The driver may change offloads info into dev->data->dev_conf
in dev_configure which may cause port->dev_conf and port->rx_conf
contain outdated values.
This patch adds a new API "rte_eth_dev_conf_get()" to help users
get device configuration info.
Add information about the new API in release notes.
Signed-off-by: Jie Wang <jie1x.w...@intel.com>
---
doc/guides/rel_notes/release_21_11.rst | 5 +++++
lib/ethdev/rte_ethdev.c | 23 +++++++++++++++++++++++
lib/ethdev/rte_ethdev.h | 21 +++++++++++++++++++++
lib/ethdev/version.map | 3 +++
4 files changed, 52 insertions(+)
diff --git a/doc/guides/rel_notes/release_21_11.rst
b/doc/guides/rel_notes/release_21_11.rst
index f099b1cca2..c16cc83fd1 100644
--- a/doc/guides/rel_notes/release_21_11.rst
+++ b/doc/guides/rel_notes/release_21_11.rst
@@ -129,6 +129,11 @@ New Features
* Added tests to validate packets hard expiry.
* Added tests to verify tunnel header verification in IPsec inbound.
+* **Added support for users get device configuration.**
+
+ * Added an API which can help users get device configuration.
+ The declarations for the API's can be found in ``rte_ethdev.h``.
+
Removed Items
-------------
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index daf5ca9242..ddbe34e276 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -3457,6 +3457,29 @@ rte_eth_dev_info_get(uint16_t port_id, struct
rte_eth_dev_info *dev_info)
return 0;
}
+int
+rte_eth_dev_conf_get(uint16_t port_id,
+ struct rte_eth_conf *dev_conf_info)
+{
+ struct rte_eth_dev *dev;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+ dev = &rte_eth_devices[port_id];
+
+ if (dev_conf_info == NULL) {
+ RTE_ETHDEV_LOG(ERR,
+ "Cannot get ethdev port %u configuration info to
NULL\n",
+ port_id);
+ return -EINVAL;
+ }
+
+ /* copy dev->data->dev_conf to dev_conf_info */
+ memcpy(dev_conf_info, &dev->data->dev_conf,
+ sizeof(struct rte_eth_conf));
+
+ return 0;
+}
+
int
rte_eth_dev_get_supported_ptypes(uint16_t port_id, uint32_t ptype_mask,
uint32_t *ptypes, int num)
diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h
index afdc53b674..2934b904ea 100644
--- a/lib/ethdev/rte_ethdev.h
+++ b/lib/ethdev/rte_ethdev.h
@@ -3082,6 +3082,27 @@ int rte_eth_macaddr_get(uint16_t port_id, struct
rte_ether_addr *mac_addr);
*/
int rte_eth_dev_info_get(uint16_t port_id, struct rte_eth_dev_info *dev_info);
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Retrieve the configuration of an Ethernet device.
+ *
+ * @param port_id
+ * The port identifier of the Ethernet device.
+ * @param dev_conf_info
+ * A pointer to a structure of type *rte_eth_conf* to be filled with
+ * the configuration of the Ethernet device.
+ * And the memory of the structure should be allocated by the caller.
+ * @return
+ * - (0) if successful.
+ * - (-ENODEV) if *port_id* invalid.
+ * - (-EINVAL) if bad parameter.
+ */
+__rte_experimental
+int rte_eth_dev_conf_get(uint16_t port_id,
+ struct rte_eth_conf *dev_conf_info);
+
/**
* Retrieve the firmware version of a device.
*
diff --git a/lib/ethdev/version.map b/lib/ethdev/version.map
index 904bce6ea1..06f1d8da48 100644
--- a/lib/ethdev/version.map
+++ b/lib/ethdev/version.map
@@ -247,6 +247,9 @@ EXPERIMENTAL {
rte_mtr_meter_policy_delete;
rte_mtr_meter_policy_update;
rte_mtr_meter_policy_validate;
+
+ # added in 21.11
+ rte_eth_dev_conf_get;
};
INTERNAL {
--
2.25.1
