For legacy applications using 32bit variable, SO_MAX_PACING_RATE
has to cap the returned value to 0xFFFFFFFF, meaning that
rates above 34.35 Gbit are capped.

This patch allows applications to read socket pacing rate
at full resolution, if they provide a 64bit variable to store it,
and the kernel is 64bit.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

64bit kernels now support 64bit pacing rates.

This commit changes setsockopt() to accept 64bit
values provided by applications.

Old applications providing 32bit value are still supported,
but limited to the old 34Gbit limitation.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

By adding a check for an optional key/value pair to the test case
data, individual test cases may be skipped to prevent tdc from
aborting a test run due to setup or teardown failure.

If a test case is skipped, it will still appear in the results
output to allow for a consistent number of executed tests in each
run. However, the test will be marked as skipped.

This support for skipping extends to any plugins that may generate
additional results for each executed test.
Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Ido Schimmel says:

====================
mlxsw: spectrum_acl: Split rehash work into chunks

Jiri says:

When rehash happens on a vregion with many rules and they are being
migrated, it might take significant time to finish the job. During that
time vregion->lock is taken which prevents rules from being
added/deleted from the vregion.

Aim of this patchset is to allow to interrupt migration of rules during
rehash, reschedule and give chance for rules to be added/deleted. Then
continue migration in another execution of scheduled work.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

The return value is ignored anyway, so just return void.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Store pointer to vchunk where the migration was interrupted, as well as
ventry pointer to start from and to stop at (during rollback). This
saved pointers need to be forgotten in case of ventries list or vchunk
list changes, which is done by couple of "changed" helpers.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently, migration of vregions with many entries may take long time
during which insertions and removals of the rules are blocked
due to wait to acquire vregion->lock.

To overcome this, allow to interrupt and continue rehash work according
to the set credits - number of rules to migrate.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In order to simplify the code and to prepare it for
interrupted/continued migration process, do the rollback in case of
migration error as another call to mlxsw_sp_acl_tcam_vchunk_migrate_all().
It can be understood as "migrate all back".
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In preparations of interrupt/continue of rehash work, put the code that
is done at the beginning/end of vchunk migrate function into separate
functions.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Put the this_is_rollback flag into rehash context struct in preparations
for interrupt/continue of rehash work.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Remove some of variables in function mlxsw_sp_acl_tcam_ventry_migrate()
so the names are aligned with the rest of the code.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Make the vchunk->chunk contain pointer of a new chunk we migrate to.
In case of a rollback, it contains the original chunk.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Make the vregion->region contain pointer of a new region we migrate to.
In case of a rollback, it contains the original region.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Push code from the beginning and end of function
mlxsw_sp_acl_tcam_vregion_migrate() into rehash_start()/end() functions.
Then all the things needed to be done before and after the actual
migration process will be grouped together.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In preparations for interrupt/continue of rehash work, put the code at
the beginning/end of the rehash function into separate functions.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Prepare for continued migration. Introduce a new structure to track
rehash context and save hint_priv into it.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Check if the entry is already in a chunk where we want it to be. In that
case, skip migration. This is preparation for "per parts" migration
where this situation may occur.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

More rehash related fields are going to come. Push "dw" into sub-struct
that will accommodate the others as well.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

There are no more in tree users of the
switchdev_trans_item_{dequeue,enqueue} or switchdev_trans_item structure
in the kernel since commit 00fc0c51 ("rocker: Change world_ops API
and implementation to be switchdev independant").

Remove this unused code and update the documentation accordingly since.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Stefan Schmidt says:

====================
doc: net: ieee802154: move from plain text to rst

The ieee802154 subsystem doc was still in plain text. With the networking book
taking shape I thought it was time to do the first step and move it over to rst.
This really is only the minimal conversion. I need to take some time to update
and extend the docs.

The patches are based on net-next, but they only touch the networking book so I
would not expect and trouble. From what I have seen they would go through
Jonathan's tree after being acked by Dave? If you want this patches against a
different tree let me know.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

The plain text docs are converted to rst now, which allows us to remove
the old text file from the tree.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Moving the ieee802154 docs from a plain text file into the new rst
style. This commit only does the minimal needed change to bring the
documentation over. Follow up patches will improve and extend on this.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

devlink suffers from a few kdoc warnings:

net/core/devlink.c:5292: warning: Function parameter or member 'dev' not described in 'devlink_register'
net/core/devlink.c:5351: warning: Function parameter or member 'port_index' not described in 'devlink_port_register'
net/core/devlink.c:5753: warning: Function parameter or member 'parent_resource_id' not described in 'devlink_resource_register'
net/core/devlink.c:5753: warning: Function parameter or member 'size_params' not described in 'devlink_resource_register'
net/core/devlink.c:5753: warning: Excess function parameter 'top_hierarchy' description in 'devlink_resource_register'
net/core/devlink.c:5753: warning: Excess function parameter 'reload_required' description in 'devlink_resource_register'
net/core/devlink.c:5753: warning: Excess function parameter 'parent_reosurce_id' description in 'devlink_resource_register'
net/core/devlink.c:6451: warning: Function parameter or member 'region' not described in 'devlink_region_snapshot_create'
net/core/devlink.c:6451: warning: Excess function parameter 'devlink_region' description in 'devlink_region_snapshot_create'
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Igor Russkikh says:

====================
net: aquantia: minor bug fixes after static analysis

This patchset fixes minor errors and warnings found by smatch and kasan.

