| Age | Commit message (Collapse) | Author |
|---|
|
Add experimental QSFP+ support for the SolidRun Clearfog-CX
platform.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Use a Kconfig symbol to control the build of sfp-bus.c
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Allow any supported ethtool link modes to allow flexible SFP testing.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add support for the 10GBASE-R PCS internal PHY, which we only use to
check the link status, since it offers a single fixed speed at fixed
full duplex only.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add support for the PCS block, so we can dynamically configure it for
1000base-X or SGMII depending on the SFP module inserted. This gives
us more flexibility than using the MC firmware with a "fixed" link
type, which can only be setup to support a single interface mode.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
The rtnl_lock should not be held when calling phylink_create() or
phylink_destroy() since it leads to the deadlock listed below:
[ 18.656576] rtnl_lock+0x18/0x20
[ 18.659798] sfp_bus_add_upstream+0x28/0x90
[ 18.663974] phylink_create+0x2cc/0x828
[ 18.667803] dpaa2_mac_connect+0x14c/0x2a8
[ 18.671890] dpaa2_eth_connect_mac+0x94/0xd8
Fix this by moving the _lock() and _unlock() calls just outside of
phylink_of_phy_connect() and phylink_disconnect_phy().
Fixes: 719479230893 ("dpaa2-eth: add MAC/PHY support through phylink")
Reported-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add an API to find the mdio_device structure given a device tree node.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
There is a erratum on lx2160a which is: "SATA link is
going down sometime during sata initialization"
The workaround for it is to reset the lane. This patch
implements this workaround.
This erratum only exists on lx2160 Rev1, will be addressed
on Rev2 and later.
Signed-off-by: Peng Ma <peng.ma@nxp.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
On the LX2160A, there are lots (about 160) of IOMMU messages produced
during boot; this is excessive. Reduce the severity of these messages
to debug level.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
When modifying the objects attached to a DPRC, we may end up reading
the list of objects from the firmware while another thread is changing
changing the list. Since we read the objects via:
- Read the number of DPRC objects
- Iterate over this number of objects retrieving their details
and objects can be added in the middle of the list, this causes the
last few objects to unexpectedly disappear. The side effect of this
is if network interfaces are added after boot, they come and go. This
can result in already configured interfaces unexpectedly disappearing.
This has been easy to provoke with the restool interface added, and a
script which adds network interfaces one after each other; the kernel
rescanning runs asynchronously to restool.
NXP's approach to fixing this was to introduce a sysfs "attribute" in
their vendor tree, /sys/bus/fsl-mc/rescan, which userspace poked at to
request the kernel to rescan the DPRC object tree each time the
"restool" command completed (whether or not the tool changed anything.)
This has the effect of making the kernel's rescan synchronous with a
scripted restool, but still fails if we have multiple restools running
concurrently.
This patch takes a different approach:
- Read the number of DPRC objects
- Iterate over this number of objects retrieving their details
- Re-read the number of DPRC objects
- If the number of DPRC objects has changed while reading, repeat.
This solves the issue where network interfaces unexpectedly disappear
while adding others via ls-addni, because they've fallen off the end
of the object list.
This does *not* solve the issue that if an object is deleted while
another is added while we are reading the objects - that requires
firmware modification, or a more elaborate solution on the Linux side
(e.g., CRCing the object details and reading all objects at least
twice to check the CRC is stable.)
However, without firmware modification, this is probably the best way
to ensure that we read all the objects.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add the uapi interface for restool, picked from the QoriQ kernel tree
commit f2278d43b7ca ("bus: fsl-mc: add fsl-mc userspace support")
by Ioana Ciornei <ioana.ciornei@nxp.com>.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
|
|
Add support for reading and reporting the 10G link status on the
88e6390 in addition to the 1000BASE-X/2500BASE-X/SGMII status.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
The private MV88E6390_PCS_CONTROL_1 definitions in serdes.h reflects
the IEEE 802.3 standard PCS control register 1 definitions, only
offset by 0x1000 in the PHYXS register space. Rather than inventing
our own, use those that already exist, and name the register
MV88E6390_10G_CTRL1.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
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>
|
|
Avoid calling mac_config() when using split PCS, and the interface
remains the same.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
This is a correctness patch; no bug has been reported. It changes the
way we deal with the interface changing by ensuring that the link is
down before we call any of the *_config() methods.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Use a boolean to indicate whether mac_config() should be called during
a resolution. This allows us to have a common location during
resolution where mac_config() will be called.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Use a boolean flag in phylink_resolve() to indicate whether we should
re-run the resolve after the current one has completed. This will allow
us to retrigger the resolution for other conditions in future.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Rejig the link state tracking, so that we can use the current state
in a future patch.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Move the callback into the phylink_config structure, rather than
providing a callback to set this up.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Fill in the phy interface mode bitmap for the Marvell mvpp2 driver, so
phylink can know which interfaces are supported by the MAC.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Fill in the phy interface mode bitmap for the Marvell mvneta driver, so
phylink can know which interfaces are supported by the MAC.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Use the phy interface mode bitmaps for SFP modules and PHYs to select
the operating interface for SFPs and PHYs with SFPs.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add parsing the SFP EEPROM to supported phy interface modes.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
The mvpp2 code has tests scattered amongst the code to determine
whether the port supports the XLG, and whether the port supports
RGMII mode.
