[PATCH 6.1 193/259] ncsi: Propagate carrier gain/loss events to the NCSI controller

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6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johnathan Mantey <johnathanx.mantey@xxxxxxxxx>

[ Upstream commit 3780bb29311eccb7a1c9641032a112eed237f7e3 ]

Report the carrier/no-carrier state for the network interface
shared between the BMC and the passthrough channel. Without this
functionality the BMC is unable to reconfigure the NIC in the event
of a re-cabling to a different subnet.

Signed-off-by: Johnathan Mantey <johnathanx.mantey@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/ncsi/ncsi-aen.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/ncsi/ncsi-aen.c b/net/ncsi/ncsi-aen.c
index 62fb1031763d1..f8854bff286cb 100644
--- a/net/ncsi/ncsi-aen.c
+++ b/net/ncsi/ncsi-aen.c
@@ -89,6 +89,11 @@ static int ncsi_aen_handler_lsc(struct ncsi_dev_priv *ndp,
 	if ((had_link == has_link) || chained)
 		return 0;
 
+	if (had_link)
+		netif_carrier_off(ndp->ndev.dev);
+	else
+		netif_carrier_on(ndp->ndev.dev);
+
 	if (!ndp->multi_package && !nc->package->multi_channel) {
 		if (had_link) {
 			ndp->flags |= NCSI_DEV_RESHUFFLE;
-- 
2.40.1






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