[dpdk-dev] [PATCH v7 3/9] null: extend number of virtual queues

[Tomasz Kulasek <tomaszx.kulasek@intel.com>]

Date: Fri, 30 Oct 2015 14:55:58 +0100
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 <1446213364-11856-1-git-send-email-tomaszx.kulasek@intel.com>

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@intel.com>

Acked-by: Tetsuya Mukawa <mukawa@igel.co.jp>

---

 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