From patchwork Thu Nov 30 12:58:21 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: akolli@qti.qualcomm.com X-Patchwork-Id: 10084815 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.web.codeaurora.org (Postfix) with ESMTP id D844860234 for ; Thu, 30 Nov 2017 12:58:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C634829F89 for ; Thu, 30 Nov 2017 12:58:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BAF1929F8B; Thu, 30 Nov 2017 12:58:33 +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=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, 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 C78BE29F89 for ; Thu, 30 Nov 2017 12:58:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752923AbdK3M6b (ORCPT ); Thu, 30 Nov 2017 07:58:31 -0500 Received: from alexa-out.qualcomm.com ([129.46.98.28]:44983 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752235AbdK3M63 (ORCPT ); Thu, 30 Nov 2017 07:58:29 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=qti.qualcomm.com; i=@qti.qualcomm.com; q=dns/txt; s=qcdkim; t=1512046709; x=1543582709; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=nAwjavEYfxoVVXDvt4q/jsI/yACFvY/YrcTUSdCwPAE=; b=YbCrdNx8PV3r2xglwYXUsY7j713E3VUKd7+xdQiqKNtqru6aB7GxG8nf yP/12e6OwlOvIcQAiMO0W+TzpYFxSaaPcRIGAfI3jS0VjT3rN26tPTDjQ lvV9/RgNHfKWOkjAWt8koHQla4j2B5CkmykD88fiiYXHaHGkfFOYyGKx5 M=; Received: from ironmsg03-r-new.qualcomm.com (HELO Ironmsg03-R.qualcomm.com) ([10.53.140.107]) by alexa-out.qualcomm.com with ESMTP; 30 Nov 2017 04:58:28 -0800 X-IronPort-AV: E=McAfee;i="5900,7806,8730"; a="1492250054" X-MGA-submission: =?us-ascii?q?MDGOh8FVXf5DH4HnqtgZsSfZ3c82VlDcqrOhKI?= =?us-ascii?q?YZzhL705k0C9s+rddPACzZCYbXtHChZ+GuKCswpUSOXjh1VzvwSEK0Mi?= =?us-ascii?q?nrDdgw92+p76jejjARgoSXvPj627jzDOGou4YtIoUjGhwj1yfRJ4Us1O?= =?us-ascii?q?H4?= Received: from nasanexm03d.na.qualcomm.com ([10.85.0.91]) by Ironmsg03-R.qualcomm.com with ESMTP/TLS/AES256-SHA; 30 Nov 2017 04:58:28 -0800 Received: from aphydexm01f.ap.qualcomm.com (10.252.127.15) by nasanexm03d.na.qualcomm.com (10.85.0.91) with Microsoft SMTP Server (TLS) id 15.0.1293.2; Thu, 30 Nov 2017 04:58:27 -0800 Received: from localhost (10.80.80.8) by aphydexm01f.ap.qualcomm.com (10.252.127.15) with Microsoft SMTP Server (TLS) id 15.0.1293.2; Thu, 30 Nov 2017 18:28:21 +0530 From: To: CC: , , Anilkumar Kolli Subject: [PATCH 2/2] ath10k: add per peer tx stats support for 10.2.4 Date: Thu, 30 Nov 2017 18:28:21 +0530 Message-ID: <1512046701-14435-3-git-send-email-akolli@qti.qualcomm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1512046701-14435-1-git-send-email-akolli@qti.qualcomm.com> References: <1512046701-14435-1-git-send-email-akolli@qti.qualcomm.