====================
Add DWMAC glue driver for Motorcomm YT6801
This series adds glue driver for Motorcomm YT6801 PCIe ethernet
controller, which is considered mostly compatible with DWMAC-4 IP by
inspecting the register layout[1]. It integrates a Motorcomm YT8531S PHY
(confirmed by reading PHY ID) and GMII is used to connect the PHY to
MAC[2].
The initialization logic of the MAC is mostly based on previous upstream
effort for the controller[3] and the Deepin-maintained downstream Linux
driver[4] licensed under GPL-2.0 according to its SPDX headers. However,
this series is a completely re-write of the previous patch series,
utilizing the existing DWMAC4 driver and introducing a glue driver only.
This series only aims to add basic networking functions for the
controller, features like WoL, RSS and LED control are omitted for now.
Testing is done on i3-4170, it reaches 939Mbps (TX)/933Mbps (RX) on
average,
Yao Zi [Fri, 9 Jan 2026 09:34:45 +0000 (09:34 +0000)]
net: stmmac: Add glue driver for Motorcomm YT6801 ethernet controller
Motorcomm YT6801 is a PCIe ethernet controller based on DWMAC4 IP. It
integrates an GbE phy, supporting WOL, VLAN tagging and various types
of offloading. It ships an on-chip eFuse for storing various vendor
configuration, including MAC address.
This patch adds basic glue code for the controller, allowing it to be
set up and transmit data at a reasonable speed. Features like WOL could
be implemented in the future.
Signed-off-by: Yao Zi <me@ziyao.cc> Tested-by: Mingcong Bai <jeffbai@aosc.io> Tested-by: Runhua He <hua@aosc.io> Tested-by: Xi Ruoyao <xry111@xry111.site> Reviewed-by: Sai Krishna <saikrishnag@marvell.com> Link: https://patch.msgid.link/20260109093445.46791-4-me@ziyao.cc Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Yao Zi [Fri, 9 Jan 2026 09:34:44 +0000 (09:34 +0000)]
net: phy: motorcomm: Support YT8531S PHY in YT6801 Ethernet controller
YT6801's internal PHY is confirmed as a GMII-capable variant of YT8531S
by a previous series[1] and reading PHY ID. Add support for
PHY_INTERFACE_MODE_GMII for YT8531S to allow the Ethernet driver to
reuse the PHY code for its internal PHY.
Ankit Khushwaha [Fri, 9 Jan 2026 15:22:01 +0000 (20:52 +0530)]
selftests/net/ipsec: Fix variable size type not at the end of struct
The "struct alg" object contains a union of 3 xfrm structures:
union {
struct xfrm_algo;
struct xfrm_algo_aead;
struct xfrm_algo_auth;
}
All of them end with a flexible array member used to store key material,
but the flexible array appears at *different offsets* in each struct.
bcz of this, union itself is of variable-sized & Placing it above
char buf[...] triggers:
ipsec.c:835:5: warning: field 'u' with variable sized type 'union
(unnamed union at ipsec.c:831:3)' not at the end of a struct or class
is a GNU extension [-Wgnu-variable-sized-type-not-at-end]
835 | } u;
| ^
one fix is to use "TRAILING_OVERLAP()" which works with one flexible
array member only.
But In "struct alg" flexible array member exists in all union members,
but not at the same offset, so TRAILING_OVERLAP cannot be applied.
so the fix is to explicitly overlay the key buffer at the correct offset
for the largest union member (xfrm_algo_auth). This ensures that the
flexible-array region and the fixed buffer line up.
====================
net: stmmac: cleanups and low priority fixes
Further cleanups and a few low priority fixes:
- Remove duplicated register definitions from header files
- Fix harmless wrong definition used for PTP message type in
descriptors
- Fix norm_set_tx_desc_len_on_ring() off-by-one error (and make
enh_set_tx_desc_len_on_ring() follow a similar pattern.)
Document the buffer size limits. I believe we never call
norm_set_tx_desc_len_on_ring() with 2KiB lengths.
- use u32 rather than unsigned int for 32-bit quantities in
descriptors
- modernise: convert to use FIELD_PREP() rather than separate mask
and shift definitions.
- Reorganise register and register field definitions: registers
defined in address offset order followed by their register field
definitions.
- Remove lots of unused register definitions.
====================
net: stmmac: cores: remove many xxx_SHIFT definitions
We have many xxx_SHIFT definitions along side their corresponding
xxx_MASK definitions for the various cores. Manually using the
shift and mask can be error prone, as shown with the dwmac4 RXFSTS
fix patch.
