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Marc Kleine-Budde <mkl@pengutronix.de> says:
This patch series tries to work around erratum DS80000789E 6 of the
mcp2518fd, found by Stefan Althöfer, the other variants of the chip
family (mcp2517fd and mcp251863) are probably also affected.
Erratum DS80000789E 6 says "reading of the FIFOCI bits in the FIFOSTA
register for an RX FIFO may be corrupted". However observation shows
that this problem is not limited to RX FIFOs but also effects the TEF
FIFO.
In the bad case, the driver reads a too large head index. In the
original code, the driver always trusted the read value.
For the RX FIDO this caused old, already processed CAN frames or new,
incompletely written CAN frames to be (re-)processed.
To work around this issue, keep a per FIFO timestamp of the last valid
received CAN frame and compare against the timestamp of every received
CAN frame.
Further tests showed that this workaround can recognize old CAN
frames, but a small time window remains in which partially written CAN
frames are not recognized but then processed. These CAN frames have
the correct data and time stamps, but the DLC has not yet been
updated.
For the TEF FIFO the original driver already detects the error, update
the error handling with the knowledge that it is causes by this erratum.
Link: https://lore.kernel.org/all/20240628-mcp251xfd-workaround-erratum-6-v4-0-53586f168524@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This patch updates the workaround for a problem similar to erratum
DS80000789E 6 of the mcp2518fd, the other variants of the chip
family (mcp2517fd and mcp251863) are probably also affected.
Erratum DS80000789E 6 says "reading of the FIFOCI bits in the FIFOSTA
register for an RX FIFO may be corrupted". However observation shows
that this problem is not limited to RX FIFOs but also effects the TEF
FIFO.
In the bad case, the driver reads a too large head index. As the FIFO
is implemented as a ring buffer, this results in re-handling old CAN
transmit complete events.
Every transmit complete event contains with a sequence number that
equals to the sequence number of the corresponding TX request. This
way old TX complete events can be detected.
If the original driver detects a non matching sequence number, it
prints an info message and tries again later. As wrong sequence
numbers can be explained by the erratum DS80000789E 6, demote the info
message to debug level, streamline the code and update the comments.
Keep the behavior: If an old CAN TX complete event is detected, abort
the iteration and mark the number of valid CAN TX complete events as
processed in the chip by incrementing the FIFO's tail index.
Cc: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Cc: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This is a preparatory patch to work around a problem similar to
erratum DS80000789E 6 of the mcp2518fd, the other variants of the chip
family (mcp2517fd and mcp251863) are probably also affected.
Erratum DS80000789E 6 says "reading of the FIFOCI bits in the FIFOSTA
register for an RX FIFO may be corrupted". However observation shows
that this problem is not limited to RX FIFOs but also effects the TEF
FIFO.
When handling the TEF interrupt, the driver reads the FIFO header
index from the TEF FIFO STA register of the chip.
In the bad case, the driver reads a too large head index. In the
original code, the driver always trusted the read value, which caused
old CAN transmit complete events that were already processed to be
re-processed.
Instead of reading and trusting the head index, read the head index
and calculate the number of CAN frames that were supposedly received -
replace mcp251xfd_tef_ring_update() with mcp251xfd_get_tef_len().
The mcp251xfd_handle_tefif() function reads the CAN transmit complete
events from the chip, iterates over them and pushes them into the
network stack. The original driver already contains code to detect old
CAN transmit complete events, that will be updated in the next patch.
Cc: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Cc: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This patch tries to works around erratum DS80000789E 6 of the
mcp2518fd, the other variants of the chip family (mcp2517fd and
mcp251863) are probably also affected.
In the bad case, the driver reads a too large head index. In the
original code, the driver always trusted the read value, which caused
old, already processed CAN frames or new, incompletely written CAN
frames to be (re-)processed.
