Commit graph

725412 commits

Author SHA1 Message Date
Alexey Dobriyan
96890d6252 net: delete /proc THIS_MODULE references
/proc has been ignoring struct file_operations::owner field for 10 years.
Specifically, it started with commit 786d7e1612
("Fix rmmod/read/write races in /proc entries"). Notice the chunk where
inode->i_fop is initialized with proxy struct file_operations for
regular files:

	-               if (de->proc_fops)
	-                       inode->i_fop = de->proc_fops;
	+               if (de->proc_fops) {
	+                       if (S_ISREG(inode->i_mode))
	+                               inode->i_fop = &proc_reg_file_ops;
	+                       else
	+                               inode->i_fop = de->proc_fops;
	+               }

VFS stopped pinning module at this point.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 15:01:33 -05:00
Jakub Kicinski
868717ae73 net: remove prototype of qdisc_lookup_class()
Looks like qdisc_lookup_class() never existed in the tree
in the git era.  Remove the prototype from the header.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:56:54 -05:00
Jon Maloy
e88f2be832 tipc: fix race condition at topology server receive
We have identified a race condition during reception of socket
events and messages in the topology server.

- The function tipc_close_conn() is releasing the corresponding
  struct tipc_subscriber instance without considering that there
  may still be items in the receive work queue. When those are
  scheduled, in the function tipc_receive_from_work(), they are
  using the subscriber pointer stored in struct tipc_conn, without
  first checking if this is valid or not. This will sometimes
  lead to crashes, as the next call of tipc_conn_recvmsg() will
  access the now deleted item.
  We fix this by making the usage of this pointer conditional on
  whether the connection is active or not. I.e., we check the condition
  test_bit(CF_CONNECTED) before making the call tipc_conn_recvmsg().

- Since the two functions may be running on different cores, the
  condition test described above is not enough. tipc_close_conn()
  may come in between and delete the subscriber item after the condition
  test is done, but before tipc_conn_recv_msg() is finished. This
  happens less frequently than the problem described above, but leads
  to the same symptoms.

  We fix this by using the existing sk_callback_lock for mutual
  exclusion in the two functions. In addition, we have to move
  a call to tipc_conn_terminate() outside the mentioned lock to
  avoid deadlock.

Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:42:41 -05:00
David S. Miller
10a435ab30 Merge branch 'aquantia-next'
Igor Russkikh says:

====================
Aquantia atlantic driver update 2018/01

This patch is a set of cleanups and bugfixes in preparation to new
Aquantia hardware support.

Standard ARRAY_SIZE is now used through all the code,
some unused abstraction structures removed and cleaned up,
duplicate declarations removed.

Also two large declaration styling fixes:
- Hardware register set defines are lined up with kernel style
- Hardware access functions were not prefixed, now already
  defined hw_atl prefix is used.

