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net: ethtool: Add generic parts of cable test TDR

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Add the generic parts of the code used to trigger a cable test and
return raw TDR data. Any PHY driver which support this must implement
the new driver op.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>

v2
Update nxp-tja11xx for API change.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn
2020-05-27 00:21:38 +02:00
committed by David S. Miller
parent a331172b15
commit 1a644de29f
7 changed files with 144 additions and 10 deletions
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13
include/linux/phy.h
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@@ -699,6 +699,10 @@ struct phy_driver {
/* Start a cable test */
int (*cable_test_start)(struct phy_device *dev);
/* Start a raw TDR cable test */
int (*cable_test_tdr_start)(struct phy_device *dev);
/* Once per second, or on interrupt, request the status of the
* test.
*/
@@ -1251,6 +1255,8 @@ int phy_reset_after_clk_enable(struct phy_device *phydev);
#if IS_ENABLED(CONFIG_PHYLIB)
int phy_start_cable_test(struct phy_device *phydev,
struct netlink_ext_ack *extack);
int phy_start_cable_test_tdr(struct phy_device *phydev,
struct netlink_ext_ack *extack);
#else
static inline
int phy_start_cable_test(struct phy_device *phydev,
@@ -1259,6 +1265,13 @@ int phy_start_cable_test(struct phy_device *phydev,
NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
return -EOPNOTSUPP;
}
static inline
int phy_start_cable_test_tdr(struct phy_device *phydev,
struct netlink_ext_ack *extack)
{
NL_SET_ERR_MSG(extack, "Kernel not compiled with PHYLIB support");
return -EOPNOTSUPP;
}
#endif
int phy_cable_test_result(struct phy_device *phydev, u8 pair, u16 result);