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From: David Marchand <david.marchand@redhat.com>
To: Xiaolong Ye <xiaolong.ye@intel.com>
Cc: dev <dev@dpdk.org>, Ferruh Yigit <ferruh.yigit@intel.com>,
	 Qi Zhang <qi.z.zhang@intel.com>,
	Karlsson Magnus <magnus.karlsson@intel.com>,
	 Topel Bjorn <bjorn.topel@intel.com>
Subject: Re: [dpdk-dev] [PATCH] net/af_xdp: enqueue buf ring when allocate Tx queue fails
Date: Wed, 10 Apr 2019 10:23:38 +0200	[thread overview]
Message-ID: <CAJFAV8xyT6SB-gF+MVDojikxVC9b-B5cxKvjar1s6ACG7B68fQ@mail.gmail.com> (raw)
Message-ID: <20190410082338.FU5DMk2bF8Qptcpo_qi0TiWZP_1GiggfyxTmEFc5FiU@z> (raw)
In-Reply-To: <20190409151902.14675-1-xiaolong.ye@intel.com>

On Tue, Apr 9, 2019 at 5:24 PM Xiaolong Ye <xiaolong.ye@intel.com> wrote:

> When it fails to allocate enough slots in Tx queue for transmitting
> packets, we need to return the dequeued addrs to buf ring.
>
> Fixes: f1debd77efaf ("net/af_xdp: introduce AF_XDP PMD")
>
> Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
> ---
>  drivers/net/af_xdp/rte_eth_af_xdp.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/af_xdp/rte_eth_af_xdp.c
> b/drivers/net/af_xdp/rte_eth_af_xdp.c
> index 007a1c6b4..5cc643ce2 100644
> --- a/drivers/net/af_xdp/rte_eth_af_xdp.c
> +++ b/drivers/net/af_xdp/rte_eth_af_xdp.c
> @@ -276,6 +276,7 @@ eth_af_xdp_tx(void *queue, struct rte_mbuf **bufs,
> uint16_t nb_pkts)
>
>         if (xsk_ring_prod__reserve(&txq->tx, nb_pkts, &idx_tx) != nb_pkts)
> {
>                 kick_tx(txq);
> +               rte_ring_enqueue_bulk(umem->buf_ring, addrs, nb_pkts,
> NULL);
>                 return 0;
>         }
>
> --
> 2.17.1
>

Looks good to me.
But I have an additional question.

After the for loop that only picks the mbufs it can copy to the xdp desc,
is it normal to call xsk_ring_prod__submit(&txq->tx, nb_pkts); rather than
with valid count ?

