Commit graph

8 commits

Author SHA1 Message Date
Christophe JAILLET
b01b59a4fa net: phy: Constify struct mdio_device_id
'struct mdio_device_id' is not modified in these drivers.

Constifying these structures moves some data to a read-only section, so
increase overall security.

On a x86_64, with allmodconfig, as an example:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  27014	  12792	      0	  39806	   9b7e	drivers/net/phy/broadcom.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  27206	  12600	      0	  39806	   9b7e	drivers/net/phy/broadcom.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/403c381b7d9156b67ad68ffc44b8eee70c5e86a9.1736691226.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-14 15:01:32 -08:00
Russell King (Oracle)
c64c7fa0a7 net: phy: bcm84881: implement phy_inband_caps() method
BCM84881 has no support for inband signalling, so this is a trivial
implementation that returns no support for inband.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/E1tIUrj-006IU6-ON@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-04 19:19:07 -08:00
Christophe JAILLET
9234a2549c net: phy: bcm84881: Fix some error handling paths
If phy_read_mmd() fails, the error code stored in 'bmsr' should be returned
instead of 'val' which is likely to be 0.

Fixes: 75f4d8d10e ("net: phy: add Broadcom BCM84881 PHY driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/3e1755b0c40340d00e089d6adae5bca2f8c79e53.1727982168.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-04 16:19:00 -07:00
Russell King (Oracle)
a22583338e net: phy: bcm84881: fill in possible_interfaces
Fill in the possible_interfaces member. This PHY driver only supports
a single configuration found on SFPs.

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/E1r6VI0-00DDLf-Tb@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-27 18:04:12 -08:00
Russell King
796a8fa289 net: phy: bcm84881: clear settings on link down
Clear the link partner advertisement, speed, duplex and pause when
the link goes down, as other phylib drivers do.  This avoids the
stale link partner, speed and duplex settings being reported via
ethtool.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-23 15:55:35 -07:00
Dejin Zheng
331c7372bd net: phy: bcm84881: use phy_read_mmd_poll_timeout() to simplify the code
use phy_read_mmd_poll_timeout() to replace the poll codes for
simplify bcm84881_wait_init() function.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-23 22:00:02 -07:00
Russell King
e0f909bc3a net: switch to using PHY_INTERFACE_MODE_10GBASER rather than 10GKR
Switch network drivers, phy drivers, and SFP/phylink over to use the
more correct 10GBASE-R, rather than 10GBASE-KR. 10GBASE-KR is backplane
ethernet, which is 10GBASE-R with autonegotiation on top, which our
current usage on the affected platforms does not have.

The only remaining user of PHY_INTERFACE_MODE_10GKR is the Aquantia
PHY, which has a separate mode for 10GBASE-KR.

For Marvell mvpp2, we detect 10GBASE-KR, and rewrite it to 10GBASE-R
for compatibility with existing DT - this is the only network driver
at present that makes use of PHY_INTERFACE_MODE_10GKR.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-05 15:05:35 -08:00
Russell King
75f4d8d10e net: phy: add Broadcom BCM84881 PHY driver
Add a rudimentary Clause 45 driver for the BCM84881 PHY, found on
Methode DM7052 SFPs.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-11 11:53:42 -08:00