platform/kernel/linux-rpi.git
7 years agonfp: allow application firmware to limit number of SR-IOV VFs
Jakub Kicinski [Sun, 19 Feb 2017 19:58:14 +0000 (11:58 -0800)]
nfp: allow application firmware to limit number of SR-IOV VFs

Some application firmware projects may choose to limit the number
of VFs available below what is specified in PCI capability to be
able to reuse the PCIe interface resources.  There may also be
projects which use cases don't require SR-IOV support at all and
therefore don't want to spend time implementing/testing it.

Check nfd_vf_cfg_max_vfs firmware symbol to see if application
firmware is reporting how many VFs it supports.  This mechanism
is an opt-in, if symbol is not present we will only look at the
PCI capability values.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: return nfp_rtsym_read_le() errors correctly
Jakub Kicinski [Sun, 19 Feb 2017 19:58:13 +0000 (11:58 -0800)]
nfp: return nfp_rtsym_read_le() errors correctly

nfp_rtsym_read_le() has an out parameter for error codes.
We have to use that instead of returning errors directly.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add very basic access to NSP logs
Jakub Kicinski [Sun, 19 Feb 2017 19:58:12 +0000 (11:58 -0800)]
nfp: add very basic access to NSP logs

Allow dumping "arm.diag" resource with ethtool -w.  This resource
should contain a text log of the NSP (control processor) application.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: report NSP ABI version in ethtool FW version
Jakub Kicinski [Sun, 19 Feb 2017 19:58:11 +0000 (11:58 -0800)]
nfp: report NSP ABI version in ethtool FW version

ethtool_drvinfo->fw_version can cantain multiple FW strings.
We already report NFD ABI version there, add NSP ABI version
if available (i.e. on PF) with 'sp:' prefix.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: store NSP ABI version in state structure
Jakub Kicinski [Sun, 19 Feb 2017 19:58:10 +0000 (11:58 -0800)]
nfp: store NSP ABI version in state structure

We read the status register on each NSP open, we can store the NSP
ABI version in the state structure so that we don't have to read
it again.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: report manufacturing info on load
Jakub Kicinski [Sun, 19 Feb 2017 19:58:09 +0000 (11:58 -0800)]
nfp: report manufacturing info on load

Report card manufacturing information when driver loads.  These
identify the version of the board and its subcomponents.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: refactor NSP initialization and add error message
Jakub Kicinski [Sun, 19 Feb 2017 19:58:08 +0000 (11:58 -0800)]
nfp: refactor NSP initialization and add error message

When acquiring NSP communication resource fails user is left with
"probe failed with error -2" PCI code message but no info on what
caused the problem.  Some development boards may not have NSP FW
in the flash image.  Help users with a more verbouse message.

While at it move the whole NSP init to a separate function to keep
.probe() callback nice and simple.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.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 [Mon, 20 Feb 2017 16:15:11 +0000 (11:15 -0500)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2017-02-19

Here's a set of Bluetooth patches for the 4.11 kernel:

 - New USB IDs to the btusb driver
 - Race fix in btmrvl driver
 - Added out-of-band wakeup support to the btusb driver
 - NULL dereference fix to bt_sock_recvmsg

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

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mpls: Add support for netconf
David Ahern [Mon, 20 Feb 2017 16:03:30 +0000 (08:03 -0800)]
net: mpls: Add support for netconf

Add netconf support to MPLS. Allows userpsace to learn and be notified
of changes to 'input' enable setting per interface.

Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoqlcnic: Fix a memory leak in error handling path
Christophe Jaillet [Sun, 19 Feb 2017 09:35:05 +0000 (10:35 +0100)]
qlcnic: Fix a memory leak in error handling path

If 'dma_alloc_coherent()' fails, we should release resources allocated so
far, just as done in all other cases in this function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Fix a memory leak in error handling path
Christophe Jaillet [Sun, 19 Feb 2017 09:19:57 +0000 (10:19 +0100)]
net: mvpp2: Fix a memory leak in error handling path

if 'devm_kzalloc()' fails, we should release resources allocated so far,
just as done a few lines below.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlx4: reduce OOM risk on arches with large pages
Eric Dumazet [Sat, 18 Feb 2017 18:34:18 +0000 (10:34 -0800)]
mlx4: reduce OOM risk on arches with large pages

Since mlx4 NIC are used on PowerPC with 64K pages, we need to adapt
MLX4_EN_ALLOC_PREFER_ORDER definition.

Otherwise, a fragment sitting in an out of order TCP queue can hold
0.5 Mbytes and it is a serious OOM risk.

Fixes: 51151a16a60f ("mlx4: allow order-0 memory allocations in RX path")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
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 [Mon, 20 Feb 2017 15:29:29 +0000 (10:29 -0500)]
Merge branch '40GbE' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2017-02-18

This series contains updates to i40e and i40evf only.

Alan fixes a bug in which the driver is unable to exit overflow
promiscuous mode after having added "too many" mac filters.  Ractored
the '%*ph' printk format specifier to instead use the print_hex_dump().

Josh adds enabling multicast magic packet wakeup by adding calls to
the mac_address_write admin q function during power down to update the
PRTPM_SAH/SAL registers with the MC_MAG_EN bit.

Jake remove a duplicate call i40e_update_link_info(), since it does not
need to call it twice.  Fixes and issue where we calculating the wrong
switch id on big endian platforms.  Avoided sparse warning, by doing a
typecast to ensure the value is of the type expected by
csum_replace_by_diff().

Mitch fixes a memory leak by freeing resources during i40e_remove().
Cleans up some code confusion by adding a proper code comment.

Carolyn fixes a bug introduced with the addition of the per queue ITR
feature support in ethtool.  Cleans up a duplicate device id from the
PCI table.

Harshitha fixes a bug which causes the 'Link Detected' field in
ethtool to report the correct link status.

Benjamin Poirier from SuSE applies a fix ec13ee80145c ("virtio_net:
 invoke softirqs after __napi_schedule") to i40e driver as well.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoptr_ring: fix race conditions when resizing
Michael S. Tsirkin [Sun, 19 Feb 2017 05:17:17 +0000 (07:17 +0200)]
ptr_ring: fix race conditions when resizing

Resizing currently drops consumer lock.  This can cause entries to be
reordered, which isn't good in itself.  More importantly, consumer can
detect a false ring empty condition and block forever.

Further, nesting of consumer within producer lock is problematic for
tun, since it produces entries in a BH, which causes a lock order
reversal:

       CPU0                    CPU1
       ----                    ----
  consume:
  lock(&(&r->consumer_lock)->rlock);
                               resize:
                               local_irq_disable();
                               lock(&(&r->producer_lock)->rlock);
                               lock(&(&r->consumer_lock)->rlock);
  <Interrupt>
  produce:
  lock(&(&r->producer_lock)->rlock);

To fix, nest producer lock within consumer lock during resize,
and keep consumer lock during the whole swap operation.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: stable@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: qlogic: qla3xxx: use new api ethtool_{get|set}_link_ksettings
Philippe Reynes [Sat, 18 Feb 2017 23:19:04 +0000 (00:19 +0100)]
net: qlogic: qla3xxx: use new api ethtool_{get|set}_link_ksettings

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agofsl/fman: fix spelling mistake in variable name en_tsu_err_exeption
Colin Ian King [Sat, 18 Feb 2017 23:41:46 +0000 (23:41 +0000)]
fsl/fman: fix spelling mistake in variable name en_tsu_err_exeption

trivial fix to spelling mistake, en_tsu_err_exeption should
be en_tsu_err_exception

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'sctp-MSG_MORE'
David S. Miller [Mon, 20 Feb 2017 15:26:10 +0000 (10:26 -0500)]
Merge branch 'sctp-MSG_MORE'

Xin Long says:

====================
sctp: support MSG_MORE flag when sending msg

This patch is to add support for MSG_MORE on sctp. Patch 1/2 is an
improvement ahead of patch 2/2 to solve the close block problem
mentioned in https://patchwork.ozlabs.org/patch/372404/.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: add support for MSG_MORE
Xin Long [Sat, 18 Feb 2017 17:52:46 +0000 (01:52 +0800)]
sctp: add support for MSG_MORE

This patch is to add support for MSG_MORE on sctp.

