Commit Graph

827346 Commits

Author SHA1 Message Date
Kavya Sree Kotagiri
edeb207b8a net: phy: vitesse: Remove support for VSC8514.
Add support for VSC8514 in Microsemi driver (mscc.c)
with more features.

Signed-off-by: Kavya Sree Kotagiri <kavyasree.kotagiri@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-23 10:47:58 -07:00
Kavya Sree Kotagiri
e4f9ba642f net: phy: mscc: add support for VSC8514 PHY.
The VSC8514 PHY is a 4-ports PHY that is 10/100/1000BASE-T, 100BASE-FX,
1000BASE-X, can communicate with the MAC via QSGMII.
The MAC interface protocol for each port within QSGMII can
be either 1000BASE-X or SGMII, if the QSGMII MAC that the VSC8514 is
connecting to supports this functionality.
VSC8514 also supports SGMII MAC-side autonegotiation on each individual
port, downshifting, can set the blinking pattern of each of its 4 LEDs,
SyncE, 1000BASE-T Ring Resiliency as well as HP Auto-MDIX detection.

This adds support for 10BASE-T, 100BASE-TX, and 1000BASE-T,
QSGMII link with the MAC, downshifting, HP Auto-MDIX detection
and blinking pattern for its 4 LEDs.

The GPIO register bank is a set of registers that are common to all PHYs
in the package. So any modification in any register of this bank affects
all PHYs of the package.

If the PHYs haven't been reset before booting the Linux kernel and were
configured to use interrupts for e.g. link status updates, it is
required to clear the interrupts mask register of all PHYs before being
able to use interrupts with any PHY. The first PHY of the package that
will be init will take care of clearing all PHYs interrupts mask
registers. Thus, we need to keep track of the init sequence in the
package, if it's already been done or if it's to be done.

Most of the init sequence of a PHY of the package is common to all PHYs
in the package, thus we use the SMI broadcast feature which enables us
to propagate a write in one register of one PHY to all PHYs in the same
package.

Signed-off-by: Kavya Sree Kotagiri <kavyasree.kotagiri@microchip.com>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Co-developed-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-23 10:47:58 -07:00
Jian Shen
a93f7fe134 net: phy: marvell: add new default led configure for m88e151x
The default m88e151x LED configuration is 0x1177, used LED[0]
for 1000M link, LED[1] for 100M link, and LED[2] for active.
But for some boards, which use LED[0] for link, and LED[1] for
active, prefer to be 0x1040. To be compatible with this case,
this patch defines a new dev_flag, and set it before connect
phy in HNS3 driver. When phy initializing, using the new
LED configuration if this dev_flag is set.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-23 10:40:32 -07:00
Florian Fainelli
7e6e185c74 net: systemport: Remove need for DMA descriptor
All we do is write the length/status and address bits to a DMA
descriptor only to write its contents into on-chip registers right
after, eliminate this unnecessary step.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:20:15 -07:00
Ido Schimmel
697cd36cda bridge: Fix possible use-after-free when deleting bridge port
When a bridge port is being deleted, do not dereference it later in
br_vlan_port_event() as it can result in a use-after-free [1] if the RCU
callback was executed before invoking the function.

