linux-toradex.git/include/linux/mii.h, branch v5.14-rc6

net: mii: add linkmode_adv_to_mii_adv_x()

2020-03-16T00:10:14+00:00

Add a helper to convert a linkmode advertisement to a clause 37
advertisement value for 1000base-x and 2500base-x.

Signed-off-by: Russell King 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: mii: convert mii_lpa_to_ethtool_lpa_x() to linkmode variant

2020-03-16T00:10:14+00:00

Add a LPA to linkmode decoder for 1000BASE-X protocols; this decoder
only provides the modify semantics similar to other such decoders.
This replaces the unused mii_lpa_to_ethtool_lpa_x() helper.

Signed-off-by: Russell King 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

mii: Add helpers for parsing SGMII auto-negotiation

2020-01-06T07:22:32+00:00

Typically a MAC PCS auto-configures itself after it receives the
negotiated copper-side link settings from the PHY, but some MAC devices
are more special and need manual interpretation of the SGMII AN result.

In other cases, the PCS exposes the entire tx_config_reg base page as it
is transmitted on the wire during auto-negotiation, so it makes sense to
be able to decode the equivalent lp_advertised bit mask from the raw u16
(of course, "lp" considering the PCS to be the local PHY).

Therefore, add the bit definitions for the SGMII registers 4 and 5
(local device ability, link partner ability), as well as a link_mode
conversion helper that can be used to feed the AN results into
phy_resolve_aneg_linkmode.

Signed-off-by: Vladimir Oltean 
Signed-off-by: David S. Miller

net: phy: fix write to mii-ctrl1000 register

2019-10-05T01:11:08+00:00

When userspace writes to the MII_ADVERTISE register, we update phylib's
advertising mask and trigger a renegotiation.  However, writing to the
MII_CTRL1000 register, which contains the gigabit advertisement, does
neither.  This can lead to phylib's copy of the advertisement becoming
de-synced with the values in the PHY register set, which can result in
incorrect negotiation resolution.

Fixes: 5502b218e001 ("net: phy: use phy_resolve_aneg_linkmode in genphy_read_status")
Reviewed-by: Andrew Lunn 
Signed-off-by: Russell King 
Signed-off-by: David S. Miller

net: mii: Fix PAUSE cap advertisement from linkmode_adv_to_lcl_adv_t() helper

2019-03-28T05:49:06+00:00

With a recent link mode advertisement code update this helper
providing local pause capability translation used for flow
control link mode negotiation got broken.
For eth drivers using this helper, the issue is apparent only
if either PAUSE or ASYM_PAUSE is being advertised.

Fixes: 3c1bcc8614db ("net: ethernet: Convert phydev advertize and supported from u32 to link mode")
Signed-off-by: Claudiu Manoil 
Signed-off-by: David S. Miller

net: mii: mii_lpa_mod_linkmode_lpa_t: Make use of linkmode_mod_bit helper

2018-12-06T00:26:16+00:00

Replace the if else code structure with a call to the helper
linkmode_mod_bit.

Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: mii: Add mii_lpa_mod_linkmode_lpa_t

2018-12-06T00:26:16+00:00

Add a _mod_ variant of mii_lpa_to_linkmode_lpa_t. Use this to fix the
genphy_read_status() where the 1G link partner features are getting
lost.

Fixes: c0ec3c273677 ("net: phy: Convert u32 phydev->lp_advertising to linkmode")
Reported-by: Heiner Kallweit 
Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: mii: Rename mii_stat1000_to_linkmode_lpa_t

2018-12-06T00:26:16+00:00

Rename mii_stat1000_to_linkmode_lpa_t to
mii_stat1000_mod_linkmode_lpa_t to indicate it modifies the passed
linkmode bitmap, without clearing any other bits.

Add a helper to set/clear bits in a linkmode.

Use this helper to ensure bit are clear which the stat1000 indicates
should not be set.

Fixes: c0ec3c273677 ("net: phy: Convert u32 phydev->lp_advertising to linkmode")
Suggested-by: Heiner Kallweit 
Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: mii: Fix autoneg in mii_lpa_to_linkmode_lpa_t()

2018-12-06T00:26:16+00:00

mii_adv_to_linkmode_adv_t() clears all bits before setting it needs to
set. This means the freshly set Autoneg gets cleared.

Change the order, and add comments about it clearing the old content
of the bitmap.

Fixes: c0ec3c273677 ("net: phy: Convert u32 phydev->lp_advertising to linkmode")
Reported-by: Heiner Kallweit 
Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: phy: Fixup kerneldoc markup.

2018-11-11T18:10:01+00:00

Add missing markup for function parameters

Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller