Re: [PATCH v2] ixgbe: fix link down issue on x550em_x
From: Bruce Richardson <hidden>
Date: 2016-02-24 14:26:59
On Mon, Feb 01, 2016 at 04:42:39PM +0800, Wenzhuo Lu wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- 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