[dpdk-dev] [PATCH 09/16] net/avp: device configuration

[Allain Legacy <allain.legacy@windriver.com>]

Adds support for "dev_configure" operations to allow an application to
configure the device.

Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
Signed-off-by: Matt Peters <matt.peters@windriver.com>
---
 drivers/net/avp/avp_ethdev.c | 136 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)

diff --git a/drivers/net/avp/avp_ethdev.c b/drivers/net/avp/avp_ethdev.c
index b48895d..13ec9e2 100644
--- a/drivers/net/avp/avp_ethdev.c
+++ b/drivers/net/avp/avp_ethdev.c
@@ -66,6 +66,12 @@ static int avp_dev_create(struct rte_pci_device *pci_dev,
 static int eth_avp_dev_init(struct rte_eth_dev *eth_dev);
 static int eth_avp_dev_uninit(struct rte_eth_dev *eth_dev);
 
+static int avp_dev_configure(struct rte_eth_dev *dev);
+static void avp_dev_info_get(struct rte_eth_dev *dev,
+			     struct rte_eth_dev_info *dev_info);
+static void avp_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int avp_dev_link_update(struct rte_eth_dev *dev,
+			       __rte_unused int wait_to_complete);
 
 #define AVP_DEV_TO_PCI(eth_dev) RTE_DEV_TO_PCI((eth_dev)->device)
 
@@ -104,6 +110,15 @@ static int avp_dev_create(struct rte_pci_device *pci_dev,
 	},
 };
 
+/*
+ * dev_ops for avp, bare necessities for basic operation
+ */
+static const struct eth_dev_ops avp_eth_dev_ops = {
+	.dev_configure       = avp_dev_configure,
+	.dev_infos_get       = avp_dev_info_get,
+	.vlan_offload_set    = avp_vlan_offload_set,
+	.link_update         = avp_dev_link_update,
+};
 
 /**@{ AVP device flags */
 #define RTE_AVP_F_PROMISC (1<<1)
@@ -907,6 +922,7 @@ struct avp_queue {
 	int ret;
 
 	pci_dev = AVP_DEV_TO_PCI(eth_dev);
+	eth_dev->dev_ops = &avp_eth_dev_ops;
 
 	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 		/*
@@ -997,6 +1013,126 @@ struct avp_queue {
 };
 
 
+static int
+avp_dev_configure(struct rte_eth_dev *eth_dev)
+{
+	struct rte_pci_device *pci_dev = AVP_DEV_TO_PCI(eth_dev);
+	struct avp_dev *avp =
+		RTE_AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+	struct rte_avp_device_info *host_info;
+	struct rte_avp_device_config config;
+	int mask = 0;
+	void *addr;
+	int ret;
+
+	rte_spinlock_lock(&avp->lock);
+	if (avp->flags & RTE_AVP_F_DETACHED) {
+		PMD_DRV_LOG(ERR,
+			    "Operation not supported during "
+			    "VM live migration\n");
+		ret = -ENOTSUP;
+		goto unlock;
+	}
+
+	addr = pci_dev->mem_resource[RTE_AVP_PCI_DEVICE_BAR].addr;
+	host_info = (struct rte_avp_device_info *)addr;
+
+	/* Setup required number of queues */
+	_avp_set_queue_counts(eth_dev);
+
+	mask = (ETH_VLAN_STRIP_MASK |
+		ETH_VLAN_FILTER_MASK |
+		ETH_VLAN_EXTEND_MASK);
+	avp_vlan_offload_set(eth_dev, mask);
+
+	/* update device config */
+	memset(&config, 0, sizeof(config));
+	config.device_id = host_info->device_id;
+	config.driver_type = RTE_AVP_DRIVER_TYPE_DPDK;
+	config.driver_version = RTE_AVP_DPDK_DRIVER_VERSION;
+	config.features = avp->features;
+	config.num_tx_queues = avp->num_tx_queues;
+	config.num_rx_queues = avp->num_rx_queues;
+
+	ret = avp_dev_ctrl_set_config(eth_dev, &config);
+	if (ret < 0) {
+		PMD_DRV_LOG(ERR,
+			    "Config request failed by host, ret=%d\n", ret);
+		goto unlock;
+	}
+
+	avp->flags |= RTE_AVP_F_CONFIGURED;
+	ret = 0;
+
+unlock:
+	rte_spinlock_unlock(&avp->lock);
+	return ret;
+}
+
+
+static int
+avp_dev_link_update(struct rte_eth_dev *eth_dev,
+					__rte_unused int wait_to_complete)
+{
+	struct avp_dev *avp =
+		RTE_AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+	struct rte_eth_link *link = &eth_dev->data->dev_link;
+
+	link->link_speed = ETH_SPEED_NUM_10G;
+	link->link_duplex = ETH_LINK_FULL_DUPLEX;
+	link->link_status = !!(avp->flags & RTE_AVP_F_LINKUP);
+
+	return -1;
+}
+
+
+static void
+avp_dev_info_get(struct rte_eth_dev *eth_dev,
+		 struct rte_eth_dev_info *dev_info)
+{
+	struct avp_dev *avp =
+		RTE_AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+
+	dev_info->driver_name = "rte_avp_pmd";
+	dev_info->max_rx_queues = avp->max_rx_queues;
+	dev_info->max_tx_queues = avp->max_tx_queues;
+	dev_info->min_rx_bufsize = RTE_AVP_MIN_RX_BUFSIZE;
+	dev_info->max_rx_pktlen = avp->max_rx_pkt_len;
+	dev_info->max_mac_addrs = RTE_AVP_MAX_MAC_ADDRS;
+	if (avp->host_features & RTE_AVP_FEATURE_VLAN_OFFLOAD) {
+		dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP;
+		dev_info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT;
+	}
+}
+
+static void
+avp_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
+{
+	struct avp_dev *avp =
+		RTE_AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+
+	if (mask & ETH_VLAN_STRIP_MASK) {
+		if (avp->host_features & RTE_AVP_FEATURE_VLAN_OFFLOAD) {
+			if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
+				avp->features |= RTE_AVP_FEATURE_VLAN_OFFLOAD;
+			else
+				avp->features &= ~RTE_AVP_FEATURE_VLAN_OFFLOAD;
+		} else {
+			PMD_DRV_LOG(ERR, "VLAN strip offload not supported\n");
+		}
+	}
+
+	if (mask & ETH_VLAN_FILTER_MASK) {
+		if (eth_dev->data->dev_conf.rxmode.hw_vlan_filter)
+			PMD_DRV_LOG(ERR, "VLAN filter offload not supported\n");
+	}
+
+	if (mask & ETH_VLAN_EXTEND_MASK) {
+		if (eth_dev->data->dev_conf.rxmode.hw_vlan_extend)
+			PMD_DRV_LOG(ERR, "VLAN extend offload not supported\n");
+	}
+}
+
 
 RTE_PMD_REGISTER_PCI(rte_avp, rte_avp_pmd.pci_drv);
 RTE_PMD_REGISTER_PCI_TABLE(rte_avp, pci_id_avp_map);
-- 
1.8.3.1