Commit Graph

480366 Commits

Author SHA1 Message Date
Viet Nga Dao
b02241755d net: phy: Adding SGMII support for Marvell 88ee1145 driver
Additional code to m88e1145_config_init function to allow the driver to
support SGMII mode.

Signed-off-by: Viet Nga Dao <vndao@altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 14:49:32 -04:00
Thomas Graf
62b9c8d037 ovs: Turn vports with dependencies into separate modules
The internal and netdev vport remain part of openvswitch.ko. Encap
vports including vxlan, gre, and geneve can be built as separate
modules and are loaded on demand. Modules can be unloaded after use.
Datapath ports keep a reference to the vport module during their
lifetime.

Allows to remove the error prone maintenance of the global list
vport_ops_list.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 14:43:18 -04:00
David S. Miller
cf7b200386 Merge branch 'unnecessary_resource_check'
Varka Bhadram says:

====================
cleanup on resource check

This series removes the duplication of sanity check for
platform_get_resource() return resource. It will be checked
with devm_ioremap_resource()

changes since v2:
	- Merge #1 and #2 patches into single patch
	- remove the comment

changes since v1:
	- remove NULL dereference on resource_size()
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 19:16:14 -04:00
Varka Bhadram
aaa14fe396 ethernet: samsung: sxgbe: remove unnecessary check
devm_ioremap_resource checks platform_get_resource() return value.
We can remove the duplicate check here.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 19:16:02 -04:00
Varka Bhadram
c960804f53 ethernet: renesas: remove unnecessary check
devm_ioremap_resource checks platform_get_resource() return value.
We can remove the duplicate check here.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 19:16:01 -04:00
Varka Bhadram
7e5ae24aa0 ethernet: marvell: remove unnecessary check
devm_ioremap_resource checks platform_get_resource() return value.
We can remove the duplicate check here.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 19:16:01 -04:00
Varka Bhadram
534249d6e0 ethernet: apm: xgene: remove unnecessary check
devm_ioremap_resource checks platform_get_resource() return value.
We can remove the duplicate check here.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 19:16:01 -04:00
Varka Bhadram
5e9b4dce85 ethernet: wiznet: remove unnecessary check
devm_ioremap_resource checks platform_get_resource() return value.
We can remove the duplicate check here.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 19:16:01 -04:00
Kyeyoon Park
958501163d bridge: Add support for IEEE 802.11 Proxy ARP
This feature is defined in IEEE Std 802.11-2012, 10.23.13. It allows
the AP devices to keep track of the hardware-address-to-IP-address
mapping of the mobile devices within the WLAN network.

The AP will learn this mapping via observing DHCP, ARP, and NS/NA
frames. When a request for such information is made (i.e. ARP request,
Neighbor Solicitation), the AP will respond on behalf of the
associated mobile device. In the process of doing so, the AP will drop
the multicast request frame that was intended to go out to the wireless
medium.

It was recommended at the LKS workshop to do this implementation in
the bridge layer. vxlan.c is already doing something very similar.
The DHCP snooping code will be added to the userspace application
(hostapd) per the recommendation.

This RFC commit is only for IPv4. A similar approach in the bridge
layer will be taken for IPv6 as well.

Signed-off-by: Kyeyoon Park <kyeyoonp@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 19:02:04 -04:00
Fabian Frederick
b8901ac319 ipx: remove __inline__ in c file on static
Let compiler decide what to do with static void __ipxitf_put()

Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 16:25:31 -04:00
Fabian Frederick
e0f36310f7 ipx: remove unnecessary casting on ntohl
use %08X instead of %08lX and remove casting.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 16:03:53 -04:00
Fabian Frederick
5e96d788d9 ipx: move extern sysctl_ipx_pprop_broadcasting to header file
include ipx.h from sysctl_net_ipx.c

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 16:03:53 -04:00
Fabian Frederick
ce256981e5 ipv6: include linux/uaccess.h instead of asm/uaccess.h
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 16:03:52 -04:00
Fabian Frederick
9451a304ce ipv6: replace min/casting by min_t
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 16:03:52 -04:00
Fabian Frederick
6b436d3381 ipv4: remove set but unused variable sha
unsigned char *sha (source) was already in original git version
 but was never used.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 16:03:52 -04:00
David S. Miller
49cc91f919 Merge branch 's390-next'
Frank Blaschka says:

====================
s390: network patches for net-next

looks like there was a problem with my previous posting. Hope this time
it will work. Sorry for any inconvenience. The patches are mostly
cleanups and small enhancements for net-next
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26 22:21:45 -04:00
Thomas Richter
652d77ba7b ctcm: replace sscanf by kstrto function
Since a single integer value is read from the supplied buffer
use the kstrto functions instead of sscanf.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26 22:21:40 -04:00
Thomas Richter
786f00659a lcs: replace sscanf by kstrto function
Since a single integer value is read from the supplied buffer
use the kstrto functions instead of sscanf.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26 22:21:39 -04:00
Thomas Richter
3d14f661e6 qeth: s390 ethernet device driver dependency
Compile the s390 10GB ethernet device driver only when
ETHERNET has been defined in the kernel configuration file.
Right now the qeth device driver is always built regardless
of which network connectivity is active.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26 22:21:39 -04:00
Thomas Richter
56530d684e qeth: make local functions static in qeth_l3 module
This patch makes 4 local functions static and removes
the prototypes from the header file.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26 22:21:39 -04:00
Thomas Richter
8a59314848 qeth: fix some trace formating issues
This patch fixes trace formatting issues using the
QETH_CARD_TEXT_ macro. The total size of each trace entry
is 8 bytes. Some of the sprintf formats exceed these 8
bytes (for example using abcd:%d and the converted value
needs more than 3 bytes). The solution is to shorten the
text prepending the value or use a different format (%x).

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26 22:21:39 -04:00
Thomas Richter
bca516502e qeth: qeth_core_main make local functions static
This patch makes some global functions static and removes
the prototypes from the header file.
Also function qeth_query_card_info is not exported anymore,
there is no external user for it, this function should never
have been exported in the first place.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26 22:21:39 -04:00
David Vrabel
1f3c2eba1e xen-netfront: always keep the Rx ring full of requests
A full Rx ring only requires 1 MiB of memory.  This is not enough
memory that it is useful to dynamically scale the number of Rx
requests in the ring based on traffic rates, because:

a) Even the full 1 MiB is a tiny fraction of a typically modern Linux
   VM (for example, the AWS micro instance still has 1 GiB of memory).

b) Netfront would have used up to 1 MiB already even with moderate
   data rates (there was no adjustment of target based on memory
   pressure).

c) Small VMs are going to typically have one VCPU and hence only one
   queue.

Keeping the ring full of Rx requests handles bursty traffic better
than trying to converge on an optimal number of requests to keep
filled.

On a 4 core host, an iperf -P 64 -t 60 run from dom0 to a 4 VCPU guest
improved from 5.1 Gbit/s to 5.6 Gbit/s.  Gains with more bursty
traffic are expected to be higher.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-26 22:21:32 -04:00
David S. Miller
9286ae01ac Merge branch 'sunvnet-napi'
Sowmini Varadhan says:

====================
sunvnet: NAPIfy sunvnet

This patchset converts the sunvnet driver to use the NAPI framework.
Changes since v4 to Patch1:
  vnet_event accumulates LDC_EVENT_* bits into rx_event.
  vnet_event_napi() unrolls send_events() logic to process all rx_event bits.
Changes since v5:
  Patch 1: use net_device.h definition for NAPI_POLL_WEIGHT.
  Drop sparclinux changes (patch3) per David Miller feedback

Patch 1 in the series addresses the packet-receive path- all
the vnet_event() processing is moved into NAPI context.
This patch is dependant on the sparc-next commit:
  "sparc64: Add vio_set_intr() to enable/disable Rx interrupts"
  (sparc commit id ca605b7dd7)

Patch 2 uses RCU to fix race conditions between vnet_port_remove and
paths that access/modify port-related state, such as vnet_start_xmit.

Patch 3 leverages from the NAPIfied Rx path,
dropping superfluous usage of the irqsave/irqrestores on the vio.lock
where possible.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-25 16:20:20 -04:00
Sowmini Varadhan
13b13dd97c sunvnet: Remove irqsave/irqrestore on vio.lock
After the  NAPIfication of sunvnet, we no longer need to
synchronize by doing irqsave/restore on vio.lock in the
I/O fastpath.

