openwrt/staging/blogic.git
7 years agoMerge branch 'samples-pktgen-updates'
David S. Miller [Thu, 2 Nov 2017 05:19:53 +0000 (14:19 +0900)]
Merge branch 'samples-pktgen-updates'

Jesper Dangaard Brouer says:

====================
Updates for samples/pktgen

This patchset updates samples/pktgen and synchronize with changes
maintained in https://github.com/netoptimizer/network-testing/

Features wise Robert Hoo <robert.hu@intel.com> added support for
detecting and determining dev NUMA node IRQs, and added a new script
named pktgen_sample06_numa_awared_queue_irq_affinity.sh that use these
features.

Cleanup remove last of the old sample files, as IPv6 is covered by
existing sample code.
====================

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosamples/pktgen: remove remaining old pktgen sample scripts
Jesper Dangaard Brouer [Wed, 1 Nov 2017 10:41:24 +0000 (11:41 +0100)]
samples/pktgen: remove remaining old pktgen sample scripts

Since commit 0f06a6787e05 ("samples: Add an IPv6 '-6' option to the
pktgen scripts") the newer pktgen_sampleXX script does show howto use
IPv6 with pktgen.

Thus, there is no longer a reason to keep the older sample scripts around.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosamples/pktgen: update sample03, no need for clones when bursting
Jesper Dangaard Brouer [Wed, 1 Nov 2017 10:41:19 +0000 (11:41 +0100)]
samples/pktgen: update sample03, no need for clones when bursting

Like sample05, don't use pktgen clone_skb feature when using 'burst' feature,
it is not really needed.  This brings the burst users in sync.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosamples/pktgen: add script pktgen_sample06_numa_awared_queue_irq_affinity.sh
Robert Hoo [Wed, 1 Nov 2017 10:41:14 +0000 (11:41 +0100)]
samples/pktgen: add script pktgen_sample06_numa_awared_queue_irq_affinity.sh

This script simply does:

* Detect $DEV's NUMA node belonging.

* Bind each thread (processor of NUMA locality) with each $DEV queue's
  irq affinity, 1:1 mapping.

* How many '-t' threads input determines how many queues will be utilized.

If '-f' designates first cpu id, then offset in the NUMA node's cpu list.

(Changes by Jesper: allow changing count from cmdline via '-n')

Signed-off-by: Robert Hoo <robert.hu@intel.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosamples/pktgen: Add some helper functions
Robert Hoo [Wed, 1 Nov 2017 10:41:09 +0000 (11:41 +0100)]
samples/pktgen: Add some helper functions

1. given a device, get its NUMA belongings
2. given a device, get its queues' irq numbers.
3. given a NUMA node, get its cpu id list.

Signed-off-by: Robert Hoo <robert.hu@intel.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'enic-Additional-ethtool-support'
David S. Miller [Thu, 2 Nov 2017 05:17:12 +0000 (14:17 +0900)]
Merge branch 'enic-Additional-ethtool-support'

Parvi Kaustubhi says:

====================
enic: Additional ethtool support

This patch set allows the user to show or modify rx/tx ring sizes using
ethtool.

v2:
- remove unused variable to fix build warning.
- update list of maintainers for cisco vic ethernet nic driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMAINTAINERS: update MAINTAINERS for cisco vic
Parvi Kaustubhi [Wed, 1 Nov 2017 15:44:48 +0000 (08:44 -0700)]
MAINTAINERS: update MAINTAINERS for cisco vic

Add myself to list of maintainers for cisco vic ethernet nic driver. Remove
Neel as he left.

Signed-off-by: Parvi Kaustubhi <pkaustub@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoenic: Add support for 'ethtool -g/-G'
Parvi Kaustubhi [Wed, 1 Nov 2017 15:44:47 +0000 (08:44 -0700)]
enic: Add support for 'ethtool -g/-G'

Add support for displaying and modifying rx and tx ring sizes using
ethtool.

Also, increasing version to  2.3.0.45

Signed-off-by: Parvi Kaustubhi <pkaustub@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoenic: reset fetch index
Parvi Kaustubhi [Wed, 1 Nov 2017 15:44:46 +0000 (08:44 -0700)]
enic: reset fetch index

Since we are allowing rx ring size modification, reset fetch index
everytime. Otherwise it could have a stale value that can lead to a null
pointer dereference.

Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: Parvi Kaustubhi <pkaustub@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...
David S. Miller [Wed, 1 Nov 2017 13:08:48 +0000 (22:08 +0900)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2017-11-01

Here's one more bluetooth-next pull request for the 4.15 kernel.

 - New NFA344A device entry for btusb drvier
 - Fix race conditions in hci_ldisc
 - Fix for isochronous interface assignments in btusb driver
 - A few other smaller fixes & improvements

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: fix verifier memory leaks
Alexei Starovoitov [Wed, 1 Nov 2017 07:08:04 +0000 (00:08 -0700)]
bpf: fix verifier memory leaks

fix verifier memory leaks

Fixes: 638f5b90d460 ("bpf: reduce verifier memory consumption")
Signed-off-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'cxgb4-add-hash-filter-support-to-tc-flower-offload'
David S. Miller [Wed, 1 Nov 2017 13:06:04 +0000 (22:06 +0900)]
Merge branch 'cxgb4-add-hash-filter-support-to-tc-flower-offload'

Rahul Lakkireddy says:

====================
cxgb4: add hash-filter support to tc-flower offload

This series of patches add support to create hash-filters; a.k.a
exact-match filters, to tc-flower offload.  T6 supports creating
~500K hash-filters in hw and can theoretically be expanded up to
~1 million.

Patch 1 fetches and saves the configured hw filter tuple field shifts
and filter mask.

Patch 2 initializes the driver to use hash-filter configuration.

Patch 3 adds support to create hash filters in hw.

Patch 4 adds support to delete hash filters in hw.

Patch 5 adds support to retrieve filter stats for hash filters.

Patch 6 converts the flower table to use rhashtable instead of
static hlist.