It adds force_delay in sctp_datamsg to save MSG_MORE, and sets it after
creating datamsg according to the send flag. sctp_packet_can_append_data
then uses it to decide if the chunks of this msg will be sent at once or
delay it.

Note that unlike [1], this patch saves MSG_MORE in datamsg, instead of
in assoc. As sctp enqueues the chunks first, then dequeue them one by
one. If it's saved in assoc,the current msg's send flag (MSG_MORE) may
affect other chunks' bundling.

Since last patch, sctp flush out queue once assoc state falls into
SHUTDOWN_PENDING, the close block problem mentioned in [1] has been
solved as well.

[1] https://patchwork.ozlabs.org/patch/372404/

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: flush out queue once assoc state falls into SHUTDOWN_PENDING
Xin Long [Sat, 18 Feb 2017 17:52:45 +0000 (01:52 +0800)]
sctp: flush out queue once assoc state falls into SHUTDOWN_PENDING

This patch is to flush out queue when assoc state falls into
SHUTDOWN_PENDING if there are still chunks in it, so that the
data can be sent out as soon as possible before sending SHUTDOWN
chunk.

When sctp supports MSG_MORE flag in next patch, this improvement
can also solve the problem that the chunks with MSG_MORE flag
may be stuck in queue when closing an assoc.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoGTP: Add some basic documentation about drivers/net/gtp.c
Harald Welte [Sat, 18 Feb 2017 12:58:00 +0000 (13:58 +0100)]
GTP: Add some basic documentation about drivers/net/gtp.c

In order to clarify what the module actually does, and how to use it,
let's add some basic documentation to the kernel tree, together with
pointers to related specs and projects.

Signed-off-by: Harald Welte <laforge@gnumonks.org>
Acked-by: Andreas Schultz <aschultz@tpip.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: aquantia: remove function aq_ring_tx_deinit
Lino Sanfilippo [Sat, 18 Feb 2017 11:27:12 +0000 (12:27 +0100)]
net: aquantia: remove function aq_ring_tx_deinit

Both functions aq_ring_rx_deinit() and aq_ring_tx_clean() are almost
identical aside from an additional check in the latter.
Move that check from the function into its caller and replace
aq_ring_rx_deinit() with aq_ring_rx_deinit().

By doing this also adjust the functions return value from int to void
since it can never fail.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Tested-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ena: remove superfluous check in ena_remove()
Lino Sanfilippo [Sat, 18 Feb 2017 11:19:41 +0000 (12:19 +0100)]
net: ena: remove superfluous check in ena_remove()

The check in ena_remove() for the pci driver data not being NULL is not
needed, since it is always set in the probe() function. Remove the
superfluous check.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoopenvswitch: Set event bit after initializing labels.
Jarno Rajahalme [Sat, 18 Feb 2017 02:11:58 +0000 (18:11 -0800)]
openvswitch: Set event bit after initializing labels.

Connlabels are included in conntrack netlink event messages only if
the IPCT_LABEL bit is set in the event cache (see
ctnetlink_conntrack_event()).  Set it after initializing labels for a
new connection.

Found upon further system testing, where it was noticed that labels
were missing from the conntrack events.

Fixes: 193e30967897 ("openvswitch: Do not trigger events for unconfirmed connections.")
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'phy-unbind-crash'
David S. Miller [Mon, 20 Feb 2017 15:15:12 +0000 (10:15 -0500)]
Merge branch 'phy-unbind-crash'

Florian Fainelli says:

====================
net: phy: Fix PHY unbind crash

This fixes crashes when the PHY driver is no longer bound to the device.

There is still a fair amount of work to be done to get the unbind -> bind
sequent to result in a functional state, but that will be net-next material.

These two problems existed for as long as PHYLIB as been around.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: phy: Check phydev->drv
Florian Fainelli [Sat, 18 Feb 2017 00:07:34 +0000 (16:07 -0800)]
net: phy: Check phydev->drv

There are number of function calls, originating from user-space,
typically through the Ethernet driver that can make us crash by
dereferencing phydev->drv which will be NULL once we unbind the driver
from the PHY.

There are still functional issues that prevent an unbind then rebind to
work, but these will be addressed separately.

Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: phy: Fix PHY unbind crash
Florian Fainelli [Sat, 18 Feb 2017 00:07:33 +0000 (16:07 -0800)]
net: phy: Fix PHY unbind crash

The PHY library does not deal very well with bind and unbind events. The first
thing we would see is that we were not properly canceling the PHY state machine
workqueue, so we would be crashing while dereferencing phydev->drv since there
is no driver attached anymore.

Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: check duplicate node before inserting a new transport
Xin Long [Fri, 17 Feb 2017 08:35:24 +0000 (16:35 +0800)]
sctp: check duplicate node before inserting a new transport

sctp has changed to use rhlist for transport rhashtable since commit
7fda702f9315 ("sctp: use new rhlist interface on sctp transport
rhashtable").

But rhltable_insert_key doesn't check the duplicate node when inserting
a node, unlike rhashtable_lookup_insert_key. It may cause duplicate
assoc/transport in rhashtable. like:

 client (addr A, B)                 server (addr X, Y)
    connect to X           INIT (1)
                        ------------>
    connect to Y           INIT (2)
                        ------------>
                         INIT_ACK (1)
                        <------------
                         INIT_ACK (2)
                        <------------

After sending INIT (2), one transport will be created and hashed into
rhashtable. But when receiving INIT_ACK (1) and processing the address
params, another transport will be created and hashed into rhashtable
with the same addr Y and EP as the last transport. This will confuse
the assoc/transport's lookup.

This patch is to fix it by returning err if any duplicate node exists
before inserting it.

Fixes: 7fda702f9315 ("sctp: use new rhlist interface on sctp transport rhashtable")
Reported-by: Fabio M. Di Nitto <fdinitto@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoof_mdio: Add "broadcom,bcm5241" to the whitelist.
David Daney [Fri, 17 Feb 2017 20:04:12 +0000 (12:04 -0800)]
of_mdio: Add "broadcom,bcm5241" to the whitelist.

Some Cavium dev boards have firmware which doesn't supply a proper
ethernet-phy-ieee802.3-c22" compatible property.  Restore these boards
to working order by whitelisting this compatible value.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ethernet: stmmac: dwmac-rk: Add RK3328 gmac support
david.wu [Fri, 17 Feb 2017 12:55:11 +0000 (20:55 +0800)]
net: ethernet: stmmac: dwmac-rk: Add RK3328 gmac support

Add constants and callback functions for the dwmac on rk3328 socs.
As can be seen, the base structure is the same, only registers and the
bits in them moved slightly.

Signed-off-by: david.wu <david.wu@rock-chips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: sctp_transport_dst_check should check if transport pmtu is dst mtu
Xin Long [Fri, 17 Feb 2017 08:41:45 +0000 (16:41 +0800)]
sctp: sctp_transport_dst_check should check if transport pmtu is dst mtu

Now when sending a packet, sctp_transport_dst_check will check if dst
is obsolete by calling ipv4/ip6_dst_check. But they return obsolete
only when adding a new cache, after that when the cache's pmtu is
updated again, it will not trigger transport->dst/pmtu's update.

It can be reproduced by reducing route's pmtu twice. At the 1st time
client will add a new cache, and transport->pathmtu gets updated as
sctp_transport_dst_check finds it's obsolete. But at the 2nd time,
cache's mtu is updated, sctp client will never send out any packet,
because transport->pmtu has no chance to update.

This patch is to fix this by also checking if transport pmtu is dst
mtu in sctp_transport_dst_check, so that transport->pmtu can be
updated on time.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'sctp-rcv-side-stream-reconf-ssn-reset-req-chunk'
David S. Miller [Sun, 19 Feb 2017 23:18:01 +0000 (18:18 -0500)]
Merge branch 'sctp-rcv-side-stream-reconf-ssn-reset-req-chunk'

Xin Long says:

====================
sctp: add receiver-side procedures for stream reconf ssn reset request chunk

Patch 3/7 and 4/7 are to implement receiver-side procedures for the
Outgoing and Incoming SSN Reset Request Parameter described in rfc6525
section 5.2.2 and 5.2.3

Patch 1/7 and 2/7 are ahead of them to define some apis.

