This will allow the RX and TX ring statistics to be separated if needed.
In the next patch, we'll be able to only display RX or TX statistcis if
the channel is RX only or TX only.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We currently have 3 software ring counters, rx_l4_csum_errors,
rx_buf_errors, and missed_irqs.  The 1st two are RX counters and the
last one is a common counter.  Organize them into 2 structures
bnxt_rx_sw_stats and bnxt_cmn_sw_stats.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The purpose of this is to inform the RDMA driver the size of the doorbell
BAR that the L2 driver has mapped and the portion that is mapped
uncacheable.  The unchaeable portion is shared with the RoCE driver.
Any remaining unmapped doorbell BAR can be used by the RDMA driver for
its own purpose.  Currently, the entire L2 portion is mapped uncacheable.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Read the L2 doorbell size from the firmware and only map the portion
of the doorbell BAR for L2 use.  This will leave the remaining doorbell
BAR available for the RoCE driver to use.  The RoCE driver can map
the remaining portion as write-combining to support the push feature.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The driver provides completion ring or NQ doorbell offset for each
MSIX entry requested by the RDMA driver.  The NQ offset on 57500
chips is different than legacy chips.  Set it correctly based on
chip type for correctness.  The RDMA driver is ignoring this field
for the 57500 chips so it is not causing any problem.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Define the 57500 chip doorbell offsets instead of using the magic
values in the C file.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Kernel log messages for failed AP reset commands should be suppressed.
These are expected to fail on devices that do not have an AP.  Add
missing driver reload message after AP reset and log it in a common
way without duplication.
Signed-off-by: NEdwin Peer <edwin.peer@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ethtool ABI specifies that the reset operation should only clear
the flags that were actually reset. Setting the flags to zero after
a chip reset violates this because it does not include resetting the
application processor complex. Similarly, components that are not yet
defined are also not necessarily being reset.

The fact that chip reset does not cover the AP also means that it is
inappropriate to treat these two components exclusively of one another.
The ABI provides a mechanism to report a failure to reset independent
components via the returned bitmask, so it is also wrong to fail hard
if one of a set of independent resets is not possible.

It is incorrect to rely on the passed by reference flags in bnxt_reset(),
which are being updated as components are reset. The initially requested
value should be used instead so that hard errors do not propagate if any
earlier components could have been reset successfully.

Note, AP and chip resets are global in nature. Dedicated resets are
thus not currently supported.
Signed-off-by: NEdwin Peer <edwin.peer@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The case statement in bnxt_firmware_reset() dangerously mixes types.
This patch separates the application processor and whole chip resets
from the rest such that the selection is performed on a pure type.
Signed-off-by: NEdwin Peer <edwin.peer@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Extract bnxt_hwrm_firmware_reset() for performing firmware reset
operations. This new helper function will be used in a subsequent
patch to separate unrelated reset types out of bnxt_firmware_reset().
Signed-off-by: NEdwin Peer <edwin.peer@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The firmware does not expect the CRC to be included in the length
passed from the driver.  The firmware always configures the chip
to strip out the CRC.
Signed-off-by: NVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The current formulas to calculate the TQM slow path and fast path ring
context memory sizes are not quite correct.  TQM slow path entry is
array index 0 of ctx->tqm_mem[].  The other array entries are for fast
path.  Fix these sizes according to latest firmware spec. for 57500 and
newer chips.

Fixes: 3be8136c ("bnxt_en: Initialize context memory to the value specified by firmware.")
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Newer firmware spec. will specify the number of TQM rings to allocate
context memory for.  Use the firmware specified value and fall back
to the old value derived from bp->max_q if it is not available.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Changes include additional statistics, ECN support, context memory
interface change for better TQM context memory sizing, firmware
health status definitions, etc.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Extract code to ena_indirection_table_set() to make
the code cleaner.
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The macros in ena_com.h have inconsistent spaces between
the macro name and it's value.

This commit sets all the macros to have a single space between
the name and value.
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The 'ENA_REGS_RESET_SHUTDOWN' enum indicates a normal driver
shutdown / removal procedure.

Also, a comment is added to one of the reset reason assignments for
code clarity.
Signed-off-by: NShay Agroskin <shayagr@amazon.com>
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Before this commit there was a function prototype named
ena_com_get_ena_admin_polling_mode() that was never implemented.

This patch simply deletes it.
Signed-off-by: NIgor Chauskin <igorch@amazon.com>
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

1. Add support for getting tx drops from the device and saving them
in the driver.
2. Report tx via netdev stats.
Signed-off-by: NIgor Chauskin <igorch@amazon.com>
Signed-off-by: NGuy Tzalik <gtzalik@amazon.com>
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add unmask interrupts statistics to ethtool.
Signed-off-by: NNetanel Belgazal <netanel@amazon.com>
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Both key and func parameters are pointers on the stack.
Setting them to NULL does nothing.
The original intent was to leave the key and func unset in this case,
but for this to happen nothing needs to be done as the calling
function ethtool_get_rxfh() already clears key and func.

This commit removes the above described useless code.
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This commit contains 2 cosmetic changes:

1. Use ena_com_check_supported_feature_id() in
   ena_com_hash_key_fill_default_key() instead of rewriting
   its implementation. This also saves us a superfluous admin
   command by using the cached value.

2. Change if conditions in ena_com_rss_init() to be clearer.
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently in the driver we are setting the hash function to be CRC32.
Starting with this commit we want to change the default behaviour so that
we set the hash function to be Toeplitz instead.
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Current code does not allow setting the hash function without
changing the key. This commit enables it.

To achieve this we separate ena_com_get_hash_function() to 2 functions:
ena_com_get_hash_function() - which gets only the hash function, and
ena_com_get_hash_key() - which gets only the hash key.

Also return 0 instead of rc at the end of ena_get_rxfh() since all
previous operations succeeded.
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In case the "func" parameter is NULL we now return "-EINVAL".
This shouldn't happen in general, but when it does happen, this is the
proper way to handle it.

We also check func for NULL in the beginning of the function, as there
is no reason to do all the work and realize in the end of the function
it was useless.
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently when ena_set_hash_function() fails the hash function is
restored to the previous value by calling an admin command to get
the hash function from the device.

In this commit we avoid the admin command, by saving the previous
hash function before calling ena_set_hash_function() and using this
previous value to restore the hash function in case of failure of
ena_set_hash_function().
Signed-off-by: NSameeh Jubran <sameehj@amazon.com>
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Measurements of the MDIO bus have shown that driving the MDIO bus
using interrupts is slow. Back to back MDIO transactions take about
90us, with 25us spent performing the transaction, and the remainder of
the time the bus is idle.

Replacing the completion interrupt with polled IO results in back to
back transactions of 40us. The polling loop waiting for the hardware
to complete the transaction takes around 28us. Which suggests
interrupt handling has an overhead of 50us, and polled IO nearly
halves this overhead, and doubles the MDIO performance.

Care has to be taken when setting the MII_SPEED register, or it can
trigger an MII event> That then upsets the polling, due to an
unexpected pending event.
Suggested-by: NChris Heally <cphealy@gmail.com>
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add idtcm_adjphase() to support PHC write phase mode.
Signed-off-by: NVincent Cheng <vincent.cheng.xh@renesas.com>
Acked-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add adjust_phase to ptp_clock_caps capability to allow
user to query if a PHC driver supports adjust phase with
ioctl PTP_CLOCK_GETCAPS command.
Signed-off-by: NVincent Cheng <vincent.cheng.xh@renesas.com>
Reviewed-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Adds adjust phase function to take advantage of a PHC
clock's hardware filtering capability that uses phase offset
control word instead of frequency offset control word.
Signed-off-by: NVincent Cheng <vincent.cheng.xh@renesas.com>
Reviewed-by: NRichard Cochran <richardcochran@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch is to add tc flower offload for the enetc IEEE 802.1Qci(PSFP)
function. There are four main feature parts to implement the flow
policing and filtering for ingress flow with IEEE 802.1Qci features.
They are stream identify(this is defined in the P802.1cb exactly but
needed for 802.1Qci), stream filtering, stream gate and flow metering.
Each function block includes many entries by index to assign parameters.
So for one frame would be filtered by stream identify first, then
flow into stream filter block by the same handle between stream identify
and stream filtering. Then flow into stream gate control which assigned
by the stream filtering entry. And then policing by the gate and limited
by the max sdu in the filter block(optional). At last, policing by the
flow metering block, index choosing at the fitering block.
So you can see that each entry of block may link to many upper entries
since they can be assigned same index means more streams want to share
the same feature in the stream filtering or stream gate or flow
metering.
To implement such features, each stream filtered by source/destination
mac address, some stream maybe also plus the vlan id value would be
treated as one flow chain. This would be identified by the chain_index
which already in the tc filter concept. Driver would maintain this chain
and also with gate modules. The stream filter entry create by the gate
index and flow meter(optional) entry id and also one priority value.
Offloading only transfer the gate action and flow filtering parameters.
Driver would create (or search same gate id and flow meter id and
 priority) one stream filter entry to set to the hardware. So stream
filtering do not need transfer by the action offloading.
This architecture is same with tc filter and actions relationship. tc
filter maintain the list for each flow feature by keys. And actions
maintain by the action list.

