[PATCH 6.1 025/112] net: mscc: ocelot: fix eMAC TX RMON stats for bucket 256-511 and above

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

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

From: Vladimir Oltean <vladimir.oltean@xxxxxxx>

[ Upstream commit 52eda4641d041667fa059f4855c5f88dcebd8afe ]

There is a typo in the driver due to which we report incorrect TX RMON
counters for the 256-511 octet bucket and all the other buckets larger
than that.

Bug found with the selftest at
https://patchwork.kernel.org/project/netdevbpf/patch/20231211223346.2497157-9-tobias@xxxxxxxxxxxxxx/

Fixes: e32036e1ae7b ("net: mscc: ocelot: add support for all sorts of standardized counters present in DSA")
Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Reviewed-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20231214000902.545625-1-vladimir.oltean@xxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/mscc/ocelot_stats.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot_stats.c b/drivers/net/ethernet/mscc/ocelot_stats.c
index 0066219bb0e89..6b95262dad904 100644
--- a/drivers/net/ethernet/mscc/ocelot_stats.c
+++ b/drivers/net/ethernet/mscc/ocelot_stats.c
@@ -216,10 +216,10 @@ static void ocelot_port_rmon_stats_cb(struct ocelot *ocelot, int port, void *pri
 	rmon_stats->hist_tx[0] = s[OCELOT_STAT_TX_64];
 	rmon_stats->hist_tx[1] = s[OCELOT_STAT_TX_65_127];
 	rmon_stats->hist_tx[2] = s[OCELOT_STAT_TX_128_255];
-	rmon_stats->hist_tx[3] = s[OCELOT_STAT_TX_128_255];
-	rmon_stats->hist_tx[4] = s[OCELOT_STAT_TX_256_511];
-	rmon_stats->hist_tx[5] = s[OCELOT_STAT_TX_512_1023];
-	rmon_stats->hist_tx[6] = s[OCELOT_STAT_TX_1024_1526];
+	rmon_stats->hist_tx[3] = s[OCELOT_STAT_TX_256_511];
+	rmon_stats->hist_tx[4] = s[OCELOT_STAT_TX_512_1023];
+	rmon_stats->hist_tx[5] = s[OCELOT_STAT_TX_1024_1526];
+	rmon_stats->hist_tx[6] = s[OCELOT_STAT_TX_1527_MAX];
 }
 
 void ocelot_port_get_rmon_stats(struct ocelot *ocelot, int port,
-- 
2.43.0







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