[dpdk-dev] [PATCH v5 3/9] null: extend number of virtual queues

[Tomasz Kulasek]

This patch adds a possibility to configure more than one queue on null
device.

v5 changes:
 - fixed queues number configuration (using internals->nb_*_queues instead
   of dev->data->nb_*_queues)

Signed-off-by: Tomasz Kulasek <tomaszx.kulasek at intel.com>
---
 drivers/net/null/rte_eth_null.c |   28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c
index c748101..bf81b1b 100644
--- a/drivers/net/null/rte_eth_null.c
+++ b/drivers/net/null/rte_eth_null.c
@@ -71,8 +71,8 @@ struct pmd_internals {
        unsigned nb_rx_queues;
        unsigned nb_tx_queues;

-       struct null_queue rx_null_queues[1];
-       struct null_queue tx_null_queues[1];
+       struct null_queue rx_null_queues[RTE_MAX_QUEUES_PER_PORT];
+       struct null_queue tx_null_queues[RTE_MAX_QUEUES_PER_PORT];
 };


@@ -178,7 +178,15 @@ eth_null_copy_tx(void *q, struct rte_mbuf **bufs, uint16_t 
nb_bufs)
 }

 static int
-eth_dev_configure(struct rte_eth_dev *dev __rte_unused) { return 0; }
+eth_dev_configure(struct rte_eth_dev *dev) {
+       struct pmd_internals *internals;
+
+       internals = dev->data->dev_private;
+       internals->nb_rx_queues = dev->data->nb_rx_queues;
+       internals->nb_tx_queues = dev->data->nb_tx_queues;
+
+       return 0;
+}

 static int
 eth_dev_start(struct rte_eth_dev *dev)
@@ -213,10 +221,11 @@ eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t 
rx_queue_id,
        if ((dev == NULL) || (mb_pool == NULL))
                return -EINVAL;

-       if (rx_queue_id != 0)
+       internals = dev->data->dev_private;
+
+       if (rx_queue_id >= internals->nb_rx_queues)
                return -ENODEV;

-       internals = dev->data->dev_private;
        packet_size = internals->packet_size;

        internals->rx_null_queues[rx_queue_id].mb_pool = mb_pool;
@@ -246,10 +255,11 @@ eth_tx_queue_setup(struct rte_eth_dev *dev, uint16_t 
tx_queue_id,
        if (dev == NULL)
                return -EINVAL;

-       if (tx_queue_id != 0)
+       internals = dev->data->dev_private;
+
+       if (tx_queue_id >= internals->nb_tx_queues)
                return -ENODEV;

-       internals = dev->data->dev_private;
        packet_size = internals->packet_size;

        dev->data->tx_queues[tx_queue_id] =
@@ -279,8 +289,8 @@ eth_dev_info(struct rte_eth_dev *dev,
        dev_info->driver_name = drivername;
        dev_info->max_mac_addrs = 1;
        dev_info->max_rx_pktlen = (uint32_t)-1;
-       dev_info->max_rx_queues = (uint16_t)internals->nb_rx_queues;
-       dev_info->max_tx_queues = (uint16_t)internals->nb_tx_queues;
+       dev_info->max_rx_queues = RTE_DIM(internals->rx_null_queues);
+       dev_info->max_tx_queues = RTE_DIM(internals->tx_null_queues);
        dev_info->min_rx_bufsize = 0;
        dev_info->pci_dev = NULL;
 }
-- 
1.7.9.5