From: Jakub Kicinski <jakub.kicinski@netronome.com>
To: "Bshara, Nafea" <nafea@amazon.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
"davem@davemloft.net" <davem@davemloft.net>,
"Jubran, Samih" <sameehj@amazon.com>,
Andrew Lunn <andrew@lunn.ch>,
"Kiyanovski, Arthur" <akiyano@amazon.com>,
"Bshara, Saeed" <saeedb@amazon.com>,
"Tzalik, Guy" <gtzalik@amazon.com>,
"Matushevsky, Alexander" <matua@amazon.com>,
"Liguori, Anthony" <aliguori@amazon.com>,
"Saidi, Ali" <alisaidi@amazon.com>,
"Machulsky, Zorik" <zorik@amazon.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"Wilson, Matt" <msw@amazon.com>,
"Belgazal, Netanel" <netanel@amazon.com>,
"Herrenschmidt, Benjamin" <benh@amazon.com>,
Jiri Pirko <jiri@resnulli.us>
Subject: Re: [PATCH V2 net 00/11] Extending the ena driver to support new features and enhance performance
Date: Thu, 6 Jun 2019 18:14:16 -0700 [thread overview]
Message-ID: <20190606181416.5ce1400d@cakuba.netronome.com> (raw)
In-Reply-To: <9057E288-28BA-4865-B41A-5847EE41D66F@amazon.com>
On Fri, 7 Jun 2019 01:04:14 +0000, Bshara, Nafea wrote:
> On Jun 6, 2019, at 4:43 PM, Jakub Kicinski wrote:
> >>> Okay, then you know which one is which. Are there multiple ENAs but
> >>> one EFA?
> >>
> >> Yes, very possible. Very common
> >>
> >> Typical use case that instances have one ena for control plane, one
> >> for internet facing , and one 100G ena that also have efa capabilities
> >
> > I see, and those are PCI devices.. Some form of platform data would
> > seem like the best fit to me. There is something called:
> >
> > /sys/bus/pci/${dbdf}/label
> >
> > It seems to come from some ACPI table - DSM maybe? I think you can put
> > whatever string you want there 🤔
>
> Acpi path won’t work, much of thee interface are hot attached, using
> native pcie hot plug and acpi won’t be involved.
Perhaps hotplug break DSM, I won't pretend to be an ACPI expert. So you
can find a way to stuff the label into that file from another source.
There's also VPD, or custom PCI caps, but platform data generally seems
like a better idea.
next prev parent reply other threads:[~2019-06-07 1:14 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-03 14:43 [PATCH V2 net 00/11] Extending the ena driver to support new features and enhance performance sameehj
2019-06-03 14:43 ` [PATCH V2 net 01/11] net: ena: add handling of llq max tx burst size sameehj
2019-06-03 14:43 ` [PATCH V2 net 02/11] net: ena: ethtool: add extra properties retrieval via get_priv_flags sameehj
2019-06-03 14:43 ` [PATCH V2 net 03/11] net: ena: replace free_tx/rx_ids union with single free_ids field in ena_ring sameehj
2019-06-03 14:43 ` [PATCH V2 net 04/11] net: ena: arrange ena_probe() function variables in reverse christmas tree sameehj
2019-06-03 14:43 ` [PATCH V2 net 05/11] net: ena: add newline at the end of pr_err prints sameehj
2019-06-03 14:43 ` [PATCH V2 net 06/11] net: ena: documentation: update ena.txt sameehj
2019-06-03 14:43 ` [PATCH V2 net 07/11] net: ena: allow automatic fallback to polling mode sameehj
2019-06-03 14:43 ` [PATCH V2 net 08/11] net: ena: add support for changing max_header_size in LLQ mode sameehj
2019-06-03 14:43 ` [PATCH V2 net 09/11] net: ena: optimise calculations for CQ doorbell sameehj
2019-06-03 14:43 ` [PATCH V2 net 10/11] net: ena: add good checksum counter sameehj
2019-06-03 14:43 ` [PATCH V2 net 11/11] net: ena: use dev_info_once instead of static variable sameehj
2019-06-03 20:30 ` [PATCH V2 net 00/11] Extending the ena driver to support new features and enhance performance David Miller
2019-06-03 21:32 ` Jakub Kicinski
[not found] ` <9da931e72debc868efaac144082f40d379c50f3c.camel@amazon.co.uk>
2019-06-03 23:03 ` Jakub Kicinski
2019-06-04 1:50 ` Andrew Lunn
2019-06-04 2:15 ` Bshara, Nafea
2019-06-04 6:57 ` David Woodhouse
2019-06-04 17:24 ` Jakub Kicinski
2019-06-06 10:23 ` Jubran, Samih
2019-06-06 17:16 ` Jakub Kicinski
2019-06-06 21:40 ` Bshara, Nafea
2019-06-06 22:04 ` Jakub Kicinski
2019-06-06 22:57 ` Bshara, Nafea
2019-06-06 23:07 ` Jakub Kicinski
2019-06-06 23:21 ` Bshara, Nafea
2019-06-06 23:42 ` Jakub Kicinski
2019-06-07 1:04 ` Bshara, Nafea
2019-06-07 1:14 ` Jakub Kicinski [this message]
2019-06-07 21:27 ` Jakub Kicinski
2019-06-07 21:34 ` Bshara, Nafea
2019-06-07 21:54 ` Jakub Kicinski
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