sierra-directip: delete, replaced by upstream drivers

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34738 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 1123 deletions

diff --git a/package/system/sierra-directip/src/sierra_net.c b/package/system/sierra-directip/src/sierra_net.c
deleted file mode 100644
index f6057d9188..0000000000
--- a/package/system/sierra-directip/src/sierra_net.c
+++ /dev/null
@@ -1,1123 +0,0 @@
-/*
- * USB-to-WWAN Driver for Sierra Wireless modems
- *
- * Copyright (C) 2008 - 2011 Paxton Smith, Matthew Safar, Rory Filer
- *                          <linux@sierrawireless.com>
- *
- * Portions of this based on the cdc_ether driver by David Brownell (2003-2005)
- * and Ole Andre Vadla Ravnas (ActiveSync) (2006).
- *
- * IMPORTANT DISCLAIMER: This driver is not commercially supported by
- * Sierra Wireless. Use at your own risk.
- *
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#define DRIVER_VERSION "v.3.2"
-#define DRIVER_AUTHOR "Paxton Smith, Matthew Safar, Rory Filer"
-#define DRIVER_DESC "USB-to-WWAN Driver for Sierra Wireless modems"
-static const char driver_name[] = "sierra_net";
-
-/* if defined debug messages enabled */
-/*#define	DEBUG*/
-/* more debug messages */
-/*#define	VERBOSE*/
-/* Uncomment to force power level set to auto when attaching a device */
-/*#define POWER_LEVEL_AUTO*/
-
-#include <linux/module.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/usb.h>
-#include <linux/usb/cdc.h>
-#include <net/ip.h>
-#include <net/udp.h>
-#include <asm/unaligned.h>
-#include <linux/usb/usbnet.h>
-
-#define SWI_USB_REQUEST_GET_FW_ATTR	0x06
-#define SWI_GET_FW_ATTR_MASK		0x08
-#define SWI_GET_FW_ATTR_APM			0x2
-
-/* atomic counter partially included in MAC address to make sure 2 devices
- * do not end up with the same MAC - concept breaks in case of > 255 ifaces
- */
-static	atomic_t iface_counter = ATOMIC_INIT(0);
-
-/*
- * SYNC Timer Delay definition used to set the expiry time
- */
-#define SIERRA_NET_SYNCDELAY (2*HZ)
-
-/* Max. MTU supported. The modem buffers are limited to 1500 */
-#define SIERRA_NET_MAX_SUPPORTED_MTU	1500
-
-/* The SIERRA_NET_USBCTL_BUF_LEN defines a buffer size allocated for control
- * message reception ... and thus the max. received packet.
- * (May be the cause for parse_hip returning -EINVAL)
- */
-#define SIERRA_NET_USBCTL_BUF_LEN	1024
-
-/* The SIERRA_NET_RX_URB_SZ defines the receive urb size
- * for optimal throughput.
- */
-#define SIERRA_NET_RX_URB_SZ		1540
-
-/* list of interface numbers - used for constructing interface lists */
-struct sierra_net_iface_info {
-	const u32 infolen;	/* number of interface numbers on list */
-	const u8  *ifaceinfo;	/* pointer to the array holding the numbers */
-};
-
-struct sierra_net_info_data {
-	u16 rx_urb_size;
-	struct sierra_net_iface_info whitelist;
-};
-
-/* Private data structure */
-struct sierra_net_data {
-
-	u8 ethr_hdr_tmpl[ETH_HLEN]; /* ethernet header template for rx'd pkts */
-
-	u16 link_up;		/* air link up or down */
-	u8 tx_hdr_template[4];	/* part of HIP hdr for tx'd packets */
-
-	u8 sync_msg[4];		/* SYNC message */
-	u8 shdwn_msg[4];	/* Shutdown message */
-
-	/* Backpointer to the container */
-	struct usbnet *usbnet;
-
-	u8 ifnum;	/* interface number */
-
-/* Bit masks, must be a power of 2 */
-#define SIERRA_NET_EVENT_RESP_AVAIL    0x01
-#define SIERRA_NET_TIMER_EXPIRY        0x02
-	unsigned long kevent_flags;
-	struct work_struct sierra_net_kevent;
-	struct timer_list sync_timer; /* For retrying SYNC sequence */
-};
-
-struct param {
-	int is_present;
-	union {
-		void  *ptr;
-		u32    dword;
-		u16    word;
-		u8     byte;
-	};
-};
-
-/* HIP message type */
-#define SIERRA_NET_HIP_EXTENDEDID	0x7F
-#define SIERRA_NET_HIP_HSYNC_ID		0x60	/* Modem -> host */
-#define SIERRA_NET_HIP_RESTART_ID	0x62	/* Modem -> host */
-#define SIERRA_NET_HIP_MSYNC_ID		0x20	/* Host -> modem */
-#define SIERRA_NET_HIP_SHUTD_ID		0x26	/* Host -> modem */
-
-#define SIERRA_NET_HIP_EXT_IP_IN_ID   0x0202
-#define SIERRA_NET_HIP_EXT_IP_OUT_ID  0x0002
-
-/* 3G UMTS Link Sense Indication definitions */
-#define SIERRA_NET_HIP_LSI_UMTSID	0x78
-
-/* Reverse Channel Grant Indication HIP message */
-#define SIERRA_NET_HIP_RCGI		0x64
-
-/* LSI Protocol types */
-#define SIERRA_NET_PROTOCOL_UMTS      0x01
