ConnectX supports offloading of various encapsulations and decapsulations
(e.g. VXLAN), which are performed by 'Packet Reformat' action. Starting
with ConnectX-6 DX, a new reformat type is supported - REMOVE_HEADER, which
allows deleting an arbitrary size chunk at the selected position in the packet.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

Joel Stanley says:

====================
net: Add LiteETH network driver

This adds a driver for the LiteX network device, LiteEth.

v4 Fixes the bindings and adds r-b tags from Gabriel and Rob.

v3 Updates the bindings to describe the slots in a way that makes more
sense for the hardware, instead of trying to fit some existing
properties. The driver is updated to use these bindings, and fix some
issues pointed out by Gabriel.

v2 Addresses feedback from Jakub, with detailed changes in each patch.

It also moves to the litex register accessors so the system works on big
endian litex platforms. I tested with mor1k on an Arty A7-100T.

I have removed the mdio aspects of the driver as they are not needed for
basic operation. I will continue to work on adding support in the
future, but I don't think it needs to block the mac driver going in.

The binding describes the mdio registers, and has been fixed to not show
any warnings against dtschema master.

LiteEth is a simple driver for the FPGA based Ethernet device used in various
RISC-V, PowerPC's microwatt, OpenRISC's mor1k and other FPGA based
systems on chip.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

LiteX is a soft system-on-chip that targets FPGAs. LiteETH is a basic
network device that is commonly used in LiteX designs.

The driver was first written in 2017 and has been maintained by the
LiteX community in various trees. Thank you to all who have contributed.
Co-developed-by: Gabriel Somlo <gsomlo@gmail.com>
Co-developed-by: David Shah <dave@ds0.me>
Co-developed-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Tested-by: Gabriel Somlo <gsomlo@gmail.com>
Reviewed-by: Gabriel Somlo <gsomlo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

LiteETH is a small footprint and configurable Ethernet core for FPGA
based system on chips.

The hardware is parametrised by the size and number of the slots in it's
receive and send buffers. These are described as properties, with the
commonly used values set as the default.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Remove the 'imply' statements, these apparently are not doing
what I expected.  Platform modules which are used by the driver
still need to be enabled in the overall config for them to be
used, but there isn't a hard dependency on them.

Use 'depend' for selectable modules which provide functions
used directly by the driver.
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

This adds a function for what has been magic register writes so far.
It's based on recent changes to vendor drivers r8101, r8168, r8125,
and deals with events that trigger an early ASPM L1 exit.
Description of the bits has been kindly provided by Realtek.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This change extends the existing GRO coalesce test to
allow running on top of a veth pair, so that no H/W dep
is required to run them.

By default gro.sh will use the veth backend, and will try
to use exiting H/W in loopback mode if a specific device
name is provided with the '-i' command line option.

No functional change is intended for the loopback-based
tests, just move all the relevant initialization/cleanup
code into the related script.

Introduces a new initialization helper script for the
veth backend, and plugs the correct helper script according
to the provided command line.

Additionally, enable veth-based tests by default.

v1 -> v2:
  - drop unused code in setup_veth_ns() - Willem
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge tag 'mac80211-next-for-net-next-2021-08-26' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
A few more things:
 * Use correct DFS domain for self-managed devices
 * some preparations for transmit power element handling
   and other 6 GHz regulatory handling
 * TWT support in AP mode in mac80211
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Both SKB_FRAG_PAGE_ORDER are defined to the same value in
net/core/sock.c and drivers/vhost/net.c.

Move the SKB_FRAG_PAGE_ORDER definition to net/core/sock.h,
as both net/core/sock.c and drivers/vhost/net.c include it,
and it seems a reasonable file to put the macro.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

If otx2_mbox_get_rsp() fails, otx2_set_flowkey_cfg() need return an
error code.

Fixes: e7938365 ("octeontx2-pf: Fix algorithm index in MCAM rules with RSS action")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently during CAC start or other radar events, the DFS
domain is fetched from cfg based on global DFS domain,
even if the wiphy regdomain disagrees.

But this could be different in case of self managed wiphy's
in case the self managed driver updates its database or supports
regions which has DFS domain set to UNSET in cfg80211 local
regdomain.

