kernel/git/next/linux-next.git/drivers/net/pcs, branch akpm

net: pcs: add Renesas MII converter driver

2022-06-27T10:37:55+00:00

Add a PCS driver for the MII converter that is present on the Renesas RZ/N1 SoC. This MII converter is reponsible for converting MII to RMII/RGMII or act as a MII pass-trough. Exposing it as a PCS allows to reuse it in both the switch driver and the stmmac driver. Currently, this driver only allows the PCS to be used by the dual Cortex-A7 subsystem since the register locking system is not used. Signed-off-by: Clément Léger Reviewed-by: Vladimir Oltean Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: pcs: xpcs: depends on PHYLINK in Kconfig

2022-06-25T05:49:22+00:00

This is yet another attempt at fixing: >> ERROR: modpost: "phylink_mii_c22_pcs_encode_advertisement" [drivers/net/pcs/pcs_xpcs.ko] undefined! >> ERROR: modpost: "phylink_mii_c22_pcs_decode_state" [drivers/net/pcs/pcs_xpcs.ko] undefined! Switch XPCS to be invisible, as Russell points out it's "selected" by its consumers. Drop the dependency on MDIO_BUS as "depends" is meaningless on "selected" symbols. Reported-by: kernel test robot Fixes: b47aec885bcd ("net: pcs: xpcs: add CL37 1000BASE-X AN support") Link: https://lore.kernel.org/netdev/20220620201915.1195280-1-kuba@kernel.org/ Link: https://lore.kernel.org/r/20220622083521.0de3ea5c@kernel.org/ Link: https://lore.kernel.org/r/20220623202933.2341938-1-kuba@kernel.org Signed-off-by: Jakub Kicinski

net: pcs: lynx: consolidate sgmii and 1000base-x config code

2022-06-24T18:27:24+00:00

Consolidate lynx_pcs_config_1000basex() and lynx_pcs_config_sgmii() into a single function. The differences between these two are: - The value that the link timer is set to. - The value of the IF_MODE register. Everything else is identical. This patch depends on "net: phylink: add QSGMII support to phylink_mii_c22_pcs_encode_advertisement()". Signed-off-by: Russell King (Oracle) Tested-by: Ioana Ciornei Reviewed-by: Ioana Ciornei Signed-off-by: Jakub Kicinski

net: pcs: lynx: use mdiodev accessors

2022-06-23T01:36:03+00:00

Use the recently introduced mdiodev accessors for the lynx PCS. Signed-off-by: Russell King (Oracle) Link: https://lore.kernel.org/r/E1o3Zd8-002yHI-G2@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski

net: pcs: pcs-xpcs: use mii_bmcr_encode_fixed()

2022-06-19T09:38:26+00:00

Use the newly introduced mii_bmcr_encode_fixed() for the xpcs driver. Signed-off-by: Russell King (Oracle) Signed-off-by: David S. Miller

net: pcs: xpcs: add CL37 1000BASE-X AN support

2022-06-17T09:55:35+00:00

For CL37 1000BASE-X AN, DW xPCS does not support C22 method but offers C45 vendor-specific MII MMD for programming. We also add the ability to disable Autoneg (through ethtool for certain network switch that supports 1000BASE-X (1000Mbps and Full-Duplex) but not Autoneg capability. v4: Fixes to comment from Russell King. Thanks! https://patchwork.kernel.org/comment/24894239/ Make xpcs_modify_changed() as private, change to use mdiodev_modify_changed() for cleaner code. v3: Fixes to issues spotted by Russell King. Thanks! https://patchwork.kernel.org/comment/24890210/ Use phylink_mii_c22_pcs_decode_state(), remove unnecessary interrupt clearing and skip speed & duplex setting if AN is enabled. v2: Fixes to issues spotted by Russell King in v1. Thanks! https://patchwork.kernel.org/comment/24826650/ Use phylink_mii_c22_pcs_encode_advertisement() and implement C45 MII ADV handling since IP only support C45 access. Tested-by: Emilio Riva Signed-off-by: Ong Boon Leong Reviewed-by: Russell King (Oracle) Signed-off-by: David S. Miller

net: make xpcs_do_config to accept advertising for pcs-xpcs and sja1105

2022-06-17T09:55:35+00:00

xpcs_config() has 'advertising' input that is required for C37 1000BASE-X AN in later patch series. So, we prepare xpcs_do_config() for it. For sja1105, xpcs_do_config() is used for xpcs configuration without depending on advertising input, so set to NULL. Reported-by: kernel test robot Signed-off-by: Ong Boon Leong Signed-off-by: David S. Miller

net: pcs: pcs-xpcs: Convert to mdiobus_c45_read

2022-05-02T11:21:38+00:00

Stop using the helpers to construct a special mdio address which indicates C45. Instead use the C45 accessors, which will call the busses C45 specific read/write API. Reviewed-by: Vladimir Oltean Tested-by: Vladimir Oltean Signed-off-by: Andrew Lunn Signed-off-by: Paolo Abeni

net: stmmac/xpcs: convert to pcs_validate()

2022-01-26T11:20:37+00:00

stmmac explicitly calls the xpcs driver to validate the ethtool linkmodes. This is no longer necessary as phylink now supports validation through a PCS method. Convert both drivers to use this new mechanism. Tested-by: Wong Vee Khee # Intel EHL Signed-off-by: Russell King (Oracle) Signed-off-by: David S. Miller

net: xpcs: add support for retrieving supported interface modes

2022-01-26T11:20:37+00:00

Add a function to the xpcs driver to retrieve the supported PHY interface modes, which can be used by drivers to fill in phylink's supported_interfaces mask. We validate the interface bit index to ensure that it fits within the bitmap as xpcs lists PHY_INTERFACE_MODE_MAX in an entry. Tested-by: Wong Vee Khee # Intel EHL Signed-off-by: Russell King (Oracle) Signed-off-by: David S. Miller