-/* LSI Coverage */
-#define SIERRA_NET_COVERAGE_NONE      0x00
-#define SIERRA_NET_COVERAGE_NOPACKET  0x01
-
-/* LSI Session */
-#define SIERRA_NET_SESSION_IDLE       0x00
-/* LSI Link types */
-#define SIERRA_NET_AS_LINK_TYPE_IPv4  0x00
-#define SIERRA_NET_AS_LINK_TYPE_IPv6  0x02
-
-struct lsi_umts {
-	u8 protocol;
-	u8 unused1;
-	__be16 length;
-	/* eventually use a union for the rest - assume umts for now */
-	u8 coverage;
-	u8 unused2[41];
-	u8 session_state;
-	u8 unused3[33];
-	u8 link_type;
-	u8 pdp_addr_len; /* NW-supplied PDP address len */
-	u8 pdp_addr[16]; /* NW-supplied PDP address (bigendian)) */
-	u8 unused4[23];
-	u8 dns1_addr_len; /* NW-supplied 1st DNS address len (bigendian) */
-	u8 dns1_addr[16]; /* NW-supplied 1st DNS address */
-	u8 dns2_addr_len; /* NW-supplied 2nd DNS address len */
-	u8 dns2_addr[16]; /* NW-supplied 2nd DNS address (bigendian)*/
-	u8 wins1_addr_len; /* NW-supplied 1st Wins address len */
-	u8 wins1_addr[16]; /* NW-supplied 1st Wins address (bigendian)*/
-	u8 wins2_addr_len; /* NW-supplied 2nd Wins address len */
-	u8 wins2_addr[16]; /* NW-supplied 2nd Wins address (bigendian) */
-	u8 unused5[4];
-	u8 gw_addr_len; /* NW-supplied GW address len */
-	u8 gw_addr[16]; /* NW-supplied GW address (bigendian) */
-	u8 reserved[8];
-} __packed;
-
-#define SIERRA_NET_LSI_COMMON_LEN      4
-#define SIERRA_NET_LSI_UMTS_LEN        (sizeof(struct lsi_umts))
-#define SIERRA_NET_LSI_UMTS_STATUS_LEN \
-	(SIERRA_NET_LSI_UMTS_LEN - SIERRA_NET_LSI_COMMON_LEN)
-
-/* Forward definitions */
-static void sierra_sync_timer(unsigned long syncdata);
-static int sierra_net_change_mtu(struct net_device *net, int new_mtu);
-
-/* Our own net device operations structure */
-static const struct net_device_ops sierra_net_device_ops = {
-	.ndo_open               = usbnet_open,
-	.ndo_stop               = usbnet_stop,
-	.ndo_start_xmit         = usbnet_start_xmit,
-	.ndo_tx_timeout         = usbnet_tx_timeout,
-	.ndo_change_mtu         = sierra_net_change_mtu,
-	.ndo_set_mac_address    = eth_mac_addr,
-	.ndo_validate_addr      = eth_validate_addr,
-};
-
-/* get private data associated with passed in usbnet device */
-static inline struct sierra_net_data *sierra_net_get_private(struct usbnet *dev)
-{
-	return (struct sierra_net_data *)dev->data[0];
-}
-
-/* set private data associated with passed in usbnet device */
-static inline void sierra_net_set_private(struct usbnet *dev,
-			struct sierra_net_data *priv)
-{
-	dev->data[0] = (unsigned long)priv;
-}
-
-/* is packet IP */
-static inline int is_ip(struct sk_buff *skb)
-{
-	return ((skb->protocol == cpu_to_be16(ETH_P_IP)) ||
-			(skb->protocol == cpu_to_be16(ETH_P_IPV6)));
-}
-
-/*
- * check passed in packet and make sure that:
- *  - it is linear (no scatter/gather)
- *  - it is ethernet (mac_header properly set)
- */
-static int check_ethip_packet(struct sk_buff *skb, struct usbnet *dev)
-{
-	skb_reset_mac_header(skb); /* ethernet header */
-
-	if (skb_is_nonlinear(skb)) {
-		netdev_err(dev->net, "Non linear buffer-dropping\n");
-		return 0;
-	}
-
-	if (!pskb_may_pull(skb, ETH_HLEN))
-		return 0;
-	skb->protocol = eth_hdr(skb)->h_proto;
-
-	return 1;
-}
-
-static const u8 *save16bit(struct param *p, const u8 *datap)
-{
-	p->is_present = 1;
-	p->word = get_unaligned_be16(datap);
-	return datap + sizeof(p->word);
-}
-
-static const u8 *save8bit(struct param *p, const u8 *datap)
-{
-	p->is_present = 1;
-	p->byte = *datap;
-	return datap + sizeof(p->byte);
-}
-
-/*----------------------------------------------------------------------------*
- *                              BEGIN HIP                                     *
- *----------------------------------------------------------------------------*/
-/* HIP header */
-#define SIERRA_NET_HIP_HDR_LEN 4
-/* Extended HIP header */
-#define SIERRA_NET_HIP_EXT_HDR_LEN 6
-
-struct hip_hdr {
-	int    hdrlen;
-	struct param payload_len;
-	struct param msgid;
-	struct param msgspecific;
-	struct param extmsgid;
-};
-
-static int parse_hip(const u8 *buf, const u32 buflen, struct hip_hdr *hh)
-{
-	const u8 *curp = buf;
-	int    padded;
-
-	if (buflen < SIERRA_NET_HIP_HDR_LEN)
-		return -EPROTO;
-
-	curp = save16bit(&hh->payload_len, curp);
-	curp = save8bit(&hh->msgid, curp);
-	curp = save8bit(&hh->msgspecific, curp);
