Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 488 insertions, 0 deletions

diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
new file mode 100644
index 000000000..b1e844bf3
--- /dev/null
+++ b/drivers/usb/serial/qcserial.c
@@ -0,0 +1,488 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Qualcomm Serial USB driver
+ *
+ *	Copyright (c) 2008 QUALCOMM Incorporated.
+ *	Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
+ *	Copyright (c) 2009 Novell Inc.
+ */
+
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include <linux/slab.h>
+#include "usb-wwan.h"
+
+#define DRIVER_AUTHOR "Qualcomm Inc"
+#define DRIVER_DESC "Qualcomm USB Serial driver"
+
+#define QUECTEL_EC20_PID	0x9215
+
+/* standard device layouts supported by this driver */
+enum qcserial_layouts {
+	QCSERIAL_G2K = 0,	/* Gobi 2000 */
+	QCSERIAL_G1K = 1,	/* Gobi 1000 */
+	QCSERIAL_SWI = 2,	/* Sierra Wireless */
+	QCSERIAL_HWI = 3,	/* Huawei */
+};
+
+#define DEVICE_G1K(v, p) \
+	USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K
+#define DEVICE_SWI(v, p) \
+	USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI
+#define DEVICE_HWI(v, p) \
+	USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI
+
+static const struct usb_device_id id_table[] = {
+	/* Gobi 1000 devices */
+	{DEVICE_G1K(0x05c6, 0x9211)},	/* Acer Gobi QDL device */
+	{DEVICE_G1K(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
+	{DEVICE_G1K(0x03f0, 0x1f1d)},	/* HP un2400 Gobi Modem Device */
+	{DEVICE_G1K(0x03f0, 0x201d)},	/* HP un2400 Gobi QDL Device */
+	{DEVICE_G1K(0x04da, 0x250d)},	/* Panasonic Gobi Modem device */
+	{DEVICE_G1K(0x04da, 0x250c)},	/* Panasonic Gobi QDL device */
+	{DEVICE_G1K(0x413c, 0x8172)},	/* Dell Gobi Modem device */
+	{DEVICE_G1K(0x413c, 0x8171)},	/* Dell Gobi QDL device */
+	{DEVICE_G1K(0x1410, 0xa001)},	/* Novatel/Verizon USB-1000 */
+	{DEVICE_G1K(0x1410, 0xa002)},	/* Novatel Gobi Modem device */
+	{DEVICE_G1K(0x1410, 0xa003)},	/* Novatel Gobi Modem device */
+	{DEVICE_G1K(0x1410, 0xa004)},	/* Novatel Gobi Modem device */
+	{DEVICE_G1K(0x1410, 0xa005)},	/* Novatel Gobi Modem device */
+	{DEVICE_G1K(0x1410, 0xa006)},	/* Novatel Gobi Modem device */
+	{DEVICE_G1K(0x1410, 0xa007)},	/* Novatel Gobi Modem device */
+	{DEVICE_G1K(0x1410, 0xa008)},	/* Novatel Gobi QDL device */
+	{DEVICE_G1K(0x0b05, 0x1776)},	/* Asus Gobi Modem device */
+	{DEVICE_G1K(0x0b05, 0x1774)},	/* Asus Gobi QDL device */
+	{DEVICE_G1K(0x19d2, 0xfff3)},	/* ONDA Gobi Modem device */
+	{DEVICE_G1K(0x19d2, 0xfff2)},	/* ONDA Gobi QDL device */
+	{DEVICE_G1K(0x1557, 0x0a80)},	/* OQO Gobi QDL device */
+	{DEVICE_G1K(0x05c6, 0x9001)},   /* Generic Gobi Modem device */
+	{DEVICE_G1K(0x05c6, 0x9002)},	/* Generic Gobi Modem device */
+	{DEVICE_G1K(0x05c6, 0x9202)},	/* Generic Gobi Modem device */
+	{DEVICE_G1K(0x05c6, 0x9203)},	/* Generic Gobi Modem device */
+	{DEVICE_G1K(0x05c6, 0x9222)},	/* Generic Gobi Modem device */
+	{DEVICE_G1K(0x05c6, 0x9008)},	/* Generic Gobi QDL device */
