On Fri, Nov 18, 2022 at 12:58 PM Uttarwar, Sunil Prakashrao <sunilprakashrao.uttar...@amd.com> wrote: > Hi David, > > Please find the below update > > - only one DPDK application can use ccp crypto engines (PCI bus > allow/blocklist is not respected, right?), > Yes, only one crypto device can be used in a DPDK application for the crypto > operations. This is introduced from the patch crypto/ccp: convert driver from > vdev to PCI. This is implemented as per community suggestion.
Community suggested to have this driver a standard PCI driver, not a vdev one. I don't remember anything about the limitation. Can you point at the discussion that leaded to this? > > - since only one crypto device is exposed, there is no way for the > application to dedicate/decide how to distribute crypto operations over the > different ccp crypto engines available on the system. > > When there is no ccp device passed from the application > dpdk-test-crypto-perf, it tries to probe all CCP devices present on a system > and only one device can be used. It seems this is bug in the patch > implemented for crypto/ccp: convert driver from vdev to PCI and we are > looking into this. Indeed. So how should we proceed? Patches 1 to 3 are ready and can be merged. I don't mind dropping patch 4 if you have a better solution/alternative. -- David Marchand
