netdev - RE: [PATCH net-next 1/3] ice: add ice_adapter for shared data across PFs on the same NIC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <PH0PR11MB5095E69C450A6E9C2E7E6C73D6582@PH0PR11MB5095.namprd11.prod.outlook.com>
Date: Wed, 28 Feb 2024 17:39:56 +0000
From: "Keller, Jacob E" <jacob.e.keller@...el.com>
To: Jakub Kicinski <kuba@...nel.org>, mschmidt <mschmidt@...hat.com>
CC: "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>, Richard Cochran
	<richardcochran@...il.com>, "Kubalewski, Arkadiusz"
	<arkadiusz.kubalewski@...el.com>, "Kolacinski, Karol"
	<karol.kolacinski@...el.com>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>
Subject: RE: [PATCH net-next 1/3] ice: add ice_adapter for shared data across
 PFs on the same NIC



> -----Original Message-----
> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Tuesday, February 27, 2024 6:36 PM
> To: mschmidt <mschmidt@...hat.com>
> Cc: intel-wired-lan@...ts.osuosl.org; Brandeburg, Jesse
> <jesse.brandeburg@...el.com>; Richard Cochran <richardcochran@...il.com>;
> Kubalewski, Arkadiusz <arkadiusz.kubalewski@...el.com>; Kolacinski, Karol
> <karol.kolacinski@...el.com>; Keller, Jacob E <jacob.e.keller@...el.com>;
> netdev@...r.kernel.org
> Subject: Re: [PATCH net-next 1/3] ice: add ice_adapter for shared data across PFs
> on the same NIC
> 
> On Mon, 26 Feb 2024 16:11:23 +0100 Michal Schmidt wrote:
> > There is a need for synchronization between ice PFs on the same physical
> > adapter.
> >
> > Add a "struct ice_adapter" for holding data shared between PFs of the
> > same multifunction PCI device. The struct is refcounted - each ice_pf
> > holds a reference to it.
> >
> > Its first use will be for PTP. I expect it will be useful also to
> > improve the ugliness that is ice_prot_id_tbl.
> 
> ice doesn't support any multi-host devices?

No. I guess you could try to direct-assign one PF into a VM? But otherwise it doesn't have support for any multi-host. I also am not aware of any plans to add such a device to it in the future. I think all our future multi-host stuff would be with idpf.

Thanks,
Jake