diff options
Diffstat (limited to 'drivers/usb/net/usbnet.c')
| -rw-r--r-- | drivers/usb/net/usbnet.c | 936 |
1 files changed, 47 insertions, 889 deletions
diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c index 57b41fbd3bb8..99a488140140 100644 --- a/drivers/usb/net/usbnet.c +++ b/drivers/usb/net/usbnet.c @@ -3,8 +3,6 @@ * Copyright (C) 2000-2005 by David Brownell * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz> * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> - * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> - * Copyright (c) 2002-2003 TiVo Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -156,9 +154,6 @@ #define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) #define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) -/* packets are always ethernet, sometimes wrapped in other framing */ -#define MIN_PACKET sizeof(struct ethhdr) - // reawaken network queue this soon after stopping; else watchdog barks #define TX_TIMEOUT_JIFFIES (5*HZ) @@ -186,11 +181,7 @@ MODULE_PARM_DESC (msg_level, "Override default message level"); /*-------------------------------------------------------------------------*/ -static void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *); static u32 usbnet_get_link (struct net_device *); -static u32 usbnet_get_msglevel (struct net_device *); -static void usbnet_set_msglevel (struct net_device *, u32); -static void defer_kevent (struct usbnet *, int); /* mostly for PDA style devices, which are always connected if present */ static int always_connected (struct usbnet *dev) @@ -199,8 +190,7 @@ static int always_connected (struct usbnet *dev) } /* handles CDC Ethernet and many other network "bulk data" interfaces */ -static int -get_endpoints (struct usbnet *dev, struct usb_interface *intf) +int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf) { int tmp; struct usb_host_interface *alt = NULL; @@ -264,6 +254,7 @@ get_endpoints (struct usbnet *dev, struct usb_interface *intf) dev->status = status; return 0; } +EXPORT_SYMBOL_GPL(usbnet_get_endpoints); static void intr_complete (struct urb *urb, struct pt_regs *regs); @@ -303,7 +294,11 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf) return 0; } -static void skb_return (struct usbnet *dev, struct sk_buff *skb) +/* Passes this packet up the stack, updating its accounting. + * 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) { int status; @@ -320,784 +315,7 @@ static void skb_return (struct usbnet *dev, struct sk_buff *skb) if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev)) devdbg (dev, "netif_rx status %d", status); } - - -#ifdef CONFIG_USB_AX8817X -/* ASIX AX8817X based USB 2.0 Ethernet Devices */ - -#define HAVE_HARDWARE -#define NEED_MII - -#include <linux/crc32.h> - -#define AX_CMD_SET_SW_MII 0x06 -#define AX_CMD_READ_MII_REG 0x07 -#define AX_CMD_WRITE_MII_REG 0x08 -#define AX_CMD_SET_HW_MII 0x0a -#define AX_CMD_READ_EEPROM 0x0b -#define AX_CMD_WRITE_EEPROM 0x0c -#define AX_CMD_WRITE_ENABLE 0x0d -#define AX_CMD_WRITE_DISABLE 0x0e -#define AX_CMD_WRITE_RX_CTL 0x10 -#define AX_CMD_READ_IPG012 0x11 -#define AX_CMD_WRITE_IPG0 0x12 -#define AX_CMD_WRITE_IPG1 0x13 -#define AX_CMD_WRITE_IPG2 0x14 -#define AX_CMD_WRITE_MULTI_FILTER 0x16 -#define AX_CMD_READ_NODE_ID 0x17 -#define AX_CMD_READ_PHY_ID 0x19 -#define AX_CMD_READ_MEDIUM_STATUS 0x1a -#define AX_CMD_WRITE_MEDIUM_MODE 0x1b -#define AX_CMD_READ_MONITOR_MODE 0x1c -#define AX_CMD_WRITE_MONITOR_MODE 0x1d -#define AX_CMD_WRITE_GPIOS 0x1f -#define AX_CMD_SW_RESET 0x20 -#define AX_CMD_SW_PHY_STATUS 0x21 -#define AX_CMD_SW_PHY_SELECT 0x22 -#define AX88772_CMD_READ_NODE_ID 0x13 - -#define AX_MONITOR_MODE 0x01 -#define AX_MONITOR_LINK 0x02 -#define AX_MONITOR_MAGIC 0x04 -#define AX_MONITOR_HSFS 0x10 - -/* AX88172 Medium Status Register values */ -#define AX_MEDIUM_FULL_DUPLEX 0x02 -#define AX_MEDIUM_TX_ABORT_ALLOW 0x04 -#define AX_MEDIUM_FLOW_CONTROL_EN 0x10 - -#define AX_MCAST_FILTER_SIZE 8 -#define AX_MAX_MCAST 64 - -#define AX_EEPROM_LEN 0x40 - -#define AX_SWRESET_CLEAR 0x00 -#define AX_SWRESET_RR 0x01 -#define AX_SWRESET_RT 0x02 -#define AX_SWRESET_PRTE 0x04 -#define AX_SWRESET_PRL 0x08 -#define AX_SWRESET_BZ 0x10 -#define AX_SWRESET_IPRL 0x20 -#define AX_SWRESET_IPPD 0x40 - -#define AX88772_IPG0_DEFAULT 0x15 -#define AX88772_IPG1_DEFAULT 0x0c -#define AX88772_IPG2_DEFAULT 0x12 - -#define AX88772_MEDIUM_FULL_DUPLEX 0x0002 -#define AX88772_MEDIUM_RESERVED 0x0004 -#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010 -#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020 -#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080 -#define AX88772_MEDIUM_RX_ENABLE 0x0100 -#define AX88772_MEDIUM_100MB 0x0200 -#define AX88772_MEDIUM_DEFAULT \ - (AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \ - AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \ - AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE ) - -#define AX_EEPROM_MAGIC 0xdeadbeef - -/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */ -struct ax8817x_data { - u8 multi_filter[AX_MCAST_FILTER_SIZE]; -}; - -struct ax88172_int_data { - u16 res1; - u8 link; - u16 res2; - u8 status; - u16 res3; -} __attribute__ ((packed)); - -static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data) -{ - return usb_control_msg( - dev->udev, - usb_rcvctrlpipe(dev->udev, 0), - cmd, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, - index, - data, - size, - CONTROL_TIMEOUT_MS); -} - -static int ax8817x_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data) -{ - return usb_control_msg( - dev->udev, - usb_sndctrlpipe(dev->udev, 0), - cmd, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, - index, - data, - size, - CONTROL_TIMEOUT_MS); -} - -static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs) -{ - struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; - - if (urb->status < 0) - printk(KERN_DEBUG "ax8817x_async_cmd_callback() failed with %d", - urb->status); - - kfree(req); - usb_free_urb(urb); -} - -static void ax8817x_status(struct usbnet *dev, struct urb *urb) -{ - struct ax88172_int_data *event; - int link; - - if (urb->actual_length < 8) - return; - - event = urb->transfer_buffer; - link = event->link & 0x01; - if (netif_carrier_ok(dev->net) != link) { - if (link) { - netif_carrier_on(dev->net); - defer_kevent (dev, EVENT_LINK_RESET ); - } else - netif_carrier_off(dev->net); - devdbg(dev, "ax8817x - Link Status is: %d", link); - } -} - -static void ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data) -{ - struct usb_ctrlrequest *req; - int status; - struct urb *urb; - - if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) { - devdbg(dev, "Error allocating URB in write_cmd_async!"); - return; - } - - if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) { - deverr(dev, "Failed to allocate memory for control request"); - usb_free_urb(urb); - return; - } - - req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; - req->bRequest = cmd; - req->wValue = cpu_to_le16(value); - req->wIndex = cpu_to_le16(index); - req->wLength = cpu_to_le16(size); - - usb_fill_control_urb(urb, dev->udev, - usb_sndctrlpipe(dev->udev, 0), - (void *)req, data, size, - ax8817x_async_cmd_callback, req); - - if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { - deverr(dev, "Error submitting the control message: status=%d", status); - kfree(req); - usb_free_urb(urb); - } -} - -static void ax8817x_set_multicast(struct net_device *net) -{ - struct usbnet *dev = netdev_priv(net); - struct ax8817x_data *data = (struct ax8817x_data *)&dev->data; - u8 rx_ctl = 0x8c; - - if (net->flags & IFF_PROMISC) { - rx_ctl |= 0x01; - } else if (net->flags & IFF_ALLMULTI - || net->mc_count > AX_MAX_MCAST) { - rx_ctl |= 0x02; - } else if (net->mc_count == 0) { - /* just broadcast and directed */ - } else { - /* We use the 20 byte dev->data - * for our 8 byte filter buffer - * to avoid allocating memory that - * is tricky to free later */ - struct dev_mc_list *mc_list = net->mc_list; - u32 crc_bits; - int i; - - memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); - - /* Build the multicast hash filter. */ - for (i = 0; i < net->mc_count; i++) { - crc_bits = - ether_crc(ETH_ALEN, - mc_list->dmi_addr) >> 26; - data->multi_filter[crc_bits >> 3] |= - 1 << (crc_bits & 7); - mc_list = mc_list->next; - } - - ax8817x_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, - AX_MCAST_FILTER_SIZE, data->multi_filter); - - rx_ctl |= 0x10; - } - - ax8817x_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); -} - -static int ax8817x_mdio_read(struct net_device *netdev, int phy_id, int loc) -{ - struct usbnet *dev = netdev_priv(netdev); - u16 res; - u8 buf[1]; - - ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf); - ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res); - ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf); - - return res & 0xffff; -} - -static void ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) -{ - struct usbnet *dev = netdev_priv(netdev); - u16 res = val; - u8 buf[1]; - - ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf); - ax8817x_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res); - ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf); -} - -static int ax88172_link_reset(struct usbnet *dev) -{ - u16 lpa; - u8 mode; - - mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN; - lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA); - if (lpa & LPA_DUPLEX) - mode |= AX_MEDIUM_FULL_DUPLEX; - ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); - - return 0; -} - -static void ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) -{ - struct usbnet *dev = netdev_priv(net); - u8 opt; - - if (ax8817x_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { - wolinfo->supported = 0; - wolinfo->wolopts = 0; - return; - } - wolinfo->supported = WAKE_PHY | WAKE_MAGIC; - wolinfo->wolopts = 0; - if (opt & AX_MONITOR_MODE) { - if (opt & AX_MONITOR_LINK) - wolinfo->wolopts |= WAKE_PHY; - if (opt & AX_MONITOR_MAGIC) - wolinfo->wolopts |= WAKE_MAGIC; - } -} - -static int ax8817x_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) -{ - struct usbnet *dev = netdev_priv(net); - u8 opt = 0; - u8 buf[1]; - - if (wolinfo->wolopts & WAKE_PHY) - opt |= AX_MONITOR_LINK; - if (wolinfo->wolopts & WAKE_MAGIC) - opt |= AX_MONITOR_MAGIC; - if (opt != 0) - opt |= AX_MONITOR_MODE; - - if (ax8817x_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, - opt, 0, 0, &buf) < 0) - return -EINVAL; - - return 0; -} - -static int ax8817x_get_eeprom_len(struct net_device *net) -{ - return AX_EEPROM_LEN; -} - -static int ax8817x_get_eeprom(struct net_device *net, - struct ethtool_eeprom *eeprom, u8 *data) -{ - struct usbnet *dev = netdev_priv(net); - u16 *ebuf = (u16 *)data; - int i; - - /* Crude hack to ensure that we don't overwrite memory - * if an odd length is supplied - */ - if (eeprom->len % 2) - return -EINVAL; - - eeprom->magic = AX_EEPROM_MAGIC; - - /* ax8817x returns 2 bytes from eeprom on read */ - for (i=0; i < eeprom->len / 2; i++) { - if (ax8817x_read_cmd(dev, AX_CMD_READ_EEPROM, - eeprom->offset + i, 0, 2, &ebuf[i]) < 0) - return -EINVAL; - } - return 0; -} - -static void ax8817x_get_drvinfo (struct net_device *net, - struct ethtool_drvinfo *info) -{ - /* Inherit standard device info */ - usbnet_get_drvinfo(net, info); - info->eedump_len = 0x3e; -} - -static int ax8817x_get_settings(struct net_device *net, struct ethtool_cmd *cmd) -{ - struct usbnet *dev = netdev_priv(net); - - return mii_ethtool_gset(&dev->mii,cmd); -} - -static int ax8817x_set_settings(struct net_device *net, struct ethtool_cmd *cmd) -{ - struct usbnet *dev = netdev_priv(net); - - return mii_ethtool_sset(&dev->mii,cmd); -} - -/* We need to override some ethtool_ops so we