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In airoha_qdma_init_qos_stats(), the Tx-fwd counter configuration
register uses the same index (i << 1) as the Tx-cpu counter, which
overwrites the Tx-cpu configuration. The Tx-fwd counter value register
correctly uses (i << 1) + 1, so the configuration register should use
the same index.
Fix the REG_CNTR_CFG index from (i << 1) to ((i << 1) + 1) so that
the Tx-fwd counter is properly configured instead of clobbering the
Tx-cpu counter config.
Fixes: 20bf7d07c956 ("net: airoha: Add sched ETS offload support")
Signed-off-by: Wayen.Yan <win847@gmail.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/6a2b40e7.4dd82583.3a5c46.e566@mx.google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In the context of a GDM port that can have multiple net_devices attached
(GDM3 and GDM4), the HW counters (MIBs) are global for the GDM port.
This cause duplicated stats reported to the kernel for the related
net_device.
The SoC supports a split MIB feature where each counter is tracked based
on the relevant HW channel (NBQ) to account for this scenario and
provide a way to select the related counter on accessing the MIB
registers.
Enable this feature for GDM3 and GDM4 and configure the relevant HW
channel before updating the HW stats to report correct HW counter to the
kernel for the related interface.
Move the stats struct from port to dev since HW counter are now specific
to the network device instead of the GDM port. Refactor
airoha_update_hw_stats() to take airoha_eth and airoha_gdm_port
parameters since the function operates on the entire port.
Co-developed-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260611-airoha-eth-multi-serdes-stats-v1-1-42442ae42064@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Several NPC mailbox command IDs in the 0x601x range were assigned out of
order. Renumber and reorder the M() definitions so each opcode matches
the stable contract expected by userspace tools and applications.
Fixes: 4e527f1e5c15 ("octeontx2-af: npc: cn20k: Add new mailboxes for CN20K silicon")
Cc: Suman Ghosh <sumang@marvell.com>
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260611083330.1652181-1-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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To match how device-id array terminators look like for other device
types drop `.id = ""` from it and let the compiler care for zeroing the
entry.
There are no changes in the compiled drivers, only the source looks
nicer.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/a0cd057e6a24b9d355b5e4bdfcdb812cdd1e4652.1781082923.git.u.kleine-koenig@baylibre.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Under heavy network traffic, we observed sporadic TX queue timeouts on the
Raspberry Pi 4. The timeouts can be reproduced by stress testing the TX
path with multiple concurrent iperf UDP streams:
iperf3 -c <ip> -u -b0 -P16 -t60
NETDEV WATCHDOG: CPU: 0: transmit queue 0 timed out 2044 ms
NETDEV WATCHDOG: CPU: 3: transmit queue 0 timed out 2004 ms
Investigation showed that the timeouts are caused by the priority-based
arbiter. Under heavy load the highest priority queue starves the lower
priority ones, causing timeouts. The TX strict priority arbiter is not
suitable for the default use case where all the traffic gets spread
across all the TX queues.
Therefore, to fix this, switch the TX DMA arbiter to Weighted Round-Robin,
which services all queues, so they do not stall. The weights were chosen
to follow the existing priority scheme: q0 gets the smallest weight, while
q1-4 get the bulk of the TX bandwidth.
Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file")
Signed-off-by: Ovidiu Panait <ovidiu.panait.rb@renesas.com>
Link: https://patch.msgid.link/20260610085238.56300-1-ovidiu.panait.rb@renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Build on the previously introduced TXC DPLL framework and implement
full TX reference clock control and hardware-backed synchronization
status reporting for E825 devices.
E825 firmware may accept or override TX reference clock requests based
on device-wide routing constraints and link conditions. Because the
final selection becomes visible only after a link-up event, the driver
splits the observation into two complementary signals:
- TXCLK pin state reflects the requested TX reference clock
(pf->ptp.port.tx_clk_req). After a link-up, the value is reconciled
against the SERDES reference selector by
ice_txclk_update_and_notify(); if firmware or auto-negotiation
selected a different clock, tx_clk_req is overwritten so that pin
state converges to the actual hardware selection.
- TXC DPLL lock status reflects hardware synchronization:
* LOCKED when an external TX reference is in use
* UNLOCKED when falling back to ENET/TXCO, or when a requested
external reference has not (yet) been accepted by hardware.
Userspace observing only pin state therefore sees user intent, while
lock status is the authoritative indicator of whether the requested
clock is actually selected and synchronizing. This matches the DPLL
subsystem model where pin state describes topology and device lock
status describes signal quality.
TX reference selection topology:
- External references (SYNCE, EREF0) are represented as TXCLK pins
- The internal ENET/TXCO clock has no pin representation; when
selected, all TXCLK pins are reported DISCONNECTED
With this change, TX reference clocks on E825 devices can be reliably
selected, observed via standard DPLL interfaces, and monitored for
effective synchronization through TXC DPLL lock status.
