Even though pause frame statistics are not exported through the same
ethtool command, there is no point in adding another helper just for
them. Extent the ethtool_std_stats_get() function so that we are able to
interrogate using the same helper all the standard statistics.
And since we are touching the function, convert the initial ethtool call
as well to the jq --arg form in order to be easier to read.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20260330152933.2195885-2-ioana.ciornei@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:
commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")
The refactoring is going to alter the default behavior of
alloc_workqueue() to be unbound by default.
With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU. For more details see the Link tag below.
In order to keep alloc_workqueue() behavior identical, explicitly request
WQ_PERCPU.
Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://patch.msgid.link/20260330095405.116990-1-marco.crivellari@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The Kconfig in the parent directory already has the first 'if NET_VENDOR_MICROCHIP'
gating the inclusion of this Kconfig, meaning that the second
'if NET_VENDOR_MICROCHIP' condition is effectively dead code.
I propose removing the second 'if NET_VENDOR_MICROCHIP' in
drivers/net/ethernet/microchip/fdma/Kconfig
This dead code was found by kconfirm, a static analysis tool for Kconfig.
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Link: https://patch.msgid.link/20260329185348.526893-1-julianbraha@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'linux-can-next-for-7.1-20260401' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2026-04-01
The first patch is by Ethan Nelson-Moore and removes a useless copy of
PCI_DEVICE_DATA from the ctucanfd driver.
Geert Uytterhoeven's patch for the rcar_can converts the driver to use
the FIELD_MODIFY macro.
Viken Dadhaniya contributes 2 patches for the mcp251xfd driver that
add transceiver standby control.
The last 2 aptches are by Johan Hovold and refactor the usb endpoint
lookup of the kvaser_usb and ucan driver.
* tag 'linux-can-next-for-7.1-20260401' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
can: ucan: refactor endpoint lookup
can: rcar_can: Convert to FIELD_MODIFY()
can: mcp251xfd: add support for XSTBYEN transceiver standby control
can: kvaser_usb: leaf: refactor endpoint lookup
net: can: ctucanfd: remove useless copy of PCI_DEVICE_DATA macro
dt-bindings: can: mcp251xfd: add microchip,xstbyen property
====================
Link: https://patch.msgid.link/20260401073338.5592-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Martin KaFai Lau says:
====================
pull-request: bpf-next 2026-04-01
We've added 2 non-merge commits during the last 2 day(s) which contain
a total of 3 files changed, 139 insertions(+), 23 deletions(-).
The main changes are:
1) skb_dst_drop(skb) when bpf prog does a encap or decap,
from Jakub Kicinski
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next:
selftests/bpf: Test that dst is cleared on same-protocol encap
net: Clear the dst when performing encap / decap
====================
Link: https://patch.msgid.link/20260401233956.4133413-1-martin.lau@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move the kfree() call outside the critical section to reduce lock
holding time. This aligns with the general principle of minimizing
work under locks.
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260331122604.1933-1-lirongqing@baidu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There is already an 'if PPP' condition wrapping several config options
e.g. PPP_MPPE and PPPOE, making the 'depends on PPP' statement for each of
these a duplicate dependency (dead code).
I propose leaving the outer 'if PPP...endif' and removing the individual
'depends on PPP' statement from each option.
This dead code was found by kconfirm, a static analysis tool for Kconfig.
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Reviewed-by: Qingfang Deng <dqfext@gmail.com>
Link: https://patch.msgid.link/20260330213258.13982-1-julianbraha@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move ip6_dst_hoplimit() to net/ipv6/ip6_output.c so that compiler
can (auto)inline it from ip6_xmit().
