Maxim Mikityanskiy 1781beb879 tls: Skip tls_append_frag on zero copy size ... [ Upstream commit a0df71948e ] Calling tls_append_frag when max_open_record_len == record->len might add an empty fragment to the TLS record if the call happens to be on the page boundary. Normally tls_append_frag coalesces the zero-sized fragment to the previous one, but not if it's on page boundary. If a resync happens then, the mlx5 driver posts dump WQEs in tx_post_resync_dump, and the empty fragment may become a data segment with byte_count == 0, which will confuse the NIC and lead to a CQE error. This commit fixes the described issue by skipping tls_append_frag on zero size to avoid adding empty fragments. The fix is not in the driver, because an empty fragment is hardly the desired behavior. Fixes: e8f6979981 ("net/tls: Add generic NIC offload infrastructure") Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Link: https://lore.kernel.org/r/20220426154949.159055-1-maximmi@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-05-09 09:05:05 +02:00
..
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	net/tls: add skeleton of MIB statistics	2019-10-05 16:29:00 -07:00
tls_device.c	tls: Skip tls_append_frag on zero copy size	2022-05-09 09:05:05 +02:00
tls_device_fallback.c	net/tls: Fix use-after-free after the TLS device goes down and up	2021-06-10 13:39:18 +02:00
tls_main.c	tls: fix replacing proto_ops	2021-12-01 09:19:07 +01:00
tls_proc.c	net: fix proc_fs init handling in af_packet and tls	2021-02-23 15:53:23 +01:00
tls_sw.c	net/tls: fix slab-out-of-bounds bug in decrypt_internal	2022-04-13 21:01:04 +02:00
tls_toe.c	net/tls: rename tls_hw_* functions tls_toe_*	2019-10-04 14:07:07 -07:00
trace.c	net/tls: add tracing for device/offload events	2019-10-05 16:29:00 -07:00
trace.h	net/tls: add device decrypted trace point	2019-10-05 16:29:00 -07:00