linux-toradex.git/include/linux/netdevice.h, branch v6.7-rc1

net: Add MDB get device operation

2023-10-27T09:51:41+00:00

Add MDB net device operation that will be invoked by rtnetlink code in
response to received RTM_GETMDB messages. Subsequent patches will
implement the operation in the bridge and VXLAN drivers.

Signed-off-by: Ido Schimmel 
Acked-by: Nikolay Aleksandrov 
Signed-off-by: David S. Miller

net: introduce napi_is_scheduled helper

2023-10-19T13:41:31+00:00

We currently have napi_if_scheduled_mark_missed that can be used to
check if napi is scheduled but that does more thing than simply checking
it and return a bool. Some driver already implement custom function to
check if napi is scheduled.

Drop these custom function and introduce napi_is_scheduled that simply
check if napi is scheduled atomically.

Update any driver and code that implement a similar check and instead
use this new helper.

Signed-off-by: Christian Marangi 
Signed-off-by: Paolo Abeni

net: Handle bulk delete policy in bridge driver

2023-10-13T09:00:30+00:00

The merge commit 92716869375b ("Merge branch 'br-flush-filtering'")
added support for FDB flushing in bridge driver. The following patches
will extend VXLAN driver to support FDB flushing as well. The netlink
message for bulk delete is shared between the drivers. With the existing
implementation, there is no way to prevent user from flushing with
attributes that are not supported per driver. For example, when VNI will
be added, user will not get an error for flush FDB entries in bridge
with VNI, although this attribute is not relevant for bridge.

As preparation for support of FDB flush in VXLAN driver, move the policy
to be handled in bridge driver, later a new policy for VXLAN will be
added in VXLAN driver. Do not pass 'vid' as part of ndo_fdb_del_bulk(),
as this field is relevant only for bridge.

Signed-off-by: Amit Cohen 
Reviewed-by: Ido Schimmel 
Signed-off-by: David S. Miller

netdev: replace napi_reschedule with napi_schedule

2023-10-12T00:28:06+00:00

Now that napi_schedule return a bool, we can drop napi_reschedule that
does the same exact function. The function comes from a very old commit
bfe13f54f502 ("ibm_emac: Convert to use napi_struct independent of struct
net_device") and the purpose is actually deprecated in favour of
different logic.

Convert every user of napi_reschedule to napi_schedule.

Signed-off-by: Christian Marangi 
Acked-by: Jeff Johnson  # ath10k
Acked-by: Nick Child  # ibm
Acked-by: Marc Kleine-Budde  # for can/dev/rx-offload.c
Reviewed-by: Eric Dumazet 
Acked-by: Tariq Toukan 
Link: https://lore.kernel.org/r/20231009133754.9834-3-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski

netdev: make napi_schedule return bool on NAPI successful schedule

2023-10-12T00:28:05+00:00

Change napi_schedule to return a bool on NAPI successful schedule.
This might be useful for some driver to do additional steps after a
NAPI has been scheduled.

Suggested-by: Eric Dumazet 
Signed-off-by: Christian Marangi 
Reviewed-by: Eric Dumazet 
Link: https://lore.kernel.org/r/20231009133754.9834-2-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski

net/core: Introduce netdev_core_stats_inc()

2023-10-11T09:07:40+00:00

Although there is a kfree_skb_reason() helper function that can be used to
find the reason why this skb is dropped, but most callers didn't increase
one of rx_dropped, tx_dropped, rx_nohandler and rx_otherhost_dropped.

For the users, people are more concerned about why the dropped in ip
is increasing.

Introduce netdev_core_stats_inc() for trace the caller of
dev_core_stats_*_inc().

Also, add __code to netdev_core_stats_alloc(), as it's called with small
probability. And add noinline make sure netdev_core_stats_inc was never
inlined.

Signed-off-by: Yajun Deng 
Suggested-by: Alexander Lobakin 
Reviewed-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: add DEV_STATS_READ() helper

2023-10-01T15:33:01+00:00

Companion of DEV_STATS_INC() & DEV_STATS_ADD().

