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From: "Xia, Chenbo" <chenbo.xia@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>,
	"Yigit, Ferruh" <ferruh.yigit@intel.com>
Cc: Xueming Li <xuemingl@nvidia.com>,
	Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [RFC 00/14] mlx5: support SubFunction
Date: Fri, 11 Jun 2021 05:14:21 +0000
Message-ID: <BY5PR11MB4055DD8D9EACCA2DB9ED3F019C349@BY5PR11MB4055.namprd11.prod.outlook.com> (raw)
In-Reply-To: <3858146.r4qRVYXuaD@thomas>

Hi Thomas,

> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Thursday, June 10, 2021 9:23 PM
> To: Yigit, Ferruh <ferruh.yigit@intel.com>
> Cc: Xueming Li <xuemingl@nvidia.com>; Viacheslav Ovsiienko
> <viacheslavo@nvidia.com>; dev@dpdk.org; Xia, Chenbo <chenbo.xia@intel.com>
> Subject: Re: [dpdk-dev] [RFC 00/14] mlx5: support SubFunction
> 
> 10/06/2021 12:33, Ferruh Yigit:
> > On 5/27/2021 2:37 PM, Xueming Li wrote:
> > > SubFunction [1] is a portion of the PCI device, a SF netdev has its
> own
> > > dedicated queues(txq, rxq). A SF shares PCI level resources with other
> > > SFs and/or with its parent PCI function. Auxiliary bus is the
> > > fundamental of SF.
> > >
> > > This patch set introduces SubFunction support for mlx5 PMD driver
> > > including class net, regex, vdpa and compress.
> > >
> >
> > There is already an mdev patch, originated from long ago. Aren't
> subfunctions
> > presented as mdev device? If so can't we use mdev for it?
> 
> No unfortunately that's different.
> mlx5 SF is based on top of auxiliary bus in the kernel/sysfs.
> 

Just out of curiosity:

Does SF use mdev before aux bus is introduced in kernel. I see some history
of it but am not sure: [1] seems SF was base on mdev. [2] seems BlueField
software v2.5 is using mdev for SF. I saw it yesterday and try to figure
out the history. Since you are here, guess you know something 😊

[1] https://patchwork.ozlabs.org/project/netdev/cover/20191107160448.20962-1-parav@mellanox.com/
[2] https://docs.mellanox.com/display/BlueFieldSWv25011176/Mediated+Devices

  reply	other threads:[~2021-06-11  5:14 UTC|newest]

