diff options
Diffstat (limited to 'drivers/usb/net/usbnet.c')
| -rw-r--r-- | drivers/usb/net/usbnet.c | 150 |
1 files changed, 116 insertions, 34 deletions
diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c index 54183e173a6d..6e39e9988259 100644 --- a/drivers/usb/net/usbnet.c +++ b/drivers/usb/net/usbnet.c @@ -61,8 +61,11 @@ * let the USB host controller be busy for 5msec or more before an irq * is required, under load. Jumbograms change the equation. */ -#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) -#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) +#define RX_MAX_QUEUE_MEMORY (60 * 1518) +#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? \ + (RX_MAX_QUEUE_MEMORY/(dev)->rx_urb_size) : 4) +#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? \ + (RX_MAX_QUEUE_MEMORY/(dev)->hard_mtu) : 4) // reawaken network queue this soon after stopping; else watchdog barks #define TX_TIMEOUT_JIFFIES (5*HZ) @@ -113,7 +116,7 @@ int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf) e = alt->endpoint + ep; switch (e->desc.bmAttributes) { case USB_ENDPOINT_XFER_INT: - if (!(e->desc.bEndpointAddress & USB_DIR_IN)) + if (!usb_endpoint_dir_in(&e->desc)) continue; intr = 1; /* FALLTHROUGH */ @@ -122,7 +125,7 @@ int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf) default: continue; } - if (e->desc.bEndpointAddress & USB_DIR_IN) { + if (usb_endpoint_dir_in(&e->desc)) { if (!intr && !in) in = e; else if (intr && !status) @@ -155,7 +158,7 @@ int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf) } EXPORT_SYMBOL_GPL(usbnet_get_endpoints); -static void intr_complete (struct urb *urb, struct pt_regs *regs); +static void intr_complete (struct urb *urb); static int init_status (struct usbnet *dev, struct usb_interface *intf) { @@ -176,9 +179,9 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf) period = max ((int) dev->status->desc.bInterval, (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3); - buf = kmalloc (maxp, SLAB_KERNEL); + buf = kmalloc (maxp, GFP_KERNEL); if (buf) { - dev->interrupt = usb_alloc_urb (0, SLAB_KERNEL); + dev->interrupt = usb_alloc_urb (0, GFP_KERNEL); if (!dev->interrupt) { kfree (buf); return -ENOMEM; @@ -227,13 +230,23 @@ static 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; + int old_hard_mtu = dev->hard_mtu; + int old_rx_urb_size = dev->rx_urb_size; - if (new_mtu <= 0 || ll_mtu > dev->hard_mtu) + if (new_mtu <= 0) return -EINVAL; // no second zero-length packet read wanted after mtu-sized packets if ((ll_mtu % dev->maxpacket) == 0) return -EDOM; net->mtu = new_mtu; + + dev->hard_mtu = net->mtu + net->hard_header_len; + if (dev->rx_urb_size == old_hard_mtu) { + dev->rx_urb_size = dev->hard_mtu; + if (dev->rx_urb_size > old_rx_urb_size) + usbnet_unlink_rx_urbs(dev); + } + return 0; } @@ -282,7 +295,7 @@ EXPORT_SYMBOL_GPL(usbnet_defer_kevent); /*-------------------------------------------------------------------------*/ -static void rx_complete (struct urb *urb, struct pt_regs *regs); +static void rx_complete (struct urb *urb); static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) { @@ -370,7 +383,7 @@ error: /*-------------------------------------------------------------------------*/ -static void rx_complete (struct urb *urb, struct pt_regs *regs) +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; @@ -412,9 +425,9 @@ static void rx_complete (struct urb *urb, struct pt_regs *regs) // we get controller i/o faults during khubd disconnect() delays. // throttle down resubmits, to avoid log floods; just temporarily, // so we still recover when the fault isn't a khubd delay. - case -EPROTO: // ehci - case -ETIMEDOUT: // ohci - case -EILSEQ: // uhci + case -EPROTO: + case -ETIME: + case -EILSEQ: dev->stats.rx_errors++; if (!timer_pending (&dev->delay)) { mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); @@ -454,7 +467,7 @@ block: devdbg (dev, "no read resubmitted"); } -static void intr_complete (struct urb *urb, struct pt_regs *regs) +static void intr_complete (struct urb *urb) { struct usbnet *dev = urb->context; int status = urb->status; @@ -521,6 +534,17 @@ static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q) return count; } +// Flush all pending rx urbs +// minidrivers may need to do this when the MTU changes + +void usbnet_unlink_rx_urbs(struct usbnet *dev) +{ + if (netif_running(dev->net)) { + (void) unlink_urbs (dev, &dev->rxq); + tasklet_schedule(&dev->bh); + } +} +EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs); /*-------------------------------------------------------------------------*/ @@ -530,7 +554,7 @@ static int usbnet_stop (struct net_device *net) { struct usbnet *dev = netdev_priv(net); int temp; - DECLARE_WAIT_QUEUE_HEAD (unlink_wakeup); + DECLARE_WAIT_QUEUE_HEAD_ONSTACK (unlink_wakeup); DECLARE_WAITQUEUE (wait, current); netif_stop_queue (net); @@ -629,7 +653,7 @@ static int usbnet_open (struct net_device *net) devinfo (dev, "open: enable queueing " "(rx %d, tx %d) mtu %d %s framing", - RX_QLEN (dev), TX_QLEN (dev), dev->net->mtu, + (int)RX_QLEN (dev), (int)TX_QLEN (dev), dev->net->mtu, framing); } @@ -645,20 +669,40 @@ done: * they'll probably want to use this base set. */ -void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) +#if defined(CONFIG_MII) || defined(CONFIG_MII_MODULE) +#define HAVE_MII + +int usbnet_get_settings (struct net_device *net, struct ethtool_cmd *cmd) { 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); + if (!dev->mii.mdio_read) + return -EOPNOTSUPP; + + return mii_ethtool_gset(&dev->mii, cmd); } -EXPORT_SYMBOL_GPL(usbnet_get_drvinfo); +EXPORT_SYMBOL_GPL(usbnet_get_settings); + +int usbnet_set_settings (struct net_device *net, struct ethtool_cmd *cmd) +{ + struct usbnet *dev = netdev_priv(net); + int retval; + + if (!dev->mii.mdio_write) + return -EOPNOTSUPP; + + retval = mii_ethtool_sset(&dev->mii, cmd); + + /* link speed/duplex might have changed */ + if (dev->driver_info->link_reset) + dev->driver_info->link_reset(dev); + + return retval; + +} +EXPORT_SYMBOL_GPL(usbnet_set_settings); -static u32 usbnet_get_link (struct net_device *net) +u32 usbnet_get_link (struct net_device *net) { struct usbnet *dev = netdev_priv(net); @@ -666,9 +710,40 @@ static u32 usbnet_get_link (struct net_device *net) if (dev->driver_info->check_connect) return dev->driver_info->check_connect (dev) == 0; + /* if the device has mii operations, use those */ + if (dev->mii.mdio_read) + return mii_link_ok(&dev->mii); + /* Otherwise, say we're up (to avoid breaking scripts) */ return 1; } +EXPORT_SYMBOL_GPL(usbnet_get_link); + +int usbnet_nway_reset(struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + + if (!dev->mii.mdio_write) + return -EOPNOTSUPP; + + return mii_nway_restart(&dev->mii); +} +EXPORT_SYMBOL_GPL(usbnet_nway_reset); + +#endif /* HAVE_MII */ + +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); u32 usbnet_get_msglevel (struct net_device *net) { @@ -688,8 +763,13 @@ EXPORT_SYMBOL_GPL(usbnet_set_msglevel); /* drivers may override default ethtool_ops in their bind() routine */ static struct ethtool_ops usbnet_ethtool_ops = { - .get_drvinfo = usbnet_get_drvinfo, +#ifdef HAVE_MII + .get_settings = usbnet_get_settings, + .set_settings = usbnet_set_settings, .get_link = usbnet_get_link, + .nway_reset = usbnet_nway_reset, +#endif + .get_drvinfo = usbnet_get_drvinfo, .get_msglevel = usbnet_get_msglevel, .set_msglevel = usbnet_set_msglevel, }; @@ -702,9 +782,10 @@ static struct ethtool_ops usbnet_ethtool_ops = { * especially now that control transfers can be queued. */ static void -kevent (void *data) +kevent (struct work_struct *work) { - struct usbnet *dev = data; + struct usbnet *dev = + container_of(work, struct usbnet, kevent); int status; /* usb_clear_halt() needs a thread context */ @@ -773,7 +854,7 @@ kevent (void *data) /*-------------------------------------------------------------------------*/ -static void tx_complete (struct urb *urb, struct pt_regs *regs) +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; @@ -797,9 +878,9 @@ static void tx_complete (struct urb *urb, struct pt_regs *regs) // like rx, tx gets controller i/o faults during khubd delays // and so it uses the same throttling mechanism. - case -EPROTO: // ehci - case -ETIMEDOUT: // ohci - case -EILSEQ: // uhci + case -EPROTO: + case -ETIME: + case -EILSEQ: if (!timer_pending (&dev->delay)) { mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); @@ -1066,10 +1147,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) skb_queue_head_init (&dev->done); dev->bh.func = usbnet_bh; dev->bh.data = (unsigned long) dev; - INIT_WORK (&dev->kevent, kevent, dev); + INIT_WORK (&dev->kevent, kevent); dev->delay.function = usbnet_bh; dev->delay.data = (unsigned long) dev; init_timer (&dev->delay); + mutex_init (&dev->phy_mutex); SET_MODULE_OWNER (net); dev->net = net; @@ -1201,7 +1283,7 @@ EXPORT_SYMBOL_GPL(usbnet_resume); static int __init usbnet_init(void) { /* compiler should optimize this out */ - BUG_ON (sizeof (((struct sk_buff *)0)->cb) + BUILD_BUG_ON (sizeof (((struct sk_buff *)0)->cb) < sizeof (struct skb_data)); random_ether_addr(node_id); |