Below showing a example commands by tc:
> tc qdisc add dev eth0 ingress
> ip link set eth0 address 10:00:80:00:00:00
> tc filter add dev eth0 parent ffff: protocol ip chain 11 \
	flower skip_sw dst_mac 10:00:80:00:00:00 \
	action gate index 10 \
	sched-entry open 200000000 1 8000000 \
	sched-entry close 100000000 -1 -1

Command means to set the dst_mac 10:00:80:00:00:00 to index 11 of stream
identify module. Then setting the gate index 10 of stream gate module.
Keep the gate open for 200ms and limit the traffic volume to 8MB in this
sched-entry. Then direct the frames to the ingress queue 1.
Signed-off-by: NPo Liu <Po.Liu@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch is to let ethtool enable/disable the tc flower offload
features. Hardware ENETC has the feature of PSFP which is for per-stream
policing. When enable the tc hw offloading feature, driver would enable
the IEEE 802.1Qci feature. It is only set the register enable bit for
this feature not enable for any entry of per stream filtering and stream
gate or stream identify but get how much capabilities for each feature.
Signed-off-by: NPo Liu <Po.Liu@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The side band interrupt service routine is not available on chips
like 7211, or rather, it does not permit the signaling of wake-up
events due to the complex interrupt hierarchy.

Move the wake-up event accounting into a .resume_noirq function,
account for possible wake-up events and clear the MPD/HFB interrupts
from there, while leaving the hardware untouched until the resume
function proceeds with doing its usual business.

Because bcmgenet_wol_power_down_cfg() now enables the MPD and HFB
interrupts, it is invoked by a .suspend_noirq function to prevent
the servicing of interrupts after the clocks have been disabled.
Signed-off-by: NDoug Berger <opendmb@gmail.com>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It is possible for a GSI channel's state to be changed as a result
of an action by a different execution environment.  Specifically,
the modem is able to issue a GSI generic command that causes a state
change on a GSI channel associated with the AP.

A channel's state only needs to be known when a channel is allocated
or deallocaed, started or stopped, or reset.  So there is little
value in caching the state anyway.

Stop recording a copy of the channel's last known state, and instead
fetch the true state from hardware whenever it's needed.  In such
cases, *do* record the state in a local variable, in case an error
message reports it (so the value reported is the value seen).
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Pass a channel pointer rather than a GSI pointer and channel ID to
gsi_channel_state().
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Chip generations are mostly compatible register-wise, but there are still
some differences. Therefore we've made some of first generation (A1) code
non-static to re-use it where possible.

Some pieces are A2 specific, in which case we redefine/extend such APIs.
Signed-off-by: NIgor Russkikh <irusskikh@marvell.com>
Signed-off-by: NMark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds basic A2 HW initialization / deinitialization.
Signed-off-by: NIgor Russkikh <irusskikh@marvell.com>
Co-developed-by: NDmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: NDmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: NMark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds common functions (mostly FW-related), which are
needed for basic A2 HW initialization / deinitialization.
Signed-off-by: NDmitry Bogdanov <dbogdanov@marvell.com>
Co-developed-by: NIgor Russkikh <irusskikh@marvell.com>
Signed-off-by: NIgor Russkikh <irusskikh@marvell.com>
Signed-off-by: NMark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>