Add a simple test for USO. Tests both ipv4 and ipv6 with several full
segments and a partial segment.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-11-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Wire in the SW USO path added in preceding commits when hardware USO is
not possible.
When a GSO skb with SKB_GSO_UDP_L4 arrives and the NIC lacks HW USO
capability, redirect to bnxt_sw_udp_gso_xmit() which handles software
segmentation into individual UDP frames submitted directly to the TX
ring.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-10-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Update __bnxt_tx_int and bnxt_free_one_tx_ring_skbs to handle SW GSO
segments:
- MID segments: adjust tx_pkts/tx_bytes accounting and skip skb free
(the skb is shared across all segments and freed only once)
- LAST segments: call tso_dma_map_complete() to tear down the IOVA
mapping if one was used. On the fallback path, payload DMA unmapping
is handled by the existing per-BD dma_unmap_len walk.
Both MID and LAST completions advance tx_inline_cons to release the
segment's inline header slot back to the ring.
is_sw_gso is initialized to zero, so the new code paths are not run.
Add logic for feature advertisement and guardrails for ring sizing.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-9-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Implement bnxt_sw_udp_gso_xmit() using the core tso_dma_map API and
the pre-allocated TX inline buffer for per-segment headers.
The xmit path:
1. Calls tso_start() to initialize TSO state
2. Stack-allocates a tso_dma_map and calls tso_dma_map_init() to
DMA-map the linear payload and all frags upfront.
3. For each segment:
- Copies and patches headers via tso_build_hdr() into the
pre-allocated tx_inline_buf (DMA-synced per segment)
- Counts payload BDs via tso_dma_map_count()
- Emits long BD (header) + ext BD + payload BDs
- Payload BDs use tso_dma_map_next() which yields (dma_addr,
chunk_len, mapping_len) tuples.
Header BDs set dma_unmap_len=0 since the inline buffer is pre-allocated
and unmapped only at ring teardown.
Completion state is updated by calling tso_dma_map_completion_save() for
the last segment.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-8-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add bnxt_gso.c and bnxt_gso.h with a stub bnxt_sw_udp_gso_xmit()
function, SW USO constants (BNXT_SW_USO_MAX_SEGS,
BNXT_SW_USO_MAX_DESCS), and the is_sw_gso field in bnxt_sw_tx_bd
with BNXT_SW_GSO_MID/LAST markers.
The full SW USO implementation will be added in a future commit.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-7-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add per-ring pre-allocated inline buffer fields (tx_inline_buf,
tx_inline_dma, tx_inline_size) to bnxt_tx_ring_info and helpers to
allocate and free them. A producer and consumer (tx_inline_prod,
tx_inline_cons) are added to track which slot(s) of the inline buffer
are in-use.
The inline buffer will be used by the SW USO path for pre-allocated,
pre-DMA-mapped per-segment header copies. In the future, this
could be extended to support TX copybreak.
Allocation helper is marked __maybe_unused in this commit because it
will be wired in later.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-6-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Store the DMA mapping length in each TX buffer descriptor via
dma_unmap_len_set at submit time, and use dma_unmap_len at completion
time.
This is a no-op for normal packets but prepares for software USO,
where header BDs set dma_unmap_len to 0 because the header buffer
is unmapped collectively rather than per-segment.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-5-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Factor out some code to setup tx_bd_exts into a helper function. This
helper will be used by SW USO implementation in the following commits.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-4-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Export bnxt_xmit_get_cfa_action so that it can be used in future commits
which add software USO support to bnxt.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-3-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add struct tso_dma_map to tso.h for tracking DMA addresses of mapped
GSO payload data and tso_dma_map_completion_state.
The tso_dma_map combines DMA mapping storage with iterator state, allowing
drivers to walk pre-mapped DMA regions linearly. Includes fields for
the DMA IOVA path (iova_state, iova_offset, total_len) and a fallback
per-region path (linear_dma, frags[], frag_idx, offset).
The tso_dma_map_completion_state makes the IOVA completion state opaque
for drivers. Drivers are expected to allocate this and use the added
helpers to update the completion state.