+	{DEVICE_G1K(0x05c6, 0x9009)},	/* Generic Gobi Modem device */
+	{DEVICE_G1K(0x05c6, 0x9201)},	/* Generic Gobi QDL device */
+	{DEVICE_G1K(0x05c6, 0x9221)},	/* Generic Gobi QDL device */
+	{DEVICE_G1K(0x05c6, 0x9231)},	/* Generic Gobi QDL device */
+	{DEVICE_G1K(0x1f45, 0x0001)},	/* Unknown Gobi QDL device */
+	{DEVICE_G1K(0x1bc7, 0x900e)},	/* Telit Gobi QDL device */
+
+	/* Gobi 2000 devices */
+	{USB_DEVICE(0x1410, 0xa010)},	/* Novatel Gobi 2000 QDL device */
+	{USB_DEVICE(0x1410, 0xa011)},	/* Novatel Gobi 2000 QDL device */
+	{USB_DEVICE(0x1410, 0xa012)},	/* Novatel Gobi 2000 QDL device */
+	{USB_DEVICE(0x1410, 0xa013)},	/* Novatel Gobi 2000 QDL device */
+	{USB_DEVICE(0x1410, 0xa014)},	/* Novatel Gobi 2000 QDL device */
+	{USB_DEVICE(0x413c, 0x8185)},	/* Dell Gobi 2000 QDL device (N0218, VU936) */
+	{USB_DEVICE(0x413c, 0x8186)},	/* Dell Gobi 2000 Modem device (N0218, VU936) */
+	{USB_DEVICE(0x05c6, 0x9208)},	/* Generic Gobi 2000 QDL device */
+	{USB_DEVICE(0x05c6, 0x920b)},	/* Generic Gobi 2000 Modem device */
+	{USB_DEVICE(0x05c6, 0x9224)},	/* Sony Gobi 2000 QDL device (N0279, VU730) */
+	{USB_DEVICE(0x05c6, 0x9225)},	/* Sony Gobi 2000 Modem device (N0279, VU730) */
+	{USB_DEVICE(0x05c6, 0x9244)},	/* Samsung Gobi 2000 QDL device (VL176) */
+	{USB_DEVICE(0x05c6, 0x9245)},	/* Samsung Gobi 2000 Modem device (VL176) */
+	{USB_DEVICE(0x03f0, 0x241d)},	/* HP Gobi 2000 QDL device (VP412) */
+	{USB_DEVICE(0x03f0, 0x251d)},	/* HP Gobi 2000 Modem device (VP412) */
+	{USB_DEVICE(0x05c6, 0x9214)},	/* Acer Gobi 2000 QDL device (VP413) */
+	{USB_DEVICE(0x05c6, 0x9215)},	/* Acer Gobi 2000 Modem device (VP413) */
+	{USB_DEVICE(0x05c6, 0x9264)},	/* Asus Gobi 2000 QDL device (VR305) */
+	{USB_DEVICE(0x05c6, 0x9265)},	/* Asus Gobi 2000 Modem device (VR305) */
+	{USB_DEVICE(0x05c6, 0x9234)},	/* Top Global Gobi 2000 QDL device (VR306) */
+	{USB_DEVICE(0x05c6, 0x9235)},	/* Top Global Gobi 2000 Modem device (VR306) */
+	{USB_DEVICE(0x05c6, 0x9274)},	/* iRex Technologies Gobi 2000 QDL device (VR307) */
+	{USB_DEVICE(0x05c6, 0x9275)},	/* iRex Technologies Gobi 2000 Modem device (VR307) */
+	{USB_DEVICE(0x1199, 0x9000)},	/* Sierra Wireless Gobi 2000 QDL device (VT773) */
+	{USB_DEVICE(0x1199, 0x9001)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9002)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9003)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9004)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9005)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9006)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9007)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9008)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9009)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x900a)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
+	{USB_DEVICE(0x1199, 0x9011)},   /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
+	{USB_DEVICE(0x16d8, 0x8001)},	/* CMDTech Gobi 2000 QDL device (VU922) */
+	{USB_DEVICE(0x16d8, 0x8002)},	/* CMDTech Gobi 2000 Modem device (VU922) */
+	{USB_DEVICE(0x05c6, 0x9204)},	/* Gobi 2000 QDL device */
+	{USB_DEVICE(0x05c6, 0x9205)},	/* Gobi 2000 Modem device */
+
+	/* Gobi 3000 devices */
+	{USB_DEVICE(0x03f0, 0x371d)},	/* HP un2430 Gobi 3000 QDL */
+	{USB_DEVICE(0x05c6, 0x920c)},	/* Gobi 3000 QDL */
+	{USB_DEVICE(0x05c6, 0x920d)},	/* Gobi 3000 Composite */
+	{USB_DEVICE(0x1410, 0xa020)},   /* Novatel Gobi 3000 QDL */
+	{USB_DEVICE(0x1410, 0xa021)},	/* Novatel Gobi 3000 Composite */
+	{USB_DEVICE(0x413c, 0x8193)},	/* Dell Gobi 3000 QDL */
+	{USB_DEVICE(0x413c, 0x8194)},	/* Dell Gobi 3000 Composite */
+	{USB_DEVICE(0x413c, 0x81a6)},	/* Dell DW5570 QDL (MC8805) */
+	{USB_DEVICE(0x1199, 0x68a4)},	/* Sierra Wireless QDL */
+	{USB_DEVICE(0x1199, 0x68a5)},	/* Sierra Wireless Modem */
+	{USB_DEVICE(0x1199, 0x68a8)},	/* Sierra Wireless QDL */
+	{USB_DEVICE(0x1199, 0x68a9)},	/* Sierra Wireless Modem */
+	{USB_DEVICE(0x1199, 0x9010)},	/* Sierra Wireless Gobi 3000 QDL */
+	{USB_DEVICE(0x1199, 0x9012)},	/* Sierra Wireless Gobi 3000 QDL */
+	{USB_DEVICE(0x1199, 0x9013)},	/* Sierra Wireless Gobi 3000 Modem device (MC8355) */
+	{USB_DEVICE(0x1199, 0x9014)},	/* Sierra Wireless Gobi 3000 QDL */
+	{USB_DEVICE(0x1199, 0x9015)},	/* Sierra Wireless Gobi 3000 Modem device */
+	{USB_DEVICE(0x1199, 0x9018)},	/* Sierra Wireless Gobi 3000 QDL */
+	{USB_DEVICE(0x1199, 0x9019)},	/* Sierra Wireless Gobi 3000 Modem device */
+	{USB_DEVICE(0x1199, 0x901b)},	/* Sierra Wireless MC7770 */
+	{USB_DEVICE(0x12D1, 0x14F0)},	/* Sony Gobi 3000 QDL */
+	{USB_DEVICE(0x12D1, 0x14F1)},	/* Sony Gobi 3000 Composite */
+	{USB_DEVICE(0x0AF0, 0x8120)},	/* Option GTM681W */
+
+	/* non-Gobi Sierra Wireless devices */
+	{DEVICE_SWI(0x03f0, 0x4e1d)},	/* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
+	{DEVICE_SWI(0x0f3d, 0x68a2)},	/* Sierra Wireless MC7700 */
+	{DEVICE_SWI(0x114f, 0x68a2)},	/* Sierra Wireless MC7750 */
+	{DEVICE_SWI(0x1199, 0x68a2)},	/* Sierra Wireless MC7710 */
+	{DEVICE_SWI(0x1199, 0x68c0)},	/* Sierra Wireless MC7304/MC7354 */
+	{DEVICE_SWI(0x1199, 0x901c)},	/* Sierra Wireless EM7700 */
+	{DEVICE_SWI(0x1199, 0x901e)},	/* Sierra Wireless EM7355 QDL */
+	{DEVICE_SWI(0x1199, 0x901f)},	/* Sierra Wireless EM7355 */
+	{DEVICE_SWI(0x1199, 0x9040)},	/* Sierra Wireless Modem */
+	{DEVICE_SWI(0x1199, 0x9041)},	/* Sierra Wireless MC7305/MC7355 */
+	{DEVICE_SWI(0x1199, 0x9051)},	/* Netgear AirCard 340U */
+	{DEVICE_SWI(0x1199, 0x9053)},	/* Sierra Wireless Modem */
+	{DEVICE_SWI(0x1199, 0x9054)},	/* Sierra Wireless Modem */
+	{DEVICE_SWI(0x1199, 0x9055)},	/* Netgear AirCard 341U */
+	{DEVICE_SWI(0x1199, 0x9056)},	/* Sierra Wireless Modem */
+	{DEVICE_SWI(0x1199, 0x9060)},	/* Sierra Wireless Modem */
+	{DEVICE_SWI(0x1199, 0x9061)},	/* Sierra Wireless Modem */
+	{DEVICE_SWI(0x1199, 0x9062)},	/* Sierra Wireless EM7305 QDL */
+	{DEVICE_SWI(0x1199, 0x9063)},	/* Sierra Wireless EM7305 */
+	{DEVICE_SWI(0x1199, 0x9070)},	/* Sierra Wireless MC74xx */
+	{DEVICE_SWI(0x1199, 0x9071)},	/* Sierra Wireless MC74xx */
+	{DEVICE_SWI(0x1199, 0x9078)},	/* Sierra Wireless EM74xx */
+	{DEVICE_SWI(0x1199, 0x9079)},	/* Sierra Wireless EM74xx */
+	{DEVICE_SWI(0x1199, 0x907a)},	/* Sierra Wireless EM74xx QDL */
+	{DEVICE_SWI(0x1199, 0x907b)},	/* Sierra Wireless EM74xx */
+	{DEVICE_SWI(0x1199, 0x9090)},	/* Sierra Wireless EM7565 QDL */
+	{DEVICE_SWI(0x1199, 0x9091)},	/* Sierra Wireless EM7565 */
+	{DEVICE_SWI(0x1199, 0x90d2)},	/* Sierra Wireless EM9191 QDL */
+	{DEVICE_SWI(0x1199, 0xc080)},	/* Sierra Wireless EM7590 QDL */
+	{DEVICE_SWI(0x1199, 0xc081)},	/* Sierra Wireless EM7590 */
+	{DEVICE_SWI(0x413c, 0x81a2)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
+	{DEVICE_SWI(0x413c, 0x81a3)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
+	{DEVICE_SWI(0x413c, 0x81a4)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
+	{DEVICE_SWI(0x413c, 0x81a8)},	/* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
+	{DEVICE_SWI(0x413c, 0x81a9)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
+	{DEVICE_SWI(0x413c, 0x81b1)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
+	{DEVICE_SWI(0x413c, 0x81b3)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
+	{DEVICE_SWI(0x413c, 0x81b5)},	/* Dell Wireless 5811e QDL */
+	{DEVICE_SWI(0x413c, 0x81b6)},	/* Dell Wireless 5811e QDL */
+	{DEVICE_SWI(0x413c, 0x81c2)},	/* Dell Wireless 5811e */
+	{DEVICE_SWI(0x413c, 0x81cb)},	/* Dell Wireless 5816e QDL */
+	{DEVICE_SWI(0x413c, 0x81cc)},	/* Dell Wireless 5816e */
+	{DEVICE_SWI(0x413c, 0x81cf)},   /* Dell Wireless 5819 */
+	{DEVICE_SWI(0x413c, 0x81d0)},   /* Dell Wireless 5819 */
+	{DEVICE_SWI(0x413c, 0x81d1)},   /* Dell Wireless 5818 */
+	{DEVICE_SWI(0x413c, 0x81d2)},   /* Dell Wireless 5818 */
+
+	/* Huawei devices */
+	{DEVICE_HWI(0x03f0, 0x581d)},	/* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
+
+	{ }				/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static int handle_quectel_ec20(struct device *dev, int ifnum)
+{
+	int altsetting = 0;
+
+	/*
+	 * Quectel EC20 Mini PCIe LTE module layout:
+	 * 0: DM/DIAG (use libqcdm from ModemManager for communication)
+	 * 1: NMEA
+	 * 2: AT-capable modem port
+	 * 3: Modem interface
+	 * 4: NDIS
+	 */
+	switch (ifnum) {
+	case 0:
+		dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n");
+		break;
+	case 1:
+		dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n");
+		break;
+	case 2:
+	case 3:
+		dev_dbg(dev, "Quectel EC20 Modem port found\n");
+		break;
+	case 4:
+		/* Don't claim the QMI/net interface */
+		altsetting = -1;
+		break;
+	}
+
+	return altsetting;
+}
+
+static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
+{
+	struct usb_host_interface *intf = serial->interface->cur_altsetting;
+	struct device *dev = &serial->dev->dev;
+	int retval = -ENODEV;
+	__u8 nintf;
+	__u8 ifnum;
+	int altsetting = -1;
+	bool sendsetup = false;
+
+	/* we only support vendor specific functions */
+	if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
+		goto done;
+
+	nintf = serial->dev->actconfig->desc.bNumInterfaces;
