Introduce objects for line cards and an infrastructure around that.
Use devlink_linecard_create/destroy() to register the line card with
devlink core. Implement provisioning ops with a list of supported
line cards.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since SwitchX-2 support was removed in commit b0d80c01 ("mlxsw:
Remove Mellanox SwitchX-2 ASIC support"), all the ASICs supported by
mlxsw support the resource query command.

Therefore, remove the resource query check and always query resources
from the device.
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Reviewed-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently there are several different features defined in 'mlxsw_driver'
for trap support validation. There is no reason to have dedicated
features for specific traps. Perform validation of all of them by
testing feature 'MLXSW_BUS_F_TXRX'.

Remove trap capability validation from 'core_env.c' which is redundant
after validation has been added to mlxsw_core_trap_register().
Signed-off-by: NVadim Pasternak <vadimp@nvidia.com>
Reviewed-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove obsolete API mlxsw_core_res_query_enabled(), which is only
relevant for end-of-life SwitchX-2 ASICs. Support for these ASICs was
removed in commit b0d80c01 ("mlxsw: Remove Mellanox SwitchX-2 ASIC
support").
Signed-off-by: NVadim Pasternak <vadimp@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For event traps which are used in core, avoid having a separate trap
group for each event. Instead of that introduce a single core event trap
group and use it for all event traps.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

These functions belong to core.c alongside the functions that
register/unregister a single trap. Move it there. Make the functions
possibly usable by other parts of mlxsw code.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Reviewed-by: NPetr Machata <petrm@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Instead of initializing the trap groups used by core in spectrum.c
over op, do it directly in core.c
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Reviewed-by: NPetr Machata <petrm@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Currently, local_port field is saved as u8, which means that maximum 256
ports can be used.

As preparation for Spectrum-4, which will support more than 256 ports,
local_port field should be extended.

Save local_port as u16 to allow use of additional ports.
Signed-off-by: NAmit Cohen <amcohen@nvidia.com>
Reviewed-by: NPetr Machata <petrm@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

After the previous patch, the switch driver is always initialized last,
making this function redundant.

Remove it.
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Newly introduced PMTDB register is there to provide all needed info
about particular requested port split configuration. Use it instead of
figuring the info out manually in the driver.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Packets that are mirrored / sampled to the CPU have extra metadata
encoded in their corresponding Completion Queue Element (CQE). Retrieve
this metadata from the CQE and set it in the skb control block so that
it could be accessed by the switch driver (i.e., 'mlxsw_spectrum').
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Reviewed-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Next patch will need to encode more Rx metadata in the skb control
block, so create a dedicated field for it and move the cookie index
there.
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Reviewed-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The switch ASIC has a limited capacity of physical ('flavour physical'
in devlink terminology) ports that it can support. While each system is
brought up with a different number of ports, this number can be
increased via splitting up to the ASIC's limit.

Expose physical ports as a devlink resource so that user space will have
visibility to the maximum number of ports that can be supported and the
current occupancy.

In addition, add a "Generic Resources" section in devlink-resource
documentation so the different drivers will be aligned by the same resource
name when exposing to user space.
Signed-off-by: NDanielle Ratson <danieller@nvidia.com>
Reviewed-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Set a profile option to instruct FW to use 1/2 of KVH for XLT cache, not
the whole one.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Use the info stored in the bus_info struct about the eXtended mezanine
connected ports and don't expose them.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

The output of boardinfo command was extended to contain information
about XM. Indicates if is present and in case it is, tells which
localports are used for the connection. So parse this info and store it
in bus_info passed up to the driver.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

MTWE (Management Temperature Warning Event) is triggered when module's
temperature is higher than its threshold.

Register for MTWE events and increase the module's overheat counter when
its corresponding sensor goes above the configured threshold.
Signed-off-by: NAmit Cohen <amcohen@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Initialize an array that stores per-module overheat state and a counter
indicating how many times the module was in overheat state.

Export a function to query the counter according to module number.
Will be used later on by the switch driver (i.e., mlxsw_spectrum) to expose
module's overheat counter as part of ethtool statistics.

Initialize mlxsw_env after driver initialization to be able to query
number of modules from MGPIR register.
Signed-off-by: NAmit Cohen <amcohen@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Introduce devlink health reporter to report FW fatal events. Implement
the event listener using MFDE trap and enable the events to be
propagated using MFGD register configuration.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As the firmware flashing is not specific to Spectrum, move the code to
core.c and avoid one op call and 2 exported symbols. Also, this allows
to do flash before call of driver->init function and possibly do other
core calls in between.

Do some small renaming here and there on the way to be consistent with
the rest of core.c code.
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As previously explained, packets that are dropped due to buffer related
reasons (e.g., tail drop, early drop) can be mirrored to the CPU port.
These packets are then trapped with one of the "mirror session" traps
and their CQE includes the reason for which the packet was mirrored.

Register with devlink a new trap, early_drop, and initialize the
corresponding Rx listener with the appropriate mirror reason. Return an
error in case user tries to change the traps' action, as this is not
supported.

Since Spectrum-1 does not support these traps, the above is only done
for Spectrum-2 onwards.
Signed-off-by: NPetr Machata <petrm@mellanox.com>
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A later patch will refuse to set the action of certain traps in mlxsw
and also to change the policer binding of certain groups. Pass extack so
that failure could be communicated clearly to user space.
Reviewed-by: NPetr Machata <petrm@mellanox.com>
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NPetr Machata <petrm@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The Rx listener abstraction allows the switch driver (e.g.,
mlxsw_spectrum) to register a function that is called when a packet is
received (trapped) for a specific reason.

Up until now, the Rx listener lookup was solely based on the trap
identifier. However, when a packet is mirrored to the CPU the trap
identifier merely indicates that the packet was mirrored, but not why it
was mirrored. This makes it impossible for the switch driver to register
different Rx listeners for different mirror reasons.

Solve this by allowing the switch driver to register a Rx listener with
a mirror reason and by extending the Rx listener lookup to take the
mirror reason into account.
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NPetr Machata <petrm@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In case the mirror reason is valid, retrieve it into the Rx information
so that it could be used during listener lookup in a later patch.
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NPetr Machata <petrm@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently, port attributes like flavour, port number and whether the port
was split are set when initializing a port.

Set the split ability of the port as well, based on port_mapping->width
field and split attribute of devlink port in spectrum, so that it could be
easily passed to devlink in the next patch.
Signed-off-by: NDanielle Ratson <danieller@mellanox.com>
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently, port attributes like flavour, port number and whether the
port was split are set when initializing a port.

Set the number of lanes of the port as well so that it could be easily
passed to devlink in the next patch.
Signed-off-by: NDanielle Ratson <danieller@mellanox.com>
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Implement support for setting of packet trap group parameters by
invoking the trap_group_init() callback with the new parameters.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Register supported packet trap policers with devlink and implement
callbacks to change their parameters and read their counters.

Prevent user space from passing invalid policer parameters down to the
device by checking their validity and communicating the failure via an
appropriate extack message.

v2:
* Remove the max/min validity checks from __mlxsw_sp_trap_policer_set()
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In case the received packet comes in due to one of ACL discard traps,
take the user_def_val_orig_pkt_len field from CQE and store it
in skb->cb as ACL cookie index.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Extend the mlxsw_listener struct to contain trap group for disabled
traps too. Rename the original "trap_group" item to "en_trap_group" as
it represents enabled state. Let both groups be the same for MLXSW_RXL
however extend MLXSW_RXL_DIS to register separate groups for enable and
disable.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For source traps, the "thin policer" is going to be used in order
to reduce the amount of trapped packets to minimum. However, there
will be still small number of packets coming in that need to be dropped
in the driver. Allow to enable/disable rx_listener related to specific
trap in order to prevent unwanted packets to go up the stack.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Rename function mlxsw_core_trap_action_set() to
mlxsw_core_trap_state_set() and pass bool enabled instead of action.
Figure out the action according to the enabled state there.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Introduce a new macro MLXSW_RXL_DIS that allows to register listeners
as disabled. That allows that from now on, the "action" can be
understood always as "enabled action" and "unreg_action" as "disabled
action". Rename them and treat them accordingly.

Use the new macro for defining drops in spectrum_trap.c.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

During packet receive, only the first matching RX listener
in rx_listener_list is going to get the packet. So there is no
meaning in registering two equal listeners with different privs.
Remove priv from equality comparison and disable possibility
of doing it.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

No need to initialize to false, so remove it.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

No need for these two flags to be bool. Covert them to bits of u8.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The dummy name for union is no longer needed, remove it.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Commit 0791051c ("mlxsw: core: Create a generic function to
register / unregister traps") moved this field to struct mlxsw_listener,
but forgot to remove it from struct mlxsw_rx_listener.
Remove the unused field.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In case the firmware had an error while processing EMADs, it can send back
an ASCII string with the reason using EMAD string TLV.

This patch adds the support for using EMAD string TLV. In case of an error,
reports the reason using devlink hwerr tracepoint.
Signed-off-by: NShalom Toledo <shalomt@mellanox.com>
Acked-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently the max module width is hard-coded according to ASIC type.
That is not entirely correct, as the max module width might differ
per-board. Use PMTM register to query FW for maximal width of a module.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>