Adds skb_frag_phys() to skbuff.h, returning the physical address
of a paged fragment's data, which is used by the tso_dma_map helpers
introduced in this commit described below.
The added TSO DMA map helpers are:
tso_dma_map_init(): DMA-maps the linear payload region and all frags
upfront. Prefers the DMA IOVA API for a single contiguous mapping with
one IOTLB sync; falls back to per-region dma_map_phys() otherwise.
Returns 0 on success, cleans up partial mappings on failure.
tso_dma_map_cleanup(): Handles both IOVA and fallback teardown paths.
tso_dma_map_count(): counts how many descriptors the next N bytes of
payload will need. Returns 1 if IOVA is used since the mapping is
contiguous.
tso_dma_map_next(): yields the next (dma_addr, chunk_len) pair.
On the IOVA path, each segment is a single contiguous chunk. On the
fallback path, indicates when a chunk starts a new DMA mapping so the
driver can set dma_unmap_len on that descriptor for completion-time
unmapping.
tso_dma_map_completion_save(): updates the completion state. Drivers
will call this at xmit time.
tso_dma_map_complete(): tears down the mapping at completion time and
returns true if the IOVA path was used. If it was not used, this is a
no-op and returns false.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260408230607.2019402-2-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Fix incomplete activation of multiple inactive works when unplugging a
pool_workqueue, where the pending_pwqs list wasn't being updated for
subsequent works.
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Merge tag 'wq-for-7.0-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fix from Tejun Heo:
"This is a fix for a stall which triggers on ordered workqueues when
there are multiple inactive work items during workqueue property
changes through sysfs, which doesn't happen that frequently.
While really late, the fix is very low risk as it just repeats an
operation which is already being performed:
- Fix incomplete activation of multiple inactive works when
unplugging a pool_workqueue, where the pending_pwqs list
wasn't being updated for subsequent works"
* tag 'wq-for-7.0-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Add pool_workqueue to pending_pwqs list when unplugging multiple inactive works
Alpha's pgprot_noncached, pgprot_writecombine, and pgprot_device are
all identity macros, so the generic pgprot_modify() produces
tautological self-comparisons that GCC warns about:
include/linux/pgtable.h:1701:25: warning: self-comparison always
evaluates to true [-Wtautological-compare]
Since all caching attributes are no-ops on Alpha, define
pgprot_modify() to simply return newprot.
Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Magnus Lindholm <linmag7@gmail.com>
Link: https://lore.kernel.org/r/20260403150128.488513-1-mattst88@gmail.com
Signed-off-by: Magnus Lindholm <linmag7@gmail.com>
Add SECCOMP and SECCOMP_FILTER support to the Alpha architecture and fix
syscall entry and ptrace issues uncovered by the seccomp-bpf selftests.
The syscall entry path is reworked to consistently track syscall state
using r0, r1 and r2:
- r1 holds the active syscall number
- r2 preserves the original syscall number for restart
- r0 carries the return value, with r19 (a3) indicating success/error
This allows syscall restarts to be permitted only for valid ERESTART*
return codes and prevents kernel-internal restart values from leaking to
userspace. The syscall tracing error marker is corrected to use the saved
syscall number slot, matching the Alpha ABI.
Additionally, implement minimal PTRACE_GETREGSET and PTRACE_SETREGSET
support for NT_PRSTATUS, exporting struct pt_regs directly. This fixes
ptrace-based seccomp tests that previously failed with -EIO.
With these changes, seccomp-bpf and ptrace syscall tests pass reliably on
Alpha.
Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Magnus Lindholm <linmag7@gmail.com>
Link: https://lore.kernel.org/r/20260409171439.8759-2-linmag7@gmail.com
Signed-off-by: Magnus Lindholm <linmag7@gmail.com>
- Invert the inverted fastpath decision in check_tick_dependency(), which
prevents NOHZ full to stop the tick. That's a regression introduced in
the 7.0 merge window.
