[dpdk-dev] eal/pci: Improve automatic selection of IOVA mode
Jerin Jacob Kollanukkaran
jerinj at marvell.com
Tue Jun 4 13:28:29 CEST 2019
From: David Marchand <david.marchand at redhat.com>
Sent: Monday, June 3, 2019 4:19 PM
To: Ben Walker <benjamin.walker at intel.com>; Jerin Jacob Kollanukkaran <jerinj at marvell.com>
Cc: dev <dev at dpdk.org>; Burakov, Anatoly <anatoly.burakov at intel.com>
Subject: Re: [dpdk-dev] eal/pci: Improve automatic selection of IOVA mode
> - This leaves the --iova-va forcing option.
> Why do we need it?
> If we don't have access to physical addresses, no choice but run in VA mode.
> If we have access to physical addresses, the only case would be that you want to downgrade from PA to VA.
> But well, your process can still access it, not sure what the benefit is.
> Jerin, I can see in the history you worked on this.
> What did I miss?
> Is there something wrong with dropping the detection code?
Its added by Eric to support virtual devices.
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