Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932535AbdLTISV (ORCPT ); Wed, 20 Dec 2017 03:18:21 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:49204 "EHLO huawei.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1754534AbdLTINc (ORCPT ); Wed, 20 Dec 2017 03:13:32 -0500 From: Lipeng To: CC: , , , , Subject: [PATCH V3 net-next 13/17] net: hns3: add support to update flow control settings after autoneg Date: Wed, 20 Dec 2017 16:43:15 +0800 Message-ID: <1513759399-40915-14-git-send-email-lipeng321@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1513759399-40915-1-git-send-email-lipeng321@huawei.com> References: <1513759399-40915-1-git-send-email-lipeng321@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.71.200.31] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3202 Lines: 87 When auto-negotiation is enabled, the MAC flow control settings is based on the flow control negotiation result. And it should be configured after a valid link has been established. This patch adds support to update flow control settings after auto-negotiation has completed. Signed-off-by: Fuyun Liang Signed-off-by: Lipeng --- .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 36 ++++++++++++++++++++++ .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 1 + .../ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c | 4 +++ 3 files changed, 41 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 0f55ee6..bb31212 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -4707,6 +4707,42 @@ static int hclge_cfg_pauseparam(struct hclge_dev *hdev, u32 rx_en, u32 tx_en) return 0; } +int hclge_cfg_flowctrl(struct hclge_dev *hdev) +{ + struct phy_device *phydev = hdev->hw.mac.phydev; + u16 remote_advertising = 0; + u16 local_advertising = 0; + u32 rx_pause, tx_pause; + u8 flowctl; + + if (!phydev->link || !phydev->autoneg) + return 0; + + if (phydev->advertising & ADVERTISED_Pause) + local_advertising = ADVERTISE_PAUSE_CAP; + + if (phydev->advertising & ADVERTISED_Asym_Pause) + local_advertising |= ADVERTISE_PAUSE_ASYM; + + if (phydev->pause) + remote_advertising = LPA_PAUSE_CAP; + + if (phydev->asym_pause) + remote_advertising |= LPA_PAUSE_ASYM; + + flowctl = mii_resolve_flowctrl_fdx(local_advertising, + remote_advertising); + tx_pause = flowctl & FLOW_CTRL_TX; + rx_pause = flowctl & FLOW_CTRL_RX; + + if (phydev->duplex == HCLGE_MAC_HALF) { + tx_pause = 0; + rx_pause = 0; + } + + return hclge_cfg_pauseparam(hdev, rx_pause, tx_pause); +} + static void hclge_get_pauseparam(struct hnae3_handle *handle, u32 *auto_neg, u32 *rx_en, u32 *tx_en) { diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h index cda520c..28cc063 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h @@ -602,4 +602,5 @@ int hclge_set_vf_vlan_common(struct hclge_dev *vport, int vfid, void hclge_mbx_handler(struct hclge_dev *hdev); void hclge_reset_tqp(struct hnae3_handle *handle, u16 queue_id); +int hclge_cfg_flowctrl(struct hclge_dev *hdev); #endif diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c index 7069e94..3745153 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c @@ -183,6 +183,10 @@ static void hclge_mac_adjust_link(struct net_device *netdev) ret = hclge_cfg_mac_speed_dup(hdev, speed, duplex); if (ret) netdev_err(netdev, "failed to adjust link.\n"); + + ret = hclge_cfg_flowctrl(hdev); + if (ret) + netdev_err(netdev, "failed to configure flow control.\n"); } int hclge_mac_start_phy(struct hclge_dev *hdev) -- 1.9.1