+	dev_dbg(dev, "Num Interfaces = %d\n", nintf);
+	ifnum = intf->desc.bInterfaceNumber;
+	dev_dbg(dev, "This Interface = %d\n", ifnum);
+
+	if (nintf == 1) {
+		/* QDL mode */
+		/* Gobi 2000 has a single altsetting, older ones have two */
+		if (serial->interface->num_altsetting == 2)
+			intf = usb_altnum_to_altsetting(serial->interface, 1);
+		else if (serial->interface->num_altsetting > 2)
+			goto done;
+
+		if (intf && intf->desc.bNumEndpoints == 2 &&
+		    usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
+		    usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
+			dev_dbg(dev, "QDL port found\n");
+
+			if (serial->interface->num_altsetting == 1)
+				retval = 0; /* Success */
+			else
+				altsetting = 1;
+		}
+		goto done;
+
+	}
+
+	/* default to enabling interface */
+	altsetting = 0;
+
+	/*
+	 * Composite mode; don't bind to the QMI/net interface as that
+	 * gets handled by other drivers.
+	 */
+
+	switch (id->driver_info) {
+	case QCSERIAL_G1K:
+		/*
+		 * Gobi 1K USB layout:
+		 * 0: DM/DIAG (use libqcdm from ModemManager for communication)
+		 * 1: serial port (doesn't respond)
+		 * 2: AT-capable modem port
+		 * 3: QMI/net
+		 */
+		if (nintf < 3 || nintf > 4) {
+			dev_err(dev, "unknown number of interfaces: %d\n", nintf);
+			altsetting = -1;
+			goto done;
+		}
+
+		if (ifnum == 0) {
+			dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n");
+			altsetting = 1;
+		} else if (ifnum == 2)
+			dev_dbg(dev, "Modem port found\n");
+		else
+			altsetting = -1;
+		break;
+	case QCSERIAL_G2K:
+		/* handle non-standard layouts */
+		if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) {
+			altsetting = handle_quectel_ec20(dev, ifnum);
+			goto done;
+		}
+
+		/*
+		 * Gobi 2K+ USB layout:
+		 * 0: QMI/net
+		 * 1: DM/DIAG (use libqcdm from ModemManager for communication)
+		 * 2: AT-capable modem port
+		 * 3: NMEA
+		 */
+		if (nintf < 3 || nintf > 4) {
+			dev_err(dev, "unknown number of interfaces: %d\n", nintf);
+			altsetting = -1;
+			goto done;
+		}
+
+		switch (ifnum) {
+		case 0:
+			/* Don't claim the QMI/net interface */
+			altsetting = -1;
+			break;
+		case 1:
+			dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
+			break;
+		case 2:
+			dev_dbg(dev, "Modem port found\n");
+			break;
+		case 3:
+			/*
+			 * NMEA (serial line 9600 8N1)
+			 * # echo "\$GPS_START" > /dev/ttyUSBx
+			 * # echo "\$GPS_STOP"  > /dev/ttyUSBx
+			 */
+			dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
+			break;
+		}
+		break;
+	case QCSERIAL_SWI:
+		/*
+		 * Sierra Wireless layout:
+		 * 0: DM/DIAG (use libqcdm from ModemManager for communication)
+		 * 2: NMEA
+		 * 3: AT-capable modem port
+		 * 8: QMI/net
+		 */
+		switch (ifnum) {
+		case 0:
+			dev_dbg(dev, "DM/DIAG interface found\n");
+			break;
+		case 2:
+			dev_dbg(dev, "NMEA GPS interface found\n");
+			sendsetup = true;
+			break;
+		case 3:
+			dev_dbg(dev, "Modem port found\n");
+			sendsetup = true;
+			break;
+		default:
+			/* don't claim any unsupported interface */
