firefly-linux-kernel-4.4.55.git
10 years agobatman-adv: remove returns at the end of void functions
Antonio Quartulli [Sat, 16 Nov 2013 22:02:51 +0000 (23:02 +0100)]
batman-adv: remove returns at the end of void functions

Return at the end of void functions is not needed.

Since most of the void functions in the code do not do so,
make all the others consistent by removing the useless
returns. Actually all the functions to be "fixed" are in
network-coding.h only.

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
10 years agobatman-adv: add debugfs support to view multiif tables
Simon Wunderlich [Thu, 21 Nov 2013 10:52:16 +0000 (11:52 +0100)]
batman-adv: add debugfs support to view multiif tables

Show tables for the multi interface operation. Originator tables
are added per hard interface.

This patch also changes the API by adding the interface to the
bat_orig_print() parameters.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agobatman-adv: add debugfs structure for information per interface
Simon Wunderlich [Thu, 21 Nov 2013 13:16:12 +0000 (14:16 +0100)]
batman-adv: add debugfs structure for information per interface

To show information per interface, add a debugfs hardif structure
similar to the system in sysfs. Hard interface folders will be created
in "$debugfs/batman-adv/". Files are not yet added.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agobatman-adv: add bonding again
Simon Wunderlich [Wed, 13 Nov 2013 18:14:50 +0000 (19:14 +0100)]
batman-adv: add bonding again

With the new interface alternating, the first hop may send packets
in a round robin fashion to it's neighbors because it has multiple
valid routes built by the multi interface optimization. This patch
enables the feature if bonding is selected. Note that unlike the
bonding implemented before, this version is much simpler and may
even enable multi path routing to a certain degree.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agobatman-adv: consider outgoing interface in OGM sending
Simon Wunderlich [Wed, 13 Nov 2013 18:14:49 +0000 (19:14 +0100)]
batman-adv: consider outgoing interface in OGM sending

The current OGM sending an aggregation functionality decides on
which interfaces a packet should be sent when it parses the forward
packet struct. However, with the network wide multi interface
optimization the outgoing interface is decided by the OGM processing
function.

This is reflected by moving the decision in the OGM processing function
and add the outgoing interface in the forwarding packet struct. This
practically implies that an OGM may be added multiple times (once per
outgoing interface), and this also affects aggregation which needs to
consider the outgoing interface as well.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agobatman-adv: add WiFi penalty
Simon Wunderlich [Wed, 13 Nov 2013 18:14:48 +0000 (19:14 +0100)]
batman-adv: add WiFi penalty

If the same interface is used for sending and receiving, there might be
throughput degradation on half-duplex interfaces such as WiFi. Add a
penalty if the same interface is used to reflect this problem in the
metric. At the same time, change the hop penalty from 30 to 15 so there
will be no change for single wifi mesh network. the effective hop
penalty will stay at 30 due to the new wifi penalty for these networks.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agobatman-adv: split out router from orig_node
Simon Wunderlich [Wed, 13 Nov 2013 18:14:47 +0000 (19:14 +0100)]
batman-adv: split out router from orig_node

For the network wide multi interface optimization there are different
routers for each outgoing interface (outgoing from the OGM perspective,
incoming for payload traffic). To reflect this, change the router and
associated data to a list of routers.

While at it, rename batadv_orig_node_get_router() to
batadv_orig_router_get() to follow the new naming scheme.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agobatman-adv: split tq information in neigh_node struct
Simon Wunderlich [Wed, 13 Nov 2013 18:14:46 +0000 (19:14 +0100)]
batman-adv: split tq information in neigh_node struct

For the network wide multi interface optimization it is required to save
metrics per outgoing interface in one neighbor. Therefore a new type is
introduced to keep interface-specific information. This also requires
some changes in access and list management.

The compare and equiv_or_better API calls are changed to take the
outgoing interface into consideration.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agobatman-adv: remove bonding and interface alternating
Simon Wunderlich [Wed, 13 Nov 2013 18:14:45 +0000 (19:14 +0100)]
batman-adv: remove bonding and interface alternating

Remove bonding and interface alternating code - it will be replaced
by a new, network-wide multi interface optimization which enables
both bonding and interface alternating in a better way.

Keep the sysfs and find router function though, this will be needed
later.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agoMerge branch 'alx_stats'
David S. Miller [Sun, 12 Jan 2014 04:53:03 +0000 (20:53 -0800)]
Merge branch 'alx_stats'

Sabrina Dubroca says:

====================
alx: add statistics

Currently, the alx driver doesn't support statistics [1,2]. The
original alx driver [3] that Johannes Berg modified provided
statistics. This patch is an adaptation of the statistics code from
the original driver to the alx driver included in the kernel.

v4:
 - modified the assignements of hw stats to netstats (Ben Hutchings)
 - added comments to describe the stats fields (copied from atlx)

v3:
 - renamed __alx_update_hw_stats to alx_update_hw_stats (Stephen Hemminger)

v2:
 - use u64 instead of unsigned long  (Ben Hutchings)
 - implement ndo_get_stats64 instead of ndo_get_stats (Ben Hutchings)
 - use EINVAL instead of ENOTSUPP  (Ben Hutchings)
 - add BUILD_BUG_ON to check the size of the stats (Johannes Berg, Ben
   Hutchings)
 - add a comment regarding persistence of the stats (Stephen Hemminger)
 - align assignments in __alx_update_hw_stats

[1] https://bugzilla.kernel.org/show_bug.cgi?id=63401
[2] http://www.spinics.net/lists/netdev/msg245544.html
[3] https://github.com/mcgrof/alx
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoalx: add stats to ethtool
Sabrina Dubroca [Thu, 9 Jan 2014 09:09:31 +0000 (10:09 +0100)]
alx: add stats to ethtool

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoalx: add alx_get_stats64 operation
Sabrina Dubroca [Thu, 9 Jan 2014 09:09:30 +0000 (10:09 +0100)]
alx: add alx_get_stats64 operation

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoalx: add stats update function
Sabrina Dubroca [Thu, 9 Jan 2014 09:09:29 +0000 (10:09 +0100)]
alx: add stats update function

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoalx: add constants for the stats fields
Sabrina Dubroca [Thu, 9 Jan 2014 09:09:28 +0000 (10:09 +0100)]
alx: add constants for the stats fields

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoalx: add a hardware stats structure
Sabrina Dubroca [Thu, 9 Jan 2014 09:09:27 +0000 (10:09 +0100)]
alx: add a hardware stats structure

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Sun, 12 Jan 2014 04:51:10 +0000 (20:51 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates

This series contains updates to i40e and now i40evf.

Most notable is Jacob's patch to add PTP support to i40e.

Mitch cleans up additional memcpy's and use struct assignment instead.
Then fixes long lines to appease checkpatch.pl.  Mitch then provides
a fix to keep us from spamming the log with confusing errors.  If you
use ip to change the MAC address of a VF while the VF driver is loaded,
closing the VF interface or unloading the VF driver will cause the VF
driver to remove the MAC filter for its original (now invalid) MAC
address.

Jesse cleans up macros which are no longer needed or used.

I (Jeff) cleanup function header comments to ensure Doxygen/kdoc works
correctly to generate documentation without warnings.

Anjali fixes a bug where ethtool set-channels would return failure when
configuring only one Rx queue.  Then fixes a bug where the driver was
erroneously exiting the driver unload path if one part of the unload
failed.

Shannon fixes if the IPV6EXADD but is set in the Rx descriptor status,
there was an optional extension header with an alternate IP address
detected and the hardware checksum was not handling the alternate IP
address correctly.  Then adjusts the ITR max and min values to match
the hardware max value and recommended min value.  Shannon makes sure
to clear the PXE mode after the adminq is initialized.

v2:
 - fix patch 14 "i40e: enable PTP" to address Richard Cochran's spelling
   catch and Ben Hutchings Kconfig, SIOCGHWTSTAMP and sizeof() suggestions
 - added Paul Gortmaker's i40evf fix patch
v3:
 - fix patch 14 "i40e: enable PTP" to address Ben Hutchings concerns about
   a race with PTP init and cleanup and i40e_get_ts_info().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40evf: fix s390 build failure due to implicit prefetch.h
Paul Gortmaker [Sat, 11 Jan 2014 04:00:31 +0000 (04:00 +0000)]
i40evf: fix s390 build failure due to implicit prefetch.h

As of commit 7f12ad741a4870b8b6e3aafbcd868d0191770802 ("i40evf: transmit
and receive functionality") the s390 builds (allyesconfig) fail with:

drivers/net/ethernet/intel/i40evf/i40e_txrx.c: In function 'i40e_clean_rx_irq':
drivers/net/ethernet/intel/i40evf/i40e_txrx.c:818:3: error: implicit declaration of function 'prefetch'
make[5]: *** [drivers/net/ethernet/intel/i40evf/i40e_txrx.o] Error 1

due to an implicit assumption that the prototype from linux/prefetch.h
will be present.

Cc: Mitch Williams <mitch.a.williams@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: Bump version
Catherine Sullivan [Sat, 21 Dec 2013 05:44:52 +0000 (05:44 +0000)]
i40e: Bump version

Update the driver version to 0.3.28-k.

Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: fix log message wording
Shannon Nelson [Sat, 21 Dec 2013 05:44:51 +0000 (05:44 +0000)]
i40e: fix log message wording

Change the redundant "vsi VSI" to VSI.

Change-ID: Ic16ea5820a99abc7831713cde39e7d032a7ba4d3
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: enable PTP
Jacob Keller [Sat, 11 Jan 2014 05:43:19 +0000 (05:43 +0000)]
i40e: enable PTP

New feature: Enable PTP support in the i40e driver.

Change-ID: I6a8e799f582705191f9583afb1b9231a8db96cc8
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: call clear_pxe after adminq is initialized
Shannon Nelson [Sat, 21 Dec 2013 05:44:49 +0000 (05:44 +0000)]
i40e: call clear_pxe after adminq is initialized

In the latest firmware the clear_pxe_mode function will use the
AdminQ request, so call this after AdminQ is set up rather than
relying on i40e_pf_reset() to clear the PXE mode.

Change-ID: Ice8cba2e9cbc3c7bde0a0bcf8eaf5009abef040b
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: clear qtx_head before enabling Tx queue
Shannon Nelson [Sat, 21 Dec 2013 05:44:48 +0000 (05:44 +0000)]
i40e: clear qtx_head before enabling Tx queue

Make sure the "new" qtx_head[q] register is cleared before
enabling the Tx queue.

Change-ID: I0c7a12815e343a5ae68807af172a35d6c6857935
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: adjust ITR max and min values
Shannon Nelson [Sat, 21 Dec 2013 05:44:47 +0000 (05:44 +0000)]
i40e: adjust ITR max and min values

Set the ITR max and min values to match the hardware max value
and the recommended min value.  These values are shifted right
one bit because the register counts in 2 usec units, so leave
a comment to explain.

Change-ID: I289c27955cf6c566a6d21b95c3110b88cbb15dad
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: check for possible incorrect ipv6 checksum
Shannon Nelson [Sat, 21 Dec 2013 05:44:46 +0000 (05:44 +0000)]
i40e: check for possible incorrect ipv6 checksum

If the IPV6EXADD bit is set in the Rx descriptor status, there
was an optional extension header with an alternate IP address
detected.  The HW checksum offload doesn't handle the alternate
IP address correctly so likely comes up with the wrong answer.
Thus, if the bit is set we ignore the checksum offload value.

