From patchwork Wed Oct 17 11:20:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rakesh Pillai X-Patchwork-Id: 10645331 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6ED4513A4 for ; Wed, 17 Oct 2018 11:20:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 538B62AE34 for ; Wed, 17 Oct 2018 11:20:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 473132AE36; Wed, 17 Oct 2018 11:20:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB2192AE34 for ; Wed, 17 Oct 2018 11:20:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726996AbeJQTPh (ORCPT ); Wed, 17 Oct 2018 15:15:37 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:39316 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726904AbeJQTPh (ORCPT ); Wed, 17 Oct 2018 15:15:37 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 5A3EC612F6; Wed, 17 Oct 2018 11:20:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1539775222; bh=1ni316ie+9WA/S7624mzp7NkuULZnYt9t3Lwu6Q0yGg=; h=From:To:Cc:Subject:Date:From; b=A3mt9kBvXTTcVcWlmOK/vEbKPbU//bQEUFrfGyrTJ/NCZugxY2CnwsXTxOXADE+Xf CkEEuTm6nM6XdjKEAADS5RW24iLt7v08DWjdt59WiynDu0sD/xBz3RmQeQD8Iz2MNo 1awP0YiwZw25jNCpUhOmleZK9bbgdw+nITFWB5Lw= Received: from pillair-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: pillair@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 4816E60769; Wed, 17 Oct 2018 11:20:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1539775221; bh=1ni316ie+9WA/S7624mzp7NkuULZnYt9t3Lwu6Q0yGg=; h=From:To:Cc:Subject:Date:From; b=jLLlfKurRDS1sKhrHGbI6JYcfvGvsXWsJdqsIxbn/iHnxOsbqHm+jErtkKpT6ZPDz xVt7cBVKcVNNhnNsyEWVi7oQ5adUYlkgcjm9F4w8BOgo7MBMd/6kSdSsPKqxZUwgJ+ ROWwHcG3cjm9U85sVG+I9gxX9pW20zGTc9o3f/Mo= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 4816E60769 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=pillair@codeaurora.org From: Rakesh Pillai To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Rakesh Pillai , Surabhi Vishnoi Subject: [PATCH v2] ath10k: Fill the channel survey results for WCN3990 correctly Date: Wed, 17 Oct 2018 16:50:03 +0530 Message-Id: <1539775203-22764-1-git-send-email-pillair@codeaurora.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 X-Virus-Scanned: ClamAV using ClamSMTP The host driver currently expects the channel info event to be received in pairs for all the channels, i.e. the first chan_info event for a particular channel will not have the COMPLETE flag set and the second chan_info event for the same channel will have the COMPLETE flag set. The HL2.0 firmware sends only one channel info event per channel which is scanned without the COMPLETE flag set. After sending the chan_info_event for all the channels, the HL2.0 firmware sends a chan_info_event with COMPLETE flag set to indicate the completion of the channel info event. The firmware does not indicate this behavior with any service bitmap and hence a new firmware feature flag is used to handle the modified parsing of the channel info events, in the host driver, for the firmware which sends single channel info event per scanned channel. Tested HW: WCN3990 Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1 Co-developed-by: Surabhi Vishnoi Signed-off-by: Surabhi Vishnoi Signed-off-by: Rakesh Pillai --- drivers/net/wireless/ath/ath10k/core.c | 1 + drivers/net/wireless/ath/ath10k/core.h | 3 + drivers/net/wireless/ath/ath10k/wmi-tlv.c | 3 + drivers/net/wireless/ath/ath10k/wmi-tlv.h | 10 +++ drivers/net/wireless/ath/ath10k/wmi.c | 128 +++++++++++++++++++++--------- drivers/net/wireless/ath/ath10k/wmi.h | 12 +++ 6 files changed, 120 insertions(+), 37 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index 0126e0a..9d0b351 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -594,6 +594,7 @@ static const char *const