NAPI ->poll() is non-reentrant, so all RX processing occurs
strictly in a serialized environment. TX reclaim is done in NAPI
context, so the netif_tx_lock can be used to serialize
critical sections between Tx and Rx paths.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-25 16:20:16 -04:00
Sowmini Varadhan
2a968dd8f7 sunvnet: Use RCU to synchronize port usage with vnet_port_remove()
A vnet_port_remove could be triggered as a result of an ldm-unbind
operation by the peer, module unload, or other changes to the
inter-vnet-link configuration.  When this is concurrent with
vnet_start_xmit(), there are several race sequences possible,
such as

thread 1                                    thread 2
vnet_start_xmit
-> tx_port_find
   spin_lock_irqsave(&vp->lock..)
   ret = __tx_port_find(..)
   spin_lock_irqrestore(&vp->lock..)
                                           vio_remove -> ..
                                               ->vnet_port_remove
                                           spin_lock_irqsave(&vp->lock..)
                                           cleanup
                                           spin_lock_irqrestore(&vp->lock..)
                                           kfree(port)
/* attempt to use ret will bomb */

This patch adds RCU locking for port access so that vnet_port_remove
will correctly clean up port-related state.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-25 16:20:15 -04:00
Sowmini Varadhan
69088822ab sunvnet: NAPIfy sunvnet
Move Rx packet procssing to the NAPI poll callback.
Disable VIO interrupt and unconditioanlly go into NAPI
context from vnet_event.

Note that we want to minimize the number of LDC
STOP/START messages sent. Specifically, do not send a STOP
message if vnet_walk_rx does not read all the available descriptors
because of the NAPI budget limitation. Instead, note the end index
as part of port state, and resume from this index when the
next poll callback is triggered.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Raghuram Kothakota <raghuram.kothakota@oracle.com>
Acked-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-25 16:20:15 -04:00
David S. Miller
132fb57984 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2014-10-23

This series contains updates to i40e and i40evf.

Jesse modifies the i40e driver to only notify the firmware on link up/down
and qualified module events.  Also simplified the job of managing link
state by using the admin queue receive event for link events as a signal
to tell the driver to update link state.

Jeff (me) cleans up the inconsistent use of tabs for indentation in the admin
queue command header file.

Neerav converts the use of udelay() to usleep_range().

Anjali fixes a bug where receive would stop after some stress by adding
a sleep and restart as well as moving the setting of flow control because
it should be done at a PF level and not a VSI level.

Mitch adds code to handle link events when updating the PF switch, which
allows link information to be properly provided to VFS in all cases.

Catherine adds driver support for 10GBaseT and bumps driver version.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 16:41:02 -04:00
Fabian Frederick
74bca138e1 net: llc: include linux/errno.h instead of asm/errno.h
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 15:51:42 -04:00
Fabian Frederick
75da1469f9 lapb: move EXPORT_SYMBOL after functions.
See Documentation/CodingStyle Chapter 6

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 15:51:42 -04:00
David S. Miller
5f3619f275 Merge branch 'berlin_ethernet'
Sebastian Hesselbarth says:

====================
Marvell PXA168 libphy handling and Berlin Ethernet

This patch series deals with a removing a IP feature that can be found
on all currently supported Marvell Ethernet IP (pxa168_eth, mv643xx_eth,
mvneta). The MAC IP allows to automatically perform PHY auto-negotiation
without software interaction.

However, this feature (a) fundamentally clashes with the way libphy works
and (b) is unable to deal with quirky PHYs that require special treatment.
In this series, pxa168_eth driver is rewritten to completely disable that
feature and properly deal with libphy provided PHYs.

As usual, a branch on top of v3.18-rc1 can be found at

git://git.infradead.org/users/hesselba/linux-berlin.git devel/bg2-bg2cd-eth-v2

Patches 1-5 should go through David's net tree, I'll pick up the DT patches
6-9.

