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507708 commits

Author SHA1 Message Date
Eric Dumazet
42cb80a235 inet: remove sk_listener parameter from syn_ack_timeout()
It is not needed, and req->sk_listener points to the listener anyway.
request_sock argument can be const.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:52:25 -04:00
Eric Dumazet
2b41fab70f inet: cache listen_sock_qlen() and read rskq_defer_accept once
Cache listen_sock_qlen() to limit false sharing, and read
rskq_defer_accept once as it might change under us.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:52:25 -04:00
David S. Miller
c9231f8247 Merge branch 'gigaset_modem_response'
Tilman Schmidt says:

====================
isdn/gigaset: restructure modem response parser

This series of patches restructures the Gigaset ISDN driver's
modem response parser to improve code readability and conform
better to the device's specification and actual behaviour.
Could you please merge these through net-next?
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:47:29 -04:00
Tilman Schmidt
4656e0a360 isdn/gigaset: restructure modem response parser (4)
Restructure the control structure of the modem response parser
to improve readability and error handling.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:47:24 -04:00
Tilman Schmidt
d93187eb10 isdn/gigaset: restructure modem response parser (3)
Separate CID detection from main parser loop.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:47:23 -04:00
Tilman Schmidt
4df1e525af isdn/gigaset: restructure modem response parser (2)
Separate literal string handling from main parser loop.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:47:23 -04:00
Tilman Schmidt
6bf5011435 isdn/gigaset: restructure modem response parser (1)
Factor out queueing of modem response events into helper function
add_cid_event().

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:47:23 -04:00
Roopa Prabhu
558d51fa2f switchdev: fix stp update API to work with layered netdevices
make it same as the netdev_switch_port_bridge_setlink/dellink
api (ie traverse lowerdevs to get to the switch port).

removes "WARN_ON(!ops->ndo_switch_parent_id_get)" because
direct bridge ports can be stacked netdevices (like bonds
and team of switch ports) which may not implement this ndo.

v2 to v3:
	- remove changes to bond and team. Bring back the
	transparently following lowerdevs like i initially
	had for setlink/getlink
	(http://www.spinics.net/lists/netdev/msg313436.html)
	dave and scott feldman also seem to prefer it be that
	way and move to non-transparent way of doing things
	if we see a problem down the lane.

v3 to v4:
	- fix ret initialization

v4 to v5:
	- return err on first failure (scott feldman)

v5 to v6:
	- change variable name (err) and initialize to
	-EOPNOTSUPP (scott feldman).

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:44:56 -04:00
WANG Cong
08b4b8ea79 net: clear skb->priority when forwarding to another netns
skb->priority can be set for two purposes:

1) With respect to IP TOS field, which is computed by a mask.
Ususally used for priority qdisc's (pfifo, prio etc.), on TX
side (we only have ingress qdisc on RX side).

2) Used as a classid or flowid, works in the same way with tc
classid. What's more, this can even override the classid
of tc filters.

For case 1), it has been respected within its netns, I don't
see any point of keeping it for another netns, especially
when packets will be forwarded to Rx path (no matter from TX
path or RX path).

For case 2) we care, our applications run inside a netns,
and we classify the packets by our own filters outside,
If some application sets this priority, it could bypass
our filters, therefore clear it when moving out of a netns,
it makes no sense to bypass tc filters out of its netns.

Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:43:08 -04:00
David S. Miller
a659f91aeb Merge branch 'crypto_async'
Tadeusz Struk says:

====================
Add support for async socket operations

After the iocb parameter has been removed from sendmsg() and recvmsg() ops
the socket layer, and the network stack no longer support async operations.
This patch set adds support for asynchronous operations on sockets back.

Changes in v3:
* As sugested by Al Viro instead of adding new functions aio_sendmsg
  and aio_recvmsg, added a ptr to iocb into the kernel-side msghdr structure.
  This way no change to aio.c is required.