Patch 7 finally adds support to create hash filters via tc-flower
offload.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4: add support to create hash-filters via tc-flower offload
Kumar Sanghvi [Wed, 1 Nov 2017 03:23:05 +0000 (08:53 +0530)]
cxgb4: add support to create hash-filters via tc-flower offload

Determine whether the flow classifies as exact-match with respect to
4-tuple and configured tuple mask in hw. If successfully classified
as exact-match, offload the flow as hash-filter in hw.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4: convert flower table to use rhashtable
Kumar Sanghvi [Wed, 1 Nov 2017 03:23:04 +0000 (08:53 +0530)]
cxgb4: convert flower table to use rhashtable

T6 supports ~500K hash filters and can theoretically climb up to
~1 million hash filters. Preallocated hash table is not efficient
in terms of memory usage. So, use rhashtable instead which gives
the flexibility to grow based on usage.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4: add support to retrieve stats for hash filters
Kumar Sanghvi [Wed, 1 Nov 2017 03:23:03 +0000 (08:53 +0530)]
cxgb4: add support to retrieve stats for hash filters

Add support to retrieve packet-count and byte-count for hash-filters
by retrieving filter-entry appropriately based on whether the
request is for hash-filter or not.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4: add support to delete hash filter
Kumar Sanghvi [Wed, 1 Nov 2017 03:23:02 +0000 (08:53 +0530)]
cxgb4: add support to delete hash filter

Use a combined ulptx work-request to send hash filter deletion
request to hw. Hash filter deletion reply is processed on
getting cpl_abort_rpl_rss.

Release any L2T/SMT/CLIP entries on filter deletion.
Also, free up the corresponding filter entry.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4: add support to create hash filters
Kumar Sanghvi [Wed, 1 Nov 2017 03:23:01 +0000 (08:53 +0530)]
cxgb4: add support to create hash filters

Add support to create hash (exact-match) filters based on the value
of 'hash' field in ch_filter_specification.

Allocate SMT/L2T entries if DMAC-rewrite/SMAC-rewrite is requested.

Allocate CLIP entry in case of IPv6 filter.

Use cpl_act_open_req[6] to send hash filter create request to hw.
Also, the filter tuple is calculated as part of sending this request.

Hash-filter reply is processed on getting cpl_act_open_rpl.
In case of success, various bits/fields in filter-tcb are set per
filter requirement, such as enabling filter hitcnts, and/or various
header rewrite operations, such as VLAN-rewrite, NAT or
(L3/L4)-rewrite, and SMAC/DMAC-rewrite. In case of failure, clear the
filter entry and release any hw resources occupied by it.

The patch also moves the functions set_tcb_field, set_tcb_tflag and
configure_filter_smac towards beginning of file.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4: initialize hash-filter configuration
Kumar Sanghvi [Wed, 1 Nov 2017 03:23:00 +0000 (08:53 +0530)]
cxgb4: initialize hash-filter configuration

Add support for hash-filter configuration on T6. Also, do basic
checks for the related initialization.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4: save additional filter tuple field shifts in tp_params
Kumar Sanghvi [Wed, 1 Nov 2017 03:22:59 +0000 (08:52 +0530)]
cxgb4: save additional filter tuple field shifts in tp_params

Save additional filter tuple field shifts in tp_params based on
configured filter tuple fields.

Also, save the combined filter tuple mask based on configured
filter tuple fields.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'lan9303-Fix-STP-and-flooding-issues'
David S. Miller [Wed, 1 Nov 2017 12:30:24 +0000 (21:30 +0900)]
Merge branch 'lan9303-Fix-STP-and-flooding-issues'

Egil Hjelmeland says:

====================
net: dsa: lan9303: Fix STP and flooding issues

This patch set finishes the STP support, and fixes flooding issues.

Patch 1 fixes a flooding issue in the previous patch set.
Patch 2 finishes STP support by adding a ALR entry.
Patch 3 prevent duplicate flooding in HW and SW bridge.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: lan9303: lan9303_rcv set skb->offload_fwd_mark
Egil Hjelmeland [Tue, 31 Oct 2017 14:48:02 +0000 (15:48 +0100)]
net: dsa: lan9303: lan9303_rcv set skb->offload_fwd_mark

The chip flood broadcast and unknown multicast frames.
On receive set skb->offload_fwd_mark to prevent the SW from flooding to the
same ports.

One exception: Because the ALR is set up to forward STP BPDUs only to CPU,
the SW bridge should flood STP BPDUs if local STP is not enabled.
This is archived by not setting skb->offload_fwd_mark on STP BPDUs.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: lan9303: Add STP ALR entry on port 0
Egil Hjelmeland [Tue, 31 Oct 2017 14:48:01 +0000 (15:48 +0100)]
net: dsa: lan9303: Add STP ALR entry on port 0

STP BPDUs arriving on user ports must sent to CPU port only,
for processing by the SW bridge.

Add an ALR entry with STP state override to fix that.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: lan9303: Transmit using ALR when unicast
Egil Hjelmeland [Tue, 31 Oct 2017 14:48:00 +0000 (15:48 +0100)]
net: dsa: lan9303: Transmit using ALR when unicast

lan9303_xmit_use_arl() introduced in previous patch set is wrong.
The chip flood broadcast and unknown multicast frames. The effect is that
broadcasts and multicasts are duplicated on egress. It is not possible to
configure the chip to direct unknown multicasts to CPU port only.

This means that only unicast frames can be transmitted using ALR lookup.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: thunderx: remove a couple of redundant assignments
Colin Ian King [Tue, 31 Oct 2017 14:37:55 +0000 (14:37 +0000)]
net: thunderx: remove a couple of redundant assignments

The assignment to pointer msg is redundant as it is never read, so
remove msg.  Also remove the first assignment to qset as this is not
read before the next re-assignment of a new value to qset in the
for-loop. Cleans up two clang warnings:

drivers/net/ethernet/cavium/thunder/nic_main.c:589:2: warning: Value
stored to 'msg' is never read
drivers/net/ethernet/cavium/thunder/nic_main.c:611:2: warning: Value
stored to 'qset' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMAINTAINERS: Add lib/net_utils.c to NETWORKING (general)
Andy Shevchenko [Tue, 31 Oct 2017 14:37:18 +0000 (16:37 +0200)]
MAINTAINERS: Add lib/net_utils.c to NETWORKING (general)

It looks like the best place in MAINTAINERS data base to cover this
orphaned module.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosfc: support rx-fcs and rx-all
Edward Cree [Tue, 31 Oct 2017 14:29:47 +0000 (14:29 +0000)]
sfc: support rx-fcs and rx-all

Ethernet FCS inclusion (rx-fcs) is supported on EF10 NICs, conditional on
 a firmware capability bit (MC_CMD_GET_CAPABILITIES_OUT_RX_INCLUDE_FCS).
To receive frames with bad FCS (rx-all) we just don't return the discard
 flag EFX_RX_PKT_DISCARD from efx_ef10_handle_rx_event_errors() or
 efx_farch_handle_rx_not_ok().

