From: Vladimir Ratnikov <vratnikov@netgate.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: hkalra@marvell.com, dev@dpdk.org,
Junfeng Guo <junfeng.guo@intel.com>,
Simei Su <simei.su@intel.com>,
qi.z.zhang@intel.com, Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH] eal/interrupts: Allow UIO interrupts when using igb_uio
Date: Tue, 4 Jul 2023 20:19:05 +0200 [thread overview]
Message-ID: <CABxizg65PV+PHW_xNa9Nhu2QCC9jGaM0JF_CkCXoH6g-E+MEeg@mail.gmail.com> (raw)
In-Reply-To: <20230704085530.1cf47bc7@hermes.local>
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On systems with I225 interfaces it works in interrupt mode(rx), so not only
LSE interrupts are supported.
I could try add rte_intr_cap_single functionality and recheck it twice(if
several interfaces works in rx_mode=interrupt)
But actually it worked with changes above(CPU utilization close to the
zero, data passes through the interface etc)
On Tue, Jul 4, 2023 at 5:55 PM Stephen Hemminger <stephen@networkplumber.org>
wrote:
> On Tue, 4 Jul 2023 12:45:54 +0200
> Vladimir Ratnikov <vratnikov@netgate.com> wrote:
>
> > Sorry for a long reply, sure.
> >
> > Stephen,
> > am I right that the most concern is about a place where interrupt
> > capabilities check appears for non MSI-X support?
> > What if having dedicated rte_intr_cap_single analog when there's no
> support
> > for MSI-X and just do the same(check capability, allocate interrupt
> vector
> > etc) ?
> >
> >
> > Regards,
> > -Vladimir
>
> With single interrupt, only link state interrupt is possible.
> Does that work with igb_uio? It should, if not then yes
> rte_intr_cap_single
> or something like that is needed.
>
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next prev parent reply other threads:[~2023-07-04 18:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-14 13:40 Vladimir Ratnikov
2023-06-14 16:46 ` Stephen Hemminger
2023-07-03 15:32 ` Thomas Monjalon
2023-07-04 10:45 ` Vladimir Ratnikov
2023-07-04 15:55 ` Stephen Hemminger
2023-07-04 18:19 ` Vladimir Ratnikov [this message]
2023-07-05 23:27 ` Stephen Hemminger
2023-10-31 17:17 ` Stephen Hemminger
2023-07-03 7:19 ` [EXT] " Harman Kalra
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