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dpif-netdev: Assign PMD for failed pinned rxqs.

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Previously, if pmd-rxq-affinity was used to pin an rxq to
a core that was not in pmd-cpu-mask the rxq was not polled
for and the user received a warning. This meant that no traffic
would be received from that rxq.

Now that pinned and non-pinned rxqs are assigned to PMDs in
a common call to rxq scheduling, if an invalid core is
selected in pmd-rxq-affinity the rxq can be assigned an
available PMD (if any).

A warning will still be logged as the requested core could
not be used.

Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
Acked-by: Sunil Pai G <sunil.pai.g@intel.com>
Acked-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>
This commit is contained in:
Kevin Traynor
2021-07-16 17:02:08 +01:00
committed by Ian Stokes
parent 0efefc4f98
commit 4fb54652e0
3 changed files with 11 additions and 5 deletions
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5
lib/dpif-netdev.c
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@@ -5205,11 +5205,14 @@ sched_numa_list_schedule(struct sched_numa_list *numa_list,
VLOG(level == VLL_DBG ? VLL_DBG : VLL_WARN,
"Core %2u cannot be pinned with "
"port \'%s\' rx queue %d. Use pmd-cpu-mask to "
"enable a pmd on core %u.",
"enable a pmd on core %u. An alternative core "
"will be assigned.",
rxq->core_id,
netdev_rxq_get_name(rxq->rx),
netdev_rxq_get_queue_id(rxq->rx),
rxq->core_id);
rxqs = xrealloc(rxqs, (n_rxqs + 1) * sizeof *rxqs);
rxqs[n_rxqs++] = rxq;
continue;
}
/* Mark PMD as isolated if not done already. */