[PATCH 08/19] net/xsc: create eth devices for representor ports

[WanRenyong]

Each representor port is a rte ethernet device.

Signed-off-by: WanRenyong <wa...@yunsilicon.com>
---
 drivers/net/xsc/xsc_ethdev.c | 87 ++++++++++++++++++++++++++++++++++++
 drivers/net/xsc/xsc_ethdev.h |  1 +
 2 files changed, 88 insertions(+)
diff --git a/drivers/net/xsc/xsc_ethdev.c b/drivers/net/xsc/xsc_ethdev.c
index 6a33cbb2cd..d6efc3c9a0 100644
--- a/drivers/net/xsc/xsc_ethdev.c
+++ b/drivers/net/xsc/xsc_ethdev.c
@@ -9,6 +9,83 @@
 #include "xsc_dev.h"
 #include "xsc_ethdev.h"
 
+static int
+xsc_ethdev_init_one_representor(struct rte_eth_dev *eth_dev, void *init_params)
+{
+       struct xsc_repr_port *repr_port = (struct xsc_repr_port *)init_params;
+       struct xsc_ethdev_priv *priv = TO_XSC_ETHDEV_PRIV(eth_dev);
+
+       priv->repr_port = repr_port;
+       repr_port->drv_data = eth_dev;
+
+       return 0;
+}
+
+static int
+xsc_ethdev_init_representors(struct rte_eth_dev *eth_dev)
+{
+       struct xsc_ethdev_priv *priv = TO_XSC_ETHDEV_PRIV(eth_dev);
+       struct rte_eth_devargs eth_da = { .nb_representor_ports = 0 };
+       struct rte_device *dev;
+       struct xsc_dev *xdev;
+       struct xsc_repr_port *repr_port;
+       char name[RTE_ETH_NAME_MAX_LEN];
+       int i;
+       int ret;
+
+       PMD_INIT_FUNC_TRACE();
+
+       dev = &priv->pci_dev->device;
+       if (dev->devargs != NULL) {
+               ret = rte_eth_devargs_parse(dev->devargs->args, &eth_da, 1);
+               if (ret < 0) {
+                       PMD_DRV_LOG(ERR, "Failed to parse device arguments: %s",
+                                   dev->devargs->args);
+                       return -EINVAL;
+               }
+       }
+
+       xdev = priv->xdev;
+       ret = xsc_repr_ports_probe(xdev, eth_da.nb_representor_ports, 
RTE_MAX_ETHPORTS);
+       if (ret != 0) {
+               PMD_DRV_LOG(ERR, "Failed to probe %d xsc device representors",
+                           eth_da.nb_representor_ports);
+               return ret;
+       }
+
+       repr_port = &xdev->repr_ports[XSC_DEV_REPR_PORT];
+       ret = xsc_ethdev_init_one_representor(eth_dev, repr_port);
+       if (ret != 0) {
+               PMD_DRV_LOG(ERR, "Failed to init backing representor");
+               return ret;
+       }
+
+       for (i = 1; i < xdev->num_repr_ports; i++) {
+               repr_port = &xdev->repr_ports[i];
+               snprintf(name, sizeof(name), "%s_rep_%d",
+                        xdev->ibv_name, repr_port->info.repr_id);
+               ret = rte_eth_dev_create(&xdev->pci_dev->device,
+                                        name,
+                                        sizeof(struct xsc_ethdev_priv),
+                                        NULL, NULL,
+                                        xsc_ethdev_init_one_representor,
+                                        repr_port);
+               if (ret != 0) {
+                       PMD_DRV_LOG(ERR, "Failed to create representor: %d", i);
+                       goto destroy_reprs;
+               }
+       }
+
+       return 0;
+
+destroy_reprs:
+       while ((i--) > 1) {
+               repr_port = &xdev->repr_ports[i];
+               rte_eth_dev_destroy((struct rte_eth_dev *)repr_port->drv_data, 
NULL);
+       }
+       return ret;
+}
+
 static int
 xsc_ethdev_init(struct rte_eth_dev *eth_dev)
 {
@@ -26,7 +103,17 @@ xsc_ethdev_init(struct rte_eth_dev *eth_dev)
                return ret;
        }
 
+       ret = xsc_ethdev_init_representors(eth_dev);
+       if (ret != 0) {
+               PMD_DRV_LOG(ERR, "Failed to initialize representors");
+               goto uninit_xsc_dev;
+       }
+
        return 0;
+
+uninit_xsc_dev:
+       xsc_dev_uninit(priv->xdev);
+       return ret;
 }
 
 static int
diff --git a/drivers/net/xsc/xsc_ethdev.h b/drivers/net/xsc/xsc_ethdev.h
index 22fc462e25..a05a63193c 100644
--- a/drivers/net/xsc/xsc_ethdev.h
+++ b/drivers/net/xsc/xsc_ethdev.h
@@ -9,6 +9,7 @@ struct xsc_ethdev_priv {
        struct rte_eth_dev *eth_dev;
        struct rte_pci_device *pci_dev;
        struct xsc_dev *xdev;
+       struct xsc_repr_port *repr_port;
 };
 
 #define TO_XSC_ETHDEV_PRIV(dev) \
-- 
2.25.1