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Link: https://patch.msgid.link/20260607183045.1213735-14-grzegorz.nitka@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Extend the Restart Auto-Negotiation (AN) AdminQ command with a new
parameter allowing software to specify the Tx reference clock index to
be used during link restart.
This patch:
- adds REFCLK field definitions to ice_aqc_restart_an
- updates ice_aq_set_link_restart_an() to take a new refclk parameter
and properly encode it into the command
- keeps legacy behavior by passing REFCLK_NOCHANGE where appropriate
This prepares the driver for configurations requiring dynamic selection
of the Tx reference clock as part of the AN flow.
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Link: https://patch.msgid.link/20260607183045.1213735-13-grzegorz.nitka@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add full CPI (Converged PHY Interface) command handling required for
E825C devices. The CPI interface allows the driver to interact with
PHY-side control logic through the LM/PHY command registers, including
enabling/disabling/selection of PHY reference clock.
This patch introduces:
- a new CPI subsystem (ice_cpi.c / ice_cpi.h) implementing the CPI
request/acknowledge state machine, including REQ/ACK protocol,
command execution, and response handling
- helper functions for reading/writing PHY registers over Sideband
Queue
- CPI command execution API (ice_cpi_exec) and a helper for enabling or
disabling Tx reference clocks (CPI 0xF1 opcode 'Config PHY clocking')
- assurance of CPI transaction serialization into the CPI core.
CPI REQ/ACK is a multi-step handshake and must be executed
atomically per PHY. Centralize the lock in ice_cpi_exec() and
use adapter-scoped per-PHY mutexes, which match the hardware sharing
model across PFs.
- addition of the non-posted write opcode (wr_np) to SBQ
- Makefile integration to build CPI support together with the PTP stack
This provides the infrastructure necessary to support PHY-side
configuration flows on E825C and is required for advanced link control
and Tx reference clock management.
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Link: https://patch.msgid.link/20260607183045.1213735-12-grzegorz.nitka@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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E825 devices provide a dedicated TX clock (TXC) domain which may be
driven by multiple reference clock sources, including external board
references and port-derived SyncE. To support future TX clock control
and observability through the Linux DPLL subsystem, introduce a
separate TXC DPLL device (of DPLL_TYPE_GENERIC) and a framework for
representing TX reference clock inputs.
This change adds a new internal DPLL pin type (TXCLK) and registers
TX reference clock pins for E825-based devices:
- EXT_EREF0: a board-level external electrical reference
- SYNCE: a port-derived SyncE reference described via firmware nodes
The TXC DPLL device is created and managed alongside the existing
PPS and EEC DPLL instances. TXCLK pins are registered directly or
deferred via a notifier when backed by fwnode-described pins.
A per-pin attribute encodes the TX reference source associated with
each TXCLK pin.
At this stage, TXCLK pin state callbacks and TXC DPLL lock status
reporting are implemented as placeholders. Pin state getters always
return DISCONNECTED, and the TXC DPLL is initialized in the UNLOCKED
state. No hardware configuration or TX reference switching is
performed yet.
This patch establishes the structural groundwork required for
hardware-backed TX reference selection, verification, and
synchronization status reporting, which will be implemented in
subsequent patches.
Also signal dpll_init from the fwnode pin init error path so any
notifier worker already blocked on it can drain, avoiding a
flush_workqueue() deadlock during teardown.
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Link: https://patch.msgid.link/20260607183045.1213735-11-grzegorz.nitka@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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t7xx_port_ctrl_tx() clones each skb fragment before passing it to the
port transmit path. The clone is used immediately to set cloned->len, so
an skb_clone() failure results in a NULL pointer dereference.
Check the clone before using it. If previous fragments were already
queued, preserve the driver's existing partial-write behavior by
returning the number of bytes submitted so far.
Fixes: 36bd28c1cb0d ("wwan: core: Support slicing in port TX flow of WWAN subsystem")
Signed-off-by: Ruoyu Wang <ruoyuw560@gmail.com>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Link: https://patch.msgid.link/20260612035613.1192486-1-ruoyuw560@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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WED_MON_AMSDU_ENG_CNT point to different entry by 'base+n*offset' mode,
correct the wed amsdu entry number in wed_amsdu_show().
Fixes: 3f3de094e8342 ("net: ethernet: mtk_wed: debugfs: add WED 3.0 debugfs entries")
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
Link: https://patch.msgid.link/20260612064501.203058-1-guanwentao@uniontech.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The actual 'offload' is phony, all commands are ignored: this is only
useful to test control plane code.
