From patchwork Fri Dec 24 08:52:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Wen Gong X-Patchwork-Id: 527949 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 133A4C433F5 for ; Fri, 24 Dec 2021 08:53:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352090AbhLXIxI (ORCPT ); Fri, 24 Dec 2021 03:53:08 -0500 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:62138 "EHLO alexa-out-sd-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352081AbhLXIxH (ORCPT ); Fri, 24 Dec 2021 03:53:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1640335987; x=1671871987; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=N/d92Y7f4rSySdqyTQ+agQwIhh7BN2WBMp+c2BaZZ/E=; b=ITszX0T4xeS1ysPc2T2TQcOPQ2GzcfM8YBn/SOzcXiUVUKY4Pob/uL1j G70y2KlHuEmWAZM8Xl2HhqwIPO8tsBJDlJRV+JBQLvtWrhIDM5Lx7m8ib ZqkwsWtBQXI/UIVeDMODFPgsZy0TMa8tPzLslpYymqwNvuvMitWhXVo8g M=; Received: from unknown (HELO ironmsg01-sd.qualcomm.com) ([10.53.140.141]) by alexa-out-sd-01.qualcomm.com with ESMTP; 24 Dec 2021 00:53:07 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg01-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Dec 2021 00:53:07 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 24 Dec 2021 00:53:07 -0800 Received: from wgong-HP3-Z230-SFF-Workstation.qca.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 24 Dec 2021 00:53:05 -0800 From: Wen Gong To: CC: , Subject: [PATCH v2 09/15] ath11k: add parse of transmit power envelope element Date: Fri, 24 Dec 2021 03:52:30 -0500 Message-ID: <20211224085236.9064-10-quic_wgong@quicinc.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211224085236.9064-1-quic_wgong@quicinc.com> References: <20211224085236.9064-1-quic_wgong@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org The transmit power envelope element has some fields for power, ath11k should parse it according to IEEE Std 802.11ax™‐2021. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Wen Gong --- drivers/net/wireless/ath/ath11k/core.h | 38 +++++ drivers/net/wireless/ath/ath11k/mac.c | 185 +++++++++++++++++++++++++ 2 files changed, 223 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index 681a58aaa26b..506829febad7 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -212,6 +212,43 @@ enum ath11k_monitor_flags { ATH11K_FLAG_MONITOR_VDEV_CREATED, }; +/** + * struct chan_power_info - TPE containing power info per channel chunk + * @chan_cfreq: channel center freq (MHz) + * e.g. + * channel 37/20 MHz, it is 6135 + * channel 37/40 MHz, it is 6125 + * channel 37/80 MHz, it is 6145 + * channel 37/160 MHz, it is 6185 + * @tx_power: transmit power (dBm) + */ +struct chan_power_info { + u16 chan_cfreq; + s8 tx_power; +}; + +/** + * struct reg_tpc_power_info - regulatory TPC power info + * @is_psd_power: is PSD power or not + * @eirp_power: Maximum EIRP power (dBm), valid only if power is PSD + * @power_type_6g: type of power (SP/LPI/VLP) + * @num_pwr_levels: number of power levels + * @reg_max: Array of maximum TX power (dBm) per PSD value + * @ap_constraint_power: AP constraint power (dBm) + * @tpe: TPE values processed from TPE IE + * @chan_power_info: power info to send to firmware + */ +struct ath11k_reg_tpc_power_info { + bool is_psd_power; + u8 eirp_power; + enum wmi_reg_6g_ap_type power_type_6g; + u8 num_pwr_levels; + u8 