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From: Shahaf Shuler <shahafs@mellanox.com>
To: "Burakov, Anatoly" <anatoly.burakov@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Cc: Olga Shern <olgas@mellanox.com>,
	Yongseok Koh <yskoh@mellanox.com>,
	"pawelx.wodkowski@intel.com" <pawelx.wodkowski@intel.com>,
	"gowrishankar.m@linux.vnet.ibm.com"
	<gowrishankar.m@linux.vnet.ibm.com>,
	"ferruh.yigit@intel.com" <ferruh.yigit@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>,
	"arybchenko@solarflare.com" <arybchenko@solarflare.com>,
	"shreyansh.jain@nxp.com" <shreyansh.jain@nxp.com>
Subject: Re: [dpdk-dev] [RFC] ethdev: introduce DMA memory mapping for external memory
Date: Wed, 16 Jan 2019 11:04:11 +0000
Message-ID: <DB7PR05MB44267AD0AA8A444D0177B1E4C3820@DB7PR05MB4426.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <8c664d56-06c1-bd45-10f1-c0f57438910f@intel.com>

Tuesday, January 15, 2019 2:07 PM, Burakov, Anatoly:
> Subject: Re: [dpdk-dev] [RFC] ethdev: introduce DMA memory mapping for
> external memory
> 
> On 14-Jan-19 6:12 AM, Shahaf Shuler wrote:
> > Hi Anatoly,
> >
> > Any last inputs on this one? Would like to prepare a patch for 19.05 and it
> would much effect the design.
> >
> 
> Hi Shahaf,
> 
> Unfortunately, i've been preoccupied with other stuff lately. I will have
> another look at this issue over the week and come back to you.
> Please feel free to ping me personally if i don't :)

Sure, will 😊.

Just to mention, I traversed through the vfio kernel code and it looks like it has what it takes. 
for type1 mapping[1] I would expect to get EEXIST.
for spapr mapping[2] I would expect to get EBUSY.

Will wait to your findings. 

[1]
https://elixir.bootlin.com/linux/latest/source/drivers/vfio/vfio_iommu_type1.c#L1108

[2]
https://elixir.bootlin.com/linux/latest/source/drivers/vfio/vfio_iommu_spapr_tce.c#L176

> 
> --
> Thanks,
> Anatoly

  reply	other threads:[~2019-01-16 11:04 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-04 12:41 Shahaf Shuler
2018-11-14 11:19 ` Burakov, Anatoly
2018-11-14 14:53   ` Shahaf Shuler
2018-11-14 17:06     ` Burakov, Anatoly
2018-11-15  9:46       ` Shahaf Shuler
2018-11-15 10:59         ` Burakov, Anatoly
2018-11-19 11:20           ` Shahaf Shuler
2018-11-19 17:18             ` Burakov, Anatoly
     [not found]               ` <DB7PR05MB442643DFD33B71797CD34B5EC3D90@DB7PR05MB4426.eurprd05.prod.outlook.com>
2018-11-20 10:55                 ` Burakov, Anatoly
2018-11-22 10:06                   ` Shahaf Shuler
2018-11-22 10:41                     ` Burakov, Anatoly
2018-11-22 11:31                       ` Shahaf Shuler
2018-11-22 11:34                         ` Burakov, Anatoly
2019-01-14  6:12                         ` Shahaf Shuler
2019-01-15 12:07                           ` Burakov, Anatoly
2019-01-16 11:04                             ` Shahaf Shuler [this message]
2018-11-19 17:04           ` Stephen Hemminger

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