While stress testing UDP senders on a host with expensive indirect
calls, I found cpus processing TX completions where showing
a very high cost (20%) in sock_wfree() due to
CONFIG_MITIGATION_RETPOLINE=y.
Take care of TCP and UDP TX destructors and use INDIRECT_CALL_3() macro.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Tested-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20251014171907.3554413-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This test fails the first time I am running it after a fresh virtme-ng boot.
tcp_user_timeout_user-timeout-probe.pkt:33: runtime error in write call: Expected result -1 but got 24 with errno 2 (No such file or directory)
Tweaks the timings a bit, to reduce flakiness.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Soham Chakradeo <sohamch@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Tested-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20251014171907.3554413-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add documentation for the interconnect and interconnect-names
properties required when voting for AHB and AXI buses.
Suggested-by: Andrew Halaney <ahalaney@redhat.com>
Signed-off-by: Sagar Cheluvegowda <quic_scheluve@quicinc.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20251015-topic-qc_stmmac_icc_bindings-v5-1-da39126cff28@oss.qualcomm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add Ethernet controller support for Eswin's eic7700 SoC. The driver
implements hardware initialization, clock configuration, delay
adjustment functions based on DWC Ethernet controller, and supports
device tree configuration and platform driver integration.
Signed-off-by: Zhi Li <lizhi2@eswincomputing.com>
Signed-off-by: Shangjuan Wei <weishangjuan@eswincomputing.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20251015114101.1218-1-weishangjuan@eswincomputing.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Russell King says:
====================
net: stmmac: more cleanups
The subject for the cover message is wearing thin as I've used it a
number of times, but the scope for cleaning up the driver continues,
and continue it will do, because this is just a small fraction of the
queue.
1. make a better job of one of my previous commits, moving the holding
of the lock into stmmac_mdio.c
2. move the mac_finish() method to be in-order with the layout of
struct phylink_mac_ops - this order was chosen because it reflects
the order that the methods are called, thus making the flow more
obvious when reading code.
3. continuing on the "removal of stuff that doesn't need to happen",
patch 3 removes the phylink_speed_(up|down) out of the path that
is used for MTU changes - we really don't need to fiddle with the
PHY advertisement when changing the MTU!
4. clean up tc_init()'s initialisation of flow_entries_max - this is
the sole place that this is written, and we might as well make the
code more easy to follow.
5. stmmac_phy_setup() really confuses me when I read the code, it's
not really about PHY setup, but about phylink setup. So, name its
name reflect its functionality.
====================
Link: https://patch.msgid.link/aO_HIwT_YvxkDS8D@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
stmmac_phy_setup() does not set up any PHY, but does setup phylink.
Rename this function to stmmac_phylink_setup() to reflect more what
it is doing.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1v945d-0000000Ameh-3Bs7@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
To make future changes easier, rearrange the use of dma_cap->l3l4fnum
vs priv->flow_entries_max.
Always initialise priv->flow_entries_max from dma_cap->l3l4fnum, then
use priv->flow_entries_max to determine whether we allocate
priv->flow_entries and set it up.
This change is safe because tc_init() is only called once from
stmmac_dvr_probe().
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1v945Y-0000000Ameb-2gDI@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There is no need to do the speed-down, speed-up dance when changing
the MTU as there is little power saving that can be gained from such
a brief interval between these, and the autonegotiation they cause
takes much longer.
Move the calls to phylink_speed_up() and phylink_speed_down() into
stmmac_open() and stmmac_release() respectively, reducing the work
done in the __-variants of these functions.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1v945T-0000000AmeV-2BvU@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Place the .mac_finish() initialiser and implementation after the
.mac_config() initialiser and method which reflects the order that
they appear in struct phylink_mac_ops, and the order in which they
are called. This keeps logically similar code together.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1v945O-0000000AmeP-1k0t@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Rather than dwc-qos-eth manipulating the MDIO bus lock directly, add
helpers to the stmmac MDIO layer and use them in dwc-qos-eth. This
improves my commit 87f43e6f06 ("net: stmmac: dwc-qos: calibrate tegra
with mdio bus idle").