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: NASANEXM01B.na.qualcomm.com (10.85.0.82) To aphydexm01f.ap.qualcomm.com (10.252.127.15) 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 From: Anilkumar Kolli 10.2.4 firmware branch (used in QCA988X) does not support HTT_10_4_T2H_MSG_TYPE_PEER_STATS and that's why ath10k does not provide tranmission rate statistics to user space, instead it just shows hardcoded 6 Mbit/s. But pktlog firmware facility provides per peer tx statistics. The firmware sends one pktlog event for every four PPDUs per peer, which include: * successful number of packets and bytes transmitted * number of packets and bytes dropped * retried number of packets and bytes * rate info per ppdu Firmware supports WMI_SERVICE_PEER_STATS, pktlog is enabled through ATH10K_FLAG_PEER_STATS, which is nowadays enabled by default in ath10k. This patch does not impact throughput. Tested on QCA9880 with firmware version 10.2.4.70.48. This should also work with firmware branch 10.2.4-1.0-00029 Parse peer stats from pktlog packets and update the tx rate information per STA. This way user space can query about transmit rate with iw: $iw wlan0 station dump Station 3c:a9:f4:72:bb:a4 (on wlan1) inactive time: 8210 ms rx bytes: 9166 rx packets: 44 tx bytes: 1105 tx packets: 9 tx retries: 0 tx failed: 1 rx drop misc: 3 signal: -75 [-75, -87, -88] dBm signal avg: -75 [-75, -85, -88] dBm tx bitrate: 39.0 MBit/s MCS 10 rx bitrate: 26.0 MBit/s MCS 3 rx duration: 23250 us authorized: yes authenticated: yes associated: yes preamble: short WMM/WME: yes MFP: no TDLS peer: no DTIM period: 2 beacon interval:100 short preamble: yes short slot time:yes connected time: 22 seconds Signed-off-by: Anilkumar Kolli --- drivers/net/wireless/ath/ath10k/debug.h | 18 ++++++++- drivers/net/wireless/ath/ath10k/htt.h | 17 +++++++++ drivers/net/wireless/ath/ath10k/htt_rx.c | 60 ++++++++++++++++++++++++++++++ drivers/net/wireless/ath/ath10k/mac.c | 10 +++++ 4 files changed, 104 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h index 548ad5483a4a..290979ef4915 100644 --- a/drivers/net/wireless/ath/ath10k/debug.h +++ b/drivers/net/wireless/ath/ath10k/debug.h @@ -51,7 +51,8 @@ enum ath10k_pktlog_filter { ATH10K_PKTLOG_RCFIND = 0x000000004, ATH10K_PKTLOG_RCUPDATE = 0x000000008, ATH10K_PKTLOG_DBG_PRINT = 0x000000010, - ATH10K_PKTLOG_ANY = 0x00000001f, + ATH10K_PKTLOG_PEER_STATS = 0x000000040, + ATH10K_PKTLOG_ANY = 0x00000005f, }; enum ath10k_dbg_aggr_mode { @@ -60,6 +61,21 @@ enum ath10k_dbg_aggr_mode { ATH10K_DBG_AGGR_MODE_MAX, }; +/* Types of packet log events */ +enum ath_pktlog_type { + ATH_PKTLOG_TYPE_TX_CTRL = 1, + ATH_PKTLOG_TYPE_TX_STAT, +}; + +struct ath10k_pktlog_hdr { + __le16 flags; + __le16 missed_cnt; + __le16 log_type; /* Type of log information foll this header */ + __le16 size; /* Size of variable length log information in bytes */ + __le32 timestamp; + u8 payload[0]; +} __packed; + /* FIXME: How to calculate the buffer size sanely? */ #define ATH10K_FW_STATS_BUF_SIZE (1024 * 1024) diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h index 6305308422c4..89db96afea17 100644 --- a/drivers/net/wireless/ath/ath10k/htt.h +++ b/drivers/net/wireless/ath/ath10k/htt.h @@ -1497,6 +1497,23 @@ struct htt_peer_tx_stats { u8 payload[0]; } __packed; +#define ATH10K_10_2_TX_STATS_OFFSET 136 +#define PEER_STATS_FOR_NO_OF_PPDUS 4 + +struct ath10k_10_2_peer_tx_stats { + u8 ratecode[PEER_STATS_FOR_NO_OF_PPDUS]; + u8 success_pkts[PEER_STATS_FOR_NO_OF_PPDUS]; + __le16 