$ scripts/bloat-o-meter -t vmlinux.0 vmlinux.1
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-11 (-11)
Function old new delta
ip6_xmit 1684 1673 -11
Total: Before=29655407, After=29655396, chg -0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Fernando Fernandez Mancera <fmancera@suse.de>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260331174722.4128061-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com> says:
The MCP251xFD provides a dedicated transceiver standby control function via
the INT0/GPIO0/XSTBY pin, controlled by the XSTBYEN bit in IOCON. When
enabled, the hardware automatically drives the pin low while the controller
is active and high when it enters Sleep mode, allowing automatic standby
control of an external CAN transceiver without software intervention.
This series adds driver support for the XSTBYEN-based transceiver standby
control feature.
Tested on QCS6490 RB3 Gen2 with a PCAN-USB FD adapter: the transceiver is
active in normal mode, CAN communication works correctly, and the pin is
automatically managed across sleep and wake transitions.
Link: https://patch.msgid.link/20260321135031.3107408-1-viken.dadhaniya@oss.qualcomm.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Use the common USB helpers for looking up bulk and interrupt endpoints
(and determining endpoint numbers and max packet sizes) instead of open
coding.
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260330101817.1664787-3-johan@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The MCP251xFD has a dedicated transceiver standby control function on
the INT0/GPIO0/XSTBY pin, controlled by the XSTBYEN bit in IOCON.
When enabled, the hardware automatically manages the transceiver
standby state: the pin is driven low when the controller is active
and high when it enters Sleep mode.
Enable this feature when the 'microchip,xstbyen' device tree property
is present.
Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
Link: https://patch.msgid.link/20260321135031.3107408-3-viken.dadhaniya@oss.qualcomm.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Use the common USB helper for looking up bulk and interrupt endpoints
instead of open coding.
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260330101817.1664787-2-johan@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The ctucanfd driver has its own copy of the PCI_DEVICE_DATA macro. I
assume this was done to support older kernel versions where it didn't
exist, but that is irrelevant once the driver is in the mainline
kernel. Remove it.
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Link: https://patch.msgid.link/20260130114134.47421-1-enelsonmoore@gmail.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add the boolean property 'microchip,xstbyen' to enable the dedicated
transceiver standby control function on the INT0/GPIO0/XSTBY pin of
the MCP251xFD family.
Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260321135031.3107408-2-viken.dadhaniya@oss.qualcomm.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add missing return value descriptions for several functions in
net/iucv/af_iucv.c and net/iucv/iucv.c to address kernel-doc warnings.
Warnings detected with:
scripts/kernel-doc -none -Wall net/iucv/*
Warning: net/iucv/af_iucv.c:131 No description found for return value of 'iucv_msg_length'
Warning: net/iucv/af_iucv.c:150 No description found for return value of 'iucv_sock_in_state'
...
No functional change.
Reviewed-by: Aswin Karuvally <aswin@linux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Nagamani PV <nagamani@linux.ibm.com>
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Link: https://patch.msgid.link/20260330114436.2010108-1-wintera@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
IPv6 must be enabled or otherwise neigh_reduce() might cause a kernel
panic. This was prevented by a check on in6_dev. Use ipv6_mod_enabled()
instead as it is cleaner and also consistent with the code at
route_shortcircuit().
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260330121033.4479-1-fmancera@suse.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As a part of MANA hardening for CVM, validate the adapter_mtu value
returned from the MANA_QUERY_DEV_CONFIG HWC command.
The adapter_mtu value is used to compute ndev->max_mtu via:
gc->adapter_mtu - ETH_HLEN. If hardware returns a bogus adapter_mtu
smaller than ETH_HLEN (e.g. 0), the unsigned subtraction wraps to a
huge value, silently allowing oversized MTU settings.
Add a validation check to reject adapter_mtu values below
ETH_MIN_MTU + ETH_HLEN, returning -EPROTO to fail the device
configuration early with a clear error message.
Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com>
Link: https://patch.msgid.link/20260326173101.2010514-1-ernis@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The address latched in the I/O ASIC LANCE DMA Pointer Register uses the
TURBOchannel bus address encoding and therefore bits 33:29 of location
referred occupy bits 4:0, bits 28:2 are left-shifted by 3, and bits 1:0
are hardwired to zero. In reality no TURBOchannel system exceeds 1GiB
of RAM though, so the address reported will always fit in 8 hex digits.
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://patch.msgid.link/alpine.DEB.2.21.2603291839220.60268@angie.orcam.me.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Johan Hovold says:
====================
nfc: refactor USB endpoint lookups
Use the common USB helper for looking up bulk and interrupt endpoints
instead of open coding.
====================
Link: https://patch.msgid.link/20260330103655.1672331-1-johan@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use the common USB helpers for looking up bulk and interrupt endpoints
(and determining endpoint numbers) instead of open coding.
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260330103655.1672331-4-johan@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use the common USB helpers for looking up bulk and interrupt endpoints
(and determining endpoint numbers) instead of open coding.
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260330103655.1672331-3-johan@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Johan Hovold says:
====================
net: refactor USB endpoint lookups
Use the common USB helpers for looking up bulk and interrupt endpoints
instead of open coding.
====================
Link: https://patch.msgid.link/20260330102611.1671546-1-johan@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use the common USB helpers for looking up bulk and interrupt endpoints
instead of a custom implementation.
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260330102611.1671546-2-johan@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add ethtool op to advertise TX timestamping. Insert a
skb_tx_timestamp call in __efx_enqueue_skb.
Signed-off-by: Izabela Bakollari <ibakolla@redhat.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20260330063236.247057-1-ibakolla@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Test authors need to know about variants, existing tests don't use
them because variants are relatively recent.
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260331001930.3411279-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The BCM84891 and BCM84892 are 10GBASE-T PHYs in the same family as the
BCM84881, sharing the register map and most callbacks. They add USXGMII
as a host interface mode.
bcm8489x_config_init() is separate from bcm84881_config_init(): it
allows only USXGMII (the only host mode available on the tested
hardware) and clears MDIO_CTRL1_LPOWER, which is set at boot on the
tested platform. Does not recur on ifdown/ifup, cable events, or
link-partner advertisement changes, so config_init is sufficient.
For USXGMII, read_status() skips the 0x4011 host-mode register: it
returns the same value regardless of negotiated copper speed (USXGMII
symbol replication). Speed comes from phy_resolve_aneg_linkmode() via
standard C45 AN resolution.
Tested on TRENDnet TEG-S750 (RTL9303 + 1x BCM84891 + 4x BCM84892)
running OpenWrt, where the MDIO controller driver is currently
OpenWrt-specific. Link verified at 100M, 1G, 2.5G, 10G.
Signed-off-by: Daniel Wagner <wagner.daniel.t@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20260330225310.2801264-1-wagner.daniel.t@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Call mxl862xx_host_shutdown() in case dsa_register_switch() returns
an error, so any still pending crc_err_work get canceled.
Fixes: a319d0c8c8 ("net: dsa: mxl862xx: add CRC for MDIO communication")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/3fd163f5bb88de426ca9847549f94b4296170ef0.1774911025.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add ATTR CSR bit field definitions for the DMA engine TLP header
configuration registers:
AW_CFG: RDE_ATTR[17:15], RQM_ATTR[14:12], TQM_ATTR[11:9]
AR_CFG: TDE_ATTR[17:15], RQM_ATTR[14:12], TQM_ATTR[11:9]
These fields control the PCIe TLP attribute bits for outbound
transactions from the TQM, RQM, RDE (write path), and TDE (read path)
DMA engines. An enum is added with standard PCIe TLP attribute values:
NS (No Snoop), RO (Relaxed Ordering), and IDO (ID-based Ordering).
