net/gnrc_netif/pktq: use event based scheduler

[jia200x]

Contribution description

This PR replaces the current IPC-based pktq schedule with an event based counterpart. This ensures that dequeueing packet events are never lost, while reducing the clutter of the gnrc_netif thread.

Testing procedure

Do a ping test with multi fragments (-s 1024) on any IEEE 802.15.4 device that supports the radio HAL (e.g nrf52840).

E.g:

--- fe80::e436:c5d4:f690:f82e PING statistics ---
200 packets transmitted, 200 packets received, 0% packet loss
round-trip min/avg/max = 171.122/196.049/210.003 ms

Issues/PRs references

None so far

Declaration of AI-Tools / LLMs usage:

AI-Tools / LLMs that were used are:

• none

[miri64]

We could use the opportunity here and port to ztimer_set.

[jia200x]

done!

[jia200x]

ah wait... forgot to update it in some of the files

[jia200x]

done!

[miri64]

Suggested change

	USEMODULE += ztimer
	USEMODULE += ztimer_usec

No?

[riot-ci]

Murdock results

❌ FAILED

e895a7e fixup! net/gnrc_netif/pktq: migrate to ztimer

Build failures (21)

Application	Target	Toolchain	Runtime (s)	Worker
examples/advanced/posix_select	native32	llvm	0.91	mobi3
examples/advanced/posix_select	native64	llvm	1.81	mobi6
examples/advanced/posix_select	samr21-xpro	llvm	5.06	skyleaf
examples/networking/coap/libcoap_server	native64	llvm	2.74	mobi6
examples/networking/coap/libcoap_server	native32	llvm	6.68	mobi6
examples/networking/coap/libcoap_server	samr21-xpro	llvm	7.89	mobi6
examples/networking/misc/telnet_server	native32	llvm	2.74	skyleaf
examples/networking/misc/telnet_server	samr21-xpro	llvm	1.77	mobi3
examples/networking/misc/telnet_server	native64	llvm	3.68	mobi7
tests/net/gcoap_forward_proxy	native64	llvm	0.75	mobi6
tests/net/gcoap_forward_proxy	native32	llvm	0.99	mobi3
tests/net/gcoap_forward_proxy	samr21-xpro	llvm	1.60	mobi6
tests/net/gnrc_ipv6_nib_6ln	native32	llvm	0.71	mobi6
tests/net/gnrc_ipv6_nib_6ln	native64	llvm	0.68	mobi6
tests/net/gnrc_netif_ipv6_wait_for_global_address	native32	llvm	0.90	mobi7
tests/net/gnrc_netif_ipv6_wait_for_global_address	native64	llvm	0.74	mobi6
tests/net/gnrc_netif_ipv6_wait_for_global_address	samr21-xpro	llvm	2.64	mobi6
tests/net/netstats_neighbor	native32	llvm	1.19	mobi6
tests/net/netstats_neighbor	native64	llvm	1.94	mobi3
tests/net/netstats_neighbor	samr21-xpro	llvm	3.36	mobi3

and 276 more build failures...

Artifacts

[miri64]

Code LGTM, but I currently do not have the hardware with me to test.

[miri64]

The documentation seems not to be correct here (or a function is missing, but more likely this is copy-pasta from above).