[dpdk-dev] [PATCH 1/6] net/mlx5: introduce non-cached flows tailq list

[Bing Zhao <bingz@mellanox.com>]

A new tailq head is introduced in the mlx5 private structure for each
device. Then all the flows created by user are moved into this tailq
list. This is the first stage to separate the flows with DV mode from
the flows with Verbs mode.

Signed-off-by: Bing Zhao <bingz@mellanox.com>
---
 drivers/net/mlx5/mlx5.c         |  3 ++-
 drivers/net/mlx5/mlx5.h         |  3 ++-
 drivers/net/mlx5/mlx5_flow.c    | 16 ++++++++--------
 drivers/net/mlx5/mlx5_trigger.c |  6 +++---
 4 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index f80e403..dc4fbbc 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -2674,7 +2674,8 @@ struct mlx5_flow_id_pool *
 				      mlx5_ifindex(eth_dev),
 				      eth_dev->data->mac_addrs,
 				      MLX5_MAX_MAC_ADDRESSES);
-	TAILQ_INIT(&priv->flows);
+	TAILQ_INIT(&priv->cached_flows);
+	TAILQ_INIT(&priv->noncached_flows);
 	TAILQ_INIT(&priv->ctrl_flows);
 	TAILQ_INIT(&priv->flow_meters);
 	TAILQ_INIT(&priv->flow_meter_profiles);
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index d7c519b..65bdb3b 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -515,7 +515,8 @@ struct mlx5_priv {
 	unsigned int (*reta_idx)[]; /* RETA index table. */
 	unsigned int reta_idx_n; /* RETA index size. */
 	struct mlx5_drop drop_queue; /* Flow drop queues. */
-	struct mlx5_flows flows; /* RTE Flow rules. */
+	struct mlx5_flows cached_flows; /* cached RTE Flow rules. */
+	struct mlx5_flows noncached_flows; /* non-cached RTE Flow rules. */
 	struct mlx5_flows ctrl_flows; /* Control flow rules. */
 	LIST_HEAD(rxq, mlx5_rxq_ctrl) rxqsctrl; /* DPDK Rx queues. */
 	LIST_HEAD(rxqobj, mlx5_rxq_obj) rxqsobj; /* Verbs/DevX Rx queues. */
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 144e07c..d7fb094 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -4357,7 +4357,7 @@ struct rte_flow *
 {
 	struct mlx5_priv *priv = dev->data->dev_private;
 
-	return flow_list_create(dev, &priv->flows,
+	return flow_list_create(dev, &priv->noncached_flows,
 				attr, items, actions, true, error);
 }
 
@@ -4490,7 +4490,7 @@ struct rte_flow *
 	struct rte_flow *flow;
 	int ret = 0;
 
-	TAILQ_FOREACH(flow, &priv->flows, next) {
+	TAILQ_FOREACH(flow, &priv->noncached_flows, next) {
 		DRV_LOG(DEBUG, "port %u flow %p still referenced",
 			dev->data->port_id, (void *)flow);
 		++ret;
@@ -4674,7 +4674,7 @@ struct rte_flow *
 {
 	struct mlx5_priv *priv = dev->data->dev_private;
 
-	flow_list_destroy(dev, &priv->flows, flow);
+	flow_list_destroy(dev, &priv->noncached_flows, flow);
 	return 0;
 }
 
@@ -4690,7 +4690,7 @@ struct rte_flow *
 {
 	struct mlx5_priv *priv = dev->data->dev_private;
 
-	mlx5_flow_list_flush(dev, &priv->flows);
+	mlx5_flow_list_flush(dev, &priv->noncached_flows);
 	return 0;
 }
 
@@ -5004,7 +5004,7 @@ struct rte_flow *
 	struct rte_flow *flow = NULL;
 
 	MLX5_ASSERT(fdir_flow);
-	TAILQ_FOREACH(flow, &priv->flows, next) {
+	TAILQ_FOREACH(flow, &priv->noncached_flows, next) {
 		if (flow->fdir && !flow_fdir_cmp(flow->fdir, fdir_flow)) {
 			DRV_LOG(DEBUG, "port %u found FDIR flow %p",
 				dev->data->port_id, (void *)flow);
@@ -5047,7 +5047,7 @@ struct rte_flow *
 		rte_errno = EEXIST;
 		goto error;
 	}
-	flow = flow_list_create(dev, &priv->flows, &fdir_flow->attr,
+	flow = flow_list_create(dev, &priv->noncached_flows, &fdir_flow->attr,
 				fdir_flow->items, fdir_flow->actions, true,
 				NULL);
 	if (!flow)
@@ -5092,7 +5092,7 @@ struct rte_flow *
 		rte_errno = ENOENT;
 		return -rte_errno;
 	}
-	flow_list_destroy(dev, &priv->flows, flow);
+	flow_list_destroy(dev, &priv->noncached_flows, flow);
 	DRV_LOG(DEBUG, "port %u deleted FDIR flow %p",
 		dev->data->port_id, (void *)flow);
 	return 0;
@@ -5132,7 +5132,7 @@ struct rte_flow *
 {
 	struct mlx5_priv *priv = dev->data->dev_private;
 
-	mlx5_flow_list_flush(dev, &priv->flows);
+	mlx5_flow_list_flush(dev, &priv->noncached_flows);
 }
 
 /**
diff --git a/drivers/net/mlx5/mlx5_trigger.c b/drivers/net/mlx5/mlx5_trigger.c
index be47df5..0053847 100644
--- a/drivers/net/mlx5/mlx5_trigger.c
+++ b/drivers/net/mlx5/mlx5_trigger.c
@@ -320,7 +320,7 @@
 			dev->data->port_id);
 		goto error;
 	}
-	ret = mlx5_flow_start(dev, &priv->flows);
+	ret = mlx5_flow_start(dev, &priv->noncached_flows);
 	if (ret) {
 		DRV_LOG(DEBUG, "port %u failed to set flows",
 			dev->data->port_id);
@@ -337,7 +337,7 @@
 	ret = rte_errno; /* Save rte_errno before cleanup. */
 	/* Rollback. */
 	dev->data->dev_started = 0;
-	mlx5_flow_stop(dev, &priv->flows);
+	mlx5_flow_stop(dev, &priv->noncached_flows);
 	mlx5_traffic_disable(dev);
 	mlx5_txq_stop(dev);
 	mlx5_rxq_stop(dev);
@@ -367,7 +367,7 @@
 	mlx5_mp_req_stop_rxtx(dev);
 	usleep(1000 * priv->rxqs_n);
 	DRV_LOG(DEBUG, "port %u stopping device", dev->data->port_id);
-	mlx5_flow_stop(dev, &priv->flows);
+	mlx5_flow_stop(dev, &priv->noncached_flows);
 	mlx5_traffic_disable(dev);
 	mlx5_rx_intr_vec_disable(dev);
 	mlx5_dev_interrupt_handler_uninstall(dev);
-- 
1.8.3.1