Commit Graph

535915 Commits

Author SHA1 Message Date
Jiri Benc
06e9d040ba ipv6: drop metadata dst in ip6_route_input
The fix in commit 48fb6b5545 is incomplete, as now ip6_route_input can be
called with non-NULL dst if it's a metadata dst and the reference is leaked.
Drop the reference.

Fixes: 48fb6b5545 ("ipv6: fix crash over flow-based vxlan device")
Fixes: ee122c79d4 ("vxlan: Flow based tunneling")
CC: Wei-Chun Chao <weichunc@plumgrid.com>
CC: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
61adedf3e3 route: move lwtunnel state to dst_entry
Currently, the lwtunnel state resides in per-protocol data. This is
a problem if we encapsulate ipv6 traffic in an ipv4 tunnel (or vice versa).
The xmit function of the tunnel does not know whether the packet has been
routed to it by ipv4 or ipv6, yet it needs the lwtstate data. Moving the
lwtstate data to dst_entry makes such inter-protocol tunneling possible.

As a bonus, this brings a nice diffstat.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
7c383fb225 ip_tunnels: use tos and ttl fields also for IPv6
Rename the ipv4_tos and ipv4_ttl fields to just 'tos' and 'ttl', as they'll
be used with IPv6 tunnels, too.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
c1ea5d672a ip_tunnels: add IPv6 addresses to ip_tunnel_key
Add the IPv6 addresses as an union with IPv4 ones. When using IPv4, the
newly introduced padding after the IPv4 addresses needs to be zeroed out.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
376534a3d1 ip_tunnels: use offsetofend
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
6b8847c5a2 ip_tunnels: use u8/u16/u32
The ip_tunnels.h include file uses mixture of __u16 and u16 (etc.) types.
Unify it to the non-underscore variants.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
ac1cf3990c ip_tunnels: remove custom alignment and packing
The custom alignment of struct ip_tunnel_key is unnecessary. In struct
sw_flow_key, it starts at offset 256, in struct ip_tunnel_info it's the
first field.

The structure is also packed even without the __packed keyword.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:35 -07:00
Jeremy Linton
938049e18d net: xgene Remove xgene specific phy and MAC lookup functions
Convert the xgene_get_mac_address to device_get_mac_address(), and
xgene_get_phy_mode() to device_get_phy_mode().

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:43:49 -07:00
David Ahern
4c9bcd1179 net: Fix nexthop lookups
Andreas reported breakage adding routes with local nexthops:
$ ip route show table main
...
172.28.0.0/24 dev vnf-xe1p0  proto kernel  scope link  src 172.28.0.16

$ ip route add 10.0.0.0/8 via 172.28.0.32 table 100 dev vnf-xe1p0
RTNETLINK answers: Resource temporarily unavailable

3bfd847203 changed the lookup to use the passed in table but for cases like
this the nexthop is in the local table rather than the passed in table.

Fixes: 3bfd847203 ("net: Use passed in table for nexthop lookups")
Reported-by: Andreas Schultz <aschultz@tpip.net>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:42:39 -07:00
Scott Feldman
eb4cb85180 bridge: fix netlink max attr size
.maxtype should match .policy.  Probably just been getting lucky here
because IFLA_BRPORT_MAX > IFLA_BR_MAX.

Fixes: 13323516 ("bridge: implement rtnl_link_ops->changelink")
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:36:25 -07:00
Jeremy Linton
4d14a63400 smsc911x: Remove dev==NULL check.
The dev==NULL check in smsc911x_probe_config is useless
and isn't providing any additional protection. If a fwnode
doesn't exist then an appropriate error should be returned
by device_get_phy_mode() covering the original case
of a missing of/fwnode.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:36:25 -07:00
Jeremy Linton
2f710a3a80 device property: Add ETH_ALEN check, update comments.
This patch adds MAC address length check back into
the device_get_mac_addr() function before calling
is_valid_ether_addr() similar to the way the OF
routine does it.

