[PATCH] net/nfp: only flush specified port flow table

[Chaoyong He]

From: Jin Liu <jin.liu at corigine.com>

The flow flush function will destroy all the flow table on all the
port of NFP nic rather than the provide port. Modify logic, only
destroy the flow table on the corresponding port.

Fixes: 30ecce522732 ("net/nfp: support flow API")
Cc: stable at dpdk.org

Signed-off-by: Jin Liu <jin.liu at corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he at corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund at corigine.com>
---
 drivers/net/nfp/nfp_flow.c | 18 +++++++++++++-----
 drivers/net/nfp/nfp_flow.h |  1 +
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/net/nfp/nfp_flow.c b/drivers/net/nfp/nfp_flow.c
index 4d4d21d997..bc28edee4c 100644
--- a/drivers/net/nfp/nfp_flow.c
+++ b/drivers/net/nfp/nfp_flow.c
@@ -339,7 +339,7 @@ nfp_flow_table_search(struct nfp_flow_priv *priv,
 }
 
 static struct rte_flow *
-nfp_flow_alloc(struct nfp_fl_key_ls *key_layer)
+nfp_flow_alloc(struct nfp_fl_key_ls *key_layer, uint32_t port_id)
 {
 	char *tmp;
 	size_t len;
@@ -357,6 +357,7 @@ nfp_flow_alloc(struct nfp_fl_key_ls *key_layer)
 
 	nfp_flow->length = len;
 	nfp_flow->mtr_id       = NFP_MAX_MTR_CNT;
+	nfp_flow->port_id      = port_id;
 	payload                = &nfp_flow->payload;
 	payload->meta          = (struct nfp_fl_rule_metadata *)tmp;
 	payload->unmasked_data = tmp + sizeof(struct nfp_fl_rule_metadata);
@@ -3549,7 +3550,7 @@ nfp_flow_process(struct nfp_flower_representor *representor,
 		return NULL;
 	}
 
-	nfp_flow = nfp_flow_alloc(&key_layer);
+	nfp_flow = nfp_flow_alloc(&key_layer, representor->port_id);
 	if (nfp_flow == NULL) {
 		PMD_DRV_LOG(ERR, "Alloc nfp flow failed.");
 		goto free_stats;
@@ -3880,14 +3881,21 @@ nfp_flow_flush(struct rte_eth_dev *dev,
 	void *next_data;
 	uint32_t iter = 0;
 	const void *next_key;
+	struct rte_flow *nfp_flow;
 	struct nfp_flow_priv *priv;
+	struct nfp_flower_representor *representor;
+
+	representor = dev->data->dev_private;
 
 	priv = nfp_flow_dev_to_priv(dev);
 
 	while (rte_hash_iterate(priv->flow_table, &next_key, &next_data, &iter) >= 0) {
-		ret = nfp_flow_destroy(dev, (struct rte_flow *)next_data, error);
-		if (ret != 0)
-			break;
+		nfp_flow = next_data;
+		if (nfp_flow->port_id == representor->port_id) {
+			ret = nfp_flow_destroy(dev, nfp_flow, error);
+			if (ret != 0)
+				break;
+		}
 	}
 
 	return ret;
diff --git a/drivers/net/nfp/nfp_flow.h b/drivers/net/nfp/nfp_flow.h
index b8da752a9d..d352671c2c 100644
--- a/drivers/net/nfp/nfp_flow.h
+++ b/drivers/net/nfp/nfp_flow.h
@@ -223,6 +223,7 @@ struct rte_flow {
 	size_t length;
 	uint32_t hash_key;
 	uint32_t mtr_id;
+	uint32_t port_id;
 	bool install_flag;
 	enum nfp_flow_type type;
 };
-- 
2.29.3