Add driver for the Internal RMII PHY found in the Amlogic Meson GXL SoCs.

This PHY seems to only implement some standard registers and need some
workarounds to provide autoneg values from vendor registers.

Some magic values are currently used to configure the PHY, and this a
temporary setup until clarification about these registers names and
registers fields are provided by Amlogic.
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In order to support PHY switching on Amlogic GXL SoCs, add support for
16bit and 32bit registers sizes.
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support for the variant of amac hardware present in the Broadcom
Northstar2 based SoCs.  Northstar2 requires an additional register to be
configured with the port speed/duplexity (NICPM).  This can be added to
the link callback to hide it from the instances that do not use this.
Also, clearing of the pending interrupts on init is required due to
observed issues on some platforms.
Signed-off-by: NJon Mason <jon.mason@broadcom.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Acked-by: NRafał Miłecki <rafal@milecki.pl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change the bgmac driver to allow for phy's defined by the device tree
Signed-off-by: NJon Mason <jon.mason@broadcom.com>
Acked-by: NRafał Miłecki <rafal@milecki.pl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The BCM54810 PHY requires some semi-unique configuration, which results
in some additional configuration in addition to the standard config.
Also, some users of the BCM54810 require the PHY lanes to be swapped.
Since there is no way to detect this, add a device tree query to see if
it is applicable.
Inspired-by: NVikas Soni <vsoni@broadcom.com>
Signed-off-by: NJon Mason <jon.mason@broadcom.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add a helper function to read the AUXCTL register for the BCM54xx.  This
mirrors the bcm54xx_auxctl_write function already present in the code.
Signed-off-by: NJon Mason <jon.mason@broadcom.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The dev member of struct sti_dwmac is not used anywhere in the driver
so lets just remove it.
Signed-off-by: NJoachim Eastwood <manabian@gmail.com>
Acked-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Rename sti_dwmac_init to sti_dwmac_set_mode which is a better
description for what it really does.
Signed-off-by: NJoachim Eastwood <manabian@gmail.com>
Acked-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add clock error handling to probe and in the process move clock enabling
out of sti_dwmac_init() to make this easier.
Signed-off-by: NJoachim Eastwood <manabian@gmail.com>
Acked-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The sti_dwmac_init() function is called both from probe and resume.
Since DT properties doesn't change between suspend/resume cycles move
parsing of this parameter into sti_dwmac_parse_data() where it belongs.
Signed-off-by: NJoachim Eastwood <manabian@gmail.com>
Acked-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Implement PM callbacks and driver remove in the driver instead
of relying on the init/exit hooks in stmmac_platform. This gives
the driver more flexibility in how the code is organized.

Eventually the init/exit callbacks will be deprecated in favor
of the standard PM callbacks and driver remove function.
Signed-off-by: NJoachim Eastwood <manabian@gmail.com>
Acked-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since sti_dwmac_parse_data() sets dwmac->clk to NULL if not clock was
provided in DT and NULL is a valid clock there is no need to check for
NULL before using this clock.
Signed-off-by: NJoachim Eastwood <manabian@gmail.com>
Acked-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since dwmac-sti is a DT only driver checking for OF node is not necessary.
Signed-off-by: NJoachim Eastwood <manabian@gmail.com>
Acked-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove including <generated/utsrelease.h> that don't need it.
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Acked-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The msix_entries memory can be freed by a previous suspend or
remove, so don't crash on close when it isn't there. Also only
clear the interrupts when the interface is up, because there
aren't any when it is not up.
Signed-off-by: NMark Rustad <mark.d.rustad@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

For some Tx paths (e.g., tpacket_snd()), ixgbe_atr may be
passed down an sk_buff that has the network and transport
header in the paged data, so it needs to make sure these
headers are available in the headlen bytes to calculate the
l4_proto.

