From d29daf59b08c1314190c6d1cab0e22ee176b6c0f Mon Sep 17 00:00:00 2001 From: Hongbo Zheng Date: Tue, 23 Mar 2021 19:21:07 +0800 Subject: [PATCH 066/189] net/hns3: support Rx descriptor status query Add support for query Rx descriptor status in hns3 driver. Check the descriptor specified and provide the status information of the corresponding descriptor. Signed-off-by: Hongbo Zheng Signed-off-by: Min Hu (Connor) --- doc/guides/nics/features/hns3.ini | 1 + doc/guides/nics/features/hns3_vf.ini | 1 + drivers/net/hns3/hns3_ethdev.c | 1 + drivers/net/hns3/hns3_ethdev_vf.c | 1 + drivers/net/hns3/hns3_rxtx.c | 36 ++++++++++++++++++++++++++++++++++++ drivers/net/hns3/hns3_rxtx.h | 1 + 6 files changed, 41 insertions(+) diff --git a/doc/guides/nics/features/hns3.ini b/doc/guides/nics/features/hns3.ini index 445d391..d407b2f 100644 --- a/doc/guides/nics/features/hns3.ini +++ b/doc/guides/nics/features/hns3.ini @@ -34,6 +34,7 @@ L4 checksum offload = Y Inner L3 checksum = Y Inner L4 checksum = Y Packet type parsing = Y +Rx descriptor status = Y Tx descriptor status = Y Basic stats = Y Extended stats = Y diff --git a/doc/guides/nics/features/hns3_vf.ini b/doc/guides/nics/features/hns3_vf.ini index eb55b4f..a0fd56d 100644 --- a/doc/guides/nics/features/hns3_vf.ini +++ b/doc/guides/nics/features/hns3_vf.ini @@ -33,6 +33,7 @@ Inner L3 checksum = Y Inner L4 checksum = Y Packet type parsing = Y Tx descriptor status = Y +Rx descriptor status = Y Basic stats = Y Extended stats = Y Stats per queue = Y diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c index 5b07183..12cc3ac 100644 --- a/drivers/net/hns3/hns3_ethdev.c +++ b/drivers/net/hns3/hns3_ethdev.c @@ -6772,6 +6772,7 @@ hns3_dev_init(struct rte_eth_dev *eth_dev) err_mp_init_secondary: eth_dev->dev_ops = NULL; eth_dev->rx_pkt_burst = NULL; + eth_dev->rx_descriptor_status = NULL; eth_dev->tx_pkt_burst = NULL; eth_dev->tx_pkt_prepare = NULL; eth_dev->tx_descriptor_status = NULL; diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c index 2688c19..6404264 100644 --- a/drivers/net/hns3/hns3_ethdev_vf.c +++ b/drivers/net/hns3/hns3_ethdev_vf.c @@ -2915,6 +2915,7 @@ hns3vf_dev_init(struct rte_eth_dev *eth_dev) err_mp_init_secondary: eth_dev->dev_ops = NULL; eth_dev->rx_pkt_burst = NULL; + eth_dev->rx_descriptor_status = NULL; eth_dev->tx_pkt_burst = NULL; eth_dev->tx_pkt_prepare = NULL; eth_dev->tx_descriptor_status = NULL; diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c index efdb49a..6a7c360 100644 --- a/drivers/net/hns3/hns3_rxtx.c +++ b/drivers/net/hns3/hns3_rxtx.c @@ -4042,6 +4042,7 @@ void hns3_set_rxtx_function(struct rte_eth_dev *eth_dev) if (hns->hw.adapter_state == HNS3_NIC_STARTED && __atomic_load_n(&hns->hw.reset.resetting, __ATOMIC_RELAXED) == 0) { eth_dev->rx_pkt_burst = hns3_get_rx_function(eth_dev); + eth_dev->rx_descriptor_status = hns3_dev_rx_descriptor_status; eth_dev->tx_pkt_burst = hns3_get_tx_function(eth_dev, &prep); eth_dev->tx_pkt_prepare = prep; eth_dev->tx_descriptor_status = hns3_dev_tx_descriptor_status; @@ -4258,6 +4259,41 @@ hns3_tx_done_cleanup(void *txq, uint32_t free_cnt) } int +hns3_dev_rx_descriptor_status(void *rx_queue, uint16_t offset) +{ + volatile struct hns3_desc *rxdp; + struct hns3_rx_queue *rxq; + struct rte_eth_dev *dev; + uint32_t bd_base_info; + uint16_t desc_id; + + rxq = (struct hns3_rx_queue *)rx_queue; + if (offset >= rxq->nb_rx_desc) + return -EINVAL; + + desc_id = (rxq->next_to_use + offset) % rxq->nb_rx_desc; + rxdp = &rxq->rx_ring[desc_id]; + bd_base_info = rte_le_to_cpu_32(rxdp->rx.bd_base_info); + dev = &rte_eth_devices[rxq->port_id]; + if (dev->rx_pkt_burst == hns3_recv_pkts || + dev->rx_pkt_burst == hns3_recv_scattered_pkts) { + if (offset >= rxq->nb_rx_desc - rxq->rx_free_hold) + return RTE_ETH_RX_DESC_UNAVAIL; + } else if (dev->rx_pkt_burst == hns3_recv_pkts_vec || + dev->rx_pkt_burst == hns3_recv_pkts_vec_sve){ + if (offset >= rxq->nb_rx_desc - rxq->rx_rearm_nb) + return RTE_ETH_RX_DESC_UNAVAIL; + } else { + return RTE_ETH_RX_DESC_UNAVAIL; + } + + if (!(bd_base_info & BIT(HNS3_RXD_VLD_B))) + return RTE_ETH_RX_DESC_AVAIL; + else + return RTE_ETH_RX_DESC_DONE; +} + +int hns3_dev_tx_descriptor_status(void *tx_queue, uint16_t offset) { volatile struct hns3_desc *txdp; diff --git a/drivers/net/hns3/hns3_rxtx.h b/drivers/net/hns3/hns3_rxtx.h index 82d5aa0..f9b3048 100644 --- a/drivers/net/hns3/hns3_rxtx.h +++ b/drivers/net/hns3/hns3_rxtx.h @@ -720,6 +720,7 @@ void hns3_stop_all_txqs(struct rte_eth_dev *dev); void hns3_restore_tqp_enable_state(struct hns3_hw *hw); int hns3_tx_done_cleanup(void *txq, uint32_t free_cnt); void hns3_enable_rxd_adv_layout(struct hns3_hw *hw); +int hns3_dev_rx_descriptor_status(void *rx_queue, uint16_t offset); int hns3_dev_tx_descriptor_status(void *tx_queue, uint16_t offset); #endif /* _HNS3_RXTX_H_ */ -- 2.7.4