Convert sites that use xxx_SHIFT and xxx_MASK directly to use
FIELD_GET(), FIELD_PREP(), and u32_replace_bits() as appropriate.
net: stmmac: descs: remove many xxx_SHIFT definitions
Remove many xxx_SHIFT definitions for descriptors, isntead using
FIELD_PREP(), FIELD_GET(), and u32_replace_bits() as appropriate to
manipulate the bitfields. This avoids potential errors where an
incorrect shift is used with a mask.
Use u32 rather than unsigned int for 32-bit descriptor variables.
This will allow the u32 bitfield helpers to be used. Note, we use
__le32 for the in-memory descriptor structures.
norm_set_tx_desc_len_on_ring() incorrectly tests the buffer length,
leading to a length of 2048 being squeezed into a bitfield covering
bits 10:0 - which results in the buffer 1 size being zero.
If this field is zero, buffer 1 is ignored, and thus is equivalent to
transmitting a zero length buffer.
The path to norm_set_tx_desc_len_on_ring() is only possible when the
hardware does not support enhanced descriptors (plat->enh_desc clear)
which is dependent on the hardware.
The correct definition is RDES1_PTP_MSG_TYPE_MASK, which is also
defined as:
#define RDES1_PTP_MSG_TYPE_MASK GENMASK(11, 8)
Use the correct definition, converting to use FIELD_GET() to extract
it without needing an open-coded shift right that is dependent on the
mask definition.
As this change has no effect on the generated code, there is no need
to treat this as a bug fix.
where rxfsts is tested against small integers 1 .. 3. This results in
the tests always failing, causing the "mtl_rx_fifo__fill_level_empty"
statistic counter to always be incremented no matter what the fill
level actually is.
Fix this by using FIELD_GET() and remove the unnecessary
MTL_DEBUG_RXFSTS_SHIFT definition as FIELD_GET() will shift according
to the least siginificant set bit in the supplied field mask.
Bobby Eshleman [Thu, 8 Jan 2026 01:29:38 +0000 (17:29 -0800)]
net: devmem: convert binding refcount to percpu_ref
Convert net_devmem_dmabuf_binding refcount from refcount_t to percpu_ref
to optimize common-case reference counting on the hot path.
The typical devmem workflow involves binding a dmabuf to a queue
(acquiring the initial reference on binding->ref), followed by
high-volume traffic where every skb fragment acquires a reference.
Eventually traffic stops and the unbind operation releases the initial
reference. Additionally, the high traffic hot path is often multi-core.
This access pattern is ideal for percpu_ref as the first and last
reference during bind/unbind normally book-ends activity in the hot
path.
__net_devmem_dmabuf_binding_free becomes the percpu_ref callback invoked
when the last reference is dropped.
kperf test:
- 4MB message sizes
- 60s of workload each run
- 5 runs
- 4 flows
Jakub Kicinski [Tue, 13 Jan 2026 01:26:45 +0000 (17:26 -0800)]
Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-01-09 (ice, ixgbe, idpf)
For ice:
Grzegorz commonizes firmware loading process across all ice devices.
Michal adjusts default queue allocation to be based on
netif_get_num_default_rss_queues() rather than num_online_cpus().
For ixgbe:
Birger Koblitz adds support for 10G-BX modules.
For idpf:
Sreedevi converts always successful function to return void.
Andy Shevchenko fixes kdocs for missing 'Return:' in idpf_txrx.c file.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
idpf: Fix kernel-doc descriptions to avoid warnings
idpf: update idpf_up_complete() return type to void
ice: use netif_get_num_default_rss_queues()
ixgbe: Add 10G-BX support
ice: unify PHY FW loading status handler for E800 devices
====================
Jakub Kicinski [Tue, 13 Jan 2026 01:02:02 +0000 (17:02 -0800)]
Merge tag 'wireless-next-2026-01-12' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
First set of changes for the current -next cycle, of note:
- ath12k gets an overhaul to support multi-wiphy device
wiphy and pave the way for future device support in
the same driver (rather than splitting to ath13k)
- mac80211 gets some better iteration macros
* tag 'wireless-next-2026-01-12' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (120 commits)
wifi: mac80211: remove width argument from ieee80211_parse_bitrates
wifi: mac80211_hwsim: remove NAN by default
wifi: mac80211: improve station iteration ergonomics
wifi: mac80211: improve interface iteration ergonomics
wifi: cfg80211: include S1G_NO_PRIMARY flag when sending channel
wifi: mac80211: unexport ieee80211_get_bssid()
wl1251: Replace strncpy with strscpy in wl1251_acx_fw_version
wifi: iwlegacy: 3945-rs: remove redundant pointer check in il3945_rs_tx_status() and il3945_rs_get_rate()
wifi: mac80211: don't send an unused argument to ieee80211_check_combinations
wifi: libertas: fix WARNING in usb_tx_block
wifi: mwifiex: Allocate dev name earlier for interface workqueue name
wifi: wlcore: sdio: Use pm_ptr instead of #ifdef CONFIG_PM
wifi: cfg80211: Fix use_for flag update on BSS refresh
wifi: brcmfmac: rename function that frees vif
wifi: brcmfmac: fix/add kernel-doc comments
wifi: mac80211: Update csa_finalize to use link_id
wifi: cfg80211: add cfg80211_stop_link() for per-link teardown
wifi: ath12k: Skip DP peer creation for scan vdev
wifi: ath12k: move firmware stats request outside of atomic context
wifi: ath12k: add the missing RCU lock in ath12k_dp_tx_free_txbuf()
...
