From: Jiri Pirko <jiri@resnulli.us>
To: Parav Pandit <parav@mellanox.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>,
"davem@davemloft.net" <davem@davemloft.net>,
"oss-drivers@netronome.com" <oss-drivers@netronome.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [PATCH net-next 2/8] devlink: add PF and VF port flavours
Date: Mon, 4 Mar 2019 08:30:18 +0100 [thread overview]
Message-ID: <20190304073018.GT2314@nanopsycho> (raw)
In-Reply-To: <VI1PR0501MB227146735C5C858D42A2C931D1710@VI1PR0501MB2271.eurprd05.prod.outlook.com>
Mon, Mar 04, 2019 at 05:59:04AM CET, parav@mellanox.com wrote:
>
>
>> -----Original Message-----
>> From: netdev-owner@vger.kernel.org <netdev-owner@vger.kernel.org> On
>> Behalf Of Jiri Pirko
>> Sent: Wednesday, February 27, 2019 6:17 AM
>> To: Jakub Kicinski <jakub.kicinski@netronome.com>
>> Cc: davem@davemloft.net; oss-drivers@netronome.com;
>> netdev@vger.kernel.org
>> Subject: Re: [PATCH net-next 2/8] devlink: add PF and VF port flavours
>>
>> Tue, Feb 26, 2019 at 07:24:30PM CET, jakub.kicinski@netronome.com wrote:
>> >Current port flavours cover simple switches and DSA. Add PF and VF
>> >flavours to cover "switchdev" SR-IOV NICs.
>> >
>> >Example devlink user space output:
>> >
>> >$ devlink port
>> >pci/0000:82:00.0/0: type eth netdev p4p1 flavour physical
>> >pci/0000:82:00.0/10000: type eth netdev eth0 flavour pcie_pf pf 0
>> >pci/0000:82:00.0/10001: type eth netdev eth1 flavour pcie_vf pf 0 vf 0
>> >pci/0000:82:00.0/10002: type eth netdev eth2 flavour pcie_vf pf 0 vf 1
>>
>A given port is of its parent device.
>In current scenario, its PF or VF.
>Hence it should be device attribute and not a port attribute.
I think that this works. You have VF_rep ports, PF_rep ports and
PHYSICAL ports. In mlxsw for example, there are only PHYSICAL ports.
In sr-iov world, there is also a PHYSICAL port on the eswitch. The
others are either facing PF of VF. Looks accurate. I don't see any need
for "devlink dev" flavour.
>So devlink dev show command have to show what device flavour is.
>Is it well known PCI VF or PF or something else.
>It will show subdev device attribute and its parent PCI (PF/VF) devlink device.
>So we should have device flovour as PCI_PF or PCI_VF or SUBDEV.
>
>Again VF number showcasing here is very restrictive model.
>Every PF/VF/Subdev represents its own 'port' and it is connected to eswitch 'port'.
>Instead of showing VF here, it must be this 'port' or 'link' number that gives right view.
>Which netdev represents which VF is already linked in the VF rep-netdev sysfs property.
I think you confuse the eswtich ports (in Jakub's output it's them) and
the actual VF.
>
>So flavour should be something like 'hostport' and when port is registered for the eswitch side it should be 'switchport'.
>With this there is very clear picture of which hostport is connected to which eswitch port.
>Just like how we see in the physical world.
>
next prev parent reply other threads:[~2019-03-04 7:40 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-26 18:24 [PATCH net-next 0/8] devlink: add PF and VF port flavours Jakub Kicinski
2019-02-26 18:24 ` [PATCH net-next 1/8] nfp: split devlink port init from registration Jakub Kicinski
2019-02-26 18:24 ` [PATCH net-next 2/8] devlink: add PF and VF port flavours Jakub Kicinski
2019-02-27 12:16 ` Jiri Pirko
2019-03-04 4:59 ` Parav Pandit
2019-03-04 7:30 ` Jiri Pirko [this message]
2019-03-20 17:29 ` Abodunrin, Akeem G
2019-03-21 12:26 ` Jiri Pirko
2019-02-27 12:23 ` Jiri Pirko
2019-02-27 12:41 ` Jiri Pirko
2019-02-27 17:23 ` Jakub Kicinski
2019-02-27 20:17 ` Jiri Pirko
2019-02-27 22:42 ` Jakub Kicinski
2019-02-28 8:44 ` Jiri Pirko
2019-02-28 16:08 ` Jakub Kicinski
2019-02-28 16:24 ` David Ahern
2019-02-26 18:24 ` [PATCH net-next 3/8] nfp: register devlink ports of all reprs Jakub Kicinski
2019-02-26 18:24 ` [PATCH net-next 4/8] devlink: allow subports on devlink PCI ports Jakub Kicinski
2019-02-27 12:37 ` Jiri Pirko
2019-02-27 18:30 ` Jakub Kicinski
2019-02-28 8:56 ` Jiri Pirko
2019-02-28 13:32 ` Jiri Pirko
2019-02-28 16:24 ` Jakub Kicinski
2019-03-01 7:25 ` Jiri Pirko
2019-03-01 16:04 ` Jakub Kicinski
2019-03-01 16:20 ` Jiri Pirko
2019-03-04 16:15 ` Jason Gunthorpe
2019-03-05 1:03 ` Jakub Kicinski
2019-03-05 1:30 ` Jason Gunthorpe
2019-03-05 2:11 ` Jakub Kicinski
2019-03-05 22:11 ` Jason Gunthorpe
2019-03-04 5:00 ` Parav Pandit
2019-02-26 18:24 ` [PATCH net-next 5/8] nfp: switch to devlink_port_get_phys_port_name() Jakub Kicinski
2019-02-26 18:24 ` [PATCH net-next 6/8] devlink: introduce port's peer netdevs Jakub Kicinski
2019-02-27 13:08 ` Jiri Pirko
2019-02-27 18:47 ` Jakub Kicinski
2019-02-28 9:00 ` Jiri Pirko
2019-02-28 16:36 ` Jakub Kicinski
2019-03-01 7:37 ` Jiri Pirko
2019-03-01 16:05 ` Jakub Kicinski
2019-03-04 5:07 ` Parav Pandit
2019-02-26 18:24 ` [PATCH net-next 7/8] nfp: expose PF " Jakub Kicinski
2019-02-26 18:24 ` [PATCH net-next 8/8] devlink: fix kdoc Jakub Kicinski
2019-02-27 13:13 ` Jiri Pirko
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