Commit Graph

52251 Commits

Author SHA1 Message Date
Neerav Parikh 51616018dd i40e: Add support for getlink, setlink ndo ops
Add support for bridge offload ndo_ops getlink and setlink to
enable bridge hardware mode as per the mode set via IFLA_BRIDGE_MODE.
The support is only enabled in case of a PF VSI and not available for
any other VSI type.

By default the i40e driver inserts a bridge as part of the bring-up
when a FDIR type VSI and/or a FCoE VSI is created. This bridge is
created in VEB mode by default i.e. after creating the bridge using
"Add VEB" AQ command the loopback for the PF's default VSI is enabled.

The patch adds capability where all the VSIs created as downlink to
the bridge inherits the loopback property and enables loopback only
if the uplink bridge is operating in VEB mode.
Hence, there is no need to explicitly enable loopback as part of
allocating resources for SR-IOV VFs and call to do that has been
removed.

In case a user-request is made either via "bridge" utility or using
the bridge netlink interface that requires to change the hardware
bridge mode then that would require a PF reset and rebuild of the
switch hierarchy.

Also update the copyright year.

Change-ID: I4d78fc1c83158efda29ba7be92239b74f75d6d25
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-By: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-24 21:57:05 -08:00
Greg Rose 96664483a3 i40e: Implement configfs for NPAR BW configuration
Add configfs controls to get, set and commit NPAR BW configurations.

We export three controls:
	min_bw - Can take a value from 0 to 100 inclusive
	max_bw - Can take a value from 1 to 100 inclusive
	commit - A write-only control that accepts only a value of 1 and will
		cause the BW settings to be permanently committed to NVM so
		that they are persistent across power cycles and system
		resets

The BW values are relative and are expressed as percentages.  For more
information on the interpretation of the BW settings see the Dell
specifications for NPAR.

Also update the copyright year.

Change-ID: Id7496ca65630b5037e32ba6a5a748fbc1632881b
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-By: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-24 21:42:40 -08:00
Greg Rose f4492db16d i40e: Add NPAR BW get and set functions
We need to be able to get, set and commit permanently the NPAR
partition BW configuration through configfs.  These are necessary
precursor functions for that feature.

Also update the copyright year.

Change-ID: I9d5ca160a9288145f1dd2042994028679fff55f3
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-24 21:28:11 -08:00
Mitch Williams 2bc7ee8ac5 i40e: enable packet split only when IOMMU present
When an IOMMU is in use, the packet split receive path shows a distinct
advantage over the single-buffer path because it minimizes DMA mapping
and unmapping. However, this is not an advantage for systems with no
IOMMU. At init time, check to see if an IOMMU is enabled and enable
packet split receives.

Change-ID: I4f70d2e9c31bbea3dc8fd0c5734959a6e6602210
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-24 21:13:35 -08:00
Ashish Shah 0e888980a3 i40evf: allow enabling of debug prints via ethtool
Copy setting from ethtool to the HW specific struct to actually
enable prints.  Change print from i40e to i40evf to differentiate
drivers in bare metal scenarios.

Also update the copyright year.

Change-ID: I06fee26247299a08f2e1c70fc811a9ea0931c4dd
Signed-off-by: Ashish Shah <ashish.n.shah@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-24 20:59:12 -08:00
Carolyn Wyborny 88eee9bc54 i40e: Add method to keep track of current rxnfc settings
This patch adds a struct to the VSI struct to keep track of rxnfc
settings done via ethtool.  Without this patch, the device can only
list the options available, not the current settings and this is not
clear to the user.  Without current settings, the available settings
never changing looks like a bug.

Also update the copyright year.

Change-ID: I087bbfdb33b330496a671630a7586773e3b3e589
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-24 20:44:40 -08:00
Catherine Sullivan e827845c7d i40e/i40evf: Use advertised speed settings in ethtool and refactor get_settings
Add a requested speed variable to the link_status struct to store the
last speeds we requested from the firmware (the speeds the FW will be
advertising with if autoneg is enabled).

Use the advertised speed settings in get_settings in ethtool now that
we have it.  Also set the requested speed settings in set_settings in
ethtool as they are requested and initialize them in probe based on what
the firmware remembers as the last requested speeds.

To accommodate some longer lines in this new code, and improve
readability I have added two functions i40e_get_settings_link_up
and i40e_get_settings_link_down which get_settings now calls first.
It then does all of the settings that happen regardless of link
state. Some PHY types that supported the same settings were also combined.

Also update the copyright year.

Change-ID: Ica0c5ac81b6069ea6a7406fce7482f7816d4455c
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-24 20:29:54 -08:00
Paul M Stillwell Jr f1abd7dbb3 i40e/i40evf: Fix output of i40e_debug_aq() for big endian machines
The function i40e_debug_aq() prints information helpful in debugging
admin queue commands, but it doesn't do so correctly on big endian machines.
This patch adds the appropriate LExx_TO_CPU wrappers for big endian
architectures.

Also update the copyright year.

Change-ID: I4b2dc229ed5bf6dfe35632a58cddf53c21aff4b0
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-24 18:35:38 -08:00
Tino Reichardt 92bf200881 net: via-rhine: add BQL support
Add Byte Queue Limits (BQL) support to via-rhine driver.

[edumazet] tweaked patch and changed TX_RING_SIZE from 16 to 64

Signed-off-by: Tino Reichardt <milky-kernel@mcmilk.de>
Tested-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-24 16:30:02 -05:00
Mahesh Bandewar 14c9551a32 bonding: Implement port churn-machine (AD standard 43.4.17).
The Churn Detection machines detect the situation where a port is operable,
but the Actor and Partner have not attached the link to an Aggregator and
brought the link into operation within a bound time period. Under normal
operation of the LACP, agreement between Actor and Partner should be reached
very rapidly. Continued failure to reach agreement can be symptomatic of
device failure.

Actor-churn-detection state-machine
Reviewed-by: Nikolay Aleksandrov <nikolay@redhat.com>

===================================

BEGIN=True + PortEnable=False
           |
           v
 +------------------------+   ActorPort.Sync=True  +------------------+
 |   ACTOR_CHURN_MONITOR  | ---------------------> |  NO_ACTOR_CHURN  |
 |========================|                        |==================|
 |    ActorChurn=False    |  ActorPort.Sync=False  | ActorChurn=False |
 | ActorChurn.Timer=Start | <--------------------- |                  |
 +------------------------+                        +------------------+
           |                                                ^
           |                                                |
  ActorChurn.Timer=Expired                                  |
           |                                       ActorPort.Sync=True
           |                                                |
           |                +-----------------+             |
           |                |   ACTOR_CHURN   |             |
           |                |=================|             |
           +--------------> | ActorChurn=True | ------------+
                            |                 |
                            +-----------------+

Similar for the Partner-churn-detection.

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-24 16:05:48 -05:00
Mahesh Bandewar bb54e58929 bonding: Verify RX LACPDU has proper dest mac-addr
The 802.1AX standard states:
"The DA in LACPDUs is the Slow_Protocols_Multicast address."

This patch enforces that and drops LACPDUs with destination MAC
addresses other than Slow_Protocols_Multicast address

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-24 16:05:47 -05:00
David S. Miller 2a12d6cf75 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-02-23

This series contains updates to e1000e, igbvf, i40e and i40evf.

David adds support for i219 devices to the e1000e driver.

Jeff (me) provides two patches to cleanup igbvf, first cleans up the
whitespace issues found and the second cleans up the usage of msleep(),
min() and max() with usleep_range(), min_t() and max_t() respectively.

Kamil updates the shadow RAM read/write functions by refactoring them
to prepare for future work.

Shannon renames the debugfs command "clear_stats pf" to clear_stats port"
to clarify what the function really does.

Mitch refactors the receive routine, by splitting the receive hot path
code into two, one for packet split and one for single buffer, which
improves receive performance.  Disables NAPI polling sooner when closing
the interface to fix an occasional panic during close which was
caused by the driver trying to delete and clean rings at the same time.
Also refactors reset for i40evf, since a recent change to the shutdown
flow messed up the reset flow.  Since i40evf_down() now holds the
critical section lock, we cannot call it from the reset handler, which
also holds the lock.

Nicholas restricts the virtual channel opcodes should remain consistent
between updates to the opcode enum.

Neerav converts the VSI connection type to use a #define instead of
using a magic number.

Anjali updates the registers file to remove registers no longer available.
Also fixes the EMPR interrupt handling, so that we won't trigger another
EMPR when we receive an EMPR event.

Catherine cleans up the variable an_enable since it was set and never
used.

Greg fixes the netdev op that allows the operator to turn MAC/VLAN
spoof checking on and off so that it includes the flag for VLAN spoof
checking.

v2: Updated patch #10 in the series to use test_and_clear_bit() as
    suggested by Sergei Shtylyov
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-24 11:48:48 -05:00
Petri Gynther 51a966a718 net: bcmgenet: rename bcmgenet_hw_params->bds_cnt and GENET_DEFAULT_BD_CNT
bcmgenet_hw_params->bds_cnt and GENET_DEFAULT_BD_CNT are used only in Tx init.
Rename them accordingly:
- bcmgenet_hw_params->bds_cnt => bcmgenet_hw_params->tx_bds_per_q
- GENET_DEFAULT_BD_CNT => GENET_Q16_TX_BD_CNT

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-24 11:39:04 -05:00
Petri Gynther 014012a491 net: bcmgenet: precalculate TxCB->bd_addr
There is 1-to-1 mapping between TxCBs and TxBDs. Precalculate TxCB->bd_addr
once in bcmgenet_init_dma() instead of doing it over and over needlessly in
bcmgenet_get_txcb().

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-24 11:39:04 -05:00
Petri Gynther 16c6d66788 net: bcmgenet: rework Tx queue init
1. Rename bcmgenet_init_multiq() to bcmgenet_init_tx_queues()
2. Fix bcmgenet_init_tx_queues() function description
3. Move Tx default queue init inside bcmgenet_init_tx_queues()
4. Modify bcmgenet_init_dma() to call bcmgenet_init_tx_queues()

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-24 11:39:04 -05:00
Petri Gynther 4f8b2d7d1b net: bcmgenet: bcmgenet_init_tx_ring() cleanup
1. Simplify function description
2. Rename function parameter write_ptr to start_ptr to better indicate use
3. Remove unnecessary local variable first_bd
4. Remove out-of-place comment "Unclassified traffic goes to ring 16"
5. Fix TDMA_WRITE_PTR register init

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-24 11:39:04 -05:00
Mitch Williams 54e16f64f0 i40evf: don't wait forever
Under rare circumstances, after a reset, set_rx_mode might get called
while the watchdog is running, which will cause a deadlock on the
critical section lock. To correct this, add a counter and give up trying
to get the lock after fifty tries. Log a message if this happens but
don't take any other action. Because this happens after a reset, all of
the Rx filters are still in place and the device won't lose
connectivity.

We can also get stuck during shutdown, if the PF has stopped communicating
with us, or if a reset is occurring. If we can't get the lock after a reasonable
amount of time, just error out. Something else bad is happening anyway, so
adding this filter is the least of our concern right now.

Change-ID: I159731e2a82a06b389ee31b34ce336548e05baa0
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:13:21 -08:00
Mitch Williams ac833bbf79 i40evf: refactor reset
A recent change to the shutdown flow messed up the reset flow. Since
i40evf_down now holds the critical section lock, we cannot call it from
the reset handler, which also holds the lock. To do so causes a deadlock
accompanied by wailing and gnashing of teeth. This is easily triggered
by running an ethtool self-test on the PF device.

Instead, we move the relevant portions of i40evf_down into the reset
handler and bend them to our will. Additionally, we can optimize the
reinit path by not deleting the MAC and VLAN filters and then adding
them back again. Instead, we just set the 'add' flag and let the
watchdog resynchronize the filter list with the PF driver. We also
reword a few messages to make them more consistent with the rest of the
driver.

Change-ID: I03dd92ae736f7719fca3564b12a2cf9b98c6cb18
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:13:20 -08:00
Mitch Williams 748c434bfa i40evf: disable NAPI polling sooner
When closing the interface, disable NAPI polling before any other
activities. This fixes an occasional panic during close caused by the
driver trying to delete and clean rings at the same time.