- Prevent a unpriviledged DoS in the clockevents code, where user space
can starve the timer interrupt by arming a timerfd or posix interval
timer in a tight loop with an absolute expiry time in the past. The
fix turned out to be incomplete and was was amended yesterday to make
it work on some 20 years old AMD machines as well. All issues with it
have been confirmed to be resolved by various reporters.
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Merge tag 'timers-urgent-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two fixes for the time/timers subsystem:
- Invert the inverted fastpath decision in check_tick_dependency(),
which prevents NOHZ full to stop the tick. That's a regression
introduced in the 7.0 merge window.
- Prevent a unpriviledged DoS in the clockevents code, where user
space can starve the timer interrupt by arming a timerfd or posix
interval timer in a tight loop with an absolute expiry time in the
past. The fix turned out to be incomplete and was was amended
yesterday to make it work on some 20 years old AMD machines as
well. All issues with it have been confirmed to be resolved by
various reporters"
* tag 'timers-urgent-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clockevents: Prevent timer interrupt starvation
tick/nohz: Fix inverted return value in check_tick_dependency() fast path
`virtio_transport_send_pkt_info` gets all the transport information
from the parameter `t_ops`. There is no need to call
`virtio_transport_get_ops()`.
Remove it.
Acked-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Luigi Leonardi <leonardi@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20260408-remove_parameter-v2-1-e00f31cf7a17@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since commit 0f42e3f4fe ("net: skb: fix cross-cache free of
KFENCE-allocated skb head"), skb_kfree_head() always calls kfree()
and no longer uses end_offset to distinguish between skb_small_head_cache
and generic kmalloc caches.
Clean up the leftovers:
- Remove the unused end_offset parameter from skb_kfree_head() and
update all callers.
- Remove the SKB_SMALL_HEAD_HEADROOM guard in __skb_unclone_keeptruesize()
which was protecting the old skb_kfree_head() logic.
- Update the SKB_SMALL_HEAD_CACHE_SIZE comment to reflect that the
non-power-of-2 sizing is no longer used for free-path disambiguation.
No functional change.
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260410034736.297900-1-jiayuan.chen@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When userspace reads a single mode netkit device via RTM_GETLINK,
it receives IFLA_NETKIT_SCRUB=NETKIT_SCRUB_DEFAULT attribute from
netkit_fill_info(). If that attribute is echoed back to recreate
the device, the seen_scrub presence check in netkit_new_link()
causes creation to fail with -EOPNOTSUPP. Since it has no meaning
for single devices at this point, just don't dump it.
Fixes: 4810389605 ("netkit: Add single device mode for netkit")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20260410072334.548232-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The variable chip_rev stores the value read from the FPGA_REV
register and represents the FPGA revision. Rename it to fpga_rev
to better reflect its meaning.
No functional change intended.
Signed-off-by: Thangaraj Samynathan <thangaraj.s@microchip.com>
Link: https://patch.msgid.link/20260410085710.9246-1-thangaraj.s@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Like e65d8b6f30 ("selftests: drv-net: adjust to socat changes") we
need to add shut-none for this test too.
The extra 0-packet can trigger a second (unexpected) reply from the server.
Fixes: 7e37e0eacd ("selftests: netfilter: nft_tproxy.sh: add tcp tests")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netdev/20260408152432.24b8ad0d@kernel.org/
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://patch.msgid.link/20260409224506.27072-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'nf-next-26-04-10' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Florian Westphal says:
====================
netfilter: updates for net-next
1-3) IPVS updates from Julian Anastasov to enhance visibility into
IPVS internal state by exposing hash size, load factor etc and
allows userspace to tune the load factor used for resizing hash
tables.
4) reject empty/not nul terminated device names from xt_physdev.
This isn't a bug fix; existing code doesn't require a c-string.
But clean this up anyway because conceptually the interface name
definitely should be a c-string.
5) Switch nfnetlink to skb_mac_header helpers that didn't exist back
when this code was written. This gives us additional debug checks
but is not intended to change functionality.
