Commit Graph

561437 Commits

Author SHA1 Message Date
Tobias Klauser 20b08e1a79 net: phy: mdio-mux: Check return value of mdiobus_alloc()
mdiobus_alloc() might return NULL, but its return value is not
checked in mdio_mux_init(). This could potentially lead to a NULL
pointer dereference. Fix it by checking the return value

Fixes: 0ca2997d14 ("netdev/of/phy: Add MDIO bus multiplexer support.")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-14 14:27:40 -05:00
Paolo Abeni e5f5d74747 openvswitch: fix trivial comment typo
The commit 33db4125ec ("openvswitch: Rename LABEL->LABELS") left
over an old OVS_CT_ATTR_LABEL instance, fix it.

Fixes: 33db4125ec ("openvswitch: Rename LABEL->LABELS")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-14 14:00:09 -05:00
David S. Miller 9e5be5bd43 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
netfilter fixes for net

The following patchset contains Netfilter fixes for you net tree,
specifically for nf_tables and nfnetlink_queue, they are:

1) Avoid a compilation warning in nfnetlink_queue that was introduced
   in the previous merge window with the simplification of the conntrack
   integration, from Arnd Bergmann.

2) nfnetlink_queue is leaking the pernet subsystem registration from
   a failure path, patch from Nikolay Borisov.

3) Pass down netns pointer to batch callback in nfnetlink, this is the
   largest patch and it is not a bugfix but it is a dependency to
   resolve a splat in the correct way.

4) Fix a splat due to incorrect socket memory accounting with nfnetlink
   skbuff clones.

5) Add missing conntrack dependencies to NFT_DUP_IPV4 and NFT_DUP_IPV6.

6) Traverse the nftables commit list in reverse order from the commit
   path, otherwise we crash when the user applies an incremental update
   via 'nft -f' that deletes an object that was just introduced in this
   batch, from Xin Long.

Regarding the compilation warning fix, many people have sent us (and
keep sending us) patches to address this, that's why I'm including this
batch even if this is not critical.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-14 11:09:01 -05:00
David Ahern 7f49e7a38b net: Flush local routes when device changes vrf association
The VRF driver cycles netdevs when an interface is enslaved or released:
the down event is used to flush neighbor and route tables and the up
event (if the interface was already up) effectively moves local and
connected routes to the proper table.

As of 4f823defdd the local route is left hanging around after a link
down, so when a netdev is moved from one VRF to another (or released
from a VRF altogether) local routes are left in the wrong table.

Fix by handling the NETDEV_CHANGEUPPER event. When the upper dev is
an L3mdev then call fib_disable_ip to flush all routes, local ones
to.

Fixes: 4f823defdd ("ipv4: fix to not remove local route on link down")
Cc: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-13 23:58:44 -05:00
Andy Shevchenko 98900a80d5 net:hns: print MAC with %pM
printf() has a dedicated specifier to print MAC addresses. Use it instead of
pushing each byte via stack.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-13 23:36:55 -05:00
Andy Shevchenko 946973a348 net:hns: annotate IO address space properly
Mark address pointer with __iomem in the IO accessors.

Otherwise we will get a sparse complain like following

.../hns/hns_dsaf_reg.h:991:36: warning: incorrect type in argument 1 (different address spaces)
.../hns/hns_dsaf_reg.h:991:36:    expected unsigned char [noderef] [usertype] <asn:2>*base
.../hns/hns_dsaf_reg.h:991:36:    got void *base

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-13 23:36:55 -05:00
Xin Long a907e36d54 netfilter: nf_tables: use reverse traversal commit_list in nf_tables_abort
When we use 'nft -f' to submit rules, it will build multiple rules into
one netlink skb to send to kernel, kernel will process them one by one.
meanwhile, it add the trans into commit_list to record every commit.
if one of them's return value is -EAGAIN, status |= NFNL_BATCH_REPLAY
will be marked. after all the process is done. it will roll back all the
commits.

now kernel use list_add_tail to add trans to commit, and use
list_for_each_entry_safe to roll back. which means the order of adding
and rollback is the same. that will cause some cases cannot work well,
even trigger call trace, like:

1. add a set into table foo  [return -EAGAIN]:
   commit_list = 'add set trans'
2. del foo:
   commit_list = 'add set trans' -> 'del set trans' -> 'del tab trans'
then nf_tables_abort will be called to roll back:
firstly process 'add set trans':
                   case NFT_MSG_NEWSET:
                        trans->ctx.table->use--;
                        list_del_rcu(&nft_trans_set(trans)->list);

  it will del the set from the table foo, but it has removed when del
  table foo [step 2], then the kernel will panic.

