> 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 and there is no enough > headroom or tailroom for AAD or digest, 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. > \ Change log missing.
Please get it reviewed from PMD maintainer. Also rebase the patchset, and fix checkpatch issues. > Suanming Mou (9): > common/mlx5: export memory region lookup by address > crypto/mlx5: split AES-XTS > crypto/mlx5: add AES-GCM query and initialization > crypto/mlx5: add AES-GCM encryption key > crypto/mlx5: add AES-GCM session configure > common/mlx5: add WQE-based QP synchronous basics > crypto/mlx5: add queue pair setup for GCM > crypto/mlx5: add enqueue and dequeue operations > crypto/mlx5: enable AES-GCM capability > > doc/guides/cryptodevs/mlx5.rst | 48 +- > doc/guides/rel_notes/release_23_07.rst | 1 + > drivers/common/mlx5/mlx5_common_mr.c | 2 +- > drivers/common/mlx5/mlx5_common_mr.h | 5 + > drivers/common/mlx5/mlx5_devx_cmds.c | 21 + > drivers/common/mlx5/mlx5_devx_cmds.h | 16 + > drivers/common/mlx5/mlx5_prm.h | 65 +- > drivers/common/mlx5/version.map | 3 + > drivers/crypto/mlx5/meson.build | 2 + > drivers/crypto/mlx5/mlx5_crypto.c | 673 ++--------------- > drivers/crypto/mlx5/mlx5_crypto.h | 101 ++- > drivers/crypto/mlx5/mlx5_crypto_dek.c | 102 ++- > drivers/crypto/mlx5/mlx5_crypto_gcm.c | 995 +++++++++++++++++++++++++ > drivers/crypto/mlx5/mlx5_crypto_xts.c | 645 ++++++++++++++++ > 14 files changed, 2014 insertions(+), 665 deletions(-) > create mode 100644 drivers/crypto/mlx5/mlx5_crypto_gcm.c > create mode 100644 drivers/crypto/mlx5/mlx5_crypto_xts.c > > -- > 2.25.1