Read the PCIe Relaxed Ordering capability at probe time and store it in
fbnic_dev. Configure Relaxed Ordering on the PCIe TLP attributes in
fbnic_mbx_init_desc_ring when the capability is enabled. For the write
path (AW_CFG), set RO on RDE and TQM attributes. For the read path
(AR_CFG), set RO on all three attributes (TDE, RQM, TQM). This allows
the PCIe fabric to reorder these transactions for improved throughput.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: Dimitri Daskalakis <daskald@meta.com>
Link: https://patch.msgid.link/20260327204445.3074446-1-dimitri.daskalakis1@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add the following bitwise operation functions for PHY OCP registers to
simplify the code.
- ocp_reg_w0w1()
- ocp_reg_clr_bits()
- ocp_reg_set_bits()
- sram_write_w0w1()
- sram_clr_bits()
- sram_set_bits()
- r8152_mdio_clr_bit()
- r8152_mdio_set_bit()
- r8152_mdio_test_and_clr_bit()
In addition, remove variable set but not used from r8153_init(),
r8153b_init() and r8153c_init().
Signed-off-by: Chih Kai Hsu <hsu.chih.kai@realtek.com>
Reviewed-by: Hayes Wang <hayeswang@realtek.com>
Link: https://patch.msgid.link/20260326073925.32976-456-nic_swsd@realtek.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The old code used ocp_write_byte() to clear the OOBS_POLLING bit
(BIT(8)) in the USB_UPHY_XTAL register, but this doesn't correctly
clear a bit in the upper byte of the 16-bit register.
Fix this by using ocp_write_word() instead.
Fixes: 195aae321c ("r8152: support new chips")
Signed-off-by: Chih Kai Hsu <hsu.chih.kai@realtek.com>
Reviewed-by: Hayes Wang <hayeswang@realtek.com>
Link: https://patch.msgid.link/20260326073925.32976-454-nic_swsd@realtek.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Prevent the system from becoming unstable or unusable due to a flood of
memory allocation error messages under memory pressure.
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/alpine.DEB.2.21.2603291252380.60268@angie.orcam.me.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Russell King says:
====================
net: stmmac: qcom-ethqos: more cleanups
Further cleanups to qcom-ethqos, mainly concentrating on the RGMII
code, making it clearer what the differences are for each speed, thus
making the code more readable.
I'm still not really happy with this. The speed specific configuration
remains split between ethqos_fix_mac_speed_rgmii() and
ethqos_rgmii_macro_init(), where the latter is only ever called from
the former. So, I think further work is needed here - maybe it needs
restructuring into the various componenet parts of the RGMII block?
====================
Link: https://patch.msgid.link/acZDEg9wdjhBTHlL@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move the determination of the phase shift enable alongside the register
update, and make "phase_shift" unsigned.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1w62o3-0000000E3DE-3Vf8@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The comment for calculating the prg_rclk_dly value is incorrect as it
omits the brackets around the divisor. Add the brackets to allow the
reader to correctly evaluate the value. Validated with the values given
in the driver.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1w62ny-0000000E3D8-38Yp@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move the loopback decision next to the register update, and make the
local variable unsigned. As a result, there is now no need for the
comment referring to the programming being later.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1w62nt-0000000E3D2-2fWk@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Rather than coding the entire register update twice with different
values, use a local variable to specify the value and have one
register update statement that uses this local variable. This results
in neater code.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1w62no-0000000E3Cw-2EmH@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move the RCLK delay configuration out of the switch, which just leaves
the RGMII_CONFIG_LOOPBACK_EN setting in all three paths. This makes it
trivial to eliminate the switch.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1w62nj-0000000E3Cq-1lPL@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move RGMII_CONFIG2_RX_PROG_SWAP out of the switch. 1G speed always
sets this field. 100M and 10M sets it for has_emac_ge_3 devices,
otherwise it is cleared.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1w62ne-0000000E3Ck-1Haf@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
All paths through the switch clear the RGMII_CONFIG2_RSVD_CONFIG15
field. move it out of the switch statement.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1w62nZ-0000000E3Ce-0lyP@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
