linux.git/drivers/net/netdevsim/netdev.c, branch v7.1-rc2

netdevsim: convert to ndo_set_rx_mode_async

2026-04-21T10:50:25+00:00

Convert netdevsim from ndo_set_rx_mode to ndo_set_rx_mode_async.
The callback is a no-op stub so just update the signature and
ops struct wiring.

Reviewed-by: Breno Leitao 
Signed-off-by: Stanislav Fomichev 
Link: https://patch.msgid.link/20260416185712.2155425-11-sdf@fomichev.me
Signed-off-by: Paolo Abeni

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-04-14T19:04:00+00:00

Merge in late fixes in preparation for the net-next PR.

Conflicts:

include/net/sch_generic.h
  a6bd339dbb351 ("net_sched: fix skb memory leak in deferred qdisc drops")
  ff2998f29f390 ("net: sched: introduce qdisc-specific drop reason tracing")
https://lore.kernel.org/adz0iX85FHMz0HdO@sirena.org.uk

drivers/net/ethernet/airoha/airoha_eth.c
  1acdfbdb516b ("net: airoha: Fix VIP configuration for AN7583 SoC")
  bf3471e6e6c0 ("net: airoha: Make flow control source port mapping dependent on nbq parameter")

Adjacent changes:

drivers/net/ethernet/airoha/airoha_ppe.c
  f44218cd5e6a ("net: airoha: Reset PPE cpu port configuration in airoha_ppe_hw_init()")
  7da62262ec96 ("inet: add ip_local_port_step_width sysctl to improve port usage distribution")

Signed-off-by: Jakub Kicinski

nsim: Add support for VLAN filters

2026-04-10T02:38:42+00:00

Add support for storing the list of VLANs in nsim devices, together with
ops for adding/removing them and a debug file to show them.

This will be used in upcoming tests.

Signed-off-by: Cosmin Ratiu 
Reviewed-by: Sabrina Dubroca 
Link: https://patch.msgid.link/20260408115240.1636047-3-cratiu@nvidia.com
Signed-off-by: Jakub Kicinski

netdevsim: move TC offload code to a dedicated file

2026-03-21T03:13:14+00:00

This commit has no functional change.

Reviewed-by: Jamal Hadi Salim 
Signed-off-by: Davide Caratti 
Link: https://patch.msgid.link/b7881fd53f8a5d8eff4eae8121576c3cd60c2ed7.1773945414.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski

netdevsim: drop PSP ext ref on forward failure

2026-03-19T00:13:34+00:00

nsim_do_psp() takes an extra reference to the PSP skb extension so the
extension survives __dev_forward_skb(). That forward path scrubs the skb
and drops attached skb extensions before nsim_psp_handle_ext() can
reattach the PSP metadata.

If __dev_forward_skb() fails in nsim_forward_skb(), the function returns
before nsim_psp_handle_ext() can attach that extension to the skb, leaving
the extra reference leaked.

Drop the saved PSP extension reference before returning from the
forward-failure path. Guard the put because plain or non-decapsulated
traffic can also fail forwarding without ever taking the extra PSP
reference.

Fixes: f857478d6206 ("netdevsim: a basic test PSP implementation")
Signed-off-by: Wesley Atwell 
Reviewed-by: Daniel Zahka 
Link: https://patch.msgid.link/20260317061431.1482716-1-atwellwea@gmail.com
Signed-off-by: Jakub Kicinski

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook

net: add bare bone queue configs

2026-01-14T02:13:36+00:00

We'll need to pass extra parameters when allocating a queue for memory
providers. Define a new structure for queue configurations, and pass it
to qapi callbacks. It's empty for now, actual parameters will be added
in following patches.

Configurations should persist across resets, and for that they're
default-initialised on device registration and stored in struct
netdev_rx_queue. We also add a new qapi callback for defaulting a given
config. It must be implemented if a driver wants to use queue configs
and is optional otherwise.

Suggested-by: Jakub Kicinski 
Signed-off-by: Pavel Begunkov

netdevsim: add loopback support

2025-11-21T02:19:30+00:00

Support device loopback. Apparently this mode has been historically
supported by the toeplitz test and I don't have any HW which lets
me test the conversion..

Reviewed-by: Petr Machata 
Reviewed-by: Willem de Bruijn 
Link: https://patch.msgid.link/20251120021024.2944527-12-kuba@kernel.org
Signed-off-by: Jakub Kicinski

netdevsim: pass packets thru GRO on Rx

2025-11-21T02:19:30+00:00

To replace veth in software GRO testing with netdevsim we need
GRO support in netdevsim. Luckily we already have NAPI support
so this change is trivial (compared to veth).

Reviewed-by: Petr Machata 
Reviewed-by: Willem de Bruijn 
Link: https://patch.msgid.link/20251120021024.2944527-9-kuba@kernel.org
Signed-off-by: Jakub Kicinski

netdevsim: set the carrier when the device goes up

2025-10-16T00:43:17+00:00

Bringing a linked netdevsim device down and then up causes communication
failure because both interfaces lack carrier. Basically a ifdown/ifup on
the interface make the link broken.

Commit 3762ec05a9fbda ("netdevsim: add NAPI support") added supported
for NAPI, calling netif_carrier_off() in nsim_stop(). This patch
re-enables the carrier symmetrically on nsim_open(), in case the device
is linked and the peer is up.

Signed-off-by: Breno Leitao 
Fixes: 3762ec05a9fbda ("netdevsim: add NAPI support")
Reviewed-by: Andrew Lunn 
Link: https://patch.msgid.link/20251014-netdevsim_fix-v2-1-53b40590dae1@debian.org
Signed-off-by: Jakub Kicinski