Change-ID: I70ff8d38cdcddccf44107691cae13d0c07c284c8
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: allow VF to remove any MAC filter
Mitch Williams [Sat, 21 Dec 2013 05:44:45 +0000 (05:44 +0000)]
i40e: allow VF to remove any MAC filter

If you use ip to change the MAC address of a VF while the VF
driver is loaded, closing the VF interface or unloading the VF
driver will cause the VF driver to remove the MAC filter for its
original (now invalid) MAC address. This would cause the PF
driver to kick an error message to the log, and back to the VF
driver.

Since the VF driver has not really done anything naughty, let's
not punish it. Don't check for MAC address overrides on the
delete operation, just make sure it's a valid address. This keeps
us from spamming the log with confusing errors.

Change-ID: I1f051bd4014e50855457d928c9ee8b0766981b2f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: do not bail when disabling if Tx queue disable fails
Anjali Singhai Jain [Sat, 21 Dec 2013 05:44:44 +0000 (05:44 +0000)]
i40e: do not bail when disabling if Tx queue disable fails

Fix a bug where the driver was erroneously exiting the driver unload
path if one part of the unload failed.  Instead of the original way
the driver should always continue when disabling and be sure to disable
all queues.

Change-ID: Ib8c81c596bc87c31d8e9ca97ebf871168475279d
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: Setting queue count to 1 using ethtool is valid
Anjali Singhai Jain [Sat, 21 Dec 2013 05:44:43 +0000 (05:44 +0000)]
i40e: Setting queue count to 1 using ethtool is valid

Fix a bug where ethtool set-channels would return failure when configuring
only one Rx queue.

Change-ID: Id833c48c17d71e352b30f3249f6acf9e7aaec57e
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: Cleanup Doxygen warnings
Jeff Kirsher [Sat, 21 Dec 2013 05:44:42 +0000 (05:44 +0000)]
i40e: Cleanup Doxygen warnings

These changes make Doxygen/kdoc work correctly without warnings.

Change-ID: I2941f38860be805ff7548d84dae35754c83f1d62
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
10 years agoi40e: fix long lines
Mitch Williams [Sat, 21 Dec 2013 05:44:41 +0000 (05:44 +0000)]
i40e: fix long lines

Avoid over-length lines in order to appease checkpatch.

Change-ID: I63820a710acf798f49d2f85c610228711af84f72
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: Bump version
Catherine Sullivan [Wed, 18 Dec 2013 13:46:07 +0000 (13:46 +0000)]
i40e: Bump version

Update driver version to 0.3.27-k

Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: Update the Current NVM version Low value
Anjali Singhai Jain [Wed, 18 Dec 2013 13:46:06 +0000 (13:46 +0000)]
i40e: Update the Current NVM version Low value

The current driver will warn the user if the NVM version
is out of date, this raises the bar to a newer version.

Change-ID: I5ec21d8efa4e7c3fdacb56f85d310bb2229b1483
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: drop unused macros
Jesse Brandeburg [Wed, 18 Dec 2013 13:46:05 +0000 (13:46 +0000)]
i40e: drop unused macros

A previous commit removed any need for these macros, so remove
them too.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: use assignment instead of memcpy
Mitch Williams [Wed, 18 Dec 2013 13:46:04 +0000 (13:46 +0000)]
i40e: use assignment instead of memcpy

These instances were found by coccinelle/spatch, and can
use struct assignment instead of memcpy.

Change-ID: Idc23c3599241bf8a658bda18c80417af3fbfee66
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoMerge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
David S. Miller [Fri, 10 Jan 2014 22:59:34 +0000 (17:59 -0500)]
Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge

Included changes:
- substitute FSF address with URL
- deselect current bat-GW when GW-client mode gets deactivated
- send every DHCP packet using bat-unicast messages when GW-client mode is
  enabled
- implement the Extended Isolation mechanism (it is an enhancement of the
  already existing batman-AP-isolation). This mechanism allows the user to drop
  packets exchanged by selected clients by using netfilter marks.
- fix typ0 in header guard
- minor code cleanups

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'tcp_metrics_saddr'
David S. Miller [Fri, 10 Jan 2014 22:38:33 +0000 (17:38 -0500)]
Merge branch 'tcp_metrics_saddr'

Christoph Paasch says:

====================
Make tcp-metrics source-address aware

Currently tcp-metrics only stores per-destination addresses. This brings
problems, when a host has multiple interfaces (e.g., a smartphone having
WiFi/3G):

For example, a host contacting a server over WiFi will store the tcp-metrics
per destination IP. If then the host contacts the same server over 3G, the
same tcp-metrics will be used, although the path-characteristics are completly
different (e.g., the ssthresh is probably not the same).

In case of TFO this is not a problem, as the server will provide us a new cookie
once he saw our SYN+DATA with an incorrect cookie.
It may be (in case of carrier-grade NAT), that we keep the same public IP but
have a different private IP. Thus, we better reuse the old cookie even if our
source-IP has changed. However, this scenario is probably very uncommon, as
carriers try to provide the same src-IP to the clients behind their CGN.

Patches 1 + 2 add the source-IP to the tcp metrics.

Patches 3 to 5 modify the netlink-api to support the source-IP. From now on,
when using the command "ip tcp_metrics delete address ADDRESS" all entries
which match this destination IP will be deleted.

