net/i40e: remove limit of Tx burst size

To add a wrapper function to remove the limit of tx burst size. The patch
makes i40e vec function an best effort to transmit the pkts in the
consistent behavior like i40e_xmit_pkts_simple and i40e_xmit_pkts do that.

Cc: Helin Zhang <helin.zhang@intel.com>
Cc: Jingjing Wu <jingjing.wu@intel.com>
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 9b3b39e..ff70c06 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -1420,6 +1420,28 @@ i40e_xmit_pkts_simple(void *tx_queue,
        return nb_tx;
 }
 
+static uint16_t
+i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+                  uint16_t nb_pkts)
+{
+       uint16_t nb_tx = 0;
+       struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue;
+
+       while (nb_pkts) {
+               uint16_t ret, num;
+
+               num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh);
+               ret = i40e_xmit_fixed_burst_vec(tx_queue, &tx_pkts[nb_tx],
+                                               num);
+               nb_tx += ret;
+               nb_pkts -= ret;
+               if (ret < num)
+                       break;
+       }
+
+       return nb_tx;
+}
+
 /*********************************************************************
  *
  *  TX prep functions
@@ -2944,9 +2966,9 @@ i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue __rte_unused*rxq)
 }
 
 uint16_t __attribute__((weak))
-i40e_xmit_pkts_vec(void __rte_unused *tx_queue,
-                  struct rte_mbuf __rte_unused **tx_pkts,
-                  uint16_t __rte_unused nb_pkts)
+i40e_xmit_fixed_burst_vec(void __rte_unused * tx_queue,
+                         struct rte_mbuf __rte_unused **tx_pkts,
+                         uint16_t __rte_unused nb_pkts)
 {
        return 0;
 }

diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h
index 1f8e681..2fa7f37 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx.h
+++ b/drivers/net/i40e/i40e_rxtx.h
@@ -248,8 +248,8 @@ int i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev);
 int i40e_rxq_vec_setup(struct i40e_rx_queue *rxq);
 int i40e_txq_vec_setup(struct i40e_tx_queue *txq);
 void i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq);
-uint16_t i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
-                           uint16_t nb_pkts);
+uint16_t i40e_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+                                  uint16_t nb_pkts);
 void i40e_set_rx_function(struct rte_eth_dev *dev);
 void i40e_set_tx_function_flag(struct rte_eth_dev *dev,
                               struct i40e_tx_queue *txq);

diff --git a/drivers/net/i40e/i40e_rxtx_vec_altivec.c b/drivers/net/i40e/i40e_rxtx_vec_altivec.c
index 40d1929..2f6f70a 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx_vec_altivec.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_altivec.c
@@ -562,8 +562,8 @@ vtx(volatile struct i40e_tx_desc *txdp,
 }
 
 uint16_t
-i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
-                  uint16_t nb_pkts)
+i40e_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+                         uint16_t nb_pkts)
 {
        struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue;
        volatile struct i40e_tx_desc *txdp;

diff --git a/drivers/net/i40e/i40e_rxtx_vec_neon.c b/drivers/net/i40e/i40e_rxtx_vec_neon.c
index d235daa..bd7239b 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx_vec_neon.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_neon.c
@@ -523,8 +523,8 @@ vtx(volatile struct i40e_tx_desc *txdp,
 }
 
 uint16_t
-i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
-                  uint16_t nb_pkts)
+i40e_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+                         uint16_t nb_pkts)
 {
        struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue;
        volatile struct i40e_tx_desc *txdp;

diff --git a/drivers/net/i40e/i40e_rxtx_vec_sse.c b/drivers/net/i40e/i40e_rxtx_vec_sse.c
index b95cc8e..deed7e2 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx_vec_sse.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_sse.c
@@ -536,8 +536,8 @@ vtx(volatile struct i40e_tx_desc *txdp,
 }
 
 uint16_t
-i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
-                  uint16_t nb_pkts)
+i40e_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+                         uint16_t nb_pkts)
 {
        struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue;
        volatile struct i40e_tx_desc *txdp;