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: macb: remove redundant assignment to variable work_done
Colin Ian King [Tue, 31 Oct 2017 14:23:24 +0000 (14:23 +0000)]
net: macb: remove redundant assignment to variable work_done

Variable work_done is set to zero and this value is never read, instead
it is set to another value a few statements later.  Remove the redundant
assignment. Cleans up clang warning:

drivers/net/ethernet/cadence/macb_main.c:1221:2: warning: Value stored
to 'work_done' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoipv4: fix validate_source for VRF setup
Paolo Abeni [Tue, 31 Oct 2017 13:32:38 +0000 (14:32 +0100)]
ipv4: fix validate_source for VRF setup

David reported breakages of VRF scenarios due to the
commit 6e617de84e87 ("net: avoid a full fib lookup when rp_filter is
disabled."): the local addresses based test is too strict when VRFs
are in place.

With this change we fall-back to a full lookup when custom fib rules
are in place; so that we address the VRF use case and possibly other
similar issues in non trivial setups.

v1 -> v2:
 - fix build breakage when CONFIG_IP_MULTIPLE_TABLES is not defined,
   reported by the kbuild test robot

Reported-by: David Ahern <dsahern@gmail.com>
Fixes: 6e617de84e87 ("net: avoid a full fib lookup when rp_filter is disabled.")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: fix error return code in sctp_send_add_streams()
Wei Yongjun [Tue, 31 Oct 2017 13:28:16 +0000 (13:28 +0000)]
sctp: fix error return code in sctp_send_add_streams()

Fix to returnerror code -ENOMEM from the sctp_make_strreset_addstrm()
error handling case instead of 0. 'retval' can be overwritten to 0 after
call sctp_stream_alloc_out().

Fixes: e090abd0d81c ("sctp: factor out stream->out allocation")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: hso: remove redundant unused variable dev
Colin Ian King [Tue, 31 Oct 2017 12:01:47 +0000 (12:01 +0000)]
net: hso: remove redundant unused variable dev

The pointer dev is being assigned but is never used, hence it is
redundant and can be removed. Cleans up clang warning:

drivers/net/usb/hso.c:2280:2: warning: Value stored to 'dev' is
never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoppp: Destroy the mutex when cleanup
Gao Feng [Tue, 31 Oct 2017 10:25:37 +0000 (18:25 +0800)]
ppp: Destroy the mutex when cleanup

The mutex_destroy only makes sense when enable DEBUG_MUTEX. For the
good readbility, it's better to invoke it in exit func when the init
func invokes mutex_init.

Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Acked-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ethernet: slicoss: remove redundant initialization of idx
Colin Ian King [Tue, 31 Oct 2017 10:08:23 +0000 (10:08 +0000)]
net: ethernet: slicoss: remove redundant initialization of idx

Variable idx is being initialized and later on over-written by
a new value in a do-loop without the initial value ever being
read. Hence the initializion is redundant and can be removed.
Cleans up clang warning:

drivers/net/ethernet/alacritech/slicoss.c:358:15: warning: Value
stored to 'idx' during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'PHYLINK-cosmetic-and-build-fixes'
David S. Miller [Wed, 1 Nov 2017 12:15:09 +0000 (21:15 +0900)]
Merge branch 'PHYLINK-cosmetic-and-build-fixes'

Florian Fainelli says:

====================
PHYLINK cosmetic and build fixes

Please find two small "fixes" one that corrects some stylistic changes and
another one that fixes an actual build failure in sfp.c. Since PHYLINK is
not directly visible to user, and there are no in-tree users yet (coming)
this is not targeted at "net" but "net-next" instead.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: phy: Fix sfp.c build against GPIO definitions
Florian Fainelli [Tue, 31 Oct 2017 04:42:58 +0000 (21:42 -0700)]
net: phy: Fix sfp.c build against GPIO definitions

include/gpio.h does not contain the references we want, we should be including
linux/gpio/consumer.h instead.

Fixes: 73970055450e ("sfp: add SFP module support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: phy: Cosmetic fixes to phylink/sfp/sfp-bus.c
Florian Fainelli [Tue, 31 Oct 2017 04:42:57 +0000 (21:42 -0700)]
net: phy: Cosmetic fixes to phylink/sfp/sfp-bus.c

Perform a number of stylistic changes to phylink.c, sfp.c and sfp-bus.c:

- align with netdev-style comments
- align function arguments to the opening parenthesis
- remove blank lines
- fixup a few lines over 80 columns

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: document answers to common questions about BPF
Alexei Starovoitov [Tue, 31 Oct 2017 02:39:56 +0000 (19:39 -0700)]
bpf: document answers to common questions about BPF

to address common misconceptions about what BPF is and what it's not
add short BPF Q&A that clarifies core BPF design principles and
answers some common questions.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: display hw address of source machine during ipv6 DAD failure
Vishwanath Pai [Mon, 30 Oct 2017 23:38:52 +0000 (19:38 -0400)]
net: display hw address of source machine during ipv6 DAD failure

This patch updates the error messages displayed in kernel log to include
hwaddress of the source machine that caused ipv6 duplicate address
detection failures.

