GitHub/moto-9609/android_kernel_motorola_exynos9610.git
7 years agonet-next/hinic: Add port management commands
Aviad Krawczyk [Mon, 21 Aug 2017 15:55:54 +0000 (23:55 +0800)]
net-next/hinic: Add port management commands

Add the port management commands that are sent as management messages.
The port management commands are used for netdev operations.

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet-next/hinic: Add aeqs
Aviad Krawczyk [Mon, 21 Aug 2017 15:55:53 +0000 (23:55 +0800)]
net-next/hinic: Add aeqs

Handle aeq elements that are accumulated on the aeq by calling the
registered handler for the specific event.

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet-next/hinic: Add api cmd commands
Aviad Krawczyk [Mon, 21 Aug 2017 15:55:52 +0000 (23:55 +0800)]
net-next/hinic: Add api cmd commands

Add the api cmd commands for sending management messages to the nic.

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet-next/hinic: Add management messages
Aviad Krawczyk [Mon, 21 Aug 2017 15:55:51 +0000 (23:55 +0800)]
net-next/hinic: Add management messages

Add the management messages for sending to api cmd and the asynchronous
event handler for the completion of the messages.

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet-next/hinic: Initialize api cmd hw
Aviad Krawczyk [Mon, 21 Aug 2017 15:55:50 +0000 (23:55 +0800)]
net-next/hinic: Initialize api cmd hw

Update the hardware about api cmd resources and initialize it.

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet-next/hinic: Initialize api cmd resources
Aviad Krawczyk [Mon, 21 Aug 2017 15:55:49 +0000 (23:55 +0800)]
net-next/hinic: Initialize api cmd resources

Initialize api cmd resources as part of management initialization.

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet-next/hinic: Initialize hw device components
Aviad Krawczyk [Mon, 21 Aug 2017 15:55:48 +0000 (23:55 +0800)]
net-next/hinic: Initialize hw device components

Initialize hw device by calling the initialization functions of aeqs and
management channel.

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet-next/hinic: Initialize hw interface
Aviad Krawczyk [Mon, 21 Aug 2017 15:55:47 +0000 (23:55 +0800)]
net-next/hinic: Initialize hw interface

Initialize hw interface as part of the nic initialization for accessing hw.

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ethernet: stmmac: dwmac-rk: Add rv1108 gmac support
David Wu [Mon, 21 Aug 2017 10:12:55 +0000 (18:12 +0800)]
net: ethernet: stmmac: dwmac-rk: Add rv1108 gmac support

It only supports rmii interface. Add constants and callback functions
for the dwmac on rv1108 socs. As can be seen, the base structure is
the same, only registers and the bits in them moved slightly.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoethernet: xircom: small clean up in setup_xirc2ps_cs()
Dan Carpenter [Mon, 21 Aug 2017 09:47:30 +0000 (12:47 +0300)]
ethernet: xircom: small clean up in setup_xirc2ps_cs()

The get_options() function takes the whole ARRAY_SIZE().  It doesn't
matter here because we don't use more than 7 elements.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoarm: eBPF JIT compiler
Shubham Bansal [Tue, 22 Aug 2017 06:32:33 +0000 (12:02 +0530)]
arm: eBPF JIT compiler

The JIT compiler emits ARM 32 bit instructions. Currently, It supports
eBPF only. Classic BPF is supported because of the conversion by BPF core.

This patch is essentially changing the current implementation of JIT compiler
of Berkeley Packet Filter from classic to internal with almost all
instructions from eBPF ISA supported except the following
BPF_ALU64 | BPF_DIV | BPF_K
BPF_ALU64 | BPF_DIV | BPF_X
BPF_ALU64 | BPF_MOD | BPF_K
BPF_ALU64 | BPF_MOD | BPF_X
BPF_STX | BPF_XADD | BPF_W
BPF_STX | BPF_XADD | BPF_DW

Implementation is using scratch space to emulate 64 bit eBPF ISA on 32 bit
ARM because of deficiency of general purpose registers on ARM. Currently,
only LITTLE ENDIAN machines are supported in this eBPF JIT Compiler.

Tested on ARMv7 with QEMU by me (Shubham Bansal).

Testing results on ARMv7:

1) test_bpf: Summary: 341 PASSED, 0 FAILED, [312/333 JIT'ed]
2) test_tag: OK (40945 tests)
3) test_progs: Summary: 30 PASSED, 0 FAILED
4) test_lpm: OK
5) test_lru_map: OK

Above tests are all done with following flags enabled discreatly.

1) bpf_jit_enable=1
a) CONFIG_FRAME_POINTER enabled
b) CONFIG_FRAME_POINTER disabled
2) bpf_jit_enable=1 and bpf_jit_harden=2
a) CONFIG_FRAME_POINTER enabled
b) CONFIG_FRAME_POINTER disabled

See Documentation/networking/filter.txt for more information.

Signed-off-by: Shubham Bansal <illusionist.neo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Tue, 22 Aug 2017 00:06:42 +0000 (17:06 -0700)]
Merge git://git./linux/kernel/git/davem/net

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Mon, 21 Aug 2017 21:07:48 +0000 (14:07 -0700)]
Merge git://git./linux/kernel/git/davem/sparc

Pull sparc fixes from David Miller:
 "Just a couple small fixes, two of which have to do with gcc-7:

   1) Don't clobber kernel fixed registers in __multi4 libgcc helper.

   2) Fix a new uninitialized variable warning on sparc32 with gcc-7,
      from Thomas Petazzoni.

   3) Adjust pmd_t initializer on sparc32 to make gcc happy.

   4) If ATU isn't available, don't bark in the logs. From Tushar Dave"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: kernel/pcic: silence gcc 7.x warning in pcibios_fixup_bus()
  sparc64: remove unnecessary log message
  sparc64: Don't clibber fixed registers in __multi4.
  mm: add pmd_t initializer __pmd() to work around a GCC bug.

7 years agosparc: kernel/pcic: silence gcc 7.x warning in pcibios_fixup_bus()
Thomas Petazzoni [Sun, 13 Aug 2017 21:14:58 +0000 (23:14 +0200)]
sparc: kernel/pcic: silence gcc 7.x warning in pcibios_fixup_bus()

When building the kernel for Sparc using gcc 7.x, the build fails
with:

arch/sparc/kernel/pcic.c: In function ‘pcibios_fixup_bus’:
arch/sparc/kernel/pcic.c:647:8: error: ‘cmd’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
    cmd |= PCI_COMMAND_IO;
        ^~

The simplified code looks like this:

unsigned int cmd;
[...]
pcic_read_config(dev->bus, dev->devfn, PCI_COMMAND, 2, &cmd);
[...]
cmd |= PCI_COMMAND_IO;

I.e, the code assumes that pcic_read_config() will always initialize
cmd. But it's not the case. Looking at pcic_read_config(), if
bus->number is != 0 or if the size is not one of 1, 2 or 4, *val will
not be initialized.

