The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 953b0dcbe2e3f7bee98cc3bca2ec82c8298e9c16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= kabel@kernel.org Date: Thu, 1 Jul 2021 00:22:31 +0200 Subject: [PATCH] net: dsa: mv88e6xxx: enable SerDes PCS register dump via ethtool -d on Topaz MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
Commit bf3504cea7d7e ("net: dsa: mv88e6xxx: Add 6390 family PCS registers to ethtool -d") added support for dumping SerDes PCS registers via ethtool -d for Peridot.
The same implementation is also valid for Topaz, but was not enabled at the time.
Signed-off-by: Marek Behún kabel@kernel.org Fixes: bf3504cea7d7e ("net: dsa: mv88e6xxx: Add 6390 family PCS registers to ethtool -d") Reviewed-by: Andrew Lunn andrew@lunn.ch Signed-off-by: David S. Miller davem@davemloft.net
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 1e95a0facbd4..beb41572d04e 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -3626,6 +3626,8 @@ static const struct mv88e6xxx_ops mv88e6141_ops = { .serdes_get_sset_count = mv88e6390_serdes_get_sset_count, .serdes_get_strings = mv88e6390_serdes_get_strings, .serdes_get_stats = mv88e6390_serdes_get_stats, + .serdes_get_regs_len = mv88e6390_serdes_get_regs_len, + .serdes_get_regs = mv88e6390_serdes_get_regs, .phylink_validate = mv88e6341_phylink_validate, };
@@ -4435,6 +4437,8 @@ static const struct mv88e6xxx_ops mv88e6341_ops = { .serdes_get_sset_count = mv88e6390_serdes_get_sset_count, .serdes_get_strings = mv88e6390_serdes_get_strings, .serdes_get_stats = mv88e6390_serdes_get_stats, + .serdes_get_regs_len = mv88e6390_serdes_get_regs_len, + .serdes_get_regs = mv88e6390_serdes_get_regs, .phylink_validate = mv88e6341_phylink_validate, };