Change-ID: Ib4d427b13d310258ea85b248d535da70ecf0c1e9
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:13:19 -08:00
Greg Rose 30d71af54d i40e: Fix i40e_ndo_set_vf_spoofchk
The netdev op that allows the operator to turn MAC/VLAN spoof checking on
and off did not include the flag for VLAN spoof checking.  This patch
fixes that problem.

Change-ID: Ib4c9e639024a854592d97af22706544881ac3fcb
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:13:19 -08:00
Sravanthi Tangeda c952f6c719 i40e/i40evf: Bump Driver Versions
Bump i40e to 1.2.8 and i40evf to 1.2.2

Change-ID: I64f47c3367ea8ff2a53068e895d7a1f60726c871
Signed-off-by: Sravanthi Tangeda <sravanthi.tangeda@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:13:18 -08:00
Catherine Sullivan 21af70fbfe i40e/i40evf: Remove unused variable an_enable and function update_link_info
An_enable was never used only set so lets remove it. The function
update_link_info only did two things, call get_link_info and set
an_enabled. Therefore we should also remove update_link_info and
change all references to it to get_link_info.

Change-ID: Ie3022680fa7a94bfd495a4f5fc76a73701d85569
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:13:18 -08:00
Anjali Singhai Jain 9df42d1a8f i40e: Fix the EMPR interrupt received handling
We shouldn't trigger another EMPR when we receive an EMPR event.
This patch handles EMPR event reception with a different state
so that we can do the right thing for NVM.

Change-ID: I9cac70b3658600f016a65beb6fb157e1c1f9adf9
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:11:58 -08:00
Anjali Singhai Jain 5098850c9b i40e/i40evf: i40e_register.h updates
Some registers have been removed so take them out and
stop updating and looking at them.

Change-ID: I33da922c8de993a94dd8b8d8a2ae2146b8ca1a27
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:11:57 -08:00
Neerav Parikh 2b18e5914d i40e: Use #define for the VSI connection type
Use #defined VSI connection type values instead of using magic numbers.

Change-ID: I2f6cf7bf394d391e1c0fe61779e9e4ad8858154a
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:11:57 -08:00
Nicholas Nunley 396642a679 i40e/i40evf: restrict VC opcodes to their initial values
Until the time a more robust versioning scheme is needed/implemented all
established virtual channel opcode values should remain consistent between
updates to the opcode enum.

This patch repositions I40E_VIRTCHNL_OP_CONFIG_RSS to the end of the enum. In
its current position this opcode displaces the initial value of
I40E_VIRTCHNL_OP_EVENT and will cause PF/VF compatibility issues.

Going forward the expectation is either:
	a) All future opcode additions will be added as the last element of the
	enum. Once VF drivers start making use of the new commands the virtual
	channel version will need to be incremented and drivers will need to
	implement a simple version check whereby VF drivers can only load on
	PFs with a >= version.
	b) or, if needed, design and implement a more complicated API
	negotiation capability.

In either case PF drivers should always maintain backwards compatibility with
earlier VF driver versions.

Change-ID: Ie245daa09a231b6680ed793d648bdcc76caefe58
Signed-off-by: Nicholas Nunley <nicholas.d.nunley@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:11:56 -08:00
Mitch Williams a132af24e8 i40e/i40evf: Refactor the receive routines
Split the receive hot path code into two, one for packet split and one
for single buffer. This improves receive performance since we only need
to check if the ring is in packet split mode once per NAPI poll time,
not several times per packet. The single buffer code is further improved
by the removal of a bunch of code and several variables that are not
needed. On a receive-oriented test this can improve single-threaded
throughput.

Also refactor the packet split receive path to use a fixed buffer for
headers, like ixgbe does. This vastly reduces the number of DMA mappings
and unmappings we need to do, allowing for much better performance in
the presence of an IOMMU.

Lastly, correct packet split descriptor types now that we are actually
using them.

Change-ID: I3a194a93af3d2c31e77ff17644ac7376da6f3e4b
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by:  Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:11:56 -08:00
Shannon Nelson 694dc1cb0d i40e: rename debugfs clear_stats option
Change debugfs command from "clear_stats pf" to "clear_stats port"
to be clearer what the action is.  Also, limit the action to the
base PF, not the NPAR partitions.

Change-ID: I22aa39c0962d83a83a985097b1000ed7f8c66f3f
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:11:55 -08:00
Kamil Krawczyk d1bbe0ea76 i40e: update Shadow RAM read/write functions
This change is to refactor the read/write functions to support
future work.

Change-ID: I13150d5e3042f2c617362c0140dc7e6473ebcdee
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:11:55 -08:00
Jeff Kirsher 5beef769ec igbvf: cleanup msleep() and min/max() usage
Fixed a few cases of when we used msleep() when we should have been
using usleep_range().  Also updated the usage of min/max() to use
min_t/max_t().

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2015-02-23 17:11:54 -08:00
Jeff Kirsher 0340501b1c igbvf: Fix code comments and whitespace
Fix the code comments to align with the drivers/net/ commenting style.
Also fix other checkpatch errors such as using tabs where possible and
properly wrap lines to conform to the 80 char limit (unless it is
a string).

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2015-02-23 17:11:54 -08:00
David Ertman 79849ebc0e e1000e: initial support for i219
i219 is the next-generation LOM that will be available on systems with the
Sunrise Point Platform Controller Hub (PCH) chipset from Intel.  This patch
provides the initial support for the device.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Carmen Edwards <carmenx.edwards@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-23 17:11:53 -08:00
Sathya Perla f962f840f8 be2net: move be_func_init() call inside be_setup()
Every time be_setup() is called, the driver will have to wait for the
function/FW to be properly initialized. So, it make sense to move this call
inside be_setup().

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:32 -05:00
Kalesh AP 87ac1a5296 be2net: refactor adapter resource cleanup sequence into be_cleanup()
Most of the resource cleanup sequences performed in be_suspend(),
be_eeh_err_detected() and be_err_detection_task() are same. Moved the
common code to a new routine be_cleanup() to avoid code duplication.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:32 -05:00
Kalesh AP 484d76fd51 be2net: refactor adapter resource initialzation sequence into be_resume()
Most of the adapter initialisation sequences performed in be_resume(),
be_eeh_resume() and be_err_recover() are same. Renamed be_resume() to
be_pci_resume() and moved the common code to a new routine be_resume() to
avoid code duplication.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:32 -05:00
Sathya Perla 9fa465c0ce be2net: remove code duplication relating to Lancer reset sequence
The steps needed for Lancer's reset/initialization sequence are:
	a) wait for SLIPORT_STAUS RDY bit to be set
	b) set the SLIPORT_CONTROL IP bit
	c) repeat step "a"

The code needed for this sequence is already covered by the be_func_init()
routine (with minor modifications.) So, get rid of the
lancer_test_and_set_rdy_state() and lancer_provisioning_error() routines
that unnecessarily duplicate this code. Also fixed the error recovery
function to take care of these changes

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:32 -05:00
Kalesh AP d0e1b319bb be2net: refactor error detect/recovery function
Currently when an error is detected, the queue resources are being cleaned up
in the recovery routine. The resources are better cleaned up in the error
detection routine itself (similar to EEH code.)
So, this patch re-factors error processing logic to follow the following sequence:
	- check if there is an error in adapter
	- if error,
		- cleanup resources
		- attempt recovery

The patch renames lancer_recover_func() to be_err_recover() as this
routine will be used in the future for error recovery on Skyhawk too.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:32 -05:00
Sathya Perla eb7dd46c63 be2net: use a wrapper to schedule and cancel error detection task
Also rename func_recovery_work/task to err_detection_work/task as error
detection is the primary goal of this task while recovery is not guaranteed.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:31 -05:00
Sathya Perla ca3de6b29d be2net: refactor function initalization sequence into be_func_init()
Function initialization sequence is executed in be_probe(), be_resume
and be_eeh_resume(). Move this code to a new routine called be_func_init()
to prevent code duplication.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:31 -05:00
Sathya Perla 6b085ba927 be2net: get rid of be_get_initial_config() call from be_probe()
Most of the code to fetch the adapter state is in be_setup()->be_get_config().
So, move the code from be_get_initial_config() to be_get_config().

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:31 -05:00
Sathya Perla 78fad34eb8 be2net: move adapter fields alloc/free code to new routines
The members of be_adapter struct were being allocated in two separate
routines -- be_ctrl_init() and be_stats_init(). Also, some other members
were allocated elsewhere. This patch moves the alloc/free code into
be_drv_init/cleanup() routines. The be_pci_map_bars() routine that was
called from be_ctrl_init() is now called directly from be_probe().
The new routine be_drv_init() will now be the place-holder for allocating
memory for any new be_adapter{} members in the future.
Some routines needed to be moved to provide forward definitions for their
calls.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 15:08:31 -05:00
Eyal Shapira 929e6edea5 iwlwifi: mvm: rs: better match tx response rate to the LQ table
Currently rs uses the info in mac80211 tx status which is
a translation of the actual rate coming up from the FW in
the tx response. This is matched up against the LQ table first
rate to make sure this tx frame used the current LQ table.
Instead of using the translated mac80211 info it's easier and
cleaner to just pass the actual tx response rate in the driver
private data and use that for matching.
This becomes even more important once the FW begins to
decide on its own whether to use STBC/BFER/SISO.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-02-23 22:08:07 +02:00
Rasesh Mody 3f307c3d70 bna: Update the Driver and Firmware Version
This patch updates the BNA driver version to 3.2.25.1 and the firmware version
to 3.2.5.1

Signed-off-by: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-21 22:05:23 -05:00
Rasesh Mody 2732ba561e bna: QLogic BR-series Adapters Driver Rebranding
Re-brand the BNA driver to QLogic.

Signed-off-by: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-21 22:05:22 -05:00
David L Stevens bb39b7433d sunvnet: failed trigger should not cause BUG_ON()
An error return from __vnet_tx_trigger() sets the TX descriptor to
VIO_DESC_FREE while leaving port->tx_bufs[txi].skb set. This leads
to a BUG_ON() the next time this descriptor is used.

This patch frees the pending skb when getting a trigger error to
match the VIO_DESC_FREE state.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 17:44:24 -05:00
Mahesh Bandewar 950ddcb1c1 bonding: simple code refactor
Remove duplicate code.

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 17:43:29 -05:00
Arun Chandran a50dad355a net: macb: Add big endian CPU support
This patch converts all __raw_readl and __raw_writel function calls
to their corresponding readl_relaxed and writel_relaxed variants.

It also tells the driver to set ahb_endian_swp_mgmt_en bit in dma_cfg
when the CPU is configured in big endian mode.

Signed-off-by: Arun Chandran <achandran@mvista.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 15:51:31 -05:00
Rasesh Mody 85fe7cd21f bnx2-cnic: Driver Version Update
This patch updates BNX2 driver version to 2.2.6 and CNIC driver version
to 2.5.21.

Signed-off-by: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 15:46:49 -05:00
Rasesh Mody 0021850d04 bnx2: Fix for Chip Initialization
Do not enable filter SORT MODE in chip init routine. This patch addresses an
issue where BCM5716 sporadically drops packets when changing multicast list.

Signed-off-by: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 15:46:49 -05:00
Rasesh Mody 2e0bf125ac bnx2-cnic: Driver Rebranding Changes
This patch provides additional changes as a part of BNX2 and CNIC driver
re-branding effort.

Signed-off-by: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 15:46:49 -05:00
Aleksander Morgado 64bea46e3f hso: always read interface number from the current altsetting
Always read bInterfaceNumber from the current altsetting, not from the first one
available in the altsetting array. This is coming from code review, not related
to any specific bug.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 15:21:31 -05:00
Sriharsha Basavapatna cf5671e699 be2net: Add a few inline functions to test TXQ conditions
- Check qfull condition
- Check qwake condition
- Check pkts pending completion

Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 14:06:57 -05:00
Sriharsha Basavapatna 152ffe5bb7 be2net: Minor code cleanup in tx completion process
- To avoid multiple accesses to CQE, extract compl_status and end_idx from
  be_tx_compl_get().

Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 14:06:57 -05:00
Sriharsha Basavapatna 79a0d7d8e0 be2net: Refactor be_xmit_enqueue() routine
- Reduce code duplication by moving WRB-frags setup into a function.
- Do not setup WRB-header before frags are setup, which is unncessary if
  there's errors while setting up frags. We should only grab an entry for
  the header, setup the frags and if everything is fine setup the header.
- The error cleanup can be moved into a small function.

Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 14:06:57 -05:00
Sriharsha Basavapatna 804abcdbdb be2net: Refactor wrb_fill_hdr() routine
The WRB header is setup by wrb_fill_hdr() routine. This routine currently
gets some of the WRB params as args and figures out rest of the WRB params
by looking at various fields in skb (like gso, checksum, vlan-tag etc).
All these params could instead be retrieved from the skb into a structure
and passed to this routine. This separates wrb_fill_hdr() to only provide
chip-specific code to fill the WRB. This also makes it simple to support
chips with different WRB formats.

Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20 14:06:57 -05:00
Andrew Lunn 4c732668f9 net: dsa: mv88e6171: Enable access to phys via internal mdio bus
When the device is configured to use single chip addressing mode, the
phy devices of the port are not accessible on the host MDIO
bus. Instead the switch internal MDIO bus must be used. For this to
work, the phy polling unit must be enabled.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19 15:52:25 -05:00
Andrew Lunn f30446839b net: dsa: mv88e6352: Refactor shareable code
The mv88e6352 allows access to the port phys via an internal mdio bus
which is accessed using registers in the GLOBAL 2 range. The mv88e6171
and probably other devices use the same mechanism. Move this code into
the shared mv88e6xxx.c library.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19 15:52:25 -05:00
Vince Bridgers ea8860eb50 net: eth: altera: Change reset_mac failure message masks from err to dbg
This debug output is not really an error message since mac reset can fail
if the phy clocks are gated, specifically when the phy has been placed in
a powered down or isolation mode. The netdev output masks were changed from
err to dbg, and comments added in the code.

Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19 15:23:42 -05:00
Vince Bridgers a923fc730f net: eth: altera: Change access ports to mdio for all xMII applications
Change use of Altera TSE's MDIO access from phy 0 registers to phy 1
registers. This allows support for GMII, MII, RGMII, and SGMII
designs where the external PHY is always accesible through
Altera TSE's MDIO phy 1 registers and Altera's PCS is accessible
through MDIO phy 0 registers for SGMII applications.

Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Tested-by: Kai Lin Ng <kailng@altera.com>
Tested-by: Dalon Westergreen <dwesterg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19 15:23:42 -05:00
hayeswang efb3dd88f4 r8152: support setting rx coalesce
Support setting the rx coalesce. Then someone could change the rx
agg timeout value through ethtool.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19 15:08:43 -05:00
hayeswang 396e2e235a r8152: change rx early size when the mtu is changed
The rx early size is calculated with the mtu, so it has to be
re-calculated when the mtu is changed.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19 15:08:43 -05:00
hayeswang 464ec10a2d r8152: separate USB_RX_EARLY_AGG
Separate USB_RX_EARLY_AGG into USB_RX_EARLY_TIMEOUT and USB_RX_EARLY_SIZE.

Replace r8153_set_rx_agg() with r8153_set_rx_early_timeout() and
r8153_set_rx_early_size().

Set the default timeout value according to the USB speed.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19 15:08:43 -05:00
Linus Torvalds f5af19d10d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking updates from David Miller:

 1) Missing netlink attribute validation in nft_lookup, from Patrick
    McHardy.

 2) Restrict ipv6 partial checksum handling to UDP, since that's the
    only case it works for.  From Vlad Yasevich.

 3) Clear out silly device table sentinal macros used by SSB and BCMA
    drivers.  From Joe Perches.

 4) Make sure the remote checksum code never creates a situation where
    the remote checksum is applied yet the tunneling metadata describing
    the remote checksum transformation is still present.  Otherwise an
    external entity might see this and apply the checksum again.  From
    Tom Herbert.

 5) Use msecs_to_jiffies() where applicable, from Nicholas Mc Guire.

 6) Don't explicitly initialize timer struct fields, use setup_timer()
    and mod_timer() instead.  From Vaishali Thakkar.

 7) Don't invoke tg3_halt() without the tp->lock held, from Jun'ichi
    Nomura.

 8) Missing __percpu annotation in ipvlan driver, from Eric Dumazet.

 9) Don't potentially perform skb_get() on shared skbs, also from Eric
    Dumazet.

10) Fix COW'ing of metrics for non-DST_HOST routes in ipv6, from Martin
    KaFai Lau.

11) Fix merge resolution error between the iov_iter changes in vhost and
    some bug fixes that occurred at the same time.  From Jason Wang.

12) If rtnl_configure_link() fails we have to perform a call to
    ->dellink() before unregistering the device.  From WANG Cong.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (39 commits)
  net: dsa: Set valid phy interface type
  rtnetlink: call ->dellink on failure when ->newlink exists
  com20020-pci: add support for eae single card
  vhost_net: fix wrong iter offset when setting number of buffers
  net: spelling fixes
  net/core: Fix warning while make xmldocs caused by dev.c
  net: phy: micrel: disable NAND-tree for KSZ8021, KSZ8031, KSZ8051, KSZ8081
  ipv6: fix ipv6_cow_metrics for non DST_HOST case
  openvswitch: Fix key serialization.
  r8152: restore hw settings
  hso: fix rx parsing logic when skb allocation fails
  tcp: make sure skb is not shared before using skb_get()
  bridge: netfilter: Move sysctl-specific error code inside #ifdef
  ipv6: fix possible deadlock in ip6_fl_purge / ip6_fl_gc
  ipvlan: add a missing __percpu pcpu_stats
  tg3: Hold tp->lock before calling tg3_halt() from tg3_init_one()
  bgmac: fix device initialization on Northstar SoCs (condition typo)
  qlcnic: Delete existing multicast MAC list before adding new
  net/mlx5_core: Fix configuration of log_uar_page_sz
  sunvnet: don't change gso data on clones
  ...
2015-02-17 17:41:19 -08:00
Linus Torvalds c6b1de1b64 Merge branch 'debugfs_automount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull debugfs patches from Al Viro:
 "debugfs patches, mostly to make it possible for something like tracefs
  to be transparently automounted on given directory in debugfs.

  New primitive in there is debugfs_create_automount(name, parent, func,
  arg), which creates a directory and makes its ->d_automount() return
  func(arg).  Another missing primitive was debugfs_create_file_size() -
  open-coded in quite a few places.  Dave's patch adds it and converts
  the open-code instances to calling it"

* 'debugfs_automount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  debugfs: Provide a file creation function that also takes an initial size
  new primitive: debugfs_create_automount()
  debugfs: split end_creating() into success and failure cases
  debugfs: take mode-dependent parts of debugfs_get_inode() into callers
  fold debugfs_mknod() into callers
  fold debugfs_create() into caller
  fold debugfs_mkdir() into caller
  debugfs_mknod(): get rid useless arguments
  fold debugfs_link() into caller
  debugfs: kill __create_file()
  debugfs: split the beginning and the end of __create_file() off
  debugfs_{mkdir,create,link}(): get rid of redundant argument
2015-02-17 15:18:19 -08:00
Linus Torvalds 50652963ea Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc VFS updates from Al Viro:
 "This cycle a lot of stuff sits on topical branches, so I'll be sending
  more or less one pull request per branch.

  This is the first pile; more to follow in a few.  In this one are
  several misc commits from early in the cycle (before I went for
  separate branches), plus the rework of mntput/dput ordering on umount,
  switching to use of fs_pin instead of convoluted games in
  namespace_unlock()"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  switch the IO-triggering parts of umount to fs_pin
  new fs_pin killing logics
  allow attaching fs_pin to a group not associated with some superblock
  get rid of the second argument of acct_kill()
  take count and rcu_head out of fs_pin
  dcache: let the dentry count go down to zero without taking d_lock
  pull bumping refcount into ->kill()
  kill pin_put()
  mode_t whack-a-mole: chelsio
  file->f_path.dentry is pinned down for as long as the file is open...
  get rid of lustre_dump_dentry()
  gut proc_register() a bit
  kill d_validate()
  ncpfs: get rid of d_validate() nonsense
  selinuxfs: don't open-code d_genocide()
2015-02-17 14:56:45 -08:00
David Howells e59b4e9187 debugfs: Provide a file creation function that also takes an initial size
Provide a file creation function that also takes an initial size so that the
caller doesn't have to set i_size, thus meaning that we don't have to call
deal with ->d_inode in the callers.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-17 12:21:51 -05:00
Michael Grzeschik d95e2fe0ff com20020-pci: add support for eae single card
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-15 08:21:34 -08:00
Michal Kazior 139e170da9 ath10k: add TxBF support
If firmware advertises support for TxBF then the
driver has to instruct the firmware accordingly
during runtime. Without this patch connecting to
an AP with beamformer support would yield abysmal
Rx performance.

This has been tested with wmi-tlv and qca6174
while acting as a STA beamformee only.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:42 +02:00
Michal Kazior 7777d8c7ef ath10k: implement fw stats for wmi-tlv
This processes and pushes fw stats to the debug
module (if enabled).

Changing the generic ath10k_wmi_requests_stats()
call to use more stat bits has no effect on older
firmware binaries.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:41 +02:00
Michal Kazior eed55411d3 ath10k: add more wmi fw stat defines
New qca6174 wmi-tlv firmware revisions support
more stat event bits.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:41 +02:00
Michal Kazior de23d3efb0 ath10k: change request stats command prototype
The expected parameter is not a single value but a
mask of values.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:41 +02:00
Michal Kazior 7b6b153a7a ath10k: add vdev stats processing
New qca6174 wmi-tlv firmware supports vdev stats.
This patch adds support for it in the debug
frontend.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:40 +02:00
Michal Kazior 2c512059bb ath10k: defer AP self-peer removal wait
Some firmware revisions don't notify host about
self-bss-peer removal until after associated vdev
is deleted. This has been observed with qca6174
WLAN.RM.2.0-00073 firmware.

This patch fixes AP teardown slowdowns and
prevents delays and warnings:

 ath10k_pci 0000:00:05.0: failed to remove peer for AP vdev 0: -110
 ath10k_pci 0000:00:05.0: removing stale peer xx:xx:xx:xx:xx:xx from vdev_id 0
 ath10k_pci 0000:00:05.0: peer-unmap-event: unknown peer id 24
 ath10k_pci 0000:00:05.0: peer-unmap-event: unknown peer id 8

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:40 +02:00
Ben Greear 99fc6f3adc ath10k: fix CE_DESC_FLAGS_META_DATA_LSB definition
The value was off by one.  The error probably has no negative
affect on any upstream firmware, but should be fixed anyway
in case it comes into use in the future.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:39 +02:00
Ben Greear 3eafdfd65b ath10k: fix spelling in htt code comment
Fix spelling error.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:39 +02:00
Ben Greear 60028a819d ath10k: fix spelling mistakes and add details to mac logging
A bit of general cleanup to make debug messages more useful.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:39 +02:00
Ben Greear 2f9eec0b71 ath10k: scan should handle scan-start-failed event properly
In case firmware fails to start the scan, then complete
the start condition and clean up so that driver does not
block on timeout.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:38 +02:00
Sylvain Rochet 2b0ba96cea net: phy: micrel: disable NAND-tree for KSZ8021, KSZ8031, KSZ8051, KSZ8081
NAND-tree is used to check wiring between MAC and PHY using NAND gates
on the PHY side, hence the name.

NAND-tree initial status is latched at reset by probing the IRQ pin.
However some devices are sharing the PHY IRQ pin with other peripherals
such as Atmel SAMA5D[34]x-EK boards when using the optional TM7000
display module, therefore they are switching the PHY in NAND-tree test
mode depending on the current IRQ line status at reset.

This patch ensure PHY is not in NAND-tree test mode for all Micrel PHYs
using IRQ line as a NAND-tree toggle mode at reset.

Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-14 20:30:55 -08:00
hayeswang 65bab84c79 r8152: restore hw settings
There is a capability which let the hw could change the settings
automatically when the power change to ON. However, the USB reset
would reset the settings to the hw default, so the driver has to
restore the relative settings. Otherwise, it would influence the
functions of the hw, and the compatibility for the USB hub and
USB host controller.

