linux-stable.git/drivers/net/usb, branch v4.14.44

net-usb: add qmi_wwan if on lte modem wistron neweb d18q1

2018-05-25T14:17:38+00:00

[ Upstream commit d4c4bc11353f3bea6754f7d21e3612c9f32d1d64 ]

This modem is embedded on dlink dwr-921 router.
    The oem configuration states:

    T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=1435 ProdID=0918 Rev= 2.32
    S:  Manufacturer=Android
    S:  Product=Android
    S:  SerialNumber=0123456789ABCDEF
    C:* #Ifs= 7 Cfg#= 1 Atr=80 MxPwr=500mA
    I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
    E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
    E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E:  Ad=84(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
    E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
    E:  Ad=86(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
    E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
    E:  Ad=88(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
    E:  Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
    E:  Ad=8a(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
    E:  Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 6 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
    E:  Ad=8b(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

Tested on openwrt distribution

Signed-off-by: Giuseppe Lippolis 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

net/usb/qmi_wwan.c: Add USB id for lt4120 modem

2018-05-25T14:17:38+00:00

[ Upstream commit f3d801baf118c9d452ee7c278df16880c892e669 ]

This is needed to support the modem found in HP EliteBook 820 G3.

Signed-off-by: Torsten Hilbrich 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

net: usbnet: fix potential deadlock on 32bit hosts

2018-05-25T14:17:37+00:00

[ Upstream commit 2695578b896aea472b2c0dcbe9d92daa71738484 ]

Marek reported a LOCKDEP issue occurring on 32bit host,
that we tracked down to the fact that usbnet could either
run from soft or hard irqs.

This patch adds u64_stats_update_begin_irqsave() and
u64_stats_update_end_irqrestore() helpers to solve this case.

[   17.768040] ================================
[   17.772239] WARNING: inconsistent lock state
[   17.776511] 4.16.0-rc3-next-20180227-00007-g876c53a7493c #453 Not tainted
[   17.783329] --------------------------------
[   17.787580] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
[   17.793607] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[   17.798751]  (&syncp->seq#5){?.-.}, at: [<9b22e5f0>]
asix_rx_fixup_internal+0x188/0x288
[   17.806790] {IN-HARDIRQ-W} state was registered at:
[   17.811677]   tx_complete+0x100/0x208
[   17.815319]   __usb_hcd_giveback_urb+0x60/0xf0
[   17.819770]   xhci_giveback_urb_in_irq+0xa8/0x240
[   17.824469]   xhci_td_cleanup+0xf4/0x16c
[   17.828367]   xhci_irq+0xe74/0x2240
[   17.831827]   usb_hcd_irq+0x24/0x38
[   17.835343]   __handle_irq_event_percpu+0x98/0x510
[   17.840111]   handle_irq_event_percpu+0x1c/0x58
[   17.844623]   handle_irq_event+0x38/0x5c
[   17.848519]   handle_fasteoi_irq+0xa4/0x138
[   17.852681]   generic_handle_irq+0x18/0x28
[   17.856760]   __handle_domain_irq+0x6c/0xe4
[   17.860941]   gic_handle_irq+0x54/0xa0
[   17.864666]   __irq_svc+0x70/0xb0
[   17.867964]   arch_cpu_idle+0x20/0x3c
[   17.871578]   arch_cpu_idle+0x20/0x3c
[   17.875190]   do_idle+0x144/0x218
[   17.878468]   cpu_startup_entry+0x18/0x1c
[   17.882454]   start_kernel+0x394/0x400
[   17.886177] irq event stamp: 161912
[   17.889616] hardirqs last  enabled at (161912): [<7bedfacf>]
__netdev_alloc_skb+0xcc/0x140
[   17.897893] hardirqs last disabled at (161911): []
__netdev_alloc_skb+0x94/0x140
[   17.904903] exynos5-hsi2c 12ca0000.i2c: tx timeout
[   17.906116] softirqs last  enabled at (161904): [<387102ff>]
irq_enter+0x78/0x80
[   17.906123] softirqs last disabled at (161905): []
irq_exit+0x134/0x158
[   17.925722].
[   17.925722] other info that might help us debug this:
[   17.933435]  Possible unsafe locking scenario:
[   17.933435].
[   17.940331]        CPU0
[   17.942488]        ----
[   17.944894]   lock(&syncp->seq#5);
[   17.948274]   
[   17.950847]     lock(&syncp->seq#5);
[   17.954386].
[   17.954386]  *** DEADLOCK ***
[   17.954386].
[   17.962422] no locks held by swapper/0/0.