[1]
[  129.638551] ==================================================================
[  129.646904] BUG: KASAN: use-after-free in br_vlan_port_event+0x53c/0x5fd
[  129.654406] Read of size 8 at addr ffff8881e4aa1ae8 by task ip/483
[  129.663008] CPU: 0 PID: 483 Comm: ip Not tainted 5.1.0-rc5-custom-02265-ga946bd73daac #1383
[  129.672359] Hardware name: Mellanox Technologies Ltd. MSN2100-CB2FO/SA001017, BIOS 5.6.5 06/07/2016
[  129.682484] Call Trace:
[  129.685242]  dump_stack+0xa9/0x10e
[  129.689068]  print_address_description.cold.2+0x9/0x25e
[  129.694930]  kasan_report.cold.3+0x78/0x9d
[  129.704420]  br_vlan_port_event+0x53c/0x5fd
[  129.728300]  br_device_event+0x2c7/0x7a0
[  129.741505]  notifier_call_chain+0xb5/0x1c0
[  129.746202]  rollback_registered_many+0x895/0xe90
[  129.793119]  unregister_netdevice_many+0x48/0x210
[  129.803384]  rtnl_delete_link+0xe1/0x140
[  129.815906]  rtnl_dellink+0x2a3/0x820
[  129.844166]  rtnetlink_rcv_msg+0x397/0x910
[  129.868517]  netlink_rcv_skb+0x137/0x3a0
[  129.882013]  netlink_unicast+0x49b/0x660
[  129.900019]  netlink_sendmsg+0x755/0xc90
[  129.915758]  ___sys_sendmsg+0x761/0x8e0
[  129.966315]  __sys_sendmsg+0xf0/0x1c0
[  129.988918]  do_syscall_64+0xa4/0x470
[  129.993032]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  129.998696] RIP: 0033:0x7ff578104b58
...
[  130.073811] Allocated by task 479:
[  130.077633]  __kasan_kmalloc.constprop.5+0xc1/0xd0
[  130.083008]  kmem_cache_alloc_trace+0x152/0x320
[  130.088090]  br_add_if+0x39c/0x1580
[  130.092005]  do_set_master+0x1aa/0x210
[  130.096211]  do_setlink+0x985/0x3100
[  130.100224]  __rtnl_newlink+0xc52/0x1380
[  130.104625]  rtnl_newlink+0x6b/0xa0
[  130.108541]  rtnetlink_rcv_msg+0x397/0x910
[  130.113136]  netlink_rcv_skb+0x137/0x3a0
[  130.117538]  netlink_unicast+0x49b/0x660
[  130.121939]  netlink_sendmsg+0x755/0xc90
[  130.126340]  ___sys_sendmsg+0x761/0x8e0
[  130.130645]  __sys_sendmsg+0xf0/0x1c0
[  130.134753]  do_syscall_64+0xa4/0x470
[  130.138864]  entry_SYSCALL_64_after_hwframe+0x49/0xbe

[  130.146195] Freed by task 0:
[  130.149421]  __kasan_slab_free+0x125/0x170
[  130.154016]  kfree+0xf3/0x310
[  130.157349]  kobject_put+0x1a8/0x4c0
[  130.161363]  rcu_core+0x859/0x19b0
[  130.165175]  __do_softirq+0x250/0xa26
[  130.170956] The buggy address belongs to the object at ffff8881e4aa1ae8
                which belongs to the cache kmalloc-1k of size 1024
[  130.184972] The buggy address is located 0 bytes inside of
                1024-byte region [ffff8881e4aa1ae8, ffff8881e4aa1ee8)

Fixes: 9c0ec2e718 ("bridge: support binding vlan dev link state to vlan member bridge ports")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Cc: Mike Manning <mmanning@vyatta.att-mail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Mike Manning <mmanning@vyatta.att-mail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:17:47 -07:00
Crag.Wang
a6cbcb7793 r8152: sync sa_family with the media type of network device
Without this patch the socket address family sporadically gets wrong
value ends up the dev_set_mac_address() fails to set the desired MAC
address.

Fixes: 25766271e4 ("r8152: Refresh MAC address during USBDEVFS_RESET")
Signed-off-by: Crag.Wang <crag.wang@dell.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-By: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:14:43 -07:00
David S. Miller
6f97955fd2 Merge branch 'mlxsw-Shared-buffer-improvements'
Ido Schimmel says:

====================
mlxsw: Shared buffer improvements

This patchset includes two improvements with regards to shared buffer
configuration in mlxsw.

The first part of this patchset forbids the user from performing illegal
shared buffer configuration that can result in unnecessary packet loss.
In order to better communicate these configuration failures to the user,
extack is propagated from devlink towards drivers. This is done in
patches #1-#8.