Patch 5/7-7/7 are to add the process of reconf chunk event in rx path.

Note that with this patchset, asoc->reconf_enable has no chance yet to
be set, until the patch "sctp: add get and set sockopt for reconf_enable"
is applied in the future. As we can not just enable it when sctp is not
capable of processing reconf chunk yet.

v1->v2:
  - re-split the patchset and make sure it has no dead codes for review.
  - rename the titles of the commits and improve some changelogs.
  - drop __packed from some structures in patch 1/7.
  - fix some kbuild warnings in patch 3/7 by initializing str_p = NULL.
  - sctp_chunk_lookup_strreset_param changes to return sctp_paramhdr_t *
    and uses sctp_strreset_tsnreq to access request_seq in patch 3/7.
  - use __u<size> in uapi sctp.h in patch 1/7.
  - do str_list endian conversion when generating stream_reset_event in patch
    2/7.
  - remove str_list endian conversion, pass resp_seq param with network endian
    to lookup_strreset_param in 3/7.
  - move str_list endian conversion out of sctp_make_strreset_req, so that
    sctp_make_strreset_req can be used more conveniently to process inreq in
    patch 4/7.
  - remove sctp_merge_reconf_chunk and not support response with multiparam
    in patch 6/7.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: add reconf chunk event
Xin Long [Fri, 17 Feb 2017 04:45:43 +0000 (12:45 +0800)]
sctp: add reconf chunk event

This patch is to add reconf chunk event based on the sctp event
frame in rx path, it will call sctp_sf_do_reconf to process the
reconf chunk.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: add reconf chunk process
Xin Long [Fri, 17 Feb 2017 04:45:42 +0000 (12:45 +0800)]
sctp: add reconf chunk process

This patch is to add a function to process the incoming reconf chunk,
in which it verifies the chunk, and traverses the param and process
it with the right function one by one.

sctp_sf_do_reconf would be the process function of reconf chunk event.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: add a function to verify the sctp reconf chunk
Xin Long [Fri, 17 Feb 2017 04:45:41 +0000 (12:45 +0800)]
sctp: add a function to verify the sctp reconf chunk

This patch is to add a function sctp_verify_reconf to do some length
check and multi-params check for sctp stream reconf according to rfc6525
section 3.1.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: implement receiver-side procedures for the Incoming SSN Reset Request Parameter
Xin Long [Fri, 17 Feb 2017 04:45:40 +0000 (12:45 +0800)]
sctp: implement receiver-side procedures for the Incoming SSN Reset Request Parameter

This patch is to implement Receiver-Side Procedures for the Incoming
SSN Reset Request Parameter described in rfc6525 section 5.2.3.

It's also to move str_list endian conversion out of sctp_make_strreset_req,
so that sctp_make_strreset_req can be used more conveniently to process
inreq.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: implement receiver-side procedures for the Outgoing SSN Reset Request Parameter
Xin Long [Fri, 17 Feb 2017 04:45:39 +0000 (12:45 +0800)]
sctp: implement receiver-side procedures for the Outgoing SSN Reset Request Parameter

This patch is to implement Receiver-Side Procedures for the Outgoing
SSN Reset Request Parameter described in rfc6525 section 5.2.2.

Note that some checks must be after request_seq check, as even those
checks fail, strreset_inseq still has to be increase by 1.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: add support for generating stream ssn reset event notification
Xin Long [Fri, 17 Feb 2017 04:45:38 +0000 (12:45 +0800)]
sctp: add support for generating stream ssn reset event notification

This patch is to add Stream Reset Event described in rfc6525
section 6.1.1.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: add support for generating stream reconf resp chunk
Xin Long [Fri, 17 Feb 2017 04:45:37 +0000 (12:45 +0800)]
sctp: add support for generating stream reconf resp chunk

This patch is to define Re-configuration Response Parameter described
in rfc6525 section 4.4. As optional fields are only for SSN/TSN Reset
Request Parameter, it uses another function to make that.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agovirtio-net: batch stats updating
Jason Wang [Fri, 17 Feb 2017 03:33:09 +0000 (11:33 +0800)]
virtio-net: batch stats updating

We already have counters for sent/recv packets and sent/recv bytes.
Doing a batched update to reduce the number of
u64_stats_update_begin/end().

Take care not to bother with stats update when called
speculatively.

Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlx4: fix potential divide by 0 in mlx4_en_auto_moderation()
Eric Dumazet [Thu, 16 Feb 2017 23:23:27 +0000 (15:23 -0800)]
mlx4: fix potential divide by 0 in mlx4_en_auto_moderation()

1) In the case where rate == priv->pkt_rate_low == priv->pkt_rate_high,
mlx4_en_auto_moderation() does a divide by zero.

2) We want to properly change the moderation parameters if rx_frames
was changed (like in ethtool -C eth0 rx-frames 16)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agouapi: fix linux/rds.h userspace compilation error
Dmitry V. Levin [Thu, 16 Feb 2017 15:05:45 +0000 (18:05 +0300)]
uapi: fix linux/rds.h userspace compilation error

On the kernel side, sockaddr_storage is #define'd to
__kernel_sockaddr_storage.  Replacing struct sockaddr_storage with
struct __kernel_sockaddr_storage defined by <linux/socket.h> fixes
the following linux/rds.h userspace compilation error:

/usr/include/linux/rds.h:226:26: error: field 'dest_addr' has incomplete type
  struct sockaddr_storage dest_addr;

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agouapi: fix linux/rds.h userspace compilation errors
Dmitry V. Levin [Thu, 16 Feb 2017 15:05:13 +0000 (18:05 +0300)]
uapi: fix linux/rds.h userspace compilation errors

Consistently use types from linux/types.h to fix the following
linux/rds.h userspace compilation errors:

