From patchwork Fri Jun 12 11:27:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Loic Poulain X-Patchwork-Id: 11601539 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5D07B618 for ; Fri, 12 Jun 2020 11:22:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3F6302081A for ; Fri, 12 Jun 2020 11:22:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="p9LMr5Vy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726134AbgFLLWi (ORCPT ); Fri, 12 Jun 2020 07:22:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725791AbgFLLWg (ORCPT ); Fri, 12 Jun 2020 07:22:36 -0400 Received: from mail-wr1-x443.google.com (mail-wr1-x443.google.com [IPv6:2a00:1450:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0694FC03E96F for ; Fri, 12 Jun 2020 04:22:36 -0700 (PDT) Received: by mail-wr1-x443.google.com with SMTP id x14so9355968wrp.2 for ; Fri, 12 Jun 2020 04:22:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=Jo7yBrmeX1GY6ZlKqjKQxxARUuLWfKqWUIO8Mcrol1M=; b=p9LMr5VyjRMpIqMnHSpcWJIQTxoKjd3cvoA7989N6XePfyrTReZZ8PHsp/dDz0OHXp 8opzvf29Y6KyfaFlRikUAPqooxZRYKK9oBGdu95r4FgiNcJj2UY621COVYj5rjkm7YLJ sAm7ApDdDK98O/5bT0h/D33QfgK/r5jzuMveCHeLX/ziXedZttfutz2PNZ+mQSeM0IY8 yW2NjhKjdSW2pWXR0uwcb63sWUGvE8TpUSEinI4FAVA/ujEuDDC//XCBB6t1CBx5qNwB oA9TYDXWkOmXma067sdABBilqwqD2LKMURusjUW9CdCJ6X0N0yw+DQEShK+qbal2sbpL qm+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=Jo7yBrmeX1GY6ZlKqjKQxxARUuLWfKqWUIO8Mcrol1M=; b=ZaWRA8sIyyWnUgC9Rfr7h1YwzX6IeibMjvs1OlvoSo9KfhqgWXKZL6sZ8Jo+q8Noym L42PRMqsGZqMrEXlOCRfeJ9jCZN5LRtA9zc9sTX3fw0v3sZCUwhspL0pB9zAv0jnszEf SmrnTXL5vzipPDp4SQPWNFN/4vnAprJWScuqDbNyeGC3c7xY5pELEpjEQ8pgi+77p+Sl fUweRcLfTDvztH9/ApOJvaV3QnwOIrh0ZZl/i0K2q4npg2HqNGP/e3qTb9K0uq6f2T8+ Om9s7QS1+/+j0s66k7Mht1HBULo+/E7d4kMgymioSLqEaNnSmiOnDL1pZe3h1YDHhoAH 0SNg== X-Gm-Message-State: AOAM532LVsoNjuhFuWb3cy2i/SFjGs9YrguabCziv6raUhPVvhRLfjFb CkqbUdZFyqcCjFMKiF31tdzjcnasnHQ= X-Google-Smtp-Source: ABdhPJxaGXnAokllfRL74+fxnE7OPzjY9goexm3evrwYHYXAMrvZ2Gb8VbrMLy2/NRLZ+xpsnw7O3g== X-Received: by 2002:adf:f0d2:: with SMTP id x18mr14399281wro.250.1591960954531; Fri, 12 Jun 2020 04:22:34 -0700 (PDT) Received: from localhost.localdomain ([88.122.66.28]) by smtp.gmail.com with ESMTPSA id u9sm8969415wme.16.2020.06.12.04.22.33 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 12 Jun 2020 04:22:34 -0700 (PDT) From: Loic Poulain To: kvalo@codeaurora.org Cc: wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org, Loic Poulain Subject: [PATCH] wcn36xx: Add ieee80211 rx status rate information Date: Fri, 12 Jun 2020 13:27:34 +0200 Message-Id: <1591961254-10243-1-git-send-email-loic.poulain@linaro.org> X-Mailer: git-send-email 2.7.4 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Packet encoding, bandwidth and bitrate can be derived from the wcn36xx rate_idx, part of the buffer descriptor. Signed-off-by: Loic Poulain --- drivers/net/wireless/ath/wcn36xx/txrx.c | 109 +++++++++++++++++++++++++++++++- 1 file changed, 108 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c index a690237..dda6d89 100644 --- a/drivers/net/wireless/ath/wcn36xx/txrx.c +++ b/drivers/net/wireless/ath/wcn36xx/txrx.c @@ -23,9 +23,104 @@ static inline int get_rssi0(struct wcn36xx_rx_bd *bd) return 100 - ((bd->phy_stat0 >> 24) & 0xff); } +struct wcn36xx_rate { + u16 bitrate; + u16 mcs_or_legacy_index; + enum mac80211_rx_encoding encoding; + enum mac80211_rx_encoding_flags encoding_flags; + enum rate_info_bw bw; +}; + +static const struct wcn36xx_rate wcn36xx_rate_table[] = { + /* 11b rates */ + { 10, 0, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 20, 1, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 55, 2, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 110, 3, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + + /* 11b SP (short preamble) */ + { 10, 0, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, + { 20, 1, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, + { 55, 2, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, + { 110, 3, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, + + /* 11ag */ + { 60, 4, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 90, 5, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 120, 6, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 180, 7, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 240, 8, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 360, 9, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 480, 10, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 540, 11, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + + /* 11n */ + { 65, 0, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 130, 1, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 195, 2, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 260, 3, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 390, 4, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 520, 5, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 585, 6, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 650, 7, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + + /* 11n SGI */ + { 72, 0, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 144, 1, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 217, 2, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 289, 3, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 434, 4, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 578, 5, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 650, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 722, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + + /* 11n GF (greenfield) */ + { 65, 0, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 130, 1, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 195, 2, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 260, 3, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 390, 4, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 520, 5, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 585, 6, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 650, 7, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + + /* 11n CB (channel bonding) */ + { 135, 0, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 270, 1, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 405, 2, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 540, 3, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 810, 4, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 1080, 5, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 1215, 6, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 1350, 7, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + + /* 11n CB + SGI */ + { 150, 0, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 300, 1, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 450, 2, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 600, 3, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 900, 4, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 1200, 5, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 1500, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + + /* 11n GF + CB */ + { 135, 0, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 270, 1, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 405, 2, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 540, 3, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 810, 4, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 1080, 5, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 1215, 6, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 1350, 7, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + + /* TODO: AC rates */ +}; + int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) { struct ieee80211_rx_status status; + const struct wcn36xx_rate *rate; struct ieee80211_hdr *hdr; struct wcn36xx_rx_bd *bd; u16 fc, sn; @@ -61,7 +156,6 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) status.mactime = 10; status.signal = -get_rssi0(bd); status.antenna = 1; - status.rate_idx = 1; status.flag = 0; status.rx_flags = 0; status.flag |= RX_FLAG_IV_STRIPPED | @@ -70,6 +164,19 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) wcn36xx_dbg(WCN36XX_DBG_RX, "status.flags=%x\n", status.flag); + if (bd->rate_id < ARRAY_SIZE(wcn36xx_rate_table)) { + rate = &wcn36xx_rate_table[bd->rate_id]; + status.encoding = rate->encoding; + status.enc_flags = rate->encoding_flags; + status.bw = rate->bw; + status.rate_idx = rate->mcs_or_legacy_index; + } else { + status.encoding = 0; + status.bw = 0; + status.enc_flags = 0; + status.rate_idx = 0; + } + memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); if (ieee80211_is_beacon(hdr->frame_control)) {