BMC/Intel-BMC/linux.git/drivers/net/phy/phy-c45.c, branch dev-5.2

Add genphy_c45_config_aneg() function to phy-c45.c

2019-09-10T09:35:09+00:00

[ Upstream commit 2ebb991641d3f64b70fec0156e2b6933810177e9 ] Commit 34786005eca3 ("net: phy: prevent PHYs w/o Clause 22 regs from calling genphy_config_aneg") introduced a check that aborts phy_config_aneg() if the phy is a C45 phy. This causes phy_state_machine() to call phy_error() so that the phy ends up in PHY_HALTED state. Instead of returning -EOPNOTSUPP, call genphy_c45_config_aneg() (analogous to the C22 case) so that the state machine can run correctly. genphy_c45_config_aneg() closely resembles mv3310_config_aneg() in drivers/net/phy/marvell10g.c, excluding vendor specific configurations for 1000BaseT. Fixes: 22b56e827093 ("net: phy: replace genphy_10g_driver with genphy_c45_driver") Signed-off-by: Marco Hartmann Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

net: phy: consider AN_RESTART status when reading link status

2019-08-25T14:10:38+00:00

[ Upstream commit c36757eb9dee13681227ad3676d37f14b3a2b2af ] After configuring and restarting aneg we immediately try to read the link status. On some systems the PHY may not yet have cleared the "aneg complete" and "link up" bits, resulting in a false link-up signal. See [0] for a report. Clause 22 and 45 both require the PHY to keep the AN_RESTART bit set until the PHY actually starts auto-negotiation. Let's consider this in the generic functions for reading link status. The commit marked as fixed is the first one where the patch applies cleanly. [0] https://marc.info/?t=156518400300003&r=1&w=2 Fixes: c1164bb1a631 ("net: phy: check PMAPMD link status only in genphy_c45_read_link") Tested-by: Yonglong Liu Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman

treewide: Add SPDX license identifier for missed files

2019-05-21T08:50:45+00:00

Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

net: phy: replace genphy_10g_driver with genphy_c45_driver

2019-04-08T23:24:05+00:00

Recently a number of generic functions for Clause 45 PHY's has been added. So let's replace the old very limited genphy_10g_driver with a genphy_c45_driver. This driver isn't limited to 10G, however it's worth to be noted that Clause 45 doesn't cover 1000Base-T. For using 1000Base-T with a Clause 45 PHY a dedicated PHY driver using vendor registers is needed. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: deal properly with autoneg incomplete in genphy_c45_read_lpa

2019-04-02T20:16:17+00:00

The link partner advertisement registers are not guaranteed to contain valid values if autoneg is incomplete. Therefore, if MDIO_AN_STAT1_COMPLETE isn't set, let's clear all link partner capability bits. This also avoids unnecessary register reads if link is down and phylib is in polling mode. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: use c45 standard to detect link partner autoneg capability

2019-04-02T20:16:17+00:00

Currently mii_lpa_mod_linkmode_lpa_t() checks bit LPA_LPACK to detect whether link partner supports autoneg. This doesn't work correctly at least on Aquantia AQCS109 when it negotiates 1000Base-T2 mode. The "link partner is autoneg-capable" bit as defined by clause 45 is set however. Better let's switch in general to use the clause 45 standard for link partner autoneg detection. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: use phy_modify_mmd_changed in genphy_c45_an_config_aneg

2019-03-04T21:10:10+00:00

As can be seen from the usage of the return value, we should use phy_modify_mmd_changed() here. Fixes: 9a5dc8af4416 ("net: phy: add genphy_c45_an_config_aneg") Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller

net: phy: remove gen10g_no_soft_reset

2019-03-04T05:47:57+00:00

genphy_no_soft_reset and gen10g_no_soft_reset are both the same no-ops, one is enough. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: don't export gen10g_read_status

2019-03-04T05:47:42+00:00

gen10g_read_status is deprecated, therefore stop exporting it. We don't want to encourage anybody to use it. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: remove gen10g_config_init

2019-03-04T05:47:42+00:00

ETHTOOL_LINK_MODE_10000baseT_Full_BIT is set anyway in the supported and advertising bitmap because it's part of PHY_10GBIT_FEATURES. And all users of gen10g_config_init use PHY_10GBIT_FEATURES. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller