[dpdk-dev] [PATCH v2] 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.cui at intel.com>
Acked-by: Jingjing Wu <jingjing.wu at intel.com>
---
 drivers/net/iavf/iavf_ethdev.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index 7a8bec9c9..382530a43 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,
@@ -1419,6 +1421,21 @@ 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;
+
+	return iavf_dev_init(dev);
+}
+
 static int
 iavf_dcf_cap_check_handler(__rte_unused const char *key,
 			   const char *value, __rte_unused void *opaque)
-- 
2.17.1