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616785 commits

Author SHA1 Message Date
David S. Miller
0ae940c7a7 Merge branch 'mv88e6xxx-fix-wait'
Andrew Lunn says:

====================
Fix mv88e6xxx wait function

The mv88e6xxx wait function can be upset of the system has nots of
other things to do and a sleep takes a lot longer than expected. Fix
this be using a fixed number of iterations, rather than a fixed
walkclock time.

Witht that change made, it is possible to consoliate another
wait function.

A wait actually timing out should not happen and when it does, it
means something serious is wrong. Make sure an error is logged,
since not all callers will log an error.
====================

Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:14:08 -07:00
Andrew Lunn
30853553c0 dsa: mv88e6xxx: Make mv88e6xxx_wait() timeout verbose
When mv88e6xxx_wait() returns a timeout, something bad has
happened. Make sure it is noticed by logging an error.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:14:07 -07:00
Andrew Lunn
0f02b4f752 dsa: mv88e6xxx: Use mv88e6xx_wait in mv88e6xxx_update()
Now that mv88e6xx_wait() iterated on a counter than a fixed time
interval, it implements the same mechanism as mv88e6xxx_update() uses.
So use it in mv88e6xx_wait().

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:14:07 -07:00
Andrew Lunn
6441e6695a dsa: mv88e6xxx: Timeout based on iterations, not time
The mv88e6xxx driver times out operations on the switch based on
looping until an elapsed wall clock time is reached. However, if
usleep_range() sleeps much longer than expected, it could timeout with
an error without actually checking to see if the devices has completed
the operation. So replace the elapsed time with a fixed upper bound on
the number of loops.

Testing on various switches has shown that switches takes either 0 or
1 iteration, so a maximum of 16 iterations is a safe limit.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:14:07 -07:00
David S. Miller
7a7e780cd7 Merge branch 'phy-next'
Andrew Lunn says:

====================
PHY Kconfig and Makefile cleanup

The Ethernet PHY directory has slowly been getting more entries.
Split the entries in the Makefile and Kconfig into MDIO bus drivers
and PHYs. Within these two groups, sort them. This should reduce merge
conflicts and aid finding what one searches for.

The Kconfig text contains redundant "Driver for" and "Support for"
which add little value, make the vendor less obvious, and defeat the
shortcut key in the menu. Remove such text.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:11:50 -07:00
Andrew Lunn
97c84389ac net: phy: Kconfig: Remove redundant "Support for"
Remove the redundant "Support for" and "Drivers for" from the Kconfig
short description. This makes the manufacture much more prominent in
the list and makes the shortcut keys useful.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:11:50 -07:00
Andrew Lunn
d75b4a22b2 net: phy: Sort Makefile and Kconfig
Sort the files to reduce merge conflicts and to make it easier to find
drivers by name. Also separate the MDIO bus drivers from the PHY
drivers, again to help find what you need.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:11:50 -07:00
Eric Dumazet
d985d15151 net: ipv4: fix sparse error in fib_good_nh()
Fixes following sparse errors :

net/ipv4/fib_semantics.c:1579:61: warning: incorrect type in argument 2
(different base types)
net/ipv4/fib_semantics.c:1579:61:    expected unsigned int [unsigned]
[usertype] key
net/ipv4/fib_semantics.c:1579:61:    got restricted __be32 const
[usertype] nh_gw

Fixes: a6db4494d2 ("net: ipv4: Consider failed nexthops in multipath routes")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:07:30 -07:00
Eric Dumazet
217375a0c6 udp: include addrconf.h
Include ipv4_rcv_saddr_equal() definition to avoid this sparse error :

net/ipv4/udp.c:362:5: warning: symbol 'ipv4_rcv_saddr_equal' was not
declared. Should it be static?

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:06:58 -07:00
Eric Dumazet
b6c6b645d2 tcp: md5: remove tcp_md5_hash_header()
After commit 19689e38ec ("tcp: md5: use kmalloc() backed scratch
areas") this function is no longer used.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:06:58 -07:00
Thomas Falcon
dfad09a6da ibmvnic: Handle backing device failover and reinitialization
An upcoming feature of IBM VNIC protocol is the ability to configure
redundant backing devices for a VNIC client. In case of a failure
on the current backing device, the driver will receive a signal
from the hypervisor indicating that a failover will occur. The driver
will then wait for a message from the backing device before
establishing a new connection.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 17:02:09 -07:00
oulijun
e018068812 net: hns: Add reset function support for RoCE driver
It added reset function for RoCE driver. RoCE is a feature of hns.
In hip06 SoC, in RoCE reset process, it's needed to configure dsaf
channel reset, port and sl map info. Reset function of RoCE is
located in dsaf module, we only call it in RoCE driver when needed.

This patch is used to fix the conflict, please refer to this link:
  https://www.spinics.net/lists/linux-rdma/msg39114.html

Signed-off-by: Wei Hu <xavier.huwei@huawei.com>
Signed-off-by: Nenglong Zhao <zhaonenglong@hisilicon.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Sheng Li <lisheng011@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 16:58:33 -07:00
David S. Miller
a68d53988b Merge branch 'rhash-raw-walkers-remove-part-1'
Herbert Xu says:

====================
rhashtable: Get rid of raw table walkers part 1

This series starts the process of getting rid of all raw rhashtable
walkers (e.g., using any of the rht_for_each helpers) from the
kernel.

We need to do this before I can fix the resize kmalloc failure issue
by using multi-layered tables.

We should do this anyway because almost all raw table walkers are
already buggy in that they don't handle multiple rhashtables during
a resize.
====================

Dave/Tomas, please keep an eye out for any new patches that try
to introduce raw table walkers and nack them.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 14:40:25 -07:00
Herbert Xu
ad20207432 netlink: Use rhashtable walk interface in diag dump
This patch converts the diag dumping code to use the rhashtable
walk code instead of going through rhashtable by hand.  The lock
nl_table_lock is now only taken while we process the multicast
list as it's not needed for the rhashtable walk.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 14:40:25 -07:00
Herbert Xu
39ec406d12 MAINTAINERS: Add extra rhashtable maintainer
As I'm working actively on rhashtable it helps if people CCed me
when they work on in.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 14:40:24 -07:00
Herbert Xu
246779dd09 rhashtable: Remove GFP flag from rhashtable_walk_init
The commit 8f6fd83c6c ("rhashtable:
accept GFP flags in rhashtable_walk_init") added a GFP flag argument
to rhashtable_walk_init because some users wish to use the walker
in an unsleepable context.

In fact we don't need to allocate memory in rhashtable_walk_init
at all.  The walker is always paired with an iterator so we could
just stash ourselves there.

This patch does that by introducing a new enter function to replace
the existing init function.  This way we don't have to churn all
the existing users again.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 14:40:24 -07:00
David S. Miller
363dc396a5 Merge branch 'cxgb-crypto'
Hariprasad Shenai says:

====================
crypto/chcr: Add support for Chelsio Crypto Driver

This patch series adds support for Chelsio Crypto driver.

The patch series has been created against net-next tree and includes
patches for Chelsio Low Level Driver(cxgb4) and adds the new crypto
Upper Layer Driver(chcr) under a new directory drivers/crypto/chelsio.

Patch 1/4 ("cxgb4: Add support for dynamic allocation of resources for
ULD") adds support for dynamic allocation of resources for ULD. The
objective of this patch is to provide generic interface for upper layer
drivers to allocate and initialize hardware resources.

The present cxgb4 (network driver) apart from network functionality, also
initializes hardware and thus acts as lower layer driver for other drivers
to use hardware resources. Thus it acts as both a Low level driver for
Upper layer driver's like iw_cxgb4, cxgb4i and cxgb4it and a Network Driver.

Right now the allocation of resources for Upper layer driver's is done
statically. Patch 1/4 adds a new infrastructure for dynamic allocation of
resources. cxgb4 will read the hardware capability through firmware and
allocate/free the queues for Upper layer drivers when the respective
driver's are loaded and freed when unloaded.

Patch 2/3, 3/4 and 4/4 adds support for Chelsio Crypto Driver. The Crypto
driver will act as another ULD on top of cxgb4.

In this patch series, the ULD API framework is used only by crypto and other
ULD's will make use of it in the next series.

This patch series is only for review, if this looks ok we will test it
thoroughly and send request for merge.

We have included all the maintainers of respective drivers. Kindly
review the changes and provide feedback on the same.

V3: - Removed crypto queues from cxgb4 and added support for dynamic
      allocation of resources for Upper layer drivers
    - Dependency fix in Kconfig.

V2: - Some residual code cleanup
    - Adds pr_fmt with chcr (KBUILD_MODNAME) added
    - Changes var name to accomodate them <80 columns in the chcr_register_alg
    - Support for printing the crypto queue stats
    - Fix compile warnings reported by kbuild bot for certain architectures
    - Dependency fix in Kconfig.
    - If the request has the MAY_BACKLOG bit set and hardware queue is
      full the request is queued up else -EBUSY is returned to throttle
      the user. The queue when executed and processed returns -EINPROGRESS
      in completion.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 00:00:45 -07:00
Hariprasad Shenai
02038fd664 crypto: Added Chelsio Menu to the Kconfig file
Adds the config entry for the Chelsio Crypto Driver, Makefile changes
for the same.

Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19 00:00:37 -07:00
Hariprasad Shenai
324429d741 chcr: Support for Chelsio's Crypto Hardware
The Chelsio's Crypto Hardware can perform the following operations:
SHA1, SHA224, SHA256, SHA384 and SHA512, HMAC(SHA1), HMAC(SHA224),
HMAC(SHA256), HMAC(SHA384), HAMC(SHA512), AES-128-CBC, AES-192-CBC,
AES-256-CBC, AES-128-XTS, AES-256-XTS

This patch implements the driver for above mentioned features. This
driver is an Upper Layer Driver which is attached to Chelsio's LLD
(cxgb4) and uses the queue allocated by the LLD for sending the crypto
requests to the Hardware and receiving the responses from it.

The crypto operations can be performed by Chelsio's hardware from the
userspace applications and/or from within the kernel space using the
kernel's crypto API.

The above mentioned crypto features have been tested using kernel's
tests mentioned in testmgr.h. They also have been tested from user
space using libkcapi and Openssl.

Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:59:30 -07:00
Hariprasad Shenai
d6657781b5 cxgb4: Register changes and fw defines for crypto
Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:58:28 -07:00
Hariprasad Shenai
94cdb8bb99 cxgb4: Add support for dynamic allocation of resources for ULD
Add a new commmon infrastructure to allocate reosurces dynamically to
Upper layer driver's(ULD) when they register with cxgb4 driver and free
them during unregistering. All the queues and the interrupts for
them will be allocated during ULD probe only and freed during remove.

Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:58:28 -07:00
LABBE Corentin
b65b24d42f atm: fore200e: Do not drop const qualifier
The data member of structure firmware is const and this constness is
dropped by some cast.
This patch add some const for keeping the const information.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:46:42 -07:00
David S. Miller
f1c89c033f Merge branch 'bpf-next'
Daniel Borkmann says:

====================
BPF helper improvements and cleanups

This set adds various improvements to BPF helpers, a cleanup to use
skb_pkt_type_ok() helper, addition of bpf_skb_change_tail(), a follow
up for event output helper and removing ifdefs around the cgroupv2
helper bits. For details please see individual patches.

The set is based against net-next tree, but requires a merge of net
into net-next first.

Thanks a lot!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:38:17 -07:00
Daniel Borkmann
54fd9c2dff bpf: get rid of cgroup helper related ifdefs
As recently discussed during the task_under_cgroup_hierarchy() addition,
we should get rid of the ifdefs surrounding the bpf_skb_under_cgroup()
helper. If related functionality is not built-in, the helper cannot be
used anyway, which is also in line with what we do for all other helpers.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:38:16 -07:00
Daniel Borkmann
4de1696952 bpf: enable event output helper also for xdp types
Follow-up to 555c8a8623 ("bpf: avoid stack copy and use skb ctx for
event output") for also adding the event output helper for XDP typed
programs. The event output helper has been very useful in particular for
debugging or event notification purposes, since it's much faster and
flexible than regular trace printk due to programmatically being able to
attach meta data. Same flags structure applies as with tc BPF programs.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:38:16 -07:00
Daniel Borkmann
5293efe62d bpf: add bpf_skb_change_tail helper
This work adds a bpf_skb_change_tail() helper for tc BPF programs. The
basic idea is to expand or shrink the skb in a controlled manner. The
eBPF program can then rewrite the rest via helpers like bpf_skb_store_bytes(),
bpf_lX_csum_replace() and others rather than passing a raw buffer for
writing here.

