From patchwork Sat Oct 20 11:05:30 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Rajkumar Manoharan X-Patchwork-Id: 10650381 X-Patchwork-Delegate: johannes@sipsolutions.net 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 093E314E2 for ; Sat, 20 Oct 2018 11:06:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 00C0E285EB for ; Sat, 20 Oct 2018 11:06:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E9864285EC; Sat, 20 Oct 2018 11:06:00 +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 6FB35285EF for ; Sat, 20 Oct 2018 11:05:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727527AbeJTTPv (ORCPT ); Sat, 20 Oct 2018 15:15:51 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:53180 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727292AbeJTTPv (ORCPT ); Sat, 20 Oct 2018 15:15:51 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 1570760B73; Sat, 20 Oct 2018 11:05:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1540033546; bh=avQ3fVAaAHP4zrec0sv5d2qv2Lm/2OFbAIew3ie8a3g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BJOtFgNLI/vjjMZmNTMRElzPv+HNL+rfRmwodI5h20jDIcmzJGrL+9xVFnGvc6XBw Hx2ZCUm3u/OKspQv62qTG+/NSD5zD9zwe5BRN+2hNjj4P1t8bygdlra1WNPeQVQDX3 Xm/AJ+9Q3B0Ibfx3FBrrHLc/WzE1ZqvvrC4UDHIE= Received: from smtp.codeaurora.org (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: rmanohar@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id DA6C7607F1; Sat, 20 Oct 2018 11:05:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1540033545; bh=avQ3fVAaAHP4zrec0sv5d2qv2Lm/2OFbAIew3ie8a3g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z2n1xKfhssJSlink9VkoJeQTv5KctWzF6cNTum+cE/VnypUxSHRSNiUQXM0lLJLDX bMzF4Swk+QWnZHj+RfBPJlA9981LDxAVSbH5lztsklas5q4qxrOgBK0mIFwN2yRoPp r5U3E5UE2Tfyy/cmXnCdLBi3PWC7xnGdlEfu7JSk= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org DA6C7607F1 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=rmanohar@codeaurora.org Received: by smtp.codeaurora.org (sSMTP sendmail emulation); Sat, 20 Oct 2018 04:05:43 -0700 From: Rajkumar Manoharan To: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org Cc: =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= Subject: [PATCH 2/6] cfg80211: Add airtime statistics and settings Date: Sat, 20 Oct 2018 04:05:30 -0700 Message-Id: <1540033534-11211-3-git-send-email-rmanohar@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1540033534-11211-1-git-send-email-rmanohar@codeaurora.org> References: <1540033534-11211-1-git-send-email-rmanohar@codeaurora.org> MIME-Version: 1.0 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: Toke Høiland-Jørgensen This adds TX airtime statistics to the cfg80211 station dump (to go along with the RX info already present), and adds a new parameter to set the airtime weight of each station. The latter allows userspace to implement policies for different stations by varying their weights. Signed-off-by: Toke Høiland-Jørgensen --- include/net/cfg80211.h | 10 +++++++++- include/uapi/linux/nl80211.h | 15 +++++++++++++++ net/wireless/nl80211.c | 28 ++++++++++++++++++++++++++++ 3 files changed, 52 insertions(+), 1 deletion(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 0e16e723dcef..4591cb8a8e5d 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1001,6 +1001,7 @@ enum station_parameters_apply_mask { * @support_p2p_ps: information if station supports P2P PS mechanism * @he_capa: HE capabilities of station * @he_capa_len: the length of the HE capabilities + * @airtime_weight: airtime scheduler weight for this station */ struct station_parameters { const u8 *supported_rates; @@ -1030,6 +1031,7 @@ struct station_parameters { int support_p2p_ps; const struct ieee80211_he_cap_elem *he_capa; u8 he_capa_len; + u16 airtime_weight; }; /** @@ -1297,6 +1299,8 @@ struct cfg80211_tid_stats { * @rx_beacon_signal_avg: signal strength average (in dBm) for beacons received * from this peer * @rx_duration: aggregate PPDU duration(usecs) for all the frames from a peer + * @tx_duration: aggregate PPDU duration(usecs) for all the frames to a peer + * @airtime_weight: current airtime scheduling weight * @pertid: per-TID statistics, see &struct cfg80211_tid_stats, using the last * (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs. * Note