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From: Tiwei Bie <tiwei.bie@intel.com>
To: Jens Freimann <jfreimann@redhat.com>
Cc: dev@dpdk.org, yliu@fridaylinux.org, maxime.coquelin@redhat.com,
	mst@redhat.com
Subject: Re: [dpdk-dev] [PATCH v3 18/21] net/virtio: add support for mergeable buffers with packed virtqueues
Date: Sun, 8 Apr 2018 14:02:46 +0800	[thread overview]
Message-ID: <20180408060246.4nphbb2uuzmmio2u@debian> (raw)
In-Reply-To: <20180405101031.26468-19-jfreimann@redhat.com>

On Thu, Apr 05, 2018 at 12:10:28PM +0200, Jens Freimann wrote:
> Implement support for receiving merged buffers in virtio when packed virtqueues
> are enabled.
> 
> Signed-off-by: Jens Freimann <jfreimann@redhat.com>
> ---
>  drivers/net/virtio/virtio_ethdev.c |  10 ++--
>  drivers/net/virtio/virtio_rxtx.c   | 107 +++++++++++++++++++++++++++++++++----
>  drivers/net/virtio/virtqueue.h     |   1 +
>  3 files changed, 104 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
> index 7367d9c5d..a3c3376d7 100644
> --- a/drivers/net/virtio/virtio_ethdev.c
> +++ b/drivers/net/virtio/virtio_ethdev.c
> @@ -1322,15 +1322,15 @@ set_rxtx_funcs(struct rte_eth_dev *eth_dev)
>  {
>  	struct virtio_hw *hw = eth_dev->data->dev_private;
>  
> -	/* workarount for packed vqs which don't support mrg_rxbuf at this point */
> -	if (vtpci_packed_queue(hw) && vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
> -		eth_dev->rx_pkt_burst = &virtio_recv_pkts_packed;
> -	} else if (hw->use_simple_rx) {
> +	if (hw->use_simple_rx) {
>  		PMD_INIT_LOG(INFO, "virtio: using simple Rx path on port %u",
>  			eth_dev->data->port_id);
>  		eth_dev->rx_pkt_burst = virtio_recv_pkts_vec;

The logic isn't right here. It means when hw->use_simple_rx
is true, virtio_recv_pkts_vec() will be selected as the rx
function for packed ring. But virtio_recv_pkts_vec() doesn't
support packed ring now.


>  	} else if (vtpci_packed_queue(hw)) {
> -		eth_dev->rx_pkt_burst = &virtio_recv_pkts_packed;
> +		if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF))
> +			eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts;
> +		else
> +			eth_dev->rx_pkt_burst = &virtio_recv_pkts_packed;
>  	} else if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
>  		PMD_INIT_LOG(INFO,
>  			"virtio: using mergeable buffer Rx path on port %u",
[...]

  parent reply	other threads:[~2018-04-08  6:04 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-05 10:10 [dpdk-dev] [PATCH v3 00/21] implement " Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 01/21] net/virtio: by default disable " Jens Freimann
2018-04-05 13:42   ` Maxime Coquelin
2018-04-05 14:19     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 02/21] net/virtio: vring init for packed queues Jens Freimann
2018-04-05 14:15   ` Maxime Coquelin
2018-04-05 14:24     ` Jens Freimann
2018-04-05 14:22   ` Tiwei Bie
2018-04-05 15:16     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 03/21] net/virtio: add virtio 1.1 defines Jens Freimann
2018-04-05 14:16   ` Maxime Coquelin
2018-04-05 14:27   ` Tiwei Bie
2018-04-05 14:33     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 04/21] net/virtio: add packed virtqueue helpers Jens Freimann
2018-04-05 14:27   ` Maxime Coquelin
2018-04-05 14:34     ` Jens Freimann
2018-04-05 14:40     ` Tiwei Bie
2018-04-05 15:14       ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 05/21] net/virtio: dump packed virtqueue data Jens Freimann
2018-04-05 14:29   ` Maxime Coquelin
2018-04-08  3:53   ` Tiwei Bie
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 06/21] net/virtio-user: add option to use packed queues Jens Freimann
2018-04-05 14:35   ` Maxime Coquelin
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 07/21] net/virtio: implement transmit path for " Jens Freimann
2018-04-06  7:56   ` Maxime Coquelin
2018-04-06  8:10     ` Jens Freimann
2018-04-08  4:51   ` Tiwei Bie
2018-04-09  6:20     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 08/21] net/virtio: implement receive " Jens Freimann
2018-04-06  7:51   ` Maxime Coquelin
2018-04-06  8:12     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 09/21] vhost: disable packed virtqueues by default Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 10/21] vhost: turn of indirect descriptors for packed virtqueues Jens Freimann
2018-04-06  8:12   ` Maxime Coquelin
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 11/21] vhost: add virtio 1.1 defines Jens Freimann
2018-04-06  8:15   ` Maxime Coquelin
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 12/21] vhost: vring address setup for packed queues Jens Freimann
2018-04-06  8:19   ` Maxime Coquelin
2018-04-06  8:23     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 13/21] vhost: add helpers for packed virtqueues Jens Freimann
2018-04-06  9:20   ` Maxime Coquelin
2018-04-06  9:21     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 14/21] vhost: dequeue for packed queues Jens Freimann
2018-04-06  9:30   ` Maxime Coquelin
2018-04-06 10:07     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 15/21] vhost: packed queue enqueue path Jens Freimann
2018-04-06  9:36   ` Maxime Coquelin
2018-04-06 12:17     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 16/21] vhost: enable packed virtqueues Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 17/21] net/virtio: disable ctrl virtqueue for packed rings Jens Freimann
2018-04-06  9:38   ` Maxime Coquelin
2018-04-06  9:43     ` Jens Freimann
2018-04-06  9:48       ` Maxime Coquelin
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 18/21] net/virtio: add support for mergeable buffers with packed virtqueues Jens Freimann
2018-04-06 10:05   ` Maxime Coquelin
2018-04-08  6:02   ` Tiwei Bie [this message]
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 19/21] vhost: support mergeable rx buffers with packed queues Jens Freimann
2018-04-06 13:04   ` Maxime Coquelin
2018-04-06 14:07     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 20/21] net/virtio: add support for event suppression Jens Freimann
2018-04-06 13:50   ` Maxime Coquelin
2018-04-06 14:09     ` Jens Freimann
2018-04-08  6:07   ` Tiwei Bie
2018-04-09  6:09     ` Jens Freimann
2018-04-05 10:10 ` [dpdk-dev] [PATCH v3 21/21] vhost: add event suppression for packed queues Jens Freimann

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