/usr/include/linux/rds.h:106:2: error: unknown type name 'uint8_t'
  uint8_t name[32];
/usr/include/linux/rds.h:107:2: error: unknown type name 'uint64_t'
  uint64_t value;
/usr/include/linux/rds.h:117:2: error: unknown type name 'uint64_t'
  uint64_t next_tx_seq;
/usr/include/linux/rds.h:118:2: error: unknown type name 'uint64_t'
  uint64_t next_rx_seq;
/usr/include/linux/rds.h:121:2: error: unknown type name 'uint8_t'
  uint8_t transport[TRANSNAMSIZ];  /* null term ascii */
/usr/include/linux/rds.h:122:2: error: unknown type name 'uint8_t'
  uint8_t flags;
/usr/include/linux/rds.h:129:2: error: unknown type name 'uint64_t'
  uint64_t seq;
/usr/include/linux/rds.h:130:2: error: unknown type name 'uint32_t'
  uint32_t len;
/usr/include/linux/rds.h:135:2: error: unknown type name 'uint8_t'
  uint8_t flags;
/usr/include/linux/rds.h:139:2: error: unknown type name 'uint32_t'
  uint32_t sndbuf;
/usr/include/linux/rds.h:144:2: error: unknown type name 'uint32_t'
  uint32_t rcvbuf;
/usr/include/linux/rds.h:145:2: error: unknown type name 'uint64_t'
  uint64_t inum;
/usr/include/linux/rds.h:153:2: error: unknown type name 'uint64_t'
  uint64_t       hdr_rem;
/usr/include/linux/rds.h:154:2: error: unknown type name 'uint64_t'
  uint64_t       data_rem;
/usr/include/linux/rds.h:155:2: error: unknown type name 'uint32_t'
  uint32_t       last_sent_nxt;
/usr/include/linux/rds.h:156:2: error: unknown type name 'uint32_t'
  uint32_t       last_expected_una;
/usr/include/linux/rds.h:157:2: error: unknown type name 'uint32_t'
  uint32_t       last_seen_una;
/usr/include/linux/rds.h:164:2: error: unknown type name 'uint8_t'
  uint8_t  src_gid[RDS_IB_GID_LEN];
/usr/include/linux/rds.h:165:2: error: unknown type name 'uint8_t'
  uint8_t  dst_gid[RDS_IB_GID_LEN];
/usr/include/linux/rds.h:167:2: error: unknown type name 'uint32_t'
  uint32_t max_send_wr;
/usr/include/linux/rds.h:168:2: error: unknown type name 'uint32_t'
  uint32_t max_recv_wr;
/usr/include/linux/rds.h:169:2: error: unknown type name 'uint32_t'
  uint32_t max_send_sge;
/usr/include/linux/rds.h:170:2: error: unknown type name 'uint32_t'
  uint32_t rdma_mr_max;
/usr/include/linux/rds.h:171:2: error: unknown type name 'uint32_t'
  uint32_t rdma_mr_size;
/usr/include/linux/rds.h:212:9: error: unknown type name 'uint64_t'
 typedef uint64_t rds_rdma_cookie_t;
/usr/include/linux/rds.h:215:2: error: unknown type name 'uint64_t'
  uint64_t addr;
/usr/include/linux/rds.h:216:2: error: unknown type name 'uint64_t'
  uint64_t bytes;
/usr/include/linux/rds.h:221:2: error: unknown type name 'uint64_t'
  uint64_t cookie_addr;
/usr/include/linux/rds.h:222:2: error: unknown type name 'uint64_t'
  uint64_t flags;
/usr/include/linux/rds.h:228:2: error: unknown type name 'uint64_t'
  uint64_t  cookie_addr;
/usr/include/linux/rds.h:229:2: error: unknown type name 'uint64_t'
  uint64_t  flags;
/usr/include/linux/rds.h:234:2: error: unknown type name 'uint64_t'
  uint64_t flags;
/usr/include/linux/rds.h:240:2: error: unknown type name 'uint64_t'
  uint64_t local_vec_addr;
/usr/include/linux/rds.h:241:2: error: unknown type name 'uint64_t'
  uint64_t nr_local;
/usr/include/linux/rds.h:242:2: error: unknown type name 'uint64_t'
  uint64_t flags;
/usr/include/linux/rds.h:243:2: error: unknown type name 'uint64_t'
  uint64_t user_token;
/usr/include/linux/rds.h:248:2: error: unknown type name 'uint64_t'
  uint64_t  local_addr;
/usr/include/linux/rds.h:249:2: error: unknown type name 'uint64_t'
  uint64_t  remote_addr;
/usr/include/linux/rds.h:252:4: error: unknown type name 'uint64_t'
    uint64_t compare;
/usr/include/linux/rds.h:253:4: error: unknown type name 'uint64_t'
    uint64_t swap;
/usr/include/linux/rds.h:256:4: error: unknown type name 'uint64_t'
    uint64_t add;
/usr/include/linux/rds.h:259:4: error: unknown type name 'uint64_t'
    uint64_t compare;
/usr/include/linux/rds.h:260:4: error: unknown type name 'uint64_t'
    uint64_t swap;
/usr/include/linux/rds.h:261:4: error: unknown type name 'uint64_t'
    uint64_t compare_mask;
/usr/include/linux/rds.h:262:4: error: unknown type name 'uint64_t'
    uint64_t swap_mask;
/usr/include/linux/rds.h:265:4: error: unknown type name 'uint64_t'
    uint64_t add;
/usr/include/linux/rds.h:266:4: error: unknown type name 'uint64_t'
    uint64_t nocarry_mask;
/usr/include/linux/rds.h:269:2: error: unknown type name 'uint64_t'
  uint64_t flags;
/usr/include/linux/rds.h:270:2: error: unknown type name 'uint64_t'
  uint64_t user_token;
/usr/include/linux/rds.h:274:2: error: unknown type name 'uint64_t'
  uint64_t user_token;
/usr/include/linux/rds.h:275:2: error: unknown type name 'int32_t'
  int32_t  status;

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agouapi: fix linux/mroute.h userspace compilation errors
Dmitry V. Levin [Thu, 16 Feb 2017 15:04:46 +0000 (18:04 +0300)]
uapi: fix linux/mroute.h userspace compilation errors

Include <linux/in.h> to fix the following linux/mroute.h userspace
compilation errors:

/usr/include/linux/mroute.h:58:18: error: field 'vifc_lcl_addr' has incomplete type
  struct in_addr vifc_lcl_addr;     /* Local interface address */
/usr/include/linux/mroute.h:61:17: error: field 'vifc_rmt_addr' has incomplete type
  struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */
/usr/include/linux/mroute.h:72:17: error: field 'mfcc_origin' has incomplete type
  struct in_addr mfcc_origin;  /* Origin of mcast */
/usr/include/linux/mroute.h:73:17: error: field 'mfcc_mcastgrp' has incomplete type
  struct in_addr mfcc_mcastgrp;  /* Group in question */
/usr/include/linux/mroute.h:84:17: error: field 'src' has incomplete type
  struct in_addr src;
/usr/include/linux/mroute.h:85:17: error: field 'grp' has incomplete type
  struct in_addr grp;
/usr/include/linux/mroute.h:109:17: error: field 'im_src' has incomplete type
  struct in_addr im_src,im_dst;
/usr/include/linux/mroute.h:109:24: error: field 'im_dst' has incomplete type
  struct in_addr im_src,im_dst;

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agouapi: fix linux/mroute6.h userspace compilation errors
Dmitry V. Levin [Thu, 16 Feb 2017 15:04:29 +0000 (18:04 +0300)]
uapi: fix linux/mroute6.h userspace compilation errors

Include <linux/in6.h> to fix the following linux/mroute6.h userspace
compilation errors:

/usr/include/linux/mroute6.h:80:22: error: field 'mf6cc_origin' has incomplete type
  struct sockaddr_in6 mf6cc_origin;  /* Origin of mcast */
/usr/include/linux/mroute6.h:81:22: error: field 'mf6cc_mcastgrp' has incomplete type
  struct sockaddr_in6 mf6cc_mcastgrp;  /* Group in question */
/usr/include/linux/mroute6.h:91:22: error: field 'src' has incomplete type
  struct sockaddr_in6 src;
/usr/include/linux/mroute6.h:92:22: error: field 'grp' has incomplete type
  struct sockaddr_in6 grp;
/usr/include/linux/mroute6.h:132:18: error: field 'im6_src' has incomplete type
  struct in6_addr im6_src, im6_dst;
/usr/include/linux/mroute6.h:132:27: error: field 'im6_dst' has incomplete type
  struct in6_addr im6_src, im6_dst;

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agouapi: fix linux/ipv6_route.h userspace compilation errors
Dmitry V. Levin [Thu, 16 Feb 2017 15:04:14 +0000 (18:04 +0300)]
uapi: fix linux/ipv6_route.h userspace compilation errors

Include <linux/in6.h> to fix the following linux/ipv6_route.h userspace
compilation errors:

/usr/include/linux/ipv6_route.h:42:19: error: field 'rtmsg_dst' has incomplete type
  struct in6_addr  rtmsg_dst;
/usr/include/linux/ipv6_route.h:43:19: error: field 'rtmsg_src' has incomplete type
  struct in6_addr  rtmsg_src;
/ust/include/linux/ipv6_route.h:44:19: error: field 'rtmsg_gateway' has incomplete type
  struct in6_addr  rtmsg_gateway;

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Make CRQ interrupt tasklet wait for all capabilities crqs
Thomas Falcon [Wed, 15 Feb 2017 18:18:00 +0000 (12:18 -0600)]
ibmvnic: Make CRQ interrupt tasklet wait for all capabilities crqs

After sending device capability queries and requests to the vNIC Server,
an interrupt is triggered and the responses are written to the driver's
CRQ response buffer. Since the interrupt can be triggered before all
responses are written and visible to the partition, there is a danger
that the interrupt handler or tasklet can terminate before all responses
are read, resulting in a failure to initialize the device.

