[dpdk-dev] [dpdk-dev, v2] net/e1000: always enable receive and transmit

Wenzhuo Lu wenzhuo.lu at intel.com
Thu Jan 11 09:22:54 CET 2018


Hi,

> Date: Thu, 19 Oct 2017 23:23:39 -0400
>
> From: Chas Williams <chas3 at 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 at att.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu at intel.com>


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