bpf_skb_change_tail() is really a slow path helper and intended for
replies with f.e. ICMP control messages. Concept is similar to other
helpers like bpf_skb_change_proto() helper to keep the helper without
protocol specifics and let the BPF program mangle the remaining parts.
A flags field has been added and is reserved for now should we extend
the helper in future.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:38:16 -07:00
Daniel Borkmann
45c7fffaf7 bpf: use skb_pkt_type_ok helper in bpf_skb_change_type
Since we have a skb_pkt_type_ok() helper for checking the type before
mangling, make use of it instead of open coding. Follow-up to commit
8b10cab64c ("net: simplify and make pkt_type_ok() available for other
users") that came in after d2485c4242 ("bpf: add bpf_skb_change_type
helper").

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:38:16 -07:00
Richard Alpe
b34040227b tipc: add peer removal functionality
Add TIPC_NL_PEER_REMOVE netlink command. This command can remove
an offline peer node from the internal data structures.

This will be supported by the tipc user space tool in iproute2.

Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:36:07 -07:00
Eric Dumazet
36a6503fed tcp: refine tcp_prune_ofo_queue() to not drop all packets
Over the years, TCP BDP has increased a lot, and is typically
in the order of ~10 Mbytes with help of clever Congestion Control
modules.

In presence of packet losses, TCP stores incoming packets into an out of
order queue, and number of skbs sitting there waiting for the missing
packets to be received can match the BDP (~10 Mbytes)

In some cases, TCP needs to make room for incoming skbs, and current
strategy can simply remove all skbs in the out of order queue as a last
resort, incurring a huge penalty, both for receiver and sender.

Unfortunately these 'last resort events' are quite frequent, forcing
sender to send all packets again, stalling the flow and wasting a lot of
resources.

This patch cleans only a part of the out of order queue in order
to meet the memory constraints.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: C. Stephen Gun <csg@google.com>
Cc: Van Jacobson <vanj@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:36:07 -07:00
Rafał Miłecki
e2d8f646c7 net: bgmac: make it clear when setting interface type to RMII
It doesn't really change anything as BGMAC_CHIPCTL_1_IF_TYPE_RMII is
equal to 0. It make code a bit clener, so far when reading it one could
think we forgot to set a proper mode. It also keeps this mode code in
sync with other ones.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:36:07 -07:00
Rafał Miłecki
1cb94db3d1 net: bgmac: support Ethernet core on BCM53573 SoCs
BCM53573 is a new series of Broadcom's SoCs. It's based on ARM and can
be found in two packages (versions): BCM53573 and BCM47189. It shares
some code with the Northstar family, but also requires some new quirks.

First of all there can be up to 2 Ethernet cores on this SoC. If that is
the case, they are connected to two different switch ports allowing some
more complex/optimized setups. It seems the second unit doesn't come
fully configured and requires some IRQ quirk.

Other than that only the first core is connected to the PHY. For the
second one we have to register fixed PHY (similarly to the Northstar),
otherwise generic PHY driver would get some invalid info.

This has been successfully tested on Tenda AC9 (BCM47189B0).

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:36:07 -07:00
Colin Ian King
6b2a314f72 net: ethernet: nuvoton: fix spelling mistake: "aligment" -> "alignment"
trivial fix to spelling mistake in dev_err message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:29:43 -07:00
Paul Durrant
c0c64c1523 xen-netback: create a debugfs node for hash information
It is useful to be able to see the hash configuration when running tests.
This patch adds a debugfs node for that purpose.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:29:09 -07:00
Edward Cree
c7b256f998 sfc: avoid division by zero
The division is already being done properly in efx_ef10_get_timer_config
which returns zero-on-success, unlike the old efx_ef10_get_sysclk_freq.

Fixes: d95e329a55 ("sfc: get timer configuration from adapter")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:28:22 -07:00
Eric Dumazet
dca0aaf847 tcp: defer sacked assignment
While chasing tcp_xmit_retransmit_queue() kasan issue, I found
that we could avoid reading sacked field of skb that we wont send,
possibly removing one cache line miss.

