcs_80; +} + static bool ath11k_mac_bitrate_mask_get_single_nss(struct ath11k *ar, enum nl80211_band band, @@ -6097,8 +6382,10 @@ ath11k_mac_bitrate_mask_get_single_nss(struct ath11k *ar, { struct ieee80211_supported_band *sband = &ar->mac.sbands[band]; u16 vht_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); + u16 he_mcs_map = 0; u8 ht_nss_mask = 0; u8 vht_nss_mask = 0; + u8 he_nss_mask = 0; int i; /* No need to consider legacy here. Basic rates are always present @@ -6125,7 +6412,20 @@ ath11k_mac_bitrate_mask_get_single_nss(struct ath11k *ar, return false; } - if (ht_nss_mask != vht_nss_mask) + he_mcs_map = le16_to_cpu(ath11k_mac_get_tx_mcs_map(&sband->iftype_data->he_cap)); + + for (i = 0; i < ARRAY_SIZE(mask->control[band].he_mcs); i++) { + if (mask->control[band].he_mcs[i] == 0) + continue; + + if (mask->control[band].he_mcs[i] == + ath11k_mac_get_max_he_mcs_map(he_mcs_map, i)) + he_nss_mask |= BIT(i); + else + return false; + } + + if (ht_nss_mask != vht_nss_mask || ht_nss_mask != he_nss_mask) return false; if (ht_nss_mask == 0) @@ -6172,42 +6472,128 @@ ath11k_mac_get_single_legacy_rate(struct ath11k *ar, return 0; } -static int ath11k_mac_set_fixed_rate_params(struct ath11k_vif *arvif, - u32 rate, u8 nss, u8 sgi, u8 ldpc) +static int +ath11k_mac_set_fixed_rate_GI_LTF(struct ath11k_vif *arvif, u8 he_gi, u8 he_ltf) { struct ath11k *ar = arvif->ar; - u32 vdev_param; int ret; - lockdep_assert_held(&ar->conf_mutex); + /* 0.8 = 0, 1.6 = 2 and 3.2 = 3. */ + if (he_gi && he_gi != 0xFF) + he_gi += 1; - ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02x nss %u sgi %u\n", - arvif->vdev_id, rate, nss, sgi); + ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, + WMI_VDEV_PARAM_SGI, he_gi); + if (ret) { + ath11k_warn(ar->ab, "failed to set HE GI:%d, error:%d\n", + he_gi, ret); + return ret; + } + /* start from 1 */ + if (he_ltf != 0xFF) + he_ltf += 1; - vdev_param = WMI_VDEV_PARAM_FIXED_RATE; ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, - vdev_param, rate); + WMI_VDEV_PARAM_HE_LTF, he_ltf); if (ret) { - ath11k_warn(ar->ab, "failed to set fixed rate param 0x%02x: %d\n", - rate, ret); + ath11k_warn(ar->ab, "failed to set HE LTF:%d, error:%d\n", + he_ltf, ret); return ret; } - vdev_param = WMI_VDEV_PARAM_NSS; + return 0; +} + +static int +ath11k_mac_set_auto_rate_GI_LTF(struct ath11k_vif *arvif, u16 he_gi, u8 he_ltf) +{ + struct ath11k *ar = arvif->ar; + int ret; + u32 he_ar_gi_ltf = 0; + + if (he_gi != 0xFF) { + switch (he_gi) { + case NL80211_RATE_INFO_HE_GI_0_8: + he_gi = WMI_AUTORATE_800NS_GI; + break; + case NL80211_RATE_INFO_HE_GI_1_6: + he_gi = WMI_AUTORATE_1600NS_GI; + break; + case NL80211_RATE_INFO_HE_GI_3_2: + he_gi = WMI_AUTORATE_3200NS_GI; + break; + default: + ath11k_warn(ar->ab, "Invalid GI\n"); + return -EINVAL; + } + } + + if (he_ltf != 0xFF) { + switch (he_ltf) { + case NL80211_RATE_INFO_HE_1XLTF: + he_ltf = WMI_HE_AUTORATE_LTF_1X; + break; + case NL80211_RATE_INFO_HE_2XLTF: + he_ltf = WMI_HE_AUTORATE_LTF_2X; + break; + case NL80211_RATE_INFO_HE_4XLTF: + he_ltf = WMI_HE_AUTORATE_LTF_4X; + break; + default: + ath11k_warn(ar->ab, "Invalid LTF\n"); + return -EINVAL; + } + } + + he_ar_gi_ltf = he_gi | he_ltf; ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, - vdev_param, nss); + WMI_VDEV_PARAM_AUTORATE_MISC_CFG, + he_ar_gi_ltf); if (ret) { - ath11k_warn(ar->ab, "failed to set nss param %d: %d\n", - nss, ret); + ath11k_warn(ar->ab, + "failed to set HE autorate GI:%u, LTF:%u params, error:%d\n", + he_gi, he_ltf, ret); return ret; } - vdev_param = WMI_VDEV_PARAM_SGI; + return 0; +} + +static int ath11k_mac_set_rate_params(struct ath11k_vif *arvif, + u32 rate, u8 nss, u8 sgi, u8 ldpc, + u8 he_gi, u8 he_ltf, bool he_fixed_rate) +{ + struct ath11k *ar = arvif->ar; + u32 vdev_param; + int ret; + + lockdep_assert_held(&ar->conf_mutex); + + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, + "mac set rate params vdev %i, rate:0x%02x, nss:0x%02x, sgi:0x%02x, ldpc:0x%02x\n", + arvif->vdev_id, rate, nss, sgi, ldpc); + + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, + "he_gi:0x%02x, he_ltf:0x%02x, he_fixed_rate:%d\n", he_gi, + he_ltf, he_fixed_rate); + + if (!arvif->vif->bss_conf.he_support) { + vdev_param = WMI_VDEV_PARAM_FIXED_RATE; + ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, + vdev_param, rate); + if (ret) { + ath11k_warn(ar->ab, "failed to set fixed rate param 0x%02x: %d\n", + rate, ret); + return ret; + } + } + + vdev_param = WMI_VDEV_PARAM_NSS; ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, - vdev_param, sgi); + vdev_param, nss); if (ret) { - ath11k_warn(ar->ab, "failed to set sgi param %d: %d\n", - sgi, ret); + ath11k_warn(ar->ab, "failed to set nss param %d: %d\n", + nss, ret); return ret; } @@ -6220,6 +6606,27 @@ static int ath11k_mac_set_fixed_rate_params(struct ath11k_vif *arvif, return ret; } + if (arvif->vif->bss_conf.he_support) { + if (he_fixed_rate) { + ret = ath11k_mac_set_fixed_rate_GI_LTF(arvif, he_gi, + he_ltf); + } else { + ret = ath11k_mac_set_auto_rate_GI_LTF(arvif, he_gi, + he_ltf); + } + if (ret) + return ret; + } else { + vdev_param = WMI_VDEV_PARAM_SGI; + ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, + vdev_param, sgi); + if (ret) { + ath11k_warn(ar->ab, "failed to set sgi param %d: %d\n", + sgi, ret); + return ret; + } + } + return 0; } @@ -6248,6 +6655,31 @@ ath11k_mac_vht_mcs_range_present(struct ath11k *ar, return true; } +static bool +ath11k_mac_he_mcs_range_present(struct ath11k *ar, + enum nl80211_band band, + const struct cfg80211_bitrate_mask *mask) +{ + int i; + u16 he_mcs; + + for (i = 0; i < NL80211_HE_NSS_MAX; i++) { + he_mcs = mask->control[band].he_mcs[i]; + + switch (he_mcs) { + case 0: + case BIT(8) - 1: + case BIT(10) - 1: + case BIT(12) - 1: + break; + default: + return false; + } + } + + return true; +} + static void ath11k_mac_set_bitrate_mask_iter(void *data, struct ieee80211_sta *sta) { @@ -6279,6 +6711,53 @@ static void ath11k_mac_disable_peer_fixed_rate(void *data, sta->addr, ret); } +static bool +ath11k_mac_validate_vht_he_fixed_rate_settings(struct ath11k *ar, enum nl80211_band band, + const struct cfg80211_bitrate_mask *mask) +{ + bool he_fixed_rate = false, vht_fixed_rate = false; + struct ath11k_peer *peer, *tmp; + const u16 *vht_mcs_mask, *he_mcs_mask; + u8 vht_nss, he_nss; + bool ret = true; + + vht_mcs_mask = mask->control[band].vht_mcs; + he_mcs_mask = mask->control[band].he_mcs; + + if (ath11k_mac_bitrate_mask_num_vht_rates(ar, band, mask) == 1) + vht_fixed_rate = true; + + if (ath11k_mac_bitrate_mask_num_he_rates(ar, band, mask) == 1) + he_fixed_rate = true; + + if (!vht_fixed_rate && !he_fixed_rate) + return true; + + vht_nss = ath11k_mac_max_vht_nss(vht_mcs_mask); + he_nss = ath11k_mac_max_he_nss(he_mcs_mask); + + rcu_read_lock(); + spin_lock_bh(&ar->ab->base_lock); + list_for_each_entry_safe(peer, tmp, &ar->ab->peers, list) { + if (peer->sta) { + if (vht_fixed_rate && (!peer->sta->vht_cap.vht_supported || + peer->sta->rx_nss < vht_nss)) { + ret = false; + goto exit; + } + if (he_fixed_rate && (!peer->sta->he_cap.has_he || + peer->sta->rx_nss < he_nss)) { + ret = false; + goto exit; + } + } + } +exit: + spin_unlock_bh(&ar->ab->base_lock); + rcu_read_unlock(); + return ret; +} + static int ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, struct ieee80211_vif *vif, @@ -6290,6 +6769,9 @@ ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, enum nl80211_band band; const u8 *ht_mcs_mask; const u16 *vht_mcs_mask; + const u16 *he_mcs_mask; + u8 he_ltf = 0; + u8 he_gi = 0; u32 rate; u8 nss; u8 sgi; @@ -6297,6 +6779,7 @@ ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, int single_nss; int ret; int num_rates; + bool he_fixed_rate = false; if (ath11k_mac_vif_chan(vif, &def)) return -EPERM; @@ -6304,12 +6787,16 @@ ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, band = def.chan->band; ht_mcs_mask = mask->control[band].ht_mcs; vht_mcs_mask = mask->control[band].vht_mcs; + he_mcs_mask = mask->control[band].he_mcs; ldpc = !!(ar->ht_cap_info & WMI_HT_CAP_LDPC); sgi = mask->control[band].gi; if (sgi == NL80211_TXRATE_FORCE_LGI) return -EINVAL; + he_gi = mask->control[band].he_gi; + he_ltf = mask->control[band].he_ltf; + /* mac80211 doesn't support sending a fixed HT/VHT MCS alone, rather it * requires passing atleast one of used basic rates along with them. * Fixed rate setting across different preambles(legacy, HT, VHT) is @@ -6333,11 +6820,22 @@ ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, &single_nss)) { rate = WMI_FIXED_RATE_NONE; nss = single_nss; + mutex_lock(&ar->conf_mutex); + arvif->bitrate_mask = *mask; + ieee80211_iterate_stations_atomic(ar->hw, + ath11k_mac_set_bitrate_mask_iter, + arvif); + mutex_unlock(&ar->conf_mutex); } else { rate = WMI_FIXED_RATE_NONE; + + if (!ath11k_mac_validate_vht_he_fixed_rate_settings(ar, band, mask)) + ath11k_warn(ar->ab, + "could not update fixed rate settings to all peers due to mcs/nss incompaitiblity\n"); nss = min_t(u32, ar->num_tx_chains, - max(ath11k_mac_max_ht_nss(ht_mcs_mask), - ath11k_mac_max_vht_nss(vht_mcs_mask))); + max(max(ath11k_mac_max_ht_nss(ht_mcs_mask), + ath11k_mac_max_vht_nss(vht_mcs_mask)), + ath11k_mac_max_he_nss(he_mcs_mask))); /* If