reg_max[IEEE80211_MAX_NUM_PWR_LEVEL]; + u8 ap_constraint_power; + s8 tpe[IEEE80211_MAX_NUM_PWR_LEVEL]; + struct chan_power_info chan_power_info[IEEE80211_MAX_NUM_PWR_LEVEL]; +}; + struct ath11k_vif { u32 vdev_id; enum wmi_vdev_type vdev_type; @@ -263,6 +300,7 @@ struct ath11k_vif { bool bcca_zero_sent; bool do_not_send_tmpl; struct ieee80211_chanctx_conf chanctx; + struct ath11k_reg_tpc_power_info reg_tpc_info; }; struct ath11k_vif_iter { diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index a18b12abb63d..6eb707473ed3 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -6988,6 +6988,189 @@ static int ath11k_start_vdev_delay(struct ieee80211_hw *hw, return 0; } +static u8 ath11k_mac_get_tpe_count(u8 txpwr_intrprt, u8 txpwr_cnt) +{ + switch (txpwr_intrprt) { + /* Refer "Table 9-276-Meaning of Maximum Transmit Power Count subfield + * if the Maximum Transmit Power Interpretation subfield is 0 or 2" of + * "IEEE Std 802.11ax 2021". + */ + case IEEE80211_TPE_LOCAL_EIRP: + case IEEE80211_TPE_REG_CLIENT_EIRP: + txpwr_cnt = txpwr_cnt <= 3 ? txpwr_cnt : 3; + txpwr_cnt = txpwr_cnt + 1; + break; + /* Refer "Table 9-277-Meaning of Maximum Transmit Power Count subfield + * if Maximum Transmit Power Interpretation subfield is 1 or 3" of + * "IEEE Std 802.11ax 2021". + */ + case IEEE80211_TPE_LOCAL_EIRP_PSD: + case IEEE80211_TPE_REG_CLIENT_EIRP_PSD: + txpwr_cnt = txpwr_cnt <= 4 ? txpwr_cnt : 4; + txpwr_cnt = txpwr_cnt ? (BIT(txpwr_cnt - 1)) : 1; + break; + } + + return txpwr_cnt; +} + +static u8 ath11k_mac_get_num_pwr_levels(struct cfg80211_chan_def *chan_def) +{ + if (chan_def->chan->flags & IEEE80211_CHAN_PSD) { + switch (chan_def->width) { + case NL80211_CHAN_WIDTH_20: + return 1; + case NL80211_CHAN_WIDTH_40: + return 2; + case NL80211_CHAN_WIDTH_80: + return 4; + case NL80211_CHAN_WIDTH_80P80: + case NL80211_CHAN_WIDTH_160: + return 8; + default: + return 1; + } + } else { + switch (chan_def->width) { + case NL80211_CHAN_WIDTH_20: + return 1; + case NL80211_CHAN_WIDTH_40: + return 2; + case NL80211_CHAN_WIDTH_80: + return 3; + case NL80211_CHAN_WIDTH_80P80: + case NL80211_CHAN_WIDTH_160: + return 4; + default: + return 1; + } + } +} + +static void ath11k_mac_parse_tx_pwr_env(struct ath11k *ar, + struct ieee80211_vif *vif, + struct ieee80211_chanctx_conf *ctx) +{ + struct ath11k_base *ab = ar->ab; + struct ath11k_vif *arvif = (void *)vif->drv_priv; + struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + struct ieee80211_tx_pwr_env *single_tpe; + enum wmi_reg_6g_client_type client_type; + struct cur_regulatory_info *reg_info; + int i; + u8 pwr_count, pwr_interpret, pwr_category; + u8 psd_index = 0, non_psd_index = 0, local_tpe_count = 0, reg_tpe_count = 0; + bool use_local_tpe, non_psd_set = false, psd_set = false; + + reg_info = &ab->reg_info_store[ar->pdev_idx]; + client_type = reg_info->client_type; + + for (i = 0; i < bss_conf->tx_pwr_env_num; i++) { + single_tpe = &bss_conf->tx_pwr_env[i]; + pwr_category = u8_get_bits(single_tpe->tx_power_info, + IEEE80211_TX_PWR_ENV_INFO_CATEGORY); + pwr_interpret = u8_get_bits(single_tpe->tx_power_info, + IEEE80211_TX_PWR_ENV_INFO_INTERPRET); + + if (pwr_category == client_type) { + if (pwr_interpret == IEEE80211_TPE_LOCAL_EIRP || + pwr_interpret == IEEE80211_TPE_LOCAL_EIRP_PSD) + local_tpe_count++; + else