[DPDK/ethdev Bug 1940] [net/ice] E810 PF Passthrough: Intermittent Link Bring‑Up Failure After Reboot (DPDK 24.11.1)

[DPDK/ethdev Bug 1940] [net/ice] E810 PF Passthrough: Intermittent Link Bring‑Up Failure After Reboot (DPDK 24.11.1)

[bugzilla]

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: dev@dpdk.org
          Reporter: gownivalla.susmitha@wipro.com
  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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