This is due to a check in the udp stack if the egress device offers
checksum offload. While TUN/TAP devices, by default, don't advertise this
capability because it requires support from the TUN/TAP reader.
However, the GSO stack has a software fallback for checksum calculation,
which we can use. This way we don't force UDP_SEGMENT users to handle the
EIO error and implement a segmentation fallback.
Lift the restriction so that UDP_SEGMENT can be used with any egress
device. We also need to adjust the UDP GSO code to match the GSO stack
expectation about ip_summed field, as set in commit 8d63bee643f1 ("net:
avoid skb_warn_bad_offload false positives on UFO"). Otherwise we will hit
the bad offload check.
Users should, however, expect a potential performance impact when
batch-sending packets with UDP_SEGMENT without checksum offload on the
egress device. In such case the packet payload is read twice: first during
the sendmsg syscall when copying data from user memory, and then in the GSO
stack for checksum computation. This double memory read can be less
efficient than a regular sendmsg where the checksum is calculated during
the initial data copy from user memory.
David S. Miller [Fri, 28 Jun 2024 09:55:38 +0000 (10:55 +0100)]
Merge branch 'net-selftests-mirroring-cleanup' into main
Petr Machata says:
====================
selftest: Clean-up and stabilize mirroring tests
The mirroring selftests work by sending ICMP traffic between two hosts.
Along the way, this traffic is mirrored to a gretap netdevice, and counter
taps are then installed strategically along the path of the mirrored
traffic to verify the mirroring took place.
The problem with this is that besides mirroring the primary traffic, any
other service traffic is mirrored as well. At the same time, because the
tests need to work in HW-offloaded scenarios, the ability of the device to
do arbitrary packet inspection should not be taken for granted. Most tests
therefore simply use matchall, one uses flower to match on IP address.
As a result, the selftests are noisy.
mirror_test() accommodated this noisiness by giving the counters an
allowance of several packets. But that only works up to a point, and on
busy systems won't be always enough.
In this patch set, clean up and stabilize the mirroring selftests. The
original intention was to port the tests over to UDP, but the logic of
ICMP ends up being so entangled in the mirroring selftests that the
changes feel overly invasive. Instead, ICMP is kept, but where possible,
we match on ICMP message type, thus filtering out hits by other ICMP
messages.
Where this is not practical (where the counter tap is put on a device
that carries encapsulated packets), switch the counter condition to _at
least_ X observed packets. This is less robust, but barely so --
probably the only scenario that this would not catch is something like
erroneous packet duplication, which would hopefully get caught by the
numerous other tests in this extensive suite.
- Patches #1 to #3 clean up parameters at various helpers.
- Patches #4 to #6 stabilize the mirroring selftests as described above.
- Mirroring tests currently allow testing SW datapath even on HW
netdevices by trapping traffic to the SW datapath. This complicates
the tests a bit without a good reason: to test SW datapath, just run
the selftests on the veth topology. Thus in patch #7, drop support for
this dual SW/HW testing.
- At this point, some cleanups were either made possible by the previous
patches, or were always possible. In patches #8 to #11, realize these
cleanups.
- In patch #12, fix mlxsw mirror_gre selftest to respect setting TESTS.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:49 +0000 (16:48 +0200)]
selftests: mlxsw: mirror_gre: Obey TESTS
This test is unusual in that overriding TESTS does not change the tests to
be run. Split the individual tests into several functions and invoke them
through tests_run() as appropriate.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:48 +0000 (16:48 +0200)]
selftests: libs: Drop unused functions
Nothing calls these.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:47 +0000 (16:48 +0200)]
selftests: libs: Drop slow_path_trap_install()/_uninstall()
These functions are not used anymore.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:46 +0000 (16:48 +0200)]
selftests: mirror_gre_lag_lacp: Drop unnecessary code
The selftest does not use functions from mirror_gre_lib, ditch the import.
It does not use arping either, so drop the require_command as well.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:45 +0000 (16:48 +0200)]
selftests: mlxsw: mirror_gre: Simplify
After the previous patch, the function test_span_failable() is always
called with should_fail=1. Drop the argument and streamline the code.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:44 +0000 (16:48 +0200)]
selftests: mirror: Drop dual SW/HW testing
The mirroring tests are currently run in a skip_hw and optionally a skip_sw
mode. The former tests the SW datapath, the latter the HW datapath, if
available. In order to be able to test SW datapath on HW loopbacks, traps
are installed on ingress to get traffic from the HW datapath to the SW one.
This adds an unnecessary complexity when it would be much simpler to just
use a veth-based topology to test the SW datapath. Thus drop all the code
that supports this dual testing.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:43 +0000 (16:48 +0200)]
selftests: mirror: mirror_test(): Allow exact count of packets
The mirroring selftests work by sending ICMP traffic between two hosts.
Along the way, this traffic is mirrored to a gretap netdevice, and counter
taps are then installed strategically along the path of the mirrored
traffic to verify the mirroring took place.
The problem with this is that besides mirroring the primary traffic, any
other service traffic is mirrored as well. At the same time, because the
tests need to work in HW-offloaded scenarios, the ability of the device to
do arbitrary packet inspection should not be taken for granted. Most tests
therefore simply use matchall, one uses flower to match on IP address.
As a result, the selftests are noisy, because besides the primary ICMP
traffic, any amount of other service traffic is mirrored as well.
mirror_test() accommodated this noisiness by giving the counters an
allowance of several packets. But in the previous patch, where possible,
counter taps were changed to match only on an exact ICMP message. At least
in those cases, we can demand an exact number of packets to match.
Where the tap is installed on a connective netdevice, the exact matching is
not practical (though with u32, anything is possible). In those places,
there should still be some leeway -- and probably bigger than before,
because experience shows that these tests are very noisy.
To that end, change mirror_test() so that it can be either called with an
exact number to expect, or with an expression. Where leeway is needed,
adjust callers to pass a ">= 10" instead of mere 10.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:42 +0000 (16:48 +0200)]
selftests: mirror: do_test_span_dir_ips(): Install accurate taps
The mirroring selftests work by sending ICMP traffic between two hosts.
Along the way, this traffic is mirrored to a gretap netdevice, and counter
taps are then installed strategically along the path of the mirrored
traffic to verify the mirroring took place.
The problem with this is that besides mirroring the primary traffic, any
other service traffic is mirrored as well. At the same time, because the
tests need to work in HW-offloaded scenarios, the ability of the device to
do arbitrary packet inspection should not be taken for granted. Most tests
therefore simply use matchall, one uses flower to match on IP address.