Today's iproute2 will complain when doing "ip tcp_metrics flush PREFIX" if
several entries are present for the same destination-IP but with different
source-IPs:

root@client:~/test# ip tcp_metrics
10.2.1.2 age 3.640sec rtt 16250us rttvar 15000us cwnd 10
10.2.1.2 age 4.030sec rtt 18750us rttvar 15000us cwnd 10
root@client:~/test# ip tcp_metrics flush 10.2.1.2/16
Failed to send flush request
: No such process

Follow-up patches will modify iproute2 to handle this correctly and allow
specifying the source-IP in the get/del commands.

v2: Added the patch that allows to selectively get/del of tcp-metrics based
    on src-IP and moved the patch that adds the new netlink attribute before
    the other patches.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotcp: metrics: Allow selective get/del of tcp-metrics based on src IP
Christoph Paasch [Wed, 8 Jan 2014 15:05:59 +0000 (16:05 +0100)]
tcp: metrics: Allow selective get/del of tcp-metrics based on src IP

We want to be able to get/del tcp-metrics based on the src IP. This
patch adds the necessary parsing of the netlink attribute and if the
source address is set, it will match on this one too.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotcp: metrics: Delete all entries matching a certain destination
Christoph Paasch [Wed, 8 Jan 2014 15:05:58 +0000 (16:05 +0100)]
tcp: metrics: Delete all entries matching a certain destination

As we now can have multiple entries per destination-IP, the "ip
tcp_metrics delete address ADDRESS" command deletes all of them.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotcp: metrics: New netlink attribute for src IP and dumped in netlink reply
Christoph Paasch [Wed, 8 Jan 2014 15:05:57 +0000 (16:05 +0100)]
tcp: metrics: New netlink attribute for src IP and dumped in netlink reply

This patch adds a new netlink attribute for the source-IP and appends it
to the netlink reply. Now, iproute2 can have access to the source-IP.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotcp: metrics: Add source-address to tcp-metrics
Christoph Paasch [Wed, 8 Jan 2014 15:05:56 +0000 (16:05 +0100)]
tcp: metrics: Add source-address to tcp-metrics

We add the source-address to the tcp-metrics, so that different metrics
will be used per source/destination-pair. We use the destination-hash to
store the metric inside the hash-table. That way, deleting and dumping
via "ip tcp_metrics" is easy.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotcp: metrics: rename tcpm_addr to tcpm_daddr
Christoph Paasch [Wed, 8 Jan 2014 15:05:55 +0000 (16:05 +0100)]
tcp: metrics: rename tcpm_addr to tcpm_daddr

As we will add also the source-address, we rename all accesses to the
tcp-metrics address to use "daddr".

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
David S. Miller [Fri, 10 Jan 2014 19:53:33 +0000 (14:53 -0500)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless-next

John W. Linville says:

====================
Please pull these updates for the 3.14 stream!

For the mac80211 bits, Johannes says:

"Felix adds some helper functions for P2P NoA software tracking, Joe
fixes alignment (but as this apparently never caused issues I didn't
send it to 3.13), Kyeyoon/Jouni add QoS-mapping support (a Hotspot 2.0
feature), Weilong fixed a bunch of checkpatch errors and I get to play
fire-fighter or so and clean up other people's locking issues. I also
added nl80211 vendor-specific events, as we'd discussed at the wireless
summit."

For the iwlwifi bits, Emmanuel says:

"I have here a rework of the interrupt handling to meet RT kernel
requirements - basically we don't take any lock in the primary interrupt
handler. This gave me a good reason to clean things up a bit on the way.
There is also a fix of the QoS mapping along with a few workarounds for
hardware / firmware issues that are hard to hit.
Three fixes suggested by static analyzers, and other various stuff.
Most importantly, I update the Copyright note to include the new year."

For the bluetooth bits, Gustavo says:

"More patches to 3.14. The bulk of changes here is the 6LoWPAN support for
Bluetooth LE Devices. The commits that touches net/ieee802154/ are already
acked by David Miller. Other than that we have some RFCOMM fixes and
improvements plus fixes and clean ups all over the tree."

Beyond that, ath9k, brcmfmac, mwifiex, and wil6210 get their usual
level of attention.  The wl1251 driver gets a number of updates,
and there are a handful of other bits here and there.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
David S. Miller [Fri, 10 Jan 2014 19:50:02 +0000 (14:50 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
This batch contains one single patch with the l2tp match
for xtables, from James Chapman.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Fri, 10 Jan 2014 15:59:40 +0000 (10:59 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-next into for-davem

Conflicts:
net/ieee802154/6lowpan.c

10 years agoxen-netback: stop vif thread spinning if frontend is unresponsive
Paul Durrant [Wed, 8 Jan 2014 12:41:58 +0000 (12:41 +0000)]
xen-netback: stop vif thread spinning if frontend is unresponsive

The recent patch to improve guest receive side flow control (ca2f09f2) had a
slight flaw in the wait condition for the vif thread in that any remaining
skbs in the guest receive side netback internal queue would prevent the
thread from sleeping. An unresponsive frontend can lead to a permanently
non-empty internal queue and thus the thread will spin. In this case the
thread should really sleep until the frontend becomes responsive again.

This patch adds an extra flag to the vif which is set if the shared ring
is full and cleared when skbs are drained into the shared ring. Thus,
if the thread runs, finds the shared ring full and can make no progress the
flag remains set. If the flag remains set then the thread will sleep,
regardless of a non-empty queue, until the next event from the frontend.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agocxgb4: Changed FW check version to match FW binary version
Hariprasad Shenai [Wed, 8 Jan 2014 11:24:47 +0000 (16:54 +0530)]
cxgb4: Changed FW check version to match FW binary version

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoirda: sh_sir: use devm_request_irq()
Kuninori Morimoto [Wed, 8 Jan 2014 04:55:05 +0000 (20:55 -0800)]
irda: sh_sir: use devm_request_irq()

Huqiu reported current sh_sir driver doesn't
call free_irq() in spite of using request_irq().
This patch replaces request_irq() into devm_request_irq()
to solve this issue

Reported-by: Huqiu Liu<huqiuliu@gmail.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoirda: sh_irda: use devm_request_irq()
Kuninori Morimoto [Wed, 8 Jan 2014 04:54:55 +0000 (20:54 -0800)]
irda: sh_irda: use devm_request_irq()

