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From: Amine Kherbouche <amine.kherbouche@6wind.com>
To: dev@dpdk.org
Date: Tue, 20 Oct 2015 00:06:21 +0200
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Cc: amine.kherbouche@6wind.com
Subject: [dpdk-dev] [dpdk-dev,
PATCHv6 3/6] virtio: add support for eth_(rxq|txq)_info_get
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In the case of virtio, there are many fields in rte_eth_(tx|rxq)_info
struct that aren't set in this function because those fields are
missed in virtqueue struct.
Signed-off-by: Amine Kherbouche <amine.kherbouche@6wind.com>
---
drivers/net/virtio/virtio_ethdev.c | 28 ++++++++++++++++++++++++++++
drivers/net/virtio/virtio_ethdev.h | 4 ++++
2 files changed, 32 insertions(+)
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 465d3cd..6118913 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -580,6 +580,8 @@ static const struct eth_dev_ops virtio_eth_dev_ops = {
.mac_addr_add = virtio_mac_addr_add,
.mac_addr_remove = virtio_mac_addr_remove,
.mac_addr_set = virtio_mac_addr_set,
+ .rxq_info_get = virtio_rxq_info_get,
+ .txq_info_get = virtio_txq_info_get,
};
static inline int
@@ -1574,4 +1576,30 @@ static struct rte_driver rte_virtio_driver = {
.init = rte_virtio_pmd_init,
};
+void
+virtio_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
+ struct rte_eth_rxq_info *qinfo)
+{
+ struct virtqueue *rxq;
+
+ rxq = dev->data->rx_queues[queue_id];
+
+ qinfo->nb_desc = rxq->vq_nentries;
+ qinfo->used_desc = rxq->vq_nentries - rxq->vq_free_cnt;
+ qinfo->free_desc= rxq->vq_free_cnt;
+}
+
+void
+virtio_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
+ struct rte_eth_txq_info *qinfo)
+{
+ struct virtqueue *txq;
+
+ txq = dev->data->tx_queues[queue_id];
+
+ qinfo->nb_desc = txq->vq_nentries;
+ qinfo->used_desc = txq->vq_nentries - txq->vq_free_cnt;
+ qinfo->free_desc= txq->vq_free_cnt;
+}
+
PMD_REGISTER_DRIVER(rte_virtio_driver);
diff --git a/drivers/net/virtio/virtio_ethdev.h b/drivers/net/virtio/virtio_ethdev.h
index 9026d42..1bbe421 100644
--- a/drivers/net/virtio/virtio_ethdev.h
+++ b/drivers/net/virtio/virtio_ethdev.h
@@ -107,7 +107,11 @@ uint16_t virtio_recv_mergeable_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t virtio_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
+void virtio_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
+ struct rte_eth_rxq_info *qinfo);
+void virtio_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
+ struct rte_eth_txq_info *qinfo);
/*
* The VIRTIO_NET_F_GUEST_TSO[46] features permit the host to send us
--
1.7.10.4