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692 lines
19 KiB
692 lines
19 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (c) 2012 Smith Micro Software, Inc. |
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* Copyright (c) 2012 Bjørn Mork <[email protected]> |
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* |
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* This driver is based on and reuse most of cdc_ncm, which is |
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* Copyright (C) ST-Ericsson 2010-2012 |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/netdevice.h> |
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#include <linux/ethtool.h> |
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#include <linux/if_vlan.h> |
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#include <linux/ip.h> |
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#include <linux/mii.h> |
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#include <linux/usb.h> |
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#include <linux/usb/cdc.h> |
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#include <linux/usb/usbnet.h> |
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#include <linux/usb/cdc-wdm.h> |
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#include <linux/usb/cdc_ncm.h> |
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#include <net/ipv6.h> |
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#include <net/addrconf.h> |
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#include <net/ipv6_stubs.h> |
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|
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/* alternative VLAN for IP session 0 if not untagged */ |
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#define MBIM_IPS0_VID 4094 |
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|
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/* driver specific data - must match cdc_ncm usage */ |
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struct cdc_mbim_state { |
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struct cdc_ncm_ctx *ctx; |
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atomic_t pmcount; |
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struct usb_driver *subdriver; |
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unsigned long _unused; |
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unsigned long flags; |
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}; |
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|
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/* flags for the cdc_mbim_state.flags field */ |
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enum cdc_mbim_flags { |
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FLAG_IPS0_VLAN = 1 << 0, /* IP session 0 is tagged */ |
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}; |
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|
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/* using a counter to merge subdriver requests with our own into a combined state */ |
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static int cdc_mbim_manage_power(struct usbnet *dev, int on) |
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{ |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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int rv = 0; |
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|
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dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__, atomic_read(&info->pmcount), on); |
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|
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if ((on && atomic_add_return(1, &info->pmcount) == 1) || (!on && atomic_dec_and_test(&info->pmcount))) { |
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/* need autopm_get/put here to ensure the usbcore sees the new value */ |
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rv = usb_autopm_get_interface(dev->intf); |
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dev->intf->needs_remote_wakeup = on; |
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if (!rv) |
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usb_autopm_put_interface(dev->intf); |
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} |
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return 0; |
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} |
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|
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static int cdc_mbim_wdm_manage_power(struct usb_interface *intf, int status) |
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{ |
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struct usbnet *dev = usb_get_intfdata(intf); |
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|
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/* can be called while disconnecting */ |
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if (!dev) |
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return 0; |
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|
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return cdc_mbim_manage_power(dev, status); |
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} |
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|
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static int cdc_mbim_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid) |
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{ |
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struct usbnet *dev = netdev_priv(netdev); |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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|
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/* creation of this VLAN is a request to tag IP session 0 */ |
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if (vid == MBIM_IPS0_VID) |
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info->flags |= FLAG_IPS0_VLAN; |
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else |
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if (vid >= 512) /* we don't map these to MBIM session */ |
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return -EINVAL; |
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return 0; |
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} |
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|
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static int cdc_mbim_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid) |
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{ |
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struct usbnet *dev = netdev_priv(netdev); |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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|
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/* this is a request for an untagged IP session 0 */ |
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if (vid == MBIM_IPS0_VID) |
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info->flags &= ~FLAG_IPS0_VLAN; |
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return 0; |
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} |
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|
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static const struct net_device_ops cdc_mbim_netdev_ops = { |
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.ndo_open = usbnet_open, |
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.ndo_stop = usbnet_stop, |
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.ndo_start_xmit = usbnet_start_xmit, |
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.ndo_tx_timeout = usbnet_tx_timeout, |