patch v2 changes:
- patch reorganized because of its big size. New HW support
  will be submitted as a separate patchset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:02 -05:00
Igor Russkikh
9ec03bf639 net: aquantia: Fix internal stats calculation on rx
skb len should be fetched before gro_receive - otherwise we may get
wrong or even outdated skb data.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:01 -05:00
Igor Russkikh
8e1c072fcb net: aquantia: Prepend hw access functions declarations with prefix
Internal functions for registers and HW access were not prefixed.
This introduce noise in global kernel symbols. Here we add explicit prefix
'hw_atl' to all the HW access layer functions.
Alignment and styling were fixed as well.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:01 -05:00
Igor Russkikh
3230d01171 net: aquantia: Fix register definitions to linux style
Original driver code had internal registers and masks declarations
in low case and without any prefix.
Here we make all these uppercase and add already used HW_ATL prefix
to recognize these.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:01 -05:00
Igor Russkikh
db55061564 net: aquantia: Eliminate aq_nic structure abstraction
aq_nic_s was hidden in aq_nic_internal.h, that made it difficult to access
nic fields and structures from other modules.
This change moves aq_nic_s struct into aq_nic.h and thus makes it available
to other driver modules, mainly pci module and hw related module.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:01 -05:00
Igor Russkikh
5b97b0d10e net: aquantia: Simplify dependencies between pci modules
Eliminate useless passing of net_device_ops and ethtools_ops through
deep chain of calls.
Move all pci related code into aq_pci_func module.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:00 -05:00
Igor Russkikh
4cbc9f92f9 net: aquantia: Add const qualifiers for hardware ops tables
Hardware operations and capabilities tables are constants and
never changed. Declare these as constants.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:00 -05:00
Igor Russkikh
c40d20150d net: aquantia: Remove duplicate hardware descriptors declarations
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:00 -05:00
Igor Russkikh
1a713f87a0 net: aquantia: Cleanup hardware access modules
Use direct aq_hw_s *self reference where possible
Eliminate useless abstraction PHAL, duplicated structures definitions,
Simplify nic config structure creation and management.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:00 -05:00
Igor Russkikh
78f5193dbc net: aquantia: Cleanup status flags accesses
Usage of aq_obj_s structure is noop, here we remove it
replacing access to flags filed directly.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:00 -05:00
Igor Russkikh
08b5cf08bc net: aquantia: Eliminate AQ_DIMOF, replace with ARRAY_SIZE
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:40:00 -05:00
David S. Miller
3b039b42e4 Merge branch 'net-thunderx-add-support-for-PTP-clock'
Aleksey Makarov says:

====================
net: thunderx: add support for PTP clock

This series adds support for IEEE 1588 Precision Time Protocol
to Cavium ethernet driver.

The first patch adds support for the Precision Time Protocol Clocks and
Timestamping coprocessor (PTP) found on Cavium processors.
It registers a new PTP clock in the PTP core and provides functions
to use the counter in BGX, TNS, GTI, and NIC blocks.

The second patch introduces support for the PTP protocol to the
Cavium ThunderX ethernet driver.

v6:
- check if ptp_clock_register() returns NULL (Richard Cochran)
- fix doc comment for cavium_ptp_enable() (Richard Cochran)
- fix a function call formatting; use defined constant (Richard Cochran)
- add comments for `tx_ptp_skbs` and `ptp_skb` (Richard Cochran)
- use adjfine() instead of adjfreq() (Richard Cochran)
- add Acked-by: Philippe Ombredanne <pombredanne@nexb.com>

v5: https://lkml.kernel.org/r/20171211141435.2915-1-aleksey.makarov@cavium.com
- fix the file headers (add SPDX tags, remove advertisment) (Philippe Ombredanne)
- use "imply" instead of "select" (Richard Cochran)
- add some code in cavium_ptp_get() for the case when the PTP driver has not been
  registered with the PTP core

v4: https://lkml.kernel.org/r/20171208103442.19354-1-aleksey.makarov@cavium.com
- use IS_ENABLED. This fixes compilation of the ptp as a module (David Miller)
- select PTP_1588_CLOCK, not depend on it.  This fixes a build warning.
- change u64 to __be64.  This fixes the sparse warning
  "warning: cast to restricted __be64"
- make nicvf_config_hwtstamp() static. This fixes the sparse warning
  "warning: symbol 'nicvf_config_hwtstamp' was not declared. Should it be static?"

v3: https://lkml.kernel.org/r/20171206133100.26436-1-aleksey.makarov@cavium.com
- rebase to net-next

v2: https://lkml.kernel.org/r/20171117134909.8954-1-aleksey.makarov@cavium.com
- use readq()/writeq() in place of cavium_ptp_reg_read()/cavium_ptp_reg_write(),
  don't use readq_relaxed()/writeq_relaxed() (David Daney)

v1: https://lkml.kernel.org/r/20171107190704.15458-1-aleksey.makarov@cavium.com
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:31:15 -05:00
Sunil Goutham
4a87550964 net: thunderx: add timestamping support
This adds timestamping support for both receive and transmit
paths. On the receive side no filters are supported i.e either
all pkts will get a timestamp appended infront of the packet or none.
On the transmit side HW doesn't support timestamp insertion but
only generates a separate CQE with transmitted packet's timestamp.
Also HW supports only one packet at a time for timestamping on the
transmit side.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@cavium.com>
Acked-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:31:14 -05:00
Radoslaw Biernacki
8c56df372b net: add support for Cavium PTP coprocessor
This patch adds support for the Precision Time Protocol
Clocks and Timestamping hardware found on Cavium ThunderX
processors.