6) Let the xt ttl/hoplimit match reject unknown operator modes.
This is a cleanup, the evaluation function simply returns false when
the mode is out of range. From Marino Dzalto.
7) xt_socket match should enable defrag after all other checks. This
bug is harmless, historically defrag could not be disabled either
except by rmmod.
8) remove UDP-Lite conntrack support, from Fernando Fernandez Mancera.
9) Avoid a couple -Wflex-array-member-not-at-end warnings in the old
xtables 32bit compat code, from Gustavo A. R. Silva.
10) nftables fwd expression should drop packets when their ttl/hl has
expired. This is a bug fix deferred, its not deemed important
enough for -rc8.
11) Add additional checks before assuming the mac header is an ethernet
header, from Zhengchuan Liang.
* tag 'nf-next-26-04-10' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: require Ethernet MAC header before using eth_hdr()
netfilter: nft_fwd_netdev: check ttl/hl before forwarding
netfilter: x_tables: Avoid a couple -Wflex-array-member-not-at-end warnings
netfilter: conntrack: remove UDP-Lite conntrack support
netfilter: xt_socket: enable defrag after all other checks
netfilter: xt_HL: add pr_fmt and checkentry validation
netfilter: nfnetlink: prefer skb_mac_header helpers
netfilter: x_physdev: reject empty or not-nul terminated device names
ipvs: add conn_lfactor and svc_lfactor sysctl vars
ipvs: add ip_vs_status info
ipvs: show the current conn_tab size to users
====================
Link: https://patch.msgid.link/20260410112352.23599-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When looking up a flow table in act_ct in tcf_ct_flow_table_get(),
rhashtable_lookup_fast() internally opens and closes an RCU read critical
section before returning ct_ft.
The tcf_ct_flow_table_cleanup_work() can complete before refcount_inc_not_zero()
is invoked on the returned ct_ft resulting in a UAF on the already freed ct_ft
object. This vulnerability can lead to privilege escalation.
Analysis from zdi-disclosures@trendmicro.com:
When initializing act_ct, tcf_ct_init() is called, which internally triggers
tcf_ct_flow_table_get().
static int tcf_ct_flow_table_get(struct net *net, struct tcf_ct_params *params)
{
struct zones_ht_key key = { .net = net, .zone = params->zone };
struct tcf_ct_flow_table *ct_ft;
int err = -ENOMEM;
mutex_lock(&zones_mutex);
ct_ft = rhashtable_lookup_fast(&zones_ht, &key, zones_params); // [1]
if (ct_ft && refcount_inc_not_zero(&ct_ft->ref)) // [2]
goto out_unlock;
...
}
static __always_inline void *rhashtable_lookup_fast(
struct rhashtable *ht, const void *key,
const struct rhashtable_params params)
{
void *obj;
rcu_read_lock();
obj = rhashtable_lookup(ht, key, params);
rcu_read_unlock();
return obj;
}
At [1], rhashtable_lookup_fast() looks up and returns the corresponding ct_ft
from zones_ht . The lookup is performed within an RCU read critical section
through rcu_read_lock() / rcu_read_unlock(), which prevents the object from
being freed. However, at the point of function return, rcu_read_unlock() has
already been called, and there is nothing preventing ct_ft from being freed
before reaching refcount_inc_not_zero(&ct_ft->ref) at [2]. This interval becomes
the race window, during which ct_ft can be freed.
Free Process:
tcf_ct_flow_table_put() is executed through the path tcf_ct_cleanup() call_rcu()
tcf_ct_params_free_rcu() tcf_ct_params_free() tcf_ct_flow_table_put().
static void tcf_ct_flow_table_put(struct tcf_ct_flow_table *ct_ft)
{
if (refcount_dec_and_test(&ct_ft->ref)) {
rhashtable_remove_fast(&zones_ht, &ct_ft->node, zones_params);
INIT_RCU_WORK(&ct_ft->rwork, tcf_ct_flow_table_cleanup_work); // [3]
queue_rcu_work(act_ct_wq, &ct_ft->rwork);
}
}
At [3], tcf_ct_flow_table_cleanup_work() is scheduled as RCU work
static void tcf_ct_flow_table_cleanup_work(struct work_struct *work)
{
struct tcf_ct_flow_table *ct_ft;
struct flow_block *block;
ct_ft = container_of(to_rcu_work(work), struct tcf_ct_flow_table,
rwork);
nf_flow_table_free(&ct_ft->nf_ft);
block = &ct_ft->nf_ft.flow_block;
down_write(&ct_ft->nf_ft.flow_block_lock);
WARN_ON(!list_empty(&block->cb_list));
up_write(&ct_ft->nf_ft.flow_block_lock);
kfree(ct_ft); // [4]
module_put(THIS_MODULE);
}
tcf_ct_flow_table_cleanup_work() frees ct_ft at [4]. When this function executes
between [1] and [2], UAF occurs.
This race condition has a very short race window, making it generally
difficult to trigger. Therefore, to trigger the vulnerability an msleep(100) was
inserted after[1]
Fixes: 138470a9b2 ("net/sched: act_ct: fix lockdep splat in tcf_ct_flow_table_get")
Reported-by: zdi-disclosures@trendmicro.com
Tested-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20260410111627.46611-1-jhs@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Convert the rockchip,rk3399-gru-sound.txt DT binding to DT Schema
format.
Update rockchip,cpu from a single I2S controller phandle to a
phandle-array. Add an optional second entry for the SPDIF controller,
as seen in rk3399-gru.dtsi, required by boards with DisplayPort audio.
Signed-off-by: Anushka Badhe <anushkabadhe@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260410055532.60868-1-anushkabadhe@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Merge tag 'linux-can-fixes-for-7.0-20260409' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2026-04-09
Johan Hovold's patch fixes the a devres lifetime in the ucan driver.
The last patch is by Samuel Page and fixes a use-after-free in
raw_rcv() in the CAN_RAW protocol.
* tag 'linux-can-fixes-for-7.0-20260409' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: raw: fix ro->uniq use-after-free in raw_rcv()
can: ucan: fix devres lifetime
====================
Link: https://patch.msgid.link/20260409165942.588421-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- crypto: move Michael MIC code into wireless (only)
- mac80211:
- multi-link 4-addr support
- NAN data support (but no drivers yet)
- ath10k: DT quirk to make it work on some devices
- ath12k: IPQ5424 support
- rtw89: USB improvements for performance
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Merge tag 'wireless-next-2026-04-10' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
Final updates, notably:
- crypto: move Michael MIC code into wireless (only)
- mac80211:
- multi-link 4-addr support
- NAN data support (but no drivers yet)
- ath10k: DT quirk to make it work on some devices
- ath12k: IPQ5424 support
- rtw89: USB improvements for performance
* tag 'wireless-next-2026-04-10' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (124 commits)
wifi: cfg80211: Explicitly include <linux/export.h> in michael-mic.c
wifi: ath10k: Add device-tree quirk to skip host cap QMI requests
dt-bindings: wireless: ath10k: Add quirk to skip host cap QMI requests
crypto: Remove michael_mic from crypto_shash API
wifi: ipw2x00: Use michael_mic() from cfg80211
wifi: ath12k: Use michael_mic() from cfg80211
wifi: ath11k: Use michael_mic() from cfg80211
wifi: mac80211, cfg80211: Export michael_mic() and move it to cfg80211
wifi: ipw2x00: Rename michael_mic() to libipw_michael_mic()
wifi: libertas_tf: refactor endpoint lookup
wifi: libertas: refactor endpoint lookup
wifi: at76c50x: refactor endpoint lookup
wifi: ath12k: Enable IPQ5424 WiFi device support
wifi: ath12k: Add CE remap hardware parameters for IPQ5424
wifi: ath12k: add ath12k_hw_regs for IPQ5424
wifi: ath12k: add ath12k_hw_version_map entry for IPQ5424
wifi: ath12k: Add ath12k_hw_params for IPQ5424
dt-bindings: net: wireless: add ath12k wifi device IPQ5424
wifi: ath10k: fix station lookup failure during disconnect
wifi: ath12k: Create symlink for each radio in a wiphy
...