Examples:

a) When we receive a NA packet from another machine advertising our
address:

ICMPv6: NA: 34:ab:cd:56:11:e8 advertised our address 2001:db8:: on eth0!

b) When we detect DAD failure during address assignment to an interface:

IPv6: eth0: IPv6 duplicate address 2001:db8:: used by 34:ab:cd:56:11:e8
detected!

v2:
    Changed %pI6 to %pI6c in ndisc_recv_na()
    Chaged the v6 address in the commit message to 2001:db8::

Suggested-by: Igor Lubashev <ilubashe@akamai.com>
Signed-off-by: Vishwanath Pai <vpai@akamai.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: b53: Have b53_hdr_setup() enable/disable tagging
Florian Fainelli [Mon, 30 Oct 2017 22:17:20 +0000 (15:17 -0700)]
net: dsa: b53: Have b53_hdr_setup() enable/disable tagging

Have b53_hdr_setup() check what kind of tagging protocol is configured
(Broadcom or none) and apply the correct settings in both cases.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'netrom-cleanups'
David S. Miller [Wed, 1 Nov 2017 11:46:41 +0000 (20:46 +0900)]
Merge branch 'netrom-cleanups'

Gustavo A. R. Silva says:

====================
netrom: refactor code and mark expected switch fall-throughs

The aim of this patchset is firstly to refactor code in nr_route.c in order to make it
easier to read and maintain and, secondly, to mark some expected switch fall-throughs
in preparation to enabling -Wimplicit-fallthrough.

I have to mention that I did not implement any unit test.
If someone has any suggestions on how I could test this piece of code
it'd be greatly appreciated.

Changes in v2:
 - Make use of the swap macro and remove inline keyword as suggested by
   Walter Harms and Kevin Dawson.

Changes in v3:
 - Update subject for both patches.
 - Add this cover letter as suggested by David Miller.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: netrom: nr_route: mark expected switch fall-throughs
Gustavo A. R. Silva [Fri, 27 Oct 2017 05:51:08 +0000 (00:51 -0500)]
net: netrom: nr_route: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: netrom: nr_route: refactor code in nr_add_node
Gustavo A. R. Silva [Fri, 27 Oct 2017 05:51:04 +0000 (00:51 -0500)]
net: netrom: nr_route: refactor code in nr_add_node

Code refactoring in order to make the code easier to read and maintain.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: tipc: Convert timers to use timer_setup()
Kees Cook [Mon, 30 Oct 2017 21:06:45 +0000 (14:06 -0700)]
net: tipc: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Ying Xue <ying.xue@windriver.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: tipc-discussion@lists.sourceforge.net
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodrivers/net: tundra: Convert timers to use timer_setup()
Kees Cook [Mon, 30 Oct 2017 21:05:41 +0000 (14:05 -0700)]
drivers/net: tundra: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Philippe Reynes <tremyfr@gmail.com>
Cc: "yuval.shaia@oracle.com" <yuval.shaia@oracle.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodrivers/net: ntb_netdev: Convert timers to use timer_setup()
Kees Cook [Mon, 30 Oct 2017 21:05:12 +0000 (14:05 -0700)]
drivers/net: ntb_netdev: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Jon Mason <jdmason@kudzu.us>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Allen Hubbe <Allen.Hubbe@emc.com>
Cc: linux-ntb@googlegroups.com
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: avoid rcu_dereference inside bpf_event_mutex lock region
Yonghong Song [Mon, 30 Oct 2017 20:50:22 +0000 (13:50 -0700)]
bpf: avoid rcu_dereference inside bpf_event_mutex lock region

During perf event attaching/detaching bpf programs,
the tp_event->prog_array change is protected by the
bpf_event_mutex lock in both attaching and deteching
functions. Although tp_event->prog_array is a rcu
pointer, rcu_derefrence is not needed to access it
since mutex lock will guarantee ordering.

Verified through "make C=2" that sparse
locking check still happy with the new change.

Also change the label name in perf_event_{attach,detach}_bpf_prog
from "out" to "unlock" to reflect the code action after the label.

Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: sit: Update lookup to handle links set to L3 slave
David Ahern [Mon, 30 Oct 2017 17:07:17 +0000 (10:07 -0700)]
net: sit: Update lookup to handle links set to L3 slave

Using SIT tunnels with VRFs works fine if the underlay device is in a
VRF and the link parameter is set to the VRF device. e.g.,

    ip tunnel add jtun mode sit remote <addr> local <addr> dev myvrf

Update the device check to allow the link to be the enslaved device as
well. e.g.,

    ip tunnel add jtun mode sit remote <addr> local <addr> dev eth4

where eth4 is enslaved to myvrf.

Reported-by: Jeff Barnhill <0xeffeff@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoatm: iphase: Fix space before '[' error.
Arvind Yadav [Mon, 30 Oct 2017 15:52:03 +0000 (21:22 +0530)]
atm: iphase: Fix space before '[' error.

Fix checkpatch.pl error:
ERROR: space prohibited before open square bracket '['.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: bridge: add neigh_suppress to bridge port policies
Nikolay Aleksandrov [Mon, 30 Oct 2017 10:56:33 +0000 (12:56 +0200)]
net: bridge: add neigh_suppress to bridge port policies

Add an entry for IFLA_BRPORT_NEIGH_SUPPRESS to bridge port policies.

Fixes: 821f1b21cabb ("bridge: add new BR_NEIGH_SUPPRESS port flag to suppress arp and nd flood")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'mvpp2-various-improvements'
David S. Miller [Wed, 1 Nov 2017 03:28:33 +0000 (12:28 +0900)]
Merge branch 'mvpp2-various-improvements'

Antoine Tenart says:

====================
net: mvpp2: various improvements

This series includes various patches improving the Marvell PPv2 driver.
I send them as a series to avoid any possible merge conflict.

- Patches 1 and 2 improve the initializing of the Tx and Rx FIFO.
- Patch 3 initialize the RSS table to evenly distribute the ingress
  packets across multiple Rx queues based on their hashes.
- Patch 4 limits the number of TSO segments sent to the driver, to avoid
  having more segments to handle than the corresponding number of
  available descriptors.
- Patch 5 and 6 are cosmetic improvements.

