ipv4: fix DO and PROBE pmtu mode regarding local fragmentation with UFO/CORK
UFO as well as UDP_CORK do not respect IP_PMTUDISC_DO and
IP_PMTUDISC_PROBE well enough.
UFO enabled packet delivery just appends all frags to the cork and hands
it over to the network card. So we just deliver non-DF udp fragments
(DF-flag may get overwritten by hardware or virtual UFO enabled
interface).
UDP_CORK does enqueue the data until the cork is disengaged. At this
point it sets the correct IP_DF and local_df flags and hands it over to
ip_fragment which in this case will generate an icmp error which gets
appended to the error socket queue. This is not reflected in the syscall
error (of course, if UFO is enabled this also won't happen).
Improve this by checking the pmtudisc flags before appending data to the
socket and if we still can fit all data in one packet when IP_PMTUDISC_DO
or IP_PMTUDISC_PROBE is set, only then proceed.
We use (mtu-fragheaderlen) to check for the maximum length because we
ensure not to generate a fragment and non-fragmented data does not need
to have its length aligned on 64 bit boundaries. Also the passed in
ip_options are already aligned correctly.
Maybe, we can relax some other checks around ip_fragment. This needs
more research.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Dalton [Mon, 28 Oct 2013 22:44:18 +0000 (15:44 -0700)]
virtio_net: migrate mergeable rx buffers to page frag allocators
The virtio_net driver's mergeable receive buffer allocator
uses 4KB packet buffers. For MTU-sized traffic, SKB truesize
is > 4KB but only ~1500 bytes of the buffer is used to store
packet data, reducing the effective TCP window size
substantially. This patch addresses the performance concerns
with mergeable receive buffers by allocating MTU-sized packet
buffers using page frag allocators. If more than MAX_SKB_FRAGS
buffers are needed, the SKB frag_list is used.
Signed-off-by: Michael Dalton <mwdalton@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 29 Oct 2013 00:07:50 +0000 (20:07 -0400)]
ipv6: Remove privacy config option.
The code for privacy extentions is very mature, and making it
configurable only gives marginal memory/code savings in exchange
for obfuscation and hard to read code via CPP ifdef'ery.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 28 Oct 2013 23:48:29 +0000 (19:48 -0400)]
Merge branch '6lowpan'
Alexander Aring says:
====================
6lowpan: trivial changes
This patch series includes some trivial changes to prepare the 6lowpan stack
for upcomming patch-series which mainly fix fragmentation according to rfc4944
and udp handling(which is currently broken).
Changes since v3:
- really fix intendation in patch 3/5
Changes since v2:
- change intendation in patch 3/5
- fix typo in 5/5 unecessary -> unnecessary
- add missing 6lowpan tag in cover-letter
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Mon, 28 Oct 2013 09:24:20 +0000 (10:24 +0100)]
6lowpan: remove unnecessary break
Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Mon, 28 Oct 2013 09:24:19 +0000 (10:24 +0100)]
6lowpan: remove skb->dev assignment
This patch removes the assignment of skb->dev. We don't need it here because
we use the netdev_alloc_skb_ip_align function which already sets the
skb->dev.
Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Mon, 28 Oct 2013 09:24:18 +0000 (10:24 +0100)]
6lowpan: use netdev_alloc_skb instead dev_alloc_skb
This patch uses the netdev_alloc_skb instead dev_alloc_skb function and
drops the seperate assignment to skb->dev.
Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Mon, 28 Oct 2013 09:24:17 +0000 (10:24 +0100)]
6lowpan: remove unnecessary check on err >= 0
The err variable can only be zero in this case.
Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Aring [Mon, 28 Oct 2013 09:24:16 +0000 (10:24 +0100)]
6lowpan: remove unnecessary ret variable
Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
wangweidong [Sat, 26 Oct 2013 08:06:31 +0000 (16:06 +0800)]
sctp: remove the repeat initialize with 0
kmem_cache_zalloc had set the allocated memory to zero. I think no need
to initialize with 0. And move the comments to the function begin.
Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
wangweidong [Sat, 26 Oct 2013 08:06:30 +0000 (16:06 +0800)]
sctp: fix some comments in chunk.c and associola.c
fix some typos
Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 28 Oct 2013 01:18:16 +0000 (18:18 -0700)]
inet: restore gso for vxlan
Alexei reported a performance regression on vxlan, caused
by commit 3347c9602955 "ipv4: gso: make inet_gso_segment() stackable"
GSO vxlan packets were not properly segmented, adding IP fragments
while they were not expected.
Rename 'bool tunnel' to 'bool encap', and add a new boolean
to express the fact that UDP should be fragmented.
This fragmentation is triggered by skb->encapsulation being set.
Remove a "skb->encapsulation = 1" added in above commit,
as its not needed, as frags inherit skb->frag from original
GSO skb.
