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350135 commits

Author SHA1 Message Date
YOSHIFUJI Hideaki / 吉藤英明 18367681a1 ipv6 flowlabel: Convert np->ipv6_fl_list to RCU.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 22:41:13 -05:00
YOSHIFUJI Hideaki / 吉藤英明 d3aedd5ebd ipv6 flowlabel: Convert hash list to RCU.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 22:41:13 -05:00
YOSHIFUJI Hideaki / 吉藤英明 f256dc59d0 ipv6 flowlabel: Ensure to take lock when modifying np->ip6_sk_fl_list.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 22:41:12 -05:00
Eric Dumazet 3b58908a92 x86: bpf_jit_comp: add pkt_type support
Supporting access to skb->pkt_type is a bit tricky if we want
to have a generic code, allowing pkt_type to be moved in struct sk_buff

pkt_type is a bit field, so compiler cannot really help us to find
its offset. Let's use a helper for this : It will throw a one time
message if pkt_type no longer starts at a byte boundary or is
no longer a 3bit field.

Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 22:38:34 -05:00
Jitendra Kalsaria 45acd3a0a1 qlcnic: Bump up the version to 5.1.33
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 20:34:50 -05:00
Stephen Hemminger fec9dd15d5 qlcnic: make pci_error_handlers const
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 20:34:50 -05:00
Manish chopra 22fd5ab462 qlcnic: Fix RX/TX checksum setting for some adapter types
Signed-off-by: Manish chopra <manish.chopra@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 20:34:50 -05:00
Shahed Shaikh 4d53f40f54 qlcnic: Fix minidump in NPAR mode
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 20:34:50 -05:00
Manish chopra 283c1c6870 qlcnic: driver LRO bug fix
o ipv4 address was not getting programmed properly because of
  improper byte order conversion

Signed-off-by: Manish chopra <manish.chopra@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 20:34:50 -05:00
Manish chopra cdc84dda1e qlcnic: Free irq for mailbox interrupts
Signed-off-by: Manish chopra <manish.chopra@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 20:34:49 -05:00
Manish chopra 1403f43a8f qlcnic: Fix bug in reading HW reset template
Signed-off-by: Manish chopra <manish.chopra@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 20:34:49 -05:00
Shahed Shaikh 069048f18b qlcnic: Fix sparse check endian warnings
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 20:34:49 -05:00
Jiri Pirko 409cc1f8a4 bond: have random dev address by default instead of zeroes
Makes more sense to have randomly generated address by default than to
have all zeroes. It also allows user to for example put the bond into
bridge without need to have any slaves in it.

Also note that this changes only behaviour of bonds with no slaves. Once
the first slave device is enslaved, its address will be used (no change
here).

Also, fix dev_assign_type values on the way.

Reported-by: Pavel Šimerda <psimerda@redhat.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-30 15:34:00 -05:00
Michał Mirosław d2ed273d30 net: disallow drivers with buggy VLAN accel to register_netdevice()
Instead of jumping aroung bugs that are easily fixed just don't let them in:
affected drivers should be either fixed or have NETIF_F_HW_VLAN_FILTER
removed from advertised features.

Quick grep in drivers/net shows two drivers that have NETIF_F_HW_VLAN_FILTER
but not ndo_vlan_rx_add/kill_vid(), but those are false-positives (features
are commented out).

OTOH two drivers have ndo_vlan_rx_add/kill_vid() implemented but don't
advertise NETIF_F_HW_VLAN_FILTER. Those are:

+ethernet/cisco/enic/enic_main.c
+ethernet/qlogic/qlcnic/qlcnic_main.c

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 22:58:40 -05:00
YOSHIFUJI Hideaki / 吉藤英明 29e3b1608c netfilter ipset: Use ipv6_addr_equal() where appropriate.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 22:58:40 -05:00
YOSHIFUJI Hideaki / 吉藤英明 d9e85655b5 netfilter ip6table_mangle: Use ipv6_addr_equal() where appropriate.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 22:58:40 -05:00
YOSHIFUJI Hideaki / 吉藤英明 70e94e66ae xfrm: Convert xfrm_addr_cmp() to boolean xfrm_addr_equal().
All users of xfrm_addr_cmp() use its result as boolean.
Introduce xfrm_addr_equal() (which is equal to !xfrm_addr_cmp())
and convert all users.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 22:58:40 -05:00
YOSHIFUJI Hideaki / 吉藤英明 ff88b30c71 xfrm: Use ipv6_addr_equal() where appropriate.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 22:58:40 -05:00
YOSHIFUJI Hideaki / 吉藤英明 07c2fecc36 ipv6 mcast: Use ipv6_addr_equal() in ip6_mc_source().
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 22:58:40 -05:00
David S. Miller b53c47dd4f Included changes:
- fix recently introduced output behaviour
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Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge

Included changes:
- fix recently introduced output behaviour

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:59:45 -05:00
David S. Miller f1e7b73acc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Bring in the 'net' tree so that we can get some ipv4/ipv6 bug
fixes that some net-next work will build upon.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:32:13 -05:00
Hannes Frederic Sowa 218774dc34 ipv6: add anti-spoofing checks for 6to4 and 6rd
This patch adds anti-spoofing checks in sit.c as specified in RFC3964
section 5.2 for 6to4 and RFC5969 section 12 for 6rd. I left out the
checks which could easily be implemented with netfilter.

Specifically this patch adds following logic (based loosely on the
pseudocode in RFC3964 section 5.2):

if prefix (inner_src_v6) == rd6_prefix (2002::/16 is the default)
        and outer_src_v4 != embedded_ipv4 (inner_src_v6)
                drop
if prefix (inner_dst_v6) == rd6_prefix (or 2002::/16 is the default)
        and outer_dst_v4 != embedded_ipv4 (inner_dst_v6)
                drop
accept

To accomplish the specified security checks proposed by above RFCs,
it is still necessary to employ uRPF filters with netfilter. These new
checks only kick in if the employed addresses are within the 2002::/16 or
another range specified by the 6rd-prefix (which defaults to 2002::/16).

Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:22:03 -05:00
Claudiu Manoil ee873fda3b gianfar: Pack struct gfar_priv_grp into three cachelines
* remove unused members(!): imask, ievent
* move space consuming interrupt name strings (int_name_* members) to
external structures, unessential for the driver's hot path
* keep high priority hot path data within the first 2 cache lines

This reduces struct gfar_priv_grp from 6 to 3 cache lines.
(Also fixed checkpatch warnings for the old code, in the process.)

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:22:02 -05:00
Claudiu Manoil 5fedcc14d4 gianfar: Cleanup gfar_parse_group() code
Factor out redundant code (improve readability, source code size).

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:22:02 -05:00
Claudiu Manoil 0cd3fdea07 gianfar: Optimize struct gfar_priv_tx_q for two cache lines
Resize and regroup structure members to eliminate memory holes and
to pack the structure into 2 cache lines (from 3).
tx_ring_size was resized from 4 to 2 bytes and few members were re-grouped
in order to eliminate byte holes and achieve compactness.
Where possible, few members were grouped according to their usage and access
order (i.e. start_xmit vs. clean_tx_ring members), less important members
were pushed at the end.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:22:02 -05:00
Eric W. Biederman 243bb4c6d7 ipv6: Fix inet6_csk_bind_conflict so it builds with user namespaces enabled
When attempting to build linux-next with user namespaces enabled I ran
into this fun build error.

  CC      net/ipv6/inet6_connection_sock.o
.../net/ipv6/inet6_connection_sock.c: In function ‘inet6_csk_bind_conflict’:
.../net/ipv6/inet6_connection_sock.c:37:12: error: incompatible types when initializing type ‘int’ using
 type ‘kuid_t’
.../net/ipv6/inet6_connection_sock.c:54:30: error: incompatible type for argument 1 of ‘uid_eq’
.../include/linux/uidgid.h:48:20: note: expected ‘kuid_t’ but argument is of type ‘int’
make[3]: *** [net/ipv6/inet6_connection_sock.o] Error 1
make[2]: *** [net/ipv6] Error 2
make[2]: *** Waiting for unfinished jobs....

Using kuid_t instead of int to hold the uid fixes this.

Cc: Tom Herbert <therbert@google.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:20:12 -05:00
Cong Wang 4e58a02750 pktgen: support net namespace
v3: make pktgen_threads list per-namespace
v2: remove a useless check

This patch add net namespace to pktgen, so that
we can use pktgen in different namespaces.

Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:17:46 -05:00
Frank Li dc975382d2 net: fec: add napi support to improve proformance
Add napi support

Before this patch

 iperf -s -i 1
 ------------------------------------------------------------
 Server listening on TCP port 5001
 TCP window size: 85.3 KByte (default)
 ------------------------------------------------------------
 [  4] local 10.192.242.153 port 5001 connected with 10.192.242.138 port 50004
 [ ID] Interval       Transfer     Bandwidth
 [  4]  0.0- 1.0 sec  41.2 MBytes   345 Mbits/sec
 [  4]  1.0- 2.0 sec  43.7 MBytes   367 Mbits/sec
 [  4]  2.0- 3.0 sec  42.8 MBytes   359 Mbits/sec
 [  4]  3.0- 4.0 sec  43.7 MBytes   367 Mbits/sec
 [  4]  4.0- 5.0 sec  42.7 MBytes   359 Mbits/sec
 [  4]  5.0- 6.0 sec  43.8 MBytes   367 Mbits/sec
 [  4]  6.0- 7.0 sec  43.0 MBytes   361 Mbits/sec

After this patch
 [  4]  2.0- 3.0 sec  51.6 MBytes   433 Mbits/sec
 [  4]  3.0- 4.0 sec  51.8 MBytes   435 Mbits/sec
 [  4]  4.0- 5.0 sec  52.2 MBytes   438 Mbits/sec
 [  4]  5.0- 6.0 sec  52.1 MBytes   437 Mbits/sec
 [  4]  6.0- 7.0 sec  52.1 MBytes   437 Mbits/sec
 [  4]  7.0- 8.0 sec  52.3 MBytes   439 Mbits/sec

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 14:16:17 -05:00
Barry Grussling 72aa8e1b29 ethoc: Cleanup driver format
Cleanup the format of ethoc.c to meet network driver style as
per checkpatch.pl.

Signed-off-by: Barry Grussling <barry@grussling.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 14:07:05 -05:00
David Ward 040468a0a7 ip_gre: When TOS is inherited, use configured TOS value for non-IP packets
A GRE tunnel can be configured so that outgoing tunnel packets inherit
the value of the TOS field from the inner IP header. In doing so, when
a non-IP packet is transmitted through the tunnel, the TOS field will
always be set to 0.

Instead, the user should be able to configure a different TOS value as
the fallback to use for non-IP packets. This is helpful when the non-IP
packets are all control packets and should be handled by routers outside
the tunnel as having Internet Control precedence. One example of this is
the NHRP packets that control a DMVPN-compatible mGRE tunnel; they are
encapsulated directly by GRE and do not contain an inner IP header.

Under the existing behavior, the IFLA_GRE_TOS parameter must be set to
'1' for the TOS value to be inherited. Now, only the least significant
bit of this parameter must be set to '1', and when a non-IP packet is
sent through the tunnel, the upper 6 bits of this same parameter will be
copied into the TOS field. (The ECN bits get masked off as before.)

This behavior is backwards-compatible with existing configurations and
iproute2 versions.

Signed-off-by: David Ward <david.ward@ll.mit.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 14:05:28 -05:00
Jiri Pirko 5c766d642b ipv4: introduce address lifetime
There are some usecase when lifetime of ipv4 addresses might be helpful.
For example:
1) initramfs networkmanager uses a DHCP daemon to learn network
configuration parameters
2) initramfs networkmanager addresses, routes and DNS configuration
3) initramfs networkmanager is requested to stop
4) initramfs networkmanager stops all daemons including dhclient
5) there are addresses and routes configured but no daemon running. If
the system doesn't start networkmanager for some reason, addresses and
routes will be used forever, which violates RFC 2131.

This patch is essentially a backport of ivp6 address lifetime mechanism
for ipv4 addresses.

Current "ip" tool supports this without any patch (since it does not
distinguish between ipv4 and ipv6 addresses in this perspective.

Also, this should be back-compatible with all current netlink users.

Reported-by: Pavel Šimerda <psimerda@redhat.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:59:57 -05:00
David S. Miller 5a1dc31708 Merge branch 'ipfrags'
Jesper Dangaard Brouer says:

====================
This patchset is V2, with some trivial code fixes, which were noticed
by DaveM. It is still a partly respin of my fragmentation optimization
patches: http://thread.gmane.org/gmane.linux.network/250914

This is not the complete patchset, from the gmane link above. In this
patchset, I primarily focus on adjusting cacheline for better SMP/NUMA
performance.

Once this patchset have been agreed upon, I will continue and respin
the rest of my patches.

This time around, I have created a frag DoS generator, via the tool
trafgen (http://netsniff-ng.org/).  To create a stable DoS scenario
(no longer relying on frame dropping due to disabled flow-control).

Two 10G interfaces are under-test, and uses Ethernet flow-control.  A
third interface is used for generating the DoS attack (this interface
is also 10G, but it does not need to be, as 500Kpps DoS is enough).

Test types summary (netperf):
 Test-20G64K     == 2x10G with 65K fragments
 Test-20G3F      == 2x10G with 3x fragments (3*1472 bytes)
 Test-20G64K+DoS == Same as 20G64K with frag DoS
 Test-20G3F+DoS  == Same as 20G3F  with frag DoS

Patch list:
 Patch-01 - net: cacheline adjust struct netns_frags for better frag performance
 Patch-02 - net: cacheline adjust struct inet_frags for better frag performance
 Patch-03 - net: cacheline adjust struct inet_frag_queue
 Patch-04 - net: frag helper functions for mem limit tracking
 Patch-05 - net: use lib/percpu_counter API for fragmentation mem accounting
 Patch-06 - net: frag, move LRU list maintenance outside of rwlock

Performance table summary:

 Test-type:  Test-20G64K    Test-20G3F  20G64K+DoS   20G3F+DoS
 ----------  -----------    ----------  ----------   ---------
  net-next:  15114.5 Mbit/s   8954.21     2444.28     3918.01 Mbit/s
  Patch-01:  16075.8 Mbit/s   8976.18     2621.49     4072.79 Mbit/s
  Patch-02:  17806.9 Mbit/s   9280.32     2478.62     4274.59 Mbit/s
  Patch-03:  17317.4 Mbit/s   9308.62     2546.05     4336.59 Mbit/s
  Patch-04:  17635.9 Mbit/s   9256.16     2535.25     4327.63 Mbit/s
  Patch-05:  18027.0 Mbit/s   9918.99     2492.62     3621.68 Mbit/s
  Patch-06:  18486.7 Mbit/s  10723.20     3657.85     4560.64 Mbit/s

 I cannot explain the under-DoS regression that patch-05/percpu_counter
 introduces.  But patch-06/LRU-lock corrects the situation again.

Below is a testlab setup description, with links to the trafgen DoS
packet config used.

Testlab
=======

Server setup
------------
The machine acting as a server:
 - 2x CPU (E5-2630)
 - Thus a NUMA arch/machine
 - 4x 10Gbit/s ports
 - NICs 2x Intel Dual port 82599 based (driver ixgbe)

Setup:
 - Interfaces uses Ethernet flow control
 - Flush all iptables
 - Remove all iptables related module.
 - Kill irqbalance
 - Pin each 10G NIC port to a *single* CPU each

Pinning can easily be done by command hacks::

 for x in /proc/irq/*/eth8*/../smp_affinity_list ; do echo 1 > $x; done
 for x in /proc/irq/*/eth9*/../smp_affinity_list ; do echo 3 > $x; done
 for x in /proc/irq/*/eth31*/../smp_affinity_list; do echo 6 > $x; done
 for x in /proc/irq/*/eth32*/../smp_affinity_list; do echo 8 > $x; done

Notice NUMA setting: The CPU to NIC tying is carefully choosen
according to the NUMA node setup.  Thus, NICs connected to a PCI-e
slot that is connected to a physical CPU socket are tied together.

Choosing only a single CPU per NIC (port) is just to ease provoking
and debugging this performance issue. (In real setups, you can choose
more CPU, just remember the NUMA node in the equation).

Tools
-----

Netperf is used, with option -T to ensure CPU binding.
The netserver processes, are NAPI pinned::

 numactl -m0 -c0 netserver
 numactl -m1 -c 1 netserver -p 1337

I now have a frag DoS generator, created via the tool:
  trafgen (see: http://netsniff-ng.org/)

Trafgen packet config file:
 http://people.netfilter.org/hawk/frag_work/trafgen/frag_packet03_small_frag.txf

Notice, I'm using features of trafgen, recently developed by Daniel
Borkmann, thus you need the latest git tree to use my trafgen packet
config.

 git://github.com/borkmann/netsniff-ng.git

Command line:
 trafgen --dev eth51 --conf frag_packet03_small_frag.txf -V -k 100 --cpus 2

Tests types
-----------

Test(20G64K) UDP-64K 2x 10Gbit/s with no DoS traffic:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 export SIZE=$((65507)); export TIME=$((20)); export LOG=/tmp/netperf.log ;\
 netperf -p 1337 -H 192.168.31.2 -T7,7 -t UDP_STREAM -l $TIME -- -m $SIZE >> ${LOG}.31 &\
 netperf         -H 192.168.81.2 -T2,2 -t UDP_STREAM -l $TIME -- -m $SIZE >> ${LOG}.81 && \
 wait $! && tail -n3 ${LOG}.* && \
 tail -n3 ${LOG}.{31,81} | awk 'BEGIN{sum=0;} /212992        / {sum+=$4; print " +"$4} /==/ {print " file:"$2} END{print "sum:"sum" Mbit/s"}'

Test(20G3F) UDP-3xfrags 2x 10Gbit/s with no DoS traffic:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 export SIZE=$((3*1472)); export TIME=$((20)); export LOG=/tmp/netperf.log ;\
 netperf -p 1337 -H 192.168.31.2 -T7,7 -t UDP_STREAM -l $TIME -- -m $SIZE >> ${LOG}.31 &\
 netperf         -H 192.168.81.2 -T2,2 -t UDP_STREAM -l $TIME -- -m $SIZE >> ${LOG}.81 && \
 wait $! && tail -n3 ${LOG}.* && \
tail -n3 ${LOG}.{31,81} | awk 'BEGIN{sum=0;} /212992        / {sum+=$4; print " +"$4} /==/ {print " file:"$2} END{print "sum:"sum" Mbit/s"}'

Awk script for summming results:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

tail -n3 ${LOG}.{31,81} | awk 'BEGIN{sum=0;} /212992        / {sum+=$4; print " +"$4} /==/ {print " file:"$2} END{print "sum:"sum" Mbit/s"}'
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:37:29 -05:00
Jesper Dangaard Brouer 3ef0eb0db4 net: frag, move LRU list maintenance outside of rwlock
Updating the fragmentation queues LRU (Least-Recently-Used) list,
required taking the hash writer lock.  However, the LRU list isn't
tied to the hash at all, so we can use a separate lock for it.

Original-idea-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:36:24 -05:00
Jesper Dangaard Brouer 6d7b857d54 net: use lib/percpu_counter API for fragmentation mem accounting
Replace the per network namespace shared atomic "mem" accounting
variable, in the fragmentation code, with a lib/percpu_counter.

Getting percpu_counter to scale to the fragmentation code usage
requires some tweaks.

At first view, percpu_counter looks superfast, but it does not
scale on multi-CPU/NUMA machines, because the default batch size
is too small, for frag code usage.  Thus, I have adjusted the
batch size by using __percpu_counter_add() directly, instead of
percpu_counter_sub() and percpu_counter_add().

The batch size is increased to 130.000, based on the largest 64K
fragment memory usage.  This does introduce some imprecise
memory accounting, but its does not need to be strict for this
use-case.

It is also essential, that the percpu_counter, does not
share cacheline with other writers, to make this scale.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:36:24 -05:00
Jesper Dangaard Brouer d433673e5f net: frag helper functions for mem limit tracking
This change is primarily a preparation to ease the extension of memory
limit tracking.