that this doesn't use the @filled bit, but is used if non-NULL. @@ -1343,10 +1347,12 @@ struct station_info { u32 expected_throughput; - u64 rx_beacon; + u64 tx_duration; u64 rx_duration; + u64 rx_beacon; u8 rx_beacon_signal_avg; struct cfg80211_tid_stats *pertid; + u16 airtime_weight; s8 ack_signal; s8 avg_ack_signal; }; @@ -2374,6 +2380,8 @@ enum wiphy_params_flags { WIPHY_PARAM_TXQ_QUANTUM = 1 << 8, }; +#define IEEE80211_DEFAULT_AIRTIME_WEIGHT 256 + /** * struct cfg80211_pmksa - PMK Security Association * diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index dc6d5a1ef470..43591af7178a 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -2254,6 +2254,9 @@ enum nl80211_commands { * @NL80211_ATTR_FTM_RESPONDER_STATS: Nested attribute with FTM responder * statistics, see &enum nl80211_ftm_responder_stats. * + * @NL80211_ATTR_AIRTIME_WEIGHT: Station's weight when scheduled by the airtime + * scheduler. + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -2699,6 +2702,8 @@ enum nl80211_attrs { NL80211_ATTR_FTM_RESPONDER_STATS, + NL80211_ATTR_AIRTIME_WEIGHT, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -3068,6 +3073,9 @@ enum nl80211_sta_bss_param { * @NL80211_STA_INFO_PAD: attribute used for padding for 64-bit alignment * @NL80211_STA_INFO_ACK_SIGNAL: signal strength of the last ACK frame(u8, dBm) * @NL80211_STA_INFO_ACK_SIGNAL_AVG: avg signal strength of ACK frames (s8, dBm) + * @NL80211_STA_INFO_TX_DURATION: aggregate PPDU duration for all frames + * sent to the station (u64, usec) + * @NL80211_STA_INFO_AIRTIME_WEIGHT: current airtime weight for station (u16) * @__NL80211_STA_INFO_AFTER_LAST: internal * @NL80211_STA_INFO_MAX: highest possible station info attribute */ @@ -3108,6 +3116,8 @@ enum nl80211_sta_info { NL80211_STA_INFO_PAD, NL80211_STA_INFO_ACK_SIGNAL, NL80211_STA_INFO_ACK_SIGNAL_AVG, + NL80211_STA_INFO_TX_DURATION, + NL80211_STA_INFO_AIRTIME_WEIGHT, /* keep last */ __NL80211_STA_INFO_AFTER_LAST, @@ -5250,6 +5260,10 @@ enum nl80211_feature_flags { * if this flag is not set. Ignoring this can leak clear text packets and/or * freeze the connection. * + * @NL80211_EXT_FEATURE_AIRTIME_FAIRNESS: Driver supports getting airtime + * fairness for transmitted packets and has enabled airtime fairness + * scheduling. + * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. */ @@ -5289,6 +5303,7 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0, NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER, + NL80211_EXT_FEATURE_AIRTIME_FAIRNESS, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 9a20c66a1505..09361f75d1df 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -444,6 +444,7 @@ enum nl80211_multicast_groups { .type = NLA_NESTED, .validation_data = nl80211_ftm_responder_policy, }, + [NL80211_ATTR_AIRTIME_WEIGHT] = { .type = NLA_U16 }, }; /* policy for the key attributes */ @@ -4702,6 +4703,11 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid, PUT_SINFO(PLID, plid, u16); PUT_SINFO(PLINK_STATE, plink_state, u8); PUT_SINFO_U64(RX_DURATION, rx_duration); + PUT_SINFO_U64(TX_DURATION, tx_duration); + + if (wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) + PUT_SINFO(AIRTIME_WEIGHT, airtime_weight, u16); switch (rdev->wiphy.signal_type) { case CFG80211_SIGNAL_TYPE_MBM: @@ -5339,6 +5345,17 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]); } + if (info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]) { + if (!wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) + return -EOPNOTSUPP; + + params.airtime_weight = + nla_get_u16(info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]); + if (!params.airtime_weight) + return -EINVAL; + } + /* Include parameters for TDLS peer (will check later) */ err = nl80211_set_station_tdls(info, ¶ms); if (err) @@ -5477,6 +5494,17 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } + if (info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]) { + if (!wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) + return -EOPNOTSUPP; + + params.airtime_weight = + nla_get_u16(info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]); + if (!params.airtime_weight) + return -EINVAL; + } + err = nl80211_parse_sta_channel_info(info, ¶ms); if (err) return err;