Signed-off-by: Radoslaw Biernacki <rad@semihalf.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@cavium.com>
Acked-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:31:14 -05:00
Wei Yongjun
e02f08a070 mlxsw: spectrum: qdiscs: Make function mlxsw_sp_qdisc_prio_unoffload static
Fixes the following sparse warning:

drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:464:1: warning:
 symbol 'mlxsw_sp_qdisc_prio_unoffload' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:25:42 -05:00
David S. Miller
fedae6d7e6 Merge branch 'devlink-resource'
Jiri Pirko says:

====================
devlink: Add support for resource abstraction

Arkadi says:

Many of the ASIC's internal resources are limited and are shared between
several hardware procedures. For example, unified hash-based memory can
be used for many lookup purposes, like FDB and LPM. In many cases the user
can provide a partitioning scheme for such a resource in order to perform
fine tuning for his application. In such cases performing driver reload is
needed for the changes to take place, thus this patchset also adds support
for hot reload.

Such an abstraction can be coupled with devlink's dpipe interface, which
models the ASIC's pipeline as a graph of match/action tables. By modeling
the hardware resource object, and by coupling it to several dpipe tables,
further visibility can be achieved in order to debug ASIC-wide issues.

The proposed interface will provide the user the ability to understand the
limitations of the hardware, and receive notification regarding its occupancy.
Furthermore, monitoring the resource occupancy can be done in real-time and
can be useful in many cases.

---
v2->v3
- Mix/Max/Gran attributes.
- Add resource consumption per table.
- Change basic resource unit to 'entry'.
- ABI documentation.

v1->v2
- Add resource size attribute.
- Fix split bug.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:36 -05:00
Arkadi Sharshevsky
f261708b92 mlxsw: documentation: Add resources ABI documentation
Add resources ABI documentation.

Signed-off-by: Arkadi Sharhsevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:35 -05:00
Arkadi Sharshevsky
24cc68ad6c mlxsw: core: Add support for reload
Add support for hot reload. First, all the driver/core resources are
released but the PCI and devlink instances, then reset is performed
through the PCI interface. Finally the driver performs initialization.

In case of reload failure the driver is left in a partially initialized
state. Special care is taken during the driver removal in order to
properly handle this state.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:35 -05:00
Arkadi Sharshevsky
e21d21ca31 mlxsw: pci: Add support for getting resource through devlink
Up until now the KVD partition was static. This patch introduces the
ability to get the resource sizes via devlink. In case the resource is not
available the default configuration is used.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:35 -05:00
Arkadi Sharshevsky
afadc26b3a mlxsw: spectrum: Add support for getting kvdl occupancy
Add support for getting the kvdl occupancy through the resource interface.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:35 -05:00
Arkadi Sharshevsky
c0253a45fd mlxsw: spectrum_dpipe: Connect dpipe tables to resources
Connect current dpipe tables to resources. The tables are connected
in the following fashion:
1. IPv4 host -> KVD hash single
2. IPv6 host -> KVD hash double
3. Adjacency -> KVD linear

