From patchwork Wed May 13 08:11:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tamizh chelvam X-Patchwork-Id: 11545341 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 5D99314B4 for ; Wed, 13 May 2020 08:14:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 41D1320753 for ; Wed, 13 May 2020 08:14:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="HEoeBoxs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730358AbgEMIOB (ORCPT ); Wed, 13 May 2020 04:14:01 -0400 Received: from mail27.static.mailgun.info ([104.130.122.27]:24664 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726092AbgEMIOB (ORCPT ); Wed, 13 May 2020 04:14:01 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1589357639; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=lCnfalO4J+zN/r8Zq54RplN4M6Qd+WJOcoSbXTRe1sw=; b=HEoeBoxsTvAIRLf5fbVAwlV2I8p3L2s7nJTwZL7bOTpE4ZF4tGsLQg4ePhqi1xXtNKWXFgwi iscmmmTuduNqT73jJ/fgT+phmg2h6OneFWAx2srlNmxOmJrqUJHHA7udkoAzGOHLnMU1jIqj 9XDIHdaChBuEbWp+iH35ve4eAig= X-Mailgun-Sending-Ip: 104.130.122.27 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 5ebbac35.7f72dd9e6110-smtp-out-n03; Wed, 13 May 2020 08:13:41 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 90CD9C433F2; Wed, 13 May 2020 08:13:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from cheath10p342229-lin.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 903A0C433D2; Wed, 13 May 2020 08:13:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 903A0C433D2 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: [PATCHv2] nl80211: Add support to configure TID specific Tx rate configuration Date: Wed, 13 May 2020 13:41:44 +0530 Message-Id: <1589357504-10175-1-git-send-email-tamizhr@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org This patch adds support to configure per TID Tx Rate configuration through NL80211_TID_CONFIG_ATTR_TX_RATE* attributes. And it uses nl80211_parse_tx_bitrate_mask api to validate the Tx rate mask. Signed-off-by: Tamizh Chelvam --- v2: * Added documentation for new parameters in struct cfg80211_tid_cfg include/net/cfg80211.h | 29 +++++++++++-------- include/uapi/linux/nl80211.h | 21 ++++++++++++++ net/wireless/nl80211.c | 64 +++++++++++++++++++++++++++++++----------- 3 files changed, 85 insertions(+), 29 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index a82fc59..7c3bf98 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -630,6 +630,19 @@ struct cfg80211_chan_def { u16 freq1_offset; }; +/* + * cfg80211_bitrate_mask - masks for bitrate control + */ +struct cfg80211_bitrate_mask { + struct { + u32 legacy; + u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN]; + u16 vht_mcs[NL80211_VHT_NSS_MAX]; + enum nl80211_txrate_gi gi; + } control[NUM_NL80211_BANDS]; +}; + + /** * struct cfg80211_tid_cfg - TID specific configuration * @config_override: Flag to notify driver to reset TID configuration @@ -642,6 +655,8 @@ struct cfg80211_chan_def { * @retry_short: retry count value * @ampdu: Enable/Disable aggregation * @rtscts: Enable/Disable RTS/CTS + * @txrate_type: Tx bitrate mask type + * @txrate_mask: Tx bitrate to be applied for the TID */ struct cfg80211_tid_cfg { bool config_override; @@ -651,6 +666,8 @@ struct cfg80211_tid_cfg { u8 retry_long, retry_short; enum nl80211_tid_config ampdu; enum nl80211_tid_config rtscts; + enum nl80211_tx_rate_setting txrate_type; + struct cfg80211_bitrate_mask txrate_mask; }; /** @@ -1005,18 +1022,6 @@ struct cfg80211_acl_data { struct mac_address mac_addrs[]; }; -/* - * cfg80211_bitrate_mask - masks for bitrate control - */ -struct cfg80211_bitrate_mask { - struct { - u32 legacy; - u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN]; - u16 vht_mcs[NL80211_VHT_NSS_MAX]; - enum nl80211_txrate_gi gi; - } control[NUM_NL80211_BANDS]; -}; - /** * enum cfg80211_ap_settings_flags - AP settings flags * diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 9679d561..8fe0d27 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -4816,6 +4816,17 @@ enum nl80211_tid_config { NL80211_TID_CONFIG_DISABLE, }; +/* 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_attr - TID specific configuration. * @NL80211_TID_CONFIG_ATTR_PAD: pad attribute for 64-bit values * @NL80211_TID_CONFIG_ATTR_VIF_SUPP: a bitmap (u64) of attributes supported @@ -4850,6 +4861,14 @@ enum nl80211_tid_config { * @NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL: Enable/Disable RTS_CTS for the TIDs * specified in %NL80211_TID_CONFIG_ATTR_TIDS. It is u8 type, using * the values from &nl80211_tid_config. + * @NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE: This attribute will be useful + * to notfiy the driver that what type of txrate should be used + * for the TIDs specified in %NL80211_TID_CONFIG_ATTR_TIDS. using + * the values form &nl80211_tx_rate_setting. + * @NL80211_TID_CONFIG_ATTR_TX_RATE: Data frame TX rate mask should be applied + * with the parameters passed through %NL80211_ATTR_TX_RATES. + * configuration is applied to the data frame for the tid to that connected + * station. */ enum nl80211_tid_config_attr { __NL80211_TID_CONFIG_ATTR_INVALID, @@ -4863,6 +4882,8 @@ 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, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 3d27b24..1759569 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -331,6 +331,18 @@ 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_VIF_SUPP] = { .type = NLA_U64 }, @@ -345,6 +357,10 @@ 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] = { @@ -4413,19 +4429,9 @@ 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]; @@ -4456,14 +4462,14 @@ 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; @@ -4968,7 +4974,9 @@ 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; @@ -10749,7 +10757,8 @@ 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; @@ -11355,7 +11364,9 @@ 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; @@ -14127,6 +14138,25 @@ 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; + + 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) { + attr = + (enum nl80211_attrs)NL80211_TID_CONFIG_ATTR_TX_RATE; + err = nl80211_parse_tx_bitrate_mask(info, attrs, attr, + &tid_conf->txrate_mask); + if (err) + return err; + + tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_TX_RATE); + } + tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE); + } + if (peer) mask = rdev->wiphy.tid_config_support.peer; else