====================
====================
tools: ynl: cli: improve the help and doc
I had some time on the plane to LPC, so here are improvements
to the --help and --list-attrs handling of YNL CLI which seem
in order given growing use of YNL as a real CLI tool.
====================
Jakub Kicinski [Sat, 10 Jan 2026 23:31:42 +0000 (15:31 -0800)]
tools: ynl: cli: print reply in combined format if possible
As pointed out during review of the --list-attrs support the GET
ops very often return the same attrs from do and dump. Make the
output more readable by combining the reply information, from:
Do request attributes:
- ifindex: u32
netdev ifindex
Do reply attributes:
- ifindex: u32
netdev ifindex
[ .. other attrs .. ]
Do request attributes:
- ifindex: u32
netdev ifindex
Do and Dump reply attributes:
- ifindex: u32
netdev ifindex
[ .. other attrs .. ]
Tested-by: Gal Pressman <gal@nvidia.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20260110233142.3921386-8-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Sat, 10 Jan 2026 23:31:41 +0000 (15:31 -0800)]
tools: ynl: cli: extract the event/notify handling in --list-attrs
Event and notify handling is quite different from do / dump
handling. Forcing it into print_mode_attrs() doesn't really
buy us anything as events and notifications do not have requests.
Call print_attr_list() directly. Apart form subjective code
clarity this also removes the word "reply" from the output:
Before:
Event reply attributes:
Now:
Event attributes:
Tested-by: Gal Pressman <gal@nvidia.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20260110233142.3921386-7-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Sat, 10 Jan 2026 23:31:40 +0000 (15:31 -0800)]
tools: ynl: cli: factor out --list-attrs / --doc handling
We'll soon add more code to the --doc handling. Factor it out
to avoid making main() too long.
Tested-by: Gal Pressman <gal@nvidia.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20260110233142.3921386-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Sat, 10 Jan 2026 23:31:39 +0000 (15:31 -0800)]
tools: ynl: cli: add --doc as alias to --list-attrs
--list-attrs also provides information about the operation itself.
So --doc seems more appropriate. Add an alias.
Tested-by: Gal Pressman <gal@nvidia.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20260110233142.3921386-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Sat, 10 Jan 2026 23:31:38 +0000 (15:31 -0800)]
tools: ynl: cli: improve --help
Improve the clarity of --help. Reorder, provide some grouping and
add help messages to most of the options.
No functional changes intended.
Tested-by: Gal Pressman <gal@nvidia.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20260110233142.3921386-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Sat, 10 Jan 2026 23:31:37 +0000 (15:31 -0800)]
tools: ynl: cli: wrap the doc text if it's long
We already use textwrap when printing "doc" section about an attribute,
but only to indent the text. Switch to using fill() to split and indent
all the lines. While at it indent the text by 2 more spaces, so that it
doesn't align with the name of the attribute.
Before (I'm drawing a "box" at ~60 cols here, in an attempt for clarity):
| - irq-suspend-timeout: uint |
| The timeout, in nanoseconds, of how long to suspend irq|
|processing, if event polling finds events |
After:
| - irq-suspend-timeout: uint |
| The timeout, in nanoseconds, of how long to suspend |
| irq processing, if event polling finds events |
Tested-by: Gal Pressman <gal@nvidia.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20260110233142.3921386-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Sat, 10 Jan 2026 23:31:36 +0000 (15:31 -0800)]
tools: ynl: cli: introduce formatting for attr names in --list-attrs
It's a little hard to make sense of the output of --list-attrs,
it looks like a wall of text. Sprinkle a little bit of formatting -
make op and attr names bold, and Enum: / Flags: keywords italics.
Tested-by: Gal Pressman <gal@nvidia.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20260110233142.3921386-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Miri Korenblit [Thu, 8 Jan 2026 13:32:57 +0000 (14:32 +0100)]
wifi: mac80211: remove width argument from ieee80211_parse_bitrates
The width parameter in ieee80211_parse_bitrates() is unused. Remove it.