success_bytes[PEER_STATS_FOR_NO_OF_PPDUS]; + u8 retry_pkts[PEER_STATS_FOR_NO_OF_PPDUS]; + __le16 retry_bytes[PEER_STATS_FOR_NO_OF_PPDUS]; + u8 failed_pkts[PEER_STATS_FOR_NO_OF_PPDUS]; + __le16 failed_bytes[PEER_STATS_FOR_NO_OF_PPDUS]; + u8 flags[PEER_STATS_FOR_NO_OF_PPDUS]; + __le32 tx_duration; + u8 tx_ppdu_cnt; + u8 peer_id; +} __packed; + union htt_rx_pn_t { /* WEP: 24-bit PN */ u32 pn24; diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index e31438541ee1..3361807b87b3 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -2424,6 +2424,62 @@ static void ath10k_htt_fetch_peer_stats(struct ath10k *ar, rcu_read_unlock(); } +static void ath10k_fetch_10_2_tx_stats(struct ath10k *ar, u8 *data) +{ + struct ath10k_pktlog_hdr *hdr = (struct ath10k_pktlog_hdr *)data; + struct ath10k_per_peer_tx_stats *p_tx_stats = &ar->peer_tx_stats; + struct ath10k_10_2_peer_tx_stats *tx_stats; + struct ieee80211_sta *sta; + struct ath10k_peer *peer; + u16 log_type = __le16_to_cpu(hdr->log_type); + u32 peer_id = 0, i; + + if (log_type != ATH_PKTLOG_TYPE_TX_STAT) + return; + + tx_stats = (struct ath10k_10_2_peer_tx_stats *)((hdr->payload) + + ATH10K_10_2_TX_STATS_OFFSET); + + if (!tx_stats->tx_ppdu_cnt) + return; + + peer_id = tx_stats->peer_id; + + rcu_read_lock(); + spin_lock_bh(&ar->data_lock); + peer = ath10k_peer_find_by_id(ar, peer_id); + if (!peer) { + ath10k_warn(ar, "Invalid peer id %d in peer stats buffer\n", + peer_id); + goto out; + } + + sta = peer->sta; + for (i = 0; i < tx_stats->tx_ppdu_cnt; i++) { + p_tx_stats->succ_bytes = + __le16_to_cpu(tx_stats->success_bytes[i]); + p_tx_stats->retry_bytes = + __le16_to_cpu(tx_stats->retry_bytes[i]); + p_tx_stats->failed_bytes = + __le16_to_cpu(tx_stats->failed_bytes[i]); + p_tx_stats->ratecode = tx_stats->ratecode[i]; + p_tx_stats->flags = tx_stats->flags[i]; + p_tx_stats->succ_pkts = tx_stats->success_pkts[i]; + p_tx_stats->retry_pkts = tx_stats->retry_pkts[i]; + p_tx_stats->failed_pkts = tx_stats->failed_pkts[i]; + + ath10k_update_per_peer_tx_stats(ar, sta, p_tx_stats); + } + spin_unlock_bh(&ar->data_lock); + rcu_read_unlock(); + + return; + +out: + spin_unlock_bh(&ar->data_lock); + rcu_read_unlock(); +} + bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) { struct ath10k_htt *htt = &ar->htt; @@ -2541,6 +2597,10 @@ bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) skb->len - offsetof(struct htt_resp, pktlog_msg.payload)); + + if (ath10k_peer_stats_enabled(ar)) + ath10k_fetch_10_2_tx_stats(ar, + resp->pktlog_msg.payload); break; } case HTT_T2H_MSG_TYPE_RX_FLUSH: { diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 0a947eef348d..39a5408a1ce2 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -7536,6 +7536,16 @@ struct ath10k_mac_change_chanctx_arg { arvif->vdev_id, ret); } + if (ath10k_peer_stats_enabled(ar)) { + ar->pktlog_filter |= ATH10K_PKTLOG_PEER_STATS; + ret = ath10k_wmi_pdev_pktlog_enable(ar, + ar->pktlog_filter); + if (ret) { + ath10k_warn(ar, "failed to enable pktlog %d\n", ret); + goto err_stop; + } + } + mutex_unlock(&ar->conf_mutex); return 0;