Changes in v2:
* removed redundant total_size param from aio_sendmsg and aio_recvmsg functions
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:41:44 -04:00
Tadeusz Struk
a596999b7d crypto: algif - change algif_skcipher to be asynchronous
The way the algif_skcipher works currently is that on sendmsg/sendpage it
builds an sgl for the input data and then on read/recvmsg it sends the job
for encryption putting the user to sleep till the data is processed.
This way it can only handle one job at a given time.
This patch changes it to be asynchronous by adding AIO support.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:41:37 -04:00
Tadeusz Struk
66db37391d crypto: af_alg - Allow to link sgl
Allow to link af_alg sgls.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:41:37 -04:00
tadeusz.struk@intel.com
0345f93138 net: socket: add support for async operations
Add support for async operations.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 16:41:36 -04:00
Herbert Xu
8f2ddaac30 netlink: Remove netlink_compare_arg.trailer
Instead of computing the offset from trailer, this patch computes
netlink_compare_arg_len from the offset of portid and then adds 4
to it.  This allows trailer to be removed.

Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-21 00:16:39 -04:00
David S. Miller
69a3b16ff6 Merge branch 'netcp-next'
Murali Karicheri says:

====================
NetCP: Add support for version 1.5

NetCP 1.5 is used in newer K2 SoCs from Texas Instruments
such as K2E, K2L etc. This patch series add support for Ethss
driver for this version of NetCP. While at it, fix couple of
bugs in the original driver.

One of the earlier patch "net: netcp: select davinci_mdio driver
by default" is folded onto this series.

Please review and let me know your comments.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 22:03:15 -04:00
WingMan Kwok
9a391c7ba7 net: netcp: ethss: enhancement to support NetCP 1.5 ethss
NetCP 1.5 available on newer K2 SoCs such as K2E and K2L introduced 3
variants of the ethss subsystem, 9 port, 5 port and 2 port. These have
one host port towards the CPU and N external slave ports.

To customize the driver for these new ethss sub systems, multiple
compatibility strings are introduced. Currently some of parameters that
are different on different variants such as number of ALE ports, stats
modules and number of ports are defined through constants. These are now
changed to variables in gbe_priv data that get set based on the
compatibility string. This is required as there are no hardware
identification registers available to distinguish among the variants
of NetCP 1.5 ethss. However there is identification register available
to differentiate between NetCP 1.4 vs NetCP 1.5 and the same is made use
of in the code to differentiate them.

For more reading on the details of this peripheral, please refer to the
User Guide available at http://www.ti.com/lit/pdf/spruhz3

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Mugunthan V N <mugunthanvnm@ti.com>
CC: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
CC: Grygorii Strashko <grygorii.strashko@ti.com>
CC: Christoph Jaeger <cj@linux.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Markus Pargmann <mpa@pengutronix.de>
CC: Kumar Gala <galak@codeaurora.org>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Rob Herring <robh+dt@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 22:03:09 -04:00
Karicheri, Muralidharan
da866ba055 net: netcp: enclose macros in parentheses
Fix following checkpatch error. It seems to have passed checkpatch
last time when original code was introduced.

 ERROR: Macros with complex values should be enclosed in parentheses
 #172: FILE: drivers/net/ethernet/ti/netcp_ethss.c:869:

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Mugunthan V N <mugunthanvnm@ti.com>
CC: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
CC: Grygorii Strashko <grygorii.strashko@ti.com>
CC: Christoph Jaeger <cj@linux.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Markus Pargmann <mpa@pengutronix.de>
CC: Kumar Gala <galak@codeaurora.org>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Rob Herring <robh+dt@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 22:03:09 -04:00
Karicheri, Muralidharan
f49ae14929 net: netcp: select davinci_mdio driver by default
Keystone netcp driver re-uses davinci mdio driver. So enable it
by default for keystone netcp driver.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Mugunthan V N <mugunthanvnm@ti.com>
CC: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
CC: Grygorii Strashko <grygorii.strashko@ti.com>
CC: Christoph Jaeger <cj@linux.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Markus Pargmann <mpa@pengutronix.de>
CC: Kumar Gala <galak@codeaurora.org>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Rob Herring <robh+dt@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 22:03:09 -04:00
Karicheri, Muralidharan
21e0e0ddda net: netcp: use separate reg region for individual ethss modules
Ethss has multiple modules within the sub system
 - switch sub system
 - sgmii
 - mdio
 - switch module