The change does reduce the number atomic operation, during freeing of
a frag queue.  This does introduce a some performance improvement, as
these atomic operations are at the core of the performance problems
seen on NUMA systems.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:36:24 -05:00
Jesper Dangaard Brouer 6e34a8b37a net: cacheline adjust struct inet_frag_queue
Fragmentation code cacheline adjusting of struct inet_frag_queue.

Take advantage of the size of struct timer_list, and move all but
spinlock_t lock, below the timer struct.  On 64-bit 'lru_list',
'list' and 'refcnt', fits exactly into the next cacheline, and a
new cacheline starts at 'fragments'.

The netns_frags *net pointer is moved to the end of the struct,
because its used in a compare, with "next/close-by" elements of
which this struct is embedded into.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:36:23 -05:00
Jesper Dangaard Brouer 5f8e1e8b76 net: cacheline adjust struct inet_frags for better frag performance
The globally shared rwlock, of struct inet_frags, shares
cacheline with the 'rnd' number, which is used by the hash
calculations.  Fix this, as this obviously is a bad idea, as
unnecessary cache-misses will occur when accessing the 'rnd'
number.

Also small note that, moving function ptr (*match) up in struct,
is to avoid it lands on the next cacheline (on 64-bit).

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:36:23 -05:00
Jesper Dangaard Brouer cd39a7890a net: cacheline adjust struct netns_frags for better frag performance
This small cacheline adjustment of struct netns_frags improves
performance significantly for the fragmentation code.

Struct members 'lru_list' and 'mem' are both hot elements, and it
hurts performance, due to cacheline bouncing at every call point,
when they share a cacheline.  Also notice, how mem is placed
together with 'high_thresh' and 'low_thresh', as they are used in
the compare operations together.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:36:23 -05:00
Felipe Balbi 656a05c899 net: ks8851: convert to threaded IRQ
just as it should have been. It also helps
removing the, now unnecessary, workqueue.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 13:32:00 -05:00
YOSHIFUJI Hideaki / 吉藤英明 08433eff2d net neigh: Optimize neighbor entry size calculation.
When allocating memory for neighbour cache entry, if
tbl->entry_size is not set, we always calculate
sizeof(struct neighbour) + tbl->key_len, which is common
in the same table.

With this change, set tbl->entry_size during the table
initialization phase, if it was not set, and use it in
neigh_alloc() and neighbour_priv().

This change also allow us to have both of protocol private
data and device priate data at tha same time.

Note that the only user of prototcol private is DECnet
and the only user of device private is ATM CLIP.
Since those are exclusive, we have not been facing issues
here.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 23:17:51 -05:00
bingtian.ly@taobao.com cdda88912d net: avoid to hang up on sending due to sysctl configuration overflow.
I found if we write a larger than 4GB value to some sysctl
variables, the sending syscall will hang up forever, because these
variables are 32 bits, such large values make them overflow to 0 or
negative.

    This patch try to fix overflow or prevent from zero value setup
of below sysctl variables:

net.core.wmem_default
net.core.rmem_default

net.core.rmem_max
net.core.wmem_max

net.ipv4.udp_rmem_min
net.ipv4.udp_wmem_min

net.ipv4.tcp_wmem
net.ipv4.tcp_rmem

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Li Yu <raise.sail@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 23:15:27 -05:00
Linus Torvalds fc16e884a2 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
 "Whenever you have a chance between two dives, you might want to
  consider pulling my merge branch to pickup a few fixes for 3.8 that
  have been accumulating for the last couple of weeks (I was myself
  travelling then on vacation).

  Nothing major, just a handful of powerpc bug fixes that I consider
  worth getting in before 3.8 goes final."

And I'll have everybody know that I'm not diving for several days yet.
Snif.

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Max next_tb to prevent from replaying timer interrupt
  powerpc: kernel/kgdb.c: Fix memory leakage
  powerpc/book3e: Disable interrupt after preempt_schedule_irq
  powerpc/oprofile: Fix error in oprofile power7_marked_instr_event() function
  powerpc/pasemi: Fix crash on reboot
  powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning for ppc32
2013-01-28 16:23:07 -08:00
Jamie Gloudon f7b5d1b9bd via-rhine: add 64bit statistics.
Switch to use ndo_get_stats64 to get 64bit statistics.