To avoid this scenario, when capability commands are sent, we set
a flag that will be checked in the following interrupt tasklet that
will handle the capability responses from the server. Once all
responses have been handled, the flag is disabled; and the tasklet
is allowed to terminate.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Use common counter for capabilities checks
Thomas Falcon [Wed, 15 Feb 2017 18:17:59 +0000 (12:17 -0600)]
ibmvnic: Use common counter for capabilities checks

Two different counters were being used for capabilities
requests and queries. These commands are not called
at the same time so there is no reason a single counter
cannot be used.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoibmvnic: Handle processing of CRQ messages in a tasklet
Thomas Falcon [Wed, 15 Feb 2017 18:17:58 +0000 (12:17 -0600)]
ibmvnic: Handle processing of CRQ messages in a tasklet

Create a tasklet to process queued commands or messages received from
firmware instead of processing them in the interrupt handler. Note that
this handler does not process network traffic, but communications related
to resource allocation and device settings.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoqed: Add support for hardware offloaded FCoE.
Arun Easi [Wed, 15 Feb 2017 14:28:22 +0000 (06:28 -0800)]
qed: Add support for hardware offloaded FCoE.

This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4xxxx line of adapters - FW notification, resource initializations, etc.

Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Sun, 19 Feb 2017 16:18:46 +0000 (11:18 -0500)]
Merge git://git./linux/kernel/git/davem/net

7 years agoi40e: Invoke softirqs after napi_reschedule
Benjamin Poirier [Fri, 13 Jan 2017 01:04:14 +0000 (17:04 -0800)]
i40e: Invoke softirqs after napi_reschedule

The following message is logged from time to time when using i40e:
NOHZ: local_softirq_pending 08

i40e may schedule napi from a workqueue. Afterwards, softirqs are not run
in a deterministic time frame. The problem is the same as what was
described in commit ec13ee80145c ("virtio_net: invoke softirqs after
__napi_schedule") and this patch applies the same fix to i40e.

Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: remove duplicate device id from PCI table
Carolyn Wyborny [Wed, 21 Dec 2016 23:04:47 +0000 (18:04 -0500)]
i40e: remove duplicate device id from PCI table

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: mark the value passed to csum_replace_by_diff as __wsum
Jacob Keller [Mon, 12 Dec 2016 23:44:17 +0000 (15:44 -0800)]
i40e: mark the value passed to csum_replace_by_diff as __wsum

Fix, or rather, avoid a sparse warning caused by the fact that
csum_replace_by_diff expects to receive a __wsum value. Since the
calculation appears to work, simply typecast the passed paylen value to
__wsum to avoid the warning.

This seems pretty fishy since __wsum was obviously annotated as
a separate type on purpose, so this throws the entire calculation into
question. Since it currently appears to behave as expected, the typecast
is probably safe.

Change-ID: I4fdc5cddd589abc16098176e8a61127e761488f4
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: Error handling for link event
Harshitha Ramamurthy [Mon, 12 Dec 2016 23:44:16 +0000 (15:44 -0800)]
i40e: Error handling for link event

There exists an intermittent bug which causes the 'Link Detected'
field reported by the 'ethtool <iface>' command to be 'Yes' when
in fact, there is no link. This patch fixes the problem by
enabling temporary link polling when i40e_get_link_status returns
an error. This causes the driver to remember that an admin queue
command failed and polls, until the function returns with a success.

Change-Id: I64c69b008db4017b8729f3fc27b8f65c8fe2eaa0
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: properly convert le16 value to CPU format
Jacob Keller [Mon, 12 Dec 2016 23:44:15 +0000 (15:44 -0800)]
i40e: properly convert le16 value to CPU format

This ensures that the pvid which is stored in __le16 format is converted
to the CPU format. This will fix comparison issues on Big Endian
platforms.

Change-ID: I92c80d1315dc2a0f9f095d5a0c48d461beb052ed
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: convert to cpu from le16 to generate switch_id correctly
Jacob Keller [Mon, 12 Dec 2016 23:44:14 +0000 (15:44 -0800)]
i40e: convert to cpu from le16 to generate switch_id correctly

On Big Endian platforms we would incorrectly calculate the wrong switch
id since we did not properly convert the le16 value into CPU format.
Caught by sparse.

Change-ID: I69a2f9fa064a0a91691f7d0e6fcc206adceb8e36
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: refactor AQ CMD buffer debug printing
Alan Brady [Mon, 12 Dec 2016 23:44:13 +0000 (15:44 -0800)]
i40e: refactor AQ CMD buffer debug printing

This patch refactors the '%*ph' printk format specifier to instead use
the print_hex_dump function, as recommended by the '%*ph' documentation.
This produces better/more standardized output.

Change-ID: Id56700b4e8abc40ff8c04bc8379e7df04cb4d6fd
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: Fix Adaptive ITR enabling
Carolyn Wyborny [Mon, 12 Dec 2016 23:44:12 +0000 (15:44 -0800)]
i40e: Fix Adaptive ITR enabling

This patch fixes a bug introduced with the addition of the per queue
ITR feature support in ethtool.  With that addition, there were
functions added which converted the ITR settings to binary values.
The IS_ENABLED macros that run on those values check whether a bit
is set or not and with the value being binary, the bit check always
returned ITR disabled which prevents any updating of the ITR rate.
This patch fixes the problem by changing the functions to return the
current ITR value instead and renaming it to better reflect
its function.  These functions now provide a value which will be
accurately asessed and update the ITR as intended.

Change-ID: I14f1d088d052e27f652aaa3113e186415ddea1fc
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40evf: add comment
Mitch Williams [Mon, 12 Dec 2016 23:44:11 +0000 (15:44 -0800)]
i40evf: add comment

Add a comment to reduce confusion.

Change-ID: I3d5819c0f3f5174680442ae54398a073d4a61f4f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40evf: free rings in remove function
Mitch Williams [Mon, 12 Dec 2016 23:44:10 +0000 (15:44 -0800)]
i40evf: free rings in remove function

When the i40evf_remove() calls netdev close, the device doesn't actually
close - it schedules the work for the watchdog to perform. Since we're
stopping the watchdog, this work doesn't get done. However, we're
resetting the part, so we can free resources after the reset request has
gone through. This plugs a memory leak.

Change-ID: Id5335dcaf76ce00d2a4c3d26e9faf711d7f051cf
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: remove unnecessary call to i40e_update_link_info
Jacob Keller [Mon, 12 Dec 2016 23:44:09 +0000 (15:44 -0800)]
i40e: remove unnecessary call to i40e_update_link_info

This call is made just prior to running i40e_link_event. In
i40e_link_event, we set hw->phy.get_link_info to true just prior to
calling i40e_get_link_status, which conveniently runs
i40e_update_link_info for us. Thus, we are running i40e_update_link_info
twice, which seems like something we don't need to do...

Change-ID: I36467a570f44b7546d218c99e134ff97c2709315
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: enable mc magic pkt wakeup during power down
Joshua Hay [Mon, 12 Dec 2016 23:44:08 +0000 (15:44 -0800)]
i40e: enable mc magic pkt wakeup during power down

This patch adds a call to the mac_address_write admin q function during
power down to update the PRTPM_SAH/SAL registers with the MC_MAG_EN bit
thus enabling multicast magic packet wakeup.

A FW workaround is needed to write the multicast magic wake up enable
bit in the PRTPM_SAH register. The FW expects the mac address write
admin q cmd to be called first with one of the WRITE_TYPE_LAA flags
and then with the multicast relevant flags.

*Note: This solution only works for X722 devices currently. A PFR will
clear the previously mentioned bit by default, but X722 has support for a
WOL_PRESERVE_ON_PFR flag which prevents the bit from being cleared. Once
other devices support this flag, this solution should work as well.

Change-ID: I51bd5b8535bd9051c2676e27c999c1657f786827
Signed-off-by: Joshua Hay <joshua.a.hay@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoi40e: fix disable overflow promiscuous mode
Alan Brady [Mon, 12 Dec 2016 23:44:07 +0000 (15:44 -0800)]
i40e: fix disable overflow promiscuous mode

There exists a bug in which the driver is unable to exit overflow
promiscuous mode after having added "too many" mac filters.  It is
expected that after triggering overflow promiscuous, removing the
failed/extra filters should then disable overflow promiscuous mode.

