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The xpcs_switch_interface_mode function was introduced to handle
interface switching.
According to the XPCS datasheet, a soft reset is required to initiate
Clause 37 auto-negotiation when the XPCS switches interface modes.
When the interface mode switches from 2500BASE-X to SGMII,
re-initiating Clause 37 auto-negotiation is required for the SGMII
interface mode to function properly.
Signed-off-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Link: https://patch.msgid.link/20250227121522.1802832-3-yong.liang.choong@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Place register number definitions immediately above their field
definitions and order by register number.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1tjblS-00448F-8v@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As all PCS are using the neg_mode parameter rather than the legacy
an_mode, remove the ability to use the legacy an_mode. We remove the
tests in the phylink code, unconditionally passing the PCS neg_mode
parameter to PCS methods, and remove setting the flag from drivers.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tidPn-0040hd-2R@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Move xpcs_config_eee() with the other EEE-related functions.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1thRQd-003w7a-MM@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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There is now no need to pass the mult_fact into xpcs_config_eee(), so
let's remove that argument and use xpcs->eee_mult_fact directly. While
changing the function signature, as we pass true/false for enable, use
"bool" instead of "int" for this.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1thRQY-003w7U-IG@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Make xpcs_config_eee() private to the XPCS driver, called only from
the phylink pcs_disable_eee() and pcs_enable_eee() methods.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1thRQT-003w7O-Ec@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Convert XPCS to use the new pcs_disable_eee() and pcs_enable_eee()
methods. Since stmmac is the only user of xpcs_config_eee(), we can
make this a no-op along with this change.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1thRQJ-003w7C-6v@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a function to separate out the EEE clock multiplying factor. This
will be called by the stmmac driver to configure this value.
It would have been better had the driver used the CLK API to retrieve
this clock, get its rate and calculate the appropriate multiplier, but
that door has closed.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1thRQ8-003w70-VT@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Simplify miic_parse_dt() by using the for_each_available_child_of_node()
helper instead of manually skipping unavailable child nodes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/3e394d4cf8204bcf17b184bfda474085aa8ed0dd.1738771631.git.geert+renesas@glider.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Populate the PCS supported_interfaces bitmap with the interfaces that
this PCS supports. This makes the manual checking in miic_validate()
redundant, so remove that.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1tfhYq-003aTm-Nx@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR (net-6.13-rc8).
Conflicts:
drivers/net/ethernet/realtek/r8169_main.c
1f691a1fc4be ("r8169: remove redundant hwmon support")
152d00a91396 ("r8169: simplify setting hwmon attribute visibility")
https://lore.kernel.org/20250115122152.760b4e8d@canb.auug.org.au
Adjacent changes:
drivers/net/ethernet/broadcom/bnxt/bnxt.c
152f4da05aee ("bnxt_en: add support for rx-copybreak ethtool command")
f0aa6a37a3db ("eth: bnxt: always recalculate features after XDP clearing, fix null-deref")
drivers/net/ethernet/intel/ice/ice_type.h
50327223a8bb ("ice: add lock to protect low latency interface")
dc26548d729e ("ice: Fix quad registers read on E825")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pass the current neg_mode into phylink_mii_c22_pcs_get_state() and
phylink_mii_c22_pcs_decode_state(). Update all users of phylink PCS
that use these functions.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1tXGeY-000Et9-8g@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pass the current neg_mode into the .pcs_get_state() method. Update all
users of phylink PCS.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1tXGeT-000Et3-4L@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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xpcs_config_2500basex() sets DW_VR_MII_DIG_CTRL1_2G5_EN, but
xpcs_config_aneg_c37_sgmii() never unsets it. So, on a protocol change
from 2500base-x to sgmii, the DW_VR_MII_DIG_CTRL1_2G5_EN bit will remain
set.
Fixes: f27abde3042a ("net: pcs: add 2500BASEX support for Intel mGbE controller")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20250114164721.2879380-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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On a port with SGMII fixed-link at SPEED_1000, DW_VR_MII_DIG_CTRL1 gets
set to 0x2404. This is incorrect, because bit 2 (DW_VR_MII_DIG_CTRL1_2G5_EN)
is set.