====================
Link: https://patch.msgid.link/20260410064703.735099-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Small improvement in SYN processing, to directly call
tcp_v6_init_seq_and_ts_off() or tcp_v4_init_seq_and_ts_off().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260410174950.745670-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Rename the leftover ifq_idx parameter naming to rxq_idx to be
consistent with the rest of the file and the header declaration.
Back then this was taken out of the queue leasing series given
the cleanup is independent. No functional change.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/netdev/20260131160237.07789674@kernel.org
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20260410130602.552600-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When developing new test cases and reproducing failures in
existing ones we currently have to run the entire test which
can take minutes to finish.
Add command line options for test selection, modeled after
kselftest_harness.h:
-l list tests (filtered, if filters were specified)
-t name include test
-T name exclude test
Since we don't have as clean separation into fixture / variant /
test as kselftest_harness this is not really a 1 to 1 match.
We have to lean on glob patterns instead.
Like in kselftest_harness filters are evaluated in order, first
match wins. If only exclusions are specified everything else is
included and vice versa.
Glob patterns (*, ?, [) are supported in addition to exact
matching.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Tested-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260410013921.1710295-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
dev_put() releases a reference which didn't have a tracker.
References without a tracker are accounted in the tracking
code as "no_tracker". We can't free the tracker and then
call dev_put(). The references themselves will be fine
but the tracking code will think it's a double-release:
refcount_t: decrement hit 0; leaking memory.
IOW commit under fixes confused dev_put() (release never tracked
reference) with __dev_put() (just release the reference, skipping
the reference tracking infra).
Since __netdev_put_lock() uses dev_put() we can't feed a previously
tracked netdev ref into it. Let's flip things around.
netdev_put(dev, NULL) is the same as dev_put(dev) so make
netdev_put_lock() the real function and have __netdev_put_lock()
feed it a NULL tracker for all the cases that were untracked.
Fixes: d04686d9bc ("net: Implement netdev_nl_queue_create_doit")
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://patch.msgid.link/20260410153600.1984522-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Part of a stack canary removal from tcp_v{4,6}_rcv().
Return a drop_reason instead of a boolean, so that we no longer
have to pass the address of a local variable.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-37 (-37)
Function old new delta
tcp_v6_rcv 3133 3129 -4
tcp_v4_rcv 3206 3202 -4
tcp_add_backlog 1281 1252 -29
Total: Before=25567186, After=25567149, chg -0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260409101147.1642967-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Eric Dumazet says:
====================
ipvlan: multicast delivery changes
As we did recently for macvlan, this series adds some relief
when ipvlan is under multicast storms.
====================
Link: https://patch.msgid.link/20260409085238.1122947-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Under high stress, we spend a lot of time cloning skbs,
then acquiring a spinlock, then freeing the clone because
the queue is full.
Add a shortcut to avoid these costs under pressure, as we did
in macvlan with commit 0d5dc1d7aa ("macvlan: avoid spinlock
contention in macvlan_broadcast_enqueue()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260409085238.1122947-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reduce indentation level, and add a likely() clause
as we expect to process more unicast packets than multicast ones.
No functional change, this eases the following patch review.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260409085238.1122947-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Network devices can have the same name within different network namespaces.
To help distinguish these devices, add the net_cookie value which can be
used to identify the netns.
Signed-off-by: Chris J Arges <carges@cloudflare.com>
Link: https://patch.msgid.link/20260408191056.1036330-1-carges@cloudflare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Luiz Angelo Daros de Luca says:
====================
net: dsa: tag_rtl8_4: fixes doc and set keep
This small series addresses two points in the rtl8_4 tagger used by the
realtel rtl8365mb driver.
The first patch updates the documentation of the tag format while the
second patch sets the KEEP flag bit, ensuring that the switch
respects the frame's VLAN format as provided by the kernel.
