[dpdk-dev] [PATCH v4 2/5] ethdev: support attach vdev in secondary process

[Jianfeng Tan <jianfeng.tan@intel.com>]

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.tan@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