net/sfc: support deferred start of receive queues

[dpdk.git] / drivers / net / sfc / sfc_ethdev.c

diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index ad6f813..d3c2a35 100644 (file)
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -839,6 +839,8 @@ sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
        qinfo->mp = rxq->refill_mb_pool;
        qinfo->conf.rx_free_thresh = rxq->refill_threshold;
        qinfo->conf.rx_drop_en = 1;
+       qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
+       qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
        qinfo->nb_desc = rxq_info->entries;
 
        sfc_adapter_unlock(sa);
@@ -854,6 +856,62 @@ sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
        return sfc_rx_qdesc_npending(sa, rx_queue_id);
 }
 
+static int
+sfc_rx_descriptor_done(void *queue, uint16_t offset)
+{
+       struct sfc_rxq *rxq = queue;
+
+       return sfc_rx_qdesc_done(rxq, offset);
+}
+
+static int
+sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       int rc;
+
+       sfc_log_init(sa, "RxQ=%u", rx_queue_id);
+
+       sfc_adapter_lock(sa);
+
+       rc = EINVAL;
+       if (sa->state != SFC_ADAPTER_STARTED)
+               goto fail_not_started;
+
+       rc = sfc_rx_qstart(sa, rx_queue_id);
+       if (rc != 0)
+               goto fail_rx_qstart;
+
+       sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
+
+       sfc_adapter_unlock(sa);
+
+       return 0;
+
+fail_rx_qstart:
+fail_not_started:
+       sfc_adapter_unlock(sa);
+       SFC_ASSERT(rc > 0);
+       return -rc;
+}
+
+static int
+sfc_rx_queue_stop(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);
+
+       sfc_adapter_lock(sa);
+       sfc_rx_qstop(sa, rx_queue_id);
+
+       sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
+
+       sfc_adapter_unlock(sa);
+
+       return 0;
+}
+
 static const struct eth_dev_ops sfc_eth_dev_ops = {
        .dev_configure                  = sfc_dev_configure,
        .dev_start                      = sfc_dev_start,
@@ -872,9 +930,12 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
        .dev_infos_get                  = sfc_dev_infos_get,
        .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
        .mtu_set                        = sfc_dev_set_mtu,
+       .rx_queue_start                 = sfc_rx_queue_start,
+       .rx_queue_stop                  = sfc_rx_queue_stop,
        .rx_queue_setup                 = sfc_rx_queue_setup,
        .rx_queue_release               = sfc_rx_queue_release,
        .rx_queue_count                 = sfc_rx_queue_count,
+       .rx_descriptor_done             = sfc_rx_descriptor_done,
        .tx_queue_setup                 = sfc_tx_queue_setup,
        .tx_queue_release               = sfc_tx_queue_release,
        .flow_ctrl_get                  = sfc_flow_ctrl_get,