Reported-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Tested-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Fri, 25 Oct 2013 05:10:16 +0000 (10:40 +0530)]
be2net: add support for ndo_busy_poll
Includes:
- ndo_busy_poll implementation
- Locking between napi and busy_poll
- Fix rx_post_starvation (replenish rx-queues in out-of-mememory scenario)
logic to accomodate busy_poll.
v2 changes:
[Eric D.'s comment] call alloc_pages() with GFP_ATOMIC even in ndo_busy_poll
context as it is not allowed to sleep.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 27 Oct 2013 20:36:39 +0000 (16:36 -0400)]
Merge branch 'bonding_monitor_locking'
Ding Tianhong says:
====================
bonding: patchset for rcu use in bonding
The slave list will add and del by bond_master_upper_dev_link() and
bond_upper_dev_unlink(), which will call call_netdevice_notifiers(),
even it is safe to call it in write bond lock now, but we can't sure
that whether it is safe later, because other drivers may deal
NETDEV_CHANGEUPPER in sleep way, so I didn't admit move the
bond_upper_dev_unlink() in write bond lock.
now the bond_for_each_slave only protect by rtnl_lock(), maybe use
bond_for_each_slave_rcu is a good way to protect slave list for bond,
but as a system slow path, it is no need to transform
bond_for_each_slave() to bond_for_each_slave_rcu() in slow path, so in
the patchset, I will remove the unused read bond lock for monitor
function, maybe it is a better way, I will wait to accept any relay
for it.
Thanks for the Veaceslav Falico opinion.
v2: add and modify commit for patchset and patch, it will be the first
step for the whole patchset.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
dingtianhong [Thu, 24 Oct 2013 03:09:31 +0000 (11:09 +0800)]
bonding: remove bond read lock for bond_3ad_state_machine_handler()
The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and move the rtnl lock to protect the whole monitor function.
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
dingtianhong [Thu, 24 Oct 2013 03:09:25 +0000 (11:09 +0800)]
bonding: remove bond read lock for bond_activebackup_arp_mon()
The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and move the rtnl lock to protect the whole monitor function.
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
dingtianhong [Thu, 24 Oct 2013 03:09:17 +0000 (11:09 +0800)]
bonding: remove bond read lock for bond_loadbalance_arp_mon()
The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and add the rtnl lock to protect the whole monitor function.
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
dingtianhong [Thu, 24 Oct 2013 03:09:12 +0000 (11:09 +0800)]
bonding: remove bond read lock for bond_alb_monitor()
The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and move the rtnl lock to protect the whole monitor function.
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
dingtianhong [Thu, 24 Oct 2013 03:09:03 +0000 (11:09 +0800)]
bonding: remove bond read lock for bond_mii_monitor()
The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and move the rtnl lock to protect the whole monitor function.
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 26 Oct 2013 04:28:35 +0000 (00:28 -0400)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates
This series contains updates to igb, igbvf, i40e, ixgbe and ixgbevf.
Dan Carpenter provides a patch for igbvf to fix a bug found by a static
checker. If the new MTU is very large, then "new_mtu + ETH_HLEN +
ETH_FCS_LEN" can wrap and the check on the next line can underflow.
Wei Yongjun provides 2 patches, the first against igbvf adds a missing
iounmap() before the return from igbvf_probe(). The second against
i40e, removes the include <linux/version.h> because it is not needed.
Carolyn provides a patch for igb to fix a call to set the master/slave
mode for all m88 generation 2 PHY's and removes the call for I210
devices which do not need it.
Stefan Assmann provides a patch for igb to fix an issue which was broke
by:
commit fa44f2f185f7f9da19d331929bb1b56c1ccd1d93
Author: Greg Rose <gregory.v.rose@intel.com>
Date: Thu Jan 17 01:03:06 2013 -0800
igb: Enable SR-IOV configuration via PCI sysfs interface
which breaks the reloading of igb when VFs are assigned to a guest, in
several ways.
Jacob provides a patch for ixgbe and ixgbevf. First, against ixgbe,
cleans up ixgbe_enumerate_functions to reduce code complexity. The
second, against ixgbevf, adds support for ethtool's get_coalesce and
set_coalesce command for the ixgbevf driver.
Yijing Wang provides a patch for ixgbe to use pcie_capability_read_word()
to simplify the code.
Emil provides a ixgbe patch to fix an issue where the logic used to
detect changes in rx-usecs was incorrect and was masked by the call to
ixgbe_update_rsc().
Don provides 2 patches for ixgbevf. First creates a new function to set
PSRTYPE. The second bumps the ixgbevf driver version.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 991fb3f74c "dev: always advertise rx_flags changes via netlink"
introduced rtnl notification from __dev_set_promiscuity(),
which can be called in atomic context.
Steps to reproduce:
ip tuntap add dev tap1 mode tap
ifconfig tap1 up
tcpdump -nei tap1 &
ip tuntap del dev tap1 mode tap
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: initialize hashrnd in flow_dissector with net_get_random_once
We also can defer the initialization of hashrnd in flow_dissector
to its first use. Since net_get_random_once is irq safe now we don't
have to audit the call paths if one of this functions get called by an
interrupt handler.
Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
I initial build non irq safe version of net_get_random_once because I
would liked to have the freedom to defer even the extraction process of
get_random_bytes until the nonblocking pool is fully seeded.
I don't think this is a good idea anymore and thus this patch makes
net_get_random_once irq safe. Now someone using net_get_random_once does
not need to care from where it is called.
Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
net: add missing dev_put() in __netdev_adjacent_dev_insert
I think that a dev_put() is needed in the error path to preserve the
proper dev refcount.
CC: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Acked-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The transition from markov state "3 => lost packets within a burst
period" to "1 => successfully transmitted packets within a gap period"
has no *additional* loss event. The loss already happen for transition
from 1 -> 3, this additional loss will make things go wild.
E.g. transition probabilities:
p13: 10%
p31: 100%
Expected:
Ploss = p13 / (p13 + p31)
Ploss = ~9.09%
... but it isn't. Even worse: we get a double loss - each time.
So simple don't return true to indicate loss, rather break and return
false.
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Eric Dumazet <edumazet@google.com> Cc: Stefano Salsano <stefano.salsano@uniroma2.it> Cc: Fabio Ludovici <fabio.ludovici@yahoo.it> Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Don Skidmore [Sat, 21 Sep 2013 05:21:18 +0000 (05:21 +0000)]
ixgbevf: bump driver version
Bump patch to reflect what version of the out of tree driver it has
equivalent functionality with (2.11.3).
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Tue, 22 Oct 2013 06:19:18 +0000 (06:19 +0000)]
ixgbevf: implement ethtool get/set coalesce
This patch adds support for ethtool's get_coalesce and set_coalesce command for
the ixgbevf driver. This enables dynamically updating the minimum time between
interrupts.
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>
Don Skidmore [Sat, 21 Sep 2013 01:57:33 +0000 (01:57 +0000)]
ixgbevf: Adds function to set PSRTYPE register
This patch creates a new function to set PSRTYPE. This function helps lay
the ground work for eventual multi queue support.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Emil Tantilov [Tue, 22 Oct 2013 08:21:04 +0000 (08:21 +0000)]
ixgbe: fix rx-usecs range checks for BQL
This patch resolves an issue where the logic used to detect changes in rx-usecs
was incorrect and was masked by the call to ixgbe_update_rsc().
Setting rx-usecs between 0,2-9 and 1,10 and up requires a reset to allow
ixgbe_configure_tx_ring() to set the correct value for TXDCTL.WTHRESH in
order to avoid Tx hangs with BQL enabled.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Yijing Wang [Wed, 4 Sep 2013 17:30:08 +0000 (17:30 +0000)]
ixgbe: use pcie_capability_read_word() to simplify code
use pcie_capability_read_word() to simplify code.
Signed-off-by: Yijing Wang <wangyijing@huawei.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Sat, 31 Aug 2013 02:45:38 +0000 (02:45 +0000)]
ixgbe: cleanup ixgbe_enumerate_functions
This function previously had the same check as used by the
ixgbe_pcie_from_parent. As the hardcode is due to the device having an internal
switch, this function should simply use the call from ixgbe_pcie_from_parent.
This reduces code complexity and makes it less likely a developer will forget
to update the list in the future.
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>
Stefan Assmann [Tue, 24 Sep 2013 05:18:39 +0000 (05:18 +0000)]
igb: fix driver reload with VF assigned to guest
commit fa44f2f185f7f9da19d331929bb1b56c1ccd1d93 broke reloading of igb, when
VFs are assigned to a guest, in several ways.
1. on module load adapter->vf_data does not get properly allocated,
resulting in a null pointer exception when accessing adapter->vf_data in
igb_reset() on module reload.
modprobe -r igb ; modprobe igb max_vfs=7
[ 215.215837] igb 0000:01:00.1: removed PHC on eth1
[ 216.932072] igb 0000:01:00.1: IOV Disabled
[ 216.937038] igb 0000:01:00.0: removed PHC on eth0
[ 217.127032] igb 0000:01:00.0: Cannot deallocate SR-IOV virtual functions while they are assigned - VFs will not be deallocated
[ 217.146178] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.0.5-k
[ 217.154050] igb: Copyright (c) 2007-2013 Intel Corporation.
[ 217.160688] igb 0000:01:00.0: Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.
[ 217.173703] igb 0000:01:00.0: irq 103 for MSI/MSI-X
[ 217.179227] igb 0000:01:00.0: irq 104 for MSI/MSI-X
[ 217.184735] igb 0000:01:00.0: irq 105 for MSI/MSI-X
[ 217.220082] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
[ 217.228846] IP: [<ffffffffa007c5e5>] igb_reset+0xc5/0x4b0 [igb]
[ 217.235472] PGD 3607ec067 PUD 36170b067 PMD 0
[ 217.240461] Oops: 0002 [#1] SMP
[ 217.244085] Modules linked in: igb(+) igbvf mptsas mptscsih mptbase scsi_transport_sas [last unloaded: igb]
[ 217.255040] CPU: 4 PID: 4833 Comm: modprobe Not tainted 3.11.0+ #46
[...]
[ 217.390007] [<ffffffffa007fab2>] igb_probe+0x892/0xfd0 [igb]
[ 217.396422] [<ffffffff81470b3e>] local_pci_probe+0x1e/0x40
[ 217.402641] [<ffffffff81472029>] pci_device_probe+0xf9/0x110
[...]
2. A follow up issue, pci_enable_sriov() should only be called if no VFs were
still allocated on module unload. Otherwise pci_enable_sriov() gets called
multiple times in a row rendering the NIC unusable until reset.
3. simply calling igb_enable_sriov() in igb_probe_vfs() is not enough as the
interrupts need to be re-setup. Switching that to igb_pci_enable_sriov().
Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Tested-by: Sibai Li <Sibai.li@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Carolyn Wyborny [Fri, 16 Aug 2013 00:39:10 +0000 (00:39 +0000)]
igb: Fix master/slave mode for all m88 i354 PHY's
This patch calls code to set the master/slave mode for all m88 gen 2
PHY's. This patch also removes the call to this function for I210 devices
only from the function that is not called by I210 devices.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@gmail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Dan Carpenter [Fri, 13 Sep 2013 20:44:20 +0000 (20:44 +0000)]
igbvf: integer wrapping bug setting the mtu
If new_mtu is very large then "new_mtu + ETH_HLEN + ETH_FCS_LEN" can
wrap and the check on the next line can underflow. This is one of those
bugs which can be triggered by the user if you have namespaces
configured.
Also since this is something the user can trigger then we don't want to
have dev_err() message.
This is a static checker fix and I'm not sure what the impact is.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Tested-by: Sibai Li Sibai.li@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
David S. Miller [Wed, 23 Oct 2013 21:12:33 +0000 (17:12 -0400)]
Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
Antonio Quartulli says:
====================
this is another set of changes intended for net-next/linux-3.13.
(probably our last pull request for this cycle)
Patches 1 and 2 reshape two of our main data structures in a way that they can
easily be extended in the future to accommodate new routing protocols.
Patches from 3 to 9 improve our routing protocol API and its users so that all
the protocol-related code is not mixed up with the other components anymore.
Patch 10 limits the local Translation Table maximum size to a value such that it
can be fully transfered over the air if needed. This value depends on
fragmentation being enabled or not and on the mtu values.
Patch 11 makes batman-adv send a uevent in case of soft-interface destruction
while a "bat-Gateway" was configured (this informs userspace about the GW not
being available anymore).
Patches 13 and 14 enable the TT component to detect non-mesh client flag
changes at runtime (till now those flags where set upon client detection and
were not changed anymore).
Patch 16 is a generalisation of our user-to-kernel space communication (and
viceversa) used to exchange ICMP packets to send/received to/from the mesh
network. Now it can easily accommodate new ICMP packet types without breaking
the existing userspace API anymore.
Remaining patches are minor changes and cleanups.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 Oct 2013 21:01:51 +0000 (17:01 -0400)]
Merge branch 'frag_hash_secret'
Hannes Frederic Sowa says:
====================
initialize fragment hash secrets with net_get_random_once
This series switches the inet_frag.rnd hash initialization to
net_get_random_once.
Included patches:
ipv4: initialize ip4_frags hash secret as late
ipv6: split inet6_hash_frag for netfilter and
inet: remove old fragmentation hash initializing
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
All fragmentation hash secrets now get initialized by their
corresponding hash function with net_get_random_once. Thus we can
eliminate the initial seeding.
Also provide a comment that hash secret seeding happens at the first
call to the corresponding hashing function.
Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
ipv6: split inet6_hash_frag for netfilter and initialize secrets with net_get_random_once
Defer the fragmentation hash secret initialization for IPv6 like the
previous patch did for IPv4.
Because the netfilter logic reuses the hash secret we have to split it
first. Thus introduce a new nf_hash_frag function which takes care to
seed the hash secret.
Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
ipv4: initialize ip4_frags hash secret as late as possible
Defer the generation of the first hash secret for the ipv4 fragmentation
cache as late as possible.
ip4_frags.rnd gets initial seeded by inet_frags_init and regulary
reseeded by inet_frag_secret_rebuild. Either we call ipqhashfn directly
from ip_fragment.c in which case we initialize the secret directly.
If we first get called by inet_frag_secret_rebuild we install a new secret
by a manual call to get_random_bytes. This secret will be overwritten
as soon as the first call to ipqhashfn happens. This is safe because we
won't race while publishing the new secrets with anyone else.
Cc: Eric Dumazet <edumazet@google.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 Oct 2013 20:58:52 +0000 (16:58 -0400)]
Merge branch 'pci_set_drvdata'
Jingoo Han syas:
====================
ethernet: remove unnecessary pci_set_drvdata() part 4
Since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound),
the driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jingoo Han [Wed, 23 Oct 2013 07:08:32 +0000 (16:08 +0900)]
net: tlan: remove unnecessary pci_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jingoo Han [Wed, 23 Oct 2013 07:07:51 +0000 (16:07 +0900)]
net: tehuti: remove unnecessary pci_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jingoo Han [Wed, 23 Oct 2013 07:07:19 +0000 (16:07 +0900)]
net: niu: remove unnecessary pci_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jingoo Han [Wed, 23 Oct 2013 07:06:54 +0000 (16:06 +0900)]
net: sungem: remove unnecessary pci_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Sergei Shtylyov [Tue, 15 Oct 2013 22:29:58 +0000 (02:29 +0400)]
sh_eth: add/use RMCR.RNC bit
Declare 'enum RMCR_BIT' containing the single member for the RMCR.RNC bit and
replace bare numbers in the driver by this mnemonic.
Suggested-by: David Miller <davem@davemloft.net> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Currently net_secret_init does not get inlined, so we always have a call
to net_secret_init even in the fast path.
Let's specify net_secret_init as __always_inline so we have the nop in
the fast-path without the call to net_secret_init and the unlikely path
at the epilogue of the function.
jump_labels handle the inlining correctly.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Christoph Paasch [Wed, 23 Oct 2013 19:49:21 +0000 (12:49 -0700)]
net: Dereference pointer-value of sk_prot->memory_pressure
2e685cad57 (tcp_memcontrol: Kill struct tcp_memcontrol) falsly modified
the access to memory_pressure of sk->sk_prot->memory_pressure. The patch
did modify the memory_pressure-field of struct cg_proto, but not the one
of struct proto.
So, the access to sk_prot->memory_pressure should not be changed.
Acked-by: Eric Dumazet <edumazet@google.com> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of handling icmp packets only up to length of icmp_packet_rr,
the code should handle any icmp length size. Therefore the length
truncating is moved to when the packet is actually sent to userspace
(this does not support lengths longer than icmp_packet_rr yet). Longer
packets are forwarded without truncating.
This patch also cleans up some parts where the icmp header struct could
be used instead of other icmp_packet(_rr) structs to make the code more
readable.
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
batman-adv: include the sync-flags when compute the global/local table CRC
Flags covered by TT_SYNC_MASK are kept in sync among the
nodes in the network and therefore they have to be
considered while computing the global/local table CRC.
In this way a generic originator is able to understand if
its table contains the correct flags or not.
Bits from 4 to 7 in the TT flags fields are now reserved for
"synchronized" flags only.
This allows future developers to add more flags of this type
without breaking compatibility.
It's important to note that not all the remote TT flags are
synchronised. This comes from the fact that some flags are
used to inject an information once only.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
batman-adv: improve the TT component to support runtime flag changes
Some flags (i.e. the WIFI flag) may change after that the
related client has already been announced. However it is
useful to informa the rest of the network about this change.
Add a runtime-flag-switch detection mechanism and
re-announce the related TT entry to advertise the new flag
value.
This mechanism can be easily exploited by future flags that
may need the same treatment.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
batman-adv: invoke dev_get_by_index() outside of is_wifi_iface()
Upcoming changes need to perform other checks on the
incoming net_device struct.
To avoid performing dev_get_by_index() for each and every
check, it is better to move it outside of is_wifi_iface()
and search the netdev object once only.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
batman-adv: send GW_DEL event in case of soft-iface destruction
In case of soft_iface destruction send a GW DEL event to
userspace so that applications which are listening for GW
events are informed about the lost of connectivity and can
react accordingly.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Marek Lindner [Mon, 27 May 2013 07:33:25 +0000 (15:33 +0800)]
batman-adv: limit local translation table max size
The local translation table size is limited by what can be
transferred from one node to another via a full table request.
The number of entries fitting into a full table request depend
on whether the fragmentation is enabled or not. Therefore this
patch introduces a max table size check and refuses to add
more local clients when that size is reached. Moreover, if the
max full table packet size changes (MTU change or fragmentation
is disabled) the local table is downsized instantaneously.
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Acked-by: Antonio Quartulli <ordex@autistici.org>
Some operations executed on an orig_node depends on the
current routing algorithm being used. To easily make this
mechanism routing algorithm agnostic add a orig_node
specific API that each algorithm can populate with its own
routines.
Such routines are then invoked by the code when needed,
without knowing which routing algorithm is currently in use
With this patch 3 API functions are added:
- orig_free (to free routing depending internal structs)
- orig_add_if (to change the inner state of an orig_node
when a new hard interface is added)
- orig_del_if (to change the inner state of an orig_node
when an hard interface is removed)
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
batman-adv: add bat_neigh_is_equiv_or_better API function
Each routing protocol has its own metric semantic and
therefore is the protocol itself the only component able to
compare two metrics to check their "similarity".
This new API allows each routing protocol to implement its
own logic and make the external code protocol agnostic.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
batman-adv: make struct batadv_orig_node algorithm agnostic
some of the struct batadv_orig_node members are B.A.T.M.A.N. IV
specific and therefore they are moved in a algorithm specific
substruct in order to make batadv_orig_node routing algorithm
agnostic
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
batman-adv: make struct batadv_neigh_node algorithm agnostic
some of the fields in struct batadv_neigh_node are strictly
related to the B.A.T.M.A.N. IV algorithm. In order to
make the struct usable by any routing algorithm it has to be
split and made more generic
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Linus Torvalds [Wed, 23 Oct 2013 07:10:25 +0000 (08:10 +0100)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Several last minute bug fixes.
