diff options
Diffstat (limited to 'drivers/net/usb')
37 files changed, 3948 insertions, 2597 deletions
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index b554054a7560..856e648d804e 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig @@ -99,10 +99,9 @@ config USB_RTL8150 config USB_RTL8152 tristate "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters" select MII + select PHYLIB select CRC32 - select CRYPTO - select CRYPTO_HASH - select CRYPTO_SHA256 + select CRYPTO_LIB_SHA256 help This option adds support for Realtek RTL8152 based USB 2.0 10/100 Ethernet adapters and RTL8153 based USB 3.0 10/100/1000 @@ -114,10 +113,10 @@ config USB_RTL8152 config USB_LAN78XX tristate "Microchip LAN78XX Based USB Ethernet Adapters" select MII - select PHYLIB + select PHYLINK select MICROCHIP_PHY - select FIXED_PHY select CRC32 + imply NET_SELFTESTS help This option adds support for Microchip LAN78XX based USB 2 & USB 3 10/100/1000 Ethernet adapters. @@ -168,7 +167,7 @@ config USB_NET_AX8817X tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters" depends on USB_USBNET select CRC32 - select PHYLIB + select PHYLINK select AX88796B_PHY imply NET_SELFTESTS default y @@ -358,6 +357,7 @@ config USB_NET_SMSC95XX select BITREVERSE select CRC16 select CRC32 + imply NET_SELFTESTS help This option adds support for SMSC LAN95XX based USB 2.0 10/100 Ethernet adapters. @@ -582,12 +582,10 @@ config USB_IPHETH default n help Module used to share Internet connection (tethering) from your - iPhone (Original, 3G and 3GS) to your system. - Note that you need userspace libraries and programs that are needed - to pair your device with your system and that understand the iPhone - protocol. - - For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver + iPhone to your system. + Note that you need a corresponding userspace library/program + to pair your device with your system, for example usbmuxd + <https://github.com/libimobiledevice/usbmuxd>. config USB_SIERRA_NET tristate "USB-to-WWAN Driver for Sierra Wireless modems" @@ -636,8 +634,9 @@ config USB_NET_AQC111 * Aquantia AQtion USB to 5GbE config USB_RTL8153_ECM - tristate "RTL8153 ECM support" + tristate depends on USB_NET_CDCETHER && (USB_RTL8152 || USB_RTL8152=n) + default y help This option supports ECM mode for RTL8153 ethernet adapter, when CONFIG_USB_RTL8152 is not set, or the RTL8153 device is not diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c index ea06d10e1c21..9201ee10a13f 100644 --- a/drivers/net/usb/aqc111.c +++ b/drivers/net/usb/aqc111.c @@ -30,11 +30,14 @@ static int aqc111_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value, ret = usbnet_read_cmd_nopm(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, index, data, size); - if (unlikely(ret < 0)) + if (unlikely(ret < size)) { netdev_warn(dev->net, "Failed to read(0x%x) reg index 0x%04x: %d\n", cmd, index, ret); + ret = ret < 0 ? ret : -ENODATA; + } + return ret; } @@ -46,11 +49,14 @@ static int aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value, ret = usbnet_read_cmd(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, index, data, size); - if (unlikely(ret < 0)) + if (unlikely(ret < size)) { netdev_warn(dev->net, "Failed to read(0x%x) reg index 0x%04x: %d\n", cmd, index, ret); + ret = ret < 0 ? ret : -ENODATA; + } + return ret; } @@ -201,7 +207,7 @@ static void aqc111_get_drvinfo(struct net_device *net, /* Inherit standard device info */ usbnet_get_drvinfo(net, info); - strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); + strscpy(info->driver, DRIVER_NAME, sizeof(info->driver)); snprintf(info->fw_version, sizeof(info->fw_version), "%u.%u.%u", aqc111_data->fw_ver.major, aqc111_data->fw_ver.minor, @@ -424,7 +430,7 @@ static int aqc111_change_mtu(struct net_device *net, int new_mtu) u16 reg16 = 0; u8 buf[5]; - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); dev->hard_mtu = net->mtu + net->hard_header_len; aqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE, @@ -735,7 +741,7 @@ static int aqc111_bind(struct usbnet *dev, struct usb_interface *intf) dev->net->features |= AQ_SUPPORT_FEATURE; dev->net->vlan_features |= AQ_SUPPORT_VLAN_FEATURE; - netif_set_gso_max_size(dev->net, 65535); + netif_set_tso_max_size(dev->net, 65535); aqc111_read_fw_version(dev, aqc111_data); aqc111_data->autoneg = AUTONEG_ENABLE; @@ -1079,17 +1085,17 @@ static int aqc111_rx_fixup(struct usbnet *dev, struct sk_buff *skb) u16 pkt_count = 0; u64 desc_hdr = 0; u16 vlan_tag = 0; - u32 skb_len = 0; + u32 skb_len; if (!skb) goto err; - if (skb->len == 0) + skb_len = skb->len; + if (skb_len < sizeof(desc_hdr)) goto err; - skb_len = skb->len; /* RX Descriptor Header */ - skb_trim(skb, skb->len - sizeof(desc_hdr)); + skb_trim(skb, skb_len - sizeof(desc_hdr)); desc_hdr = le64_to_cpup((u64 *)skb_tail_pointer(skb)); /* Check these packets */ @@ -1102,10 +1108,15 @@ static int aqc111_rx_fixup(struct usbnet *dev, struct sk_buff *skb) if (start_of_descs != desc_offset) goto err; - /* self check desc_offset from header*/ - if (desc_offset >= skb_len) + /* self check desc_offset from header and make sure that the + * bounds of the metadata array are inside the SKB + */ + if (pkt_count * 2 + desc_offset >= skb_len) goto err; + /* Packets must not overlap the metadata array */ + skb_trim(skb, desc_offset); + if (pkt_count == 0) goto err; @@ -1136,17 +1147,15 @@ static int aqc111_rx_fixup(struct usbnet *dev, struct sk_buff *skb) continue; } - /* Clone SKB */ - new_skb = skb_clone(skb, GFP_ATOMIC); + new_skb = netdev_alloc_skb_ip_align(dev->net, pkt_len); if (!new_skb) goto err; - new_skb->len = pkt_len; + skb_put(new_skb, pkt_len); + memcpy(new_skb->data, skb->data, pkt_len); skb_pull(new_skb, AQ_RX_HW_PAD); - skb_set_tail_pointer(new_skb, new_skb->len); - new_skb->truesize = SKB_TRUESIZE(new_skb->len); if (aqc111_data->rx_checksum) aqc111_rx_checksum(new_skb, pkt_desc); diff --git a/drivers/net/usb/asix.h b/drivers/net/usb/asix.h index 2a1e31defe71..8531b804021a 100644 --- a/drivers/net/usb/asix.h +++ b/drivers/net/usb/asix.h @@ -27,6 +27,7 @@ #include <linux/if_vlan.h> #include <linux/phy.h> #include <net/selftests.h> +#include <linux/phylink.h> #define DRIVER_VERSION "22-Dec-2011" #define DRIVER_NAME "asix" @@ -126,8 +127,7 @@ AX_MEDIUM_RE) #define AX88772_MEDIUM_DEFAULT \ - (AX_MEDIUM_FD | AX_MEDIUM_RFC | \ - AX_MEDIUM_TFC | AX_MEDIUM_PS | \ + (AX_MEDIUM_FD | AX_MEDIUM_PS | \ AX_MEDIUM_AC | AX_MEDIUM_RE) /* AX88772 & AX88178 RX_CTL values */ @@ -158,6 +158,8 @@ #define AX_EEPROM_MAGIC 0xdeadbeef #define AX_EEPROM_LEN 0x200 +#define AX_EMBD_PHY_ADDR 0x10 + /* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */ struct asix_data { u8 multi_filter[AX_MCAST_FILTER_SIZE]; @@ -177,14 +179,18 @@ struct asix_rx_fixup_info { struct asix_common_private { void (*resume)(struct usbnet *dev); void (*suspend)(struct usbnet *dev); + int (*reset)(struct usbnet *dev, int in_pm); u16 presvd_phy_advertise; u16 presvd_phy_bmcr; struct asix_rx_fixup_info rx_fixup_info; struct mii_bus *mdio; struct phy_device *phydev; + struct phy_device *phydev_int; + struct phylink *phylink; + struct phylink_config phylink_config; u16 phy_addr; - char phy_name[20]; bool embd_phy; + u8 chipcode; }; extern const struct driver_info ax88172a_info; @@ -192,8 +198,8 @@ extern const struct driver_info ax88172a_info; /* ASIX specific flags */ #define FLAG_EEPROM_MAC (1UL << 0) /* init device MAC from eeprom */ -int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data, int in_pm); +int __must_check asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data, int in_pm); int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data, int in_pm); @@ -209,9 +215,6 @@ void asix_rx_fixup_common_free(struct asix_common_private *dp); struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags); -int asix_set_sw_mii(struct usbnet *dev, int in_pm); -int asix_set_hw_mii(struct usbnet *dev, int in_pm); - int asix_read_phy_addr(struct usbnet *dev, bool internal); int asix_sw_reset(struct usbnet *dev, u8 flags, int in_pm); @@ -221,7 +224,6 @@ int asix_write_rx_ctl(struct usbnet *dev, u16 mode, int in_pm); u16 asix_read_medium_status(struct usbnet *dev, int in_pm); int asix_write_medium_mode(struct usbnet *dev, u16 mode, int in_pm); -void asix_adjust_link(struct net_device *netdev); int asix_write_gpio(struct usbnet *dev, u16 value, int sleep, int in_pm); diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c index 71682970be58..7fd763917ae2 100644 --- a/drivers/net/usb/asix_common.c +++ b/drivers/net/usb/asix_common.c @@ -11,8 +11,8 @@ #define AX_HOST_EN_RETRIES 30 -int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data, int in_pm) +int __must_check asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data, int in_pm) { int ret; int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16); @@ -27,9 +27,12 @@ int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, index, data, size); - if (unlikely(ret < 0)) + if (unlikely(ret < size)) { + ret = ret < 0 ? ret : -ENODATA; + netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n", index, ret); + } return ret; } @@ -65,6 +68,27 @@ void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, value, index, data, size); } +static int asix_set_sw_mii(struct usbnet *dev, int in_pm) +{ + int ret; + + ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL, in_pm); + + if (ret < 0) + netdev_err(dev->net, "Failed to enable software MII access\n"); + return ret; +} + +static int asix_set_hw_mii(struct usbnet *dev, int in_pm) +{ + int ret; + + ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL, in_pm); + if (ret < 0) + netdev_err(dev->net, "Failed to enable hardware MII access\n"); + return ret; +} + static int asix_check_host_enable(struct usbnet *dev, int in_pm) { int i, ret; @@ -79,7 +103,7 @@ static int asix_check_host_enable(struct usbnet *dev, int in_pm) 0, 0, 1, &smsr, in_pm); if (ret == -ENODEV) break; - else if (ret < sizeof(smsr)) + else if (ret < 0) continue; else if (smsr & AX_HOST_EN) break; @@ -294,25 +318,6 @@ struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, return skb; } -int asix_set_sw_mii(struct usbnet *dev, int in_pm) -{ - int ret; - ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL, in_pm); - - if (ret < 0) - netdev_err(dev->net, "Failed to enable software MII access\n"); - return ret; -} - -int asix_set_hw_mii(struct usbnet *dev, int in_pm) -{ - int ret; - ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL, in_pm); - if (ret < 0) - netdev_err(dev->net, "Failed to enable hardware MII access\n"); - return ret; -} - int asix_read_phy_addr(struct usbnet *dev, bool internal) { int ret, offset; @@ -409,27 +414,6 @@ int asix_write_medium_mode(struct usbnet *dev, u16 mode, int in_pm) return ret; } -/* set MAC link settings according to information from phylib */ -void asix_adjust_link(struct net_device *netdev) -{ - struct phy_device *phydev = netdev->phydev; - struct usbnet *dev = netdev_priv(netdev); - u16 mode = 0; - - if (phydev->link) { - mode = AX88772_MEDIUM_DEFAULT; - - if (phydev->duplex == DUPLEX_HALF) - mode &= ~AX_MEDIUM_FD; - - if (phydev->speed != SPEED_100) - mode &= ~AX_MEDIUM_PS; - } - - asix_write_medium_mode(dev, mode, 0); - phy_print_status(phydev); -} - int asix_write_gpio(struct usbnet *dev, u16 value, int sleep, int in_pm) { int ret; @@ -488,7 +472,8 @@ void asix_set_multicast(struct net_device *net) asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); } -int asix_mdio_read(struct net_device *netdev, int phy_id, int loc) +static int __asix_mdio_read(struct net_device *netdev, int phy_id, int loc, + bool in_pm) { struct usbnet *dev = netdev_priv(netdev); __le16 res; @@ -496,18 +481,18 @@ int asix_mdio_read(struct net_device *netdev, int phy_id, int loc) mutex_lock(&dev->phy_mutex); - ret = asix_check_host_enable(dev, 0); + ret = asix_check_host_enable(dev, in_pm); if (ret == -ENODEV || ret == -ETIMEDOUT) { mutex_unlock(&dev->phy_mutex); return ret; } ret = asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, - &res, 0); + &res, in_pm); if (ret < 0) goto out; - ret = asix_set_hw_mii(dev, 0); + ret = asix_set_hw_mii(dev, in_pm); out: mutex_unlock(&dev->phy_mutex); @@ -517,8 +502,13 @@ out: return ret < 0 ? ret : le16_to_cpu(res); } +int asix_mdio_read(struct net_device *netdev, int phy_id, int loc) +{ + return __asix_mdio_read(netdev, phy_id, loc, false); +} + static int __asix_mdio_write(struct net_device *netdev, int phy_id, int loc, - int val) + int val, bool in_pm) { struct usbnet *dev = netdev_priv(netdev); __le16 res = cpu_to_le16(val); @@ -529,16 +519,16 @@ static int __asix_mdio_write(struct net_device *netdev, int phy_id, int loc, mutex_lock(&dev->phy_mutex); - ret = asix_check_host_enable(dev, 0); + ret = asix_check_host_enable(dev, in_pm); if (ret == -ENODEV) goto out; ret = asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, - &res, 0); + &res, in_pm); if (ret < 0) goto out; - ret = asix_set_hw_mii(dev, 0); + ret = asix_set_hw_mii(dev, in_pm); out: mutex_unlock(&dev->phy_mutex); @@ -547,7 +537,7 @@ out: void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) { - __asix_mdio_write(netdev, phy_id, loc, val); + __asix_mdio_write(netdev, phy_id, loc, val, false); } /* MDIO read and write wrappers for phylib */ @@ -555,63 +545,25 @@ int asix_mdio_bus_read(struct mii_bus *bus, int phy_id, int regnum) { struct usbnet *priv = bus->priv; - return asix_mdio_read(priv->net, phy_id, regnum); + return __asix_mdio_read(priv->net, phy_id, regnum, false); } int asix_mdio_bus_write(struct mii_bus *bus, int phy_id, int regnum, u16 val) { struct usbnet *priv = bus->priv; - return __asix_mdio_write(priv->net, phy_id, regnum, val); + return __asix_mdio_write(priv->net, phy_id, regnum, val, false); } int asix_mdio_read_nopm(struct net_device *netdev, int phy_id, int loc) { - struct usbnet *dev = netdev_priv(netdev); - __le16 res; - int ret; - - mutex_lock(&dev->phy_mutex); - - ret = asix_check_host_enable(dev, 1); - if (ret == -ENODEV || ret == -ETIMEDOUT) { - mutex_unlock(&dev->phy_mutex); - return ret; - } - - asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, - (__u16)loc, 2, &res, 1); - asix_set_hw_mii(dev, 1); - mutex_unlock(&dev->phy_mutex); - - netdev_dbg(dev->net, "asix_mdio_read_nopm() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", - phy_id, loc, le16_to_cpu(res)); - - return le16_to_cpu(res); + return __asix_mdio_read(netdev, phy_id, loc, true); } void asix_mdio_write_nopm(struct net_device *netdev, int phy_id, int loc, int val) { - struct usbnet *dev = netdev_priv(netdev); - __le16 res = cpu_to_le16(val); - int ret; - - netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", - phy_id, loc, val); - - mutex_lock(&dev->phy_mutex); - - ret = asix_check_host_enable(dev, 1); - if (ret == -ENODEV) { - mutex_unlock(&dev->phy_mutex); - return; - } - - asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, - (__u16)loc, 2, &res, 1); - asix_set_hw_mii(dev, 1); - mutex_unlock(&dev->phy_mutex); + __asix_mdio_write(netdev, phy_id, loc, val, true); } void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) @@ -778,8 +730,8 @@ void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) { /* Inherit standard device info */ usbnet_get_drvinfo(net, info); - strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); - strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); + strscpy(info->driver, DRIVER_NAME, sizeof(info->driver)); + strscpy(info->version, DRIVER_VERSION, sizeof(info->version)); } int asix_set_mac_address(struct net_device *net, void *p) diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c index 4514d35ef4c4..232bbd79a4de 100644 --- a/drivers/net/usb/asix_devices.c +++ b/drivers/net/usb/asix_devices.c @@ -230,7 +230,9 @@ static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf) int i; unsigned long gpio_bits = dev->driver_info->data; - usbnet_get_endpoints(dev,intf); + ret = usbnet_get_endpoints(dev, intf); + if (ret) + goto out; /* Toggle the GPIOs in a manufacturer/model specific way */ for (i = 2; i >= 0; i--) { @@ -303,6 +305,24 @@ static int ax88772_ethtool_get_sset_count(struct net_device *ndev, int sset) } } +static void ax88772_ethtool_get_pauseparam(struct net_device *ndev, + struct ethtool_pauseparam *pause) +{ + struct usbnet *dev = netdev_priv(ndev); + struct asix_common_private *priv = dev->driver_priv; + + phylink_ethtool_get_pauseparam(priv->phylink, pause); +} + +static int ax88772_ethtool_set_pauseparam(struct net_device *ndev, + struct ethtool_pauseparam *pause) +{ + struct usbnet *dev = netdev_priv(ndev); + struct asix_common_private *priv = dev->driver_priv; + + return phylink_ethtool_set_pauseparam(priv->phylink, pause); +} + static const struct ethtool_ops ax88772_ethtool_ops = { .get_drvinfo = asix_get_drvinfo, .get_link = usbnet_get_link, @@ -319,6 +339,8 @@ static const struct ethtool_ops ax88772_ethtool_ops = { .self_test = net_selftest, .get_strings = ax88772_ethtool_get_strings, .get_sset_count = ax88772_ethtool_get_sset_count, + .get_pauseparam = ax88772_ethtool_get_pauseparam, + .set_pauseparam = ax88772_ethtool_set_pauseparam, }; static int ax88772_reset(struct usbnet *dev) @@ -343,7 +365,7 @@ static int ax88772_reset(struct usbnet *dev) if (ret < 0) goto out; - phy_start(priv->phydev); + phylink_start(priv->phylink); return 0; @@ -450,7 +472,6 @@ static int ax88772a_hw_reset(struct usbnet *dev, int in_pm) struct asix_data *data = (struct asix_data *)&dev->data; struct asix_common_private *priv = dev->driver_priv; u16 rx_ctl, phy14h, phy15h, phy16h; - u8 chipcode = 0; int ret; ret = asix_write_gpio(dev, AX_GPIO_RSE, 5, in_pm); @@ -493,12 +514,7 @@ static int ax88772a_hw_reset(struct usbnet *dev, int in_pm) goto out; } - ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0, - 0, 1, &chipcode, in_pm); - if (ret < 0) - goto out; - - if ((chipcode & AX_CHIPCODE_MASK) == AX_AX88772B_CHIPCODE) { + if (priv->chipcode == AX_AX88772B_CHIPCODE) { ret = asix_write_cmd(dev, AX_QCTCTRL, 0x8000, 0x8001, 0, NULL, in_pm); if (ret < 0) { @@ -506,7 +522,7 @@ static int ax88772a_hw_reset(struct usbnet *dev, int in_pm) ret); goto out; } - } else if ((chipcode & AX_CHIPCODE_MASK) == AX_AX88772A_CHIPCODE) { + } else if (priv->chipcode == AX_AX88772A_CHIPCODE) { /* Check if the PHY registers have default settings */ phy14h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id, AX88772A_PHY14H); @@ -596,8 +612,11 @@ static void ax88772_suspend(struct usbnet *dev) struct asix_common_private *priv = dev->driver_priv; u16 medium; - if (netif_running(dev->net)) - phy_stop(priv->phydev); + if (netif_running(dev->net)) { + rtnl_lock(); + phylink_suspend(priv->phylink, false); + rtnl_unlock(); + } /* Stop MAC operation */ medium = asix_read_medium_status(dev, 1); @@ -608,6 +627,21 @@ static void ax88772_suspend(struct usbnet *dev) asix_read_medium_status(dev, 1)); } +/* Notes on PM callbacks and locking context: + * + * - asix_suspend()/asix_resume() are invoked for both runtime PM and + * system-wide suspend/resume. For struct usb_driver the ->resume() + * callback does not receive pm_message_t, so the resume type cannot + * be distinguished here. + * + * - The MAC driver must hold RTNL when calling phylink interfaces such as + * phylink_suspend()/resume(). Those calls will also perform MDIO I/O. + * + * - Taking RTNL and doing MDIO from a runtime-PM resume callback (while + * the USB PM lock is held) is fragile. Since autosuspend brings no + * measurable power saving here, we block it by holding a PM usage + * reference in ax88772_bind(). + */ static int asix_suspend(struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); @@ -625,25 +659,14 @@ static void ax88772_resume(struct usbnet *dev) int i; for (i = 0; i < 3; i++) - if (!ax88772_hw_reset(dev, 1)) + if (!priv->reset(dev, 1)) break; - if (netif_running(dev->net)) - phy_start(priv->phydev); -} - -static void ax88772a_resume(struct usbnet *dev) -{ - struct asix_common_private *priv = dev->driver_priv; - int i; - - for (i = 0; i < 3; i++) { - if (!ax88772a_hw_reset(dev, 1)) - break; + if (netif_running(dev->net)) { + rtnl_lock(); + phylink_resume(priv->phylink); + rtnl_unlock(); } - - if (netif_running(dev->net)) - phy_start(priv->phydev); } static int asix_resume(struct usb_interface *intf) @@ -660,8 +683,9 @@ static int asix_resume(struct usb_interface *intf) static int ax88772_init_mdio(struct usbnet *dev) { struct asix_common_private *priv = dev->driver_priv; + int ret; - priv->mdio = devm_mdiobus_alloc(&dev->udev->dev); + priv->mdio = mdiobus_alloc(); if (!priv->mdio) return -ENOMEM; @@ -669,11 +693,25 @@ static int ax88772_init_mdio(struct usbnet *dev) priv->mdio->read = &asix_mdio_bus_read; priv->mdio->write = &asix_mdio_bus_write; priv->mdio->name = "Asix MDIO Bus"; + priv->mdio->phy_mask = ~(BIT(priv->phy_addr & 0x1f) | BIT(AX_EMBD_PHY_ADDR)); /* mii bus name is usb-<usb bus number>-<usb device number> */ snprintf(priv->mdio->id, MII_BUS_ID_SIZE, "usb-%03d:%03d", dev->udev->bus->busnum, dev->udev->devnum); - return devm_mdiobus_register(&dev->udev->dev, priv->mdio); + ret = mdiobus_register(priv->mdio); + if (ret) { + netdev_err(dev->net, "Could not register MDIO bus (err %d)\n", ret); + mdiobus_free(priv->mdio); + priv->mdio = NULL; + } + + return ret; +} + +static void ax88772_mdio_unregister(struct asix_common_private *priv) +{ + mdiobus_unregister(priv->mdio); + mdiobus_free(priv->mdio); } static int ax88772_init_phy(struct usbnet *dev) @@ -681,30 +719,129 @@ static int ax88772_init_phy(struct usbnet *dev) struct asix_common_private *priv = dev->driver_priv; int ret; - snprintf(priv->phy_name, sizeof(priv->phy_name), PHY_ID_FMT, - priv->mdio->id, priv->phy_addr); + priv->phydev = mdiobus_get_phy(priv->mdio, priv->phy_addr); + if (!priv->phydev) { + netdev_err(dev->net, "Could not find PHY\n"); + return -ENODEV; + } - priv->phydev = phy_connect(dev->net, priv->phy_name, &asix_adjust_link, - PHY_INTERFACE_MODE_INTERNAL); - if (IS_ERR(priv->phydev)) { - netdev_err(dev->net, "Could not connect to PHY device %s\n", - priv->phy_name); - ret = PTR_ERR(priv->phydev); + ret = phylink_connect_phy(priv->phylink, priv->phydev); + if (ret) { + netdev_err(dev->net, "Could not connect PHY\n"); return ret; } phy_suspend(priv->phydev); - priv->phydev->mac_managed_pm = 1; + priv->phydev->mac_managed_pm = true; phy_attached_info(priv->phydev); + if (priv->embd_phy) + return 0; + + /* In case main PHY is not the embedded PHY and MAC is RMII clock + * provider, we need to suspend embedded PHY by keeping PLL enabled + * (AX_SWRESET_IPPD == 0). + */ + priv->phydev_int = mdiobus_get_phy(priv->mdio, AX_EMBD_PHY_ADDR); + if (!priv->phydev_int) { + rtnl_lock(); + phylink_disconnect_phy(priv->phylink); + rtnl_unlock(); + netdev_err(dev->net, "Could not find internal PHY\n"); + return -ENODEV; + } + + priv->phydev_int->mac_managed_pm = true; + phy_suspend(priv->phydev_int); + + return 0; +} + +static void ax88772_mac_config(struct phylink_config *config, unsigned int mode, + const struct phylink_link_state *state) +{ + /* Nothing to do */ +} + +static void ax88772_mac_link_down(struct phylink_config *config, + unsigned int mode, phy_interface_t interface) +{ + struct usbnet *dev = netdev_priv(to_net_dev(config->dev)); + + asix_write_medium_mode(dev, 0, 0); +} + +static void ax88772_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, + bool tx_pause, bool rx_pause) +{ + struct usbnet *dev = netdev_priv(to_net_dev(config->dev)); + u16 m = AX_MEDIUM_AC | AX_MEDIUM_RE; + + m |= duplex ? AX_MEDIUM_FD : 0; + + switch (speed) { + case SPEED_100: + m |= AX_MEDIUM_PS; + break; + case SPEED_10: + break; + default: + return; + } + + if (tx_pause) + m |= AX_MEDIUM_TFC; + + if (rx_pause) + m |= AX_MEDIUM_RFC; + + asix_write_medium_mode(dev, m, 0); +} + +static const struct phylink_mac_ops ax88772_phylink_mac_ops = { + .mac_config = ax88772_mac_config, + .mac_link_down = ax88772_mac_link_down, + .mac_link_up = ax88772_mac_link_up, +}; + +static int ax88772_phylink_setup(struct usbnet *dev) +{ + struct asix_common_private *priv = dev->driver_priv; + phy_interface_t phy_if_mode; + struct phylink *phylink; + + priv->phylink_config.dev = &dev->net->dev; + priv->phylink_config.type = PHYLINK_NETDEV; + priv->phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE | + MAC_10 | MAC_100; + + __set_bit(PHY_INTERFACE_MODE_INTERNAL, + priv->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_RMII, + priv->phylink_config.supported_interfaces); + + if (priv->embd_phy) + phy_if_mode = PHY_INTERFACE_MODE_INTERNAL; + else + phy_if_mode = PHY_INTERFACE_MODE_RMII; + + phylink = phylink_create(&priv->phylink_config, dev->net->dev.fwnode, + phy_if_mode, &ax88772_phylink_mac_ops); + if (IS_ERR(phylink)) + return PTR_ERR(phylink); + + priv->phylink = phylink; return 0; } static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) { - u8 buf[ETH_ALEN] = {0}, chipcode = 0; struct asix_common_private *priv; + u8 buf[ETH_ALEN] = {0}; int ret, i; priv = devm_kzalloc(&dev->udev->dev, sizeof(*priv), GFP_KERNEL); @@ -713,7 +850,9 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) dev->driver_priv = priv; - usbnet_get_endpoints(dev, intf); + ret = usbnet_get_endpoints(dev, intf); + if (ret) + return ret; /* Maybe the boot loader passed the MAC address via device tree */ if (!eth_platform_get_mac_address(&dev->udev->dev, buf)) { @@ -753,14 +892,25 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) return ret; priv->phy_addr = ret; - priv->embd_phy = ((priv->phy_addr & 0x1f) == 0x10); + priv->embd_phy = ((priv->phy_addr & 0x1f) == AX_EMBD_PHY_ADDR); + + ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0, 0, 1, + &priv->chipcode, 0); + if (ret < 0) { + netdev_dbg(dev->net, "Failed to read STATMNGSTS_REG: %d\n", ret); + return ret; + } - asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0, 0, 1, &chipcode, 0); - chipcode &= AX_CHIPCODE_MASK; + priv->chipcode &= AX_CHIPCODE_MASK; - ret = (chipcode == AX_AX88772_CHIPCODE) ? ax88772_hw_reset(dev, 0) : - ax88772a_hw_reset(dev, 0); + priv->resume = ax88772_resume; + priv->suspend = ax88772_suspend; + if (priv->chipcode == AX_AX88772_CHIPCODE) + priv->reset = ax88772_hw_reset; + else + priv->reset = ax88772a_hw_reset; + ret = priv->reset(dev, 0); if (ret < 0) { netdev_dbg(dev->net, "Failed to reset AX88772: %d\n", ret); return ret; @@ -775,30 +925,41 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) priv->presvd_phy_bmcr = 0; priv->presvd_phy_advertise = 0; - if (chipcode == AX_AX88772_CHIPCODE) { - priv->resume = ax88772_resume; - priv->suspend = ax88772_suspend; - } else { - priv->resume = ax88772a_resume; - priv->suspend = ax88772_suspend; - } ret = ax88772_init_mdio(dev); if (ret) - return ret; + goto mdio_err; + + ret = ax88772_phylink_setup(dev); + if (ret) + goto phylink_err; + + ret = ax88772_init_phy(dev); + if (ret) + goto initphy_err; + + /* Keep this interface runtime-PM active by taking a usage ref. + * Prevents runtime suspend while bound and avoids resume paths + * that could deadlock (autoresume under RTNL while USB PM lock + * is held, phylink/MDIO wants RTNL). + */ + pm_runtime_get_noresume(&intf->dev); - return ax88772_init_phy(dev); + return 0; + +initphy_err: + phylink_destroy(priv->phylink); +phylink_err: + ax88772_mdio_unregister(priv); +mdio_err: + return ret; } static int ax88772_stop(struct usbnet *dev) { struct asix_common_private *priv = dev->driver_priv; - /* On unplugged USB, we will get MDIO communication errors and the - * PHY will be set in to PHY_HALTED state. - */ - if (priv->phydev->state != PHY_HALTED) - phy_stop(priv->phydev); + phylink_stop(priv->phylink); return 0; } @@ -807,8 +968,14 @@ static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf) { struct asix_common_private *priv = dev->driver_priv; - phy_disconnect(priv->phydev); + rtnl_lock(); + phylink_disconnect_phy(priv->phylink); + rtnl_unlock(); + phylink_destroy(priv->phylink); + ax88772_mdio_unregister(priv); asix_rx_fixup_common_free(dev->driver_priv); + /* Drop the PM usage ref taken in bind() */ + pm_runtime_put(&intf->dev); } static void ax88178_unbind(struct usbnet *dev, struct usb_interface *intf) @@ -858,7 +1025,6 @@ static int marvell_phy_init(struct usbnet *dev) reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_LED_CTRL); netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg); - reg &= 0xfc0f; } return 0; @@ -920,11 +1086,21 @@ static int ax88178_reset(struct usbnet *dev) int gpio0 = 0; u32 phyid; - asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status, 0); + ret = asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status, 0); + if (ret < 0) { + netdev_dbg(dev->net, "Failed to read GPIOS: %d\n", ret); + return ret; + } + netdev_dbg(dev->net, "GPIO Status: 0x%04x\n", status); asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL, 0); - asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom, 0); + ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom, 0); + if (ret < 0) { + netdev_dbg(dev->net, "Failed to read EEPROM: %d\n", ret); + return ret; + } + asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL, 0); netdev_dbg(dev->net, "EEPROM index 0x17 is 0x%04x\n", eeprom); @@ -1081,7 +1257,7 @@ static int ax88178_change_mtu(struct net_device *net, int new_mtu) if ((ll_mtu % dev->maxpacket) == 0) return -EDOM; - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); dev->hard_mtu = net->mtu + net->hard_header_len; ax88178_set_mfb(dev); @@ -1109,7 +1285,9 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf) int ret; u8 buf[ETH_ALEN] = {0}; - usbnet_get_endpoints(dev,intf); + ret = usbnet_get_endpoints(dev, intf); + if (ret) + return ret; /* Get the MAC address */ ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0); @@ -1201,10 +1379,9 @@ static const struct driver_info ax88772_info = { .description = "ASIX AX88772 USB 2.0 Ethernet", .bind = ax88772_bind, .unbind = ax88772_unbind, - .status = asix_status, .reset = ax88772_reset, .stop = ax88772_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET, .rx_fixup = asix_rx_fixup_common, .tx_fixup = asix_tx_fixup, }; @@ -1213,11 +1390,21 @@ static const struct driver_info ax88772b_info = { .description = "ASIX AX88772B USB 2.0 Ethernet", .bind = ax88772_bind, .unbind = ax88772_unbind, - .status = asix_status, .reset = ax88772_reset, .stop = ax88772_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | - FLAG_MULTI_PACKET, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET, + .rx_fixup = asix_rx_fixup_common, + .tx_fixup = asix_tx_fixup, + .data = FLAG_EEPROM_MAC, +}; + +static const struct driver_info lxausb_t1l_info = { + .description = "Linux Automation GmbH USB 10Base-T1L", + .bind = ax88772_bind, + .unbind = ax88772_unbind, + .reset = ax88772_reset, + .stop = ax88772_stop, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET, .rx_fixup = asix_rx_fixup_common, .tx_fixup = asix_tx_fixup, .data = FLAG_EEPROM_MAC, @@ -1249,15 +1436,26 @@ static const struct driver_info hg20f9_info = { .description = "HG20F9 USB 2.0 Ethernet", .bind = ax88772_bind, .unbind = ax88772_unbind, - .status = asix_status, .reset = ax88772_reset, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | - FLAG_MULTI_PACKET, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET, .rx_fixup = asix_rx_fixup_common, .tx_fixup = asix_tx_fixup, .data = FLAG_EEPROM_MAC, }; +static const struct driver_info lyconsys_fibergecko100_info = { + .description = "LyconSys FiberGecko 100 USB 2.0 to SFP Adapter", + .bind = ax88178_bind, + .status = asix_status, + .link_reset = ax88178_link_reset, + .reset = ax88178_link_reset, + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | + FLAG_MULTI_PACKET, + .rx_fixup = asix_rx_fixup_common, + .tx_fixup = asix_tx_fixup, + .data = 0x20061201, +}; + static const struct usb_device_id products [] = { { // Linksys USB200M @@ -1411,6 +1609,14 @@ static const struct usb_device_id products [] = { */ USB_DEVICE(0x066b, 0x20f9), .driver_info = (unsigned long) &hg20f9_info, +}, { + // Linux Automation GmbH USB 10Base-T1L + USB_DEVICE(0x33f7, 0x0004), + .driver_info = (unsigned long) &lxausb_t1l_info, +}, { + /* LyconSys FiberGecko 100 */ + USB_DEVICE(0x1d2a, 0x0801), + .driver_info = (unsigned long) &lyconsys_fibergecko100_info, }, { }, // END }; @@ -1424,6 +1630,11 @@ static struct usb_driver asix_driver = { .resume = asix_resume, .reset_resume = asix_resume, .disconnect = usbnet_disconnect, + /* usbnet enables autosuspend by default (supports_autosuspend=1). + * We keep runtime-PM active for AX88772* by taking a PM usage + * reference in ax88772_bind() (pm_runtime_get_noresume()) and + * dropping it in unbind(), which effectively blocks autosuspend. + */ .supports_autosuspend = 1, .disable_hub_initiated_lpm = 1, }; diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c index 3777c7e2e6fc..f613e4bc68c8 100644 --- a/drivers/net/usb/ax88172a.c +++ b/drivers/net/usb/ax88172a.c @@ -18,8 +18,8 @@ struct ax88172a_private { struct mii_bus *mdio; struct phy_device *phydev; - char phy_name[20]; - u16 phy_addr; + char phy_name[PHY_ID_SIZE]; + u8 phy_addr; u16 oldmode; int use_embdphy; struct asix_rx_fixup_info rx_fixup_info; @@ -161,7 +161,9 @@ static int ax88172a_bind(struct usbnet *dev, struct usb_interface *intf) u8 buf[ETH_ALEN]; struct ax88172a_private *priv; - usbnet_get_endpoints(dev, intf); + ret = usbnet_get_endpoints(dev, intf); + if (ret) + return ret; priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) @@ -208,7 +210,11 @@ static int ax88172a_bind(struct usbnet *dev, struct usb_interface *intf) ret = asix_read_phy_addr(dev, priv->use_embdphy); if (ret < 0) goto free; - + if (ret >= PHY_MAX_ADDR) { + netdev_err(dev->net, "Invalid PHY address %#x\n", ret); + ret = -ENODEV; + goto free; + } priv->phy_addr = ret; ax88172a_reset_phy(dev, priv->use_embdphy); @@ -306,7 +312,7 @@ static int ax88172a_reset(struct usbnet *dev) rx_ctl); /* Connect to PHY */ - snprintf(priv->phy_name, 20, PHY_ID_FMT, + snprintf(priv->phy_name, sizeof(priv->phy_name), PHY_ID_FMT, priv->mdio->id, priv->phy_addr); priv->phydev = phy_connect(dev->net, priv->phy_name, diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c index 1a627ba4b850..b034ef8a73ea 100644 --- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -164,11 +164,16 @@ #define GMII_PHY_PGSEL_PAGE3 0x0003 #define GMII_PHY_PGSEL_PAGE5 0x0005 +static int ax88179_reset(struct usbnet *dev); + struct ax88179_data { u8 eee_enabled; u8 eee_active; u16 rxctl; - u16 reserved; + u8 in_pm; + u32 wol_supported; + u32 wolopts; + u8 disconnecting; }; struct ax88179_int_data { @@ -185,15 +190,30 @@ static const struct { {7, 0xcc, 0x4c, 0x18, 8}, }; +static void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode) +{ + struct ax88179_data *ax179_data = dev->driver_priv; + + ax179_data->in_pm = pm_mode; +} + +static int ax88179_in_pm(struct usbnet *dev) +{ + struct ax88179_data *ax179_data = dev->driver_priv; + + return ax179_data->in_pm; +} + static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data, int in_pm) + u16 size, void *data) { int ret; int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16); + struct ax88179_data *ax179_data = dev->driver_priv; BUG_ON(!dev); - if (!in_pm) + if (!ax88179_in_pm(dev)) fn = usbnet_read_cmd; else fn = usbnet_read_cmd_nopm; @@ -201,7 +221,7 @@ static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, index, data, size); - if (unlikely(ret < 0)) + if (unlikely((ret < 0) && !(ret == -ENODEV && ax179_data->disconnecting))) netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n", index, ret); @@ -209,14 +229,15 @@ static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, } static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, const void *data, int in_pm) + u16 size, const void *data) { int ret; int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16); + struct ax88179_data *ax179_data = dev->driver_priv; BUG_ON(!dev); - if (!in_pm) + if (!ax88179_in_pm(dev)) fn = usbnet_write_cmd; else fn = usbnet_write_cmd_nopm; @@ -224,7 +245,7 @@ static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, index, data, size); - if (unlikely(ret < 0)) + if (unlikely((ret < 0) && !(ret == -ENODEV && ax179_data->disconnecting))) netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n", index, ret); @@ -249,47 +270,6 @@ static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, } } -static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value, - u16 index, u16 size, void *data) -{ - int ret; - - if (2 == size) { - u16 buf; - ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1); - le16_to_cpus(&buf); - *((u16 *)data) = buf; - } else if (4 == size) { - u32 buf; - ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1); - le32_to_cpus(&buf); - *((u32 *)data) = buf; - } else { - ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1); - } - - return ret; -} - -static int ax88179_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value, - u16 index, u16 size, const void *data) -{ - int ret; - - if (2 == size) { - u16 buf; - buf = *((u16 *)data); - cpu_to_le16s(&buf); - ret = __ax88179_write_cmd(dev, cmd, value, index, - size, &buf, 1); - } else { - ret = __ax88179_write_cmd(dev, cmd, value, index, - size, data, 1); - } - - return ret; -} - static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data) { @@ -297,16 +277,16 @@ static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, if (2 == size) { u16 buf = 0; - ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0); + ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf); le16_to_cpus(&buf); *((u16 *)data) = buf; } else if (4 == size) { u32 buf = 0; - ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0); + ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf); le32_to_cpus(&buf); *((u32 *)data) = buf; } else { - ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 0); + ret = __ax88179_read_cmd(dev, cmd, value, index, size, data); } return ret; @@ -322,10 +302,10 @@ static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, buf = *((u16 *)data); cpu_to_le16s(&buf); ret = __ax88179_write_cmd(dev, cmd, value, index, - size, &buf, 0); + size, &buf); } else { ret = __ax88179_write_cmd(dev, cmd, value, index, - size, data, 0); + size, data); } return ret; @@ -346,7 +326,8 @@ static void ax88179_status(struct usbnet *dev, struct urb *urb) if (netif_carrier_ok(dev->net) != link) { usbnet_link_change(dev, link, 1); - netdev_info(dev->net, "ax88179 - Link status is: %d\n", link); + if (!link) + netdev_info(dev->net, "ax88179 - Link status is: 0\n"); } } @@ -425,55 +406,63 @@ ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad, static int ax88179_suspend(struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); + struct ax88179_data *priv = dev->driver_priv; u16 tmp16; u8 tmp8; + ax88179_set_pm_mode(dev, true); + usbnet_suspend(intf, message); + /* Enable WoL */ + if (priv->wolopts) { + ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, + 1, 1, &tmp8); + if (priv->wolopts & WAKE_PHY) + tmp8 |= AX_MONITOR_MODE_RWLC; + if (priv->wolopts & WAKE_MAGIC) + tmp8 |= AX_MONITOR_MODE_RWMP; + + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, + 1, 1, &tmp8); + } + /* Disable RX path */ - ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, - 2, 2, &tmp16); + ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, + 2, 2, &tmp16); tmp16 &= ~AX_MEDIUM_RECEIVE_EN; - ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, - 2, 2, &tmp16); + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, + 2, 2, &tmp16); /* Force bulk-in zero length */ - ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, - 2, 2, &tmp16); + ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, + 2, 2, &tmp16); tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL; - ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, - 2, 2, &tmp16); + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, + 2, 2, &tmp16); /* change clock */ tmp8 = 0; - ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8); + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8); /* Configure RX control register => stop operation */ tmp16 = AX_RX_CTL_STOP; - ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16); + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16); + + ax88179_set_pm_mode(dev, false); return 0; } /* This function is used to enable the autodetach function. */ /* This function is determined by offset 0x43 of EEPROM */ -static int ax88179_auto_detach(struct usbnet *dev, int in_pm) +static int ax88179_auto_detach(struct usbnet *dev) { u16 tmp16; u8 tmp8; - int (*fnr)(struct usbnet *, u8, u16, u16, u16, void *); - int (*fnw)(struct usbnet *, u8, u16, u16, u16, const void *); - - if (!in_pm) { - fnr = ax88179_read_cmd; - fnw = ax88179_write_cmd; - } else { - fnr = ax88179_read_cmd_nopm; - fnw = ax88179_write_cmd_nopm; - } - if (fnr(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0) + if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0) return 0; if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100))) @@ -481,13 +470,13 @@ static int ax88179_auto_detach(struct usbnet *dev, int in_pm) /* Enable Auto Detach bit */ tmp8 = 0; - fnr(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8); + ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8); tmp8 |= AX_CLK_SELECT_ULR; - fnw(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8); + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8); - fnr(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16); + ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16); tmp16 |= AX_PHYPWR_RSTCTL_AT; - fnw(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16); + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16); return 0; } @@ -495,77 +484,52 @@ static int ax88179_auto_detach(struct usbnet *dev, int in_pm) static int ax88179_resume(struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); - u16 tmp16; - u8 tmp8; + + ax88179_set_pm_mode(dev, true); usbnet_link_change(dev, 0, 0); - /* Power up ethernet PHY */ - tmp16 = 0; - ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, - 2, 2, &tmp16); - udelay(1000); + ax88179_reset(dev); - tmp16 = AX_PHYPWR_RSTCTL_IPRL; - ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, - 2, 2, &tmp16); - msleep(200); + ax88179_set_pm_mode(dev, false); - /* Ethernet PHY Auto Detach*/ - ax88179_auto_detach(dev, 1); + return usbnet_resume(intf); +} - /* Enable clock */ - ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8); - tmp8 |= AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS; - ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8); - msleep(100); +static void ax88179_disconnect(struct usb_interface *intf) +{ + struct usbnet *dev = usb_get_intfdata(intf); + struct ax88179_data *ax179_data; - /* Configure RX control register => start operation */ - tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START | - AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB; - ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16); + if (!dev) + return; - return usbnet_resume(intf); + ax179_data = dev->driver_priv; + ax179_data->disconnecting = 1; + + usbnet_disconnect(intf); } static void ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) { struct usbnet *dev = netdev_priv(net); - u8 opt; + struct ax88179_data *priv = dev->driver_priv; - if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, - 1, 1, &opt) < 0) { - wolinfo->supported = 0; - wolinfo->wolopts = 0; - return; - } - - wolinfo->supported = WAKE_PHY | WAKE_MAGIC; - wolinfo->wolopts = 0; - if (opt & AX_MONITOR_MODE_RWLC) - wolinfo->wolopts |= WAKE_PHY; - if (opt & AX_MONITOR_MODE_RWMP) - wolinfo->wolopts |= WAKE_MAGIC; + wolinfo->supported = priv->wol_supported; + wolinfo->wolopts = priv->wolopts; } static int ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) { struct usbnet *dev = netdev_priv(net); - u8 opt = 0; + struct ax88179_data *priv = dev->driver_priv; - if (wolinfo->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) + if (wolinfo->wolopts & ~(priv->wol_supported)) return -EINVAL; - if (wolinfo->wolopts & WAKE_PHY) - opt |= AX_MONITOR_MODE_RWLC; - if (wolinfo->wolopts & WAKE_MAGIC) - opt |= AX_MONITOR_MODE_RWMP; - - if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, - 1, 1, &opt) < 0) - return -EINVAL; + priv->wolopts = wolinfo->wolopts; return 0; } @@ -599,8 +563,7 @@ ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, /* ax88179/178A returns 2 bytes from eeprom on read */ for (i = first_word; i <= last_word; i++) { ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2, - &eeprom_buff[i - first_word], - 0); + &eeprom_buff[i - first_word]); if (ret < 0) { kfree(eeprom_buff); return -EIO; @@ -705,7 +668,7 @@ static int ax88179_set_link_ksettings(struct net_device *net, } static int -ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data) +ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_keee *data) { int val; @@ -714,29 +677,29 @@ ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data) MDIO_MMD_PCS); if (val < 0) return val; - data->supported = mmd_eee_cap_to_ethtool_sup_t(val); + mii_eee_cap1_mod_linkmode_t(data->supported, val); /* Get advertisement EEE */ val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV, MDIO_MMD_AN); if (val < 0) return val; - data->advertised = mmd_eee_adv_to_ethtool_adv_t(val); + mii_eee_cap1_mod_linkmode_t(data->advertised, val); /* Get LP advertisement EEE */ val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE, MDIO_MMD_AN); if (val < 0) return val; - data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val); + mii_eee_cap1_mod_linkmode_t(data->lp_advertised, val); return 0; } static int -ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data) +ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_keee *data) { - u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised); + u16 tmp16 = linkmode_to_mii_eee_cap1_t(data->advertised); return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, tmp16); @@ -745,7 +708,7 @@ ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data) static int ax88179_chk_eee(struct usbnet *dev) { struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; - struct ax88179_data *priv = (struct ax88179_data *)dev->data; + struct ax88179_data *priv = dev->driver_priv; mii_ethtool_gset(&dev->mii, &ecmd); @@ -845,10 +808,10 @@ static void ax88179_enable_eee(struct usbnet *dev) GMII_PHY_PAGE_SELECT, 2, &tmp16); } -static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata) +static int ax88179_get_eee(struct net_device *net, struct ethtool_keee *edata) { struct usbnet *dev = netdev_priv(net); - struct ax88179_data *priv = (struct ax88179_data *)dev->data; + struct ax88179_data *priv = dev->driver_priv; edata->eee_enabled = priv->eee_enabled; edata->eee_active = priv->eee_active; @@ -856,10 +819,10 @@ static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata) return ax88179_ethtool_get_eee(dev, edata); } -static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata) +static int ax88179_set_eee(struct net_device *net, struct ethtool_keee *edata) { struct usbnet *dev = netdev_priv(net); - struct ax88179_data *priv = (struct ax88179_data *)dev->data; + struct ax88179_data *priv = dev->driver_priv; int ret; priv->eee_enabled = edata->eee_enabled; @@ -910,8 +873,8 @@ static const struct ethtool_ops ax88179_ethtool_ops = { static void ax88179_set_multicast(struct net_device *net) { struct usbnet *dev = netdev_priv(net); - struct ax88179_data *data = (struct ax88179_data *)dev->data; - u8 *m_filter = ((u8 *)dev->data) + 12; + struct ax88179_data *data = dev->driver_priv; + u8 *m_filter = ((u8 *)dev->data); data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE); @@ -923,7 +886,7 @@ static void ax88179_set_multicast(struct net_device *net) } else if (netdev_mc_empty(net)) { /* just broadcast and directed */ } else { - /* We use the 20 byte dev->data for our 8 byte filter buffer + /* We use dev->data for our 8 byte filter buffer * to avoid allocating memory that is tricky to free later */ u32 crc_bits; @@ -981,7 +944,7 @@ static int ax88179_change_mtu(struct net_device *net, int new_mtu) struct usbnet *dev = netdev_priv(net); u16 tmp16; - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); dev->hard_mtu = net->mtu + net->hard_header_len; if (net->mtu > 1500) { @@ -1069,7 +1032,7 @@ static int ax88179_check_eeprom(struct usbnet *dev) } while (buf & EEP_BUSY); __ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW, - 2, 2, &eeprom[i * 2], 0); + 2, 2, &eeprom[i * 2]); if ((i == 0) && (eeprom[0] == 0xFF)) return -EINVAL; @@ -1311,9 +1274,10 @@ static void ax88179_get_mac_addr(struct usbnet *dev) if (is_valid_ether_addr(mac)) { eth_hw_addr_set(dev->net, mac); + if (!is_local_ether_addr(mac)) + dev->net->addr_assign_type = NET_ADDR_PERM; } else { netdev_info(dev->net, "invalid MAC address, using random\n"); - eth_hw_addr_random(dev->net); } ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN, @@ -1322,46 +1286,18 @@ static void ax88179_get_mac_addr(struct usbnet *dev) static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf) { - u8 buf[5]; - u16 *tmp16; - u8 *tmp; - struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data; - struct ethtool_eee eee_data; - - usbnet_get_endpoints(dev, intf); - - tmp16 = (u16 *)buf; - tmp = (u8 *)buf; - - memset(ax179_data, 0, sizeof(*ax179_data)); - - /* Power up ethernet PHY */ - *tmp16 = 0; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); - *tmp16 = AX_PHYPWR_RSTCTL_IPRL; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); - msleep(200); - - *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp); - msleep(100); - - /* Read MAC address from DTB or asix chip */ - ax88179_get_mac_addr(dev); - memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN); - - /* RX bulk configuration */ - memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5); - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp); + struct ax88179_data *ax179_data; + int ret; - dev->rx_urb_size = 1024 * 20; + ret = usbnet_get_endpoints(dev, intf); + if (ret < 0) + return ret; - *tmp = 0x34; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp); + ax179_data = kzalloc(sizeof(*ax179_data), GFP_KERNEL); + if (!ax179_data) + return -ENOMEM; - *tmp = 0x52; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH, - 1, 1, tmp); + dev->driver_priv = ax179_data; dev->net->netdev_ops = &ax88179_netdev_ops; dev->net->ethtool_ops = &ax88179_ethtool_ops; @@ -1382,54 +1318,16 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf) dev->net->hw_features |= dev->net->features; - netif_set_gso_max_size(dev->net, 16384); - - /* Enable checksum offload */ - *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP | - AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp); - - *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP | - AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp); - - /* Configure RX control register => start operation */ - *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START | - AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16); - - *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL | - AX_MONITOR_MODE_RWMP; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp); - - /* Configure default medium type => giga */ - *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN | - AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX | - AX_MEDIUM_GIGAMODE; - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, - 2, 2, tmp16); - - ax88179_led_setting(dev); - - ax179_data->eee_enabled = 0; - ax179_data->eee_active = 0; - - ax88179_disable_eee(dev); + netif_set_tso_max_size(dev->net, 16384); - ax88179_ethtool_get_eee(dev, &eee_data); - eee_data.advertised = 0; - ax88179_ethtool_set_eee(dev, &eee_data); - - /* Restart autoneg */ - mii_nway_restart(&dev->mii); - - usbnet_link_change(dev, 0, 0); + ax88179_reset(dev); return 0; } static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf) { + struct ax88179_data *ax179_data = dev->driver_priv; u16 tmp16; /* Configure RX control register => stop operation */ @@ -1442,6 +1340,8 @@ static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf) /* Power down ethernet PHY */ tmp16 = 0; ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16); + + kfree(ax179_data); } static void @@ -1468,58 +1368,114 @@ static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb) u16 hdr_off; u32 *pkt_hdr; - /* This check is no longer done by usbnet */ - if (skb->len < dev->net->hard_header_len) + /* At the end of the SKB, there's a header telling us how many packets + * are bundled into this buffer and where we can find an array of + * per-packet metadata (which contains elements encoded into u16). + */ + + /* SKB contents for current firmware: + * <packet 1> <padding> + * ... + * <packet N> <padding> + * <per-packet metadata entry 1> <dummy header> + * ... + * <per-packet metadata entry N> <dummy header> + * <padding2> <rx_hdr> + * + * where: + * <packet N> contains pkt_len bytes: + * 2 bytes of IP alignment pseudo header + * packet received + * <per-packet metadata entry N> contains 4 bytes: + * pkt_len and fields AX_RXHDR_* + * <padding> 0-7 bytes to terminate at + * 8 bytes boundary (64-bit). + * <padding2> 4 bytes to make rx_hdr terminate at + * 8 bytes boundary (64-bit) + * <dummy-header> contains 4 bytes: + * pkt_len=0 and AX_RXHDR_DROP_ERR + * <rx-hdr> contains 4 bytes: + * pkt_cnt and hdr_off (offset of + * <per-packet metadata entry 1>) + * + * pkt_cnt is number of entrys in the per-packet metadata. + * In current firmware there is 2 entrys per packet. + * The first points to the packet and the + * second is a dummy header. + * This was done probably to align fields in 64-bit and + * maintain compatibility with old firmware. + * This code assumes that <dummy header> and <padding2> are + * optional. + */ + + if (skb->len < 4) return 0; - skb_trim(skb, skb->len - 4); rx_hdr = get_unaligned_le32(skb_tail_pointer(skb)); - pkt_cnt = (u16)rx_hdr; hdr_off = (u16)(rx_hdr >> 16); + + if (pkt_cnt == 0) + return 0; + + /* Make sure that the bounds of the metadata array are inside the SKB + * (and in front of the counter at the end). + */ + if (pkt_cnt * 4 + hdr_off > skb->len) + return 0; pkt_hdr = (u32 *)(skb->data + hdr_off); - while (pkt_cnt--) { + /* Packets must not overlap the metadata array */ + skb_trim(skb, hdr_off); + + for (; pkt_cnt > 0; pkt_cnt--, pkt_hdr++) { + u16 pkt_len_plus_padd; u16 pkt_len; le32_to_cpus(pkt_hdr); pkt_len = (*pkt_hdr >> 16) & 0x1fff; + pkt_len_plus_padd = (pkt_len + 7) & 0xfff8; + + /* Skip dummy header used for alignment + */ + if (pkt_len == 0) + continue; + + if (pkt_len_plus_padd > skb->len) + return 0; /* Check CRC or runt packet */ - if ((*pkt_hdr & AX_RXHDR_CRC_ERR) || - (*pkt_hdr & AX_RXHDR_DROP_ERR)) { - skb_pull(skb, (pkt_len + 7) & 0xFFF8); - pkt_hdr++; + if ((*pkt_hdr & (AX_RXHDR_CRC_ERR | AX_RXHDR_DROP_ERR)) || + pkt_len < 2 + ETH_HLEN) { + dev->net->stats.rx_errors++; + skb_pull(skb, pkt_len_plus_padd); continue; } - if (pkt_cnt == 0) { - skb->len = pkt_len; + /* last packet */ + if (pkt_len_plus_padd == skb->len) { + skb_trim(skb, pkt_len); + /* Skip IP alignment pseudo header */ skb_pull(skb, 2); - skb_set_tail_pointer(skb, skb->len); - skb->truesize = pkt_len + sizeof(struct sk_buff); + ax88179_rx_checksum(skb, pkt_hdr); return 1; } - ax_skb = skb_clone(skb, GFP_ATOMIC); - if (ax_skb) { - ax_skb->len = pkt_len; - /* Skip IP alignment pseudo header */ - skb_pull(ax_skb, 2); - skb_set_tail_pointer(ax_skb, ax_skb->len); - ax_skb->truesize = pkt_len + sizeof(struct sk_buff); - ax88179_rx_checksum(ax_skb, pkt_hdr); - usbnet_skb_return(dev, ax_skb); - } else { + ax_skb = netdev_alloc_skb_ip_align(dev->net, pkt_len); + if (!ax_skb) return 0; - } + skb_put(ax_skb, pkt_len); + memcpy(ax_skb->data, skb->data + 2, pkt_len); + + ax88179_rx_checksum(ax_skb, pkt_hdr); + usbnet_skb_return(dev, ax_skb); - skb_pull(skb, (pkt_len + 7) & 0xFFF8); - pkt_hdr++; + skb_pull(skb, pkt_len_plus_padd); } - return 1; + + return 0; } static struct sk_buff * @@ -1557,7 +1513,7 @@ ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) static int ax88179_link_reset(struct usbnet *dev) { - struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data; + struct ax88179_data *ax179_data = dev->driver_priv; u8 tmp[5], link_sts; u16 mode, tmp16, delay = HZ / 10; u32 tmp32 = 0x40000000; @@ -1587,6 +1543,7 @@ static int ax88179_link_reset(struct usbnet *dev) GMII_PHY_PHYSR, 2, &tmp16); if (!(tmp16 & GMII_PHY_PHYSR_LINK)) { + netdev_info(dev->net, "ax88179 - Link status is: 0\n"); return 0; } else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) { mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ; @@ -1624,6 +1581,8 @@ static int ax88179_link_reset(struct usbnet *dev) netif_carrier_on(dev->net); + netdev_info(dev->net, "ax88179 - Link status is: 1\n"); + return 0; } @@ -1632,8 +1591,8 @@ static int ax88179_reset(struct usbnet *dev) u8 buf[5]; u16 *tmp16; u8 *tmp; - struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data; - struct ethtool_eee eee_data; + struct ax88179_data *ax179_data = dev->driver_priv; + struct ethtool_keee eee_data; tmp16 = (u16 *)buf; tmp = (u8 *)buf; @@ -1644,17 +1603,18 @@ static int ax88179_reset(struct usbnet *dev) *tmp16 = AX_PHYPWR_RSTCTL_IPRL; ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); - msleep(200); + msleep(500); *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS; ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp); - msleep(100); + msleep(200); /* Ethernet PHY Auto Detach*/ - ax88179_auto_detach(dev, 0); + ax88179_auto_detach(dev); /* Read MAC address from DTB or asix chip */ ax88179_get_mac_addr(dev); + memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN); /* RX bulk configuration */ memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5); @@ -1669,12 +1629,6 @@ static int ax88179_reset(struct usbnet *dev) ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH, 1, 1, tmp); - dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | - NETIF_F_RXCSUM; - - dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | - NETIF_F_RXCSUM; - /* Enable checksum offload */ *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP | AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6; @@ -1700,6 +1654,12 @@ static int ax88179_reset(struct usbnet *dev) ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, tmp16); + /* Check if WoL is supported */ + ax179_data->wol_supported = 0; + if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, + 1, 1, &tmp) > 0) + ax179_data->wol_supported = WAKE_MAGIC | WAKE_PHY; + ax88179_led_setting(dev); ax179_data->eee_enabled = 0; @@ -1708,7 +1668,7 @@ static int ax88179_reset(struct usbnet *dev) ax88179_disable_eee(dev); ax88179_ethtool_get_eee(dev, &eee_data); - eee_data.advertised = 0; + linkmode_zero(eee_data.advertised); ax88179_ethtool_set_eee(dev, &eee_data); /* Restart autoneg */ @@ -1719,6 +1679,27 @@ static int ax88179_reset(struct usbnet *dev) return 0; } +static int ax88179_net_reset(struct usbnet *dev) +{ + u16 tmp16; + + ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID, GMII_PHY_PHYSR, + 2, &tmp16); + if (tmp16) { + ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, + 2, 2, &tmp16); + if (!(tmp16 & AX_MEDIUM_RECEIVE_EN)) { + tmp16 |= AX_MEDIUM_RECEIVE_EN; + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, + 2, 2, &tmp16); + } + } else { + ax88179_reset(dev); + } + + return 0; +} + static int ax88179_stop(struct usbnet *dev) { u16 tmp16; @@ -1738,7 +1719,7 @@ static const struct driver_info ax88179_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1751,7 +1732,7 @@ static const struct driver_info ax88178a_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1764,7 +1745,7 @@ static const struct driver_info cypress_GX3_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1777,7 +1758,7 @@ static const struct driver_info dlink_dub1312_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1790,7 +1771,7 @@ static const struct driver_info sitecom_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1803,7 +1784,7 @@ static const struct driver_info samsung_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1816,7 +1797,7 @@ static const struct driver_info lenovo_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1829,7 +1810,7 @@ static const struct driver_info belkin_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1842,7 +1823,7 @@ static const struct driver_info toshiba_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, @@ -1855,54 +1836,105 @@ static const struct driver_info mct_info = { .unbind = ax88179_unbind, .status = ax88179_status, .link_reset = ax88179_link_reset, - .reset = ax88179_reset, + .reset = ax88179_net_reset, .stop = ax88179_stop, .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, }; +static const struct driver_info at_umc2000_info = { + .description = "AT-UMC2000 USB 3.0/USB 3.1 Gen 1 to Gigabit Ethernet Adapter", + .bind = ax88179_bind, + .unbind = ax88179_unbind, + .status = ax88179_status, + .link_reset = ax88179_link_reset, + .reset = ax88179_net_reset, + .stop = ax88179_stop, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = ax88179_rx_fixup, + .tx_fixup = ax88179_tx_fixup, +}; + +static const struct driver_info at_umc200_info = { + .description = "AT-UMC200 USB 3.0/USB 3.1 Gen 1 to Fast Ethernet Adapter", + .bind = ax88179_bind, + .unbind = ax88179_unbind, + .status = ax88179_status, + .link_reset = ax88179_link_reset, + .reset = ax88179_net_reset, + .stop = ax88179_stop, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = ax88179_rx_fixup, + .tx_fixup = ax88179_tx_fixup, +}; + +static const struct driver_info at_umc2000sp_info = { + .description = "AT-UMC2000/SP USB 3.0/USB 3.1 Gen 1 to Gigabit Ethernet Adapter", + .bind = ax88179_bind, + .unbind = ax88179_unbind, + .status = ax88179_status, + .link_reset = ax88179_link_reset, + .reset = ax88179_net_reset, + .stop = ax88179_stop, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = ax88179_rx_fixup, + .tx_fixup = ax88179_tx_fixup, +}; + static const struct usb_device_id products[] = { { /* ASIX AX88179 10/100/1000 */ - USB_DEVICE(0x0b95, 0x1790), + USB_DEVICE_AND_INTERFACE_INFO(0x0b95, 0x1790, 0xff, 0xff, 0), .driver_info = (unsigned long)&ax88179_info, }, { /* ASIX AX88178A 10/100/1000 */ - USB_DEVICE(0x0b95, 0x178a), + USB_DEVICE_AND_INTERFACE_INFO(0x0b95, 0x178a, 0xff, 0xff, 0), .driver_info = (unsigned long)&ax88178a_info, }, { /* Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge Controller */ - USB_DEVICE(0x04b4, 0x3610), + USB_DEVICE_AND_INTERFACE_INFO(0x04b4, 0x3610, 0xff, 0xff, 0), .driver_info = (unsigned long)&cypress_GX3_info, }, { /* D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter */ - USB_DEVICE(0x2001, 0x4a00), + USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x4a00, 0xff, 0xff, 0), .driver_info = (unsigned long)&dlink_dub1312_info, }, { /* Sitecom USB 3.0 to Gigabit Adapter */ - USB_DEVICE(0x0df6, 0x0072), + USB_DEVICE_AND_INTERFACE_INFO(0x0df6, 0x0072, 0xff, 0xff, 0), .driver_info = (unsigned long)&sitecom_info, }, { /* Samsung USB Ethernet Adapter */ - USB_DEVICE(0x04e8, 0xa100), + USB_DEVICE_AND_INTERFACE_INFO(0x04e8, 0xa100, 0xff, 0xff, 0), .driver_info = (unsigned long)&samsung_info, }, { /* Lenovo OneLinkDock Gigabit LAN */ - USB_DEVICE(0x17ef, 0x304b), + USB_DEVICE_AND_INTERFACE_INFO(0x17ef, 0x304b, 0xff, 0xff, 0), .driver_info = (unsigned long)&lenovo_info, }, { /* Belkin B2B128 USB 3.0 Hub + Gigabit Ethernet Adapter */ - USB_DEVICE(0x050d, 0x0128), + USB_DEVICE_AND_INTERFACE_INFO(0x050d, 0x0128, 0xff, 0xff, 0), .driver_info = (unsigned long)&belkin_info, }, { /* Toshiba USB 3.0 GBit Ethernet Adapter */ - USB_DEVICE(0x0930, 0x0a13), + USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x0a13, 0xff, 0xff, 0), .driver_info = (unsigned long)&toshiba_info, }, { /* Magic Control Technology U3-A9003 USB 3.0 Gigabit Ethernet Adapter */ - USB_DEVICE(0x0711, 0x0179), + USB_DEVICE_AND_INTERFACE_INFO(0x0711, 0x0179, 0xff, 0xff, 0), .driver_info = (unsigned long)&mct_info, +}, { + /* Allied Telesis AT-UMC2000 USB 3.0/USB 3.1 Gen 1 to Gigabit Ethernet Adapter */ + USB_DEVICE_AND_INTERFACE_INFO(0x07c9, 0x000e, 0xff, 0xff, 0), + .driver_info = (unsigned long)&at_umc2000_info, +}, { + /* Allied Telesis AT-UMC200 USB 3.0/USB 3.1 Gen 1 to Fast Ethernet Adapter */ + USB_DEVICE_AND_INTERFACE_INFO(0x07c9, 0x000f, 0xff, 0xff, 0), + .driver_info = (unsigned long)&at_umc200_info, +}, { + /* Allied Telesis AT-UMC2000/SP USB 3.0/USB 3.1 Gen 1 to Gigabit Ethernet Adapter */ + USB_DEVICE_AND_INTERFACE_INFO(0x07c9, 0x0010, 0xff, 0xff, 0), + .driver_info = (unsigned long)&at_umc2000sp_info, }, { }, }; @@ -1915,7 +1947,7 @@ static struct usb_driver ax88179_178a_driver = { .suspend = ax88179_suspend, .resume = ax88179_resume, .reset_resume = ax88179_resume, - .disconnect = usbnet_disconnect, + .disconnect = ax88179_disconnect, .supports_autosuspend = 1, .disable_hub_initiated_lpm = 1, }; diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c index e7fe9c0f63a9..6759388692f8 100644 --- a/drivers/net/usb/catc.c +++ b/drivers/net/usb/catc.c @@ -8,13 +8,13 @@ * * Based on the work of * Donald Becker - * + * * Old chipset support added by Simon Evans <spse@secret.org.uk> 2002 * - adds support for Belkin F5U011 */ /* - * + * * Should you need to contact me, the author, you can do so either by * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic @@ -54,7 +54,7 @@ static const char driver_name[] = "catc"; /* * Some defines. - */ + */ #define STATS_UPDATE (HZ) /* Time between stats updates */ #define TX_TIMEOUT (5*HZ) /* Max time the queue can be stopped */ @@ -280,7 +280,7 @@ static void catc_irq_done(struct urb *urb) struct catc *catc = urb->context; u8 *data = urb->transfer_buffer; int status = urb->status; - unsigned int hasdata = 0, linksts = LinkNoChange; + unsigned int hasdata, linksts = LinkNoChange; int res; if (!catc->is_f5u011) { @@ -332,7 +332,7 @@ static void catc_irq_done(struct urb *urb) dev_err(&catc->usbdev->dev, "submit(rx_urb) status %d\n", res); } - } + } } resubmit: res = usb_submit_urb (urb, GFP_ATOMIC); @@ -538,7 +538,7 @@ static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value, unsigned long flags; spin_lock_irqsave(&catc->ctrl_lock, flags); - + q = catc->ctrl_queue + catc->ctrl_head; q->dir = dir; @@ -602,7 +602,7 @@ static void catc_stats_done(struct catc *catc, struct ctrl_queue *q) static void catc_stats_timer(struct timer_list *t) { - struct catc *catc = from_timer(catc, t, timer); + struct catc *catc = timer_container_of(catc, t, timer); int i; for (i = 0; i < 8; i++) @@ -639,7 +639,7 @@ static void catc_set_multicast_list(struct net_device *netdev) if (netdev->flags & IFF_PROMISC) { memset(catc->multicast, 0xff, 64); rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc; - } + } if (netdev->flags & IFF_ALLMULTI) { memset(catc->multicast, 0xff, 64); @@ -672,8 +672,8 @@ static void catc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { struct catc *catc = netdev_priv(dev); - strlcpy(info->driver, driver_name, sizeof(info->driver)); - strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); + strscpy(info->driver, driver_name, sizeof(info->driver)); + strscpy(info->version, DRIVER_VERSION, sizeof(info->version)); usb_make_path(catc->usbdev, info->bus_info, sizeof(info->bus_info)); } @@ -738,7 +738,7 @@ static int catc_stop(struct net_device *netdev) netif_stop_queue(netdev); if (!catc->is_f5u011) - del_timer_sync(&catc->timer); + timer_delete_sync(&catc->timer); usb_kill_urb(catc->rx_urb); usb_kill_urb(catc->tx_urb); @@ -781,7 +781,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id intf->altsetting->desc.bInterfaceNumber, 1)) { dev_err(dev, "Can't set altsetting 1.\n"); ret = -EIO; - goto fail_mem;; + goto fail_mem; } netdev = alloc_etherdev(sizeof(struct catc)); @@ -806,7 +806,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL); catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL); catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL); - if ((!catc->ctrl_urb) || (!catc->tx_urb) || + if ((!catc->ctrl_urb) || (!catc->tx_urb) || (!catc->rx_urb) || (!catc->irq_urb)) { dev_err(&intf->dev, "No free urbs available.\n"); ret = -ENOMEM; @@ -814,17 +814,17 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id } /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */ - if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && + if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && le16_to_cpu(usbdev->descriptor.idProduct) == 0xa && le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) { dev_dbg(dev, "Testing for f5u011\n"); - catc->is_f5u011 = 1; + catc->is_f5u011 = 1; atomic_set(&catc->recq_sz, 0); pktsz = RX_PKT_SZ; } else { pktsz = RX_MAX_BURST * (PKT_SZ + 2); } - + usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0), NULL, NULL, 0, catc_ctrl_done, catc); @@ -854,7 +854,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id *buf = 0x87654321; catc_write_mem(catc, 0xfa80, buf, 4); catc_read_mem(catc, 0x7a80, buf, 4); - + switch (*buf) { case 0x12345678: catc_set_reg(catc, TxBufCount, 8); @@ -873,32 +873,32 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id } kfree(buf); - + dev_dbg(dev, "Getting MAC from SEEROM.\n"); - + catc_get_mac(catc, macbuf); eth_hw_addr_set(netdev, macbuf); - + dev_dbg(dev, "Setting MAC into registers.\n"); - + for (i = 0; i < 6; i++) catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]); - + dev_dbg(dev, "Filling the multicast list.\n"); - + eth_broadcast_addr(broadcast); catc_multicast(broadcast, catc->multicast); catc_multicast(netdev->dev_addr, catc->multicast); catc_write_mem(catc, 0xfa80, catc->multicast, 64); - + dev_dbg(dev, "Clearing error counters.\n"); - + for (i = 0; i < 8; i++) catc_set_reg(catc, EthStats + i, 0); catc->last_stats = jiffies; - + dev_dbg(dev, "Enabling.\n"); - + catc_set_reg(catc, MaxBurst, RX_MAX_BURST); catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits); catc_set_reg(catc, LEDCtrl, LEDLink); @@ -908,7 +908,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id catc_reset(catc); catc_get_mac(catc, macbuf); eth_hw_addr_set(netdev, macbuf); - + dev_dbg(dev, "Setting RX Mode\n"); catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast; catc->rxmode[1] = 0; diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c index 359ea0d10e59..baa9b14b1644 100644 --- a/drivers/net/usb/cdc_eem.c +++ b/drivers/net/usb/cdc_eem.c @@ -218,7 +218,7 @@ static int eem_rx_fixup(struct usbnet *dev, struct sk_buff *skb) if (unlikely(!skb2)) goto next; skb_trim(skb2, len); - put_unaligned_le16(BIT(15) | (1 << 11) | len, + put_unaligned_le16(BIT(15) | BIT(11) | len, skb_push(skb2, 2)); eem_linkcmd(dev, skb2); break; diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index eb3817d70f2b..a032c1ded406 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -418,7 +418,8 @@ void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) case USB_CDC_NOTIFY_NETWORK_CONNECTION: netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", event->wValue ? "on" : "off"); - usbnet_link_change(dev, !!event->wValue, 0); + if (netif_carrier_ok(dev->net) != !!event->wValue) + usbnet_link_change(dev, !!event->wValue, 0); break; case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", @@ -479,7 +480,7 @@ static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) * device MAC address has been updated). Always set MAC address to that of the * device. */ -static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) { if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) return 1; @@ -489,6 +490,7 @@ static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) return 1; } +EXPORT_SYMBOL_GPL(usbnet_cdc_zte_rx_fixup); /* Ensure correct link state * @@ -583,6 +585,11 @@ static const struct usb_device_id products[] = { .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ .bInterfaceProtocol = USB_CDC_PROTO_NONE +#define ZAURUS_FAKE_INTERFACE \ + .bInterfaceClass = USB_CLASS_COMM, \ + .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \ + .bInterfaceProtocol = USB_CDC_PROTO_NONE + /* SA-1100 based Sharp Zaurus ("collie"), or compatible; * wire-incompatible with true CDC Ethernet implementations. * (And, it seems, needlessly so...) @@ -612,6 +619,13 @@ static const struct usb_device_id products[] = { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, + .idProduct = 0x8005, /* A-300 */ + ZAURUS_FAKE_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, .idProduct = 0x8006, /* B-500/SL-5600 */ ZAURUS_MASTER_INTERFACE, .driver_info = 0, @@ -619,11 +633,25 @@ static const struct usb_device_id products[] = { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, + .idProduct = 0x8006, /* B-500/SL-5600 */ + ZAURUS_FAKE_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, .idProduct = 0x8007, /* C-700 */ ZAURUS_MASTER_INTERFACE, .driver_info = 0, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8007, /* C-700 */ + ZAURUS_FAKE_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, .idProduct = 0x9031, /* C-750 C-760 */ @@ -640,6 +668,13 @@ static const struct usb_device_id products[] = { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, + .idProduct = 0x9032, /* SL-6000 */ + ZAURUS_FAKE_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, /* reported with some C860 units */ .idProduct = 0x9050, /* C-860 */ ZAURUS_MASTER_INTERFACE, @@ -734,13 +769,6 @@ static const struct usb_device_id products[] = { .driver_info = 0, }, -/* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ -{ - USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ { USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, @@ -748,64 +776,6 @@ static const struct usb_device_id products[] = { .driver_info = 0, }, -/* Samsung USB Ethernet Adapters */ -{ - USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -#if IS_ENABLED(CONFIG_USB_RTL8152) -/* Linksys USB3GIGV1 Ethernet Adapter */ -{ - USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, -#endif - -/* ThinkPad USB-C Dock (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* ThinkPad Thunderbolt 3 Dock Gen 2 (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3082, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - /* Lenovo Powered USB-C Travel Hub (4X90S92381, based on Realtek RTL8153) */ { USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x721e, USB_CLASS_COMM, @@ -813,44 +783,9 @@ static const struct usb_device_id products[] = { .driver_info = 0, }, -/* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* Microsoft Surface 2 dock (based on Realtek RTL8152) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153B) */ -{ - USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x0927, USB_CLASS_COMM, - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, -}, - -/* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ +/* Lenovo ThinkPad Hybrid USB-C with USB-A Dock (40af0135eu, based on Realtek RTL8153) */ { - USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM, + USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa359, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, }, @@ -970,6 +905,18 @@ static const struct usb_device_id products[] = { USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info, }, { + /* U-blox LARA-R6 01B */ + USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1313, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_info, +}, { + /* U-blox LARA-L6 */ + USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1343, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_info, +}, { /* Cinterion PLS8 modem by GEMALTO */ USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, @@ -982,6 +929,12 @@ static const struct usb_device_id products[] = { USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info, }, { + /* Cinterion PLS62-W modem by GEMALTO/THALES */ + USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x005b, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_info, +}, { /* Cinterion PLS83/PLS63 modem by GEMALTO/THALES */ USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0069, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 82bb5ed94c48..dbf01210b0e7 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -21,6 +21,7 @@ #include <net/ipv6.h> #include <net/addrconf.h> #include <net/ipv6_stubs.h> +#include <net/ndisc.h> /* alternative VLAN for IP session 0 if not untagged */ #define MBIM_IPS0_VID 4094 @@ -338,7 +339,7 @@ static void do_neigh_solicit(struct usbnet *dev, u8 *buf, u16 tci) in6_dev = in6_dev_get(netdev); if (!in6_dev) goto out; - is_router = !!in6_dev->cnf.forwarding; + is_router = !!READ_ONCE(in6_dev->cnf.forwarding); in6_dev_put(in6_dev); /* ipv6_stub != NULL if in6_dev_get returned an inet6_dev */ @@ -659,6 +660,16 @@ static const struct usb_device_id mbim_devs[] = { .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle, }, + /* Telit FN990A */ + { USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x1071, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle, + }, + + /* Telit FE990A */ + { USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x1081, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle, + }, + /* default entry */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_mbim_info_zlp, diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index e303b522efb5..5d123df0a866 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -43,6 +43,7 @@ #include <linux/ctype.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> +#include <linux/kstrtox.h> #include <linux/workqueue.h> #include <linux/mii.h> #include <linux/crc32.h> @@ -180,9 +181,12 @@ static u32 cdc_ncm_check_tx_max(struct usbnet *dev, u32 new_tx) else min = ctx->max_datagram_size + ctx->max_ndp_size + sizeof(struct usb_cdc_ncm_nth32); - max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_TX, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)); - if (max == 0) + if (le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize) == 0) max = CDC_NCM_NTB_MAX_SIZE_TX; /* dwNtbOutMaxSize not set */ + else + max = clamp_t(u32, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize), + USB_CDC_NCM_NTB_MIN_OUT_SIZE, + CDC_NCM_NTB_MAX_SIZE_TX); /* some devices set dwNtbOutMaxSize too low for the above default */ min = min(min, max); @@ -318,7 +322,7 @@ static ssize_t ndp_to_end_store(struct device *d, struct device_attribute *attr struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; bool enable; - if (strtobool(buf, &enable)) + if (kstrtobool(buf, &enable)) return -EINVAL; /* no change? */ @@ -441,7 +445,7 @@ static void cdc_ncm_update_rxtx_max(struct usbnet *dev, u32 new_rx, u32 new_tx) * .bind which is called before usbnet sets up dev->maxpacket */ if (val != le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize) && - val % usb_maxpacket(dev->udev, dev->out, 1) == 0) + val % usb_maxpacket(dev->udev, dev->out) == 0) val++; /* we might need to flush any pending tx buffers if running */ @@ -465,7 +469,7 @@ static void cdc_ncm_update_rxtx_max(struct usbnet *dev, u32 new_rx, u32 new_tx) usbnet_update_max_qlen(dev); /* never pad more than 3 full USB packets per transfer */ - ctx->min_tx_pkt = clamp_t(u16, ctx->tx_max - 3 * usb_maxpacket(dev->udev, dev->out, 1), + ctx->min_tx_pkt = clamp_t(u16, ctx->tx_max - 3 * usb_maxpacket(dev->udev, dev->out), CDC_NCM_MIN_TX_PKT, ctx->tx_max); } @@ -794,7 +798,7 @@ int cdc_ncm_change_mtu(struct net_device *net, int new_mtu) { struct usbnet *dev = netdev_priv(net); - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); cdc_ncm_set_dgram_size(dev, new_mtu + cdc_ncm_eth_hlen(dev)); return 0; @@ -829,8 +833,7 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_ ctx->dev = dev; - hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - ctx->tx_timer.function = &cdc_ncm_tx_timer_cb; + hrtimer_setup(&ctx->tx_timer, &cdc_ncm_tx_timer_cb, CLOCK_MONOTONIC, HRTIMER_MODE_REL); tasklet_setup(&ctx->bh, cdc_ncm_txpath_bh); atomic_set(&ctx->stop, 0); spin_lock_init(&ctx->mtx); @@ -889,6 +892,10 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_ } } + if (ctx->func_desc) + ctx->filtering_supported = !!(ctx->func_desc->bmNetworkCapabilities + & USB_CDC_NCM_NCAP_ETH_FILTER); + iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber; /* Device-specific flags */ @@ -929,7 +936,8 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_ cdc_ncm_find_endpoints(dev, ctx->data); cdc_ncm_find_endpoints(dev, ctx->control); - if (!dev->in || !dev->out || !dev->status) { + if (!dev->in || !dev->out || + (!dev->status && dev->driver_info->flags & FLAG_LINK_INTR)) { dev_dbg(&intf->dev, "failed to collect endpoints\n"); goto error2; } @@ -1243,6 +1251,9 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign) * further. */ if (skb_out == NULL) { + /* If even the smallest allocation fails, abort. */ + if (ctx->tx_curr_size == USB_CDC_NCM_NTB_MIN_OUT_SIZE) + goto alloc_failed; ctx->tx_low_mem_max_cnt = min(ctx->tx_low_mem_max_cnt + 1, (unsigned)CDC_NCM_LOW_MEM_MAX_CNT); ctx->tx_low_mem_val = ctx->tx_low_mem_max_cnt; @@ -1261,13 +1272,8 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign) skb_out = alloc_skb(ctx->tx_curr_size, GFP_ATOMIC); /* No allocation possible so we will abort */ - if (skb_out == NULL) { - if (skb != NULL) { - dev_kfree_skb_any(skb); - dev->net->stats.tx_dropped++; - } - goto exit_no_skb; - } + if (!skb_out) + goto alloc_failed; ctx->tx_low_mem_val--; } if (ctx->is_ndp16) { @@ -1460,6 +1466,11 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign) return skb_out; +alloc_failed: + if (skb) { + dev_kfree_skb_any(skb); + dev->net->stats.tx_dropped++; + } exit_no_skb: /* Start timer, if there is a remaining non-empty skb */ if (ctx->tx_curr_skb != NULL && n > 0) @@ -1492,19 +1503,19 @@ static void cdc_ncm_txpath_bh(struct tasklet_struct *t) struct cdc_ncm_ctx *ctx = from_tasklet(ctx, t, bh); struct usbnet *dev = ctx->dev; - spin_lock_bh(&ctx->mtx); + spin_lock(&ctx->mtx); if (ctx->tx_timer_pending != 0) { ctx->tx_timer_pending--; cdc_ncm_tx_timeout_start(ctx); - spin_unlock_bh(&ctx->mtx); + spin_unlock(&ctx->mtx); } else if (dev->net != NULL) { ctx->tx_reason_timeout++; /* count reason for transmitting */ - spin_unlock_bh(&ctx->mtx); + spin_unlock(&ctx->mtx); netif_tx_lock_bh(dev->net); usbnet_start_xmit(NULL, dev->net); netif_tx_unlock_bh(dev->net); } else { - spin_unlock_bh(&ctx->mtx); + spin_unlock(&ctx->mtx); } } @@ -1715,10 +1726,10 @@ int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) { struct sk_buff *skb; struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; - int len; + unsigned int len; int nframes; int x; - int offset; + unsigned int offset; union { struct usb_cdc_ncm_ndp16 *ndp16; struct usb_cdc_ncm_ndp32 *ndp32; @@ -1790,8 +1801,8 @@ next_ndp: break; } - /* sanity checking */ - if (((offset + len) > skb_in->len) || + /* sanity checking - watch out for integer wrap*/ + if ((offset > skb_in->len) || (len > skb_in->len - offset) || (len > ctx->rx_max) || (len < ETH_HLEN)) { netif_dbg(dev, rx_err, dev->net, "invalid frame detected (ignored) offset[%u]=%u, length=%u, skb=%p\n", @@ -1891,8 +1902,16 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb) } } +static void cdc_ncm_update_filter(struct usbnet *dev) +{ + struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; + + if (ctx->filtering_supported) + usbnet_cdc_update_filter(dev); +} + static const struct driver_info cdc_ncm_info = { - .description = "CDC NCM", + .description = "CDC NCM (NO ZLP)", .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_LINK_INTR | FLAG_ETHER, .bind = cdc_ncm_bind, @@ -1901,6 +1920,48 @@ static const struct driver_info cdc_ncm_info = { .status = cdc_ncm_status, .rx_fixup = cdc_ncm_rx_fixup, .tx_fixup = cdc_ncm_tx_fixup, + .set_rx_mode = cdc_ncm_update_filter, +}; + +/* Same as cdc_ncm_info, but with FLAG_SEND_ZLP */ +static const struct driver_info cdc_ncm_zlp_info = { + .description = "CDC NCM (SEND ZLP)", + .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET + | FLAG_LINK_INTR | FLAG_ETHER | FLAG_SEND_ZLP, + .bind = cdc_ncm_bind, + .unbind = cdc_ncm_unbind, + .manage_power = usbnet_manage_power, + .status = cdc_ncm_status, + .rx_fixup = cdc_ncm_rx_fixup, + .tx_fixup = cdc_ncm_tx_fixup, + .set_rx_mode = cdc_ncm_update_filter, +}; + +/* Same as cdc_ncm_info, but with FLAG_SEND_ZLP */ +static const struct driver_info apple_tethering_interface_info = { + .description = "CDC NCM (Apple Tethering)", + .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET + | FLAG_LINK_INTR | FLAG_ETHER | FLAG_SEND_ZLP, + .bind = cdc_ncm_bind, + .unbind = cdc_ncm_unbind, + .manage_power = usbnet_manage_power, + .status = cdc_ncm_status, + .rx_fixup = cdc_ncm_rx_fixup, + .tx_fixup = cdc_ncm_tx_fixup, + .set_rx_mode = usbnet_cdc_update_filter, +}; + +/* Same as apple_tethering_interface_info, but without FLAG_LINK_INTR */ +static const struct driver_info apple_private_interface_info = { + .description = "CDC NCM (Apple Private)", + .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET + | FLAG_ETHER | FLAG_SEND_ZLP, + .bind = cdc_ncm_bind, + .unbind = cdc_ncm_unbind, + .manage_power = usbnet_manage_power, + .status = cdc_ncm_status, + .rx_fixup = cdc_ncm_rx_fixup, + .tx_fixup = cdc_ncm_tx_fixup, .set_rx_mode = usbnet_cdc_update_filter, }; @@ -1915,7 +1976,7 @@ static const struct driver_info wwan_info = { .status = cdc_ncm_status, .rx_fixup = cdc_ncm_rx_fixup, .tx_fixup = cdc_ncm_tx_fixup, - .set_rx_mode = usbnet_cdc_update_filter, + .set_rx_mode = cdc_ncm_update_filter, }; /* Same as wwan_info, but with FLAG_NOARP */ @@ -1929,10 +1990,26 @@ static const struct driver_info wwan_noarp_info = { .status = cdc_ncm_status, .rx_fixup = cdc_ncm_rx_fixup, .tx_fixup = cdc_ncm_tx_fixup, - .set_rx_mode = usbnet_cdc_update_filter, + .set_rx_mode = cdc_ncm_update_filter, }; static const struct usb_device_id cdc_devs[] = { + /* iPhone */ + { USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x12a8, 2), + .driver_info = (unsigned long)&apple_tethering_interface_info, + }, + { USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x12a8, 4), + .driver_info = (unsigned long)&apple_private_interface_info, + }, + + /* iPad */ + { USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x12ab, 2), + .driver_info = (unsigned long)&apple_tethering_interface_info, + }, + { USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x12ab, 4), + .driver_info = (unsigned long)&apple_private_interface_info, + }, + /* Ericsson MBM devices like F5521gw */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_VENDOR, @@ -2010,6 +2087,23 @@ static const struct usb_device_id cdc_devs[] = { .driver_info = (unsigned long)&wwan_info, }, + /* Intel modem (label from OEM reads Fibocom L850-GL) */ + { USB_DEVICE_AND_INTERFACE_INFO(0x8087, 0x095a, + USB_CLASS_COMM, + USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_info, + }, + + /* DisplayLink docking stations */ + { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_VENDOR, + .idVendor = 0x17e9, + .bInterfaceClass = USB_CLASS_COMM, + .