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.ndo_get_stats64 = dev_get_tstats64, |
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.ndo_change_mtu = cdc_ncm_change_mtu, |
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.ndo_set_mac_address = eth_mac_addr, |
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.ndo_validate_addr = eth_validate_addr, |
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.ndo_vlan_rx_add_vid = cdc_mbim_rx_add_vid, |
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.ndo_vlan_rx_kill_vid = cdc_mbim_rx_kill_vid, |
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}; |
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|
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/* Change the control interface altsetting and update the .driver_info |
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* pointer if the matching entry after changing class codes points to |
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* a different struct |
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*/ |
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static int cdc_mbim_set_ctrlalt(struct usbnet *dev, struct usb_interface *intf, u8 alt) |
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{ |
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struct usb_driver *driver = to_usb_driver(intf->dev.driver); |
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const struct usb_device_id *id; |
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struct driver_info *info; |
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int ret; |
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ret = usb_set_interface(dev->udev, |
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intf->cur_altsetting->desc.bInterfaceNumber, |
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alt); |
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if (ret) |
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return ret; |
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id = usb_match_id(intf, driver->id_table); |
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if (!id) |
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return -ENODEV; |
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info = (struct driver_info *)id->driver_info; |
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if (info != dev->driver_info) { |
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dev_dbg(&intf->dev, "driver_info updated to '%s'\n", |
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info->description); |
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dev->driver_info = info; |
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} |
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return 0; |
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} |
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|
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static int cdc_mbim_bind(struct usbnet *dev, struct usb_interface *intf) |
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{ |
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struct cdc_ncm_ctx *ctx; |
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struct usb_driver *subdriver = ERR_PTR(-ENODEV); |
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int ret = -ENODEV; |
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u8 data_altsetting = 1; |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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|
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/* should we change control altsetting on a NCM/MBIM function? */ |
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if (cdc_ncm_select_altsetting(intf) == CDC_NCM_COMM_ALTSETTING_MBIM) { |
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data_altsetting = CDC_NCM_DATA_ALTSETTING_MBIM; |
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ret = cdc_mbim_set_ctrlalt(dev, intf, CDC_NCM_COMM_ALTSETTING_MBIM); |
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if (ret) |
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goto err; |
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ret = -ENODEV; |
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} |
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/* we will hit this for NCM/MBIM functions if prefer_mbim is false */ |
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if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) |
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goto err; |
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ret = cdc_ncm_bind_common(dev, intf, data_altsetting, dev->driver_info->data); |
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if (ret) |
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goto err; |
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ctx = info->ctx; |
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|
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/* The MBIM descriptor and the status endpoint are required */ |
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if (ctx->mbim_desc && dev->status) |
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subdriver = usb_cdc_wdm_register(ctx->control, |
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&dev->status->desc, |
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le16_to_cpu(ctx->mbim_desc->wMaxControlMessage), |
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WWAN_PORT_MBIM, |
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cdc_mbim_wdm_manage_power); |
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if (IS_ERR(subdriver)) { |
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ret = PTR_ERR(subdriver); |
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cdc_ncm_unbind(dev, intf); |
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goto err; |
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} |
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/* can't let usbnet use the interrupt endpoint */ |
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dev->status = NULL; |
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info->subdriver = subdriver; |
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|
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/* MBIM cannot do ARP */ |
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dev->net->flags |= IFF_NOARP; |
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|
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/* no need to put the VLAN tci in the packet headers */ |
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dev->net->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_FILTER; |
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|
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/* monitor VLAN additions and removals */ |
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dev->net->netdev_ops = &cdc_mbim_netdev_ops; |
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err: |
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return ret; |
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} |
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static void cdc_mbim_unbind(struct usbnet *dev, struct usb_interface *intf) |
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{ |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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struct cdc_ncm_ctx *ctx = info->ctx; |
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|
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/* disconnect subdriver from control interface */ |
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if (info->subdriver && info->subdriver->disconnect) |
