The i40e_suspend() function was failing to save PCI state
and this would result in a kernel stack trace from a WARN_ONCE in the
pci_legacy_suspend() function.

Add a call to pci_save_state() to fix that problem.

Change-ID: I4736e62bb660966bd208cc8af617a14cb07fc4bd
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The i40e_suspend() function calls another function that preps the device
for the power save and resume by freeing all the Tx/Rx resources and
interrupts but that function does not free the "other" causes interrupt
vector and IRQ. It also fails to call synchronize_irq() before freeing
the IRQ vectors.  This sometimes may result in some AER errors on those
systems with that PCIe error reporting feature enabled.

Call synchronize_irq() before freeing IRQ vectors and explicitly free
the other causes interrupt resources and shut down that MSIX interrupt.

Change-ID: Ib88e4536756518a352446da0232189716618ad81
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

If the user adds an obscene amount of MAC addresses, the driver will run
into the situation where it has too many address requests to fit into a
single PF message. The driver checks for this case, and calculates the
maximum number of messages that it can send. Then it completely ignores
this count and overflows the buffer.

Fix this by checking the address count and bailing out of the loop at
the appropriate time.

Change-ID: If8dcbb04602c75941dc0cd8309065e1de9ca791c
Signed-off-by: NMitch Williams <mitch.a.williams@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

We were failing to set the client interface down when we put the VSI
down. Add this call so that the client doesn't get an open called with
no close.

Also remove an un-needed delay. The VF should not be affected at all by
i40e_down.

Change-ID: I1135dffef534bf84e6fed57cf51bcf590e6cfaf7
Signed-off-by: NCatherine Sullivan <catherine.sullivan@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Now that VF RSS is configured by the PF driver, it needs to set the RSS
Hash Enable registers by default. Without this, no packets will be
hashed and they'll all end up on queue 0.

Change-ID: I38e425f40ddb81e3b19a951cfbb939fa5b1123f1
Signed-off-by: NMitch Williams <mitch.a.williams@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This function uses the i40e_hw struct all over the place, so why doesn't
it keep a pointer to the struct? Add this pointer as a local variable
and use it consistently throughout the function.

Change-ID: I10eb688fe40909433fcb8ac7ac891cef67445d72
Signed-off-by: NMitch Williams <mitch.a.williams@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Add functions to enable and disable default VSI on a VEB. This allows
for configuration of limited promiscuous mode specifically for bridging
purposes.

Change-ID: I0cc5bd68b31c500fdff4d47e1f15d50d2739faf4
Signed-off-by: NMitch Williams <mitch.a.williams@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Russell King says:

====================
Initial SFP support patches

Please review and merge this initial patch set, which is part of a
larger set previously posted adding SFP support to phy and mvneta.

This initial set are focused on cleaning up and reorganising the
fixed-phy code to allow the core software-phy code to be re-used.

These are based on net-next.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There is no prevention of a concurrent call to both fixed_mdio_read()
and fixed_phy_update_state(), which can result in the state being
modified while it's being inspected.  Fix this by using a seqcount
to detect modifications, and memcpy()ing the state.

We remain slightly naughty here, calling link_update() and updating
the link status within the read-side loop - which would need rework
of the design to change.
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Generate software phy registers as and when requested, rather than
duplicating the state in fixed_phy.  This allows us to eliminate
the duplicate storage of of the same data, which is only different
in format.

As fixed_phy_update_regs() no longer updates register state, rename
it to fixed_phy_update().
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Separate out the generation of MII registers from the state validation.
This allows us to simplify the error handing in fixed_phy() by allowing
earlier error detection.
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Convert the swphy register generation to tabular form which allows us
to eliminate multiple switch() statements.  This results in a smaller
object code size, more efficient, and easier to add support for faster
speeds.

Before:

Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         00000164  00000000  00000000  00000034  2**2

   text    data     bss     dec     hex filename
    388       0       0     388     184 swphy.o

After:

Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         000000fc  00000000  00000000  00000034  2**2
  5 .rodata       00000028  00000000  00000000  00000138  2**2

   text    data     bss     dec     hex filename
    324       0       0     324     144 swphy.o
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Move the fixed_phy MII register generation to a library to allow other
software phy implementations to use this code.
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Merge tag 'linux-can-next-for-4.8-20160623' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2016-06-17

this is a pull request of 4 patches for net-next/master.

Arnd Bergmann's patch fixes a regresseion in af_can introduced in
linux-can-next-for-4.8-20160617. There are two patches by Ramesh
Shanmugasundaram, which add CAN-2.0 support to the rcar_canfd driver.
And a patch by Ed Spiridonov that adds better error diagnoses messages
to the Ed Spiridonov driver.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Replace calls to kmalloc followed by a memcpy with a direct call to
kmemdup.

The Coccinelle semantic patch used to make this change is as follows:
@@
expression from,to,size,flag;
statement S;
@@

-  to = \(kmalloc\|kzalloc\)(size,flag);
+  to = kmemdup(from,size,flag);
   if (to==NULL || ...) S
-  memcpy(to, from, size);
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Acked-by: NYing Xue <ying.xue@windriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

trivial fixes to spelling mistakes of the words "excessive collisions"
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

trivial fixes to spelling mistakes of the word "descriptors"
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Saeed Mahameed says:

====================
Mellanox 100G mlx5e Ethernet extensions

This series includes multiple features extensions for mlx5 Ethernet netdevice driver.
Namely, TX Rate limiting, RX interrupt moderation, ethtool settings.

TX Rate limiting:
	- ConnectX-4 rate limiting infrastructure
	- Set max rate NDO support

RX interrupt moderation:
	- CQE based coalescing option (controlled via priv flags)
	- Adaptive RX coalescing

ethtool settings:
	- priv flags callbacks
	- Support new ksettings API
	- Add 50G missing link mode
	- Support auto negotiation on/off

Applied on top: 0e9390eb ("Merge branch 'mlxsw-next'")
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Previous to this patch auto negotiation was reported off although it was
on by default in hardware. This patch reports the correct information to
ethtool and allows the user to toggle it on/off.

Added another parameter to set port proto function in order to pass
the auto negotiation field to the hardware.
Signed-off-by: NGal Pressman <galp@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use new get/set link ksettings and remove get/set settings legacy
callbacks.
This allows us to use bitmasks longer than 32 bit for supported and
advertised link modes and use modes that were previously not supported.
Signed-off-by: NGal Pressman <galp@mellanox.com>
CC: Ben Hutchings <bwh@kernel.org>
CC: David Decotigny <decot@googlers.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add MLX5E_50GBASE_SR2 as ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT.
Signed-off-by: NGal Pressman <galp@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Cc: Ben Hutchings <bwh@kernel.org>
Cc: David Decotigny <decot@googlers.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT bit.
Signed-off-by: NGal Pressman <galp@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Cc: Ben Hutchings <bwh@kernel.org>
Cc: David Decotigny <decot@googlers.com>
Acked-By: NDavid Decotigny <decot@googlers.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add a dedicated function to toggle port link. It should be called only
after setting a port register.
Toggle will set port link to down and bring it back up in case that it's
admin status was up.
Signed-off-by: NGal Pressman <galp@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Striving for high message rate and low interrupt rate.

Usage:
        ethtool -C <interface> adaptive-rx on/off
Signed-off-by: NGil Rockah <gilr@mellanox.com>
Signed-off-by: NAchiad Shochat <achiad@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In this mode the moderation timer will restart upon
new completion (CQE) generation rather than upon interrupt
generation.

The outcome is that for bursty traffic the period timer will never
expire and thus only the moderation frames counter will dictate
interrupt generation, thus the interrupt rate will be relative
to the incoming packets size.
If the burst seizes for "moderation period" time then an interrupt
will be issued immediately.

CQE based moderation is off by default and can be controlled
via ethtool set_priv_flags.

Performance tested on ConnectX4-Lx 50G.

