From 4c1c8f76463f1bddac15846ded6e7aa1e9f00703 Mon Sep 17 00:00:00 2001 From: Pavel Belous Date: Fri, 12 Oct 2018 11:09:41 +0000 Subject: [PATCH] net/atlantic: add flow control configuration Add support for flow control feature. Signed-off-by: Igor Russkikh Signed-off-by: Pavel Belous --- doc/guides/nics/features/atlantic.ini | 1 + drivers/net/atlantic/atl_ethdev.c | 54 +++++++++++++++++++++++++++ 2 files changed, 55 insertions(+) diff --git a/doc/guides/nics/features/atlantic.ini b/doc/guides/nics/features/atlantic.ini index 592af81793..e86707ea5c 100644 --- a/doc/guides/nics/features/atlantic.ini +++ b/doc/guides/nics/features/atlantic.ini @@ -14,6 +14,7 @@ Allmulticast mode = Y RSS hash = Y RSS key update = Y RSS reta update = Y +Flow control = Y CRC offload = Y L3 checksum offload = Y L4 checksum offload = Y diff --git a/drivers/net/atlantic/atl_ethdev.c b/drivers/net/atlantic/atl_ethdev.c index 2f36584475..6ce4454fe2 100644 --- a/drivers/net/atlantic/atl_ethdev.c +++ b/drivers/net/atlantic/atl_ethdev.c @@ -48,6 +48,12 @@ static void atl_dev_info_get(struct rte_eth_dev *dev, static const uint32_t *atl_dev_supported_ptypes_get(struct rte_eth_dev *dev); +/* Flow control */ +static int atl_flow_ctrl_get(struct rte_eth_dev *dev, + struct rte_eth_fc_conf *fc_conf); +static int atl_flow_ctrl_set(struct rte_eth_dev *dev, + struct rte_eth_fc_conf *fc_conf); + static void atl_dev_link_status_print(struct rte_eth_dev *dev); /* Interrupts */ @@ -219,6 +225,10 @@ static const struct eth_dev_ops atl_eth_dev_ops = { .rx_descriptor_status = atl_dev_rx_descriptor_status, .tx_descriptor_status = atl_dev_tx_descriptor_status, + /* Flow Control */ + .flow_ctrl_get = atl_flow_ctrl_get, + .flow_ctrl_set = atl_flow_ctrl_set, + .rxq_info_get = atl_rxq_info_get, .txq_info_get = atl_txq_info_get, @@ -287,6 +297,7 @@ eth_atl_dev_init(struct rte_eth_dev *eth_dev) AQ_NIC_RATE_1G | AQ_NIC_RATE_100M; + adapter->hw_cfg.flow_control = (AQ_NIC_FC_RX | AQ_NIC_FC_TX); adapter->hw_cfg.aq_rss.indirection_table_size = HW_ATL_B0_RSS_REDIRECTION_MAX; @@ -1026,6 +1037,49 @@ atl_dev_interrupt_handler(void *param) atl_dev_interrupt_action(dev, dev->intr_handle); } + +static int +atl_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) +{ + struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private); + + if (hw->aq_nic_cfg->flow_control == AQ_NIC_FC_OFF) + fc_conf->mode = RTE_FC_NONE; + else if (hw->aq_nic_cfg->flow_control & (AQ_NIC_FC_RX | AQ_NIC_FC_TX)) + fc_conf->mode = RTE_FC_FULL; + else if (hw->aq_nic_cfg->flow_control & AQ_NIC_FC_RX) + fc_conf->mode = RTE_FC_RX_PAUSE; + else if (hw->aq_nic_cfg->flow_control & AQ_NIC_FC_RX) + fc_conf->mode = RTE_FC_TX_PAUSE; + + return 0; +} + +static int +atl_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) +{ + struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint32_t old_flow_control = hw->aq_nic_cfg->flow_control; + + + if (hw->aq_fw_ops->set_flow_control == NULL) + return -ENOTSUP; + + if (fc_conf->mode == RTE_FC_NONE) + hw->aq_nic_cfg->flow_control = AQ_NIC_FC_OFF; + else if (fc_conf->mode == RTE_FC_RX_PAUSE) + hw->aq_nic_cfg->flow_control = AQ_NIC_FC_RX; + else if (fc_conf->mode == RTE_FC_TX_PAUSE) + hw->aq_nic_cfg->flow_control = AQ_NIC_FC_TX; + else if (fc_conf->mode == RTE_FC_FULL) + hw->aq_nic_cfg->flow_control = (AQ_NIC_FC_RX | AQ_NIC_FC_TX); + + if (old_flow_control != hw->aq_nic_cfg->flow_control) + return hw->aq_fw_ops->set_flow_control(hw); + + return 0; +} + static int atl_reta_update(struct rte_eth_dev *dev, struct rte_eth_rss_reta_entry64 *reta_conf, -- 2.20.1