On 5/7/2015 3:45 PM, Jason Gunthorpe wrote:
On Thu, May 07, 2015 at 09:52:24AM -0500, Steve Wise wrote:
For listening endpoints bound to the wildcard address, we need to pass
the wildcard address mapping to iwpm_get_remote_info() instead of the
mapped address of the new child connection.
It would be nice to see a discussion about what bug this fixes in the
commit message...

So we can answer the question: Does this need to go to -stable?


Without this fix, and with iwarp port mapping enabled, each iw_cxgb4 connection that is spawned from a listening endpoint bound to the wildcard address, will generate an annoying dmesg entry about failing to find the remote address mapping info, and the connection state displayed in debugfs under /sys/kernel/debug/iw_cxgb4/<pci-slot-no>/eps will not have the peer's address/port mapping info. The connection still works though.

This does not need to hit stable because the remote_info logic was just added in 4.1 with:
---
commit 5b6b8fe64053b2649660ded2f3c5be25ebddbfdb
Author: Steve Wise <[email protected]>
Date:   Tue Apr 21 16:28:41 2015 -0400

    RDMA/cxgb4: Report the actual address of the remote connecting peer
---


Doug, shall I resend the patch with an updated comment?

Steve.

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