From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 BB3851EA7B for ; Thu, 10 Aug 2023 10:39:49 +0000 (UTC) Received: from pandora.armlinux.org.uk (unknown [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23D04268D; Thu, 10 Aug 2023 03:39:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=fcdKfiSbV9Bw4yfr4yNiYOjw2xqNqL4+khp/9M2GE58=; b=X4ZuWlhKv4RIilso4lrR1RFv+/ tiQXDOAwGKIX1mlS18D5PkgWMOwXCzxm9W+hehSKPsLpG0TI5uRfvOBUCidvAN1KcMQ6dZLugd7Z8 QNrW5F4/TxG+NkmyNNIpCMYtyMCEOUTvD5WLkCQK/l4BZpHaYm2DS1AY673XWv0UE6z8vmIaBOSdD 85EkTT/udQ0ZhlX/RZFScIzwf9duK0KuyPuixHJThH5FWtlLmeH3sLi1VpVS75j27iDXp/CYSlGwC F1H+ydP1GSBYbMb4Sz9O0vc95yV/bMZfnE/IsXuc6RPuBIu7q6yxzubrSOosbiGMEPfiWZmsCb9O1 o/mbJbCQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:35390) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1qU34t-0003ph-1T; Thu, 10 Aug 2023 11:39:39 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1qU34s-0001iY-ID; Thu, 10 Aug 2023 11:39:38 +0100 Date: Thu, 10 Aug 2023 11:39:38 +0100 From: "Russell King (Oracle)" To: Josua Mayer Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Andrew Lunn , Heiner Kallweit , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Subject: Re: [PATCH] net: sfp: handle 100G/25G active optical cables in sfp_parse_support Message-ID: References: <20230810094817.29262-1-josua@solid-run.com> Precedence: bulk X-Mailing-List: netdev@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: <20230810094817.29262-1-josua@solid-run.com> Sender: Russell King (Oracle) X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED,RDNS_NONE, SPF_HELO_NONE,SPF_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net On Thu, Aug 10, 2023 at 11:48:17AM +0200, Josua Mayer wrote: > Handle extended compliance code 0x1 (SFF8024_ECC_100G_25GAUI_C2M_AOC) > for active optical cables supporting 25G and 100G speeds. > > Since the specification makes no statement about transmitter range, and > as the specific sfp module that had been tested features only 2m fiber - > short-range (SR) modes are selected. > > sfp_parse_support already handles SFF8024_ECC_100GBASE_SR4_25GBASE_SR > with compatible properties: 100000baseSR4; 25000baseSR; protocol 25gbase-r. > Add SFF8024_ECC_100G_25GAUI_C2M_AOC to the same case. > > Tested with fs.com S28-AO02 AOC SFP28 module. > > Signed-off-by: Josua Mayer Thanks. I think I would like one extra change: > + case SFF8024_ECC_100G_25GAUI_C2M_AOC: > case SFF8024_ECC_100GBASE_SR4_25GBASE_SR: > phylink_set(modes, 100000baseSR4_Full); Since SFPs are single lane, SR4 doesn't make sense (which requires four lanes), and I shouldn't have added it when adding these modes. It would be a good idea to drop that, or at least for the addition of the SFF8024_ECC_100G_25GAUI_C2M_AOC case. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!