As a simple fix, we initialize cmd to zero at the beginning of
pcibios_fixup_bus.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: sched: Add the invalid handle check in qdisc_class_find
Gao Feng [Fri, 18 Aug 2017 07:23:24 +0000 (15:23 +0800)]
net: sched: Add the invalid handle check in qdisc_class_find

Add the invalid handle "0" check to avoid unnecessary search, because
the qdisc uses the skb->priority as the handle value to look up, and
it is "0" usually.

Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotipc: don't reset stale broadcast send link
Jon Paul Maloy [Mon, 21 Aug 2017 15:59:30 +0000 (17:59 +0200)]
tipc: don't reset stale broadcast send link

When the broadcast send link after 100 attempts has failed to
transfer a packet to all peers, we consider it stale, and reset
it. Thereafter it needs to re-synchronize with the peers, something
currently done by just resetting and re-establishing all links to
all peers. This has turned out to be overkill, with potentially
unwanted consequences for the remaining cluster.

A closer analysis reveals that this can be done much simpler. When
this kind of failure happens, for reasons that may lie outside the
TIPC protocol, it is typically only one peer which is failing to
receive and acknowledge packets. It is hence sufficient to identify
and reset the links only to that peer to resolve the situation, without
having to reset the broadcast link at all. This solution entails a much
lower risk of negative consequences for the own node as well as for
the overall cluster.

We implement this change in this commit.

Reviewed-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
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>
7 years agoMerge tag 'arc-4.13-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupt...
Linus Torvalds [Mon, 21 Aug 2017 20:30:36 +0000 (13:30 -0700)]
Merge tag 'arc-4.13-rc7-fixes' of git://git./linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:

 - PAE40 related updates

 - SLC errata for region ops

 - intc line masking by default

* tag 'arc-4.13-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  arc: Mask individual IRQ lines during core INTC init
  ARCv2: PAE40: set MSB even if !CONFIG_ARC_HAS_PAE40 but PAE exists in SoC
  ARCv2: PAE40: Explicitly set MSB counterpart of SLC region ops addresses
  ARC: dma: implement dma_unmap_page and sg variant
  ARCv2: SLC: Make sure busy bit is set properly for region ops
  ARC: [plat-sim] Include this platform unconditionally
  ARC: [plat-axs10x]: prepare dts files for enabling PAE40 on axs103
  ARC: defconfig: Cleanup from old Kconfig options

7 years agoMerge tag 'rtc-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni...
Linus Torvalds [Mon, 21 Aug 2017 20:27:51 +0000 (13:27 -0700)]
Merge tag 'rtc-4.13-fixes' of git://git./linux/kernel/git/abelloni/linux

Pull RTC fix from Alexandre Belloni:
 "Fix regmap configuration for ds1307"

* tag 'rtc-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: ds1307: fix regmap config

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Mon, 21 Aug 2017 20:16:27 +0000 (13:16 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Fix IGMP handling wrt VRF, from David Ahern.

 2) Fix timer access to freed object in dccp, from Eric Dumazet.

 3) Use kmalloc_array() in ptr_ring to avoid overflow cases which are
    triggerable by userspace. Also from Eric Dumazet.

 4) Fix infinite loop in unmapping cleanup of nfp driver, from Colin Ian
    King.

 5) Correct datagram peek handling of empty SKBs, from Matthew Dawson.

 6) Fix use after free in TIPC, from Eric Dumazet.

 7) When replacing a route in ipv6 we need to reset the round robin
    pointer, from Wei Wang.

 8) Fix bug in pci_find_pcie_root_port() which was unearthed by the
    relaxed ordering changes, from Thierry Redding. I made sure to get
    an explicit ACK from Bjorn this time around :-)

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
  ipv6: repair fib6 tree in failure case
  net_sched: fix order of queue length updates in qdisc_replace()
  tools lib bpf: improve warning
  switchdev: documentation: minor typo fixes
  bpf, doc: also add s390x as arch to sysctl description
  net: sched: fix NULL pointer dereference when action calls some targets
  rxrpc: Fix oops when discarding a preallocated service call
  irda: do not leak initialized list.dev to userspace
  net/mlx4_core: Enable 4K UAR if SRIOV module parameter is not enabled
  PCI: Allow PCI express root ports to find themselves
  tcp: when rearming RTO, if RTO time is in past then fire RTO ASAP
  net: check and errout if res->fi is NULL when RTM_F_FIB_MATCH is set
  ipv6: reset fn->rr_ptr when replacing route
  sctp: fully initialize the IPv6 address in sctp_v6_to_addr()
  tipc: fix use-after-free
  tun: handle register_netdevice() failures properly
  datagram: When peeking datagrams with offset < 0 don't skip empty skbs
  bpf, doc: improve sysctl knob description
  netxen: fix incorrect loop counter decrement
  nfp: fix infinite loop on umapping cleanup
  ...

7 years agopids: make task_tgid_nr_ns() safe
Oleg Nesterov [Mon, 21 Aug 2017 15:35:02 +0000 (17:35 +0200)]
pids: make task_tgid_nr_ns() safe

This was reported many times, and this was even mentioned in commit
52ee2dfdd4f5 ("pids: refactor vnr/nr_ns helpers to make them safe") but
somehow nobody bothered to fix the obvious problem: task_tgid_nr_ns() is
not safe because task->group_leader points to nowhere after the exiting
task passes exit_notify(), rcu_read_lock() can not help.

We really need to change __unhash_process() to nullify group_leader,
parent, and real_parent, but this needs some cleanups.  Until then we
can turn task_tgid_nr_ns() into another user of __task_pid_nr_ns() and
fix the problem.

Reported-by: Troy Kensinger <tkensinger@google.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agonet: check type when freeing metadata dst
David Lamparter [Fri, 18 Aug 2017 12:31:35 +0000 (14:31 +0200)]
net: check type when freeing metadata dst

Commit 3fcece12bc1b ("net: store port/representator id in metadata_dst")
added a new type field to metadata_dst, but metadata_dst_free() wasn't
updated to check it before freeing the METADATA_IP_TUNNEL specific dst
cache entry.

This is not currently causing problems since it's far enough back in the
struct to be zeroed for the only other type currently in existance
(METADATA_HW_PORT_MUX), but nevertheless it's not correct.

Fixes: 3fcece12bc1b ("net: store port/representator id in metadata_dst")
Signed-off-by: David Lamparter <equinox@diac24.net>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Sridhar Samudrala <sridhar.samudrala@intel.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ipv6: put host and anycast routes on device with address
David Ahern [Thu, 17 Aug 2017 19:17:20 +0000 (12:17 -0700)]
net: ipv6: put host and anycast routes on device with address

One nagging difference between ipv4 and ipv6 is host routes for ipv6
addresses are installed using the loopback device or VRF / L3 Master
device. e.g.,

    2001:db8:1::/120 dev veth0 proto kernel metric 256 pref medium
    local 2001:db8:1::1 dev lo table local proto kernel metric 0 pref medium

Using the loopback device is convenient -- necessary for local tx, but
has some nasty side effects, most notably setting the 'lo' device down
causes all host routes for all local IPv6 address to be removed from the
FIB and completely breaks IPv6 networking across all interfaces.