Rather than having these tests scattered, provide a couple of helper
functions, so that future additions can ensure that they get these
tests correct.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
DSA assumes that a bridge which has vlan filtering disabled is not
vlan aware, and ignores all vlan configuration. However, the kernel
software bridge code allows configuration in this state.
This causes the kernel's idea of the bridge vlan state and the
hardware state to disagree, so "bridge vlan show" indicates a correct
configuration but the hardware lacks all configuration. Even worse,
enabling vlan filtering on a DSA bridge immediately blocks all traffic
which, given the output of "bridge vlan show", is very confusing.
Provide an option that drivers can set to indicate they want to receive
vlan configuration even when vlan filtering is disabled. This is safe
for Marvell DSA bridges, which do not look up ingress traffic in the
VTU if the port is in 8021Q disabled state. Whether this change is
suitable for all DSA bridges is not known.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Display SFP module information verbosely, splitting the generic parts
into a separate file.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
|
Add a compatible for SFP+ cages. SFP+ cages are backwards compatible,
but the ethernet device behind them may not support the slower speeds
of SFP modules.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add debugfs support to SFP so that the internal state of the SFP state
machines and hardware signal state can be viewed from userspace, rather
than having to compile a debug kernel to view state state transitions
in the kernel log. The 'state' output looks like:
Module state: empty
Module probe attempts: 0 0
Device state: up
Main state: down
Fault recovery remaining retries: 5
PHY probe remaining retries: 12
moddef0: 0
rx_los: 1
tx_fault: 1
tx_disable: 1
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Cooled SFP+ transceivers need a longer initialisation (startup) time.
Select the initialisation time depending on the cooled option bit.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
phy_error() is called from phy_interrupt() or phy_state_machine(), and
uses WARN_ON() to print a backtrace. The backtrace is not useful when
reporting a PHY error.
However, a system may contain multiple ethernet PHYs, and phy_error()
gives no clue which one caused the problem.
Replace WARN_ON() with a call to phydev_err() so that we can see which
PHY had an error, and also inform the user that we are halting the PHY.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Allow the PHY to probe when there is no firmware, but do not allow the
link to come up by forcing the PHY state to PHY_HALTED in a similar way
to phy_error().
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Provide phy driver start/stop hooks so that the PHY driver knows when
the network driver is starting or stopping. This will be used for the
Marvell 10G driver so that we can sanely refuse to start if the PHYs
firmware is not present, and also so that we can sanely support SFPs
behind the PHY.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Support reporting the hardware resolved pause enablement states via
phylib, overriding our software implementation.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Allow phylib drivers to pass the hardware-resolved pause state to MAC
drivers, rather than using the software-based pause resolution code.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add support for configuring the LEDs. Macchiatobin has an oddity in
that the left LED goes out when the cable is connected, and flashes
when there's link activity. This is because the reset default for
the LED outputs assume that the LED is connected to supply, not to
ground. Add support for configuring the LED modes and polarities.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add support for the downshift tunable for the Marvell 88x3310 PHY.
Downshift is only usable with firmware 0.3.5.0 and later.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Soft-reset the PHY when coming out of low power mode, which seems to
be necessary with firmware versions 0.3.3.0 and 0.3.10.0.
This depends on ("net: marvell10g: report firmware version")
Fixes: c9cc1c815d36 ("net: phy: marvell10g: place in powersave mode at probe")
Reported-by: Matteo Croce <mcroce@redhat.com>
Tested-by: Matteo Croce <mcroce@redhat.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Report the firmware version when probing the PHY to allow issues
attributable to firmware to be diagnosed.
Tested-by: Matteo Croce <mcroce@redhat.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Add a separate set of PCS operations, which MAC drivers can use to
couple phylink with their associated MAC PCS layer. The PCS
operations include:
- pcs_get_state() - reads the link up/down, resolved speed, duplex
and pause from the PCS.
- pcs_config() - configures the PCS for the specified mode, PHY
interface type, and setting the advertisement.
- pcs_an_restart() - restarts 802.3 in-band negotiation with the
link partner
- pcs_link_up() - informs the PCS that link has come up, and the
parameters of the link. Link parameters are used to program the
PCS for fixed speed and non-inband modes.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Rename the bland 'ops' member of struct phylink to be a more
descriptive 'mac_ops' - this is necessary as we're about to introduce
another set of operations.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Change phylink_mii_c22_pcs_set_advertisement() to take only the PHY
interface and advertisement mask, rather than the full phylink state.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Implement helpers for PCS accessed via the MII bus using 802.3 clause
45 cycles for 10GBASE-R. Only link up/down is supported, 10G full
duplex is assumed.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
