Add support to the i40e driver for the API rte_eth_tx_done_cleanup
to force free consumed buffers on Tx ring.
Signed-off-by: Di ChenxuX <chenxux...@intel.com>
---
drivers/net/i40e/i40e_ethdev.c | 1 +
drivers/net/i40e/i40e_ethdev_vf.c | 1 +
drivers/net/i40e/i40e_rxtx.c | 42 +++++++++++++++++++++++++++++++
drivers/net/i40e/i40e_rxtx.h | 1 +
4 files changed, 45 insertions(+)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 4e40b7ab5..cf35fb5da 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -509,6 +509,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = {
.mac_addr_set = i40e_set_default_mac_addr,
.mtu_set = i40e_dev_mtu_set,
.tm_ops_get = i40e_tm_ops_get,
+ .tx_done_cleanup = i40e_tx_done_cleanup,
};
/* store statistics names and its offset in stats structure */
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c
b/drivers/net/i40e/i40e_ethdev_vf.c
index c77b30c54..b462a9d8c 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -215,6 +215,7 @@ static const struct eth_dev_ops i40evf_eth_dev_ops = {
.rss_hash_conf_get = i40evf_dev_rss_hash_conf_get,
.mtu_set = i40evf_dev_mtu_set,
.mac_addr_set = i40evf_set_default_mac_addr,
+ .tx_done_cleanup = i40e_tx_done_cleanup,
};
/*
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 692c3bab4..29793a1b7 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -1416,6 +1416,8 @@ i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf
**tx_pkts,
break;
}
+ //eth_i40e_tx_done_cleanup(tx_queue,5);
+
return nb_tx;
}
@@ -2467,6 +2469,46 @@ i40e_tx_queue_release_mbufs(struct i40e_tx_queue *txq)
}
}
+int i40e_tx_done_cleanup(void *txq, uint32_t free_cnt)
+{
+ struct i40e_tx_queue *q = (struct i40e_tx_queue *)txq;
+ struct i40e_tx_entry *sw_ring;
+ uint16_t tx_id; /* Current segment being processed. */
+ uint16_t tx_cleaned;
+
+ int count = 0;
+
+ if (q == NULL)
+ return -ENODEV;
+
+ sw_ring = q->sw_ring;
+ tx_cleaned = q->last_desc_cleaned;
+ tx_id = sw_ring[q->last_desc_cleaned].next_id;
+ if ((q->tx_ring[tx_id].cmd_type_offset_bsz &
+ rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) !=
+ rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
+ return 0;
+
+ do {
+ if (sw_ring[tx_id].mbuf == NULL)
+ break;
+
+ rte_pktmbuf_free_seg(sw_ring[tx_id].mbuf);
+ sw_ring[tx_id].mbuf = NULL;
+ sw_ring[tx_id].last_id = tx_id;
+
+ /* Move to next segemnt. */
+ tx_cleaned = tx_id;
+ tx_id = sw_ring[tx_id].next_id;
+ count++;
+ } while (count != (int)free_cnt);
+
+ q->nb_tx_free += (uint16_t)count;
+ q->last_desc_cleaned = tx_cleaned;
+
+ return count;
+}
+
void
i40e_reset_tx_queue(struct i40e_tx_queue *txq)
{
diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h
index 3fc619af9..1a70eda2c 100644
--- a/drivers/net/i40e/i40e_rxtx.h
+++ b/drivers/net/i40e/i40e_rxtx.h
@@ -204,6 +204,7 @@ void i40e_dev_free_queues(struct rte_eth_dev *dev);
void i40e_reset_rx_queue(struct i40e_rx_queue *rxq);
void i40e_reset_tx_queue(struct i40e_tx_queue *txq);
void i40e_tx_queue_release_mbufs(struct i40e_tx_queue *txq);
+int i40e_tx_done_cleanup(void *txq, uint32_t free_cnt);
int i40e_alloc_rx_queue_mbufs(struct i40e_rx_queue *rxq);
void i40e_rx_queue_release_mbufs(struct i40e_rx_queue *rxq);
--
2.17.1