Update the comments for the two new functions.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:36:25 -07:00
David S. Miller
ef09242f39 Major changes:
ath10k:
 
 * add support for qca99x0 family of devices
 * improve performance of tx_lock
 * add support for raw mode (802.11 frame format) and software crypto
   engine enabled via a module parameter
 
 ath9k:
 
 * add fast-xmit support
 
 wil6210:
 
 * implement TSO support
 * support bootloader v1 and onwards
 
 iwlwifi:
 
 * Deprecate -10.ucode
 * Clean ups towards multiple Rx queues
 * Add support for longer CMD IDs. This will be required by new
   firmwares since we are getting close to the u8 limit.
 * bugfixes for the D0i3 power state
 * Add basic support for FTM
 * polish the Miracast operation
 * fix a few power consumption issues
 * scan cleanup
 * fixes for D0i3 system state
 * add paging for devices that support it
 * add again the new RBD allocation model
 * add more options to the firmware debug system
 * add support for frag SKBs in Tx
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJV1FziAAoJEG4XJFUm622bEJwH/RdNlAK4+IS9Tx0K6EA2fDE3
 001J16in/1IPPr8/RmQWNzHGN5/GAYlAdl5v4fkwb8qvcDCyPlQbSEC8ghd32H6M
 G1101qEfGk9bhLTpI8xjeqsT1gl98LswPYNAfoRX4AJKAmNCkfJ1WILLi/Q2DUOf
 oG6IersuqQOdQbkXDnMm49FBZeSkVvzsJL+WQhKhYblh0bDH3qGuLcYvtkSnt+P8
 8QG5X+DPEpmaYcu+5E5N0XgffsdPj/+xXlFova4DFySDYb4OzEH1MYp/rHjPpnUo
 nDJqxZIgkkmhu0CGtvpWNeSZ7GQBI0Bzdd+dwBY5yyg5AqWuQ5A1W+4r3SjvHyU=
 =A8Ax
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-next-for-davem-2015-08-19' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
Major changes:

ath10k:

* add support for qca99x0 family of devices
* improve performance of tx_lock
* add support for raw mode (802.11 frame format) and software crypto
  engine enabled via a module parameter

ath9k:

* add fast-xmit support

wil6210:

* implement TSO support
* support bootloader v1 and onwards

iwlwifi:

* Deprecate -10.ucode
* Clean ups towards multiple Rx queues
* Add support for longer CMD IDs. This will be required by new
  firmwares since we are getting close to the u8 limit.
* bugfixes for the D0i3 power state
* Add basic support for FTM
* polish the Miracast operation
* fix a few power consumption issues
* scan cleanup
* fixes for D0i3 system state
* add paging for devices that support it
* add again the new RBD allocation model
* add more options to the firmware debug system
* add support for frag SKBs in Tx
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:13:25 -07:00
Ying Xue
e01286ef03 ipv4: Make fib_encap_match static
Make fib_encap_match() static as it isn't used outside the file.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:12:23 -07:00
David S. Miller
84b6714e54 Merge branch 'ewma'
Johannes Berg says:

====================
average: convert users to inline implementation

Since there's very little benefit of the out-of-line implementation
(a single byte of .text in one driver as far as I've seen), convert
all drivers to the inline implementation, saving memory, and remove
the out-of-line implementation.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:10:23 -07:00
Johannes Berg
f4e774f55f average: remove out-of-line implementation
Since all users are now converted to the inline implementation,
remove the out-of-line implementation entirely.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:10:23 -07:00
Johannes Berg
11ab35ed04 rt2x00: use DECLARE_EWMA
Instead of using the out-of-line EWMA calculation, use DECLARE_EWMA()
to create static inlines. On x86/64 this results in code that's one
byte larger (for me), but reduces struct link_ant and struct link
size by the two unsigned long values that store the parameters each.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:10:22 -07:00
Johannes Berg
46f26ddf56 ath5k: use DECLARE_EWMA
This reduces code size slightly (at least on x86/64) while also
removing memory consumption by two unsigned long values for each
ath5k device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:10:22 -07:00
Johannes Berg
5377d75823 virtio_net: use DECLARE_EWMA
Instead of using the out-of-line EWMA calculation, use DECLARE_EWMA()
to create static inlines. On x86/64 this results in no change in code
size for me, but reduces the struct receive_queue size by the two
unsigned long values that store the parameters.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:10:22 -07:00
Yuval Mintz
0f8f27de19 bnx2x: Fix vxlan endianity issue
Commit f34fa14cc0 ("bnx2x: Add vxlan RSS support") has introduced an
endianity issue when passing the vxlan UDP port to the HW.