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info->subdriver->disconnect(ctx->control); |
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info->subdriver = NULL; |
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|
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/* let NCM unbind clean up both control and data interface */ |
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cdc_ncm_unbind(dev, intf); |
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} |
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|
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/* verify that the ethernet protocol is IPv4 or IPv6 */ |
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static bool is_ip_proto(__be16 proto) |
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{ |
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switch (proto) { |
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case htons(ETH_P_IP): |
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case htons(ETH_P_IPV6): |
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return true; |
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} |
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return false; |
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} |
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static struct sk_buff *cdc_mbim_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) |
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{ |
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struct sk_buff *skb_out; |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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struct cdc_ncm_ctx *ctx = info->ctx; |
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__le32 sign = cpu_to_le32(USB_CDC_MBIM_NDP16_IPS_SIGN); |
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u16 tci = 0; |
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bool is_ip; |
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u8 *c; |
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if (!ctx) |
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goto error; |
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if (skb) { |
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if (skb->len <= ETH_HLEN) |
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goto error; |
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/* Some applications using e.g. packet sockets will |
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* bypass the VLAN acceleration and create tagged |
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* ethernet frames directly. We primarily look for |
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* the accelerated out-of-band tag, but fall back if |
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* required |
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*/ |
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skb_reset_mac_header(skb); |
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if (vlan_get_tag(skb, &tci) < 0 && skb->len > VLAN_ETH_HLEN && |
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__vlan_get_tag(skb, &tci) == 0) { |
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is_ip = is_ip_proto(vlan_eth_hdr(skb)->h_vlan_encapsulated_proto); |
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skb_pull(skb, VLAN_ETH_HLEN); |
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} else { |
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is_ip = is_ip_proto(eth_hdr(skb)->h_proto); |
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skb_pull(skb, ETH_HLEN); |
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} |
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/* Is IP session <0> tagged too? */ |
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if (info->flags & FLAG_IPS0_VLAN) { |
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/* drop all untagged packets */ |
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if (!tci) |
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goto error; |
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/* map MBIM_IPS0_VID to IPS<0> */ |
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if (tci == MBIM_IPS0_VID) |
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tci = 0; |
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} |
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|
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/* mapping VLANs to MBIM sessions: |
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* no tag => IPS session <0> if !FLAG_IPS0_VLAN |
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* 1 - 255 => IPS session <vlanid> |
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* 256 - 511 => DSS session <vlanid - 256> |
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* 512 - 4093 => unsupported, drop |
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* 4094 => IPS session <0> if FLAG_IPS0_VLAN |
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*/ |
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switch (tci & 0x0f00) { |
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case 0x0000: /* VLAN ID 0 - 255 */ |
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if (!is_ip) |
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goto error; |
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c = (u8 *)&sign; |
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c[3] = tci; |
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break; |
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case 0x0100: /* VLAN ID 256 - 511 */ |
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if (is_ip) |
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goto error; |
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sign = cpu_to_le32(USB_CDC_MBIM_NDP16_DSS_SIGN); |
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c = (u8 *)&sign; |
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c[3] = tci; |
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break; |
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default: |
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netif_err(dev, tx_err, dev->net, |
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"unsupported tci=0x%04x\n", tci); |
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goto error; |
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} |
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} |
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spin_lock_bh(&ctx->mtx); |
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skb_out = cdc_ncm_fill_tx_frame(dev, skb, sign); |
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spin_unlock_bh(&ctx->mtx); |
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return skb_out; |
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error: |
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if (skb) |
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dev_kfree_skb_any(skb); |
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return NULL; |
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} |
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/* Some devices are known to send Neighbor Solicitation messages and |
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* require Neighbor Advertisement replies. The IPv6 core will not |
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* respond since IFF_NOARP is set, so we must handle them ourselves. |
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*/ |
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static void do_neigh_solicit(struct usbnet *dev, u8 *buf, u16 tci) |
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{ |
