Commit Graph

1324979 Commits

Author SHA1 Message Date
Daniel Machon
9b8d70ecfe net: sparx5: only return PCS for modes that require it
The RGMII ports have no PCS to configure. Make sure we only return the
PCS for port modes that require it.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-5-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:57:55 -08:00
Daniel Machon
d9450934f9 net: sparx5: skip low-speed configuration when port is RGMII
When doing a port config, we configure low-speed port devices, among
other things. We have a check to ensure, that the device is indeed a
low-speed device, an not a high-speed device. Add an additional check,
to ensure that the device is not an RGMII device.

Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-4-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:57:54 -08:00
Daniel Machon
05bda8a1bd net: sparx5: use is_port_rgmii() throughout
Now that we can check if a given port is an RGMII port, use it in the
following cases:

 - To set RGMII PHY modes for RGMII port devices.

 - To avoid checking for a SerDes node in the devicetree, when the port
   is an RGMII port.

 - To bail out of sparx5_port_init() when the common configuration is
   done.

Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-3-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:57:54 -08:00
Daniel Machon
dd2baee108 net: sparx5: add function for RGMII port check
The lan969x device contains two RGMII port interfaces, sitting at port
28 and 29. Add function: is_port_rgmii() to the match data ops, that
checks if a given port is an RGMII port or not. For Sparx5, this
function always returns false.

Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-2-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:57:54 -08:00
Daniel Machon
c71b59690a net: sparx5: do some preparation work
The sparx5_port_init() does initial configuration of a variety of
different features and options for each port. Some are shared for all
types of devices, some are not. As it is now, common configuration is
done after configuration of low-speed devices. This will not work when
adding RGMII support in a subsequent patch.

In preparation for lan969x RGMII support, move a block of code, that
configures 2g5 devices, down. This ensures that the configuration common
to all devices is done before configuration of 2g5, 5g, 10g and 25g
devices.

Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20241220-sparx5-lan969x-switch-driver-4-v5-1-fa8ba5dff732@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:57:53 -08:00
Jakub Kicinski
847cf3b9c3 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
ixgbe, ixgbevf: Add support for Intel(R) E610 device

Piotr Kwapulinski says:

Add initial support for Intel(R) E610 Series of network devices. The E610
is based on X550 but adds firmware managed link, enhanced security
capabilities and support for updated server manageability.

* '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  ixgbevf: Add support for Intel(R) E610 device
  PCI: Add PCI_VDEVICE_SUB helper macro
  ixgbe: Enable link management in E610 device
  ixgbe: Clean up the E610 link management related code
  ixgbe: Add ixgbe_x540 multiple header inclusion protection
  ixgbe: Add support for EEPROM dump in E610 device
  ixgbe: Add support for NVM handling in E610 device
  ixgbe: Add link management support for E610 device
  ixgbe: Add support for E610 device capabilities detection
  ixgbe: Add support for E610 FW Admin Command Interface
====================

Link: https://patch.msgid.link/20241220201521.3363985-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:46:49 -08:00
Kory Maincent
4c61d809cf net: ethtool: Fix suspicious rcu_dereference usage
The __ethtool_get_ts_info function can be called with or without the
rtnl lock held. When the rtnl lock is not held, using rtnl_dereference()
triggers a warning due to the lack of lock context.

Add an rcu_read_lock() to ensure the lock is acquired and to maintain
synchronization.

Reported-by: syzbot+a344326c05c98ba19682@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/676147f8.050a0220.37aaf.0154.GAE@google.com/
Fixes: b9e3f7dc9e ("net: ethtool: tsinfo: Enhance tsinfo to support several hwtstamp by net topology")
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241220083741.175329-1-kory.maincent@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:38:46 -08:00
Jakub Kicinski
3f8f2e93cd Merge branch 'eth-fbnic-support-basic-rss-config-and-setting-channel-count'
Jakub Kicinski says:

====================
eth: fbnic: support basic RSS config and setting channel count

Add support for basic RSS config (indirection table, key get and set),
and changing the number of channels.