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:35 -05:00
Arkadi Sharshevsky
ef3116e540 mlxsw: spectrum: Register KVD resources with devlink
Register the KVD resources with devlink. The KVD is a memory resource
which is subdivided into three partitions which are the linear, hash
single and hash double.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:35 -05:00
Arkadi Sharshevsky
54a2e8d456 mlxsw: pci: Add support for performing bus reset
This is a preparation stage before introducing hot reload. During the
reload process the ASIC should be resetted by accessing the PCI BAR due
to unavailability of the mailbox/emad interfaces.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:35 -05:00
Arkadi Sharshevsky
56dc7cd0a8 devlink: Add relation between dpipe and resource
The hardware processes which are modeled via dpipe commonly use some
internal hardware resources. Such relation can improve the understanding
of hardware limitations. The number of resource's unit consumed per
table's entry are also provided for each table.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:34 -05:00
Arkadi Sharshevsky
2d8dc5bbf4 devlink: Add support for reload
Add support for performing driver hot reload.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:34 -05:00
Arkadi Sharshevsky
d9f9b9a4d0 devlink: Add support for resource abstraction
Add support for hardware resource abstraction over devlink. Each resource
is identified via id, furthermore it contains information regarding its
size and its related sub resources. Each resource can also provide its
current occupancy.

In some cases the sizes of some resources can be changed, yet for those
changes to take place a hot driver reload may be needed. The reload
capability will be introduced in the next patch.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:34 -05:00
Arkadi Sharshevsky
2406e7e546 devlink: Add per devlink instance lock
This is a preparation before introducing resources and hot reload support.
Currently there are two global lock where one protects all devlink access,
and the second one protects devlink port access. This patch adds per devlink
instance lock which protects the internal members which are the sb/dpipe/
resource/ports. By introducing this lock the global devlink port lock can
be discarded.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 14:15:34 -05:00
Heiner Kallweit
d98c8ccdeb phy: realtek: use new helpers for paged register access
Make use of the new helpers for paged register access.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 13:56:33 -05:00
David S. Miller
ccc27fcb8b Merge branch 'phy-add-helpers-for-setting-clearing-bits-in-PHY-registers'
Heiner Kallweit says:

====================
phy: add helpers for setting/clearing bits in PHY registers

Based on the recent introduction of phy_modify add helpers for setting
and clearing bits in PHY registers. First user is phylib.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 12:25:11 -05:00
Heiner Kallweit
032f470081 phy: use new helpers phy_set_bits/phy_clear_bits in phylib
Use new helpers phy_set_bits / phy_clear_bits in phylib.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 12:25:10 -05:00
Heiner Kallweit
ac8322d806 phy: add helpers for setting/clearing bits in PHY registers
Based on the recent introduction of phy_modify add helpers for setting
and clearing bits in PHY registers.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16 12:25:10 -05:00
David S. Miller
79d891c1bb linux-can-next-for-4.16-20180105
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Merge tag 'linux-can-next-for-4.16-20180105' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2017-12-01,Re: pull-request: can-next

this is a pull request of 7 patches for net-next/master.

All patches are by me. Patch 6 is for the "can_raw" protocol and add
error checking to the bind() function. All other patches clean up the
coding style and remove unused parameters in various CAN drivers and
infrastructure.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 16:13:34 -05:00
David S. Miller
5138eb9b2a Merge branch 'sh_eth-simplify-TSU-initialization'
Sergei Shtylyov says:

====================
sh_eth: simplify TSU initialization

Here's a set of 2 patches against DaveM's 'net-next.git' repo. With those,
I'm somewhat simplifying the TSU init code in the driver probe() method...
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 15:09:46 -05:00
Sergei Shtylyov
9662ec1922 sh_eth: get Ether port # only when needed
The dual-port Ether configurations always have a shared TSU to e.g. pass
the packets between those  ports.  With the  TSU init. code gathered under
the single *if*, we now can only get the port # from 'platform_device::id'
only when we actually  need it  (and not recalculate it each time)...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 15:09:46 -05:00
Sergei Shtylyov
3e14c969a4 sh_eth: gather all TSU init code in one place
The  sh_eth_cpu_data::chip_reset() method  always resets using ARSTR and
this register is always located at the start of the  TSU register region.
Therefore, we can  only call  this method if we know TSU is there and thus
simplify  the probing code a  bit...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 15:09:45 -05:00
David S. Miller
d9631c7a5d wireless-drivers-next patches for 4.16
Here are patches which have been accumulating over the holidays and
 after the New Year. Business as usual and nothing special really
 standing out.
 