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM, + .bInterfaceProtocol = USB_CDC_PROTO_NONE, + .driver_info = (unsigned long)&cdc_ncm_zlp_info, + }, + /* Generic CDC-NCM devices */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), diff --git a/drivers/net/usb/cdc_subset.c b/drivers/net/usb/cdc_subset.c index 32637df0f4cc..f4a44f05c6ab 100644 --- a/drivers/net/usb/cdc_subset.c +++ b/drivers/net/usb/cdc_subset.c @@ -120,7 +120,7 @@ static const struct driver_info an2720_info = { #endif /* CONFIG_USB_AN2720 */ - + #ifdef CONFIG_USB_BELKIN #define HAVE_HARDWARE @@ -140,7 +140,7 @@ static const struct driver_info belkin_info = { #endif /* CONFIG_USB_BELKIN */ - + #ifdef CONFIG_USB_EPSON2888 #define HAVE_HARDWARE @@ -167,7 +167,7 @@ static const struct driver_info epson2888_info = { #endif /* CONFIG_USB_EPSON2888 */ - + /*------------------------------------------------------------------------- * * info from Jonathan McDowell <noodles@earth.li> @@ -181,7 +181,7 @@ static const struct driver_info kc2190_info = { }; #endif /* CONFIG_USB_KC2190 */ - + #ifdef CONFIG_USB_ARMLINUX #define HAVE_HARDWARE @@ -222,7 +222,7 @@ static const struct driver_info blob_info = { #endif /* CONFIG_USB_ARMLINUX */ - + /*-------------------------------------------------------------------------*/ #ifndef HAVE_HARDWARE diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c index f69d9b902da0..a206ffa76f1b 100644 --- a/drivers/net/usb/ch9200.c +++ b/drivers/net/usb/ch9200.c @@ -178,6 +178,7 @@ static int ch9200_mdio_read(struct net_device *netdev, int phy_id, int loc) { struct usbnet *dev = netdev_priv(netdev); unsigned char buff[2]; + int ret; netdev_dbg(netdev, "%s phy_id:%02x loc:%02x\n", __func__, phy_id, loc); @@ -185,8 +186,10 @@ static int ch9200_mdio_read(struct net_device *netdev, int phy_id, int loc) if (phy_id != 0) return -ENODEV; - control_read(dev, REQUEST_READ, 0, loc * 2, buff, 0x02, - CONTROL_TIMEOUT_MS); + ret = control_read(dev, REQUEST_READ, 0, loc * 2, buff, 0x02, + CONTROL_TIMEOUT_MS); + if (ret < 0) + return ret; return (buff[0] | buff[1] << 8); } diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index 48d7d278631e..8b6d6a1b3c2e 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -222,13 +222,18 @@ static int dm9601_mdio_read(struct net_device *netdev, int phy_id, int loc) struct usbnet *dev = netdev_priv(netdev); __le16 res; + int err; if (phy_id) { netdev_dbg(dev->net, "Only internal phy supported\n"); return 0; } - dm_read_shared_word(dev, 1, loc, &res); + err = dm_read_shared_word(dev, 1, loc, &res); + if (err < 0) { + netdev_err(dev->net, "MDIO read error: %d\n", err); + return 0; + } netdev_dbg(dev->net, "dm9601_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", diff --git a/drivers/net/usb/gl620a.c b/drivers/net/usb/gl620a.c index 13a9a83b8538..0bfa37c14059 100644 --- a/drivers/net/usb/gl620a.c +++ b/drivers/net/usb/gl620a.c @@ -56,7 +56,7 @@ struct gl_packet { __le32 packet_length; - char packet_data [1]; + char packet_data[]; }; struct gl_header { @@ -179,9 +179,7 @@ static int genelink_bind(struct usbnet *dev, struct usb_interface *intf) { dev->hard_mtu = GL_RCV_BUF_SIZE; dev->net->hard_header_len += 4; - dev->in = usb_rcvbulkpipe(dev->udev, dev->driver_info->in); - dev->out = usb_sndbulkpipe(dev->udev, dev->driver_info->out); - return 0; + return usbnet_get_endpoints(dev, intf); } static const struct driver_info genelink_info = { diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index f97813a4e8d1..1aeb36119d3f 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -363,7 +363,6 @@ static int disable_net; /* driver info */ static const char driver_name[] = "hso"; static const char tty_filename[] = "ttyHS"; -static const char *version = __FILE__ ": " MOD_AUTHOR; /* the usb driver itself (registered in hso_init) */ static struct usb_driver hso_driver; /* serial structures */ @@ -1322,11 +1321,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp) } /* close the requested serial port */ -static int hso_serial_write(struct tty_struct *tty, const unsigned char *buf, - int count) +static ssize_t hso_serial_write(struct tty_struct *tty, const u8 *buf, + size_t count) { struct hso_serial *serial = tty->driver_data; - int space, tx_bytes; unsigned long flags; /* sanity check */ @@ -1337,21 +1335,16 @@ static int hso_serial_write(struct tty_struct *tty, const unsigned char *buf, spin_lock_irqsave(&serial->serial_lock, flags); - space = serial->tx_data_length - serial->tx_buffer_count; - tx_bytes = (count < space) ? count : space; + count = min_t(size_t, serial->tx_data_length - serial->tx_buffer_count, + count); + memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, count); + serial->tx_buffer_count += count; - if (!tx_bytes) - goto out; - - memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, tx_bytes); - serial->tx_buffer_count += tx_bytes; - -out: spin_unlock_irqrestore(&serial->serial_lock, flags); hso_kick_transmit(serial); /* done */ - return tx_bytes; + return count; } /* how much room is there for writing */ @@ -1380,7 +1373,8 @@ static void hso_serial_cleanup(struct tty_struct *tty) } /* setup the term */ -static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old) +static void hso_serial_set_termios(struct tty_struct *tty, + const struct ktermios *old) { struct hso_serial *serial = tty->driver_data; unsigned long flags; @@ -2319,7 +2313,7 @@ static struct hso_device *hso_create_device(struct usb_interface *intf, { struct hso_device *hso_dev; - hso_dev = kzalloc(sizeof(*hso_dev), GFP_ATOMIC); + hso_dev = kzalloc(sizeof(*hso_dev), GFP_KERNEL); if (!hso_dev) return NULL; @@ -2471,7 +2465,7 @@ static void hso_create_rfkill(struct hso_device *hso_dev, } } -static struct device_type hso_type = { +static const struct device_type hso_type = { .name = "wwan", }; @@ -3233,16 +3227,8 @@ static struct usb_driver hso_driver = { static int __init hso_init(void) { - int i; int result; - /* put it in the log */ - pr_info("%s\n", version); - - /* Initialise the serial table semaphore and table */ - for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) - serial_table[i] = NULL; - /* allocate our driver using the proper amount of supported minors */ tty_drv = tty_alloc_driver(HSO_SERIAL_TTY_MINORS, TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV); @@ -3290,8 +3276,6 @@ err_free_tty: static void __exit hso_exit(void) { - pr_info("unloaded\n"); - tty_unregister_driver(tty_drv); /* deregister the usb driver */ usb_deregister(&hso_driver); diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c index cd33955df0b6..a19789b57190 100644 --- a/drivers/net/usb/ipheth.c +++ b/drivers/net/usb/ipheth.c @@ -52,6 +52,7 @@ #include <linux/ethtool.h> #include <linux/usb.h> #include <linux/workqueue.h> +#include <linux/usb/cdc.h> #define USB_VENDOR_APPLE 0x05ac @@ -59,8 +60,23 @@ #define IPHETH_USBINTF_SUBCLASS 253 #define IPHETH_USBINTF_PROTO 1 -#define IPHETH_BUF_SIZE 1514 #define IPHETH_IP_ALIGN 2 /* padding at front of URB */ +/* On iOS devices, NCM headers in RX have a fixed size regardless of DPE count: + * - NTH16 (NCMH): 12 bytes, as per CDC NCM 1.0 spec + * - NDP16 (NCM0): 96 bytes, of which + * - NDP16 fixed header: 8 bytes + * - maximum of 22 DPEs (21 datagrams + trailer), 4 bytes each + */ +#define IPHETH_NDP16_MAX_DPE 22 +#define IPHETH_NDP16_HEADER_SIZE (sizeof(struct usb_cdc_ncm_ndp16) + \ + IPHETH_NDP16_MAX_DPE * \ + sizeof(struct usb_cdc_ncm_dpe16)) +#define IPHETH_NCM_HEADER_SIZE (sizeof(struct usb_cdc_ncm_nth16) + \ + IPHETH_NDP16_HEADER_SIZE) +#define IPHETH_TX_BUF_SIZE ETH_FRAME_LEN +#define IPHETH_RX_BUF_SIZE_LEGACY (IPHETH_IP_ALIGN + ETH_FRAME_LEN) +#define IPHETH_RX_BUF_SIZE_NCM 65536 + #define IPHETH_TX_TIMEOUT (5 * HZ) #define IPHETH_INTFNUM 2 @@ -71,6 +87,7 @@ #define IPHETH_CTRL_TIMEOUT (5 * HZ) #define IPHETH_CMD_GET_MACADDR 0x00 +#define IPHETH_CMD_ENABLE_NCM 0x04 #define IPHETH_CMD_CARRIER_CHECK 0x45 #define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ) @@ -97,6 +114,8 @@ struct ipheth_device { u8 bulk_out; struct delayed_work carrier_work; bool confirmed_pairing; + int (*rcvbulk_callback)(struct urb *urb); + size_t rx_buf_len; }; static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags); @@ -116,12 +135,12 @@ static int ipheth_alloc_urbs(struct ipheth_device *iphone) if (rx_urb == NULL) goto free_tx_urb; - tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE, + tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_TX_BUF_SIZE, GFP_KERNEL, &tx_urb->transfer_dma); if (tx_buf == NULL) goto free_rx_urb; - rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE, + rx_buf = usb_alloc_coherent(iphone->udev, iphone->rx_buf_len, GFP_KERNEL, &rx_urb->transfer_dma); if (rx_buf == NULL) goto free_tx_buf; @@ -134,7 +153,7 @@ static int ipheth_alloc_urbs(struct ipheth_device *iphone) return 0; free_tx_buf: - usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, tx_buf, + usb_free_coherent(iphone->udev, IPHETH_TX_BUF_SIZE, tx_buf, tx_urb->transfer_dma); free_rx_urb: usb_free_urb(rx_urb); @@ -146,9 +165,9 @@ error_nomem: static void ipheth_free_urbs(struct ipheth_device *iphone) { - usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf, + usb_free_coherent(iphone->udev, iphone->rx_buf_len, iphone->rx_buf, iphone->rx_urb->transfer_dma); - usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf, + usb_free_coherent(iphone->udev, IPHETH_TX_BUF_SIZE, iphone->tx_buf, iphone->tx_urb->transfer_dma); usb_free_urb(iphone->rx_urb); usb_free_urb(iphone->tx_urb); @@ -160,15 +179,116 @@ static void ipheth_kill_urbs(struct ipheth_device *dev) usb_kill_urb(dev->rx_urb); } -static void ipheth_rcvbulk_callback(struct urb *urb) +static int ipheth_consume_skb(char *buf, int len, struct ipheth_device *dev) { - struct ipheth_device *dev; struct sk_buff *skb; - int status; + + skb = dev_alloc_skb(len); + if (!skb) { + dev->net->stats.rx_dropped++; + return -ENOMEM; + } + + skb_put_data(skb, buf, len); + skb->dev = dev->net; + skb->protocol = eth_type_trans(skb, dev->net); + + dev->net->stats.rx_packets++; + dev->net->stats.rx_bytes += len; + netif_rx(skb); + + return 0; +} + +static int ipheth_rcvbulk_callback_legacy(struct urb *urb) +{ + struct ipheth_device *dev; char *buf; int len; dev = urb->context; + + if (urb->actual_length <= IPHETH_IP_ALIGN) { + dev->net->stats.rx_length_errors++; + return -EINVAL; + } + len = urb->actual_length - IPHETH_IP_ALIGN; + buf = urb->transfer_buffer + IPHETH_IP_ALIGN; + + return ipheth_consume_skb(buf, len, dev); +} + +/* In "NCM mode", the iOS device encapsulates RX (phone->computer) traffic + * in NCM Transfer Blocks (similarly to CDC NCM). However, unlike reverse + * tethering (handled by the `cdc_ncm` driver), regular tethering is not + * compliant with the CDC NCM spec, as the device is missing the necessary + * descriptors, and TX (computer->phone) traffic is not encapsulated + * at all. Thus `ipheth` implements a very limited subset of the spec with + * the sole purpose of parsing RX URBs. + */ +static int ipheth_rcvbulk_callback_ncm(struct urb *urb) +{ + struct usb_cdc_ncm_nth16 *ncmh; + struct usb_cdc_ncm_ndp16 *ncm0; + struct usb_cdc_ncm_dpe16 *dpe; + struct ipheth_device *dev; + u16 dg_idx, dg_len; + int retval = -EINVAL; + char *buf; + + dev = urb->context; + + if (urb->actual_length < IPHETH_NCM_HEADER_SIZE) { + dev->net->stats.rx_length_errors++; + return retval; + } + + ncmh = urb->transfer_buffer; + if (ncmh->dwSignature != cpu_to_le32(USB_CDC_NCM_NTH16_SIGN) || + /* On iOS, NDP16 directly follows NTH16 */ + ncmh->wNdpIndex != cpu_to_le16(sizeof(struct usb_cdc_ncm_nth16))) + goto rx_error; + + ncm0 = urb->transfer_buffer + sizeof(struct usb_cdc_ncm_nth16); + if (ncm0->dwSignature != cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN)) + goto rx_error; + + dpe = ncm0->dpe16; + for (int dpe_i = 0; dpe_i < IPHETH_NDP16_MAX_DPE; ++dpe_i, ++dpe) { + dg_idx = le16_to_cpu(dpe->wDatagramIndex); + dg_len = le16_to_cpu(dpe->wDatagramLength); + + /* Null DPE must be present after last datagram pointer entry + * (3.3.1 USB CDC NCM spec v1.0) + */ + if (dg_idx == 0 && dg_len == 0) + return 0; + + if (dg_idx < IPHETH_NCM_HEADER_SIZE || + dg_idx >= urb->actual_length || + dg_len > urb->actual_length - dg_idx) { + dev->net->stats.rx_length_errors++; + return retval; + } + + buf = urb->transfer_buffer + dg_idx; + + retval = ipheth_consume_skb(buf, dg_len, dev); + if (retval != 0) + return retval; + } + +rx_error: + dev->net->stats.rx_errors++; + return retval; +} + +static void ipheth_rcvbulk_callback(struct urb *urb) +{ + struct ipheth_device *dev; + int retval, status; + + dev = urb->context; if (dev == NULL) return; @@ -187,29 +307,32 @@ static void ipheth_rcvbulk_callback(struct urb *urb) return; } - if (urb->actual_length <= IPHETH_IP_ALIGN) { - dev->net->stats.rx_length_errors++; - return; - } - len = urb->actual_length - IPHETH_IP_ALIGN; - buf = urb->transfer_buffer + IPHETH_IP_ALIGN; - - skb = dev_alloc_skb(len); - if (!skb) { - dev_err(&dev->intf->dev, "%s: dev_alloc_skb: -ENOMEM\n", - __func__); - dev->net->stats.rx_dropped++; - return; + /* iPhone may periodically send URBs with no payload + * on the "bulk in" endpoint. It is safe to ignore them. + */ + if (urb->actual_length == 0) + goto rx_submit; + + /* RX URBs starting with 0x00 0x01 do not encapsulate Ethernet frames, + * but rather are control frames. Their purpose is not documented, and + * they don't affect driver functionality, okay to drop them. + * There is usually just one 4-byte control frame as the very first + * URB received from the bulk IN endpoint. + */ + if (unlikely + (urb->actual_length == 4 && + ((char *)urb->transfer_buffer)[0] == 0 && + ((char *)urb->transfer_buffer)[1] == 1)) + goto rx_submit; + + retval = dev->rcvbulk_callback(urb); + if (retval != 0) { + dev_err(&dev->intf->dev, "%s: callback retval: %d\n", + __func__, retval); } - skb_put_data(skb, buf, len); - skb->dev = dev->net; - skb->protocol = eth_type_trans(skb, dev->net); - - dev->net->stats.rx_packets++; - dev->net->stats.rx_bytes += len; +rx_submit: dev->confirmed_pairing = true; - netif_rx(skb); ipheth_rx_submit(dev, GFP_ATOMIC); } @@ -253,13 +376,14 @@ static int ipheth_carrier_set(struct ipheth_device *dev) 0x02, /* index */ dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE, IPHETH_CTRL_TIMEOUT); - if (retval < 0) { + if (retval <= 0) { dev_err(&dev->intf->dev, "%s: usb_control_msg: %d\n", __func__, retval); return retval; } - if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON) { + if ((retval == 1 && dev->ctrl_buf[0] == IPHETH_CARRIER_ON) || + (retval >= 2 && dev->ctrl_buf[1] == IPHETH_CARRIER_ON)) { netif_carrier_on(dev->net); if (dev->tx_urb->status != -EINPROGRESS) netif_wake_queue(dev->net); @@ -310,6 +434,27 @@ static int ipheth_get_macaddr(struct ipheth_device *dev) return retval; } +static int ipheth_enable_ncm(struct ipheth_device *dev) +{ + struct usb_device *udev = dev->udev; + int retval; + + retval = usb_control_msg(udev, + usb_sndctrlpipe(udev, IPHETH_CTRL_ENDP), + IPHETH_CMD_ENABLE_NCM, /* request */ + 0x41, /* request type */ + 0x00, /* value */ + 0x02, /* index */ + NULL, + 0, + IPHETH_CTRL_TIMEOUT); + + dev_info(&dev->intf->dev, "%s: usb_control_msg: %d\n", + __func__, retval); + + return retval; +} + static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags) { struct usb_device *udev = dev->udev; @@ -317,7 +462,7 @@ static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags) usb_fill_bulk_urb(dev->rx_urb, udev, usb_rcvbulkpipe(udev, dev->bulk_in), - dev->rx_buf, IPHETH_BUF_SIZE, + dev->rx_buf, dev->rx_buf_len, ipheth_rcvbulk_callback, dev); dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; @@ -353,8 +498,8 @@ static int ipheth_close(struct net_device *net) { struct ipheth_device *dev = netdev_priv(net); - cancel_delayed_work_sync(&dev->carrier_work); netif_stop_queue(net); + cancel_delayed_work_sync(&dev->carrier_work); return 0; } @@ -365,7 +510,7 @@ static netdev_tx_t ipheth_tx(struct sk_buff *skb, struct net_device *net) int retval; /* Paranoid */ - if (skb->len > IPHETH_BUF_SIZE) { + if (skb->len > IPHETH_TX_BUF_SIZE) { WARN(1, "%s: skb too large: %d bytes\n", __func__, skb->len); dev->net->stats.tx_dropped++; dev_kfree_skb_any(skb); @@ -373,12 +518,10 @@ static netdev_tx_t ipheth_tx(struct sk_buff *skb, struct net_device *net) } memcpy(dev->tx_buf, skb->data, skb->len); - if (skb->len < IPHETH_BUF_SIZE) - memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len); usb_fill_bulk_urb(dev->tx_urb, udev, usb_sndbulkpipe(udev, dev->bulk_out), - dev->tx_buf, IPHETH_BUF_SIZE, + dev->tx_buf, skb->len, ipheth_sndbulk_callback, dev); dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; @@ -450,6 +593,8 @@ static int ipheth_probe(struct usb_interface *intf, dev->net = netdev; dev->intf = intf; dev->confirmed_pairing = false; + dev->rx_buf_len = IPHETH_RX_BUF_SIZE_LEGACY; + dev->rcvbulk_callback = ipheth_rcvbulk_callback_legacy; /* Set up endpoints */ hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM); if (hintf == NULL) { @@ -481,6 +626,12 @@ static int ipheth_probe(struct usb_interface *intf, if (retval) goto err_get_macaddr; + retval = ipheth_enable_ncm(dev); + if (!retval) { + dev->rx_buf_len = IPHETH_RX_BUF_SIZE_NCM; + dev->rcvbulk_callback = ipheth_rcvbulk_callback_ncm; + } + INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work); retval = ipheth_alloc_urbs(dev); @@ -510,8 +661,8 @@ err_register_netdev: ipheth_free_urbs(dev); err_alloc_urbs: err_get_macaddr: -err_alloc_ctrl_buf: kfree(dev->ctrl_buf); +err_alloc_ctrl_buf: err_endpoints: free_netdev(netdev); return retval; diff --git a/drivers/net/usb/kalmia.c b/drivers/net/usb/kalmia.c index 9f2b70ef39aa..613fc6910f14 100644 --- a/drivers/net/usb/kalmia.c +++ b/drivers/net/usb/kalmia.c @@ -65,8 +65,8 @@ kalmia_send_init_packet(struct usbnet *dev, u8 *init_msg, u8 init_msg_len, init_msg, init_msg_len, &act_len, KALMIA_USB_TIMEOUT); if (status != 0) { netdev_err(dev->net, - "Error sending init packet. Status %i, length %i\n", - status, act_len); + "Error sending init packet. Status %i\n", + status); return status; } else if (act_len != init_msg_len) { @@ -83,8 +83,8 @@ kalmia_send_init_packet(struct usbnet *dev, u8 *init_msg, u8 init_msg_len, if (status != 0) netdev_err(dev->net, - "Error receiving init result. Status %i, length %i\n", - status, act_len); + "Error receiving init result. Status %i\n", + status); else if (act_len != expected_len) netdev_err(dev->net, "Unexpected init result length: %i\n", act_len); diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c index 9b2bc1993ece..c9efb7df892e 100644 --- a/drivers/net/usb/kaweth.c +++ b/drivers/net/usb/kaweth.c @@ -221,7 +221,7 @@ struct kaweth_device dma_addr_t rxbufferhandle; __u8 *rx_buf; - + struct sk_buff *tx_skb; __u8 *firmware_buf; diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index b8e20a3f2b84..00397a807393 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -6,6 +6,7 @@ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> +#include <linux/phylink.h> #include <linux/usb.h> #include <linux/crc32.h> #include <linux/signal.h> @@ -19,13 +20,13 @@ #include <linux/mdio.h> #include <linux/phy.h> #include <net/ip6_checksum.h> +#include <net/selftests.h> #include <net/vxlan.h> #include <linux/interrupt.h> #include <linux/irqdomain.h> #include <linux/irq.h> #include <linux/irqchip/chained_irq.h> #include <linux/microchipphy.h> -#include <linux/phy_fixed.h> #include <linux/of_mdio.h> #include <linux/of_net.h> #include "lan78xx.h" @@ -92,8 +93,6 @@ WAKE_MCAST | WAKE_BCAST | \ WAKE_ARP | WAKE_MAGIC) -#define LAN78XX_NAPI_WEIGHT 64 - #define TX_URB_NUM 10 #define TX_SS_URB_NUM TX_URB_NUM #define TX_HS_URB_NUM TX_URB_NUM @@ -382,16 +381,11 @@ struct skb_data { /* skb->cb is one of these */ int num_of_packet; }; -struct usb_context { - struct usb_ctrlrequest req; - struct lan78xx_net *dev; -}; - #define EVENT_TX_HALT 0 #define EVENT_RX_HALT 1 #define EVENT_RX_MEMORY 2 #define EVENT_STS_SPLIT 3 -#define EVENT_LINK_RESET 4 +#define EVENT_PHY_INT_ACK 4 #define EVENT_RX_PAUSED 5 #define EVENT_DEV_WAKING 6 #define EVENT_DEV_ASLEEP 7 @@ -420,7 +414,6 @@ struct lan78xx_net { struct net_device *net; struct usb_device *udev; struct usb_interface *intf; - void *driver_priv; unsigned int tx_pend_data_len; size_t n_tx_urbs; @@ -446,7 +439,7 @@ struct lan78xx_net { struct usb_anchor deferred; struct mutex dev_mutex; /* serialise open/stop wrt suspend/resume */ - struct mutex phy_mutex; /* for phy access */ + struct mutex mdiobus_mutex; /* for MDIO bus access */ unsigned int pipe_in, pipe_out, pipe_intr; unsigned int bulk_in_delay; @@ -455,33 +448,25 @@ struct lan78xx_net { unsigned long flags; wait_queue_head_t *wait; - unsigned char suspend_count; unsigned int maxpacket; struct timer_list stat_monitor; unsigned long data[5]; - int link_on; - u8 mdix_ctrl; - u32 chipid; u32 chiprev; struct mii_bus *mdiobus; phy_interface_t interface; - int fc_autoneg; - u8 fc_request_control; - int delta; struct statstage stats; struct irq_domain_data domain_data; -}; -/* define external phy id */ -#define PHY_LAN8835 (0x0007C130) -#define PHY_KSZ9031RNX (0x00221620) + struct phylink *phylink; + struct phylink_config phylink_config; +}; /* use ethtool to change the level for any given device */ static int msg_level = -1; @@ -632,13 +617,13 @@ static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data) *data = *buf; } else if (net_ratelimit()) { netdev_warn(dev->net, - "Failed to read register index 0x%08x. ret = %d", - index, ret); + "Failed to read register index 0x%08x. ret = %pe", + index, ERR_PTR(ret)); } kfree(buf); - return ret; + return ret < 0 ? ret : 0; } static int lan78xx_write_reg(struct lan78xx_net *dev, u32 index, u32 data) @@ -663,13 +648,13 @@ static int lan78xx_write_reg(struct lan78xx_net *dev, u32 index, u32 data) if (unlikely(ret < 0) && net_ratelimit()) { netdev_warn(dev->net, - "Failed to write register index 0x%08x. ret = %d", - index, ret); + "Failed to write register index 0x%08x. ret = %pe", + index, ERR_PTR(ret)); } kfree(buf); - return ret; + return ret < 0 ? ret : 0; } static int lan78xx_update_reg(struct lan78xx_net *dev, u32 reg, u32 mask, @@ -685,11 +670,7 @@ static int lan78xx_update_reg(struct lan78xx_net *dev, u32 reg, u32 mask, buf &= ~mask; buf |= (mask & data); - ret = lan78xx_write_reg(dev, reg, buf); - if (ret < 0) - return ret; - - return 0; + return lan78xx_write_reg(dev, reg, buf); } static int lan78xx_read_stats(struct lan78xx_net *dev, @@ -819,8 +800,156 @@ static void lan78xx_update_stats(struct lan78xx_net *dev) usb_autopm_put_interface(dev->intf); } -/* Loop until the read is completed with timeout called with phy_mutex held */ -static int lan78xx_phy_wait_not_busy(struct lan78xx_net *dev) +static int lan78xx_start_hw(struct lan78xx_net *dev, u32 reg, u32 hw_enable) +{ + return lan78xx_update_reg(dev, reg, hw_enable, hw_enable); +} + +static int lan78xx_stop_hw(struct lan78xx_net *dev, u32 reg, u32 hw_enabled, + u32 hw_disabled) +{ + unsigned long timeout; + bool stopped = true; + int ret; + u32 buf; + + /* Stop the h/w block (if not already stopped) */ + + ret = lan78xx_read_reg(dev, reg, &buf); + if (ret < 0) + return ret; + + if (buf & hw_enabled) { + buf &= ~hw_enabled; + + ret = lan78xx_write_reg(dev, reg, buf); + if (ret < 0) + return ret; + + stopped = false; + timeout = jiffies + HW_DISABLE_TIMEOUT; + do { + ret = lan78xx_read_reg(dev, reg, &buf); + if (ret < 0) + return ret; + + if (buf & hw_disabled) + stopped = true; + else + msleep(HW_DISABLE_DELAY_MS); + } while (!stopped && !time_after(jiffies, timeout)); + } + + return stopped ? 0 : -ETIMEDOUT; +} + +static int lan78xx_flush_fifo(struct lan78xx_net *dev, u32 reg, u32 fifo_flush) +{ + return lan78xx_update_reg(dev, reg, fifo_flush, fifo_flush); +} + +static int lan78xx_start_tx_path(struct lan78xx_net *dev) +{ + int ret; + + netif_dbg(dev, drv, dev->net, "start tx path"); + + /* Start the MAC transmitter */ + + ret = lan78xx_start_hw(dev, MAC_TX, MAC_TX_TXEN_); + if (ret < 0) + return ret; + + /* Start the Tx FIFO */ + + ret = lan78xx_start_hw(dev, FCT_TX_CTL, FCT_TX_CTL_EN_); + if (ret < 0) + return ret; + + return 0; +} + +static int lan78xx_stop_tx_path(struct lan78xx_net *dev) +{ + int ret; + + netif_dbg(dev, drv, dev->net, "stop tx path"); + + /* Stop the Tx FIFO */ + + ret = lan78xx_stop_hw(dev, FCT_TX_CTL, FCT_TX_CTL_EN_, FCT_TX_CTL_DIS_); + if (ret < 0) + return ret; + + /* Stop the MAC transmitter */ + + ret = lan78xx_stop_hw(dev, MAC_TX, MAC_TX_TXEN_, MAC_TX_TXD_); + if (ret < 0) + return ret; + + return 0; +} + +/* The caller must ensure the Tx path is stopped before calling + * lan78xx_flush_tx_fifo(). + */ +static int lan78xx_flush_tx_fifo(struct lan78xx_net *dev) +{ + return lan78xx_flush_fifo(dev, FCT_TX_CTL, FCT_TX_CTL_RST_); +} + +static int lan78xx_start_rx_path(struct lan78xx_net *dev) +{ + int ret; + + netif_dbg(dev, drv, dev->net, "start rx path"); + + /* Start the Rx FIFO */ + + ret = lan78xx_start_hw(dev, FCT_RX_CTL, FCT_RX_CTL_EN_); + if (ret < 0) + return ret; + + /* Start the MAC receiver*/ + + ret = lan78xx_start_hw(dev, MAC_RX, MAC_RX_RXEN_); + if (ret < 0) + return ret; + + return 0; +} + +static int lan78xx_stop_rx_path(struct lan78xx_net *dev) +{ + int ret; + + netif_dbg(dev, drv, dev->net, "stop rx path"); + + /* Stop the MAC receiver */ + + ret = lan78xx_stop_hw(dev, MAC_RX, MAC_RX_RXEN_, MAC_RX_RXD_); + if (ret < 0) + return ret; + + /* Stop the Rx FIFO */ + + ret = lan78xx_stop_hw(dev, FCT_RX_CTL, FCT_RX_CTL_EN_, FCT_RX_CTL_DIS_); + if (ret < 0) + return ret; + + return 0; +} + +/* The caller must ensure the Rx path is stopped before calling + * lan78xx_flush_rx_fifo(). + */ +static int lan78xx_flush_rx_fifo(struct lan78xx_net *dev) +{ + return lan78xx_flush_fifo(dev, FCT_RX_CTL, FCT_RX_CTL_RST_); +} + +/* Loop until the read is completed with timeout called with mdiobus_mutex held */ +static int lan78xx_mdiobus_wait_not_busy(struct lan78xx_net *dev) { unsigned long start_time = jiffies; u32 val; @@ -828,14 +957,14 @@ static int lan78xx_phy_wait_not_busy(struct lan78xx_net *dev) do { ret = lan78xx_read_reg(dev, MII_ACC, &val); - if (unlikely(ret < 0)) - return -EIO; + if (ret < 0) + return ret; if (!(val & MII_ACC_MII_BUSY_)) return 0; } while (!time_after(jiffies, start_time + HZ)); - return -EIO; + return -ETIMEDOUT; } static inline u32 mii_access(int id, int index, int read) @@ -861,8 +990,8 @@ static int lan78xx_wait_eeprom(struct lan78xx_net *dev) do { ret = lan78xx_read_reg(dev, E2P_CMD, &val); - if (unlikely(ret < 0)) - return -EIO; + if (ret < 0) + return ret; if (!(val & E2P_CMD_EPC_BUSY_) || (val & E2P_CMD_EPC_TIMEOUT_)) @@ -872,7 +1001,7 @@ static int lan78xx_wait_eeprom(struct lan78xx_net *dev) if (val & (E2P_CMD_EPC_TIMEOUT_ | E2P_CMD_EPC_BUSY_)) { netdev_warn(dev->net, "EEPROM read operation timeout"); - return -EIO; + return -ETIMEDOUT; } return 0; @@ -886,8 +1015,8 @@ static int lan78xx_eeprom_confirm_not_busy(struct lan78xx_net *dev) do { ret = lan78xx_read_reg(dev, E2P_CMD, &val); - if (unlikely(ret < 0)) - return -EIO; + if (ret < 0) + return ret; if (!(val & E2P_CMD_EPC_BUSY_)) return 0; @@ -896,75 +1025,84 @@ static int lan78xx_eeprom_confirm_not_busy(struct lan78xx_net *dev) } while (!time_after(jiffies, start_time + HZ)); netdev_warn(dev->net, "EEPROM is busy"); - return -EIO; + return -ETIMEDOUT; } static int lan78xx_read_raw_eeprom(struct lan78xx_net *dev, u32 offset, u32 length, u8 *data) { - u32 val; - u32 saved; + u32 val, saved; int i, ret; - int retval; /* depends on chip, some EEPROM pins are muxed with LED function. * disable & restore LED function to access EEPROM. */ ret = lan78xx_read_reg(dev, HW_CFG, &val); + if (ret < 0) + return ret; + saved = val; if (dev->chipid == ID_REV_CHIP_ID_7800_) { val &= ~(HW_CFG_LED1_EN_ | HW_CFG_LED0_EN_); ret = lan78xx_write_reg(dev, HW_CFG, val); + if (ret < 0) + return ret; } - retval = lan78xx_eeprom_confirm_not_busy(dev); - if (retval) - return retval; + ret = lan78xx_eeprom_confirm_not_busy(dev); + if (ret == -ETIMEDOUT) + goto read_raw_eeprom_done; + /* If USB fails, there is nothing to do */ + if (ret < 0) + return ret; for (i = 0; i < length; i++) { val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_READ_; val |= (offset & E2P_CMD_EPC_ADDR_MASK_); ret = lan78xx_write_reg(dev, E2P_CMD, val); - if (unlikely(ret < 0)) { - retval = -EIO; - goto exit; - } + if (ret < 0) + return ret; - retval = lan78xx_wait_eeprom(dev); - if (retval < 0) - goto exit; + ret = lan78xx_wait_eeprom(dev); + /* Looks like not USB specific error, try to recover */ + if (ret == -ETIMEDOUT) + goto read_raw_eeprom_done; + /* If USB fails, there is nothing to do */ + if (ret < 0) + return ret; ret = lan78xx_read_reg(dev, E2P_DATA, &val); - if (unlikely(ret < 0)) { - retval = -EIO; - goto exit; - } + if (ret < 0) + return ret; data[i] = val & 0xFF; offset++; } - retval = 0; -exit: - if (dev->chipid == ID_REV_CHIP_ID_7800_) - ret = lan78xx_write_reg(dev, HW_CFG, saved); - - return retval; +read_raw_eeprom_done: + if (dev->chipid == ID_REV_CHIP_ID_7800_) { + int rc = lan78xx_write_reg(dev, HW_CFG, saved); + /* If USB fails, there is nothing to do */ + if (rc < 0) + return rc; + } + return ret; } static int lan78xx_read_eeprom(struct lan78xx_net *dev, u32 offset, u32 length, u8 *data) { - u8 sig; int ret; + u8 sig; ret = lan78xx_read_raw_eeprom(dev, 0, 1, &sig); - if ((ret == 0) && (sig == EEPROM_INDICATOR)) - ret = lan78xx_read_raw_eeprom(dev, offset, length, data); - else - ret = -EINVAL; + if (ret < 0) + return ret; - return ret; + if (sig != EEPROM_INDICATOR) + return -ENODATA; + + return lan78xx_read_raw_eeprom(dev, offset, length, data); } static int lan78xx_write_raw_eeprom(struct lan78xx_net *dev, u32 offset, @@ -973,113 +1111,147 @@ static int lan78xx_write_raw_eeprom(struct lan78xx_net *dev, u32 offset, u32 val; u32 saved; int i, ret; - int retval; /* depends on chip, some EEPROM pins are muxed with LED function. * disable & restore LED function to access EEPROM. */ ret = lan78xx_read_reg(dev, HW_CFG, &val); + if (ret < 0) + return ret; + saved = val; if (dev->chipid == ID_REV_CHIP_ID_7800_) { val &= ~(HW_CFG_LED1_EN_ | HW_CFG_LED0_EN_); ret = lan78xx_write_reg(dev, HW_CFG, val); + if (ret < 0) + return ret; } - retval = lan78xx_eeprom_confirm_not_busy(dev); - if (retval) - goto exit; + ret = lan78xx_eeprom_confirm_not_busy(dev); + /* Looks like not USB specific error, try to recover */ + if (ret == -ETIMEDOUT) + goto write_raw_eeprom_done; + /* If USB fails, there is nothing to do */ + if (ret < 0) + return ret; /* Issue write/erase enable command */ val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_EWEN_; ret = lan78xx_write_reg(dev, E2P_CMD, val); - if (unlikely(ret < 0)) { - retval = -EIO; - goto exit; - } + if (ret < 0) + return ret; - retval = lan78xx_wait_eeprom(dev); - if (retval < 0) - goto exit; + ret = lan78xx_wait_eeprom(dev); + /* Looks like not USB specific error, try to recover */ + if (ret == -ETIMEDOUT) + goto write_raw_eeprom_done; + /* If USB fails, there is nothing to do */ + if (ret < 0) + return ret; for (i = 0; i < length; i++) { /* Fill data register */ val = data[i]; ret = lan78xx_write_reg(dev, E2P_DATA, val); - if (ret < 0) { - retval = -EIO; - goto exit; - } + if (ret < 0) + return ret; /* Send "write" command */ val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_WRITE_; val |= (offset & E2P_CMD_EPC_ADDR_MASK_); ret = lan78xx_write_reg(dev, E2P_CMD, val); - if (ret < 0) { - retval = -EIO; - goto exit; - } + if (ret < 0) + return ret; - retval = lan78xx_wait_eeprom(dev); - if (retval < 0) - goto exit; + ret = lan78xx_wait_eeprom(dev); + /* Looks like not USB specific error, try to recover */ + if (ret == -ETIMEDOUT) + goto write_raw_eeprom_done; + /* If USB fails, there is nothing to do */ + if (ret < 0) + return ret; offset++; } - retval = 0; -exit: - if (dev->chipid == ID_REV_CHIP_ID_7800_) - ret = lan78xx_write_reg(dev, HW_CFG, saved); - - return retval; +write_raw_eeprom_done: + if (dev->chipid == ID_REV_CHIP_ID_7800_) { + int rc = lan78xx_write_reg(dev, HW_CFG, saved); + /* If USB fails, there is nothing to do */ + if (rc < 0) + return rc; + } + return ret; } static int lan78xx_read_raw_otp(struct lan78xx_net *dev, u32 offset, u32 length, u8 *data) { - int i; - u32 buf; unsigned long timeout; + int ret, i; + u32 buf; - lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + if (ret < 0) + return ret; if (buf & OTP_PWR_DN_PWRDN_N_) { /* clear it and wait to be cleared */ - lan78xx_write_reg(dev, OTP_PWR_DN, 0); + ret = lan78xx_write_reg(dev, OTP_PWR_DN, 0); + if (ret < 0) + return ret; timeout = jiffies + HZ; do { usleep_range(1, 10); - lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + if (ret < 0) + return ret; + if (time_after(jiffies, timeout)) { netdev_warn(dev->net, "timeout on OTP_PWR_DN"); - return -EIO; + return -ETIMEDOUT; } } while (buf & OTP_PWR_DN_PWRDN_N_); } for (i = 0; i < length; i++) { - lan78xx_write_reg(dev, OTP_ADDR1, - ((offset + i) >> 8) & OTP_ADDR1_15_11); - lan78xx_write_reg(dev, OTP_ADDR2, - ((offset + i) & OTP_ADDR2_10_3)); + ret = lan78xx_write_reg(dev, OTP_ADDR1, + ((offset + i) >> 8) & OTP_ADDR1_15_11); + if (ret < 0) + return ret; - lan78xx_write_reg(dev, OTP_FUNC_CMD, OTP_FUNC_CMD_READ_); - lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); + ret = lan78xx_write_reg(dev, OTP_ADDR2, + ((offset + i) & OTP_ADDR2_10_3)); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, OTP_FUNC_CMD, OTP_FUNC_CMD_READ_); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); + if (ret < 0) + return ret; timeout = jiffies + HZ; do { udelay(1); - lan78xx_read_reg(dev, OTP_STATUS, &buf); + ret = lan78xx_read_reg(dev, OTP_STATUS, &buf); + if (ret < 0) + return ret; + if (time_after(jiffies, timeout)) { netdev_warn(dev->net, "timeout on OTP_STATUS"); - return -EIO; + return -ETIMEDOUT; } } while (buf & OTP_STATUS_BUSY_); - lan78xx_read_reg(dev, OTP_RD_DATA, &buf); + ret = lan78xx_read_reg(dev, OTP_RD_DATA, &buf); + if (ret < 0) + return ret; data[i] = (u8)(buf & 0xFF); } @@ -1093,45 +1265,72 @@ static int lan78xx_write_raw_otp(struct lan78xx_net *dev, u32 offset, int i; u32 buf; unsigned long timeout; + int ret; - lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + if (ret < 0) + return ret; if (buf & OTP_PWR_DN_PWRDN_N_) { /* clear it and wait to be cleared */ - lan78xx_write_reg(dev, OTP_PWR_DN, 0); + ret = lan78xx_write_reg(dev, OTP_PWR_DN, 0); + if (ret < 0) + return ret; timeout = jiffies + HZ; do { udelay(1); - lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + if (ret < 0) + return ret; + if (time_after(jiffies, timeout)) { netdev_warn(dev->net, "timeout on OTP_PWR_DN completion"); - return -EIO; + return -ETIMEDOUT; } } while (buf & OTP_PWR_DN_PWRDN_N_); } /* set to BYTE program mode */ - lan78xx_write_reg(dev, OTP_PRGM_MODE, OTP_PRGM_MODE_BYTE_); + ret = lan78xx_write_reg(dev, OTP_PRGM_MODE, OTP_PRGM_MODE_BYTE_); + if (ret < 0) + return ret; for (i = 0; i < length; i++) { - lan78xx_write_reg(dev, OTP_ADDR1, - ((offset + i) >> 8) & OTP_ADDR1_15_11); - lan78xx_write_reg(dev, OTP_ADDR2, - ((offset + i) & OTP_ADDR2_10_3)); - lan78xx_write_reg(dev, OTP_PRGM_DATA, data[i]); - lan78xx_write_reg(dev, OTP_TST_CMD, OTP_TST_CMD_PRGVRFY_); - lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); + ret = lan78xx_write_reg(dev, OTP_ADDR1, + ((offset + i) >> 8) & OTP_ADDR1_15_11); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, OTP_ADDR2, + ((offset + i) & OTP_ADDR2_10_3)); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, OTP_PRGM_DATA, data[i]); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, OTP_TST_CMD, OTP_TST_CMD_PRGVRFY_); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); + if (ret < 0) + return ret; timeout = jiffies + HZ; do { udelay(1); - lan78xx_read_reg(dev, OTP_STATUS, &buf); + ret = lan78xx_read_reg(dev, OTP_STATUS, &buf); + if (ret < 0) + return ret; + if (time_after(jiffies, timeout)) { netdev_warn(dev->net, "Timeout on OTP_STATUS completion"); - return -EIO; + return -ETIMEDOUT; } } while (buf & OTP_STATUS_BUSY_); } @@ -1168,7 +1367,7 @@ static int lan78xx_dataport_wait_not_busy(struct lan78xx_net *dev) ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel); if (unlikely(ret < 0)) - return -EIO; + return ret; if (dp_sel & DP_SEL_DPRDY_) return 0; @@ -1178,44 +1377,51 @@ static int lan78xx_dataport_wait_not_busy(struct lan78xx_net *dev) netdev_warn(dev->net, "%s timed out", __func__); - return -EIO; + return -ETIMEDOUT; } static int lan78xx_dataport_write(struct lan78xx_net *dev, u32 ram_select, u32 addr, u32 length, u32 *buf) { struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); - u32 dp_sel; int i, ret; - if (usb_autopm_get_interface(dev->intf) < 0) - return 0; + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + return ret; mutex_lock(&pdata->dataport_mutex); ret = lan78xx_dataport_wait_not_busy(dev); if (ret < 0) - goto done; - - ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel); + goto dataport_write; - dp_sel &= ~DP_SEL_RSEL_MASK_; - dp_sel |= ram_select; - ret = lan78xx_write_reg(dev, DP_SEL, dp_sel); + ret = lan78xx_update_reg(dev, DP_SEL, DP_SEL_RSEL_MASK_, ram_select); + if (ret < 0) + goto dataport_write; for (i = 0; i < length; i++) { ret = lan78xx_write_reg(dev, DP_ADDR, addr + i); + if (ret < 0) + goto dataport_write; ret = lan78xx_write_reg(dev, DP_DATA, buf[i]); + if (ret < 0) + goto dataport_write; ret = lan78xx_write_reg(dev, DP_CMD, DP_CMD_WRITE_); + if (ret < 0) + goto dataport_write; ret = lan78xx_dataport_wait_not_busy(dev); if (ret < 0) - goto done; + goto dataport_write; } -done: +dataport_write: + if (ret < 0) + netdev_warn(dev->net, "dataport write failed %pe", ERR_PTR(ret)); + mutex_unlock(&pdata->dataport_mutex); usb_autopm_put_interface(dev->intf); @@ -1251,23 +1457,39 @@ static void lan78xx_deferred_multicast_write(struct work_struct *param) struct lan78xx_priv *pdata = container_of(param, struct lan78xx_priv, set_multicast); struct lan78xx_net *dev = pdata->dev; - int i; + int i, ret; netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x\n", pdata->rfe_ctl); - lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, DP_SEL_VHF_VLAN_LEN, - DP_SEL_VHF_HASH_LEN, pdata->mchash_table); + ret = lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, + DP_SEL_VHF_VLAN_LEN, + DP_SEL_VHF_HASH_LEN, pdata->mchash_table); + if (ret < 0) + goto multicast_write_done; for (i = 1; i < NUM_OF_MAF; i++) { - lan78xx_write_reg(dev, MAF_HI(i), 0); - lan78xx_write_reg(dev, MAF_LO(i), - pdata->pfilter_table[i][1]); - lan78xx_write_reg(dev, MAF_HI(i), - pdata->pfilter_table[i][0]); + ret = lan78xx_write_reg(dev, MAF_HI(i), 0); + if (ret < 0) + goto multicast_write_done; + + ret = lan78xx_write_reg(dev, MAF_LO(i), + pdata->pfilter_table[i][1]); + if (ret < 0) + goto multicast_write_done; + + ret = lan78xx_write_reg(dev, MAF_HI(i), + pdata->pfilter_table[i][0]); + if (ret < 0) + goto multicast_write_done; } - lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); + ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); + +multicast_write_done: + if (ret < 0) + netdev_warn(dev->net, "multicast write failed %pe", ERR_PTR(ret)); + return; } static void lan78xx_set_multicast(struct net_device *netdev) @@ -1334,40 +1556,6 @@ static void lan78xx_set_multicast(struct net_device *netdev) schedule_work(&pdata->set_multicast); } -static int lan78xx_update_flowcontrol(struct lan78xx_net *dev, u8 duplex, - u16 lcladv, u16 rmtadv) -{ - u32 flow = 0, fct_flow = 0; - u8 cap; - - if (dev->fc_autoneg) - cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv); - else - cap = dev->fc_request_control; - - if (cap & FLOW_CTRL_TX) - flow |= (FLOW_CR_TX_FCEN_ | 0xFFFF); - - if (cap & FLOW_CTRL_RX) - flow |= FLOW_CR_RX_FCEN_; - - if (dev->udev->speed == USB_SPEED_SUPER) - fct_flow = FLOW_CTRL_THRESHOLD(FLOW_ON_SS, FLOW_OFF_SS); - else if (dev->udev->speed == USB_SPEED_HIGH) - fct_flow = FLOW_CTRL_THRESHOLD(FLOW_ON_HS, FLOW_OFF_HS); - - netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s", - (cap & FLOW_CTRL_RX ? "enabled" : "disabled"), - (cap & FLOW_CTRL_TX ? "enabled" : "disabled")); - - lan78xx_write_reg(dev, FCT_FLOW, fct_flow); - - /* threshold value should be set before enabling flow */ - lan78xx_write_reg(dev, FLOW, flow); - - return 0; -} - static void lan78xx_rx_urb_submit_all(struct lan78xx_net *dev); static int lan78xx_mac_reset(struct lan78xx_net *dev) @@ -1376,24 +1564,24 @@ static int lan78xx_mac_reset(struct lan78xx_net *dev) u32 val; int ret; - mutex_lock(&dev->phy_mutex); + mutex_lock(&dev->mdiobus_mutex); /* Resetting the device while there is activity on the MDIO * bus can result in the MAC interface locking up and not * completing register access transactions. */ - ret = lan78xx_phy_wait_not_busy(dev); + ret = lan78xx_mdiobus_wait_not_busy(dev); if (ret < 0) - goto done; + goto exit_unlock; ret = lan78xx_read_reg(dev, MAC_CR, &val); if (ret < 0) - goto done; + goto exit_unlock; val |= MAC_CR_RST_; ret = lan78xx_write_reg(dev, MAC_CR, val); if (ret < 0) - goto done; + goto exit_unlock; /* Wait for the reset to complete before allowing any further * MAC register accesses otherwise the MAC may lock up. @@ -1401,112 +1589,33 @@ static int lan78xx_mac_reset(struct lan78xx_net *dev) do { ret = lan78xx_read_reg(dev, MAC_CR, &val); if (ret < 0) - goto done; + goto exit_unlock; if (!(val & MAC_CR_RST_)) { ret = 0; - goto done; + goto exit_unlock; } } while (!time_after(jiffies, start_time + HZ)); ret = -ETIMEDOUT; -done: - mutex_unlock(&dev->phy_mutex); +exit_unlock: + mutex_unlock(&dev->mdiobus_mutex); return ret; } -static int lan78xx_link_reset(struct lan78xx_net *dev) +/** + * lan78xx_phy_int_ack - Acknowledge PHY interrupt + * @dev: pointer to the LAN78xx device structure + * + * This function acknowledges the PHY interrupt by setting the + * INT_STS_PHY_INT_ bit in the interrupt status register (INT_STS). + * + * Return: 0 on success or a negative error code on failure. + */ +static int lan78xx_phy_int_ack(struct lan78xx_net *dev) { - struct phy_device *phydev = dev->net->phydev; - struct ethtool_link_ksettings ecmd; - int ladv, radv, ret, link; - u32 buf; - - /* clear LAN78xx interrupt status */ - ret = lan78xx_write_reg(dev, INT_STS, INT_STS_PHY_INT_); - if (unlikely(ret < 0)) - return ret; - - mutex_lock(&phydev->lock); - phy_read_status(phydev); - link = phydev->link; - mutex_unlock(&phydev->lock); - - if (!link && dev->link_on) { - dev->link_on = false; - - /* reset MAC */ - ret = lan78xx_mac_reset(dev); - if (ret < 0) - return ret; - - del_timer(&dev->stat_monitor); - } else if (link && !dev->link_on) { - dev->link_on = true; - - phy_ethtool_ksettings_get(phydev, &ecmd); - - if (dev->udev->speed == USB_SPEED_SUPER) { - if (ecmd.base.speed == 1000) { - /* disable U2 */ - ret = lan78xx_read_reg(dev, USB_CFG1, &buf); - if (ret < 0) - return ret; - buf &= ~USB_CFG1_DEV_U2_INIT_EN_; - ret = lan78xx_write_reg(dev, USB_CFG1, buf); - if (ret < 0) - return ret; - /* enable U1 */ - ret = lan78xx_read_reg(dev, USB_CFG1, &buf); - if (ret < 0) - return ret; - buf |= USB_CFG1_DEV_U1_INIT_EN_; - ret = lan78xx_write_reg(dev, USB_CFG1, buf); - if (ret < 0) - return ret; - } else { - /* enable U1 & U2 */ - ret = lan78xx_read_reg(dev, USB_CFG1, &buf); - if (ret < 0) - return ret; - buf |= USB_CFG1_DEV_U2_INIT_EN_; - buf |= USB_CFG1_DEV_U1_INIT_EN_; - ret = lan78xx_write_reg(dev, USB_CFG1, buf); - if (ret < 0) - return ret; - } - } - - ladv = phy_read(phydev, MII_ADVERTISE); - if (ladv < 0) - return ladv; - - radv = phy_read(phydev, MII_LPA); - if (radv < 0) - return radv; - - netif_dbg(dev, link, dev->net, - "speed: %u duplex: %d anadv: 0x%04x anlpa: 0x%04x", - ecmd.base.speed, ecmd.base.duplex, ladv, radv); - - ret = lan78xx_update_flowcontrol(dev, ecmd.base.duplex, ladv, - radv); - if (ret < 0) - return ret; - - if (!timer_pending(&dev->stat_monitor)) { - dev->delta = 1; - mod_timer(&dev->stat_monitor, - jiffies + STAT_UPDATE_TIMER); - } - - lan78xx_rx_urb_submit_all(dev); - - napi_schedule(&dev->napi); - } - - return 0; + return lan78xx_write_reg(dev, INT_STS, INT_STS_PHY_INT_); } /* some work can't be done in tasklets, so we use keventd @@ -1535,13 +1644,10 @@ static void lan78xx_status(struct lan78xx_net *dev, struct urb *urb) if (intdata & INT_ENP_PHY_INT) { netif_dbg(dev, link, dev->net, "PHY INTR: 0x%08x\n", intdata); - lan78xx_defer_kevent(dev, EVENT_LINK_RESET); + lan78xx_defer_kevent(dev, EVENT_PHY_INT_ACK); - if (dev->domain_data.phyirq > 0) { - local_irq_disable(); - generic_handle_irq(dev->domain_data.phyirq); - local_irq_enable(); - } + if (dev->domain_data.phyirq > 0) + generic_handle_irq_safe(dev->domain_data.phyirq); } else { netdev_warn(dev->net, "unexpected interrupt: 0x%08x\n", intdata); @@ -1603,12 +1709,16 @@ static void lan78xx_get_strings(struct net_device *netdev, u32 stringset, { if (stringset == ETH_SS_STATS) memcpy(data, lan78xx_gstrings, sizeof(lan78xx_gstrings)); + else if (stringset == ETH_SS_TEST) + net_selftest_get_strings(data); } static int lan78xx_get_sset_count(struct net_device *netdev, int sset) { if (sset == ETH_SS_STATS) return ARRAY_SIZE(lan78xx_gstrings); + else if (sset == ETH_SS_TEST) + return net_selftest_get_count(); else return -EOPNOTSUPP; } @@ -1638,6 +1748,7 @@ static void lan78xx_get_wol(struct net_device *netdev, ret = lan78xx_read_reg(dev, USB_CFG0, &buf); if (unlikely(ret < 0)) { + netdev_warn(dev->net, "failed to get WoL %pe", ERR_PTR(ret)); wol->supported = 0; wol->wolopts = 0; } else { @@ -1660,102 +1771,39 @@ static int lan78xx_set_wol(struct net_device *netdev, struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); int ret; - ret = usb_autopm_get_interface(dev->intf); - if (ret < 0) - return ret; - if (wol->wolopts & ~WAKE_ALL) return -EINVAL; - pdata->wol = wol->wolopts; - - device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts); - - phy_ethtool_set_wol(netdev->phydev, wol); - - usb_autopm_put_interface(dev->intf); - - return ret; -} - -static int lan78xx_get_eee(struct net_device *net, struct ethtool_eee *edata) -{ - struct lan78xx_net *dev = netdev_priv(net); - struct phy_device *phydev = net->phydev; - int ret; - u32 buf; - ret = usb_autopm_get_interface(dev->intf); if (ret < 0) return ret; - ret = phy_ethtool_get_eee(phydev, edata); + pdata->wol = wol->wolopts; + + ret = device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts); if (ret < 0) - goto exit; + goto exit_pm_put; - ret = lan78xx_read_reg(dev, MAC_CR, &buf); - if (buf & MAC_CR_EEE_EN_) { - edata->eee_enabled = true; - edata->eee_active = !!(edata->advertised & - edata->lp_advertised); - edata->tx_lpi_enabled = true; - /* EEE_TX_LPI_REQ_DLY & tx_lpi_timer are same uSec unit */ - ret = lan78xx_read_reg(dev, EEE_TX_LPI_REQ_DLY, &buf); - edata->tx_lpi_timer = buf; - } else { - edata->eee_enabled = false; - edata->eee_active = false; - edata->tx_lpi_enabled = false; - edata->tx_lpi_timer = 0; - } + ret = phy_ethtool_set_wol(netdev->phydev, wol); - ret = 0; -exit: +exit_pm_put: usb_autopm_put_interface(dev->intf); return ret; } -static int lan78xx_set_eee(struct net_device *net, struct ethtool_eee *edata) +static int lan78xx_get_eee(struct net_device *net, struct ethtool_keee *edata) { struct lan78xx_net *dev = netdev_priv(net); - int ret; - u32 buf; - ret = usb_autopm_get_interface(dev->intf); - if (ret < 0) - return ret; - - if (edata->eee_enabled) { - ret = lan78xx_read_reg(dev, MAC_CR, &buf); - buf |= MAC_CR_EEE_EN_; - ret = lan78xx_write_reg(dev, MAC_CR, buf); - - phy_ethtool_set_eee(net->phydev, edata); - - buf = (u32)edata->tx_lpi_timer; - ret = lan78xx_write_reg(dev, EEE_TX_LPI_REQ_DLY, buf); - } else { - ret = lan78xx_read_reg(dev, MAC_CR, &buf); - buf &= ~MAC_CR_EEE_EN_; - ret = lan78xx_write_reg(dev, MAC_CR, buf); - } - - usb_autopm_put_interface(dev->intf); - - return 0; + return phylink_ethtool_get_eee(dev->phylink, edata); } -static u32 lan78xx_get_link(struct net_device *net) +static int lan78xx_set_eee(struct net_device *net, struct ethtool_keee *edata) { - u32 link; - - mutex_lock(&net->phydev->lock); - phy_read_status(net->phydev); - link = net->phydev->link; - mutex_unlock(&net->phydev->lock); + struct lan78xx_net *dev = netdev_priv(net); - return link; + return phylink_ethtool_set_eee(dev->phylink, edata); } static void lan78xx_get_drvinfo(struct net_device *net, @@ -1763,7 +1811,7 @@ static void lan78xx_get_drvinfo(struct net_device *net, { struct lan78xx_net *dev = netdev_priv(net); - strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); + strscpy(info->driver, DRIVER_NAME, sizeof(info->driver)); usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); } @@ -1785,141 +1833,69 @@ static int lan78xx_get_link_ksettings(struct net_device *net, struct ethtool_link_ksettings *cmd) { struct lan78xx_net *dev = netdev_priv(net); - struct phy_device *phydev = net->phydev; - int ret; - ret = usb_autopm_get_interface(dev->intf); - if (ret < 0) - return ret; - - phy_ethtool_ksettings_get(phydev, cmd); - - usb_autopm_put_interface(dev->intf); - - return ret; + return phylink_ethtool_ksettings_get(dev->phylink, cmd); } static int lan78xx_set_link_ksettings(struct net_device *net, const struct ethtool_link_ksettings *cmd) { struct lan78xx_net *dev = netdev_priv(net); - struct phy_device *phydev = net->phydev; - int ret = 0; - int temp; - - ret = usb_autopm_get_interface(dev->intf); - if (ret < 0) - return ret; - - /* change speed & duplex */ - ret = phy_ethtool_ksettings_set(phydev, cmd); - - if (!cmd->base.autoneg) { - /* force link down */ - temp = phy_read(phydev, MII_BMCR); - phy_write(phydev, MII_BMCR, temp | BMCR_LOOPBACK); - mdelay(1); - phy_write(phydev, MII_BMCR, temp); - } - usb_autopm_put_interface(dev->intf); - - return ret; + return phylink_ethtool_ksettings_set(dev->phylink, cmd); } static void lan78xx_get_pause(struct net_device *net, struct ethtool_pauseparam *pause) { struct lan78xx_net *dev = netdev_priv(net); - struct phy_device *phydev = net->phydev; - struct ethtool_link_ksettings ecmd; - phy_ethtool_ksettings_get(phydev, &ecmd); - - pause->autoneg = dev->fc_autoneg; - - if (dev->fc_request_control & FLOW_CTRL_TX) - pause->tx_pause = 1; - - if (dev->fc_request_control & FLOW_CTRL_RX) - pause->rx_pause = 1; + phylink_ethtool_get_pauseparam(dev->phylink, pause); } static int lan78xx_set_pause(struct net_device *net, struct ethtool_pauseparam *pause) { struct lan78xx_net *dev = netdev_priv(net); - struct phy_device *phydev = net->phydev; - struct ethtool_link_ksettings ecmd; - int ret; - - phy_ethtool_ksettings_get(phydev, &ecmd); - - if (pause->autoneg && !ecmd.base.autoneg) { - ret = -EINVAL; - goto exit; - } - - dev->fc_request_control = 0; - if (pause->rx_pause) - dev->fc_request_control |= FLOW_CTRL_RX; - - if (pause->tx_pause) - dev->fc_request_control |= FLOW_CTRL_TX; - - if (ecmd.base.autoneg) { - __ETHTOOL_DECLARE_LINK_MODE_MASK(fc) = { 0, }; - u32 mii_adv; - - linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, - ecmd.link_modes.advertising); - linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, - ecmd.link_modes.advertising); - mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control); - mii_adv_to_linkmode_adv_t(fc, mii_adv); - linkmode_or(ecmd.link_modes.advertising, fc, - ecmd.link_modes.advertising); - phy_ethtool_ksettings_set(phydev, &ecmd); - } - - dev->fc_autoneg = pause->autoneg; - - ret = 0; -exit: - return ret; + return phylink_ethtool_set_pauseparam(dev->phylink, pause); } static int lan78xx_get_regs_len(struct net_device *netdev) { - if (!netdev->phydev) - return (sizeof(lan78xx_regs)); - else - return (sizeof(lan78xx_regs) + PHY_REG_SIZE); + return sizeof(lan78xx_regs); } static void lan78xx_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *buf) { - u32 *data = buf; - int i, j; struct lan78xx_net *dev = netdev_priv(netdev); + unsigned int data_count = 0; + u32 *data = buf; + int i, ret; /* Read Device/MAC registers */ - for (i = 0; i < ARRAY_SIZE(lan78xx_regs); i++) - lan78xx_read_reg(dev, lan78xx_regs[i], &data[i]); + for (i = 0; i < ARRAY_SIZE(lan78xx_regs); i++) { + ret = lan78xx_read_reg(dev, lan78xx_regs[i], &data[i]); + if (ret < 0) { + netdev_warn(dev->net, + "failed to read register 0x%08x\n", + lan78xx_regs[i]); + goto clean_data; + } - if (!netdev->phydev) - return; + data_count++; + } - /* Read PHY registers */ - for (j = 0; j < 32; i++, j++) - data[i] = phy_read(netdev->phydev, j); + return; + +clean_data: + memset(data, 0, data_count * sizeof(u32)); } static const struct ethtool_ops lan78xx_ethtool_ops = { - .get_link = lan78xx_get_link, + .get_link = ethtool_op_get_link, .nway_reset = phy_ethtool_nway_reset, .get_drvinfo = lan78xx_get_drvinfo, .get_msglevel = lan78xx_get_msglevel, @@ -1929,6 +1905,7 @@ static const struct ethtool_ops lan78xx_ethtool_ops = { .set_eeprom = lan78xx_ethtool_set_eeprom, .get_ethtool_stats = lan78xx_get_stats, .get_sset_count = lan78xx_get_sset_count, + .self_test = net_selftest, .get_strings = lan78xx_get_strings, .get_wol = lan78xx_get_wol, .set_wol = lan78xx_set_wol, @@ -1943,13 +1920,19 @@ static const struct ethtool_ops lan78xx_ethtool_ops = { .get_regs = lan78xx_get_regs, }; -static void lan78xx_init_mac_address(struct lan78xx_net *dev) +static int lan78xx_init_mac_address(struct lan78xx_net *dev) { u32 addr_lo, addr_hi; u8 addr[6]; + int ret; - lan78xx_read_reg(dev, RX_ADDRL, &addr_lo); - lan78xx_read_reg(dev, RX_ADDRH, &addr_hi); + ret = lan78xx_read_reg(dev, RX_ADDRL, &addr_lo); + if (ret < 0) + return ret; + + ret = lan78xx_read_reg(dev, RX_ADDRH, &addr_hi); + if (ret < 0) + return ret; addr[0] = addr_lo & 0xFF; addr[1] = (addr_lo >> 8) & 0xFF; @@ -1982,14 +1965,26 @@ static void lan78xx_init_mac_address(struct lan78xx_net *dev) (addr[2] << 16) | (addr[3] << 24); addr_hi = addr[4] | (addr[5] << 8); - lan78xx_write_reg(dev, RX_ADDRL, addr_lo); - lan78xx_write_reg(dev, RX_ADDRH, addr_hi); + ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi); + if (ret < 0) + return ret; } - lan78xx_write_reg(dev, MAF_LO(0), addr_lo); - lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); + ret = lan78xx_write_reg(dev, MAF_LO(0), addr_lo); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); + if (ret < 0) + return ret; eth_hw_addr_set(dev->net, addr); + + return 0; } /* MDIO read and write wrappers for phylib */ @@ -2003,27 +1998,31 @@ static int lan78xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx) if (ret < 0) return ret; - mutex_lock(&dev->phy_mutex); + mutex_lock(&dev->mdiobus_mutex); /* confirm MII not busy */ - ret = lan78xx_phy_wait_not_busy(dev); + ret = lan78xx_mdiobus_wait_not_busy(dev); if (ret < 0) goto done; /* set the address, index & direction (read from PHY) */ addr = mii_access(phy_id, idx, MII_READ); ret = lan78xx_write_reg(dev, MII_ACC, addr); + if (ret < 0) + goto done; - ret = lan78xx_phy_wait_not_busy(dev); + ret = lan78xx_mdiobus_wait_not_busy(dev); if (ret < 0) goto done; ret = lan78xx_read_reg(dev, MII_DATA, &val); + if (ret < 0) + goto done; ret = (int)(val & 0xFFFF); done: - mutex_unlock(&dev->phy_mutex); + mutex_unlock(&dev->mdiobus_mutex); usb_autopm_put_interface(dev->intf); return ret; @@ -2040,28 +2039,32 @@ static int lan78xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx, if (ret < 0) return ret; - mutex_lock(&dev->phy_mutex); + mutex_lock(&dev->mdiobus_mutex); /* confirm MII not busy */ - ret = lan78xx_phy_wait_not_busy(dev); + ret = lan78xx_mdiobus_wait_not_busy(dev); if (ret < 0) goto done; val = (u32)regval; ret = lan78xx_write_reg(dev, MII_DATA, val); + if (ret < 0) + goto done; /* set the address, index & direction (write to PHY) */ addr = mii_access(phy_id, idx, MII_WRITE); ret = lan78xx_write_reg(dev, MII_ACC, addr); + if (ret < 0) + goto done; - ret = lan78xx_phy_wait_not_busy(dev); + ret = lan78xx_mdiobus_wait_not_busy(dev); if (ret < 0) goto done; done: - mutex_unlock(&dev->phy_mutex); + mutex_unlock(&dev->mdiobus_mutex); usb_autopm_put_interface(dev->intf); - return 0; + return ret; } static int lan78xx_mdio_init(struct lan78xx_net *dev) @@ -2117,38 +2120,6 @@ static void lan78xx_remove_mdio(struct lan78xx_net *dev) mdiobus_free(dev->mdiobus); } -static void lan78xx_link_status_change(struct net_device *net) -{ - struct phy_device *phydev = net->phydev; - int temp; - - /* At forced 100 F/H mode, chip may fail to set mode correctly - * when cable is switched between long(~50+m) and short one. - * As workaround, set to 10 before setting to 100 - * at forced 100 F/H mode. - */ - if (!phydev->autoneg && (phydev->speed == 100)) { - /* disable phy interrupt */ - temp = phy_read(phydev, LAN88XX_INT_MASK); - temp &= ~LAN88XX_INT_MASK_MDINTPIN_EN_; - phy_write(phydev, LAN88XX_INT_MASK, temp); - - temp = phy_read(phydev, MII_BMCR); - temp &= ~(BMCR_SPEED100 | BMCR_SPEED1000); - phy_write(phydev, MII_BMCR, temp); /* set to 10 first */ - temp |= BMCR_SPEED100; - phy_write(phydev, MII_BMCR, temp); /* set to 100 later */ - - /* clear pending interrupt generated while workaround */ - temp = phy_read(phydev, LAN88XX_INT_STS); - - /* enable phy interrupt back */ - temp = phy_read(phydev, LAN88XX_INT_MASK); - temp |= LAN88XX_INT_MASK_MDINTPIN_EN_; - phy_write(phydev, LAN88XX_INT_MASK, temp); - } -} - static int irq_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hwirq) { @@ -2199,13 +2170,22 @@ static void lan78xx_irq_bus_sync_unlock(struct irq_data *irqd) struct lan78xx_net *dev = container_of(data, struct lan78xx_net, domain_data); u32 buf; + int ret; /* call register access here because irq_bus_lock & irq_bus_sync_unlock * are only two callbacks executed in non-atomic contex. */ - lan78xx_read_reg(dev, INT_EP_CTL, &buf); + ret = lan78xx_read_reg(dev, INT_EP_CTL, &buf); + if (ret < 0) + goto irq_bus_sync_unlock; + if (buf != data->irqenable) - lan78xx_write_reg(dev, INT_EP_CTL, data->irqenable); + ret = lan78xx_write_reg(dev, INT_EP_CTL, data->irqenable); + +irq_bus_sync_unlock: + if (ret < 0) + netdev_err(dev->net, "Failed to sync IRQ enable register: %pe\n", + ERR_PTR(ret)); mutex_unlock(&data->irq_lock); } @@ -2220,24 +2200,24 @@ static struct irq_chip lan78xx_irqchip = { static int lan78xx_setup_irq_domain(struct lan78xx_net *dev) { - struct device_node *of_node; struct irq_domain *irqdomain; unsigned int irqmap = 0; u32 buf; int ret = 0; - of_node = dev->udev->dev.parent->of_node; - mutex_init(&dev->domain_data.irq_lock); - lan78xx_read_reg(dev, INT_EP_CTL, &buf); + ret = lan78xx_read_reg(dev, INT_EP_CTL, &buf); + if (ret < 0) + return ret; + dev->domain_data.irqenable = buf; dev->domain_data.irqchip = &lan78xx_irqchip; dev->domain_data.irq_handler = handle_simple_irq; - irqdomain = irq_domain_add_simple(of_node, MAX_INT_EP, 0, - &chip_domain_ops, &dev->domain_data); + irqdomain = irq_domain_create_simple(dev_fwnode(dev->udev->dev.parent), MAX_INT_EP, 0, + &chip_domain_ops, &dev->domain_data); if (irqdomain) { /* create mapping for PHY interrupt */ irqmap = irq_create_mapping(irqdomain, INT_EP_PHY); @@ -2269,131 +2249,617 @@ static void lan78xx_remove_irq_domain(struct lan78xx_net *dev) dev->domain_data.irqdomain = NULL; } -static int lan8835_fixup(struct phy_device *phydev) +static void lan78xx_mac_config(struct phylink_config *config, unsigned int mode, + const struct phylink_link_state *state) { - int buf; - struct lan78xx_net *dev = netdev_priv(phydev->attached_dev); + struct net_device *net = to_net_dev(config->dev); + struct lan78xx_net *dev = netdev_priv(net); + u32 mac_cr = 0; + int ret; - /* LED2/PME_N/IRQ_N/RGMII_ID pin to IRQ_N mode */ - buf = phy_read_mmd(phydev, MDIO_MMD_PCS, 0x8010); - buf &= ~0x1800; - buf |= 0x0800; - phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8010, buf); + /* Check if the mode is supported */ + if (mode != MLO_AN_FIXED && mode != MLO_AN_PHY) { + netdev_err(net, "Unsupported negotiation mode: %u\n", mode); + return; + } - /* RGMII MAC TXC Delay Enable */ - lan78xx_write_reg(dev, MAC_RGMII_ID, - MAC_RGMII_ID_TXC_DELAY_EN_); + switch (state->interface) { + case PHY_INTERFACE_MODE_GMII: + mac_cr |= MAC_CR_GMII_EN_; + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + break; + default: + netdev_warn(net, "Unsupported interface mode: %d\n", + state->interface); + return; + } - /* RGMII TX DLL Tune Adjust */ - lan78xx_write_reg(dev, RGMII_TX_BYP_DLL, 0x3D00); + ret = lan78xx_update_reg(dev, MAC_CR, MAC_CR_GMII_EN_, mac_cr); + if (ret < 0) + netdev_err(net, "Failed to config MAC with error %pe\n", + ERR_PTR(ret)); +} - dev->interface = PHY_INTERFACE_MODE_RGMII_TXID; +static void lan78xx_mac_link_down(struct phylink_config *config, + unsigned int mode, phy_interface_t interface) +{ + struct net_device *net = to_net_dev(config->dev); + struct lan78xx_net *dev = netdev_priv(net); + int ret; - return 1; + netif_stop_queue(net); + + /* MAC reset will not de-assert TXEN/RXEN, we need to stop them + * manually before reset. TX and RX should be disabled before running + * link_up sequence. + */ + ret = lan78xx_stop_tx_path(dev); + if (ret < 0) + goto link_down_fail; + + ret = lan78xx_stop_rx_path(dev); + if (ret < 0) + goto link_down_fail; + + /* MAC reset seems to not affect MAC configuration, no idea if it is + * really needed, but it was done in previous driver version. So, leave + * it here. + */ + ret = lan78xx_mac_reset(dev); + if (ret < 0) + goto link_down_fail; + + return; + +link_down_fail: + netdev_err(dev->net, "Failed to set MAC down with error %pe\n", + ERR_PTR(ret)); } -static int ksz9031rnx_fixup(struct phy_device *phydev) +/** + * lan78xx_configure_usb - Configure USB link power settings + * @dev: pointer to the LAN78xx device structure + * @speed: negotiated Ethernet link speed (in Mbps) + * + * This function configures U1/U2 link power management for SuperSpeed + * USB devices based on the current Ethernet link speed. It uses the + * USB_CFG1 register to enable or disable U1 and U2 low-power states. + * + * Note: Only LAN7800 and LAN7801 support SuperSpeed (USB 3.x). + * LAN7850 is a High-Speed-only (USB 2.0) device and is skipped. + * + * Return: 0 on success or a negative error code on failure. + */ +static int lan78xx_configure_usb(struct lan78xx_net *dev, int speed) { - struct lan78xx_net *dev = netdev_priv(phydev->attached_dev); + u32 mask, val; + int ret; + + /* Only configure USB settings for SuperSpeed devices */ + if (dev->udev->speed != USB_SPEED_SUPER) + return 0; - /* Micrel9301RNX PHY configuration */ - /* RGMII Control Signal Pad Skew */ - phy_write_mmd(phydev, MDIO_MMD_WIS, 4, 0x0077); - /* RGMII RX Data Pad Skew */ - phy_write_mmd(phydev, MDIO_MMD_WIS, 5, 0x7777); - /* RGMII RX Clock Pad Skew */ - phy_write_mmd(phydev, MDIO_MMD_WIS, 8, 0x1FF); + /* LAN7850 does not support USB 3.x */ + if (dev->chipid == ID_REV_CHIP_ID_7850_) { + netdev_warn_once(dev->net, "Unexpected SuperSpeed for LAN7850 (USB 2.0 only)\n"); + return 0; + } - dev->interface = PHY_INTERFACE_MODE_RGMII_RXID; + switch (speed) { + case SPEED_1000: + /* Disable U2, enable U1 */ + ret = lan78xx_update_reg(dev, USB_CFG1, + USB_CFG1_DEV_U2_INIT_EN_, 0); + if (ret < 0) + return ret; - return 1; + return lan78xx_update_reg(dev, USB_CFG1, + USB_CFG1_DEV_U1_INIT_EN_, + USB_CFG1_DEV_U1_INIT_EN_); + + case SPEED_100: + case SPEED_10: + /* Enable both U1 and U2 */ + mask = USB_CFG1_DEV_U1_INIT_EN_ | USB_CFG1_DEV_U2_INIT_EN_; + val = mask; + return lan78xx_update_reg(dev, USB_CFG1, mask, val); + + default: + netdev_warn(dev->net, "Unsupported link speed: %d\n", speed); + return -EINVAL; + } } -static struct phy_device *lan7801_phy_init(struct lan78xx_net *dev) +/** + * lan78xx_configure_flowcontrol - Set MAC and FIFO flow control configuration + * @dev: pointer to the LAN78xx device structure + * @tx_pause: enable transmission of pause frames + * @rx_pause: enable reception of pause frames + * + * This function configures the LAN78xx flow control settings by writing + * to the FLOW and FCT_FLOW registers. The pause time is set to the + * maximum allowed value (65535 quanta). FIFO thresholds are selected + * based on USB speed. + * + * The Pause Time field is measured in units of 512-bit times (quanta): + * - At 1 Gbps: 1 quanta = 512 ns → max ~33.6 ms pause + * - At 100 Mbps: 1 quanta = 5.12 µs → max ~335 ms pause + * - At 10 Mbps: 1 quanta = 51.2 µs → max ~3.3 s pause + * + * Flow control thresholds (FCT_FLOW) are used to trigger pause/resume: + * - RXUSED is the number of bytes used in the RX FIFO + * - Flow is turned ON when RXUSED ≥ FLOW_ON threshold + * - Flow is turned OFF when RXUSED ≤ FLOW_OFF threshold + * - Both thresholds are encoded in units of 512 bytes (rounded up) + * + * Thresholds differ by USB speed because available USB bandwidth + * affects how fast packets can be drained from the RX FIFO: + * - USB 3.x (SuperSpeed): + * FLOW_ON = 9216 bytes → 18 units + * FLOW_OFF = 4096 bytes → 8 units + * - USB 2.0 (High-Speed): + * FLOW_ON = 8704 bytes → 17 units + * FLOW_OFF = 1024 bytes → 2 units + * + * Note: The FCT_FLOW register must be configured before enabling TX pause + * (i.e., before setting FLOW_CR_TX_FCEN_), as required by the hardware. + * + * Return: 0 on success or a negative error code on failure. + */ +static int lan78xx_configure_flowcontrol(struct lan78xx_net *dev, + bool tx_pause, bool rx_pause) { - u32 buf; + /* Use maximum pause time: 65535 quanta (512-bit times) */ + const u32 pause_time_quanta = 65535; + u32 fct_flow = 0; + u32 flow = 0; int ret; - struct fixed_phy_status fphy_status = { - .link = 1, + + /* Prepare MAC flow control bits */ + if (tx_pause) + flow |= FLOW_CR_TX_FCEN_ | pause_time_quanta; + + if (rx_pause) + flow |= FLOW_CR_RX_FCEN_; + + /* Select RX FIFO thresholds based on USB speed + * + * FCT_FLOW layout: + * bits [6:0] FLOW_ON threshold (RXUSED ≥ ON → assert pause) + * bits [14:8] FLOW_OFF threshold (RXUSED ≤ OFF → deassert pause) + * thresholds are expressed in units of 512 bytes + */ + switch (dev->udev->speed) { + case USB_SPEED_SUPER: + fct_flow = FLOW_CTRL_THRESHOLD(FLOW_ON_SS, FLOW_OFF_SS); + break; + case USB_SPEED_HIGH: + fct_flow = FLOW_CTRL_THRESHOLD(FLOW_ON_HS, FLOW_OFF_HS); + break; + default: + netdev_warn(dev->net, "Unsupported USB speed: %d\n", + dev->udev->speed); + return -EINVAL; + } + + /* Step 1: Write FIFO thresholds before enabling pause frames */ + ret = lan78xx_write_reg(dev, FCT_FLOW, fct_flow); + if (ret < 0) + return ret; + + /* Step 2: Enable MAC pause functionality */ + return lan78xx_write_reg(dev, FLOW, flow); +} + +static void lan78xx_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, + bool tx_pause, bool rx_pause) +{ + struct net_device *net = to_net_dev(config->dev); + struct lan78xx_net *dev = netdev_priv(net); + u32 mac_cr = 0; + int ret; + + switch (speed) { + case SPEED_1000: + mac_cr |= MAC_CR_SPEED_1000_; + break; + case SPEED_100: + mac_cr |= MAC_CR_SPEED_100_; + break; + case SPEED_10: + mac_cr |= MAC_CR_SPEED_10_; + break; + default: + netdev_err(dev->net, "Unsupported speed %d\n", speed); + return; + } + + if (duplex == DUPLEX_FULL) + mac_cr |= MAC_CR_FULL_DUPLEX_; + + /* make sure TXEN and RXEN are disabled before reconfiguring MAC */ + ret = lan78xx_update_reg(dev, MAC_CR, MAC_CR_SPEED_MASK_ | + MAC_CR_FULL_DUPLEX_ | MAC_CR_EEE_EN_, mac_cr); + if (ret < 0) + goto link_up_fail; + + ret = lan78xx_configure_flowcontrol(dev, tx_pause, rx_pause); + if (ret < 0) + goto link_up_fail; + + ret = lan78xx_configure_usb(dev, speed); + if (ret < 0) + goto link_up_fail; + + lan78xx_rx_urb_submit_all(dev); + + ret = lan78xx_flush_rx_fifo(dev); + if (ret < 0) + goto link_up_fail; + + ret = lan78xx_flush_tx_fifo(dev); + if (ret < 0) + goto link_up_fail; + + ret = lan78xx_start_tx_path(dev); + if (ret < 0) + goto link_up_fail; + + ret = lan78xx_start_rx_path(dev); + if (ret < 0) + goto link_up_fail; + + netif_start_queue(net); + + return; + +link_up_fail: + netdev_err(dev->net, "Failed to set MAC up with error %pe\n", + ERR_PTR(ret)); +} + +/** + * lan78xx_mac_eee_enable - Enable or disable MAC-side EEE support + * @dev: LAN78xx device + * @enable: true to enable EEE, false to disable + * + * This function sets or clears the MAC_CR_EEE_EN_ bit to control Energy + * Efficient Ethernet (EEE) operation. According to current understanding + * of the LAN7800 documentation, this bit can be modified while TX and RX + * are enabled. No explicit requirement was found to disable data paths + * before changing this bit. + * + * Return: 0 on success or a negative error code + */ +static int lan78xx_mac_eee_enable(struct lan78xx_net *dev, bool enable) +{ + u32 mac_cr = 0; + + if (enable) + mac_cr |= MAC_CR_EEE_EN_; + + return lan78xx_update_reg(dev, MAC_CR, MAC_CR_EEE_EN_, mac_cr); +} + +static void lan78xx_mac_disable_tx_lpi(struct phylink_config *config) +{ + struct net_device *net = to_net_dev(config->dev); + struct lan78xx_net *dev = netdev_priv(net); + + lan78xx_mac_eee_enable(dev, false); +} + +static int lan78xx_mac_enable_tx_lpi(struct phylink_config *config, u32 timer, + bool tx_clk_stop) +{ + struct net_device *net = to_net_dev(config->dev); + struct lan78xx_net *dev = netdev_priv(net); + int ret; + + /* Software should only change this field when Energy Efficient + * Ethernet Enable (EEEEN) is cleared. We ensure that by clearing + * EEEEN during probe, and phylink itself guarantees that + * mac_disable_tx_lpi() will have been previously called. + */ + ret = lan78xx_write_reg(dev, EEE_TX_LPI_REQ_DLY, timer); + if (ret < 0) + return ret; + + return lan78xx_mac_eee_enable(dev, true); +} + +static const struct phylink_mac_ops lan78xx_phylink_mac_ops = { + .mac_config = lan78xx_mac_config, + .mac_link_down = lan78xx_mac_link_down, + .mac_link_up = lan78xx_mac_link_up, + .mac_disable_tx_lpi = lan78xx_mac_disable_tx_lpi, + .mac_enable_tx_lpi = lan78xx_mac_enable_tx_lpi, +}; + +/** + * lan78xx_set_fixed_link() - Set fixed link configuration for LAN7801 + * @dev: LAN78xx device + * + * Use fixed link configuration with 1 Gbps full duplex. This is used in special + * cases like EVB-KSZ9897-1, where LAN7801 acts as a USB-to-Ethernet interface + * to a switch without a visible PHY. + * + * Return: pointer to the registered fixed PHY, or ERR_PTR() on error. + */ +static int lan78xx_set_fixed_link(struct lan78xx_net *dev) +{ + static const struct phylink_link_state state = { .speed = SPEED_1000, .duplex = DUPLEX_FULL, }; + + netdev_info(dev->net, + "No PHY found on LAN7801 – using fixed link instead (e.g. EVB-KSZ9897-1)\n"); + + return phylink_set_fixed_link(dev->phylink, &state); +} + +/** + * lan78xx_get_phy() - Probe or register PHY device and set interface mode + * @dev: LAN78xx device structure + * + * This function attempts to find a PHY on the MDIO bus. If no PHY is found + * and the chip is LAN7801, it registers a fixed PHY as fallback. It also + * sets dev->interface based on chip ID and detected PHY type. + * + * Return: a valid PHY device pointer, or ERR_PTR() on failure. + */ +static struct phy_device *lan78xx_get_phy(struct lan78xx_net *dev) +{ struct phy_device *phydev; + /* Attempt to locate a PHY on the MDIO bus */ phydev = phy_find_first(dev->mdiobus); - if (!phydev) { - netdev_dbg(dev->net, "PHY Not Found!! Registering Fixed PHY\n"); - phydev = fixed_phy_register(PHY_POLL, &fphy_status, NULL); - if (IS_ERR(phydev)) { - netdev_err(dev->net, "No PHY/fixed_PHY found\n"); - return NULL; + + switch (dev->chipid) { + case ID_REV_CHIP_ID_7801_: + if (phydev) { + /* External RGMII PHY detected */ + dev->interface = PHY_INTERFACE_MODE_RGMII_ID; + phydev->is_internal = false; + + if (!phydev->drv) + netdev_warn(dev->net, + "PHY driver not found – assuming RGMII delays are on PCB or strapped for the PHY\n"); + + return phydev; } - netdev_dbg(dev->net, "Registered FIXED PHY\n"); + dev->interface = PHY_INTERFACE_MODE_RGMII; + /* No PHY found – fallback to fixed PHY (e.g. KSZ switch board) */ + return NULL; + + case ID_REV_CHIP_ID_7800_: + case ID_REV_CHIP_ID_7850_: + if (!phydev) + return ERR_PTR(-ENODEV); + + /* These use internal GMII-connected PHY */ + dev->interface = PHY_INTERFACE_MODE_GMII; + phydev->is_internal = true; + return phydev; + + default: + netdev_err(dev->net, "Unknown CHIP ID: 0x%08x\n", dev->chipid); + return ERR_PTR(-ENODEV); + } +} + +/** + * lan78xx_mac_prepare_for_phy() - Preconfigure MAC-side interface settings + * @dev: LAN78xx device + * + * Configure MAC-side registers according to dev->interface, which should be + * set by lan78xx_get_phy(). + * + * - For PHY_INTERFACE_MODE_RGMII: + * Enable MAC-side TXC delay. This mode seems to be used in a special setup + * without a real PHY, likely on EVB-KSZ9897-1. In that design, LAN7801 is + * connected to the KSZ9897 switch, and the link timing is expected to be + * hardwired (e.g. via strapping or board layout). No devicetree support is + * assumed here. + * + * - For PHY_INTERFACE_MODE_RGMII_ID: + * Disable MAC-side delay and rely on the PHY driver to provide delay. + * + * - For GMII, no MAC-specific config is needed. + * + * Return: 0 on success or a negative error code. + */ +static int lan78xx_mac_prepare_for_phy(struct lan78xx_net *dev) +{ + int ret; + + switch (dev->interface) { + case PHY_INTERFACE_MODE_RGMII: + /* Enable MAC-side TX clock delay */ ret = lan78xx_write_reg(dev, MAC_RGMII_ID, MAC_RGMII_ID_TXC_DELAY_EN_); + if (ret < 0) + return ret; + ret = lan78xx_write_reg(dev, RGMII_TX_BYP_DLL, 0x3D00); - ret = lan78xx_read_reg(dev, HW_CFG, &buf); - buf |= HW_CFG_CLK125_EN_; - buf |= HW_CFG_REFCLK25_EN_; - ret = lan78xx_write_reg(dev, HW_CFG, buf); - } else { - if (!phydev->drv) { - netdev_err(dev->net, "no PHY driver found\n"); - return NULL; - } - dev->interface = PHY_INTERFACE_MODE_RGMII; - /* external PHY fixup for KSZ9031RNX */ - ret = phy_register_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0, - ksz9031rnx_fixup); - if (ret < 0) { - netdev_err(dev->net, "Failed to register fixup for PHY_KSZ9031RNX\n"); - return NULL; - } - /* external PHY fixup for LAN8835 */ - ret = phy_register_fixup_for_uid(PHY_LAN8835, 0xfffffff0, - lan8835_fixup); - if (ret < 0) { - netdev_err(dev->net, "Failed to register fixup for PHY_LAN8835\n"); - return NULL; - } - /* add more external PHY fixup here if needed */ + if (ret < 0) + return ret; + + ret = lan78xx_update_reg(dev, HW_CFG, + HW_CFG_CLK125_EN_ | HW_CFG_REFCLK25_EN_, + HW_CFG_CLK125_EN_ | HW_CFG_REFCLK25_EN_); + if (ret < 0) + return ret; + + break; + + case PHY_INTERFACE_MODE_RGMII_ID: + /* Disable MAC-side TXC delay, PHY provides it */ + ret = lan78xx_write_reg(dev, MAC_RGMII_ID, 0); + if (ret < 0) + return ret; + + break; + + case PHY_INTERFACE_MODE_GMII: + /* No MAC-specific configuration required */ + break; + + default: + netdev_warn(dev->net, "Unsupported interface mode: %d\n", + dev->interface); + break; + } + + return 0; +} + +/** + * lan78xx_configure_leds_from_dt() - Configure LED enables based on DT + * @dev: LAN78xx device + * @phydev: PHY device (must be valid) + * + * Reads "microchip,led-modes" property from the PHY's DT node and enables + * the corresponding number of LEDs by writing to HW_CFG. + * + * This helper preserves the original logic, enabling up to 4 LEDs. + * If the property is not present, this function does nothing. + * + * Return: 0 on success or a negative error code. + */ +static int lan78xx_configure_leds_from_dt(struct lan78xx_net *dev, + struct phy_device *phydev) +{ + struct device_node *np = phydev->mdio.dev.of_node; + u32 reg; + int len, ret; + + if (!np) + return 0; + + len = of_property_count_elems_of_size(np, "microchip,led-modes", + sizeof(u32)); + if (len < 0) + return 0; + + ret = lan78xx_read_reg(dev, HW_CFG, ®); + if (ret < 0) + return ret; - phydev->is_internal = false; + reg &= ~(HW_CFG_LED0_EN_ | HW_CFG_LED1_EN_ | + HW_CFG_LED2_EN_ | HW_CFG_LED3_EN_); + + reg |= (len > 0) * HW_CFG_LED0_EN_ | + (len > 1) * HW_CFG_LED1_EN_ | + (len > 2) * HW_CFG_LED2_EN_ | + (len > 3) * HW_CFG_LED3_EN_; + + return lan78xx_write_reg(dev, HW_CFG, reg); +} + +static int lan78xx_phylink_setup(struct lan78xx_net *dev) +{ + struct phylink_config *pc = &dev->phylink_config; + struct phylink *phylink; + + pc->dev = &dev->net->dev; + pc->type = PHYLINK_NETDEV; + pc->mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE | MAC_10 | + MAC_100 | MAC_1000FD; + pc->mac_managed_pm = true; + pc->lpi_capabilities = MAC_100FD | MAC_1000FD; + /* + * Default TX LPI (Low Power Idle) request delay count is set to 50us. + * + * Source: LAN7800 Documentation, DS00001992H, Section 15.1.57, Page 204. + * + * Reasoning: + * According to the application note in the LAN7800 documentation, a + * zero delay may negatively impact the TX data path’s ability to + * support Gigabit operation. A value of 50us is recommended as a + * reasonable default when the part operates at Gigabit speeds, + * balancing stability and power efficiency in EEE mode. This delay can + * be increased based on performance testing, as EEE is designed for + * scenarios with mostly idle links and occasional bursts of full + * bandwidth transmission. The goal is to ensure reliable Gigabit + * performance without overly aggressive power optimization during + * inactive periods. + */ + pc->lpi_timer_default = 50; + pc->eee_enabled_default = true; + + if (dev->chipid == ID_REV_CHIP_ID_7801_) + phy_interface_set_rgmii(pc->supported_interfaces); + else + __set_bit(PHY_INTERFACE_MODE_GMII, pc->supported_interfaces); + + memcpy(dev->phylink_config.lpi_interfaces, + dev->phylink_config.supported_interfaces, + sizeof(dev->phylink_config.lpi_interfaces)); + + phylink = phylink_create(pc, dev->net->dev.fwnode, + dev->interface, &lan78xx_phylink_mac_ops); + if (IS_ERR(phylink)) + return PTR_ERR(phylink); + + dev->phylink = phylink; + + return 0; +} + +static void lan78xx_phy_uninit(struct lan78xx_net *dev) +{ + if (dev->phylink) { + phylink_disconnect_phy(dev->phylink); + phylink_destroy(dev->phylink); + dev->phylink = NULL; } - return phydev; } static int lan78xx_phy_init(struct lan78xx_net *dev) { - __ETHTOOL_DECLARE_LINK_MODE_MASK(fc) = { 0, }; - int ret; - u32 mii_adv; struct phy_device *phydev; + int ret; - switch (dev->chipid) { - case ID_REV_CHIP_ID_7801_: - phydev = lan7801_phy_init(dev); - if (!phydev) { - netdev_err(dev->net, "lan7801: PHY Init Failed"); - return -EIO; - } - break; + phydev = lan78xx_get_phy(dev); + /* phydev can be NULL if no PHY is found and the chip is LAN7801, + * which will use a fixed link later. + * If an error occurs, return the error code immediately. + */ + if (IS_ERR(phydev)) + return PTR_ERR(phydev); - case ID_REV_CHIP_ID_7800_: - case ID_REV_CHIP_ID_7850_: - phydev = phy_find_first(dev->mdiobus); - if (!phydev) { - netdev_err(dev->net, "no PHY found\n"); - return -EIO; - } - phydev->is_internal = true; - dev->interface = PHY_INTERFACE_MODE_GMII; - break; + ret = lan78xx_phylink_setup(dev); + if (ret < 0) + return ret; - default: - netdev_err(dev->net, "Unknown CHIP ID found\n"); - return -EIO; + ret = lan78xx_mac_prepare_for_phy(dev); + if (ret < 0) + goto phylink_uninit; + + /* If no PHY is found, set up a fixed link. It is very specific to + * the LAN7801 and is used in special cases like EVB-KSZ9897-1 where + * LAN7801 acts as a USB-to-Ethernet interface to a switch without + * a visible PHY. + */ + if (!phydev) { + ret = lan78xx_set_fixed_link(dev); + if (ret < 0) + goto phylink_uninit; + + /* No PHY found, so set up a fixed link and return early. + * No need to configure PHY IRQ or attach to phylink. + */ + return 0; } /* if phyirq is not set, use polling mode in phylib */ @@ -2403,93 +2869,57 @@ static int lan78xx_phy_init(struct lan78xx_net *dev) phydev->irq = PHY_POLL; netdev_dbg(dev->net, "phydev->irq = %d\n", phydev->irq); - /* set to AUTOMDIX */ - phydev->mdix = ETH_TP_MDI_AUTO; - - ret = phy_connect_direct(dev->net, phydev, - lan78xx_link_status_change, - dev->interface); + ret = phylink_connect_phy(dev->phylink, phydev); if (ret) { - netdev_err(dev->net, "can't attach PHY to %s\n", - dev->mdiobus->id); - if (dev->chipid == ID_REV_CHIP_ID_7801_) { - if (phy_is_pseudo_fixed_link(phydev)) { - fixed_phy_unregister(phydev); - } else { - phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, - 0xfffffff0); - phy_unregister_fixup_for_uid(PHY_LAN8835, - 0xfffffff0); - } - } - return -EIO; + netdev_err(dev->net, "can't attach PHY to %s, error %pe\n", + dev->mdiobus->id, ERR_PTR(ret)); + goto phylink_uninit; } - /* MAC doesn't support 1000T Half */ - phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT); - - /* support both flow controls */ - dev->fc_request_control = (FLOW_CTRL_RX | FLOW_CTRL_TX); - linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, - phydev->advertising); - linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, - phydev->advertising); - mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control); - mii_adv_to_linkmode_adv_t(fc, mii_adv); - linkmode_or(phydev->advertising, fc, phydev->advertising); - - if (phydev->mdio.dev.of_node) { - u32 reg; - int len; - - len = of_property_count_elems_of_size(phydev->mdio.dev.of_node, - "microchip,led-modes", - sizeof(u32)); - if (len >= 0) { - /* Ensure the appropriate LEDs are enabled */ - lan78xx_read_reg(dev, HW_CFG, ®); - reg &= ~(HW_CFG_LED0_EN_ | - HW_CFG_LED1_EN_ | - HW_CFG_LED2_EN_ | - HW_CFG_LED3_EN_); - reg |= (len > 0) * HW_CFG_LED0_EN_ | - (len > 1) * HW_CFG_LED1_EN_ | - (len > 2) * HW_CFG_LED2_EN_ | - (len > 3) * HW_CFG_LED3_EN_; - lan78xx_write_reg(dev, HW_CFG, reg); - } - } + ret = lan78xx_configure_leds_from_dt(dev, phydev); + if (ret < 0) + goto phylink_uninit; - genphy_config_aneg(phydev); + return 0; - dev->fc_autoneg = phydev->autoneg; +phylink_uninit: + lan78xx_phy_uninit(dev); - return 0; + return ret; } static int lan78xx_set_rx_max_frame_length(struct lan78xx_net *dev, int size) { - u32 buf; bool rxenabled; + u32 buf; + int ret; - lan78xx_read_reg(dev, MAC_RX, &buf); + ret = lan78xx_read_reg(dev, MAC_RX, &buf); + if (ret < 0) + return ret; rxenabled = ((buf & MAC_RX_RXEN_) != 0); if (rxenabled) { buf &= ~MAC_RX_RXEN_; - lan78xx_write_reg(dev, MAC_RX, buf); + ret = lan78xx_write_reg(dev, MAC_RX, buf); + if (ret < 0) + return ret; } /* add 4 to size for FCS */ buf &= ~MAC_RX_MAX_SIZE_MASK_; buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT_) & MAC_RX_MAX_SIZE_MASK_); - lan78xx_write_reg(dev, MAC_RX, buf); + ret = lan78xx_write_reg(dev, MAC_RX, buf); + if (ret < 0) + return ret; if (rxenabled) { buf |= MAC_RX_RXEN_; - lan78xx_write_reg(dev, MAC_RX, buf); + ret = lan78xx_write_reg(dev, MAC_RX, buf); + if (ret < 0) + return ret; } return 0; @@ -2555,8 +2985,11 @@ static int lan78xx_change_mtu(struct net_device *netdev, int new_mtu) return ret; ret = lan78xx_set_rx_max_frame_length(dev, max_frame_len); - if (!ret) - netdev->mtu = new_mtu; + if (ret < 0) + netdev_err(dev->net, "MTU changed to %d from %d failed with %pe\n", + new_mtu, netdev->mtu, ERR_PTR(ret)); + else + WRITE_ONCE(netdev->mtu, new_mtu); usb_autopm_put_interface(dev->intf); @@ -2568,6 +3001,7 @@ static int lan78xx_set_mac_addr(struct net_device *netdev, void *p) struct lan78xx_net *dev = netdev_priv(netdev); struct sockaddr *addr = p; u32 addr_lo, addr_hi; + int ret; if (netif_running(netdev)) return -EBUSY; @@ -2584,14 +3018,20 @@ static int lan78xx_set_mac_addr(struct net_device *netdev, void *p) addr_hi = netdev->dev_addr[4] | netdev->dev_addr[5] << 8; - lan78xx_write_reg(dev, RX_ADDRL, addr_lo); - lan78xx_write_reg(dev, RX_ADDRH, addr_hi); + ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo); + if (ret < 0) + return ret; + + ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi); + if (ret < 0) + return ret; /* Added to support MAC address changes */ - lan78xx_write_reg(dev, MAF_LO(0), addr_lo); - lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); + ret = lan78xx_write_reg(dev, MAF_LO(0), addr_lo); + if (ret < 0) + return ret; - return 0; + return lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); } /* Enable or disable Rx checksum offload engine */ @@ -2624,9 +3064,7 @@ static int lan78xx_set_features(struct net_device *netdev, spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); - lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); - - return 0; + return lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); } static void lan78xx_deferred_vlan_write(struct work_struct *param) @@ -2677,13 +3115,16 @@ static int lan78xx_vlan_rx_kill_vid(struct net_device *netdev, return 0; } -static void lan78xx_init_ltm(struct lan78xx_net *dev) +static int lan78xx_init_ltm(struct lan78xx_net *dev) { + u32 regs[6] = { 0 }; int ret; u32 buf; - u32 regs[6] = { 0 }; ret = lan78xx_read_reg(dev, USB_CFG1, &buf); + if (ret < 0) + goto init_ltm_failed; + if (buf & USB_CFG1_LTM_ENABLE_) { u8 temp[2]; /* Get values from EEPROM first */ @@ -2694,7 +3135,7 @@ static void lan78xx_init_ltm(struct lan78xx_net *dev) 24, (u8 *)regs); if (ret < 0) - return; + return ret; } } else if (lan78xx_read_otp(dev, 0x3F, 2, temp) == 0) { if (temp[0] == 24) { @@ -2703,17 +3144,40 @@ static void lan78xx_init_ltm(struct lan78xx_net *dev) 24, (u8 *)regs); if (ret < 0) - return; + return ret; } } } - lan78xx_write_reg(dev, LTM_BELT_IDLE0, regs[0]); - lan78xx_write_reg(dev, LTM_BELT_IDLE1, regs[1]); - lan78xx_write_reg(dev, LTM_BELT_ACT0, regs[2]); - lan78xx_write_reg(dev, LTM_BELT_ACT1, regs[3]); - lan78xx_write_reg(dev, LTM_INACTIVE0, regs[4]); - lan78xx_write_reg(dev, LTM_INACTIVE1, regs[5]); + ret = lan78xx_write_reg(dev, LTM_BELT_IDLE0, regs[0]); + if (ret < 0) + goto init_ltm_failed; + + ret = lan78xx_write_reg(dev, LTM_BELT_IDLE1, regs[1]); + if (ret < 0) + goto init_ltm_failed; + + ret = lan78xx_write_reg(dev, LTM_BELT_ACT0, regs[2]); + if (ret < 0) + goto init_ltm_failed; + + ret = lan78xx_write_reg(dev, LTM_BELT_ACT1, regs[3]); + if (ret < 0) + goto init_ltm_failed; + + ret = lan78xx_write_reg(dev, LTM_INACTIVE0, regs[4]); + if (ret < 0) + goto init_ltm_failed; + + ret = lan78xx_write_reg(dev, LTM_INACTIVE1, regs[5]); + if (ret < 0) + goto init_ltm_failed; + + return 0; + +init_ltm_failed: + netdev_err(dev->net, "Failed to init LTM with error %pe\n", ERR_PTR(ret)); + return ret; } static int lan78xx_urb_config_init(struct lan78xx_net *dev) @@ -2754,163 +3218,12 @@ static int lan78xx_urb_config_init(struct lan78xx_net *dev) return result; } -static int lan78xx_start_hw(struct lan78xx_net *dev, u32 reg, u32 hw_enable) -{ - return lan78xx_update_reg(dev, reg, hw_enable, hw_enable); -} - -static int lan78xx_stop_hw(struct lan78xx_net *dev, u32 reg, u32 hw_enabled, - u32 hw_disabled) -{ - unsigned long timeout; - bool stopped = true; - int ret; - u32 buf; - - /* Stop the h/w block (if not already stopped) */ - - ret = lan78xx_read_reg(dev, reg, &buf); - if (ret < 0) - return ret; - - if (buf & hw_enabled) { - buf &= ~hw_enabled; - - ret = lan78xx_write_reg(dev, reg, buf); - if (ret < 0) - return ret; - - stopped = false; - timeout = jiffies + HW_DISABLE_TIMEOUT; - do { - ret = lan78xx_read_reg(dev, reg, &buf); - if (ret < 0) - return ret; - - if (buf & hw_disabled) - stopped = true; - else - msleep(HW_DISABLE_DELAY_MS); - } while (!stopped && !time_after(jiffies, timeout)); - } - - ret = stopped ? 0 : -ETIME; - - return ret; -} - -static int lan78xx_flush_fifo(struct lan78xx_net *dev, u32 reg, u32 fifo_flush) -{ - return lan78xx_update_reg(dev, reg, fifo_flush, fifo_flush); -} - -static int lan78xx_start_tx_path(struct lan78xx_net *dev) -{ - int ret; - - netif_dbg(dev, drv, dev->net, "start tx path"); - - /* Start the MAC transmitter */ - - ret = lan78xx_start_hw(dev, MAC_TX, MAC_TX_TXEN_); - if (ret < 0) - return ret; - - /* Start the Tx FIFO */ - - ret = lan78xx_start_hw(dev, FCT_TX_CTL, FCT_TX_CTL_EN_); - if (ret < 0) - return ret; - - return 0; -} - -static int lan78xx_stop_tx_path(struct lan78xx_net *dev) -{ - int ret; - - netif_dbg(dev, drv, dev->net, "stop tx path"); - - /* Stop the Tx FIFO */ - - ret = lan78xx_stop_hw(dev, FCT_TX_CTL, FCT_TX_CTL_EN_, FCT_TX_CTL_DIS_); - if (ret < 0) - return ret; - - /* Stop the MAC transmitter */ - - ret = lan78xx_stop_hw(dev, MAC_TX, MAC_TX_TXEN_, MAC_TX_TXD_); - if (ret < 0) - return ret; - - return 0; -} - -/* The caller must ensure the Tx path is stopped before calling - * lan78xx_flush_tx_fifo(). - */ -static int lan78xx_flush_tx_fifo(struct lan78xx_net *dev) -{ - return lan78xx_flush_fifo(dev, FCT_TX_CTL, FCT_TX_CTL_RST_); -} - -static int lan78xx_start_rx_path(struct lan78xx_net *dev) -{ - int ret; - - netif_dbg(dev, drv, dev->net, "start rx path"); - - /* Start the Rx FIFO */ - - ret = lan78xx_start_hw(dev, FCT_RX_CTL, FCT_RX_CTL_EN_); - if (ret < 0) - return ret; - - /* Start the MAC receiver*/ - - ret = lan78xx_start_hw(dev, MAC_RX, MAC_RX_RXEN_); - if (ret < 0) - return ret; - - return 0; -} - -static int lan78xx_stop_rx_path(struct lan78xx_net *dev) -{ - int ret; - - netif_dbg(dev, drv, dev->net, "stop rx path"); - - /* Stop the MAC receiver */ - - ret = lan78xx_stop_hw(dev, MAC_RX, MAC_RX_RXEN_, MAC_RX_RXD_); - if (ret < 0) - return ret; - - /* Stop the Rx FIFO */ - - ret = lan78xx_stop_hw(dev, FCT_RX_CTL, FCT_RX_CTL_EN_, FCT_RX_CTL_DIS_); - if (ret < 0) - return ret; - - return 0; -} - -/* The caller must ensure the Rx path is stopped before calling - * lan78xx_flush_rx_fifo(). - */ -static int lan78xx_flush_rx_fifo(struct lan78xx_net *dev) -{ - return lan78xx_flush_fifo(dev, FCT_RX_CTL, FCT_RX_CTL_RST_); -} - static int lan78xx_reset(struct lan78xx_net *dev) { struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); unsigned long timeout; int ret; u32 buf; - u8 sig; ret = lan78xx_read_reg(dev, HW_CFG, &buf); if (ret < 0) @@ -2937,8 +3250,6 @@ static int lan78xx_reset(struct lan78xx_net *dev) } } while (buf & HW_CFG_LRST_); - lan78xx_init_mac_address(dev); - /* save DEVID for later usage */ ret = lan78xx_read_reg(dev, ID_REV, &buf); if (ret < 0) @@ -2947,6 +3258,10 @@ static int lan78xx_reset(struct lan78xx_net *dev) dev->chipid = (buf & ID_REV_CHIP_ID_MASK_) >> 16; dev->chiprev = buf & ID_REV_CHIP_REV_MASK_; + ret = lan78xx_init_mac_address(dev); + if (ret < 0) + return ret; + /* Respond to the IN token with a NAK */ ret = lan78xx_read_reg(dev, USB_CFG0, &buf); if (ret < 0) @@ -2959,7 +3274,9 @@ static int lan78xx_reset(struct lan78xx_net *dev) return ret; /* Init LTM */ - lan78xx_init_ltm(dev); + ret = lan78xx_init_ltm(dev); + if (ret < 0) + return ret; ret = lan78xx_write_reg(dev, BURST_CAP, dev->burst_cap); if (ret < 0) @@ -2974,6 +3291,8 @@ static int lan78xx_reset(struct lan78xx_net *dev) return ret; buf |= HW_CFG_MEF_; + buf |= HW_CFG_CLK125_EN_; + buf |= HW_CFG_REFCLK25_EN_; ret = lan78xx_write_reg(dev, HW_CFG, buf); if (ret < 0) @@ -3061,18 +3380,12 @@ static int lan78xx_reset(struct lan78xx_net *dev) if (ret < 0) return ret; + buf &= ~(MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_ | MAC_CR_EEE_EN_); + /* LAN7801 only has RGMII mode */ if (dev->chipid == ID_REV_CHIP_ID_7801_) buf &= ~MAC_CR_GMII_EN_; - if (dev->chipid == ID_REV_CHIP_ID_7800_) { - ret = lan78xx_read_raw_eeprom(dev, 0, 1, &sig); - if (!ret && sig != EEPROM_INDICATOR) { - /* Implies there is no external eeprom. Set mac speed */ - netdev_info(dev->net, "No External EEPROM. Setting MAC Speed\n"); - buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_; - } - } ret = lan78xx_write_reg(dev, MAC_CR, buf); if (ret < 0) return ret; @@ -3122,9 +3435,11 @@ static int lan78xx_open(struct net_device *net) mutex_lock(&dev->dev_mutex); - phy_start(net->phydev); + lan78xx_init_stats(dev); + + napi_enable(&dev->napi); - netif_dbg(dev, ifup, dev->net, "phy initialised successfully"); + set_bit(EVENT_DEV_OPEN, &dev->flags); /* for Link Check */ if (dev->urb_intr) { @@ -3136,35 +3451,13 @@ static int lan78xx_open(struct net_device *net) } } - ret = lan78xx_flush_rx_fifo(dev); - if (ret < 0) - goto done; - ret = lan78xx_flush_tx_fifo(dev); - if (ret < 0) - goto done; - - ret = lan78xx_start_tx_path(dev); - if (ret < 0) - goto done; - ret = lan78xx_start_rx_path(dev); - if (ret < 0) - goto done; - - lan78xx_init_stats(dev); - - set_bit(EVENT_DEV_OPEN, &dev->flags); - - netif_start_queue(net); + phylink_start(dev->phylink); - dev->link_on = false; - - napi_enable(&dev->napi); - - lan78xx_defer_kevent(dev, EVENT_LINK_RESET); done: mutex_unlock(&dev->dev_mutex); - usb_autopm_put_interface(dev->intf); + if (ret < 0) + usb_autopm_put_interface(dev->intf); return ret; } @@ -3214,10 +3507,9 @@ static int lan78xx_stop(struct net_device *net) mutex_lock(&dev->dev_mutex); if (timer_pending(&dev->stat_monitor)) - del_timer_sync(&dev->stat_monitor); + timer_delete_sync(&dev->stat_monitor); clear_bit(EVENT_DEV_OPEN, &dev->flags); - netif_stop_queue(net); napi_disable(&dev->napi); lan78xx_terminate_urbs(dev); @@ -3227,12 +3519,7 @@ static int lan78xx_stop(struct net_device *net) net->stats.rx_packets, net->stats.tx_packets, net->stats.rx_errors, net->stats.tx_errors); - /* ignore errors that occur stopping the Tx and Rx data paths */ - lan78xx_stop_tx_path(dev); - lan78xx_stop_rx_path(dev); - - if (net->phydev) - phy_stop(net->phydev); + phylink_stop(dev->phylink); usb_kill_urb(dev->urb_intr); @@ -3242,7 +3529,7 @@ static int lan78xx_stop(struct net_device *net) */ clear_bit(EVENT_TX_HALT, &dev->flags); clear_bit(EVENT_RX_HALT, &dev->flags); - clear_bit(EVENT_LINK_RESET, &dev->flags); + clear_bit(EVENT_PHY_INT_ACK, &dev->flags); clear_bit(EVENT_STAT_UPDATE, &dev->flags); cancel_delayed_work_sync(&dev->wq); @@ -3609,13 +3896,29 @@ static int lan78xx_rx(struct lan78xx_net *dev, struct sk_buff *skb, size = (rx_cmd_a & RX_CMD_A_LEN_MASK_); align_count = (4 - ((size + RXW_PADDING) % 4)) % 4; + if (unlikely(size > skb->len)) { + netif_dbg(dev, rx_err, dev->net, + "size err rx_cmd_a=0x%08x\n", + rx_cmd_a); + return 0; + } + if (unlikely(rx_cmd_a & RX_CMD_A_RED_)) { netif_dbg(dev, rx_err, dev->net, "Error rx_cmd_a=0x%08x", rx_cmd_a); } else { - u32 frame_len = size - ETH_FCS_LEN; + u32 frame_len; struct sk_buff *skb2; + if (unlikely(size < ETH_FCS_LEN)) { + netif_dbg(dev, rx_err, dev->net, + "size err rx_cmd_a=0x%08x\n", + rx_cmd_a); + return 0; + } + + frame_len = size - ETH_FCS_LEN; + skb2 = napi_alloc_skb(&dev->napi, frame_len); if (!skb2) return 0; @@ -4150,14 +4453,14 @@ static void lan78xx_delayedwork(struct work_struct *work) } } - if (test_bit(EVENT_LINK_RESET, &dev->flags)) { + if (test_bit(EVENT_PHY_INT_ACK, &dev->flags)) { int ret = 0; - clear_bit(EVENT_LINK_RESET, &dev->flags); - if (lan78xx_link_reset(dev) < 0) { - netdev_info(dev->net, "link reset failed (%d)\n", - ret); - } + clear_bit(EVENT_PHY_INT_ACK, &dev->flags); + ret = lan78xx_phy_int_ack(dev); + if (ret) + netdev_info(dev->net, "PHY INT ack failed (%pe)\n", + ERR_PTR(ret)); } if (test_bit(EVENT_STAT_UPDATE, &dev->flags)) { @@ -4231,39 +4534,32 @@ static void lan78xx_disconnect(struct usb_interface *intf) struct lan78xx_net *dev; struct usb_device *udev; struct net_device *net; - struct phy_device *phydev; dev = usb_get_intfdata(intf); usb_set_intfdata(intf, NULL); if (!dev) return; - set_bit(EVENT_DEV_DISCONNECT, &dev->flags); - - netif_napi_del(&dev->napi); - udev = interface_to_usbdev(intf); net = dev->net; - unregister_netdev(net); - - cancel_delayed_work_sync(&dev->wq); + rtnl_lock(); + phylink_stop(dev->phylink); + phylink_disconnect_phy(dev->phylink); + rtnl_unlock(); - phydev = net->phydev; + netif_napi_del(&dev->napi); - phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0); - phy_unregister_fixup_for_uid(PHY_LAN8835, 0xfffffff0); + unregister_netdev(net); - phy_disconnect(net->phydev); + timer_shutdown_sync(&dev->stat_monitor); + set_bit(EVENT_DEV_DISCONNECT, &dev->flags); + cancel_delayed_work_sync(&dev->wq); - if (phy_is_pseudo_fixed_link(phydev)) - fixed_phy_unregister(phydev); + phylink_destroy(dev->phylink); usb_scuttle_anchored_urbs(&dev->deferred); - if (timer_pending(&dev->stat_monitor)) - del_timer_sync(&dev->stat_monitor); - lan78xx_unbind(dev, intf); lan78xx_free_tx_resources(dev); @@ -4317,7 +4613,7 @@ static const struct net_device_ops lan78xx_netdev_ops = { static void lan78xx_stat_monitor(struct timer_list *t) { - struct lan78xx_net *dev = from_timer(dev, t, stat_monitor); + struct lan78xx_net *dev = timer_container_of(dev, t, stat_monitor); lan78xx_defer_kevent(dev, EVENT_STAT_UPDATE); } @@ -4344,7 +4640,6 @@ static int lan78xx_probe(struct usb_interface *intf, goto out1; } - /* netdev_printk() needs this */ SET_NETDEV_DEV(netdev, &intf->dev); dev = netdev_priv(netdev); @@ -4359,7 +4654,7 @@ static int lan78xx_probe(struct usb_interface *intf, skb_queue_head_init(&dev->rxq_done); skb_queue_head_init(&dev->txq_pend); skb_queue_head_init(&dev->rxq_overflow); - mutex_init(&dev->phy_mutex); + mutex_init(&dev->mdiobus_mutex); mutex_init(&dev->dev_mutex); ret = lan78xx_urb_config_init(dev); @@ -4377,9 +4672,9 @@ static int lan78xx_probe(struct usb_interface *intf, /* MTU range: 68 - 9000 */ netdev->max_mtu = MAX_SINGLE_PACKET_SIZE; - netif_set_gso_max_size(netdev, LAN78XX_TSO_SIZE(dev)); + netif_set_tso_max_size(netdev, LAN78XX_TSO_SIZE(dev)); - netif_napi_add(netdev, &dev->napi, lan78xx_poll, LAN78XX_NAPI_WEIGHT); + netif_napi_add(netdev, &dev->napi, lan78xx_poll); INIT_DELAYED_WORK(&dev->wq, lan78xx_delayedwork); init_usb_anchor(&dev->deferred); @@ -4426,30 +4721,31 @@ static int lan78xx_probe(struct usb_interface *intf, goto out4; period = ep_intr->desc.bInterval; - maxp = usb_maxpacket(dev->udev, dev->pipe_intr, 0); - buf = kmalloc(maxp, GFP_KERNEL); - if (!buf) { + maxp = usb_maxpacket(dev->udev, dev->pipe_intr); + + dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->urb_intr) { ret = -ENOMEM; goto out5; } - dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL); - if (!dev->urb_intr) { + buf = kmalloc(maxp, GFP_KERNEL); + if (!buf) { ret = -ENOMEM; - goto out6; - } else { - usb_fill_int_urb(dev->urb_intr, dev->udev, - dev->pipe_intr, buf, maxp, - intr_complete, dev, period); - dev->urb_intr->transfer_flags |= URB_FREE_BUFFER; + goto free_urbs; } - dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out, 1); + usb_fill_int_urb(dev->urb_intr, dev->udev, + dev->pipe_intr, buf, maxp, + intr_complete, dev, period); + dev->urb_intr->transfer_flags |= URB_FREE_BUFFER; + + dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out); /* Reject broken descriptors. */ if (dev->maxpacket == 0) { ret = -ENODEV; - goto out6; + goto free_urbs; } /* driver requires remote-wakeup capability during autosuspend. */ @@ -4457,12 +4753,12 @@ static int lan78xx_probe(struct usb_interface *intf, ret = lan78xx_phy_init(dev); if (ret < 0) - goto out7; + goto free_urbs; ret = register_netdev(netdev); if (ret != 0) { netif_err(dev, probe, netdev, "couldn't register the device\n"); - goto out8; + goto phy_uninit; } usb_set_intfdata(intf, dev); @@ -4477,12 +4773,10 @@ static int lan78xx_probe(struct usb_interface *intf, return 0; -out8: - phy_disconnect(netdev->phydev); -out7: +phy_uninit: + lan78xx_phy_uninit(dev); +free_urbs: usb_free_urb(dev->urb_intr); -out6: - kfree(buf); out5: lan78xx_unbind(dev, intf); out4: @@ -4815,6 +5109,10 @@ static int lan78xx_suspend(struct usb_interface *intf, pm_message_t message) spin_unlock_irq(&dev->txq.lock); } + rtnl_lock(); + phylink_suspend(dev->phylink, false); + rtnl_unlock(); + /* stop RX */ ret = lan78xx_stop_rx_path(dev); if (ret < 0) @@ -4837,7 +5135,7 @@ static int lan78xx_suspend(struct usb_interface *intf, pm_message_t message) /* reattach */ netif_device_attach(dev->net); - del_timer(&dev->stat_monitor); + timer_delete(&dev->stat_monitor); if (PMSG_IS_AUTO(message)) { ret = lan78xx_set_auto_suspend(dev); @@ -5042,11 +5340,15 @@ static int lan78xx_reset_resume(struct usb_interface *intf) if (ret < 0) return ret; - phy_start(dev->net->phydev); - ret = lan78xx_resume(intf); + if (ret < 0) + return ret; - return ret; + rtnl_lock(); + phylink_resume(dev->phylink); + rtnl_unlock(); + + return 0; } static const struct usb_device_id products[] = { diff --git a/drivers/net/usb/net1080.c b/drivers/net/usb/net1080.c index b0c0c9dd6a02..5d4a1fd2b524 100644 --- a/drivers/net/usb/net1080.c +++ b/drivers/net/usb/net1080.c @@ -17,7 +17,7 @@ #include <linux/usb/usbnet.h> #include <linux/slab.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> /* diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c index feb247e355f7..81ca64debc5b 100644 --- a/drivers/net/usb/pegasus.c +++ b/drivers/net/usb/pegasus.c @@ -894,7 +894,7 @@ static void pegasus_get_drvinfo(struct net_device *dev, { pegasus_t *pegasus = netdev_priv(dev); - strlcpy(info->driver, driver_name, sizeof(info->driver)); + strscpy(info->driver, driver_name, sizeof(info->driver)); usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info)); } diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c index 17c9c63b8eeb..2894114858a2 100644 --- a/drivers/net/usb/plusb.c +++ b/drivers/net/usb/plusb.c @@ -18,7 +18,7 @@ /* - * Prolific PL-2301/PL-2302 driver ... http://www.prolific.com.tw/ + * Prolific PL-2301/PL-2302 driver ... http://www.prolific.com.tw/ * * The protocol and handshaking used here should be bug-compatible * with the Linux 2.2 "plusb" driver, by Deti Fliegl. @@ -57,19 +57,11 @@ static inline int pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index) { - return usbnet_read_cmd(dev, req, - USB_DIR_IN | USB_TYPE_VENDOR | - USB_RECIP_DEVICE, + return usbnet_write_cmd(dev, req, USB_TYPE_VENDOR | USB_RECIP_DEVICE, val, index, NULL, 0); } static inline int -pl_clear_QuickLink_features(struct usbnet *dev, int val) -{ - return pl_vendor_req(dev, 1, (u8) val, 0); -} - -static inline int pl_set_QuickLink_features(struct usbnet *dev, int val) { return pl_vendor_req(dev, 3, (u8) val, 0); diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 37e5f3495362..3a4985b582cb 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -13,6 +13,7 @@ #include <linux/ethtool.h> #include <linux/etherdevice.h> #include <linux/if_arp.h> +#include <linux/kstrtox.h> #include <linux/mii.h> #include <linux/rtnetlink.h> #include <linux/usb.h> @@ -120,7 +121,6 @@ static const struct net_device_ops qmimux_netdev_ops = { .ndo_open = qmimux_open, .ndo_stop = qmimux_stop, .ndo_start_xmit = qmimux_start_xmit, - .ndo_get_stats64 = dev_get_tstats64, }; static void qmimux_setup(struct net_device *dev) @@ -132,6 +132,7 @@ static void qmimux_setup(struct net_device *dev) dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; dev->netdev_ops = &qmimux_netdev_ops; dev->mtu = 1500; + dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS; dev->needs_free_netdev = true; } @@ -190,7 +191,12 @@ static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) skbn = netdev_alloc_skb(net, pkt_len + LL_MAX_HEADER); if (!skbn) return 0; - skbn->dev = net; + + /* Raw IP packets don't have a MAC header, but other subsystems + * (like xfrm) may still access MAC header offsets, so they must + * be initialized. + */ + skb_reset_mac_header(skbn); switch (skb->data[offset + qmimux_hdr_sz] & 0xf0) { case 0x40: @@ -201,6 +207,7 @@ static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) break; default: /* not ip - do not know what to do */ + kfree_skb(skbn); goto skip; } @@ -257,12 +264,6 @@ static int qmimux_register_device(struct net_device *real_dev, u8 mux_id) priv->mux_id = mux_id; priv->real_dev = real_dev; - new_dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); - if (!new_dev->tstats) { - err = -ENOBUFS; - goto out_free_newdev; - } - new_dev->sysfs_groups[0] = &qmi_wwan_sysfs_qmimux_attr_group; err = register_netdevice(new_dev); @@ -295,7 +296,6 @@ static void qmimux_unregister_device(struct net_device *dev, struct qmimux_priv *priv = netdev_priv(dev); struct net_device *real_dev = priv->real_dev; - free_percpu(dev->tstats); netdev_upper_dev_unlink(real_dev, dev); unregister_netdevice_queue(dev, head); @@ -344,7 +344,7 @@ static ssize_t raw_ip_store(struct device *d, struct device_attribute *attr, co bool enable; int ret; - if (strtobool(buf, &enable)) + if (kstrtobool(buf, &enable)) return -EINVAL; /* no change? */ @@ -493,7 +493,7 @@ static ssize_t pass_through_store(struct device *d, struct qmi_wwan_state *info; bool enable; - if (strtobool(buf, &enable)) + if (kstrtobool(buf, &enable)) return -EINVAL; info = (void *)&dev->data; @@ -644,7 +644,6 @@ static const struct net_device_ops qmi_wwan_netdev_ops = { .ndo_start_xmit = usbnet_start_xmit, .ndo_tx_timeout = usbnet_tx_timeout, .ndo_change_mtu = usbnet_change_mtu, - .ndo_get_stats64 = dev_get_tstats64, .ndo_set_mac_address = qmi_wwan_mac_addr, .ndo_validate_addr = eth_validate_addr, }; @@ -1083,11 +1082,13 @@ static const struct usb_device_id products[] = { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7), .driver_info = (unsigned long)&qmi_wwan_info, }, + {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0122)}, /* Quectel RG650V */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0125)}, /* Quectel EC25, EC20 R2.0 Mini PCIe */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0306)}, /* Quectel EP06/EG06/EM06 */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0512)}, /* Quectel EG12/EM12 */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0620)}, /* Quectel EM160R-GL */ {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0800)}, /* Quectel RM500Q-GL */ + {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0801)}, /* Quectel RM520N */ /* 3. Combined interface devices matching on interface number */ {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */ @@ -1219,7 +1220,9 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x05c6, 0x9080, 8)}, {QMI_FIXED_INTF(0x05c6, 0x9083, 3)}, {QMI_FIXED_INTF(0x05c6, 0x9084, 4)}, + {QMI_QUIRK_SET_DTR(0x05c6, 0x9091, 2)}, /* Compal RXM-G1 */ {QMI_FIXED_INTF(0x05c6, 0x90b2, 3)}, /* ublox R410M */ + {QMI_QUIRK_SET_DTR(0x05c6, 0x90db, 2)}, /* Compal RXM-G1 */ {QMI_FIXED_INTF(0x05c6, 0x920d, 0)}, {QMI_FIXED_INTF(0x05c6, 0x920d, 5)}, {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */ @@ -1286,6 +1289,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x19d2, 0x0168, 4)}, {QMI_FIXED_INTF(0x19d2, 0x0176, 3)}, {QMI_FIXED_INTF(0x19d2, 0x0178, 3)}, + {QMI_FIXED_INTF(0x19d2, 0x0189, 4)}, /* ZTE MF290 */ {QMI_FIXED_INTF(0x19d2, 0x0191, 4)}, /* ZTE EuFi890 */ {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */ {QMI_FIXED_INTF(0x19d2, 0x0200, 1)}, @@ -1324,7 +1328,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x2001, 0x7e3d, 4)}, /* D-Link DWM-222 A2 */ {QMI_FIXED_INTF(0x2020, 0x2031, 4)}, /* Olicard 600 */ {QMI_FIXED_INTF(0x2020, 0x2033, 4)}, /* BroadMobi BM806U */ - {QMI_FIXED_INTF(0x2020, 0x2060, 4)}, /* BroadMobi BM818 */ + {QMI_QUIRK_SET_DTR(0x2020, 0x2060, 4)}, /* BroadMobi BM818 */ {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */ {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */ {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */ @@ -1351,26 +1355,47 @@ static const struct usb_device_id products[] = { {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */ {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 10)},/* Sierra Wireless EM74xx */ {QMI_QUIRK_SET_DTR(0x1199, 0x9091, 8)}, /* Sierra Wireless EM7565 */ + {QMI_QUIRK_SET_DTR(0x1199, 0xc081, 8)}, /* Sierra Wireless EM7590 */ {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */ {QMI_FIXED_INTF(0x1bbb, 0x0203, 2)}, /* Alcatel L800MA */ {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */ {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1031, 3)}, /* Telit LE910C1-EUX */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1034, 2)}, /* Telit LE910C4-WWX */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1037, 4)}, /* Telit LE910C4-WWX */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1038, 3)}, /* Telit LE910C4-WWX */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x103a, 0)}, /* Telit LE910C4-WWX */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1050, 2)}, /* Telit FN980 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1057, 2)}, /* Telit FN980 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1060, 2)}, /* Telit LN920 */ - {QMI_QUIRK_SET_DTR(0x1bc7, 0x1070, 2)}, /* Telit FN990 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1070, 2)}, /* Telit FN990A */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1077, 2)}, /* Telit FN990A w/audio */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1080, 2)}, /* Telit FE990A */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x10a0, 0)}, /* Telit FN920C04 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x10a4, 0)}, /* Telit FN920C04 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x10a9, 0)}, /* Telit FN920C04 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x10b0, 0)}, /* Telit FE990B */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x10c0, 0)}, /* Telit FE910C04 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x10c4, 0)}, /* Telit FE910C04 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x10c8, 0)}, /* Telit FE910C04 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x10d0, 0)}, /* Telit FN990B */ {QMI_FIXED_INTF(0x1bc7, 0x1100, 3)}, /* Telit ME910 */ {QMI_FIXED_INTF(0x1bc7, 0x1101, 3)}, /* Telit ME910 dual modem */ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1230, 2)}, /* Telit LE910Cx */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1250, 0)}, /* Telit LE910Cx */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1260, 2)}, /* Telit LE910Cx */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1261, 2)}, /* Telit LE910Cx */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1900, 1)}, /* Telit LN940 series */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x3000, 0)}, /* Telit FN912 series */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x3001, 0)}, /* Telit FN912 series */ {QMI_FIXED_INTF(0x1c9e, 0x9801, 3)}, /* Telewell TW-3G HSPA+ */ {QMI_FIXED_INTF(0x1c9e, 0x9803, 4)}, /* Telewell TW-3G HSPA+ */ {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */ + {QMI_QUIRK_SET_DTR(0x1c9e, 0x9b05, 4)}, /* Longsung U8300 */ + {QMI_QUIRK_SET_DTR(0x1c9e, 0x9b3c, 4)}, /* Longsung U9300 */ {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */ {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */ {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */ @@ -1387,6 +1412,9 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x1e2d, 0x0083, 4)}, /* Cinterion PHxx,PXxx (1 RmNet + USB Audio)*/ {QMI_QUIRK_SET_DTR(0x1e2d, 0x00b0, 4)}, /* Cinterion CLS8 */ {QMI_FIXED_INTF(0x1e2d, 0x00b7, 0)}, /* Cinterion MV31 RmNet */ + {QMI_FIXED_INTF(0x1e2d, 0x00b9, 0)}, /* Cinterion MV31 RmNet based on new baseline */ + {QMI_FIXED_INTF(0x1e2d, 0x00f3, 0)}, /* Cinterion MV32-W-A RmNet */ + {QMI_FIXED_INTF(0x1e2d, 0x00f4, 0)}, /* Cinterion MV32-W-B RmNet */ {QMI_FIXED_INTF(0x413c, 0x81a2, 8)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ {QMI_FIXED_INTF(0x413c, 0x81a3, 8)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ {QMI_FIXED_INTF(0x413c, 0x81a4, 8)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ @@ -1396,23 +1424,34 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x413c, 0x81b3, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */ {QMI_FIXED_INTF(0x413c, 0x81b6, 8)}, /* Dell Wireless 5811e */ {QMI_FIXED_INTF(0x413c, 0x81b6, 10)}, /* Dell Wireless 5811e */ + {QMI_FIXED_INTF(0x413c, 0x81c2, 8)}, /* Dell Wireless 5811e */ {QMI_FIXED_INTF(0x413c, 0x81cc, 8)}, /* Dell Wireless 5816e */ {QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */ {QMI_FIXED_INTF(0x413c, 0x81d7, 1)}, /* Dell Wireless 5821e preproduction config */ {QMI_FIXED_INTF(0x413c, 0x81e0, 0)}, /* Dell Wireless 5821e with eSIM support*/ + {QMI_FIXED_INTF(0x413c, 0x81e4, 0)}, /* Dell Wireless 5829e with eSIM support*/ + {QMI_FIXED_INTF(0x413c, 0x81e6, 0)}, /* Dell Wireless 5829e */ {QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ {QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */ {QMI_QUIRK_SET_DTR(0x22de, 0x9051, 2)}, /* Hucom Wireless HM-211S/K */ {QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */ {QMI_QUIRK_SET_DTR(0x1e0e, 0x9001, 5)}, /* SIMCom 7100E, 7230E, 7600E ++ */ + {QMI_QUIRK_SET_DTR(0x1e0e, 0x9071, 3)}, /* SIMCom 8230C ++ */ {QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)}, /* Quectel EC21 Mini PCIe */ {QMI_QUIRK_SET_DTR(0x2c7c, 0x0191, 4)}, /* Quectel EG91 */ {QMI_QUIRK_SET_DTR(0x2c7c, 0x0195, 4)}, /* Quectel EG95 */ {QMI_FIXED_INTF(0x2c7c, 0x0296, 4)}, /* Quectel BG96 */ + {QMI_QUIRK_SET_DTR(0x2c7c, 0x030e, 4)}, /* Quectel EM05GV2 */ + {QMI_QUIRK_SET_DTR(0x2c7c, 0x0316, 3)}, /* Quectel RG255C */ {QMI_QUIRK_SET_DTR(0x2cb7, 0x0104, 4)}, /* Fibocom NL678 series */ + {QMI_QUIRK_SET_DTR(0x2cb7, 0x0112, 0)}, /* Fibocom FG132 */ {QMI_FIXED_INTF(0x0489, 0xe0b4, 0)}, /* Foxconn T77W968 LTE */ {QMI_FIXED_INTF(0x0489, 0xe0b5, 0)}, /* Foxconn T77W968 LTE with eSIM support*/ {QMI_FIXED_INTF(0x2692, 0x9025, 4)}, /* Cellient MPL200 (rebranded Qualcomm 05c6:9025) */ + {QMI_QUIRK_SET_DTR(0x1546, 0x1312, 4)}, /* u-blox LARA-R6 01B */ + {QMI_QUIRK_SET_DTR(0x1546, 0x1342, 4)}, /* u-blox LARA-L6 */ + {QMI_QUIRK_SET_DTR(0x33f8, 0x0104, 4)}, /* Rolling RW101 RMNET */ + {QMI_FIXED_INTF(0x2dee, 0x4d22, 5)}, /* MeiG Smart SRM825L */ /* 4. Gobi 1000 devices */ {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index ee41088c5251..fa5192583860 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -10,6 +10,7 @@ #include <linux/etherdevice.h> #include <linux/mii.h> #include <linux/ethtool.h> +#include <linux/phy.h> #include <linux/usb.h> #include <linux/crc32.h> #include <linux/if_vlan.h> @@ -25,14 +26,15 @@ #include <linux/atomic.h> #include <linux/acpi.h> #include <linux/firmware.h> -#include <crypto/hash.h> +#include <crypto/sha2.h> #include <linux/usb/r8152.h> +#include <net/gso.h> /* Information for net-next */ #define NETNEXT_VERSION "12" /* Information for net */ -#define NET_VERSION "12" +#define NET_VERSION "13" #define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>" @@ -199,6 +201,7 @@ #define OCP_EEE_AR 0xa41a #define OCP_EEE_DATA 0xa41c #define OCP_PHY_STATUS 0xa420 +#define OCP_INTR_EN 0xa424 #define OCP_NCTL_CFG 0xa42c #define OCP_POWER_CFG 0xa430 #define OCP_EEE_CFG 0xa432 @@ -620,6 +623,9 @@ enum spd_duplex { #define PHY_STAT_LAN_ON 3 #define PHY_STAT_PWRDN 5 +/* OCP_INTR_EN */ +#define INTR_SPEED_FORCE BIT(3) + /* OCP_NCTL_CFG */ #define PGA_RETURN_EN BIT(1) @@ -759,7 +765,7 @@ enum rtl_register_content { /* rtl8152 flags */ enum rtl8152_flags { - RTL8152_UNPLUG = 0, + RTL8152_INACCESSIBLE = 0, RTL8152_SET_RX_MODE, WORK_ENABLE, RTL8152_LINK_CHG, @@ -768,10 +774,18 @@ enum rtl8152_flags { SCHEDULE_TASKLET, GREEN_ETHERNET, RX_EPROTO, + IN_PRE_RESET, + PROBED_WITH_NO_ERRORS, + PROBE_SHOULD_RETRY, }; +#define DEVICE_ID_LENOVO_USB_C_TRAVEL_HUB 0x721e +#define DEVICE_ID_THINKPAD_ONELINK_PLUS_DOCK 0x3054 #define DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2 0x3082 +#define DEVICE_ID_THINKPAD_USB_C_DONGLE 0x720c #define DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2 0xa387 +#define DEVICE_ID_THINKPAD_USB_C_DOCK_GEN3 0x3062 +#define DEVICE_ID_THINKPAD_HYBRID_USB_C_DOCK 0xa359 struct tally_counter { __le64 tx_packets; @@ -879,8 +893,8 @@ struct r8152 { void (*up)(struct r8152 *tp); void (*down)(struct r8152 *tp); void (*unload)(struct r8152 *tp); - int (*eee_get)(struct r8152 *tp, struct ethtool_eee *eee); - int (*eee_set)(struct r8152 *tp, struct ethtool_eee *eee); + int (*eee_get)(struct r8152 *tp, struct ethtool_keee *eee); + int (*eee_set)(struct r8152 *tp, struct ethtool_keee *eee); bool (*in_nway)(struct r8152 *tp); void (*hw_phy_cfg)(struct r8152 *tp); void (*autosuspend_en)(struct r8152 *tp, bool enable); @@ -944,6 +958,8 @@ struct r8152 { u8 version; u8 duplex; u8 autoneg; + + unsigned int reg_access_reset_count; }; /** @@ -1191,6 +1207,96 @@ static unsigned int agg_buf_sz = 16384; #define RTL_LIMITED_TSO_SIZE (size_to_mtu(agg_buf_sz) - sizeof(struct tx_desc)) +/* If register access fails then we block access and issue a reset. If this + * happens too many times in a row without a successful access then we stop + * trying to reset and just leave access blocked. + */ +#define REGISTER_ACCESS_MAX_RESETS 3 + +static void rtl_set_inaccessible(struct r8152 *tp) +{ + set_bit(RTL8152_INACCESSIBLE, &tp->flags); + smp_mb__after_atomic(); +} + +static void rtl_set_accessible(struct r8152 *tp) +{ + clear_bit(RTL8152_INACCESSIBLE, &tp->flags); + smp_mb__after_atomic(); +} + +static +int r8152_control_msg(struct r8152 *tp, unsigned int pipe, __u8 request, + __u8 requesttype, __u16 value, __u16 index, void *data, + __u16 size, const char *msg_tag) +{ + struct usb_device *udev = tp->udev; + int ret; + + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return -ENODEV; + + ret = usb_control_msg(udev, pipe, request, requesttype, + value, index, data, size, + USB_CTRL_GET_TIMEOUT); + + /* No need to issue a reset to report an error if the USB device got + * unplugged; just return immediately. + */ + if (ret == -ENODEV) + return ret; + + /* If the write was successful then we're done */ + if (ret >= 0) { + tp->reg_access_reset_count = 0; + return ret; + } + + dev_err(&udev->dev, + "Failed to %s %d bytes at %#06x/%#06x (%d)\n", + msg_tag, size, value, index, ret); + + /* Block all future register access until we reset. Much of the code + * in the driver doesn't check for errors. Notably, many parts of the + * driver do a read/modify/write of a register value without + * confirming that the read succeeded. Writing back modified garbage + * like this can fully wedge the adapter, requiring a power cycle. + */ + rtl_set_inaccessible(tp); + + /* If probe hasn't yet finished, then we'll request a retry of the + * whole probe routine if we get any control transfer errors. We + * never have to clear this bit since we free/reallocate the whole "tp" + * structure if we retry probe. + */ + if (!test_bit(PROBED_WITH_NO_ERRORS, &tp->flags)) { + set_bit(PROBE_SHOULD_RETRY, &tp->flags); + return ret; + } + + /* Failing to access registers in pre-reset is not surprising since we + * wouldn't be resetting if things were behaving normally. The register + * access we do in pre-reset isn't truly mandatory--we're just reusing + * the disable() function and trying to be nice by powering the + * adapter down before resetting it. Thus, if we're in pre-reset, + * we'll return right away and not try to queue up yet another reset. + * We know the post-reset is already coming. + */ + if (test_bit(IN_PRE_RESET, &tp->flags)) + return ret; + + if (tp->reg_access_reset_count < REGISTER_ACCESS_MAX_RESETS) { + usb_queue_reset_device(tp->intf); + tp->reg_access_reset_count++; + } else if (tp->reg_access_reset_count == REGISTER_ACCESS_MAX_RESETS) { + dev_err(&udev->dev, + "Tried to reset %d times; giving up.\n", + REGISTER_ACCESS_MAX_RESETS); + } + + return ret; +} + static int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data) { @@ -1201,9 +1307,10 @@ int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data) if (!tmp) return -ENOMEM; - ret = usb_control_msg(tp->udev, tp->pipe_ctrl_in, - RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, - value, index, tmp, size, 500); + ret = r8152_control_msg(tp, tp->pipe_ctrl_in, + RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, + value, index, tmp, size, "read"); + if (ret < 0) memset(data, 0xff, size); else @@ -1224,9 +1331,9 @@ int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data) if (!tmp) return -ENOMEM; - ret = usb_control_msg(tp->udev, tp->pipe_ctrl_out, - RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE, - value, index, tmp, size, 500); + ret = r8152_control_msg(tp, tp->pipe_ctrl_out, + RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE, + value, index, tmp, size, "write"); kfree(tmp); @@ -1235,10 +1342,8 @@ int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data) static void rtl_set_unplug(struct r8152 *tp) { - if (tp->udev->state == USB_STATE_NOTATTACHED) { - set_bit(RTL8152_UNPLUG, &tp->flags); - smp_mb__after_atomic(); - } + if (tp->udev->state == USB_STATE_NOTATTACHED) + rtl_set_inaccessible(tp); } static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size, @@ -1247,7 +1352,7 @@ static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size, u16 limit = 64; int ret = 0; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return -ENODEV; /* both size and indix must be 4 bytes align */ @@ -1291,7 +1396,7 @@ static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 byteen_start, byteen_end, byen; u16 limit = 512; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return -ENODEV; /* both size and indix must be 4 bytes align */ @@ -1305,16 +1410,24 @@ static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen, byteen_end = byteen & BYTE_EN_END_MASK; byen = byteen_start | (byteen_start << 4); - ret = set_registers(tp, index, type | byen, 4, data); - if (ret < 0) - goto error1; - index += 4; - data += 4; - size -= 4; + /* Split the first DWORD if the byte_en is not 0xff */ + if (byen != BYTE_EN_DWORD) { + ret = set_registers(tp, index, type | byen, 4, data); + if (ret < 0) + goto error1; - if (size) { + index += 4; + data += 4; size -= 4; + } + + if (size) { + byen = byteen_end | (byteen_end >> 4); + + /* Split the last DWORD if the byte_en is not 0xff */ + if (byen != BYTE_EN_DWORD) + size -= 4; while (size) { if (size > limit) { @@ -1341,10 +1454,9 @@ static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen, } } - byen = byteen_end | (byteen_end >> 4); - ret = set_registers(tp, index, type | byen, 4, data); - if (ret < 0) - goto error1; + /* Set the last DWORD */ + if (byen != BYTE_EN_DWORD) + ret = set_registers(tp, index, type | byen, 4, data); } error1: @@ -1521,7 +1633,7 @@ static int read_mii_word(struct net_device *netdev, int phy_id, int reg) struct r8152 *tp = netdev_priv(netdev); int ret; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return -ENODEV; if (phy_id != R8152_PHY_ID) @@ -1537,7 +1649,7 @@ void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val) { struct r8152 *tp = netdev_priv(netdev); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; if (phy_id != R8152_PHY_ID) @@ -1553,14 +1665,14 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u32 speed, u8 duplex, u32 advertising); -static int __rtl8152_set_mac_address(struct net_device *netdev, void *p, +static int __rtl8152_set_mac_address(struct net_device *netdev, + struct sockaddr_storage *addr, bool in_resume) { struct r8152 *tp = netdev_priv(netdev); - struct sockaddr *addr = p; int ret = -EADDRNOTAVAIL; - if (!is_valid_ether_addr(addr->sa_data)) + if (!is_valid_ether_addr(addr->__data)) goto out1; if (!in_resume) { @@ -1571,10 +1683,10 @@ static int __rtl8152_set_mac_address(struct net_device *netdev, void *p, mutex_lock(&tp->control); - eth_hw_addr_set(netdev, addr->sa_data); + eth_hw_addr_set(netdev, addr->__data); ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG); - pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data); + pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->__data); ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); mutex_unlock(&tp->control); @@ -1594,7 +1706,8 @@ static int rtl8152_set_mac_address(struct net_device *netdev, void *p) * host system provided MAC address. * Examples of this are Dell TB15 and Dell WD15 docks */ -static int vendor_mac_passthru_addr_read(struct r8152 *tp, struct sockaddr *sa) +static int vendor_mac_passthru_addr_read(struct r8152 *tp, + struct sockaddr_storage *ss) { acpi_status status; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -1662,46 +1775,48 @@ static int vendor_mac_passthru_addr_read(struct r8152 *tp, struct sockaddr *sa) ret = -EINVAL; goto amacout; } - memcpy(sa->sa_data, buf, 6); + memcpy(ss->__data, buf, 6); + tp->netdev->addr_assign_type = NET_ADDR_STOLEN; netif_info(tp, probe, tp->netdev, - "Using pass-thru MAC addr %pM\n", sa->sa_data); + "Using pass-thru MAC addr %pM\n", ss->__data); amacout: kfree(obj); return ret; } -static int determine_ethernet_addr(struct r8152 *tp, struct sockaddr *sa) +static int determine_ethernet_addr(struct r8152 *tp, + struct sockaddr_storage *ss) { struct net_device *dev = tp->netdev; int ret; - sa->sa_family = dev->type; + ss->ss_family = dev->type; - ret = eth_platform_get_mac_address(&tp->udev->dev, sa->sa_data); + ret = eth_platform_get_mac_address(&tp->udev->dev, ss->__data); if (ret < 0) { if (tp->version == RTL_VER_01) { - ret = pla_ocp_read(tp, PLA_IDR, 8, sa->sa_data); + ret = pla_ocp_read(tp, PLA_IDR, 8, ss->__data); } else { /* if device doesn't support MAC pass through this will * be expected to be non-zero */ - ret = vendor_mac_passthru_addr_read(tp, sa); + ret = vendor_mac_passthru_addr_read(tp, ss); if (ret < 0) ret = pla_ocp_read(tp, PLA_BACKUP, 8, - sa->sa_data); + ss->__data); } } if (ret < 0) { netif_err(tp, probe, dev, "Get ether addr fail\n"); - } else if (!is_valid_ether_addr(sa->sa_data)) { + } else if (!is_valid_ether_addr(ss->__data)) { netif_err(tp, probe, dev, "Invalid ether addr %pM\n", - sa->sa_data); + ss->__data); eth_hw_addr_random(dev); - ether_addr_copy(sa->sa_data, dev->dev_addr); + ether_addr_copy(ss->__data, dev->dev_addr); netif_info(tp, probe, dev, "Random ether addr %pM\n", - sa->sa_data); + ss->__data); return 0; } @@ -1711,17 +1826,17 @@ static int determine_ethernet_addr(struct r8152 *tp, struct sockaddr *sa) static int set_ethernet_addr(struct r8152 *tp, bool in_resume) { struct net_device *dev = tp->netdev; - struct sockaddr sa; + struct sockaddr_storage ss; int ret; - ret = determine_ethernet_addr(tp, &sa); + ret = determine_ethernet_addr(tp, &ss); if (ret < 0) return ret; if (tp->version == RTL_VER_01) - eth_hw_addr_set(dev, sa.sa_data); + eth_hw_addr_set(dev, ss.__data); else - ret = __rtl8152_set_mac_address(dev, &sa, in_resume); + ret = __rtl8152_set_mac_address(dev, &ss, in_resume); return ret; } @@ -1742,7 +1857,7 @@ static void read_bulk_callback(struct urb *urb) if (!tp) return; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; if (!test_bit(WORK_ENABLE, &tp->flags)) @@ -1834,7 +1949,7 @@ static void write_bulk_callback(struct urb *urb) if (!test_bit(WORK_ENABLE, &tp->flags)) return; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; if (!skb_queue_empty(&tp->tx_queue)) @@ -1855,7 +1970,7 @@ static void intr_callback(struct urb *urb) if (!test_bit(WORK_ENABLE, &tp->flags)) return; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; switch (status) { @@ -1871,7 +1986,9 @@ static void intr_callback(struct urb *urb) "Stop submitting intr, status %d\n", status); return; case -EOVERFLOW: - netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n"); + if (net_ratelimit()) + netif_info(tp, intr, tp->netdev, + "intr status -EOVERFLOW\n"); goto resubmit; /* -EPIPE: should clear the halt */ default: @@ -1937,7 +2054,7 @@ static struct rx_agg *alloc_rx_agg(struct r8152 *tp, gfp_t mflags) if (!rx_agg) return NULL; - rx_agg->page = alloc_pages(mflags | __GFP_COMP, order); + rx_agg->page = alloc_pages(mflags | __GFP_COMP | __GFP_NOWARN, order); if (!rx_agg->page) goto free_rx; @@ -2154,7 +2271,7 @@ static inline void rtl_rx_vlan_tag(struct rx_desc *desc, struct sk_buff *skb) } static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, - struct sk_buff *skb, u32 len, u32 transport_offset) + struct sk_buff *skb, u32 len) { u32 mss = skb_shinfo(skb)->gso_size; u32 opts1, opts2 = 0; @@ -2165,6 +2282,8 @@ static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, opts1 = len | TX_FS | TX_LS; if (mss) { + u32 transport_offset = (u32)skb_transport_offset(skb); + if (transport_offset > GTTCPHO_MAX) { netif_warn(tp, tx_err, tp->netdev, "Invalid transport offset 0x%x for TSO\n", @@ -2195,6 +2314,7 @@ static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, opts1 |= transport_offset << GTTCPHO_SHIFT; opts2 |= min(mss, MSS_MAX) << MSS_SHIFT; } else if (skb->ip_summed == CHECKSUM_PARTIAL) { + u32 transport_offset = (u32)skb_transport_offset(skb); u8 ip_protocol; if (transport_offset > TCPHO_MAX) { @@ -2258,7 +2378,6 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg) struct tx_desc *tx_desc; struct sk_buff *skb; unsigned int len; - u32 offset; skb = __skb_dequeue(&skb_head); if (!skb) @@ -2274,9 +2393,7 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg) tx_data = tx_agg_align(tx_data); tx_desc = (struct tx_desc *)tx_data; - offset = (u32)skb_transport_offset(skb); - - if (r8152_tx_csum(tp, tx_desc, skb, skb->len, offset)) { + if (r8152_tx_csum(tp, tx_desc, skb, skb->len)) { r8152_csum_workaround(tp, skb, &skb_head); continue; } @@ -2431,7 +2548,7 @@ static int rx_bottom(struct r8152 *tp, int budget) } } - if (list_empty(&tp->rx_done)) + if (list_empty(&tp->rx_done) || work_done >= budget) goto out1; clear_bit(RX_EPROTO, &tp->flags); @@ -2447,6 +2564,15 @@ static int rx_bottom(struct r8152 *tp, int budget) struct urb *urb; u8 *rx_data; + /* A bulk transfer of USB may contain may packets, so the + * total packets may more than the budget. Deal with all + * packets in current bulk transfer, and stop to handle the + * next bulk transfer until next schedule, if budget is + * exhausted. + */ + if (work_done >= budget) + break; + list_del_init(cursor); agg = list_entry(cursor, struct rx_agg, list); @@ -2463,12 +2589,11 @@ static int rx_bottom(struct r8152 *tp, int budget) while (urb->actual_length > len_used) { struct net_device *netdev = tp->netdev; struct net_device_stats *stats = &netdev->stats; - unsigned int pkt_len, rx_frag_head_sz; + unsigned int pkt_len, rx_frag_head_sz, len; struct sk_buff *skb; + bool use_frags; - /* limit the skb numbers for rx_queue */ - if (unlikely(skb_queue_len(&tp->rx_queue) >= 1000)) - break; + WARN_ON_ONCE(skb_queue_len(&tp->rx_queue) >= 1000); pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK; if (pkt_len < ETH_ZLEN) @@ -2479,45 +2604,77 @@ static int rx_bottom(struct r8152 *tp, int budget) break; pkt_len -= ETH_FCS_LEN; + len = pkt_len; rx_data += sizeof(struct rx_desc); - if (!agg_free || tp->rx_copybreak > pkt_len) - rx_frag_head_sz = pkt_len; + if (!agg_free || tp->rx_copybreak > len) + use_frags = false; else - rx_frag_head_sz = tp->rx_copybreak; + use_frags = true; + + if (use_frags) { + /* If the budget is exhausted, the packet + * would be queued in the driver. That is, + * napi_gro_frags() wouldn't be called, so + * we couldn't use napi_get_frags(). + */ + if (work_done >= budget) { + rx_frag_head_sz = tp->rx_copybreak; + skb = napi_alloc_skb(napi, + rx_frag_head_sz); + } else { + rx_frag_head_sz = 0; + skb = napi_get_frags(napi); + } + } else { + rx_frag_head_sz = 0; + skb = napi_alloc_skb(napi, len); + } - skb = napi_alloc_skb(napi, rx_frag_head_sz); if (!skb) { stats->rx_dropped++; goto find_next_rx; } skb->ip_summed = r8152_rx_csum(tp, rx_desc); - memcpy(skb->data, rx_data, rx_frag_head_sz); - skb_put(skb, rx_frag_head_sz); - pkt_len -= rx_frag_head_sz; - rx_data += rx_frag_head_sz; - if (pkt_len) { + rtl_rx_vlan_tag(rx_desc, skb); + + if (use_frags) { + if (rx_frag_head_sz) { + memcpy(skb->data, rx_data, + rx_frag_head_sz); + skb_put(skb, rx_frag_head_sz); + len -= rx_frag_head_sz; + rx_data += rx_frag_head_sz; + skb->protocol = eth_type_trans(skb, + netdev); + } + skb_add_rx_frag(skb, 0, agg->page, agg_offset(agg, rx_data), - pkt_len, - SKB_DATA_ALIGN(pkt_len)); + len, SKB_DATA_ALIGN(len)); get_page(agg->page); + } else { + memcpy(skb->data, rx_data, len); + skb_put(skb, len); + skb->protocol = eth_type_trans(skb, netdev); } - skb->protocol = eth_type_trans(skb, netdev); - rtl_rx_vlan_tag(rx_desc, skb); if (work_done < budget) { + if (use_frags) + napi_gro_frags(napi); + else + napi_gro_receive(napi, skb); + work_done++; stats->rx_packets++; - stats->rx_bytes += skb->len; - napi_gro_receive(napi, skb); + stats->rx_bytes += pkt_len; } else { __skb_queue_tail(&tp->rx_queue, skb); } find_next_rx: - rx_data = rx_agg_align(rx_data + pkt_len + ETH_FCS_LEN); + rx_data = rx_agg_align(rx_data + len + ETH_FCS_LEN); rx_desc = (struct rx_desc *)rx_data; len_used = agg_offset(agg, rx_data); len_used += sizeof(struct rx_desc); @@ -2546,9 +2703,10 @@ submit: } } + /* Splice the remained list back to rx_done for next schedule */ if (!list_empty(&rx_queue)) { spin_lock_irqsave(&tp->rx_lock, flags); - list_splice_tail(&rx_queue, &tp->rx_done); + list_splice(&rx_queue, &tp->rx_done); spin_unlock_irqrestore(&tp->rx_lock, flags); } @@ -2597,7 +2755,7 @@ static void bottom_half(struct tasklet_struct *t) { struct r8152 *tp = from_tasklet(tp, t, tx_tl); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; if (!test_bit(WORK_ENABLE, &tp->flags)) @@ -2618,6 +2776,9 @@ static int r8152_poll(struct napi_struct *napi, int budget) struct r8152 *tp = container_of(napi, struct r8152, napi); int work_done; + if (!budget) + return 0; + work_done = rx_bottom(tp, budget); if (work_done < budget) { @@ -2637,7 +2798,7 @@ int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags) int ret; /* The rx would be stopped, so skip submitting */ - if (test_bit(RTL8152_UNPLUG, &tp->flags) || + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags) || !test_bit(WORK_ENABLE, &tp->flags) || !netif_carrier_ok(tp->netdev)) return 0; @@ -2724,22 +2885,26 @@ static void _rtl8152_set_rx_mode(struct net_device *netdev) ocp_data |= RCR_AM | RCR_AAP; mc_filter[1] = 0xffffffff; mc_filter[0] = 0xffffffff; - } else if ((netdev_mc_count(netdev) > multicast_filter_limit) || - (netdev->flags & IFF_ALLMULTI)) { + } else if ((netdev->flags & IFF_MULTICAST && + netdev_mc_count(netdev) > multicast_filter_limit) || + (netdev->flags & IFF_ALLMULTI)) { /* Too many to filter perfectly -- accept all multicasts. */ ocp_data |= RCR_AM; mc_filter[1] = 0xffffffff; mc_filter[0] = 0xffffffff; } else { - struct netdev_hw_addr *ha; - mc_filter[1] = 0; mc_filter[0] = 0; - netdev_for_each_mc_addr(ha, netdev) { - int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26; - mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); - ocp_data |= RCR_AM; + if (netdev->flags & IFF_MULTICAST) { + struct netdev_hw_addr *ha; + + netdev_for_each_mc_addr(ha, netdev) { + int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26; + + mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); + ocp_data |= RCR_AM; + } } } @@ -2757,9 +2922,9 @@ rtl8152_features_check(struct sk_buff *skb, struct net_device *dev, { u32 mss = skb_shinfo(skb)->gso_size; int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX; - int offset = skb_transport_offset(skb); - if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset) + if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && + skb_transport_offset(skb) > max_offset) features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz) features &= ~NETIF_F_GSO_MASK; @@ -2840,6 +3005,8 @@ static void rtl8152_nic_reset(struct r8152 *tp) ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST); for (i = 0; i < 1000; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + break; if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST)) break; usleep_range(100, 400); @@ -3013,12 +3180,16 @@ static int rtl_enable(struct r8152 *tp) ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data); switch (tp->version) { - case RTL_VER_08: - case RTL_VER_09: - case RTL_VER_14: - r8153b_rx_agg_chg_indicate(tp); + case RTL_VER_01: + case RTL_VER_02: + case RTL_VER_03: + case RTL_VER_04: + case RTL_VER_05: + case RTL_VER_06: + case RTL_VER_07: break; default: + r8153b_rx_agg_chg_indicate(tp); break; } @@ -3029,7 +3200,7 @@ static int rtl_enable(struct r8152 *tp) static int rtl8152_enable(struct r8152 *tp) { - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return -ENODEV; set_tx_qlen(tp); @@ -3072,7 +3243,6 @@ static void r8153_set_rx_early_timeout(struct r8152 *tp) 640 / 8); ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EXTRA_AGGR_TMR, ocp_data); - r8153b_rx_agg_chg_indicate(tp); break; default: @@ -3106,7 +3276,6 @@ static void r8153_set_rx_early_size(struct r8152 *tp) case RTL_VER_15: ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, ocp_data / 8); - r8153b_rx_agg_chg_indicate(tp); break; default: WARN_ON_ONCE(1); @@ -3118,7 +3287,7 @@ static int rtl8153_enable(struct r8152 *tp) { u32 ocp_data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return -ENODEV; set_tx_qlen(tp); @@ -3150,7 +3319,7 @@ static void rtl_disable(struct r8152 *tp) u32 ocp_data; int i; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) { rtl_drop_queued_tx(tp); return; } @@ -3167,6 +3336,8 @@ static void rtl_disable(struct r8152 *tp) rxdy_gated_en(tp, true); for (i = 0; i < 1000; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + break; ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY) break; @@ -3174,6 +3345,8 @@ static void rtl_disable(struct r8152 *tp) } for (i = 0; i < 1000; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + break; if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY) break; usleep_range(1000, 2000); @@ -3604,7 +3777,7 @@ static u16 r8153_phy_status(struct r8152 *tp, u16 desired) } msleep(20); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) break; } @@ -3636,6 +3809,8 @@ static void r8153b_ups_en(struct r8152 *tp, bool enable) int i; for (i = 0; i < 500; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) & AUTOLOAD_DONE) break; @@ -3676,6 +3851,8 @@ static void r8153c_ups_en(struct r8152 *tp, bool enable) int i; for (i = 0; i < 500; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) & AUTOLOAD_DONE) break; @@ -3954,29 +4131,10 @@ static void rtl_reset_bmu(struct r8152 *tp) /* Clear the bp to stop the firmware before loading a new one */ static void rtl_clear_bp(struct r8152 *tp, u16 type) { - switch (tp->version) { - case RTL_VER_01: - case RTL_VER_02: - case RTL_VER_07: - break; - case RTL_VER_03: - case RTL_VER_04: - case RTL_VER_05: - case RTL_VER_06: - ocp_write_byte(tp, type, PLA_BP_EN, 0); - break; - case RTL_VER_14: - ocp_write_word(tp, type, USB_BP2_EN, 0); + u16 bp[16] = {0}; + u16 bp_num; - ocp_write_word(tp, type, USB_BP_8, 0); - ocp_write_word(tp, type, USB_BP_9, 0); - ocp_write_word(tp, type, USB_BP_10, 0); - ocp_write_word(tp, type, USB_BP_11, 0); - ocp_write_word(tp, type, USB_BP_12, 0); - ocp_write_word(tp, type, USB_BP_13, 0); - ocp_write_word(tp, type, USB_BP_14, 0); - ocp_write_word(tp, type, USB_BP_15, 0); - break; + switch (tp->version) { case RTL_VER_08: case RTL_VER_09: case RTL_VER_10: @@ -3984,32 +4142,31 @@ static void rtl_clear_bp(struct r8152 *tp, u16 type) case RTL_VER_12: case RTL_VER_13: case RTL_VER_15: - default: if (type == MCU_TYPE_USB) { ocp_write_word(tp, MCU_TYPE_USB, USB_BP2_EN, 0); - - ocp_write_word(tp, MCU_TYPE_USB, USB_BP_8, 0); - ocp_write_word(tp, MCU_TYPE_USB, USB_BP_9, 0); - ocp_write_word(tp, MCU_TYPE_USB, USB_BP_10, 0); - ocp_write_word(tp, MCU_TYPE_USB, USB_BP_11, 0); - ocp_write_word(tp, MCU_TYPE_USB, USB_BP_12, 0); - ocp_write_word(tp, MCU_TYPE_USB, USB_BP_13, 0); - ocp_write_word(tp, MCU_TYPE_USB, USB_BP_14, 0); - ocp_write_word(tp, MCU_TYPE_USB, USB_BP_15, 0); - } else { - ocp_write_byte(tp, MCU_TYPE_PLA, PLA_BP_EN, 0); + bp_num = 16; + break; } + fallthrough; + case RTL_VER_03: + case RTL_VER_04: + case RTL_VER_05: + case RTL_VER_06: + ocp_write_byte(tp, type, PLA_BP_EN, 0); + fallthrough; + case RTL_VER_01: + case RTL_VER_02: + case RTL_VER_07: + bp_num = 8; + break; + case RTL_VER_14: + default: + ocp_write_word(tp, type, USB_BP2_EN, 0); + bp_num = 16; break; } - ocp_write_word(tp, type, PLA_BP_0, 0); - ocp_write_word(tp, type, PLA_BP_1, 0); - ocp_write_word(tp, type, PLA_BP_2, 0); - ocp_write_word(tp, type, PLA_BP_3, 0); - ocp_write_word(tp, type, PLA_BP_4, 0); - ocp_write_word(tp, type, PLA_BP_5, 0); - ocp_write_word(tp, type, PLA_BP_6, 0); - ocp_write_word(tp, type, PLA_BP_7, 0); + generic_ocp_write(tp, PLA_BP_0, BYTE_EN_DWORD, bp_num << 1, bp, type); /* wait 3 ms to make sure the firmware is stopped */ usleep_range(3000, 6000); @@ -4039,6 +4196,9 @@ static int rtl_phy_patch_request(struct r8152 *tp, bool request, bool wait) for (i = 0; wait && i < 5000; i++) { u32 ocp_data; + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return -ENODEV; + usleep_range(1000, 2000); ocp_data = ocp_reg_read(tp, OCP_PHY_PATCH_STAT); if ((ocp_data & PATCH_READY) ^ check) @@ -4470,48 +4630,16 @@ out: static long rtl8152_fw_verify_checksum(struct r8152 *tp, struct fw_header *fw_hdr, size_t size) { - unsigned char checksum[sizeof(fw_hdr->checksum)]; - struct crypto_shash *alg; - struct shash_desc *sdesc; - size_t len; - long rc; - - alg = crypto_alloc_shash("sha256", 0, 0); - if (IS_ERR(alg)) { - rc = PTR_ERR(alg); - goto out; - } - - if (crypto_shash_digestsize(alg) != sizeof(fw_hdr->checksum)) { - rc = -EFAULT; - dev_err(&tp->intf->dev, "digestsize incorrect (%u)\n", - crypto_shash_digestsize(alg)); - goto free_shash; - } - - len = sizeof(*sdesc) + crypto_shash_descsize(alg); - sdesc = kmalloc(len, GFP_KERNEL); - if (!sdesc) { - rc = -ENOMEM; - goto free_shash; - } - sdesc->tfm = alg; + u8 checksum[sizeof(fw_hdr->checksum)]; - len = size - sizeof(fw_hdr->checksum); - rc = crypto_shash_digest(sdesc, fw_hdr->version, len, checksum); - kfree(sdesc); - if (rc) - goto free_shash; + BUILD_BUG_ON(sizeof(checksum) != SHA256_DIGEST_SIZE); + sha256(fw_hdr->version, size - sizeof(checksum), checksum); - if (memcmp(fw_hdr->checksum, checksum, sizeof(fw_hdr->checksum))) { + if (memcmp(fw_hdr->checksum, checksum, sizeof(checksum))) { dev_err(&tp->intf->dev, "checksum fail\n"); - rc = -EFAULT; + return -EFAULT; } - -free_shash: - crypto_free_shash(alg); -out: - return rc; + return 0; } static long rtl8152_check_firmware(struct r8152 *tp, struct rtl_fw *rtl_fw) @@ -4983,10 +5111,9 @@ static void rtl8152_fw_phy_nc_apply(struct r8152 *tp, struct fw_phy_nc *phy) static void rtl8152_fw_mac_apply(struct r8152 *tp, struct fw_mac *mac) { - u16 bp_en_addr, bp_index, type, bp_num, fw_ver_reg; + u16 bp_en_addr, type, fw_ver_reg; u32 length; u8 *data; - int i; switch (__le32_to_cpu(mac->blk_hdr.type)) { case RTL_FW_PLA: @@ -5022,17 +5149,22 @@ static void rtl8152_fw_mac_apply(struct r8152 *tp, struct fw_mac *mac) data = (u8 *)mac; data += __le16_to_cpu(mac->fw_offset); - generic_ocp_write(tp, __le16_to_cpu(mac->fw_reg), 0xff, length, data, - type); + if (generic_ocp_write(tp, __le16_to_cpu(mac->fw_reg), 0xff, length, + data, type) < 0) { + dev_err(&tp->intf->dev, "Write %s fw fail\n", + type ? "PLA" : "USB"); + return; + } ocp_write_word(tp, type, __le16_to_cpu(mac->bp_ba_addr), __le16_to_cpu(mac->bp_ba_value)); - bp_index = __le16_to_cpu(mac->bp_start); - bp_num = __le16_to_cpu(mac->bp_num); - for (i = 0; i < bp_num; i++) { - ocp_write_word(tp, type, bp_index, __le16_to_cpu(mac->bp[i])); - bp_index += 2; + if (generic_ocp_write(tp, __le16_to_cpu(mac->bp_start), BYTE_EN_DWORD, + ALIGN(__le16_to_cpu(mac->bp_num) << 1, 4), + mac->bp, type) < 0) { + dev_err(&tp->intf->dev, "Write %s bp fail\n", + type ? "PLA" : "USB"); + return; } bp_en_addr = __le16_to_cpu(mac->bp_en_addr); @@ -5123,7 +5255,7 @@ post_fw: rtl_reset_ocp_base(tp); strscpy(rtl_fw->version, fw_hdr->version, RTL_VER_SIZE); - dev_info(&tp->intf->dev, "load %s successfully\n", rtl_fw->version); + dev_dbg(&tp->intf->dev, "load %s successfully\n", rtl_fw->version); } static void rtl8152_release_firmware(struct r8152 *tp) @@ -5355,6 +5487,8 @@ static void wait_oob_link_list_ready(struct r8152 *tp) int i; for (i = 0; i < 1000; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + break; ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); if (ocp_data & LINK_LIST_READY) break; @@ -5369,6 +5503,8 @@ static void r8156b_wait_loading_flash(struct r8152 *tp) int i; for (i = 0; i < 100; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + break; if (ocp_read_word(tp, MCU_TYPE_USB, USB_GPHY_CTRL) & GPHY_PATCH_DONE) break; usleep_range(1000, 2000); @@ -5491,6 +5627,8 @@ static int r8153_pre_firmware_1(struct r8152 *tp) for (i = 0; i < 104; i++) { u32 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_WDT1_CTRL); + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return -ENODEV; if (!(ocp_data & WTD1_EN)) break; usleep_range(1000, 2000); @@ -5647,6 +5785,8 @@ static void r8153_aldps_en(struct r8152 *tp, bool enable) data &= ~EN_ALDPS; ocp_reg_write(tp, OCP_POWER_CFG, data); for (i = 0; i < 20; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; usleep_range(1000, 2000); if (ocp_read_word(tp, MCU_TYPE_PLA, 0xe000) & 0x0100) break; @@ -5904,6 +6044,11 @@ static void r8153_enter_oob(struct r8152 *tp) ocp_data &= ~NOW_IS_OOB; ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); + /* RX FIFO settings for OOB */ + ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB); + rtl_disable(tp); rtl_reset_bmu(tp); @@ -5915,7 +6060,8 @@ static void r8153_enter_oob(struct r8152 *tp) wait_oob_link_list_ready(tp); - ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, mtu_to_size(tp->netdev->mtu)); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, 1522); + ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_DEFAULT); switch (tp->version) { case RTL_VER_03: @@ -5951,6 +6097,10 @@ static void r8153_enter_oob(struct r8152 *tp) ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB; ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); + ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7); + ocp_data |= MCU_BORW_EN; + ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data); + rxdy_gated_en(tp, false); ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); @@ -5966,14 +6116,34 @@ static void rtl8153_disable(struct r8152 *tp) r8153_aldps_en(tp, true); } +static u32 fc_pause_on_auto(struct r8152 *tp) +{ + return (ALIGN(mtu_to_size(tp->netdev->mtu), 1024) + 6 * 1024); +} + +static u32 fc_pause_off_auto(struct r8152 *tp) +{ + return (ALIGN(mtu_to_size(tp->netdev->mtu), 1024) + 14 * 1024); +} + +static void r8156_fc_parameter(struct r8152 *tp) +{ + u32 pause_on = tp->fc_pause_on ? tp->fc_pause_on : fc_pause_on_auto(tp); + u32 pause_off = tp->fc_pause_off ? tp->fc_pause_off : fc_pause_off_auto(tp); + + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_FULL, pause_on / 16); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_EMPTY, pause_off / 16); +} + static int rtl8156_enable(struct r8152 *tp) { u32 ocp_data; u16 speed; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return -ENODEV; + r8156_fc_parameter(tp); set_tx_qlen(tp); rtl_set_eee_plus(tp); r8153_set_rx_early_timeout(tp); @@ -6005,15 +6175,30 @@ static int rtl8156_enable(struct r8152 *tp) ocp_write_word(tp, MCU_TYPE_USB, USB_L1_CTRL, ocp_data); } + ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_TASK); + ocp_data &= ~FC_PATCH_TASK; + ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data); + usleep_range(1000, 2000); + ocp_data |= FC_PATCH_TASK; + ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data); + return rtl_enable(tp); } +static void rtl8156_disable(struct r8152 *tp) +{ + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_FULL, 0); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_EMPTY, 0); + + rtl8153_disable(tp); +} + static int rtl8156b_enable(struct r8152 *tp) { u32 ocp_data; u16 speed; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return -ENODEV; set_tx_qlen(tp); @@ -6199,7 +6384,7 @@ out: static void rtl8152_up(struct r8152 *tp) { - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8152_aldps_en(tp, false); @@ -6209,7 +6394,7 @@ static void rtl8152_up(struct r8152 *tp) static void rtl8152_down(struct r8152 *tp) { - if (test_bit(RTL8152_UNPLUG, &tp->flags)) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) { rtl_drop_queued_tx(tp); return; } @@ -6224,7 +6409,7 @@ static void rtl8153_up(struct r8152 *tp) { u32 ocp_data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153_u1u2en(tp, false); @@ -6264,7 +6449,7 @@ static void rtl8153_down(struct r8152 *tp) { u32 ocp_data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) { rtl_drop_queued_tx(tp); return; } @@ -6285,7 +6470,7 @@ static void rtl8153b_up(struct r8152 *tp) { u32 ocp_data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153b_u1u2en(tp, false); @@ -6309,7 +6494,7 @@ static void rtl8153b_down(struct r8152 *tp) { u32 ocp_data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) { rtl_drop_queued_tx(tp); return; } @@ -6346,7 +6531,7 @@ static void rtl8153c_up(struct r8152 *tp) { u32 ocp_data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153b_u1u2en(tp, false); @@ -6409,38 +6594,6 @@ static void rtl8153c_up(struct r8152 *tp) r8153b_u1u2en(tp, true); } -static inline u32 fc_pause_on_auto(struct r8152 *tp) -{ - return (ALIGN(mtu_to_size(tp->netdev->mtu), 1024) + 6 * 1024); -} - -static inline u32 fc_pause_off_auto(struct r8152 *tp) -{ - return (ALIGN(mtu_to_size(tp->netdev->mtu), 1024) + 14 * 1024); -} - -static void r8156_fc_parameter(struct r8152 *tp) -{ - u32 pause_on = tp->fc_pause_on ? tp->fc_pause_on : fc_pause_on_auto(tp); - u32 pause_off = tp->fc_pause_off ? tp->fc_pause_off : fc_pause_off_auto(tp); - - switch (tp->version) { - case RTL_VER_10: - case RTL_VER_11: - ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_FULL, pause_on / 8); - ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_EMPTY, pause_off / 8); - break; - case RTL_VER_12: - case RTL_VER_13: - case RTL_VER_15: - ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_FULL, pause_on / 16); - ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_EMPTY, pause_off / 16); - break; - default: - break; - } -} - static void rtl8156_change_mtu(struct r8152 *tp) { u32 rx_max_size = mtu_to_size(tp->netdev->mtu); @@ -6459,7 +6612,7 @@ static void rtl8156_up(struct r8152 *tp) { u32 ocp_data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153b_u1u2en(tp, false); @@ -6532,7 +6685,7 @@ static void rtl8156_down(struct r8152 *tp) { u32 ocp_data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) { rtl_drop_queued_tx(tp); return; } @@ -6550,9 +6703,17 @@ static void rtl8156_down(struct r8152 *tp) ocp_data &= ~NOW_IS_OOB; ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); + /* RX FIFO settings for OOB */ + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_FULL, 64 / 16); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_FULL, 1024 / 16); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_EMPTY, 4096 / 16); + rtl_disable(tp); rtl_reset_bmu(tp); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, 1522); + ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_DEFAULT); + /* Clear teredo wake event. bit[15:8] is the teredo wakeup * type. Set it to zero. bits[7:0] are the W1C bits about * the events. Set them to all 1 to clear them. @@ -6563,6 +6724,10 @@ static void rtl8156_down(struct r8152 *tp) ocp_data |= NOW_IS_OOB; ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data); + ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7); + ocp_data |= MCU_BORW_EN; + ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data); + rtl_rx_vlan_en(tp, true); rxdy_gated_en(tp, false); @@ -6658,7 +6823,7 @@ static void rtl_work_func_t(struct work_struct *work) /* If the device is unplugged or !netif_running(), the workqueue * doesn't need to wake the device, and could return directly. */ - if (test_bit(RTL8152_UNPLUG, &tp->flags) || !netif_running(tp->netdev)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags) || !netif_running(tp->netdev)) return; if (usb_autopm_get_interface(tp->intf) < 0) @@ -6697,7 +6862,7 @@ static void rtl_hw_phy_work_func_t(struct work_struct *work) { struct r8152 *tp = container_of(work, struct r8152, hw_phy_work.work); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; if (usb_autopm_get_interface(tp->intf) < 0) @@ -6824,7 +6989,7 @@ static int rtl8152_close(struct net_device *netdev) netif_stop_queue(netdev); res = usb_autopm_get_interface(tp->intf); - if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) { + if (res < 0 || test_bit(RTL8152_INACCESSIBLE, &tp->flags)) { rtl_drop_queued_tx(tp); rtl_stop_rx(tp); } else { @@ -6857,7 +7022,7 @@ static void r8152b_init(struct r8152 *tp) u32 ocp_data; u16 data; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; data = r8152_mdio_read(tp, MII_BMCR); @@ -6901,7 +7066,7 @@ static void r8153_init(struct r8152 *tp) u16 data; int i; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153_u1u2en(tp, false); @@ -6912,7 +7077,7 @@ static void r8153_init(struct r8152 *tp) break; msleep(20); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) break; } @@ -7041,7 +7206,7 @@ static void r8153b_init(struct r8152 *tp) u16 data; int i; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153b_u1u2en(tp, false); @@ -7052,7 +7217,7 @@ static void r8153b_init(struct r8152 *tp) break; msleep(20); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) break; } @@ -7123,7 +7288,7 @@ static void r8153c_init(struct r8152 *tp) u16 data; int i; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153b_u1u2en(tp, false); @@ -7143,7 +7308,7 @@ static void r8153c_init(struct r8152 *tp) break; msleep(20); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; } @@ -7519,6 +7684,11 @@ static void r8156_hw_phy_cfg(struct r8152 *tp) ((swap_a & 0x1f) << 8) | ((swap_a >> 8) & 0x1f)); } + + /* Notify the MAC when the speed is changed to force mode. */ + data = ocp_reg_read(tp, OCP_INTR_EN); + data |= INTR_SPEED_FORCE; + ocp_reg_write(tp, OCP_INTR_EN, data); break; default: break; @@ -7914,6 +8084,11 @@ static void r8156b_hw_phy_cfg(struct r8152 *tp) break; } + /* Notify the MAC when the speed is changed to force mode. */ + data = ocp_reg_read(tp, OCP_INTR_EN); + data |= INTR_SPEED_FORCE; + ocp_reg_write(tp, OCP_INTR_EN, data); + if (rtl_phy_patch_request(tp, true, true)) return; @@ -7962,7 +8137,7 @@ static void r8156_init(struct r8152 *tp) u16 data; int i; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_ECM_OP); @@ -7983,7 +8158,7 @@ static void r8156_init(struct r8152 *tp) break; msleep(20); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; } @@ -8058,7 +8233,7 @@ static void r8156b_init(struct r8152 *tp) u16 data; int i; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_ECM_OP); @@ -8092,7 +8267,7 @@ static void r8156b_init(struct r8152 *tp) break; msleep(20); - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; } @@ -8213,49 +8388,14 @@ static bool rtl_check_vendor_ok(struct usb_interface *intf) return true; } -static bool rtl_vendor_mode(struct usb_interface *intf) -{ - struct usb_host_interface *alt = intf->cur_altsetting; - struct usb_device *udev; - struct usb_host_config *c; - int i, num_configs; - - if (alt->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) - return rtl_check_vendor_ok(intf); - - /* The vendor mode is not always config #1, so to find it out. */ - udev = interface_to_usbdev(intf); - c = udev->config; - num_configs = udev->descriptor.bNumConfigurations; - if (num_configs < 2) - return false; - - for (i = 0; i < num_configs; (i++, c++)) { - struct usb_interface_descriptor *desc = NULL; - - if (c->desc.bNumInterfaces > 0) - desc = &c->intf_cache[0]->altsetting->desc; - else - continue; - - if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC) { - usb_driver_set_configuration(udev, c->desc.bConfigurationValue); - break; - } - } - - if (i == num_configs) - dev_err(&intf->dev, "Unexpected Device\n"); - - return false; -} - static int rtl8152_pre_reset(struct usb_interface *intf) { struct r8152 *tp = usb_get_intfdata(intf); struct net_device *netdev; - if (!tp) + rtnl_lock(); + + if (!tp || !test_bit(PROBED_WITH_NO_ERRORS, &tp->flags)) return 0; netdev = tp->netdev; @@ -8270,7 +8410,9 @@ static int rtl8152_pre_reset(struct usb_interface *intf) napi_disable(&tp->napi); if (netif_carrier_ok(netdev)) { mutex_lock(&tp->control); + set_bit(IN_PRE_RESET, &tp->flags); tp->rtl_ops.disable(tp); + clear_bit(IN_PRE_RESET, &tp->flags); mutex_unlock(&tp->control); } @@ -8281,21 +8423,20 @@ static int rtl8152_post_reset(struct usb_interface *intf) { struct r8152 *tp = usb_get_intfdata(intf); struct net_device *netdev; - struct sockaddr sa; + struct sockaddr_storage ss; - if (!tp) - return 0; + if (!tp || !test_bit(PROBED_WITH_NO_ERRORS, &tp->flags)) + goto exit; + + rtl_set_accessible(tp); /* reset the MAC address in case of policy change */ - if (determine_ethernet_addr(tp, &sa) >= 0) { - rtnl_lock(); - dev_set_mac_address (tp->netdev, &sa, NULL); - rtnl_unlock(); - } + if (determine_ethernet_addr(tp, &ss) >= 0) + dev_set_mac_address(tp->netdev, &ss, NULL); netdev = tp->netdev; if (!netif_running(netdev)) - return 0; + goto exit; set_bit(WORK_ENABLE, &tp->flags); if (netif_carrier_ok(netdev)) { @@ -8314,6 +8455,8 @@ static int rtl8152_post_reset(struct usb_interface *intf) if (!list_empty(&tp->rx_done)) napi_schedule(&tp->napi); +exit: + rtnl_unlock(); return 0; } @@ -8392,6 +8535,19 @@ static int rtl8152_system_resume(struct r8152 *tp) usb_submit_urb(tp->intr_urb, GFP_NOIO); } + /* If the device is RTL8152_INACCESSIBLE here then we should do a + * reset. This is important because the usb_lock_device_for_reset() + * that happens as a result of usb_queue_reset_device() will silently + * fail if the device was suspended or if too much time passed. + * + * NOTE: The device is locked here so we can directly do the reset. + * We don't need usb_lock_device_for_reset() because that's just a + * wrapper over device_lock() and device_resume() (which calls us) + * does that for us. + */ + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + usb_reset_device(tp->udev); + return 0; } @@ -8472,6 +8628,13 @@ static int rtl8152_system_suspend(struct r8152 *tp) tasklet_enable(&tp->tx_tl); } + /* If we're inaccessible here then some of the work that we did to + * get the adapter ready for suspend didn't work. Queue up a wakeup + * event so we can try again. + */ + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + pm_wakeup_event(&tp->udev->dev, 0); + return 0; } @@ -8590,11 +8753,11 @@ static void rtl8152_get_drvinfo(struct net_device *netdev, { struct r8152 *tp = netdev_priv(netdev); - strlcpy(info->driver, MODULENAME, sizeof(info->driver)); - strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); + strscpy(info->driver, MODULENAME, sizeof(info->driver)); + strscpy(info->version, DRIVER_VERSION, sizeof(info->version)); usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info)); if (!IS_ERR_OR_NULL(tp->rtl_fw.fw)) - strlcpy(info->fw_version, tp->rtl_fw.version, + strscpy(info->fw_version, tp->rtl_fw.version, sizeof(info->fw_version)); } @@ -8761,32 +8924,31 @@ static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data) } } -static int r8152_get_eee(struct r8152 *tp, struct ethtool_eee *eee) +static int r8152_get_eee(struct r8152 *tp, struct ethtool_keee *eee) { - u32 lp, adv, supported = 0; + __ETHTOOL_DECLARE_LINK_MODE_MASK(common); u16 val; val = r8152_mmd_read(tp, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE); - supported = mmd_eee_cap_to_ethtool_sup_t(val); + mii_eee_cap1_mod_linkmode_t(eee->supported, val); val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV); - adv = mmd_eee_adv_to_ethtool_adv_t(val); + mii_eee_cap1_mod_linkmode_t(eee->advertised, val); val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE); - lp = mmd_eee_adv_to_ethtool_adv_t(val); + mii_eee_cap1_mod_linkmode_t(eee->lp_advertised, val); eee->eee_enabled = tp->eee_en; - eee->eee_active = !!(supported & adv & lp); - eee->supported = supported; - eee->advertised = tp->eee_adv; - eee->lp_advertised = lp; + + linkmode_and(common, eee->advertised, eee->lp_advertised); + eee->eee_active = phy_check_valid(tp->speed, tp->duplex, common); return 0; } -static int r8152_set_eee(struct r8152 *tp, struct ethtool_eee *eee) +static int r8152_set_eee(struct r8152 *tp, struct ethtool_keee *eee) { - u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised); + u16 val = linkmode_to_mii_eee_cap1_t(eee->advertised); tp->eee_en = eee->eee_enabled; tp->eee_adv = val; @@ -8796,31 +8958,30 @@ static int r8152_set_eee(struct r8152 *tp, struct ethtool_eee *eee) return 0; } -static int r8153_get_eee(struct r8152 *tp, struct ethtool_eee *eee) +static int r8153_get_eee(struct r8152 *tp, struct ethtool_keee *eee) { - u32 lp, adv, supported = 0; + __ETHTOOL_DECLARE_LINK_MODE_MASK(common); u16 val; val = ocp_reg_read(tp, OCP_EEE_ABLE); - supported = mmd_eee_cap_to_ethtool_sup_t(val); + mii_eee_cap1_mod_linkmode_t(eee->supported, val); val = ocp_reg_read(tp, OCP_EEE_ADV); - adv = mmd_eee_adv_to_ethtool_adv_t(val); + mii_eee_cap1_mod_linkmode_t(eee->advertised, val); val = ocp_reg_read(tp, OCP_EEE_LPABLE); - lp = mmd_eee_adv_to_ethtool_adv_t(val); + mii_eee_cap1_mod_linkmode_t(eee->lp_advertised, val); eee->eee_enabled = tp->eee_en; - eee->eee_active = !!(supported & adv & lp); - eee->supported = supported; - eee->advertised = tp->eee_adv; - eee->lp_advertised = lp; + + linkmode_and(common, eee->advertised, eee->lp_advertised); + eee->eee_active = phy_check_valid(tp->speed, tp->duplex, common); return 0; } static int -rtl_ethtool_get_eee(struct net_device *net, struct ethtool_eee *edata) +rtl_ethtool_get_eee(struct net_device *net, struct ethtool_keee *edata) { struct r8152 *tp = netdev_priv(net); int ret; @@ -8847,7 +9008,7 @@ out: } static int -rtl_ethtool_set_eee(struct net_device *net, struct ethtool_eee *edata) +rtl_ethtool_set_eee(struct net_device *net, struct ethtool_keee *edata) { struct r8152 *tp = netdev_priv(net); int ret; @@ -9150,6 +9311,7 @@ static const struct ethtool_ops ops = { .set_ringparam = rtl8152_set_ringparam, .get_pauseparam = rtl8152_get_pauseparam, .set_pauseparam = rtl8152_set_pauseparam, + .get_ts_info = ethtool_op_get_ts_info, }; static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) @@ -9158,7 +9320,7 @@ static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) struct mii_ioctl_data *data = if_mii(rq); int res; - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return -ENODEV; res = usb_autopm_get_interface(tp->intf); @@ -9205,7 +9367,7 @@ static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) case RTL_VER_01: case RTL_VER_02: case RTL_VER_07: - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); return 0; default: break; @@ -9217,7 +9379,7 @@ static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) mutex_lock(&tp->control); - dev->mtu = new_mtu; + WRITE_ONCE(dev->mtu, new_mtu); if (netif_running(dev)) { if (tp->rtl_ops.change_mtu) @@ -9260,7 +9422,7 @@ static const struct net_device_ops rtl8152_netdev_ops = { static void rtl8152_unload(struct r8152 *tp) { - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; if (tp->version != RTL_VER_01) @@ -9269,7 +9431,7 @@ static void rtl8152_unload(struct r8152 *tp) static void rtl8153_unload(struct r8152 *tp) { - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153_power_cut_en(tp, false); @@ -9277,7 +9439,7 @@ static void rtl8153_unload(struct r8152 *tp) static void rtl8153b_unload(struct r8152 *tp) { - if (test_bit(RTL8152_UNPLUG, &tp->flags)) + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) return; r8153b_power_cut_en(tp, false); @@ -9358,7 +9520,7 @@ static int rtl_ops_init(struct r8152 *tp) case RTL_VER_10: ops->init = r8156_init; ops->enable = rtl8156_enable; - ops->disable = rtl8153_disable; + ops->disable = rtl8156_disable; ops->up = rtl8156_up; ops->down = rtl8156_down; ops->unload = rtl8153_unload; @@ -9481,23 +9643,35 @@ static int rtl_fw_init(struct r8152 *tp) return 0; } -u8 rtl8152_get_version(struct usb_interface *intf) +static u8 __rtl_get_hw_ver(struct usb_device *udev) { - struct usb_device *udev = interface_to_usbdev(intf); u32 ocp_data = 0; __le32 *tmp; u8 version; int ret; + int i; tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) return 0; - ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), - RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, - PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp), 500); - if (ret > 0) - ocp_data = (__le32_to_cpu(*tmp) >> 16) & VERSION_MASK; + /* Retry up to 3 times in case there is a transitory error. We do this + * since retrying a read of the version is always safe and this + * function doesn't take advantage of r8152_control_msg(). + */ + for (i = 0; i < 3; i++) { + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, + PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp), + USB_CTRL_GET_TIMEOUT); + if (ret > 0) { + ocp_data = (__le32_to_cpu(*tmp) >> 16) & VERSION_MASK; + break; + } + } + + if (i != 0 && ret > 0) + dev_warn(&udev->dev, "Needed %d retries to read version\n", i); kfree(tmp); @@ -9552,31 +9726,59 @@ u8 rtl8152_get_version(struct usb_interface *intf) break; default: version = RTL_VER_UNKNOWN; - dev_info(&intf->dev, "Unknown version 0x%04x\n", ocp_data); + dev_info(&udev->dev, "Unknown version 0x%04x\n", ocp_data); break; } + return version; +} + +u8 rtl8152_get_version(struct usb_interface *intf) +{ + u8 version; + + version = __rtl_get_hw_ver(interface_to_usbdev(intf)); + dev_dbg(&intf->dev, "Detected version 0x%04x\n", version); return version; } EXPORT_SYMBOL_GPL(rtl8152_get_version); -static int rtl8152_probe(struct usb_interface *intf, - const struct usb_device_id *id) +static bool rtl8152_supports_lenovo_macpassthru(struct usb_device *udev) +{ + int parent_vendor_id = le16_to_cpu(udev->parent->descriptor.idVendor); + int product_id = le16_to_cpu(udev->descriptor.idProduct); + int vendor_id = le16_to_cpu(udev->descriptor.idVendor); + + if (vendor_id == VENDOR_ID_LENOVO) { + switch (product_id) { + case DEVICE_ID_LENOVO_USB_C_TRAVEL_HUB: + case DEVICE_ID_THINKPAD_ONELINK_PLUS_DOCK: + case DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2: + case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2: + case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN3: + case DEVICE_ID_THINKPAD_USB_C_DONGLE: + case DEVICE_ID_THINKPAD_HYBRID_USB_C_DOCK: + return 1; + } + } else if (vendor_id == VENDOR_ID_REALTEK && parent_vendor_id == VENDOR_ID_LENOVO) { + switch (product_id) { + case 0x8153: + return 1; + } + } + return 0; +} + +static int rtl8152_probe_once(struct usb_interface *intf, + const struct usb_device_id *id, u8 version) { struct usb_device *udev = interface_to_usbdev(intf); - u8 version = rtl8152_get_version(intf); struct r8152 *tp; struct net_device *netdev; int ret; - if (version == RTL_VER_UNKNOWN) - return -ENODEV; - - if (!rtl_vendor_mode(intf)) - return -ENODEV; - usb_reset_device(udev); netdev = alloc_etherdev(sizeof(struct r8152)); if (!netdev) { @@ -9642,13 +9844,7 @@ static int rtl8152_probe(struct usb_interface *intf, netdev->hw_features &= ~NETIF_F_RXCSUM; } - if (le16_to_cpu(udev->descriptor.idVendor) == VENDOR_ID_LENOVO) { - switch (le16_to_cpu(udev->descriptor.idProduct)) { - case DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2: - case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2: - tp->lenovo_macpassthru = 1; - } - } + tp->lenovo_macpassthru = rtl8152_supports_lenovo_macpassthru(udev); if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && udev->serial && (!strcmp(udev->serial, "000001000000") || @@ -9658,7 +9854,7 @@ static int rtl8152_probe(struct usb_interface *intf, } netdev->ethtool_ops = &ops; - netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE); + netif_set_tso_max_size(netdev, RTL_LIMITED_TSO_SIZE); /* MTU range: 68 - 1500 or 9194 */ netdev->min_mtu = ETH_MIN_MTU; @@ -9732,10 +9928,7 @@ static int rtl8152_probe(struct usb_interface *intf, usb_set_intfdata(intf, tp); - if (tp->support_2500full) - netif_napi_add(netdev, &tp->napi, r8152_poll, 256); - else - netif_napi_add(netdev, &tp->napi, r8152_poll, 64); + netif_napi_add(netdev, &tp->napi, r8152_poll); ret = register_netdev(netdev); if (ret != 0) { @@ -9748,18 +9941,68 @@ static int rtl8152_probe(struct usb_interface *intf, else device_set_wakeup_enable(&udev->dev, false); + /* If we saw a control transfer error while probing then we may + * want to try probe() again. Consider this an error. + */ + if (test_bit(PROBE_SHOULD_RETRY, &tp->flags)) + goto out2; + + set_bit(PROBED_WITH_NO_ERRORS, &tp->flags); netif_info(tp, probe, netdev, "%s\n", DRIVER_VERSION); return 0; +out2: + unregister_netdev(netdev); + out1: tasklet_kill(&tp->tx_tl); + cancel_delayed_work_sync(&tp->hw_phy_work); + if (tp->rtl_ops.unload) + tp->rtl_ops.unload(tp); + rtl8152_release_firmware(tp); usb_set_intfdata(intf, NULL); out: + if (test_bit(PROBE_SHOULD_RETRY, &tp->flags)) + ret = -EAGAIN; + free_netdev(netdev); return ret; } +#define RTL8152_PROBE_TRIES 3 + +static int rtl8152_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + u8 version; + int ret; + int i; + + if (intf->cur_altsetting->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC) + return -ENODEV; + + if (!rtl_check_vendor_ok(intf)) + return -ENODEV; + + version = rtl8152_get_version(intf); + if (version == RTL_VER_UNKNOWN) + return -ENODEV; + + for (i = 0; i < RTL8152_PROBE_TRIES; i++) { + ret = rtl8152_probe_once(intf, id, version); + if (ret != -EAGAIN) + break; + } + if (ret == -EAGAIN) { + dev_err(&intf->dev, + "r8152 failed probe after %d tries; giving up\n", i); + return -ENODEV; + } + + return ret; +} + static void rtl8152_disconnect(struct usb_interface *intf) { struct r8152 *tp = usb_get_intfdata(intf); @@ -9778,41 +10021,44 @@ static void rtl8152_disconnect(struct usb_interface *intf) } } -#define REALTEK_USB_DEVICE(vend, prod) { \ - USB_DEVICE_INTERFACE_CLASS(vend, prod, USB_CLASS_VENDOR_SPEC), \ -}, \ -{ \ - USB_DEVICE_AND_INTERFACE_INFO(vend, prod, USB_CLASS_COMM, \ - USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), \ -} - /* table of devices that work with this driver */ static const struct usb_device_id rtl8152_table[] = { /* Realtek */ - REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8050), - REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8053), - REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152), - REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153), - REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8155), - REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8156), + { USB_DEVICE(VENDOR_ID_REALTEK, 0x8050) }, + { USB_DEVICE(VENDOR_ID_REALTEK, 0x8053) }, + { USB_DEVICE(VENDOR_ID_REALTEK, 0x8152) }, + { USB_DEVICE(VENDOR_ID_REALTEK, 0x8153) }, + { USB_DEVICE(VENDOR_ID_REALTEK, 0x8155) }, + { USB_DEVICE(VENDOR_ID_REALTEK, 0x8156) }, /* Microsoft */ - REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07ab), - REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07c6), - REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x0927), - REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x304f), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x3062), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x3069), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x3082), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7205), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x720c), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7214), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x721e), - REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0xa387), - REALTEK_USB_DEVICE(VENDOR_ID_LINKSYS, 0x0041), - REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff), - REALTEK_USB_DEVICE(VENDOR_ID_TPLINK, 0x0601), + { USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07ab) }, + { USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07c6) }, + { USB_DEVICE(VENDOR_ID_MICROSOFT, 0x0927) }, + { USB_DEVICE(VENDOR_ID_MICROSOFT, 0x0c5e) }, + { USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101) }, + + /* Lenovo */ + { USB_DEVICE(VENDOR_ID_LENOVO, 0x304f) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x3054) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x3062) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x3069) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x3082) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x3098) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x7205) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x720c) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x7214) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0x721e) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0xa359) }, + { USB_DEVICE(VENDOR_ID_LENOVO, 0xa387) }, + + { USB_DEVICE(VENDOR_ID_LINKSYS, 0x0041) }, + { USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff) }, + { USB_DEVICE(VENDOR_ID_TPLINK, 0x0601) }, + { USB_DEVICE(VENDOR_ID_TPLINK, 0x0602) }, + { USB_DEVICE(VENDOR_ID_DLINK, 0xb301) }, + { USB_DEVICE(VENDOR_ID_DELL, 0xb097) }, + { USB_DEVICE(VENDOR_ID_ASUS, 0x1976) }, {} }; @@ -9832,7 +10078,67 @@ static struct usb_driver rtl8152_driver = { .disable_hub_initiated_lpm = 1, }; -module_usb_driver(rtl8152_driver); +static int rtl8152_cfgselector_choose_configuration(struct usb_device *udev) +{ + struct usb_host_config *c; + int i, num_configs; + + /* Switch the device to vendor mode, if and only if the vendor mode + * driver supports it. + */ + if (__rtl_get_hw_ver(udev) == RTL_VER_UNKNOWN) + return -ENODEV; + + /* The vendor mode is not always config #1, so to find it out. */ + c = udev->config; + num_configs = udev->descriptor.bNumConfigurations; + for (i = 0; i < num_configs; (i++, c++)) { + struct usb_interface_descriptor *desc = NULL; + + if (!c->desc.bNumInterfaces) + continue; + desc = &c->intf_cache[0]->altsetting->desc; + if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC) + break; + } + + if (i == num_configs) + return -ENODEV; + + return c->desc.bConfigurationValue; +} + +static struct usb_device_driver rtl8152_cfgselector_driver = { + .name = MODULENAME "-cfgselector", + .choose_configuration = rtl8152_cfgselector_choose_configuration, + .id_table = rtl8152_table, + .generic_subclass = 1, + .supports_autosuspend = 1, +}; + +static int __init rtl8152_driver_init(void) +{ + int ret; + + ret = usb_register_device_driver(&rtl8152_cfgselector_driver, THIS_MODULE); + if (ret) + return ret; + + ret = usb_register(&rtl8152_driver); + if (ret) + usb_deregister_device_driver(&rtl8152_cfgselector_driver); + + return ret; +} + +static void __exit rtl8152_driver_exit(void) +{ + usb_deregister(&rtl8152_driver); + usb_deregister_device_driver(&rtl8152_cfgselector_driver); +} + +module_init(rtl8152_driver_init); +module_exit(rtl8152_driver_exit); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); diff --git a/drivers/net/usb/r8153_ecm.c b/drivers/net/usb/r8153_ecm.c index 20b2df8d74ae..8d860dacdf49 100644 --- a/drivers/net/usb/r8153_ecm.c +++ b/drivers/net/usb/r8153_ecm.c @@ -135,6 +135,12 @@ static const struct usb_device_id products[] = { USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&r8153_info, }, +/* Lenovo ThinkPad Hybrid USB-C with USB-A Dock (40af0135eu, based on Realtek RTL8153) */ +{ + USB_DEVICE_AND_INTERFACE_INFO(VENDOR_ID_LENOVO, 0xa359, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&r8153_info, +}, { }, /* END */ }; diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c index 247f58cb0f84..7b3739b29c8f 100644 --- a/drivers/net/usb/rndis_host.c +++ b/drivers/net/usb/rndis_host.c @@ -255,7 +255,8 @@ static int rndis_query(struct usbnet *dev, struct usb_interface *intf, off = le32_to_cpu(u.get_c->offset); len = le32_to_cpu(u.get_c->len); - if (unlikely((8 + off + len) > CONTROL_BUFFER_SIZE)) + if (unlikely((off > CONTROL_BUFFER_SIZE - 8) || + (len > CONTROL_BUFFER_SIZE - 8 - off))) goto response_error; if (*reply_len != -1 && len != *reply_len) @@ -333,7 +334,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags) net->hard_header_len += sizeof (struct rndis_data_hdr); dev->hard_mtu = net->mtu + net->hard_header_len; - dev->maxpacket = usb_maxpacket(dev->udev, dev->out, 1); + dev->maxpacket = usb_maxpacket(dev->udev, dev->out); if (dev->maxpacket == 0) { netif_dbg(dev, probe, dev->net, "dev->maxpacket can't be 0\n"); @@ -418,10 +419,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags) goto halt_fail_and_release; } - if (bp[0] & 0x02) - eth_hw_addr_random(net); - else - eth_hw_addr_set(net, bp); + eth_hw_addr_set(net, bp); /* set a nonzero filter to enable data transfers */ memset(u.set, 0, sizeof *u.set); @@ -463,6 +461,16 @@ static int rndis_bind(struct usbnet *dev, struct usb_interface *intf) return generic_rndis_bind(dev, intf, FLAG_RNDIS_PHYM_NOT_WIRELESS); } +static int zte_rndis_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int status = rndis_bind(dev, intf); + + if (!status && (dev->net->dev_addr[0] & 0x02)) + eth_hw_addr_random(dev->net); + + return status; +} + void rndis_unbind(struct usbnet *dev, struct usb_interface *intf) { struct rndis_halt *halt; @@ -485,10 +493,14 @@ EXPORT_SYMBOL_GPL(rndis_unbind); */ int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb) { + bool dst_mac_fixup; + /* This check is no longer done by usbnet */ if (skb->len < dev->net->hard_header_len) return 0; + dst_mac_fixup = !!