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 05357205AB6; Mon, 16 Jun 2025 22:23:19 +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=1750112600; cv=none; b=rKNrrR2W20Tx4y5hFK8JzZY8FyFQuTyUQiYLKlKZ2AKJ0x3zyblEWaXGiHErbiCjPCi8aMXv9pOOxg4Rr8B5IcbqY5hQ6IkEjr/R5NuNg7VTMWsPg8iUSb8+OHOysYjEAQ+iAtEYCAgXA0wWwWOIq1jVIQcsJ5dDaioeFevjPVM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750112600; c=relaxed/simple; bh=5DcPMaS2QcixZD9QjmCLF62HkWJvZo207lXJbnyTsFw=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=H0kTRpJRlwfl+kYhdRVZuTo+vElk7YypRlGnia10dXN4DGVeGhrODUO/4VaIxjgZoYcahEyNIa9MifpM3QRhzKE7gKfEfhbmk339+TbqwAkx/N5VjibMV2JYQQ+L/S6KbPRWSkJOKmkAqiWBacQygeTGSRexsIw/Jf94FmLuRcg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KbOUHcOc; 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="KbOUHcOc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E4A74C4CEEA; Mon, 16 Jun 2025 22:23:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750112599; bh=5DcPMaS2QcixZD9QjmCLF62HkWJvZo207lXJbnyTsFw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=KbOUHcOcN669RMZ0PjqSZx+F61SgXJIdFdgvFCqfU8+z1Sh/lC+G2c8pbO6Q63sfq SzE7rwGiP4iB1tvHiUDntIXe+PmotGvOKRrKJM1broS4E8yjGz5n4l3fyacUNB/3XG Z6hC4+G/NxXmiW8wJxBgHg1ZOdf8oD8jOiws6c/xDiqxk0FZXnbCmRcdmZmW/nWYj+ 416TgB7ax+pqJt6l/JY0jMlOf7Ukyd94I7Kx0Bj31PYsa6yGtZ1PfsWk3dezv46b6J /XDdrjErMJqfDBU8nYVzaMZ3KfX0K647ToAf99+QnjtS580dMaqfS9IzNfjrmgtHx9 6Go3ibydDAYwg== Date: Mon, 16 Jun 2025 15:23:18 -0700 From: Jakub Kicinski To: longli@linuxonhyperv.com Cc: longli@microsoft.com, "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , "David S. Miller" , Eric Dumazet , Paolo Abeni , Shradha Gupta , Simon Horman , Konstantin Taranov , Souradeep Chakrabarti , Erick Archer , linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Subject: Re: [Patch net-next v2] net: mana: Record doorbell physical address in PF mode Message-ID: <20250616152318.26e1ea3e@kernel.org> In-Reply-To: <1749836765-28886-1-git-send-email-longli@linuxonhyperv.com> References: <1749836765-28886-1-git-send-email-longli@linuxonhyperv.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-Transfer-Encoding: 7bit On Fri, 13 Jun 2025 10:46:05 -0700 longli@linuxonhyperv.com wrote: > MANA supports RDMA in PF mode. The driver should record the doorbell > physical address when in PF mode. > > The doorbell physical address is used by the RDMA driver to map > doorbell pages of the device to user-mode applications through RDMA > verbs interface. In the past, they have been mapped to user-mode while > the device is in VF mode. With the support for PF mode implemented, > also expose those pages in PF mode. It'd be good to indicate if the PF mode support is implemented as in ready to be posted to the list, or implemented as in already in the tree? If it's in tree then please quote the commit. If upcoming please rephrase. This commit msg is much better, thank you, but to a person handling backports it will still not be immediately clear whether this is prep work for a new code path, or a bug fix. -- pw-bot: cr