As a result, the selftests are noisy, because besides the primary ICMP
traffic, any amount of other service traffic is mirrored as well.
However, often the counter tap is installed at the remote end of the gretap
tunnel. Since this is a SW-datapath scenario anyway, we can make the filter
arbitrarily accurate.
Thus in this patch, add parameters forward_type and backward_type to
several mirroring test helpers, as some other helpers already have. Then
change do_test_span_dir_ips() to instead of installing one generic tap and
using it for test in both directions, install the tap for each direction
separately, matching on the ICMP type given by these parameters.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:41 +0000 (16:48 +0200)]
selftests: mirror_gre_lag_lacp: Check counters at tunnel
The test works by sending packets through a tunnel, whence they are
forwarded to a LAG. One of the LAG children is removed from the LAG prior
to the exercise, and the test then counts how many packets pass through the
other one. The issue with this is that it counts all packets, not just the
encapsulated ones.
So instead add a second gretap endpoint to receive the sent packets, and
check reception counters there.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:40 +0000 (16:48 +0200)]
selftests: lib: tc_rule_stats_get(): Move default to argument definition
The argument $dir has a fallback value of "ingress". Move the fallback from
the usage site to the argument definition block to make the fact clearer.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:39 +0000 (16:48 +0200)]
selftests: mirror: Drop direction argument from several functions
The argument is not used by these functions except to propagate it for
ultimately no purpose.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Petr Machata [Thu, 27 Jun 2024 14:48:38 +0000 (16:48 +0200)]
selftests: libs: Expand "$@" where possible
In some functions, argument-forwarding through "$@" without listing the
individual arguments explicitly is fundamental to the operation of a
function. E.g. xfail_on_veth() should be able to run various tests in the
fail-to-xfail regime, and usage of "$@" is appropriate as an abstraction
mechanism. For functions such as simple_if_init(), $@ is a handy way to
pass an array.
In other functions, it's merely a mechanism to save some typing, which
however ends up obscuring the real arguments and makes life hard for those
that end up reading the code.
This patch adds some of the implicit function arguments and correspondingly
expands $@'s. In several cases this will come in handy as following patches
adjust the parameter lists.
Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 28 Jun 2024 09:49:35 +0000 (10:49 +0100)]
Merge branch 'net-flash-modees-firmware' into main
Danielle Ratson says:
====================
Add ability to flash modules' firmware
CMIS compliant modules such as QSFP-DD might be running a firmware that
can be updated in a vendor-neutral way by exchanging messages between
the host and the module as described in section 7.2.2 of revision
4.0 of the CMIS standard.
According to the CMIS standard, the firmware update process is done
using a CDB commands sequence.
CDB (Command Data Block Message Communication) reads and writes are
performed on memory map pages 9Fh-AFh according to the CMIS standard,
section 8.12 of revision 4.0.
Add a pair of new ethtool messages that allow:
* User space to trigger firmware update of transceiver modules
* The kernel to notify user space about the progress of the process
The user interface is designed to be asynchronous in order to avoid RTNL
being held for too long and to allow several modules to be updated
simultaneously. The interface is designed with CMIS compliant modules in
mind, but kept generic enough to accommodate future use cases, if these
arise.
The kernel interface that will implement the firmware update using CDB
command will include 2 layers that will be added under ethtool:
* The upper layer that will be triggered from the module layer, is
cmis_ fw_update.
* The lower one is cmis_cdb.
In the future there might be more operations to implement using CDB
commands. Therefore, the idea is to keep the cmis_cdb interface clean and
the cmis_fw_update specific to the cdb commands handling it.
The communication between the kernel and the driver will be done using
two ethtool operations that enable reading and writing the transceiver
module EEPROM.
The operation ethtool_ops::get_module_eeprom_by_page, that is already
implemented, will be used for reading from the EEPROM the CDB reply,
e.g. reading module setting, state, etc.
The operation ethtool_ops::set_module_eeprom_by_page, that is added in
the current patchset, will be used for writing to the EEPROM the CDB
command such as start firmware image, run firmware image, etc.
Therefore in order for a driver to implement module flashing, that
driver needs to implement the two functions mentioned above.
Patchset overview:
Patch #1-#2: Implement the EEPROM writing in mlxsw.
Patch #3: Define the interface between the kernel and user space.
Patch #4: Add ability to notify the flashing firmware progress.
Patch #5: Veto operations during flashing.
Patch #6: Add extended compliance codes.
Patch #7: Add the cdb layer.
Patch #8: Add the fw_update layer.
Patch #9: Add ability to flash transceiver modules' firmware.
v8:
Patch #7:
* In the ethtool_cmis_wait_for_cond() evaluate the condition once more
to decide if the error code should be -ETIMEDOUT or something else.
* s/netdev_err/netdev_err_once.
v7:
Patch #4:
* Return -ENOMEM instead of PTR_ERR(attr) on
ethnl_module_fw_flash_ntf_put_err().
Patch #9:
* Fix Warning for not unlocking the spin_lock in the error flow
on module_flash_fw_work_list_add().
* Avoid the fall-through on ethnl_sock_priv_destroy().
v6:
* Squash some of the last patch to patch #5 and patch #9.
Patch #3:
* Add paragraph in .rst file.
Patch #4:
* Reserve '1' more place on SKB for NUL terminator in
the error message string.
* Add more prints on error flow, re-write the printing
function and add ethnl_module_fw_flash_ntf_put_err().
* Change the communication method so notification will be
sent in unicast instead of multicast.
* Add new 'struct ethnl_module_fw_flash_ntf_params' that holds
the relevant info for unicast communication and use it to
send notification to the specific socket.
* s/nla_put_u64_64bit/nla_put_uint/
Patch #7:
* In ethtool_cmis_cdb_init(), Use 'const' for the 'params'
parameter.
Patch #8:
* Add a list field to struct ethtool_module_fw_flash for
module_fw_flash_work_list that will be presented in the next
patch.
* Move ethtool_cmis_fw_update() cleaning to a new function that
will be represented in the next patch.
* Move some of the fields in struct ethtool_module_fw_flash to
a separate struct, so ethtool_cmis_fw_update() will get only
the relevant parameters for it.
* Edit the relevant functions to get the relevant params for
them.
* s/CMIS_MODULE_READY_MAX_DURATION_USEC/CMIS_MODULE_READY_MAX_DURATION_MSEC
Patch #9:
* Add a paragraph in the commit message.
* Rename labels in module_flash_fw_schedule().
