[dpdk-dev] [PATCH v6 1/2] ethdev: add an API to get device configuration info
From: Jie Wang <hidden>
Date: 2021-08-24 09:12:59
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
This patch adds a new API "rte_eth_dev_conf_info_get()" to help testpmd get device configuration info. Signed-off-by: Jie Wang <redacted> --- lib/ethdev/rte_ethdev.c | 27 +++++++++++++++++++++++++++ lib/ethdev/rte_ethdev.h | 26 ++++++++++++++++++++++++++ 2 files changed, 53 insertions(+)
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index 9d95cd11e1..74184099a1 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c@@ -3458,6 +3458,33 @@ rte_eth_dev_info_get(uint16_t port_id, struct rte_eth_dev_info *dev_info) return 0; } +int +rte_eth_dev_conf_info_get(uint16_t port_id, + struct rte_eth_dev_conf_info *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 config info to NULL\n", + port_id); + return -EINVAL; + } + + /* + * Init dev_conf_info before port_id check since caller does not have + * return status and does not know if get is successful or not. + */ + memset(dev_conf_info, 0, sizeof(struct rte_eth_dev_conf_info)); + + dev_conf_info->rx_offloads = dev->data->dev_conf.rxmode.offloads; + dev_conf_info->tx_offloads = dev->data->dev_conf.txmode.offloads; + + 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 d2b27c351f..70a2db550f 100644
--- a/lib/ethdev/rte_ethdev.h
+++ b/lib/ethdev/rte_ethdev.h@@ -1587,6 +1587,15 @@ struct rte_eth_dev_info { void *reserved_ptrs[2]; /**< Reserved for future fields */ }; +/** + * Ethernet device configuration information structure. + * Used to retrieve information about configured device. + */ +struct rte_eth_dev_conf_info { + uint64_t rx_offloads; /**rxmode offloads */ + uint64_t tx_offloads; /**txmode offloads */ +}; + /** * RX/TX queue states */
@@ -3058,6 +3067,23 @@ 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); +/** + * Retrieve the contextual information 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_dev_conf_info* to be filled with + * the contextual information of the Ethernet device. + * @return + * - (0) if successful. + * - (-ENOTSUP) if support for dev_infos_get() does not exist for the device. + * - (-ENODEV) if *port_id* invalid. + * - (-EINVAL) if bad parameter. + */ +int rte_eth_dev_conf_info_get(uint16_t port_id, + struct rte_eth_dev_conf_info *dev_conf_info); + /** * Retrieve the firmware version of a device. *
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2.25.1