From: Kevin Traynor <ktraynor@redhat.com>
To: Zhiyong Yang <zhiyong.yang@intel.com>, dev@dpdk.org
Cc: yuanhan.liu@linux.intel.com, maxime.coquelin@redhat.com
Subject: Re: [dpdk-dev] [PATCH 5/5] net/vhost: remove limit of vhost RX burst size
Date: Fri, 24 Feb 2017 11:41:17 +0000 [thread overview]
Message-ID: <381b3df2-bf91-62d4-ab66-ea215007ef5a@redhat.com> (raw)
In-Reply-To: <1487926101-4637-6-git-send-email-zhiyong.yang@intel.com>
On 02/24/2017 08:48 AM, Zhiyong Yang wrote:
> vhost removes limit of RX burst size(32 pkts) and supports to make
> an best effort to receive pkts.
>
> Cc: yuanhan.liu@linux.intel.com
> Cc: maxime.coquelin@redhat.com
>
> Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
> ---
> drivers/net/vhost/rte_eth_vhost.c | 23 +++++++++++++++++++++--
> 1 file changed, 21 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
> index 1e1fa34..8a97c2a 100644
> --- a/drivers/net/vhost/rte_eth_vhost.c
> +++ b/drivers/net/vhost/rte_eth_vhost.c
> @@ -402,9 +402,28 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
> goto out;
>
> /* Dequeue packets from guest TX queue */
> - nb_rx = rte_vhost_dequeue_burst(r->vid,
> - r->virtqueue_id, r->mb_pool, bufs, nb_bufs);
> + if (likely(nb_bufs <= VHOST_MAX_PKT_BURST))
> + nb_rx = rte_vhost_dequeue_burst(r->vid, r->virtqueue_id,
> + r->mb_pool, bufs, nb_bufs);
> + else {
> + uint16_t nb_receive = nb_bufs;
> +
> + while (nb_receive) {
> + uint16_t nb_pkts;
> + uint16_t num = (uint16_t)RTE_MIN(nb_receive,
> + VHOST_MAX_PKT_BURST);
>
> + nb_pkts = rte_vhost_dequeue_burst(r->vid,
> + r->virtqueue_id,
> + r->mb_pool,
> + &bufs[nb_rx], num);
> +
> + nb_rx += nb_pkts;
> + nb_receive -= nb_pkts;
> + if (nb_pkts < num)
> + break;
> + }
Similar comment for this as for vhost tx
> + }
> r->stats.pkts += nb_rx;
>
> for (i = 0; likely(i < nb_rx); i++) {
>
prev parent reply other threads:[~2017-02-24 11:41 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-24 8:48 [dpdk-dev] [PATCH 0/5] consistent PMD batching behaviour Zhiyong Yang
2017-02-24 8:48 ` [dpdk-dev] [PATCH 1/5] net/fm10k: remove limit of fm10k_xmit_pkts_vec burst size Zhiyong Yang
2017-02-24 9:32 ` Bruce Richardson
2017-02-24 9:36 ` Bruce Richardson
2017-02-24 9:48 ` Yang, Zhiyong
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 0/5] consistent PMD batching behaviour Zhiyong Yang
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 1/5] net/fm10k: remove limit of fm10k_xmit_pkts_vec burst size Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 0/5] consistent PMD batching behaviour Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 1/5] net/fm10k: remove limit of fm10k_xmit_pkts_vec burst size Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 2/5] net/i40e: remove limit of i40e_xmit_pkts_vec " Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 3/5] net/ixgbe: remove limit of ixgbe_xmit_pkts_vec " Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 4/5] net/vhost: remove limit of vhost TX " Zhiyong Yang
2017-03-29 7:16 ` [dpdk-dev] [PATCH v3 5/5] net/vhost: remove limit of vhost RX " Zhiyong Yang
2017-03-30 12:54 ` [dpdk-dev] [PATCH v3 0/5] consistent PMD batching behaviour Ferruh Yigit
2017-03-31 7:00 ` Yao, Lei A
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 2/5] net/i40e: remove limit of i40e_xmit_pkts_vec burst size Zhiyong Yang
2017-03-24 14:03 ` Ferruh Yigit
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 3/5] net/ixgbe: remove limit of ixgbe_xmit_pkts_vec " Zhiyong Yang
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 4/5] net/vhost: remove limit of vhost TX " Zhiyong Yang
2017-03-03 11:17 ` [dpdk-dev] [PATCH v2 5/5] net/vhost: remove limit of vhost RX " Zhiyong Yang
2017-03-05 13:02 ` [dpdk-dev] [PATCH v2 0/5] consistent PMD batching behaviour Ananyev, Konstantin
2017-03-06 2:13 ` Yang, Zhiyong
2017-03-24 14:02 ` Ferruh Yigit
2017-03-25 6:29 ` Yang, Zhiyong
2017-03-28 10:00 ` Yang, Zhiyong
2017-03-28 10:05 ` Ferruh Yigit
2017-02-24 8:48 ` [dpdk-dev] [PATCH 2/5] net/i40e: remove limit of i40e_xmit_pkts_vec burst size Zhiyong Yang
2017-02-24 8:48 ` [dpdk-dev] [PATCH 3/5] net/ixgbe: remove limit of ixgbe_xmit_pkts_vec " Zhiyong Yang
2017-02-24 8:48 ` [dpdk-dev] [PATCH 4/5] net/vhost: remove limit of vhost TX " Zhiyong Yang
2017-02-24 11:08 ` Kevin Traynor
2017-02-24 13:04 ` Bruce Richardson
2017-02-24 13:33 ` Kevin Traynor
2017-03-01 9:44 ` Maxime Coquelin
2017-03-01 13:24 ` Yang, Zhiyong
2017-02-24 8:48 ` [dpdk-dev] [PATCH 5/5] net/vhost: remove limit of vhost RX " Zhiyong Yang
2017-02-24 11:41 ` Kevin Traynor [this message]
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