Implements driver support for fetching Tx and Rx queue information.
Signed-off-by: Remy Horton <remy.horton at intel.com>
---
doc/guides/rel_notes/release_2_3.rst | 4 +++
drivers/net/virtio/virtio_ethdev.c | 47 ++++++++++++++++++++++++++++++++++++
2 files changed, 51 insertions(+)
diff --git a/doc/guides/rel_notes/release_2_3.rst
b/doc/guides/rel_notes/release_2_3.rst
index 2ac48dd..e6dab98 100644
--- a/doc/guides/rel_notes/release_2_3.rst
+++ b/doc/guides/rel_notes/release_2_3.rst
@@ -9,6 +9,10 @@ New Features
Implemented driver functions for Register dumping, EEPROM dumping, and
setting of MAC address.
+* **virtio: Added ethdev support functions.**
+
+ Implemented Tx & Rx queue information fetching functions.
+
Resolved Issues
---------------
diff --git a/drivers/net/virtio/virtio_ethdev.c
b/drivers/net/virtio/virtio_ethdev.c
index d928339..032e4dc 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -95,6 +95,12 @@ static void virtio_mac_addr_add(struct rte_eth_dev *dev,
static void virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index);
static void virtio_mac_addr_set(struct rte_eth_dev *dev,
struct ether_addr *mac_addr);
+static void virtio_rxq_info_get(struct rte_eth_dev *dev,
+ uint16_t queue_id,
+ struct rte_eth_rxq_info *qinfo);
+static void virtio_txq_info_get(struct rte_eth_dev *dev,
+ uint16_t queue_id,
+ struct rte_eth_txq_info *qinfo);
static int virtio_dev_queue_stats_mapping_set(
__rte_unused struct rte_eth_dev *eth_dev,
@@ -620,6 +626,8 @@ 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
@@ -1672,6 +1680,45 @@ virtio_dev_info_get(struct rte_eth_dev *dev, struct
rte_eth_dev_info *dev_info)
};
}
+static 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->mp = rxq->mpool;
+ qinfo->scattered_rx = dev->data->scattered_rx;
+ qinfo->nb_desc = rxq->vq_nentries;
+
+ qinfo->conf.rx_free_thresh = rxq->vq_free_thresh;
+
+ /* Virtio does not have these */
+ qinfo->conf.rx_drop_en = 0;
+ qinfo->conf.rx_deferred_start = 0;
+}
+
+static 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->conf.tx_free_thresh = txq->vq_free_thresh;
+
+ /* Virtio does not have these */
+ qinfo->conf.tx_thresh.pthresh = 0;
+ qinfo->conf.tx_thresh.hthresh = 0;
+ qinfo->conf.tx_thresh.wthresh = 0;
+ qinfo->conf.tx_rs_thresh = 0;
+ qinfo->conf.txq_flags = 0;
+ qinfo->conf.tx_deferred_start = 0;
+}
+
/*
* It enables testpmd to collect per queue stats.
*/
--
2.5.0
