net/smc: Extend SMC-R link group netlink attribute

Extend SMC-R link group netlink attribute SMC_GEN_LGR_SMCR.
Introduce SMC_NLA_LGR_R_BUF_TYPE to show the buffer type of
SMC-R link group.

Signed-off-by: Wen Gu <guwen@linux.alibaba.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 693f549..bb4dacc 100644 (file)
--- a/include/uapi/linux/smc.h
+++ b/include/uapi/linux/smc.h
@@ -124,6 +124,7 @@ enum {
        SMC_NLA_LGR_R_V2,               /* nest */
        SMC_NLA_LGR_R_NET_COOKIE,       /* u64 */
        SMC_NLA_LGR_R_PAD,              /* flag */
+       SMC_NLA_LGR_R_BUF_TYPE,         /* u8 */
        __SMC_NLA_LGR_R_MAX,
        SMC_NLA_LGR_R_MAX = __SMC_NLA_LGR_R_MAX - 1
 };

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index f26770c..ff49a11 100644 (file)
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -347,6 +347,8 @@ static int smc_nl_fill_lgr(struct smc_link_group *lgr,
                goto errattr;
        if (nla_put_u8(skb, SMC_NLA_LGR_R_TYPE, lgr->type))
                goto errattr;
+       if (nla_put_u8(skb, SMC_NLA_LGR_R_BUF_TYPE, lgr->buf_type))
+               goto errattr;
        if (nla_put_u8(skb, SMC_NLA_LGR_R_VLAN_ID, lgr->vlan_id))
                goto errattr;
        if (nla_put_u64_64bit(skb, SMC_NLA_LGR_R_NET_COOKIE,