NetCP driver re-uses existing davinci mdio driver. It requires to
have its own register region to map the reg space. So restructure
the code to use separate reg region for the individual modules it
manages. Use range property to define register space of NetCP and
use reg property to define individual reg spaces. So MDIO will have
its own reg space to map. This is a pre-requisite to enable MDIO
driver for NetCP.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Mugunthan V N <mugunthanvnm@ti.com>
CC: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
CC: Grygorii Strashko <grygorii.strashko@ti.com>
CC: Christoph Jaeger <cj@linux.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Markus Pargmann <mpa@pengutronix.de>
CC: Kumar Gala <galak@codeaurora.org>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Rob Herring <robh+dt@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 22:03:09 -04:00
Karicheri, Muralidharan
e170f40992 net: netcp: fix forward port number usage for 10G ethss
10G switch requires forward port number in the taginfo field,
where as it should be in packet_info field for necp 1.4 Ethss. So
fill this value correctly in the knav dma descriptor.

Also rename dma_psflags field in struct netcp_tx_pipe to switch_to_port
as it contain no flag, but the switch port number for forwarding the
packet. Add a flag to hold the new flag,  SWITCH_TO_PORT_IN_TAGINFO which
will be set for 10G. This can also used in the future for other flags for
the tx_pipe.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Mugunthan V N <mugunthanvnm@ti.com>
CC: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
CC: Grygorii Strashko <grygorii.strashko@ti.com>
CC: Christoph Jaeger <cj@linux.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Markus Pargmann <mpa@pengutronix.de>
CC: Kumar Gala <galak@codeaurora.org>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Rob Herring <robh+dt@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 22:03:09 -04:00
YOSHIFUJI Hideaki/吉藤英明
89c69d3ce5 net: neighbour: Document {mcast, ucast}_solicit, mcast_resolicit.
Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 21:47:40 -04:00
YOSHIFUJI Hideaki/吉藤英明
8da86466b8 net: neighbour: Add mcast_resolicit to configure the number of multicast resolicitations in PROBE state.
We send unicast neighbor (ARP or NDP) solicitations ucast_probes
times in PROBE state.  Zhu Yanjun reported that some implementation
does not reply against them and the entry will become FAILED, which
is undesirable.

We had been dealt with such nodes by sending multicast probes mcast_
solicit times after unicast probes in PROBE state.  In 2003, I made
a change not to send them to improve compatibility with IPv6 NDP.

Let's introduce per-protocol per-interface sysctl knob "mcast_
reprobe" to configure the number of multicast (re)solicitation for
reconfirmation in PROBE state.  The default is 0, since we have
been doing so for 10+ years.

Reported-by: Zhu Yanjun <Yanjun.Zhu@windriver.com>
CC: Ulf Samuelsson <ulf.samuelsson@ericsson.com>
Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 21:47:40 -04:00
Rafał Miłecki
fc300dc373 bgmac: allow enabling on ARCH_BCM_5301X
Home routers based on ARM SoCs like BCM4708 also have bcma bus with core
supported by bgmac.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 21:44:56 -04:00
Rafał Miłecki
c25b23b8a3 bgmac: register fixed PHY for ARM BCM470X / BCM5301X chipsets
On ARM SoCs with bgmac Ethernet hardware we don't have any normal PHY.
There is always a switch attached but it's not even controlled over MDIO
like in case of MIPS devices.
We need a fixed PHY to be able to send/receive packets from the switch.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 21:44:56 -04:00
David S. Miller
df814d96ed Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-03-20

This series contains updates to ixgb, e1000e, igb and igbvf.

Eliezer and Todd provide patches to fix a potential issue found during code
inspection.  When bringing down an interface netif_carrier_off() should
be one of the first things we do, since this will prevent the stack from
queueing more packets to this interface.

Yanir provides a fix for e1000e that was found in validating i219,
where the call to e1000e_write_protect_nvm_ich8lan() is no longer
supported in newer hardware.  Access to these registers causes a
system freeze in early steppings and is ignored in later steppings.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 21:40:47 -04:00
Mathieu Olivari
c6f15070e7 net: dsa: make NET_DSA manually selectable from the config
Change bd76a11670 made all DSA drivers
depend on NET_DSA rather than selecting them. However, as the only way
to select this option was to actually select a driver, it made DSA
impossible to enable at all.