Reported-by: <fengguang.wu@intel.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:08:08 -07:00
David S. Miller
b86d598d0c Merge branch 'vrf-cleanups-part-2'
Nikolay Aleksandrov says:

====================
vrf: cleanups part 2

This is the next part of vrf cleanups, patch 1 drops the SLAB_PANIC
when creating kmem cache since it's handled, patch 02 removes a slave
duplicate check which is already done by the lower/upper code, patch 3
moves the ndo_add_slave code around a bit so we can drop an error
label and patch 4 drops the master device checks which are unnecessary
because the ops are taken from the master device itself so it can't be
different.
====================

Acked-by: David Ahern <dsa@cumulusnetworks.com>
2015-08-20 13:01:57 -07:00
Nikolay Aleksandrov
2640b39c28 vrf: ndo_add|del_slave drop unnecessary checks
When ndo_add|del_slave ops are used, they're taken from the respective
master device's netdev ops, so if the master device is a VRF only then
the VRF ops will get called thus no need to check the type of the
master.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 13:01:57 -07:00
Nikolay Aleksandrov
15df5e7112 vrf: move vrf_insert_slave so we can drop a goto label
We can simplify do_vrf_add_slave by moving vrf_insert_slave in the end
of the enslaving and thus eliminate an error goto label. It always
succeeds and isn't needed before that anyway.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 13:01:57 -07:00
Nikolay Aleksandrov
67f3a90b54 vrf: remove unnecessary duplicate check
The upper/lower functions already check for duplicate slaves so no need
to do it again.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 13:01:57 -07:00
Nikolay Aleksandrov
e367da02fe vrf: don't panic on cache create failure
It's pointless to panic on cache create failure when that case is handled
and even more so since it's not a kernel-wide fatal problem so don't
panic.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 13:01:56 -07:00
Nikolay Aleksandrov
57b8efa1a5 vrf: plug skb leaks
Currently whenever a packet different from ETH_P_IP is sent through the
VRF device it is leaked so plug the leaks and properly drop these
packets.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 12:59:42 -07:00
Nikolay Aleksandrov
18041e3174 vrf: vrf_master_ifindex_rcu is not always called with rcu read lock
While running net-next I hit this:
[  634.073119] ===============================
[  634.073150] [ INFO: suspicious RCU usage. ]
[  634.073182] 4.2.0-rc6+ #45 Not tainted
[  634.073213] -------------------------------
[  634.073244] include/net/vrf.h:38 suspicious rcu_dereference_check()
usage!
[  634.073274]
               other info that might help us debug this:

[  634.073307]
               rcu_scheduler_active = 1, debug_locks = 1
[  634.073338] 2 locks held by swapper/0/0:
[  634.073369]  #0:  (((&n->timer))){+.-...}, at: [<ffffffff8112bc35>]
call_timer_fn+0x5/0x480
[  634.073412]  #1:  (slock-AF_INET){+.-...}, at: [<ffffffff8174f0f5>]
icmp_send+0x155/0x5f0
[  634.073450]
               stack backtrace:
[  634.073483] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-rc6+ #45
[  634.073514] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS
VirtualBox 12/01/2006
[  634.073545]  0000000000000000 0593ba8242d9ace4 ffff88002fc03b48
ffffffff81803f1b
[  634.073612]  0000000000000000 ffffffff81e12500 ffff88002fc03b78
ffffffff811003c5
[  634.073642]  0000000000000000 ffff88002ec4e600 ffffffff81f00f80
ffff88002fc03cf0
[  634.073669] Call Trace:
[  634.073694]  <IRQ>  [<ffffffff81803f1b>] dump_stack+0x4c/0x65
[  634.073728]  [<ffffffff811003c5>] lockdep_rcu_suspicious+0xc5/0x100
[  634.073763]  [<ffffffff8174eb56>] icmp_route_lookup+0x176/0x5c0
[  634.073793]  [<ffffffff8174f2fb>] ? icmp_send+0x35b/0x5f0
[  634.073818]  [<ffffffff8174f274>] ? icmp_send+0x2d4/0x5f0
[  634.073844]  [<ffffffff8174f3ce>] icmp_send+0x42e/0x5f0
[  634.073873]  [<ffffffff8170b662>] ipv4_link_failure+0x22/0xa0
[  634.073899]  [<ffffffff8174bdda>] arp_error_report+0x3a/0x80
[  634.073926]  [<ffffffff816d6100>] ? neigh_lookup+0x2c0/0x2c0
[  634.073952]  [<ffffffff816d396e>] neigh_invalidate+0x8e/0x110
[  634.073984]  [<ffffffff816d62ae>] neigh_timer_handler+0x1ae/0x290
[  634.074013]  [<ffffffff816d6100>] ? neigh_lookup+0x2c0/0x2c0
[  634.074013]  [<ffffffff8112bce3>] call_timer_fn+0xb3/0x480
[  634.074013]  [<ffffffff8112bc35>] ? call_timer_fn+0x5/0x480
[  634.074013]  [<ffffffff816d6100>] ? neigh_lookup+0x2c0/0x2c0
[  634.074013]  [<ffffffff8112c2bc>] run_timer_softirq+0x20c/0x430
[  634.074013]  [<ffffffff810af50e>] __do_softirq+0xde/0x630
[  634.074013]  [<ffffffff810afc97>] irq_exit+0x117/0x120
[  634.074013]  [<ffffffff81810976>] smp_apic_timer_interrupt+0x46/0x60
[  634.074013]  [<ffffffff8180e950>] apic_timer_interrupt+0x70/0x80
[  634.074013]  <EOI>  [<ffffffff8106b9d6>] ? native_safe_halt+0x6/0x10
[  634.074013]  [<ffffffff81101d8d>] ? trace_hardirqs_on+0xd/0x10
[  634.074013]  [<ffffffff81027d43>] default_idle+0x23/0x200
[  634.074013]  [<ffffffff8102852f>] arch_cpu_idle+0xf/0x20
[  634.074013]  [<ffffffff810f89ba>] default_idle_call+0x2a/0x40
[  634.074013]  [<ffffffff810f8dcc>] cpu_startup_entry+0x39c/0x4c0
[  634.074013]  [<ffffffff817f9cad>] rest_init+0x13d/0x150
[  634.074013]  [<ffffffff81f69038>] start_kernel+0x4a8/0x4c9
[  634.074013]  [<ffffffff81f68120>] ?
early_idt_handler_array+0x120/0x120
[  634.074013]  [<ffffffff81f68339>] x86_64_start_reservations+0x2a/0x2c
[  634.074013]  [<ffffffff81f68485>] x86_64_start_kernel+0x14a/0x16d

It would seem vrf_master_ifindex_rcu() can be called without RCU held in
other contexts as well so introduce a new helper which acquires rcu and
returns the ifindex.
Also add curly braces around both the "if" and "else" parts as per the
style guide.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-19 22:13:20 -07:00
Ying Xue
824e7383e9 lwtunnel: Fix the sparse warnings in fib_encap_match
When CONFIG_LWTUNNEL config is not enabled, the lwtstate_free() is not
declared in lwtunnel.h at all. However, even in this case, the function
is still referenced in fib_semantics.c so that there appears the
following sparse warnings:

net/ipv4/fib_semantics.c:553:17: error: undefined identifier 'lwtstate_free'
  CC      net/ipv4/fib_semantics.o
  net/ipv4/fib_semantics.c: In function ‘fib_encap_match’:
  net/ipv4/fib_semantics.c:553:3: error: implicit declaration of function ‘lwtstate_free’ [-Werror=implicit-function-declaration]
  cc1: some warnings being treated as errors
  make[1]: *** [net/ipv4/fib_semantics.o] Error 1
  make: *** [net/ipv4/fib_semantics.o] Error 2

To eliminate the error, we define an empty function for lwtstate_free()
in lwtunnel.h when CONFIG_LWTUNNEL is disabled.

Fixes: df383e6240 ("lwtunnel: fix memory leak")
Cc: Jiri Benc <jbenc@redhat.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-19 17:37:51 -07:00
David S. Miller
def63be85f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-08-18

This series contains updates to igb, e100, e1000e and ixgbe.

