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Message-Id: <1702214654-32069-6-git-send-email-guwen@linux.alibaba.com>
Date:   Sun, 10 Dec 2023 21:24:06 +0800
From:   Wen Gu <guwen@...ux.alibaba.com>
To:     wintera@...ux.ibm.com, wenjia@...ux.ibm.com, hca@...ux.ibm.com,
        gor@...ux.ibm.com, agordeev@...ux.ibm.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        kgraul@...ux.ibm.com, jaka@...ux.ibm.com
Cc:     borntraeger@...ux.ibm.com, svens@...ux.ibm.com,
        alibuda@...ux.alibaba.com, tonylu@...ux.alibaba.com,
        guwen@...ux.alibaba.com, linux-s390@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [RFC PATCH net-next 05/13] net/smc: implement some unsupported operations of loopback-ism

vlan operations are not supported currently since the need for vlan in
loopback situation does not seem to be strong.

signal_event operation is not supported since no event now needs to be
processed by loopback-ism device.

Signed-off-by: Wen Gu <guwen@...ux.alibaba.com>
---
 net/smc/smc_loopback.c | 36 +++++++++++++++++++++++++++++++-----
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/net/smc/smc_loopback.c b/net/smc/smc_loopback.c
index 39e8c8d..349a969 100644
--- a/net/smc/smc_loopback.c
+++ b/net/smc/smc_loopback.c
@@ -50,6 +50,32 @@ static int smc_lo_query_rgid(struct smcd_dev *smcd, struct smcd_gid *rgid,
 	return 0;
 }
 
+static int smc_lo_add_vlan_id(struct smcd_dev *smcd, u64 vlan_id)
+{
+	return -EOPNOTSUPP;
+}
+
+static int smc_lo_del_vlan_id(struct smcd_dev *smcd, u64 vlan_id)
+{
+	return -EOPNOTSUPP;
+}
+
+static int smc_lo_set_vlan_required(struct smcd_dev *smcd)
+{
+	return -EOPNOTSUPP;
+}
+
+static int smc_lo_reset_vlan_required(struct smcd_dev *smcd)
+{
+	return -EOPNOTSUPP;
+}
+
+static int smc_lo_signal_event(struct smcd_dev *dev, struct smcd_gid *rgid,
+			       u32 trigger_irq, u32 event_code, u64 info)
+{
+	return 0;
+}
+
 static int smc_lo_supports_v2(void)
 {
 	return SMC_LO_V2_CAPABLE;
@@ -78,11 +104,11 @@ static struct device *smc_lo_get_dev(struct smcd_dev *smcd)
 	.query_remote_gid = smc_lo_query_rgid,
 	.register_dmb		= NULL,
 	.unregister_dmb		= NULL,
-	.add_vlan_id		= NULL,
-	.del_vlan_id		= NULL,
-	.set_vlan_required	= NULL,
-	.reset_vlan_required	= NULL,
-	.signal_event		= NULL,
+	.add_vlan_id = smc_lo_add_vlan_id,
+	.del_vlan_id = smc_lo_del_vlan_id,
+	.set_vlan_required = smc_lo_set_vlan_required,
+	.reset_vlan_required = smc_lo_reset_vlan_required,
+	.signal_event = smc_lo_signal_event,
 	.move_data		= NULL,
 	.supports_v2 = smc_lo_supports_v2,
 	.get_local_gid = smc_lo_get_local_gid,
-- 
1.8.3.1

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