This patch puts FIB entries for IPv6 routes against the device. This
simplifies the routes in the FIB, for example by making dst->dev and
rt6i_idev->dev the same (a future patch can look at removing the device
reference taken for rt6i_idev for FIB entries).

When copies are made on FIB lookups, the cloned route has dst->dev
set to loopback (or the L3 master device). This is needed for the
local Tx of packets to local addresses.

With fib entries allocated against the real network device, the addrconf
code that reinserts host routes on admin up of 'lo' is no longer needed.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodsa: remove unused net_device arg from handlers
Florian Westphal [Thu, 17 Aug 2017 14:47:00 +0000 (16:47 +0200)]
dsa: remove unused net_device arg from handlers

compile tested only, but saw no warnings/errors with
allmodconfig build.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'bpf-mips-jit-improvements'
David S. Miller [Mon, 21 Aug 2017 17:31:34 +0000 (10:31 -0700)]
Merge branch 'bpf-mips-jit-improvements'

David Daney says:

====================
MIPS,bpf: Improvements for MIPS eBPF JIT

Here are several improvements and bug fixes for the MIPS eBPF JIT.

The main change is the addition of support for JLT, JLE, JSLT and JSLE
ops, that were recently added.

Also fix WARN output when used with preemptable kernel, and a small
cleanup/optimization in the use of BPF_OP(insn->code).

I suggest that the whole thing go via the BPF/net-next path as there
are dependencies on code that is not yet merged to Linus' tree.

Still pending are changes to reduce stack usage when the verifier can
determine the maximum stack size.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMIPS,bpf: Cache value of BPF_OP(insn->code) in eBPF JIT.
David Daney [Fri, 18 Aug 2017 23:40:33 +0000 (16:40 -0700)]
MIPS,bpf: Cache value of BPF_OP(insn->code) in eBPF JIT.

The code looks a little cleaner if we replace BPF_OP(insn->code) with
the local variable bpf_op.  Caching the value this way also saves 300
bytes (about 1%) in the code size of the JIT.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMIPS, bpf: Implement JLT, JLE, JSLT and JSLE ops in the eBPF JIT.
David Daney [Fri, 18 Aug 2017 23:40:32 +0000 (16:40 -0700)]
MIPS, bpf: Implement JLT, JLE, JSLT and JSLE ops in the eBPF JIT.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMIPS,bpf: Fix using smp_processor_id() in preemptible splat.
David Daney [Fri, 18 Aug 2017 23:40:31 +0000 (16:40 -0700)]
MIPS,bpf: Fix using smp_processor_id() in preemptible splat.

If the kernel is configured with preemption enabled we were getting
warning stack traces for use of current_cpu_type().

Fix by moving the test between preempt_disable()/preempt_enable() and
caching the results of the CPU type tests for use during code
generation.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoqlogic: make device_attribute const
Bhumika Goyal [Mon, 21 Aug 2017 11:43:10 +0000 (17:13 +0530)]
qlogic: make device_attribute const

Make these const as they are only passed as an argument to the
function device_create_file and device_remove_file and the corresponding
arguments are of type const.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec...
David S. Miller [Mon, 21 Aug 2017 16:29:47 +0000 (09:29 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/klassert/ipsec-next

Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2017-08-21

1) Support RX checksum with IPsec crypto offload for esp4/esp6.
   From Ilan Tayari.

2) Fixup IPv6 checksums when doing IPsec crypto offload.
   From Yossi Kuperman.

3) Auto load the xfrom offload modules if a user installs
   a SA that requests IPsec offload. From Ilan Tayari.

4) Clear RX offload informations in xfrm_input to not
   confuse the TX path with stale offload informations.
   From Ilan Tayari.

5) Allow IPsec GSO for local sockets if the crypto operation
   will be offloaded.

6) Support setting of an output mark to the xfrm_state.
   This mark can be used to to do the tunnel route lookup.
   From Lorenzo Colitti.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agortc: ds1307: fix regmap config
Heiner Kallweit [Tue, 25 Jul 2017 16:44:04 +0000 (18:44 +0200)]
rtc: ds1307: fix regmap config

Current max_register setting breaks reading nvram on certain chips and
also reading the standard registers on RX8130 where register map starts
at 0x10.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Fixes: 11e5890b5342 "rtc: ds1307: convert driver to regmap"
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
7 years agoliquidio: fix use of pf in pass-through mode in a virtual machine
Rick Farrington [Sat, 19 Aug 2017 01:21:49 +0000 (18:21 -0700)]
liquidio: fix use of pf in pass-through mode in a virtual machine

Fix problem when PF is used in pass-through mode in a VM (w/embedded f/w).

If host error reading PF num from CN23XX_PCIE_SRIOV_FDL reg,
try to retrieve PF num from SLI_PKT(0)_INPUT_CONTROL (initialized by f/w).

Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoipv6: repair fib6 tree in failure case
Wei Wang [Sat, 19 Aug 2017 00:14:49 +0000 (17:14 -0700)]
ipv6: repair fib6 tree in failure case

In fib6_add(), it is possible that fib6_add_1() picks an intermediate
node and sets the node's fn->leaf to NULL in order to add this new
route. However, if fib6_add_rt2node() fails to add the new
route for some reason, fn->leaf will be left as NULL and could
potentially cause crash when fn->leaf is accessed in fib6_locate().
This patch makes sure fib6_repair_tree() is called to properly repair
fn->leaf in the above failure case.