* Add info to genl_sk_priv_*() and implement the relevant
callbacks, in order to handle properly a scenario of closing
the socket from user space before the work item was ended.
* Add a list the holds all the ethtool_module_fw_flash struct
that corresponds to the in progress work items.
* Add a new enum for the socket types.
* Use both above to identify a flashing socket, add it to the
list and when closing socket affect only the flashing type.
* Create a new function that will get the work item instead of
ethtool_cmis_fw_update().
* Edit the relevant functions to get the relevant params for
them.
* The new function will call the old ethtool_cmis_fw_update(),
and do the cleaning, so the existence of the list should be
completely isolated in module.c.
===================
Signed-off-by: David S. Miller <davem@davemloft.net>
Transceiver module firmware flashing started for device swp40
Transceiver module firmware flashing in progress for device swp40
Progress: 99%
Transceiver module firmware flashing completed for device swp40
In addition, add infrastructure that allows modules to set socket-specific
private data. This ensures that when a socket is closed from user space
during the flashing process, the right socket halts sending notifications
to user space until the work item is completed.
Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Danielle Ratson [Thu, 27 Jun 2024 14:08:55 +0000 (17:08 +0300)]
ethtool: cmis_fw_update: add a layer for supporting firmware update using CDB
According to the CMIS standard, the firmware update process is done using
a CDB commands sequence.
Implement a work that will be triggered from the module layer in the
next patch the will initiate and execute all the CDB commands in order, to
eventually complete the firmware update process.
This flashing process includes, writing the firmware image, running the new
firmware image and committing it after testing, so that it will run upon
reset.
This work will also notify user space about the progress of the firmware
update process.
Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Danielle Ratson [Thu, 27 Jun 2024 14:08:54 +0000 (17:08 +0300)]
ethtool: cmis_cdb: Add a layer for supporting CDB commands
CDB (Command Data Block Message Communication) reads and writes are
performed on memory map pages 9Fh-AFh according to the CMIS standard,
section 8.20 of revision 5.2.
Page 9Fh is used to specify the CDB command to be executed and also
provides an area for a local payload (LPL).
According to the CMIS standard, the firmware update process is done using
a CDB commands sequence that will be implemented in the next patch.
The kernel interface that will implement the firmware update using CDB
command will include 2 layers that will be added under ethtool:
* The upper layer that will be triggered from the module layer, is
cmis_fw_update.
* The lower one is cmis_cdb.
In the future there might be more operations to implement using CDB
commands. Therefore, the idea is to keep the CDB interface clean and the
cmis_fw_update specific to the CDB commands handling it.
These two layers will communicate using the API the consists of three
functions:
Add the CDB layer to support initializing, finishing and executing CDB
commands:
* The initialization process will include creating of an ethtool_cmis_cdb
instance, querying the module CDB support, entering and validating the
password from user space (CMD 0x0000) and querying the module features
(CMD 0x0040).
* The finishing API will simply free the ethtool_cmis_cdb instance.
* The executing process will write the CDB command to EEPROM using
set_module_eeprom_by_page() that was presented earlier, and will
process the reply from EEPROM.
Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Danielle Ratson [Thu, 27 Jun 2024 14:08:53 +0000 (17:08 +0300)]
net: sfp: Add more extended compliance codes
SFF-8024 is used to define various constants re-used in several SFF
SFP-related specifications.
Add SFF-8024 extended compliance code definitions for CMIS compliant
modules and use them in the next patch to determine the firmware flashing
work.
Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Danielle Ratson [Thu, 27 Jun 2024 14:08:52 +0000 (17:08 +0300)]
ethtool: Veto some operations during firmware flashing process
Some operations cannot be performed during the firmware flashing
process.
For example:
- Port must be down during the whole flashing process to avoid packet loss
while committing reset for example.
- Writing to EEPROM interrupts the flashing process, so operations like
ethtool dump, module reset, get and set power mode should be vetoed.
- Split port firmware flashing should be vetoed.
In order to veto those scenarios, add a flag in 'struct net_device' that
indicates when a firmware flash is taking place on the module and use it
to prevent interruptions during the process.
Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Add progress notifications ability to user space while flashing modules'
firmware by implementing the interface between the user space and the
kernel.
Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Danielle Ratson [Thu, 27 Jun 2024 14:08:50 +0000 (17:08 +0300)]
ethtool: Add an interface for flashing transceiver modules' firmware
CMIS compliant modules such as QSFP-DD might be running a firmware that
can be updated in a vendor-neutral way by exchanging messages between
the host and the module as described in section 7.3.1 of revision 5.2 of
the CMIS standard.
Add a pair of new ethtool messages that allow:
* User space to trigger firmware update of transceiver modules
* The kernel to notify user space about the progress of the process
The user interface is designed to be asynchronous in order to avoid
RTNL being held for too long and to allow several modules to be
updated simultaneously. The interface is designed with CMIS compliant
modules in mind, but kept generic enough to accommodate future use
cases, if these arise.
Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Thu, 27 Jun 2024 14:08:49 +0000 (17:08 +0300)]
mlxsw: Implement ethtool operation to write to a transceiver module EEPROM
Implement the ethtool_ops::set_module_eeprom_by_page operation to allow
ethtool to write to a transceiver module EEPROM, in a similar fashion to
the ethtool_ops::get_module_eeprom_by_page operation.
Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Thu, 27 Jun 2024 14:08:48 +0000 (17:08 +0300)]
ethtool: Add ethtool operation to write to a transceiver module EEPROM
Ethtool can already retrieve information from a transceiver module
EEPROM by invoking the ethtool_ops::get_module_eeprom_by_page operation.
Add a corresponding operation that allows ethtool to write to a
transceiver module EEPROM.
The new write operation is purely an in-kernel API and is not exposed to
user space.
The purpose of this operation is not to enable arbitrary read / write
access, but to allow the kernel to write to specific addresses as part
of transceiver module firmware flashing. In the future, more
functionality can be implemented on top of these read / write
operations.
Adjust the comments of the 'ethtool_module_eeprom' structure as it is
no longer used only for read access.
Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Breno Leitao [Wed, 26 Jun 2024 17:35:02 +0000 (10:35 -0700)]
net: thunderx: Unembed netdev structure
Embedding net_device into structures prohibits the usage of flexible
arrays in the net_device structure. For more details, see the discussion
at [1].
Un-embed the net_devices from struct lmac by converting them
into pointers, and allocating them dynamically. Use the leverage
alloc_netdev() to allocate the net_device object at
bgx_lmac_enable().