-
-	padded = hh->msgid.byte & 0x80;
-	hh->msgid.byte &= 0x7F;			/* 7 bits */
-
-	hh->extmsgid.is_present = (hh->msgid.byte == SIERRA_NET_HIP_EXTENDEDID);
-	if (hh->extmsgid.is_present) {
-		if (buflen < SIERRA_NET_HIP_EXT_HDR_LEN)
-			return -EPROTO;
-
-		hh->payload_len.word &= 0x3FFF; /* 14 bits */
-
-		curp = save16bit(&hh->extmsgid, curp);
-		hh->extmsgid.word &= 0x03FF;	/* 10 bits */
-
-		hh->hdrlen = SIERRA_NET_HIP_EXT_HDR_LEN;
-	} else {
-		hh->payload_len.word &= 0x07FF;	/* 11 bits */
-		hh->hdrlen = SIERRA_NET_HIP_HDR_LEN;
-	}
-
-	if (padded) {
-		hh->hdrlen++;
-		hh->payload_len.word--;
-	}
-
-	/* if real packet shorter than the claimed length */
-	if (buflen < (hh->hdrlen + hh->payload_len.word))
-		return -EINVAL;
-
-	return 0;
-}
-
-static void build_hip(u8 *buf, const u16 payloadlen,
-		struct sierra_net_data *priv)
-{
-	/* the following doesn't have the full functionality. We
-	 * currently build only one kind of header, so it is faster this way
-	 */
-	put_unaligned_be16(payloadlen, buf);
-	memcpy(buf+2, priv->tx_hdr_template, sizeof(priv->tx_hdr_template));
-}
-/*----------------------------------------------------------------------------*
- *                              END HIP                                       *
- *----------------------------------------------------------------------------*/
-/* This should come out before going to kernel.org */
-static void sierra_net_printk_buf(u8 *buf, u16 len)
-{
-#ifdef VERBOSE
-	u16 i;
-	u16 k;
-
-	for (i = k = 0; i < len / 4; i++, k += 4) {
-		printk(KERN_DEBUG "%02x%02x%02x%02x ",
-			buf[k+0], buf[k+1], buf[k+2], buf[k+3]);
-	}
-
-	for (; k < len;  k++)
-		printk(KERN_DEBUG "%02x", buf[k]);
-
-	printk("\n");
-#endif
-}
-
-static int sierra_net_send_cmd(struct usbnet *dev,
-		u8 *cmd, int cmdlen, const char * cmd_name)
-{
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-	int  status;
-
-	usb_autopm_get_interface(dev->intf);
-	status = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
-			USB_CDC_SEND_ENCAPSULATED_COMMAND,
-			USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE,	0,
-			priv->ifnum, cmd, cmdlen, USB_CTRL_SET_TIMEOUT);
-	usb_autopm_put_interface(dev->intf);
-
-	if (status != cmdlen && status != -ENODEV)
-		netdev_err(dev->net, "Submit %s failed %d\n", cmd_name, status);
-
-	return status;
-}
-
-static int sierra_net_send_sync(struct usbnet *dev)
-{
-	int  status;
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-
-	status = sierra_net_send_cmd(dev, priv->sync_msg,
-			sizeof(priv->sync_msg), "SYNC");
-    return status;
-}
-
-static void sierra_net_send_shutdown(struct usbnet *dev)
-{
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-
-	sierra_net_send_cmd(dev, priv->shdwn_msg,
-			sizeof(priv->shdwn_msg), "Shutdown");
-}
-
-static void sierra_net_set_ctx_index(struct sierra_net_data *priv, u8 ctx_ix)
-{
-	dev_dbg(&(priv->usbnet->udev->dev), "%s %d", __func__, ctx_ix);
-	priv->tx_hdr_template[0] = 0x3F;
-	priv->tx_hdr_template[1] = ctx_ix;
-	*((u16 *)&priv->tx_hdr_template[2]) =
-		cpu_to_be16(SIERRA_NET_HIP_EXT_IP_OUT_ID);
-}
-
-static inline int sierra_net_is_valid_addrlen(u8 len)
-{
-	return (len == sizeof(struct in_addr));
-}
-
-static int sierra_net_parse_lsi(struct usbnet *dev, char *data, int datalen)
-{
-	struct lsi_umts *lsi = (struct lsi_umts *)data;
-
-	if (datalen < sizeof(struct lsi_umts)) {
-		netdev_err(dev->net, "%s: Data length %d, exp %Zu\n",
-				__func__, datalen,
-				sizeof(struct lsi_umts));
-		return -1;
-	}
-
-	if (lsi->length != cpu_to_be16(SIERRA_NET_LSI_UMTS_STATUS_LEN)) {
-		netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
-				__func__, be16_to_cpu(lsi->length),
-				(u32)SIERRA_NET_LSI_UMTS_STATUS_LEN);
-		return -1;
-	}
-
-	/* Validate the protocol  - only support UMTS for now */
-	if (lsi->protocol != SIERRA_NET_PROTOCOL_UMTS) {
-		netdev_err(dev->net, "Protocol unsupported, 0x%02x\n",
-			lsi->protocol);
-		return -1;
-	}
-
-	/* Validate the link type */
-	if ((lsi->link_type != SIERRA_NET_AS_LINK_TYPE_IPv4) &&
-		(lsi->link_type != SIERRA_NET_AS_LINK_TYPE_IPv6)) {
-		netdev_err(dev->net, "Link unavailable: 0x%02x",
-			lsi->link_type);
-		return 0;
-	}
-
-	/* Validate the coverage */
-	if (lsi->coverage == SIERRA_NET_COVERAGE_NONE