Less packet loss in netperf UDP and TCP tests, with no bw degradation,
for both single and multi streams, with message sizes of
64, 1024, 1472 and 32768 byte.
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NAchiad Shochat <achiad@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NGal Pressman <galp@mellanox.com>
Signed-off-by: NGil Rockah <gilr@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Introduce an infrastructure for getting/setting private net device
flags.

Currently a 'nop' priv flag is added, following patches will override
the flag will actual feature specific flags.
Signed-off-by: NGal Pressman <galp@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Implement set_maxrate ndo.
Use the rate index from the hardware table to attach to channel SQ/TXQ.
In case of failure to configure new rate, the queue remains with
unlimited rate.

We save the configuration on priv structure and apply it each time
Send Queues are being reinitialized (after open/close) operations.
Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Configuring and managing HW rate limit tables.
The HW holds a table of rate limits, each rate is
associated with an index in that table.
Later a Send Queue uses this index to set the rate limit.
Multiple Send Queues can have the same rate limit, which is
represented by a single entry in this table.
Even though a rate can be shared, each queue is being rate
limited independently of others.

The SW shadow of this table holds the rate itself,
the index in the HW table and the refcount (number of queues)
working with this rate.

The exported functions are mlx5_rl_add_rate and mlx5_rl_remove_rate.
Number of different rates and their values are derived
from HW capabilities.
Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Sathya Perla says:

====================
be2net: patch set

Hi Dave, pls consider commiting the following patches to the net-next tree.
Thanks!

Patch 1 replaces the be_max_eqs() macro with two new macros called
be_max_nic_eqs() and be_max_func_eqs() to clear confusion in that part
of the code.

Patch 2 adds support to configure asymmetric number of rx/tx queues via
ethtool set-channels option.

Patch 3 disables EVB when VFs are not enabled on a BE3 SR-IOV config to
avoid the broadcast echo problem.

Patch 4 updates copyright markings in be2net src files

Patch 5 updates the be2net maintainers' list
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch removes Padmanabh's name from the maintainers list as he's no
longer with the company. It also adds the driver name on the headline to
make it easy to lookup the maintainers list by the driver name.
Signed-off-by: NSathya Perla <sathya.perla@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch updates year and company name in the copyright markings in the
be2net source files.
Signed-off-by: NSomnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: NSathya Perla <sathya.perla@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

On SR-IOV profiles, when the user connects a Linux Bridge or OVS to a BE3
vport, they suffer the "broadcast/multicast echo" problem. BE3 EVB echoes
broadcast and multicast packets back to PF's vport confusing the
Linux bridge.  BE3 relies on the src-mac addr being programmed on the
interface to avoid sending back an echo of a broadcast or multicast packet
on a vPort. When a Linux bridge is connected to a BE3, the mac-addr of the
VM behind the bridge doesn't get configured on the vPort and so echo
cancellation doesn't work.
This patch worksaround this problem by disabling the EVB initially
and re-enabling it *only* when SR-IOV is enabled by the user. For the
driver fix to work, the BE3 FW version must be >= 11.1.84.0.
Signed-off-by: NSomnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: NSathya Perla <sathya.perla@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

be2net so far supported creation of RX/TX queues only in pairs.
On configs where rx and tx queue counts are different, creation of only
the lesser number of queues has been supported.

This patch now allows a combination of RX/TX-only channels along with
combined channels. N TX-queues and M RX-queues can be created with the
following cmds:
ethtool -L ethX combined N rx M-N  (when N < M)
ethtool -L ethX combined M tx N-M (when M < N)

Setting both RX-only and TX-only channels is still not supported.
It is mandatory to create atleast one combined channel.
Signed-off-by: NSathya Perla <sathya.perla@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The EQs available on a function are shared between NIC and RoCE.
The be_max_eqs() macro was so far being used to refer to the max number of
EQs available for NIC. This has caused some confusion in the code. To fix
this confusion this patch introduces a new macro called be_max_nic_eqs()
to refer to the max number of EQs avialable for NIC only and renames
be_max_eqs() to be_max_func_eqs().
Signed-off-by: NSathya Perla <sathya.perla@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Andy Duan says:

====================
net: fec: add new type device

Different i.MX SOC FEC support different features like :
    - i.MX6Q/DL FEC does not support AVB and interrupt coalesc
    - i.MX6SX/i.MX7D supports AVB and interrupt coalesc
    - i.MX6UL/ULL does not support AVB, but support interrupt coalesc

Then, add new quirk flag to judge the supported features, and add new
type device for i.MX6UL.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

i.MX6UL is a member in i.MX series family, the SOC FEC inherits from
i.MX6SX but removes some IP features, lets define a new type for fec
device.
Signed-off-by: NFugang Duan <fugang.duan@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Different i.MX SOC FEC support different features like :
- i.MX6Q/DL FEC does not support AVB and interrupt coalesc
- i.MX6SX/i.MX7D supports AVB and interrupt coalesc
- i.MX6UL/ULL does not support AVB, but support interrupt coalesc

So, add new quirk flag to judge the supported features.
Signed-off-by: NFugang Duan <fugang.duan@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Merge tag 'rxrpc-rewrite-20160622-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

David Howells says:

====================
rxrpc: Get rid of conn bundle and transport structs

Here's the next part of the AF_RXRPC rewrite.  The primary purpose of this
set is to get rid of the rxrpc_conn_bundle and rxrpc_transport structs.
This simplifies things for future development of the connection handling.

To this end, the following significant changes are made:

 (1) The rxrpc_connection struct is given pointers to the local and peer
     endpoints, inside the rxrpc_conn_parameters struct.  Pointers to the
     transport's copy of these pointers are then redirected to the
     connection struct.

 (2) Exclusive connection handling is fixed.  Exclusive connections should
     do just one call and then be retired.  They are used in security
     negotiations and, I believe, the idea is to avoid reuse of negotiated
     security contexts.

     The current code is doing a single connection per socket and doing all
     the calls over that.  With this change it gets a new connection for
     each call made.

 (3) A new sendmsg() control message marker is added to make individual
     calls operate over exclusive connections.  This should be used in
     future in preference to the sockopt that marks a socket as "exclusive
     connection".

 (4) IDs for client connections initiated by a machine are now allocated
     from a global pool using the IDR facility and are unique across all
     client connections, no matter their destination.  The IDR facility is
     then used to look up a connection on the connection ID alone.  Other
     parameters are then verified afterwards.

     Note that the IDR facility may use a lot of memory if the IDs it holds
     are widely scattered.  Given this, in a future commit, client
     connections will be retired if they are more than a certain distance
     from the last ID allocated.

     The client epoch is advanced by 1 each time the client ID counter
     wraps.  Connections outside the current epoch will also be retired in
     a future commit.

 (5) The connection bundle concept is removed and the client connection
     tree is moved into the local endpoint.  The queue for waiting for a
     call channel is moved to the rxrpc_connection struct as there can only
     be one connection for any particular key going to any particular peer
     now.

 (6) The rxrpc_transport struct is removed and the service connection tree
     is moved into the peer struct.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add constants and callback functions for the dwmac on rk3228/rk3229 socs.
As can be seen, the base structure is the same, only registers and the
bits in them moved slightly.
Signed-off-by: NXing Zheng <zhengxing@rock-chips.com>
Reviewed-by: NHeiko Stuebner <heiko@sntech.de>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Eric Dumazet says:

====================
net_sched: bulk dequeue and deferred drops

First patch adds an additional parameter to ->enqueue() qdisc method
so that drops can be done outside of critical section
(after locks are released).

Then fq_codel can have a small optimization to reduce number of cache
lines misses during a drop event
(possibly accumulating hundreds of packets to be freed).

A small htb change exports the backlog in class dumps.

Final patch adds bulk dequeue to qdiscs that were lacking this feature.

This series brings a nice qdisc performance increase (more than 80 %
in some cases).
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>