  # ./ksft-net-drv/run_kselftest.sh -t drivers/net/hw:rss_ctx.py
  TAP version 13
  1..1
  # timeout set to 0
  # selftests: drivers/net/hw: rss_ctx.py
  # KTAP version 1
  # 1..15
  # ok 1 rss_ctx.test_rss_key_indir
  # ok 2 rss_ctx.test_rss_queue_reconfigure
  # ok 3 rss_ctx.test_rss_resize
  # ok 4 rss_ctx.test_hitless_key_update

  .. the rest of the tests are for additional contexts so they
  get skipped..

The slicing of the patches (and bugs) are mine, but I'm keeping
Alex as the author on the patches where he wrote 100% of the code.
====================

Link: https://patch.msgid.link/20241220025241.1522781-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:59 -08:00
Jakub Kicinski
52dc722db0 eth: fbnic: support ring channel set while up
Implement the channel count changes. Copy the netdev priv,
allocate new channels using it. Stop, swap, start.
Then free the copy of the priv along with the channels it
holds, which are now the channels that used to be on the
real priv.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241220025241.1522781-11-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:56 -08:00
Jakub Kicinski
3a481cc726 eth: fbnic: support ring channel get and set while down
Trivial implementation of ethtool channel get and set. Set is only
supported when device is closed, next patch will add code for
live reconfig.

Asymmetric configurations are supported (combined + extra Tx or Rx),
so are configurations with independent IRQs for Rx and Tx.
Having all 3 NAPI types (combined, Tx, Rx) is not supported.

We used to only call fbnic_reset_indir_tbl() during init.
Now that we call it after device had been register must
be careful not to override user config.

Link: https://patch.msgid.link/20241220025241.1522781-10-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:56 -08:00
Alexander Duyck
557d02238e eth: fbnic: centralize the queue count and NAPI<>queue setting
To simplify dealing with RTNL_ASSERT() requirements further
down the line, move setting queue count and NAPI<>queue
association to their own helpers.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/20241220025241.1522781-9-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:56 -08:00
Jakub Kicinski
3a856ab347 eth: fbnic: add IRQ reuse support
Change our method of swapping NAPIs without disturbing existing config.
This is primarily needed for "live reconfiguration" such as changing
the channel count when interface is already up.

Previously we were planning to use a trick of using shared interrupts.
We would install a second IRQ handler for the new NAPI, and make it
return IRQ_NONE until we were ready for it to take over. This works fine
functionally but breaks IRQ naming. The IRQ subsystem uses the IRQ name
to create the procfs entry, since both handlers used the same name
the second handler wouldn't get a proc directory registered.
When first one gets removed on success full ring count change
it would remove its directory and we would be left with none.

New approach uses a double pointer to the NAPI. The IRQ handler needs
to know how to locate the NAPI to schedule. We register a single IRQ handler
and give it a pointer to a pointer. We can then change what it points to
without re-registering. This may have a tiny perf impact, but really
really negligible.

Link: https://patch.msgid.link/20241220025241.1522781-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:55 -08:00
Jakub Kicinski
db7159c400 eth: fbnic: store NAPIs in an array instead of the list
We will need an array for storing NAPIs in the upcoming IRQ handler
reuse rework. Replace the current list we have, so that we are able
to reuse it later.

In a few places replace i as the iterator with t when we iterate
over triads, this seems slightly less confusing than having
i, j, k variables.

Link: https://patch.msgid.link/20241220025241.1522781-7-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:55 -08:00
Alexander Duyck
c23a1461bf eth: fbnic: let user control the RSS hash fields
Support setting the fields over which RSS computes its hash.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/20241220025241.1522781-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:55 -08:00
Alexander Duyck
31ab733e99 eth: fbnic: support setting RSS configuration
Let the user program the RSS indirection table and the RSS key.
Straightforward implementation. Track the changes and don't bother
poking the HW if user asked for a config identical to what's already
programmed. The device only supports Toeplitz hash.

