net/enic: support burst mode info

Add Rx/Tx burst mode getter handlers.

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>

diff --git a/doc/guides/nics/features/enic.ini b/doc/guides/nics/features/enic.ini
index 1a065a8..9ef8f5f 100644 (file)
--- a/doc/guides/nics/features/enic.ini
+++ b/doc/guides/nics/features/enic.ini
@@ -9,6 +9,7 @@ Link status          = Y
 Link status event    = Y
 Rx interrupt         = Y
 Queue start/stop     = Y
+Burst mode info      = Y
 MTU update           = Y
 Jumbo frame          = Y
 Scattered Rx         = Y

diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index a95e51e..a9545c0 100644 (file)
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -148,6 +148,7 @@ struct enic {
        uint8_t ig_vlan_rewrite_mode; /* devargs ig-vlan-rewrite */
        uint16_t vxlan_port;  /* current vxlan port pushed to NIC */
        int use_simple_tx_handler;
+       int use_noscatter_vec_rx_handler;
 
        unsigned int flags;
        unsigned int priv_flags;

diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c
index 30a599d..ca75919 100644 (file)
--- a/drivers/net/enic/enic_ethdev.c
+++ b/drivers/net/enic/enic_ethdev.c
@@ -957,6 +957,49 @@ static void enicpmd_dev_txq_info_get(struct rte_eth_dev *dev,
        /* tx_thresh, and all the other fields are not applicable for enic */
 }
 
+static int enicpmd_dev_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;
+       struct enic *enic = pmd_priv(dev);
+       const char *info_str = NULL;
+       int ret = -EINVAL;
+
+       ENICPMD_FUNC_TRACE();
+       if (enic->use_noscatter_vec_rx_handler)
+               info_str = "Vector AVX2 No Scatter";
+       else if (pkt_burst == enic_noscatter_recv_pkts)
+               info_str = "Scalar No Scatter";
+       else if (pkt_burst == enic_recv_pkts)
+               info_str = "Scalar";
+       if (info_str) {
+               strlcpy(mode->info, info_str, sizeof(mode->info));
+               ret = 0;
+       }
+       return ret;
+}
+
+static int enicpmd_dev_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;
+       const char *info_str = NULL;
+       int ret = -EINVAL;
+
+       ENICPMD_FUNC_TRACE();
+       if (pkt_burst == enic_simple_xmit_pkts)
+               info_str = "Scalar Simplified";
+       else if (pkt_burst == enic_xmit_pkts)
+               info_str = "Scalar";
+       if (info_str) {
+               strlcpy(mode->info, info_str, sizeof(mode->info));
+               ret = 0;
+       }
+       return ret;
+}
+
 static int enicpmd_dev_rx_queue_intr_enable(struct rte_eth_dev *eth_dev,
                                            uint16_t rx_queue_id)
 {
@@ -1106,6 +1149,8 @@ static const struct eth_dev_ops enicpmd_eth_dev_ops = {
        .rx_queue_intr_disable = enicpmd_dev_rx_queue_intr_disable,
        .rxq_info_get         = enicpmd_dev_rxq_info_get,
        .txq_info_get         = enicpmd_dev_txq_info_get,
+       .rx_burst_mode_get    = enicpmd_dev_rx_burst_mode_get,
+       .tx_burst_mode_get    = enicpmd_dev_tx_burst_mode_get,
        .dev_led_on           = NULL,
        .dev_led_off          = NULL,
        .flow_ctrl_get        = NULL,

diff --git a/drivers/net/enic/enic_rxtx_vec_avx2.c b/drivers/net/enic/enic_rxtx_vec_avx2.c
index 36d4d0d..676b9f5 100644 (file)
--- a/drivers/net/enic/enic_rxtx_vec_avx2.c
+++ b/drivers/net/enic/enic_rxtx_vec_avx2.c
@@ -824,6 +824,7 @@ enic_use_vector_rx_handler(struct rte_eth_dev *eth_dev)
        if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2)) {
                ENICPMD_LOG(DEBUG, " use the non-scatter avx2 Rx handler");
                eth_dev->rx_pkt_burst = &enic_noscatter_vec_recv_pkts;
+               enic->use_noscatter_vec_rx_handler = 1;
                return true;
        }
        return false;