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From: "Jan Mędala" <jan@semihalf.com>
To: Thomas Monjalon <thomas.monjalon@6wind.com>
Cc: dev@dpdk.org, matua@amazon.com
Subject: Re: [dpdk-dev] [PATCH 0/4] DPDK polling-mode driver for Amazon Elastic Network Adapters (ENA)
Date: Fri, 29 Jan 2016 16:42:05 +0100	[thread overview]
Message-ID: <CANw_3ZdgKWicPLNLLN6CBwRkFdLg=T2y3QQxX8kr-FCmD_57ug@mail.gmail.com> (raw)
In-Reply-To: <4623588.IlxFVFWOgI@xps13>

Hello Thomas,

2016-01-28 16:40 GMT+01:00 Thomas Monjalon <thomas.monjalon@6wind.com>:

> >  lib/librte_eal/linuxapp/ena_uio/ena_uio_driver.c   |  276 +++
>
> Sorry the kernel module party is over.
> One day, igb_uio will be removed.
> I suggest to make a first version without interrupt support
> and work with Linux community to fix your issues.
>

Rationale to deliver UIO kernel module is based on lack of legacy INTx
interrupts in ENA device. It's operating only on MSI-X.
Currently we do not implement interrupt support (yet) in PMD, but hardware
was unable to operate under uio_generic_pci driver - probe is failing.
It might be possible to use igb_uio kmod with ENA and I will do necessary
investigation+experiments to prove that.

Could you elaborate on the topic of kernel module removal - how would it
look like, is there going to be generic PCI driver dedicated for MSI-X
devices?

Thanks,
Jan

  reply	other threads:[~2016-01-29 15:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-28 15:20 Jan Medala
2016-01-28 15:20 ` [dpdk-dev] [PATCH 1/4] Amazon ENA UIO driver Jan Medala
2016-01-28 15:20 ` [dpdk-dev] [PATCH 2/4] Amazon ENA communication layer Jan Medala
2016-01-28 15:20 ` [dpdk-dev] [PATCH 3/4] Amazon ENA communication layer for DPDK platform Jan Medala
2016-01-28 15:20 ` [dpdk-dev] [PATCH 4/4] DPDK polling-mode driver for Amazon Elastic Network Adapters (ENA) Jan Medala
2016-01-28 15:40 ` [dpdk-dev] [PATCH 0/4] " Thomas Monjalon
2016-01-29 15:42   ` Jan Mędala [this message]
2016-01-29 16:04     ` Thomas Monjalon
2016-01-30 16:39       ` Matushevsky, Alexander

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