The second part of the patchset deals with the shared buffer
configuration of the CPU port. When a packet is trapped by the device,
it is sent across the PCI bus to the attached host CPU. From the
device's perspective, it is as if the packet is transmitted through the
CPU port.

While testing traffic directed at the CPU it became apparent that for
certain packet sizes and certain burst sizes, the current shared buffer
configuration of the CPU port is inadequate and results in packet drops.
The configuration is adjusted by patches #9-#14 that create two new pools
- ingress & egress - which are dedicated for CPU traffic.
====================

Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:33 -07:00
Ido Schimmel
7a1ff9f45b mlxsw: spectrum_buffers: Adjust CPU port shared buffer egress quotas
Switch the CPU port to use the new dedicated egress pool instead the
previously used egress pool which was shared with normal front panel
ports.

Add per-port quotas for the amount of traffic that can be buffered for
the CPU port and also adjust the per-{port, TC} quotas.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:33 -07:00
Ido Schimmel
6d28725c4d mlxsw: spectrum_buffers: Allow skipping ingress port quota configuration
The CPU port is used to transmit traffic that is trapped to the host
CPU. It is therefore irrelevant to define ingress quota for it.

Add a 'skip_ingress' argument to the function tasked with configuring
per-port quotas, so that ingress quotas could be skipped in case the
passed local port is the CPU port.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:33 -07:00
Ido Schimmel
24a7cc1ef6 mlxsw: spectrum_buffers: Split business logic from mlxsw_sp_port_sb_pms_init()
The function is used to set the per-port shared buffer quotas.
Currently, these quotas are only set for front panel ports, but a
subsequent patch will configure these quotas for the CPU port as well.

The configuration required for the CPU port is a bit different than that
of the front panel ports, so split the business logic into a separate
function which will be called with different parameters for the CPU
port.

No functional changes intended.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:33 -07:00
Ido Schimmel
50b5b90514 mlxsw: spectrum_buffers: Use new CPU ingress pool for control packets
Use the new ingress pool that was added in the previous patch for
control packets (e.g., STP, LACP) that are trapped to the CPU.

The previous management pool is no longer necessary and therefore its
size is set to 0.

The maximum quota for traffic towards the CPU is increased to 50% of the
free space in the new ingress pool and therefore the reserved space is
reduced by half, to 10KB - in both the shared and headroom buffer. This
allows for more efficient utilization of the shared buffer as reserved
space cannot be used for other purposes.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:33 -07:00
Ido Schimmel
265c49b4b9 mlxsw: spectrum_buffers: Add pools for CPU traffic
Packets that are trapped to the CPU are transmitted through the CPU port
to the attached host. The CPU port is therefore like any other port and
needs to have shared buffer configuration.

The maximum quotas configured for the CPU are provided using dynamic
threshold and cannot be changed by the user. In order to make sure that
these thresholds are always valid, the configuration of the threshold
type of these pools is forbidden.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
857f138f04 mlxsw: spectrum_buffers: Remove assumption about pool order
The code currently assumes that ingress pools have lower indices than
egress pools. This makes it impossible to add more ingress pools
without breaking user configuration that relies on a certain pool index
to correspond to an egress pool.

Remove such assumptions from the code, so that more ingress pools could
be added by subsequent patches.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
f1aaeacdae mlxsw: spectrum_buffers: Forbid changing multicast TCs' attributes
Commit e83c045e53 ("mlxsw: spectrum_buffers: Configure MC pool")
configured the threshold of the multicast TCs as infinite so that the
admission of multicast packets is only depended on per-switch priority
threshold.

Forbid the user from changing the thresholds of these multicast TCs and
their binding to a different pool.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
51e15a4978 mlxsw: spectrum_buffers: Forbid changing threshold type of first egress pool
Multicast packets have three egress quotas:
* Per egress port
* Per egress port and traffic class
* Per switch priority

The limits on the switch priority are not exposed to the user and
specified as dynamic threshold on the first egress pool.