This applies on today's net-next branch, The patches were tested
extensively (I ran iperf and http downloads in parallel, transferring
TBs of data).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: simplify the Tx desc set DMA logic
Antoine Tenart [Mon, 30 Oct 2017 10:23:33 +0000 (11:23 +0100)]
net: mvpp2: simplify the Tx desc set DMA logic

Two functions were always used to set the DMA addresses in Tx
descriptors, because this address is split into a base+offset in the
descriptors. A mask was used to come up with the base and offset
addresses and two functions were called, mvpp2_txdesc_dma_addr_set() and
mvpp2_txdesc_offset_set().

This patch moves the base+offset calculation logic to
mvpp2_txdesc_dma_addr_set(), and removes mvpp2_txdesc_offset_set() to
simplify things.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: use the aggr txq size define everywhere
Antoine Tenart [Mon, 30 Oct 2017 10:23:32 +0000 (11:23 +0100)]
net: mvpp2: use the aggr txq size define everywhere

Cosmetic patch using the MVPP2_AGGR_TXQ_SIZE everywhere instead of the
size field of aggr_txq, as the size never change and is always equal to
the MVPP2_AGGR_TXQ_SIZE define.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: limit TSO segments and use stop/wake thresholds
Antoine Tenart [Mon, 30 Oct 2017 10:23:31 +0000 (11:23 +0100)]
net: mvpp2: limit TSO segments and use stop/wake thresholds

Too many TSO descriptors can be required for the default queue size,
when using small MSS values for example. Prevent this by adding a
maximum number of allowed TSO segments (300). In addition set a stop and
a wake thresholds to stop the queue when there's no room for a 1 "worst
case scenario skb". Wake up the queue when the number of descriptors is
low enough.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: initialize the RSS tables
Antoine Tenart [Mon, 30 Oct 2017 10:23:30 +0000 (11:23 +0100)]
net: mvpp2: initialize the RSS tables

This patch initialize the RSS tables to evenly (depending on the packets
RSS hashes) distribute the packets across port Rx queues. This helps to
handle packets on different CPUs to improve performances, as more queues
will be used in parallel.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: initialize the Tx FIFO size
Antoine Tenart [Mon, 30 Oct 2017 10:23:29 +0000 (11:23 +0100)]
net: mvpp2: initialize the Tx FIFO size

So far only the Rx FIFO size was initialized. For PPv2.2 the Tx FIFO
size can be set as well. This patch initializes the Tx FIFO size for
PPv2.2 controllers to 3K.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: set the Rx FIFO size depending on the port speeds for PPv2.2
Antoine Tenart [Mon, 30 Oct 2017 10:23:28 +0000 (11:23 +0100)]
net: mvpp2: set the Rx FIFO size depending on the port speeds for PPv2.2

The Rx FIFO size was set to the same value for all ports. This patch
sets it depending on the maximum speed a given port can handle. This is
only working for PPv2.2.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.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 [Wed, 1 Nov 2017 03:16:14 +0000 (12:16 +0900)]
Merge branch 'master' of git://git./linux/kernel/git/klassert/ipsec-next

Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2017-10-30

1) Change some variables that can't be negative
   from int to unsigned int. From Alexey Dobriyan.

2) Remove a redundant header initialization in esp6.
   From Colin Ian King.

3) Some BUG to BUG_ON conversions.
   From Gustavo A. R. Silva.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomkiss: remove redundant assignment of len to ax->mtu
Colin Ian King [Sun, 29 Oct 2017 13:30:25 +0000 (13:30 +0000)]
mkiss: remove redundant assignment of len to ax->mtu

Variable len is being assigned a value that is never read,
hence the assignment is redundant and can be removed. Cleans
up clang warning:

drivers/net/hamradio/mkiss.c:443:3: warning: Value stored to
'len' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoselftests/bpf: remove useless bpf_trace_printk
Alexei Starovoitov [Sun, 29 Oct 2017 00:17:13 +0000 (17:17 -0700)]
selftests/bpf: remove useless bpf_trace_printk

sockmap test is using two programs that use bpf_trace_printk()
which prints into trace_pipe, but nothing is reading it.
Remove it.

Fixes: 6f6d33f3b3d0 ("bpf: selftests add sockmap tests")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dccp: ccids: lib: packet_history: use swap macro in tfrc_rx_hist_swap
Gustavo A. R. Silva [Sat, 28 Oct 2017 20:48:47 +0000 (15:48 -0500)]
net: dccp: ccids: lib: packet_history: use swap macro in tfrc_rx_hist_swap

Make use of the swap macro and remove unnecessary variable tmp.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: decnet: dn_nsp_out: use swap macro in dn_mk_ack_header
Gustavo A. R. Silva [Sat, 28 Oct 2017 20:39:48 +0000 (15:39 -0500)]
net: decnet: dn_nsp_out: use swap macro in dn_mk_ack_header

Make use of the swap macro and remove unnecessary variable tmp.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: decnet: dn_nsp_in: use swap macro in dn_nsp_rx_packet
Gustavo A. R. Silva [Sat, 28 Oct 2017 19:38:45 +0000 (14:38 -0500)]
net: decnet: dn_nsp_in: use swap macro in dn_nsp_rx_packet

Make use of the swap macro and remove unnecessary variable tmp.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoforcedeth: replace pci_alloc_consistent with dma_alloc_coherent
Zhu Yanjun [Sat, 28 Oct 2017 12:25:30 +0000 (08:25 -0400)]
forcedeth: replace pci_alloc_consistent with dma_alloc_coherent

The functions pci_alloc_consistent is obsolete. So it is replaced
with dma_alloc_coherent

Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoip_vti: remove the useless err_count check in vti_xmit
Xin Long [Sat, 28 Oct 2017 11:46:21 +0000 (19:46 +0800)]
ip_vti: remove the useless err_count check in vti_xmit

Unlike ipip and gre, ip_vti never uses err_count in vti4_err,
so no need to check err_count in vti_xmit, it's value always 0.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: bcmgenet: Avoid calling platform_device_put() twice in bcmgenet_mii_exit()
Wei Yongjun [Sat, 28 Oct 2017 05:05:46 +0000 (05:05 +0000)]
net: bcmgenet: Avoid calling platform_device_put() twice in bcmgenet_mii_exit()

Remove platform_device_put() call after platform_device_unregister()
from function bcmgenet_mii_exit(), otherwise, we will call
platform_device_put() twice.

