atlantic: Fix statistics logic for production hardware

B0 is the main and widespread device revision of atlantic2 HW. In the
current state, driver will incorrectly fetch the statistics for this
revision.

Fixes: 5cfd54d7dc186 ("net: atlantic: minimal A2 fw_ops")
Signed-off-by: Dmitry Bogdanov <dbezrukov@marvell.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

ethernet: constify references to netdev->dev_addr in drivers

This big patch sprinkles const on local variables and
function arguments which may refer to netdev->dev_addr.

Commit 406f42fa0d3c ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Some of the changes here are not strictly required - const
is sometimes cast off but pointer is not used for writing.
It seems like it's still better to add the const in case
the code changes later or relevant -W flags get enabled
for the build.

No functional changes.

Link: https://lore.kernel.org/r/20211014142432.449314-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: atlantic: implement media detect feature via phy tunables

Mediadetect is another name for the EDPD (energy detect power down).
This feature allows device to save extra power when no link is available.

PHY goes into the extreme power saving mode and only periodically wakes up
and checks for the link.

AQC devices has fixed check period of 6 seconds

The feature may increase linkup time.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: implement phy downshift feature

PHY downshift allows phy to try renegotiate if link is unstable
and can carry higher speed.

AQC devices has integrated PHY which is controlled by MAC firmware.
Thus, driver defines new ethtool callbacks to implement phy tunables
via netdev.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: add hwmon getter for MAC temperature

This patch adds the possibility to obtain MAC temperature via hwmon.
On A1 there are two separate temperature sensors.
On A2 there's only one temperature sensor, which is used for reporting
both MAC and PHY temperature.

Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: add support for 64-bit reads/writes

This patch adds support for 64-bit reads/writes where applicable, e.g.
A2 supports them.

Signed-off-by: Pavel Belous <pbelous@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: move FRAC_PER_NS to aq_hw.h

This patch moves FRAC_PER_NS to aq_hw.h so that it can be used in both
hw_atl (A1) and hw_atl2 (A2) in the future.

Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: disable PTP on AQC111, AQC112

This patch disables PTP on AQC111 and AQC112 due to a known HW issue,
which can cause datapath issues.

Ideally PTP block should have been disabled via PHY provisioning, but
unfortunately many units have been shipped with enabled PTP block.
Thus, we have to work around this in the driver.

Fixes: dbcd6806af420 ("net: aquantia: add support for Phy access")
Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: A2: report link partner capabilities

This patch adds link partner capabilities reporting support on A2.
In particular, the following capabilities are available for reporting:
* link rate;
* EEE;
* flow control.

Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: A2: half duplex support

This patch adds support for 10M/100M/1G half duplex rates, which are
supported by A2 in additional to full duplex rates supported by A1.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: QoS implementation: min_rate

This patch adds support for mqprio min_rate limiters.

A2 HW supports Weighted Strict Priority (WSP) arbitration for Tx Descriptor
Queue scheduling among TCs, which can be used for min_rate shaping.

Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: QoS implementation: max_rate

This patch adds initial support for mqprio rate limiters (max_rate only).

Atlantic HW supports Rate-Shaping for time-sensitive traffic at per
Traffic Class (TC) granularity.
Target rate is defined by:
* nominal link rate (always 10G);
* rate factor (ratio between nominal rate and max allowed).

Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: QoS implementation: multi-TC support

This patch adds multi-TC support.

PTP is automatically disabled when the user enables more than 2 TCs,
otherwise traffic on TC2 won't quite work, because it's reserved for PTP.

Signed-off-by: Dmitry Bezrukov <dbezrukov@marvell.com>
Co-developed-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Co-developed-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: changes for multi-TC support

This patch contains the following changes:
* add cfg->is_ptp (used for PTP enable/disable switch, which
is described in more details below);
* add cfg->tc_mode (A1 supports 2 HW modes only);
* setup queue to TC mapping based on TC mode on A2;
* remove hw_tx_tc_mode_get / hw_rx_tc_mode_get hw_ops.

In the first generation of our hardware (A1), a whole traffic class is
consumed for PTP handling in FW (FW uses it to send the ptp data and to
send back timestamps).
The 'is_ptp' flag introduced in this patch will be used in to automatically
disable PTP when a conflicting configuration is detected, e.g. when
multiple TCs are enabled.

