linux-kernel - [PATCH net-next v2 6/6] net/smc: Extend SMC-R link group netlink attribute

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Date:   Thu, 14 Jul 2022 17:44:05 +0800
From:   Wen Gu <guwen@...ux.alibaba.com>
To:     kgraul@...ux.ibm.com, wenjia@...ux.ibm.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Cc:     linux-s390@...r.kernel.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next v2 6/6] 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@...ux.alibaba.com>
---
 include/uapi/linux/smc.h | 1 +
 net/smc/smc_core.c       | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/include/uapi/linux/smc.h b/include/uapi/linux/smc.h
index 693f549..bb4dacc 100644
--- 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
--- 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,
-- 
1.8.3.1