 But what's noteworthy here is that Larry Finger is stepping down as
 the rtlwifi maintainer. He has been maintaining rtlwifi since it was
 applied back in 2010 in commit 0c8173385e ("rtl8192ce: Add new
 driver") and it has been no easy role trying to juggle between the
 vendor, demanding upstream community and users. So big thank you to
 Larry for all his efforts!
 
 ath10k
 
 * more preparation work for wcn3990 support
 
 * add memory dump to firmware coredump files
 
 wil6210
 
 * support scheduled scan
 
 * support 40-bit DMA addresses
 
 qtnfmac
 
 * support MAC address based access control
 
 * support for radar detection and Channel Availibility Check (CAC)
 
 mwifiex
 
 * firmware coredump for usb devices
 
 rtlwifi
 
 * Larry Finger steps down as the maintainer and Ping-Ke Shih becomes
   the new maintainer
 
 * add debugfs interfaces to dump register and btcoex status, and also
   write registers and h2c
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Merge tag 'wireless-drivers-next-for-davem-2018-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.16

Here are patches which have been accumulating over the holidays and
after the New Year. Business as usual and nothing special really
standing out.

But what's noteworthy here is that Larry Finger is stepping down as
the rtlwifi maintainer. He has been maintaining rtlwifi since it was
applied back in 2010 in commit 0c8173385e ("rtl8192ce: Add new
driver") and it has been no easy role trying to juggle between the
vendor, demanding upstream community and users. So big thank you to
Larry for all his efforts!

ath10k

* more preparation work for wcn3990 support

* add memory dump to firmware coredump files

wil6210

* support scheduled scan

* support 40-bit DMA addresses

qtnfmac

* support MAC address based access control

* support for radar detection and Channel Availibility Check (CAC)

mwifiex

* firmware coredump for usb devices

rtlwifi

* Larry Finger steps down as the maintainer and Ping-Ke Shih becomes
  the new maintainer

* add debugfs interfaces to dump register and btcoex status, and also
  write registers and h2c
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:46:16 -05:00
Linus Walleij
4d5ae32f5e net: ethernet: Add a driver for Gemini gigabit ethernet
The Gemini ethernet has been around for years as an out-of-tree
patch used with the NAS boxen and routers built on StorLink
SL3512 and SL3516, later Storm Semiconductor, later Cortina
Systems. These ASICs are still being deployed and brand new
off-the-shelf systems using it can easily be acquired.

The full name of the IP block is "Net Engine and Gigabit
Ethernet MAC" commonly just called "GMAC".

The hardware block contains a common TCP Offload Enginer (TOE)
that can be used by both MACs. The current driver does not use
it.

Cc: Tobias Waldvogel <tobias.waldvogel@gmail.com>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:38:55 -05:00
Linus Walleij
1c2f11466b net: ethernet: Add DT bindings for the Gemini ethernet
This adds the device tree bindings for the Gemini ethernet
controller. It is pretty straight-forward, using standard
bindings and modelling the two child ports as child devices
under the parent ethernet controller device.

Cc: devicetree@vger.kernel.org
Cc: Tobias Waldvogel <tobias.waldvogel@gmail.com>
Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:38:55 -05:00
Ido Schimmel
6802f3adcb ipv6: Fix build with gcc-4.4.5
Emil reported the following compiler errors:

net/ipv6/route.c: In function `rt6_sync_up`:
net/ipv6/route.c:3586: error: unknown field `nh_flags` specified in initializer
net/ipv6/route.c:3586: warning: missing braces around initializer
net/ipv6/route.c:3586: warning: (near initialization for `arg.<anonymous>`)
net/ipv6/route.c: In function `rt6_sync_down_dev`:
net/ipv6/route.c:3695: error: unknown field `event` specified in initializer
net/ipv6/route.c:3695: warning: missing braces around initializer
net/ipv6/route.c:3695: warning: (near initialization for `arg.<anonymous>`)

Problem is with the named initializers for the anonymous union members.
Fix this by adding curly braces around the initialization.

