Commit 2153e151 authored by Stefan Eichenberger's avatar Stefan Eichenberger Committed by Jakub Kicinski
Browse files

net: phy: add a new phy_device flag to keep preamble before sfd 



Add a new flag, PHY_F_KEEP_PREAMBLE_BEFORE_SFD, to indicate that the PHY
shall not remove the preamble before the SFD if it supports it. MACs
that do not support receiving frames without a preamble can set this
flag.

Signed-off-by: default avatarStefan Eichenberger <stefan.eichenberger@toradex.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Tested-by: default avatarMaxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: default avatarMaxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20260120203905.23805-2-eichest@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 31d44a37

include/linux/phy.h

+3 −2
Original line number Diff line number Diff line
@@ -812,6 +812,7 @@ struct phy_device { 
/* Generic phy_device::dev_flags */

#define PHY_F_NO_IRQ			0x80000000

#define PHY_F_RXC_ALWAYS_ON		0x40000000

#define PHY_F_KEEP_PREAMBLE_BEFORE_SFD	0x20000000



#define to_phy_device(__dev)	container_of_const(to_mdio_device(__dev), struct phy_device, mdio)