Extra patch is to replace AQ_HW_WAIT_FOR with readx_poll_timeout
to improve readability.

V2:
use readx_poll
resubmitted to net-next since the changeset became quite big.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Replace some direct registers reads with better
online functions.
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

David noticed the original define was hiding 'err' variable
reference. Thats confusing and counterintuitive.

Andrew noted the whole macro could be replaced with standard readx_poll
kernel macro. This makes code more readable.
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This is a real stack undercorruption found by kasan build.

The issue did no harm normally because it only overflowed
2 bytes after `bitary` array which on most architectures
were mapped into `err` local.

Fixes: bab6de8f ("net: ethernet: aquantia: Atlantic A0 and B0 specific functions.")
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The overflow is detected by smatch:

drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c: 175
  aq_pci_func_free_irqs() error: buffer overflow 'self->aq_vec' 8 <= 31

In reality msix_entry_mask always restricts number of iterations.
Adding extra condition to make logic clear and smatch happy.
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/aquantia/atlantic/aq_nic.c: 991:1:
  warning: no newline at end of file
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Not careful array dereference caused analysis tools
to think there could be memory overflow.

There was actually no corruption because the array is
two dimensional.

drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c: 140
  aq_ethtool_get_strings() error:
    memcpy() '*aq_ethtool_stat_names' too small (32 vs 704)
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Jakub Kicinski says:

====================
nfp: control processor DMA support and RJ45

This series starts with adding support for reporting twisted pair
media type in ethtool.

Remaining patches add support for using DMA with the control/service
processor.  Currently we always copy the command data into card's
memory.  DMA support allows us to have the NSP read the data from
host memory by itself.  Unfortunately, the FW loading and flashing
cannot directly map the buffers for DMA because (a) the firmware
ABI returns const buffers, and (b) the buffers may be vmalloc()ed
in many mysterious/unmappable way.  So just bite the bullet -
allocate new host buffer for the command and copy.

As Dirk explains, the NSP now supports updating all FWs at once
which means the max flashing time grew significantly.  He bumps
the max wait to avoid timeouts.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

The management firmware now supports being passed a bundle with
multiple components to be stored in flash at once. This makes it
easier to update all components to a known state with a single
user command, however, this also has the potential to increase
the time required to perform the update significantly.

The management firmware only updates the components out of a bundle
which are outdated, however, we need to make sure we can handle
the absolute worst case where a CPLD update can take a long time
to perform.

We set a very conservative total timeout of 900s which already
adds a contingency.
Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Newer versions of NSP can access host memory.  Simplest access
type requires all data to be in one contiguous area.  Since we
don't have the guarantee on where callers of the NSP ABI will
allocate their buffers we allocate a bounce buffer and copy
the data in and out.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

DMA version of NSP communication is coming, move the code which
copies data into the NFP buffer into a separate function.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

NSP expresses the buffer size in MB and 4 kB blocks.  For small
buffers the kB part may make a difference, so count it in.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add support for reporting twisted pair port type.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The comphy driver for Armada 3700 by Miquèl Raynal (which is currently
in linux-next) does not actually set comphy mode when phy_set_mode_ext
is called. The mode is set at next call of phy_power_on.

Update the driver to semantics similar to mvpp2: helper
mvneta_comphy_init sets comphy mode and powers it on.
When mode is to be changed in mvneta_mac_config, first power the comphy
off, then call mvneta_comphy_init (which sets the mode to new one).

Only do this when new mode is different from old mode.

This should also work for Armada 38x, since in that comphy driver
methods power_on and power_off are unimplemented.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>

Claudiu Manoil says:

====================
enetc: Add mdio support and device tree nodes

This is the missing part to enable PCI probing of the ENETC ethernet
ports on the LS1028A SoC and external traffic on the LS1028A RDB board.
It's one of the first items on the TODO list for the recently merged
ENETC ethernet driver.

v3: Add DT bindings doc for ENETC connections
v4: none
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Define connection bindings (external PHY connections and internal links)
for the ENETC on-chip ethernet controllers.
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Each ENETC PF has its own MDIO interface, the corresponding
MDIO registers are mapped in the ENETC's Port register block.
The current patch adds a driver for these PF level MDIO buses,
so that each PF can manage directly its own external link.
Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>