The prototypes are now generated, remove the old ones.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231021112711.660606-10-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
All remaining doit and dumpit netlink callback functions are going to be
used by generated split ops. They expect certain name format. Rename the
callback to be aligned with generated names.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231021112711.660606-8-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In mlx5, there is a devlink instance created for PCI device. Also, one
separate devlink instance is created for auxiliary device that
represents the netdev of uplink port. This relation is currently
invisible to the devlink user.
Benefit from the rel infrastructure and allow for nested devlink
instance to set the relationship for the nested-in devlink instance.
Note that there may be many nested instances, therefore use xarray to
hold the list of rel_indexes for individual nested instances.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is a bit tricky to maintain relationship between devlink objects and
nested devlink instances due to following aspects:
1) Locking. It is necessary to lock the devlink instance that contains
the object first, only after that to lock the nested instance.
2) Lifetimes. Objects (e.g devlink port) may be removed before
the nested devlink instance.
3) Notifications. If nested instance changes (e.g. gets
registered/unregistered) the nested-in object needs to send
appropriate notifications.
Resolve this by introducing an xarray that holds 1:1 relationships
between devlink object and related nested devlink instance.
Use that xarray index to get the object/nested devlink instance on
the other side.
Provide necessary helpers:
devlink_rel_nested_in_add/clear() to add and clear the relationship.
devlink_rel_nested_in_notify() to call the nested-in object to send
notifications during nested instance register/unregister/netns
change.
devlink_rel_devlink_handle_put() to be used by nested-in object fill
function to fill the nested handle.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As the next patch is going to call this helper with need to fill another
type of nested attribute, pass it over function arg.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As the next patch is going to call this helper out of the linecard.c,
move to netlink.c.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of exposing linecard struct, expose a simple helper to get the
linecard index, which is all is needed outside linecard.c. Move the
linecard struct to linecard.c and keep it private similar to the rest of
the devlink objects.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
At last, move the last bits out of leftover.c,
the devlink_notify_register/unregister() functions to dev.c
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230828061657.300667-16-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since both dpipe and resource code is using this helper, in preparation
for code split to separate files, move
devlink_dpipe_send_and_alloc_skb() helper into netlink.c. Rename it on
the way.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230828061657.300667-5-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As the commands are already defined in split ops, remove them
from small ops.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-10-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Remove the duplicate temporary netlink callback prototype as the
generated ones are already in place.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-9-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In order to easily set NLM_F_DUMP_FILTERED for partial dumps, pass the
flags as an arg of dump_one() callback. Currently, it is always
NLM_F_MULTI.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-7-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Introduce dumpit callbacks for generated split ops. Have them
as a thin wrapper around iteration function and allow to pass dump_one()
function pointer directly without need to store in devlink_cmd structs.
Note that the function prototypes are temporary until the generated ones
will replace them in a follow-up patch.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-6-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Rename netlink doit callback functions for the commands that do
implement per-instance dump to match the generated names that are going
to be introduce in the follow-up patch.
Note that the function prototypes are temporary until the generated ones
will replace them in a follow-up patch.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-5-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Define port handling helpers what don't rely on internal_flags.
Have __devlink_nl_pre_doit() to accept the flags as a function arg and
make devlink_nl_pre_doit() a wrapper helper function calling it.
Introduce new helpers devlink_nl_pre_doit_port() and
devlink_nl_pre_doit_port_optional() to be used by split ops in follow-up
patch.
Note that the function prototypes are temporary until the generated ones
will replace them in a follow-up patch.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-4-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
No need to give the rate any special treatment in netlink attributes
parsing, as unlike for ports, there is only a couple of commands
benefiting from that.
Remove DEVLINK_NL_FLAG_NEED_RATE*, make pre_doit() callback simpler
by moving the rate attributes parsing to rate_*_doit() ops.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-3-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
No need to give the linecards any special treatment in netlink attribute
parsing, as unlike for ports, there is only a couple of commands
benefiting from that.
Remove DEVLINK_NL_FLAG_NEED_LINECARD, make pre_doit() callback simpler
by moving the linecard attribute parsing to linecard_[gs]et_doit() ops.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230811155714.1736405-2-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Do the switch and use generated split ops for get and info_get commands.
Remove those from small ops array.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-13-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Put the newly added generated header to the include list. Remove the
duplicated temporary function prototypes.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-12-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
To be prepared for the follow-up generated split ops addition,
make the functions devlink_nl_pre_doit() and devlink_nl_post_doit()
usable outside of netlink.c. Introduce temporary prototypes which are
going to be removed once the generated header will be included.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-9-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Introduce couple of dumpit callbacks for generated split ops. Have them
as a thin wrapper around iteration function and allow to pass dump_one()
function pointer directly without need to store in devlink_cmd structs.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-8-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The generated names of the doit netlink callback are missing "cmd" in
their names. Change names to be ready to switch to generated split ops
header.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-7-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In order to avoid name collision with the generated split ops array
which is going to be introduced as a follow-up patch, rename
the existing ops array to devlink_nl_small_ops.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-6-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The commit 565b4824c3 ("devlink: change port event netdev notifier
from per-net to global") changed original per-net notifier to be
per-devlink instance. That fixed the issue of non-receiving events
of netdev uninit if that moved to a different namespace.
That worked fine in -net tree.
However, later on when commit ee75f1fc44 ("net/mlx5e: Create
separate devlink instance for ethernet auxiliary device") and
commit 72ed5d5624 ("net/mlx5: Suspend auxiliary devices only in
case of PCI device suspend") were merged, a deadlock was introduced
when removing a namespace with devlink instance with another nested
instance.
Here there is the bad flow example resulting in deadlock with mlx5:
net_cleanup_work -> cleanup_net (takes down_read(&pernet_ops_rwsem) ->
devlink_pernet_pre_exit() -> devlink_reload() ->
mlx5_devlink_reload_down() -> mlx5_unload_one_devl_locked() ->
mlx5_detach_device() -> del_adev() -> mlx5e_remove() ->
mlx5e_destroy_devlink() -> devlink_free() ->
unregister_netdevice_notifier() (takes down_write(&pernet_ops_rwsem)
Steps to reproduce:
$ modprobe mlx5_core
$ ip netns add ns1
$ devlink dev reload pci/0000:08:00.0 netns ns1
$ ip netns del ns1
Resolve this by converting the notifier from per-devlink instance to
a static one registered during init phase and leaving it registered
forever. Use this notifier for all devlink port instances created
later on.
Note what a tree needs this fix only in case all of the cited fixes
commits are present.
Reported-by: Moshe Shemesh <moshe@nvidia.com>
Fixes: 565b4824c3 ("devlink: change port event netdev notifier from per-net to global")
Fixes: ee75f1fc44 ("net/mlx5e: Create separate devlink instance for ethernet auxiliary device")
Fixes: 72ed5d5624 ("net/mlx5: Suspend auxiliary devices only in case of PCI device suspend")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230510144621.932017-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Now that all devlink health callbacks and related code are in file
health.c move common health functions and devlink_health_reporter struct
to be local in health.c file.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink health report test callback from leftover.c to health.c. No
functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink health report dump callbacks and related code from
leftover.c to health.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Devlink fmsg (formatted message) is used by devlink health diagnose,
dump and drivers which support these devlink health callbacks.
Therefore, move devlink fmsg helpers and related code to file health.c.
Move devlink health diagnose to file health.c. No functional change in
this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink health report helper and recover callback and related code
from leftover.c to health.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink health get and set callbacks and related code from
leftover.c to health.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink health reporter create/destroy and related dev code to new
file health.c. This file shall include all callbacks and functionality
that are related to devlink health.
In addition, fix kdoc indentation and make reporter create/destroy kdoc
more clear. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Loose the linked list for params and use xarray instead.
Note that this is required to be eventually possible to call
devl_param_driverinit_value_get() without holding instance lock.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driverinit param purpose is to serve the driver during init/reload
time to provide a value, either default or set by user.
Make sure that driver does not read value updated by user before the
reload is performed. Hold the new value in a separate struct and switch
it during reload.
Note that this is required to be eventually possible to call
devl_param_driverinit_value_get() without holding instance lock.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move devlink dev selftest callbacks and related code from leftover.c to
file dev.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As all users of the struct devlink_info_req are already in dev.c, move
this struct from devl_internal.c to be local in dev.c.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink dev flash callbacks, helpers and other related code from
leftover.c to dev.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink dev info callbacks, related drivers helpers functions and
other related code from leftover.c to dev.c. No functional change in
this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink dev eswitch callbacks and related code from leftover.c to
file dev.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink dev reload callback and related code from leftover.c to
file dev.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move devlink dev get and dump callbacks and related dev code to new file
dev.c. This file shall include all callbacks that are specific on
devlink dev object.
No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