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1v945J-0000000AmeJ-1GOb@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, it is possible to configure the interlink
port, but no way to read it back from userspace.
Add it to the output of hsr_fill_info(), so it can be
read from userspace, for example:
$ ip -d link show hsr0
12: hsr0: <BROADCAST,MULTICAST> mtu ...
...
hsr slave1 veth0 slave2 veth1 interlink veth2 ...
Signed-off-by: Jan Vaclav <jvaclav@redhat.com>
Reviewed-by: Fernando Fernandez Mancera <fmancera@suse.de>
Link: https://patch.msgid.link/20251015101001.25670-2-jvaclav@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In cgx_probe() when pci_alloc_irq_vectors() fails the error value will
be negative and that check is sufficient.
err = pci_alloc_irq_vectors(pdev, nvec, nvec, PCI_IRQ_MSIX);
if (err < 0 || err != nvec) {
...
}
When pci_alloc_irq_vectors() fail to allocate nvec number of vectors,
-ENOSPC is returned, so it would be safe to remove the check that
compares err with nvec.
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251015090117.1557870-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, netdevsim only sets dev->features, which makes the ESP features
fixed. For example:
# ethtool -k eni0np1 | grep esp
tx-esp-segmentation: on [fixed]
esp-hw-offload: on [fixed]
esp-tx-csum-hw-offload: on [fixed]
This patch adds the ESP features to hw_features, allowing them to be
changed manually. For example:
# ethtool -k eni0np1 | grep esp
tx-esp-segmentation: on
esp-hw-offload: on
esp-tx-csum-hw-offload: on
Suggested-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20251015083649.54744-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The MDIO read callback xgbe_phy_mii_read_c45() can propagate its return
value up through phylink_mii_ioctl() to user space via netdev ioctls such
as SIOCGMIIREG. Returning ENOTSUPP results in user space seeing
"Unknown error", since ENOTSUPP is not a standard errno value.
Replace ENOTSUPP with EOPNOTSUPP to align with the MDIO core’s
usage and ensure user space receives a proper "Operation not supported"
error instead of an unknown code.
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20251015025751.1532149-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - regressions:
- udp: do not use skb_release_head_state() before skb_attempt_defer_free()
- gro_cells: use nested-BH locking for gro_cell
- dpll: zl3073x: increase maximum size of flash utility
Previous releases - regressions:
- core: fix lockdep splat on device unregister
- tcp: fix tcp_tso_should_defer() vs large RTT
- tls:
- don't rely on tx_work during send()
- wait for pending async decryptions if tls_strp_msg_hold fails
- can: j1939: add missing calls in NETDEV_UNREGISTER notification handler
- eth: lan78xx: fix lost EEPROM write timeout in lan78xx_write_raw_eeprom
Previous releases - always broken:
- ip6_tunnel: prevent perpetual tunnel growth
- dpll: zl3073x: handle missing or corrupted flash configuration
- can: m_can: fix pm_runtime and CAN state handling
- eth:ixgbe: fix too early devlink_free() in ixgbe_remove()
- eth: ixgbevf: fix mailbox API compatibility
- eth: gve: Check valid ts bit on RX descriptor before hw timestamping
- eth: idpf: cleanup remaining SKBs in PTP flows
- eth: r8169: fix packet truncation after S4 resume on RTL8168H/RTL8111H
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from CAN
Current release - regressions:
- udp: do not use skb_release_head_state() before
skb_attempt_defer_free()
- gro_cells: use nested-BH locking for gro_cell
- dpll: zl3073x: increase maximum size of flash utility
Previous releases - regressions:
- core: fix lockdep splat on device unregister
- tcp: fix tcp_tso_should_defer() vs large RTT
- tls:
- don't rely on tx_work during send()
- wait for pending async decryptions if tls_strp_msg_hold fails
- can: j1939: add missing calls in NETDEV_UNREGISTER notification
handler
- eth: lan78xx: fix lost EEPROM write timeout in
lan78xx_write_raw_eeprom
Previous releases - always broken:
- ip6_tunnel: prevent perpetual tunnel growth
- dpll: zl3073x: handle missing or corrupted flash configuration
- can: m_can: fix pm_runtime and CAN state handling
- eth:
- ixgbe: fix too early devlink_free() in ixgbe_remove()
- ixgbevf: fix mailbox API compatibility
- gve: Check valid ts bit on RX descriptor before hw timestamping
- idpf: cleanup remaining SKBs in PTP flows
- r8169: fix packet truncation after S4 resume on RTL8168H/RTL8111H"
* tag 'net-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (50 commits)
udp: do not use skb_release_head_state() before skb_attempt_defer_free()
net: usb: lan78xx: fix use of improperly initialized dev->chipid in lan78xx_reset
netdevsim: set the carrier when the device goes up
selftests: tls: add test for short splice due to full skmsg
selftests: net: tls: add tests for cmsg vs MSG_MORE
tls: don't rely on tx_work during send()
tls: wait for pending async decryptions if tls_strp_msg_hold fails
tls: always set record_type in tls_process_cmsg
tls: wait for async encrypt in case of error during latter iterations of sendmsg
tls: trim encrypted message to match the plaintext on short splice
tg3: prevent use of uninitialized remote_adv and local_adv variables
MAINTAINERS: new entry for IPv6 IOAM
gve: Check valid ts bit on RX descriptor before hw timestamping
net: core: fix lockdep splat on device unregister
MAINTAINERS: add myself as maintainer for b53
selftests: net: check jq command is supported
net: airoha: Take into account out-of-order tx completions in airoha_dev_xmit()
tcp: fix tcp_tso_should_defer() vs large RTT
r8152: add error handling in rtl8152_driver_init
usbnet: Fix using smp_processor_id() in preemptible code warnings
...
- Do not print an error message (and assume that the General Purpose Log
Directory log page is not supported) for a device that reports a bogus
General Purpose Logging Version. Unsurprisingly, many vendors fail to
report the only valid General Purpose Logging Version (Damien)
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Merge tag 'ata-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fix from Niklas Cassel:
- Do not print an error message (and assume that the General Purpose
Log Directory log page is not supported) for a device that reports a
bogus General Purpose Logging Version.
Unsurprisingly, many vendors fail to report the only valid General
Purpose Logging Version (Damien)
* tag 'ata-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-core: relax checks in ata_read_log_directory()
Michal reported and bisected an issue after recent adoption
of skb_attempt_defer_free() in UDP.
The issue here is that skb_release_head_state() is called twice per skb,
one time from skb_consume_udp(), then a second time from skb_defer_free_flush()
and napi_consume_skb().
As Sabrina suggested, remove skb_release_head_state() call from
skb_consume_udp().
Add a DEBUG_NET_WARN_ON_ONCE(skb_nfct(skb)) in skb_attempt_defer_free()
Many thanks to Michal, Sabrina, Paolo and Florian for their help.
Fixes: 6471658dc6 ("udp: use skb_attempt_defer_free()")
Reported-and-bisected-by: Michal Kubecek <mkubecek@suse.cz>
Closes: https://lore.kernel.org/netdev/gpjh4lrotyephiqpuldtxxizrsg6job7cvhiqrw72saz2ubs3h@g6fgbvexgl3r/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Michal Kubecek <mkubecek@suse.cz>
Cc: Sabrina Dubroca <sd@queasysnail.net>
Cc: Florian Westphal <fw@strlen.de>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20251015052715.4140493-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The function txgbe_get_phy_link() is more appropriately named
txgbe_get_mac_link(), since it reads the link status from the MAC
register.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20251014061726.36660-4-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
To adapt to new firmware for AML devices, the driver should send the
"SET_LINK_CMD" to the firmware only once when switching PHY interface
mode, and no longer needs to re-trigger PHY configuration based on the
RX signal interrupt (TXGBE_GPIOBIT_3).
In previous firmware versions, the PHY was configured only after receiving
"SET_LINK_CMD", and might remain incomplete if the RX signal was lost.
To handle this case, the driver used TXGBE_GPIOBIT_3 interrupt to resend
the command. This workaround is no longer necessary with the new firmware.
And the unknown link speed is permitted in the mailbox buffer.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20251014061726.36660-3-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Recent firmware updates introduce additional fields in the mailbox message
to provide more information for identifying 40G and 100G QSFP modules.
To accommodate these new fields, expand the mailbox buffer size by 4 bytes.
Without this change, drivers built against the updated firmware cannot
properly identify modules due to mismatched mailbox message lengths.
The old firmware version that used the smaller mailbox buffer has never
been publicly released, so there are no backward-compatibility concerns.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20251014061726.36660-2-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Dimitri Daskalakis says:
====================
Add aarch64 support for FBNIC
We need to support aarch64 with 64K PAGE_SIZE, and I uncovered an issue
during testing.
====================
Link: https://patch.msgid.link/20251013211449.1377054-1-dimitri.daskalakis1@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This enables aarch64 testing, but there's no reason we cannot support other
architectures.
Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013211449.1377054-3-dimitri.daskalakis1@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The HW always works on a 4K page size. When the OS supports larger
pages, we fragment them across multiple BDQ descriptors.
We were not properly incrementing the descriptor, which resulted in us
specifying the last chunks id/addr and then 15 zero descriptors. This
would cause packet loss and driver crashes. This is not a fix since the
Kconfig prevents use outside of x86.
Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013211449.1377054-2-dimitri.daskalakis1@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
dev->chipid is used in lan78xx_init_mac_address before it's initialized:
lan78xx_reset() {
lan78xx_init_mac_address()
lan78xx_read_eeprom()
lan78xx_read_raw_eeprom() <- dev->chipid is used here
dev->chipid = ... <- dev->chipid is initialized correctly here
}
Reorder initialization so that dev->chipid is set before calling
lan78xx_init_mac_address().
Fixes: a0db7d10b7 ("lan78xx: Add to handle mux control per chip id")
Signed-off-by: I Viswanath <viswanathiyyappan@gmail.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Khalid Aziz <khalid@kernel.org>
Link: https://patch.msgid.link/20251013181648.35153-1-viswanathiyyappan@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'linux-can-fixes-for-6.18-20251014' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2025-10-14
The first 2 paches are by Celeste Liu and target the gS_usb driver.
The first patch remove the limitation to 3 CAN interface per USB
device. The second patch adds the missing population of
net_device->dev_port.
The next 4 patches are by me and fix the m_can driver. They add a
missing pm_runtime_disable(), fix the CAN state transition back to
Error Active and fix the state after ifup and suspend/resume.
Another patch by me targets the m_can driver, too and replaces Dong
Aisheng's old email address.
The next 2 patches are by Vincent Mailhol and update the CAN
networking Documentation.
Tetsuo Handa contributes the last patch that add missing cleanup calls
in the NETDEV_UNREGISTER notification handler.
* tag 'linux-can-fixes-for-6.18-20251014' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: j1939: add missing calls in NETDEV_UNREGISTER notification handler
can: add Transmitter Delay Compensation (TDC) documentation
can: remove false statement about 1:1 mapping between DLC and length
can: m_can: replace Dong Aisheng's old email address
can: m_can: fix CAN state in system PM
can: m_can: m_can_chip_config(): bring up interface in correct state
can: m_can: m_can_handle_state_errors(): fix CAN state transition to Error Active
can: m_can: m_can_plat_remove(): add missing pm_runtime_disable()
can: gs_usb: gs_make_candev(): populate net_device->dev_port
can: gs_usb: increase max interface to U8_MAX
====================
Link: https://patch.msgid.link/20251014122140.990472-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Introduce airoha_npu_soc_data structure in order to generalize per-SoC
NPU firmware info. Introduce airoha_npu_load_firmware utility routine.
This is a preliminary patch in order to introduce AN7583 NPU support.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013-airoha-npu-7583-v3-2-00f748b5a0c7@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Kory Maincent says:
====================
Preserve PSE PD692x0 configuration across reboots
Previously, the driver would always reconfigure the PSE hardware on
probe, causing a port matrix reflash that resulted in temporary power
loss to all connected devices. This change maintains power continuity
by preserving existing configuration when the PSE has been previously
initialized.
====================
Link: https://patch.msgid.link/20251013-feature_pd692x0_reboot_keep_conf-v2-0-68ab082a93dd@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Detect when PSE hardware is already configured (user byte == 42) and
skip hardware initialization to prevent power interruption to connected
devices during system reboots.
Previously, the driver would always reconfigure the PSE hardware on
probe, causing a port matrix reflash that resulted in temporary power
loss to all connected devices. This change maintains power continuity
by preserving existing configuration when the PSE has been previously
initialized.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013-feature_pd692x0_reboot_keep_conf-v2-3-68ab082a93dd@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Cache the port matrix configuration in driver private data to enable
PSE controller reconfiguration. This refactoring separates device tree
parsing from hardware configuration application, allowing settings to be
reapplied without reparsing the device tree.
This refactoring is a prerequisite for preserving PSE configuration
across reboots to prevent power disruption to connected devices.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013-feature_pd692x0_reboot_keep_conf-v2-2-68ab082a93dd@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Replace __free(kfree) with explicit kfree() calls to follow the net
subsystem policy of avoiding automatic cleanup macros as described in
the documentation.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013-feature_pd692x0_reboot_keep_conf-v2-1-68ab082a93dd@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If available, interrogate the PHY to find out whether we can use it for
Wake-on-LAN. This can be a more power efficient way of implementing that
feature, especially when the MAC is powered off in low power states.
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20251013172306.2250223-1-florian.fainelli@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Bringing a linked netdevsim device down and then up causes communication
failure because both interfaces lack carrier. Basically a ifdown/ifup on
the interface make the link broken.
Commit 3762ec05a9 ("netdevsim: add NAPI support") added supported
for NAPI, calling netif_carrier_off() in nsim_stop(). This patch
re-enables the carrier symmetrically on nsim_open(), in case the device
is linked and the peer is up.
Signed-off-by: Breno Leitao <leitao@debian.org>
Fixes: 3762ec05a9 ("netdevsim: add NAPI support")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20251014-netdevsim_fix-v2-1-53b40590dae1@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Sabrina Dubroca says:
====================
tls: misc bugfixes
Jann Horn reported multiple bugs in kTLS. This series addresses them,
and adds some corresponding selftests for those that are reproducible
(and without failure injection).
====================
Link: https://patch.msgid.link/cover.1760432043.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We don't have a test triggering a partial splice caused by a full
skmsg. Add one, based on a program by Jann Horn.
Use MAX_FRAGS=48 to make sure the skmsg will be full for any allowed
value of CONFIG_MAX_SKB_FRAGS (17..45).
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/1d129a15f526ea3602f3a2b368aa0b6f7e0d35d5.1760432043.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We don't have a test to check that MSG_MORE won't let us merge records
of different types across sendmsg calls.
Add new tests that check:
- MSG_MORE is only allowed for DATA records
- a pending DATA record gets closed and pushed before a non-DATA
record is processed
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/b34feeadefe8a997f068d5ed5617afd0072df3c0.1760432043.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
With async crypto, we rely on tx_work to actually transmit records
once encryption completes. But while send() is running, both the
tx_lock and socket lock are held, so tx_work_handler cannot process
the queue of encrypted records, and simply reschedules itself. During
a large send(), this could last a long time, and use a lot of memory.
