From patchwork Mon Nov 26 09:33:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Russkikh X-Patchwork-Id: 1003072 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=aquantia.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=AQUANTIA1COM.onmicrosoft.com header.i=@AQUANTIA1COM.onmicrosoft.com header.b="i7xfLwgX"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 433MD01B8Nz9s3q for ; Mon, 26 Nov 2018 20:33:20 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726394AbeKZU0t (ORCPT ); Mon, 26 Nov 2018 15:26:49 -0500 Received: from mail-eopbgr710041.outbound.protection.outlook.com ([40.107.71.41]:44880 "EHLO NAM05-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726225AbeKZU0q (ORCPT ); Mon, 26 Nov 2018 15:26:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=AQUANTIA1COM.onmicrosoft.com; s=selector1-aquantia-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=WPRfsTC73J7eTSun+8wUM8zLrTRP3v6ZHqxooBEpyV4=; b=i7xfLwgXS3U0m95xr7FRKqSwbtZJK4XEWwEwsz7q/LvyGmAXJQ7/U5V97ynpB+TVxZFUArr/alQomyfnqeT1tPrdeLlE4vmK+TSlSureQcftj7AZM1n6FdgErEVWfGCmFIPR0pBKuaYrcpoTHIIodt0r1W0TmjL5ps2WE3X9Gf0= Received: from BY1PR0701MB1660.namprd07.prod.outlook.com (10.162.110.22) by BY1PR0701MB1894.namprd07.prod.outlook.com (10.162.143.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1361.18; Mon, 26 Nov 2018 09:33:12 +0000 Received: from BY1PR0701MB1660.namprd07.prod.outlook.com ([fe80::f8ee:2260:e410:fffd]) by BY1PR0701MB1660.namprd07.prod.outlook.com ([fe80::f8ee:2260:e410:fffd%3]) with mapi id 15.20.1361.019; Mon, 26 Nov 2018 09:33:12 +0000 From: Igor Russkikh To: "linux-usb@vger.kernel.org" , "davem@davemloft.net" , "netdev@vger.kernel.org" CC: "andrew@lunn.ch" , Dmitry Bezrukov , Igor Russkikh Subject: [PATCH v4 net-next 06/21] net: usb: aqc111: Introduce link management Thread-Topic: [PATCH v4 net-next 06/21] net: usb: aqc111: Introduce link management Thread-Index: AQHUhWsMncWmdS+vRU27Z+LznVnN+g== Date: Mon, 26 Nov 2018 09:33:12 +0000 Message-ID: <10f3091f08b3b518de3e37eb4cb86f6a3089d472.1543224254.git.igor.russkikh@aquantia.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: AM6PR03CA0024.eurprd03.prod.outlook.com (2603:10a6:20b::37) To BY1PR0701MB1660.namprd07.prod.outlook.com (2a01:111:e400:522a::22) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Igor.Russkikh@aquantia.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [95.79.108.179] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; BY1PR0701MB1894; 6:OFiO1PEhpxJF+KDCsH/j2K/OQbHVC1poZdm1IbPDAIgEjkEp3wrkIvAq2IRs1+Rpju+JFQc3b7vYKmUJzZu3BlHXmU6QBZ7QTFg3uEzlMb4ONsXowhs4JJmk6rXdu1d4zRHlBvbUSV7IwlXc0WKU3GjUfwZVVnmzkBZRnXf2i1+KoZu76Qq1e+w7PpNNfKduDRZytE5uqdHHczXf1fE6NreRKW4xSeUKNSkE5pjlRetLEAoKtHyrDIpST03uoHCW8oc6VZOpQnXFmyBsf2ZCDsTJy4TSmb+rP0WfP51Hrb2Q2KUVoZvOjjGGqZ0rONJbsCrNqN+caPWMFMFkHBTK/R9mrE4AZyJ/PUosMa9U/0eGat4L9KFXlHuxVOZGmEIvV6hsZfzVcjuzLVNeuEH8qxqbKCQ4lTLwfIzBdY/APJskUCPid3KjbTLtIJkhc+qaoOg0Uvm+gmHeeyiniT4FsA==; 5:0f0lEhcCq2FQItLgQnixotPUSxPVDiMhN/uC4chuSpCps+T+eFJRL5Eys5LnpX2o77AsX62I6biUqruHgLyXjiMXjprGGdn1983v3ORcIUpGu/tZj2pCs65o9eVUlpozn/53tanf1flpdUEi43FZaR/t75FaidbAvERTo5qWgtA=; 7:Jkiw3NCTi/vW08LDKBtOF8gZVdAJ7UfG7XViscOkUfXP98kYOYnuQ1AQcw1TcAyc4xrjCy+rco7LY9KXvtNOZyEqRhIoy03KHj4fNuLRbXGS/XU9HwccnEmfFO3aROfSngAs6sttR9fWsjJTfqdC+Q== x-ms-office365-filtering-correlation-id: cd885c99-ca19-4535-6379-08d653822ed4 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390098)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600074)(711020)(2017052603328)(7153060)(7193020); SRVR:BY1PR0701MB1894; x-ms-traffictypediagnostic: BY1PR0701MB1894: x-microsoft-antispam-prvs: x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(6040522)(2401047)(8121501046)(5005006)(3002001)(3231443)(944501410)(52105112)(10201501046)(93006095)(93001095)(148016)(149066)(150057)(6041310)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(20161123560045)(20161123558120)(201708071742011)(7699051)(76991095); SRVR:BY1PR0701MB1894; BCL:0; PCL:0; RULEID:; SRVR:BY1PR0701MB1894; x-forefront-prvs: 086831DFB4 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(39840400004)(376002)(396003)(136003)(366004)(346002)(199004)(189003)(14454004)(102836004)(97736004)(71200400001)(71190400001)(54906003)(6436002)(72206003)(105586002)(110136005)(11346002)(446003)(186003)(486006)(25786009)(2906002)(7736002)(575784001)(86362001)(5660300001)(316002)(305945005)(2201001)(2501003)(53936002)(99286004)(36756003)(52116002)(6506007)(6116002)(76176011)(386003)(4326008)(3846002)(68736007)(6512007)(107886003)(476003)(81166006)(478600001)(118296001)(26005)(106356001)(8676002)(256004)(81156014)(14444005)(2616005)(6486002)(66066001)(44832011)(8936002); DIR:OUT; SFP:1101; SCL:1; SRVR:BY1PR0701MB1894; H:BY1PR0701MB1660.namprd07.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: aquantia.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: iRTVHeqiSAeHtGRwYcW/VH4ULfCUIA4UK9oqha0osqB79gsNrQVZaAvod/pje1iv1Fmz34Efq/jZrhm2mkhlPygQX99ig5hruchpK6gzjZD8BwfWjwSm7hxOOTeuSl9rnuaNklCgQ3YJYafS1+r7Sdy16wUVcAz5+GXa+RJ+UleAiBpa5Hihq0+Ykbhjt6L2p7EcitT2lCe/fg4j2Sby2ac0MdJEbHfIEmPmafBqR7ipto9fYS811djdaZPFB/QzgGANNiq9tnV1vJE6/uO557WNaCD66Hza1f7zQJeElMYzkZXhvC/J4LRJp7DySTQmyNi9LpXvD4FfeiGb3arJ19QYfruNb6c+Foa/o4p0y40= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: aquantia.com X-MS-Exchange-CrossTenant-Network-Message-Id: cd885c99-ca19-4535-6379-08d653822ed4 X-MS-Exchange-CrossTenant-originalarrivaltime: 26 Nov 2018 09:33:12.0404 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 83e2e134-991c-4ede-8ced-34d47e38e6b1 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY1PR0701MB1894 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Dmitry Bezrukov Add full hardware initialization sequence and link configuration logic Signed-off-by: Dmitry Bezrukov Signed-off-by: Igor Russkikh --- drivers/net/usb/aqc111.c | 235 +++++++++++++++++++++++++++++++++++++++ drivers/net/usb/aqc111.h | 13 +++ 2 files changed, 248 insertions(+) diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c index e277209df616..e33be16b506c 100644 --- a/drivers/net/usb/aqc111.c +++ b/drivers/net/usb/aqc111.c @@ -157,6 +157,53 @@ static int aqc111_write32_cmd(struct usbnet *dev, u8 cmd, u16 value, return aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), &tmp); } +static void aqc111_set_phy_speed(struct usbnet *dev, u8 autoneg, u16 speed) +{ + struct aqc111_data *aqc111_data = dev->driver_priv; + + aqc111_data->phy_cfg &= ~AQ_ADV_MASK; + aqc111_data->phy_cfg |= AQ_PAUSE; + aqc111_data->phy_cfg |= AQ_ASYM_PAUSE; + aqc111_data->phy_cfg |= AQ_DOWNSHIFT; + aqc111_data->phy_cfg &= ~AQ_DSH_RETRIES_MASK; + aqc111_data->phy_cfg |= (3 << AQ_DSH_RETRIES_SHIFT) & + AQ_DSH_RETRIES_MASK; + + if (autoneg == AUTONEG_ENABLE) { + switch (speed) { + case SPEED_5000: + aqc111_data->phy_cfg |= AQ_ADV_5G; + /* fall-through */ + case SPEED_2500: + aqc111_data->phy_cfg |= AQ_ADV_2G5; + /* fall-through */ + case SPEED_1000: + aqc111_data->phy_cfg |= AQ_ADV_1G; + /* fall-through */ + case SPEED_100: + aqc111_data->phy_cfg |= AQ_ADV_100M; + /* fall-through */ + } + } else { + switch (speed) { + case SPEED_5000: + aqc111_data->phy_cfg |= AQ_ADV_5G; + break; + case SPEED_2500: + aqc111_data->phy_cfg |= AQ_ADV_2G5; + break; + case SPEED_1000: + aqc111_data->phy_cfg |= AQ_ADV_1G; + break; + case