A new ethernet device op is added to give application control over
the IP reassembly configuration. This operation is an optional
call from the application, default values are set by PMD and
exposed via rte_eth_dev_info.
Application should always first retreive the capabilities from
rte_eth_dev_info and then set the fields accordingly.
Signed-off-by: Akhil Goyal <gak...@marvell.com>
---
lib/ethdev/ethdev_driver.h | 19 +++++++++++++++++++
lib/ethdev/rte_ethdev.c | 30 ++++++++++++++++++++++++++++++
lib/ethdev/rte_ethdev.h | 28 ++++++++++++++++++++++++++++
lib/ethdev/version.map | 3 +++
4 files changed, 80 insertions(+)
diff --git a/lib/ethdev/ethdev_driver.h b/lib/ethdev/ethdev_driver.h
index d95605a355..0ed53c14f3 100644
--- a/lib/ethdev/ethdev_driver.h
+++ b/lib/ethdev/ethdev_driver.h
@@ -990,6 +990,22 @@ typedef int (*eth_representor_info_get_t)(struct
rte_eth_dev *dev,
typedef int (*eth_rx_metadata_negotiate_t)(struct rte_eth_dev *dev,
uint64_t *features);
+/**
+ * @internal
+ * Set configuration parameters for enabling IP reassembly offload in hardware.
+ *
+ * @param dev
+ * Port (ethdev) handle
+ *
+ * @param[in] conf
+ * Configuration parameters for IP reassembly.
+ *
+ * @return
+ * Negative errno value on error, zero otherwise
+ */
+typedef int (*eth_ip_reassembly_conf_set_t)(struct rte_eth_dev *dev,
+ struct rte_eth_ip_reass_params *conf);
+
/**
* @internal A structure containing the functions exported by an Ethernet
driver.
*/
@@ -1186,6 +1202,9 @@ struct eth_dev_ops {
* kinds of metadata to the PMD
*/
eth_rx_metadata_negotiate_t rx_metadata_negotiate;
+
+ /** Set IP reassembly configuration */
+ eth_ip_reassembly_conf_set_t ip_reassembly_conf_set;
};
/**
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index d9a03f12f9..ecc6c1fe37 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -6473,6 +6473,36 @@ rte_eth_rx_metadata_negotiate(uint16_t port_id, uint64_t
*features)
(*dev->dev_ops->rx_metadata_negotiate)(dev, features));
}
+int
+rte_eth_ip_reassembly_conf_set(uint16_t port_id,
+ struct rte_eth_ip_reass_params *conf)
+{
+ struct rte_eth_dev *dev;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+ dev = &rte_eth_devices[port_id];
+
+ if ((dev->data->dev_conf.rxmode.offloads &
+ RTE_ETH_RX_OFFLOAD_IP_REASSEMBLY) == 0) {
+ RTE_ETHDEV_LOG(ERR,
+ "The port (ID=%"PRIu16") is not configured for IP
reassembly\n",
+ port_id);
+ return -EINVAL;
+ }
+
+
+ if (conf == NULL) {
+ RTE_ETHDEV_LOG(ERR,
+ "Invalid IP reassembly configuration (NULL)\n");
+ return -EINVAL;
+ }
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->ip_reassembly_conf_set,
+ -ENOTSUP);
+ return eth_err(port_id,
+ (*dev->dev_ops->ip_reassembly_conf_set)(dev, conf));
+}
+
RTE_LOG_REGISTER_DEFAULT(rte_eth_dev_logtype, INFO);
RTE_INIT(ethdev_init_telemetry)
diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h
index 11427b2e4d..891f9a6e06 100644
--- a/lib/ethdev/rte_ethdev.h
+++ b/lib/ethdev/rte_ethdev.h
@@ -5218,6 +5218,34 @@ int rte_eth_representor_info_get(uint16_t port_id,
__rte_experimental
int rte_eth_rx_metadata_negotiate(uint16_t port_id, uint64_t *features);
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Set IP reassembly configuration parameters if device rx offload
+ * flag (RTE_ETH_RX_OFFLOAD_IP_REASSEMBLY) is enabled and the PMD
+ * supports IP reassembly offload. User should first check the
+ * reass_capa in rte_eth_dev_info before setting the configuration.
+ * The values of configuration parameters must not exceed the device
+ * capabilities. The use of this API is optional and if called, it
+ * should be called before rte_eth_dev_start().
+ *
+ * @param port_id
+ * The port identifier of the device.
+ * @param conf
+ * A pointer to rte_eth_ip_reass_params structure.
+ * @return
+ * - (-ENOTSUP) if offload configuration is not supported by device.
+ * - (-EINVAL) if offload is not enabled in rte_eth_conf.
+ * - (-ENODEV) if *port_id* invalid.
+ * - (-EIO) if device is removed.
+ * - (0) on success.
+ */
+__rte_experimental
+int rte_eth_ip_reassembly_conf_set(uint16_t port_id,
+ struct rte_eth_ip_reass_params *conf);
+
+
#include <rte_ethdev_core.h>
/**
diff --git a/lib/ethdev/version.map b/lib/ethdev/version.map
index c2fb0669a4..f08fe72044 100644
--- a/lib/ethdev/version.map
+++ b/lib/ethdev/version.map
@@ -256,6 +256,9 @@ EXPERIMENTAL {
rte_flow_flex_item_create;
rte_flow_flex_item_release;
rte_flow_pick_transfer_proxy;
+
+ #added in 22.03
+ rte_eth_ip_reassembly_conf_set;
};
INTERNAL {
--
2.25.1