Tag the existing callback to permit error injection to test rollback/abort
code in nf_tables. This is also for fuzzers - the fault injection
framework allows probabilistic error insertion.
Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://patch.msgid.link/20260612092209.11966-2-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In airoha_ppe_flush_sram_entries(), the outer "err" variable was never
updated when the inner loop variable shadowed it, causing the function
to always return 0 even when airoha_ppe_foe_commit_sram_entry() fails.
Drop the outer "err" variable and return directly on error, propagating
the error code from airoha_ppe_foe_commit_sram_entry() correctly.
Fixes: 620d7b91aadb ("net: airoha: ppe: Flush PPE SRAM table during PPE setup")
Link: https://lore.kernel.org/netdev/6a2b40e4.4dd82583.3a5c46.e52f@mx.google.com/
Signed-off-by: Wayen.Yan <win847@gmail.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/6a2bd37a.4034e349.1b41bb.1caf@mx.google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-06-09 (idpf, ixgbe, igc)
Przemyslaw adds needed padding to idpf PTP structures to match firmware
expectations.
Larysa bypasses XPS configuration on XDP queues for ixgbe.
Khai Wen corrects offset into packet buffer when handling for frame
preemption on igc.
* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
igc: skip RX timestamp header for frame preemption verification
ixgbe: do not configure xps for XDP queues
idpf: add padding to PTP virtchnl structures
====================
Link: https://patch.msgid.link/
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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KASAN prints below splat. This is caused by allocating counter for
reserved mcam entry for cpt 2nd pass entry. But mcam->entry2cntr_map
is not allocated for reserved entries.
BUG: KASAN: slab-out-of-bounds in npc_map_mcam_entry_and_cntr+0xb0/0x1a0
Write of size 2 at addr ffff0001033e7ffe by task kworker/0:1/14
CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 6.1.67 #1
Hardware name: Marvell CN106XX board (DT)
Workqueue: events work_for_cpu_fn
Call trace:
dump_backtrace.part.0+0xe4/0xf0
show_stack+0x18/0x30
dump_stack_lvl+0x88/0xb4
print_report+0x154/0x458
kasan_report+0xb8/0x194
__asan_store2+0x7c/0xa0
npc_map_mcam_entry_and_cntr+0xb0/0x1a0
rvu_mbox_handler_npc_mcam_write_entry+0x268/0x280
npc_install_flow+0x840/0xfe0
rvu_npc_install_cpt_pass2_entry+0x138/0x190
rvu_nix_init+0x148c/0x2880
rvu_probe+0x1800/0x30b0
local_pci_probe+0x78/0xe0
work_for_cpu_fn+0x30/0x50
process_one_work+0x4cc/0x97c
worker_thread+0x360/0x630
kthread+0x1a0/0x1b0
ret_from_fork+0x10/0x20
Fixes: 55307fcb9258 ("octeontx2-af: Add mbox messages to install and delete MCAM rules")
Cc: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260610022344.969774-1-rkannoth@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The max_macs devlink param is checked against the FW max value only at
param register time (driver load) and inside the validate callback
(devlink param set). The stored DRIVERINIT value persists across FW
resets and devlink reloads without any further checks against the max.
If the FW link type changes from Ethernet to IB and a FW reset happens,
the MAX cap for log_max_current_uc_list will become zero, but the
previously stored max_macs value remains and is unconditionally
programmed into the HCA caps in handle_hca_cap(). FW will then return a
syndrome during SET_HCA_CAP:
mlx5_cmd_out_err:839:(pid 3831): SET_HCA_CAP(0x109) op_mod(0x0) failed,
status bad parameter(0x3), syndrome (0x537801), err(-22)
set_hca_cap:907:(pid 3831): handle_hca_cap failed
This results in a failure to register the RDMA device.
This patch skips programming log_max_current_uc_list when the MAX
capability is 0 (in case of IB).
Fixes: 8680a60fc1fc ("net/mlx5: Let user configure max_macs generic param")
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Yael Chemla <ychemla@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://patch.msgid.link/20260611135230.534513-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The port_teardown() operation is optional. Yet, it is implemented by all
the KSZ switches through a common function that doesn't do anything for
the switches that aren't part of the ksz9477 family
Remove the implementation from the switches that don't need it.
Implement instead a ksz9477-specific port_teardown.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-10-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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All the switches use a common mdio_register() function that uses two
ksz_dev_ops callbacks (.mdio_bus_preinit() and .create_phy_addr_map())
to handle the lan937x specific case. These two callbacks are used only
at this place in the code.
Implement a new lan937x-specific MDIO registration functions that uses
these two lan937x-specific functions. The lan937x bindings don't
have any 'interrupts' property so this lan937x_mdio_register() doesn't
call ksz_irq_phy_setup().