Signed-off-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Tested-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 18:43:02 -05:00
David J. Choi 7ab59dc15e drivers/net/phy/micrel_phy: Add support for new PHYs
Summary of changes:
.Newly added phys
	-KSZ8081/KSZ8091, which has some phy ids.
	-KSZ8061
	-KSZ9031, which is Gigabit phy.
	-KSZ886X, which has a switch function.
	-KSZ8031, which has a same phy ids with KSZ8021.

Signed-off-by: David J. Choi <david.choi@micrel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 18:42:10 -05:00
Giuseppe CAVALLARO ef3d90491a net: phy: realtek: add rtl8211e driver
This patch adds the minimal driver to manage the
Realtek RTL8211E 10/100/1000 Transceivers.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 18:34:53 -05:00
Cong Wang 556e6256c8 netpoll: use the net namespace of current process instead of init_net
This will allow us to setup netconsole in a different namespace
rather than where init_net is.

Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 18:32:55 -05:00
Cong Wang faeed828f9 netpoll: use ipv6_addr_equal() to compare ipv6 addr
ipv6_addr_equal() is faster.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 18:32:55 -05:00
Cong Wang 5fbee843c3 netpoll: add RCU annotation to npinfo field
dev->npinfo is protected by RCU.

This fixes the following sparse warnings:

net/core/netpoll.c:177:48: error: incompatible types in comparison expression (different address spaces)
net/core/netpoll.c:200:35: error: incompatible types in comparison expression (different address spaces)
net/core/netpoll.c:221:35: error: incompatible types in comparison expression (different address spaces)
net/core/netpoll.c:327:18: error: incompatible types in comparison expression (different address spaces)

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 18:32:54 -05:00
David S. Miller ce4a600e47 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:

====================
Included is an NFC pull.  Samuel says:

"It brings the following goodies:

- LLCP socket timestamping (To be used e.g with the recently released nfctool
  application for a more efficient skb timestamping when sniffing).
- A pretty big pn533 rework from Waldemar, preparing the driver to support
  more flavours of pn533 based devices.
- HCI changes from Eric in preparation for the microread driver support.
- Some LLCP memory leak fixes, cleanups and slight improvements.
- pn544 and nfcwilink move to the devm_kzalloc API.
- An initial Secure Element (SE) API.
- An nfc.h license change from the original author, allowing non GPL
  application code to safely include it."

Also included are a pair of mac80211 pulls.  Johannes says:

"We found two bugs in the previous code, so I'm sending you a pull
request again this soon.

This contains two regulatory bug fixes, some of Thomas's hwsim beacon
timer work and a documentation fix from Bob."

"Another pull request for mac80211-next. This time, I have a number of
things, the patches are mostly self-explanatory. There are a few fixes
from Felix and myself, and random cleanups & improvements. The biggest
thing is the partial patchset from Marco preparing for mesh powersave."

Additionally, there are a pair of iwlwifi pulls.  Johannes says:

"For iwlwifi-next, I have a few cleanups/improvements as well as a few
not very important fixes and more preparations for new devices."

"Please pull a few updates for iwlwifi. These are just some cleanups and
a debug improvement."

On top of that, there is a slew of driver updates.  This includes
brcmfmac, mwifiex, ath9k, carl9170, and mwl8k as well as a handful
of others.  The bcma and ssb busses get some attention as well.
Still, I don't see any big headliners here.

Also included is a pull of the wireless tree, in order to resolve
some merge conflicts.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 18:21:38 -05:00
David S. Miller 8a67b05db9 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:

====================
This series contains updates to e1000e, ixgbevf, igb and igbvf.
Majority of the patches are code cleanups of e1000e where code
is removed (Yeah!).  The other two e1000e patches are fixes.  The
first is to fix the maximum frame size for 82579 devices.  The second
fix is to resolve an issue with devices other than 82579 that suffer
from dropped transactions on platforms with deep C-states when
jumbo frames are enabled.

The ixgbevf patch is to ensure that the driver fetches the correct,
refreshed value for link status and speed when the values have changed.

The igb and igbvf patches are a solution to an issue Stefan Assmann
reported, where when the PF is up and igbvf is loaded, the MAC address
is not generated using eth_hw_addr_random().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 18:18:17 -05:00