[ovs-dev] [PATCH v6 2/5] netdev-dpdk: skip init for existing mempools.

antonio.fischetti at intel.com antonio.fischetti at intel.com
Mon Oct 16 13:15:13 UTC 2017


Skip initialization of mempool packet areas if this was already
done in a previous call to dpdk_mp_create.

CC: Mark B Kavanagh <mark.b.kavanagh at intel.com>
CC: Darrell Ball <dlu998 at gmail.com>
CC: Ciara Loftus <ciara.loftus at intel.com>
CC: Kevin Traynor <ktraynor at redhat.com>
CC: Aaron Conole <aconole at redhat.com>
Signed-off-by: Antonio Fischetti <antonio.fischetti at intel.com>
---
 lib/netdev-dpdk.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
index 7f2d7ed..07c438a 100644
--- a/lib/netdev-dpdk.c
+++ b/lib/netdev-dpdk.c
@@ -550,6 +550,11 @@ dpdk_mp_create(struct netdev_dpdk *dev, int mtu, bool *mp_exists)
         if (dmp->mp) {
             VLOG_DBG("Allocated \"%s\" mempool with %u mbufs", mp_name,
                      dmp->mp_size);
+            /* rte_pktmbuf_pool_create has done some initialization of the
+             * rte_mbuf part of each dp_packet. Some OvS specific fields
+             * of the packet still need to be initialized by
+             * ovs_rte_pktmbuf_init. */
+            rte_mempool_obj_iter(dmp->mp, ovs_rte_pktmbuf_init, NULL);
         } else if (rte_errno == EEXIST) {
             /* A mempool with the same name already exists.  We just
              * retrieve its pointer to be returned to the caller. */
@@ -566,11 +571,6 @@ dpdk_mp_create(struct netdev_dpdk *dev, int mtu, bool *mp_exists)
         }
         free(mp_name);
         if (dmp->mp) {
-            /* rte_pktmbuf_pool_create has done some initialization of the
-             * rte_mbuf part of each dp_packet, while ovs_rte_pktmbuf_init
-             * initializes some OVS specific fields of dp_packet.
-             */
-            rte_mempool_obj_iter(dmp->mp, ovs_rte_pktmbuf_init, NULL);
             return dmp;
         }
     } while (!(*mp_exists) &&
-- 
2.4.11



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