linux

iv/linux

History

Tariq Toukan 7adc91e0c9 net/tls: Multi-threaded calls to TX tls_dev_del

Multiple TLS device-offloaded contexts can be added in parallel via
concurrent calls to .tls_dev_add, while calls to .tls_dev_del are
sequential in tls_device_gc_task.

This is not a sustainable behavior. This creates a rate gap between add
and del operations (addition rate outperforms the deletion rate).  When
running for enough time, the TLS device resources could get exhausted,
failing to offload new connections.

Replace the single-threaded garbage collector work with a per-context
alternative, so they can be handled on several cores in parallel. Use
a new dedicated destruct workqueue for this.

Tested with mlx5 device:
Before: 22141 add/sec,   103 del/sec
After:  11684 add/sec, 11684 del/sec

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

2022-07-28 21:50:54 -07:00

Kconfig

net/tls: Select SOCK_RX_QUEUE_MAPPING from TLS_DEVICE

2021-02-11 19:08:06 -08:00

Makefile

tls: rx: async: hold onto the input skb

2022-07-18 11:24:11 +01:00

tls_device_fallback.c

tls: create an internal header

2022-07-08 18:38:45 -07:00

tls_device.c

net/tls: Multi-threaded calls to TX tls_dev_del