linux-2.6-microblaze.git
11 years agotcp: Change return value of tcp_rcv_established()
Vijay Subramanian [Tue, 3 Sep 2013 19:23:22 +0000 (12:23 -0700)]
tcp: Change return value of tcp_rcv_established()

tcp_rcv_established() returns only one value namely 0. We change the return
value to void (as suggested by David Miller).

After commit 0c24604b (tcp: implement RFC 5961 4.2), we no longer send RSTs in
response to SYNs. We can remove the check and processing on the return value of
tcp_rcv_established().

We also fix jtcp_rcv_established() in tcp_probe.c to match that of
tcp_rcv_established().

Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: tcp_probe: adapt tbuf size for recent changes
Daniel Borkmann [Tue, 3 Sep 2013 16:24:02 +0000 (18:24 +0200)]
net: tcp_probe: adapt tbuf size for recent changes

With recent changes in tcp_probe module (e.g. f925d0a62d ("net: tcp_probe:
add IPv6 support")) we also need to take into account that tbuf needs to
be updated as format string will be further expanded. tbuf sits on the stack
in tcpprobe_read() function that is invoked when user space reads procfs
file /proc/net/tcpprobe, hence not fast path as in jtcp_rcv_established().
Having a size similarly as in sctp_probe module of 256 bytes is fully
sufficient for that, we need theoretical maximum of 252 bytes otherwise we
could get truncated.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: remove a stray semicolon
Dan Carpenter [Tue, 3 Sep 2013 09:13:47 +0000 (12:13 +0300)]
qlcnic: remove a stray semicolon

Just remove a small semicolon.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Fix sparse warning.
Sucheta Chakraborty [Tue, 3 Sep 2013 09:07:37 +0000 (05:07 -0400)]
qlcnic: Fix sparse warning.

This patch fixes warning "warning: symbol 'qlcnic_set_dcb_ops' was
not declared. Should it be static?"

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agox25: add a sanity check parsing X.25 facilities
Dan Carpenter [Tue, 3 Sep 2013 09:03:40 +0000 (12:03 +0300)]
x25: add a sanity check parsing X.25 facilities

This was found with a manual audit and I don't have a reproducer.  We
limit ->calling_len and ->called_len when we get them from
copy_from_user() in x25_ioctl() so when they come from skb->data then
we should cap them there as well.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocaif: add a sanity check to the tty name
Dan Carpenter [Tue, 3 Sep 2013 09:02:32 +0000 (12:02 +0300)]
caif: add a sanity check to the tty name

"tty->name" and "name" are a 64 character buffers.  My static checker
complains because we add the "cf" on the front so it look like we are
copying a 66 character string into a 64 character buffer.

Also if the name is larger than IFNAMSIZ (16) it triggers a BUG_ON()
inside the call to alloc_netdev().

This is all under CAP_SYS_ADMIN so it's not a security fix, it just adds
a little robustness.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoibmveth: Fix little endian issues
Anton Blanchard [Mon, 2 Sep 2013 23:55:32 +0000 (09:55 +1000)]
ibmveth: Fix little endian issues

The hypervisor is big endian, so little endian kernel builds need
to byteswap.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: netx-eth: remove unnecessary casting
Jingoo Han [Mon, 2 Sep 2013 23:54:04 +0000 (08:54 +0900)]
net: netx-eth: remove unnecessary casting

Casting from 'void *' is unnecessary, because casting from 'void *'
to any pointer type is automatic.

Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocnic: Update version to 2.5.18.
Michael Chan [Mon, 2 Sep 2013 18:42:32 +0000 (11:42 -0700)]
cnic: Update version to 2.5.18.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocnic: Eliminate local copy of pfid.
Michael Chan [Mon, 2 Sep 2013 18:42:31 +0000 (11:42 -0700)]
cnic: Eliminate local copy of pfid.

Use bp->pfid from bnx2x instead to avoid duplication.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocnic: Eliminate CNIC_PORT macro and port_mode in local struct.
Michael Chan [Mon, 2 Sep 2013 18:42:30 +0000 (11:42 -0700)]
cnic: Eliminate CNIC_PORT macro and port_mode in local struct.

Use BP_PORT and chip_port_mode directly from bnx2x.h to avoid duplication.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocnic: Redefine BNX2X_HW_CID using existing bnx2x macros
Michael Chan [Mon, 2 Sep 2013 18:42:29 +0000 (11:42 -0700)]
cnic: Redefine BNX2X_HW_CID using existing bnx2x macros

to avoid duplication of the same logic.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agocnic: Use CHIP_NUM macros from bnx2x.h
Michael Chan [Mon, 2 Sep 2013 18:42:28 +0000 (11:42 -0700)]
cnic: Use CHIP_NUM macros from bnx2x.h

This eliminates duplication and ensures that all bnx2x chips will be
supported.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: correctly interlink lower/upper devices
Veaceslav Falico [Mon, 2 Sep 2013 14:26:51 +0000 (16:26 +0200)]
net: correctly interlink lower/upper devices

Currently we're linking upper devices to lower ones, which results in
upside-down relationship: upper devices seeing lower devices via its upper
lists.

Fix this by correctly linking lower devices to the upper ones.

CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Cong Wang <amwang@redhat.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agotunnels: harmonize cleanup done on skb on rx path
Nicolas Dichtel [Mon, 2 Sep 2013 13:34:58 +0000 (15:34 +0200)]
tunnels: harmonize cleanup done on skb on rx path

The goal of this patch is to harmonize cleanup done on a skbuff on rx path.
Before this patch, behaviors were different depending of the tunnel type.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agotunnels: harmonize cleanup done on skb on xmit path
Nicolas Dichtel [Mon, 2 Sep 2013 13:34:57 +0000 (15:34 +0200)]
tunnels: harmonize cleanup done on skb on xmit path

The goal of this patch is to harmonize cleanup done on a skbuff on xmit path.
Before this patch, behaviors were different depending of the tunnel type.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoskb: allow skb_scrub_packet() to be used by tunnels
Nicolas Dichtel [Mon, 2 Sep 2013 13:34:56 +0000 (15:34 +0200)]
skb: allow skb_scrub_packet() to be used by tunnels

This function was only used when a packet was sent to another netns. Now, it can
also be used after tunnel encapsulation or decapsulation.

Only skb_orphan() should not be done when a packet is not crossing netns.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovxlan: remove net arg from vxlan[6]_xmit_skb()
Nicolas Dichtel [Mon, 2 Sep 2013 13:34:55 +0000 (15:34 +0200)]
vxlan: remove net arg from vxlan[6]_xmit_skb()

This argument is not used, let's remove it.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoiptunnels: remove net arg from iptunnel_xmit()
Nicolas Dichtel [Mon, 2 Sep 2013 13:34:54 +0000 (15:34 +0200)]
iptunnels: remove net arg from iptunnel_xmit()

This argument is not used, let's remove it.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobonding: drop read_lock in bond_compute_features
nikolay@redhat.com [Mon, 2 Sep 2013 11:51:42 +0000 (13:51 +0200)]
bonding: drop read_lock in bond_compute_features

bond_compute_features is always called with RTNL held, so we can safely
drop the read bond->lock.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobonding: drop read_lock in bond_fix_features
nikolay@redhat.com [Mon, 2 Sep 2013 11:51:41 +0000 (13:51 +0200)]
bonding: drop read_lock in bond_fix_features

We're protected by RTNL so nothing can happen and we can safely drop the
read bond->lock.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobonding: simplify bond_3ad_update_lacp_rate and use RTNL for sync
nikolay@redhat.com [Mon, 2 Sep 2013 11:51:40 +0000 (13:51 +0200)]
bonding: simplify bond_3ad_update_lacp_rate and use RTNL for sync

We can drop the use of bond->lock for mutual exclusion in
bond_3ad_update_lacp_rate and use RTNL in the sysfs store function
instead. This way we'll prevent races with mode change and interface
up/down as well as simplify update_lacp_rate by removing the check for
port->slave because it'll always be initialized (done while enslaving
with RTNL). This change will also help in the future removal of reader
bond->lock from bond_enslave.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobonding: trivial: remove outdated comment and braces
nikolay@redhat.com [Mon, 2 Sep 2013 11:51:39 +0000 (13:51 +0200)]
bonding: trivial: remove outdated comment and braces

We don't have to release all slaves when closing the bond dev, so remove
the outdated comment and the braces around the left single statement.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobonding: simplify and fix peer notification
nikolay@redhat.com [Mon, 2 Sep 2013 11:51:38 +0000 (13:51 +0200)]
bonding: simplify and fix peer notification

This patch aims to remove a use of the bond->lock for mutual exclusion
which will later allow easier migration to RCU of the users of this
functionality. We use RTNL as a synchronizing mechanism since it's
always held when send_peer_notif is set, and when it is decremented from
the notifier function. We can also drop some locking, and fix the
leakage of the send_peer_notif counter.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovhost_net: correctly limit the max pending buffers
Jason Wang [Mon, 2 Sep 2013 08:41:01 +0000 (16:41 +0800)]
vhost_net: correctly limit the max pending buffers

As Michael point out, We used to limit the max pending DMAs to get better cache
utilization. But it was not done correctly since it was one done when there's no
new buffers submitted from guest. Guest can easily exceeds the limitation by
keeping sending packets.

So this patch moves the check into main loop. Tests shows about 5%-10%
improvement on per cpu throughput for guest tx.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovhost_net: poll vhost queue after marking DMA is done
Jason Wang [Mon, 2 Sep 2013 08:41:00 +0000 (16:41 +0800)]
vhost_net: poll vhost queue after marking DMA is done

We used to poll vhost queue before making DMA is done, this is racy if vhost
thread were waked up before marking DMA is done which can result the signal to
be missed. Fix this by always polling the vhost thread before DMA is done.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovhost_net: determine whether or not to use zerocopy at one time
Jason Wang [Mon, 2 Sep 2013 08:40:59 +0000 (16:40 +0800)]
vhost_net: determine whether or not to use zerocopy at one time

Currently, even if the packet length is smaller than VHOST_GOODCOPY_LEN, if
upend_idx != done_idx we still set zcopy_used to true and rollback this choice
later. This could be avoided by determining zerocopy once by checking all
conditions at one time before.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovhost: switch to use vhost_add_used_n()
Jason Wang [Mon, 2 Sep 2013 08:40:58 +0000 (16:40 +0800)]
vhost: switch to use vhost_add_used_n()

Let vhost_add_used() to use vhost_add_used_n() to reduce the code
duplication. To avoid the overhead brought by __copy_to_user(). We will use
put_user() when one used need to be added.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovhost_net: use vhost_add_used_and_signal_n() in vhost_zerocopy_signal_used()
Jason Wang [Mon, 2 Sep 2013 08:40:57 +0000 (16:40 +0800)]
vhost_net: use vhost_add_used_and_signal_n() in vhost_zerocopy_signal_used()

We tend to batch the used adding and signaling in vhost_zerocopy_callback()
which may result more than 100 used buffers to be updated in
vhost_zerocopy_signal_used() in some cases. So switch to use
vhost_add_used_and_signal_n() to avoid multiple calls to
vhost_add_used_and_signal(). Which means much less times of used index
updating and memory barriers.