The free of the device occurs at bgx_lmac_disable().
Do not free_netdevice() if bgx_lmac_enable() fails after lmac->netdev
is allocated, since bgx_lmac_disable() is called if bgx_lmac_enable()
fails, and lmac->netdev will be freed there (similarly to lmac->dmacs).
====================
selftests: net: Switch pmtu.sh to use the internal ovs script.
Currently, if a user wants to run pmtu.sh and cover all the provided test
cases, they need to install the Open vSwitch userspace utilities. This
dependency is difficult for users as well as CI environments, because the
userspace build and setup may require lots of support and devel packages
to be installed, system setup to be correct, and things like permissions
and selinux policies to be properly configured.
The kernel selftest suite includes an ovs-dpctl.py utility which can
interact with the openvswitch module directly. This lets developers and
CI environments run without needing too many extra dependencies - just
the pyroute2 python package.
This series enhances the ovs-dpctl utility to provide support for set()
and tunnel() flow specifiers, better ipv6 handling support, and the
ability to add tunnel vports, and LWT interfaces. Finally, it modifies
the pmtu.sh script to call the ovs-dpctl.py utility rather than the
typical OVS userspace utilities. The pmtu.sh can still fall back on
the Open vSwitch userspace utilities if the ovs-dpctl.py script can't
be used.
====================
Aaron Conole [Tue, 25 Jun 2024 17:22:44 +0000 (13:22 -0400)]
selftests: net: Use the provided dpctl rather than the vswitchd for tests.
The current pmtu test infrastucture requires an installed copy of the
ovs-vswitchd userspace. This means that any automated or constrained
environments may not have the requisite tools to run the tests. However,
the pmtu tests don't require any special classifier processing. Indeed
they are only using the vswitchd in the most basic mode - as a NORMAL
switch.
However, the ovs-dpctl kernel utility can now program all the needed basic
flows to allow traffic to traverse the tunnels and provide support for at
least testing some basic pmtu scenarios. More complicated flow pipelines
can be added to the internal ovs test infrastructure, but that is work for
the future. For now, enable the most common cases - wide mega flows with
no other prerequisites.
Enhance the pmtu testing to try testing using the internal utility, first.
As a fallback, if the internal utility isn't running, then try with the
ovs-vswitchd userspace tools.
Additionally, make sure that when the pyroute2 package is not available
the ovs-dpctl utility will error out to properly signal an error has
occurred and skip using the internal utility.
Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240625172245.233874-7-aconole@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Aaron Conole [Tue, 25 Jun 2024 17:22:43 +0000 (13:22 -0400)]
selftests: openvswitch: Support implicit ipv6 arguments.
The current iteration of IPv6 support requires explicit fields to be set
in addition to not properly support the actual IPv6 addresses properly.
With this change, make it so that the ipv6() bare option is usable to
create wildcarded flows to match broad swaths of ipv6 traffic.
Aaron Conole [Tue, 25 Jun 2024 17:22:42 +0000 (13:22 -0400)]
selftests: openvswitch: Add support for tunnel() key.
This will be used when setting details about the tunnel to use as
transport. There is a difference between the ODP format between tunnel():
the 'key' flag is not actually a flag field, so we don't support it in the
same way that the vswitchd userspace supports displaying it.
Aaron Conole [Tue, 25 Jun 2024 17:22:41 +0000 (13:22 -0400)]
selftests: openvswitch: Add set() and set_masked() support.
These will be used in upcoming commits to set specific attributes for
interacting with tunnels. Since set() will use the key parsing routine, we
also make sure to prepend it with an open paren, for the action parsing to
properly understand it.
Aaron Conole [Tue, 25 Jun 2024 17:22:40 +0000 (13:22 -0400)]
selftests: openvswitch: Refactor actions parsing.
Until recently, the ovs-dpctl utility was used with a limited actions set
and didn't need to have support for multiple similar actions. However,
when adding support for tunnels, it will be important to support multiple
set() actions in a single flow. When printing these actions, the existing
code will be unable to print all of the sets - it will only print the
first.
Refactor this code to be easier to read and support multiple actions of the
same type in an action list.
Aaron Conole [Tue, 25 Jun 2024 17:22:39 +0000 (13:22 -0400)]
selftests: openvswitch: Support explicit tunnel port creation.
The OVS module can operate in conjunction with various types of
tunnel ports. These are created as either explicit tunnel vport
types, OR by creating a tunnel interface which acts as an anchor
for the lightweight tunnel support.
This patch adds the ability to add tunnel ports to an OVS
datapath for testing various scenarios with tunnel ports. With
this addition, the vswitch "plumbing" will at least be able to
push packets around using the tunnel vports. Future patches
will add support for setting required tunnel metadata for lwts
in the datapath. The end goal will be to push packets via these
tunnels, and will be used in an upcoming commit for testing the
path MTU.
Adjacent changes: e3f02f32a050 ("ionic: fix kernel panic due to multi-buffer handling") d9c04209990b ("ionic: Mark error paths in the data path as unlikely")
Jakub Kicinski [Thu, 27 Jun 2024 18:57:40 +0000 (11:57 -0700)]
Merge tag 'wireless-2024-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Just a few changes:
- maintainers: Larry Finger sadly passed away
- maintainers: ath trees are in their group now
- TXQ FQ quantum configuration fix
- TI wl driver: work around stuck FW in AP mode
- mac80211: disable softirqs in some new code
needing that
* tag 'wireless-2024-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
MAINTAINERS: wifi: update ath.git location
MAINTAINERS: Remembering Larry Finger
wifi: mac80211: disable softirqs for queued frame handling
wifi: cfg80211: restrict NL80211_ATTR_TXQ_QUANTUM values
wifi: wlcore: fix wlcore AP mode
====================
Linus Torvalds [Thu, 27 Jun 2024 17:05:35 +0000 (10:05 -0700)]
Merge tag 'net-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from can, bpf and netfilter.
There are a bunch of regressions addressed here, but hopefully nothing
spectacular. We are still waiting the driver fix from Intel, mentioned
by Jakub in the previous networking pull.
Current release - regressions:
- core: add softirq safety to netdev_rename_lock
- tcp: fix tcp_rcv_fastopen_synack() to enter TCP_CA_Loss for failed
TFO
- batman-adv: fix RCU race at module unload time
Previous releases - regressions:
- openvswitch: get related ct labels from its master if it is not
confirmed
- eth: mlxsw: fix memory corruptions on spectrum-4 systems
- eth: ionic: use dev_consume_skb_any outside of napi
Previous releases - always broken:
- netfilter: fully validate NFT_DATA_VALUE on store to data registers
- unix: several fixes for OoB data
- tcp: fix race for duplicate reqsk on identical SYN
- bpf:
- fix may_goto with negative offset
- fix the corner case with may_goto and jump to the 1st insn
- fix overrunning reservations in ringbuf
- can:
- j1939: recover socket queue on CAN bus error during BAM
transmission
- mcp251xfd: fix infinite loop when xmit fails
- dsa: microchip: monitor potential faults in half-duplex mode
- eth: vxlan: pull inner IP header in vxlan_xmit_one()
- eth: ionic: fix kernel panic due to multi-buffer handling
Misc:
- selftest: unix tests refactor and a lot of new cases added"
* tag 'net-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (61 commits)
net: mana: Fix possible double free in error handling path
selftest: af_unix: Check SIOCATMARK after every send()/recv() in msg_oob.c.
af_unix: Fix wrong ioctl(SIOCATMARK) when consumed OOB skb is at the head.
selftest: af_unix: Check EPOLLPRI after every send()/recv() in msg_oob.c
selftest: af_unix: Check SIGURG after every send() in msg_oob.c
selftest: af_unix: Add SO_OOBINLINE test cases in msg_oob.c
af_unix: Don't stop recv() at consumed ex-OOB skb.
selftest: af_unix: Add non-TCP-compliant test cases in msg_oob.c.
af_unix: Don't stop recv(MSG_DONTWAIT) if consumed OOB skb is at the head.
af_unix: Stop recv(MSG_PEEK) at consumed OOB skb.
selftest: af_unix: Add msg_oob.c.
selftest: af_unix: Remove test_unix_oob.c.
tracing/net_sched: NULL pointer dereference in perf_trace_qdisc_reset()
netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers
net: usb: qmi_wwan: add Telit FN912 compositions
tcp: fix tcp_rcv_fastopen_synack() to enter TCP_CA_Loss for failed TFO
ionic: use dev_consume_skb_any outside of napi
net: dsa: microchip: fix wrong register write when masking interrupt
Fix race for duplicate reqsk on identical SYN
ibmvnic: Add tx check to prevent skb leak
...
Linus Torvalds [Thu, 27 Jun 2024 16:34:09 +0000 (09:34 -0700)]
Merge tag 'sound-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This became bigger than usual, as it receives a pile of pending ASoC
fixes. Most of changes are for device-specific issues while there are
a few core fixes that are all rather trivial:
- DMA-engine sync fixes
- Continued MIDI2 conversion fixes
- Various ASoC Intel SOF fixes
- A series of ASoC topology fixes for memory handling
- AMD ACP fix, curing a recent regression, too
- Platform / codec-specific fixes for mediatek, atmel, realtek, etc"
* tag 'sound-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (40 commits)
ASoC: rt5645: fix issue of random interrupt from push-button
ALSA: seq: Fix missing MSB in MIDI2 SPP conversion
ASoC: amd: yc: Fix non-functional mic on ASUS M5602RA
ALSA: hda/realtek: fix mute/micmute LEDs don't work for EliteBook 645/665 G11.
ALSA: hda/realtek: Fix conflicting quirk for PCI SSID 17aa:3820
ALSA: dmaengine_pcm: terminate dmaengine before synchronize
ALSA: hda/relatek: Enable Mute LED on HP Laptop 15-gw0xxx
ALSA: PCM: Allow resume only for suspended streams
ALSA: seq: Fix missing channel at encoding RPN/NRPN MIDI2 messages
ASoC: mediatek: mt8195: Add platform entry for ETDM1_OUT_BE dai link
ASoC: fsl-asoc-card: set priv->pdev before using it
ASoC: amd: acp: move chip->flag variable assignment
ASoC: amd: acp: remove i2s configuration check in acp_i2s_probe()
ASoC: amd: acp: add a null check for chip_pdev structure
ASoC: Intel: soc-acpi: mtl: fix speaker no sound on Dell SKU 0C64
ASoC: q6apm-lpass-dai: close graph on prepare errors
ASoC: cs35l56: Disconnect ASP1 TX sources when ASP1 DAI is hooked up
ASoC: topology: Fix route memory corruption
ASoC: rt722-sdca-sdw: add debounce time for type detection
ASoC: SOF: sof-audio: Skip unprepare for in-use widgets on error rollback
...
Paolo Abeni [Thu, 27 Jun 2024 11:00:50 +0000 (13:00 +0200)]
Merge tag 'nf-24-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains two Netfilter fixes for net:
Patch #1 fixes CONFIG_SYSCTL=n for a patch coming in the previous PR
to move the sysctl toggle to enable SRv6 netfilter hooks from
nf_conntrack to the core, from Jianguo Wu.
Patch #2 fixes a possible pointer leak to userspace due to insufficient
validation of NFT_DATA_VALUE.
Linus found this pointer leak to userspace via zdi-disclosures@ and
forwarded the notice to Netfilter maintainers, he appears as reporter
because whoever found this issue never approached Netfilter
maintainers neither via security@ nor in private.
netfilter pull request 24-06-27
* tag 'nf-24-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers
netfilter: fix undefined reference to 'netfilter_lwtunnel_*' when CONFIG_SYSCTL=n
====================
Ma Ke [Tue, 25 Jun 2024 13:03:14 +0000 (21:03 +0800)]
net: mana: Fix possible double free in error handling path
When auxiliary_device_add() returns error and then calls
auxiliary_device_uninit(), callback function adev_release
calls kfree(madev). We shouldn't call kfree(madev) again
in the error handling path. Set 'madev' to NULL.
Kuniyuki Iwashima [Tue, 25 Jun 2024 01:36:44 +0000 (18:36 -0700)]
af_unix: Fix wrong ioctl(SIOCATMARK) when consumed OOB skb is at the head.
Even if OOB data is recv()ed, ioctl(SIOCATMARK) must return 1 when the
OOB skb is at the head of the receive queue and no new OOB data is queued.
Without fix:
# RUN msg_oob.no_peek.oob ...
# msg_oob.c:305:oob:Expected answ[0] (0) == oob_head (1)
# oob: Test terminated by assertion
# FAIL msg_oob.no_peek.oob
not ok 2 msg_oob.no_peek.oob
With fix:
# RUN msg_oob.no_peek.oob ...
# OK msg_oob.no_peek.oob
ok 2 msg_oob.no_peek.oob
Kuniyuki Iwashima [Tue, 25 Jun 2024 01:36:42 +0000 (18:36 -0700)]
selftest: af_unix: Check SIGURG after every send() in msg_oob.c
When data is sent with MSG_OOB, SIGURG is sent to a process if the
receiver socket has set its owner to the process by ioctl(FIOSETOWN)
or fcntl(F_SETOWN).
