E810 PF Passthrough: Intermittent Link Bring‑Up Failure After Reboot (DPDK 24.11.1)

http://bugs.dpdk.org/show_bug.cgi?id=1940

Bug ID: 1940
Summary: [net/ice] E810 PF Passthrough: Intermittent Link
Bring‑Up Failure After Reboot (DPDK 24.11.1)
Product: DPDK
Version: 24.11
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: major
Priority: Normal
Component: ethdev
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---

Hello DPDK Community,

We are facing an intermittent physical link bring‑up failure with Intel E810 PF passthrough to a VM using DPDK 24.11.1. The failure occurs after reboot.

NIC: Intel E810 (Dell OEM, dual‑port)
NVM: 4.20
Host ICE driver: 1.11.14
Guest ICE driver (base): 1.6.4
DPDK: 24.11.1
Mode: PF passthrough
Environment: Openstack

After a VM reboot, port availability is inconsistent; occasionally both ports come up, but often only one or neither initializes.

We would appreciate input on:

1. Any known ICE PMD issues with E810 in PF passthrough scenarios.
3. Known firmware dependencies or minimum NVM levels required for stable PFPT operation.
4. Any potential software-level workarounds to mitigate compatibility issues without changing the underlying firmware/driver?
5. Any upstream discussions or patches related to E810 reset/timing issues?

Thanks in advance.

Regards,
Susmitha

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