Huqiu reported current sh_irda driver doesn't
call free_irq() in spite of using request_irq().
This patch replaces request_irq() into devm_request_irq()
to solve this issue

Reported-by: Huqiu Liu<huqiuliu@gmail.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoirda: fixup SH_SIR position on Kconfig
Kuninori Morimoto [Wed, 8 Jan 2014 04:54:46 +0000 (20:54 -0800)]
irda: fixup SH_SIR position on Kconfig

SH_SIR is not Dongle

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nftables
David S. Miller [Fri, 10 Jan 2014 02:36:01 +0000 (21:36 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/pablo/nftables

Pablo Neira Ayuso says:

====================
nf_tables updates for net-next

The following patchset contains the following nf_tables updates,
mostly updates from Patrick McHardy, they are:

* Add the "inet" table and filter chain type for this new netfilter
  family: NFPROTO_INET. This special table/chain allows IPv4 and IPv6
  rules, this should help to simplify the burden in the administration
  of dual stack firewalls. This also includes several patches to prepare
  the infrastructure for this new table and a new meta extension to
  match the layer 3 and 4 protocol numbers, from Patrick McHardy.

* Load both IPv4 and IPv6 conntrack modules in nft_ct if the rule is used
  in NFPROTO_INET, as we don't certainly know which one would be used,
  also from Patrick McHardy.

* Do not allow to delete a table that contains sets, otherwise these
  sets become orphan, from Patrick McHardy.

* Hold a reference to the corresponding nf_tables family module when
  creating a table of that family type, to avoid the module deletion
  when in use, from Patrick McHardy.

* Update chain counters before setting the chain policy to ensure that
  we don't leave the chain in inconsistent state in case of errors (aka.
  restore chain atomicity). This also fixes a possible leak if it fails
  to allocate the chain counters if no counters are passed to be restored,
  from Patrick McHardy.

* Don't check for overflows in the table counter if we are just renaming
  a chain, from Patrick McHardy.

* Replay the netlink request after dropping the nfnl lock to load the
  module that supports provides a chain type, from Patrick.

* Fix chain type module references, from Patrick.

* Several cleanups, function renames, constification and code
  refactorizations also from Patrick McHardy.

* Add support to set the connmark, this can be used to set it based on
  the meta mark (similar feature to -j CONNMARK --restore), from
  Kristian Evensen.

* A couple of fixes to the recently added meta/set support and nft_reject,
  and fix missing chain type unregistration if we fail to register our
  the family table/filter chain type, from myself.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonetfilter: nf_tables: fix error path in the init functions
Pablo Neira Ayuso [Thu, 9 Jan 2014 19:32:19 +0000 (20:32 +0100)]
netfilter: nf_tables: fix error path in the init functions

We have to unregister chain type if this fails to register netns.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: introduce l2tp match extension
James Chapman [Mon, 6 Jan 2014 10:17:08 +0000 (10:17 +0000)]
netfilter: introduce l2tp match extension

Introduce an xtables add-on for matching L2TP packets. Supports L2TPv2
and L2TPv3 over IPv4 and IPv6. As well as filtering on L2TP tunnel-id
and session-id, the filtering decision can also include the L2TP
packet type (control or data), protocol version (2 or 3) and
encapsulation type (UDP or IP).

The most common use for this will likely be to filter L2TP data
packets of individual L2TP tunnels or sessions. While a u32 match can
be used, the L2TP protocol headers are such that field offsets differ
depending on bits set in the header, making rules for matching generic
L2TP connections cumbersome. This match extension takes care of all
that.

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Thu, 9 Jan 2014 20:13:12 +0000 (15:13 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates

This series contains updates to i40e only.

Anjali provides a fix where interrupts were not being re-enabled on ICR0
even though they were auto masked by hardware.  Then provides a fix to
cleanup RSS initialization because it was doing some extra work, so
remove the extra work and any bugs it created when managing number of
queues.  Since hardware requires a full packet template to be pointed to
when adding hardware flow filters, add the template and use it for
programming filters.

Jesse provides a fix to replace the use of driver specific defines with
kernel ETH_ALEN defines.  Then disables packet split because with the
use of GRO, we do not need the extra bus overhead.  Fixes spelling
error in code comment.

Kamil provides a fix for the driver where the hardware expects the MAC
address in a very specific format and the driver was filing the data
incorrectly.

Mitch provides a fix to resolve a panic on reset by adding checks to
VSI->rx_rings.  Then shortens alloc_rx_buff_failed and
alloc_rx_page_failed variables since both part of an RX specific
structure so just remove the _rx part of the name.  Then fixes
badly formatted lines, long lines and mis-formatted lines.

Shannon provides a fix to call AQ to release any reservation held by this
PF on the NVM resource lock on startup, in order to clear anything that
might have been left over from a previous run.  Then removes interrupt on
AQ error since nearly everything we do is synchronous, using the
interrupt-on-error bit is unnecessary and causing unneeded interrupts.
Adds code to handle the ability to send messages among the physical
function interfaces by the admin queue.

Catherine sets the MFP flag earlier in software init and uses that flag
to decide if other hardware work-arounds are required which turns
off flow director in MFP mode.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoip_tunnel: fix sparse non static symbol warning
Wei Yongjun [Wed, 8 Jan 2014 13:59:30 +0000 (21:59 +0800)]
ip_tunnel: fix sparse non static symbol warning

Fixes the following sparse warning:

net/ipv4/ip_tunnel.c:116:18: warning:
 symbol 'tunnel_dst_check' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoopenvswitch: Use kmem_cache_free() instead of kfree()
Wei Yongjun [Wed, 8 Jan 2014 10:13:14 +0000 (18:13 +0800)]
openvswitch: Use kmem_cache_free() instead of kfree()

memory allocated by kmem_cache_alloc() should be freed using
kmem_cache_free(), not kfree().