the right order of rollback should be:
  'del tab trans' -> 'del set trans' -> 'add set trans'.
which is opposite with commit_list order.

so fix it by rolling back commits with reverse order in nf_tables_abort.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-12-13 22:47:32 +01:00
David S. Miller 6d13cab4ab Merge branch 'mpls-fixes'
Robert Shearman says:

====================
mpls: fixes for nexthops without via addresses

These four fixes all apply to the case of having an mpls route with an
output device, but without a nexthop.

Patches 2 and 3 could really have been combined in one patch, but I
wanted to separate the fix for some recent breakage from the fix for a
day-1 issue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-12 00:43:44 -05:00
Robert Shearman f20367df1a mpls: make via address optional for multipath routes
The via address is optional for a single path route, yet is mandatory
when the multipath attribute is used:

  # ip -f mpls route add 100 dev lo
  # ip -f mpls route add 101 nexthop dev lo
  RTNETLINK answers: Invalid argument

Make them consistent by making the via address optional when the
RTA_MULTIPATH attribute is being parsed so that both forms of
specifying the route work.

Signed-off-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-12 00:43:44 -05:00
Robert Shearman eb7809f093 mpls: fix out-of-bounds access when via address not specified
When a via address isn't specified, the via table is left initialised
to 0 (NEIGH_ARP_TABLE), and the via address length also left
initialised to 0. This results in a via address array of length 0
being allocated (contiguous with route and nexthop array), meaning
that when a packet is sent using neigh_xmit the neighbour lookup and
creation will cause an out-of-bounds access when accessing the 4 bytes
of the IPv4 address it assumes it has been given a pointer to.

This could be fixed by allocating the 4 bytes of via address necessary
and leaving it as all zeroes. However, it seems wrong to me to use an
ipv4 nexthop (including possibly ARPing for 0.0.0.0) when the user
didn't specify to do so.

Instead, set the via address table to NEIGH_NR_TABLES to signify it
hasn't been specified and use this at forwarding time to signify a
neigh_xmit using an L2 address consisting of the device address. This
mechanism is the same as that used for both ARP and ND for loopback
interfaces and those flagged as no-arp, which are all we can really
support in this case.

Fixes: cf4b24f002 ("mpls: reduce memory usage of routes")
Signed-off-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-12 00:43:44 -05:00
Robert Shearman 72dcac96c7 mpls: don't dump RTA_VIA attribute if not specified
The problem seen is that when adding a route with a nexthop with no
via address specified, iproute2 generates bogus output:

  # ip -f mpls route add 100 dev lo
  # ip -f mpls route list
  100 via inet 0.0.8.0 dev lo

The reason for this is that the kernel generates an RTA_VIA attribute
with the family set to AF_INET, but the via address data having zero
length. The cause of family being AF_INET is that on route insert
cfg->rc_via_table is left set to 0, which just happens to be
NEIGH_ARP_TABLE which is then translated into AF_INET.

iproute2 doesn't validate the length prior to printing and so prints
garbage. Although it could be fixed to do the validation, I would
argue that AF_INET addresses should always be exactly 4 bytes so the
kernel is really giving userspace bogus data.

Therefore, avoid generating the RTA_VIA attribute when dumping the
route if the via address wasn't specified on add/modify. This is
indicated by NEIGH_ARP_TABLE and a zero via address length - if the
user specified a via address the address length would have been
validated such that it was 4 bytes. Although this is a change in
behaviour that is visible to userspace, I believe that what was
generated before was invalid and as such userspace wouldn't be
expecting it.

Signed-off-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-12 00:43:44 -05:00
Robert Shearman a3e948e83a mpls: validate L2 via address length
If an L2 via address for an mpls nexthop is specified, the length of
the L2 address must match that expected by the output device,
otherwise it could access memory beyond the end of the via address
buffer in the route.

This check was present prior to commit f8efb73c97 ("mpls: multipath
route support"), but got lost in the refactoring, so add it back,
applying it to all nexthops in multipath routes.

Fixes: f8efb73c97 ("mpls: multipath route support")
Signed-off-by: Robert Shearman <rshearma@brocade.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-12 00:43:44 -05:00
Bert Kenward f1c2ef40c6 sfc: only use RSS filters if we're using RSS
Without this, filter insertion on a VF would fail if only one channel
was in use. This would include the unicast station filter and therefore
no traffic would be received.

Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-12 00:26:18 -05:00
stephen hemminger f7fc6bc414 uapi: export ila.h
The file ila.h used for lightweight tunnels is being used by iproute2
but is not exported yet.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 23:39:33 -05:00
David S. Miller 173d26f8d5 Merge branch 'bnxt_en-fixes'
Michael Chan says:

====================
bnxt_en: Bug fix and add tx timeout recovery.

Fix a bitmap declaration bug and add missing tx timeout recovery.

v2: Fixed white space error.  Thanks Dave.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 23:34:06 -05:00
Michael Chan 028de140ff bnxt_en: Implement missing tx timeout reset logic.
The reset logic calls bnxt_close_nic() and bnxt_open_nic() under rtnl_lock
from bnxt_sp_task.  BNXT_STATE_IN_SP_TASK must be cleared before calling
bnxt_close_nic() to avoid deadlock.

v2: Fixed white space error.  Thanks Dave.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 23:34:06 -05:00
Michael Chan 4cebdcec09 bnxt_en: Don't cancel sp_task from bnxt_close_nic().
When implementing driver reset from tx_timeout in the next patch,
bnxt_close_nic() will be called from the sp_task workqueue.  Calling
cancel_work() on sp_task will hang the workqueue.

Instead, set a new bit BNXT_STATE_IN_SP_TASK when bnxt_sp_task() is running.
bnxt_close_nic() will wait for BNXT_STATE_IN_SP_TASK to clear before
proceeding.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 23:34:06 -05:00
Michael Chan caefe526d7 bnxt_en: Change bp->state to bitmap.
This allows multiple independent bits to be set for various states.
Subsequent patches to implement tx timeout reset will require this.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 23:34:06 -05:00
Michael Chan de68f5de56 bnxt_en: Fix bitmap declaration to work on 32-bit arches.
The declaration of the bitmap vf_req_snif_bmap using fixed array of
unsigned long will only work on 64-bit archs.  Use DECLARE_BITMAP instead
which will work on all archs.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 23:34:05 -05:00
Joe Stringer d110986c5d openvswitch: Respect conntrack zone even if invalid
If userspace executes ct(zone=1), and the connection tracker determines
that the packet is invalid, then the ct_zone flow key field is populated
with the default zone rather than the zone that was specified. Even
though connection tracking failed, this field should be updated with the
value that the action specified. Fix the issue.

Fixes: 7f8a436eaa ("openvswitch: Add conntrack action")
Signed-off-by: Joe Stringer <joe@ovn.org>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 23:31:31 -05:00
Joe Stringer 2f3ab9f9fc openvswitch: Fix helper reference leak
If the actions (re)allocation fails, or the actions list is larger than the
maximum size, and the conntrack action is the last action when these
problems are hit, then references to helper modules may be leaked. Fix
the issue.

Fixes: cae3a26275 ("openvswitch: Allow attaching helpers to ct action")
Signed-off-by: Joe Stringer <joe@ovn.org>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 23:31:31 -05:00
Andrew Lunn 651df21835 phy: micrel: Fix finding PHY properties in MAC node.
commit 8b63ec1837 ("phylib: Make PHYs children of their MDIO bus,
not the bus' parent.")  changed the parenting of PHY devices, making
them a child of the MDIO bus, instead of the MAC device. This broken
the Micrel PHY driver which has a deprecated feature of allowing PHY
properties to be placed into the MAC node.

In order to find the MAC node, we need to walk up the tree of devices
until we find one with an OF node attached.

Reported-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Suggested-by: David Daney <david.daney@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Fixes: 8b63ec1837 ("phylib: Make PHYs children of their MDIO bus, not the bus' parent.")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 20:31:15 -05:00
Eric Dumazet 9470e24f35 ipv6: sctp: clone options to avoid use after free
SCTP is lacking proper np->opt cloning at accept() time.

TCP and DCCP use ipv6_dup_options() helper, do the same
in SCTP.

We might later factorize this code in a common helper to avoid
future mistakes.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 20:18:40 -05:00
Eric Dumazet d188ba86dd xfrm: add rcu protection to sk->sk_policy[]
XFRM can deal with SYNACK messages, sent while listener socket
is not locked. We add proper rcu protection to __xfrm_sk_clone_policy()
and xfrm_sk_policy_lookup()

This might serve as the first step to remove xfrm.xfrm_policy_lock
use in fast path.