To work around this issue, keep a per FIFO timestamp [1] of the last
valid received CAN frame and compare against the timestamp of every
received CAN frame. If an old CAN frame is detected, abort the
iteration and mark the number of valid CAN frames as processed in the
chip by incrementing the FIFO's tail index.
Further tests showed that this workaround can recognize old CAN
frames, but a small time window remains in which partially written CAN
frames [2] are not recognized but then processed. These CAN frames
have the correct data and time stamps, but the DLC has not yet been
updated.
[1] As the raw timestamp overflows every 107 seconds (at the usual
clock rate of 40 MHz) convert it to nanoseconds with the
timecounter framework and use this to detect stale CAN frames.
Link: https://lore.kernel.org/all/BL3PR11MB64844C1C95CA3BDADAE4D8CCFBC99@BL3PR11MB6484.namprd11.prod.outlook.com [2]
Reported-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Closes: https://lore.kernel.org/all/FR0P281MB1966273C216630B120ABB6E197E89@FR0P281MB1966.DEUP281.PROD.OUTLOOK.COM
Tested-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Tested-by: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This is a preparatory patch to work around erratum DS80000789E 6 of
the mcp2518fd, the other variants of the chip family (mcp2517fd and
mcp251863) are probably also affected.
When handling the RX interrupt, the driver iterates over all pending
FIFOs (which are implemented as ring buffers in hardware) and reads
the FIFO header index from the RX FIFO STA register of the chip.
In the bad case, the driver reads a too large head index. In the
original code, the driver always trusted the read value, which caused
old CAN frames that were already processed, or new, incompletely
written CAN frames to be (re-)processed.
Instead of reading and trusting the head index, read the head index
and calculate the number of CAN frames that were supposedly received -
replace mcp251xfd_rx_ring_update() with mcp251xfd_get_rx_len().
The mcp251xfd_handle_rxif_ring() function reads the received CAN
frames from the chip, iterates over them and pushes them into the
network stack. Prepare that the iteration can be stopped if an old CAN
frame is detected. The actual code to detect old or incomplete frames
and abort will be added in the next patch.
Link: https://lore.kernel.org/all/BL3PR11MB64844C1C95CA3BDADAE4D8CCFBC99@BL3PR11MB6484.namprd11.prod.outlook.com
Reported-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Closes: https://lore.kernel.org/all/FR0P281MB1966273C216630B120ABB6E197E89@FR0P281MB1966.DEUP281.PROD.OUTLOOK.COM
Tested-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Tested-by: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This is a preparation patch.
Sending the UINC messages followed by incrementing the tail pointer
will be called in more than one place in upcoming patches, so factor
this out into a separate function.
Also make mcp251xfd_handle_rxif_ring_uinc() safe to be called with a
"len" of 0.
Tested-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Tested-by: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The mcp251xfd chip is configured to provide a timestamp with each
received and transmitted CAN frame. The timestamp is derived from the
internal free-running timer, which can also be read from the TBC
register via SPI. The timer is 32 bits wide and is clocked by the
external oscillator (typically 20 or 40 MHz).
To avoid confusion, we call this timestamp "timestamp_raw" or "ts_raw"
for short.
Using the timecounter framework, the "ts_raw" is converted to 64 bit
nanoseconds since the epoch. This is what we call "timestamp".
This is a preparation for the next patches which use the "timestamp"
to work around a bug where so far only the "ts_raw" is used.
Tested-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Tested-by: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The mcp251xfd wakes up from Low Power or Sleep Mode when SPI activity
is detected. To avoid this, make sure that the timestamp worker is
stopped before shutting down the chip.
Split the starting of the timestamp worker out of
mcp251xfd_timestamp_init() into the separate function
mcp251xfd_timestamp_start().
Call mcp251xfd_timestamp_init() before mcp251xfd_chip_start(), move
mcp251xfd_timestamp_start() to mcp251xfd_chip_start(). In this way,
mcp251xfd_timestamp_stop() can be called unconditionally by
mcp251xfd_chip_stop().