This patch adds SIGURG check after every send(MSG_OOB) call.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Now the consumed OOB skb stays at the head of recvq to return a correct
value for ioctl(SIOCATMARK), which is broken now and fixed by a later
patch.
Then, if peer issues recv() with MSG_DONTWAIT, manage_oob() returns NULL,
so recv() ends up with -EAGAIN.
>>> c2.setblocking(False) # This causes -EAGAIN even with available data
>>> c2.recv(5)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
BlockingIOError: [Errno 11] Resource temporarily unavailable
However, next recv() will return the following available data, "world".
>>> c2.recv(5)
b'world'
When the consumed OOB skb is at the head of the queue, we need to fetch
the next skb to fix the weird behaviour.
Note that the issue does not happen without MSG_DONTWAIT because we can
retry after manage_oob().
This patch also adds a test case that covers the issue.
Without fix:
# RUN msg_oob.no_peek.ex_oob_break ...
# msg_oob.c:134:ex_oob_break:AF_UNIX :Resource temporarily unavailable
# msg_oob.c:135:ex_oob_break:Expected:ld
# msg_oob.c:137:ex_oob_break:Expected ret[0] (-1) == expected_len (2)
# ex_oob_break: Test terminated by assertion
# FAIL msg_oob.no_peek.ex_oob_break
not ok 8 msg_oob.no_peek.ex_oob_break
With fix:
# RUN msg_oob.no_peek.ex_oob_break ...
# OK msg_oob.no_peek.ex_oob_break
ok 8 msg_oob.no_peek.ex_oob_break
Yunseong Kim [Mon, 24 Jun 2024 17:33:23 +0000 (02:33 +0900)]
tracing/net_sched: NULL pointer dereference in perf_trace_qdisc_reset()
In the TRACE_EVENT(qdisc_reset) NULL dereference occurred from
qdisc->dev_queue->dev <NULL> ->name
This situation simulated from bunch of veths and Bluetooth disconnection
and reconnection.
During qdisc initialization, qdisc was being set to noop_queue.
In veth_init_queue, the initial tx_num was reduced back to one,
causing the qdisc reset to be called with noop, which led to the kernel
panic.
I've attached the GitHub gist link that C converted syz-execprogram
source code and 3 log of reproduced vmcore-dmesg.
However, without our patch applied, I tested upstream 6.10.0-rc3 kernel
using the qdisc_reset event and the ip command on my qemu virtual machine.
This 2 commands makes always kernel panic.
Linux version: 6.10.0-rc3
[ 0.000000] Linux version 6.10.0-rc3-00164-g44ef20baed8e-dirty
(paran@fedora) (gcc (GCC) 14.1.1 20240522 (Red Hat 14.1.1-4), GNU ld
version 2.41-34.fc40) #20 SMP PREEMPT Sat Jun 15 16:51:25 KST 2024
Yeoreum and I don't know if the patch we wrote will fix the underlying
cause, but we think that priority is to prevent kernel panic happening.
So, we're sending this patch.
====================
Series to deliver Ethernet for STM32MP25
STM32MP25 is STM32 SOC with 2 GMACs instances.
GMAC IP version is SNPS 5.3x.
GMAC IP configure with 2 RX and 4 TX queue.
DMA HW capability register supported
RX Checksum Offload Engine supported
TX Checksum insertion supported
Wake-Up On Lan supported
TSO supported
====================
Christophe Roullier [Mon, 24 Jun 2024 07:10:52 +0000 (09:10 +0200)]
net: stmmac: dwmac-stm32: stm32: add management of stm32mp25 for stm32
Add Ethernet support for STM32MP25.
STM32MP25 is STM32 SOC with 2 GMACs instances.
GMAC IP version is SNPS 5.3x.
GMAC IP configure with 2 RX and 4 TX queue.
DMA HW capability register supported
RX Checksum Offload Engine supported
TX Checksum insertion supported
Wake-Up On Lan supported
TSO supported
Signed-off-by: Christophe Roullier <christophe.roullier@foss.st.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
====================
selftests: drv-net: rss_ctx: add tests for RSS contexts
Add a few tests exercising RSS context API.
In addition to basic sanity checks, tests add RSS contexts,
n-tuple rule to direct traffic to them (based on dst port),
and qstats to make sure traffic landed where we expected.
v2 adds a test for removing contexts out of order. When testing
bnxt - either the new test or running more tests after the overlap
test makes the device act strangely. To the point where it may start
giving out ntuple IDs of 0 for all rules..
$ export NETIF=eth0 REMOTE_...
$ ./drivers/net/hw/rss_ctx.py
KTAP version 1
1..8
ok 1 rss_ctx.test_rss_key_indir
ok 2 rss_ctx.test_rss_context
ok 3 rss_ctx.test_rss_context4
# Increasing queue count 44 -> 66
# Failed to create context 32, trying to test what we got
ok 4 rss_ctx.test_rss_context32 # SKIP Tested only 31 contexts, wanted 32
ok 5 rss_ctx.test_rss_context_overlap
ok 6 rss_ctx.test_rss_context_overlap2
# .. sprays traffic like a headless chicken ..
not ok 7 rss_ctx.test_rss_context_out_of_order
ok 8 rss_ctx.test_rss_context4_create_with_cfg
# Totals: pass:6 fail:1 xfail:0 xpass:0 skip:1 error:0
Jakub Kicinski [Wed, 26 Jun 2024 01:24:56 +0000 (18:24 -0700)]
selftests: drv-net: rss_ctx: add tests for RSS configuration and contexts
Add tests focusing on indirection table configuration and
creating extra RSS contexts in drivers which support it.
$ export NETIF=eth0 REMOTE_...
$ ./drivers/net/hw/rss_ctx.py
KTAP version 1
1..8
ok 1 rss_ctx.test_rss_key_indir
ok 2 rss_ctx.test_rss_context
ok 3 rss_ctx.test_rss_context4
# Increasing queue count 44 -> 66
# Failed to create context 32, trying to test what we got
ok 4 rss_ctx.test_rss_context32 # SKIP Tested only 31 contexts, wanted 32
ok 5 rss_ctx.test_rss_context_overlap
ok 6 rss_ctx.test_rss_context_overlap2
# .. sprays traffic like a headless chicken ..
not ok 7 rss_ctx.test_rss_context_out_of_order
ok 8 rss_ctx.test_rss_context4_create_with_cfg
# Totals: pass:6 fail:1 xfail:0 xpass:0 skip:1 error:0
Note that rss_ctx.test_rss_context_out_of_order fails with the device
I tested with, but it seems to be a device / driver bug.
