From patchwork Mon Aug 6 13:13:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anilkumar Kolli X-Patchwork-Id: 10557079 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 9599A157B for ; Mon, 6 Aug 2018 13:13:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B3BDC283AF for ; Mon, 6 Aug 2018 13:13:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A7C38284C4; Mon, 6 Aug 2018 13:13:09 +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=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,T_DKIM_INVALID 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 2346A283AF for ; Mon, 6 Aug 2018 13:13:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732400AbeHFPWK (ORCPT ); Mon, 6 Aug 2018 11:22:10 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:45460 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732393AbeHFPWK (ORCPT ); Mon, 6 Aug 2018 11:22:10 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 13DA460B1A; Mon, 6 Aug 2018 13:13:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1533561187; bh=WVWuEbthkFgbQwa/vZ6qo/XStrVM/qlws/vx4PU8Chc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cnIEsyXxbhNkVo2pcC5XfqE0K7BOEy+CKYGm8w5st6k5BjUsYyP/PTQnz8NMNTirA Pw6rSnebakreJWJSBJoWAoTzDig39oADxuTTL7CLhTgG3hb9bf+o4l6Q+XtoqaXs7H m927iDTUYQxSK1Lx4vN0JJ8uyrgGv2g23pGnXkfo= Received: from localhost (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: akolli@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id D739160AFF; Mon, 6 Aug 2018 13:13:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1533561186; bh=WVWuEbthkFgbQwa/vZ6qo/XStrVM/qlws/vx4PU8Chc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cYfNKHDWI98CHv8kBIqu++/HHmLhDVaNGmD+q8h98RaR3yxbYCh8tMoteikpqoL4f Zpweo7Qzi/Sv7pBaX+LROgXmc8F89BXh6/MGaHUCsI7V2zHZOs2cpEjzJrlEGRyW4M zN0XgFtzN2kSwTe2OSHs9wIKA4bXdxZyxYRY8JJc= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org D739160AFF 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=akolli@codeaurora.org From: Anilkumar Kolli To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org Subject: [PATCH 4/4] ath10k: add debugfs support to dump per sta tx stats Date: Mon, 6 Aug 2018 18:43:43 +0530 Message-Id: <1533561223-342-5-git-send-email-akolli@codeaurora.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1533561223-342-1-git-send-email-akolli@codeaurora.org> References: <1533561223-342-1-git-send-email-akolli@codeaurora.org> 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 This patch adds 'tx_stats' in per station debugfs entry. Use this command to dump tx_stats: cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan0/ stations//tx_stats Signed-off-by: Anilkumar Kolli --- drivers/net/wireless/ath/ath10k/debugfs_sta.c | 100 +++++++++++++++++++++++++ 1 file changed, 100 insertions(+) diff --git a/drivers/net/wireless/ath/ath10k/debugfs_sta.c b/drivers/net/wireless/ath/ath10k/debugfs_sta.c index a63c97e2c50c..800eddd26af8 100644 --- a/drivers/net/wireless/ath/ath10k/debugfs_sta.c +++ b/drivers/net/wireless/ath/ath10k/debugfs_sta.c @@ -626,9 +626,105 @@ static ssize_t ath10k_dbg_sta_read_tid_stats(struct file *file, .llseek = default_llseek, }; +static inline int ath10k_dump_htt_tx_stats(char *buf, int len, int size, + struct ath10k_htt_data_stats stats, + int type, const char *name) +{ + static const char *str[ATH10K_COUNTER_TYPE_MAX] = { + "bytes", "packets"}; + int i; + + len += scnprintf(buf + len, size - len, "%s_%s\n", name, + str[type]); + len += scnprintf(buf + len, size - len, " VHT MCS %s\n", + str[type]); + for (i = 0; i < NUM_VHT_MCS; i++) + len += scnprintf(buf + len, size - len, " %llu ", + stats.vht[type][i]); + len += scnprintf(buf + len, size - len, "\n"); + len += scnprintf(buf + len, size - len, " HT MCS %s\n", + str[type]); + for (i = 0; i < NUM_HT_MCS; i++) + len += scnprintf(buf + len, size - len, " %llu ", + stats.ht[type][i]); + len += scnprintf(buf + len, size - len, "\n"); + len += scnprintf(buf + len, size - len, + " BW %s (20,40,80,160 MHz)\n", str[type]); + len += scnprintf(buf + len, size - len, " %llu %llu %llu %llu\n", + stats.bw[type][0], stats.bw[type][1], + stats.bw[type][2], stats.bw[type][3]); + len += scnprintf(buf + len, size - len, + " NSS %s (1x1,2x2,3x3,4x4)\n", str[type]); + len += scnprintf(buf + len, size - len, " %llu %llu %llu %llu\n", + stats.nss[type][0], stats.nss[type][1], + stats.nss[type][2], stats.nss[type][3]); + len += scnprintf(buf + len, size - len, " GI %s (LGI,SGI)\n", + str[type]); + len += scnprintf(buf + len, size - len, " %llu %llu\n", + stats.gi[type][0], stats.gi[type][1]); + len += scnprintf(buf + len, size - len, + " legacy rate %s (1,2 ... Mbps)\n ", str[type]); + for (i = 0; i < NUM_LEGACY; i++) + len += scnprintf(buf + len, size - len, "%llu ", + stats.legacy[type][i]); + len += scnprintf(buf + len, size - len, "\n"); + + return len; +} + +static ssize_t ath10k_dbg_sta_dump_tx_stats(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ieee80211_sta *sta = file->private_data; + struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv; + struct ath10k *ar = arsta->arvif->ar; + char *buf; + static const char *str_name[ATH10K_STATS_TYPE_MAX] = { + "succ", "fail", "retry", "ampdu"}; + int len = 0, i, j, retval = 0, size = 2 * 1024; + + buf = kzalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + mutex_lock(&ar->conf_mutex); + + for (i = 0; i < ATH10K_STATS_TYPE_MAX; i++) + for (j = 0; j < ATH10K_COUNTER_TYPE_MAX; j++) + len = ath10k_dump_htt_tx_stats(buf, len, size, + arsta->tx_stats->stats[i], + j, str_name[i]); + + len += scnprintf(buf + len, size - len, + "\nTX duration\n %llu usecs\n", + arsta->tx_stats->tx_duration); + len += scnprintf(buf + len, size - len, + "BA fails\n %llu\n", arsta->tx_stats->ba_fails); + len += scnprintf(buf + len, size - len, + "ack fails\n %llu\n", arsta->tx_stats->ack_fails); + + if (len > size) + len = size; + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + mutex_unlock(&ar->conf_mutex); + return retval; +} + +static const struct file_operations fops_tx_stats = { + .read = ath10k_dbg_sta_dump_tx_stats, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct dentry *dir) { + struct ath10k *ar = hw->priv; + debugfs_create_file("aggr_mode", 0644, dir, sta, &fops_aggr_mode); debugfs_create_file("addba", 0200, dir, sta, &fops_addba); debugfs_create_file("addba_resp", 0200, dir, sta, &fops_addba_resp); @@ -637,4 +733,8 @@ void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, &fops_peer_debug_trigger); debugfs_create_file("dump_tid_stats", 0400, dir, sta, &fops_tid_stats_dump); + + if (ath10k_peer_stats_enabled(ar) && ar->debug.enable_extd_tx_stats) + debugfs_create_file("tx_stats", 0400, dir, sta, + &fops_tx_stats); }