There have been some changes,
compared to the RFT
- added phy-connection-type property to BG2Q PHY DT node
- bail out from pxa168_eth_adjust_link when there is no change in
  PHY parameters. Also, add a call to phy_print_status.
compared to v1
- move phy-connection-type to ethernet node instead of PHY node

Patch 1 adds support for Marvell 88E3016 FastEthernet PHY that is also
integrated in Marvell Berlin BG2/BG2CD SoCs.

Patch 2 allows to pass phy_interface_t on pxa168_eth platform_data that
is only used by mach-mmp/gplug. From the board setup, I guessed gplug's
PHY is connected via RMII. The patch still isn't even compile tested.

Patches 3-5 prepare proper libphy handling and finally remove all in-driver
PHY mangling related to the feature explained above.

Patches 6-9 add corresponding ethernet DT nodes to BG2, BG2CD, add a
phy-connection-type property to BG2Q and enable ethernet on BG2-based Sony
NSZ-GS7. I have tested all this on GS7 successfully with ip=dhcp on 100M FD.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 15:49:25 -04:00
Sebastian Hesselbarth
9ff32fe1b9 net: pxa168_eth: Remove in-driver PHY mangling
With properly using libphy PHYs now, remove the in-driver PHY
mangling.

Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 15:49:21 -04:00
Sebastian Hesselbarth
1a14913289 net: pxa168_eth: Remove HW auto-negotiaion
Marvell Ethernet IP supports PHY negotiation driven by HW. This
fundamentally clashes with libphy (software) driven negotiation and
also cannot cope with quirky PHYs. Therefore, always disable any HW
negotiation features and properly use libphy's phy_device.

Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 15:49:21 -04:00
Sebastian Hesselbarth
9d8ea73d3e net: pxa168_eth: Prepare proper libphy handling
Current libphy handling in pxa168_eth lacks proper phy_connect. Prepare
to fix this by first moving phy properties from platform_data to private
driver data.

Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 15:49:20 -04:00
Sebastian Hesselbarth
e7de17abed net: pxa168_eth: Provide phy_interface mode on platform_data
The PXA168 Ethernet IP support MII and RMII connection to its PHY.
Currently, pxa168 platform_data does not provide a way to pass that
and there is one user of pxa168 platform_data (mach-mmp/gplug).
Given the pinctrl settings of gplug it uses RMII, so add and pass
a corresponding phy_interface_t.

Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 15:49:20 -04:00
Sebastian Hesselbarth
6b358aedce phy: marvell: Add support for 88E3016 FastEthernet PHY
Marvell 88E3016 is a FastEthernet PHY that also can be found in Marvell
Berlin SoCs as integrated PHY.

Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 15:49:20 -04:00
Geert Uytterhoeven
d4c3363e84 natsemi/macsonic: Remove superfluous interrupt disable/restore
As of commit e4dc601bf9 ("m68k: Disable/restore interrupts in
hwreg_present()/hwreg_write()"), this is no longer needed.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:43:28 -04:00
Geert Uytterhoeven
7f30b7420b cirrus/mac89x0: Remove superfluous interrupt disable/restore
As of commit e4dc601bf9 ("m68k: Disable/restore interrupts in
hwreg_present()/hwreg_write()"), this is no longer needed.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:43:28 -04:00
Rasmus Villemoes
00fd5d94c2 net: typhoon: Remove redundant casts
Both image_data and typhoon_fw->data are const u8*, so the cast to u8*
is unnecessary and confusing.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: David Dillow <dave@thedillows.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:41:31 -04:00
Sébastien Barré
16704b129b Removed unused function sctp_addr_is_valid()
sctp_addr_is_valid() only appeared in its definition.

Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Sébastien Barré <sebastien.barre@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:37:21 -04:00
David S. Miller
fad71e4a11 Merge branch 'ipv6_route'
Martin KaFai Lau says:

====================
ipv6: Reduce the number of fib6_lookup() calls from ip6_pol_route()

This patch set is trying to reduce the number of fib6_lookup()
calls from ip6_pol_route().

I have adapted davem's udpflooda and kbench_mod test
(https://git.kernel.org/pub/scm/linux/kernel/git/davem/net_test_tools.git) to
support IPv6 and here is the result:

Before:
[root]# for i in $(seq 1 3); do time ./udpflood -l 20000000 -c 250 2401:face:face:face::2; done

real    0m34.190s
user    0m3.047s
sys     0m31.108s

real    0m34.635s
user    0m3.125s
sys     0m31.475s

real    0m34.517s
user    0m3.034s
sys     0m31.449s

[root]# insmod ip6_route_kbench.ko oif=2 src=2401:face:face:face::1 dst=2401:face:face:face::2
[  660.160976] ip6_route_kbench: ip6_route_output tdiff: 933
[  660.207261] ip6_route_kbench: ip6_route_output tdiff: 988
[  660.253492] ip6_route_kbench: ip6_route_output tdiff: 896
[  660.298862] ip6_route_kbench: ip6_route_output tdiff: 898

After:
[root]# for i in $(seq 1 3); do time ./udpflood -l 20000000 -c 250 2401:face:face:face::2; done

real    0m32.695s
user    0m2.925s
sys     0m29.737s

real    0m32.636s
user    0m3.007s
sys     0m29.596s

real    0m32.797s
user    0m2.866s
sys     0m29.898s

[root]# insmod ip6_route_kbench.ko oif=2 src=2401:face:face:face::1 dst=2401:face:face:face::2
[  881.220793] ip6_route_kbench: ip6_route_output tdiff: 684
[  881.253477] ip6_route_kbench: ip6_route_output tdiff: 640
[  881.286867] ip6_route_kbench: ip6_route_output tdiff: 630
[  881.320749] ip6_route_kbench: ip6_route_output tdiff: 653

/****************************** udpflood.c ******************************/
/* It is an adaptation of the Eric Dumazet's and David Miller's
 * udpflood tool, by adding IPv6 support.
 */

typedef uint32_t u32;

static int debug =3D 0;

/* Allow -fstrict-aliasing */
typedef union sa_u {
	struct sockaddr_storage a46;
	struct sockaddr_in a4;
	struct sockaddr_in6 a6;
} sa_u;

static int usage(void)
{
	printf("usage: udpflood [ -l count ] [ -m message_size ] [ -c num_ip_addrs=
 ] IP_ADDRESS\n");
	return -1;
}

static u32 get_last32h(const sa_u *sa)
{
	if (sa->a46.ss_family =3D=3D PF_INET)
		return ntohl(sa->a4.sin_addr.s_addr);
	else
		return ntohl(sa->a6.sin6_addr.s6_addr32[3]);
}

static void set_last32h(sa_u *sa, u32 last32h)
{
	if (sa->a46.ss_family =3D=3D PF_INET)
		sa->a4.sin_addr.s_addr =3D htonl(last32h);
	else
		sa->a6.sin6_addr.s6_addr32[3] =3D htonl(last32h);
}

static void print_saddr(const sa_u *sa, const char *msg)
{
	char buf[64];

	if (!debug)
		return;

	switch (sa->a46.ss_family) {
	case PF_INET:
		inet_ntop(PF_INET, &(sa->a4.sin_addr.s_addr), buf,
			  sizeof(buf));
		break;
	case PF_INET6:
		inet_ntop(PF_INET6, &(sa->a6.sin6_addr), buf, sizeof(buf));
		break;
	}

	printf("%s: %s\n", msg, buf);
}

static int send_packets(const sa_u *sa, size_t num_addrs, int count, int ms=
g_sz)
{
	char *msg =3D malloc(msg_sz);
	sa_u saddr;
	u32 start_addr32h, end_addr32h, cur_addr32h;
	int fd, i, err;

	if (!msg)
		return -ENOMEM;

	memset(msg, 0, msg_sz);

	memcpy(&saddr, sa, sizeof(saddr));
	cur_addr32h =3D start_addr32h =3D get_last32h(&saddr);
	end_addr32h =3D start_addr32h + num_addrs;

	fd =3D socket(saddr.a46.ss_family, SOCK_DGRAM, 0);
	if (fd < 0) {
		perror("socket");
		err =3D fd;
		goto out_nofd;
	}