While at it, use the already fetched sband pointer as an argument
instead of dereferencing it once again.
Johannes Berg [Thu, 8 Jan 2026 13:31:38 +0000 (14:31 +0100)]
wifi: mac80211_hwsim: remove NAN by default
We're improving NAN support, but NAN datapath support also
means we need to change some other things, e.g. related to
rate control. Remove NAN by default again from hwsim since
it's the much newer feature.
Johannes Berg [Thu, 8 Jan 2026 13:34:32 +0000 (14:34 +0100)]
wifi: mac80211: improve station iteration ergonomics
Right now, the only way to iterate stations is to declare an
iterator function, possibly data structure to use, and pass all
that to the iteration helper function. This is annoying, and
there's really no inherent need for it.
Add a new for_each_station() macro that does the iteration in
a more ergonomic way. To avoid even more exported functions, do
the old ieee80211_iterate_stations_mtx() as an inline using the
new way, which may also let the compiler optimise it a bit more,
e.g. via inlining the iterator function.
Right now, the only way to iterate interfaces is to declare an
iterator function, possibly data structure to use, and pass all
that to the iteration helper function. This is annoying, and
there's really no inherent need for it, except it was easier to
implement with the iflist mutex, but that's not used much now.
Add a new for_each_interface() macro that does the iteration in
a more ergonomic way. To avoid even more exported functions, do
the old ieee80211_iterate_active_interfaces_mtx() as an inline
using the new way, which may also let the compiler optimise it
a bit more, e.g. via inlining the iterator function.
Also provide for_each_active_interface() for the common case of
just iterating active interfaces.
Thorsten Blum [Sun, 11 Jan 2026 13:42:57 +0000 (14:42 +0100)]
wl1251: Replace strncpy with strscpy in wl1251_acx_fw_version
strncpy() is deprecated [1] for NUL-terminated destination buffers since
it does not guarantee NUL termination. Remove the manual NUL termination
and replace strncpy() with strscpy() to ensure NUL termination of the
destination buffer.
Using strscpy_pad() to retain the NUL-padding behavior of strncpy() is
not needed because ->fw_ver is only used as a C-string.
Jakub Kicinski [Sat, 10 Jan 2026 23:19:54 +0000 (15:19 -0800)]
Merge branch 'bnxt_en-updates-for-net-next'
Michael Chan says:
====================
bnxt_en: Updates for net-next
This patchset updates the driver with a FW interface update to support
FEC stats histogram and NVRAM defragmentation. Patch #2 adds PTP
cross timestamps [1]. Patch #3 adds FEC histogram stats. Patch #4 adds
NVRAM defragmentation support that prevents FW update failure when NVRAM
is fragmented. Patch #5 improves RSS distribution accuracy when certain
number of rings is in use. The last patch adds ethtool
.get_link_ext_state() support.
====================
Map the link_down_reason from the FW to the ethtool link_ext_state
when it is available. Also log it to the link down dmesg when it is
available. Add 2 new link_ext_state enums to the UAPI:
Michael Chan [Thu, 8 Jan 2026 18:35:20 +0000 (10:35 -0800)]
bnxt_en: Use a larger RSS indirection table on P5_PLUS chips
The driver currently uses a chip supported RSS indirection table size
just big enough to cover the number of RX rings. Each table with 64
entries requires one HW RSS context. The HW supported table sizes are
64, 128, 256, and 512 entries. Using the smallest table size can cause
unbalanced RSS packet distributions. For example, if the number of
rings is 48, the table size using existing logic will be 64. 32 rings
will have a weight of 1 and 16 rings will have a weight of 2 when
set to default even distribution. This represents a 100% difference in
weights between some of the rings.
Newer FW has increased the RSS indirection table resource. When the
increased resource is detected, use the largest RSS indirection table
size (512 entries) supported by the chip. Using the same example
above, the weights of the 48 rings will be either 10 or 11 when set to
default even distribution. The weight difference is only 10%.
If there are thousands of VFs, there is a possiblity that we may not
be able to allocate this larger RSS indirection table from the FW, so
we add a check to fall back to the legacy scheme.
Pavan Chebbi [Thu, 8 Jan 2026 18:35:19 +0000 (10:35 -0800)]
bnxt_en: Defrag the NVRAM region when resizing UPDATE region fails
When updating to a new firmware pkg, the driver checks if the UPDATE
region is big enough for the pkg and if it's not big enough, it
issues an NVM_WRITE cmd to update with the requested size.
This NVM_WRITE cmd can fail indicating fragmented region. Currently
the driver fails the fw update when this happens. We can improve the
situation by defragmenting the region and try the NVM_WRITE cmd
again. This will make firmware update more reliable.
