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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 Content-Transfer-Encoding: 8bit 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: linux-kernel@vger.kernel.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.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) -- 2.30.2