It comes from the previous write to DW_VR_MII_AN_CTRL, because the "val"
variable is reused and is dirty. Actually, its value is 0x4, aka
FIELD_PREP(DW_VR_MII_PCS_MODE_MASK, DW_VR_MII_PCS_MODE_C37_SGMII).
Resolve the issue by clearing "val" to 0 when writing to a new register.
After the fix, the register value is 0x2400.
Prior to the blamed commit, when the read-modify-write was open-coded,
the code saved the content of the DW_VR_MII_DIG_CTRL1 register in the
"ret" variable.
Fixes: ce8d6081fcf4 ("net: pcs: xpcs: add _modify() accessors")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20250114164721.2879380-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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xpcs_get_interfaces() should no longer be used outside of the XPCS
code, so make it static.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1tTffk-007Roi-JM@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fill in the new PCS supported_interfaces member with the interfaces
that Lynx supports.
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tTffa-007RoV-Bo@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fill in the new PCS supported_interfaces member with the interfaces
that the Mediatek LynxI supports.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1tTffV-007RoP-8D@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fill in the new PCS supported_interfaces member with the interfaces
that XPCS supports.
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tTffQ-007RoJ-4u@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Neither does the LynxI PCS support QSGMII, nor is in-band-status supported
in 2500Base-X mode. Fix the pcs_inband_caps() method accordingly.
Fixes: 520d29bdda86 ("net: pcs: pcs-mtk-lynxi: implement pcs_inband_caps() method")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://patch.msgid.link/Z3aJccb1vW14aukg@pidgin.makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Report the PCS inband capabilities to phylink for XPCS.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NW-006L5V-I9@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Report the PCS in-band capabilities to phylink for the LynxI PCS.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NR-006L5P-E3@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Report the PCS in-band capabilities to phylink for the Lynx PCS.
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NM-006L5J-AH@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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While using "return" when calling a void returning function inside a
function that returns void doesn't cause a compiler warning, it looks
weird. Convert the bunch of if() statements to a switch() and remove
these return statements.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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xpcs_config_usxgmii() is only called from the xpcs_link_up() method, so
let's name it similarly to the SGMII and 1000BASEX functions.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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xpcs_link_up_sgmii() and xpcs_link_up_1000basex() are almost identical
with the exception of checking the speed and duplex for 1000BASE-X.
Combine the two functions.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We can now see that we have an open-coded version of
mii_bmcr_encode_fixed() when this is called with SPEED_1000:
val = BMCR_SPEED1000;
if (duplex == DUPLEX_FULL)
val |= BMCR_FULLDPLX;
Replace this with a call to mii_bmcr_encode_fixed().
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Rearrange xpcs_link_up_1000basex() to make it more obvious what will
happen in the following commit.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Remove an unnecessary switch() statement in xpcs_link_up_1000basex().
The only value this switch statement is interested in is SPEED_1000,
all other values lead to an error. Replace this with a simple if()
statement.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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As a general policy, we refer our generic register definitions over
vendor specific definitions. In XPCS, it appears that the register
layout follows a BMCR, BMSR and ADVERTISE register definition. We
already refer to this BMCR register using several different macros
which is confusing.
Convert the following register definitions to generic versions:
DW_VR_MII_MMD_CTRL => MII_BMCR
MDIO_CTRL1 => MII_BMCR
AN_CL37_EN => BMCR_ANENABLE
SGMII_SPEED_SS6 => BMCR_SPEED1000
SGMII_SPEED_SS13 => BMCR_SPEED100
MDIO_CTRL1_RESET => BMCR_RESET
DW_VR_MII_MMD_STS => MII_BMSR
DW_VR_MII_MMD_STS_LINK_STS => BMSR_LSTATUS
DW_FULL_DUPLEX => ADVERTISE_1000XFULL
iDW_HALF_DUPLEX => ADVERTISE_1000XHALF
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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According to commits 2a22b7ae2fa3 ("net: pcs: xpcs: adapt Wangxun NICs
for SGMII mode") and 2deea43f386d ("net: pcs: xpcs: add 1000BASE-X AN
interrupt support"), Wangxun devices need special VR_XS_PCS_DIG_CTRL1
settings for SGMII and 1000BASE-X. Both SGMII and 1000BASE-X use the
same settings.
Rather than placing these in the individual xpcs_config_*() functions,
move it to where we already test for the Wangxun devices in
xpcs_do_config().
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Place DW_VR_MII_DIG_CTRL1_2G5_EN with the other DW_VR_MII_DIG_CTRL1
definitions rather than in the middle of a register list.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the dev_*() family of functions to print all messages from the XPCS
driver so we know which instance issues the messages.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert the xpcs driver to use read_poll_timeout() when waiting for
reset to complete, rather than open-coding this.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The xpcs driver does a lot of read-modify-write operations on
registers, which leads to long-winded code to read the register, check
whether the read was successful, modify the value in some way, and then
write it back.
We have a mdiodev _modify() accessor that encapsulates this, and does
the register modification under the MDIO bus lock ensuring that the
modification is atomic with respect to other bus operations. Convert
the xpcs driver to use this accessor.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert xpcs to use the bitfield macros rather than definining the
bitfield shifts and open-coding the insertion and extraction of these
bitfields.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move the searching of the physical ID out of xpcs_create() and into
its own xpcs_identify() function, which makes it self contained.
This reduces the complexity in xpcs_craete(), making it easier to
follow, rather than having a lot of once-run code in the big for()
loop.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rename xpcs_get_id() to xpcs_read_id() which more closely reflects
the purpose of this function.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There should be no reason for anything outside the XPCS code to know
the contents of struct dw_xpcs - this is a private structure to XPCS.
Move the definition to the private pcs-xpcs.h header, leaving a
declaration in the global pcs/pcs-xpcs.h
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Provide a helper to provide the pointer to the phylink_pcs struct
given a valid xpcs pointer. This will be necessary when we make
struct dw_xpcs private to pcs-xpcs.c
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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xpcs_find_compat() is now always passed xpcs->id. Rather than always
dereferencing this in the caller, move it into xpcs_find_compat(),
thus making this function consistent with most of the other xpcs
functions in taking an xpcs pointer.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, xpcs uses an array of interfaces that each "compat" entry
supports. When looking up the compat entry for an interface, we
iterate over the compat entries and then over each interface.
Since each compat entry only has a single interface in its interfaces
array, replace the array with a single member in the compat structure.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is no reason for the struct dw_xpcs_compat arrays to be a fixed
size other than the way we iterate over them. The index into the array
isn't used for anything, and having them fixed size needlessly wastes
space.
Remove the enum that defines their size, and instead use an empty
array entry (with NULL ->supported) to mark the end of the array.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/net after the previous
conversion commits apart from the wireless drivers to use .remove(),
with the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR.
No conflicts and no adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As nothing outside pcs-xpcs.c calls neither xpcs_do_config() nor
xpcs_link_up(), remove their exports and prototypes.
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1svfMv-005ZIv-2M@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The XPCS sub-driver no longer uses the "interface" argument to the
xpcs_create_mdiodev() and xpcs_create_fwnode() functions. Remove
this now unnecessary argument, updating the stmmac driver
appropriately.
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1svfMp-005ZIp-UX@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Provide xpcs create/destroy functions that return and take a phylink_pcs
pointer instead of an xpcs pointer. This will be used by drivers that
have been converted to use phylink_pcs pointers internally, rather than
dw_xpcs pointers.
As xpcs_create_mdiodev() no longer makes use of its interface argument,
pass PHY_INTERFACE_MODE_NA into xpcs_create_mdiodev() until it is
removed later in the series.
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1svfMQ-005ZIL-Bi@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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xpcs_init_iface() no longer does anything with the interface mode, and
now merely does configuration related to the PMA ID. Move this back
into xpcs_create() as it doesn't warrant being a separate function
anymore.
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1svfML-005ZIF-84@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now that we no longer use the "interface" argument when creating the
XPCS sub-driver, remove it from xpcs_create() and xpcs_init_iface().
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1svfMG-005ZI9-3k@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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