	/* connect to avoid the kernel spending time in figuring
	 * out the source address (i.e pin the src address)
	 */
	err =3D connect(fd, (struct sockaddr *) &saddr, sizeof(saddr));
	if (err < 0) {
		perror("connect");
		goto out;
	}

	print_saddr(&saddr, "start_addr");
	for (i =3D 0; i < count; i++) {
		print_saddr(&saddr, "sendto");
		err =3D sendto(fd, msg, msg_sz, 0, (struct sockaddr *)&saddr,
			     sizeof(saddr));
		if (err < 0) {
			perror("sendto");
			goto out;
		}

		if (++cur_addr32h >=3D end_addr32h)
			cur_addr32h =3D start_addr32h;
		set_last32h(&saddr, cur_addr32h);
	}

	err =3D 0;
out:
	close(fd);
out_nofd:
	free(msg);
	return err;
}

int main(int argc, char **argv, char **envp)
{
	int port, msg_sz, count, num_addrs, ret;

	sa_u start_addr;

	port =3D 6000;
	msg_sz =3D 32;
	count =3D 10000000;
	num_addrs =3D 1;

	while ((ret =3D getopt(argc, argv, "dl:s:p:c:")) >=3D 0) {
		switch (ret) {
		case 'l':
			sscanf(optarg, "%d", &count);
			break;
		case 's':
			sscanf(optarg, "%d", &msg_sz);
			break;
		case 'p':
			sscanf(optarg, "%d", &port);
			break;
		case 'c':
			sscanf(optarg, "%d", &num_addrs);
			break;
		case 'd':
			debug =3D 1;
			break;
		case '?':
			return usage();
		}
	}

	if (num_addrs < 1)
		return usage();

	if (!argv[optind])
		return usage();

	start_addr.a4.sin_port =3D htons(port);
	if (inet_pton(PF_INET, argv[optind], &start_addr.a4.sin_addr))
		start_addr.a46.ss_family =3D PF_INET;
	else if (inet_pton(PF_INET6, argv[optind], &start_addr.a6.sin6_addr.s6_add=
r))
		start_addr.a46.ss_family =3D PF_INET6;
	else
		return usage();

	return send_packets(&start_addr, num_addrs, count, msg_sz);
}

/****************** ip6_route_kbench_mod.c ******************/

/* We can't just use "get_cycles()" as on some platforms, such
 * as sparc64, that gives system cycles rather than cpu clock
 * cycles.
 */

static inline unsigned long long get_tick(void)
{
	unsigned long long t;

	__asm__ __volatile__("rd %%tick, %0" : "=r" (t));
	return t;
}
static inline unsigned long long get_tick(void)
{
	unsigned long long t;

	rdtscll(t);

	return t;
}
static inline unsigned long long get_tick(void)
{
	return get_cycles();
}

static int flow_oif = DEFAULT_OIF;
static int flow_iif = DEFAULT_IIF;
static u32 flow_mark = DEFAULT_MARK;
static struct in6_addr flow_dst_ip_addr;
static struct in6_addr flow_src_ip_addr;
static int flow_tos = DEFAULT_TOS;

static char dst_string[64];
static char src_string[64];

module_param_string(dst, dst_string, sizeof(dst_string), 0);
module_param_string(src, src_string, sizeof(src_string), 0);

static int __init flow_setup(void)
{
	if (dst_string[0] &&
	    !in6_pton(dst_string, -1, &flow_dst_ip_addr.s6_addr[0], -1, NULL)) {
		pr_info("cannot parse \"%s\"\n", dst_string);
		return -1;
	}

	if (src_string[0] &&
	    !in6_pton(src_string, -1, &flow_src_ip_addr.s6_addr[0], -1, NULL)) {
		pr_info("cannot parse \"%s\"\n", dst_string);
		return -1;
	}

	return 0;
}

module_param_named(oif, flow_oif, int, 0);
module_param_named(iif, flow_iif, int, 0);
module_param_named(mark, flow_mark, uint, 0);
module_param_named(tos, flow_tos, int, 0);

static int warmup_count = DEFAULT_WARMUP_COUNT;
module_param_named(count, warmup_count, int, 0);