Here is the syzkaller reported general protection fault in fib6_locate:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Modules linked in:
CPU: 0 PID: 40937 Comm: syz-executor3 Not tainted
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d7d64100 ti: ffff8801d01a0000 task.ti: ffff8801d01a0000
RIP: 0010:[<ffffffff82a3e0e1>]  [<ffffffff82a3e0e1>] __ipv6_prefix_equal64_half include/net/ipv6.h:475 [inline]
RIP: 0010:[<ffffffff82a3e0e1>]  [<ffffffff82a3e0e1>] ipv6_prefix_equal include/net/ipv6.h:492 [inline]
RIP: 0010:[<ffffffff82a3e0e1>]  [<ffffffff82a3e0e1>] fib6_locate_1 net/ipv6/ip6_fib.c:1210 [inline]
RIP: 0010:[<ffffffff82a3e0e1>]  [<ffffffff82a3e0e1>] fib6_locate+0x281/0x3c0 net/ipv6/ip6_fib.c:1233
RSP: 0018:ffff8801d01a36a8  EFLAGS: 00010202
RAX: 0000000000000020 RBX: ffff8801bc790e00 RCX: ffffc90002983000
RDX: 0000000000001219 RSI: ffff8801d01a37a0 RDI: 0000000000000100
RBP: ffff8801d01a36f0 R08: 00000000000000ff R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8801d01a37a0 R15: 0000000000000000
FS:  00007f6afd68c700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004c6340 CR3: 00000000ba41f000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d01a37a8 ffff8801d01a3780 ffffed003a0346f5 0000000c82a23ea0
 ffff8800b7bd7700 ffff8801d01a3780 ffff8800b6a1c940 ffffffff82a23ea0
 ffff8801d01a3920 ffff8801d01a3748 ffffffff82a223d6 ffff8801d7d64988
Call Trace:
 [<ffffffff82a223d6>] ip6_route_del+0x106/0x570 net/ipv6/route.c:2109
 [<ffffffff82a23f9d>] inet6_rtm_delroute+0xfd/0x100 net/ipv6/route.c:3075
 [<ffffffff82621359>] rtnetlink_rcv_msg+0x549/0x7a0 net/core/rtnetlink.c:3450
 [<ffffffff8274c1d1>] netlink_rcv_skb+0x141/0x370 net/netlink/af_netlink.c:2281
 [<ffffffff82613ddf>] rtnetlink_rcv+0x2f/0x40 net/core/rtnetlink.c:3456
 [<ffffffff8274ad38>] netlink_unicast_kernel net/netlink/af_netlink.c:1206 [inline]
 [<ffffffff8274ad38>] netlink_unicast+0x518/0x750 net/netlink/af_netlink.c:1232
 [<ffffffff8274b83e>] netlink_sendmsg+0x8ce/0xc30 net/netlink/af_netlink.c:1778
 [<ffffffff82564aff>] sock_sendmsg_nosec net/socket.c:609 [inline]
 [<ffffffff82564aff>] sock_sendmsg+0xcf/0x110 net/socket.c:619
 [<ffffffff82564d62>] sock_write_iter+0x222/0x3a0 net/socket.c:834
 [<ffffffff8178523d>] new_sync_write+0x1dd/0x2b0 fs/read_write.c:478
 [<ffffffff817853f4>] __vfs_write+0xe4/0x110 fs/read_write.c:491
 [<ffffffff81786c38>] vfs_write+0x178/0x4b0 fs/read_write.c:538
 [<ffffffff817892a9>] SYSC_write fs/read_write.c:585 [inline]
 [<ffffffff817892a9>] SyS_write+0xd9/0x1b0 fs/read_write.c:577
 [<ffffffff82c71e32>] entry_SYSCALL_64_fastpath+0x12/0x17

Note: there is no "Fixes" tag as this seems to be a bug introduced
very early.

Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: mv88e6xxx: make irq_chip const
Bhumika Goyal [Sat, 19 Aug 2017 10:55:52 +0000 (16:25 +0530)]
net: dsa: mv88e6xxx: make irq_chip const

Make this const as it is only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet_sched: fix order of queue length updates in qdisc_replace()
Konstantin Khlebnikov [Sat, 19 Aug 2017 12:37:07 +0000 (15:37 +0300)]
net_sched: fix order of queue length updates in qdisc_replace()

This important to call qdisc_tree_reduce_backlog() after changing queue
length. Parent qdisc should deactivate class in ->qlen_notify() called from
qdisc_tree_reduce_backlog() but this happens only if qdisc->q.qlen in zero.

Missed class deactivations leads to crashes/warnings at picking packets
from empty qdisc and corrupting state at reactivating this class in future.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: 86a7996cc8a0 ("net_sched: introduce qdisc_replace() helper")
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ibm: emac: Fix some error handling path in 'emac_probe()'
Christophe Jaillet [Sun, 20 Aug 2017 04:35:00 +0000 (06:35 +0200)]
net: ibm: emac: Fix some error handling path in 'emac_probe()'

If 'irq_of_parse_and_map()' or 'of_address_to_resource()' fail, 'err' is
known to be 0 at this point.
So return -ENODEV instead in the first case and use 'of_iomap()' instead of
the equivalent 'of_address_to_resource()/ioremap()' combinaison in the 2nd
case.

Doing so, the 'rsrc_regs' field of the 'emac_instance struct' becomes
redundant and is removed.

While at it, turn a 'err != 0' test into an equivalent 'err' to be more
consistent.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4/cxgbvf: Handle 32-bit fw port capabilities
Ganesh Goudar [Sun, 20 Aug 2017 08:45:51 +0000 (14:15 +0530)]
cxgb4/cxgbvf: Handle 32-bit fw port capabilities

Implement new 32-bit Firmware Port Capabilities in order to
handle new speeds which couldn't be represented in the old 16-bit
Firmware Port Capabilities values.

Based on the original work of Casey Leedom <leedom@chelsio.com>

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotools lib bpf: improve warning
Eric Leblond [Sun, 20 Aug 2017 19:48:14 +0000 (21:48 +0200)]
tools lib bpf: improve warning

Signed-off-by: Eric Leblond <eric@regit.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoswitchdev: documentation: minor typo fixes
Chris Packham [Sun, 20 Aug 2017 20:52:54 +0000 (08:52 +1200)]
switchdev: documentation: minor typo fixes

Two typos in switchdev.txt

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: fix double free from dev_map_notification()
Daniel Borkmann [Sun, 20 Aug 2017 23:48:12 +0000 (01:48 +0200)]
bpf: fix double free from dev_map_notification()

In the current code, dev_map_free() can still race with dev_map_notification().
In dev_map_free(), we remove dtab from the list of dtabs after we purged
all entries from it. However, we don't do xchg() with NULL or the like,
so the entry at that point is still pointing to the device. If a unregister
notification comes in at the same time, we therefore risk a double-free,
since the pointer is still present in the map, and then pushed again to
__dev_map_entry_free().

All this is completely unnecessary. Just remove the dtab from the list
right before the synchronize_rcu(), so all outstanding readers from the
notifier list have finished by then, thus we don't need to deal with this
corner case anymore and also wouldn't need to nullify dev entires. This is
fine because we iterate over the map releasing all entries and therefore
dev references anyway.

Fixes: 4cc7b9544b9a ("bpf: devmap fix mutex in rcu critical section")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf, doc: also add s390x as arch to sysctl description
Daniel Borkmann [Sun, 20 Aug 2017 22:26:03 +0000 (00:26 +0200)]
bpf, doc: also add s390x as arch to sysctl description

Looks like this was accidentally missed, so still add s390x
as supported eBPF JIT arch to bpf_jit_enable.

Fixes: 014cd0a368dc ("bpf: Update sysctl documentation to list all supported architectures")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'mlx5-updates-2017-08-17-V2' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Sun, 20 Aug 2017 22:19:31 +0000 (15:19 -0700)]
Merge tag 'mlx5-updates-2017-08-17-V2' of git://git./linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2017-08-17

Some updates for mlx5 ethernet and IPoIB device driver.

Eran added the support for manage physical link state from netdevice upon
interface open/close requests.

Feras fixed the driver name showed in ethtool for IPoIB interfaces.
Shalom Added the support for IPoIB netdevice ethtool get link settings.

Gal and Eran exposed new diagnostic counters for outbound PCIe stalls and overflow
and RX buffer fullness statistics.

Code cleanups from Or Gerlitz.
Variable types cleanup from Gal.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoLinux 4.13-rc6
Linus Torvalds [Sun, 20 Aug 2017 21:13:52 +0000 (14:13 -0700)]
Linux 4.13-rc6

7 years agoSanitize 'move_pages()' permission checks
Linus Torvalds [Sun, 20 Aug 2017 20:26:27 +0000 (13:26 -0700)]
Sanitize 'move_pages()' permission checks

The 'move_paghes()' system call was introduced long long ago with the
same permission checks as for sending a signal (except using
CAP_SYS_NICE instead of CAP_SYS_KILL for the overriding capability).