Expose the common ksz_*_mdio_{read/write} functions so they can be used
in lan937x.c
Remove the callbacks from ksz_dev_ops.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-9-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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All switches implement the optional .port_hsr_join operation while only
the KSZ9477 truly supports it.
Remove the common port_hsr_join implementation.
Replace it with a specific implementation for the KSZ9477 case.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-8-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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All the KSZ switches use common {get/set}_wol operations while only the
ksz9477 and the ksz87xx families really support it. These operations are
optional so there is no point implementing them to return -EOPNOTSUPP.
Remove the {get/set}_wol callbacks from the switch operations for the
ksz88xx, the ksz8463 and the lan937x families.
Remove the family check from the common {get/set}_wol implementation.
Note that is_ksz9477() is only true for the KSZ9477 so this change will
also add WoL support for the other switches using the
ksz9477_switch_ops. I checked their datasheet, they implement the same
PME_WOL registers, at the same addresses, so this should go fine.
Modify the ksz_wol_pre_shutdown() initial check to ensure consistency in
the WoL handling for these non-KSZ9477 switches using ksz9477_switch_ops.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-7-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The .support_eee() operation is optional. Yet, it is implemented by the
KSZ switches through a common functon that reports false for every chip
except for KSZ8563, KSZ9563 and KSZ9893 from the KSZ9477 family.
Remove the implementation from the switches that don't support EEE.
Also remove .set_mac_eee() for them as .set_mac_eee() is gated by the
`support_eee` presence in the core.
Implement instead a ksz9477-specific support_eee for these three supported
switches.
Note that comment /* KSZ879x/KSZ877x/KSZ876x Errata DS80000687C Module 2 */
is completely removed because it concerns the KSZ87xx family that doesn't
support at all EEE.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-6-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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setup_rgmii_delay() operation is only used once during the common phylink
MAC configuration. Only the lan937x switch implements this
setup_rgmii_delay().
Remove the setup_rgmii_delay operation from ksz_dev_ops.
Implement a lan937x-specific phylink MAC configuration that does this
RGMII delay setup.
Export ksz_set_xmii since it's needed by the lan937x implementation.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-5-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The common .mac_config() implementation checks some conditions before
doing any register access. As this common implementation is about to be
split in the upcoming patch, these checks would lead to code
duplication.
Wrap all the checks in a need_config() function that returns true when
the driver really need to access the switch registers to configure the
MAC.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-4-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The common ksz_get_phy_flags() is used by all the switches to implement
the optional .get_phy_flags DSA operation. It always returns 0 except
for KSZ88X3 switches where an errata has to be handled.
Make ksz_get_phy_flags() ksz88xx-specific.
Remove the get_phy_flags implementation for the switches that don't need
it.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-3-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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KSZ8463 uses the common KSZ8 implementation for its VLAN operations.
This implementation returns -ENOTSUPP for the KSZ8463 case, which is
pointless.
Remove the VLAN operations from the ksz8463_switch_ops so the core can
directly return -ENOTSUPP.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-2-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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All the KSZ switches share a common implementation of the
cls_flower_{add/del} operations. These common implementations return
ksz9477-specific implementations for the KSZ9477 family and -EOPNOTSUPP
for the others. -EOPNOTSUPP is already returned by the DSA core when
the operation isn't implemented.
Remove the common implementations.
Directly link the ksz9477_cls_flower_{add/del}() to the KSZ9477 callback.
Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260608-clean-ksz-3rd-v2-1-6e61b7be23c4@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When process_resume_target() catches a device that was unregistered
while the target was off target_list, it calls do_netpoll_cleanup() to
release the reference but leaves the cached np.dev_name in place. The
other cleanup path, netconsole_process_cleanups_core(), already wipes
dev_name for MAC-bound targets because the name was only a cache of the
device that last carried the MAC and may no longer match.
The pattern is the same in both spots, so fold it into a small helper
netcons_release_dev() and route both call sites through it. This makes
the resume-window cleanup consistent with the notifier-driven one so a
later enable does not let netpoll_setup() pick a stale interface by name
when the user bound the target by MAC.
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Andre Carvalho <asantostc@gmail.com>
Link: https://patch.msgid.link/20260610-netconsole_fix_more-v1-1-a18652c47cef@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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MT7986 requires a different mask for second WO firmware.
Without this, WO would timeout after loading FW.
The correct mask was removed when adding WED for MT7988.
Add it back and add a WED version check to fix it.
This can be reproduced with a MT7986 + MT7916 board.
Fixes: e2f64db13aa1 ("net: ethernet: mtk_wed: introduce WED support for MT7988")
Signed-off-by: Zhi-Jun You <hujy652@gmail.com>
Link: https://patch.msgid.link/20260611150051.586-1-hujy652@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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mana_create_txq() has several error paths (after mana_alloc_queues() or
mana_create_wq_obj() failure) where tx_qp[i].tx_object stays as the
INVALID_MANA_HANDLE sentinel set at allocation. mana_destroy_txq() then
unconditionally calls mana_destroy_wq_obj() with (u64)-1, which firmware
rejects and logs an error.