So for explicitly self-managed wiphys, just use their DFS
domain.
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Link: https://lore.kernel.org/r/1629934730-16388-1-git-send-email-srirrama@codeaurora.orgSigned-off-by: Johannes Berg <johannes.berg@intel.com>

Shannon Nelson says:

====================
ionic: queue and filter mgmt updates

After a pair of simple code cleanups, we change the mac filter
management to split the updates between the driver's filter
list and the device's filter list so that we can keep the calls
to dev_uc_sync() and dev_mc_sync() under the netif_addr_lock
in ndo_set_rx_mode, and then sync the driver's list to the
device later in the rx_mode work task.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Make sure we go into PROMISC mode when we have too many
filters by specifically counting the filters that successfully
get saved to the firmware.

The device advertises max_ucast_filters and max_mcast_filters,
but really only has max_ucast_filters slots available for
uc and mc filters combined.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

The filter counting in ionic_lif_addr() really isn't useful,
and potentially misleading, especially when we're checking in
ionic_lif_rx_mode() to see if we need to go into PROMISC mode.
We can safely refactor this and remove a calling layer.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

In order to separate the atomic needs of __dev_uc_sync()
and __dev_mc_sync() from the safe rx_mode handling, we need
to have the ndo handler manipulate the driver's filter list,
and later have the driver sync the filters to the firmware,
outside of the atomic context.

Here we put __dev_mc_sync() and __dev_uc_sync() back into the
ndo callback to give them their netif_addr_lock context and
have them update the driver's filter list, flagging changes
that should be made to the device filter list.  Later, in the
rx_mode handler, we read those hints and sync up the device's
list as needed.

It is possible for multiple add/delete requests to come from
the stack before the rx_mode task processes the list, but the
handling of the sync status flag should keep everything sorted
correctly.  For example, if a delete of an existing filter is
followed by another add before the rx_mode task is run, as can
happen when going in and out of a bond, the add will cancel
the delete and no actual changes will be sent to the device.

We also add a check in the watchdog to see if there are any
stray unsync'd filters, possibly left over from a filter
overflow and waiting to get sync'd after some other filter
gets removed to make room.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

Since only two functions call through ionic_set_rx_mode(), one
that can sleep and one that can't, we can split the function
and put the bits of code into the callers.  This removes an
unnecessary calling layer.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

With the move of mac filter handling to outside of the
ndo_rx_mode context using the IONIC_DW_TYPE_RX_MODE,
we no longer are using IONIC_DW_TYPE_RX_ADDR_ADD and
IONIC_DW_TYPE_RX_ADDR_DEL and they can be removed.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

Parse and store the transmit power envelope element.
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/20210820122041.12157-8-wgong@codeaurora.orgSigned-off-by: Johannes Berg <johannes.berg@intel.com>

IEEE Std 802.11ax™-2021 makes changes to the transmit power envelope
element, adjust the code accordingly.
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/20210820122041.12157-7-wgong@codeaurora.orgSigned-off-by: Johannes Berg <johannes.berg@intel.com>

IEEE Std 802.11ax™-2021 added regulatory info subfield in HE operation
element, add it to the header file.
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/20210820122041.12157-3-wgong@codeaurora.orgSigned-off-by: Johannes Berg <johannes.berg@intel.com>

Do not include unnecessary headers.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Do not include unnecessary headers.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Do not include unnecessary headers.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Do not include unnecessary headers.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Do not include unnecessary headers.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Do not include unnecessary headers.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Juhee Kang says:

====================
samples: pktgen: enhance the ability to print the execution results of samples

This patch series improves the ability to print the execution result of pktgen
samples by adding a line which calls the function before termination and adding
trap SIGINT. Also, this series documents the latest pktgen usage options.

Currently, pktgen samples print the execution result when terminated usually.
However, sample03 is not working properly.

This is results of sample04 and sample03:

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample04_many_flows.sh -n 1
    Running... ctrl^C to stop
    Device: eth0@0
    Result: OK: 19(c5+d13) usec, 1 (60byte,0frags)
    51762pps 24Mb/sec (24845760bps) errors: 0

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample03_burst_single_flow.sh -n 1
    Running... ctrl^C to stop

Because sample03 doesn't call the function which prints the execution result
when terminated normally, unlike other samples. So the first commit solves
this issue by adding a line which calls the function before termination.

