From: Stephen Hemminger <stephen@networkplumber.org>
To: "Carew, Alan" <alan.carew@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH 00/10] igb_uio patches
Date: Tue, 10 Jun 2014 13:47:09 -0700 [thread overview]
Message-ID: <20140610134709.03524b62@nehalam.linuxnetplumber.net> (raw)
In-Reply-To: <0E29434AEE0C3A4180987AB476A6F630593A5F6C@IRSMSX101.ger.corp.intel.com>
On Tue, 10 Jun 2014 19:26:08 +0000
"Carew, Alan" <alan.carew@intel.com> wrote:
> One alternative for us is then to take Neil Horman's idea of scanning /sys/bus/pci/devices/<D:B:D.F>/msi_irqs/
> This gives us at least (MSI | MSI-X) | INT-X, however the Virtio specification mentions MSI-X explicitly for determining the correct offset and might not address the underlying problem my patch set was addressing, I have not tried Virtio with MSI.
MSI doesn't work with virtio. pci_enable_msi() returns error. The device
does not report MSI capability.
next prev parent reply other threads:[~2014-06-10 20:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20140606212644.203613327@networkplumber.org>
2014-06-10 15:55 ` Carew, Alan
2014-06-10 15:59 ` Burakov, Anatoly
[not found] ` <0E29434AEE0C3A4180987AB476A6F630593A5E2D@IRSMSX101.ger.corp.intel.com>
[not found] ` <20140610104035.08d3946a@nehalam.linuxnetplumber.net>
2014-06-10 19:26 ` Carew, Alan
2014-06-10 20:47 ` Stephen Hemminger [this message]
2014-06-11 10:30 ` Neil Horman
2014-06-10 20:49 ` Stephen Hemminger
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=20140610134709.03524b62@nehalam.linuxnetplumber.net \
--to=stephen@networkplumber.org \
--cc=alan.carew@intel.com \
--cc=dev@dpdk.org \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).