From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=91.218.175.45 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794340661; b=x+hGn5jRSsw3tEmvVn+5zL9uDRi5GT9J4MCN3y19l4z4e3uVYTqAiWhx648PTQut5zzh JRanq6NzaAd3csduZbzOPJJIp8pRpbsFYdhqayFDrDdMqXReyiaZ0DKw5zwZPPSh8ghgY 9jG2pxKZ8c2aSzkF1DktJa0IO+exxkKYBgmTkVT7yGax88prtiZMzc3H/9OX+Ab4lacjP PgbqlBjPytt8q8RD5ZwNTDN6EpxzKHNNjC4BSW4Jf9U03P7ughMOWgrp96+qYgZlKYgz1 jeFD812HSqZ7g8TZNZjv406/kkaZPY1OV3V2taRocISfWYU4j/EYQIdQnaEWD51H1BA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794340661; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:Date:From:To:CC:Subject:In-Reply-To: References:Message-ID:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=lMR0kUfdjZMJR+0oWa9sSX/UZwt66TqDj+0eyBoDUXY=; b=wK9x0XEyMLB6P+tqOKNoXpMet784BDeQ44jUpDsw0syxUhMbbKQR/SRUQvo/JG/E4muU cTRQx9Wzslm+FQy+kOb1XuYiuie7FZE2RpApXf29+LM2id9w+mpV6btx89rupmq1RDMvS kXDHNWajB9rqWnkJdKO94oHf2oEnwfwcvUo0cL+jRsYXHp5KjgGBjKrPlyCZ4E9SXHKDz xYBJ4dxCGXQSqOCEyWrXsY+sygcZxhMIE6wulsQMw/YeXMfAiaHRWamGaAP1puKJypOgq NqEhnQrKQjPiAzVYC/FpXjKoOVIOWsTbKMV+2tp4P5eKMMZIDKT2Iw79R5OMWqaW3pQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=IDKIMGnu; arc=none smtp.remote-ip=91.218.175.45 Received: from mta0.migadu.com (out-45.mta0.migadu.com [91.218.175.45]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DFC84606A320 for ; Tue, 10 Nov 2026 19:57:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org DFC84606A320 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=IDKIMGnu X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=taf5xIdsLawaO6DyBudM+ObdMWnrDPJhCJJ72C3rWS4=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1794340657; v=1; x=1794945457; b=IDKIMGnuQxplsYHIq7Bg32as0bnD7Nk7iW2TxaAcH0gNT5BqsKYTr2I07Ar5PX9qA8T0Xc6r MzJoI9FKynBUAF0j5XfsO93IGIrhWiav4E/hO9FTtfXIA+YX2pjK3F4CEblmuhAlz0Rgpjlza7J 9LbHx/3Jn9G8nyyMb7LOIdw0= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 13475ae9d2aa94b6; Tue, 10 Nov 2026 19:57:37 +0000 X-Mizu-Trace-ID: 13475ae9d2aa94b6 X-Migadu-Flow: FLOW_OUT Date: Tue, 10 Nov 2026 20:57:32 +0100 From: Luka Gejak To: Bitterblue Smith , Ho Jie Feng , Ping-Ke Shih CC: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org Subject: =?US-ASCII?Q?Re=3A_=5BPATCH_rtw-next_v2_6/7=5D_wifi=3A_rtw88=3A_88?= =?US-ASCII?Q?xxa=3A_adapt_channel_sensing_to_receiver_gain?= In-Reply-To: <45407e4f-9009-4f0b-a9a8-58b7052d25a1@gmail.com> References: <20261031070950.425176-1-hjf3108@gmail.com> <20261031070950.425176-7-hjf3108@gmail.com> <4ada79186cd882a6d3344c43579e5addc4d4e644@linux.dev> <3bd7d396-bb54-41bc-890a-bfeab90dca3a@gmail.com> <1d7fe388a84ba7a078efbf1972869d63cb8234ea@linux.dev> <45407e4f-9009-4f0b-a9a8-58b7052d25a1@gmail.com> Message-ID: X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Hi Bitterblue and Jie Feng, On November 10, 2026 3:36:35 PM GMT+01:00, Bitterblue Smith wrote: >On 06/11/2026 22:27, Luka Gejak wrote: >> November 6, 2026 at 8:46 PM, "Bitterblue Smith" > wrote: >> >> JP. Bitterblue, is the adapter on a USB 3 port, and do you see the LPS >> failures on 5 GHz as well? > > It's in a USB 2 port. I am seeing the LPS failures on 5 GHz too. > Channel 100, 80 MHz wide. Thanks, that rules out the USB 3 idea. My next guess is the lower bound. Under ETSI the L2H starts 37 dB below normal mode and is then raised to at least dm_info->l2h_th_lb, which is only 2 above a floor measured once at power on, on 2.4 GHz at 20 MHz with the LNA off. At 80 MHz that may be close to the noise, and with H2L 7 lower EDCCA may stay busy. In LPS the firmware can switch the RF off, and in the watchdog the ADC mask toggle only runs after rtw_leave_lps(), so a busy EDCCA from sleep would still block the null frame. Bitterblue, could you try debug_mask=0x8000 to see whether L2H sits at that bound (printed as "EDCCA L2H floor") when it fails, and maybe EDCCA_DC_BACKOFF_88XXA raised from 2 to 8? Jie Feng, until this is figured out, keeping 88xxa on the normal thresholds like the vendor driver does by default, or leaving this patch out of v3, seems to be the safest option. Best regards, Luka Gejak