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From: Jianfeng Tan <jianfeng.tan@intel.com>
To: dev@dpdk.org
Cc: yuanhan.liu@linux.intel.com, stephen@networkplumber.org,
	lei.a.yao@intel.com, Jianfeng Tan <jianfeng.tan@intel.com>
Subject: [dpdk-dev] [PATCH v4 03/10] net/virtio: add Rx descriptor check
Date: Tue, 17 Jan 2017 07:10:23 +0000	[thread overview]
Message-ID: <1484637030-106261-4-git-send-email-jianfeng.tan@intel.com> (raw)
In-Reply-To: <1484637030-106261-1-git-send-email-jianfeng.tan@intel.com>

Under interrupt mode, rx_descriptor_done is used as an indicator
for applications to check if some number of packets are ready to
be received.

This patch enables this by checking used ring's local consumed idx
with shared (with backend) idx.

Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
Tested-by: Lei Yao <lei.a.yao@intel.com>
---
 drivers/net/virtio/virtio_ethdev.c | 1 +
 drivers/net/virtio/virtio_ethdev.h | 3 +++
 drivers/net/virtio/virtio_rxtx.c   | 9 +++++++++
 3 files changed, 13 insertions(+)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index a790c46..bec2be2 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -739,6 +739,7 @@ static const struct eth_dev_ops virtio_eth_dev_ops = {
 	.link_update             = virtio_dev_link_update,
 	.rx_queue_setup          = virtio_dev_rx_queue_setup,
 	.rx_queue_release        = virtio_dev_queue_release,
+	.rx_descriptor_done      = virtio_dev_rx_queue_done,
 	.tx_queue_setup          = virtio_dev_tx_queue_setup,
 	.tx_queue_release        = virtio_dev_queue_release,
 	/* collect stats per queue */
diff --git a/drivers/net/virtio/virtio_ethdev.h b/drivers/net/virtio/virtio_ethdev.h
index 27d9a19..4ab81c6 100644
--- a/drivers/net/virtio/virtio_ethdev.h
+++ b/drivers/net/virtio/virtio_ethdev.h
@@ -78,6 +78,9 @@ void virtio_dev_cq_start(struct rte_eth_dev *dev);
 /*
  * RX/TX function prototypes
  */
+
+int virtio_dev_rx_queue_done(void *rxq, uint16_t offset);
+
 int  virtio_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 		uint16_t nb_rx_desc, unsigned int socket_id,
 		const struct rte_eth_rxconf *rx_conf,
diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index 1e5a6b9..b29565e 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -72,6 +72,15 @@
 #define VIRTIO_SIMPLE_FLAGS ((uint32_t)ETH_TXQ_FLAGS_NOMULTSEGS | \
 	ETH_TXQ_FLAGS_NOOFFLOADS)
 
+int
+virtio_dev_rx_queue_done(void *rxq, uint16_t offset)
+{
+	struct virtnet_rx *rxvq = rxq;
+	struct virtqueue *vq = rxvq->vq;
+
+	return VIRTQUEUE_NUSED(vq) >= offset;
+}
+
 static void
 vq_ring_free_chain(struct virtqueue *vq, uint16_t desc_idx)
 {
-- 
2.7.4

