From: Yuan Wang <yuanx.wang@intel.com> To: maxime.coquelin@redhat.com, chenbo.xia@intel.com, dev@dpdk.org Cc: jiayu.hu@intel.com, xuan.ding@intel.com, sunil.pai.g@intel.com, Yuan Wang <yuanx.wang@intel.com> Subject: [PATCH v5 2/2] example/vhost: support to clear in-flight packets for async dequeue Date: Fri, 10 Jun 2022 01:34:04 +0800 Message-ID: <20220609173404.1769210-3-yuanx.wang@intel.com> (raw) In-Reply-To: <20220609173404.1769210-1-yuanx.wang@intel.com> This patch allows vring_state_changed() to clear in-flight dequeue packets. It also clears the in-flight packets in a thread-safe way in destroy_device(). Signed-off-by: Yuan Wang <yuanx.wang@intel.com> --- examples/vhost/main.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-) diff --git a/examples/vhost/main.c b/examples/vhost/main.c index e7fee5aa1b..a679ef738c 100644 --- a/examples/vhost/main.c +++ b/examples/vhost/main.c @@ -1543,6 +1543,25 @@ vhost_clear_queue_thread_unsafe(struct vhost_dev *vdev, uint16_t queue_id) } } +static void +vhost_clear_queue(struct vhost_dev *vdev, uint16_t queue_id) +{ + uint16_t n_pkt = 0; + int pkts_inflight; + + int16_t dma_id = dma_bind[vid2socketid[vdev->vid]].dmas[queue_id].dev_id; + pkts_inflight = rte_vhost_async_get_inflight(vdev->vid, queue_id); + + struct rte_mbuf *m_cpl[pkts_inflight]; + + while (pkts_inflight) { + n_pkt = rte_vhost_clear_queue(vdev->vid, queue_id, m_cpl, + pkts_inflight, dma_id, 0); + free_pkts(m_cpl, n_pkt); + pkts_inflight = rte_vhost_async_get_inflight(vdev->vid, queue_id); + } +} + /* * Remove a device from the specific data core linked list and from the * main linked list. Synchronization occurs through the use of the @@ -1600,13 +1619,13 @@ destroy_device(int vid) vdev->vid); if (dma_bind[vid].dmas[VIRTIO_RXQ].async_enabled) { - vhost_clear_queue_thread_unsafe(vdev, VIRTIO_RXQ); + vhost_clear_queue(vdev, VIRTIO_RXQ); rte_vhost_async_channel_unregister(vid, VIRTIO_RXQ); dma_bind[vid].dmas[VIRTIO_RXQ].async_enabled = false; } if (dma_bind[vid].dmas[VIRTIO_TXQ].async_enabled) { - vhost_clear_queue_thread_unsafe(vdev, VIRTIO_TXQ); + vhost_clear_queue(vdev, VIRTIO_TXQ); rte_vhost_async_channel_unregister(vid, VIRTIO_TXQ); dma_bind[vid].dmas[VIRTIO_TXQ].async_enabled = false; } @@ -1765,9 +1784,6 @@ vring_state_changed(int vid, uint16_t queue_id, int enable) if (!vdev) return -1; - if (queue_id != VIRTIO_RXQ) - return 0; - if (dma_bind[vid2socketid[vid]].dmas[queue_id].async_enabled) { if (!enable) vhost_clear_queue_thread_unsafe(vdev, queue_id); -- 2.25.1
next prev parent reply other threads:[~2022-06-09 9:46 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-04-13 18:27 [PATCH 0/2] support to clear in-flight packets for async Yuan Wang 2022-04-13 18:27 ` [PATCH 1/2] vhost: support clear in-flight packets for async dequeue Yuan Wang 2022-04-13 18:27 ` [PATCH 2/2] example/vhost: support to " Yuan Wang 2022-05-13 16:35 ` [PATCH v2 0/2] support to clear in-flight packets for async Yuan Wang 2022-05-13 16:35 ` [PATCH v2 1/2] vhost: support clear in-flight packets for async dequeue Yuan Wang 2022-05-13 16:35 ` [PATCH v2 2/2] example/vhost: support to " Yuan Wang 2022-05-23 16:13 ` [PATCH v3 0/2] support to clear in-flight packets for async Yuan Wang 2022-05-23 16:13 ` [PATCH v3 1/2] vhost: support clear in-flight packets for async dequeue Yuan Wang 2022-05-23 16:13 ` [PATCH v3 2/2] example/vhost: support to " Yuan Wang 2022-06-06 17:45 ` [PATCH v4 0/2] support to clear in-flight packets for async Yuan Wang 2022-06-06 17:45 ` [PATCH v4 1/2] vhost: support clear in-flight packets for async dequeue Yuan Wang 2022-06-09 7:06 ` Hu, Jiayu 2022-06-09 7:51 ` Wang, YuanX 2022-06-06 17:45 ` [PATCH v4 2/2] example/vhost: support to " Yuan Wang 2022-06-09 17:34 ` [PATCH v5 0/2] support to clear in-flight packets for async Yuan Wang 2022-06-09 17:34 ` [PATCH v5 1/2] vhost: support clear in-flight packets for async dequeue Yuan Wang 2022-06-14 13:23 ` Maxime Coquelin 2022-06-14 23:56 ` Hu, Jiayu 2022-06-09 17:34 ` Yuan Wang [this message] 2022-06-14 13:28 ` [PATCH v5 2/2] example/vhost: support to " Maxime Coquelin 2022-06-14 23:56 ` Hu, Jiayu 2022-06-17 14:06 ` [PATCH v5 0/2] support to clear in-flight packets for async Maxime Coquelin
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=20220609173404.1769210-3-yuanx.wang@intel.com \ --to=yuanx.wang@intel.com \ --cc=chenbo.xia@intel.com \ --cc=dev@dpdk.org \ --cc=jiayu.hu@intel.com \ --cc=maxime.coquelin@redhat.com \ --cc=sunil.pai.g@intel.com \ --cc=xuan.ding@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
DPDK patches and discussions This inbox may be cloned and mirrored by anyone: git clone --mirror http://inbox.dpdk.org/dev/0 dev/git/0.git # If you have public-inbox 1.1+ installed, you may # initialize and index your mirror using the following commands: public-inbox-init -V2 dev dev/ http://inbox.dpdk.org/dev \ dev@dpdk.org public-inbox-index dev Example config snippet for mirrors. Newsgroup available over NNTP: nntp://inbox.dpdk.org/inbox.dpdk.dev AGPL code for this site: git clone https://public-inbox.org/public-inbox.git