[PATCH v10 01/14] net/idpf: add support for device start and stop

[Junfeng Guo]

Add dev ops dev_start, dev_stop and link_update.

Signed-off-by: Beilei Xing <beilei.xing at intel.com>
Signed-off-by: Xiaoyun Li <xiaoyun.li at intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo at intel.com>
---
 drivers/net/idpf/idpf_ethdev.c | 89 ++++++++++++++++++++++++++++++++++
 drivers/net/idpf/idpf_ethdev.h |  5 ++
 2 files changed, 94 insertions(+)

diff --git a/drivers/net/idpf/idpf_ethdev.c b/drivers/net/idpf/idpf_ethdev.c
index 1d2075f466..4c7a2d0748 100644
--- a/drivers/net/idpf/idpf_ethdev.c
+++ b/drivers/net/idpf/idpf_ethdev.c
@@ -29,17 +29,42 @@ static const char * const idpf_valid_args[] = {
 };
 
 static int idpf_dev_configure(struct rte_eth_dev *dev);
+static int idpf_dev_start(struct rte_eth_dev *dev);
+static int idpf_dev_stop(struct rte_eth_dev *dev);
 static int idpf_dev_close(struct rte_eth_dev *dev);
 static int idpf_dev_info_get(struct rte_eth_dev *dev,
 			     struct rte_eth_dev_info *dev_info);
 static void idpf_adapter_rel(struct idpf_adapter *adapter);
 
+int
+idpf_dev_link_update(struct rte_eth_dev *dev,
+		     __rte_unused int wait_to_complete)
+{
+	struct idpf_vport *vport = dev->data->dev_private;
+	struct rte_eth_link new_link;
+
+	memset(&new_link, 0, sizeof(new_link));
+
+	new_link.link_speed = RTE_ETH_SPEED_NUM_NONE;
+
+	new_link.link_duplex = RTE_ETH_LINK_FULL_DUPLEX;
+	new_link.link_status = vport->link_up ? RTE_ETH_LINK_UP :
+		RTE_ETH_LINK_DOWN;
+	new_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
+				  RTE_ETH_LINK_SPEED_FIXED);
+
+	return rte_eth_linkstatus_set(dev, &new_link);
+}
+
 static const struct eth_dev_ops idpf_eth_dev_ops = {
 	.dev_configure			= idpf_dev_configure,
+	.dev_start			= idpf_dev_start,
+	.dev_stop			= idpf_dev_stop,
 	.dev_close			= idpf_dev_close,
 	.rx_queue_setup			= idpf_rx_queue_setup,
 	.tx_queue_setup			= idpf_tx_queue_setup,
 	.dev_infos_get			= idpf_dev_info_get,
+	.link_update			= idpf_dev_link_update,
 };
 
 static int
@@ -233,6 +258,70 @@ idpf_dev_configure(struct rte_eth_dev *dev)
 	return 0;
 }
 
+static int
+idpf_start_queues(struct rte_eth_dev *dev)
+{
+	struct idpf_rx_queue *rxq;
+	struct idpf_tx_queue *txq;
+	int err = 0;
+	int i;
+
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		txq = dev->data->tx_queues[i];
+		if (txq == NULL || txq->tx_deferred_start)
+			continue;
+
+		PMD_DRV_LOG(ERR, "Start Tx queues not supported yet");
+		return -ENOTSUP;
+	}
+
+	for (i = 0; i < dev->data->nb_rx_queues; i++) {
+		rxq = dev->data->rx_queues[i];
+		if (rxq == NULL || rxq->rx_deferred_start)
+			continue;
+
+		PMD_DRV_LOG(ERR, "Start Rx queues not supported yet");
+		return -ENOTSUP;
+	}
+
+	return err;
+}
+
+static int
+idpf_dev_start(struct rte_eth_dev *dev)
+{
+	struct idpf_vport *vport = dev->data->dev_private;
+
+	if (dev->data->mtu > vport->max_mtu) {
+		PMD_DRV_LOG(ERR, "MTU should be less than %d", vport->max_mtu);
+		return -1;
+	}
+
+	vport->max_pkt_len = dev->data->mtu + IDPF_ETH_OVERHEAD;
+
+	if (idpf_start_queues(dev) != 0) {
+		PMD_DRV_LOG(ERR, "Failed to start queues");
+		return -1;
+	}
+
+	if (idpf_vc_ena_dis_vport(vport, true) != 0) {
+		PMD_DRV_LOG(ERR, "Failed to enable vport");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+idpf_dev_stop(struct rte_eth_dev *dev)
+{
+	struct idpf_vport *vport = dev->data->dev_private;
+
+	idpf_vc_ena_dis_vport(vport, false);
+
+	return 0;
+}
+
 static int
 idpf_dev_close(struct rte_eth_dev *dev)
 {
diff --git a/drivers/net/idpf/idpf_ethdev.h b/drivers/net/idpf/idpf_ethdev.h
index c0ae801fd5..070531cc48 100644
--- a/drivers/net/idpf/idpf_ethdev.h
+++ b/drivers/net/idpf/idpf_ethdev.h
@@ -105,6 +105,9 @@ struct idpf_vport {
 	/* Chunk info */
 	struct idpf_chunks_info chunks_info;
 
+	/* Event from ipf */
+	bool link_up;
+
 	uint16_t devarg_id;
 };
 
@@ -195,6 +198,8 @@ atomic_set_cmd(struct idpf_adapter *adapter, enum virtchnl_ops ops)
 }
 
 struct idpf_adapter *idpf_find_adapter(struct rte_pci_device *pci_dev);
+int idpf_dev_link_update(struct rte_eth_dev *dev,
+			 __rte_unused int wait_to_complete);
 void idpf_handle_virtchnl_msg(struct rte_eth_dev *dev);
 int idpf_vc_check_api_version(struct idpf_adapter *adapter);
 int idpf_vc_get_caps(struct idpf_adapter *adapter);
-- 
2.34.1