From 0d30bbd03d8483548bed1fc1e96fc6cfd10248b1 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Sun, 16 Feb 2020 18:54:13 +0100 Subject: net: dsa: mv88e6xxx: Allow PCS registers to be retrieved via ethtool ethtool provides a generic mechanism for a driver to return the registers of an ethernet device. DSA uses this to give the port registers associated with an interfaces. Extend this to allow PCS registers to also be returned, if the port has a PCS associated to it. Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/chip.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers/net/dsa/mv88e6xxx/chip.c') diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 8c9289549688..316758a42a67 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1018,7 +1018,14 @@ static void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, int port, static int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port) { - return 32 * sizeof(u16); + struct mv88e6xxx_chip *chip = ds->priv; + int len; + + len = 32 * sizeof(u16); + if (chip->info->ops->serdes_get_regs_len) + len += chip->info->ops->serdes_get_regs_len(chip, port); + + return len; } static void mv88e6xxx_get_regs(struct dsa_switch *ds, int port, @@ -1043,6 +1050,9 @@ static void mv88e6xxx_get_regs(struct dsa_switch *ds, int port, p[i] = reg; } + if (chip->info->ops->serdes_get_regs) + chip->info->ops->serdes_get_regs(chip, port, &p[i]); + mv88e6xxx_reg_unlock(chip); } -- cgit