(dev->driver_info->data & RNDIS_DRIVER_DATA_DST_MAC_FIXUP); + /* peripheral may have batched packets to us... */ while (likely(skb->len)) { struct rndis_data_hdr *hdr = (void *)skb->data; @@ -523,10 +535,17 @@ int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb) break; skb_pull(skb, msg_len - sizeof *hdr); skb_trim(skb2, data_len); + + if (unlikely(dst_mac_fixup)) + usbnet_cdc_zte_rx_fixup(dev, skb2); + usbnet_skb_return(dev, skb2); } /* caller will usbnet_skb_return the remaining packet */ + if (unlikely(dst_mac_fixup)) + usbnet_cdc_zte_rx_fixup(dev, skb); + return 1; } EXPORT_SYMBOL_GPL(rndis_rx_fixup); @@ -600,6 +619,17 @@ static const struct driver_info rndis_poll_status_info = { .tx_fixup = rndis_tx_fixup, }; +static const struct driver_info zte_rndis_info = { + .description = "ZTE RNDIS device", + .flags = FLAG_ETHER | FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT, + .data = RNDIS_DRIVER_DATA_DST_MAC_FIXUP, + .bind = zte_rndis_bind, + .unbind = rndis_unbind, + .status = rndis_status, + .rx_fixup = rndis_rx_fixup, + .tx_fixup = rndis_tx_fixup, +}; + /*-------------------------------------------------------------------------*/ static const struct usb_device_id products [] = { @@ -614,6 +644,16 @@ static const struct usb_device_id products [] = { USB_CLASS_COMM, 2 /* ACM */, 0x0ff), .driver_info = (unsigned long)&rndis_info, }, { + /* ZTE WWAN modules */ + USB_VENDOR_AND_INTERFACE_INFO(0x19d2, + USB_CLASS_WIRELESS_CONTROLLER, 1, 3), + .driver_info = (unsigned long)&zte_rndis_info, +}, { + /* ZTE WWAN modules, ACM flavour */ + USB_VENDOR_AND_INTERFACE_INFO(0x19d2, + USB_CLASS_COMM, 2 /* ACM */, 0x0ff), + .driver_info = (unsigned long)&zte_rndis_info, +}, { /* RNDIS is MSFT's un-official variant of CDC ACM */ USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff), .driver_info = (unsigned long) &rndis_info, diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c index 3d2bf2acca94..278e6cb6f4d9 100644 --- a/drivers/net/usb/rtl8150.c +++ b/drivers/net/usb/rtl8150.c @@ -71,6 +71,14 @@ #define MSR_SPEED (1<<3) #define MSR_LINK (1<<2) +/* USB endpoints */ +enum rtl8150_usb_ep { + RTL8150_USB_EP_CONTROL = 0, + RTL8150_USB_EP_BULK_IN = 1, + RTL8150_USB_EP_BULK_OUT = 2, + RTL8150_USB_EP_INT_IN = 3, +}; + /* Interrupt pipe data */ #define INT_TSR 0x00 #define INT_RSR 0x01 @@ -656,7 +664,6 @@ static void rtl8150_set_multicast(struct net_device *netdev) rtl8150_t *dev = netdev_priv(netdev); u16 rx_creg = 0x9e; - netif_stop_queue(netdev); if (netdev->flags & IFF_PROMISC) { rx_creg |= 0x0001; dev_info(&netdev->dev, "%s: promiscuous mode\n", netdev->name); @@ -670,7 +677,6 @@ static void rtl8150_set_multicast(struct net_device *netdev) rx_creg &= 0x00fc; } async_set_registers(dev, RCR, sizeof(rx_creg), rx_creg); - netif_wake_queue(netdev); } static netdev_tx_t rtl8150_start_xmit(struct sk_buff *skb, @@ -679,9 +685,16 @@ static netdev_tx_t rtl8150_start_xmit(struct sk_buff *skb, rtl8150_t *dev = netdev_priv(netdev); int count, res; + /* pad the frame and ensure terminating USB packet, datasheet 9.2.3 */ + count = max(skb->len, ETH_ZLEN); + if (count % 64 == 0) + count++; + if (skb_padto(skb, count)) { + netdev->stats.tx_dropped++; + return NETDEV_TX_OK; + } + netif_stop_queue(netdev); - count = (skb->len < 60) ? 60 : skb->len; - count = (count & 0x3f) ? count : count + 1; dev->tx_skb = skb; usb_fill_bulk_urb(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2), skb->data, count, write_bulk_callback, dev); @@ -769,8 +782,8 @@ static void rtl8150_get_drvinfo(struct net_device *netdev, struct ethtool_drvinf { rtl8150_t *dev = netdev_priv(netdev); - strlcpy(info->driver, driver_name, sizeof(info->driver)); - strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); + strscpy(info->driver, driver_name, sizeof(info->driver)); + strscpy(info->version, DRIVER_VERSION, sizeof(info->version)); usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); } @@ -778,7 +791,8 @@ static int rtl8150_get_link_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *ecmd) { rtl8150_t *dev = netdev_priv(netdev); - short lpa, bmcr; + short lpa = 0; + short bmcr = 0; u32 supported; supported = (SUPPORTED_10baseT_Half | @@ -866,6 +880,13 @@ static int rtl8150_probe(struct usb_interface *intf, struct usb_device *udev = interface_to_usbdev(intf); rtl8150_t *dev; struct net_device *netdev; + static const u8 bulk_ep_addr[] = { + RTL8150_USB_EP_BULK_IN | USB_DIR_IN, + RTL8150_USB_EP_BULK_OUT | USB_DIR_OUT, + 0}; + static const u8 int_ep_addr[] = { + RTL8150_USB_EP_INT_IN | USB_DIR_IN, + 0}; netdev = alloc_etherdev(sizeof(rtl8150_t)); if (!netdev) @@ -879,6 +900,13 @@ static int rtl8150_probe(struct usb_interface *intf, return -ENOMEM; } + /* Verify that all required endpoints are present */ + if (!usb_check_bulk_endpoints(intf, bulk_ep_addr) || + !usb_check_int_endpoints(intf, int_ep_addr)) { + dev_err(&intf->dev, "couldn't find required endpoints\n"); + goto out; + } + tasklet_setup(&dev->tl, rx_fixup); spin_lock_init(&dev->rx_pool_lock); diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c index bb4cbe8fc846..36c73db44f77 100644 --- a/drivers/net/usb/sierra_net.c +++ b/drivers/net/usb/sierra_net.c @@ -30,7 +30,7 @@ static const char driver_name[] = "sierra_net"; #include <linux/usb/cdc.h> #include <net/ip.h> #include <net/udp.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/usb/usbnet.h> #define SWI_USB_REQUEST_GET_FW_ATTR 0x06 @@ -522,7 +522,7 @@ static void sierra_net_kevent(struct work_struct *work) " stopping sync timer", hh.msgspecific.byte); /* Got sync resp - stop timer & clear mask */ - del_timer_sync(&priv->sync_timer); + timer_delete_sync(&priv->sync_timer); clear_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags); break; @@ -573,7 +573,7 @@ static void sierra_net_defer_kevent(struct usbnet *dev, int work) */ static void sierra_sync_timer(struct timer_list *t) { - struct sierra_net_data *priv = from_timer(priv, t, sync_timer); + struct sierra_net_data *priv = timer_container_of(priv, t, sync_timer); struct usbnet *dev = priv->usbnet; dev_dbg(&dev->udev->dev, "%s", __func__); @@ -612,8 +612,8 @@ static void sierra_net_get_drvinfo(struct net_device *net, { /* Inherit standard device info */ usbnet_get_drvinfo(net, info); - strlcpy(info->driver, driver_name, sizeof(info->driver)); - strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); + strscpy(info->driver, driver_name, sizeof(info->driver)); + strscpy(info->version, DRIVER_VERSION, sizeof(info->version)); } static u32 sierra_net_get_link(struct net_device *net) @@ -689,6 +689,10 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf) status); return -ENODEV; } + if (!dev->status) { + dev_err(&dev->udev->dev, "No status endpoint found"); + return -ENODEV; + } /* Initialize sierra private data */ priv = kzalloc(sizeof *priv, GFP_KERNEL); if (!priv) @@ -759,7 +763,7 @@ static void sierra_net_unbind(struct usbnet *dev, struct usb_interface *intf) dev_dbg(&dev->udev->dev, "%s", __func__); /* kill the timer and work */ - del_timer_sync(&priv->sync_timer); + timer_shutdown_sync(&priv->sync_timer); cancel_work_sync(&priv->sierra_net_kevent); /* tell modem we are going away */ diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 95de452ff4da..78c821349f48 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -61,11 +61,6 @@ struct smsc75xx_priv { u8 suspend_flags; }; -struct usb_context { - struct usb_ctrlrequest req; - struct usbnet *dev; -}; - static bool turbo_mode = true; module_param(turbo_mode, bool, 0644); MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction"); @@ -90,7 +85,9 @@ static int __must_check __smsc75xx_read_reg(struct usbnet *dev, u32 index, ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, index, &buf, 4); - if (unlikely(ret < 0)) { + if (unlikely(ret < 4)) { + ret = ret < 0 ? ret : -ENODATA; + netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n", index, ret); return ret; @@ -2200,6 +2197,13 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) size = (rx_cmd_a & RX_CMD_A_LEN) - RXW_PADDING; align_count = (4 - ((size + RXW_PADDING) % 4)) % 4; + if (unlikely(size > skb->len)) { + netif_dbg(dev, rx_err, dev->net, + "size err rx_cmd_a=0x%08x\n", + rx_cmd_a); + return 0; + } + if (unlikely(rx_cmd_a & RX_CMD_A_RED)) { netif_dbg(dev, rx_err, dev->net, "Error rx_cmd_a=0x%08x\n", rx_cmd_a); @@ -2225,27 +2229,23 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) rx_cmd_b); skb_trim(skb, skb->len - 4); /* remove fcs */ - skb->truesize = size + sizeof(struct sk_buff); return 1; } - ax_skb = skb_clone(skb, GFP_ATOMIC); + /* Use "size - 4" to remove fcs */ + ax_skb = netdev_alloc_skb_ip_align(dev->net, size - 4); if (unlikely(!ax_skb)) { netdev_warn(dev->net, "Error allocating skb\n"); return 0; } - ax_skb->len = size; - ax_skb->data = packet; - skb_set_tail_pointer(ax_skb, size); + skb_put(ax_skb, size - 4); + memcpy(ax_skb->data, packet, size - 4); smsc75xx_rx_csum_offload(dev, ax_skb, rx_cmd_a, rx_cmd_b); - skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */ - ax_skb->truesize = size + sizeof(struct sk_buff); - usbnet_skb_return(dev, ax_skb); } diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index bc1e3dd67c04..de733e0488bf 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -18,8 +18,12 @@ #include <linux/usb/usbnet.h> #include <linux/slab.h> #include <linux/of_net.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> #include <linux/mdio.h> #include <linux/phy.h> +#include <net/selftests.h> + #include "smsc95xx.h" #define SMSC_CHIPNAME "smsc95xx" @@ -51,32 +55,42 @@ #define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \ SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3) +#define SMSC95XX_NR_IRQS (1) /* raise to 12 for GPIOs */ +#define PHY_HWIRQ (SMSC95XX_NR_IRQS - 1) + struct smsc95xx_priv { u32 mac_cr; u32 hash_hi; u32 hash_lo; u32 wolopts; + bool pause_rx; + bool pause_tx; + bool pause_autoneg; spinlock_t mac_cr_lock; u8 features; u8 suspend_flags; + bool is_internal_phy; + struct irq_chip irqchip; + struct irq_domain *irqdomain; + struct fwnode_handle *irqfwnode; struct mii_bus *mdiobus; struct phy_device *phydev; + struct task_struct *pm_task; }; static bool turbo_mode = true; module_param(turbo_mode, bool, 0644); MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction"); -static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, - u32 *data, int in_pm) +static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index, + u32 *data) { + struct smsc95xx_priv *pdata = dev->driver_priv; u32 buf; int ret; int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16); - BUG_ON(!dev); - - if (!in_pm) + if (current != pdata->pm_task) fn = usbnet_read_cmd; else fn = usbnet_read_cmd_nopm; @@ -84,9 +98,12 @@ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, index, &buf, 4); - if (unlikely(ret < 0)) { - netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n", - index, ret); + if (ret < 4) { + ret = ret < 0 ? ret : -ENODATA; + + if (ret != -ENODEV) + netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n", + index, ret); return ret; } @@ -96,16 +113,15 @@ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, return ret; } -static int __must_check __smsc95xx_write_reg(struct usbnet *dev, u32 index, - u32 data, int in_pm) +static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index, + u32 data) { + struct smsc95xx_priv *pdata = dev->driver_priv; u32 buf; int ret; int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16); - BUG_ON(!dev); - - if (!in_pm) + if (current != pdata->pm_task) fn = usbnet_write_cmd; else fn = usbnet_write_cmd_nopm; @@ -116,49 +132,27 @@ static int __must_check __smsc95xx_write_reg(struct usbnet *dev, u32 index, ret = fn(dev, USB_VENDOR_REQUEST_WRITE_REGISTER, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, index, &buf, 4); - if (unlikely(ret < 0)) + if (ret < 0 && ret != -ENODEV) netdev_warn(dev->net, "Failed to write reg index 0x%08x: %d\n", index, ret); return ret; } -static int __must_check smsc95xx_read_reg_nopm(struct usbnet *dev, u32 index, - u32 *data) -{ - return __smsc95xx_read_reg(dev, index, data, 1); -} - -static int __must_check smsc95xx_write_reg_nopm(struct usbnet *dev, u32 index, - u32 data) -{ - return __smsc95xx_write_reg(dev, index, data, 1); -} - -static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index, - u32 *data) -{ - return __smsc95xx_read_reg(dev, index, data, 0); -} - -static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index, - u32 data) -{ - return __smsc95xx_write_reg(dev, index, data, 0); -} - /* Loop until the read is completed with timeout * called with phy_mutex held */ -static int __must_check __smsc95xx_phy_wait_not_busy(struct usbnet *dev, - int in_pm) +static int __must_check smsc95xx_phy_wait_not_busy(struct usbnet *dev) { unsigned long start_time = jiffies; u32 val; int ret; do { - ret = __smsc95xx_read_reg(dev, MII_ADDR, &val, in_pm); + ret = smsc95xx_read_reg(dev, MII_ADDR, &val); if (ret < 0) { + /* Ignore -ENODEV error during disconnect() */ + if (ret == -ENODEV) + return 0; netdev_warn(dev->net, "Error reading MII_ACCESS\n"); return ret; } @@ -175,8 +169,7 @@ static u32 mii_address_cmd(int phy_id, int idx, u16 op) return (phy_id & 0x1f) << 11 | (idx & 0x1f) << 6 | op; } -static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx, - int in_pm) +static int smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx) { u32 val, addr; int ret; @@ -184,7 +177,7 @@ static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx, mutex_lock(&dev->phy_mutex); /* confirm MII not busy */ - ret = __smsc95xx_phy_wait_not_busy(dev, in_pm); + ret = smsc95xx_phy_wait_not_busy(dev); if (ret < 0) { netdev_warn(dev->net, "%s: MII is busy\n", __func__); goto done; @@ -192,21 +185,23 @@ static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx, /* set the address, index & direction (read from PHY) */ addr = mii_address_cmd(phy_id, idx, MII_READ_ | MII_BUSY_); - ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm); + ret = smsc95xx_write_reg(dev, MII_ADDR, addr); if (ret < 0) { - netdev_warn(dev->net, "Error writing MII_ADDR\n"); + if (ret != -ENODEV) + netdev_warn(dev->net, "Error writing MII_ADDR\n"); goto done; } - ret = __smsc95xx_phy_wait_not_busy(dev, in_pm); + ret = smsc95xx_phy_wait_not_busy(dev); if (ret < 0) { netdev_warn(dev->net, "Timed out reading MII reg %02X\n", idx); goto done; } - ret = __smsc95xx_read_reg(dev, MII_DATA, &val, in_pm); + ret = smsc95xx_read_reg(dev, MII_DATA, &val); if (ret < 0) { - netdev_warn(dev->net, "Error reading MII_DATA\n"); + if (ret != -ENODEV) + netdev_warn(dev->net, "Error reading MII_DATA\n"); goto done; } @@ -214,11 +209,15 @@ static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx, done: mutex_unlock(&dev->phy_mutex); + + /* Ignore -ENODEV error during disconnect() */ + if (ret == -ENODEV) + return 0; return ret; } -static void __smsc95xx_mdio_write(struct usbnet *dev, int phy_id, - int idx, int regval, int in_pm) +static void smsc95xx_mdio_write(struct usbnet *dev, int phy_id, int idx, + int regval) { u32 val, addr; int ret; @@ -226,28 +225,30 @@ static void __smsc95xx_mdio_write(struct usbnet *dev, int phy_id, mutex_lock(&dev->phy_mutex); /* confirm MII not busy */ - ret = __smsc95xx_phy_wait_not_busy(dev, in_pm); + ret = smsc95xx_phy_wait_not_busy(dev); if (ret < 0) { netdev_warn(dev->net, "%s: MII is busy\n", __func__); goto done; } val = regval; - ret = __smsc95xx_write_reg(dev, MII_DATA, val, in_pm); + ret = smsc95xx_write_reg(dev, MII_DATA, val); if (ret < 0) { - netdev_warn(dev->net, "Error writing MII_DATA\n"); + if (ret != -ENODEV) + netdev_warn(dev->net, "Error writing MII_DATA\n"); goto done; } /* set the address, index & direction (write to PHY) */ addr = mii_address_cmd(phy_id, idx, MII_WRITE_ | MII_BUSY_); - ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm); + ret = smsc95xx_write_reg(dev, MII_ADDR, addr); if (ret < 0) { - netdev_warn(dev->net, "Error writing MII_ADDR\n"); + if (ret != -ENODEV) + netdev_warn(dev->net, "Error writing MII_ADDR\n"); goto done; } - ret = __smsc95xx_phy_wait_not_busy(dev, in_pm); + ret = smsc95xx_phy_wait_not_busy(dev); if (ret < 0) { netdev_warn(dev->net, "Timed out writing MII reg %02X\n", idx); goto done; @@ -257,25 +258,48 @@ done: mutex_unlock(&dev->phy_mutex); } -static int smsc95xx_mdio_read_nopm(struct usbnet *dev, int idx) +static int smsc95xx_mdiobus_reset(struct mii_bus *bus) { - struct smsc95xx_priv *pdata = dev->driver_priv; + struct smsc95xx_priv *pdata; + struct usbnet *dev; + u32 val; + int ret; - return __smsc95xx_mdio_read(dev, pdata->phydev->mdio.addr, idx, 1); -} + dev = bus->priv; + pdata = dev->driver_priv; -static void smsc95xx_mdio_write_nopm(struct usbnet *dev, int idx, int regval) -{ - struct smsc95xx_priv *pdata = dev->driver_priv; + if (pdata->is_internal_phy) + return 0; - __smsc95xx_mdio_write(dev, pdata->phydev->mdio.addr, idx, regval, 1); + mutex_lock(&dev->phy_mutex); + + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); + if (ret < 0) + goto reset_out; + + val |= PM_CTL_PHY_RST_; + + ret = smsc95xx_write_reg(dev, PM_CTRL, val); + if (ret < 0) + goto reset_out; + + /* Driver has no knowledge at this point about the external PHY. + * The 802.3 specifies that the reset process shall + * be completed within 0.5 s. + */ + fsleep(500000); + +reset_out: + mutex_unlock(&dev->phy_mutex); + + return 0; } static int smsc95xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx) { struct usbnet *dev = bus->priv; - return __smsc95xx_mdio_read(dev, phy_id, idx, 0); + return smsc95xx_mdio_read(dev, phy_id, idx); } static int smsc95xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx, @@ -283,7 +307,7 @@ static int smsc95xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx, { struct usbnet *dev = bus->priv; - __smsc95xx_mdio_write(dev, phy_id, idx, regval, 0); + smsc95xx_mdio_write(dev, phy_id, idx, regval); return 0; } @@ -516,16 +540,23 @@ static void smsc95xx_set_multicast(struct net_device *netdev) static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev) { - u32 flow = 0, afc_cfg; struct smsc95xx_priv *pdata = dev->driver_priv; - bool tx_pause, rx_pause; + u32 flow = 0, afc_cfg; int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg); if (ret < 0) return ret; if (pdata->phydev->duplex == DUPLEX_FULL) { - phy_get_pause(pdata->phydev, &tx_pause, &rx_pause); + bool tx_pause, rx_pause; + + if (pdata->phydev->autoneg == AUTONEG_ENABLE && + pdata->pause_autoneg) { + phy_get_pause(pdata->phydev, &tx_pause, &rx_pause); + } else { + tx_pause = pdata->pause_tx; + rx_pause = pdata->pause_rx; + } if (rx_pause) flow = 0xFFFF0002; @@ -552,16 +583,12 @@ static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev) return smsc95xx_write_reg(dev, AFC_CFG, afc_cfg); } -static int smsc95xx_link_reset(struct usbnet *dev) +static void smsc95xx_mac_update_fullduplex(struct usbnet *dev) { struct smsc95xx_priv *pdata = dev->driver_priv; unsigned long flags; int ret; - ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_); - if (ret < 0) - return ret; - spin_lock_irqsave(&pdata->mac_cr_lock, flags); if (pdata->phydev->duplex != DUPLEX_FULL) { pdata->mac_cr &= ~MAC_CR_FDPX_; @@ -573,18 +600,22 @@ static int smsc95xx_link_reset(struct usbnet *dev) spin_unlock_irqrestore(&pdata->mac_cr_lock, flags); ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr); - if (ret < 0) - return ret; + if (ret < 0) { + if (ret != -ENODEV) + netdev_warn(dev->net, + "Error updating MAC full duplex mode\n"); + return; + } ret = smsc95xx_phy_update_flowcontrol(dev); if (ret < 0) netdev_warn(dev->net, "Error updating PHY flow control\n"); - - return ret; } static void smsc95xx_status(struct usbnet *dev, struct urb *urb) { + struct smsc95xx_priv *pdata = dev->driver_priv; + unsigned long flags; u32 intdata; if (urb->actual_length != 4) { @@ -596,11 +627,15 @@ static void smsc95xx_status(struct usbnet *dev, struct urb *urb) intdata = get_unaligned_le32(urb->transfer_buffer); netif_dbg(dev, link, dev->net, "intdata: 0x%08X\n", intdata); + local_irq_save(flags); + if (intdata & INT_ENP_PHY_INT_) - usbnet_defer_kevent(dev, EVENT_LINK_RESET); + generic_handle_domain_irq(pdata->irqdomain, PHY_HWIRQ); else netdev_warn(dev->net, "unexpected interrupt, intdata=0x%08X\n", intdata); + + local_irq_restore(flags); } /* Enable or disable Tx & Rx checksum offload engines */ @@ -727,6 +762,75 @@ static u32 smsc95xx_get_link(struct net_device *net) return net->phydev->link; } +static void smsc95xx_ethtool_get_strings(struct net_device *netdev, u32 sset, + u8 *data) +{ + switch (sset) { + case ETH_SS_TEST: + net_selftest_get_strings(data); + break; + } +} + +static int smsc95xx_ethtool_get_sset_count(struct net_device *ndev, int sset) +{ + switch (sset) { + case ETH_SS_TEST: + return net_selftest_get_count(); + default: + return -EOPNOTSUPP; + } +} + +static void smsc95xx_get_pauseparam(struct net_device *ndev, + struct ethtool_pauseparam *pause) +{ + struct smsc95xx_priv *pdata; + struct usbnet *dev; + + dev = netdev_priv(ndev); + pdata = dev->driver_priv; + + pause->autoneg = pdata->pause_autoneg; + pause->rx_pause = pdata->pause_rx; + pause->tx_pause = pdata->pause_tx; +} + +static int smsc95xx_set_pauseparam(struct net_device *ndev, + struct ethtool_pauseparam *pause) +{ + bool pause_autoneg_rx, pause_autoneg_tx; + struct smsc95xx_priv *pdata; + struct phy_device *phydev; + struct usbnet *dev; + + dev = netdev_priv(ndev); + pdata = dev->driver_priv; + phydev = ndev->phydev; + + if (!phydev) + return -ENODEV; + + pdata->pause_rx = pause->rx_pause; + pdata->pause_tx = pause->tx_pause; + pdata->pause_autoneg = pause->autoneg; + + if (pause->autoneg) { + pause_autoneg_rx = pause->rx_pause; + pause_autoneg_tx = pause->tx_pause; + } else { + pause_autoneg_rx = false; + pause_autoneg_tx = false; + } + + phy_set_asym_pause(ndev->phydev, pause_autoneg_rx, pause_autoneg_tx); + if (phydev->link && (!pause->autoneg || + phydev->autoneg == AUTONEG_DISABLE)) + smsc95xx_mac_update_fullduplex(dev); + + return 0; +} + static const struct ethtool_ops smsc95xx_ethtool_ops = { .get_link = smsc95xx_get_link, .nway_reset = phy_ethtool_nway_reset, @@ -743,6 +847,11 @@ static const struct ethtool_ops smsc95xx_ethtool_ops = { .get_link_ksettings = phy_ethtool_get_link_ksettings, .set_link_ksettings = phy_ethtool_set_link_ksettings, .get_ts_info = ethtool_op_get_ts_info, + .self_test = net_selftest, + .get_strings = smsc95xx_ethtool_get_strings, + .get_sset_count = smsc95xx_ethtool_get_sset_count, + .get_pauseparam = smsc95xx_get_pauseparam, + .set_pauseparam = smsc95xx_set_pauseparam, }; static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) @@ -816,7 +925,7 @@ static int smsc95xx_start_tx_path(struct usbnet *dev) } /* Starts the Receive path */ -static int smsc95xx_start_rx_path(struct usbnet *dev, int in_pm) +static int smsc95xx_start_rx_path(struct usbnet *dev) { struct smsc95xx_priv *pdata = dev->driver_priv; unsigned long flags; @@ -825,13 +934,13 @@ static int smsc95xx_start_rx_path(struct usbnet *dev, int in_pm) pdata->mac_cr |= MAC_CR_RXEN_; spin_unlock_irqrestore(&pdata->mac_cr_lock, flags); - return __smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr, in_pm); + return smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr); } static int smsc95xx_reset(struct usbnet *dev) { struct smsc95xx_priv *pdata = dev->driver_priv; - u32 read_buf, write_buf, burst_cap; + u32 read_buf, burst_cap; int ret = 0, timeout; netif_dbg(dev, ifup, dev->net, "entering smsc95xx_reset\n"); @@ -851,25 +960,7 @@ static int smsc95xx_reset(struct usbnet *dev) if (timeout >= 100) { netdev_warn(dev->net, "timeout waiting for completion of Lite Reset\n"); - return ret; - } - - ret = smsc95xx_write_reg(dev, PM_CTRL, PM_CTL_PHY_RST_); - if (ret < 0) - return ret; - - timeout = 0; - do { - msleep(10); - ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf); - if (ret < 0) - return ret; - timeout++; - } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100)); - - if (timeout >= 100) { - netdev_warn(dev->net, "timeout waiting for PHY Reset\n"); - return ret; + return -ETIMEDOUT; } ret = smsc95xx_set_mac_address(dev); @@ -973,10 +1064,13 @@ static int smsc95xx_reset(struct usbnet *dev) return ret; netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x\n", read_buf); + ret = smsc95xx_read_reg(dev, LED_GPIO_CFG, &read_buf); + if (ret < 0) + return ret; /* Configure GPIO pins as LED outputs */ - write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED | - LED_GPIO_CFG_FDX_LED; - ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, write_buf); + read_buf |= LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED | + LED_GPIO_CFG_FDX_LED; + ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, read_buf); if (ret < 0) return ret; @@ -1026,7 +1120,7 @@ static int smsc95xx_reset(struct usbnet *dev) return ret; } - ret = smsc95xx_start_rx_path(dev, 0); + ret = smsc95xx_start_rx_path(dev); if (ret < 0) { netdev_warn(dev->net, "Failed to start RX path\n"); return ret; @@ -1055,15 +1149,16 @@ static void smsc95xx_handle_link_change(struct net_device *net) struct usbnet *dev = netdev_priv(net); phy_print_status(net->phydev); + smsc95xx_mac_update_fullduplex(dev); usbnet_defer_kevent(dev, EVENT_LINK_CHANGE); } static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) { struct smsc95xx_priv *pdata; - bool is_internal_phy; + char usb_path[64]; + int ret, phy_irq; u32 val; - int ret; printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n"); @@ -1103,23 +1198,52 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) if (ret) goto free_pdata; + /* create irq domain for use by PHY driver and GPIO consumers */ + usb_make_path(dev->udev, usb_path, sizeof(usb_path)); + pdata->irqfwnode = irq_domain_alloc_named_fwnode(usb_path); + if (!pdata->irqfwnode) { + ret = -ENOMEM; + goto free_pdata; + } + + pdata->irqdomain = irq_domain_create_linear(pdata->irqfwnode, + SMSC95XX_NR_IRQS, + &irq_domain_simple_ops, + pdata); + if (!pdata->irqdomain) { + ret = -ENOMEM; + goto free_irqfwnode; + } + + phy_irq = irq_create_mapping(pdata->irqdomain, PHY_HWIRQ); + if (!phy_irq) { + ret = -ENOENT; + goto remove_irqdomain; + } + + pdata->irqchip = dummy_irq_chip; + pdata->irqchip.name = SMSC_CHIPNAME; + irq_set_chip_and_handler_name(phy_irq, &pdata->irqchip, + handle_simple_irq, "phy"); + pdata->mdiobus = mdiobus_alloc(); if (!pdata->mdiobus) { ret = -ENOMEM; - goto free_pdata; + goto dispose_irq; } ret = smsc95xx_read_reg(dev, HW_CFG, &val); if (ret < 0) goto free_mdio; - is_internal_phy = !(val & HW_CFG_PSEL_); - if (is_internal_phy) + pdata->is_internal_phy = !(val & HW_CFG_PSEL_); + if (pdata->is_internal_phy) pdata->mdiobus->phy_mask = ~(1u << SMSC95XX_INTERNAL_PHY_ID); pdata->mdiobus->priv = dev; pdata->mdiobus->read = smsc95xx_mdiobus_read; pdata->mdiobus->write = smsc95xx_mdiobus_write; + pdata->mdiobus->reset = smsc95xx_mdiobus_reset; pdata->mdiobus->name = "smsc95xx-mdiobus"; pdata->mdiobus->parent = &dev->udev->dev; @@ -1139,7 +1263,8 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) goto unregister_mdio; } - pdata->phydev->is_internal = is_internal_phy; + pdata->phydev->irq = phy_irq; + pdata->phydev->is_internal = pdata->is_internal_phy; /* detect device revision as different features may be available */ ret = smsc95xx_read_reg(dev, ID_REV, &val); @@ -1163,6 +1288,11 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) dev->net->max_mtu = ETH_DATA_LEN; dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; + pdata->pause_tx = true; + pdata->pause_rx = true; + pdata->pause_autoneg = true; + phy_support_asym_pause(pdata->phydev); + ret = phy_connect_direct(dev->net, pdata->phydev, &smsc95xx_handle_link_change, PHY_INTERFACE_MODE_MII); @@ -1181,6 +1311,15 @@ unregister_mdio: free_mdio: mdiobus_free(pdata->mdiobus); +dispose_irq: + irq_dispose_mapping(phy_irq); + +remove_irqdomain: + irq_domain_remove(pdata->irqdomain); + +free_irqfwnode: + irq_domain_free_fwnode(pdata->irqfwnode); + free_pdata: kfree(pdata); return ret; @@ -1193,6 +1332,9 @@ static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf) phy_disconnect(dev->net->phydev); mdiobus_unregister(pdata->mdiobus); mdiobus_free(pdata->mdiobus); + irq_dispose_mapping(irq_find_mapping(pdata->irqdomain, PHY_HWIRQ)); + irq_domain_remove(pdata->irqdomain); + irq_domain_free_fwnode(pdata->irqfwnode); netif_dbg(dev, ifdown, dev->net, "free pdata\n"); kfree(pdata); } @@ -1206,8 +1348,7 @@ static int smsc95xx_start_phy(struct usbnet *dev) static int smsc95xx_stop(struct usbnet *dev) { - if (dev->net->phydev) - phy_stop(dev->net->phydev); + phy_stop(dev->net->phydev); return 0; } @@ -1218,39 +1359,17 @@ static u32 smsc_crc(const u8 *buffer, size_t len, int filter) return crc << ((filter % 2) * 16); } -static int smsc95xx_enable_phy_wakeup_interrupts(struct usbnet *dev, u16 mask) -{ - int ret; - - netdev_dbg(dev->net, "enabling PHY wakeup interrupts\n"); - - /* read to clear */ - ret = smsc95xx_mdio_read_nopm(dev, PHY_INT_SRC); - if (ret < 0) - return ret; - - /* enable interrupt source */ - ret = smsc95xx_mdio_read_nopm(dev, PHY_INT_MASK); - if (ret < 0) - return ret; - - ret |= mask; - - smsc95xx_mdio_write_nopm(dev, PHY_INT_MASK, ret); - - return 0; -} - -static int smsc95xx_link_ok_nopm(struct usbnet *dev) +static int smsc95xx_link_ok(struct usbnet *dev) { + struct smsc95xx_priv *pdata = dev->driver_priv; int ret; /* first, a dummy read, needed to latch some MII phys */ - ret = smsc95xx_mdio_read_nopm(dev, MII_BMSR); + ret = smsc95xx_mdio_read(dev, pdata->phydev->mdio.addr, MII_BMSR); if (ret < 0) return ret; - ret = smsc95xx_mdio_read_nopm(dev, MII_BMSR); + ret = smsc95xx_mdio_read(dev, pdata->phydev->mdio.addr, MII_BMSR); if (ret < 0) return ret; @@ -1263,14 +1382,14 @@ static int smsc95xx_enter_suspend0(struct usbnet *dev) u32 val; int ret; - ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); if (ret < 0) return ret; val &= (~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_)); val |= PM_CTL_SUS_MODE_0; - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) return ret; @@ -1282,12 +1401,12 @@ static int smsc95xx_enter_suspend0(struct usbnet *dev) if (pdata->wolopts & WAKE_PHY) val |= PM_CTL_WUPS_ED_; - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) return ret; /* read back PM_CTRL */ - ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); if (ret < 0) return ret; @@ -1299,34 +1418,34 @@ static int smsc95xx_enter_suspend0(struct usbnet *dev) static int smsc95xx_enter_suspend1(struct usbnet *dev) { struct smsc95xx_priv *pdata = dev->driver_priv; + int ret, phy_id = pdata->phydev->mdio.addr; u32 val; - int ret; /* reconfigure link pulse detection timing for * compatibility with non-standard link partners */ if (pdata->features & FEATURE_PHY_NLP_CROSSOVER) - smsc95xx_mdio_write_nopm(dev, PHY_EDPD_CONFIG, - PHY_EDPD_CONFIG_DEFAULT); + smsc95xx_mdio_write(dev, phy_id, PHY_EDPD_CONFIG, + PHY_EDPD_CONFIG_DEFAULT); /* enable energy detect power-down mode */ - ret = smsc95xx_mdio_read_nopm(dev, PHY_MODE_CTRL_STS); + ret = smsc95xx_mdio_read(dev, phy_id, PHY_MODE_CTRL_STS); if (ret < 0) return ret; ret |= MODE_CTRL_STS_EDPWRDOWN_; - smsc95xx_mdio_write_nopm(dev, PHY_MODE_CTRL_STS, ret); + smsc95xx_mdio_write(dev, phy_id, PHY_MODE_CTRL_STS, ret); /* enter SUSPEND1 mode */ - ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); if (ret < 0) return ret; val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_); val |= PM_CTL_SUS_MODE_1; - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) return ret; @@ -1334,7 +1453,7 @@ static int smsc95xx_enter_suspend1(struct usbnet *dev) val &= ~PM_CTL_WUPS_; val |= (PM_CTL_WUPS_ED_ | PM_CTL_ED_EN_); - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) return ret; @@ -1349,14 +1468,14 @@ static int smsc95xx_enter_suspend2(struct usbnet *dev) u32 val; int ret; - ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); if (ret < 0) return ret; val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_); val |= PM_CTL_SUS_MODE_2; - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) return ret; @@ -1371,7 +1490,7 @@ static int smsc95xx_enter_suspend3(struct usbnet *dev) u32 val; int ret; - ret = smsc95xx_read_reg_nopm(dev, RX_FIFO_INF, &val); + ret = smsc95xx_read_reg(dev, RX_FIFO_INF, &val); if (ret < 0) return ret; @@ -1380,14 +1499,14 @@ static int smsc95xx_enter_suspend3(struct usbnet *dev) return -EBUSY; } - ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); if (ret < 0) return ret; val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_); val |= PM_CTL_SUS_MODE_3 | PM_CTL_RES_CLR_WKP_STS; - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) return ret; @@ -1395,7 +1514,7 @@ static int smsc95xx_enter_suspend3(struct usbnet *dev) val &= ~PM_CTL_WUPS_; val |= PM_CTL_WUPS_WOL_; - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) return ret; @@ -1407,7 +1526,6 @@ static int smsc95xx_enter_suspend3(struct usbnet *dev) static int smsc95xx_autosuspend(struct usbnet *dev, u32 link_up) { struct smsc95xx_priv *pdata = dev->driver_priv; - int ret; if (!netif_running(dev->net)) { /* interface is ifconfig down so fully power down hw */ @@ -1426,27 +1544,10 @@ static int smsc95xx_autosuspend(struct usbnet *dev, u32 link_up) } netdev_dbg(dev->net, "autosuspend entering SUSPEND1\n"); - - /* enable PHY wakeup events for if cable is attached */ - ret = smsc95xx_enable_phy_wakeup_interrupts(dev, - PHY_INT_MASK_ANEG_COMP_); - if (ret < 0) { - netdev_warn(dev->net, "error enabling PHY wakeup ints\n"); - return ret; - } - netdev_info(dev->net, "entering SUSPEND1 mode\n"); return smsc95xx_enter_suspend1(dev); } - /* enable PHY wakeup events so we remote wakeup if cable is pulled */ - ret = smsc95xx_enable_phy_wakeup_interrupts(dev, - PHY_INT_MASK_LINK_DOWN_); - if (ret < 0) { - netdev_warn(dev->net, "error enabling PHY wakeup ints\n"); - return ret; - } - netdev_dbg(dev->net, "autosuspend entering SUSPEND3\n"); return smsc95xx_enter_suspend3(dev); } @@ -1458,9 +1559,12 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) u32 val, link_up; int ret; + pdata->pm_task = current; + ret = usbnet_suspend(intf, message); if (ret < 0) { netdev_warn(dev->net, "usbnet_suspend error\n"); + pdata->pm_task = NULL; return ret; } @@ -1469,8 +1573,7 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) pdata->suspend_flags = 0; } - /* determine if link is up using only _nopm functions */ - link_up = smsc95xx_link_ok_nopm(dev); + link_up = smsc95xx_link_ok(dev); if (message.event == PM_EVENT_AUTO_SUSPEND && (pdata->features & FEATURE_REMOTE_WAKEUP)) { @@ -1487,23 +1590,23 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) netdev_info(dev->net, "entering SUSPEND2 mode\n"); /* disable energy detect (link up) & wake up events */ - ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + ret = smsc95xx_read_reg(dev, WUCSR, &val); if (ret < 0) goto done; val &= ~(WUCSR_MPEN_ | WUCSR_WAKE_EN_); - ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + ret = smsc95xx_write_reg(dev, WUCSR, val); if (ret < 0) goto done; - ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); if (ret < 0) goto done; val &= ~(PM_CTL_ED_EN_ | PM_CTL_WOL_EN_); - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) goto done; @@ -1512,13 +1615,6 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) } if (pdata->wolopts & WAKE_PHY) { - ret = smsc95xx_enable_phy_wakeup_interrupts(dev, - (PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_LINK_DOWN_)); - if (ret < 0) { - netdev_warn(dev->net, "error enabling PHY wakeup ints\n"); - goto done; - } - /* if link is down then configure EDPD and enter SUSPEND1, * otherwise enter SUSPEND0 below */ @@ -1601,7 +1697,7 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) } for (i = 0; i < (wuff_filter_count * 4); i++) { - ret = smsc95xx_write_reg_nopm(dev, WUFF, filter_mask[i]); + ret = smsc95xx_write_reg(dev, WUFF, filter_mask[i]); if (ret < 0) { kfree(filter_mask); goto done; @@ -1610,50 +1706,50 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) kfree(filter_mask); for (i = 0; i < (wuff_filter_count / 4); i++) { - ret = smsc95xx_write_reg_nopm(dev, WUFF, command[i]); + ret = smsc95xx_write_reg(dev, WUFF, command[i]); if (ret < 0) goto done; } for (i = 0; i < (wuff_filter_count / 4); i++) { - ret = smsc95xx_write_reg_nopm(dev, WUFF, offset[i]); + ret = smsc95xx_write_reg(dev, WUFF, offset[i]); if (ret < 0) goto done; } for (i = 0; i < (wuff_filter_count / 2); i++) { - ret = smsc95xx_write_reg_nopm(dev, WUFF, crc[i]); + ret = smsc95xx_write_reg(dev, WUFF, crc[i]); if (ret < 0) goto done; } /* clear any pending pattern match packet status */ - ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + ret = smsc95xx_read_reg(dev, WUCSR, &val); if (ret < 0) goto done; val |= WUCSR_WUFR_; - ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + ret = smsc95xx_write_reg(dev, WUCSR, val); if (ret < 0) goto done; } if (pdata->wolopts & WAKE_MAGIC) { /* clear any pending magic packet status */ - ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + ret = smsc95xx_read_reg(dev, WUCSR, &val); if (ret < 0) goto done; val |= WUCSR_MPR_; - ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + ret = smsc95xx_write_reg(dev, WUCSR, val); if (ret < 0) goto done; } /* enable/disable wakeup sources */ - ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + ret = smsc95xx_read_reg(dev, WUCSR, &val); if (ret < 0) goto done; @@ -1673,12 +1769,12 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) val &= ~WUCSR_MPEN_; } - ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + ret = smsc95xx_write_reg(dev, WUCSR, val); if (ret < 0) goto done; /* enable wol wakeup source */ - ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); if (ret < 0) goto done; @@ -1688,12 +1784,12 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) if (pdata->wolopts & WAKE_PHY) val |= PM_CTL_ED_EN_; - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) goto done; /* enable receiver to enable frame reception */ - smsc95xx_start_rx_path(dev, 1); + smsc95xx_start_rx_path(dev); /* some wol options are enabled, so enter SUSPEND0 */ netdev_info(dev->net, "entering SUSPEND0 mode\n"); @@ -1707,6 +1803,7 @@ done: if (ret && PMSG_IS_AUTO(message)) usbnet_resume(intf); + pdata->pm_task = NULL; return ret; } @@ -1727,45 +1824,53 @@ static int smsc95xx_resume(struct usb_interface *intf) /* do this first to ensure it's cleared even in error case */ pdata->suspend_flags = 0; + pdata->pm_task = current; + if (suspend_flags & SUSPEND_ALLMODES) { /* clear wake-up sources */ - ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + ret = smsc95xx_read_reg(dev, WUCSR, &val); if (ret < 0) - return ret; + goto done; val &= ~(WUCSR_WAKE_EN_ | WUCSR_MPEN_); - ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + ret = smsc95xx_write_reg(dev, WUCSR, val); if (ret < 0) - return ret; + goto done; /* clear wake-up status */ - ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + ret = smsc95xx_read_reg(dev, PM_CTRL, &val); if (ret < 0) - return ret; + goto done; val &= ~PM_CTL_WOL_EN_; val |= PM_CTL_WUPS_; - ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + ret = smsc95xx_write_reg(dev, PM_CTRL, val); if (ret < 0) - return ret; + goto done; } + phy_init_hw(pdata->phydev); + ret = usbnet_resume(intf); if (ret < 0) netdev_warn(dev->net, "usbnet_resume error\n"); - phy_init_hw(pdata->phydev); +done: + pdata->pm_task = NULL; return ret; } static int smsc95xx_reset_resume(struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); + struct smsc95xx_priv *pdata = dev->driver_priv; int ret; + pdata->pm_task = current; ret = smsc95xx_reset(dev); + pdata->pm_task = NULL; if (ret < 0) return ret; @@ -1774,9 +1879,11 @@ static int smsc95xx_reset_resume(struct usb_interface *intf) static void smsc95xx_rx_csum_offload(struct sk_buff *skb) { - skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2); + u16 *csum_ptr = (u16 *)(skb_tail_pointer(skb) - 2); + + skb->csum = (__force __wsum)get_unaligned(csum_ptr); skb->ip_summed = CHECKSUM_COMPLETE; - skb_trim(skb, skb->len - 2); + skb_trim(skb, skb->len - 2); /* remove csum */ } static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) @@ -1799,6 +1906,12 @@ static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) size = (u16)((header & RX_STS_FL_) >> 16); align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4; + if (unlikely(size > skb->len)) { + netif_dbg(dev, rx_err, dev->net, + "size err header=0x%08x\n", header); + return 0; + } + if (unlikely(header & RX_STS_ES_)) { netif_dbg(dev, rx_err, dev->net, "Error header=0x%08x\n", header); @@ -1828,25 +1941,22 @@ static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) if (dev->net->features & NETIF_F_RXCSUM) smsc95xx_rx_csum_offload(skb); skb_trim(skb, skb->len - 4); /* remove fcs */ - skb->truesize = size + sizeof(struct sk_buff); return 1; } - ax_skb = skb_clone(skb, GFP_ATOMIC); + ax_skb = netdev_alloc_skb_ip_align(dev->net, size); if (unlikely(!ax_skb)) { netdev_warn(dev->net, "Error allocating skb\n"); return 0; } - ax_skb->len = size; - ax_skb->data = packet; - skb_set_tail_pointer(ax_skb, size); + skb_put(ax_skb, size); + memcpy(ax_skb->data, packet, size); if (dev->net->features & NETIF_F_RXCSUM) smsc95xx_rx_csum_offload(ax_skb); skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */ - ax_skb->truesize = size + sizeof(struct sk_buff); usbnet_skb_return(dev, ax_skb); } @@ -1961,7 +2071,6 @@ static const struct driver_info smsc95xx_info = { .description = "smsc95xx USB 2.0 Ethernet", .bind = smsc95xx_bind, .unbind = smsc95xx_unbind, - .link_reset = smsc95xx_link_reset, .reset = smsc95xx_reset, .check_connect = smsc95xx_start_phy, .stop = smsc95xx_stop, @@ -2063,6 +2172,16 @@ static const struct usb_device_id products[] = { USB_DEVICE(0x0424, 0x9E08), .driver_info = (unsigned long) &smsc95xx_info, }, + { + /* SYSTEC USB-SPEmodule1 10BASE-T1L Ethernet Device */ + USB_DEVICE(0x0878, 0x1400), + .driver_info = (unsigned long)&smsc95xx_info, + }, + { + /* Microchip's EVB-LAN8670-USB 10BASE-T1S Ethernet Device */ + USB_DEVICE(0x184F, 0x0051), + .driver_info = (unsigned long)&smsc95xx_info, + }, { }, /* END */ }; MODULE_DEVICE_TABLE(usb, products); diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c index b658510cc9a4..091bc2aca7e8 100644 --- a/drivers/net/usb/sr9700.c +++ b/drivers/net/usb/sr9700.c @@ -177,7 +177,8 @@ static int sr9700_get_eeprom(struct net_device *netdev, static int sr_mdio_read(struct net_device *netdev, int phy_id, int loc) { struct usbnet *dev = netdev_priv(netdev); - __le16 res; + int err, res; + __le16 word; int rc = 0; if (phy_id) { @@ -189,15 +190,21 @@ static int sr_mdio_read(struct net_device *netdev, int phy_id, int loc) if (loc == MII_BMSR) { u8 value; - sr_read_reg(dev, SR_NSR, &value); + err = sr_read_reg(dev, SR_NSR, &value); + if (err < 0) + return err; + if (value & NSR_LINKST) rc = 1; } - sr_share_read_word(dev, 1, loc, &res); + err = sr_share_read_word(dev, 1, loc, &word); + if (err < 0) + return err; + if (rc == 1) - res = le16_to_cpu(res) | BMSR_LSTATUS; + res = le16_to_cpu(word) | BMSR_LSTATUS; else - res = le16_to_cpu(res) & ~BMSR_LSTATUS; + res = le16_to_cpu(word) & ~BMSR_LSTATUS; netdev_dbg(netdev, "sr_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", phy_id, loc, res); @@ -413,7 +420,7 @@ static int sr9700_rx_fixup(struct usbnet *dev, struct sk_buff *skb) /* ignore the CRC length */ len = (skb->data[1] | (skb->data[2] << 8)) - 4; - if (len > ETH_FRAME_LEN) + if (len > ETH_FRAME_LEN || len > skb->len || len < 0) return 0; /* the last packet of current skb */ @@ -421,19 +428,15 @@ static int sr9700_rx_fixup(struct usbnet *dev, struct sk_buff *skb) skb_pull(skb, 3); skb->len = len; skb_set_tail_pointer(skb, len); - skb->truesize = len + sizeof(struct sk_buff); return 2; } - /* skb_clone is used for address align */ - sr_skb = skb_clone(skb, GFP_ATOMIC); + sr_skb = netdev_alloc_skb_ip_align(dev->net, len); if (!sr_skb) return 0; - sr_skb->len = len; - sr_skb->data = skb->data + 3; - skb_set_tail_pointer(sr_skb, len); - sr_skb->truesize = len + sizeof(struct sk_buff); + skb_put(sr_skb, len); + memcpy(sr_skb->data, skb->data + 3, len); usbnet_skb_return(dev, sr_skb); skb_pull(skb, len + SR_RX_OVERHEAD); diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c index f5e19f3ef6cd..57947a5590cc 100644 --- a/drivers/net/usb/sr9800.c +++ b/drivers/net/usb/sr9800.c @@ -474,8 +474,8 @@ static void sr_get_drvinfo(struct net_device *net, { /* Inherit standard device info */ usbnet_get_drvinfo(net, info); - strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); - strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); + strscpy(info->driver, DRIVER_NAME, sizeof(info->driver)); + strscpy(info->version, DRIVER_VERSION, sizeof(info->version)); } static u32 sr_get_link(struct net_device *net) @@ -737,7 +737,9 @@ static int sr9800_bind(struct usbnet *dev, struct usb_interface *intf) data->eeprom_len = SR9800_EEPROM_LEN; - usbnet_get_endpoints(dev, intf); + ret = usbnet_get_endpoints(dev, intf); + if (ret) + goto out; /* LED Setting Rule : * AABB:CCDD diff --git a/drivers/net/usb/sr9800.h b/drivers/net/usb/sr9800.h index 18f670251275..952e6f7c0321 100644 --- a/drivers/net/usb/sr9800.h +++ b/drivers/net/usb/sr9800.h @@ -163,7 +163,7 @@ #define SR9800_MAX_BULKIN_24K 6 #define SR9800_MAX_BULKIN_32K 7 -struct {unsigned short size, byte_cnt, threshold; } SR9800_BULKIN_SIZE[] = { +static const struct {unsigned short size, byte_cnt, threshold; } SR9800_BULKIN_SIZE[] = { /* 2k */ {2048, 0x8000, 0x8001}, /* 4k */ diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 9a6450f796dc..1d9faa70ba3b 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -17,9 +17,6 @@ * issues can usefully be addressed by this framework. */ -// #define DEBUG // error path messages, extra info -// #define VERBOSE // more; success messages - #include <linux/module.h> #include <linux/init.h> #include <linux/netdevice.h> @@ -64,9 +61,6 @@ /*-------------------------------------------------------------------------*/ -// randomly generated ethernet address -static u8 node_id [ETH_ALEN]; - /* use ethtool to change the level for any given device */ static int msg_level = -1; module_param (msg_level, int, 0); @@ -148,16 +142,16 @@ int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf) if (alt->desc.bAlternateSetting != 0 || !