Very minor change in slow path, but why not ? ;)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:27:27 -07:00
David S. Miller
53e43f3905 Merge branch 'bridge-vlan-stats-with-flags'
Nikolay Aleksandrov says:

====================
net: bridge: export vlan stats per-port with flags

This set adds the ability to export vlan stats per-port. Patch 01 makes
that possible by consolidating the bridge and port linkxstats calls. Then
patch 02 allows to dump the vlan entry flags in order to be able to
distinguish between bridge and port vlan entries when dumping the master
device vlan stats. That is needed because that call was implemented when
the stats API didn't have slave dumping capabilities and it dumps all vlan
stats (for both bridge and port entries). We also need it in order to print
the vlan flags when dumping the stats.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:18:42 -07:00
Nikolay Aleksandrov
61ba1a2da9 net: bridge: export vlan flags with the stats
Use one of the vlan xstats padding fields to export the vlan flags. This is
needed in order to be able to distinguish between master (bridge) and port
vlan entries in user-space when dumping the bridge vlan stats.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:18:42 -07:00
Nikolay Aleksandrov
d5ff8c41b5 net: bridge: consolidate bridge and port linkxstats calls
In the bridge driver we usually have the same function working for both
port and bridge. In order to follow that logic and also avoid code
duplication, consolidate the bridge_ and brport_ linkxstats calls into
one since they share most of their code. As a side effect this allows us
to dump the vlan stats also via the slave call which is in preparation for
the upcoming per-port vlan stats and vlan flag dumping.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:18:42 -07:00
David S. Miller
fb36938de4 Merge branch 'flow-dissector-vlan-tag'
Hadar Hen Zion says:

====================
net_sched, flow_dissector, flower: Introduce vlan tag support

This patchset introduce vlan tag support to the flower classifier and the flow
dissector. In addition to adding vlan priority to act vlan.

The first 2 patches are dealing with flow-dissector:
 - The first patch is a fix, in case the vlan was already stripped from the
   skb, take it from skb->vlan_tci.
 - The second patch adds support for vlan priority.

The next 2 patches are dealing with flower:
 - The first patch is a fix, sets flow dissector 'used_keys' according to the
   mask value of each key.
 - The secound patch adds vlan tag support to the flower classifier, user space
   patches will be sent later to complete it.

The last patch adds vlan priority to act vlan since only vlan id is currently supported.

Changes from V1:
 - A new patch was added to this series "net_sched: flower: Avoid dissection of unmasked keys"
 - Adding u16 padding to struct flow_dissector_key_vlan
 - change flow_label field in struct flow_dissector_key_tags form 20 bits field to u32
 - Remove 'if (v->tcfv_push_prio)' check from tcf_vlan_dump function
 - Add support to un-stripped vlan skb and skb with multipale vlans in __skb_flow_dissect
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:13:14 -07:00
Hadar Hen Zion
956af37102 net_sched: act_vlan: Add priority option
The current vlan push action supports only vid and protocol options.
Add priority option.

Example script that adds vlan push action with vid and
priority:

tc filter add dev veth0 protocol ip parent ffff: \
	   flower \
	   	indev veth0 \
	   action vlan push id 100 priority 5

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:13:14 -07:00
Hadar Hen Zion
9399ae9a6c net_sched: flower: Add vlan support
Enhance flower to support 802.1Q vlan protocol classification.
Currently, the supported fields are vlan_id and vlan_priority.

Example:

	# add a flower filter with vlan id and priority classification
	tc filter add dev ens4f0 protocol 802.1Q parent ffff: \
		flower \
		indev ens4f0 \
		vlan_ethtype ipv4 \
		vlan_id 100 \
		vlan_prio 3 \
	action vlan pop

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:13:14 -07:00
Hadar Hen Zion
339ba878cf net_sched: flower: Avoid dissection of unmasked keys
The current flower implementation checks the mask range and set all the
keys included in that range as "used_keys", even if a specific key in
the range has a zero mask.

This behavior can cause a false positive return value of
dissector_uses_key function and unnecessary dissection in
__skb_flow_dissect.

This patch checks explicitly the mask of each key and "used_keys" will
be set accordingly.

Fixes: 77b9900ef5 ('tc: introduce Flower classifier')
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:13:13 -07:00
Hadar Hen Zion
f6a6692769 flow_dissector: Get vlan priority in addition to vlan id
Add vlan priority check to the flow dissector by adding new flow
dissector struct, flow_dissector_key_vlan which includes vlan tag
fields.

vlan_id and flow_label fields were under the same struct
(flow_dissector_key_tags). It was a convenient setting since struct
flow_dissector_key_tags is used by struct flow_keys and by setting
vlan_id and flow_label under the same struct, we get precisely 24 or 48
bytes in flow_keys from flow_dissector_key_basic.

