Commit Graph

74 Commits

Author SHA1 Message Date
Paolo Abeni
fce10282a0 devlink: drop leftover duplicate/unused code
The recent merge from net left-over some unused code in
leftover.c - nomen omen.

Just drop the unused bits.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-20 11:38:35 +00:00
David S. Miller
675f176b4d Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
Some of the devlink bits were tricky, but I think I got it right.

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-17 11:06:39 +00:00
Moshe Shemesh
12af29e779 devlink: Move health common function to health file
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>
2023-02-15 19:15:44 -08:00
Moshe Shemesh
c9311ee13f devlink: Move devlink health test to health file
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>
2023-02-15 19:15:44 -08:00
Moshe Shemesh
7004c6c457 devlink: Move devlink health dump to health file
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>
2023-02-15 19:15:44 -08:00
Moshe Shemesh
a929df7fd9 devlink: Move devlink fmsg and health diagnose to health file
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>
2023-02-15 19:15:44 -08:00
Moshe Shemesh
55b9b24968 devlink: Move devlink health report and recover to health file
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>
2023-02-15 19:15:44 -08:00
Moshe Shemesh
db6b5f3ec4 devlink: Move devlink health get and set code to health file
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>
2023-02-15 19:15:44 -08:00
Moshe Shemesh
bfd4e6a5db devlink: health: Fix nla_nest_end in error flow
devlink_nl_health_reporter_fill() error flow calls nla_nest_end(). Fix
it to call nla_nest_cancel() instead.

Note the bug is harmless as genlmsg_cancel() cancel the entire message,
so no fixes tag added.

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>
2023-02-15 19:15:44 -08:00
Moshe Shemesh
b4740e3a81 devlink: Split out health reporter create code
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>
2023-02-15 19:15:44 -08:00
Jiri Pirko
2edd925704 devlink: don't allow to change net namespace for FW_ACTIVATE reload action
The change on network namespace only makes sense during re-init reload
action. For FW activation it is not applicable. So check if user passed
an ATTR indicating network namespace change request and forbid it.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230213115836.3404039-1-jiri@resnulli.us
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-14 14:04:21 +01:00
Jiri Pirko
6b4bfa43ce devlink: add forgotten devlink instance lock assertion to devl_param_driverinit_value_set()
Driver calling devl_param_driverinit_value_set() has to hold devlink
instance lock while doing that. Put an assertion there.

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>
2023-02-13 09:49:14 +00:00
Jiri Pirko
280f7b2adc devlink: allow to call devl_param_driverinit_value_get() without holding instance lock
If the driver maintains following basic sane behavior, the
devl_param_driverinit_value_get() function could be called without
holding instance lock:

1) Driver ensures a call to devl_param_driverinit_value_get() cannot
   race with registering/unregistering the parameter with
   the same parameter ID.
2) Driver ensures a call to devl_param_driverinit_value_get() cannot
   race with devl_param_driverinit_value_set() call with
   the same parameter ID.
3) Driver ensures a call to devl_param_driverinit_value_get() cannot
   race with reload operation.

By the nature of params usage, these requirements should be
trivially achievable. If the driver for some off reason
is not able to comply, it has to take the devlink->lock while
calling devl_param_driverinit_value_get().

Remove the lock assertion and add comment describing
the locking requirements.

This fixes a splat in mlx5 driver introduced by the commit
referenced in the "Fixes" tag.

Lore: https://lore.kernel.org/netdev/719de4f0-76ac-e8b9-38a9-167ae239efc7@amd.com/
Reported-by: Kim Phillips <kim.phillips@amd.com>
Fixes: 075935f0ae ("devlink: protect devlink param list by 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>
Tested-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 09:49:14 +00:00
Jiri Pirko
a72e17b452 devlink: convert param list to xarray
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>
2023-02-13 09:49:14 +00:00
Jiri Pirko
fbcf938150 devlink: use xa_for_each_start() helper in devlink_nl_cmd_port_get_dump_one()
As xarray has an iterator helper that allows to start from specified
index, use this directly and avoid repeated iteration from 0.

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>
2023-02-13 09:49:14 +00:00
Jiri Pirko
94ba1c316b devlink: fix the name of value arg of devl_param_driverinit_value_get()
Probably due to copy-paste error, the name of the arg is "init_val"
which is misleading, as the pointer is used to point to struct where to
store the current value. Rename it to "val" and change the arg comment
a bit on the way.

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>
2023-02-13 09:49:14 +00:00
Jiri Pirko
afd888c3e1 devlink: make sure driver does not read updated driverinit param before reload
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>
2023-02-13 09:49:14 +00:00
Jiri Pirko
fa2f921f3b devlink: don't use strcpy() to copy param value
No need to treat string params any different comparing to other types.
Rely on the struct assign to copy the whole struct, including the
string.

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>
2023-02-13 09:49:14 +00:00
Jacob Keller
6d86bb0a5c devlink: stop using NL_SET_ERR_MSG_MOD
NL_SET_ERR_MSG_MOD inserts the KBUILD_MODNAME and a ':' before the actual
extended error message. The devlink feature hasn't been able to be compiled
as a module since commit f4b6bcc700 ("net: devlink: turn devlink into a
built-in").

Stop using NL_SET_ERR_MSG_MOD, and just use the base NL_SET_ERR_MSG. This
aligns the extended error messages better with the NL_SET_ERR_MSG_ATTR
messages as well.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-13 09:37:29 +00:00
Jakub Kicinski
8697a258ae Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
net/devlink/leftover.c / net/core/devlink.c:
  565b4824c3 ("devlink: change port event netdev notifier from per-net to global")
  f05bd8ebeb ("devlink: move code to a dedicated directory")
  687125b579 ("devlink: split out core code")
https://lore.kernel.org/all/20230208094657.379f2b1a@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-09 12:25:40 -08:00
Moshe Shemesh
cb6b2e11a4 devlink: Fix memleak in health diagnose callback
The callback devlink_nl_cmd_health_reporter_diagnose_doit() miss
devlink_fmsg_free(), which leads to memory leak.

Fix it by adding devlink_fmsg_free().

Fixes: e994a75fb7 ("devlink: remove reporter reference counting")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/1675698976-45993-1-git-send-email-moshe@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-07 20:21:33 -08:00
Moshe Shemesh
7c976c7cfc devlink: Move devlink dev selftest code to dev
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>
2023-02-03 19:25:26 -08:00
Moshe Shemesh
ec4a0ce92e devlink: Move devlink_info_req struct to be local
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>
2023-02-03 19:25:26 -08:00
Moshe Shemesh
a13aab66cb devlink: Move devlink dev flash code to dev
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>
2023-02-03 19:25:26 -08:00
Moshe Shemesh
d60191c46e devlink: Move devlink dev info code to dev
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>
2023-02-03 19:25:26 -08:00