-- 
David Marchand

  parent reply	other threads:[~2019-04-10  8:23 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-09  8:21 [dpdk-dev] [PATCH] net/af_xdp: free mbuf " Xiaolong Ye
2019-04-09  8:21 ` Xiaolong Ye
2019-04-09  8:34 ` David Marchand
2019-04-09  8:34   ` David Marchand
2019-04-09 14:48   ` Ye Xiaolong
2019-04-09 14:48     ` Ye Xiaolong
2019-04-09 15:19 ` [dpdk-dev] [PATCH] net/af_xdp: enqueue buf ring " Xiaolong Ye
2019-04-09 15:19   ` Xiaolong Ye
2019-04-10  8:23   ` David Marchand [this message]
2019-04-10  8:23     ` David Marchand
2019-04-10 10:22     ` Ye Xiaolong
2019-04-10 10:22       ` Ye Xiaolong
2019-04-10 10:53   ` [dpdk-dev] [PATCH] net/af_xdp: submit valid count to Tx queue Xiaolong Ye
2019-04-10 10:53     ` Xiaolong Ye
2019-04-10 11:30     ` David Marchand
2019-04-10 11:30       ` David Marchand
2019-04-11  2:24       ` Ye Xiaolong
2019-04-11  2:24         ` Ye Xiaolong
2019-04-11  7:20         ` David Marchand
2019-04-11  7:20           ` David Marchand
2019-04-11  7:27           ` Ye Xiaolong
2019-04-11  7:27             ` Ye Xiaolong
2019-04-12 14:48           ` [dpdk-dev] [PATCH 1/2] net/af_xdp: enqueue buf ring when allocate Tx queue fails Xiaolong Ye
2019-04-12 14:48             ` Xiaolong Ye
2019-04-12 14:48             ` [dpdk-dev] [PATCH 2/2] net/af_xdp: make reserve/submit peek/release consistent Xiaolong Ye
2019-04-12 14:48               ` Xiaolong Ye
2019-04-15  8:19               ` David Marchand
2019-04-15  8:19                 ` David Marchand
2019-04-15 14:42                 ` Ye Xiaolong
2019-04-15 14:42                   ` Ye Xiaolong
2019-04-16 15:03           ` [dpdk-dev] [PATCH v2 0/2] some fixes Xiaolong Ye
2019-04-16 15:03             ` Xiaolong Ye
2019-04-16 15:03             ` [dpdk-dev] [PATCH v2 1/2] net/af_xdp: enqueue buf ring when allocate Tx queue fails Xiaolong Ye
2019-04-16 15:03               ` Xiaolong Ye
2019-04-17  7:45               ` David Marchand
2019-04-17  7:45                 ` David Marchand
2019-04-16 15:03             ` [dpdk-dev] [PATCH v2 2/2] net/af_xdp: make reserve/submit peek/release consistent Xiaolong Ye
2019-04-16 15:03               ` Xiaolong Ye
2019-04-17  7:45               ` David Marchand
2019-04-17  7:45                 ` David Marchand
2019-04-17  7:53                 ` Ye Xiaolong
2019-04-17  7:53                   ` Ye Xiaolong
2019-04-17  8:56           ` [dpdk-dev] [PATCH v3 0/4] some fixes for AF_XDP pmd Xiaolong Ye
2019-04-17  8:56             ` Xiaolong Ye
2019-04-17  8:56             ` [dpdk-dev] [PATCH v3 1/4] net/af_xdp: enqueue buf ring when allocate Tx queue fails Xiaolong Ye
2019-04-17  8:56               ` Xiaolong Ye
2019-04-17  9:15               ` David Marchand
2019-04-17  9:15                 ` David Marchand
2019-04-17 13:26                 ` Ye Xiaolong
2019-04-17 13:26                   ` Ye Xiaolong
2019-04-17  8:56             ` [dpdk-dev] [PATCH v3 2/4] net/af_xdp: specify minimal and maximal MTU Xiaolong Ye
2019-04-17  8:56               ` Xiaolong Ye
2019-04-17  9:38               ` David Marchand
2019-04-17  9:38                 ` David Marchand
2019-04-17 13:25                 ` Ye Xiaolong
2019-04-17 13:25                   ` Ye Xiaolong
2019-04-17  8:56             ` [dpdk-dev] [PATCH v3 3/4] net/af_xdp: make reserve/submit peek/release consistent Xiaolong Ye
2019-04-17  8:56               ` Xiaolong Ye
2019-04-17  9:25               ` David Marchand
2019-04-17  9:25                 ` David Marchand
2019-04-17  8:56             ` [dpdk-dev] [PATCH v3 4/4] net/af_xdp: fix typos in Rx function Xiaolong Ye
2019-04-17  8:56               ` Xiaolong Ye
2019-04-17  9:25               ` David Marchand
2019-04-17  9:25                 ` David Marchand
2019-04-17 13:49           ` [dpdk-dev] [PATCH v4 0/4] some fixes for AF_XDP pmd Xiaolong Ye
2019-04-17 13:49             ` Xiaolong Ye
2019-04-17 13:49             ` [dpdk-dev] [PATCH v4 1/4] net/af_xdp: enqueue buf ring when allocate Tx queue fails Xiaolong Ye
2019-04-17 13:49               ` Xiaolong Ye
2019-04-17 13:49             ` [dpdk-dev] [PATCH v4 2/4] net/af_xdp: specify minimal and maximal MTU Xiaolong Ye
2019-04-17 13:49               ` Xiaolong Ye
2019-04-17 13:49             ` [dpdk-dev] [PATCH v4 3/4] net/af_xdp: make reserve/submit peek/release consistent Xiaolong Ye
2019-04-17 13:49               ` Xiaolong Ye
2019-04-17 13:49             ` [dpdk-dev] [PATCH v4 4/4] net/af_xdp: fix typos in Rx function Xiaolong Ye
2019-04-17 13:49               ` Xiaolong Ye
2019-04-17 15:31               ` Rami Rosen
2019-04-17 15:31                 ` Rami Rosen
2019-04-17 14:02             ` [dpdk-dev] [PATCH v4 0/4] some fixes for AF_XDP pmd David Marchand
2019-04-17 14:02               ` David Marchand
2019-04-17 15:27               ` Ye Xiaolong
2019-04-17 15:27                 ` Ye Xiaolong
2019-04-17 16:38               ` Ferruh Yigit
2019-04-17 16:38                 ` Ferruh Yigit

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