(dev->driver_info->flags & FLAG_NO_SETINT)) { - tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber, - alt->desc.bAlternateSetting); + tmp = usb_set_interface(dev->udev, alt->desc.bInterfaceNumber, + alt->desc.bAlternateSetting); if (tmp < 0) return tmp; } - dev->in = usb_rcvbulkpipe (dev->udev, - in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); - dev->out = usb_sndbulkpipe (dev->udev, - out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); + dev->in = usb_rcvbulkpipe(dev->udev, + in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); + dev->out = usb_sndbulkpipe(dev->udev, + out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); dev->status = status; return 0; } @@ -169,7 +163,7 @@ int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress) int tmp = -1, ret; unsigned char buf [13]; - ret = usb_string(dev->udev, iMACAddress, buf, sizeof buf); + ret = usb_string(dev->udev, iMACAddress, buf, sizeof(buf)); if (ret == 12) tmp = hex2bin(addr, buf, 6); if (tmp < 0) { @@ -184,7 +178,18 @@ int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress) } EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr); -static void intr_complete (struct urb *urb) +static bool usbnet_needs_usb_name_format(struct usbnet *dev, struct net_device *net) +{ + /* Point to point devices which don't have a real MAC address + * (or report a fake local one) have historically used the usb%d + * naming. Preserve this.. + */ + return (dev->driver_info->flags & FLAG_POINTTOPOINT) != 0 && + (is_zero_ether_addr(net->dev_addr) || + is_local_ether_addr(net->dev_addr)); +} + +static void intr_complete(struct urb *urb) { struct usbnet *dev = urb->context; int status = urb->status; @@ -210,13 +215,13 @@ static void intr_complete (struct urb *urb) break; } - status = usb_submit_urb (urb, GFP_ATOMIC); + status = usb_submit_urb(urb, GFP_ATOMIC); if (status != 0) netif_err(dev, timer, dev->net, "intr resubmit --> %d\n", status); } -static int init_status (struct usbnet *dev, struct usb_interface *intf) +static int init_status(struct usbnet *dev, struct usb_interface *intf) { char *buf = NULL; unsigned pipe = 0; @@ -226,24 +231,24 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf) if (!dev->driver_info->status) return 0; - pipe = usb_rcvintpipe (dev->udev, - dev->status->desc.bEndpointAddress - & USB_ENDPOINT_NUMBER_MASK); - maxp = usb_maxpacket (dev->udev, pipe, 0); + pipe = usb_rcvintpipe(dev->udev, + dev->status->desc.bEndpointAddress + & USB_ENDPOINT_NUMBER_MASK); + maxp = usb_maxpacket(dev->udev, pipe); /* avoid 1 msec chatter: min 8 msec poll rate */ period = max ((int) dev->status->desc.bInterval, (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3); - buf = kmalloc (maxp, GFP_KERNEL); + buf = kmalloc(maxp, GFP_KERNEL); if (buf) { - dev->interrupt = usb_alloc_urb (0, GFP_KERNEL); + dev->interrupt = usb_alloc_urb(0, GFP_KERNEL); if (!dev->interrupt) { - kfree (buf); + kfree(buf); return -ENOMEM; } else { usb_fill_int_urb(dev->interrupt, dev->udev, pipe, - buf, maxp, intr_complete, dev, period); + buf, maxp, intr_complete, dev, period); dev->interrupt->transfer_flags |= URB_FREE_BUFFER; dev_dbg(&intf->dev, "status ep%din, %d bytes period %d\n", @@ -321,7 +326,7 @@ static void __usbnet_status_stop_force(struct usbnet *dev) * Some link protocols batch packets, so their rx_fixup paths * can return clones as well as just modify the original skb. */ -void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb) +void usbnet_skb_return(struct usbnet *dev, struct sk_buff *skb) { struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->net->tstats); unsigned long flags; @@ -334,16 +339,16 @@ void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb) /* only update if unset to allow minidriver rx_fixup override */ if (skb->protocol == 0) - skb->protocol = eth_type_trans (skb, dev->net); + skb->protocol = eth_type_trans(skb, dev->net); flags = u64_stats_update_begin_irqsave(&stats64->syncp); - stats64->rx_packets++; - stats64->rx_bytes += skb->len; + u64_stats_inc(&stats64->rx_packets); + u64_stats_add(&stats64->rx_bytes, skb->len); u64_stats_update_end_irqrestore(&stats64->syncp, flags); netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n", - skb->len + sizeof (struct ethhdr), skb->protocol); - memset (skb->cb, 0, sizeof (struct skb_data)); + skb->len + sizeof(struct ethhdr), skb->protocol); + memset(skb->cb, 0, sizeof(struct skb_data)); if (skb_defer_rx_timestamp(skb)) return; @@ -384,14 +389,14 @@ insanity: } EXPORT_SYMBOL_GPL(usbnet_update_max_qlen); - + /*------------------------------------------------------------------------- * * Network Device Driver (peer link to "Host Device", from USB host) * *-------------------------------------------------------------------------*/ -int usbnet_change_mtu (struct net_device *net, int new_mtu) +int usbnet_change_mtu(struct net_device *net, int new_mtu) { struct usbnet *dev = netdev_priv(net); int ll_mtu = new_mtu + net->hard_header_len; @@ -401,7 +406,7 @@ int usbnet_change_mtu (struct net_device *net, int new_mtu) // no second zero-length packet read wanted after mtu-sized packets if ((ll_mtu % dev->maxpacket) == 0) return -EDOM; - net->mtu = new_mtu; + WRITE_ONCE(net->mtu, new_mtu); dev->hard_mtu = net->mtu + net->hard_header_len; if (dev->rx_urb_size == old_hard_mtu) { @@ -456,7 +461,7 @@ static enum skb_state defer_bh(struct usbnet *dev, struct sk_buff *skb, __skb_queue_tail(&dev->done, skb); if (dev->done.qlen == 1) - tasklet_schedule(&dev->bh); + queue_work(system_bh_wq, &dev->bh_work); spin_unlock(&dev->done.lock); spin_unlock_irqrestore(&list->lock, flags); return old_state; @@ -467,21 +472,26 @@ static enum skb_state defer_bh(struct usbnet *dev, struct sk_buff *skb, * NOTE: annoying asymmetry: if it's active, schedule_work() fails, * but tasklet_schedule() doesn't. hope the failure is rare. */ -void usbnet_defer_kevent (struct usbnet *dev, int work) +void usbnet_defer_kevent(struct usbnet *dev, int work) { set_bit (work, &dev->flags); - if (!schedule_work (&dev->kevent)) - netdev_dbg(dev->net, "kevent %s may have been dropped\n", usbnet_event_names[work]); - else - netdev_dbg(dev->net, "kevent %s scheduled\n", usbnet_event_names[work]); + if (!usbnet_going_away(dev)) { + if (!schedule_work(&dev->kevent)) + netdev_dbg(dev->net, + "kevent %s may have been dropped\n", + usbnet_event_names[work]); + else + netdev_dbg(dev->net, + "kevent %s scheduled\n", usbnet_event_names[work]); + } } EXPORT_SYMBOL_GPL(usbnet_defer_kevent); /*-------------------------------------------------------------------------*/ -static void rx_complete (struct urb *urb); +static void rx_complete(struct urb *urb); -static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) +static int rx_submit(struct usbnet *dev, struct urb *urb, gfp_t flags) { struct sk_buff *skb; struct skb_data *entry; @@ -501,8 +511,8 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) skb = __netdev_alloc_skb_ip_align(dev->net, size, flags); if (!skb) { netif_dbg(dev, rx_err, dev->net, "no rx skb\n"); - usbnet_defer_kevent (dev, EVENT_RX_MEMORY); - usb_free_urb (urb); + usbnet_defer_kevent(dev, EVENT_RX_MEMORY); + usb_free_urb(urb); return -ENOMEM; } @@ -511,26 +521,27 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) entry->dev = dev; entry->length = 0; - usb_fill_bulk_urb (urb, dev->udev, dev->in, - skb->data, size, rx_complete, skb); + usb_fill_bulk_urb(urb, dev->udev, dev->in, + skb->data, size, rx_complete, skb); - spin_lock_irqsave (&dev->rxq.lock, lockflags); + spin_lock_irqsave(&dev->rxq.lock, lockflags); - if (netif_running (dev->net) && - netif_device_present (dev->net) && + if (netif_running(dev->net) && + netif_device_present(dev->net) && test_bit(EVENT_DEV_OPEN, &dev->flags) && - !test_bit (EVENT_RX_HALT, &dev->flags) && - !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) { - switch (retval = usb_submit_urb (urb, GFP_ATOMIC)) { + !test_bit(EVENT_RX_HALT, &dev->flags) && + !test_bit(EVENT_DEV_ASLEEP, &dev->flags) && + !usbnet_going_away(dev)) { + switch (retval = usb_submit_urb(urb, GFP_ATOMIC)) { case -EPIPE: - usbnet_defer_kevent (dev, EVENT_RX_HALT); + usbnet_defer_kevent(dev, EVENT_RX_HALT); break; case -ENOMEM: - usbnet_defer_kevent (dev, EVENT_RX_MEMORY); + usbnet_defer_kevent(dev, EVENT_RX_MEMORY); break; case -ENODEV: netif_dbg(dev, ifdown, dev->net, "device gone\n"); - netif_device_detach (dev->net); + netif_device_detach(dev->net); break; case -EHOSTUNREACH: retval = -ENOLINK; @@ -538,7 +549,7 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) default: netif_dbg(dev, rx_err, dev->net, "rx submit, %d\n", retval); - tasklet_schedule (&dev->bh); + queue_work(system_bh_wq, &dev->bh_work); break; case 0: __usbnet_queue_skb(&dev->rxq, skb, rx_start); @@ -547,10 +558,10 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) netif_dbg(dev, ifdown, dev->net, "rx: stopped\n"); retval = -ENOLINK; } - spin_unlock_irqrestore (&dev->rxq.lock, lockflags); + spin_unlock_irqrestore(&dev->rxq.lock, lockflags); if (retval) { - dev_kfree_skb_any (skb); - usb_free_urb (urb); + dev_kfree_skb_any(skb); + usb_free_urb(urb); } return retval; } @@ -558,37 +569,35 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) /*-------------------------------------------------------------------------*/ -static inline void rx_process (struct usbnet *dev, struct sk_buff *skb) +static inline int rx_process(struct usbnet *dev, struct sk_buff *skb) { if (dev->driver_info->rx_fixup && - !dev->driver_info->rx_fixup (dev, skb)) { + !dev->driver_info->rx_fixup(dev, skb)) { /* With RX_ASSEMBLE, rx_fixup() must update counters */ if (!(dev->driver_info->flags & FLAG_RX_ASSEMBLE)) dev->net->stats.rx_errors++; - goto done; + return -EPROTO; } // else network stack removes extra byte if we forced a short packet /* all data was already cloned from skb inside the driver */ if (dev->driver_info->flags & FLAG_MULTI_PACKET) - goto done; + return -EALREADY; if (skb->len < ETH_HLEN) { dev->net->stats.rx_errors++; dev->net->stats.rx_length_errors++; netif_dbg(dev, rx_err, dev->net, "rx length %d\n", skb->len); - } else { - usbnet_skb_return(dev, skb); - return; + return -EPROTO; } -done: - skb_queue_tail(&dev->done, skb); + usbnet_skb_return(dev, skb); + return 0; } /*-------------------------------------------------------------------------*/ -static void rx_complete (struct urb *urb) +static void rx_complete(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *) urb->context; struct skb_data *entry = (struct skb_data *) skb->cb; @@ -596,7 +605,7 @@ static void rx_complete (struct urb *urb) int urb_status = urb->status; enum skb_state state; - skb_put (skb, urb->actual_length); + skb_put(skb, urb->actual_length); state = rx_done; entry->urb = NULL; @@ -612,7 +621,7 @@ static void rx_complete (struct urb *urb) */ case -EPIPE: dev->net->stats.rx_errors++; - usbnet_defer_kevent (dev, EVENT_RX_HALT); + usbnet_defer_kevent(dev, EVENT_RX_HALT); fallthrough; /* software-driven interface shutdown */ @@ -630,8 +639,8 @@ static void rx_complete (struct urb *urb) case -ETIME: case -EILSEQ: dev->net->stats.rx_errors++; - if (!timer_pending (&dev->delay)) { - mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); + if (!timer_pending(&dev->delay)) { + mod_timer(&dev->delay, jiffies + THROTTLE_JIFFIES); netif_dbg(dev, link, dev->net, "rx throttle %d\n", urb_status); } @@ -667,14 +676,14 @@ block: state = defer_bh(dev, skb, &dev->rxq, state); if (urb) { - if (netif_running (dev->net) && - !test_bit (EVENT_RX_HALT, &dev->flags) && + if (netif_running(dev->net) && + !test_bit(EVENT_RX_HALT, &dev->flags) && state != unlink_start) { - rx_submit (dev, urb, GFP_ATOMIC); + rx_submit(dev, urb, GFP_ATOMIC); usb_mark_last_busy(dev->udev); return; } - usb_free_urb (urb); + usb_free_urb(urb); } netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n"); } @@ -693,6 +702,7 @@ void usbnet_resume_rx(struct usbnet *dev) struct sk_buff *skb; int num = 0; + local_bh_disable(); clear_bit(EVENT_RX_PAUSED, &dev->flags); while ((skb = skb_dequeue(&dev->rxq_pause)) != NULL) { @@ -700,7 +710,8 @@ void usbnet_resume_rx(struct usbnet *dev) num++; } - tasklet_schedule(&dev->bh); + queue_work(system_bh_wq, &dev->bh_work); + local_bh_enable(); netif_dbg(dev, rx_status, dev->net, "paused rx queue disabled, %d skbs requeued\n", num); @@ -717,7 +728,7 @@ EXPORT_SYMBOL_GPL(usbnet_purge_paused_rxq); // unlink pending rx/tx; completion handlers do all other cleanup -static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q) +static int unlink_urbs(struct usbnet *dev, struct sk_buff_head *q) { unsigned long flags; struct sk_buff *skb; @@ -750,7 +761,7 @@ found: spin_unlock_irqrestore(&q->lock, flags); // during some PM-driven resume scenarios, // these (async) unlinks complete immediately - retval = usb_unlink_urb (urb); + retval = usb_unlink_urb(urb); if (retval != -EINPROGRESS && retval != 0) netdev_dbg(dev->net, "unlink urb err, %d\n", retval); else @@ -758,7 +769,7 @@ found: usb_put_urb(urb); spin_lock_irqsave(&q->lock, flags); } - spin_unlock_irqrestore (&q->lock, flags); + spin_unlock_irqrestore(&q->lock, flags); return count; } @@ -769,7 +780,7 @@ void usbnet_unlink_rx_urbs(struct usbnet *dev) { if (netif_running(dev->net)) { (void) unlink_urbs (dev, &dev->rxq); - tasklet_schedule(&dev->bh); + queue_work(system_bh_wq, &dev->bh_work); } } EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs); @@ -812,14 +823,15 @@ static void usbnet_terminate_urbs(struct usbnet *dev) remove_wait_queue(&dev->wait, &wait); } -int usbnet_stop (struct net_device *net) +int usbnet_stop(struct net_device *net) { struct usbnet *dev = netdev_priv(net); const struct driver_info *info = dev->driver_info; int retval, pm, mpn; clear_bit(EVENT_DEV_OPEN, &dev->flags); - netif_stop_queue (net); + netif_stop_queue(net); + netdev_reset_queue(net); netif_info(dev, ifdown, dev->net, "stop stats: rx/tx %lu/%lu, errs %lu/%lu\n", @@ -849,13 +861,20 @@ int usbnet_stop (struct net_device *net) mpn = !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags); - /* deferred work (task, timer, softirq) must also stop. - * can't flush_scheduled_work() until we drop rtnl (later), - * else workers could deadlock; so make workers a NOP. - */ + /* deferred work (timer, softirq, task) must also stop */ dev->flags = 0; - del_timer_sync (&dev->delay); - tasklet_kill (&dev->bh); + timer_delete_sync(&dev->delay); + cancel_work_sync(&dev->bh_work); + cancel_work_sync(&dev->kevent); + + /* We have cyclic dependencies. Those calls are needed + * to break a cycle. We cannot fall into the gaps because + * we have a flag + */ + cancel_work_sync(&dev->bh_work); + timer_delete_sync(&dev->delay); + cancel_work_sync(&dev->kevent); + if (!pm) usb_autopm_put_interface(dev->intf); @@ -874,7 +893,7 @@ EXPORT_SYMBOL_GPL(usbnet_stop); // precondition: never called in_interrupt -int usbnet_open (struct net_device *net) +int usbnet_open(struct net_device *net) { struct usbnet *dev = netdev_priv(net); int retval; @@ -891,23 +910,29 @@ int usbnet_open (struct net_device *net) } // put into "known safe" state - if (info->reset && (retval = info->reset (dev)) < 0) { - netif_info(dev, ifup, dev->net, - "open reset fail (%d) usbnet usb-%s-%s, %s\n", - retval, - dev->udev->bus->bus_name, - dev->udev->devpath, - info->description); - goto done; + if (info->reset) { + retval = info->reset(dev); + if (retval < 0) { + netif_info(dev, ifup, dev->net, + "open reset fail (%d) usbnet usb-%s-%s, %s\n", + retval, + dev->udev->bus->bus_name, + dev->udev->devpath, + info->description); + goto done; + } } /* hard_mtu or rx_urb_size may change in reset() */ usbnet_update_max_qlen(dev); // insist peer be connected - if (info->check_connect && (retval = info->check_connect (dev)) < 0) { - netif_err(dev, ifup, dev->net, "can't open; %d\n", retval); - goto done; + if (info->check_connect) { + retval = info->check_connect(dev); + if (retval < 0) { + netif_err(dev, ifup, dev->net, "can't open; %d\n", retval); + goto done; + } } /* start any status interrupt transfer */ @@ -921,6 +946,7 @@ int usbnet_open (struct net_device *net) } set_bit(EVENT_DEV_OPEN, &dev->flags); + netdev_reset_queue(net); netif_start_queue (net); netif_info(dev, ifup, dev->net, "open: enable queueing (rx %d, tx %d) mtu %d %s framing\n", @@ -939,7 +965,7 @@ int usbnet_open (struct net_device *net) clear_bit(EVENT_RX_KILL, &dev->flags); // delay posting reads until we're fully open - tasklet_schedule (&dev->bh); + queue_work(system_bh_wq, &dev->bh_work); if (info->manage_power) { retval = info->manage_power(dev, 1); if (retval < 0) { @@ -997,6 +1023,13 @@ int usbnet_get_link_ksettings_internal(struct net_device *net, else cmd->base.speed = SPEED_UNKNOWN; + /* The standard "Universal Serial Bus Class Definitions + * for Communications Devices v1.2" does not specify + * anything about duplex status. + * So set it DUPLEX_UNKNOWN instead of default DUPLEX_HALF. + */ + cmd->base.duplex = DUPLEX_UNKNOWN; + return 0; } EXPORT_SYMBOL_GPL(usbnet_get_link_ksettings_internal); @@ -1023,13 +1056,13 @@ int usbnet_set_link_ksettings_mii(struct net_device *net, } EXPORT_SYMBOL_GPL(usbnet_set_link_ksettings_mii); -u32 usbnet_get_link (struct net_device *net) +u32 usbnet_get_link(struct net_device *net) { struct usbnet *dev = netdev_priv(net); /* If a check_connect is defined, return its result */ if (dev->driver_info->check_connect) - return dev->driver_info->check_connect (dev) == 0; + return dev->driver_info->check_connect(dev) == 0; /* if the device has mii operations, use those */ if (dev->mii.mdio_read) @@ -1051,18 +1084,18 @@ int usbnet_nway_reset(struct net_device *net) } EXPORT_SYMBOL_GPL(usbnet_nway_reset); -void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) +void usbnet_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) { struct usbnet *dev = netdev_priv(net); - strlcpy (info->driver, dev->driver_name, sizeof info->driver); - strlcpy (info->fw_version, dev->driver_info->description, - sizeof info->fw_version); - usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); + strscpy(info->driver, dev->driver_name, sizeof(info->driver)); + strscpy(info->fw_version, dev->driver_info->description, + sizeof(info->fw_version)); + usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); } EXPORT_SYMBOL_GPL(usbnet_get_drvinfo); -u32 usbnet_get_msglevel (struct net_device *net) +u32 usbnet_get_msglevel(struct net_device *net) { struct usbnet *dev = netdev_priv(net); @@ -1070,7 +1103,7 @@ u32 usbnet_get_msglevel (struct net_device *net) } EXPORT_SYMBOL_GPL(usbnet_get_msglevel); -void usbnet_set_msglevel (struct net_device *net, u32 level) +void usbnet_set_msglevel(struct net_device *net, u32 level) { struct usbnet *dev = netdev_priv(net); @@ -1097,6 +1130,9 @@ static void __handle_link_change(struct usbnet *dev) if (!test_bit(EVENT_DEV_OPEN, &dev->flags)) return; + if (test_and_clear_bit(EVENT_LINK_CARRIER_ON, &dev->flags)) + netif_carrier_on(dev->net); + if (!netif_carrier_ok(dev->net)) { /* kill URBs for reading packets to save bus bandwidth */ unlink_urbs(dev, &dev->rxq); @@ -1107,7 +1143,7 @@ static void __handle_link_change(struct usbnet *dev) */ } else { /* submitting URBs for reading packets */ - tasklet_schedule(&dev->bh); + queue_work(system_bh_wq, &dev->bh_work); } /* hard_mtu or rx_urb_size may change during link change */ @@ -1138,75 +1174,77 @@ static void __handle_set_rx_mode(struct usbnet *dev) * especially now that control transfers can be queued. */ static void -usbnet_deferred_kevent (struct work_struct *work) +usbnet_deferred_kevent(struct work_struct *work) { struct usbnet *dev = container_of(work, struct usbnet, kevent); int status; /* usb_clear_halt() needs a thread context */ - if (test_bit (EVENT_TX_HALT, &dev->flags)) { - unlink_urbs (dev, &dev->txq); + if (test_bit(EVENT_TX_HALT, &dev->flags)) { + unlink_urbs(dev, &dev->txq); status = usb_autopm_get_interface(dev->intf); if (status < 0) goto fail_pipe; - status = usb_clear_halt (dev->udev, dev->out); + status = usb_clear_halt(dev->udev, dev->out); usb_autopm_put_interface(dev->intf); if (status < 0 && status != -EPIPE && status != -ESHUTDOWN) { - if (netif_msg_tx_err (dev)) + if (netif_msg_tx_err(dev)) fail_pipe: netdev_err(dev->net, "can't clear tx halt, status %d\n", status); } else { - clear_bit (EVENT_TX_HALT, &dev->flags); + clear_bit(EVENT_TX_HALT, &dev->flags); if (status != -ESHUTDOWN) - netif_wake_queue (dev->net); + netif_wake_queue(dev->net); } } - if (test_bit (EVENT_RX_HALT, &dev->flags)) { - unlink_urbs (dev, &dev->rxq); + if (test_bit(EVENT_RX_HALT, &dev->flags)) { + unlink_urbs(dev, &dev->rxq); status = usb_autopm_get_interface(dev->intf); if (status < 0) goto fail_halt; - status = usb_clear_halt (dev->udev, dev->in); + status = usb_clear_halt(dev->udev, dev->in); usb_autopm_put_interface(dev->intf); if (status < 0 && status != -EPIPE && status != -ESHUTDOWN) { - if (netif_msg_rx_err (dev)) + if (netif_msg_rx_err(dev)) fail_halt: netdev_err(dev->net, "can't clear rx halt, status %d\n", status); } else { - clear_bit (EVENT_RX_HALT, &dev->flags); - tasklet_schedule (&dev->bh); + clear_bit(EVENT_RX_HALT, &dev->flags); + if (!usbnet_going_away(dev)) + queue_work(system_bh_wq, &dev->bh_work); } } - /* tasklet could resubmit itself forever if memory is tight */ - if (test_bit (EVENT_RX_MEMORY, &dev->flags)) { + /* work could resubmit itself forever if memory is tight */ + if (test_bit(EVENT_RX_MEMORY, &dev->flags)) { struct urb *urb = NULL; int resched = 1; - if (netif_running (dev->net)) - urb = usb_alloc_urb (0, GFP_KERNEL); + if (netif_running(dev->net)) + urb = usb_alloc_urb(0, GFP_KERNEL); else - clear_bit (EVENT_RX_MEMORY, &dev->flags); + clear_bit(EVENT_RX_MEMORY, &dev->flags); if (urb != NULL) { - clear_bit (EVENT_RX_MEMORY, &dev->flags); + clear_bit(EVENT_RX_MEMORY, &dev->flags); status = usb_autopm_get_interface(dev->intf); if (status < 0) { usb_free_urb(urb); goto fail_lowmem; } - if (rx_submit (dev, urb, GFP_KERNEL) == -ENOLINK) + if (rx_submit(dev, urb, GFP_KERNEL) == -ENOLINK) resched = 0; usb_autopm_put_interface(dev->intf); fail_lowmem: if (resched) - tasklet_schedule (&dev->bh); + if (!usbnet_going_away(dev)) + queue_work(system_bh_wq, &dev->bh_work); } } @@ -1214,7 +1252,7 @@ fail_lowmem: const struct driver_info *info = dev->driver_info; int retval = 0; - clear_bit (EVENT_LINK_RESET, &dev->flags); + clear_bit(EVENT_LINK_RESET, &dev->flags); status = usb_autopm_get_interface(dev->intf); if (status < 0) goto skip_reset; @@ -1234,10 +1272,10 @@ skip_reset: __handle_link_change(dev); } - if (test_bit (EVENT_LINK_CHANGE, &dev->flags)) + if (test_bit(EVENT_LINK_CHANGE, &dev->flags)) __handle_link_change(dev); - if (test_bit (EVENT_SET_RX_MODE, &dev->flags)) + if (test_bit(EVENT_SET_RX_MODE, &dev->flags)) __handle_set_rx_mode(dev); @@ -1247,7 +1285,7 @@ skip_reset: /*-------------------------------------------------------------------------*/ -static void tx_complete (struct urb *urb) +static void tx_complete(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *) urb->context; struct skb_data *entry = (struct skb_data *) skb->cb; @@ -1258,15 +1296,15 @@ static void tx_complete (struct urb *urb) unsigned long flags; flags = u64_stats_update_begin_irqsave(&stats64->syncp); - stats64->tx_packets += entry->packets; - stats64->tx_bytes += entry->length; + u64_stats_add(&stats64->tx_packets, entry->packets); + u64_stats_add(&stats64->tx_bytes, entry->length); u64_stats_update_end_irqrestore(&stats64->syncp, flags); } else { dev->net->stats.tx_errors++; switch (urb->status) { case -EPIPE: - usbnet_defer_kevent (dev, EVENT_TX_HALT); + usbnet_defer_kevent(dev, EVENT_TX_HALT); break; /* software-driven interface shutdown */ @@ -1281,13 +1319,13 @@ static void tx_complete (struct urb *urb) case -ETIME: case -EILSEQ: usb_mark_last_busy(dev->udev); - if (!timer_pending (&dev->delay)) { - mod_timer (&dev->delay, - jiffies + THROTTLE_JIFFIES); + if (!timer_pending(&dev->delay)) { + mod_timer(&dev->delay, + jiffies + THROTTLE_JIFFIES); netif_dbg(dev, link, dev->net, "tx throttle %d\n", urb->status); } - netif_stop_queue (dev->net); + netif_stop_queue(dev->net); break; default: netif_dbg(dev, tx_err, dev->net, @@ -1302,12 +1340,12 @@ static void tx_complete (struct urb *urb) /*-------------------------------------------------------------------------*/ -void usbnet_tx_timeout (struct net_device *net, unsigned int txqueue) +void usbnet_tx_timeout(struct net_device *net, unsigned int txqueue) { struct usbnet *dev = netdev_priv(net); - unlink_urbs (dev, &dev->txq); - tasklet_schedule (&dev->bh); + unlink_urbs(dev, &dev->txq); + queue_work(system_bh_wq, &dev->bh_work); /* this needs to be handled individually because the generic layer * doesn't know what is sufficient and could not restore private * information if a remedy of an unconditional reset were used. @@ -1352,8 +1390,7 @@ static int build_dma_sg(const struct sk_buff *skb, struct urb *urb) return 1; } -netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, - struct net_device *net) +netdev_tx_t usbnet_start_xmit(struct sk_buff *skb, struct net_device *net) { struct usbnet *dev = netdev_priv(net); unsigned int length; @@ -1369,7 +1406,7 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, // some devices want funky USB-level framing, for // win32 driver (usually) and/or hardware quirks if (info->tx_fixup) { - skb = info->tx_fixup (dev, skb, GFP_ATOMIC); + skb = info->tx_fixup(dev, skb, GFP_ATOMIC); if (!skb) { /* packet collected; minidriver waiting for more */ if (info->flags & FLAG_MULTI_PACKET) @@ -1379,7 +1416,8 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, } } - if (!(urb = usb_alloc_urb (0, GFP_ATOMIC))) { + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) { netif_dbg(dev, tx_err, dev->net, "no urb\n"); goto drop; } @@ -1388,8 +1426,8 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, entry->urb = urb; entry->dev = dev; - usb_fill_bulk_urb (urb, dev->udev, dev->out, - skb->data, skb->len, tx_complete, skb); + usb_fill_bulk_urb(urb, dev->udev, dev->out, + skb->data, skb->len, tx_complete, skb); if (dev->can_dma_sg) { if (build_dma_sg(skb, urb) < 0) goto drop; @@ -1459,8 +1497,8 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) { case -EPIPE: - netif_stop_queue (net); - usbnet_defer_kevent (dev, EVENT_TX_HALT); + netif_stop_queue(net); + usbnet_defer_kevent(dev, EVENT_TX_HALT); usb_autopm_put_interface_async(dev->intf); break; default: @@ -1471,10 +1509,11 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, case 0: netif_trans_update(net); __usbnet_queue_skb(&dev->txq, skb, tx_start); + netdev_sent_queue(net, skb->len); if (dev->txq.qlen >= TX_QLEN (dev)) netif_stop_queue (net); } - spin_unlock_irqrestore (&dev->txq.lock, flags); + spin_unlock_irqrestore(&dev->txq.lock, flags); if (retval) { netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", retval); @@ -1482,7 +1521,7 @@ drop: dev->net->stats.tx_dropped++; not_drop: if (skb) - dev_kfree_skb_any (skb); + dev_kfree_skb_any(skb); if (urb) { kfree(urb->sg); usb_free_urb(urb); @@ -1519,13 +1558,22 @@ err: return ret; } +static inline void usb_free_skb(struct sk_buff *skb) +{ + struct skb_data *entry = (struct skb_data *)skb->cb; + + usb_free_urb(entry->urb); + dev_kfree_skb(skb); +} + /*-------------------------------------------------------------------------*/ -// tasklet (work deferred from completions, in_irq) or timer +// work (work deferred from completions, in_irq) or timer -static void usbnet_bh (struct timer_list *t) +static void usbnet_bh(struct timer_list *t) { - struct usbnet *dev = from_timer(dev, t, delay); + struct usbnet *dev = timer_container_of(dev, t, delay); + unsigned int bytes_compl = 0, pkts_compl = 0; struct sk_buff *skb; struct skb_data *entry; @@ -1533,21 +1581,26 @@ static void usbnet_bh (struct timer_list *t) entry = (struct skb_data *) skb->cb; switch (entry->state) { case rx_done: - entry->state = rx_cleanup; - rx_process (dev, skb); + if (rx_process(dev, skb)) + usb_free_skb(skb); continue; case tx_done: + bytes_compl += skb->len; + pkts_compl++; kfree(entry->urb->sg); fallthrough; case rx_cleanup: - usb_free_urb (entry->urb); - dev_kfree_skb (skb); + usb_free_skb(skb); continue; default: netdev_dbg(dev->net, "bogus skb state %d\n", entry->state); } } + spin_lock_bh(&dev->bql_spinlock); + netdev_completed_queue(dev->net, pkts_compl, bytes_compl); + spin_unlock_bh(&dev->bql_spinlock); + /* restart RX again after disabling due to high error rate */ clear_bit(EVENT_RX_KILL, &dev->flags); @@ -1562,6 +1615,7 @@ static void usbnet_bh (struct timer_list *t) } else if (netif_running (dev->net) && netif_device_present (dev->net) && netif_carrier_ok(dev->net) && + !usbnet_going_away(dev) && !timer_pending(&dev->delay) && !test_bit(EVENT_RX_PAUSED, &dev->flags) && !test_bit(EVENT_RX_HALT, &dev->flags)) { @@ -1575,16 +1629,16 @@ static void usbnet_bh (struct timer_list *t) "rxqlen %d --> %d\n", temp, dev->rxq.qlen); if (dev->rxq.qlen < RX_QLEN(dev)) - tasklet_schedule (&dev->bh); + queue_work(system_bh_wq, &dev->bh_work); } if (dev->txq.qlen < TX_QLEN (dev)) - netif_wake_queue (dev->net); + netif_wake_queue(dev->net); } } -static void usbnet_bh_tasklet(struct tasklet_struct *t) +static void usbnet_bh_work(struct work_struct *work) { - struct usbnet *dev = from_tasklet(dev, t, bh); + struct usbnet *dev = from_work(dev, work, bh_work); usbnet_bh(&dev->delay); } @@ -1598,39 +1652,44 @@ static void usbnet_bh_tasklet(struct tasklet_struct *t) // precondition: never called in_interrupt -void usbnet_disconnect (struct usb_interface *intf) +void usbnet_disconnect(struct usb_interface *intf) { struct usbnet *dev; struct usb_device *xdev; struct net_device *net; + struct urb *urb; dev = usb_get_intfdata(intf); usb_set_intfdata(intf, NULL); if (!dev) return; + usbnet_mark_going_away(dev); - xdev = interface_to_usbdev (intf); + xdev = interface_to_usbdev(intf); netif_info(dev, probe, dev->net, "unregister '%s' usb-%s-%s, %s\n", intf->dev.driver->name, xdev->bus->bus_name, xdev->devpath, dev->driver_info->description); - if (dev->driver_info->unbind) - dev->driver_info->unbind(dev, intf); - net = dev->net; - unregister_netdev (net); + unregister_netdev(net); cancel_work_sync(&dev->kevent); - usb_scuttle_anchored_urbs(&dev->deferred); + while ((urb = usb_get_from_anchor(&dev->deferred))) { + dev_kfree_skb(urb->context); + kfree(urb->sg); + usb_free_urb(urb); + } + + if (dev->driver_info->unbind) + dev->driver_info->unbind(dev, intf); usb_kill_urb(dev->interrupt); usb_free_urb(dev->interrupt); kfree(dev->padding_pkt); - free_percpu(net->tstats); free_netdev(net); } EXPORT_SYMBOL_GPL(usbnet_disconnect); @@ -1642,7 +1701,6 @@ static const struct net_device_ops usbnet_netdev_ops = { .ndo_tx_timeout = usbnet_tx_timeout, .ndo_set_rx_mode = usbnet_set_rx_mode, .ndo_change_mtu = usbnet_change_mtu, - .ndo_get_stats64 = dev_get_tstats64, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, }; @@ -1651,16 +1709,16 @@ static const struct net_device_ops usbnet_netdev_ops = { // precondition: never called in_interrupt -static struct device_type wlan_type = { +static const struct device_type wlan_type = { .name = "wlan", }; -static struct device_type wwan_type = { +static const struct device_type wwan_type = { .name = "wwan", }; int -usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) +usbnet_probe(struct usb_interface *udev, const struct usb_device_id *prod) { struct usbnet *dev; struct net_device *net; @@ -1686,7 +1744,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) dev_dbg (&udev->dev, "blacklisted by %s\n", name); return -ENODEV; } - xdev = interface_to_usbdev (udev); + xdev = interface_to_usbdev(udev); interface = udev->cur_altsetting; status = -ENOMEM; @@ -1707,10 +1765,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) dev->rx_speed = SPEED_UNSET; dev->tx_speed = SPEED_UNSET; - net->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); - if (!net->tstats) - goto out0; - dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK); init_waitqueue_head(&dev->wait); @@ -1718,17 +1772,17 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) skb_queue_head_init (&dev->txq); skb_queue_head_init (&dev->done); skb_queue_head_init(&dev->rxq_pause); - tasklet_setup(&dev->bh, usbnet_bh_tasklet); - INIT_WORK (&dev->kevent, usbnet_deferred_kevent); + spin_lock_init(&dev->bql_spinlock); + INIT_WORK(&dev->bh_work, usbnet_bh_work); + INIT_WORK(&dev->kevent, usbnet_deferred_kevent); init_usb_anchor(&dev->deferred); timer_setup(&dev->delay, usbnet_bh, 0); - mutex_init (&dev->phy_mutex); + mutex_init(&dev->phy_mutex); mutex_init(&dev->interrupt_mutex); dev->interrupt_count = 0; dev->net = net; strscpy(net->name, "usb%d", sizeof(net->name)); - eth_hw_addr_set(net, node_id); /* rx and tx sides can use different message sizes; * bind() should set rx_urb_size in that case. @@ -1740,20 +1794,20 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) net->netdev_ops = &usbnet_netdev_ops; net->watchdog_timeo = TX_TIMEOUT_JIFFIES; net->ethtool_ops = &usbnet_ethtool_ops; + net->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS; // allow device-specific bind/init procedures // NOTE net->name still not usable ... if (info->bind) { - status = info->bind (dev, udev); + status = info->bind(dev, udev); if (status < 0) goto out1; - // heuristic: "usb%d" for links we know are two-host, - // else "eth%d" when there's reasonable doubt. userspace - // can rename the link if it knows better. + /* heuristic: rename to "eth%d" if we are not sure this link + * is two-host (these links keep "usb%d") + */ if ((dev->driver_info->flags & FLAG_ETHER) != 0 && - ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 || - (net->dev_addr [0] & 0x02) == 0)) + !usbnet_needs_usb_name_format(dev, net)) strscpy(net->name, "eth%d", sizeof(net->name)); /* WLAN devices should always be named "wlan%d" */ if ((dev->driver_info->flags & FLAG_WLAN) != 0) @@ -1770,35 +1824,41 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if (net->mtu > (dev->hard_mtu - net->hard_header_len)) net->mtu = dev->hard_mtu - net->hard_header_len; } else if (!info->in || !info->out) - status = usbnet_get_endpoints (dev, udev); + status = usbnet_get_endpoints(dev, udev); else { - dev->in = usb_rcvbulkpipe (xdev, info->in); - dev->out = usb_sndbulkpipe (xdev, info->out); + u8 ep_addrs[3] = { + info->in + USB_DIR_IN, info->out + USB_DIR_OUT, 0 + }; + + dev->in = usb_rcvbulkpipe(xdev, info->in); + dev->out = usb_sndbulkpipe(xdev, info->out); if (!(info->flags & FLAG_NO_SETINT)) - status = usb_set_interface (xdev, - interface->desc.bInterfaceNumber, - interface->desc.bAlternateSetting); + status = usb_set_interface(xdev, + interface->desc.bInterfaceNumber, + interface->desc.bAlternateSetting); else status = 0; + if (status == 0 && !usb_check_bulk_endpoints(udev, ep_addrs)) + status = -EINVAL; } if (status >= 0 && dev->status) - status = init_status (dev, udev); + status = init_status(dev, udev); if (status < 0) goto out3; if (!dev->rx_urb_size) dev->rx_urb_size = dev->hard_mtu; - dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); + dev->maxpacket = usb_maxpacket(dev->udev, dev->out); if (dev->maxpacket == 0) { /* that is a broken device */ status = -ENODEV; goto out4; } - /* let userspace know we have a random address */ - if (ether_addr_equal(net->dev_addr, node_id)) - net->addr_assign_type = NET_ADDR_RANDOM; + /* this flags the device for user space */ + if (!is_valid_ether_addr(net->dev_addr)) + eth_hw_addr_random(net); if ((dev->driver_info->flags & FLAG_WLAN) != 0) SET_NETDEV_DEVTYPE(net, &wlan_type); @@ -1817,7 +1877,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) } } - status = register_netdev (net); + status = register_netdev(net); if (status) goto out5; netif_info(dev, probe, dev->net, @@ -1828,9 +1888,9 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) net->dev_addr); // ok, it's ready to go. - usb_set_intfdata (udev, dev); + usb_set_intfdata(udev, dev); - netif_device_attach (net); + netif_device_attach(net); if (dev->driver_info->flags & FLAG_LINK_INTR) usbnet_link_change(dev, 0, 0); @@ -1843,17 +1903,16 @@ out4: usb_free_urb(dev->interrupt); out3: if (info->unbind) - info->unbind (dev, udev); + info->unbind(dev, udev); out1: /* subdrivers must undo all they did in bind() if they * fail it, but we may fail later and a deferred kevent * may trigger an error resubmitting itself and, worse, * schedule a timer. So we kill it all just in case. */ + usbnet_mark_going_away(dev); cancel_work_sync(&dev->kevent); - del_timer_sync(&dev->delay); - free_percpu(net->tstats); -out0: + timer_delete_sync(&dev->delay); free_netdev(net); out: return status; @@ -1867,7 +1926,7 @@ EXPORT_SYMBOL_GPL(usbnet_probe); * resume only when the last interface is resumed */ -int usbnet_suspend (struct usb_interface *intf, pm_message_t message) +int usbnet_suspend(struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); @@ -1886,7 +1945,7 @@ int usbnet_suspend (struct usb_interface *intf, pm_message_t message) * accelerate emptying of the rx and queues, to avoid * having everything error out. */ - netif_device_detach (dev->net); + netif_device_detach(dev->net); usbnet_terminate_urbs(dev); __usbnet_status_stop_force(dev); @@ -1894,13 +1953,13 @@ int usbnet_suspend (struct usb_interface *intf, pm_message_t message) * reattach so runtime management can use and * wake the device */ - netif_device_attach (dev->net); + netif_device_attach(dev->net); } return 0; } EXPORT_SYMBOL_GPL(usbnet_suspend); -int usbnet_resume (struct usb_interface *intf) +int usbnet_resume(struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); struct sk_buff *skb; @@ -1942,7 +2001,7 @@ int usbnet_resume (struct usb_interface *intf) if (!(dev->txq.qlen >= TX_QLEN(dev))) netif_tx_wake_all_queues(dev->net); - tasklet_schedule (&dev->bh); + queue_work(system_bh_wq, &dev->bh_work); } } @@ -1980,10 +2039,12 @@ EXPORT_SYMBOL(usbnet_manage_power); void usbnet_link_change(struct usbnet *dev, bool link, bool need_reset) { /* update link after link is reseted */ - if (link && !need_reset) - netif_carrier_on(dev->net); - else + if (link && !need_reset) { + set_bit(EVENT_LINK_CARRIER_ON, &dev->flags); + } else { + clear_bit(EVENT_LINK_CARRIER_ON, &dev->flags); netif_carrier_off(dev->net); + } if (need_reset && link) usbnet_defer_kevent(dev, EVENT_LINK_RESET); @@ -2004,7 +2065,7 @@ static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, cmd, reqtype, value, index, size); if (size) { - buf = kmalloc(size, GFP_KERNEL); + buf = kmalloc(size, GFP_NOIO); if (!buf) goto out; } @@ -2036,7 +2097,7 @@ static int __usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, cmd, reqtype, value, index, size); if (data) { - buf = kmemdup(data, size, GFP_KERNEL); + buf = kmemdup(data, size, GFP_NOIO); if (!buf) goto out; } else { @@ -2137,7 +2198,7 @@ static void usbnet_async_cmd_cb(struct urb *urb) int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, const void *data, u16 size) { - struct usb_ctrlrequest *req = NULL; + struct usb_ctrlrequest *req; struct urb *urb; int err = -ENOMEM; void *buf = NULL; @@ -2155,7 +2216,7 @@ int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, if (!buf) { netdev_err(dev->net, "Error allocating buffer" " in %s!\n", __func__); - goto fail_free; + goto fail_free_urb; } } @@ -2179,14 +2240,21 @@ int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, if (err < 0) { netdev_err(dev->net, "Error submitting the control" " message: status=%d\n", err); - goto fail_free; + goto fail_free_all; } return 0; +fail_free_all: + kfree(req); fail_free_buf: kfree(buf); -fail_free: - kfree(req); + /* + * avoid a double free + * needed because the flag can be set only + * after filling the URB + */ + urb->transfer_flags = 0; +fail_free_urb: usb_free_urb(urb); fail: return err; @@ -2201,7 +2269,6 @@ static int __init usbnet_init(void) BUILD_BUG_ON( sizeof_field(struct sk_buff, cb) < sizeof(struct skb_data)); - eth_random_addr(node_id); return 0; } module_init(usbnet_init); diff --git a/drivers/net/usb/zaurus.c b/drivers/net/usb/zaurus.c index 8e717a0b559b..df3617c4c44e 100644 --- a/drivers/net/usb/zaurus.c +++ b/drivers/net/usb/zaurus.c @@ -256,6 +256,11 @@ static const struct usb_device_id products [] = { .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ .bInterfaceProtocol = USB_CDC_PROTO_NONE +#define ZAURUS_FAKE_INTERFACE \ + .bInterfaceClass = USB_CLASS_COMM, \ + .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \ + .bInterfaceProtocol = USB_CDC_PROTO_NONE + /* SA-1100 based Sharp Zaurus ("collie"), or compatible. */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO @@ -284,11 +289,25 @@ static const struct usb_device_id products [] = { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, + .idProduct = 0x8005, /* A-300 */ + ZAURUS_FAKE_INTERFACE, + .driver_info = (unsigned long)&bogus_mdlm_info, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, .idProduct = 0x8006, /* B-500/SL-5600 */ ZAURUS_MASTER_INTERFACE, .driver_info = ZAURUS_PXA_INFO, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8006, /* B-500/SL-5600 */ + ZAURUS_FAKE_INTERFACE, + .driver_info = (unsigned long)&bogus_mdlm_info, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, .idProduct = 0x8007, /* C-700 */ @@ -296,6 +315,13 @@ static const struct usb_device_id products [] = { .driver_info = ZAURUS_PXA_INFO, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8007, /* C-700 */ + ZAURUS_FAKE_INTERFACE, + .driver_info = (unsigned long)&bogus_mdlm_info, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, .idProduct = 0x9031, /* C-750 C-760 */ @@ -315,6 +341,13 @@ static const struct usb_device_id products [] = { .driver_info = ZAURUS_PXA_INFO, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9032, /* SL-6000 */ + ZAURUS_FAKE_INTERFACE, + .driver_info = (unsigned long)&bogus_mdlm_info, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, /* reported with some C860 units */ |