net/smc: Extend SMCR v2 linkgroup netlink attribute

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@linux.alibaba.com>
Reviewed-by: Jan Karcher <jaka@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/smc.h b/include/uapi/linux/smc.h
index bb4dacc..837fcd4 100644 (file)
--- 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 aae8d3f..bd01dd3 100644 (file)
--- 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;