From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793914486; b=N0cQJFx1h1AM8FoHbvOrMQ1/CwI7BjbtN7VPJdjZI2Pog0D1qqLNOSWuLKItVHsu33EJ ZF36eAeSXL3KNOfWUeuO8Q9CLrl9D/ed2pGacxiQ/K7B41jvJ4srnqSZZ42K0AgUjVSYM DlIzMwXkYNZQCcxggE77Ivn0GLsVRxd8xuatqBJI0zH63HDsI5sd1AublkkLLL2BHP9rs Y/LGM+7WkwAO0SPPg0b3RaAXUHgT9mGqJNXc6n2UGnDMaFpBfQ6a53lmoBR6J0h1UehBa lDkDffz92MpUXD6rcmXFQk5XLRGoJXTwFMUFbFDriJfLog5mZ7WHlviQ8ZMxxr1ffhQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793914486; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=xfM3oTZbA9GZfIiLkeTZfWkJk5oDQ4tBo9T8XwJOZPU=; b=AEJqMKAX584+/hVwmtj9rgWALO+xTZFE/IwAN+RiY4+BckBCibfDXS4WJMraxpMpupW2 PdYDTVqOm6d3B3A6Mp/Cr31QZq55AKRWh+ENX5Tw3QeS9szX5DdUa60fLhrTiIhLIpDIa qGHrVckNNPnMVkl8bu46d/tRTFn3nqmgsSLXX45aLet+dMK4BPnLILspdAkMEQhN0X3Qq 3MyevnqopZBXKFKmap0YtBfJJf8dB/FzRTqY9pr6BfksrY1CPADR0CAQzuInDctqL/6so +YgvEXNuRfFlurTKIrze9BfcawvLHvDHoTIWv3hW5IUvfFO2pCFSJG5s0ZzliPNgoGg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b="EL3/zERs"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 230C8606D807; Thu, 5 Nov 2026 21:34:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=EL3/zERs Received: by smtp.kernel.org (Postfix) with ESMTPSA id 896461F008A3; Thu, 5 Nov 2026 21:34:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793914486; bh=xfM3oTZbA9GZfIiLkeTZfWkJk5oDQ4tBo9T8XwJOZPU=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=EL3/zERsH+cbk7IV/pDuFDuqpTebsPKLJGaF5sFwfHJ2pqeVL98PBgNHgWNyA84u/ ECLQx00rP21PC3k2HGylRrt7lO0S6DluhRxAS+z9wYF0qMl4mGLKyAf/WMRv7VcLUS n9RUd/Qv92d924lZUTbrtjeRSw1vlasbgnYveeTzeDEFcFyEJhg+X+m96p9sFJYq77 y5Tbn7sPUBKGk2eB1KMVHCZ9phZtsQwN9V9xOLTNRM7a3ApQyE4G+6jQcBgQcJkB4n T/5LUXvkwtzW0808JaKfNJ/uukppKrBy+VksxTsQCYbyOFSTIpsg+FkPpoUgoxMRTV oCAYZbG9eqZ4w== Date: Thu, 5 Nov 2026 14:34:44 -0700 From: Keith Busch To: Bjorn Helgaas Cc: Keith Busch , tglx@kernel.org, bhelgaas@google.com, maz@kernel.org, lrizzo@google.com, hch@lst.de, changfengnan@bytedance.com, namjain@linux.microsoft.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-nvme@lists.infradead.org Subject: Re: [PATCH 2/2] PCI/MSI: Implement irq_mask_noflush() for MSI-x Message-ID: References: <20261105182706.3700908-3-kbusch@meta.com> <20261105194116.GA1553387@bhelgaas> 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=us-ascii Content-Disposition: inline In-Reply-To: <20261105194116.GA1553387@bhelgaas> On Thu, Nov 05, 2026 at 01:41:16PM -0600, Bjorn Helgaas wrote: > On Thu, Nov 05, 2026 at 10:27:06AM -0800, Keith Busch wrote: > > From: Keith Busch > > > > Skip the read-back that flushes the MSI-x mask write. Parent domains > > that mask on behalf of PCI/MSI keep using their own irq_mask(). > > When you respin it, > > s/MSI-x/MSI-X/ to match spec usage Oh, sorry, the messages crosses on the wire so the v2 retains the MSI-x syntax. I can respin it, but don't want to rapid fire another version.