net/i40e: fix missing mbuf fast free offload

Expose the missing mbuf fast free capability since i40 does
support it.

Fixes: 7497d3e2f777 ("net/i40e: convert to new Tx offloads API")

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 267bdf0..da6375b 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -3301,7 +3301,7 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
                DEV_RX_OFFLOAD_VLAN_FILTER |
                DEV_RX_OFFLOAD_JUMBO_FRAME;
 
-       dev_info->tx_queue_offload_capa = 0;
+       dev_info->tx_queue_offload_capa = DEV_TX_OFFLOAD_MBUF_FAST_FREE;
        dev_info->tx_offload_capa =
                DEV_TX_OFFLOAD_VLAN_INSERT |
                DEV_TX_OFFLOAD_QINQ_INSERT |
@@ -3315,7 +3315,8 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
                DEV_TX_OFFLOAD_GRE_TNL_TSO |
                DEV_TX_OFFLOAD_IPIP_TNL_TSO |
                DEV_TX_OFFLOAD_GENEVE_TNL_TSO |
-               DEV_TX_OFFLOAD_MULTI_SEGS;
+               DEV_TX_OFFLOAD_MULTI_SEGS |
+               dev_info->tx_queue_offload_capa;
        dev_info->dev_capa =
                RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
                RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 1b2f5fc..6032d55 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -3028,9 +3028,11 @@ i40e_set_tx_function_flag(struct rte_eth_dev *dev, struct i40e_tx_queue *txq)
        struct i40e_adapter *ad =
                I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
 
-       /* Use a simple Tx queue (no offloads, no multi segs) if possible */
-       ad->tx_simple_allowed = (txq->offloads == 0 &&
-                       txq->tx_rs_thresh >= RTE_PMD_I40E_TX_MAX_BURST);
+       /* Use a simple Tx queue if possible (only fast free is allowed) */
+       ad->tx_simple_allowed =
+               (txq->offloads ==
+                (txq->offloads & DEV_TX_OFFLOAD_MBUF_FAST_FREE) &&
+                txq->tx_rs_thresh >= RTE_PMD_I40E_TX_MAX_BURST);
        ad->tx_vec_allowed = (ad->tx_simple_allowed &&
                        txq->tx_rs_thresh <= RTE_I40E_TX_MAX_FREE_BUF_SZ);