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Date: Tue, 24 Dec 2019 10:53:46 +0800
From: Ye Xiaolong <xiaolong.ye@intel.com>
To: "Zhang, Qi Z" <qi.z.zhang@intel.com>
Cc: "Cui, LunyuanX" <lunyuanx.cui@intel.com>, "dev@dpdk.org" <dev@dpdk.org>,
 "Xing, Beilei" <beilei.xing@intel.com>,
 "Yang, Qiming" <qiming.yang@intel.com>
Message-ID: <20191224025346.GF14498@intel.com>
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Subject: Re: [dpdk-dev] [PATCH] net/i40e: enable multi-queue Rx interrupt
 for VF
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On 12/24, Zhang, Qi Z wrote:
>
>
>> -----Original Message-----
>> From: Cui, LunyuanX <lunyuanx.cui@intel.com>
>> Sent: Tuesday, December 3, 2019 7:44 PM
>> To: dev@dpdk.org
>> Cc: Xing, Beilei <beilei.xing@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>;
>> Yang, Qiming <qiming.yang@intel.com>; Cui, LunyuanX
>> <lunyuanx.cui@intel.com>
>> Subject: [PATCH] net/i40e: enable multi-queue Rx interrupt for VF
>> 
>> Current implementation is that only one Rx queue can support interrupt,
>> because all queues are mapped in the same vector id in vfio_enable_msix().
>> So VF can not support multi-queue Rx interrupt in the interrupt mode.
>> 
>> In this patch, if the packet I/O interrupt on datapath is enabled
>> (rte_intr_dp_is_en(intr_handle) is true), we map different interrupt vectors to
>> each queue and send this map to PF.
>> After PF sets the map to the register,
>> all Rx queue interrupts will be received.
>> 
>> In addition, vector id should less than the maximum vector value.
>> When queue number is more than vector value, we set up a loop of interrupt
>> vectors map.
>> 
>> Signed-off-by: Lunyuan Cui <lunyuanx.cui@intel.com>
>
>Acked-by: Qi Zhang <qi.z.zhang@intel.com>
>


Applied to dpdk-next-net-intel, Thanks.