require our - own structure so we don't interfere with other usbnet - devices that may be connected at the same time. */ -static struct ethtool_ops ax8817x_ethtool_ops = { - .get_drvinfo = ax8817x_get_drvinfo, - .get_link = ethtool_op_get_link, - .get_msglevel = usbnet_get_msglevel, - .set_msglevel = usbnet_set_msglevel, - .get_wol = ax8817x_get_wol, - .set_wol = ax8817x_set_wol, - .get_eeprom_len = ax8817x_get_eeprom_len, - .get_eeprom = ax8817x_get_eeprom, - .get_settings = ax8817x_get_settings, - .set_settings = ax8817x_set_settings, -}; - -static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf) -{ - int ret = 0; - void *buf; - int i; - unsigned long gpio_bits = dev->driver_info->data; - - get_endpoints(dev,intf); - - buf = kmalloc(ETH_ALEN, GFP_KERNEL); - if(!buf) { - ret = -ENOMEM; - goto out1; - } - - /* Toggle the GPIOs in a manufacturer/model specific way */ - for (i = 2; i >= 0; i--) { - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS, - (gpio_bits >> (i * 8)) & 0xff, 0, 0, - buf)) < 0) - goto out2; - msleep(5); - } - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x80, 0, 0, buf)) < 0) { - dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret); - goto out2; - } - - /* Get the MAC address */ - memset(buf, 0, ETH_ALEN); - if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, 6, buf)) < 0) { - dbg("read AX_CMD_READ_NODE_ID failed: %d", ret); - goto out2; - } - memcpy(dev->net->dev_addr, buf, ETH_ALEN); - - /* Get the PHY id */ - if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) { - dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret); - goto out2; - } else if (ret < 2) { - /* this should always return 2 bytes */ - dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", ret); - ret = -EIO; - goto out2; - } - - /* Initialize MII structure */ - dev->mii.dev = dev->net; - dev->mii.mdio_read = ax8817x_mdio_read; - dev->mii.mdio_write = ax8817x_mdio_write; - dev->mii.phy_id_mask = 0x3f; - dev->mii.reg_num_mask = 0x1f; - dev->mii.phy_id = *((u8 *)buf + 1); - - dev->net->set_multicast_list = ax8817x_set_multicast; - dev->net->ethtool_ops = &ax8817x_ethtool_ops; - - ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); - ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, - ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP); - mii_nway_restart(&dev->mii); - - if (dev->driver_info->flags & FLAG_FRAMING_AX) { - /* REVISIT: adjust hard_header_len too */ - dev->hard_mtu = 2048; - } - - return 0; -out2: - kfree(buf); -out1: - return ret; -} - -static struct ethtool_ops ax88772_ethtool_ops = { - .get_drvinfo = ax8817x_get_drvinfo, - .get_link = ethtool_op_get_link, - .get_msglevel = usbnet_get_msglevel, - .set_msglevel = usbnet_set_msglevel, - .get_wol = ax8817x_get_wol, - .set_wol = ax8817x_set_wol, - .get_eeprom_len = ax8817x_get_eeprom_len, - .get_eeprom = ax8817x_get_eeprom, - .get_settings = ax8817x_get_settings, - .set_settings = ax8817x_set_settings, -}; - -static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) -{ - int ret; - void *buf; - - get_endpoints(dev,intf); - - buf = kmalloc(6, GFP_KERNEL); - if(!buf) { - dbg ("Cannot allocate memory for buffer"); - ret = -ENOMEM; - goto out1; - } - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS, - 0x00B0, 0, 0, buf)) < 0) - goto out2; - - msleep(5); - if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0x0001, 0, 0, buf)) < 0) { - dbg("Select PHY #1 failed: %d", ret); - goto out2; - } - - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD, 0, 0, buf)) < 0) { - dbg("Failed to power down internal PHY: %d", ret); - goto out2; - } - - msleep(150); - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR, 0, 0, buf)) < 0) { - dbg("Failed to perform software reset: %d", ret); - goto out2; - } - - msleep(150); - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) { - dbg("Failed to set Internal/External PHY reset control: %d", ret); - goto