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com> Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://patch.msgid.link/20260108183521.215610-5-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Michael Chan [Thu, 8 Jan 2026 18:35:18 +0000 (10:35 -0800)]
bnxt_en: Add support for FEC bin histograms
Fill in the struct ethtool_fec_hist passed to the bnxt_get_fec_stats()
callback if the FW supports the feature. Bins 0 to 15 inclusive are
available when the feature is supported.
Pavan Chebbi [Thu, 8 Jan 2026 18:35:17 +0000 (10:35 -0800)]
bnxt_en: Add PTP .getcrosststamp() interface to get device/host times
.getcrosststamp() helps the applications to obtain a snapshot of
device and host time almost taken at the same time. This function
will report PCIe PTM device and host times to any application using
the ioctl PTP_SYS_OFFSET_PRECISE. The device time from the HW is
48-bit and needs to be converted to 64-bit.
Michael Chan [Thu, 8 Jan 2026 18:35:16 +0000 (10:35 -0800)]
bnxt_en: Update FW interface to 1.10.3.151
The main changes are the new HWRM_PORT_PHY_FDRSTAT command to collect
FEC histogram bins and the new HWRM_NVM_DEFRAG command to defragment the
NVRAM. There is also a minor name change in struct hwrm_vnic_cfg_input
that requires updating the bnxt_re driver's main.c.
Jakub Kicinski [Thu, 8 Jan 2026 22:52:57 +0000 (14:52 -0800)]
selftests: net: py: ensure defer() is only used within a test case
I wasted a couple of hours recently after accidentally adding
a defer() from within a function which itself was called as
part of defer(). This leads to an infinite loop of defer().
Make sure this cannot happen and raise a helpful exception.
I understand that the pair of _ksft_defer_arm() calls may
not be the most Pythonic way to implement this, but it's
easy enough to understand.
Jakub Kicinski [Thu, 8 Jan 2026 22:52:56 +0000 (14:52 -0800)]
selftests: net: py: capitalize defer queue and improve import
Import utils and refer to the global defer queue that way instead
of importing the queue. This will make it possible to assign value
to the global variable. While at it capitalize the name, to comply
with the Python coding style.
Cosmin Ratiu [Fri, 9 Jan 2026 11:08:51 +0000 (13:08 +0200)]
selftests: drv-net: psp: Better control the used PSP dev
The PSP responder fails when zero or multiple PSP devices are detected.
There's an option to select the device id to use (-d) but it's
currently not used from the PSP self test. It's also hard to use because
the PSP test doesn't dump the PSP devices so can't choose one.
When zero devices are detected, psp_responder fails which will cause the
parent test to fail as well instead of skipping PSP tests.
Fix both of these problems. Change psp_responder to:
- not fail when no PSP devs are detected.
- get an optional -i ifindex argument instead of -d.
- select the correct PSP dev from the dump corresponding to ifindex or
- select the first PSP dev when -i is not given.
- fail when multiple devs are found and -i is not given.
- warn and continue when the requested ifindex is not found.
Also plumb the ifindex from the Python test.
With these, when there are no PSP devs found or the wrong one is chosen,
psp_responder opens the server socket, listens for control connections
normally, and leaves the skipping of the various test cases which
require a PSP device (~most, but not all of them) to the parent test.
This results in output like:
ok 1 psp.test_case # SKIP No PSP devices found
[...]
ok 12 psp.dev_get_device # SKIP No PSP devices found
ok 13 psp.dev_get_device_bad
ok 14 psp.dev_rotate # SKIP No PSP devices found
[...]
====================
net: convert drivers to .get_rx_ring_count()
Commit 84eaf4359c36 ("net: ethtool: add get_rx_ring_count callback to
optimize RX ring queries") added specific support for GRXRINGS callback,
simplifying .get_rxnfc.
Remove the handling of GRXRINGS in .get_rxnfc() by moving it to the new
.get_rx_ring_count().
This simplifies the RX ring count retrieval and aligns the following
drivers with the new ethtool API for querying RX ring parameters.
* hns3
* hns
* qede
* niu
* funeth
* enic
* hinic
* octeontx2
PS: all of these change were compile-tested only.
====================
Breno Leitao [Thu, 8 Jan 2026 11:43:00 +0000 (03:43 -0800)]
net: stmmac: convert to use .get_rx_ring_count
Convert the stmmac driver to use the new .get_rx_ring_count
ethtool operation instead of implementing .get_rxnfc for handling
ETHTOOL_GRXRINGS command.
Since stmmac_get_rxnfc() only handled ETHTOOL_GRXRINGS (returning
-EOPNOTSUPP for all other commands), remove it entirely and replace
it with the simpler stmmac_get_rx_ring_count() callback.