2% performance improvement were seen on netperf TCP_RR test.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovhost_net: make vhost_zerocopy_signal_used() return void
Jason Wang [Mon, 2 Sep 2013 08:40:56 +0000 (16:40 +0800)]
vhost_net: make vhost_zerocopy_signal_used() return void

None of its caller use its return value, so let it return void.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: sunhme: use pci_{get,set}_drvdata()
Jingoo Han [Mon, 2 Sep 2013 08:12:41 +0000 (17:12 +0900)]
net: sunhme: use pci_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data
using pci_dev instead of using dev_{get,set}_drvdata() with
&pdev->dev, so we can directly pass a struct pci_dev. This is
a purely cosmetic change.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: tulip: use pci_{get,set}_drvdata()
Jingoo Han [Mon, 2 Sep 2013 08:11:53 +0000 (17:11 +0900)]
net: tulip: use pci_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data
using pci_dev instead of using dev_{get,set}_drvdata() with
&pdev->dev, so we can directly pass a struct pci_dev. This is
a purely cosmetic change.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: mdio-octeon: use platform_{get,set}_drvdata()
Jingoo Han [Mon, 2 Sep 2013 08:10:09 +0000 (17:10 +0900)]
net: mdio-octeon: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data
using platform_device instead of using dev_{get,set}_drvdata()
with &pdev->dev, so we can directly pass a struct platform_device.
This is a purely cosmetic change.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: sunhme: use platform_{get,set}_drvdata()
Jingoo Han [Mon, 2 Sep 2013 08:08:44 +0000 (17:08 +0900)]
net: sunhme: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data
using platform_device instead of using dev_{get,set}_drvdata()
with &pdev->dev, so we can directly pass a struct platform_device.
This is a purely cosmetic change.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: emac: use platform_{get,set}_drvdata()
Jingoo Han [Mon, 2 Sep 2013 08:06:52 +0000 (17:06 +0900)]
net: emac: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data
using platform_device instead of using dev_{get,set}_drvdata()
with &pdev->dev, so we can directly pass a struct platform_device.
This is a purely cosmetic change.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agowireless: scan: Remove comment to compare_ether_addr
Joe Perches [Sun, 1 Sep 2013 22:48:27 +0000 (15:48 -0700)]
wireless: scan: Remove comment to compare_ether_addr

This function is being removed, so remove the reference to it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobatman: Remove reference to compare_ether_addr
Joe Perches [Sun, 1 Sep 2013 22:45:08 +0000 (15:45 -0700)]
batman: Remove reference to compare_ether_addr

This function is being removed, rename the reference.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agollc: Use normal etherdevice.h tests
Joe Perches [Sun, 1 Sep 2013 20:11:55 +0000 (13:11 -0700)]
llc: Use normal etherdevice.h tests

Convert the llc_<foo> static inlines to the
equivalents from etherdevice.h and remove
the llc_<foo> static inline functions.

llc_mac_null -> is_zero_ether_addr
llc_mac_multicast -> is_multicast_ether_addr
llc_mac_match -> ether_addr_equal

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agodrivers/net: Convert uses of compare_ether_addr to ether_addr_equal
Joe Perches [Sun, 1 Sep 2013 18:51:23 +0000 (11:51 -0700)]
drivers/net: Convert uses of compare_ether_addr to ether_addr_equal

Use the new bool function ether_addr_equal to add
some clarity and reduce the likelihood for misuse
of compare_ether_addr for sorting.

Done via cocci script: (and a little typing)

$ cat compare_ether_addr.cocci
@@
expression a,b;
@@
- !compare_ether_addr(a, b)
+ ether_addr_equal(a, b)

@@
expression a,b;
@@
- compare_ether_addr(a, b)
+ !ether_addr_equal(a, b)

@@
expression a,b;
@@
- !ether_addr_equal(a, b) == 0
+ ether_addr_equal(a, b)

@@
expression a,b;
@@
- !ether_addr_equal(a, b) != 0
+ !ether_addr_equal(a, b)

@@
expression a,b;
@@
- ether_addr_equal(a, b) == 0
+ !ether_addr_equal(a, b)

@@
expression a,b;
@@
- ether_addr_equal(a, b) != 0
+ ether_addr_equal(a, b)

@@
expression a,b;
@@
- !!ether_addr_equal(a, b)
+ ether_addr_equal(a, b)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoUSB2NET : SR9700 : One chip USB 1.1 USB2NET SR9700Device Driver Support
Liu Junliang [Sun, 1 Sep 2013 11:38:08 +0000 (19:38 +0800)]
USB2NET : SR9700 : One chip USB 1.1 USB2NET SR9700Device Driver Support

Signed-off-by: Liu Junliang <liujunliang_ljl@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobe2net: set and query VEB/VEPA mode of the PF interface
Ajit Khaparde [Fri, 30 Aug 2013 20:01:16 +0000 (15:01 -0500)]
be2net: set and query VEB/VEPA mode of the PF interface

SkyHawk-R can support VEB or VEPA mode.
This patch will allow the user to set/query this switch setting.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: fix comment typo for __skb_alloc_pages()
Florian Fainelli [Fri, 30 Aug 2013 14:36:14 +0000 (15:36 +0100)]
net: fix comment typo for __skb_alloc_pages()

The name of the function in the comment is __skb_alloc_page() while we
are actually commenting __skb_alloc_pages(). Fix this typo and make it
a valid kernel doc comment.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agogianfar: Fix reported number of sent bytes to BQL
Claudiu Manoil [Fri, 30 Aug 2013 12:01:15 +0000 (15:01 +0300)]
gianfar: Fix reported number of sent bytes to BQL

Fix the amount of sent bytes reported to BQL by reporting the
number of bytes on wire in the xmit routine, and recording that
value for each skb in order to be correctly confirmed on Tx
confirmation cleanup.