That turns out to not be a great choice - while the system call really
only moves physical page allocations around (and you need other
capabilities to do a lot of it), you can check the return value to map
out some the virtual address choices and defeat ASLR of a binary that
still shares your uid.

So change the access checks to the more common 'ptrace_may_access()'
model instead.

This tightens the access checks for the uid, and also effectively
changes the CAP_SYS_NICE check to CAP_SYS_PTRACE, but it's unlikely that
anybody really _uses_ this legacy system call any more (we hav ebetter
NUMA placement models these days), so I expect nobody to notice.

Famous last words.

Reported-by: Otto Ebeling <otto.ebeling@iki.fi>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 20 Aug 2017 16:36:52 +0000 (09:36 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "Another pile of small fixes and updates for x86:

   - Plug a hole in the SMAP implementation which misses to clear AC on
     NMI entry

   - Fix the norandmaps/ADDR_NO_RANDOMIZE logic so the command line
     parameter works correctly again

   - Use the proper accessor in the startup64 code for next_early_pgt to
     prevent accessing of invalid addresses and faulting in the early
     boot code.

   - Prevent CPU hotplug lock recursion in the MTRR code

   - Unbreak CPU0 hotplugging

   - Rename overly long CPUID bits which got introduced in this cycle

   - Two commits which mark data 'const' and restrict the scope of data
     and functions to file scope by making them 'static'"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Constify attribute_group structures
  x86/boot/64/clang: Use fixup_pointer() to access 'next_early_pgt'
  x86/elf: Remove the unnecessary ADDR_NO_RANDOMIZE checks
  x86: Fix norandmaps/ADDR_NO_RANDOMIZE
  x86/mtrr: Prevent CPU hotplug lock recursion
  x86: Mark various structures and functions as 'static'
  x86/cpufeature, kvm/svm: Rename (shorten) the new "virtualized VMSAVE/VMLOAD" CPUID flag
  x86/smpboot: Unbreak CPU0 hotplug
  x86/asm/64: Clear AC on NMI entries

7 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 20 Aug 2017 16:34:24 +0000 (09:34 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "A few small fixes for timer drivers:

   - Prevent infinite recursion in the arm architected timer driver with
     ftrace

   - Propagate error codes to the caller in case of failure in EM STI
     driver

   - Adjust a bogus loop iteration in the arm architected timer driver

   - Add a missing Kconfig dependency to the pistachio clocksource to
     prevent build failures

   - Correctly check for IS_ERR() instead of NULL in the shared timer-of
     code"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/arm_arch_timer: Avoid infinite recursion when ftrace is enabled
  clocksource/drivers/Kconfig: Fix CLKSRC_PISTACHIO dependencies
  clocksource/drivers/timer-of: Checking for IS_ERR() instead of NULL
  clocksource/drivers/em_sti: Fix error return codes in em_sti_probe()
  clocksource/drivers/arm_arch_timer: Fix mem frame loop initialization

7 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 20 Aug 2017 16:20:57 +0000 (09:20 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:
 "Two fixes for the perf subsystem:

   - Fix an inconsistency of RDPMC mm struct tagging across exec() which
     causes RDPMC to fault.

   - Correct the timestamp mechanics across IOC_DISABLE/ENABLE which
     causes incorrect timestamps and total time calculations"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix time on IOC_ENABLE
  perf/x86: Fix RDPMC vs. mm_struct tracking

7 years agoMerge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 20 Aug 2017 16:07:56 +0000 (09:07 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A pile of smallish changes all over the place:

   - Add a missing ISB in the GIC V1 driver

   - Remove an ACPI version check in the GIC V3 ITS driver

   - Add the missing irq_pm_shutdown function for BRCMSTB-L2 to avoid
     spurious wakeups

   - Remove the artifical limitation of ITS instances to the number of
     NUMA nodes which prevents utilizing the ITS hardware correctly

   - Prevent a infinite parsing loop in the GIC-V3 ITS/MSI code

   - Honour the force affinity argument in the GIC-V3 driver which is
     required to make perf work correctly

   - Correctly report allocation failures in GIC-V2/V3 to avoid using
     half allocated and initialized interrupts.

   - Fixup checks against nr_cpu_ids in the generic IPI code"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/ipi: Fixup checks against nr_cpu_ids
  genirq: Restore trigger settings in irq_modify_status()
  MAINTAINERS: Remove Jason Cooper's irqchip git tree
  irqchip/gic-v3-its-platform-msi: Fix msi-parent parsing loop
  irqchip/gic-v3-its: Allow GIC ITS number more than MAX_NUMNODES
  irqchip: brcmstb-l2: Define an irq_pm_shutdown function
  irqchip/gic: Ensure we have an ISB between ack and ->handle_irq
  irqchip/gic-v3-its: Remove ACPICA version check for ACPI NUMA
  irqchip/gic-v3: Honor forced affinity setting
  irqchip/gic-v3: Report failures in gic_irq_domain_alloc
  irqchip/gic-v2: Report failures in gic_irq_domain_alloc
  irqchip/atmel-aic: Remove root argument from ->fixup() prototype
  irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
  irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()

7 years agoMerge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 20 Aug 2017 15:54:30 +0000 (08:54 -0700)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull watchdog fix from Thomas Gleixner:
 "A fix for the hardlockup watchdog to prevent false positives with
  extreme Turbo-Modes which make the perf/NMI watchdog fire faster than
  the hrtimer which is used to verify.

  Slightly larger than the minimal fix, which just would increase the
  hrtimer frequency, but comes with extra overhead of more watchdog
  timer interrupts and thread wakeups for all users.

  With this change we restrict the overhead to the extreme Turbo-Mode
  systems"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kernel/watchdog: Prevent false positives with turbo modes

7 years agonet/mlx5e: Use size_t to store byte offset in statistics descriptors
Gal Pressman [Sun, 2 Jul 2017 15:26:21 +0000 (18:26 +0300)]
net/mlx5e: Use size_t to store byte offset in statistics descriptors

The byte offset of counter descriptors should be stored in size_t variable
instead of an integer.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Use kernel types instead of uint*_t in ethtool callbacks
Gal Pressman [Wed, 28 Jun 2017 11:03:36 +0000 (14:03 +0300)]
net/mlx5e: Use kernel types instead of uint*_t in ethtool callbacks

Fix checkpatch errors:
CHECK:PREFER_KERNEL_TYPES: Prefer kernel type 'u32' over 'uint32_t'

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Place constants on the right side of comparisons
Or Gerlitz [Tue, 11 Jul 2017 13:10:50 +0000 (16:10 +0300)]
net/mlx5e: Place constants on the right side of comparisons

To fix these checkpatch complaints:

WARNING: Comparisons should place the constant on the right side of the test

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Avoid using multiple blank lines
Or Gerlitz [Tue, 11 Jul 2017 12:40:30 +0000 (15:40 +0300)]
net/mlx5e: Avoid using multiple blank lines

