From patchwork Sat Nov 2 06:07:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tamizh chelvam X-Patchwork-Id: 11224041 X-Patchwork-Delegate: johannes@sipsolutions.net Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DC3AB15AB for ; Sat, 2 Nov 2019 06:08:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B11F020862 for ; Sat, 2 Nov 2019 06:08:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="WOUa5ls2"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="YJcxc1Xg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727121AbfKBGIH (ORCPT ); Sat, 2 Nov 2019 02:08:07 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:37490 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725820AbfKBGIG (ORCPT ); Sat, 2 Nov 2019 02:08:06 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 7A41161549; Sat, 2 Nov 2019 06:08:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1572674885; bh=K89Xyn91bB7ybsklN+PqW4i7qZ8u2rcPRiQCw1m3hsk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WOUa5ls2quLylGGD4fo5v0fbnHVmf4rTM6+ISL9gTz8Jrw/DBRuGExZtw97d1TzOQ FsW8ZJrmPAhun3qdFqTOLs2tR8A0Q/7LKYFW4eTWLuxpunOJlXKSuh8JZxMU/6ZiXT d+Ty7Vcqxo721hayU7pUBmzjE4hI5/ly4ShWlqjo= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 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@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 20274614E7; Sat, 2 Nov 2019 06:08:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1572674884; bh=K89Xyn91bB7ybsklN+PqW4i7qZ8u2rcPRiQCw1m3hsk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YJcxc1Xg+mCsFJ2u6E5tuTkxsp1fzafiozzs29UlWAZBzTV35CRn1KgTLd6zpv1iu VC8z6h9JFncTNAnurrLDDUmKRDrSuMzEEBoGZGcp45NCFustIxCHKBg9TzWQoqvOO3 fJyRTJ+osUOpAt2/1KH6yxQkoQPzkKzJ31fOVsFA= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 20274614E7 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=tamizhr@codeaurora.org From: Tamizh chelvam To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Tamizh chelvam Subject: [PATCHv7 4/6] nl80211: Add netlink attribute to enable/disable RTS_CTS Date: Sat, 2 Nov 2019 11:37:48 +0530 Message-Id: <1572674870-23517-5-git-send-email-tamizhr@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1572674870-23517-1-git-send-email-tamizhr@codeaurora.org> References: <1572674870-23517-1-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 Introduce NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL in nl80211_attr_tid_config to accept TID specific RTS_CTS enable/disable configuration through NL80211_CMD_SET_TID_CONFIG command. TID for which the RTS_CTS control configuration is to be applied is passed in NL80211_TID_CONFIG_ATTR_TID attribute. When the user-space wants this configuration peer specific rather than being applied for all the connected stations, MAC address of the peer can be passed in NL80211_ATTR_MAC attribute. Driver supporting this feature should advertise NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL and supporting per-STA data TID RTS_CTS configuration should advertise NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL. Signed-off-by: Tamizh chelvam --- include/net/cfg80211.h | 3 +++ include/uapi/linux/nl80211.h | 22 ++++++++++++++++++++++ net/wireless/nl80211.c | 16 ++++++++++++++++ 3 files changed, 41 insertions(+) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index baed260..deeb1c1 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -600,6 +600,7 @@ enum ieee80211_tid_conf_mask { IEEE80211_TID_CONF_NOACK = BIT(0), IEEE80211_TID_CONF_RETRY = BIT(1), IEEE80211_TID_CONF_AMPDU = BIT(2), + IEEE80211_TID_CONF_RTSCTS = BIT(3), }; /** @@ -611,6 +612,7 @@ enum ieee80211_tid_conf_mask { * @retry_long: retry count value * @retry_short: retry count value * @ampdu: Enable/Disable aggregation + * @rtscts: Enable/Disable RTS/CTS */ struct ieee80211_tid_cfg { u8 tid; @@ -619,6 +621,7 @@ struct ieee80211_tid_cfg { int retry_long; int retry_short; u8 ampdu; + u8 rtscts; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 32ca476..f75f243 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -4776,6 +4776,21 @@ enum nl80211_tid_config { * NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL and supporting per station * aggregation configuration should advertise * NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL. + * @NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL: Enable/Disable RTS_CTS for the TID + * specified in %%NL80211_TID_CONFIG_ATTR_TID. It is u8 type, if the + * peer MAC address is passed in %NL80211_ATTR_MAC, then this + * configuration is applied to the data frame for the tid to that + * connected station. + * Station specific RTS_CTS configuration is valid only for STA's + * current connection. i.e. the configuration will be reset to default when + * the station connects back after disconnection/roaming. + * when user-space does not include %NL80211_ATTR_MAC, this configuration + * should be treated as per-netdev configuration. This configuration will + * be cleared when the interface goes down and on the disconnection from a + * BSS. Driver supporting this feature should advertise + * NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL and supporting per station + * RTS_CTS configuration should advertise + * NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL. */ enum nl80211_tid_config_attr { __NL80211_TID_CONFIG_ATTR_INVALID, @@ -4785,6 +4800,7 @@ enum nl80211_tid_config_attr { NL80211_TID_CONFIG_ATTR_RETRY_SHORT, NL80211_TID_CONFIG_ATTR_RETRY_LONG, NL80211_TID_CONFIG_ATTR_AMPDU_CTRL, + NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL, /* keep last */ __NL80211_TID_CONFIG_ATTR_AFTER_LAST, @@ -5614,6 +5630,10 @@ enum nl80211_feature_flags { * aggregation control(enable/disable). * @NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL: Driver supports per STA * specific TID aggregation control(enable/disable). + * @NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL: Driver supports TID specific + * RTS_CTS control(enable/disable). + * @NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL: Driver supports STA specific + * RTS_CTS control(enable/disable). * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. @@ -5666,6 +5686,8 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG, NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL, NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL, + NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL, + NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 5ac8862..abce915 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -331,6 +331,8 @@ static int validate_ie_attr(const struct nlattr *attr, [NL80211_TID_CONFIG_ATTR_RETRY_LONG] = { .type = NLA_U8}, [NL80211_TID_CONFIG_ATTR_AMPDU_CTRL] = NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), + [NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL] = + NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), }; const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { @@ -13898,6 +13900,20 @@ static int parse_tid_conf(struct cfg80211_registered_device *rdev, tid_conf->ampdu = nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_AMPDU_CTRL]); } + + if (attrs[NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL]) { + err = nl80211_check_tid_config_support(rdev, extack, peer, + attrs[NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL], + NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL, + NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL); + if (err) + return err; + + tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_RTSCTS; + tid_conf->rtscts = + nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL]); + } + return 0; }