[dpdk-dev] [PATCH] net/iavf: enable port reset

[Lunyuan Cui]

This patch is intended to add iavf_dev_reset ops, enable iavf to support
"port reset all".

Signed-off-by: Lunyuan Cui <lunyuanx....@intel.com>
---
 drivers/net/iavf/iavf_ethdev.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index 34913f9c4..01366bc3c 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -32,6 +32,7 @@ static int iavf_dev_configure(struct rte_eth_dev *dev);
 static int iavf_dev_start(struct rte_eth_dev *dev);
 static void iavf_dev_stop(struct rte_eth_dev *dev);
 static void iavf_dev_close(struct rte_eth_dev *dev);
+static int  iavf_dev_reset(struct rte_eth_dev *dev);
 static int iavf_dev_info_get(struct rte_eth_dev *dev,
                             struct rte_eth_dev_info *dev_info);
 static const uint32_t *iavf_dev_supported_ptypes_get(struct rte_eth_dev *dev);
@@ -91,6 +92,7 @@ static const struct eth_dev_ops iavf_eth_dev_ops = {
        .dev_start                  = iavf_dev_start,
        .dev_stop                   = iavf_dev_stop,
        .dev_close                  = iavf_dev_close,
+       .dev_reset                  = iavf_dev_reset,
        .dev_infos_get              = iavf_dev_info_get,
        .dev_supported_ptypes_get   = iavf_dev_supported_ptypes_get,
        .link_update                = iavf_dev_link_update,
@@ -1416,6 +1418,23 @@ iavf_dev_uninit(struct rte_eth_dev *dev)
        return 0;
 }
 
+/*
+ * Reset VF device only to re-initialize resources in PMD layer
+ */
+static int
+iavf_dev_reset(struct rte_eth_dev *dev)
+{
+       int ret;
+
+       ret = iavf_dev_uninit(dev);
+       if (ret)
+               return ret;
+
+       ret = iavf_dev_init(dev);
+
+       return ret;
+}
+
 static int eth_iavf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
                             struct rte_pci_device *pci_dev)
 {
-- 
2.17.1