Fixes: fa76ce7328 ("inet: get rid of central tcp/dccp listener timer")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 19:22:06 -05:00
Eric Dumazet 56f047305d xfrm: add rcu grace period in xfrm_policy_destroy()
We will soon switch sk->sk_policy[] to RCU protection,
as SYNACK packets are sent while listener socket is not locked.

This patch simply adds RCU grace period before struct xfrm_policy
freeing, and the corresponding rcu_head in struct xfrm_policy.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-11 19:22:06 -05:00
Pablo Neira Ayuso d3340b79ec netfilter: nf_dup: add missing dependencies with NF_CONNTRACK
CONFIG_NF_CONNTRACK=m
CONFIG_NF_DUP_IPV4=y

results in:

   net/built-in.o: In function `nf_dup_ipv4':
>> (.text+0xd434f): undefined reference to `nf_conntrack_untracked'

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-12-10 18:17:06 +01:00
Pablo Neira Ayuso bd678e09dc netfilter: nfnetlink: fix splat due to incorrect socket memory accounting in skbuff clones
If we attach the sk to the skb from nfnetlink_rcv_batch(), then
netlink_skb_destructor() will underflow the socket receive memory
counter and we get warning splat when releasing the socket.

$ cat /proc/net/netlink
sk       Eth Pid    Groups   Rmem     Wmem     Dump     Locks     Drops     Inode
ffff8800ca903000 12  0      00000000 -54144   0        0 2        0        17942
                                     ^^^^^^

Rmem above shows an underflow.

And here below the warning splat:

[ 1363.815976] WARNING: CPU: 2 PID: 1356 at net/netlink/af_netlink.c:958 netlink_sock_destruct+0x80/0xb9()
[...]
[ 1363.816152] CPU: 2 PID: 1356 Comm: kworker/u16:1 Tainted: G        W       4.4.0-rc1+ #153
[ 1363.816155] Hardware name: LENOVO 23259H1/23259H1, BIOS G2ET32WW (1.12 ) 05/30/2012
[ 1363.816160] Workqueue: netns cleanup_net
[ 1363.816163]  0000000000000000 ffff880119203dd0 ffffffff81240204 0000000000000000
[ 1363.816169]  ffff880119203e08 ffffffff8104db4b ffffffff813d49a1 ffff8800ca771000
[ 1363.816174]  ffffffff81a42b00 0000000000000000 ffff8800c0afe1e0 ffff880119203e18
[ 1363.816179] Call Trace:
[ 1363.816181]  <IRQ>  [<ffffffff81240204>] dump_stack+0x4e/0x79
[ 1363.816193]  [<ffffffff8104db4b>] warn_slowpath_common+0x9a/0xb3
[ 1363.816197]  [<ffffffff813d49a1>] ? netlink_sock_destruct+0x80/0xb9

skb->sk was only needed to lookup for the netns, however we don't need
this anymore since 633c9a840d ("netfilter: nfnetlink: avoid recurrent
netns lookups in call_batch") so this patch removes this manual socket
assignment to resolve this problem.

Reported-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Tested-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
2015-12-10 18:16:29 +01:00
Pablo Neira Ayuso 633c9a840d netfilter: nfnetlink: avoid recurrent netns lookups in call_batch
Pass the net pointer to the call_batch callback functions so we can skip
recurrent lookups.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Tested-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
2015-12-10 13:49:24 +01:00
Nikolay Borisov 639e077b43 netfilter: nfnetlink_queue: Unregister pernet subsys in case of init failure
Commit 3bfe049807 ("netfilter: nfnetlink_{log,queue}:
Register pernet in first place") reorganised the initialisation
order of the pernet_subsys to avoid "use-before-initialised"
condition. However, in doing so the cleanup logic in nfnetlink_queue
got botched in that the pernet_subsys wasn't cleaned in case
nfnetlink_subsys_register failed. This patch adds the necessary
cleanup routine call.

Fixes: 3bfe049807 ("netfilter: nfnetlink_{log,queue}: Register pernet in first place")
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-12-09 14:46:47 +01:00
Arnd Bergmann b0a8d1a0b6 net: ezchip: fix address space confusion in nps_enet.c
The nps_enet driver happily mixes virtual, physical and __iomem
addresses, which are all different depending on the architecture
and configuration.  That causes a warning when building the code
on ARM with LPAE mode enabled:

drivers/net/ethernet/ezchip/nps_enet.c: In function 'nps_enet_send_frame':
drivers/net/ethernet/ezchip/nps_enet.c:370:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

but will also fail to work for other reasons.