The bug exists because we were intentionally skipping the sync_vsi_filter
path in cases where we were removing failed filters since they shouldn't
have been added to the firmware in the first place, however we still
need to go through the sync_vsi_filter code path to determine whether or
not it is ok to exit overflow promiscuous mode.  This patch fixes the
bug by making sure we go through the sync_vsi_filter path in cases of
failed filters.

Change-ID: I634d249ca3e5fa50729553137c295e73e7722143
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoipv6: release dst on error in ip6_dst_lookup_tail
Willem de Bruijn [Sun, 19 Feb 2017 00:00:45 +0000 (19:00 -0500)]
ipv6: release dst on error in ip6_dst_lookup_tail

If ip6_dst_lookup_tail has acquired a dst and fails the IPv4-mapped
check, release the dst before returning an error.

Fixes: ec5e3b0a1d41 ("ipv6: Inhibit IPv4-mapped src address on the wire.")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Sun, 19 Feb 2017 01:38:09 +0000 (17:38 -0800)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Two more bugfixes that came in during this week:

   - a defconfig change to enable a vital driver used on some Qualcomm
     based phones. This was already queued for 4.11, but the maintainer
     asked to have it in 4.10 after all.

   - a regression fix for the reset controller framework, this got
     broken by a typo in the 4.10 merge window"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: multi_v7_defconfig: enable Qualcomm RPMCC
  reset: fix shared reset triggered_count decrement on error

7 years agoMerge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Linus Torvalds [Sun, 19 Feb 2017 01:36:15 +0000 (17:36 -0800)]
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "A couple of fixes from Kees concerning problems he spotted with our
  user access support"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8658/1: uaccess: fix zeroing of 64-bit get_user()
  ARM: 8657/1: uaccess: consistently check object sizes

7 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Feb 2017 01:34:56 +0000 (17:34 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fix from Thomas Gleixner:
 "Make the build clean by working around yet another GCC stupidity"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vm86: Fix unused variable warning if THP is disabled

7 years agoMerge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Feb 2017 01:33:17 +0000 (17:33 -0800)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull locking fix from Thomas Gleixner:
 "Move the futex init function to core initcall so user mode helper does
  not run into an uninitialized futex syscall"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Move futex_init() to core_initcall

7 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Feb 2017 01:30:36 +0000 (17:30 -0800)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "Two small fixes::

   - Prevent deadlock on the tick broadcast lock. Found and fixed by
     Mike.

   - Stop using printk() in the timekeeping debug code to prevent a
     deadlock against the scheduler"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timekeeping: Use deferred printk() in debug code
  tick/broadcast: Prevent deadlock on tick_broadcast_lock

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Sun, 19 Feb 2017 01:29:00 +0000 (17:29 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Fix leak in dpaa_eth error paths, from Dan Carpenter.

 2) Use after free when using IPV6_RECVPKTINFO, from Andrey Konovalov.

 3) fanout_release() cannot be invoked from atomic contexts, from Anoob
    Soman.

 4) Fix bogus attempt at lockdep annotation in IRDA.

 5) dev_fill_metadata_dst() can OOP on a NULL dst cache pointer, from
    Paolo Abeni.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  irda: Fix lockdep annotations in hashbin_delete().
  vxlan: fix oops in dev_fill_metadata_dst
  dccp: fix freeing skb too early for IPV6_RECVPKTINFO
  dpaa_eth: small leak on error
  packet: Do not call fanout_release from atomic contexts

7 years agoprintk: use rcuidle console tracepoint
Sergey Senozhatsky [Sat, 18 Feb 2017 11:42:54 +0000 (03:42 -0800)]
printk: use rcuidle console tracepoint

Use rcuidle console tracepoint because, apparently, it may be issued
from an idle CPU:

  hw-breakpoint: Failed to enable monitor mode on CPU 0.
  hw-breakpoint: CPU 0 failed to disable vector catch

  ===============================
  [ ERR: suspicious RCU usage.  ]
  4.10.0-rc8-next-20170215+ #119 Not tainted
  -------------------------------
  ./include/trace/events/printk.h:32 suspicious rcu_dereference_check() usage!

  other info that might help us debug this:

  RCU used illegally from idle CPU!
  rcu_scheduler_active = 2, debug_locks = 0
  RCU used illegally from extended quiescent state!
  2 locks held by swapper/0/0:
   #0:  (cpu_pm_notifier_lock){......}, at: [<c0237e2c>] cpu_pm_exit+0x10/0x54
   #1:  (console_lock){+.+.+.}, at: [<c01ab350>] vprintk_emit+0x264/0x474

  stack backtrace:
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-rc8-next-20170215+ #119
  Hardware name: Generic OMAP4 (Flattened Device Tree)
    console_unlock
    vprintk_emit
    vprintk_default
    printk
    reset_ctrl_regs
    dbg_cpu_pm_notify
    notifier_call_chain
    cpu_pm_exit
    omap_enter_idle_coupled
    cpuidle_enter_state
    cpuidle_enter_state_coupled
    do_idle
    cpu_startup_entry
    start_kernel

This RCU warning, however, is suppressed by lockdep_off() in printk().
lockdep_off() increments the ->lockdep_recursion counter and thus
disables RCU_LOCKDEP_WARN() and debug_lockdep_rcu_enabled(), which want
lockdep to be enabled "current->lockdep_recursion == 0".

Link: http://lkml.kernel.org/r/20170217015932.11898-1-sergey.senozhatsky@gmail.com
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <rmk@armlinux.org.uk>
Cc: <stable@vger.kernel.org> [3.4+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agobtmrvl: fix spelling mistake: "actived" -> "activated"
Colin Ian King [Sat, 18 Feb 2017 22:52:55 +0000 (22:52 +0000)]
btmrvl: fix spelling mistake: "actived" -> "activated"

trivial fix to spelling mistake in error message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
7 years agoARM: multi_v7_defconfig: enable Qualcomm RPMCC
Andy Gross [Mon, 2 Jan 2017 20:35:05 +0000 (14:35 -0600)]
ARM: multi_v7_defconfig: enable Qualcomm RPMCC

This patch enables the Qualcomm RPM based Clock Controller present on
A-family boards.

Signed-off-by: Andy Gross <andy.gross@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
7 years agoBluetooth: hci_qca: fix spelling mistake: "Spurrious" -> "Spurious"
Colin Ian King [Fri, 17 Feb 2017 19:58:10 +0000 (19:58 +0000)]
Bluetooth: hci_qca: fix spelling mistake: "Spurrious" -> "Spurious"

trivial fix to spelling mistake in error message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
7 years agoirda: Fix lockdep annotations in hashbin_delete().
David S. Miller [Fri, 17 Feb 2017 21:19:39 +0000 (16:19 -0500)]
irda: Fix lockdep annotations in hashbin_delete().

A nested lock depth was added to the hasbin_delete() code but it
doesn't actually work some well and results in tons of lockdep splats.

Fix the code instead to properly drop the lock around the operation
and just keep peeking the head of the hashbin queue.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 17 Feb 2017 21:01:58 +0000 (13:01 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull block layer fix from Jens Axboe:
 "A single fix for a lockdep splat reported by Thomas and Gabriel"

* 'for-linus' of git://git.kernel.dk/linux-block:
  cfq-iosched: don't call wbt_disable_default() with IRQs disabled

7 years agovxlan: fix oops in dev_fill_metadata_dst
Paolo Abeni [Fri, 17 Feb 2017 18:14:27 +0000 (19:14 +0100)]
vxlan: fix oops in dev_fill_metadata_dst

Since the commit 0c1d70af924b ("net: use dst_cache for vxlan device")
vxlan_fill_metadata_dst() calls vxlan_get_route() passing a NULL
dst_cache pointer, so the latter should explicitly check for
valid dst_cache ptr. Unfortunately the commit d71785ffc7e7 ("net: add
dst_cache to ovs vxlan lwtunnel") removed said check.