-	   || lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
-		netdev_err(dev->net, "No coverage, 0x%02x\n", lsi->coverage);
-		return 0;
-	}
-
-	/* Validate the session state */
-	if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
-		netdev_err(dev->net, "Session idle, 0x%02x\n",
-			lsi->session_state);
-		return 0;
-	}
-
-	/* Set link_sense true */
-	return 1;
-}
-
-static void sierra_net_handle_lsi(struct usbnet *dev, char *data,
-		struct hip_hdr	*hh)
-{
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-	int link_up;
-
-	link_up = sierra_net_parse_lsi(dev, data + hh->hdrlen,
-					hh->payload_len.word);
-	if (link_up < 0) {
-		netdev_err(dev->net, "Invalid LSI\n");
-		return;
-	}
-	if (link_up) {
-		sierra_net_set_ctx_index(priv, hh->msgspecific.byte);
-		priv->link_up = 1;
-		netif_carrier_on(dev->net);
-	} else {
-		priv->link_up = 0;
-		netif_carrier_off(dev->net);
-	}
-}
-
-static void sierra_net_dosync(struct usbnet *dev)
-{
-	int status;
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-
-	/* tell modem we are ready */
-	status = sierra_net_send_sync(dev);
-	if (status < 0)
-		netdev_err(dev->net,
-			"Send SYNC failed, status %d\n", status);
-	status = sierra_net_send_sync(dev);
-	if (status < 0)
-		netdev_err(dev->net,
-			"Send SYNC failed, status %d\n", status);
-
-	/* Now, start a timer and make sure we get the Restart Indication */
-	priv->sync_timer.function = sierra_sync_timer;
-	priv->sync_timer.data = (unsigned long) dev;
-	priv->sync_timer.expires = jiffies + SIERRA_NET_SYNCDELAY;
-	add_timer(&priv->sync_timer);
-}
-
-static void sierra_net_kevent(struct work_struct *work)
-{
-	struct sierra_net_data *priv =
-		container_of(work, struct sierra_net_data, sierra_net_kevent);
-	struct usbnet *dev = priv->usbnet;
-	int  len;
-	int  err;
-	u8  *buf;
-	u8   ifnum;
-
-	if (test_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags)) {
-		clear_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags);
-
-		/* Query the modem for the LSI message */
-		buf = kzalloc(SIERRA_NET_USBCTL_BUF_LEN, GFP_KERNEL);
-		if (!buf) {
-			netdev_err(dev->net,
-				"failed to allocate buf for LS msg\n");
-			return;
-		}
-		ifnum = priv->ifnum;
-		usb_autopm_get_interface(dev->intf);
-		len = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
-				USB_CDC_GET_ENCAPSULATED_RESPONSE,
-				USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE,
-				0, ifnum, buf, SIERRA_NET_USBCTL_BUF_LEN,
-				USB_CTRL_SET_TIMEOUT);
-		usb_autopm_put_interface(dev->intf);
-
-		if (unlikely(len < 0)) {
-			netdev_err(dev->net,
-				"usb_control_msg failed, status %d\n", len);
-		} else {
-			struct hip_hdr	hh;
-
-			dev_dbg(&dev->udev->dev, "%s: Received status message,"
-				" %04x bytes", __func__, len);
-			sierra_net_printk_buf(buf, len);
-
-			err = parse_hip(buf, len, &hh);
-			if (err) {
-				netdev_err(dev->net, "%s: Bad packet,"
-					" parse result %d\n", __func__, err);
-				kfree(buf);
-				return;
-			}
-
-			/* Validate packet length */
-			if (len != hh.hdrlen + hh.payload_len.word) {
-				netdev_err(dev->net, "%s: Bad packet, received"
-					" %d, expected %d\n",	__func__, len,
-					hh.hdrlen + hh.payload_len.word);
-				kfree(buf);
-				return;
-			}
-
-			/* Switch on received message types */
-			switch (hh.msgid.byte) {
-			case SIERRA_NET_HIP_LSI_UMTSID:
-				dev_dbg(&dev->udev->dev, "LSI for ctx:%d",
-					hh.msgspecific.byte);
-				sierra_net_handle_lsi(dev, buf, &hh);
-				break;
-			case SIERRA_NET_HIP_RESTART_ID:
-				dev_dbg(&dev->udev->dev, "Restart reported: %d,"
-						" stopping sync timer",
-						hh.msgspecific.byte);
-				/* Got sync resp - stop timer & clear mask */
-				del_timer_sync(&priv->sync_timer);
-				clear_bit(SIERRA_NET_TIMER_EXPIRY,
-					  &priv->kevent_flags);
-				break;
-			case SIERRA_NET_HIP_HSYNC_ID:
-				dev_dbg(&dev->udev->dev, "SYNC received");
-				err = sierra_net_send_sync(dev);
-				if (err < 0)
-					netdev_err(dev->net,
-						"Send SYNC failed %d\n", err);
-				break;
-			case SIERRA_NET_HIP_EXTENDEDID:
-				netdev_err(dev->net, "Unrecognized HIP msg, "
-					"extmsgid 0x%04x\n", hh.extmsgid.word);
-				break;
-			case SIERRA_NET_HIP_RCGI:
-				/* Ignored. It is a firmware
-				 * workaround to solve a  Windows driver bug and
-				 * may be removed in the future. 
