Stanislav Fomichev 5ef44b3cb4 xsk: Bring back busy polling support ... Commit 86e25f40aa ("net: napi: Add napi_config") moved napi->napi_id assignment to a later point in time (napi_hash_add_with_id). This breaks __xdp_rxq_info_reg which copies napi_id at an earlier time and now stores 0 napi_id. It also makes sk_mark_napi_id_once_xdp and __sk_mark_napi_id_once useless because they now work against 0 napi_id. Since sk_busy_loop requires valid napi_id to busy-poll on, there is no way to busy-poll AF_XDP sockets anymore. Bring back the ability to busy-poll on XSK by resolving socket's napi_id at bind time. This relies on relatively recent netif_queue_set_napi, but (assume) at this point most popular drivers should have been converted. This also removes per-tx/rx cycles which used to check and/or set the napi_id value. Confirmed by running a busy-polling AF_XDP socket (github.com/fomichev/xskrtt) on mlx5 and looking at BusyPollRxPackets from /proc/net/netstat. Fixes: 86e25f40aa ("net: napi: Add napi_config") Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20250109003436.2829560-1-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-01-10 18:07:56 -08:00
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acpi	common: switch back from remove_new() to remove() callback	2024-11-25 17:31:39 -08:00
asm-generic	- Fix a case where posix timers with a thread-group-wide target would miss	2024-12-01 12:41:21 -08:00
clocksource	x86/hyperv: Fix hv tsc page based sched_clock for hibernation	2024-12-09 18:42:42 +00:00
crypto	This update includes the following changes:	2024-11-19 10:28:41 -08:00
cxl
drm	Merge tag 'drm-misc-fixes-2024-12-05' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes	2024-12-06 08:40:47 +10:00
dt-bindings	Char/Misc/IIO/Whatever driver subsystem updates for 6.13-rc1	2024-11-29 11:58:27 -08:00
keys
kunit	module: Convert symbol namespace to string literal	2024-12-02 11:34:44 -08:00
kvm	KVM: arm64: vgic: Kill VGIC_MAX_PRIVATE definition	2024-11-20 17:21:08 -08:00
linux	for-6.13-rc6-tag	2025-01-09 10:16:45 -08:00
math-emu
media
memory
misc
net	xsk: Bring back busy polling support	2025-01-10 18:07:56 -08:00
pcmcia
ras
rdma
rv
scsi	Random number generator updates for Linux 6.13-rc1.	2024-11-19 10:43:44 -08:00
soc	ARC fixes for 6.13-r32 or rc4	2024-12-15 15:38:12 -08:00
sound	ALSA: hda: cs35l56: Remove calls to cs35l56_force_sync_asp1_registers_from_cache()	2024-12-06 13:54:06 +01:00
target
trace	mm/damon: fix order of arguments in damos_before_apply tracepoint	2024-12-05 19:54:47 -08:00
uapi	Nothing major here. Over the last two weeks we gathered only around	2025-01-03 14:36:54 -08:00
ufs	scsi: ufs: qcom: Power off the PHY if it was already powered on in ufs_qcom_power_up_sequence()	2025-01-02 13:00:16 -05:00
vdso
video	- Improved handling of LCD power states and interactions with the fbdev subsystem.	2024-11-22 16:29:57 -08:00
xen