Kyle Evans 3705d679a6 if_wg: use proper barriers around pkt->p_state ... Without appropriate load-synchronization to pair with store barriers in wg_encrypt() and wg_decrypt(), the compiler and hardware are often allowed to reorder these loads in wg_deliver_out() and wg_deliver_in() such that we end up with a garbage or intermediate mbuf that we try to pass on. The issue is particularly prevalent with the weaker memory models of !x86 platforms. Switch from the big-hammer wmb() to more explicit acq/rel atomics to both make it obvious what we're syncing up with, and to avoid somewhat hefty fences on platforms that don't necessarily need this. With this patch, my dual-iperf3 reproducer is dramatically more stable than it is without on aarch64. PR: 264115 MFC after: 1 week Reviewed by: andrew, zlei Differential Revision: https://reviews.freebsd.org/D44283		2024-03-14 20:19:21 -05:00
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compat.h	wg: Drop the compat shim for sbcreatecontrol().	2022-11-11 14:18:48 -08:00
crypto.h	wg: Trim compat shims for versions older than current stable/13.	2022-10-28 13:36:13 -07:00
if_wg.c	if_wg: use proper barriers around pkt->p_state	2024-03-14 20:19:21 -05:00
if_wg.h	sys: Remove $FreeBSD$: two-line .h pattern	2023-08-16 11:54:11 -06:00
version.h
wg_cookie.c	wg: fix a number of issues with module load failure handling	2023-06-23 12:00:09 -05:00
wg_cookie.h
wg_crypto.c	wg: Trim compat shims for versions older than current stable/13.	2022-10-28 13:36:13 -07:00
wg_noise.c	if_wg: fix access to noise_local->l_has_identity and l_private	2024-01-17 17:29:54 -06:00
wg_noise.h