Mirror the RX-side pattern in mana_destroy_rxq() and skip the destroy
when the handle is still INVALID_MANA_HANDLE.
Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com>
Reviewed-by: Dipayaan Roy <dipayanroy@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://patch.msgid.link/20260608101345.2267320-3-gargaditya@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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mana_gd_create_mana_wq_cq() leaves queue->id as 0 (from kzalloc_obj())
until mana_create_wq_obj() assigns the firmware-returned id. If creation
fails before that, cleanup calls mana_gd_destroy_cq() with id 0, NULLing
gc->cq_table[0] and silently breaking whichever real CQ owns that slot.
Initialize queue->id to INVALID_QUEUE_ID right after allocation, matching
mana_gd_create_eq(). The existing (id >= max_num_cqs) guard then
short-circuits cleanly.
Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com>
Reviewed-by: Dipayaan Roy <dipayanroy@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://patch.msgid.link/20260608101345.2267320-2-gargaditya@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The MDIO driver has been prepared for multiple device support. Add all
required bits for the RTL931x (aka mango) series. This is straightforward
but some things are worth to be mentioned.
- In contrast to RTL930x the I/O register has the input/output fields
swapped. Upper 16 bits are for read/outputs, and the lower 16 bits
are for write/inputs.
- The supported "pages" are 8192 and thus the raw page is 8191
- The devices support up to 56 ports. Thus the MAX_PORTS definition
is increased by this commit.
- There are multiple global SMI controller registers with a different
layout from RTL930x devices. Therefore a separate setup_controller()
callback is added.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://patch.msgid.link/20260610194145.4153668-6-markus.stockhausen@gmx.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The high port count models of the Realtek Otto switches have additional
registers to instrument the MDIO controller. These are:
- High port mask: A bitfield that extends the already existing low port
mask to select ports starting from 32.
- Broadcast: This takes the port number during reads on the RTL931x.
- Extended page: Some additional page info. The SDK does not give much
information about this. Basically some fixed value must be written
into it during access.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://patch.msgid.link/20260610194145.4153668-5-markus.stockhausen@gmx.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The otto_emdio_read_cmd() helper still uses RTL9300 specific properties.
This cannot be made generic as the I/O register has different layouts for
the different SoCs. E.g.
- RTL930x: data in bits 31-16, data out bits 15-0
- RTL931x: data in bits 15-0, data out bits 31-16
Add a mask parameter to the function signature and fill it properly
in the callers. As the masks will always have bits set from constant
defines, there is no need for a consistency check.
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://patch.msgid.link/20260610194145.4153668-4-markus.stockhausen@gmx.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The current Realtek Otto MDIO driver has some define leftovers without
a SoC prefix. When adding new devices there will be an overlap for some
of them. Sort this out as follows:
- PHY_CTRL_CMD/PHY_CTRL_MMD_DEVAD/PHY_CTRL_MMD_REG are common for all
series. Leave them as is but move them into a separate block.
- Add RTL9300 prefix to all other defines and adapt the callers.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://patch.msgid.link/20260610194145.4153668-3-markus.stockhausen@gmx.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The tls_toe feature and its single user (chelsio chtls) have been
unmaintained for multiple years. It also hooks into the core of the
TCP implementation, and bypasses most of the networking stack.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/1f30e73275c07bf879f547589872d0916025a52e.1781165969.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fiona reports broken connectivity for virtio net setup using UDP tunnel
inside the guest and NIC with not UDP tunnel TSO support in the host.
Currently the virtio_net driver exposes csum offload for UDP-tunneled,
TCP non GSO packets. Such packet reach the host as CSUM_PARTIAL ones
with the 'encapsulation' flag cleared, as the virtio specification do
not support this specific kind of offload.
HW NICs with UDP tunnel TSO support - and those drivers directly
accessing skb->csum_start/csum_offset - are still capable of computing
the needed csum correctly, but otherwise the packets reach the wire with
bad csum on both the inner and outer transport header.
Address the issue explicitly disabling csum offload for UDP tunneled,
non GSO packets via the ndo_features_check op.
Fixes: 56a06bd40fab ("virtio_net: enable gso over UDP tunnel support.")
Reported-by: Fiona Ebner <f.ebner@proxmox.com>
Closes: https://bugzilla.proxmox.com/show_bug.cgi?id=7627
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Gabriel Goller <g.goller@proxmox.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Gabriel Goller <g.goller@proxmox.com>
Tested-by: Gabriel Goller <g.goller@proxmox.com>
Link: https://patch.msgid.link/6c3b6c47fb05c100f384630dc48f3975cf37b67a.1781195144.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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A comment in drivers/net/ethernet/sis/sis900.h incorrectly refers to
CONFIG_VLAN_802_1Q instead of CONFIG_VLAN_8021Q. Correct it.
