[dpdk-dev] [PATCH 42/63] net/ice/base: add routine for tunnel port query

[Qi Zhang]

Add ice_get_open_tunnel_port routine, which can be used to find
an open tunnel port for creating switch and flow director training
packets.

Signed-off-by: Dan Nowlin <dan.nowlin at intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr at intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
 drivers/net/ice/base/ice_flex_pipe.c | 22 ++++++++++++++++++++++
 drivers/net/ice/base/ice_flex_pipe.h |  3 +++
 2 files changed, 25 insertions(+)

diff --git a/drivers/net/ice/base/ice_flex_pipe.c b/drivers/net/ice/base/ice_flex_pipe.c
index 3beb4d961..8161ccaec 100644
--- a/drivers/net/ice/base/ice_flex_pipe.c
+++ b/drivers/net/ice/base/ice_flex_pipe.c
@@ -1874,6 +1874,28 @@ ice_find_free_tunnel_entry(struct ice_hw *hw, enum ice_tunnel_type type,
 }
 
 /**
+ * ice_get_tunnel_port - retrieve an open tunnel port
+ * @hw: pointer to the HW structure
+ * @type: tunnel type (TNL_ALL will return any open port)
+ * @port: returns open port
+ */
+bool
+ice_get_open_tunnel_port(struct ice_hw *hw, enum ice_tunnel_type type,
+			 u16 *port)
+{
+	u16 i;
+
+	for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++)
+		if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].in_use &&
+		    (type == TNL_ALL || hw->tnl.tbl[i].type == type)) {
+			*port = hw->tnl.tbl[i].port;
+			return true;
+		}
+
+	return false;
+}
+
+/**
  * ice_create_tunnel
  * @hw: pointer to the HW structure
  * @type: type of tunnel
diff --git a/drivers/net/ice/base/ice_flex_pipe.h b/drivers/net/ice/base/ice_flex_pipe.h
index 17285efe0..ab1663574 100644
--- a/drivers/net/ice/base/ice_flex_pipe.h
+++ b/drivers/net/ice/base/ice_flex_pipe.h
@@ -36,6 +36,9 @@ ice_get_sw_fv_bitmap(struct ice_hw *hw, enum ice_prof_type type,
 enum ice_status
 ice_get_sw_fv_list(struct ice_hw *hw, u16 *prot_ids, u8 ids_cnt,
 		   ice_bitmap_t *bm, struct LIST_HEAD_TYPE *fv_list);
+bool
+ice_get_open_tunnel_port(struct ice_hw *hw, enum ice_tunnel_type type,
+			 u16 *port);
 enum ice_status
 ice_create_tunnel(struct ice_hw *hw, enum ice_tunnel_type type, u16 port);
 enum ice_status ice_destroy_tunnel(struct ice_hw *hw, u16 port, bool all);
-- 
2.13.6