From patchwork Mon Jan 20 07:51:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tamizh chelvam X-Patchwork-Id: 216603 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87D6CC33CA1 for ; Mon, 20 Jan 2020 07:51:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 52AE22073A for ; Mon, 20 Jan 2020 07:51:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="GhsvXkF0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726867AbgATHvx (ORCPT ); Mon, 20 Jan 2020 02:51:53 -0500 Received: from mail26.static.mailgun.info ([104.130.122.26]:44169 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726444AbgATHvw (ORCPT ); Mon, 20 Jan 2020 02:51:52 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1579506712; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=PEdZ+Y4W9RN4Q8BfsRrhwSC1Nfqf9m+uSIqKlHKe2J8=; b=GhsvXkF0gT6nhE5t1EY2pGmrUVKA6g0bBGYpPB//tBMmnZ8+QsPYOG5jHP6LiyFHylAs1Ehn agXXGAfvVZXt9LOiWjFF11V8MjpTz5IXXFSWdGkkyD9h1WkwwcSshMtm5oIAUn3mSAS3tMMT v0UpVoIshn4Bu7RyoqHAGVPp96Y= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e255c14.7f98699c33e8-smtp-out-n01; Mon, 20 Jan 2020 07:51:48 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 57A0DC4479C; Mon, 20 Jan 2020 07:51:47 +0000 (UTC) Received: from akolli-ThinkPad-L560.qca.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: tamizhr) by smtp.codeaurora.org (Postfix) with ESMTPSA id 52BA2C43383; Mon, 20 Jan 2020 07:51:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 52BA2C43383 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=tamizhr@codeaurora.org From: Tamizh Chelvam To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Tamizh chelvam Subject: [PATCHv10 5/6] nl80211: Add support to configure TID specific txrate configuration Date: Mon, 20 Jan 2020 13:21:26 +0530 Message-Id: <1579506687-18296-6-git-send-email-tamizhr@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1579506687-18296-1-git-send-email-tamizhr@codeaurora.org> References: <1579506687-18296-1-git-send-email-tamizhr@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Tamizh chelvam This patch adds support to configure per TID txrate configuration configuration through the NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE and NL80211_TID_CONFIG_ATTR_TX_RATE attribute. TX bitrate mask values passed in NL80211_ATTR_TX_RATES attribute and NL80211_TID_CONFIG_ATTR_TX_RATES attribute will have types of the TX rate should be applied. This uses nl80211_parse_tx_bitrate_mask to validate and calculate the bitrate mask. Signed-off-by: Tamizh chelvam --- include/net/cfg80211.h | 5 +++ include/uapi/linux/nl80211.h | 24 +++++++++++++ net/wireless/nl80211.c | 77 ++++++++++++++++++++++++++++++++---------- 3 files changed, 89 insertions(+), 17 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 80fd868..58363e6 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -634,6 +634,7 @@ enum ieee80211_tid_conf_mask { BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL), IEEE80211_TID_CONF_RTSCTS = BIT(NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL), + IEEE80211_TID_CONF_TX_BITRATE = BIT(NL80211_TID_CONFIG_ATTR_TX_RATE), }; /** @@ -648,6 +649,8 @@ enum ieee80211_tid_conf_mask { * @retry_short: retry count value * @ampdu: Enable/Disable aggregation * @rtscts: Enable/Disable RTS/CTS + * @txrate_type: TX bitrate mask type + * @mask: bitrate to be applied for the TID */ struct ieee80211_tid_cfg { bool config_override; @@ -658,6 +661,8 @@ struct ieee80211_tid_cfg { int retry_short; enum nl80211_tid_config ampdu; enum nl80211_tid_config rtscts; + enum nl80211_tx_rate_setting txrate_type; + struct cfg80211_bitrate_mask *mask; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 63f89cb..0db55d7 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -4741,6 +4741,18 @@ enum nl80211_tx_power_setting { }; /** + * enum nl80211_tx_rate_setting - TX rate configuration type + * @NL80211_TX_RATE_AUTOMATIC: automatically determine TX rate + * @NL80211_TX_RATE_LIMITED: limit the TX rate by the TX rate parameter + * @NL80211_TX_RATE_FIXED: fix TX rate to the TX rate parameter + */ +enum nl80211_tx_rate_setting { + NL80211_TX_RATE_AUTOMATIC, + NL80211_TX_RATE_LIMITED, + NL80211_TX_RATE_FIXED, +}; + +/** * enum nl80211_tid_config - TID config state * @NL80211_TID_CONFIG_ENABLE: Enable config for the TID * @NL80211_TID_CONFIG_DISABLE: Disable config for the TID @@ -4776,6 +4788,10 @@ enum nl80211_tid_config { * specified in %NL80211_TID_CONFIG_ATTR_TIDS. Its type is u8, * @NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL: Enable/Disable RTS_CTS for the TID * specified in %%NL80211_TID_CONFIG_ATTR_TIDS. It is u8 type. + * @NL80211_TID_CONFIG_ATTR_TX_RATE: Data frame TX rate mask should be applied + * with the parameters passed through %NL80211_ATTR_TX_RATES. This + * configuration is per TID, TID is specified with + * %NL80211_TID_CONFIG_ATTR_TIDS. */ enum nl80211_tid_config_attr { __NL80211_TID_CONFIG_ATTR_INVALID, @@ -4786,6 +4802,8 @@ enum nl80211_tid_config_attr { NL80211_TID_CONFIG_ATTR_RETRY_LONG, NL80211_TID_CONFIG_ATTR_AMPDU_CTRL, NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL, + NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE, + NL80211_TID_CONFIG_ATTR_TX_RATE, /* keep last */ __NL80211_TID_CONFIG_ATTR_AFTER_LAST, @@ -5630,6 +5648,10 @@ enum nl80211_feature_flags { * RTS_CTS control(enable/disable). * @NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL_CONFIG: Driver supports STA specific * RTS_CTS control(enable/disable). + * @NL80211_EXT_FEATURE_PER_TID_TX_RATE_CONFIG: Driver supports TID specific + * TX bitrate configuration. + * @NL80211_EXT_FEATURE_PER_STA_TX_RATE_CONFIG: Driver supports STA specific + * TX bitrate configuration. * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. @@ -5688,6 +5710,8 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL_CONFIG, NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL_CONFIG, NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL_CONFIG, + NL80211_EXT_FEATURE_PER_TID_TX_RATE_CONFIG, + NL80211_EXT_FEATURE_PER_STA_TX_RATE_CONFIG, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 0b987c3..2cd404f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -328,6 +328,18 @@ static int validate_ie_attr(const struct nlattr *attr, [NL80211_HE_BSS_COLOR_ATTR_PARTIAL] = { .type = NLA_FLAG }, }; +static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { + [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, + .len = NL80211_MAX_SUPP_RATES }, + [NL80211_TXRATE_HT] = { .type = NLA_BINARY, + .len = NL80211_MAX_SUPP_HT_RATES }, + [NL80211_TXRATE_VHT] = { + .type = NLA_EXACT_LEN_WARN, + .len = sizeof(struct nl80211_txrate_vht), + }, + [NL80211_TXRATE_GI] = { .type = NLA_U8 }, +}; + static const struct nla_policy nl80211_tid_config_attr_policy[NL80211_TID_CONFIG_ATTR_MAX + 1] = { [NL80211_TID_CONFIG_ATTR_OVERRIDE] = { .type = NLA_FLAG }, @@ -340,6 +352,10 @@ static int validate_ie_attr(const struct nlattr *attr, NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), [NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL] = NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), + [NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE] = + NLA_POLICY_MAX(NLA_U8, NL80211_TX_RATE_FIXED), + [NL80211_TID_CONFIG_ATTR_TX_RATE] = + NLA_POLICY_NESTED(nl80211_txattr_policy), }; const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { @@ -4253,19 +4269,9 @@ static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband, return true; } -static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { - [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, - .len = NL80211_MAX_SUPP_RATES }, - [NL80211_TXRATE_HT] = { .type = NLA_BINARY, - .len = NL80211_MAX_SUPP_HT_RATES }, - [NL80211_TXRATE_VHT] = { - .type = NLA_EXACT_LEN_WARN, - .len = sizeof(struct nl80211_txrate_vht), - }, - [NL80211_TXRATE_GI] = { .type = NLA_U8 }, -}; - static int nl80211_parse_tx_bitrate_mask(struct genl_info *info, + struct nlattr *attrs[], + enum nl80211_attrs attr, struct cfg80211_bitrate_mask *mask) { struct nlattr *tb[NL80211_TXRATE_MAX + 1]; @@ -4296,14 +4302,14 @@ static int nl80211_parse_tx_bitrate_mask(struct genl_info *info, } /* if no rates are given set it back to the defaults */ - if (!info->attrs[NL80211_ATTR_TX_RATES]) + if (!attrs[attr]) goto out; /* The nested attribute uses enum nl80211_band as the index. This maps * directly to the enum nl80211_band values used in cfg80211. */ BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); - nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) { + nla_for_each_nested(tx_rates, attrs[attr], rem) { enum nl80211_band band = nla_type(tx_rates); int err; @@ -4803,7 +4809,9 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) return -EINVAL; if (info->attrs[NL80211_ATTR_TX_RATES]) { - err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate); + err = nl80211_parse_tx_bitrate_mask(info, info->attrs, + NL80211_ATTR_TX_RATES, + ¶ms.beacon_rate); if (err) return err; @@ -10561,7 +10569,8 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, if (!rdev->ops->set_bitrate_mask) return -EOPNOTSUPP; - err = nl80211_parse_tx_bitrate_mask(info, &mask); + err = nl80211_parse_tx_bitrate_mask(info, info->attrs, + NL80211_ATTR_TX_RATES, &mask); if (err) return err; @@ -11156,7 +11165,9 @@ static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) } if (info->attrs[NL80211_ATTR_TX_RATES]) { - err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate); + err = nl80211_parse_tx_bitrate_mask(info, info->attrs, + NL80211_ATTR_TX_RATES, + &setup.beacon_rate); if (err) return err; @@ -13982,6 +13993,38 @@ static int parse_tid_conf(struct cfg80211_registered_device *rdev, nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL]); } + if (attrs[NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE]) { + int idx; + enum nl80211_attrs attr; + + err = nl80211_check_tid_config_support(rdev, extack, peer, + attrs, tid_conf, + TX_RATE); + if (err) + return err; + idx = NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE; + tid_conf->txrate_type = nla_get_u8(attrs[idx]); + if (tid_conf->txrate_type != NL80211_TX_RATE_AUTOMATIC) { + /* Driver needs to take care of freeing this mask */ + tid_conf->mask = + kzalloc(sizeof(struct cfg80211_bitrate_mask), + GFP_KERNEL); + if (!tid_conf->mask) + return -ENOMEM; + + attr = + (enum nl80211_attrs)NL80211_TID_CONFIG_ATTR_TX_RATE; + err = nl80211_parse_tx_bitrate_mask(info, attrs, attr, + tid_conf->mask); + if (err) { + kfree(tid_conf->mask); + return err; + } + } else { + tid_conf->mask = NULL; + } + } + return 0; }