Jakub Kicinski [Wed, 26 Jun 2024 01:24:55 +0000 (18:24 -0700)]
selftests: drv-net: add ability to wait for at least N packets to load gen
Teach the load generator how to wait for at least given number
of packets to be received. This will be useful for filtering
where we'll want to send a non-trivial number of packets and
make sure they landed in right queues.
Reviewed-by: Breno Leitao <leitao@debian.org> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20240626012456.2326192-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Wed, 26 Jun 2024 01:24:53 +0000 (18:24 -0700)]
selftests: drv-net: try to check if port is in use
We use random ports for communication. As Willem predicted
this leads to occasional failures. Try to check if port is
already in use by opening a socket and binding to that port.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20240626012456.2326192-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linus Torvalds [Thu, 27 Jun 2024 00:51:39 +0000 (17:51 -0700)]
Merge tag 'mm-hotfixes-stable-2024-06-26-17-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"13 hotfixes, 7 are cc:stable.
All are MM related apart from a MAINTAINERS update. There is no
identifiable theme here - just singleton patches in various places"
* tag 'mm-hotfixes-stable-2024-06-26-17-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/memory: don't require head page for do_set_pmd()
mm/page_alloc: Separate THP PCP into movable and non-movable categories
nfs: drop the incorrect assertion in nfs_swap_rw()
mm/migrate: make migrate_pages_batch() stats consistent
MAINTAINERS: TPM DEVICE DRIVER: update the W-tag
selftests/mm:fix test_prctl_fork_exec return failure
mm: convert page type macros to enum
ocfs2: fix DIO failure due to insufficient transaction credits
kasan: fix bad call to unpoison_slab_object
mm: handle profiling for fake memory allocations during compaction
mm/slab: fix 'variable obj_exts set but not used' warning
/proc/pid/smaps: add mseal info for vma
mm: fix incorrect vbq reference in purge_fragmented_block
Pablo Neira Ayuso [Wed, 26 Jun 2024 21:15:38 +0000 (23:15 +0200)]
netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers
register store validation for NFT_DATA_VALUE is conditional, however,
the datatype is always either NFT_DATA_VALUE or NFT_DATA_VERDICT. This
only requires a new helper function to infer the register type from the
set datatype so this conditional check can be removed. Otherwise,
pointer to chain object can be leaked through the registers.
Linus Torvalds [Wed, 26 Jun 2024 22:01:33 +0000 (15:01 -0700)]
Merge tag 'wq-for-6.10-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixes from Tejun Heo:
"Two patches to fix kworker name formatting"
* tag 'wq-for-6.10-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Increase worker desc's length to 32
workqueue: Refactor worker ID formatting and make wq_worker_comm() use full ID string
Takashi Iwai [Wed, 26 Jun 2024 20:02:55 +0000 (22:02 +0200)]
Merge tag 'asoc-fix-v6.10-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.10
A relatively large batch of updates, largely due to the long interval
since I last sent fixes due to various travel and holidays. There's a
lot of driver specific fixes and quirks in here, none of them too major,
and also some fixes for recently introduced memory safety issues in the
topology code.
Alex Bee [Sat, 22 Jun 2024 21:54:16 +0000 (23:54 +0200)]
wifi: brcmfmac: of: Support interrupts-extended
The currently existing of_property_present check for interrupts does not
cover all ways interrupts can be defined in a device tree, e.g.
"interrupts-extended".
In order to support all current and future ways that can be done, drop that
check and call of_irq_parse_one to figure out if an interrupt is defined
and irq_create_of_mapping for the actual mapping and let it be handled by
the interrupt subsystem.
Arend van Spriel [Mon, 17 Jun 2024 12:26:09 +0000 (14:26 +0200)]
wifi: brcmsmac: advertise MFP_CAPABLE to enable WPA3
After being asked about support for WPA3 for BCM43224 chipset it
was found that all it takes is setting the MFP_CAPABLE flag and
mac80211 will take care of all that is needed [1].
Kalle Valo [Wed, 26 Jun 2024 10:26:32 +0000 (13:26 +0300)]
MAINTAINERS: wifi: update ath.git location
ath.git tree has moved to a new location. The old location will be an alias to
the new location and will work at least until end of 2024, but best to update
git trees already now.
Kalle Valo [Tue, 25 Jun 2024 10:39:29 +0000 (13:39 +0300)]
MAINTAINERS: Remembering Larry Finger
We got sad news that Larry is not with us anymore. He was a long time
Linux developer, his first commit was back in 2005 and he has
maintained several wireless drivers over the years. He was known for
patiently supporting Linux users with all sorts of problems they had.
Larry's work helped so many people around the world and I always
enjoyed working with him, even though I sadly never met him.
Takashi Iwai [Wed, 26 Jun 2024 14:51:13 +0000 (16:51 +0200)]
ALSA: seq: Fix missing MSB in MIDI2 SPP conversion
The conversion of SPP to MIDI2 UMP called a wrong function, and the
secondary argument wasn't taken. As a result, MSB of SPP was always
zero. Fix to call the right function.
====================
mlxsw: Reduce memory footprint of mlxsw driver
Amit Cohen writes:
A previous patch-set used page pool to allocate buffers, to simplify the
change, we first used one continuous buffer, which was allocated with
order > 0. This set improves page pool usage to allocate the exact number
of pages which are required for packet.
This change requires using fragmented SKB, till now all the buffer was in
the linear part. Note that 'skb->truesize' is decreased for small packets.
This set significantly reduces memory consumption of mlxsw driver. The
footprint is reduced by 26%.
Patch set overview:
Patch #1 calculates number of scatter/gather entries and stores the value
Patch #2 converts the driver to use fragmented buffers
====================
Amit Cohen [Tue, 25 Jun 2024 13:47:35 +0000 (15:47 +0200)]
mlxsw: pci: Use fragmented buffers
WQE (Work Queue Element) includes 3 scatter/gather entries for buffers.
The buffer can be split into 3 parts, software should set address and byte
count of each part.
A previous patch-set used page pool to allocate buffers, to simplify the
change, we first used one continuous buffer, which was allocated with
order > 0. This patch improves page pool usage to allocate the exact
number of pages which are required for packet.
