Use xdp_prog member of data path struct to carry the xdp_prog to
alloc/free free functions.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Move the mtu member from ring set to data path struct.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use fl_bufsz member of data path struct to carry desired size of
free list entries.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Instead of passing variables around use dp to store number of tx rings
for the stack and number of IRQ vectors.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Make callers of nfp_net_ring_reconfig() pass newly allocated data
path structure.  We will gradually make use of that structure
instead of passing parameters around to all the allocation functions.
This commit adds allocation and propagation of new data path struct,
no parameters are converted, yet.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Control BAR pointer is used to unmask interrupts so it should be
in the first cacheline of adapter structure.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Move all data path information into a separate structure.  This way
we will be able to allocate new data path with all new rings etc.
and swap it in easily.

No functional changes.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds the configuration of the AVB Credit-Based Shaper.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch prepares mac debug dump for multiple queues.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch prepares mac irq status treatment for multiple queues.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adapts flow_ctrl function to prepare it for multiple queues.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds the functionality of RX queue to dma channel mapping
based on configuration.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch introduces the enabling of RX queues as DCB or as AVB based
on configuration.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds TX queues weight programming.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds the RX and TX scheduling algorithms programming.
It introduces the multiple queues configuration function
(stmmac_mtl_configuration) in stmmac_main.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds the multiple queues configuration in the Device Tree.
It was also created a set of structures to keep the RX and TX queues
configurations to be used in the driver.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The NVIDIA Tegra186 SoC contains an instance of the Synopsys DWC
ethernet QOS IP core. The binding that it uses is slightly different
from existing ones because of the integration (clocks, resets, ...).
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Split out the binding specific parts of ->probe() and ->remove() to
enable the driver to support variants of the binding. This is useful in
order to keep backwards-compatibility while making it easy for a sub-
driver to deal only with the updated bindings rather than having to add
compatibility quirks all over the place.
Reviewed-by: NMikko Perttunen <mperttunen@nvidia.com>
Reviewed-By: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Program the receive queue size based on the RX FIFO size and enable
hardware flow control for large FIFOs.
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

New version of this core encode the FIFO sizes in one of the feature
registers. Use these sizes as default, but still allow device tree to
override them for backwards compatibility.
Reviewed-by: NMikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When DMA mapping an SKB fragment, the mapping must be checked for
errors, otherwise the DMA debug code will complain upon unmap.
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

clk_prepare_enable() and clk_disable_unprepare() for this clock aren't
properly balanced, which can trigger a WARN_ON() in the common clock
framework.
Reviewed-By: NJoao Pinto <jpinto@synopsys.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If an error occurs while opening the device, make sure to disable the
PTP reference clock.
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If an error occurs while opening the device, make sure that both the TX
timer and the PHY are properly cleaned up.
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There aren't currently any users of the "clk_ptp_ref", but there are
other references to "ptp_ref", so I'm leaning towards considering that a
typo. Fix it.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Optimize DMA in NUMA systems by allocating memory from NUMA node that NIC
is plugged in to; DMA will no longer cross NUMA nodes.  If NIC IRQs are
pinned to a local CPU, that CPU's access to the DMA'd data is also
optimized.
Signed-off-by: NVSR Burru <veerasenareddy.burru@cavium.com>
Signed-off-by: NFelix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: NRaghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: NSatanand Burla <satananda.burla@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.
Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.
Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.
Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.
Signed-off-by: NPhilippe Reynes <tremyfr@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When the abort mechanism is invoked it binds the first virtual router
(VR) to an LPM tree and inserts a default route to direct packets to the
CPU.

With VRFs, we can have router interfaces (RIFs) bound to multiple VRs,
so we need to make sure packets are trapped from all VRs and not just
the first one.

Upon abort invocation, bind all active VRs to the same LPM tree and
insert a default route in each.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Up until now we implicitly associated all the router interfaces (RIFs)
with the first virtual router (VR). This must be changed in order to
enable VRF offload. Otherwise, a packet received via a VRF slave would
do a FIB lookup in the same table used by other VRFs.

Instead, bind the RIF to a VR according to the table where FIB lookup
should be performed for packets received via the RIF.

Currently, we only care about the MAIN and LOCAL tables (which we squash
together).
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A virtual router (VR) is an entity within the device to which routing
tables and interfaces can be bound to. It can be used to implement VRFs.

In the initial implementation we associated the VR with a specific
protocol (e.g., IPv4) and an LPM tree. However, this isn't really
accurate, as the same VR can be used for both IPv4 and IPv6 traffic, by
binding a different LPM tree to a {VR, Proto} pair.

This patch aims to restructure the VR code according to the above logic,
so that VRs are more accurately represented by the driver's data
structures. The main motivation behind this change is to prepare the
driver for VRF offload.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When looking for a new LPM tree we should always consider all the unused
trees. It doesn't matter if the new tree is required due to changes in
currently used prefixes inside an existing routing table or because a
route was inserted into an empty table.

Both cases are functionally identical and therefore should be treated
the same.

When looking for a new LPM tree, consider all unused trees and don't
reserve trees for specific cases.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The inetaddr notification block is currently implemented in the main
driver file, but this isn't really appropriate, as it mainly creates and
destroys router interfaces (RIFs) which belong with the rest of the
router code.

This will become even more apparent later on when we'll need to bind
these RIFs to virtual routers according to the VRF's table.

Structure the driver better and prevent unnecessary function exports by
moving the RIF related code with the rest of the router code.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Allow 'unreachable', 'blackhole' and 'prohibit' route types to be
programmed into the device by sending any packet hitting them to the
CPU.

This is needed so that users will be able to program a default route
into the VRF's table, thereby preventing lookup from leaking to other
tables.

Audit the code paths to make sure we don't rely on the presence of a
nexthop netdev, as it doesn't exist for above mentioned route types.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We only use the RIF reference count to determine when the last IP
address was removed, but instead we can just test 'in_dev->ifa_list'.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When a VLAN device is configured on top of a LAG device (f.e.,
bond0.10), a vPort is created on top of each of the LAG's slaves and its
'dev' pointer is set to the VLAN device.

This is in contrast to the implicit PVID vPort (representing 'bond0'),
whose 'dev' pointer keeps pointing to the port netdev itself (f.e.,
'sw1p1').

Make both cases consistent by setting their 'dev' pointer to the actual
netdev they represent. Either the LAG device itself (in the case of the
PVID vPort) or the VLAN device on top of it.

This will later allow us to more easily understand for which netdev we
should create the router interface (RIF) upon enslavement to a VRF
master.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When an upper device is configured on top of a vPort we make sure it's a
bridge master during PRECHANGEUPPER and fail otherwise. Therefore, when
CHANGEUPPER is later received we don't bother checking the upper's type.

Make the code more extendable in preparation for VRF uppers, by checking
the upper's type.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We're going to allow bridges stacked on top of port netdevs to be
enslaved to a VRF, but for now, only VLAN uppers of the VLAN-aware
bridge are supported.

Sanitize any other bridge upper. This is consistent with the way we
sanitize port netdevs' uppers.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>