From 632be32735107a09672a897b6123b8dc4d15b6ae Mon Sep 17 00:00:00 2001 From: Jie Wang Date: Thu, 14 Oct 2021 18:31:23 +0800 Subject: [PATCH] ethdev: add API to get device configuration The driver may change offloads info into dev->data->dev_conf in dev_configure which may cause apps use outdated values. Add a new API to get actual device configuration. Signed-off-by: Jie Wang Acked-by: Andrew Rybchenko Reviewed-by: Ferruh Yigit Conflict: mv ethdev dir to librte_ethdev; move version.map to rte_ethdev_version.map; remove the modify of release_21_11.rst Reference: https://github.com/DPDK/dpdk/commit/632be32735107a09672a897b6123b8dc4d15b6ae --- lib/librte_ethdev/rte_ethdev.c | 20 ++++++++++++++++++++ lib/librte_ethdev/rte_ethdev.h | 18 ++++++++++++++++++ lib/librte_ethdev/rte_ethdev_version.map | 1 + 3 files changed, 39 insertions(+) diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c index 6e9cb24..8d99d40 100644 --- a/lib/librte_ethdev/rte_ethdev.c +++ b/lib/librte_ethdev/rte_ethdev.c @@ -3001,6 +3001,26 @@ 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) +{ + struct rte_eth_dev *dev; + + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); + dev = &rte_eth_devices[port_id]; + + if (dev_conf == NULL) { + RTE_ETHDEV_LOG(ERR, + "Cannot get ethdev port %u configuration to NULL\n", + port_id); + return -EINVAL; + } + + memcpy(dev_conf, &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/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h index 18a9def..02ba09e 100644 --- a/lib/librte_ethdev/rte_ethdev.h +++ b/lib/librte_ethdev/rte_ethdev.h @@ -2562,6 +2562,24 @@ 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 + * Location for Ethernet device configuration to be filled in. + * @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); + /** * Retrieve the firmware version of a device. * diff --git a/lib/librte_ethdev/rte_ethdev_version.map b/lib/librte_ethdev/rte_ethdev_version.map index a7dacf2..78cd812 100644 --- a/lib/librte_ethdev/rte_ethdev_version.map +++ b/lib/librte_ethdev/rte_ethdev_version.map @@ -227,4 +227,5 @@ EXPERIMENTAL { rte_flow_dynf_metadata_mask; rte_flow_dynf_metadata_register; rte_eth_dev_set_ptypes; + rte_eth_dev_conf_get; }; -- 2.30.0