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 CA84424B28; Mon, 24 Nov 2025 09:49:51 +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=1763977791; cv=none; b=WKB2JKgC9cO/65UHEs/tPnuunTiw0pPpBwfqGWs6Ed3BXDGiqqnRCExqaFxYYXSguk2/1By/6f5aAYPZvvRavad4WXvNnvOlfZf0vp16AUTFqtq9MjWnRDafwi1rRYTq/a4NDvWMom+233jNV9lanGS2aMbWiJ9GsSxamnEnKbY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763977791; c=relaxed/simple; bh=e0Rfgj366tJxe1xsMBXGVrkz7jJATsofvCJET5b+Jts=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=c0pc+gMSsQOsHxVpyMGSnb+kC4nDbjfcbvo2xsVKD1t8Socbcn2NzbuV913AJZI44yhdOmRFTby0BqCWnedOYYbq4hMNm3mRUVtPgV64fDqfRE/nzCYjROyUnO25xJBI7iN5dMcDM3FvRJp8tW2jacYGU1Ufl/wYZov/67tNo2c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CZQpsh8t; 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="CZQpsh8t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 165A9C4CEF1; Mon, 24 Nov 2025 09:49:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763977791; bh=e0Rfgj366tJxe1xsMBXGVrkz7jJATsofvCJET5b+Jts=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=CZQpsh8tusQGHYy87IQbB12/uZyISK2efxLt05bMvy6mIeMUIC1mBpVhhUFerRFB+ 018dT15yOy/onqeQ6NsERRsh0KnxXLUt/WDGf2qYEchZoF4d36nj6pi6BzcexdSgHK 9Nj7vcHtBl7HieT4EBiuSEwooNsa6Xul+5g4gV+ZMshkEFu+BDKuaFLeJtH8clu+/O rtTTxpI+llZ3UZXD225zpleXnnVBGSqr13zMhFImf6b9YqKPkHgpxYuPcljEx3gXnB GLU1VtHBmF2V+ICTZWr/Qohw1/HQpts2pGKioMa6eKGGuvjUnBRE9DjwWJgBK8AIo7 EvWRO7s/T7T1Q== Date: Mon, 24 Nov 2025 10:49:44 +0100 From: Niklas Cassel To: Hans Zhang <18255117159@163.com> Cc: lpieralisi@kernel.org, kwilczynski@kernel.org, bhelgaas@google.com, helgaas@kernel.org, heiko@sntech.de, mani@kernel.org, yue.wang@amlogic.com, pali@kernel.org, neil.armstrong@linaro.org, robh@kernel.org, jingoohan1@gmail.com, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH v6 0/2] PCI: Configure Root Port MPS during host probing Message-ID: References: <20251104165125.174168-1-18255117159@163.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251104165125.174168-1-18255117159@163.com> On Wed, Nov 05, 2025 at 12:51:23AM +0800, Hans Zhang wrote: > Current PCIe initialization exhibits a key optimization gap: Root Ports > may operate with non-optimal Maximum Payload Size (MPS) settings. While > downstream device configuration is handled during bus enumeration, Root > Port MPS values inherited from firmware or hardware defaults often fail > to utilize the full capabilities supported by controller hardware. This > results in suboptimal data transfer efficiency throughout the PCIe > hierarchy. Hello PCI maintainers, Merge window is opening soon, what is the status of this series? Kind regards, Niklas