From: Vincent JARDIN <vincent.jardin@6wind.com>
To: Avi Kivity <avi@scylladb.com>, "Michael S. Tsirkin" <mst@redhat.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] Having troubles binding an SR-IOV VF to uio_pci_generic on Amazon instance
Date: Thu, 01 Oct 2015 11:42:23 +0200 [thread overview]
Message-ID: <560CFFFF.4000601@6wind.com> (raw)
In-Reply-To: <560CFB66.5050904@scylladb.com>
On 01/10/2015 11:22, Avi Kivity wrote:
>> As far as I could see, without this kind of motivation, people do not
>> even want to try.
>
> You are mistaken. The problem is a lot harder than you think.
>
> People didn't go and write userspace drivers because they were lazy.
> They wrote them because there was no other way.
I disagree, it is possible to write a 'partial' userspace driver.
Here it is an example:
http://dpdk.org/browse/dpdk/tree/drivers/net/mlx4
It benefits of the kernel's capabilities while the userland manages only
the IOs.
There were some tentative to get it for other (older) drivers, named
'bifurcated drivers', but it is stalled.
best regards,
Vincent
next prev parent reply other threads:[~2015-10-01 9:42 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-27 7:05 Vlad Zolotarov
2015-09-27 9:43 ` Michael S. Tsirkin
2015-09-27 10:50 ` Vladislav Zolotarov
2015-09-29 16:41 ` Vlad Zolotarov
2015-09-29 20:54 ` Michael S. Tsirkin
2015-09-29 21:46 ` Stephen Hemminger
2015-09-29 21:49 ` Michael S. Tsirkin
2015-09-30 10:37 ` Vlad Zolotarov
2015-09-30 10:58 ` Michael S. Tsirkin
2015-09-30 11:26 ` Vlad Zolotarov
[not found] ` <20150930143927-mutt-send-email-mst@redhat.com>
2015-09-30 11:53 ` Vlad Zolotarov
2015-09-30 12:03 ` Michael S. Tsirkin
2015-09-30 12:16 ` Vlad Zolotarov
2015-09-30 12:27 ` Michael S. Tsirkin
2015-09-30 12:50 ` Vlad Zolotarov
2015-09-30 15:26 ` Michael S. Tsirkin
2015-09-30 18:15 ` Vlad Zolotarov
2015-09-30 18:55 ` Michael S. Tsirkin
2015-09-30 19:06 ` Vlad Zolotarov
2015-09-30 19:10 ` Vlad Zolotarov
2015-09-30 19:11 ` Vlad Zolotarov
2015-09-30 19:39 ` Michael S. Tsirkin
2015-09-30 20:09 ` Vlad Zolotarov
2015-09-30 21:36 ` Stephen Hemminger
2015-09-30 21:53 ` Michael S. Tsirkin
2015-09-30 22:20 ` Vlad Zolotarov
2015-10-01 8:00 ` Vlad Zolotarov
2015-10-01 14:47 ` Stephen Hemminger
2015-10-01 15:03 ` Vlad Zolotarov
2015-09-30 13:05 ` Avi Kivity
2015-09-30 14:39 ` Michael S. Tsirkin
2015-09-30 14:53 ` Avi Kivity
2015-09-30 15:21 ` Michael S. Tsirkin
2015-09-30 15:36 ` Avi Kivity
2015-09-30 20:40 ` Michael S. Tsirkin
2015-09-30 21:00 ` Avi Kivity
2015-10-01 8:44 ` Michael S. Tsirkin
2015-10-01 8:46 ` Vlad Zolotarov
2015-10-01 8:52 ` Avi Kivity
2015-10-01 9:15 ` Michael S. Tsirkin
2015-10-01 9:22 ` Avi Kivity
2015-10-01 9:42 ` Michael S. Tsirkin
2015-10-01 9:53 ` Avi Kivity
2015-10-01 10:17 ` Michael S. Tsirkin
2015-10-01 10:24 ` Avi Kivity
2015-10-01 10:25 ` Avi Kivity
2015-10-01 10:44 ` Michael S. Tsirkin
2015-10-01 10:55 ` Avi Kivity
2015-10-01 21:17 ` Alexander Duyck
2015-10-02 13:50 ` Michael S. Tsirkin
2015-10-01 9:42 ` Vincent JARDIN [this message]
2015-10-01 9:43 ` Avi Kivity
2015-10-01 9:48 ` Vincent JARDIN
2015-10-01 9:54 ` Avi Kivity
2015-10-01 10:14 ` Michael S. Tsirkin
2015-10-01 10:23 ` Avi Kivity
2015-10-01 14:55 ` Stephen Hemminger
2015-10-01 15:49 ` Michael S. Tsirkin
2015-10-01 14:54 ` Stephen Hemminger
2015-10-01 9:55 ` Michael S. Tsirkin
2015-10-01 9:59 ` Avi Kivity
2015-10-01 10:38 ` Michael S. Tsirkin
2015-10-01 10:50 ` Avi Kivity
2015-10-01 11:09 ` Michael S. Tsirkin
2015-10-01 11:20 ` Avi Kivity
2015-10-01 11:27 ` Michael S. Tsirkin
2015-10-01 11:32 ` Avi Kivity
2015-10-01 15:01 ` Stephen Hemminger
2015-10-01 15:08 ` Avi Kivity
2015-10-01 15:46 ` Michael S. Tsirkin
2015-10-01 15:11 ` Michael S. Tsirkin
2015-10-01 15:19 ` Avi Kivity
2015-10-01 15:40 ` Michael S. Tsirkin
2015-10-01 11:31 ` Michael S. Tsirkin
2015-10-01 11:34 ` Avi Kivity
2015-10-01 11:08 ` Bruce Richardson
2015-10-01 11:23 ` Michael S. Tsirkin
2015-10-01 12:07 ` Bruce Richardson
2015-10-01 13:14 ` Michael S. Tsirkin
2015-10-01 16:04 ` Michael S. Tsirkin
2015-10-01 21:02 ` Alexander Duyck
2015-10-02 14:00 ` Michael S. Tsirkin
2015-10-02 14:07 ` Bruce Richardson
2015-10-04 9:07 ` Michael S. Tsirkin
2015-10-02 15:56 ` Gleb Natapov
2015-10-02 16:57 ` Alexander Duyck
2015-10-01 9:15 ` Avi Kivity
2015-10-01 9:29 ` Michael S. Tsirkin
2015-10-01 9:38 ` Avi Kivity
2015-10-01 10:07 ` Michael S. Tsirkin
2015-10-01 10:11 ` Avi Kivity
2015-10-01 9:16 ` Michael S. Tsirkin
2015-09-30 17:28 ` Stephen Hemminger
2015-09-30 17:39 ` Michael S. Tsirkin
2015-09-30 17:43 ` Stephen Hemminger
2015-09-30 18:50 ` Michael S. Tsirkin
2015-09-30 20:00 ` Gleb Natapov
2015-09-30 20:36 ` Michael S. Tsirkin
2015-10-01 5:04 ` Gleb Natapov
2015-09-30 17:44 ` Gleb Natapov
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