Discovered while searching for CONFIG_* symbols referenced in code but
not defined in any Kconfig file.
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Link: https://patch.msgid.link/20260609175656.20574-1-enelsonmoore@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The xdp.py test test_xdp_native_adjst_head_grow_data crashes when run on
a bnxt machine (and also crashes in NIPA).
It seems that the bug is an underflow in bnxt_rx_multi_page_skb, which
builds the skb head:
napi_build_skb(data_ptr - bp->rx_offset, rxr->rx_page_size);
The problem with this expression is that in page mode, rx_offset is:
bp->rx_offset = NET_IP_ALIGN + XDP_PACKET_HEADROOM;
Which evaluates (at least on x86_64) to 258.
The test test_xdp_native_adjst_head_grow_data tests a case where the
head is adjusted by -256.
When this test runs, data_ptr is shifted to frag_start + 2 (where
frag_start = page_address(page) + offset).
Then, bnxt_rx_multi_page_skb is invoked and the napi_build_skb
expression subtracts 258, landing at an address before frag_start. This
could be either the previous fragment or the previous physical page when
the offset is < 256 (e.g. if the fragment started at offset 0).
When the skb is freed, the page pool fragment reference is dropped on
either the wrong page or the wrong frag of the right page. In either
case, the corrupted reference count can lead to the page being
prematurely recycled while still in use. Once (incorrectly) recycled, it
can be handed out again and on driver teardown this would result in a
double free.
The commit under fixes updated this code to handle the case where the
native page size is >= 64k, but it unintentionally broke the head grow
case.
To fix this, add an offset field to struct bnxt_sw_rx_bd, mirroring the
existing offset field in struct bnxt_sw_rx_agg_bd. Populate it on
allocation and preserve it on reuse.
In bnxt_rx_multi_page_skb, use the newly added offset field to compute
the fragment start and pass that to napi_build_skb. Adjust the layout
with skb_reserve.
There are two cases, the non-adjustment case and the adjustment case.
In both cases, the skb is built at page_address(page) + offset to
account for the case where the native page size >= 64K and skb_reserve
is called with data_ptr - (page_address(page) + offset). That
difference equals bp->rx_offset when data_ptr was not moved, or
bp->rx_offset + xdp_adjust when XDP adjusted the head.
Re-running the failing test with this commit applied causes the test to
run successfully to completion.
The other rx_skb_func implementations don't have this issue.
Fixes: f6974b4c2d8e ("bnxt_en: Fix page pool logic for page size >= 64K")
Signed-off-by: Joe Damato <joe@dama.to>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20260609204458.2237787-2-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Enabling the RX Buffer Unavailable (RBUE) interrupt is counterproductive
and can trigger a MAC interrupt storm under heavy RX pressure. When the
DMA runs out of RX descriptors it fires RBUE continuously until software
refills the ring.
However, RBUE is redundant: the normal RX completion interrupt (RIE)
already triggers NAPI, which processes completed descriptors and refills
the ring, causing the DMA to resume. The RBUE handler itself only sets
handle_rx - the same outcome as RIE.
On Agilex5 under heavy RX pressure, the MAC interrupt (which includes
RBUE) was observed firing 1,821,811,555 times against only 2,618,627
actual RX completions - a ~695x ratio - confirming the severity of the
storm.
RBUE does not provide OOM recovery. If page_pool is exhausted,
stmmac_rx_refill() cannot advance the DMA tail pointer, the DMA stays
suspended, and RBUE fires again on the next NAPI completion - a storm
with no forward progress. This patch trades that storm for a clean
stall with the same RX outcome. Proper OOM recovery is a pre-existing
gap outside the scope of this fix.
Note: as a consequence of disabling RBUE, the rx_buf_unav_irq ethtool
counter will always read 0 on XGMAC2 devices. This behaviour is already
inconsistent across DWMAC core versions.
Remove RBUE from XGMAC_DMA_INT_DEFAULT_EN and XGMAC_DMA_INT_DEFAULT_RX
to prevent the interrupt storm while keeping normal RX handling intact.
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260609121703.9736-1-muhammad.nazim.amirul.nazle.asmade@altera.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next
Mika writes:
thunderbolt: Changes for v7.2 merge window
This includes following USB4/Thunderbolt changes for the v7.2 merge
window:
- Make the driver more compliant with the connection manager guide.
- Improvements over Thunderbolt XDomain service handling.
- USB4STREAM driver.
