From patchwork Fri Jun 24 08:02:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 12894049 X-Patchwork-Delegate: kuba@kernel.org 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD2E9C433EF for ; Fri, 24 Jun 2022 08:02:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230242AbiFXICS (ORCPT ); Fri, 24 Jun 2022 04:02:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230217AbiFXICR (ORCPT ); Fri, 24 Jun 2022 04:02:17 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE9F96B8F0 for ; Fri, 24 Jun 2022 01:02:16 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1o4eGY-0007MN-GR; Fri, 24 Jun 2022 10:02:10 +0200 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1o4eGW-002Nzj-4h; Fri, 24 Jun 2022 10:02:09 +0200 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1o4eGW-00DBgC-Mm; Fri, 24 Jun 2022 10:02:08 +0200 From: Oleksij Rempel To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Oleksij Rempel , kernel@pengutronix.de, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Lukas Wunner Subject: [PATCH net-next v1 1/1] net: asix: add optional flow control support Date: Fri, 24 Jun 2022 10:02:07 +0200 Message-Id: <20220624080208.3143093-1-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add optional flow control support with respect to the link partners abilities. Signed-off-by: Oleksij Rempel --- drivers/net/usb/asix_common.c | 10 ++++++++++ drivers/net/usb/asix_devices.c | 2 ++ 2 files changed, 12 insertions(+) diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c index b4a1b7abcfc9..c9df7cd8daae 100644 --- a/drivers/net/usb/asix_common.c +++ b/drivers/net/usb/asix_common.c @@ -420,6 +420,8 @@ void asix_adjust_link(struct net_device *netdev) u16 mode = 0; if (phydev->link) { + bool tx_pause, rx_pause; + mode = AX88772_MEDIUM_DEFAULT; if (phydev->duplex == DUPLEX_HALF) @@ -427,6 +429,14 @@ void asix_adjust_link(struct net_device *netdev) if (phydev->speed != SPEED_100) mode &= ~AX_MEDIUM_PS; + + phy_get_pause(phydev, &tx_pause, &rx_pause); + + if (rx_pause) + mode |= AX_MEDIUM_RFC; + + if (tx_pause) + mode |= AX_MEDIUM_TFC; } asix_write_medium_mode(dev, mode, 0); diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c index 5b5eb630c4b7..1bb12bbc34bf 100644 --- a/drivers/net/usb/asix_devices.c +++ b/drivers/net/usb/asix_devices.c @@ -677,6 +677,8 @@ static int ax88772_init_phy(struct usbnet *dev) phy_suspend(priv->phydev); priv->phydev->mac_managed_pm = 1; + phy_support_asym_pause(priv->phydev); + phy_attached_info(priv->phydev); if (priv->embd_phy)