Gal Pressman [Wed, 7 Jan 2026 09:18:47 +0000 (11:18 +0200)]
net/mlx5e: TSO for UDP over GRE over vlan packets
The hardware supports segmentation offload of UDP over GRE over vlan
packets, allow it by adding NETIF_F_GSO_UDP_L4 to hw_enc_features which
will make the vlan device inherit it to its own hw_enc_features.
Side note: it is quite confusing that this change wasn't needed to
offload encapsulated UDP packets regardless of vlan, but that's the way
that the stack handles gso partial features, it assumes they're
supported without caring if the feature is supported in hw_enc_features.
Signed-off-by: Gal Pressman <gal@nvidia.com> Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Mark Bloch <mbloch@nvidia.com> Link: https://patch.msgid.link/20260107091848.621884-3-mbloch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
SGMII in-band autonegotiation was previously kept untouched (and restored
after switching back from 2500Base-X to SGMII). Now that the kernel offers
a way to announce in-band capabilities and nable/disable in-band AN,
implement the .inband_caps and .config_inband driver ops.
This moves the responsibility to configure SGMII in-band AN from the PHY
driver to phylink.
Jakub Kicinski [Wed, 7 Jan 2026 23:25:57 +0000 (15:25 -0800)]
selftests: drv-net: gro: increase the rcvbuf size
The gro.py test (testing software GRO) is slightly flaky when
running against fbnic. We see one flake per roughly 20 runs in NIPA,
mostly in ipip.large, and always including some EAGAIN:
# Shouldn't coalesce if exceed IP max pkt size: Test succeeded
# Expected {65475 899 }, Total 2 packets
# Received {65475 899 }, Total 2 packets.
# Expected {64576 900 900 }, Total 3 packets
# Received {64576 /home/virtme/testing/wt-24/tools/testing/selftests/drivers/net/gro: could not receive: Resource temporarily unavailable
The test sends 2 large frames (64k + change). Looks like the default
packet socket rcvbuf (~200kB) may not be large enough to hold them.
Bump the rcvbuf to 1MB.
Add a debug print showing socket statistics to make debugging this
issue easier in the future. Without the rcvbuf increase we see:
# Shouldn't coalesce if exceed IP max pkt size: Test succeeded
# Expected {65475 899 }, Total 2 packets
# Received {65475 899 }, Total 2 packets.
# Expected {64576 900 900 }, Total 3 packets
# Received {64576 Socket stats: packets=7, drops=3
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# /home/virtme/testing/wt-24/tools/testing/selftests/drivers/net/gro: could not receive: Resource temporarily unavailable
Jakub Kicinski [Tue, 6 Jan 2026 20:02:05 +0000 (12:02 -0800)]
selftests: tls: avoid flakiness in data_steal
We see the following failure a few times a week:
# RUN global.data_steal ...
# tls.c:3280:data_steal:Expected recv(cfd, buf2, sizeof(buf2), MSG_DONTWAIT) (10000) == -1 (-1)
# data_steal: Test failed
# FAIL global.data_steal
not ok 8 global.data_steal
The 10000 bytes read suggests that the child process did a recv()
of half of the data using the TLS ULP and we're now getting the
remaining half. The intent of the test is to get the child to
enter _TCP_ recvmsg handler, so it needs to enter the syscall before
parent installed the TLS recvmsg with setsockopt(SOL_TLS).
Instead of the 10msec sleep send 1 byte of data and wait for the
child to consume it.
Sreedevi Joshi [Wed, 26 Nov 2025 17:02:16 +0000 (11:02 -0600)]
idpf: update idpf_up_complete() return type to void
idpf_up_complete() function always returns 0 and no callers use this return
value. Although idpf_vport_open() checks the return value, it only handles
error cases which never occur. Change the return type to void to simplify
the code.
Signed-off-by: Sreedevi Joshi <sreedevi.joshi@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
On some high-core systems (like AMD EPYC Bergamo, Intel Clearwater
Forest) loading ice driver with default values can lead to queue/irq
exhaustion. It will result in no additional resources for SR-IOV.
In most cases there is no performance reason for more than half
num_cpus(). Limit the default value to it using generic
netif_get_num_default_rss_queues().
Still, using ethtool the number of queues can be changed up to
num_online_cpus(). It can be done by calling:
$ethtool -L ethX combined $(nproc)
This change affects only the default queue amount.
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Birger Koblitz [Tue, 2 Dec 2025 05:57:48 +0000 (06:57 +0100)]
ixgbe: Add 10G-BX support
Add support for 10G-BX modules, i.e. 10GBit Ethernet over a single strand
Single-Mode fiber.
