RE: [PATCH v6 4/6] bus/dpaa: disable qman Invalid Enqueue State interrupt

[Hemant Agrawal <hemant.agrawal@nxp.com>]

> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: 10 November 2025 15:02
> To: Hemant Agrawal <hemant.agrawal@nxp.com>; Sachin Saxena
> <sachin.saxena@nxp.com>; Jun Yang <jun.yang@nxp.com>; Gagandeep Singh
> <G.Singh@nxp.com>
> Cc: dev@dpdk.org; Stephen Hemminger <stephen@networkplumber.org>;
> David Marchand <david.marchand@redhat.com>
> Subject: Re: [PATCH v6 4/6] bus/dpaa: disable qman Invalid Enqueue State
> interrupt
> Importance: High
> 
> 24/10/2025 08:19, Gagandeep Singh:
> > From: Jun Yang <jun.yang@nxp.com>
> >
> > ShareMAC port is still alive after dpdk process quits but RXQ setup in
> > dpdk process is in invalid state. If high loading ingress traffic hits
> > the FMan PCD then it's en-queued to the RXQ to generate frequent
> > interrupts. This causes system stuck.
> > User can disable this kind of interrupt by env to avoid this issue:
> > export DPAA_QMAN_IESR_ISR_DISABLE=1
> >
> > Signed-off-by: Jun Yang <jun.yang@nxp.com>
> 
> For this patch and the next one,
> I don't think using environment variable is a good direction.
> We have devargs.
> Also these environment variables are not documented at all.
> 
> 
[Hemant] Yes, You are correct, we are slowly moving away from env variables.
I have asked Jun to update the documentation.