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struct ipv6hdr *iph = (void *)buf; |
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struct nd_msg *msg = (void *)(iph + 1); |
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struct net_device *netdev; |
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struct inet6_dev *in6_dev; |
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bool is_router; |
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|
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/* we'll only respond to requests from unicast addresses to |
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* our solicited node addresses. |
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*/ |
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if (!ipv6_addr_is_solict_mult(&iph->daddr) || |
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!(ipv6_addr_type(&iph->saddr) & IPV6_ADDR_UNICAST)) |
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return; |
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|
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/* need to send the NA on the VLAN dev, if any */ |
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rcu_read_lock(); |
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if (tci) { |
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netdev = __vlan_find_dev_deep_rcu(dev->net, htons(ETH_P_8021Q), |
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tci); |
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if (!netdev) { |
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rcu_read_unlock(); |
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return; |
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} |
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} else { |
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netdev = dev->net; |
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} |
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dev_hold(netdev); |
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rcu_read_unlock(); |
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|
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in6_dev = in6_dev_get(netdev); |
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if (!in6_dev) |
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goto out; |
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is_router = !!in6_dev->cnf.forwarding; |
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in6_dev_put(in6_dev); |
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|
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/* ipv6_stub != NULL if in6_dev_get returned an inet6_dev */ |
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ipv6_stub->ndisc_send_na(netdev, &iph->saddr, &msg->target, |
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is_router /* router */, |
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true /* solicited */, |
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false /* override */, |
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true /* inc_opt */); |
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out: |
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dev_put(netdev); |
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} |
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static bool is_neigh_solicit(u8 *buf, size_t len) |
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{ |
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struct ipv6hdr *iph = (void *)buf; |
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struct nd_msg *msg = (void *)(iph + 1); |
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|
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return (len >= sizeof(struct ipv6hdr) + sizeof(struct nd_msg) && |
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iph->nexthdr == IPPROTO_ICMPV6 && |
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msg->icmph.icmp6_code == 0 && |
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msg->icmph.icmp6_type == NDISC_NEIGHBOUR_SOLICITATION); |
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} |
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static struct sk_buff *cdc_mbim_process_dgram(struct usbnet *dev, u8 *buf, size_t len, u16 tci) |
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{ |
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__be16 proto = htons(ETH_P_802_3); |
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struct sk_buff *skb = NULL; |
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|
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if (tci < 256 || tci == MBIM_IPS0_VID) { /* IPS session? */ |
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if (len < sizeof(struct iphdr)) |
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goto err; |
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|
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switch (*buf & 0xf0) { |
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case 0x40: |
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proto = htons(ETH_P_IP); |
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break; |
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case 0x60: |
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if (is_neigh_solicit(buf, len)) |
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do_neigh_solicit(dev, buf, tci); |
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proto = htons(ETH_P_IPV6); |
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break; |
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default: |
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goto err; |
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} |
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} |
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|
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skb = netdev_alloc_skb_ip_align(dev->net, len + ETH_HLEN); |
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if (!skb) |
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goto err; |
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|
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/* add an ethernet header */ |
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skb_put(skb, ETH_HLEN); |
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skb_reset_mac_header(skb); |
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eth_hdr(skb)->h_proto = proto; |
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eth_zero_addr(eth_hdr(skb)->h_source); |
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memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN); |
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|
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/* add datagram */ |
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skb_put_data(skb, buf, len); |
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|
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/* map MBIM session to VLAN */ |
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if (tci) |
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__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tci); |
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err: |
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return skb; |
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} |
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|
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static int cdc_mbim_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) |
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{ |
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struct sk_buff *skb; |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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struct cdc_ncm_ctx *ctx = info->ctx; |
