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[RFC,0/5] crypto/mlx5: support AES-GCM

Message ID 20230418092325.2578712-1-suanmingm@nvidia.com (mailing list archive)
Headers

Message

Suanming Mou April 18, 2023, 9:23 a.m. UTC 
  AES-GCM provides both authenticated encryption and the ability to check
the integrity and authentication of additional authenticated data (AAD)
that is sent in the clear.

The crypto operations are performed with crypto WQE. If the input
buffers(AAD, mbuf, digest) are not contiguous, as the requirement
from FW, an UMR WQE is needed to generate contiguous address space
for crypto WQE. The UMR WQE and crypto WQE are handled in two
different QPs.

The QP for UMR operation contains two types of WQE, UMR and SEND_EN
WQE. The WQEs are built dynamically according to the crypto operation 
buffer address. Crypto operation with non-contiguous buffers will
have its own UMR WQE, while the operation with contiguous buffers   
doesn't need the UMR WQE. Once the all the operations WQE in the
enqueue burst built finishes, if any UMR WQEs are built, additional
SEND_EN WQE will be as the final WQE of the burst in the UMR QP.
The purpose of that SEND_EN WQE is to trigger the crypto QP processing
with the UMR ready input memory address space buffers.

The QP for crypto operations contains only the crypto WQE and the QP
WQEs are built as fixed in QP setup. The QP processing is triggered
by doorbell ring or the SEND_EN WQE from UMR QP.

Suanming Mou (5):
  crypto/mlx5: add AES-GCM capability
  crypto/mlx5: add AES-GCM encryption key
  crypto/mlx5: add AES-GCM session configure
  crypto/mlx5: add queue pair setup
  crypto/mlx5: add enqueue and dequeue operations

 doc/guides/nics/mlx5.rst              |   8 +
 drivers/common/mlx5/mlx5_devx_cmds.c  |  29 +-
 drivers/common/mlx5/mlx5_devx_cmds.h  |  18 +
 drivers/common/mlx5/mlx5_prm.h        |  62 +-
 drivers/crypto/mlx5/meson.build       |   1 +
 drivers/crypto/mlx5/mlx5_crypto.c     |  64 +-
 drivers/crypto/mlx5/mlx5_crypto.h     |  57 +-
 drivers/crypto/mlx5/mlx5_crypto_dek.c | 157 +++--
 drivers/crypto/mlx5/mlx5_crypto_gcm.c | 803 ++++++++++++++++++++++++++
 9 files changed, 1139 insertions(+), 60 deletions(-)
 create mode 100644 drivers/crypto/mlx5/mlx5_crypto_gcm.c