From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 E63F91F0E39; Thu, 12 Jun 2025 06:31:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749709884; cv=none; b=FeRWMokbhBexgJurWW00aH9iVKzRMvBxJWFIWCHjDOGOD5txB/DUtkyd0WUDvAbAg1JaBBv/gytmPAwXfkVYLj5QvqrmQMzxZQh2Tm1mbobOQvfTKedsgnoSYQXhmJingCsSqT3MFFvkT114XwbmW8fmuNQ84PDsLf1k20Kmkkw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749709884; c=relaxed/simple; bh=hwEQMmj5NpD7TYTUrpSQl8P8YX/4owSuhsy987Ydyf4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=T9Ny167rBOskNp52MRtaodGyWKZZOAmpjmy2kVUihujcVjmFxwHElbQJfV3yBV2C6/O6SqKHy94e/KEhgRbrBle3MCprtliOvZNqXoWB1K5YC/x3e9Rdzrzpcyp/Yw2UqqZgrkSLbJNzoVN8C+o1mc+4HsqO4iSAWjl82ylKzOw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=Oqo9AlTX; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Oqo9AlTX" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=/LIT+PyE2jX0PpxZeFpDNynbM6tFJlZCwyr6C5tUQIc=; b=Oqo9AlTXShU0/3RSbMuyuzzPD7 KJwmmT3Tvzw6DIHfQGPs3jw08HtW8+682FZon6Tk8DZ+q1nIMRUUC9k/VApO7Jy/jqu+zDTGhLDAP nb4sRP+AOzPh9nxiBgQdlGnvzQZuaFQSqCL0wX/f/8JmhyRh+jtDETmfm74u0E0Zcv6lOGEvu3Xak WytEOEbWKfHN3Zpm84cz3UD60ENFXYJtB7QzCT9bIB6SRdM6cfrXde+KafFei1vJCaq5OWwPaiFmr WcGi4aLPRTqttb5VsJq3/xr1UuOkjxy26MA8Yi1igTyCcs5Kk+EGyP1T2gPlCEq28fbLycjUkeu4c 61zJN8vA==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1uPbT5-0000000CK0N-2Anj; Thu, 12 Jun 2025 06:31:19 +0000 Date: Wed, 11 Jun 2025 23:31:19 -0700 From: Christoph Hellwig To: Graham Whyte Cc: Niklas Cassel , Christoph Hellwig , linux-pci@vger.kernel.org, shyamsaini@linux.microsoft.com, code@tyhicks.com, Okaya@kernel.org, bhelgaas@google.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 0/2] PCI: Reduce FLR delay to 10ms for MSFT devices Message-ID: References: <20250611000552.1989795-1-grwhyte@linux.microsoft.com> <1ccbaac5-7866-42f6-b324-cb9e851579e6@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-pci@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: <1ccbaac5-7866-42f6-b324-cb9e851579e6@linux.microsoft.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Wed, Jun 11, 2025 at 01:08:21PM -0700, Graham Whyte wrote: > We can ask our HW engineers to implement function readiness but we need > to be able to support exiting products, hence why posting it as a quirk. Your report sounds like it works perfectly fine, it's just that you want to reduce the delay. For that you'll need to stick to the standard methods instead of adding quirks, which are for buggy hardware that does not otherwise work.