From patchwork Thu Dec 23 10:37:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baochen Qiang X-Patchwork-Id: 527661 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 43AD1C433F5 for ; Thu, 23 Dec 2021 10:38:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347757AbhLWKiF (ORCPT ); Thu, 23 Dec 2021 05:38:05 -0500 Received: from alexa-out-sd-02.qualcomm.com ([199.106.114.39]:40908 "EHLO alexa-out-sd-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347758AbhLWKiF (ORCPT ); Thu, 23 Dec 2021 05:38:05 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1640255885; x=1671791885; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=QYRlgldjCKzZ8Ggxua9DjI69vJbVYjPEQ4lPwiop5SM=; b=oxEVzynl69P4jvQF7cXP2LrnMGtAlhyu9J8irct+KDmcZ1jFsbTiydWi MhwvmKhaXZEQY3ZB0GtE5JTBrfFkURMxDVDypyzxtn4PLZQcQGI/8mcMS MTLgtEezKzy8k1aN/9PxTCv8WtQwwUKkpLeI7SS6bq3qTdtjTk7qXPbP2 Y=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-02.qualcomm.com with ESMTP; 23 Dec 2021 02:38:04 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg-SD-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Dec 2021 02:38:04 -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; Thu, 23 Dec 2021 02:38:04 -0800 Received: from bqiang-Celadon-RN.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; Thu, 23 Dec 2021 02:38:03 -0800 From: Baochen Qiang To: CC: Subject: [PATCH] ath11k: Reconfigure hardware rate for WCN6855 after vdev is started Date: Thu, 23 Dec 2021 18:37:28 +0800 Message-ID: <20211223103728.85022-1-quic_bqiang@quicinc.com> X-Mailer: git-send-email 2.25.1 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 There is an issue that WCN6855 tries to connect to an AP using a hardware rate of 1Mb/s , even though the AP has announced expected rates as [24, 36, 48, 54] in Probe Response frame. The reason is that WCN6855 firmware clears hardware rate info of management frames when vdev starts and uses 1Mb/s as default. To solve it, reconfigure the rate after vdev is started. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Baochen Qiang --- drivers/net/wireless/ath/ath11k/core.h | 1 + drivers/net/wireless/ath/ath11k/mac.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index 0103cfd0508d..18740cf2dc44 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -587,6 +587,7 @@ struct ath11k { #endif bool dfs_block_radar_events; struct ath11k_thermal thermal; + int hw_rate_code; }; struct ath11k_band_cap { diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 0050e2c84888..d1c51010e55a 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -2760,6 +2760,11 @@ static void ath11k_recalculate_mgmt_rate(struct ath11k *ar, if (ret) ath11k_warn(ar->ab, "failed to set mgmt tx rate %d\n", ret); + /* For WCN6855, firmware will clear this param when vdev starts, hence + * cache it here so that we can reconfigure it once vdev starts. + */ + ar->hw_rate_code = hw_rate_code; + vdev_param = WMI_VDEV_PARAM_BEACON_RATE; ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, vdev_param, hw_rate_code); @@ -6595,6 +6600,19 @@ static int ath11k_start_vdev_delay(struct ieee80211_hw *hw, return ret; } + /* Reconfigure hardware rate code since it is cleared by firmware. + */ + if (ar->hw_rate_code > 0) { + u32 vdev_param = WMI_VDEV_PARAM_MGMT_RATE; + + ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, vdev_param, + ar->hw_rate_code); + if (ret) { + ath11k_warn(ar->ab, "failed to set mgmt tx rate %d\n", ret); + return ret; + } + } + if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR) { ret = ath11k_wmi_vdev_up(ar, arvif->vdev_id, 0, ar->mac_addr); if (ret) {