-				 */
-				break;
-			default:
-				netdev_err(dev->net, "Unrecognized HIP msg, "
-					"msgid 0x%02x\n", hh.msgid.byte);
-				break;
-			}
-		}
-		kfree(buf);
-	}
-	/* The sync timer bit might be set */
-	if (test_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags)) {
-		clear_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags);
-		dev_dbg(&dev->udev->dev, "Deferred sync timer expiry");
-		sierra_net_dosync(priv->usbnet);
-	}
-
-	if (priv->kevent_flags)
-		dev_dbg(&dev->udev->dev, "sierra_net_kevent done, "
-			"kevent_flags = 0x%lx", priv->kevent_flags);
-}
-
-static void sierra_net_defer_kevent(struct usbnet *dev, int work)
-{
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-
-	set_bit(work, &priv->kevent_flags);
-	if (!schedule_work(&priv->sierra_net_kevent))
-		dev_dbg(&dev->udev->dev, "sierra_net_kevent %d may have been dropped", work);
-	else
-		dev_dbg(&dev->udev->dev, "sierra_net_kevent %d scheduled", work);
-}
-
-/*
- * Sync Retransmit Timer Handler. On expiry, kick the work queue
- */
-void sierra_sync_timer(unsigned long syncdata)
-{
-	struct usbnet *dev = (struct usbnet *)syncdata;
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-	/* Kick the tasklet */
-	sierra_net_defer_kevent(dev, SIERRA_NET_TIMER_EXPIRY);
-}
-
-static void sierra_net_status(struct usbnet *dev, struct urb *urb)
-{
-	struct usb_cdc_notification *event;
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-	sierra_net_printk_buf(urb->transfer_buffer, urb->actual_length);
-
-	if (urb->actual_length < sizeof *event)
-		return;
-
-	/* Add cases to handle other standard notifications. */
-	event = urb->transfer_buffer;
-	switch (event->bNotificationType) {
-	case USB_CDC_NOTIFY_NETWORK_CONNECTION:
-	case USB_CDC_NOTIFY_SPEED_CHANGE:
-		/* USB 305 sends those */
-		break;
-	case USB_CDC_NOTIFY_RESPONSE_AVAILABLE:
-		sierra_net_defer_kevent(dev, SIERRA_NET_EVENT_RESP_AVAIL);
-		break;
-	default:
-		netdev_err(dev->net, ": unexpected notification %02x!\n",
-				event->bNotificationType);
-		break;
-	}
-}
-
-static void sierra_net_get_drvinfo(struct net_device *net,
-		struct ethtool_drvinfo *info)
-{
-	/* Inherit standard device info */
-	usbnet_get_drvinfo(net, info);
-	strncpy(info->driver, driver_name, sizeof info->driver);
-	strncpy(info->version, DRIVER_VERSION, sizeof info->version);
-}
-
-static u32 sierra_net_get_link(struct net_device *net)
-{
-	struct usbnet *dev = netdev_priv(net);
-	/* Report link is down whenever the interface is down */
-	return sierra_net_get_private(dev)->link_up && netif_running(net);
-}
-
-static struct ethtool_ops sierra_net_ethtool_ops = {
-	.get_drvinfo = sierra_net_get_drvinfo,
-	.get_link = sierra_net_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,
-};
-
-/* MTU can not be more than 1500 bytes, enforce it. */
-static int sierra_net_change_mtu(struct net_device *net, int new_mtu)
-{
-	if (new_mtu > SIERRA_NET_MAX_SUPPORTED_MTU)
-		return -EINVAL;
-
-	return usbnet_change_mtu(net, new_mtu);
-}
-
-static int is_whitelisted(const u8 ifnum,
-			const struct sierra_net_iface_info *whitelist)
-{
-	if (whitelist) {
-		const u8 *list = whitelist->ifaceinfo;
-		int i;
-
-		for (i = 0; i < whitelist->infolen; i++) {
-			if (list[i] == ifnum)
-				return 1;
-		}
-	}
-	return 0;
-}
-
-static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap)
-{
-	int result = 0;
-	u16 *attrdata;
-
-	attrdata = kmalloc(sizeof(*attrdata), GFP_KERNEL);
-	if (!attrdata)
-		return -ENOMEM;
-
-	usb_autopm_get_interface(dev->intf);
-	result = usb_control_msg(
-			dev->udev,
-			usb_rcvctrlpipe(dev->udev, 0),
-			/* _u8 vendor specific request */
-			SWI_USB_REQUEST_GET_FW_ATTR,
-			USB_DIR_IN | USB_TYPE_VENDOR,	/* __u8 request type */
-			0x0000,		/* __u16 value not used */
-			0x0000,		/* __u16 index  not used */
-			attrdata,	/* char *data */
-			sizeof(*attrdata),		/* __u16 size */