Similarly to the GET support - all the real code that does the programming
was part of initial driver submission, already.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/20241220025241.1522781-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:54 -08:00
Jakub Kicinski
ef1c28817b eth: fbnic: don't reset the secondary RSS indir table
Secondary RSS indirection table is for additional contexts.
It can / should be initialized when such context is created.
Since we don't support creating RSS contexts, yet, this change
has no user visible effect.

Link: https://patch.msgid.link/20241220025241.1522781-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:54 -08:00
Alexander Duyck
7cb06a6a77 eth: fbnic: support querying RSS config
The initial driver submission already added all the RSS state,
as part of multi-queue support. Expose the configuration via
the ethtool APIs.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241220025241.1522781-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:54 -08:00
Jakub Kicinski
7d0bf493b1 eth: fbnic: reorder ethtool code
Define ethtool callback handlers in order in which they are defined
in the ops struct. It doesn't really matter what the order is,
but it's good to have an order.

Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Link: https://patch.msgid.link/20241220025241.1522781-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:35:53 -08:00
Jakub Kicinski
f6f1795d0c Merge branch 'mlx5-misc-changes-2024-12-19'
Tariq Toukan says:

====================
mlx5 misc changes 2024-12-19

The first two patches by Rongwei add support for multi-host LAG. The new
multi-host NICs provide each host with partial ports, allowing each host
to maintain its unique LAG configuration.

Patches 3-7 by Moshe, Mark and Yevgeny are enhancements and preparations
in fs_core and HW steering, in preparation for future patchsets.

Patches 8-9 by Itamar add SW Steering support for ConnectX-8. They are
moved here after being part of previous submissions, yet to be accepted.

Patch 10 by Carolina cleans up an unnecessary log message.

Patch 11 by Patrisious allows RDMA RX steering creation over devices
with IB link layer.
====================

Link: https://patch.msgid.link/20241219175841.1094544-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:48 -08:00
Patrisious Haddad
ef1749d506 net/mlx5: fs, Add support for RDMA RX steering over IB link layer
Relax the capability check for creating the RDMA RX steering domain
by considering only the capabilities reported by the firmware
as necessary for its creation, which in turn allows RDMA RX creation
over devices with IB link layer as well.

The table_miss_action_domain capability is required only for a specific
priority, which is handled in mlx5_rdma_enable_roce_steering().
The additional capability check for this case is already in place.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-12-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:46 -08:00
Carolina Jubran
f440d69a21 net/mlx5: Remove PTM support log message
The absence of Precision Time Measurement support should not emit a
message, as it can be misleading in contexts where PTM is not required.

Remove the log message indicating the lack of PCIe PTM support.

Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-11-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:46 -08:00
Itamar Gozlan
4d617b5757 net/mlx5: DR, add support for ConnectX-8 steering
Add support for a new steering format version that is implemented by
ConnectX-8.
Except for several differences, the STEv3 is identical to STEv2, so
for most callbacks STEv3 context struct will call STEv2 functions.

Signed-off-by: Itamar Gozlan <igozlan@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-10-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:46 -08:00
Itamar Gozlan
aa90a30804 net/mlx5: DR, expand SWS STE callbacks and consolidate common structs
Expand SWS STE callbacks to support ConnectX-8 hardware.
Move common enums and structures to a shared header file.

Signed-off-by: Itamar Gozlan <igozlan@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-9-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:46 -08:00
Yevgeny Kliteynik
429776b601 net/mlx5: HWS, do not initialize native API queues
HWS has two types of APIs:
 - Native: fastest and slimmest, async API.
   The user of this API is required to manage rule handles memory,
   and to poll for completion for each rule.
 - BWC: backward compatible API, similar semantics to SWS API.
   This layer is implemented above native API and it does all
   the work for the user, so that it is easy to switch between
   SWS and HWS.

Right now the existing users of HWS require only BWC API.
Therefore, in order to not waste resources, this patch disables
send queues allocation for native API.