To fix these checkpatch complaints:

CHECK: Please don't use multiple blank lines

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Properly indent within conditional statements
Or Gerlitz [Tue, 11 Jul 2017 12:36:11 +0000 (15:36 +0300)]
net/mlx5e: Properly indent within conditional statements

To fix these checkpatch complaints:

WARNING: suspect code indent for conditional statements (8, 24)
+       if (eth_proto & (MLX5E_PROT_MASK(MLX5E_10GBASE_SR)
[...]
+                       return PORT_FIBRE;

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5: Add a blank line after declarations
Or Gerlitz [Tue, 11 Jul 2017 12:53:29 +0000 (15:53 +0300)]
net/mlx5: Add a blank line after declarations

To fix these checkpatch complaints:

WARNING: Missing a blank line after declarations

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5: Avoid blank lines after/before open/close brace
Or Gerlitz [Tue, 11 Jul 2017 12:44:04 +0000 (15:44 +0300)]
net/mlx5: Avoid blank lines after/before open/close brace

To fix these checkpatch complaints:

CHECK: Blank lines aren't necessary after an open brace '{'
CHECK: Blank lines aren't necessary before a close brace '}'

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Add outbound PCI buffer overflow counter
Eran Ben Elisha [Thu, 11 May 2017 23:47:02 +0000 (02:47 +0300)]
net/mlx5e: Add outbound PCI buffer overflow counter

Add outbound_pci_buffer_overflow to ethtool output for monitoring the
number of packets that were dropped due to lack of PCIe buffers on
receive path from NIC port toward the host(s).

This counter is valid only in case that tx_overflow_buffer_pkt is
supported in MCAM enhanced features.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Add RX buffer fullness counters
Gal Pressman [Sun, 18 Jun 2017 11:56:57 +0000 (14:56 +0300)]
net/mlx5e: Add RX buffer fullness counters

rx_buffer_passed_thres_phy - The number of events where the port RX
buffer has passed a fullness threshold.

rx_buffer_full_phy - The number of events where the port RX buffer has
reached 100% fullness.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5: Add RX buffer fullness counters infrastructure
Gal Pressman [Sun, 18 Jun 2017 11:56:45 +0000 (14:56 +0300)]
net/mlx5: Add RX buffer fullness counters infrastructure

Add capability bit in PCAM register and counters to PPCNT register.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Add PCIe outbound stalls counters
Gal Pressman [Thu, 15 Jun 2017 15:29:32 +0000 (18:29 +0300)]
net/mlx5e: Add PCIe outbound stalls counters

outbound_pci_stalled_rd - The percentage of time within the last second
that the NIC had outbound non-posted read requests but could not perform
the operation due to insufficient non-posted credits.

outbound_pci_stalled_wr - The percentage of time within the
last second that the NIC had outbound posted writes requests but could
not perform the operation due to insufficient posted credits.

outbound_pci_stalled_rd_events - The number of events where
outbound_pci_stalled_rd was above the threshold.

outbound_pci_stalled_wr_events - The number of events where
outbound_pci_stalled_wr was above the threshold.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5: Add PCIe outbound stalls counters infrastructure
Gal Pressman [Thu, 15 Jun 2017 15:29:23 +0000 (18:29 +0300)]
net/mlx5: Add PCIe outbound stalls counters infrastructure

Add capability bit in MCAM register and counters to MPCNT register.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: IPoIB, Add support for get_link_ksettings in ethtool
Shalom Lagziel [Sun, 28 May 2017 13:40:24 +0000 (16:40 +0300)]
net/mlx5e: IPoIB, Add support for get_link_ksettings in ethtool

Add support for "ethtool DEVNAME" over ipoib ports,
Display standard port information for IPoIB netdevices using ethtool
For example:
$ ethtool ib2
> Settings for ib2:
        Supported ports: [ ]
        Supported link modes:   Not reported
        Supported pause frame use: No
        Supports auto-negotiation: No
        Advertised link modes:  Not reported
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Speed: 100000Mb/s
        Duplex: Full
        Port: Other
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Link detected: yes

Signed-off-by: Shalom Lagziel <shaloml@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: IPoIB, Fix driver name retrieved by ethtool
Feras Daoud [Mon, 10 Jul 2017 15:35:06 +0000 (18:35 +0300)]
net/mlx5e: IPoIB, Fix driver name retrieved by ethtool

Printing an enhanced IPoIB device information using
"ethtool -i DEVNAME", prints the low level driver name: mlx5_core.
This commit changes the name to mlx5_core [ib_ipoib], to include the
ipoib device driver infromation.

Fixes: 076b0936e5fb ("net/mlx5e: IPoIB, Add ethtool support")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Send PAOS command on interface up/down
Eran Ben Elisha [Sun, 5 Feb 2017 15:57:40 +0000 (17:57 +0200)]
net/mlx5e: Send PAOS command on interface up/down

Upon interface up/down, driver will send PAOS (Ports Administrative and
Operational Status Register) in order to inform the Firmware on the
desired status of the port by the driver.

Since now we might change physical link status on mlx5e_open/close,
logical VF representor should not use mlx5e_open/close ndos as is, and
should call the logical version mlx5e_open/closed_locked.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agogenirq/ipi: Fixup checks against nr_cpu_ids
Alexey Dobriyan [Sat, 19 Aug 2017 09:57:51 +0000 (12:57 +0300)]
genirq/ipi: Fixup checks against nr_cpu_ids

Valid CPU ids are [0, nr_cpu_ids-1] inclusive.

Fixes: 3b8e29a82dd1 ("genirq: Implement ipi_send_mask/single()")
Fixes: f9bce791ae2a ("genirq: Add a new function to get IPI reverse mapping")
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20170819095751.GB27864@avx2
7 years agobpf: linux/bpf.h needs linux/numa.h
David S. Miller [Sun, 20 Aug 2017 06:34:03 +0000 (23:34 -0700)]
bpf: linux/bpf.h needs linux/numa.h

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'BPF-inline-improvements'
David S. Miller [Sun, 20 Aug 2017 04:56:34 +0000 (21:56 -0700)]
Merge branch 'BPF-inline-improvements'

Daniel Borkmann says:

====================
BPF inline improvements

First one makes htab inlining more robust wrt future jits and
second one inlines map in map lookups through map_gen_lookup()
callback.

v1 -> v2:
  - BITS_PER_LONG guard in patch 1
  - BPF_EMIT_CALL is on __htab_map_lookup_elem
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: inline map in map lookup functions for array and htab
Daniel Borkmann [Sat, 19 Aug 2017 01:12:46 +0000 (03:12 +0200)]
bpf: inline map in map lookup functions for array and htab

Avoid two successive functions calls for the map in map lookup, first
is the bpf_map_lookup_elem() helper call, and second the callback via
map->ops->map_lookup_elem() to get to the map in map implementation.
Implementation inlines array and htab flavor for map in map lookups.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: make htab inlining more robust wrt assumptions
Daniel Borkmann [Sat, 19 Aug 2017 01:12:45 +0000 (03:12 +0200)]
bpf: make htab inlining more robust wrt assumptions

Commit 9015d2f59535 ("bpf: inline htab_map_lookup_elem()") was
making the assumption that a direct call emission to the function
__htab_map_lookup_elem() will always work out for JITs.

