[PATCH v4 04/13] net/cpfl: support hairpin queue capbility get

[beilei.xing@intel.com]

From: Beilei Xing <beilei.xing@intel.com>

This patch adds hairpin_cap_get ops support.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Signed-off-by: Mingxia Liu <mingxia.liu@intel.com>
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
---
 drivers/net/cpfl/cpfl_ethdev.c | 18 ++++++++++++++++++
 drivers/net/cpfl/cpfl_rxtx.h   |  3 +++
 2 files changed, 21 insertions(+)

diff --git a/drivers/net/cpfl/cpfl_ethdev.c b/drivers/net/cpfl/cpfl_ethdev.c
index c1273a7478..40b4515539 100644
--- a/drivers/net/cpfl/cpfl_ethdev.c
+++ b/drivers/net/cpfl/cpfl_ethdev.c
@@ -154,6 +154,23 @@ cpfl_dev_link_update(struct rte_eth_dev *dev,
 	return rte_eth_linkstatus_set(dev, &new_link);
 }
 
+static int
+cpfl_hairpin_cap_get(struct rte_eth_dev *dev,
+		     struct rte_eth_hairpin_cap *cap)
+{
+	struct cpfl_vport *cpfl_vport = dev->data->dev_private;
+
+	if (cpfl_vport->p2p_q_chunks_info == NULL)
+		return -ENOTSUP;
+
+	cap->max_nb_queues = CPFL_MAX_P2P_NB_QUEUES;
+	cap->max_rx_2_tx = CPFL_MAX_HAIRPINQ_RX_2_TX;
+	cap->max_tx_2_rx = CPFL_MAX_HAIRPINQ_TX_2_RX;
+	cap->max_nb_desc = CPFL_MAX_HAIRPINQ_NB_DESC;
+
+	return 0;
+}
+
 static int
 cpfl_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 {
@@ -904,6 +921,7 @@ static const struct eth_dev_ops cpfl_eth_dev_ops = {
 	.xstats_get			= cpfl_dev_xstats_get,
 	.xstats_get_names		= cpfl_dev_xstats_get_names,
 	.xstats_reset			= cpfl_dev_xstats_reset,
+	.hairpin_cap_get		= cpfl_hairpin_cap_get,
 };
 
 static int
diff --git a/drivers/net/cpfl/cpfl_rxtx.h b/drivers/net/cpfl/cpfl_rxtx.h
index 1fe65778f0..a4a164d462 100644
--- a/drivers/net/cpfl/cpfl_rxtx.h
+++ b/drivers/net/cpfl/cpfl_rxtx.h
@@ -14,6 +14,9 @@
 #define CPFL_MAX_RING_DESC	4096
 #define CPFL_DMA_MEM_ALIGN	4096
 
+#define CPFL_MAX_HAIRPINQ_RX_2_TX	1
+#define CPFL_MAX_HAIRPINQ_TX_2_RX	1
+#define CPFL_MAX_HAIRPINQ_NB_DESC	1024
 #define CPFL_MAX_P2P_NB_QUEUES	16
 #define CPFL_P2P_NB_RX_BUFQ	1
 #define CPFL_P2P_NB_TX_COMPLQ	1
-- 
2.26.2