From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wenzhuo Lu Subject: [PATCH 1/8] lib/librte_ether: support device reset Date: Mon, 6 Jun 2016 13:40:46 +0800 Message-ID: <1465191653-28408-2-git-send-email-wenzhuo.lu@intel.com> References: <1465191653-28408-1-git-send-email-wenzhuo.lu@intel.com> Cc: Wenzhuo Lu To: dev@dpdk.org Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id B92762C0A for ; Mon, 6 Jun 2016 07:41:03 +0200 (CEST) In-Reply-To: <1465191653-28408-1-git-send-email-wenzhuo.lu@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add an API to reset the device. It's for VF device in this scenario, kernel PF + DPDK VF. When the PF port down/up, APP should call this API to reset VF port. Most likely, APP should call it in its management thread and guarantee the thread safe. Signed-off-by: Wenzhuo Lu --- lib/librte_ether/rte_ethdev.c | 17 +++++++++++++++++ lib/librte_ether/rte_ethdev.h | 14 ++++++++++++++ lib/librte_ether/rte_ether_version.map | 7 +++++++ 3 files changed, 38 insertions(+) diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index e148028..e43dca9 100644 --- a/lib/librte_ether/rte_ethdev.c +++ b/lib/librte_ether/rte_ethdev.c @@ -3346,3 +3346,20 @@ rte_eth_dev_l2_tunnel_offload_set(uint8_t port_id, -ENOTSUP); return (*dev->dev_ops->l2_tunnel_offload_set)(dev, l2_tunnel, mask, en); } + +int +rte_eth_dev_reset(uint8_t port_id) +{ + struct rte_eth_dev *dev; + int diag; + + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL); + + dev = &rte_eth_devices[port_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_reset, -ENOTSUP); + + diag = (*dev->dev_ops->dev_reset)(dev); + + return diag; +} diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index 2757510..74e895f 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -1318,6 +1318,9 @@ typedef int (*eth_l2_tunnel_offload_set_t) uint8_t en); /**< @internal enable/disable the l2 tunnel offload functions */ +typedef int (*eth_dev_reset_t)(struct rte_eth_dev *dev); +/**< @internal Function used to reset a configured Ethernet device. */ + #ifdef RTE_NIC_BYPASS enum { @@ -1508,6 +1511,8 @@ struct eth_dev_ops { eth_l2_tunnel_eth_type_conf_t l2_tunnel_eth_type_conf; /** Enable/disable l2 tunnel offload functions */ eth_l2_tunnel_offload_set_t l2_tunnel_offload_set; + /** Reset device. */ + eth_dev_reset_t dev_reset; }; /** @@ -4253,6 +4258,15 @@ rte_eth_dev_l2_tunnel_offload_set(uint8_t port_id, uint32_t mask, uint8_t en); +/** + * Reset an Ethernet device. + * + * @param port_id + * The port identifier of the Ethernet device. + */ +int +rte_eth_dev_reset(uint8_t port_id); + #ifdef __cplusplus } #endif diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map index 214ecc7..c34207e 100644 --- a/lib/librte_ether/rte_ether_version.map +++ b/lib/librte_ether/rte_ether_version.map @@ -132,3 +132,10 @@ DPDK_16.04 { rte_eth_tx_buffer_set_err_callback; } DPDK_2.2; + +DPDK_16.07 { + global: + + rte_eth_dev_reset; + +} DPDK_16.04; -- 1.9.3