From patchwork Thu Apr 30 22:20:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rajkumar Manoharan X-Patchwork-Id: 215761 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=-9.5 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,URIBL_BLOCKED,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 EE28EC47247 for ; Thu, 30 Apr 2020 22:21:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C8806205ED for ; Thu, 30 Apr 2020 22:21:31 +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="MRTHzQAI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727856AbgD3WVb (ORCPT ); Thu, 30 Apr 2020 18:21:31 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:18610 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727124AbgD3WVb (ORCPT ); Thu, 30 Apr 2020 18:21:31 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1588285290; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=DcGrV8HlAtF6+uZZ+2b5rHHKNTAIUmF3GlDI2uuQP2M=; b=MRTHzQAIKE/RXqgcP0Aj7j6sTZng87gV9DbVs7ouzxH2g3Mnjf+1JZG1vsCFkCqIMoQ6Z5yl hRWnRVmcwp17gOLWfeWOoAtlFPbmtB8t+vG/xeHNw0XnkT+TnCsdksrsWj0i0mafSQIJgBi2 6Eocay/swSS7N7nhcWuCf10o5Nw= 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 5eab4f5d.7f3fd531cd88-smtp-out-n03; Thu, 30 Apr 2020 22:21:17 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 23A36C432C2; Thu, 30 Apr 2020 22:21:16 +0000 (UTC) Received: from rmanohar-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rmanohar) by smtp.codeaurora.org (Postfix) with ESMTPSA id 71FB8C433BA; Thu, 30 Apr 2020 22:21:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 71FB8C433BA 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=rmanohar@codeaurora.org From: Rajkumar Manoharan To: johannes@sipsolutions.net, kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org, Rajkumar Manoharan Subject: [PATCH v2 08/11] mac80211: build HE operation with 6 GHz oper information Date: Thu, 30 Apr 2020 15:20:49 -0700 Message-Id: <1588285252-30034-8-git-send-email-rmanohar@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588285252-30034-1-git-send-email-rmanohar@codeaurora.org> References: <1588285252-30034-1-git-send-email-rmanohar@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add 6 GHz operation information (IEEE 802.11ax/D6.0, Figure 9-787k) while building HE operation element for non-HE AP. This field is used to determine channel information in the absence of HT/VHT IEs. Signed-off-by: Rajkumar Manoharan --- net/mac80211/ieee80211_i.h | 2 +- net/mac80211/mesh.c | 11 +++++--- net/mac80211/util.c | 63 +++++++++++++++++++++++++++++++++++++++++++--- 3 files changed, 68 insertions(+), 8 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 6517a56970b7..0bb442feb1db 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2175,7 +2175,7 @@ u8 *ieee80211_ie_build_he_cap(u8 *pos, const struct ieee80211_sta_he_cap *he_cap, u8 *end); u8 *ieee80211_ie_build_he_6ghz_band_cap(u8 *pos, u16 he_6ghz_cap); -u8 *ieee80211_ie_build_he_oper(u8 *pos); +u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef); int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, const struct ieee80211_supported_band *sband, const u8 *srates, int srates_len, u32 *rates); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 2ca34869538d..0cbe3260c5c1 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -565,6 +565,7 @@ int mesh_add_he_oper_ie(struct ieee80211_sub_if_data *sdata, { const struct ieee80211_sta_he_cap *he_cap; struct ieee80211_supported_band *sband; + u32 len; u8 *pos; sband = ieee80211_get_sband(sdata); @@ -578,11 +579,15 @@ int mesh_add_he_oper_ie(struct ieee80211_sub_if_data *sdata, sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10) return 0; - if (skb_tailroom(skb) < 2 + 1 + sizeof(struct ieee80211_he_operation)) + len = 2 + 1 + sizeof(struct ieee80211_he_operation); + if (sdata->vif.bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) + len += sizeof(struct ieee80211_he_oper_6ghz_op_info); + + if (skb_tailroom(skb) < len) return -ENOMEM; - pos = skb_put(skb, 2 + 1 + sizeof(struct ieee80211_he_operation)); - ieee80211_ie_build_he_oper(pos); + pos = skb_put(skb, len); + ieee80211_ie_build_he_oper(pos, &sdata->vif.bss_conf.chandef); return 0; } diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 2bcebe672c0d..90b8c42b1aa8 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2977,13 +2977,18 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, return pos + sizeof(struct ieee80211_vht_operation); } -u8 *ieee80211_ie_build_he_oper(u8 *pos) +u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef) { struct ieee80211_he_operation *he_oper; + struct ieee80211_he_oper_6ghz_op_info *he_6ghz_op; u32 he_oper_params; + u8 ie_len = 1 + sizeof(struct ieee80211_he_operation); + + if (chandef->chan->band == NL80211_BAND_6GHZ) + ie_len += sizeof(struct ieee80211_he_oper_6ghz_op_info); *pos++ = WLAN_EID_EXTENSION; - *pos++ = 1 + sizeof(struct ieee80211_he_operation); + *pos++ = ie_len; *pos++ = WLAN_EID_EXT_HE_OPERATION; he_oper_params = 0; @@ -2993,16 +2998,66 @@ u8 *ieee80211_ie_build_he_oper(u8 *pos) IEEE80211_HE_OPERATION_ER_SU_DISABLE); he_oper_params |= u32_encode_bits(1, IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); + if (chandef->chan->band == NL80211_BAND_6GHZ) + he_oper_params |= u32_encode_bits(1, + IEEE80211_HE_OPERATION_6GHZ_OP_INFO); he_oper = (struct ieee80211_he_operation *)pos; he_oper->he_oper_params = cpu_to_le32(he_oper_params); /* don't require special HE peer rates */ he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); + pos += sizeof(struct ieee80211_he_operation); - /* TODO add VHT operational and 6GHz operational subelement? */ + if (chandef->chan->band != NL80211_BAND_6GHZ) + goto out; - return pos + sizeof(struct ieee80211_vht_operation); + /* TODO add VHT operational */ + he_6ghz_op = (struct ieee80211_he_oper_6ghz_op_info *)pos; + he_6ghz_op->min_rate = 6; /* 6 Mbps */ + he_6ghz_op->primary_chan = + ieee80211_frequency_to_channel(chandef->chan->center_freq); + he_6ghz_op->center_freq_seg0_idx = + ieee80211_frequency_to_channel(chandef->center_freq1); + if (chandef->center_freq2) + he_6ghz_op->center_freq_seg1_idx = + ieee80211_frequency_to_channel(chandef->center_freq2); + else + he_6ghz_op->center_freq_seg1_idx = 0; + + switch (chandef->width) { + case NL80211_CHAN_WIDTH_160: + /* Convert 160 MHz channel width to new style as interop + * workaround. + */ + he_6ghz_op->control = + IEEE80211_HE_6GHZ_CHANWIDTH_160MHZ_80P80MHZ; + he_6ghz_op->center_freq_seg1_idx = + he_6ghz_op->center_freq_seg0_idx; + if (chandef->chan->center_freq < chandef->center_freq1) + he_6ghz_op->center_freq_seg0_idx -= 8; + else + he_6ghz_op->center_freq_seg0_idx += 8; + fallthrough; + case NL80211_CHAN_WIDTH_80P80: + he_6ghz_op->control = + IEEE80211_HE_6GHZ_CHANWIDTH_160MHZ_80P80MHZ; + break; + case NL80211_CHAN_WIDTH_80: + he_6ghz_op->control = IEEE80211_HE_6GHZ_CHANWIDTH_80MHZ; + break; + case NL80211_CHAN_WIDTH_40: + he_6ghz_op->control = IEEE80211_HE_6GHZ_CHANWIDTH_40MHZ; + break; + default: + he_6ghz_op->control = IEEE80211_HE_6GHZ_CHANWIDTH_20MHZ; + break; + } + + pos += sizeof(struct ieee80211_he_oper_6ghz_op_info); + +out: + return pos; } bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,