The relative settings are as following.
 - set the power down scale to 96.
 - enable the power saving function of USB 2.0.
 - disable the ALDPS of ECM mode.
 - set burst mode depending on the burst size.
 - enable the flow control of endpoint full.
 - set fifo empty boundary to 32448 bytes.
 - enable the function of exiting LPM when Rx OK occurs.
 - set the connect timer to 1.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-14 20:15:45 -08:00
Andrew Morton 0f989f749b MODULE_DEVICE_TABLE: fix some callsites
The patch "module: fix types of device tables aliases" newly requires that
invocations of

MODULE_DEVICE_TABLE(type, name);

come *after* the definition of `name'.  That is reasonable, but some
drivers weren't doing this.  Fix them.

Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: David Miller <davem@davemloft.net>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-13 21:21:40 -08:00
Tejun Heo 898600380c wireless: use %*pb[l] to print bitmaps including cpumasks and nodemasks
printk and friends can now format bitmaps using '%*pb[l]'.  cpumask
and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
respectively which can be used to generate the two printf arguments
necessary to format the specified cpu/nodemask.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-13 21:21:38 -08:00
Tejun Heo 839b268033 tile: use %*pb[l] to print bitmaps including cpumasks and nodemasks
printk and friends can now format bitmaps using '%*pb[l]'.  cpumask
and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
respectively which can be used to generate the two printf arguments
necessary to format the specified cpu/nodemask.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-13 21:21:37 -08:00
Aleksander Morgado 0416605548 hso: fix rx parsing logic when skb allocation fails
If skb allocation fails once the IP header has been received, the rx state is
being set to WAIT_SYNC. The logic, though, shouldn't directly return, as the
buffer may contain a full packet, and therefore the WAIT_SYNC state needs to be
processed (resetting state to WAIT_IP, clearing rx_buf_size and re-initializing
rx_buf_missing).

So, just let the while loop continue so that in the next iteration the WAIT_SYNC
state cleanly stops the loop. The WAIT_SYNC processing will be done just after
that, only if the end of packet is flagged.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-13 07:17:05 -08:00
Eric Dumazet 6aa6395ff3 ipvlan: add a missing __percpu pcpu_stats
Cosmetic patch to add __percpu qualifier to pcpu_stats

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 20:03:23 -08:00
Jun'ichi Nomura \(NEC\) d0af71a357 tg3: Hold tp->lock before calling tg3_halt() from tg3_init_one()
tg3_init_one() calls tg3_halt() without tp->lock despite its assumption
and causes deadlock.
If lockdep is enabled, a warning like this shows up before the stall:

  [ BUG: bad unlock balance detected! ]
  3.19.0test #3 Tainted: G            E
  -------------------------------------
  insmod/369 is trying to release lock (&(&tp->lock)->rlock) at:
  [<ffffffffa02d5a1d>] tg3_chip_reset+0x14d/0x780 [tg3]
  but there are no more locks to release!

tg3_init_one() doesn't call tg3_halt() under normal situation but
during kexec kdump I hit this problem.

Fixes: 932f19de ("tg3: Release tp->lock before invoking synchronize_irq()")
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:51:08 -08:00
David S. Miller b3b482c6e2 rtlwifi:
* remove superfluous warning message which is not needed anymore
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Merge tag 'wireless-drivers-for-davem-2015-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

rtlwifi:

* remove superfluous warning message which is not needed anymore

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:49:44 -08:00
Rafał Miłecki 21697336d4 bgmac: fix device initialization on Northstar SoCs (condition typo)
On Northstar (Broadcom's ARM architecture) we need to manually enable
all cores. Code for that is already in place, but the condition for it
was wrong.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:44:21 -08:00
Shahed Shaikh fe79fabbed qlcnic: Delete existing multicast MAC list before adding new
Driver keeps adding multicast addresses without deleting removed MACs and
worrying about adapters filter limit. This results into actual count of programmed
multicast addresses get accumulated over the time and overruns the adapter's
filter limit without putting device in ACCEPT_ALL_MULTI mode. This causes
newly added multicast traffic to fail after the sequence of addition - deletion
in certain pattern.

This issue is seen only when netdev's mcast list count is less than adapters
mcast filter limit.

e.g. If adapters multicast filter limit is 38 per function
     then following sequence would result in multicast traffic failure for
     newly added MACs.
     - add less than 38 multicast MACs
     - remove previously added multicast MACs
     - add new multicast MACs (less than 38)

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:43:22 -08:00
Eli Cohen de61390cb3 net/mlx5_core: Fix configuration of log_uar_page_sz
The current code failed to configure the page size for architectures with page
size different than 4K - PPC for example.

Signed-off-by: Carol L Soto <clsoto@us.ibm.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:42:23 -08:00
David L Stevens f7d70f7481 sunvnet: don't change gso data on clones
This patch unclones an skb for the case where the sunvnet driver needs to
change the segmentation size so that it doesn't interfere with TCP SACK's
use of them.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:41:40 -08:00
Vaishali Thakkar 1d6c4cca41 drivers/net: Use setup_timer and mod_timer
This patch introduces the use of functions setup_timer
and mod_timer.

This is done using Coccinelle and semantic patch used
for this as follows:

// <smpl>
@@
expression x,y,z,a,b;
@@

-init_timer (&x);
+setup_timer (&x, y, z);
+mod_timer (&a, b);
-x.function = y;
-x.data = z;
-x.expires = b;
-add_timer(&a);

// </smpl>

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:40:12 -08:00
Geert Uytterhoeven 163cff31de drivers: net: xgene: Make xgene_enet_of_match depend on CONFIG_OF
If CONFIG_NET_XGENE=y but CONFIG_OF=n:

drivers/net/ethernet/apm/xgene/xgene_enet_main.c:1033: warning: ‘xgene_enet_of_match’ defined but not used

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:39:08 -08:00
Nicholas Mc Guire bc2f3873f7 et131x: use msecs_to_jiffies for conversions
This is only an API consolidation and should make things more readable.
Converting milliseconds to jiffies by "val * HZ / 1000" is technically
OK but msecs_to_jiffies(val) is the cleaner solution and handles all
corner cases correctly. This is a minor API cleanup only.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Acked-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 19:37:43 -08:00
Tom Herbert 0ace2ca89c vxlan: Use checksum partial with remote checksum offload
Change remote checksum handling to set checksum partial as default
behavior. Added an iflink parameter to configure not using
checksum partial (calling csum_partial to update checksum).

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 15:12:13 -08:00
Tom Herbert 15e2396d4e net: Infrastructure for CHECKSUM_PARTIAL with remote checsum offload
This patch adds infrastructure so that remote checksum offload can
set CHECKSUM_PARTIAL instead of calling csum_partial and writing
the modfied checksum field.

Add skb_remcsum_adjust_partial function to set an skb for using
CHECKSUM_PARTIAL with remote checksum offload.  Changed
skb_remcsum_process and skb_gro_remcsum_process to take a boolean
argument to indicate if checksum partial can be set or the
checksum needs to be modified using the normal algorithm.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 15:12:12 -08:00
Tom Herbert 26c4f7da3e net: Fix remcsum in GRO path to not change packet
Remote checksum offload processing is currently the same for both
the GRO and non-GRO path. When the remote checksum offload option
is encountered, the checksum field referred to is modified in
the packet. So in the GRO case, the packet is modified in the
GRO path and then the operation is skipped when the packet goes
through the normal path based on skb->remcsum_offload. There is
a problem in that the packet may be modified in the GRO path, but
then forwarded off host still containing the remote checksum option.
A remote host will again perform RCO but now the checksum verification
will fail since GRO RCO already modified the checksum.

To fix this, we ensure that GRO restores a packet to it's original
state before returning. In this model, when GRO processes a remote
checksum option it still changes the checksum per the algorithm
but on return from lower layer processing the checksum is restored
to its original value.

In this patch we add define gro_remcsum structure which is passed
to skb_gro_remcsum_process to save offset and delta for the checksum
being changed. After lower layer processing, skb_gro_remcsum_cleanup
is called to restore the checksum before returning from GRO.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 15:12:09 -08:00
Joe Perches 673e2baaa6 treewide: Remove unnecessary SSB_DEVTABLE_END macro
Use the normal {} instead of a macro to terminate an array.

Remove the macro too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 14:38:29 -08:00
Joe Perches f7219b527b treewide: Remove unnecessary BCMA_CORETABLE_END macro
Use the normal {} instead of a macro to terminate an array.

Remove the macro too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-11 14:38:28 -08:00
Linus Torvalds c5ce28df0e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) More iov_iter conversion work from Al Viro.

    [ The "crypto: switch af_alg_make_sg() to iov_iter" commit was
      wrong, and this pull actually adds an extra commit on top of the
      branch I'm pulling to fix that up, so that the pre-merge state is
      ok.   - Linus ]

 2) Various optimizations to the ipv4 forwarding information base trie
    lookup implementation.  From Alexander Duyck.

 3) Remove sock_iocb altogether, from CHristoph Hellwig.

 4) Allow congestion control algorithm selection via routing metrics.
    From Daniel Borkmann.

 5) Make ipv4 uncached route list per-cpu, from Eric Dumazet.

 6) Handle rfs hash collisions more gracefully, also from Eric Dumazet.

 7) Add xmit_more support to r8169, e1000, and e1000e drivers.  From
    Florian Westphal.

 8) Transparent Ethernet Bridging support for GRO, from Jesse Gross.

 9) Add BPF packet actions to packet scheduler, from Jiri Pirko.

10) Add support for uniqu flow IDs to openvswitch, from Joe Stringer.

11) New NetCP ethernet driver, from Muralidharan Karicheri and Wingman
    Kwok.

12) More sanely handle out-of-window dupacks, which can result in
    serious ACK storms.  From Neal Cardwell.

13) Various rhashtable bug fixes and enhancements, from Herbert Xu,
    Patrick McHardy, and Thomas Graf.

14) Support xmit_more in be2net, from Sathya Perla.

15) Group Policy extensions for vxlan, from Thomas Graf.

16) Remove Checksum Offload support for vxlan, from Tom Herbert.

17) Like ipv4, support lockless transmit over ipv6 UDP sockets.  From
    Vlad Yasevich.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1494+1 commits)
  crypto: fix af_alg_make_sg() conversion to iov_iter
  ipv4: Namespecify TCP PMTU mechanism
  i40e: Fix for stats init function call in Rx setup
  tcp: don't include Fast Open option in SYN-ACK on pure SYN-data
  openvswitch: Only set TUNNEL_VXLAN_OPT if VXLAN-GBP metadata is set
  ipv6: Make __ipv6_select_ident static
  ipv6: Fix fragment id assignment on LE arches.
  bridge: Fix inability to add non-vlan fdb entry
  net: Mellanox: Delete unnecessary checks before the function call "vunmap"
  cxgb4: Add support in cxgb4 to get expansion rom version via ethtool
  ethtool: rename reserved1 memeber in ethtool_drvinfo for expansion ROM version
  net: dsa: Remove redundant phy_attach()
  IB/mlx4: Reset flow support for IB kernel ULPs
  IB/mlx4: Always use the correct port for mirrored multicast attachments
  net/bonding: Fix potential bad memory access during bonding events
  tipc: remove tipc_snprintf
  tipc: nl compat add noop and remove legacy nl framework
  tipc: convert legacy nl stats show to nl compat
  tipc: convert legacy nl net id get to nl compat
  tipc: convert legacy nl net id set to nl compat
  ...
2015-02-10 20:01:30 -08:00
Linus Torvalds c08f846793 PCI changes for the v3.20 merge window:
Enumeration
     - Move domain assignment from arm64 to generic code (Lorenzo Pieralisi)
     - ARM: Remove artificial dependency on pci_sys_data domain (Lorenzo Pieralisi)
     - ARM: Move to generic PCI domains (Lorenzo Pieralisi)
     - Generate uppercase hex for modalias var in uevent (Ricardo Ribalda Delgado)
     - Add and use generic config accessors on ARM, PowerPC (Rob Herring)
 
   Resource management
     - Free resources on failure in of_pci_get_host_bridge_resources() (Lorenzo Pieralisi)
     - Fix infinite loop with ROM image of size 0 (Michel Dänzer)
 
   PCI device hotplug
     - Handle surprise add even if surprise removal isn't supported (Bjorn Helgaas)
 
