From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B5D02957A0 for ; Tue, 17 Jun 2025 23:19:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750202390; cv=none; b=sGepC/UKSSaxPEMLX3WxAVnX/dnsQuycmZLqjjXfHRSN6WHRJB6gnui4sl4wv4O7HH9i2LhXzCORIj40YfYaC7FFkmrtadT5SkrevyCmlQ/J437iL4B0OTK+FSkfgi8aazvCMgFTX3U7nEG8j6/QyKnzvBNgQU5HW6rvTspywFM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750202390; c=relaxed/simple; bh=xwErtfx1oZZk5KtXH+yo33f7wFefCput2SOyitQeFc4=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=OBm6LY39xzyo3Tvg7WIHDEQHLWoUCM75YxryGTrSxefsryvuM8ROP1EpWIIZR+oEH8F7xH2iXIXIicKColyWOOdXeEj4gAwEb0oLW7jRGmYNkAOsBB+vNJrlEeOG/nKLl/a5Dj3At1zKelX/TiEVmZnnGDmDfml8nF7whQ5tMXs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=H8j89+jY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="H8j89+jY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8A248C4CEE3; Tue, 17 Jun 2025 23:19:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750202389; bh=xwErtfx1oZZk5KtXH+yo33f7wFefCput2SOyitQeFc4=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=H8j89+jYdF3eO2z6jY1PU9ZYXfnzaZYd1l5CqHpR40YBHFsYWx3mvZHK2nlBULwNQ YQwE33fFU12FXWF6KANceNcGcfZ305rAwqQdrtaMj661082ztZt8ETMEQIfiMjN/jQ 9js+I1w+QmwUapwpbWMJ196clA/LNxogdTKp9Z6tfQkoEUoM9YJQa2Ow48JBm7nNs5 OeZbe4yn7JOCDQRMnPAFRPsVUQBoHwDNmAK1tutbHFpoLWCUsyPXPwbN/ad/BR2tqe ywMQkOOqrBQ3wkCVldrytIgICwJ32s9tIAL2h8K8aNjkhAl07G7zHoND/Tb696Mqsz fnO1hoVLFRAsw== Date: Tue, 17 Jun 2025 16:19:48 -0700 From: Jakub Kicinski To: Neal Cardwell Cc: David Miller , Eric Dumazet , netdev@vger.kernel.org, Neal Cardwell , Yuchung Cheng Subject: Re: [PATCH net-next v2 1/3] tcp: remove obsolete and unused RFC3517/RFC6675 loss recovery code Message-ID: <20250617161948.3a0ae368@kernel.org> In-Reply-To: <20250615001435.2390793-2-ncardwell.sw@gmail.com> References: <20250615001435.2390793-1-ncardwell.sw@gmail.com> <20250615001435.2390793-2-ncardwell.sw@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Sat, 14 Jun 2025 20:14:33 -0400 Neal Cardwell wrote: > + RACK: 0x1 enables RACK loss detection, for fast detection of lost > + retransmissions and tail drops, and resilience to > + reordering. currrently, setting this bit to 0 has no currently ^ fixed when applying > + effect, since RACK is the only supported loss detection > + algorithm.