As a result is possible to trigger a null pointer access calling
vxlan_fill_metadata_dst(), e.g. with:

ovs-vsctl add-br ovs-br0
ovs-vsctl add-port ovs-br0 vxlan0 -- set interface vxlan0 \
type=vxlan options:remote_ip=192.168.1.1 \
options:key=1234 options:dst_port=4789 ofport_request=10
ip address add dev ovs-br0 172.16.1.2/24
ovs-vsctl set Bridge ovs-br0 ipfix=@i -- --id=@i create IPFIX \
targets=\"172.16.1.1:1234\" sampling=1
iperf -c 172.16.1.1 -u -l 1000 -b 10M -t 1 -p 1234

This commit addresses the issue passing to vxlan_get_route() the
dst_cache already available into the lwt info processed by
vxlan_fill_metadata_dst().

Fixes: d71785ffc7e7 ("net: add dst_cache to ovs vxlan lwtunnel")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotcp: use page_ref_inc() in tcp_sendmsg()
Eric Dumazet [Fri, 17 Feb 2017 17:11:42 +0000 (09:11 -0800)]
tcp: use page_ref_inc() in tcp_sendmsg()

sk_page_frag_refill() allocates either a compound page or an order-0
page. We can use page_ref_inc() which is slightly faster than get_page()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotcp: accommodate sequence number to a peer's shrunk receive window caused by precisio...
Cui, Cheng [Fri, 17 Feb 2017 17:04:55 +0000 (17:04 +0000)]
tcp: accommodate sequence number to a peer's shrunk receive window caused by precision loss in window scaling

Prevent sending out a left-shifted sequence number from a Linux sender in
response to a peer's shrunk receive-window caused by losing least significant
bits in window-scaling.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Cheng Cui <Cheng.Cui@netapp.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'sfc-misc-fixes'
David S. Miller [Fri, 17 Feb 2017 20:29:40 +0000 (15:29 -0500)]
Merge branch 'sfc-misc-fixes'

Edward Cree says:

====================
sfc: misc. fixes

Three largely unrelated fixes to increase robustness in rare edge cases.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosfc: do not device_attach if a reset is pending
Peter Dunning [Fri, 17 Feb 2017 15:50:43 +0000 (15:50 +0000)]
sfc: do not device_attach if a reset is pending

efx_start_all can return without initialising queues as a reset is pending.
 This means that when netif_device_attach is called, the kernel can start
 sending traffic without having an initialised TX queue to send to.
This patch avoids this by not calling netif_device_attach if there is a
 pending reset.

Fixes: e283546c0465 ("sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast)")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosfc: forget filters from sw table if hw replies ENOENT on removing them
Bert Kenward [Fri, 17 Feb 2017 15:50:12 +0000 (15:50 +0000)]
sfc: forget filters from sw table if hw replies ENOENT on removing them

If the hw doesn't think they exist, we should defer to its authority.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosfc: fix filter_id misinterpretation in edge case
Jon Cooper [Fri, 17 Feb 2017 15:49:13 +0000 (15:49 +0000)]
sfc: fix filter_id misinterpretation in edge case

On EF10, hardware filter IDs are 13 bits, but in some places we store
 32-bit "full filter IDs" in which higher order bits encode the filter
 match-priority.  This could cause a filter to have a full filter ID of
 0xffff, which is also the value EFX_EF10_FILTER_ID_INVALID which we use
 in 16-bit "short" filter IDs (without match-priority bits).  This would
 occur if the hardware filter ID was 0x1fff and the match-priority was 7.
Unfortunately, some code that checks for EFX_EF10_FILTER_ID_INVALID can
 be called on full filter IDs, and will WARN_ON if this ever happens.
So, since we have plenty of spare bits in the full filter ID, this patch
 shifts the priority bits left one bit when constructing the full filter
 IDs, ensuring that the 0x2000 bit of a full filter ID will always be 0
 and thus no full filter ID can ever equal EFX_EF10_FILTER_ID_INVALID.

This patch also replaces open-coded full<->short filter ID conversions
 with calls to functions, thus keeping the definition of the full filter
 ID format in one place.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agovmxnet3: prevent building with 64K pages
Arnd Bergmann [Fri, 17 Feb 2017 15:08:30 +0000 (16:08 +0100)]
vmxnet3: prevent building with 64K pages

I got a warning about broken code on ARM64 with 64K pages:

drivers/net/vmxnet3/vmxnet3_drv.c: In function 'vmxnet3_rq_init':
drivers/net/vmxnet3/vmxnet3_drv.c:1679:29: error: large integer implicitly truncated to unsigned type [-Werror=overflow]
    rq->buf_info[0][i].len = PAGE_SIZE;

'len' here is a 16-bit integer, so this clearly won't work. I don't think
this driver is used much on anything other than x86, so there is no need
to fix this properly and we can work around it with a Kconfig dependency
to forbid known-broken configurations. qemu in theory supports it on
other architectures too, but presumably only for compatibility with x86
guests that also run on vmware.

CONFIG_PAGE_SIZE_64KB is used on hexagon, mips, sh and tile, the other
symbols are architecture-specific names for the same thing.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet/wan: add MODULE_LICENSE for fsl_ucc_hdlc
Valentin Longchamp [Fri, 17 Feb 2017 10:31:22 +0000 (11:31 +0100)]
net/wan: add MODULE_LICENSE for fsl_ucc_hdlc

It is required to build it as a module.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agords:Remove unnecessary ib_ring unalloc
Zhu Yanjun [Fri, 17 Feb 2017 09:16:22 +0000 (04:16 -0500)]
rds:Remove unnecessary ib_ring unalloc

In the function rds_ib_xmit_atomic, ib_ring is not allocated
successfully. As such, it is not necessary to unalloc it.

Cc: Joe Jin <joe.jin@oracle.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: Use PCI_DEVICE_ID_NETRONOME_NFP* defines
Simon Horman [Fri, 17 Feb 2017 07:57:54 +0000 (08:57 +0100)]
nfp: Use PCI_DEVICE_ID_NETRONOME_NFP* defines

Use PCI_DEVICE_ID_NETRONOME_NFP*, defined in linux/pci_ids.h,
rather than replicating the same values in the NFP driver.

Signed-off-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agopkt_sched: Remove useless qdisc_stab_lock
Gao Feng [Fri, 17 Feb 2017 06:34:19 +0000 (14:34 +0800)]
pkt_sched: Remove useless qdisc_stab_lock

The qdisc_stab_lock is used in qdisc_get_stab and qdisc_put_stab.
These two functions are invoked in qdisc_create, qdisc_change, and
qdisc_destroy which run fully under RTNL.

So it already makes sure only one could access the qdisc_stab_list at
the same time. Then it is unnecessary to use qdisc_stab_lock now.

Signed-off-by: Gao Feng <fgao@ikuai8.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agorxrpc: Change module filename to rxrpc.ko
David Howells [Fri, 17 Feb 2017 18:16:21 +0000 (18:16 +0000)]
rxrpc: Change module filename to rxrpc.ko

Change module filename from af-rxrpc.ko to rxrpc.ko so as to be consistent
with the other protocol drivers.

Also adjust the documentation to reflect this.

Further, there is no longer a standalone rxkad module, as it has been
merged into the rxrpc core, so get rid of references to that.

Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonetvsc: fix typo on statistics
Simon Xiao [Fri, 17 Feb 2017 19:36:20 +0000 (11:36 -0800)]
netvsc: fix typo on statistics

Return the correct tx_errors stats in netvsc.

Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Simon Xiao <sixiao@microsoft.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agortnl: don't account unused struct ifla_port_vsi in rtnl_port_size
Daniel Borkmann [Fri, 17 Feb 2017 00:56:11 +0000 (01:56 +0100)]
rtnl: don't account unused struct ifla_port_vsi in rtnl_port_size

When allocating rtnl dump messages, struct ifla_port_vsi is never dumped,
so we can save header plus payload in rtnl_port_size(). Infact, attribute
IFLA_PORT_VSI_TYPE and struct ifla_port_vsi are not used anywhere in
the kernel. We only need to keep the nla policy should applications in
user space be filling this out. Same NLA_BINARY issue exists as was fixed
in 364d5716a7ad ("rtnetlink: ifla_vf_policy: fix misuses of NLA_BINARY")
and others, but then again IFLA_PORT_VSI_TYPE is not used anywhere, so
just add a comment that it's unused.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: qlogic: netxen: use new api ethtool_{get|set}_link_ksettings
Philippe Reynes [Thu, 16 Feb 2017 22:28:01 +0000 (23:28 +0100)]
net: qlogic: netxen: use new api ethtool_{get|set}_link_ksettings

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: hamachi: use new api ethtool_{get|set}_link_ksettings
Philippe Reynes [Thu, 16 Feb 2017 21:46:14 +0000 (22:46 +0100)]
net: hamachi: use new api ethtool_{get|set}_link_ksettings

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobridge: don't indicate expiry on NTF_EXT_LEARNED fdb entries
Roopa Prabhu [Thu, 16 Feb 2017 21:38:04 +0000 (13:38 -0800)]
bridge: don't indicate expiry on NTF_EXT_LEARNED fdb entries

added_by_external_learn fdb entries are added and expired by
external entities like switchdev driver or external controllers.
ageing is already disabled for such entries. Hence, don't
indicate expiry for such fdb entries.

CC: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'bpf-misc'
David S. Miller [Fri, 17 Feb 2017 18:40:06 +0000 (13:40 -0500)]
Merge branch 'bpf-misc'

Daniel Borkmann says:

====================
Misc BPF improvements

This last series for this window adds various misc
improvements to BPF, one is to mark registered map and
prog types as __ro_after_init, another one for removing
cBPF stubs in eBPF JITs and moving the stub to the core
and last also improving JITs is to make generated images
visible to the kernel and kallsyms, so they can be
seen in traces. For details, please have a look at the
individual patches.

Thanks a lot!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: make jited programs visible in traces
Daniel Borkmann [Thu, 16 Feb 2017 21:24:50 +0000 (22:24 +0100)]
bpf: make jited programs visible in traces

Long standing issue with JITed programs is that stack traces from
function tracing check whether a given address is kernel code
through {__,}kernel_text_address(), which checks for code in core
kernel, modules and dynamically allocated ftrace trampolines. But
what is still missing is BPF JITed programs (interpreted programs
are not an issue as __bpf_prog_run() will be attributed to them),
thus when a stack trace is triggered, the code walking the stack
won't see any of the JITed ones. The same for address correlation
done from user space via reading /proc/kallsyms. This is read by
tools like perf, but the latter is also useful for permanent live
tracing with eBPF itself in combination with stack maps when other
eBPF types are part of the callchain. See offwaketime example on
dumping stack from a map.

This work tries to tackle that issue by making the addresses and
symbols known to the kernel. The lookup from *kernel_text_address()
is implemented through a latched RB tree that can be read under
RCU in fast-path that is also shared for symbol/size/offset lookup
for a specific given address in kallsyms. The slow-path iteration
through all symbols in the seq file done via RCU list, which holds
a tiny fraction of all exported ksyms, usually below 0.1 percent.
Function symbols are exported as bpf_prog_<tag>, in order to aide
debugging and attribution. This facility is currently enabled for
root-only when bpf_jit_kallsyms is set to 1, and disabled if hardening
is active in any mode. The rationale behind this is that still a lot
of systems ship with world read permissions on kallsyms thus addresses
should not get suddenly exposed for them. If that situation gets
much better in future, we always have the option to change the
default on this. Likewise, unprivileged programs are not allowed
to add entries there either, but that is less of a concern as most
such programs types relevant in this context are for root-only anyway.
If enabled, call graphs and stack traces will then show a correct
attribution; one example is illustrated below, where the trace is
now visible in tooling such as perf script --kallsyms=/proc/kallsyms
and friends.

Before:

  7fff8166889d bpf_clone_redirect+0x80007f0020ed (/lib/modules/4.9.0-rc8+/build/vmlinux)
         f5d80 __sendmsg_nocancel+0xffff006451f1a007 (/usr/lib64/libc-2.18.so)

After:

  7fff816688b7 bpf_clone_redirect+0x80007f002107 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fffa0575728 bpf_prog_33c45a467c9e061a+0x8000600020fb (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fffa07ef1fc cls_bpf_classify+0x8000600020dc (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff81678b68 tc_classify+0x80007f002078 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff8164d40b __netif_receive_skb_core+0x80007f0025fb (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff8164d718 __netif_receive_skb+0x80007f002018 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff8164e565 process_backlog+0x80007f002095 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff8164dc71 net_rx_action+0x80007f002231 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff81767461 __softirqentry_text_start+0x80007f0020d1 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff817658ac do_softirq_own_stack+0x80007f00201c (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff810a2c20 do_softirq+0x80007f002050 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff810a2cb5 __local_bh_enable_ip+0x80007f002085 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff8168d452 ip_finish_output2+0x80007f002152 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff8168ea3d ip_finish_output+0x80007f00217d (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff8168f2af ip_output+0x80007f00203f (/lib/modules/4.9.0-rc8+/build/vmlinux)
  [...]
  7fff81005854 do_syscall_64+0x80007f002054 (/lib/modules/4.9.0-rc8+/build/vmlinux)
  7fff817649eb return_from_SYSCALL_64+0x80007f002000 (/lib/modules/4.9.0-rc8+/build/vmlinux)
         f5d80 __sendmsg_nocancel+0xffff01c484812007 (/usr/lib64/libc-2.18.so)

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: remove stubs for cBPF from arch code
Daniel Borkmann [Thu, 16 Feb 2017 21:24:49 +0000 (22:24 +0100)]
bpf: remove stubs for cBPF from arch code

Remove the dummy bpf_jit_compile() stubs for eBPF JITs and make
that a single __weak function in the core that can be overridden
similarly to the eBPF one. Also remove stale pr_err() mentions
of bpf_jit_compile.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: mark all registered map/prog types as __ro_after_init
Daniel Borkmann [Thu, 16 Feb 2017 21:24:48 +0000 (22:24 +0100)]
bpf: mark all registered map/prog types as __ro_after_init

All map types and prog types are registered to the BPF core through
bpf_register_map_type() and bpf_register_prog_type() during init and
remain unchanged thereafter. As by design we don't (and never will)
have any pluggable code that can register to that at any later point
in time, lets mark all the existing bpf_{map,prog}_type_list objects
in the tree as __ro_after_init, so they can be moved to read-only
section from then onwards.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodccp: fix freeing skb too early for IPV6_RECVPKTINFO
Andrey Konovalov [Thu, 16 Feb 2017 16:22:46 +0000 (17:22 +0100)]
dccp: fix freeing skb too early for IPV6_RECVPKTINFO

In the current DCCP implementation an skb for a DCCP_PKT_REQUEST packet
is forcibly freed via __kfree_skb in dccp_rcv_state_process if
dccp_v6_conn_request successfully returns.

However, if IPV6_RECVPKTINFO is set on a socket, the address of the skb
is saved to ireq->pktopts and the ref count for skb is incremented in
dccp_v6_conn_request, so skb is still in use. Nevertheless, it gets freed
in dccp_rcv_state_process.

Fix by calling consume_skb instead of doing goto discard and therefore
calling __kfree_skb.

Similar fixes for TCP:

fb7e2399ec17f1004c0e0ccfd17439f8759ede01 [TCP]: skb is unexpectedly freed.
0aea76d35c9651d55bbaf746e7914e5f9ae5a25d tcp: SYN packets are now
simply consumed

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobridge: vlan_tunnel: explicitly reset metadata attrs to NULL on failure
Roopa Prabhu [Thu, 16 Feb 2017 19:29:21 +0000 (11:29 -0800)]
bridge: vlan_tunnel: explicitly reset metadata attrs to NULL on failure

Fixes: efa5356b0d97 ("bridge: per vlan dst_metadata netlink support")
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>