Fixes: 9a4e79697009 ("net: bcmgenet: utilize generic Broadcom UniMAC MDIO controller driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'extack-nonfatal'
David S. Miller [Wed, 1 Nov 2017 02:50:43 +0000 (11:50 +0900)]
Merge branch 'extack-nonfatal'

David Ahern says:

====================
net: Allow non-fatal messages to be passed in extack

There are many cases where networking subsystems throw non-fatal warning
messages that end up in dmesg / kernel log to which a user making the
change is completely oblivious. This set makes the extack facility
usable for returning such messages.

The case in point here is spectrum and adding FIB rules which causes an
offload abort. Make the use case more user friendly by letting the user
know that offload is no longer happening because of the rule change.

v2
- kept the offload abort in a work queue entry per Ido's comment
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum_router: Return extack message on abort due to fib rules
David Ahern [Sat, 28 Oct 2017 00:37:14 +0000 (17:37 -0700)]
mlxsw: spectrum_router: Return extack message on abort due to fib rules

Adding a FIB rule on a spectrum platform silently aborts FIB offload:
    $ ip ru add pref 99 from all to 192.168.1.1 table 10
    $ dmesg -c
    [  623.144736] mlxsw_spectrum 0000:03:00.0: FIB abort triggered. Note that FIB entries are no longer being offloaded to this device.

This patch reworks FIB rule handling to return a message to the user:
    $ ip ru add pref 99 from all to 8.8.8.8 table 11
    Error: spectrum: FIB rules not supported. Aborting offload.

spectrum currently only checks whether the fib rule is a default rule or
an l3mdev rule, both of which it knows how to handle. Any other it aborts
FIB offload. Move the processing to check the rule type inline with the
user request. If the rule is an unsupported one, then a work queue entry
is used to abort the offload. Change the rule delete handling to just
return since it does nothing at the moment.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: Add extack to fib_notifier_info
David Ahern [Sat, 28 Oct 2017 00:37:13 +0000 (17:37 -0700)]
net: Add extack to fib_notifier_info

Add extack to fib_notifier_info and plumb through stack to
call_fib_rule_notifiers, call_fib_entry_notifiers and
call_fib6_entry_notifiers. This allows notifer handlers to
return messages to user.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonetlink: Allow ext_ack to carry non-error messages
David Ahern [Sat, 28 Oct 2017 00:37:12 +0000 (17:37 -0700)]
netlink: Allow ext_ack to carry non-error messages

The NLMSGERR API already carries data (eg, a cookie) on the success path.
Allow a message string to be returned as well.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'dsa-port-parsing'
David S. Miller [Wed, 1 Nov 2017 02:47:45 +0000 (11:47 +0900)]
Merge branch 'dsa-port-parsing'

Vivien Didelot says:

====================
net: dsa: add port parsing functions

This patchset adds port parsing functions called early in the new
bindings parsing stage, which regroup all the fetching of static data
available at the port level, including the port's type, name and CPU
master interface.

This simplifies the rest of the code which does not need to dig into
device tree or platform data again in order to check a port's type or
name.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: remove name arg from slave create
Vivien Didelot [Fri, 27 Oct 2017 19:55:19 +0000 (15:55 -0400)]
net: dsa: remove name arg from slave create

Now that slave dsa_port always have their name set, there is no need to
pass it to dsa_slave_create() anymore. Remove this argument.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: get port name at parse time
Vivien Didelot [Fri, 27 Oct 2017 19:55:18 +0000 (15:55 -0400)]
net: dsa: get port name at parse time

Get the optional "label" property and assign a default one directly at
parse time instead of doing it when creating the slave.

For legacy, simply assign the port name stored in cd->port_names.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: get master device at port parsing time
Vivien Didelot [Fri, 27 Oct 2017 19:55:17 +0000 (15:55 -0400)]
net: dsa: get master device at port parsing time

Fetching the master device can be done directly when a port is parsed
from device tree or pdata, instead of waiting until dsa_dst_parse.

Now that -EPROBE_DEFER is returned before we add the switch to the tree,
there is no need to check for this error after dsa_dst_parse.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: get port type at parse time
Vivien Didelot [Fri, 27 Oct 2017 19:55:15 +0000 (15:55 -0400)]
net: dsa: get port type at parse time

Assign a port's type at parsed time instead of waiting for the tree to
be completed.

Because this is now done earlier, we can use the port's type in
dsa_port_is_* helpers instead of digging again in topology description.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: add port parse functions
Vivien Didelot [Fri, 27 Oct 2017 19:55:14 +0000 (15:55 -0400)]
net: dsa: add port parse functions

Add symmetrical DSA port parsing functions for pdata and device tree,
used to parse and validate a given port node or platform data.

They don't do much for the moment but will be extended later on to
assign a port type and get device references.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: get ports within parsing code
Vivien Didelot [Fri, 27 Oct 2017 19:55:13 +0000 (15:55 -0400)]
net: dsa: get ports within parsing code

There is no point into hiding the -EINVAL error code in ERR_PTR from a
dsa_get_ports function, simply get the "ports" node directly from within
the dsa_parse_ports_dn function.

This also has the effect to make the pdata and device tree handling code
symmetrical inside _dsa_register_switch.

At the same time, rename dsa_parse_ports_dn to dsa_parse_ports_of
because _of is a more common suffix for device tree parsing functions.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: reduce verifier memory consumption
Alexei Starovoitov [Wed, 1 Nov 2017 01:16:05 +0000 (18:16 -0700)]
bpf: reduce verifier memory consumption

the verifier got progressively smarter over time and size of its internal
state grew as well. Time to reduce the memory consumption.

Before:
sizeof(struct bpf_verifier_state) = 6520
After:
sizeof(struct bpf_verifier_state) = 896

It's done by observing that majority of BPF programs use little to
no stack whereas verifier kept all of 512 stack slots ready always.
Instead dynamically reallocate struct verifier state when stack
access is detected.
Runtime difference before vs after is within a noise.
The number of processed instructions stays the same.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'liquidio-switchdev-support'
David S. Miller [Wed, 1 Nov 2017 02:39:52 +0000 (11:39 +0900)]
Merge branch 'liquidio-switchdev-support'

Vijaya Mohan Guvva says:

====================
liquidio: switchdev support for LiquidIO NIC

patch1 of this patch set adds switchdev support for SRIOV capable
LiquidIO NIC, so that for every SRIOV VF on LiquidIO, a representor
netdev is created on hypervisor. It also has changes to send representor
interface configurations like admin state and MTU to LiquidIO firmware and
to retrieve HW counted VF stats for VF representor.

patch2 adds support for switchdev enable/disable from devlink

Patchset Change Log:
  V2 -> V3:
    * Use mac address as the physical switchID.
    * Check for eswitch_mode before returning switchID

  V1 -> V2:
    * Name the representors "pfXvfY".
    * Drop patch3 (ethtool support for switchdev ports) that was in V1
      because it's not necessary.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoliquidio: Configure switchdev with devlink
Vijaya Mohan Guvva [Tue, 31 Oct 2017 23:04:57 +0000 (16:04 -0700)]
liquidio: Configure switchdev with devlink

Enable and disable switchdev on SRIOV capable LiquidIO NIC with devlink.
Create representor netdev for each SRIOV VF function on SRIOV enable and
and do the cleanup on SRIOV disable.

Signed-off-by: Vijaya Mohan Guvva <vijaya.guvva@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoliquidio: switchdev support for LiquidIO NIC
Vijaya Mohan Guvva [Tue, 31 Oct 2017 23:04:53 +0000 (16:04 -0700)]
liquidio: switchdev support for LiquidIO NIC

Enable switchdev for SRIOV capable LiquidIO NIC. It registers
a representor netdev (with switchdev_ops) for each SRIOV VF created.
It also has changes to send representor interface configurations like
admin state and MTU to LiquidIO firmware and to retrieve HW counted
VF stats for VF representor.

Signed-off-by: Vijaya Mohan Guvva <vijaya.guvva@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'mlx5-updates-2017-10-31' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Wed, 1 Nov 2017 02:37:17 +0000 (11:37 +0900)]
Merge tag 'mlx5-updates-2017-10-31' of git://git./linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2017-10-31 mlx5e stats groups

This series from Kamal introduces an important refactoring for mlx5e stats
handling, which groups the stats into generic groups structure which allows
to control the behavior and stats reporting per group in a modular way.

In the first patch Kamal introduces a new data type "mlx5e_stats_grp" This change
defines a new API to create a group of stats and simplifies the way of handling them.
This struct will define the following behavior per group:
    - get_num_stats() - return the number of counters in the group.
    - fill_strings() - fill counters strings within the group.
    - fill_stats() - fill counters values within the group.

All other patches will be straight forward refactoring per stats group,
where Kamal will move each mlx5e stats group to use the new API.

The idea is to have better flexibility and modularity to add new counters,
all ethtool logic was rendered generic and loops through the generic stats groups and
calls the groups callbacks to figure out how and what to report back to user space.

Introducing new file en_stats.c to hold all the new stat groups logic and implementation.
Static structures (counters descriptors) moved from en_stats.h to en_stats.c which reduces
the mlx5_core binary footprint, originally reported and addressed by Stephen Hemminger:
("mlx5: fix space waste from ethtool descriptions") which was waived due to this re-design.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Wed, 1 Nov 2017 02:08:18 +0000 (11:08 +0900)]
Merge branch '40GbE' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2017-10-31

This series contains updates to i40e, i40evf and net/sched.

Arnd Bergmann cleans up the power management code to resolve a build
warning.

Shannon Nelson fixes i40e to only redistribute our vectors when we did
not get the full count that we requested.

Alex reverts a previous commit because it potentially causes a memory leak
when combined with the current page recycling scheme.

Amritha enables configuring cloud filters in i40e using the tc-flower
classifier.  The classification function of the filter is to match a
packet to a traffic class.  cls_flower is extended to offload classid to
hardware.  Hardware traffic classes are identified using classid values
reserved in the range :ffe0 - :ffef.
The cloud filters are added for a VSI and are cleaned up when the VSI is
deleted. The filters that match on L4 ports needs enhanced admin queue
functions with big buffer support for extended fields in cloud filter
commands.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotc-testing: better test case file error reporting
Brenda J. Butler [Tue, 31 Oct 2017 18:29:03 +0000 (14:29 -0400)]
tc-testing: better test case file error reporting

tdc.py reads a bunch of test cases in json files.  When a json file
cannot be parsed, tdc just exits and does not run any tests.

This patch will cause tdc to print a message with the file name and
line number, then that file will be ignored and the rest of the tests
will be processed.

Signed-off-by: Brenda J. Butler <bjb@mojatatu.com>
Acked-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotc-testing: better check if thing is list
Brenda J. Butler [Tue, 31 Oct 2017 18:28:35 +0000 (14:28 -0400)]
tc-testing: better check if thing is list

Check if tcase[k] is an instance of a list (is or is derived from list)
instead of checking if it is a list.

This will be useful if the data structures change to be something
that implements list, instead of being an actual list.  In that
case, this code will not have to change.

Signed-off-by: Brenda J. Butler <bjb@mojatatu.com>
Acked-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotc-testing: correction to docstring in get_unique_item
Brenda J. Butler [Tue, 31 Oct 2017 18:28:02 +0000 (14:28 -0400)]
tc-testing: correction to docstring in get_unique_item

Signed-off-by: Brenda J. Butler <bjb@mojatatu.com>
Acked-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotc-testing: split config file
Brenda J. Butler [Tue, 31 Oct 2017 18:27:28 +0000 (14:27 -0400)]
tc-testing: split config file

Move the config customization into a site-local file
tdc_config_local.py, so that updates of the tdc test
software does not require hand-editing of the config.
This patch includes a template for the site-local
customization file.

In addition, this makes it easy to revert to a stock
tdc environment for testing the test framework and/or
the core tests.

Also it makes it harder for any custom config to be
submitted back to the kernel tdc.

Signed-off-by: Brenda J. Butler <bjb@mojatatu.com>
Acked-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotc-testing: gitignore, ignore standard python artifacts
Brenda J. Butler [Tue, 31 Oct 2017 18:26:54 +0000 (14:26 -0400)]
tc-testing: gitignore, ignore standard python artifacts

Ignore .pyc files, "python compiled" files, that get created
when a python script is run.  They should never be committed.

Signed-off-by: Brenda J. Butler <bjb@mojatatu.com>
Acked-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotc-testing: very simple example test cases
Brenda J. Butler [Tue, 31 Oct 2017 18:25:46 +0000 (14:25 -0400)]
tc-testing: very simple example test cases

As part of documentation, supply some very simple test cases
to illustrate how test cases work.  One test case shows
commands in the setup, command, verify and teardown stages.
Other test cases show how to have a working test case that
does not have commands in the setup, verify and/or teardown
stages.

Specifically, the command lists for setup and teardown can
be empty.  And the verify command must have a command, but
it can be /bin/true.  The regex must have a string, we
recommend a single space, and the count of matches must be
zero if you do not want to use the match feature of verify.
Verify will always look for a return code of success (0)
so we give /bin/true when we do not want to make a check
there.

Also, update the documentation for testcases to be more
specific in the cases of:

    - accepting non-success return codes in setup and
      teardown stages
    - how to write the test when no setup, teardown
      and/or verify are desired.

To run the example test cases:

    $ sudo -E ./tdc.py -f creating-testcases/example.json -l
    1f: (example) simple test to test framework
    2f: (example) simple test, no need for verify
    3f: (example) simple test, no need for setup or teardown (or verify)
    $ sudo -E ./tdc.py -f creating-testcases/example.json
    Test 1f: simple test to test framework
    Test 2f: simple test, no need for verify
    Test 3f: simple test, no need for setup or teardown (or verify)
    All test results:

    1..3
    ok 1 1f simple test to test framework
    ok 2 2f simple test, no need for verify
    ok 3 3f simple test, no need for setup or teardown (or verify)

    $

Signed-off-by: Brenda J. Butler <bjb@mojatatu.com>
Acked-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'l2tp-remove-unused-code'
David S. Miller [Wed, 1 Nov 2017 01:57:24 +0000 (10:57 +0900)]
Merge branch 'l2tp-remove-unused-code'

Guillaume Nault says:

====================
l2tp: remove unused code

Patch #1 removes the ref/deref mechanism that was originally used to
prevent ppp pseudowires from dropping their sockets. This mechanism
was error prone and isn't used anymore.

Patch #2 removes some module specific refcount debugging.
Patches #3 and #4 take care of some dead code.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agol2tp: remove field 'dev' from struct l2tp_eth
Guillaume Nault [Tue, 31 Oct 2017 16:36:46 +0000 (17:36 +0100)]
l2tp: remove field 'dev' from struct l2tp_eth

This field has never been used.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agol2tp: remove l2tp_tunnel_count and l2tp_session_count
Guillaume Nault [Tue, 31 Oct 2017 16:36:45 +0000 (17:36 +0100)]
l2tp: remove l2tp_tunnel_count and l2tp_session_count

These variables have never been used.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agol2tp: remove l2tp specific refcount debugging
Guillaume Nault [Tue, 31 Oct 2017 16:36:44 +0000 (17:36 +0100)]
l2tp: remove l2tp specific refcount debugging

With conversion to refcount_t, such manual debugging code doesn't make
sense anymore.
The tunnel part was already dropped by
54652eb12c1b ("l2tp: hold tunnel while looking up sessions in l2tp_netlink").

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agol2tp: remove ->ref() and ->deref()
Guillaume Nault [Tue, 31 Oct 2017 16:36:42 +0000 (17:36 +0100)]
l2tp: remove ->ref() and ->deref()

The ->ref() and ->deref() callbacks are unused since PPP stopped using
them in ee40fb2e1eb5 ("l2tp: protect sock pointer of struct pppol2tp_session with RCU").

We can thus remove them from struct l2tp_session and drop the do_ref
parameter of l2tp_session_get*().

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet/mlx5e: Switch channels counters to use stats group API
Kamal Heib [Wed, 23 Aug 2017 12:08:19 +0000 (15:08 +0300)]
net/mlx5e: Switch channels counters to use stats group API

Switch the channels counters to use the new stats group API.

Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Switch ipsec counters to use stats group API
Kamal Heib [Wed, 23 Aug 2017 12:07:20 +0000 (15:07 +0300)]
net/mlx5e: Switch ipsec counters to use stats group API

Switch the ipsec counters to use the new stats group API.

Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Switch pme counters to use stats group API
Kamal Heib [Wed, 23 Aug 2017 12:05:58 +0000 (15:05 +0300)]
net/mlx5e: Switch pme counters to use stats group API

Switch the pme counters to use the new stats group API.

Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Switch per prio pfc counters to use stats group API
Kamal Heib [Wed, 23 Aug 2017 12:04:47 +0000 (15:04 +0300)]
net/mlx5e: Switch per prio pfc counters to use stats group API

Switch the per prio pfc counters to use the new stats group API.

Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Switch per prio traffic counters to use stats group API
Kamal Heib [Wed, 23 Aug 2017 12:03:03 +0000 (15:03 +0300)]
net/mlx5e: Switch per prio traffic counters to use stats group API

Switch the per prio traffic counters to use the new stats group API.

Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Switch pcie counters to use stats group API
Kamal Heib [Wed, 23 Aug 2017 12:01:58 +0000 (15:01 +0300)]
net/mlx5e: Switch pcie counters to use stats group API

Switch the pcie counters to use the new stats group API.

Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Switch ethernet extended counters to use stats group API
Kamal Heib [Wed, 23 Aug 2017 12:00:40 +0000 (15:00 +0300)]
net/mlx5e: Switch ethernet extended counters to use stats group API

Switch the ethernet extended counters to use the new stats group API.

Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
7 years agonet/mlx5e: Switch physical statistical counters to use stats group API
Kamal Heib [Wed, 23 Aug 2017 11:58:47 +0000 (14:58 +0300)]
net/mlx5e: Switch physical statistical counters to use stats group API

Switch the physical statistical counters to use the new stats group API.

Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>