out2; - } - - msleep(150); - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0000, 0, 0, - buf)) < 0) { - dbg("Failed to reset RX_CTL: %d", ret); - goto out2; - } - - /* Get the MAC address */ - memset(buf, 0, ETH_ALEN); - if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)) < 0) { - dbg("Failed to read MAC address: %d", ret); - goto out2; - } - memcpy(dev->net->dev_addr, buf, ETH_ALEN); - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, buf)) < 0) { - dbg("Enabling software MII failed: %d", ret); - goto out2; - } - - if (((ret = - ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, 0x0010, 2, 2, buf)) < 0) - || (*((u16 *)buf) != 0x003b)) { - dbg("Read PHY register 2 must be 0x3b00: %d", ret); - goto out2; - } - - /* Initialize MII structure */ - dev->mii.dev = dev->net; - dev->mii.mdio_read = ax8817x_mdio_read; - dev->mii.mdio_write = ax8817x_mdio_write; - dev->mii.phy_id_mask = 0xff; - dev->mii.reg_num_mask = 0xff; - - /* Get the PHY id */ - if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) { - dbg("Error reading PHY ID: %02x", ret); - goto out2; - } else if (ret < 2) { - /* this should always return 2 bytes */ - dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", - ret); - ret = -EIO; - goto out2; - } - dev->mii.phy_id = *((u8 *)buf + 1); - - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL, 0, 0, buf)) < 0) { - dbg("Set external PHY reset pin level: %d", ret); - goto out2; - } - msleep(150); - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) { - dbg("Set Internal/External PHY reset control: %d", ret); - goto out2; - } - msleep(150); - - - dev->net->set_multicast_list = ax8817x_set_multicast; - dev->net->ethtool_ops = &ax88772_ethtool_ops; - - ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); - ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, - ADVERTISE_ALL | ADVERTISE_CSMA); - mii_nway_restart(&dev->mii); - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) { - dbg("Write medium mode register: %d", ret); - goto out2; - } - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,AX88772_IPG2_DEFAULT, 0, buf)) < 0) { - dbg("Write IPG,IPG1,IPG2 failed: %d", ret); - goto out2; - } - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) { - dbg("Failed to set hardware MII: %02x", ret); - goto out2; - } - - /* Set RX_CTL to default values with 2k buffer, and enable cactus */ - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0, - buf)) < 0) { - dbg("Reset RX_CTL failed: %d", ret); - goto out2; - } - - kfree(buf); - - return 0; - -out2: - kfree(buf); -out1: - return ret; -} - -static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb) -{ - u32 *header; - char *packet; - struct sk_buff *ax_skb; - u16 size; - - header = (u32 *) skb->data; - le32_to_cpus(header); - packet = (char *)(header + 1); - - skb_pull(skb, 4); - - while (skb->len > 0) { - if ((short)(*header & 0x0000ffff) != - ~((short)((*header & 0xffff0000) >> 16))) { - devdbg(dev,"header length data is error"); - } - /* get the packet length */ - size = (u16) (*header & 0x0000ffff); - - if ((skb->len) - ((size + 1) & 0xfffe) == 0) - return 2; - if (size > ETH_FRAME_LEN) { - devdbg(dev,"invalid rx length %d", size); - return 0; - } - ax_skb = skb_clone(skb, GFP_ATOMIC); - if (ax_skb) { - ax_skb->len = size; - ax_skb->data = packet; - ax_skb->tail = packet + size; - skb_return(dev, ax_skb); - } else { - return 0; - } - - skb_pull(skb, (size + 1) & 0xfffe); - - if (skb->len == 0) - break; - - header = (u32 *) skb->data; - le32_to_cpus(header); - packet = (char *)(header + 1); - skb_pull(skb, 4); - } - - if (skb->len < 0) { - devdbg(dev,"invalid rx length %d", skb->len); - return 0; - } - return 1; -} - -static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb, - unsigned flags) -{ - int padlen; - int headroom = skb_headroom(skb); - int tailroom = skb_tailroom(skb); - u32 *packet_len; - u32 *padbytes_ptr; - - padlen = ((skb->len + 4) % 512) ? 