[dpdk-dev] [PATCH v2 09/12] ethdev: support attach vdev in secondary process

[Jianfeng Tan]

When vdev driver requests an ethdev entry in secondary process,
we will identify the correct entry in rte_eth_dev_data array
and return the correct entry in the rte_eth_devices arrays.

Signed-off-by: Jianfeng Tan <jianfeng....@intel.com>
---
 lib/librte_ether/rte_ethdev_vdev.h | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev_vdev.h 
b/lib/librte_ether/rte_ethdev_vdev.h
index 4d2c3e2..460749b 100644
--- a/lib/librte_ether/rte_ethdev_vdev.h
+++ b/lib/librte_ether/rte_ethdev_vdev.h
@@ -58,25 +58,29 @@ rte_eth_vdev_allocate(struct rte_vdev_device *dev, size_t 
private_data_size)
        struct rte_eth_dev *eth_dev;
        const char *name = rte_vdev_device_name(dev);
 
-       eth_dev = rte_eth_dev_allocate(name);
-       if (!eth_dev)
-               return NULL;
-
-       if (private_data_size) {
-               eth_dev->data->dev_private = rte_zmalloc_socket(name,
-                       private_data_size, RTE_CACHE_LINE_SIZE,
-                       dev->device.numa_node);
-               if (!eth_dev->data->dev_private) {
-                       rte_eth_dev_release_port(eth_dev);
+       if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+               eth_dev = rte_eth_dev_allocate(name);
+               if (!eth_dev)
                        return NULL;
+
+               if (private_data_size) {
+                       eth_dev->data->dev_private = rte_zmalloc_socket(name,
+                                       private_data_size, RTE_CACHE_LINE_SIZE,
+                                       dev->device.numa_node);
+                       if (!eth_dev->data->dev_private) {
+                               rte_eth_dev_release_port(eth_dev);
+                               return NULL;
+                       }
                }
+       } else {
+               eth_dev = rte_eth_dev_attach_secondary(name);
        }
 
        eth_dev->device = &dev->device;
        eth_dev->intr_handle = NULL;
-
        eth_dev->data->kdrv = RTE_KDRV_NONE;
        eth_dev->data->numa_node = dev->device.numa_node;
+
        return eth_dev;
 }
 
-- 
2.7.4