[dpdk-dev] [PATCH v2] ixgbe: fix link down issue on x550em_x
Bruce Richardson
bruce.richardson at intel.com
Wed Feb 24 15:26:52 CET 2016
On Mon, Feb 01, 2016 at 04:42:39PM +0800, Wenzhuo Lu wrote:
> Normally the auto-negotiation is supported by FW. But on
> X550EM_X_10G_T it's not supported by FW. As the port of
> X550EM_X_10G_T is 10G. If we connect the port with a peer
> which is 1G. The link is always down.
> We have to supprted auto-neg by SW to avoid such link down
> issue.
>
> Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
> ---
> doc/guides/rel_notes/release_2_3.rst | 6 ++++++
> drivers/net/ixgbe/ixgbe_ethdev.c | 38 ++++++++++++++++++++++++++++++++++++
> drivers/net/ixgbe/ixgbe_ethdev.h | 1 +
> 3 files changed, 45 insertions(+)
>
> diff --git a/doc/guides/rel_notes/release_2_3.rst b/doc/guides/rel_notes/release_2_3.rst
> index 99de186..a8d34d1 100644
> --- a/doc/guides/rel_notes/release_2_3.rst
> +++ b/doc/guides/rel_notes/release_2_3.rst
> @@ -15,6 +15,12 @@ EAL
> Drivers
> ~~~~~~~
>
> +* **ixgbe: fix link down issue on X550EM_X.**
> + Normally the auto-negotiation is supported by FW. SW need not care about
> + that. But on x550em_x, FW doesn't support auto-neg. As the ports of x550em_x
> + are 10G, if we connect the port will a peer which is 1G, the link will always
> + be donw on x550em_x.
> + We will support auto-neg by SW to avoid this link down issue.
>
Couple of typos present in the text above.
/Bruce
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