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ethdev: retrieve RX available descriptors

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Signed-off-by: Intel
This commit is contained in:
Intel 2013-06-03 00:00:00 +00:00 committed by Thomas Monjalon
parent 249358424e
commit bc355ebf4f
2 changed files with 32 additions and 0 deletions
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14
lib/librte_ether/rte_ethdev.c
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@ -1649,6 +1649,20 @@ rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
return (*dev->tx_pkt_burst)(dev->data->tx_queues[queue_id],
tx_pkts, nb_pkts);
}
uint32_t
rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id)
{
struct rte_eth_dev *dev;
if (port_id >= nb_ports) {
PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
return 0;
}
dev = &rte_eth_devices[port_id];
FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_count, -ENOTSUP);
return (*dev->dev_ops->rx_queue_count)(dev, queue_id);
}
#endif
int

18
lib/librte_ether/rte_ethdev.h
View File

@ -754,6 +754,10 @@ typedef int (*eth_tx_queue_setup_t)(struct rte_eth_dev *dev,
typedef void (*eth_queue_release_t)(void *queue);
/**< @internal Release memory resources allocated by given RX/TX queue. */
typedef uint32_t (*eth_rx_queue_count_t)(struct rte_eth_dev *dev,
uint16_t rx_queue_id);
/**< Get number of available descriptors on a receive queue of an Ethernet device. */
typedef int (*vlan_filter_set_t)(struct rte_eth_dev *dev,
uint16_t vlan_id,
int on);
@ -875,6 +879,7 @@ struct eth_dev_ops {
vlan_offload_set_t vlan_offload_set; /**< Set VLAN Offload. */
eth_rx_queue_setup_t rx_queue_setup;/**< Set up device RX queue.*/
eth_queue_release_t rx_queue_release;/**< Release RX queue.*/
eth_rx_queue_count_t rx_queue_count; /**< Get Rx queue count. */
eth_tx_queue_setup_t tx_queue_setup;/**< Set up device TX queue.*/
eth_queue_release_t tx_queue_release;/**< Release TX queue.*/
eth_dev_led_on_t dev_led_on; /**< Turn on LED. */
@ -1672,6 +1677,19 @@ rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
}
#endif
#ifdef RTE_LIBRTE_ETHDEV_DEBUG
extern uint32_t rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id);
#else
static inline uint32_t
rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id)
{
struct rte_eth_dev *dev;
dev = &rte_eth_devices[port_id];
return (*dev->dev_ops->rx_queue_count)(dev, queue_id);
}
#endif
/**
* Send a burst of output packets on a transmit queue of an Ethernet device.
*