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int len; |
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int nframes; |
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int x; |
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int offset; |
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struct usb_cdc_ncm_ndp16 *ndp16; |
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struct usb_cdc_ncm_dpe16 *dpe16; |
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int ndpoffset; |
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int loopcount = 50; /* arbitrary max preventing infinite loop */ |
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u32 payload = 0; |
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u8 *c; |
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u16 tci; |
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|
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ndpoffset = cdc_ncm_rx_verify_nth16(ctx, skb_in); |
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if (ndpoffset < 0) |
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goto error; |
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next_ndp: |
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nframes = cdc_ncm_rx_verify_ndp16(skb_in, ndpoffset); |
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if (nframes < 0) |
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goto error; |
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|
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ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset); |
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|
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switch (ndp16->dwSignature & cpu_to_le32(0x00ffffff)) { |
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case cpu_to_le32(USB_CDC_MBIM_NDP16_IPS_SIGN): |
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c = (u8 *)&ndp16->dwSignature; |
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tci = c[3]; |
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/* tag IPS<0> packets too if MBIM_IPS0_VID exists */ |
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if (!tci && info->flags & FLAG_IPS0_VLAN) |
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tci = MBIM_IPS0_VID; |
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break; |
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case cpu_to_le32(USB_CDC_MBIM_NDP16_DSS_SIGN): |
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c = (u8 *)&ndp16->dwSignature; |
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tci = c[3] + 256; |
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break; |
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default: |
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netif_dbg(dev, rx_err, dev->net, |
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"unsupported NDP signature <0x%08x>\n", |
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le32_to_cpu(ndp16->dwSignature)); |
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goto err_ndp; |
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|
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} |
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|
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dpe16 = ndp16->dpe16; |
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for (x = 0; x < nframes; x++, dpe16++) { |
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offset = le16_to_cpu(dpe16->wDatagramIndex); |
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len = le16_to_cpu(dpe16->wDatagramLength); |
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|
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/* |
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* CDC NCM ch. 3.7 |
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* All entries after first NULL entry are to be ignored |
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*/ |
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if ((offset == 0) || (len == 0)) { |
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if (!x) |
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goto err_ndp; /* empty NTB */ |
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break; |
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} |
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|
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/* sanity checking */ |
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if (((offset + len) > skb_in->len) || (len > ctx->rx_max)) { |
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netif_dbg(dev, rx_err, dev->net, |
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"invalid frame detected (ignored) offset[%u]=%u, length=%u, skb=%p\n", |
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x, offset, len, skb_in); |
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if (!x) |
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goto err_ndp; |
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break; |
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} else { |
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skb = cdc_mbim_process_dgram(dev, skb_in->data + offset, len, tci); |
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if (!skb) |
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goto error; |
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usbnet_skb_return(dev, skb); |
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payload += len; /* count payload bytes in this NTB */ |
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} |
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} |
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err_ndp: |
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/* are there more NDPs to process? */ |
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ndpoffset = le16_to_cpu(ndp16->wNextNdpIndex); |
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if (ndpoffset && loopcount--) |
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goto next_ndp; |
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|
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/* update stats */ |
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ctx->rx_overhead += skb_in->len - payload; |
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ctx->rx_ntbs++; |
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|
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return 1; |
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error: |
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return 0; |
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} |
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|
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static int cdc_mbim_suspend(struct usb_interface *intf, pm_message_t message) |
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{ |
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int ret = -ENODEV; |
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struct usbnet *dev = usb_get_intfdata(intf); |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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struct cdc_ncm_ctx *ctx = info->ctx; |
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|
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if (!ctx) |
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goto error; |
|
|
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/* |
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* Both usbnet_suspend() and subdriver->suspend() MUST return 0 |