- Split out PCIe bits into pci.c to allow the driver to work on
non-PCIe hosts as well.
- Various fixes and improvements.
All these have been in linux-next with no reported issues.
* tag 'thunderbolt-for-v7.2-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (41 commits)
thunderbolt: debugfs: Fix sideband write size check
thunderbolt: debugfs: Fix margining error counter buffer leak
thunderbolt: test: Release third DP tunnel
thunderbolt: Prevent XDomain delayed work use-after-free on disconnect
thunderbolt: test: Add KUnit tests for property parser bounds checks
thunderbolt: Add some more descriptive probe error messages
thunderbolt: Require nhi->ops be valid
thunderbolt: Separate out common NHI bits
thunderbolt: Move pci_device out of tb_nhi
thunderbolt: Increase Notification Timeout to 255 ms for USB4 routers
thunderbolt: Increase timeout for Configuration Ready bit
thunderbolt: Verify Router Ready bit is set after router enumeration
thunderbolt: Verify PCIe adapter in detect state before tunnel setup
thunderbolt: Activate path hops from source to destination
thunderbolt: Fix lane bonding log when bonding not possible
thunderbolt: Don't access path config space on Lane 1 adapters in tb_switch_reset_host()
thunderbolt: Improve multi-display DisplayPort tunnel allocation
docs: admin-guide: thunderbolt: Add instructions how to use USB4STREAM
thunderbolt: Add support for USB4STREAM
thunderbolt: Add support for ConfigFS
...
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airoha_register_gdm_devices() iterates eth->ports[] in order, so GDM2's
netdev is always registered before GDM3/GDM4. This means the explicit
check for eth->ports[1] && eth->ports[1]->devs[0] is a redundant
special-case of what airoha_get_wan_gdm_dev() already covers, since
GDM2 is always marked as WAN during its own ndo_init.
Remove the redundant check and rely solely on airoha_get_wan_gdm_dev()
which handles both the GDM2-present and GDM2-absent cases.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://patch.msgid.link/20260610-airoha-eth-simplify-dev-init-v2-1-8f244e69b0d4@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When mlxsw_sp_vrs_lpm_tree_replace() fails after replacing some VRs,
the error rollback loop does not correctly revert the preceding
replacements. The loop decrements the index but fails to update the
vr pointer, which still points to the VR that caused the failure. As
a result, the condition and the rollback call always operate on the
same VR, potentially calling mlxsw_sp_vr_lpm_tree_replace() multiple
times on it while never rolling back the earlier VRs. Those VRs
continue to hold a reference to new_tree acquired via
mlxsw_sp_lpm_tree_hold(), leaking the reference count of new_tree.
Fix by reinitializing vr inside the error loop with the updated index:
vr = &mlxsw_sp->router->vrs[i];
so that the loop correctly iterates over all VRs that were actually
replaced.
Cc: stable@vger.kernel.org
Fixes: fc922bb0dd94 ("mlxsw: spectrum_router: Use one LPM tree for all virtual routers")
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260609084730.215732-1-vulab@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When mlxsw_sp_port_lag_index_get() fails, mlxsw_sp_port_lag_join()
returns an error without releasing the lag reference obtained by
the earlier mlxsw_sp_lag_get(). All other error paths in the
function jump to the cleanup label that ends with
mlxsw_sp_lag_put(), so this is a single missed release.
Fix the leak by replacing the bare 'return err' with a goto to the
existing error cleanup label, which will drop the reference safely.
Cc: stable@vger.kernel.org
Fixes: 0d65fc13042f ("mlxsw: spectrum: Implement LAG port join/leave")
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260609083709.209743-1-vulab@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for the KSZ87xx low-loss cable PHY tunables in the Micrel
PHY driver by implementing get_tunable and set_tunable callbacks.
These callbacks expose vendor-specific PHY tunables used to control the
KSZ87xx embedded PHY receiver behavior when operating with short or
low-loss Ethernet cables. The tunables provide:
- a boolean short-cable preset applying known good settings;
- an integer LPF bandwidth control;
- an integer DSP EQ initial value control.
The Micrel PHY driver forwards these tunables via standard phy_read() /
phy_write() operations, which are virtualized by the KSZ8 DSA driver and
translated into the appropriate indirect switch register accesses.
Reviewed-by: Marek Vasut <marex@nabladev.com>
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Signed-off-by: Fidelio Lawson <fidelio.lawson@exotec.com>
Link: https://patch.msgid.link/20260609-ksz87xx_errata_low_loss_connections-v10-3-9ba4418cf3db@exotec.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement the KSZ87xx short cable workaround.
