DPDK patches and discussions
 help / color / mirror / Atom feed
From: Bruce Richardson <bruce.richardson@intel.com>
To: Sarosh Arif <sarosh.arif@emumba.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] unable to bind to vfio-pci
Date: Thu, 17 Sep 2020 10:17:23 +0100
Message-ID: <20200917091723.GD1568@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <CABoZmYMNfNAEQ_=-9JWZKPazx+RkeTgs0A_F=cz7OYKd8XQNsA@mail.gmail.com>

On Thu, Sep 17, 2020 at 11:52:58AM +0500, Sarosh Arif wrote:
> I have been trying to bind to vfio-pci using usertools/dpdk-devbind.py
> but am unable to do so. The reason behind this is that I am unable to
> write in /sys/bus/pci/drivers/vfio-pci/bind. Upon searching solutions
> I tried a couple of things such as setting iommu=pt and intel_iommu=on
> and ensured vt-d is enabled.
> Along with this I have made sure that the vfio-pci module is correctly
> loaded. I have also tried
> 
> chmod 666 /sys/bus/pci/drivers/vfio-pci/bind
> 
> So that I have permissions to write in this file.
> 
> The error I get when I use usertools/dpdk-devbind.py to bind is this:
> Error: bind failed for 0000:b7:00.1 - Cannot bind to driver vfio-pci
> 
> The details of 0000:b7:00.1 are as follows:
> Ethernet Connection X722 for 10GBASE-T 37d2' if=eno6 drv=i40e
> 
> I have also unbinded The pci bridge to which 0000:b7:00.1 was connected.
> 
> What more can be done to resolve this?
>
Since you describe changing permissions on the "bind" file, are you trying
to run dpdk-devbind.py as a non-root user? Does it work as root? 

  parent reply	other threads:[~2020-09-17  9:17 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-17  6:52 Sarosh Arif
2020-09-17  7:31 ` Dybkowski, AdamX
2020-09-17  8:39   ` Sarosh Arif
2020-09-17  9:17 ` Bruce Richardson [this message]
2020-09-17  9:21   ` Sarosh Arif
2020-09-17  9:35     ` Burakov, Anatoly
2020-09-21 11:54       ` Sarosh Arif
2020-09-21 11:58         ` Burakov, Anatoly
2020-09-17 10:22     ` Bruce Richardson
2020-09-17 11:49       ` Burakov, Anatoly
2020-09-21 11:10         ` Sarosh Arif
2020-09-21 11:36           ` Burakov, Anatoly

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200917091723.GD1568@bricha3-MOBL.ger.corp.intel.com \
    --to=bruce.richardson@intel.com \
    --cc=dev@dpdk.org \
    --cc=sarosh.arif@emumba.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git