If in the future support for faster HWS rule insertion will be required
(such as for Connection Tracking), native queues can be enabled.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Itamar Gozlan <igozlan@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-8-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:45 -08:00
Yevgeny Kliteynik
9a0155a709 net/mlx5: HWS, no need to expose mlx5hws_send_queues_open/close
No need to have mlx5hws_send_queues_open/close in header.
Make them static and remove from header.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Itamar Gozlan <igozlan@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-7-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:45 -08:00
Mark Bloch
586face881 net/mlx5: fs, retry insertion to hash table on EBUSY
When inserting into an rhashtable faster than it can grow, an -EBUSY error
may be encountered. Modify the insertion logic to retry on -EBUSY until
either a successful insertion or a genuine error is returned.

Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241219175841.1094544-6-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:45 -08:00
Moshe Shemesh
31d1356b8f net/mlx5: fs, add mlx5_fs_pool API
Refactor fc_pool API to create generic fs_pool API, as HW steering has
more flow steering elements which can take advantage of the same pool of
bulks API. Change fs_counters code to use the fs_pool API.

Note, removed __counted_by from struct mlx5_fc_bulk as bulk_len is now
inner struct member. It will be added back once __counted_by can support
inner struct members.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:45 -08:00
Moshe Shemesh
95f68e06b4 net/mlx5: fs, add counter object to flow destination
Currently mlx5_flow_destination includes counter_id which is assigned in
case we use flow counter on the flow steering rule. However, counter_id
is not enough data in case of using HW Steering. Thus, have mlx5_fc
object as part of mlx5_flow_destination instead of counter_id and assign
it where needed.

In case counter_id is received from user space, create a local counter
object to represent it.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:45 -08:00
Rongwei Liu
60d01cc468 net/mlx5: LAG, Support LAG over Multi-Host NICs
New multi-host NICs provide each host with partial ports,
allowing each host to maintain its unique LAG configuration.

On these multi-host NICs, the 'native_port_num' capability
is no longer continuous on each host and can exceed the
'num_lag_ports' capability. Therefore, it is necessary to
skip the PFs with ldev->pf[i].dev == NULL when querying/modifying
the lag devices' information.
There is no need to check dev.native_port_num against ldev->ports.

Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:45 -08:00
Rongwei Liu
ddbb5ddc43 net/mlx5: LAG, Refactor lag logic
Wrap the lag pf access into two new macros:
1. ldev_for_each()
2. ldev_for_each_reverse()
The maximum number of lag ports and the index to `natvie_port_num`
mapping will be handled by the two new macros.
Users shouldn't use the for loop anymore.

Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:34:44 -08:00
Jakub Kicinski
8d94a744e1 Merge branch 'add-rds-ptp-library-for-microchip-phys'
Divya Koppera says:

====================
Add rds ptp library for Microchip phys

Adds support for rds ptp library in Microchip phys, where rds is internal
code name for ptp IP or hardware. This library will be re-used in
Microchip phys where same ptp hardware is used. Register base addresses
and mmd may changes, due to which base addresses and mmd is made variable
in this library.
====================

Link: https://patch.msgid.link/20241219123311.30213-1-divya.koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:31:01 -08:00
Divya Koppera
9fc3d6fe80 net: phy: microchip_t1 : Add initialization of ptp for lan887x
Add initialization of ptp for lan887x.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Divya Koppera <divya.koppera@microchip.com>
Link: https://patch.msgid.link/20241219123311.30213-6-divya.koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:30:59 -08:00
Divya Koppera
85b39f7593 net: phy: Makefile: Add makefile support for rds ptp in Microchip phys
Add makefile support for rds ptp library.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Divya Koppera <divya.koppera@microchip.com>
Link: https://patch.msgid.link/20241219123311.30213-5-divya.koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:30:59 -08:00
Divya Koppera
2550afc61e net: phy: Kconfig: Add rds ptp library support and 1588 optional flag in Microchip phys
Add ptp library support in Kconfig
As some of Microchip T1 phys support ptp, add dependency
of 1588 optional flag in Kconfig

