netdev - Re: [MAINTAINERS SUMMIT] Device Passthrough Considered Harmful?

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Message-ID: <20240801142344.GN3371438@nvidia.com>
Date: Thu, 1 Aug 2024 11:23:44 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Borislav Petkov <bp@...en8.de>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Dan Williams <dan.j.williams@...el.com>, ksummit@...ts.linux.dev,
	linux-cxl@...r.kernel.org, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, shiju.jose@...wei.com,
	Mauro Carvalho Chehab <mchehab@...nel.org>
Subject: Re: [MAINTAINERS SUMMIT] Device Passthrough Considered Harmful?

On Tue, Jul 30, 2024 at 03:19:30PM +0200, Borislav Petkov wrote:
> On Mon, Jul 29, 2024 at 11:58:50AM -0300, Jason Gunthorpe wrote:
> > Like continuous memory scrubbing and EDAC is not really fwctl since it
> > is part of the main mission of a memory device. However evaluating the
> > memory to measure current ECC error rate for data collection and
> > debugging would be appropriate for fwctl.
> 
> fwctl?
> 
> What's that? Something to do with "firmware"? If so, how does this thing have
> anything to do with RAS stuff?

https://lore.kernel.org/linux-rdma/6-v2-940e479ceba9+3821-fwctl_jgg@nvidia.com/
https://lore.kernel.org/r/20240718213446.1750135-1-dave.jiang@intel.com

Jonathan is concerned that Dave exposed some of the scrubber FW RPCs
through fwctl.

> We have rasdaemon for that where all the RAS controlling and evaluation goes
> into.

Sure

Jaso