-			USB_CTRL_SET_TIMEOUT);	/* int timeout */
-	usb_autopm_put_interface(dev->intf);
-
-	if (result < 0) {
-		kfree(attrdata);
-		return -EIO;
-	}
-
-	*datap = *attrdata;
-
-	kfree(attrdata);
-	return result;
-}
-
-static int sierra_net_manage_power(struct usbnet *dev, int on)
-{
-	dev->intf->needs_remote_wakeup = on;
-	return 0;
-}
-
-/*
- * collects the bulk endpoints, the status endpoint.
- */
-static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
-{
-	u8	ifacenum;
-	u8	numendpoints;
-	u16	fwattr = 0;
-	int	status;
-	struct ethhdr *eth;
-	struct sierra_net_data *priv;
-	static const u8 sync_tmplate[sizeof(priv->sync_msg)] = {
-		0x00, 0x00, SIERRA_NET_HIP_MSYNC_ID, 0x00};
-	static const u8 shdwn_tmplate[sizeof(priv->shdwn_msg)] = {
-		0x00, 0x00, SIERRA_NET_HIP_SHUTD_ID, 0x00};
-
-	struct sierra_net_info_data *data =
-			(struct sierra_net_info_data *)dev->driver_info->data;
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-
-	ifacenum = intf->cur_altsetting->desc.bInterfaceNumber;
-	/* We only accept certain interfaces */
-	if (!is_whitelisted(ifacenum, &data->whitelist)) {
-		dev_dbg(&dev->udev->dev, "Ignoring interface: %d", ifacenum);
-		return -ENODEV;
-	}
-	numendpoints = intf->cur_altsetting->desc.bNumEndpoints;
-	/* We have three endpoints, bulk in and out, and a status */
-	if (numendpoints != 3) {
-		dev_err(&dev->udev->dev, "Expected 3 endpoints, found: %d",
-			numendpoints);
-		return -ENODEV;
-	}
-	/* Status endpoint set in usbnet_get_endpoints() */
-	dev->status = NULL;
-	status = usbnet_get_endpoints(dev, intf);
-	if (status < 0) {
-		dev_err(&dev->udev->dev, "Error in usbnet_get_endpoints (%d)",
-			status);
-		return -ENODEV;
-	}
-	/* Initialize sierra private data */
-	priv = kzalloc(sizeof *priv, GFP_KERNEL);
-	if (!priv) {
-		dev_err(&dev->udev->dev, "No memory");
-		return -ENOMEM;
-	}
-
-	priv->usbnet = dev;
-	priv->ifnum = ifacenum;
-	/* override change_mtu with our own routine - need to bound check */
-	/* replace structure to our own structure where we have our own
-	 *  routine - need to bound check
-	 */
-	dev->net->netdev_ops = &sierra_net_device_ops;
-
-	/* change MAC addr to include, ifacenum, and to be unique */
-	dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
-	dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
-
-	/* we will have to manufacture ethernet headers, prepare template */
-	eth = (struct ethhdr *)priv->ethr_hdr_tmpl;
-	memcpy(&eth->h_dest, dev->net->dev_addr, ETH_ALEN);
-	eth->h_proto = cpu_to_be16(ETH_P_IP);
-
-	/* prepare shutdown message template */
-	memcpy(priv->shdwn_msg, shdwn_tmplate, sizeof(priv->shdwn_msg));
-	/* set context index initially to 0 - prepares tx hdr template */
-	sierra_net_set_ctx_index(priv, 0);
-
-	/* decrease the rx_urb_size and max_tx_size to 4k on USB 1.1 */
-	dev->rx_urb_size  = data->rx_urb_size;
-	if (dev->udev->speed != USB_SPEED_HIGH)
-		dev->rx_urb_size  = min_t(size_t, 4096, data->rx_urb_size);
-
-	dev->net->hard_header_len += SIERRA_NET_HIP_EXT_HDR_LEN;
-	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
-
-	/* Set up the netdev */
-	dev->net->flags |= IFF_NOARP;
-	dev->net->flags |= IFF_MULTICAST;
-	dev->net->ethtool_ops = &sierra_net_ethtool_ops;
-	netif_carrier_off(dev->net);
-
-	sierra_net_set_private(dev, priv);
-
-	priv->kevent_flags = 0;
-
-	/* Use the shared workqueue */
-	INIT_WORK(&priv->sierra_net_kevent, sierra_net_kevent);
-
-	/* Only need to do this once */
-	init_timer(&priv->sync_timer);
-	/* verify fw attributes */
-	status = sierra_net_get_fw_attr(dev, &fwattr);
-	dev_dbg(&dev->udev->dev, "Fw attr: %x\n", fwattr); 
-	if (status == sizeof(fwattr) && (fwattr & SWI_GET_FW_ATTR_APM)) {
-/******************************************************************************* 
- * If you want the default /sys/bus/usb/devices/.../.../power/level to be forced
- * to auto, the following needs to be compiled in.
