From: Wenzhuo Lu <wenzhuo.lu@intel.com>
To: chas3@att.com, dev@dpdk.org
Subject: Re: [dpdk-dev] [dpdk-dev, v2] net/e1000: always enable receive and transmit
Date: Thu, 11 Jan 2018 16:22:54 +0800 [thread overview]
Message-ID: <1515658974-63940-1-git-send-email-wenzhuo.lu@intel.com> (raw)
In-Reply-To: <20171020032339.24079-1-3chas3@gmail.com>
Hi,
> Date: Thu, 19 Oct 2017 23:23:39 -0400
>
> From: Chas Williams <chas3@att.com>
>
> The transmit and receive controller state machines are only enabled after
> receiving an interrupt and the link status is now valid. If an adapter
> is being used in conjunction with NC-SI, network controller sideband
> interface, the adapter may never get a link state change interrupt since
> the adapter's PHY is always link up and never changes state.
>
> To fix this, always enable and disable the transmit and receive with
> .dev_start and .dev_stop. This is a better match for what is typically
> done with the other PMD's. Since we may never get an interrupt to check
> the link state, we also poll once at the end of .dev_start to get the
> current link status.
>
> Signed-off-by: Chas Williams <chas3@att.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
next prev parent reply other threads:[~2018-01-11 8:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-17 19:18 [dpdk-dev] [PATCH] " Charles (Chas) Williams
2017-07-18 11:50 ` Ferruh Yigit
2017-10-20 3:23 ` [dpdk-dev] [PATCH v2] " Chas Williams
2018-01-11 8:22 ` Wenzhuo Lu [this message]
2018-01-13 6:33 ` [dpdk-dev] [dpdk-dev, " Zhang, Helin
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