[dpdk-dev] [PATCH v3 3/4] net/ice: add Rx/Tx burst mode get callbacks

[Haiyue Wang]

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

Signed-off-by: Haiyue Wang <haiyue.wang at intel.com>
Acked-by: Bernard Iremonger <bernard.iremonger at intel.com>
Reviewed-by: Xiaolong Ye <xiaolong.ye at intel.com>
---
 doc/guides/nics/features/ice.ini |  1 +
 drivers/net/ice/ice_ethdev.c     |  2 ++
 drivers/net/ice/ice_rxtx.c       | 58 ++++++++++++++++++++++++++++++++
 drivers/net/ice/ice_rxtx.h       |  4 +++
 4 files changed, 65 insertions(+)

diff --git a/doc/guides/nics/features/ice.ini b/doc/guides/nics/features/ice.ini
index 5e6cb4b7e..65923f0bc 100644
--- a/doc/guides/nics/features/ice.ini
+++ b/doc/guides/nics/features/ice.ini
@@ -10,6 +10,7 @@ Link status event    = Y
 Rx interrupt         = Y
 Fast mbuf free       = Y
 Queue start/stop     = Y
+Burst mode info      = Y
 MTU update           = Y
 Jumbo frame          = Y
 Scattered Rx         = Y
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 022b58c01..d848440a1 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -167,6 +167,8 @@ static const struct eth_dev_ops ice_eth_dev_ops = {
 	.vlan_pvid_set                = ice_vlan_pvid_set,
 	.rxq_info_get                 = ice_rxq_info_get,
 	.txq_info_get                 = ice_txq_info_get,
+	.rx_burst_mode_get            = ice_rx_burst_mode_get,
+	.tx_burst_mode_get            = ice_tx_burst_mode_get,
 	.get_eeprom_length            = ice_get_eeprom_length,
 	.get_eeprom                   = ice_get_eeprom,
 	.rx_queue_count               = ice_rx_queue_count,
diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 8785cf8a3..c07aa4b81 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -2435,6 +2435,39 @@ ice_set_rx_function(struct rte_eth_dev *dev)
 	}
 }
 
+int
+ice_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 == ice_recv_scattered_pkts)
+		options = RTE_ETH_BURST_SCALAR | RTE_ETH_BURST_SCATTERED;
+	else if (pkt_burst == ice_recv_pkts_bulk_alloc)
+		options = RTE_ETH_BURST_SCALAR | RTE_ETH_BURST_BULK_ALLOC;
+	else if (pkt_burst == ice_recv_pkts)
+		options = RTE_ETH_BURST_SCALAR;
+#ifdef RTE_ARCH_X86
+	else if (pkt_burst == ice_recv_scattered_pkts_vec_avx2)
+		options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_AVX2 |
+			  RTE_ETH_BURST_SCATTERED;
+	else if (pkt_burst == ice_recv_pkts_vec_avx2)
+		options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_AVX2;
+	else if (pkt_burst == ice_recv_scattered_pkts_vec)
+		options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_SSE |
+			  RTE_ETH_BURST_SCATTERED;
+	else if (pkt_burst == ice_recv_pkts_vec)
+		options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_SSE;
+#endif
+	else
+		options = 0;
+
+	mode->options = options;
+
+	return options != 0 ? 0 : -EINVAL;
+}
+
 void __attribute__((cold))
 ice_set_tx_function_flag(struct rte_eth_dev *dev, struct ice_tx_queue *txq)
 {
@@ -2558,6 +2591,31 @@ ice_set_tx_function(struct rte_eth_dev *dev)
 	}
 }
 
+int
+ice_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 == ice_xmit_pkts_simple)
+		options = RTE_ETH_BURST_SCALAR | RTE_ETH_BURST_SIMPLE;
+	else if (pkt_burst == ice_xmit_pkts)
+		options = RTE_ETH_BURST_SCALAR;
+#ifdef RTE_ARCH_X86
+	else if (pkt_burst == ice_xmit_pkts_vec_avx2)
+		options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_AVX2;
+	else if (pkt_burst == ice_xmit_pkts_vec)
+		options = RTE_ETH_BURST_VECTOR | RTE_ETH_BURST_SSE;
+#endif
+	else
+		options = 0;
+
+	mode->options = options;
+
+	return options != 0 ? 0 : -EINVAL;
+}
+
 /* For each value it means, datasheet of hardware can tell more details
  *
  * @note: fix ice_dev_supported_ptypes_get() if any change here.
diff --git a/drivers/net/ice/ice_rxtx.h b/drivers/net/ice/ice_rxtx.h
index 25b3822df..31c53d535 100644
--- a/drivers/net/ice/ice_rxtx.h
+++ b/drivers/net/ice/ice_rxtx.h
@@ -168,6 +168,10 @@ void ice_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
 		      struct rte_eth_rxq_info *qinfo);
 void ice_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
 		      struct rte_eth_txq_info *qinfo);
+int ice_rx_burst_mode_get(struct rte_eth_dev *dev, uint16_t queue_id,
+			  struct rte_eth_burst_mode *mode);
+int ice_tx_burst_mode_get(struct rte_eth_dev *dev, uint16_t queue_id,
+			  struct rte_eth_burst_mode *mode);
 int ice_rx_descriptor_status(void *rx_queue, uint16_t offset);
 int ice_tx_descriptor_status(void *tx_queue, uint16_t offset);
 void ice_set_default_ptype_table(struct rte_eth_dev *dev);
-- 
2.17.1