This patch adds an explicit entry which the user will have to enable
prior selecting a driver.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 21:37:58 -04:00
Scott Feldman
13bb8e2eb3 switchdev: kernel-doc cleanup on swithdev ops
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 21:36:53 -04:00
Eric Dumazet
d3593b5cef Revert "selinux: add a skb_owned_by() hook"
This reverts commit ca10b9e9a8.

No longer needed after commit eb8895debe
("tcp: tcp_make_synack() should use sock_wmalloc")

When under SYNFLOOD, we build lot of SYNACK and hit false sharing
because of multiple modifications done on sk_listener->sk_wmem_alloc

Since tcp_make_synack() uses sock_wmalloc(), there is no need
to call skb_set_owner_w() again, as this adds two atomic operations.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 21:36:53 -04:00
Todd Fujinaka
784401bfc0 igbvf: use netif_carrier_off earlier when bringing if down
Use netif_carrier_off() first, since that will prevent the stack from
queuing more packets to this IF. This operation is fast, and should
behave much nicer when trying to bring down an interface under load.

Reported-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-03-20 17:45:12 -07:00
Todd Fujinaka
f28ea083a3 igb: use netif_carrier_off earlier when bringing if down
Use netif_carrier_off() first, since that will prevent the stack from
queuing more packets to this IF. This operation is fast, and should
behave much nicer when trying to bring down an interface under load.

Reported-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-03-20 17:45:12 -07:00
Yanir Lubetkin
152c0a976c e1000e: NVM write protect access removed from SPT HW
The call to e1000e_write_protect_nvm_ich8lan() is no longer supported by HW.
Access to these registers causes a system freeze in A step hardware and is
ignored in B step hardware. This function must not be called in hardware
newer than LPT.

Signed-off-by: Yanir Lubetkin <yanirx.lubetkin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-03-20 17:44:25 -07:00
Eliezer Tamir
a60a132e89 e1000e: call netif_carrier_off early on down
When bringing down an interface netif_carrier_off() should be
one the first things we do, since this will prevent the stack
from queuing more packets to this interface.
This operation is very fast, and should make the device behave
much nicer when trying to bring down an interface under load.

Also, this would Do The Right Thing (TM) if this device has some
sort of fail-over teaming and redirect traffic to the other IF.

Move netif_carrier_off as early as possible.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-03-20 17:42:43 -07:00
Eliezer Tamir
d9d888b8b0 ixgb: call netif_carrier_off early on down
When bringing down an interface netif_carrier_off() should be
one the first things we do, since this will prevent the stack
from queuing more packets to this interface.
This operation is very fast, and should make the device behave
much nicer when trying to bring down an interface under load.

Also, this would Do The Right Thing (TM) if this device has some
sort of fail-over teaming and redirect traffic to the other IF.

Move netif_carrier_off as early as possible.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-03-20 17:41:52 -07:00
David S. Miller
f6877fcf22 Merge branch 'ebpf-next'
Daniel Borkmann says:

====================
This set adds native eBPF support also to act_bpf and thus covers tc
with eBPF in the classifier *and* action part.

A link to iproute2 preview has been provided in patch 2 and the code
will be pushed out after Stephen has processed the classifier part
and helper bits for tc.

This set depends on ced585c83b ("act_bpf: allow non-default TC_ACT
opcodes as BPF exec outcome"), so a net into net-next merge would be
required first. Hope that's fine by you, Dave. ;)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 19:10:50 -04:00
Daniel Borkmann
a8cb5f556b act_bpf: add initial eBPF support for actions
This work extends the "classic" BPF programmable tc action by extending
its scope also to native eBPF code!

Together with commit e2e9b6541d ("cls_bpf: add initial eBPF support
for programmable classifiers") this adds the facility to implement fully
flexible classifier and actions for tc that can be implemented in a C
subset in user space, "safely" loaded into the kernel, and being run in
native speed when JITed.

