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

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Date:   Sat, 19 Oct 2019 11:42:01 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     tanhuazhong@...wei.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        salil.mehta@...wei.com, yisen.zhuang@...wei.com,
        linuxarm@...wei.com, jakub.kicinski@...ronome.com,
        liuyonglong@...wei.com
Subject: Re: [PATCH net] net: hns3: fix mis-counting IRQ vector numbers
 issue

From: Huazhong Tan <tanhuazhong@...wei.com>
Date: Fri, 18 Oct 2019 11:42:59 +0800

> 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>

Applied, thanks.