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Divya Koppera <divya.koppera@microchip.com>
Link: https://patch.msgid.link/20241219123311.30213-4-divya.koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:30:59 -08:00
Divya Koppera
fa51199c5f net: phy: microchip_rds_ptp : Add rds ptp library for Microchip phys
Add rds ptp library for Microchip phys
1-step and 2-step modes are supported, over Ethernet and UDP(ipv4, ipv6)

Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Divya Koppera <divya.koppera@microchip.com>
Link: https://patch.msgid.link/20241219123311.30213-3-divya.koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:30:58 -08:00
Divya Koppera
d46ef4ee38 net: phy: microchip_rds_ptp: Add header file for Microchip rds ptp library
This rds ptp header file will cover ptp macros for future phys in
Microchip where addresses will be same but base offset and mmd address
may changes.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Divya Koppera <divya.koppera@microchip.com>
Link: https://patch.msgid.link/20241219123311.30213-2-divya.koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:30:58 -08:00
Jakub Kicinski
b4cbbf078c Merge branch 'vsock-test-tests-for-memory-leaks'
Michal Luczaj says:

====================
vsock/test: Tests for memory leaks

Series adds tests for recently fixed memory leaks[1]:

commit d7b0ff5a86 ("virtio/vsock: Fix accept_queue memory leak")
commit fbf7085b3a ("vsock: Fix sk_error_queue memory leak")
commit 60cf6206a1 ("virtio/vsock: Improve MSG_ZEROCOPY error handling")

Patch 1 is a non-functional preparatory cleanup.
Patch 2 is a test suite extension for picking specific tests.
Patch 3 explains the need of kmemleak scans.
Patch 4 adapts utility functions to handle MSG_ZEROCOPY.
Patches 5-6-7 add the tests.

NOTE: Test in the last patch ("vsock/test: Add test for MSG_ZEROCOPY
completion memory leak") may stop working even before this series is
merged. See changes proposed in [2]. The failslab variant would be
unaffected.

[1] https://lore.kernel.org/20241107-vsock-mem-leaks-v2-0-4e21bfcfc818@rbox.co
[2] https://lore.kernel.org/CANn89i+oL+qoPmbbGvE_RT3_3OWgeck7cCPcTafeehKrQZ8kyw@mail.gmail.com

v3: https://lore.kernel.org/20241218-test-vsock-leaks-v3-0-f1a4dcef9228@rbox.co
v2: https://lore.kernel.org/20241216-test-vsock-leaks-v2-0-55e1405742fc@rbox.co
v1: https://lore.kernel.org/20241206-test-vsock-leaks-v1-0-c31e8c875797@rbox.co
====================

Link: https://patch.msgid.link/20241219-test-vsock-leaks-v4-0-a416e554d9d7@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:29:01 -08:00
Michal Luczaj
d127ac8b1d vsock/test: Add test for MSG_ZEROCOPY completion memory leak
Exercise the ENOMEM error path by attempting to hit net.core.optmem_max
limit on send().

Test aims to create a memory leak, kmemleak should be employed.

Fixed by commit 60cf6206a1 ("virtio/vsock: Improve MSG_ZEROCOPY error
handling").

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20241219-test-vsock-leaks-v4-7-a416e554d9d7@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:28:01 -08:00
Michal Luczaj
ec50efee8c vsock/test: Add test for sk_error_queue memory leak
Ask for MSG_ZEROCOPY completion notification, but do not recv() it.
Test attempts to create a memory leak, kmemleak should be employed.

Fixed by commit fbf7085b3a ("vsock: Fix sk_error_queue memory leak").

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20241219-test-vsock-leaks-v4-6-a416e554d9d7@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:28:01 -08:00
Michal Luczaj
f66ef469a7 vsock/test: Add test for accept_queue memory leak
Attempt to enqueue a child after the queue was flushed, but before
SOCK_DONE flag has been set.

Test tries to produce a memory leak, kmemleak should be employed. Dealing
with a race condition, test by its very nature may lead to a false
negative.

Fixed by commit d7b0ff5a86 ("virtio/vsock: Fix accept_queue memory
leak").