+			altsetting = -1;
+			break;
+		}
+		break;
+	case QCSERIAL_HWI:
+		/*
+		 * Huawei devices map functions by subclass + protocol
+		 * instead of interface numbers. The protocol identify
+		 * a specific function, while the subclass indicate a
+		 * specific firmware source
+		 *
+		 * This is a list of functions known to be non-serial.  The rest
+		 * are assumed to be serial and will be handled by this driver
+		 */
+		switch (intf->desc.bInterfaceProtocol) {
+			/* QMI combined (qmi_wwan) */
+		case 0x07:
+		case 0x37:
+		case 0x67:
+			/* QMI data (qmi_wwan) */
+		case 0x08:
+		case 0x38:
+		case 0x68:
+			/* QMI control (qmi_wwan) */
+		case 0x09:
+		case 0x39:
+		case 0x69:
+			/* NCM like (huawei_cdc_ncm) */
+		case 0x16:
+		case 0x46:
+		case 0x76:
+			altsetting = -1;
+			break;
+		default:
+			dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n",
+				intf->desc.bInterfaceClass,
+				intf->desc.bInterfaceSubClass,
+				intf->desc.bInterfaceProtocol);
+		}
+		break;
+	default:
+		dev_err(dev, "unsupported device layout type: %lu\n",
+			id->driver_info);
+		break;
+	}
+
+done:
+	if (altsetting >= 0) {
+		retval = usb_set_interface(serial->dev, ifnum, altsetting);
+		if (retval < 0) {
+			dev_err(dev,
+				"Could not set interface, error %d\n",
+				retval);
+			retval = -ENODEV;
+		}
+	}
+
+	if (!retval)
+		usb_set_serial_data(serial, (void *)(unsigned long)sendsetup);
+
+	return retval;
+}
+
+static int qc_attach(struct usb_serial *serial)
+{
+	struct usb_wwan_intf_private *data;
+	bool sendsetup;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	sendsetup = !!(unsigned long)(usb_get_serial_data(serial));
+	if (sendsetup)
+		data->use_send_setup = 1;
+
+	spin_lock_init(&data->susp_lock);
+
+	usb_set_serial_data(serial, data);
+
+	return 0;
+}
+
+static void qc_release(struct usb_serial *serial)
+{
+	struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
+
+	usb_set_serial_data(serial, NULL);
+	kfree(priv);
+}
+
+static struct usb_serial_driver qcdevice = {
+	.driver = {
+		.owner     = THIS_MODULE,
+		.name      = "qcserial",
+	},
+	.description         = "Qualcomm USB modem",
+	.id_table            = id_table,
+	.num_ports           = 1,
+	.probe               = qcprobe,
+	.open		     = usb_wwan_open,
+	.close		     = usb_wwan_close,
+	.dtr_rts	     = usb_wwan_dtr_rts,
+	.write		     = usb_wwan_write,
+	.write_room	     = usb_wwan_write_room,
+	.chars_in_buffer     = usb_wwan_chars_in_buffer,
+	.tiocmget            = usb_wwan_tiocmget,
+	.tiocmset            = usb_wwan_tiocmset,
+	.attach              = qc_attach,
+	.release	     = qc_release,
+	.port_probe          = usb_wwan_port_probe,
+	.port_remove	     = usb_wwan_port_remove,
+#ifdef CONFIG_PM
+	.suspend	     = usb_wwan_suspend,
+	.resume		     = usb_wwan_resume,
+#endif
+};
+
+static struct usb_serial_driver * const serial_drivers[] = {
+	&qcdevice, NULL
+};
+
+module_usb_serial_driver(serial_drivers, id_table);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");