Reporting skb->len to BQL just before exiting xmit is not correct
due to possible insertions of TOE block and alignment bytes in the
skb->data, which are being stripped off by the controller before
transmission on wire.  This led to mismatch of (incorrectly)
reported bytes to BQL b/w xmit and Tx confirmation, resulting in
Tx timeout firing, for the h/w tx timestamping acceleration case.

There's no easy way to obtain the number of bytes on wire in the Tx
confirmation routine, so skb->cb is used to convey that information
from xmit to Tx confirmation, for now (as proposed by Eric). Revived
the currently unused GFAR_CB() construct for that purpose.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonetconsole: avoid a crash with multiple sysfs writers
Dan Aloni [Fri, 30 Aug 2013 10:59:46 +0000 (13:59 +0300)]
netconsole: avoid a crash with multiple sysfs writers

When my 'ifup eth' script was fired multiple times and ran concurrent on
my laptop, for some obscure /etc scripting reason, it was revealed
that the store_enabled() function in netconsole doesn't handle it nicely,
as recorded by the Oops below (a syslog paste, but not mangled too much
to prevent from discerning the traceback).

On Linux 3.10.4, this patch seeks to remedy the problem, and it has been
running stable on my laptop for a few days.

[52608.609325] BUG: unable to handle kernel NULL pointer dereference at 00000000000003e0
[52608.609331] IP: [<ffffffff81532a17>] __netpoll_cleanup+0x27/0xe0
[52608.609339] PGD 15e51a067 PUD 15433e067 PMD 0
[52608.609343] Oops: 0000 [#1] SMP re firewire_ohci firewire_core crc_itu_t [last unloaded: kvm_intel]
[52608.609347] Modules linked in: kvm_intel tun vfat fat ppdev parport_pc parport fuse ipt_MASQUERADE usb_storage nf_conntrack_netbios_ns nf_conn [..garbled..]
[52608.609433] RAX: 0000000000000000 RBX: ffff880210bbcc68 RCX: 0000000000000000
[52608.609435] RDX: 0000000000000000 RSI: ffff8801ba447da0 RDI: ffff880210bbcc68
[52608.609437] RBP: ffff8801ba447e18 R08: 0000000000000000 R09: 0000000000000001
[52608.609439] R10: 000000000000000a R11: f000000000000000 R12: ffff880210bbcc68
[52608.609441] R13: ffff88020bc41000 R14: 0000000000000002 R15: 000000000000000200000000000
[52608.609443] FS:  00007f38d7bff740(0000) GS:ffff88021dc40000(0000) knlGS:0000000000000000
[52608.609446] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003300000000001427e0
[52608.609448] CR2: 00000000000003e0 CR3: 0000000154103000 CR4: 00000000001427e0
[52608.609450] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[52608.609452] netpoll: netconsole: local port 6665ess 10.0.0.27
[52608.609454] netpoll: netconsole: local IPv4 address 10.0.0.27
[52608.609456] netpoll: netconsole: interface 'em1'
[52608.609457] netpoll: netconsole: remote port 514ress 10.0.0.15
[52608.609459] netpoll: netconsole: remote IPv4 address 10.0.0.15:65:a8:9a:c7
[52608.609461] netpoll: netconsole: remote ethernet address 1c:6f:65:a8:9a:c7
[52608.609463] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[52608.609464] Stack:801ba447e08 ffff880210bbcc68 ffffffffffffffea ffff88020bc41000
[52608.609466]  ffff8801ba447e08 ffff880210bbcc68 ffffffffffffffea ffff88020bc41000
[52608.609471]  0000000000000002 0000000000000002 ffff8801ba447e38 ffffffff81532af4
[52608.609475]  0000000000000000 ffff880210bbcc00 ffff8801ba447e78 ffffffff81420e7c
[52608.609479] Call Trace:
[52608.609484]  [<ffffffff81532af4>] netpoll_cleanup+0x24/0x50
[52608.609489]  [<ffffffff81420e7c>] store_enabled+0x5c/0xe0
[52608.609492]  [<ffffffff81420abe>] netconsole_target_attr_store+0x2e/0x40
[52608.609498]  [<ffffffff811ff2a2>] configfs_write_file+0xd2/0x130
[52608.609503]  [<ffffffff81188f95>] vfs_write+0xc5/0x1f0
[52608.609506]  [<ffffffff81189482>] SyS_write+0x52/0xa0/0x10
[52608.609511]  [<ffffffff81628c2e>] ? do_page_fault+0xe/0x10
[52608.609516]  [<ffffffff8162d402>] system_call_fastpath+0x16/0x1b
[52608.609517] Code: 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 48 83 ec 30 4c 89 65 e0 48 89 5d d8 49 89 fc 4c 89 6d e8 4c 89 75 f0 4c 89 7d f8 48 8 [..garbled..]
[52608.609559] RIP  [<ffffffff81532a17>] __netpoll_cleanup+0x27/0xe0
[52608.609563]  RSP <ffff8801ba447de8>
[52608.609564] CR2: 00000000000003e0
[52608.609567] ---[ end trace d25ec343349b61d2 ]---

Signed-off-by: Dan Aloni <alonid@postram.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosh_eth: Enable Rx descriptor word 0 shift for r8a7790
Kouei Abe [Fri, 30 Aug 2013 03:41:08 +0000 (12:41 +0900)]
sh_eth: Enable Rx descriptor word 0 shift for r8a7790

This corrects an oversight when r8a7790 support was added to sh_eth.

Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agosh_eth: Fix cache invalidation omission of receive buffer
Kouei Abe [Fri, 30 Aug 2013 03:41:07 +0000 (12:41 +0900)]
sh_eth: Fix cache invalidation omission of receive buffer

Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobonding: use rlb_client_info->vlan_id instead of ->tag
Veaceslav Falico [Thu, 29 Aug 2013 21:38:57 +0000 (23:38 +0200)]
bonding: use rlb_client_info->vlan_id instead of ->tag

Store VID in ->vlan_id (if any), and remove the useless ->tag.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agobonding: remove bond_vlan_used()
Veaceslav Falico [Thu, 29 Aug 2013 21:38:56 +0000 (23:38 +0200)]
bonding: remove bond_vlan_used()

We're using it currently to verify if we have vlans before getting the tag
from the skb we're about to send. It's useless because the vlan_get_tag()
verifies if the skb has the tag (and returns an error if not), and we can
receive tagged skbs only if we *already* have vlans.

Plus, the current RCUed implementation is kind of useless anyway - the we
can remove the last vlan in the moment we return from the function.

So remove the only usage of it and the whole function.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'for-davem' of git://gitorious.org/linux-can/linux-can-next
David S. Miller [Wed, 4 Sep 2013 01:54:02 +0000 (21:54 -0400)]
Merge branch 'for-davem' of git://gitorious.org/linux-can/linux-can-next

Marc Kleine-Budde says:

====================
this is a pull request for net-next. There are two patches from Gerhard
Sittig, which improves the clock handling on mpc5121. Oliver Hartkopp
provides a patch that adds a per rule limitation of frame hops.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
David S. Miller [Wed, 4 Sep 2013 01:45:31 +0000 (21:45 -0400)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless-next

John W. Linville says:

====================
Please accept this batch of updates intended for the 3.12 stream.

For the mac80211 bits, Johannes says this:

"This time I have various improvements all over the place: IBSS, mesh,
testmode, AP client powersave handling, one of the rare rfkill patches
and some code cleanup."

Also for mac80211:

"And I also have some more changes for -next, just a few small fixes and
improvements, nothing really stands out."

And for iwlwifi:

"This time I have some powersave work (notably uAPSD support), CQM
offloads, support for a new firmware API and various code cleanups."

Regarding the Bluetooth bits, Gustavo says:

"Patches to 3.12, here we have:

* implementation of a proper tty_port for RFCOMM devices, this fixes some
issues people were seeing lately in the kernel.
* Add voice_setting option for SCO, it is used for SCO Codec selection
* bugfixes, small improvements and clean ups"

For the NFC bits, Samuel says:

"With this one we have:

- A few pn533 improvements and minor fixes. Testing our pn533 driver
  against Google's NCI stack triggered a few issues that we fixed now.
  We also added Tx fragmentation support to this driver.

- More NFC secure element handling. We added a GET_SE netlink command
  for getting all the discovered secure elements, and we defined 2
  additional secure element netlink event (transaction and connectivity).
  We also fixed a couple of typos and copy-paste bugs from the secure
  element handling code.

- Firmware download support for the pn544 driver. This chipset can enter a
  special mode where it's waiting for firmware blobs to replace the
  already flashed one. We now support that mode."

With repect to the ath tree, Kalle says:

"New features in ath10k are rx/tx checsumming in hw and survey scan
implemented by Michal. Also he made fixes to different areas of the
driver, most notable being fixing the case when using two streams and
reducing the number of interface combinations to avoid firmware crashes.
Bartosz did a clean related to how we handle SoC power save in PCI
layer.

For ath6kl Mohammed and Vasanth sent each a patch to fix two infrequent
crashes."

I also pulled the wireless tree into wireless-next to support a
request from Johannes.  On top of all that, there are the usual
sort of driver updates.  The mwifiex, brcmfmac, brcmsmac, ath9k,
and rt2x00 drivers all get some attention, as does the bcma bus and
a few other random bits here and there.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: sctp: probe: allow more advanced ingress filtering by mark
Daniel Borkmann [Thu, 29 Aug 2013 16:54:49 +0000 (18:54 +0200)]
net: sctp: probe: allow more advanced ingress filtering by mark

This is a follow-up commit for commit b1dcdc68b1f4 ("net: tcp_probe:
allow more advanced ingress filtering by mark") that allows for
advanced SCTP probe module filtering based on skb mark (for a more
detailed description and advantages using mark, refer to b1dcdc68b1f4).
The current option to filter by a given port is still being preserved.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: neighbour: Remove CONFIG_ARPD
Tim Gardner [Thu, 29 Aug 2013 12:38:47 +0000 (06:38 -0600)]
net: neighbour: Remove CONFIG_ARPD

This config option is superfluous in that it only guards a call
to neigh_app_ns(). Enabling CONFIG_ARPD by default has no
change in behavior. There will now be call to __neigh_notify()
for each ARP resolution, which has no impact unless there is a
user space daemon waiting to receive the notification, i.e.,
the case for which CONFIG_ARPD was designed anyways.