Shota Suzuki provides a fix for a possible overflow in
igb_set_interrupt_capability() which leads to an oops.  When changing the
number of queues by "ethtool -L", set IGB_FLAG_QUEUE_PAIRS in the same
manner as when initializing the igb driver.

Vasily Averin provides a fix for a missing rtnl_unlock() for when we
error out due to not being able to allocate memory for our queues.

Stefan Assman provides a couple of fixes for igb/igbvf.  First changes
the igb driver in probe to simply call igb_enable_sriov() instead of
igb_sriov_reinit() since we are starting from scratch.  Then in igbvf,
fix the driver where it does not clear the buffer_info->dma in all
cases after calling dma_unmap_single(), which was found by changing the
MTU twice.

Richard Cochran implements the periodic output function using the
programmable clock outputs available in i210 when possible, falling
back to the target time for longer periods.

Todd adds support for the Marvell PHY 1512 which is required for i354
devices.  Then updates igb to make sure SR-IOV init uses the correct
number of queues, since recent changes could result in the PF holding
onto all of the queues.

Alex Williamson provides a fix in the case where a guest OS does not
support hot-unplug, so disable SR-IOV prior to unregister_netdev() to
avoid the problem.

Jia-Ju Bai provides several patches, first knocks some collecting dust
off an old e100 driver to add a check to avoid a null pointer
dereference.  Then cleans up a possible resource leak by releasing the
skb buffer allocated when the e100_xmit_prepare() runs into an issue
in the DMA mapping.  In igb, add a missing rtnl_unlock() for when we
error out due to igb_sriov_reinit() in the igb_init_interrupt_scheme().
Provides a e1000e fix, based on suggestions from Alex Duyck to move
head/tail register writing to e1000_configure_tx/rx() to avoid a
possible null pointer dereference (similar to igb driver).  Lastly,
fix a possible memory leak in igb_probe(), where the memory shadow_vfta
allocated by kcalloc in igb_sw_init() is not freed.

Mark simplifies port-specific macros for ixgbe by eliminating explicit
comparisons with 0 and enclose formal parameters in parens to eliminate
the risk of an operator precedence issue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 20:21:32 -07:00
David S. Miller
1c8aa215ec Merge branch 'vrf-next'
Nikolay Aleksandrov says:

====================
vrf: a few simplifications and cleanups

These patches remove some unnecessary checks (patches 3, 4), unnecessary
num_slaves member and refcnt manipulations which are already done by the
upper functions.
====================

Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 20:16:53 -07:00
Nikolay Aleksandrov
58aa90875d vrf: simplify the netdev notifier function
We can drop the check because if vrf_ptr is present then we must have
the vrf device as a master and since we're running with rtnl it can't go
away.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 20:16:52 -07:00
Nikolay Aleksandrov
3a4a27d3bd vrf: don't check for dstats and rth in uninit path
dstats and rth are always present because we fail the device registration
if they can't be allocated in vrf_init() (ndo_init) so drop the unnecessary
checks.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 20:16:52 -07:00
Nikolay Aleksandrov
db5dbec5ef vrf: drop unused num_slaves member
slave_queue has a num_slaves member which is unused, drop it.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 20:16:52 -07:00
Nikolay Aleksandrov
17d95f5ee2 vrf: drop unnecessary dev refcnt changes
netdev_master_upper_dev_link/unlink already do a dev_hold/put on the
devices being linked, so no need to take another reference.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 20:16:52 -07:00
Andrew Schwartzmeyer
954591b9f3 hv_netvsc: Fix dereference of nvdev before check
Passes static analysis by Smatch.

Signed-off-by: Andrew Schwartzmeyer <andschwa@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 20:15:01 -07:00
Jiri Benc
2d79849903 lwtunnel: ip tunnel: fix multiple routes with different encap
Currently, two routes going through the same tunnel interface are considered
the same even when they are routed to a different host after encapsulation.
This causes all routes added after the first one to have incorrect
encapsulation parameters.