   Virtualization
     - Mark AMD/ATI VGA devices that don't reset on D3hot->D0 transition (Alex Williamson)
     - Add DMA alias quirk for Adaptec 3405 (Alex Williamson)
     - Add Wellsburg (X99) to Intel PCH root port ACS quirk (Alex Williamson)
     - Add ACS quirk for Emulex NICs (Vasundhara Volam)
 
   MSI
     - Fail MSI-X mappings if there's no space assigned to MSI-X BAR (Yijing Wang)
 
   Freescale Layerscape host bridge driver
     - Fix platform_no_drv_owner.cocci warnings (Julia Lawall)
 
   NVIDIA Tegra host bridge driver
     - Remove unnecessary tegra_pcie_fixup_bridge() (Lucas Stach)
 
   Renesas R-Car host bridge driver
     - Fix error handling of irq_of_parse_and_map() (Dmitry Torokhov)
 
   TI Keystone host bridge driver
     - Fix error handling of irq_of_parse_and_map() (Dmitry Torokhov)
     - Fix misspelling of current function in debug output (Julia Lawall)
 
   Xilinx AXI host bridge driver
     - Fix harmless format string warning (Arnd Bergmann)
 
   Miscellaneous
     - Use standard parsing functions for ASPM sysfs setters (Chris J Arges)
     - Add pci_device_to_OF_node() stub for !CONFIG_OF (Kevin Hao)
     - Delete unnecessary NULL pointer checks (Markus Elfring)
     - Add and use defines for PCIe Max_Read_Request_Size (Rafał Miłecki)
     - Include clk.h instead of clk-private.h (Stephen Boyd)
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Merge tag 'pci-v3.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI changes from Bjorn Helgaas:
 "Enumeration
    - Move domain assignment from arm64 to generic code (Lorenzo Pieralisi)
    - ARM: Remove artificial dependency on pci_sys_data domain (Lorenzo Pieralisi)
    - ARM: Move to generic PCI domains (Lorenzo Pieralisi)
    - Generate uppercase hex for modalias var in uevent (Ricardo Ribalda Delgado)
    - Add and use generic config accessors on ARM, PowerPC (Rob Herring)

  Resource management
    - Free resources on failure in of_pci_get_host_bridge_resources() (Lorenzo Pieralisi)
    - Fix infinite loop with ROM image of size 0 (Michel Dänzer)

  PCI device hotplug
    - Handle surprise add even if surprise removal isn't supported (Bjorn Helgaas)

  Virtualization
    - Mark AMD/ATI VGA devices that don't reset on D3hot->D0 transition (Alex Williamson)
    - Add DMA alias quirk for Adaptec 3405 (Alex Williamson)
    - Add Wellsburg (X99) to Intel PCH root port ACS quirk (Alex Williamson)
    - Add ACS quirk for Emulex NICs (Vasundhara Volam)

  MSI
    - Fail MSI-X mappings if there's no space assigned to MSI-X BAR (Yijing Wang)

  Freescale Layerscape host bridge driver
    - Fix platform_no_drv_owner.cocci warnings (Julia Lawall)

  NVIDIA Tegra host bridge driver
    - Remove unnecessary tegra_pcie_fixup_bridge() (Lucas Stach)

  Renesas R-Car host bridge driver
    - Fix error handling of irq_of_parse_and_map() (Dmitry Torokhov)

  TI Keystone host bridge driver
    - Fix error handling of irq_of_parse_and_map() (Dmitry Torokhov)
    - Fix misspelling of current function in debug output (Julia Lawall)

  Xilinx AXI host bridge driver
    - Fix harmless format string warning (Arnd Bergmann)

  Miscellaneous
    - Use standard parsing functions for ASPM sysfs setters (Chris J Arges)
    - Add pci_device_to_OF_node() stub for !CONFIG_OF (Kevin Hao)
    - Delete unnecessary NULL pointer checks (Markus Elfring)
    - Add and use defines for PCIe Max_Read_Request_Size (Rafał Miłecki)
    - Include clk.h instead of clk-private.h (Stephen Boyd)"

* tag 'pci-v3.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (48 commits)
  PCI: Add pci_device_to_OF_node() stub for !CONFIG_OF
  PCI: xilinx: Convert to use generic config accessors
  PCI: xgene: Convert to use generic config accessors
  PCI: tegra: Convert to use generic config accessors
  PCI: rcar: Convert to use generic config accessors
  PCI: generic: Convert to use generic config accessors
  powerpc/powermac: Convert PCI to use generic config accessors
  powerpc/fsl_pci: Convert PCI to use generic config accessors
  ARM: ks8695: Convert PCI to use generic config accessors
  ARM: sa1100: Convert PCI to use generic config accessors
  ARM: integrator: Convert PCI to use generic config accessors
  PCI: versatile: Add DT-based ARM Versatile PB PCIe host driver
  ARM: dts: versatile: add PCI controller binding
  of/pci: Free resources on failure in of_pci_get_host_bridge_resources()
  PCI: versatile: Add DT docs for ARM Versatile PB PCIe driver
  PCI: Fail MSI-X mappings if there's no space assigned to MSI-X BAR
  r8169: use PCI define for Max_Read_Request_Size
  [SCSI] esas2r: use PCI define for Max_Read_Request_Size
  tile: use PCI define for Max_Read_Request_Size
  rapidio/tsi721: use PCI define for Max_Read_Request_Size
  ...
2015-02-10 14:31:28 -08:00
Linus Torvalds bdccc4edeb xen: features and fixes for 3.20-rc0
- Reworked handling for foreign (grant mapped) pages to simplify the
   code, enable a number of additional use cases and fix a number of
   long-standing bugs.
 - Prefer the TSC over the Xen PV clock when dom0 (and the TSC is
   stable).
 - Assorted other cleanup and minor bug fixes.
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Merge tag 'stable/for-linus-3.20-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen features and fixes from David Vrabel:

 - Reworked handling for foreign (grant mapped) pages to simplify the
   code, enable a number of additional use cases and fix a number of
   long-standing bugs.

 - Prefer the TSC over the Xen PV clock when dom0 (and the TSC is
   stable).

 - Assorted other cleanup and minor bug fixes.

* tag 'stable/for-linus-3.20-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (25 commits)
  xen/manage: Fix USB interaction issues when resuming
  xenbus: Add proper handling of XS_ERROR from Xenbus for transactions.
  xen/gntdev: provide find_special_page VMA operation
  xen/gntdev: mark userspace PTEs as special on x86 PV guests
  xen-blkback: safely unmap grants in case they are still in use
  xen/gntdev: safely unmap grants in case they are still in use
  xen/gntdev: convert priv->lock to a mutex
  xen/grant-table: add a mechanism to safely unmap pages that are in use
  xen-netback: use foreign page information from the pages themselves
  xen: mark grant mapped pages as foreign
  xen/grant-table: add helpers for allocating pages
  x86/xen: require ballooned pages for grant maps
  xen: remove scratch frames for ballooned pages and m2p override
  xen/grant-table: pre-populate kernel unmap ops for xen_gnttab_unmap_refs()
  mm: add 'foreign' alias for the 'pinned' page flag
  mm: provide a find_special_page vma operation
  x86/xen: cleanup arch/x86/xen/mmu.c
  x86/xen: add some __init annotations in arch/x86/xen/mmu.c
  x86/xen: add some __init and static annotations in arch/x86/xen/setup.c
  x86/xen: use correct types for addresses in arch/x86/xen/setup.c
  ...
2015-02-10 13:56:56 -08:00
Linus Torvalds ab0475df5c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
 "Summary:

  - switch to asm-generic/futex.h

  - various cleanups

  - defconfig updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k/defconfig: Enable Ethernet bridging
  m68k/defconfig: Enable Atari EtherNAT and EtherNEC Ethernet support
  m68k/defconfig: Enable automounting of devtmpfs at /dev
  m68k/defconfig: Enable early printk support
  m68k/defconfig: Enable test modules
  m68k/defconfig: Refresh defconfigs for v3.16-rc1--v3.19-rc2
  m68k/atari: Remove obsolete IRQ_TYPE_*
  sound: dmasound_atari: Remove obsolete IRQ_TYPE_SLOW
  video: atafb: Remove obsolete IRQ_TYPE_PRIO
  parport: parport_atari: Remove obsolete IRQ_TYPE_SLOW
  net: atarilance: Remove obsolete IRQ_TYPE_PRIO
  m68k/atari: Remove obsolete keyboard_tasklet scheduling
  m68k/mac: Fix scsi_type for Mac LC and similar models
  m68k: Switch to asm-generic/futex.h
  m68k/mvme147: config.c - Remove unused functions
  m68k/atari: atakeyb.c - Remove some unused functions
  m68k/mvme16x: rtc - Don't use module_init in non-modular code
2015-02-10 13:27:24 -08:00
Larry Finger aeb2d2a4c0 rtlwifi: Remove logging statement that is no longer needed
In commit e9538cf4f9 ("rtlwifi: Fix error when accessing unmapped memory
in skb"), a printk was included to indicate that the condition had been
reached. There is now enough evidence from other users that the fix is
working. That logging statement can now be removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V3.18]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-10 16:09:11 +02:00
Carolyn Wyborny f217d6ca4a i40e: Fix for stats init function call in Rx setup
This patch fixes indentation issue and error found in argument
reported by static analysis.  Without this patch, sparse and other
static analysis errors will be found.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 18:45:00 -08:00
David S. Miller 2573beec56 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 14:35:57 -08:00
Linus Torvalds 23e8fe2e16 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 "The main RCU changes in this cycle are:

   - Documentation updates.

   - Miscellaneous fixes.

   - Preemptible-RCU fixes, including fixing an old bug in the
     interaction of RCU priority boosting and CPU hotplug.

   - SRCU updates.

   - RCU CPU stall-warning updates.

   - RCU torture-test updates"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits)
  rcu: Initialize tiny RCU stall-warning timeouts at boot
  rcu: Fix RCU CPU stall detection in tiny implementation
  rcu: Add GP-kthread-starvation checks to CPU stall warnings
  rcu: Make cond_resched_rcu_qs() apply to normal RCU flavors
  rcu: Optionally run grace-period kthreads at real-time priority
  ksoftirqd: Use new cond_resched_rcu_qs() function
  ksoftirqd: Enable IRQs and call cond_resched() before poking RCU
  rcutorture: Add more diagnostics in rcu_barrier() test failure case
  torture: Flag console.log file to prevent holdovers from earlier runs
  torture: Add "-enable-kvm -soundhw pcspk" to qemu command line
  rcutorture: Handle different mpstat versions
  rcutorture: Check from beginning to end of grace period
  rcu: Remove redundant rcu_batches_completed() declaration
  rcutorture: Drop rcu_torture_completed() and friends
  rcu: Provide rcu_batches_completed_sched() for TINY_RCU
  rcutorture: Use unsigned for Reader Batch computations
  rcutorture: Make build-output parsing correctly flag RCU's warnings
  rcu: Make _batches_completed() functions return unsigned long
  rcutorture: Issue warnings on close calls due to Reader Batch blows
  documentation: Fix smp typo in memory-barriers.txt
  ...
2015-02-09 14:28:42 -08:00
David S. Miller 60cd0854de Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-02-09

This series contains updates to i40e and i40evf only.

Rickard Strandqvist removes an unused function for i40e.

John Linville reorders a piece of code so that y_budget does not get used
by the FCoE code before it gets initialized.

Mitch adds a delay after VF reset with a minimum of 10ms to allow the
hardware internal FIFOs to flush.  Bumps up the ARQ descriptors, since
we can easily overrun the PF's admin receive queue.  Added locking around
the VF reset code, since during VF deallocation, we cannot depend on
simply masking the interrupt since this does not lock out the service task,
which can still call the reset routine.  Fix a potential multi-minute
delay on driver unload, VF disable or system shutdown.  When the module
is being unloaded, waiting for the PF to politely handle all of our admin
queue requests might take forever with a lot of VFs enabled, so just
stop everything and request a VF reset.  Also stops the watchdog during
shutdown to prevent a log full of admin queue errors and the occasional
hang when the system is shut down.