Now, when adding vlan priority support, the code will be cleaner if
flow_label and vlan tag won't be under the same struct anymore.

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:13:13 -07:00
Hadar Hen Zion
d5709f7ab7 flow_dissector: For stripped vlan, get vlan info from skb->vlan_tci
Early in the datapath skb_vlan_untag function is called, stripped
the vlan from the skb and set skb->vlan_tci and skb->vlan_proto fields.

The current dissection doesn't handle stripped vlan packets correctly.
In some flows, vlan doesn't exist in skb->data anymore when applying
flow dissection on the skb, fix that.

In case vlan info wasn't stripped before applying flow_dissector (RPS
flow for example), or in case of skb with multiple vlans (e.g. 802.1ad),
get the vlan info from skb->data. The flow_dissector correctly skips
any number of vlans and stores only the first level vlan.

Fixes: 0744dd00c1 ('net: introduce skb_flow_dissect()')
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:13:13 -07:00
David S. Miller
92bcdcc672 Merge branch 'qed-link-fixes'
Yuval Mintz says:

====================
qed*: Fix ethtool issues relating to link

This series addresses two issues that were introduced when adding
support for ethtool's link_ksettings support - the first fixes a
regression and second incorrect functionallity in the submission.

Although these are fixes, as the feature currently exists only in
'next-next' I'm aiming them for it.

Dave, please consider applying this series to 'net-next'.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:04:40 -07:00
Yuval Mintz
16d5946a7c qede: Fix forcing high speeds
While '0xdead' and '0xbeef' are "great" values, we should
use the correct SPEED_* values instead.

Fixes: 054c67d1c8 ("qed*: Add support for ethtool link_ksettings callbacks")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:04:40 -07:00
Yuval Mintz
d194fd265e qed*: Fix pause setting
When moving into using ethtool's link_ksetting, qed started
supplying its own bitmask of speed/capabilities, but qede
is still checking for the SUPPORTED value to determine whether
it supports pause.

Fixes: 054c67d1c8 ("qed*: Add support for ethtool link_ksettings callbacks")
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:04:40 -07:00
David S. Miller
a5c8818200 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
1GbE Intel Wired LAN Driver Updates 2016-08-18

This series contains updates to igb only.

Gangfeng Huang provides all the changes in the series to update the
igb driver to support advanced receive side filters that direct receive
packets by flows to different hardware queues. This enables a tight
control on routing a flow in the platform.  First patch allows for
receive network flow classification to insert and remove receive filters
by ethtool.  Second and third patches add the ability to insert and
remove ethertype and VLAN priority filters by ethtool.

Last patch just fixes an error message to return "Not supported" versus
"Unknown error 524".
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18 23:02:50 -07:00
Gangfeng Huang
54be81328c igb: fix error code in igb_add_ethtool_nfc_entry()
Use error "rmgr: Cannot insert RX class rule: Operation not supported" is
more meaningful than "rmgr: Cannot insert RX class rule: Unknown error 524"

Signed-off-by: Gangfeng Huang <gangfeng.huang@ni.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-18 22:27:48 -07:00
Gangfeng Huang
7a277a963b igb: support RX flow classification by VLAN priority
This patch is meant to allow for RX network flow classification to insert
and remove VLAN priority filter by ethtool

Example:
Add an VLAN priority filter:
$ ethtool -N eth0 flow-type ether vlan 0x6000 vlan-mask 0x1FFF action 2 loc 1

Show all filters:
$ ethtool -n eth0
4 RX rings available
Total 1 rules

Filter: 1
	Flow Type: Raw Ethernet
	Src MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF
	Dest MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF
	Ethertype: 0x0 mask: 0xFFFF
	VLAN EtherType: 0x0 mask: 0xffff
	VLAN: 0x6000 mask: 0x1fff
	User-defined: 0x0 mask: 0xffffffffffffffff
	Action: Direct to queue 2

Delete the filter by location:
$ ethtool -N delete 1

Signed-off-by: Ruhao Gao <ruhao.gao@ni.com>
Signed-off-by: Gangfeng Huang <gangfeng.huang@ni.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-18 22:27:48 -07:00