Transmit any pending encrypted records before restarting the main
loop of tls_sw_sendmsg_locked.
Fixes: a42055e8d2 ("net/tls: Add support for async encryption of records for performance")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/8396631478f70454b44afb98352237d33f48d34d.1760432043.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Async decryption calls tls_strp_msg_hold to create a clone of the
input skb to hold references to the memory it uses. If we fail to
allocate that clone, proceeding with async decryption can lead to
various issues (UAF on the skb, writing into userspace memory after
the recv() call has returned).
In this case, wait for all pending decryption requests.
Fixes: 84c61fe1a7 ("tls: rx: do not use the standard strparser")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/b9fe61dcc07dab15da9b35cf4c7d86382a98caf2.1760432043.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When userspace wants to send a non-DATA record (via the
TLS_SET_RECORD_TYPE cmsg), we need to send any pending data from a
previous MSG_MORE send() as a separate DATA record. If that DATA record
is encrypted asynchronously, tls_handle_open_record will return
-EINPROGRESS. This is currently treated as an error by
tls_process_cmsg, and it will skip setting record_type to the correct
value, but the caller (tls_sw_sendmsg_locked) handles that return
value correctly and proceeds with sending the new message with an
incorrect record_type (DATA instead of whatever was requested in the
cmsg).
Always set record_type before handling the open record. If
tls_handle_open_record returns an error, record_type will be
ignored. If it succeeds, whether with synchronous crypto (returning 0)
or asynchronous (returning -EINPROGRESS), the caller will proceed
correctly.
Fixes: a42055e8d2 ("net/tls: Add support for async encryption of records for performance")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/0457252e578a10a94e40c72ba6288b3a64f31662.1760432043.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If we hit an error during the main loop of tls_sw_sendmsg_locked (eg
failed allocation), we jump to send_end and immediately
return. Previous iterations may have queued async encryption requests
that are still pending. We should wait for those before returning, as
we could otherwise be reading from memory that userspace believes
we're not using anymore, which would be a sort of use-after-free.
This is similar to what tls_sw_recvmsg already does: failures during
the main loop jump to the "wait for async" code, not straight to the
unlock/return.
Fixes: a42055e8d2 ("net/tls: Add support for async encryption of records for performance")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/c793efe9673b87f808d84fdefc0f732217030c52.1760432043.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
During tls_sw_sendmsg_locked, we pre-allocate the encrypted message
for the size we're expecting to send during the current iteration, but
we may end up sending less, for example when splicing: if we're
getting the data from small fragments of memory, we may fill up all
the slots in the skmsg with less data than expected.
In this case, we need to trim the encrypted message to only the length
we actually need, to avoid pushing uninitialized bytes down the
underlying TCP socket.
Fixes: fe1e81d4f7 ("tls/sw: Support MSG_SPLICE_PAGES")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/66a0ae99c9efc15f88e9e56c1f58f902f442ce86.1760432043.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
sk->sk_refcnt has been converted to refcount_t in 2017.
__sock_put(sk) being refcount_dec(&sk->sk_refcnt), it will complain
loudly if the current refcnt is 1 (or less) in a non racy way.
We can remove four WARN_ON() in favor of the generic refcount_dec()
check.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Xuanqiang Luo<luoxuanqiang@kylinos.cn>
Link: https://patch.msgid.link/20251014140605.2982703-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Some execution paths that jump to the fiber_setup_done label
could leave the remote_adv and local_adv variables uninitialized
and then use it.
Initialize this variables at the point of definition to avoid this.
Fixes: 85730a631f ("tg3: Add SGMII phy support for 5719/5718 serdes")
Co-developed-by: Alexandr Sapozhnikov <alsp705@gmail.com>
Signed-off-by: Alexandr Sapozhnikov <alsp705@gmail.com>
Signed-off-by: Alexey Simakov <bigalex934@gmail.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20251014164736.5890-1-bigalex934@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