The initialization of a 10G-BX SFP+ is the same as for a 10G SX/LX module,
and is identified according to SFF-8472 table 5-3, footnote 3 by the
10G Ethernet Compliance Codes field being empty, the Nominal Bit
Rate being compatible with 12.5GBit, and the module being a fiber module
with a Single Mode fiber link length.
This was tested using a Lightron WSPXG-HS3LC-IEA 1270/1330nm 10km
transceiver:
$ sudo ethtool -m enp1s0f1
Identifier : 0x03 (SFP)
Extended identifier : 0x04 (GBIC/SFP defined by 2-wire interface ID)
Connector : 0x07 (LC)
Transceiver codes : 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Encoding : 0x01 (8B/10B)
BR Nominal : 10300MBd
Rate identifier : 0x00 (unspecified)
Length (SMF) : 10km
Length (OM2) : 0m
Length (OM1) : 0m
Length (Copper or Active cable) : 0m
Length (OM3) : 0m
Laser wavelength : 1330nm
Vendor name : Lightron Inc.
Vendor OUI : 00:13:c5
Vendor PN : WSPXG-HS3LC-IEA
Vendor rev : 0000
Option values : 0x00 0x1a
Option : TX_DISABLE implemented
BR margin max : 0%
BR margin min : 0%
Vendor SN : S142228617
Date code : 140611
Optical diagnostics support : Yes
Signed-off-by: Birger Koblitz <mail@birger-koblitz.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Grzegorz Nitka [Fri, 17 Oct 2025 08:42:28 +0000 (10:42 +0200)]
ice: unify PHY FW loading status handler for E800 devices
Unify handling of PHY firmware load delays across all E800 family
devices. There is an existing mechanism to poll GL_MNG_FWSM_FW_LOADING_M
bit of GL_MNG_FWSM register in order to verify whether PHY FW loading
completed or not. Previously, this logic was limited to E827 variants
only.
Also, inform a user of possible delay in initialization process, by
dumping informational message in dmesg log ("Link initialization is
blocked by PHY FW initialization. Link initialization will continue
after PHY FW initialization completes.").
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
------------------------------------------------------------------
Your code has been rated at 9.97/10 (previous run: 8.59/10, +1.38)
====================
====================
support for hwtstamp_get in phy - part 2
There are 2 drivers which had some inconsistency in HW timestamping
configuration logic. Improve both of them and add hwtstamp_get()
callback.
====================
The driver stores new HW timestamping configuration values
unconditionally and may create inconsistency with what is actually
configured in case of error. Improve the logic to store new values only
once everything is configured.
The driver was adjusting stored values independently of what was
actually supported and configured. Improve logic to store values
once all checks are passing
Randy Dunlap [Tue, 6 Jan 2026 17:32:24 +0000 (09:32 -0800)]
sfc: correct kernel-doc complaints
Fix kernel-doc warnings by adding 3 missing struct member descriptions
in struct efx_ef10_nic_data and removing preprocessor directives (which
are not handled by kernel-doc).
Fixes these 5 warnings:
Warning: drivers/net/ethernet/sfc/nic.h:158 bad line: #ifdef CONFIG_SFC_SRIOV
Warning: drivers/net/ethernet/sfc/nic.h:160 bad line: #endif
Warning: drivers/net/ethernet/sfc/nic.h:204 struct member 'port_id'
not described in 'efx_ef10_nic_data'
Warning: drivers/net/ethernet/sfc/nic.h:204 struct member 'vf_index'
not described in 'efx_ef10_nic_data'
Warning: drivers/net/ethernet/sfc/nic.h:204 struct member 'licensed_features'
not described in 'efx_ef10_nic_data'
Frank Li [Tue, 6 Jan 2026 14:36:19 +0000 (09:36 -0500)]
dt-bindings: net: dsa: microchip: Make pinctrl 'reset' optional
Commit e469b87e0fb0d ("dt-bindings: net: dsa: microchip: Add strap
description to set SPI mode") required both 'default' and 'reset' pinctrl
states for all compatible devices. However, this requirement should be only
applicable to KSZ8463.
Make the 'reset' pinctrl state optional for all other Microchip DSA
devices while keeping it mandatory for KSZ8463.
