From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 8D2762DF134; Sun, 23 Aug 2026 23:57:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787529425; cv=none; b=J1uO7nR7g53E3OQiHp9enkEyPG6SAdnA8n5mjuSbbA9CUVjFRif82gbqu/X/IQETftZYhGHyNqYbEZaCZZUklEQSTJ2qjgxp00eg7quoNNh7E7SkQZU0eCpzQ8XQtxyOGeoRHKktjdegdSJiUbAAs1ennZS2SyF4v8n9Ux1xFfU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787529425; c=relaxed/simple; bh=/vh9aRIyNRbedagQxMg+fPJvHafgqO2F6w0WizsCJvI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=eVv586JS5ZJbdjUohbSByYJ0jWveVdW+t2I/LBZYd01YrAnl7v4tRgwb10Ve7djGelnnfkrte+crlmmpPOdgiKhUgUUvWRfefnFgjynu/K1JcCbBRfpF7AmZ+SSlD7QYuP/jFGR3RGMFvNQy2/3tWS1bWYa5uWYKiHeewxZdCBs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dj1qSClo; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dj1qSClo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E77951F000E9; Sun, 23 Aug 2026 23:57:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787529424; bh=O5SbCNfnMjv5k8msoooVD6oD2TypF+9sEXy8sPhvT/8=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=dj1qSClo5YJmULq7MzR34ONqyxy1qARhbJGsekZcl/Z94GELAFrHCOC5bqzupyUFj K2qYTql5H9Xpt6f8BVtNQYT3XAK2zKr5giovsIUGEZXX7P9COwceyK7HaU6M73i4s7 3XI55v5W0gvvMuMrlJkz0DMJQQX82IlAllPMkZ6gGMbZ0LMGqBDlKG0mvOV1gDh4Cr ZhK4zdJm9RoCXYyvTOQi5Iw9QjTR2/BfF7LSK7W8X/eO8aT2a89fPx9afC+IvhCHOk iADdNG6z7TjDvxIOAK0L0KVnuWnEL73/+WI6Wt7VaonYqP8ndaJEHC//9njxRN40gW iw3T7WQPyeakg== Date: Sun, 23 Aug 2026 16:57:02 -0700 From: Wei Liu To: Long Li Cc: "wei.liu@kernel.org" , Linux on Hyper-V List , "linux-pci@vger.kernel.org" , KY Srinivasan , Haiyang Zhang , Dexuan Cui , Jonathan Corbet , Shuah Khan , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , "open list:DOCUMENTATION" , open list Subject: Re: [EXTERNAL] [PATCH RFC 2/2] PCI: hv: Add vPCI device reset support Message-ID: <20260823235702.GA3566091@liuwe-devbox-debian-v2.local> References: <20260724230844.3259741-1-wei.liu@kernel.org> <20260724230844.3259741-3-wei.liu@kernel.org> 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=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Thu, Aug 13, 2026 at 09:40:48PM +0000, Long Li wrote: > > > > -----Original Message----- > > From: wei.liu@kernel.org > > Sent: Friday, July 24, 2026 4:09 PM > > To: Linux on Hyper-V List ; linux- > > pci@vger.kernel.org > > Cc: Wei Liu ; KY Srinivasan ; > > Haiyang Zhang ; Dexuan Cui > > ; Long Li ; Jonathan Corbet > > ; Shuah Khan ; Lorenzo > > Pieralisi ; Krzysztof Wilczyński > > ; Manivannan Sadhasivam ; Rob > > Herring ; Bjorn Helgaas ; open > > list:DOCUMENTATION ; open list > kernel@vger.kernel.org> > > Subject: [EXTERNAL] [PATCH RFC 2/2] PCI: hv: Add vPCI device reset support > > > > From: Wei Liu > > > > Hyper-V vPCI protocol version 1.5 adds a RESET_DEVICE request for projected > > PCI functions. Negotiate the new protocol version and issue the request > > through the vPCI VMBus channel from the PCI controller reset callback. > > > > Use the existing VMBus response path. Return -ENOTTY when the host > > reports STATUS_NOT_SUPPORTED so PCI core may try another reset method. > > > > Signed-off-by: Wei Liu > > Reviewed-by: Long Li Thanks for the review! I still need to find some copious free time to test the new hook suggested in patch one. I don't think changes in patch 1 will result in major changes in this patch, so I intend to retain this tag when I post next time. Thanks, Wei