0 : 4; - - if ((!skb_cloned(skb)) - && ((headroom + tailroom) >= (4 + padlen))) { - if ((headroom < 4) || (tailroom < padlen)) { - skb->data = memmove(skb->head + 4, skb->data, skb->len); - skb->tail = skb->data + skb->len; - } - } else { - struct sk_buff *skb2; - skb2 = skb_copy_expand(skb, 4, padlen, flags); - dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; - } - - packet_len = (u32 *) skb_push(skb, 4); - - packet_len = (u32 *) skb->data; - *packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4); - - if ((skb->len % 512) == 0) { - padbytes_ptr = (u32 *) skb->tail; - *padbytes_ptr = 0xffff0000; - skb_put(skb, padlen); - } - return skb; -} - -static int ax88772_link_reset(struct usbnet *dev) -{ - u16 lpa; - u16 mode; - - mode = AX88772_MEDIUM_DEFAULT; - lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA); - - if ((lpa & LPA_DUPLEX) == 0) - mode &= ~AX88772_MEDIUM_FULL_DUPLEX; - if ((lpa & LPA_100) == 0) - mode &= ~AX88772_MEDIUM_100MB; - ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); - - return 0; -} - -static const struct driver_info ax8817x_info = { - .description = "ASIX AX8817x USB 2.0 Ethernet", - .bind = ax8817x_bind, - .status = ax8817x_status, - .link_reset = ax88172_link_reset, - .reset = ax88172_link_reset, - .flags = FLAG_ETHER, - .data = 0x00130103, -}; - -static const struct driver_info dlink_dub_e100_info = { - .description = "DLink DUB-E100 USB Ethernet", - .bind = ax8817x_bind, - .status = ax8817x_status, - .link_reset = ax88172_link_reset, - .reset = ax88172_link_reset, - .flags = FLAG_ETHER, - .data = 0x009f9d9f, -}; - -static const struct driver_info netgear_fa120_info = { - .description = "Netgear FA-120 USB Ethernet", - .bind = ax8817x_bind, - .status = ax8817x_status, - .link_reset = ax88172_link_reset, - .reset = ax88172_link_reset, - .flags = FLAG_ETHER, - .data = 0x00130103, -}; - -static const struct driver_info hawking_uf200_info = { - .description = "Hawking UF200 USB Ethernet", - .bind = ax8817x_bind, - .status = ax8817x_status, - .link_reset = ax88172_link_reset, - .reset = ax88172_link_reset, - .flags = FLAG_ETHER, - .data = 0x001f1d1f, -}; - -static const struct driver_info ax88772_info = { - .description = "ASIX AX88772 USB 2.0 Ethernet", - .bind = ax88772_bind, - .status = ax8817x_status, - .link_reset = ax88772_link_reset, - .reset = ax88772_link_reset, - .flags = FLAG_ETHER | FLAG_FRAMING_AX, - .rx_fixup = ax88772_rx_fixup, - .tx_fixup = ax88772_tx_fixup, - .data = 0x00130103, -}; - -#endif /* CONFIG_USB_AX8817X */ - +EXPORT_SYMBOL_GPL(usbnet_skb_return); /*------------------------------------------------------------------------- @@ -1284,7 +502,7 @@ next_desc: status = usb_driver_claim_interface (&usbnet_driver, info->data, dev); if (status < 0) return status; - status = get_endpoints (dev, info->data); + status = usbnet_get_endpoints (dev, info->data); if (status < 0) { /* ensure immediate exit from usbnet_disconnect */ usb_set_intfdata(info->data, NULL); @@ -1721,7 +939,7 @@ static int genelink_rx_fixup (struct usbnet *dev, struct sk_buff *skb) // copy the packet data to the new skb memcpy(skb_put(gl_skb, size), packet->packet_data, size); - skb_return (dev, gl_skb); + usbnet_skb_return (dev, gl_skb); } // advance to the next packet @@ -2616,7 +1834,7 @@ next_desc: * bother to make it unique. Likewise there's no point in tracking * of the CDC event notifications. */ - return get_endpoints (dev, intf); + return usbnet_get_endpoints (dev, intf); bad_desc: dev_info (&dev->udev->dev, "unsupported MDLM descriptors\n"); @@ -2694,7 +1912,7 @@ static void defer_bh(struct usbnet *dev, struct sk_buff *skb, struct sk_buff_hea * NOTE: annoying asymmetry: if it's active, schedule_work() fails, * but tasklet_schedule() doesn't. hope the failure is rare. */ -static void 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)) @@ -2702,6 +1920,7 @@ static void defer_kevent (struct