These patches were previously part of a larger series but are being
submitted independently as they are self-contained and already
received review.
Link: https://patch.msgid.link/CAD++jLmX31KfhGXA6SMAPXb14dHSC1t4JQZ=PQvjh-3hUcnzJA@mail.gmail.com
====================
Link: https://patch.msgid.link/20260408-realtek_fixes-v1-0-915ff1404d56@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
KEEP=1 is needed because we should respect the format of the packet as
the kernel sends it to us. Unless tx forward offloading is used, the
kernel is giving us the packet exactly as it should leave the specified
port on the wire. Until now this was not needed because the ports were
always functioning in a standalone mode in a VLAN-unaware way, so the
switch would not tag or untag frames anyway. But arguably it should have
been KEEP=1 all along.
Co-developed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260408-realtek_fixes-v1-2-915ff1404d56@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Like pointed out by Sashiko [1], since commit ed76f5edcc ("net: sched:
protect filter_chain list with filter_chain_lock mutex") TC filters are
added to a shared block and published to datapath before their ->change()
function is called. This is a problem for cls_fw: an invalid filter
created with the "old" method can still classify some packets before it
is destroyed by the validation logic added by Xiang.
Therefore, insisting with repeated runs of the following script:
# ip link add dev crash0 type dummy
# ip link set dev crash0 up
# mausezahn crash0 -c 100000 -P 10 \
> -A 4.3.2.1 -B 1.2.3.4 -t udp "dp=1234" -q &
# sleep 1
# tc qdisc add dev crash0 egress_block 1 clsact
# tc filter add block 1 protocol ip prio 1 matchall \
> action skbedit mark 65536 continue
# tc filter add block 1 protocol ip prio 2 fw
# ip link del dev crash0
can still make fw_classify() hit the WARN_ON() in [2]:
WARNING: ./include/net/pkt_cls.h:88 at fw_classify+0x244/0x250 [cls_fw], CPU#18: mausezahn/1399
Modules linked in: cls_fw(E) act_skbedit(E)
CPU: 18 UID: 0 PID: 1399 Comm: mausezahn Tainted: G E 7.0.0-rc6-virtme #17 PREEMPT(full)
Tainted: [E]=UNSIGNED_MODULE
Hardware name: Red Hat KVM, BIOS 1.16.3-2.el9 04/01/2014
RIP: 0010:fw_classify+0x244/0x250 [cls_fw]
Code: 5c 49 c7 45 00 00 00 00 00 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 5b b8 ff ff ff ff 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 <0f> 0b 90 eb a0 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffd1b7026bf8a8 EFLAGS: 00010202
RAX: ffff8c5ac9c60800 RBX: ffff8c5ac99322c0 RCX: 0000000000000004
RDX: 0000000000000001 RSI: ffff8c5b74d7a000 RDI: ffff8c5ac8284f40
RBP: ffffd1b7026bf8d0 R08: 0000000000000000 R09: ffffd1b7026bf9b0
R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000010000
R13: ffffd1b7026bf930 R14: ffff8c5ac8284f40 R15: 0000000000000000
FS: 00007fca40c37740(0000) GS:ffff8c5b74d7a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fca40e822a0 CR3: 0000000005ca0001 CR4: 0000000000172ef0
Call Trace:
<TASK>
tcf_classify+0x17d/0x5c0
tc_run+0x9d/0x150
__dev_queue_xmit+0x2ab/0x14d0
ip_finish_output2+0x340/0x8f0
ip_output+0xa4/0x250
raw_sendmsg+0x147d/0x14b0
__sys_sendto+0x1cc/0x1f0
__x64_sys_sendto+0x24/0x30
do_syscall_64+0x126/0xf80
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fca40e822ba
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
RSP: 002b:00007ffc248a42c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000055ef233289d0 RCX: 00007fca40e822ba
RDX: 000000000000001e RSI: 000055ef23328c30 RDI: 0000000000000003
RBP: 000055ef233289d0 R08: 00007ffc248a42d0 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000001e
R13: 00000000000186a0 R14: 0000000000000000 R15: 00007fca41043000
</TASK>
irq event stamp: 1045778
hardirqs last enabled at (1045784): [<ffffffff864ec042>] __up_console_sem+0x52/0x60
hardirqs last disabled at (1045789): [<ffffffff864ec027>] __up_console_sem+0x37/0x60
softirqs last enabled at (1045426): [<ffffffff874d48c7>] __alloc_skb+0x207/0x260
softirqs last disabled at (1045434): [<ffffffff874fe8f8>] __dev_queue_xmit+0x78/0x14d0
Then, because of the value in the packet's mark, dereference on 'q->handle'
with NULL 'q' occurs:
BUG: kernel NULL pointer dereference, address: 0000000000000038
[...]