Fixes: 4c981e28d3 ("ipv6: Prepare to handle multiple netdev events")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Emil S Tantilov <emils.tantilov@gmail.com>
Tested-by: Emil S Tantilov <emils.tantilov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:28:05 -05:00
Jon Maloy
e9a034456a tipc: fix bug during lookup of multicast destination nodes
In commit 232d07b74a ("tipc: improve groupcast scope handling") we
inadvertently broke non-group multicast transmission when changing the
parameter 'domain' to 'scope' in the function
tipc_nametbl_lookup_dst_nodes(). We missed to make the corresponding
change in the calling function, with the result that the lookup always
fails.

A closer anaysis reveals that this parameter is not needed at all.
Non-group multicast is hard coded to use CLUSTER_SCOPE, and in the
current implementation this will be delivered to all matching
destinations except those which are published with NODE_SCOPE on other
nodes. Since such publications never will be visible on the sending node
anyway, it makes no sense to discriminate by scope at all.

We now remove this parameter altogether.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:27:13 -05:00
Kirill Tkhai
273c28bc57 net: Convert atomic_t net::count to refcount_t
Since net could be obtained from RCU lists,
and there is a race with net destruction,
the patch converts net::count to refcount_t.

This provides sanity checks for the cases of
incrementing counter of already dead net,
when maybe_get_net() has to used instead
of get_net().

Drivers: allyesconfig and allmodconfig are OK.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 14:23:42 -05:00
Marcelo Ricardo Leitner
594831a8ab sctp: removed unused var from sctp_make_auth
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:59:42 -05:00
Heiner Kallweit
28b2e0d2cd net: phy: remove parameter new_link from phy_mac_interrupt()
I see two issues with parameter new_link:

1. It's not needed. See also phy_interrupt(), works w/o this parameter.
   phy_mac_interrupt sets the state to PHY_CHANGELINK and triggers the
   state machine which then calls phy_read_status. And phy_read_status
   updates the link state.

2. phy_mac_interrupt is used in interrupt context and getting the link
   state may sleep (at least when having to access the PHY registers
   via MDIO bus).

So let's remove it.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:45:03 -05:00
Jon Maloy
febafc8455 tipc: fix a potental access after delete in tipc_sk_join()
In commit d12d2e12ce "tipc: send out join messages as soon as new
member is discovered") we added a call to the function tipc_group_join()
without considering the case that the preceding tipc_sk_publish() might
have failed, and the group item already deleted.

We fix this by returning from tipc_sk_join() directly after the
failed tipc_sk_publish.

Reported-by: syzbot+e3eeae78ea88b8d6d858@syzkaller.appspotmail.com
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:43:51 -05:00
David S. Miller
2c76b34898 Merge branch 'dsa-lan9303-check-error-value-from-devm_gpiod_get_optional'
Phil Reid says:

====================
net: dsa: lan9303: check error value from devm_gpiod_get_optional()

Errors need to be prograted back from probe.

Note: I have only compile tested the code as I don't have the hardware.
Egil Hjelmeland <privat@egil-hjelmeland.no> has tested it but I haven't
added at Test-by: wasn't in the standard form. Not sure if that's ok or
not.

Changes from v1:
- rebased on net-next
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:18:03 -05:00
Phil Reid
f16891326c net: dsa: lan9303: check error value from devm_gpiod_get_optional()
devm_gpiod_get_optional() can return an error in addition to a NULL ptr.
Check for error and propagate that to the probe function. Check return
value in probe. This will now handle EPROBE_DEFER for the reset gpio.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:18:02 -05:00
Phil Reid
a57d476d97 net: dsa: lan9303: make lan9303_handle_reset() a void function
lan9303_handle_reset never returns anything other than success.
So there's not need for it to return an error code.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-15 13:18:02 -05:00