Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
net: phy: broadcom: Add LPI counter
Add the ability to read the PHY maintained LPI counter which is in the
Clause 45 vendor space, device address 7, offset 0x803F. The counter is
cleared on read.
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230531231729.1873932-1-florian.fainelli@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
authored by
Florian Fainelli
and committed by
Jakub Kicinski
e8b6f79b
733b3e27
+14
-7
+12
-7
drivers/net/phy/bcm-phy-lib.c
+12
-7
drivers/net/phy/bcm-phy-lib.c
···
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struct bcm_phy_hw_stat {
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const char *string;
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-
u8 reg;
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+
int devad;
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+
u16 reg;
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u8 shift;
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u8 bits;
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};
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/* Counters freeze at either 0xffff or 0xff, better than nothing */
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static const struct bcm_phy_hw_stat bcm_phy_hw_stats[] = {
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-
{ "phy_receive_errors", MII_BRCM_CORE_BASE12, 0, 16 },
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-
{ "phy_serdes_ber_errors", MII_BRCM_CORE_BASE13, 8, 8 },
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-
{ "phy_false_carrier_sense_errors", MII_BRCM_CORE_BASE13, 0, 8 },
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{ "phy_local_rcvr_nok", MII_BRCM_CORE_BASE14, 8, 8 },
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{ "phy_remote_rcv_nok", MII_BRCM_CORE_BASE14, 0, 8 },
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+
{ "phy_receive_errors", -1, MII_BRCM_CORE_BASE12, 0, 16 },
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+
{ "phy_serdes_ber_errors", -1, MII_BRCM_CORE_BASE13, 8, 8 },
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+
{ "phy_false_carrier_sense_errors", -1, MII_BRCM_CORE_BASE13, 0, 8 },
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+
{ "phy_local_rcvr_nok", -1, MII_BRCM_CORE_BASE14, 8, 8 },
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+
{ "phy_remote_rcv_nok", -1, MII_BRCM_CORE_BASE14, 0, 8 },
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{ "phy_lpi_count", MDIO_MMD_AN, BRCM_CL45VEN_EEE_LPI_CNT, 0, 16 },
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};
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int bcm_phy_get_sset_count(struct phy_device *phydev)
···
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int val;
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u64 ret;
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-
val = phy_read(phydev, stat.reg);
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+
if (stat.devad < 0)
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val = phy_read(phydev, stat.reg);
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+
else
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val = phy_read_mmd(phydev, stat.devad, stat.reg);
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if (val < 0) {
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ret = U64_MAX;
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} else {