Also, since eBPF maps can be shared between eBPF programs, it offers the
possibility that cls_bpf and act_bpf can share data 1) between themselves
and 2) between user space applications. That means that, f.e. customized
runtime statistics can be collected in user space, but also more importantly
classifier and action behaviour could be altered based on map input from
the user space application.

For the remaining details on the workflow and integration, see the cls_bpf
commit e2e9b6541d. Preliminary iproute2 part can be found under [1].

  [1] http://git.breakpoint.cc/cgit/dborkman/iproute2.git/log/?h=ebpf-act

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 19:10:44 -04:00
Daniel Borkmann
94caee8c31 ebpf: add sched_act_type and map it to sk_filter's verifier ops
In order to prepare eBPF support for tc action, we need to add
sched_act_type, so that the eBPF verifier is aware of what helper
function act_bpf may use, that it can load skb data and read out
currently available skb fields.

This is bascially analogous to 96be4325f4 ("ebpf: add sched_cls_type
and map it to sk_filter's verifier ops").

BPF_PROG_TYPE_SCHED_CLS and BPF_PROG_TYPE_SCHED_ACT need to be
separate since both will have a different set of functionality in
future (classifier vs action), thus we won't run into ABI troubles
when the point in time comes to diverge functionality from the
classifier.

The future plan for act_bpf would be that it will be able to write
into skb->data and alter selected fields mirrored in struct __sk_buff.

For an initial support, it's sufficient to map it to sk_filter_ops.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Pirko <jiri@resnulli.us>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 19:10:44 -04:00
David S. Miller
0fa74a4be4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/emulex/benet/be_main.c
	net/core/sysctl_net_core.c
	net/ipv4/inet_diag.c

The be_main.c conflict resolution was really tricky.  The conflict
hunks generated by GIT were very unhelpful, to say the least.  It
split functions in half and moved them around, when the real actual
conflict only existed solely inside of one function, that being
be_map_pci_bars().

So instead, to resolve this, I checked out be_main.c from the top
of net-next, then I applied the be_main.c changes from 'net' since
the last time I merged.  And this worked beautifully.

The inet_diag.c and sysctl_net_core.c conflicts were simple
overlapping changes, and were easily to resolve.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 18:51:09 -04:00
Herbert Xu
6626af6926 rhashtable: Fix undeclared EEXIST build error on ia64
We need to include linux/errno.h in rhashtable.h since it doesn't
always get included otherwise.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 18:18:45 -04:00
Al Viro
4de930efc2 net: validate the range we feed to iov_iter_init() in sys_sendto/sys_recvfrom
Cc: stable@vger.kernel.org # v3.19
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:38:06 -04:00
David S. Miller
b4c11cb437 Merge branch 'amd-xgbe-next'
Tom Lendacky says:

====================
amd-xgbe: AMD XGBE driver updates 2015-03-19

The following series of patches includes functional updates and changes
to the driver.

- Use the phydev->advertising field instead of the phydev->supported
  field when configuring for auto-negotiation, etc.
- Use the phy_driver flags field for setting the transceiver type
  instead of hardcoding it in the ethtool support.
- Provide an auto-negotiation timeout check
- Clarify the Tx/Rx queue information messages
- Use the new DMA memory barrier operations
- Set the device DMA mask based on what the hardware reports
- Remove the software implementation of Tx coalescing
- Fix the reporting of the Rx coalescing value
- Use napi_alloc_skb when allocating an SKB in softirq

This patch series is based on net-next.