ath10k_core_fw_feature_str[] = { [ATH10K_FW_FEATURE_NO_PS] = "no-ps", [ATH10K_FW_FEATURE_MGMT_TX_BY_REF] = "mgmt-tx-by-reference", [ATH10K_FW_FEATURE_NON_BMI] = "non-bmi", + [ATH10K_FW_FEATURE_SINGLE_CHAN_INFO_PER_CHANNEL] = "single-chan-info-per-channel", }; static unsigned int ath10k_core_get_fw_feature_str(char *buf, diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h index 406668a..1376fc5 100644 --- a/drivers/net/wireless/ath/ath10k/core.h +++ b/drivers/net/wireless/ath/ath10k/core.h @@ -760,6 +760,9 @@ enum ath10k_fw_features { /* Firmware load is done externally, not by bmi */ ATH10K_FW_FEATURE_NON_BMI = 19, + /* Firmware sends only one chan_info event per channel */ + ATH10K_FW_FEATURE_SINGLE_CHAN_INFO_PER_CHANNEL = 20, + /* keep last */ ATH10K_FW_FEATURE_COUNT, }; diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c index 93a7b7b..4b02edc 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -762,6 +762,9 @@ static int ath10k_wmi_tlv_op_pull_ch_info_ev(struct ath10k *ar, arg->noise_floor = ev->noise_floor; arg->rx_clear_count = ev->rx_clear_count; arg->cycle_count = ev->cycle_count; + if (test_bit(ATH10K_FW_FEATURE_SINGLE_CHAN_INFO_PER_CHANNEL, + ar->running_fw->fw_file.fw_features)) + arg->mac_clk_mhz = ev->mac_clk_mhz; kfree(tb); return 0; diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h index 6af8d9b..1454d60 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h @@ -1579,6 +1579,16 @@ struct ath10k_mgmt_tx_pkt_addr { dma_addr_t paddr; }; +struct chan_info_params { + u32 err_code; + u32 freq; + u32 cmd_flags; + u32 noise_floor; + u32 rx_clear_count; + u32 cycle_count; + u32 mac_clk_mhz; +}; + struct wmi_tlv_mgmt_tx_compl_ev { __le32 desc_id; __le32 status; diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 25e8fa7..659513b 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -2554,60 +2554,69 @@ static int ath10k_wmi_10_4_op_pull_ch_info_ev(struct ath10k *ar, return 0; } -void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb) +/* + * Handle the channel info event for firmware which only sends one + * chan_info event per scanned channel. + */ +static void ath10k_wmi_event_chan_info_unpaired(struct ath10k *ar, + struct chan_info_params *params) { - struct wmi_ch_info_ev_arg arg = {}; struct survey_info *survey; - u32 err_code, freq, cmd_flags, noise_floor, rx_clear_count, cycle_count; - int idx, ret; + int idx; - ret = ath10k_wmi_pull_ch_info(ar, skb, &arg); - if (ret) { - ath10k_warn(ar, "failed to parse chan info event: %d\n", ret); + if (params->cmd_flags & WMI_CHAN_INFO_FLAG_COMPLETE) { + ath10k_dbg(ar, ATH10K_DBG_WMI, "chan info report completed\n"); return; } - err_code = __le32_to_cpu(arg.err_code); - freq = __le32_to_cpu(arg.freq); - cmd_flags = __le32_to_cpu(arg.cmd_flags); - noise_floor = __le32_to_cpu(arg.noise_floor); - rx_clear_count = __le32_to_cpu(arg.rx_clear_count); - cycle_count = __le32_to_cpu(arg.cycle_count); + idx = freq_to_idx(ar, params->freq); + if (idx >= ARRAY_SIZE(ar->survey)) { + ath10k_warn(ar, "chan info: invalid frequency %d (idx %d out of bounds)\n", + params->freq, idx); + return; + } - ath10k_dbg(ar, ATH10K_DBG_WMI, - "chan info err_code %d freq %d cmd_flags %d noise_floor %d rx_clear_count %d cycle_count %d\n", - err_code, freq, cmd_flags, noise_floor, rx_clear_count, - cycle_count); + survey = &ar->survey[idx]; - spin_lock_bh(&ar->data_lock); + if (!params->mac_clk_mhz || !survey) + return; - switch (ar->scan.state) { - case ATH10K_SCAN_IDLE: - case ATH10K_SCAN_STARTING: - ath10k_warn(ar, "received chan info event without a scan request, ignoring\n"); - goto exit; - case ATH10K_SCAN_RUNNING: - case ATH10K_SCAN_ABORTING: - break; - } + memset(survey, 0, sizeof(*survey)); - idx = freq_to_idx(ar, freq); + survey->noise = params->noise_floor; + survey->time = (params->cycle_count / params->mac_clk_mhz) / 1000; + survey->time_busy = (params->rx_clear_count / params->mac_clk_mhz) / 1000; + survey->filled |= SURVEY_INFO_NOISE_DBM | SURVEY_INFO_TIME | + SURVEY_INFO_TIME_BUSY; +} + +/* + * Handle the channel info event for firmware which sends chan_info + * event in pairs(start and stop events) for every scanned channel. + */ +static void ath10k_wmi_event_chan_info_paired(struct ath10k *ar, + struct chan_info_params *params) +{ + struct survey_info *survey; + int idx; + + idx = freq_to_idx(ar, params->freq); if (idx >= ARRAY_SIZE(ar->survey)) { ath10k_warn(ar, "chan info: invalid frequency %d (idx %d out of bounds)\n", - freq, idx); - goto exit; + params->freq, idx); + return; } - if (cmd_flags & WMI_CHAN_INFO_FLAG_COMPLETE) { + if (params->cmd_flags & WMI_CHAN_INFO_FLAG_COMPLETE) { if (ar->ch_info_can_report_survey) { survey = &ar->survey[idx]; - survey->noise = noise_floor; + survey->noise = params->noise_floor; survey->filled = SURVEY_INFO_NOISE_DBM; ath10k_hw_fill_survey_time(ar, survey, - cycle_count, - rx_clear_count, + params->cycle_count, + params->rx_clear_count, ar->survey_last_cycle_count, ar->survey_last_rx_clear_count); } @@ -2617,11 +2626,56 @@ void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb) ar->ch_info_can_report_survey = true; } - if (!(cmd_flags & WMI_CHAN_INFO_FLAG_PRE_COMPLETE)) { - ar->survey_last_rx_clear_count = rx_clear_count; - ar->survey_last_cycle_count = cycle_count; + if (!(params->cmd_flags & WMI_CHAN_INFO_FLAG_PRE_COMPLETE)) { + ar->survey_last_rx_clear_count = params->rx_clear_count; + ar->survey_last_cycle_count = params->cycle_count; + } +} + +void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb) +{ + struct chan_info_params ch_info_param; + struct wmi_ch_info_ev_arg arg = {}; + int ret; + + ret = ath10k_wmi_pull_ch_info(ar, skb, &arg); + if (ret) { + ath10k_warn(ar, "failed to parse chan info event: %d\n", ret); + return; + } + + ch_info_param.err_code = __le32_to_cpu(arg.err_code); + ch_info_param.freq = __le32_to_cpu(arg.freq); + ch_info_param.cmd_flags = __le32_to_cpu(arg.cmd_flags); + ch_info_param.noise_floor = __le32_to_cpu(arg.noise_floor); + ch_info_param.rx_clear_count = __le32_to_cpu(arg.rx_clear_count); + ch_info_param.cycle_count = __le32_to_cpu(arg.cycle_count); + ch_info_param.mac_clk_mhz = __le32_to_cpu(arg.mac_clk_mhz); + + ath10k_dbg(ar, ATH10K_DBG_WMI, + "chan info err_code %d freq %d cmd_flags %d noise_floor %d rx_clear_count %d cycle_count %d\n", + ch_info_param.err_code, ch_info_param.freq, ch_info_param.cmd_flags, + ch_info_param.noise_floor, ch_info_param.rx_clear_count, + ch_info_param.cycle_count); + + spin_lock_bh(&ar->data_lock); + + switch (ar->scan.state) { + case ATH10K_SCAN_IDLE: + case ATH10K_SCAN_STARTING: + ath10k_warn(ar, "received chan info event without a scan request, ignoring\n"); + goto exit; + case ATH10K_SCAN_RUNNING: + case ATH10K_SCAN_ABORTING: + break; } + if (test_bit(ATH10K_FW_FEATURE_SINGLE_CHAN_INFO_PER_CHANNEL, + ar->running_fw->fw_file.fw_features)) + ath10k_wmi_event_chan_info_unpaired(ar, &ch_info_param); + else + ath10k_wmi_event_chan_info_paired(ar, &ch_info_param); + exit: spin_unlock_bh(&ar->data_lock); } diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h index f67c527..d70352e 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.h +++ b/drivers/net/wireless/ath/ath10k/wmi.h @@ -6441,6 +6441,14 @@ struct wmi_chan_info_event { __le32 noise_floor; __le32 rx_clear_count; __le32 cycle_count; + __le32 chan_tx_pwr_range; + __le32 chan_tx_pwr_tp; + __le32 rx_frame_count; + __le32 my_bss_rx_cycle_count; + __le32 rx_11b_mode_data_duration; + __le32 tx_frame_cnt; + __le32 mac_clk_mhz; + } __packed; struct wmi_10_4_chan_info_event { @@ -6669,6 +6677,10 @@ struct wmi_ch_info_ev_arg { __le32 chan_tx_pwr_range; __le32 chan_tx_pwr_tp; __le32 rx_frame_count; + __le32 my_bss_rx_cycle_count; + __le32 rx_11b_mode_data_duration; + __le32 tx_frame_cnt; + __le32 mac_clk_mhz; }; /* From 10.4 firmware, not sure all have the same values. */