This is currently true since all JITs we have are for 64 bit archs,
but in case of 32 bit JITs like upcoming arm32, we get a NULL pointer
dereference when executing the call to __htab_map_lookup_elem()
since passed arguments are of a different size (due to pointer args)
than what we do out of BPF. Guard and thus limit this for now for
the current 64 bit JITs only.

Reported-by: Shubham Bansal <illusionist.neo@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'bpf-Allow-selecting-numa-node-during-map-creation'
David S. Miller [Sun, 20 Aug 2017 04:35:44 +0000 (21:35 -0700)]
Merge branch 'bpf-Allow-selecting-numa-node-during-map-creation'

Martin KaFai Lau says:

====================
bpf: Allow selecting numa node during map creation

This series allows user to pick the numa node during map creation.
The first patch has the details
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Allow numa selection in INNER_LRU_HASH_PREALLOC test of map_perf_test
Martin KaFai Lau [Fri, 18 Aug 2017 18:28:01 +0000 (11:28 -0700)]
bpf: Allow numa selection in INNER_LRU_HASH_PREALLOC test of map_perf_test

This patch makes the needed changes to allow each process of
the INNER_LRU_HASH_PREALLOC test to provide its numa node id
when creating the lru map.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Allow selecting numa node during map creation
Martin KaFai Lau [Fri, 18 Aug 2017 18:28:00 +0000 (11:28 -0700)]
bpf: Allow selecting numa node during map creation

The current map creation API does not allow to provide the numa-node
preference.  The memory usually comes from where the map-creation-process
is running.  The performance is not ideal if the bpf_prog is known to
always run in a numa node different from the map-creation-process.

One of the use case is sharding on CPU to different LRU maps (i.e.
an array of LRU maps).  Here is the test result of map_perf_test on
the INNER_LRU_HASH_PREALLOC test if we force the lru map used by
CPU0 to be allocated from a remote numa node:

[ The machine has 20 cores. CPU0-9 at node 0. CPU10-19 at node 1 ]

># taskset -c 10 ./map_perf_test 512 8 1260000 8000000
5:inner_lru_hash_map_perf pre-alloc 1628380 events per sec
4:inner_lru_hash_map_perf pre-alloc 1626396 events per sec
3:inner_lru_hash_map_perf pre-alloc 1626144 events per sec
6:inner_lru_hash_map_perf pre-alloc 1621657 events per sec
2:inner_lru_hash_map_perf pre-alloc 1621534 events per sec
1:inner_lru_hash_map_perf pre-alloc 1620292 events per sec
7:inner_lru_hash_map_perf pre-alloc 1613305 events per sec
0:inner_lru_hash_map_perf pre-alloc 1239150 events per sec  #<<<

After specifying numa node:
># taskset -c 10 ./map_perf_test 512 8 1260000 8000000
5:inner_lru_hash_map_perf pre-alloc 1629627 events per sec
3:inner_lru_hash_map_perf pre-alloc 1628057 events per sec
1:inner_lru_hash_map_perf pre-alloc 1623054 events per sec
6:inner_lru_hash_map_perf pre-alloc 1616033 events per sec
2:inner_lru_hash_map_perf pre-alloc 1614630 events per sec
4:inner_lru_hash_map_perf pre-alloc 1612651 events per sec
7:inner_lru_hash_map_perf pre-alloc 1609337 events per sec
0:inner_lru_hash_map_perf pre-alloc 1619340 events per sec #<<<

This patch adds one field, numa_node, to the bpf_attr.  Since numa node 0
is a valid node, a new flag BPF_F_NUMA_NODE is also added.  The numa_node
field is honored if and only if the BPF_F_NUMA_NODE flag is set.

Numa node selection is not supported for percpu map.

This patch does not change all the kmalloc.  F.e.
'htab = kzalloc()' is not changed since the object
is small enough to stay in the cache.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobnxt_en: fix spelling mistake: "swtichdev" -> "switchdev"
Colin Ian King [Fri, 18 Aug 2017 15:40:00 +0000 (16:40 +0100)]
bnxt_en: fix spelling mistake: "swtichdev" -> "switchdev"

Trivial fix to spelling mistake in a netdev_info message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: hns3: fix a handful of spelling mistakes
Colin Ian King [Fri, 18 Aug 2017 15:30:00 +0000 (16:30 +0100)]
net: hns3: fix a handful of spelling mistakes

Trival fix to spelling mistakes:

firware -> firmware
invald -> invalid
mutilcast -> multicast

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'net-const-eisa_device_id'
David S. Miller [Sun, 20 Aug 2017 00:13:41 +0000 (17:13 -0700)]
Merge branch 'net-const-eisa_device_id'

Arvind Yadav says:

====================
constify net eisa_device_id

eisa_device_id are not supposed to change at runtime. All functions
working with eisa_device_id provided by <linux/eisa.h> work with
const eisa_device_id. So mark the non-const structs as const.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: defxx: constify eisa_device_id
Arvind Yadav [Sat, 19 Aug 2017 06:53:34 +0000 (12:23 +0530)]
net: defxx: constify eisa_device_id

eisa_device_id are not supposed to change at runtime. All functions
working with eisa_device_id provided by <linux/eisa.h> work with
const eisa_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: hp100: constify eisa_device_id
Arvind Yadav [Sat, 19 Aug 2017 06:53:14 +0000 (12:23 +0530)]
net: hp100: constify eisa_device_id

eisa_device_id are not supposed to change at runtime. All functions
working with eisa_device_id provided by <linux/eisa.h> work with
const eisa_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: de4x5: constify eisa_device_id
Arvind Yadav [Sat, 19 Aug 2017 06:52:44 +0000 (12:22 +0530)]
net: de4x5: constify eisa_device_id

eisa_device_id are not supposed to change at runtime. All functions
working with eisa_device_id provided by <linux/eisa.h> work with
const eisa_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: 3c59x: constify eisa_device_id
Arvind Yadav [Sat, 19 Aug 2017 06:52:13 +0000 (12:22 +0530)]
net: 3c59x: constify eisa_device_id

eisa_device_id are not supposed to change at runtime. All functions
working with eisa_device_id provided by <linux/eisa.h> work with
const eisa_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: 3c509: constify eisa_device_id
Arvind Yadav [Sat, 19 Aug 2017 06:51:43 +0000 (12:21 +0530)]
net: 3c509: constify eisa_device_id

eisa_device_id are not supposed to change at runtime. All functions
working with eisa_device_id provided by <linux/eisa.h> work with
const eisa_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'nfp-add-basic-ethtool-callbacks-to-representors'
David S. Miller [Sat, 19 Aug 2017 05:39:34 +0000 (22:39 -0700)]
Merge branch 'nfp-add-basic-ethtool-callbacks-to-representors'

Jakub Kicinski says:

====================
nfp: add basic ethtool callbacks to representors

This set extends the basic ethtool functionality to representor
netdevs.  I start with providing link state via ethtool and then
move on to functions such as driver information, statistics and
FW log dump.  The series contains a number of clean ups to the
ethtool stats code too, some of the logic is simplified by making
better use of the nfp_port abstraction.  The stats we expose on
representors are only the PCIe and MAC port statistics firmware
maintains for us.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: don't reuse pointers in ring dumping
Jakub Kicinski [Fri, 18 Aug 2017 22:48:22 +0000 (15:48 -0700)]
nfp: don't reuse pointers in ring dumping

We were reusing skb pointer when reading page frag, since ring
entries contain a union of a skb and frag pointer.  This can
be confusing to people reading the code.  Refactor the code
to read frag pointer directly.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: fix copy paste in names and messages regarding vNICs
Jakub Kicinski [Fri, 18 Aug 2017 22:48:21 +0000 (15:48 -0700)]
nfp: fix copy paste in names and messages regarding vNICs

Data and control vNICs currently use the same area name and
error message.  This could lead to confusion.  Make sure
the error message says "ctrl" in case of control and the
data area is called "nfp.bar0".

