Add driver API rte_eth_release_port_private to support the
requirement that an ethdev only be released on secondary process,
so only local state be set to unused , share data will not be
reset so primary process can still use it.
Signed-off-by: Qi Zhang <qi.z.zh...@intel.com>
---
lib/librte_ethdev/rte_ethdev.c | 13 ++++++++++++-
lib/librte_ethdev/rte_ethdev_driver.h | 13 +++++++++++++
2 files changed, 25 insertions(+), 1 deletion(-)
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index a9977df97..2353fc921 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -359,6 +359,18 @@ rte_eth_dev_attach_secondary(const char *name)
}
int
+rte_eth_dev_release_port_private(struct rte_eth_dev *eth_dev)
+{
+ if (eth_dev == NULL)
+ return -EINVAL;
+
+ _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_DESTROY, NULL);
+ eth_dev->state = RTE_ETH_DEV_UNUSED;
+
+ return 0;
+}
+
+int
rte_eth_dev_release_port(struct rte_eth_dev *eth_dev)
{
if (eth_dev == NULL)
@@ -371,7 +383,6 @@ rte_eth_dev_release_port(struct rte_eth_dev *eth_dev)
rte_spinlock_lock(&rte_eth_dev_shared_data->ownership_lock);
eth_dev->state = RTE_ETH_DEV_UNUSED;
-
memset(eth_dev->data, 0, sizeof(struct rte_eth_dev_data));
rte_spinlock_unlock(&rte_eth_dev_shared_data->ownership_lock);
diff --git a/lib/librte_ethdev/rte_ethdev_driver.h
b/lib/librte_ethdev/rte_ethdev_driver.h
index c9c825e3f..49c27223d 100644
--- a/lib/librte_ethdev/rte_ethdev_driver.h
+++ b/lib/librte_ethdev/rte_ethdev_driver.h
@@ -70,6 +70,19 @@ int rte_eth_dev_release_port(struct rte_eth_dev *eth_dev);
/**
* @internal
+ * Release the specified ethdev port in local process, only set to ethdev
+ * state to unused, but not reset share data since it assume other process
+ * is still using it, typically it is called by secondary process.
+ *
+ * @param eth_dev
+ * The *eth_dev* pointer is the address of the *rte_eth_dev* structure.
+ * @return
+ * - 0 on success, negative on error
+ */
+int rte_eth_dev_release_port_private(struct rte_eth_dev *eth_dev);
+
+/**
+ * @internal
* Release device queues and clear its configuration to force the user
* application to reconfigure it. It is for internal use only.
*
--
2.13.6