Thread overview: 108+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-27 13:37 Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 01/14] common/mlx5: add common device driver Xueming Li
2021-06-10  9:51   ` Thomas Monjalon
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 00/14] net/mlx5: support Sub-Function Xueming Li
2021-07-21 14:37     ` [dpdk-dev] [PATCH v4 00/16] " Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 01/16] common/mlx5: rename eth device class name Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 02/16] common/mlx5: add common device driver Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 03/16] common/mlx5: move description of PCI sysfs functions Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 04/16] common/mlx5: support auxiliary bus Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 05/16] common/mlx5: get PCI device address from any bus Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 06/16] net/mlx5: remove PCI dependency Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 07/16] net/mlx5: migrate to bus-agnostic common driver Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 08/16] net/mlx5: support SubFunction Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 09/16] net/mlx5: check max Verbs port number Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 10/16] regex/mlx5: migrate to common driver Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 11/16] vdpa/mlx5: define driver name as macro Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 12/16] vdpa/mlx5: remove PCI specifics Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 13/16] vdpa/mlx5: support SubFunction Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 14/16] compress/mlx5: migrate to common driver Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 15/16] crypto/mlx5: " Xueming Li
2021-07-21 14:37       ` [dpdk-dev] [PATCH v4 16/16] common/mlx5: clean up legacy PCI bus driver Xueming Li
2021-07-21 22:24       ` [dpdk-dev] [PATCH v4 00/16] net/mlx5: support Sub-Function Thomas Monjalon
2021-07-22  3:03         ` Xueming(Steven) Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 01/14] common/mlx5: add common device driver Xueming Li
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 00/14] net/mlx5: support Sub-Function Xueming Li
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 01/14] common/mlx5: add common device driver Xueming Li
2021-07-14  5:58       ` Slava Ovsiienko
2021-07-18 18:28       ` Thomas Monjalon
2021-07-19  4:05         ` Xueming(Steven) Li
2021-07-19  2:53       ` [dpdk-dev] [PATCH v3 00/15] net/mlx5: support Sub-Function Xueming Li
2021-07-19  2:53       ` [dpdk-dev] [PATCH v3 01/15] common/mlx5: rename eth device class name Xueming Li
2021-07-19  2:53       ` [dpdk-dev] [PATCH v3 02/15] common/mlx5: add common device driver Xueming Li
2021-07-19  2:53       ` [dpdk-dev] [PATCH v3 03/15] common/mlx5: move description of PCI sysfs functions Xueming Li
2021-07-19  2:53       ` [dpdk-dev] [PATCH v3 04/15] common/mlx5: support auxiliary bus Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 05/15] common/mlx5: get PCI device address from any bus Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 06/15] net/mlx5: remove PCI dependency Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 07/15] net/mlx5: migrate to bus-agnostic common driver Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 08/15] net/mlx5: support SubFunction Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 09/15] net/mlx5: check max Verbs port number Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 10/15] regex/mlx5: migrate to common driver Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 11/15] vdpa/mlx5: define driver name as macro Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 12/15] vdpa/mlx5: remove PCI specifics Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 13/15] vdpa/mlx5: support SubFunction Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 14/15] compress/mlx5: migrate to common driver Xueming Li
2021-07-19  2:54       ` [dpdk-dev] [PATCH v3 15/15] common/mlx5: clean up legacy PCI bus driver Xueming Li
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 02/14] common/mlx5: move description of PCI sysfs functions Xueming Li
2021-07-14  5:58       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 03/14] common/mlx5: support auxiliary bus Xueming Li
2021-07-14  5:58       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 04/14] common/mlx5: get PCI device address from any bus Xueming Li
2021-07-14  5:59       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 05/14] net/mlx5: remove PCI dependency Xueming Li
2021-07-14  5:59       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 06/14] net/mlx5: migrate to bus-agnostic common driver Xueming Li
2021-07-14  5:59       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 07/14] net/mlx5: support SubFunction Xueming Li
2021-07-14  5:59       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 08/14] net/mlx5: check max Verbs port number Xueming Li
2021-07-14  6:00       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 09/14] regex/mlx5: migrate to common driver Xueming Li
2021-07-14  6:00       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 10/14] vdpa/mlx5: define driver name as macro Xueming Li
2021-07-14  6:00       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 11/14] vdpa/mlx5: remove PCI specifics Xueming Li
2021-07-14  6:08       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 12/14] vdpa/mlx5: support SubFunction Xueming Li
2021-07-14  6:01       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 13/14] compress/mlx5: migrate to common driver Xueming Li
2021-07-14  6:01       ` Slava Ovsiienko
2021-07-13 13:14     ` [dpdk-dev] [PATCH v2 14/14] common/mlx5: clean up legacy PCI bus driver Xueming Li
2021-07-14  6:01       ` Slava Ovsiienko
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 02/14] common/mlx5: move description of PCI sysfs functions Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 03/14] common/mlx5: support auxiliary bus Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 04/14] common/mlx5: get PCI device address from any bus Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 05/14] net/mlx5: remove PCI dependency Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 06/14] net/mlx5: migrate to bus-agnostic common driver Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 07/14] net/mlx5: support SubFunction Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 08/14] net/mlx5: check max Verbs port number Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 09/14] regex/mlx5: migrate to common driver Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 10/14] vdpa/mlx5: define driver name as macro Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 11/14] vdpa/mlx5: remove PCI specifics Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 12/14] vdpa/mlx5: support SubFunction Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 13/14] compress/mlx5: migrate to common driver Xueming Li
2021-06-16  4:09   ` [dpdk-dev] [PATCH v1 14/14] common/mlx5: clean up legacy PCI bus driver Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 02/14] common/mlx5: move description of PCI sysfs functions Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 03/14] net/mlx5: remove PCI dependency Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 04/14] net/mlx5: migrate to bus-agnostic common driver Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 05/14] regex/mlx5: migrate to " Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 06/14] compress/mlx5: " Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 07/14] vdpa/mlx5: fix driver name Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 08/14] vdpa/mlx5: remove PCI specifics Xueming Li
2021-05-27 13:37 ` [dpdk-dev] [RFC 09/14] common/mlx5: clean up legacy PCI bus driver Xueming Li
2021-05-27 14:01 ` [dpdk-dev] [RFC 10/14] bus/auxiliary: introduce auxiliary bus Xueming Li
2021-05-27 14:01   ` [dpdk-dev] [RFC 11/14] common/mlx5: support " Xueming Li
2021-05-27 14:02   ` [dpdk-dev] [RFC 12/14] common/mlx5: get PCI device address from any bus Xueming Li
2021-05-27 14:02   ` [dpdk-dev] [RFC 13/14] vdpa/mlx5: support SubFunction Xueming Li
2021-05-27 14:02   ` [dpdk-dev] [RFC 14/14] net/mlx5: " Xueming Li
2021-06-10 10:33 ` [dpdk-dev] [RFC 00/14] mlx5: " Ferruh Yigit
2021-06-10 13:23   ` Thomas Monjalon
2021-06-11  5:14     ` Xia, Chenbo [this message]
2021-06-11  7:54       ` Thomas Monjalon
2021-06-15  2:10         ` Xia, Chenbo
2021-06-15  4:04           ` Parav Pandit
2021-06-15  5:33             ` Xia, Chenbo
2021-06-15  5:43               ` Parav Pandit
2021-06-15 11:19                 ` Xia, Chenbo
2021-06-15 12:47                   ` Parav Pandit
2021-06-15 15:19                     ` Jason Gunthorpe

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