From: "Liu, Yong" <yong.liu@intel.com>
To: "Zhang, Xiao" <xiao.zhang@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-dev] examples/l3fwd-power: fix RX interrupt disable
Date: Fri, 20 Sep 2019 05:22:00 +0000 [thread overview]
Message-ID: <86228AFD5BCD8E4EBFD2B90117B5E81E633A8040@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <1568131814-48424-1-git-send-email-xiao.zhang@intel.com>
> -----Original Message-----
> From: Zhang, Xiao
> Sent: Wednesday, September 11, 2019 12:10 AM
> To: dev@dpdk.org
> Cc: Liu, Yong <yong.liu@intel.com>; Zhang, Xiao <xiao.zhang@intel.com>;
> stable@dpdk.org
> Subject: examples/l3fwd-power: fix RX interrupt disable
>
> Interrupt will not be received when disabling RX interrupt without
> synchronization mechanism sometimes which leads to wake up issue,
> add spinlock to fix it.
>
> Fixes: b736d64787fc ("mples/l3fwd-power: disable Rx interrupt when
> waking up")
> Cc: stable@dpdk.org
>
> Signed-off-by: Xiao Zhang <xiao.zhang@intel.com>
> ---
> examples/l3fwd-power/main.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
> index fd8d952..ff1ad37 100644
> --- a/examples/l3fwd-power/main.c
> +++ b/examples/l3fwd-power/main.c
> @@ -880,7 +880,9 @@ sleep_until_rx_interrupt(int num)
> port_id = ((uintptr_t)data) >> CHAR_BIT;
> queue_id = ((uintptr_t)data) &
> RTE_LEN2MASK(CHAR_BIT, uint8_t);
> + rte_spinlock_lock(&(locks[port_id]));
> rte_eth_dev_rx_intr_disable(port_id, queue_id);
> + rte_spinlock_unlock(&(locks[port_id]));
> RTE_LOG(INFO, L3FWD_POWER,
> "lcore %u is waked up from rx interrupt on"
> " port %d queue %d\n",
> --
> 2.7.4
Reviewed-by: Marvin Liu
<yong.liu@intel.com>
Regards,
Marvin
next prev parent reply other threads:[~2019-09-20 5:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-10 16:10 Xiao Zhang
2019-09-20 5:22 ` Liu, Yong [this message]
2019-10-23 14:32 ` Thomas Monjalon
2019-10-24 8:07 ` Hunt, David
2019-10-27 17:39 ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
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