RIP: 0010:fw_classify+0x1fe/0x250 [cls_fw]
[...]
Skip "old-style" classification on shared blocks, so that the NULL
dereference is fixed and WARN_ON() is not hit anymore in the short
lifetime of invalid cls_fw "old-style" filters.
[1] https://sashiko.dev/#/patchset/20260331050217.504278-1-xmei5%40asu.edu
[2] https://elixir.bootlin.com/linux/v7.0-rc6/source/include/net/pkt_cls.h#L86
Fixes: faeea8bbf6 ("net/sched: cls_fw: fix NULL pointer dereference on shared blocks")
Fixes: ed76f5edcc ("net: sched: protect filter_chain list with filter_chain_lock mutex")
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Link: https://patch.msgid.link/e39cbd3103a337f1e515d186fe697b4459d24757.1775661704.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Save the current mode of flow control, and enhance the statistics of
pause frames.
The received pause frames are divided into XON and XOFF to be counted.
And due to the hardware defect of SP devices, XON packets cannot be
trasmitted correctly, so Tx XON pause is disabled by default for those
devices.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20260407025616.33652-10-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The WX_PX_MPRC registers are not clear-on-read hardware counters. The
previous implementation directly read and accumulated these 32-bit values
into a 64-bit software counter. Now implement a rd32_wrap() helper
function to calculate the delta counter to correct the statistic.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20260407025616.33652-9-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Hardware statistics should be updated periodically in the watchdog to
prevent 32-bit registers from overflowing. This is also required for the
upcoming pause frame accounting logic, which relies on regular statistics
sampling.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20260407025616.33652-8-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When removing the device, timer_delete_sync(&wx->service_timer) is
called in .ndo_stop() after cancel_work_sync(&wx->service_task). This
may cause new work to be queued after device down.
Move unregister_netdev() before cancel_work_sync(), and use
timer_shutdown_sync() to prevent the timer from being re-armed.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20260407025616.33652-7-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since function ops wx->setup_tc() is set in txgbe and ngbe,
ethtool_ops.set_channels can be implemented in libwx to reduce
duplicated code.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20260407025616.33652-6-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Replace the busy-wait loop using test_and_set_bit(WX_STATE_RESETTING)
with a proper per-device mutex to serialize reset operations.
The reset flag is reserved for other code paths (like watchdog), which
need tocheck if a reset is in process.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20260407025616.33652-5-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
NGBE_NCSI_SUP and NGBE_NCSI_MASK are duplicate-defined, they can be
replaced by the macros defined in libwx. Just remove them.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260407025616.33652-4-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Remove duplicate-defined register macros, move the WOL implementation to
the library module. So that the WOL functions can be reused in txgbe
later.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20260407025616.33652-3-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
netdev->ethtool->wol_enabled is set in ethtool core code, so remove the
redundant setting in ngbe_set_wol().
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260407025616.33652-2-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The J722S CPSW3G is mostly identical to the AM64's, but additionally
supports SGMII. The AM64 compatible ti,am642-cpsw-nuss is used as a
fallback.
Signed-off-by: Nora Schiffer <nora.schiffer@ew.tq-group.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/191e9f7e3a6c14eabe891a98c5fb646766479c0a.1775558273.git.nora.schiffer@ew.tq-group.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
