net/vhost: free consumed Tx buffers on demand

[dpdk.git] / drivers / net / vhost / rte_eth_vhost.c

diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index e98cffd..abe91c7 100644 (file)
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -959,6 +959,16 @@ eth_queue_release(void *q)
        rte_free(q);
 }
 
+static int
+eth_tx_done_cleanup(void *txq __rte_unused, uint32_t free_cnt __rte_unused)
+{
+       /*
+        * vHost does not hang onto mbuf. eth_vhost_tx() copies packet data
+        * and releases mbuf, so nothing to cleanup.
+        */
+       return 0;
+}
+
 static int
 eth_link_update(struct rte_eth_dev *dev __rte_unused,
                int wait_to_complete __rte_unused)
@@ -1001,6 +1011,7 @@ static const struct eth_dev_ops ops = {
        .tx_queue_setup = eth_tx_queue_setup,
        .rx_queue_release = eth_queue_release,
        .tx_queue_release = eth_queue_release,
+       .tx_done_cleanup = eth_tx_done_cleanup,
        .link_update = eth_link_update,
        .stats_get = eth_stats_get,
        .stats_reset = eth_stats_reset,