Forbid changing the threshold type of the first egress pool so that
these limits are always valid.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
cce7acca8a mlxsw: spectrum_buffers: Forbid configuration of multicast pool
Commit e83c045e53 ("mlxsw: spectrum_buffers: Configure MC pool") added
a dedicated pool for multicast traffic. The pool is visible to the user
so that it would be possible to monitor its occupancy, but its
configuration should be forbidden in order to maintain its intended
operation.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
f7936d0bcf mlxsw: spectrum_buffers: Add ability to veto TC's configuration
Subsequent patches are going to need to veto changes in certain TCs'
binding and threshold configurations.

Add fields to the TC's struct that indicate if the TC can be bound to a
different pool and whether its threshold can change and enforce that.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
0636f4de79 mlxsw: spectrum_buffers: Add ability to veto pool's configuration
Subsequent patches are going to need to veto changes in certain pools'
size and / or threshold type (mode).

Add two fields to the pool's struct that indicate if either of these
attributes is allowed to change and enforce that.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
93d3668c02 mlxsw: spectrum_buffers: Use defines for pool indices
The pool indices are currently hard coded throughout the code, which
makes the code hard to follow and extend.

Overcome this by using defines for the pool indices.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
8f6862065d mlxsw: spectrum_buffers: Add extack messages for invalid configurations
Add extack messages to better communicate invalid configuration to the
user.

Example:

# devlink sb pool set pci/0000:01:00.0 pool 0 size 104857600 thtype dynamic
Error: mlxsw_spectrum: Exceeded shared buffer size.
devlink answers: Invalid argument

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
Ido Schimmel
f2ad1a522e net: devlink: Add extack to shared buffer operations
Add extack to shared buffer set operations, so that meaningful error
messages could be propagated to the user.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 22:09:32 -07:00
David S. Miller
7e5ebd0b78 Merge branch 'net-clean-up-needless-use-of-module-infrastructure'
Paul Gortmaker says:

====================
clean up needless use of module infrastructure

People can embed modular includes and modular exit functions into code
that never use any of it, and they won't get any errors or warnings.

Using modular infrastructure in non-modules might seem harmless, but some
of the downfalls this leads to are:

 (1) it is easy to accidentally write unused module_exit removal code
 (2) it can be misleading when reading the source, thinking a driver can
     be modular when the Makefile and/or Kconfig prohibit it
 (3) an unused include of the module.h header file will in turn
     include nearly everything else; adding a lot to CPP overhead.
 (4) it gets copied/replicated into other drivers and spreads quickly.

As a data point for #3 above, an empty C file that just includes the
module.h header generates over 750kB of CPP output.  Repeating the same
experiment with init.h and the result is less than 12kB; with export.h
it is only about 1/2kB; with both it still is less than 12kB.  One driver
in this series gets the module.h ---> init.h+export.h conversion.

Worse, are headers in include/linux that in turn include <linux/module.h>
as they can impact a whole fleet of drivers, or a whole subsystem, so
special care should be used in order to avoid that.  Such headers should
only include what they need to be stand-alone; they should not be trying
to anticipate the various header needs of their possible end users.

In this series, four include/linux headers have module.h removed from
them because they don't strictly need it.  Then three chunks of net
related code have modular infrastructure that isn't used, removed.

There are no runtime changes, so the biggest risk is a genuine consumer
of module.h content relying on implicitly getting it from one of the
include/linux instances removed here - thus resulting in a build fail.

With that in mind, allmodconfig build testing was done on x86-64, arm64,
x86-32, arm. powerpc, and mips on linux-next (and hence net-next).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:51:00 -07:00
Paul Gortmaker
15253b4a71 net: strparser: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

net/strparser/Kconfig:config STREAM_PARSER
net/strparser/Kconfig:  def_bool n

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.  For
clarity, we change the fcn name mod_init to dev_init at the same time.

