>From Israel,
The purpose of this patchset is to add support for inline
encryption/decryption of the data at storage protocols like nvmf over
RDMA (at a similar way like integrity is used via unique mkey).
This patchset adds support for plaintext keys. The patches were tested
on BF-3 HW with fscrypt tool to test this feature, which showed reduce
in CPU utilization when comparing at 64k or more IO size. The CPU utilization
was improved by more than 50% comparing to the SW only solution at this case.
How to configure fscrypt to enable plaintext keys:
# mkfs.ext4 -O encrypt /dev/nvme0n1
# mount /dev/nvme0n1 /mnt/crypto -o inlinecrypt
# head -c 64 /dev/urandom > /tmp/master_key
# fscryptctl add_key /mnt/crypto/ < /tmp/master_key
# mkdir /mnt/crypto/test1
# fscryptctl set_policy 152c41b2ea39fa3d90ea06448456e7fb /mnt/crypto/test1
** “152c41b2ea39fa3d90ea06448456e7fb” is the output of the
“fscryptctl add_key” command.
# echo foo > /mnt/crypto/test1/foo
Notes:
- At plaintext mode only, the user set a master key and the fscrypt
driver derived from it the DEK and the key identifier.
- 152c41b2ea39fa3d90ea06448456e7fb is the derived key identifier
- Only on the first IO, nvme-rdma gets a callback to load the derived DEK.
There is no special configuration to support crypto at nvme modules.
Thanks
Israel Rukshin (13):
net/mlx5: Introduce crypto IFC bits and structures
net/mlx5: Introduce crypto capabilities macro
RDMA: Split kernel-only create QP flags from uverbs create QP flags
RDMA/core: Add cryptographic device capabilities
RDMA/core: Add DEK management API
RDMA/core: Introduce MR type for crypto operations
RDMA/core: Add support for creating crypto enabled QPs
RDMA/mlx5: Add cryptographic device capabilities
RDMA/mlx5: Add DEK management API
RDMA/mlx5: Add AES-XTS crypto support
nvme: Introduce a local variable
nvme: Add crypto profile at nvme controller
nvme-rdma: Add inline encryption support
drivers/infiniband/core/device.c | 3 +
drivers/infiniband/core/mr_pool.c | 2 +
drivers/infiniband/core/uverbs_std_types_qp.c | 12 +-
drivers/infiniband/core/verbs.c | 91 ++++++-
drivers/infiniband/hw/bnxt_re/ib_verbs.c | 2 +-
drivers/infiniband/hw/mlx4/mlx4_ib.h | 4 +-
drivers/infiniband/hw/mlx4/qp.c | 4 +-
drivers/infiniband/hw/mlx5/Makefile | 1 +
drivers/infiniband/hw/mlx5/crypto.c | 115 +++++++++
drivers/infiniband/hw/mlx5/crypto.h | 46 ++++
drivers/infiniband/hw/mlx5/main.c | 5 +
drivers/infiniband/hw/mlx5/mlx5_ib.h | 5 +-
drivers/infiniband/hw/mlx5/mr.c | 33 +++
drivers/infiniband/hw/mlx5/qp.c | 15 +-
drivers/infiniband/hw/mlx5/wr.c | 164 +++++++++++-
drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 2 +-
drivers/net/ethernet/mellanox/mlx5/core/fw.c | 6 +
.../net/ethernet/mellanox/mlx5/core/main.c | 1 +
drivers/nvme/host/core.c | 10 +-
drivers/nvme/host/nvme.h | 4 +
drivers/nvme/host/rdma.c | 236 +++++++++++++++++-
include/linux/mlx5/device.h | 4 +
include/linux/mlx5/mlx5_ifc.h | 36 ++-
include/rdma/crypto.h | 118 +++++++++
include/rdma/ib_verbs.h | 46 +++-
include/trace/events/rdma_core.h | 33 +++
26 files changed, 954 insertions(+), 44 deletions(-)
create mode 100644 drivers/infiniband/hw/mlx5/crypto.c
create mode 100644 drivers/infiniband/hw/mlx5/crypto.h
create mode 100644 include/rdma/crypto.h
--
2.39.0