This is nicely visible by doing:

  # ip r a 192.168.1.2/32 dev vxlan0 tunnel dst 10.0.0.2
  # ip r a 192.168.1.3/32 dev vxlan0 tunnel dst 10.0.0.3
  # ip r
  [...]
  192.168.1.2/32 tunnel id 0 src 0.0.0.0 dst 10.0.0.2 [...]
  192.168.1.3/32 tunnel id 0 src 0.0.0.0 dst 10.0.0.2 [...]

Implement the missing comparison function.

Fixes: 3093fbe7ff ("route: Per route IP tunnel metadata via lightweight tunnel")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 19:11:20 -07:00
Jiri Benc
df383e6240 lwtunnel: fix memory leak
The built lwtunnel_state struct has to be freed after comparison.

Fixes: 571e722676 ("ipv4: support for fib route lwtunnel encap attributes")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 19:11:19 -07:00
Dan Carpenter
c938a00344 cxgb4: memory corruption in debugfs
You can't use kstrtoul() with an int or it causes memory corruption.
Also j should be unsigned or we have underflow bugs.

I considered changing "j" to unsigned long but everything fits in a u32.

Fixes: 8e3d04fd7d ('cxgb4: Add MPS tracing support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 19:06:58 -07:00
David S. Miller
3dc33e2322 enic: Fix namespace pollution causing build errors.
drivers/net/built-in.o: In function `.vnic_wq_devcmd2_alloc':
(.text+0x49fe40): multiple definition of `.vnic_wq_devcmd2_alloc'
drivers/scsi/built-in.o:(.text+0xb4318): first defined here
drivers/net/built-in.o:(.opd+0x2af00): multiple definition of `vnic_wq_devcmd2_alloc'
drivers/scsi/built-in.o:(.opd+0xad70): first defined here
drivers/net/built-in.o: In function `.vnic_wq_init_start':
(.text+0x49f9c0): multiple definition of `.vnic_wq_init_start'
drivers/scsi/built-in.o:(.text+0xb3b58): first defined here
drivers/net/built-in.o:(.opd+0x2ae88): multiple definition of `vnic_wq_init_start'
drivers/scsi/built-in.o:(.opd+0xace0): first defined here

Rename these to 'enic_*' to avoid the conflict with the functiosn of
the same name in the snic scsi driver.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 14:24:30 -07:00
Rajesh Borundia
f34fa14cc0 bnx2x: Add vxlan RSS support
Latest FW submission added some vxlan offload capabilities to our device.
This patch adds the ability to connect to the vxlan NDOs and configure
the UDP port associated with it in the HW.

The device would now be capable of performing RSS according to the
inner headers of the vxlan packets.

Signed-off-by: Rajesh Borundia <Rajesh.Borundia@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 14:21:10 -07:00
David S. Miller
3f0bf60f96 Merge branch 'dsa-multi-swtich'
Andrew Lunn says:

====================
D in DSA patches

The D in DSA is distributed, meaning multiple switches can be
connected together. Currently no mainline system does this, and so the
code is broken. This patchset contains two fixes, and a small helper.

With three of more switches, the current device tree binding is not
sufficient to express the routing between the switches. The first
patch extends the binding, in a backwards compatible way, to allow a
link between a switch to describe all the switches accessible over the
link, not just the direct neighbor.

The third patch fixes the port configuration on newer devices for
links connecting switches.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 14:17:22 -07:00
Andrew Lunn
6083ce715f dsa: mv88e6xxx: Set DSA mode based on chip abilities
Older devices only support a single DSA frame format, where as newer
devices have two. Take this into account when configuring a DSA port.
The port needs to be in plain old DSA mode, since this is a DSA link,
where as the newer format can be used for the CPU port.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 14:17:21 -07:00
Andrew Lunn
60045cbfc0 net: dsa: Add dsa_is_dsa_port() helper
Add an inline helper for determining is a port is a DSA port.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 14:17:21 -07:00
Andrew Lunn
1e72e6f885 net: dsa: Allow multi hop routes to be expressed
With more than two switches in a hierarchy, it becomes necessary to
describe multi-hop routes between switches. The current binding does
not allow this, although the older platform_data did. Extend the link
property to be a list rather than a single phandle to a remote switch.
It is then possible to express that a port should be used to reach
more than one switch and the switch maybe more than one hop away.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 14:17:21 -07:00
Jacob Keller
56d1392f2f ixgbe: TRIVIAL fix up double 'the' and comment style
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-08-18 14:06:07 -07:00
Mark Rustad
d147329b0a ixgbe: Simplify port-specific macros
Simplify port-specific macros by eliminating explicit comparison
with 0. More importantly, enclose formal parameter in parens to
eliminate the risk of an operator precedence surprise.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-08-18 14:06:07 -07:00
Todd Fujinaka
ceee3450b3 igb: make sure SR-IOV init uses the right number of queues
Recent changes to igb_probe_vfs() could lead to the PF holding onto all
of the queues. Reorder igb_probe_vfs() to be before
gb_init_queue_configuration() and add some more error checking.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-08-18 14:06:07 -07:00
Stefan Assmann
fae5ecaee3 igbvf: clear buffer_info->dma after dma_unmap_single()
The driver doesn't clear buffer_info->dma after calling
dma_unmap_single() in all cases. This has been discovered by changing
the mtu twice, which caused the following backtrace.