Fixes: e298e5057006 ('openvswitch: Per cpu flow stats.')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonetfilter: nf_tables: rename nft_do_chain_pktinfo() to nft_do_chain()
Patrick McHardy [Thu, 9 Jan 2014 18:42:43 +0000 (18:42 +0000)]
netfilter: nf_tables: rename nft_do_chain_pktinfo() to nft_do_chain()

We don't encode argument types into function names and since besides
nft_do_chain() there are only AF-specific versions, there is no risk
of confusion.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: prohibit deletion of a table with existing sets
Patrick McHardy [Thu, 9 Jan 2014 18:42:41 +0000 (18:42 +0000)]
netfilter: nf_tables: prohibit deletion of a table with existing sets

We currently leak the set memory when deleting a table that still has
sets in it. Return EBUSY when attempting to delete a table with sets.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: take AF module reference when creating a table
Patrick McHardy [Thu, 9 Jan 2014 18:42:40 +0000 (18:42 +0000)]
netfilter: nf_tables: take AF module reference when creating a table

The table refers to data of the AF module, so we need to make sure the
module isn't unloaded while the table exists.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: perform flags validation before table allocation
Patrick McHardy [Thu, 9 Jan 2014 18:42:39 +0000 (18:42 +0000)]
netfilter: nf_tables: perform flags validation before table allocation

Simplifies error handling. Additionally use the correct type u32 for the
host byte order flags value.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: minor nf_chain_type cleanups
Patrick McHardy [Thu, 9 Jan 2014 18:42:38 +0000 (18:42 +0000)]
netfilter: nf_tables: minor nf_chain_type cleanups

Minor nf_chain_type cleanups:

- reorder struct to plug a hoe
- rename struct module member to "owner" for consistency
- rename nf_hookfn array to "hooks" for consistency
- reorder initializers for better readability

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: constify chain type definitions and pointers
Patrick McHardy [Thu, 9 Jan 2014 18:42:37 +0000 (18:42 +0000)]
netfilter: nf_tables: constify chain type definitions and pointers

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: replay request after dropping locks to load chain type
Patrick McHardy [Thu, 9 Jan 2014 18:42:36 +0000 (18:42 +0000)]
netfilter: nf_tables: replay request after dropping locks to load chain type

To avoid races, we need to replay to request after dropping the nfnl_mutex
to auto-load the chain type module.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: add missing module references to chain types
Patrick McHardy [Thu, 9 Jan 2014 18:42:35 +0000 (18:42 +0000)]
netfilter: nf_tables: add missing module references to chain types

In some cases we neither take a reference to the AF info nor to the
chain type, allowing the module to be unloaded while in use.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: fix chain type module reference handling
Patrick McHardy [Thu, 9 Jan 2014 18:42:34 +0000 (18:42 +0000)]
netfilter: nf_tables: fix chain type module reference handling

The chain type module reference handling makes no sense at all: we take
a reference immediately when the module is registered, preventing the
module from ever being unloaded.

Fix by taking a reference when we're actually creating a chain of the
chain type and release the reference when destroying the chain.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: fix check for table overflow
Patrick McHardy [Thu, 9 Jan 2014 18:42:33 +0000 (18:42 +0000)]
netfilter: nf_tables: fix check for table overflow

The table use counter is only increased for new chains, so move the check
to the correct position.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: restore chain change atomicity
Patrick McHardy [Thu, 9 Jan 2014 18:42:32 +0000 (18:42 +0000)]
netfilter: nf_tables: restore chain change atomicity

Chain counter validation is performed after the chain policy has
potentially been changed. Move counter validation/setting before
changing of the chain policy to fix this.

Additionally fix a memory leak if chain counter allocation fails
for new chains, remove an unnecessary free_percpu() and move
counter allocation for new chains

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nf_tables: split chain policy validation from actually setting it
Patrick McHardy [Thu, 9 Jan 2014 18:42:31 +0000 (18:42 +0000)]
netfilter: nf_tables: split chain policy validation from actually setting it

Currently nf_tables_newchain() atomicity is broken because of having
validation of some netlink attributes performed after changing attributes
of the chain. The chain policy is (currently) fine, but split it up as
preparation for the following fixes and to avoid future mistakes.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nft_meta: fix lack of validation of the input register
Pablo Neira Ayuso [Thu, 9 Jan 2014 19:03:55 +0000 (20:03 +0100)]
netfilter: nft_meta: fix lack of validation of the input register

We have to validate that the input register is in the range of
allowed registers, otherwise we can take a incorrect register
value as input that may lead us to a crash.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agonetfilter: nft_ct: Add support to set the connmark
Kristian Evensen [Tue, 7 Jan 2014 15:43:54 +0000 (16:43 +0100)]
netfilter: nft_ct: Add support to set the connmark

This patch adds kernel support for setting properties of tracked
connections. Currently, only connmark is supported. One use-case
for this feature is to provide the same functionality as
-j CONNMARK --save-mark in iptables.

Some restructuring was needed to implement the set op. The new
structure follows that of nft_meta.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
10 years agoath9k: Disable cross-band FCC
Sujith Manoharan [Thu, 9 Jan 2014 03:21:15 +0000 (08:51 +0530)]
ath9k: Disable cross-band FCC

Fast Channel Change across bands was enabled for
AR9462 recently, but this is causing baseband issues.
Disable it until this feature is tested well. Also,
remove the feature bit for AR9565 since it is
a single-band card and doesn't support this feature.

Cc: stable@vger.kernel.org
Reported-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Use correct channel for RX packets
Sujith Manoharan [Thu, 9 Jan 2014 03:21:14 +0000 (08:51 +0530)]
ath9k: Use correct channel for RX packets

Accessing the current channel definition in mac80211
when processing RX packets is problematic because it
could have been updated when a scan is issued. Since a
channel change involves flushing the existing packets
in the RX queue before a chip-reset is done, they would
be processed using the wrong band/channel information.