In this patch, I'm trying to change the code to use only normal
kernel pointers, which I assume is what the author actually meant:

* For reading or writing a 32-bit word that may be unaligned when
  an SKB contains unaligned data, I'm using get_unaligned/put_unaligned()
  rather than memcpy_fromio/toio.

* For converting a u8 pointer to a u32 pointer, I use a cast rather
  than the incorrect virt_to_phys.

* For copying a couple of bytes from one place to another while respecting
  alignment, I use memcpy instead of memcpy_toio.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-08 22:58:01 -05:00
Arnd Bergmann 8cde3e4425 net: fsl: avoid 64-bit warning on pq_mdio
The pq_mdio driver can now be built for ARM64, where we get a format
string warning:

drivers/net/ethernet/freescale/fsl_pq_mdio.c: In function 'fsl_pq_mdio_probe':
drivers/net/ethernet/freescale/fsl_pq_mdio.c:467:25: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'long int' [-Wformat=]

The argument is an implicit ptrdiff_t from the subtraction of two pointers,
so we should use the %z format string modifier to make this work on 64-bit
architectures.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: fe761bcb90 ("net: fsl: expands dependencies of NET_VENDOR_FREESCALE")
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-08 22:51:56 -05:00
Peter Wu 90186af404 r8152: fix lockup when runtime PM is enabled
When an interface is brought up which was previously suspended (via
runtime PM), it would hang. This happens because napi_disable is called
before napi_enable.

Solve this by avoiding napi_enable in the resume during open function
(netif_running is true when open is called, IFF_UP is set after a
successful open; netif_running is false when close is called, but IFF_UP
is then still set).

While at it, remove WORK_ENABLE check from rtl8152_open (introduced with
the original change) because it cannot happen:

 - After this patch, runtime resume will not set it during rtl8152_open.
 - When link is up, rtl8152_open is not called.
 - When link is down during system/auto suspend/resume, it is not set.

Fixes: 41cec84cf2 ("r8152: don't enable napi before rx ready")
Link: https://lkml.kernel.org/r/20151205105912.GA1766@al
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-08 22:48:01 -05:00
Pavel Fedin f406ce4234 net: thunderx: Correctly distinguish between VF and LMAC count
Commit bc69fdfc6c
("net: thunderx: Enable BGX LMAC's RX/TX only after VF is up")
introduces lmac_cnt member and starts verifying VF number against it.
This is plain wrong, and works only because currently we have hardcoded
1:1 mapping between VFs and LMACs, and in this case num_vf_en and
lmac_cnt are always equal. However in future this may change, and the
code will badly misbehave. The worst consequence of this is failure to
deliver link status messages, causing VFs to go defunct because since
commit 0b72a9a106 ("net: thunderx: Switchon carrier only upon
interface link up") VF will not fully bring itself up without it.

This patch fixes the potential problem by doing VF number checks against
the num_vf_en. Since lmac_cnt is not used anywhere else, it is removed.

Additionally some duplicated code is factored out into nic_enable_vf()

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-08 22:44:55 -05:00
Pravin B Shelar a322a1bcf3 geneve: Fix IPv6 xmit stats update.
Call to iptunnel_xmit_stats() is not required after udp-tunnel6-xmit.
By calling iptunnel_xmit_stats() results in incorrect device stats.
Following patch drops this call.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-08 22:39:03 -05:00
Eric Dumazet bd5eb35f16 xfrm: take care of request sockets
TCP SYNACK messages might now be attached to request sockets.

XFRM needs to get back to a listener socket.

Adds new helpers that might be used elsewhere :
sk_to_full_sk() and sk_const_to_full_sk()

Note: We also need to add RCU protection for xfrm lookups,
now TCP/DCCP have lockless listener processing. This will
be addressed in separate patches.

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 17:07:33 -05:00
Eric Dumazet 69ce6487dc ipv6: sctp: fix lockdep splat in sctp_v6_get_dst()
While cooking the sctp np->opt rcu fixes, I forgot to move
one rcu_read_unlock() after the added rcu_dereference() in
sctp_v6_get_dst()

This gave lockdep warnings reported by Dave Jones.

