From: Stephen Hemminger <stephen@networkplumber.org>
To: Mats Liljegren <liljegren.mats2@gmail.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] RFC: Introduce host_ifname field to struct rte_eth_dev_info
Date: Thu, 2 Jan 2014 08:36:16 -0800 [thread overview]
Message-ID: <20140102083616.2872c24a@nehalam.linuxnetplumber.net> (raw)
In-Reply-To: <CA+xJJ1-F5Xi6dx8o1Dy12a_5Kz0_DVr=TSJVfxmQA1OkJFCG2A@mail.gmail.com>
On Wed, 4 Dec 2013 16:39:05 +0100
Mats Liljegren <liljegren.mats2@gmail.com> wrote:
> I played around with pcap to compare it against "pure" DPDK user-space
> driver. I realized that interrupt affinity suddenly becomes important,
> since it uses interrupts. So I needed a way to set it.
>
> The only place where I know which core will handle which pcap
> interface, is within my DPDK application. But DPDK did not save the
> host interface name anywhere, so it was nowhere to be found.
>
> I created a patch for this, found below. Is this something that could
> be upstreamed?
>
> Best regards
> Mats Liljegren
interface name can be changed while application is running not sure
if you want to cache it! Ifindex can't change.
Also, if you use sysfs you can get/set irq_affinity based on PCI address.
prev parent reply other threads:[~2014-01-02 16:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-04 15:39 Mats Liljegren
2014-01-02 13:51 ` Thomas Monjalon
2014-01-02 16:36 ` Stephen Hemminger [this message]
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