This patch implements the KSZ87xx short cable erratum
described in Microchip document DS80000687C for KSZ87xx switches
and the following support article:
Link: https://support.microchip.com/s/article/Solution-for-Using-CAT-5E-or-CAT-6-Short-Cable-with-a-Link-Issue-for-the-KSZ8795-Family
The issue affects short or low-loss cable links (e.g. CAT5e/CAT6),
where the PHY receiver equalizer may amplify high-amplitude signals
excessively, resulting in internal distortion and link establishment
failures.
KSZ87xx devices require a workaround for the Module 3 low-loss cable
condition, controlled through the switch TABLE_LINK_MD_V indirect
registers.
This change models the erratum handling as vendor-specific Clause 22 PHY
registers, virtualized by the KSZ8 DSA driver and accessed via
ksz8_r_phy() / ksz8_w_phy(). The following controls are provided:
- A boolean “short-cable” preset, which applies a documented and
conservative configuration (LPF 62 MHz bandwidth and DSP EQ initial
value 0), and is the recommended interface for typical use cases.
- Separate LPF bandwidth and DSP EQ initial value controls intended for
advanced or experimental tuning. These are orthogonal and independent,
and override the corresponding settings without requiring any specific
ordering.
The preset and tunables act as simple setters with no implicit state
machine or invalid combinations, keeping the API predictable and aligned
with the KISS principle.
The erratum affects the shared PHY analog front-end and therefore applies
globally to the switch.
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Reviewed-by: Marek Vasut <marex@nabladev.com>
Signed-off-by: Fidelio Lawson <fidelio.lawson@exotec.com>
Link: https://patch.msgid.link/20260609-ksz87xx_errata_low_loss_connections-v10-1-9ba4418cf3db@exotec.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Replace the per-packet __netdev_alloc_skb() + dma_map_single() in the
RX path with page_pool. SKBs are built from pool pages via
napi_build_skb() with skb_mark_for_recycle() so the network stack
returns pages to the pool, and DMA mapping happens once per page
instead of once per packet.
Reject HW-reported lengths smaller than the RSB so a runt cannot
underflow the SKB build path.
Drop the now-unused priv->rx_buf_len field and the rx_dma_failed soft
MIB counter (nothing increments it after the conversion). This
removes the "rx_dma_failed" entry from ethtool -S, which is a
user-visible change for monitoring tools that key on stat names.
Signed-off-by: Nicolai Buchwitz <nb@tipi-net.de>
Reviewed-by: Justin Chen <justin.chen@broadcom.com>
Tested-by: Justin Chen <justin.chen@broadcom.com>
Link: https://patch.msgid.link/20260610114835.2225423-1-nb@tipi-net.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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airoha_enable_gdm2_loopback()
Move the get_sport() callback invocation at the beginning of
airoha_enable_gdm2_loopback() routine in order to avoid leaving the
hardware in a partially configured state if get_sport() fails.
Previously, get_sport() was called after GDM2 forwarding, loopback,
channel, length, VIP and IFC registers had already been programmed.
A failure at that point would return an error leaving GDM2 with
loopback enabled but WAN port, PPE CPU port and flow control mappings
not configured.
Performing the get_sport() lookup before any register write guarantees
the routine either completes the full configuration sequence or exits
with no side effects on the hardware.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260608-airoha_enable_gdm2_loopback-minor-change-v1-1-1787a0f42b31@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Acquire and enable the RX and TX clocks for the IPQ5018 PHY.
These clocks are required for the PHY's datapath to function correctly.
Signed-off-by: George Moussalem <george.moussalem@outlook.com>
Link: https://patch.msgid.link/20260608-ipq5018-gephy-clocks-v4-4-fb2ccd56894b@outlook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The CONFIG_GILBARCONAP option has never been defined by the kernel, but
is referred to by drivers/net/ethernet/freescale/fec_main.c. Remove this
reference to eliminate dead code.
Discovered while searching for CONFIG_* symbols referenced in code but
not defined in any Kconfig file.
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260609045200.32606-1-enelsonmoore@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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PFCP uses dev_get_tstats64() as its ndo_get_stats64 callback, but
pfcp_link_setup() does not request NETDEV_PCPU_STAT_TSTATS. The net
core therefore leaves dev->tstats NULL for PFCP devices.
Creating a PFCP rtnetlink device can immediately ask the new netdev for
stats while building the RTM_NEWLINK notification. That reaches
dev_get_tstats64() and dereferences the NULL dev->tstats pointer.
Set pcpu_stat_type to NETDEV_PCPU_STAT_TSTATS during PFCP link setup so
the net core allocates the storage expected by dev_get_tstats64().
Fixes: 76c8764ef36a ("pfcp: add PFCP module")
Signed-off-by: Samuel Moelius <sam.moelius@trailofbits.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://patch.msgid.link/20260609232244.1602027.c569f6c530f6.pfcp-missing-tstats-link-create-oops@trailofbits.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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