We replace module.h with init.h and export.h ; the latter since this
file exports some syms.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:50:54 -07:00
Paul Gortmaker
3557b3fdee net: bpfilter: dont use module_init in non-modular code
The Kconfig controlling this code is:

bpfilter/Kconfig:menuconfig BPFILTER
bpfilter/Kconfig:   bool "BPF based packet filtering framework (BPFILTER)"

Since it isn't a module, we shouldn't use module_init().  Instead we
use device_initcall() - which is exactly what module_init() defaults
to for non-modular code/builds.

We don't remove <linux/module.h> from the includes since this file does
a request_module() and hence is a valid user of that header file, even
though it is not modular itself.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:50:54 -07:00
Paul Gortmaker
9628495d50 cgroup: net: remove left over MODULE_LICENSE tag
The Kconfig currently controlling compilation of this code is:

net/Kconfig:config CGROUP_NET_PRIO
net/Kconfig:    bool "Network priority cgroup"

...meaning that it currently is not being built as a module by anyone,
as module support was discontinued in 2014.

We delete the MODULE_LICENSE tag since all that information is already
contained at the top of the file in the comments.

We don't delete module.h from the includes since it was no longer there
to begin with.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Rosen, Rami" <rami.rosen@intel.com>
Cc: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: netdev@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:50:54 -07:00
Paul Gortmaker
a130f9b275 net: tc_act: drop include of module.h from tc_ife.h
Ideally, header files under include/linux shouldn't be adding
includes of other headers, in anticipation of their consumers,
but just the headers needed for the header itself to pass
parsing with CPP.

The module.h is particularly bad in this sense, as it itself does
include a whole bunch of other headers, due to the complexity of
module support.

Since tc_ife.h is not going into a module struct looking for
specific fields, we can just let it know that module is a struct,
just like about 60 other include/linux headers already do.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:50:53 -07:00
Paul Gortmaker
113e632866 net: fib: drop include of module.h from fib_notifier.h
Ideally, header files under include/linux shouldn't be adding
includes of other headers, in anticipation of their consumers,
but just the headers needed for the header itself to pass
parsing with CPP.

The module.h is particularly bad in this sense, as it itself does
include a whole bunch of other headers, due to the complexity of
module support.

Since fib_notifier.h is not going into a module struct looking for
specific fields, we can just let it know that module is a struct,
just like about 60 other include/linux headers already do.

Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:50:53 -07:00
Paul Gortmaker
c517796ea9 net: ife: drop include of module.h from net/ife.h
Ideally, header files under include/linux shouldn't be adding
includes of other headers, in anticipation of their consumers,
but just the headers needed for the header itself to pass
parsing with CPP.

The module.h is particularly bad in this sense, as it itself does
include a whole bunch of other headers, due to the complexity of
module support.

There doesn't appear to be anything in net/ife.h that is module
related, and build coverage doesn't appear to show any other
files/drivers relying implicitly on getting it from here.

So it appears we are simply free to just remove it in this case.

Cc: Yotam Gigi <yotam.gi@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:50:53 -07:00
Paul Gortmaker
a79eda3aaf net: psample: drop include of module.h from psample.h
Ideally, header files under include/linux shouldn't be adding
includes of other headers, in anticipation of their consumers,
but just the headers needed for the header itself to pass
parsing with CPP.

The module.h is particularly bad in this sense, as it itself does
include a whole bunch of other headers, due to the complexity of
module support.

There doesn't appear to be anything in psample.h that is module
related, and build coverage doesn't appear to show any other
files/drivers relying implicitly on getting it from here.

So it appears we are simply free to just remove it in this case.

