net/i40e: support Rx/Tx burst mode info

Retrieve burst mode options according to the selected Rx/Tx burst
function name.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>

diff --git a/doc/guides/nics/features/i40e.ini b/doc/guides/nics/features/i40e.ini
index 980bcc5..e5ae6de 100644 (file)
--- a/doc/guides/nics/features/i40e.ini
+++ b/doc/guides/nics/features/i40e.ini
@@ -11,6 +11,7 @@ Rx interrupt         = Y
 Queue start/stop     = Y
 Runtime Rx queue setup = Y
 Runtime Tx queue setup = Y
+Burst mode info      = Y
 Jumbo frame          = Y
 Scattered Rx         = Y
 TSO                  = Y

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 2ca14da..77a4683 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -502,6 +502,8 @@ static const struct eth_dev_ops i40e_eth_dev_ops = {
        .filter_ctrl                  = i40e_dev_filter_ctrl,
        .rxq_info_get                 = i40e_rxq_info_get,
        .txq_info_get                 = i40e_txq_info_get,
+       .rx_burst_mode_get            = i40e_rx_burst_mode_get,
+       .tx_burst_mode_get            = i40e_tx_burst_mode_get,
        .mirror_rule_set              = i40e_mirror_rule_set,
        .mirror_rule_reset            = i40e_mirror_rule_reset,
        .timesync_enable              = i40e_timesync_enable,

diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 261954b..2ddaffb 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -1209,6 +1209,10 @@ void i40e_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
        struct rte_eth_rxq_info *qinfo);
 void i40e_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
        struct rte_eth_txq_info *qinfo);
+int i40e_rx_burst_mode_get(struct rte_eth_dev *dev, uint16_t queue_id,
+                          struct rte_eth_burst_mode *mode);
+int i40e_tx_burst_mode_get(struct rte_eth_dev *dev, uint16_t queue_id,
+                          struct rte_eth_burst_mode *mode);
 struct i40e_ethertype_filter *
 i40e_sw_ethertype_filter_lookup(struct i40e_ethertype_rule *ethertype_rule,
                        const struct i40e_ethertype_filter_input *input);

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index bfe161f..09c01f6 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -3022,6 +3022,51 @@ i40e_set_rx_function(struct rte_eth_dev *dev)
        }
 }
 
+int
+i40e_rx_burst_mode_get(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id,
+                      struct rte_eth_burst_mode *mode)
+{
+       eth_rx_burst_t pkt_burst = dev->rx_pkt_burst;
+       uint64_t options;
+
+       if (pkt_burst == i40e_recv_scattered_pkts)
+               options = RTE_ETH_BURST_SCALAR | RTE_ETH_BURST_SCATTERED;
+       else if (pkt_burst == i40e_recv_pkts_bulk_alloc)
+               options = RTE_ETH_BURST_SCALAR | RTE_ETH_BURST_BULK_ALLOC;
+       else if (pkt_burst == i40e_recv_pkts)
+               options = RTE_ETH_BURST_SCALAR;
+#ifdef RTE_ARCH_X86
+       else if (pkt_burst == i40e_recv_scattered_pkts_vec_avx2)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_AVX2 |
+                         RTE_ETH_BURST_SCATTERED;
+       else if (pkt_burst == i40e_recv_pkts_vec_avx2)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_AVX2;
+       else if (pkt_burst == i40e_recv_scattered_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_SSE |
+                         RTE_ETH_BURST_SCATTERED;
+       else if (pkt_burst == i40e_recv_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_SSE;
+#elif defined(RTE_ARCH_ARM64)
+       else if (pkt_burst == i40e_recv_scattered_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_NEON |
+                         RTE_ETH_BURST_SCATTERED;
+       else if (pkt_burst == i40e_recv_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_NEON;
+#elif defined(RTE_ARCH_PPC_64)
+       else if (pkt_burst == i40e_recv_scattered_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_ALTIVEC |
+                         RTE_ETH_BURST_SCATTERED;
+       else if (pkt_burst == i40e_recv_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_ALTIVEC;
+#endif
+       else
+               options = 0;
+
+       mode->options = options;
+
+       return options != 0 ? 0 : -EINVAL;
+}
+
 void __attribute__((cold))
 i40e_set_tx_function_flag(struct rte_eth_dev *dev, struct i40e_tx_queue *txq)
 {
@@ -3115,6 +3160,37 @@ i40e_set_tx_function(struct rte_eth_dev *dev)
        }
 }
 
+int
+i40e_tx_burst_mode_get(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id,
+                      struct rte_eth_burst_mode *mode)
+{
+       eth_tx_burst_t pkt_burst = dev->tx_pkt_burst;
+       uint64_t options;
+
+       if (pkt_burst == i40e_xmit_pkts_simple)
+               options = RTE_ETH_BURST_SCALAR | RTE_ETH_BURST_SIMPLE;
+       else if (pkt_burst == i40e_xmit_pkts)
+               options = RTE_ETH_BURST_SCALAR;
+#ifdef RTE_ARCH_X86
+       else if (pkt_burst == i40e_xmit_pkts_vec_avx2)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_AVX2;
+       else if (pkt_burst == i40e_xmit_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_SSE;
+#elif defined(RTE_ARCH_ARM64)
+       else if (pkt_burst == i40e_xmit_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_NEON;
+#elif defined(RTE_ARCH_PPC_64)
+       else if (pkt_burst == i40e_xmit_pkts_vec)
+               options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_ALTIVEC;
+#endif
+       else
+               options = 0;
+
+       mode->options = options;
+
+       return options != 0 ? 0 : -EINVAL;
+}
+
 void __attribute__((cold))
 i40e_set_default_ptype_table(struct rte_eth_dev *dev)
 {