user/sven/linux.git/drivers/net/pcs, branch v6.8.4

net: pcs: rzn1-miic: Convert to platform remove callback returning void

2023-12-06T03:51:09Z

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20231117095922.876489-5-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König Reviewed-by: Russell King (Oracle) Link: https://lore.kernel.org/r/82b728e14a68c421e269eff3b8083d9d6e62d956.1701713943.git.u.kleine-koenig@pengutronix.de Signed-off-by: Jakub Kicinski

net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers

2023-10-27T22:59:44Z

Add DW_2500BASEX case in xpcs_get_state( ) to update speed, duplex and pause Signed-off-by: Raju Lakkaraju Reviewed-by: Serge Semin Link: https://lore.kernel.org/r/20231027044306.291250-1-Raju.Lakkaraju@microchip.com Signed-off-by: Jakub Kicinski

net: pcs: xpcs: adapt Wangxun NICs for SGMII mode

2023-08-25T06:42:59Z

Wangxun NICs support the connection with SFP to RJ45 module. In this case, PCS need to be configured in SGMII mode. According to chapter 6.11.1 "SGMII Auto-Negitiation" of DesignWare Cores Ethernet PCS (version 3.20a) and custom design manual, do the following configuration when the interface mode is SGMII. 1. program VR_MII_AN_CTRL bit(3) [TX_CONFIG] = 1b (PHY side SGMII) 2. program VR_MII_AN_CTRL bit(8) [MII_CTRL] = 1b (8-bit MII) 3. program VR_MII_DIG_CTRL1 bit(0) [PHY_MODE_CTRL] = 1b Also CL37 AN in backplane configurations need to be enabled because of the special hardware design. Another thing to note is that PMA needs to be reconfigured before each CL37 AN configuration for SGMII, otherwise AN will fail, although we don't know why. On this device, CL37_ANSGM_STS (bit[4:1] of VR_MII_AN_INTR_STS) indicates the status received from remote link during the auto-negotiation, and self-clear after the auto-negotiation is complete. Meanwhile, CL37_ANCMPLT_INTR will be set to 1, to indicate CL37 AN is complete. So add another way to get the state for CL37 SGMII. Signed-off-by: Jiawen Wu Signed-off-by: David S. Miller

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

2023-08-25T06:42:58Z

Enable CL37 AN complete interrupt for DW XPCS. It requires to clear the bit(0) [CL37_ANCMPLT_INTR] of VR_MII_AN_INTR_STS after AN completed. And there is a quirk for Wangxun devices to enable CL37 AN in backplane configurations because of the special hardware design. Signed-off-by: Jiawen Wu Signed-off-by: David S. Miller

net: pcs: xpcs: support to switch mode for Wangxun NICs

2023-08-25T06:42:58Z

According to chapter 6 of DesignWare Cores Ethernet PCS (version 3.20a) and custom design manual, add a configuration flow for switching interface mode. If the interface changes, the following setting is required: 1. wait VR_XS_PCS_DIG_STS bit(4, 2) [PSEQ_STATE] = 100b (Power-Good) 2. write SR_XS_PCS_CTRL2 to select various PCS type 3. write SR_PMA_CTRL1 and/or SR_XS_PCS_CTRL1 for link speed 4. program PMA registers 5. write VR_XS_PCS_DIG_CTRL1 bit(15) [VR_RST] = 1b (Vendor-Specific Soft Reset) 6. wait for VR_XS_PCS_DIG_CTRL1 bit(15) [VR_RST] to get cleared Only 10GBASE-R/SGMII/1000BASE-X modes are planned for the current Wangxun devices. And there is a quirk for Wangxun devices to switch mode although the interface in phylink state has not changed, since PCS will change to default 10GBASE-R when the ethernet driver(txgbe) do LAN reset. Signed-off-by: Jiawen Wu Signed-off-by: David S. Miller

net: pcs: xpcs: add specific vendor supoprt for Wangxun 10Gb NICs

2023-08-25T06:42:58Z

Since Wangxun 10Gb NICs require some special configuration on the IP of Synopsys Designware XPCS, introduce dev_flag for different vendors. Read OUI from device identifier registers, to detect Wangxun devices. And xpcs_soft_reset() is skipped to avoid the reset of device identifier registers. Signed-off-by: Jiawen Wu Signed-off-by: David S. Miller

net: pcs: lynxi: implement pcs_disable op

2023-08-22T02:08:57Z

When switching from 10GBase-R/5GBase-R/USXGMII to one of the interface modes provided by mtk-pcs-lynxi we need to make sure to always perform a full configuration of the PHYA. Implement pcs_disable op which resets the stored interface mode to PHY_INTERFACE_MODE_NA to trigger a full reconfiguration once the LynxI PCS driver had previously been deselected in favor of another PCS driver such as the to-be-added driver for the USXGMII PCS found in MT7988. Signed-off-by: Daniel Golle Link: https://lore.kernel.org/r/f23d1a60d2c9d2fb72e32dcb0eaa5f7e867a3d68.1692327891.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2023-08-18T19:44:56Z

Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/ethernet/sfc/tc.c fa165e194997 ("sfc: don't unregister flow_indr if it was never registered") 3bf969e88ada ("sfc: add MAE table machinery for conntrack table") https://lore.kernel.org/all/20230818112159.7430e9b4@canb.auug.org.au/ No adjacent changes. Signed-off-by: Jakub Kicinski

net: pcs: lynx: fix lynx_pcs_link_up_sgmii() not doing anything in fixed-link mode

2023-08-13T11:32:44Z

lynx_pcs_link_up_sgmii() is supposed to update the PCS speed and duplex for the non-inband operating modes, and prior to the blamed commit, it did just that, but a mistake sneaked into the conversion and reversed the condition. It is easy for this to go undetected on platforms that also initialize the PCS in the bootloader, because Linux doesn't reset it (although maybe it should). The nature of the bug is that phylink will not touch the IF_MODE_HALF_DUPLEX | IF_MODE_SPEED_MSK fields when it should, and it will apparently keep working if the previous values set by the bootloader were correct. Fixes: c689a6528c22 ("net: pcs: lynx: update PCS driver to use neg_mode") Signed-off-by: Vladimir Oltean Reviewed-by: Russell King (Oracle) Signed-off-by: David S. Miller

net: pcs: Add missing put_device call in miic_create

2023-08-11T09:21:07Z

The reference of pdev->dev is taken by of_find_device_by_node, so it should be released when not need anymore. Fixes: 7dc54d3b8d91 ("net: pcs: add Renesas MII converter driver") Signed-off-by: Xiang Yang Reviewed-by: Vladimir Oltean Signed-off-by: David S. Miller