if (pwr_interpret == IEEE80211_TPE_REG_CLIENT_EIRP || + pwr_interpret == IEEE80211_TPE_REG_CLIENT_EIRP_PSD) + reg_tpe_count++; + } + } + + if (!reg_tpe_count && !local_tpe_count) { + ath11k_warn(ab, + "no transmit power envelope match client power type %d\n", + client_type); + return; + } else if (!reg_tpe_count) { + use_local_tpe = true; + } else { + use_local_tpe = false; + } + + for (i = 0; i < bss_conf->tx_pwr_env_num; i++) { + single_tpe = &bss_conf->tx_pwr_env[i]; + pwr_category = u8_get_bits(single_tpe->tx_power_info, + IEEE80211_TX_PWR_ENV_INFO_CATEGORY); + pwr_interpret = u8_get_bits(single_tpe->tx_power_info, + IEEE80211_TX_PWR_ENV_INFO_INTERPRET); + + if (pwr_category != client_type) + continue; + + /* get local transmit power envelope */ + if (use_local_tpe) { + if (pwr_interpret == IEEE80211_TPE_LOCAL_EIRP) { + non_psd_index = i; + non_psd_set = true; + } else if (pwr_interpret == IEEE80211_TPE_LOCAL_EIRP_PSD) { + psd_index = i; + psd_set = true; + } + /* get regulatory transmit power envelope */ + } else { + if (pwr_interpret == IEEE80211_TPE_REG_CLIENT_EIRP) { + non_psd_index = i; + non_psd_set = true; + } else if (pwr_interpret == IEEE80211_TPE_REG_CLIENT_EIRP_PSD) { + psd_index = i; + psd_set = true; + } + } + } + + if (non_psd_set && !psd_set) { + single_tpe = &bss_conf->tx_pwr_env[non_psd_index]; + pwr_count = u8_get_bits(single_tpe->tx_power_info, + IEEE80211_TX_PWR_ENV_INFO_COUNT); + pwr_interpret = u8_get_bits(single_tpe->tx_power_info, + IEEE80211_TX_PWR_ENV_INFO_INTERPRET); + arvif->reg_tpc_info.is_psd_power = false; + arvif->reg_tpc_info.eirp_power = 0; + + arvif->reg_tpc_info.num_pwr_levels = + ath11k_mac_get_tpe_count(pwr_interpret, pwr_count); + for (i = 0; i < arvif->reg_tpc_info.num_pwr_levels; i++) { + ath11k_dbg(ab, ATH11K_DBG_MAC, + "non PSD power[%d] : %d\n", + i, single_tpe->tx_power[i]); + arvif->reg_tpc_info.tpe[i] = single_tpe->tx_power[i] / 2; + } + } + + if (psd_set) { + single_tpe = &bss_conf->tx_pwr_env[psd_index]; + pwr_count = u8_get_bits(single_tpe->tx_power_info, + IEEE80211_TX_PWR_ENV_INFO_COUNT); + pwr_interpret = u8_get_bits(single_tpe->tx_power_info, + IEEE80211_TX_PWR_ENV_INFO_INTERPRET); + arvif->reg_tpc_info.is_psd_power = true; + + if (pwr_count == 0) { + ath11k_dbg(ab, ATH11K_DBG_MAC, + "TPE PSD power : %d\n", single_tpe->tx_power[0]); + arvif->reg_tpc_info.num_pwr_levels = + ath11k_mac_get_num_pwr_levels(&ctx->def); + for (i = 0; i < arvif->reg_tpc_info.num_pwr_levels; i++) + arvif->reg_tpc_info.tpe[i] = single_tpe->tx_power[0] / 2; + } else { + arvif->reg_tpc_info.num_pwr_levels = + ath11k_mac_get_tpe_count(pwr_interpret, pwr_count); + for (i = 0; i < arvif->reg_tpc_info.num_pwr_levels; i++) { + ath11k_dbg(ab, ATH11K_DBG_MAC, + "TPE PSD power[%d] : %d\n", + i, single_tpe->tx_power[i]); + arvif->reg_tpc_info.tpe[i] = single_tpe->tx_power[i] / 2; + } + } + } +} + static int ath11k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, @@ -7016,6 +7199,8 @@ ath11k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw, if (power_type == IEEE80211_REG_UNSET_AP) power_type = IEEE80211_REG_LPI_AP; ath11k_reg_handle_chan_list(ab, reg_info, power_type); + + ath11k_mac_parse_tx_pwr_env(ar, vif, ctx); } /* for QCA6390 bss peer must be created before vdev_start */