Fixes: c8b5d129ee29 ("net: usbnet: support 64bit stats")
Signed-off-by: Eric Dumazet 
Reported-by: Marek Szyprowski 
Cc: Greg Ungerer 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

qmi_wwan: do not steal interfaces from class drivers

2018-05-19T08:20:24+00:00

[ Upstream commit 5697db4a696c41601a1d15c1922150b4dbf5726c ]

The USB_DEVICE_INTERFACE_NUMBER matching macro assumes that
the { vendorid, productid, interfacenumber } set uniquely
identifies one specific function.  This has proven to fail
for some configurable devices. One example is the Quectel
EM06/EP06 where the same interface number can be either
QMI or MBIM, without the device ID changing either.

Fix by requiring the vendor-specific class for interface number
based matching.  Functions of other classes can and should use
class based matching instead.

Fixes: 03304bcb5ec4 ("net: qmi_wwan: use fixed interface number matching")
Signed-off-by: Bjørn Mork 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

NET: usb: qmi_wwan: add support for ublox R410M PID 0x90b2

2018-05-09T07:51:52+00:00

commit 9306b38e42cb266f98bff6f6f4c1c652aa79ba45 upstream.

This patch adds support for PID 0x90b2 of ublox R410M.

qmicli -d /dev/cdc-wdm0 --dms-get-manufacturer
[/dev/cdc-wdm0] Device manufacturer retrieved:
        Manufacturer: 'u-blox'

qmicli -d /dev/cdc-wdm0 --dms-get-model
[/dev/cdc-wdm0] Device model retrieved:
        Model: 'SARA-R410M-02B'

Signed-off-by: SZ Lin (林上智) 
Cc: stable 
Acked-by: Bjørn Mork 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

lan78xx: Correctly indicate invalid OTP

2018-04-19T06:56:16+00:00

[ Upstream commit 4bfc33807a9a02764bdd1e42e794b3b401240f27 ]

lan78xx_read_otp tries to return -EINVAL in the event of invalid OTP
content, but the value gets overwritten before it is returned and the
read goes ahead anyway. Make the read conditional as it should be
and preserve the error code.

Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Phil Elwell 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

cdc_ether: flag the Cinterion AHS8 modem by gemalto as WWAN

2018-04-19T06:56:15+00:00

[ Upstream commit 53765341ee821c0a0f1dec41adc89c9096ad694c ]

The Cinterion AHS8 is a 3G device with one embedded WWAN interface
using cdc_ether as a driver.

The modem is controlled via AT commands through the exposed TTYs.

AT+CGDCONT write command can be used to activate or deactivate a WWAN
connection for a PDP context defined with the same command. UE
supports one WWAN adapter.

Signed-off-by: Bassem Boubaker 
Acked-by: Oliver Neukum 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

lan78xx: Crash in lan78xx_writ_reg (Workqueue: events lan78xx_deferred_multicast_write)

2018-04-12T10:32:23+00:00

[ Upstream commit 2d2d99ec13f62d5d2cecb6169dfdb6bbe05356d0 ]

Description:
Crash was reported with syzkaller pointing to lan78xx_write_reg routine.

Root-cause:
Proper cleanup of workqueues and init/setup routines was not happening
in failure conditions.

Fix:
Handled the error conditions by cleaning up the queues and init/setup
routines.

Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Reported-by: Andrey Konovalov 
Signed-off-by: Raghuram Chary J 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

qmi_wwan: set FLAG_SEND_ZLP to avoid network initiated disconnect

2018-03-24T10:01:23+00:00

[ Upstream commit 245d21190aec547c0de64f70c0e6de871c185a24 ]

It has been reported that the dummy byte we add to avoid
ZLPs can be forwarded by the modem to the PGW/GGSN, and that
some operators will drop the connection if this happens.

In theory, QMI devices are based on CDC ECM and should as such
both support ZLPs and silently ignore the dummy byte.  The latter
assumption failed.  Let's test out the first.

Signed-off-by: Bjørn Mork 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

NET: usb: qmi_wwan: add support for YUGA CLM920-NC5 PID 0x9625

2018-03-03T09:24:33+00:00

[ Upstream commit bd30ffc414e55194ed6149fad69a145550cb7c18 ]

This patch adds support for PID 0x9625 of YUGA CLM920-NC5.

YUGA CLM920-NC5 needs to enable QMI_WWAN_QUIRK_DTR before QMI operation.

qmicli -d /dev/cdc-wdm0 -p --dms-get-revision
[/dev/cdc-wdm0] Device revision retrieved:
        Revision: 'CLM920_NC5-V1  1  [Oct 23 2016 19:00:00]'

Signed-off-by: SZ Lin (林上智) 
Acked-by: Bjørn Mork 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman