> > > > >
> > > > Right now we are targeting crypto_cn10k PMD and ipsec-secgw event
> > > > mode to support vectorization.
> > > Is there a way to test this? When can be dataplane changes expected?
> > >
> > If the spec looks okay, support in s/w crypto adapter and other h/w PMDs can
> > be added by respective maintainers. Currently, we are adding library change,
> > support for one PMD and an application to test the feature. Feature is 
> > exposed
> > with capability flag to not break existing functionality.
> Got it. How do I test this feature without data plane changes?


Hi @Gujjar, Abhinandan S

> If there is a way to test this, please let me know.

Dataplane changes can be tested on the cn10k platform.
This feature is a hardware assisted feature.

> This design is right now tested for cn10k, I am not sure this works for sw 
> adapter.

SW driver support is not added in this series as in order to accept a
API change, one would need,
1)API spec
2)One of the driver
3)Test application to exercise the API.

It is a similar case for all ethdev, rte_flow features etc.
Community can add SW driver support just like any other subsystem APIs.

Also, The proposed library changes don't differentiate between SW & HW PMDs.
The proposed changes are exposed with a capability flag and so SW
crypto adapter will not have any perf impact.

> I need to have perf data with and without vectorization support to approve.

On the cn10k platform, we see nearly 2.5x performance with
vectorization. Eth rx adapter already supports vectorization and this
spec change is in line with that.

Also IPsec gateway update to exercise these APIs. See
http://patches.dpdk.org/project/dpdk/patch/20220804103626.102688-6-vfia...@marvell.com/

Command to test on drivers which have this functionality.

./dpdk-ipsec-secgw -c 0xff0000 -a 0002:01:00.1 -a 0002:20:00.1 -a
0002:1e:00.0 -- -P -p 0x1 -P  --transfer-mode event -l
--event-schedule-type parallel --desc-nb 8192 --event-vector -f
simple.conf

sample.conf

sp ipv4 out esp protect 19 pri 1 dst 192.18.0.0/32 sport 0:65535 dport 0:65535
sa out 19 aead_algo aes-128-gcm aead_key
73:69:78:74:65:65:6e:62:79:74:65:73:20:6b:65:79:64:70:64:6b mode
ipv4-tunnel src 2.1.1.1 dst 1.1.1.1 type lookaside-protocol-offload
port_id 0

neigh port 0 d0:37:45:02:b0:d3
rt ipv4 dst 1.1.0.0/16 port 0

In order to make forward progress and merge patch in RC1, I would request
1)Review the API specific patch(eventdev: introduce event cryptodev
vector type), If spec needs to be changed to adapt any other driver(SW
or HW) then the author should address that.
2)If you think, API usage is not enough with dpdk-ipsec-secgw
application, I think, author should update the test-eventdev
application to support the new mode.Which can be merged after RC1 as
it is a test application change.

Let us know what you think to make forward progress.

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