usbnet *dev, int work) else devdbg (dev, "kevent %d scheduled", work); } +EXPORT_SYMBOL_GPL(usbnet_defer_kevent); /*-------------------------------------------------------------------------*/ @@ -2713,14 +1932,12 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, unsigned flags) struct skb_data *entry; int retval = 0; unsigned long lockflags; - size_t size; + size_t size = dev->rx_urb_size; - size = max(dev->net->hard_header_len + dev->net->mtu, - (unsigned)ETH_FRAME_LEN); if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) { if (netif_msg_rx_err (dev)) devdbg (dev, "no rx skb"); - defer_kevent (dev, EVENT_RX_MEMORY); + usbnet_defer_kevent (dev, EVENT_RX_MEMORY); usb_free_urb (urb); return; } @@ -2742,10 +1959,10 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, unsigned flags) && !test_bit (EVENT_RX_HALT, &dev->flags)) { switch (retval = usb_submit_urb (urb, GFP_ATOMIC)){ case -EPIPE: - defer_kevent (dev, EVENT_RX_HALT); + usbnet_defer_kevent (dev, EVENT_RX_HALT); break; case -ENOMEM: - defer_kevent (dev, EVENT_RX_MEMORY); + usbnet_defer_kevent (dev, EVENT_RX_MEMORY); break; case -ENODEV: if (netif_msg_ifdown (dev)) @@ -2783,7 +2000,7 @@ static inline void rx_process (struct usbnet *dev, struct sk_buff *skb) // else network stack removes extra byte if we forced a short packet if (skb->len) - skb_return (dev, skb); + usbnet_skb_return (dev, skb); else { if (netif_msg_rx_err (dev)) devdbg (dev, "drop"); @@ -2824,7 +2041,7 @@ static void rx_complete (struct urb *urb, struct pt_regs *regs) // storm, recovering as needed. case -EPIPE: dev->stats.rx_errors++; - defer_kevent (dev, EVENT_RX_HALT); + usbnet_defer_kevent (dev, EVENT_RX_HALT); // FALLTHROUGH // software-driven interface shutdown @@ -3066,16 +2283,22 @@ done: /*-------------------------------------------------------------------------*/ -static void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) +/* ethtool methods; minidrivers may need to add some more, but + * they'll probably want to use this base set. + */ + +void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) { struct usbnet *dev = netdev_priv(net); + /* REVISIT don't always return "usbnet" */ strncpy (info->driver, driver_name, sizeof info->driver); strncpy (info->version, DRIVER_VERSION, sizeof info->version); strncpy (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); static u32 usbnet_get_link (struct net_device *net) { @@ -3089,32 +2312,29 @@ static u32 usbnet_get_link (struct net_device *net) return 1; } -static u32 usbnet_get_msglevel (struct net_device *net) +u32 usbnet_get_msglevel (struct net_device *net) { struct usbnet *dev = netdev_priv(net); return dev->msg_enable; } +EXPORT_SYMBOL_GPL(usbnet_get_msglevel); -static 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); dev->msg_enable = level; } +EXPORT_SYMBOL_GPL(usbnet_set_msglevel); -static int usbnet_ioctl (struct net_device *net, struct ifreq *rq, int cmd) -{ -#ifdef NEED_MII - { - struct usbnet *dev = netdev_priv(net); - - if (dev->mii.mdio_read != NULL && dev->mii.mdio_write != NULL) - return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); - } -#endif - return -EOPNOTSUPP; -} +/* drivers may override default ethtool_ops in their bind() routine */ +static struct ethtool_ops usbnet_ethtool_ops = { + .get_drvinfo = usbnet_get_drvinfo, + .get_link = usbnet_get_link, + .get_msglevel = usbnet_get_msglevel, + .set_msglevel = usbnet_set_msglevel, +}; /*-------------------------------------------------------------------------*/ @@ -3209,7 +2429,7 @@ static void tx_complete (struct urb *urb, struct pt_regs *regs) switch (urb->status) { case -EPIPE: - defer_kevent (dev, EVENT_TX_HALT); + usbnet_defer_kevent (dev, EVENT_TX_HALT); break; /* software-driven interface shutdown */ @@ -3339,7 +2559,7 @@ static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net) switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) { case -EPIPE: netif_stop_queue (net); - defer_kevent (dev, EVENT_TX_HALT); + usbnet_defer_kevent (dev, EVENT_TX_HALT); break; default: if (netif_msg_tx_err (dev)) @@ -3478,8 +2698,6 @@ EXPORT_SYMBOL_GPL(usbnet_disconnect); /*-------------------------------------------------------------------------*/ -static struct ethtool_ops usbnet_ethtool_ops; - // precondition: never called in_interrupt int @@ -3530,8 +2748,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) dev->net = net; strcpy (net->name, "usb%d"); memcpy (net->dev_addr, node_id, sizeof node_id); - dev->hard_mtu = net->mtu + net->hard_header_len; + /* rx and tx sides can use different message sizes; + * bind() should set rx_urb_size in that case. + */ + dev->hard_mtu = net->mtu + net->hard_header_len; #if 0 // dma_supported() is deeply broken on almost all architectures // possible with some EHCI controllers @@ -3546,7 +2767,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) net->stop = usbnet_stop; net->watchdog_timeo = TX_TIMEOUT_JIFFIES; net->tx_timeout = usbnet_tx_timeout; - net->do_ioctl = usbnet_ioctl; net->ethtool_ops = &usbnet_ethtool_ops; // allow device-specific bind/init procedures @@ -3563,8 +2783,8 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) /* maybe the remote can't receive an Ethernet MTU */ 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 = get_endpoints (dev, udev); + } else if (!info->in || !info->out) + status = usbnet_get_endpoints (dev, udev); else { dev->in = usb_rcvbulkpipe (xdev, info->in); dev->out = usb_sndbulkpipe (xdev, info->out); @@ -3581,6 +2801,8 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if (status < 0) goto out1; + if (!dev->rx_urb_size) + dev->rx_urb_size = dev->hard_mtu; dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); SET_NETDEV_DEV(net, &udev->dev); @@ -3662,62 +2884,6 @@ EXPORT_SYMBOL_GPL(usbnet_resume); static const struct usb_device_id products [] = { -#ifdef CONFIG_USB_AX8817X -{ - // Linksys USB200M - USB_DEVICE (0x077b, 0x2226), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Netgear FA120 - USB_DEVICE (0x0846, 0x1040), - .driver_info = (unsigned long) &netgear_fa120_info, -}, { - // DLink DUB-E100 - USB_DEVICE (0x2001, 0x1a00), - .driver_info = (unsigned long) &dlink_dub_e100_info, -}, { - // Intellinet, ST Lab USB Ethernet - USB_DEVICE (0x0b95, 0x1720), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Hawking UF200, TrendNet TU2-ET100 - USB_DEVICE (0x07b8, 0x420a), - .driver_info = (unsigned long) &hawking_uf200_info, -}, { - // Billionton Systems, USB2AR - USB_DEVICE (0x08dd, 0x90ff), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // ATEN UC210T - USB_DEVICE (0x0557, 0x2009), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Buffalo LUA-U2-KTX - USB_DEVICE (0x0411, 0x003d), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter" - USB_DEVICE (0x6189, 0x182d), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // corega FEther USB2-TX - USB_DEVICE (0x07aa, 0x0017), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Surecom EP-1427X-2 - USB_DEVICE (0x1189, 0x0893), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // goodway corp usb gwusb2e - USB_DEVICE (0x1631, 0x6200), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // ASIX AX88772 10/100 - USB_DEVICE (0x0b95, 0x7720), - .driver_info = (unsigned long) &ax88772_info, -}, -#endif - #ifdef CONFIG_USB_GENESYS { USB_DEVICE (0x05e3, 0x0502), // GL620USB-A @@ -3881,14 +3047,6 @@ static struct usb_driver usbnet_driver = { .resume = usbnet_resume, }; -/* Default ethtool_ops assigned. Devices can override in their bind() routine */ -static struct ethtool_ops usbnet_ethtool_ops = { - .get_drvinfo = usbnet_get_drvinfo, - .get_link = usbnet_get_link, - .get_msglevel = usbnet_get_msglevel, - .set_msglevel = usbnet_set_msglevel, -}; - /*-------------------------------------------------------------------------*/ static int __init usbnet_init(void) |