[ofa-general] [PATCH] ipoib: refresh path when remote lid changes

Jason Gunthorpe jgunthorpe at obsidianresearch.com
Mon Jul 27 12:29:38 PDT 2009


On Mon, Jul 27, 2009 at 08:11:42PM +0300, Yossi Etigin wrote:
>   If the LID of an ipoib neighbour changes without a SM event on the local node,
> IPoIB will keep caching the invalid path until the device is flushed. The patch
> below will remove the path for every incoming ARP packet where the sender hardware
> address does not match the cached lid.

This assumes a LMC=0 fabric.. Otherwise there is no guarentee that the
slid the sender uses is the same one you are using to send.

Jason



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