[   68.569280] WARNING: CPU: 2 PID: 1860 at drivers/iommu/intel-iommu.c:3517 intel_unmap+0x20c/0x220()
[   68.579392] Driver unmaps unmatched page at PFN fffc2a40
[   68.585322] Modules linked in: igbvf ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat kvm_intel kvm igb megs
[   68.599163] CPU: 2 PID: 1860 Comm: ifconfig Not tainted 4.2.0-rc4+ #147
[   68.606543] Hardware name: IBM  -[546025Z]-/00Y7630, BIOS -[VVE134TUS-1.51]- 10/17/2013
[   68.615473]  0000000000000dbd ffff88046441bb08 ffffffff81a5ad0b ffffffff81e2f9ea
[   68.623775]  ffff88046441bb58 ffff88046441bb48 ffffffff81056b55 ffff88047fc583c0
[   68.632075]  0000000000000000 ffff880469a8e600 00000000fffc2a40 ffff880465b32098
[   68.640375] Call Trace:
[   68.643109]  [<ffffffff81a5ad0b>] dump_stack+0x48/0x5d
[   68.648844]  [<ffffffff81056b55>] warn_slowpath_common+0x95/0xe0
[   68.655549]  [<ffffffff81056c56>] warn_slowpath_fmt+0x46/0x70
[   68.661960]  [<ffffffff8158a614>] ? find_iova+0x54/0x90
[   68.667791]  [<ffffffff815988dc>] intel_unmap+0x20c/0x220
[   68.673815]  [<ffffffff8159891e>] intel_unmap_page+0xe/0x10
[   68.680038]  [<ffffffffa0067536>] igbvf_clean_rx_ring+0x96/0x370 [igbvf]
[   68.687516]  [<ffffffffa0067915>] igbvf_down+0x105/0x110 [igbvf]
[   68.694219]  [<ffffffffa0067beb>] igbvf_change_mtu+0x16b/0x180 [igbvf]
[...]

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-08-18 14:06:06 -07:00
Jia-Ju Bai
42ad1a03b4 igb: Fix a memory leak in igb_probe
In error handling code of igb_probe, the memory adapter->shadow_vfta
allocated by kcalloc in igb_sw_init is not freed. So when register_netdev
or igb_init_i2c is failed, a memory leak will occur.
This patch adds kfree to fix it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-08-18 14:06:06 -07:00
Jia-Ju Bai
0845d45e90 e1000e: Modify Tx/Rx configurations to avoid null pointer dereferences in e1000_open
When e1000e_setup_rx_resources is failed in e1000_open,
e1000e_free_tx_resources in "err_setup_rx" segment is executed.
"writel(0, tx_ring->head)" statement in e1000_clean_tx_ring
in e1000e_free_tx_resources will cause a null poonter dereference(crash),
because "tx_ring->head" is only assigned in e1000_configure_tx
in e1000_configure, but it is after e1000e_setup_rx_resources.

This patch moves head/tail register writing to e1000_configure_tx/rx,
which can fix this problem. It is inspired by igb_configure_tx_ring
in the igb driver.

Specially, thank Alexander Duyck for his valuable suggestion.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-08-18 14:06:06 -07:00