linux-kernel - Re: [PATCH net-next v1 3/3] hinic: add support to query function table

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Message-ID: <20200827124404.496ff40b@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Thu, 27 Aug 2020 12:44:04 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Luo bin <luobin9@...wei.com>
Cc:     <davem@...emloft.net>, <linux-kernel@...r.kernel.org>,
        <netdev@...r.kernel.org>, <luoxianjun@...wei.com>,
        <yin.yinshi@...wei.com>, <cloud.wangxiaoyun@...wei.com>,
        <chiqijun@...wei.com>
Subject: Re: [PATCH net-next v1 3/3] hinic: add support to query function
 table

On Thu, 27 Aug 2020 19:13:21 +0800 Luo bin wrote:
> +	switch (idx) {
> +	case VALID:
> +		return funcfg_table_elem->dw0.bs.valid;
> +	case RX_MODE:
> +		return funcfg_table_elem->dw0.bs.nic_rx_mode;
> +	case MTU:
> +		return funcfg_table_elem->dw1.bs.mtu;
> +	case VLAN_MODE:
> +		return funcfg_table_elem->dw1.bs.vlan_mode;
> +	case VLAN_ID:
> +		return funcfg_table_elem->dw1.bs.vlan_id;
> +	case RQ_DEPTH:
> +		return funcfg_table_elem->dw13.bs.cfg_rq_depth;
> +	case QUEUE_NUM:
> +		return funcfg_table_elem->dw13.bs.cfg_q_num;

The first two patches look fairly unobjectionable to me, but here the
information does not seem that driver-specific. What's vlan_mode, and
vlan_id in the context of PF? Why expose mtu, is it different than
netdev mtu? What's valid? rq_depth?