From nobody Mon Jan 29 22:18:09 2024 X-Original-To: wireless@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4TP2kx6Sr1z59Wf3 for ; Mon, 29 Jan 2024 22:18:49 +0000 (UTC) (envelope-from ccfreebsd@gmail.com) Received: from mail-lf1-f41.google.com (mail-lf1-f41.google.com [209.85.167.41]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1D4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4TP2kw2pJrz4bfw for ; Mon, 29 Jan 2024 22:18:48 +0000 (UTC) (envelope-from ccfreebsd@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=freebsd.org (policy=none); spf=pass (mx1.freebsd.org: domain of ccfreebsd@gmail.com designates 209.85.167.41 as permitted sender) smtp.mailfrom=ccfreebsd@gmail.com Received: by mail-lf1-f41.google.com with SMTP id 2adb3069b0e04-5100cb238bcso5828501e87.3 for ; Mon, 29 Jan 2024 14:18:48 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706566726; x=1707171526; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=WmrLxF1tSYQbkcn6WYtkCxOgqP5C/JkPO97GDhehHKg=; b=k64i43K18Ysbcx8x6kC34FeF/sVRNtwhwWclISkgYAE4fIlHVW5rsYoEEmM6Jl80FZ /EV73UCkzQsSamdPw1bEmyMDP1zUw9nWJXsxHWUTAc6eiiwgYn5+Ip+x3VO7hokZWxbD R8xPSgFH1tkxeaULsMytcsxuLd9PD5KFUiFmbAP/IlkTuSEofzIud9kY68+wx6jwvLa4 GP4DCLGeqBnMl+bXKz03Hcp0KnNgBpMJ8un7GeD92Xj+w99MmYu1O16GcTfdEmqSAKT5 LMXtHtV65h56bs3WCECCsNIvPe3HDAICaduUcWm+eJmDaDttG1ZMVUqKZqYNwLhzh7Y7 JUOg== X-Gm-Message-State: AOJu0Yxi5xBJHMPM5X4J+1xxZlWO5+7g7Q/Y3VWnCOwYCBDBvVMEn+Vn WBLbgZxP4pnWaTCy1+ylcPqQig2sFgMGlLgMnGqioINA1zvWmw4DqyD+zQX+vOY= X-Google-Smtp-Source: AGHT+IGjZpymID5BxoS414T7Y83gdeR5e+WUtGNi09adXMzokLMuUW3TiruDclY9T3UVCH3Ve/HxkQ== X-Received: by 2002:a05:6512:e8a:b0:511:f19:f0df with SMTP id bi10-20020a0565120e8a00b005110f19f0dfmr3160189lfb.29.1706566725857; Mon, 29 Jan 2024 14:18:45 -0800 (PST) Received: from mail-lf1-f41.google.com (mail-lf1-f41.google.com. [209.85.167.41]) by smtp.gmail.com with ESMTPSA id g16-20020a056512119000b0051119c078adsm25722lfr.231.2024.01.29.14.18.45 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 29 Jan 2024 14:18:45 -0800 (PST) Received: by mail-lf1-f41.google.com with SMTP id 2adb3069b0e04-5100cb238bcso5828473e87.3 for ; Mon, 29 Jan 2024 14:18:45 -0800 (PST) X-Received: by 2002:a05:6512:3b8b:b0:511:9ca:6d72 with SMTP id g11-20020a0565123b8b00b0051109ca6d72mr4412153lfv.59.1706566725522; Mon, 29 Jan 2024 14:18:45 -0800 (PST) List-Id: Discussions List-Archive: https://lists.freebsd.org/archives/freebsd-wireless List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-wireless@freebsd.org X-BeenThere: freebsd-wireless@freebsd.org MIME-Version: 1.0 From: Cheng Cui Date: Mon, 29 Jan 2024 17:18:09 -0500 X-Gmail-Original-Message-ID: Message-ID: Subject: Weekly Development report(Jan 22 ~ Jan 26) on the iwlwifi WiFi project To: wireless@freebsd.org Content-Type: multipart/alternative; boundary="00000000000075da3a06101d07fc" X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.71 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.81)[-0.805]; FORGED_SENDER(0.30)[cc@freebsd.org,ccfreebsd@gmail.com]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; DMARC_POLICY_SOFTFAIL(0.10)[freebsd.org : SPF not aligned (relaxed), No valid DKIM,none]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; RCVD_COUNT_THREE(0.00)[3]; MIME_TRACE(0.00)[0:+,1:+,2:~]; MISSING_XM_UA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; ARC_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; TO_DN_NONE(0.00)[]; FROM_NEQ_ENVFROM(0.00)[cc@freebsd.org,ccfreebsd@gmail.com]; FROM_HAS_DN(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[wireless@freebsd.org]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[wireless@freebsd.org]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.85.167.41:from]; TO_DOM_EQ_FROM_DOM(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[209.85.167.41:from,209.85.167.41:received] X-Rspamd-Queue-Id: 4TP2kw2pJrz4bfw --00000000000075da3a06101d07fc Content-Type: text/plain; charset="UTF-8" I was still focusing on the problem in PR 276083 which caused a timeout in iwlwifi firmware during 802.11n (11ng, 11na) association, thus failing 11n association. 1. Given the problem could be in an earlier command or a missing command, or a flag, etc, I am narrowing down the problem/learning scope. - Trying to print hcmds sequences together with some rx/tx calls and some mac80211_config_ops calls in Linux kernel. - With a separate monitor node to capture traffic packets in air, I am trying to understand the workflows near the 11ng hcmd (grp=5, cmd=22). - Most likely that hcmd is a response to an 802.11 management packet (Action code: Add Block Ack Request) after a success association in Linux, but I need to confirm. - Practicing trace-cmd in Linux kernel as well, the learning curve is long. - Bjoern offered help to take a look at the trace-cmd report as well. 2. Finished reviewing D43647 -- Best Regards, Cheng Cui --00000000000075da3a06101d07fc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I was still focusing on the problem in=C2= =A0PR 276083=C2=A0which caused a timeout in iwlwifi firmw= are during 802.11n (11ng, 11na) association,=C2=A0thus failing 11n associat= ion.
  1. Given the problem could be in an earlier command= or a missing command, or a flag, etc, I am narrowing down the problem/lear= ning scope.
    • Trying to print hcmds sequences together with some = rx/tx calls and some mac80211_config_ops calls in Linux kernel.
      • With a separate monitor node to capture traffic packets in air, I am tryin= g to understand the workflows near the 11ng hcmd (grp=3D5, cmd=3D22).<= li>Most likely that hcmd is a response to an 802.11 management packet (Acti= on code: Add Block Ack Request) after a success association in Linux, but I= need to confirm.
    • Practicing trace-cmd in Linux kernel as well, the= learning curve is long.
    • Bjoern offered help to take a look at the = trace-cmd report as well.
  2. Finished = reviewing=C2=A0D43647
--
Best Regards,
Cheng Cui
--00000000000075da3a06101d07fc--