From patchwork Thu Jun 2 12:41:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikanta Pubbisetty X-Patchwork-Id: 578469 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 0A10CC433EF for ; Thu, 2 Jun 2022 12:42:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235025AbiFBMmD (ORCPT ); Thu, 2 Jun 2022 08:42:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36372 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233380AbiFBMmC (ORCPT ); Thu, 2 Jun 2022 08:42:02 -0400 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68D1B22168D for ; Thu, 2 Jun 2022 05:42:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1654173721; x=1685709721; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=vI3dykq+/nxLcaJ8BRdrfh9jOZK5Imea8Cf6WRjmGFs=; b=ctf9i/7j9YaGy++pWqjnUkWoEMl4SodbERk4zM2xM6PMIg52ubvjFfKB U73uoFMzCMY4NH0tvQQAYp2Ayfs/NiRd1y+umzYS07lGqRxwmigh9bHXB c/Rk02ISFB2fd84qvv3wAMW1qCls0zKIywbAKH2J/WaI5QfVbfTVR6Q4j s=; Received: from unknown (HELO ironmsg01-sd.qualcomm.com) ([10.53.140.141]) by alexa-out-sd-02.qualcomm.com with ESMTP; 02 Jun 2022 05:42:00 -0700 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; 02 Jun 2022 05:42:00 -0700 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 15.2.986.22; Thu, 2 Jun 2022 05:42:00 -0700 Received: from mpubbise-linux.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 15.2.986.22; Thu, 2 Jun 2022 05:41:58 -0700 From: Manikanta Pubbisetty To: CC: , Manikanta Pubbisetty Subject: [PATCH] ath11k: Fix LDPC config in set_bitrate_mask hook Date: Thu, 2 Jun 2022 18:11:42 +0530 Message-ID: <20220602124142.29909-1-quic_mpubbise@quicinc.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Currently ar->ht_cap_info is not set anywhere in the code, this could result in LDPC config computed wrongly in the set_bitrate_mask() hook and eventually sending wrong config to the target. Fix this by checking the LDPC support from the band HT capabilities of the radio instead. Furthermore, it looks like firmwares running on the ath11k hardware do not set WMI_HT_CAP_LDPC for advertising the TX LDPC capability, WMI_HT_CAP_TX_LDPC is set instead and this should be checked for getting hardware's TX LDPC support. This is true for QCA6390, WCN6855 & WCN6750 hardware. Also, remove unused variables ht_cap_info & vht_cap_info from struct ath11k{}. Found this during code review. Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1 Signed-off-by: Manikanta Pubbisetty --- drivers/net/wireless/ath/ath11k/core.h | 2 -- drivers/net/wireless/ath/ath11k/mac.c | 4 +++- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index ea31016437b0..2bd5eb9df4d4 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -582,8 +582,6 @@ struct ath11k { struct ath11k_pdev_wmi *wmi; struct ath11k_pdev_dp dp; u8 mac_addr[ETH_ALEN]; - u32 ht_cap_info; - u32 vht_cap_info; struct ath11k_he ar_he; enum ath11k_state state; bool supports_6ghz; diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index f11956163822..6b3d7a014847 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -7800,6 +7800,7 @@ ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, { struct ath11k_vif *arvif = (void *)vif->drv_priv; struct cfg80211_chan_def def; + struct ath11k_pdev_cap *cap; struct ath11k *ar = arvif->ar; enum nl80211_band band; const u8 *ht_mcs_mask; @@ -7820,10 +7821,11 @@ ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, return -EPERM; band = def.chan->band; + cap = &ar->pdev->cap; 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); + ldpc = !!(cap->band[band].ht_cap_info & WMI_HT_CAP_TX_LDPC); sgi = mask->control[band].gi; if (sgi == NL80211_TXRATE_FORCE_LGI)