From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 D111B2A1D8 for ; Tue, 25 Feb 2025 07:50:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740469845; cv=none; b=D8i8CsmnlTaF8Cn+ArIfWy6ZvfSdA+lZKdxojo8o9qwawHp/RjiRHSdM4/IPxSodq7D4OjIKzLHJbZxLTcGaGPdYp0eVLJRibk+fbo/NcvyYJJ0B2aYtwIfvwNtVnM1QVUhBx5yzPPGby2bZs0CXPtAN9BvJbPttoLR9EuuUpKg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740469845; c=relaxed/simple; bh=/AlSEgSDOXBnaGrfxeUnY9+FCGxh6v470RpBdGOMQ/c=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=t9dQoAosA88XlqvmApmcdntrgig8Is/dxeWd1konQWnKdheVCaZsPtrN5CpHnhcbXYg+QPJvJfVtTWnm4u+BV2Q94dmvC05+nd8y33GpPzEu5n8g0PbIjiCvZyi10O1SYoh1i0NSOt6PbM7D2XEgevb7e9tCF7u33rSovOdg0PY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=D0Za6qyx; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=HmATznfr; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="D0Za6qyx"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="HmATznfr" From: Kurt Kanzenbach DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1740469841; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=/AlSEgSDOXBnaGrfxeUnY9+FCGxh6v470RpBdGOMQ/c=; b=D0Za6qyxwz9wHMA3UYklfzOmtt5BnJrd485nl5pOFJNMLlENZvAcMptjI08MDo5y/OQHJC oFimYx/g3gUqbsxbK/5cZb0qiYnTTMWx90cZgFogxWrVijfBX9nV4gvypAPvtYurH9JWMX 5177gAffUDftApjh4FkC7I+IHb58kr/dySeAacoI7As1jismniEPDtB4+OptG0/v+JTir/ mcJHWvDOn9wrIxPMA2p+aFKigYWZwL5IseA0b9/ijx/f8MBz8nK2MxAvE+kJosfsHsQNP6 JFd1X92KecxxuvvcB/rUxxWZ3Ig+2mIjC54aOjcScWbbZrkHtdqADF2194P8GA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1740469841; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=/AlSEgSDOXBnaGrfxeUnY9+FCGxh6v470RpBdGOMQ/c=; b=HmATznfrgc51qXcH7B7/huWm3tJKPqcBLs2v7EpaOJrWqiFbm9qHIz/M9vu/nGBbvkL+uP Sx+/LIj+40ZQVpDA== To: Paul Menzel Cc: Tony Nguyen , Przemek Kitszel , Faizal Rahim , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Sebastian Andrzej Siewior , intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org Subject: Re: [Intel-wired-lan] [PATCH iwl-next v2] igc: Change Tx mode for MQPRIO offloading In-Reply-To: <1e8e6855-0c87-4007-aadd-bdcad51f97cf@molgen.mpg.de> References: <20250224-igc_mqprio_tx_mode-v2-1-9666da13c8d8@linutronix.de> <1e8e6855-0c87-4007-aadd-bdcad51f97cf@molgen.mpg.de> Date: Tue, 25 Feb 2025 08:50:38 +0100 Message-ID: <87y0xuzcmp.fsf@kurt.kurt.home> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Mon Feb 24 2025, Paul Menzel wrote: > Dear Kurt, > > > Thank you for the patch. > > > Am 24.02.25 um 11:05 schrieb Kurt Kanzenbach: >> The current MQPRIO offload implementation uses the legacy TSN Tx mode. In >> this mode the hardware uses four packet buffers and considers queue >> priorities. > > If I didn=E2=80=99t miss anything, later on you do not specify how many b= uffers=20 > are used after changing the Tx mode. After changing the Tx mode, the NIC uses four packet buffers as well. I'll add it to the commit message. 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