Also, all pktgen samples are able to send infinite messages per thread by
setting the count option to 0, and pktgen is stopped by Ctrl-C. However,
the sample besides sample{3...5} don't work appropriately because Ctrl-C stops
the script, not just pktgen.

This is results of samples:

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample04_many_flows.sh -n 0
    Running... ctrl^C to stop
    ^CDevice: eth0@0
    Result: OK: 569657(c569538+d118) usec, 84650 (60byte,0frags)
    148597pps 71Mb/sec (71326560bps) errors: 0

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample01_simple.sh -n 0
    Running... ctrl^C to stop
    ^C

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample02_multiqueue.sh -n 0
    Running... ctrl^C to stop
    ^C

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample06_numa_awared_queue_irq_affinity.sh -n 0
    Running... ctrl^C to stop
    ^C

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_bench_xmit_mode_netif_receive.sh -n 0
    Running... ctrl^C to stop
    ^C

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_bench_xmit_mode_queue_xmit.sh -n 0
    Running... ctrl^C to stop
    ^C

So the second commit solves this issue by adding trap SIGINT. Also, changes
control_c function to print_results to maintain consistency with other samples
on the first commit and second commit.

And current pktgen.rst documentation doesn't add the latest pktgen sample
usage options such as count and IPv6, and so on. Also, the old pktgen
sample scripts are still included in the document. The old scripts were removed
by the commit a4b6ade8 ("samples/pktgen: remove remaining old pktgen
sample scripts").

Thus, the last commit documents the latest pktgen sample usage and removes
old sample scripts. And fixes a minor typo.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently, the pktgen.rst documentation doesn't cover the latest pktgen
sample usage options such as count and IPv6, and so on. Also, this
documentation includes the old sample scripts which are no longer use
because it was removed by the commit a4b6ade8 ("samples/pktgen :
remove remaining old pktgen sample scripts")

Thus, this commit documents pktgen sample usage using the latest options
and removes old sample scripts, and fixes a minor typo.
Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

All pktgen samples can send indefinitely num messages per thread by
setting the count option to 0(-n 0). If running sample with setting
count 0 and press Ctrl-C to stop this program, the program prints the
result of the execution so far. Currently, the samples besides
sample{3...5} don't work properly. Because Ctrl-C stops the script, not
just pktgen.

This is results of samples:

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample04_many_flows.sh -n 0
    Running... ctrl^C to stop
    ^CDevice: eth0@0
    Result: OK: 569657(c569538+d118) usec, 84650 (60byte,0frags)
    148597pps 71Mb/sec (71326560bps) errors: 0

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample01_simple.sh -n 0
    Running... ctrl^C to stop
    ^C

In order to solve this, this commit adds trap SIGINT. Also, this commit
changes control_c function to print_result to maintain consistency with
other samples.
Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently, most pktgen samples print the execution result when the
program is terminated normally. However, sample03 doesn't work
appropriately.

This is results of samples:

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample04_many_flows.sh -n 1
    Running... ctrl^C to stop
    Device: eth0@0
    Result: OK: 19(c5+d13) usec, 1 (60byte,0frags)
    51762pps 24Mb/sec (24845760bps) errors: 0

    # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample03_burst_single_flow.sh -n 1
    Running... ctrl^C to stop

The reason why it doesn't print the execution result when the program is
terminated usually is that sample03 doesn't call the function which
prints the result, unlike other samples.

So, this commit solves this issue by calling the function before
termination. Also, this commit changes control_c function to
print_result to maintain consistency with other samples.
Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Sunil Goutham says:

====================
Octeontx2: Traffic shaping and SDP link config support

This patch series adds support for traffic shaping configuration
on all silicons available after 96xx C0. And also adds SDP link
related configuration needed when Octeon is connected as an end-point
and traffic needs to flow from end-point to host and vice versa.