As part of init, fill WQE.address[x] and WQE.byte_count* with pages which
are allocated from the pool. Fill x entries according to number of
scatter/gather entries which are required for maximum packet size. When a
packet is received, check the actual size and replace only the used pages.
Save bytes for software overhead only as part of the first entry.
This change also requires using fragmented SKB, till now all the buffer
was in the linear part. Note that 'skb->truesize' is decreased for small
packets.
For now the maximum buffer size is 3 * PAGE_SIZE which is enough, in
case that the driver will support larger MTU, we can use 'order' to
allocate more than one page per scatter/gather entry.
This change significantly reduces memory consumption of mlxsw driver. The
footprint is reduced by 26%.
Amit Cohen [Tue, 25 Jun 2024 13:47:34 +0000 (15:47 +0200)]
mlxsw: pci: Store number of scatter/gather entries for maximum packet size
A previous patch-set used page pool for Rx buffers allocations. To
simplify the change, we first used page pool for one allocation per
packet - one continuous buffer is allocated for each packet. This can be
improved by using fragmented buffers, then memory consumption will be
significantly reduced.
WQE (Work Queue Element) includes up to 3 scatter/gather entries for
data. As preparation for fragmented buffer usage, calculate number of
scatter/gather entries which are required for packet according to
maximum MTU and store it for future use. For now use PAGE_SIZE for each
entry, which means that maximum buffer size is 3 * PAGE_SIZE. This is
enough for the maximum MTU which is supported in the driver now (10K).
Warn in an unlikely case of maximum MTU which requires more than 3 pages,
for now this warn should not happen with standard page size (>=4K) and
maximum MTU (10K).
Uwe Kleine-König [Tue, 25 Jun 2024 08:38:53 +0000 (10:38 +0200)]
net: Drop explicit initialization of struct i2c_device_id::driver_data to 0
These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.
This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.
While add it, also remove commas after the sentinel entries.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Reviewed-by: Petr Machata <petrm@nvidia.com> # For mlxsw Reviewed-by: Kory Maincent <Kory.maincent@bootlin.com> Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au> # for mctp-i2c Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://patch.msgid.link/20240625083853.2205977-2-u.kleine-koenig@baylibre.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Zijun Hu [Thu, 13 Jun 2024 14:04:36 +0000 (22:04 +0800)]
net: rfkill: Correct return value in invalid parameter case
rfkill_set_hw_state_reason() does not return current combined
block state when its parameter @reason is invalid, that is
wrong according to its comments, fix it by correcting the
value returned.
Zong-Zhe Yang [Mon, 17 Jun 2024 11:52:17 +0000 (19:52 +0800)]
wifi: mac80211: fix NULL dereference at band check in starting tx ba session
In MLD connection, link_data/link_conf are dynamically allocated. They
don't point to vif->bss_conf. So, there will be no chanreq assigned to
vif->bss_conf and then the chan will be NULL. Tweak the code to check
ht_supported/vht_supported/has_he/has_eht on sta deflink.
Crash log (with rtw89 version under MLO development):
[ 9890.526087] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 9890.526102] #PF: supervisor read access in kernel mode
[ 9890.526105] #PF: error_code(0x0000) - not-present page
[ 9890.526109] PGD 0 P4D 0
[ 9890.526114] Oops: 0000 [#1] PREEMPT SMP PTI
[ 9890.526119] CPU: 2 PID: 6367 Comm: kworker/u16:2 Kdump: loaded Tainted: G OE 6.9.0 #1
[ 9890.526123] Hardware name: LENOVO 2356AD1/2356AD1, BIOS G7ETB3WW (2.73 ) 11/28/2018
[ 9890.526126] Workqueue: phy2 rtw89_core_ba_work [rtw89_core]
[ 9890.526203] RIP: 0010:ieee80211_start_tx_ba_session (net/mac80211/agg-tx.c:618 (discriminator 1)) mac80211
[ 9890.526279] Code: f7 e8 d5 93 3e ea 48 83 c4 28 89 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 49 8b 84 24 e0 f1 ff ff 48 8b 80 90 1b 00 00 <83> 38 03 0f 84 37 fe ff ff bb ea ff ff ff eb cc 49 8b 84 24 10 f3
All code
========
0: f7 e8 imul %eax
2: d5 (bad)
3: 93 xchg %eax,%ebx
4: 3e ea ds (bad)
6: 48 83 c4 28 add $0x28,%rsp
a: 89 d8 mov %ebx,%eax
c: 5b pop %rbx
d: 41 5c pop %r12
f: 41 5d pop %r13
11: 41 5e pop %r14
13: 41 5f pop %r15
15: 5d pop %rbp
16: c3 retq
17: cc int3
18: cc int3
19: cc int3
1a: cc int3
1b: 49 8b 84 24 e0 f1 ff mov -0xe20(%r12),%rax
22: ff
23: 48 8b 80 90 1b 00 00 mov 0x1b90(%rax),%rax
2a:* 83 38 03 cmpl $0x3,(%rax) <-- trapping instruction
2d: 0f 84 37 fe ff ff je 0xfffffffffffffe6a
33: bb ea ff ff ff mov $0xffffffea,%ebx
38: eb cc jmp 0x6
3a: 49 rex.WB
3b: 8b .byte 0x8b
3c: 84 24 10 test %ah,(%rax,%rdx,1)
3f: f3 repz
Johannes Berg [Tue, 25 Jun 2024 16:51:14 +0000 (19:51 +0300)]
wifi: iwlwifi: trans: make bad state warnings
Kalle reported that this triggers very occasionally, but
we don't even know which place, except that it wasn't one
with a warning. Make all of them warnings since this is
really not meant to happen and indicates driver bugs.
Johannes Berg [Tue, 25 Jun 2024 16:51:09 +0000 (19:51 +0300)]
wifi: iwlwifi: mvm: use IWL_FW_CHECK for link ID check
The lookup function iwl_mvm_rcu_fw_link_id_to_link_conf() is
normally called with input from the firmware, so it should use
IWL_FW_CHECK() instead of WARN_ON().
Johannes Berg [Tue, 25 Jun 2024 16:51:08 +0000 (19:51 +0300)]
wifi: iwlwifi: mvm: don't flush BSSes on restart with MLD API
If the firmware has MLD APIs, it will handle all timing and we
don't need to give it timestamps. Therefore, we don't care about
the timestamps stored in the BSS table, so there's no need to
flush the BSS table.