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ethdev: check DD bit of specific RX descriptor

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Signed-off-by: Intel
This commit is contained in:
Intel 2013-07-23 00:00:00 +02:00 committed by Thomas Monjalon
parent 525ef82c4e
commit 6a6f2b57a3
2 changed files with 49 additions and 0 deletions
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15
lib/librte_ether/rte_ethdev.c
View File

@ -1739,6 +1739,21 @@ rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id)
FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_count, -ENOTSUP);
return (*dev->dev_ops->rx_queue_count)(dev, queue_id);
}
int
rte_eth_rx_descriptor_done(uint8_t port_id, uint16_t queue_id, uint16_t offset)
{
struct rte_eth_dev *dev;
if (port_id >= nb_ports) {
PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
return (-ENODEV);
}
dev = &rte_eth_devices[port_id];
FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_descriptor_done, -ENOTSUP);
return (*dev->dev_ops->rx_descriptor_done)( \
dev->data->rx_queues[queue_id], offset);
}
#endif
int

34
lib/librte_ether/rte_ethdev.h
View File

@ -782,6 +782,9 @@ 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 (*eth_rx_descriptor_done_t)(void *rxq, uint16_t offset);
/**< @Check DD bit of specific RX descriptor */
typedef int (*vlan_filter_set_t)(struct rte_eth_dev *dev,
uint16_t vlan_id,
int on);
@ -904,6 +907,7 @@ struct eth_dev_ops {
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_rx_descriptor_done_t rx_descriptor_done; /**< Check rxd DD bit */
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. */
@ -1734,6 +1738,36 @@ rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id)
}
#endif
/**
* Check if the DD bit of the specific RX descriptor in the queue has been set
*
* @param port_id
* The port identifier of the Ethernet device.
* @param queue_id
* The queue id on the specific port.
* @offset
* The offset of the descriptor ID from tail.
* @return
* - (1) if the specific DD bit is set.
* - (0) if the specific DD bit is not set.
* - (-ENODEV) if *port_id* invalid.
*/
#ifdef RTE_LIBRTE_ETHDEV_DEBUG
extern int rte_eth_rx_descriptor_done(uint8_t port_id,
uint16_t queue_id,
uint16_t offset);
#else
static inline int
rte_eth_rx_descriptor_done(uint8_t port_id, uint16_t queue_id, uint16_t offset)
{
struct rte_eth_dev *dev;
dev = &rte_eth_devices[port_id];
return (*dev->dev_ops->rx_descriptor_done)( \
dev->data->rx_queues[queue_id], offset);
}
#endif
/**
* Send a burst of output packets on a transmit queue of an Ethernet device.
*