iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: mdio: add helpers for accessing the EEE CAP2 registers

Browse Source 
This adds helpers for accessing the EEE CAP2 registers.
For now only 2500baseT and 5000baseT modes are supported.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Heiner Kallweit 2024-02-14 21:16:19 +01:00 committed by David S. Miller
parent 71b605d320
commit 80e4021c25
1 changed files with 55 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
include/linux/mdio.h
View File

@ -439,6 +439,42 @@ static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val)
adv, val & MDIO_EEE_10GKR);
}
/**
* mii_eee_cap2_mod_linkmode_sup_t()
* @adv: target the linkmode settings
* @val: register value
*
* A function that translates value of following registers to the linkmode:
* IEEE 802.3-2022 45.2.3.11 "EEE control and capability 2" register (3.21)
*/
static inline void mii_eee_cap2_mod_linkmode_sup_t(unsigned long *adv, u32 val)
{
linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
adv, val & MDIO_EEE_2_5GT);
linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
adv, val & MDIO_EEE_5GT);
}
/**
* mii_eee_cap2_mod_linkmode_adv_t()
* @adv: target the linkmode advertisement settings
* @val: register value
*
* A function that translates value of following registers to the linkmode:
* IEEE 802.3-2022 45.2.7.16 "EEE advertisement 2" register (7.62)
* IEEE 802.3-2022 45.2.7.17 "EEE link partner ability 2" register (7.63)
* Note: Currently this function is the same as mii_eee_cap2_mod_linkmode_sup_t.
* For certain, not yet supported, modes however the bits differ.
* Therefore create separate functions already.
*/
static inline void mii_eee_cap2_mod_linkmode_adv_t(unsigned long *adv, u32 val)
{
linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
adv, val & MDIO_EEE_2_5GT);
linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
adv, val & MDIO_EEE_5GT);
}
/**
* linkmode_to_mii_eee_cap1_t()
* @adv: the linkmode advertisement settings
@ -466,6 +502,25 @@ static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv)
return result;
}
/**
* linkmode_to_mii_eee_cap2_t()
* @adv: the linkmode advertisement settings
*
* A function that translates linkmode to value for IEEE 802.3-2022 45.2.7.16
* "EEE advertisement 2" register (7.62)
*/
static inline u32 linkmode_to_mii_eee_cap2_t(unsigned long *adv)
{
u32 result = 0;
if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, adv))
result |= MDIO_EEE_2_5GT;
if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, adv))
result |= MDIO_EEE_5GT;
return result;
}
/**
* mii_10base_t1_adv_mod_linkmode_t()
* @adv: linkmode advertisement settings