From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C53BCC021B1 for ; Thu, 20 Feb 2025 13:13:25 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 6A06A82062; Thu, 20 Feb 2025 13:13:25 +0000 (UTC) X-Virus-Scanned: amavis at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavis, port 10024) with ESMTP id 2R4c136gjze8; Thu, 20 Feb 2025 13:13:24 +0000 (UTC) X-Comment: SPF check N/A for local connections - client-ip=140.211.166.142; helo=lists1.osuosl.org; envelope-from=intel-wired-lan-bounces@osuosl.org; receiver= DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org BB8B583834 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org; s=default; t=1740057204; bh=n1JeLIJD63fdITUzD5qYNGYN1nLbQdrPH3bWbtzVM78=; h=Date:From:To:Cc:References:In-Reply-To:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=9eBy4RAS4yyo86MRF0abpP3eGVQL1Ipi6ntYb6QpiWjBhHPGFsEAHLC5S08FEMzUQ ox3Sb0dNjfTFQi6PNk80IXFRUtjIvkJagmHdvoBlF+uwgvLtBZLaNupgRfGV6sN30H Ly40NsfXQ9G7jQ9A4KpCJdJ/SdEecWXSo/ogYgMLJE5eJjgYq0W4rT78iCKHdHfIUF VwWwaqd7FZviAqvusUfnlZW5olgsfvlGqU5ek3GLoVmxrIya1IM83Egt+JAu73X01s /SyMCXSJdtFlJGGgdhK1AxeY0wfBTxEwBEDl+P7Rc7yvrdeZ35j5IL8xTTi/cFEneR U/PF2lujrj5Lg== Received: from lists1.osuosl.org (lists1.osuosl.org [140.211.166.142]) by smtp1.osuosl.org (Postfix) with ESMTP id BB8B583834; Thu, 20 Feb 2025 13:13:24 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists1.osuosl.org (Postfix) with ESMTP id 07BC1D92 for ; Thu, 20 Feb 2025 13:13:23 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id EBB386084A for ; Thu, 20 Feb 2025 13:13:22 +0000 (UTC) X-Virus-Scanned: amavis at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavis, port 10024) with ESMTP id nSdEQ3BeIQoK for ; Thu, 20 Feb 2025 13:13:22 +0000 (UTC) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=horms@kernel.org; receiver= DMARC-Filter: OpenDMARC Filter v1.4.2 smtp3.osuosl.org 44E4E607DF DKIM-Filter: OpenDKIM Filter v2.11.0 smtp3.osuosl.org 44E4E607DF Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by smtp3.osuosl.org (Postfix) with ESMTPS id 44E4E607DF for ; Thu, 20 Feb 2025 13:13:21 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 9D6845C587C; Thu, 20 Feb 2025 13:12:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7ECEBC4CED1; Thu, 20 Feb 2025 13:13:19 +0000 (UTC) Date: Thu, 20 Feb 2025 13:13:17 +0000 From: Simon Horman To: Arkadiusz Kubalewski Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, Przemek Kitszel Message-ID: <20250220131317.GV1615191@kernel.org> References: <20250207180254.549314-1-arkadiusz.kubalewski@intel.com> <20250207180254.549314-2-arkadiusz.kubalewski@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250207180254.549314-2-arkadiusz.kubalewski@intel.com> X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740057200; bh=kfrR8B+O35qz/zXE38aAnrq3gSnLI1V0kGwQVK9LXOM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Y8bh0hag/oeJyibPwalbyILGMWc5capJvTuVsZagKuxBiFUdaXwMfK4fIgxw6ZVME /9FZhC+NxCeCaM4Fdq4p8ySw7V9sIuUL8i3SNrhp+4wrgqL3zPPk8Mb3iZVb7P3Fle 6YoBkb+waeif/e3UyVTaeRjAMnn/1kyrxvMNu5011f5B/Ua2o1antuoOo6kSWHre+C 5Py5DPktXrxE7ge4158MV1y0WAQl2b0LF/fopldp0rrNJj/6L5TSLO7VjA9iEZR7e1 12CoSz2bWUh2SGEvTEp+iznw0Wu9hLHcxB77qsmKr/TYsu3AL53savO4Bp9Nj9Dk51 79brcgJBiQuEw== X-Mailman-Original-Authentication-Results: smtp3.osuosl.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org X-Mailman-Original-Authentication-Results: smtp3.osuosl.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Y8bh0hag Subject: Re: [Intel-wired-lan] [PATCH iwl-next 1/3] ice: redesign dpll sma/u.fl pins control X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" On Fri, Feb 07, 2025 at 07:02:52PM +0100, Arkadiusz Kubalewski wrote: > DPLL-enabled E810 NIC driver provides user with list of input and output > pins. Hardware internal design impacts user control over SMA and U.FL > pins. Currently end-user view on those dpll pins doesn't provide any layer > of abstraction. On the hardware level SMA and U.FL pins are tied together > due to existence of direction control logic for each pair: > - SMA1 (bi-directional) and U.FL1 (only output) > - SMA2 (bi-directional) and U.FL2 (only input) > The user activity on each pin of the pair may impact the state of the > other. > > Previously all the pins were provided to the user as is, without the > control over SMA pins direction. > > Introduce a software controlled layer of abstraction over external board > pins, instead of providing the user with access to raw pins connected to > the dpll: > - new software controlled SMA and U.FL pins, > - callback operations directing user requests to corresponding hardware > pins according to the runtime configuration, > - ability to control SMA pins direction. > > Reviewed-by: Przemek Kitszel > Signed-off-by: Arkadiusz Kubalewski Reviewed-by: Simon Horman