Fix below CHECK_DTBS warnings:
arch/arm64/boot/dts/freescale/imx8mp-skov-basic.dtb: switch@5f (microchip,ksz9893): pinctrl-names: ['default'] is too short
from schema $id: http://devicetree.org/schemas/net/dsa/microchip,ksz.yaml#
Signed-off-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260106143620.126212-1-Frank.Li@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- ping: fix ICMP out SNMP stats double-counting with ICMP sockets
- bonding: preserve NETIF_F_ALL_FOR_ALL across TSO updates
- bridge: fix C-VLAN preservation in 802.1ad vlan_tunnel egress
- eth: bnxt: fix potential data corruption with HW GRO/LRO"
* tag 'net-6.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits)
arp: do not assume dev_hard_header() does not change skb->head
net: enetc: fix build warning when PAGE_SIZE is greater than 128K
atm: Fix dma_free_coherent() size
tools: ynl: don't install tests
net: do not write to msg_get_inq in callee
bnxt_en: Fix NULL pointer crash in bnxt_ptp_enable during error cleanup
net: usb: pegasus: fix memory leak in update_eth_regs_async()
net: 3com: 3c59x: fix possible null dereference in vortex_probe1()
net/sched: sch_qfq: Fix NULL deref when deactivating inactive aggregate in qfq_reset
wifi: mac80211: collect station statistics earlier when disconnect
wifi: mac80211: restore non-chanctx injection behaviour
wifi: mac80211_hwsim: disable BHs for hwsim_radio_lock
wifi: mac80211: don't iterate not running interfaces
wifi: mac80211_hwsim: fix typo in frequency notification
wifi: avoid kernel-infoleak from struct iw_point
net: airoha: Fix schedule while atomic in airoha_ppe_deinit()
selftests: netdevsim: add carrier state consistency test
net: netdevsim: fix inconsistent carrier state after link/unlink
selftests: drv-net: Bring back tool() to driver __init__s
net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy
...
Jakub Kicinski [Thu, 8 Jan 2026 16:54:54 +0000 (08:54 -0800)]
Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-01-06 (idpf)
This series contains updates to idpf driver only.
Emil fixes issues related to resets; among them timeouts, NULL pointer
dereferences, and memory leaks.
Sreedevi resolves issues around RSS; mainly involving operations when
the interface is down and resets. She also addresses some incomplete
cleanups for ntuple filters and interrupts.
Erik fixes incomplete output of ntuple filters.
Josh sets restriction of Rx buffer size to follow hardware restrictions.
Larysa adds check to prevent NULL pointer dereference when RDMA is not
enabled.
* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
idpf: fix aux device unplugging when rdma is not supported by vport
idpf: cap maximum Rx buffer size
idpf: Fix error handling in idpf_vport_open()
idpf: Fix RSS LUT NULL ptr issue after soft reset
idpf: Fix RSS LUT configuration on down interfaces
idpf: Fix RSS LUT NULL pointer crash on early ethtool operations
idpf: fix issue with ethtool -n command display
idpf: fix memory leak of flow steer list on rmmod
idpf: fix error handling in the init_task on load
idpf: fix memory leak in idpf_vc_core_deinit()
idpf: fix memory leak in idpf_vport_rel()
idpf: detach and close netdevs while handling a reset
idpf: keep the netdev when a reset fails
====================
Wei Fang [Wed, 7 Jan 2026 09:12:04 +0000 (17:12 +0800)]
net: enetc: fix build warning when PAGE_SIZE is greater than 128K
The max buffer size of ENETC RX BD is 0xFFFF bytes, so if the PAGE_SIZE
is greater than 128K, ENETC_RXB_DMA_SIZE and ENETC_RXB_DMA_SIZE_XDP will
be greater than 0xFFFF, thus causing a build warning.
This will not cause any practical issues because ENETC is currently only
used on the ARM64 platform, and the max PAGE_SIZE is 64K. So this patch
is only for fixing the build warning that occurs when compiling ENETC
drivers for other platforms.
Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202601050637.kHEKKOG7-lkp@intel.com/ Fixes: e59bc32df2e9 ("net: enetc: correct the value of ENETC_RXB_TRUESIZE") Signed-off-by: Wei Fang <wei.fang@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260107091204.1980222-1-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Thu, 8 Jan 2026 16:49:24 +0000 (08:49 -0800)]
Merge tag 'wireless-2026-01-08' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Couple of fixes:
- mac80211:
- long-standing injection bug due to chanctx rework
- more recent interface iteration issue
- collect statistics before removing stations
- hwsim:
- fix NAN frequency typo (potential NULL ptr deref)
- fix locking of radio lock (needs softirqs disabled)
- wext:
- ancient issue with compat and events copying some
uninitialized stack data to userspace
* tag 'wireless-2026-01-08' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: mac80211: collect station statistics earlier when disconnect
wifi: mac80211: restore non-chanctx injection behaviour
wifi: mac80211_hwsim: disable BHs for hwsim_radio_lock
wifi: mac80211: don't iterate not running interfaces
wifi: mac80211_hwsim: fix typo in frequency notification
wifi: avoid kernel-infoleak from struct iw_point
====================
projects / thirdparty / kernel / linux.git / log