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* in system sleep context, otherwise, the resume callback has |
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* to recover device from previous suspend failure. |
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*/ |
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ret = usbnet_suspend(intf, message); |
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if (ret < 0) |
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goto error; |
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|
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if (intf == ctx->control && info->subdriver && info->subdriver->suspend) |
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ret = info->subdriver->suspend(intf, message); |
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if (ret < 0) |
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usbnet_resume(intf); |
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|
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error: |
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return ret; |
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} |
|
|
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static int cdc_mbim_resume(struct usb_interface *intf) |
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{ |
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int ret = 0; |
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struct usbnet *dev = usb_get_intfdata(intf); |
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struct cdc_mbim_state *info = (void *)&dev->data; |
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struct cdc_ncm_ctx *ctx = info->ctx; |
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bool callsub = (intf == ctx->control && info->subdriver && info->subdriver->resume); |
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|
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if (callsub) |
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ret = info->subdriver->resume(intf); |
|
if (ret < 0) |
|
goto err; |
|
ret = usbnet_resume(intf); |
|
if (ret < 0 && callsub) |
|
info->subdriver->suspend(intf, PMSG_SUSPEND); |
|
err: |
|
return ret; |
|
} |
|
|
|
static const struct driver_info cdc_mbim_info = { |
|
.description = "CDC MBIM", |
|
.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, |
|
.bind = cdc_mbim_bind, |
|
.unbind = cdc_mbim_unbind, |
|
.manage_power = cdc_mbim_manage_power, |
|
.rx_fixup = cdc_mbim_rx_fixup, |
|
.tx_fixup = cdc_mbim_tx_fixup, |
|
}; |
|
|
|
/* MBIM and NCM devices should not need a ZLP after NTBs with |
|
* dwNtbOutMaxSize length. Nevertheless, a number of devices from |
|
* different vendor IDs will fail unless we send ZLPs, forcing us |
|
* to make this the default. |
|
* |
|
* This default may cause a performance penalty for spec conforming |
|
* devices wanting to take advantage of optimizations possible without |
|
* ZLPs. A whitelist is added in an attempt to avoid this for devices |
|
* known to conform to the MBIM specification. |
|
* |
|
* All known devices supporting NCM compatibility mode are also |
|
* conforming to the NCM and MBIM specifications. For this reason, the |
|
* NCM subclass entry is also in the ZLP whitelist. |
|
*/ |
|
static const struct driver_info cdc_mbim_info_zlp = { |
|
.description = "CDC MBIM", |
|
.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_SEND_ZLP, |
|
.bind = cdc_mbim_bind, |
|
.unbind = cdc_mbim_unbind, |
|
.manage_power = cdc_mbim_manage_power, |
|
.rx_fixup = cdc_mbim_rx_fixup, |
|
.tx_fixup = cdc_mbim_tx_fixup, |
|
}; |
|
|
|
/* The spefication explicitly allows NDPs to be placed anywhere in the |
|
* frame, but some devices fail unless the NDP is placed after the IP |
|
* packets. Using the CDC_NCM_FLAG_NDP_TO_END flags to force this |
|
* behaviour. |
|
* |
|
* Note: The current implementation of this feature restricts each NTB |
|
* to a single NDP, implying that multiplexed sessions cannot share an |
|
* NTB. This might affect performance for multiplexed sessions. |
|
*/ |
|
static const struct driver_info cdc_mbim_info_ndp_to_end = { |
|
.description = "CDC MBIM", |
|
.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, |
|
.bind = cdc_mbim_bind, |
|
.unbind = cdc_mbim_unbind, |
|
.manage_power = cdc_mbim_manage_power, |
|
.rx_fixup = cdc_mbim_rx_fixup, |
|
.tx_fixup = cdc_mbim_tx_fixup, |
|
.data = CDC_NCM_FLAG_NDP_TO_END, |
|
}; |
|
|
|
/* Some modems (e.g. Telit LE922A6) do not work properly with altsetting |
|
* toggle done in cdc_ncm_bind_common. CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE |
|
* flag is used to avoid this procedure. |
|
*/ |
|
static const struct driver_info cdc_mbim_info_avoid_altsetting_toggle = { |
|
.description = "CDC MBIM", |
|
.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_SEND_ZLP, |
|
.bind = cdc_mbim_bind, |
|
.unbind = cdc_mbim_unbind, |
|
.manage_power = cdc_mbim_manage_power, |
|
.rx_fixup = cdc_mbim_rx_fixup, |
|
.tx_fixup = cdc_mbim_tx_fixup, |
|
.data = CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE, |
|
}; |
|
|
|
static const struct usb_device_id mbim_devs[] = { |
|
/* This duplicate NCM entry is intentional. MBIM devices can |
|
* be disguised as NCM by default, and this is necessary to |
|
* allow us to bind the correct driver_info to such devices. |
|
* |
|
* bind() will sort out this for us, selecting the correct |
|
* entry and reject the other |
|
*/ |
|
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), |
|
.driver_info = (unsigned long)&cdc_mbim_info, |
|
}, |
|
/* ZLP conformance whitelist: All Ericsson MBIM devices */ |
|
{ USB_VENDOR_AND_INTERFACE_INFO(0x0bdb, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), |
|
.driver_info = (unsigned long)&cdc_mbim_info, |
|
}, |
|
|
|
/* Some Huawei devices, ME906s-158 (12d1:15c1) and E3372 |
|
* (12d1:157d), are known to fail unless the NDP is placed |
|
* after the IP packets. Applying the quirk to all Huawei |
|
* devices is broader than necessary, but harmless. |
|
*/ |
|
{ USB_VENDOR_AND_INTERFACE_INFO(0x12d1, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), |
|
.driver_info = (unsigned long)&cdc_mbim_info_ndp_to_end, |
|
}, |
|
|
|
/* The HP lt4132 (03f0:a31d) is a rebranded Huawei ME906s-158, |
|
* therefore it too requires the above "NDP to end" quirk. |
|
*/ |
|
{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), |
|
.driver_info = (unsigned long)&cdc_mbim_info_ndp_to_end, |
|
}, |
|
|
|
/* Telit LE922A6 in MBIM composition */ |
|
{ USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x1041, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), |
|
.driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle, |
|
}, |
|
|
|
/* Telit LN920 */ |
|
{ USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x1061, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), |
|
.driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle, |
|
}, |
|
|
|
/* Telit FN990 */ |
|
{ 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, |
|
}, |
|
|
|
/* default entry */ |
|
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), |
|
.driver_info = (unsigned long)&cdc_mbim_info_zlp, |
|
}, |
|
{ |
|
}, |
|
}; |
|
MODULE_DEVICE_TABLE(usb, mbim_devs); |
|
|
|
static struct usb_driver cdc_mbim_driver = { |
|
.name = "cdc_mbim", |
|
.id_table = mbim_devs, |
|
.probe = usbnet_probe, |
|
.disconnect = usbnet_disconnect, |
|
.suspend = cdc_mbim_suspend, |
|
.resume = cdc_mbim_resume, |
|
.reset_resume = cdc_mbim_resume, |
|
.supports_autosuspend = 1, |
|
.disable_hub_initiated_lpm = 1, |
|
}; |
|
module_usb_driver(cdc_mbim_driver); |
|
|
|
MODULE_AUTHOR("Greg Suarez <[email protected]>"); |
|
MODULE_AUTHOR("Bjørn Mork <[email protected]>"); |
|
MODULE_DESCRIPTION("USB CDC MBIM host driver"); |
|
MODULE_LICENSE("GPL");
|
|
|