Anjali forces Tx descriptor writebacks on ITR by kicking off the SWINT
interrupt since we noticed that there are non-cache-aligned Tx
descriptors waiting in the ring while interrupts are disabled under NAPI.
Enables loopback for the FCoE VSI, so that VSIs can directly talk to each
other without going out on the wire.

Matthew fixes an LED blink issue by making sure to clear the GPIO blink
field, instead of OR'ing against zero if the field is already '1'.

Greg cleans up a function header comment.

Vasu helps biosdevname user tool to differentiate dev_port for PCoE netdev
and PF netdev, by setting different dev_port value for FCoE netdev.

Carolyn adds a call to u64_stats_init to the receive setup in order to
avoid lockdep errors with seqcount on newer kernels.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 14:17:19 -08:00
Markus Elfring 1d966d03a3 net: Mellanox: Delete unnecessary checks before the function call "vunmap"
The vunmap() function performs also input parameter validation.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 14:10:05 -08:00
Hariprasad Shenai ba3f8cd55f cxgb4: Add support in cxgb4 to get expansion rom version via ethtool
Add support to get option/expansion rom version flashed in the adapter via
ethtool getdrvinfo function.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 14:07:54 -08:00
Moni Shoua 92e584fe44 net/bonding: Fix potential bad memory access during bonding events
When queuing work to send the NETDEV_BONDING_INFO netdev event, it's
possible that when the work is executed, the pointer to the slave
becomes invalid. This can happen if between queuing the event and the
execution of the work, the net-device was un-ensvaled and re-enslaved.

Fix that by queuing a work with the data of the slave instead of the
slave structure.

Fixes: 69e6113343 ('net/bonding: Notify state change on slaves')
Reported-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 14:03:53 -08:00
David S. Miller c8ac18f200 Major changes:
iwlwifi:
 
 * more work for new devices (4165 / 8260)
 * cleanups / improvemnts in rate control
 * fixes for TDLS
 * major statistics work from Johannes - more to come
 * improvements for the fw error dump infrastructure
 * usual amount of small fixes here and there (scan, D0i3 etc...)
 * add support for beamforming
 * enable stuck queue detection for iwlmvm
 * a few fixes for EBS scan
 * fixes for various failure paths
 * improvements for TDLS Offchannel
 
 wil6210:
 
 * performance tuning
 * some AP features
 
 brcm80211:
 
 * rework some code in SDIO part of the brcmfmac driver related to
   suspend/resume that were found doing stress testing
 * in PCIe part scheduling of worker thread needed to be relaxed
 * minor fixes and exposing firmware revision information to
   user-space, ie. ethtool.
 
 mwifiex:
 
 * enhancements for change virtual interface handling
 * remove coupling between netdev and FW supported interface
   combination, now conversion from any type of supported interface
   types to any other type is possible
 * DFS support in AP mode
 
 ath9k:
 
 * fix calibration issues on some boards
 * Wake-on-WLAN improvements
 
 ath10k:
 
 * add support for qca6174 hardware
 * enable RX batching to reduce CPU load
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Merge tag 'wireless-drivers-next-for-davem-2015-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Major changes:

iwlwifi:

* more work for new devices (4165 / 8260)
* cleanups / improvemnts in rate control
* fixes for TDLS
* major statistics work from Johannes - more to come
* improvements for the fw error dump infrastructure
* usual amount of small fixes here and there (scan, D0i3 etc...)
* add support for beamforming
* enable stuck queue detection for iwlmvm
* a few fixes for EBS scan
* fixes for various failure paths
* improvements for TDLS Offchannel

wil6210:

* performance tuning
* some AP features

brcm80211:

* rework some code in SDIO part of the brcmfmac driver related to
  suspend/resume that were found doing stress testing
* in PCIe part scheduling of worker thread needed to be relaxed
* minor fixes and exposing firmware revision information to
  user-space, ie. ethtool.

mwifiex:

* enhancements for change virtual interface handling
* remove coupling between netdev and FW supported interface
  combination, now conversion from any type of supported interface
  types to any other type is possible
* DFS support in AP mode

ath9k:

* fix calibration issues on some boards
* Wake-on-WLAN improvements

ath10k:

* add support for qca6174 hardware
* enable RX batching to reduce CPU load

Conflicts:
	drivers/net/wireless/rtlwifi/pci.c

Conflict resolution is to get rid of the 'end' label and keep
the rest.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 12:13:58 -08:00
Carolyn Wyborny 638702bd59 i40e/i40evf: Add call to u64_stats_init to init
This patch adds a call to u64_stats_init to Rx setup.
This done in order to avoid lockdep errors with seqcount on newer kernels.

Change-ID: Ia8ba8f0bcbd1c0e926f97d70aeee4ce4fd055e93
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-09 01:50:36 -08:00
Anjali Singhai Jain 9230165f00 i40e: Enable Loopback for the FCOE vsi as well
For all VSIs on a VEB, Loopback mode should be either on or off.
Our configuration requires them to be ON so that VSIs can directly
talk to each other without going out on the wire.

Change-ID: I77b8310bc846329972b13b185949ab1431a46c30
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-09 01:28:13 -08:00
Vasu Dev 4d48b56659 i40e: use dev_port for fcoe netdev
Set different dev_port value 1 for FCoE netdev than the default zero
dev_port value for PF netdev, this helps biosdevname user tool to
differentiate them correctly while both attached to the same PCI
function.

Change-ID: I8fb90e4ef52a1242f7580e49a3f0918735aee8ef
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-09 01:11:41 -08:00
Greg Rose 031477736b i40e: Fix function header
s/enable/disable

Change-ID: Ic0572a6c59d03e05a0a35d2e2e9d532e0512638d
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-09 00:56:13 -08:00
Matt Jared 9be00d6757 i40e: fix led blink toggle to enable steady state
Make sure to clear the GPIO blink field, instead of OR'ing against zero
if the field is already '1'.

Change-ID: Ie52a52abd48f6f52b20778a6b8b0c542dfc9245c
Signed-off-by: Matt Jared <matthew.a.jared@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-09 00:33:33 -08:00
Anjali Singhai Jain c29af37fd5 i40evf: Force Tx writeback on ITR
This patch forces Tx descriptor writebacks on ITR by kicking
off the SWINT interrupt when we notice that there are non-cache-aligned
Tx descriptors waiting in the ring while interrupts are disabled
under NAPI.

Change-ID: dd6d9675629bf266c7515ad7a201394618c35444
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-09 00:07:58 -08:00
Mitch Williams 88086e5d0a i40e: stop the service task at shutdown
Stop the service task in the shutdown handler, preventing it from
accessing the admin queue after it had been closed. This fixes a panic
that could occur when the system was shut down with a lot of VFs
enabled.

Change-ID: I286735e3842de472385bbf7ad68d30331e508add
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 23:33:18 -08:00
Hariprasad Shenai acde2c2d28 cxgb4: Fix trace observed while dumping clip_tbl
Handle clip_tbl debugfs entry, when clip_tbl isn't allocated.
In commit b5a02f503c ("cxgb4: Update ipv6 address handling api") wrong
argument was passed for single_open for clip_tbl debugfs entry, which led to
below trace. Fixing it.

======
call Trace:
 [<ffffffffa073c606>] clip_tbl_open+0x16/0x30 [cxgb4]
 [<ffffffff8119e2fa>] do_dentry_open+0x21a/0x370
 [<ffffffff8119e499>] vfs_open+0x49/0x50
 [<ffffffff811b0d0e>] do_last+0x21e/0x800
 [<ffffffff811b1382>] path_openat+0x92/0x470
 [<ffffffff8110569f>] ? rb_reserve_next_event+0xaf/0x380
 [<ffffffff8110569f>] ? rb_reserve_next_event+0xaf/0x380
 [<ffffffff811b189a>] do_filp_open+0x4a/0xa0
 [<ffffffff811bdc5d>] ? __alloc_fd+0xcd/0x140
 [<ffffffff8119fa4a>] do_sys_open+0x11a/0x230
 [<ffffffff8101219f>] ? syscall_trace_enter_phase2+0xaf/0x1b0
 [<ffffffff8119fb9e>] SyS_open+0x1e/0x20
 [<ffffffff815bf6f0>] tracesys_phase2+0xd4/0xd9
Code: 89 e5 66 66 66 66 90 48 8b 47 e0 48 8b 40 30 48 8b 40 58 c9 c3 66 0f 1f
84 00 00 00 00 00 55 48 89 e5 66 66 66 66 90 48 8b 47 e0 <48> 8b 40 58 c9 c3 66
66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48
RIP  [<ffffffff8120898d>] PDE_DATA+0xd/0x20
 RSP <ffff8800b08c3c48>
CR2: 0000000000000058

=====

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-08 21:53:27 -08:00
Mitch Williams 00293fdc42 i40evf: stop the watchdog for shutdown
Stop the watchdog during shutdown. Failing to do this causes a log full
of admin queue errors and the occasional hang when the system is shut
down.

Change-ID: Ib2fd11213cca2fa589eb68577e86b1000c23c250
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 21:08:42 -08:00
Mitch Williams 8b011ebb5c i40evf: ignore bogus messages from FW
Occasionally on shutdown, the FW will hand us a bunch of messages filled
with zeros, which can cause us to spin trying to handle them. Just
ignore these and get on with shutting down.

Change-ID: I347e9648f7153ad5a7b7e0847b87f7aad5f3e0da
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 20:50:19 -08:00
Mitch Williams f4a718810c i40evf: reset on module unload
When the module is being unloaded, don't wait for the PF to politely
handle all of our admin queue requests, as that might take forever with
a lot of VFs enabled. Instead, just stop everything and request a VF
reset.

When the original shutdown code was written, VF resets were unreliable,
so we avoided them. But with production hardware and firmware, and the
1.x PF driver, this is no longer the case.

This fixes a potential multi-minute delay on driver unload, VF disable,
or system shutdown.

Change-ID: Ib43d6d860ef6b9b8f26e8dce0615a0302608c7d9
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 20:32:57 -08:00
Mitch Williams 3ba9bcb4b6 i40e: add locking around VF reset
During VF deallocation, we need to lock out the VF reset code. However,
we cannot depend on simply masking the interrupt, as this does not lock
out the service task, which can still call the reset routine. Instead,
leave the interrupt enabled, but add locking around the VF disable and
reset routines.

For the disable code, we wait to get the lock, as the reset code will
take a finite amount of time to run. For the reset code, we just return
if we fail to get the lock. Since we know that the VFs are being
disabled, we don't need to handle the reset.
This fixes a panic when disabling SR-IOV.

Change-ID: Iea0a6cdef35c331f48c6d5b2f8e6f0e86322e7d8
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 20:11:44 -08:00
Mitch Williams 07574897d3 i40e: Use even more ARQ descriptors
When enabling 64 VFs and loading the VF driver in the host kernel, we
can easily overrun the PF's admin receive queue. Double the size of this
queue, and increase the work limit to allow the PF to handle more
requests in a single pass through the service task.

Change-ID: I0efbbdc61954bffad422a2f33c4b948a59370bf5
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 19:53:32 -08:00
Mitch Williams 1750a22fa9 i40e: delay after VF reset
Delay a minimum of 10ms after VF reset, to allow the hardware's internal
FIFOs to flush.

Change-ID: I8a02ddb28c9f0d7303a1eb21d0b2443e5b4c1cda
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 19:30:29 -08:00
John W Linville 83840e4bd5 i40e: avoid use of uninitialized v_budget in i40e_init_msix
This I40E_FCOE block increments v_budget before it has been initialized,
then v_budget gets overwritten a few lines later.  This patch just
reorders the code hunks in what I believe was the intended sequence.

Coverity: CID 1260099

Signed-off-by: John W Linville <linville@tuxdriver.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 19:01:06 -08:00
Rickard Strandqvist cf86da489d i40e: i40e_fcoe.c: Remove unused function
Remove the function i40e_rx_is_fip() that is not used anywhere.

This was partially found by using a static code analysis program
called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 18:45:17 -08:00
Rasmus Villemoes a4870f79c2 vxlan: Wrong type passed to %pIS
src_ip is a pointer to a union vxlan_addr, one member of which is a
struct sockaddr. Passing a pointer to src_ip is wrong; one should pass
the value of src_ip itself. Since %pIS formally expects something of
type struct sockaddr*, let's pass a pointer to the appropriate union
member, though this of course doesn't change the generated code.