- */ 
-#ifdef POWER_LEVEL_AUTO
-		/* make power level default be 'auto' */
-		dev_dbg(&dev->udev->dev, "Enabling APM");
-		usb_enable_autosuspend(dev->udev);
-#endif
-	} else {
-		dev_info(&intf->dev, "Disabling APM - not supported");
-		usb_disable_autosuspend(dev->udev);
-	}
-	/* test whether firmware supports DHCP */
-	if (!(status == sizeof(fwattr) && (fwattr & SWI_GET_FW_ATTR_MASK))) {
-		/* found incompatible firmware version */
-		dev_err(&dev->udev->dev, "Incompatible driver and firmware"
-			" versions\n");
-		kfree(priv);
-		return -ENODEV;
-	}
-	/* prepare sync message from template */
-	memcpy(priv->sync_msg, sync_tmplate, sizeof(priv->sync_msg));
-
-	return 0;
-}
-
-static void sierra_net_unbind(struct usbnet *dev, struct usb_interface *intf)
-{
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-
-	sierra_net_set_private(dev, NULL);
-
-	kfree(priv);
-}
-
-static int sierra_net_open(struct usbnet *dev)
-{
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-
-	/* initiate the sync sequence */
-	sierra_net_dosync(dev);
-
-	return 0;
-}
-
-static int sierra_net_stop(struct usbnet *dev)
-{
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-
-	/* Kill the timer then flush the work queue */
-	del_timer_sync(&priv->sync_timer);
-
-	cancel_work_sync(&priv->sierra_net_kevent);
-
-	/* tell modem we are going away */
-	sierra_net_send_shutdown(dev);
-
-	return 0;
-}
-
-static struct sk_buff *sierra_net_skb_clone(struct usbnet *dev,
-		struct sk_buff *skb, int len)
-{
-	struct sk_buff *new_skb;
-
-	/* clone skb */
-	new_skb = skb_clone(skb, GFP_ATOMIC);
-
-	/* remove len bytes from original */
-	skb_pull(skb, len);
-
-	/* trim next packet to it's length */
-	if (new_skb) {
-		skb_trim(new_skb, len);
-	} else {
-		if (netif_msg_rx_err(dev))
-			netdev_err(dev->net, "failed to get skb\n");
-		dev->net->stats.rx_dropped++;
-	}
-
-	return new_skb;
-}
-
-/* ---------------------------- Receive data path ----------------------*/
-static int sierra_net_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
-{
-	int err;
-	struct hip_hdr  hh;
-	struct sk_buff *new_skb;
-	struct ethhdr *eth;
-	struct iphdr *ip;
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-
-	sierra_net_printk_buf(skb->data, skb->len);
-
-	/* could contain multiple packets */
-	while (likely(skb->len)) {
-		err = parse_hip(skb->data, skb->len, &hh);
-		if (err) {
-			if (netif_msg_rx_err(dev))
-				netdev_err(dev->net, "Invalid HIP header %d\n",
-					err);
-			/* dev->net->stats.rx_errors incremented by caller */
-			dev->net->stats.rx_length_errors++;
-			return 0;
-		}
-
-		/* Validate Extended HIP header */
-		if (!hh.extmsgid.is_present
-		    || hh.extmsgid.word != SIERRA_NET_HIP_EXT_IP_IN_ID) {
-			if (netif_msg_rx_err(dev))
-				netdev_err(dev->net, "HIP/ETH: Invalid pkt\n");
-
-			dev->net->stats.rx_frame_errors++;
-			/* dev->net->stats.rx_errors incremented by caller */;
-			return 0;
-		}
-
-		skb_pull(skb, hh.hdrlen);
-
-		/* We are going to accept this packet, prepare it */
-		memcpy(skb->data, sierra_net_get_private(dev)->ethr_hdr_tmpl,
-			ETH_HLEN);
-
-		ip = (struct iphdr *)((char *)skb->data + ETH_HLEN);
-		if(ip->version == 6) {
-			eth = (struct ethhdr *)skb->data;
-			eth->h_proto = cpu_to_be16(ETH_P_IPV6);
-		}
-
-		/* Last packet in batch handled by usbnet */
-		if (hh.payload_len.word == skb->len)
-			return 1;
-
-		new_skb = sierra_net_skb_clone(dev, skb, hh.payload_len.word);
-		if (new_skb)
-			usbnet_skb_return(dev, new_skb);
-
-	} /* while */
-
-	return 0;
-}
-
-/* ---------------------------- Transmit data path ----------------------*/
-struct sk_buff *sierra_net_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
-		gfp_t flags)
-{
