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From: Parav Pandit <parav@nvidia.com>
To: Alexander Duyck <alexander.duyck@gmail.com>,
	Jason Gunthorpe <jgg@nvidia.com>
Cc: Saeed Mahameed <saeed@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Leon Romanovsky <leonro@nvidia.com>,
	Netdev <netdev@vger.kernel.org>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	David Ahern <dsahern@kernel.org>,
	Jacob Keller <jacob.e.keller@intel.com>,
	"Sridhar Samudrala" <sridhar.samudrala@intel.com>,
	"Ertman, David M" <david.m.ertman@intel.com>,
	Dan Williams <dan.j.williams@intel.com>,
	"Kiran Patil" <kiran.patil@intel.com>,
	Greg KH <gregkh@linuxfoundation.org>
Subject: RE: [net-next v4 00/15] Add mlx5 subfunction support
Date: Wed, 16 Dec 2020 04:45:09 +0000	[thread overview]
Message-ID: <BY5PR12MB43228933A645DFAC0CAEFE5BDCC50@BY5PR12MB4322.namprd12.prod.outlook.com> (raw)
In-Reply-To: <CAKgT0UcwP67ihaTWLY1XsVKEgysa3HnjDn_q=Sgvqnt=Uc7YQg@mail.gmail.com>



> From: Alexander Duyck <alexander.duyck@gmail.com>
> Sent: Wednesday, December 16, 2020 9:43 AM
> 
> >
> > That is goal here. This is not about creating just a netdev, this is
> > about the whole kit: rdma, netdev, vdpa virtio-net, virtio-mdev.
> 
> One issue is right now we are only seeing the rdma and netdev. It is kind of
> backwards as it is using the ADIs on the host when this was really meant to
> be used for things like mdev.
>
mdev is just yet another _use_ of subfunction.
There are users of subfunction who want to use it without mapping subfunction as mdev to guest VM.
i.e. as netdev, rdma, vdpa.
In future direct assignment can be via mdev of subfunction, like how rest of the above devices are done.

Creating a subfunction for non vfio purpose via vfio mdev is just not right.
If I understand you correctly, I hope you are not suggesting that.

  reply	other threads:[~2020-12-16  4:46 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-14 21:43 [net-next v4 00/15] Add mlx5 subfunction support Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 01/15] net/mlx5: Fix compilation warning for 32-bit platform Saeed Mahameed
2020-12-14 22:31   ` Alexander Duyck
2020-12-14 22:45     ` Saeed Mahameed
2020-12-15  4:59     ` Leon Romanovsky
2020-12-14 21:43 ` [net-next v4 02/15] devlink: Prepare code to fill multiple port function attributes Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 03/15] devlink: Introduce PCI SF port flavour and port attribute Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 04/15] devlink: Support add and delete devlink port Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 05/15] devlink: Support get and set state of port function Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 06/15] net/mlx5: Introduce vhca state event notifier Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 07/15] net/mlx5: SF, Add auxiliary device support Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 08/15] net/mlx5: SF, Add auxiliary device driver Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 09/15] net/mlx5: E-switch, Prepare eswitch to handle SF vport Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 10/15] net/mlx5: E-switch, Add eswitch helpers for " Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 11/15] net/mlx5: SF, Add port add delete functionality Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 12/15] net/mlx5: SF, Port function state change support Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 13/15] devlink: Add devlink port documentation Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 14/15] devlink: Extend devlink port documentation for subfunctions Saeed Mahameed
2020-12-14 21:43 ` [net-next v4 15/15] net/mlx5: Add devlink subfunction port documentation Saeed Mahameed
2020-12-15  1:53 ` [net-next v4 00/15] Add mlx5 subfunction support Alexander Duyck
2020-12-15  2:44   ` David Ahern
2020-12-15 16:16     ` Alexander Duyck
2020-12-15 16:59       ` Parav Pandit
2020-12-15  5:48   ` Parav Pandit
2020-12-15 18:47     ` Alexander Duyck
2020-12-15 20:05       ` Saeed Mahameed
2020-12-15 21:03       ` Jason Gunthorpe
2020-12-16  1:12       ` Edwin Peer
2020-12-16  2:39         ` Jason Gunthorpe
2020-12-16  3:12         ` Alexander Duyck
2020-12-15 20:59     ` David Ahern
2020-12-15  6:15   ` Saeed Mahameed
2020-12-15 19:12     ` Alexander Duyck
2020-12-15 20:35       ` Saeed Mahameed
2020-12-15 21:28         ` Jakub Kicinski
2020-12-16  6:50           ` Leon Romanovsky
2020-12-16 17:59             ` Saeed Mahameed
2020-12-15 21:41         ` Alexander Duyck
2020-12-16  0:19           ` Jason Gunthorpe
2020-12-16  2:19             ` Alexander Duyck
2020-12-16  3:03               ` Jason Gunthorpe
2020-12-16  4:13                 ` Alexander Duyck
2020-12-16  4:45                   ` Parav Pandit [this message]
2020-12-16 13:33                   ` Jason Gunthorpe
2020-12-16 16:31                     ` Alexander Duyck
2020-12-16 17:51                       ` Jason Gunthorpe
2020-12-16 19:27                         ` Alexander Duyck
2020-12-16 20:35                           ` Jason Gunthorpe
2020-12-16 22:53                             ` Alexander Duyck
2020-12-17  0:38                               ` Jason Gunthorpe
2020-12-17 18:48                                 ` Alexander Duyck
2020-12-17 19:40                                   ` Jason Gunthorpe
2020-12-17 21:05                                     ` Alexander Duyck
2020-12-18  0:08                                       ` Jason Gunthorpe
2020-12-18  1:30                               ` David Ahern
2020-12-18  3:11                                 ` Alexander Duyck
2020-12-18  3:55                                   ` David Ahern
2020-12-18 15:54                                     ` Alexander Duyck
2020-12-18  5:20                                   ` Parav Pandit
2020-12-18  5:36                                     ` Parav Pandit
2020-12-18 16:01                                     ` Alexander Duyck
2020-12-18 18:01                                       ` Parav Pandit
2020-12-18 19:22                                         ` Alexander Duyck
2020-12-18 20:18                                           ` Jason Gunthorpe
2020-12-19  0:03                                             ` Alexander Duyck

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