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net: phy: Add helper for advertise to lcl value

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Add a helper to convert the local advertising to an LCL capabilities,
which is then used to resolve pause flow control settings.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn
2018-09-29 23:04:13 +02:00
committed by David S. Miller
parent edc7ccbbcf
commit 5f991f7bdd
8 changed files with 26 additions and 34 deletions
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19
include/linux/mii.h
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@@ -334,6 +334,25 @@ static inline void mii_adv_to_linkmode_adv_t(unsigned long *advertising,
linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising);
}
/**
* ethtool_adv_to_lcl_adv_t
* @advertising:pointer to ethtool advertising
*
* A small helper function that translates ethtool advertising to LVL
* pause capabilities.
*/
static inline u32 ethtool_adv_to_lcl_adv_t(u32 advertising)
{
u32 lcl_adv = 0;
if (advertising & ADVERTISED_Pause)
lcl_adv |= ADVERTISE_PAUSE_CAP;
if (advertising & ADVERTISED_Asym_Pause)
lcl_adv |= ADVERTISE_PAUSE_ASYM;
return lcl_adv;
}
/**
* mii_advertise_flowctrl - get flow control advertisement flags
* @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)