From 2d2c4991b4109a6eec3405b019810e4e44ed3857 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <sthemmin@microsoft.com>
Date: Tue, 24 Jul 2018 14:08:52 -0700
Subject: [PATCH] net/netvsc: add queue info

This helps when diagnosing ring issues in testpmd.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
---
 drivers/net/netvsc/hn_ethdev.c |  2 ++
 drivers/net/netvsc/hn_rxtx.c   | 22 ++++++++++++++++++++++
 drivers/net/netvsc/hn_var.h    |  4 ++++
 3 files changed, 28 insertions(+)

diff --git a/drivers/net/netvsc/hn_ethdev.c b/drivers/net/netvsc/hn_ethdev.c
index 47ed760b82..78b842ba2d 100644
--- a/drivers/net/netvsc/hn_ethdev.c
+++ b/drivers/net/netvsc/hn_ethdev.c
@@ -536,6 +536,8 @@ static const struct eth_dev_ops hn_eth_dev_ops = {
 	.dev_stop		= hn_dev_stop,
 	.dev_close		= hn_dev_close,
 	.dev_infos_get		= hn_dev_info_get,
+	.txq_info_get		= hn_dev_tx_queue_info,
+	.rxq_info_get		= hn_dev_rx_queue_info,
 	.promiscuous_enable     = hn_dev_promiscuous_enable,
 	.promiscuous_disable    = hn_dev_promiscuous_disable,
 	.allmulticast_enable    = hn_dev_allmulticast_enable,
diff --git a/drivers/net/netvsc/hn_rxtx.c b/drivers/net/netvsc/hn_rxtx.c
index 3c03dc84f5..ec133d4d20 100644
--- a/drivers/net/netvsc/hn_rxtx.c
+++ b/drivers/net/netvsc/hn_rxtx.c
@@ -268,6 +268,17 @@ hn_dev_tx_queue_release(void *arg)
 	rte_free(txq);
 }
 
+void
+hn_dev_tx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
+		     struct rte_eth_txq_info *qinfo)
+{
+	struct hn_data *hv = dev->data->dev_private;
+	struct hn_tx_queue *txq = dev->data->rx_queues[queue_idx];
+
+	qinfo->conf.tx_free_thresh = txq->free_thresh;
+	qinfo->nb_desc = hv->tx_pool->size;
+}
+
 static void
 hn_nvs_send_completed(struct rte_eth_dev *dev, uint16_t queue_id,
 		      unsigned long xactid, const struct hn_nvs_rndis_ack *ack)
@@ -790,6 +801,17 @@ hn_dev_rx_queue_release(void *arg)
 	}
 }
 
+void
+hn_dev_rx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
+		     struct rte_eth_rxq_info *qinfo)
+{
+	struct hn_rx_queue *rxq = dev->data->rx_queues[queue_idx];
+
+	qinfo->mp = rxq->mb_pool;
+	qinfo->scattered_rx = 1;
+	qinfo->nb_desc = rte_ring_get_capacity(rxq->rx_ring);
+}
+
 static void
 hn_nvs_handle_notify(const struct vmbus_chanpkt_hdr *pkthdr,
 		     const void *data)
diff --git a/drivers/net/netvsc/hn_var.h b/drivers/net/netvsc/hn_var.h
index f0358c5822..3f3b442697 100644
--- a/drivers/net/netvsc/hn_var.h
+++ b/drivers/net/netvsc/hn_var.h
@@ -141,6 +141,8 @@ int	hn_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 			      uint16_t nb_desc, unsigned int socket_id,
 			      const struct rte_eth_txconf *tx_conf);
 void	hn_dev_tx_queue_release(void *arg);
+void	hn_dev_tx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
+			     struct rte_eth_txq_info *qinfo);
 
 struct hn_rx_queue *hn_rx_queue_alloc(struct hn_data *hv,
 				      uint16_t queue_id,
@@ -151,3 +153,5 @@ int	hn_dev_rx_queue_setup(struct rte_eth_dev *dev,
 			      const struct rte_eth_rxconf *rx_conf,
 			      struct rte_mempool *mp);
 void	hn_dev_rx_queue_release(void *arg);
+void	hn_dev_rx_queue_info(struct rte_eth_dev *dev, uint16_t queue_idx,
+			     struct rte_eth_rxq_info *qinfo);