From: Sunil Kumar Kori <skori@marvell.com>
Date: Wed, 23 Jun 2021 04:46:47 +0000 (+0530)
Subject: net/cnxk: support pending Tx mbuf cleanup
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=4be0b2b140d41dff78ea72f70952d57aa8d5c68f;p=dpdk.git

net/cnxk: support pending Tx mbuf cleanup

Once mbufs are transmitted, mbufs are freed by H/W. No mbufs are
accumalated as a pending mbuf.
Hence operation is NOP for cnxk platform.

Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
---

diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c
index 24f02e6a28..529adf7c4a 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -1211,6 +1211,7 @@ struct eth_dev_ops cnxk_eth_dev_ops = {
 	.xstats_get_names_by_id = cnxk_nix_xstats_get_names_by_id,
 	.rxq_info_get = cnxk_nix_rxq_info_get,
 	.txq_info_get = cnxk_nix_txq_info_get,
+	.tx_done_cleanup = cnxk_nix_tx_done_cleanup,
 };
 
 static int
diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h
index 32977eb613..1c4403c1f3 100644
--- a/drivers/net/cnxk/cnxk_ethdev.h
+++ b/drivers/net/cnxk/cnxk_ethdev.h
@@ -266,6 +266,7 @@ int cnxk_nix_rx_queue_intr_enable(struct rte_eth_dev *eth_dev,
 int cnxk_nix_rx_queue_intr_disable(struct rte_eth_dev *eth_dev,
 				   uint16_t rx_queue_id);
 int cnxk_nix_pool_ops_supported(struct rte_eth_dev *eth_dev, const char *pool);
+int cnxk_nix_tx_done_cleanup(void *txq, uint32_t free_cnt);
 
 int cnxk_nix_configure(struct rte_eth_dev *eth_dev);
 int cnxk_nix_tx_queue_setup(struct rte_eth_dev *eth_dev, uint16_t qid,
diff --git a/drivers/net/cnxk/cnxk_ethdev_ops.c b/drivers/net/cnxk/cnxk_ethdev_ops.c
index 782f163450..305220af45 100644
--- a/drivers/net/cnxk/cnxk_ethdev_ops.c
+++ b/drivers/net/cnxk/cnxk_ethdev_ops.c
@@ -658,3 +658,13 @@ cnxk_nix_txq_info_get(struct rte_eth_dev *eth_dev, uint16_t qid,
 
 	memcpy(&qinfo->conf, &txq_sp->qconf.conf.tx, sizeof(qinfo->conf));
 }
+
+/* It is a NOP for cnxk as HW frees the buffer on xmit */
+int
+cnxk_nix_tx_done_cleanup(void *txq, uint32_t free_cnt)
+{
+	RTE_SET_USED(txq);
+	RTE_SET_USED(free_cnt);
+
+	return 0;
+}