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Since the errata references have been added to the driver, new errata
sheets have been published. Update the references for the mcp2517fd
and mcp2518fd. For completeness add references for the mcp251863.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add support for the Xylanta SAINT3 product family.
Cc: Andy Jackson <andy@xylanta.com>
Cc: Ken Aitchison <ken@xylanta.com>
Tested-by: Andy Jackson <andy@xylanta.com>
Link: https://lore.kernel.org/all/20240625140353.769373-1-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
'struct m_can_ops' is not modified in these drivers.
Constifying this structure moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
4806 520 0 5326 14ce drivers/net/can/m_can/m_can_pci.o
After:
=====
text data bss dec hex filename
4862 464 0 5326 14ce drivers/net/can/m_can/m_can_pci.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/all/a17b96d1be5341c11f263e1e45c9de1cb754e416.1719172843.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Geert Uytterhoeven <geert+renesas@glider.be> says:
This series contains some improvements and cleanups for the R-Car
CAN-FD driver. It has been tested on R-Car V4H (White Hawk and White
Hawk Single).
Link: https://lore.kernel.org/all/cover.1716973640.git.geert+renesas@glider.be
[mkl: fixed typo in cover letter]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Replace the printing of internal numerical values by the printing of
strings reflecting their meaning, to make the message self-explanatory.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa@kernel.org>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/14c8c5ce026e9fec128404706d1c73c8ffa11ced.1716973640.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The main CAN clock is either the internal CANFD clock, or the external
CAN clock. Hence replace the two-valued enum by a simple boolean flag.
Consolidate all CANFD clock handling inside a single branch.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/2cf38c10b83c8e5c04d68b17a930b6d9dbf66f40.1716973640.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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).
Link: https://lore.kernel.org/all/20240229225910.79e224cf@kernel.org/ [1]
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240626173503.87636-1-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Aaron Conole says:
====================
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.
====================
Link: https://patch.msgid.link/20240625172245.233874-1-aconole@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The pmtu testing will require that the OVS module is installed,
so do that.
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20240625172245.233874-8-aconole@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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>
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.
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20240625172245.233874-6-aconole@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.
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/20240625172245.233874-5-aconole@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20240625172245.233874-4-aconole@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20240625172245.233874-3-aconole@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20240625172245.233874-2-aconole@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
With ARCH=s390, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/s390/net/lcs.o
Add the missing invocation of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Acked-by: Alexandra Winter <wintera@linux.ibm.com>
Link: https://patch.msgid.link/20240625-md-s390-drivers-s390-net-v2-1-5a8a2b2f2ae3@quicinc.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use display hints for formatting scalar attrs. This is specifically
useful for formatting IPv4 addresses carried typically as u32.
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20240626201234.2572964-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Cross-merge networking fixes after downstream PR.
No conflicts.
Adjacent changes:
e3f02f32a050 ("ionic: fix kernel panic due to multi-buffer handling")
d9c04209990b ("ionic: Mark error paths in the data path as unlikely")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- 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
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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
====================
Link: https://patch.msgid.link/20240627083627.15312-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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
Current release - new code bugs:
Previous releases - regressions:
- openvswitch: get related ct labels from its master if it is not confirmed
- eth: bonding: fix incorrect software timestamping report
- 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
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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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: bonding: fix incorrect software timestamping report
- 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
...
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
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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
...
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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
====================
Link: https://patch.msgid.link/20240626233845.151197-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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.
Fixes: a69839d4327d ("net: mana: Add support for auxiliary device")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://patch.msgid.link/20240625130314.2661257-1-make24@iscas.ac.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Kuniyuki Iwashima says:
====================
af_unix: Fix bunch of MSG_OOB bugs and add new tests.
This series rewrites the selftest for AF_UNIX MSG_OOB and fixes
bunch of bugs that AF_UNIX behaves differently compared to TCP.