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20241219-test-vsock-leaks-v4-5-a416e554d9d7@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:28:01 -08:00
Michal Luczaj
f52e7f593b vsock/test: Adapt send_byte()/recv_byte() to handle MSG_ZEROCOPY
For a zerocopy send(), buffer (always byte 'A') needs to be preserved (thus
it can not be on the stack) or the data recv()ed check in recv_byte() might
fail.

While there, change the printf format to 0x%02x so the '\0' bytes can be
seen.

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20241219-test-vsock-leaks-v4-4-a416e554d9d7@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:28:01 -08:00
Michal Luczaj
50f9434463 vsock/test: Add README blurb about kmemleak usage
Document the suggested use of kmemleak for memory leak detection.

Suggested-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20241219-test-vsock-leaks-v4-3-a416e554d9d7@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:28:00 -08:00
Michal Luczaj
ef8bd18f47 vsock/test: Introduce option to select tests
Allow for selecting specific test IDs to be executed.

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20241219-test-vsock-leaks-v4-2-a416e554d9d7@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:28:00 -08:00
Michal Luczaj
f3af3ba108 vsock/test: Use NSEC_PER_SEC
Replace 1000000000ULL with NSEC_PER_SEC.

No functional change intended.

Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20241219-test-vsock-leaks-v4-1-a416e554d9d7@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:28:00 -08:00
Yuyang Huang
aa4ad7c3f2 netlink: correct nlmsg size for multicast notifications
Corrected the netlink message size calculation for multicast group
join/leave notifications. The previous calculation did not account for
the inclusion of both IPv4/IPv6 addresses and ifa_cacheinfo in the
payload. This fix ensures that the allocated message size is
sufficient to hold all necessary information.

This patch also includes the following improvements:
* Uses GFP_KERNEL instead of GFP_ATOMIC when holding the RTNL mutex.
* Uses nla_total_size(sizeof(struct in6_addr)) instead of
  nla_total_size(16).
* Removes unnecessary EXPORT_SYMBOL().

Fixes: 2c2b61d213 ("netlink: add IGMP/MLD join/leave notifications")
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: Yuyang Huang <yuyanghuang@google.com>
Link: https://patch.msgid.link/20241221100007.1910089-1-yuyanghuang@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:26:43 -08:00
Jakub Kicinski
f288c7a1ba selftests: drv-net: assume stats refresh is 0 if no ethtool -c support
Tests using HW stats wait for them to stabilize, using data from
ethtool -c as the delay. Not all drivers implement ethtool -c
so handle the errors gracefully.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20241220003116.1458863-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:12:20 -08:00
YiFei Zhu
85101bda13 sfc: Use netdev refcount tracking in struct efx_async_filter_insertion
I was debugging some netdev refcount issues in OpenOnload, and one
of the places I was looking at was in the sfc driver. Only
struct efx_async_filter_insertion was not using netdev refcount tracker,
so add it here. GFP_ATOMIC because this code path is called by
ndo_rx_flow_steer which holds RCU.

This patch should be a no-op if !CONFIG_NET_DEV_REFCNT_TRACKER

Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241219173004.2615655-1-zhuyifei@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:11:49 -08:00
Jakub Kicinski
a6ac667467 Merge branch 'net-bridge-add-skb-drop-reasons-to-the-most-common-drop-points'
Radu Rendec says:

====================
net/bridge: Add skb drop reasons to the most common drop points

The bridge input code may drop frames for various reasons and at various
points in the ingress handling logic. Currently kfree_skb() is used
everywhere, and therefore no drop reason is specified. Add drop reasons
to the most common drop points.

The purpose of this series is to address the most common drop points on
the bridge ingress path. It does not exhaustively add drop reasons to
the entire bridge code. The intention here is to incrementally add drop
reasons to the rest of the bridge code in follow up patches.