This patch expect that network and transport headers are
already available in the non-paged header dat.  The assumption
is that the caller has set this up if l4_proto based Tx
steering is desired.
Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com>
Reviewed-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Commit 9f12df90 ("ixgbe: Store VXLAN port number in network order")
incorrectly checks for hdr.ipv4->protocol != IPPROTO_UDP
in ixgbe_atr(). This check should be for "==" instead.
Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com>
Reviewed-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

We were using an old Alpha version of the X550 phy ID.  This was leading
to unnecessary queries of the PHY.  I removed the old ID (which shouldn't
be on any HW) and add the two that are.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch add X553 FW ALEF support for B0.  ALEF is the new unified
FW.  This contains updated register defines for ALEF speed
configuration.  Likewise it also removes the AN_CNTL_8 usage from
the native SFI flow as it is no longer supported by FW.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Fix an issue where set_phy_power was NULL for X550 copper devices
because get_invariants was called before hw->device_id was set.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Introduce ixgbe_link_operations struct with the following changes:

	read_i2c_combined		=> read_link
	read_i2c_combined_unlocked	=> read_link_unlocked
	write_i2c_combined		=> write_link
	write_i2c_combined_unlocked	=> write_link_unlocked

This will allow X550EM_a to override these methods for MDIO access
while X550EM_x provides methods to use I2C combined access. This
also adds a new structure, ixgbe_link_info, to hold information
about the link. Initially this is just method pointers and a bus
address.

The functions involved in combined I2C accesses were moved from
ixgbe_phy.c to ixgbe_x550.c. The underlying functions that carry
out the combined I2C accesses were left in ixgbe_phy.c because
they share some functions with other I2C methods.

v2 - set hw->link.ops in probe.
v3 - check ii->link_ops before setting it since we don't have it
for all devices.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Remove SFP ixfi code since there is no HW that currently supports it.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The msix_entries memory can be freed by a previous suspend or
remove, so don't crash on close when it isn't there.
Signed-off-by: NMark Rustad <mark.d.rustad@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch adds X553 flow control auto negotiation for fiber and
backplain.  To enable this new function pointers were added as well
as creating a function to dynamically set function pointer we can't
define only on MAC type.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Read the PHY register twice in order to get the correct value for
autoneg_status.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Replace some ixgbe specific MDIO defines with their equivalent
from the kernel.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch updates ixgbe_setup_phy_link_generic to set/unset
auto-negotiation for all speeds. This ensures that unsupported
speeds are unset. This is necessary since the PHY NVM may
advertise unsupported speeds.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch adds support to get the LED link active via the LEDCTL
register.  If the LEDCTL register does not have LED link active
(LED mode field = 0x0100) set then default LED link active returned.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NKrishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

X553 doesn't need all the initialization that X552 did for iXFI. This
patch will allow native SPI SFP+ to work with X553 devices.  Future
patches will add additional configuration as needed.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Most infrastructure can be reused, provide separate handling
of context offsets and exit codes.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

nfp_net_bpf_offload() takes all .setup_tc() parameters but it
doesn't use them at the moment.  Remove unnecessary ones to make
it possible for XDP to reuse this function.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add XDP support.  Separate stack's and XDP's TX rings logically.
Add functions for handling XDP_TX and cleanup of XDP's TX rings.
For XDP allocate all RX buffers as separate pages and map them
with DMA_BIDIRECTIONAL.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Calculate packet offsets early in nfp_net_rx() so that we will be
able to use them in upcoming XDP handler.  While at it move relevant
variables into the loop scope.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Allow changing the number of rings via ethtool .set_channels API.
Runtime reconfig needs to be extended to handle number of rings.
We need to be able to activate interrupt vectors before rings are
assigned to them.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We will need to rerun the initialization of the RSS indirection table
after the number of rings is changed.  Move the code to a separate
function.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Instead of fixing ring -> vector relations up in ring swap functions
put the reassignment into a helper function which will reinit all
links.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Upcoming XDP support will break the assumption that one can iterate
over IRQ vectors to get to all the rings easily.  Use nn->.x_ring
arrays directly.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Ring allocation helpers encapsulate all ring allocation and
initialization steps nicely.  Reuse them on .ndo_open() path.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

"Shadow" in ring helpers used to mean that the helper will allocate
rings without touching existing configuration, this was used for
reconfiguration while the device was running.  We will soon use
the same helpers for .ndo_open() path, so replace "shadow" with
"ring_set".

No functional changes.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

All functions which need to reallocate ring resources at runtime
look very similar.  Centralize that logic into a separate function.
Encapsulate configuration parameters in a structure.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>