SPEED_100: + aqc111_data->phy_cfg |= AQ_ADV_100M; + break; + } + } + + aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, &aqc111_data->phy_cfg); +} + static const struct net_device_ops aqc111_netdev_ops = { .ndo_open = usbnet_open, .ndo_stop = usbnet_stop, @@ -179,6 +226,7 @@ static void aqc111_read_fw_version(struct usbnet *dev, static int aqc111_bind(struct usbnet *dev, struct usb_interface *intf) { struct usb_device *udev = interface_to_usbdev(intf); + enum usb_device_speed usb_speed = udev->speed; struct aqc111_data *aqc111_data; int ret; @@ -206,6 +254,9 @@ static int aqc111_bind(struct usbnet *dev, struct usb_interface *intf) dev->net->netdev_ops = &aqc111_netdev_ops; aqc111_read_fw_version(dev, aqc111_data); + aqc111_data->autoneg = AUTONEG_ENABLE; + aqc111_data->advertised_speed = (usb_speed == USB_SPEED_SUPER) ? + SPEED_5000 : SPEED_1000; return 0; } @@ -224,6 +275,7 @@ static void aqc111_unbind(struct usbnet *dev, struct usb_interface *intf) 2, ®16); /* Power down ethernet PHY */ + aqc111_data->phy_cfg &= ~AQ_ADV_MASK; aqc111_data->phy_cfg |= AQ_LOW_POWER; aqc111_data->phy_cfg &= ~AQ_PHY_POWER_EN; aqc111_write32_cmd_nopm(dev, AQ_PHY_OPS, 0, 0, @@ -232,6 +284,179 @@ static void aqc111_unbind(struct usbnet *dev, struct usb_interface *intf) kfree(aqc111_data); } +static void aqc111_status(struct usbnet *dev, struct urb *urb) +{ + struct aqc111_data *aqc111_data = dev->driver_priv; + u64 *event_data = NULL; + int link = 0; + + if (urb->actual_length < sizeof(*event_data)) + return; + + event_data = urb->transfer_buffer; + le64_to_cpus(event_data); + + if (*event_data & AQ_LS_MASK) + link = 1; + else + link = 0; + + aqc111_data->link_speed = (*event_data & AQ_SPEED_MASK) >> + AQ_SPEED_SHIFT; + aqc111_data->link = link; + + if (netif_carrier_ok(dev->net) != link) + usbnet_defer_kevent(dev, EVENT_LINK_RESET); +} + +static void aqc111_configure_rx(struct usbnet *dev, + struct aqc111_data *aqc111_data) +{ + enum usb_device_speed usb_speed = dev->udev->speed; + u16 link_speed = 0, usb_host = 0; + u8 buf[5] = { 0 }; + u8 queue_num = 0; + u16 reg16 = 0; + u8 reg8 = 0; + + buf[0] = 0x00; + buf[1] = 0xF8; + buf[2] = 0x07; + switch (aqc111_data->link_speed) { + case AQ_INT_SPEED_5G: + link_speed = 5000; + reg8 = 0x05; + reg16 = 0x001F; + break; + case AQ_INT_SPEED_2_5G: + link_speed = 2500; + reg16 = 0x003F; + break; + case AQ_INT_SPEED_1G: + link_speed = 1000; + reg16 = 0x009F; + break; + case AQ_INT_SPEED_100M: + link_speed = 100; + queue_num = 1; + reg16 = 0x063F; + buf[1] = 0xFB; + buf[2] = 0x4; + break; + } + + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_INTER_PACKET_GAP_0, + 1, 1, ®8); + + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TX_PAUSE_RESEND_T, 3, 3, buf); + + switch (usb_speed) { + case USB_SPEED_SUPER: + usb_host = 3; + break; + case USB_SPEED_HIGH: + usb_host = 2; + break; + case USB_SPEED_FULL: + case USB_SPEED_LOW: + usb_host = 1; + queue_num = 0; + break; + default: + usb_host = 0; + break; + } + + memcpy(buf, &AQC111_BULKIN_SIZE[queue_num], 5); + /* RX bulk configuration */ + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL, 5, 5, buf); + + /* Set high low water level */ + reg16 = 0x0810; + + aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW, + 2, ®16); + netdev_info(dev->net, "Link Speed %d, USB %d", link_speed, usb_host); +} + +static int aqc111_link_reset(struct usbnet *dev) +{ + struct aqc111_data *aqc111_data = dev->driver_priv; + u16 reg16 = 0; + u8 reg8 = 0; + + if (aqc111_data->link == 1) { /* Link up */ + aqc111_configure_rx(dev, aqc111_data); + + /* Vlan Tag Filter */ + reg8 = SFR_VLAN_CONTROL_VSO; + + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, + 1, 1, ®8); + + reg8 = 0x0; + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, + 1, 1, ®8); + + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMTX_DMA_CONTROL, + 1, 1, ®8); + + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ARC_CTRL, 1, 1, ®8); + + reg16 = SFR_RX_CTL_IPE | SFR_RX_CTL_AB; + aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); + + reg8 = SFR_RX_PATH_READY; + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH, + 1, 1, ®8); + + reg8 = SFR_BULK_OUT_EFF_EN; + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL, + 1, 1, ®8); + + reg16 = 0; + aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, + 2, ®16); + + reg16 = SFR_MEDIUM_XGMIIMODE | SFR_MEDIUM_FULL_DUPLEX; + aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, + 2, ®16); + + aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, + 2, ®16); + + reg16 |= SFR_MEDIUM_RECEIVE_EN | SFR_MEDIUM_RXFLOW_CTRLEN | + SFR_MEDIUM_TXFLOW_CTRLEN; + aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, + 2, ®16); + + reg16 = SFR_RX_CTL_IPE | SFR_RX_CTL_AB | SFR_RX_CTL_START; + aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); + + netif_carrier_on(dev->net); + } else { + aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, + 2, ®16); + reg16 &= ~SFR_MEDIUM_RECEIVE_EN; + aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, + 2, ®16); + + aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); + reg16 &= ~SFR_RX_CTL_START; + aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16); + + reg8 = SFR_BULK_OUT_FLUSH_EN | SFR_BULK_OUT_EFF_EN; + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL, + 1, 1, ®8); + reg8 = SFR_BULK_OUT_EFF_EN; + aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL, + 1, 1, ®8); + + netif_carrier_off(dev->net); + } + return 0; +} + static int aqc111_reset(struct usbnet *dev) { struct aqc111_data *aqc111_data = dev->driver_priv; @@ -254,6 +479,12 @@ static int aqc111_reset(struct usbnet *dev) SFR_MONITOR_MODE_RW_FLAG); aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_MONITOR_MODE, 1, 1, ®8); + netif_carrier_off(dev->net); + + /* Phy advertise */ + aqc111_set_phy_speed(dev, aqc111_data->autoneg, + aqc111_data->advertised_speed); + return 0; } @@ -275,6 +506,8 @@ static int aqc111_stop(struct usbnet *dev) aqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, &aqc111_data->phy_cfg); + netif_carrier_off(dev->net); + return 0; } @@ -282,6 +515,8 @@ static const struct driver_info aqc111_info = { .description = "Aquantia AQtion USB to 5GbE Controller", .bind = aqc111_bind, .unbind = aqc111_unbind, + .status = aqc111_status, + .link_reset = aqc111_link_reset, .reset = aqc111_reset, .stop = aqc111_stop, }; diff --git a/drivers/net/usb/aqc111.h b/drivers/net/usb/aqc111.h index a93d34af76b9..f3b45d8ca4e3 100644 --- a/drivers/net/usb/aqc111.h +++ b/drivers/net/usb/aqc111.h @@ -113,6 +113,7 @@ #define AQ_ADV_1G BIT(1) #define AQ_ADV_2G5 BIT(2) #define AQ_ADV_5G BIT(3) +#define AQ_ADV_MASK 0x0F #define AQ_PAUSE BIT(16) #define AQ_ASYM_PAUSE BIT(17) @@ -127,6 +128,10 @@ /******************************************************************************/ struct aqc111_data { + u8 link_speed; + u8 link; + u8 autoneg; + u32 advertised_speed; struct { u8 major; u8 minor; @@ -135,6 +140,14 @@ struct aqc111_data { u32 phy_cfg; }; +#define AQ_LS_MASK 0x8000 +#define AQ_SPEED_MASK 0x7F00 +#define AQ_SPEED_SHIFT 0x0008 +#define AQ_INT_SPEED_5G 0x000F +#define AQ_INT_SPEED_2_5G 0x0010 +#define AQ_INT_SPEED_1G 0x0011 +#define AQ_INT_SPEED_100M 0x0013 + static struct { unsigned char ctrl; unsigned char timer_l;