netdev - Re: [PATCH net] net: hns3: fix mis-counting IRQ vector numbers issue

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Date:   Fri, 18 Oct 2019 11:40:24 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Huazhong Tan <tanhuazhong@...wei.com>
Cc:     <davem@...emloft.net>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <salil.mehta@...wei.com>,
        <yisen.zhuang@...wei.com>, <linuxarm@...wei.com>,
        Yonglong Liu <liuyonglong@...wei.com>
Subject: Re: [PATCH net] net: hns3: fix mis-counting IRQ vector numbers
 issue

On Fri, 18 Oct 2019 11:42:59 +0800, Huazhong Tan wrote:
> From: Yonglong Liu <liuyonglong@...wei.com>
> 
> Currently, the num_msi_left means the vector numbers of NIC,
> but if the PF supported RoCE, it contains the vector numbers
> of NIC and RoCE(Not expected).
> 
> This may cause interrupts lost in some case, because of the
> NIC module used the vector resources which belongs to RoCE.
> 
> This patch adds a new variable num_nic_msi to store the vector
> numbers of NIC, and adjust the default TQP numbers and rss_size
> according to the value of num_nic_msi.
> 
> Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
> Signed-off-by: Yonglong Liu <liuyonglong@...wei.com>
> Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>

LGTM, thanks!