To avoid this, use the current channel information
maintained in the driver.

Cc: stable@vger.kernel.org
Reported-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Update WB335 PCI IDs
Sujith Manoharan [Thu, 9 Jan 2014 03:21:13 +0000 (08:51 +0530)]
ath9k: Update WB335 PCI IDs

* Add new AR9565 1.0/1.0.1/1.1 IDs
* Change Dell/Lenovo/Samsung cards to 2-Antenna with diversity.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agomwifiex: use a function to replace two copies of a code fragment
Bing Zhao [Wed, 8 Jan 2014 23:45:57 +0000 (15:45 -0800)]
mwifiex: use a function to replace two copies of a code fragment

Instead of having two copies of the code for device tree cfgdata
downloading, add a function to improve the code.

Reviewed-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agomwifiex: fix potential buffer overflow in dt configuration
Bing Zhao [Wed, 8 Jan 2014 23:45:56 +0000 (15:45 -0800)]
mwifiex: fix potential buffer overflow in dt configuration

If cfgdata length exceeds the command buffer size we will end up
getting buffer overflow problem. Fix it by checking the buffer
size less the command header length.

Reviewed-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowil6210: prefetch head of packet
Vladimir Kondratiev [Wed, 8 Jan 2014 09:50:49 +0000 (11:50 +0200)]
wil6210: prefetch head of packet

As soon as skb is ready to be reaped, prefetch 1-st cache line.
This accelerates data access that is performed later, during the
packet classification by the driver and IP stack.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowil6210: Fix IP version indication for Tx csum offload
Vladimir Kondratiev [Wed, 8 Jan 2014 09:50:48 +0000 (11:50 +0200)]
wil6210: Fix IP version indication for Tx csum offload

Bit DMA_CFG_DESC_TX_OFFLOAD_CFG_L3T_IPV4_POS should be set for IPv4
only. Don't set it for IPv6

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowil6210: interrupt moderation
Vladimir Kondratiev [Wed, 8 Jan 2014 09:50:47 +0000 (11:50 +0200)]
wil6210: interrupt moderation

Use hardware capabilities to limit IRQ generation to about 15 per msec
It corresponds to about 7 packets/IRQ when running iperf with default
parameters at 1.3Gbps

Do not enable this feature in the sniffer (monitor)  mode, because
interrupt moderation cause timestamp accuracy deterioration.
For the sniffer flow, it is important to get precise timestamp.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agobrcmfmac: add support for bcm43362 device
Arend van Spriel [Wed, 8 Jan 2014 09:49:33 +0000 (10:49 +0100)]
brcmfmac: add support for bcm43362 device

This patch adds support for the bcm43362 1x1 11n chipset. This
chipset is used in AP6210 wifi module found on Cubieboard [1].

[1] http://cubieboard.org/

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: fix NULL pointer dereference
Pavel Machek [Tue, 7 Jan 2014 12:13:28 +0000 (13:13 +0100)]
wl1251: fix NULL pointer dereference

wl1251: fix NULL pointer dereference

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Reported-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: add nvs file name to module firmware list
Pavel Machek [Tue, 7 Jan 2014 12:12:20 +0000 (13:12 +0100)]
wl1251: add nvs file name to module firmware list

Add nvs file name to module firmware list

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: enforce changed hw encryption support on monitor state change
David Gnedt [Tue, 7 Jan 2014 12:11:27 +0000 (13:11 +0100)]
wl1251: enforce changed hw encryption support on monitor state change

The firmware doesn't support per packet encryption selection, so disable hw
encryption support completely while a monitor interface is present to support
injection of packets (which shouldn't get encrypted by hw).
To enforce the changed hw encryption support force a disassociation on
non-monitor interfaces.
For disassociation a workaround using hw connection monitor is employed,
which temporary enables hw connection manager flag.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: disable retry and ACK policy for injected packets
David Gnedt [Tue, 7 Jan 2014 12:10:51 +0000 (13:10 +0100)]
wl1251: disable retry and ACK policy for injected packets

Set the retry limit to 0 and disable the ACK policy for injected packets.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: enable tx path in monitor mode if necessary for packet injection
David Gnedt [Tue, 7 Jan 2014 12:10:14 +0000 (13:10 +0100)]
wl1251: enable tx path in monitor mode if necessary for packet injection

If necessary enable the tx path in monitor mode for packet injection using
the JOIN command with BSS_TYPE_STA_BSS and zero BSSID.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: fix channel switching in monitor mode
David Gnedt [Tue, 7 Jan 2014 12:09:42 +0000 (13:09 +0100)]
wl1251: fix channel switching in monitor mode

Use the ENABLE_RX command for channel switching when no interface is present
(monitor mode only).
The advantage of ENABLE_RX is that it leaves the tx data path disabled in
firmware, whereas the usual JOIN command seems to transmit some frames at
firmware level.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: disable power saving in monitor mode
David Gnedt [Tue, 7 Jan 2014 12:09:06 +0000 (13:09 +0100)]
wl1251: disable power saving in monitor mode

Force power saving off while monitor interface is present.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: implement multicast address filtering (fwd)
David Gnedt [Tue, 7 Jan 2014 12:08:30 +0000 (13:08 +0100)]
wl1251: implement multicast address filtering (fwd)

Port multicast address filtering from wl1271 driver.
It sets up the hardware multicast address filter in configure_filter() with
addresses supplied through prepare_multicast().