Two of them are on the larger side for rc7, the dasd format patch for
older storage devices and the store-clock-fast patch where we have
been to optimistic with an optimization"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/time: correct use of store clock fast
s390/vmlogrdr: fix array access in vmlogrdr_open()
s390/compat,signal: fix return value of copy_siginfo_(to|from)_user32()
s390/dasd: check for availability of prefix command during format
s390/mm,kvm: fix software dirty bits vs. kvm for old machines
Linus Torvalds [Wed, 23 Oct 2013 06:58:22 +0000 (07:58 +0100)]
Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management fixes from Zhang Rui:
"These includes several commits that are necessary to properly fix
regression for TMU test MUX address setting after reset, for exynos
thermal driver.
Specifics:
- fix a regression that the removal of setting a certain field at TMU
configuration setting results in immediately shutdown after reset
on Exynos4412 SoC.
- revert a patch which tries to link the thermal_zone device and its
hwmon node but breaks libsensors.
- fix a deadlock/lockdep warning issue in x86_pkg_temp thermal
driver, which can be reproduced on a buggy platform only.
- fix ti-soc-thermal driver to fall back on bandgap reading when
reading from PCB temperature sensor fails"
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
Revert "drivers: thermal: parent virtual hwmon with thermal zone"
drivers: thermal: allow ti-soc-thermal run without pcb zone
thermal: exynos: Provide initial setting for TMU's test MUX address at Exynos4412
thermal: exynos: Provide separate TMU data for Exynos4412
thermal: exynos: Remove check for thermal device pointer at exynos_report_trigger()
Thermal: x86_pkg_temp: change spin lock
Linus Torvalds [Wed, 23 Oct 2013 06:52:36 +0000 (07:52 +0100)]
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- Compilation fixes for GCC < 4.4.6
- one Kbuild dependency select fix (selecting videobuf on msi3101)
- driver fixes on tda10071, e4000, msi3101, soc_camera, s5p-jpeg,
saa7134 and adv7511
- some device quirks needed to make them work properly
- some videobuf2 core regression fixes for some features used only on
embedded drivers
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] saa7134: Fix crash when device is closed before streamoff
[media] adv7511: fix error return code in adv7511_probe()
[media] ths8200: fix compilation with GCC < 4.4.6
[media] ad9389b: fix compilation with GCC < 4.4.6
[media] adv7511: fix compilation with GCC < 4.4.6
[media] adv7842: fix compilation with GCC < 4.4.6
[media] s5p-jpeg: Initialize vfd_decoder->vfl_dir field
[media] videobuf2-dc: Fix support for mappings without struct page in userptr mode
[media] vb2: Allow queuing OUTPUT buffers with zeroed 'bytesused'
[media] mx3-camera: locking cleanup in mx3_videobuf_queue()
[media] sh_vou: almost forever loop in sh_vou_try_fmt_vid_out()
[media] tda10071: change firmware download condition
[media] msi3101: correct max videobuf2 alloc
[media] Add HCL T12Rg-H to STK webcam upside-down table
[media] msi3101: Kconfig select VIDEOBUF2_VMALLOC
[media] msi3101: msi3101_ioctl_ops can be static
[media] e4000: fix PLL calc bug on 32-bit arch
[media] uvcvideo: quirk PROBE_DEF for Microsoft Lifecam NX-3000
[media] uvcvideo: quirk PROBE_DEF for Dell SP2008WFP monitor
Linus Torvalds [Wed, 23 Oct 2013 06:51:25 +0000 (07:51 +0100)]
Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband bugfix from Roland Dreier:
"Disable not-quite-ready userspace ABI for IB flow steering"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/core: Temporarily disable create_flow/destroy_flow uverbs
Pull networking fixes from David Miller:
"Sorry I let so much accumulate, I was in Buffalo and wanted a few
things to cook in my tree for a while before sending to you. Anyways,
it's a lot of little things as usual at this stage in the game"
1) Make bonding MAINTAINERS entry reflect reality, from Andy
Gospodarek.
2) Fix accidental sock_put() on timewait mini sockets, from Eric
Dumazet.
3) Fix crashes in l2tp due to mis-handling of ipv4 mapped ipv6
addresses, from François CACHEREUL.
4) Fix heap overflow in __audit_sockaddr(), from the eagle eyed Dan
Carpenter.
5) tcp_shifted_skb() doesn't take handle FINs properly, from Eric
Dumazet.
6) SFC driver bug fixes from Ben Hutchings.
7) Fix TX packet scheduling wedge after channel change in ath9k driver,
from Felix Fietkau.
8) Fix user after free in BPF JIT code, from Alexei Starovoitov.
9) Source address selection test is reversed in
__ip_route_output_key(), fix from Jiri Benc.
10) VLAN and CAN layer mis-size netlink attributes, from Marc
Kleine-Budde.
11) Fix permission checks in sysctls to use current_euid() instead of
current_uid(). From Eric W Biederman.