This is going to be used in the series.

Use it in macsec_get_stats64().

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: ethernet: mtk_wed: introduce partial AMSDU offload support for MT7988

2023-09-19T16:27:56+00:00

Introduce partial AMSDU offload support for MT7988 SoC in order to merge
in hw packets belonging to the same AMSDU before passing them to the
WLAN nic.

Co-developed-by: Lorenzo Bianconi 
Signed-off-by: Lorenzo Bianconi 
Signed-off-by: Sujuan Chen 
Signed-off-by: Paolo Abeni

netdev: expose DPLL pin handle for netdevice

2023-09-17T10:50:20+00:00

In case netdevice represents a SyncE port, the user needs to understand
the connection between netdevice and associated DPLL pin. There might me
multiple netdevices pointing to the same pin, in case of VF/SF
implementation.

Add a IFLA Netlink attribute to nest the DPLL pin handle, similar to
how it is implemented for devlink port. Add a struct dpll_pin pointer
to netdev and protect access to it by RTNL. Expose netdev_dpll_pin_set()
and netdev_dpll_pin_clear() helpers to the drivers so they can set/clear
the DPLL pin relationship to netdev.

Note that during the lifetime of struct dpll_pin the pin handle does not
change. Therefore it is save to access it lockless. It is drivers
responsibility to call netdev_dpll_pin_clear() before dpll_pin_put().

Signed-off-by: Jiri Pirko 
Signed-off-by: Arkadiusz Kubalewski 
Signed-off-by: Vadim Fedorenko 
Signed-off-by: David S. Miller

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2023-08-03T22:34:36+00:00

Martin KaFai Lau says:

====================
pull-request: bpf-next 2023-08-03

We've added 54 non-merge commits during the last 10 day(s) which contain
a total of 84 files changed, 4026 insertions(+), 562 deletions(-).

The main changes are:

1) Add SO_REUSEPORT support for TC bpf_sk_assign from Lorenz Bauer,
   Daniel Borkmann

2) Support new insns from cpu v4 from Yonghong Song

3) Non-atomically allocate freelist during prefill from YiFei Zhu

4) Support defragmenting IPv(4|6) packets in BPF from Daniel Xu

5) Add tracepoint to xdp attaching failure from Leon Hwang

6) struct netdev_rx_queue and xdp.h reshuffling to reduce
   rebuild time from Jakub Kicinski

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (54 commits)
  net: invert the netdevice.h vs xdp.h dependency
  net: move struct netdev_rx_queue out of netdevice.h
  eth: add missing xdp.h includes in drivers
  selftests/bpf: Add testcase for xdp attaching failure tracepoint
  bpf, xdp: Add tracepoint to xdp attaching failure
  selftests/bpf: fix static assert compilation issue for test_cls_*.c
  bpf: fix bpf_probe_read_kernel prototype mismatch
  riscv, bpf: Adapt bpf trampoline to optimized riscv ftrace framework
  libbpf: fix typos in Makefile
  tracing: bpf: use struct trace_entry in struct syscall_tp_t
  bpf, devmap: Remove unused dtab field from bpf_dtab_netdev
  bpf, cpumap: Remove unused cmap field from bpf_cpu_map_entry
  netfilter: bpf: Only define get_proto_defrag_hook() if necessary
  bpf: Fix an array-index-out-of-bounds issue in disasm.c
  net: remove duplicate INDIRECT_CALLABLE_DECLARE of udp[6]_ehashfn
  docs/bpf: Fix malformed documentation
  bpf: selftests: Add defrag selftests
  bpf: selftests: Support custom type and proto for client sockets
  bpf: selftests: Support not connecting client socket
  netfilter: bpf: Support BPF_F_NETFILTER_IP_DEFRAG in netfilter link
  ...
====================

Link: https://lore.kernel.org/r/20230803174845.825419-1-martin.lau@linux.dev
Signed-off-by: Jakub Kicinski