-	struct sierra_net_data *priv = sierra_net_get_private(dev);
-	u16 len;
-	bool need_tail;
-
-	dev_dbg(&dev->udev->dev, "%s", __func__);
-	if (priv->link_up && check_ethip_packet(skb, dev) && is_ip(skb)) {
-		/* enough head room as is? */
-		if (SIERRA_NET_HIP_EXT_HDR_LEN <= skb_headroom(skb)) {
-			/* Save the Eth/IP length and set up HIP hdr */
-			len = skb->len;
-			skb_push(skb, SIERRA_NET_HIP_EXT_HDR_LEN);
-			/* Handle ZLP issue */
-			need_tail = ((len + SIERRA_NET_HIP_EXT_HDR_LEN)
-				% dev->maxpacket == 0);
-			if (need_tail) {
-				if (unlikely(skb_tailroom(skb) == 0)) {
-					netdev_err(dev->net, "tx_fixup:"
-						"no room for packet\n");
-					dev_kfree_skb_any(skb);
-					return NULL;
-				} else {
-					skb->data[skb->len] = 0;
-					__skb_put(skb, 1);
-					len = len + 1;
-				}
-			}
-			build_hip(skb->data, len, priv);
-
-            sierra_net_printk_buf(skb->data, skb->len);
-			return skb;
-		} else {
-			/*
-			 * compensate in the future if necessary
-			 */
-			netdev_err(dev->net, "tx_fixup: no room for HIP\n");
-		} /* headroom */
-	}
-
-	if (!priv->link_up)
-		dev->net->stats.tx_carrier_errors++;
-
-	/* tx_dropped incremented by usbnet */
-
-	/* filter the packet out, release it  */
-	dev_kfree_skb_any(skb);
-	return NULL;
-}
-
-static int sierra_net_reset_resume(struct usb_interface *intf)
-{
-	struct usbnet	*dev = usb_get_intfdata(intf);
-	netdev_err(dev->net, "%s\n", __func__);
-	return usbnet_resume(intf);
-}
-
-static const u8 sierra_net_ifnum_list[] = { 7, 10, 11 };
-static const struct sierra_net_info_data sierra_net_info_data_direct_ip = {
-	/* .rx_urb_size = 8 * 1024, */
-	.rx_urb_size = SIERRA_NET_RX_URB_SZ,
-	.whitelist = {
-		.infolen = ARRAY_SIZE(sierra_net_ifnum_list),
-		.ifaceinfo = sierra_net_ifnum_list
-	}
-};
-
-static const struct driver_info sierra_net_info_direct_ip = {
-	.description = "Sierra Wireless USB-to-WWAN Modem",
-	.flags = FLAG_WWAN | FLAG_SEND_ZLP,
-	.bind = sierra_net_bind,
-	.unbind = sierra_net_unbind,
-	.status = sierra_net_status,
-	.rx_fixup = sierra_net_rx_fixup,
-	.tx_fixup = sierra_net_tx_fixup,
-	.manage_power = sierra_net_manage_power,
-	.stop = sierra_net_stop,
-	.check_connect = sierra_net_open,
-	.data = (unsigned long)&sierra_net_info_data_direct_ip,
-};
-
-static const struct usb_device_id products[] = {
-	{USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modem */
-	.driver_info = (unsigned long) &sierra_net_info_direct_ip},
-	{USB_DEVICE(0xF3D, 0x68A3), /* AT&T Direct IP modem */
-	.driver_info = (unsigned long) &sierra_net_info_direct_ip},
-	{USB_DEVICE(0x1199, 0x68AA), /* Sierra Wireless Direct IP LTE modem */
-	.driver_info = (unsigned long) &sierra_net_info_direct_ip},
-	{USB_DEVICE(0xF3D, 0x68AA), /* AT&T Direct IP LTE modem */
-	.driver_info = (unsigned long) &sierra_net_info_direct_ip},
-
-	{}, /* last item */
-};
-MODULE_DEVICE_TABLE(usb, products);
-
-/* We are based on usbnet, so let it handle the USB driver specifics */
-static struct usb_driver sierra_net_driver = {
-	.name = "sierra_net",
-	.id_table = products,
-	.probe = usbnet_probe,
-	.disconnect = usbnet_disconnect,
-	.suspend = usbnet_suspend,
-	.resume = usbnet_resume,
-	.reset_resume = sierra_net_reset_resume,
-	.no_dynamic_id = 1,
-	.supports_autosuspend = 1,
-};
-
-static int __init sierra_net_init(void)
-{
-	BUILD_BUG_ON(FIELD_SIZEOF(struct usbnet, data)
-				< sizeof(struct cdc_state));
-
-	return usb_register(&sierra_net_driver);
-}
-
-static void __exit sierra_net_exit(void)
-{
-	usb_deregister(&sierra_net_driver);
-}
-
-module_exit(sierra_net_exit);
-module_init(sierra_net_init);
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_VERSION(DRIVER_VERSION);
-MODULE_LICENSE("GPL");