linux-kernel - Re: [PATCH net-next v2 6/6] net/smc: Extend SMCR v2 linkgroup netlink attribute

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Date:   Fri, 18 Aug 2023 21:41:15 +0200
From:   Jan Karcher <jaka@...ux.ibm.com>
To:     Guangguan Wang <guangguan.wang@...ux.alibaba.com>,
        wenjia@...ux.ibm.com, kgraul@...ux.ibm.com,
        tonylu@...ux.alibaba.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com
Cc:     horms@...nel.org, alibuda@...ux.alibaba.com,
        guwen@...ux.alibaba.com, linux-s390@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2 6/6] net/smc: Extend SMCR v2 linkgroup netlink
 attribute



On 17/08/2023 15:20, Guangguan Wang wrote:
> Add SMC_NLA_LGR_R_V2_MAX_CONNS and SMC_NLA_LGR_R_V2_MAX_LINKS
> to SMCR v2 linkgroup netlink attribute SMC_NLA_LGR_R_V2 for
> linkgroup's detail info showing.
> 
> Signed-off-by: Guangguan Wang <guangguan.wang@...ux.alibaba.com>

Thank you for your contribution, Guangguan.

Reviewed-by: Jan Karcher <jaka@...ux.ibm.com>

> ---
>   include/uapi/linux/smc.h | 2 ++
>   net/smc/smc_core.c       | 4 ++++
>   2 files changed, 6 insertions(+)
> 
> diff --git a/include/uapi/linux/smc.h b/include/uapi/linux/smc.h
> index bb4dacca31e7..837fcd4b0abc 100644
> --- a/include/uapi/linux/smc.h
> +++ b/include/uapi/linux/smc.h
> @@ -107,6 +107,8 @@ enum {
>   enum {
>   	SMC_NLA_LGR_R_V2_UNSPEC,
>   	SMC_NLA_LGR_R_V2_DIRECT,	/* u8 */
> +	SMC_NLA_LGR_R_V2_MAX_CONNS,	/* u8 */
> +	SMC_NLA_LGR_R_V2_MAX_LINKS,	/* u8 */
>   	__SMC_NLA_LGR_R_V2_MAX,
>   	SMC_NLA_LGR_R_V2_MAX = __SMC_NLA_LGR_R_V2_MAX - 1
>   };
> diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
> index 1e1475084bb4..ef5336df3b09 100644
> --- a/net/smc/smc_core.c
> +++ b/net/smc/smc_core.c
> @@ -319,6 +319,10 @@ static int smc_nl_fill_smcr_lgr_v2(struct smc_link_group *lgr,
>   		goto errattr;
>   	if (nla_put_u8(skb, SMC_NLA_LGR_R_V2_DIRECT, !lgr->uses_gateway))
>   		goto errv2attr;
> +	if (nla_put_u8(skb, SMC_NLA_LGR_R_V2_MAX_CONNS, lgr->max_conns))
> +		goto errv2attr;
> +	if (nla_put_u8(skb, SMC_NLA_LGR_R_V2_MAX_LINKS, lgr->max_links))
> +		goto errv2attr;
>   
>   	nla_nest_end(skb, v2_attrs);
>   	return 0;