Changes from v2:
- Use jiffies instead of timespec for the auto-negotiation timeout check
- Remove the Rx path SKB allocation re-work patch since we should only
  inline the headers and the current code guards better against any
  hardware bugs

Changes from v1:
- Default to 32-bit DMA width (minimum supported) if hardware returns
  an unexpected DMA width value
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:34:03 -04:00
Lendacky, Thomas
385565a1f0 amd-xgbe: Use napi_alloc_skb when allocating skb in softirq
Use the napi_alloc_skb function to allocate an skb when running within
the softirq context to avoid calls to local_irq_save/restore.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:57 -04:00
Lendacky, Thomas
4a57ebcc2c amd-xgbe: Fix Rx coalescing reporting
The Rx coalescing value is internally converted from usecs to a value
that the hardware can use. When reporting the Rx coalescing value, this
internal value is converted back to usecs. During the conversion from
and back to usecs some rounding occurs. So, for example, when setting an
Rx usec of 30, it will be reported as 29. Fix this reporting issue by
keeping the original usec value and using that during reporting.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:57 -04:00
Lendacky, Thomas
c635eaacbf amd-xgbe: Remove Tx coalescing
The Tx coalescing support in the driver was a software implementation
for something lacking in the hardware. Using hrtimers, the idea was to
trigger a timer interrupt after having queued a packet for transmit.
Unfortunately, as the timer value was lowered, the timer expired before
the hardware actually did the transmit and so it was racey and resulted
in unnecessary interrupts.

Remove the Tx coalescing support and hrtimer and replace with a Tx timer
that is used as a reclaim timer in case of inactivity.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:57 -04:00
Lendacky, Thomas
386d325dbd amd-xgbe: Set DMA mask based on hardware register value
The hardware supplies a value that indicates the DMA range that it
is capable of using. Use this value rather than hard-coding it in
the driver.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:57 -04:00
Lendacky, Thomas
ceb8f6be7e amd-xgbe: Use the new DMA memory barriers where appropriate
Use the new lighter weight memory barriers when working with the device
descriptors.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:57 -04:00
Lendacky, Thomas
600c8811d3 amd-xgbe: Clarify output message about queues
Clarify that the queues referred to in a message when the device is
brought up are hardware queues and not necessarily related to the
Linux network queues.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:57 -04:00
Lendacky, Thomas
9ae5eecdba amd-xgbe-phy: Provide support for auto-negotiation timeout
Currently, there is no interrupt code that indicates auto-negotiation
has timed out. If the auto-negotiation has timed out then the start of
a new auto-negotiation will begin again with a new base page being
received. The state machine could be in a state that is not expecting
this interrupt code which results in an error during auto-negotiation.

Update the code to timestamp when the auto-negotiation starts.  Should
another page received interrupt code occur before auto-negotiation has
completed but after the auto-negotiation timeout, then reset the state
machine to allow the auto-negotiation to continue.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:56 -04:00
Lendacky, Thomas
65f57cb152 amd-xgbe-phy: Use the phy_driver flags field
Remove the setting of the transceiver type when retrieving the device
settings using ethtool and instead set the transceiver type in the
phy_driver structure flags field. Change the transceiver type to be
internal, also.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:56 -04:00
Lendacky, Thomas
d9663c8c21 amd-xgbe-phy: Use phydev advertising field vs supported
With ethtool being able to control what is advertised, the advertising
field is what should be used for priming the auto-negotiation registers
and for various other checks, instead of the supported field.

Also, move the initial setting of the supported and advertising fields
into the probe function so that they are not reset each time the device
is brought up, thus allowing the user to set as desired before bringing
the device up.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:33:56 -04:00
Catalin Marinas
91edd096e2 net: compat: Update get_compat_msghdr() to match copy_msghdr_from_user() behaviour
Commit db31c55a6f (net: clamp ->msg_namelen instead of returning an
error) introduced the clamping of msg_namelen when the unsigned value
was larger than sizeof(struct sockaddr_storage). This caused a
msg_namelen of -1 to be valid. The native code was subsequently fixed by
commit dbb490b965 (net: socket: error on a negative msg_namelen).

In addition, the native code sets msg_namelen to 0 when msg_name is
NULL. This was done in commit (6a2a2b3ae0 net:socket: set msg_namelen
to 0 if msg_name is passed as NULL in msghdr struct from userland) and
subsequently updated by 08adb7dabd (fold verify_iovec() into
copy_msghdr_from_user()).

This patch brings the get_compat_msghdr() in line with
copy_msghdr_from_user().

Fixes: db31c55a6f (net: clamp ->msg_namelen instead of returning an error)
Cc: David S. Miller <davem@davemloft.net>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 16:31:09 -04:00