multiple rates across different preambles are given * we can reconfigure this info with all peers using PEER_ASSOC @@ -6372,12 +6870,23 @@ ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, return -EINVAL; } + num_rates = ath11k_mac_bitrate_mask_num_he_rates(ar, band, + mask); + if (num_rates == 1) + he_fixed_rate = true; + + if (!ath11k_mac_he_mcs_range_present(ar, band, mask) && + num_rates > 1) { + ath11k_warn(ar->ab, + "Setting more than one HE MCS Value in bitrate mask not supported\n"); + return -EINVAL; + } + + mutex_lock(&ar->conf_mutex); ieee80211_iterate_stations_atomic(ar->hw, ath11k_mac_disable_peer_fixed_rate, arvif); - mutex_lock(&ar->conf_mutex); - arvif->bitrate_mask = *mask; ieee80211_iterate_stations_atomic(ar->hw, ath11k_mac_set_bitrate_mask_iter, @@ -6388,9 +6897,10 @@ ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, mutex_lock(&ar->conf_mutex); - ret = ath11k_mac_set_fixed_rate_params(arvif, rate, nss, sgi, ldpc); + ret = ath11k_mac_set_rate_params(arvif, rate, nss, sgi, ldpc, he_gi, + he_ltf, he_fixed_rate); if (ret) { - ath11k_warn(ar->ab, "failed to set fixed rate params on vdev %i: %d\n", + ath11k_warn(ar->ab, "failed to set rate params on vdev %i: %d\n", arvif->vdev_id, ret); } diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index e3d11a0a7b7c..330b435e0ed3 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -1904,8 +1904,8 @@ int ath11k_wmi_send_peer_assoc_cmd(struct ath11k *ar, FIELD_PREP(WMI_TLV_LEN, sizeof(*he_mcs) - TLV_HDR_SIZE); - he_mcs->rx_mcs_set = param->peer_he_rx_mcs_set[i]; - he_mcs->tx_mcs_set = param->peer_he_tx_mcs_set[i]; + he_mcs->rx_mcs_set = param->peer_he_tx_mcs_set[i]; + he_mcs->tx_mcs_set = param->peer_he_rx_mcs_set[i]; ptr += sizeof(*he_mcs); } diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h index 799b3bd96a27..097023a94e06 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.h +++ b/drivers/net/wireless/ath/ath11k/wmi.h @@ -119,6 +119,22 @@ enum { WMI_HOST_WLAN_2G_5G_CAP = 0x3, }; +/* Parameters used for WMI_VDEV_PARAM_AUTORATE_MISC_CFG command. + * Used only for HE auto rate mode. + */ +enum { + /* HE LTF related configuration */ + WMI_HE_AUTORATE_LTF_1X = BIT(0), + WMI_HE_AUTORATE_LTF_2X = BIT(1), + WMI_HE_AUTORATE_LTF_4X = BIT(2), + + /* HE GI related configuration */ + WMI_AUTORATE_400NS_GI = BIT(8), + WMI_AUTORATE_800NS_GI = BIT(9), + WMI_AUTORATE_1600NS_GI = BIT(10), + WMI_AUTORATE_3200NS_GI = BIT(11), +}; + /* * wmi command groups. */ @@ -1044,7 +1060,9 @@ enum wmi_tlv_vdev_param { WMI_VDEV_PARAM_HE_RANGE_EXT, WMI_VDEV_PARAM_ENABLE_BCAST_PROBE_RESPONSE, WMI_VDEV_PARAM_FILS_MAX_CHANNEL_GUARD_TIME, + WMI_VDEV_PARAM_HE_LTF = 0x74, WMI_VDEV_PARAM_BA_MODE = 0x7e, + WMI_VDEV_PARAM_AUTORATE_MISC_CFG = 0x80, WMI_VDEV_PARAM_SET_HE_SOUNDING_MODE = 0x87, WMI_VDEV_PARAM_6GHZ_PARAMS = 0x99, WMI_VDEV_PARAM_PROTOTYPE = 0x8000, @@ -3920,7 +3938,9 @@ struct wmi_vht_rate_set { struct wmi_he_rate_set { u32 tlv_header; + /* MCS at which the peer can receive */ u32 rx_mcs_set; + /* MCS at which the peer can transmit */ u32 tx_mcs_set; } __packed;