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: configure hardware en-/decryption for monitor mode
David Gnedt [Tue, 7 Jan 2014 12:07:52 +0000 (13:07 +0100)]
wl1251: configure hardware en-/decryption for monitor mode

Disable hardware encryption (DF_ENCRYPTION_DISABLE) and decryption
(DF_SNIFF_MODE_ENABLE) via wl1251_acx_feature_cfg while monitor interface is
present.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: split RX and TX data path initialisation
David Gnedt [Tue, 7 Jan 2014 12:06:58 +0000 (13:06 +0100)]
wl1251: split RX and TX data path initialisation

Split up data path initialisation into RX and TX data path initialisation
functions. This change is required for channel switching in monitor mode.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: implement hardware ARP filtering
David Gnedt [Tue, 7 Jan 2014 12:06:24 +0000 (13:06 +0100)]
wl1251: implement hardware ARP filtering

Update hardware ARP filter configuration on BSS_CHANGED_ARP_FILTER
notification from mac80211.
Ported from wl1271 driver.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: retry power save entry
David Gnedt [Tue, 7 Jan 2014 12:05:45 +0000 (13:05 +0100)]
wl1251: retry power save entry

Port of the power save entry retry code from wl1251 driver version included
in the Maemo Fremantle kernel.
This tries to enable power save mode up to 3 times before failing.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agowl1251: fix scan behaviour while not associated
David Gnedt [Tue, 7 Jan 2014 12:04:53 +0000 (13:04 +0100)]
wl1251: fix scan behaviour while not associated

With a dissasociated card I often encoutered very long scan delays.

My guess is that it has something to do with the cards DTIM handling and
another firmware bug mentioned in the TI WLAN driver, which is described as
the card may never end scanning if the channel is overloaded because it
can't send probe requests. I think the firmware somehow also tries to
receive DTIM messages when the BSSID is not set. Therefore most of the time
it waits for DTIM messages and can't do scanning work.

Anyway we can workaround this misbehaviour by setting the HIGH_PRIORITY
bit for scans in disassociated state.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoi40e: Turn flow director off in MFP mode
Catherine Sullivan [Wed, 18 Dec 2013 13:46:03 +0000 (13:46 +0000)]
i40e: Turn flow director off in MFP mode

The driver needs to set the MFP flag earlier in i40e_sw_init
and then can use that flag to decide if other hardware
work-arouds are required.

Change-ID: Ib17ad1e3485f57b28845ab4722294a99f203bd48
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: Add a dummy packet template
Jesse Brandeburg [Wed, 18 Dec 2013 13:46:02 +0000 (13:46 +0000)]
i40e: Add a dummy packet template

The hardware requires a full packet template to be pointed to when adding
hardware flow filters.  This patch adds the template and uses it for
programming filters.

Change-ID: I09db9f4ab0207ca9c520ae36596d74e1a0663ae5
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: fix spelling errors
Jesse Brandeburg [Wed, 18 Dec 2013 13:46:01 +0000 (13:46 +0000)]
i40e: fix spelling errors

This patch does s/rebuid/rebuild/.

Change-ID: I77ff0c26db3d23ca5dc971b82d71b4ed8c6bcc14
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: trivial: formatting and checkpatch fixes
Mitch Williams [Wed, 18 Dec 2013 13:46:00 +0000 (13:46 +0000)]
i40e: trivial: formatting and checkpatch fixes

Fix some badly formatted lines, long lines and a mis-formatted else.

Change-ID: Iac2eef064ae27c55a0c3d9c15c525bf8fed8ab6f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: shorten wordy fields
Mitch Williams [Wed, 18 Dec 2013 13:45:59 +0000 (13:45 +0000)]
i40e: shorten wordy fields

The alloc_rx_buff_failed and alloc_rx_page_failed variables
are both part of an rx specific structure so just remove
the _rx part of the name.  No functional changes.

Change-ID: Icffa2f5d13c6f2b1e09cf45b9472b83c9dae8fc6
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: accept pf to pf adminq messages
Shannon Nelson [Wed, 18 Dec 2013 13:45:58 +0000 (13:45 +0000)]
i40e: accept pf to pf adminq messages

The admin queue can be used to send messages among the physical
function interfaces.  This adds the code to handle that case.

Change-ID: I0700fcc47e41433131a381f0eb72fc7b01b6bd87
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: remove interrupt on AQ error
Shannon Nelson [Wed, 18 Dec 2013 13:45:57 +0000 (13:45 +0000)]
i40e: remove interrupt on AQ error

Since nearly everything we do is synchronous, using the interrupt-on-error bit
is unnecessary and causing unneeded interrupts.  If anyone wants to use the bit
they can turn it on in individual AQ requests using the cmd_details parameter.

Change-ID: I4690a9c561d3e0836aeadb4f88f8a8702b1d1366
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: release NVM resource reservation on startup
Shannon Nelson [Wed, 18 Dec 2013 13:45:56 +0000 (13:45 +0000)]
i40e: release NVM resource reservation on startup

Call AQ to release any reservation held by this PF on the NVM resource
lock on startup, in order to clear anything that might have been left over from
a previous run.  The lock is only cleared by the requestor calling for it to be
cleared, on power-on, or firmware reset.  This should help limit the need for
rebooting a customer machine if something goes wrong on a firmware update or
some other action.

Change-ID: I8c8473e601d4ef512dda7baa77a6e75f2e5fea49
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: Cleanup reconfig rss path
Anjali Singhai Jain [Wed, 18 Dec 2013 13:45:55 +0000 (13:45 +0000)]
i40e: Cleanup reconfig rss path

RSS initialization was doing some extra work, remove the extra
work and any bugs it created when managing number of queues.

Change-ID: Iea75b04a70d73ce76947b6a177ce89ab4899d4c6
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: disable packet split
Jesse Brandeburg [Wed, 18 Dec 2013 13:45:54 +0000 (13:45 +0000)]
i40e: disable packet split

The driver and hardware support splitting packets on headers
but with the use of GRO we don't need the extra bus
overhead, so make this driver more like igb and ixgbe and
disable packet split.

Change-ID: Id42f2c3736baa9d5bdfe1f72d64226e7d8ebd737
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>