Cc: Yotam Gigi <yotam.gi@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:50:53 -07:00
David Ahern
3c618c1dbb net: Rename net/nexthop.h net/rtnh.h
The header contains rtnh_ macros so rename the file accordingly.
Allows a later patch to use the nexthop.h name for the new
nexthop code.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:47:25 -07:00
David Ahern
7e5f4cdb28 ipv6: Remove fib6_info_nh_lwt
fib6_info_nh_lwt is no longer used; remove it.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:46:42 -07:00
Daniel T. Lee
0b13c9bb96 include/net/tcp.h: whitespace cleanup at tcp_v4_check
This patch makes trivial whitespace fix to the function
tcp_v4_check at include/net/tcp.h file.

It has stylistic issue, which is "space required after that ','"
and it can be confirmed with ./scripts/checkpatch.pl tool.

    ERROR: space required after that ',' (ctx:VxV)
    #29: FILE: include/net/tcp.h:1317:
    +	        return csum_tcpudp_magic(saddr,daddr,len,IPPROTO_TCP,base);
         	                              ^

Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:45:58 -07:00
David S. Miller
2843ba2ec7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2019-04-22

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) allow stack/queue helpers from more bpf program types, from Alban.

2) allow parallel verification of root bpf programs, from Alexei.

3) introduce bpf sysctl hook for trusted root cases, from Andrey.

4) recognize var/datasec in btf deduplication, from Andrii.

5) cpumap performance optimizations, from Jesper.

6) verifier prep for alu32 optimization, from Jiong.

7) libbpf xsk cleanup, from Magnus.

8) other various fixes and cleanups.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-22 21:35:55 -07:00
Daniel Borkmann
f79b464fd6 Merge branch 'bpf-verifier-lock'
Alexei Starovoitov says:

====================
Allow the bpf verifier to run in parallel for root.
====================

Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-04-23 01:51:49 +02:00
Alexei Starovoitov
45a73c17bf bpf: drop bpf_verifier_lock
Drop bpf_verifier_lock for root to avoid being DoS-ed by unprivileged.
The BPF verifier is now fully parallel.
All unpriv users are still serialized by bpf_verifier_lock to avoid
exhausting kernel memory by running N parallel verifications.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-04-23 01:50:43 +02:00
Alexei Starovoitov
7df737e991 bpf: remove global variables
Move three global variables protected by bpf_verifier_lock into
'struct bpf_verifier_env' to allow parallel verification.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-04-23 01:50:43 +02:00
Alexei Starovoitov
3b8802446d bpf: document the verifier limits
Document the verifier limits.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-04-23 00:39:12 +02:00
David Ahern
be659b8d3c ipv6: Restore RTF_ADDRCONF check in rt6_qualify_for_ecmp
The RTF_ADDRCONF flag filters out routes added by RA's in determining
which routes can be appended to an existing one to create a multipath
route. Restore the flag check and add a comment to document the RA piece.

Fixes: 4e54507ab1 ("ipv6: Simplify rt6_qualify_for_ecmp")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-21 19:44:16 -07:00
David Ahern
4e54507ab1 ipv6: Simplify rt6_qualify_for_ecmp
After commit c7a1ce397a ("ipv6: Change addrconf_f6i_alloc to use
ip6_route_info_create"), the gateway is no longer filled in for fib6_nh
structs in a prefix route. Accordingly, the RTF_ADDRCONF flag check can
be dropped from the 'rt6_qualify_for_ecmp'.

Further, RTF_DYNAMIC is only set in rt6_info instances, so it can be
removed from the check as well.

This reduces rt6_qualify_for_ecmp and the mlxsw version to just checking
if the nexthop has a gateway which is the real indication of whether
entries can be coalesced into a multipath route.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-21 10:39:52 -07:00
Fuqian Huang
fa8b9e8bea net: hippi:Fix misuse of %x in rrunner.c
The pointer should be printed with %p or %px rather than
cast to unsigned long type and printed with %08lx.
Change %08lx to %p to print the pointer.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-21 10:37:26 -07:00
Fuqian Huang
966cddef20 net: ax25: fix misuse of %x
Pointers should be printed with %p or %px rather than
cast to long type and printed with %8.8lx.
Change %8.8lx to %p to print the pointer.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-21 10:37:26 -07:00
Fuqian Huang
05453eadbf atm: iphase: fix misuse of %x
Pointers should be printed with %p or %px rather than
cast to long type and printed with %x.
Change %x to %p to print the pointers.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-21 10:37:26 -07:00
David S. Miller
f9e0d65b1f Merge branch 'mlxsw-Small-routing-improvements'
Ido Schimmel says:

====================
mlxsw: Small routing improvements

Patch #1 switches the driver to use a unique and stable ECMP/LAG seed.
This allows for consistent behavior across reboots and avoids hash
polarization at the same time.

Patch #2 relaxes the FIB rule validation in the driver to allow the
installation of rules that direct locally generated traffic (iif=lo).
This does not result in a discrepancy between both data paths because
packets received by the device would never match such rules.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-21 10:31:45 -07:00
Ido Schimmel
05414dd116 mlxsw: spectrum_router: Relax FIB rule validation
Currently, mlxsw does not support policy-based routing (PBR) and
therefore forbids the installation of non-default FIB rules except for
the l3mdev rule which is used for VRFs.

Relax the check to allow the installation of FIB rules that would never
match packets received by the device. Specifically, if the iif is that
of the loopback netdev. This is useful for users that need to redirect
locally generated packets based on FIB rules.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Tested-by: Alexander Petrovskiy <alexpe@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-21 10:31:45 -07:00
Ido Schimmel
fa73989f26 mlxsw: spectrum: Use a stable ECMP/LAG seed
In order to get a consistent behavior of traffic flows across reboots /
module unload, we need to use the same ECMP/LAG seed.

Calculate the seed by hashing the base MAC of the device. This results
in a seed that is both unique (to avoid polarization) and consistent.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-21 10:31:45 -07:00
Pablo Cascón
4ef6cbe80d nfp: add SR-IOV trusted VF support
By default VFs are not trusted. Add ndo_set_vf_trust support to toggle
a new per-VF bit. Coupled with FW with this capability allows a
trusted VF to change its MAC even after being administratively set by
the PF. Also populate the trusted field on ndo_get_vf_config. Add the
same ndo to the representors.

Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-19 21:00:31 -07:00
David S. Miller
5313794b79 Merge branch 'hns3-next'
Huazhong Tan says:

====================
net: hns3: add some DFX info for HNS3 driver

This patch-set adds some DFX information to HNS3 driver, for easily
debug some problems, and fixes some related bugs.

[patch 1/12 - 4/12] adds debug info about reset & interrupt events

[patch 5/12 - 7/12] adds debug info about TX time out & fixes
related bugs

[patch 8/12] adds support for setting netif message level

[patch 9/12 - 10/12] adds debugfs command to dump NCL & MAC info

[patch 11/12] adds VF's queue statistics info updating

[patch 12/12] adds a check for debugfs help function to decide which
commands are supportable
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-19 18:43:16 -07:00
Yufeng Mo
97afd47b36 net: hns3: add function type check for debugfs help information
PF supports all debugfs command, but VF only supports part of
debugfs command. So VF should not show unsupported help information.

This patch adds a check for PF and PF to show the supportable help
information.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-19 18:43:16 -07:00
liuzhongzhu
db01afeb66 net: hns3: add queue's statistics update to service task
This patch updates VF's TQP statistic info in the service task,
and adds a limitation to prevent update too frequently.

Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-19 18:43:16 -07:00
Weihang Li
a63457878b net: hns3: Add handling of MAC tunnel interruption
MAC tnl interruptions are different from other type of RAS and MSI-X
errors, because some bits, such as OVF/LR/RF will occur during link up
and down.

The drivers should clear status of all MAC tnl interruption bits but
shouldn't print any message that would mislead the users.

In case that link down and re-up in a short time because of some reasons,
we record when they occurred, and users can query them by debugfs.

Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-19 18:43:16 -07:00