12) IPSEC policies can go away while a timer is still pending for them,
add appropriate ref-counting to fix, from Steffen Klassert.
13) Fix mis-programming of FDR and RMCR registers on R8A7740 sh_eth
chips, from Nguyen Hong Ky and Simon Horman.
14) MLX4 forgets to DMA unmap pages on RX, fix from Amir Vadai.
15) IPV6 GRE tunnel MTU upper limit is miscalculated, from Oussama
Ghorbel.
16) Fix typo in fq_change(), we were assigning "initial quantum" to
"quantum". From Eric Dumazet.
17) Set a more appropriate sk_pacing_rate for non-TCP sockets, otherwise
FQ packet scheduler does not pace those flows properly. Also from
Eric Dumazet.
18) rtlwifi miscalculates packet pointers, from Mark Cave-Ayland.
19) l2tp_xmit_skb() can be called from process context, not just softirq
context, so we must always make sure to BH disable around it. From
Eric Dumazet.
20) On qdisc reset, we forget to purge the RB tree of SKBs in netem
packet scheduler. From Stephen Hemminger.
21) Fix info leak in farsync WAN driver ioctl() handler, from Dan
Carpenter and Salva Peiró.
22) Fix PHY reset and other issues in dm9000 driver, from Nikita
Kiryanov and Michael Abbott.
23) When hardware can do SCTP crc32 checksums, we accidently don't
disable the csum offload when IPSEC transformations have been
applied. From Fan Du and Vlad Yasevich.
24) Tail loss probing in TCP leaves the socket in the wrong congestion
avoidance state. From Yuchung Cheng.
25) In CPSW driver, enable NAPI before interrupts are turned on, from
Markus Pargmann.
26) Integer underflow and dual-assignment in YAM hamradio driver, from
Dan Carpenter.
27) If we are going to mangle a packet in tcp_set_skb_tso_segs() we must
unclone it. This fixes various hard to track down crashes in
drivers where the SKBs ->gso_segs was changing right from underneath
the driver during TX queueing. From Eric Dumazet.
28) Fix the handling of VLAN IDs, and in particular the special IDs 0
and 4095, in the bridging layer. From Toshiaki Makita.
29) Another info leak, this time in wanxl WAN driver, from Salva Peiró.
30) Fix race in socket credential passing, from Daniel Borkmann.
31) WHen NETLABEL is disabled, we don't validate CIPSO packets properly,
from Seif Mazareeb.
32) Fix identification of fragmented frames in ipv4/ipv6 UDP
Fragmentation Offload output paths, from Jiri Pirko.
33) Virtual Function fixes in bnx2x driver from Yuval Mintz and Ariel
Elior.
34) When we removed the explicit neighbour pointer from ipv6 routes a
slight regression was introduced for users such as IPVS, xt_TEE, and
raw sockets. We mix up the users requested destination address with
the routes assigned nexthop/gateway. From Julian Anastasov and
Simon Horman.
35) Fix stack overruns in rt6_probe(), the issue is that can end up
doing two full packet xmit paths at the same time when emitting
neighbour discovery messages. From Hannes Frederic Sowa.
36) davinci_emac driver doesn't handle IFF_ALLMULTI correctly, from
Mariusz Ceier.
37) Make sure to set TCP sk_pacing_rate after the first legitimate RTT
sample, from Neal Cardwell.
38) Wrong netlink attribute passed to xfrm_replay_verify_len(), from
Steffen Klassert.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (152 commits)
ax88179_178a: Add VID:DID for Samsung USB Ethernet Adapter
ax88179_178a: Correct the RX error definition in RX header
Revert "bridge: only expire the mdb entry when query is received"
tcp: initialize passive-side sk_pacing_rate after 3WHS
davinci_emac.c: Fix IFF_ALLMULTI setup
mac802154: correct a typo in ieee802154_alloc_device() prototype
ipv6: probe routes asynchronous in rt6_probe
netfilter: nf_conntrack: fix rt6i_gateway checks for H.323 helper
ipv6: fill rt6i_gateway with nexthop address
ipv6: always prefer rt6i_gateway if present
bnx2x: Set NETIF_F_HIGHDMA unconditionally
bnx2x: Don't pretend during register dump
bnx2x: Lock DMAE when used by statistic flow
bnx2x: Prevent null pointer dereference on error flow
bnx2x: Fix config when SR-IOV and iSCSI are enabled
bnx2x: Fix Coalescing configuration
bnx2x: Unlock VF-PF channel on MAC/VLAN config error
bnx2x: Prevent an illegal pointer dereference during panic
bnx2x: Fix Maximum CoS estimation for VFs
drivers: net: cpsw: fix kernel warn during iperf test with interrupt pacing
...
John Fastabend [Mon, 21 Oct 2013 21:28:02 +0000 (14:28 -0700)]
macvlan: resolve ENOENT errors on creation
After the commit below attempting to create macvlan devices was
resulting in ENOENT errors,
# ip link add link p3p2 type macvlan
RTNETLINK answers: Invalid argument
This happens because netdev_upper_dev_link() is called before
register_netdevice() in the macvlan code. Through a call chain
this results in a call to __netdev_adjacent_dev_insert() and
finally a sysfs_create_link(). This requires the kobject of
the macvlan to be registered which is done in register_netdevice().
