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Subject: [dpdk-dev] [Bug 52] Bonding PMD may fail to accept new slaves in
 certain conditions
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https://dpdk.org/tracker/show_bug.cgi?id=3D52

            Bug ID: 52
           Summary: Bonding PMD may fail to accept new slaves in certain
                    conditions
           Product: DPDK
           Version: 18.05
          Hardware: All
                OS: All
            Status: CONFIRMED
          Severity: minor
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: radu.nicolau@intel.com
  Target Milestone: ---

When using testpmd to test bonding, the following sequence of commands will
fail as described:

testpmd> port stop all
testpmd> create bonded device 4 0
testpmd> add bonding slave 0 2
testpmd> add bonding slave 1 2

__eth_bond_slave_add_lock_free(352) - Invalid link properties for slave 1 in
bonding mode 4
Failed to add slave 1 to master port =3D 2


Root cause is a mismatch in port link status caused by testpmd implementati=
on
that does not re-check all ports, but stops at the first port that shows li=
nk
down.

To work around the issue insert "show port info all" command after "port st=
op
all" if using testpmd, or make sure that the application either calls
rte_eth_link_get on all ports that will be bound, or on none of them.

Patch addressing the issue: https://dpdk.org/dev/patchwork/patch/39567/

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