Suggested-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Gao feng <gaofeng@cn.fujitsu.com>
Cc: Joe Perches <joe@perches.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovirtio-net: Set RXCSUM feature if GUEST_CSUM is available
Thomas Huth [Tue, 27 Aug 2013 15:09:02 +0000 (17:09 +0200)]
virtio-net: Set RXCSUM feature if GUEST_CSUM is available

If the VIRTIO_NET_F_GUEST_CSUM virtio feature is available, the guest
does not have to calculate the checksums on all received packets. This
is pretty much the same feature as RX checksum offloading on real
network cards, so the virtio-net driver should report this by setting
the NETIF_F_RXCSUM flag. When the user now runs "ethtool -k", he or she
can see whether the virtio-net interface has to calculate RX checksums
or not.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'addr_assign_type'
David S. Miller [Wed, 4 Sep 2013 00:57:57 +0000 (20:57 -0400)]
Merge branch 'addr_assign_type'

Bjørn Mork says:

====================
net: set addr_assign_type when inheriting a dev_addr

Copying the dev_addr from a parent device is an operation
common to a number of drivers. The addr_assign_type should
be updated accordingly, either by reusing the value from
the source device or explicitly indicating that the address
is stolen by setting addr_assign_type to NET_ADDR_STOLEN.

This patch set adds a helper copying both the dev_addr and
the addr_assign_type, and use this helper in drivers which
don't currently set the addr_assign_type. Using NET_ADDR_STOLEN
might be more appropriate in some of these cases.  Please
let me know, and I'll update the patch accordingly.

Changes in v2:
 - assuming addr_len == ETH_ALEN to allow optimized memcpy
 - dropped the vt6656 patch due to addr_len being unset in that driver
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agostaging: vt6655: inherit addr_assign_type along with dev_addr
Bjørn Mork [Fri, 30 Aug 2013 16:08:52 +0000 (18:08 +0200)]
staging: vt6655: inherit addr_assign_type along with dev_addr

A device inheriting a random or set address should reflect this in
its addr_assign_type.

Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: libertas: inherit addr_assign_type along with dev_addr
Bjørn Mork [Fri, 30 Aug 2013 16:08:51 +0000 (18:08 +0200)]
net: libertas: inherit addr_assign_type along with dev_addr

A device inheriting a random or set address should reflect this in
its addr_assign_type.

Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: hostap: inherit addr_assign_type along with dev_addr
Bjørn Mork [Fri, 30 Aug 2013 16:08:50 +0000 (18:08 +0200)]
net: hostap: inherit addr_assign_type along with dev_addr

A device inheriting a random or set address should reflect this in
its addr_assign_type.

Cc: Jouni Malinen <j@w1.fi>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: airo: inherit addr_assign_type along with dev_addr
Bjørn Mork [Fri, 30 Aug 2013 16:08:49 +0000 (18:08 +0200)]
net: airo: inherit addr_assign_type along with dev_addr

A device inheriting a random or set address should reflect this in
its addr_assign_type.

Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: team: inherit addr_assign_type along with dev_addr
Bjørn Mork [Fri, 30 Aug 2013 16:08:48 +0000 (18:08 +0200)]
net: team: inherit addr_assign_type along with dev_addr

A device inheriting a random or set address should reflect this in
its addr_assign_type.

Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: macvlan: inherit addr_assign_type along with dev_addr
Bjørn Mork [Fri, 30 Aug 2013 16:08:47 +0000 (18:08 +0200)]
net: macvlan: inherit addr_assign_type along with dev_addr

A device inheriting a random or set address should reflect this in
its addr_assign_type.

Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: dsa: inherit addr_assign_type along with dev_addr
Bjørn Mork [Fri, 30 Aug 2013 16:08:46 +0000 (18:08 +0200)]
net: dsa: inherit addr_assign_type along with dev_addr

A device inheriting a random or set address should reflect this in
its addr_assign_type.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: vlan: inherit addr_assign_type along with dev_addr
Bjørn Mork [Fri, 30 Aug 2013 16:08:45 +0000 (18:08 +0200)]
net: vlan: inherit addr_assign_type along with dev_addr

A device inheriting a random or set address should reflect this in
its addr_assign_type.

Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: etherdevice: add address inherit helper
Bjørn Mork [Fri, 30 Aug 2013 16:08:44 +0000 (18:08 +0200)]
net: etherdevice: add address inherit helper

Some etherdevices inherit their address from a parent or
master device. The addr_assign_type should be updated along
with the address in these cases.  Adding a helper function
to simplify this.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: make snmp_mib_free static inline
Cong Wang [Mon, 2 Sep 2013 02:06:53 +0000 (10:06 +0800)]
net: make snmp_mib_free static inline

Fengguang reported:

   net/built-in.o: In function `in6_dev_finish_destroy':
   (.text+0x4ca7d): undefined reference to `snmp_mib_free'

this is due to snmp_mib_free() is defined when CONFIG_INET is enabled,
but in6_dev_finish_destroy() is now moved to core kernel.

I think snmp_mib_free() is small enough to be inlined, so just make it
static inline.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovxlan: include net/ip6_checksum.h for csum_ipv6_magic()
Cong Wang [Mon, 2 Sep 2013 02:06:52 +0000 (10:06 +0800)]
vxlan: include net/ip6_checksum.h for csum_ipv6_magic()

Fengguang reported a compile warning:

   drivers/net/vxlan.c: In function 'vxlan6_xmit_skb':
   drivers/net/vxlan.c:1352:3: error: implicit declaration of function 'csum_ipv6_magic' [-Werror=implicit-function-declaration]
   cc1: some warnings being treated as errors

this patch fixes it.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovxlan: fix flowi6_proto value
Cong Wang [Mon, 2 Sep 2013 02:06:51 +0000 (10:06 +0800)]
vxlan: fix flowi6_proto value

It should be IPPROTO_UDP.

Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'qlcnic'
David S. Miller [Sun, 1 Sep 2013 02:35:26 +0000 (22:35 -0400)]
Merge branch 'qlcnic'

Shahed Shaikh says:

====================
This patch series contains -
* Enhanced PVID handling for 84xx adapters by
  not indicating PVID configuration to VF driver and
  keeping VF driver in no VLAN configuration mode becasue
  adapter supports VLAN stripping.
* Removed inappropriate usage of inline keyword.
* Enhanced minidump feature by using firmware recommended
  dump capture mask and using CAMRAM register to store
  firmware dump state.
* AER handling support for 83xx adapter.
* Added support for per port eswitch configuration.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Update version to 5.3.50
Shahed Shaikh [Fri, 30 Aug 2013 17:51:24 +0000 (13:51 -0400)]
qlcnic: Update version to 5.3.50

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Add support for per port eswitch configuration
Sony Chacko [Fri, 30 Aug 2013 17:51:23 +0000 (13:51 -0400)]
qlcnic: Add support for per port eswitch configuration

There is an embedded switch per physical port on the adapter.
Add support for enabling and disabling the embedded switch
on per port basis.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Restructuring of qlc_83xx_fw_info structure.
Pratik Pujar [Fri, 30 Aug 2013 17:51:22 +0000 (13:51 -0400)]
qlcnic: Restructuring of qlc_83xx_fw_info structure.

o Removed unused and unnecessary members from qlc_83xx_fw_info
  structure.
o Made fw_info member of qlcnic_hardware_context as a pointer to
  qlc_83xx_fw_info structure.
o Added a member fw_file_name to qlc_83xx_fw_info structure which
  will hold the name of firmware image file name.

Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Add AER support for 83xx adapter
Pratik Pujar [Fri, 30 Aug 2013 17:51:21 +0000 (13:51 -0400)]
qlcnic: Add AER support for 83xx adapter

Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Add AER callback handlers.
Pratik Pujar [Fri, 30 Aug 2013 17:51:20 +0000 (13:51 -0400)]
qlcnic: Add AER callback handlers.

o Generic AER callback handlers will make use of qlcnic_hardware_ops structure
  to call adapter specific handlers.

Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Store firmware dump state in CAMRAM register
Shahed Shaikh [Fri, 30 Aug 2013 17:51:19 +0000 (13:51 -0400)]
qlcnic: Store firmware dump state in CAMRAM register

-Use CAMRAM register to store firmware dump state in adapter
 instead of maintaining it in each function driver separately.
-Return appropriate error code on failure

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Use firmware recommended dump capture mask as default
Shahed Shaikh [Fri, 30 Aug 2013 17:51:18 +0000 (13:51 -0400)]
qlcnic: Use firmware recommended dump capture mask as default

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Remove inline keyword
Manish Chopra [Fri, 30 Aug 2013 17:51:17 +0000 (13:51 -0400)]
qlcnic: Remove inline keyword

o Remove inline keyword from function prototypes wherever it is not appropriate.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqlcnic: Enhance PVID handling for 84xx adapters
Manish Chopra [Fri, 30 Aug 2013 17:51:16 +0000 (13:51 -0400)]
qlcnic: Enhance PVID handling for 84xx adapters

o PF driver should not indicate PVID configuration to VF driver.
  As adapter supports VLAN stripping, VF driver should stay agnostic
  to any PVID configuration.

o Return "QLC_NO_VLAN_MODE(= 0)" to VFD when PVID is configured.
  VF driver should be in no VLAN configuration mode.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: unify skb_udp_tunnel_segment() and skb_udp6_tunnel_segment()
Cong Wang [Sat, 31 Aug 2013 05:44:38 +0000 (13:44 +0800)]
net: unify skb_udp_tunnel_segment() and skb_udp6_tunnel_segment()

As suggested by Pravin, we can unify the code in case of duplicated
code.

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: Add generic UDP Tunnel segmentation
Cong Wang [Sat, 31 Aug 2013 05:44:37 +0000 (13:44 +0800)]
ipv6: Add generic UDP Tunnel segmentation

Similar to commit 731362674580cb0c696cd1b1a03d8461a10cf90a
(tunneling: Add generic Tunnel segmentation)

This patch adds generic tunneling offloading support for
IPv6-UDP based tunnels.

This can be used by tunneling protocols like VXLAN.

Cc: Jesse Gross <jesse@nicira.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovxlan: add ipv6 proxy support
Cong Wang [Sat, 31 Aug 2013 05:44:36 +0000 (13:44 +0800)]
vxlan: add ipv6 proxy support

This patch adds the IPv6 version of "arp_reduce", ndisc_send_na()
will be needed.

Cc: David S. Miller <davem@davemloft.net>
Cc: David Stevens <dlstevens@us.ibm.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: move in6_dev_finish_destroy() into core kernel
Cong Wang [Sat, 31 Aug 2013 05:44:35 +0000 (13:44 +0800)]
ipv6: move in6_dev_finish_destroy() into core kernel

in6_dev_put() will be needed by vxlan module, so is
in6_dev_finish_destroy().

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovxlan: add ipv6 route short circuit support
Cong Wang [Sat, 31 Aug 2013 05:44:34 +0000 (13:44 +0800)]
vxlan: add ipv6 route short circuit support

route short circuit only has IPv4 part, this patch adds
the IPv6 part. nd_tbl will be needed.