Fixes: e4c7ed4153 ("vxlan: add ipv6 support")
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-08 17:14:40 -08:00
Shrikrishna Khare dd83829ed9 Driver: Vmxnet3: Change the hex constant to its decimal equivalent
The hex constant chosen for VMXNET3_REV1_MAGIC is offensive,
replace it with its decimal equivalent.

Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
Reviewed-by: Shreyas Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-08 16:55:01 -08:00
Eric Dumazet 567e4b7973 net: rfs: add hash collision detection
Receive Flow Steering is a nice solution but suffers from
hash collisions when a mix of connected and unconnected traffic
is received on the host, when flow hash table is populated.

Also, clearing flow in inet_release() makes RFS not very good
for short lived flows, as many packets can follow close().
(FIN , ACK packets, ...)

This patch extends the information stored into global hash table
to not only include cpu number, but upper part of the hash value.

I use a 32bit value, and dynamically split it in two parts.

For host with less than 64 possible cpus, this gives 6 bits for the
cpu number, and 26 (32-6) bits for the upper part of the hash.

Since hash bucket selection use low order bits of the hash, we have
a full hash match, if /proc/sys/net/core/rps_sock_flow_entries is big
enough.

If the hash found in flow table does not match, we fallback to RPS (if
it is enabled for the rxqueue).

This means that a packet for an non connected flow can avoid the
IPI through a unrelated/victim CPU.

This also means we no longer have to clear the table at socket
close time, and this helps short lived flows performance.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-08 16:53:57 -08:00
Hariprasad Shenai bad4379263 cxgb4: Add support in debugfs to dump the congestion control table
Dump Transport Processor modules congestion control configuration

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:52:39 -08:00
Hariprasad Shenai bf7c781d57 cxgb4: Add support to dump mailbox content in debugfs
Adds support to dump the current contents of mailbox and the driver which owns
it.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:52:39 -08:00
Hariprasad Shenai 797ff0f573 cxgb4: Add support for ULP RX logic analyzer output in debugfs
Dump Upper Layer Protocol RX module command trace

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:52:39 -08:00
Hariprasad Shenai 2d277b3b44 cxgb4: Added support in debugfs to display TP logic analyzer output
Dump Transport Processor event trace.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:52:39 -08:00
Hariprasad Shenai 70a5f3bb5f cxgb4: Add support in debugfs to display sensor information
Dump out various chip sensor information. Currently Chip Temperature
and Core Voltage.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:52:39 -08:00
Sathya Perla f986afcbe0 be2net: avoid unncessary swapping of fields in eth_tx_wrb
The 32-bit fields of a tx-wrb are little endian. The driver is currently
using be_dws_le_to_cpu() routine to swap (cpu to le) all the fields of
a tx-wrb. So, the rsvd field is also unnecessarily swapped.

This patch fixes this by individually swapping the required fields.
Also, the type of the fields in eth_tx_wrb{} is now changed to __le32
from u32 to avoid sparse warnings.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:59 -08:00
Vasundhara Volam 21252377bb be2net: process port misconfig async event
This patch adds support for processing the port misconfigure async
event generated by the FW. This event is generated typically when an
optical module is incorrectly installed or is faulty.

This patch also moves the port_name field to the adapter struct for
logging the event. As the be_cmd_query_port_name() call is now moved
to be_get_config(), it is modified to use the mailbox instead of MCCQ

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:59 -08:00
Sathya Perla f66b7cfd95 be2net: refactor be_set_rx_mode() and be_vid_config() for readability
This patch re-factors the filter setting (uc-list, mc-list, promisc, vlan)
code in be_set_rx_mode() and be_vid_config() to make it more readable
and reduce code duplication.
This patch adds a separate field to track the state/mode of filtering,
along with moving all the filtering related fields to one place in be
be_adapter structure.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:59 -08:00
Sathya Perla ac34b74378 be2net: remove duplicate code in be_cmd_rx_filter()
This patch passes BE_IF_FLAGS_XXX flags to be_cmd_rx_filter() routine
instead of the IFF_XXX flags. Doing this gets rid of the code to convert
the IFF_XXX flags to the BE_IF_FLAGS_XXX used by the FW cmd. The patch
also removes code for setting if_flags_mask that was duplicated for each
filter mode.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:58 -08:00
Vasundhara Volam 70a7b52570 be2net: use offset based FW flashing for Skyhawk chip
While sending FW update cmds to the FW, the driver specifies the "type"
of each component that needs to be flashed. The FW then picks the offset
in the flash area at which the componnet is to be flashed. This doesn't work
when new components that the current FW doesn't recognize, need to be
flashed. Recent FWs (10.2 and above) support a scheme of FW-update wherein
the "offset" of the component in the flash area can be specified instead
of the "type". This patch uses the "offset" based FW-update mechanism and
only when it fails, it fallsback to the old "type" based update.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:58 -08:00
Vasundhara Volam 81a9e226ff be2net: avoid flashing SH-B0 UFI image on SH-P2 chip
Skyhawk-B0 FW UFI is not compatible to flash on Skyhawk-P2 ASIC.
But, Skyhawk-P2 FW UFI is compatible with both B0 and P2 chips.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:58 -08:00
Vasundhara Volam 5d3acd0d16 be2net: refactor code that checks flash file compatibility
This patch re-factors the code that checks for flash file compatibility with
the chip type, for better readability, as follows:
	- be_get_ufi_type() returns the UFI type from the flash file
	- be_check_ufi_compatibility() checks if the UFI type is compatible
	  with the adapter/chip that is being flashed

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:58 -08:00
Vasundhara Volam 83b0611699 be2net: replace (1 << x) with BIT(x)
BIT(x) is the preffered usage.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:57 -08:00
Sathya Perla f7062ee5e4 be2net: move un-exported routines from be.h to respective src files
Routines that are called only inside one src file must remain in that
file itself. Including them in a header file that is used for exporting
routine/struct definitions, causes unnecessary compilation of other
src files, when such a routine is modified.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:50:57 -08:00
David S. Miller d78f802f18 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-02-05

This series contains updates to fm10k, ixgbe and ixgbevf.

Matthew fixes an issue where fm10k does not properly drop the upper-most four
bits on of the VLAN ID due to type promotion, so resolve the issue by not
masking off the bits, but by throwing an error if the VLAN ID is out-of-bounds.
Then cleans up two cases where variables were not being used, but were
being set, so just remove the unused variables.

Don cleans up sparse errors in the x550 family file for ixgbe.  Fixed up
a redundant setting of the default value for set_rxpba, which was done
twice accidentally.  Cleaned up the probe routine to remove a redundant
attempt to identify the PHY, which could lead to a panic on x550.  Added
support for VXLAN receive checksum offload in x550 hardware.  Added the
Ethertype Anti-spoofing feature for affected devices.

Emil enables ixgbe and ixgbevf to allow multiple queues in SRIOV mode.
Adds RSS support for x550 per VF.  Fixed up a couple of issues introduced
in commit 2b509c0cd2 ("ixgbe: cleanup ixgbe_ndo_set_vf_vlan"), fixed
setting of the VLAN inside ixgbe_enable_port_vlan() and disable the
"hide VLAN" bit in PFQDE when port VLAN is disabled.  Cleaned up the
setting of vlan_features by enabling all features at once.  Fixed the
ordering of the shutdown patch so that we attempt to shutdown the rings
more gracefully.  We shutdown the main Rx filter in the case of Rx and we
set the carrier_off state in the case of Tx so that packets stop being
delivered from outside the driver.  Then we shutdown interrupts and NAPI,
then finally stop the rings from performing DMA and clean them.  Added
code to allow for Tx hang checking to provide more robust debug info in
the event of a transmit unit hang in ixgbevf.  Cleaned up ixgbevf logic
dealing with link up/down by breaking down the link detection and up/down
events into separate functions, similar to how these events are handled
in other drivers.  Combined the ixgbevf reset and watchdog tasks into a
single task so that we can avoid multiple schedules of the reset task when
we have a reset event needed due to either the mailbox going down or
transmit packets being present on a link down.

v2: Fixed up patch #03 of the series to remove the variable type change
    based on feedback from David Laight
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:48:50 -08:00
hayeswang f5aaaa6db6 r8152: use BIT macro
Use BIT macro to replace (1 << bits).

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:46:25 -08:00
hayeswang 6e74d1749a r8152: replace get_protocol with vlan_get_protocol
vlan_get_protocol() has been defined and use it to replace
get_protocol().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:46:25 -08:00
hayeswang ccc39faf58 r8152: adjust the line feed for hw_features
Keep NETIF_F_HW_VLAN_CTAG_RX and NETIF_F_HW_VLAN_CTAG_TX at the
same line.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:46:25 -08:00
hayeswang 53543db5d5 r8152: check RTL8152_UNPLUG for rtl8152_close
It is unnecessary to accress the hw register if the device is unplugged.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:46:25 -08:00
hayeswang 51d979faa2 r8152: check linking status with netif_carrier_ok
Replace (tp->speed & LINK_STATUS) with netif_carrier_ok().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:46:25 -08:00
hayeswang 34203e25cb r8152: adjust lpm timer
Set LPM timer to 500us, except for RTL_VER_04 which doesn't link at
USB 3.0.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:46:24 -08:00
hayeswang e1a2ca9272 r8152: adjust rx_bottom
If a error occurs when submitting rx, skip the remaining submissions
and try to submit them again next time.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:46:24 -08:00
Lendacky, Thomas fd972b736b amd-xgbe: Check per channel DMA interrupt use in main ISR
When using per channel DMA interrupts the transmit interrupt (TI) and the
receive interrupt (RI) are masked off so as to not generate an interrupt
to the main ISR. However, should another interrupt fire for the DMA channel
that is handled by the main ISR the TI/RI bits can still be set. This
will cause the wrong and uninitialized napi structure to be used causing a
panic. Add a check to be sure per channel DMA interrupts are not enabled
before acting on those bit flags.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:44:42 -08:00
Florian Fainelli 9af197a8f6 net: dsa: bcm_sf2: implement GPHY power down
Implement the power on/off recommended procedure for the Single GPHY we
have on our Starfighter 2 switch. In order to make sure we get proper
LED link/activity signaling during suspend, switch the link indication
from the Switch/MAC to the PHY.

Finally, since the GPHY needs to be reset to be put in low power mode,
we will loose any context applied to it: workarounds, EEE etc.. so we
need to call phy_init_hw() to get our fixups re-applied successfully.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:38:40 -08:00
Florian Fainelli b083668c93 net: dsa: bcm_sf2: move GPHY enabling to its own function
Move the code that touches the single GPHY register from
bcm_sf2_sw_resume() to a separate function since we will have to
enable/disable the GPHY from different locations, and we want the code
to be self-contained.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:38:40 -08:00
Tobias Waldekranz 6e0ba47f91 dsa: do not dereference non-existing routing table
In the case where there is only one switch, no routing table will have
been allocated, so do not dereference it in this case.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-07 22:07:36 -08:00
Dan Carpenter 37c85c3498 net: sxgbe: fix error handling in init_rx_ring()
There are a couple bugs with the error handling in this function.

1) If we can't allocate "rx_ring->rx_skbuff" then we should call
   dma_free_coherent() but we don't.
2) free_rx_ring() frees "rx_ring->rx_skbuff_dma" and "rx_ring->rx_skbuff"
   so calling it in a loop causes a double free.

