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From: "McDaniel, Timothy" <timothy.mcdaniel@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>
CC: "dev@dpdk.org" <dev@dpdk.org>, "Carrillo, Erik G"
 <erik.g.carrillo@intel.com>, "Eads, Gage" <gage.eads@intel.com>, "Van Haaren, 
 Harry" <harry.van.haaren@intel.com>, "jerinj@marvell.com"
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Thread-Topic: [PATCH v5 00/23] Add DLB2 PMD
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Date: Fri, 30 Oct 2020 10:16:41 +0000
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Subject: Re: [dpdk-dev] [PATCH v5 00/23] Add DLB2 PMD
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> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Friday, October 30, 2020 5:02 AM
> To: McDaniel, Timothy <timothy.mcdaniel@intel.com>
> Cc: dev@dpdk.org; Carrillo, Erik G <erik.g.carrillo@intel.com>; Eads, Gag=
e
> <gage.eads@intel.com>; Van Haaren, Harry <harry.van.haaren@intel.com>;
> jerinj@marvell.com; david.marchand@redhat.com
> Subject: Re: [PATCH v5 00/23] Add DLB2 PMD
>=20
> 30/10/2020 10:43, Timothy McDaniel:
> > - note that the code still uses its private byte-encoded versions of
> >   umonitor/umwait, rather than the new functions in the power
> >   patch that are built on top of those intrinsics. This is intentional.
>=20
> Why? Now these intrinsics are available in the main branch.
> We should avoid duplicating such code.
>=20
>=20

I had asked that the low level intrinsics (UMWAIT/UMONITOR) be split out so=
 that DLB/DLB2 could use them instead of its own private byte-encoded versi=
ons, but instead we have these wrappers that call the low level intrinsics.=
 Those wrappers
introduce additional overhead that is not required for DLB/DLB2. I have a m=
eeting with Ma Liang on Monday to discuss.