Note that the test discovered few more bugs in TCP side, which
will be fixed in another series.
====================
Link: https://lore.kernel.org/r/20240625013645.45034-1-kuniyu@amazon.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
To catch regression, let's check ioctl(SIOCATMARK) after every
send() and recv() calls.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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
Fixes: 314001f0bf92 ("af_unix: Add OOB support")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When OOB data is in recvq, we can detect it with epoll by checking
EPOLLPRI.
This patch add checks for EPOLLPRI after every send() and recv() in
all test cases.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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>
When SO_OOBINLINE is enabled on a socket, MSG_OOB can be recv()ed
without MSG_OOB flag, and ioctl(SIOCATMARK) will behaves differently.
This patch adds some test cases for SO_OOBINLINE.
Note the new test cases found two bugs in TCP.
1) After reading OOB data with non-inline mode, we can re-read
the data by setting SO_OOBINLINE.
# RUN msg_oob.no_peek.inline_oob_ahead_break ...
# msg_oob.c:146:inline_oob_ahead_break:AF_UNIX :world
# msg_oob.c:147:inline_oob_ahead_break:TCP :oworld
# OK msg_oob.no_peek.inline_oob_ahead_break
ok 14 msg_oob.no_peek.inline_oob_ahead_break
2) The head OOB data is dropped if SO_OOBINLINE is disabled
if a new OOB data is queued.
# RUN msg_oob.no_peek.inline_ex_oob_drop ...
# msg_oob.c:171:inline_ex_oob_drop:AF_UNIX :x
# msg_oob.c:172:inline_ex_oob_drop:TCP :y
# msg_oob.c:146:inline_ex_oob_drop:AF_UNIX :y
# msg_oob.c:147:inline_ex_oob_drop:TCP :Resource temporarily unavailable
# OK msg_oob.no_peek.inline_ex_oob_drop
ok 17 msg_oob.no_peek.inline_ex_oob_drop
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Currently, recv() is stopped at a consumed OOB skb even if a new
OOB skb is queued and we can ignore the old OOB skb.
>>> from socket import *
>>> c1, c2 = socket(AF_UNIX, SOCK_STREAM)
>>> c1.send(b'hellowor', MSG_OOB)
8
>>> c2.recv(1, MSG_OOB) # consume OOB data stays at middle of recvq.
b'r'
>>> c1.send(b'ld', MSG_OOB)
2
>>> c2.recv(10) # recv() stops at the old consumed OOB
b'hellowo' # should be 'hellowol'
manage_oob() should not stop recv() at the old consumed OOB skb if
there is a new OOB data queued.
Note that TCP behaviour is apparently wrong in this test case because
we can recv() the same OOB data twice.
Without fix:
# RUN msg_oob.no_peek.ex_oob_ahead_break ...
# msg_oob.c:138:ex_oob_ahead_break:AF_UNIX :hellowo
# msg_oob.c:139:ex_oob_ahead_break:Expected:hellowol
# msg_oob.c:141:ex_oob_ahead_break:Expected ret[0] (7) == expected_len (8)
# ex_oob_ahead_break: Test terminated by assertion
# FAIL msg_oob.no_peek.ex_oob_ahead_break
not ok 11 msg_oob.no_peek.ex_oob_ahead_break
With fix:
# RUN msg_oob.no_peek.ex_oob_ahead_break ...
# msg_oob.c:146:ex_oob_ahead_break:AF_UNIX :hellowol
# msg_oob.c:147:ex_oob_ahead_break:TCP :helloworl
# OK msg_oob.no_peek.ex_oob_ahead_break
ok 11 msg_oob.no_peek.ex_oob_ahead_break
Fixes: 314001f0bf92 ("af_unix: Add OOB support")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
While testing, I found some weird behaviour on the TCP side as well.
For example, TCP drops the preceding OOB data when queueing a new
OOB data if the old OOB data is at the head of recvq.
# RUN msg_oob.no_peek.ex_oob_drop ...
# msg_oob.c:146:ex_oob_drop:AF_UNIX :x
# msg_oob.c:147:ex_oob_drop:TCP :Resource temporarily unavailable
# msg_oob.c:146:ex_oob_drop:AF_UNIX :y
# msg_oob.c:147:ex_oob_drop:TCP :Invalid argument
# OK msg_oob.no_peek.ex_oob_drop
ok 9 msg_oob.no_peek.ex_oob_drop
# RUN msg_oob.no_peek.ex_oob_drop_2 ...
# msg_oob.c:146:ex_oob_drop_2:AF_UNIX :x
# msg_oob.c:147:ex_oob_drop_2:TCP :Resource temporarily unavailable
# OK msg_oob.no_peek.ex_oob_drop_2
ok 10 msg_oob.no_peek.ex_oob_drop_2
This patch allows AF_UNIX's MSG_OOB implementation to produce different
results from TCP when operations are guarded with tcp_incompliant{}.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Let's say a socket send()s "hello" with MSG_OOB and "world" without flags,
>>> from socket import *
>>> c1, c2 = socketpair(AF_UNIX)
>>> c1.send(b'hello', MSG_OOB)
5
>>> c1.send(b'world')
5
and its peer recv()s "hell" and "o".
>>> c2.recv(10)
b'hell'
>>> c2.recv(1, MSG_OOB)
b'o'
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
Fixes: 314001f0bf92 ("af_unix: Add OOB support")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
After consuming OOB data, recv() reading the preceding data must break at
the OOB skb regardless of MSG_PEEK.
Currently, MSG_PEEK does not stop recv() for AF_UNIX, and the behaviour is
not compliant with TCP.
>>> from socket import *
>>> c1, c2 = socketpair(AF_UNIX)
>>> c1.send(b'hello', MSG_OOB)
5
>>> c1.send(b'world')
5
>>> c2.recv(1, MSG_OOB)
b'o'
>>> c2.recv(9, MSG_PEEK) # This should return b'hell'
b'hellworld' # even with enough buffer.
Let's fix it by returning NULL for consumed skb and unlinking it only if
MSG_PEEK is not specified.
This patch also adds test cases that add recv(MSG_PEEK) before each recv().
Without fix:
# RUN msg_oob.peek.oob_ahead_break ...
# msg_oob.c:134:oob_ahead_break:AF_UNIX :hellworld
# msg_oob.c:135:oob_ahead_break:Expected:hell
# msg_oob.c:137:oob_ahead_break:Expected ret[0] (9) == expected_len (4)
# oob_ahead_break: Test terminated by assertion
# FAIL msg_oob.peek.oob_ahead_break
not ok 13 msg_oob.peek.oob_ahead_break
With fix:
# RUN msg_oob.peek.oob_ahead_break ...
# OK msg_oob.peek.oob_ahead_break
ok 13 msg_oob.peek.oob_ahead_break
Fixes: 314001f0bf92 ("af_unix: Add OOB support")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
AF_UNIX's MSG_OOB functionality lacked thorough testing, and we found
some bizarre behaviour.
The new selftest validates every MSG_OOB operation against TCP as a
reference implementation.
This patch adds only a few tests with basic send() and recv() that
do not fail.
The following patches will add more test cases for SO_OOBINLINE, SIGURG,
EPOLLPRI, and SIOCATMARK.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
test_unix_oob.c does not fully cover AF_UNIX's MSG_OOB functionality,
thus there are discrepancies between TCP behaviour.
Also, the test uses fork() to create message producer, and it's not
easy to understand and add more test cases.
Let's remove test_unix_oob.c and rewrite a new test.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Christophe Roullier says:
====================
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
====================
Link: https://lore.kernel.org/r/20240624071052.118042-1-christophe.roullier@foss.st.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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>