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add ethtool statistics for representors
Jakub Kicinski [Fri, 18 Aug 2017 22:48:20 +0000 (15:48 -0700)]
nfp: add ethtool statistics for representors

Representors may be associated with both VFs or more importantly
with physical ports.  Allow vNIC and MAC statistics to be read
with ethtool -S on representors.  In case of vNICs we reuse
the vNIC statistic helper, we just need to swap RX and TX to
give statistics the "switch perspective."

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add pointer to vNIC config memory to nfp_port structure
Jakub Kicinski [Fri, 18 Aug 2017 22:48:19 +0000 (15:48 -0700)]
nfp: add pointer to vNIC config memory to nfp_port structure

Simplify the statistics handling code by keeping pointer to vNIC's
config memory in nfp_port.  Note that this is referring to the
representor side of vNICs, vNIC side has the pointer in nfp_net.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: report MAC statistics in ethtool
Jakub Kicinski [Fri, 18 Aug 2017 22:48:18 +0000 (15:48 -0700)]
nfp: report MAC statistics in ethtool

Add reporting of MAC statistics in ethtool.  MAC statistics
are read out from the MAC IP and accumulated by application
FW, therefore their presence depends on the application FW.

Add missing defines and string names for the statistics and
dump them in ethtool -S.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: store pointer to MAC statistics in nfp_port
Jakub Kicinski [Fri, 18 Aug 2017 22:48:17 +0000 (15:48 -0700)]
nfp: store pointer to MAC statistics in nfp_port

Store pointer to device memory containing MAC statistics
in nfp_port.  This simplifies representor code and will
be used to dump those statistics in ethtool as well.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: split software and hardware vNIC statistics
Jakub Kicinski [Fri, 18 Aug 2017 22:48:16 +0000 (15:48 -0700)]
nfp: split software and hardware vNIC statistics

In preparation for reporting vNIC HW stats on representors
split handling of the SW and HW stats in ethtool -S.
Representors don't have SW stats (since vNIC is assigned
to the VM).

Remove the questionable defines which assume nn variable
exists in the scope.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add helper for printing ethtool strings
Jakub Kicinski [Fri, 18 Aug 2017 22:48:15 +0000 (15:48 -0700)]
nfp: add helper for printing ethtool strings

Add a helper for printing ethtool strings and advancing the
pointer correctly.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: don't report standard netdev statistics in ethtool
Jakub Kicinski [Fri, 18 Aug 2017 22:48:14 +0000 (15:48 -0700)]
nfp: don't report standard netdev statistics in ethtool

We have been recently called out as a bad example for reporting
standard netdev statistics as part of ethtool.  Fix that :)

Removing standard statistics allows us to simplify the structure
holding definitions since we no longer have to mux different types
of statistics.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: allow retreiving management FW logs on representors
Jakub Kicinski [Fri, 18 Aug 2017 22:48:13 +0000 (15:48 -0700)]
nfp: allow retreiving management FW logs on representors

Users should be able to dump the management FW logs on any
of the driver's netdevs.  Make the code only depend on the
nfp_app and share it between vNICs and representors.

Storing the dump flag is simply dropped for now, since we
only support the argument being set to 0.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: provide ethtool_drvinfo on representors
Jakub Kicinski [Fri, 18 Aug 2017 22:48:12 +0000 (15:48 -0700)]
nfp: provide ethtool_drvinfo on representors

Extend representors' ethtool ops to show basic info like firmware
version, driver version, and driver name.

While at it don't set drvinfo.n_stats and drvinfo.regdump_len,
core will invoke appropriate handlers to get those.

A helper is added to turn a netdev into nfp_app for convenience.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: link basic ethtool ops to representors
Jakub Kicinski [Fri, 18 Aug 2017 22:48:11 +0000 (15:48 -0700)]
nfp: link basic ethtool ops to representors

Start linking ethtool ops to representors.  Begin by adding
a separate ops structure and providing link state.  Next
patches will convert appropriate functions to only use nfp_port,
which will make them reusable on representors.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'net-sysfs-related-cleanups'
David S. Miller [Sat, 19 Aug 2017 05:38:55 +0000 (22:38 -0700)]
Merge branch 'net-sysfs-related-cleanups'

Stephen Hemminger says:

====================
net: sysfs related cleanups

Network sysfs infrastructure changes. Mostly related to using ro_after_init
to make function tables immutable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: style cleanups
stephen hemminger [Fri, 18 Aug 2017 20:46:28 +0000 (13:46 -0700)]
net: style cleanups

Make code closer to current style. Mostly whitespace changes.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mark receive queue attributes ro_after_init
stephen hemminger [Fri, 18 Aug 2017 20:46:27 +0000 (13:46 -0700)]
net: mark receive queue attributes ro_after_init

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: make queue attributes ro_after_init
stephen hemminger [Fri, 18 Aug 2017 20:46:26 +0000 (13:46 -0700)]
net: make queue attributes ro_after_init

The XPS queue attributes can be ro_after_init.
Also use __ATTR_RX macros to simplify initialization.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: make BQL sysfs attributes ro_after_init
stephen hemminger [Fri, 18 Aug 2017 20:46:25 +0000 (13:46 -0700)]
net: make BQL sysfs attributes ro_after_init

Also fix macro to not have ; at end.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: drop unused attribute argument from sysfs queue funcs
stephen hemminger [Fri, 18 Aug 2017 20:46:24 +0000 (13:46 -0700)]
net: drop unused attribute argument from sysfs queue funcs

The show and store functions don't need/use the attribute.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: make net sysfs attributes ro_after_init
stephen hemminger [Fri, 18 Aug 2017 20:46:23 +0000 (13:46 -0700)]
net: make net sysfs attributes ro_after_init

The attributes of net devices are immutable.

Ideally, attribute groups would contain const attributes
but there are too many places that do modifications of list
during startup (in other code) to allow that.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: constify net_ns_type_operations
stephen hemminger [Fri, 18 Aug 2017 20:46:22 +0000 (13:46 -0700)]
net: constify net_ns_type_operations

This can be const.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>