From: Andrew Rybchenko <arybchenko@solarflare.com>
Date: Thu, 15 Dec 2016 12:51:09 +0000 (+0000)
Subject: net/sfc: get RxQ descriptor done
X-Git-Tag: spdx-start~4983
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=36d84f87b36992e96a55d3836e26b338c2683010;hp=04aa6b9c5fd7616828e0ebe8b4747a2614aa220e;p=dpdk.git

net/sfc: get RxQ descriptor done

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andrew Lee <alee@solarflare.com>
Reviewed-by: Robert Stonehouse <rstonehouse@solarflare.com>
---

diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index ad6f813678..8c845e9728 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -854,6 +854,14 @@ 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 const struct eth_dev_ops sfc_eth_dev_ops = {
 	.dev_configure			= sfc_dev_configure,
 	.dev_start			= sfc_dev_start,
@@ -875,6 +883,7 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
 	.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,
diff --git a/drivers/net/sfc/sfc_rx.c b/drivers/net/sfc/sfc_rx.c
index ff9d799d78..802beb2b32 100644
--- a/drivers/net/sfc/sfc_rx.c
+++ b/drivers/net/sfc/sfc_rx.c
@@ -273,6 +273,17 @@ sfc_rx_qdesc_npending(struct sfc_adapter *sa, unsigned int sw_index)
 	return rxq->pending - rxq->completed;
 }
 
+int
+sfc_rx_qdesc_done(struct sfc_rxq *rxq, unsigned int offset)
+{
+	if ((rxq->state & SFC_RXQ_RUNNING) == 0)
+		return 0;
+
+	sfc_ev_qpoll(rxq->evq);
+
+	return offset < (rxq->pending - rxq->completed);
+}
+
 static void
 sfc_rx_qpurge(struct sfc_rxq *rxq)
 {
diff --git a/drivers/net/sfc/sfc_rx.h b/drivers/net/sfc/sfc_rx.h
index 8064af675f..8d8e709232 100644
--- a/drivers/net/sfc/sfc_rx.h
+++ b/drivers/net/sfc/sfc_rx.h
@@ -142,6 +142,7 @@ uint16_t sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 
 unsigned int sfc_rx_qdesc_npending(struct sfc_adapter *sa,
 				   unsigned int sw_index);
+int sfc_rx_qdesc_done(struct sfc_rxq *rxq, unsigned int offset);
 
 #ifdef __cplusplus
 }