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net/mlx5e: kTLS, Add kTLS RX HW offload support

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Implement driver support for the kTLS RX HW offload feature.
Resync support is added in a downstream patch.

New offload contexts post their static/progress params WQEs
over the per-channel async ICOSQ, protected under a spin-lock.
The Channel/RQ is selected according to the socket's rxq index.

Feature is OFF by default. Can be turned on by:
$ ethtool -K <if> tls-hw-rx-offload on

A new TLS-RX workqueue is used to allow asynchronous addition of
steering rules, out of the NAPI context.
It will be also used in a downstream patch in the resync procedure.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Tariq Toukan 2020-05-28 10:13:00 +03:00 • committed by Saeed Mahameed
commit 1182f36593
19 changed files with 529 additions and 32 deletions
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