  parent reply	other threads:[~2017-01-17  7:09 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-04  0:18 [dpdk-dev] [PATCH 0/5] Interrupt mode for virtio PMD Jianfeng Tan
2016-12-04  0:18 ` [dpdk-dev] [PATCH 1/5] net/virtio: add Rx descriptor check Jianfeng Tan
2016-12-04  0:18 ` [dpdk-dev] [PATCH 2/5] net/virtio: setup Rx fastpath interrupts Jianfeng Tan
2016-12-04  0:18 ` [dpdk-dev] [PATCH 3/5] net/virtio: remove Rx queue interrupts when stopping Jianfeng Tan
2016-12-04  0:18 ` [dpdk-dev] [PATCH 4/5] net/virtio: add Rx queue intr enable/disable functions Jianfeng Tan
2016-12-04  0:18 ` [dpdk-dev] [PATCH 5/5] examples/l3fwd: add parse-ptype option Jianfeng Tan
2016-12-08  6:59   ` Yuanhan Liu
2016-12-08  7:40     ` Tan, Jianfeng
2016-12-29  7:30 ` [dpdk-dev] [PATCH v2 0/9] rxq interrupt mode for virtio PMD Jianfeng Tan
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 1/9] net/virtio: fix rewriting LSC flag Jianfeng Tan
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 2/9] net/virtio: add Rx descriptor check Jianfeng Tan
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 3/9] net/virtio: add PCI ops for queue/irq binding Jianfeng Tan
2016-12-30  5:46     ` Yuanhan Liu
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 4/9] net/virtio: add Rx queue intr enable/disable functions Jianfeng Tan
2016-12-30  5:59     ` Yuanhan Liu
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 5/9] net/virtio: setup rxq interrupts Jianfeng Tan
2016-12-30  6:27     ` Yuanhan Liu
2017-01-04  6:56       ` Tan, Jianfeng
2017-01-04  7:22         ` Yuanhan Liu
2017-01-04  7:30           ` Tan, Jianfeng
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 6/9] net/virtio: unbind intr/eventfd when stop device Jianfeng Tan
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 7/9] net/virtio: unmapping queue/irq when close device Jianfeng Tan
2016-12-30  6:30     ` Yuanhan Liu
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 8/9] examples/l3fwd: add parse-ptype option Jianfeng Tan
2016-12-30  6:39     ` Yuanhan Liu
2016-12-30  7:30       ` Tan, Jianfeng
2017-01-03  6:59         ` Yuanhan Liu
2016-12-29  7:30   ` [dpdk-dev] [PATCH v2 9/9] examples/l3fwd-power: fix not stop and close device Jianfeng Tan
2016-12-30  6:44     ` Yuanhan Liu
2016-12-30  6:56       ` Tan, Jianfeng
2016-12-29  7:42   ` [dpdk-dev] [PATCH v2 0/9] rxq interrupt mode for virtio PMD Tan, Jianfeng
2016-12-30  5:41     ` Yuanhan Liu
2016-12-30  6:57   ` Yuanhan Liu
2017-01-16 14:46 ` [dpdk-dev] [PATCH v3 00/10] " Jianfeng Tan
2017-01-16 14:46   ` [dpdk-dev] [PATCH v3 01/10] net/virtio: fix rewriting LSC flag Jianfeng Tan
2017-01-16 14:46   ` [dpdk-dev] [PATCH v3 02/10] net/virtio: clean up wrapper of set_config_irq Jianfeng Tan
2017-01-16 14:46   ` [dpdk-dev] [PATCH v3 03/10] net/virtio: add Rx descriptor check Jianfeng Tan
2017-01-16 19:16     ` Stephen Hemminger
2017-01-17  4:09       ` Yuanhan Liu
2017-01-16 14:46   ` [dpdk-dev] [PATCH v3 04/10] net/virtio: add PCI ops for queue/irq binding Jianfeng Tan
2017-01-16 14:46   ` [dpdk-dev] [PATCH v3 05/10] net/virtio: add Rx queue intr enable/disable functions Jianfeng Tan
2017-01-17  2:30     ` Jason Wang
2017-01-16 14:46   ` [dpdk-dev] [PATCH v3 06/10] net/virtio: setup rxq interrupts Jianfeng Tan
2017-01-16 14:46   ` [dpdk-dev] [PATCH v3 07/10] net/virtio: unbind intr/eventfd when stop device Jianfeng Tan
2017-01-16 14:47   ` [dpdk-dev] [PATCH v3 08/10] net/virtio: unmapping queue/irq when close device Jianfeng Tan
2017-01-16 14:47   ` [dpdk-dev] [PATCH v3 09/10] examples/l3fwd-power: add parse-ptype option Jianfeng Tan
2017-01-17  5:16     ` Yuanhan Liu
2017-01-17  5:23       ` Tan, Jianfeng
2017-01-16 14:47   ` [dpdk-dev] [PATCH v3 10/10] examples/l3fwd-power: fix not stop and close device Jianfeng Tan
2017-01-17  2:14   ` [dpdk-dev] [PATCH v3 00/10] rxq interrupt mode for virtio PMD Yao, Lei A
2017-01-17  7:10 ` [dpdk-dev] [PATCH v4 " Jianfeng Tan
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 01/10] net/virtio: fix rewriting LSC flag Jianfeng Tan
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 02/10] net/virtio: clean up wrapper of set_config_irq Jianfeng Tan
2017-01-17  7:10   ` Jianfeng Tan [this message]
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 04/10] net/virtio: add PCI ops for queue/irq binding Jianfeng Tan
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 05/10] net/virtio: add Rx queue intr enable/disable functions Jianfeng Tan
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 06/10] net/virtio: setup rxq interrupts Jianfeng Tan
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 07/10] net/virtio: unbind intr/eventfd when stop device Jianfeng Tan
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 08/10] net/virtio: unmapping queue/irq when close device Jianfeng Tan
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 09/10] examples/l3fwd-power: add parse-ptype option Jianfeng Tan
2017-01-17  7:10   ` [dpdk-dev] [PATCH v4 10/10] examples/l3fwd-power: fix not stop and close device Jianfeng Tan
2017-01-17  8:28   ` [dpdk-dev] [PATCH v4 00/10] rxq interrupt mode for virtio PMD Yuanhan Liu
2017-01-17  8:00 ` [dpdk-dev] [PATCH v5 06/10] net/virtio: setup rxq interrupts Jianfeng Tan

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