static void flow_init(struct flowi6 *fl6)
{
	memset(fl6, 0, sizeof(*fl6));
	fl6->flowi6_proto = IPPROTO_ICMPV6;
	fl6->flowi6_oif = flow_oif;
	fl6->flowi6_iif = flow_iif;
	fl6->flowi6_mark = flow_mark;
	fl6->flowi6_tos = flow_tos;
	fl6->daddr = flow_dst_ip_addr;
	fl6->saddr = flow_src_ip_addr;
}

static struct sk_buff * fake_skb_get(void)
{
	struct ipv6hdr *hdr;
	struct sk_buff *skb;

	skb = alloc_skb(4096, GFP_KERNEL);
	if (!skb) {
		pr_info("Cannot alloc SKB for test\n");
		return NULL;
	}
	skb->dev = __dev_get_by_index(&init_net, flow_iif);
	if (skb->dev == NULL) {
		pr_info("Input device (%d) does not exist\n", flow_iif);
		goto err;
	}

	skb_reset_mac_header(skb);
	skb_reset_network_header(skb);
	skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
	hdr = ipv6_hdr(skb);

	hdr->priority = 0;
	hdr->version = 6;
	memset(hdr->flow_lbl, 0, sizeof(hdr->flow_lbl));
	hdr->payload_len = htons(sizeof(struct icmp6hdr));
	hdr->nexthdr = IPPROTO_ICMPV6;
	hdr->saddr = flow_src_ip_addr;
	hdr->daddr = flow_dst_ip_addr;
	skb->protocol = htons(ETH_P_IPV6);
	skb->mark = flow_mark;

	return skb;
err:
	kfree_skb(skb);
	return NULL;
}

static void do_full_output_lookup_bench(void)
{
	unsigned long long t1, t2, tdiff;
	struct rt6_info *rt;
	struct flowi6 fl6;
	int i;

	rt = NULL;

	for (i = 0; i < warmup_count; i++) {
		flow_init(&fl6);

		rt = (struct rt6_info *)ip6_route_output(&init_net, NULL, &fl6);
		if (IS_ERR(rt))
			break;
		ip6_rt_put(rt);
	}
	if (IS_ERR(rt)) {
		pr_info("ip_route_output_key: err=%ld\n", PTR_ERR(rt));
		return;
	}

	flow_init(&fl6);

	t1 = get_tick();
	rt = (struct rt6_info *)ip6_route_output(&init_net, NULL, &fl6);
	t2 = get_tick();
	if (!IS_ERR(rt))
		ip6_rt_put(rt);

	tdiff = t2 - t1;
	pr_info("ip6_route_output tdiff: %llu\n", tdiff);
}

static void do_full_input_lookup_bench(void)
{
	unsigned long long t1, t2, tdiff;
	struct sk_buff *skb;
	struct rt6_info *rt;
	int err, i;

	skb = fake_skb_get();
	if (skb == NULL)
		goto out_free;

	err = 0;
	local_bh_disable();
	for (i = 0; i < warmup_count; i++) {
		ip6_route_input(skb);
		rt = (struct rt6_info *)skb_dst(skb);
		err = (!rt || rt == init_net.ipv6.ip6_null_entry);
		skb_dst_drop(skb);
		if (err)
			break;
	}
	local_bh_enable();

	if (err) {
		pr_info("Input route lookup fails\n");
		goto out_free;
	}

	local_bh_disable();
	t1 = get_tick();
	ip6_route_input(skb);
	t2 = get_tick();
	local_bh_enable();

	rt = (struct rt6_info *)skb_dst(skb);
	err = (!rt || rt == init_net.ipv6.ip6_null_entry);
	skb_dst_drop(skb);
	if (err) {
		pr_info("Input route lookup fails\n");
		goto out_free;
	}

	tdiff = t2 - t1;
	pr_info("ip6_route_input tdiff: %llu\n", tdiff);

out_free:
	kfree_skb(skb);
}

static void do_full_lookup_bench(void)
{
	if (!flow_iif)
		do_full_output_lookup_bench();
	else
		do_full_input_lookup_bench();
}

static void do_bench(void)
{
	do_full_lookup_bench();
	do_full_lookup_bench();
	do_full_lookup_bench();
	do_full_lookup_bench();
}

static int __init kbench_init(void)
{
	if (flow_setup())
		return -EINVAL;

