Maxim Mikityanskiy c3e7ea5860 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 09:03:26 +02:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
tls_device.c	tls: Skip tls_append_frag on zero copy size	2022-05-09 09:03:26 +02:00
tls_device_fallback.c	net: Use skb_frag_off accessors	2019-07-30 14:21:32 -07:00
tls_main.c	bpf: Sockmap/tls, push write_space updates through ulp updates	2020-01-23 08:22:45 +01:00
tls_sw.c	net/tls: fix slab-out-of-bounds bug in decrypt_internal	2022-04-15 14:18:37 +02:00