Fixes: c836a8ba93 ("ipv6: sctp: add rcu protection around np->opt")
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 17:07:33 -05:00
Jiri Benc ce212d0f6f vxlan: interpret IP headers for ECN correctly
When looking for outer IP header, use the actual socket address family, not
the address family of the default destination which is not set for metadata
based interfaces (and doesn't have to match the address family of the
received packet even if it was set).

Fix also the misleading comment.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 17:06:33 -05:00
David S. Miller 0c9cd7c433 Included changes:
- prevent compatibility issue between DAT and speedy join from creating
   inconsistencies in the global translation table
 - make sure temporary TT entries are purged out if not claimed
 - fix comparison function used for TT hash table
 - fix invalid stack access in batadv_dat_select_candidates()
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJWZZqMAAoJENpFlCjNi1MRPg4P/Rq04JLU51tzIYnC7dmkcKjY
 L0qFTF4C4FjRzyeDH7d7GwfDJAu/AN/sCw/N0UzkBQ8qlGmtM5pkyTglr12w2axT
 V2LalU8nR+VIqL/DvCmMAPthwRsXfAXAkwiKEPCbKp9GHOKuVF9uIC+UQP0V0HQE
 6qKVii1j/IhVJWa30LrP8Uk/W4Ji55oB/oGBH4ggbWf0YWnaSldldfGGjtEY0JVd
 dfcOyTCYX3NiGs9QB5HRz2NDhc0t1u0CWTTaM1n5w7l2ejlUH6JYwqOfAr5Q5STt
 C265KonUeZCfq/ktzcEZ9c0NWHy8OePHA2anO1e5zPV/TwXNsSb50AnAHslaA7Fd
 vgZ3svTjhxowU20P21gMYOJGlUpmjMx+klBEcd0rAKEZHjcq2IFLS4LA6I8en8o4
 XtcJLj1Rrk/4XV9BntOlLVIfrA8TKH7B/vjAkbLa45WbH74B1V1sODmGxIv4mUVs
 Vhe5lTyPktKFhducU0g4jDIg+Up07JIrMKs9/9TXWXuXf4tH255yg42dYSCOoqQD
 4haKbUqQN90KvR1/cKGtkwpq0BlZq75RW4+SFtsUUZbdZyZNGx2zgR8g5e1owdN2
 1I4c2XAsTbJMEaB86hsNWv/goy0H57dn4SNwi34BJr6OADfcorr2qGd4LRrTDUaL
 hpwirVIN0SiaEz9krwDW
 =tH3+
 -----END PGP SIGNATURE-----

Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge

Antonio Quartulli says:

====================
Included changes:
- prevent compatibility issue between DAT and speedy join from creating
  inconsistencies in the global translation table
- make sure temporary TT entries are purged out if not claimed
- fix comparison function used for TT hash table
- fix invalid stack access in batadv_dat_select_candidates()
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 16:59:19 -05:00
Robert Shearman fe82b3300e mpls: fix sending of local encapped packets
Locally generated IPv4 and (probably) IPv6 packets are dropped because
skb->protocol isn't set. We could write wrappers to lwtunnel_output
for IPv4 and IPv6 that set the protocol accordingly and then call
lwtunnel_output, but mpls_output relies on the AF-specific type of dst
anyway to get the via address.

Therefore, make use of dst->dst_ops->family in mpls_output to
determine the type of nexthop and thus protocol of the packet instead
of checking skb->protocol.

Fixes: 61adedf3e3 ("route: move lwtunnel state to dst_entry")
Reported-by: Sam Russell <sam.h.russell@gmail.com>
Signed-off-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 16:32:47 -05:00
David S. Miller d445ed9bd7 Merge branch 'vxlan-ipv6-metadata-dst'
Jiri Benc says:

====================
vxlan: IPv6 fill_metadata_dst support

This adds IPv6 support to ndo_fill_metadata_dst in vxlan. The IPv4 part
needs some restructuring to avoid duplicate code, this will be sent as
a separate patch targeting net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 16:31:25 -05:00
Jiri Benc 239e944ff5 vxlan: support ndo_fill_metadata_dst also for IPv6
Fill the metadata correctly even when tunneling over IPv6. Also, check that
the provided metadata is of an address family that is supported by the
tunnel.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 16:31:25 -05:00
Jiri Benc e5d4b29fe8 vxlan: move IPv6 outpute route calculation to a function
Will be used also for ndo_fill_metadata_dst.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 16:31:24 -05:00
David S. Miller 23bd51e0f0 Merge branch 'qed-fixes'
Manish Chopra says:

====================
qed: Bug fixes

Please consider applying this series to net.

