From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D06E8C54E94 for ; Tue, 24 Jan 2023 14:54:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235137AbjAXOyi (ORCPT ); Tue, 24 Jan 2023 09:54:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40788 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235126AbjAXOyg (ORCPT ); Tue, 24 Jan 2023 09:54:36 -0500 Received: from mail-pg1-x54a.google.com (mail-pg1-x54a.google.com [IPv6:2607:f8b0:4864:20::54a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1EF0F86BB for ; Tue, 24 Jan 2023 06:54:36 -0800 (PST) Received: by mail-pg1-x54a.google.com with SMTP id 193-20020a6305ca000000b004cece0d0d64so7018439pgf.13 for ; Tue, 24 Jan 2023 06:54:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=D+RETE+69kvrgycMfRIlSWQ8SLcXQgvebrqZZkcm/1I=; b=dcOa8mBrB2R3fBeIf6EfIgUc/9jOM9PcYvS5oPT4bvUf85CAE+DAqMyMfWkPbwRyvB 4bE87wnIjd5s+1aavNWMoS7ya9kgdpQWY1kOfrReamVa7r7CvqFi1koO4FkT9J50cPUW L+n7olUVcNUc48mHWXAI0uPS2ICdDgkj1CWoqaOZSwUab5LXcVe8QKfDE7Y532Ss/lLj ZSgyY22LvRYQf/GrYPZ1e4icOF63lPeW+nCqDqM47zBbnKJG4ZElzAjc0xfGLx0rtUut zUmvii5hQ6ZoRPLwVf81KYka1DMtP/WW807VD0WFadgB+/GOeeFa//o/YhZ20v2VqM+H Ri8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=D+RETE+69kvrgycMfRIlSWQ8SLcXQgvebrqZZkcm/1I=; b=QKrhyNc7g+ypjyc61OHnt49tvkLcsv1z7e5Z0zLlHVy8S/pCzc2wIfrN1j9I/G6Yx6 NCeA5hnfVU2y0qW1AaoGwccyVhst1CrybvSBdZu1IX4S1x2SW6/2nHUNqyuE9KHMucYF ie+EOGWYPzUID52dXHnphjpWYalVu9dXHdAAvtwX0Z+uEdmQiFrKXmFBDATwcEJ8eYKd FI3waA6PFGKXrI7PtsqT0mGfy+b6bW6kwL8HO8fG6Cj3rzn91Yv9j7rYIS0huR8y/k7d jEtSAIxXfj5thUA5jql0rKPQdpabHHn06eWiRWGk7hxJfXV2b2RxFgVjDULA5QkdbnhL fBOQ== X-Gm-Message-State: AO0yUKV++K0dp6MUm0jx916bG1sWKyr+YO4LTcvFc5RG6/x9RAfOtN4O jFqV+rSDihcpzCDSjHSni59t+ZmgtgA= X-Google-Smtp-Source: AK7set+yUN/11i5xH7MygJRSyExHDAD18x9cvVt4hkR9XZaD35jB5irY5QYZ5IcXeALmfVx7NlGKu6o7LNs= X-Received: from jaewan1.c.googlers.com ([fda3:e722:ac3:cc00:3:22c1:c0a8:e59]) (user=jaewan job=sendgmr) by 2002:a17:90a:a205:b0:229:f43c:4049 with SMTP id u5-20020a17090aa20500b00229f43c4049mr37838pjp.0.1674572075382; Tue, 24 Jan 2023 06:54:35 -0800 (PST) Date: Tue, 24 Jan 2023 14:54:28 +0000 Mime-Version: 1.0 X-Mailer: git-send-email 2.39.0.246.g2a6d74b583-goog Message-ID: <20230124145430.365495-1-jaewan@google.com> Subject: [PATCH v6 0/2] mac80211_hwsim: Add PMSR support From: Jaewan Kim To: gregkh@linuxfoundation.org, johannes@sipsolutions.net, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Cc: kernel-team@android.com, adelva@google.com, Jaewan Kim Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Dear Kernel maintainers, First of all, thank you for spending your precious time for reviewing my changes, and also sorry for my mistakes in previous patchsets. Let me propose series of CLs for adding PMSR support in the mac80211_hwsim. PMSR (peer measurement) is generalized measurement between STAs, and currently FTM (fine time measurement or flight time measurement) is the one and only measurement. FTM measures the RTT (round trip time) and FTM can be used to measure distances between two STAs. RTT is often referred as 'measuring distance' as well. Kernel had already defined protocols for PMSR in the include/uapi/linux/nl80211.h and relevant parsing/sending code are in the net/wireless/pmsr.c, but they are only used in intel's iwlwifi driver. CLs are tested with iw tool on Virtual Android device (a.k.a. Cuttlefish). Hope this explains my CLs. Many Thanks, -- 2.39.0.246.g2a6d74b583-goog V5 -> V6: Added per CL change history. V4 -> V5: Fixed style V3 -> V4: Added detailed explanation to cover letter and per CL commit messages, includes explanation of PMSR and FTM. Also fixed memory leak. V1 -> V3: Initial commits (include resends) Jaewan Kim (2): mac80211_hwsim: add PMSR capability support mac80211_hwsim: handle FTM requests with virtio drivers/net/wireless/mac80211_hwsim.c | 826 +++++++++++++++++++++++- drivers/net/wireless/mac80211_hwsim.h | 56 +- include/net/cfg80211.h | 20 + net/wireless/nl80211.c | 28 +- 4 files changed, 912 insertions(+), 18 deletions(-)