Signed-off-by: Dmitry Bezrukov <dbezrukov@marvell.com>
Co-developed-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: changes for multi-TC support

This patch contains the following changes:
* access cfg via aq_nic_get_cfg() in aq_nic_start() and aq_nic_map_skb();
* call aq_nic_get_dev() just once in aq_nic_map_skb();
* move ring allocation/deallocation out of aq_vec_alloc()/aq_vec_free();
* add the missing aq_nic_deinit() in atl_resume_common();
* rename 'tcs' field to 'tcs_max' in aq_hw_caps_s to differentiate it from
the 'tcs' field in aq_nic_cfg_s, which is used for the current number of
TCs;
* update _TC_MAX defines to the actual number of supported TCs;
* move tx_tc_mode register defines slightly higher (just to keep the order
of definitions);
* separate variables for TX/RX buff_size in hw_atl*_hw_qos_set();
* use AQ_HW_*_TC instead of hardcoded magic numbers;
* actually use the 'ret' value in aq_mdo_add_secy();

Signed-off-by: Dmitry Bezrukov <dbezrukov@marvell.com>
Co-developed-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: A2 hw_ops skeleton

This patch adds basic hw_ops layout for A2.

Actual implementation will be added in the follow-up patches.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: minimal A2 HW bindings required for fw_ops

This patch adds the bare minimum of A2 HW bindings required to
get fw_ops working.

Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: move IS_CHIP_FEATURE to aq_hw.h

IS_CHIP feature will be used to differentiate between A1 and A2,
where necessary. Thus, move it to aq_hw.h, rename it and make
it accept the 'hw' pointer.

Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: simplify hw_get_fw_version() usage

hw_get_fw_version() never fails, so this patch simplifies its
usage by utilizing return value instead of output argument.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: add hw_soft_reset, hw_prepare to hw_ops

A2 will have a different implementation of these 2 APIs, so
this patch moves them to hw_ops in preparation for A2.

Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Co-developed-by: Dmitry Bezrukov <dbezrukov@marvell.com>
Signed-off-by: Dmitry Bezrukov <dbezrukov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: MACSec offload skeleton

This patch adds basic functionality for MACSec offloading for Atlantic
NICs.

MACSec offloading functionality is enabled if network card has
appropriate FW that has MACSec offloading enabled in config.

Actual functionality (ingress, egress, etc) will be added in follow-up
patches.

Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: ptp gpio adjustments

Clock adjustment data should be passed to FW as well, otherwise in some
cases a drift was observed when using GPIO features.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: loopback tests via private flags

Here we add a number of ethtool private flags
to allow enabling various loopbacks on HW.

Thats useful for verification and bringup works.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: add fw configuration memory area

Device FW has a separate memory area where various
config fields are stored and could be used by the
driver.

Here we modify download/upload infrastructure to
allow accessing this area.

Lateron this will be used to configure various behaviours

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: atlantic: adding ethtool physical identification

`ethtool -p eth0` will blink leds helping identify
physical port.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add support for PIN funcs

Depending on FW configuration we can manage from 0 to 3 PINs for periodic output
and from 0 to 1 ext ts PIN for getting TS for external event.

Ext TS PIN functionality is implemented via periodic timestamps polling
directly from PHY, because right now there is now way to receive the
PIN trigger interrupt from phy.

The polling interval is 15 milliseconds.

Co-developed-by: Egor Pomozov <epomozov@marvell.com>
Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add support for Phy access

GPIO PIN control and access is done by direct phy manipulation.
Here we add an aq_phy module which is able to access phy registers
via MDIO access mailbox.

Access is controlled via HW semaphore.

Co-developed-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: implement data PTP datapath

Here we do alloc/free IRQs for PTP rings.
We also implement processing of PTP packets on TX and RX sides.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add PTP rings infrastructure

Add implementations of PTP rings alloc/free.

PTP desing on this device uses two separate rings on a separate traffic
class for traffic rx/tx.

Third ring (hwts) is not a traffic ring, but is used only to receive timestamps
of the transmitted packets.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add basic ptp_clock callbacks

Basic HW functions implemented for adjusting frequency,
adjusting time, getting and setting time.
With these callbacks we now do register ptp clock in the system.

Firmware interface parts are defined for PTP requests and interactions.
Enable/disable PTP counters in HW on clock register/unregister.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 101 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

net: aquantia: add link interrupt fields

Declare macroes and nic fields to support link interrupt
handling

Signed-off-by: Nikita Danilov <ndanilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add infrastructure to readout chip temperature

Ability to read the chip temperature from memory
via hwmon interface

Signed-off-by: Yana Esina <yana.esina@aquantia.com>
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add support of rx-vlan-filter offload

Since it uses the same NIC table as rx flow vlan filter therefore
rx-flow vlan filter accepts only vlans that present on the interface
in case of rx-vlan-filter is on.

Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add ethertype and PCP to rx flow filters

L2 EtherType filters allows to filter packet by EtherType field or
both EtherType and User Priority (PCP) field of 802.1Q.
UserPriority (vlan) parameter must be accompanied by mask 0x1FFF. That
is to distinguish VLAN filter from L2 Ethertype filter with
UserPriority since both User Priority and VLAN ID are passed in the
same 'vlan' parameter.

Example:
To add a filter that directs IP4 packess of priority 3 to queue 3:
ethtool -N <ethX> flow-type ether proto 0x800 vlan 0x600 m 0x1FFF \
action 3 loc 16

Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add vlan id to rx flow filters

The VLAN filter (VLAN id) is compared against 16 filters.
VLAN id must be accompanied by mask 0xF000. That is to distinguish
VLAN filter from L2 Ethertype filter with UserPriority since both
User Priority and VLAN ID are passed in the same 'vlan' parameter.
Flow type may be any as it is not matched for VLAN filter.
Due to fixed order of the rules in the NIC, the location 0-15 are
reserved for vlan filters.

Example:
To add a rule that directs packets from VLAN 2001 to queue 5:
ethtool -N <ethX> flow-type ip4 vlan 2001 m 0xF000 action 5 loc 0

Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: add support of L3/L4 ntuple filters

Add support of L3/L4 5-tuple {protocol, src-ip, dst-ip, src-port, dst-port}
filters. Mask is not supported. Src-port and dst-port are only compared for
TCP/UDP/SCTP packets. Both IPv4 and IPv6 are supported.
The supported actions are the drop and the queue assignment.
Due to fixed order of the rules in the NIC, the location 32-39 are
reserved for L3/L4 5-tuple filters. The locations 32 and 36 are
reserved for IPv6 filters.

Examples:
sudo ethtool -N eth0 flow-type ip6 src-ip 2001:db8:0:f101::2 \
dst-ip 2001:db8:0:f101::5 action -1 loc 36

sudo ethtool -N eth0 flow-type udp4 src-ip 10.0.0.4 \
dst-ip 10.0.0.7 src-port 2000 dst-port 2001 action 2 loc 32

Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: allow rx checksum offload configuration

RX Checksum offloads could not be configured and ignored netdev features
flag for checksumming.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: synchronized flow control between mac/phy

Flow control statuses were not synchronized between blocks,
that caused packets/link drop on some corner cases, when
MAC sent PFC although Phy was not expecting these to come.

Driver should readout the negotiated FC from phy and
configure RX block accordigly.

This is done on each link change event with information from FW.

Fixes: 288551de45aa ("net: aquantia: Implement rx/tx flow control ethtools callback")
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: renaming for better visibility

Removed extra characters from the names of structures to unify prefixes
used through the driver code (we normally use hw_atl for hw specifics).
HW_ATL_B0_ and HW_ATL_A0_ are the same and useless copies.

Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: implement EEE support

Support of Energy-Efficient Ethernet to aQuantia NIC's via ethtool
(according to the IEEE 802.3az specifications)

Signed-off-by: Yana Esina <yana.esina@aquantia.com>
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Tested-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: implement WOL support

Add WOL support. Currently only magic packet
(ethtool -s <ethX> wol g) feature is implemented.

Remove hw_set_power and move that to FW_OPS set_power:
because WOL configuration behaves differently on 1x and 2x
firmwares

Signed-off-by: Yana Esina <yana.esina@aquantia.com>
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Tested-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: vlan unicast address list correct handling

Setting up macvlan/macvtap networks over atlantic NIC results
in no traffic over these networks because ndo_set_rx_mode did
not listed UC MACs as registered in unicast filter.

Here we fix that taking into account maximum number of UC
filters supported by hardware. If more than MAX addresses were
registered, we just enable promisc and/or allmulti to pass
the traffic in.

We also remove MULTICAST_ADDRESS_MAX constant from aq_cfg since
thats not a configurable parameter at all.

Fixes: b21f502 ("net:ethernet:aquantia: Fix for multicast filter handling.")
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Add renegotiate ethtool operation support

Adds ethtool -r|--negotiate operation support. It triggers special
control bit on FW interface causing FW to restart link negotiation.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: Anton Mikaev <amikaev@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Improve adapter init/deinit logic

We now pass link drop status to FW on init/deinit. This is required
to inform FW that driver took/released a control on link.
FW then will manage its own state and device power profile based
on this information. To improve management we remove mpi_set
function which ambiguously took both state and speed parameters.

