The AES-NI GCM PMD (librte_pmd_aesni_gcm) provides poll mode crypto driver support for utilizing Intel multi buffer library (see AES-NI Multi-buffer PMD documentation to learn more about it, including installation).
AESNI GCM PMD has support for:
Authentication algorithms:
AEAD algorithms:
To build DPDK with the AESNI_GCM_PMD the user is required to download the multi-buffer library from here and compile it on their user system before building DPDK. The latest version of the library supported by this PMD is v0.53, which can be downloaded in https://github.com/01org/intel-ipsec-mb/archive/v0.53.zip.
make
make install
As a reference, the following table shows a mapping between the past DPDK versions and the external crypto libraries supported by them:
DPDK version | Crypto library version |
---|---|
16.04 - 16.11 | Multi-buffer library 0.43 - 0.44 |
17.02 - 17.05 | ISA-L Crypto v2.18 |
17.08 - 18.02 | Multi-buffer library 0.46 - 0.48 |
18.05 - 19.02 | Multi-buffer library 0.49 - 0.52 |
19.05+ | Multi-buffer library 0.52 - 0.53 |
In order to enable this virtual crypto PMD, user must:
To use the PMD in an application, user must:
The following parameters (all optional) can be provided in the previous two calls:
Example:
./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_gcm,socket_id=0,max_nb_sessions=128" \
-- -p 1 --cdev SW --chain AEAD --aead_algo "aes-gcm"