Most of the skb drop points that are addressed in this series can be
easily tested by sending crafted packets. The diagram below shows a
simple test configuration, and some examples using `packit`(*) are
also included. The bridge is set up with STP disabled.
(*) https://github.com/resurrecting-open-source-projects/packit

The following changes were *not* tested:
* SKB_DROP_REASON_NOMEM in br_flood(). It's not easy to trigger an OOM
  condition for testing purposes, while everything else works correctly.
* All drop reasons in br_multicast_flood(). I could not find an easy way
  to make a crafted packet get there.
* SKB_DROP_REASON_BRIDGE_INGRESS_STP_STATE in br_handle_frame_finish()
  when the port state is BR_STATE_DISABLED, because in that case the
  frame is already dropped in the switch/case block at the end of
  br_handle_frame().

    +-------+
    |  br0  |
    +---+---+
        |
    +---+---+  veth pair  +-------+
    | veth0 +-------------+ xeth0 |
    +-------+             +-------+

SKB_DROP_REASON_MAC_INVALID_SOURCE - br_handle_frame()
packit -t UDP -s 192.168.0.1 -d 192.168.0.2 -S 8000 -D 8000 \
  -e 01:22:33:44:55:66 -E aa:bb:cc:dd:ee:ff -c 1 \
  -p '0x de ad be ef' -i xeth0

SKB_DROP_REASON_MAC_IEEE_MAC_CONTROL - br_handle_frame()
packit -t UDP -s 192.168.0.1 -d 192.168.0.2 -S 8000 -D 8000 \
  -e 02:22:33:44:55:66 -E 01:80:c2:00:00:01 -c 1 \
  -p '0x de ad be ef' -i xeth0

SKB_DROP_REASON_BRIDGE_INGRESS_STP_STATE - br_handle_frame()
bridge link set dev veth0 state 0 # disabled
packit -t UDP -s 192.168.0.1 -d 192.168.0.2 -S 8000 -D 8000 \
  -e 02:22:33:44:55:66 -E aa:bb:cc:dd:ee:ff -c 1 \
  -p '0x de ad be ef' -i xeth0

SKB_DROP_REASON_BRIDGE_INGRESS_STP_STATE - br_handle_frame_finish()
bridge link set dev veth0 state 2 # learning
packit -t UDP -s 192.168.0.1 -d 192.168.0.2 -S 8000 -D 8000 \
  -e 02:22:33:44:55:66 -E aa:bb:cc:dd:ee:ff -c 1 \
  -p '0x de ad be ef' -i xeth0

SKB_DROP_REASON_NO_TX_TARGET - br_flood()
packit -t UDP -s 192.168.0.1 -d 192.168.0.2 -S 8000 -D 8000 \
  -e 02:22:33:44:55:66 -E aa:bb:cc:dd:ee:ff -c 1 \
  -p '0x de ad be ef' -i xeth0
====================

Link: https://patch.msgid.link/20241219163606.717758-1-rrendec@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:11:08 -08:00
Radu Rendec
623e43c2f5 net: bridge: add skb drop reasons to the most common drop points
The bridge input code may drop frames for various reasons and at various
points in the ingress handling logic. Currently kfree_skb() is used
everywhere, and therefore no drop reason is specified. Add drop reasons
to the most common drop points.

Drop reasons are not added exhaustively to the entire bridge code. The
intention is to incrementally add drop reasons to the rest of the bridge
code in follow up patches.

Signed-off-by: Radu Rendec <rrendec@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20241219163606.717758-3-rrendec@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:11:04 -08:00
Radu Rendec
46e0ccfb88 net: vxlan: rename SKB_DROP_REASON_VXLAN_NO_REMOTE
The SKB_DROP_REASON_VXLAN_NO_REMOTE skb drop reason was introduced in
the specific context of vxlan. As it turns out, there are similar cases
when a packet needs to be dropped in other parts of the network stack,
such as the bridge module.

Rename SKB_DROP_REASON_VXLAN_NO_REMOTE and give it a more generic name,
so that it can be used in other parts of the network stack. This is not
a functional change, and the numeric value of the drop reason even
remains unchanged.

Signed-off-by: Radu Rendec <rrendec@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20241219163606.717758-2-rrendec@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-23 10:11:04 -08:00