Deinit callback is now a part of FW ops, as it actually manages the FW.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Ethtool based ring size configuration

Implemented ring size setup, min/max validation and reconfiguration in
runtime.

Signed-off-by: Anton Mikaev <amikaev@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Introduce global AQC hardware reset sequence

The detailed reset sequence ensures all HW components are in aligned
state before NIC startup. It also supports cards with signed firmware (RBL)
and checks if their FW is valid.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Introduce support for new firmware on AQC cards

This defines fw2x operations table and corresponding methods.
Some of the functions are being shared with 1.x firmware

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Introduce firmware ops callbacks

New AQC cards will have an updated firmware with new binary interface.
This patch extracts firmware specific operations into a separate table
and prepares for the introduction of new fw 2.x and 3.x

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Change confusing no_ff_addr to more meaningful name

The address to check if HW is not dead/hang could be stored in
capabilities, since it is a constant. Change its name to better reflect
the idea.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Remove create/destroy from hw ops

These ops are not related to HW and are now implemented in pci module.
Thus, remove these ops pointers and implementation.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Cleanup pci functions module

Driver contained a dead code of maintaining multiple pci port instances.
That will never be used since for each pci function a separate NIC
instance is created.
Simplify this, making pci module only responsible for pci resource
management.
NIC initialization is also simplified accordingly.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Introduce new AQC devices and capabilities

A number of new AQC devices is going to be released. To support more
flexible capabilities management a number of static caps instances is now
declared. Devices now are mainly differs by supported speeds, but in future
more parameters will be customized. A set of AQC100 devices have
fibre media, not twisted pair - this is also reflected in
new capabilities definitions.

HW level also now directly exports hw_ops for each of A0/B0 hardware.

PCI configuration now uses a device configuration table where each
device ID is explicitly mapped with hardware OPs and capabilities
structures.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Eliminate aq_nic structure abstraction

aq_nic_s was hidden in aq_nic_internal.h, that made it difficult to access
nic fields and structures from other modules.
This change moves aq_nic_s struct into aq_nic.h and thus makes it available
to other driver modules, mainly pci module and hw related module.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Add const qualifiers for hardware ops tables

Hardware operations and capabilities tables are constants and
never changed. Declare these as constants.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Cleanup hardware access modules

Use direct aq_hw_s *self reference where possible
Eliminate useless abstraction PHAL, duplicated structures definitions,
Simplify nic config structure creation and management.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Cleanup status flags accesses

Usage of aq_obj_s structure is noop, here we remove it
replacing access to flags filed directly.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Extend stat counters to 64bit values

Device hardware provides only 32bit counters. Using these directly
causes byte counters to overflow soon. A separate nic level structure
with 64 bit counters is now used to collect incrementally all the stats
and report these counters to ethtool stats and ndev stats.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Fix actual speed capabilities reporting

Different hardware device Ids correspond to different maximum speed
available. Extra checks were added for devices D108 and D109 to
remove unsupported speeds from these device capabilities list.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Enable coalescing management via ethtool interface

Aquantia NIC allows both TX and RX interrupt throttle rate (ITR)
management, but this was used in a very limited way via predefined
values. This patch allows to setup ITR default values via module
command line arguments and via standard ethtool coalescing settings.

Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: aquantia: Reset nic statistics on interface up/down

Internal statistics system on chip never gets reset until hardware
reboot. This is quite inconvenient in terms of ethtool statistics usage.

This patch implements incremental statistics update inside of
service callback.

Upon nic initialization, first request is done to fetch
initial stat data, current collected stat data gets cleared.
Internal statistics mailbox readout is improved to save space and
increase readability

Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net:ethernet:aquantia: Fix for incorrect speed index.

The driver choose the optimal interrupt throttling settings depends
of current link speed.
Due this bug link_status field from aq_hw is never updated and as result
always used same interrupt throttling values.

Fixes: 3d2ff7eebe26 ("net: ethernet: aquantia: Atlantic hardware abstraction layer")
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: ethernet: aquantia: Hardware interface and utility functions

Add functions to interface with the hardware and some utility functions.

Signed-off-by: Alexander Loktionov <Alexander.Loktionov@aquantia.com>
Signed-off-by: Dmitrii Tarakanov <Dmitrii.Tarakanov@aquantia.com>
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: Dmitry Bezrukov <Dmitry.Bezrukov@aquantia.com>
Signed-off-by: David M. VomLehn <vomlehn@texas.net>
Signed-off-by: David S. Miller <davem@davemloft.net>