Also it was a bit confusing how we sometimes freed things before doing
the goto.  I've cleaned it up so it does error handling in normal kernel
style.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-06 12:50:12 -08:00
Kalle Valo d53071143a Merge ath-next from ath.git
Major changes in ath10k:

* add support for qca6174 hardware
* enable RX batching to reduce CPU load
2015-02-06 16:14:11 +02:00
Kalle Valo 8cd4cbf249 * Add support for beamforming
* Enable stuck queue detection for iwlmvm
 * A few fixes for EBS scan
 * Fixes for various failure paths
 * Improvements for TDLS Offchannel
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Merge tag 'iwlwifi-next-for-kalle-2015-02-03' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

* Add support for beamforming
* Enable stuck queue detection for iwlmvm
* A few fixes for EBS scan
* Fixes for various failure paths
* Improvements for TDLS Offchannel
2015-02-06 08:57:37 +02:00
Markus Elfring 297540f69f brcm80211: Delete unnecessary checks before two function calls
The functions brcmu_pkt_buf_free_skb() and usb_free_urb() test whether
their argument is NULL and then return immediately. Thus the test around
the call is not needed.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:52:50 +02:00
Markus Elfring 6f24fe3059 hostap: Delete an unnecessary check before the function call "kfree"
The kfree() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:51:35 +02:00
Markus Elfring 71b9d0aeac orinoco: Delete an unnecessary check before the function call "kfree"
The kfree() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:50:24 +02:00
Markus Elfring c0420ea0b5 ath9k: Delete an unnecessary check before the function call "relay_close"
The relay_close() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:49:22 +02:00
Markus Elfring ee4ddad823 cw1200: Less function calls in cw1200_load_firmware_cw1200() after error detection
The functions kfree() and release_firmware() were called in a few cases
by the cw1200_load_firmware_cw1200() function during error handling even if
the passed variables contained still a null pointer.

Corresponding implementation details could be improved by adjustments for
jump targets.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:48:04 +02:00
Markus Elfring df970d39b9 cw1200: Delete an unnecessary check before the function call "release_firmware"
The release_firmware() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:47:40 +02:00
Nicholas Mc Guire c1f1f6663b orinoco: orinoco_tmd use msecs_to_jiffies for conversion
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:45:46 +02:00
Nicholas Mc Guire 3427da4597 orinoco: orinoco_pci use msecs_to_jiffies for conversion
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:44:58 +02:00
Nicholas Mc Guire ab458cc85f orinoco: orinoco_plx use msecs_to_jiffies for conversion
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:44:41 +02:00
Nicholas Mc Guire 4d24550112 cw1200: use msecs_to_jiffies for conversion
This is only an API consolidation to make things more readable.
Instances of  HZ / CONST  are replaced by appropriate msecs_to_jiffies().

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:43:29 +02:00
Sergey Ryazanov 8bfae4f993 ath5k: fix spontaneus AR5312 freezes
Sometimes while CPU have some load and ath5k doing the wireless
interface reset the whole WiSoC completely freezes. Set of tests shows
that using atomic delay function while we wait interface reset helps to
avoid such freezes.

The easiest way to reproduce this issue: create a station interface,
start continous scan with wpa_supplicant and load CPU by something. Or
just create multiple station interfaces and put them all in continous
scan.

This patch partially reverts the commit 1846ac3dbe ("ath5k: Use
usleep_range where possible"), which replaces initial udelay()
by usleep_range().

I do not know actual source of this issue, but all looks like that HW
freeze is caused by transaction on internal SoC bus, while wireless
block is in reset state.

Also I should note that I do not know how many chips are affected, but I
did not see this issue with chips, other than AR5312.

CC: Jiri Slaby <jirislaby@gmail.com>
CC: Nick Kossifidis <mickflemm@gmail.com>
CC: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Fixes: 1846ac3dbe ("ath5k: Use usleep_range where possible")
Reported-by: Christophe Prevotaux <c.prevotaux@rural-networks.com>
Tested-by: Christophe Prevotaux <c.prevotaux@rural-networks.com>
Tested-by: Eric Bree <ebree@nltinc.com>
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:42:32 +02:00
Sujith Manoharan c20bbda32a ath9k: Choose correct rate for 2GHz channel
Set the transmit rate for the keep-alive frames
as 1M/CCK when the current channel is in the
2GHz band.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:39:42 +02:00
Sujith Manoharan 23ee7c33aa ath9k: Clear TSF2 properly
Chips in the AR9003 family have a second TSF, which
needs to be cleared when putting the card to
sleep.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:39:37 +02:00
Sujith Manoharan b6f68b1ecb ath9k: Program AR_WA correctly
Setting the required configuration in the PCIE
WorkAround register needs to be done after all the
WoW parameters have been set.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:39:32 +02:00
Sujith Manoharan bb6313140b ath9k: Fix issues with WoW enable
This patch addresses several issues with the
ath9k_hw_wow_enable() routine:

* The usage of set/clr variables is removed. Writing
  the required values to registers is cleaner.

* The shift value of 28 for the contention window field
  in AR_WOW_PATTERN is incorrect, change it to 27.

* Disabling Keep Alive needs to be done based on the
  LINK_CHANGE option. This is done unconditionally now,
  fix this.

* The workaround for the D1/D3 issue is required only
  for AR9462.

* The bitfield for enabling pattern matching for packets
  less than 256 bytes has expanded for new chips, handle
  this accordingly.

* General cleanup.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:39:26 +02:00
Sujith Manoharan e68e9c10fb ath9k: Register correct WOW details with mac80211
Since the number of user patterns is higher for
newer chips, make sure that this is registered
during initialization.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:39:21 +02:00
Sujith Manoharan a28815db67 ath9k: Add support for more WOW patterns
Newer chips like WB222, WB335 support more than
8 user-configurable patterns. This patch adds
support for it by setting up the correct HW
registers.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:39:12 +02:00
Larry Finger 6d4beca377 rtlwifi: rtl8192ee: Fix problems with calculating free space in FIFO
This driver utilizes a FIFO buffer for RX descriptors. There are four places
in the code where it calculates the number of free slots. Several of those
locations do the calculation incorrectly. To fix these and to prevent future
mistakes, a common inline routine is created.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V3.18]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:36:08 +02:00
Troy Tan d0311314d0 rtlwifi: rtl8192ee: Fix handling of new style descriptors
The hardware and firmware for the RTL8192EE utilize a FIFO list of
descriptors. There were some problems with the initial implementation.
The worst of these failed to detect that the FIFO was becoming full,
which led to the device needing to be power cycled. As this condition
is not relevant to most of the devices supported by rtlwifi, a callback
routine was added to detect this situation. This patch implements the
necessary changes in the pci handler, and the linkage into the appropriate
rtl8192ee routine.

Signed-off-by: Troy Tan <troy_tan@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V3.18]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-06 08:36:00 +02:00
Don Skidmore 5b7f000ff9 ixgbe: add Tx anti spoofing support
This patch enables the ethertype Anti-Spoofing feature for affected
devices. It is configured such that LLDP packets sent by a VF will
be dropped.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:58:46 -08:00
Emil Tantilov 9ac5c5ccdb ixgbevf: combine all of the tasks into a single service task
This change combines the reset and watchdog tasklets into a single task.

The advantage of this is that we can avoid multiple schedules of the reset
task when we have a reset event needed due to either the mailbox going down
or transmit packets being present on a link down.

CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:58:45 -08:00
Emil Tantilov e66c92ad58 ixgbevf: rewrite watchdog task to function similar to igbvf
This patch cleans up the logic dealing with link down/up by breaking down the
link detection and up/down events into separate functions - similar to how these
events are handled in other drivers.

CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:58:45 -08:00
Emil Tantilov e08400b707 ixgbevf: Add code to check for Tx hang
This patch adds code to allow for Tx hang checking.  The idea is to provide
more robust debug info in the event of a transmit unit hang. Similar to the
logic in ixgbe.

CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:58:44 -08:00
Emil Tantilov d9bdb57f9c ixgbevf: Fix ordering of shutdown to correctly disable Rx and Tx
This patch updates the ordering of the shutdown path so that we attempt to
shutdown the rings more gracefully. Basically the big changes are that we
shutdown the main Rx filter in the case of Rx and we set the carrier_off
state in the case of Tx so that packets stop being delivered from outside
the driver.  Then we shut down interrupts and NAPI.  Finally we stop the
rings from performing DMA and clean them.  This is a bit more graceful than
the previous path.

CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:58:44 -08:00
Emil Tantilov 39f35a370b ixgbevf: set vlan_features in a single write instead of several ORs
Clean up the setting of vlan_features by enabling all features at once.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:58:42 -08:00
Don Skidmore 3f207800a9 ixgbe: add VXLAN offload support for X550 devices
Add support VXLAN receive checksum offload in X550 hardware.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:49 -08:00
Don Skidmore 4dedadcbae ixgbe: Cleanup probe to remove redundant attempt to ID PHY
We always identify the PHY in our reset_hw path anyway so there is
no need to do it in get_invariants().  The reason I even noticed this
is that for new hardware (X550em) we don't assign some methods until
later in probe and calling phy.ops.read_reg could lead to a panic.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:48 -08:00
Don Skidmore f9c9e488ce ixgbe: cleanup redundant default method set_rxpba
My original patch 6a14ee0cfb "ixgbe: Add X550 support function pointers"
accidental set a default value for this structure member twice.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:48 -08:00
Emil Tantilov 42ce2c8ef6 ixgbe: fix setting port VLAN
This patch fixes couple of issues introduced by
commit 2b509c0cd2 ("ixgbe: cleanup ixgbe_ndo_set_vf_vlan")

- fix setting of the VLAN inside ixgbe_enable_port_vlan()
- disable the "hide VLAN" bit in PFQDE when port VLAN is disabled

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:47 -08:00
Emil Tantilov 9295edb472 ixgbevf: add RSS support for X550
X550 provides RSS registers for configuring RSS per VF.

This patch introduces ixgbevf_setup_vfmrqc() which uses the VFRETA,
VFRSSRK and VFMRQC registers to configure RSS on X550.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:47 -08:00
Emil Tantilov 2dc571aa61 ixgbevf: enable multiple queue support
This patch enables multiple queues and RSS support for the VF.
Maximum of 2 queues are supported due to available vectors.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:46 -08:00
Emil Tantilov dec2e395fd ixgbe: allow multiple queues in SRIOV mode
ixgbe_set_sriov_queues() has the logic to allow multiple queues, this patch
just removes the limitation.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:46 -08:00
Don Skidmore 7ddbde3f74 ixgbe: cleanup sparse errors in new ixgbe_x550.c file
This patch cleans up prototypes that should have been defined
as static.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:41:51 -08:00
Matthew Vick f4a80f1ef7 fm10k: Resolve compile warnings with W=1
Fix two cases where variables are being set but not used.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil Singh<Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:41:51 -08:00
Matthew Vick 33a44c2873 fm10k: Validate VLAN ID in fm10k_update_xc_addr_pf
Currently, fm10k_update_xc_addr_pf has an issue where it does not
properly drop the upper-most four bits of the VLAN ID due to type
promotion. Resolve the issue not by masking off the bits, but by
throwing an error if the VLAN ID is out-of-bounds.

Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:41:50 -08:00
Lad, Prabhakar 2ca292d968 vxge: fix sparse warning
this patch fixes following sparse warning:

vxge-config.c:4640:30: warning: Using plain integer as NULL pointer

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 16:07:06 -08:00
Lad, Prabhakar 38741d50eb xen-netback: fix sparse warning
this patch fixes following sparse warning:

interface.c:83:5: warning: symbol 'xenvif_poll' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 16:04:22 -08:00
Lad, Prabhakar 8093b1c313 net/macb: fix sparse warning
this patch fixes following sparse warning:

macb.c:2038:26: warning: symbol 'gem_ethtool_ops' was not declared. Should it be static?

Alongside drops exporting of gem_ethtool_ops as there is no need.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 16:03:28 -08:00
Lad, Prabhakar 1444c301a4 net: bnx2x: fix sparse warnings
this patch fixes following sparse warnings:

bnx2x_main.c:9172:6: warning: symbol 'bnx2x_stop_ptp' was not declared. Should it be static?
bnx2x_main.c:13321:6: warning: symbol 'bnx2x_register_phc' was not declared. Should it be static?
bnx2x_main.c:14638:5: warning: symbol 'bnx2x_enable_ptp_packets' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 16:03:28 -08:00
Lad, Prabhakar 57ae84a009 enic: enic_main: fix sparse warnings
this patch fixes following sparse warnings:

enic_main.c:92:28: warning: symbol 'mod_table' was not declared. Should it be static?
enic_main.c:109:28: warning: symbol 'mod_range' was not declared. Should it be static?
enic_main.c:1306:5: warning: symbol 'enic_busy_poll' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 16:03:27 -08:00
Lad, Prabhakar a20667bf7d enic: enic_ethtool: fix sparse warning
this patch fixes following sparse warning:

enic_ethtool.c:95:6: warning: symbol 'enic_intr_coal_set_rx' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 16:03:27 -08:00