From: Jason Wang <jasowang@redhat.com>
To: Jianfeng Tan <jianfeng.tan@intel.com>, dev@dpdk.org
Cc: yuanhan.liu@linux.intel.com, stephen@networkplumber.org,
lei.a.yao@intel.com
Subject: Re: [dpdk-dev] [PATCH v3 05/10] net/virtio: add Rx queue intr enable/disable functions
Date: Tue, 17 Jan 2017 10:30:10 +0800 [thread overview]
Message-ID: <fbbc9b70-c867-2cc7-4751-82a9a67a5e72@redhat.com> (raw)
In-Reply-To: <1484578022-92705-6-git-send-email-jianfeng.tan@intel.com>
On 2017年01月16日 22:46, Jianfeng Tan wrote:
> This patch implements interrupt enable/disable functions for each
> Rx queue. And we rely on flags of avail queue as the hint for virtio
> device to interrupt virtio driver or not.
>
> Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
> ---
> drivers/net/virtio/virtio_ethdev.c | 22 ++++++++++++++++++++++
> drivers/net/virtio/virtqueue.c | 11 -----------
> drivers/net/virtio/virtqueue.h | 16 +++++++++++++++-
> 3 files changed, 37 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
> index bec2be2..4224d17 100644
> --- a/drivers/net/virtio/virtio_ethdev.c
> +++ b/drivers/net/virtio/virtio_ethdev.c
> @@ -717,6 +717,26 @@ virtio_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
> return 0;
> }
>
> +static int
> +virtio_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
> +{
> + struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
> + struct virtqueue *vq = rxvq->vq;
> +
> + virtqueue_enable_intr(vq);
> + return 0;
> +}
> +
> +static int
> +virtio_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
> +{
> + struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
> + struct virtqueue *vq = rxvq->vq;
> +
> + virtqueue_disable_intr(vq);
> + return 0;
> +}
> +
> /*
> * dev_ops for virtio, bare necessities for basic operation
> */
> @@ -738,6 +758,8 @@ static const struct eth_dev_ops virtio_eth_dev_ops = {
> .xstats_reset = virtio_dev_stats_reset,
> .link_update = virtio_dev_link_update,
> .rx_queue_setup = virtio_dev_rx_queue_setup,
> + .rx_queue_intr_enable = virtio_dev_rx_queue_intr_enable,
> + .rx_queue_intr_disable = virtio_dev_rx_queue_intr_disable,
> .rx_queue_release = virtio_dev_queue_release,
> .rx_descriptor_done = virtio_dev_rx_queue_done,
> .tx_queue_setup = virtio_dev_tx_queue_setup,
> diff --git a/drivers/net/virtio/virtqueue.c b/drivers/net/virtio/virtqueue.c
> index 7f60e3e..9ad77b8 100644
> --- a/drivers/net/virtio/virtqueue.c
> +++ b/drivers/net/virtio/virtqueue.c
> @@ -38,17 +38,6 @@
> #include "virtio_logs.h"
> #include "virtio_pci.h"
>
> -void
> -virtqueue_disable_intr(struct virtqueue *vq)
> -{
> - /*
> - * Set VRING_AVAIL_F_NO_INTERRUPT to hint host
> - * not to interrupt when it consumes packets
> - * Note: this is only considered a hint to the host
> - */
> - vq->vq_ring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
> -}
> -
> /*
> * Two types of mbuf to be cleaned:
> * 1) mbuf that has been consumed by backend but not used by virtio.
> diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h
> index b1070e0..f9e3736 100644
> --- a/drivers/net/virtio/virtqueue.h
> +++ b/drivers/net/virtio/virtqueue.h
> @@ -274,7 +274,21 @@ vring_desc_init(struct vring_desc *dp, uint16_t n)
> /**
> * Tell the backend not to interrupt us.
> */
> -void virtqueue_disable_intr(struct virtqueue *vq);
> +static inline void
> +virtqueue_disable_intr(struct virtqueue *vq)
> +{
> + vq->vq_ring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
> +}
I think we'd better consider to implement even index in the future.
Thanks
> +
> +/**
> + * Tell the backend to interrupt us.
> + */
> +static inline void
> +virtqueue_enable_intr(struct virtqueue *vq)
> +{
> + vq->vq_ring.avail->flags &= (~VRING_AVAIL_F_NO_INTERRUPT);
> +}
> +
> /**
> * Dump virtqueue internal structures, for debug purpose only.
> */
next prev parent reply other threads:[~2017-01-17 2:30 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 [this message]
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 ` [dpdk-dev] [PATCH v4 03/10] net/virtio: add Rx descriptor check Jianfeng Tan
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=fbbc9b70-c867-2cc7-4751-82a9a67a5e72@redhat.com \
--to=jasowang@redhat.com \
--cc=dev@dpdk.org \
--cc=jianfeng.tan@intel.com \
--cc=lei.a.yao@intel.com \
--cc=stephen@networkplumber.org \
--cc=yuanhan.liu@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).