If there is no kobject which is the case here the ENOENT error
is seen on the command line.
To resolve this move the netdev_upper_dev_link() call below
the register_netdevice() call. This aligns with vlan driver
flow.
CC: Veaceslav Falico <vfalico@redhat.com> CC: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Veaceslav Falico <vfalico@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Veaceslav Falico [Mon, 21 Oct 2013 09:48:30 +0000 (11:48 +0200)]
bonding: move bond-specific init after enslave happens
As Jiri noted, currently we first do all bonding-specific initialization
(specifically - bond_select_active_slave(bond)) before we actually attach
the slave (so that it becomes visible through bond_for_each_slave() and
friends). This might result in bond_select_active_slave() not seeing the
first/new slave and, thus, not actually selecting an active slave.
Fix this by moving all the bond-related init part after we've actually
completely initialized and linked (via bond_master_upper_dev_link()) the
new slave.
Also, remove the bond_(de/a)ttach_slave(), it's useless to have functions
to ++/-- one int.
After this we have all the initialization of the new slave *before*
linking, and all the stuff that needs to be done on bonding *after* it. It
has also a bonus effect - we can remove the locking on the new slave init
completely, and only use it for bond_select_active_slave().
Reported-by: Jiri Pirko <jiri@resnulli.us> CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Acked-by: Ding Tianhong@huawei.com Reviewed-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 22 Oct 2013 19:52:06 +0000 (15:52 -0400)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates
This series contains updates to i40e only.
Jesse provides 6 patches against i40e. First is a patch to reduce
CPU utilization by reducing read-flush to read in the hot path. Next
couple of patches resolve coverity issues reported by Hannes Frederic
Sowa <hannes@stressinduktion.org>. Then Jesse refactored i40e to cleanup
functions which used cpu_to_xxx(foo) which caused a lot of line wrapping.
Mitch provides 2 i40e patches. First fixes a panic when tx_rings[0]
are not allocated, his second patch corrects a math error when
assigning MSI-X vectors to VFs. The vectors-per-vf value reported
by the hardware already conveniently reports one less than the actual
value.
Shannon provides 5 patches against i40e. His first patch corrects a
number of little bugs in the error handling of irq setup, most of
which ended up panicing the kernel. Next he fixes the overactive
IRQ issue seen in testing and allows the use of the legacy interrupt.
Shannon then provides a cleanup of the arguments declared at the
beginning of each function. Then he provides a patch to make sure
that there are really rings and queues before trying to dump
information in them. Lastly he simplifies the code by using an
already existing variable.
Catherine provides an i40e patch to bump the version.
v2:
- Remove unneeded parenthesis in patch 3 based on feedback from
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
- Fix patch description for patch 11 based on feedback from
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Lüssing [Sat, 19 Oct 2013 22:58:57 +0000 (00:58 +0200)]
Revert "bridge: only expire the mdb entry when query is received"
While this commit was a good attempt to fix issues occuring when no
multicast querier is present, this commit still has two more issues:
1) There are cases where mdb entries do not expire even if there is a
querier present. The bridge will unnecessarily continue flooding
multicast packets on the according ports.
2) Never removing an mdb entry could be exploited for a Denial of
Service by an attacker on the local link, slowly, but steadily eating up
all memory.
Actually, this commit became obsolete with
"bridge: disable snooping if there is no querier" (b00589af3b)
which included fixes for a few more cases.
Therefore reverting the following commits (the commit stated in the
commit message plus three of its follow up fixes):
CC: Cong Wang <amwang@redhat.com> Signed-off-by: Linus Lüssing <linus.luessing@web.de> Reviewed-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
ZHAO Gang [Tue, 22 Oct 2013 08:23:38 +0000 (16:23 +0800)]
net: remove function sk_reset_txq()
What sk_reset_txq() does is just calls function sk_tx_queue_reset(),
and sk_reset_txq() is used only in sock.h, by dst_negative_advice().
Let dst_negative_advice() calls sk_tx_queue_reset() directly so we
can remove unneeded sk_reset_txq().
Signed-off-by: ZHAO Gang <gamerh2o@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Shannon Nelson [Sat, 28 Sep 2013 07:13:28 +0000 (07:13 +0000)]
i40e: fixup legacy interrupt handling
There were a number of little bugs in the error handling of irq setup, most of
which ended up panicing the kernel, and are addressed by this patch, along with
a couple formatting issues.
Legacy interrupts (including MSI) are used only in the case of failure to
allocate MSI-X interrupts.
Mitch Williams [Sat, 28 Sep 2013 07:13:18 +0000 (07:13 +0000)]
i40e: assign correct vector to VF
Correct math error when assigning MSI-X vectors to VFs. The vectors-per-vf
value reported by the hardware already conveniently reports one less than the
actual value.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Sibai Li <sibai.li@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
projects / ~andy / linux / log