Series also has other changes like
- New mbox messages in admin function driver for PF/VF drivers
  to retrieve available HW resource count. HW resources like block LFs,
  bandwidth profiles etc are covered.
- Added PTP device ID for new CN10K and 95O silicons.
- etc
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Added mbox for PF/VF drivers to retrieve current ingress bandwidth
profile free count. Also added current policer timeunit
configuration info based on which ratelimiting decisions can be
taken by PF/VF drivers.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

New usecases are popping up where in user wants to install common MCAM
filters for all interfaces. Having channel verification will result in
duplicating such MCAM filters for each of the ingress interface. Hence
removed channel verification.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

CN10K slicon has different device id for PTP device.
Hence this patch updates the driver with new id.
Though ptp driver being a separate driver AF manages
configuring PTP block by all PFs. To manage ptp, AF
driver checks in its probe whether
1. ptp hardware device found on silicon
2. A driver is bound to ptp device
3. The ptp driver probe is successful

In failure of cases 1 and 3, AF proceeds with out ptp
and for case 2 defers the probe. This patch refactors
code also to check for all the PTP device ids given in
ptp device ids table for case 1.

Also added PTP device ID for 95O silicon
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Upon receiving the MBOX_MSG_FREE_RSRC_CNT, the AF will find out the
current number of free resources and reply it back to the requester. No
guarantee is given on the future state of the free resources yet.
If another requester sends MBOX_MSG_ATTACH_RESOURCES after this call,
the number of available resources might change.
Signed-off-by: George Cherian <george.cherian@marvell.com>
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Added support for packet IO via SDK links which is used when
Octeon is connected as a end-point. Traffic host to end-point
and vice versa flow through SDP links. This patch also support
dual SDP blocks supported in 98xx silicon.
Signed-off-by: Radha Mohan Chintakuntla <radhac@marvell.com>
Signed-off-by: Nalla Pradeep <pnalla@marvell.com>
Signed-off-by: Subrahmanyam Nilla <snilla@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In 98xx, there are 2 NIX blocks and 4 LBK blocks present. The way
these NIX-LBK should be configured depends on the use case. By
default loopback functionality is supported in AF VF pairs which
are attached to NIX0 and NIX1 LFs alternatively to ensure load
balancing. NIX0 transmits a packet to LBK1 which will be received
by NIX1 and packet transmitted by NIX1 will get received by NIX0 via
LBK2.

There are some requirements where only one AF VF is used and respective
NIX is expected to operate in a mode where it can receive it own packet
back. This can be achieved if NIX0 sends packet to LBK0 and not LBK1.
Adding a flag in LF alloc request mailbox which can setup NIX0 to use
LBK0 and NIX1 can use LBK3.
Signed-off-by: Harman Kalra <hkalra@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Unlike OcteonTx2, the channel numbers used by CGX/RPM
and LBK on CN10K silicons aren't fixed in HW. They are
SW programmable, hence we cannot derive transmit link
from static channel numbers anymore. Get the same from
admin function via mailbox.
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Before C0 HW revision, The RSS adder was computed based the
following static formula.

rss_adder<7:0> = flow_tag<7:0> ^ flow_tag<15:8> ^
flow_tag<23:16> ^ flow_tag<31:24>

The above scheme has the following drawbacks:
1) It is not in line with other standard NIC behavior.
2) There can be an SW use case where SW can compute the hash
upfront using Toeplitz function and predict the queue selection
to optimize some packet lookup function. The nonstandard
way of doing XOR makes the consumer to not predict the queue selection.

C0 HW revision onwards, The HW can configure the
rss_adder<7:0> as flow_tag<7:0> to align with standard NICs.

This patch adds an option to select legacy RSS adder mode
vs standard NIC behavior by setting NIX_LF_RSS_TAG_LSB_AS_ADDER flag.

Since this bit field is used as reserved in old HW revisions,
No need to have an additional HW version check.
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Starting from 96xx C0 onwards all silicons support traffic shaping.
This patch enables that feature along with other changes
- When PIR/CIR shaping config is modified, toggle SW_XOFF
  for config to take effect
- Before SMQ flush, clear SW_XOFF at all parent schedulers
- Support to read current transmit scheduler configuration via mbox
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>