V2:
- Use available helpers for declaring bitmap
  and bitmap operations.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 14:14:05 -05:00
Sudarsana Kalluru 8f16bc97fa qed: Correct slowpath interrupt scheme
When using INTa, ISR might be called before device is configured
for INTa [E.g., due to other device asserting the shared interrupt line],
in which case the ISR would read the SISR registers that shouldn't be
read unless HW is already configured for INTa. This might break interrupts
later on. There's also an MSI-X issue due to this difference, although
it's mostly theoretical.

This patch changes the initialization order, calling request_irq() for the
slowpath interrupt only after the chip is configured for working
in the preferred interrupt mode.

Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 14:14:04 -05:00
Ariel Elior c78df14ee0 qed: Fix BAR size split for some servers
Can't rely on pci config space to discover bar size,
as in some environments this returns a wrong, too large value.
Instead, rely on device register, which contains the value
provided by MFW at preboot.

Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 14:14:04 -05:00
Tomer Tayar 76a9a3642a qed: fix handling of concurrent ramrods.
Concurrent non-blocking slowpath ramrods can be completed
out-of-order on the completion chain. Recycling completed elements,
while previously sent elements are still completion pending,
can lead to overriding of active elements on the chain. Furthermore,
sending pending slowpath ramrods currently lacks the update of the
chain element physical pointer.

This patch:
* Ensures that ramrods are sent to the FW with
  consecutive echo values.
* Handles out-of-order completions by freeing only first
  successive completed entries.
* Updates the chain element physical pointer when copying
  a pending element into a free element for sending.

Signed-off-by: Tomer Tayar <Tomer.Tayar@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 14:14:03 -05:00
Tomer Tayar 4639d60d2b qed: Fix corner case for chain in-between pages
The amount of chain next pointer elements between the producer
and the consumer indices depends on which pages they currently
point to. The current calculation is based only on their difference,
and it can lead to a number of free elements which is higher by 1
than the actual value.

Signed-off-by: Tomer Tayar <Tomer.Tayar@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 14:14:03 -05:00
Geert Uytterhoeven 4675390a9e ethernet: aurora: AURORA_NB8800 should depend on HAS_DMA
If NO_DMA=y:

    ERROR: "dma_map_single" [drivers/net/ethernet/aurora/nb8800.ko] undefined!
    ERROR: "dma_unmap_page" [drivers/net/ethernet/aurora/nb8800.ko] undefined!
    ERROR: "dma_sync_single_for_cpu" [drivers/net/ethernet/aurora/nb8800.ko] undefined!
    ERROR: "dma_unmap_single" [drivers/net/ethernet/aurora/nb8800.ko] undefined!
    ERROR: "dma_alloc_coherent" [drivers/net/ethernet/aurora/nb8800.ko] undefined!
    ERROR: "dma_mapping_error" [drivers/net/ethernet/aurora/nb8800.ko] undefined!
    ERROR: "dma_map_page" [drivers/net/ethernet/aurora/nb8800.ko] undefined!
    ERROR: "dma_free_coherent" [drivers/net/ethernet/aurora/nb8800.ko] undefined!

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-07 13:54:35 -05:00
Sven Eckelmann b7fe3d4f4a batman-adv: Fix invalid stack access in batadv_dat_select_candidates
batadv_dat_select_candidates provides an u32 to batadv_hash_dat but it
needs a batadv_dat_entry with at least ip and vid filled in.

Fixes: 3e26722bc9f2 ("batman-adv: make the Distributed ARP Table vlan aware")
Signed-off-by: Sven Eckelmann <sven@open-mesh.com>
Acked-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
2015-12-07 22:40:21 +08:00
Marek Lindner 4c71895830 batman-adv: fix erroneous client entry duplicate detection
The translation table implementation, namely batadv_compare_tt(),
is used to compare two client entries and deciding if they are the
holding the same information. Each client entry is identified by
its mac address and its VLAN id (VID).
Consequently, batadv_compare_tt() has to not only compare the mac
addresses but also the VIDs.

Without this fix adding a new client entry that possesses the same
mac address as another client but operates on a different VID will
fail because both client entries will considered identical.

Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
2015-12-07 22:40:21 +08:00