Spell checked and corrected documentation.
If there are any errors, or I have changed something that wasn't an error
please reach out to me so I can update the dictionary.
Cc: stable@dpdk.org
Signed-off-by: Henry Nadeau <hnadeau@iol.unh.edu>
In order to test the new mlx5 crypto PMD, the driver is added to the
crypto test application.
Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
The mlx5 HW crypto operations are done by attaching crypto property
to a memory region. Once done, every access to the memory via the
crypto-enabled memory region will result with in-line encryption or
decryption of the data.
As a result, the design choice is to provide two types of WQEs. One
is UMR WQE which sets the crypto property and the other is rdma write
WQE which sends DMA command to copy data from local MR to remote MR.
The size of the WQEs will be defined by a new devarg called
max_segs_num.
This devarg also defines the maximum segments in mbuf chain that will be
supported for crypto operations.
Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Signed-off-by: Matan Azrad <matan@nvidia.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
A keytag is a piece of data encrypted together with a DEK.
When a DEK is referenced by an MKEY.bsf through its index, the keytag is
also supplied in the BSF as plaintext. The HW will decrypt the DEK (and
the attached keytag) and will fail the operation if the keytags don't
match.
This commit adds the configuration of the keytag with devargs.
Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Signed-off-by: Matan Azrad <matan@nvidia.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
To work with crypto engines that are marked with wrapped_import_method,
a login session is required.
A crypto login object needs to be created using DevX.
The crypto login object contains:
- The credential pointer.
- The import_KEK pointer to be used for all secured information
communicated in crypto commands (key fields), including the
provided credential in this command.
- The credential secret, wrapped by the import_KEK indicated in
this command. Size includes 8 bytes IV for wrapping.
Added devargs for the required login values:
- wcs_file - path to the file containing the credential.
- import_kek_id - the import KEK pointer.
- credential_id - the credential pointer.
Create the login DevX object in pci_probe function and destroy it in
pci_remove.
Destroying the crypto login object means logout.
Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
Mellanox user space drivers don't deal with physical addresses as part
of a memory protection mechanism.
The device translates the given virtual address to a physical address
using the given memory key as an address space identifier.
That's why any mbuf virtual address is moved directly to the HW
descriptor(WQE).
The mapping between the virtual address to the physical address is saved
in MR configured by the kernel to the HW.
Each MR has a key that should also be moved to the WQE by the SW.
When the SW sees an unmapped address, it extends the address range and
creates a MR using a system call.
Add memory region cache management:
- 2 level cache per queue-pair - no locks.
- 1 shared cache between all the queues using a lock.
Using this way, the MR key search per data-path address is optimized.
Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
Sessions are used in symmetric transformations in order to prepare
objects and data for packet processing stage.
A mlx5 session includes iv_offset, pointer to mlx5_crypto_dek struct,
bsf_size, bsf_p_type, block size index, encryption_order and encryption
standard.
Implement the next session operations:
mlx5_crypto_sym_session_get_size- returns the size of the mlx5
session struct.
mlx5_crypto_sym_session_configure- prepares the DEK hash-list
and saves all the session data.
mlx5_crypto_sym_session_clear - destroys the DEK hash-list.
Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
Add a new PMD for Mellanox devices- crypto PMD.
The crypto PMD will be supported starting Nvidia ConnectX6 and
BlueField2.
The crypto PMD will add the support of encryption and decryption using
the AES-XTS symmetric algorithm.
The crypto PMD requires rdma-core and uses mlx5 DevX.
This patch adds the PCI probing, basic functions, build files and
log utility.
Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
