cdc-ncm: tag Ericsson WWAN devices (eg F5521gw) with FLAG_WWAN

Tag Ericsson NCM devices as WWAN modems, since they almost certainly all
are.  This way userspace clients know that the device requires further
setup on the AT-capable serial ports before connectivity is available.

Signed-off-by: Dan Williams <dcbw@redhat.com>

1 files changed, 45 insertions, 23 deletions

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 4b9513fcf275..f4ce5957df32 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -138,20 +138,7 @@ struct cdc_ncm_ctx {
 static void cdc_ncm_txpath_bh(unsigned long param);
 static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx);
 static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer);
-static const struct driver_info cdc_ncm_info;
 static struct usb_driver cdc_ncm_driver;
-static const struct ethtool_ops cdc_ncm_ethtool_ops;
-
-static const struct usb_device_id cdc_devs[] = {
-        { USB_INTERFACE_INFO(USB_CLASS_COMM,
-                USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
-                .driver_info = (unsigned long)&cdc_ncm_info,
-        },
-        {
-        },
-};
-
-MODULE_DEVICE_TABLE(usb, cdc_devs);
 
 static void
 cdc_ncm_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
@@ -454,6 +441,16 @@ static void cdc_ncm_free(struct cdc_ncm_ctx *ctx)
         kfree(ctx);
 }
 
+static const struct ethtool_ops cdc_ncm_ethtool_ops = {
+        .get_drvinfo = cdc_ncm_get_drvinfo,
+        .get_link = usbnet_get_link,
+        .get_msglevel = usbnet_get_msglevel,
+        .set_msglevel = usbnet_set_msglevel,
+        .get_settings = usbnet_get_settings,
+        .set_settings = usbnet_set_settings,
+        .nway_reset = usbnet_nway_reset,
+};
+
 static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf)
 {
         struct cdc_ncm_ctx *ctx;
@@ -1203,6 +1200,41 @@ static const struct driver_info cdc_ncm_info = {
         .tx_fixup = cdc_ncm_tx_fixup,
 };
 
+/* Same as cdc_ncm_info, but with FLAG_WWAN */
+static const struct driver_info wwan_info = {
+        .description = "Mobile Broadband Network Device",
+        .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+                        | FLAG_WWAN,
+        .bind = cdc_ncm_bind,
+        .unbind = cdc_ncm_unbind,
+        .check_connect = cdc_ncm_check_connect,
+        .manage_power = cdc_ncm_manage_power,
+        .status = cdc_ncm_status,
+        .rx_fixup = cdc_ncm_rx_fixup,
+        .tx_fixup = cdc_ncm_tx_fixup,
+};
+
+static const struct usb_device_id cdc_devs[] = {
+        /* Ericsson MBM devices like F5521gw */
+        { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+                | USB_DEVICE_ID_MATCH_VENDOR,
+          .idVendor = 0x0bdb,
+          .bInterfaceClass = USB_CLASS_COMM,
+          .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM,
+          .bInterfaceProtocol = USB_CDC_PROTO_NONE,
+          .driver_info = (unsigned long) &wwan_info,
+        },
+
+        /* Generic CDC-NCM devices */
+        { USB_INTERFACE_INFO(USB_CLASS_COMM,
+                USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+                .driver_info = (unsigned long)&cdc_ncm_info,
+        },
+        {
+        },
+};
+MODULE_DEVICE_TABLE(usb, cdc_devs);
+
 static struct usb_driver cdc_ncm_driver = {
         .name = "cdc_ncm",
         .id_table = cdc_devs,
@@ -1215,16 +1247,6 @@ static struct usb_driver cdc_ncm_driver = {
         .disable_hub_initiated_lpm = 1,
 };
 
-static const struct ethtool_ops cdc_ncm_ethtool_ops = {
-        .get_drvinfo = cdc_ncm_get_drvinfo,
-        .get_link = usbnet_get_link,
-        .get_msglevel = usbnet_get_msglevel,
-        .set_msglevel = usbnet_set_msglevel,
-        .get_settings = usbnet_get_settings,
-        .set_settings = usbnet_set_settings,
-        .nway_reset = usbnet_nway_reset,
-};
-
 module_usb_driver(cdc_ncm_driver);
 
 MODULE_AUTHOR("Hans Petter Selasky");