	pr_info("flow [IIF(%d),OIF(%d),MARK(0x%08x),D("IP6_FMT"),"
		"S("IP6_FMT"),TOS(0x%02x)]\n",
		flow_iif, flow_oif, flow_mark,
		IP6_PRT(flow_dst_ip_addr),
		IP6_PRT(flow_src_ip_addr),
		flow_tos);

	if (!cpu_has_tsc) {
		pr_err("X86 TSC is required, but is unavailable.\n");
		return -EINVAL;
	}

	pr_info("sizeof(struct rt6_info)==%zu\n", sizeof(struct rt6_info));

	do_bench();

	return -ENODEV;
}

static void __exit kbench_exit(void)
{
}

module_init(kbench_init);
module_exit(kbench_exit);
MODULE_LICENSE("GPL");
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:14:52 -04:00
Martin KaFai Lau
367efcb932 ipv6: Avoid redoing fib6_lookup() with reachable = 0 by saving fn
This patch save the fn before doing rt6_backtrack.
Hence, without redo-ing the fib6_lookup(), saved_fn can be used
to redo rt6_select() with RT6_LOOKUP_F_REACHABLE off.

Some minor changes I think make sense to review as a single patch:
* Remove the 'out:' goto label.
* Remove the 'reachable' variable. Only use the 'strict' variable instead.

After this patch, "failing ip6_ins_rt()" should be the only case that
requires a redo of fib6_lookup().

Cc: David Miller <davem@davemloft.net>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:14:39 -04:00
Martin KaFai Lau
94c77bb41d ipv6: Avoid redoing fib6_lookup() for RTF_CACHE hit case
When there is a RTF_CACHE hit, no need to redo fib6_lookup()
with reachable=0.

Cc: David Miller <davem@davemloft.net>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:14:39 -04:00
Martin KaFai Lau
a3c00e46ef ipv6: Remove BACKTRACK macro
It is the prep work to reduce the number of calls to fib6_lookup().

The BACKTRACK macro could be hard-to-read and error-prone due to
its side effects (mainly goto).

This patch is to:
1. Replace BACKTRACK macro with a function (fib6_backtrack) with the following
   return values:
   * If it is backtrack-able, returns next fn for retry.
   * If it reaches the root, returns NULL.
2. The caller needs to decide if a backtrack is needed (by testing
   rt == net->ipv6.ip6_null_entry).
3. Rename the goto labels in ip6_pol_route() to make the next few
   patches easier to read.

Cc: David Miller <davem@davemloft.net>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:14:39 -04:00
Kenjiro Nakayama
105970f608 net: Remove trailing whitespace in tcp.h icmp.c syncookies.c
Remove trailing whitespace in tcp.h icmp.c syncookies.c

Signed-off-by: Kenjiro Nakayama <nakayamakenjiro@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-24 00:13:10 -04:00
Catherine Sullivan
e8720db1fb i40e: Bump version
Bump i40e version to 1.0.21.

Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-By: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-10-23 20:38:05 -07:00
Akeem G Abodunrin
bf00b376d3 i40e: Moving variable declaration out of the loops
Move the three variables out of the loop, so it only declares once.

Change-ID: I436913777c7da3c16dc0031b59e3ffa61de74718
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Patrick Lu <patrick.lu@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-10-23 20:38:05 -07:00
Mitch Williams
5960d33f91 i40e: Add 10GBaseT support
Add driver support for 10GBaseT device.

Change-ID: I4be6ed847ac0bddd220b9878a95c523b32038174
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-10-23 20:38:04 -07:00
Mitch Williams
a34a6711f8 i40e: process link events when setting up switch
Add code to handle link events when updating the PF switch. This
allows link information to be properly provided to VFs in all cases.

Change-ID: If314c95f3d39259ef4c40a4a3b823381e28fb24f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-10-23 20:38:04 -07:00
Anjali Singhai Jain
cafa2ee6fb i40e: Fix a bug where Rx would stop after some time
Move the setting of flow control because this should be done at a pf level not
a vsi level. Also add a sleep and restart an to fix a bug where Rx would stop
after some stress.

Change-ID: I9a93d8c2ff27c39339eb00bc4ec1225e43900be0
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-10-23 20:38:03 -07:00