net/sfc: get RxQ pending descriptors count

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andrew Lee <alee@solarflare.com>
Reviewed-by: Robert Stonehouse <rstonehouse@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2016-12-15 12:51:08 +00:00 committed by Ferruh Yigit
parent 9e6122231a
commit 04aa6b9c5f
3 changed files with 30 additions and 0 deletions

View File

@ -844,6 +844,16 @@ sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
sfc_adapter_unlock(sa);
}
static uint32_t
sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
{
struct sfc_adapter *sa = dev->data->dev_private;
sfc_log_init(sa, "RxQ=%u", rx_queue_id);
return sfc_rx_qdesc_npending(sa, rx_queue_id);
}
static const struct eth_dev_ops sfc_eth_dev_ops = {
.dev_configure = sfc_dev_configure,
.dev_start = sfc_dev_start,
@ -864,6 +874,7 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
.mtu_set = sfc_dev_set_mtu,
.rx_queue_setup = sfc_rx_queue_setup,
.rx_queue_release = sfc_rx_queue_release,
.rx_queue_count = sfc_rx_queue_count,
.tx_queue_setup = sfc_tx_queue_setup,
.tx_queue_release = sfc_tx_queue_release,
.flow_ctrl_get = sfc_flow_ctrl_get,

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@ -257,6 +257,22 @@ sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
return done_pkts;
}
unsigned int
sfc_rx_qdesc_npending(struct sfc_adapter *sa, unsigned int sw_index)
{
struct sfc_rxq *rxq;
SFC_ASSERT(sw_index < sa->rxq_count);
rxq = sa->rxq_info[sw_index].rxq;
if (rxq == NULL || (rxq->state & SFC_RXQ_RUNNING) == 0)
return 0;
sfc_ev_qpoll(rxq->evq);
return rxq->pending - rxq->completed;
}
static void
sfc_rx_qpurge(struct sfc_rxq *rxq)
{

View File

@ -140,6 +140,9 @@ void sfc_rx_qflush_failed(struct sfc_rxq *rxq);
uint16_t sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
unsigned int sfc_rx_qdesc_npending(struct sfc_adapter *sa,
unsigned int sw_index);
#ifdef __cplusplus
}
#endif