From patchwork Wed Jul 13 14:07:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Russell King (Oracle)" X-Patchwork-Id: 12916797 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 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.lore.kernel.org (Postfix) with ESMTPS id 75D3EC43334 for ; Wed, 13 Jul 2022 14:09:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Date:Message-Id:MIME-Version:Subject:Cc :To:From:References:In-Reply-To:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=AH8vDplPpStXW+L+Sz72oxkMk0CVyOdfn1qi7o4qUrA=; b=Sv2Uk8Awm2aAFG znUZ2BznivyTzrxySfCM22auz3fH3gjKFbsV8wjwGiVOrq0iPPLqn7LN/BoMTDTRGJWUZSO+gdJ4/ vK9zHrs1NzNalVzDVqllYMP0mlp0/t1NsDDNUkoXLJB7bZXYLJwPbNjdHXF8NgWkpjcuIavDyFDRR 5w7eqfUU9wfluC0QHqMfBrdKTMab66SCbtHE8k+SBy1Wv33aQTMvS6W2eAfkrQMmNifWnK0eTv4FL FORhkpHIwAve77wVHXG6XS+/GSYTrMSjxHnqe8c9Wd82L0nJG9NzOT6J2k+ErXiHwpJkErrh1eCGi 8URTKtKCtDOEJ0QkH0CQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oBd2C-004FAK-GG; Wed, 13 Jul 2022 14:08:12 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oBd23-004F46-TE; Wed, 13 Jul 2022 14:08:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To: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=4m6eKBcv9AePiJQLePntZlsqdp7c+M1i0Vgb52feZuk=; b=QUyro8jWz4Ux3K36TmeYNKcEuy OiTdIIS/3b8qV7xgWNUZCdG3LJXEz0zw6kQ/8SsX66U3rx0Q8K1OHjNrAzv0XxGzrPSYBs+I2mgFE DKOxY5v5THSDEHHl0Ptyc9vmRXkOksGaVytuvaxXIyrsouhQyprzcIsLZjtGvpRtN5y3EOVCDgoFq 4DReSN7wTVx1TbFT+h6qLapOHH+WUeR0nNSCHQ2hZ6PWzoHN5rjqrrOLfzJo/S0dwL3Hfg4nvodGd 68AGif/1coyDpsCO0jdsPKDTz9tu/dsA/27QBjUFpf0GXD1xbUavHX79qLe8SsUnU5Dw2xqMwdj5h J4Wt3jSw==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:37050 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oBd1j-0004aW-51; Wed, 13 Jul 2022 15:07:43 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1oBd1i-006UCk-Eo; Wed, 13 Jul 2022 15:07:42 +0100 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn , Heiner Kallweit Cc: Alexandre Belloni , "Alvin __ipraga" , Andy Shevchenko , Claudiu Manoil , Daniel Scally , "David S. Miller" , DENG Qingfang , Eric Dumazet , Florian Fainelli , George McCollister , Greg Kroah-Hartman , Hauke Mehrtens , Heikki Krogerus , Jakub Kicinski , Kurt Kanzenbach , Landen Chao , Linus Walleij , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Matthias Brugger , netdev@vger.kernel.org, Paolo Abeni , "Rafael J. Wysocki" , Sakari Ailus , Sean Wang , UNGLinuxDriver@microchip.com, Vivien Didelot , Vladimir Oltean , Woojung Huh , Marek =?iso-8859-1?q?Beh=FAn?= Subject: [PATCH RFC net-next v2 1/6] net: phylink: split out and export interface to caps translation MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Wed, 13 Jul 2022 15:07:42 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220713_070803_969635_EC6F4988 X-CRM114-Status: GOOD ( 13.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org phylink_get_linkmodes() translates the interface mode into a set of speed and duplex capabilities which are masked with the MAC modes to then derive the link modes that are available. Split out the initial transformation into a new function phylink_interface_to_caps(), and export it, which will be useful when setting the maximum fixed link speed in DSA code. Signed-off-by: Russell King (Oracle) Reviewed-by: Marek Behún --- drivers/net/phy/phylink.c | 30 ++++++++++++++++++++++-------- include/linux/phylink.h | 1 + 2 files changed, 23 insertions(+), 8 deletions(-) diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 9bd69328dc4d..1d4a48d5a5ac 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -297,17 +297,12 @@ static void phylink_caps_to_linkmodes(unsigned long *linkmodes, } /** - * phylink_get_linkmodes() - get acceptable link modes - * @linkmodes: ethtool linkmode mask (must be already initialised) + * phylink_interface_to_caps() - translate an interface mode to phylink caps * @interface: phy interface mode defined by &typedef phy_interface_t - * @mac_capabilities: bitmask of MAC capabilities * - * Set all possible pause, speed and duplex linkmodes in @linkmodes that - * are supported by the @interface mode and @mac_capabilities. @linkmodes - * must have been initialised previously. + * Translate the @interface mode to a phylink MAC capabilities mask. */ -void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface, - unsigned long mac_capabilities) +unsigned long phylink_interface_to_caps(phy_interface_t interface) { unsigned long caps = MAC_SYM_PAUSE | MAC_ASYM_PAUSE; @@ -381,6 +376,25 @@ void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface, break; } + return caps; +} +EXPORT_SYMBOL_GPL(phylink_interface_to_caps); + +/** + * phylink_get_linkmodes() - get acceptable link modes + * @linkmodes: ethtool linkmode mask (must be already initialised) + * @interface: phy interface mode defined by &typedef phy_interface_t + * @mac_capabilities: bitmask of MAC capabilities + * + * Set all possible pause, speed and duplex linkmodes in @linkmodes that + * are supported by the @interface mode and @mac_capabilities. @linkmodes + * must have been initialised previously. + */ +void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface, + unsigned long mac_capabilities) +{ + unsigned long caps = phylink_interface_to_caps(interface); + phylink_caps_to_linkmodes(linkmodes, caps & mac_capabilities); } EXPORT_SYMBOL_GPL(phylink_get_linkmodes); diff --git a/include/linux/phylink.h b/include/linux/phylink.h index 6d06896fc20d..692be109a9fa 100644 --- a/include/linux/phylink.h +++ b/include/linux/phylink.h @@ -518,6 +518,7 @@ void pcs_link_up(struct phylink_pcs *pcs, unsigned int mode, phy_interface_t interface, int speed, int duplex); #endif +unsigned long phylink_interface_to_caps(phy_interface_t interface); void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface, unsigned long mac_capabilities); void phylink_generic_validate(struct phylink_config *config,