Hardware acceleration is not functional

[juhaylinen]

Description

• Type: Bug
• Priority: Major

---

Bug

Target
UBLOX_EVK_ODIN_W2

Toolchain:
GCC_ARM|ARM|IAR

mbed-cli version:
(1.2.2)

mbed-os sha:
ad284b2 (mbed-os-5.8.0)
or
addec7b (mbed-os-5.8.1)

Expected behavior
DTLS handshake works and device connects to mbed cloud

Actual behavior
DTLS handshake fails and device fails to connect to mbed cloud

Steps to reproduce
clone https://github.com/ARMmbed/mbed-cloud-client-example

Edit file mbed_cloud_client_user_config.h to change transport mode from TCP to UDP
-#define MBED_CLOUD_CLIENT_TRANSPORT_MODE_TCP
+#define MBED_CLOUD_CLIENT_TRANSPORT_MODE_UDP

update mbed-os version to 5.8.0 or 5.8.1
compile the client example for UBLOX_EVK_ODIN_W2

---

Connection works if TCP is used
Workaround for UDP connection issue is to disable SHA256 hardware acceleration from file
https://github.com/ARMmbed/mbed-os/blob/master/features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/mbedtls_device.h

[teetak01]

@juhaylinen the public example does not support Mbed OS 5.8 yet. It will be enabled only with 1.3.1 version of Cloud Client.
[Mirrored to Jira]

[JanneKiiskila]

@andreaslarssonublox

[Mirrored to Jira]

[TuomoHautamaki]

@ARMmbed/team-ublox
[Mirrored to Jira]

[SeppoTakalo]

NOTE: Broken after this PR which enabled HW acceleration #5630

[Mirrored to Jira]

[JanneKiiskila]

Ping - @adustm - any ideas/input to this?

[Mirrored to Jira]

[adustm]

Hello,

Do you think this could be related to this ?
#6003

I don't think that PR#5630 has been merged in 5.8.0 but much earlier.

[Mirrored to Jira]

[juhaylinen]

Yes, I think it's related.
#5630 broke Odin's wifi connectivity and it was partly fixed in #6032. (Commits 67772a5 and 34099ba)
Issue in DTLS handshake was found recently
[Mirrored to Jira]

[adustm]

Could you clarify if the use case UDP mode + mbed-os 5.8.0 + UBLOX_EVK_ODIN_W2 is working ?

Kind regards
[Mirrored to Jira]

[andreaslarssonublox]

We'll have a look at it. Internal Jira ticket: TE_OM2-175.
[Mirrored to Jira]

[JanneKiiskila]

@andreaslarssonublox @adustm - any news on this case?

[Mirrored to Jira]

[0xc0170]

We'll have a look at it. Internal Jira ticket: TE_OM2-175.

Please keep us updated
[Mirrored to Jira]

[andreaslarssonublox]

Can you check this @asifrizwanubx?
[Mirrored to Jira]