[DPDK/ethdev Bug 1675] Shutting down the link on broadcom bnxt BCM57508 100GbE doesn't shutdown link on peer side

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=1675

            Bug ID: 1675
           Summary: Shutting down the link on broadcom bnxt BCM57508
                    100GbE doesn't shutdown link on peer side
           Product: DPDK
           Version: 21.08
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: ethdev
          Assignee: dev at dpdk.org
          Reporter: saurin.suthar at trellix.com
  Target Milestone: ---

We are using BCM57508 100GbE 2-port NIC AOC-A100G-B2CM
https://www.supermicro.com/en/products/accessories/addon/AOC-A100G-b2CM.php

Running alma linux 5.15.133 kernel with dpdk v21.08. Both 100G ports are
working normal and able to tx/rx. But when I bring the link down using
"ifconfig ethx down" the link status shows it is down. But on that interface,
packets are still coming, also peer side link is not going down. Is there a
patch available for this? If I bring the link down from peer side, link goes
down on my machine side.

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