Cc: David S. Miller <davem@davemloft.net>
Cc: David Stevens <dlstevens@us.ibm.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agovxlan: add ipv6 support
Cong Wang [Sat, 31 Aug 2013 05:44:33 +0000 (13:44 +0800)]
vxlan: add ipv6 support

This patch adds IPv6 support to vxlan device, as the new version
RFC already mentions it:

   http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-03

Cc: David Stevens <dlstevens@us.ibm.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: do not call ndisc_send_rs() with write lock
Cong Wang [Sat, 31 Aug 2013 05:44:32 +0000 (13:44 +0800)]
ipv6: do not call ndisc_send_rs() with write lock

Because vxlan module will call ip6_dst_lookup() in TX path,
which will hold write lock. So we have to release this write lock
before calling ndisc_send_rs(), otherwise could deadlock.

Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: export in6addr_loopback to modules
Cong Wang [Sat, 31 Aug 2013 05:44:31 +0000 (13:44 +0800)]
ipv6: export in6addr_loopback to modules

It is needed by vxlan module. Noticed by Mike.

Cc: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: export a stub for IPv6 symbols used by vxlan
Cong Wang [Sat, 31 Aug 2013 05:44:30 +0000 (13:44 +0800)]
ipv6: export a stub for IPv6 symbols used by vxlan

In case IPv6 is compiled as a module, introduce a stub
for ipv6_sock_mc_join and ipv6_sock_mc_drop etc.. It will be used
by vxlan module. Suggested by Ben.

This is an ugly but easy solution for now.

Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: move ip6_local_out into core kernel
Cong Wang [Sat, 31 Aug 2013 05:44:29 +0000 (13:44 +0800)]
ipv6: move ip6_local_out into core kernel

It will be used the vxlan kernel module.

Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipv6: move ip6_dst_hoplimit() into core kernel
Cong Wang [Sat, 31 Aug 2013 05:44:28 +0000 (13:44 +0800)]
ipv6: move ip6_dst_hoplimit() into core kernel

It will be used by vxlan, and may not be inlined.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc...
David S. Miller [Sun, 1 Sep 2013 02:24:24 +0000 (22:24 -0400)]
Merge branch 'for-davem' of git://git./linux/kernel/git/bwh/sfc-next

Ben Hutchings says:

====================
1. A little more refactoring.
2. Remove the unnecessary use of atomic_t that you pointed out.
3. Add support for starting or queueing firmware requests from atomic
context.
4. Add hwmon support for additional sensors found on some new boards.
5. Add support for the EF10 controller architecture, the SFC9100 family
and specifically the SFC9120 controller.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqdisc: fix build with !CONFIG_NET_SCHED
stephen hemminger [Sat, 31 Aug 2013 17:15:33 +0000 (10:15 -0700)]
qdisc: fix build with !CONFIG_NET_SCHED

Multiqueue scheduler refers to default_qdisc_ops; therefore the
variable definition needs to be moved to handle case where net
scheduler API is not available.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqdisc: make args to qdisc_create_default const
stephen hemminger [Sat, 31 Aug 2013 17:15:50 +0000 (10:15 -0700)]
qdisc: make args to qdisc_create_default const

Fixes warnings introduced by the qdisc default patch.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoqdisc: allow setting default queuing discipline
stephen hemminger [Tue, 27 Aug 2013 23:19:08 +0000 (16:19 -0700)]
qdisc: allow setting default queuing discipline

By default, the pfifo_fast queue discipline has been used by default
for all devices. But we have better choices now.

This patch allow setting the default queueing discipline with sysctl.
This allows easy use of better queueing disciplines on all devices
without having to use tc qdisc scripts. It is intended to allow
an easy path for distributions to make fq_codel or sfq the default
qdisc.

This patch also makes pfifo_fast more of a first class qdisc, since
it is now possible to manually override the default and explicitly
use pfifo_fast. The behavior for systems who do not use the sysctl
is unchanged, they still get pfifo_fast

Also removes leftover random # in sysctl net core.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet/fec: cleanup types in fec_get_mac()
Dan Carpenter [Thu, 29 Aug 2013 08:25:14 +0000 (11:25 +0300)]
net/fec: cleanup types in fec_get_mac()

My static checker complains that on some arches unsigned longs can be 8
characters which is larger than the buffer is only 6 chars.
Additionally, Ben Hutchings points out that the buffer actually holds
big endian data and the buffer we are reading from is CPU endian.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: stmmac: use dev_get_platdata()
Jingoo Han [Fri, 30 Aug 2013 05:13:46 +0000 (14:13 +0900)]
net: stmmac: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: macb: use dev_get_platdata()
Jingoo Han [Fri, 30 Aug 2013 05:12:21 +0000 (14:12 +0900)]
net: macb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: at91_ether: use dev_get_platdata()
Jingoo Han [Fri, 30 Aug 2013 05:11:53 +0000 (14:11 +0900)]
net: at91_ether: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: mdio-mux-gpio: use dev_get_platdata()
Jingoo Han [Fri, 30 Aug 2013 05:09:26 +0000 (14:09 +0900)]
net: mdio-mux-gpio: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: mdio-gpio: use dev_get_platdata()
Jingoo Han [Fri, 30 Aug 2013 05:08:55 +0000 (14:08 +0900)]
net: mdio-gpio: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: ixp4xx_eth: use dev_get_platdata()
Jingoo Han [Fri, 30 Aug 2013 05:08:22 +0000 (14:08 +0900)]
net: ixp4xx_eth: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: w5100: use dev_get_platdata()
Jingoo Han [Fri, 30 Aug 2013 05:07:38 +0000 (14:07 +0900)]
net: w5100: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet: w5300: use dev_get_platdata()
Jingoo Han [Fri, 30 Aug 2013 05:07:06 +0000 (14:07 +0900)]
net: w5300: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>