[ovs-dev] [PATCH v2 09/12] netdev-dpdk: Minor cleanup of netdev_dpdk_send__.

[Bhanuprakash Bodireddy]

The variable 'cnt' is initialized and reused in multiple function calls
inside netdev_dpdk_send__() and is confusing sometimes. Instead introduce
'batch_cnt' to hold the original packet count and 'tx_cnt' to store
the final packet count resulting after filtering and qos operations.

Finally 'tx_cnt' packets gets transmitted on the respective 'qid'.

Signed-off-by: Bhanuprakash Bodireddy <bhanuprakash.bodireddy at intel.com>
---
 lib/netdev-dpdk.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
index 60887e5..3ff79c1 100644
--- a/lib/netdev-dpdk.c
+++ b/lib/netdev-dpdk.c
@@ -1938,17 +1938,17 @@ netdev_dpdk_send__(struct netdev_dpdk *dev, int qid,
         dpdk_do_tx_copy(netdev, qid, batch);
         dp_packet_delete_batch(batch, may_steal);
     } else {
-        int dropped;
-        int cnt = batch->count;
+        int tx_cnt, dropped;
+        int batch_cnt = dp_packet_batch_size(batch);
         struct rte_mbuf **pkts = (struct rte_mbuf **) batch->packets;
 
         dp_packet_batch_apply_cutlen(batch);
 
-        cnt = netdev_dpdk_filter_packet_len(dev, pkts, cnt);
-        cnt = netdev_dpdk_qos_run(dev, pkts, cnt, true);
-        dropped = batch->count - cnt;
+        tx_cnt = netdev_dpdk_filter_packet_len(dev, pkts, batch_cnt);
+        tx_cnt = netdev_dpdk_qos_run(dev, pkts, tx_cnt, true);
+        dropped = batch_cnt - tx_cnt;
 
-        dropped += netdev_dpdk_eth_tx_burst(dev, qid, pkts, cnt);
+        dropped += netdev_dpdk_eth_tx_burst(dev, qid, pkts, tx_cnt);
 
         if (OVS_UNLIKELY(dropped)) {
             rte_spinlock_lock(&dev->stats_lock);
-- 
2.4.11